Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1276
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1276 ! raeburn 4: # $Id: lonnet.pm,v 1.1275 2014/12/16 19:57:56 musolffc Exp $
1.178 www 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: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 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:
1.971 jms 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:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.1182 foxr 78:
1.1173 foxr 79: use Encode;
80:
1.1245 raeburn 81: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 82: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
83: %managerstab);
1.871 albertel 84:
85: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
86: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
87: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 88: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 89:
1.1 albertel 90: use IO::Socket;
1.31 www 91: use GDBM_File;
1.208 albertel 92: use HTML::LCParser;
1.88 www 93: use Fcntl qw(:flock);
1.870 albertel 94: use Storable qw(thaw nfreeze);
1.539 albertel 95: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 96: use Cache::Memcached;
1.676 albertel 97: use Digest::MD5;
1.790 albertel 98: use Math::Random;
1.1024 raeburn 99: use File::MMagic;
1.807 albertel 100: use LONCAPA qw(:DEFAULT :match);
1.740 www 101: use LONCAPA::Configuration;
1.1160 www 102: use LONCAPA::lonmetadata;
1.1167 droeschl 103: use LONCAPA::Lond;
1.1117 foxr 104:
1.1090 raeburn 105: use File::Copy;
1.676 albertel 106:
1.195 www 107: my $readit;
1.550 foxr 108: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 109:
1.619 albertel 110: require Exporter;
111:
112: our @ISA = qw (Exporter);
113: our @EXPORT = qw(%env);
114:
1.449 matthew 115:
1.1187 raeburn 116: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 117: {
118: my $logid;
1.1187 raeburn 119: sub write_log {
1.1188 raeburn 120: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
1.1184 raeburn 121: if ($context eq 'course') {
122: if (($cnum eq '') || ($cdom eq '')) {
123: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
124: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
125: }
1.957 raeburn 126: }
1.1184 raeburn 127: $logid ++;
1.957 raeburn 128: my $now = time();
129: my $id=$now.'00000'.$$.'00000'.$logid;
1.1184 raeburn 130: my $logentry = {
131: $id => {
132: 'exe_uname' => $env{'user.name'},
133: 'exe_udom' => $env{'user.domain'},
134: 'exe_time' => $now,
135: 'exe_ip' => $ENV{'REMOTE_ADDR'},
136: 'delflag' => $delflag,
137: 'logentry' => $storehash,
138: 'uname' => $uname,
139: 'udom' => $udom,
140: }
141: };
142: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 143: }
144: }
1.1 albertel 145:
1.163 harris41 146: sub logtouch {
147: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 148: unless (-e "$execdir/logs/lonnet.log") {
149: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 150: close $fh;
151: }
152: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
153: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
154: }
155:
1.1 albertel 156: sub logthis {
157: my $message=shift;
158: my $execdir=$perlvar{'lonDaemons'};
159: my $now=time;
160: my $local=localtime($now);
1.448 albertel 161: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 162: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
163: print $fh $logstring;
1.448 albertel 164: close($fh);
165: }
1.1 albertel 166: return 1;
167: }
168:
169: sub logperm {
170: my $message=shift;
171: my $execdir=$perlvar{'lonDaemons'};
172: my $now=time;
173: my $local=localtime($now);
1.448 albertel 174: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
175: print $fh "$now:$message:$local\n";
176: close($fh);
177: }
1.1 albertel 178: return 1;
179: }
180:
1.850 albertel 181: sub create_connection {
1.853 albertel 182: my ($hostname,$lonid) = @_;
1.851 albertel 183: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 184: Type => SOCK_STREAM,
185: Timeout => 10);
186: return 0 if (!$client);
1.890 albertel 187: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 188: my $result = <$client>;
189: chomp($result);
190: return 1 if ($result eq 'done');
191: return 0;
192: }
193:
1.983 raeburn 194: sub get_server_timezone {
195: my ($cnum,$cdom) = @_;
196: my $home=&homeserver($cnum,$cdom);
197: if ($home ne 'no_host') {
198: my $cachetime = 24*3600;
199: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
200: if (defined($cached)) {
201: return $timezone;
202: } else {
203: my $timezone = &reply('servertimezone',$home);
204: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
205: }
206: }
207: }
1.850 albertel 208:
1.1106 raeburn 209: sub get_server_distarch {
210: my ($lonhost,$ignore_cache) = @_;
211: if (defined($lonhost)) {
212: if (!defined(&hostname($lonhost))) {
213: return;
214: }
215: my $cachetime = 12*3600;
216: if (!$ignore_cache) {
217: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
218: if (defined($cached)) {
219: return $distarch;
220: }
221: }
222: my $rep = &reply('serverdistarch',$lonhost);
223: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
224: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
225: $rep eq '') {
226: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
227: }
228: }
229: return;
230: }
231:
1.993 raeburn 232: sub get_server_loncaparev {
1.1073 raeburn 233: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 234: if (defined($lonhost)) {
235: if (!defined(&hostname($lonhost))) {
236: undef($lonhost);
237: }
238: }
239: if (!defined($lonhost)) {
240: if (defined(&domain($dom,'primary'))) {
241: $lonhost=&domain($dom,'primary');
242: if ($lonhost eq 'no_host') {
243: undef($lonhost);
244: }
245: }
246: }
247: if (defined($lonhost)) {
1.1073 raeburn 248: my $cachetime = 12*3600;
249: if (!$ignore_cache) {
250: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
251: if (defined($cached)) {
252: return $loncaparev;
253: }
254: }
255: my ($answer,$loncaparev);
256: my @ids=¤t_machine_ids();
257: if (grep(/^\Q$lonhost\E$/,@ids)) {
258: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 259: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 260: $loncaparev = $1;
261: }
262: } else {
263: $answer = &reply('serverloncaparev',$lonhost);
264: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
265: if ($caller eq 'loncron') {
266: my $ua=new LWP::UserAgent;
1.1082 raeburn 267: $ua->timeout(4);
1.1073 raeburn 268: my $protocol = $protocol{$lonhost};
269: $protocol = 'http' if ($protocol ne 'https');
270: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
271: my $request=new HTTP::Request('GET',$url);
272: my $response=$ua->request($request);
273: unless ($response->is_error()) {
274: my $content = $response->content;
1.1081 raeburn 275: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 276: $loncaparev = $1;
277: }
278: }
279: } else {
280: $loncaparev = $loncaparevs{$lonhost};
281: }
1.1081 raeburn 282: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 283: $loncaparev = $1;
284: }
1.993 raeburn 285: }
1.1073 raeburn 286: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 287: }
288: }
289:
1.1074 raeburn 290: sub get_server_homeID {
291: my ($hostname,$ignore_cache,$caller) = @_;
292: unless ($ignore_cache) {
293: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
294: if (defined($cached)) {
295: return $serverhomeID;
296: }
297: }
298: my $cachetime = 12*3600;
299: my $serverhomeID;
300: if ($caller eq 'loncron') {
301: my @machine_ids = &machine_ids($hostname);
302: foreach my $id (@machine_ids) {
303: my $response = &reply('serverhomeID',$id);
304: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
305: $serverhomeID = $response;
306: last;
307: }
308: }
309: if ($serverhomeID eq '') {
310: $serverhomeID = $machine_ids[-1];
311: }
312: } else {
313: $serverhomeID = $serverhomeIDs{$hostname};
314: }
315: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
316: }
317:
1.1121 raeburn 318: sub get_remote_globals {
319: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 320: my ($result,%returnhash,%whatneeded);
321: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 322: foreach my $what (sort(keys(%{$whathash}))) {
323: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 324: my ($response,$cached);
1.1121 raeburn 325: unless ($ignore_cache) {
1.1125 raeburn 326: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 327: }
328: if (defined($cached)) {
1.1125 raeburn 329: $returnhash{$what} = $response;
1.1121 raeburn 330: } else {
1.1125 raeburn 331: $whatneeded{$what} = 1;
1.1121 raeburn 332: }
333: }
1.1125 raeburn 334: if (keys(%whatneeded) == 0) {
335: $result = 'ok';
336: } else {
1.1121 raeburn 337: my $requested = &freeze_escape(\%whatneeded);
338: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 339: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
340: ($rep eq 'unknown_cmd')) {
341: $result = $rep;
342: } else {
343: $result = 'ok';
1.1121 raeburn 344: my @pairs=split(/\&/,$rep);
1.1125 raeburn 345: foreach my $item (@pairs) {
346: my ($key,$value)=split(/=/,$item,2);
347: my $what = &unescape($key);
348: my $hashid = $lonhost.'-'.$what;
349: $returnhash{$what}=&thaw_unescape($value);
350: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 351: }
352: }
353: }
354: }
1.1125 raeburn 355: return ($result,\%returnhash);
1.1121 raeburn 356: }
357:
1.1124 raeburn 358: sub remote_devalidate_cache {
1.1241 raeburn 359: my ($lonhost,$cachekeys) = @_;
360: my $items;
361: return unless (ref($cachekeys) eq 'ARRAY');
362: my $cachestr = join('&',@{$cachekeys});
363: my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
1.1124 raeburn 364: return $response;
365: }
366:
1.1 albertel 367: # -------------------------------------------------- Non-critical communication
368: sub subreply {
369: my ($cmd,$server)=@_;
1.838 albertel 370: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 371: #
372: # With loncnew process trimming, there's a timing hole between lonc server
373: # process exit and the master server picking up the listen on the AF_UNIX
374: # socket. In that time interval, a lock file will exist:
375:
376: my $lockfile=$peerfile.".lock";
377: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
378: sleep(1);
379: }
380: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 381: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 382: #
1.550 foxr 383: # We'll give the connection a few tries before abandoning it. If
384: # connection is not possible, we'll con_lost back to the client.
385: #
386: my $client;
387: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
388: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
389: Type => SOCK_STREAM,
390: Timeout => 10);
1.869 albertel 391: if ($client) {
1.550 foxr 392: last; # Connected!
1.850 albertel 393: } else {
1.853 albertel 394: &create_connection(&hostname($server),$server);
1.550 foxr 395: }
1.850 albertel 396: sleep(1); # Try again later if failed connection.
1.550 foxr 397: }
398: my $answer;
399: if ($client) {
1.704 albertel 400: print $client "sethost:$server:$cmd\n";
1.550 foxr 401: $answer=<$client>;
402: if (!$answer) { $answer="con_lost"; }
403: chomp($answer);
404: } else {
405: $answer = 'con_lost'; # Failed connection.
406: }
1.1 albertel 407: return $answer;
408: }
409:
410: sub reply {
411: my ($cmd,$server)=@_;
1.838 albertel 412: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 413: my $answer=subreply($cmd,$server);
1.65 www 414: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 415: &logthis("<font color=\"blue\">WARNING:".
1.12 www 416: " $cmd to $server returned $answer</font>");
417: }
1.1 albertel 418: return $answer;
419: }
420:
421: # ----------------------------------------------------------- Send USR1 to lonc
422:
423: sub reconlonc {
1.891 albertel 424: my ($lonid) = @_;
425: my $hostname = &hostname($lonid);
426: if ($lonid) {
427: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
428: if ($hostname && -e $peerfile) {
429: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
430: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
431: Type => SOCK_STREAM,
432: Timeout => 10);
433: if ($client) {
434: print $client ("reset_retries\n");
435: my $answer=<$client>;
436: #reset just this one.
437: }
438: }
439: return;
440: }
441:
1.836 www 442: &logthis("Trying to reconnect lonc");
1.1 albertel 443: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 444: if (open(my $fh,"<$loncfile")) {
1.1 albertel 445: my $loncpid=<$fh>;
446: chomp($loncpid);
447: if (kill 0 => $loncpid) {
448: &logthis("lonc at pid $loncpid responding, sending USR1");
449: kill USR1 => $loncpid;
450: sleep 1;
1.836 www 451: } else {
1.12 www 452: &logthis(
1.672 albertel 453: "<font color=\"blue\">WARNING:".
1.12 www 454: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 455: }
456: } else {
1.836 www 457: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 458: }
459: }
460:
461: # ------------------------------------------------------ Critical communication
1.12 www 462:
1.1 albertel 463: sub critical {
464: my ($cmd,$server)=@_;
1.838 albertel 465: unless (&hostname($server)) {
1.672 albertel 466: &logthis("<font color=\"blue\">WARNING:".
1.89 www 467: " Critical message to unknown server ($server)</font>");
468: return 'no_such_host';
469: }
1.1 albertel 470: my $answer=reply($cmd,$server);
471: if ($answer eq 'con_lost') {
472: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 473: my $answer=reply($cmd,$server);
1.1 albertel 474: if ($answer eq 'con_lost') {
475: my $now=time;
476: my $middlename=$cmd;
1.5 www 477: $middlename=substr($middlename,0,16);
1.1 albertel 478: $middlename=~s/\W//g;
479: my $dfilename=
1.305 www 480: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
481: $dumpcount++;
1.1 albertel 482: {
1.448 albertel 483: my $dfh;
484: if (open($dfh,">$dfilename")) {
485: print $dfh "$cmd\n";
486: close($dfh);
487: }
1.1 albertel 488: }
489: sleep 2;
490: my $wcmd='';
491: {
1.448 albertel 492: my $dfh;
493: if (open($dfh,"<$dfilename")) {
494: $wcmd=<$dfh>;
495: close($dfh);
496: }
1.1 albertel 497: }
498: chomp($wcmd);
1.7 www 499: if ($wcmd eq $cmd) {
1.672 albertel 500: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 501: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 502: &logperm("D:$server:$cmd");
503: return 'con_delayed';
504: } else {
1.672 albertel 505: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 506: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 507: &logperm("F:$server:$cmd");
508: return 'con_failed';
509: }
510: }
511: }
512: return $answer;
1.405 albertel 513: }
514:
1.755 albertel 515: # ------------------------------------------- check if return value is an error
516:
517: sub error {
518: my ($result) = @_;
1.756 albertel 519: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 520: if ($2 == 2) { return undef; }
521: return $1;
522: }
523: return undef;
524: }
525:
1.783 albertel 526: sub convert_and_load_session_env {
527: my ($lonidsdir,$handle)=@_;
528: my @profile;
529: {
1.917 albertel 530: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
531: if (!$opened) {
1.915 albertel 532: return 0;
533: }
1.783 albertel 534: flock($idf,LOCK_SH);
535: @profile=<$idf>;
536: close($idf);
537: }
538: my %temp_env;
539: foreach my $line (@profile) {
1.786 albertel 540: if ($line !~ m/=/) {
541: return 0;
542: }
1.783 albertel 543: chomp($line);
544: my ($envname,$envvalue)=split(/=/,$line,2);
545: $temp_env{&unescape($envname)} = &unescape($envvalue);
546: }
547: unlink("$lonidsdir/$handle.id");
548: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
549: 0640)) {
550: %disk_env = %temp_env;
551: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
552: untie(%disk_env);
553: }
1.786 albertel 554: return 1;
1.783 albertel 555: }
556:
1.374 www 557: # ------------------------------------------- Transfer profile into environment
1.780 albertel 558: my $env_loaded;
559: sub transfer_profile_to_env {
1.788 albertel 560: my ($lonidsdir,$handle,$force_transfer) = @_;
561: if (!$force_transfer && $env_loaded) { return; }
1.374 www 562:
1.720 albertel 563: if (!defined($lonidsdir)) {
564: $lonidsdir = $perlvar{'lonIDsDir'};
565: }
566: if (!defined($handle)) {
567: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
568: }
569:
1.786 albertel 570: my $convert;
571: {
1.917 albertel 572: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
573: if (!$opened) {
1.915 albertel 574: return;
575: }
1.786 albertel 576: flock($idf,LOCK_SH);
577: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
578: &GDBM_READER(),0640)) {
579: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
580: untie(%disk_env);
581: } else {
582: $convert = 1;
583: }
584: }
585: if ($convert) {
586: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
587: &logthis("Failed to load session, or convert session.");
588: }
1.374 www 589: }
1.783 albertel 590:
1.786 albertel 591: my %remove;
1.783 albertel 592: while ( my $envname = each(%env) ) {
1.433 matthew 593: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
594: if ($time < time-300) {
1.783 albertel 595: $remove{$key}++;
1.433 matthew 596: }
597: }
598: }
1.783 albertel 599:
1.619 albertel 600: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 601: $env_loaded=1;
1.783 albertel 602: foreach my $expired_key (keys(%remove)) {
1.433 matthew 603: &delenv($expired_key);
1.374 www 604: }
1.1 albertel 605: }
606:
1.916 albertel 607: # ---------------------------------------------------- Check for valid session
608: sub check_for_valid_session {
1.1245 raeburn 609: my ($r,$name,$userhashref) = @_;
1.916 albertel 610: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 611: if ($name eq '') {
612: $name = 'lonID';
613: }
614: my $lonid=$cookies{$name};
1.916 albertel 615: return undef if (!$lonid);
616:
617: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 618: my $lonidsdir;
619: if ($name eq 'lonDAV') {
620: $lonidsdir=$r->dir_config('lonDAVsessDir');
621: } else {
622: $lonidsdir=$r->dir_config('lonIDsDir');
623: }
1.916 albertel 624: return undef if (!-e "$lonidsdir/$handle.id");
625:
1.917 albertel 626: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
627: return undef if (!$opened);
1.916 albertel 628:
629: flock($idf,LOCK_SH);
630: my %disk_env;
631: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
632: &GDBM_READER(),0640)) {
633: return undef;
634: }
635:
636: if (!defined($disk_env{'user.name'})
637: || !defined($disk_env{'user.domain'})) {
638: return undef;
639: }
1.1245 raeburn 640:
641: if (ref($userhashref) eq 'HASH') {
642: $userhashref->{'name'} = $disk_env{'user.name'};
643: $userhashref->{'domain'} = $disk_env{'user.domain'};
1.1212 raeburn 644: }
1.1245 raeburn 645:
1.916 albertel 646: return $handle;
647: }
648:
1.830 albertel 649: sub timed_flock {
650: my ($file,$lock_type) = @_;
651: my $failed=0;
652: eval {
653: local $SIG{__DIE__}='DEFAULT';
654: local $SIG{ALRM}=sub {
655: $failed=1;
656: die("failed lock");
657: };
658: alarm(13);
659: flock($file,$lock_type);
660: alarm(0);
661: };
662: if ($failed) {
663: return undef;
664: } else {
665: return 1;
666: }
667: }
668:
1.5 www 669: # ---------------------------------------------------------- Append Environment
670:
671: sub appenv {
1.949 raeburn 672: my ($newenv,$roles) = @_;
673: if (ref($newenv) eq 'HASH') {
674: foreach my $key (keys(%{$newenv})) {
675: my $refused = 0;
676: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
677: $refused = 1;
678: if (ref($roles) eq 'ARRAY') {
1.1250 raeburn 679: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./});
1.949 raeburn 680: if (grep(/^\Q$role\E$/,@{$roles})) {
681: $refused = 0;
682: }
683: }
684: }
685: if ($refused) {
686: &logthis("<font color=\"blue\">WARNING: ".
687: "Attempt to modify environment ".$key." to ".$newenv->{$key}
688: .'</font>');
689: delete($newenv->{$key});
690: } else {
691: $env{$key}=$newenv->{$key};
692: }
693: }
694: my $opened = open(my $env_file,'+<',$env{'user.environment'});
695: if ($opened
696: && &timed_flock($env_file,LOCK_EX)
697: &&
698: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
699: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
700: while (my ($key,$value) = each(%{$newenv})) {
701: $disk_env{$key} = $value;
702: }
703: untie(%disk_env);
1.35 www 704: }
1.191 harris41 705: }
1.56 www 706: return 'ok';
707: }
708: # ----------------------------------------------------- Delete from Environment
709:
710: sub delenv {
1.1104 raeburn 711: my ($delthis,$regexp,$roles) = @_;
712: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
713: my $refused = 1;
714: if (ref($roles) eq 'ARRAY') {
715: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
716: if (grep(/^\Q$role\E$/,@{$roles})) {
717: $refused = 0;
718: }
719: }
720: if ($refused) {
721: &logthis("<font color=\"blue\">WARNING: ".
722: "Attempt to delete from environment ".$delthis);
723: return 'error';
724: }
1.56 www 725: }
1.917 albertel 726: my $opened = open(my $env_file,'+<',$env{'user.environment'});
727: if ($opened
1.915 albertel 728: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 729: &&
730: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
731: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 732: foreach my $key (keys(%disk_env)) {
1.987 raeburn 733: if ($regexp) {
734: if ($key=~/^$delthis/) {
735: delete($env{$key});
736: delete($disk_env{$key});
737: }
738: } else {
739: if ($key=~/^\Q$delthis\E/) {
740: delete($env{$key});
741: delete($disk_env{$key});
742: }
743: }
1.448 albertel 744: }
1.783 albertel 745: untie(%disk_env);
1.5 www 746: }
747: return 'ok';
1.369 albertel 748: }
749:
1.790 albertel 750: sub get_env_multiple {
751: my ($name) = @_;
752: my @values;
753: if (defined($env{$name})) {
754: # exists is it an array
755: if (ref($env{$name})) {
756: @values=@{ $env{$name} };
757: } else {
758: $values[0]=$env{$name};
759: }
760: }
761: return(@values);
762: }
763:
1.958 www 764: # ------------------------------------------------------------------- Locking
765:
766: sub set_lock {
767: my ($text)=@_;
768: $locknum++;
769: my $id=$$.'-'.$locknum;
770: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
771: 'session.lock.'.$id => $text});
772: return $id;
773: }
774:
775: sub get_locks {
776: my $num=0;
777: my %texts=();
778: foreach my $lock (split(/\,/,$env{'session.locks'})) {
779: if ($lock=~/\w/) {
780: $num++;
781: $texts{$lock}=$env{'session.lock.'.$lock};
782: }
783: }
784: return ($num,%texts);
785: }
786:
787: sub remove_lock {
788: my ($id)=@_;
789: my $newlocks='';
790: foreach my $lock (split(/\,/,$env{'session.locks'})) {
791: if (($lock=~/\w/) && ($lock ne $id)) {
792: $newlocks.=','.$lock;
793: }
794: }
795: &appenv({'session.locks' => $newlocks});
796: &delenv('session.lock.'.$id);
797: }
798:
799: sub remove_all_locks {
800: my $activelocks=$env{'session.locks'};
801: foreach my $lock (split(/\,/,$env{'session.locks'})) {
802: if ($lock=~/\w/) {
803: &remove_lock($lock);
804: }
805: }
806: }
807:
808:
1.369 albertel 809: # ------------------------------------------ Find out current server userload
810: sub userload {
811: my $numusers=0;
812: {
813: opendir(LONIDS,$perlvar{'lonIDsDir'});
814: my $filename;
815: my $curtime=time;
816: while ($filename=readdir(LONIDS)) {
1.925 albertel 817: next if ($filename eq '.' || $filename eq '..');
818: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 819: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 820: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 821: }
822: closedir(LONIDS);
823: }
824: my $userloadpercent=0;
825: my $maxuserload=$perlvar{'lonUserLoadLim'};
826: if ($maxuserload) {
1.371 albertel 827: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 828: }
1.372 albertel 829: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 830: return $userloadpercent;
1.283 www 831: }
832:
1.1 albertel 833: # ------------------------------ Find server with least workload from spare.tab
1.11 www 834:
1.1 albertel 835: sub spareserver {
1.1083 raeburn 836: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 837: my $spare_server;
1.370 albertel 838: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 839: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
840: : $userloadpercent;
1.1083 raeburn 841: my ($uint_dom,$remotesessions);
842: if (($udom ne '') && (&domain($udom) ne '')) {
843: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
844: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
845: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
846: $remotesessions = $udomdefaults{'remotesessions'};
847: }
1.1123 raeburn 848: my $spareshash = &this_host_spares($udom);
849: if (ref($spareshash) eq 'HASH') {
850: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
851: foreach my $try_server (@{ $spareshash->{'primary'} }) {
852: if ($uint_dom) {
853: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
854: $try_server));
855: }
856: ($spare_server, $lowest_load) =
857: &compare_server_load($try_server, $spare_server, $lowest_load);
858: }
1.1083 raeburn 859: }
1.784 albertel 860:
1.1123 raeburn 861: my $found_server = ($spare_server ne '' && $lowest_load < 100);
862:
863: if (!$found_server) {
864: if (ref($spareshash->{'default'}) eq 'ARRAY') {
865: foreach my $try_server (@{ $spareshash->{'default'} }) {
866: if ($uint_dom) {
867: next unless (&spare_can_host($udom,$uint_dom,
868: $remotesessions,$try_server));
869: }
870: ($spare_server, $lowest_load) =
871: &compare_server_load($try_server, $spare_server, $lowest_load);
872: }
873: }
874: }
1.784 albertel 875: }
876:
877: if (!$want_server_name) {
1.968 raeburn 878: my $protocol = 'http';
879: if ($protocol{$spare_server} eq 'https') {
880: $protocol = $protocol{$spare_server};
881: }
1.1001 raeburn 882: if (defined($spare_server)) {
883: my $hostname = &hostname($spare_server);
1.1083 raeburn 884: if (defined($hostname)) {
1.1001 raeburn 885: $spare_server = $protocol.'://'.$hostname;
886: }
887: }
1.784 albertel 888: }
889: return $spare_server;
890: }
891:
892: sub compare_server_load {
1.1253 raeburn 893: my ($try_server, $spare_server, $lowest_load, $required) = @_;
894:
895: if ($required) {
896: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
897: my $remoterev = &get_server_loncaparev(undef,$try_server);
898: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
899: if (($major eq '' && $minor eq '') ||
900: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
901: return ($spare_server,$lowest_load);
902: }
903: }
1.784 albertel 904:
905: my $loadans = &reply('load', $try_server);
906: my $userloadans = &reply('userload',$try_server);
907:
908: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 909: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 910: }
911:
912: my $load;
913: if ($loadans =~ /\d/) {
914: if ($userloadans =~ /\d/) {
915: #both are numbers, pick the bigger one
916: $load = ($loadans > $userloadans) ? $loadans
917: : $userloadans;
1.411 albertel 918: } else {
1.784 albertel 919: $load = $loadans;
1.411 albertel 920: }
1.784 albertel 921: } else {
922: $load = $userloadans;
923: }
924:
925: if (($load =~ /\d/) && ($load < $lowest_load)) {
926: $spare_server = $try_server;
927: $lowest_load = $load;
1.370 albertel 928: }
1.784 albertel 929: return ($spare_server,$lowest_load);
1.202 matthew 930: }
1.914 albertel 931:
932: # --------------------------- ask offload servers if user already has a session
933: sub find_existing_session {
934: my ($udom,$uname) = @_;
1.1123 raeburn 935: my $spareshash = &this_host_spares($udom);
936: if (ref($spareshash) eq 'HASH') {
937: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
938: foreach my $try_server (@{ $spareshash->{'primary'} }) {
939: return $try_server if (&has_user_session($try_server, $udom, $uname));
940: }
941: }
942: if (ref($spareshash->{'default'}) eq 'ARRAY') {
943: foreach my $try_server (@{ $spareshash->{'default'} }) {
944: return $try_server if (&has_user_session($try_server, $udom, $uname));
945: }
946: }
1.914 albertel 947: }
948: return;
949: }
950:
951: # -------------------------------- ask if server already has a session for user
952: sub has_user_session {
953: my ($lonid,$udom,$uname) = @_;
954: my $result = &reply(join(':','userhassession',
955: map {&escape($_)} ($udom,$uname)),$lonid);
956: return 1 if ($result eq 'ok');
957:
958: return 0;
959: }
960:
1.1076 raeburn 961: # --------- determine least loaded server in a user's domain which allows login
962:
963: sub choose_server {
1.1259 raeburn 964: my ($udom,$checkloginvia,$required,$skiploadbal) = @_;
1.1076 raeburn 965: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 966: my %servers = &get_servers($udom);
1.1076 raeburn 967: my $lowest_load = 30000;
1.1259 raeburn 968: my ($login_host,$hostname,$portal_path,$isredirect,$balancers);
969: if ($skiploadbal) {
970: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
971: unless (defined($cached)) {
972: my $cachetime = 60*60*24;
973: my %domconfig =
974: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
975: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
976: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
977: $cachetime);
978: }
979: }
980: }
1.1076 raeburn 981: foreach my $lonhost (keys(%servers)) {
1.1259 raeburn 982: if ($skiploadbal) {
983: if (ref($balancers) eq 'HASH') {
984: next if (exists($balancers->{$lonhost}));
985: }
986: }
1.1115 raeburn 987: my $loginvia;
988: if ($checkloginvia) {
989: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 990: if ($loginvia) {
991: my ($server,$path) = split(/:/,$loginvia);
992: ($login_host, $lowest_load) =
1.1253 raeburn 993: &compare_server_load($server, $login_host, $lowest_load, $required);
1.1116 raeburn 994: if ($login_host eq $server) {
995: $portal_path = $path;
1.1151 raeburn 996: $isredirect = 1;
1.1116 raeburn 997: }
998: } else {
999: ($login_host, $lowest_load) =
1.1253 raeburn 1000: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1116 raeburn 1001: if ($login_host eq $lonhost) {
1002: $portal_path = '';
1.1151 raeburn 1003: $isredirect = '';
1.1116 raeburn 1004: }
1005: }
1006: } else {
1.1076 raeburn 1007: ($login_host, $lowest_load) =
1.1253 raeburn 1008: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1076 raeburn 1009: }
1010: }
1011: if ($login_host ne '') {
1.1116 raeburn 1012: $hostname = &hostname($login_host);
1.1076 raeburn 1013: }
1.1151 raeburn 1014: return ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 1015: }
1016:
1.202 matthew 1017: # --------------------------------------------- Try to change a user's password
1018:
1019: sub changepass {
1.799 raeburn 1020: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 1021: $currentpass = &escape($currentpass);
1022: $newpass = &escape($newpass);
1.1030 raeburn 1023: my $lonhost = $perlvar{'lonHostID'};
1024: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 1025: $server);
1026: if (! $answer) {
1027: &logthis("No reply on password change request to $server ".
1028: "by $uname in domain $udom.");
1029: } elsif ($answer =~ "^ok") {
1030: &logthis("$uname in $udom successfully changed their password ".
1031: "on $server.");
1032: } elsif ($answer =~ "^pwchange_failure") {
1033: &logthis("$uname in $udom was unable to change their password ".
1034: "on $server. The action was blocked by either lcpasswd ".
1035: "or pwchange");
1036: } elsif ($answer =~ "^non_authorized") {
1037: &logthis("$uname in $udom did not get their password correct when ".
1038: "attempting to change it on $server.");
1039: } elsif ($answer =~ "^auth_mode_error") {
1040: &logthis("$uname in $udom attempted to change their password despite ".
1041: "not being locally or internally authenticated on $server.");
1042: } elsif ($answer =~ "^unknown_user") {
1043: &logthis("$uname in $udom attempted to change their password ".
1044: "on $server but were unable to because $server is not ".
1045: "their home server.");
1046: } elsif ($answer =~ "^refused") {
1047: &logthis("$server refused to change $uname in $udom password because ".
1048: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1049: } elsif ($answer =~ "invalid_client") {
1050: &logthis("$server refused to change $uname in $udom password because ".
1051: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1052: }
1053: return $answer;
1.1 albertel 1054: }
1055:
1.169 harris41 1056: # ----------------------- Try to determine user's current authentication scheme
1057:
1058: sub queryauthenticate {
1059: my ($uname,$udom)=@_;
1.456 albertel 1060: my $uhome=&homeserver($uname,$udom);
1061: if (!$uhome) {
1062: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1063: return 'no_host';
1064: }
1065: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1066: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1067: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1068: }
1.456 albertel 1069: return $answer;
1.169 harris41 1070: }
1071:
1.1 albertel 1072: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1073:
1.1 albertel 1074: sub authenticate {
1.1073 raeburn 1075: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1076: $upass=&escape($upass);
1077: $uname= &LONCAPA::clean_username($uname);
1.836 www 1078: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1079: my $newhome;
1.836 www 1080: if ((!$uhome) || ($uhome eq 'no_host')) {
1081: # Maybe the machine was offline and only re-appeared again recently?
1082: &reconlonc();
1083: # One more
1.952 raeburn 1084: $uhome=&homeserver($uname,$udom,1);
1085: if (($uhome eq 'no_host') && $checkdefauth) {
1086: if (defined(&domain($udom,'primary'))) {
1087: $newhome=&domain($udom,'primary');
1088: }
1089: if ($newhome ne '') {
1090: $uhome = $newhome;
1091: }
1092: }
1.836 www 1093: if ((!$uhome) || ($uhome eq 'no_host')) {
1094: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1095: return 'no_host';
1096: }
1.1 albertel 1097: }
1.1073 raeburn 1098: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1099: if ($answer eq 'authorized') {
1.952 raeburn 1100: if ($newhome) {
1101: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1102: return 'no_account_on_host';
1103: } else {
1104: &logthis("User $uname at $udom authorized by $uhome");
1105: return $uhome;
1106: }
1.471 albertel 1107: }
1108: if ($answer eq 'non_authorized') {
1109: &logthis("User $uname at $udom rejected by $uhome");
1110: return 'no_host';
1.9 www 1111: }
1.471 albertel 1112: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1113: return 'no_host';
1114: }
1115:
1.1073 raeburn 1116: sub can_host_session {
1.1074 raeburn 1117: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1118: my $canhost = 1;
1.1074 raeburn 1119: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1120: if (ref($remotesessions) eq 'HASH') {
1121: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1122: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1123: $canhost = 0;
1124: } else {
1125: $canhost = 1;
1126: }
1127: }
1128: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1129: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1130: $canhost = 1;
1131: } else {
1132: $canhost = 0;
1133: }
1134: }
1135: if ($canhost) {
1136: if ($remotesessions->{'version'} ne '') {
1137: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1138: if ($reqmajor ne '' && $reqminor ne '') {
1139: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1140: my $major = $1;
1141: my $minor = $2;
1142: if (($major < $reqmajor ) ||
1143: (($major == $reqmajor) && ($minor < $reqminor))) {
1144: $canhost = 0;
1145: }
1146: } else {
1147: $canhost = 0;
1148: }
1149: }
1150: }
1151: }
1152: }
1153: if ($canhost) {
1154: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1155: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1156: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1157: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1158: if (($uint_dom ne '') &&
1159: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1160: $canhost = 0;
1161: } else {
1162: $canhost = 1;
1163: }
1164: }
1165: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1166: if (($uint_dom ne '') &&
1167: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1168: $canhost = 1;
1169: } else {
1170: $canhost = 0;
1171: }
1172: }
1173: }
1174: }
1175: return $canhost;
1176: }
1177:
1.1083 raeburn 1178: sub spare_can_host {
1179: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1180: my $canhost=1;
1181: my @intdoms;
1182: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1183: if (ref($internet_names) eq 'ARRAY') {
1184: @intdoms = @{$internet_names};
1185: }
1186: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1187: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1188: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1189: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1190: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1191: $canhost = &can_host_session($udom,$try_server,$remoterev,
1192: $remotesessions,
1193: $defdomdefaults{'hostedsessions'});
1194: }
1195: return $canhost;
1196: }
1197:
1.1123 raeburn 1198: sub this_host_spares {
1199: my ($dom) = @_;
1.1126 raeburn 1200: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1201: my @hosts = ¤t_machine_ids();
1202: foreach my $lonhost (@hosts) {
1203: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1204: $dom_in_use = $dom;
1205: $lonhost_in_use = $lonhost;
1.1123 raeburn 1206: last;
1207: }
1208: }
1.1126 raeburn 1209: if ($dom_in_use ne '') {
1210: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1211: }
1212: if (ref($result) ne 'HASH') {
1213: $lonhost_in_use = $perlvar{'lonHostID'};
1214: $dom_in_use = &host_domain($lonhost_in_use);
1215: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1216: if (ref($result) ne 'HASH') {
1217: $result = \%spareid;
1218: }
1219: }
1220: return $result;
1221: }
1222:
1223: sub spares_for_offload {
1224: my ($dom_in_use,$lonhost_in_use) = @_;
1225: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1226: if (defined($cached)) {
1227: return $result;
1228: } else {
1.1126 raeburn 1229: my $cachetime = 60*60*24;
1230: my %domconfig =
1231: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1232: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1233: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1234: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1235: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1236: }
1237: }
1238: }
1239: }
1.1126 raeburn 1240: return;
1.1123 raeburn 1241: }
1242:
1.1129 raeburn 1243: sub get_lonbalancer_config {
1244: my ($servers) = @_;
1245: my ($currbalancer,$currtargets);
1246: if (ref($servers) eq 'HASH') {
1247: foreach my $server (keys(%{$servers})) {
1248: my %what = (
1249: spareid => 1,
1250: perlvar => 1,
1251: );
1252: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1253: if ($result eq 'ok') {
1254: if (ref($returnhash) eq 'HASH') {
1255: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1256: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1257: $currbalancer = $server;
1258: $currtargets = {};
1259: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1260: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1261: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1262: }
1263: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1264: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1265: }
1266: }
1267: last;
1268: }
1269: }
1270: }
1271: }
1272: }
1273: }
1274: return ($currbalancer,$currtargets);
1275: }
1276:
1277: sub check_loadbalancing {
1278: my ($uname,$udom) = @_;
1.1191 raeburn 1279: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1280: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1281: my $lonhost = $perlvar{'lonHostID'};
1.1175 raeburn 1282: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1283: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1284: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1285: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1286: my $serverhomedom = &host_domain($lonhost);
1287:
1288: my $cachetime = 60*60*24;
1289:
1290: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1291: $dom_in_use = $udom;
1292: $homeintdom = 1;
1293: } else {
1294: $dom_in_use = $serverhomedom;
1295: }
1296: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1297: unless (defined($cached)) {
1298: my %domconfig =
1299: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1300: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1301: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1302: }
1303: }
1304: if (ref($result) eq 'HASH') {
1.1191 raeburn 1305: ($is_balancer,$currtargets,$currrules) =
1306: &check_balancer_result($result,@hosts);
1.1129 raeburn 1307: if ($is_balancer) {
1308: if (ref($currrules) eq 'HASH') {
1309: if ($homeintdom) {
1310: if ($uname ne '') {
1311: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1312: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1313: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1314: $rule_in_effect = $currrules->{'_LC_author'};
1315: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1316: $rule_in_effect = $currrules->{'_LC_adv'}
1317: }
1318: }
1319: if ($rule_in_effect eq '') {
1320: my %userenv = &userenvironment($udom,$uname,'inststatus');
1321: if ($userenv{'inststatus'} ne '') {
1322: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1323: my ($othertitle,$usertypes,$types) =
1324: &Apache::loncommon::sorted_inst_types($udom);
1325: if (ref($types) eq 'ARRAY') {
1326: foreach my $type (@{$types}) {
1327: if (grep(/^\Q$type\E$/,@statuses)) {
1328: if (exists($currrules->{$type})) {
1329: $rule_in_effect = $currrules->{$type};
1330: }
1331: }
1332: }
1333: }
1334: } else {
1335: if (exists($currrules->{'default'})) {
1336: $rule_in_effect = $currrules->{'default'};
1337: }
1338: }
1339: }
1340: } else {
1341: if (exists($currrules->{'default'})) {
1342: $rule_in_effect = $currrules->{'default'};
1343: }
1344: }
1345: } else {
1346: if ($currrules->{'_LC_external'} ne '') {
1347: $rule_in_effect = $currrules->{'_LC_external'};
1348: }
1349: }
1350: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1351: $uname,$udom);
1352: }
1353: }
1354: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1.1239 raeburn 1355: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1.1129 raeburn 1356: unless (defined($cached)) {
1357: my %domconfig =
1358: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1359: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1360: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1361: }
1362: }
1363: if (ref($result) eq 'HASH') {
1.1191 raeburn 1364: ($is_balancer,$currtargets,$currrules) =
1365: &check_balancer_result($result,@hosts);
1366: if ($is_balancer) {
1.1129 raeburn 1367: if (ref($currrules) eq 'HASH') {
1368: if ($currrules->{'_LC_internetdom'} ne '') {
1369: $rule_in_effect = $currrules->{'_LC_internetdom'};
1370: }
1371: }
1372: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1373: $uname,$udom);
1374: }
1375: } else {
1376: if ($perlvar{'lonBalancer'} eq 'yes') {
1377: $is_balancer = 1;
1378: $offloadto = &this_host_spares($dom_in_use);
1379: }
1380: }
1381: } else {
1382: if ($perlvar{'lonBalancer'} eq 'yes') {
1383: $is_balancer = 1;
1384: $offloadto = &this_host_spares($dom_in_use);
1385: }
1386: }
1.1176 raeburn 1387: if ($is_balancer) {
1388: my $lowest_load = 30000;
1389: if (ref($offloadto) eq 'HASH') {
1390: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1391: foreach my $try_server (@{$offloadto->{'primary'}}) {
1392: ($otherserver,$lowest_load) =
1393: &compare_server_load($try_server,$otherserver,$lowest_load);
1394: }
1.1129 raeburn 1395: }
1.1176 raeburn 1396: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1397:
1.1176 raeburn 1398: if (!$found_server) {
1399: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1400: foreach my $try_server (@{$offloadto->{'default'}}) {
1401: ($otherserver,$lowest_load) =
1402: &compare_server_load($try_server,$otherserver,$lowest_load);
1403: }
1404: }
1405: }
1406: } elsif (ref($offloadto) eq 'ARRAY') {
1407: if (@{$offloadto} == 1) {
1408: $otherserver = $offloadto->[0];
1409: } elsif (@{$offloadto} > 1) {
1410: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1411: ($otherserver,$lowest_load) =
1412: &compare_server_load($try_server,$otherserver,$lowest_load);
1413: }
1414: }
1415: }
1.1176 raeburn 1416: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1417: $is_balancer = 0;
1418: if ($uname ne '' && $udom ne '') {
1419: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1420:
1421: &appenv({'user.loadbalexempt' => $lonhost,
1422: 'user.loadbalcheck.time' => time});
1423: }
1.1129 raeburn 1424: }
1425: }
1426: }
1427: return ($is_balancer,$otherserver);
1428: }
1429:
1.1191 raeburn 1430: sub check_balancer_result {
1431: my ($result,@hosts) = @_;
1432: my ($is_balancer,$currtargets,$currrules);
1433: if (ref($result) eq 'HASH') {
1434: if ($result->{'lonhost'} ne '') {
1435: my $currbalancer = $result->{'lonhost'};
1436: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1437: $is_balancer = 1;
1438: $currtargets = $result->{'targets'};
1439: $currrules = $result->{'rules'};
1440: }
1441: } else {
1442: foreach my $key (keys(%{$result})) {
1443: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1444: (ref($result->{$key}) eq 'HASH')) {
1445: $is_balancer = 1;
1446: $currrules = $result->{$key}{'rules'};
1447: $currtargets = $result->{$key}{'targets'};
1448: last;
1449: }
1450: }
1451: }
1452: }
1453: return ($is_balancer,$currtargets,$currrules);
1454: }
1455:
1.1129 raeburn 1456: sub get_loadbalancer_targets {
1457: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1458: my $offloadto;
1.1175 raeburn 1459: if ($rule_in_effect eq 'none') {
1460: return [$perlvar{'lonHostID'}];
1461: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1462: $offloadto = $currtargets;
1463: } else {
1464: if ($rule_in_effect eq 'homeserver') {
1465: my $homeserver = &homeserver($uname,$udom);
1466: if ($homeserver ne 'no_host') {
1467: $offloadto = [$homeserver];
1468: }
1469: } elsif ($rule_in_effect eq 'externalbalancer') {
1470: my %domconfig =
1471: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1472: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1473: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1474: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1475: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1476: }
1477: }
1478: } else {
1.1178 raeburn 1479: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1480: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1481: if (&hostname($remotebalancer) ne '') {
1482: $offloadto = [$remotebalancer];
1483: }
1484: }
1485: } elsif (&hostname($rule_in_effect) ne '') {
1486: $offloadto = [$rule_in_effect];
1487: }
1488: }
1489: return $offloadto;
1490: }
1491:
1.1127 raeburn 1492: sub internet_dom_servers {
1493: my ($dom) = @_;
1494: my (%uniqservers,%servers);
1495: my $primaryserver = &hostname(&domain($dom,'primary'));
1496: my @machinedoms = &machine_domains($primaryserver);
1497: foreach my $mdom (@machinedoms) {
1498: my %currservers = %servers;
1499: my %server = &get_servers($mdom);
1500: %servers = (%currservers,%server);
1501: }
1502: my %by_hostname;
1503: foreach my $id (keys(%servers)) {
1504: push(@{$by_hostname{$servers{$id}}},$id);
1505: }
1506: foreach my $hostname (sort(keys(%by_hostname))) {
1507: if (@{$by_hostname{$hostname}} > 1) {
1508: my $match = 0;
1509: foreach my $id (@{$by_hostname{$hostname}}) {
1510: if (&host_domain($id) eq $dom) {
1511: $uniqservers{$id} = $hostname;
1512: $match = 1;
1513: }
1514: }
1515: unless ($match) {
1516: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1517: }
1518: } else {
1519: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1520: }
1521: }
1522: return %uniqservers;
1523: }
1524:
1.1 albertel 1525: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1526:
1.599 albertel 1527: my %homecache;
1.1 albertel 1528: sub homeserver {
1.230 stredwic 1529: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1530: my $index="$uname:$udom";
1.426 albertel 1531:
1.599 albertel 1532: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1533:
1534: my %servers = &get_servers($udom,'library');
1535: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1536: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1537: exists($badServerCache{$tryserver}));
1.841 albertel 1538:
1539: my $answer=reply("home:$udom:$uname",$tryserver);
1540: if ($answer eq 'found') {
1541: delete($badServerCache{$tryserver});
1542: return $homecache{$index}=$tryserver;
1543: } elsif ($answer eq 'no_host') {
1544: $badServerCache{$tryserver}=1;
1545: }
1.1 albertel 1546: }
1547: return 'no_host';
1.70 www 1548: }
1549:
1550: # ------------------------------------- Find the usernames behind a list of IDs
1551:
1552: sub idget {
1553: my ($udom,@ids)=@_;
1554: my %returnhash=();
1555:
1.841 albertel 1556: my %servers = &get_servers($udom,'library');
1557: foreach my $tryserver (keys(%servers)) {
1558: my $idlist=join('&',@ids);
1559: $idlist=~tr/A-Z/a-z/;
1560: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1561: my @answer=();
1562: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1563: @answer=split(/\&/,$reply);
1564: } ;
1565: my $i;
1566: for ($i=0;$i<=$#ids;$i++) {
1567: if ($answer[$i]) {
1568: $returnhash{$ids[$i]}=$answer[$i];
1569: }
1570: }
1571: }
1.70 www 1572: return %returnhash;
1573: }
1574:
1575: # ------------------------------------- Find the IDs behind a list of usernames
1576:
1577: sub idrget {
1578: my ($udom,@unames)=@_;
1579: my %returnhash=();
1.800 albertel 1580: foreach my $uname (@unames) {
1581: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1582: }
1.70 www 1583: return %returnhash;
1584: }
1585:
1586: # ------------------------------- Store away a list of names and associated IDs
1587:
1588: sub idput {
1589: my ($udom,%ids)=@_;
1590: my %servers=();
1.800 albertel 1591: foreach my $uname (keys(%ids)) {
1592: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1593: my $uhom=&homeserver($uname,$udom);
1.70 www 1594: if ($uhom ne 'no_host') {
1.800 albertel 1595: my $id=&escape($ids{$uname});
1.70 www 1596: $id=~tr/A-Z/a-z/;
1.800 albertel 1597: my $esc_unam=&escape($uname);
1.70 www 1598: if ($servers{$uhom}) {
1.800 albertel 1599: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1600: } else {
1.800 albertel 1601: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1602: }
1603: }
1.191 harris41 1604: }
1.800 albertel 1605: foreach my $server (keys(%servers)) {
1606: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1607: }
1.344 www 1608: }
1609:
1.1231 raeburn 1610: # ---------------------------------------- Delete unwanted IDs from ids.db file
1611:
1612: sub iddel {
1613: my ($udom,$idshashref,$uhome)=@_;
1614: my %result=();
1615: unless (ref($idshashref) eq 'HASH') {
1616: return %result;
1617: }
1618: my %servers=();
1619: while (my ($id,$uname) = each(%{$idshashref})) {
1620: my $uhom;
1621: if ($uhome) {
1622: $uhom = $uhome;
1623: } else {
1624: $uhom=&homeserver($uname,$udom);
1625: }
1626: if ($uhom ne 'no_host') {
1627: if ($servers{$uhom}) {
1628: $servers{$uhom}.='&'.&escape($id);
1629: } else {
1630: $servers{$uhom}=&escape($id);
1631: }
1632: }
1633: }
1634: foreach my $server (keys(%servers)) {
1635: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
1636: }
1637: return %result;
1638: }
1639:
1.1023 raeburn 1640: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1641: sub dump_dom {
1.1165 droeschl 1642: my ($namespace, $udom, $regexp) = @_;
1643:
1644: $udom ||= $env{'user.domain'};
1645:
1646: return () unless $udom;
1647:
1648: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1649: }
1650:
1.1023 raeburn 1651: # ------------------------------------------ get items from domain db files
1.806 raeburn 1652:
1653: sub get_dom {
1.860 raeburn 1654: my ($namespace,$storearr,$udom,$uhome)=@_;
1.1267 raeburn 1655: return if ($udom eq 'public');
1.806 raeburn 1656: my $items='';
1657: foreach my $item (@$storearr) {
1658: $items.=&escape($item).'&';
1659: }
1660: $items=~s/\&$//;
1.860 raeburn 1661: if (!$udom) {
1662: $udom=$env{'user.domain'};
1.1267 raeburn 1663: return if ($udom eq 'public');
1.860 raeburn 1664: if (defined(&domain($udom,'primary'))) {
1665: $uhome=&domain($udom,'primary');
1666: } else {
1.874 albertel 1667: undef($uhome);
1.860 raeburn 1668: }
1669: } else {
1670: if (!$uhome) {
1671: if (defined(&domain($udom,'primary'))) {
1672: $uhome=&domain($udom,'primary');
1673: }
1674: }
1675: }
1676: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1677: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1678: my %returnhash;
1.875 albertel 1679: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1680: return %returnhash;
1681: }
1.806 raeburn 1682: my @pairs=split(/\&/,$rep);
1683: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1684: return @pairs;
1685: }
1686: my $i=0;
1687: foreach my $item (@$storearr) {
1688: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1689: $i++;
1690: }
1691: return %returnhash;
1692: } else {
1.880 banghart 1693: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1694: }
1695: }
1696:
1697: # -------------------------------------------- put items in domain db files
1698:
1699: sub put_dom {
1.860 raeburn 1700: my ($namespace,$storehash,$udom,$uhome)=@_;
1701: if (!$udom) {
1702: $udom=$env{'user.domain'};
1703: if (defined(&domain($udom,'primary'))) {
1704: $uhome=&domain($udom,'primary');
1705: } else {
1.874 albertel 1706: undef($uhome);
1.860 raeburn 1707: }
1708: } else {
1709: if (!$uhome) {
1710: if (defined(&domain($udom,'primary'))) {
1711: $uhome=&domain($udom,'primary');
1712: }
1713: }
1714: }
1715: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1716: my $items='';
1717: foreach my $item (keys(%$storehash)) {
1718: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1719: }
1720: $items=~s/\&$//;
1721: return &reply("putdom:$udom:$namespace:$items",$uhome);
1722: } else {
1.860 raeburn 1723: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1724: }
1725: }
1726:
1.1023 raeburn 1727: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1728: sub newput_dom {
1.1023 raeburn 1729: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1730: my $result;
1731: if (!$udom) {
1732: $udom=$env{'user.domain'};
1733: }
1.1023 raeburn 1734: if ($udom) {
1735: my $uname = &get_domainconfiguser($udom);
1736: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1737: }
1738: return $result;
1739: }
1740:
1.1023 raeburn 1741: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1742: sub del_dom {
1.1023 raeburn 1743: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1744: if (ref($storearr) eq 'ARRAY') {
1745: if (!$udom) {
1746: $udom=$env{'user.domain'};
1747: }
1.1023 raeburn 1748: if ($udom) {
1749: my $uname = &get_domainconfiguser($udom);
1750: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1751: }
1752: }
1753: }
1754:
1.1023 raeburn 1755: # ----------------------------------construct domainconfig user for a domain
1756: sub get_domainconfiguser {
1757: my ($udom) = @_;
1758: return $udom.'-domainconfig';
1759: }
1760:
1.837 raeburn 1761: sub retrieve_inst_usertypes {
1762: my ($udom) = @_;
1763: my (%returnhash,@order);
1.989 raeburn 1764: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1765: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1766: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1.1256 raeburn 1767: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
1.989 raeburn 1768: } else {
1769: if (defined(&domain($udom,'primary'))) {
1770: my $uhome=&domain($udom,'primary');
1771: my $rep=&reply("inst_usertypes:$udom",$uhome);
1772: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1.1256 raeburn 1773: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
1.989 raeburn 1774: return (\%returnhash,\@order);
1775: }
1776: my ($hashitems,$orderitems) = split(/:/,$rep);
1777: my @pairs=split(/\&/,$hashitems);
1778: foreach my $item (@pairs) {
1779: my ($key,$value)=split(/=/,$item,2);
1780: $key = &unescape($key);
1781: next if ($key =~ /^error: 2 /);
1782: $returnhash{$key}=&thaw_unescape($value);
1783: }
1784: my @esc_order = split(/\&/,$orderitems);
1785: foreach my $item (@esc_order) {
1786: push(@order,&unescape($item));
1787: }
1788: } else {
1.1256 raeburn 1789: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
1.837 raeburn 1790: }
1.1256 raeburn 1791: return (\%returnhash,\@order);
1.837 raeburn 1792: }
1793: }
1794:
1.868 raeburn 1795: sub is_domainimage {
1796: my ($url) = @_;
1797: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1798: if (&domain($1) ne '') {
1799: return '1';
1800: }
1801: }
1802: return;
1803: }
1804:
1.899 raeburn 1805: sub inst_directory_query {
1806: my ($srch) = @_;
1807: my $udom = $srch->{'srchdomain'};
1808: my %results;
1809: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1810: my $outcome;
1.899 raeburn 1811: if ($homeserver ne '') {
1.904 albertel 1812: my $queryid=&reply("querysend:instdirsearch:".
1813: &escape($srch->{'srchby'}).':'.
1814: &escape($srch->{'srchterm'}).':'.
1815: &escape($srch->{'srchtype'}),$homeserver);
1816: my $host=&hostname($homeserver);
1817: if ($queryid !~/^\Q$host\E\_/) {
1818: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1819: return;
1820: }
1821: my $response = &get_query_reply($queryid);
1822: my $maxtries = 5;
1823: my $tries = 1;
1824: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1825: $response = &get_query_reply($queryid);
1826: $tries ++;
1827: }
1828:
1829: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1830: if ($response eq 'unavailable') {
1831: $outcome = $response;
1832: } else {
1833: $outcome = 'ok';
1834: my @matches = split(/\n/,$response);
1835: foreach my $match (@matches) {
1836: my ($key,$value) = split(/=/,$match);
1837: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1838: }
1.899 raeburn 1839: }
1840: }
1841: }
1.909 raeburn 1842: return ($outcome,%results);
1.899 raeburn 1843: }
1844:
1845: sub usersearch {
1846: my ($srch) = @_;
1847: my $dom = $srch->{'srchdomain'};
1848: my %results;
1849: my %libserv = &all_library();
1850: my $query = 'usersearch';
1851: foreach my $tryserver (keys(%libserv)) {
1852: if (&host_domain($tryserver) eq $dom) {
1853: my $host=&hostname($tryserver);
1854: my $queryid=
1.911 raeburn 1855: &reply("querysend:".&escape($query).':'.
1856: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1857: &escape($srch->{'srchtype'}).':'.
1858: &escape($srch->{'srchterm'}),$tryserver);
1859: if ($queryid !~/^\Q$host\E\_/) {
1860: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1861: next;
1.899 raeburn 1862: }
1863: my $reply = &get_query_reply($queryid);
1864: my $maxtries = 1;
1865: my $tries = 1;
1866: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1867: $reply = &get_query_reply($queryid);
1868: $tries ++;
1869: }
1870: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1871: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1872: } else {
1.911 raeburn 1873: my @matches;
1874: if ($reply =~ /\n/) {
1875: @matches = split(/\n/,$reply);
1876: } else {
1877: @matches = split(/\&/,$reply);
1878: }
1.899 raeburn 1879: foreach my $match (@matches) {
1880: my ($uname,$udom,%userhash);
1.911 raeburn 1881: foreach my $entry (split(/:/,$match)) {
1882: my ($key,$value) =
1883: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1884: $userhash{$key} = $value;
1885: if ($key eq 'username') {
1886: $uname = $value;
1887: } elsif ($key eq 'domain') {
1888: $udom = $value;
1.911 raeburn 1889: }
1.899 raeburn 1890: }
1891: $results{$uname.':'.$udom} = \%userhash;
1892: }
1893: }
1894: }
1895: }
1896: return %results;
1897: }
1898:
1.912 raeburn 1899: sub get_instuser {
1900: my ($udom,$uname,$id) = @_;
1901: my $homeserver = &domain($udom,'primary');
1902: my ($outcome,%results);
1903: if ($homeserver ne '') {
1904: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1905: &escape($id).':'.&escape($udom),$homeserver);
1906: my $host=&hostname($homeserver);
1907: if ($queryid !~/^\Q$host\E\_/) {
1908: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1909: return;
1910: }
1911: my $response = &get_query_reply($queryid);
1912: my $maxtries = 5;
1913: my $tries = 1;
1914: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1915: $response = &get_query_reply($queryid);
1916: $tries ++;
1917: }
1918: if (!&error($response) && $response ne 'refused') {
1919: if ($response eq 'unavailable') {
1920: $outcome = $response;
1921: } else {
1922: $outcome = 'ok';
1923: my @matches = split(/\n/,$response);
1924: foreach my $match (@matches) {
1925: my ($key,$value) = split(/=/,$match);
1926: $results{&unescape($key)} = &thaw_unescape($value);
1927: }
1928: }
1929: }
1930: }
1931: my %userinfo;
1932: if (ref($results{$uname}) eq 'HASH') {
1933: %userinfo = %{$results{$uname}};
1934: }
1935: return ($outcome,%userinfo);
1936: }
1937:
1938: sub inst_rulecheck {
1.923 raeburn 1939: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1940: my %returnhash;
1941: if ($udom ne '') {
1942: if (ref($rules) eq 'ARRAY') {
1943: @{$rules} = map {&escape($_);} (@{$rules});
1944: my $rulestr = join(':',@{$rules});
1945: my $homeserver=&domain($udom,'primary');
1946: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1947: my $response;
1948: if ($item eq 'username') {
1949: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1950: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1951: $homeserver));
1.923 raeburn 1952: } elsif ($item eq 'id') {
1953: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1954: ':'.&escape($id).':'.$rulestr,
1955: $homeserver));
1.945 raeburn 1956: } elsif ($item eq 'selfcreate') {
1957: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1958: &escape($udom).':'.&escape($uname).
1959: ':'.$rulestr,$homeserver));
1.923 raeburn 1960: }
1.912 raeburn 1961: if ($response ne 'refused') {
1962: my @pairs=split(/\&/,$response);
1963: foreach my $item (@pairs) {
1964: my ($key,$value)=split(/=/,$item,2);
1965: $key = &unescape($key);
1966: next if ($key =~ /^error: 2 /);
1967: $returnhash{$key}=&thaw_unescape($value);
1968: }
1969: }
1970: }
1971: }
1972: }
1973: return %returnhash;
1974: }
1975:
1976: sub inst_userrules {
1.923 raeburn 1977: my ($udom,$check) = @_;
1.912 raeburn 1978: my (%ruleshash,@ruleorder);
1979: if ($udom ne '') {
1980: my $homeserver=&domain($udom,'primary');
1981: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1982: my $response;
1983: if ($check eq 'id') {
1984: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1985: $homeserver);
1.943 raeburn 1986: } elsif ($check eq 'email') {
1987: $response=&reply('instemailrules:'.&escape($udom),
1988: $homeserver);
1.923 raeburn 1989: } else {
1990: $response=&reply('instuserrules:'.&escape($udom),
1991: $homeserver);
1992: }
1.912 raeburn 1993: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1994: ($response ne 'unknown_cmd') &&
1.912 raeburn 1995: ($response ne 'no_such_host')) {
1996: my ($hashitems,$orderitems) = split(/:/,$response);
1997: my @pairs=split(/\&/,$hashitems);
1998: foreach my $item (@pairs) {
1999: my ($key,$value)=split(/=/,$item,2);
2000: $key = &unescape($key);
2001: next if ($key =~ /^error: 2 /);
2002: $ruleshash{$key}=&thaw_unescape($value);
2003: }
2004: my @esc_order = split(/\&/,$orderitems);
2005: foreach my $item (@esc_order) {
2006: push(@ruleorder,&unescape($item));
2007: }
2008: }
2009: }
2010: }
2011: return (\%ruleshash,\@ruleorder);
2012: }
2013:
1.976 raeburn 2014: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 2015:
2016: sub get_domain_defaults {
1.1240 raeburn 2017: my ($domain,$ignore_cache) = @_;
1.1242 raeburn 2018: return if (($domain eq '') || ($domain eq 'public'));
1.943 raeburn 2019: my $cachetime = 60*60*24;
1.1240 raeburn 2020: unless ($ignore_cache) {
2021: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
2022: if (defined($cached)) {
2023: if (ref($result) eq 'HASH') {
2024: return %{$result};
2025: }
1.943 raeburn 2026: }
2027: }
2028: my %domdefaults;
2029: my %domconfig =
1.989 raeburn 2030: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 2031: 'requestcourses','inststatus',
1.1183 raeburn 2032: 'coursedefaults','usersessions',
1.1258 raeburn 2033: 'requestauthor','selfenrollment',
2034: 'coursecategories'],$domain);
1.1254 raeburn 2035: my @coursetypes = ('official','unofficial','community','textbook');
1.943 raeburn 2036: if (ref($domconfig{'defaults'}) eq 'HASH') {
2037: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2038: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2039: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 2040: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 2041: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 2042: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.943 raeburn 2043: } else {
2044: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2045: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2046: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2047: }
1.976 raeburn 2048: if (ref($domconfig{'quotas'}) eq 'HASH') {
2049: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2050: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2051: } else {
2052: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1.1229 raeburn 2053: }
1.1177 raeburn 2054: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 2055: foreach my $item (@usertools) {
2056: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2057: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2058: }
2059: }
1.1229 raeburn 2060: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2061: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2062: }
1.976 raeburn 2063: }
1.985 raeburn 2064: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1246 raeburn 2065: foreach my $item ('official','unofficial','community','textbook') {
1.985 raeburn 2066: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2067: }
2068: }
1.1183 raeburn 2069: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2070: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2071: }
1.989 raeburn 2072: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1.1256 raeburn 2073: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
1.989 raeburn 2074: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2075: }
2076: }
1.1047 raeburn 2077: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1.1230 raeburn 2078: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
1.1254 raeburn 2079: foreach my $type (@coursetypes) {
2080: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2081: unless ($type eq 'community') {
2082: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2083: }
2084: }
2085: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2086: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2087: }
1.1230 raeburn 2088: }
1.1047 raeburn 2089: }
1.1073 raeburn 2090: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2091: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2092: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2093: }
2094: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2095: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2096: }
2097: }
1.1254 raeburn 2098: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2099: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2100: my @settings = ('types','registered','enroll_dates','access_dates','section',
2101: 'approval','limit');
2102: foreach my $type (@coursetypes) {
2103: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2104: my @mgrdc = ();
2105: foreach my $item (@settings) {
2106: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2107: push(@mgrdc,$item);
2108: }
2109: }
2110: if (@mgrdc) {
2111: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2112: }
2113: }
2114: }
2115: }
2116: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2117: foreach my $type (@coursetypes) {
2118: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2119: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2120: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2121: }
2122: }
2123: }
2124: }
2125: }
1.1258 raeburn 2126: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2127: $domdefaults{'catauth'} = 'std';
2128: $domdefaults{'catunauth'} = 'std';
2129: if ($domconfig{'coursecategories'}{'auth'}) {
2130: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2131: }
2132: if ($domconfig{'coursecategories'}{'unauth'}) {
2133: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2134: }
2135: }
1.1219 raeburn 2136: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
1.943 raeburn 2137: return %domdefaults;
2138: }
2139:
1.344 www 2140: # --------------------------------------------------- Assign a key to a student
2141:
2142: sub assign_access_key {
1.364 www 2143: #
2144: # a valid key looks like uname:udom#comments
2145: # comments are being appended
2146: #
1.498 www 2147: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2148: $kdom=
1.620 albertel 2149: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2150: $knum=
1.620 albertel 2151: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2152: $cdom=
1.620 albertel 2153: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2154: $cnum=
1.620 albertel 2155: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2156: $udom=$env{'user.name'} unless (defined($udom));
2157: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2158: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2159: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2160: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2161: # assigned to this person
2162: # - this should not happen,
1.345 www 2163: # unless something went wrong
2164: # the first time around
2165: # ready to assign
1.364 www 2166: $logentry=$1.'; '.$logentry;
1.496 www 2167: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2168: $kdom,$knum) eq 'ok') {
1.345 www 2169: # key now belongs to user
1.346 www 2170: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2171: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2172: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2173: return 'ok';
2174: } else {
2175: return
2176: 'error: Count not permanently assign key, will need to be re-entered later.';
2177: }
2178: } else {
2179: return 'error: Could not assign key, try again later.';
2180: }
1.364 www 2181: } elsif (!$existing{$ckey}) {
1.345 www 2182: # the key does not exist
2183: return 'error: The key does not exist';
2184: } else {
2185: # the key is somebody else's
2186: return 'error: The key is already in use';
2187: }
1.344 www 2188: }
2189:
1.364 www 2190: # ------------------------------------------ put an additional comment on a key
2191:
2192: sub comment_access_key {
2193: #
2194: # a valid key looks like uname:udom#comments
2195: # comments are being appended
2196: #
2197: my ($ckey,$cdom,$cnum,$logentry)=@_;
2198: $cdom=
1.620 albertel 2199: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2200: $cnum=
1.620 albertel 2201: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2202: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2203: if ($existing{$ckey}) {
2204: $existing{$ckey}.='; '.$logentry;
2205: # ready to assign
1.367 www 2206: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2207: $cdom,$cnum) eq 'ok') {
2208: return 'ok';
2209: } else {
2210: return 'error: Count not store comment.';
2211: }
2212: } else {
2213: # the key does not exist
2214: return 'error: The key does not exist';
2215: }
2216: }
2217:
1.344 www 2218: # ------------------------------------------------------ Generate a set of keys
2219:
2220: sub generate_access_keys {
1.364 www 2221: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2222: $cdom=
1.620 albertel 2223: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2224: $cnum=
1.620 albertel 2225: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2226: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2227: unless (($cdom) && ($cnum)) { return 0; }
2228: if ($number>10000) { return 0; }
2229: sleep(2); # make sure don't get same seed twice
2230: srand(time()^($$+($$<<15))); # from "Programming Perl"
2231: my $total=0;
2232: for (my $i=1;$i<=$number;$i++) {
2233: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2234: sprintf("%lx",int(100000*rand)).'-'.
2235: sprintf("%lx",int(100000*rand));
2236: $newkey=~s/1/g/g; # folks mix up 1 and l
2237: $newkey=~s/0/h/g; # and also 0 and O
2238: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2239: if ($existing{$newkey}) {
2240: $i--;
2241: } else {
1.364 www 2242: if (&put('accesskeys',
2243: { $newkey => '# generated '.localtime().
1.620 albertel 2244: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2245: '; '.$logentry },
2246: $cdom,$cnum) eq 'ok') {
1.344 www 2247: $total++;
2248: }
2249: }
2250: }
1.620 albertel 2251: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2252: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2253: return $total;
2254: }
2255:
2256: # ------------------------------------------------------- Validate an accesskey
2257:
2258: sub validate_access_key {
2259: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2260: $cdom=
1.620 albertel 2261: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2262: $cnum=
1.620 albertel 2263: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2264: $udom=$env{'user.domain'} unless (defined($udom));
2265: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2266: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2267: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2268: }
2269:
2270: # ------------------------------------- Find the section of student in a course
1.652 albertel 2271: sub devalidate_getsection_cache {
2272: my ($udom,$unam,$courseid)=@_;
2273: my $hashid="$udom:$unam:$courseid";
2274: &devalidate_cache_new('getsection',$hashid);
2275: }
1.298 matthew 2276:
1.815 albertel 2277: sub courseid_to_courseurl {
2278: my ($courseid) = @_;
2279: #already url style courseid
2280: return $courseid if ($courseid =~ m{^/});
2281:
2282: if (exists($env{'course.'.$courseid.'.num'})) {
2283: my $cnum = $env{'course.'.$courseid.'.num'};
2284: my $cdom = $env{'course.'.$courseid.'.domain'};
2285: return "/$cdom/$cnum";
2286: }
2287:
2288: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2289: if (exists($courseinfo{'num'})) {
2290: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2291: }
2292:
2293: return undef;
2294: }
2295:
1.298 matthew 2296: sub getsection {
2297: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2298: my $cachetime=1800;
1.551 albertel 2299:
2300: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2301: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2302: if (defined($cached)) { return $result; }
2303:
1.298 matthew 2304: my %Pending;
2305: my %Expired;
2306: #
2307: # Each role can either have not started yet (pending), be active,
2308: # or have expired.
2309: #
2310: # If there is an active role, we are done.
2311: #
2312: # If there is more than one role which has not started yet,
2313: # choose the one which will start sooner
2314: # If there is one role which has not started yet, return it.
2315: #
2316: # If there is more than one expired role, choose the one which ended last.
2317: # If there is a role which has expired, return it.
2318: #
1.815 albertel 2319: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2320: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2321: foreach my $key (keys(%roleshash)) {
1.479 albertel 2322: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2323: my $section=$1;
2324: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2325: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2326: my $now=time;
1.548 albertel 2327: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2328: $Expired{$end}=$section;
2329: next;
2330: }
1.548 albertel 2331: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2332: $Pending{$start}=$section;
2333: next;
2334: }
1.599 albertel 2335: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2336: }
2337: #
2338: # Presumedly there will be few matching roles from the above
2339: # loop and the sorting time will be negligible.
2340: if (scalar(keys(%Pending))) {
2341: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2342: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2343: }
2344: if (scalar(keys(%Expired))) {
2345: my @sorted = sort {$a <=> $b} keys(%Expired);
2346: my $time = pop(@sorted);
1.599 albertel 2347: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2348: }
1.599 albertel 2349: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2350: }
1.70 www 2351:
1.599 albertel 2352: sub save_cache {
2353: &purge_remembered();
1.722 albertel 2354: #&Apache::loncommon::validate_page();
1.620 albertel 2355: undef(%env);
1.780 albertel 2356: undef($env_loaded);
1.599 albertel 2357: }
1.452 albertel 2358:
1.599 albertel 2359: my $to_remember=-1;
2360: my %remembered;
2361: my %accessed;
2362: my $kicks=0;
2363: my $hits=0;
1.849 albertel 2364: sub make_key {
2365: my ($name,$id) = @_;
1.872 albertel 2366: if (length($id) > 65
2367: && length(&escape($id)) > 200) {
2368: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2369: }
1.849 albertel 2370: return &escape($name.':'.$id);
2371: }
2372:
1.599 albertel 2373: sub devalidate_cache_new {
2374: my ($name,$id,$debug) = @_;
2375: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 2376: $id=&make_key($name,$id);
1.599 albertel 2377: $memcache->delete($id);
2378: delete($remembered{$id});
2379: delete($accessed{$id});
2380: }
2381:
2382: sub is_cached_new {
2383: my ($name,$id,$debug) = @_;
1.849 albertel 2384: $id=&make_key($name,$id);
1.599 albertel 2385: if (exists($remembered{$id})) {
1.1133 foxr 2386: if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
1.599 albertel 2387: $accessed{$id}=[&gettimeofday()];
2388: $hits++;
2389: return ($remembered{$id},1);
2390: }
2391: my $value = $memcache->get($id);
2392: if (!(defined($value))) {
2393: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2394: return (undef,undef);
1.416 albertel 2395: }
1.599 albertel 2396: if ($value eq '__undef__') {
2397: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2398: $value=undef;
2399: }
2400: &make_room($id,$value,$debug);
2401: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2402: return ($value,1);
2403: }
2404:
2405: sub do_cache_new {
2406: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 2407: $id=&make_key($name,$id);
1.599 albertel 2408: my $setvalue=$value;
2409: if (!defined($setvalue)) {
2410: $setvalue='__undef__';
2411: }
1.623 albertel 2412: if (!defined($time) ) {
2413: $time=600;
2414: }
1.599 albertel 2415: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2416: my $result = $memcache->set($id,$setvalue,$time);
2417: if (! $result) {
1.872 albertel 2418: &logthis("caching of id -> $id failed");
1.910 albertel 2419: $memcache->disconnect_all();
1.872 albertel 2420: }
1.600 albertel 2421: # need to make a copy of $value
1.919 albertel 2422: &make_room($id,$value,$debug);
1.599 albertel 2423: return $value;
2424: }
2425:
2426: sub make_room {
2427: my ($id,$value,$debug)=@_;
1.919 albertel 2428:
2429: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
2430: : $value;
1.599 albertel 2431: if ($to_remember<0) { return; }
2432: $accessed{$id}=[&gettimeofday()];
2433: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2434: my $to_kick;
2435: my $max_time=0;
2436: foreach my $other (keys(%accessed)) {
2437: if (&tv_interval($accessed{$other}) > $max_time) {
2438: $to_kick=$other;
2439: $max_time=&tv_interval($accessed{$other});
2440: }
2441: }
2442: delete($remembered{$to_kick});
2443: delete($accessed{$to_kick});
2444: $kicks++;
2445: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2446: return;
2447: }
2448:
1.599 albertel 2449: sub purge_remembered {
1.604 albertel 2450: #&logthis("Tossing ".scalar(keys(%remembered)));
2451: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2452: undef(%remembered);
2453: undef(%accessed);
1.428 albertel 2454: }
1.70 www 2455: # ------------------------------------- Read an entry from a user's environment
2456:
2457: sub userenvironment {
2458: my ($udom,$unam,@what)=@_;
1.976 raeburn 2459: my $items;
2460: foreach my $item (@what) {
2461: $items.=&escape($item).'&';
2462: }
2463: $items=~s/\&$//;
1.70 www 2464: my %returnhash=();
1.1009 raeburn 2465: my $uhome = &homeserver($unam,$udom);
2466: unless ($uhome eq 'no_host') {
2467: my @answer=split(/\&/,
2468: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2469: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2470: return %returnhash;
2471: }
1.1009 raeburn 2472: my $i;
2473: for ($i=0;$i<=$#what;$i++) {
2474: $returnhash{$what[$i]}=&unescape($answer[$i]);
2475: }
1.70 www 2476: }
2477: return %returnhash;
1.1 albertel 2478: }
2479:
1.617 albertel 2480: # ---------------------------------------------------------- Get a studentphoto
2481: sub studentphoto {
2482: my ($udom,$unam,$ext) = @_;
2483: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2484: if (defined($env{'request.course.id'})) {
1.708 raeburn 2485: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2486: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2487: return(&retrievestudentphoto($udom,$unam,$ext));
2488: } else {
2489: my ($result,$perm_reqd)=
1.707 albertel 2490: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2491: if ($result eq 'ok') {
2492: if (!($perm_reqd eq 'yes')) {
2493: return(&retrievestudentphoto($udom,$unam,$ext));
2494: }
2495: }
2496: }
2497: }
2498: } else {
2499: my ($result,$perm_reqd) =
1.707 albertel 2500: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2501: if ($result eq 'ok') {
2502: if (!($perm_reqd eq 'yes')) {
2503: return(&retrievestudentphoto($udom,$unam,$ext));
2504: }
2505: }
2506: }
2507: return '/adm/lonKaputt/lonlogo_broken.gif';
2508: }
2509:
2510: sub retrievestudentphoto {
2511: my ($udom,$unam,$ext,$type) = @_;
2512: my $home=&Apache::lonnet::homeserver($unam,$udom);
2513: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2514: if ($ret eq 'ok') {
2515: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2516: if ($type eq 'thumbnail') {
2517: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2518: }
2519: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2520: return $tokenurl;
2521: } else {
2522: if ($type eq 'thumbnail') {
2523: return '/adm/lonKaputt/genericstudent_tn.gif';
2524: } else {
2525: return '/adm/lonKaputt/lonlogo_broken.gif';
2526: }
1.617 albertel 2527: }
2528: }
2529:
1.263 www 2530: # -------------------------------------------------------------------- New chat
2531:
2532: sub chatsend {
1.724 raeburn 2533: my ($newentry,$anon,$group)=@_;
1.620 albertel 2534: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2535: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2536: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2537: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2538: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2539: &escape($newentry)).':'.$group,$chome);
1.292 www 2540: }
2541:
2542: # ------------------------------------------ Find current version of a resource
2543:
2544: sub getversion {
2545: my $fname=&clutter(shift);
1.1189 raeburn 2546: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2547: return ¤tversion(&filelocation('',$fname));
2548: }
2549:
2550: sub currentversion {
2551: my $fname=shift;
2552: my $author=$fname;
2553: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2554: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2555: my $home=&homeserver($uname,$udom);
1.292 www 2556: if ($home eq 'no_host') {
2557: return -1;
2558: }
1.1112 www 2559: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2560: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2561: return -1;
2562: }
1.1112 www 2563: return $answer;
1.263 www 2564: }
2565:
1.1111 www 2566: #
2567: # Return special version number of resource if set by override, empty otherwise
2568: #
2569: sub usedversion {
2570: my $fname=shift;
2571: unless ($fname) { $fname=$env{'request.uri'}; }
2572: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2573: if ($urlversion) { return $urlversion; }
2574: return '';
2575: }
2576:
1.1 albertel 2577: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2578:
1.1 albertel 2579: sub subscribe {
2580: my $fname=shift;
1.761 raeburn 2581: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2582: $fname=~s/[\n\r]//g;
1.1 albertel 2583: my $author=$fname;
2584: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2585: my ($udom,$uname)=split(/\//,$author);
2586: my $home=homeserver($uname,$udom);
1.335 albertel 2587: if ($home eq 'no_host') {
2588: return 'not_found';
1.1 albertel 2589: }
2590: my $answer=reply("sub:$fname",$home);
1.64 www 2591: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2592: $answer.=' by '.$home;
2593: }
1.1 albertel 2594: return $answer;
2595: }
2596:
1.8 www 2597: # -------------------------------------------------------------- Replicate file
2598:
2599: sub repcopy {
2600: my $filename=shift;
1.23 www 2601: $filename=~s/\/+/\//g;
1.1142 raeburn 2602: my $londocroot = $perlvar{'lonDocRoot'};
2603: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2604: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2605: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2606: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2607: return &repcopy_userfile($filename);
2608: }
1.532 albertel 2609: $filename=~s/[\n\r]//g;
1.8 www 2610: my $transname="$filename.in.transfer";
1.828 www 2611: # FIXME: this should flock
1.607 raeburn 2612: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2613: my $remoteurl=subscribe($filename);
1.64 www 2614: if ($remoteurl =~ /^con_lost by/) {
2615: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2616: return 'unavailable';
1.8 www 2617: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2618: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2619: return 'not_found';
1.64 www 2620: } elsif ($remoteurl =~ /^rejected by/) {
2621: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2622: return 'forbidden';
1.20 www 2623: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2624: return 'ok';
1.8 www 2625: } else {
1.290 www 2626: my $author=$filename;
2627: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2628: my ($udom,$uname)=split(/\//,$author);
2629: my $home=homeserver($uname,$udom);
2630: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2631: my @parts=split(/\//,$filename);
2632: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2633: if ($path ne "$londocroot/res") {
1.8 www 2634: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2635: return 'bad_request';
1.8 www 2636: }
2637: my $count;
2638: for ($count=5;$count<$#parts;$count++) {
2639: $path.="/$parts[$count]";
2640: if ((-e $path)!=1) {
2641: mkdir($path,0777);
2642: }
2643: }
2644: my $ua=new LWP::UserAgent;
2645: my $request=new HTTP::Request('GET',"$remoteurl");
2646: my $response=$ua->request($request,$transname);
2647: if ($response->is_error()) {
2648: unlink($transname);
2649: my $message=$response->status_line;
1.672 albertel 2650: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2651: ." LWP get: $message: $filename</font>");
1.607 raeburn 2652: return 'unavailable';
1.8 www 2653: } else {
1.16 www 2654: if ($remoteurl!~/\.meta$/) {
2655: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2656: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2657: if ($mresponse->is_error()) {
2658: unlink($filename.'.meta');
2659: &logthis(
1.672 albertel 2660: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2661: }
2662: }
1.8 www 2663: rename($transname,$filename);
1.607 raeburn 2664: return 'ok';
1.8 www 2665: }
1.290 www 2666: }
1.8 www 2667: }
1.330 www 2668: }
2669:
2670: # ------------------------------------------------ Get server side include body
2671: sub ssi_body {
1.381 albertel 2672: my ($filelink,%form)=@_;
1.606 matthew 2673: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2674: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2675: }
1.953 www 2676: my $output='';
2677: my $response;
1.980 raeburn 2678: if ($filelink=~/^https?\:/) {
1.954 raeburn 2679: ($output,$response)=&externalssi($filelink);
1.953 www 2680: } else {
1.1004 droeschl 2681: $filelink .= $filelink=~/\?/ ? '&' : '?';
2682: $filelink .= 'inhibitmenu=yes';
1.953 www 2683: ($output,$response)=&ssi($filelink,%form);
2684: }
1.778 albertel 2685: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2686: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2687: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2688: if (wantarray) {
2689: return ($output, $response);
2690: } else {
2691: return $output;
2692: }
1.8 www 2693: }
2694:
1.15 www 2695: # --------------------------------------------------------- Server Side Include
2696:
1.782 albertel 2697: sub absolute_url {
2698: my ($host_name) = @_;
2699: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2700: if ($host_name eq '') {
2701: $host_name = $ENV{'SERVER_NAME'};
2702: }
2703: return $protocol.$host_name;
2704: }
2705:
1.942 foxr 2706: #
2707: # Server side include.
2708: # Parameters:
2709: # fn Possibly encrypted resource name/id.
2710: # form Hash that describes how the rendering should be done
2711: # and other things.
1.944 foxr 2712: # Returns:
1.950 raeburn 2713: # Scalar context: The content of the response.
2714: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2715: #
1.15 www 2716: sub ssi {
2717:
1.944 foxr 2718: my ($fn,%form)=@_;
1.15 www 2719: my $ua=new LWP::UserAgent;
1.23 www 2720: my $request;
1.711 albertel 2721:
2722: $form{'no_update_last_known'}=1;
1.895 albertel 2723: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2724: if (%form) {
1.782 albertel 2725: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1272 droeschl 2726: $request->content(join('&',map {
2727: my $name = escape($_);
2728: "$name=" . ( ref($form{$_}) eq 'ARRAY'
2729: ? join("&$name=", map {escape($_) } @{$form{$_}})
2730: : &escape($form{$_}) );
2731: } keys(%form)));
1.23 www 2732: } else {
1.782 albertel 2733: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2734: }
2735:
1.15 www 2736: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1173 foxr 2737: my $response= $ua->request($request);
1.1182 foxr 2738: my $content = $response->content;
2739:
2740:
1.944 foxr 2741: if (wantarray) {
1.1173 foxr 2742: return ($content, $response);
1.944 foxr 2743: } else {
1.1173 foxr 2744: return $content;
1.942 foxr 2745: }
1.324 www 2746: }
2747:
2748: sub externalssi {
2749: my ($url)=@_;
2750: my $ua=new LWP::UserAgent;
2751: my $request=new HTTP::Request('GET',$url);
2752: my $response=$ua->request($request);
1.954 raeburn 2753: if (wantarray) {
2754: return ($response->content, $response);
2755: } else {
2756: return $response->content;
2757: }
1.15 www 2758: }
1.254 www 2759:
1.492 albertel 2760: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2761:
2762: sub allowuploaded {
2763: my ($srcurl,$url)=@_;
2764: $url=&clutter(&declutter($url));
2765: my $dir=$url;
2766: $dir=~s/\/[^\/]+$//;
2767: my %httpref=();
2768: my $httpurl=&hreflocation('',$url);
2769: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2770: &Apache::lonnet::appenv(\%httpref);
1.254 www 2771: }
1.477 raeburn 2772:
1.1193 raeburn 2773: #
2774: # Determine if the current user should be able to edit a particular resource,
2775: # when viewing in course context.
2776: # (a) When viewing resource used to determine if "Edit" item is included in
2777: # Functions.
2778: # (b) When displaying folder contents in course editor, used to determine if
2779: # "Edit" link will be displayed alongside resource.
2780: #
1.1196 raeburn 2781: # input: six args -- filename (decluttered), course number, course domain,
2782: # url, symb (if registered) and group (if this is a group
2783: # item -- e.g., bulletin board, group page etc.).
2784: # output: array of five scalars --
1.1193 raeburn 2785: # $cfile -- url for file editing if editable on current server
2786: # $home -- homeserver of resource (i.e., for author if published,
2787: # or course if uploaded.).
2788: # $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 2789: # $forceedit -- 1 if icon/link should be to go to edit mode
2790: # $forceview -- 1 if icon/link should be to go to view mode
1.1193 raeburn 2791: #
2792:
2793: sub can_edit_resource {
1.1194 raeburn 2794: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
2795: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
2796: #
2797: # For aboutme pages user can only edit his/her own.
2798: #
1.1199 raeburn 2799: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
1.1194 raeburn 2800: my ($sdom,$sname) = ($1,$2);
2801: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
2802: $home = $env{'user.home'};
2803: $cfile = $resurl;
2804: if ($env{'form.forceedit'}) {
2805: $forceview = 1;
2806: } else {
2807: $forceedit = 1;
2808: }
2809: return ($cfile,$home,$switchserver,$forceedit,$forceview);
2810: } else {
2811: return;
2812: }
2813: }
2814:
2815: if ($env{'request.course.id'}) {
2816: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
2817: if ($group ne '') {
2818: # if this is a group homepage or group bulletin board, check group privs
2819: my $allowed = 0;
1.1197 raeburn 2820: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
2821: if ((&allowed('mdg',$env{'request.course.id'}.
1.1198 raeburn 2822: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
1.1194 raeburn 2823: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
2824: $allowed = 1;
2825: }
1.1197 raeburn 2826: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
2827: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
2828: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
1.1194 raeburn 2829: $allowed = 1;
2830: }
2831: }
2832: if ($allowed) {
2833: $home=&homeserver($cnum,$cdom);
2834: if ($env{'form.forceedit'}) {
2835: $forceview = 1;
2836: } else {
2837: $forceedit = 1;
2838: }
2839: $cfile = $resurl;
2840: } else {
2841: return;
2842: }
2843: } else {
1.1208 raeburn 2844: if ($resurl =~ m{^/?adm/viewclasslist$}) {
2845: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
2846: return;
2847: }
2848: } elsif (!$crsedit) {
1.1194 raeburn 2849: #
2850: # No edit allowed where CC has switched to student role.
2851: #
2852: return;
2853: }
2854: }
2855: }
2856:
1.1193 raeburn 2857: if ($file ne '') {
2858: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
1.1194 raeburn 2859: if (&is_course_upload($file,$cnum,$cdom)) {
2860: $uploaded = 1;
2861: $incourse = 1;
1.1193 raeburn 2862: if ($file =~/\.(htm|html|css|js|txt)$/) {
2863: $cfile = &hreflocation('',$file);
1.1201 raeburn 2864: if ($env{'form.forceedit'}) {
2865: $forceview = 1;
2866: } else {
2867: $forceedit = 1;
2868: }
1.1194 raeburn 2869: }
2870: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
2871: $incourse = 1;
2872: if ($env{'form.forceedit'}) {
2873: $forceview = 1;
2874: } else {
2875: $forceedit = 1;
2876: }
2877: $cfile = $resurl;
2878: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
2879: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
2880: $incourse = 1;
2881: if ($env{'form.forceedit'}) {
2882: $forceview = 1;
2883: } else {
2884: $forceedit = 1;
2885: }
2886: $cfile = $resurl;
1.1199 raeburn 2887: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
1.1194 raeburn 2888: $incourse = 1;
2889: $cfile = $resurl.'/smpedit';
1.1199 raeburn 2890: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
1.1194 raeburn 2891: $incourse = 1;
1.1199 raeburn 2892: if ($env{'form.forceedit'}) {
2893: $forceview = 1;
2894: } else {
2895: $forceedit = 1;
2896: }
2897: $cfile = $resurl;
1.1208 raeburn 2898: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
2899: $incourse = 1;
2900: if ($env{'form.forceedit'}) {
2901: $forceview = 1;
2902: } else {
2903: $forceedit = 1;
2904: }
2905: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1194 raeburn 2906: }
2907: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
2908: my $template = '/res/lib/templates/simpleproblem.problem';
2909: if (&is_on_map($template)) {
2910: $incourse = 1;
2911: $forceview = 1;
2912: $cfile = $template;
1.1193 raeburn 2913: }
1.1199 raeburn 2914: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
2915: $incourse = 1;
2916: if ($env{'form.forceedit'}) {
2917: $forceview = 1;
2918: } else {
2919: $forceedit = 1;
2920: }
2921: $cfile = $resurl;
2922: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
2923: $incourse = 1;
2924: $forceview = 1;
2925: if ($symb) {
2926: my ($map,$id,$res)=&decode_symb($symb);
2927: $env{'request.symb'} = $symb;
2928: $cfile = &clutter($res);
2929: } else {
2930: $cfile = $env{'form.suppurl'};
2931: $cfile =~ s{^http://}{};
2932: $cfile = '/adm/wrapper/ext/'.$cfile;
2933: }
1.1234 raeburn 2934: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
2935: if ($env{'form.forceedit'}) {
2936: $forceview = 1;
2937: } else {
2938: $forceedit = 1;
2939: }
2940: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1193 raeburn 2941: }
2942: }
1.1194 raeburn 2943: if ($uploaded || $incourse) {
2944: $home=&homeserver($cnum,$cdom);
1.1207 raeburn 2945: } elsif ($file !~ m{/$}) {
1.1193 raeburn 2946: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
2947: $file=~s{^($match_domain/$match_username)}{/priv/$1};
2948: # Check that the user has permission to edit this resource
2949: my $setpriv = 1;
2950: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
2951: if (defined($cfudom)) {
2952: $home=&homeserver($cfuname,$cfudom);
2953: $cfile=$file;
2954: }
2955: }
1.1194 raeburn 2956: if (($cfile ne '') && (!$incourse || $uploaded) &&
2957: (($home ne '') && ($home ne 'no_host'))) {
1.1193 raeburn 2958: my @ids=¤t_machine_ids();
2959: unless (grep(/^\Q$home\E$/,@ids)) {
2960: $switchserver=1;
2961: }
2962: }
2963: }
1.1194 raeburn 2964: return ($cfile,$home,$switchserver,$forceedit,$forceview);
1.1193 raeburn 2965: }
2966:
2967: sub is_course_upload {
2968: my ($file,$cnum,$cdom) = @_;
2969: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
2970: $uploadpath =~ s{^\/}{};
1.1201 raeburn 2971: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
2972: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
1.1193 raeburn 2973: return 1;
2974: }
2975: return;
2976: }
2977:
1.1194 raeburn 2978: sub in_course {
1.1195 raeburn 2979: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
2980: if ($hideprivileged) {
2981: my $skipuser;
1.1219 raeburn 2982: my %coursehash = &coursedescription($cdom.'_'.$cnum);
2983: my @possdoms = ($cdom);
2984: if ($coursehash{'checkforpriv'}) {
2985: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
2986: }
2987: if (&privileged($uname,$udom,\@possdoms)) {
1.1195 raeburn 2988: $skipuser = 1;
2989: if ($coursehash{'nothideprivileged'}) {
2990: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2991: my $user;
2992: if ($item =~ /:/) {
2993: $user = $item;
2994: } else {
2995: $user = join(':',split(/[\@]/,$item));
2996: }
2997: if ($user eq $uname.':'.$udom) {
2998: undef($skipuser);
2999: last;
3000: }
3001: }
3002: }
3003: if ($skipuser) {
3004: return 0;
3005: }
3006: }
3007: }
1.1194 raeburn 3008: $type ||= 'any';
3009: if (!defined($cdom) || !defined($cnum)) {
3010: my $cid = $env{'request.course.id'};
3011: $cdom = $env{'course.'.$cid.'.domain'};
3012: $cnum = $env{'course.'.$cid.'.num'};
3013: }
3014: my $typesref;
1.1195 raeburn 3015: if (($type eq 'any') || ($type eq 'all')) {
1.1194 raeburn 3016: $typesref = ['active','previous','future'];
3017: } elsif ($type eq 'previous' || $type eq 'future') {
3018: $typesref = [$type];
3019: }
3020: my %roles = &get_my_roles($uname,$udom,'userroles',
3021: $typesref,undef,[$cdom]);
3022: my ($tmp) = keys(%roles);
3023: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
3024: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
3025: if (@course_roles > 0) {
3026: return 1;
3027: }
3028: return 0;
3029: }
3030:
1.478 albertel 3031: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 3032: # input: action, courseID, current domain, intended
1.637 raeburn 3033: # path to file, source of file, instruction to parse file for objects,
3034: # ref to hash for embedded objects,
3035: # ref to hash for codebase of java objects.
1.1095 raeburn 3036: # reference to scalar to accommodate mime type determined
3037: # from File::MMagic if $parser = parse.
1.637 raeburn 3038: #
1.485 raeburn 3039: # output: url to file (if action was uploaddoc),
3040: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 3041: #
1.478 albertel 3042: # Allows directory structure to be used within lonUsers/../userfiles/ for a
3043: # course.
1.477 raeburn 3044: #
1.478 albertel 3045: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3046: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
3047: # course's home server.
1.477 raeburn 3048: #
1.478 albertel 3049: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
3050: # be copied from $source (current location) to
3051: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3052: # and will then be copied to
3053: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
3054: # course's home server.
1.485 raeburn 3055: #
1.481 raeburn 3056: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 3057: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 3058: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3059: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
3060: # in course's home server.
1.637 raeburn 3061: #
1.477 raeburn 3062:
3063: sub process_coursefile {
1.1095 raeburn 3064: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
3065: $mimetype)=@_;
1.477 raeburn 3066: my $fetchresult;
1.638 albertel 3067: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 3068: if ($action eq 'propagate') {
1.638 albertel 3069: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
3070: $home);
1.481 raeburn 3071: } else {
1.477 raeburn 3072: my $fpath = '';
3073: my $fname = $file;
1.478 albertel 3074: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 3075: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 3076: my $filepath = &build_filepath($fpath);
1.481 raeburn 3077: if ($action eq 'copy') {
3078: if ($source eq '') {
3079: $fetchresult = 'no source file';
3080: return $fetchresult;
3081: } else {
3082: my $destination = $filepath.'/'.$fname;
3083: rename($source,$destination);
3084: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3085: $home);
1.481 raeburn 3086: }
3087: } elsif ($action eq 'uploaddoc') {
3088: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 3089: print $fh $env{'form.'.$source};
1.481 raeburn 3090: close($fh);
1.637 raeburn 3091: if ($parser eq 'parse') {
1.1024 raeburn 3092: my $mm = new File::MMagic;
1.1095 raeburn 3093: my $type = $mm->checktype_filename($filepath.'/'.$fname);
3094: if ($type eq 'text/html') {
1.1024 raeburn 3095: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
3096: unless ($parse_result eq 'ok') {
3097: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
3098: }
1.637 raeburn 3099: }
1.1095 raeburn 3100: if (ref($mimetype)) {
3101: $$mimetype = $type;
3102: }
1.637 raeburn 3103: }
1.477 raeburn 3104: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3105: $home);
1.481 raeburn 3106: if ($fetchresult eq 'ok') {
3107: return '/uploaded/'.$fpath.'/'.$fname;
3108: } else {
3109: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3110: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 3111: return '/adm/notfound.html';
3112: }
1.477 raeburn 3113: }
3114: }
1.485 raeburn 3115: unless ( $fetchresult eq 'ok') {
1.477 raeburn 3116: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3117: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 3118: }
3119: return $fetchresult;
3120: }
3121:
1.637 raeburn 3122: sub build_filepath {
3123: my ($fpath) = @_;
3124: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
3125: unless ($fpath eq '') {
3126: my @parts=split('/',$fpath);
3127: foreach my $part (@parts) {
3128: $filepath.= '/'.$part;
3129: if ((-e $filepath)!=1) {
3130: mkdir($filepath,0777);
3131: }
3132: }
3133: }
3134: return $filepath;
3135: }
3136:
3137: sub store_edited_file {
1.638 albertel 3138: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 3139: my $file = $primary_url;
3140: $file =~ s#^/uploaded/$docudom/$docuname/##;
3141: my $fpath = '';
3142: my $fname = $file;
3143: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3144: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3145: my $filepath = &build_filepath($fpath);
3146: open(my $fh,'>'.$filepath.'/'.$fname);
3147: print $fh $content;
3148: close($fh);
1.638 albertel 3149: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3150: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3151: $home);
1.637 raeburn 3152: if ($$fetchresult eq 'ok') {
3153: return '/uploaded/'.$fpath.'/'.$fname;
3154: } else {
1.638 albertel 3155: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3156: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3157: return '/adm/notfound.html';
3158: }
3159: }
3160:
1.531 albertel 3161: sub clean_filename {
1.831 albertel 3162: my ($fname,$args)=@_;
1.315 www 3163: # Replace Windows backslashes by forward slashes
1.257 www 3164: $fname=~s/\\/\//g;
1.831 albertel 3165: if (!$args->{'keep_path'}) {
3166: # Get rid of everything but the actual filename
3167: $fname=~s/^.*\/([^\/]+)$/$1/;
3168: }
1.315 www 3169: # Replace spaces by underscores
3170: $fname=~s/\s+/\_/g;
3171: # Replace all other weird characters by nothing
1.831 albertel 3172: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3173: # Replace all .\d. sequences with _\d. so they no longer look like version
3174: # numbers
3175: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3176: return $fname;
3177: }
1.1051 raeburn 3178: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3179: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3180: # image with the same aspect ratio as the original, but with dimensions which do
3181: # not exceed $resizewidth and $resizeheight.
3182:
1.984 neumanie 3183: sub resizeImage {
1.1051 raeburn 3184: my ($img_path,$resizewidth,$resizeheight) = @_;
3185: my $ima = Image::Magick->new;
3186: my $resized;
3187: if (-e $img_path) {
3188: $ima->Read($img_path);
3189: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3190: my $width = $ima->Get('width');
3191: my $height = $ima->Get('height');
3192: if ($width > $resizewidth) {
3193: my $factor = $width/$resizewidth;
3194: my $newheight = $height/$factor;
3195: $ima->Scale(width=>$resizewidth,height=>$newheight);
3196: $resized = 1;
3197: }
3198: }
3199: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3200: my $width = $ima->Get('width');
3201: my $height = $ima->Get('height');
3202: if ($height > $resizeheight) {
3203: my $factor = $height/$resizeheight;
3204: my $newwidth = $width/$factor;
3205: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3206: $resized = 1;
3207: }
3208: }
3209: if ($resized) {
3210: $ima->Write($img_path);
3211: }
3212: }
3213: return;
1.977 amueller 3214: }
3215:
1.608 albertel 3216: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3217: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3218: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3219: # $context - possible values: coursedoc, existingfile, overwrite,
3220: # canceloverwrite, or ''.
3221: # if 'coursedoc': upload to the current course
3222: # if 'existingfile': write file to tmp/overwrites directory
3223: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3224: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3225: # $subdir - directory in userfile to store the file into
1.858 raeburn 3226: # $parser - instruction to parse file for objects ($parser = parse)
3227: # $allfiles - reference to hash for embedded objects
3228: # $codebase - reference to hash for codebase of java objects
3229: # $desuname - username for permanent storage of uploaded file
3230: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3231: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3232: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3233: # $resizewidth - width (pixels) to which to resize uploaded image
3234: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3235: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3236: # from File::MMagic.
1.858 raeburn 3237: #
1.686 albertel 3238: # output: url of file in userspace, or error: <message>
3239: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3240:
1.531 albertel 3241: sub userfileupload {
1.1090 raeburn 3242: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3243: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3244: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3245: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3246: $fname=&clean_filename($fname);
1.1090 raeburn 3247: # See if there is anything left
1.257 www 3248: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3249: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3250: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3251: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3252: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3253: my $now = time;
1.1090 raeburn 3254: my $filepath;
1.1095 raeburn 3255: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3256: $filepath = 'tmp/helprequests/'.$now;
3257: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3258: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3259: '_'.$env{'user.domain'}.'/pending';
3260: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3261: my ($docuname,$docudom);
3262: if ($destudom) {
3263: $docudom = $destudom;
3264: } else {
3265: $docudom = $env{'user.domain'};
3266: }
3267: if ($destuname) {
3268: $docuname = $destuname;
3269: } else {
3270: $docuname = $env{'user.name'};
3271: }
3272: if (exists($env{'form.group'})) {
3273: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3274: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3275: }
3276: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3277: if ($context eq 'canceloverwrite') {
3278: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3279: if (-e $tempfile) {
3280: my @info = stat($tempfile);
3281: if ($info[9] eq $env{'form.timestamp'}) {
3282: unlink($tempfile);
3283: }
3284: }
3285: return;
1.523 raeburn 3286: }
3287: }
1.1090 raeburn 3288: # Create the directory if not present
1.741 raeburn 3289: my @parts=split(/\//,$filepath);
3290: my $fullpath = $perlvar{'lonDaemons'};
3291: for (my $i=0;$i<@parts;$i++) {
3292: $fullpath .= '/'.$parts[$i];
3293: if ((-e $fullpath)!=1) {
3294: mkdir($fullpath,0777);
3295: }
3296: }
3297: open(my $fh,'>'.$fullpath.'/'.$fname);
3298: print $fh $env{'form.'.$formname};
3299: close($fh);
1.1090 raeburn 3300: if ($context eq 'existingfile') {
3301: my @info = stat($fullpath.'/'.$fname);
3302: return ($fullpath.'/'.$fname,$info[9]);
3303: } else {
3304: return $fullpath.'/'.$fname;
3305: }
1.523 raeburn 3306: }
1.995 raeburn 3307: if ($subdir eq 'scantron') {
3308: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3309: } else {
1.995 raeburn 3310: $fname="$subdir/$fname";
3311: }
1.1090 raeburn 3312: if ($context eq 'coursedoc') {
1.638 albertel 3313: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3314: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3315: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3316: return &finishuserfileupload($docuname,$docudom,
3317: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3318: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3319: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3320: } else {
1.1218 raeburn 3321: if ($env{'form.folder'}) {
3322: $fname=$env{'form.folder'}.'/'.$fname;
3323: }
1.638 albertel 3324: return &process_coursefile('uploaddoc',$docuname,$docudom,
3325: $fname,$formname,$parser,
1.1095 raeburn 3326: $allfiles,$codebase,$mimetype);
1.481 raeburn 3327: }
1.719 banghart 3328: } elsif (defined($destuname)) {
3329: my $docuname=$destuname;
3330: my $docudom=$destudom;
1.860 raeburn 3331: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3332: $parser,$allfiles,$codebase,
1.1051 raeburn 3333: $thumbwidth,$thumbheight,
1.1095 raeburn 3334: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3335: } else {
1.638 albertel 3336: my $docuname=$env{'user.name'};
3337: my $docudom=$env{'user.domain'};
1.1220 raeburn 3338: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
1.714 raeburn 3339: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3340: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3341: }
1.860 raeburn 3342: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3343: $parser,$allfiles,$codebase,
1.1051 raeburn 3344: $thumbwidth,$thumbheight,
1.1095 raeburn 3345: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3346: }
1.271 www 3347: }
3348:
3349: sub finishuserfileupload {
1.860 raeburn 3350: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3351: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3352: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3353: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3354:
1.860 raeburn 3355: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3356: $file=$fname;
3357: if ($fname=~m|/|) {
3358: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3359: $path.=$fnamepath.'/';
3360: }
1.259 www 3361: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3362: my $count;
3363: for ($count=4;$count<=$#parts;$count++) {
3364: $filepath.="/$parts[$count]";
3365: if ((-e $filepath)!=1) {
3366: mkdir($filepath,0777);
3367: }
3368: }
1.984 neumanie 3369:
1.258 www 3370: # Save the file
3371: {
1.701 albertel 3372: if (!open(FH,'>'.$filepath.'/'.$file)) {
3373: &logthis('Failed to create '.$filepath.'/'.$file);
3374: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3375: return '/adm/notfound.html';
3376: }
1.1090 raeburn 3377: if ($context eq 'overwrite') {
1.1117 foxr 3378: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3379: my $target = $filepath.'/'.$file;
3380: if (-e $source) {
3381: my @info = stat($source);
3382: if ($info[9] eq $env{'form.timestamp'}) {
3383: unless (&File::Copy::move($source,$target)) {
3384: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3385: return "Moving from $source failed";
3386: }
3387: } else {
3388: return "Temporary file: $source had unexpected date/time for last modification";
3389: }
3390: } else {
3391: return "Temporary file: $source missing";
3392: }
3393: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3394: &logthis('Failed to write to '.$filepath.'/'.$file);
3395: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3396: return '/adm/notfound.html';
3397: }
1.570 albertel 3398: close(FH);
1.1051 raeburn 3399: if ($resizewidth && $resizeheight) {
3400: my $mm = new File::MMagic;
3401: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3402: if ($mime_type =~ m{^image/}) {
3403: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3404: }
1.977 amueller 3405: }
1.258 www 3406: }
1.1152 raeburn 3407: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3408: if (ref($mimetype)) {
3409: if ($$mimetype eq '') {
3410: my $mm = new File::MMagic;
3411: my $type = $mm->checktype_filename($filepath.'/'.$file);
3412: $$mimetype = $type;
3413: }
3414: }
3415: }
1.637 raeburn 3416: if ($parser eq 'parse') {
1.1152 raeburn 3417: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3418: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3419: $allfiles,$codebase);
3420: unless ($parse_result eq 'ok') {
3421: &logthis('Failed to parse '.$filepath.$file.
3422: ' for embedded media: '.$parse_result);
3423: }
1.637 raeburn 3424: }
3425: }
1.860 raeburn 3426: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3427: my $input = $filepath.'/'.$file;
3428: my $output = $filepath.'/'.'tn-'.$file;
3429: my $thumbsize = $thumbwidth.'x'.$thumbheight;
3430: system("convert -sample $thumbsize $input $output");
3431: if (-e $filepath.'/'.'tn-'.$file) {
3432: $fetchthumb = 1;
3433: }
3434: }
1.858 raeburn 3435:
1.259 www 3436: # Notify homeserver to grep it
3437: #
1.984 neumanie 3438: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3439: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3440: if ($fetchresult eq 'ok') {
1.860 raeburn 3441: if ($fetchthumb) {
3442: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3443: if ($thumbresult ne 'ok') {
3444: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3445: $docuhome.': '.$thumbresult);
3446: }
3447: }
1.259 www 3448: #
1.258 www 3449: # Return the URL to it
1.494 albertel 3450: return '/uploaded/'.$path.$file;
1.263 www 3451: } else {
1.494 albertel 3452: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3453: ': '.$fetchresult);
1.263 www 3454: return '/adm/notfound.html';
1.858 raeburn 3455: }
1.493 albertel 3456: }
3457:
1.637 raeburn 3458: sub extract_embedded_items {
1.961 raeburn 3459: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3460: my @state = ();
1.1164 raeburn 3461: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3462: my %javafiles = (
3463: codebase => '',
3464: code => '',
3465: archive => ''
3466: );
3467: my %mediafiles = (
3468: src => '',
3469: movie => '',
3470: );
1.648 raeburn 3471: my $p;
3472: if ($content) {
3473: $p = HTML::LCParser->new($content);
3474: } else {
1.961 raeburn 3475: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3476: }
1.641 albertel 3477: while (my $t=$p->get_token()) {
1.640 albertel 3478: if ($t->[0] eq 'S') {
3479: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3480: push(@state, $tagname);
1.648 raeburn 3481: if (lc($tagname) eq 'allow') {
3482: &add_filetype($allfiles,$attr->{'src'},'src');
3483: }
1.640 albertel 3484: if (lc($tagname) eq 'img') {
3485: &add_filetype($allfiles,$attr->{'src'},'src');
3486: }
1.886 albertel 3487: if (lc($tagname) eq 'a') {
1.1222 raeburn 3488: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
1.1221 raeburn 3489: &add_filetype($allfiles,$attr->{'href'},'href');
3490: }
1.886 albertel 3491: }
1.645 raeburn 3492: if (lc($tagname) eq 'script') {
1.1164 raeburn 3493: my $src;
1.645 raeburn 3494: if ($attr->{'archive'} =~ /\.jar$/i) {
3495: &add_filetype($allfiles,$attr->{'archive'},'archive');
3496: } else {
1.1164 raeburn 3497: if ($attr->{'src'} ne '') {
3498: $src = $attr->{'src'};
3499: &add_filetype($allfiles,$src,'src');
3500: }
3501: }
3502: my $text = $p->get_trimmed_text();
3503: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3504: my @swfargs = split(/,/,$1);
3505: foreach my $item (@swfargs) {
3506: $item =~ s/["']//g;
3507: $item =~ s/^\s+//;
3508: $item =~ s/\s+$//;
3509: }
3510: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3511: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3512: push(@{$related{$swfargs[0]}},$swfargs[2]);
3513: } else {
3514: $related{$swfargs[0]} = [$swfargs[2]];
3515: }
3516: }
1.645 raeburn 3517: }
3518: }
3519: if (lc($tagname) eq 'link') {
3520: if (lc($attr->{'rel'}) eq 'stylesheet') {
3521: &add_filetype($allfiles,$attr->{'href'},'href');
3522: }
3523: }
1.640 albertel 3524: if (lc($tagname) eq 'object' ||
3525: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3526: foreach my $item (keys(%javafiles)) {
3527: $javafiles{$item} = '';
3528: }
1.1164 raeburn 3529: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3530: $lastids{lc($tagname)} = $attr->{'id'};
3531: }
1.640 albertel 3532: }
3533: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3534: my $name = lc($attr->{'name'});
3535: foreach my $item (keys(%javafiles)) {
3536: if ($name eq $item) {
3537: $javafiles{$item} = $attr->{'value'};
3538: last;
3539: }
3540: }
1.1164 raeburn 3541: my $pathfrom;
1.640 albertel 3542: foreach my $item (keys(%mediafiles)) {
3543: if ($name eq $item) {
1.1164 raeburn 3544: $pathfrom = $attr->{'value'};
3545: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3546: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3547: last;
3548: }
3549: }
1.1164 raeburn 3550: if ($name eq 'flashvars') {
3551: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3552: }
3553: if ($pathfrom ne '') {
3554: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3555: $pathfrom);
3556: }
1.640 albertel 3557: }
3558: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3559: foreach my $item (keys(%javafiles)) {
3560: if ($attr->{$item}) {
3561: $javafiles{$item} = $attr->{$item};
3562: last;
3563: }
3564: }
3565: foreach my $item (keys(%mediafiles)) {
3566: if ($attr->{$item}) {
3567: &add_filetype($allfiles,$attr->{$item},$item);
3568: last;
3569: }
3570: }
1.1164 raeburn 3571: if (lc($tagname) eq 'embed') {
3572: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3573: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3574: $attr->{'src'});
3575: }
3576: }
1.640 albertel 3577: }
1.1243 raeburn 3578: if (lc($tagname) eq 'iframe') {
3579: my $src = $attr->{'src'} ;
3580: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
3581: &add_filetype($allfiles,$src,'src');
3582: } elsif ($src =~ m{^/}) {
3583: if ($env{'request.course.id'}) {
3584: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3585: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3586: my $url = &hreflocation('',$fullpath);
3587: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
3588: my $relpath = $1;
3589: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
3590: &add_filetype($allfiles,$1,'src');
3591: }
3592: }
3593: }
3594: }
3595: }
1.1164 raeburn 3596: if ($t->[4] =~ m{/>$}) {
1.1243 raeburn 3597: pop(@state);
1.1164 raeburn 3598: }
1.640 albertel 3599: } elsif ($t->[0] eq 'E') {
3600: my ($tagname) = ($t->[1]);
3601: if ($javafiles{'codebase'} ne '') {
3602: $javafiles{'codebase'} .= '/';
3603: }
3604: if (lc($tagname) eq 'applet' ||
3605: lc($tagname) eq 'object' ||
3606: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3607: ) {
3608: foreach my $item (keys(%javafiles)) {
3609: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3610: my $file=$javafiles{'codebase'}.$javafiles{$item};
3611: &add_filetype($allfiles,$file,$item);
3612: }
3613: }
3614: }
3615: pop @state;
3616: }
3617: }
1.1164 raeburn 3618: foreach my $id (sort(keys(%flashvars))) {
3619: if ($shockwave{$id} ne '') {
3620: my @pairs = split(/\&/,$flashvars{$id});
3621: foreach my $pair (@pairs) {
3622: my ($key,$value) = split(/\=/,$pair);
3623: if ($key eq 'thumb') {
3624: &add_filetype($allfiles,$value,$key);
3625: } elsif ($key eq 'content') {
3626: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3627: my ($ext) = ($value =~ /\.([^.]+)$/);
3628: if ($ext ne '') {
3629: &add_filetype($allfiles,$path.$value,$ext);
3630: }
3631: }
3632: }
3633: }
3634: }
1.637 raeburn 3635: return 'ok';
3636: }
3637:
1.639 albertel 3638: sub add_filetype {
3639: my ($allfiles,$file,$type)=@_;
3640: if (exists($allfiles->{$file})) {
3641: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3642: push(@{$allfiles->{$file}}, &escape($type));
3643: }
3644: } else {
3645: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3646: }
3647: }
3648:
1.1164 raeburn 3649: sub embedded_dependency {
3650: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3651: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3652: if (($identifier ne '') &&
3653: (ref($related->{$identifier}) eq 'ARRAY') &&
3654: ($pathfrom ne '')) {
3655: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3656: foreach my $dep (@{$related->{$identifier}}) {
3657: &add_filetype($allfiles,$path.$dep,'object');
3658: }
3659: }
3660: }
3661: return;
3662: }
3663:
1.493 albertel 3664: sub removeuploadedurl {
1.984 neumanie 3665: my ($url)=@_;
3666: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3667: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3668: }
3669:
3670: sub removeuserfile {
3671: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3672: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3673: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3674: if ($result eq 'ok') {
1.798 raeburn 3675: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3676: my $metafile = $fname.'.meta';
3677: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3678: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3679: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3680: my $sqlresult =
1.823 albertel 3681: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3682: 'portfolio_metadata',$group,
3683: 'delete');
1.798 raeburn 3684: }
3685: }
3686: return $result;
1.257 www 3687: }
1.15 www 3688:
1.530 albertel 3689: sub mkdiruserfile {
3690: my ($docuname,$docudom,$dir)=@_;
3691: my $home=&homeserver($docuname,$docudom);
3692: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3693: }
3694:
1.531 albertel 3695: sub renameuserfile {
3696: my ($docuname,$docudom,$old,$new)=@_;
3697: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3698: my $result = &reply("renameuserfile:$docudom:$docuname:".
3699: &escape("$old").':'.&escape("$new"),$home);
3700: if ($result eq 'ok') {
3701: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3702: my $oldmeta = $old.'.meta';
3703: my $newmeta = $new.'.meta';
3704: my $metaresult =
3705: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3706: my $url = "/uploaded/$docudom/$docuname/$old";
3707: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3708: my $sqlresult =
1.823 albertel 3709: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3710: 'portfolio_metadata',$group,
3711: 'delete');
1.798 raeburn 3712: }
3713: }
3714: return $result;
1.531 albertel 3715: }
3716:
1.14 www 3717: # ------------------------------------------------------------------------- Log
3718:
3719: sub log {
3720: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3721: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3722: }
3723:
3724: # ------------------------------------------------------------------ Course Log
1.352 www 3725: #
3726: # This routine flushes several buffers of non-mission-critical nature
3727: #
1.157 www 3728:
3729: sub flushcourselogs {
1.352 www 3730: &logthis('Flushing log buffers');
3731: #
3732: # course logs
3733: # This is a log of all transactions in a course, which can be used
3734: # for data mining purposes
3735: #
3736: # It also collects the courseid database, which lists last transaction
3737: # times and course titles for all courseids
3738: #
3739: my %courseidbuffer=();
1.921 raeburn 3740: foreach my $crsid (keys(%courselogs)) {
1.352 www 3741: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3742: &escape($courselogs{$crsid}),
3743: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3744: delete $courselogs{$crsid};
3745: } else {
3746: &logthis('Failed to flush log buffer for '.$crsid);
3747: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3748: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3749: " exceeded maximum size, deleting.</font>");
3750: delete $courselogs{$crsid};
3751: }
1.352 www 3752: }
1.920 raeburn 3753: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3754: 'description' => $coursedescrbuf{$crsid},
3755: 'inst_code' => $courseinstcodebuf{$crsid},
3756: 'type' => $coursetypebuf{$crsid},
3757: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3758: };
1.191 harris41 3759: }
1.352 www 3760: #
3761: # Write course id database (reverse lookup) to homeserver of courses
3762: # Is used in pickcourse
3763: #
1.840 albertel 3764: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3765: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3766: $courseidbuffer{$crs_home},
3767: $crs_home,'timeonly');
1.352 www 3768: }
3769: #
3770: # File accesses
3771: # Writes to the dynamic metadata of resources to get hit counts, etc.
3772: #
1.449 matthew 3773: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3774: if ($entry =~ /___count$/) {
3775: my ($dom,$name);
1.807 albertel 3776: ($dom,$name,undef)=
1.811 albertel 3777: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3778: if (! defined($dom) || $dom eq '' ||
3779: ! defined($name) || $name eq '') {
1.620 albertel 3780: my $cid = $env{'request.course.id'};
3781: $dom = $env{'request.'.$cid.'.domain'};
3782: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3783: }
1.450 matthew 3784: my $value = $accesshash{$entry};
3785: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3786: my %temphash=($url => $value);
1.449 matthew 3787: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3788: if ($result eq 'ok') {
3789: delete $accesshash{$entry};
3790: }
3791: } else {
1.811 albertel 3792: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 3793: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 3794: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 3795: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
3796: delete $accesshash{$entry};
3797: }
1.185 www 3798: }
1.191 harris41 3799: }
1.352 www 3800: #
3801: # Roles
3802: # Reverse lookup of user roles for course faculty/staff and co-authorship
3803: #
1.800 albertel 3804: foreach my $entry (keys(%userrolehash)) {
1.351 www 3805: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 3806: split(/\:/,$entry);
3807: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 3808: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 3809: $rudom,$runame) eq 'ok') {
3810: delete $userrolehash{$entry};
3811: }
3812: }
1.662 raeburn 3813: #
3814: # Reverse lookup of domain roles (dc, ad, li, sc, au)
3815: #
3816: my %domrolebuffer = ();
1.1000 raeburn 3817: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 3818: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 3819: if ($domrolebuffer{$rudom}) {
3820: $domrolebuffer{$rudom}.='&'.&escape($entry).
3821: '='.&escape($domainrolehash{$entry});
3822: } else {
3823: $domrolebuffer{$rudom}.=&escape($entry).
3824: '='.&escape($domainrolehash{$entry});
3825: }
3826: delete $domainrolehash{$entry};
3827: }
3828: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 3829: my %servers = &get_servers($dom,'library');
3830: foreach my $tryserver (keys(%servers)) {
3831: unless (&reply('domroleput:'.$dom.':'.
3832: $domrolebuffer{$dom},$tryserver) eq 'ok') {
3833: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
3834: }
1.662 raeburn 3835: }
3836: }
1.186 www 3837: $dumpcount++;
1.157 www 3838: }
3839:
3840: sub courselog {
3841: my $what=shift;
1.158 www 3842: $what=time.':'.$what;
1.620 albertel 3843: unless ($env{'request.course.id'}) { return ''; }
3844: $coursedombuf{$env{'request.course.id'}}=
3845: $env{'course.'.$env{'request.course.id'}.'.domain'};
3846: $coursenumbuf{$env{'request.course.id'}}=
3847: $env{'course.'.$env{'request.course.id'}.'.num'};
3848: $coursehombuf{$env{'request.course.id'}}=
3849: $env{'course.'.$env{'request.course.id'}.'.home'};
3850: $coursedescrbuf{$env{'request.course.id'}}=
3851: $env{'course.'.$env{'request.course.id'}.'.description'};
3852: $courseinstcodebuf{$env{'request.course.id'}}=
3853: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3854: $courseownerbuf{$env{'request.course.id'}}=
3855: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3856: $coursetypebuf{$env{'request.course.id'}}=
3857: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3858: if (defined $courselogs{$env{'request.course.id'}}) {
3859: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3860: } else {
1.620 albertel 3861: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3862: }
1.620 albertel 3863: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3864: &flushcourselogs();
3865: }
1.158 www 3866: }
3867:
3868: sub courseacclog {
3869: my $fnsymb=shift;
1.620 albertel 3870: unless ($env{'request.course.id'}) { return ''; }
3871: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 3872: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 3873: $what.=':POST';
1.583 matthew 3874: # FIXME: Probably ought to escape things....
1.800 albertel 3875: foreach my $key (keys(%env)) {
3876: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3877: my $formitem = $1;
3878: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3879: $what.=':'.$formitem.'='.$env{$key};
3880: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3881: $what.=':'.$formitem.'='.$env{$key};
3882: }
1.158 www 3883: }
1.191 harris41 3884: }
1.583 matthew 3885: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3886: # FIXME: We should not be depending on a form parameter that someone
3887: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3888: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3889: $what.= ':POST';
3890: # FIXME: Probably ought to escape things....
3891: foreach my $element ('courseexp','crsfulltext','crsrelated',
3892: 'crsdiscuss') {
1.620 albertel 3893: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3894: }
3895: }
1.158 www 3896: }
3897: &courselog($what);
1.149 www 3898: }
3899:
1.185 www 3900: sub countacc {
3901: my $url=&declutter(shift);
1.458 matthew 3902: return if (! defined($url) || $url eq '');
1.620 albertel 3903: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 3904: #
3905: # Mark that this url was used in this course
3906: #
1.620 albertel 3907: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 3908: #
3909: # Increase the access count for this resource in this child process
3910: #
1.281 www 3911: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3912: $accesshash{$key}++;
1.185 www 3913: }
1.349 www 3914:
1.361 www 3915: sub linklog {
3916: my ($from,$to)=@_;
3917: $from=&declutter($from);
3918: $to=&declutter($to);
3919: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3920: $accesshash{$to.'___'.$from.'___goto'}=1;
3921: }
1.1160 www 3922:
3923: sub statslog {
3924: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
3925: if ($users<2) { return; }
3926: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
3927: 'course' => $env{'request.course.id'},
3928: 'sections' => '"all"',
3929: 'num_students' => $users,
3930: 'part' => $part,
3931: 'symb' => $symb,
3932: 'mean_tries' => $av_attempts,
3933: 'deg_of_diff' => $degdiff});
3934: foreach my $key (keys(%dynstore)) {
3935: $accesshash{$key}=$dynstore{$key};
3936: }
3937: }
1.361 www 3938:
1.349 www 3939: sub userrolelog {
3940: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 3941: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 3942: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3943: $userrolehash
3944: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3945: =$tend.':'.$tstart;
1.662 raeburn 3946: }
1.1169 droeschl 3947: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 3948: $userrolehash
3949: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3950: =$tend.':'.$tstart;
3951: }
1.1169 droeschl 3952: if ($trole =~ /^(dc|ad|li|au|dg|sc)/ ) {
1.662 raeburn 3953: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3954: $domainrolehash
3955: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3956: = $tend.':'.$tstart;
3957: }
1.351 www 3958: }
3959:
1.957 raeburn 3960: sub courserolelog {
3961: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1184 raeburn 3962: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
3963: my $cdom = $1;
3964: my $cnum = $2;
3965: my $sec = $3;
3966: my $namespace = 'rolelog';
3967: my %storehash = (
3968: role => $trole,
3969: start => $tstart,
3970: end => $tend,
3971: selfenroll => $selfenroll,
3972: context => $context,
3973: );
3974: if ($trole eq 'gr') {
3975: $namespace = 'groupslog';
3976: $storehash{'group'} = $sec;
3977: } else {
3978: $storehash{'section'} = $sec;
3979: }
1.1188 raeburn 3980: &write_log('course',$namespace,\%storehash,$delflag,$username,
3981: $domain,$cnum,$cdom);
1.1184 raeburn 3982: if (($trole ne 'st') || ($sec ne '')) {
3983: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 3984: }
3985: }
3986: return;
3987: }
3988:
1.1184 raeburn 3989: sub domainrolelog {
3990: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3991: if ($area =~ m{^/($match_domain)/$}) {
3992: my $cdom = $1;
3993: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
3994: my $namespace = 'rolelog';
3995: my %storehash = (
3996: role => $trole,
3997: start => $tstart,
3998: end => $tend,
3999: context => $context,
4000: );
1.1188 raeburn 4001: &write_log('domain',$namespace,\%storehash,$delflag,$username,
4002: $domain,$domconfiguser,$cdom);
1.1184 raeburn 4003: }
4004: return;
4005:
4006: }
4007:
4008: sub coauthorrolelog {
4009: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4010: if ($area =~ m{^/($match_domain)/($match_username)$}) {
4011: my $audom = $1;
4012: my $auname = $2;
4013: my $namespace = 'rolelog';
4014: my %storehash = (
4015: role => $trole,
4016: start => $tstart,
4017: end => $tend,
4018: context => $context,
4019: );
1.1188 raeburn 4020: &write_log('author',$namespace,\%storehash,$delflag,$username,
4021: $domain,$auname,$audom);
1.1184 raeburn 4022: }
4023: return;
4024: }
4025:
1.351 www 4026: sub get_course_adv_roles {
1.948 raeburn 4027: my ($cid,$codes) = @_;
1.620 albertel 4028: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 4029: my %coursehash=&coursedescription($cid);
1.988 raeburn 4030: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 4031: my %nothide=();
1.800 albertel 4032: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 4033: if ($user !~ /:/) {
4034: $nothide{join(':',split(/[\@]/,$user))}=1;
4035: } else {
4036: $nothide{$user}=1;
4037: }
1.470 www 4038: }
1.1219 raeburn 4039: my @possdoms = ($coursehash{'domain'});
4040: if ($coursehash{'checkforpriv'}) {
4041: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4042: }
1.351 www 4043: my %returnhash=();
4044: my %dumphash=
4045: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
4046: my $now=time;
1.997 raeburn 4047: my %privileged;
1.1000 raeburn 4048: foreach my $entry (keys(%dumphash)) {
1.800 albertel 4049: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 4050: if (($tstart) && ($tstart<0)) { next; }
4051: if (($tend) && ($tend<$now)) { next; }
4052: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 4053: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 4054: if ($username eq '' || $domain eq '') { next; }
1.1219 raeburn 4055: if ((&privileged($username,$domain,\@possdoms)) &&
1.997 raeburn 4056: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 4057: if ($role eq 'cr') { next; }
1.948 raeburn 4058: if ($codes) {
4059: if ($section) { $role .= ':'.$section; }
4060: if ($returnhash{$role}) {
4061: $returnhash{$role}.=','.$username.':'.$domain;
4062: } else {
4063: $returnhash{$role}=$username.':'.$domain;
4064: }
1.351 www 4065: } else {
1.988 raeburn 4066: my $key=&plaintext($role,$crstype);
1.973 bisitz 4067: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 4068: if ($returnhash{$key}) {
4069: $returnhash{$key}.=','.$username.':'.$domain;
4070: } else {
4071: $returnhash{$key}=$username.':'.$domain;
4072: }
1.351 www 4073: }
1.948 raeburn 4074: }
1.400 www 4075: return %returnhash;
4076: }
4077:
4078: sub get_my_roles {
1.937 raeburn 4079: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 4080: unless (defined($uname)) { $uname=$env{'user.name'}; }
4081: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 4082: my (%dumphash,%nothide);
1.1086 raeburn 4083: if ($context eq 'userroles') {
1.1166 raeburn 4084: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 4085: } else {
1.1219 raeburn 4086: %dumphash = &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 4087: if ($hidepriv) {
4088: my %coursehash=&coursedescription($udom.'_'.$uname);
4089: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4090: if ($user !~ /:/) {
4091: $nothide{join(':',split(/[\@]/,$user))} = 1;
4092: } else {
4093: $nothide{$user} = 1;
4094: }
4095: }
4096: }
1.858 raeburn 4097: }
1.400 www 4098: my %returnhash=();
4099: my $now=time;
1.999 raeburn 4100: my %privileged;
1.800 albertel 4101: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 4102: my ($role,$tend,$tstart);
4103: if ($context eq 'userroles') {
1.1149 raeburn 4104: next if ($entry =~ /^rolesdef/);
1.867 raeburn 4105: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
4106: } else {
4107: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
4108: }
1.400 www 4109: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 4110: my $status = 'active';
1.939 raeburn 4111: if (($tend) && ($tend<=$now)) {
1.832 raeburn 4112: $status = 'previous';
4113: }
4114: if (($tstart) && ($now<$tstart)) {
4115: $status = 'future';
4116: }
4117: if (ref($types) eq 'ARRAY') {
4118: if (!grep(/^\Q$status\E$/,@{$types})) {
4119: next;
4120: }
4121: } else {
4122: if ($status ne 'active') {
4123: next;
4124: }
4125: }
1.867 raeburn 4126: my ($rolecode,$username,$domain,$section,$area);
4127: if ($context eq 'userroles') {
1.1186 raeburn 4128: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 4129: (undef,$domain,$username,$section) = split(/\//,$area);
4130: } else {
4131: ($role,$username,$domain,$section) = split(/\:/,$entry);
4132: }
1.832 raeburn 4133: if (ref($roledoms) eq 'ARRAY') {
4134: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
4135: next;
4136: }
4137: }
4138: if (ref($roles) eq 'ARRAY') {
4139: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 4140: if ($role =~ /^cr\//) {
4141: if (!grep(/^cr$/,@{$roles})) {
4142: next;
4143: }
1.1104 raeburn 4144: } elsif ($role =~ /^gr\//) {
4145: if (!grep(/^gr$/,@{$roles})) {
4146: next;
4147: }
1.922 raeburn 4148: } else {
4149: next;
4150: }
1.832 raeburn 4151: }
1.867 raeburn 4152: }
1.937 raeburn 4153: if ($hidepriv) {
1.1219 raeburn 4154: my @privroles = ('dc','su');
1.999 raeburn 4155: if ($context eq 'userroles') {
1.1219 raeburn 4156: next if (grep(/^\Q$role\E$/,@privroles));
1.999 raeburn 4157: } else {
1.1219 raeburn 4158: my $possdoms = [$domain];
4159: if (ref($roledoms) eq 'ARRAY') {
4160: push(@{$possdoms},@{$roledoms});
1.999 raeburn 4161: }
1.1219 raeburn 4162: if (&privileged($username,$domain,$possdoms,\@privroles)) {
1.999 raeburn 4163: if (!$nothide{$username.':'.$domain}) {
4164: next;
4165: }
4166: }
1.937 raeburn 4167: }
4168: }
1.933 raeburn 4169: if ($withsec) {
4170: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4171: $tstart.':'.$tend;
4172: } else {
4173: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4174: }
1.832 raeburn 4175: }
1.373 www 4176: return %returnhash;
1.399 www 4177: }
4178:
4179: # ----------------------------------------------------- Frontpage Announcements
4180: #
4181: #
4182:
4183: sub postannounce {
4184: my ($server,$text)=@_;
1.844 albertel 4185: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4186: unless ($text=~/\w/) { $text=''; }
4187: return &reply('setannounce:'.&escape($text),$server);
4188: }
4189:
4190: sub getannounce {
1.448 albertel 4191:
4192: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4193: my $announcement='';
1.800 albertel 4194: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4195: close($fh);
1.399 www 4196: if ($announcement=~/\w/) {
4197: return
4198: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4199: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4200: } else {
4201: return '';
4202: }
4203: } else {
4204: return '';
4205: }
1.351 www 4206: }
1.353 www 4207:
4208: # ---------------------------------------------------------- Course ID routines
4209: # Deal with domain's nohist_courseid.db files
4210: #
4211:
4212: sub courseidput {
1.921 raeburn 4213: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4214: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4215: my $outcome;
4216: if ($caller eq 'timeonly') {
4217: my $cids = '';
4218: foreach my $item (keys(%$storehash)) {
4219: $cids.=&escape($item).'&';
4220: }
4221: $cids=~s/\&$//;
4222: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4223: $coursehome);
4224: } else {
4225: my $items = '';
4226: foreach my $item (keys(%$storehash)) {
4227: $items.= &escape($item).'='.
4228: &freeze_escape($$storehash{$item}).'&';
4229: }
4230: $items=~s/\&$//;
4231: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4232: $coursehome);
1.918 raeburn 4233: }
4234: if ($outcome eq 'unknown_cmd') {
4235: my $what;
4236: foreach my $cid (keys(%$storehash)) {
4237: $what .= &escape($cid).'=';
1.921 raeburn 4238: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4239: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4240: }
4241: $what =~ s/\:$/&/;
4242: }
4243: $what =~ s/\&$//;
4244: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4245: } else {
4246: return $outcome;
4247: }
1.353 www 4248: }
4249:
4250: sub courseiddump {
1.921 raeburn 4251: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4252: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4253: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1247 raeburn 4254: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
4255: $hasuniquecode)=@_;
1.918 raeburn 4256: my $as_hash = 1;
4257: my %returnhash;
4258: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4259: my %libserv = &all_library();
4260: foreach my $tryserver (keys(%libserv)) {
4261: if ( ( $hostidflag == 1
4262: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4263: || (!defined($hostidflag)) ) {
4264:
1.918 raeburn 4265: if (($domfilter eq '') ||
4266: (&host_domain($tryserver) eq $domfilter)) {
1.1180 droeschl 4267: my $rep;
4268: if (grep { $_ eq $tryserver } current_machine_ids()) {
4269: $rep = LONCAPA::Lond::dump_course_id_handler(
4270: join(":", (&host_domain($tryserver), $sincefilter,
4271: &escape($descfilter), &escape($instcodefilter),
4272: &escape($ownerfilter), &escape($coursefilter),
4273: &escape($typefilter), &escape($regexp_ok),
4274: $as_hash, &escape($selfenrollonly),
4275: &escape($catfilter), $showhidden, $caller,
4276: &escape($cloner), &escape($cc_clone), $cloneonly,
4277: &escape($createdbefore), &escape($createdafter),
1.1247 raeburn 4278: &escape($creationcontext), $domcloner, $hasuniquecode)));
1.1180 droeschl 4279: } else {
4280: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
4281: $sincefilter.':'.&escape($descfilter).':'.
4282: &escape($instcodefilter).':'.&escape($ownerfilter).
4283: ':'.&escape($coursefilter).':'.&escape($typefilter).
4284: ':'.&escape($regexp_ok).':'.$as_hash.':'.
4285: &escape($selfenrollonly).':'.&escape($catfilter).':'.
4286: $showhidden.':'.$caller.':'.&escape($cloner).':'.
4287: &escape($cc_clone).':'.$cloneonly.':'.
4288: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1247 raeburn 4289: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode,
1.1180 droeschl 4290: $tryserver);
4291: }
4292:
1.918 raeburn 4293: my @pairs=split(/\&/,$rep);
4294: foreach my $item (@pairs) {
4295: my ($key,$value)=split(/\=/,$item,2);
4296: $key = &unescape($key);
4297: next if ($key =~ /^error: 2 /);
4298: my $result = &thaw_unescape($value);
4299: if (ref($result) eq 'HASH') {
4300: $returnhash{$key}=$result;
4301: } else {
1.921 raeburn 4302: my @responses = split(/:/,$value);
4303: my @items = ('description','inst_code','owner','type');
1.918 raeburn 4304: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 4305: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 4306: }
1.1008 raeburn 4307: }
1.353 www 4308: }
4309: }
4310: }
4311: }
4312: return %returnhash;
4313: }
4314:
1.1055 raeburn 4315: sub courselastaccess {
4316: my ($cdom,$cnum,$hostidref) = @_;
4317: my %returnhash;
4318: if ($cdom && $cnum) {
4319: my $chome = &homeserver($cnum,$cdom);
4320: if ($chome ne 'no_host') {
4321: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
4322: &extract_lastaccess(\%returnhash,$rep);
4323: }
4324: } else {
4325: if (!$cdom) { $cdom=''; }
4326: my %libserv = &all_library();
4327: foreach my $tryserver (keys(%libserv)) {
4328: if (ref($hostidref) eq 'ARRAY') {
4329: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
4330: }
4331: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
4332: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
4333: &extract_lastaccess(\%returnhash,$rep);
4334: }
4335: }
4336: }
4337: return %returnhash;
4338: }
4339:
4340: sub extract_lastaccess {
4341: my ($returnhash,$rep) = @_;
4342: if (ref($returnhash) eq 'HASH') {
4343: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
4344: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
4345: $rep eq '') {
4346: my @pairs=split(/\&/,$rep);
4347: foreach my $item (@pairs) {
4348: my ($key,$value)=split(/\=/,$item,2);
4349: $key = &unescape($key);
4350: next if ($key =~ /^error: 2 /);
4351: $returnhash->{$key} = &thaw_unescape($value);
4352: }
4353: }
4354: }
4355: return;
4356: }
4357:
1.658 raeburn 4358: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 4359:
4360: sub dcmailput {
1.685 raeburn 4361: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 4362: my $status = &Apache::lonnet::critical(
1.740 www 4363: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
4364: &escape($message),$server);
1.662 raeburn 4365: return $status;
4366: }
4367:
1.658 raeburn 4368: sub dcmaildump {
4369: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 4370: my %returnhash=();
1.846 albertel 4371:
4372: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 4373: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
4374: &escape($enddate).':';
4375: my @esc_senders=map { &escape($_)} @$senders;
4376: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 4377: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 4378: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 4379: if (($key) && ($value)) {
4380: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 4381: }
4382: }
4383: }
4384: return %returnhash;
4385: }
1.662 raeburn 4386: # ---------------------------------------------------------- Domain roles
4387:
4388: sub get_domain_roles {
4389: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 4390: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 4391: $startdate = '.';
4392: }
1.1018 raeburn 4393: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 4394: $enddate = '.';
4395: }
1.922 raeburn 4396: my $rolelist;
4397: if (ref($roles) eq 'ARRAY') {
1.1219 raeburn 4398: $rolelist = join('&',@{$roles});
1.922 raeburn 4399: }
1.662 raeburn 4400: my %personnel = ();
1.841 albertel 4401:
4402: my %servers = &get_servers($dom,'library');
4403: foreach my $tryserver (keys(%servers)) {
4404: %{$personnel{$tryserver}}=();
4405: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
4406: &escape($startdate).':'.
4407: &escape($enddate).':'.
4408: &escape($rolelist), $tryserver))) {
4409: my ($key,$value) = split(/\=/,$line,2);
4410: if (($key) && ($value)) {
4411: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
4412: }
4413: }
1.662 raeburn 4414: }
4415: return %personnel;
4416: }
1.658 raeburn 4417:
1.1057 www 4418: # ----------------------------------------------------------- Interval timing
1.149 www 4419:
1.1153 www 4420: {
4421: # Caches needed for speedup of navmaps
4422: # We don't want to cache this for very long at all (5 seconds at most)
4423: #
4424: # The user for whom we cache
4425: my $cachedkey='';
4426: # The cached times for this user
4427: my %cachedtimes=();
4428: # When this was last done
4429: my $cachedtime=();
4430:
4431: sub load_all_first_access {
1.1154 raeburn 4432: my ($uname,$udom)=@_;
1.1156 www 4433: if (($cachedkey eq $uname.':'.$udom) &&
1.1174 raeburn 4434: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4435: return;
4436: }
4437: $cachedtime=time;
4438: $cachedkey=$uname.':'.$udom;
4439: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4440: }
4441:
1.504 albertel 4442: sub get_first_access {
1.1162 raeburn 4443: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4444: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4445: if ($argsymb) { $symb=$argsymb; }
4446: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4447: if ($argmap) { $map = $argmap; }
1.926 albertel 4448: if ($type eq 'course') {
4449: $res='course';
4450: } elsif ($type eq 'map') {
1.588 albertel 4451: $res=&symbread($map);
4452: } else {
4453: $res=$symb;
4454: }
1.1153 www 4455: &load_all_first_access($uname,$udom);
4456: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4457: }
4458:
4459: sub set_first_access {
1.1162 raeburn 4460: my ($type,$interval)=@_;
1.790 albertel 4461: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4462: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4463: if ($type eq 'course') {
4464: $res='course';
4465: } elsif ($type eq 'map') {
1.588 albertel 4466: $res=&symbread($map);
4467: } else {
4468: $res=$symb;
4469: }
1.1153 www 4470: $cachedkey='';
1.1162 raeburn 4471: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4472: if (!$firstaccess) {
1.1162 raeburn 4473: my $start = time;
4474: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4475: $udom,$uname);
4476: if ($putres eq 'ok') {
4477: &put('timerinterval',{"$courseid\0$res"=>$interval},
4478: $udom,$uname);
4479: &appenv(
4480: {
4481: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4482: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4483: }
4484: );
4485: }
4486: return $putres;
1.505 albertel 4487: }
4488: return 'already_set';
1.504 albertel 4489: }
1.1153 www 4490: }
1.110 www 4491: # --------------------------------------------- Set Expire Date for Spreadsheet
4492:
4493: sub expirespread {
4494: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 4495: my $cid=$env{'request.course.id'};
1.110 www 4496: if ($cid) {
4497: my $now=time;
4498: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 4499: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
4500: $env{'course.'.$cid.'.num'}.
1.110 www 4501: ':nohist_expirationdates:'.
4502: &escape($key).'='.$now,
1.620 albertel 4503: $env{'course.'.$cid.'.home'})
1.110 www 4504: }
4505: return 'ok';
1.14 www 4506: }
4507:
1.109 www 4508: # ----------------------------------------------------- Devalidate Spreadsheets
4509:
4510: sub devalidate {
1.325 www 4511: my ($symb,$uname,$udom)=@_;
1.620 albertel 4512: my $cid=$env{'request.course.id'};
1.109 www 4513: if ($cid) {
1.391 matthew 4514: # delete the stored spreadsheets for
4515: # - the student level sheet of this user in course's homespace
4516: # - the assessment level sheet for this resource
4517: # for this user in user's homespace
1.553 albertel 4518: # - current conditional state info
1.325 www 4519: my $key=$uname.':'.$udom.':';
1.109 www 4520: my $status=
1.299 matthew 4521: &del('nohist_calculatedsheets',
1.391 matthew 4522: [$key.'studentcalc:'],
1.620 albertel 4523: $env{'course.'.$cid.'.domain'},
4524: $env{'course.'.$cid.'.num'})
1.133 albertel 4525: .' '.
4526: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 4527: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 4528: unless ($status eq 'ok ok') {
4529: &logthis('Could not devalidate spreadsheet '.
1.325 www 4530: $uname.' at '.$udom.' for '.
1.109 www 4531: $symb.': '.$status);
1.133 albertel 4532: }
1.553 albertel 4533: &delenv('user.state.'.$cid);
1.109 www 4534: }
4535: }
4536:
1.265 albertel 4537: sub get_scalar {
4538: my ($string,$end) = @_;
4539: my $value;
4540: if ($$string =~ s/^([^&]*?)($end)/$2/) {
4541: $value = $1;
4542: } elsif ($$string =~ s/^([^&]*?)&//) {
4543: $value = $1;
4544: }
4545: return &unescape($value);
4546: }
4547:
4548: sub array2str {
4549: my (@array) = @_;
4550: my $result=&arrayref2str(\@array);
4551: $result=~s/^__ARRAY_REF__//;
4552: $result=~s/__END_ARRAY_REF__$//;
4553: return $result;
4554: }
4555:
1.204 albertel 4556: sub arrayref2str {
4557: my ($arrayref) = @_;
1.265 albertel 4558: my $result='__ARRAY_REF__';
1.204 albertel 4559: foreach my $elem (@$arrayref) {
1.265 albertel 4560: if(ref($elem) eq 'ARRAY') {
4561: $result.=&arrayref2str($elem).'&';
4562: } elsif(ref($elem) eq 'HASH') {
4563: $result.=&hashref2str($elem).'&';
4564: } elsif(ref($elem)) {
4565: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 4566: } else {
4567: $result.=&escape($elem).'&';
4568: }
4569: }
4570: $result=~s/\&$//;
1.265 albertel 4571: $result .= '__END_ARRAY_REF__';
1.204 albertel 4572: return $result;
4573: }
4574:
1.168 albertel 4575: sub hash2str {
1.204 albertel 4576: my (%hash) = @_;
4577: my $result=&hashref2str(\%hash);
1.265 albertel 4578: $result=~s/^__HASH_REF__//;
4579: $result=~s/__END_HASH_REF__$//;
1.204 albertel 4580: return $result;
4581: }
4582:
4583: sub hashref2str {
4584: my ($hashref)=@_;
1.265 albertel 4585: my $result='__HASH_REF__';
1.800 albertel 4586: foreach my $key (sort(keys(%$hashref))) {
4587: if (ref($key) eq 'ARRAY') {
4588: $result.=&arrayref2str($key).'=';
4589: } elsif (ref($key) eq 'HASH') {
4590: $result.=&hashref2str($key).'=';
4591: } elsif (ref($key)) {
1.265 albertel 4592: $result.='=';
1.800 albertel 4593: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 4594: } else {
1.1132 raeburn 4595: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 4596: }
4597:
1.800 albertel 4598: if(ref($hashref->{$key}) eq 'ARRAY') {
4599: $result.=&arrayref2str($hashref->{$key}).'&';
4600: } elsif(ref($hashref->{$key}) eq 'HASH') {
4601: $result.=&hashref2str($hashref->{$key}).'&';
4602: } elsif(ref($hashref->{$key})) {
1.265 albertel 4603: $result.='&';
1.800 albertel 4604: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 4605: } else {
1.800 albertel 4606: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 4607: }
4608: }
1.168 albertel 4609: $result=~s/\&$//;
1.265 albertel 4610: $result .= '__END_HASH_REF__';
1.168 albertel 4611: return $result;
4612: }
4613:
4614: sub str2hash {
1.265 albertel 4615: my ($string)=@_;
4616: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
4617: return %$hash;
4618: }
4619:
4620: sub str2hashref {
1.168 albertel 4621: my ($string) = @_;
1.265 albertel 4622:
4623: my %hash;
4624:
4625: if($string !~ /^__HASH_REF__/) {
4626: if (! ($string eq '' || !defined($string))) {
4627: $hash{'error'}='Not hash reference';
4628: }
4629: return (\%hash, $string);
4630: }
4631:
4632: $string =~ s/^__HASH_REF__//;
4633:
4634: while($string !~ /^__END_HASH_REF__/) {
4635: #key
4636: my $key='';
4637: if($string =~ /^__HASH_REF__/) {
4638: ($key, $string)=&str2hashref($string);
4639: if(defined($key->{'error'})) {
4640: $hash{'error'}='Bad data';
4641: return (\%hash, $string);
4642: }
4643: } elsif($string =~ /^__ARRAY_REF__/) {
4644: ($key, $string)=&str2arrayref($string);
4645: if($key->[0] eq 'Array reference error') {
4646: $hash{'error'}='Bad data';
4647: return (\%hash, $string);
4648: }
4649: } else {
4650: $string =~ s/^(.*?)=//;
1.267 albertel 4651: $key=&unescape($1);
1.265 albertel 4652: }
4653: $string =~ s/^=//;
4654:
4655: #value
4656: my $value='';
4657: if($string =~ /^__HASH_REF__/) {
4658: ($value, $string)=&str2hashref($string);
4659: if(defined($value->{'error'})) {
4660: $hash{'error'}='Bad data';
4661: return (\%hash, $string);
4662: }
4663: } elsif($string =~ /^__ARRAY_REF__/) {
4664: ($value, $string)=&str2arrayref($string);
4665: if($value->[0] eq 'Array reference error') {
4666: $hash{'error'}='Bad data';
4667: return (\%hash, $string);
4668: }
4669: } else {
4670: $value=&get_scalar(\$string,'__END_HASH_REF__');
4671: }
4672: $string =~ s/^&//;
4673:
4674: $hash{$key}=$value;
1.204 albertel 4675: }
1.265 albertel 4676:
4677: $string =~ s/^__END_HASH_REF__//;
4678:
4679: return (\%hash, $string);
1.204 albertel 4680: }
4681:
4682: sub str2array {
1.265 albertel 4683: my ($string)=@_;
4684: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
4685: return @$array;
4686: }
4687:
4688: sub str2arrayref {
1.204 albertel 4689: my ($string) = @_;
1.265 albertel 4690: my @array;
4691:
4692: if($string !~ /^__ARRAY_REF__/) {
4693: if (! ($string eq '' || !defined($string))) {
4694: $array[0]='Array reference error';
4695: }
4696: return (\@array, $string);
4697: }
4698:
4699: $string =~ s/^__ARRAY_REF__//;
4700:
4701: while($string !~ /^__END_ARRAY_REF__/) {
4702: my $value='';
4703: if($string =~ /^__HASH_REF__/) {
4704: ($value, $string)=&str2hashref($string);
4705: if(defined($value->{'error'})) {
4706: $array[0] ='Array reference error';
4707: return (\@array, $string);
4708: }
4709: } elsif($string =~ /^__ARRAY_REF__/) {
4710: ($value, $string)=&str2arrayref($string);
4711: if($value->[0] eq 'Array reference error') {
4712: $array[0] ='Array reference error';
4713: return (\@array, $string);
4714: }
4715: } else {
4716: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
4717: }
4718: $string =~ s/^&//;
4719:
4720: push(@array, $value);
1.191 harris41 4721: }
1.265 albertel 4722:
4723: $string =~ s/^__END_ARRAY_REF__//;
4724:
4725: return (\@array, $string);
1.168 albertel 4726: }
4727:
1.167 albertel 4728: # -------------------------------------------------------------------Temp Store
4729:
1.168 albertel 4730: sub tmpreset {
4731: my ($symb,$namespace,$domain,$stuname) = @_;
4732: if (!$symb) {
4733: $symb=&symbread();
1.620 albertel 4734: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4735: }
4736: $symb=escape($symb);
4737:
1.620 albertel 4738: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 4739: $namespace=~s/\//\_/g;
4740: $namespace=~s/\W//g;
4741:
1.620 albertel 4742: if (!$domain) { $domain=$env{'user.domain'}; }
4743: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4744: if ($domain eq 'public' && $stuname eq 'public') {
4745: $stuname=$ENV{'REMOTE_ADDR'};
4746: }
1.1117 foxr 4747: my $path=LONCAPA::tempdir();
1.168 albertel 4748: my %hash;
4749: if (tie(%hash,'GDBM_File',
4750: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4751: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 4752: foreach my $key (keys(%hash)) {
1.180 albertel 4753: if ($key=~ /:$symb/) {
1.168 albertel 4754: delete($hash{$key});
4755: }
4756: }
4757: }
4758: }
4759:
1.167 albertel 4760: sub tmpstore {
1.168 albertel 4761: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4762:
4763: if (!$symb) {
4764: $symb=&symbread();
1.620 albertel 4765: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4766: }
4767: $symb=escape($symb);
4768:
4769: if (!$namespace) {
4770: # I don't think we would ever want to store this for a course.
4771: # it seems this will only be used if we don't have a course.
1.620 albertel 4772: #$namespace=$env{'request.course.id'};
1.168 albertel 4773: #if (!$namespace) {
1.620 albertel 4774: $namespace=$env{'request.state'};
1.168 albertel 4775: #}
4776: }
4777: $namespace=~s/\//\_/g;
4778: $namespace=~s/\W//g;
1.620 albertel 4779: if (!$domain) { $domain=$env{'user.domain'}; }
4780: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4781: if ($domain eq 'public' && $stuname eq 'public') {
4782: $stuname=$ENV{'REMOTE_ADDR'};
4783: }
1.168 albertel 4784: my $now=time;
4785: my %hash;
1.1117 foxr 4786: my $path=LONCAPA::tempdir();
1.168 albertel 4787: if (tie(%hash,'GDBM_File',
4788: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4789: &GDBM_WRCREAT(),0640)) {
1.168 albertel 4790: $hash{"version:$symb"}++;
4791: my $version=$hash{"version:$symb"};
4792: my $allkeys='';
4793: foreach my $key (keys(%$storehash)) {
4794: $allkeys.=$key.':';
1.591 albertel 4795: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 4796: }
4797: $hash{"$version:$symb:timestamp"}=$now;
4798: $allkeys.='timestamp';
4799: $hash{"$version:keys:$symb"}=$allkeys;
4800: if (untie(%hash)) {
4801: return 'ok';
4802: } else {
4803: return "error:$!";
4804: }
4805: } else {
4806: return "error:$!";
4807: }
4808: }
1.167 albertel 4809:
1.168 albertel 4810: # -----------------------------------------------------------------Temp Restore
1.167 albertel 4811:
1.168 albertel 4812: sub tmprestore {
4813: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 4814:
1.168 albertel 4815: if (!$symb) {
4816: $symb=&symbread();
1.620 albertel 4817: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4818: }
4819: $symb=escape($symb);
4820:
1.620 albertel 4821: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 4822:
1.620 albertel 4823: if (!$domain) { $domain=$env{'user.domain'}; }
4824: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4825: if ($domain eq 'public' && $stuname eq 'public') {
4826: $stuname=$ENV{'REMOTE_ADDR'};
4827: }
1.168 albertel 4828: my %returnhash;
4829: $namespace=~s/\//\_/g;
4830: $namespace=~s/\W//g;
4831: my %hash;
1.1117 foxr 4832: my $path=LONCAPA::tempdir();
1.168 albertel 4833: if (tie(%hash,'GDBM_File',
4834: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4835: &GDBM_READER(),0640)) {
1.168 albertel 4836: my $version=$hash{"version:$symb"};
4837: $returnhash{'version'}=$version;
4838: my $scope;
4839: for ($scope=1;$scope<=$version;$scope++) {
4840: my $vkeys=$hash{"$scope:keys:$symb"};
4841: my @keys=split(/:/,$vkeys);
4842: my $key;
4843: $returnhash{"$scope:keys"}=$vkeys;
4844: foreach $key (@keys) {
1.591 albertel 4845: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
4846: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 4847: }
4848: }
1.168 albertel 4849: if (!(untie(%hash))) {
4850: return "error:$!";
4851: }
4852: } else {
4853: return "error:$!";
4854: }
4855: return %returnhash;
1.167 albertel 4856: }
4857:
1.9 www 4858: # ----------------------------------------------------------------------- Store
4859:
4860: sub store {
1.1269 raeburn 4861: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 4862: my $home='';
4863:
1.168 albertel 4864: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4865:
1.213 www 4866: $symb=&symbclean($symb);
1.122 albertel 4867: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4868:
1.620 albertel 4869: if (!$domain) { $domain=$env{'user.domain'}; }
4870: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4871:
4872: &devalidate($symb,$stuname,$domain);
1.109 www 4873:
4874: $symb=escape($symb);
1.187 www 4875: if (!$namespace) {
1.620 albertel 4876: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4877: return '';
4878: }
4879: }
1.620 albertel 4880: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4881:
4882: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4883: $$storehash{'host'}=$perlvar{'lonHostID'};
4884:
1.12 www 4885: my $namevalue='';
1.800 albertel 4886: foreach my $key (keys(%$storehash)) {
4887: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4888: }
1.12 www 4889: $namevalue=~s/\&$//;
1.187 www 4890: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.1269 raeburn 4891: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.9 www 4892: }
4893:
1.47 www 4894: # -------------------------------------------------------------- Critical Store
4895:
4896: sub cstore {
1.1269 raeburn 4897: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 4898: my $home='';
4899:
1.168 albertel 4900: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4901:
1.213 www 4902: $symb=&symbclean($symb);
1.122 albertel 4903: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4904:
1.620 albertel 4905: if (!$domain) { $domain=$env{'user.domain'}; }
4906: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4907:
4908: &devalidate($symb,$stuname,$domain);
1.109 www 4909:
4910: $symb=escape($symb);
1.187 www 4911: if (!$namespace) {
1.620 albertel 4912: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4913: return '';
4914: }
4915: }
1.620 albertel 4916: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4917:
4918: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4919: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 4920:
1.47 www 4921: my $namevalue='';
1.800 albertel 4922: foreach my $key (keys(%$storehash)) {
4923: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4924: }
1.47 www 4925: $namevalue=~s/\&$//;
1.187 www 4926: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4927: return critical
1.1269 raeburn 4928: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.47 www 4929: }
4930:
1.9 www 4931: # --------------------------------------------------------------------- Restore
4932:
4933: sub restore {
1.124 www 4934: my ($symb,$namespace,$domain,$stuname) = @_;
4935: my $home='';
4936:
1.168 albertel 4937: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4938:
1.122 albertel 4939: if (!$symb) {
1.1224 raeburn 4940: return if ($namespace eq 'courserequests');
4941: unless ($symb=escape(&symbread())) { return ''; }
1.122 albertel 4942: } else {
1.1224 raeburn 4943: unless ($namespace eq 'courserequests') {
4944: $symb=&escape(&symbclean($symb));
4945: }
1.122 albertel 4946: }
1.188 www 4947: if (!$namespace) {
1.620 albertel 4948: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4949: return '';
4950: }
4951: }
1.620 albertel 4952: if (!$domain) { $domain=$env{'user.domain'}; }
4953: if (!$stuname) { $stuname=$env{'user.name'}; }
4954: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4955: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4956:
1.12 www 4957: my %returnhash=();
1.800 albertel 4958: foreach my $line (split(/\&/,$answer)) {
4959: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4960: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4961: }
1.75 www 4962: my $version;
4963: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4964: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4965: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4966: }
1.75 www 4967: }
1.13 www 4968: return %returnhash;
1.34 www 4969: }
4970:
4971: # ---------------------------------------------------------- Course Description
1.1118 foxr 4972: #
4973: #
1.34 www 4974:
4975: sub coursedescription {
1.731 albertel 4976: my ($courseid,$args)=@_;
1.34 www 4977: $courseid=~s/^\///;
1.49 www 4978: $courseid=~s/\_/\//g;
1.34 www 4979: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4980: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4981: my $normalid=$cdomain.'_'.$cnum;
4982: # need to always cache even if we get errors otherwise we keep
4983: # trying and trying and trying to get the course description.
4984: my %envhash=();
4985: my %returnhash=();
1.731 albertel 4986:
4987: my $expiretime=600;
4988: if ($env{'request.course.id'} eq $normalid) {
4989: $expiretime=120;
4990: }
4991:
4992: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4993: if (!$args->{'freshen_cache'}
4994: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4995: foreach my $key (keys(%env)) {
4996: next if ($key !~ /^\Q$prefix\E(.*)/);
4997: my ($setting) = $1;
4998: $returnhash{$setting} = $env{$key};
4999: }
5000: return %returnhash;
5001: }
5002:
1.1118 foxr 5003: # get the data again
5004:
1.731 albertel 5005: if (!$args->{'one_time'}) {
5006: $envhash{'course.'.$normalid.'.last_cache'}=time;
5007: }
1.811 albertel 5008:
1.34 www 5009: if ($chome ne 'no_host') {
1.302 albertel 5010: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 5011: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 5012: my $username = $env{'user.name'}; # Defult username
5013: if(defined $args->{'user'}) {
5014: $username = $args->{'user'};
5015: }
1.129 albertel 5016: $returnhash{'home'}= $chome;
5017: $returnhash{'domain'} = $cdomain;
5018: $returnhash{'num'} = $cnum;
1.741 raeburn 5019: if (!defined($returnhash{'type'})) {
5020: $returnhash{'type'} = 'Course';
5021: }
1.130 albertel 5022: while (my ($name,$value) = each %returnhash) {
1.53 www 5023: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 5024: }
1.270 www 5025: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 5026: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 5027: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 5028: $envhash{'course.'.$normalid.'.home'}=$chome;
5029: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
5030: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 5031: }
5032: }
1.731 albertel 5033: if (!$args->{'one_time'}) {
1.949 raeburn 5034: &appenv(\%envhash);
1.731 albertel 5035: }
1.302 albertel 5036: return %returnhash;
1.461 www 5037: }
5038:
1.1080 raeburn 5039: sub update_released_required {
5040: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
5041: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
5042: $cid = $env{'request.course.id'};
5043: $cdom = $env{'course.'.$cid.'.domain'};
5044: $cnum = $env{'course.'.$cid.'.num'};
5045: $chome = $env{'course.'.$cid.'.home'};
5046: }
5047: if ($needsrelease) {
5048: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
5049: my $needsupdate;
5050: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
5051: $needsupdate = 1;
5052: } else {
5053: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
5054: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
5055: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
5056: $needsupdate = 1;
5057: }
5058: }
5059: if ($needsupdate) {
5060: my %needshash = (
5061: 'internal.releaserequired' => $needsrelease,
5062: );
5063: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
5064: if ($putresult eq 'ok') {
5065: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
5066: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
5067: if (ref($crsinfo{$cid}) eq 'HASH') {
5068: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
5069: &courseidput($cdom,\%crsinfo,$chome,'notime');
5070: }
5071: }
5072: }
5073: }
5074: return;
5075: }
5076:
1.461 www 5077: # -------------------------------------------------See if a user is privileged
5078:
5079: sub privileged {
1.1219 raeburn 5080: my ($username,$domain,$possdomains,$possroles)=@_;
1.1170 droeschl 5081: my $now = time;
1.1219 raeburn 5082: my $roles;
5083: if (ref($possroles) eq 'ARRAY') {
5084: $roles = $possroles;
5085: } else {
5086: $roles = ['dc','su'];
5087: }
5088: if (ref($possdomains) eq 'ARRAY') {
5089: my %privileged = &privileged_by_domain($possdomains,$roles);
5090: foreach my $dom (@{$possdomains}) {
5091: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
5092: (ref($privileged{$dom}) eq 'HASH')) {
5093: foreach my $role (@{$roles}) {
5094: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5095: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
5096: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
5097: return 1 unless (($end && $end < $now) ||
5098: ($start && $start > $now));
5099: }
5100: }
5101: }
5102: }
5103: }
5104: } else {
5105: my %rolesdump = &dump("roles", $domain, $username) or return 0;
5106: my $now = time;
1.1170 droeschl 5107:
1.1275 musolffc 5108: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
1.1170 droeschl 5109: my ($trole, $tend, $tstart) = split(/_/, $role);
1.1219 raeburn 5110: if (grep(/^\Q$trole\E$/,@{$roles})) {
1.1170 droeschl 5111: return 1 unless ($tend && $tend < $now)
1.1219 raeburn 5112: or ($tstart && $tstart > $now);
1.1170 droeschl 5113: }
1.1219 raeburn 5114: }
5115: }
5116: return 0;
5117: }
1.1170 droeschl 5118:
1.1219 raeburn 5119: sub privileged_by_domain {
5120: my ($domains,$roles) = @_;
5121: my %privileged = ();
5122: my $cachetime = 60*60*24;
5123: my $now = time;
5124: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
5125: return %privileged;
5126: }
5127: foreach my $dom (@{$domains}) {
5128: next if (ref($privileged{$dom}) eq 'HASH');
5129: my $needroles;
5130: foreach my $role (@{$roles}) {
5131: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
5132: if (defined($cached)) {
5133: if (ref($result) eq 'HASH') {
5134: $privileged{$dom}{$role} = $result;
5135: }
5136: } else {
5137: $needroles = 1;
5138: }
5139: }
5140: if ($needroles) {
5141: my %dompersonnel = &get_domain_roles($dom,$roles);
5142: $privileged{$dom} = {};
5143: foreach my $server (keys(%dompersonnel)) {
5144: if (ref($dompersonnel{$server}) eq 'HASH') {
5145: foreach my $item (keys(%{$dompersonnel{$server}})) {
5146: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
5147: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
5148: next if ($end && $end < $now);
5149: $privileged{$dom}{$trole}{$uname.':'.$udom} =
5150: $dompersonnel{$server}{$item};
5151: }
5152: }
5153: }
5154: if (ref($privileged{$dom}) eq 'HASH') {
5155: foreach my $role (@{$roles}) {
5156: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5157: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
5158: } else {
5159: my %hash = ();
5160: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
5161: }
5162: }
5163: }
5164: }
5165: }
5166: return %privileged;
1.9 www 5167: }
1.1 albertel 5168:
1.103 harris41 5169: # -------------------------------------------------------- Get user privileges
1.11 www 5170:
5171: sub rolesinit {
1.1169 droeschl 5172: my ($domain, $username) = @_;
5173: my %userroles = ('user.login.time' => time);
5174: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
5175:
5176: # firstaccess and timerinterval are related to timed maps/resources.
5177: # also, blocking can be triggered by an activating timer
5178: # it's saved in the user's %env.
5179: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
5180: my %timerinterval = &dump('timerinterval', $domain, $username);
5181: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
5182: %timerintchk, %timerintenv);
5183:
1.1162 raeburn 5184: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 5185: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 5186: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
5187: }
1.1169 droeschl 5188:
1.1162 raeburn 5189: foreach my $key (keys(%timerinterval)) {
5190: my ($cid,$rest) = split(/\0/,$key);
5191: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
5192: }
1.1169 droeschl 5193:
1.11 www 5194: my %allroles=();
1.1162 raeburn 5195: my %allgroups=();
1.11 www 5196:
1.1274 raeburn 5197: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
1.1169 droeschl 5198: my $role = $rolesdump{$area};
5199: $area =~ s/\_\w\w$//;
5200:
5201: my ($trole, $tend, $tstart, $group_privs);
5202:
5203: if ($role =~ /^cr/) {
5204: # Custom role, defined by a user
5205: # e.g., user.role.cr/msu/smith/mynewrole
5206: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
5207: $trole = $1;
5208: ($tend, $tstart) = split('_', $2);
5209: } else {
5210: $trole = $role;
5211: }
5212: } elsif ($role =~ m|^gr/|) {
5213: # Role of member in a group, defined within a course/community
5214: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
5215: ($trole, $tend, $tstart) = split(/_/, $role);
5216: next if $tstart eq '-1';
5217: ($trole, $group_privs) = split(/\//, $trole);
5218: $group_privs = &unescape($group_privs);
5219: } else {
5220: # Just a normal role, defined in roles.tab
5221: ($trole, $tend, $tstart) = split(/_/,$role);
5222: }
5223:
5224: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
5225: $username);
5226: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
5227:
5228: # role expired or not available yet?
5229: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
5230: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
5231:
5232: next if $area eq '' or $trole eq '';
5233:
5234: my $spec = "$trole.$area";
5235: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5236:
5237: if ($trole =~ /^cr\//) {
5238: # Custom role, defined by a user
5239: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5240: } elsif ($trole eq 'gr') {
5241: # Role of a member in a group, defined within a course/community
5242: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5243: next;
5244: } else {
5245: # Normal role, defined in roles.tab
5246: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5247: }
5248:
5249: my $cid = $tdomain.'_'.$trest;
5250: unless ($firstaccchk{$cid}) {
5251: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
5252: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
5253: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
5254: $coursetimerstarts{$cid}{$item};
5255: }
5256: }
5257: $firstaccchk{$cid} = 1;
5258: }
5259: unless ($timerintchk{$cid}) {
5260: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
5261: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
5262: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
5263: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 5264: }
1.12 www 5265: }
1.1169 droeschl 5266: $timerintchk{$cid} = 1;
1.191 harris41 5267: }
1.11 www 5268: }
1.1169 droeschl 5269:
5270: @userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
5271: \%allroles, \%allgroups);
5272: $env{'user.adv'} = $userroles{'user.adv'};
5273:
1.1162 raeburn 5274: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 5275: }
5276:
1.567 raeburn 5277: sub set_arearole {
1.1215 raeburn 5278: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
5279: unless ($nolog) {
1.567 raeburn 5280: # log the associated role with the area
1.1215 raeburn 5281: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
5282: }
1.743 albertel 5283: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 5284: }
5285:
5286: sub custom_roleprivs {
5287: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
5288: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
1.1250 raeburn 5289: my $homsvr = &homeserver($rauthor,$rdomain);
1.838 albertel 5290: if (&hostname($homsvr) ne '') {
1.567 raeburn 5291: my ($rdummy,$roledef)=
5292: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
5293: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
5294: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
5295: if (defined($syspriv)) {
1.1043 raeburn 5296: if ($trest =~ /^$match_community$/) {
5297: $syspriv =~ s/bre\&S//;
5298: }
1.567 raeburn 5299: $$allroles{'cm./'}.=':'.$syspriv;
5300: $$allroles{$spec.'./'}.=':'.$syspriv;
5301: }
5302: if ($tdomain ne '') {
5303: if (defined($dompriv)) {
5304: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
5305: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
5306: }
5307: if (($trest ne '') && (defined($coursepriv))) {
5308: $$allroles{'cm.'.$area}.=':'.$coursepriv;
5309: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
5310: }
5311: }
5312: }
5313: }
5314: }
5315:
1.678 raeburn 5316: sub group_roleprivs {
5317: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
5318: my $access = 1;
5319: my $now = time;
5320: if (($tend!=0) && ($tend<$now)) { $access = 0; }
5321: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
5322: if ($access) {
1.811 albertel 5323: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 5324: $$allgroups{$course}{$group} .=':'.$group_privs;
5325: }
5326: }
1.567 raeburn 5327:
5328: sub standard_roleprivs {
5329: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
5330: if (defined($pr{$trole.':s'})) {
5331: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
5332: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
5333: }
5334: if ($tdomain ne '') {
5335: if (defined($pr{$trole.':d'})) {
5336: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5337: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5338: }
5339: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
5340: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
5341: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
5342: }
5343: }
5344: }
5345:
5346: sub set_userprivs {
1.1064 raeburn 5347: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 5348: my $author=0;
5349: my $adv=0;
1.678 raeburn 5350: my %grouproles = ();
5351: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 5352: my @groupkeys;
1.1000 raeburn 5353: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 5354: push(@groupkeys,$role);
5355: }
5356: if (ref($groups_roles) eq 'HASH') {
5357: foreach my $key (keys(%{$groups_roles})) {
5358: unless (grep(/^\Q$key\E$/,@groupkeys)) {
5359: push(@groupkeys,$key);
5360: }
5361: }
5362: }
5363: if (@groupkeys > 0) {
5364: foreach my $role (@groupkeys) {
5365: my ($trole,$area,$sec,$extendedarea);
5366: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
5367: $trole = $1;
5368: $area = $2;
5369: $sec = $3;
5370: $extendedarea = $area.$sec;
5371: if (exists($$allgroups{$area})) {
5372: foreach my $group (keys(%{$$allgroups{$area}})) {
5373: my $spec = $trole.'.'.$extendedarea;
5374: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 5375: $$allgroups{$area}{$group};
1.1064 raeburn 5376: }
1.678 raeburn 5377: }
5378: }
5379: }
5380: }
5381: }
1.800 albertel 5382: foreach my $group (keys(%grouproles)) {
5383: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 5384: }
1.800 albertel 5385: foreach my $role (keys(%{$allroles})) {
5386: my %thesepriv;
1.941 raeburn 5387: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 5388: foreach my $item (split(/:/,$$allroles{$role})) {
5389: if ($item ne '') {
5390: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 5391: if ($restrictions eq '') {
5392: $thesepriv{$privilege}='F';
5393: } elsif ($thesepriv{$privilege} ne 'F') {
5394: $thesepriv{$privilege}.=$restrictions;
5395: }
5396: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
5397: }
5398: }
5399: my $thesestr='';
1.1104 raeburn 5400: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 5401: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
5402: }
5403: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 5404: }
5405: return ($author,$adv);
5406: }
5407:
1.994 raeburn 5408: sub role_status {
1.1104 raeburn 5409: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 5410: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.1250 raeburn 5411: my ($one,$two) = split(m{\./},$rolekey,2);
5412: (undef,undef,$$role) = split(/\./,$one,3);
1.994 raeburn 5413: unless (!defined($$role) || $$role eq '') {
1.1251 raeburn 5414: $$where = '/'.$two;
1.994 raeburn 5415: $$trolecode=$$role.'.'.$$where;
5416: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
5417: $$tstatus='is';
1.1104 raeburn 5418: if ($$tstart && $$tstart>$update) {
1.994 raeburn 5419: $$tstatus='future';
1.1034 raeburn 5420: if ($$tstart<$now) {
5421: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 5422: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 5423: my (%allroles,%allgroups,$group_privs,
5424: %groups_roles,@rolecodes);
1.1002 raeburn 5425: my %userroles = (
5426: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
5427: );
1.1064 raeburn 5428: @rolecodes = ('cm');
1.1002 raeburn 5429: my $spec=$$role.'.'.$$where;
5430: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
5431: if ($$role =~ /^cr\//) {
5432: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 5433: push(@rolecodes,'cr');
1.1002 raeburn 5434: } elsif ($$role eq 'gr') {
1.1064 raeburn 5435: push(@rolecodes,$$role);
1.1002 raeburn 5436: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
5437: $env{'user.name'});
1.1064 raeburn 5438: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 5439: (undef,my $group_privs) = split(/\//,$trole);
5440: $group_privs = &unescape($group_privs);
5441: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 5442: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 5443: &get_groups_roles($tdomain,$trest,
5444: \%course_roles,\@rolecodes,
5445: \%groups_roles);
1.1002 raeburn 5446: } else {
1.1064 raeburn 5447: push(@rolecodes,$$role);
1.1002 raeburn 5448: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
5449: }
1.1064 raeburn 5450: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
5451: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 5452: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
5453: }
5454: }
1.1034 raeburn 5455: $$tstatus = 'is';
1.1002 raeburn 5456: }
1.994 raeburn 5457: }
5458: if ($$tend) {
1.1104 raeburn 5459: if ($$tend<$update) {
1.994 raeburn 5460: $$tstatus='expired';
5461: } elsif ($$tend<$now) {
5462: $$tstatus='will_not';
5463: }
5464: }
5465: }
5466: }
5467: }
5468:
1.1104 raeburn 5469: sub get_groups_roles {
5470: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
5471: return unless((ref($cdom_courseroles) eq 'HASH') &&
5472: (ref($rolecodes) eq 'ARRAY') &&
5473: (ref($groups_roles) eq 'HASH'));
5474: if (keys(%{$cdom_courseroles}) > 0) {
5475: my ($cnum) = ($rest =~ /^($match_courseid)/);
5476: if ($cdom ne '' && $cnum ne '') {
5477: foreach my $key (keys(%{$cdom_courseroles})) {
5478: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
5479: my $crsrole = $1;
5480: my $crssec = $2;
5481: if ($crsrole =~ /^cr/) {
5482: unless (grep(/^cr$/,@{$rolecodes})) {
5483: push(@{$rolecodes},'cr');
5484: }
5485: } else {
5486: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
5487: push(@{$rolecodes},$crsrole);
5488: }
5489: }
5490: my $rolekey = "$crsrole./$cdom/$cnum";
5491: if ($crssec ne '') {
5492: $rolekey .= "/$crssec";
5493: }
5494: $rolekey .= './';
5495: $groups_roles->{$rolekey} = $rolecodes;
5496: }
5497: }
5498: }
5499: }
5500: return;
5501: }
5502:
5503: sub delete_env_groupprivs {
5504: my ($where,$courseroles,$possroles) = @_;
5505: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
5506: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
5507: unless (ref($courseroles->{$udom}) eq 'HASH') {
5508: %{$courseroles->{$udom}} =
5509: &get_my_roles('','','userroles',['active'],
5510: $possroles,[$udom],1);
5511: }
5512: if (ref($courseroles->{$udom}) eq 'HASH') {
5513: foreach my $item (keys(%{$courseroles->{$udom}})) {
5514: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
5515: my $area = '/'.$cdom.'/'.$cnum;
5516: my $privkey = "user.priv.$crsrole.$area";
5517: if ($crssec ne '') {
5518: $privkey .= '/'.$crssec;
5519: }
5520: $privkey .= ".$area/$group";
5521: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
5522: }
5523: }
5524: return;
5525: }
5526:
1.994 raeburn 5527: sub check_adhoc_privs {
1.1104 raeburn 5528: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 5529: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1185 raeburn 5530: my $setprivs;
1.994 raeburn 5531: if ($env{$cckey}) {
5532: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 5533: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 5534: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 5535: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5536: $setprivs = 1;
1.994 raeburn 5537: }
5538: } else {
1.1088 raeburn 5539: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5540: $setprivs = 1;
1.994 raeburn 5541: }
1.1185 raeburn 5542: return $setprivs;
1.994 raeburn 5543: }
5544:
5545: sub set_adhoc_privileges {
5546: # role can be cc or ca
1.1088 raeburn 5547: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 5548: my $area = '/'.$dcdom.'/'.$pickedcourse;
5549: my $spec = $role.'.'.$area;
5550: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
1.1215 raeburn 5551: $env{'user.name'},1);
1.994 raeburn 5552: my %ccrole = ();
5553: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
5554: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
5555: &appenv(\%userroles,[$role,'cm']);
5556: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 5557: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
5558: &appenv( {'request.role' => $spec,
5559: 'request.role.domain' => $dcdom,
5560: 'request.course.sec' => ''
5561: }
5562: );
5563: my $tadv=0;
5564: if (&allowed('adv') eq 'F') { $tadv=1; }
5565: &appenv({'request.role.adv' => $tadv});
5566: }
1.994 raeburn 5567: }
5568:
1.12 www 5569: # --------------------------------------------------------------- get interface
5570:
5571: sub get {
1.131 albertel 5572: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5573: my $items='';
1.800 albertel 5574: foreach my $item (@$storearr) {
5575: $items.=&escape($item).'&';
1.191 harris41 5576: }
1.12 www 5577: $items=~s/\&$//;
1.620 albertel 5578: if (!$udomain) { $udomain=$env{'user.domain'}; }
5579: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 5580: my $uhome=&homeserver($uname,$udomain);
5581:
1.133 albertel 5582: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5583: my @pairs=split(/\&/,$rep);
1.273 albertel 5584: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
5585: return @pairs;
5586: }
1.15 www 5587: my %returnhash=();
1.42 www 5588: my $i=0;
1.800 albertel 5589: foreach my $item (@$storearr) {
5590: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5591: $i++;
1.191 harris41 5592: }
1.15 www 5593: return %returnhash;
1.27 www 5594: }
5595:
5596: # --------------------------------------------------------------- del interface
5597:
5598: sub del {
1.133 albertel 5599: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 5600: my $items='';
1.800 albertel 5601: foreach my $item (@$storearr) {
5602: $items.=&escape($item).'&';
1.191 harris41 5603: }
1.984 neumanie 5604:
1.27 www 5605: $items=~s/\&$//;
1.620 albertel 5606: if (!$udomain) { $udomain=$env{'user.domain'}; }
5607: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5608: my $uhome=&homeserver($uname,$udomain);
5609: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5610: }
5611:
5612: # -------------------------------------------------------------- dump interface
5613:
1.1180 droeschl 5614: sub unserialize {
5615: my ($rep, $escapedkeys) = @_;
5616:
5617: return {} if $rep =~ /^error/;
5618:
5619: my %returnhash=();
1.1252 raeburn 5620: foreach my $item (split(/\&/,$rep)) {
1.1180 droeschl 5621: my ($key, $value) = split(/=/, $item, 2);
5622: $key = unescape($key) unless $escapedkeys;
5623: next if $key =~ /^error: 2 /;
1.1252 raeburn 5624: $returnhash{$key} = &thaw_unescape($value);
1.1180 droeschl 5625: }
5626: #return %returnhash;
5627: return \%returnhash;
5628: }
5629:
5630: # see Lond::dump_with_regexp
5631: # if $escapedkeys hash keys won't get unescaped.
1.15 www 5632: sub dump {
1.1180 droeschl 5633: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 5634: if (!$udomain) { $udomain=$env{'user.domain'}; }
5635: if (!$uname) { $uname=$env{'user.name'}; }
5636: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 5637:
1.1266 raeburn 5638: if ($regexp) {
5639: $regexp=&escape($regexp);
5640: } else {
5641: $regexp='.';
5642: }
1.1180 droeschl 5643: if (grep { $_ eq $uhome } current_machine_ids()) {
5644: # user is hosted on this machine
1.1266 raeburn 5645: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
1.1226 raeburn 5646: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
1.1180 droeschl 5647: return %{unserialize($reply, $escapedkeys)};
5648: }
1.1166 raeburn 5649: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 5650: my @pairs=split(/\&/,$rep);
5651: my %returnhash=();
1.1098 foxr 5652: if (!($rep =~ /^error/ )) {
5653: foreach my $item (@pairs) {
5654: my ($key,$value)=split(/=/,$item,2);
1.1180 droeschl 5655: $key = unescape($key) unless $escapedkeys;
5656: #$key = &unescape($key);
1.1098 foxr 5657: next if ($key =~ /^error: 2 /);
5658: $returnhash{$key}=&thaw_unescape($value);
5659: }
1.755 albertel 5660: }
5661: return %returnhash;
1.407 www 5662: }
5663:
1.1098 foxr 5664:
1.717 albertel 5665: # --------------------------------------------------------- dumpstore interface
5666:
5667: sub dumpstore {
5668: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1180 droeschl 5669: # same as dump but keys must be escaped. They may contain colon separated
5670: # lists of values that may themself contain colons (e.g. symbs).
5671: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 5672: }
5673:
1.407 www 5674: # -------------------------------------------------------------- keys interface
5675:
5676: sub getkeys {
5677: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 5678: if (!$udomain) { $udomain=$env{'user.domain'}; }
5679: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 5680: my $uhome=&homeserver($uname,$udomain);
5681: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
5682: my @keyarray=();
1.800 albertel 5683: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 5684: next if ($key =~ /^error: 2 /);
1.800 albertel 5685: push(@keyarray,&unescape($key));
1.407 www 5686: }
5687: return @keyarray;
1.318 matthew 5688: }
5689:
1.319 matthew 5690: # --------------------------------------------------------------- currentdump
5691: sub currentdump {
1.328 matthew 5692: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 5693: $courseid = $env{'request.course.id'} if (! defined($courseid));
5694: $sdom = $env{'user.domain'} if (! defined($sdom));
5695: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 5696: my $uhome = &homeserver($sname,$sdom);
1.1180 droeschl 5697: my $rep;
5698:
5699: if (grep { $_ eq $uhome } current_machine_ids()) {
5700: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
5701: $courseid)));
5702: } else {
5703: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
5704: }
5705:
1.318 matthew 5706: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 5707: #
1.318 matthew 5708: my %returnhash=();
1.319 matthew 5709: #
5710: if ($rep eq "unknown_cmd") {
5711: # an old lond will not know currentdump
5712: # Do a dump and make it look like a currentdump
1.822 albertel 5713: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 5714: return if ($tmp[0] =~ /^(error:|no_such_host)/);
5715: my %hash = @tmp;
5716: @tmp=();
1.424 matthew 5717: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 5718: } else {
5719: my @pairs=split(/\&/,$rep);
1.800 albertel 5720: foreach my $pair (@pairs) {
5721: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 5722: my ($symb,$param) = split(/:/,$key);
5723: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 5724: &thaw_unescape($value);
1.319 matthew 5725: }
1.191 harris41 5726: }
1.12 www 5727: return %returnhash;
1.424 matthew 5728: }
5729:
5730: sub convert_dump_to_currentdump{
5731: my %hash = %{shift()};
5732: my %returnhash;
5733: # Code ripped from lond, essentially. The only difference
5734: # here is the unescaping done by lonnet::dump(). Conceivably
5735: # we might run in to problems with parameter names =~ /^v\./
5736: while (my ($key,$value) = each(%hash)) {
5737: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 5738: $symb = &unescape($symb);
5739: $param = &unescape($param);
1.424 matthew 5740: next if ($v eq 'version' || $symb eq 'keys');
5741: next if (exists($returnhash{$symb}) &&
5742: exists($returnhash{$symb}->{$param}) &&
5743: $returnhash{$symb}->{'v.'.$param} > $v);
5744: $returnhash{$symb}->{$param}=$value;
5745: $returnhash{$symb}->{'v.'.$param}=$v;
5746: }
5747: #
5748: # Remove all of the keys in the hashes which keep track of
5749: # the version of the parameter.
5750: while (my ($symb,$param_hash) = each(%returnhash)) {
5751: # use a foreach because we are going to delete from the hash.
5752: foreach my $key (keys(%$param_hash)) {
5753: delete($param_hash->{$key}) if ($key =~ /^v\./);
5754: }
5755: }
5756: return \%returnhash;
1.12 www 5757: }
5758:
1.627 albertel 5759: # ------------------------------------------------------ critical inc interface
5760:
5761: sub cinc {
5762: return &inc(@_,'critical');
5763: }
5764:
1.449 matthew 5765: # --------------------------------------------------------------- inc interface
5766:
5767: sub inc {
1.627 albertel 5768: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 5769: if (!$udomain) { $udomain=$env{'user.domain'}; }
5770: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 5771: my $uhome=&homeserver($uname,$udomain);
5772: my $items='';
5773: if (! ref($store)) {
5774: # got a single value, so use that instead
5775: $items = &escape($store).'=&';
5776: } elsif (ref($store) eq 'SCALAR') {
5777: $items = &escape($$store).'=&';
5778: } elsif (ref($store) eq 'ARRAY') {
5779: $items = join('=&',map {&escape($_);} @{$store});
5780: } elsif (ref($store) eq 'HASH') {
5781: while (my($key,$value) = each(%{$store})) {
5782: $items.= &escape($key).'='.&escape($value).'&';
5783: }
5784: }
5785: $items=~s/\&$//;
1.627 albertel 5786: if ($critical) {
5787: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
5788: } else {
5789: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
5790: }
1.449 matthew 5791: }
5792:
1.12 www 5793: # --------------------------------------------------------------- put interface
5794:
5795: sub put {
1.134 albertel 5796: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5797: if (!$udomain) { $udomain=$env{'user.domain'}; }
5798: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5799: my $uhome=&homeserver($uname,$udomain);
1.12 www 5800: my $items='';
1.800 albertel 5801: foreach my $item (keys(%$storehash)) {
5802: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5803: }
1.12 www 5804: $items=~s/\&$//;
1.134 albertel 5805: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 5806: }
5807:
1.631 albertel 5808: # ------------------------------------------------------------ newput interface
5809:
5810: sub newput {
5811: my ($namespace,$storehash,$udomain,$uname)=@_;
5812: if (!$udomain) { $udomain=$env{'user.domain'}; }
5813: if (!$uname) { $uname=$env{'user.name'}; }
5814: my $uhome=&homeserver($uname,$udomain);
5815: my $items='';
5816: foreach my $key (keys(%$storehash)) {
5817: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
5818: }
5819: $items=~s/\&$//;
5820: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
5821: }
5822:
5823: # --------------------------------------------------------- putstore interface
5824:
1.524 raeburn 5825: sub putstore {
1.1269 raeburn 5826: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
1.620 albertel 5827: if (!$udomain) { $udomain=$env{'user.domain'}; }
5828: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 5829: my $uhome=&homeserver($uname,$udomain);
5830: my $items='';
1.715 albertel 5831: foreach my $key (keys(%$storehash)) {
5832: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 5833: }
1.715 albertel 5834: $items=~s/\&$//;
1.716 albertel 5835: my $esc_symb=&escape($symb);
5836: my $esc_v=&escape($version);
1.715 albertel 5837: my $reply =
1.716 albertel 5838: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 5839: $uhome);
1.1269 raeburn 5840: if (($tolog) && ($reply eq 'ok')) {
5841: my $namevalue='';
5842: foreach my $key (keys(%{$storehash})) {
5843: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
5844: }
5845: $namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
5846: '&host='.&escape($perlvar{'lonHostID'}).
5847: '&version='.$esc_v.
5848: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
5849: &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
5850: }
1.715 albertel 5851: if ($reply eq 'unknown_cmd') {
1.716 albertel 5852: # gfall back to way things use to be done
1.715 albertel 5853: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
5854: $uname);
1.524 raeburn 5855: }
1.715 albertel 5856: return $reply;
5857: }
5858:
5859: sub old_putstore {
1.716 albertel 5860: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
5861: if (!$udomain) { $udomain=$env{'user.domain'}; }
5862: if (!$uname) { $uname=$env{'user.name'}; }
5863: my $uhome=&homeserver($uname,$udomain);
5864: my %newstorehash;
1.800 albertel 5865: foreach my $item (keys(%$storehash)) {
5866: my $key = $version.':'.&escape($symb).':'.$item;
5867: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 5868: }
5869: my $items='';
5870: my %allitems = ();
1.800 albertel 5871: foreach my $item (keys(%newstorehash)) {
5872: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 5873: my $key = $1.':keys:'.$2;
5874: $allitems{$key} .= $3.':';
5875: }
1.800 albertel 5876: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 5877: }
1.800 albertel 5878: foreach my $item (keys(%allitems)) {
5879: $allitems{$item} =~ s/\:$//;
5880: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 5881: }
5882: $items=~s/\&$//;
5883: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 5884: }
5885:
1.47 www 5886: # ------------------------------------------------------ critical put interface
5887:
5888: sub cput {
1.134 albertel 5889: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5890: if (!$udomain) { $udomain=$env{'user.domain'}; }
5891: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5892: my $uhome=&homeserver($uname,$udomain);
1.47 www 5893: my $items='';
1.800 albertel 5894: foreach my $item (keys(%$storehash)) {
5895: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5896: }
1.47 www 5897: $items=~s/\&$//;
1.134 albertel 5898: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5899: }
5900:
5901: # -------------------------------------------------------------- eget interface
5902:
5903: sub eget {
1.133 albertel 5904: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5905: my $items='';
1.800 albertel 5906: foreach my $item (@$storearr) {
5907: $items.=&escape($item).'&';
1.191 harris41 5908: }
1.12 www 5909: $items=~s/\&$//;
1.620 albertel 5910: if (!$udomain) { $udomain=$env{'user.domain'}; }
5911: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5912: my $uhome=&homeserver($uname,$udomain);
5913: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5914: my @pairs=split(/\&/,$rep);
5915: my %returnhash=();
1.42 www 5916: my $i=0;
1.800 albertel 5917: foreach my $item (@$storearr) {
5918: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5919: $i++;
1.191 harris41 5920: }
1.12 www 5921: return %returnhash;
5922: }
5923:
1.667 albertel 5924: # ------------------------------------------------------------ tmpput interface
5925: sub tmpput {
1.802 raeburn 5926: my ($storehash,$server,$context)=@_;
1.667 albertel 5927: my $items='';
1.800 albertel 5928: foreach my $item (keys(%$storehash)) {
5929: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 5930: }
5931: $items=~s/\&$//;
1.802 raeburn 5932: if (defined($context)) {
5933: $items .= ':'.&escape($context);
5934: }
1.667 albertel 5935: return &reply("tmpput:$items",$server);
5936: }
5937:
5938: # ------------------------------------------------------------ tmpget interface
5939: sub tmpget {
1.688 albertel 5940: my ($token,$server)=@_;
5941: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5942: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 5943: my %returnhash;
5944: foreach my $item (split(/\&/,$rep)) {
5945: my ($key,$value)=split(/=/,$item);
1.951 raeburn 5946: next if ($key =~ /^error: 2 /);
1.667 albertel 5947: $returnhash{&unescape($key)}=&thaw_unescape($value);
5948: }
5949: return %returnhash;
5950: }
5951:
1.1113 raeburn 5952: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 5953: sub tmpdel {
5954: my ($token,$server)=@_;
5955: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5956: return &reply("tmpdel:$token",$server);
5957: }
5958:
1.1198 raeburn 5959: # ------------------------------------------------------------ get_timebased_id
5960:
5961: sub get_timebased_id {
5962: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
5963: $maxtries) = @_;
5964: my ($newid,$error,$dellock);
5965: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
5966: return ('','ok','invalid call to get suffix');
5967: }
5968:
5969: # set defaults for any optional args for which values were not supplied
5970: if ($who eq '') {
5971: $who = $env{'user.name'}.':'.$env{'user.domain'};
5972: }
5973: if (!$locktries) {
5974: $locktries = 3;
5975: }
5976: if (!$maxtries) {
5977: $maxtries = 10;
5978: }
5979:
5980: if (($cdom eq '') || ($cnum eq '')) {
5981: if ($env{'request.course.id'}) {
5982: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5983: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5984: }
5985: if (($cdom eq '') || ($cnum eq '')) {
5986: return ('','ok','call to get suffix not in course context');
5987: }
5988: }
5989:
5990: # construct locking item
5991: my $lockhash = {
5992: $prefix."\0".'locked_'.$keyid => $who,
5993: };
5994: my $tries = 0;
5995:
5996: # attempt to get lock on nohist_$namespace file
5997: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5998: while (($gotlock ne 'ok') && $tries <$locktries) {
5999: $tries ++;
6000: sleep 1;
6001: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
6002: }
6003:
6004: # attempt to get unique identifier, based on current timestamp
6005: if ($gotlock eq 'ok') {
6006: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
6007: my $id = time;
6008: $newid = $id;
1.1268 raeburn 6009: if ($idtype eq 'addcode') {
6010: $newid .= &sixnum_code();
6011: }
1.1198 raeburn 6012: my $idtries = 0;
6013: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
6014: if ($idtype eq 'concat') {
6015: $newid = $id.$idtries;
1.1268 raeburn 6016: } elsif ($idtype eq 'addcode') {
6017: $newid = $newid.&sixnum_code();
1.1198 raeburn 6018: } else {
6019: $newid ++;
6020: }
6021: $idtries ++;
6022: }
6023: if (!exists($inuse{$prefix."\0".$newid})) {
6024: my %new_item = (
6025: $prefix."\0".$newid => $who,
6026: );
6027: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
6028: $cdom,$cnum);
6029: if ($putresult ne 'ok') {
6030: undef($newid);
6031: $error = 'error saving new item: '.$putresult;
6032: }
6033: } else {
1.1268 raeburn 6034: undef($newid);
1.1198 raeburn 6035: $error = ('error: no unique suffix available for the new item ');
6036: }
6037: # remove lock
6038: my @del_lock = ($prefix."\0".'locked_'.$keyid);
6039: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
6040: } else {
6041: $error = "error: could not obtain lockfile\n";
6042: $dellock = 'ok';
1.1276 ! raeburn 6043: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
! 6044: $dellock = 'nolock';
! 6045: }
1.1198 raeburn 6046: }
6047: return ($newid,$dellock,$error);
6048: }
6049:
1.1268 raeburn 6050: sub sixnum_code {
6051: my $code;
6052: for (0..6) {
6053: $code .= int( rand(9) );
6054: }
6055: return $code;
6056: }
6057:
1.765 albertel 6058: # -------------------------------------------------- portfolio access checking
6059:
6060: sub portfolio_access {
1.1270 raeburn 6061: my ($requrl,$clientip) = @_;
1.765 albertel 6062: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
1.1270 raeburn 6063: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
1.814 raeburn 6064: if ($result) {
6065: my %setters;
6066: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6067: my ($startblock,$endblock) =
6068: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
6069: if ($startblock && $endblock) {
6070: return 'B';
6071: }
6072: } else {
6073: my ($startblock,$endblock) =
6074: &Apache::loncommon::blockcheck(\%setters,'port');
6075: if ($startblock && $endblock) {
6076: return 'B';
6077: }
6078: }
6079: }
1.765 albertel 6080: if ($result eq 'ok') {
1.766 albertel 6081: return 'F';
1.765 albertel 6082: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 6083: return 'A';
1.765 albertel 6084: }
1.766 albertel 6085: return '';
1.765 albertel 6086: }
6087:
6088: sub get_portfolio_access {
1.1270 raeburn 6089: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;
1.767 albertel 6090:
6091: if (!ref($access_hash)) {
6092: my $current_perms = &get_portfile_permissions($udom,$unum);
6093: my %access_controls = &get_access_controls($current_perms,$group,
6094: $file_name);
6095: $access_hash = $access_controls{$file_name};
6096: }
6097:
1.1270 raeburn 6098: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
1.765 albertel 6099: my $now = time;
6100: if (ref($access_hash) eq 'HASH') {
6101: foreach my $key (keys(%{$access_hash})) {
6102: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6103: if ($start > $now) {
6104: next;
6105: }
6106: if ($end && $end<$now) {
6107: next;
6108: }
6109: if ($scope eq 'public') {
6110: $public = $key;
6111: last;
6112: } elsif ($scope eq 'guest') {
6113: $guest = $key;
6114: } elsif ($scope eq 'domains') {
6115: push(@domains,$key);
6116: } elsif ($scope eq 'users') {
6117: push(@users,$key);
6118: } elsif ($scope eq 'course') {
6119: push(@courses,$key);
6120: } elsif ($scope eq 'group') {
6121: push(@groups,$key);
1.1270 raeburn 6122: } elsif ($scope eq 'ip') {
6123: push(@ips,$key);
1.765 albertel 6124: }
6125: }
6126: if ($public) {
6127: return 'ok';
1.1270 raeburn 6128: } elsif (@ips > 0) {
6129: my $allowed;
6130: foreach my $ipkey (@ips) {
6131: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
6132: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
6133: $allowed = 1;
6134: last;
6135: }
6136: }
6137: }
6138: if ($allowed) {
6139: return 'ok';
6140: }
1.765 albertel 6141: }
6142: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6143: if ($guest) {
6144: return $guest;
6145: }
6146: } else {
6147: if (@domains > 0) {
6148: foreach my $domkey (@domains) {
6149: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
6150: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
6151: return 'ok';
6152: }
6153: }
6154: }
6155: }
6156: if (@users > 0) {
6157: foreach my $userkey (@users) {
1.865 raeburn 6158: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
6159: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
6160: if (ref($item) eq 'HASH') {
6161: if (($item->{'uname'} eq $env{'user.name'}) &&
6162: ($item->{'udom'} eq $env{'user.domain'})) {
6163: return 'ok';
6164: }
6165: }
6166: }
6167: }
1.765 albertel 6168: }
6169: }
6170: my %roleshash;
6171: my @courses_and_groups = @courses;
6172: push(@courses_and_groups,@groups);
6173: if (@courses_and_groups > 0) {
6174: my (%allgroups,%allroles);
6175: my ($start,$end,$role,$sec,$group);
6176: foreach my $envkey (%env) {
1.1060 raeburn 6177: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 6178: my $cid = $2.'_'.$3;
6179: if ($1 eq 'gr') {
6180: $group = $4;
6181: $allgroups{$cid}{$group} = $env{$envkey};
6182: } else {
6183: if ($4 eq '') {
6184: $sec = 'none';
6185: } else {
6186: $sec = $4;
6187: }
6188: $allroles{$cid}{$1}{$sec} = $env{$envkey};
6189: }
1.811 albertel 6190: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 6191: my $cid = $2.'_'.$3;
6192: if ($4 eq '') {
6193: $sec = 'none';
6194: } else {
6195: $sec = $4;
6196: }
6197: $allroles{$cid}{$1}{$sec} = $env{$envkey};
6198: }
6199: }
6200: if (keys(%allroles) == 0) {
6201: return;
6202: }
6203: foreach my $key (@courses_and_groups) {
6204: my %content = %{$$access_hash{$key}};
6205: my $cnum = $content{'number'};
6206: my $cdom = $content{'domain'};
6207: my $cid = $cdom.'_'.$cnum;
6208: if (!exists($allroles{$cid})) {
6209: next;
6210: }
6211: foreach my $role_id (keys(%{$content{'roles'}})) {
6212: my @sections = @{$content{'roles'}{$role_id}{'section'}};
6213: my @groups = @{$content{'roles'}{$role_id}{'group'}};
6214: my @status = @{$content{'roles'}{$role_id}{'access'}};
6215: my @roles = @{$content{'roles'}{$role_id}{'role'}};
6216: foreach my $role (keys(%{$allroles{$cid}})) {
6217: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
6218: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
6219: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
6220: if (grep/^all$/,@sections) {
6221: return 'ok';
6222: } else {
6223: if (grep/^$sec$/,@sections) {
6224: return 'ok';
6225: }
6226: }
6227: }
6228: }
6229: if (keys(%{$allgroups{$cid}}) == 0) {
6230: if (grep/^none$/,@groups) {
6231: return 'ok';
6232: }
6233: } else {
6234: if (grep/^all$/,@groups) {
6235: return 'ok';
6236: }
6237: foreach my $group (keys(%{$allgroups{$cid}})) {
6238: if (grep/^$group$/,@groups) {
6239: return 'ok';
6240: }
6241: }
6242: }
6243: }
6244: }
6245: }
6246: }
6247: }
6248: if ($guest) {
6249: return $guest;
6250: }
6251: }
6252: }
6253: return;
6254: }
6255:
6256: sub course_group_datechecker {
6257: my ($dates,$now,$status) = @_;
6258: my ($start,$end) = split(/\./,$dates);
6259: if (!$start && !$end) {
6260: return 'ok';
6261: }
6262: if (grep/^active$/,@{$status}) {
6263: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
6264: return 'ok';
6265: }
6266: }
6267: if (grep/^previous$/,@{$status}) {
6268: if ($end > $now ) {
6269: return 'ok';
6270: }
6271: }
6272: if (grep/^future$/,@{$status}) {
6273: if ($start > $now) {
6274: return 'ok';
6275: }
6276: }
6277: return;
6278: }
6279:
6280: sub parse_portfolio_url {
6281: my ($url) = @_;
6282:
6283: my ($type,$udom,$unum,$group,$file_name);
6284:
1.823 albertel 6285: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 6286: $type = 1;
6287: $udom = $1;
6288: $unum = $2;
6289: $file_name = $3;
1.823 albertel 6290: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 6291: $type = 2;
6292: $udom = $1;
6293: $unum = $2;
6294: $group = $3;
6295: $file_name = $3.'/'.$4;
6296: }
6297: if (wantarray) {
6298: return ($type,$udom,$unum,$file_name,$group);
6299: }
6300: return $type;
6301: }
6302:
6303: sub is_portfolio_url {
6304: my ($url) = @_;
6305: return scalar(&parse_portfolio_url($url));
6306: }
6307:
1.798 raeburn 6308: sub is_portfolio_file {
6309: my ($file) = @_;
1.820 raeburn 6310: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 6311: return 1;
6312: }
6313: return;
6314: }
6315:
1.976 raeburn 6316: sub usertools_access {
1.1084 raeburn 6317: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 6318: my ($access,%tools);
6319: if ($context eq '') {
6320: $context = 'tools';
6321: }
6322: if ($context eq 'requestcourses') {
6323: %tools = (
6324: official => 1,
6325: unofficial => 1,
1.1006 raeburn 6326: community => 1,
1.1246 raeburn 6327: textbook => 1,
1.985 raeburn 6328: );
1.1183 raeburn 6329: } elsif ($context eq 'requestauthor') {
6330: %tools = (
6331: requestauthor => 1,
6332: );
1.985 raeburn 6333: } else {
6334: %tools = (
6335: aboutme => 1,
6336: blog => 1,
1.1177 raeburn 6337: webdav => 1,
1.985 raeburn 6338: portfolio => 1,
6339: );
6340: }
1.976 raeburn 6341: return if (!defined($tools{$tool}));
6342:
1.1242 raeburn 6343: if (($udom eq '') || ($uname eq '')) {
1.976 raeburn 6344: $udom = $env{'user.domain'};
6345: $uname = $env{'user.name'};
6346: }
6347:
1.978 raeburn 6348: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6349: if ($action ne 'reload') {
1.985 raeburn 6350: if ($context eq 'requestcourses') {
6351: return $env{'environment.canrequest.'.$tool};
1.1183 raeburn 6352: } elsif ($context eq 'requestauthor') {
6353: return $env{'environment.canrequest.author'};
1.985 raeburn 6354: } else {
6355: return $env{'environment.availabletools.'.$tool};
6356: }
6357: }
1.976 raeburn 6358: }
6359:
1.1183 raeburn 6360: my ($toolstatus,$inststatus,$envkey);
6361: if ($context eq 'requestauthor') {
6362: $envkey = $context;
6363: } else {
6364: $envkey = $context.'.'.$tool;
6365: }
1.976 raeburn 6366:
1.985 raeburn 6367: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
6368: ($action ne 'reload')) {
1.1183 raeburn 6369: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 6370: $inststatus = $env{'environment.inststatus'};
6371: } else {
1.1084 raeburn 6372: if (ref($userenvref) eq 'HASH') {
1.1183 raeburn 6373: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 6374: $inststatus = $userenvref->{'inststatus'};
6375: } else {
1.1183 raeburn 6376: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
6377: $toolstatus = $userenv{$envkey};
1.1084 raeburn 6378: $inststatus = $userenv{'inststatus'};
6379: }
1.976 raeburn 6380: }
6381:
6382: if ($toolstatus ne '') {
6383: if ($toolstatus) {
6384: $access = 1;
6385: } else {
6386: $access = 0;
6387: }
6388: return $access;
6389: }
6390:
1.1084 raeburn 6391: my ($is_adv,%domdef);
6392: if (ref($is_advref) eq 'HASH') {
6393: $is_adv = $is_advref->{'is_adv'};
6394: } else {
6395: $is_adv = &is_advanced_user($udom,$uname);
6396: }
6397: if (ref($domdefref) eq 'HASH') {
6398: %domdef = %{$domdefref};
6399: } else {
6400: %domdef = &get_domain_defaults($udom);
6401: }
1.976 raeburn 6402: if (ref($domdef{$tool}) eq 'HASH') {
6403: if ($is_adv) {
6404: if ($domdef{$tool}{'_LC_adv'} ne '') {
6405: if ($domdef{$tool}{'_LC_adv'}) {
6406: $access = 1;
6407: } else {
6408: $access = 0;
6409: }
6410: return $access;
6411: }
6412: }
6413: if ($inststatus ne '') {
6414: my ($hasaccess,$hasnoaccess);
6415: foreach my $affiliation (split(/:/,$inststatus)) {
6416: if ($domdef{$tool}{$affiliation} ne '') {
6417: if ($domdef{$tool}{$affiliation}) {
6418: $hasaccess = 1;
6419: } else {
6420: $hasnoaccess = 1;
6421: }
6422: }
6423: }
6424: if ($hasaccess || $hasnoaccess) {
6425: if ($hasaccess) {
6426: $access = 1;
6427: } elsif ($hasnoaccess) {
6428: $access = 0;
6429: }
6430: return $access;
6431: }
6432: } else {
6433: if ($domdef{$tool}{'default'} ne '') {
6434: if ($domdef{$tool}{'default'}) {
6435: $access = 1;
6436: } elsif ($domdef{$tool}{'default'} == 0) {
6437: $access = 0;
6438: }
6439: return $access;
6440: }
6441: }
6442: } else {
1.1177 raeburn 6443: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 6444: $access = 1;
6445: } else {
6446: $access = 0;
6447: }
1.976 raeburn 6448: return $access;
6449: }
6450: }
6451:
1.1050 raeburn 6452: sub is_course_owner {
6453: my ($cdom,$cnum,$udom,$uname) = @_;
6454: if (($udom eq '') || ($uname eq '')) {
6455: $udom = $env{'user.domain'};
6456: $uname = $env{'user.name'};
6457: }
6458: unless (($udom eq '') || ($uname eq '')) {
6459: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
6460: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
6461: return 1;
6462: } else {
6463: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
6464: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
6465: return 1;
6466: }
6467: }
6468: }
6469: }
6470: return;
6471: }
6472:
1.976 raeburn 6473: sub is_advanced_user {
6474: my ($udom,$uname) = @_;
1.1085 raeburn 6475: if ($udom ne '' && $uname ne '') {
6476: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 6477: if (wantarray) {
6478: return ($env{'user.adv'},$env{'user.author'});
6479: } else {
6480: return $env{'user.adv'};
6481: }
1.1085 raeburn 6482: }
6483: }
1.976 raeburn 6484: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
6485: my %allroles;
1.1128 raeburn 6486: my ($is_adv,$is_author);
1.976 raeburn 6487: foreach my $role (keys(%roleshash)) {
6488: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
6489: my $area = '/'.$tdomain.'/'.$trest;
6490: if ($sec ne '') {
6491: $area .= '/'.$sec;
6492: }
6493: if (($area ne '') && ($trole ne '')) {
6494: my $spec=$trole.'.'.$area;
6495: if ($trole =~ /^cr\//) {
6496: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
6497: } elsif ($trole ne 'gr') {
6498: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
6499: }
1.1128 raeburn 6500: if ($trole eq 'au') {
6501: $is_author = 1;
6502: }
1.976 raeburn 6503: }
6504: }
6505: foreach my $role (keys(%allroles)) {
6506: last if ($is_adv);
6507: foreach my $item (split(/:/,$allroles{$role})) {
6508: if ($item ne '') {
6509: my ($privilege,$restrictions)=split(/&/,$item);
6510: if ($privilege eq 'adv') {
6511: $is_adv = 1;
6512: last;
6513: }
6514: }
6515: }
6516: }
1.1128 raeburn 6517: if (wantarray) {
6518: return ($is_adv,$is_author);
6519: }
1.976 raeburn 6520: return $is_adv;
6521: }
1.798 raeburn 6522:
1.1035 raeburn 6523: sub check_can_request {
1.1036 raeburn 6524: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 6525: my $canreq = 0;
6526: my ($types,$typename) = &Apache::loncommon::course_types();
6527: my @options = ('approval','validate','autolimit');
6528: my $optregex = join('|',@options);
6529: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
6530: foreach my $type (@{$types}) {
6531: if (&usertools_access($env{'user.name'},
6532: $env{'user.domain'},
6533: $type,undef,'requestcourses')) {
6534: $canreq ++;
1.1036 raeburn 6535: if (ref($request_domains) eq 'HASH') {
6536: push(@{$request_domains->{$type}},$env{'user.domain'});
6537: }
1.1035 raeburn 6538: if ($dom eq $env{'user.domain'}) {
6539: $can_request->{$type} = 1;
6540: }
6541: }
6542: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
6543: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
6544: if (@curr > 0) {
1.1036 raeburn 6545: foreach my $item (@curr) {
6546: if (ref($request_domains) eq 'HASH') {
6547: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
6548: if ($otherdom ne '') {
6549: if (ref($request_domains->{$type}) eq 'ARRAY') {
6550: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
6551: push(@{$request_domains->{$type}},$otherdom);
6552: }
6553: } else {
6554: push(@{$request_domains->{$type}},$otherdom);
6555: }
6556: }
6557: }
6558: }
6559: unless($dom eq $env{'user.domain'}) {
6560: $canreq ++;
1.1035 raeburn 6561: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
6562: $can_request->{$type} = 1;
6563: }
6564: }
6565: }
6566: }
6567: }
6568: }
6569: return $canreq;
6570: }
6571:
1.341 www 6572: # ---------------------------------------------- Custom access rule evaluation
6573:
6574: sub customaccess {
6575: my ($priv,$uri)=@_;
1.807 albertel 6576: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 6577: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 6578: $udom = &LONCAPA::clean_domain($udom);
6579: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 6580: my $access=0;
1.800 albertel 6581: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 6582: my ($effect,$realm,$role,$type)=split(/\:/,$right);
6583: if ($type eq 'user') {
6584: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 6585: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 6586: if ($tdom) {
6587: if ($tdom ne $env{'user.domain'}) { next; }
6588: }
1.896 albertel 6589: if ($tuname) {
6590: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 6591: }
6592: $access=($effect eq 'allow');
6593: last;
6594: }
6595: } else {
6596: if ($role) {
6597: if ($role ne $urole) { next; }
6598: }
6599: foreach my $scope (split(/\s*\,\s*/,$realm)) {
6600: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
6601: if ($tdom) {
6602: if ($tdom ne $udom) { next; }
6603: }
6604: if ($tcrs) {
6605: if ($tcrs ne $ucrs) { next; }
6606: }
6607: if ($tsec) {
6608: if ($tsec ne $usec) { next; }
6609: }
6610: $access=($effect eq 'allow');
6611: last;
6612: }
6613: if ($realm eq '' && $role eq '') {
6614: $access=($effect eq 'allow');
6615: }
1.402 bowersj2 6616: }
1.341 www 6617: }
6618: return $access;
6619: }
6620:
1.103 harris41 6621: # ------------------------------------------------- Check for a user privilege
1.12 www 6622:
6623: sub allowed {
1.1270 raeburn 6624: my ($priv,$uri,$symb,$role,$clientip)=@_;
1.705 albertel 6625: my $ver_orguri=$uri;
1.439 www 6626: $uri=&deversion($uri);
1.152 www 6627: my $orguri=$uri;
1.52 www 6628: $uri=&declutter($uri);
1.809 raeburn 6629:
1.810 raeburn 6630: if ($priv eq 'evb') {
6631: # Evade communication block restrictions for specified role in a course
6632: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
6633: return $1;
6634: } else {
6635: return;
6636: }
6637: }
6638:
1.620 albertel 6639: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 6640: # Free bre access to adm and meta resources
1.775 albertel 6641: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 6642: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
6643: && ($priv eq 'bre')) {
1.14 www 6644: return 'F';
1.159 www 6645: }
6646:
1.545 banghart 6647: # Free bre access to user's own portfolio contents
1.714 raeburn 6648: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 6649: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 6650: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 6651: my %setters;
6652: my ($startblock,$endblock) =
6653: &Apache::loncommon::blockcheck(\%setters,'port');
6654: if ($startblock && $endblock) {
6655: return 'B';
6656: } else {
6657: return 'F';
6658: }
1.545 banghart 6659: }
6660:
1.762 raeburn 6661: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 6662: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
6663: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
6664: if (exists($env{'request.course.id'})) {
6665: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6666: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6667: if (($domain eq $cdom) && ($name eq $cnum)) {
6668: my $courseprivid=$env{'request.course.id'};
6669: $courseprivid=~s/\_/\//;
6670: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
6671: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
6672: return $1;
1.762 raeburn 6673: } else {
6674: if ($env{'request.course.sec'}) {
6675: $courseprivid.='/'.$env{'request.course.sec'};
6676: }
6677: if ($env{'user.priv.'.$env{'request.role'}.'./'.
6678: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
6679: return $2;
6680: }
1.714 raeburn 6681: }
6682: }
6683: }
6684: }
6685:
1.159 www 6686: # Free bre to public access
6687:
6688: if ($priv eq 'bre') {
1.238 www 6689: my $copyright=&metadata($uri,'copyright');
1.620 albertel 6690: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 6691: return 'F';
6692: }
1.238 www 6693: if ($copyright eq 'priv') {
6694: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6695: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 6696: return '';
6697: }
6698: }
6699: if ($copyright eq 'domain') {
6700: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6701: unless (($env{'user.domain'} eq $1) ||
6702: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 6703: return '';
6704: }
1.262 matthew 6705: }
1.620 albertel 6706: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 6707: # Library role, so allow browsing of resources in this domain.
6708: return 'F';
1.238 www 6709: }
1.341 www 6710: if ($copyright eq 'custom') {
6711: unless (&customaccess($priv,$uri)) { return ''; }
6712: }
1.14 www 6713: }
1.264 matthew 6714: # Domain coordinator is trying to create a course
1.620 albertel 6715: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 6716: # uri is the requested domain in this case.
6717: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 6718: # a role of dc for the domain in question.
1.620 albertel 6719: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 6720: }
1.29 www 6721:
1.52 www 6722: my $thisallowed='';
6723: my $statecond=0;
6724: my $courseprivid='';
6725:
1.1039 raeburn 6726: my $ownaccess;
1.1043 raeburn 6727: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 6728: if (($priv eq 'bro') && ($env{'user.author'})) {
6729: if ($uri eq '') {
6730: $ownaccess = 1;
6731: } else {
6732: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
6733: my $udom = $env{'user.domain'};
6734: my $uname = $env{'user.name'};
6735: if ($uri =~ m{^\Q$udom\E/?$}) {
6736: $ownaccess = 1;
1.1040 raeburn 6737: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 6738: unless ($uri =~ m{\.\./}) {
6739: $ownaccess = 1;
6740: }
6741: } elsif (($udom ne 'public') && ($uname ne 'public')) {
6742: my $now = time;
6743: if ($uri =~ m{^([^/]+)/?$}) {
6744: my $adom = $1;
6745: foreach my $key (keys(%env)) {
1.1042 raeburn 6746: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 6747: my ($start,$end) = split('.',$env{$key});
6748: if (($now >= $start) && (!$end || $end < $now)) {
6749: $ownaccess = 1;
6750: last;
6751: }
6752: }
6753: }
6754: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
6755: my $adom = $1;
6756: my $aname = $2;
1.1042 raeburn 6757: foreach my $role ('ca','aa') {
6758: if ($env{"user.role.$role./$adom/$aname"}) {
6759: my ($start,$end) =
6760: split('.',$env{"user.role.$role./$adom/$aname"});
6761: if (($now >= $start) && (!$end || $end < $now)) {
6762: $ownaccess = 1;
6763: last;
6764: }
1.1039 raeburn 6765: }
6766: }
6767: }
6768: }
6769: }
6770: }
6771: }
6772:
1.52 www 6773: # Course
6774:
1.620 albertel 6775: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6776: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6777: $thisallowed.=$1;
6778: }
1.52 www 6779: }
1.29 www 6780:
1.52 www 6781: # Domain
6782:
1.620 albertel 6783: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 6784: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6785: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6786: $thisallowed.=$1;
6787: }
1.12 www 6788: }
1.52 www 6789:
1.1141 raeburn 6790: # User who is not author or co-author might still be able to edit
6791: # resource of an author in the domain (e.g., if Domain Coordinator).
6792: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
6793: (&allowed('mdc',$env{'request.course.id'}))) {
6794: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
6795: $thisallowed.=$1;
6796: }
6797: }
6798:
1.52 www 6799: # Course: uri itself is a course
1.66 www 6800: my $courseuri=$uri;
6801: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 6802: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 6803:
1.620 albertel 6804: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 6805: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6806: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6807: $thisallowed.=$1;
6808: }
1.12 www 6809: }
1.29 www 6810:
1.665 albertel 6811: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 6812: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 6813: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 6814: $thisallowed='';
1.671 raeburn 6815: my ($match)=&is_on_map($uri);
6816: if ($match) {
6817: if ($env{'user.priv.'.$env{'request.role'}.'./'}
6818: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6819: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6820: if (@blockers > 0) {
6821: $thisallowed = 'B';
6822: } else {
6823: $thisallowed.=$1;
6824: }
1.671 raeburn 6825: }
6826: } else {
1.705 albertel 6827: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 6828: if ($refuri) {
6829: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 6830: $thisallowed='F';
1.671 raeburn 6831: } else {
6832: $refuri=&declutter($refuri);
6833: my ($match) = &is_on_map($refuri);
6834: if ($match) {
1.1162 raeburn 6835: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6836: if (@blockers > 0) {
6837: $thisallowed = 'B';
6838: } else {
6839: $thisallowed='F';
6840: }
1.671 raeburn 6841: }
1.669 raeburn 6842: }
1.671 raeburn 6843: }
6844: }
1.314 www 6845: }
1.492 albertel 6846:
1.766 albertel 6847: if ($priv eq 'bre'
6848: && $thisallowed ne 'F'
6849: && $thisallowed ne '2'
6850: && &is_portfolio_url($uri)) {
1.1270 raeburn 6851: $thisallowed = &portfolio_access($uri,$clientip);
1.766 albertel 6852: }
1.1250 raeburn 6853:
1.52 www 6854: # Full access at system, domain or course-wide level? Exit.
1.29 www 6855: if ($thisallowed=~/F/) {
6856: return 'F';
6857: }
6858:
1.52 www 6859: # If this is generating or modifying users, exit with special codes
1.29 www 6860:
1.643 www 6861: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
6862: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 6863: my ($audom,$auname)=split('/',$uri);
1.643 www 6864: # no author name given, so this just checks on the general right to make a co-author in this domain
6865: unless ($auname) { return $thisallowed; }
6866: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 6867: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
6868: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
6869: ($audom ne $env{'request.role.domain'}))) { return ''; }
6870: }
1.52 www 6871: return $thisallowed;
6872: }
6873: #
1.103 harris41 6874: # Gathered so far: system, domain and course wide privileges
1.52 www 6875: #
6876: # Course: See if uri or referer is an individual resource that is part of
6877: # the course
6878:
1.620 albertel 6879: if ($env{'request.course.id'}) {
1.232 www 6880:
1.620 albertel 6881: $courseprivid=$env{'request.course.id'};
6882: if ($env{'request.course.sec'}) {
6883: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 6884: }
6885: $courseprivid=~s/\_/\//;
6886: my $checkreferer=1;
1.232 www 6887: my ($match,$cond)=&is_on_map($uri);
6888: if ($match) {
6889: $statecond=$cond;
1.620 albertel 6890: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6891: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6892: my $value = $1;
6893: if ($priv eq 'bre') {
6894: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6895: if (@blockers > 0) {
6896: $thisallowed = 'B';
6897: } else {
6898: $thisallowed.=$value;
6899: }
6900: } else {
6901: $thisallowed.=$value;
6902: }
1.52 www 6903: $checkreferer=0;
6904: }
1.29 www 6905: }
1.83 www 6906:
1.148 www 6907: if ($checkreferer) {
1.620 albertel 6908: my $refuri=$env{'httpref.'.$orguri};
1.148 www 6909: unless ($refuri) {
1.800 albertel 6910: foreach my $key (keys(%env)) {
6911: if ($key=~/^httpref\..*\*/) {
6912: my $pattern=$key;
1.156 www 6913: $pattern=~s/^httpref\.\/res\///;
1.148 www 6914: $pattern=~s/\*/\[\^\/\]\+/g;
6915: $pattern=~s/\//\\\//g;
1.152 www 6916: if ($orguri=~/$pattern/) {
1.800 albertel 6917: $refuri=$env{$key};
1.148 www 6918: }
6919: }
1.191 harris41 6920: }
1.148 www 6921: }
1.232 www 6922:
1.148 www 6923: if ($refuri) {
1.152 www 6924: $refuri=&declutter($refuri);
1.232 www 6925: my ($match,$cond)=&is_on_map($refuri);
6926: if ($match) {
6927: my $refstatecond=$cond;
1.620 albertel 6928: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6929: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6930: my $value = $1;
6931: if ($priv eq 'bre') {
6932: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6933: if (@blockers > 0) {
6934: $thisallowed = 'B';
6935: } else {
6936: $thisallowed.=$value;
6937: }
6938: } else {
6939: $thisallowed.=$value;
6940: }
1.53 www 6941: $uri=$refuri;
6942: $statecond=$refstatecond;
1.52 www 6943: }
6944: }
1.148 www 6945: }
1.29 www 6946: }
1.52 www 6947: }
1.29 www 6948:
1.52 www 6949: #
1.103 harris41 6950: # Gathered now: all privileges that could apply, and condition number
1.52 www 6951: #
6952: #
6953: # Full or no access?
6954: #
1.29 www 6955:
1.52 www 6956: if ($thisallowed=~/F/) {
6957: return 'F';
6958: }
1.29 www 6959:
1.52 www 6960: unless ($thisallowed) {
6961: return '';
6962: }
1.29 www 6963:
1.52 www 6964: # Restrictions exist, deal with them
6965: #
6966: # C:according to course preferences
6967: # R:according to resource settings
6968: # L:unless locked
6969: # X:according to user session state
6970: #
6971:
6972: # Possibly locked functionality, check all courses
1.54 www 6973: # Locks might take effect only after 10 minutes cache expiration for other
6974: # courses, and 2 minutes for current course
1.52 www 6975:
6976: my $envkey;
6977: if ($thisallowed=~/L/) {
1.1000 raeburn 6978: foreach $envkey (keys(%env)) {
1.54 www 6979: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
6980: my $courseid=$2;
6981: my $roleid=$1.'.'.$2;
1.92 www 6982: $courseid=~s/^\///;
1.54 www 6983: my $expiretime=600;
1.620 albertel 6984: if ($env{'request.role'} eq $roleid) {
1.54 www 6985: $expiretime=120;
6986: }
6987: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
6988: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 6989: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 6990: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 6991: }
1.620 albertel 6992: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
6993: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
6994: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
6995: &log($env{'user.domain'},$env{'user.name'},
6996: $env{'user.home'},
1.57 www 6997: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 6998: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6999: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7000: return '';
7001: }
7002: }
1.620 albertel 7003: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
7004: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
7005: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
7006: &log($env{'user.domain'},$env{'user.name'},
7007: $env{'user.home'},
1.57 www 7008: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 7009: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 7010: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7011: return '';
7012: }
7013: }
7014: }
1.29 www 7015: }
1.52 www 7016: }
7017:
7018: #
7019: # Rest of the restrictions depend on selected course
7020: #
7021:
1.620 albertel 7022: unless ($env{'request.course.id'}) {
1.766 albertel 7023: if ($thisallowed eq 'A') {
7024: return 'A';
1.814 raeburn 7025: } elsif ($thisallowed eq 'B') {
7026: return 'B';
1.766 albertel 7027: } else {
7028: return '1';
7029: }
1.52 www 7030: }
1.29 www 7031:
1.52 www 7032: #
7033: # Now user is definitely in a course
7034: #
1.53 www 7035:
7036:
7037: # Course preferences
7038:
7039: if ($thisallowed=~/C/) {
1.620 albertel 7040: my $rolecode=(split(/\./,$env{'request.role'}))[0];
7041: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
7042: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 7043: =~/\Q$rolecode\E/) {
1.1103 raeburn 7044: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7045: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7046: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
7047: $env{'request.course.id'});
7048: }
1.237 www 7049: return '';
7050: }
7051:
1.620 albertel 7052: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 7053: =~/\Q$unamedom\E/) {
1.1103 raeburn 7054: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7055: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
7056: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
7057: $env{'request.course.id'});
7058: }
1.54 www 7059: return '';
7060: }
1.53 www 7061: }
7062:
7063: # Resource preferences
7064:
7065: if ($thisallowed=~/R/) {
1.620 albertel 7066: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 7067: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 7068: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7069: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7070: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
7071: }
7072: return '';
1.54 www 7073: }
1.53 www 7074: }
1.30 www 7075:
1.246 www 7076: # Restricted by state or randomout?
1.30 www 7077:
1.52 www 7078: if ($thisallowed=~/X/) {
1.620 albertel 7079: if ($env{'acc.randomout'}) {
1.579 albertel 7080: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 7081: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 7082: return '';
7083: }
1.247 www 7084: }
7085: if (&condval($statecond)) {
1.52 www 7086: return '2';
7087: } else {
7088: return '';
7089: }
7090: }
1.30 www 7091:
1.766 albertel 7092: if ($thisallowed eq 'A') {
7093: return 'A';
1.814 raeburn 7094: } elsif ($thisallowed eq 'B') {
7095: return 'B';
1.766 albertel 7096: }
1.52 www 7097: return 'F';
1.232 www 7098: }
1.1162 raeburn 7099:
1.1192 raeburn 7100: # ------------------------------------------- Check construction space access
7101:
7102: sub constructaccess {
7103: my ($url,$setpriv)=@_;
7104:
7105: # We do not allow editing of previous versions of files
7106: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
7107:
7108: # Get username and domain from URL
7109: my ($ownername,$ownerdomain,$ownerhome);
7110:
7111: ($ownerdomain,$ownername) =
7112: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)/});
7113:
7114: # The URL does not really point to any authorspace, forget it
7115: unless (($ownername) && ($ownerdomain)) { return ''; }
7116:
7117: # Now we need to see if the user has access to the authorspace of
7118: # $ownername at $ownerdomain
7119:
7120: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
7121: # Real author for this?
7122: $ownerhome = $env{'user.home'};
7123: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
7124: return ($ownername,$ownerdomain,$ownerhome);
7125: }
7126: } else {
7127: # Co-author for this?
7128: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
7129: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
7130: $ownerhome = &homeserver($ownername,$ownerdomain);
7131: return ($ownername,$ownerdomain,$ownerhome);
7132: }
7133: }
7134:
7135: # We don't have any access right now. If we are not possibly going to do anything about this,
7136: # we might as well leave
7137: unless ($setpriv) { return ''; }
7138:
7139: # Backdoor access?
7140: my $allowed=&allowed('eco',$ownerdomain);
7141: # Nope
7142: unless ($allowed) { return ''; }
7143: # Looks like we may have access, but could be locked by the owner of the construction space
7144: if ($allowed eq 'U') {
7145: my %blocked=&get('environment',['domcoord.author'],
7146: $ownerdomain,$ownername);
7147: # Is blocked by owner
7148: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
7149: }
7150: if (($allowed eq 'F') || ($allowed eq 'U')) {
7151: # Grant temporary access
7152: my $then=$env{'user.login.time'};
1.1209 raeburn 7153: my $update=$env{'user.update.time'};
1.1192 raeburn 7154: if (!$update) { $update = $then; }
7155: my $refresh=$env{'user.refresh.time'};
7156: if (!$refresh) { $refresh = $update; }
7157: my $now = time;
7158: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
7159: $now,'ca','constructaccess');
7160: $ownerhome = &homeserver($ownername,$ownerdomain);
7161: return($ownername,$ownerdomain,$ownerhome);
7162: }
7163: # No business here
7164: return '';
7165: }
7166:
1.1162 raeburn 7167: sub get_comm_blocks {
7168: my ($cdom,$cnum) = @_;
7169: if ($cdom eq '' || $cnum eq '') {
7170: return unless ($env{'request.course.id'});
7171: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7172: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7173: }
7174: my %commblocks;
7175: my $hashid=$cdom.'_'.$cnum;
7176: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
7177: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
7178: %commblocks = %{$blocksref};
7179: } else {
7180: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
7181: my $cachetime = 600;
7182: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
7183: }
7184: return %commblocks;
7185: }
7186:
7187: sub has_comm_blocking {
7188: my ($priv,$symb,$uri,$blocks) = @_;
7189: return unless ($env{'request.course.id'});
7190: return unless ($priv eq 'bre');
7191: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
7192: my %commblocks;
7193: if (ref($blocks) eq 'HASH') {
7194: %commblocks = %{$blocks};
7195: } else {
7196: %commblocks = &get_comm_blocks();
7197: }
7198: return unless (keys(%commblocks) > 0);
7199: if (!$symb) { $symb=&symbread($uri,1); }
7200: my ($map,$resid,undef)=&decode_symb($symb);
7201: my %tocheck = (
7202: maps => $map,
7203: resources => $symb,
7204: );
7205: my @blockers;
7206: my $now = time;
1.1163 raeburn 7207: my $navmap = Apache::lonnavmaps::navmap->new();
1.1162 raeburn 7208: foreach my $block (keys(%commblocks)) {
7209: if ($block =~ /^(\d+)____(\d+)$/) {
7210: my ($start,$end) = ($1,$2);
7211: if ($start <= $now && $end >= $now) {
7212: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
7213: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
7214: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
7215: if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
7216: unless (grep(/^\Q$block\E$/,@blockers)) {
7217: push(@blockers,$block);
7218: }
7219: }
7220: }
7221: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
7222: if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
7223: unless (grep(/^\Q$block\E$/,@blockers)) {
7224: push(@blockers,$block);
7225: }
7226: }
7227: }
7228: }
7229: }
7230: }
7231: } elsif ($block =~ /^firstaccess____(.+)$/) {
7232: my $item = $1;
1.1163 raeburn 7233: my @to_test;
1.1162 raeburn 7234: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
7235: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
7236: my $check_interval;
7237: if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
7238: my @interval;
7239: my $type = 'map';
7240: if ($item eq 'course') {
7241: $type = 'course';
7242: @interval=&EXT("resource.0.interval");
7243: } else {
7244: if ($item =~ /___\d+___/) {
7245: $type = 'resource';
7246: @interval=&EXT("resource.0.interval",$item);
1.1163 raeburn 7247: if (ref($navmap)) {
7248: my $res = $navmap->getBySymb($item);
7249: push(@to_test,$res);
7250: }
1.1162 raeburn 7251: } else {
7252: my $mapsymb = &symbread($item,1);
7253: if ($mapsymb) {
7254: if (ref($navmap)) {
7255: my $mapres = $navmap->getBySymb($mapsymb);
1.1163 raeburn 7256: @to_test = $mapres->retrieveResources($mapres,undef,0,1);
7257: foreach my $res (@to_test) {
1.1162 raeburn 7258: my $symb = $res->symb();
7259: next if ($symb eq $mapsymb);
7260: if ($symb ne '') {
7261: @interval=&EXT("resource.0.interval",$symb);
7262: last;
7263: }
7264: }
7265: }
7266: }
7267: }
7268: }
7269: if ($interval[0] =~ /\d+/) {
7270: my $first_access;
7271: if ($type eq 'resource') {
7272: $first_access=&get_first_access($interval[1],$item);
7273: } elsif ($type eq 'map') {
7274: $first_access=&get_first_access($interval[1],undef,$item);
7275: } else {
7276: $first_access=&get_first_access($interval[1]);
7277: }
7278: if ($first_access) {
7279: my $timesup = $first_access+$interval[0];
7280: if ($timesup > $now) {
1.1163 raeburn 7281: foreach my $res (@to_test) {
7282: if ($res->is_problem()) {
7283: if ($res->completable()) {
7284: unless (grep(/^\Q$block\E$/,@blockers)) {
7285: push(@blockers,$block);
7286: }
7287: last;
7288: }
7289: }
1.1162 raeburn 7290: }
7291: }
7292: }
7293: }
7294: }
7295: }
7296: }
7297: }
7298: }
7299: return @blockers;
7300: }
7301:
7302: sub check_docs_block {
7303: my ($docsblock,$tocheck) =@_;
7304: if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) {
7305: return;
7306: }
7307: if (ref($docsblock->{'maps'}) eq 'HASH') {
7308: if ($tocheck->{'maps'}) {
7309: if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
7310: return 1;
7311: }
7312: }
7313: }
7314: if (ref($docsblock->{'resources'}) eq 'HASH') {
7315: if ($tocheck->{'resources'}) {
7316: if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
7317: return 1;
7318: }
7319: }
7320: }
7321: return;
7322: }
7323:
1.1133 foxr 7324: #
7325: # Removes the versino from a URI and
7326: # splits it in to its filename and path to the filename.
7327: # Seems like File::Basename could have done this more clearly.
7328: # Parameters:
7329: # $uri - input URI
7330: # Returns:
7331: # Two element list consisting of
7332: # $pathname - the URI up to and excluding the trailing /
7333: # $filename - The part of the URI following the last /
7334: # NOTE:
7335: # Another realization of this is simply:
7336: # use File::Basename;
7337: # ...
7338: # $uri = shift;
7339: # $filename = basename($uri);
7340: # $path = dirname($uri);
7341: # return ($filename, $path);
7342: #
7343: # The implementation below is probably faster however.
7344: #
1.710 albertel 7345: sub split_uri_for_cond {
7346: my $uri=&deversion(&declutter(shift));
7347: my @uriparts=split(/\//,$uri);
7348: my $filename=pop(@uriparts);
7349: my $pathname=join('/',@uriparts);
7350: return ($pathname,$filename);
7351: }
1.232 www 7352: # --------------------------------------------------- Is a resource on the map?
7353:
7354: sub is_on_map {
1.710 albertel 7355: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 7356: #Trying to find the conditional for the file
1.620 albertel 7357: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 7358: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 7359: if ($match) {
1.289 bowersj2 7360: return (1,$1);
7361: } else {
1.434 www 7362: return (0,0);
1.289 bowersj2 7363: }
1.12 www 7364: }
7365:
1.427 www 7366: # --------------------------------------------------------- Get symb from alias
7367:
7368: sub get_symb_from_alias {
7369: my $symb=shift;
7370: my ($map,$resid,$url)=&decode_symb($symb);
7371: # Already is a symb
7372: if ($url) { return $symb; }
7373: # Must be an alias
7374: my $aliassymb='';
7375: my %bighash;
1.620 albertel 7376: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 7377: &GDBM_READER(),0640)) {
7378: my $rid=$bighash{'mapalias_'.$symb};
7379: if ($rid) {
7380: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 7381: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
7382: $resid,$bighash{'src_'.$rid});
1.427 www 7383: }
7384: untie %bighash;
7385: }
7386: return $aliassymb;
7387: }
7388:
1.12 www 7389: # ----------------------------------------------------------------- Define Role
7390:
7391: sub definerole {
7392: if (allowed('mcr','/')) {
7393: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 7394: foreach my $role (split(':',$sysrole)) {
7395: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7396: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
7397: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
7398: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7399: return "refused:s:$crole&$cqual";
7400: }
7401: }
1.191 harris41 7402: }
1.800 albertel 7403: foreach my $role (split(':',$domrole)) {
7404: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7405: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
7406: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
7407: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 7408: return "refused:d:$crole&$cqual";
7409: }
7410: }
1.191 harris41 7411: }
1.800 albertel 7412: foreach my $role (split(':',$courole)) {
7413: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7414: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
7415: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
7416: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7417: return "refused:c:$crole&$cqual";
7418: }
7419: }
1.191 harris41 7420: }
1.620 albertel 7421: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
7422: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7423: "rolesdef_$rolename=".
7424: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 7425: return reply($command,$env{'user.home'});
1.12 www 7426: } else {
7427: return 'refused';
7428: }
1.105 harris41 7429: }
7430:
7431: # ---------------- Make a metadata query against the network of library servers
7432:
7433: sub metadata_query {
1.1237 raeburn 7434: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
1.120 harris41 7435: my %rhash;
1.845 albertel 7436: my %libserv = &all_library();
1.244 matthew 7437: my @server_list = (defined($server_array) ? @$server_array
7438: : keys(%libserv) );
7439: for my $server (@server_list) {
1.1237 raeburn 7440: my $domains = '';
7441: if (ref($domains_hash) eq 'HASH') {
7442: $domains = $domains_hash->{$server};
7443: }
1.118 harris41 7444: unless ($custom or $customshow) {
1.1237 raeburn 7445: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
1.118 harris41 7446: $rhash{$server}=$reply;
7447: }
7448: else {
7449: my $reply=&reply("querysend:".&escape($query).':'.
1.1237 raeburn 7450: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
1.118 harris41 7451: $server);
7452: $rhash{$server}=$reply;
7453: }
1.112 harris41 7454: }
1.118 harris41 7455: return \%rhash;
1.240 www 7456: }
7457:
7458: # ----------------------------------------- Send log queries and wait for reply
7459:
7460: sub log_query {
7461: my ($uname,$udom,$query,%filters)=@_;
7462: my $uhome=&homeserver($uname,$udom);
7463: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 7464: my $uhost=&hostname($uhome);
1.800 albertel 7465: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 7466: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
7467: $uhome);
1.479 albertel 7468: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 7469: return get_query_reply($queryid);
7470: }
7471:
1.818 raeburn 7472: # -------------------------- Update MySQL table for portfolio file
7473:
7474: sub update_portfolio_table {
1.821 raeburn 7475: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 7476: if ($group ne '') {
7477: $file_name =~s /^\Q$group\E//;
7478: }
1.818 raeburn 7479: my $homeserver = &homeserver($uname,$udom);
7480: my $queryid=
1.821 raeburn 7481: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
7482: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 7483: my $reply = &get_query_reply($queryid);
7484: return $reply;
7485: }
7486:
1.899 raeburn 7487: # -------------------------- Update MySQL allusers table
7488:
7489: sub update_allusers_table {
7490: my ($uname,$udom,$names) = @_;
7491: my $homeserver = &homeserver($uname,$udom);
7492: my $queryid=
7493: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
7494: 'lastname='.&escape($names->{'lastname'}).'%%'.
7495: 'firstname='.&escape($names->{'firstname'}).'%%'.
7496: 'middlename='.&escape($names->{'middlename'}).'%%'.
7497: 'generation='.&escape($names->{'generation'}).'%%'.
7498: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
7499: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 7500: return;
1.899 raeburn 7501: }
7502:
1.508 raeburn 7503: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 7504:
7505: sub fetch_enrollment_query {
1.511 raeburn 7506: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 7507: my $homeserver;
1.547 raeburn 7508: my $maxtries = 1;
1.508 raeburn 7509: if ($context eq 'automated') {
7510: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 7511: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 7512: } else {
7513: $homeserver = &homeserver($cnum,$dom);
7514: }
1.838 albertel 7515: my $host=&hostname($homeserver);
1.506 raeburn 7516: my $cmd = '';
1.1000 raeburn 7517: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 7518: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 7519: }
7520: $cmd =~ s/%%$//;
7521: $cmd = &escape($cmd);
7522: my $query = 'fetchenrollment';
1.620 albertel 7523: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 7524: unless ($queryid=~/^\Q$host\E\_/) {
7525: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
7526: return 'error: '.$queryid;
7527: }
1.506 raeburn 7528: my $reply = &get_query_reply($queryid);
1.547 raeburn 7529: my $tries = 1;
7530: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7531: $reply = &get_query_reply($queryid);
7532: $tries ++;
7533: }
1.526 raeburn 7534: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 7535: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 7536: } else {
1.901 albertel 7537: my @responses = split(/:/,$reply);
1.515 raeburn 7538: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 7539: foreach my $line (@responses) {
7540: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 7541: $$replyref{$key} = $value;
7542: }
7543: } else {
1.1117 foxr 7544: my $pathname = LONCAPA::tempdir();
1.800 albertel 7545: foreach my $line (@responses) {
7546: my ($key,$value) = split(/=/,$line);
1.506 raeburn 7547: $$replyref{$key} = $value;
7548: if ($value > 0) {
1.800 albertel 7549: foreach my $item (@{$$affiliatesref{$key}}) {
7550: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 7551: my $destname = $pathname.'/'.$filename;
7552: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 7553: if ($xml_classlist =~ /^error/) {
7554: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
7555: } else {
1.506 raeburn 7556: if ( open(FILE,">$destname") ) {
7557: print FILE &unescape($xml_classlist);
7558: close(FILE);
1.526 raeburn 7559: } else {
7560: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 7561: }
7562: }
7563: }
7564: }
7565: }
7566: }
7567: return 'ok';
7568: }
7569: return 'error';
7570: }
7571:
1.242 www 7572: sub get_query_reply {
7573: my $queryid=shift;
1.1117 foxr 7574: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 7575: my $reply='';
7576: for (1..100) {
7577: sleep 2;
7578: if (-e $replyfile.'.end') {
1.448 albertel 7579: if (open(my $fh,$replyfile)) {
1.904 albertel 7580: $reply = join('',<$fh>);
7581: close($fh);
1.240 www 7582: } else { return 'error: reply_file_error'; }
1.242 www 7583: return &unescape($reply);
7584: }
1.240 www 7585: }
1.242 www 7586: return 'timeout:'.$queryid;
1.240 www 7587: }
7588:
7589: sub courselog_query {
1.241 www 7590: #
7591: # possible filters:
7592: # url: url or symb
7593: # username
7594: # domain
7595: # action: view, submit, grade
7596: # start: timestamp
7597: # end: timestamp
7598: #
1.240 www 7599: my (%filters)=@_;
1.620 albertel 7600: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 7601: if ($filters{'url'}) {
7602: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
7603: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
7604: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
7605: }
1.620 albertel 7606: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
7607: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 7608: return &log_query($cname,$cdom,'courselog',%filters);
7609: }
7610:
7611: sub userlog_query {
1.858 raeburn 7612: #
7613: # possible filters:
7614: # action: log check role
7615: # start: timestamp
7616: # end: timestamp
7617: #
1.240 www 7618: my ($uname,$udom,%filters)=@_;
7619: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 7620: }
7621:
1.506 raeburn 7622: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
7623:
7624: sub auto_run {
1.508 raeburn 7625: my ($cnum,$cdom) = @_;
1.876 raeburn 7626: my $response = 0;
7627: my $settings;
7628: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
7629: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
7630: $settings = $domconfig{'autoenroll'};
7631: if ($settings->{'run'} eq '1') {
7632: $response = 1;
7633: }
7634: } else {
1.934 raeburn 7635: my $homeserver;
7636: if (&is_course($cdom,$cnum)) {
7637: $homeserver = &homeserver($cnum,$cdom);
7638: } else {
7639: $homeserver = &domain($cdom,'primary');
7640: }
7641: if ($homeserver ne 'no_host') {
7642: $response = &reply('autorun:'.$cdom,$homeserver);
7643: }
1.876 raeburn 7644: }
1.506 raeburn 7645: return $response;
7646: }
1.776 albertel 7647:
1.506 raeburn 7648: sub auto_get_sections {
1.508 raeburn 7649: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 7650: my $homeserver;
7651: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7652: $homeserver = &homeserver($cnum,$cdom);
7653: }
7654: if (!defined($homeserver)) {
7655: if ($cdom =~ /^$match_domain$/) {
7656: $homeserver = &domain($cdom,'primary');
7657: }
7658: }
7659: my @secs;
7660: if (defined($homeserver)) {
7661: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
7662: unless ($response eq 'refused') {
7663: @secs = split(/:/,$response);
7664: }
1.506 raeburn 7665: }
7666: return @secs;
7667: }
1.776 albertel 7668:
1.506 raeburn 7669: sub auto_new_course {
1.1099 raeburn 7670: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 7671: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 7672: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 7673: return $response;
7674: }
1.776 albertel 7675:
1.506 raeburn 7676: sub auto_validate_courseID {
1.508 raeburn 7677: my ($cnum,$cdom,$inst_course_id) = @_;
7678: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 7679: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 7680: return $response;
7681: }
1.776 albertel 7682:
1.1007 raeburn 7683: sub auto_validate_instcode {
1.1020 raeburn 7684: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 7685: my ($homeserver,$response);
7686: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7687: $homeserver = &homeserver($cnum,$cdom);
7688: }
7689: if (!defined($homeserver)) {
7690: if ($cdom =~ /^$match_domain$/) {
7691: $homeserver = &domain($cdom,'primary');
7692: }
7693: }
1.1065 raeburn 7694: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
7695: &escape($instcode).':'.&escape($owner),$homeserver));
1.1216 raeburn 7696: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
7697: return ($outcome,$description,$defaultcredits);
1.1007 raeburn 7698: }
7699:
1.506 raeburn 7700: sub auto_create_password {
1.873 raeburn 7701: my ($cnum,$cdom,$authparam,$udom) = @_;
7702: my ($homeserver,$response);
1.506 raeburn 7703: my $create_passwd = 0;
7704: my $authchk = '';
1.873 raeburn 7705: if ($udom =~ /^$match_domain$/) {
7706: $homeserver = &domain($udom,'primary');
7707: }
7708: if ($homeserver eq '') {
7709: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7710: $homeserver = &homeserver($cnum,$cdom);
7711: }
7712: }
7713: if ($homeserver eq '') {
7714: $authchk = 'nodomain';
1.506 raeburn 7715: } else {
1.873 raeburn 7716: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
7717: if ($response eq 'refused') {
7718: $authchk = 'refused';
7719: } else {
1.901 albertel 7720: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 7721: }
1.506 raeburn 7722: }
7723: return ($authparam,$create_passwd,$authchk);
7724: }
7725:
1.706 raeburn 7726: sub auto_photo_permission {
7727: my ($cnum,$cdom,$students) = @_;
7728: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 7729: my ($outcome,$perm_reqd,$conditions) =
7730: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 7731: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7732: return (undef,undef);
7733: }
1.706 raeburn 7734: return ($outcome,$perm_reqd,$conditions);
7735: }
7736:
7737: sub auto_checkphotos {
7738: my ($uname,$udom,$pid) = @_;
7739: my $homeserver = &homeserver($uname,$udom);
7740: my ($result,$resulttype);
7741: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 7742: &escape($uname).':'.&escape($pid),
7743: $homeserver));
1.709 albertel 7744: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7745: return (undef,undef);
7746: }
1.706 raeburn 7747: if ($outcome) {
7748: ($result,$resulttype) = split(/:/,$outcome);
7749: }
7750: return ($result,$resulttype);
7751: }
7752:
7753: sub auto_photochoice {
7754: my ($cnum,$cdom) = @_;
7755: my $homeserver = &homeserver($cnum,$cdom);
7756: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 7757: &escape($cdom),
7758: $homeserver)));
1.709 albertel 7759: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7760: return (undef,undef);
7761: }
1.706 raeburn 7762: return ($update,$comment);
7763: }
7764:
7765: sub auto_photoupdate {
7766: my ($affiliatesref,$dom,$cnum,$photo) = @_;
7767: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 7768: my $host=&hostname($homeserver);
1.706 raeburn 7769: my $cmd = '';
7770: my $maxtries = 1;
1.800 albertel 7771: foreach my $affiliate (keys(%{$affiliatesref})) {
7772: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 7773: }
7774: $cmd =~ s/%%$//;
7775: $cmd = &escape($cmd);
7776: my $query = 'institutionalphotos';
7777: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
7778: unless ($queryid=~/^\Q$host\E\_/) {
7779: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
7780: return 'error: '.$queryid;
7781: }
7782: my $reply = &get_query_reply($queryid);
7783: my $tries = 1;
7784: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7785: $reply = &get_query_reply($queryid);
7786: $tries ++;
7787: }
7788: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
7789: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
7790: } else {
7791: my @responses = split(/:/,$reply);
7792: my $outcome = shift(@responses);
7793: foreach my $item (@responses) {
7794: my ($key,$value) = split(/=/,$item);
7795: $$photo{$key} = $value;
7796: }
7797: return $outcome;
7798: }
7799: return 'error';
7800: }
7801:
1.521 raeburn 7802: sub auto_instcode_format {
1.793 albertel 7803: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
7804: $cat_order) = @_;
1.521 raeburn 7805: my $courses = '';
1.772 raeburn 7806: my @homeservers;
1.521 raeburn 7807: if ($caller eq 'global') {
1.841 albertel 7808: my %servers = &get_servers($codedom,'library');
7809: foreach my $tryserver (keys(%servers)) {
7810: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7811: push(@homeservers,$tryserver);
7812: }
1.584 raeburn 7813: }
1.1022 raeburn 7814: } elsif ($caller eq 'requests') {
7815: if ($codedom =~ /^$match_domain$/) {
7816: my $chome = &domain($codedom,'primary');
7817: unless ($chome eq 'no_host') {
7818: push(@homeservers,$chome);
7819: }
7820: }
1.521 raeburn 7821: } else {
1.772 raeburn 7822: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 7823: }
1.793 albertel 7824: foreach my $code (keys(%{$instcodes})) {
7825: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 7826: }
7827: chop($courses);
1.772 raeburn 7828: my $ok_response = 0;
7829: my $response;
7830: while (@homeservers > 0 && $ok_response == 0) {
7831: my $server = shift(@homeservers);
7832: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
7833: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
7834: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 7835: split(/:/,$response);
1.772 raeburn 7836: %{$codes} = (%{$codes},&str2hash($codes_str));
7837: push(@{$codetitles},&str2array($codetitles_str));
7838: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
7839: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
7840: $ok_response = 1;
7841: }
7842: }
7843: if ($ok_response) {
1.521 raeburn 7844: return 'ok';
1.772 raeburn 7845: } else {
7846: return $response;
1.521 raeburn 7847: }
7848: }
7849:
1.792 raeburn 7850: sub auto_instcode_defaults {
7851: my ($domain,$returnhash,$code_order) = @_;
7852: my @homeservers;
1.841 albertel 7853:
7854: my %servers = &get_servers($domain,'library');
7855: foreach my $tryserver (keys(%servers)) {
7856: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7857: push(@homeservers,$tryserver);
7858: }
1.792 raeburn 7859: }
1.841 albertel 7860:
1.792 raeburn 7861: my $response;
1.841 albertel 7862: foreach my $server (@homeservers) {
1.792 raeburn 7863: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 7864: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
7865:
7866: foreach my $pair (split(/\&/,$response)) {
7867: my ($name,$value)=split(/\=/,$pair);
7868: if ($name eq 'code_order') {
7869: @{$code_order} = split(/\&/,&unescape($value));
7870: } else {
7871: $returnhash->{&unescape($name)}=&unescape($value);
7872: }
7873: }
7874: return 'ok';
1.792 raeburn 7875: }
1.841 albertel 7876:
7877: return $response;
1.1003 raeburn 7878: }
7879:
7880: sub auto_possible_instcodes {
1.1007 raeburn 7881: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
7882: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
7883: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
7884: return;
7885: }
1.1003 raeburn 7886: my (@homeservers,$uhome);
7887: if (defined(&domain($domain,'primary'))) {
7888: $uhome=&domain($domain,'primary');
7889: push(@homeservers,&domain($domain,'primary'));
7890: } else {
7891: my %servers = &get_servers($domain,'library');
7892: foreach my $tryserver (keys(%servers)) {
7893: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7894: push(@homeservers,$tryserver);
7895: }
7896: }
7897: }
7898: my $response;
7899: foreach my $server (@homeservers) {
7900: $response=&reply('autopossibleinstcodes:'.$domain,$server);
7901: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 7902: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
7903: split(':',$response);
7904: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
7905: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 7906: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 7907: my ($name,$value)=split('=',$item);
7908: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7909: }
7910: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 7911: my ($name,$value)=split('=',$item);
7912: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7913: }
7914: return 'ok';
7915: }
7916: return $response;
7917: }
1.792 raeburn 7918:
1.1010 raeburn 7919: sub auto_courserequest_checks {
7920: my ($dom) = @_;
1.1020 raeburn 7921: my ($homeserver,%validations);
7922: if ($dom =~ /^$match_domain$/) {
7923: $homeserver = &domain($dom,'primary');
7924: }
7925: unless ($homeserver eq 'no_host') {
7926: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
7927: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7928: my @items = split(/&/,$response);
7929: foreach my $item (@items) {
7930: my ($key,$value) = split('=',$item);
7931: $validations{&unescape($key)} = &thaw_unescape($value);
7932: }
7933: }
7934: }
1.1010 raeburn 7935: return %validations;
7936: }
7937:
1.1020 raeburn 7938: sub auto_courserequest_validation {
1.1255 raeburn 7939: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
1.1020 raeburn 7940: my ($homeserver,$response);
7941: if ($dom =~ /^$match_domain$/) {
7942: $homeserver = &domain($dom,'primary');
7943: }
1.1255 raeburn 7944: unless ($homeserver eq 'no_host') {
7945: my $customdata;
7946: if (ref($custominfo) eq 'HASH') {
7947: $customdata = &freeze_escape($custominfo);
7948: }
1.1020 raeburn 7949: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 7950: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1255 raeburn 7951: ':'.&escape($instcode).':'.&escape($instseclist).':'.
7952: $customdata,$homeserver));
1.1020 raeburn 7953: }
7954: return $response;
7955: }
7956:
1.777 albertel 7957: sub auto_validate_class_sec {
1.918 raeburn 7958: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 7959: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 7960: my $ownerlist;
7961: if (ref($owners) eq 'ARRAY') {
7962: $ownerlist = join(',',@{$owners});
7963: } else {
7964: $ownerlist = $owners;
7965: }
1.773 raeburn 7966: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 7967: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 7968: return $response;
7969: }
7970:
1.1248 raeburn 7971: sub auto_crsreq_update {
7972: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
1.1257 raeburn 7973: $code,$accessstart,$accessend,$inbound) = @_;
1.1248 raeburn 7974: my ($homeserver,%crsreqresponse);
7975: if ($cdom =~ /^$match_domain$/) {
7976: $homeserver = &domain($cdom,'primary');
7977: }
7978: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
7979: my $info;
7980: if (ref($inbound) eq 'HASH') {
7981: $info = &freeze_escape($inbound);
7982: }
7983: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
7984: ':'.&escape($action).':'.&escape($ownername).':'.
7985: &escape($ownerdomain).':'.&escape($fullname).':'.
1.1257 raeburn 7986: &escape($title).':'.&escape($code).':'.
7987: &escape($accessstart).':'.&escape($accessend).':'.$info,
7988: $homeserver);
1.1248 raeburn 7989: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7990: my @items = split(/&/,$response);
7991: foreach my $item (@items) {
7992: my ($key,$value) = split('=',$item);
7993: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
7994: }
7995: }
7996: }
7997: return \%crsreqresponse;
7998: }
7999:
1.679 raeburn 8000: # ------------------------------------------------------- Course Group routines
8001:
8002: sub get_coursegroups {
1.809 raeburn 8003: my ($cdom,$cnum,$group,$namespace) = @_;
8004: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 8005: }
8006:
1.679 raeburn 8007: sub modify_coursegroup {
8008: my ($cdom,$cnum,$groupsettings) = @_;
8009: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
8010: }
8011:
1.809 raeburn 8012: sub toggle_coursegroup_status {
8013: my ($cdom,$cnum,$group,$action) = @_;
8014: my ($from_namespace,$to_namespace);
8015: if ($action eq 'delete') {
8016: $from_namespace = 'coursegroups';
8017: $to_namespace = 'deleted_groups';
8018: } else {
8019: $from_namespace = 'deleted_groups';
8020: $to_namespace = 'coursegroups';
8021: }
8022: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 8023: if (my $tmp = &error(%curr_group)) {
8024: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
8025: return ('read error',$tmp);
8026: } else {
8027: my %savedsettings = %curr_group;
1.809 raeburn 8028: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 8029: my $deloutcome;
8030: if ($result eq 'ok') {
1.809 raeburn 8031: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 8032: } else {
8033: return ('write error',$result);
8034: }
8035: if ($deloutcome eq 'ok') {
8036: return 'ok';
8037: } else {
8038: return ('delete error',$deloutcome);
8039: }
8040: }
8041: }
8042:
1.679 raeburn 8043: sub modify_group_roles {
1.957 raeburn 8044: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 8045: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
8046: my $role = 'gr/'.&escape($userprivs);
8047: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 8048: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 8049: if ($result eq 'ok') {
8050: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
8051: }
1.679 raeburn 8052: return $result;
8053: }
8054:
8055: sub modify_coursegroup_membership {
8056: my ($cdom,$cnum,$membership) = @_;
8057: my $result = &put('groupmembership',$membership,$cdom,$cnum);
8058: return $result;
8059: }
8060:
1.682 raeburn 8061: sub get_active_groups {
8062: my ($udom,$uname,$cdom,$cnum) = @_;
8063: my $now = time;
8064: my %groups = ();
8065: foreach my $key (keys(%env)) {
1.811 albertel 8066: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 8067: my ($start,$end) = split(/\./,$env{$key});
8068: if (($end!=0) && ($end<$now)) { next; }
8069: if (($start!=0) && ($start>$now)) { next; }
8070: if ($1 eq $cdom && $2 eq $cnum) {
8071: $groups{$3} = $env{$key} ;
8072: }
8073: }
8074: }
8075: return %groups;
8076: }
8077:
1.683 raeburn 8078: sub get_group_membership {
8079: my ($cdom,$cnum,$group) = @_;
8080: return(&dump('groupmembership',$cdom,$cnum,$group));
8081: }
8082:
8083: sub get_users_groups {
8084: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 8085: my @usersgroups;
1.683 raeburn 8086: my $cachetime=1800;
8087:
8088: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 8089: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
8090: if (defined($cached)) {
1.734 albertel 8091: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 8092: } else {
8093: $grouplist = '';
1.816 raeburn 8094: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 8095: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 8096: my $access_end = $env{'course.'.$courseid.
8097: '.default_enrollment_end_date'};
8098: my $now = time;
8099: foreach my $key (keys(%roleshash)) {
8100: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
8101: my $group = $1;
8102: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
8103: my $start = $2;
8104: my $end = $1;
8105: if ($start == -1) { next; } # deleted from group
8106: if (($start!=0) && ($start>$now)) { next; }
8107: if (($end!=0) && ($end<$now)) {
8108: if ($access_end && $access_end < $now) {
8109: if ($access_end - $end < 86400) {
8110: push(@usersgroups,$group);
1.733 raeburn 8111: }
8112: }
1.817 raeburn 8113: next;
1.733 raeburn 8114: }
1.817 raeburn 8115: push(@usersgroups,$group);
1.683 raeburn 8116: }
8117: }
8118: }
1.817 raeburn 8119: @usersgroups = &sort_course_groups($courseid,@usersgroups);
8120: $grouplist = join(':',@usersgroups);
8121: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 8122: }
1.733 raeburn 8123: return @usersgroups;
1.683 raeburn 8124: }
8125:
8126: sub devalidate_getgroups_cache {
8127: my ($udom,$uname,$cdom,$cnum)=@_;
8128: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 8129:
1.683 raeburn 8130: my $hashid="$udom:$uname:$courseid";
8131: &devalidate_cache_new('getgroups',$hashid);
8132: }
8133:
1.12 www 8134: # ------------------------------------------------------------------ Plain Text
8135:
8136: sub plaintext {
1.988 raeburn 8137: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 8138: if ($short =~ m{^cr/}) {
1.758 albertel 8139: return (split('/',$short))[-1];
8140: }
1.742 raeburn 8141: if (!defined($cid)) {
8142: $cid = $env{'request.course.id'};
8143: }
8144: my %rolenames = (
1.1008 raeburn 8145: Course => 'std',
8146: Community => 'alt1',
1.742 raeburn 8147: );
1.1037 raeburn 8148: if ($cid ne '') {
8149: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
8150: unless ($forcedefault) {
8151: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
8152: &Apache::lonlocal::mt_escape(\$roletext);
8153: return &Apache::lonlocal::mt($roletext);
8154: }
8155: }
8156: }
8157: if ((defined($type)) && (defined($rolenames{$type})) &&
8158: (defined($rolenames{$type})) &&
8159: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 8160: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 8161: } elsif ($cid ne '') {
8162: my $crstype = $env{'course.'.$cid.'.type'};
8163: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
8164: (defined($prp{$short}{$rolenames{$crstype}}))) {
8165: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
8166: }
1.742 raeburn 8167: }
1.1037 raeburn 8168: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 8169: }
8170:
8171: # ----------------------------------------------------------------- Assign Role
8172:
8173: sub assignrole {
1.957 raeburn 8174: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
8175: $context)=@_;
1.21 www 8176: my $mrole;
8177: if ($role =~ /^cr\//) {
1.393 www 8178: my $cwosec=$url;
1.811 albertel 8179: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 8180: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 8181: my $refused = 1;
8182: if ($context eq 'requestcourses') {
8183: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
8184: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
8185: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
8186: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
8187: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
8188: if ($crsenv{'internal.courseowner'} eq
8189: $env{'user.name'}.':'.$env{'user.domain'}) {
8190: $refused = '';
8191: }
8192: }
8193: }
8194: }
8195: }
8196: if ($refused) {
8197: &logthis('Refused custom assignrole: '.
8198: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
8199: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
8200: return 'refused';
8201: }
1.104 www 8202: }
1.21 www 8203: $mrole='cr';
1.678 raeburn 8204: } elsif ($role =~ /^gr\//) {
8205: my $cwogrp=$url;
1.811 albertel 8206: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 8207: unless (&allowed('mdg',$cwogrp)) {
8208: &logthis('Refused group assignrole: '.
8209: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
8210: $env{'user.name'}.' at '.$env{'user.domain'});
8211: return 'refused';
8212: }
8213: $mrole='gr';
1.21 www 8214: } else {
1.82 www 8215: my $cwosec=$url;
1.811 albertel 8216: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 8217: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
8218: my $refused;
8219: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
8220: if (!(&allowed('c'.$role,$url))) {
8221: $refused = 1;
8222: }
8223: } else {
8224: $refused = 1;
8225: }
1.947 raeburn 8226: if ($refused) {
1.1045 raeburn 8227: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
8228: if (!$selfenroll && $context eq 'course') {
8229: my %crsenv;
8230: if ($role eq 'cc' || $role eq 'co') {
8231: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
8232: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
8233: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
8234: if ($crsenv{'internal.courseowner'} eq
8235: $env{'user.name'}.':'.$env{'user.domain'}) {
8236: $refused = '';
8237: }
8238: }
8239: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
8240: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
8241: if ($crsenv{'internal.courseowner'} eq
8242: $env{'user.name'}.':'.$env{'user.domain'}) {
8243: $refused = '';
8244: }
8245: }
8246: }
8247: }
8248: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 8249: $refused = '';
1.1017 raeburn 8250: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 8251: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 8252: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 8253: my $wrongcc;
8254: if ($cnum =~ /^$match_community$/) {
8255: $wrongcc = 1 if ($role eq 'cc');
8256: } else {
8257: $wrongcc = 1 if ($role eq 'co');
8258: }
8259: unless ($wrongcc) {
8260: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
8261: if ($crsenv{'internal.courseowner'} eq
8262: $env{'user.name'}.':'.$env{'user.domain'}) {
8263: $refused = '';
8264: }
1.1017 raeburn 8265: }
8266: }
1.1183 raeburn 8267: } elsif ($context eq 'requestauthor') {
8268: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
8269: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
8270: if ($env{'environment.requestauthor'} eq 'automatic') {
8271: $refused = '';
8272: } else {
8273: my %domdefaults = &get_domain_defaults($udom);
8274: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
8275: my $checkbystatus;
8276: if ($env{'user.adv'}) {
8277: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
8278: if ($disposition eq 'automatic') {
8279: $refused = '';
8280: } elsif ($disposition eq '') {
8281: $checkbystatus = 1;
8282: }
8283: } else {
8284: $checkbystatus = 1;
8285: }
8286: if ($checkbystatus) {
8287: if ($env{'environment.inststatus'}) {
8288: my @inststatuses = split(/,/,$env{'environment.inststatus'});
8289: foreach my $type (@inststatuses) {
8290: if (($type ne '') &&
8291: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
8292: $refused = '';
8293: }
8294: }
8295: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
8296: $refused = '';
8297: }
8298: }
8299: }
8300: }
8301: }
1.1017 raeburn 8302: }
8303: if ($refused) {
1.947 raeburn 8304: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
8305: ' '.$role.' '.$end.' '.$start.' by '.
8306: $env{'user.name'}.' at '.$env{'user.domain'});
8307: return 'refused';
8308: }
1.932 raeburn 8309: }
1.1131 raeburn 8310: } elsif ($role eq 'au') {
8311: if ($url ne '/'.$udom.'/') {
8312: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
8313: ' to assign author role for '.$uname.':'.$udom.
8314: ' in domain: '.$url.' refused (wrong domain).');
8315: return 'refused';
8316: }
1.104 www 8317: }
1.21 www 8318: $mrole=$role;
8319: }
1.620 albertel 8320: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 8321: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 8322: if ($end) { $command.='_'.$end; }
1.21 www 8323: if ($start) {
8324: if ($end) {
1.81 www 8325: $command.='_'.$start;
1.21 www 8326: } else {
1.81 www 8327: $command.='_0_'.$start;
1.21 www 8328: }
8329: }
1.739 raeburn 8330: my $origstart = $start;
8331: my $origend = $end;
1.957 raeburn 8332: my $delflag;
1.357 www 8333: # actually delete
8334: if ($deleteflag) {
1.373 www 8335: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 8336: # modify command to delete the role
1.620 albertel 8337: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 8338: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 8339: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 8340: # set start and finish to negative values for userrolelog
8341: $start=-1;
8342: $end=-1;
1.957 raeburn 8343: $delflag = 1;
1.357 www 8344: }
8345: }
8346: # send command
1.349 www 8347: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 8348: # log new user role if status is ok
1.349 www 8349: if ($answer eq 'ok') {
1.663 raeburn 8350: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1184 raeburn 8351: if (($role eq 'cc') || ($role eq 'in') ||
8352: ($role eq 'ep') || ($role eq 'ad') ||
8353: ($role eq 'ta') || ($role eq 'st') ||
8354: ($role=~/^cr/) || ($role eq 'gr') ||
8355: ($role eq 'co')) {
1.1200 raeburn 8356: # for course roles, perform group memberships changes triggered by role change.
8357: unless ($role =~ /^gr/) {
8358: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
8359: $origstart,$selfenroll,$context);
8360: }
1.1184 raeburn 8361: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8362: $selfenroll,$context);
8363: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
8364: ($role eq 'au') || ($role eq 'dc')) {
8365: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8366: $context);
8367: } elsif (($role eq 'ca') || ($role eq 'aa')) {
8368: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8369: $context);
8370: }
1.1053 raeburn 8371: if ($role eq 'cc') {
8372: &autoupdate_coowners($url,$end,$start,$uname,$udom);
8373: }
1.349 www 8374: }
8375: return $answer;
1.169 harris41 8376: }
8377:
1.1053 raeburn 8378: sub autoupdate_coowners {
8379: my ($url,$end,$start,$uname,$udom) = @_;
8380: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
8381: if (($cdom ne '') && ($cnum ne '')) {
8382: my $now = time;
8383: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
8384: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
8385: my %coursehash = &coursedescription($cdom.'_'.$cnum);
8386: my $instcode = $coursehash{'internal.coursecode'};
8387: if ($instcode ne '') {
1.1056 raeburn 8388: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
8389: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 8390: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 8391: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
8392: if ($result eq 'valid') {
8393: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 8394: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8395: push(@newcoowners,$coowner);
8396: }
8397: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
8398: push(@newcoowners,$uname.':'.$udom);
8399: }
8400: @newcoowners = sort(@newcoowners);
8401: } else {
8402: push(@newcoowners,$uname.':'.$udom);
8403: }
8404: } else {
8405: if ($coursehash{'internal.co-owners'}) {
8406: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8407: unless ($coowner eq $uname.':'.$udom) {
8408: push(@newcoowners,$coowner);
8409: }
8410: }
8411: unless (@newcoowners > 0) {
8412: $delcoowners = 1;
8413: $coowners = '';
8414: }
8415: }
8416: }
8417: if (@newcoowners || $delcoowners) {
8418: &store_coowners($cdom,$cnum,$coursehash{'home'},
8419: $delcoowners,@newcoowners);
8420: }
8421: }
8422: }
8423: }
8424: }
8425: }
8426: }
8427:
8428: sub store_coowners {
8429: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
8430: my $cid = $cdom.'_'.$cnum;
8431: my ($coowners,$delresult,$putresult);
8432: if (@newcoowners) {
8433: $coowners = join(',',@newcoowners);
8434: my %coownershash = (
8435: 'internal.co-owners' => $coowners,
8436: );
8437: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
8438: if ($putresult eq 'ok') {
8439: if ($env{'course.'.$cid.'.num'} eq $cnum) {
8440: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
8441: }
8442: }
8443: }
8444: if ($delcoowners) {
8445: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
8446: if ($delresult eq 'ok') {
8447: if ($env{'course.'.$cid.'.internal.co-owners'}) {
8448: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
8449: }
8450: }
8451: }
8452: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
8453: my %crsinfo =
8454: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
8455: if (ref($crsinfo{$cid}) eq 'HASH') {
8456: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
8457: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
8458: }
8459: }
8460: }
8461:
1.169 harris41 8462: # -------------------------------------------------- Modify user authentication
1.197 www 8463: # Overrides without validation
8464:
1.169 harris41 8465: sub modifyuserauth {
8466: my ($udom,$uname,$umode,$upass)=@_;
8467: my $uhome=&homeserver($uname,$udom);
1.197 www 8468: unless (&allowed('mau',$udom)) { return 'refused'; }
8469: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 8470: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8471: ' in domain '.$env{'request.role.domain'});
1.169 harris41 8472: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
8473: &escape($upass),$uhome);
1.620 albertel 8474: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 8475: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
8476: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
8477: &log($udom,,$uname,$uhome,
1.620 albertel 8478: 'Authentication changed by '.$env{'user.domain'}.', '.
8479: $env{'user.name'}.', '.$umode.
1.197 www 8480: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 8481: unless ($reply eq 'ok') {
1.197 www 8482: &logthis('Authentication mode error: '.$reply);
1.169 harris41 8483: return 'error: '.$reply;
8484: }
1.170 harris41 8485: return 'ok';
1.80 www 8486: }
8487:
1.81 www 8488: # --------------------------------------------------------------- Modify a user
1.80 www 8489:
1.81 www 8490: sub modifyuser {
1.206 matthew 8491: my ($udom, $uname, $uid,
8492: $umode, $upass, $first,
8493: $middle, $last, $gene,
1.1058 raeburn 8494: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 8495: $udom= &LONCAPA::clean_domain($udom);
8496: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 8497: my $showcandelete = 'none';
8498: if (ref($candelete) eq 'ARRAY') {
8499: if (@{$candelete} > 0) {
8500: $showcandelete = join(', ',@{$candelete});
8501: }
8502: }
1.81 www 8503: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 8504: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 8505: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 8506: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
8507: ' desiredhome not specified').
1.620 albertel 8508: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8509: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 8510: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 8511: my $newuser;
8512: if ($uhome eq 'no_host') {
8513: $newuser = 1;
8514: }
1.80 www 8515: # ----------------------------------------------------------------- Create User
1.406 albertel 8516: if (($uhome eq 'no_host') &&
8517: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 8518: my $unhome='';
1.844 albertel 8519: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 8520: $unhome = $desiredhome;
1.620 albertel 8521: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
8522: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 8523: } else { # load balancing routine for determining $unhome
1.81 www 8524: my $loadm=10000000;
1.841 albertel 8525: my %servers = &get_servers($udom,'library');
8526: foreach my $tryserver (keys(%servers)) {
8527: my $answer=reply('load',$tryserver);
8528: if (($answer=~/\d+/) && ($answer<$loadm)) {
8529: $loadm=$answer;
8530: $unhome=$tryserver;
8531: }
1.80 www 8532: }
8533: }
8534: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 8535: return 'error: unable to find a home server for '.$uname.
8536: ' in domain '.$udom;
1.80 www 8537: }
8538: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
8539: &escape($upass),$unhome);
8540: unless ($reply eq 'ok') {
8541: return 'error: '.$reply;
8542: }
1.230 stredwic 8543: $uhome=&homeserver($uname,$udom,'true');
1.80 www 8544: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 8545: return 'error: unable verify users home machine.';
1.80 www 8546: }
1.209 matthew 8547: } # End of creation of new user
1.80 www 8548: # ---------------------------------------------------------------------- Add ID
8549: if ($uid) {
8550: $uid=~tr/A-Z/a-z/;
8551: my %uidhash=&idrget($udom,$uname);
1.196 www 8552: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
8553: && (!$forceid)) {
1.80 www 8554: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 8555: return 'error: user id "'.$uid.'" does not match '.
8556: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 8557: }
8558: } else {
8559: &idput($udom,($uname => $uid));
8560: }
8561: }
8562: # -------------------------------------------------------------- Add names, etc
1.313 matthew 8563: my @tmp=&get('environment',
1.899 raeburn 8564: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 8565: 'permanentemail','inststatus'],
1.134 albertel 8566: $udom,$uname);
1.1075 raeburn 8567: my (%names,%oldnames);
1.313 matthew 8568: if ($tmp[0] =~ m/^error:.*/) {
8569: %names=();
8570: } else {
8571: %names = @tmp;
1.1075 raeburn 8572: %oldnames = %names;
1.313 matthew 8573: }
1.388 www 8574: #
1.1058 raeburn 8575: # If name, email and/or uid are blank (e.g., because an uploaded file
8576: # of users did not contain them), do not overwrite existing values
8577: # unless field is in $candelete array ref.
8578: #
8579:
8580: my @fields = ('firstname','middlename','lastname','generation',
8581: 'permanentemail','id');
8582: my %newvalues;
8583: if (ref($candelete) eq 'ARRAY') {
8584: foreach my $field (@fields) {
8585: if (grep(/^\Q$field\E$/,@{$candelete})) {
8586: if ($field eq 'firstname') {
8587: $names{$field} = $first;
8588: } elsif ($field eq 'middlename') {
8589: $names{$field} = $middle;
8590: } elsif ($field eq 'lastname') {
8591: $names{$field} = $last;
8592: } elsif ($field eq 'generation') {
8593: $names{$field} = $gene;
8594: } elsif ($field eq 'permanentemail') {
8595: $names{$field} = $email;
8596: } elsif ($field eq 'id') {
8597: $names{$field} = $uid;
8598: }
8599: }
8600: }
8601: }
1.388 www 8602: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 8603: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 8604: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 8605: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 8606: if ($email) {
8607: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 8608: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 8609: }
1.899 raeburn 8610: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 8611: if (defined($inststatus)) {
8612: $names{'inststatus'} = '';
8613: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
8614: if (ref($usertypes) eq 'HASH') {
8615: my @okstatuses;
8616: foreach my $item (split(/:/,$inststatus)) {
8617: if (defined($usertypes->{$item})) {
8618: push(@okstatuses,$item);
8619: }
8620: }
8621: if (@okstatuses) {
8622: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
8623: }
8624: }
8625: }
1.1075 raeburn 8626: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 8627: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 8628: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 8629: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
8630: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
8631: } else {
8632: $logmsg .= ' during self creation';
8633: }
1.1075 raeburn 8634: my $changed;
8635: if ($newuser) {
8636: $changed = 1;
8637: } else {
8638: foreach my $field (@fields) {
8639: if ($names{$field} ne $oldnames{$field}) {
8640: $changed = 1;
8641: last;
8642: }
8643: }
8644: }
8645: unless ($changed) {
8646: $logmsg = 'No changes in user information needed for: '.$logmsg;
8647: &logthis($logmsg);
8648: return 'ok';
8649: }
8650: my $reply = &put('environment', \%names, $udom,$uname);
8651: if ($reply ne 'ok') {
8652: return 'error: '.$reply;
8653: }
1.1087 raeburn 8654: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
8655: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
8656: }
1.1075 raeburn 8657: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
8658: &devalidate_cache_new('namescache',$uname.':'.$udom);
8659: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 8660: &logthis($logmsg);
1.134 albertel 8661: return 'ok';
1.80 www 8662: }
8663:
1.81 www 8664: # -------------------------------------------------------------- Modify student
1.80 www 8665:
1.81 www 8666: sub modifystudent {
8667: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 8668: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.1216 raeburn 8669: $selfenroll,$context,$inststatus,$credits)=@_;
1.455 albertel 8670: if (!$cid) {
1.620 albertel 8671: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8672: return 'not_in_class';
8673: }
1.80 www 8674: }
8675: # --------------------------------------------------------------- Make the user
1.81 www 8676: my $reply=&modifyuser
1.209 matthew 8677: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 8678: $desiredhome,$email,$inststatus);
1.80 www 8679: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 8680: # This will cause &modify_student_enrollment to get the uid from the
1.1235 raeburn 8681: # student's environment
1.297 matthew 8682: $uid = undef if (!$forceid);
1.455 albertel 8683: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.1216 raeburn 8684: $gene,$usec,$end,$start,$type,$locktype,
8685: $cid,$selfenroll,$context,$credits);
1.297 matthew 8686: return $reply;
8687: }
8688:
8689: sub modify_student_enrollment {
1.1216 raeburn 8690: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
8691: $locktype,$cid,$selfenroll,$context,$credits) = @_;
1.455 albertel 8692: my ($cdom,$cnum,$chome);
8693: if (!$cid) {
1.620 albertel 8694: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8695: return 'not_in_class';
8696: }
1.620 albertel 8697: $cdom=$env{'course.'.$cid.'.domain'};
8698: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 8699: } else {
8700: ($cdom,$cnum)=split(/_/,$cid);
8701: }
1.620 albertel 8702: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 8703: if (!$chome) {
1.457 raeburn 8704: $chome=&homeserver($cnum,$cdom);
1.297 matthew 8705: }
1.455 albertel 8706: if (!$chome) { return 'unknown_course'; }
1.297 matthew 8707: # Make sure the user exists
1.81 www 8708: my $uhome=&homeserver($uname,$udom);
8709: if (($uhome eq '') || ($uhome eq 'no_host')) {
8710: return 'error: no such user';
8711: }
1.297 matthew 8712: # Get student data if we were not given enough information
8713: if (!defined($first) || $first eq '' ||
8714: !defined($last) || $last eq '' ||
8715: !defined($uid) || $uid eq '' ||
8716: !defined($middle) || $middle eq '' ||
8717: !defined($gene) || $gene eq '') {
1.294 matthew 8718: # They did not supply us with enough data to enroll the student, so
8719: # we need to pick up more information.
1.297 matthew 8720: my %tmp = &get('environment',
1.294 matthew 8721: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 8722: ,$udom,$uname);
8723:
1.800 albertel 8724: #foreach my $key (keys(%tmp)) {
8725: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 8726: #}
1.294 matthew 8727: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
8728: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
8729: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 8730: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 8731: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
8732: }
1.556 albertel 8733: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 8734: my $user = "$uname:$udom";
8735: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 8736: my $reply=cput('classlist',
1.1148 raeburn 8737: {$user =>
1.1216 raeburn 8738: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits) },
1.487 albertel 8739: $cdom,$cnum);
1.1148 raeburn 8740: if (($reply eq 'ok') || ($reply eq 'delayed')) {
8741: &devalidate_getsection_cache($udom,$uname,$cid);
8742: } else {
1.81 www 8743: return 'error: '.$reply;
8744: }
1.297 matthew 8745: # Add student role to user
1.83 www 8746: my $uurl='/'.$cid;
1.81 www 8747: $uurl=~s/\_/\//g;
8748: if ($usec) {
8749: $uurl.='/'.$usec;
8750: }
1.1148 raeburn 8751: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
8752: $selfenroll,$context);
8753: if ($result ne 'ok') {
8754: if ($old_entry{$user} ne '') {
8755: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
8756: } else {
8757: $reply = &del('classlist',[$user],$cdom,$cnum);
8758: }
8759: }
8760: return $result;
1.21 www 8761: }
8762:
1.556 albertel 8763: sub format_name {
8764: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
8765: my $name;
8766: if ($first ne 'lastname') {
8767: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
8768: } else {
8769: if ($lastname=~/\S/) {
8770: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
8771: $name=~s/\s+,/,/;
8772: } else {
8773: $name.= $firstname.' '.$middlename.' '.$generation;
8774: }
8775: }
8776: $name=~s/^\s+//;
8777: $name=~s/\s+$//;
8778: $name=~s/\s+/ /g;
8779: return $name;
8780: }
8781:
1.84 www 8782: # ------------------------------------------------- Write to course preferences
8783:
8784: sub writecoursepref {
8785: my ($courseid,%prefs)=@_;
8786: $courseid=~s/^\///;
8787: $courseid=~s/\_/\//g;
8788: my ($cdomain,$cnum)=split(/\//,$courseid);
8789: my $chome=homeserver($cnum,$cdomain);
8790: if (($chome eq '') || ($chome eq 'no_host')) {
8791: return 'error: no such course';
8792: }
8793: my $cstring='';
1.800 albertel 8794: foreach my $pref (keys(%prefs)) {
8795: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 8796: }
1.84 www 8797: $cstring=~s/\&$//;
8798: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
8799: }
8800:
8801: # ---------------------------------------------------------- Make/modify course
8802:
8803: sub createcourse {
1.741 raeburn 8804: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 8805: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 8806: $url=&declutter($url);
8807: my $cid='';
1.1028 raeburn 8808: if ($context eq 'requestcourses') {
8809: my $can_create = 0;
8810: my ($ownername,$ownerdom) = split(':',$course_owner);
8811: if ($udom eq $ownerdom) {
8812: if (&usertools_access($ownername,$ownerdom,$category,undef,
8813: $context)) {
8814: $can_create = 1;
8815: }
8816: } else {
8817: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
8818: $category);
8819: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
8820: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
8821: if (@curr > 0) {
8822: my @options = qw(approval validate autolimit);
8823: my $optregex = join('|',@options);
8824: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
8825: $can_create = 1;
8826: }
8827: }
8828: }
8829: }
8830: if ($can_create) {
8831: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
8832: unless (&allowed('ccc',$udom)) {
8833: return 'refused';
8834: }
1.1017 raeburn 8835: }
8836: } else {
8837: return 'refused';
8838: }
1.1028 raeburn 8839: } elsif (!&allowed('ccc',$udom)) {
8840: return 'refused';
1.84 www 8841: }
1.1011 raeburn 8842: # --------------------------------------------------------------- Get Unique ID
8843: my $uname;
8844: if ($cnum =~ /^$match_courseid$/) {
8845: my $chome=&homeserver($cnum,$udom,'true');
8846: if (($chome eq '') || ($chome eq 'no_host')) {
8847: $uname = $cnum;
8848: } else {
1.1038 raeburn 8849: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8850: }
8851: } else {
1.1038 raeburn 8852: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8853: }
8854: return $uname if ($uname =~ /^error/);
8855: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 8856: if (!defined($course_server)) {
8857: if (defined(&domain($udom,'primary'))) {
8858: $course_server = &domain($udom,'primary');
8859: } else {
8860: $course_server = $env{'user.home'};
8861: }
8862: }
8863: my %host_servers =
8864: &Apache::lonnet::get_servers($udom,'library');
8865: unless ($host_servers{$course_server}) {
8866: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 8867: }
1.84 www 8868: # ------------------------------------------------------------- Make the course
8869: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 8870: $course_server);
1.84 www 8871: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 8872: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 8873: if (($uhome eq '') || ($uhome eq 'no_host')) {
8874: return 'error: no such course';
8875: }
1.271 www 8876: # ----------------------------------------------------------------- Course made
1.516 raeburn 8877: # log existence
1.1029 raeburn 8878: my $now = time;
1.918 raeburn 8879: my $newcourse = {
8880: $udom.'_'.$uname => {
1.921 raeburn 8881: description => $description,
8882: inst_code => $inst_code,
8883: owner => $course_owner,
8884: type => $crstype,
1.1029 raeburn 8885: creator => $env{'user.name'}.':'.
8886: $env{'user.domain'},
8887: created => $now,
8888: context => $context,
1.918 raeburn 8889: },
8890: };
1.921 raeburn 8891: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 8892: # set toplevel url
1.271 www 8893: my $topurl=$url;
8894: unless ($nonstandard) {
8895: # ------------------------------------------ For standard courses, make top url
8896: my $mapurl=&clutter($url);
1.278 www 8897: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 8898: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 8899: <map>
8900: <resource id="1" type="start"></resource>
8901: <resource id="2" src="$mapurl"></resource>
8902: <resource id="3" type="finish"></resource>
8903: <link index="1" from="1" to="2"></link>
8904: <link index="2" from="2" to="3"></link>
8905: </map>
8906: ENDINITMAP
8907: $topurl=&declutter(
1.638 albertel 8908: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 8909: );
8910: }
8911: # ----------------------------------------------------------- Write preferences
1.84 www 8912: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 8913: ('description' => $description,
8914: 'url' => $topurl,
8915: 'internal.creator' => $env{'user.name'}.':'.
8916: $env{'user.domain'},
8917: 'internal.created' => $now,
8918: 'internal.creationcontext' => $context)
8919: );
1.84 www 8920: return '/'.$udom.'/'.$uname;
8921: }
8922:
1.1011 raeburn 8923: # ------------------------------------------------------------------- Create ID
8924: sub generate_coursenum {
1.1038 raeburn 8925: my ($udom,$crstype) = @_;
1.1011 raeburn 8926: my $domdesc = &domain($udom);
8927: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 8928: my $first;
8929: if ($crstype eq 'Community') {
8930: $first = '0';
8931: } else {
8932: $first = int(1+rand(9));
8933: }
8934: my $uname=$first.
1.1011 raeburn 8935: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8936: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8937: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8938: # ----------------------------------------------- Make sure that does not exist
8939: my $uhome=&homeserver($uname,$udom,'true');
8940: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 8941: if ($crstype eq 'Community') {
8942: $first = '0';
8943: } else {
8944: $first = int(1+rand(9));
8945: }
8946: $uname=$first.
1.1011 raeburn 8947: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8948: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8949: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8950: $uhome=&homeserver($uname,$udom,'true');
8951: unless (($uhome eq '') || ($uhome eq 'no_host')) {
8952: return 'error: unable to generate unique course-ID';
8953: }
8954: }
8955: return $uname;
8956: }
8957:
1.813 albertel 8958: sub is_course {
1.1167 droeschl 8959: my ($cdom, $cnum) = scalar(@_) == 1 ?
8960: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
8961:
8962: return unless $cdom and $cnum;
8963:
8964: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
8965: '.');
8966:
1.1219 raeburn 8967: return unless(exists($courses{$cdom.'_'.$cnum}));
1.1167 droeschl 8968: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 8969: }
8970:
1.1015 raeburn 8971: sub store_userdata {
8972: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 8973: my $result;
1.1016 raeburn 8974: if ($datakey ne '') {
1.1013 raeburn 8975: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 8976: if ($udom eq '' || $uname eq '') {
8977: $udom = $env{'user.domain'};
8978: $uname = $env{'user.name'};
8979: }
8980: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 8981: if (($uhome eq '') || ($uhome eq 'no_host')) {
8982: $result = 'error: no_host';
8983: } else {
8984: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
8985: $storehash->{'host'} = $perlvar{'lonHostID'};
8986:
8987: my $namevalue='';
8988: foreach my $key (keys(%{$storehash})) {
8989: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
8990: }
8991: $namevalue=~s/\&$//;
1.1224 raeburn 8992: unless ($namespace eq 'courserequests') {
8993: $datakey = &escape($datakey);
8994: }
1.1105 raeburn 8995: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
8996: $namevalue,$uhome);
1.1013 raeburn 8997: }
8998: } else {
8999: $result = 'error: data to store was not a hash reference';
9000: }
9001: } else {
9002: $result= 'error: invalid requestkey';
9003: }
9004: return $result;
9005: }
9006:
1.21 www 9007: # ---------------------------------------------------------- Assign Custom Role
9008:
9009: sub assigncustomrole {
1.957 raeburn 9010: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9011: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 9012: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 9013: }
9014:
9015: # ----------------------------------------------------------------- Revoke Role
9016:
9017: sub revokerole {
1.957 raeburn 9018: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9019: my $now=time;
1.965 raeburn 9020: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 9021: }
9022:
9023: # ---------------------------------------------------------- Revoke Custom Role
9024:
9025: sub revokecustomrole {
1.957 raeburn 9026: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9027: my $now=time;
1.357 www 9028: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 9029: $deleteflag,$selfenroll,$context);
1.17 www 9030: }
9031:
1.533 banghart 9032: # ------------------------------------------------------------ Disk usage
1.535 albertel 9033: sub diskusage {
1.955 raeburn 9034: my ($udom,$uname,$directorypath,$getpropath)=@_;
9035: $directorypath =~ s/\/$//;
9036: my $listing=&reply('du2:'.&escape($directorypath).':'
9037: .&escape($getpropath).':'.&escape($uname).':'
9038: .&escape($udom),homeserver($uname,$udom));
9039: if ($listing eq 'unknown_cmd') {
9040: if ($getpropath) {
9041: $directorypath = &propath($udom,$uname).'/'.$directorypath;
9042: }
9043: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
9044: }
1.514 albertel 9045: return $listing;
1.512 banghart 9046: }
9047:
1.566 banghart 9048: sub is_locked {
1.1096 raeburn 9049: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 9050: my @check;
9051: my $is_locked;
1.1093 raeburn 9052: push (@check,$file_name);
1.613 albertel 9053: my %locked = &get('file_permissions',\@check,
1.620 albertel 9054: $env{'user.domain'},$env{'user.name'});
1.615 albertel 9055: my ($tmp)=keys(%locked);
9056: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 9057:
1.566 banghart 9058: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 9059: $is_locked = 'false';
9060: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 9061: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 9062: $is_locked = 'true';
1.1096 raeburn 9063: if (ref($which) eq 'ARRAY') {
9064: push(@{$which},$entry);
9065: } else {
9066: last;
9067: }
1.745 raeburn 9068: }
9069: }
1.566 banghart 9070: } else {
9071: $is_locked = 'false';
9072: }
1.1093 raeburn 9073: return $is_locked;
1.566 banghart 9074: }
9075:
1.759 albertel 9076: sub declutter_portfile {
9077: my ($file) = @_;
1.833 albertel 9078: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 9079: return $file;
9080: }
9081:
1.559 banghart 9082: # ------------------------------------------------------------- Mark as Read Only
9083:
9084: sub mark_as_readonly {
9085: my ($domain,$user,$files,$what) = @_;
1.613 albertel 9086: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 9087: my ($tmp)=keys(%current_permissions);
9088: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 9089: foreach my $file (@{$files}) {
1.759 albertel 9090: $file = &declutter_portfile($file);
1.561 banghart 9091: push(@{$current_permissions{$file}},$what);
1.559 banghart 9092: }
1.613 albertel 9093: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9094: return;
9095: }
9096:
1.572 banghart 9097: # ------------------------------------------------------------Save Selected Files
9098:
9099: sub save_selected_files {
9100: my ($user, $path, @files) = @_;
9101: my $filename = $user."savedfiles";
1.573 banghart 9102: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 9103: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 9104: foreach my $file (@files) {
1.620 albertel 9105: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 9106: }
9107: foreach my $file (@other_files) {
1.574 banghart 9108: print (OUT $file."\n");
1.572 banghart 9109: }
1.574 banghart 9110: close (OUT);
1.572 banghart 9111: return 'ok';
9112: }
9113:
1.574 banghart 9114: sub clear_selected_files {
9115: my ($user) = @_;
9116: my $filename = $user."savedfiles";
1.1117 foxr 9117: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 9118: print (OUT undef);
9119: close (OUT);
9120: return ("ok");
9121: }
9122:
1.572 banghart 9123: sub files_in_path {
9124: my ($user, $path) = @_;
9125: my $filename = $user."savedfiles";
9126: my %return_files;
1.1117 foxr 9127: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 9128: while (my $line_in = <IN>) {
1.574 banghart 9129: chomp ($line_in);
9130: my @paths_and_file = split (m!/!, $line_in);
9131: my $file_part = pop (@paths_and_file);
9132: my $path_part = join ('/', @paths_and_file);
1.573 banghart 9133: $path_part.='/';
9134: my $path_and_file = $path_part.$file_part;
9135: if ($path_part eq $path) {
9136: $return_files{$file_part}= 'selected';
9137: }
9138: }
1.574 banghart 9139: close (IN);
9140: return (\%return_files);
1.572 banghart 9141: }
9142:
9143: # called in portfolio select mode, to show files selected NOT in current directory
9144: sub files_not_in_path {
9145: my ($user, $path) = @_;
9146: my $filename = $user."savedfiles";
9147: my @return_files;
9148: my $path_part;
1.1117 foxr 9149: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 9150: while (my $line = <IN>) {
1.572 banghart 9151: #ok, I know it's clunky, but I want it to work
1.800 albertel 9152: my @paths_and_file = split(m|/|, $line);
9153: my $file_part = pop(@paths_and_file);
9154: chomp($file_part);
9155: my $path_part = join('/', @paths_and_file);
1.572 banghart 9156: $path_part .= '/';
9157: my $path_and_file = $path_part.$file_part;
9158: if ($path_part ne $path) {
1.800 albertel 9159: push(@return_files, ($path_and_file));
1.572 banghart 9160: }
9161: }
1.800 albertel 9162: close(OUT);
1.574 banghart 9163: return (@return_files);
1.572 banghart 9164: }
9165:
1.1273 raeburn 9166: #------------------------------Submitted/Handedback Portfolio Files Versioning
9167:
9168: sub portfiles_versioning {
9169: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
9170: my $portfolio_root = '/userfiles/portfolio';
9171: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
9172: foreach my $file (@{$portfiles}) {
9173: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
9174: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
9175: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
9176: my $getpropath = 1;
9177: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
9178: $stu_name,$getpropath);
9179: my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
9180: my $new_answer =
9181: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
9182: if ($new_answer ne 'problem getting file') {
9183: push(@{$versioned_portfiles}, $directory.$new_answer);
9184: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
9185: [$symb,$env{'request.course.id'},'graded']);
9186: }
9187: }
9188: }
9189:
9190: sub get_next_version {
9191: my ($answer_name, $answer_ext, $dir_list) = @_;
9192: my $version;
9193: if (ref($dir_list) eq 'ARRAY') {
9194: foreach my $row (@{$dir_list}) {
9195: my ($file) = split(/\&/,$row,2);
9196: my ($file_name,$file_version,$file_ext) =
9197: &file_name_version_ext($file);
9198: if (($file_name eq $answer_name) &&
9199: ($file_ext eq $answer_ext)) {
9200: # gets here if filename and extension match,
9201: # regardless of version
9202: if ($file_version ne '') {
9203: # a versioned file is found so save it for later
9204: if ($file_version > $version) {
9205: $version = $file_version;
9206: }
9207: }
9208: }
9209: }
9210: }
9211: $version ++;
9212: return($version);
9213: }
9214:
9215: sub version_selected_portfile {
9216: my ($domain,$stu_name,$directory,$file_name,$version) = @_;
9217: my ($answer_name,$answer_ver,$answer_ext) =
9218: &file_name_version_ext($file_name);
9219: my $new_answer;
9220: $env{'form.copy'} =
9221: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
9222: if($env{'form.copy'} eq '-1') {
9223: $new_answer = 'problem getting file';
9224: } else {
9225: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
9226: my $copy_result =
9227: &finishuserfileupload($stu_name,$domain,'copy',
9228: '/portfolio'.$directory.$new_answer);
9229: }
9230: undef($env{'form.copy'});
9231: return ($new_answer);
9232: }
9233:
9234: sub file_name_version_ext {
9235: my ($file)=@_;
9236: my @file_parts = split(/\./, $file);
9237: my ($name,$version,$ext);
9238: if (@file_parts > 1) {
9239: $ext=pop(@file_parts);
9240: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
9241: $version=pop(@file_parts);
9242: }
9243: $name=join('.',@file_parts);
9244: } else {
9245: $name=join('.',@file_parts);
9246: }
9247: return($name,$version,$ext);
9248: }
9249:
1.745 raeburn 9250: #----------------------------------------------Get portfolio file permissions
1.629 banghart 9251:
1.745 raeburn 9252: sub get_portfile_permissions {
9253: my ($domain,$user) = @_;
1.613 albertel 9254: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 9255: my ($tmp)=keys(%current_permissions);
9256: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9257: return \%current_permissions;
9258: }
9259:
9260: #---------------------------------------------Get portfolio file access controls
9261:
1.749 raeburn 9262: sub get_access_controls {
1.745 raeburn 9263: my ($current_permissions,$group,$file) = @_;
1.769 albertel 9264: my %access;
9265: my $real_file = $file;
9266: $file =~ s/\.meta$//;
1.745 raeburn 9267: if (defined($file)) {
1.749 raeburn 9268: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
9269: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 9270: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 9271: }
9272: }
1.745 raeburn 9273: } else {
1.749 raeburn 9274: foreach my $key (keys(%{$current_permissions})) {
9275: if ($key =~ /\0accesscontrol$/) {
9276: if (defined($group)) {
9277: if ($key !~ m-^\Q$group\E/-) {
9278: next;
9279: }
9280: }
9281: my ($fullpath) = split(/\0/,$key);
9282: if (ref($$current_permissions{$key}) eq 'HASH') {
9283: foreach my $control (keys(%{$$current_permissions{$key}})) {
9284: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
9285: }
9286: }
9287: }
9288: }
9289: }
9290: return %access;
9291: }
9292:
9293: sub modify_access_controls {
9294: my ($file_name,$changes,$domain,$user)=@_;
9295: my ($outcome,$deloutcome);
9296: my %store_permissions;
9297: my %new_values;
9298: my %new_control;
9299: my %translation;
9300: my @deletions = ();
9301: my $now = time;
9302: if (exists($$changes{'activate'})) {
9303: if (ref($$changes{'activate'}) eq 'HASH') {
9304: my @newitems = sort(keys(%{$$changes{'activate'}}));
9305: my $numnew = scalar(@newitems);
9306: for (my $i=0; $i<$numnew; $i++) {
9307: my $newkey = $newitems[$i];
9308: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 9309: if ($newkey =~ /^\d+:/) {
9310: $newkey =~ s/^(\d+)/$newid/;
9311: $translation{$1} = $newid;
9312: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
9313: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
9314: $translation{$1} = $newid;
9315: }
1.749 raeburn 9316: $new_values{$file_name."\0".$newkey} =
9317: $$changes{'activate'}{$newitems[$i]};
9318: $new_control{$newkey} = $now;
9319: }
9320: }
9321: }
9322: my %todelete;
9323: my %changed_items;
9324: foreach my $action ('delete','update') {
9325: if (exists($$changes{$action})) {
9326: if (ref($$changes{$action}) eq 'HASH') {
9327: foreach my $key (keys(%{$$changes{$action}})) {
9328: my ($itemnum) = ($key =~ /^([^:]+):/);
9329: if ($action eq 'delete') {
9330: $todelete{$itemnum} = 1;
9331: } else {
9332: $changed_items{$itemnum} = $key;
9333: }
9334: }
1.745 raeburn 9335: }
9336: }
1.749 raeburn 9337: }
9338: # get lock on access controls for file.
9339: my $lockhash = {
9340: $file_name."\0".'locked_access_records' => $env{'user.name'}.
9341: ':'.$env{'user.domain'},
9342: };
9343: my $tries = 0;
9344: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
9345:
9346: while (($gotlock ne 'ok') && $tries <3) {
9347: $tries ++;
9348: sleep 1;
9349: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
9350: }
9351: if ($gotlock eq 'ok') {
9352: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
9353: my ($tmp)=keys(%curr_permissions);
9354: if ($tmp=~/^error:/) { undef(%curr_permissions); }
9355: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
9356: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
9357: if (ref($curr_controls) eq 'HASH') {
9358: foreach my $control_item (keys(%{$curr_controls})) {
9359: my ($itemnum) = ($control_item =~ /^([^:]+):/);
9360: if (defined($todelete{$itemnum})) {
9361: push(@deletions,$file_name."\0".$control_item);
9362: } else {
9363: if (defined($changed_items{$itemnum})) {
9364: $new_control{$changed_items{$itemnum}} = $now;
9365: push(@deletions,$file_name."\0".$control_item);
9366: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
9367: } else {
9368: $new_control{$control_item} = $$curr_controls{$control_item};
9369: }
9370: }
1.745 raeburn 9371: }
9372: }
9373: }
1.970 raeburn 9374: my ($group);
9375: if (&is_course($domain,$user)) {
9376: ($group,my $file) = split(/\//,$file_name,2);
9377: }
1.749 raeburn 9378: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
9379: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
9380: $outcome = &put('file_permissions',\%new_values,$domain,$user);
9381: # remove lock
9382: my @del_lock = ($file_name."\0".'locked_access_records');
9383: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 9384: my $sqlresult =
1.970 raeburn 9385: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 9386: $group);
1.749 raeburn 9387: } else {
9388: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 9389: }
1.749 raeburn 9390: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 9391: }
9392:
1.827 raeburn 9393: sub make_public_indefinitely {
1.1271 raeburn 9394: my (@requrl) = @_;
9395: return &automated_portfile_access('public',\@requrl);
9396: }
9397:
9398: sub automated_portfile_access {
9399: my ($accesstype,$addsref,$delsref,$info) = @_;
1.1273 raeburn 9400: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) {
9401: return 'invalid';
9402: }
1.1271 raeburn 9403: my %urls;
9404: if (ref($addsref) eq 'ARRAY') {
9405: foreach my $requrl (@{$addsref}) {
9406: if (&is_portfolio_url($requrl)) {
9407: unless (exists($urls{$requrl})) {
9408: $urls{$requrl} = 'add';
9409: }
9410: }
9411: }
9412: }
9413: if (ref($delsref) eq 'ARRAY') {
9414: foreach my $requrl (@{$delsref}) {
9415: if (&is_portfolio_url($requrl)) {
9416: unless (exists($urls{$requrl})) {
9417: $urls{$requrl} = 'delete';
9418: }
9419: }
9420: }
9421: }
9422: unless (keys(%urls)) {
9423: return 'invalid';
9424: }
9425: my $ip;
9426: if ($accesstype eq 'ip') {
9427: if (ref($info) eq 'HASH') {
9428: if ($info->{'ip'} ne '') {
9429: $ip = $info->{'ip'};
9430: }
9431: }
9432: if ($ip eq '') {
9433: return 'invalid';
9434: }
9435: }
9436: my $errors;
1.827 raeburn 9437: my $now = time;
1.1271 raeburn 9438: my %current_perms;
9439: foreach my $requrl (sort(keys(%urls))) {
9440: my $action;
9441: if ($urls{$requrl} eq 'add') {
9442: $action = 'activate';
9443: } else {
9444: $action = 'none';
9445: }
9446: my $aclnum = 0;
1.827 raeburn 9447: my (undef,$udom,$unum,$file_name,$group) =
9448: &parse_portfolio_url($requrl);
1.1271 raeburn 9449: unless (exists($current_perms{$unum.':'.$udom})) {
9450: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
9451: }
9452: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
1.827 raeburn 9453: $group,$file_name);
9454: foreach my $key (keys(%{$access_controls{$file_name}})) {
9455: my ($num,$scope,$end,$start) =
9456: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
1.1271 raeburn 9457: if ($scope eq $accesstype) {
9458: if (($start <= $now) && ($end == 0)) {
9459: if ($accesstype eq 'ip') {
9460: if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
9461: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
9462: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
9463: if ($urls{$requrl} eq 'add') {
9464: $action = 'none';
9465: last;
9466: } else {
9467: $action = 'delete';
9468: $aclnum = $num;
9469: last;
9470: }
9471: }
9472: }
9473: }
9474: } elsif ($accesstype eq 'public') {
9475: if ($urls{$requrl} eq 'add') {
9476: $action = 'none';
9477: last;
9478: } else {
9479: $action = 'delete';
9480: $aclnum = $num;
9481: last;
9482: }
9483: }
9484: } elsif ($accesstype eq 'public') {
1.827 raeburn 9485: $action = 'update';
9486: $aclnum = $num;
1.1271 raeburn 9487: last;
1.827 raeburn 9488: }
9489: }
9490: }
9491: if ($action eq 'none') {
1.1271 raeburn 9492: next;
1.827 raeburn 9493: } else {
9494: my %changes;
9495: my $newend = 0;
9496: my $newstart = $now;
1.1271 raeburn 9497: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
1.827 raeburn 9498: $changes{$action}{$newkey} = {
1.1271 raeburn 9499: type => $accesstype,
1.827 raeburn 9500: time => {
9501: start => $newstart,
9502: end => $newend,
9503: },
9504: };
1.1271 raeburn 9505: if ($accesstype eq 'ip') {
9506: $changes{$action}{$newkey}{'ip'} = [$ip];
9507: }
1.827 raeburn 9508: my ($outcome,$deloutcome,$new_values,$translation) =
9509: &modify_access_controls($file_name,\%changes,$udom,$unum);
1.1271 raeburn 9510: unless ($outcome eq 'ok') {
9511: $errors .= $outcome.' ';
9512: }
1.827 raeburn 9513: }
1.1271 raeburn 9514: }
9515: if ($errors) {
9516: $errors =~ s/\s$//;
9517: return $errors;
1.827 raeburn 9518: } else {
1.1271 raeburn 9519: return 'ok';
1.827 raeburn 9520: }
9521: }
9522:
1.745 raeburn 9523: #------------------------------------------------------Get Marked as Read Only
9524:
9525: sub get_marked_as_readonly {
9526: my ($domain,$user,$what,$group) = @_;
9527: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 9528: my @readonly_files;
1.629 banghart 9529: my $cmp1=$what;
9530: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 9531: while (my ($file_name,$value) = each(%{$current_permissions})) {
9532: if (defined($group)) {
9533: if ($file_name !~ m-^\Q$group\E/-) {
9534: next;
9535: }
9536: }
1.561 banghart 9537: if (ref($value) eq "ARRAY"){
9538: foreach my $stored_what (@{$value}) {
1.629 banghart 9539: my $cmp2=$stored_what;
1.759 albertel 9540: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 9541: $cmp2=join('',@{$stored_what});
1.745 raeburn 9542: }
1.629 banghart 9543: if ($cmp1 eq $cmp2) {
1.561 banghart 9544: push(@readonly_files, $file_name);
1.745 raeburn 9545: last;
1.563 banghart 9546: } elsif (!defined($what)) {
9547: push(@readonly_files, $file_name);
1.745 raeburn 9548: last;
1.561 banghart 9549: }
9550: }
1.745 raeburn 9551: }
1.561 banghart 9552: }
9553: return @readonly_files;
9554: }
1.577 banghart 9555: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 9556:
1.577 banghart 9557: sub get_marked_as_readonly_hash {
1.745 raeburn 9558: my ($current_permissions,$group,$what) = @_;
1.577 banghart 9559: my %readonly_files;
1.745 raeburn 9560: while (my ($file_name,$value) = each(%{$current_permissions})) {
9561: if (defined($group)) {
9562: if ($file_name !~ m-^\Q$group\E/-) {
9563: next;
9564: }
9565: }
1.577 banghart 9566: if (ref($value) eq "ARRAY"){
9567: foreach my $stored_what (@{$value}) {
1.745 raeburn 9568: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 9569: foreach my $lock_descriptor(@{$stored_what}) {
9570: if ($lock_descriptor eq 'graded') {
9571: $readonly_files{$file_name} = 'graded';
9572: } elsif ($lock_descriptor eq 'handback') {
9573: $readonly_files{$file_name} = 'handback';
9574: } else {
9575: if (!exists($readonly_files{$file_name})) {
9576: $readonly_files{$file_name} = 'locked';
9577: }
9578: }
1.745 raeburn 9579: }
1.750 banghart 9580: }
1.577 banghart 9581: }
9582: }
9583: }
9584: return %readonly_files;
9585: }
1.559 banghart 9586: # ------------------------------------------------------------ Unmark as Read Only
9587:
9588: sub unmark_as_readonly {
1.629 banghart 9589: # unmarks $file_name (if $file_name is defined), or all files locked by $what
9590: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 9591: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 9592: $file_name = &declutter_portfile($file_name);
1.634 albertel 9593: my $symb_crs = $what;
9594: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 9595: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 9596: my ($tmp)=keys(%current_permissions);
9597: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9598: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 9599: foreach my $file (@readonly_files) {
1.759 albertel 9600: my $clean_file = &declutter_portfile($file);
9601: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 9602: my $current_locks = $current_permissions{$file};
1.563 banghart 9603: my @new_locks;
9604: my @del_keys;
9605: if (ref($current_locks) eq "ARRAY"){
9606: foreach my $locker (@{$current_locks}) {
1.632 albertel 9607: my $compare=$locker;
1.749 raeburn 9608: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 9609: $compare=join('',@{$locker});
1.746 raeburn 9610: if ($compare ne $symb_crs) {
9611: push(@new_locks, $locker);
9612: }
1.563 banghart 9613: }
9614: }
1.650 albertel 9615: if (scalar(@new_locks) > 0) {
1.563 banghart 9616: $current_permissions{$file} = \@new_locks;
9617: } else {
9618: push(@del_keys, $file);
1.613 albertel 9619: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 9620: delete($current_permissions{$file});
1.563 banghart 9621: }
9622: }
1.561 banghart 9623: }
1.613 albertel 9624: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9625: return;
9626: }
1.512 banghart 9627:
1.17 www 9628: # ------------------------------------------------------------ Directory lister
9629:
9630: sub dirlist {
1.955 raeburn 9631: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 9632: $uri=~s/^\///;
9633: $uri=~s/\/$//;
1.253 stredwic 9634: my ($udom, $uname);
1.955 raeburn 9635: if ($getuserdir) {
1.253 stredwic 9636: $udom = $userdomain;
9637: $uname = $username;
1.955 raeburn 9638: } else {
9639: (undef,$udom,$uname)=split(/\//,$uri);
9640: if(defined($userdomain)) {
9641: $udom = $userdomain;
9642: }
9643: if(defined($username)) {
9644: $uname = $username;
9645: }
1.253 stredwic 9646: }
1.955 raeburn 9647: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 9648:
1.955 raeburn 9649: $dirRoot = $perlvar{'lonDocRoot'};
9650: if (defined($getpropath)) {
9651: $dirRoot = &propath($udom,$uname);
1.253 stredwic 9652: $dirRoot =~ s/\/$//;
1.955 raeburn 9653: } elsif (defined($getuserdir)) {
9654: my $subdir=$uname.'__';
9655: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
9656: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
9657: ."/$udom/$subdir/$uname";
9658: } elsif (defined($alternateRoot)) {
9659: $dirRoot = $alternateRoot;
1.751 banghart 9660: }
1.253 stredwic 9661:
9662: if($udom) {
9663: if($uname) {
1.1135 raeburn 9664: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 9665: if ($uhome eq 'no_host') {
9666: return ([],'no_host');
9667: }
1.955 raeburn 9668: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 9669: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 9670: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 9671: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9672: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 9673: } else {
9674: @listing_results = map { &unescape($_); } split(/:/,$listing);
9675: }
1.605 matthew 9676: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9677: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 9678: @listing_results = split(/:/,$listing);
9679: } else {
9680: @listing_results = map { &unescape($_); } split(/:/,$listing);
9681: }
1.1135 raeburn 9682: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 9683: ($listing eq 'rejected') || ($listing eq 'refused') ||
9684: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9685: return ([],$listing);
9686: } else {
9687: return (\@listing_results);
1.1135 raeburn 9688: }
1.955 raeburn 9689: } elsif(!$alternateRoot) {
1.1136 raeburn 9690: my (%allusers,%listerror);
1.841 albertel 9691: my %servers = &get_servers($udom,'library');
1.955 raeburn 9692: foreach my $tryserver (keys(%servers)) {
9693: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
9694: &escape($udom),$tryserver);
9695: if ($listing eq 'unknown_cmd') {
9696: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
9697: $udom, $tryserver);
9698: } else {
9699: @listing_results = map { &unescape($_); } split(/:/,$listing);
9700: }
1.841 albertel 9701: if ($listing eq 'unknown_cmd') {
9702: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
9703: $udom, $tryserver);
9704: @listing_results = split(/:/,$listing);
9705: } else {
9706: @listing_results =
9707: map { &unescape($_); } split(/:/,$listing);
9708: }
1.1136 raeburn 9709: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
9710: ($listing eq 'rejected') || ($listing eq 'refused') ||
9711: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9712: $listerror{$tryserver} = $listing;
9713: } else {
1.841 albertel 9714: foreach my $line (@listing_results) {
9715: my ($entry) = split(/&/,$line,2);
9716: $allusers{$entry} = 1;
9717: }
9718: }
1.253 stredwic 9719: }
1.1136 raeburn 9720: my @alluserslist=();
1.800 albertel 9721: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 9722: push(@alluserslist,$user.'&user');
1.253 stredwic 9723: }
1.1136 raeburn 9724: return (\@alluserslist);
1.253 stredwic 9725: } else {
1.1136 raeburn 9726: return ([],'missing username');
1.253 stredwic 9727: }
1.955 raeburn 9728: } elsif(!defined($getpropath)) {
1.1136 raeburn 9729: my $path = $perlvar{'lonDocRoot'}.'/res/';
9730: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
9731: return (\@all_domains);
1.955 raeburn 9732: } else {
1.1136 raeburn 9733: return ([],'missing domain');
1.275 stredwic 9734: }
9735: }
9736:
9737: # --------------------------------------------- GetFileTimestamp
9738: # This function utilizes dirlist and returns the date stamp for
9739: # when it was last modified. It will also return an error of -1
9740: # if an error occurs
9741:
9742: sub GetFileTimestamp {
1.955 raeburn 9743: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 9744: $studentDomain = &LONCAPA::clean_domain($studentDomain);
9745: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 9746: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
9747: undef,$getuserdir);
9748: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9749: return -1;
9750: }
9751: if (ref($fileref) eq 'ARRAY') {
9752: my @stats = split('&',$fileref->[0]);
1.375 matthew 9753: # @stats contains first the filename, then the stat output
9754: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 9755: } else {
9756: return -1;
1.253 stredwic 9757: }
1.26 www 9758: }
9759:
1.712 albertel 9760: sub stat_file {
9761: my ($uri) = @_;
1.787 albertel 9762: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 9763:
1.955 raeburn 9764: my ($udom,$uname,$file);
1.712 albertel 9765: if ($uri =~ m-^/(uploaded|editupload)/-) {
9766: ($udom,$uname,$file) =
1.811 albertel 9767: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 9768: $file = 'userfiles/'.$file;
9769: }
9770: if ($uri =~ m-^/res/-) {
9771: ($udom,$uname) =
1.807 albertel 9772: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 9773: $file = $uri;
9774: }
9775:
9776: if (!$udom || !$uname || !$file) {
9777: # unable to handle the uri
9778: return ();
9779: }
1.956 raeburn 9780: my $getpropath;
9781: if ($file =~ /^userfiles\//) {
9782: $getpropath = 1;
9783: }
1.1136 raeburn 9784: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
9785: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9786: return ();
9787: } else {
9788: if (ref($listref) eq 'ARRAY') {
9789: my @stats = split('&',$listref->[0]);
9790: shift(@stats); #filename is first
9791: return @stats;
9792: }
1.712 albertel 9793: }
9794: return ();
9795: }
9796:
1.26 www 9797: # -------------------------------------------------------- Value of a Condition
9798:
1.713 albertel 9799: # gets the value of a specific preevaluated condition
9800: # stored in the string $env{user.state.<cid>}
9801: # or looks up a condition reference in the bighash and if if hasn't
9802: # already been evaluated recurses into docondval to get the value of
9803: # the condition, then memoizing it to
9804: # $env{user.state.<cid>.<condition>}
1.40 www 9805: sub directcondval {
9806: my $number=shift;
1.620 albertel 9807: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 9808: &Apache::lonuserstate::evalstate();
9809: }
1.713 albertel 9810: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
9811: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
9812: } elsif ($number =~ /^_/) {
9813: my $sub_condition;
9814: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9815: &GDBM_READER(),0640)) {
9816: $sub_condition=$bighash{'conditions'.$number};
9817: untie(%bighash);
9818: }
9819: my $value = &docondval($sub_condition);
1.949 raeburn 9820: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 9821: return $value;
9822: }
1.620 albertel 9823: if ($env{'user.state.'.$env{'request.course.id'}}) {
9824: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 9825: } else {
9826: return 2;
9827: }
9828: }
9829:
1.713 albertel 9830: # get the collection of conditions for this resource
1.26 www 9831: sub condval {
9832: my $condidx=shift;
1.54 www 9833: my $allpathcond='';
1.713 albertel 9834: foreach my $cond (split(/\|/,$condidx)) {
9835: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
9836: $allpathcond.=
9837: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
9838: }
1.191 harris41 9839: }
1.54 www 9840: $allpathcond=~s/\|$//;
1.713 albertel 9841: return &docondval($allpathcond);
9842: }
9843:
9844: #evaluates an expression of conditions
9845: sub docondval {
9846: my ($allpathcond) = @_;
9847: my $result=0;
9848: if ($env{'request.course.id'}
9849: && defined($allpathcond)) {
9850: my $operand='|';
9851: my @stack;
9852: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
9853: if ($chunk eq '(') {
9854: push @stack,($operand,$result);
9855: } elsif ($chunk eq ')') {
9856: my $before=pop @stack;
9857: if (pop @stack eq '&') {
9858: $result=$result>$before?$before:$result;
9859: } else {
9860: $result=$result>$before?$result:$before;
9861: }
9862: } elsif (($chunk eq '&') || ($chunk eq '|')) {
9863: $operand=$chunk;
9864: } else {
9865: my $new=directcondval($chunk);
9866: if ($operand eq '&') {
9867: $result=$result>$new?$new:$result;
9868: } else {
9869: $result=$result>$new?$result:$new;
9870: }
9871: }
9872: }
1.26 www 9873: }
9874: return $result;
1.421 albertel 9875: }
9876:
9877: # ---------------------------------------------------- Devalidate courseresdata
9878:
9879: sub devalidatecourseresdata {
9880: my ($coursenum,$coursedomain)=@_;
9881: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9882: &devalidate_cache_new('courseres',$hashid);
1.28 www 9883: }
9884:
1.763 www 9885:
1.200 www 9886: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 9887: #
9888: # Parameters:
9889: # $coursenum - Number of the course.
9890: # $coursedomain - Domain at which the course was created.
9891: # Returns:
9892: # A hash of the course parameters along (I think) with timestamps
9893: # and version info.
1.877 foxr 9894:
1.624 albertel 9895: sub get_courseresdata {
9896: my ($coursenum,$coursedomain)=@_;
1.200 www 9897: my $coursehom=&homeserver($coursenum,$coursedomain);
9898: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9899: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 9900: my %dumpreply;
1.417 albertel 9901: unless (defined($cached)) {
1.624 albertel 9902: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 9903: $result=\%dumpreply;
1.251 albertel 9904: my ($tmp) = keys(%dumpreply);
9905: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 9906: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 9907: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
9908: return $tmp;
1.416 albertel 9909: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 9910: $result=undef;
1.599 albertel 9911: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 9912: }
9913: }
1.624 albertel 9914: return $result;
9915: }
9916:
1.633 albertel 9917: sub devalidateuserresdata {
9918: my ($uname,$udom)=@_;
9919: my $hashid="$udom:$uname";
9920: &devalidate_cache_new('userres',$hashid);
9921: }
9922:
1.624 albertel 9923: sub get_userresdata {
9924: my ($uname,$udom)=@_;
9925: #most student don\'t have any data set, check if there is some data
9926: if (&EXT_cache_status($udom,$uname)) { return undef; }
9927:
9928: my $hashid="$udom:$uname";
9929: my ($result,$cached)=&is_cached_new('userres',$hashid);
9930: if (!defined($cached)) {
9931: my %resourcedata=&dump('resourcedata',$udom,$uname);
9932: $result=\%resourcedata;
9933: &do_cache_new('userres',$hashid,$result,600);
9934: }
9935: my ($tmp)=keys(%$result);
9936: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
9937: return $result;
9938: }
9939: #error 2 occurs when the .db doesn't exist
9940: if ($tmp!~/error: 2 /) {
1.672 albertel 9941: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 9942: " Trying to get resource data for ".
9943: $uname." at ".$udom.": ".
9944: $tmp."</font>");
9945: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 9946: #&EXT_cache_set($udom,$uname);
9947: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 9948: undef($tmp); # not really an error so don't send it back
1.624 albertel 9949: }
9950: return $tmp;
9951: }
1.879 foxr 9952: #----------------------------------------------- resdata - return resource data
9953: # Purpose:
9954: # Return resource data for either users or for a course.
9955: # Parameters:
9956: # $name - Course/user name.
9957: # $domain - Name of the domain the user/course is registered on.
9958: # $type - Type of thing $name is (must be 'course' or 'user'
9959: # @which - Array of names of resources desired.
9960: # Returns:
9961: # The value of the first reasource in @which that is found in the
9962: # resource hash.
9963: # Exceptional Conditions:
9964: # If the $type passed in is not valid (not the string 'course' or
9965: # 'user', an undefined reference is returned.
9966: # If none of the resources are found, an undef is returned
1.624 albertel 9967: sub resdata {
9968: my ($name,$domain,$type,@which)=@_;
9969: my $result;
9970: if ($type eq 'course') {
9971: $result=&get_courseresdata($name,$domain);
9972: } elsif ($type eq 'user') {
9973: $result=&get_userresdata($name,$domain);
9974: }
9975: if (!ref($result)) { return $result; }
1.251 albertel 9976: foreach my $item (@which) {
1.927 albertel 9977: if (defined($result->{$item->[0]})) {
9978: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 9979: }
1.250 albertel 9980: }
1.291 albertel 9981: return undef;
1.200 www 9982: }
9983:
1.1236 raeburn 9984: sub get_numsuppfiles {
9985: my ($cnum,$cdom,$ignorecache)=@_;
9986: my $hashid=$cnum.':'.$cdom;
9987: my ($suppcount,$cached);
9988: unless ($ignorecache) {
9989: ($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
9990: }
9991: unless (defined($cached)) {
9992: my $chome=&homeserver($cnum,$cdom);
9993: unless ($chome eq 'no_host') {
9994: ($suppcount,my $errors) = (0,0);
9995: my $suppmap = 'supplemental.sequence';
9996: ($suppcount,$errors) =
9997: &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
9998: }
9999: &do_cache_new('suppcount',$hashid,$suppcount,600);
10000: }
10001: return $suppcount;
10002: }
10003:
1.379 matthew 10004: #
10005: # EXT resource caching routines
10006: #
10007:
10008: sub clear_EXT_cache_status {
1.383 albertel 10009: &delenv('cache.EXT.');
1.379 matthew 10010: }
10011:
10012: sub EXT_cache_status {
10013: my ($target_domain,$target_user) = @_;
1.383 albertel 10014: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 10015: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 10016: # We know already the user has no data
10017: return 1;
10018: } else {
10019: return 0;
10020: }
10021: }
10022:
10023: sub EXT_cache_set {
10024: my ($target_domain,$target_user) = @_;
1.383 albertel 10025: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 10026: #&appenv({$cachename => time});
1.379 matthew 10027: }
10028:
1.28 www 10029: # --------------------------------------------------------- Value of a Variable
1.58 www 10030: sub EXT {
1.715 albertel 10031:
1.1228 raeburn 10032: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
1.68 www 10033: unless ($varname) { return ''; }
1.218 albertel 10034: #get real user name/domain, courseid and symb
10035: my $courseid;
1.359 albertel 10036: my $publicuser;
1.427 www 10037: if ($symbparm) {
10038: $symbparm=&get_symb_from_alias($symbparm);
10039: }
1.218 albertel 10040: if (!($uname && $udom)) {
1.790 albertel 10041: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 10042: if (!$symbparm) { $symbparm=$cursymb; }
10043: } else {
1.620 albertel 10044: $courseid=$env{'request.course.id'};
1.218 albertel 10045: }
1.48 www 10046: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
10047: my $rest;
1.320 albertel 10048: if (defined($therest[0])) {
1.48 www 10049: $rest=join('.',@therest);
10050: } else {
10051: $rest='';
10052: }
1.320 albertel 10053:
1.57 www 10054: my $qualifierrest=$qualifier;
10055: if ($rest) { $qualifierrest.='.'.$rest; }
10056: my $spacequalifierrest=$space;
10057: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 10058: if ($realm eq 'user') {
1.48 www 10059: # --------------------------------------------------------------- user.resource
10060: if ($space eq 'resource') {
1.651 albertel 10061: if ( (defined($Apache::lonhomework::parsing_a_problem)
10062: || defined($Apache::lonhomework::parsing_a_task))
10063: &&
1.744 albertel 10064: ($symbparm eq &symbread()) ) {
10065: # if we are in the middle of processing the resource the
10066: # get the value we are planning on committing
10067: if (defined($Apache::lonhomework::results{$qualifierrest})) {
10068: return $Apache::lonhomework::results{$qualifierrest};
10069: } else {
10070: return $Apache::lonhomework::history{$qualifierrest};
10071: }
1.335 albertel 10072: } else {
1.359 albertel 10073: my %restored;
1.620 albertel 10074: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 10075: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
10076: } else {
10077: %restored=&restore($symbparm,$courseid,$udom,$uname);
10078: }
1.335 albertel 10079: return $restored{$qualifierrest};
10080: }
1.48 www 10081: # ----------------------------------------------------------------- user.access
10082: } elsif ($space eq 'access') {
1.218 albertel 10083: # FIXME - not supporting calls for a specific user
1.48 www 10084: return &allowed($qualifier,$rest);
10085: # ------------------------------------------ user.preferences, user.environment
10086: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 10087: if (($uname eq $env{'user.name'}) &&
10088: ($udom eq $env{'user.domain'})) {
10089: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 10090: } else {
1.359 albertel 10091: my %returnhash;
10092: if (!$publicuser) {
10093: %returnhash=&userenvironment($udom,$uname,
10094: $qualifierrest);
10095: }
1.218 albertel 10096: return $returnhash{$qualifierrest};
10097: }
1.48 www 10098: # ----------------------------------------------------------------- user.course
10099: } elsif ($space eq 'course') {
1.218 albertel 10100: # FIXME - not supporting calls for a specific user
1.620 albertel 10101: return $env{join('.',('request.course',$qualifier))};
1.48 www 10102: # ------------------------------------------------------------------- user.role
10103: } elsif ($space eq 'role') {
1.218 albertel 10104: # FIXME - not supporting calls for a specific user
1.620 albertel 10105: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 10106: if ($qualifier eq 'value') {
10107: return $role;
10108: } elsif ($qualifier eq 'extent') {
10109: return $where;
10110: }
10111: # ----------------------------------------------------------------- user.domain
10112: } elsif ($space eq 'domain') {
1.218 albertel 10113: return $udom;
1.48 www 10114: # ------------------------------------------------------------------- user.name
10115: } elsif ($space eq 'name') {
1.218 albertel 10116: return $uname;
1.48 www 10117: # ---------------------------------------------------- Any other user namespace
1.29 www 10118: } else {
1.359 albertel 10119: my %reply;
10120: if (!$publicuser) {
10121: %reply=&get($space,[$qualifierrest],$udom,$uname);
10122: }
10123: return $reply{$qualifierrest};
1.48 www 10124: }
1.236 www 10125: } elsif ($realm eq 'query') {
10126: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 10127: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
10128: [$spacequalifierrest]);
1.620 albertel 10129: return $env{'form.'.$spacequalifierrest};
1.236 www 10130: } elsif ($realm eq 'request') {
1.48 www 10131: # ------------------------------------------------------------- request.browser
10132: if ($space eq 'browser') {
1.1145 bisitz 10133: return $env{'browser.'.$qualifier};
1.57 www 10134: # ------------------------------------------------------------ request.filename
10135: } else {
1.620 albertel 10136: return $env{'request.'.$spacequalifierrest};
1.29 www 10137: }
1.28 www 10138: } elsif ($realm eq 'course') {
1.48 www 10139: # ---------------------------------------------------------- course.description
1.620 albertel 10140: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 10141: } elsif ($realm eq 'resource') {
1.165 www 10142:
1.620 albertel 10143: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 10144: if (!$symbparm) { $symbparm=&symbread(); }
10145: }
1.693 albertel 10146:
1.1232 raeburn 10147: if ($qualifier eq '') {
10148: if ($space eq 'title') {
10149: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
10150: return &gettitle($symbparm);
10151: }
1.693 albertel 10152:
1.1232 raeburn 10153: if ($space eq 'map') {
10154: my ($map) = &decode_symb($symbparm);
10155: return &symbread($map);
10156: }
10157: if ($space eq 'maptitle') {
10158: my ($map) = &decode_symb($symbparm);
10159: return &gettitle($map);
10160: }
10161: if ($space eq 'filename') {
10162: if ($symbparm) {
10163: return &clutter((&decode_symb($symbparm))[2]);
10164: }
10165: return &hreflocation('',$env{'request.filename'});
1.905 albertel 10166: }
1.1232 raeburn 10167:
1.1233 raeburn 10168: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
10169: if ($space eq 'visibleparts') {
10170: my $navmap = Apache::lonnavmaps::navmap->new();
10171: my $item;
10172: if (ref($navmap)) {
10173: my $res = $navmap->getBySymb($symbparm);
10174: my $parts = $res->parts();
10175: if (ref($parts) eq 'ARRAY') {
10176: $item = join(',',@{$parts});
10177: }
10178: undef($navmap);
1.1232 raeburn 10179: }
1.1233 raeburn 10180: return $item;
1.1232 raeburn 10181: }
10182: }
10183: }
1.693 albertel 10184:
10185: my ($section, $group, @groups);
1.593 albertel 10186: my ($courselevelm,$courselevel);
1.1228 raeburn 10187: if (($courseid eq '') && ($cid)) {
10188: $courseid = $cid;
10189: }
10190: if (($symbparm && $courseid) &&
10191: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
1.165 www 10192:
1.218 albertel 10193: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 10194:
1.60 www 10195: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 10196: my $symbp=$symbparm;
1.735 albertel 10197: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 10198:
10199: my $symbparm=$symbp.'.'.$spacequalifierrest;
10200: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
10201:
1.620 albertel 10202: if (($env{'user.name'} eq $uname) &&
10203: ($env{'user.domain'} eq $udom)) {
10204: $section=$env{'request.course.sec'};
1.733 raeburn 10205: @groups = split(/:/,$env{'request.course.groups'});
10206: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 10207: } else {
1.539 albertel 10208: if (! defined($usection)) {
1.551 albertel 10209: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 10210: } else {
10211: $section = $usection;
10212: }
1.733 raeburn 10213: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 10214: }
10215:
10216: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
10217: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
10218: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
10219:
1.593 albertel 10220: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 10221: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 10222: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 10223:
1.60 www 10224: # ----------------------------------------------------------- first, check user
1.624 albertel 10225:
10226: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 10227: ([$courselevelr,'resource'],
10228: [$courselevelm,'map' ],
10229: [$courselevel, 'course' ]));
1.931 albertel 10230: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 10231:
1.594 albertel 10232: # ------------------------------------------------ second, check some of course
1.684 raeburn 10233: my $coursereply;
1.691 raeburn 10234: if (@groups > 0) {
10235: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
10236: $mapparm,$spacequalifierrest);
1.927 albertel 10237: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 10238: }
1.96 www 10239:
1.684 raeburn 10240: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 10241: $env{'course.'.$courseid.'.domain'},
10242: 'course',
10243: ([$seclevelr, 'resource'],
10244: [$seclevelm, 'map' ],
10245: [$seclevel, 'course' ],
10246: [$courselevelr,'resource']));
10247: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 10248:
1.60 www 10249: # ------------------------------------------------------ third, check map parms
1.218 albertel 10250: my %parmhash=();
10251: my $thisparm='';
10252: if (tie(%parmhash,'GDBM_File',
1.620 albertel 10253: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 10254: &GDBM_READER(),0640)) {
1.218 albertel 10255: $thisparm=$parmhash{$symbparm};
10256: untie(%parmhash);
10257: }
1.927 albertel 10258: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 10259: }
1.594 albertel 10260: # ------------------------------------------ fourth, look in resource metadata
1.71 www 10261:
1.218 albertel 10262: $spacequalifierrest=~s/\./\_/;
1.282 albertel 10263: my $filename;
10264: if (!$symbparm) { $symbparm=&symbread(); }
10265: if ($symbparm) {
1.409 www 10266: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 10267: } else {
1.620 albertel 10268: $filename=$env{'request.filename'};
1.282 albertel 10269: }
10270: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 10271: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 10272: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 10273: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 10274:
1.927 albertel 10275: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 10276: if ($symbparm && defined($courseid) &&
1.620 albertel 10277: $courseid eq $env{'request.course.id'}) {
1.624 albertel 10278: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
10279: $env{'course.'.$courseid.'.domain'},
10280: 'course',
1.927 albertel 10281: ([$courselevelm,'map' ],
10282: [$courselevel, 'course']));
10283: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 10284: }
1.145 www 10285: # ------------------------------------------------------------------ Cascade up
1.218 albertel 10286: unless ($space eq '0') {
1.336 albertel 10287: my @parts=split(/_/,$space);
10288: my $id=pop(@parts);
10289: my $part=join('_',@parts);
10290: if ($part eq '') { $part='0'; }
1.927 albertel 10291: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 10292: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 10293: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 10294: }
1.395 albertel 10295: if ($recurse) { return undef; }
10296: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 10297: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 10298: # ---------------------------------------------------- Any other user namespace
10299: } elsif ($realm eq 'environment') {
10300: # ----------------------------------------------------------------- environment
1.620 albertel 10301: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
10302: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 10303: } else {
1.770 albertel 10304: if ($uname eq 'anonymous' && $udom eq '') {
10305: return '';
10306: }
1.219 albertel 10307: my %returnhash=&userenvironment($udom,$uname,
10308: $spacequalifierrest);
10309: return $returnhash{$spacequalifierrest};
10310: }
1.28 www 10311: } elsif ($realm eq 'system') {
1.48 www 10312: # ----------------------------------------------------------------- system.time
10313: if ($space eq 'time') {
10314: return time;
10315: }
1.696 albertel 10316: } elsif ($realm eq 'server') {
10317: # ----------------------------------------------------------------- system.time
10318: if ($space eq 'name') {
10319: return $ENV{'SERVER_NAME'};
10320: }
1.28 www 10321: }
1.48 www 10322: return '';
1.61 www 10323: }
10324:
1.927 albertel 10325: sub get_reply {
10326: my ($reply_value) = @_;
1.940 raeburn 10327: if (ref($reply_value) eq 'ARRAY') {
10328: if (wantarray) {
10329: return @$reply_value;
10330: }
10331: return $reply_value->[0];
10332: } else {
10333: return $reply_value;
1.927 albertel 10334: }
10335: }
10336:
1.691 raeburn 10337: sub check_group_parms {
10338: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
10339: my @groupitems = ();
10340: my $resultitem;
1.927 albertel 10341: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 10342: foreach my $group (@{$groups}) {
10343: foreach my $level (@levels) {
1.927 albertel 10344: my $item = $courseid.'.['.$group.'].'.$level->[0];
10345: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 10346: }
10347: }
10348: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
10349: $env{'course.'.$courseid.'.domain'},
10350: 'course',@groupitems);
10351: return $coursereply;
10352: }
10353:
10354: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 10355: my ($courseid,@groups) = @_;
10356: @groups = sort(@groups);
1.691 raeburn 10357: return @groups;
10358: }
10359:
1.395 albertel 10360: sub packages_tab_default {
10361: my ($uri,$varname)=@_;
10362: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 10363:
10364: my (@extension,@specifics,$do_default);
10365: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 10366: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 10367: if ($pack_type eq 'default') {
10368: $do_default=1;
10369: } elsif ($pack_type eq 'extension') {
10370: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 10371: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 10372: # only look at packages defaults for packages that this id is
1.738 albertel 10373: push(@specifics,[$package,$pack_type,$pack_part]);
10374: }
10375: }
10376: # first look for a package that matches the requested part id
10377: foreach my $package (@specifics) {
10378: my (undef,$pack_type,$pack_part)=@{$package};
10379: next if ($pack_part ne $part);
10380: if (defined($packagetab{"$pack_type&$name&default"})) {
10381: return $packagetab{"$pack_type&$name&default"};
10382: }
10383: }
10384: # look for any possible matching non extension_ package
10385: foreach my $package (@specifics) {
10386: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 10387: if (defined($packagetab{"$pack_type&$name&default"})) {
10388: return $packagetab{"$pack_type&$name&default"};
10389: }
1.585 albertel 10390: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 10391: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
10392: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 10393: }
10394: }
1.738 albertel 10395: # look for any posible extension_ match
10396: foreach my $package (@extension) {
10397: my ($package,$pack_type)=@{$package};
10398: if (defined($packagetab{"$pack_type&$name&default"})) {
10399: return $packagetab{"$pack_type&$name&default"};
10400: }
10401: if (defined($packagetab{$package."&$name&default"})) {
10402: return $packagetab{$package."&$name&default"};
10403: }
10404: }
10405: # look for a global default setting
10406: if ($do_default && defined($packagetab{"default&$name&default"})) {
10407: return $packagetab{"default&$name&default"};
10408: }
1.395 albertel 10409: return undef;
10410: }
10411:
1.334 albertel 10412: sub add_prefix_and_part {
10413: my ($prefix,$part)=@_;
10414: my $keyroot;
10415: if (defined($prefix) && $prefix !~ /^__/) {
10416: # prefix that has a part already
10417: $keyroot=$prefix;
10418: } elsif (defined($prefix)) {
10419: # prefix that is missing a part
10420: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
10421: } else {
10422: # no prefix at all
10423: if (defined($part)) { $keyroot='_'.$part; }
10424: }
10425: return $keyroot;
10426: }
10427:
1.71 www 10428: # ---------------------------------------------------------------- Get metadata
10429:
1.599 albertel 10430: my %metaentry;
1.1070 www 10431: my %importedpartids;
1.71 www 10432: sub metadata {
1.176 www 10433: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 10434: $uri=&declutter($uri);
1.288 albertel 10435: # if it is a non metadata possible uri return quickly
1.529 albertel 10436: if (($uri eq '') ||
10437: (($uri =~ m|^/*adm/|) &&
1.1217 raeburn 10438: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard)$})) ||
1.1108 raeburn 10439: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 10440: return undef;
10441: }
1.1261 raeburn 10442: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
1.924 albertel 10443: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 10444: return undef;
1.288 albertel 10445: }
1.73 www 10446: my $filename=$uri;
10447: $uri=~s/\.meta$//;
1.172 www 10448: #
10449: # Is the metadata already cached?
1.177 www 10450: # Look at timestamp of caching
1.172 www 10451: # Everything is cached by the main uri, libraries are never directly cached
10452: #
1.428 albertel 10453: if (!defined($liburi)) {
1.599 albertel 10454: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 10455: if (defined($cached)) { return $result->{':'.$what}; }
10456: }
10457: {
1.1069 www 10458: # Imported parts would go here
1.1070 www 10459: my %importedids=();
10460: my @origfileimportpartids=();
1.1069 www 10461: my $importedparts=0;
1.172 www 10462: #
10463: # Is this a recursive call for a library?
10464: #
1.599 albertel 10465: # if (! exists($metacache{$uri})) {
10466: # $metacache{$uri}={};
10467: # }
1.924 albertel 10468: my $cachetime = 60*60;
1.171 www 10469: if ($liburi) {
10470: $liburi=&declutter($liburi);
10471: $filename=$liburi;
1.401 bowersj2 10472: } else {
1.599 albertel 10473: &devalidate_cache_new('meta',$uri);
10474: undef(%metaentry);
1.401 bowersj2 10475: }
1.140 www 10476: my %metathesekeys=();
1.73 www 10477: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 10478: my $metastring;
1.1140 www 10479: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 10480: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 10481: $metastring =
1.929 albertel 10482: &Apache::lonnet::ssi_body($which,
1.924 albertel 10483: ('grade_target' => 'meta'));
10484: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 10485: } elsif (($uri !~ m -^(editupload)/-) &&
10486: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 10487: my $file=&filelocation('',&clutter($filename));
1.599 albertel 10488: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 10489: $metastring=&getfile($file);
1.489 albertel 10490: }
1.208 albertel 10491: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 10492: my $token;
1.140 www 10493: undef %metathesekeys;
1.71 www 10494: while ($token=$parser->get_token) {
1.339 albertel 10495: if ($token->[0] eq 'S') {
10496: if (defined($token->[2]->{'package'})) {
1.172 www 10497: #
10498: # This is a package - get package info
10499: #
1.339 albertel 10500: my $package=$token->[2]->{'package'};
10501: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10502: if (defined($token->[2]->{'id'})) {
10503: $keyroot.='_'.$token->[2]->{'id'};
10504: }
1.599 albertel 10505: if ($metaentry{':packages'}) {
10506: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 10507: } else {
1.599 albertel 10508: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 10509: }
1.736 albertel 10510: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 10511: my $part=$keyroot;
10512: $part=~s/^\_//;
1.736 albertel 10513: if ($pack_entry=~/^\Q$package\E\&/ ||
10514: $pack_entry=~/^\Q$package\E_0\&/) {
10515: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 10516: # ignore package.tab specified default values
10517: # here &package_tab_default() will fetch those
10518: if ($subp eq 'default') { next; }
1.736 albertel 10519: my $value=$packagetab{$pack_entry};
1.432 albertel 10520: my $unikey;
10521: if ($pack =~ /_0$/) {
10522: $unikey='parameter_0_'.$name;
10523: $part=0;
10524: } else {
10525: $unikey='parameter'.$keyroot.'_'.$name;
10526: }
1.339 albertel 10527: if ($subp eq 'display') {
10528: $value.=' [Part: '.$part.']';
10529: }
1.599 albertel 10530: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 10531: $metathesekeys{$unikey}=1;
1.599 albertel 10532: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10533: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 10534: }
1.599 albertel 10535: if (defined($metaentry{':'.$unikey.'.default'})) {
10536: $metaentry{':'.$unikey}=
10537: $metaentry{':'.$unikey.'.default'};
1.356 albertel 10538: }
1.339 albertel 10539: }
10540: }
10541: } else {
1.172 www 10542: #
10543: # This is not a package - some other kind of start tag
1.339 albertel 10544: #
10545: my $entry=$token->[1];
1.1068 www 10546: my $unikey='';
1.175 www 10547:
1.339 albertel 10548: if ($entry eq 'import') {
1.175 www 10549: #
10550: # Importing a library here
1.339 albertel 10551: #
1.1067 www 10552: my $location=$parser->get_text('/import');
10553: my $dir=$filename;
10554: $dir=~s|[^/]*$||;
10555: $location=&filelocation($dir,$location);
1.1069 www 10556:
1.1068 www 10557: my $importmode=$token->[2]->{'importmode'};
10558: if ($importmode eq 'problem') {
1.1069 www 10559: # Import as problem/response
1.1068 www 10560: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10561: } elsif ($importmode eq 'part') {
10562: # Import as part(s)
1.1069 www 10563: $importedparts=1;
10564: # We need to get the original file and the imported file to get the part order correct
10565: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
10566: # Load and inspect original file
1.1070 www 10567: if ($#origfileimportpartids<0) {
10568: undef(%importedpartids);
10569: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
10570: my $origfile=&getfile($origfilelocation);
10571: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10572: }
10573:
1.1069 www 10574: # Load and inspect imported file
10575: my $impfile=&getfile($location);
10576: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10577: if ($#impfilepartids>=0) {
10578: # This problem had parts
1.1070 www 10579: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 10580: } else {
10581: # Importing by turning a single problem into a problem part
10582: # It gets the import-tags ID as part-ID
10583: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 10584: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 10585: }
1.1068 www 10586: } else {
10587: # Normal import
10588: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10589: if (defined($token->[2]->{'id'})) {
10590: $unikey.='_'.$token->[2]->{'id'};
10591: }
1.1067 www 10592: }
10593:
1.339 albertel 10594: if ($depthcount<20) {
1.736 albertel 10595: my $metadata =
10596: &metadata($uri,'keys', $location,$unikey,
10597: $depthcount+1);
10598: foreach my $meta (split(',',$metadata)) {
10599: $metaentry{':'.$meta}=$metaentry{':'.$meta};
10600: $metathesekeys{$meta}=1;
1.339 albertel 10601: }
1.1068 www 10602:
10603: }
1.1067 www 10604: } else {
10605: #
10606: # Not importing, some other kind of non-package, non-library start tag
10607: #
10608: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
10609: if (defined($token->[2]->{'id'})) {
10610: $unikey.='_'.$token->[2]->{'id'};
10611: }
1.339 albertel 10612: if (defined($token->[2]->{'name'})) {
10613: $unikey.='_'.$token->[2]->{'name'};
10614: }
10615: $metathesekeys{$unikey}=1;
1.736 albertel 10616: foreach my $param (@{$token->[3]}) {
10617: $metaentry{':'.$unikey.'.'.$param} =
10618: $token->[2]->{$param};
1.339 albertel 10619: }
10620: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 10621: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 10622: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
10623: # only ws inside the tag, and not in default, so use default
10624: # as value
1.599 albertel 10625: $metaentry{':'.$unikey}=$default;
1.908 albertel 10626: } elsif ( $internaltext =~ /\S/ ) {
10627: # something interesting inside the tag
10628: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 10629: } else {
1.908 albertel 10630: # no interesting values, don't set a default
1.339 albertel 10631: }
1.172 www 10632: # end of not-a-package not-a-library import
1.339 albertel 10633: }
1.172 www 10634: # end of not-a-package start tag
1.339 albertel 10635: }
1.172 www 10636: # the next is the end of "start tag"
1.339 albertel 10637: }
10638: }
1.483 albertel 10639: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 10640: $extension = lc($extension);
10641: if ($extension eq 'htm') { $extension='html'; }
10642:
1.737 albertel 10643: foreach my $key (keys(%packagetab)) {
1.483 albertel 10644: #no specific packages #how's our extension
10645: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 10646: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 10647: \%metathesekeys);
10648: }
1.883 albertel 10649:
10650: if (!exists($metaentry{':packages'})
10651: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 10652: foreach my $key (keys(%packagetab)) {
1.483 albertel 10653: #no specific packages well let's get default then
10654: if ($key!~/^default&/) { next; }
1.488 albertel 10655: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 10656: \%metathesekeys);
10657: }
10658: }
1.338 www 10659: # are there custom rights to evaluate
1.599 albertel 10660: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 10661:
1.338 www 10662: #
10663: # Importing a rights file here
1.339 albertel 10664: #
10665: unless ($depthcount) {
1.599 albertel 10666: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 10667: my $dir=$filename;
10668: $dir=~s|[^/]*$||;
10669: $location=&filelocation($dir,$location);
1.736 albertel 10670: my $rights_metadata =
10671: &metadata($uri,'keys',$location,'_rights',
10672: $depthcount+1);
10673: foreach my $rights (split(',',$rights_metadata)) {
10674: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
10675: $metathesekeys{$rights}=1;
1.339 albertel 10676: }
10677: }
10678: }
1.737 albertel 10679: # uniqifiy package listing
10680: my %seen;
10681: my @uniq_packages =
10682: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
10683: $metaentry{':packages'} = join(',',@uniq_packages);
10684:
1.1070 www 10685: if ($importedparts) {
10686: # We had imported parts and need to rebuild partorder
10687: $metaentry{':partorder'}='';
10688: $metathesekeys{'partorder'}=1;
10689: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
10690: if ($origfileimportpartids[$index] eq 'part') {
10691: # original part, part of the problem
10692: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
10693: } else {
10694: # we have imported parts at this position
10695: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
10696: }
10697: }
10698: $metaentry{':partorder'}=~s/^\,//;
10699: }
10700:
1.737 albertel 10701: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 10702: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
1.1274 raeburn 10703: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
1.924 albertel 10704: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 10705: # this is the end of "was not already recently cached
1.71 www 10706: }
1.599 albertel 10707: return $metaentry{':'.$what};
1.261 albertel 10708: }
10709:
1.488 albertel 10710: sub metadata_create_package_def {
1.483 albertel 10711: my ($uri,$key,$package,$metathesekeys)=@_;
10712: my ($pack,$name,$subp)=split(/\&/,$key);
10713: if ($subp eq 'default') { next; }
10714:
1.599 albertel 10715: if (defined($metaentry{':packages'})) {
10716: $metaentry{':packages'}.=','.$package;
1.483 albertel 10717: } else {
1.599 albertel 10718: $metaentry{':packages'}=$package;
1.483 albertel 10719: }
10720: my $value=$packagetab{$key};
10721: my $unikey;
10722: $unikey='parameter_0_'.$name;
1.599 albertel 10723: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 10724: $$metathesekeys{$unikey}=1;
1.599 albertel 10725: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10726: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 10727: }
1.599 albertel 10728: if (defined($metaentry{':'.$unikey.'.default'})) {
10729: $metaentry{':'.$unikey}=
10730: $metaentry{':'.$unikey.'.default'};
1.483 albertel 10731: }
10732: }
10733:
1.261 albertel 10734: sub metadata_generate_part0 {
10735: my ($metadata,$metacache,$uri) = @_;
10736: my %allnames;
1.737 albertel 10737: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 10738: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 10739: my $part=$$metacache{':'.$metakey.'.part'};
10740: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 10741: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 10742: $allnames{$name}=$part;
10743: }
10744: }
10745: }
10746: foreach my $name (keys(%allnames)) {
10747: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 10748: my $key=":parameter_0_$name";
1.261 albertel 10749: $$metacache{"$key.part"}='0';
10750: $$metacache{"$key.name"}=$name;
1.428 albertel 10751: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 10752: $allnames{$name}.'_'.$name.
10753: '.type'};
1.428 albertel 10754: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 10755: '.display'};
1.644 www 10756: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 10757: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 10758: $$metacache{"$key.display"}=$olddis;
10759: }
1.71 www 10760: }
10761:
1.764 albertel 10762: # ------------------------------------------------------ Devalidate title cache
10763:
10764: sub devalidate_title_cache {
10765: my ($url)=@_;
10766: if (!$env{'request.course.id'}) { return; }
10767: my $symb=&symbread($url);
10768: if (!$symb) { return; }
10769: my $key=$env{'request.course.id'}."\0".$symb;
10770: &devalidate_cache_new('title',$key);
10771: }
10772:
1.1014 droeschl 10773: # ------------------------------------------------- Get the title of a course
10774:
10775: sub current_course_title {
10776: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
10777: }
1.301 www 10778: # ------------------------------------------------- Get the title of a resource
10779:
10780: sub gettitle {
10781: my $urlsymb=shift;
10782: my $symb=&symbread($urlsymb);
1.534 albertel 10783: if ($symb) {
1.620 albertel 10784: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 10785: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 10786: if (defined($cached)) {
10787: return $result;
10788: }
1.534 albertel 10789: my ($map,$resid,$url)=&decode_symb($symb);
10790: my $title='';
1.907 albertel 10791: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
10792: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
10793: } else {
10794: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10795: &GDBM_READER(),0640)) {
10796: my $mapid=$bighash{'map_pc_'.&clutter($map)};
10797: $title=$bighash{'title_'.$mapid.'.'.$resid};
10798: untie(%bighash);
10799: }
1.534 albertel 10800: }
10801: $title=~s/\&colon\;/\:/gs;
10802: if ($title) {
1.1159 www 10803: # Remember both $symb and $title for dynamic metadata
10804: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 10805: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 10806: # Cache this title and then return it
1.599 albertel 10807: return &do_cache_new('title',$key,$title,600);
1.534 albertel 10808: }
10809: $urlsymb=$url;
10810: }
10811: my $title=&metadata($urlsymb,'title');
10812: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
10813: return $title;
1.301 www 10814: }
1.613 albertel 10815:
1.614 albertel 10816: sub get_slot {
10817: my ($which,$cnum,$cdom)=@_;
10818: if (!$cnum || !$cdom) {
1.790 albertel 10819: (undef,my $courseid)=&whichuser();
1.620 albertel 10820: $cdom=$env{'course.'.$courseid.'.domain'};
10821: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 10822: }
1.703 albertel 10823: my $key=join("\0",'slots',$cdom,$cnum,$which);
10824: my %slotinfo;
10825: if (exists($remembered{$key})) {
10826: $slotinfo{$which} = $remembered{$key};
10827: } else {
10828: %slotinfo=&get('slots',[$which],$cdom,$cnum);
10829: &Apache::lonhomework::showhash(%slotinfo);
10830: my ($tmp)=keys(%slotinfo);
10831: if ($tmp=~/^error:/) { return (); }
10832: $remembered{$key} = $slotinfo{$which};
10833: }
1.616 albertel 10834: if (ref($slotinfo{$which}) eq 'HASH') {
10835: return %{$slotinfo{$which}};
10836: }
10837: return $slotinfo{$which};
1.614 albertel 10838: }
1.1150 raeburn 10839:
10840: sub get_reservable_slots {
10841: my ($cnum,$cdom,$uname,$udom) = @_;
10842: my $now = time;
10843: my $reservable_info;
10844: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
10845: if (exists($remembered{$key})) {
10846: $reservable_info = $remembered{$key};
10847: } else {
10848: my %resv;
10849: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
10850: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
10851: $reservable_info = \%resv;
10852: $remembered{$key} = $reservable_info;
10853: }
10854: return $reservable_info;
10855: }
10856:
10857: sub get_course_slots {
10858: my ($cnum,$cdom) = @_;
10859: my $hashid=$cnum.':'.$cdom;
10860: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
10861: if (defined($cached)) {
10862: if (ref($result) eq 'HASH') {
10863: return %{$result};
10864: }
10865: } else {
10866: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
10867: my ($tmp) = keys(%slots);
10868: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.1219 raeburn 10869: &do_cache_new('allslots',$hashid,\%slots,600);
1.1150 raeburn 10870: return %slots;
10871: }
10872: }
10873: return;
10874: }
10875:
10876: sub devalidate_slots_cache {
10877: my ($cnum,$cdom)=@_;
10878: my $hashid=$cnum.':'.$cdom;
10879: &devalidate_cache_new('allslots',$hashid);
10880: }
10881:
1.1181 raeburn 10882: sub get_coursechange {
10883: my ($cdom,$cnum) = @_;
10884: if ($cdom eq '' || $cnum eq '') {
10885: return unless ($env{'request.course.id'});
10886: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
10887: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
10888: }
10889: my $hashid=$cdom.'_'.$cnum;
10890: my ($change,$cached)=&is_cached_new('crschange',$hashid);
10891: if ((defined($cached)) && ($change ne '')) {
10892: return $change;
10893: } else {
10894: my %crshash;
10895: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
10896: if ($crshash{'internal.contentchange'} eq '') {
10897: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
10898: if ($change eq '') {
10899: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
10900: $change = $crshash{'internal.created'};
10901: }
10902: } else {
10903: $change = $crshash{'internal.contentchange'};
10904: }
10905: my $cachetime = 600;
10906: &do_cache_new('crschange',$hashid,$change,$cachetime);
10907: }
10908: return $change;
10909: }
10910:
10911: sub devalidate_coursechange_cache {
10912: my ($cnum,$cdom)=@_;
10913: my $hashid=$cnum.':'.$cdom;
10914: &devalidate_cache_new('crschange',$hashid);
10915: }
10916:
1.31 www 10917: # ------------------------------------------------- Update symbolic store links
10918:
10919: sub symblist {
10920: my ($mapname,%newhash)=@_;
1.438 www 10921: $mapname=&deversion(&declutter($mapname));
1.31 www 10922: my %hash;
1.620 albertel 10923: if (($env{'request.course.fn'}) && (%newhash)) {
10924: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10925: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 10926: foreach my $url (keys(%newhash)) {
1.711 albertel 10927: next if ($url eq 'last_known'
10928: && $env{'form.no_update_last_known'});
10929: $hash{declutter($url)}=&encode_symb($mapname,
10930: $newhash{$url}->[1],
10931: $newhash{$url}->[0]);
1.191 harris41 10932: }
1.31 www 10933: if (untie(%hash)) {
10934: return 'ok';
10935: }
10936: }
10937: }
10938: return 'error';
1.212 www 10939: }
10940:
10941: # --------------------------------------------------------------- Verify a symb
10942:
10943: sub symbverify {
1.1190 raeburn 10944: my ($symb,$thisurl,$encstate)=@_;
1.510 www 10945: my $thisfn=$thisurl;
1.439 www 10946: $thisfn=&declutter($thisfn);
1.215 www 10947: # direct jump to resource in page or to a sequence - will construct own symbs
10948: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
10949: # check URL part
1.409 www 10950: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 10951:
1.431 www 10952: unless ($url eq $thisfn) { return 0; }
1.213 www 10953:
1.216 www 10954: $symb=&symbclean($symb);
1.510 www 10955: $thisurl=&deversion($thisurl);
1.439 www 10956: $thisfn=&deversion($thisfn);
1.213 www 10957:
10958: my %bighash;
10959: my $okay=0;
1.431 www 10960:
1.620 albertel 10961: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10962: &GDBM_READER(),0640)) {
1.1204 raeburn 10963: my $noclutter;
1.1032 raeburn 10964: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
10965: $thisurl =~ s/\?.+$//;
1.1204 raeburn 10966: if ($map =~ m{^uploaded/.+\.page$}) {
10967: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
10968: $thisurl =~ s{^\Qhttp://https://\E}{https://};
10969: $noclutter = 1;
10970: }
10971: }
10972: my $ids;
10973: if ($noclutter) {
10974: $ids=$bighash{'ids_'.$thisurl};
10975: } else {
10976: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 10977: }
1.1102 raeburn 10978: unless ($ids) {
10979: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
10980: $ids=$bighash{$idkey};
1.216 www 10981: }
10982: if ($ids) {
10983: # ------------------------------------------------------------------- Has ID(s)
1.1202 raeburn 10984: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
1.1203 raeburn 10985: $symb =~ s/\?.+$//;
1.1202 raeburn 10986: }
1.800 albertel 10987: foreach my $id (split(/\,/,$ids)) {
10988: my ($mapid,$resid)=split(/\./,$id);
1.216 www 10989: if (
10990: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1190 raeburn 10991: eq $symb) {
10992: if (ref($encstate)) {
10993: $$encstate = $bighash{'encrypted_'.$id};
10994: }
1.620 albertel 10995: if (($env{'request.role.adv'}) ||
1.1101 raeburn 10996: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
10997: ($thisurl eq '/adm/navmaps')) {
1.1190 raeburn 10998: $okay=1;
1.1202 raeburn 10999: last;
1.582 albertel 11000: }
11001: }
1.216 www 11002: }
11003: }
1.213 www 11004: untie(%bighash);
11005: }
11006: return $okay;
1.31 www 11007: }
11008:
1.210 www 11009: # --------------------------------------------------------------- Clean-up symb
11010:
11011: sub symbclean {
11012: my $symb=shift;
1.568 albertel 11013: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 11014: # remove version from map
11015: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 11016:
1.210 www 11017: # remove version from URL
11018: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 11019:
1.507 www 11020: # remove wrapper
11021:
1.510 www 11022: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 11023: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 11024: return $symb;
1.409 www 11025: }
11026:
11027: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 11028:
11029: sub encode_symb {
11030: my ($map,$resid,$url)=@_;
11031: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
11032: }
1.409 www 11033:
11034: sub decode_symb {
1.568 albertel 11035: my $symb=shift;
11036: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
11037: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 11038: return (&fixversion($map),$resid,&fixversion($url));
11039: }
11040:
11041: sub fixversion {
11042: my $fn=shift;
1.609 banghart 11043: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 11044: my %bighash;
11045: my $uri=&clutter($fn);
1.620 albertel 11046: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 11047: # is this cached?
1.599 albertel 11048: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 11049: if (defined($cached)) { return $result; }
11050: # unfortunately not cached, or expired
1.620 albertel 11051: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 11052: &GDBM_READER(),0640)) {
11053: if ($bighash{'version_'.$uri}) {
11054: my $version=$bighash{'version_'.$uri};
1.444 www 11055: unless (($version eq 'mostrecent') ||
11056: ($version==&getversion($uri))) {
1.440 www 11057: $uri=~s/\.(\w+)$/\.$version\.$1/;
11058: }
11059: }
11060: untie %bighash;
1.413 www 11061: }
1.599 albertel 11062: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 11063: }
11064:
11065: sub deversion {
11066: my $url=shift;
11067: $url=~s/\.\d+\.(\w+)$/\.$1/;
11068: return $url;
1.210 www 11069: }
11070:
1.31 www 11071: # ------------------------------------------------------ Return symb list entry
11072:
11073: sub symbread {
1.249 www 11074: my ($thisfn,$donotrecurse)=@_;
1.1265 raeburn 11075: my $cache_str='request.symbread.cached.'.$thisfn;
11076: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 11077: # no filename provided? try from environment
1.1265 raeburn 11078: unless ($thisfn) {
1.620 albertel 11079: if ($env{'request.symb'}) {
11080: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 11081: }
1.620 albertel 11082: $thisfn=$env{'request.filename'};
1.44 www 11083: }
1.569 albertel 11084: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 11085: # is that filename actually a symb? Verify, clean, and return
11086: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 11087: if (&symbverify($thisfn,$1)) {
1.620 albertel 11088: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 11089: }
1.242 www 11090: }
1.44 www 11091: $thisfn=declutter($thisfn);
1.31 www 11092: my %hash;
1.37 www 11093: my %bighash;
11094: my $syval='';
1.620 albertel 11095: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 11096: my $targetfn = $thisfn;
1.609 banghart 11097: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 11098: $targetfn = 'adm/wrapper/'.$thisfn;
11099: }
1.687 albertel 11100: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
11101: $targetfn=$1;
11102: }
1.620 albertel 11103: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 11104: &GDBM_READER(),0640)) {
1.481 raeburn 11105: $syval=$hash{$targetfn};
1.37 www 11106: untie(%hash);
11107: }
11108: # ---------------------------------------------------------- There was an entry
11109: if ($syval) {
1.601 albertel 11110: #unless ($syval=~/\_\d+$/) {
1.620 albertel 11111: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 11112: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 11113: #return $env{$cache_str}='';
1.601 albertel 11114: #}
11115: #$syval.=$1;
11116: #}
1.37 www 11117: } else {
11118: # ------------------------------------------------------- Was not in symb table
1.620 albertel 11119: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 11120: &GDBM_READER(),0640)) {
1.37 www 11121: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 11122: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 11123: unless ($ids) {
11124: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 11125: }
11126: unless ($ids) {
11127: # alias?
11128: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 11129: }
1.37 www 11130: if ($ids) {
11131: # ------------------------------------------------------------------- Has ID(s)
11132: my @possibilities=split(/\,/,$ids);
1.39 www 11133: if ($#possibilities==0) {
11134: # ----------------------------------------------- There is only one possibility
1.37 www 11135: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 11136: $syval=&encode_symb($bighash{'map_id_'.$mapid},
11137: $resid,$thisfn);
1.249 www 11138: } elsif (!$donotrecurse) {
1.39 www 11139: # ------------------------------------------ There is more than one possibility
11140: my $realpossible=0;
1.800 albertel 11141: foreach my $id (@possibilities) {
11142: my $file=$bighash{'src_'.$id};
1.39 www 11143: if (&allowed('bre',$file)) {
1.800 albertel 11144: my ($mapid,$resid)=split(/\./,$id);
1.39 www 11145: if ($bighash{'map_type_'.$mapid} ne 'page') {
11146: $realpossible++;
1.626 albertel 11147: $syval=&encode_symb($bighash{'map_id_'.$mapid},
11148: $resid,$thisfn);
1.39 www 11149: }
11150: }
1.191 harris41 11151: }
1.39 www 11152: if ($realpossible!=1) { $syval=''; }
1.249 www 11153: } else {
11154: $syval='';
1.37 www 11155: }
11156: }
11157: untie(%bighash)
1.481 raeburn 11158: }
1.31 www 11159: }
1.62 www 11160: if ($syval) {
1.620 albertel 11161: return $env{$cache_str}=$syval;
1.62 www 11162: }
1.31 www 11163: }
1.949 raeburn 11164: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 11165: return $env{$cache_str}='';
1.31 www 11166: }
11167:
11168: # ---------------------------------------------------------- Return random seed
11169:
1.32 www 11170: sub numval {
11171: my $txt=shift;
11172: $txt=~tr/A-J/0-9/;
11173: $txt=~tr/a-j/0-9/;
11174: $txt=~tr/K-T/0-9/;
11175: $txt=~tr/k-t/0-9/;
11176: $txt=~tr/U-Z/0-5/;
11177: $txt=~tr/u-z/0-5/;
11178: $txt=~s/\D//g;
1.564 albertel 11179: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 11180: return int($txt);
1.368 albertel 11181: }
11182:
1.484 albertel 11183: sub numval2 {
11184: my $txt=shift;
11185: $txt=~tr/A-J/0-9/;
11186: $txt=~tr/a-j/0-9/;
11187: $txt=~tr/K-T/0-9/;
11188: $txt=~tr/k-t/0-9/;
11189: $txt=~tr/U-Z/0-5/;
11190: $txt=~tr/u-z/0-5/;
11191: $txt=~s/\D//g;
11192: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
11193: my $total;
11194: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 11195: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 11196: return int($total);
11197: }
11198:
1.575 albertel 11199: sub numval3 {
11200: use integer;
11201: my $txt=shift;
11202: $txt=~tr/A-J/0-9/;
11203: $txt=~tr/a-j/0-9/;
11204: $txt=~tr/K-T/0-9/;
11205: $txt=~tr/k-t/0-9/;
11206: $txt=~tr/U-Z/0-5/;
11207: $txt=~tr/u-z/0-5/;
11208: $txt=~s/\D//g;
11209: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
11210: my $total;
11211: foreach my $val (@txts) { $total+=$val; }
11212: if ($_64bit) { $total=(($total<<32)>>32); }
11213: return $total;
11214: }
11215:
1.675 albertel 11216: sub digest {
11217: my ($data)=@_;
11218: my $digest=&Digest::MD5::md5($data);
11219: my ($a,$b,$c,$d)=unpack("iiii",$digest);
11220: my ($e,$f);
11221: {
11222: use integer;
11223: $e=($a+$b);
11224: $f=($c+$d);
11225: if ($_64bit) {
11226: $e=(($e<<32)>>32);
11227: $f=(($f<<32)>>32);
11228: }
11229: }
11230: if (wantarray) {
11231: return ($e,$f);
11232: } else {
11233: my $g;
11234: {
11235: use integer;
11236: $g=($e+$f);
11237: if ($_64bit) {
11238: $g=(($g<<32)>>32);
11239: }
11240: }
11241: return $g;
11242: }
11243: }
11244:
1.368 albertel 11245: sub latest_rnd_algorithm_id {
1.675 albertel 11246: return '64bit5';
1.366 albertel 11247: }
1.32 www 11248:
1.503 albertel 11249: sub get_rand_alg {
11250: my ($courseid)=@_;
1.790 albertel 11251: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 11252: if ($courseid) {
1.620 albertel 11253: return $env{"course.$courseid.rndseed"};
1.503 albertel 11254: }
11255: return &latest_rnd_algorithm_id();
11256: }
11257:
1.562 albertel 11258: sub validCODE {
11259: my ($CODE)=@_;
11260: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
11261: return 0;
11262: }
11263:
1.491 albertel 11264: sub getCODE {
1.620 albertel 11265: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 11266: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
11267: defined($Apache::lonhomework::parsing_a_task) ) &&
11268: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 11269: return $Apache::lonhomework::history{'resource.CODE'};
11270: }
11271: return undef;
11272: }
1.1133 foxr 11273: #
11274: # Determines the random seed for a specific context:
11275: #
11276: # parameters:
11277: # symb - in course context the symb for the seed.
11278: # course_id - The course id of the form domain_coursenum.
11279: # domain - Domain for the user.
11280: # course - Course for the user.
11281: # cenv - environment of the course.
11282: #
11283: # NOTE:
11284: # All parameters are picked out of the environment if missing
11285: # or not defined.
11286: # If a symb cannot be determined the current time is used instead.
11287: #
11288: # For a given well defined symb, courside, domain, username,
11289: # and course environment, the seed is reproducible.
11290: #
1.31 www 11291: sub rndseed {
1.1133 foxr 11292: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 11293: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 11294: if (!defined($symb)) {
1.366 albertel 11295: unless ($symb=$wsymb) { return time; }
11296: }
1.1146 foxr 11297: if (!defined $courseid) {
11298: $courseid=$wcourseid;
11299: }
11300: if (!defined $domain) { $domain=$wdomain; }
11301: if (!defined $username) { $username=$wusername }
1.1133 foxr 11302:
11303: my $which;
11304: if (defined($cenv->{'rndseed'})) {
11305: $which = $cenv->{'rndseed'};
11306: } else {
11307: $which =&get_rand_alg($courseid);
11308: }
1.491 albertel 11309: if (defined(&getCODE())) {
1.1133 foxr 11310:
1.675 albertel 11311: if ($which eq '64bit5') {
11312: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
11313: } elsif ($which eq '64bit4') {
1.575 albertel 11314: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
11315: } else {
11316: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
11317: }
1.675 albertel 11318: } elsif ($which eq '64bit5') {
11319: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 11320: } elsif ($which eq '64bit4') {
11321: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 11322: } elsif ($which eq '64bit3') {
11323: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 11324: } elsif ($which eq '64bit2') {
11325: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 11326: } elsif ($which eq '64bit') {
11327: return &rndseed_64bit($symb,$courseid,$domain,$username);
11328: }
11329: return &rndseed_32bit($symb,$courseid,$domain,$username);
11330: }
11331:
11332: sub rndseed_32bit {
11333: my ($symb,$courseid,$domain,$username)=@_;
11334: {
11335: use integer;
11336: my $symbchck=unpack("%32C*",$symb) << 27;
11337: my $symbseed=numval($symb) << 22;
11338: my $namechck=unpack("%32C*",$username) << 17;
11339: my $nameseed=numval($username) << 12;
11340: my $domainseed=unpack("%32C*",$domain) << 7;
11341: my $courseseed=unpack("%32C*",$courseid);
11342: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 11343: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11344: #&logthis("rndseed :$num:$symb");
1.564 albertel 11345: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 11346: return $num;
11347: }
11348: }
11349:
11350: sub rndseed_64bit {
11351: my ($symb,$courseid,$domain,$username)=@_;
11352: {
11353: use integer;
11354: my $symbchck=unpack("%32S*",$symb) << 21;
11355: my $symbseed=numval($symb) << 10;
11356: my $namechck=unpack("%32S*",$username);
11357:
11358: my $nameseed=numval($username) << 21;
11359: my $domainseed=unpack("%32S*",$domain) << 10;
11360: my $courseseed=unpack("%32S*",$courseid);
11361:
11362: my $num1=$symbchck+$symbseed+$namechck;
11363: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 11364: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11365: #&logthis("rndseed :$num:$symb");
1.564 albertel 11366: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 11367: return "$num1,$num2";
1.155 albertel 11368: }
1.366 albertel 11369: }
11370:
1.443 albertel 11371: sub rndseed_64bit2 {
11372: my ($symb,$courseid,$domain,$username)=@_;
11373: {
11374: use integer;
11375: # strings need to be an even # of cahracters long, it it is odd the
11376: # last characters gets thrown away
11377: my $symbchck=unpack("%32S*",$symb.' ') << 21;
11378: my $symbseed=numval($symb) << 10;
11379: my $namechck=unpack("%32S*",$username.' ');
11380:
11381: my $nameseed=numval($username) << 21;
1.501 albertel 11382: my $domainseed=unpack("%32S*",$domain.' ') << 10;
11383: my $courseseed=unpack("%32S*",$courseid.' ');
11384:
11385: my $num1=$symbchck+$symbseed+$namechck;
11386: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 11387: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11388: #&logthis("rndseed :$num:$symb");
1.803 albertel 11389: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 11390: return "$num1,$num2";
11391: }
11392: }
11393:
11394: sub rndseed_64bit3 {
11395: my ($symb,$courseid,$domain,$username)=@_;
11396: {
11397: use integer;
11398: # strings need to be an even # of cahracters long, it it is odd the
11399: # last characters gets thrown away
11400: my $symbchck=unpack("%32S*",$symb.' ') << 21;
11401: my $symbseed=numval2($symb) << 10;
11402: my $namechck=unpack("%32S*",$username.' ');
11403:
11404: my $nameseed=numval2($username) << 21;
1.443 albertel 11405: my $domainseed=unpack("%32S*",$domain.' ') << 10;
11406: my $courseseed=unpack("%32S*",$courseid.' ');
11407:
11408: my $num1=$symbchck+$symbseed+$namechck;
11409: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 11410: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11411: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 11412: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 11413:
1.503 albertel 11414: return "$num1:$num2";
1.443 albertel 11415: }
11416: }
11417:
1.575 albertel 11418: sub rndseed_64bit4 {
11419: my ($symb,$courseid,$domain,$username)=@_;
11420: {
11421: use integer;
11422: # strings need to be an even # of cahracters long, it it is odd the
11423: # last characters gets thrown away
11424: my $symbchck=unpack("%32S*",$symb.' ') << 21;
11425: my $symbseed=numval3($symb) << 10;
11426: my $namechck=unpack("%32S*",$username.' ');
11427:
11428: my $nameseed=numval3($username) << 21;
11429: my $domainseed=unpack("%32S*",$domain.' ') << 10;
11430: my $courseseed=unpack("%32S*",$courseid.' ');
11431:
11432: my $num1=$symbchck+$symbseed+$namechck;
11433: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 11434: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11435: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 11436: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 11437:
1.575 albertel 11438: return "$num1:$num2";
11439: }
11440: }
11441:
1.675 albertel 11442: sub rndseed_64bit5 {
11443: my ($symb,$courseid,$domain,$username)=@_;
11444: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
11445: return "$num1:$num2";
11446: }
11447:
1.366 albertel 11448: sub rndseed_CODE_64bit {
11449: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 11450: {
1.366 albertel 11451: use integer;
1.443 albertel 11452: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 11453: my $symbseed=numval2($symb);
1.491 albertel 11454: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11455: my $CODEseed=numval(&getCODE());
1.443 albertel 11456: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 11457: my $num1=$symbseed+$CODEchck;
11458: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11459: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11460: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 11461: if ($_64bit) { $num1=(($num1<<32)>>32); }
11462: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 11463: return "$num1:$num2";
1.366 albertel 11464: }
11465: }
11466:
1.575 albertel 11467: sub rndseed_CODE_64bit4 {
11468: my ($symb,$courseid,$domain,$username)=@_;
11469: {
11470: use integer;
11471: my $symbchck=unpack("%32S*",$symb.' ') << 16;
11472: my $symbseed=numval3($symb);
11473: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11474: my $CODEseed=numval3(&getCODE());
11475: my $courseseed=unpack("%32S*",$courseid.' ');
11476: my $num1=$symbseed+$CODEchck;
11477: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11478: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11479: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 11480: if ($_64bit) { $num1=(($num1<<32)>>32); }
11481: if ($_64bit) { $num2=(($num2<<32)>>32); }
11482: return "$num1:$num2";
11483: }
11484: }
11485:
1.675 albertel 11486: sub rndseed_CODE_64bit5 {
11487: my ($symb,$courseid,$domain,$username)=@_;
11488: my $code = &getCODE();
11489: my ($num1,$num2)=&digest("$symb,$courseid,$code");
11490: return "$num1:$num2";
11491: }
11492:
1.366 albertel 11493: sub setup_random_from_rndseed {
11494: my ($rndseed)=@_;
1.503 albertel 11495: if ($rndseed =~/([,:])/) {
1.1262 raeburn 11496: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
11497: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
11498: &Math::Random::random_set_seed_from_phrase($rndseed);
11499: } else {
11500: &Math::Random::random_set_seed($num1,$num2);
11501: }
1.366 albertel 11502: } else {
11503: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 11504: }
1.36 albertel 11505: }
11506:
1.474 albertel 11507: sub latest_receipt_algorithm_id {
1.835 albertel 11508: return 'receipt3';
1.474 albertel 11509: }
11510:
1.480 www 11511: sub recunique {
11512: my $fucourseid=shift;
11513: my $unique;
1.835 albertel 11514: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
11515: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11516: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 11517: } else {
11518: $unique=$perlvar{'lonReceipt'};
11519: }
11520: return unpack("%32C*",$unique);
11521: }
11522:
11523: sub recprefix {
11524: my $fucourseid=shift;
11525: my $prefix;
1.835 albertel 11526: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
11527: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11528: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 11529: } else {
11530: $prefix=$perlvar{'lonHostID'};
11531: }
11532: return unpack("%32C*",$prefix);
11533: }
11534:
1.76 www 11535: sub ireceipt {
1.474 albertel 11536: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 11537:
11538: my $return =&recprefix($fucourseid).'-';
11539:
11540: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
11541: $env{'request.state'} eq 'construct') {
11542: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
11543: return $return;
11544: }
11545:
1.76 www 11546: my $cuname=unpack("%32C*",$funame);
11547: my $cudom=unpack("%32C*",$fudom);
11548: my $cucourseid=unpack("%32C*",$fucourseid);
11549: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 11550: my $cunique=&recunique($fucourseid);
1.474 albertel 11551: my $cpart=unpack("%32S*",$part);
1.835 albertel 11552: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
11553:
1.790 albertel 11554: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 11555:
11556: $return.= ($cunique%$cuname+
11557: $cunique%$cudom+
11558: $cusymb%$cuname+
11559: $cusymb%$cudom+
11560: $cucourseid%$cuname+
11561: $cucourseid%$cudom+
11562: $cpart%$cuname+
11563: $cpart%$cudom);
11564: } else {
11565: $return.= ($cunique%$cuname+
11566: $cunique%$cudom+
11567: $cusymb%$cuname+
11568: $cusymb%$cudom+
11569: $cucourseid%$cuname+
11570: $cucourseid%$cudom);
11571: }
11572: return $return;
1.76 www 11573: }
11574:
11575: sub receipt {
1.474 albertel 11576: my ($part)=@_;
1.790 albertel 11577: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 11578: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 11579: }
1.260 ng 11580:
1.790 albertel 11581: sub whichuser {
11582: my ($passedsymb)=@_;
11583: my ($symb,$courseid,$domain,$name,$publicuser);
11584: if (defined($env{'form.grade_symb'})) {
11585: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
11586: my $allowed=&allowed('vgr',$tmp_courseid);
11587: if (!$allowed &&
11588: exists($env{'request.course.sec'}) &&
11589: $env{'request.course.sec'} !~ /^\s*$/) {
11590: $allowed=&allowed('vgr',$tmp_courseid.
11591: '/'.$env{'request.course.sec'});
11592: }
11593: if ($allowed) {
11594: ($symb)=&get_env_multiple('form.grade_symb');
11595: $courseid=$tmp_courseid;
11596: ($domain)=&get_env_multiple('form.grade_domain');
11597: ($name)=&get_env_multiple('form.grade_username');
11598: return ($symb,$courseid,$domain,$name,$publicuser);
11599: }
11600: }
11601: if (!$passedsymb) {
11602: $symb=&symbread();
11603: } else {
11604: $symb=$passedsymb;
11605: }
11606: $courseid=$env{'request.course.id'};
11607: $domain=$env{'user.domain'};
11608: $name=$env{'user.name'};
11609: if ($name eq 'public' && $domain eq 'public') {
11610: if (!defined($env{'form.username'})) {
11611: $env{'form.username'}.=time.rand(10000000);
11612: }
11613: $name.=$env{'form.username'};
11614: }
11615: return ($symb,$courseid,$domain,$name,$publicuser);
11616:
11617: }
11618:
1.36 albertel 11619: # ------------------------------------------------------------ Serves up a file
1.472 albertel 11620: # returns either the contents of the file or
11621: # -1 if the file doesn't exist
1.481 raeburn 11622: #
11623: # if the target is a file that was uploaded via DOCS,
11624: # a check will be made to see if a current copy exists on the local server,
11625: # if it does this will be served, otherwise a copy will be retrieved from
11626: # the home server for the course and stored in /home/httpd/html/userfiles on
11627: # the local server.
1.472 albertel 11628:
1.36 albertel 11629: sub getfile {
1.538 albertel 11630: my ($file) = @_;
1.609 banghart 11631: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 11632: &repcopy($file);
11633: return &readfile($file);
11634: }
11635:
11636: sub repcopy_userfile {
11637: my ($file)=@_;
1.1142 raeburn 11638: my $londocroot = $perlvar{'lonDocRoot'};
11639: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 11640: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 11641: my ($cdom,$cnum,$filename) =
1.811 albertel 11642: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 11643: my $uri="/uploaded/$cdom/$cnum/$filename";
11644: if (-e "$file") {
1.828 www 11645: # we already have a local copy, check it out
1.538 albertel 11646: my @fileinfo = stat($file);
1.828 www 11647: my $rtncode;
11648: my $info;
1.538 albertel 11649: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 11650: if ($lwpresp ne 'ok') {
1.828 www 11651: # there is no such file anymore, even though we had a local copy
1.482 albertel 11652: if ($rtncode eq '404') {
1.538 albertel 11653: unlink($file);
1.482 albertel 11654: }
11655: return -1;
11656: }
11657: if ($info < $fileinfo[9]) {
1.828 www 11658: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 11659: return 'ok';
1.828 www 11660: } else {
11661: # the file is outdated, get rid of it
11662: unlink($file);
1.482 albertel 11663: }
1.828 www 11664: }
11665: # one way or the other, at this point, we don't have the file
11666: # construct the correct path for the file
11667: my @parts = ($cdom,$cnum);
11668: if ($filename =~ m|^(.+)/[^/]+$|) {
11669: push @parts, split(/\//,$1);
11670: }
11671: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
11672: foreach my $part (@parts) {
11673: $path .= '/'.$part;
11674: if (!-e $path) {
11675: mkdir($path,0770);
1.482 albertel 11676: }
11677: }
1.828 www 11678: # now the path exists for sure
11679: # get a user agent
11680: my $ua=new LWP::UserAgent;
11681: my $transferfile=$file.'.in.transfer';
11682: # FIXME: this should flock
11683: if (-e $transferfile) { return 'ok'; }
11684: my $request;
11685: $uri=~s/^\///;
1.980 raeburn 11686: my $homeserver = &homeserver($cnum,$cdom);
11687: my $protocol = $protocol{$homeserver};
11688: $protocol = 'http' if ($protocol ne 'https');
11689: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 11690: my $response=$ua->request($request,$transferfile);
11691: # did it work?
11692: if ($response->is_error()) {
11693: unlink($transferfile);
11694: &logthis("Userfile repcopy failed for $uri");
11695: return -1;
11696: }
11697: # worked, rename the transfer file
11698: rename($transferfile,$file);
1.607 raeburn 11699: return 'ok';
1.481 raeburn 11700: }
11701:
1.517 albertel 11702: sub tokenwrapper {
11703: my $uri=shift;
1.980 raeburn 11704: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 11705: $uri=~s|^/||;
1.620 albertel 11706: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 11707: my $token=$1;
1.552 albertel 11708: my (undef,$udom,$uname,$file)=split('/',$uri,4);
11709: if ($udom && $uname && $file) {
11710: $file=~s|(\?\.*)*$||;
1.949 raeburn 11711: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 11712: my $homeserver = &homeserver($uname,$udom);
11713: my $protocol = $protocol{$homeserver};
11714: $protocol = 'http' if ($protocol ne 'https');
11715: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 11716: (($uri=~/\?/)?'&':'?').'token='.$token.
11717: '&tokenissued='.$perlvar{'lonHostID'};
11718: } else {
11719: return '/adm/notfound.html';
11720: }
11721: }
11722:
1.828 www 11723: # call with reqtype HEAD: get last modification time
11724: # call with reqtype GET: get the file contents
11725: # Do not call this with reqtype GET for large files! It loads everything into memory
11726: #
1.481 raeburn 11727: sub getuploaded {
11728: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
11729: $uri=~s/^\///;
1.980 raeburn 11730: my $homeserver = &homeserver($cnum,$cdom);
11731: my $protocol = $protocol{$homeserver};
11732: $protocol = 'http' if ($protocol ne 'https');
11733: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 11734: my $ua=new LWP::UserAgent;
11735: my $request=new HTTP::Request($reqtype,$uri);
11736: my $response=$ua->request($request);
11737: $$rtncode = $response->code;
1.482 albertel 11738: if (! $response->is_success()) {
11739: return 'failed';
11740: }
11741: if ($reqtype eq 'HEAD') {
1.486 www 11742: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 11743: } elsif ($reqtype eq 'GET') {
11744: $$info = $response->content;
1.472 albertel 11745: }
1.482 albertel 11746: return 'ok';
1.36 albertel 11747: }
11748:
1.481 raeburn 11749: sub readfile {
11750: my $file = shift;
11751: if ( (! -e $file ) || ($file eq '') ) { return -1; };
11752: my $fh;
11753: open($fh,"<$file");
11754: my $a='';
1.800 albertel 11755: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 11756: return $a;
11757: }
11758:
1.36 albertel 11759: sub filelocation {
1.590 banghart 11760: my ($dir,$file) = @_;
11761: my $location;
11762: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 11763:
11764: if ($file =~ m-^/adm/-) {
11765: $file=~s-^/adm/wrapper/-/-;
11766: $file=~s-^/adm/coursedocs/showdoc/-/-;
11767: }
1.882 albertel 11768:
1.1139 www 11769: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 11770: $location = $file;
1.609 banghart 11771: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 11772: my ($udom,$uname,$filename)=
1.811 albertel 11773: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 11774: my $home=&homeserver($uname,$udom);
11775: my $is_me=0;
11776: my @ids=¤t_machine_ids();
11777: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
11778: if ($is_me) {
1.1117 foxr 11779: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 11780: } else {
11781: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
11782: $udom.'/'.$uname.'/'.$filename;
11783: }
1.882 albertel 11784: } elsif ($file =~ m-^/adm/-) {
11785: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 11786: } else {
11787: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 11788: $file=~s:^/(res|priv)/:/:;
11789: my $space=$1;
1.590 banghart 11790: if ( !( $file =~ m:^/:) ) {
11791: $location = $dir. '/'.$file;
11792: } else {
1.1142 raeburn 11793: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 11794: }
1.59 albertel 11795: }
1.590 banghart 11796: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 11797: while ($location=~m{/\.\./}) {
11798: if ($location =~ m{/[^/]+/\.\./}) {
11799: $location=~ s{/[^/]+/\.\./}{/}g;
11800: } else {
11801: $location=~ s{/\.\./}{/}g;
11802: }
11803: } #remove dir/..
1.590 banghart 11804: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
11805: return $location;
1.46 www 11806: }
1.36 albertel 11807:
1.46 www 11808: sub hreflocation {
11809: my ($dir,$file)=@_;
1.980 raeburn 11810: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 11811: $file=filelocation($dir,$file);
1.700 albertel 11812: } elsif ($file=~m-^/adm/-) {
11813: $file=~s-^/adm/wrapper/-/-;
11814: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 11815: }
11816: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
11817: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
11818: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 11819: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
11820: {/uploaded/$1/$2/}x;
1.46 www 11821: }
1.913 albertel 11822: if ($file=~ m{^/userfiles/}) {
11823: $file =~ s{^/userfiles/}{/uploaded/};
11824: }
1.462 albertel 11825: return $file;
1.465 albertel 11826: }
11827:
1.1139 www 11828:
11829:
11830:
11831:
1.465 albertel 11832: sub current_machine_domains {
1.853 albertel 11833: return &machine_domains(&hostname($perlvar{'lonHostID'}));
11834: }
11835:
11836: sub machine_domains {
11837: my ($hostname) = @_;
1.465 albertel 11838: my @domains;
1.838 albertel 11839: my %hostname = &all_hostnames();
1.465 albertel 11840: while( my($id, $name) = each(%hostname)) {
1.467 matthew 11841: # &logthis("-$id-$name-$hostname-");
1.465 albertel 11842: if ($hostname eq $name) {
1.844 albertel 11843: push(@domains,&host_domain($id));
1.465 albertel 11844: }
11845: }
11846: return @domains;
11847: }
11848:
11849: sub current_machine_ids {
1.853 albertel 11850: return &machine_ids(&hostname($perlvar{'lonHostID'}));
11851: }
11852:
11853: sub machine_ids {
11854: my ($hostname) = @_;
11855: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 11856: my @ids;
1.888 albertel 11857: my %name_to_host = &all_names();
1.889 albertel 11858: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
11859: return @{ $name_to_host{$hostname} };
11860: }
11861: return;
1.31 www 11862: }
11863:
1.824 raeburn 11864: sub additional_machine_domains {
11865: my @domains;
11866: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
11867: while( my $line = <$fh>) {
11868: $line =~ s/\s//g;
11869: push(@domains,$line);
11870: }
11871: return @domains;
11872: }
11873:
11874: sub default_login_domain {
11875: my $domain = $perlvar{'lonDefDomain'};
11876: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
11877: foreach my $posdom (¤t_machine_domains(),
11878: &additional_machine_domains()) {
11879: if (lc($posdom) eq lc($testdomain)) {
11880: $domain=$posdom;
11881: last;
11882: }
11883: }
11884: return $domain;
11885: }
11886:
1.31 www 11887: # ------------------------------------------------------------- Declutters URLs
11888:
11889: sub declutter {
11890: my $thisfn=shift;
1.569 albertel 11891: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.1261 raeburn 11892: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
11893: $thisfn=~s{^/home/httpd/html}{};
11894: }
1.31 www 11895: $thisfn=~s/^\///;
1.697 albertel 11896: $thisfn=~s|^adm/wrapper/||;
11897: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 11898: $thisfn=~s/^res\///;
1.1172 bisitz 11899: $thisfn=~s/^priv\///;
1.1032 raeburn 11900: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
11901: $thisfn=~s/\?.+$//;
11902: }
1.268 www 11903: return $thisfn;
11904: }
11905:
11906: # ------------------------------------------------------------- Clutter up URLs
11907:
11908: sub clutter {
11909: my $thisfn='/'.&declutter(shift);
1.887 albertel 11910: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 11911: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 11912: $thisfn='/res'.$thisfn;
11913: }
1.1031 raeburn 11914: if ($thisfn !~m|^/adm|) {
11915: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 11916: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 11917: } else {
11918: my ($ext) = ($thisfn =~ /\.(\w+)$/);
11919: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 11920: if ($embstyle eq 'ssi'
11921: || ($embstyle eq 'hdn')
11922: || ($embstyle eq 'rat')
11923: || ($embstyle eq 'prv')
11924: || ($embstyle eq 'ign')) {
11925: #do nothing with these
11926: } elsif (($embstyle eq 'img')
1.695 albertel 11927: || ($embstyle eq 'emb')
11928: || ($embstyle eq 'wrp')) {
11929: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 11930: } elsif ($embstyle eq 'unk'
11931: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 11932: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 11933: } else {
1.718 www 11934: # &logthis("Got a blank emb style");
1.695 albertel 11935: }
1.694 albertel 11936: }
11937: }
1.31 www 11938: return $thisfn;
1.12 www 11939: }
11940:
1.787 albertel 11941: sub clutter_with_no_wrapper {
11942: my $uri = &clutter(shift);
11943: if ($uri =~ m-^/adm/-) {
11944: $uri =~ s-^/adm/wrapper/-/-;
11945: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
11946: }
11947: return $uri;
11948: }
11949:
1.557 albertel 11950: sub freeze_escape {
11951: my ($value)=@_;
11952: if (ref($value)) {
11953: $value=&nfreeze($value);
11954: return '__FROZEN__'.&escape($value);
11955: }
11956: return &escape($value);
11957: }
11958:
1.11 www 11959:
1.557 albertel 11960: sub thaw_unescape {
11961: my ($value)=@_;
11962: if ($value =~ /^__FROZEN__/) {
11963: substr($value,0,10,undef);
11964: $value=&unescape($value);
11965: return &thaw($value);
11966: }
11967: return &unescape($value);
11968: }
11969:
1.436 albertel 11970: sub correct_line_ends {
11971: my ($result)=@_;
11972: $$result =~s/\r\n/\n/mg;
11973: $$result =~s/\r/\n/mg;
1.415 albertel 11974: }
1.1 albertel 11975: # ================================================================ Main Program
11976:
1.184 www 11977: sub goodbye {
1.204 albertel 11978: &logthis("Starting Shut down");
1.443 albertel 11979: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 11980: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 11981: #converted
1.599 albertel 11982: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 11983: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
11984: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
11985: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 11986: #1.1 only
1.870 albertel 11987: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
11988: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
11989: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
11990: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
11991: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 11992: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
11993: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 11994: &flushcourselogs();
11995: &logthis("Shutting down");
11996: }
11997:
1.852 albertel 11998: sub get_dns {
1.1210 raeburn 11999: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 12000: if (!$ignore_cache) {
12001: my ($content,$cached)=
12002: &Apache::lonnet::is_cached_new('dns',$url);
12003: if ($cached) {
1.1210 raeburn 12004: &$func($content,$hashref);
1.869 albertel 12005: return;
12006: }
12007: }
12008:
12009: my %alldns;
1.852 albertel 12010: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
12011: foreach my $dns (<$config>) {
12012: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 12013: my $line = $1;
12014: my ($host,$protocol) = split(/:/,$line);
12015: if ($protocol ne 'https') {
12016: $protocol = 'http';
12017: }
12018: $alldns{$host} = $protocol;
1.869 albertel 12019: }
12020: while (%alldns) {
1.1263 raeburn 12021: my ($dns) = sort { $b cmp $a } keys(%alldns);
1.852 albertel 12022: my $ua=new LWP::UserAgent;
1.1134 raeburn 12023: $ua->timeout(30);
1.979 raeburn 12024: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 12025: my $response=$ua->request($request);
1.979 raeburn 12026: delete($alldns{$dns});
1.852 albertel 12027: next if ($response->is_error());
12028: my @content = split("\n",$response->content);
1.1210 raeburn 12029: unless ($nocache) {
1.1219 raeburn 12030: &do_cache_new('dns',$url,\@content,30*24*60*60);
1.1210 raeburn 12031: }
12032: &$func(\@content,$hashref);
1.869 albertel 12033: return;
1.852 albertel 12034: }
12035: close($config);
1.871 albertel 12036: my $which = (split('/',$url))[3];
12037: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
12038: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 12039: my @content = <$config>;
1.1210 raeburn 12040: &$func(\@content,$hashref);
12041: return;
12042: }
12043:
12044: # ------------------------------------------------------Get DNS checksums file
1.1211 raeburn 12045: sub parse_dns_checksums_tab {
1.1210 raeburn 12046: my ($lines,$hashref) = @_;
1.1264 raeburn 12047: my $lonhost = $perlvar{'lonHostID'};
12048: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
1.1210 raeburn 12049: my $loncaparev = &get_server_loncaparev($machine_dom);
1.1264 raeburn 12050: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
12051: my $webconfdir = '/etc/httpd/conf';
12052: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
12053: $webconfdir = '/etc/apache2';
12054: } elsif ($distro =~ /^sles(\d+)$/) {
12055: if ($1 >= 10) {
12056: $webconfdir = '/etc/apache2';
12057: }
12058: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
12059: if ($1 >= 10.0) {
12060: $webconfdir = '/etc/apache2';
12061: }
12062: }
1.1210 raeburn 12063: my ($release,$timestamp) = split(/\-/,$loncaparev);
12064: my (%chksum,%revnum);
12065: if (ref($lines) eq 'ARRAY') {
12066: chomp(@{$lines});
1.1238 raeburn 12067: my $version = shift(@{$lines});
12068: if ($version eq $release) {
1.1210 raeburn 12069: foreach my $line (@{$lines}) {
1.1238 raeburn 12070: my ($file,$version,$shasum) = split(/,/,$line);
1.1264 raeburn 12071: if ($file =~ m{^/etc/httpd/conf}) {
12072: if ($webconfdir eq '/etc/apache2') {
12073: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
12074: }
12075: }
1.1238 raeburn 12076: $chksum{$file} = $shasum;
12077: $revnum{$file} = $version;
1.1210 raeburn 12078: }
12079: if (ref($hashref) eq 'HASH') {
12080: %{$hashref} = (
12081: sums => \%chksum,
12082: versions => \%revnum,
12083: );
12084: }
12085: }
12086: }
1.869 albertel 12087: return;
1.852 albertel 12088: }
1.1210 raeburn 12089:
12090: sub fetch_dns_checksums {
1.1238 raeburn 12091: my %checksums;
12092: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
1.1260 raeburn 12093: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
1.1238 raeburn 12094: my ($release,$timestamp) = split(/\-/,$loncaparev);
12095: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
1.1211 raeburn 12096: \%checksums);
1.1210 raeburn 12097: return \%checksums;
12098: }
12099:
1.327 albertel 12100: # ------------------------------------------------------------ Read domain file
12101: {
1.852 albertel 12102: my $loaded;
1.846 albertel 12103: my %domain;
12104:
1.852 albertel 12105: sub parse_domain_tab {
12106: my ($lines) = @_;
12107: foreach my $line (@$lines) {
12108: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 12109:
1.846 albertel 12110: chomp($line);
1.852 albertel 12111: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 12112: my %this_domain;
12113: foreach my $field ('description', 'auth_def', 'auth_arg_def',
12114: 'lang_def', 'city', 'longi', 'lati',
12115: 'primary') {
12116: $this_domain{$field} = shift(@elements);
12117: }
12118: $domain{$name} = \%this_domain;
1.852 albertel 12119: }
12120: }
1.864 albertel 12121:
12122: sub reset_domain_info {
12123: undef($loaded);
12124: undef(%domain);
12125: }
12126:
1.852 albertel 12127: sub load_domain_tab {
1.869 albertel 12128: my ($ignore_cache) = @_;
12129: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 12130: my $fh;
12131: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
12132: my @lines = <$fh>;
12133: &parse_domain_tab(\@lines);
1.448 albertel 12134: }
1.852 albertel 12135: close($fh);
12136: $loaded = 1;
1.327 albertel 12137: }
1.846 albertel 12138:
12139: sub domain {
1.852 albertel 12140: &load_domain_tab() if (!$loaded);
12141:
1.846 albertel 12142: my ($name,$what) = @_;
12143: return if ( !exists($domain{$name}) );
12144:
12145: if (!$what) {
12146: return $domain{$name}{'description'};
12147: }
12148: return $domain{$name}{$what};
12149: }
1.974 raeburn 12150:
12151: sub domain_info {
12152: &load_domain_tab() if (!$loaded);
12153: return %domain;
12154: }
12155:
1.327 albertel 12156: }
12157:
12158:
1.1 albertel 12159: # ------------------------------------------------------------- Read hosts file
12160: {
1.838 albertel 12161: my %hostname;
1.844 albertel 12162: my %hostdom;
1.845 albertel 12163: my %libserv;
1.852 albertel 12164: my $loaded;
1.888 albertel 12165: my %name_to_host;
1.1074 raeburn 12166: my %internetdom;
1.1107 raeburn 12167: my %LC_dns_serv;
1.852 albertel 12168:
12169: sub parse_hosts_tab {
12170: my ($file) = @_;
12171: foreach my $configline (@$file) {
12172: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 12173: chomp($configline);
12174: if ($configline =~ /^\^/) {
12175: if ($configline =~ /^\^([\w.\-]+)/) {
12176: $LC_dns_serv{$1} = 1;
12177: }
12178: next;
12179: }
1.1074 raeburn 12180: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 12181: $name=~s/\s//g;
12182: if ($id && $domain && $role && $name) {
12183: $hostname{$id}=$name;
1.888 albertel 12184: push(@{$name_to_host{$name}}, $id);
1.852 albertel 12185: $hostdom{$id}=$domain;
12186: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 12187: if (defined($protocol)) {
12188: if ($protocol eq 'https') {
12189: $protocol{$id} = $protocol;
12190: } else {
12191: $protocol{$id} = 'http';
12192: }
1.968 raeburn 12193: } else {
1.969 raeburn 12194: $protocol{$id} = 'http';
1.968 raeburn 12195: }
1.1074 raeburn 12196: if (defined($intdom)) {
12197: $internetdom{$id} = $intdom;
12198: }
1.852 albertel 12199: }
12200: }
12201: }
1.864 albertel 12202:
12203: sub reset_hosts_info {
1.897 albertel 12204: &purge_remembered();
1.864 albertel 12205: &reset_domain_info();
12206: &reset_hosts_ip_info();
1.892 albertel 12207: undef(%name_to_host);
1.864 albertel 12208: undef(%hostname);
12209: undef(%hostdom);
12210: undef(%libserv);
12211: undef($loaded);
12212: }
1.1 albertel 12213:
1.852 albertel 12214: sub load_hosts_tab {
1.869 albertel 12215: my ($ignore_cache) = @_;
12216: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 12217: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
12218: my @config = <$config>;
12219: &parse_hosts_tab(\@config);
12220: close($config);
12221: $loaded=1;
1.1 albertel 12222: }
1.852 albertel 12223:
1.838 albertel 12224: sub hostname {
1.852 albertel 12225: &load_hosts_tab() if (!$loaded);
12226:
1.838 albertel 12227: my ($lonid) = @_;
12228: return $hostname{$lonid};
12229: }
1.845 albertel 12230:
1.838 albertel 12231: sub all_hostnames {
1.852 albertel 12232: &load_hosts_tab() if (!$loaded);
12233:
1.838 albertel 12234: return %hostname;
12235: }
1.845 albertel 12236:
1.888 albertel 12237: sub all_names {
12238: &load_hosts_tab() if (!$loaded);
12239:
12240: return %name_to_host;
12241: }
12242:
1.974 raeburn 12243: sub all_host_domain {
12244: &load_hosts_tab() if (!$loaded);
12245: return %hostdom;
12246: }
12247:
1.845 albertel 12248: sub is_library {
1.852 albertel 12249: &load_hosts_tab() if (!$loaded);
12250:
1.845 albertel 12251: return exists($libserv{$_[0]});
12252: }
12253:
12254: sub all_library {
1.852 albertel 12255: &load_hosts_tab() if (!$loaded);
12256:
1.845 albertel 12257: return %libserv;
12258: }
12259:
1.1062 droeschl 12260: sub unique_library {
12261: #2x reverse removes all hostnames that appear more than once
12262: my %unique = reverse &all_library();
12263: return reverse %unique;
12264: }
12265:
1.841 albertel 12266: sub get_servers {
1.852 albertel 12267: &load_hosts_tab() if (!$loaded);
12268:
1.841 albertel 12269: my ($domain,$type) = @_;
12270: my %possible_hosts = ($type eq 'library') ? %libserv
12271: : %hostname;
12272: my %result;
1.842 albertel 12273: if (ref($domain) eq 'ARRAY') {
12274: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 12275: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 12276: $result{$host} = $hostname;
12277: }
12278: }
12279: } else {
12280: while ( my ($host,$hostname) = each(%possible_hosts)) {
12281: if ($hostdom{$host} eq $domain) {
12282: $result{$host} = $hostname;
12283: }
1.841 albertel 12284: }
12285: }
12286: return %result;
12287: }
1.845 albertel 12288:
1.1062 droeschl 12289: sub get_unique_servers {
12290: my %unique = reverse &get_servers(@_);
12291: return reverse %unique;
12292: }
12293:
1.844 albertel 12294: sub host_domain {
1.852 albertel 12295: &load_hosts_tab() if (!$loaded);
12296:
1.844 albertel 12297: my ($lonid) = @_;
12298: return $hostdom{$lonid};
12299: }
12300:
1.841 albertel 12301: sub all_domains {
1.852 albertel 12302: &load_hosts_tab() if (!$loaded);
12303:
1.841 albertel 12304: my %seen;
12305: my @uniq = grep(!$seen{$_}++, values(%hostdom));
12306: return @uniq;
12307: }
1.1074 raeburn 12308:
12309: sub internet_dom {
12310: &load_hosts_tab() if (!$loaded);
12311:
12312: my ($lonid) = @_;
12313: return $internetdom{$lonid};
12314: }
1.1107 raeburn 12315:
12316: sub is_LC_dns {
12317: &load_hosts_tab() if (!$loaded);
12318:
12319: my ($hostname) = @_;
12320: return exists($LC_dns_serv{$hostname});
12321: }
12322:
1.1 albertel 12323: }
12324:
1.847 albertel 12325: {
12326: my %iphost;
1.856 albertel 12327: my %name_to_ip;
12328: my %lonid_to_ip;
1.869 albertel 12329:
1.847 albertel 12330: sub get_hosts_from_ip {
12331: my ($ip) = @_;
12332: my %iphosts = &get_iphost();
12333: if (ref($iphosts{$ip})) {
12334: return @{$iphosts{$ip}};
12335: }
12336: return;
1.839 albertel 12337: }
1.864 albertel 12338:
12339: sub reset_hosts_ip_info {
12340: undef(%iphost);
12341: undef(%name_to_ip);
12342: undef(%lonid_to_ip);
12343: }
1.856 albertel 12344:
12345: sub get_host_ip {
12346: my ($lonid) = @_;
12347: if (exists($lonid_to_ip{$lonid})) {
12348: return $lonid_to_ip{$lonid};
12349: }
12350: my $name=&hostname($lonid);
12351: my $ip = gethostbyname($name);
12352: return if (!$ip || length($ip) ne 4);
12353: $ip=inet_ntoa($ip);
12354: $name_to_ip{$name} = $ip;
12355: $lonid_to_ip{$lonid} = $ip;
12356: return $ip;
12357: }
1.847 albertel 12358:
12359: sub get_iphost {
1.869 albertel 12360: my ($ignore_cache) = @_;
1.894 albertel 12361:
1.869 albertel 12362: if (!$ignore_cache) {
12363: if (%iphost) {
12364: return %iphost;
12365: }
12366: my ($ip_info,$cached)=
12367: &Apache::lonnet::is_cached_new('iphost','iphost');
12368: if ($cached) {
12369: %iphost = %{$ip_info->[0]};
12370: %name_to_ip = %{$ip_info->[1]};
12371: %lonid_to_ip = %{$ip_info->[2]};
12372: return %iphost;
12373: }
12374: }
1.894 albertel 12375:
12376: # get yesterday's info for fallback
12377: my %old_name_to_ip;
12378: my ($ip_info,$cached)=
12379: &Apache::lonnet::is_cached_new('iphost','iphost');
12380: if ($cached) {
12381: %old_name_to_ip = %{$ip_info->[1]};
12382: }
12383:
1.888 albertel 12384: my %name_to_host = &all_names();
12385: foreach my $name (keys(%name_to_host)) {
1.847 albertel 12386: my $ip;
12387: if (!exists($name_to_ip{$name})) {
12388: $ip = gethostbyname($name);
12389: if (!$ip || length($ip) ne 4) {
1.894 albertel 12390: if (defined($old_name_to_ip{$name})) {
12391: $ip = $old_name_to_ip{$name};
12392: &logthis("Can't find $name defaulting to old $ip");
12393: } else {
12394: &logthis("Name $name no IP found");
12395: next;
12396: }
12397: } else {
12398: $ip=inet_ntoa($ip);
1.847 albertel 12399: }
12400: $name_to_ip{$name} = $ip;
12401: } else {
12402: $ip = $name_to_ip{$name};
1.653 albertel 12403: }
1.888 albertel 12404: foreach my $id (@{ $name_to_host{$name} }) {
12405: $lonid_to_ip{$id} = $ip;
12406: }
12407: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 12408: }
1.1219 raeburn 12409: &do_cache_new('iphost','iphost',
12410: [\%iphost,\%name_to_ip,\%lonid_to_ip],
12411: 48*60*60);
1.869 albertel 12412:
1.847 albertel 12413: return %iphost;
1.598 albertel 12414: }
12415:
1.992 raeburn 12416: #
12417: # Given a DNS returns the loncapa host name for that DNS
12418: #
12419: sub host_from_dns {
12420: my ($dns) = @_;
12421: my @hosts;
12422: my $ip;
12423:
1.993 raeburn 12424: if (exists($name_to_ip{$dns})) {
1.992 raeburn 12425: $ip = $name_to_ip{$dns};
12426: }
12427: if (!$ip) {
12428: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
12429: if (length($ip) == 4) {
12430: $ip = &IO::Socket::inet_ntoa($ip);
12431: }
12432: }
12433: if ($ip) {
12434: @hosts = get_hosts_from_ip($ip);
12435: return $hosts[0];
12436: }
12437: return undef;
1.986 foxr 12438: }
1.992 raeburn 12439:
1.1074 raeburn 12440: sub get_internet_names {
12441: my ($lonid) = @_;
12442: return if ($lonid eq '');
12443: my ($idnref,$cached)=
12444: &Apache::lonnet::is_cached_new('internetnames',$lonid);
12445: if ($cached) {
12446: return $idnref;
12447: }
12448: my $ip = &get_host_ip($lonid);
12449: my @hosts = &get_hosts_from_ip($ip);
12450: my %iphost = &get_iphost();
12451: my (@idns,%seen);
12452: foreach my $id (@hosts) {
12453: my $dom = &host_domain($id);
12454: my $prim_id = &domain($dom,'primary');
12455: my $prim_ip = &get_host_ip($prim_id);
12456: next if ($seen{$prim_ip});
12457: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
12458: foreach my $id (@{$iphost{$prim_ip}}) {
12459: my $intdom = &internet_dom($id);
12460: unless (grep(/^\Q$intdom\E$/,@idns)) {
12461: push(@idns,$intdom);
12462: }
12463: }
12464: }
12465: $seen{$prim_ip} = 1;
12466: }
1.1219 raeburn 12467: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
1.1074 raeburn 12468: }
12469:
1.986 foxr 12470: }
12471:
1.1079 raeburn 12472: sub all_loncaparevs {
1.1249 raeburn 12473: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
1.1079 raeburn 12474: }
12475:
1.1227 raeburn 12476: # ---------------------------------------------------------- Read loncaparev table
12477: {
12478: sub load_loncaparevs {
12479: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
12480: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
12481: while (my $configline=<$config>) {
12482: chomp($configline);
12483: my ($hostid,$loncaparev)=split(/:/,$configline);
12484: $loncaparevs{$hostid}=$loncaparev;
12485: }
12486: close($config);
12487: }
12488: }
12489: }
12490: }
12491:
12492: # ---------------------------------------------------------- Read serverhostID table
12493: {
12494: sub load_serverhomeIDs {
12495: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
12496: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
12497: while (my $configline=<$config>) {
12498: chomp($configline);
12499: my ($name,$id)=split(/:/,$configline);
12500: $serverhomeIDs{$name}=$id;
12501: }
12502: close($config);
12503: }
12504: }
12505: }
12506: }
12507:
12508:
1.862 albertel 12509: BEGIN {
12510:
12511: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
12512: unless ($readit) {
12513: {
12514: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
12515: %perlvar = (%perlvar,%{$configvars});
12516: }
12517:
12518:
1.1 albertel 12519: # ------------------------------------------------------ Read spare server file
12520: {
1.448 albertel 12521: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 12522:
12523: while (my $configline=<$config>) {
12524: chomp($configline);
1.284 matthew 12525: if ($configline) {
1.784 albertel 12526: my ($host,$type) = split(':',$configline,2);
1.785 albertel 12527: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 12528: push(@{ $spareid{$type} }, $host);
1.1 albertel 12529: }
12530: }
1.448 albertel 12531: close($config);
1.1 albertel 12532: }
1.11 www 12533: # ------------------------------------------------------------ Read permissions
12534: {
1.448 albertel 12535: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 12536:
12537: while (my $configline=<$config>) {
1.448 albertel 12538: chomp($configline);
12539: if ($configline) {
12540: my ($role,$perm)=split(/ /,$configline);
12541: if ($perm ne '') { $pr{$role}=$perm; }
12542: }
1.11 www 12543: }
1.448 albertel 12544: close($config);
1.11 www 12545: }
12546:
12547: # -------------------------------------------- Read plain texts for permissions
12548: {
1.448 albertel 12549: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 12550:
12551: while (my $configline=<$config>) {
1.448 albertel 12552: chomp($configline);
12553: if ($configline) {
1.742 raeburn 12554: my ($short,@plain)=split(/:/,$configline);
12555: %{$prp{$short}} = ();
12556: if (@plain > 0) {
12557: $prp{$short}{'std'} = $plain[0];
12558: for (my $i=1; $i<@plain; $i++) {
12559: $prp{$short}{'alt'.$i} = $plain[$i];
12560: }
12561: }
1.448 albertel 12562: }
1.135 www 12563: }
1.448 albertel 12564: close($config);
1.135 www 12565: }
12566:
12567: # ---------------------------------------------------------- Read package table
12568: {
1.448 albertel 12569: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 12570:
12571: while (my $configline=<$config>) {
1.483 albertel 12572: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 12573: chomp($configline);
12574: my ($short,$plain)=split(/:/,$configline);
12575: my ($pack,$name)=split(/\&/,$short);
12576: if ($plain ne '') {
12577: $packagetab{$pack.'&'.$name.'&name'}=$name;
12578: $packagetab{$short}=$plain;
12579: }
1.11 www 12580: }
1.448 albertel 12581: close($config);
1.329 matthew 12582: }
12583:
1.1073 raeburn 12584: # ---------------------------------------------------------- Read loncaparev table
1.1227 raeburn 12585:
12586: &load_loncaparevs();
1.1073 raeburn 12587:
1.1074 raeburn 12588: # ---------------------------------------------------------- Read serverhostID table
12589:
1.1227 raeburn 12590: &load_serverhomeIDs();
12591:
12592: # ---------------------------------------------------------- Read releaseslist XML
1.1079 raeburn 12593: {
12594: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
12595: if (-e $file) {
12596: my $parser = HTML::LCParser->new($file);
12597: while (my $token = $parser->get_token()) {
12598: if ($token->[0] eq 'S') {
12599: my $item = $token->[1];
12600: my $name = $token->[2]{'name'};
12601: my $value = $token->[2]{'value'};
12602: if ($item ne '' && $name ne '' && $value ne '') {
12603: my $release = $parser->get_text();
12604: $release =~ s/(^\s*|\s*$ )//gx;
12605: $needsrelease{$item.':'.$name.':'.$value} = $release;
12606: }
12607: }
12608: }
12609: }
1.1073 raeburn 12610: }
12611:
1.1138 raeburn 12612: # ---------------------------------------------------------- Read managers table
12613: {
12614: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
12615: if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
12616: while (my $configline=<$config>) {
12617: chomp($configline);
12618: next if ($configline =~ /^\#/);
12619: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
12620: $managerstab{$configline} = 1;
12621: }
12622: }
12623: close($config);
12624: }
12625: }
12626: }
12627:
1.329 matthew 12628: # ------------- set up temporary directory
12629: {
1.1117 foxr 12630: $tmpdir = LONCAPA::tempdir();
1.329 matthew 12631:
1.11 www 12632: }
12633:
1.794 albertel 12634: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
12635: 'compress_threshold'=> 20_000,
12636: });
1.185 www 12637:
1.281 www 12638: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 12639: $dumpcount=0;
1.958 www 12640: $locknum=0;
1.22 www 12641:
1.163 harris41 12642: &logtouch();
1.672 albertel 12643: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 12644: $readit=1;
1.564 albertel 12645: {
12646: use integer;
12647: my $test=(2**32)+1;
1.568 albertel 12648: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 12649: &logthis(" Detected 64bit platform ($_64bit)");
12650: }
1.195 www 12651: }
1.1 albertel 12652: }
1.179 www 12653:
1.1 albertel 12654: 1;
1.191 harris41 12655: __END__
12656:
1.243 albertel 12657: =pod
12658:
1.191 harris41 12659: =head1 NAME
12660:
1.243 albertel 12661: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 12662:
12663: =head1 SYNOPSIS
12664:
1.243 albertel 12665: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 12666:
12667: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
12668:
1.243 albertel 12669: Common parameters:
12670:
12671: =over 4
12672:
12673: =item *
12674:
12675: $uname : an internal username (if $cname expecting a course Id specifically)
12676:
12677: =item *
12678:
12679: $udom : a domain (if $cdom expecting a course's domain specifically)
12680:
12681: =item *
12682:
12683: $symb : a resource instance identifier
12684:
12685: =item *
12686:
12687: $namespace : the name of a .db file that contains the data needed or
12688: being set.
12689:
12690: =back
12691:
1.394 bowersj2 12692: =head1 OVERVIEW
1.191 harris41 12693:
1.394 bowersj2 12694: lonnet provides subroutines which interact with the
12695: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
12696: about classes, users, and resources.
1.243 albertel 12697:
12698: For many of these objects you can also use this to store data about
12699: them or modify them in various ways.
1.191 harris41 12700:
1.394 bowersj2 12701: =head2 Symbs
1.191 harris41 12702:
1.394 bowersj2 12703: To identify a specific instance of a resource, LON-CAPA uses symbols
12704: or "symbs"X<symb>. These identifiers are built from the URL of the
12705: map, the resource number of the resource in the map, and the URL of
12706: the resource itself. The latter is somewhat redundant, but might help
12707: if maps change.
12708:
12709: An example is
12710:
12711: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
12712:
12713: The respective map entry is
12714:
12715: <resource id="19" src="/res/msu/korte/tests/part12.problem"
12716: title="Problem 2">
12717: </resource>
12718:
12719: Symbs are used by the random number generator, as well as to store and
12720: restore data specific to a certain instance of for example a problem.
12721:
12722: =head2 Storing And Retrieving Data
12723:
12724: X<store()>X<cstore()>X<restore()>Three of the most important functions
12725: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
12726: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
12727: is is the non-critical message twin of cstore. These functions are for
12728: handlers to store a perl hash to a user's permanent data space in an
12729: easy manner, and to retrieve it again on another call. It is expected
12730: that a handler would use this once at the beginning to retrieve data,
12731: and then again once at the end to send only the new data back.
12732:
12733: The data is stored in the user's data directory on the user's
12734: homeserver under the ID of the course.
12735:
12736: The hash that is returned by restore will have all of the previous
12737: value for all of the elements of the hash.
12738:
12739: Example:
12740:
12741: #creating a hash
12742: my %hash;
12743: $hash{'foo'}='bar';
12744:
12745: #storing it
12746: &Apache::lonnet::cstore(\%hash);
12747:
12748: #changing a value
12749: $hash{'foo'}='notbar';
12750:
12751: #adding a new value
12752: $hash{'bar'}='foo';
12753: &Apache::lonnet::cstore(\%hash);
12754:
12755: #retrieving the hash
12756: my %history=&Apache::lonnet::restore();
12757:
12758: #print the hash
12759: foreach my $key (sort(keys(%history))) {
12760: print("\%history{$key} = $history{$key}");
12761: }
12762:
12763: Will print out:
1.191 harris41 12764:
1.394 bowersj2 12765: %history{1:foo} = bar
12766: %history{1:keys} = foo:timestamp
12767: %history{1:timestamp} = 990455579
12768: %history{2:bar} = foo
12769: %history{2:foo} = notbar
12770: %history{2:keys} = foo:bar:timestamp
12771: %history{2:timestamp} = 990455580
12772: %history{bar} = foo
12773: %history{foo} = notbar
12774: %history{timestamp} = 990455580
12775: %history{version} = 2
12776:
12777: Note that the special hash entries C<keys>, C<version> and
12778: C<timestamp> were added to the hash. C<version> will be equal to the
12779: total number of versions of the data that have been stored. The
12780: C<timestamp> attribute will be the UNIX time the hash was
12781: stored. C<keys> is available in every historical section to list which
12782: keys were added or changed at a specific historical revision of a
12783: hash.
12784:
12785: B<Warning>: do not store the hash that restore returns directly. This
12786: will cause a mess since it will restore the historical keys as if the
12787: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 12788:
1.394 bowersj2 12789: Calling convention:
1.191 harris41 12790:
1.1225 raeburn 12791: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
1.1269 raeburn 12792: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
1.191 harris41 12793:
1.394 bowersj2 12794: For more detailed information, see lonnet specific documentation.
1.191 harris41 12795:
1.394 bowersj2 12796: =head1 RETURN MESSAGES
1.191 harris41 12797:
1.394 bowersj2 12798: =over 4
1.191 harris41 12799:
1.394 bowersj2 12800: =item * B<con_lost>: unable to contact remote host
1.191 harris41 12801:
1.394 bowersj2 12802: =item * B<con_delayed>: unable to contact remote host, message will be delivered
12803: when the connection is brought back up
1.191 harris41 12804:
1.394 bowersj2 12805: =item * B<con_failed>: unable to contact remote host and unable to save message
12806: for later delivery
1.191 harris41 12807:
1.967 bisitz 12808: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 12809:
1.394 bowersj2 12810: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 12811: that was requested
1.191 harris41 12812:
1.243 albertel 12813: =back
1.191 harris41 12814:
1.243 albertel 12815: =head1 PUBLIC SUBROUTINES
1.191 harris41 12816:
1.243 albertel 12817: =head2 Session Environment Functions
1.191 harris41 12818:
1.243 albertel 12819: =over 4
1.191 harris41 12820:
1.394 bowersj2 12821: =item *
12822: X<appenv()>
1.949 raeburn 12823: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 12824: the user envirnoment file, and will be restored for each access this
1.620 albertel 12825: user makes during this session, also modifies the %env for the current
1.949 raeburn 12826: process. Optional rolesarrayref - if defined contains a reference to an array
12827: of roles which are exempt from the restriction on modifying user.role entries
12828: in the user's environment.db and in %env.
1.191 harris41 12829:
12830: =item *
1.394 bowersj2 12831: X<delenv()>
1.987 raeburn 12832: B<delenv($delthis,$regexp)>: removes all items from the session
12833: environment file that begin with $delthis. If the
12834: optional second arg - $regexp - is true, $delthis is treated as a
12835: regular expression, otherwise \Q$delthis\E is used.
12836: The values are also deleted from the current processes %env.
1.191 harris41 12837:
1.795 albertel 12838: =item * get_env_multiple($name)
12839:
12840: gets $name from the %env hash, it seemlessly handles the cases where multiple
12841: values may be defined and end up as an array ref.
12842:
12843: returns an array of values
12844:
1.243 albertel 12845: =back
12846:
12847: =head2 User Information
1.191 harris41 12848:
1.243 albertel 12849: =over 4
1.191 harris41 12850:
12851: =item *
1.394 bowersj2 12852: X<queryauthenticate()>
12853: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 12854: authentication scheme
12855:
12856: =item *
1.394 bowersj2 12857: X<authenticate()>
1.1073 raeburn 12858: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 12859: authenticate user from domain's lib servers (first use the current
12860: one). C<$upass> should be the users password.
1.1073 raeburn 12861: $checkdefauth is optional (value is 1 if a check should be made to
12862: authenticate user using default authentication method, and allow
12863: account creation if username does not have account in the domain).
12864: $clientcancheckhost is optional (value is 1 if checking whether the
12865: server can host will occur on the client side in lonauth.pm).
1.191 harris41 12866:
12867: =item *
1.394 bowersj2 12868: X<homeserver()>
12869: B<homeserver($uname,$udom)>: find the server which has
12870: the user's directory and files (there must be only one), this caches
12871: the answer, and also caches if there is a borken connection.
1.191 harris41 12872:
12873: =item *
1.394 bowersj2 12874: X<idget()>
12875: B<idget($udom,@ids)>: find the usernames behind a list of IDs
12876: (IDs are a unique resource in a domain, there must be only 1 ID per
12877: username, and only 1 username per ID in a specific domain) (returns
12878: hash: id=>name,id=>name)
1.191 harris41 12879:
12880: =item *
1.394 bowersj2 12881: X<idrget()>
12882: B<idrget($udom,@unames)>: find the IDs behind a list of
12883: usernames (returns hash: name=>id,name=>id)
1.191 harris41 12884:
12885: =item *
1.394 bowersj2 12886: X<idput()>
12887: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 12888:
12889: =item *
1.394 bowersj2 12890: X<rolesinit()>
1.1169 droeschl 12891: B<rolesinit($udom,$username)>: get user privileges.
12892: returns user role, first access and timer interval hashes
1.243 albertel 12893:
12894: =item *
1.1171 droeschl 12895: X<privileged()>
12896: B<privileged($username,$domain)>: returns a true if user has a
12897: privileged and active role (i.e. su or dc), false otherwise.
12898:
12899: =item *
1.551 albertel 12900: X<getsection()>
12901: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 12902: course $cname, return section name/number or '' for "not in course"
12903: and '-1' for "no section"
12904:
12905: =item *
1.394 bowersj2 12906: X<userenvironment()>
12907: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 12908: passed in @what from the requested user's environment, returns a hash
12909:
1.858 raeburn 12910: =item *
12911: X<userlog_query()>
1.859 albertel 12912: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
12913: activity.log file. %filters defines filters applied when parsing the
12914: log file. These can be start or end timestamps, or the type of action
12915: - log to look for Login or Logout events, check for Checkin or
12916: Checkout, role for role selection. The response is in the form
12917: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
12918: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 12919:
1.243 albertel 12920: =back
12921:
12922: =head2 User Roles
12923:
12924: =over 4
12925:
12926: =item *
12927:
1.810 raeburn 12928: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 12929: F: full access
12930: U,I,K: authentication modes (cxx only)
12931: '': forbidden
12932: 1: user needs to choose course
12933: 2: browse allowed
1.766 albertel 12934: A: passphrase authentication needed
1.243 albertel 12935:
12936: =item *
12937:
1.1192 raeburn 12938: constructaccess($url,$setpriv) : check for access to construction space URL
12939:
12940: See if the owner domain and name in the URL match those in the
12941: expected environment. If so, return three element list
12942: ($ownername,$ownerdomain,$ownerhome).
12943:
12944: Otherwise return the null string.
12945:
12946: If second argument 'setpriv' is true, it assigns the privileges,
12947: and returns the same three element list, unless the owner has
12948: blocked "ad hoc" Domain Coordinator access to the Author Space,
12949: in which case the null string is returned.
12950:
12951: =item *
12952:
1.243 albertel 12953: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
12954: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
12955: and course level
12956:
12957: =item *
12958:
1.988 raeburn 12959: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
12960: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 12961: $type is Course (default) or Community.
1.988 raeburn 12962: If $forcedefault evaluates to true, text returned will be default
12963: text for $type. Otherwise, if this is a course, the text returned
12964: will be a custom name for the role (if defined in the course's
12965: environment). If no custom name is defined the default is returned.
12966:
1.832 raeburn 12967: =item *
12968:
1.1219 raeburn 12969: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
1.858 raeburn 12970: All arguments are optional. Returns a hash of a roles, either for
12971: co-author/assistant author roles for a user's Construction Space
1.906 albertel 12972: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 12973: In the hash, keys are set to colon-separated $uname,$udom,$role, and
12974: (optionally) if $withsec is true, a fourth colon-separated item - $section.
12975: For each key, value is set to colon-separated start and end times for
12976: the role. If no username and domain are specified, will default to
1.934 raeburn 12977: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 12978: of role statuses (active, future or previous), roles
12979: (e.g., cc,in, st etc.) and domains of the roles which can be used
12980: to restrict the list of roles reported. If no array ref is
12981: provided for types, will default to return only active roles.
1.834 albertel 12982:
1.1195 raeburn 12983: =item *
12984:
12985: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
1.1196 raeburn 12986: user: $uname:$udom has a role in the course: $cdom_$cnum.
12987:
12988: Additional optional arguments are: $type (if role checking is to be restricted
12989: to certain user status types -- previous (expired roles), active (currently
1.1195 raeburn 12990: available roles) or future (roles available in the future), and
12991: $hideprivileged -- if true will not report course roles for users who
1.1219 raeburn 12992: have active Domain Coordinator role in course's domain or in additional
12993: domains (specified in 'Domains to check for privileged users' in course
12994: environment -- set via: Course Settings -> Classlists and staff listing).
12995:
12996: =item *
12997:
12998: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
12999: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
13000: $possdomains and $possroles are optional array refs -- to domains to check and
13001: roles to check. If $possdomains is not specified, a dump will be done of the
13002: users' roles.db to check for a dc or su role in any domain. This can be
13003: time consuming if &privileged is called repeatedly (e.g., when displaying a
13004: classlist), so in such cases, supplying a $possdomains array is preferred, as
13005: this then allows &privileged_by_domain() to be used, which caches the identity
13006: of privileged users, eliminating the need for repeated calls to &dump().
13007:
13008: =item *
13009:
13010: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
13011: where the outer hash keys are domains specified in the $possdomains array ref,
13012: next inner hash keys are privileged roles specified in the $roles array ref,
13013: and the innermost hash contains key = value pairs for username:domain = end:start
13014: for active or future "privileged" users with that role in that domain. To avoid
13015: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
13016: innerhash are cached using priv_$role and $dom as the identifiers.
1.1195 raeburn 13017:
1.243 albertel 13018: =back
13019:
13020: =head2 User Modification
13021:
13022: =over 4
13023:
13024: =item *
13025:
1.957 raeburn 13026: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 13027: user for the level given by URL. Optional start and end dates (leave empty
13028: string or zero for "no date")
1.191 harris41 13029:
13030: =item *
13031:
1.243 albertel 13032: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
13033: change a users, password, possible return values are: ok,
13034: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
13035: refused
1.191 harris41 13036:
13037: =item *
13038:
1.243 albertel 13039: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 13040:
13041: =item *
13042:
1.1058 raeburn 13043: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
13044: $forceid,$desiredhome,$email,$inststatus,$candelete) :
13045:
13046: will update user information (firstname,middlename,lastname,generation,
13047: permanentemail), and if forceid is true, student/employee ID also.
13048: A user's institutional affiliation(s) can also be updated.
13049: User information fields will not be overwritten with empty entries
13050: unless the field is included in the $candelete array reference.
13051: This array is included when a single user is modified via "Manage Users",
13052: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 13053:
13054: =item *
13055:
1.286 matthew 13056: modifystudent
13057:
1.957 raeburn 13058: modify a student's enrollment and identification information.
1.1235 raeburn 13059: The course id is resolved based on the current user's environment.
13060: This means the invoking user must be a course coordinator or otherwise
1.286 matthew 13061: associated with a course.
13062:
1.297 matthew 13063: This call is essentially a wrapper for lonnet::modifyuser and
13064: lonnet::modify_student_enrollment
1.286 matthew 13065:
13066: Inputs:
13067:
13068: =over 4
13069:
1.957 raeburn 13070: =item B<$udom> Student's loncapa domain
1.286 matthew 13071:
1.957 raeburn 13072: =item B<$uname> Student's loncapa login name
1.286 matthew 13073:
1.964 bisitz 13074: =item B<$uid> Student/Employee ID
1.286 matthew 13075:
1.957 raeburn 13076: =item B<$umode> Student's authentication mode
1.286 matthew 13077:
1.957 raeburn 13078: =item B<$upass> Student's password
1.286 matthew 13079:
1.957 raeburn 13080: =item B<$first> Student's first name
1.286 matthew 13081:
1.957 raeburn 13082: =item B<$middle> Student's middle name
1.286 matthew 13083:
1.957 raeburn 13084: =item B<$last> Student's last name
1.286 matthew 13085:
1.957 raeburn 13086: =item B<$gene> Student's generation
1.286 matthew 13087:
1.957 raeburn 13088: =item B<$usec> Student's section in course
1.286 matthew 13089:
13090: =item B<$end> Unix time of the roles expiration
13091:
13092: =item B<$start> Unix time of the roles start date
13093:
13094: =item B<$forceid> If defined, allow $uid to be changed
13095:
13096: =item B<$desiredhome> server to use as home server for student
13097:
1.957 raeburn 13098: =item B<$email> Student's permanent e-mail address
13099:
13100: =item B<$type> Type of enrollment (auto or manual)
13101:
1.963 raeburn 13102: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
13103:
13104: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 13105:
1.963 raeburn 13106: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 13107:
1.963 raeburn 13108: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 13109:
1.1216 raeburn 13110: =item B<$inststatus> institutional status of user - : separated string of escaped status types
13111:
13112: =item B<$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.
1.957 raeburn 13113:
1.286 matthew 13114: =back
1.297 matthew 13115:
13116: =item *
13117:
13118: modify_student_enrollment
13119:
1.1235 raeburn 13120: Change a student's enrollment status in a class. The environment variable
1.297 matthew 13121: 'role.request.course' must be defined for this function to proceed.
13122:
13123: Inputs:
13124:
13125: =over 4
13126:
1.1235 raeburn 13127: =item $udom, student's domain
1.297 matthew 13128:
1.1235 raeburn 13129: =item $uname, student's name
1.297 matthew 13130:
1.1235 raeburn 13131: =item $uid, student's user id
1.297 matthew 13132:
1.1235 raeburn 13133: =item $first, student's first name
1.297 matthew 13134:
13135: =item $middle
13136:
13137: =item $last
13138:
13139: =item $gene
13140:
13141: =item $usec
13142:
13143: =item $end
13144:
13145: =item $start
13146:
1.957 raeburn 13147: =item $type
13148:
13149: =item $locktype
13150:
13151: =item $cid
13152:
13153: =item $selfenroll
13154:
13155: =item $context
13156:
1.1216 raeburn 13157: =item $credits, number of credits student will earn from this class
13158:
1.297 matthew 13159: =back
13160:
1.191 harris41 13161:
13162: =item *
13163:
1.243 albertel 13164: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
13165: custom role; give a custom role to a user for the level given by URL. Specify
13166: name and domain of role author, and role name
1.191 harris41 13167:
13168: =item *
13169:
1.243 albertel 13170: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 13171:
13172: =item *
13173:
1.243 albertel 13174: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
13175:
13176: =back
13177:
13178: =head2 Course Infomation
13179:
13180: =over 4
1.191 harris41 13181:
13182: =item *
13183:
1.1118 foxr 13184: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 13185: specified course id, including all environment settings for the
13186: course, the description of the course will be in the hash under the
13187: key 'description'
1.191 harris41 13188:
1.1118 foxr 13189: $options is an optional parameter that if supplied is a hash reference that controls
13190: what how this function works. It has the following key/values:
13191:
13192: =over 4
13193:
13194: =item freshen_cache
13195:
13196: If defined, and the environment cache for the course is valid, it is
13197: returned in the returned hash.
13198:
13199: =item one_time
13200:
13201: If defined, the last cache time is set to _now_
13202:
13203: =item user
13204:
13205: If defined, the supplied username is used instead of the current user.
13206:
13207:
13208: =back
13209:
1.191 harris41 13210: =item *
13211:
1.624 albertel 13212: resdata($name,$domain,$type,@which) : request for current parameter
13213: setting for a specific $type, where $type is either 'course' or 'user',
13214: @what should be a list of parameters to ask about. This routine caches
1.1235 raeburn 13215: answers for 10 minutes.
1.243 albertel 13216:
1.877 foxr 13217: =item *
13218:
13219: get_courseresdata($courseid, $domain) : dump the entire course resource
13220: data base, returning a hash that is keyed by the resource name and has
13221: values that are the resource value. I believe that the timestamps and
13222: versions are also returned.
13223:
1.1236 raeburn 13224: get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
13225: supplemental content area. This routine caches the number of files for
13226: 10 minutes.
13227:
1.243 albertel 13228: =back
13229:
13230: =head2 Course Modification
13231:
13232: =over 4
1.191 harris41 13233:
13234: =item *
13235:
1.243 albertel 13236: writecoursepref($courseid,%prefs) : write preferences (environment
13237: database) for a course
1.191 harris41 13238:
13239: =item *
13240:
1.1011 raeburn 13241: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
13242:
13243: =item *
13244:
1.1038 raeburn 13245: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 13246:
1.1167 droeschl 13247: =item *
13248:
13249: is_course($courseid), is_course($cdom, $cnum)
13250:
13251: Accepts either a combined $courseid (in the form of domain_courseid) or the
13252: two component version $cdom, $cnum. It checks if the specified course exists.
13253:
13254: Returns:
13255: undef if the course doesn't exist, otherwise
13256: in scalar context the combined courseid.
13257: in list context the two components of the course identifier, domain and
13258: courseid.
13259:
1.243 albertel 13260: =back
13261:
13262: =head2 Resource Subroutines
13263:
13264: =over 4
1.191 harris41 13265:
13266: =item *
13267:
1.243 albertel 13268: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 13269:
13270: =item *
13271:
1.243 albertel 13272: repcopy($filename) : subscribes to the requested file, and attempts to
13273: replicate from the owning library server, Might return
1.607 raeburn 13274: 'unavailable', 'not_found', 'forbidden', 'ok', or
13275: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 13276: resource. Expects the local filesystem pathname
13277: (/home/httpd/html/res/....)
13278:
13279: =back
13280:
13281: =head2 Resource Information
13282:
13283: =over 4
1.191 harris41 13284:
13285: =item *
13286:
1.1228 raeburn 13287: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
13288: and returns the value of a variety of different possible values,
13289: $varname should be a request string, and the other parameters can be
13290: used to specify who and what one is asking about. Ordinarily, $cid
13291: does not need to be specified, as it is retrived from
13292: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
13293: within lonuserstate::loadmap() when initializing a course, before
13294: $env{'request.course.id'} has been set, so it needs to be provided
13295: in that one case.
1.243 albertel 13296:
13297: Possible values for $varname are environment.lastname (or other item
13298: from the envirnment hash), user.name (or someother aspect about the
13299: user), resource.0.maxtries (or some other part and parameter of a
13300: resource)
1.204 albertel 13301:
13302: =item *
13303:
1.243 albertel 13304: directcondval($number) : get current value of a condition; reads from a state
13305: string
1.204 albertel 13306:
13307: =item *
13308:
1.243 albertel 13309: condval($condidx) : value of condition index based on state
1.204 albertel 13310:
13311: =item *
13312:
1.243 albertel 13313: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
13314: resource's metadata, $what should be either a specific key, or either
13315: 'keys' (to get a list of possible keys) or 'packages' to get a list of
13316: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
13317:
13318: this function automatically caches all requests
1.191 harris41 13319:
13320: =item *
13321:
1.243 albertel 13322: metadata_query($query,$custom,$customshow) : make a metadata query against the
13323: network of library servers; returns file handle of where SQL and regex results
13324: will be stored for query
1.191 harris41 13325:
13326: =item *
13327:
1.243 albertel 13328: symbread($filename) : return symbolic list entry (filename argument optional);
13329: returns the data handle
1.191 harris41 13330:
13331: =item *
13332:
1.1190 raeburn 13333: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
13334: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 13335: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1190 raeburn 13336: on failure, user must be in a course, as it assumes the existence of
13337: the course initial hash, and uses $env('request.course.id'}. The third
13338: arg is an optional reference to a scalar. If this arg is passed in the
13339: call to symbverify, it will be set to 1 if the symb has been set to be
13340: encrypted; otherwise it will be null.
1.191 harris41 13341:
13342: =item *
13343:
1.243 albertel 13344: symbclean($symb) : removes versions numbers from a symb, returns the
13345: cleaned symb
1.191 harris41 13346:
13347: =item *
13348:
1.243 albertel 13349: is_on_map($uri) : checks if the $uri is somewhere on the current
13350: course map, user must be in a course for it to work.
1.191 harris41 13351:
13352: =item *
13353:
1.243 albertel 13354: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 13355:
13356: =item *
13357:
1.243 albertel 13358: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
13359: a random seed, all arguments are optional, if they aren't sent it uses the
13360: environment to derive them. Note: if symb isn't sent and it can't get one
13361: from &symbread it will use the current time as its return value
1.191 harris41 13362:
13363: =item *
13364:
1.243 albertel 13365: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
13366: unfakeable, receipt
1.191 harris41 13367:
13368: =item *
13369:
1.620 albertel 13370: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 13371:
13372: =item *
13373:
1.243 albertel 13374: countacc($url) : count the number of accesses to a given URL
1.191 harris41 13375:
13376: =item *
13377:
1.243 albertel 13378: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 13379:
13380: =item *
13381:
1.243 albertel 13382: checkin($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 $tcrsid)
1.191 harris41 13383:
13384: =item *
13385:
1.243 albertel 13386: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 13387:
13388: =item *
13389:
1.243 albertel 13390: devalidate($symb) : devalidate temporary spreadsheet calculations,
13391: forcing spreadsheet to reevaluate the resource scores next time.
13392:
1.1195 raeburn 13393: =item *
13394:
1.1196 raeburn 13395: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
13396: when viewing in course context.
1.1195 raeburn 13397:
1.1196 raeburn 13398: input: six args -- filename (decluttered), course number, course domain,
13399: url, symb (if registered) and group (if this is a
13400: group item -- e.g., bulletin board, group page etc.).
1.1195 raeburn 13401:
1.1196 raeburn 13402: output: array of five scalars --
1.1195 raeburn 13403: $cfile -- url for file editing if editable on current server
13404: $home -- homeserver of resource (i.e., for author if published,
13405: or course if uploaded.).
13406: $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 13407: $forceedit -- 1 if icon/link should be to go to edit mode
13408: $forceview -- 1 if icon/link should be to go to view mode
1.1195 raeburn 13409:
13410: =item *
13411:
13412: is_course_upload($file,$cnum,$cdom)
13413:
13414: Used in course context to determine if current file was uploaded to
13415: the course (i.e., would be found in /userfiles/docs on the course's
13416: homeserver.
13417:
13418: input: 3 args -- filename (decluttered), course number and course domain.
13419: output: boolean -- 1 if file was uploaded.
13420:
1.243 albertel 13421: =back
13422:
13423: =head2 Storing/Retreiving Data
13424:
13425: =over 4
1.191 harris41 13426:
13427: =item *
13428:
1.1269 raeburn 13429: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
13430: permanently for this url; hashref needs to be given and should be a \%hashname;
13431: the remaining args aren't required and if they aren't passed or are '' they will
13432: be derived from the env (with the exception of $laststore, which is an
13433: optional arg used when a user's submission is stored in grading).
13434: $laststore is $version=$timestamp, where $version is the most recent version
13435: number retrieved for the corresponding $symb in the $namespace db file, and
13436: $timestamp is the timestamp for that transaction (UNIX time).
13437: $laststore is currently only passed when cstore() is called by
13438: structuretags::finalize_storage().
1.191 harris41 13439:
13440: =item *
13441:
1.1269 raeburn 13442: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
13443: but uses critical subroutine
1.191 harris41 13444:
13445: =item *
13446:
1.243 albertel 13447: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
13448: all args are optional
1.191 harris41 13449:
13450: =item *
13451:
1.717 albertel 13452: dumpstore($namespace,$udom,$uname,$regexp,$range) :
13453: dumps the complete (or key matching regexp) namespace into a hash
13454: ($udom, $uname, $regexp, $range are optional) for a namespace that is
13455: normally &store()ed into
13456:
13457: $range should be either an integer '100' (give me the first 100
13458: matching records)
13459: or be two integers sperated by a - with no spaces
13460: '30-50' (give me the 30th through the 50th matching
13461: records)
13462:
13463:
13464: =item *
13465:
1.1269 raeburn 13466: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
1.717 albertel 13467: replaces a &store() version of data with a replacement set of data
13468: for a particular resource in a namespace passed in the $storehash hash
1.1269 raeburn 13469: reference. If $tolog is true, the transaction is logged in the courselog
13470: with an action=PUTSTORE.
1.717 albertel 13471:
13472: =item *
13473:
1.243 albertel 13474: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
13475: works very similar to store/cstore, but all data is stored in a
13476: temporary location and can be reset using tmpreset, $storehash should
13477: be a hash reference, returns nothing on success
1.191 harris41 13478:
13479: =item *
13480:
1.243 albertel 13481: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
13482: similar to restore, but all data is stored in a temporary location and
13483: can be reset using tmpreset. Returns a hash of values on success,
13484: error string otherwise.
1.191 harris41 13485:
13486: =item *
13487:
1.243 albertel 13488: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
13489: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 13490:
13491: =item *
13492:
1.243 albertel 13493: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
13494: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 13495:
13496: =item *
13497:
1.243 albertel 13498: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
13499: namesp ($udom and $uname are optional)
1.191 harris41 13500:
13501: =item *
13502:
1.702 albertel 13503: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 13504: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 13505: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 13506:
1.702 albertel 13507: $range should be either an integer '100' (give me the first 100
13508: matching records)
13509: or be two integers sperated by a - with no spaces
13510: '30-50' (give me the 30th through the 50th matching
13511: records)
1.449 matthew 13512: =item *
13513:
13514: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
13515: $store can be a scalar, an array reference, or if the amount to be
13516: incremented is > 1, a hash reference.
13517:
13518: ($udom and $uname are optional)
1.191 harris41 13519:
13520: =item *
13521:
1.243 albertel 13522: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
13523: ($udom and $uname are optional)
1.191 harris41 13524:
13525: =item *
13526:
1.243 albertel 13527: cput($namespace,$storehash,$udom,$uname) : critical put
13528: ($udom and $uname are optional)
1.191 harris41 13529:
13530: =item *
13531:
1.748 albertel 13532: newput($namespace,$storehash,$udom,$uname) :
13533:
13534: Attempts to store the items in the $storehash, but only if they don't
13535: currently exist, if this succeeds you can be certain that you have
13536: successfully created a new key value pair in the $namespace db.
13537:
13538:
13539: Args:
13540: $namespace: name of database to store values to
13541: $storehash: hashref to store to the db
13542: $udom: (optional) domain of user containing the db
13543: $uname: (optional) name of user caontaining the db
13544:
13545: Returns:
13546: 'ok' -> succeeded in storing all keys of $storehash
13547: 'key_exists: <key>' -> failed to anything out of $storehash, as at
13548: least <key> already existed in the db (other
13549: requested keys may also already exist)
1.967 bisitz 13550: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 13551: 'con_lost' -> unable to contact request server
13552: 'refused' -> action was not allowed by remote machine
13553:
13554:
13555: =item *
13556:
1.243 albertel 13557: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
13558: reference filled in from namesp (encrypts the return communication)
13559: ($udom and $uname are optional)
1.191 harris41 13560:
13561: =item *
13562:
1.243 albertel 13563: log($udom,$name,$home,$message) : write to permanent log for user; use
13564: critical subroutine
13565:
1.806 raeburn 13566: =item *
13567:
1.860 raeburn 13568: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
13569: array reference filled in from namespace found in domain level on either
13570: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 13571:
13572: =item *
13573:
1.860 raeburn 13574: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
13575: domain level either on specified domain server ($uhome) or primary domain
13576: server ($udom and $uhome are optional)
1.806 raeburn 13577:
1.943 raeburn 13578: =item *
13579:
1.1240 raeburn 13580: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
13581: for: authentication, language, quotas, timezone, date locale, and portal URL in
13582: the target domain.
13583:
13584: May also include additional key => value pairs for the following groups:
13585:
13586: =over
13587:
13588: =item
13589: disk quotas (MB allocated by default to portfolios and authoring spaces).
13590:
13591: =over
13592:
13593: =item defaultquota, authorquota
13594:
13595: =back
13596:
13597: =item
13598: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
13599: portfolio for users).
13600:
13601: =over
13602:
13603: =item
13604: aboutme, blog, webdav, portfolio
13605:
13606: =back
13607:
13608: =item
13609: requestcourses: ability to request courses, and how requests are processed.
13610:
13611: =over
13612:
13613: =item
1.1246 raeburn 13614: official, unofficial, community, textbook
1.1240 raeburn 13615:
13616: =back
13617:
13618: =item
13619: inststatus: types of institutional affiliation, and order in which they are displayed.
13620:
13621: =over
13622:
13623: =item
1.1256 raeburn 13624: inststatustypes, inststatusorder, inststatusguest
1.1240 raeburn 13625:
13626: =back
13627:
13628: =item
13629: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
13630: for course's uploaded content.
13631:
13632: =over
13633:
13634: =item
1.1246 raeburn 13635: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
13636: communityquota, textbookquota
1.1240 raeburn 13637:
13638: =back
13639:
13640: =item
13641: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
13642: on your servers.
13643:
13644: =over
13645:
13646: =item
13647: remotesessions, hostedsessions
13648:
13649: =back
13650:
13651: =back
13652:
13653: In cases where a domain coordinator has never used the "Set Domain Configuration"
13654: utility to create a configuration.db file on a domain's primary library server
13655: only the following domain defaults: auth_def, auth_arg_def, lang_def
13656: -- corresponding values are authentication type (internal, krb4, krb5,
13657: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
13658: will be available. Values are retrieved from cache (if current), unless the
13659: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
13660: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
13661:
13662: Typical usage:
1.943 raeburn 13663:
1.1240 raeburn 13664: %domdefaults = &get_domain_defaults($target_domain);
1.943 raeburn 13665:
1.243 albertel 13666: =back
13667:
13668: =head2 Network Status Functions
13669:
13670: =over 4
1.191 harris41 13671:
13672: =item *
13673:
1.1137 raeburn 13674: dirlist() : return directory list based on URI (first arg).
13675:
13676: Inputs: 1 required, 5 optional.
13677:
13678: =over
13679:
13680: =item
13681: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
13682:
13683: =item
13684: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
13685:
13686: =item
13687: $username - username of user/course to be listed. Extracted from $uri if absent.
13688:
13689: =item
13690: $getpropath - boolean: 1 if prepend path using &propath().
13691:
13692: =item
13693: $getuserdir - boolean: 1 if prepend path for "userfiles".
13694:
13695: =item
13696: $alternateRoot - path to prepend in place of path from $uri.
13697:
13698: =back
13699:
13700: Returns: Array of up to two items.
13701:
13702: =over
13703:
13704: a reference to an array of files/subdirectories
13705:
13706: =over
13707:
13708: Each element in the array of files/subdirectories is a & separated list of
13709: item name and the result of running stat on the item. If dirlist was requested
13710: for a file instead of a directory, the item name will be ''. For a directory
13711: listing, if the item is a metadata file, the element will end &N&M
13712: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
13713: default copyright set (1).
13714:
13715: =back
13716:
13717: a scalar containing error condition (if encountered).
13718:
13719: =over
13720:
13721: =item
13722: no_host (no homeserver identified for $username:$domain).
13723:
13724: =item
13725: no_such_host (server contacted for listing not identified as valid host).
13726:
13727: =item
13728: con_lost (connection to remote server failed).
13729:
13730: =item
13731: refused (invalid $username:$domain received on lond side).
13732:
13733: =item
13734: no_such_dir (directory at specified path on lond side does not exist).
13735:
13736: =item
13737: empty (directory at specified path on lond side is empty).
13738:
13739: =over
13740:
13741: This is currently not encountered because the &ls3, &ls2,
13742: &ls (_handler) routines on the lond side do not filter out
13743: . and .. from a directory listing.
13744:
13745: =back
13746:
13747: =back
13748:
13749: =back
1.191 harris41 13750:
13751: =item *
13752:
1.243 albertel 13753: spareserver() : find server with least workload from spare.tab
13754:
1.986 foxr 13755:
13756: =item *
13757:
13758: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
13759: if there is no corresponding loncapa host.
13760:
1.243 albertel 13761: =back
13762:
1.986 foxr 13763:
1.243 albertel 13764: =head2 Apache Request
13765:
13766: =over 4
1.191 harris41 13767:
13768: =item *
13769:
1.243 albertel 13770: ssi($url,%hash) : server side include, does a complete request cycle on url to
13771: localhost, posts hash
13772:
13773: =back
13774:
13775: =head2 Data to String to Data
13776:
13777: =over 4
1.191 harris41 13778:
13779: =item *
13780:
1.243 albertel 13781: hash2str(%hash) : convert a hash into a string complete with escaping and '='
13782: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 13783:
13784: =item *
13785:
1.243 albertel 13786: hashref2str($hashref) : convert a hashref into a string complete with
13787: escaping and '=' and '&' separators, supports elements that are
13788: arrayrefs and hashrefs
1.191 harris41 13789:
13790: =item *
13791:
1.243 albertel 13792: arrayref2str($arrayref) : convert an arrayref into a string complete
13793: with escaping and '&' separators, supports elements that are arrayrefs
13794: and hashrefs
1.191 harris41 13795:
13796: =item *
13797:
1.243 albertel 13798: str2hash($string) : convert string to hash using unescaping and
13799: splitting on '=' and '&', supports elements that are arrayrefs and
13800: hashrefs
1.191 harris41 13801:
13802: =item *
13803:
1.243 albertel 13804: str2array($string) : convert string to hash using unescaping and
13805: splitting on '&', supports elements that are arrayrefs and hashrefs
13806:
13807: =back
13808:
13809: =head2 Logging Routines
13810:
13811:
13812: These routines allow one to make log messages in the lonnet.log and
13813: lonnet.perm logfiles.
1.191 harris41 13814:
1.1119 foxr 13815: =over 4
13816:
1.191 harris41 13817: =item *
13818:
1.243 albertel 13819: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 13820:
13821: =item *
13822:
1.243 albertel 13823: logthis() : append message to the normal lonnet.log file, it gets
13824: preiodically rolled over and deleted.
1.191 harris41 13825:
13826: =item *
13827:
1.243 albertel 13828: logperm() : append a permanent message to lonnet.perm.log, this log
13829: file never gets deleted by any automated portion of the system, only
13830: messages of critical importance should go in here.
13831:
1.1119 foxr 13832:
1.243 albertel 13833: =back
13834:
13835: =head2 General File Helper Routines
13836:
13837: =over 4
1.191 harris41 13838:
13839: =item *
13840:
1.481 raeburn 13841: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
13842: (a) files in /uploaded
13843: (i) If a local copy of the file exists -
13844: compares modification date of local copy with last-modified date for
13845: definitive version stored on home server for course. If local copy is
13846: stale, requests a new version from the home server and stores it.
13847: If the original has been removed from the home server, then local copy
13848: is unlinked.
13849: (ii) If local copy does not exist -
13850: requests the file from the home server and stores it.
13851:
13852: If $caller is 'uploadrep':
13853: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
13854: for request for files originally uploaded via DOCS.
13855: - returns 'ok' if fresh local copy now available, -1 otherwise.
13856:
13857: Otherwise:
13858: This indicates a call from the content generation phase of the request.
13859: - returns the entire contents of the file or -1.
13860:
13861: (b) files in /res
13862: - returns the entire contents of a file or -1;
13863: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 13864:
1.712 albertel 13865:
13866: =item *
13867:
13868: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
13869: reference
13870:
13871: returns either a stat() list of data about the file or an empty list
13872: if the file doesn't exist or couldn't find out about it (connection
13873: problems or user unknown)
13874:
1.191 harris41 13875: =item *
13876:
1.243 albertel 13877: filelocation($dir,$file) : returns file system location of a file
13878: based on URI; meant to be "fairly clean" absolute reference, $dir is a
13879: directory that relative $file lookups are to looked in ($dir of /a/dir
13880: and a file of ../bob will become /a/bob)
1.191 harris41 13881:
13882: =item *
13883:
13884: hreflocation($dir,$file) : returns file system location or a URL; same as
13885: filelocation except for hrefs
13886:
13887: =item *
13888:
1.1261 raeburn 13889: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
13890: also removes beginning /home/httpd/html unless /priv/ follows it.
1.191 harris41 13891:
1.243 albertel 13892: =back
13893:
1.608 albertel 13894: =head2 Usererfile file routines (/uploaded*)
13895:
13896: =over 4
13897:
13898: =item *
13899:
13900: userfileupload(): main rotine for putting a file in a user or course's
13901: filespace, arguments are,
13902:
1.620 albertel 13903: formname - required - this is the name of the element in $env where the
1.608 albertel 13904: filename, and the contents of the file to create/modifed exist
1.620 albertel 13905: the filename is in $env{'form.'.$formname.'.filename'} and the
13906: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 13907: context - if coursedoc, store the file in the course of the active role
13908: of the current user;
13909: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
13910: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 13911: subdir - required - subdirectory to put the file in under ../userfiles/
13912: if undefined, it will be placed in "unknown"
13913:
13914: (This routine calls clean_filename() to remove any dangerous
13915: characters from the filename, and then calls finuserfileupload() to
13916: complete the transaction)
13917:
13918: returns either the url of the uploaded file (/uploaded/....) if successful
13919: and /adm/notfound.html if unsuccessful
13920:
13921: =item *
13922:
13923: clean_filename(): routine for cleaing a filename up for storage in
13924: userfile space, argument is:
13925:
13926: filename - proposed filename
13927:
13928: returns: the new clean filename
13929:
13930: =item *
13931:
1.1090 raeburn 13932: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 13933: userspace, probably shouldn't be called directly
13934:
13935: docuname: username or courseid of destination for the file
13936: docudom: domain of user/course of destination for the file
13937: formname: same as for userfileupload()
1.1090 raeburn 13938: fname: filename (including subdirectories) for the file
13939: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
13940: allfiles: reference to hash used to store objects found by parser
13941: codebase: reference to hash used for codebases of java objects found by parser
13942: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
13943: thumbheight: height (pixels) of thumbnail to be created for uploaded image
13944: resizewidth: width to be used to resize image using resizeImage from ImageMagick
13945: resizeheight: height to be used to resize image using resizeImage from ImageMagick
13946: context: if 'overwrite', will move the uploaded file from its temporary location to
13947: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 13948: mimetype: reference to scalar to accommodate mime type determined
13949: from File::MMagic if $parser = parse.
1.608 albertel 13950:
13951: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 13952: and /adm/notfound.html if unsuccessful (or an error message if context
13953: was 'overwrite').
13954:
1.608 albertel 13955:
13956: =item *
13957:
13958: renameuserfile(): renames an existing userfile to a new name
13959:
13960: Args:
13961: docuname: username or courseid of destination for the file
13962: docudom: domain of user/course of destination for the file
13963: old: current file name (including any subdirs under userfiles)
13964: new: desired file name (including any subdirs under userfiles)
13965:
13966: =item *
13967:
13968: mkdiruserfile(): creates a directory is a userfiles dir
13969:
13970: Args:
13971: docuname: username or courseid of destination for the file
13972: docudom: domain of user/course of destination for the file
13973: dir: dir to create (including any subdirs under userfiles)
13974:
13975: =item *
13976:
13977: removeuserfile(): removes a file that exists in userfiles
13978:
13979: Args:
13980: docuname: username or courseid of destination for the file
13981: docudom: domain of user/course of destination for the file
13982: fname: filname to delete (including any subdirs under userfiles)
13983:
13984: =item *
13985:
13986: removeuploadedurl(): convience function for removeuserfile()
13987:
13988: Args:
13989: url: a full /uploaded/... url to delete
13990:
1.747 albertel 13991: =item *
13992:
13993: get_portfile_permissions():
13994: Args:
13995: domain: domain of user or course contain the portfolio files
13996: user: name of user or num of course contain the portfolio files
13997: Returns:
13998: hashref of a dump of the proper file_permissions.db
13999:
14000:
14001: =item *
14002:
14003: get_access_controls():
14004:
14005: Args:
14006: current_permissions: the hash ref returned from get_portfile_permissions()
14007: group: (optional) the group you want the files associated with
14008: file: (optional) the file you want access info on
14009:
14010: Returns:
1.749 raeburn 14011: a hash (keys are file names) of hashes containing
14012: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
14013: values are XML containing access control settings (see below)
1.747 albertel 14014:
14015: Internal notes:
14016:
1.749 raeburn 14017: access controls are stored in file_permissions.db as key=value pairs.
14018: key -> path to file/file_name\0uniqueID:scope_end_start
14019: where scope -> public,guest,course,group,domains or users.
14020: end -> UNIX time for end of access (0 -> no end date)
14021: start -> UNIX time for start of access
14022:
14023: value -> XML description of access control
14024: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
14025: <start></start>
14026: <end></end>
14027:
14028: <password></password> for scope type = guest
14029:
14030: <domain></domain> for scope type = course or group
14031: <number></number>
14032: <roles id="">
14033: <role></role>
14034: <access></access>
14035: <section></section>
14036: <group></group>
14037: </roles>
14038:
14039: <dom></dom> for scope type = domains
14040:
14041: <users> for scope type = users
14042: <user>
14043: <uname></uname>
14044: <udom></udom>
14045: </user>
14046: </users>
14047: </scope>
14048:
14049: Access data is also aggregated for each file in an additional key=value pair:
14050: key -> path to file/file_name\0accesscontrol
14051: value -> reference to hash
14052: hash contains key = value pairs
14053: where key = uniqueID:scope_end_start
14054: value = UNIX time record was last updated
14055:
14056: Used to improve speed of look-ups of access controls for each file.
14057:
14058: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
14059:
1.1198 raeburn 14060: =item *
14061:
1.749 raeburn 14062: modify_access_controls():
14063:
14064: Modifies access controls for a portfolio file
14065: Args
14066: 1. file name
14067: 2. reference to hash of required changes,
14068: 3. domain
14069: 4. username
14070: where domain,username are the domain of the portfolio owner
14071: (either a user or a course)
14072:
14073: Returns:
14074: 1. result of additions or updates ('ok' or 'error', with error message).
14075: 2. result of deletions ('ok' or 'error', with error message).
14076: 3. reference to hash of any new or updated access controls.
14077: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
14078: key = integer (inbound ID)
1.1198 raeburn 14079: value = uniqueID
14080:
14081: =item *
14082:
14083: get_timebased_id():
14084:
14085: Attempts to get a unique timestamp-based suffix for use with items added to a
14086: course via the Course Editor (e.g., folders, composite pages,
14087: group bulletin boards).
14088:
14089: Args: (first three required; six others optional)
14090:
14091: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
14092: docssequence, or name of group
14093:
14094: 2. keyid (alphanumeric): name of temporary locking key in hash,
14095: e.g., num, boardids
14096:
14097: 3. namespace: name of gdbm file used to store suffixes already assigned;
14098: file will be named nohist_namespace.db
14099:
14100: 4. cdom: domain of course; default is current course domain from %env
14101:
14102: 5. cnum: course number; default is current course number from %env
14103:
14104: 6. idtype: set to concat if an additional digit is to be appended to the
14105: unix timestamp to form the suffix, if the plain timestamp is already
14106: in use. Default is to not do this, but simply increment the unix
14107: timestamp by 1 until a unique key is obtained.
14108:
14109: 7. who: holder of locking key; defaults to user:domain for user.
14110:
14111: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
14112: retrying); default is 3.
14113:
14114: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
14115:
14116: Returns:
14117:
14118: 1. suffix obtained (numeric)
14119:
14120: 2. result of deleting locking key (ok if deleted, or lock never obtained)
14121:
14122: 3. error: contains (localized) error message if an error occurred.
14123:
1.747 albertel 14124:
1.608 albertel 14125: =back
14126:
1.243 albertel 14127: =head2 HTTP Helper Routines
14128:
14129: =over 4
14130:
1.191 harris41 14131: =item *
14132:
14133: escape() : unpack non-word characters into CGI-compatible hex codes
14134:
14135: =item *
14136:
14137: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
14138:
1.243 albertel 14139: =back
14140:
14141: =head1 PRIVATE SUBROUTINES
14142:
14143: =head2 Underlying communication routines (Shouldn't call)
14144:
14145: =over 4
14146:
14147: =item *
14148:
14149: subreply() : tries to pass a message to lonc, returns con_lost if incapable
14150:
14151: =item *
14152:
14153: reply() : uses subreply to send a message to remote machine, logs all failures
14154:
14155: =item *
14156:
14157: critical() : passes a critical message to another server; if cannot
14158: get through then place message in connection buffer directory and
14159: returns con_delayed, if incapable of saving message, returns
14160: con_failed
14161:
14162: =item *
14163:
14164: reconlonc() : tries to reconnect lonc client processes.
14165:
14166: =back
14167:
14168: =head2 Resource Access Logging
14169:
14170: =over 4
14171:
14172: =item *
14173:
14174: flushcourselogs() : flush (save) buffer logs and access logs
14175:
14176: =item *
14177:
14178: courselog($what) : save message for course in hash
14179:
14180: =item *
14181:
14182: courseacclog($what) : save message for course using &courselog(). Perform
14183: special processing for specific resource types (problems, exams, quizzes, etc).
14184:
1.191 harris41 14185: =item *
14186:
14187: goodbye() : flush course logs and log shutting down; it is called in srm.conf
14188: as a PerlChildExitHandler
1.243 albertel 14189:
14190: =back
14191:
14192: =head2 Other
14193:
14194: =over 4
14195:
14196: =item *
14197:
14198: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 14199:
14200: =back
14201:
14202: =cut
1.877 foxr 14203:
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