Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1367
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1367 ! raeburn 4: # $Id: lonnet.pm,v 1.1366 2018/01/03 04:21:02 raeburn 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;
1.486 www 74: use HTTP::Date;
1.977 amueller 75: use Image::Magick;
76:
1.1182 foxr 77:
1.1173 foxr 78: use Encode;
79:
1.1245 raeburn 80: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 81: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
82: %managerstab);
1.871 albertel 83:
84: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
85: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
86: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 87: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 88:
1.1 albertel 89: use IO::Socket;
1.31 www 90: use GDBM_File;
1.208 albertel 91: use HTML::LCParser;
1.88 www 92: use Fcntl qw(:flock);
1.870 albertel 93: use Storable qw(thaw nfreeze);
1.1289 damieng 94: use Time::HiRes qw( sleep gettimeofday tv_interval );
1.599 albertel 95: use Cache::Memcached;
1.676 albertel 96: use Digest::MD5;
1.790 albertel 97: use Math::Random;
1.1024 raeburn 98: use File::MMagic;
1.807 albertel 99: use LONCAPA qw(:DEFAULT :match);
1.740 www 100: use LONCAPA::Configuration;
1.1160 www 101: use LONCAPA::lonmetadata;
1.1167 droeschl 102: use LONCAPA::Lond;
1.1345 raeburn 103: use LONCAPA::LWPReq;
1.1117 foxr 104:
1.1090 raeburn 105: use File::Copy;
1.676 albertel 106:
1.195 www 107: my $readit;
1.1288 damieng 108: my $max_connection_retries = 20; # 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'.$$.'00000'.$logid;
1.1184 raeburn 130: my $logentry = {
131: $id => {
132: 'exe_uname' => $env{'user.name'},
133: 'exe_udom' => $env{'user.domain'},
134: 'exe_time' => $now,
135: 'exe_ip' => $ENV{'REMOTE_ADDR'},
136: 'delflag' => $delflag,
137: 'logentry' => $storehash,
138: 'uname' => $uname,
139: 'udom' => $udom,
140: }
141: };
142: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 143: }
144: }
1.1 albertel 145:
1.163 harris41 146: sub logtouch {
147: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 148: unless (-e "$execdir/logs/lonnet.log") {
1.1359 raeburn 149: open(my $fh,">>","$execdir/logs/lonnet.log");
1.163 harris41 150: close $fh;
151: }
152: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
153: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
154: }
155:
1.1 albertel 156: sub logthis {
157: my $message=shift;
158: my $execdir=$perlvar{'lonDaemons'};
159: my $now=time;
160: my $local=localtime($now);
1.1359 raeburn 161: if (open(my $fh,">>","$execdir/logs/lonnet.log")) {
1.986 foxr 162: my $logstring = $local. " ($$): ".$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);
1.1359 raeburn 174: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {
1.448 albertel 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:
1.1315 raeburn 232: sub get_servercerts_info {
233: my ($lonhost,$context) = @_;
234: my ($rep,$uselocal);
235: if (grep { $_ eq $lonhost } ¤t_machine_ids()) {
236: $uselocal = 1;
237: }
1.1316 raeburn 238: if (($context ne 'cgi') && ($uselocal)) {
1.1315 raeburn 239: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
1.1323 raeburn 240: if ($distro eq '') {
241: $uselocal = 0;
242: } elsif ($distro =~ /^(?:centos|redhat|scientific)(\d+)$/) {
1.1315 raeburn 243: if ($1 < 6) {
244: $uselocal = 0;
245: }
1.1346 raeburn 246: } elsif ($distro =~ /^(?:sles)(\d+)$/) {
247: if ($1 < 12) {
248: $uselocal = 0;
249: }
1.1315 raeburn 250: }
251: }
252: if ($uselocal) {
253: $rep = LONCAPA::Lond::server_certs(\%perlvar);
254: } else {
255: $rep=&reply('servercerts',$lonhost);
256: }
257: my ($result,%returnhash);
258: if (defined($lonhost)) {
259: if (!defined(&hostname($lonhost))) {
260: return;
261: }
262: }
263: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
264: ($rep eq 'unknown_cmd')) {
265: $result = $rep;
266: } else {
267: $result = 'ok';
268: my @pairs=split(/\&/,$rep);
269: foreach my $item (@pairs) {
270: my ($key,$value)=split(/=/,$item,2);
271: my $what = &unescape($key);
272: $returnhash{$what}=&thaw_unescape($value);
273: }
274: }
275: return ($result,\%returnhash);
276: }
277:
1.993 raeburn 278: sub get_server_loncaparev {
1.1073 raeburn 279: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 280: if (defined($lonhost)) {
281: if (!defined(&hostname($lonhost))) {
282: undef($lonhost);
283: }
284: }
285: if (!defined($lonhost)) {
286: if (defined(&domain($dom,'primary'))) {
287: $lonhost=&domain($dom,'primary');
288: if ($lonhost eq 'no_host') {
289: undef($lonhost);
290: }
291: }
292: }
293: if (defined($lonhost)) {
1.1073 raeburn 294: my $cachetime = 12*3600;
295: if (!$ignore_cache) {
296: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
297: if (defined($cached)) {
298: return $loncaparev;
299: }
300: }
301: my ($answer,$loncaparev);
302: my @ids=¤t_machine_ids();
303: if (grep(/^\Q$lonhost\E$/,@ids)) {
304: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 305: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 306: $loncaparev = $1;
307: }
308: } else {
309: $answer = &reply('serverloncaparev',$lonhost);
310: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
311: if ($caller eq 'loncron') {
312: my $protocol = $protocol{$lonhost};
313: $protocol = 'http' if ($protocol ne 'https');
314: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
315: my $request=new HTTP::Request('GET',$url);
1.1345 raeburn 316: my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1);
1.1073 raeburn 317: unless ($response->is_error()) {
318: my $content = $response->content;
1.1081 raeburn 319: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 320: $loncaparev = $1;
321: }
322: }
323: } else {
324: $loncaparev = $loncaparevs{$lonhost};
325: }
1.1081 raeburn 326: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 327: $loncaparev = $1;
328: }
1.993 raeburn 329: }
1.1073 raeburn 330: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 331: }
332: }
333:
1.1074 raeburn 334: sub get_server_homeID {
335: my ($hostname,$ignore_cache,$caller) = @_;
336: unless ($ignore_cache) {
337: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
338: if (defined($cached)) {
339: return $serverhomeID;
340: }
341: }
342: my $cachetime = 12*3600;
343: my $serverhomeID;
344: if ($caller eq 'loncron') {
345: my @machine_ids = &machine_ids($hostname);
346: foreach my $id (@machine_ids) {
347: my $response = &reply('serverhomeID',$id);
348: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
349: $serverhomeID = $response;
350: last;
351: }
352: }
353: if ($serverhomeID eq '') {
354: $serverhomeID = $machine_ids[-1];
355: }
356: } else {
357: $serverhomeID = $serverhomeIDs{$hostname};
358: }
359: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
360: }
361:
1.1121 raeburn 362: sub get_remote_globals {
363: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 364: my ($result,%returnhash,%whatneeded);
365: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 366: foreach my $what (sort(keys(%{$whathash}))) {
367: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 368: my ($response,$cached);
1.1121 raeburn 369: unless ($ignore_cache) {
1.1125 raeburn 370: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 371: }
372: if (defined($cached)) {
1.1125 raeburn 373: $returnhash{$what} = $response;
1.1121 raeburn 374: } else {
1.1125 raeburn 375: $whatneeded{$what} = 1;
1.1121 raeburn 376: }
377: }
1.1125 raeburn 378: if (keys(%whatneeded) == 0) {
379: $result = 'ok';
380: } else {
1.1121 raeburn 381: my $requested = &freeze_escape(\%whatneeded);
382: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 383: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
384: ($rep eq 'unknown_cmd')) {
385: $result = $rep;
386: } else {
387: $result = 'ok';
1.1121 raeburn 388: my @pairs=split(/\&/,$rep);
1.1125 raeburn 389: foreach my $item (@pairs) {
390: my ($key,$value)=split(/=/,$item,2);
391: my $what = &unescape($key);
392: my $hashid = $lonhost.'-'.$what;
393: $returnhash{$what}=&thaw_unescape($value);
394: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 395: }
396: }
397: }
398: }
1.1125 raeburn 399: return ($result,\%returnhash);
1.1121 raeburn 400: }
401:
1.1124 raeburn 402: sub remote_devalidate_cache {
1.1241 raeburn 403: my ($lonhost,$cachekeys) = @_;
404: my $items;
405: return unless (ref($cachekeys) eq 'ARRAY');
406: my $cachestr = join('&',@{$cachekeys});
407: my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
1.1124 raeburn 408: return $response;
409: }
410:
1.1 albertel 411: # -------------------------------------------------- Non-critical communication
412: sub subreply {
413: my ($cmd,$server)=@_;
1.838 albertel 414: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 415: #
416: # With loncnew process trimming, there's a timing hole between lonc server
417: # process exit and the master server picking up the listen on the AF_UNIX
418: # socket. In that time interval, a lock file will exist:
419:
420: my $lockfile=$peerfile.".lock";
421: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
1.1289 damieng 422: sleep(0.1);
1.549 foxr 423: }
424: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 425: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 426: #
1.550 foxr 427: # We'll give the connection a few tries before abandoning it. If
428: # connection is not possible, we'll con_lost back to the client.
429: #
430: my $client;
431: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
432: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
433: Type => SOCK_STREAM,
434: Timeout => 10);
1.869 albertel 435: if ($client) {
1.550 foxr 436: last; # Connected!
1.850 albertel 437: } else {
1.853 albertel 438: &create_connection(&hostname($server),$server);
1.550 foxr 439: }
1.1289 damieng 440: sleep(0.1); # Try again later if failed connection.
1.550 foxr 441: }
442: my $answer;
443: if ($client) {
1.704 albertel 444: print $client "sethost:$server:$cmd\n";
1.550 foxr 445: $answer=<$client>;
446: if (!$answer) { $answer="con_lost"; }
447: chomp($answer);
448: } else {
449: $answer = 'con_lost'; # Failed connection.
450: }
1.1 albertel 451: return $answer;
452: }
453:
454: sub reply {
455: my ($cmd,$server)=@_;
1.838 albertel 456: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 457: my $answer=subreply($cmd,$server);
1.65 www 458: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 459: &logthis("<font color=\"blue\">WARNING:".
1.12 www 460: " $cmd to $server returned $answer</font>");
461: }
1.1 albertel 462: return $answer;
463: }
464:
465: # ----------------------------------------------------------- Send USR1 to lonc
466:
467: sub reconlonc {
1.891 albertel 468: my ($lonid) = @_;
469: if ($lonid) {
1.1295 raeburn 470: my $hostname = &hostname($lonid);
1.891 albertel 471: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
472: if ($hostname && -e $peerfile) {
473: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
474: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
475: Type => SOCK_STREAM,
476: Timeout => 10);
477: if ($client) {
478: print $client ("reset_retries\n");
479: my $answer=<$client>;
480: #reset just this one.
481: }
482: }
483: return;
484: }
485:
1.836 www 486: &logthis("Trying to reconnect lonc");
1.1 albertel 487: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.1359 raeburn 488: if (open(my $fh,"<",$loncfile)) {
1.1 albertel 489: my $loncpid=<$fh>;
490: chomp($loncpid);
491: if (kill 0 => $loncpid) {
492: &logthis("lonc at pid $loncpid responding, sending USR1");
493: kill USR1 => $loncpid;
494: sleep 1;
1.1295 raeburn 495: } else {
1.12 www 496: &logthis(
1.672 albertel 497: "<font color=\"blue\">WARNING:".
1.12 www 498: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 499: }
500: } else {
1.836 www 501: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 502: }
503: }
504:
505: # ------------------------------------------------------ Critical communication
1.12 www 506:
1.1 albertel 507: sub critical {
508: my ($cmd,$server)=@_;
1.838 albertel 509: unless (&hostname($server)) {
1.672 albertel 510: &logthis("<font color=\"blue\">WARNING:".
1.89 www 511: " Critical message to unknown server ($server)</font>");
512: return 'no_such_host';
513: }
1.1 albertel 514: my $answer=reply($cmd,$server);
515: if ($answer eq 'con_lost') {
1.1295 raeburn 516: &reconlonc($server);
1.589 albertel 517: my $answer=reply($cmd,$server);
1.1 albertel 518: if ($answer eq 'con_lost') {
519: my $now=time;
520: my $middlename=$cmd;
1.5 www 521: $middlename=substr($middlename,0,16);
1.1 albertel 522: $middlename=~s/\W//g;
523: my $dfilename=
1.305 www 524: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
525: $dumpcount++;
1.1 albertel 526: {
1.448 albertel 527: my $dfh;
1.1359 raeburn 528: if (open($dfh,">",$dfilename)) {
1.448 albertel 529: print $dfh "$cmd\n";
530: close($dfh);
531: }
1.1 albertel 532: }
1.1288 damieng 533: sleep 1;
1.1 albertel 534: my $wcmd='';
535: {
1.448 albertel 536: my $dfh;
1.1359 raeburn 537: if (open($dfh,"<",$dfilename)) {
1.448 albertel 538: $wcmd=<$dfh>;
539: close($dfh);
540: }
1.1 albertel 541: }
542: chomp($wcmd);
1.7 www 543: if ($wcmd eq $cmd) {
1.672 albertel 544: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 545: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 546: &logperm("D:$server:$cmd");
547: return 'con_delayed';
548: } else {
1.672 albertel 549: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 550: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 551: &logperm("F:$server:$cmd");
552: return 'con_failed';
553: }
554: }
555: }
556: return $answer;
1.405 albertel 557: }
558:
1.755 albertel 559: # ------------------------------------------- check if return value is an error
560:
561: sub error {
562: my ($result) = @_;
1.756 albertel 563: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 564: if ($2 == 2) { return undef; }
565: return $1;
566: }
567: return undef;
568: }
569:
1.783 albertel 570: sub convert_and_load_session_env {
571: my ($lonidsdir,$handle)=@_;
572: my @profile;
573: {
1.917 albertel 574: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
575: if (!$opened) {
1.915 albertel 576: return 0;
577: }
1.783 albertel 578: flock($idf,LOCK_SH);
579: @profile=<$idf>;
580: close($idf);
581: }
582: my %temp_env;
583: foreach my $line (@profile) {
1.786 albertel 584: if ($line !~ m/=/) {
585: return 0;
586: }
1.783 albertel 587: chomp($line);
588: my ($envname,$envvalue)=split(/=/,$line,2);
589: $temp_env{&unescape($envname)} = &unescape($envvalue);
590: }
591: unlink("$lonidsdir/$handle.id");
592: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
593: 0640)) {
594: %disk_env = %temp_env;
595: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
596: untie(%disk_env);
597: }
1.786 albertel 598: return 1;
1.783 albertel 599: }
600:
1.374 www 601: # ------------------------------------------- Transfer profile into environment
1.780 albertel 602: my $env_loaded;
603: sub transfer_profile_to_env {
1.788 albertel 604: my ($lonidsdir,$handle,$force_transfer) = @_;
605: if (!$force_transfer && $env_loaded) { return; }
1.374 www 606:
1.720 albertel 607: if (!defined($lonidsdir)) {
608: $lonidsdir = $perlvar{'lonIDsDir'};
609: }
610: if (!defined($handle)) {
611: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
612: }
613:
1.786 albertel 614: my $convert;
615: {
1.917 albertel 616: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
617: if (!$opened) {
1.915 albertel 618: return;
619: }
1.786 albertel 620: flock($idf,LOCK_SH);
621: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
622: &GDBM_READER(),0640)) {
623: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
624: untie(%disk_env);
625: } else {
626: $convert = 1;
627: }
628: }
629: if ($convert) {
630: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
631: &logthis("Failed to load session, or convert session.");
632: }
1.374 www 633: }
1.783 albertel 634:
1.786 albertel 635: my %remove;
1.783 albertel 636: while ( my $envname = each(%env) ) {
1.433 matthew 637: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
638: if ($time < time-300) {
1.783 albertel 639: $remove{$key}++;
1.433 matthew 640: }
641: }
642: }
1.783 albertel 643:
1.619 albertel 644: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 645: $env_loaded=1;
1.783 albertel 646: foreach my $expired_key (keys(%remove)) {
1.433 matthew 647: &delenv($expired_key);
1.374 www 648: }
1.1 albertel 649: }
650:
1.916 albertel 651: # ---------------------------------------------------- Check for valid session
652: sub check_for_valid_session {
1.1355 raeburn 653: my ($r,$name,$userhashref,$domref) = @_;
1.916 albertel 654: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1337 raeburn 655: my ($linkname,$pubname);
1.1155 raeburn 656: if ($name eq '') {
657: $name = 'lonID';
1.1337 raeburn 658: $linkname = 'lonLinkID';
659: $pubname = 'lonPubID';
1.1155 raeburn 660: }
661: my $lonid=$cookies{$name};
1.1337 raeburn 662: if (!$lonid) {
663: if (($name eq 'lonID') && ($ENV{'SERVER_PORT'} != 443) && ($linkname)) {
664: $lonid=$cookies{$linkname};
665: }
666: if (!$lonid) {
667: if (($name eq 'lonID') && ($pubname)) {
668: $lonid=$cookies{$pubname};
669: }
670: }
671: }
1.916 albertel 672: return undef if (!$lonid);
673:
674: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 675: my $lonidsdir;
676: if ($name eq 'lonDAV') {
677: $lonidsdir=$r->dir_config('lonDAVsessDir');
678: } else {
679: $lonidsdir=$r->dir_config('lonIDsDir');
680: }
1.1355 raeburn 681: if (!-e "$lonidsdir/$handle.id") {
682: if ((ref($domref)) && ($name eq 'lonID') &&
683: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
684: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
685: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
686: $$domref = $possudom;
687: }
688: }
689: return undef;
690: }
1.916 albertel 691:
1.917 albertel 692: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
693: return undef if (!$opened);
1.916 albertel 694:
695: flock($idf,LOCK_SH);
696: my %disk_env;
697: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
698: &GDBM_READER(),0640)) {
699: return undef;
700: }
701:
702: if (!defined($disk_env{'user.name'})
703: || !defined($disk_env{'user.domain'})) {
704: return undef;
705: }
1.1245 raeburn 706:
707: if (ref($userhashref) eq 'HASH') {
708: $userhashref->{'name'} = $disk_env{'user.name'};
709: $userhashref->{'domain'} = $disk_env{'user.domain'};
1.1361 raeburn 710: $userhashref->{'lti'} = $disk_env{'request.lti.login'};
1.1212 raeburn 711: }
1.1245 raeburn 712:
1.916 albertel 713: return $handle;
714: }
715:
1.830 albertel 716: sub timed_flock {
717: my ($file,$lock_type) = @_;
718: my $failed=0;
719: eval {
720: local $SIG{__DIE__}='DEFAULT';
721: local $SIG{ALRM}=sub {
722: $failed=1;
723: die("failed lock");
724: };
725: alarm(13);
726: flock($file,$lock_type);
727: alarm(0);
728: };
729: if ($failed) {
730: return undef;
731: } else {
732: return 1;
733: }
734: }
735:
1.5 www 736: # ---------------------------------------------------------- Append Environment
737:
738: sub appenv {
1.949 raeburn 739: my ($newenv,$roles) = @_;
740: if (ref($newenv) eq 'HASH') {
741: foreach my $key (keys(%{$newenv})) {
742: my $refused = 0;
743: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
744: $refused = 1;
745: if (ref($roles) eq 'ARRAY') {
1.1250 raeburn 746: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./});
1.949 raeburn 747: if (grep(/^\Q$role\E$/,@{$roles})) {
748: $refused = 0;
749: }
750: }
751: }
752: if ($refused) {
753: &logthis("<font color=\"blue\">WARNING: ".
754: "Attempt to modify environment ".$key." to ".$newenv->{$key}
755: .'</font>');
756: delete($newenv->{$key});
757: } else {
758: $env{$key}=$newenv->{$key};
759: }
760: }
761: my $opened = open(my $env_file,'+<',$env{'user.environment'});
762: if ($opened
763: && &timed_flock($env_file,LOCK_EX)
764: &&
765: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
766: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
767: while (my ($key,$value) = each(%{$newenv})) {
768: $disk_env{$key} = $value;
769: }
770: untie(%disk_env);
1.35 www 771: }
1.191 harris41 772: }
1.56 www 773: return 'ok';
774: }
775: # ----------------------------------------------------- Delete from Environment
776:
777: sub delenv {
1.1104 raeburn 778: my ($delthis,$regexp,$roles) = @_;
779: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
780: my $refused = 1;
781: if (ref($roles) eq 'ARRAY') {
782: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
783: if (grep(/^\Q$role\E$/,@{$roles})) {
784: $refused = 0;
785: }
786: }
787: if ($refused) {
788: &logthis("<font color=\"blue\">WARNING: ".
789: "Attempt to delete from environment ".$delthis);
790: return 'error';
791: }
1.56 www 792: }
1.917 albertel 793: my $opened = open(my $env_file,'+<',$env{'user.environment'});
794: if ($opened
1.915 albertel 795: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 796: &&
797: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
798: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 799: foreach my $key (keys(%disk_env)) {
1.987 raeburn 800: if ($regexp) {
801: if ($key=~/^$delthis/) {
802: delete($env{$key});
803: delete($disk_env{$key});
804: }
805: } else {
806: if ($key=~/^\Q$delthis\E/) {
807: delete($env{$key});
808: delete($disk_env{$key});
809: }
810: }
1.448 albertel 811: }
1.783 albertel 812: untie(%disk_env);
1.5 www 813: }
814: return 'ok';
1.369 albertel 815: }
816:
1.790 albertel 817: sub get_env_multiple {
818: my ($name) = @_;
819: my @values;
820: if (defined($env{$name})) {
821: # exists is it an array
822: if (ref($env{$name})) {
823: @values=@{ $env{$name} };
824: } else {
825: $values[0]=$env{$name};
826: }
827: }
828: return(@values);
829: }
830:
1.958 www 831: # ------------------------------------------------------------------- Locking
832:
833: sub set_lock {
834: my ($text)=@_;
835: $locknum++;
836: my $id=$$.'-'.$locknum;
837: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
838: 'session.lock.'.$id => $text});
839: return $id;
840: }
841:
842: sub get_locks {
843: my $num=0;
844: my %texts=();
845: foreach my $lock (split(/\,/,$env{'session.locks'})) {
846: if ($lock=~/\w/) {
847: $num++;
848: $texts{$lock}=$env{'session.lock.'.$lock};
849: }
850: }
851: return ($num,%texts);
852: }
853:
854: sub remove_lock {
855: my ($id)=@_;
856: my $newlocks='';
857: foreach my $lock (split(/\,/,$env{'session.locks'})) {
858: if (($lock=~/\w/) && ($lock ne $id)) {
859: $newlocks.=','.$lock;
860: }
861: }
862: &appenv({'session.locks' => $newlocks});
863: &delenv('session.lock.'.$id);
864: }
865:
866: sub remove_all_locks {
867: my $activelocks=$env{'session.locks'};
868: foreach my $lock (split(/\,/,$env{'session.locks'})) {
869: if ($lock=~/\w/) {
870: &remove_lock($lock);
871: }
872: }
873: }
874:
875:
1.369 albertel 876: # ------------------------------------------ Find out current server userload
877: sub userload {
878: my $numusers=0;
879: {
880: opendir(LONIDS,$perlvar{'lonIDsDir'});
881: my $filename;
882: my $curtime=time;
883: while ($filename=readdir(LONIDS)) {
1.925 albertel 884: next if ($filename eq '.' || $filename eq '..');
885: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 886: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 887: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 888: }
889: closedir(LONIDS);
890: }
891: my $userloadpercent=0;
892: my $maxuserload=$perlvar{'lonUserLoadLim'};
893: if ($maxuserload) {
1.371 albertel 894: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 895: }
1.372 albertel 896: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 897: return $userloadpercent;
1.283 www 898: }
899:
1.1 albertel 900: # ------------------------------ Find server with least workload from spare.tab
1.11 www 901:
1.1 albertel 902: sub spareserver {
1.1083 raeburn 903: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 904: my $spare_server;
1.370 albertel 905: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 906: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
907: : $userloadpercent;
1.1083 raeburn 908: my ($uint_dom,$remotesessions);
909: if (($udom ne '') && (&domain($udom) ne '')) {
910: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
911: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
912: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
913: $remotesessions = $udomdefaults{'remotesessions'};
914: }
1.1123 raeburn 915: my $spareshash = &this_host_spares($udom);
916: if (ref($spareshash) eq 'HASH') {
917: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
918: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1.1279 raeburn 919: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
920: $try_server));
1.1123 raeburn 921: ($spare_server, $lowest_load) =
922: &compare_server_load($try_server, $spare_server, $lowest_load);
923: }
1.1083 raeburn 924: }
1.784 albertel 925:
1.1123 raeburn 926: my $found_server = ($spare_server ne '' && $lowest_load < 100);
927:
928: if (!$found_server) {
929: if (ref($spareshash->{'default'}) eq 'ARRAY') {
930: foreach my $try_server (@{ $spareshash->{'default'} }) {
1.1279 raeburn 931: next unless (&spare_can_host($udom,$uint_dom,
932: $remotesessions,$try_server));
1.1123 raeburn 933: ($spare_server, $lowest_load) =
934: &compare_server_load($try_server, $spare_server, $lowest_load);
935: }
936: }
937: }
1.784 albertel 938: }
939:
940: if (!$want_server_name) {
1.968 raeburn 941: my $protocol = 'http';
942: if ($protocol{$spare_server} eq 'https') {
943: $protocol = $protocol{$spare_server};
944: }
1.1001 raeburn 945: if (defined($spare_server)) {
946: my $hostname = &hostname($spare_server);
1.1083 raeburn 947: if (defined($hostname)) {
1.1001 raeburn 948: $spare_server = $protocol.'://'.$hostname;
949: }
950: }
1.784 albertel 951: }
952: return $spare_server;
953: }
954:
955: sub compare_server_load {
1.1253 raeburn 956: my ($try_server, $spare_server, $lowest_load, $required) = @_;
957:
958: if ($required) {
959: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
960: my $remoterev = &get_server_loncaparev(undef,$try_server);
961: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
962: if (($major eq '' && $minor eq '') ||
963: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
964: return ($spare_server,$lowest_load);
965: }
966: }
1.784 albertel 967:
968: my $loadans = &reply('load', $try_server);
969: my $userloadans = &reply('userload',$try_server);
970:
971: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 972: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 973: }
974:
975: my $load;
976: if ($loadans =~ /\d/) {
977: if ($userloadans =~ /\d/) {
978: #both are numbers, pick the bigger one
979: $load = ($loadans > $userloadans) ? $loadans
980: : $userloadans;
1.411 albertel 981: } else {
1.784 albertel 982: $load = $loadans;
1.411 albertel 983: }
1.784 albertel 984: } else {
985: $load = $userloadans;
986: }
987:
988: if (($load =~ /\d/) && ($load < $lowest_load)) {
989: $spare_server = $try_server;
990: $lowest_load = $load;
1.370 albertel 991: }
1.784 albertel 992: return ($spare_server,$lowest_load);
1.202 matthew 993: }
1.914 albertel 994:
995: # --------------------------- ask offload servers if user already has a session
996: sub find_existing_session {
997: my ($udom,$uname) = @_;
1.1123 raeburn 998: my $spareshash = &this_host_spares($udom);
999: if (ref($spareshash) eq 'HASH') {
1000: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
1001: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1002: return $try_server if (&has_user_session($try_server, $udom, $uname));
1003: }
1004: }
1005: if (ref($spareshash->{'default'}) eq 'ARRAY') {
1006: foreach my $try_server (@{ $spareshash->{'default'} }) {
1007: return $try_server if (&has_user_session($try_server, $udom, $uname));
1008: }
1009: }
1.914 albertel 1010: }
1011: return;
1012: }
1013:
1014: # -------------------------------- ask if server already has a session for user
1015: sub has_user_session {
1016: my ($lonid,$udom,$uname) = @_;
1017: my $result = &reply(join(':','userhassession',
1018: map {&escape($_)} ($udom,$uname)),$lonid);
1019: return 1 if ($result eq 'ok');
1020:
1021: return 0;
1022: }
1023:
1.1076 raeburn 1024: # --------- determine least loaded server in a user's domain which allows login
1025:
1026: sub choose_server {
1.1259 raeburn 1027: my ($udom,$checkloginvia,$required,$skiploadbal) = @_;
1.1076 raeburn 1028: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 1029: my %servers = &get_servers($udom);
1.1076 raeburn 1030: my $lowest_load = 30000;
1.1259 raeburn 1031: my ($login_host,$hostname,$portal_path,$isredirect,$balancers);
1032: if ($skiploadbal) {
1033: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
1034: unless (defined($cached)) {
1035: my $cachetime = 60*60*24;
1036: my %domconfig =
1037: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1038: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1039: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
1040: $cachetime);
1041: }
1042: }
1043: }
1.1076 raeburn 1044: foreach my $lonhost (keys(%servers)) {
1.1259 raeburn 1045: if ($skiploadbal) {
1046: if (ref($balancers) eq 'HASH') {
1047: next if (exists($balancers->{$lonhost}));
1048: }
1049: }
1.1115 raeburn 1050: my $loginvia;
1051: if ($checkloginvia) {
1052: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 1053: if ($loginvia) {
1054: my ($server,$path) = split(/:/,$loginvia);
1055: ($login_host, $lowest_load) =
1.1253 raeburn 1056: &compare_server_load($server, $login_host, $lowest_load, $required);
1.1116 raeburn 1057: if ($login_host eq $server) {
1058: $portal_path = $path;
1.1151 raeburn 1059: $isredirect = 1;
1.1116 raeburn 1060: }
1061: } else {
1062: ($login_host, $lowest_load) =
1.1253 raeburn 1063: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1116 raeburn 1064: if ($login_host eq $lonhost) {
1065: $portal_path = '';
1.1151 raeburn 1066: $isredirect = '';
1.1116 raeburn 1067: }
1068: }
1069: } else {
1.1076 raeburn 1070: ($login_host, $lowest_load) =
1.1253 raeburn 1071: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1076 raeburn 1072: }
1073: }
1074: if ($login_host ne '') {
1.1116 raeburn 1075: $hostname = &hostname($login_host);
1.1076 raeburn 1076: }
1.1331 raeburn 1077: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);
1.1076 raeburn 1078: }
1079:
1.202 matthew 1080: # --------------------------------------------- Try to change a user's password
1081:
1082: sub changepass {
1.799 raeburn 1083: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 1084: $currentpass = &escape($currentpass);
1085: $newpass = &escape($newpass);
1.1030 raeburn 1086: my $lonhost = $perlvar{'lonHostID'};
1087: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 1088: $server);
1089: if (! $answer) {
1090: &logthis("No reply on password change request to $server ".
1091: "by $uname in domain $udom.");
1092: } elsif ($answer =~ "^ok") {
1093: &logthis("$uname in $udom successfully changed their password ".
1094: "on $server.");
1095: } elsif ($answer =~ "^pwchange_failure") {
1096: &logthis("$uname in $udom was unable to change their password ".
1097: "on $server. The action was blocked by either lcpasswd ".
1098: "or pwchange");
1099: } elsif ($answer =~ "^non_authorized") {
1100: &logthis("$uname in $udom did not get their password correct when ".
1101: "attempting to change it on $server.");
1102: } elsif ($answer =~ "^auth_mode_error") {
1103: &logthis("$uname in $udom attempted to change their password despite ".
1104: "not being locally or internally authenticated on $server.");
1105: } elsif ($answer =~ "^unknown_user") {
1106: &logthis("$uname in $udom attempted to change their password ".
1107: "on $server but were unable to because $server is not ".
1108: "their home server.");
1109: } elsif ($answer =~ "^refused") {
1110: &logthis("$server refused to change $uname in $udom password because ".
1111: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1112: } elsif ($answer =~ "invalid_client") {
1113: &logthis("$server refused to change $uname in $udom password because ".
1114: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1115: }
1116: return $answer;
1.1 albertel 1117: }
1118:
1.169 harris41 1119: # ----------------------- Try to determine user's current authentication scheme
1120:
1121: sub queryauthenticate {
1122: my ($uname,$udom)=@_;
1.456 albertel 1123: my $uhome=&homeserver($uname,$udom);
1124: if (!$uhome) {
1125: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1126: return 'no_host';
1127: }
1128: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1129: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1130: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1131: }
1.456 albertel 1132: return $answer;
1.169 harris41 1133: }
1134:
1.1 albertel 1135: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1136:
1.1 albertel 1137: sub authenticate {
1.1073 raeburn 1138: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1139: $upass=&escape($upass);
1140: $uname= &LONCAPA::clean_username($uname);
1.836 www 1141: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1142: my $newhome;
1.836 www 1143: if ((!$uhome) || ($uhome eq 'no_host')) {
1144: # Maybe the machine was offline and only re-appeared again recently?
1145: &reconlonc();
1146: # One more
1.952 raeburn 1147: $uhome=&homeserver($uname,$udom,1);
1148: if (($uhome eq 'no_host') && $checkdefauth) {
1149: if (defined(&domain($udom,'primary'))) {
1150: $newhome=&domain($udom,'primary');
1151: }
1152: if ($newhome ne '') {
1153: $uhome = $newhome;
1154: }
1155: }
1.836 www 1156: if ((!$uhome) || ($uhome eq 'no_host')) {
1157: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1158: return 'no_host';
1159: }
1.1 albertel 1160: }
1.1073 raeburn 1161: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1162: if ($answer eq 'authorized') {
1.952 raeburn 1163: if ($newhome) {
1164: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1165: return 'no_account_on_host';
1166: } else {
1167: &logthis("User $uname at $udom authorized by $uhome");
1168: return $uhome;
1169: }
1.471 albertel 1170: }
1171: if ($answer eq 'non_authorized') {
1172: &logthis("User $uname at $udom rejected by $uhome");
1173: return 'no_host';
1.9 www 1174: }
1.471 albertel 1175: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1176: return 'no_host';
1177: }
1178:
1.1073 raeburn 1179: sub can_host_session {
1.1074 raeburn 1180: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1181: my $canhost = 1;
1.1074 raeburn 1182: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1183: if (ref($remotesessions) eq 'HASH') {
1184: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1185: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1186: $canhost = 0;
1187: } else {
1188: $canhost = 1;
1189: }
1190: }
1191: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1192: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1193: $canhost = 1;
1194: } else {
1195: $canhost = 0;
1196: }
1197: }
1198: if ($canhost) {
1199: if ($remotesessions->{'version'} ne '') {
1200: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1201: if ($reqmajor ne '' && $reqminor ne '') {
1202: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1203: my $major = $1;
1204: my $minor = $2;
1205: if (($major < $reqmajor ) ||
1206: (($major == $reqmajor) && ($minor < $reqminor))) {
1207: $canhost = 0;
1208: }
1209: } else {
1210: $canhost = 0;
1211: }
1212: }
1213: }
1214: }
1215: }
1216: if ($canhost) {
1217: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1218: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1219: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1220: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1221: if (($uint_dom ne '') &&
1222: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1223: $canhost = 0;
1224: } else {
1225: $canhost = 1;
1226: }
1227: }
1228: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1229: if (($uint_dom ne '') &&
1230: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1231: $canhost = 1;
1232: } else {
1233: $canhost = 0;
1234: }
1235: }
1236: }
1237: }
1238: return $canhost;
1239: }
1240:
1.1083 raeburn 1241: sub spare_can_host {
1242: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1243: my $canhost=1;
1.1279 raeburn 1244: my $try_server_hostname = &hostname($try_server);
1245: my $serverhomeID = &get_server_homeID($try_server_hostname);
1246: my $serverhomedom = &host_domain($serverhomeID);
1247: my %defdomdefaults = &get_domain_defaults($serverhomedom);
1248: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {
1249: if ($defdomdefaults{'offloadnow'}{$try_server}) {
1250: $canhost = 0;
1251: }
1252: }
1253: if (($canhost) && ($uint_dom)) {
1254: my @intdoms;
1255: my $internet_names = &get_internet_names($try_server);
1256: if (ref($internet_names) eq 'ARRAY') {
1257: @intdoms = @{$internet_names};
1258: }
1259: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1260: my $remoterev = &get_server_loncaparev(undef,$try_server);
1261: $canhost = &can_host_session($udom,$try_server,$remoterev,
1262: $remotesessions,
1263: $defdomdefaults{'hostedsessions'});
1264: }
1.1083 raeburn 1265: }
1266: return $canhost;
1267: }
1268:
1.1123 raeburn 1269: sub this_host_spares {
1270: my ($dom) = @_;
1.1126 raeburn 1271: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1272: my @hosts = ¤t_machine_ids();
1273: foreach my $lonhost (@hosts) {
1274: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1275: $dom_in_use = $dom;
1276: $lonhost_in_use = $lonhost;
1.1123 raeburn 1277: last;
1278: }
1279: }
1.1126 raeburn 1280: if ($dom_in_use ne '') {
1281: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1282: }
1283: if (ref($result) ne 'HASH') {
1284: $lonhost_in_use = $perlvar{'lonHostID'};
1285: $dom_in_use = &host_domain($lonhost_in_use);
1286: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1287: if (ref($result) ne 'HASH') {
1288: $result = \%spareid;
1289: }
1290: }
1291: return $result;
1292: }
1293:
1294: sub spares_for_offload {
1295: my ($dom_in_use,$lonhost_in_use) = @_;
1296: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1297: if (defined($cached)) {
1298: return $result;
1299: } else {
1.1126 raeburn 1300: my $cachetime = 60*60*24;
1301: my %domconfig =
1302: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1303: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1304: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1305: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1306: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1307: }
1308: }
1309: }
1310: }
1.1126 raeburn 1311: return;
1.1123 raeburn 1312: }
1313:
1.1129 raeburn 1314: sub get_lonbalancer_config {
1315: my ($servers) = @_;
1316: my ($currbalancer,$currtargets);
1317: if (ref($servers) eq 'HASH') {
1318: foreach my $server (keys(%{$servers})) {
1319: my %what = (
1320: spareid => 1,
1321: perlvar => 1,
1322: );
1323: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1324: if ($result eq 'ok') {
1325: if (ref($returnhash) eq 'HASH') {
1326: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1327: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1328: $currbalancer = $server;
1329: $currtargets = {};
1330: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1331: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1332: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1333: }
1334: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1335: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1336: }
1337: }
1338: last;
1339: }
1340: }
1341: }
1342: }
1343: }
1344: }
1345: return ($currbalancer,$currtargets);
1346: }
1347:
1348: sub check_loadbalancing {
1.1331 raeburn 1349: my ($uname,$udom,$caller) = @_;
1.1191 raeburn 1350: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1351: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1352: my $lonhost = $perlvar{'lonHostID'};
1.1175 raeburn 1353: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1354: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1355: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1356: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1357: my $serverhomedom = &host_domain($lonhost);
1.1307 raeburn 1358: my $domneedscache;
1.1129 raeburn 1359: my $cachetime = 60*60*24;
1360:
1361: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1362: $dom_in_use = $udom;
1363: $homeintdom = 1;
1364: } else {
1365: $dom_in_use = $serverhomedom;
1366: }
1367: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1368: unless (defined($cached)) {
1369: my %domconfig =
1370: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1371: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1372: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1307 raeburn 1373: } else {
1374: $domneedscache = $dom_in_use;
1.1129 raeburn 1375: }
1376: }
1377: if (ref($result) eq 'HASH') {
1.1191 raeburn 1378: ($is_balancer,$currtargets,$currrules) =
1379: &check_balancer_result($result,@hosts);
1.1129 raeburn 1380: if ($is_balancer) {
1381: if (ref($currrules) eq 'HASH') {
1382: if ($homeintdom) {
1383: if ($uname ne '') {
1384: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1385: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1386: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1387: $rule_in_effect = $currrules->{'_LC_author'};
1388: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1389: $rule_in_effect = $currrules->{'_LC_adv'}
1390: }
1391: }
1392: if ($rule_in_effect eq '') {
1393: my %userenv = &userenvironment($udom,$uname,'inststatus');
1394: if ($userenv{'inststatus'} ne '') {
1395: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1396: my ($othertitle,$usertypes,$types) =
1397: &Apache::loncommon::sorted_inst_types($udom);
1398: if (ref($types) eq 'ARRAY') {
1399: foreach my $type (@{$types}) {
1400: if (grep(/^\Q$type\E$/,@statuses)) {
1401: if (exists($currrules->{$type})) {
1402: $rule_in_effect = $currrules->{$type};
1403: }
1404: }
1405: }
1406: }
1407: } else {
1408: if (exists($currrules->{'default'})) {
1409: $rule_in_effect = $currrules->{'default'};
1410: }
1411: }
1412: }
1413: } else {
1414: if (exists($currrules->{'default'})) {
1415: $rule_in_effect = $currrules->{'default'};
1416: }
1417: }
1418: } else {
1419: if ($currrules->{'_LC_external'} ne '') {
1420: $rule_in_effect = $currrules->{'_LC_external'};
1421: }
1422: }
1423: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1424: $uname,$udom);
1425: }
1426: }
1427: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1.1239 raeburn 1428: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1.1129 raeburn 1429: unless (defined($cached)) {
1430: my %domconfig =
1431: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1432: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1307 raeburn 1433: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);
1434: } else {
1435: $domneedscache = $serverhomedom;
1.1129 raeburn 1436: }
1437: }
1438: if (ref($result) eq 'HASH') {
1.1191 raeburn 1439: ($is_balancer,$currtargets,$currrules) =
1440: &check_balancer_result($result,@hosts);
1441: if ($is_balancer) {
1.1129 raeburn 1442: if (ref($currrules) eq 'HASH') {
1443: if ($currrules->{'_LC_internetdom'} ne '') {
1444: $rule_in_effect = $currrules->{'_LC_internetdom'};
1445: }
1446: }
1447: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1448: $uname,$udom);
1449: }
1450: } else {
1451: if ($perlvar{'lonBalancer'} eq 'yes') {
1452: $is_balancer = 1;
1453: $offloadto = &this_host_spares($dom_in_use);
1454: }
1.1307 raeburn 1455: unless (defined($cached)) {
1456: $domneedscache = $serverhomedom;
1457: }
1.1129 raeburn 1458: }
1459: } else {
1460: if ($perlvar{'lonBalancer'} eq 'yes') {
1461: $is_balancer = 1;
1462: $offloadto = &this_host_spares($dom_in_use);
1463: }
1.1307 raeburn 1464: unless (defined($cached)) {
1465: $domneedscache = $serverhomedom;
1466: }
1467: }
1468: if ($domneedscache) {
1469: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
1.1129 raeburn 1470: }
1.1176 raeburn 1471: if ($is_balancer) {
1472: my $lowest_load = 30000;
1473: if (ref($offloadto) eq 'HASH') {
1474: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1475: foreach my $try_server (@{$offloadto->{'primary'}}) {
1476: ($otherserver,$lowest_load) =
1477: &compare_server_load($try_server,$otherserver,$lowest_load);
1478: }
1.1129 raeburn 1479: }
1.1176 raeburn 1480: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1481:
1.1176 raeburn 1482: if (!$found_server) {
1483: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1484: foreach my $try_server (@{$offloadto->{'default'}}) {
1485: ($otherserver,$lowest_load) =
1486: &compare_server_load($try_server,$otherserver,$lowest_load);
1487: }
1488: }
1489: }
1490: } elsif (ref($offloadto) eq 'ARRAY') {
1491: if (@{$offloadto} == 1) {
1492: $otherserver = $offloadto->[0];
1493: } elsif (@{$offloadto} > 1) {
1494: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1495: ($otherserver,$lowest_load) =
1496: &compare_server_load($try_server,$otherserver,$lowest_load);
1497: }
1498: }
1499: }
1.1331 raeburn 1500: unless ($caller eq 'login') {
1501: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1502: $is_balancer = 0;
1503: if ($uname ne '' && $udom ne '') {
1504: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1.1176 raeburn 1505:
1.1331 raeburn 1506: &appenv({'user.loadbalexempt' => $lonhost,
1507: 'user.loadbalcheck.time' => time});
1508: }
1.1176 raeburn 1509: }
1.1129 raeburn 1510: }
1511: }
1512: }
1513: return ($is_balancer,$otherserver);
1514: }
1515:
1.1191 raeburn 1516: sub check_balancer_result {
1517: my ($result,@hosts) = @_;
1518: my ($is_balancer,$currtargets,$currrules);
1519: if (ref($result) eq 'HASH') {
1520: if ($result->{'lonhost'} ne '') {
1521: my $currbalancer = $result->{'lonhost'};
1522: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1523: $is_balancer = 1;
1524: $currtargets = $result->{'targets'};
1525: $currrules = $result->{'rules'};
1526: }
1527: } else {
1528: foreach my $key (keys(%{$result})) {
1529: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1530: (ref($result->{$key}) eq 'HASH')) {
1531: $is_balancer = 1;
1532: $currrules = $result->{$key}{'rules'};
1533: $currtargets = $result->{$key}{'targets'};
1534: last;
1535: }
1536: }
1537: }
1538: }
1539: return ($is_balancer,$currtargets,$currrules);
1540: }
1541:
1.1129 raeburn 1542: sub get_loadbalancer_targets {
1543: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1544: my $offloadto;
1.1175 raeburn 1545: if ($rule_in_effect eq 'none') {
1546: return [$perlvar{'lonHostID'}];
1547: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1548: $offloadto = $currtargets;
1549: } else {
1550: if ($rule_in_effect eq 'homeserver') {
1551: my $homeserver = &homeserver($uname,$udom);
1552: if ($homeserver ne 'no_host') {
1553: $offloadto = [$homeserver];
1554: }
1555: } elsif ($rule_in_effect eq 'externalbalancer') {
1556: my %domconfig =
1557: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1558: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1559: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1560: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1561: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1562: }
1563: }
1564: } else {
1.1178 raeburn 1565: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1566: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1567: if (&hostname($remotebalancer) ne '') {
1568: $offloadto = [$remotebalancer];
1569: }
1570: }
1571: } elsif (&hostname($rule_in_effect) ne '') {
1572: $offloadto = [$rule_in_effect];
1573: }
1574: }
1575: return $offloadto;
1576: }
1577:
1.1127 raeburn 1578: sub internet_dom_servers {
1579: my ($dom) = @_;
1580: my (%uniqservers,%servers);
1581: my $primaryserver = &hostname(&domain($dom,'primary'));
1582: my @machinedoms = &machine_domains($primaryserver);
1583: foreach my $mdom (@machinedoms) {
1584: my %currservers = %servers;
1585: my %server = &get_servers($mdom);
1586: %servers = (%currservers,%server);
1587: }
1588: my %by_hostname;
1589: foreach my $id (keys(%servers)) {
1590: push(@{$by_hostname{$servers{$id}}},$id);
1591: }
1592: foreach my $hostname (sort(keys(%by_hostname))) {
1593: if (@{$by_hostname{$hostname}} > 1) {
1594: my $match = 0;
1595: foreach my $id (@{$by_hostname{$hostname}}) {
1596: if (&host_domain($id) eq $dom) {
1597: $uniqservers{$id} = $hostname;
1598: $match = 1;
1599: }
1600: }
1601: unless ($match) {
1602: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1603: }
1604: } else {
1605: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1606: }
1607: }
1608: return %uniqservers;
1609: }
1610:
1.1347 raeburn 1611: sub trusted_domains {
1612: my ($cmdtype,$calldom) = @_;
1.1349 raeburn 1613: my ($trusted,$untrusted);
1.1347 raeburn 1614: if (&domain($calldom) eq '') {
1.1349 raeburn 1615: return ($trusted,$untrusted);
1.1347 raeburn 1616: }
1617: unless ($cmdtype =~ /^(content|shared|enroll|coaurem|domroles|catalog|reqcrs|msg)$/) {
1.1349 raeburn 1618: return ($trusted,$untrusted);
1.1347 raeburn 1619: }
1620: my $callprimary = &domain($calldom,'primary');
1621: my $intcalldom = &Apache::lonnet::internet_dom($callprimary);
1622: if ($intcalldom eq '') {
1.1349 raeburn 1623: return ($trusted,$untrusted);
1.1347 raeburn 1624: }
1625:
1626: my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new('trust',$calldom);
1627: unless (defined($cached)) {
1628: my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$calldom);
1629: &Apache::lonnet::do_cache_new('trust',$calldom,$domconfig{'trust'},3600);
1630: $trustconfig = $domconfig{'trust'};
1631: }
1632: if (ref($trustconfig)) {
1633: my (%possexc,%possinc,@allexc,@allinc);
1634: if (ref($trustconfig->{$cmdtype}) eq 'HASH') {
1635: if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') {
1636: map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}};
1637: }
1638: if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') {
1639: map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}};
1640: }
1641: }
1642: if (keys(%possexc)) {
1643: if (keys(%possinc)) {
1644: foreach my $key (sort(keys(%possexc))) {
1645: next if ($key eq $intcalldom);
1646: unless ($possinc{$key}) {
1647: push(@allexc,$key);
1648: }
1649: }
1650: } else {
1651: @allexc = sort(keys(%possexc));
1652: }
1653: }
1654: if (keys(%possinc)) {
1655: $possinc{$intcalldom} = 1;
1656: @allinc = sort(keys(%possinc));
1657: }
1658: if ((@allexc > 0) || (@allinc > 0)) {
1659: my %doms_by_intdom;
1660: my %allintdoms = &all_host_intdom();
1661: my %alldoms = &all_host_domain();
1662: foreach my $key (%allintdoms) {
1663: if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') {
1664: unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) {
1665: push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key});
1666: }
1667: } else {
1668: $doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}];
1669: }
1670: }
1671: foreach my $exc (@allexc) {
1672: if (ref($doms_by_intdom{$exc}) eq 'ARRAY') {
1.1349 raeburn 1673: $untrusted = $doms_by_intdom{$exc};
1.1347 raeburn 1674: }
1675: }
1676: foreach my $inc (@allinc) {
1677: if (ref($doms_by_intdom{$inc}) eq 'ARRAY') {
1.1349 raeburn 1678: $trusted = $doms_by_intdom{$inc};
1.1347 raeburn 1679: }
1680: }
1681: }
1682: }
1.1349 raeburn 1683: return ($trusted,$untrusted);
1.1347 raeburn 1684: }
1685:
1686: sub will_trust {
1687: my ($cmdtype,$domain,$possdom) = @_;
1688: return 1 if ($domain eq $possdom);
1689: my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom);
1690: my $willtrust;
1691: if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) {
1692: if (grep(/^\Q$domain\E$/,@{$trustedref})) {
1693: $willtrust = 1;
1694: }
1695: } elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) {
1696: unless (grep(/^\Q$domain\E$/,@{$untrustedref})) {
1697: $willtrust = 1;
1698: }
1699: } else {
1700: $willtrust = 1;
1701: }
1702: return $willtrust;
1703: }
1704:
1.1 albertel 1705: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1706:
1.599 albertel 1707: my %homecache;
1.1 albertel 1708: sub homeserver {
1.230 stredwic 1709: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1710: my $index="$uname:$udom";
1.426 albertel 1711:
1.599 albertel 1712: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1713:
1714: my %servers = &get_servers($udom,'library');
1715: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1716: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1717: exists($badServerCache{$tryserver}));
1.841 albertel 1718:
1719: my $answer=reply("home:$udom:$uname",$tryserver);
1720: if ($answer eq 'found') {
1721: delete($badServerCache{$tryserver});
1722: return $homecache{$index}=$tryserver;
1723: } elsif ($answer eq 'no_host') {
1724: $badServerCache{$tryserver}=1;
1725: }
1.1 albertel 1726: }
1727: return 'no_host';
1.70 www 1728: }
1729:
1.1300 raeburn 1730: # ----- Find the usernames behind a list of student/employee IDs or clicker IDs
1.70 www 1731:
1732: sub idget {
1.1300 raeburn 1733: my ($udom,$idsref,$namespace)=@_;
1.70 www 1734: my %returnhash=();
1.1300 raeburn 1735: my @ids=();
1736: if (ref($idsref) eq 'ARRAY') {
1737: @ids = @{$idsref};
1738: } else {
1739: return %returnhash;
1740: }
1741: if ($namespace eq '') {
1742: $namespace = 'ids';
1743: }
1.70 www 1744:
1.841 albertel 1745: my %servers = &get_servers($udom,'library');
1746: foreach my $tryserver (keys(%servers)) {
1.1299 raeburn 1747: my $idlist=join('&', map { &escape($_); } @ids);
1.1300 raeburn 1748: if ($namespace eq 'ids') {
1749: $idlist=~tr/A-Z/a-z/;
1750: }
1751: my $reply;
1752: if ($namespace eq 'ids') {
1753: $reply=&reply("idget:$udom:".$idlist,$tryserver);
1754: } else {
1755: $reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver);
1756: }
1.841 albertel 1757: my @answer=();
1758: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1759: @answer=split(/\&/,$reply);
1760: } ;
1761: my $i;
1762: for ($i=0;$i<=$#ids;$i++) {
1763: if ($answer[$i]) {
1.1299 raeburn 1764: $returnhash{$ids[$i]}=&unescape($answer[$i]);
1.1300 raeburn 1765: }
1.841 albertel 1766: }
1.1300 raeburn 1767: }
1.70 www 1768: return %returnhash;
1769: }
1770:
1771: # ------------------------------------- Find the IDs behind a list of usernames
1772:
1773: sub idrget {
1774: my ($udom,@unames)=@_;
1775: my %returnhash=();
1.800 albertel 1776: foreach my $uname (@unames) {
1777: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1778: }
1.70 www 1779: return %returnhash;
1780: }
1781:
1.1300 raeburn 1782: # Store away a list of names and associated student/employee IDs or clicker IDs
1.70 www 1783:
1784: sub idput {
1.1300 raeburn 1785: my ($udom,$idsref,$uhom,$namespace)=@_;
1.70 www 1786: my %servers=();
1.1300 raeburn 1787: my %ids=();
1788: my %byid = ();
1789: if (ref($idsref) eq 'HASH') {
1790: %ids=%{$idsref};
1791: }
1792: if ($namespace eq '') {
1793: $namespace = 'ids';
1794: }
1.800 albertel 1795: foreach my $uname (keys(%ids)) {
1796: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1.1300 raeburn 1797: if ($uhom eq '') {
1798: $uhom=&homeserver($uname,$udom);
1799: }
1.70 www 1800: if ($uhom ne 'no_host') {
1.800 albertel 1801: my $esc_unam=&escape($uname);
1.1300 raeburn 1802: if ($namespace eq 'ids') {
1803: my $id=&escape($ids{$uname});
1804: $id=~tr/A-Z/a-z/;
1805: my $esc_unam=&escape($uname);
1806: $servers{$uhom}.=$id.'='.$esc_unam.'&';
1.70 www 1807: } else {
1.1300 raeburn 1808: my @currids = split(/,/,$ids{$uname});
1809: foreach my $id (@currids) {
1810: $byid{$uhom}{$id} .= $uname.',';
1811: }
1812: }
1813: }
1814: }
1815: if ($namespace eq 'clickers') {
1816: foreach my $server (keys(%byid)) {
1817: if (ref($byid{$server}) eq 'HASH') {
1818: foreach my $id (keys(%{$byid{$server}})) {
1819: $byid{$server} =~ s/,$//;
1820: $servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&';
1821: }
1.70 www 1822: }
1823: }
1.191 harris41 1824: }
1.800 albertel 1825: foreach my $server (keys(%servers)) {
1.1300 raeburn 1826: $servers{$server} =~ s/\&$//;
1827: if ($namespace eq 'ids') {
1828: &critical('idput:'.$udom.':'.$servers{$server},$server);
1829: } else {
1830: &critical('updateclickers:'.$udom.':add:'.$servers{$server},$server);
1831: }
1.191 harris41 1832: }
1.344 www 1833: }
1834:
1.1300 raeburn 1835: # ------------- Delete unwanted student/employee IDs or clicker IDs from domain
1.1231 raeburn 1836:
1837: sub iddel {
1.1300 raeburn 1838: my ($udom,$idshashref,$uhome,$namespace)=@_;
1.1231 raeburn 1839: my %result=();
1.1300 raeburn 1840: my %ids=();
1841: my %byid = ();
1842: if (ref($idshashref) eq 'HASH') {
1843: %ids=%{$idshashref};
1844: } else {
1.1231 raeburn 1845: return %result;
1846: }
1.1300 raeburn 1847: if ($namespace eq '') {
1848: $namespace = 'ids';
1849: }
1.1231 raeburn 1850: my %servers=();
1.1300 raeburn 1851: while (my ($id,$unamestr) = each(%ids)) {
1852: if ($namespace eq 'ids') {
1853: my $uhom = $uhome;
1854: if ($uhom eq '') {
1855: $uhom=&homeserver($unamestr,$udom);
1856: }
1857: if ($uhom ne 'no_host') {
1858: $servers{$uhom}.='&'.&escape($id);
1859: }
1860: } else {
1861: my @curritems = split(/,/,$ids{$id});
1862: foreach my $uname (@curritems) {
1863: my $uhom = $uhome;
1864: if ($uhom eq '') {
1865: $uhom=&homeserver($uname,$udom);
1866: }
1867: if ($uhom ne 'no_host') {
1868: $byid{$uhom}{$id} .= $uname.',';
1869: }
1870: }
1.1231 raeburn 1871: }
1.1300 raeburn 1872: }
1873: if ($namespace eq 'clickers') {
1874: foreach my $server (keys(%byid)) {
1875: if (ref($byid{$server}) eq 'HASH') {
1876: foreach my $id (keys(%{$byid{$server}})) {
1877: $byid{$server}{$id} =~ s/,$//;
1878: $servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&';
1879: }
1.1231 raeburn 1880: }
1881: }
1882: }
1883: foreach my $server (keys(%servers)) {
1.1300 raeburn 1884: $servers{$server} =~ s/\&$//;
1885: if ($namespace eq 'ids') {
1886: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
1887: } elsif ($namespace eq 'clickers') {
1888: $result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server);
1889: }
1.1231 raeburn 1890: }
1891: return %result;
1892: }
1893:
1.1300 raeburn 1894: # ----- Update clicker ID-to-username look-ups in clickers.db on library server
1895:
1896: sub updateclickers {
1897: my ($udom,$action,$idshashref,$uhome,$critical) = @_;
1898: my %clickers;
1899: if (ref($idshashref) eq 'HASH') {
1900: %clickers=%{$idshashref};
1901: } else {
1902: return;
1903: }
1904: my $items='';
1905: foreach my $item (keys(%clickers)) {
1906: $items.=&escape($item).'='.&escape($clickers{$item}).'&';
1907: }
1908: $items=~s/\&$//;
1909: my $request = "updateclickers:$udom:$action:$items";
1910: if ($critical) {
1911: return &critical($request,$uhome);
1912: } else {
1913: return &reply($request,$uhome);
1914: }
1915: }
1916:
1.1023 raeburn 1917: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1918: sub dump_dom {
1.1165 droeschl 1919: my ($namespace, $udom, $regexp) = @_;
1920:
1921: $udom ||= $env{'user.domain'};
1922:
1923: return () unless $udom;
1924:
1925: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1926: }
1927:
1.1023 raeburn 1928: # ------------------------------------------ get items from domain db files
1.806 raeburn 1929:
1930: sub get_dom {
1.860 raeburn 1931: my ($namespace,$storearr,$udom,$uhome)=@_;
1.1267 raeburn 1932: return if ($udom eq 'public');
1.806 raeburn 1933: my $items='';
1934: foreach my $item (@$storearr) {
1935: $items.=&escape($item).'&';
1936: }
1937: $items=~s/\&$//;
1.860 raeburn 1938: if (!$udom) {
1939: $udom=$env{'user.domain'};
1.1267 raeburn 1940: return if ($udom eq 'public');
1.860 raeburn 1941: if (defined(&domain($udom,'primary'))) {
1942: $uhome=&domain($udom,'primary');
1943: } else {
1.874 albertel 1944: undef($uhome);
1.860 raeburn 1945: }
1946: } else {
1947: if (!$uhome) {
1948: if (defined(&domain($udom,'primary'))) {
1949: $uhome=&domain($udom,'primary');
1950: }
1951: }
1952: }
1953: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.1344 raeburn 1954: my $rep;
1955: if ($namespace =~ /^enc/) {
1956: $rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
1957: } else {
1958: $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1959: }
1.866 raeburn 1960: my %returnhash;
1.875 albertel 1961: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1962: return %returnhash;
1963: }
1.806 raeburn 1964: my @pairs=split(/\&/,$rep);
1965: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1966: return @pairs;
1967: }
1968: my $i=0;
1969: foreach my $item (@$storearr) {
1970: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1971: $i++;
1972: }
1973: return %returnhash;
1974: } else {
1.880 banghart 1975: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1976: }
1977: }
1978:
1979: # -------------------------------------------- put items in domain db files
1980:
1981: sub put_dom {
1.860 raeburn 1982: my ($namespace,$storehash,$udom,$uhome)=@_;
1983: if (!$udom) {
1984: $udom=$env{'user.domain'};
1985: if (defined(&domain($udom,'primary'))) {
1986: $uhome=&domain($udom,'primary');
1987: } else {
1.874 albertel 1988: undef($uhome);
1.860 raeburn 1989: }
1990: } else {
1991: if (!$uhome) {
1992: if (defined(&domain($udom,'primary'))) {
1993: $uhome=&domain($udom,'primary');
1994: }
1995: }
1996: }
1997: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1998: my $items='';
1999: foreach my $item (keys(%$storehash)) {
2000: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
2001: }
2002: $items=~s/\&$//;
1.1344 raeburn 2003: if ($namespace =~ /^enc/) {
2004: return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);
2005: } else {
2006: return &reply("putdom:$udom:$namespace:$items",$uhome);
2007: }
1.806 raeburn 2008: } else {
1.860 raeburn 2009: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 2010: }
2011: }
2012:
1.1023 raeburn 2013: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 2014: sub newput_dom {
1.1023 raeburn 2015: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 2016: my $result;
2017: if (!$udom) {
2018: $udom=$env{'user.domain'};
2019: }
1.1023 raeburn 2020: if ($udom) {
2021: my $uname = &get_domainconfiguser($udom);
2022: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 2023: }
2024: return $result;
2025: }
2026:
1.1023 raeburn 2027: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 2028: sub del_dom {
1.1023 raeburn 2029: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 2030: if (ref($storearr) eq 'ARRAY') {
2031: if (!$udom) {
2032: $udom=$env{'user.domain'};
2033: }
1.1023 raeburn 2034: if ($udom) {
2035: my $uname = &get_domainconfiguser($udom);
2036: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 2037: }
2038: }
2039: }
2040:
1.1023 raeburn 2041: # ----------------------------------construct domainconfig user for a domain
2042: sub get_domainconfiguser {
2043: my ($udom) = @_;
2044: return $udom.'-domainconfig';
2045: }
2046:
1.837 raeburn 2047: sub retrieve_inst_usertypes {
2048: my ($udom) = @_;
2049: my (%returnhash,@order);
1.989 raeburn 2050: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
2051: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
2052: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1.1256 raeburn 2053: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
1.989 raeburn 2054: } else {
2055: if (defined(&domain($udom,'primary'))) {
2056: my $uhome=&domain($udom,'primary');
2057: my $rep=&reply("inst_usertypes:$udom",$uhome);
2058: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1.1256 raeburn 2059: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
1.989 raeburn 2060: return (\%returnhash,\@order);
2061: }
2062: my ($hashitems,$orderitems) = split(/:/,$rep);
2063: my @pairs=split(/\&/,$hashitems);
2064: foreach my $item (@pairs) {
2065: my ($key,$value)=split(/=/,$item,2);
2066: $key = &unescape($key);
2067: next if ($key =~ /^error: 2 /);
2068: $returnhash{$key}=&thaw_unescape($value);
2069: }
2070: my @esc_order = split(/\&/,$orderitems);
2071: foreach my $item (@esc_order) {
2072: push(@order,&unescape($item));
2073: }
2074: } else {
1.1256 raeburn 2075: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
1.837 raeburn 2076: }
1.1256 raeburn 2077: return (\%returnhash,\@order);
1.837 raeburn 2078: }
2079: }
2080:
1.868 raeburn 2081: sub is_domainimage {
2082: my ($url) = @_;
1.1306 raeburn 2083: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+[^/]-) {
1.868 raeburn 2084: if (&domain($1) ne '') {
2085: return '1';
2086: }
2087: }
2088: return;
2089: }
2090:
1.899 raeburn 2091: sub inst_directory_query {
2092: my ($srch) = @_;
2093: my $udom = $srch->{'srchdomain'};
2094: my %results;
2095: my $homeserver = &domain($udom,'primary');
1.909 raeburn 2096: my $outcome;
1.899 raeburn 2097: if ($homeserver ne '') {
1.1357 raeburn 2098: unless ($homeserver eq $perlvar{'lonHostID'}) {
2099: if ($srch->{'srchby'} eq 'email') {
2100: my $lcrev = &get_server_loncaparev(undef,$homeserver);
2101: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
2102: if (($major eq '' && $minor eq '') || ($major < 2) ||
2103: (($major == 2) && ($minor < 12))) {
2104: return;
2105: }
2106: }
2107: }
1.904 albertel 2108: my $queryid=&reply("querysend:instdirsearch:".
2109: &escape($srch->{'srchby'}).':'.
2110: &escape($srch->{'srchterm'}).':'.
2111: &escape($srch->{'srchtype'}),$homeserver);
2112: my $host=&hostname($homeserver);
2113: if ($queryid !~/^\Q$host\E\_/) {
1.1343 raeburn 2114: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);
1.904 albertel 2115: return;
2116: }
2117: my $response = &get_query_reply($queryid);
2118: my $maxtries = 5;
2119: my $tries = 1;
2120: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2121: $response = &get_query_reply($queryid);
2122: $tries ++;
2123: }
2124:
2125: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 2126: if ($response eq 'unavailable') {
2127: $outcome = $response;
2128: } else {
2129: $outcome = 'ok';
2130: my @matches = split(/\n/,$response);
2131: foreach my $match (@matches) {
2132: my ($key,$value) = split(/=/,$match);
2133: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
2134: }
1.899 raeburn 2135: }
2136: }
2137: }
1.909 raeburn 2138: return ($outcome,%results);
1.899 raeburn 2139: }
2140:
2141: sub usersearch {
2142: my ($srch) = @_;
2143: my $dom = $srch->{'srchdomain'};
2144: my %results;
2145: my %libserv = &all_library();
2146: my $query = 'usersearch';
2147: foreach my $tryserver (keys(%libserv)) {
2148: if (&host_domain($tryserver) eq $dom) {
1.1357 raeburn 2149: unless ($tryserver eq $perlvar{'lonHostID'}) {
2150: if ($srch->{'srchby'} eq 'email') {
2151: my $lcrev = &get_server_loncaparev(undef,$tryserver);
2152: my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
2153: next if (($major eq '' && $minor eq '') || ($major < 2) ||
2154: (($major == 2) && ($minor < 12)));
2155: }
2156: }
1.899 raeburn 2157: my $host=&hostname($tryserver);
2158: my $queryid=
1.911 raeburn 2159: &reply("querysend:".&escape($query).':'.
2160: &escape($srch->{'srchby'}).':'.
1.899 raeburn 2161: &escape($srch->{'srchtype'}).':'.
2162: &escape($srch->{'srchterm'}),$tryserver);
2163: if ($queryid !~/^\Q$host\E\_/) {
2164: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 2165: next;
1.899 raeburn 2166: }
2167: my $reply = &get_query_reply($queryid);
2168: my $maxtries = 1;
2169: my $tries = 1;
2170: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
2171: $reply = &get_query_reply($queryid);
2172: $tries ++;
2173: }
2174: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
2175: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
2176: } else {
1.911 raeburn 2177: my @matches;
2178: if ($reply =~ /\n/) {
2179: @matches = split(/\n/,$reply);
2180: } else {
2181: @matches = split(/\&/,$reply);
2182: }
1.899 raeburn 2183: foreach my $match (@matches) {
2184: my ($uname,$udom,%userhash);
1.911 raeburn 2185: foreach my $entry (split(/:/,$match)) {
2186: my ($key,$value) =
2187: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 2188: $userhash{$key} = $value;
2189: if ($key eq 'username') {
2190: $uname = $value;
2191: } elsif ($key eq 'domain') {
2192: $udom = $value;
1.911 raeburn 2193: }
1.899 raeburn 2194: }
2195: $results{$uname.':'.$udom} = \%userhash;
2196: }
2197: }
2198: }
2199: }
2200: return %results;
2201: }
2202:
1.912 raeburn 2203: sub get_instuser {
2204: my ($udom,$uname,$id) = @_;
2205: my $homeserver = &domain($udom,'primary');
2206: my ($outcome,%results);
2207: if ($homeserver ne '') {
2208: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
2209: &escape($id).':'.&escape($udom),$homeserver);
2210: my $host=&hostname($homeserver);
2211: if ($queryid !~/^\Q$host\E\_/) {
2212: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
2213: return;
2214: }
2215: my $response = &get_query_reply($queryid);
2216: my $maxtries = 5;
2217: my $tries = 1;
2218: while (($response=~/^timeout/) && ($tries < $maxtries)) {
2219: $response = &get_query_reply($queryid);
2220: $tries ++;
2221: }
2222: if (!&error($response) && $response ne 'refused') {
2223: if ($response eq 'unavailable') {
2224: $outcome = $response;
2225: } else {
2226: $outcome = 'ok';
2227: my @matches = split(/\n/,$response);
2228: foreach my $match (@matches) {
2229: my ($key,$value) = split(/=/,$match);
2230: $results{&unescape($key)} = &thaw_unescape($value);
2231: }
2232: }
2233: }
2234: }
2235: my %userinfo;
2236: if (ref($results{$uname}) eq 'HASH') {
2237: %userinfo = %{$results{$uname}};
2238: }
2239: return ($outcome,%userinfo);
2240: }
2241:
1.1290 raeburn 2242: sub get_multiple_instusers {
2243: my ($udom,$users,$caller) = @_;
2244: my ($outcome,$results);
2245: if (ref($users) eq 'HASH') {
2246: my $count = keys(%{$users});
2247: my $requested = &freeze_escape($users);
2248: my $homeserver = &domain($udom,'primary');
2249: if ($homeserver ne '') {
2250: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
2251: my $host=&hostname($homeserver);
2252: if ($queryid !~/^\Q$host\E\_/) {
2253: &logthis('get_multiple_instusers invalid queryid: '.$queryid.
2254: ' for host: '.$homeserver.'in domain '.$udom);
2255: return ($outcome,$results);
2256: }
2257: my $response = &get_query_reply($queryid);
2258: my $maxtries = 5;
2259: if ($count > 100) {
2260: $maxtries = 1+int($count/20);
2261: }
2262: my $tries = 1;
2263: while (($response=~/^timeout/) && ($tries <= $maxtries)) {
2264: $response = &get_query_reply($queryid);
2265: $tries ++;
2266: }
2267: if ($response eq '') {
2268: $results = {};
2269: foreach my $key (keys(%{$users})) {
2270: my ($uname,$id);
2271: if ($caller eq 'id') {
2272: $id = $key;
2273: } else {
2274: $uname = $key;
2275: }
2276: my ($resp,%info) = &get_instuser($udom,$uname,$id);
1.1291 raeburn 2277: $outcome = $resp;
1.1290 raeburn 2278: if ($resp eq 'ok') {
2279: %{$results} = (%{$results}, %info);
2280: } else {
2281: last;
2282: }
2283: }
2284: } elsif(!&error($response) && ($response ne 'refused')) {
2285: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) {
2286: $outcome = $response;
2287: } else {
1.1291 raeburn 2288: ($outcome,my $userdata) = split(/=/,$response,2);
1.1290 raeburn 2289: if ($outcome eq 'ok') {
2290: $results = &thaw_unescape($userdata);
2291: }
2292: }
2293: }
2294: }
2295: }
2296: return ($outcome,$results);
2297: }
2298:
1.912 raeburn 2299: sub inst_rulecheck {
1.923 raeburn 2300: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 2301: my %returnhash;
2302: if ($udom ne '') {
2303: if (ref($rules) eq 'ARRAY') {
2304: @{$rules} = map {&escape($_);} (@{$rules});
2305: my $rulestr = join(':',@{$rules});
2306: my $homeserver=&domain($udom,'primary');
2307: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2308: my $response;
2309: if ($item eq 'username') {
2310: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
2311: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 2312: $homeserver));
1.923 raeburn 2313: } elsif ($item eq 'id') {
2314: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
2315: ':'.&escape($id).':'.$rulestr,
2316: $homeserver));
1.945 raeburn 2317: } elsif ($item eq 'selfcreate') {
2318: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 2319: &escape($udom).':'.&escape($uname).
2320: ':'.$rulestr,$homeserver));
1.923 raeburn 2321: }
1.912 raeburn 2322: if ($response ne 'refused') {
2323: my @pairs=split(/\&/,$response);
2324: foreach my $item (@pairs) {
2325: my ($key,$value)=split(/=/,$item,2);
2326: $key = &unescape($key);
2327: next if ($key =~ /^error: 2 /);
2328: $returnhash{$key}=&thaw_unescape($value);
2329: }
2330: }
2331: }
2332: }
2333: }
2334: return %returnhash;
2335: }
2336:
2337: sub inst_userrules {
1.923 raeburn 2338: my ($udom,$check) = @_;
1.912 raeburn 2339: my (%ruleshash,@ruleorder);
2340: if ($udom ne '') {
2341: my $homeserver=&domain($udom,'primary');
2342: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2343: my $response;
2344: if ($check eq 'id') {
2345: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 2346: $homeserver);
1.943 raeburn 2347: } elsif ($check eq 'email') {
2348: $response=&reply('instemailrules:'.&escape($udom),
2349: $homeserver);
1.923 raeburn 2350: } else {
2351: $response=&reply('instuserrules:'.&escape($udom),
2352: $homeserver);
2353: }
1.912 raeburn 2354: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 2355: ($response ne 'unknown_cmd') &&
1.912 raeburn 2356: ($response ne 'no_such_host')) {
2357: my ($hashitems,$orderitems) = split(/:/,$response);
2358: my @pairs=split(/\&/,$hashitems);
2359: foreach my $item (@pairs) {
2360: my ($key,$value)=split(/=/,$item,2);
2361: $key = &unescape($key);
2362: next if ($key =~ /^error: 2 /);
2363: $ruleshash{$key}=&thaw_unescape($value);
2364: }
2365: my @esc_order = split(/\&/,$orderitems);
2366: foreach my $item (@esc_order) {
2367: push(@ruleorder,&unescape($item));
2368: }
2369: }
2370: }
2371: }
2372: return (\%ruleshash,\@ruleorder);
2373: }
2374:
1.976 raeburn 2375: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 2376:
2377: sub get_domain_defaults {
1.1240 raeburn 2378: my ($domain,$ignore_cache) = @_;
1.1242 raeburn 2379: return if (($domain eq '') || ($domain eq 'public'));
1.943 raeburn 2380: my $cachetime = 60*60*24;
1.1240 raeburn 2381: unless ($ignore_cache) {
2382: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
2383: if (defined($cached)) {
2384: if (ref($result) eq 'HASH') {
2385: return %{$result};
2386: }
1.943 raeburn 2387: }
2388: }
2389: my %domdefaults;
2390: my %domconfig =
1.989 raeburn 2391: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 2392: 'requestcourses','inststatus',
1.1183 raeburn 2393: 'coursedefaults','usersessions',
1.1258 raeburn 2394: 'requestauthor','selfenrollment',
1.1320 raeburn 2395: 'coursecategories','ssl','autoenroll',
1.1332 raeburn 2396: 'trust','helpsettings'],$domain);
1.1305 raeburn 2397: my @coursetypes = ('official','unofficial','community','textbook','placement');
1.943 raeburn 2398: if (ref($domconfig{'defaults'}) eq 'HASH') {
2399: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2400: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2401: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 2402: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 2403: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 2404: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.1340 raeburn 2405: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
2406: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
2407: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
1.943 raeburn 2408: } else {
2409: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2410: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2411: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2412: }
1.976 raeburn 2413: if (ref($domconfig{'quotas'}) eq 'HASH') {
2414: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2415: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2416: } else {
2417: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1.1229 raeburn 2418: }
1.1177 raeburn 2419: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 2420: foreach my $item (@usertools) {
2421: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2422: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2423: }
2424: }
1.1229 raeburn 2425: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2426: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2427: }
1.976 raeburn 2428: }
1.985 raeburn 2429: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1305 raeburn 2430: foreach my $item ('official','unofficial','community','textbook','placement') {
1.985 raeburn 2431: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2432: }
2433: }
1.1183 raeburn 2434: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2435: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2436: }
1.989 raeburn 2437: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1.1256 raeburn 2438: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
1.989 raeburn 2439: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2440: }
2441: }
1.1047 raeburn 2442: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1.1230 raeburn 2443: $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
1.1277 raeburn 2444: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
2445: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
2446: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
2447: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
2448: }
1.1254 raeburn 2449: foreach my $type (@coursetypes) {
2450: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2451: unless ($type eq 'community') {
2452: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2453: }
2454: }
2455: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2456: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2457: }
1.1277 raeburn 2458: if ($domdefaults{'postsubmit'} eq 'on') {
2459: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
2460: $domdefaults{$type.'postsubtimeout'} =
2461: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
2462: }
2463: }
1.1230 raeburn 2464: }
1.1286 raeburn 2465: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
2466: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
2467: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
2468: if (@clonecodes) {
2469: $domdefaults{'canclone'} = join('+',@clonecodes);
2470: }
2471: }
2472: } elsif ($domconfig{'coursedefaults'}{'canclone'}) {
2473: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
2474: }
1.1356 raeburn 2475: if ($domconfig{'coursedefaults'}{'texengine'}) {
2476: $domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
2477: }
1.1047 raeburn 2478: }
1.1073 raeburn 2479: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2480: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2481: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2482: }
2483: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2484: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2485: }
1.1279 raeburn 2486: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
2487: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
2488: }
1.1073 raeburn 2489: }
1.1254 raeburn 2490: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2491: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2492: my @settings = ('types','registered','enroll_dates','access_dates','section',
2493: 'approval','limit');
2494: foreach my $type (@coursetypes) {
2495: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2496: my @mgrdc = ();
2497: foreach my $item (@settings) {
2498: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2499: push(@mgrdc,$item);
2500: }
2501: }
2502: if (@mgrdc) {
2503: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2504: }
2505: }
2506: }
2507: }
2508: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2509: foreach my $type (@coursetypes) {
2510: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2511: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2512: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2513: }
2514: }
2515: }
2516: }
2517: }
1.1258 raeburn 2518: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2519: $domdefaults{'catauth'} = 'std';
2520: $domdefaults{'catunauth'} = 'std';
2521: if ($domconfig{'coursecategories'}{'auth'}) {
2522: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2523: }
2524: if ($domconfig{'coursecategories'}{'unauth'}) {
2525: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2526: }
2527: }
1.1315 raeburn 2528: if (ref($domconfig{'ssl'}) eq 'HASH') {
2529: if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') {
2530: $domdefaults{'replication'} = $domconfig{'ssl'}{'replication'};
2531: }
1.1338 raeburn 2532: if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') {
2533: $domdefaults{'connect'} = $domconfig{'ssl'}{'connto'};
2534: }
2535: if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') {
2536: $domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'};
1.1315 raeburn 2537: }
2538: }
1.1320 raeburn 2539: if (ref($domconfig{'trust'}) eq 'HASH') {
2540: my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg);
2541: foreach my $prefix (@prefixes) {
2542: if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') {
2543: $domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix};
2544: }
2545: }
2546: }
1.1314 raeburn 2547: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
2548: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
2549: }
1.1332 raeburn 2550: if (ref($domconfig{'helpsettings'}) eq 'HASH') {
2551: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
2552: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
2553: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
2554: }
2555: }
1.1219 raeburn 2556: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
1.943 raeburn 2557: return %domdefaults;
2558: }
2559:
1.1311 raeburn 2560: sub course_portal_url {
2561: my ($cnum,$cdom) = @_;
2562: my $chome = &homeserver($cnum,$cdom);
2563: my $hostname = &hostname($chome);
2564: my $protocol = $protocol{$chome};
2565: $protocol = 'http' if ($protocol ne 'https');
2566: my %domdefaults = &get_domain_defaults($cdom);
2567: my $firsturl;
2568: if ($domdefaults{'portal_def'}) {
2569: $firsturl = $domdefaults{'portal_def'};
2570: } else {
2571: $firsturl = $protocol.'://'.$hostname;
2572: }
2573: return $firsturl;
2574: }
2575:
1.344 www 2576: # --------------------------------------------------- Assign a key to a student
2577:
2578: sub assign_access_key {
1.364 www 2579: #
2580: # a valid key looks like uname:udom#comments
2581: # comments are being appended
2582: #
1.498 www 2583: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2584: $kdom=
1.620 albertel 2585: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2586: $knum=
1.620 albertel 2587: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2588: $cdom=
1.620 albertel 2589: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2590: $cnum=
1.620 albertel 2591: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2592: $udom=$env{'user.name'} unless (defined($udom));
2593: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2594: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2595: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2596: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2597: # assigned to this person
2598: # - this should not happen,
1.345 www 2599: # unless something went wrong
2600: # the first time around
2601: # ready to assign
1.364 www 2602: $logentry=$1.'; '.$logentry;
1.496 www 2603: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2604: $kdom,$knum) eq 'ok') {
1.345 www 2605: # key now belongs to user
1.346 www 2606: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2607: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2608: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2609: return 'ok';
2610: } else {
2611: return
2612: 'error: Count not permanently assign key, will need to be re-entered later.';
2613: }
2614: } else {
2615: return 'error: Could not assign key, try again later.';
2616: }
1.364 www 2617: } elsif (!$existing{$ckey}) {
1.345 www 2618: # the key does not exist
2619: return 'error: The key does not exist';
2620: } else {
2621: # the key is somebody else's
2622: return 'error: The key is already in use';
2623: }
1.344 www 2624: }
2625:
1.364 www 2626: # ------------------------------------------ put an additional comment on a key
2627:
2628: sub comment_access_key {
2629: #
2630: # a valid key looks like uname:udom#comments
2631: # comments are being appended
2632: #
2633: my ($ckey,$cdom,$cnum,$logentry)=@_;
2634: $cdom=
1.620 albertel 2635: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2636: $cnum=
1.620 albertel 2637: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2638: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2639: if ($existing{$ckey}) {
2640: $existing{$ckey}.='; '.$logentry;
2641: # ready to assign
1.367 www 2642: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2643: $cdom,$cnum) eq 'ok') {
2644: return 'ok';
2645: } else {
2646: return 'error: Count not store comment.';
2647: }
2648: } else {
2649: # the key does not exist
2650: return 'error: The key does not exist';
2651: }
2652: }
2653:
1.344 www 2654: # ------------------------------------------------------ Generate a set of keys
2655:
2656: sub generate_access_keys {
1.364 www 2657: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2658: $cdom=
1.620 albertel 2659: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2660: $cnum=
1.620 albertel 2661: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2662: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2663: unless (($cdom) && ($cnum)) { return 0; }
2664: if ($number>10000) { return 0; }
2665: sleep(2); # make sure don't get same seed twice
2666: srand(time()^($$+($$<<15))); # from "Programming Perl"
2667: my $total=0;
2668: for (my $i=1;$i<=$number;$i++) {
2669: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2670: sprintf("%lx",int(100000*rand)).'-'.
2671: sprintf("%lx",int(100000*rand));
2672: $newkey=~s/1/g/g; # folks mix up 1 and l
2673: $newkey=~s/0/h/g; # and also 0 and O
2674: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2675: if ($existing{$newkey}) {
2676: $i--;
2677: } else {
1.364 www 2678: if (&put('accesskeys',
2679: { $newkey => '# generated '.localtime().
1.620 albertel 2680: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2681: '; '.$logentry },
2682: $cdom,$cnum) eq 'ok') {
1.344 www 2683: $total++;
2684: }
2685: }
2686: }
1.620 albertel 2687: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2688: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2689: return $total;
2690: }
2691:
2692: # ------------------------------------------------------- Validate an accesskey
2693:
2694: sub validate_access_key {
2695: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2696: $cdom=
1.620 albertel 2697: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2698: $cnum=
1.620 albertel 2699: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2700: $udom=$env{'user.domain'} unless (defined($udom));
2701: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2702: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2703: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2704: }
2705:
2706: # ------------------------------------- Find the section of student in a course
1.652 albertel 2707: sub devalidate_getsection_cache {
2708: my ($udom,$unam,$courseid)=@_;
2709: my $hashid="$udom:$unam:$courseid";
2710: &devalidate_cache_new('getsection',$hashid);
2711: }
1.298 matthew 2712:
1.815 albertel 2713: sub courseid_to_courseurl {
2714: my ($courseid) = @_;
2715: #already url style courseid
2716: return $courseid if ($courseid =~ m{^/});
2717:
2718: if (exists($env{'course.'.$courseid.'.num'})) {
2719: my $cnum = $env{'course.'.$courseid.'.num'};
2720: my $cdom = $env{'course.'.$courseid.'.domain'};
2721: return "/$cdom/$cnum";
2722: }
2723:
2724: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2725: if (exists($courseinfo{'num'})) {
2726: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2727: }
2728:
2729: return undef;
2730: }
2731:
1.298 matthew 2732: sub getsection {
2733: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2734: my $cachetime=1800;
1.551 albertel 2735:
2736: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2737: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2738: if (defined($cached)) { return $result; }
2739:
1.298 matthew 2740: my %Pending;
2741: my %Expired;
2742: #
2743: # Each role can either have not started yet (pending), be active,
2744: # or have expired.
2745: #
2746: # If there is an active role, we are done.
2747: #
2748: # If there is more than one role which has not started yet,
2749: # choose the one which will start sooner
2750: # If there is one role which has not started yet, return it.
2751: #
2752: # If there is more than one expired role, choose the one which ended last.
2753: # If there is a role which has expired, return it.
2754: #
1.815 albertel 2755: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2756: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2757: foreach my $key (keys(%roleshash)) {
1.479 albertel 2758: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2759: my $section=$1;
2760: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2761: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2762: my $now=time;
1.548 albertel 2763: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2764: $Expired{$end}=$section;
2765: next;
2766: }
1.548 albertel 2767: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2768: $Pending{$start}=$section;
2769: next;
2770: }
1.599 albertel 2771: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2772: }
2773: #
2774: # Presumedly there will be few matching roles from the above
2775: # loop and the sorting time will be negligible.
2776: if (scalar(keys(%Pending))) {
2777: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2778: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2779: }
2780: if (scalar(keys(%Expired))) {
2781: my @sorted = sort {$a <=> $b} keys(%Expired);
2782: my $time = pop(@sorted);
1.599 albertel 2783: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2784: }
1.599 albertel 2785: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2786: }
1.70 www 2787:
1.599 albertel 2788: sub save_cache {
2789: &purge_remembered();
1.722 albertel 2790: #&Apache::loncommon::validate_page();
1.620 albertel 2791: undef(%env);
1.780 albertel 2792: undef($env_loaded);
1.599 albertel 2793: }
1.452 albertel 2794:
1.599 albertel 2795: my $to_remember=-1;
2796: my %remembered;
2797: my %accessed;
2798: my $kicks=0;
2799: my $hits=0;
1.849 albertel 2800: sub make_key {
2801: my ($name,$id) = @_;
1.872 albertel 2802: if (length($id) > 65
2803: && length(&escape($id)) > 200) {
2804: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2805: }
1.849 albertel 2806: return &escape($name.':'.$id);
2807: }
2808:
1.599 albertel 2809: sub devalidate_cache_new {
2810: my ($name,$id,$debug) = @_;
2811: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.1319 damieng 2812: my $remembered_id=$name.':'.$id;
1.849 albertel 2813: $id=&make_key($name,$id);
1.599 albertel 2814: $memcache->delete($id);
1.1319 damieng 2815: delete($remembered{$remembered_id});
2816: delete($accessed{$remembered_id});
1.599 albertel 2817: }
2818:
2819: sub is_cached_new {
2820: my ($name,$id,$debug) = @_;
1.1319 damieng 2821: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible
2822: if (exists($remembered{$remembered_id})) {
2823: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
2824: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2825: $hits++;
1.1319 damieng 2826: return ($remembered{$remembered_id},1);
1.599 albertel 2827: }
1.1319 damieng 2828: $id=&make_key($name,$id);
1.599 albertel 2829: my $value = $memcache->get($id);
2830: if (!(defined($value))) {
2831: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2832: return (undef,undef);
1.416 albertel 2833: }
1.599 albertel 2834: if ($value eq '__undef__') {
2835: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2836: $value=undef;
2837: }
1.1319 damieng 2838: &make_room($remembered_id,$value,$debug);
1.599 albertel 2839: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2840: return ($value,1);
2841: }
2842:
2843: sub do_cache_new {
2844: my ($name,$id,$value,$time,$debug) = @_;
1.1319 damieng 2845: my $remembered_id=$name.':'.$id;
1.849 albertel 2846: $id=&make_key($name,$id);
1.599 albertel 2847: my $setvalue=$value;
2848: if (!defined($setvalue)) {
2849: $setvalue='__undef__';
2850: }
1.623 albertel 2851: if (!defined($time) ) {
2852: $time=600;
2853: }
1.599 albertel 2854: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2855: my $result = $memcache->set($id,$setvalue,$time);
2856: if (! $result) {
1.872 albertel 2857: &logthis("caching of id -> $id failed");
1.910 albertel 2858: $memcache->disconnect_all();
1.872 albertel 2859: }
1.600 albertel 2860: # need to make a copy of $value
1.1319 damieng 2861: &make_room($remembered_id,$value,$debug);
1.599 albertel 2862: return $value;
2863: }
2864:
2865: sub make_room {
1.1319 damieng 2866: my ($remembered_id,$value,$debug)=@_;
1.919 albertel 2867:
1.1319 damieng 2868: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)
1.919 albertel 2869: : $value;
1.599 albertel 2870: if ($to_remember<0) { return; }
1.1319 damieng 2871: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2872: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2873: my $to_kick;
2874: my $max_time=0;
2875: foreach my $other (keys(%accessed)) {
2876: if (&tv_interval($accessed{$other}) > $max_time) {
2877: $to_kick=$other;
2878: $max_time=&tv_interval($accessed{$other});
2879: }
2880: }
2881: delete($remembered{$to_kick});
2882: delete($accessed{$to_kick});
2883: $kicks++;
2884: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2885: return;
2886: }
2887:
1.599 albertel 2888: sub purge_remembered {
1.604 albertel 2889: #&logthis("Tossing ".scalar(keys(%remembered)));
2890: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2891: undef(%remembered);
2892: undef(%accessed);
1.428 albertel 2893: }
1.70 www 2894: # ------------------------------------- Read an entry from a user's environment
2895:
2896: sub userenvironment {
2897: my ($udom,$unam,@what)=@_;
1.976 raeburn 2898: my $items;
2899: foreach my $item (@what) {
2900: $items.=&escape($item).'&';
2901: }
2902: $items=~s/\&$//;
1.70 www 2903: my %returnhash=();
1.1009 raeburn 2904: my $uhome = &homeserver($unam,$udom);
2905: unless ($uhome eq 'no_host') {
2906: my @answer=split(/\&/,
2907: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2908: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2909: return %returnhash;
2910: }
1.1009 raeburn 2911: my $i;
2912: for ($i=0;$i<=$#what;$i++) {
2913: $returnhash{$what[$i]}=&unescape($answer[$i]);
2914: }
1.70 www 2915: }
2916: return %returnhash;
1.1 albertel 2917: }
2918:
1.617 albertel 2919: # ---------------------------------------------------------- Get a studentphoto
2920: sub studentphoto {
2921: my ($udom,$unam,$ext) = @_;
2922: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2923: if (defined($env{'request.course.id'})) {
1.708 raeburn 2924: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2925: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2926: return(&retrievestudentphoto($udom,$unam,$ext));
2927: } else {
2928: my ($result,$perm_reqd)=
1.707 albertel 2929: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2930: if ($result eq 'ok') {
2931: if (!($perm_reqd eq 'yes')) {
2932: return(&retrievestudentphoto($udom,$unam,$ext));
2933: }
2934: }
2935: }
2936: }
2937: } else {
2938: my ($result,$perm_reqd) =
1.707 albertel 2939: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2940: if ($result eq 'ok') {
2941: if (!($perm_reqd eq 'yes')) {
2942: return(&retrievestudentphoto($udom,$unam,$ext));
2943: }
2944: }
2945: }
2946: return '/adm/lonKaputt/lonlogo_broken.gif';
2947: }
2948:
2949: sub retrievestudentphoto {
2950: my ($udom,$unam,$ext,$type) = @_;
2951: my $home=&Apache::lonnet::homeserver($unam,$udom);
2952: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2953: if ($ret eq 'ok') {
2954: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2955: if ($type eq 'thumbnail') {
2956: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2957: }
2958: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2959: return $tokenurl;
2960: } else {
2961: if ($type eq 'thumbnail') {
2962: return '/adm/lonKaputt/genericstudent_tn.gif';
2963: } else {
2964: return '/adm/lonKaputt/lonlogo_broken.gif';
2965: }
1.617 albertel 2966: }
2967: }
2968:
1.263 www 2969: # -------------------------------------------------------------------- New chat
2970:
2971: sub chatsend {
1.724 raeburn 2972: my ($newentry,$anon,$group)=@_;
1.620 albertel 2973: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2974: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2975: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2976: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2977: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2978: &escape($newentry)).':'.$group,$chome);
1.292 www 2979: }
2980:
2981: # ------------------------------------------ Find current version of a resource
2982:
2983: sub getversion {
2984: my $fname=&clutter(shift);
1.1189 raeburn 2985: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2986: return ¤tversion(&filelocation('',$fname));
2987: }
2988:
2989: sub currentversion {
2990: my $fname=shift;
2991: my $author=$fname;
2992: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2993: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2994: my $home=&homeserver($uname,$udom);
1.292 www 2995: if ($home eq 'no_host') {
2996: return -1;
2997: }
1.1112 www 2998: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2999: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3000: return -1;
3001: }
1.1112 www 3002: return $answer;
1.263 www 3003: }
3004:
1.1111 www 3005: #
3006: # Return special version number of resource if set by override, empty otherwise
3007: #
3008: sub usedversion {
3009: my $fname=shift;
3010: unless ($fname) { $fname=$env{'request.uri'}; }
3011: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
3012: if ($urlversion) { return $urlversion; }
3013: return '';
3014: }
3015:
1.1 albertel 3016: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 3017:
1.1 albertel 3018: sub subscribe {
3019: my $fname=shift;
1.761 raeburn 3020: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 3021: $fname=~s/[\n\r]//g;
1.1 albertel 3022: my $author=$fname;
3023: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3024: my ($udom,$uname)=split(/\//,$author);
3025: my $home=homeserver($uname,$udom);
1.335 albertel 3026: if ($home eq 'no_host') {
3027: return 'not_found';
1.1 albertel 3028: }
3029: my $answer=reply("sub:$fname",$home);
1.64 www 3030: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
3031: $answer.=' by '.$home;
3032: }
1.1 albertel 3033: return $answer;
3034: }
3035:
1.8 www 3036: # -------------------------------------------------------------- Replicate file
3037:
3038: sub repcopy {
3039: my $filename=shift;
1.23 www 3040: $filename=~s/\/+/\//g;
1.1142 raeburn 3041: my $londocroot = $perlvar{'lonDocRoot'};
3042: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 3043: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 3044: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
3045: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 3046: return &repcopy_userfile($filename);
3047: }
1.532 albertel 3048: $filename=~s/[\n\r]//g;
1.8 www 3049: my $transname="$filename.in.transfer";
1.828 www 3050: # FIXME: this should flock
1.607 raeburn 3051: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 3052: my $remoteurl=subscribe($filename);
1.64 www 3053: if ($remoteurl =~ /^con_lost by/) {
3054: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 3055: return 'unavailable';
1.8 www 3056: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 3057: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 3058: return 'not_found';
1.64 www 3059: } elsif ($remoteurl =~ /^rejected by/) {
3060: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 3061: return 'forbidden';
1.20 www 3062: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 3063: return 'ok';
1.8 www 3064: } else {
1.290 www 3065: my $author=$filename;
3066: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
3067: my ($udom,$uname)=split(/\//,$author);
3068: my $home=homeserver($uname,$udom);
3069: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 3070: my @parts=split(/\//,$filename);
3071: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 3072: if ($path ne "$londocroot/res") {
1.8 www 3073: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 3074: return 'bad_request';
1.8 www 3075: }
3076: my $count;
3077: for ($count=5;$count<$#parts;$count++) {
3078: $path.="/$parts[$count]";
3079: if ((-e $path)!=1) {
3080: mkdir($path,0777);
3081: }
3082: }
3083: my $request=new HTTP::Request('GET',"$remoteurl");
1.1345 raeburn 3084: my $response;
3085: if ($remoteurl =~ m{/raw/}) {
3086: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1);
3087: } else {
3088: $response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1);
3089: }
1.8 www 3090: if ($response->is_error()) {
3091: unlink($transname);
3092: my $message=$response->status_line;
1.672 albertel 3093: &logthis("<font color=\"blue\">WARNING:"
1.12 www 3094: ." LWP get: $message: $filename</font>");
1.607 raeburn 3095: return 'unavailable';
1.8 www 3096: } else {
1.16 www 3097: if ($remoteurl!~/\.meta$/) {
3098: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1.1345 raeburn 3099: my $mresponse;
3100: if ($remoteurl =~ m{/raw/}) {
3101: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1);
3102: } else {
3103: $mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1);
3104: }
1.16 www 3105: if ($mresponse->is_error()) {
3106: unlink($filename.'.meta');
3107: &logthis(
1.672 albertel 3108: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 3109: }
3110: }
1.8 www 3111: rename($transname,$filename);
1.607 raeburn 3112: return 'ok';
1.8 www 3113: }
1.290 www 3114: }
1.8 www 3115: }
1.330 www 3116: }
3117:
3118: # ------------------------------------------------ Get server side include body
3119: sub ssi_body {
1.381 albertel 3120: my ($filelink,%form)=@_;
1.606 matthew 3121: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
3122: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
3123: }
1.953 www 3124: my $output='';
3125: my $response;
1.980 raeburn 3126: if ($filelink=~/^https?\:/) {
1.954 raeburn 3127: ($output,$response)=&externalssi($filelink);
1.953 www 3128: } else {
1.1004 droeschl 3129: $filelink .= $filelink=~/\?/ ? '&' : '?';
3130: $filelink .= 'inhibitmenu=yes';
1.953 www 3131: ($output,$response)=&ssi($filelink,%form);
3132: }
1.778 albertel 3133: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 3134: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 3135: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 3136: if (wantarray) {
3137: return ($output, $response);
3138: } else {
3139: return $output;
3140: }
1.8 www 3141: }
3142:
1.15 www 3143: # --------------------------------------------------------- Server Side Include
3144:
1.782 albertel 3145: sub absolute_url {
3146: my ($host_name) = @_;
3147: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
3148: if ($host_name eq '') {
3149: $host_name = $ENV{'SERVER_NAME'};
3150: }
3151: return $protocol.$host_name;
3152: }
3153:
1.942 foxr 3154: #
3155: # Server side include.
3156: # Parameters:
3157: # fn Possibly encrypted resource name/id.
3158: # form Hash that describes how the rendering should be done
3159: # and other things.
1.944 foxr 3160: # Returns:
1.950 raeburn 3161: # Scalar context: The content of the response.
3162: # Array context: 2 element list of the content and the full response object.
1.942 foxr 3163: #
1.15 www 3164: sub ssi {
3165:
1.944 foxr 3166: my ($fn,%form)=@_;
1.23 www 3167: my $request;
1.711 albertel 3168:
3169: $form{'no_update_last_known'}=1;
1.895 albertel 3170: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 3171: if (%form) {
1.782 albertel 3172: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1272 droeschl 3173: $request->content(join('&',map {
3174: my $name = escape($_);
3175: "$name=" . ( ref($form{$_}) eq 'ARRAY'
3176: ? join("&$name=", map {escape($_) } @{$form{$_}})
3177: : &escape($form{$_}) );
3178: } keys(%form)));
1.23 www 3179: } else {
1.782 albertel 3180: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 3181: }
3182:
1.15 www 3183: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1345 raeburn 3184: my $lonhost = $perlvar{'lonHostID'};
3185: my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar);
1.1182 foxr 3186:
1.944 foxr 3187: if (wantarray) {
1.1345 raeburn 3188: return ($response->content, $response);
1.944 foxr 3189: } else {
1.1345 raeburn 3190: return $response->content;
1.942 foxr 3191: }
1.324 www 3192: }
3193:
3194: sub externalssi {
3195: my ($url)=@_;
3196: my $request=new HTTP::Request('GET',$url);
1.1345 raeburn 3197: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar);
1.954 raeburn 3198: if (wantarray) {
3199: return ($response->content, $response);
3200: } else {
3201: return $response->content;
3202: }
1.15 www 3203: }
1.254 www 3204:
1.1354 raeburn 3205:
3206: # If the local copy of a replicated resource is outdated, trigger a
3207: # connection from the homeserver to flush the delayed queue. If no update
3208: # happens, remove local copies of outdated resource (and corresponding
3209: # metadata file).
3210:
1.1352 raeburn 3211: sub remove_stale_resfile {
3212: my ($url) = @_;
1.1354 raeburn 3213: my $removed;
1.1352 raeburn 3214: if ($url=~m{^/res/($match_domain)/($match_username)/}) {
3215: my $audom = $1;
3216: my $auname = $2;
1.1353 raeburn 3217: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) {
1.1352 raeburn 3218: my $homeserver = &homeserver($auname,$audom);
3219: unless (($homeserver eq 'no_host') ||
3220: (grep { $_ eq $homeserver } ¤t_machine_ids())) {
3221: my $fname = &filelocation('',$url);
3222: if (-e $fname) {
3223: my $protocol = $protocol{$homeserver};
3224: $protocol = 'http' if ($protocol ne 'https');
3225: my $hostname = &hostname($homeserver);
3226: if ($hostname) {
3227: my $uri = &declutter($url);
3228: my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri);
3229: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1);
3230: if ($response->is_success()) {
3231: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
3232: my $locmodtime = (stat($fname))[9];
3233: if ($locmodtime < $remmodtime) {
1.1354 raeburn 3234: my $stale;
3235: my $answer = &reply('pong',$homeserver);
3236: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
3237: sleep(0.2);
3238: $locmodtime = (stat($fname))[9];
3239: if ($locmodtime < $remmodtime) {
3240: my $posstransfer = $fname.'.in.transfer';
3241: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
3242: $removed = 1;
3243: } else {
3244: $stale = 1;
3245: }
3246: } else {
3247: $removed = 1;
3248: }
3249: } else {
3250: $stale = 1;
3251: }
3252: if ($stale) {
3253: unlink($fname);
3254: if ($uri!~/\.meta$/) {
3255: unlink($fname.'.meta');
3256: }
3257: &reply("unsub:$fname",$homeserver);
3258: $removed = 1;
1.1352 raeburn 3259: }
3260: }
3261: }
3262: }
3263: }
3264: }
3265: }
3266: }
1.1354 raeburn 3267: return $removed;
1.1352 raeburn 3268: }
3269:
1.492 albertel 3270: # -------------------------------- Allow a /uploaded/ URI to be vouched for
3271:
3272: sub allowuploaded {
3273: my ($srcurl,$url)=@_;
3274: $url=&clutter(&declutter($url));
3275: my $dir=$url;
3276: $dir=~s/\/[^\/]+$//;
3277: my %httpref=();
3278: my $httpurl=&hreflocation('',$url);
3279: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 3280: &Apache::lonnet::appenv(\%httpref);
1.254 www 3281: }
1.477 raeburn 3282:
1.1193 raeburn 3283: #
3284: # Determine if the current user should be able to edit a particular resource,
3285: # when viewing in course context.
3286: # (a) When viewing resource used to determine if "Edit" item is included in
3287: # Functions.
3288: # (b) When displaying folder contents in course editor, used to determine if
3289: # "Edit" link will be displayed alongside resource.
3290: #
1.1196 raeburn 3291: # input: six args -- filename (decluttered), course number, course domain,
3292: # url, symb (if registered) and group (if this is a group
3293: # item -- e.g., bulletin board, group page etc.).
3294: # output: array of five scalars --
1.1193 raeburn 3295: # $cfile -- url for file editing if editable on current server
3296: # $home -- homeserver of resource (i.e., for author if published,
3297: # or course if uploaded.).
3298: # $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 3299: # $forceedit -- 1 if icon/link should be to go to edit mode
3300: # $forceview -- 1 if icon/link should be to go to view mode
1.1193 raeburn 3301: #
3302:
3303: sub can_edit_resource {
1.1194 raeburn 3304: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
3305: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
3306: #
3307: # For aboutme pages user can only edit his/her own.
3308: #
1.1199 raeburn 3309: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
1.1194 raeburn 3310: my ($sdom,$sname) = ($1,$2);
3311: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
3312: $home = $env{'user.home'};
3313: $cfile = $resurl;
3314: if ($env{'form.forceedit'}) {
3315: $forceview = 1;
3316: } else {
3317: $forceedit = 1;
3318: }
3319: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3320: } else {
3321: return;
3322: }
3323: }
3324:
3325: if ($env{'request.course.id'}) {
3326: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
3327: if ($group ne '') {
3328: # if this is a group homepage or group bulletin board, check group privs
3329: my $allowed = 0;
1.1197 raeburn 3330: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
3331: if ((&allowed('mdg',$env{'request.course.id'}.
1.1198 raeburn 3332: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
1.1194 raeburn 3333: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3334: $allowed = 1;
3335: }
1.1197 raeburn 3336: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
3337: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3338: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
1.1194 raeburn 3339: $allowed = 1;
3340: }
3341: }
3342: if ($allowed) {
3343: $home=&homeserver($cnum,$cdom);
3344: if ($env{'form.forceedit'}) {
3345: $forceview = 1;
3346: } else {
3347: $forceedit = 1;
3348: }
3349: $cfile = $resurl;
3350: } else {
3351: return;
3352: }
3353: } else {
1.1208 raeburn 3354: if ($resurl =~ m{^/?adm/viewclasslist$}) {
3355: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
3356: return;
3357: }
3358: } elsif (!$crsedit) {
1.1194 raeburn 3359: #
3360: # No edit allowed where CC has switched to student role.
3361: #
3362: return;
3363: }
3364: }
3365: }
3366:
1.1193 raeburn 3367: if ($file ne '') {
3368: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
1.1194 raeburn 3369: if (&is_course_upload($file,$cnum,$cdom)) {
3370: $uploaded = 1;
3371: $incourse = 1;
1.1193 raeburn 3372: if ($file =~/\.(htm|html|css|js|txt)$/) {
3373: $cfile = &hreflocation('',$file);
1.1201 raeburn 3374: if ($env{'form.forceedit'}) {
3375: $forceview = 1;
3376: } else {
3377: $forceedit = 1;
3378: }
1.1194 raeburn 3379: }
3380: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
3381: $incourse = 1;
3382: if ($env{'form.forceedit'}) {
3383: $forceview = 1;
3384: } else {
3385: $forceedit = 1;
3386: }
3387: $cfile = $resurl;
3388: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
3389: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
3390: $incourse = 1;
3391: if ($env{'form.forceedit'}) {
3392: $forceview = 1;
3393: } else {
3394: $forceedit = 1;
3395: }
3396: $cfile = $resurl;
1.1199 raeburn 3397: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
1.1194 raeburn 3398: $incourse = 1;
3399: $cfile = $resurl.'/smpedit';
1.1199 raeburn 3400: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
1.1194 raeburn 3401: $incourse = 1;
1.1199 raeburn 3402: if ($env{'form.forceedit'}) {
3403: $forceview = 1;
3404: } else {
3405: $forceedit = 1;
3406: }
3407: $cfile = $resurl;
1.1343 raeburn 3408: } elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) {
1.1298 raeburn 3409: $incourse = 1;
3410: if ($env{'form.forceedit'}) {
3411: $forceview = 1;
3412: } else {
3413: $forceedit = 1;
3414: }
3415: $cfile = $resurl;
1.1208 raeburn 3416: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3417: $incourse = 1;
3418: if ($env{'form.forceedit'}) {
3419: $forceview = 1;
3420: } else {
3421: $forceedit = 1;
3422: }
3423: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1194 raeburn 3424: }
3425: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
3426: my $template = '/res/lib/templates/simpleproblem.problem';
3427: if (&is_on_map($template)) {
3428: $incourse = 1;
3429: $forceview = 1;
3430: $cfile = $template;
1.1193 raeburn 3431: }
1.1199 raeburn 3432: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
3433: $incourse = 1;
3434: if ($env{'form.forceedit'}) {
3435: $forceview = 1;
3436: } else {
3437: $forceedit = 1;
3438: }
3439: $cfile = $resurl;
1.1343 raeburn 3440: } elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
1.1298 raeburn 3441: $incourse = 1;
3442: if ($env{'form.forceedit'}) {
3443: $forceview = 1;
3444: } else {
3445: $forceedit = 1;
3446: }
3447: $cfile = $resurl;
1.1199 raeburn 3448: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
3449: $incourse = 1;
3450: $forceview = 1;
3451: if ($symb) {
3452: my ($map,$id,$res)=&decode_symb($symb);
3453: $env{'request.symb'} = $symb;
3454: $cfile = &clutter($res);
3455: } else {
3456: $cfile = $env{'form.suppurl'};
1.1298 raeburn 3457: my $escfile = &unescape($cfile);
1.1343 raeburn 3458: if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {
1.1298 raeburn 3459: $cfile = '/adm/wrapper'.$escfile;
3460: } else {
3461: $escfile =~ s{^http://}{};
3462: $cfile = &escape("/adm/wrapper/ext/$escfile");
3463: }
1.1199 raeburn 3464: }
1.1234 raeburn 3465: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3466: if ($env{'form.forceedit'}) {
3467: $forceview = 1;
3468: } else {
3469: $forceedit = 1;
3470: }
3471: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1193 raeburn 3472: }
3473: }
1.1194 raeburn 3474: if ($uploaded || $incourse) {
3475: $home=&homeserver($cnum,$cdom);
1.1207 raeburn 3476: } elsif ($file !~ m{/$}) {
1.1193 raeburn 3477: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
3478: $file=~s{^($match_domain/$match_username)}{/priv/$1};
3479: # Check that the user has permission to edit this resource
3480: my $setpriv = 1;
3481: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
3482: if (defined($cfudom)) {
3483: $home=&homeserver($cfuname,$cfudom);
3484: $cfile=$file;
3485: }
3486: }
1.1194 raeburn 3487: if (($cfile ne '') && (!$incourse || $uploaded) &&
3488: (($home ne '') && ($home ne 'no_host'))) {
1.1193 raeburn 3489: my @ids=¤t_machine_ids();
3490: unless (grep(/^\Q$home\E$/,@ids)) {
3491: $switchserver=1;
3492: }
3493: }
3494: }
1.1194 raeburn 3495: return ($cfile,$home,$switchserver,$forceedit,$forceview);
1.1193 raeburn 3496: }
3497:
3498: sub is_course_upload {
3499: my ($file,$cnum,$cdom) = @_;
3500: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
3501: $uploadpath =~ s{^\/}{};
1.1201 raeburn 3502: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
3503: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
1.1193 raeburn 3504: return 1;
3505: }
3506: return;
3507: }
3508:
1.1194 raeburn 3509: sub in_course {
1.1195 raeburn 3510: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
3511: if ($hideprivileged) {
3512: my $skipuser;
1.1219 raeburn 3513: my %coursehash = &coursedescription($cdom.'_'.$cnum);
3514: my @possdoms = ($cdom);
3515: if ($coursehash{'checkforpriv'}) {
3516: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
3517: }
3518: if (&privileged($uname,$udom,\@possdoms)) {
1.1195 raeburn 3519: $skipuser = 1;
3520: if ($coursehash{'nothideprivileged'}) {
3521: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3522: my $user;
3523: if ($item =~ /:/) {
3524: $user = $item;
3525: } else {
3526: $user = join(':',split(/[\@]/,$item));
3527: }
3528: if ($user eq $uname.':'.$udom) {
3529: undef($skipuser);
3530: last;
3531: }
3532: }
3533: }
3534: if ($skipuser) {
3535: return 0;
3536: }
3537: }
3538: }
1.1194 raeburn 3539: $type ||= 'any';
3540: if (!defined($cdom) || !defined($cnum)) {
3541: my $cid = $env{'request.course.id'};
3542: $cdom = $env{'course.'.$cid.'.domain'};
3543: $cnum = $env{'course.'.$cid.'.num'};
3544: }
3545: my $typesref;
1.1195 raeburn 3546: if (($type eq 'any') || ($type eq 'all')) {
1.1194 raeburn 3547: $typesref = ['active','previous','future'];
3548: } elsif ($type eq 'previous' || $type eq 'future') {
3549: $typesref = [$type];
3550: }
3551: my %roles = &get_my_roles($uname,$udom,'userroles',
3552: $typesref,undef,[$cdom]);
3553: my ($tmp) = keys(%roles);
3554: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
3555: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
3556: if (@course_roles > 0) {
3557: return 1;
3558: }
3559: return 0;
3560: }
3561:
1.478 albertel 3562: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 3563: # input: action, courseID, current domain, intended
1.637 raeburn 3564: # path to file, source of file, instruction to parse file for objects,
3565: # ref to hash for embedded objects,
3566: # ref to hash for codebase of java objects.
1.1095 raeburn 3567: # reference to scalar to accommodate mime type determined
3568: # from File::MMagic if $parser = parse.
1.637 raeburn 3569: #
1.485 raeburn 3570: # output: url to file (if action was uploaddoc),
3571: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 3572: #
1.478 albertel 3573: # Allows directory structure to be used within lonUsers/../userfiles/ for a
3574: # course.
1.477 raeburn 3575: #
1.478 albertel 3576: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3577: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
3578: # course's home server.
1.477 raeburn 3579: #
1.478 albertel 3580: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
3581: # be copied from $source (current location) to
3582: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3583: # and will then be copied to
3584: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
3585: # course's home server.
1.485 raeburn 3586: #
1.481 raeburn 3587: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 3588: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 3589: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3590: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
3591: # in course's home server.
1.637 raeburn 3592: #
1.477 raeburn 3593:
3594: sub process_coursefile {
1.1095 raeburn 3595: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
3596: $mimetype)=@_;
1.477 raeburn 3597: my $fetchresult;
1.638 albertel 3598: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 3599: if ($action eq 'propagate') {
1.638 albertel 3600: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
3601: $home);
1.481 raeburn 3602: } else {
1.477 raeburn 3603: my $fpath = '';
3604: my $fname = $file;
1.478 albertel 3605: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 3606: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 3607: my $filepath = &build_filepath($fpath);
1.481 raeburn 3608: if ($action eq 'copy') {
3609: if ($source eq '') {
3610: $fetchresult = 'no source file';
3611: return $fetchresult;
3612: } else {
3613: my $destination = $filepath.'/'.$fname;
3614: rename($source,$destination);
3615: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3616: $home);
1.481 raeburn 3617: }
3618: } elsif ($action eq 'uploaddoc') {
1.1359 raeburn 3619: open(my $fh,'>',$filepath.'/'.$fname);
1.620 albertel 3620: print $fh $env{'form.'.$source};
1.481 raeburn 3621: close($fh);
1.637 raeburn 3622: if ($parser eq 'parse') {
1.1024 raeburn 3623: my $mm = new File::MMagic;
1.1095 raeburn 3624: my $type = $mm->checktype_filename($filepath.'/'.$fname);
3625: if ($type eq 'text/html') {
1.1024 raeburn 3626: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
3627: unless ($parse_result eq 'ok') {
3628: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
3629: }
1.637 raeburn 3630: }
1.1095 raeburn 3631: if (ref($mimetype)) {
3632: $$mimetype = $type;
3633: }
1.637 raeburn 3634: }
1.477 raeburn 3635: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3636: $home);
1.481 raeburn 3637: if ($fetchresult eq 'ok') {
3638: return '/uploaded/'.$fpath.'/'.$fname;
3639: } else {
3640: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3641: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 3642: return '/adm/notfound.html';
3643: }
1.477 raeburn 3644: }
3645: }
1.485 raeburn 3646: unless ( $fetchresult eq 'ok') {
1.477 raeburn 3647: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3648: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 3649: }
3650: return $fetchresult;
3651: }
3652:
1.637 raeburn 3653: sub build_filepath {
3654: my ($fpath) = @_;
3655: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
3656: unless ($fpath eq '') {
3657: my @parts=split('/',$fpath);
3658: foreach my $part (@parts) {
3659: $filepath.= '/'.$part;
3660: if ((-e $filepath)!=1) {
3661: mkdir($filepath,0777);
3662: }
3663: }
3664: }
3665: return $filepath;
3666: }
3667:
3668: sub store_edited_file {
1.638 albertel 3669: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 3670: my $file = $primary_url;
3671: $file =~ s#^/uploaded/$docudom/$docuname/##;
3672: my $fpath = '';
3673: my $fname = $file;
3674: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3675: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3676: my $filepath = &build_filepath($fpath);
1.1359 raeburn 3677: open(my $fh,'>',$filepath.'/'.$fname);
1.637 raeburn 3678: print $fh $content;
3679: close($fh);
1.638 albertel 3680: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3681: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3682: $home);
1.637 raeburn 3683: if ($$fetchresult eq 'ok') {
3684: return '/uploaded/'.$fpath.'/'.$fname;
3685: } else {
1.638 albertel 3686: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3687: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3688: return '/adm/notfound.html';
3689: }
3690: }
3691:
1.531 albertel 3692: sub clean_filename {
1.831 albertel 3693: my ($fname,$args)=@_;
1.315 www 3694: # Replace Windows backslashes by forward slashes
1.257 www 3695: $fname=~s/\\/\//g;
1.831 albertel 3696: if (!$args->{'keep_path'}) {
3697: # Get rid of everything but the actual filename
3698: $fname=~s/^.*\/([^\/]+)$/$1/;
3699: }
1.315 www 3700: # Replace spaces by underscores
3701: $fname=~s/\s+/\_/g;
3702: # Replace all other weird characters by nothing
1.831 albertel 3703: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3704: # Replace all .\d. sequences with _\d. so they no longer look like version
3705: # numbers
3706: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3707: return $fname;
3708: }
1.1051 raeburn 3709: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3710: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3711: # image with the same aspect ratio as the original, but with dimensions which do
3712: # not exceed $resizewidth and $resizeheight.
3713:
1.984 neumanie 3714: sub resizeImage {
1.1051 raeburn 3715: my ($img_path,$resizewidth,$resizeheight) = @_;
3716: my $ima = Image::Magick->new;
3717: my $resized;
3718: if (-e $img_path) {
3719: $ima->Read($img_path);
3720: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3721: my $width = $ima->Get('width');
3722: my $height = $ima->Get('height');
3723: if ($width > $resizewidth) {
3724: my $factor = $width/$resizewidth;
3725: my $newheight = $height/$factor;
3726: $ima->Scale(width=>$resizewidth,height=>$newheight);
3727: $resized = 1;
3728: }
3729: }
3730: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3731: my $width = $ima->Get('width');
3732: my $height = $ima->Get('height');
3733: if ($height > $resizeheight) {
3734: my $factor = $height/$resizeheight;
3735: my $newwidth = $width/$factor;
3736: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3737: $resized = 1;
3738: }
3739: }
3740: if ($resized) {
3741: $ima->Write($img_path);
3742: }
3743: }
3744: return;
1.977 amueller 3745: }
3746:
1.608 albertel 3747: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3748: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3749: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3750: # $context - possible values: coursedoc, existingfile, overwrite,
3751: # canceloverwrite, or ''.
3752: # if 'coursedoc': upload to the current course
3753: # if 'existingfile': write file to tmp/overwrites directory
3754: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3755: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3756: # $subdir - directory in userfile to store the file into
1.858 raeburn 3757: # $parser - instruction to parse file for objects ($parser = parse)
3758: # $allfiles - reference to hash for embedded objects
3759: # $codebase - reference to hash for codebase of java objects
3760: # $desuname - username for permanent storage of uploaded file
3761: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3762: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3763: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3764: # $resizewidth - width (pixels) to which to resize uploaded image
3765: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3766: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3767: # from File::MMagic.
1.858 raeburn 3768: #
1.686 albertel 3769: # output: url of file in userspace, or error: <message>
3770: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3771:
1.531 albertel 3772: sub userfileupload {
1.1090 raeburn 3773: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3774: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3775: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3776: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3777: $fname=&clean_filename($fname);
1.1090 raeburn 3778: # See if there is anything left
1.257 www 3779: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3780: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3781: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3782: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3783: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3784: my $now = time;
1.1090 raeburn 3785: my $filepath;
1.1095 raeburn 3786: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3787: $filepath = 'tmp/helprequests/'.$now;
3788: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3789: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3790: '_'.$env{'user.domain'}.'/pending';
3791: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3792: my ($docuname,$docudom);
1.1350 raeburn 3793: if ($destudom =~ /^$match_domain$/) {
1.1090 raeburn 3794: $docudom = $destudom;
3795: } else {
3796: $docudom = $env{'user.domain'};
3797: }
1.1350 raeburn 3798: if ($destuname =~ /^$match_username$/) {
1.1090 raeburn 3799: $docuname = $destuname;
3800: } else {
3801: $docuname = $env{'user.name'};
3802: }
3803: if (exists($env{'form.group'})) {
3804: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3805: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3806: }
3807: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3808: if ($context eq 'canceloverwrite') {
3809: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3810: if (-e $tempfile) {
3811: my @info = stat($tempfile);
3812: if ($info[9] eq $env{'form.timestamp'}) {
3813: unlink($tempfile);
3814: }
3815: }
3816: return;
1.523 raeburn 3817: }
3818: }
1.1090 raeburn 3819: # Create the directory if not present
1.741 raeburn 3820: my @parts=split(/\//,$filepath);
3821: my $fullpath = $perlvar{'lonDaemons'};
3822: for (my $i=0;$i<@parts;$i++) {
3823: $fullpath .= '/'.$parts[$i];
3824: if ((-e $fullpath)!=1) {
3825: mkdir($fullpath,0777);
3826: }
3827: }
1.1359 raeburn 3828: open(my $fh,'>',$fullpath.'/'.$fname);
1.741 raeburn 3829: print $fh $env{'form.'.$formname};
3830: close($fh);
1.1090 raeburn 3831: if ($context eq 'existingfile') {
3832: my @info = stat($fullpath.'/'.$fname);
3833: return ($fullpath.'/'.$fname,$info[9]);
3834: } else {
3835: return $fullpath.'/'.$fname;
3836: }
1.523 raeburn 3837: }
1.995 raeburn 3838: if ($subdir eq 'scantron') {
3839: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3840: } else {
1.995 raeburn 3841: $fname="$subdir/$fname";
3842: }
1.1090 raeburn 3843: if ($context eq 'coursedoc') {
1.638 albertel 3844: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3845: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3846: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3847: return &finishuserfileupload($docuname,$docudom,
3848: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3849: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3850: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3851: } else {
1.1218 raeburn 3852: if ($env{'form.folder'}) {
3853: $fname=$env{'form.folder'}.'/'.$fname;
3854: }
1.638 albertel 3855: return &process_coursefile('uploaddoc',$docuname,$docudom,
3856: $fname,$formname,$parser,
1.1095 raeburn 3857: $allfiles,$codebase,$mimetype);
1.481 raeburn 3858: }
1.719 banghart 3859: } elsif (defined($destuname)) {
3860: my $docuname=$destuname;
3861: my $docudom=$destudom;
1.860 raeburn 3862: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3863: $parser,$allfiles,$codebase,
1.1051 raeburn 3864: $thumbwidth,$thumbheight,
1.1095 raeburn 3865: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3866: } else {
1.638 albertel 3867: my $docuname=$env{'user.name'};
3868: my $docudom=$env{'user.domain'};
1.1220 raeburn 3869: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
1.714 raeburn 3870: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3871: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3872: }
1.860 raeburn 3873: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3874: $parser,$allfiles,$codebase,
1.1051 raeburn 3875: $thumbwidth,$thumbheight,
1.1095 raeburn 3876: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3877: }
1.271 www 3878: }
3879:
3880: sub finishuserfileupload {
1.860 raeburn 3881: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3882: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3883: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3884: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3885:
1.860 raeburn 3886: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3887: $file=$fname;
3888: if ($fname=~m|/|) {
3889: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3890: $path.=$fnamepath.'/';
3891: }
1.259 www 3892: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3893: my $count;
3894: for ($count=4;$count<=$#parts;$count++) {
3895: $filepath.="/$parts[$count]";
3896: if ((-e $filepath)!=1) {
3897: mkdir($filepath,0777);
3898: }
3899: }
1.984 neumanie 3900:
1.258 www 3901: # Save the file
3902: {
1.1359 raeburn 3903: if (!open(FH,'>',$filepath.'/'.$file)) {
1.701 albertel 3904: &logthis('Failed to create '.$filepath.'/'.$file);
3905: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3906: return '/adm/notfound.html';
3907: }
1.1090 raeburn 3908: if ($context eq 'overwrite') {
1.1117 foxr 3909: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3910: my $target = $filepath.'/'.$file;
3911: if (-e $source) {
3912: my @info = stat($source);
3913: if ($info[9] eq $env{'form.timestamp'}) {
3914: unless (&File::Copy::move($source,$target)) {
3915: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3916: return "Moving from $source failed";
3917: }
3918: } else {
3919: return "Temporary file: $source had unexpected date/time for last modification";
3920: }
3921: } else {
3922: return "Temporary file: $source missing";
3923: }
3924: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3925: &logthis('Failed to write to '.$filepath.'/'.$file);
3926: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3927: return '/adm/notfound.html';
3928: }
1.570 albertel 3929: close(FH);
1.1051 raeburn 3930: if ($resizewidth && $resizeheight) {
3931: my $mm = new File::MMagic;
3932: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3933: if ($mime_type =~ m{^image/}) {
3934: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3935: }
1.977 amueller 3936: }
1.258 www 3937: }
1.1152 raeburn 3938: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3939: if (ref($mimetype)) {
3940: if ($$mimetype eq '') {
3941: my $mm = new File::MMagic;
3942: my $type = $mm->checktype_filename($filepath.'/'.$file);
3943: $$mimetype = $type;
3944: }
3945: }
3946: }
1.637 raeburn 3947: if ($parser eq 'parse') {
1.1152 raeburn 3948: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3949: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3950: $allfiles,$codebase);
3951: unless ($parse_result eq 'ok') {
3952: &logthis('Failed to parse '.$filepath.$file.
3953: ' for embedded media: '.$parse_result);
3954: }
1.637 raeburn 3955: }
3956: }
1.860 raeburn 3957: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3958: my $input = $filepath.'/'.$file;
3959: my $output = $filepath.'/'.'tn-'.$file;
3960: my $thumbsize = $thumbwidth.'x'.$thumbheight;
1.1359 raeburn 3961: my @args = ('convert','-sample',$thumbsize,$input,$output);
3962: system({$args[0]} @args);
1.860 raeburn 3963: if (-e $filepath.'/'.'tn-'.$file) {
3964: $fetchthumb = 1;
3965: }
3966: }
1.858 raeburn 3967:
1.259 www 3968: # Notify homeserver to grep it
3969: #
1.984 neumanie 3970: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3971: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3972: if ($fetchresult eq 'ok') {
1.860 raeburn 3973: if ($fetchthumb) {
3974: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3975: if ($thumbresult ne 'ok') {
3976: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3977: $docuhome.': '.$thumbresult);
3978: }
3979: }
1.259 www 3980: #
1.258 www 3981: # Return the URL to it
1.494 albertel 3982: return '/uploaded/'.$path.$file;
1.263 www 3983: } else {
1.494 albertel 3984: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3985: ': '.$fetchresult);
1.263 www 3986: return '/adm/notfound.html';
1.858 raeburn 3987: }
1.493 albertel 3988: }
3989:
1.637 raeburn 3990: sub extract_embedded_items {
1.961 raeburn 3991: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3992: my @state = ();
1.1164 raeburn 3993: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3994: my %javafiles = (
3995: codebase => '',
3996: code => '',
3997: archive => ''
3998: );
3999: my %mediafiles = (
4000: src => '',
4001: movie => '',
4002: );
1.648 raeburn 4003: my $p;
4004: if ($content) {
4005: $p = HTML::LCParser->new($content);
4006: } else {
1.961 raeburn 4007: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 4008: }
1.641 albertel 4009: while (my $t=$p->get_token()) {
1.640 albertel 4010: if ($t->[0] eq 'S') {
4011: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 4012: push(@state, $tagname);
1.648 raeburn 4013: if (lc($tagname) eq 'allow') {
4014: &add_filetype($allfiles,$attr->{'src'},'src');
4015: }
1.640 albertel 4016: if (lc($tagname) eq 'img') {
4017: &add_filetype($allfiles,$attr->{'src'},'src');
4018: }
1.886 albertel 4019: if (lc($tagname) eq 'a') {
1.1222 raeburn 4020: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
1.1221 raeburn 4021: &add_filetype($allfiles,$attr->{'href'},'href');
4022: }
1.886 albertel 4023: }
1.645 raeburn 4024: if (lc($tagname) eq 'script') {
1.1164 raeburn 4025: my $src;
1.645 raeburn 4026: if ($attr->{'archive'} =~ /\.jar$/i) {
4027: &add_filetype($allfiles,$attr->{'archive'},'archive');
4028: } else {
1.1164 raeburn 4029: if ($attr->{'src'} ne '') {
4030: $src = $attr->{'src'};
4031: &add_filetype($allfiles,$src,'src');
4032: }
4033: }
4034: my $text = $p->get_trimmed_text();
4035: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
4036: my @swfargs = split(/,/,$1);
4037: foreach my $item (@swfargs) {
4038: $item =~ s/["']//g;
4039: $item =~ s/^\s+//;
4040: $item =~ s/\s+$//;
4041: }
4042: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
4043: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
4044: push(@{$related{$swfargs[0]}},$swfargs[2]);
4045: } else {
4046: $related{$swfargs[0]} = [$swfargs[2]];
4047: }
4048: }
1.645 raeburn 4049: }
4050: }
4051: if (lc($tagname) eq 'link') {
4052: if (lc($attr->{'rel'}) eq 'stylesheet') {
4053: &add_filetype($allfiles,$attr->{'href'},'href');
4054: }
4055: }
1.640 albertel 4056: if (lc($tagname) eq 'object' ||
4057: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
4058: foreach my $item (keys(%javafiles)) {
4059: $javafiles{$item} = '';
4060: }
1.1164 raeburn 4061: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
4062: $lastids{lc($tagname)} = $attr->{'id'};
4063: }
1.640 albertel 4064: }
4065: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
4066: my $name = lc($attr->{'name'});
4067: foreach my $item (keys(%javafiles)) {
4068: if ($name eq $item) {
4069: $javafiles{$item} = $attr->{'value'};
4070: last;
4071: }
4072: }
1.1164 raeburn 4073: my $pathfrom;
1.640 albertel 4074: foreach my $item (keys(%mediafiles)) {
4075: if ($name eq $item) {
1.1164 raeburn 4076: $pathfrom = $attr->{'value'};
4077: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
4078: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 4079: last;
4080: }
4081: }
1.1164 raeburn 4082: if ($name eq 'flashvars') {
4083: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
4084: }
4085: if ($pathfrom ne '') {
4086: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
4087: $pathfrom);
4088: }
1.640 albertel 4089: }
4090: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
4091: foreach my $item (keys(%javafiles)) {
4092: if ($attr->{$item}) {
4093: $javafiles{$item} = $attr->{$item};
4094: last;
4095: }
4096: }
4097: foreach my $item (keys(%mediafiles)) {
4098: if ($attr->{$item}) {
4099: &add_filetype($allfiles,$attr->{$item},$item);
4100: last;
4101: }
4102: }
1.1164 raeburn 4103: if (lc($tagname) eq 'embed') {
4104: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
4105: &embedded_dependency($allfiles,\%related,$attr->{'name'},
4106: $attr->{'src'});
4107: }
4108: }
1.640 albertel 4109: }
1.1243 raeburn 4110: if (lc($tagname) eq 'iframe') {
4111: my $src = $attr->{'src'} ;
4112: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
4113: &add_filetype($allfiles,$src,'src');
4114: } elsif ($src =~ m{^/}) {
4115: if ($env{'request.course.id'}) {
4116: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4117: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4118: my $url = &hreflocation('',$fullpath);
4119: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
4120: my $relpath = $1;
4121: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
4122: &add_filetype($allfiles,$1,'src');
4123: }
4124: }
4125: }
4126: }
4127: }
1.1164 raeburn 4128: if ($t->[4] =~ m{/>$}) {
1.1243 raeburn 4129: pop(@state);
1.1164 raeburn 4130: }
1.640 albertel 4131: } elsif ($t->[0] eq 'E') {
4132: my ($tagname) = ($t->[1]);
4133: if ($javafiles{'codebase'} ne '') {
4134: $javafiles{'codebase'} .= '/';
4135: }
4136: if (lc($tagname) eq 'applet' ||
4137: lc($tagname) eq 'object' ||
4138: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
4139: ) {
4140: foreach my $item (keys(%javafiles)) {
4141: if ($item ne 'codebase' && $javafiles{$item} ne '') {
4142: my $file=$javafiles{'codebase'}.$javafiles{$item};
4143: &add_filetype($allfiles,$file,$item);
4144: }
4145: }
4146: }
4147: pop @state;
4148: }
4149: }
1.1164 raeburn 4150: foreach my $id (sort(keys(%flashvars))) {
4151: if ($shockwave{$id} ne '') {
4152: my @pairs = split(/\&/,$flashvars{$id});
4153: foreach my $pair (@pairs) {
4154: my ($key,$value) = split(/\=/,$pair);
4155: if ($key eq 'thumb') {
4156: &add_filetype($allfiles,$value,$key);
4157: } elsif ($key eq 'content') {
4158: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
4159: my ($ext) = ($value =~ /\.([^.]+)$/);
4160: if ($ext ne '') {
4161: &add_filetype($allfiles,$path.$value,$ext);
4162: }
4163: }
4164: }
4165: }
4166: }
1.637 raeburn 4167: return 'ok';
4168: }
4169:
1.639 albertel 4170: sub add_filetype {
4171: my ($allfiles,$file,$type)=@_;
4172: if (exists($allfiles->{$file})) {
4173: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
4174: push(@{$allfiles->{$file}}, &escape($type));
4175: }
4176: } else {
4177: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 4178: }
4179: }
4180:
1.1164 raeburn 4181: sub embedded_dependency {
4182: my ($allfiles,$related,$identifier,$pathfrom) = @_;
4183: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
4184: if (($identifier ne '') &&
4185: (ref($related->{$identifier}) eq 'ARRAY') &&
4186: ($pathfrom ne '')) {
4187: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
4188: foreach my $dep (@{$related->{$identifier}}) {
4189: &add_filetype($allfiles,$path.$dep,'object');
4190: }
4191: }
4192: }
4193: return;
4194: }
4195:
1.493 albertel 4196: sub removeuploadedurl {
1.984 neumanie 4197: my ($url)=@_;
4198: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 4199: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 4200: }
4201:
4202: sub removeuserfile {
4203: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 4204: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 4205: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 4206: if ($result eq 'ok') {
1.798 raeburn 4207: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
4208: my $metafile = $fname.'.meta';
4209: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 4210: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 4211: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 4212: my $sqlresult =
1.823 albertel 4213: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 4214: 'portfolio_metadata',$group,
4215: 'delete');
1.798 raeburn 4216: }
4217: }
4218: return $result;
1.257 www 4219: }
1.15 www 4220:
1.530 albertel 4221: sub mkdiruserfile {
4222: my ($docuname,$docudom,$dir)=@_;
4223: my $home=&homeserver($docuname,$docudom);
4224: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
4225: }
4226:
1.531 albertel 4227: sub renameuserfile {
4228: my ($docuname,$docudom,$old,$new)=@_;
4229: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 4230: my $result = &reply("renameuserfile:$docudom:$docuname:".
4231: &escape("$old").':'.&escape("$new"),$home);
4232: if ($result eq 'ok') {
4233: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
4234: my $oldmeta = $old.'.meta';
4235: my $newmeta = $new.'.meta';
4236: my $metaresult =
4237: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 4238: my $url = "/uploaded/$docudom/$docuname/$old";
4239: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 4240: my $sqlresult =
1.823 albertel 4241: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 4242: 'portfolio_metadata',$group,
4243: 'delete');
1.798 raeburn 4244: }
4245: }
4246: return $result;
1.531 albertel 4247: }
4248:
1.14 www 4249: # ------------------------------------------------------------------------- Log
4250:
4251: sub log {
4252: my ($dom,$nam,$hom,$what)=@_;
1.47 www 4253: return critical("log:$dom:$nam:$what",$hom);
1.157 www 4254: }
4255:
4256: # ------------------------------------------------------------------ Course Log
1.352 www 4257: #
4258: # This routine flushes several buffers of non-mission-critical nature
4259: #
1.157 www 4260:
4261: sub flushcourselogs {
1.352 www 4262: &logthis('Flushing log buffers');
4263: #
4264: # course logs
4265: # This is a log of all transactions in a course, which can be used
4266: # for data mining purposes
4267: #
4268: # It also collects the courseid database, which lists last transaction
4269: # times and course titles for all courseids
4270: #
4271: my %courseidbuffer=();
1.921 raeburn 4272: foreach my $crsid (keys(%courselogs)) {
1.352 www 4273: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 4274: &escape($courselogs{$crsid}),
4275: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 4276: delete $courselogs{$crsid};
4277: } else {
4278: &logthis('Failed to flush log buffer for '.$crsid);
4279: if (length($courselogs{$crsid})>40000) {
1.672 albertel 4280: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 4281: " exceeded maximum size, deleting.</font>");
4282: delete $courselogs{$crsid};
4283: }
1.352 www 4284: }
1.920 raeburn 4285: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 4286: 'description' => $coursedescrbuf{$crsid},
4287: 'inst_code' => $courseinstcodebuf{$crsid},
4288: 'type' => $coursetypebuf{$crsid},
4289: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 4290: };
1.191 harris41 4291: }
1.352 www 4292: #
4293: # Write course id database (reverse lookup) to homeserver of courses
4294: # Is used in pickcourse
4295: #
1.840 albertel 4296: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 4297: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 4298: $courseidbuffer{$crs_home},
4299: $crs_home,'timeonly');
1.352 www 4300: }
4301: #
4302: # File accesses
4303: # Writes to the dynamic metadata of resources to get hit counts, etc.
4304: #
1.449 matthew 4305: foreach my $entry (keys(%accesshash)) {
1.458 matthew 4306: if ($entry =~ /___count$/) {
4307: my ($dom,$name);
1.807 albertel 4308: ($dom,$name,undef)=
1.811 albertel 4309: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 4310: if (! defined($dom) || $dom eq '' ||
4311: ! defined($name) || $name eq '') {
1.620 albertel 4312: my $cid = $env{'request.course.id'};
4313: $dom = $env{'request.'.$cid.'.domain'};
4314: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 4315: }
1.450 matthew 4316: my $value = $accesshash{$entry};
4317: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
4318: my %temphash=($url => $value);
1.449 matthew 4319: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
4320: if ($result eq 'ok') {
4321: delete $accesshash{$entry};
4322: }
4323: } else {
1.811 albertel 4324: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 4325: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 4326: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 4327: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
4328: delete $accesshash{$entry};
4329: }
1.185 www 4330: }
1.191 harris41 4331: }
1.352 www 4332: #
4333: # Roles
4334: # Reverse lookup of user roles for course faculty/staff and co-authorship
4335: #
1.800 albertel 4336: foreach my $entry (keys(%userrolehash)) {
1.351 www 4337: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 4338: split(/\:/,$entry);
4339: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 4340: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 4341: $rudom,$runame) eq 'ok') {
4342: delete $userrolehash{$entry};
4343: }
4344: }
1.662 raeburn 4345: #
1.1334 raeburn 4346: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)
1.662 raeburn 4347: #
4348: my %domrolebuffer = ();
1.1000 raeburn 4349: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 4350: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 4351: if ($domrolebuffer{$rudom}) {
4352: $domrolebuffer{$rudom}.='&'.&escape($entry).
4353: '='.&escape($domainrolehash{$entry});
4354: } else {
4355: $domrolebuffer{$rudom}.=&escape($entry).
4356: '='.&escape($domainrolehash{$entry});
4357: }
4358: delete $domainrolehash{$entry};
4359: }
4360: foreach my $dom (keys(%domrolebuffer)) {
1.1324 raeburn 4361: my %servers;
4362: if (defined(&domain($dom,'primary'))) {
4363: my $primary=&domain($dom,'primary');
4364: my $hostname=&hostname($primary);
4365: $servers{$primary} = $hostname;
4366: } else {
4367: %servers = &get_servers($dom,'library');
4368: }
1.841 albertel 4369: foreach my $tryserver (keys(%servers)) {
1.1324 raeburn 4370: if (&reply('domroleput:'.$dom.':'.
4371: $domrolebuffer{$dom},$tryserver) eq 'ok') {
4372: last;
4373: } else {
1.841 albertel 4374: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
4375: }
1.662 raeburn 4376: }
4377: }
1.186 www 4378: $dumpcount++;
1.157 www 4379: }
4380:
4381: sub courselog {
4382: my $what=shift;
1.158 www 4383: $what=time.':'.$what;
1.620 albertel 4384: unless ($env{'request.course.id'}) { return ''; }
4385: $coursedombuf{$env{'request.course.id'}}=
4386: $env{'course.'.$env{'request.course.id'}.'.domain'};
4387: $coursenumbuf{$env{'request.course.id'}}=
4388: $env{'course.'.$env{'request.course.id'}.'.num'};
4389: $coursehombuf{$env{'request.course.id'}}=
4390: $env{'course.'.$env{'request.course.id'}.'.home'};
4391: $coursedescrbuf{$env{'request.course.id'}}=
4392: $env{'course.'.$env{'request.course.id'}.'.description'};
4393: $courseinstcodebuf{$env{'request.course.id'}}=
4394: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
4395: $courseownerbuf{$env{'request.course.id'}}=
4396: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 4397: $coursetypebuf{$env{'request.course.id'}}=
4398: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 4399: if (defined $courselogs{$env{'request.course.id'}}) {
4400: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 4401: } else {
1.620 albertel 4402: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 4403: }
1.620 albertel 4404: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 4405: &flushcourselogs();
4406: }
1.158 www 4407: }
4408:
4409: sub courseacclog {
4410: my $fnsymb=shift;
1.620 albertel 4411: unless ($env{'request.course.id'}) { return ''; }
4412: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 4413: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 4414: $what.=':POST';
1.583 matthew 4415: # FIXME: Probably ought to escape things....
1.800 albertel 4416: foreach my $key (keys(%env)) {
4417: if ($key=~/^form\.(.*)/) {
1.975 raeburn 4418: my $formitem = $1;
4419: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
4420: $what.=':'.$formitem.'='.$env{$key};
4421: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
4422: $what.=':'.$formitem.'='.$env{$key};
4423: }
1.158 www 4424: }
1.191 harris41 4425: }
1.583 matthew 4426: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
4427: # FIXME: We should not be depending on a form parameter that someone
4428: # editing lonsearchcat.pm might change in the future.
1.620 albertel 4429: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 4430: $what.= ':POST';
4431: # FIXME: Probably ought to escape things....
4432: foreach my $element ('courseexp','crsfulltext','crsrelated',
4433: 'crsdiscuss') {
1.620 albertel 4434: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 4435: }
4436: }
1.158 www 4437: }
4438: &courselog($what);
1.149 www 4439: }
4440:
1.185 www 4441: sub countacc {
4442: my $url=&declutter(shift);
1.458 matthew 4443: return if (! defined($url) || $url eq '');
1.620 albertel 4444: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 4445: #
4446: # Mark that this url was used in this course
4447: #
1.620 albertel 4448: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 4449: #
4450: # Increase the access count for this resource in this child process
4451: #
1.281 www 4452: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 4453: $accesshash{$key}++;
1.185 www 4454: }
1.349 www 4455:
1.361 www 4456: sub linklog {
4457: my ($from,$to)=@_;
4458: $from=&declutter($from);
4459: $to=&declutter($to);
4460: $accesshash{$from.'___'.$to.'___comefrom'}=1;
4461: $accesshash{$to.'___'.$from.'___goto'}=1;
4462: }
1.1160 www 4463:
4464: sub statslog {
4465: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
4466: if ($users<2) { return; }
4467: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
4468: 'course' => $env{'request.course.id'},
4469: 'sections' => '"all"',
4470: 'num_students' => $users,
4471: 'part' => $part,
4472: 'symb' => $symb,
4473: 'mean_tries' => $av_attempts,
4474: 'deg_of_diff' => $degdiff});
4475: foreach my $key (keys(%dynstore)) {
4476: $accesshash{$key}=$dynstore{$key};
4477: }
4478: }
1.361 www 4479:
1.349 www 4480: sub userrolelog {
4481: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 4482: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 4483: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4484: $userrolehash
4485: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 4486: =$tend.':'.$tstart;
1.662 raeburn 4487: }
1.1169 droeschl 4488: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 4489: $userrolehash
4490: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
4491: =$tend.':'.$tstart;
4492: }
1.1334 raeburn 4493: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) {
1.662 raeburn 4494: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4495: $domainrolehash
4496: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
4497: = $tend.':'.$tstart;
4498: }
1.351 www 4499: }
4500:
1.957 raeburn 4501: sub courserolelog {
4502: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1184 raeburn 4503: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
4504: my $cdom = $1;
4505: my $cnum = $2;
4506: my $sec = $3;
4507: my $namespace = 'rolelog';
4508: my %storehash = (
4509: role => $trole,
4510: start => $tstart,
4511: end => $tend,
4512: selfenroll => $selfenroll,
4513: context => $context,
4514: );
4515: if ($trole eq 'gr') {
4516: $namespace = 'groupslog';
4517: $storehash{'group'} = $sec;
4518: } else {
4519: $storehash{'section'} = $sec;
4520: }
1.1188 raeburn 4521: &write_log('course',$namespace,\%storehash,$delflag,$username,
4522: $domain,$cnum,$cdom);
1.1184 raeburn 4523: if (($trole ne 'st') || ($sec ne '')) {
4524: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 4525: }
4526: }
4527: return;
4528: }
4529:
1.1184 raeburn 4530: sub domainrolelog {
4531: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4532: if ($area =~ m{^/($match_domain)/$}) {
4533: my $cdom = $1;
4534: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
4535: my $namespace = 'rolelog';
4536: my %storehash = (
4537: role => $trole,
4538: start => $tstart,
4539: end => $tend,
4540: context => $context,
4541: );
1.1188 raeburn 4542: &write_log('domain',$namespace,\%storehash,$delflag,$username,
4543: $domain,$domconfiguser,$cdom);
1.1184 raeburn 4544: }
4545: return;
4546:
4547: }
4548:
4549: sub coauthorrolelog {
4550: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4551: if ($area =~ m{^/($match_domain)/($match_username)$}) {
4552: my $audom = $1;
4553: my $auname = $2;
4554: my $namespace = 'rolelog';
4555: my %storehash = (
4556: role => $trole,
4557: start => $tstart,
4558: end => $tend,
4559: context => $context,
4560: );
1.1188 raeburn 4561: &write_log('author',$namespace,\%storehash,$delflag,$username,
4562: $domain,$auname,$audom);
1.1184 raeburn 4563: }
4564: return;
4565: }
4566:
1.351 www 4567: sub get_course_adv_roles {
1.948 raeburn 4568: my ($cid,$codes) = @_;
1.620 albertel 4569: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 4570: my %coursehash=&coursedescription($cid);
1.988 raeburn 4571: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 4572: my %nothide=();
1.800 albertel 4573: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 4574: if ($user !~ /:/) {
4575: $nothide{join(':',split(/[\@]/,$user))}=1;
4576: } else {
4577: $nothide{$user}=1;
4578: }
1.470 www 4579: }
1.1219 raeburn 4580: my @possdoms = ($coursehash{'domain'});
4581: if ($coursehash{'checkforpriv'}) {
4582: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4583: }
1.351 www 4584: my %returnhash=();
4585: my %dumphash=
4586: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
4587: my $now=time;
1.997 raeburn 4588: my %privileged;
1.1000 raeburn 4589: foreach my $entry (keys(%dumphash)) {
1.800 albertel 4590: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 4591: if (($tstart) && ($tstart<0)) { next; }
4592: if (($tend) && ($tend<$now)) { next; }
4593: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 4594: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 4595: if ($username eq '' || $domain eq '') { next; }
1.1219 raeburn 4596: if ((&privileged($username,$domain,\@possdoms)) &&
1.997 raeburn 4597: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 4598: if ($role eq 'cr') { next; }
1.948 raeburn 4599: if ($codes) {
4600: if ($section) { $role .= ':'.$section; }
4601: if ($returnhash{$role}) {
4602: $returnhash{$role}.=','.$username.':'.$domain;
4603: } else {
4604: $returnhash{$role}=$username.':'.$domain;
4605: }
1.351 www 4606: } else {
1.988 raeburn 4607: my $key=&plaintext($role,$crstype);
1.973 bisitz 4608: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 4609: if ($returnhash{$key}) {
4610: $returnhash{$key}.=','.$username.':'.$domain;
4611: } else {
4612: $returnhash{$key}=$username.':'.$domain;
4613: }
1.351 www 4614: }
1.948 raeburn 4615: }
1.400 www 4616: return %returnhash;
4617: }
4618:
4619: sub get_my_roles {
1.937 raeburn 4620: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 4621: unless (defined($uname)) { $uname=$env{'user.name'}; }
4622: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 4623: my (%dumphash,%nothide);
1.1086 raeburn 4624: if ($context eq 'userroles') {
1.1166 raeburn 4625: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 4626: } else {
1.1219 raeburn 4627: %dumphash = &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 4628: if ($hidepriv) {
4629: my %coursehash=&coursedescription($udom.'_'.$uname);
4630: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4631: if ($user !~ /:/) {
4632: $nothide{join(':',split(/[\@]/,$user))} = 1;
4633: } else {
4634: $nothide{$user} = 1;
4635: }
4636: }
4637: }
1.858 raeburn 4638: }
1.400 www 4639: my %returnhash=();
4640: my $now=time;
1.999 raeburn 4641: my %privileged;
1.800 albertel 4642: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 4643: my ($role,$tend,$tstart);
4644: if ($context eq 'userroles') {
1.1149 raeburn 4645: next if ($entry =~ /^rolesdef/);
1.867 raeburn 4646: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
4647: } else {
4648: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
4649: }
1.400 www 4650: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 4651: my $status = 'active';
1.939 raeburn 4652: if (($tend) && ($tend<=$now)) {
1.832 raeburn 4653: $status = 'previous';
4654: }
4655: if (($tstart) && ($now<$tstart)) {
4656: $status = 'future';
4657: }
4658: if (ref($types) eq 'ARRAY') {
4659: if (!grep(/^\Q$status\E$/,@{$types})) {
4660: next;
4661: }
4662: } else {
4663: if ($status ne 'active') {
4664: next;
4665: }
4666: }
1.867 raeburn 4667: my ($rolecode,$username,$domain,$section,$area);
4668: if ($context eq 'userroles') {
1.1186 raeburn 4669: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 4670: (undef,$domain,$username,$section) = split(/\//,$area);
4671: } else {
4672: ($role,$username,$domain,$section) = split(/\:/,$entry);
4673: }
1.832 raeburn 4674: if (ref($roledoms) eq 'ARRAY') {
4675: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
4676: next;
4677: }
4678: }
4679: if (ref($roles) eq 'ARRAY') {
4680: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 4681: if ($role =~ /^cr\//) {
4682: if (!grep(/^cr$/,@{$roles})) {
4683: next;
4684: }
1.1104 raeburn 4685: } elsif ($role =~ /^gr\//) {
4686: if (!grep(/^gr$/,@{$roles})) {
4687: next;
4688: }
1.922 raeburn 4689: } else {
4690: next;
4691: }
1.832 raeburn 4692: }
1.867 raeburn 4693: }
1.937 raeburn 4694: if ($hidepriv) {
1.1219 raeburn 4695: my @privroles = ('dc','su');
1.999 raeburn 4696: if ($context eq 'userroles') {
1.1219 raeburn 4697: next if (grep(/^\Q$role\E$/,@privroles));
1.999 raeburn 4698: } else {
1.1219 raeburn 4699: my $possdoms = [$domain];
4700: if (ref($roledoms) eq 'ARRAY') {
4701: push(@{$possdoms},@{$roledoms});
1.999 raeburn 4702: }
1.1219 raeburn 4703: if (&privileged($username,$domain,$possdoms,\@privroles)) {
1.999 raeburn 4704: if (!$nothide{$username.':'.$domain}) {
4705: next;
4706: }
4707: }
1.937 raeburn 4708: }
4709: }
1.933 raeburn 4710: if ($withsec) {
4711: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4712: $tstart.':'.$tend;
4713: } else {
4714: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4715: }
1.832 raeburn 4716: }
1.373 www 4717: return %returnhash;
1.399 www 4718: }
4719:
1.1333 raeburn 4720: sub get_all_adhocroles {
4721: my ($dom) = @_;
4722: my @roles_by_num = ();
4723: my %domdefaults = &get_domain_defaults($dom);
4724: my (%description,%access_in_dom,%access_info);
4725: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
4726: my $count = 0;
4727: my %domcurrent = %{$domdefaults{'adhocroles'}};
4728: my %ordered;
4729: foreach my $role (sort(keys(%domcurrent))) {
4730: my ($order,$desc,$access_in_dom);
4731: if (ref($domcurrent{$role}) eq 'HASH') {
4732: $order = $domcurrent{$role}{'order'};
4733: $desc = $domcurrent{$role}{'desc'};
4734: $access_in_dom{$role} = $domcurrent{$role}{'access'};
4735: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
4736: }
4737: if ($order eq '') {
4738: $order = $count;
4739: }
4740: $ordered{$order} = $role;
4741: if ($desc ne '') {
4742: $description{$role} = $desc;
4743: } else {
4744: $description{$role}= $role;
4745: }
4746: $count++;
4747: }
4748: foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
4749: push(@roles_by_num,$ordered{$item});
4750: }
4751: }
4752: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
4753: }
4754:
1.1332 raeburn 4755: sub get_my_adhocroles {
1.1333 raeburn 4756: my ($cid,$checkreg) = @_;
4757: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
4758: if ($env{'request.course.id'} eq $cid) {
4759: $cdom = $env{'course.'.$cid.'.domain'};
4760: $cnum = $env{'course.'.$cid.'.num'};
4761: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
4762: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
4763: $cdom = $1;
4764: $cnum = $2;
4765: %info = &Apache::lonnet::get('environment',['internal.coursecode'],
4766: $cdom,$cnum);
4767: }
4768: if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
4769: my $user = $env{'user.name'}.':'.$env{'user.domain'};
4770: my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
4771: if ($rosterhash{$user} ne '') {
4772: my $type = (split(/:/,$rosterhash{$user}))[5];
4773: return ([],{}) if ($type eq 'auto');
4774: }
4775: }
4776: if (($cdom ne '') && ($cnum ne '')) {
1.1334 raeburn 4777: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) {
1.1332 raeburn 4778: my $then=$env{'user.login.time'};
4779: my $update=$env{'user.update.time'};
1.1335 raeburn 4780: if (!$update) {
4781: $update = $then;
4782: }
4783: my @liveroles;
1.1334 raeburn 4784: foreach my $role ('dh','da') {
4785: if ($env{"user.role.$role./$cdom/"}) {
1.1335 raeburn 4786: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
1.1334 raeburn 4787: my $limit = $update;
4788: if ($env{'request.role'} eq "$role./$cdom/") {
4789: $limit = $then;
4790: }
1.1335 raeburn 4791: my $activerole = 1;
4792: if ($tstart && $tstart>$limit) { $activerole = 0; }
4793: if ($tend && $tend <$limit) { $activerole = 0; }
4794: if ($activerole) {
4795: push(@liveroles,$role);
4796: }
1.1334 raeburn 4797: }
1.1332 raeburn 4798: }
1.1335 raeburn 4799: if (@liveroles) {
1.1332 raeburn 4800: if (&homeserver($cnum,$cdom) ne 'no_host') {
1.1333 raeburn 4801: my ($accessref,$accessinfo,%access_in_dom);
4802: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
4803: if (ref($roles_by_num) eq 'ARRAY') {
4804: if (@{$roles_by_num}) {
1.1332 raeburn 4805: my %settings;
4806: if ($env{'request.course.id'} eq $cid) {
4807: foreach my $envkey (keys(%env)) {
4808: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
4809: $settings{$1} = $env{$envkey};
4810: }
4811: }
4812: } else {
4813: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
4814: }
4815: my %setincrs;
4816: if ($settings{'internal.adhocaccess'}) {
4817: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
4818: }
4819: my @statuses;
4820: if ($env{'environment.inststatus'}) {
4821: @statuses = split(/,/,$env{'environment.inststatus'});
4822: }
4823: my $user = $env{'user.name'}.':'.$env{'user.domain'};
1.1333 raeburn 4824: if (ref($accessref) eq 'HASH') {
4825: %access_in_dom = %{$accessref};
4826: }
4827: foreach my $role (@{$roles_by_num}) {
1.1332 raeburn 4828: my ($curraccess,@okstatus,@personnel);
4829: if ($setincrs{$role}) {
4830: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
4831: if ($curraccess eq 'status') {
4832: @okstatus = split(/\&/,$rest);
4833: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4834: @personnel = split(/\&/,$rest);
4835: }
4836: } else {
4837: $curraccess = $access_in_dom{$role};
1.1333 raeburn 4838: if (ref($accessinfo) eq 'HASH') {
4839: if ($curraccess eq 'status') {
4840: if (ref($accessinfo->{$role}) eq 'ARRAY') {
4841: @okstatus = @{$accessinfo->{$role}};
4842: }
4843: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4844: if (ref($accessinfo->{$role}) eq 'ARRAY') {
4845: @personnel = @{$accessinfo->{$role}};
4846: }
1.1332 raeburn 4847: }
4848: }
4849: }
4850: if ($curraccess eq 'none') {
4851: next;
4852: } elsif ($curraccess eq 'all') {
4853: push(@possroles,$role);
1.1336 raeburn 4854: } elsif ($curraccess eq 'dh') {
1.1335 raeburn 4855: if (grep(/^dh$/,@liveroles)) {
4856: push(@possroles,$role);
4857: } else {
4858: next;
4859: }
1.1336 raeburn 4860: } elsif ($curraccess eq 'da') {
1.1335 raeburn 4861: if (grep(/^da$/,@liveroles)) {
4862: push(@possroles,$role);
4863: } else {
4864: next;
4865: }
1.1332 raeburn 4866: } elsif ($curraccess eq 'status') {
4867: if (@okstatus) {
4868: if (!@statuses) {
4869: if (grep(/^default$/,@okstatus)) {
4870: push(@possroles,$role);
4871: }
4872: } else {
4873: foreach my $status (@okstatus) {
4874: if (grep(/^\Q$status\E$/,@statuses)) {
4875: push(@possroles,$role);
4876: last;
4877: }
4878: }
4879: }
4880: }
4881: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4882: if (grep(/^\Q$user\E$/,@personnel)) {
4883: if ($curraccess eq 'exc') {
4884: push(@possroles,$role);
4885: }
4886: } elsif ($curraccess eq 'inc') {
4887: push(@possroles,$role);
4888: }
4889: }
4890: }
4891: }
4892: }
4893: }
4894: }
4895: }
4896: }
1.1333 raeburn 4897: unless (ref($description) eq 'HASH') {
4898: if (ref($roles_by_num) eq 'ARRAY') {
4899: my %desc;
4900: map { $desc{$_} = $_; } (@{$roles_by_num});
4901: $description = \%desc;
4902: } else {
4903: $description = {};
4904: }
4905: }
4906: return (\@possroles,$description);
1.1332 raeburn 4907: }
4908:
1.399 www 4909: # ----------------------------------------------------- Frontpage Announcements
4910: #
4911: #
4912:
4913: sub postannounce {
4914: my ($server,$text)=@_;
1.844 albertel 4915: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4916: unless ($text=~/\w/) { $text=''; }
4917: return &reply('setannounce:'.&escape($text),$server);
4918: }
4919:
4920: sub getannounce {
1.448 albertel 4921:
1.1359 raeburn 4922: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4923: my $announcement='';
1.800 albertel 4924: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4925: close($fh);
1.399 www 4926: if ($announcement=~/\w/) {
4927: return
4928: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4929: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4930: } else {
4931: return '';
4932: }
4933: } else {
4934: return '';
4935: }
1.351 www 4936: }
1.353 www 4937:
4938: # ---------------------------------------------------------- Course ID routines
4939: # Deal with domain's nohist_courseid.db files
4940: #
4941:
4942: sub courseidput {
1.921 raeburn 4943: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4944: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4945: my $outcome;
4946: if ($caller eq 'timeonly') {
4947: my $cids = '';
4948: foreach my $item (keys(%$storehash)) {
4949: $cids.=&escape($item).'&';
4950: }
4951: $cids=~s/\&$//;
4952: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4953: $coursehome);
4954: } else {
4955: my $items = '';
4956: foreach my $item (keys(%$storehash)) {
4957: $items.= &escape($item).'='.
4958: &freeze_escape($$storehash{$item}).'&';
4959: }
4960: $items=~s/\&$//;
4961: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4962: $coursehome);
1.918 raeburn 4963: }
4964: if ($outcome eq 'unknown_cmd') {
4965: my $what;
4966: foreach my $cid (keys(%$storehash)) {
4967: $what .= &escape($cid).'=';
1.921 raeburn 4968: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4969: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4970: }
4971: $what =~ s/\:$/&/;
4972: }
4973: $what =~ s/\&$//;
4974: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4975: } else {
4976: return $outcome;
4977: }
1.353 www 4978: }
4979:
4980: sub courseiddump {
1.921 raeburn 4981: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4982: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4983: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1247 raeburn 4984: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
1.1287 raeburn 4985: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
1.918 raeburn 4986: my $as_hash = 1;
4987: my %returnhash;
4988: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4989: my %libserv = &all_library();
4990: foreach my $tryserver (keys(%libserv)) {
4991: if ( ( $hostidflag == 1
4992: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4993: || (!defined($hostidflag)) ) {
4994:
1.918 raeburn 4995: if (($domfilter eq '') ||
4996: (&host_domain($tryserver) eq $domfilter)) {
1.1180 droeschl 4997: my $rep;
4998: if (grep { $_ eq $tryserver } current_machine_ids()) {
4999: $rep = LONCAPA::Lond::dump_course_id_handler(
5000: join(":", (&host_domain($tryserver), $sincefilter,
5001: &escape($descfilter), &escape($instcodefilter),
5002: &escape($ownerfilter), &escape($coursefilter),
5003: &escape($typefilter), &escape($regexp_ok),
5004: $as_hash, &escape($selfenrollonly),
5005: &escape($catfilter), $showhidden, $caller,
5006: &escape($cloner), &escape($cc_clone), $cloneonly,
5007: &escape($createdbefore), &escape($createdafter),
1.1287 raeburn 5008: &escape($creationcontext),$domcloner,$hasuniquecode,
5009: $reqcrsdom,&escape($reqinstcode))));
1.1180 droeschl 5010: } else {
5011: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
5012: $sincefilter.':'.&escape($descfilter).':'.
5013: &escape($instcodefilter).':'.&escape($ownerfilter).
5014: ':'.&escape($coursefilter).':'.&escape($typefilter).
5015: ':'.&escape($regexp_ok).':'.$as_hash.':'.
5016: &escape($selfenrollonly).':'.&escape($catfilter).':'.
5017: $showhidden.':'.$caller.':'.&escape($cloner).':'.
5018: &escape($cc_clone).':'.$cloneonly.':'.
5019: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1287 raeburn 5020: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
5021: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);
1.1180 droeschl 5022: }
5023:
1.918 raeburn 5024: my @pairs=split(/\&/,$rep);
5025: foreach my $item (@pairs) {
5026: my ($key,$value)=split(/\=/,$item,2);
5027: $key = &unescape($key);
5028: next if ($key =~ /^error: 2 /);
5029: my $result = &thaw_unescape($value);
5030: if (ref($result) eq 'HASH') {
5031: $returnhash{$key}=$result;
5032: } else {
1.921 raeburn 5033: my @responses = split(/:/,$value);
5034: my @items = ('description','inst_code','owner','type');
1.918 raeburn 5035: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 5036: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 5037: }
1.1008 raeburn 5038: }
1.353 www 5039: }
5040: }
5041: }
5042: }
5043: return %returnhash;
5044: }
5045:
1.1055 raeburn 5046: sub courselastaccess {
5047: my ($cdom,$cnum,$hostidref) = @_;
5048: my %returnhash;
5049: if ($cdom && $cnum) {
5050: my $chome = &homeserver($cnum,$cdom);
5051: if ($chome ne 'no_host') {
5052: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
5053: &extract_lastaccess(\%returnhash,$rep);
5054: }
5055: } else {
5056: if (!$cdom) { $cdom=''; }
5057: my %libserv = &all_library();
5058: foreach my $tryserver (keys(%libserv)) {
5059: if (ref($hostidref) eq 'ARRAY') {
5060: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
5061: }
5062: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
5063: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
5064: &extract_lastaccess(\%returnhash,$rep);
5065: }
5066: }
5067: }
5068: return %returnhash;
5069: }
5070:
5071: sub extract_lastaccess {
5072: my ($returnhash,$rep) = @_;
5073: if (ref($returnhash) eq 'HASH') {
5074: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
5075: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
5076: $rep eq '') {
5077: my @pairs=split(/\&/,$rep);
5078: foreach my $item (@pairs) {
5079: my ($key,$value)=split(/\=/,$item,2);
5080: $key = &unescape($key);
5081: next if ($key =~ /^error: 2 /);
5082: $returnhash->{$key} = &thaw_unescape($value);
5083: }
5084: }
5085: }
5086: return;
5087: }
5088:
1.658 raeburn 5089: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 5090:
5091: sub dcmailput {
1.685 raeburn 5092: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 5093: my $status = &Apache::lonnet::critical(
1.740 www 5094: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
5095: &escape($message),$server);
1.662 raeburn 5096: return $status;
5097: }
5098:
1.658 raeburn 5099: sub dcmaildump {
5100: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 5101: my %returnhash=();
1.846 albertel 5102:
5103: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 5104: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
5105: &escape($enddate).':';
5106: my @esc_senders=map { &escape($_)} @$senders;
5107: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 5108: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 5109: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 5110: if (($key) && ($value)) {
5111: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 5112: }
5113: }
5114: }
5115: return %returnhash;
5116: }
1.662 raeburn 5117: # ---------------------------------------------------------- Domain roles
5118:
5119: sub get_domain_roles {
5120: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 5121: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 5122: $startdate = '.';
5123: }
1.1018 raeburn 5124: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 5125: $enddate = '.';
5126: }
1.922 raeburn 5127: my $rolelist;
5128: if (ref($roles) eq 'ARRAY') {
1.1219 raeburn 5129: $rolelist = join('&',@{$roles});
1.922 raeburn 5130: }
1.662 raeburn 5131: my %personnel = ();
1.841 albertel 5132:
5133: my %servers = &get_servers($dom,'library');
5134: foreach my $tryserver (keys(%servers)) {
5135: %{$personnel{$tryserver}}=();
5136: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
5137: &escape($startdate).':'.
5138: &escape($enddate).':'.
5139: &escape($rolelist), $tryserver))) {
5140: my ($key,$value) = split(/\=/,$line,2);
5141: if (($key) && ($value)) {
5142: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
5143: }
5144: }
1.662 raeburn 5145: }
5146: return %personnel;
5147: }
1.658 raeburn 5148:
1.1332 raeburn 5149: sub get_active_domroles {
5150: my ($dom,$roles) = @_;
5151: return () unless (ref($roles) eq 'ARRAY');
5152: my $now = time;
5153: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
5154: my %domroles;
5155: foreach my $server (keys(%dompersonnel)) {
5156: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
5157: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
5158: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
5159: }
5160: }
5161: return %domroles;
5162: }
5163:
1.1057 www 5164: # ----------------------------------------------------------- Interval timing
1.149 www 5165:
1.1153 www 5166: {
5167: # Caches needed for speedup of navmaps
5168: # We don't want to cache this for very long at all (5 seconds at most)
5169: #
5170: # The user for whom we cache
5171: my $cachedkey='';
5172: # The cached times for this user
5173: my %cachedtimes=();
5174: # When this was last done
1.1282 raeburn 5175: my $cachedtime='';
1.1153 www 5176:
5177: sub load_all_first_access {
1.1308 raeburn 5178: my ($uname,$udom,$ignorecache)=@_;
1.1156 www 5179: if (($cachedkey eq $uname.':'.$udom) &&
1.1308 raeburn 5180: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) &&
5181: (!$ignorecache)) {
1.1154 raeburn 5182: return;
5183: }
5184: $cachedtime=time;
5185: $cachedkey=$uname.':'.$udom;
5186: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 5187: }
5188:
1.504 albertel 5189: sub get_first_access {
1.1308 raeburn 5190: my ($type,$argsymb,$argmap,$ignorecache)=@_;
1.790 albertel 5191: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 5192: if ($argsymb) { $symb=$argsymb; }
5193: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 5194: if ($argmap) { $map = $argmap; }
1.926 albertel 5195: if ($type eq 'course') {
5196: $res='course';
5197: } elsif ($type eq 'map') {
1.588 albertel 5198: $res=&symbread($map);
5199: } else {
5200: $res=$symb;
5201: }
1.1308 raeburn 5202: &load_all_first_access($uname,$udom,$ignorecache);
1.1153 www 5203: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 5204: }
5205:
5206: sub set_first_access {
1.1162 raeburn 5207: my ($type,$interval)=@_;
1.790 albertel 5208: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 5209: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 5210: if ($type eq 'course') {
5211: $res='course';
5212: } elsif ($type eq 'map') {
1.588 albertel 5213: $res=&symbread($map);
5214: } else {
5215: $res=$symb;
5216: }
1.1153 www 5217: $cachedkey='';
1.1162 raeburn 5218: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 5219: if (!$firstaccess) {
1.1162 raeburn 5220: my $start = time;
5221: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
5222: $udom,$uname);
5223: if ($putres eq 'ok') {
5224: &put('timerinterval',{"$courseid\0$res"=>$interval},
5225: $udom,$uname);
5226: &appenv(
5227: {
5228: 'course.'.$courseid.'.firstaccess.'.$res => $start,
5229: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
5230: }
5231: );
1.1365 raeburn 5232: if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
5233: $cachedtimes{"$courseid\0$res"} = $start;
5234: }
1.1162 raeburn 5235: }
5236: return $putres;
1.505 albertel 5237: }
5238: return 'already_set';
1.504 albertel 5239: }
1.1153 www 5240: }
1.1282 raeburn 5241:
1.110 www 5242: # --------------------------------------------- Set Expire Date for Spreadsheet
5243:
5244: sub expirespread {
5245: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 5246: my $cid=$env{'request.course.id'};
1.110 www 5247: if ($cid) {
5248: my $now=time;
5249: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 5250: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
5251: $env{'course.'.$cid.'.num'}.
1.110 www 5252: ':nohist_expirationdates:'.
5253: &escape($key).'='.$now,
1.620 albertel 5254: $env{'course.'.$cid.'.home'})
1.110 www 5255: }
5256: return 'ok';
1.14 www 5257: }
5258:
1.109 www 5259: # ----------------------------------------------------- Devalidate Spreadsheets
5260:
5261: sub devalidate {
1.325 www 5262: my ($symb,$uname,$udom)=@_;
1.620 albertel 5263: my $cid=$env{'request.course.id'};
1.109 www 5264: if ($cid) {
1.391 matthew 5265: # delete the stored spreadsheets for
5266: # - the student level sheet of this user in course's homespace
5267: # - the assessment level sheet for this resource
5268: # for this user in user's homespace
1.553 albertel 5269: # - current conditional state info
1.325 www 5270: my $key=$uname.':'.$udom.':';
1.109 www 5271: my $status=
1.299 matthew 5272: &del('nohist_calculatedsheets',
1.391 matthew 5273: [$key.'studentcalc:'],
1.620 albertel 5274: $env{'course.'.$cid.'.domain'},
5275: $env{'course.'.$cid.'.num'})
1.133 albertel 5276: .' '.
5277: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 5278: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 5279: unless ($status eq 'ok ok') {
5280: &logthis('Could not devalidate spreadsheet '.
1.325 www 5281: $uname.' at '.$udom.' for '.
1.109 www 5282: $symb.': '.$status);
1.133 albertel 5283: }
1.553 albertel 5284: &delenv('user.state.'.$cid);
1.109 www 5285: }
5286: }
5287:
1.265 albertel 5288: sub get_scalar {
5289: my ($string,$end) = @_;
5290: my $value;
5291: if ($$string =~ s/^([^&]*?)($end)/$2/) {
5292: $value = $1;
5293: } elsif ($$string =~ s/^([^&]*?)&//) {
5294: $value = $1;
5295: }
5296: return &unescape($value);
5297: }
5298:
5299: sub array2str {
5300: my (@array) = @_;
5301: my $result=&arrayref2str(\@array);
5302: $result=~s/^__ARRAY_REF__//;
5303: $result=~s/__END_ARRAY_REF__$//;
5304: return $result;
5305: }
5306:
1.204 albertel 5307: sub arrayref2str {
5308: my ($arrayref) = @_;
1.265 albertel 5309: my $result='__ARRAY_REF__';
1.204 albertel 5310: foreach my $elem (@$arrayref) {
1.265 albertel 5311: if(ref($elem) eq 'ARRAY') {
5312: $result.=&arrayref2str($elem).'&';
5313: } elsif(ref($elem) eq 'HASH') {
5314: $result.=&hashref2str($elem).'&';
5315: } elsif(ref($elem)) {
5316: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 5317: } else {
5318: $result.=&escape($elem).'&';
5319: }
5320: }
5321: $result=~s/\&$//;
1.265 albertel 5322: $result .= '__END_ARRAY_REF__';
1.204 albertel 5323: return $result;
5324: }
5325:
1.168 albertel 5326: sub hash2str {
1.204 albertel 5327: my (%hash) = @_;
5328: my $result=&hashref2str(\%hash);
1.265 albertel 5329: $result=~s/^__HASH_REF__//;
5330: $result=~s/__END_HASH_REF__$//;
1.204 albertel 5331: return $result;
5332: }
5333:
5334: sub hashref2str {
5335: my ($hashref)=@_;
1.265 albertel 5336: my $result='__HASH_REF__';
1.800 albertel 5337: foreach my $key (sort(keys(%$hashref))) {
5338: if (ref($key) eq 'ARRAY') {
5339: $result.=&arrayref2str($key).'=';
5340: } elsif (ref($key) eq 'HASH') {
5341: $result.=&hashref2str($key).'=';
5342: } elsif (ref($key)) {
1.265 albertel 5343: $result.='=';
1.800 albertel 5344: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 5345: } else {
1.1132 raeburn 5346: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 5347: }
5348:
1.800 albertel 5349: if(ref($hashref->{$key}) eq 'ARRAY') {
5350: $result.=&arrayref2str($hashref->{$key}).'&';
5351: } elsif(ref($hashref->{$key}) eq 'HASH') {
5352: $result.=&hashref2str($hashref->{$key}).'&';
5353: } elsif(ref($hashref->{$key})) {
1.265 albertel 5354: $result.='&';
1.800 albertel 5355: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 5356: } else {
1.800 albertel 5357: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 5358: }
5359: }
1.168 albertel 5360: $result=~s/\&$//;
1.265 albertel 5361: $result .= '__END_HASH_REF__';
1.168 albertel 5362: return $result;
5363: }
5364:
5365: sub str2hash {
1.265 albertel 5366: my ($string)=@_;
5367: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
5368: return %$hash;
5369: }
5370:
5371: sub str2hashref {
1.168 albertel 5372: my ($string) = @_;
1.265 albertel 5373:
5374: my %hash;
5375:
5376: if($string !~ /^__HASH_REF__/) {
5377: if (! ($string eq '' || !defined($string))) {
5378: $hash{'error'}='Not hash reference';
5379: }
5380: return (\%hash, $string);
5381: }
5382:
5383: $string =~ s/^__HASH_REF__//;
5384:
5385: while($string !~ /^__END_HASH_REF__/) {
5386: #key
5387: my $key='';
5388: if($string =~ /^__HASH_REF__/) {
5389: ($key, $string)=&str2hashref($string);
5390: if(defined($key->{'error'})) {
5391: $hash{'error'}='Bad data';
5392: return (\%hash, $string);
5393: }
5394: } elsif($string =~ /^__ARRAY_REF__/) {
5395: ($key, $string)=&str2arrayref($string);
5396: if($key->[0] eq 'Array reference error') {
5397: $hash{'error'}='Bad data';
5398: return (\%hash, $string);
5399: }
5400: } else {
5401: $string =~ s/^(.*?)=//;
1.267 albertel 5402: $key=&unescape($1);
1.265 albertel 5403: }
5404: $string =~ s/^=//;
5405:
5406: #value
5407: my $value='';
5408: if($string =~ /^__HASH_REF__/) {
5409: ($value, $string)=&str2hashref($string);
5410: if(defined($value->{'error'})) {
5411: $hash{'error'}='Bad data';
5412: return (\%hash, $string);
5413: }
5414: } elsif($string =~ /^__ARRAY_REF__/) {
5415: ($value, $string)=&str2arrayref($string);
5416: if($value->[0] eq 'Array reference error') {
5417: $hash{'error'}='Bad data';
5418: return (\%hash, $string);
5419: }
5420: } else {
5421: $value=&get_scalar(\$string,'__END_HASH_REF__');
5422: }
5423: $string =~ s/^&//;
5424:
5425: $hash{$key}=$value;
1.204 albertel 5426: }
1.265 albertel 5427:
5428: $string =~ s/^__END_HASH_REF__//;
5429:
5430: return (\%hash, $string);
1.204 albertel 5431: }
5432:
5433: sub str2array {
1.265 albertel 5434: my ($string)=@_;
5435: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
5436: return @$array;
5437: }
5438:
5439: sub str2arrayref {
1.204 albertel 5440: my ($string) = @_;
1.265 albertel 5441: my @array;
5442:
5443: if($string !~ /^__ARRAY_REF__/) {
5444: if (! ($string eq '' || !defined($string))) {
5445: $array[0]='Array reference error';
5446: }
5447: return (\@array, $string);
5448: }
5449:
5450: $string =~ s/^__ARRAY_REF__//;
5451:
5452: while($string !~ /^__END_ARRAY_REF__/) {
5453: my $value='';
5454: if($string =~ /^__HASH_REF__/) {
5455: ($value, $string)=&str2hashref($string);
5456: if(defined($value->{'error'})) {
5457: $array[0] ='Array reference error';
5458: return (\@array, $string);
5459: }
5460: } elsif($string =~ /^__ARRAY_REF__/) {
5461: ($value, $string)=&str2arrayref($string);
5462: if($value->[0] eq 'Array reference error') {
5463: $array[0] ='Array reference error';
5464: return (\@array, $string);
5465: }
5466: } else {
5467: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
5468: }
5469: $string =~ s/^&//;
5470:
5471: push(@array, $value);
1.191 harris41 5472: }
1.265 albertel 5473:
5474: $string =~ s/^__END_ARRAY_REF__//;
5475:
5476: return (\@array, $string);
1.168 albertel 5477: }
5478:
1.167 albertel 5479: # -------------------------------------------------------------------Temp Store
5480:
1.168 albertel 5481: sub tmpreset {
5482: my ($symb,$namespace,$domain,$stuname) = @_;
5483: if (!$symb) {
5484: $symb=&symbread();
1.620 albertel 5485: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5486: }
5487: $symb=escape($symb);
5488:
1.620 albertel 5489: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 5490: $namespace=~s/\//\_/g;
5491: $namespace=~s/\W//g;
5492:
1.620 albertel 5493: if (!$domain) { $domain=$env{'user.domain'}; }
5494: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5495: if ($domain eq 'public' && $stuname eq 'public') {
5496: $stuname=$ENV{'REMOTE_ADDR'};
5497: }
1.1117 foxr 5498: my $path=LONCAPA::tempdir();
1.168 albertel 5499: my %hash;
5500: if (tie(%hash,'GDBM_File',
5501: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5502: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 5503: foreach my $key (keys(%hash)) {
1.180 albertel 5504: if ($key=~ /:$symb/) {
1.168 albertel 5505: delete($hash{$key});
5506: }
5507: }
5508: }
5509: }
5510:
1.167 albertel 5511: sub tmpstore {
1.168 albertel 5512: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
5513:
5514: if (!$symb) {
5515: $symb=&symbread();
1.620 albertel 5516: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5517: }
5518: $symb=escape($symb);
5519:
5520: if (!$namespace) {
5521: # I don't think we would ever want to store this for a course.
5522: # it seems this will only be used if we don't have a course.
1.620 albertel 5523: #$namespace=$env{'request.course.id'};
1.168 albertel 5524: #if (!$namespace) {
1.620 albertel 5525: $namespace=$env{'request.state'};
1.168 albertel 5526: #}
5527: }
5528: $namespace=~s/\//\_/g;
5529: $namespace=~s/\W//g;
1.620 albertel 5530: if (!$domain) { $domain=$env{'user.domain'}; }
5531: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5532: if ($domain eq 'public' && $stuname eq 'public') {
5533: $stuname=$ENV{'REMOTE_ADDR'};
5534: }
1.168 albertel 5535: my $now=time;
5536: my %hash;
1.1117 foxr 5537: my $path=LONCAPA::tempdir();
1.168 albertel 5538: if (tie(%hash,'GDBM_File',
5539: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5540: &GDBM_WRCREAT(),0640)) {
1.168 albertel 5541: $hash{"version:$symb"}++;
5542: my $version=$hash{"version:$symb"};
5543: my $allkeys='';
5544: foreach my $key (keys(%$storehash)) {
5545: $allkeys.=$key.':';
1.591 albertel 5546: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 5547: }
5548: $hash{"$version:$symb:timestamp"}=$now;
5549: $allkeys.='timestamp';
5550: $hash{"$version:keys:$symb"}=$allkeys;
5551: if (untie(%hash)) {
5552: return 'ok';
5553: } else {
5554: return "error:$!";
5555: }
5556: } else {
5557: return "error:$!";
5558: }
5559: }
1.167 albertel 5560:
1.168 albertel 5561: # -----------------------------------------------------------------Temp Restore
1.167 albertel 5562:
1.168 albertel 5563: sub tmprestore {
5564: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 5565:
1.168 albertel 5566: if (!$symb) {
5567: $symb=&symbread();
1.620 albertel 5568: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5569: }
5570: $symb=escape($symb);
5571:
1.620 albertel 5572: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 5573:
1.620 albertel 5574: if (!$domain) { $domain=$env{'user.domain'}; }
5575: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5576: if ($domain eq 'public' && $stuname eq 'public') {
5577: $stuname=$ENV{'REMOTE_ADDR'};
5578: }
1.168 albertel 5579: my %returnhash;
5580: $namespace=~s/\//\_/g;
5581: $namespace=~s/\W//g;
5582: my %hash;
1.1117 foxr 5583: my $path=LONCAPA::tempdir();
1.168 albertel 5584: if (tie(%hash,'GDBM_File',
5585: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5586: &GDBM_READER(),0640)) {
1.168 albertel 5587: my $version=$hash{"version:$symb"};
5588: $returnhash{'version'}=$version;
5589: my $scope;
5590: for ($scope=1;$scope<=$version;$scope++) {
5591: my $vkeys=$hash{"$scope:keys:$symb"};
5592: my @keys=split(/:/,$vkeys);
5593: my $key;
5594: $returnhash{"$scope:keys"}=$vkeys;
5595: foreach $key (@keys) {
1.591 albertel 5596: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
5597: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 5598: }
5599: }
1.168 albertel 5600: if (!(untie(%hash))) {
5601: return "error:$!";
5602: }
5603: } else {
5604: return "error:$!";
5605: }
5606: return %returnhash;
1.167 albertel 5607: }
5608:
1.9 www 5609: # ----------------------------------------------------------------------- Store
5610:
5611: sub store {
1.1269 raeburn 5612: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5613: my $home='';
5614:
1.168 albertel 5615: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5616:
1.213 www 5617: $symb=&symbclean($symb);
1.122 albertel 5618: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5619:
1.620 albertel 5620: if (!$domain) { $domain=$env{'user.domain'}; }
5621: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5622:
5623: &devalidate($symb,$stuname,$domain);
1.109 www 5624:
5625: $symb=escape($symb);
1.187 www 5626: if (!$namespace) {
1.620 albertel 5627: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5628: return '';
5629: }
5630: }
1.620 albertel 5631: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5632:
5633: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5634: $$storehash{'host'}=$perlvar{'lonHostID'};
5635:
1.12 www 5636: my $namevalue='';
1.800 albertel 5637: foreach my $key (keys(%$storehash)) {
5638: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5639: }
1.12 www 5640: $namevalue=~s/\&$//;
1.187 www 5641: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.1269 raeburn 5642: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.9 www 5643: }
5644:
1.47 www 5645: # -------------------------------------------------------------- Critical Store
5646:
5647: sub cstore {
1.1269 raeburn 5648: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5649: my $home='';
5650:
1.168 albertel 5651: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5652:
1.213 www 5653: $symb=&symbclean($symb);
1.122 albertel 5654: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5655:
1.620 albertel 5656: if (!$domain) { $domain=$env{'user.domain'}; }
5657: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5658:
5659: &devalidate($symb,$stuname,$domain);
1.109 www 5660:
5661: $symb=escape($symb);
1.187 www 5662: if (!$namespace) {
1.620 albertel 5663: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5664: return '';
5665: }
5666: }
1.620 albertel 5667: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5668:
5669: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5670: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 5671:
1.47 www 5672: my $namevalue='';
1.800 albertel 5673: foreach my $key (keys(%$storehash)) {
5674: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5675: }
1.47 www 5676: $namevalue=~s/\&$//;
1.187 www 5677: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 5678: return critical
1.1269 raeburn 5679: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.47 www 5680: }
5681:
1.9 www 5682: # --------------------------------------------------------------------- Restore
5683:
5684: sub restore {
1.124 www 5685: my ($symb,$namespace,$domain,$stuname) = @_;
5686: my $home='';
5687:
1.168 albertel 5688: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5689:
1.122 albertel 5690: if (!$symb) {
1.1224 raeburn 5691: return if ($namespace eq 'courserequests');
5692: unless ($symb=escape(&symbread())) { return ''; }
1.122 albertel 5693: } else {
1.1224 raeburn 5694: unless ($namespace eq 'courserequests') {
5695: $symb=&escape(&symbclean($symb));
5696: }
1.122 albertel 5697: }
1.188 www 5698: if (!$namespace) {
1.620 albertel 5699: unless ($namespace=$env{'request.course.id'}) {
1.188 www 5700: return '';
5701: }
5702: }
1.620 albertel 5703: if (!$domain) { $domain=$env{'user.domain'}; }
5704: if (!$stuname) { $stuname=$env{'user.name'}; }
5705: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 5706: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
5707:
1.12 www 5708: my %returnhash=();
1.800 albertel 5709: foreach my $line (split(/\&/,$answer)) {
5710: my ($name,$value)=split(/\=/,$line);
1.591 albertel 5711: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 5712: }
1.75 www 5713: my $version;
5714: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 5715: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
5716: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 5717: }
1.75 www 5718: }
1.13 www 5719: return %returnhash;
1.34 www 5720: }
5721:
5722: # ---------------------------------------------------------- Course Description
1.1118 foxr 5723: #
5724: #
1.34 www 5725:
5726: sub coursedescription {
1.731 albertel 5727: my ($courseid,$args)=@_;
1.34 www 5728: $courseid=~s/^\///;
1.49 www 5729: $courseid=~s/\_/\//g;
1.34 www 5730: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 5731: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 5732: my $normalid=$cdomain.'_'.$cnum;
5733: # need to always cache even if we get errors otherwise we keep
5734: # trying and trying and trying to get the course description.
5735: my %envhash=();
5736: my %returnhash=();
1.731 albertel 5737:
5738: my $expiretime=600;
5739: if ($env{'request.course.id'} eq $normalid) {
5740: $expiretime=120;
5741: }
5742:
5743: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
5744: if (!$args->{'freshen_cache'}
5745: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
5746: foreach my $key (keys(%env)) {
5747: next if ($key !~ /^\Q$prefix\E(.*)/);
5748: my ($setting) = $1;
5749: $returnhash{$setting} = $env{$key};
5750: }
5751: return %returnhash;
5752: }
5753:
1.1118 foxr 5754: # get the data again
5755:
1.731 albertel 5756: if (!$args->{'one_time'}) {
5757: $envhash{'course.'.$normalid.'.last_cache'}=time;
5758: }
1.811 albertel 5759:
1.34 www 5760: if ($chome ne 'no_host') {
1.302 albertel 5761: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 5762: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 5763: my $username = $env{'user.name'}; # Defult username
5764: if(defined $args->{'user'}) {
5765: $username = $args->{'user'};
5766: }
1.129 albertel 5767: $returnhash{'home'}= $chome;
5768: $returnhash{'domain'} = $cdomain;
5769: $returnhash{'num'} = $cnum;
1.741 raeburn 5770: if (!defined($returnhash{'type'})) {
5771: $returnhash{'type'} = 'Course';
5772: }
1.130 albertel 5773: while (my ($name,$value) = each %returnhash) {
1.53 www 5774: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 5775: }
1.270 www 5776: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 5777: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 5778: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 5779: $envhash{'course.'.$normalid.'.home'}=$chome;
5780: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
5781: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 5782: }
5783: }
1.731 albertel 5784: if (!$args->{'one_time'}) {
1.949 raeburn 5785: &appenv(\%envhash);
1.731 albertel 5786: }
1.302 albertel 5787: return %returnhash;
1.461 www 5788: }
5789:
1.1080 raeburn 5790: sub update_released_required {
5791: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
5792: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
5793: $cid = $env{'request.course.id'};
5794: $cdom = $env{'course.'.$cid.'.domain'};
5795: $cnum = $env{'course.'.$cid.'.num'};
5796: $chome = $env{'course.'.$cid.'.home'};
5797: }
5798: if ($needsrelease) {
5799: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
5800: my $needsupdate;
5801: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
5802: $needsupdate = 1;
5803: } else {
5804: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
5805: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
5806: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
5807: $needsupdate = 1;
5808: }
5809: }
5810: if ($needsupdate) {
5811: my %needshash = (
5812: 'internal.releaserequired' => $needsrelease,
5813: );
5814: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
5815: if ($putresult eq 'ok') {
5816: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
5817: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
5818: if (ref($crsinfo{$cid}) eq 'HASH') {
5819: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
5820: &courseidput($cdom,\%crsinfo,$chome,'notime');
5821: }
5822: }
5823: }
5824: }
5825: return;
5826: }
5827:
1.461 www 5828: # -------------------------------------------------See if a user is privileged
5829:
5830: sub privileged {
1.1219 raeburn 5831: my ($username,$domain,$possdomains,$possroles)=@_;
1.1170 droeschl 5832: my $now = time;
1.1219 raeburn 5833: my $roles;
5834: if (ref($possroles) eq 'ARRAY') {
5835: $roles = $possroles;
5836: } else {
5837: $roles = ['dc','su'];
5838: }
5839: if (ref($possdomains) eq 'ARRAY') {
5840: my %privileged = &privileged_by_domain($possdomains,$roles);
5841: foreach my $dom (@{$possdomains}) {
5842: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
5843: (ref($privileged{$dom}) eq 'HASH')) {
5844: foreach my $role (@{$roles}) {
5845: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5846: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
5847: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
5848: return 1 unless (($end && $end < $now) ||
5849: ($start && $start > $now));
5850: }
5851: }
5852: }
5853: }
5854: }
5855: } else {
5856: my %rolesdump = &dump("roles", $domain, $username) or return 0;
5857: my $now = time;
1.1170 droeschl 5858:
1.1275 musolffc 5859: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
1.1170 droeschl 5860: my ($trole, $tend, $tstart) = split(/_/, $role);
1.1219 raeburn 5861: if (grep(/^\Q$trole\E$/,@{$roles})) {
1.1170 droeschl 5862: return 1 unless ($tend && $tend < $now)
1.1219 raeburn 5863: or ($tstart && $tstart > $now);
1.1170 droeschl 5864: }
1.1219 raeburn 5865: }
5866: }
5867: return 0;
5868: }
1.1170 droeschl 5869:
1.1219 raeburn 5870: sub privileged_by_domain {
5871: my ($domains,$roles) = @_;
5872: my %privileged = ();
5873: my $cachetime = 60*60*24;
5874: my $now = time;
5875: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
5876: return %privileged;
5877: }
5878: foreach my $dom (@{$domains}) {
5879: next if (ref($privileged{$dom}) eq 'HASH');
5880: my $needroles;
5881: foreach my $role (@{$roles}) {
5882: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
5883: if (defined($cached)) {
5884: if (ref($result) eq 'HASH') {
5885: $privileged{$dom}{$role} = $result;
5886: }
5887: } else {
5888: $needroles = 1;
5889: }
5890: }
5891: if ($needroles) {
5892: my %dompersonnel = &get_domain_roles($dom,$roles);
5893: $privileged{$dom} = {};
5894: foreach my $server (keys(%dompersonnel)) {
5895: if (ref($dompersonnel{$server}) eq 'HASH') {
5896: foreach my $item (keys(%{$dompersonnel{$server}})) {
5897: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
5898: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
5899: next if ($end && $end < $now);
5900: $privileged{$dom}{$trole}{$uname.':'.$udom} =
5901: $dompersonnel{$server}{$item};
5902: }
5903: }
5904: }
5905: if (ref($privileged{$dom}) eq 'HASH') {
5906: foreach my $role (@{$roles}) {
5907: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5908: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
5909: } else {
5910: my %hash = ();
5911: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
5912: }
5913: }
5914: }
5915: }
5916: }
5917: return %privileged;
1.9 www 5918: }
1.1 albertel 5919:
1.103 harris41 5920: # -------------------------------------------------------- Get user privileges
1.11 www 5921:
5922: sub rolesinit {
1.1169 droeschl 5923: my ($domain, $username) = @_;
5924: my %userroles = ('user.login.time' => time);
5925: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
5926:
5927: # firstaccess and timerinterval are related to timed maps/resources.
5928: # also, blocking can be triggered by an activating timer
5929: # it's saved in the user's %env.
5930: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
5931: my %timerinterval = &dump('timerinterval', $domain, $username);
5932: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
5933: %timerintchk, %timerintenv);
5934:
1.1162 raeburn 5935: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 5936: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 5937: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
5938: }
1.1169 droeschl 5939:
1.1162 raeburn 5940: foreach my $key (keys(%timerinterval)) {
5941: my ($cid,$rest) = split(/\0/,$key);
5942: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
5943: }
1.1169 droeschl 5944:
1.11 www 5945: my %allroles=();
1.1162 raeburn 5946: my %allgroups=();
1.11 www 5947:
1.1274 raeburn 5948: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
1.1169 droeschl 5949: my $role = $rolesdump{$area};
5950: $area =~ s/\_\w\w$//;
5951:
5952: my ($trole, $tend, $tstart, $group_privs);
5953:
5954: if ($role =~ /^cr/) {
5955: # Custom role, defined by a user
5956: # e.g., user.role.cr/msu/smith/mynewrole
5957: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
5958: $trole = $1;
5959: ($tend, $tstart) = split('_', $2);
5960: } else {
5961: $trole = $role;
5962: }
5963: } elsif ($role =~ m|^gr/|) {
5964: # Role of member in a group, defined within a course/community
5965: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
5966: ($trole, $tend, $tstart) = split(/_/, $role);
5967: next if $tstart eq '-1';
5968: ($trole, $group_privs) = split(/\//, $trole);
5969: $group_privs = &unescape($group_privs);
5970: } else {
5971: # Just a normal role, defined in roles.tab
5972: ($trole, $tend, $tstart) = split(/_/,$role);
5973: }
5974:
5975: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
5976: $username);
5977: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
5978:
5979: # role expired or not available yet?
5980: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
5981: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
5982:
5983: next if $area eq '' or $trole eq '';
5984:
5985: my $spec = "$trole.$area";
5986: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5987:
5988: if ($trole =~ /^cr\//) {
5989: # Custom role, defined by a user
5990: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5991: } elsif ($trole eq 'gr') {
5992: # Role of a member in a group, defined within a course/community
5993: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5994: next;
5995: } else {
5996: # Normal role, defined in roles.tab
5997: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5998: }
5999:
6000: my $cid = $tdomain.'_'.$trest;
6001: unless ($firstaccchk{$cid}) {
6002: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
6003: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
6004: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
6005: $coursetimerstarts{$cid}{$item};
6006: }
6007: }
6008: $firstaccchk{$cid} = 1;
6009: }
6010: unless ($timerintchk{$cid}) {
6011: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
6012: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
6013: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
6014: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 6015: }
1.12 www 6016: }
1.1169 droeschl 6017: $timerintchk{$cid} = 1;
1.191 harris41 6018: }
1.11 www 6019: }
1.1169 droeschl 6020:
1.1341 raeburn 6021: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,
6022: \%allroles, \%allgroups);
1.1169 droeschl 6023: $env{'user.adv'} = $userroles{'user.adv'};
1.1341 raeburn 6024: $env{'user.rar'} = $userroles{'user.rar'};
1.1169 droeschl 6025:
1.1162 raeburn 6026: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 6027: }
6028:
1.567 raeburn 6029: sub set_arearole {
1.1215 raeburn 6030: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
6031: unless ($nolog) {
1.567 raeburn 6032: # log the associated role with the area
1.1215 raeburn 6033: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
6034: }
1.743 albertel 6035: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 6036: }
6037:
6038: sub custom_roleprivs {
6039: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
6040: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
1.1250 raeburn 6041: my $homsvr = &homeserver($rauthor,$rdomain);
1.838 albertel 6042: if (&hostname($homsvr) ne '') {
1.567 raeburn 6043: my ($rdummy,$roledef)=
6044: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
6045: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
6046: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
6047: if (defined($syspriv)) {
1.1043 raeburn 6048: if ($trest =~ /^$match_community$/) {
6049: $syspriv =~ s/bre\&S//;
6050: }
1.567 raeburn 6051: $$allroles{'cm./'}.=':'.$syspriv;
6052: $$allroles{$spec.'./'}.=':'.$syspriv;
6053: }
6054: if ($tdomain ne '') {
6055: if (defined($dompriv)) {
6056: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
6057: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
6058: }
6059: if (($trest ne '') && (defined($coursepriv))) {
1.1332 raeburn 6060: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
6061: my $rolename = $1;
6062: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
6063: }
1.567 raeburn 6064: $$allroles{'cm.'.$area}.=':'.$coursepriv;
6065: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
6066: }
6067: }
6068: }
6069: }
6070: }
6071:
1.1332 raeburn 6072: sub course_adhocrole_privs {
6073: my ($rolename,$cdom,$cnum,$coursepriv) = @_;
6074: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
6075: if ($overrides{"internal.adhocpriv.$rolename"}) {
6076: my (%currprivs,%storeprivs);
6077: foreach my $item (split(/:/,$coursepriv)) {
6078: my ($priv,$restrict) = split(/\&/,$item);
6079: $currprivs{$priv} = $restrict;
6080: }
6081: my (%possadd,%possremove,%full);
6082: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
6083: my ($priv,$restrict)=split(/\&/,$item);
6084: $full{$priv} = $restrict;
6085: }
6086: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
6087: next if ($item eq '');
6088: my ($rule,$rest) = split(/=/,$item);
6089: next unless (($rule eq 'off') || ($rule eq 'on'));
6090: foreach my $priv (split(/:/,$rest)) {
6091: if ($priv ne '') {
6092: if ($rule eq 'off') {
6093: $possremove{$priv} = 1;
6094: } else {
6095: $possadd{$priv} = 1;
6096: }
6097: }
6098: }
6099: }
6100: foreach my $priv (sort(keys(%full))) {
6101: if (exists($currprivs{$priv})) {
6102: unless (exists($possremove{$priv})) {
6103: $storeprivs{$priv} = $currprivs{$priv};
6104: }
6105: } elsif (exists($possadd{$priv})) {
6106: $storeprivs{$priv} = $full{$priv};
6107: }
6108: }
6109: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
6110: }
6111: return $coursepriv;
6112: }
6113:
1.678 raeburn 6114: sub group_roleprivs {
6115: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
6116: my $access = 1;
6117: my $now = time;
6118: if (($tend!=0) && ($tend<$now)) { $access = 0; }
6119: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
6120: if ($access) {
1.811 albertel 6121: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 6122: $$allgroups{$course}{$group} .=':'.$group_privs;
6123: }
6124: }
1.567 raeburn 6125:
6126: sub standard_roleprivs {
6127: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
6128: if (defined($pr{$trole.':s'})) {
6129: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
6130: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
6131: }
6132: if ($tdomain ne '') {
6133: if (defined($pr{$trole.':d'})) {
6134: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
6135: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
6136: }
6137: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
6138: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
6139: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
6140: }
6141: }
6142: }
6143:
6144: sub set_userprivs {
1.1064 raeburn 6145: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 6146: my $author=0;
6147: my $adv=0;
1.1341 raeburn 6148: my $rar=0;
1.678 raeburn 6149: my %grouproles = ();
6150: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 6151: my @groupkeys;
1.1000 raeburn 6152: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 6153: push(@groupkeys,$role);
6154: }
6155: if (ref($groups_roles) eq 'HASH') {
6156: foreach my $key (keys(%{$groups_roles})) {
6157: unless (grep(/^\Q$key\E$/,@groupkeys)) {
6158: push(@groupkeys,$key);
6159: }
6160: }
6161: }
6162: if (@groupkeys > 0) {
6163: foreach my $role (@groupkeys) {
6164: my ($trole,$area,$sec,$extendedarea);
6165: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
6166: $trole = $1;
6167: $area = $2;
6168: $sec = $3;
6169: $extendedarea = $area.$sec;
6170: if (exists($$allgroups{$area})) {
6171: foreach my $group (keys(%{$$allgroups{$area}})) {
6172: my $spec = $trole.'.'.$extendedarea;
6173: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 6174: $$allgroups{$area}{$group};
1.1064 raeburn 6175: }
1.678 raeburn 6176: }
6177: }
6178: }
6179: }
6180: }
1.800 albertel 6181: foreach my $group (keys(%grouproles)) {
6182: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 6183: }
1.800 albertel 6184: foreach my $role (keys(%{$allroles})) {
6185: my %thesepriv;
1.941 raeburn 6186: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 6187: foreach my $item (split(/:/,$$allroles{$role})) {
6188: if ($item ne '') {
6189: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 6190: if ($restrictions eq '') {
6191: $thesepriv{$privilege}='F';
6192: } elsif ($thesepriv{$privilege} ne 'F') {
6193: $thesepriv{$privilege}.=$restrictions;
6194: }
6195: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
1.1341 raeburn 6196: if ($thesepriv{'rar'} eq 'F') { $rar=1; }
1.567 raeburn 6197: }
6198: }
6199: my $thesestr='';
1.1104 raeburn 6200: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 6201: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
6202: }
6203: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 6204: }
1.1341 raeburn 6205: return ($author,$adv,$rar);
1.567 raeburn 6206: }
6207:
1.994 raeburn 6208: sub role_status {
1.1104 raeburn 6209: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 6210: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.1250 raeburn 6211: my ($one,$two) = split(m{\./},$rolekey,2);
6212: (undef,undef,$$role) = split(/\./,$one,3);
1.994 raeburn 6213: unless (!defined($$role) || $$role eq '') {
1.1251 raeburn 6214: $$where = '/'.$two;
1.994 raeburn 6215: $$trolecode=$$role.'.'.$$where;
6216: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
6217: $$tstatus='is';
1.1104 raeburn 6218: if ($$tstart && $$tstart>$update) {
1.994 raeburn 6219: $$tstatus='future';
1.1034 raeburn 6220: if ($$tstart<$now) {
6221: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 6222: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 6223: my (%allroles,%allgroups,$group_privs,
6224: %groups_roles,@rolecodes);
1.1002 raeburn 6225: my %userroles = (
6226: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
6227: );
1.1064 raeburn 6228: @rolecodes = ('cm');
1.1002 raeburn 6229: my $spec=$$role.'.'.$$where;
6230: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
6231: if ($$role =~ /^cr\//) {
6232: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 6233: push(@rolecodes,'cr');
1.1002 raeburn 6234: } elsif ($$role eq 'gr') {
1.1064 raeburn 6235: push(@rolecodes,$$role);
1.1002 raeburn 6236: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
6237: $env{'user.name'});
1.1064 raeburn 6238: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 6239: (undef,my $group_privs) = split(/\//,$trole);
6240: $group_privs = &unescape($group_privs);
6241: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 6242: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 6243: &get_groups_roles($tdomain,$trest,
6244: \%course_roles,\@rolecodes,
6245: \%groups_roles);
1.1002 raeburn 6246: } else {
1.1064 raeburn 6247: push(@rolecodes,$$role);
1.1002 raeburn 6248: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
6249: }
1.1341 raeburn 6250: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,
6251: \%groups_roles);
1.1064 raeburn 6252: &appenv(\%userroles,\@rolecodes);
1.1342 raeburn 6253: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1002 raeburn 6254: }
6255: }
1.1034 raeburn 6256: $$tstatus = 'is';
1.1002 raeburn 6257: }
1.994 raeburn 6258: }
6259: if ($$tend) {
1.1104 raeburn 6260: if ($$tend<$update) {
1.994 raeburn 6261: $$tstatus='expired';
6262: } elsif ($$tend<$now) {
6263: $$tstatus='will_not';
6264: }
6265: }
6266: }
6267: }
6268: }
6269:
1.1104 raeburn 6270: sub get_groups_roles {
6271: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
6272: return unless((ref($cdom_courseroles) eq 'HASH') &&
6273: (ref($rolecodes) eq 'ARRAY') &&
6274: (ref($groups_roles) eq 'HASH'));
6275: if (keys(%{$cdom_courseroles}) > 0) {
6276: my ($cnum) = ($rest =~ /^($match_courseid)/);
6277: if ($cdom ne '' && $cnum ne '') {
6278: foreach my $key (keys(%{$cdom_courseroles})) {
6279: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
6280: my $crsrole = $1;
6281: my $crssec = $2;
6282: if ($crsrole =~ /^cr/) {
6283: unless (grep(/^cr$/,@{$rolecodes})) {
6284: push(@{$rolecodes},'cr');
6285: }
6286: } else {
6287: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
6288: push(@{$rolecodes},$crsrole);
6289: }
6290: }
6291: my $rolekey = "$crsrole./$cdom/$cnum";
6292: if ($crssec ne '') {
6293: $rolekey .= "/$crssec";
6294: }
6295: $rolekey .= './';
6296: $groups_roles->{$rolekey} = $rolecodes;
6297: }
6298: }
6299: }
6300: }
6301: return;
6302: }
6303:
6304: sub delete_env_groupprivs {
6305: my ($where,$courseroles,$possroles) = @_;
6306: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
6307: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
6308: unless (ref($courseroles->{$udom}) eq 'HASH') {
6309: %{$courseroles->{$udom}} =
6310: &get_my_roles('','','userroles',['active'],
6311: $possroles,[$udom],1);
6312: }
6313: if (ref($courseroles->{$udom}) eq 'HASH') {
6314: foreach my $item (keys(%{$courseroles->{$udom}})) {
6315: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
6316: my $area = '/'.$cdom.'/'.$cnum;
6317: my $privkey = "user.priv.$crsrole.$area";
6318: if ($crssec ne '') {
6319: $privkey .= '/'.$crssec;
6320: }
6321: $privkey .= ".$area/$group";
6322: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
6323: }
6324: }
6325: return;
6326: }
6327:
1.994 raeburn 6328: sub check_adhoc_privs {
1.1329 raeburn 6329: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;
1.994 raeburn 6330: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1329 raeburn 6331: if ($sec) {
6332: $cckey .= '/'.$sec;
6333: }
1.1185 raeburn 6334: my $setprivs;
1.994 raeburn 6335: if ($env{$cckey}) {
6336: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 6337: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 6338: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1329 raeburn 6339: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1185 raeburn 6340: $setprivs = 1;
1.994 raeburn 6341: }
6342: } else {
1.1330 raeburn 6343: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1185 raeburn 6344: $setprivs = 1;
1.994 raeburn 6345: }
1.1185 raeburn 6346: return $setprivs;
1.994 raeburn 6347: }
6348:
6349: sub set_adhoc_privileges {
1.1326 raeburn 6350: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role
1.1329 raeburn 6351: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;
1.994 raeburn 6352: my $area = '/'.$dcdom.'/'.$pickedcourse;
1.1329 raeburn 6353: if ($sec ne '') {
6354: $area .= '/'.$sec;
6355: }
1.994 raeburn 6356: my $spec = $role.'.'.$area;
6357: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
1.1215 raeburn 6358: $env{'user.name'},1);
1.1326 raeburn 6359: my %rolehash = ();
1.1332 raeburn 6360: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {
6361: my $rolename = $1;
1.1326 raeburn 6362: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
1.1332 raeburn 6363: my %domdef = &get_domain_defaults($dcdom);
6364: if (ref($domdef{'adhocroles'}) eq 'HASH') {
6365: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
6366: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
6367: }
6368: }
1.1326 raeburn 6369: } else {
6370: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
6371: }
1.1341 raeburn 6372: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
1.994 raeburn 6373: &appenv(\%userroles,[$role,'cm']);
1.1342 raeburn 6374: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1088 raeburn 6375: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
6376: &appenv( {'request.role' => $spec,
6377: 'request.role.domain' => $dcdom,
1.1332 raeburn 6378: 'request.course.sec' => $sec,
1.1088 raeburn 6379: }
6380: );
6381: my $tadv=0;
6382: if (&allowed('adv') eq 'F') { $tadv=1; }
6383: &appenv({'request.role.adv' => $tadv});
6384: }
1.994 raeburn 6385: }
6386:
1.12 www 6387: # --------------------------------------------------------------- get interface
6388:
6389: sub get {
1.131 albertel 6390: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6391: my $items='';
1.800 albertel 6392: foreach my $item (@$storearr) {
6393: $items.=&escape($item).'&';
1.191 harris41 6394: }
1.12 www 6395: $items=~s/\&$//;
1.620 albertel 6396: if (!$udomain) { $udomain=$env{'user.domain'}; }
6397: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 6398: my $uhome=&homeserver($uname,$udomain);
6399:
1.133 albertel 6400: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6401: my @pairs=split(/\&/,$rep);
1.273 albertel 6402: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
6403: return @pairs;
6404: }
1.15 www 6405: my %returnhash=();
1.42 www 6406: my $i=0;
1.800 albertel 6407: foreach my $item (@$storearr) {
6408: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6409: $i++;
1.191 harris41 6410: }
1.15 www 6411: return %returnhash;
1.27 www 6412: }
6413:
6414: # --------------------------------------------------------------- del interface
6415:
6416: sub del {
1.133 albertel 6417: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 6418: my $items='';
1.800 albertel 6419: foreach my $item (@$storearr) {
6420: $items.=&escape($item).'&';
1.191 harris41 6421: }
1.984 neumanie 6422:
1.27 www 6423: $items=~s/\&$//;
1.620 albertel 6424: if (!$udomain) { $udomain=$env{'user.domain'}; }
6425: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6426: my $uhome=&homeserver($uname,$udomain);
6427: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6428: }
6429:
6430: # -------------------------------------------------------------- dump interface
6431:
1.1180 droeschl 6432: sub unserialize {
6433: my ($rep, $escapedkeys) = @_;
6434:
6435: return {} if $rep =~ /^error/;
6436:
6437: my %returnhash=();
1.1252 raeburn 6438: foreach my $item (split(/\&/,$rep)) {
1.1180 droeschl 6439: my ($key, $value) = split(/=/, $item, 2);
6440: $key = unescape($key) unless $escapedkeys;
6441: next if $key =~ /^error: 2 /;
1.1252 raeburn 6442: $returnhash{$key} = &thaw_unescape($value);
1.1180 droeschl 6443: }
6444: #return %returnhash;
6445: return \%returnhash;
6446: }
6447:
6448: # see Lond::dump_with_regexp
6449: # if $escapedkeys hash keys won't get unescaped.
1.15 www 6450: sub dump {
1.1180 droeschl 6451: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 6452: if (!$udomain) { $udomain=$env{'user.domain'}; }
6453: if (!$uname) { $uname=$env{'user.name'}; }
6454: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 6455:
1.1266 raeburn 6456: if ($regexp) {
6457: $regexp=&escape($regexp);
6458: } else {
6459: $regexp='.';
6460: }
1.1180 droeschl 6461: if (grep { $_ eq $uhome } current_machine_ids()) {
6462: # user is hosted on this machine
1.1266 raeburn 6463: my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
1.1226 raeburn 6464: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
1.1180 droeschl 6465: return %{unserialize($reply, $escapedkeys)};
6466: }
1.1166 raeburn 6467: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 6468: my @pairs=split(/\&/,$rep);
6469: my %returnhash=();
1.1098 foxr 6470: if (!($rep =~ /^error/ )) {
6471: foreach my $item (@pairs) {
6472: my ($key,$value)=split(/=/,$item,2);
1.1180 droeschl 6473: $key = unescape($key) unless $escapedkeys;
6474: #$key = &unescape($key);
1.1098 foxr 6475: next if ($key =~ /^error: 2 /);
6476: $returnhash{$key}=&thaw_unescape($value);
6477: }
1.755 albertel 6478: }
6479: return %returnhash;
1.407 www 6480: }
6481:
1.1098 foxr 6482:
1.717 albertel 6483: # --------------------------------------------------------- dumpstore interface
6484:
6485: sub dumpstore {
6486: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1180 droeschl 6487: # same as dump but keys must be escaped. They may contain colon separated
6488: # lists of values that may themself contain colons (e.g. symbs).
6489: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 6490: }
6491:
1.407 www 6492: # -------------------------------------------------------------- keys interface
6493:
6494: sub getkeys {
6495: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 6496: if (!$udomain) { $udomain=$env{'user.domain'}; }
6497: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 6498: my $uhome=&homeserver($uname,$udomain);
6499: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
6500: my @keyarray=();
1.800 albertel 6501: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 6502: next if ($key =~ /^error: 2 /);
1.800 albertel 6503: push(@keyarray,&unescape($key));
1.407 www 6504: }
6505: return @keyarray;
1.318 matthew 6506: }
6507:
1.319 matthew 6508: # --------------------------------------------------------------- currentdump
6509: sub currentdump {
1.328 matthew 6510: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 6511: $courseid = $env{'request.course.id'} if (! defined($courseid));
6512: $sdom = $env{'user.domain'} if (! defined($sdom));
6513: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 6514: my $uhome = &homeserver($sname,$sdom);
1.1180 droeschl 6515: my $rep;
6516:
6517: if (grep { $_ eq $uhome } current_machine_ids()) {
6518: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
6519: $courseid)));
6520: } else {
6521: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
6522: }
6523:
1.318 matthew 6524: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 6525: #
1.318 matthew 6526: my %returnhash=();
1.319 matthew 6527: #
1.1343 raeburn 6528: if ($rep eq 'unknown_cmd') {
1.319 matthew 6529: # an old lond will not know currentdump
6530: # Do a dump and make it look like a currentdump
1.822 albertel 6531: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 6532: return if ($tmp[0] =~ /^(error:|no_such_host)/);
6533: my %hash = @tmp;
6534: @tmp=();
1.424 matthew 6535: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 6536: } else {
6537: my @pairs=split(/\&/,$rep);
1.800 albertel 6538: foreach my $pair (@pairs) {
6539: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 6540: my ($symb,$param) = split(/:/,$key);
6541: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 6542: &thaw_unescape($value);
1.319 matthew 6543: }
1.191 harris41 6544: }
1.12 www 6545: return %returnhash;
1.424 matthew 6546: }
6547:
6548: sub convert_dump_to_currentdump{
6549: my %hash = %{shift()};
6550: my %returnhash;
6551: # Code ripped from lond, essentially. The only difference
6552: # here is the unescaping done by lonnet::dump(). Conceivably
6553: # we might run in to problems with parameter names =~ /^v\./
6554: while (my ($key,$value) = each(%hash)) {
6555: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 6556: $symb = &unescape($symb);
6557: $param = &unescape($param);
1.424 matthew 6558: next if ($v eq 'version' || $symb eq 'keys');
6559: next if (exists($returnhash{$symb}) &&
6560: exists($returnhash{$symb}->{$param}) &&
6561: $returnhash{$symb}->{'v.'.$param} > $v);
6562: $returnhash{$symb}->{$param}=$value;
6563: $returnhash{$symb}->{'v.'.$param}=$v;
6564: }
6565: #
6566: # Remove all of the keys in the hashes which keep track of
6567: # the version of the parameter.
6568: while (my ($symb,$param_hash) = each(%returnhash)) {
6569: # use a foreach because we are going to delete from the hash.
6570: foreach my $key (keys(%$param_hash)) {
6571: delete($param_hash->{$key}) if ($key =~ /^v\./);
6572: }
6573: }
6574: return \%returnhash;
1.12 www 6575: }
6576:
1.627 albertel 6577: # ------------------------------------------------------ critical inc interface
6578:
6579: sub cinc {
6580: return &inc(@_,'critical');
6581: }
6582:
1.449 matthew 6583: # --------------------------------------------------------------- inc interface
6584:
6585: sub inc {
1.627 albertel 6586: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 6587: if (!$udomain) { $udomain=$env{'user.domain'}; }
6588: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 6589: my $uhome=&homeserver($uname,$udomain);
6590: my $items='';
6591: if (! ref($store)) {
6592: # got a single value, so use that instead
6593: $items = &escape($store).'=&';
6594: } elsif (ref($store) eq 'SCALAR') {
6595: $items = &escape($$store).'=&';
6596: } elsif (ref($store) eq 'ARRAY') {
6597: $items = join('=&',map {&escape($_);} @{$store});
6598: } elsif (ref($store) eq 'HASH') {
6599: while (my($key,$value) = each(%{$store})) {
6600: $items.= &escape($key).'='.&escape($value).'&';
6601: }
6602: }
6603: $items=~s/\&$//;
1.627 albertel 6604: if ($critical) {
6605: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
6606: } else {
6607: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
6608: }
1.449 matthew 6609: }
6610:
1.12 www 6611: # --------------------------------------------------------------- put interface
6612:
6613: sub put {
1.134 albertel 6614: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6615: if (!$udomain) { $udomain=$env{'user.domain'}; }
6616: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6617: my $uhome=&homeserver($uname,$udomain);
1.12 www 6618: my $items='';
1.800 albertel 6619: foreach my $item (keys(%$storehash)) {
6620: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6621: }
1.12 www 6622: $items=~s/\&$//;
1.134 albertel 6623: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 6624: }
6625:
1.631 albertel 6626: # ------------------------------------------------------------ newput interface
6627:
6628: sub newput {
6629: my ($namespace,$storehash,$udomain,$uname)=@_;
6630: if (!$udomain) { $udomain=$env{'user.domain'}; }
6631: if (!$uname) { $uname=$env{'user.name'}; }
6632: my $uhome=&homeserver($uname,$udomain);
6633: my $items='';
6634: foreach my $key (keys(%$storehash)) {
6635: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6636: }
6637: $items=~s/\&$//;
6638: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
6639: }
6640:
6641: # --------------------------------------------------------- putstore interface
6642:
1.524 raeburn 6643: sub putstore {
1.1269 raeburn 6644: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
1.620 albertel 6645: if (!$udomain) { $udomain=$env{'user.domain'}; }
6646: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 6647: my $uhome=&homeserver($uname,$udomain);
6648: my $items='';
1.715 albertel 6649: foreach my $key (keys(%$storehash)) {
6650: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 6651: }
1.715 albertel 6652: $items=~s/\&$//;
1.716 albertel 6653: my $esc_symb=&escape($symb);
6654: my $esc_v=&escape($version);
1.715 albertel 6655: my $reply =
1.716 albertel 6656: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 6657: $uhome);
1.1269 raeburn 6658: if (($tolog) && ($reply eq 'ok')) {
6659: my $namevalue='';
6660: foreach my $key (keys(%{$storehash})) {
6661: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
6662: }
6663: $namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
6664: '&host='.&escape($perlvar{'lonHostID'}).
6665: '&version='.$esc_v.
6666: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
6667: &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
6668: }
1.715 albertel 6669: if ($reply eq 'unknown_cmd') {
1.716 albertel 6670: # gfall back to way things use to be done
1.715 albertel 6671: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
6672: $uname);
1.524 raeburn 6673: }
1.715 albertel 6674: return $reply;
6675: }
6676:
6677: sub old_putstore {
1.716 albertel 6678: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
6679: if (!$udomain) { $udomain=$env{'user.domain'}; }
6680: if (!$uname) { $uname=$env{'user.name'}; }
6681: my $uhome=&homeserver($uname,$udomain);
6682: my %newstorehash;
1.800 albertel 6683: foreach my $item (keys(%$storehash)) {
6684: my $key = $version.':'.&escape($symb).':'.$item;
6685: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 6686: }
6687: my $items='';
6688: my %allitems = ();
1.800 albertel 6689: foreach my $item (keys(%newstorehash)) {
6690: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 6691: my $key = $1.':keys:'.$2;
6692: $allitems{$key} .= $3.':';
6693: }
1.800 albertel 6694: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 6695: }
1.800 albertel 6696: foreach my $item (keys(%allitems)) {
6697: $allitems{$item} =~ s/\:$//;
6698: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 6699: }
6700: $items=~s/\&$//;
6701: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 6702: }
6703:
1.47 www 6704: # ------------------------------------------------------ critical put interface
6705:
6706: sub cput {
1.134 albertel 6707: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6708: if (!$udomain) { $udomain=$env{'user.domain'}; }
6709: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6710: my $uhome=&homeserver($uname,$udomain);
1.47 www 6711: my $items='';
1.800 albertel 6712: foreach my $item (keys(%$storehash)) {
6713: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6714: }
1.47 www 6715: $items=~s/\&$//;
1.134 albertel 6716: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6717: }
6718:
6719: # -------------------------------------------------------------- eget interface
6720:
6721: sub eget {
1.133 albertel 6722: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6723: my $items='';
1.800 albertel 6724: foreach my $item (@$storearr) {
6725: $items.=&escape($item).'&';
1.191 harris41 6726: }
1.12 www 6727: $items=~s/\&$//;
1.620 albertel 6728: if (!$udomain) { $udomain=$env{'user.domain'}; }
6729: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6730: my $uhome=&homeserver($uname,$udomain);
6731: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6732: my @pairs=split(/\&/,$rep);
6733: my %returnhash=();
1.42 www 6734: my $i=0;
1.800 albertel 6735: foreach my $item (@$storearr) {
6736: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6737: $i++;
1.191 harris41 6738: }
1.12 www 6739: return %returnhash;
6740: }
6741:
1.667 albertel 6742: # ------------------------------------------------------------ tmpput interface
6743: sub tmpput {
1.802 raeburn 6744: my ($storehash,$server,$context)=@_;
1.667 albertel 6745: my $items='';
1.800 albertel 6746: foreach my $item (keys(%$storehash)) {
6747: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 6748: }
6749: $items=~s/\&$//;
1.802 raeburn 6750: if (defined($context)) {
6751: $items .= ':'.&escape($context);
6752: }
1.667 albertel 6753: return &reply("tmpput:$items",$server);
6754: }
6755:
6756: # ------------------------------------------------------------ tmpget interface
6757: sub tmpget {
1.688 albertel 6758: my ($token,$server)=@_;
6759: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
6760: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 6761: my %returnhash;
1.1328 raeburn 6762: if ($rep =~ /^(con_lost|error|no_such_host)/i) {
6763: return %returnhash;
6764: }
1.667 albertel 6765: foreach my $item (split(/\&/,$rep)) {
6766: my ($key,$value)=split(/=/,$item);
6767: $returnhash{&unescape($key)}=&thaw_unescape($value);
6768: }
6769: return %returnhash;
6770: }
6771:
1.1113 raeburn 6772: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 6773: sub tmpdel {
6774: my ($token,$server)=@_;
6775: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
6776: return &reply("tmpdel:$token",$server);
6777: }
6778:
1.1198 raeburn 6779: # ------------------------------------------------------------ get_timebased_id
6780:
6781: sub get_timebased_id {
6782: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
6783: $maxtries) = @_;
6784: my ($newid,$error,$dellock);
6785: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
6786: return ('','ok','invalid call to get suffix');
6787: }
6788:
6789: # set defaults for any optional args for which values were not supplied
6790: if ($who eq '') {
6791: $who = $env{'user.name'}.':'.$env{'user.domain'};
6792: }
6793: if (!$locktries) {
6794: $locktries = 3;
6795: }
6796: if (!$maxtries) {
6797: $maxtries = 10;
6798: }
6799:
6800: if (($cdom eq '') || ($cnum eq '')) {
6801: if ($env{'request.course.id'}) {
6802: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6803: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6804: }
6805: if (($cdom eq '') || ($cnum eq '')) {
6806: return ('','ok','call to get suffix not in course context');
6807: }
6808: }
6809:
6810: # construct locking item
6811: my $lockhash = {
6812: $prefix."\0".'locked_'.$keyid => $who,
6813: };
6814: my $tries = 0;
6815:
6816: # attempt to get lock on nohist_$namespace file
6817: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
6818: while (($gotlock ne 'ok') && $tries <$locktries) {
6819: $tries ++;
6820: sleep 1;
6821: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
6822: }
6823:
6824: # attempt to get unique identifier, based on current timestamp
6825: if ($gotlock eq 'ok') {
6826: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
6827: my $id = time;
6828: $newid = $id;
1.1268 raeburn 6829: if ($idtype eq 'addcode') {
6830: $newid .= &sixnum_code();
6831: }
1.1198 raeburn 6832: my $idtries = 0;
6833: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
6834: if ($idtype eq 'concat') {
6835: $newid = $id.$idtries;
1.1268 raeburn 6836: } elsif ($idtype eq 'addcode') {
6837: $newid = $newid.&sixnum_code();
1.1198 raeburn 6838: } else {
6839: $newid ++;
6840: }
6841: $idtries ++;
6842: }
6843: if (!exists($inuse{$prefix."\0".$newid})) {
6844: my %new_item = (
6845: $prefix."\0".$newid => $who,
6846: );
6847: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
6848: $cdom,$cnum);
6849: if ($putresult ne 'ok') {
6850: undef($newid);
6851: $error = 'error saving new item: '.$putresult;
6852: }
6853: } else {
1.1268 raeburn 6854: undef($newid);
1.1198 raeburn 6855: $error = ('error: no unique suffix available for the new item ');
6856: }
6857: # remove lock
6858: my @del_lock = ($prefix."\0".'locked_'.$keyid);
6859: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
6860: } else {
6861: $error = "error: could not obtain lockfile\n";
6862: $dellock = 'ok';
1.1276 raeburn 6863: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
6864: $dellock = 'nolock';
6865: }
1.1198 raeburn 6866: }
6867: return ($newid,$dellock,$error);
6868: }
6869:
1.1268 raeburn 6870: sub sixnum_code {
6871: my $code;
6872: for (0..6) {
6873: $code .= int( rand(9) );
6874: }
6875: return $code;
6876: }
6877:
1.765 albertel 6878: # -------------------------------------------------- portfolio access checking
6879:
6880: sub portfolio_access {
1.1270 raeburn 6881: my ($requrl,$clientip) = @_;
1.765 albertel 6882: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
1.1270 raeburn 6883: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
1.814 raeburn 6884: if ($result) {
6885: my %setters;
6886: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6887: my ($startblock,$endblock) =
6888: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
6889: if ($startblock && $endblock) {
6890: return 'B';
6891: }
6892: } else {
6893: my ($startblock,$endblock) =
6894: &Apache::loncommon::blockcheck(\%setters,'port');
6895: if ($startblock && $endblock) {
6896: return 'B';
6897: }
6898: }
6899: }
1.765 albertel 6900: if ($result eq 'ok') {
1.766 albertel 6901: return 'F';
1.765 albertel 6902: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 6903: return 'A';
1.765 albertel 6904: }
1.766 albertel 6905: return '';
1.765 albertel 6906: }
6907:
6908: sub get_portfolio_access {
1.1270 raeburn 6909: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;
1.767 albertel 6910:
6911: if (!ref($access_hash)) {
6912: my $current_perms = &get_portfile_permissions($udom,$unum);
6913: my %access_controls = &get_access_controls($current_perms,$group,
6914: $file_name);
6915: $access_hash = $access_controls{$file_name};
6916: }
6917:
1.1270 raeburn 6918: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
1.765 albertel 6919: my $now = time;
6920: if (ref($access_hash) eq 'HASH') {
6921: foreach my $key (keys(%{$access_hash})) {
6922: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6923: if ($start > $now) {
6924: next;
6925: }
6926: if ($end && $end<$now) {
6927: next;
6928: }
6929: if ($scope eq 'public') {
6930: $public = $key;
6931: last;
6932: } elsif ($scope eq 'guest') {
6933: $guest = $key;
6934: } elsif ($scope eq 'domains') {
6935: push(@domains,$key);
6936: } elsif ($scope eq 'users') {
6937: push(@users,$key);
6938: } elsif ($scope eq 'course') {
6939: push(@courses,$key);
6940: } elsif ($scope eq 'group') {
6941: push(@groups,$key);
1.1270 raeburn 6942: } elsif ($scope eq 'ip') {
6943: push(@ips,$key);
1.765 albertel 6944: }
6945: }
6946: if ($public) {
6947: return 'ok';
1.1270 raeburn 6948: } elsif (@ips > 0) {
6949: my $allowed;
6950: foreach my $ipkey (@ips) {
6951: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
6952: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
6953: $allowed = 1;
6954: last;
6955: }
6956: }
6957: }
6958: if ($allowed) {
6959: return 'ok';
6960: }
1.765 albertel 6961: }
6962: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6963: if ($guest) {
6964: return $guest;
6965: }
6966: } else {
6967: if (@domains > 0) {
6968: foreach my $domkey (@domains) {
6969: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
6970: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
6971: return 'ok';
6972: }
6973: }
6974: }
6975: }
6976: if (@users > 0) {
6977: foreach my $userkey (@users) {
1.865 raeburn 6978: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
6979: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
6980: if (ref($item) eq 'HASH') {
6981: if (($item->{'uname'} eq $env{'user.name'}) &&
6982: ($item->{'udom'} eq $env{'user.domain'})) {
6983: return 'ok';
6984: }
6985: }
6986: }
6987: }
1.765 albertel 6988: }
6989: }
6990: my %roleshash;
6991: my @courses_and_groups = @courses;
6992: push(@courses_and_groups,@groups);
6993: if (@courses_and_groups > 0) {
6994: my (%allgroups,%allroles);
6995: my ($start,$end,$role,$sec,$group);
6996: foreach my $envkey (%env) {
1.1060 raeburn 6997: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 6998: my $cid = $2.'_'.$3;
6999: if ($1 eq 'gr') {
7000: $group = $4;
7001: $allgroups{$cid}{$group} = $env{$envkey};
7002: } else {
7003: if ($4 eq '') {
7004: $sec = 'none';
7005: } else {
7006: $sec = $4;
7007: }
7008: $allroles{$cid}{$1}{$sec} = $env{$envkey};
7009: }
1.811 albertel 7010: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 7011: my $cid = $2.'_'.$3;
7012: if ($4 eq '') {
7013: $sec = 'none';
7014: } else {
7015: $sec = $4;
7016: }
7017: $allroles{$cid}{$1}{$sec} = $env{$envkey};
7018: }
7019: }
7020: if (keys(%allroles) == 0) {
7021: return;
7022: }
7023: foreach my $key (@courses_and_groups) {
7024: my %content = %{$$access_hash{$key}};
7025: my $cnum = $content{'number'};
7026: my $cdom = $content{'domain'};
7027: my $cid = $cdom.'_'.$cnum;
7028: if (!exists($allroles{$cid})) {
7029: next;
7030: }
7031: foreach my $role_id (keys(%{$content{'roles'}})) {
7032: my @sections = @{$content{'roles'}{$role_id}{'section'}};
7033: my @groups = @{$content{'roles'}{$role_id}{'group'}};
7034: my @status = @{$content{'roles'}{$role_id}{'access'}};
7035: my @roles = @{$content{'roles'}{$role_id}{'role'}};
7036: foreach my $role (keys(%{$allroles{$cid}})) {
7037: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
7038: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
7039: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
7040: if (grep/^all$/,@sections) {
7041: return 'ok';
7042: } else {
7043: if (grep/^$sec$/,@sections) {
7044: return 'ok';
7045: }
7046: }
7047: }
7048: }
7049: if (keys(%{$allgroups{$cid}}) == 0) {
7050: if (grep/^none$/,@groups) {
7051: return 'ok';
7052: }
7053: } else {
7054: if (grep/^all$/,@groups) {
7055: return 'ok';
7056: }
7057: foreach my $group (keys(%{$allgroups{$cid}})) {
7058: if (grep/^$group$/,@groups) {
7059: return 'ok';
7060: }
7061: }
7062: }
7063: }
7064: }
7065: }
7066: }
7067: }
7068: if ($guest) {
7069: return $guest;
7070: }
7071: }
7072: }
7073: return;
7074: }
7075:
7076: sub course_group_datechecker {
7077: my ($dates,$now,$status) = @_;
7078: my ($start,$end) = split(/\./,$dates);
7079: if (!$start && !$end) {
7080: return 'ok';
7081: }
7082: if (grep/^active$/,@{$status}) {
7083: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
7084: return 'ok';
7085: }
7086: }
7087: if (grep/^previous$/,@{$status}) {
7088: if ($end > $now ) {
7089: return 'ok';
7090: }
7091: }
7092: if (grep/^future$/,@{$status}) {
7093: if ($start > $now) {
7094: return 'ok';
7095: }
7096: }
7097: return;
7098: }
7099:
7100: sub parse_portfolio_url {
7101: my ($url) = @_;
7102:
7103: my ($type,$udom,$unum,$group,$file_name);
7104:
1.823 albertel 7105: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 7106: $type = 1;
7107: $udom = $1;
7108: $unum = $2;
7109: $file_name = $3;
1.823 albertel 7110: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 7111: $type = 2;
7112: $udom = $1;
7113: $unum = $2;
7114: $group = $3;
7115: $file_name = $3.'/'.$4;
7116: }
7117: if (wantarray) {
7118: return ($type,$udom,$unum,$file_name,$group);
7119: }
7120: return $type;
7121: }
7122:
7123: sub is_portfolio_url {
7124: my ($url) = @_;
7125: return scalar(&parse_portfolio_url($url));
7126: }
7127:
1.798 raeburn 7128: sub is_portfolio_file {
7129: my ($file) = @_;
1.820 raeburn 7130: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 7131: return 1;
7132: }
7133: return;
7134: }
7135:
1.976 raeburn 7136: sub usertools_access {
1.1084 raeburn 7137: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 7138: my ($access,%tools);
7139: if ($context eq '') {
7140: $context = 'tools';
7141: }
7142: if ($context eq 'requestcourses') {
7143: %tools = (
7144: official => 1,
7145: unofficial => 1,
1.1006 raeburn 7146: community => 1,
1.1246 raeburn 7147: textbook => 1,
1.1305 raeburn 7148: placement => 1,
1.985 raeburn 7149: );
1.1183 raeburn 7150: } elsif ($context eq 'requestauthor') {
7151: %tools = (
7152: requestauthor => 1,
7153: );
1.985 raeburn 7154: } else {
7155: %tools = (
7156: aboutme => 1,
7157: blog => 1,
1.1177 raeburn 7158: webdav => 1,
1.985 raeburn 7159: portfolio => 1,
7160: );
7161: }
1.976 raeburn 7162: return if (!defined($tools{$tool}));
7163:
1.1242 raeburn 7164: if (($udom eq '') || ($uname eq '')) {
1.976 raeburn 7165: $udom = $env{'user.domain'};
7166: $uname = $env{'user.name'};
7167: }
7168:
1.978 raeburn 7169: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
7170: if ($action ne 'reload') {
1.985 raeburn 7171: if ($context eq 'requestcourses') {
7172: return $env{'environment.canrequest.'.$tool};
1.1183 raeburn 7173: } elsif ($context eq 'requestauthor') {
7174: return $env{'environment.canrequest.author'};
1.985 raeburn 7175: } else {
7176: return $env{'environment.availabletools.'.$tool};
7177: }
7178: }
1.976 raeburn 7179: }
7180:
1.1183 raeburn 7181: my ($toolstatus,$inststatus,$envkey);
7182: if ($context eq 'requestauthor') {
7183: $envkey = $context;
7184: } else {
7185: $envkey = $context.'.'.$tool;
7186: }
1.976 raeburn 7187:
1.985 raeburn 7188: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
7189: ($action ne 'reload')) {
1.1183 raeburn 7190: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 7191: $inststatus = $env{'environment.inststatus'};
7192: } else {
1.1084 raeburn 7193: if (ref($userenvref) eq 'HASH') {
1.1183 raeburn 7194: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 7195: $inststatus = $userenvref->{'inststatus'};
7196: } else {
1.1183 raeburn 7197: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
7198: $toolstatus = $userenv{$envkey};
1.1084 raeburn 7199: $inststatus = $userenv{'inststatus'};
7200: }
1.976 raeburn 7201: }
7202:
7203: if ($toolstatus ne '') {
7204: if ($toolstatus) {
7205: $access = 1;
7206: } else {
7207: $access = 0;
7208: }
7209: return $access;
7210: }
7211:
1.1084 raeburn 7212: my ($is_adv,%domdef);
7213: if (ref($is_advref) eq 'HASH') {
7214: $is_adv = $is_advref->{'is_adv'};
7215: } else {
7216: $is_adv = &is_advanced_user($udom,$uname);
7217: }
7218: if (ref($domdefref) eq 'HASH') {
7219: %domdef = %{$domdefref};
7220: } else {
7221: %domdef = &get_domain_defaults($udom);
7222: }
1.976 raeburn 7223: if (ref($domdef{$tool}) eq 'HASH') {
7224: if ($is_adv) {
7225: if ($domdef{$tool}{'_LC_adv'} ne '') {
7226: if ($domdef{$tool}{'_LC_adv'}) {
7227: $access = 1;
7228: } else {
7229: $access = 0;
7230: }
7231: return $access;
7232: }
7233: }
7234: if ($inststatus ne '') {
7235: my ($hasaccess,$hasnoaccess);
7236: foreach my $affiliation (split(/:/,$inststatus)) {
7237: if ($domdef{$tool}{$affiliation} ne '') {
7238: if ($domdef{$tool}{$affiliation}) {
7239: $hasaccess = 1;
7240: } else {
7241: $hasnoaccess = 1;
7242: }
7243: }
7244: }
7245: if ($hasaccess || $hasnoaccess) {
7246: if ($hasaccess) {
7247: $access = 1;
7248: } elsif ($hasnoaccess) {
7249: $access = 0;
7250: }
7251: return $access;
7252: }
7253: } else {
7254: if ($domdef{$tool}{'default'} ne '') {
7255: if ($domdef{$tool}{'default'}) {
7256: $access = 1;
7257: } elsif ($domdef{$tool}{'default'} == 0) {
7258: $access = 0;
7259: }
7260: return $access;
7261: }
7262: }
7263: } else {
1.1177 raeburn 7264: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 7265: $access = 1;
7266: } else {
7267: $access = 0;
7268: }
1.976 raeburn 7269: return $access;
7270: }
7271: }
7272:
1.1050 raeburn 7273: sub is_course_owner {
7274: my ($cdom,$cnum,$udom,$uname) = @_;
7275: if (($udom eq '') || ($uname eq '')) {
7276: $udom = $env{'user.domain'};
7277: $uname = $env{'user.name'};
7278: }
7279: unless (($udom eq '') || ($uname eq '')) {
7280: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
7281: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
7282: return 1;
7283: } else {
7284: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
7285: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
7286: return 1;
7287: }
7288: }
7289: }
7290: }
7291: return;
7292: }
7293:
1.976 raeburn 7294: sub is_advanced_user {
7295: my ($udom,$uname) = @_;
1.1085 raeburn 7296: if ($udom ne '' && $uname ne '') {
7297: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 7298: if (wantarray) {
7299: return ($env{'user.adv'},$env{'user.author'});
7300: } else {
7301: return $env{'user.adv'};
7302: }
1.1085 raeburn 7303: }
7304: }
1.976 raeburn 7305: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
7306: my %allroles;
1.1128 raeburn 7307: my ($is_adv,$is_author);
1.976 raeburn 7308: foreach my $role (keys(%roleshash)) {
7309: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
7310: my $area = '/'.$tdomain.'/'.$trest;
7311: if ($sec ne '') {
7312: $area .= '/'.$sec;
7313: }
7314: if (($area ne '') && ($trole ne '')) {
7315: my $spec=$trole.'.'.$area;
7316: if ($trole =~ /^cr\//) {
7317: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
7318: } elsif ($trole ne 'gr') {
7319: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
7320: }
1.1128 raeburn 7321: if ($trole eq 'au') {
7322: $is_author = 1;
7323: }
1.976 raeburn 7324: }
7325: }
7326: foreach my $role (keys(%allroles)) {
7327: last if ($is_adv);
7328: foreach my $item (split(/:/,$allroles{$role})) {
7329: if ($item ne '') {
7330: my ($privilege,$restrictions)=split(/&/,$item);
7331: if ($privilege eq 'adv') {
7332: $is_adv = 1;
7333: last;
7334: }
7335: }
7336: }
7337: }
1.1128 raeburn 7338: if (wantarray) {
7339: return ($is_adv,$is_author);
7340: }
1.976 raeburn 7341: return $is_adv;
7342: }
1.798 raeburn 7343:
1.1035 raeburn 7344: sub check_can_request {
1.1036 raeburn 7345: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 7346: my $canreq = 0;
7347: my ($types,$typename) = &Apache::loncommon::course_types();
7348: my @options = ('approval','validate','autolimit');
7349: my $optregex = join('|',@options);
7350: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
7351: foreach my $type (@{$types}) {
7352: if (&usertools_access($env{'user.name'},
7353: $env{'user.domain'},
7354: $type,undef,'requestcourses')) {
7355: $canreq ++;
1.1036 raeburn 7356: if (ref($request_domains) eq 'HASH') {
7357: push(@{$request_domains->{$type}},$env{'user.domain'});
7358: }
1.1035 raeburn 7359: if ($dom eq $env{'user.domain'}) {
7360: $can_request->{$type} = 1;
7361: }
7362: }
7363: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
7364: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
7365: if (@curr > 0) {
1.1036 raeburn 7366: foreach my $item (@curr) {
7367: if (ref($request_domains) eq 'HASH') {
7368: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
7369: if ($otherdom ne '') {
7370: if (ref($request_domains->{$type}) eq 'ARRAY') {
7371: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
7372: push(@{$request_domains->{$type}},$otherdom);
7373: }
7374: } else {
7375: push(@{$request_domains->{$type}},$otherdom);
7376: }
7377: }
7378: }
7379: }
7380: unless($dom eq $env{'user.domain'}) {
7381: $canreq ++;
1.1035 raeburn 7382: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
7383: $can_request->{$type} = 1;
7384: }
7385: }
7386: }
7387: }
7388: }
7389: }
7390: return $canreq;
7391: }
7392:
1.341 www 7393: # ---------------------------------------------- Custom access rule evaluation
7394:
7395: sub customaccess {
7396: my ($priv,$uri)=@_;
1.807 albertel 7397: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 7398: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 7399: $udom = &LONCAPA::clean_domain($udom);
7400: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 7401: my $access=0;
1.800 albertel 7402: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 7403: my ($effect,$realm,$role,$type)=split(/\:/,$right);
7404: if ($type eq 'user') {
7405: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 7406: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 7407: if ($tdom) {
7408: if ($tdom ne $env{'user.domain'}) { next; }
7409: }
1.896 albertel 7410: if ($tuname) {
7411: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 7412: }
7413: $access=($effect eq 'allow');
7414: last;
7415: }
7416: } else {
7417: if ($role) {
7418: if ($role ne $urole) { next; }
7419: }
7420: foreach my $scope (split(/\s*\,\s*/,$realm)) {
7421: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
7422: if ($tdom) {
7423: if ($tdom ne $udom) { next; }
7424: }
7425: if ($tcrs) {
7426: if ($tcrs ne $ucrs) { next; }
7427: }
7428: if ($tsec) {
7429: if ($tsec ne $usec) { next; }
7430: }
7431: $access=($effect eq 'allow');
7432: last;
7433: }
7434: if ($realm eq '' && $role eq '') {
7435: $access=($effect eq 'allow');
7436: }
1.402 bowersj2 7437: }
1.341 www 7438: }
7439: return $access;
7440: }
7441:
1.103 harris41 7442: # ------------------------------------------------- Check for a user privilege
1.12 www 7443:
7444: sub allowed {
1.1281 raeburn 7445: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck)=@_;
1.705 albertel 7446: my $ver_orguri=$uri;
1.439 www 7447: $uri=&deversion($uri);
1.152 www 7448: my $orguri=$uri;
1.52 www 7449: $uri=&declutter($uri);
1.809 raeburn 7450:
1.810 raeburn 7451: if ($priv eq 'evb') {
7452: # Evade communication block restrictions for specified role in a course
7453: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
7454: return $1;
7455: } else {
7456: return;
7457: }
7458: }
7459:
1.620 albertel 7460: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 7461: # Free bre access to adm and meta resources
1.1343 raeburn 7462: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard|ext\.tool)$}))
1.769 albertel 7463: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
7464: && ($priv eq 'bre')) {
1.14 www 7465: return 'F';
1.159 www 7466: }
7467:
1.545 banghart 7468: # Free bre access to user's own portfolio contents
1.714 raeburn 7469: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 7470: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 7471: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 7472: my %setters;
7473: my ($startblock,$endblock) =
7474: &Apache::loncommon::blockcheck(\%setters,'port');
7475: if ($startblock && $endblock) {
7476: return 'B';
7477: } else {
7478: return 'F';
7479: }
1.545 banghart 7480: }
7481:
1.762 raeburn 7482: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 7483: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
7484: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
7485: if (exists($env{'request.course.id'})) {
7486: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7487: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7488: if (($domain eq $cdom) && ($name eq $cnum)) {
7489: my $courseprivid=$env{'request.course.id'};
7490: $courseprivid=~s/\_/\//;
7491: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
7492: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
7493: return $1;
1.762 raeburn 7494: } else {
7495: if ($env{'request.course.sec'}) {
7496: $courseprivid.='/'.$env{'request.course.sec'};
7497: }
7498: if ($env{'user.priv.'.$env{'request.role'}.'./'.
7499: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
7500: return $2;
7501: }
1.714 raeburn 7502: }
7503: }
7504: }
7505: }
7506:
1.159 www 7507: # Free bre to public access
7508:
7509: if ($priv eq 'bre') {
1.1362 raeburn 7510: my $copyright;
7511: unless ($uri =~ /ext\.tool/) {
7512: $copyright=&metadata($uri,'copyright');
7513: }
1.620 albertel 7514: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 7515: return 'F';
7516: }
1.238 www 7517: if ($copyright eq 'priv') {
7518: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7519: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 7520: return '';
7521: }
7522: }
7523: if ($copyright eq 'domain') {
7524: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7525: unless (($env{'user.domain'} eq $1) ||
7526: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 7527: return '';
7528: }
1.262 matthew 7529: }
1.620 albertel 7530: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 7531: # Library role, so allow browsing of resources in this domain.
7532: return 'F';
1.238 www 7533: }
1.341 www 7534: if ($copyright eq 'custom') {
7535: unless (&customaccess($priv,$uri)) { return ''; }
7536: }
1.14 www 7537: }
1.264 matthew 7538: # Domain coordinator is trying to create a course
1.620 albertel 7539: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 7540: # uri is the requested domain in this case.
7541: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 7542: # a role of dc for the domain in question.
1.620 albertel 7543: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 7544: }
1.29 www 7545:
1.52 www 7546: my $thisallowed='';
7547: my $statecond=0;
7548: my $courseprivid='';
7549:
1.1039 raeburn 7550: my $ownaccess;
1.1043 raeburn 7551: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 7552: if (($priv eq 'bro') && ($env{'user.author'})) {
7553: if ($uri eq '') {
7554: $ownaccess = 1;
7555: } else {
7556: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
7557: my $udom = $env{'user.domain'};
7558: my $uname = $env{'user.name'};
7559: if ($uri =~ m{^\Q$udom\E/?$}) {
7560: $ownaccess = 1;
1.1040 raeburn 7561: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 7562: unless ($uri =~ m{\.\./}) {
7563: $ownaccess = 1;
7564: }
7565: } elsif (($udom ne 'public') && ($uname ne 'public')) {
7566: my $now = time;
7567: if ($uri =~ m{^([^/]+)/?$}) {
7568: my $adom = $1;
7569: foreach my $key (keys(%env)) {
1.1042 raeburn 7570: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 7571: my ($start,$end) = split('.',$env{$key});
7572: if (($now >= $start) && (!$end || $end < $now)) {
7573: $ownaccess = 1;
7574: last;
7575: }
7576: }
7577: }
7578: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
7579: my $adom = $1;
7580: my $aname = $2;
1.1042 raeburn 7581: foreach my $role ('ca','aa') {
7582: if ($env{"user.role.$role./$adom/$aname"}) {
7583: my ($start,$end) =
7584: split('.',$env{"user.role.$role./$adom/$aname"});
7585: if (($now >= $start) && (!$end || $end < $now)) {
7586: $ownaccess = 1;
7587: last;
7588: }
1.1039 raeburn 7589: }
7590: }
7591: }
7592: }
7593: }
7594: }
7595: }
7596:
1.52 www 7597: # Course
7598:
1.620 albertel 7599: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7600: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7601: $thisallowed.=$1;
7602: }
1.52 www 7603: }
1.29 www 7604:
1.52 www 7605: # Domain
7606:
1.620 albertel 7607: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 7608: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7609: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7610: $thisallowed.=$1;
7611: }
1.12 www 7612: }
1.52 www 7613:
1.1141 raeburn 7614: # User who is not author or co-author might still be able to edit
7615: # resource of an author in the domain (e.g., if Domain Coordinator).
7616: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
7617: (&allowed('mdc',$env{'request.course.id'}))) {
7618: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
7619: $thisallowed.=$1;
7620: }
7621: }
7622:
1.52 www 7623: # Course: uri itself is a course
1.66 www 7624: my $courseuri=$uri;
7625: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 7626: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 7627:
1.620 albertel 7628: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 7629: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7630: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7631: $thisallowed.=$1;
7632: }
1.12 www 7633: }
1.29 www 7634:
1.665 albertel 7635: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 7636: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 7637: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 7638: $thisallowed='';
1.671 raeburn 7639: my ($match)=&is_on_map($uri);
7640: if ($match) {
7641: if ($env{'user.priv.'.$env{'request.role'}.'./'}
7642: =~/\Q$priv\E\&([^\:]*)/) {
1.1281 raeburn 7643: my $value = $1;
7644: if ($noblockcheck) {
7645: $thisallowed.=$value;
1.1162 raeburn 7646: } else {
1.1281 raeburn 7647: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7648: if (@blockers > 0) {
7649: $thisallowed = 'B';
7650: } else {
7651: $thisallowed.=$value;
7652: }
1.1162 raeburn 7653: }
1.671 raeburn 7654: }
7655: } else {
1.705 albertel 7656: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 7657: if ($refuri) {
7658: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 7659: $thisallowed='F';
1.671 raeburn 7660: } else {
7661: $refuri=&declutter($refuri);
7662: my ($match) = &is_on_map($refuri);
7663: if ($match) {
1.1281 raeburn 7664: if ($noblockcheck) {
7665: $thisallowed='F';
1.1162 raeburn 7666: } else {
1.1281 raeburn 7667: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
7668: if (@blockers > 0) {
7669: $thisallowed = 'B';
7670: } else {
7671: $thisallowed='F';
7672: }
1.1162 raeburn 7673: }
1.671 raeburn 7674: }
1.669 raeburn 7675: }
1.671 raeburn 7676: }
7677: }
1.314 www 7678: }
1.492 albertel 7679:
1.766 albertel 7680: if ($priv eq 'bre'
7681: && $thisallowed ne 'F'
7682: && $thisallowed ne '2'
7683: && &is_portfolio_url($uri)) {
1.1270 raeburn 7684: $thisallowed = &portfolio_access($uri,$clientip);
1.766 albertel 7685: }
1.1250 raeburn 7686:
1.52 www 7687: # Full access at system, domain or course-wide level? Exit.
1.29 www 7688: if ($thisallowed=~/F/) {
7689: return 'F';
7690: }
7691:
1.52 www 7692: # If this is generating or modifying users, exit with special codes
1.29 www 7693:
1.643 www 7694: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
7695: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 7696: my ($audom,$auname)=split('/',$uri);
1.643 www 7697: # no author name given, so this just checks on the general right to make a co-author in this domain
7698: unless ($auname) { return $thisallowed; }
7699: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 7700: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
7701: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
7702: ($audom ne $env{'request.role.domain'}))) { return ''; }
7703: }
1.52 www 7704: return $thisallowed;
7705: }
7706: #
1.103 harris41 7707: # Gathered so far: system, domain and course wide privileges
1.52 www 7708: #
7709: # Course: See if uri or referer is an individual resource that is part of
7710: # the course
7711:
1.620 albertel 7712: if ($env{'request.course.id'}) {
1.232 www 7713:
1.620 albertel 7714: $courseprivid=$env{'request.course.id'};
7715: if ($env{'request.course.sec'}) {
7716: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 7717: }
7718: $courseprivid=~s/\_/\//;
7719: my $checkreferer=1;
1.232 www 7720: my ($match,$cond)=&is_on_map($uri);
7721: if ($match) {
7722: $statecond=$cond;
1.620 albertel 7723: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 7724: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 7725: my $value = $1;
7726: if ($priv eq 'bre') {
1.1281 raeburn 7727: if ($noblockcheck) {
7728: $thisallowed.=$value;
1.1162 raeburn 7729: } else {
1.1281 raeburn 7730: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7731: if (@blockers > 0) {
7732: $thisallowed = 'B';
7733: } else {
7734: $thisallowed.=$value;
7735: }
1.1162 raeburn 7736: }
7737: } else {
7738: $thisallowed.=$value;
7739: }
1.52 www 7740: $checkreferer=0;
7741: }
1.29 www 7742: }
1.83 www 7743:
1.148 www 7744: if ($checkreferer) {
1.620 albertel 7745: my $refuri=$env{'httpref.'.$orguri};
1.148 www 7746: unless ($refuri) {
1.800 albertel 7747: foreach my $key (keys(%env)) {
7748: if ($key=~/^httpref\..*\*/) {
7749: my $pattern=$key;
1.156 www 7750: $pattern=~s/^httpref\.\/res\///;
1.148 www 7751: $pattern=~s/\*/\[\^\/\]\+/g;
7752: $pattern=~s/\//\\\//g;
1.152 www 7753: if ($orguri=~/$pattern/) {
1.800 albertel 7754: $refuri=$env{$key};
1.148 www 7755: }
7756: }
1.191 harris41 7757: }
1.148 www 7758: }
1.232 www 7759:
1.148 www 7760: if ($refuri) {
1.152 www 7761: $refuri=&declutter($refuri);
1.232 www 7762: my ($match,$cond)=&is_on_map($refuri);
7763: if ($match) {
7764: my $refstatecond=$cond;
1.620 albertel 7765: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 7766: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 7767: my $value = $1;
7768: if ($priv eq 'bre') {
1.1281 raeburn 7769: if ($noblockcheck) {
7770: $thisallowed.=$value;
1.1162 raeburn 7771: } else {
1.1281 raeburn 7772: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
7773: if (@blockers > 0) {
7774: $thisallowed = 'B';
7775: } else {
7776: $thisallowed.=$value;
7777: }
1.1162 raeburn 7778: }
7779: } else {
7780: $thisallowed.=$value;
7781: }
1.53 www 7782: $uri=$refuri;
7783: $statecond=$refstatecond;
1.52 www 7784: }
7785: }
1.148 www 7786: }
1.29 www 7787: }
1.52 www 7788: }
1.29 www 7789:
1.52 www 7790: #
1.103 harris41 7791: # Gathered now: all privileges that could apply, and condition number
1.52 www 7792: #
7793: #
7794: # Full or no access?
7795: #
1.29 www 7796:
1.52 www 7797: if ($thisallowed=~/F/) {
7798: return 'F';
7799: }
1.29 www 7800:
1.52 www 7801: unless ($thisallowed) {
7802: return '';
7803: }
1.29 www 7804:
1.52 www 7805: # Restrictions exist, deal with them
7806: #
7807: # C:according to course preferences
7808: # R:according to resource settings
7809: # L:unless locked
7810: # X:according to user session state
7811: #
7812:
7813: # Possibly locked functionality, check all courses
1.54 www 7814: # Locks might take effect only after 10 minutes cache expiration for other
7815: # courses, and 2 minutes for current course
1.52 www 7816:
7817: my $envkey;
7818: if ($thisallowed=~/L/) {
1.1000 raeburn 7819: foreach $envkey (keys(%env)) {
1.54 www 7820: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
7821: my $courseid=$2;
7822: my $roleid=$1.'.'.$2;
1.92 www 7823: $courseid=~s/^\///;
1.54 www 7824: my $expiretime=600;
1.620 albertel 7825: if ($env{'request.role'} eq $roleid) {
1.54 www 7826: $expiretime=120;
7827: }
7828: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
7829: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 7830: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 7831: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 7832: }
1.620 albertel 7833: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
7834: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
7835: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
7836: &log($env{'user.domain'},$env{'user.name'},
7837: $env{'user.home'},
1.57 www 7838: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 7839: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 7840: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7841: return '';
7842: }
7843: }
1.620 albertel 7844: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
7845: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
7846: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
7847: &log($env{'user.domain'},$env{'user.name'},
7848: $env{'user.home'},
1.57 www 7849: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 7850: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 7851: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7852: return '';
7853: }
7854: }
7855: }
1.29 www 7856: }
1.52 www 7857: }
7858:
7859: #
7860: # Rest of the restrictions depend on selected course
7861: #
7862:
1.620 albertel 7863: unless ($env{'request.course.id'}) {
1.766 albertel 7864: if ($thisallowed eq 'A') {
7865: return 'A';
1.814 raeburn 7866: } elsif ($thisallowed eq 'B') {
7867: return 'B';
1.766 albertel 7868: } else {
7869: return '1';
7870: }
1.52 www 7871: }
1.29 www 7872:
1.52 www 7873: #
7874: # Now user is definitely in a course
7875: #
1.53 www 7876:
7877:
7878: # Course preferences
7879:
7880: if ($thisallowed=~/C/) {
1.620 albertel 7881: my $rolecode=(split(/\./,$env{'request.role'}))[0];
7882: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
7883: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 7884: =~/\Q$rolecode\E/) {
1.1304 raeburn 7885: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
1.689 albertel 7886: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7887: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
7888: $env{'request.course.id'});
7889: }
1.237 www 7890: return '';
7891: }
7892:
1.620 albertel 7893: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 7894: =~/\Q$unamedom\E/) {
1.1304 raeburn 7895: if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
1.689 albertel 7896: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
7897: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
7898: $env{'request.course.id'});
7899: }
1.54 www 7900: return '';
7901: }
1.53 www 7902: }
7903:
7904: # Resource preferences
7905:
7906: if ($thisallowed=~/R/) {
1.620 albertel 7907: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 7908: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 7909: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7910: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7911: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
7912: }
7913: return '';
1.54 www 7914: }
1.53 www 7915: }
1.30 www 7916:
1.246 www 7917: # Restricted by state or randomout?
1.30 www 7918:
1.52 www 7919: if ($thisallowed=~/X/) {
1.620 albertel 7920: if ($env{'acc.randomout'}) {
1.579 albertel 7921: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 7922: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 7923: return '';
7924: }
1.247 www 7925: }
7926: if (&condval($statecond)) {
1.52 www 7927: return '2';
7928: } else {
7929: return '';
7930: }
7931: }
1.30 www 7932:
1.766 albertel 7933: if ($thisallowed eq 'A') {
7934: return 'A';
1.814 raeburn 7935: } elsif ($thisallowed eq 'B') {
7936: return 'B';
1.766 albertel 7937: }
1.52 www 7938: return 'F';
1.232 www 7939: }
1.1162 raeburn 7940:
1.1192 raeburn 7941: # ------------------------------------------- Check construction space access
7942:
7943: sub constructaccess {
7944: my ($url,$setpriv)=@_;
7945:
7946: # We do not allow editing of previous versions of files
7947: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
7948:
7949: # Get username and domain from URL
7950: my ($ownername,$ownerdomain,$ownerhome);
7951:
7952: ($ownerdomain,$ownername) =
1.1325 raeburn 7953: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)(?:/daxepage|/daxeopen)?/priv/($match_domain)/($match_username)(?:/|$)});
1.1192 raeburn 7954:
7955: # The URL does not really point to any authorspace, forget it
7956: unless (($ownername) && ($ownerdomain)) { return ''; }
7957:
7958: # Now we need to see if the user has access to the authorspace of
7959: # $ownername at $ownerdomain
7960:
7961: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
7962: # Real author for this?
7963: $ownerhome = $env{'user.home'};
7964: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
7965: return ($ownername,$ownerdomain,$ownerhome);
7966: }
7967: } else {
7968: # Co-author for this?
7969: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
7970: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
7971: $ownerhome = &homeserver($ownername,$ownerdomain);
7972: return ($ownername,$ownerdomain,$ownerhome);
7973: }
1.1312 raeburn 7974: if ($env{'request.course.id'}) {
7975: if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
7976: ($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
7977: if (&allowed('mdc',$env{'request.course.id'})) {
7978: $ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
7979: return ($ownername,$ownerdomain,$ownerhome);
7980: }
7981: }
7982: }
1.1192 raeburn 7983: }
7984:
7985: # We don't have any access right now. If we are not possibly going to do anything about this,
7986: # we might as well leave
7987: unless ($setpriv) { return ''; }
7988:
7989: # Backdoor access?
7990: my $allowed=&allowed('eco',$ownerdomain);
7991: # Nope
7992: unless ($allowed) { return ''; }
7993: # Looks like we may have access, but could be locked by the owner of the construction space
7994: if ($allowed eq 'U') {
7995: my %blocked=&get('environment',['domcoord.author'],
7996: $ownerdomain,$ownername);
7997: # Is blocked by owner
7998: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
7999: }
8000: if (($allowed eq 'F') || ($allowed eq 'U')) {
8001: # Grant temporary access
8002: my $then=$env{'user.login.time'};
1.1209 raeburn 8003: my $update=$env{'user.update.time'};
1.1192 raeburn 8004: if (!$update) { $update = $then; }
8005: my $refresh=$env{'user.refresh.time'};
8006: if (!$refresh) { $refresh = $update; }
8007: my $now = time;
8008: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
8009: $now,'ca','constructaccess');
8010: $ownerhome = &homeserver($ownername,$ownerdomain);
8011: return($ownername,$ownerdomain,$ownerhome);
8012: }
8013: # No business here
8014: return '';
8015: }
8016:
1.1282 raeburn 8017: # ----------------------------------------------------------- Content Blocking
8018:
8019: {
8020: # Caches for faster Course Contents display where content blocking
8021: # is in operation (i.e., interval param set) for timed quiz.
8022: #
8023: # User for whom data are being temporarily cached.
8024: my $cacheduser='';
8025: # Cached blockers for this user (a hash of blocking items).
8026: my %cachedblockers=();
8027: # When the data were last cached.
8028: my $cachedlast='';
8029:
8030: sub load_all_blockers {
8031: my ($uname,$udom,$blocks)=@_;
8032: if (($uname ne '') && ($udom ne '')) {
8033: if (($cacheduser eq $uname.':'.$udom) &&
8034: (abs($cachedlast-time)<5)) {
8035: return;
8036: }
8037: }
8038: $cachedlast=time;
8039: $cacheduser=$uname.':'.$udom;
8040: %cachedblockers = &get_commblock_resources($blocks);
8041: }
8042:
1.1162 raeburn 8043: sub get_comm_blocks {
8044: my ($cdom,$cnum) = @_;
8045: if ($cdom eq '' || $cnum eq '') {
8046: return unless ($env{'request.course.id'});
8047: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
8048: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
8049: }
8050: my %commblocks;
8051: my $hashid=$cdom.'_'.$cnum;
8052: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
8053: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
8054: %commblocks = %{$blocksref};
8055: } else {
8056: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
8057: my $cachetime = 600;
8058: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
8059: }
8060: return %commblocks;
8061: }
8062:
1.1282 raeburn 8063: sub get_commblock_resources {
8064: my ($blocks) = @_;
8065: my %blockers = ();
8066: return %blockers unless ($env{'request.course.id'});
8067: return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
1.1162 raeburn 8068: my %commblocks;
8069: if (ref($blocks) eq 'HASH') {
8070: %commblocks = %{$blocks};
8071: } else {
8072: %commblocks = &get_comm_blocks();
8073: }
1.1282 raeburn 8074: return %blockers unless (keys(%commblocks) > 0);
8075: my $navmap = Apache::lonnavmaps::navmap->new();
8076: return %blockers unless (ref($navmap));
1.1162 raeburn 8077: my $now = time;
8078: foreach my $block (keys(%commblocks)) {
8079: if ($block =~ /^(\d+)____(\d+)$/) {
8080: my ($start,$end) = ($1,$2);
8081: if ($start <= $now && $end >= $now) {
8082: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
8083: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
8084: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
1.1282 raeburn 8085: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
8086: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
1.1162 raeburn 8087: }
8088: }
8089: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
1.1282 raeburn 8090: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
8091: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1162 raeburn 8092: }
8093: }
8094: }
8095: }
8096: }
8097: } elsif ($block =~ /^firstaccess____(.+)$/) {
8098: my $item = $1;
1.1163 raeburn 8099: my @to_test;
1.1162 raeburn 8100: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
8101: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
1.1282 raeburn 8102: my @interval;
8103: my $type = 'map';
8104: if ($item eq 'course') {
8105: $type = 'course';
8106: @interval=&EXT("resource.0.interval");
8107: } else {
8108: if ($item =~ /___\d+___/) {
8109: $type = 'resource';
8110: @interval=&EXT("resource.0.interval",$item);
8111: if (ref($navmap)) {
8112: my $res = $navmap->getBySymb($item);
8113: push(@to_test,$res);
8114: }
1.1162 raeburn 8115: } else {
1.1282 raeburn 8116: my $mapsymb = &symbread($item,1);
8117: if ($mapsymb) {
8118: if (ref($navmap)) {
8119: my $mapres = $navmap->getBySymb($mapsymb);
8120: @to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1);
8121: foreach my $res (@to_test) {
8122: my $symb = $res->symb();
8123: next if ($symb eq $mapsymb);
8124: if ($symb ne '') {
8125: @interval=&EXT("resource.0.interval",$symb);
8126: if ($interval[1] eq 'map') {
8127: last;
1.1162 raeburn 8128: }
8129: }
8130: }
8131: }
8132: }
8133: }
1.1282 raeburn 8134: }
1.1310 raeburn 8135: if ($interval[0] =~ /^(\d+)/) {
1.1308 raeburn 8136: my $timelimit = $1;
1.1282 raeburn 8137: my $first_access;
8138: if ($type eq 'resource') {
8139: $first_access=&get_first_access($interval[1],$item);
8140: } elsif ($type eq 'map') {
8141: $first_access=&get_first_access($interval[1],undef,$item);
8142: } else {
8143: $first_access=&get_first_access($interval[1]);
8144: }
8145: if ($first_access) {
1.1292 raeburn 8146: my $timesup = $first_access+$timelimit;
1.1282 raeburn 8147: if ($timesup > $now) {
8148: my $activeblock;
8149: foreach my $res (@to_test) {
1.1283 raeburn 8150: if ($res->answerable()) {
1.1282 raeburn 8151: $activeblock = 1;
8152: last;
8153: }
8154: }
8155: if ($activeblock) {
8156: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
8157: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
8158: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
8159: }
8160: }
8161: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
8162: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
8163: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1163 raeburn 8164: }
1.1162 raeburn 8165: }
8166: }
8167: }
8168: }
8169: }
8170: }
8171: }
8172: }
8173: }
1.1282 raeburn 8174: return %blockers;
1.1162 raeburn 8175: }
8176:
1.1282 raeburn 8177: sub has_comm_blocking {
8178: my ($priv,$symb,$uri,$blocks) = @_;
8179: my @blockers;
8180: return unless ($env{'request.course.id'});
8181: return unless ($priv eq 'bre');
8182: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
8183: return if ($env{'request.state'} eq 'construct');
8184: &load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks);
8185: return unless (keys(%cachedblockers) > 0);
8186: my (%possibles,@symbs);
8187: if (!$symb) {
8188: $symb = &symbread($uri,1,1,1,\%possibles);
1.1162 raeburn 8189: }
1.1282 raeburn 8190: if ($symb) {
8191: @symbs = ($symb);
8192: } elsif (keys(%possibles)) {
8193: @symbs = keys(%possibles);
8194: }
8195: my $noblock;
8196: foreach my $symb (@symbs) {
8197: last if ($noblock);
8198: my ($map,$resid,$resurl)=&decode_symb($symb);
8199: foreach my $block (keys(%cachedblockers)) {
8200: if ($block =~ /^firstaccess____(.+)$/) {
8201: my $item = $1;
8202: if (($item eq $map) || ($item eq $symb)) {
8203: $noblock = 1;
8204: last;
8205: }
8206: }
8207: if (ref($cachedblockers{$block}) eq 'HASH') {
8208: if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') {
8209: if ($cachedblockers{$block}{'resources'}{$symb}) {
8210: unless (grep(/^\Q$block\E$/,@blockers)) {
8211: push(@blockers,$block);
8212: }
8213: }
8214: }
1.1162 raeburn 8215: }
1.1282 raeburn 8216: if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') {
8217: if ($cachedblockers{$block}{'maps'}{$map}) {
8218: unless (grep(/^\Q$block\E$/,@blockers)) {
8219: push(@blockers,$block);
8220: }
8221: }
1.1162 raeburn 8222: }
8223: }
8224: }
1.1282 raeburn 8225: return if ($noblock);
8226: return @blockers;
8227: }
1.1162 raeburn 8228: }
8229:
1.1282 raeburn 8230: # -------------------------------- Deversion and split uri into path an filename
8231:
1.1133 foxr 8232: #
1.1282 raeburn 8233: # Removes the version from a URI and
1.1133 foxr 8234: # splits it in to its filename and path to the filename.
8235: # Seems like File::Basename could have done this more clearly.
8236: # Parameters:
8237: # $uri - input URI
8238: # Returns:
8239: # Two element list consisting of
8240: # $pathname - the URI up to and excluding the trailing /
8241: # $filename - The part of the URI following the last /
8242: # NOTE:
8243: # Another realization of this is simply:
8244: # use File::Basename;
8245: # ...
8246: # $uri = shift;
8247: # $filename = basename($uri);
8248: # $path = dirname($uri);
8249: # return ($filename, $path);
8250: #
8251: # The implementation below is probably faster however.
8252: #
1.710 albertel 8253: sub split_uri_for_cond {
8254: my $uri=&deversion(&declutter(shift));
8255: my @uriparts=split(/\//,$uri);
8256: my $filename=pop(@uriparts);
8257: my $pathname=join('/',@uriparts);
8258: return ($pathname,$filename);
8259: }
1.232 www 8260: # --------------------------------------------------- Is a resource on the map?
8261:
8262: sub is_on_map {
1.710 albertel 8263: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 8264: #Trying to find the conditional for the file
1.620 albertel 8265: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 8266: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 8267: if ($match) {
1.289 bowersj2 8268: return (1,$1);
8269: } else {
1.434 www 8270: return (0,0);
1.289 bowersj2 8271: }
1.12 www 8272: }
8273:
1.427 www 8274: # --------------------------------------------------------- Get symb from alias
8275:
8276: sub get_symb_from_alias {
8277: my $symb=shift;
8278: my ($map,$resid,$url)=&decode_symb($symb);
8279: # Already is a symb
8280: if ($url) { return $symb; }
8281: # Must be an alias
8282: my $aliassymb='';
8283: my %bighash;
1.620 albertel 8284: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 8285: &GDBM_READER(),0640)) {
8286: my $rid=$bighash{'mapalias_'.$symb};
8287: if ($rid) {
8288: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 8289: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
8290: $resid,$bighash{'src_'.$rid});
1.427 www 8291: }
8292: untie %bighash;
8293: }
8294: return $aliassymb;
8295: }
8296:
1.12 www 8297: # ----------------------------------------------------------------- Define Role
8298:
8299: sub definerole {
8300: if (allowed('mcr','/')) {
1.1326 raeburn 8301: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;
1.800 albertel 8302: foreach my $role (split(':',$sysrole)) {
8303: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8304: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
8305: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
8306: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8307: return "refused:s:$crole&$cqual";
8308: }
8309: }
1.191 harris41 8310: }
1.800 albertel 8311: foreach my $role (split(':',$domrole)) {
8312: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8313: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
8314: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
8315: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 8316: return "refused:d:$crole&$cqual";
8317: }
8318: }
1.191 harris41 8319: }
1.800 albertel 8320: foreach my $role (split(':',$courole)) {
8321: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8322: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
8323: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
8324: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8325: return "refused:c:$crole&$cqual";
8326: }
8327: }
1.191 harris41 8328: }
1.1326 raeburn 8329: my $uhome;
8330: if (($uname ne '') && ($udom ne '')) {
8331: $uhome = &homeserver($uname,$udom);
8332: return $uhome if ($uhome eq 'no_host');
8333: } else {
8334: $uname = $env{'user.name'};
8335: $udom = $env{'user.domain'};
8336: $uhome = $env{'user.home'};
8337: }
1.620 albertel 8338: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.1326 raeburn 8339: "$udom:$uname:rolesdef_$rolename=".
1.21 www 8340: escape($sysrole.'_'.$domrole.'_'.$courole);
1.1326 raeburn 8341: return reply($command,$uhome);
1.12 www 8342: } else {
8343: return 'refused';
8344: }
1.105 harris41 8345: }
8346:
8347: # ---------------- Make a metadata query against the network of library servers
8348:
8349: sub metadata_query {
1.1237 raeburn 8350: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
1.120 harris41 8351: my %rhash;
1.845 albertel 8352: my %libserv = &all_library();
1.244 matthew 8353: my @server_list = (defined($server_array) ? @$server_array
8354: : keys(%libserv) );
8355: for my $server (@server_list) {
1.1237 raeburn 8356: my $domains = '';
8357: if (ref($domains_hash) eq 'HASH') {
8358: $domains = $domains_hash->{$server};
8359: }
1.118 harris41 8360: unless ($custom or $customshow) {
1.1237 raeburn 8361: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
1.118 harris41 8362: $rhash{$server}=$reply;
8363: }
8364: else {
8365: my $reply=&reply("querysend:".&escape($query).':'.
1.1237 raeburn 8366: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
1.118 harris41 8367: $server);
8368: $rhash{$server}=$reply;
8369: }
1.112 harris41 8370: }
1.118 harris41 8371: return \%rhash;
1.240 www 8372: }
8373:
8374: # ----------------------------------------- Send log queries and wait for reply
8375:
8376: sub log_query {
8377: my ($uname,$udom,$query,%filters)=@_;
8378: my $uhome=&homeserver($uname,$udom);
8379: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 8380: my $uhost=&hostname($uhome);
1.800 albertel 8381: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 8382: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
8383: $uhome);
1.479 albertel 8384: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 8385: return get_query_reply($queryid);
8386: }
8387:
1.818 raeburn 8388: # -------------------------- Update MySQL table for portfolio file
8389:
8390: sub update_portfolio_table {
1.821 raeburn 8391: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 8392: if ($group ne '') {
8393: $file_name =~s /^\Q$group\E//;
8394: }
1.818 raeburn 8395: my $homeserver = &homeserver($uname,$udom);
8396: my $queryid=
1.821 raeburn 8397: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
8398: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 8399: my $reply = &get_query_reply($queryid);
8400: return $reply;
8401: }
8402:
1.899 raeburn 8403: # -------------------------- Update MySQL allusers table
8404:
8405: sub update_allusers_table {
8406: my ($uname,$udom,$names) = @_;
8407: my $homeserver = &homeserver($uname,$udom);
8408: my $queryid=
8409: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
8410: 'lastname='.&escape($names->{'lastname'}).'%%'.
8411: 'firstname='.&escape($names->{'firstname'}).'%%'.
8412: 'middlename='.&escape($names->{'middlename'}).'%%'.
8413: 'generation='.&escape($names->{'generation'}).'%%'.
8414: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
8415: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 8416: return;
1.899 raeburn 8417: }
8418:
1.508 raeburn 8419: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 8420:
8421: sub fetch_enrollment_query {
1.511 raeburn 8422: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.1317 raeburn 8423: my ($homeserver,$sleep,$loopmax);
1.547 raeburn 8424: my $maxtries = 1;
1.508 raeburn 8425: if ($context eq 'automated') {
8426: $homeserver = $perlvar{'lonHostID'};
1.1317 raeburn 8427: $sleep = 2;
8428: $loopmax = 100;
1.547 raeburn 8429: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 8430: } else {
8431: $homeserver = &homeserver($cnum,$dom);
8432: }
1.838 albertel 8433: my $host=&hostname($homeserver);
1.506 raeburn 8434: my $cmd = '';
1.1000 raeburn 8435: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 8436: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 8437: }
8438: $cmd =~ s/%%$//;
8439: $cmd = &escape($cmd);
8440: my $query = 'fetchenrollment';
1.620 albertel 8441: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 8442: unless ($queryid=~/^\Q$host\E\_/) {
8443: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
8444: return 'error: '.$queryid;
8445: }
1.1317 raeburn 8446: my $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8447: my $tries = 1;
8448: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1.1317 raeburn 8449: $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8450: $tries ++;
8451: }
1.526 raeburn 8452: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 8453: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 8454: } else {
1.901 albertel 8455: my @responses = split(/:/,$reply);
1.1322 raeburn 8456: if (grep { $_ eq $homeserver } ¤t_machine_ids()) {
1.800 albertel 8457: foreach my $line (@responses) {
8458: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 8459: $$replyref{$key} = $value;
8460: }
8461: } else {
1.1117 foxr 8462: my $pathname = LONCAPA::tempdir();
1.800 albertel 8463: foreach my $line (@responses) {
8464: my ($key,$value) = split(/=/,$line);
1.506 raeburn 8465: $$replyref{$key} = $value;
8466: if ($value > 0) {
1.800 albertel 8467: foreach my $item (@{$$affiliatesref{$key}}) {
8468: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 8469: my $destname = $pathname.'/'.$filename;
8470: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 8471: if ($xml_classlist =~ /^error/) {
8472: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
8473: } else {
1.1359 raeburn 8474: if ( open(FILE,">",$destname) ) {
1.506 raeburn 8475: print FILE &unescape($xml_classlist);
8476: close(FILE);
1.526 raeburn 8477: } else {
8478: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 8479: }
8480: }
8481: }
8482: }
8483: }
8484: }
8485: return 'ok';
8486: }
8487: return 'error';
8488: }
8489:
1.242 www 8490: sub get_query_reply {
1.1317 raeburn 8491: my ($queryid,$sleep,$loopmax) = @_;;
8492: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) {
8493: $sleep = 0.2;
8494: }
8495: if (($loopmax eq '') || ($loopmax =~ /\D/)) {
8496: $loopmax = 100;
8497: }
1.1117 foxr 8498: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 8499: my $reply='';
1.1317 raeburn 8500: for (1..$loopmax) {
8501: sleep($sleep);
1.240 www 8502: if (-e $replyfile.'.end') {
1.1359 raeburn 8503: if (open(my $fh,"<",$replyfile)) {
1.904 albertel 8504: $reply = join('',<$fh>);
8505: close($fh);
1.240 www 8506: } else { return 'error: reply_file_error'; }
1.242 www 8507: return &unescape($reply);
8508: }
1.240 www 8509: }
1.242 www 8510: return 'timeout:'.$queryid;
1.240 www 8511: }
8512:
8513: sub courselog_query {
1.241 www 8514: #
8515: # possible filters:
8516: # url: url or symb
8517: # username
8518: # domain
8519: # action: view, submit, grade
8520: # start: timestamp
8521: # end: timestamp
8522: #
1.240 www 8523: my (%filters)=@_;
1.620 albertel 8524: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 8525: if ($filters{'url'}) {
8526: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
8527: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
8528: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
8529: }
1.620 albertel 8530: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
8531: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 8532: return &log_query($cname,$cdom,'courselog',%filters);
8533: }
8534:
8535: sub userlog_query {
1.858 raeburn 8536: #
8537: # possible filters:
8538: # action: log check role
8539: # start: timestamp
8540: # end: timestamp
8541: #
1.240 www 8542: my ($uname,$udom,%filters)=@_;
8543: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 8544: }
8545:
1.506 raeburn 8546: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
8547:
8548: sub auto_run {
1.508 raeburn 8549: my ($cnum,$cdom) = @_;
1.876 raeburn 8550: my $response = 0;
8551: my $settings;
8552: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
8553: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
8554: $settings = $domconfig{'autoenroll'};
8555: if ($settings->{'run'} eq '1') {
8556: $response = 1;
8557: }
8558: } else {
1.934 raeburn 8559: my $homeserver;
8560: if (&is_course($cdom,$cnum)) {
8561: $homeserver = &homeserver($cnum,$cdom);
8562: } else {
8563: $homeserver = &domain($cdom,'primary');
8564: }
8565: if ($homeserver ne 'no_host') {
8566: $response = &reply('autorun:'.$cdom,$homeserver);
8567: }
1.876 raeburn 8568: }
1.506 raeburn 8569: return $response;
8570: }
1.776 albertel 8571:
1.506 raeburn 8572: sub auto_get_sections {
1.508 raeburn 8573: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 8574: my $homeserver;
8575: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8576: $homeserver = &homeserver($cnum,$cdom);
8577: }
8578: if (!defined($homeserver)) {
8579: if ($cdom =~ /^$match_domain$/) {
8580: $homeserver = &domain($cdom,'primary');
8581: }
8582: }
8583: my @secs;
8584: if (defined($homeserver)) {
8585: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
8586: unless ($response eq 'refused') {
8587: @secs = split(/:/,$response);
8588: }
1.506 raeburn 8589: }
8590: return @secs;
8591: }
1.776 albertel 8592:
1.506 raeburn 8593: sub auto_new_course {
1.1099 raeburn 8594: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 8595: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 8596: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 8597: return $response;
8598: }
1.776 albertel 8599:
1.506 raeburn 8600: sub auto_validate_courseID {
1.508 raeburn 8601: my ($cnum,$cdom,$inst_course_id) = @_;
8602: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 8603: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 8604: return $response;
8605: }
1.776 albertel 8606:
1.1007 raeburn 8607: sub auto_validate_instcode {
1.1020 raeburn 8608: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 8609: my ($homeserver,$response);
8610: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8611: $homeserver = &homeserver($cnum,$cdom);
8612: }
8613: if (!defined($homeserver)) {
8614: if ($cdom =~ /^$match_domain$/) {
8615: $homeserver = &domain($cdom,'primary');
8616: }
8617: }
1.1065 raeburn 8618: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
8619: &escape($instcode).':'.&escape($owner),$homeserver));
1.1216 raeburn 8620: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
8621: return ($outcome,$description,$defaultcredits);
1.1007 raeburn 8622: }
8623:
1.506 raeburn 8624: sub auto_create_password {
1.873 raeburn 8625: my ($cnum,$cdom,$authparam,$udom) = @_;
8626: my ($homeserver,$response);
1.506 raeburn 8627: my $create_passwd = 0;
8628: my $authchk = '';
1.873 raeburn 8629: if ($udom =~ /^$match_domain$/) {
8630: $homeserver = &domain($udom,'primary');
8631: }
8632: if ($homeserver eq '') {
8633: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8634: $homeserver = &homeserver($cnum,$cdom);
8635: }
8636: }
8637: if ($homeserver eq '') {
8638: $authchk = 'nodomain';
1.506 raeburn 8639: } else {
1.873 raeburn 8640: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
8641: if ($response eq 'refused') {
8642: $authchk = 'refused';
8643: } else {
1.901 albertel 8644: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 8645: }
1.506 raeburn 8646: }
8647: return ($authparam,$create_passwd,$authchk);
8648: }
8649:
1.706 raeburn 8650: sub auto_photo_permission {
8651: my ($cnum,$cdom,$students) = @_;
8652: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 8653: my ($outcome,$perm_reqd,$conditions) =
8654: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 8655: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8656: return (undef,undef);
8657: }
1.706 raeburn 8658: return ($outcome,$perm_reqd,$conditions);
8659: }
8660:
8661: sub auto_checkphotos {
8662: my ($uname,$udom,$pid) = @_;
8663: my $homeserver = &homeserver($uname,$udom);
8664: my ($result,$resulttype);
8665: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 8666: &escape($uname).':'.&escape($pid),
8667: $homeserver));
1.709 albertel 8668: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8669: return (undef,undef);
8670: }
1.706 raeburn 8671: if ($outcome) {
8672: ($result,$resulttype) = split(/:/,$outcome);
8673: }
8674: return ($result,$resulttype);
8675: }
8676:
8677: sub auto_photochoice {
8678: my ($cnum,$cdom) = @_;
8679: my $homeserver = &homeserver($cnum,$cdom);
8680: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 8681: &escape($cdom),
8682: $homeserver)));
1.709 albertel 8683: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8684: return (undef,undef);
8685: }
1.706 raeburn 8686: return ($update,$comment);
8687: }
8688:
8689: sub auto_photoupdate {
8690: my ($affiliatesref,$dom,$cnum,$photo) = @_;
8691: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 8692: my $host=&hostname($homeserver);
1.706 raeburn 8693: my $cmd = '';
8694: my $maxtries = 1;
1.800 albertel 8695: foreach my $affiliate (keys(%{$affiliatesref})) {
8696: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 8697: }
8698: $cmd =~ s/%%$//;
8699: $cmd = &escape($cmd);
8700: my $query = 'institutionalphotos';
8701: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
8702: unless ($queryid=~/^\Q$host\E\_/) {
8703: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
8704: return 'error: '.$queryid;
8705: }
8706: my $reply = &get_query_reply($queryid);
8707: my $tries = 1;
8708: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
8709: $reply = &get_query_reply($queryid);
8710: $tries ++;
8711: }
8712: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
8713: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
8714: } else {
8715: my @responses = split(/:/,$reply);
8716: my $outcome = shift(@responses);
8717: foreach my $item (@responses) {
8718: my ($key,$value) = split(/=/,$item);
8719: $$photo{$key} = $value;
8720: }
8721: return $outcome;
8722: }
8723: return 'error';
8724: }
8725:
1.521 raeburn 8726: sub auto_instcode_format {
1.793 albertel 8727: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
8728: $cat_order) = @_;
1.521 raeburn 8729: my $courses = '';
1.772 raeburn 8730: my @homeservers;
1.521 raeburn 8731: if ($caller eq 'global') {
1.841 albertel 8732: my %servers = &get_servers($codedom,'library');
8733: foreach my $tryserver (keys(%servers)) {
8734: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8735: push(@homeservers,$tryserver);
8736: }
1.584 raeburn 8737: }
1.1022 raeburn 8738: } elsif ($caller eq 'requests') {
8739: if ($codedom =~ /^$match_domain$/) {
8740: my $chome = &domain($codedom,'primary');
8741: unless ($chome eq 'no_host') {
8742: push(@homeservers,$chome);
8743: }
8744: }
1.521 raeburn 8745: } else {
1.772 raeburn 8746: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 8747: }
1.793 albertel 8748: foreach my $code (keys(%{$instcodes})) {
8749: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 8750: }
8751: chop($courses);
1.772 raeburn 8752: my $ok_response = 0;
8753: my $response;
8754: while (@homeservers > 0 && $ok_response == 0) {
8755: my $server = shift(@homeservers);
8756: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
8757: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
8758: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 8759: split(/:/,$response);
1.772 raeburn 8760: %{$codes} = (%{$codes},&str2hash($codes_str));
8761: push(@{$codetitles},&str2array($codetitles_str));
8762: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
8763: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
8764: $ok_response = 1;
8765: }
8766: }
8767: if ($ok_response) {
1.521 raeburn 8768: return 'ok';
1.772 raeburn 8769: } else {
8770: return $response;
1.521 raeburn 8771: }
8772: }
8773:
1.792 raeburn 8774: sub auto_instcode_defaults {
8775: my ($domain,$returnhash,$code_order) = @_;
8776: my @homeservers;
1.841 albertel 8777:
8778: my %servers = &get_servers($domain,'library');
8779: foreach my $tryserver (keys(%servers)) {
8780: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8781: push(@homeservers,$tryserver);
8782: }
1.792 raeburn 8783: }
1.841 albertel 8784:
1.792 raeburn 8785: my $response;
1.841 albertel 8786: foreach my $server (@homeservers) {
1.792 raeburn 8787: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 8788: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
8789:
8790: foreach my $pair (split(/\&/,$response)) {
8791: my ($name,$value)=split(/\=/,$pair);
8792: if ($name eq 'code_order') {
8793: @{$code_order} = split(/\&/,&unescape($value));
8794: } else {
8795: $returnhash->{&unescape($name)}=&unescape($value);
8796: }
8797: }
8798: return 'ok';
1.792 raeburn 8799: }
1.841 albertel 8800:
8801: return $response;
1.1003 raeburn 8802: }
8803:
8804: sub auto_possible_instcodes {
1.1007 raeburn 8805: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
8806: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
8807: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
8808: return;
8809: }
1.1003 raeburn 8810: my (@homeservers,$uhome);
8811: if (defined(&domain($domain,'primary'))) {
8812: $uhome=&domain($domain,'primary');
8813: push(@homeservers,&domain($domain,'primary'));
8814: } else {
8815: my %servers = &get_servers($domain,'library');
8816: foreach my $tryserver (keys(%servers)) {
8817: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8818: push(@homeservers,$tryserver);
8819: }
8820: }
8821: }
8822: my $response;
8823: foreach my $server (@homeservers) {
8824: $response=&reply('autopossibleinstcodes:'.$domain,$server);
8825: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 8826: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
8827: split(':',$response);
8828: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
8829: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 8830: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 8831: my ($name,$value)=split('=',$item);
8832: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 8833: }
8834: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 8835: my ($name,$value)=split('=',$item);
8836: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 8837: }
8838: return 'ok';
8839: }
8840: return $response;
8841: }
1.792 raeburn 8842:
1.1010 raeburn 8843: sub auto_courserequest_checks {
8844: my ($dom) = @_;
1.1020 raeburn 8845: my ($homeserver,%validations);
8846: if ($dom =~ /^$match_domain$/) {
8847: $homeserver = &domain($dom,'primary');
8848: }
8849: unless ($homeserver eq 'no_host') {
8850: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
8851: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
8852: my @items = split(/&/,$response);
8853: foreach my $item (@items) {
8854: my ($key,$value) = split('=',$item);
8855: $validations{&unescape($key)} = &thaw_unescape($value);
8856: }
8857: }
8858: }
1.1010 raeburn 8859: return %validations;
8860: }
8861:
1.1020 raeburn 8862: sub auto_courserequest_validation {
1.1255 raeburn 8863: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
1.1020 raeburn 8864: my ($homeserver,$response);
8865: if ($dom =~ /^$match_domain$/) {
8866: $homeserver = &domain($dom,'primary');
8867: }
1.1255 raeburn 8868: unless ($homeserver eq 'no_host') {
8869: my $customdata;
8870: if (ref($custominfo) eq 'HASH') {
8871: $customdata = &freeze_escape($custominfo);
8872: }
1.1020 raeburn 8873: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 8874: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1255 raeburn 8875: ':'.&escape($instcode).':'.&escape($instseclist).':'.
8876: $customdata,$homeserver));
1.1020 raeburn 8877: }
8878: return $response;
8879: }
8880:
1.777 albertel 8881: sub auto_validate_class_sec {
1.918 raeburn 8882: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 8883: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 8884: my $ownerlist;
8885: if (ref($owners) eq 'ARRAY') {
8886: $ownerlist = join(',',@{$owners});
8887: } else {
8888: $ownerlist = $owners;
8889: }
1.773 raeburn 8890: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 8891: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 8892: return $response;
8893: }
8894:
1.1367 ! raeburn 8895: sub auto_validate_instclasses {
! 8896: my ($cdom,$cnum,$owners,$classesref) = @_;
! 8897: my ($homeserver,%validations);
! 8898: $homeserver = &homeserver($cnum,$cdom);
! 8899: unless ($homeserver eq 'no_host') {
! 8900: my $ownerlist;
! 8901: if (ref($owners) eq 'ARRAY') {
! 8902: $ownerlist = join(',',@{$owners});
! 8903: } else {
! 8904: $ownerlist = $owners;
! 8905: }
! 8906: if (ref($classesref) eq 'HASH') {
! 8907: my $classes = &freeze_escape($classesref);
! 8908: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
! 8909: ':'.$cdom.':'.$classes,$homeserver);
! 8910: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
! 8911: my @items = split(/&/,$response);
! 8912: foreach my $item (@items) {
! 8913: my ($key,$value) = split('=',$item);
! 8914: $validations{&unescape($key)} = &thaw_unescape($value);
! 8915: }
! 8916: }
! 8917: }
! 8918: }
! 8919: return %validations;
! 8920: }
! 8921:
1.1248 raeburn 8922: sub auto_crsreq_update {
8923: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
1.1257 raeburn 8924: $code,$accessstart,$accessend,$inbound) = @_;
1.1248 raeburn 8925: my ($homeserver,%crsreqresponse);
8926: if ($cdom =~ /^$match_domain$/) {
8927: $homeserver = &domain($cdom,'primary');
8928: }
8929: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
8930: my $info;
8931: if (ref($inbound) eq 'HASH') {
8932: $info = &freeze_escape($inbound);
8933: }
8934: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
8935: ':'.&escape($action).':'.&escape($ownername).':'.
8936: &escape($ownerdomain).':'.&escape($fullname).':'.
1.1257 raeburn 8937: &escape($title).':'.&escape($code).':'.
8938: &escape($accessstart).':'.&escape($accessend).':'.$info,
8939: $homeserver);
1.1248 raeburn 8940: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
8941: my @items = split(/&/,$response);
8942: foreach my $item (@items) {
8943: my ($key,$value) = split('=',$item);
8944: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
8945: }
8946: }
8947: }
8948: return \%crsreqresponse;
8949: }
8950:
1.1305 raeburn 8951: sub auto_export_grades {
1.1309 raeburn 8952: my ($cdom,$cnum,$inforef,$gradesref) = @_;
8953: my ($homeserver,%exportresponse);
8954: if ($cdom =~ /^$match_domain$/) {
8955: $homeserver = &domain($cdom,'primary');
8956: }
8957: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
8958: my $info;
8959: if (ref($inforef) eq 'HASH') {
8960: $info = &freeze_escape($inforef);
8961: }
8962: if (ref($gradesref) eq 'HASH') {
8963: my $grades = &freeze_escape($gradesref);
8964: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
8965: $info.':'.$grades,$homeserver);
8966: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) {
8967: my @items = split(/&/,$response);
8968: foreach my $item (@items) {
8969: my ($key,$value) = split('=',$item);
8970: $exportresponse{&unescape($key)} = &thaw_unescape($value);
8971: }
8972: }
8973: }
8974: }
8975: return \%exportresponse;
1.1305 raeburn 8976: }
8977:
1.1287 raeburn 8978: sub check_instcode_cloning {
8979: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
8980: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
8981: return;
8982: }
8983: my $canclone;
8984: if (@{$code_order} > 0) {
8985: my $instcoderegexp ='^';
8986: my @clonecodes = split(/\&/,$cloner);
8987: foreach my $item (@{$code_order}) {
8988: if (grep(/^\Q$item\E=/,@clonecodes)) {
8989: foreach my $pair (@clonecodes) {
8990: my ($key,$val) = split(/\=/,$pair,2);
8991: $val = &unescape($val);
8992: if ($key eq $item) {
8993: $instcoderegexp .= '('.$val.')';
8994: last;
8995: }
8996: }
8997: } else {
8998: $instcoderegexp .= $codedefaults->{$item};
8999: }
9000: }
9001: $instcoderegexp .= '$';
9002: my (@from,@to);
9003: eval {
9004: (@from) = ($clonefromcode =~ /$instcoderegexp/);
9005: (@to) = ($clonetocode =~ /$instcoderegexp/);
9006: };
9007: if ((@from > 0) && (@to > 0)) {
9008: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
9009: if (!@diffs) {
9010: $canclone = 1;
9011: }
9012: }
9013: }
9014: return $canclone;
9015: }
9016:
9017: sub default_instcode_cloning {
9018: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
9019: my (%codedefaults,@code_order,$canclone);
9020: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
9021: %codedefaults = %{$codedefaultsref};
9022: @code_order = @{$codeorderref};
9023: } elsif ($clonedom) {
9024: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
9025: }
9026: if (($domdefclone) && (@code_order)) {
9027: my @clonecodes = split(/\+/,$domdefclone);
9028: my $instcoderegexp ='^';
9029: foreach my $item (@code_order) {
9030: if (grep(/^\Q$item\E$/,@clonecodes)) {
9031: $instcoderegexp .= '('.$codedefaults{$item}.')';
9032: } else {
9033: $instcoderegexp .= $codedefaults{$item};
9034: }
9035: }
9036: $instcoderegexp .= '$';
9037: my (@from,@to);
9038: eval {
9039: (@from) = ($clonefromcode =~ /$instcoderegexp/);
9040: (@to) = ($clonetocode =~ /$instcoderegexp/);
9041: };
9042: if ((@from > 0) && (@to > 0)) {
9043: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
9044: if (!@diffs) {
9045: $canclone = 1;
9046: }
9047: }
9048: }
9049: return $canclone;
9050: }
9051:
1.679 raeburn 9052: # ------------------------------------------------------- Course Group routines
9053:
9054: sub get_coursegroups {
1.809 raeburn 9055: my ($cdom,$cnum,$group,$namespace) = @_;
9056: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 9057: }
9058:
1.679 raeburn 9059: sub modify_coursegroup {
9060: my ($cdom,$cnum,$groupsettings) = @_;
9061: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
9062: }
9063:
1.809 raeburn 9064: sub toggle_coursegroup_status {
9065: my ($cdom,$cnum,$group,$action) = @_;
9066: my ($from_namespace,$to_namespace);
9067: if ($action eq 'delete') {
9068: $from_namespace = 'coursegroups';
9069: $to_namespace = 'deleted_groups';
9070: } else {
9071: $from_namespace = 'deleted_groups';
9072: $to_namespace = 'coursegroups';
9073: }
9074: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 9075: if (my $tmp = &error(%curr_group)) {
9076: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
9077: return ('read error',$tmp);
9078: } else {
9079: my %savedsettings = %curr_group;
1.809 raeburn 9080: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 9081: my $deloutcome;
9082: if ($result eq 'ok') {
1.809 raeburn 9083: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 9084: } else {
9085: return ('write error',$result);
9086: }
9087: if ($deloutcome eq 'ok') {
9088: return 'ok';
9089: } else {
9090: return ('delete error',$deloutcome);
9091: }
9092: }
9093: }
9094:
1.679 raeburn 9095: sub modify_group_roles {
1.957 raeburn 9096: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 9097: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
9098: my $role = 'gr/'.&escape($userprivs);
9099: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 9100: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 9101: if ($result eq 'ok') {
9102: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
9103: }
1.679 raeburn 9104: return $result;
9105: }
9106:
9107: sub modify_coursegroup_membership {
9108: my ($cdom,$cnum,$membership) = @_;
9109: my $result = &put('groupmembership',$membership,$cdom,$cnum);
9110: return $result;
9111: }
9112:
1.682 raeburn 9113: sub get_active_groups {
9114: my ($udom,$uname,$cdom,$cnum) = @_;
9115: my $now = time;
9116: my %groups = ();
9117: foreach my $key (keys(%env)) {
1.811 albertel 9118: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 9119: my ($start,$end) = split(/\./,$env{$key});
9120: if (($end!=0) && ($end<$now)) { next; }
9121: if (($start!=0) && ($start>$now)) { next; }
9122: if ($1 eq $cdom && $2 eq $cnum) {
9123: $groups{$3} = $env{$key} ;
9124: }
9125: }
9126: }
9127: return %groups;
9128: }
9129:
1.683 raeburn 9130: sub get_group_membership {
9131: my ($cdom,$cnum,$group) = @_;
9132: return(&dump('groupmembership',$cdom,$cnum,$group));
9133: }
9134:
9135: sub get_users_groups {
9136: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 9137: my @usersgroups;
1.683 raeburn 9138: my $cachetime=1800;
9139:
9140: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 9141: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
9142: if (defined($cached)) {
1.734 albertel 9143: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 9144: } else {
9145: $grouplist = '';
1.816 raeburn 9146: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 9147: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 9148: my $access_end = $env{'course.'.$courseid.
9149: '.default_enrollment_end_date'};
9150: my $now = time;
9151: foreach my $key (keys(%roleshash)) {
9152: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
9153: my $group = $1;
9154: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
9155: my $start = $2;
9156: my $end = $1;
9157: if ($start == -1) { next; } # deleted from group
9158: if (($start!=0) && ($start>$now)) { next; }
9159: if (($end!=0) && ($end<$now)) {
9160: if ($access_end && $access_end < $now) {
9161: if ($access_end - $end < 86400) {
9162: push(@usersgroups,$group);
1.733 raeburn 9163: }
9164: }
1.817 raeburn 9165: next;
1.733 raeburn 9166: }
1.817 raeburn 9167: push(@usersgroups,$group);
1.683 raeburn 9168: }
9169: }
9170: }
1.817 raeburn 9171: @usersgroups = &sort_course_groups($courseid,@usersgroups);
9172: $grouplist = join(':',@usersgroups);
9173: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 9174: }
1.733 raeburn 9175: return @usersgroups;
1.683 raeburn 9176: }
9177:
9178: sub devalidate_getgroups_cache {
9179: my ($udom,$uname,$cdom,$cnum)=@_;
9180: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 9181:
1.683 raeburn 9182: my $hashid="$udom:$uname:$courseid";
9183: &devalidate_cache_new('getgroups',$hashid);
9184: }
9185:
1.12 www 9186: # ------------------------------------------------------------------ Plain Text
9187:
9188: sub plaintext {
1.988 raeburn 9189: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 9190: if ($short =~ m{^cr/}) {
1.758 albertel 9191: return (split('/',$short))[-1];
9192: }
1.742 raeburn 9193: if (!defined($cid)) {
9194: $cid = $env{'request.course.id'};
9195: }
9196: my %rolenames = (
1.1008 raeburn 9197: Course => 'std',
9198: Community => 'alt1',
1.1305 raeburn 9199: Placement => 'std',
1.742 raeburn 9200: );
1.1037 raeburn 9201: if ($cid ne '') {
9202: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
9203: unless ($forcedefault) {
9204: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
9205: &Apache::lonlocal::mt_escape(\$roletext);
9206: return &Apache::lonlocal::mt($roletext);
9207: }
9208: }
9209: }
9210: if ((defined($type)) && (defined($rolenames{$type})) &&
9211: (defined($rolenames{$type})) &&
9212: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 9213: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 9214: } elsif ($cid ne '') {
9215: my $crstype = $env{'course.'.$cid.'.type'};
9216: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
9217: (defined($prp{$short}{$rolenames{$crstype}}))) {
9218: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
9219: }
1.742 raeburn 9220: }
1.1037 raeburn 9221: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 9222: }
9223:
9224: # ----------------------------------------------------------------- Assign Role
9225:
9226: sub assignrole {
1.957 raeburn 9227: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
9228: $context)=@_;
1.21 www 9229: my $mrole;
9230: if ($role =~ /^cr\//) {
1.393 www 9231: my $cwosec=$url;
1.811 albertel 9232: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 9233: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 9234: my $refused = 1;
9235: if ($context eq 'requestcourses') {
9236: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
9237: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
9238: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
9239: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
9240: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9241: if ($crsenv{'internal.courseowner'} eq
9242: $env{'user.name'}.':'.$env{'user.domain'}) {
9243: $refused = '';
9244: }
9245: }
9246: }
9247: }
9248: }
9249: if ($refused) {
9250: &logthis('Refused custom assignrole: '.
9251: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
9252: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
9253: return 'refused';
9254: }
1.104 www 9255: }
1.21 www 9256: $mrole='cr';
1.678 raeburn 9257: } elsif ($role =~ /^gr\//) {
9258: my $cwogrp=$url;
1.811 albertel 9259: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 9260: unless (&allowed('mdg',$cwogrp)) {
9261: &logthis('Refused group assignrole: '.
9262: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
9263: $env{'user.name'}.' at '.$env{'user.domain'});
9264: return 'refused';
9265: }
9266: $mrole='gr';
1.21 www 9267: } else {
1.82 www 9268: my $cwosec=$url;
1.811 albertel 9269: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 9270: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
9271: my $refused;
9272: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
9273: if (!(&allowed('c'.$role,$url))) {
9274: $refused = 1;
9275: }
9276: } else {
9277: $refused = 1;
9278: }
1.947 raeburn 9279: if ($refused) {
1.1045 raeburn 9280: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
9281: if (!$selfenroll && $context eq 'course') {
9282: my %crsenv;
9283: if ($role eq 'cc' || $role eq 'co') {
9284: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9285: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
9286: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
9287: if ($crsenv{'internal.courseowner'} eq
9288: $env{'user.name'}.':'.$env{'user.domain'}) {
9289: $refused = '';
9290: }
9291: }
9292: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
9293: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
9294: if ($crsenv{'internal.courseowner'} eq
9295: $env{'user.name'}.':'.$env{'user.domain'}) {
9296: $refused = '';
9297: }
9298: }
9299: }
9300: }
9301: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 9302: $refused = '';
1.1017 raeburn 9303: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 9304: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 9305: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 9306: my $wrongcc;
9307: if ($cnum =~ /^$match_community$/) {
9308: $wrongcc = 1 if ($role eq 'cc');
9309: } else {
9310: $wrongcc = 1 if ($role eq 'co');
9311: }
9312: unless ($wrongcc) {
9313: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9314: if ($crsenv{'internal.courseowner'} eq
9315: $env{'user.name'}.':'.$env{'user.domain'}) {
9316: $refused = '';
9317: }
1.1017 raeburn 9318: }
9319: }
1.1183 raeburn 9320: } elsif ($context eq 'requestauthor') {
9321: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
9322: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
9323: if ($env{'environment.requestauthor'} eq 'automatic') {
9324: $refused = '';
9325: } else {
9326: my %domdefaults = &get_domain_defaults($udom);
9327: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
9328: my $checkbystatus;
9329: if ($env{'user.adv'}) {
9330: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
9331: if ($disposition eq 'automatic') {
9332: $refused = '';
9333: } elsif ($disposition eq '') {
9334: $checkbystatus = 1;
9335: }
9336: } else {
9337: $checkbystatus = 1;
9338: }
9339: if ($checkbystatus) {
9340: if ($env{'environment.inststatus'}) {
9341: my @inststatuses = split(/,/,$env{'environment.inststatus'});
9342: foreach my $type (@inststatuses) {
9343: if (($type ne '') &&
9344: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
9345: $refused = '';
9346: }
9347: }
9348: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
9349: $refused = '';
9350: }
9351: }
9352: }
9353: }
9354: }
1.1017 raeburn 9355: }
9356: if ($refused) {
1.947 raeburn 9357: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
9358: ' '.$role.' '.$end.' '.$start.' by '.
9359: $env{'user.name'}.' at '.$env{'user.domain'});
9360: return 'refused';
9361: }
1.932 raeburn 9362: }
1.1131 raeburn 9363: } elsif ($role eq 'au') {
9364: if ($url ne '/'.$udom.'/') {
9365: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
9366: ' to assign author role for '.$uname.':'.$udom.
9367: ' in domain: '.$url.' refused (wrong domain).');
9368: return 'refused';
9369: }
1.104 www 9370: }
1.21 www 9371: $mrole=$role;
9372: }
1.620 albertel 9373: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 9374: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 9375: if ($end) { $command.='_'.$end; }
1.21 www 9376: if ($start) {
9377: if ($end) {
1.81 www 9378: $command.='_'.$start;
1.21 www 9379: } else {
1.81 www 9380: $command.='_0_'.$start;
1.21 www 9381: }
9382: }
1.739 raeburn 9383: my $origstart = $start;
9384: my $origend = $end;
1.957 raeburn 9385: my $delflag;
1.357 www 9386: # actually delete
9387: if ($deleteflag) {
1.373 www 9388: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 9389: # modify command to delete the role
1.620 albertel 9390: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 9391: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 9392: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 9393: # set start and finish to negative values for userrolelog
9394: $start=-1;
9395: $end=-1;
1.957 raeburn 9396: $delflag = 1;
1.357 www 9397: }
9398: }
9399: # send command
1.349 www 9400: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 9401: # log new user role if status is ok
1.349 www 9402: if ($answer eq 'ok') {
1.663 raeburn 9403: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1184 raeburn 9404: if (($role eq 'cc') || ($role eq 'in') ||
9405: ($role eq 'ep') || ($role eq 'ad') ||
9406: ($role eq 'ta') || ($role eq 'st') ||
9407: ($role=~/^cr/) || ($role eq 'gr') ||
9408: ($role eq 'co')) {
1.1200 raeburn 9409: # for course roles, perform group memberships changes triggered by role change.
9410: unless ($role =~ /^gr/) {
9411: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
9412: $origstart,$selfenroll,$context);
9413: }
1.1184 raeburn 9414: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9415: $selfenroll,$context);
9416: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
1.1334 raeburn 9417: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') ||
9418: ($role eq 'da')) {
1.1184 raeburn 9419: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9420: $context);
9421: } elsif (($role eq 'ca') || ($role eq 'aa')) {
9422: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9423: $context);
9424: }
1.1053 raeburn 9425: if ($role eq 'cc') {
9426: &autoupdate_coowners($url,$end,$start,$uname,$udom);
9427: }
1.349 www 9428: }
9429: return $answer;
1.169 harris41 9430: }
9431:
1.1053 raeburn 9432: sub autoupdate_coowners {
9433: my ($url,$end,$start,$uname,$udom) = @_;
9434: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
9435: if (($cdom ne '') && ($cnum ne '')) {
9436: my $now = time;
9437: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
9438: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
9439: my %coursehash = &coursedescription($cdom.'_'.$cnum);
9440: my $instcode = $coursehash{'internal.coursecode'};
9441: if ($instcode ne '') {
1.1056 raeburn 9442: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
9443: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 9444: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 9445: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
9446: if ($result eq 'valid') {
9447: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 9448: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9449: push(@newcoowners,$coowner);
9450: }
9451: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
9452: push(@newcoowners,$uname.':'.$udom);
9453: }
9454: @newcoowners = sort(@newcoowners);
9455: } else {
9456: push(@newcoowners,$uname.':'.$udom);
9457: }
9458: } else {
9459: if ($coursehash{'internal.co-owners'}) {
9460: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9461: unless ($coowner eq $uname.':'.$udom) {
9462: push(@newcoowners,$coowner);
9463: }
9464: }
9465: unless (@newcoowners > 0) {
9466: $delcoowners = 1;
9467: $coowners = '';
9468: }
9469: }
9470: }
9471: if (@newcoowners || $delcoowners) {
9472: &store_coowners($cdom,$cnum,$coursehash{'home'},
9473: $delcoowners,@newcoowners);
9474: }
9475: }
9476: }
9477: }
9478: }
9479: }
9480: }
9481:
9482: sub store_coowners {
9483: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
9484: my $cid = $cdom.'_'.$cnum;
9485: my ($coowners,$delresult,$putresult);
9486: if (@newcoowners) {
9487: $coowners = join(',',@newcoowners);
9488: my %coownershash = (
9489: 'internal.co-owners' => $coowners,
9490: );
9491: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
9492: if ($putresult eq 'ok') {
9493: if ($env{'course.'.$cid.'.num'} eq $cnum) {
9494: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
9495: }
9496: }
9497: }
9498: if ($delcoowners) {
9499: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
9500: if ($delresult eq 'ok') {
9501: if ($env{'course.'.$cid.'.internal.co-owners'}) {
9502: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
9503: }
9504: }
9505: }
9506: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
9507: my %crsinfo =
9508: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
9509: if (ref($crsinfo{$cid}) eq 'HASH') {
9510: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
9511: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
9512: }
9513: }
9514: }
9515:
1.169 harris41 9516: # -------------------------------------------------- Modify user authentication
1.197 www 9517: # Overrides without validation
9518:
1.169 harris41 9519: sub modifyuserauth {
9520: my ($udom,$uname,$umode,$upass)=@_;
9521: my $uhome=&homeserver($uname,$udom);
1.197 www 9522: unless (&allowed('mau',$udom)) { return 'refused'; }
9523: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 9524: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9525: ' in domain '.$env{'request.role.domain'});
1.169 harris41 9526: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
9527: &escape($upass),$uhome);
1.620 albertel 9528: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 9529: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
9530: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
9531: &log($udom,,$uname,$uhome,
1.620 albertel 9532: 'Authentication changed by '.$env{'user.domain'}.', '.
9533: $env{'user.name'}.', '.$umode.
1.197 www 9534: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 9535: unless ($reply eq 'ok') {
1.197 www 9536: &logthis('Authentication mode error: '.$reply);
1.169 harris41 9537: return 'error: '.$reply;
9538: }
1.170 harris41 9539: return 'ok';
1.80 www 9540: }
9541:
1.81 www 9542: # --------------------------------------------------------------- Modify a user
1.80 www 9543:
1.81 www 9544: sub modifyuser {
1.206 matthew 9545: my ($udom, $uname, $uid,
9546: $umode, $upass, $first,
9547: $middle, $last, $gene,
1.1058 raeburn 9548: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 9549: $udom= &LONCAPA::clean_domain($udom);
9550: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 9551: my $showcandelete = 'none';
9552: if (ref($candelete) eq 'ARRAY') {
9553: if (@{$candelete} > 0) {
9554: $showcandelete = join(', ',@{$candelete});
9555: }
9556: }
1.81 www 9557: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 9558: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 9559: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 9560: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
9561: ' desiredhome not specified').
1.620 albertel 9562: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9563: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 9564: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 9565: my $newuser;
9566: if ($uhome eq 'no_host') {
9567: $newuser = 1;
9568: }
1.80 www 9569: # ----------------------------------------------------------------- Create User
1.406 albertel 9570: if (($uhome eq 'no_host') &&
9571: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 9572: my $unhome='';
1.844 albertel 9573: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 9574: $unhome = $desiredhome;
1.620 albertel 9575: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
9576: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 9577: } else { # load balancing routine for determining $unhome
1.81 www 9578: my $loadm=10000000;
1.841 albertel 9579: my %servers = &get_servers($udom,'library');
9580: foreach my $tryserver (keys(%servers)) {
9581: my $answer=reply('load',$tryserver);
9582: if (($answer=~/\d+/) && ($answer<$loadm)) {
9583: $loadm=$answer;
9584: $unhome=$tryserver;
9585: }
1.80 www 9586: }
9587: }
9588: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 9589: return 'error: unable to find a home server for '.$uname.
9590: ' in domain '.$udom;
1.80 www 9591: }
9592: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
9593: &escape($upass),$unhome);
9594: unless ($reply eq 'ok') {
9595: return 'error: '.$reply;
9596: }
1.230 stredwic 9597: $uhome=&homeserver($uname,$udom,'true');
1.80 www 9598: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 9599: return 'error: unable verify users home machine.';
1.80 www 9600: }
1.209 matthew 9601: } # End of creation of new user
1.80 www 9602: # ---------------------------------------------------------------------- Add ID
9603: if ($uid) {
9604: $uid=~tr/A-Z/a-z/;
9605: my %uidhash=&idrget($udom,$uname);
1.196 www 9606: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
9607: && (!$forceid)) {
1.80 www 9608: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 9609: return 'error: user id "'.$uid.'" does not match '.
9610: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 9611: }
9612: } else {
1.1300 raeburn 9613: &idput($udom,{$uname => $uid},$uhome,'ids');
1.80 www 9614: }
9615: }
9616: # -------------------------------------------------------------- Add names, etc
1.313 matthew 9617: my @tmp=&get('environment',
1.899 raeburn 9618: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 9619: 'permanentemail','inststatus'],
1.134 albertel 9620: $udom,$uname);
1.1075 raeburn 9621: my (%names,%oldnames);
1.313 matthew 9622: if ($tmp[0] =~ m/^error:.*/) {
9623: %names=();
9624: } else {
9625: %names = @tmp;
1.1075 raeburn 9626: %oldnames = %names;
1.313 matthew 9627: }
1.388 www 9628: #
1.1058 raeburn 9629: # If name, email and/or uid are blank (e.g., because an uploaded file
9630: # of users did not contain them), do not overwrite existing values
9631: # unless field is in $candelete array ref.
9632: #
9633:
9634: my @fields = ('firstname','middlename','lastname','generation',
9635: 'permanentemail','id');
9636: my %newvalues;
9637: if (ref($candelete) eq 'ARRAY') {
9638: foreach my $field (@fields) {
9639: if (grep(/^\Q$field\E$/,@{$candelete})) {
9640: if ($field eq 'firstname') {
9641: $names{$field} = $first;
9642: } elsif ($field eq 'middlename') {
9643: $names{$field} = $middle;
9644: } elsif ($field eq 'lastname') {
9645: $names{$field} = $last;
9646: } elsif ($field eq 'generation') {
9647: $names{$field} = $gene;
9648: } elsif ($field eq 'permanentemail') {
9649: $names{$field} = $email;
9650: } elsif ($field eq 'id') {
9651: $names{$field} = $uid;
9652: }
9653: }
9654: }
9655: }
1.388 www 9656: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 9657: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 9658: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 9659: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 9660: if ($email) {
9661: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 9662: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 9663: }
1.899 raeburn 9664: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 9665: if (defined($inststatus)) {
9666: $names{'inststatus'} = '';
9667: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
9668: if (ref($usertypes) eq 'HASH') {
9669: my @okstatuses;
9670: foreach my $item (split(/:/,$inststatus)) {
9671: if (defined($usertypes->{$item})) {
9672: push(@okstatuses,$item);
9673: }
9674: }
9675: if (@okstatuses) {
9676: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
9677: }
9678: }
9679: }
1.1075 raeburn 9680: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 9681: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 9682: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 9683: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
9684: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
9685: } else {
9686: $logmsg .= ' during self creation';
9687: }
1.1075 raeburn 9688: my $changed;
9689: if ($newuser) {
9690: $changed = 1;
9691: } else {
9692: foreach my $field (@fields) {
9693: if ($names{$field} ne $oldnames{$field}) {
9694: $changed = 1;
9695: last;
9696: }
9697: }
9698: }
9699: unless ($changed) {
9700: $logmsg = 'No changes in user information needed for: '.$logmsg;
9701: &logthis($logmsg);
9702: return 'ok';
9703: }
9704: my $reply = &put('environment', \%names, $udom,$uname);
9705: if ($reply ne 'ok') {
9706: return 'error: '.$reply;
9707: }
1.1087 raeburn 9708: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
9709: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
9710: }
1.1075 raeburn 9711: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
9712: &devalidate_cache_new('namescache',$uname.':'.$udom);
9713: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 9714: &logthis($logmsg);
1.134 albertel 9715: return 'ok';
1.80 www 9716: }
9717:
1.81 www 9718: # -------------------------------------------------------------- Modify student
1.80 www 9719:
1.81 www 9720: sub modifystudent {
9721: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 9722: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.1314 raeburn 9723: $selfenroll,$context,$inststatus,$credits,$instsec)=@_;
1.455 albertel 9724: if (!$cid) {
1.620 albertel 9725: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9726: return 'not_in_class';
9727: }
1.80 www 9728: }
9729: # --------------------------------------------------------------- Make the user
1.81 www 9730: my $reply=&modifyuser
1.209 matthew 9731: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 9732: $desiredhome,$email,$inststatus);
1.80 www 9733: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 9734: # This will cause &modify_student_enrollment to get the uid from the
1.1235 raeburn 9735: # student's environment
1.297 matthew 9736: $uid = undef if (!$forceid);
1.455 albertel 9737: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.1216 raeburn 9738: $gene,$usec,$end,$start,$type,$locktype,
1.1314 raeburn 9739: $cid,$selfenroll,$context,$credits,$instsec);
1.297 matthew 9740: return $reply;
9741: }
9742:
9743: sub modify_student_enrollment {
1.1216 raeburn 9744: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
1.1314 raeburn 9745: $locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_;
1.455 albertel 9746: my ($cdom,$cnum,$chome);
9747: if (!$cid) {
1.620 albertel 9748: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9749: return 'not_in_class';
9750: }
1.620 albertel 9751: $cdom=$env{'course.'.$cid.'.domain'};
9752: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 9753: } else {
9754: ($cdom,$cnum)=split(/_/,$cid);
9755: }
1.620 albertel 9756: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 9757: if (!$chome) {
1.457 raeburn 9758: $chome=&homeserver($cnum,$cdom);
1.297 matthew 9759: }
1.455 albertel 9760: if (!$chome) { return 'unknown_course'; }
1.297 matthew 9761: # Make sure the user exists
1.81 www 9762: my $uhome=&homeserver($uname,$udom);
9763: if (($uhome eq '') || ($uhome eq 'no_host')) {
9764: return 'error: no such user';
9765: }
1.297 matthew 9766: # Get student data if we were not given enough information
9767: if (!defined($first) || $first eq '' ||
9768: !defined($last) || $last eq '' ||
9769: !defined($uid) || $uid eq '' ||
9770: !defined($middle) || $middle eq '' ||
9771: !defined($gene) || $gene eq '') {
1.294 matthew 9772: # They did not supply us with enough data to enroll the student, so
9773: # we need to pick up more information.
1.297 matthew 9774: my %tmp = &get('environment',
1.294 matthew 9775: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 9776: ,$udom,$uname);
9777:
1.800 albertel 9778: #foreach my $key (keys(%tmp)) {
9779: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 9780: #}
1.294 matthew 9781: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
9782: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
9783: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 9784: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 9785: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
9786: }
1.556 albertel 9787: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 9788: my $user = "$uname:$udom";
9789: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 9790: my $reply=cput('classlist',
1.1148 raeburn 9791: {$user =>
1.1314 raeburn 9792: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },
1.487 albertel 9793: $cdom,$cnum);
1.1148 raeburn 9794: if (($reply eq 'ok') || ($reply eq 'delayed')) {
9795: &devalidate_getsection_cache($udom,$uname,$cid);
9796: } else {
1.81 www 9797: return 'error: '.$reply;
9798: }
1.297 matthew 9799: # Add student role to user
1.83 www 9800: my $uurl='/'.$cid;
1.81 www 9801: $uurl=~s/\_/\//g;
9802: if ($usec) {
9803: $uurl.='/'.$usec;
9804: }
1.1148 raeburn 9805: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
9806: $selfenroll,$context);
9807: if ($result ne 'ok') {
9808: if ($old_entry{$user} ne '') {
9809: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
9810: } else {
9811: $reply = &del('classlist',[$user],$cdom,$cnum);
9812: }
9813: }
9814: return $result;
1.21 www 9815: }
9816:
1.556 albertel 9817: sub format_name {
9818: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
9819: my $name;
9820: if ($first ne 'lastname') {
9821: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
9822: } else {
9823: if ($lastname=~/\S/) {
9824: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
9825: $name=~s/\s+,/,/;
9826: } else {
9827: $name.= $firstname.' '.$middlename.' '.$generation;
9828: }
9829: }
9830: $name=~s/^\s+//;
9831: $name=~s/\s+$//;
9832: $name=~s/\s+/ /g;
9833: return $name;
9834: }
9835:
1.84 www 9836: # ------------------------------------------------- Write to course preferences
9837:
9838: sub writecoursepref {
9839: my ($courseid,%prefs)=@_;
9840: $courseid=~s/^\///;
9841: $courseid=~s/\_/\//g;
9842: my ($cdomain,$cnum)=split(/\//,$courseid);
9843: my $chome=homeserver($cnum,$cdomain);
9844: if (($chome eq '') || ($chome eq 'no_host')) {
9845: return 'error: no such course';
9846: }
9847: my $cstring='';
1.800 albertel 9848: foreach my $pref (keys(%prefs)) {
9849: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 9850: }
1.84 www 9851: $cstring=~s/\&$//;
9852: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
9853: }
9854:
9855: # ---------------------------------------------------------- Make/modify course
9856:
9857: sub createcourse {
1.741 raeburn 9858: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 9859: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 9860: $url=&declutter($url);
9861: my $cid='';
1.1028 raeburn 9862: if ($context eq 'requestcourses') {
9863: my $can_create = 0;
9864: my ($ownername,$ownerdom) = split(':',$course_owner);
9865: if ($udom eq $ownerdom) {
9866: if (&usertools_access($ownername,$ownerdom,$category,undef,
9867: $context)) {
9868: $can_create = 1;
9869: }
9870: } else {
9871: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
9872: $category);
9873: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
9874: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
9875: if (@curr > 0) {
9876: my @options = qw(approval validate autolimit);
9877: my $optregex = join('|',@options);
9878: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
9879: $can_create = 1;
9880: }
9881: }
9882: }
9883: }
9884: if ($can_create) {
9885: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
9886: unless (&allowed('ccc',$udom)) {
9887: return 'refused';
9888: }
1.1017 raeburn 9889: }
9890: } else {
9891: return 'refused';
9892: }
1.1028 raeburn 9893: } elsif (!&allowed('ccc',$udom)) {
9894: return 'refused';
1.84 www 9895: }
1.1011 raeburn 9896: # --------------------------------------------------------------- Get Unique ID
9897: my $uname;
9898: if ($cnum =~ /^$match_courseid$/) {
9899: my $chome=&homeserver($cnum,$udom,'true');
9900: if (($chome eq '') || ($chome eq 'no_host')) {
9901: $uname = $cnum;
9902: } else {
1.1038 raeburn 9903: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 9904: }
9905: } else {
1.1038 raeburn 9906: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 9907: }
9908: return $uname if ($uname =~ /^error/);
9909: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 9910: if (!defined($course_server)) {
9911: if (defined(&domain($udom,'primary'))) {
9912: $course_server = &domain($udom,'primary');
9913: } else {
9914: $course_server = $env{'user.home'};
9915: }
9916: }
9917: my %host_servers =
9918: &Apache::lonnet::get_servers($udom,'library');
9919: unless ($host_servers{$course_server}) {
9920: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 9921: }
1.84 www 9922: # ------------------------------------------------------------- Make the course
9923: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 9924: $course_server);
1.84 www 9925: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 9926: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 9927: if (($uhome eq '') || ($uhome eq 'no_host')) {
9928: return 'error: no such course';
9929: }
1.271 www 9930: # ----------------------------------------------------------------- Course made
1.516 raeburn 9931: # log existence
1.1029 raeburn 9932: my $now = time;
1.918 raeburn 9933: my $newcourse = {
9934: $udom.'_'.$uname => {
1.921 raeburn 9935: description => $description,
9936: inst_code => $inst_code,
9937: owner => $course_owner,
9938: type => $crstype,
1.1029 raeburn 9939: creator => $env{'user.name'}.':'.
9940: $env{'user.domain'},
9941: created => $now,
9942: context => $context,
1.918 raeburn 9943: },
9944: };
1.921 raeburn 9945: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 9946: # set toplevel url
1.271 www 9947: my $topurl=$url;
9948: unless ($nonstandard) {
9949: # ------------------------------------------ For standard courses, make top url
9950: my $mapurl=&clutter($url);
1.278 www 9951: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 9952: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 9953: <map>
9954: <resource id="1" type="start"></resource>
9955: <resource id="2" src="$mapurl"></resource>
9956: <resource id="3" type="finish"></resource>
9957: <link index="1" from="1" to="2"></link>
9958: <link index="2" from="2" to="3"></link>
9959: </map>
9960: ENDINITMAP
9961: $topurl=&declutter(
1.638 albertel 9962: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 9963: );
9964: }
9965: # ----------------------------------------------------------- Write preferences
1.84 www 9966: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 9967: ('description' => $description,
9968: 'url' => $topurl,
9969: 'internal.creator' => $env{'user.name'}.':'.
9970: $env{'user.domain'},
9971: 'internal.created' => $now,
9972: 'internal.creationcontext' => $context)
9973: );
1.84 www 9974: return '/'.$udom.'/'.$uname;
9975: }
9976:
1.1011 raeburn 9977: # ------------------------------------------------------------------- Create ID
9978: sub generate_coursenum {
1.1038 raeburn 9979: my ($udom,$crstype) = @_;
1.1011 raeburn 9980: my $domdesc = &domain($udom);
9981: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 9982: my $first;
9983: if ($crstype eq 'Community') {
9984: $first = '0';
9985: } else {
9986: $first = int(1+rand(9));
9987: }
9988: my $uname=$first.
1.1011 raeburn 9989: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
9990: substr($$.time,0,5).unpack("H8",pack("I32",time)).
9991: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
9992: # ----------------------------------------------- Make sure that does not exist
9993: my $uhome=&homeserver($uname,$udom,'true');
9994: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 9995: if ($crstype eq 'Community') {
9996: $first = '0';
9997: } else {
9998: $first = int(1+rand(9));
9999: }
10000: $uname=$first.
1.1011 raeburn 10001: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
10002: substr($$.time,0,5).unpack("H8",pack("I32",time)).
10003: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
10004: $uhome=&homeserver($uname,$udom,'true');
10005: unless (($uhome eq '') || ($uhome eq 'no_host')) {
10006: return 'error: unable to generate unique course-ID';
10007: }
10008: }
10009: return $uname;
10010: }
10011:
1.813 albertel 10012: sub is_course {
1.1167 droeschl 10013: my ($cdom, $cnum) = scalar(@_) == 1 ?
10014: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
10015:
10016: return unless $cdom and $cnum;
10017:
10018: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
10019: '.');
10020:
1.1219 raeburn 10021: return unless(exists($courses{$cdom.'_'.$cnum}));
1.1167 droeschl 10022: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 10023: }
10024:
1.1015 raeburn 10025: sub store_userdata {
10026: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 10027: my $result;
1.1016 raeburn 10028: if ($datakey ne '') {
1.1013 raeburn 10029: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 10030: if ($udom eq '' || $uname eq '') {
10031: $udom = $env{'user.domain'};
10032: $uname = $env{'user.name'};
10033: }
10034: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 10035: if (($uhome eq '') || ($uhome eq 'no_host')) {
10036: $result = 'error: no_host';
10037: } else {
10038: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
10039: $storehash->{'host'} = $perlvar{'lonHostID'};
10040:
10041: my $namevalue='';
10042: foreach my $key (keys(%{$storehash})) {
10043: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
10044: }
10045: $namevalue=~s/\&$//;
1.1224 raeburn 10046: unless ($namespace eq 'courserequests') {
10047: $datakey = &escape($datakey);
10048: }
1.1105 raeburn 10049: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
10050: $namevalue,$uhome);
1.1013 raeburn 10051: }
10052: } else {
10053: $result = 'error: data to store was not a hash reference';
10054: }
10055: } else {
10056: $result= 'error: invalid requestkey';
10057: }
10058: return $result;
10059: }
10060:
1.21 www 10061: # ---------------------------------------------------------- Assign Custom Role
10062:
10063: sub assigncustomrole {
1.957 raeburn 10064: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10065: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 10066: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 10067: }
10068:
10069: # ----------------------------------------------------------------- Revoke Role
10070:
10071: sub revokerole {
1.957 raeburn 10072: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10073: my $now=time;
1.965 raeburn 10074: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 10075: }
10076:
10077: # ---------------------------------------------------------- Revoke Custom Role
10078:
10079: sub revokecustomrole {
1.957 raeburn 10080: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 10081: my $now=time;
1.357 www 10082: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 10083: $deleteflag,$selfenroll,$context);
1.17 www 10084: }
10085:
1.533 banghart 10086: # ------------------------------------------------------------ Disk usage
1.535 albertel 10087: sub diskusage {
1.955 raeburn 10088: my ($udom,$uname,$directorypath,$getpropath)=@_;
10089: $directorypath =~ s/\/$//;
10090: my $listing=&reply('du2:'.&escape($directorypath).':'
10091: .&escape($getpropath).':'.&escape($uname).':'
10092: .&escape($udom),homeserver($uname,$udom));
10093: if ($listing eq 'unknown_cmd') {
10094: if ($getpropath) {
10095: $directorypath = &propath($udom,$uname).'/'.$directorypath;
10096: }
10097: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
10098: }
1.514 albertel 10099: return $listing;
1.512 banghart 10100: }
10101:
1.566 banghart 10102: sub is_locked {
1.1096 raeburn 10103: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 10104: my @check;
10105: my $is_locked;
1.1093 raeburn 10106: push (@check,$file_name);
1.613 albertel 10107: my %locked = &get('file_permissions',\@check,
1.620 albertel 10108: $env{'user.domain'},$env{'user.name'});
1.615 albertel 10109: my ($tmp)=keys(%locked);
10110: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 10111:
1.566 banghart 10112: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 10113: $is_locked = 'false';
10114: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 10115: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 10116: $is_locked = 'true';
1.1096 raeburn 10117: if (ref($which) eq 'ARRAY') {
10118: push(@{$which},$entry);
10119: } else {
10120: last;
10121: }
1.745 raeburn 10122: }
10123: }
1.566 banghart 10124: } else {
10125: $is_locked = 'false';
10126: }
1.1093 raeburn 10127: return $is_locked;
1.566 banghart 10128: }
10129:
1.759 albertel 10130: sub declutter_portfile {
10131: my ($file) = @_;
1.833 albertel 10132: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 10133: return $file;
10134: }
10135:
1.559 banghart 10136: # ------------------------------------------------------------- Mark as Read Only
10137:
10138: sub mark_as_readonly {
10139: my ($domain,$user,$files,$what) = @_;
1.613 albertel 10140: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 10141: my ($tmp)=keys(%current_permissions);
10142: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 10143: foreach my $file (@{$files}) {
1.759 albertel 10144: $file = &declutter_portfile($file);
1.561 banghart 10145: push(@{$current_permissions{$file}},$what);
1.559 banghart 10146: }
1.613 albertel 10147: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 10148: return;
10149: }
10150:
1.572 banghart 10151: # ------------------------------------------------------------Save Selected Files
10152:
10153: sub save_selected_files {
10154: my ($user, $path, @files) = @_;
10155: my $filename = $user."savedfiles";
1.573 banghart 10156: my @other_files = &files_not_in_path($user, $path);
1.1359 raeburn 10157: open (OUT,'>',LONCAPA::tempdir().$filename);
1.573 banghart 10158: foreach my $file (@files) {
1.620 albertel 10159: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 10160: }
10161: foreach my $file (@other_files) {
1.574 banghart 10162: print (OUT $file."\n");
1.572 banghart 10163: }
1.574 banghart 10164: close (OUT);
1.572 banghart 10165: return 'ok';
10166: }
10167:
1.574 banghart 10168: sub clear_selected_files {
10169: my ($user) = @_;
10170: my $filename = $user."savedfiles";
1.1359 raeburn 10171: open (OUT,'>',LONCAPA::tempdir().$filename);
1.574 banghart 10172: print (OUT undef);
10173: close (OUT);
10174: return ("ok");
10175: }
10176:
1.572 banghart 10177: sub files_in_path {
10178: my ($user, $path) = @_;
10179: my $filename = $user."savedfiles";
10180: my %return_files;
1.1359 raeburn 10181: open (IN,'<',LONCAPA::tempdir().$filename);
1.573 banghart 10182: while (my $line_in = <IN>) {
1.574 banghart 10183: chomp ($line_in);
10184: my @paths_and_file = split (m!/!, $line_in);
10185: my $file_part = pop (@paths_and_file);
10186: my $path_part = join ('/', @paths_and_file);
1.573 banghart 10187: $path_part.='/';
10188: my $path_and_file = $path_part.$file_part;
10189: if ($path_part eq $path) {
10190: $return_files{$file_part}= 'selected';
10191: }
10192: }
1.574 banghart 10193: close (IN);
10194: return (\%return_files);
1.572 banghart 10195: }
10196:
10197: # called in portfolio select mode, to show files selected NOT in current directory
10198: sub files_not_in_path {
10199: my ($user, $path) = @_;
10200: my $filename = $user."savedfiles";
10201: my @return_files;
10202: my $path_part;
1.1359 raeburn 10203: open(IN, '<',LONCAPA::tempdir().$filename);
1.800 albertel 10204: while (my $line = <IN>) {
1.572 banghart 10205: #ok, I know it's clunky, but I want it to work
1.800 albertel 10206: my @paths_and_file = split(m|/|, $line);
10207: my $file_part = pop(@paths_and_file);
10208: chomp($file_part);
10209: my $path_part = join('/', @paths_and_file);
1.572 banghart 10210: $path_part .= '/';
10211: my $path_and_file = $path_part.$file_part;
10212: if ($path_part ne $path) {
1.800 albertel 10213: push(@return_files, ($path_and_file));
1.572 banghart 10214: }
10215: }
1.800 albertel 10216: close(OUT);
1.574 banghart 10217: return (@return_files);
1.572 banghart 10218: }
10219:
1.1273 raeburn 10220: #------------------------------Submitted/Handedback Portfolio Files Versioning
10221:
10222: sub portfiles_versioning {
10223: my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
10224: my $portfolio_root = '/userfiles/portfolio';
10225: return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
10226: foreach my $file (@{$portfiles}) {
10227: &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
10228: my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
10229: my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
10230: my $getpropath = 1;
10231: my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
10232: $stu_name,$getpropath);
10233: my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
10234: my $new_answer =
10235: &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
10236: if ($new_answer ne 'problem getting file') {
10237: push(@{$versioned_portfiles}, $directory.$new_answer);
10238: &mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
10239: [$symb,$env{'request.course.id'},'graded']);
10240: }
10241: }
10242: }
10243:
10244: sub get_next_version {
10245: my ($answer_name, $answer_ext, $dir_list) = @_;
10246: my $version;
10247: if (ref($dir_list) eq 'ARRAY') {
10248: foreach my $row (@{$dir_list}) {
10249: my ($file) = split(/\&/,$row,2);
10250: my ($file_name,$file_version,$file_ext) =
10251: &file_name_version_ext($file);
10252: if (($file_name eq $answer_name) &&
10253: ($file_ext eq $answer_ext)) {
10254: # gets here if filename and extension match,
10255: # regardless of version
10256: if ($file_version ne '') {
10257: # a versioned file is found so save it for later
10258: if ($file_version > $version) {
10259: $version = $file_version;
10260: }
10261: }
10262: }
10263: }
10264: }
10265: $version ++;
10266: return($version);
10267: }
10268:
10269: sub version_selected_portfile {
10270: my ($domain,$stu_name,$directory,$file_name,$version) = @_;
10271: my ($answer_name,$answer_ver,$answer_ext) =
10272: &file_name_version_ext($file_name);
10273: my $new_answer;
10274: $env{'form.copy'} =
10275: &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
10276: if($env{'form.copy'} eq '-1') {
10277: $new_answer = 'problem getting file';
10278: } else {
10279: $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
10280: my $copy_result =
10281: &finishuserfileupload($stu_name,$domain,'copy',
10282: '/portfolio'.$directory.$new_answer);
10283: }
10284: undef($env{'form.copy'});
10285: return ($new_answer);
10286: }
10287:
10288: sub file_name_version_ext {
10289: my ($file)=@_;
10290: my @file_parts = split(/\./, $file);
10291: my ($name,$version,$ext);
10292: if (@file_parts > 1) {
10293: $ext=pop(@file_parts);
10294: if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
10295: $version=pop(@file_parts);
10296: }
10297: $name=join('.',@file_parts);
10298: } else {
10299: $name=join('.',@file_parts);
10300: }
10301: return($name,$version,$ext);
10302: }
10303:
1.745 raeburn 10304: #----------------------------------------------Get portfolio file permissions
1.629 banghart 10305:
1.745 raeburn 10306: sub get_portfile_permissions {
10307: my ($domain,$user) = @_;
1.613 albertel 10308: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 10309: my ($tmp)=keys(%current_permissions);
10310: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 10311: return \%current_permissions;
10312: }
10313:
10314: #---------------------------------------------Get portfolio file access controls
10315:
1.749 raeburn 10316: sub get_access_controls {
1.745 raeburn 10317: my ($current_permissions,$group,$file) = @_;
1.769 albertel 10318: my %access;
10319: my $real_file = $file;
10320: $file =~ s/\.meta$//;
1.745 raeburn 10321: if (defined($file)) {
1.749 raeburn 10322: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
10323: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 10324: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 10325: }
10326: }
1.745 raeburn 10327: } else {
1.749 raeburn 10328: foreach my $key (keys(%{$current_permissions})) {
10329: if ($key =~ /\0accesscontrol$/) {
10330: if (defined($group)) {
10331: if ($key !~ m-^\Q$group\E/-) {
10332: next;
10333: }
10334: }
10335: my ($fullpath) = split(/\0/,$key);
10336: if (ref($$current_permissions{$key}) eq 'HASH') {
10337: foreach my $control (keys(%{$$current_permissions{$key}})) {
10338: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
10339: }
10340: }
10341: }
10342: }
10343: }
10344: return %access;
10345: }
10346:
10347: sub modify_access_controls {
10348: my ($file_name,$changes,$domain,$user)=@_;
10349: my ($outcome,$deloutcome);
10350: my %store_permissions;
10351: my %new_values;
10352: my %new_control;
10353: my %translation;
10354: my @deletions = ();
10355: my $now = time;
10356: if (exists($$changes{'activate'})) {
10357: if (ref($$changes{'activate'}) eq 'HASH') {
10358: my @newitems = sort(keys(%{$$changes{'activate'}}));
10359: my $numnew = scalar(@newitems);
10360: for (my $i=0; $i<$numnew; $i++) {
10361: my $newkey = $newitems[$i];
10362: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 10363: if ($newkey =~ /^\d+:/) {
10364: $newkey =~ s/^(\d+)/$newid/;
10365: $translation{$1} = $newid;
10366: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
10367: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
10368: $translation{$1} = $newid;
10369: }
1.749 raeburn 10370: $new_values{$file_name."\0".$newkey} =
10371: $$changes{'activate'}{$newitems[$i]};
10372: $new_control{$newkey} = $now;
10373: }
10374: }
10375: }
10376: my %todelete;
10377: my %changed_items;
10378: foreach my $action ('delete','update') {
10379: if (exists($$changes{$action})) {
10380: if (ref($$changes{$action}) eq 'HASH') {
10381: foreach my $key (keys(%{$$changes{$action}})) {
10382: my ($itemnum) = ($key =~ /^([^:]+):/);
10383: if ($action eq 'delete') {
10384: $todelete{$itemnum} = 1;
10385: } else {
10386: $changed_items{$itemnum} = $key;
10387: }
10388: }
1.745 raeburn 10389: }
10390: }
1.749 raeburn 10391: }
10392: # get lock on access controls for file.
10393: my $lockhash = {
10394: $file_name."\0".'locked_access_records' => $env{'user.name'}.
10395: ':'.$env{'user.domain'},
10396: };
10397: my $tries = 0;
10398: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10399:
1.1288 damieng 10400: while (($gotlock ne 'ok') && $tries < 10) {
1.749 raeburn 10401: $tries ++;
1.1289 damieng 10402: sleep(0.1);
1.749 raeburn 10403: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10404: }
10405: if ($gotlock eq 'ok') {
10406: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
10407: my ($tmp)=keys(%curr_permissions);
10408: if ($tmp=~/^error:/) { undef(%curr_permissions); }
10409: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
10410: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
10411: if (ref($curr_controls) eq 'HASH') {
10412: foreach my $control_item (keys(%{$curr_controls})) {
10413: my ($itemnum) = ($control_item =~ /^([^:]+):/);
10414: if (defined($todelete{$itemnum})) {
10415: push(@deletions,$file_name."\0".$control_item);
10416: } else {
10417: if (defined($changed_items{$itemnum})) {
10418: $new_control{$changed_items{$itemnum}} = $now;
10419: push(@deletions,$file_name."\0".$control_item);
10420: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
10421: } else {
10422: $new_control{$control_item} = $$curr_controls{$control_item};
10423: }
10424: }
1.745 raeburn 10425: }
10426: }
10427: }
1.970 raeburn 10428: my ($group);
10429: if (&is_course($domain,$user)) {
10430: ($group,my $file) = split(/\//,$file_name,2);
10431: }
1.749 raeburn 10432: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
10433: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
10434: $outcome = &put('file_permissions',\%new_values,$domain,$user);
10435: # remove lock
10436: my @del_lock = ($file_name."\0".'locked_access_records');
10437: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 10438: my $sqlresult =
1.970 raeburn 10439: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 10440: $group);
1.749 raeburn 10441: } else {
10442: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 10443: }
1.749 raeburn 10444: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 10445: }
10446:
1.827 raeburn 10447: sub make_public_indefinitely {
1.1271 raeburn 10448: my (@requrl) = @_;
10449: return &automated_portfile_access('public',\@requrl);
10450: }
10451:
10452: sub automated_portfile_access {
10453: my ($accesstype,$addsref,$delsref,$info) = @_;
1.1273 raeburn 10454: unless (($accesstype eq 'public') || ($accesstype eq 'ip')) {
10455: return 'invalid';
10456: }
1.1271 raeburn 10457: my %urls;
10458: if (ref($addsref) eq 'ARRAY') {
10459: foreach my $requrl (@{$addsref}) {
10460: if (&is_portfolio_url($requrl)) {
10461: unless (exists($urls{$requrl})) {
10462: $urls{$requrl} = 'add';
10463: }
10464: }
10465: }
10466: }
10467: if (ref($delsref) eq 'ARRAY') {
10468: foreach my $requrl (@{$delsref}) {
10469: if (&is_portfolio_url($requrl)) {
10470: unless (exists($urls{$requrl})) {
10471: $urls{$requrl} = 'delete';
10472: }
10473: }
10474: }
10475: }
10476: unless (keys(%urls)) {
10477: return 'invalid';
10478: }
10479: my $ip;
10480: if ($accesstype eq 'ip') {
10481: if (ref($info) eq 'HASH') {
10482: if ($info->{'ip'} ne '') {
10483: $ip = $info->{'ip'};
10484: }
10485: }
10486: if ($ip eq '') {
10487: return 'invalid';
10488: }
10489: }
10490: my $errors;
1.827 raeburn 10491: my $now = time;
1.1271 raeburn 10492: my %current_perms;
10493: foreach my $requrl (sort(keys(%urls))) {
10494: my $action;
10495: if ($urls{$requrl} eq 'add') {
10496: $action = 'activate';
10497: } else {
10498: $action = 'none';
10499: }
10500: my $aclnum = 0;
1.827 raeburn 10501: my (undef,$udom,$unum,$file_name,$group) =
10502: &parse_portfolio_url($requrl);
1.1271 raeburn 10503: unless (exists($current_perms{$unum.':'.$udom})) {
10504: $current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
10505: }
10506: my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
1.827 raeburn 10507: $group,$file_name);
10508: foreach my $key (keys(%{$access_controls{$file_name}})) {
10509: my ($num,$scope,$end,$start) =
10510: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
1.1271 raeburn 10511: if ($scope eq $accesstype) {
10512: if (($start <= $now) && ($end == 0)) {
10513: if ($accesstype eq 'ip') {
10514: if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
10515: if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
10516: if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
10517: if ($urls{$requrl} eq 'add') {
10518: $action = 'none';
10519: last;
10520: } else {
10521: $action = 'delete';
10522: $aclnum = $num;
10523: last;
10524: }
10525: }
10526: }
10527: }
10528: } elsif ($accesstype eq 'public') {
10529: if ($urls{$requrl} eq 'add') {
10530: $action = 'none';
10531: last;
10532: } else {
10533: $action = 'delete';
10534: $aclnum = $num;
10535: last;
10536: }
10537: }
10538: } elsif ($accesstype eq 'public') {
1.827 raeburn 10539: $action = 'update';
10540: $aclnum = $num;
1.1271 raeburn 10541: last;
1.827 raeburn 10542: }
10543: }
10544: }
10545: if ($action eq 'none') {
1.1271 raeburn 10546: next;
1.827 raeburn 10547: } else {
10548: my %changes;
10549: my $newend = 0;
10550: my $newstart = $now;
1.1271 raeburn 10551: my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
1.827 raeburn 10552: $changes{$action}{$newkey} = {
1.1271 raeburn 10553: type => $accesstype,
1.827 raeburn 10554: time => {
10555: start => $newstart,
10556: end => $newend,
10557: },
10558: };
1.1271 raeburn 10559: if ($accesstype eq 'ip') {
10560: $changes{$action}{$newkey}{'ip'} = [$ip];
10561: }
1.827 raeburn 10562: my ($outcome,$deloutcome,$new_values,$translation) =
10563: &modify_access_controls($file_name,\%changes,$udom,$unum);
1.1271 raeburn 10564: unless ($outcome eq 'ok') {
10565: $errors .= $outcome.' ';
10566: }
1.827 raeburn 10567: }
1.1271 raeburn 10568: }
10569: if ($errors) {
10570: $errors =~ s/\s$//;
10571: return $errors;
1.827 raeburn 10572: } else {
1.1271 raeburn 10573: return 'ok';
1.827 raeburn 10574: }
10575: }
10576:
1.745 raeburn 10577: #------------------------------------------------------Get Marked as Read Only
10578:
10579: sub get_marked_as_readonly {
10580: my ($domain,$user,$what,$group) = @_;
10581: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 10582: my @readonly_files;
1.629 banghart 10583: my $cmp1=$what;
10584: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 10585: while (my ($file_name,$value) = each(%{$current_permissions})) {
10586: if (defined($group)) {
10587: if ($file_name !~ m-^\Q$group\E/-) {
10588: next;
10589: }
10590: }
1.561 banghart 10591: if (ref($value) eq "ARRAY"){
10592: foreach my $stored_what (@{$value}) {
1.629 banghart 10593: my $cmp2=$stored_what;
1.759 albertel 10594: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 10595: $cmp2=join('',@{$stored_what});
1.745 raeburn 10596: }
1.629 banghart 10597: if ($cmp1 eq $cmp2) {
1.561 banghart 10598: push(@readonly_files, $file_name);
1.745 raeburn 10599: last;
1.563 banghart 10600: } elsif (!defined($what)) {
10601: push(@readonly_files, $file_name);
1.745 raeburn 10602: last;
1.561 banghart 10603: }
10604: }
1.745 raeburn 10605: }
1.561 banghart 10606: }
10607: return @readonly_files;
10608: }
1.577 banghart 10609: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 10610:
1.577 banghart 10611: sub get_marked_as_readonly_hash {
1.745 raeburn 10612: my ($current_permissions,$group,$what) = @_;
1.577 banghart 10613: my %readonly_files;
1.745 raeburn 10614: while (my ($file_name,$value) = each(%{$current_permissions})) {
10615: if (defined($group)) {
10616: if ($file_name !~ m-^\Q$group\E/-) {
10617: next;
10618: }
10619: }
1.577 banghart 10620: if (ref($value) eq "ARRAY"){
10621: foreach my $stored_what (@{$value}) {
1.745 raeburn 10622: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 10623: foreach my $lock_descriptor(@{$stored_what}) {
10624: if ($lock_descriptor eq 'graded') {
10625: $readonly_files{$file_name} = 'graded';
10626: } elsif ($lock_descriptor eq 'handback') {
10627: $readonly_files{$file_name} = 'handback';
10628: } else {
10629: if (!exists($readonly_files{$file_name})) {
10630: $readonly_files{$file_name} = 'locked';
10631: }
10632: }
1.745 raeburn 10633: }
1.750 banghart 10634: }
1.577 banghart 10635: }
10636: }
10637: }
10638: return %readonly_files;
10639: }
1.559 banghart 10640: # ------------------------------------------------------------ Unmark as Read Only
10641:
10642: sub unmark_as_readonly {
1.629 banghart 10643: # unmarks $file_name (if $file_name is defined), or all files locked by $what
10644: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 10645: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 10646: $file_name = &declutter_portfile($file_name);
1.634 albertel 10647: my $symb_crs = $what;
10648: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 10649: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 10650: my ($tmp)=keys(%current_permissions);
10651: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 10652: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 10653: foreach my $file (@readonly_files) {
1.759 albertel 10654: my $clean_file = &declutter_portfile($file);
10655: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 10656: my $current_locks = $current_permissions{$file};
1.563 banghart 10657: my @new_locks;
10658: my @del_keys;
10659: if (ref($current_locks) eq "ARRAY"){
10660: foreach my $locker (@{$current_locks}) {
1.632 albertel 10661: my $compare=$locker;
1.749 raeburn 10662: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 10663: $compare=join('',@{$locker});
1.746 raeburn 10664: if ($compare ne $symb_crs) {
10665: push(@new_locks, $locker);
10666: }
1.563 banghart 10667: }
10668: }
1.650 albertel 10669: if (scalar(@new_locks) > 0) {
1.563 banghart 10670: $current_permissions{$file} = \@new_locks;
10671: } else {
10672: push(@del_keys, $file);
1.613 albertel 10673: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 10674: delete($current_permissions{$file});
1.563 banghart 10675: }
10676: }
1.561 banghart 10677: }
1.613 albertel 10678: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 10679: return;
10680: }
1.512 banghart 10681:
1.17 www 10682: # ------------------------------------------------------------ Directory lister
10683:
10684: sub dirlist {
1.955 raeburn 10685: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 10686: $uri=~s/^\///;
10687: $uri=~s/\/$//;
1.253 stredwic 10688: my ($udom, $uname);
1.955 raeburn 10689: if ($getuserdir) {
1.253 stredwic 10690: $udom = $userdomain;
10691: $uname = $username;
1.955 raeburn 10692: } else {
10693: (undef,$udom,$uname)=split(/\//,$uri);
10694: if(defined($userdomain)) {
10695: $udom = $userdomain;
10696: }
10697: if(defined($username)) {
10698: $uname = $username;
10699: }
1.253 stredwic 10700: }
1.955 raeburn 10701: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 10702:
1.955 raeburn 10703: $dirRoot = $perlvar{'lonDocRoot'};
10704: if (defined($getpropath)) {
10705: $dirRoot = &propath($udom,$uname);
1.253 stredwic 10706: $dirRoot =~ s/\/$//;
1.955 raeburn 10707: } elsif (defined($getuserdir)) {
10708: my $subdir=$uname.'__';
10709: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
10710: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
10711: ."/$udom/$subdir/$uname";
10712: } elsif (defined($alternateRoot)) {
10713: $dirRoot = $alternateRoot;
1.751 banghart 10714: }
1.253 stredwic 10715:
10716: if($udom) {
10717: if($uname) {
1.1135 raeburn 10718: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 10719: if ($uhome eq 'no_host') {
10720: return ([],'no_host');
10721: }
1.955 raeburn 10722: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 10723: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 10724: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 10725: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10726: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 10727: } else {
10728: @listing_results = map { &unescape($_); } split(/:/,$listing);
10729: }
1.605 matthew 10730: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10731: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 10732: @listing_results = split(/:/,$listing);
10733: } else {
10734: @listing_results = map { &unescape($_); } split(/:/,$listing);
10735: }
1.1135 raeburn 10736: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 10737: ($listing eq 'rejected') || ($listing eq 'refused') ||
10738: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10739: return ([],$listing);
10740: } else {
10741: return (\@listing_results);
1.1135 raeburn 10742: }
1.955 raeburn 10743: } elsif(!$alternateRoot) {
1.1136 raeburn 10744: my (%allusers,%listerror);
1.841 albertel 10745: my %servers = &get_servers($udom,'library');
1.955 raeburn 10746: foreach my $tryserver (keys(%servers)) {
10747: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
10748: &escape($udom),$tryserver);
10749: if ($listing eq 'unknown_cmd') {
10750: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
10751: $udom, $tryserver);
10752: } else {
10753: @listing_results = map { &unescape($_); } split(/:/,$listing);
10754: }
1.841 albertel 10755: if ($listing eq 'unknown_cmd') {
10756: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
10757: $udom, $tryserver);
10758: @listing_results = split(/:/,$listing);
10759: } else {
10760: @listing_results =
10761: map { &unescape($_); } split(/:/,$listing);
10762: }
1.1136 raeburn 10763: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
10764: ($listing eq 'rejected') || ($listing eq 'refused') ||
10765: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10766: $listerror{$tryserver} = $listing;
10767: } else {
1.841 albertel 10768: foreach my $line (@listing_results) {
10769: my ($entry) = split(/&/,$line,2);
10770: $allusers{$entry} = 1;
10771: }
10772: }
1.253 stredwic 10773: }
1.1136 raeburn 10774: my @alluserslist=();
1.800 albertel 10775: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 10776: push(@alluserslist,$user.'&user');
1.253 stredwic 10777: }
1.1318 droeschl 10778:
10779: if (!%listerror) {
10780: # no errors
10781: return (\@alluserslist);
10782: } elsif (scalar(keys(%servers)) == 1) {
10783: # one library server, one error
10784: my ($key) = keys(%listerror);
10785: return (\@alluserslist, $listerror{$key});
10786: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
10787: # con_lost indicates that we might miss data from at least one
10788: # library server
10789: return (\@alluserslist, 'con_lost');
10790: } else {
10791: # multiple library servers and no con_lost -> data should be
10792: # complete.
10793: return (\@alluserslist);
10794: }
10795:
1.253 stredwic 10796: } else {
1.1136 raeburn 10797: return ([],'missing username');
1.253 stredwic 10798: }
1.955 raeburn 10799: } elsif(!defined($getpropath)) {
1.1136 raeburn 10800: my $path = $perlvar{'lonDocRoot'}.'/res/';
10801: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
10802: return (\@all_domains);
1.955 raeburn 10803: } else {
1.1136 raeburn 10804: return ([],'missing domain');
1.275 stredwic 10805: }
10806: }
10807:
10808: # --------------------------------------------- GetFileTimestamp
10809: # This function utilizes dirlist and returns the date stamp for
10810: # when it was last modified. It will also return an error of -1
10811: # if an error occurs
10812:
10813: sub GetFileTimestamp {
1.955 raeburn 10814: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 10815: $studentDomain = &LONCAPA::clean_domain($studentDomain);
10816: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 10817: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
10818: undef,$getuserdir);
10819: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10820: return -1;
10821: }
10822: if (ref($fileref) eq 'ARRAY') {
10823: my @stats = split('&',$fileref->[0]);
1.375 matthew 10824: # @stats contains first the filename, then the stat output
10825: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 10826: } else {
10827: return -1;
1.253 stredwic 10828: }
1.26 www 10829: }
10830:
1.712 albertel 10831: sub stat_file {
10832: my ($uri) = @_;
1.787 albertel 10833: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 10834:
1.955 raeburn 10835: my ($udom,$uname,$file);
1.712 albertel 10836: if ($uri =~ m-^/(uploaded|editupload)/-) {
10837: ($udom,$uname,$file) =
1.811 albertel 10838: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 10839: $file = 'userfiles/'.$file;
10840: }
10841: if ($uri =~ m-^/res/-) {
10842: ($udom,$uname) =
1.807 albertel 10843: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 10844: $file = $uri;
10845: }
10846:
10847: if (!$udom || !$uname || !$file) {
10848: # unable to handle the uri
10849: return ();
10850: }
1.956 raeburn 10851: my $getpropath;
10852: if ($file =~ /^userfiles\//) {
10853: $getpropath = 1;
10854: }
1.1136 raeburn 10855: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
10856: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10857: return ();
10858: } else {
10859: if (ref($listref) eq 'ARRAY') {
10860: my @stats = split('&',$listref->[0]);
10861: shift(@stats); #filename is first
10862: return @stats;
10863: }
1.712 albertel 10864: }
10865: return ();
10866: }
10867:
1.1313 raeburn 10868: # --------------------------------------------------------- recursedirs
10869: # Recursive function to traverse either a specific user's Authoring Space
10870: # or corresponding Published Resource Space, and populate the hash ref:
10871: # $dirhashref with URLs of all directories, and if $filehashref hash
10872: # ref arg is provided, the URLs of any files, excluding versioned, .meta,
10873: # or .rights files in resource space, and .meta, .save, .log, and .bak
10874: # files in Authoring Space.
10875: #
10876: # Inputs:
10877: #
10878: # $is_home - true if current server is home server for user's space
10879: # $context - either: priv, or res respectively for Authoring or Resource Space.
10880: # $docroot - Document root (i.e., /home/httpd/html
10881: # $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname
10882: # $relpath - Current path (relative to top level).
10883: # $dirhashref - reference to hash to populate with URLs of directories (Required)
10884: # $filehashref - reference to hash to populate with URLs of files (Optional)
10885: #
10886: # Returns: nothing
10887: #
10888: # Side Effects: populates $dirhashref, and $filehashref (if provided).
10889: #
10890: # Currently used by interface/londocs.pm to create linked select boxes for
10891: # directory and filename to import a Course "Author" resource into a course, and
10892: # also to create linked select boxes for Authoring Space and Directory to choose
10893: # save location for creation of a new "standard" problem from the Course Editor.
10894: #
10895:
10896: sub recursedirs {
10897: my ($is_home,$context,$docroot,$toppath,$relpath,$dirhashref,$filehashref) = @_;
10898: return unless (ref($dirhashref) eq 'HASH');
10899: my $currpath = $docroot.$toppath;
10900: if ($relpath) {
10901: $currpath .= "/$relpath";
10902: }
10903: my $savefile;
10904: if (ref($filehashref)) {
10905: $savefile = 1;
10906: }
10907: if ($is_home) {
10908: if (opendir(my $dirh,$currpath)) {
10909: foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) {
10910: next if ($item eq '');
10911: if (-d "$currpath/$item") {
10912: my $newpath;
10913: if ($relpath) {
10914: $newpath = "$relpath/$item";
10915: } else {
10916: $newpath = $item;
10917: }
10918: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
10919: &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
10920: } elsif ($savefile) {
10921: if ($context eq 'priv') {
10922: unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) {
10923: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
10924: }
10925: } else {
10926: unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/) || ($item =~ /\.rights$/)) {
10927: $filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
10928: }
10929: }
10930: }
10931: }
10932: closedir($dirh);
10933: }
10934: } else {
10935: my ($dirlistref,$listerror) =
10936: &dirlist($toppath.$relpath);
10937: my @dir_lines;
10938: my $dirptr=16384;
10939: if (ref($dirlistref) eq 'ARRAY') {
10940: foreach my $dir_line (sort
10941: {
10942: my ($afile)=split('&',$a,2);
10943: my ($bfile)=split('&',$b,2);
10944: return (lc($afile) cmp lc($bfile));
10945: } (@{$dirlistref})) {
10946: my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) =
10947: split(/\&/,$dir_line,16);
10948: $item =~ s/\s+$//;
10949: next if (($item =~ /^\.\.?$/) || ($obs));
10950: if ($dirptr&$testdir) {
10951: my $newpath;
10952: if ($relpath) {
10953: $newpath = "$relpath/$item";
10954: } else {
10955: $relpath = '/';
10956: $newpath = $item;
10957: }
10958: $dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
10959: &recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
10960: } elsif ($savefile) {
10961: if ($context eq 'priv') {
10962: unless ($item =~ /\.(meta|save|log|bak|DS_Store)$/) {
10963: $filehashref->{$relpath}{$item} = 1;
10964: }
10965: } else {
10966: unless (($item =~ /\.meta$/) || ($item =~ /\.\d+\.\w+$/)) {
10967: $filehashref->{$relpath}{$item} = 1;
10968: }
10969: }
10970: }
10971: }
10972: }
10973: }
10974: return;
10975: }
10976:
1.26 www 10977: # -------------------------------------------------------- Value of a Condition
10978:
1.713 albertel 10979: # gets the value of a specific preevaluated condition
10980: # stored in the string $env{user.state.<cid>}
10981: # or looks up a condition reference in the bighash and if if hasn't
10982: # already been evaluated recurses into docondval to get the value of
10983: # the condition, then memoizing it to
10984: # $env{user.state.<cid>.<condition>}
1.40 www 10985: sub directcondval {
10986: my $number=shift;
1.620 albertel 10987: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 10988: &Apache::lonuserstate::evalstate();
10989: }
1.713 albertel 10990: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
10991: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
10992: } elsif ($number =~ /^_/) {
10993: my $sub_condition;
10994: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10995: &GDBM_READER(),0640)) {
10996: $sub_condition=$bighash{'conditions'.$number};
10997: untie(%bighash);
10998: }
10999: my $value = &docondval($sub_condition);
1.949 raeburn 11000: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 11001: return $value;
11002: }
1.620 albertel 11003: if ($env{'user.state.'.$env{'request.course.id'}}) {
11004: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 11005: } else {
11006: return 2;
11007: }
11008: }
11009:
1.713 albertel 11010: # get the collection of conditions for this resource
1.26 www 11011: sub condval {
11012: my $condidx=shift;
1.54 www 11013: my $allpathcond='';
1.713 albertel 11014: foreach my $cond (split(/\|/,$condidx)) {
11015: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
11016: $allpathcond.=
11017: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
11018: }
1.191 harris41 11019: }
1.54 www 11020: $allpathcond=~s/\|$//;
1.713 albertel 11021: return &docondval($allpathcond);
11022: }
11023:
11024: #evaluates an expression of conditions
11025: sub docondval {
11026: my ($allpathcond) = @_;
11027: my $result=0;
11028: if ($env{'request.course.id'}
11029: && defined($allpathcond)) {
11030: my $operand='|';
11031: my @stack;
11032: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
11033: if ($chunk eq '(') {
11034: push @stack,($operand,$result);
11035: } elsif ($chunk eq ')') {
11036: my $before=pop @stack;
11037: if (pop @stack eq '&') {
11038: $result=$result>$before?$before:$result;
11039: } else {
11040: $result=$result>$before?$result:$before;
11041: }
11042: } elsif (($chunk eq '&') || ($chunk eq '|')) {
11043: $operand=$chunk;
11044: } else {
11045: my $new=directcondval($chunk);
11046: if ($operand eq '&') {
11047: $result=$result>$new?$new:$result;
11048: } else {
11049: $result=$result>$new?$result:$new;
11050: }
11051: }
11052: }
1.26 www 11053: }
11054: return $result;
1.421 albertel 11055: }
11056:
11057: # ---------------------------------------------------- Devalidate courseresdata
11058:
11059: sub devalidatecourseresdata {
11060: my ($coursenum,$coursedomain)=@_;
11061: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 11062: &devalidate_cache_new('courseres',$hashid);
1.28 www 11063: }
11064:
1.763 www 11065:
1.200 www 11066: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 11067: #
11068: # Parameters:
11069: # $coursenum - Number of the course.
11070: # $coursedomain - Domain at which the course was created.
11071: # Returns:
11072: # A hash of the course parameters along (I think) with timestamps
11073: # and version info.
1.877 foxr 11074:
1.624 albertel 11075: sub get_courseresdata {
11076: my ($coursenum,$coursedomain)=@_;
1.200 www 11077: my $coursehom=&homeserver($coursenum,$coursedomain);
11078: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 11079: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 11080: my %dumpreply;
1.417 albertel 11081: unless (defined($cached)) {
1.624 albertel 11082: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 11083: $result=\%dumpreply;
1.251 albertel 11084: my ($tmp) = keys(%dumpreply);
11085: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 11086: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 11087: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
11088: return $tmp;
1.416 albertel 11089: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 11090: $result=undef;
1.599 albertel 11091: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 11092: }
11093: }
1.624 albertel 11094: return $result;
11095: }
11096:
1.633 albertel 11097: sub devalidateuserresdata {
11098: my ($uname,$udom)=@_;
11099: my $hashid="$udom:$uname";
11100: &devalidate_cache_new('userres',$hashid);
11101: }
11102:
1.624 albertel 11103: sub get_userresdata {
11104: my ($uname,$udom)=@_;
11105: #most student don\'t have any data set, check if there is some data
11106: if (&EXT_cache_status($udom,$uname)) { return undef; }
11107:
11108: my $hashid="$udom:$uname";
11109: my ($result,$cached)=&is_cached_new('userres',$hashid);
11110: if (!defined($cached)) {
11111: my %resourcedata=&dump('resourcedata',$udom,$uname);
11112: $result=\%resourcedata;
11113: &do_cache_new('userres',$hashid,$result,600);
11114: }
11115: my ($tmp)=keys(%$result);
11116: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
11117: return $result;
11118: }
11119: #error 2 occurs when the .db doesn't exist
11120: if ($tmp!~/error: 2 /) {
1.1294 raeburn 11121: if ((!defined($cached)) || ($tmp ne 'con_lost')) {
11122: &logthis("<font color=\"blue\">WARNING:".
11123: " Trying to get resource data for ".
11124: $uname." at ".$udom.": ".
11125: $tmp."</font>");
11126: }
1.624 albertel 11127: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 11128: #&EXT_cache_set($udom,$uname);
11129: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 11130: undef($tmp); # not really an error so don't send it back
1.624 albertel 11131: }
11132: return $tmp;
11133: }
1.879 foxr 11134: #----------------------------------------------- resdata - return resource data
11135: # Purpose:
11136: # Return resource data for either users or for a course.
11137: # Parameters:
11138: # $name - Course/user name.
11139: # $domain - Name of the domain the user/course is registered on.
1.1311 raeburn 11140: # $type - Type of thing $name is (must be 'course' or 'user')
1.1301 raeburn 11141: # $mapp - decluttered URL of enclosing map
11142: # $recursed - Ref to scalar -- set to 1, if nested maps have been recursed.
11143: # $recurseup - Ref to array of map URLs, starting with map containing
11144: # $mapp up through hierarchy of nested maps to top level map.
11145: # $courseid - CourseID (first part of param identifier).
11146: # $modifier - Middle part of param identifier.
11147: # $what - Last part of param identifier.
1.879 foxr 11148: # @which - Array of names of resources desired.
11149: # Returns:
11150: # The value of the first reasource in @which that is found in the
11151: # resource hash.
11152: # Exceptional Conditions:
11153: # If the $type passed in is not valid (not the string 'course' or
11154: # 'user', an undefined reference is returned.
11155: # If none of the resources are found, an undef is returned
1.624 albertel 11156: sub resdata {
1.1301 raeburn 11157: my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid,
11158: $modifier,$what,@which)=@_;
1.624 albertel 11159: my $result;
11160: if ($type eq 'course') {
11161: $result=&get_courseresdata($name,$domain);
11162: } elsif ($type eq 'user') {
11163: $result=&get_userresdata($name,$domain);
11164: }
11165: if (!ref($result)) { return $result; }
1.251 albertel 11166: foreach my $item (@which) {
1.1301 raeburn 11167: if ($item->[1] eq 'course') {
11168: if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) {
11169: unless ($$recursed) {
1.1302 raeburn 11170: @{$recurseup} = &get_map_hierarchy($mapp,$courseid);
1.1301 raeburn 11171: $$recursed = 1;
11172: }
11173: foreach my $item (@${recurseup}) {
11174: my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what;
11175: last if (defined($result->{$norecursechk}));
11176: my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what;
11177: if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; }
11178: }
11179: }
11180: }
11181: if (defined($result->{$item->[0]})) {
1.927 albertel 11182: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 11183: }
1.250 albertel 11184: }
1.291 albertel 11185: return undef;
1.200 www 11186: }
11187:
1.1360 raeburn 11188: sub get_domain_lti {
11189: my ($cdom,$context) = @_;
11190: my ($name,%lti);
11191: if ($context eq 'consumer') {
11192: $name = 'ltitools';
11193: } elsif ($context eq 'provider') {
11194: $name = 'lti';
11195: } else {
11196: return %lti;
11197: }
11198: my ($result,$cached)=&is_cached_new($name,$cdom);
1.1298 raeburn 11199: if (defined($cached)) {
11200: if (ref($result) eq 'HASH') {
1.1360 raeburn 11201: %lti = %{$result};
1.1298 raeburn 11202: }
11203: } else {
1.1360 raeburn 11204: my %domconfig = &get_dom('configuration',[$name],$cdom);
11205: if (ref($domconfig{$name}) eq 'HASH') {
11206: %lti = %{$domconfig{$name}};
11207: my %encdomconfig = &get_dom('encconfig',[$name],$cdom);
11208: if (ref($encdomconfig{$name}) eq 'HASH') {
11209: foreach my $id (keys(%lti)) {
11210: if (ref($encdomconfig{$name}{$id}) eq 'HASH') {
1.1344 raeburn 11211: foreach my $item ('key','secret') {
1.1360 raeburn 11212: $lti{$id}{$item} = $encdomconfig{$name}{$id}{$item};
1.1344 raeburn 11213: }
11214: }
11215: }
11216: }
1.1298 raeburn 11217: }
11218: my $cachetime = 24*60*60;
1.1360 raeburn 11219: &do_cache_new($name,$cdom,\%lti,$cachetime);
1.1298 raeburn 11220: }
1.1360 raeburn 11221: return %lti;
1.1298 raeburn 11222: }
11223:
1.1236 raeburn 11224: sub get_numsuppfiles {
11225: my ($cnum,$cdom,$ignorecache)=@_;
11226: my $hashid=$cnum.':'.$cdom;
11227: my ($suppcount,$cached);
11228: unless ($ignorecache) {
11229: ($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
11230: }
11231: unless (defined($cached)) {
11232: my $chome=&homeserver($cnum,$cdom);
11233: unless ($chome eq 'no_host') {
1.1366 raeburn 11234: ($suppcount,my $supptools,my $errors) = (0,0,0);
1.1236 raeburn 11235: my $suppmap = 'supplemental.sequence';
1.1366 raeburn 11236: ($suppcount,$supptools,$errors) =
11237: &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,
11238: $supptools,$errors);
1.1236 raeburn 11239: }
11240: &do_cache_new('suppcount',$hashid,$suppcount,600);
11241: }
11242: return $suppcount;
11243: }
11244:
1.379 matthew 11245: #
11246: # EXT resource caching routines
11247: #
11248:
1.1302 raeburn 11249: {
11250: # Cache (5 seconds) of map hierarchy for speedup of navmaps display
11251: #
11252: # The course for which we cache
11253: my $cachedmapkey='';
11254: # The cached recursive maps for this course
11255: my %cachedmaps=();
11256: # When this was last done
11257: my $cachedmaptime='';
11258:
1.379 matthew 11259: sub clear_EXT_cache_status {
1.383 albertel 11260: &delenv('cache.EXT.');
1.379 matthew 11261: }
11262:
11263: sub EXT_cache_status {
11264: my ($target_domain,$target_user) = @_;
1.383 albertel 11265: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 11266: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 11267: # We know already the user has no data
11268: return 1;
11269: } else {
11270: return 0;
11271: }
11272: }
11273:
11274: sub EXT_cache_set {
11275: my ($target_domain,$target_user) = @_;
1.383 albertel 11276: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 11277: #&appenv({$cachename => time});
1.379 matthew 11278: }
11279:
1.28 www 11280: # --------------------------------------------------------- Value of a Variable
1.58 www 11281: sub EXT {
1.715 albertel 11282:
1.1228 raeburn 11283: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
1.68 www 11284: unless ($varname) { return ''; }
1.218 albertel 11285: #get real user name/domain, courseid and symb
11286: my $courseid;
1.359 albertel 11287: my $publicuser;
1.427 www 11288: if ($symbparm) {
11289: $symbparm=&get_symb_from_alias($symbparm);
11290: }
1.218 albertel 11291: if (!($uname && $udom)) {
1.790 albertel 11292: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 11293: if (!$symbparm) { $symbparm=$cursymb; }
11294: } else {
1.620 albertel 11295: $courseid=$env{'request.course.id'};
1.218 albertel 11296: }
1.48 www 11297: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
11298: my $rest;
1.320 albertel 11299: if (defined($therest[0])) {
1.48 www 11300: $rest=join('.',@therest);
11301: } else {
11302: $rest='';
11303: }
1.320 albertel 11304:
1.57 www 11305: my $qualifierrest=$qualifier;
11306: if ($rest) { $qualifierrest.='.'.$rest; }
11307: my $spacequalifierrest=$space;
11308: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 11309: if ($realm eq 'user') {
1.48 www 11310: # --------------------------------------------------------------- user.resource
11311: if ($space eq 'resource') {
1.651 albertel 11312: if ( (defined($Apache::lonhomework::parsing_a_problem)
11313: || defined($Apache::lonhomework::parsing_a_task))
11314: &&
1.744 albertel 11315: ($symbparm eq &symbread()) ) {
11316: # if we are in the middle of processing the resource the
11317: # get the value we are planning on committing
11318: if (defined($Apache::lonhomework::results{$qualifierrest})) {
11319: return $Apache::lonhomework::results{$qualifierrest};
11320: } else {
11321: return $Apache::lonhomework::history{$qualifierrest};
11322: }
1.335 albertel 11323: } else {
1.359 albertel 11324: my %restored;
1.620 albertel 11325: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 11326: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
11327: } else {
11328: %restored=&restore($symbparm,$courseid,$udom,$uname);
11329: }
1.335 albertel 11330: return $restored{$qualifierrest};
11331: }
1.48 www 11332: # ----------------------------------------------------------------- user.access
11333: } elsif ($space eq 'access') {
1.218 albertel 11334: # FIXME - not supporting calls for a specific user
1.48 www 11335: return &allowed($qualifier,$rest);
11336: # ------------------------------------------ user.preferences, user.environment
11337: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 11338: if (($uname eq $env{'user.name'}) &&
11339: ($udom eq $env{'user.domain'})) {
11340: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 11341: } else {
1.359 albertel 11342: my %returnhash;
11343: if (!$publicuser) {
11344: %returnhash=&userenvironment($udom,$uname,
11345: $qualifierrest);
11346: }
1.218 albertel 11347: return $returnhash{$qualifierrest};
11348: }
1.48 www 11349: # ----------------------------------------------------------------- user.course
11350: } elsif ($space eq 'course') {
1.218 albertel 11351: # FIXME - not supporting calls for a specific user
1.620 albertel 11352: return $env{join('.',('request.course',$qualifier))};
1.48 www 11353: # ------------------------------------------------------------------- user.role
11354: } elsif ($space eq 'role') {
1.218 albertel 11355: # FIXME - not supporting calls for a specific user
1.620 albertel 11356: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 11357: if ($qualifier eq 'value') {
11358: return $role;
11359: } elsif ($qualifier eq 'extent') {
11360: return $where;
11361: }
11362: # ----------------------------------------------------------------- user.domain
11363: } elsif ($space eq 'domain') {
1.218 albertel 11364: return $udom;
1.48 www 11365: # ------------------------------------------------------------------- user.name
11366: } elsif ($space eq 'name') {
1.218 albertel 11367: return $uname;
1.48 www 11368: # ---------------------------------------------------- Any other user namespace
1.29 www 11369: } else {
1.359 albertel 11370: my %reply;
11371: if (!$publicuser) {
11372: %reply=&get($space,[$qualifierrest],$udom,$uname);
11373: }
11374: return $reply{$qualifierrest};
1.48 www 11375: }
1.236 www 11376: } elsif ($realm eq 'query') {
11377: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 11378: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
11379: [$spacequalifierrest]);
1.620 albertel 11380: return $env{'form.'.$spacequalifierrest};
1.236 www 11381: } elsif ($realm eq 'request') {
1.48 www 11382: # ------------------------------------------------------------- request.browser
11383: if ($space eq 'browser') {
1.1145 bisitz 11384: return $env{'browser.'.$qualifier};
1.57 www 11385: # ------------------------------------------------------------ request.filename
11386: } else {
1.620 albertel 11387: return $env{'request.'.$spacequalifierrest};
1.29 www 11388: }
1.28 www 11389: } elsif ($realm eq 'course') {
1.48 www 11390: # ---------------------------------------------------------- course.description
1.620 albertel 11391: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 11392: } elsif ($realm eq 'resource') {
1.165 www 11393:
1.620 albertel 11394: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 11395: if (!$symbparm) { $symbparm=&symbread(); }
11396: }
1.693 albertel 11397:
1.1232 raeburn 11398: if ($qualifier eq '') {
11399: if ($space eq 'title') {
11400: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
11401: return &gettitle($symbparm);
11402: }
1.693 albertel 11403:
1.1232 raeburn 11404: if ($space eq 'map') {
11405: my ($map) = &decode_symb($symbparm);
11406: return &symbread($map);
11407: }
11408: if ($space eq 'maptitle') {
11409: my ($map) = &decode_symb($symbparm);
11410: return &gettitle($map);
11411: }
11412: if ($space eq 'filename') {
11413: if ($symbparm) {
11414: return &clutter((&decode_symb($symbparm))[2]);
11415: }
11416: return &hreflocation('',$env{'request.filename'});
1.905 albertel 11417: }
1.1232 raeburn 11418:
1.1233 raeburn 11419: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
11420: if ($space eq 'visibleparts') {
11421: my $navmap = Apache::lonnavmaps::navmap->new();
11422: my $item;
11423: if (ref($navmap)) {
11424: my $res = $navmap->getBySymb($symbparm);
11425: my $parts = $res->parts();
11426: if (ref($parts) eq 'ARRAY') {
11427: $item = join(',',@{$parts});
11428: }
11429: undef($navmap);
1.1232 raeburn 11430: }
1.1233 raeburn 11431: return $item;
1.1232 raeburn 11432: }
11433: }
11434: }
1.693 albertel 11435:
1.1301 raeburn 11436: my ($section, $group, @groups, @recurseup, $recursed);
11437: my ($courselevelm,$courseleveli,$courselevel,$mapp);
1.1228 raeburn 11438: if (($courseid eq '') && ($cid)) {
11439: $courseid = $cid;
11440: }
11441: if (($symbparm && $courseid) &&
11442: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
1.165 www 11443:
1.218 albertel 11444: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 11445:
1.60 www 11446: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 11447: my $symbp=$symbparm;
1.1301 raeburn 11448: $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 11449: my $symbparm=$symbp.'.'.$spacequalifierrest;
1.1301 raeburn 11450: my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest;
1.218 albertel 11451: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
1.620 albertel 11452: if (($env{'user.name'} eq $uname) &&
11453: ($env{'user.domain'} eq $udom)) {
11454: $section=$env{'request.course.sec'};
1.733 raeburn 11455: @groups = split(/:/,$env{'request.course.groups'});
11456: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 11457: } else {
1.539 albertel 11458: if (! defined($usection)) {
1.551 albertel 11459: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 11460: } else {
11461: $section = $usection;
11462: }
1.733 raeburn 11463: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 11464: }
11465:
11466: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
11467: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
1.1301 raeburn 11468: my $secleveli=$courseid.'.['.$section.'].'.$recurseparm;
1.218 albertel 11469: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
11470:
1.593 albertel 11471: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 11472: my $courselevelr=$courseid.'.'.$symbparm;
1.1301 raeburn 11473: $courseleveli=$courseid.'.'.$recurseparm;
1.593 albertel 11474: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 11475:
1.60 www 11476: # ----------------------------------------------------------- first, check user
1.624 albertel 11477:
1.1301 raeburn 11478: my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed,
11479: \@recurseup,$courseid,'.',$spacequalifierrest,
1.927 albertel 11480: ([$courselevelr,'resource'],
11481: [$courselevelm,'map' ],
1.1301 raeburn 11482: [$courseleveli,'map' ],
1.927 albertel 11483: [$courselevel, 'course' ]));
1.931 albertel 11484: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 11485:
1.594 albertel 11486: # ------------------------------------------------ second, check some of course
1.684 raeburn 11487: my $coursereply;
1.691 raeburn 11488: if (@groups > 0) {
11489: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
1.1301 raeburn 11490: $recurseparm,$mapparm,$spacequalifierrest,
11491: $mapp,\$recursed,\@recurseup);
11492: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 11493: }
1.96 www 11494:
1.684 raeburn 11495: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 11496: $env{'course.'.$courseid.'.domain'},
1.1301 raeburn 11497: 'course',$mapp,\$recursed,\@recurseup,
11498: $courseid,'.['.$section.'].',$spacequalifierrest,
1.927 albertel 11499: ([$seclevelr, 'resource'],
11500: [$seclevelm, 'map' ],
1.1301 raeburn 11501: [$secleveli, 'map' ],
1.927 albertel 11502: [$seclevel, 'course' ],
11503: [$courselevelr,'resource']));
11504: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 11505:
1.60 www 11506: # ------------------------------------------------------ third, check map parms
1.218 albertel 11507: my %parmhash=();
11508: my $thisparm='';
11509: if (tie(%parmhash,'GDBM_File',
1.620 albertel 11510: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 11511: &GDBM_READER(),0640)) {
1.218 albertel 11512: $thisparm=$parmhash{$symbparm};
11513: untie(%parmhash);
11514: }
1.927 albertel 11515: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 11516: }
1.594 albertel 11517: # ------------------------------------------ fourth, look in resource metadata
1.1301 raeburn 11518:
11519: my $what = $spacequalifierrest;
11520: $what=~s/\./\_/;
1.282 albertel 11521: my $filename;
11522: if (!$symbparm) { $symbparm=&symbread(); }
11523: if ($symbparm) {
1.409 www 11524: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 11525: } else {
1.620 albertel 11526: $filename=$env{'request.filename'};
1.282 albertel 11527: }
1.1362 raeburn 11528: my $toolsymb;
11529: if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) {
11530: $toolsymb = $symbparm;
11531: }
11532: my $metadata=&metadata($filename,$what,$toolsymb);
1.927 albertel 11533: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.1362 raeburn 11534: $metadata=&metadata($filename,'parameter_'.$what,$toolsymb);
1.927 albertel 11535: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 11536:
1.1301 raeburn 11537: # ----------------------------------------------- fifth, look in rest of course
1.593 albertel 11538: if ($symbparm && defined($courseid) &&
1.620 albertel 11539: $courseid eq $env{'request.course.id'}) {
1.624 albertel 11540: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
11541: $env{'course.'.$courseid.'.domain'},
1.1301 raeburn 11542: 'course',$mapp,\$recursed,\@recurseup,
11543: $courseid,'.',$spacequalifierrest,
1.927 albertel 11544: ([$courselevelm,'map' ],
1.1301 raeburn 11545: [$courseleveli,'map' ],
1.927 albertel 11546: [$courselevel, 'course']));
11547: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 11548: }
1.145 www 11549: # ------------------------------------------------------------------ Cascade up
1.218 albertel 11550: unless ($space eq '0') {
1.336 albertel 11551: my @parts=split(/_/,$space);
11552: my $id=pop(@parts);
11553: my $part=join('_',@parts);
11554: if ($part eq '') { $part='0'; }
1.927 albertel 11555: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 11556: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 11557: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 11558: }
1.395 albertel 11559: if ($recurse) { return undef; }
1.1362 raeburn 11560: my $pack_def=&packages_tab_default($filename,$varname,$toolsymb);
1.927 albertel 11561: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 11562: # ---------------------------------------------------- Any other user namespace
11563: } elsif ($realm eq 'environment') {
11564: # ----------------------------------------------------------------- environment
1.620 albertel 11565: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
11566: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 11567: } else {
1.770 albertel 11568: if ($uname eq 'anonymous' && $udom eq '') {
11569: return '';
11570: }
1.219 albertel 11571: my %returnhash=&userenvironment($udom,$uname,
11572: $spacequalifierrest);
11573: return $returnhash{$spacequalifierrest};
11574: }
1.28 www 11575: } elsif ($realm eq 'system') {
1.48 www 11576: # ----------------------------------------------------------------- system.time
11577: if ($space eq 'time') {
11578: return time;
11579: }
1.696 albertel 11580: } elsif ($realm eq 'server') {
11581: # ----------------------------------------------------------------- system.time
11582: if ($space eq 'name') {
11583: return $ENV{'SERVER_NAME'};
11584: }
1.28 www 11585: }
1.48 www 11586: return '';
1.61 www 11587: }
11588:
1.927 albertel 11589: sub get_reply {
11590: my ($reply_value) = @_;
1.940 raeburn 11591: if (ref($reply_value) eq 'ARRAY') {
11592: if (wantarray) {
11593: return @$reply_value;
11594: }
11595: return $reply_value->[0];
11596: } else {
11597: return $reply_value;
1.927 albertel 11598: }
11599: }
11600:
1.691 raeburn 11601: sub check_group_parms {
1.1301 raeburn 11602: my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp,
11603: $recursed,$recurseupref) = @_;
11604: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'],
11605: [$what,'course']);
11606: my $coursereply;
1.691 raeburn 11607: foreach my $group (@{$groups}) {
1.1301 raeburn 11608: my @groupitems = ();
1.691 raeburn 11609: foreach my $level (@levels) {
1.927 albertel 11610: my $item = $courseid.'.['.$group.'].'.$level->[0];
11611: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 11612: }
1.1301 raeburn 11613: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
11614: $env{'course.'.$courseid.'.domain'},
11615: 'course',$mapp,$recursed,$recurseupref,
11616: $courseid,'.['.$group.'].',$what,
11617: @groupitems);
11618: last if (defined($coursereply));
1.691 raeburn 11619: }
11620: return $coursereply;
11621: }
11622:
1.1301 raeburn 11623: sub get_map_hierarchy {
1.1302 raeburn 11624: my ($mapname,$courseid) = @_;
11625: my @recurseup = ();
1.1301 raeburn 11626: if ($mapname) {
1.1302 raeburn 11627: if (($cachedmapkey eq $courseid) &&
11628: (abs($cachedmaptime-time)<5)) {
11629: if (ref($cachedmaps{$mapname}) eq 'ARRAY') {
11630: return @{$cachedmaps{$mapname}};
11631: }
11632: }
1.1301 raeburn 11633: my $navmap = Apache::lonnavmaps::navmap->new();
11634: if (ref($navmap)) {
11635: @recurseup = $navmap->recurseup_maps($mapname);
11636: undef($navmap);
1.1302 raeburn 11637: $cachedmaps{$mapname} = \@recurseup;
11638: $cachedmaptime=time;
11639: $cachedmapkey=$courseid;
1.1301 raeburn 11640: }
11641: }
11642: return @recurseup;
11643: }
11644:
1.1302 raeburn 11645: }
11646:
1.691 raeburn 11647: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 11648: my ($courseid,@groups) = @_;
11649: @groups = sort(@groups);
1.691 raeburn 11650: return @groups;
11651: }
11652:
1.395 albertel 11653: sub packages_tab_default {
1.1362 raeburn 11654: my ($uri,$varname,$toolsymb)=@_;
1.395 albertel 11655: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 11656:
11657: my (@extension,@specifics,$do_default);
1.1362 raeburn 11658: foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) {
1.395 albertel 11659: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 11660: if ($pack_type eq 'default') {
11661: $do_default=1;
11662: } elsif ($pack_type eq 'extension') {
11663: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 11664: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 11665: # only look at packages defaults for packages that this id is
1.738 albertel 11666: push(@specifics,[$package,$pack_type,$pack_part]);
11667: }
11668: }
11669: # first look for a package that matches the requested part id
11670: foreach my $package (@specifics) {
11671: my (undef,$pack_type,$pack_part)=@{$package};
11672: next if ($pack_part ne $part);
11673: if (defined($packagetab{"$pack_type&$name&default"})) {
11674: return $packagetab{"$pack_type&$name&default"};
11675: }
11676: }
11677: # look for any possible matching non extension_ package
11678: foreach my $package (@specifics) {
11679: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 11680: if (defined($packagetab{"$pack_type&$name&default"})) {
11681: return $packagetab{"$pack_type&$name&default"};
11682: }
1.585 albertel 11683: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 11684: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
11685: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 11686: }
11687: }
1.738 albertel 11688: # look for any posible extension_ match
11689: foreach my $package (@extension) {
11690: my ($package,$pack_type)=@{$package};
11691: if (defined($packagetab{"$pack_type&$name&default"})) {
11692: return $packagetab{"$pack_type&$name&default"};
11693: }
11694: if (defined($packagetab{$package."&$name&default"})) {
11695: return $packagetab{$package."&$name&default"};
11696: }
11697: }
11698: # look for a global default setting
11699: if ($do_default && defined($packagetab{"default&$name&default"})) {
11700: return $packagetab{"default&$name&default"};
11701: }
1.395 albertel 11702: return undef;
11703: }
11704:
1.334 albertel 11705: sub add_prefix_and_part {
11706: my ($prefix,$part)=@_;
11707: my $keyroot;
11708: if (defined($prefix) && $prefix !~ /^__/) {
11709: # prefix that has a part already
11710: $keyroot=$prefix;
11711: } elsif (defined($prefix)) {
11712: # prefix that is missing a part
11713: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
11714: } else {
11715: # no prefix at all
11716: if (defined($part)) { $keyroot='_'.$part; }
11717: }
11718: return $keyroot;
11719: }
11720:
1.71 www 11721: # ---------------------------------------------------------------- Get metadata
11722:
1.599 albertel 11723: my %metaentry;
1.1070 www 11724: my %importedpartids;
1.71 www 11725: sub metadata {
1.1362 raeburn 11726: my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_;
1.71 www 11727: $uri=&declutter($uri);
1.288 albertel 11728: # if it is a non metadata possible uri return quickly
1.529 albertel 11729: if (($uri eq '') ||
11730: (($uri =~ m|^/*adm/|) &&
1.1343 raeburn 11731: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard|ext\.tool)$})) ||
1.1108 raeburn 11732: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 11733: return undef;
11734: }
1.1261 raeburn 11735: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
1.924 albertel 11736: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 11737: return undef;
1.288 albertel 11738: }
1.73 www 11739: my $filename=$uri;
11740: $uri=~s/\.meta$//;
1.172 www 11741: #
11742: # Is the metadata already cached?
1.177 www 11743: # Look at timestamp of caching
1.172 www 11744: # Everything is cached by the main uri, libraries are never directly cached
11745: #
1.428 albertel 11746: if (!defined($liburi)) {
1.599 albertel 11747: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 11748: if (defined($cached)) { return $result->{':'.$what}; }
11749: }
1.1362 raeburn 11750:
11751: #
11752: # If the uri is for an external tool the file from
11753: # which metadata should be retrieved depends on whether
11754: # the tool had been configured to be gradable (set in the Course
11755: # Editor or Resource Editor).
11756: #
11757: # If a valid symb has been included as the third arg in the call
11758: # to &metadata() that can be used to retrieve the value of
11759: # parameter_0_gradable set for the resource, and included in the
11760: # uploaded map containing the tool. The value is retrieved via
11761: # &EXT(), if a valid symb is available. Otherwise the value of
11762: # gradable in the exttool_$marker.db file for the tool instance
1.1364 raeburn 11763: # is retrieved via &get().
11764: #
11765: # When lonuserstate::traceroute() calls lonnet::EXT() for
11766: # hiddenresource and encrypturl (during course initialization)
11767: # the map-level parameter for resource.0.gradable included in the
11768: # uploaded map containing the tool will not yet have been stored
11769: # in the user_course_parms.db file for the user's session, so in
11770: # this case fall back to retrieving gradable status from the
11771: # exttool_$marker.db file.
1.1362 raeburn 11772: #
11773: # In order to avoid an infinite loop, &metadata() will return
11774: # before a call to &EXT(), if the uri is for an external tool
11775: # and the $what for which metadata is being requested is
11776: # parameter_0_gradable or 0_gradable.
11777: #
11778:
11779: if ($uri =~ /ext\.tool$/) {
11780: if (($what eq 'parameter_0_gradable') || ($what eq '0_gradable')) {
11781: return;
11782: } else {
11783: my ($checked,$use_passback);
11784: if ($toolsymb ne '') {
11785: (undef,undef,my $tooluri) = &decode_symb($toolsymb);
1.1364 raeburn 11786: if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) {
1.1362 raeburn 11787: $checked = 1;
11788: if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) {
11789: $use_passback = 1;
11790: }
11791: }
11792: }
11793: unless ($checked) {
11794: my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri);
11795: $marker=~s/\D//g;
1.1363 raeburn 11796: if ($marker) {
1.1362 raeburn 11797: my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum);
11798: $use_passback = $toolsettings{'gradable'};
11799: }
11800: }
11801: if ($use_passback) {
11802: $filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool';
11803: } else {
11804: $filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool';
11805: }
11806: }
11807: }
11808:
1.428 albertel 11809: {
1.1069 www 11810: # Imported parts would go here
1.1070 www 11811: my %importedids=();
11812: my @origfileimportpartids=();
1.1069 www 11813: my $importedparts=0;
1.172 www 11814: #
11815: # Is this a recursive call for a library?
11816: #
1.599 albertel 11817: # if (! exists($metacache{$uri})) {
11818: # $metacache{$uri}={};
11819: # }
1.924 albertel 11820: my $cachetime = 60*60;
1.171 www 11821: if ($liburi) {
11822: $liburi=&declutter($liburi);
11823: $filename=$liburi;
1.401 bowersj2 11824: } else {
1.599 albertel 11825: &devalidate_cache_new('meta',$uri);
11826: undef(%metaentry);
1.401 bowersj2 11827: }
1.140 www 11828: my %metathesekeys=();
1.73 www 11829: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 11830: my $metastring;
1.1140 www 11831: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 11832: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 11833: $metastring =
1.929 albertel 11834: &Apache::lonnet::ssi_body($which,
1.924 albertel 11835: ('grade_target' => 'meta'));
11836: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 11837: } elsif (($uri !~ m -^(editupload)/-) &&
11838: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 11839: my $file=&filelocation('',&clutter($filename));
1.599 albertel 11840: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 11841: $metastring=&getfile($file);
1.489 albertel 11842: }
1.208 albertel 11843: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 11844: my $token;
1.140 www 11845: undef %metathesekeys;
1.71 www 11846: while ($token=$parser->get_token) {
1.339 albertel 11847: if ($token->[0] eq 'S') {
11848: if (defined($token->[2]->{'package'})) {
1.172 www 11849: #
11850: # This is a package - get package info
11851: #
1.339 albertel 11852: my $package=$token->[2]->{'package'};
11853: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11854: if (defined($token->[2]->{'id'})) {
11855: $keyroot.='_'.$token->[2]->{'id'};
11856: }
1.599 albertel 11857: if ($metaentry{':packages'}) {
11858: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 11859: } else {
1.599 albertel 11860: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 11861: }
1.736 albertel 11862: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 11863: my $part=$keyroot;
11864: $part=~s/^\_//;
1.736 albertel 11865: if ($pack_entry=~/^\Q$package\E\&/ ||
11866: $pack_entry=~/^\Q$package\E_0\&/) {
11867: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 11868: # ignore package.tab specified default values
11869: # here &package_tab_default() will fetch those
11870: if ($subp eq 'default') { next; }
1.736 albertel 11871: my $value=$packagetab{$pack_entry};
1.432 albertel 11872: my $unikey;
11873: if ($pack =~ /_0$/) {
11874: $unikey='parameter_0_'.$name;
11875: $part=0;
11876: } else {
11877: $unikey='parameter'.$keyroot.'_'.$name;
11878: }
1.339 albertel 11879: if ($subp eq 'display') {
11880: $value.=' [Part: '.$part.']';
11881: }
1.599 albertel 11882: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 11883: $metathesekeys{$unikey}=1;
1.599 albertel 11884: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
11885: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 11886: }
1.599 albertel 11887: if (defined($metaentry{':'.$unikey.'.default'})) {
11888: $metaentry{':'.$unikey}=
11889: $metaentry{':'.$unikey.'.default'};
1.356 albertel 11890: }
1.339 albertel 11891: }
11892: }
11893: } else {
1.172 www 11894: #
11895: # This is not a package - some other kind of start tag
1.339 albertel 11896: #
11897: my $entry=$token->[1];
1.1068 www 11898: my $unikey='';
1.175 www 11899:
1.339 albertel 11900: if ($entry eq 'import') {
1.175 www 11901: #
11902: # Importing a library here
1.339 albertel 11903: #
1.1067 www 11904: my $location=$parser->get_text('/import');
11905: my $dir=$filename;
11906: $dir=~s|[^/]*$||;
11907: $location=&filelocation($dir,$location);
1.1069 www 11908:
1.1068 www 11909: my $importmode=$token->[2]->{'importmode'};
11910: if ($importmode eq 'problem') {
1.1069 www 11911: # Import as problem/response
1.1068 www 11912: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11913: } elsif ($importmode eq 'part') {
11914: # Import as part(s)
1.1069 www 11915: $importedparts=1;
11916: # We need to get the original file and the imported file to get the part order correct
11917: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
11918: # Load and inspect original file
1.1070 www 11919: if ($#origfileimportpartids<0) {
11920: undef(%importedpartids);
11921: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
11922: my $origfile=&getfile($origfilelocation);
11923: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11924: }
11925:
1.1069 www 11926: # Load and inspect imported file
11927: my $impfile=&getfile($location);
11928: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11929: if ($#impfilepartids>=0) {
11930: # This problem had parts
1.1070 www 11931: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 11932: } else {
11933: # Importing by turning a single problem into a problem part
11934: # It gets the import-tags ID as part-ID
11935: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 11936: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 11937: }
1.1068 www 11938: } else {
11939: # Normal import
11940: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11941: if (defined($token->[2]->{'id'})) {
11942: $unikey.='_'.$token->[2]->{'id'};
11943: }
1.1067 www 11944: }
11945:
1.339 albertel 11946: if ($depthcount<20) {
1.736 albertel 11947: my $metadata =
1.1362 raeburn 11948: &metadata($uri,'keys',$toolsymb,$location,$unikey,
1.736 albertel 11949: $depthcount+1);
11950: foreach my $meta (split(',',$metadata)) {
11951: $metaentry{':'.$meta}=$metaentry{':'.$meta};
11952: $metathesekeys{$meta}=1;
1.339 albertel 11953: }
1.1068 www 11954:
11955: }
1.1067 www 11956: } else {
11957: #
11958: # Not importing, some other kind of non-package, non-library start tag
11959: #
11960: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
11961: if (defined($token->[2]->{'id'})) {
11962: $unikey.='_'.$token->[2]->{'id'};
11963: }
1.339 albertel 11964: if (defined($token->[2]->{'name'})) {
11965: $unikey.='_'.$token->[2]->{'name'};
11966: }
11967: $metathesekeys{$unikey}=1;
1.736 albertel 11968: foreach my $param (@{$token->[3]}) {
11969: $metaentry{':'.$unikey.'.'.$param} =
11970: $token->[2]->{$param};
1.339 albertel 11971: }
11972: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 11973: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 11974: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
11975: # only ws inside the tag, and not in default, so use default
11976: # as value
1.599 albertel 11977: $metaentry{':'.$unikey}=$default;
1.908 albertel 11978: } elsif ( $internaltext =~ /\S/ ) {
11979: # something interesting inside the tag
11980: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 11981: } else {
1.908 albertel 11982: # no interesting values, don't set a default
1.339 albertel 11983: }
1.172 www 11984: # end of not-a-package not-a-library import
1.339 albertel 11985: }
1.172 www 11986: # end of not-a-package start tag
1.339 albertel 11987: }
1.172 www 11988: # the next is the end of "start tag"
1.339 albertel 11989: }
11990: }
1.483 albertel 11991: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 11992: $extension = lc($extension);
11993: if ($extension eq 'htm') { $extension='html'; }
11994:
1.737 albertel 11995: foreach my $key (keys(%packagetab)) {
1.483 albertel 11996: #no specific packages #how's our extension
11997: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 11998: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 11999: \%metathesekeys);
12000: }
1.883 albertel 12001:
12002: if (!exists($metaentry{':packages'})
12003: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 12004: foreach my $key (keys(%packagetab)) {
1.483 albertel 12005: #no specific packages well let's get default then
12006: if ($key!~/^default&/) { next; }
1.488 albertel 12007: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 12008: \%metathesekeys);
12009: }
12010: }
1.338 www 12011: # are there custom rights to evaluate
1.599 albertel 12012: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 12013:
1.338 www 12014: #
12015: # Importing a rights file here
1.339 albertel 12016: #
12017: unless ($depthcount) {
1.599 albertel 12018: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 12019: my $dir=$filename;
12020: $dir=~s|[^/]*$||;
12021: $location=&filelocation($dir,$location);
1.736 albertel 12022: my $rights_metadata =
1.1362 raeburn 12023: &metadata($uri,'keys',$toolsymb,$location,'_rights',
1.736 albertel 12024: $depthcount+1);
12025: foreach my $rights (split(',',$rights_metadata)) {
12026: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
12027: $metathesekeys{$rights}=1;
1.339 albertel 12028: }
12029: }
12030: }
1.737 albertel 12031: # uniqifiy package listing
12032: my %seen;
12033: my @uniq_packages =
12034: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
12035: $metaentry{':packages'} = join(',',@uniq_packages);
12036:
1.1070 www 12037: if ($importedparts) {
12038: # We had imported parts and need to rebuild partorder
12039: $metaentry{':partorder'}='';
12040: $metathesekeys{'partorder'}=1;
12041: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
12042: if ($origfileimportpartids[$index] eq 'part') {
12043: # original part, part of the problem
12044: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
12045: } else {
12046: # we have imported parts at this position
12047: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
12048: }
12049: }
12050: $metaentry{':partorder'}=~s/^\,//;
12051: }
12052:
1.737 albertel 12053: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 12054: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
1.1274 raeburn 12055: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
1.924 albertel 12056: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 12057: # this is the end of "was not already recently cached
1.71 www 12058: }
1.599 albertel 12059: return $metaentry{':'.$what};
1.261 albertel 12060: }
12061:
1.488 albertel 12062: sub metadata_create_package_def {
1.483 albertel 12063: my ($uri,$key,$package,$metathesekeys)=@_;
12064: my ($pack,$name,$subp)=split(/\&/,$key);
12065: if ($subp eq 'default') { next; }
12066:
1.599 albertel 12067: if (defined($metaentry{':packages'})) {
12068: $metaentry{':packages'}.=','.$package;
1.483 albertel 12069: } else {
1.599 albertel 12070: $metaentry{':packages'}=$package;
1.483 albertel 12071: }
12072: my $value=$packagetab{$key};
12073: my $unikey;
12074: $unikey='parameter_0_'.$name;
1.599 albertel 12075: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 12076: $$metathesekeys{$unikey}=1;
1.599 albertel 12077: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
12078: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 12079: }
1.599 albertel 12080: if (defined($metaentry{':'.$unikey.'.default'})) {
12081: $metaentry{':'.$unikey}=
12082: $metaentry{':'.$unikey.'.default'};
1.483 albertel 12083: }
12084: }
12085:
1.261 albertel 12086: sub metadata_generate_part0 {
12087: my ($metadata,$metacache,$uri) = @_;
12088: my %allnames;
1.737 albertel 12089: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 12090: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 12091: my $part=$$metacache{':'.$metakey.'.part'};
12092: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 12093: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 12094: $allnames{$name}=$part;
12095: }
12096: }
12097: }
12098: foreach my $name (keys(%allnames)) {
12099: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 12100: my $key=":parameter_0_$name";
1.261 albertel 12101: $$metacache{"$key.part"}='0';
12102: $$metacache{"$key.name"}=$name;
1.428 albertel 12103: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 12104: $allnames{$name}.'_'.$name.
12105: '.type'};
1.428 albertel 12106: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 12107: '.display'};
1.644 www 12108: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 12109: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 12110: $$metacache{"$key.display"}=$olddis;
12111: }
1.71 www 12112: }
12113:
1.764 albertel 12114: # ------------------------------------------------------ Devalidate title cache
12115:
12116: sub devalidate_title_cache {
12117: my ($url)=@_;
12118: if (!$env{'request.course.id'}) { return; }
12119: my $symb=&symbread($url);
12120: if (!$symb) { return; }
12121: my $key=$env{'request.course.id'}."\0".$symb;
12122: &devalidate_cache_new('title',$key);
12123: }
12124:
1.1014 droeschl 12125: # ------------------------------------------------- Get the title of a course
12126:
12127: sub current_course_title {
12128: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
12129: }
1.301 www 12130: # ------------------------------------------------- Get the title of a resource
12131:
12132: sub gettitle {
12133: my $urlsymb=shift;
12134: my $symb=&symbread($urlsymb);
1.534 albertel 12135: if ($symb) {
1.620 albertel 12136: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 12137: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 12138: if (defined($cached)) {
12139: return $result;
12140: }
1.534 albertel 12141: my ($map,$resid,$url)=&decode_symb($symb);
12142: my $title='';
1.907 albertel 12143: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
12144: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
12145: } else {
12146: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
12147: &GDBM_READER(),0640)) {
12148: my $mapid=$bighash{'map_pc_'.&clutter($map)};
12149: $title=$bighash{'title_'.$mapid.'.'.$resid};
12150: untie(%bighash);
12151: }
1.534 albertel 12152: }
12153: $title=~s/\&colon\;/\:/gs;
12154: if ($title) {
1.1159 www 12155: # Remember both $symb and $title for dynamic metadata
12156: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 12157: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 12158: # Cache this title and then return it
1.599 albertel 12159: return &do_cache_new('title',$key,$title,600);
1.534 albertel 12160: }
12161: $urlsymb=$url;
12162: }
12163: my $title=&metadata($urlsymb,'title');
12164: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
12165: return $title;
1.301 www 12166: }
1.613 albertel 12167:
1.614 albertel 12168: sub get_slot {
12169: my ($which,$cnum,$cdom)=@_;
12170: if (!$cnum || !$cdom) {
1.790 albertel 12171: (undef,my $courseid)=&whichuser();
1.620 albertel 12172: $cdom=$env{'course.'.$courseid.'.domain'};
12173: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 12174: }
1.703 albertel 12175: my $key=join("\0",'slots',$cdom,$cnum,$which);
12176: my %slotinfo;
12177: if (exists($remembered{$key})) {
12178: $slotinfo{$which} = $remembered{$key};
12179: } else {
12180: %slotinfo=&get('slots',[$which],$cdom,$cnum);
12181: &Apache::lonhomework::showhash(%slotinfo);
12182: my ($tmp)=keys(%slotinfo);
12183: if ($tmp=~/^error:/) { return (); }
12184: $remembered{$key} = $slotinfo{$which};
12185: }
1.616 albertel 12186: if (ref($slotinfo{$which}) eq 'HASH') {
12187: return %{$slotinfo{$which}};
12188: }
12189: return $slotinfo{$which};
1.614 albertel 12190: }
1.1150 raeburn 12191:
12192: sub get_reservable_slots {
12193: my ($cnum,$cdom,$uname,$udom) = @_;
12194: my $now = time;
12195: my $reservable_info;
12196: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
12197: if (exists($remembered{$key})) {
12198: $reservable_info = $remembered{$key};
12199: } else {
12200: my %resv;
12201: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
12202: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
12203: $reservable_info = \%resv;
12204: $remembered{$key} = $reservable_info;
12205: }
12206: return $reservable_info;
12207: }
12208:
12209: sub get_course_slots {
12210: my ($cnum,$cdom) = @_;
12211: my $hashid=$cnum.':'.$cdom;
12212: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
12213: if (defined($cached)) {
12214: if (ref($result) eq 'HASH') {
12215: return %{$result};
12216: }
12217: } else {
12218: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
12219: my ($tmp) = keys(%slots);
12220: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.1219 raeburn 12221: &do_cache_new('allslots',$hashid,\%slots,600);
1.1150 raeburn 12222: return %slots;
12223: }
12224: }
12225: return;
12226: }
12227:
12228: sub devalidate_slots_cache {
12229: my ($cnum,$cdom)=@_;
12230: my $hashid=$cnum.':'.$cdom;
12231: &devalidate_cache_new('allslots',$hashid);
12232: }
12233:
1.1181 raeburn 12234: sub get_coursechange {
12235: my ($cdom,$cnum) = @_;
12236: if ($cdom eq '' || $cnum eq '') {
12237: return unless ($env{'request.course.id'});
12238: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
12239: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
12240: }
12241: my $hashid=$cdom.'_'.$cnum;
12242: my ($change,$cached)=&is_cached_new('crschange',$hashid);
12243: if ((defined($cached)) && ($change ne '')) {
12244: return $change;
12245: } else {
12246: my %crshash;
12247: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
12248: if ($crshash{'internal.contentchange'} eq '') {
12249: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
12250: if ($change eq '') {
12251: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
12252: $change = $crshash{'internal.created'};
12253: }
12254: } else {
12255: $change = $crshash{'internal.contentchange'};
12256: }
12257: my $cachetime = 600;
12258: &do_cache_new('crschange',$hashid,$change,$cachetime);
12259: }
12260: return $change;
12261: }
12262:
12263: sub devalidate_coursechange_cache {
12264: my ($cnum,$cdom)=@_;
12265: my $hashid=$cnum.':'.$cdom;
12266: &devalidate_cache_new('crschange',$hashid);
12267: }
12268:
1.31 www 12269: # ------------------------------------------------- Update symbolic store links
12270:
12271: sub symblist {
12272: my ($mapname,%newhash)=@_;
1.438 www 12273: $mapname=&deversion(&declutter($mapname));
1.31 www 12274: my %hash;
1.620 albertel 12275: if (($env{'request.course.fn'}) && (%newhash)) {
12276: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 12277: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 12278: foreach my $url (keys(%newhash)) {
1.711 albertel 12279: next if ($url eq 'last_known'
12280: && $env{'form.no_update_last_known'});
12281: $hash{declutter($url)}=&encode_symb($mapname,
12282: $newhash{$url}->[1],
12283: $newhash{$url}->[0]);
1.191 harris41 12284: }
1.31 www 12285: if (untie(%hash)) {
12286: return 'ok';
12287: }
12288: }
12289: }
12290: return 'error';
1.212 www 12291: }
12292:
12293: # --------------------------------------------------------------- Verify a symb
12294:
12295: sub symbverify {
1.1190 raeburn 12296: my ($symb,$thisurl,$encstate)=@_;
1.510 www 12297: my $thisfn=$thisurl;
1.439 www 12298: $thisfn=&declutter($thisfn);
1.215 www 12299: # direct jump to resource in page or to a sequence - will construct own symbs
12300: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
12301: # check URL part
1.409 www 12302: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 12303:
1.431 www 12304: unless ($url eq $thisfn) { return 0; }
1.213 www 12305:
1.216 www 12306: $symb=&symbclean($symb);
1.510 www 12307: $thisurl=&deversion($thisurl);
1.439 www 12308: $thisfn=&deversion($thisfn);
1.213 www 12309:
12310: my %bighash;
12311: my $okay=0;
1.431 www 12312:
1.620 albertel 12313: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 12314: &GDBM_READER(),0640)) {
1.1204 raeburn 12315: my $noclutter;
1.1032 raeburn 12316: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
12317: $thisurl =~ s/\?.+$//;
1.1204 raeburn 12318: if ($map =~ m{^uploaded/.+\.page$}) {
12319: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
12320: $thisurl =~ s{^\Qhttp://https://\E}{https://};
12321: $noclutter = 1;
12322: }
12323: }
12324: my $ids;
12325: if ($noclutter) {
12326: $ids=$bighash{'ids_'.$thisurl};
12327: } else {
12328: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 12329: }
1.1102 raeburn 12330: unless ($ids) {
12331: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
12332: $ids=$bighash{$idkey};
1.216 www 12333: }
12334: if ($ids) {
12335: # ------------------------------------------------------------------- Has ID(s)
1.1202 raeburn 12336: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
1.1203 raeburn 12337: $symb =~ s/\?.+$//;
1.1202 raeburn 12338: }
1.800 albertel 12339: foreach my $id (split(/\,/,$ids)) {
12340: my ($mapid,$resid)=split(/\./,$id);
1.216 www 12341: if (
12342: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1190 raeburn 12343: eq $symb) {
12344: if (ref($encstate)) {
12345: $$encstate = $bighash{'encrypted_'.$id};
12346: }
1.620 albertel 12347: if (($env{'request.role.adv'}) ||
1.1101 raeburn 12348: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
12349: ($thisurl eq '/adm/navmaps')) {
1.1190 raeburn 12350: $okay=1;
1.1202 raeburn 12351: last;
1.582 albertel 12352: }
12353: }
1.216 www 12354: }
12355: }
1.213 www 12356: untie(%bighash);
12357: }
12358: return $okay;
1.31 www 12359: }
12360:
1.210 www 12361: # --------------------------------------------------------------- Clean-up symb
12362:
12363: sub symbclean {
12364: my $symb=shift;
1.568 albertel 12365: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 12366: # remove version from map
12367: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 12368:
1.210 www 12369: # remove version from URL
12370: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 12371:
1.507 www 12372: # remove wrapper
12373:
1.510 www 12374: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 12375: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 12376: return $symb;
1.409 www 12377: }
12378:
12379: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 12380:
12381: sub encode_symb {
12382: my ($map,$resid,$url)=@_;
12383: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
12384: }
1.409 www 12385:
12386: sub decode_symb {
1.568 albertel 12387: my $symb=shift;
12388: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
12389: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 12390: return (&fixversion($map),$resid,&fixversion($url));
12391: }
12392:
12393: sub fixversion {
12394: my $fn=shift;
1.609 banghart 12395: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 12396: my %bighash;
12397: my $uri=&clutter($fn);
1.620 albertel 12398: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 12399: # is this cached?
1.599 albertel 12400: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 12401: if (defined($cached)) { return $result; }
12402: # unfortunately not cached, or expired
1.620 albertel 12403: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 12404: &GDBM_READER(),0640)) {
12405: if ($bighash{'version_'.$uri}) {
12406: my $version=$bighash{'version_'.$uri};
1.444 www 12407: unless (($version eq 'mostrecent') ||
12408: ($version==&getversion($uri))) {
1.440 www 12409: $uri=~s/\.(\w+)$/\.$version\.$1/;
12410: }
12411: }
12412: untie %bighash;
1.413 www 12413: }
1.599 albertel 12414: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 12415: }
12416:
12417: sub deversion {
12418: my $url=shift;
12419: $url=~s/\.\d+\.(\w+)$/\.$1/;
12420: return $url;
1.210 www 12421: }
12422:
1.31 www 12423: # ------------------------------------------------------ Return symb list entry
12424:
12425: sub symbread {
1.1282 raeburn 12426: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_;
1.1265 raeburn 12427: my $cache_str='request.symbread.cached.'.$thisfn;
1.1282 raeburn 12428: if (defined($env{$cache_str})) {
12429: if ($ignorecachednull) {
12430: return $env{$cache_str} unless ($env{$cache_str} eq '');
12431: } else {
12432: return $env{$cache_str};
12433: }
12434: }
1.242 www 12435: # no filename provided? try from environment
1.1265 raeburn 12436: unless ($thisfn) {
1.620 albertel 12437: if ($env{'request.symb'}) {
12438: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 12439: }
1.620 albertel 12440: $thisfn=$env{'request.filename'};
1.44 www 12441: }
1.569 albertel 12442: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 12443: # is that filename actually a symb? Verify, clean, and return
12444: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 12445: if (&symbverify($thisfn,$1)) {
1.620 albertel 12446: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 12447: }
1.242 www 12448: }
1.44 www 12449: $thisfn=declutter($thisfn);
1.31 www 12450: my %hash;
1.37 www 12451: my %bighash;
12452: my $syval='';
1.620 albertel 12453: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 12454: my $targetfn = $thisfn;
1.609 banghart 12455: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 12456: $targetfn = 'adm/wrapper/'.$thisfn;
12457: }
1.687 albertel 12458: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
12459: $targetfn=$1;
12460: }
1.620 albertel 12461: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 12462: &GDBM_READER(),0640)) {
1.481 raeburn 12463: $syval=$hash{$targetfn};
1.37 www 12464: untie(%hash);
12465: }
12466: # ---------------------------------------------------------- There was an entry
12467: if ($syval) {
1.601 albertel 12468: #unless ($syval=~/\_\d+$/) {
1.620 albertel 12469: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 12470: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 12471: #return $env{$cache_str}='';
1.601 albertel 12472: #}
12473: #$syval.=$1;
12474: #}
1.37 www 12475: } else {
12476: # ------------------------------------------------------- Was not in symb table
1.620 albertel 12477: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 12478: &GDBM_READER(),0640)) {
1.37 www 12479: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 12480: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 12481: unless ($ids) {
12482: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 12483: }
12484: unless ($ids) {
12485: # alias?
12486: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 12487: }
1.37 www 12488: if ($ids) {
12489: # ------------------------------------------------------------------- Has ID(s)
12490: my @possibilities=split(/\,/,$ids);
1.39 www 12491: if ($#possibilities==0) {
12492: # ----------------------------------------------- There is only one possibility
1.37 www 12493: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 12494: $syval=&encode_symb($bighash{'map_id_'.$mapid},
12495: $resid,$thisfn);
1.1282 raeburn 12496: if (ref($possibles) eq 'HASH') {
12497: $possibles->{$syval} = 1;
12498: }
12499: if ($checkforblock) {
12500: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids});
12501: if (@blockers) {
12502: $syval = '';
12503: return;
12504: }
12505: }
12506: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
1.39 www 12507: # ------------------------------------------ There is more than one possibility
12508: my $realpossible=0;
1.800 albertel 12509: foreach my $id (@possibilities) {
12510: my $file=$bighash{'src_'.$id};
1.1282 raeburn 12511: my $canaccess;
12512: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
12513: $canaccess = 1;
12514: } else {
12515: $canaccess = &allowed('bre',$file);
12516: }
12517: if ($canaccess) {
12518: my ($mapid,$resid)=split(/\./,$id);
12519: if ($bighash{'map_type_'.$mapid} ne 'page') {
12520: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
12521: $resid,$thisfn);
12522: if (ref($possibles) eq 'HASH') {
12523: $possibles->{$syval} = 1;
12524: }
12525: if ($checkforblock) {
12526: my @blockers = &has_comm_blocking('bre',$poss_syval,$file);
12527: unless (@blockers > 0) {
12528: $syval = $poss_syval;
12529: $realpossible++;
12530: }
12531: } else {
12532: $syval = $poss_syval;
12533: $realpossible++;
12534: }
12535: }
1.39 www 12536: }
1.191 harris41 12537: }
1.39 www 12538: if ($realpossible!=1) { $syval=''; }
1.249 www 12539: } else {
12540: $syval='';
1.37 www 12541: }
12542: }
1.1282 raeburn 12543: untie(%bighash);
1.481 raeburn 12544: }
1.31 www 12545: }
1.62 www 12546: if ($syval) {
1.620 albertel 12547: return $env{$cache_str}=$syval;
1.62 www 12548: }
1.31 www 12549: }
1.949 raeburn 12550: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 12551: return $env{$cache_str}='';
1.31 www 12552: }
12553:
12554: # ---------------------------------------------------------- Return random seed
12555:
1.32 www 12556: sub numval {
12557: my $txt=shift;
12558: $txt=~tr/A-J/0-9/;
12559: $txt=~tr/a-j/0-9/;
12560: $txt=~tr/K-T/0-9/;
12561: $txt=~tr/k-t/0-9/;
12562: $txt=~tr/U-Z/0-5/;
12563: $txt=~tr/u-z/0-5/;
12564: $txt=~s/\D//g;
1.564 albertel 12565: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 12566: return int($txt);
1.368 albertel 12567: }
12568:
1.484 albertel 12569: sub numval2 {
12570: my $txt=shift;
12571: $txt=~tr/A-J/0-9/;
12572: $txt=~tr/a-j/0-9/;
12573: $txt=~tr/K-T/0-9/;
12574: $txt=~tr/k-t/0-9/;
12575: $txt=~tr/U-Z/0-5/;
12576: $txt=~tr/u-z/0-5/;
12577: $txt=~s/\D//g;
12578: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
12579: my $total;
12580: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 12581: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 12582: return int($total);
12583: }
12584:
1.575 albertel 12585: sub numval3 {
12586: use integer;
12587: my $txt=shift;
12588: $txt=~tr/A-J/0-9/;
12589: $txt=~tr/a-j/0-9/;
12590: $txt=~tr/K-T/0-9/;
12591: $txt=~tr/k-t/0-9/;
12592: $txt=~tr/U-Z/0-5/;
12593: $txt=~tr/u-z/0-5/;
12594: $txt=~s/\D//g;
12595: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
12596: my $total;
12597: foreach my $val (@txts) { $total+=$val; }
12598: if ($_64bit) { $total=(($total<<32)>>32); }
12599: return $total;
12600: }
12601:
1.675 albertel 12602: sub digest {
12603: my ($data)=@_;
12604: my $digest=&Digest::MD5::md5($data);
12605: my ($a,$b,$c,$d)=unpack("iiii",$digest);
12606: my ($e,$f);
12607: {
12608: use integer;
12609: $e=($a+$b);
12610: $f=($c+$d);
12611: if ($_64bit) {
12612: $e=(($e<<32)>>32);
12613: $f=(($f<<32)>>32);
12614: }
12615: }
12616: if (wantarray) {
12617: return ($e,$f);
12618: } else {
12619: my $g;
12620: {
12621: use integer;
12622: $g=($e+$f);
12623: if ($_64bit) {
12624: $g=(($g<<32)>>32);
12625: }
12626: }
12627: return $g;
12628: }
12629: }
12630:
1.368 albertel 12631: sub latest_rnd_algorithm_id {
1.675 albertel 12632: return '64bit5';
1.366 albertel 12633: }
1.32 www 12634:
1.503 albertel 12635: sub get_rand_alg {
12636: my ($courseid)=@_;
1.790 albertel 12637: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 12638: if ($courseid) {
1.620 albertel 12639: return $env{"course.$courseid.rndseed"};
1.503 albertel 12640: }
12641: return &latest_rnd_algorithm_id();
12642: }
12643:
1.562 albertel 12644: sub validCODE {
12645: my ($CODE)=@_;
12646: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
12647: return 0;
12648: }
12649:
1.491 albertel 12650: sub getCODE {
1.620 albertel 12651: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 12652: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
12653: defined($Apache::lonhomework::parsing_a_task) ) &&
12654: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 12655: return $Apache::lonhomework::history{'resource.CODE'};
12656: }
12657: return undef;
12658: }
1.1133 foxr 12659: #
12660: # Determines the random seed for a specific context:
12661: #
12662: # parameters:
12663: # symb - in course context the symb for the seed.
12664: # course_id - The course id of the form domain_coursenum.
12665: # domain - Domain for the user.
12666: # course - Course for the user.
12667: # cenv - environment of the course.
12668: #
12669: # NOTE:
12670: # All parameters are picked out of the environment if missing
12671: # or not defined.
12672: # If a symb cannot be determined the current time is used instead.
12673: #
12674: # For a given well defined symb, courside, domain, username,
12675: # and course environment, the seed is reproducible.
12676: #
1.31 www 12677: sub rndseed {
1.1133 foxr 12678: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 12679: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 12680: if (!defined($symb)) {
1.366 albertel 12681: unless ($symb=$wsymb) { return time; }
12682: }
1.1146 foxr 12683: if (!defined $courseid) {
12684: $courseid=$wcourseid;
12685: }
12686: if (!defined $domain) { $domain=$wdomain; }
12687: if (!defined $username) { $username=$wusername }
1.1133 foxr 12688:
12689: my $which;
12690: if (defined($cenv->{'rndseed'})) {
12691: $which = $cenv->{'rndseed'};
12692: } else {
12693: $which =&get_rand_alg($courseid);
12694: }
1.491 albertel 12695: if (defined(&getCODE())) {
1.1133 foxr 12696:
1.675 albertel 12697: if ($which eq '64bit5') {
12698: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
12699: } elsif ($which eq '64bit4') {
1.575 albertel 12700: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
12701: } else {
12702: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
12703: }
1.675 albertel 12704: } elsif ($which eq '64bit5') {
12705: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 12706: } elsif ($which eq '64bit4') {
12707: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 12708: } elsif ($which eq '64bit3') {
12709: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 12710: } elsif ($which eq '64bit2') {
12711: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 12712: } elsif ($which eq '64bit') {
12713: return &rndseed_64bit($symb,$courseid,$domain,$username);
12714: }
12715: return &rndseed_32bit($symb,$courseid,$domain,$username);
12716: }
12717:
12718: sub rndseed_32bit {
12719: my ($symb,$courseid,$domain,$username)=@_;
12720: {
12721: use integer;
12722: my $symbchck=unpack("%32C*",$symb) << 27;
12723: my $symbseed=numval($symb) << 22;
12724: my $namechck=unpack("%32C*",$username) << 17;
12725: my $nameseed=numval($username) << 12;
12726: my $domainseed=unpack("%32C*",$domain) << 7;
12727: my $courseseed=unpack("%32C*",$courseid);
12728: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 12729: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12730: #&logthis("rndseed :$num:$symb");
1.564 albertel 12731: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 12732: return $num;
12733: }
12734: }
12735:
12736: sub rndseed_64bit {
12737: my ($symb,$courseid,$domain,$username)=@_;
12738: {
12739: use integer;
12740: my $symbchck=unpack("%32S*",$symb) << 21;
12741: my $symbseed=numval($symb) << 10;
12742: my $namechck=unpack("%32S*",$username);
12743:
12744: my $nameseed=numval($username) << 21;
12745: my $domainseed=unpack("%32S*",$domain) << 10;
12746: my $courseseed=unpack("%32S*",$courseid);
12747:
12748: my $num1=$symbchck+$symbseed+$namechck;
12749: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12750: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12751: #&logthis("rndseed :$num:$symb");
1.564 albertel 12752: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 12753: return "$num1,$num2";
1.155 albertel 12754: }
1.366 albertel 12755: }
12756:
1.443 albertel 12757: sub rndseed_64bit2 {
12758: my ($symb,$courseid,$domain,$username)=@_;
12759: {
12760: use integer;
12761: # strings need to be an even # of cahracters long, it it is odd the
12762: # last characters gets thrown away
12763: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12764: my $symbseed=numval($symb) << 10;
12765: my $namechck=unpack("%32S*",$username.' ');
12766:
12767: my $nameseed=numval($username) << 21;
1.501 albertel 12768: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12769: my $courseseed=unpack("%32S*",$courseid.' ');
12770:
12771: my $num1=$symbchck+$symbseed+$namechck;
12772: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12773: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12774: #&logthis("rndseed :$num:$symb");
1.803 albertel 12775: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 12776: return "$num1,$num2";
12777: }
12778: }
12779:
12780: sub rndseed_64bit3 {
12781: my ($symb,$courseid,$domain,$username)=@_;
12782: {
12783: use integer;
12784: # strings need to be an even # of cahracters long, it it is odd the
12785: # last characters gets thrown away
12786: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12787: my $symbseed=numval2($symb) << 10;
12788: my $namechck=unpack("%32S*",$username.' ');
12789:
12790: my $nameseed=numval2($username) << 21;
1.443 albertel 12791: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12792: my $courseseed=unpack("%32S*",$courseid.' ');
12793:
12794: my $num1=$symbchck+$symbseed+$namechck;
12795: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12796: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12797: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 12798: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12799:
1.503 albertel 12800: return "$num1:$num2";
1.443 albertel 12801: }
12802: }
12803:
1.575 albertel 12804: sub rndseed_64bit4 {
12805: my ($symb,$courseid,$domain,$username)=@_;
12806: {
12807: use integer;
12808: # strings need to be an even # of cahracters long, it it is odd the
12809: # last characters gets thrown away
12810: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12811: my $symbseed=numval3($symb) << 10;
12812: my $namechck=unpack("%32S*",$username.' ');
12813:
12814: my $nameseed=numval3($username) << 21;
12815: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12816: my $courseseed=unpack("%32S*",$courseid.' ');
12817:
12818: my $num1=$symbchck+$symbseed+$namechck;
12819: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12820: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12821: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 12822: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12823:
1.575 albertel 12824: return "$num1:$num2";
12825: }
12826: }
12827:
1.675 albertel 12828: sub rndseed_64bit5 {
12829: my ($symb,$courseid,$domain,$username)=@_;
12830: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
12831: return "$num1:$num2";
12832: }
12833:
1.366 albertel 12834: sub rndseed_CODE_64bit {
12835: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 12836: {
1.366 albertel 12837: use integer;
1.443 albertel 12838: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 12839: my $symbseed=numval2($symb);
1.491 albertel 12840: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12841: my $CODEseed=numval(&getCODE());
1.443 albertel 12842: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 12843: my $num1=$symbseed+$CODEchck;
12844: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12845: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12846: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 12847: if ($_64bit) { $num1=(($num1<<32)>>32); }
12848: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 12849: return "$num1:$num2";
1.366 albertel 12850: }
12851: }
12852:
1.575 albertel 12853: sub rndseed_CODE_64bit4 {
12854: my ($symb,$courseid,$domain,$username)=@_;
12855: {
12856: use integer;
12857: my $symbchck=unpack("%32S*",$symb.' ') << 16;
12858: my $symbseed=numval3($symb);
12859: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12860: my $CODEseed=numval3(&getCODE());
12861: my $courseseed=unpack("%32S*",$courseid.' ');
12862: my $num1=$symbseed+$CODEchck;
12863: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12864: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12865: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 12866: if ($_64bit) { $num1=(($num1<<32)>>32); }
12867: if ($_64bit) { $num2=(($num2<<32)>>32); }
12868: return "$num1:$num2";
12869: }
12870: }
12871:
1.675 albertel 12872: sub rndseed_CODE_64bit5 {
12873: my ($symb,$courseid,$domain,$username)=@_;
12874: my $code = &getCODE();
12875: my ($num1,$num2)=&digest("$symb,$courseid,$code");
12876: return "$num1:$num2";
12877: }
12878:
1.366 albertel 12879: sub setup_random_from_rndseed {
12880: my ($rndseed)=@_;
1.503 albertel 12881: if ($rndseed =~/([,:])/) {
1.1262 raeburn 12882: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
12883: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
12884: &Math::Random::random_set_seed_from_phrase($rndseed);
12885: } else {
12886: &Math::Random::random_set_seed($num1,$num2);
12887: }
1.366 albertel 12888: } else {
12889: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 12890: }
1.36 albertel 12891: }
12892:
1.474 albertel 12893: sub latest_receipt_algorithm_id {
1.835 albertel 12894: return 'receipt3';
1.474 albertel 12895: }
12896:
1.480 www 12897: sub recunique {
12898: my $fucourseid=shift;
12899: my $unique;
1.835 albertel 12900: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
12901: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12902: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 12903: } else {
12904: $unique=$perlvar{'lonReceipt'};
12905: }
12906: return unpack("%32C*",$unique);
12907: }
12908:
12909: sub recprefix {
12910: my $fucourseid=shift;
12911: my $prefix;
1.835 albertel 12912: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
12913: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12914: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 12915: } else {
12916: $prefix=$perlvar{'lonHostID'};
12917: }
12918: return unpack("%32C*",$prefix);
12919: }
12920:
1.76 www 12921: sub ireceipt {
1.474 albertel 12922: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 12923:
12924: my $return =&recprefix($fucourseid).'-';
12925:
12926: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
12927: $env{'request.state'} eq 'construct') {
12928: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
12929: return $return;
12930: }
12931:
1.76 www 12932: my $cuname=unpack("%32C*",$funame);
12933: my $cudom=unpack("%32C*",$fudom);
12934: my $cucourseid=unpack("%32C*",$fucourseid);
12935: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 12936: my $cunique=&recunique($fucourseid);
1.474 albertel 12937: my $cpart=unpack("%32S*",$part);
1.835 albertel 12938: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
12939:
1.790 albertel 12940: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 12941:
12942: $return.= ($cunique%$cuname+
12943: $cunique%$cudom+
12944: $cusymb%$cuname+
12945: $cusymb%$cudom+
12946: $cucourseid%$cuname+
12947: $cucourseid%$cudom+
12948: $cpart%$cuname+
12949: $cpart%$cudom);
12950: } else {
12951: $return.= ($cunique%$cuname+
12952: $cunique%$cudom+
12953: $cusymb%$cuname+
12954: $cusymb%$cudom+
12955: $cucourseid%$cuname+
12956: $cucourseid%$cudom);
12957: }
12958: return $return;
1.76 www 12959: }
12960:
12961: sub receipt {
1.474 albertel 12962: my ($part)=@_;
1.790 albertel 12963: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 12964: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 12965: }
1.260 ng 12966:
1.790 albertel 12967: sub whichuser {
12968: my ($passedsymb)=@_;
12969: my ($symb,$courseid,$domain,$name,$publicuser);
12970: if (defined($env{'form.grade_symb'})) {
12971: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
12972: my $allowed=&allowed('vgr',$tmp_courseid);
12973: if (!$allowed &&
12974: exists($env{'request.course.sec'}) &&
12975: $env{'request.course.sec'} !~ /^\s*$/) {
12976: $allowed=&allowed('vgr',$tmp_courseid.
12977: '/'.$env{'request.course.sec'});
12978: }
12979: if ($allowed) {
12980: ($symb)=&get_env_multiple('form.grade_symb');
12981: $courseid=$tmp_courseid;
12982: ($domain)=&get_env_multiple('form.grade_domain');
12983: ($name)=&get_env_multiple('form.grade_username');
12984: return ($symb,$courseid,$domain,$name,$publicuser);
12985: }
12986: }
12987: if (!$passedsymb) {
12988: $symb=&symbread();
12989: } else {
12990: $symb=$passedsymb;
12991: }
12992: $courseid=$env{'request.course.id'};
12993: $domain=$env{'user.domain'};
12994: $name=$env{'user.name'};
12995: if ($name eq 'public' && $domain eq 'public') {
12996: if (!defined($env{'form.username'})) {
12997: $env{'form.username'}.=time.rand(10000000);
12998: }
12999: $name.=$env{'form.username'};
13000: }
13001: return ($symb,$courseid,$domain,$name,$publicuser);
13002:
13003: }
13004:
1.36 albertel 13005: # ------------------------------------------------------------ Serves up a file
1.472 albertel 13006: # returns either the contents of the file or
13007: # -1 if the file doesn't exist
1.481 raeburn 13008: #
13009: # if the target is a file that was uploaded via DOCS,
13010: # a check will be made to see if a current copy exists on the local server,
13011: # if it does this will be served, otherwise a copy will be retrieved from
13012: # the home server for the course and stored in /home/httpd/html/userfiles on
13013: # the local server.
1.472 albertel 13014:
1.36 albertel 13015: sub getfile {
1.538 albertel 13016: my ($file) = @_;
1.609 banghart 13017: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 13018: &repcopy($file);
13019: return &readfile($file);
13020: }
13021:
13022: sub repcopy_userfile {
13023: my ($file)=@_;
1.1142 raeburn 13024: my $londocroot = $perlvar{'lonDocRoot'};
13025: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 13026: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 13027: my ($cdom,$cnum,$filename) =
1.811 albertel 13028: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 13029: my $uri="/uploaded/$cdom/$cnum/$filename";
13030: if (-e "$file") {
1.828 www 13031: # we already have a local copy, check it out
1.538 albertel 13032: my @fileinfo = stat($file);
1.828 www 13033: my $rtncode;
13034: my $info;
1.538 albertel 13035: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 13036: if ($lwpresp ne 'ok') {
1.828 www 13037: # there is no such file anymore, even though we had a local copy
1.482 albertel 13038: if ($rtncode eq '404') {
1.538 albertel 13039: unlink($file);
1.482 albertel 13040: }
13041: return -1;
13042: }
13043: if ($info < $fileinfo[9]) {
1.828 www 13044: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 13045: return 'ok';
1.828 www 13046: } else {
13047: # the file is outdated, get rid of it
13048: unlink($file);
1.482 albertel 13049: }
1.828 www 13050: }
13051: # one way or the other, at this point, we don't have the file
13052: # construct the correct path for the file
13053: my @parts = ($cdom,$cnum);
13054: if ($filename =~ m|^(.+)/[^/]+$|) {
13055: push @parts, split(/\//,$1);
13056: }
13057: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
13058: foreach my $part (@parts) {
13059: $path .= '/'.$part;
13060: if (!-e $path) {
13061: mkdir($path,0770);
1.482 albertel 13062: }
13063: }
1.828 www 13064: # now the path exists for sure
13065: # get a user agent
13066: my $transferfile=$file.'.in.transfer';
13067: # FIXME: this should flock
13068: if (-e $transferfile) { return 'ok'; }
13069: my $request;
13070: $uri=~s/^\///;
1.980 raeburn 13071: my $homeserver = &homeserver($cnum,$cdom);
13072: my $protocol = $protocol{$homeserver};
13073: $protocol = 'http' if ($protocol ne 'https');
13074: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.1345 raeburn 13075: my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1);
1.828 www 13076: # did it work?
13077: if ($response->is_error()) {
13078: unlink($transferfile);
13079: &logthis("Userfile repcopy failed for $uri");
13080: return -1;
13081: }
13082: # worked, rename the transfer file
13083: rename($transferfile,$file);
1.607 raeburn 13084: return 'ok';
1.481 raeburn 13085: }
13086:
1.517 albertel 13087: sub tokenwrapper {
13088: my $uri=shift;
1.980 raeburn 13089: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 13090: $uri=~s|^/||;
1.620 albertel 13091: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 13092: my $token=$1;
1.552 albertel 13093: my (undef,$udom,$uname,$file)=split('/',$uri,4);
13094: if ($udom && $uname && $file) {
13095: $file=~s|(\?\.*)*$||;
1.949 raeburn 13096: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 13097: my $homeserver = &homeserver($uname,$udom);
13098: my $protocol = $protocol{$homeserver};
13099: $protocol = 'http' if ($protocol ne 'https');
13100: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 13101: (($uri=~/\?/)?'&':'?').'token='.$token.
13102: '&tokenissued='.$perlvar{'lonHostID'};
13103: } else {
13104: return '/adm/notfound.html';
13105: }
13106: }
13107:
1.828 www 13108: # call with reqtype HEAD: get last modification time
13109: # call with reqtype GET: get the file contents
13110: # Do not call this with reqtype GET for large files! It loads everything into memory
13111: #
1.481 raeburn 13112: sub getuploaded {
13113: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
13114: $uri=~s/^\///;
1.980 raeburn 13115: my $homeserver = &homeserver($cnum,$cdom);
13116: my $protocol = $protocol{$homeserver};
13117: $protocol = 'http' if ($protocol ne 'https');
13118: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 13119: my $request=new HTTP::Request($reqtype,$uri);
1.1345 raeburn 13120: my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1);
1.481 raeburn 13121: $$rtncode = $response->code;
1.482 albertel 13122: if (! $response->is_success()) {
13123: return 'failed';
13124: }
13125: if ($reqtype eq 'HEAD') {
1.486 www 13126: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 13127: } elsif ($reqtype eq 'GET') {
13128: $$info = $response->content;
1.472 albertel 13129: }
1.482 albertel 13130: return 'ok';
1.36 albertel 13131: }
13132:
1.481 raeburn 13133: sub readfile {
13134: my $file = shift;
13135: if ( (! -e $file ) || ($file eq '') ) { return -1; };
13136: my $fh;
1.1359 raeburn 13137: open($fh,"<",$file);
1.481 raeburn 13138: my $a='';
1.800 albertel 13139: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 13140: return $a;
13141: }
13142:
1.36 albertel 13143: sub filelocation {
1.590 banghart 13144: my ($dir,$file) = @_;
13145: my $location;
13146: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 13147:
13148: if ($file =~ m-^/adm/-) {
13149: $file=~s-^/adm/wrapper/-/-;
13150: $file=~s-^/adm/coursedocs/showdoc/-/-;
13151: }
1.882 albertel 13152:
1.1139 www 13153: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 13154: $location = $file;
1.609 banghart 13155: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 13156: my ($udom,$uname,$filename)=
1.811 albertel 13157: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 13158: my $home=&homeserver($uname,$udom);
13159: my $is_me=0;
13160: my @ids=¤t_machine_ids();
13161: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
13162: if ($is_me) {
1.1117 foxr 13163: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 13164: } else {
13165: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
13166: $udom.'/'.$uname.'/'.$filename;
13167: }
1.882 albertel 13168: } elsif ($file =~ m-^/adm/-) {
13169: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 13170: } else {
13171: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 13172: $file=~s:^/(res|priv)/:/:;
13173: my $space=$1;
1.590 banghart 13174: if ( !( $file =~ m:^/:) ) {
13175: $location = $dir. '/'.$file;
13176: } else {
1.1142 raeburn 13177: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 13178: }
1.59 albertel 13179: }
1.590 banghart 13180: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 13181: while ($location=~m{/\.\./}) {
13182: if ($location =~ m{/[^/]+/\.\./}) {
13183: $location=~ s{/[^/]+/\.\./}{/}g;
13184: } else {
13185: $location=~ s{/\.\./}{/}g;
13186: }
13187: } #remove dir/..
1.590 banghart 13188: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
13189: return $location;
1.46 www 13190: }
1.36 albertel 13191:
1.46 www 13192: sub hreflocation {
13193: my ($dir,$file)=@_;
1.980 raeburn 13194: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 13195: $file=filelocation($dir,$file);
1.700 albertel 13196: } elsif ($file=~m-^/adm/-) {
13197: $file=~s-^/adm/wrapper/-/-;
13198: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 13199: }
13200: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
13201: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
13202: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 13203: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
13204: {/uploaded/$1/$2/}x;
1.46 www 13205: }
1.913 albertel 13206: if ($file=~ m{^/userfiles/}) {
13207: $file =~ s{^/userfiles/}{/uploaded/};
13208: }
1.462 albertel 13209: return $file;
1.465 albertel 13210: }
13211:
1.1139 www 13212:
13213:
13214:
13215:
1.465 albertel 13216: sub current_machine_domains {
1.853 albertel 13217: return &machine_domains(&hostname($perlvar{'lonHostID'}));
13218: }
13219:
13220: sub machine_domains {
13221: my ($hostname) = @_;
1.465 albertel 13222: my @domains;
1.838 albertel 13223: my %hostname = &all_hostnames();
1.465 albertel 13224: while( my($id, $name) = each(%hostname)) {
1.467 matthew 13225: # &logthis("-$id-$name-$hostname-");
1.465 albertel 13226: if ($hostname eq $name) {
1.844 albertel 13227: push(@domains,&host_domain($id));
1.465 albertel 13228: }
13229: }
13230: return @domains;
13231: }
13232:
13233: sub current_machine_ids {
1.853 albertel 13234: return &machine_ids(&hostname($perlvar{'lonHostID'}));
13235: }
13236:
13237: sub machine_ids {
13238: my ($hostname) = @_;
13239: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 13240: my @ids;
1.888 albertel 13241: my %name_to_host = &all_names();
1.889 albertel 13242: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
13243: return @{ $name_to_host{$hostname} };
13244: }
13245: return;
1.31 www 13246: }
13247:
1.824 raeburn 13248: sub additional_machine_domains {
13249: my @domains;
1.1359 raeburn 13250: open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab");
1.824 raeburn 13251: while( my $line = <$fh>) {
13252: $line =~ s/\s//g;
13253: push(@domains,$line);
13254: }
13255: return @domains;
13256: }
13257:
13258: sub default_login_domain {
13259: my $domain = $perlvar{'lonDefDomain'};
13260: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
13261: foreach my $posdom (¤t_machine_domains(),
13262: &additional_machine_domains()) {
13263: if (lc($posdom) eq lc($testdomain)) {
13264: $domain=$posdom;
13265: last;
13266: }
13267: }
13268: return $domain;
13269: }
13270:
1.31 www 13271: # ------------------------------------------------------------- Declutters URLs
13272:
13273: sub declutter {
13274: my $thisfn=shift;
1.569 albertel 13275: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.1261 raeburn 13276: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
13277: $thisfn=~s{^/home/httpd/html}{};
13278: }
1.31 www 13279: $thisfn=~s/^\///;
1.697 albertel 13280: $thisfn=~s|^adm/wrapper/||;
13281: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 13282: $thisfn=~s/^res\///;
1.1172 bisitz 13283: $thisfn=~s/^priv\///;
1.1032 raeburn 13284: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
13285: $thisfn=~s/\?.+$//;
13286: }
1.268 www 13287: return $thisfn;
13288: }
13289:
13290: # ------------------------------------------------------------- Clutter up URLs
13291:
13292: sub clutter {
13293: my $thisfn='/'.&declutter(shift);
1.887 albertel 13294: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 13295: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 13296: $thisfn='/res'.$thisfn;
13297: }
1.1031 raeburn 13298: if ($thisfn !~m|^/adm|) {
13299: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 13300: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 13301: } else {
13302: my ($ext) = ($thisfn =~ /\.(\w+)$/);
13303: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 13304: if ($embstyle eq 'ssi'
13305: || ($embstyle eq 'hdn')
13306: || ($embstyle eq 'rat')
13307: || ($embstyle eq 'prv')
13308: || ($embstyle eq 'ign')) {
13309: #do nothing with these
13310: } elsif (($embstyle eq 'img')
1.695 albertel 13311: || ($embstyle eq 'emb')
13312: || ($embstyle eq 'wrp')) {
13313: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 13314: } elsif ($embstyle eq 'unk'
13315: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 13316: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 13317: } else {
1.718 www 13318: # &logthis("Got a blank emb style");
1.695 albertel 13319: }
1.694 albertel 13320: }
1.1343 raeburn 13321: } elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) {
1.1298 raeburn 13322: $thisfn='/adm/wrapper'.$thisfn;
1.694 albertel 13323: }
1.31 www 13324: return $thisfn;
1.12 www 13325: }
13326:
1.787 albertel 13327: sub clutter_with_no_wrapper {
13328: my $uri = &clutter(shift);
13329: if ($uri =~ m-^/adm/-) {
13330: $uri =~ s-^/adm/wrapper/-/-;
13331: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
13332: }
13333: return $uri;
13334: }
13335:
1.557 albertel 13336: sub freeze_escape {
13337: my ($value)=@_;
13338: if (ref($value)) {
13339: $value=&nfreeze($value);
13340: return '__FROZEN__'.&escape($value);
13341: }
13342: return &escape($value);
13343: }
13344:
1.11 www 13345:
1.557 albertel 13346: sub thaw_unescape {
13347: my ($value)=@_;
13348: if ($value =~ /^__FROZEN__/) {
13349: substr($value,0,10,undef);
13350: $value=&unescape($value);
13351: return &thaw($value);
13352: }
13353: return &unescape($value);
13354: }
13355:
1.436 albertel 13356: sub correct_line_ends {
13357: my ($result)=@_;
13358: $$result =~s/\r\n/\n/mg;
13359: $$result =~s/\r/\n/mg;
1.415 albertel 13360: }
1.1 albertel 13361: # ================================================================ Main Program
13362:
1.184 www 13363: sub goodbye {
1.204 albertel 13364: &logthis("Starting Shut down");
1.443 albertel 13365: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 13366: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 13367: #converted
1.599 albertel 13368: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 13369: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
13370: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
13371: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 13372: #1.1 only
1.870 albertel 13373: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
13374: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
13375: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
13376: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
13377: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 13378: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
13379: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 13380: &flushcourselogs();
13381: &logthis("Shutting down");
13382: }
13383:
1.852 albertel 13384: sub get_dns {
1.1210 raeburn 13385: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 13386: if (!$ignore_cache) {
13387: my ($content,$cached)=
13388: &Apache::lonnet::is_cached_new('dns',$url);
13389: if ($cached) {
1.1210 raeburn 13390: &$func($content,$hashref);
1.869 albertel 13391: return;
13392: }
13393: }
13394:
13395: my %alldns;
1.1359 raeburn 13396: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
1.852 albertel 13397: foreach my $dns (<$config>) {
13398: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 13399: my $line = $1;
13400: my ($host,$protocol) = split(/:/,$line);
13401: if ($protocol ne 'https') {
13402: $protocol = 'http';
13403: }
13404: $alldns{$host} = $protocol;
1.869 albertel 13405: }
13406: while (%alldns) {
1.1263 raeburn 13407: my ($dns) = sort { $b cmp $a } keys(%alldns);
1.979 raeburn 13408: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.1345 raeburn 13409: my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0);
1.979 raeburn 13410: delete($alldns{$dns});
1.852 albertel 13411: next if ($response->is_error());
13412: my @content = split("\n",$response->content);
1.1210 raeburn 13413: unless ($nocache) {
1.1219 raeburn 13414: &do_cache_new('dns',$url,\@content,30*24*60*60);
1.1210 raeburn 13415: }
13416: &$func(\@content,$hashref);
1.869 albertel 13417: return;
1.852 albertel 13418: }
13419: close($config);
1.871 albertel 13420: my $which = (split('/',$url))[3];
13421: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
1.1359 raeburn 13422: open($config,"<","$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 13423: my @content = <$config>;
1.1210 raeburn 13424: &$func(\@content,$hashref);
13425: return;
13426: }
13427:
13428: # ------------------------------------------------------Get DNS checksums file
1.1211 raeburn 13429: sub parse_dns_checksums_tab {
1.1210 raeburn 13430: my ($lines,$hashref) = @_;
1.1264 raeburn 13431: my $lonhost = $perlvar{'lonHostID'};
13432: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
1.1210 raeburn 13433: my $loncaparev = &get_server_loncaparev($machine_dom);
1.1264 raeburn 13434: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
13435: my $webconfdir = '/etc/httpd/conf';
13436: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
13437: $webconfdir = '/etc/apache2';
13438: } elsif ($distro =~ /^sles(\d+)$/) {
13439: if ($1 >= 10) {
13440: $webconfdir = '/etc/apache2';
13441: }
13442: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
13443: if ($1 >= 10.0) {
13444: $webconfdir = '/etc/apache2';
13445: }
13446: }
1.1210 raeburn 13447: my ($release,$timestamp) = split(/\-/,$loncaparev);
13448: my (%chksum,%revnum);
13449: if (ref($lines) eq 'ARRAY') {
13450: chomp(@{$lines});
1.1238 raeburn 13451: my $version = shift(@{$lines});
13452: if ($version eq $release) {
1.1210 raeburn 13453: foreach my $line (@{$lines}) {
1.1238 raeburn 13454: my ($file,$version,$shasum) = split(/,/,$line);
1.1264 raeburn 13455: if ($file =~ m{^/etc/httpd/conf}) {
13456: if ($webconfdir eq '/etc/apache2') {
13457: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
13458: }
13459: }
1.1238 raeburn 13460: $chksum{$file} = $shasum;
13461: $revnum{$file} = $version;
1.1210 raeburn 13462: }
13463: if (ref($hashref) eq 'HASH') {
13464: %{$hashref} = (
13465: sums => \%chksum,
13466: versions => \%revnum,
13467: );
13468: }
13469: }
13470: }
1.869 albertel 13471: return;
1.852 albertel 13472: }
1.1210 raeburn 13473:
13474: sub fetch_dns_checksums {
1.1238 raeburn 13475: my %checksums;
13476: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
1.1260 raeburn 13477: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
1.1238 raeburn 13478: my ($release,$timestamp) = split(/\-/,$loncaparev);
13479: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
1.1211 raeburn 13480: \%checksums);
1.1210 raeburn 13481: return \%checksums;
13482: }
13483:
1.327 albertel 13484: # ------------------------------------------------------------ Read domain file
13485: {
1.852 albertel 13486: my $loaded;
1.846 albertel 13487: my %domain;
13488:
1.852 albertel 13489: sub parse_domain_tab {
13490: my ($lines) = @_;
13491: foreach my $line (@$lines) {
13492: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 13493:
1.846 albertel 13494: chomp($line);
1.852 albertel 13495: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 13496: my %this_domain;
13497: foreach my $field ('description', 'auth_def', 'auth_arg_def',
13498: 'lang_def', 'city', 'longi', 'lati',
13499: 'primary') {
13500: $this_domain{$field} = shift(@elements);
13501: }
13502: $domain{$name} = \%this_domain;
1.852 albertel 13503: }
13504: }
1.864 albertel 13505:
13506: sub reset_domain_info {
13507: undef($loaded);
13508: undef(%domain);
13509: }
13510:
1.852 albertel 13511: sub load_domain_tab {
1.1293 raeburn 13512: my ($ignore_cache,$nocache) = @_;
13513: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
1.852 albertel 13514: my $fh;
1.1359 raeburn 13515: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {
1.852 albertel 13516: my @lines = <$fh>;
13517: &parse_domain_tab(\@lines);
1.448 albertel 13518: }
1.852 albertel 13519: close($fh);
13520: $loaded = 1;
1.327 albertel 13521: }
1.846 albertel 13522:
13523: sub domain {
1.852 albertel 13524: &load_domain_tab() if (!$loaded);
13525:
1.846 albertel 13526: my ($name,$what) = @_;
13527: return if ( !exists($domain{$name}) );
13528:
13529: if (!$what) {
13530: return $domain{$name}{'description'};
13531: }
13532: return $domain{$name}{$what};
13533: }
1.974 raeburn 13534:
13535: sub domain_info {
13536: &load_domain_tab() if (!$loaded);
13537: return %domain;
13538: }
13539:
1.327 albertel 13540: }
13541:
13542:
1.1 albertel 13543: # ------------------------------------------------------------- Read hosts file
13544: {
1.838 albertel 13545: my %hostname;
1.844 albertel 13546: my %hostdom;
1.845 albertel 13547: my %libserv;
1.852 albertel 13548: my $loaded;
1.888 albertel 13549: my %name_to_host;
1.1074 raeburn 13550: my %internetdom;
1.1107 raeburn 13551: my %LC_dns_serv;
1.852 albertel 13552:
13553: sub parse_hosts_tab {
13554: my ($file) = @_;
13555: foreach my $configline (@$file) {
13556: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 13557: chomp($configline);
13558: if ($configline =~ /^\^/) {
13559: if ($configline =~ /^\^([\w.\-]+)/) {
13560: $LC_dns_serv{$1} = 1;
13561: }
13562: next;
13563: }
1.1074 raeburn 13564: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 13565: $name=~s/\s//g;
13566: if ($id && $domain && $role && $name) {
1.1351 raeburn 13567: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
13568: my $curr = $hostname{$id};
13569: my $skip;
13570: if (ref($name_to_host{$curr}) eq 'ARRAY') {
13571: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
13572: $skip = 1;
13573: } else {
13574: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
13575: }
13576: }
13577: unless ($skip) {
13578: push(@{$name_to_host{$name}},$id);
13579: }
13580: } else {
13581: push(@{$name_to_host{$name}},$id);
13582: }
1.852 albertel 13583: $hostname{$id}=$name;
13584: $hostdom{$id}=$domain;
13585: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 13586: if (defined($protocol)) {
13587: if ($protocol eq 'https') {
13588: $protocol{$id} = $protocol;
13589: } else {
13590: $protocol{$id} = 'http';
13591: }
1.968 raeburn 13592: } else {
1.969 raeburn 13593: $protocol{$id} = 'http';
1.968 raeburn 13594: }
1.1074 raeburn 13595: if (defined($intdom)) {
13596: $internetdom{$id} = $intdom;
13597: }
1.852 albertel 13598: }
13599: }
13600: }
1.864 albertel 13601:
13602: sub reset_hosts_info {
1.897 albertel 13603: &purge_remembered();
1.864 albertel 13604: &reset_domain_info();
13605: &reset_hosts_ip_info();
1.1339 raeburn 13606: undef(%internetdom);
1.892 albertel 13607: undef(%name_to_host);
1.864 albertel 13608: undef(%hostname);
13609: undef(%hostdom);
13610: undef(%libserv);
13611: undef($loaded);
13612: }
1.1 albertel 13613:
1.852 albertel 13614: sub load_hosts_tab {
1.1293 raeburn 13615: my ($ignore_cache,$nocache) = @_;
13616: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
1.1359 raeburn 13617: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
1.852 albertel 13618: my @config = <$config>;
13619: &parse_hosts_tab(\@config);
13620: close($config);
13621: $loaded=1;
1.1 albertel 13622: }
1.852 albertel 13623:
1.838 albertel 13624: sub hostname {
1.852 albertel 13625: &load_hosts_tab() if (!$loaded);
13626:
1.838 albertel 13627: my ($lonid) = @_;
13628: return $hostname{$lonid};
13629: }
1.845 albertel 13630:
1.838 albertel 13631: sub all_hostnames {
1.852 albertel 13632: &load_hosts_tab() if (!$loaded);
13633:
1.838 albertel 13634: return %hostname;
13635: }
1.845 albertel 13636:
1.888 albertel 13637: sub all_names {
1.1293 raeburn 13638: my ($ignore_cache,$nocache) = @_;
13639: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded);
1.888 albertel 13640:
13641: return %name_to_host;
13642: }
13643:
1.974 raeburn 13644: sub all_host_domain {
13645: &load_hosts_tab() if (!$loaded);
13646: return %hostdom;
13647: }
13648:
1.1339 raeburn 13649: sub all_host_intdom {
13650: &load_hosts_tab() if (!$loaded);
13651: return %internetdom;
13652: }
13653:
1.845 albertel 13654: sub is_library {
1.852 albertel 13655: &load_hosts_tab() if (!$loaded);
13656:
1.845 albertel 13657: return exists($libserv{$_[0]});
13658: }
13659:
13660: sub all_library {
1.852 albertel 13661: &load_hosts_tab() if (!$loaded);
13662:
1.845 albertel 13663: return %libserv;
13664: }
13665:
1.1062 droeschl 13666: sub unique_library {
13667: #2x reverse removes all hostnames that appear more than once
13668: my %unique = reverse &all_library();
13669: return reverse %unique;
13670: }
13671:
1.841 albertel 13672: sub get_servers {
1.852 albertel 13673: &load_hosts_tab() if (!$loaded);
13674:
1.841 albertel 13675: my ($domain,$type) = @_;
13676: my %possible_hosts = ($type eq 'library') ? %libserv
13677: : %hostname;
13678: my %result;
1.842 albertel 13679: if (ref($domain) eq 'ARRAY') {
13680: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 13681: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 13682: $result{$host} = $hostname;
13683: }
13684: }
13685: } else {
13686: while ( my ($host,$hostname) = each(%possible_hosts)) {
13687: if ($hostdom{$host} eq $domain) {
13688: $result{$host} = $hostname;
13689: }
1.841 albertel 13690: }
13691: }
13692: return %result;
13693: }
1.845 albertel 13694:
1.1062 droeschl 13695: sub get_unique_servers {
13696: my %unique = reverse &get_servers(@_);
13697: return reverse %unique;
13698: }
13699:
1.844 albertel 13700: sub host_domain {
1.852 albertel 13701: &load_hosts_tab() if (!$loaded);
13702:
1.844 albertel 13703: my ($lonid) = @_;
13704: return $hostdom{$lonid};
13705: }
13706:
1.841 albertel 13707: sub all_domains {
1.852 albertel 13708: &load_hosts_tab() if (!$loaded);
13709:
1.841 albertel 13710: my %seen;
13711: my @uniq = grep(!$seen{$_}++, values(%hostdom));
13712: return @uniq;
13713: }
1.1074 raeburn 13714:
13715: sub internet_dom {
13716: &load_hosts_tab() if (!$loaded);
13717:
13718: my ($lonid) = @_;
13719: return $internetdom{$lonid};
13720: }
1.1107 raeburn 13721:
13722: sub is_LC_dns {
13723: &load_hosts_tab() if (!$loaded);
13724:
13725: my ($hostname) = @_;
13726: return exists($LC_dns_serv{$hostname});
13727: }
13728:
1.1 albertel 13729: }
13730:
1.847 albertel 13731: {
13732: my %iphost;
1.856 albertel 13733: my %name_to_ip;
13734: my %lonid_to_ip;
1.869 albertel 13735:
1.847 albertel 13736: sub get_hosts_from_ip {
13737: my ($ip) = @_;
13738: my %iphosts = &get_iphost();
13739: if (ref($iphosts{$ip})) {
13740: return @{$iphosts{$ip}};
13741: }
13742: return;
1.839 albertel 13743: }
1.864 albertel 13744:
13745: sub reset_hosts_ip_info {
13746: undef(%iphost);
13747: undef(%name_to_ip);
13748: undef(%lonid_to_ip);
13749: }
1.856 albertel 13750:
13751: sub get_host_ip {
13752: my ($lonid) = @_;
13753: if (exists($lonid_to_ip{$lonid})) {
13754: return $lonid_to_ip{$lonid};
13755: }
13756: my $name=&hostname($lonid);
13757: my $ip = gethostbyname($name);
13758: return if (!$ip || length($ip) ne 4);
13759: $ip=inet_ntoa($ip);
13760: $name_to_ip{$name} = $ip;
13761: $lonid_to_ip{$lonid} = $ip;
13762: return $ip;
13763: }
1.847 albertel 13764:
13765: sub get_iphost {
1.1293 raeburn 13766: my ($ignore_cache,$nocache) = @_;
1.894 albertel 13767:
1.869 albertel 13768: if (!$ignore_cache) {
13769: if (%iphost) {
13770: return %iphost;
13771: }
13772: my ($ip_info,$cached)=
13773: &Apache::lonnet::is_cached_new('iphost','iphost');
13774: if ($cached) {
13775: %iphost = %{$ip_info->[0]};
13776: %name_to_ip = %{$ip_info->[1]};
13777: %lonid_to_ip = %{$ip_info->[2]};
13778: return %iphost;
13779: }
13780: }
1.894 albertel 13781:
13782: # get yesterday's info for fallback
13783: my %old_name_to_ip;
13784: my ($ip_info,$cached)=
13785: &Apache::lonnet::is_cached_new('iphost','iphost');
13786: if ($cached) {
13787: %old_name_to_ip = %{$ip_info->[1]};
13788: }
13789:
1.1293 raeburn 13790: my %name_to_host = &all_names($ignore_cache,$nocache);
1.888 albertel 13791: foreach my $name (keys(%name_to_host)) {
1.847 albertel 13792: my $ip;
13793: if (!exists($name_to_ip{$name})) {
13794: $ip = gethostbyname($name);
13795: if (!$ip || length($ip) ne 4) {
1.894 albertel 13796: if (defined($old_name_to_ip{$name})) {
13797: $ip = $old_name_to_ip{$name};
13798: &logthis("Can't find $name defaulting to old $ip");
13799: } else {
13800: &logthis("Name $name no IP found");
13801: next;
13802: }
13803: } else {
13804: $ip=inet_ntoa($ip);
1.847 albertel 13805: }
13806: $name_to_ip{$name} = $ip;
13807: } else {
13808: $ip = $name_to_ip{$name};
1.653 albertel 13809: }
1.888 albertel 13810: foreach my $id (@{ $name_to_host{$name} }) {
13811: $lonid_to_ip{$id} = $ip;
13812: }
13813: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 13814: }
1.1293 raeburn 13815: unless ($nocache) {
13816: &do_cache_new('iphost','iphost',
13817: [\%iphost,\%name_to_ip,\%lonid_to_ip],
13818: 48*60*60);
13819: }
1.869 albertel 13820:
1.847 albertel 13821: return %iphost;
1.598 albertel 13822: }
13823:
1.992 raeburn 13824: #
13825: # Given a DNS returns the loncapa host name for that DNS
13826: #
13827: sub host_from_dns {
13828: my ($dns) = @_;
13829: my @hosts;
13830: my $ip;
13831:
1.993 raeburn 13832: if (exists($name_to_ip{$dns})) {
1.992 raeburn 13833: $ip = $name_to_ip{$dns};
13834: }
13835: if (!$ip) {
13836: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
13837: if (length($ip) == 4) {
13838: $ip = &IO::Socket::inet_ntoa($ip);
13839: }
13840: }
13841: if ($ip) {
13842: @hosts = get_hosts_from_ip($ip);
13843: return $hosts[0];
13844: }
13845: return undef;
1.986 foxr 13846: }
1.992 raeburn 13847:
1.1074 raeburn 13848: sub get_internet_names {
13849: my ($lonid) = @_;
13850: return if ($lonid eq '');
13851: my ($idnref,$cached)=
13852: &Apache::lonnet::is_cached_new('internetnames',$lonid);
13853: if ($cached) {
13854: return $idnref;
13855: }
13856: my $ip = &get_host_ip($lonid);
13857: my @hosts = &get_hosts_from_ip($ip);
13858: my %iphost = &get_iphost();
13859: my (@idns,%seen);
13860: foreach my $id (@hosts) {
13861: my $dom = &host_domain($id);
13862: my $prim_id = &domain($dom,'primary');
13863: my $prim_ip = &get_host_ip($prim_id);
13864: next if ($seen{$prim_ip});
13865: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
13866: foreach my $id (@{$iphost{$prim_ip}}) {
13867: my $intdom = &internet_dom($id);
13868: unless (grep(/^\Q$intdom\E$/,@idns)) {
13869: push(@idns,$intdom);
13870: }
13871: }
13872: }
13873: $seen{$prim_ip} = 1;
13874: }
1.1219 raeburn 13875: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
1.1074 raeburn 13876: }
13877:
1.986 foxr 13878: }
13879:
1.1079 raeburn 13880: sub all_loncaparevs {
1.1249 raeburn 13881: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
1.1079 raeburn 13882: }
13883:
1.1227 raeburn 13884: # ---------------------------------------------------------- Read loncaparev table
13885: {
13886: sub load_loncaparevs {
13887: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
1.1359 raeburn 13888: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
1.1227 raeburn 13889: while (my $configline=<$config>) {
13890: chomp($configline);
13891: my ($hostid,$loncaparev)=split(/:/,$configline);
13892: $loncaparevs{$hostid}=$loncaparev;
13893: }
13894: close($config);
13895: }
13896: }
13897: }
13898: }
13899:
13900: # ---------------------------------------------------------- Read serverhostID table
13901: {
13902: sub load_serverhomeIDs {
13903: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
1.1359 raeburn 13904: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1.1227 raeburn 13905: while (my $configline=<$config>) {
13906: chomp($configline);
13907: my ($name,$id)=split(/:/,$configline);
13908: $serverhomeIDs{$name}=$id;
13909: }
13910: close($config);
13911: }
13912: }
13913: }
13914: }
13915:
13916:
1.862 albertel 13917: BEGIN {
13918:
13919: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
13920: unless ($readit) {
13921: {
13922: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
13923: %perlvar = (%perlvar,%{$configvars});
13924: }
13925:
13926:
1.1 albertel 13927: # ------------------------------------------------------ Read spare server file
13928: {
1.1359 raeburn 13929: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 13930:
13931: while (my $configline=<$config>) {
13932: chomp($configline);
1.284 matthew 13933: if ($configline) {
1.784 albertel 13934: my ($host,$type) = split(':',$configline,2);
1.785 albertel 13935: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 13936: push(@{ $spareid{$type} }, $host);
1.1 albertel 13937: }
13938: }
1.448 albertel 13939: close($config);
1.1 albertel 13940: }
1.11 www 13941: # ------------------------------------------------------------ Read permissions
13942: {
1.1359 raeburn 13943: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");
1.11 www 13944:
13945: while (my $configline=<$config>) {
1.448 albertel 13946: chomp($configline);
13947: if ($configline) {
13948: my ($role,$perm)=split(/ /,$configline);
13949: if ($perm ne '') { $pr{$role}=$perm; }
13950: }
1.11 www 13951: }
1.448 albertel 13952: close($config);
1.11 www 13953: }
13954:
13955: # -------------------------------------------- Read plain texts for permissions
13956: {
1.1359 raeburn 13957: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 13958:
13959: while (my $configline=<$config>) {
1.448 albertel 13960: chomp($configline);
13961: if ($configline) {
1.742 raeburn 13962: my ($short,@plain)=split(/:/,$configline);
13963: %{$prp{$short}} = ();
13964: if (@plain > 0) {
13965: $prp{$short}{'std'} = $plain[0];
13966: for (my $i=1; $i<@plain; $i++) {
13967: $prp{$short}{'alt'.$i} = $plain[$i];
13968: }
13969: }
1.448 albertel 13970: }
1.135 www 13971: }
1.448 albertel 13972: close($config);
1.135 www 13973: }
13974:
13975: # ---------------------------------------------------------- Read package table
13976: {
1.1359 raeburn 13977: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");
1.135 www 13978:
13979: while (my $configline=<$config>) {
1.483 albertel 13980: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 13981: chomp($configline);
13982: my ($short,$plain)=split(/:/,$configline);
13983: my ($pack,$name)=split(/\&/,$short);
13984: if ($plain ne '') {
13985: $packagetab{$pack.'&'.$name.'&name'}=$name;
13986: $packagetab{$short}=$plain;
13987: }
1.11 www 13988: }
1.448 albertel 13989: close($config);
1.329 matthew 13990: }
13991:
1.1073 raeburn 13992: # ---------------------------------------------------------- Read loncaparev table
1.1227 raeburn 13993:
13994: &load_loncaparevs();
1.1073 raeburn 13995:
1.1074 raeburn 13996: # ---------------------------------------------------------- Read serverhostID table
13997:
1.1227 raeburn 13998: &load_serverhomeIDs();
13999:
14000: # ---------------------------------------------------------- Read releaseslist XML
1.1079 raeburn 14001: {
14002: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
14003: if (-e $file) {
14004: my $parser = HTML::LCParser->new($file);
14005: while (my $token = $parser->get_token()) {
14006: if ($token->[0] eq 'S') {
14007: my $item = $token->[1];
14008: my $name = $token->[2]{'name'};
14009: my $value = $token->[2]{'value'};
1.1285 raeburn 14010: my $valuematch = $token->[2]{'valuematch'};
1.1303 raeburn 14011: my $namematch = $token->[2]{'namematch'};
14012: if ($item eq 'parameter') {
14013: if (($namematch ne '') || (($name ne '') && ($value ne '' || $valuematch ne ''))) {
14014: my $release = $parser->get_text();
14015: $release =~ s/(^\s*|\s*$ )//gx;
14016: $needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release;
14017: }
14018: } elsif ($item ne '' && $name ne '') {
1.1079 raeburn 14019: my $release = $parser->get_text();
14020: $release =~ s/(^\s*|\s*$ )//gx;
1.1303 raeburn 14021: $needsrelease{$item.':'.$name.':'.$value} = $release;
1.1079 raeburn 14022: }
14023: }
14024: }
14025: }
1.1073 raeburn 14026: }
14027:
1.1138 raeburn 14028: # ---------------------------------------------------------- Read managers table
14029: {
14030: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
1.1359 raeburn 14031: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {
1.1138 raeburn 14032: while (my $configline=<$config>) {
14033: chomp($configline);
14034: next if ($configline =~ /^\#/);
14035: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
14036: $managerstab{$configline} = 1;
14037: }
14038: }
14039: close($config);
14040: }
14041: }
14042: }
14043:
1.329 matthew 14044: # ------------- set up temporary directory
14045: {
1.1117 foxr 14046: $tmpdir = LONCAPA::tempdir();
1.329 matthew 14047:
1.11 www 14048: }
14049:
1.794 albertel 14050: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
14051: 'compress_threshold'=> 20_000,
14052: });
1.185 www 14053:
1.281 www 14054: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 14055: $dumpcount=0;
1.958 www 14056: $locknum=0;
1.22 www 14057:
1.163 harris41 14058: &logtouch();
1.672 albertel 14059: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 14060: $readit=1;
1.564 albertel 14061: {
14062: use integer;
14063: my $test=(2**32)+1;
1.568 albertel 14064: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 14065: &logthis(" Detected 64bit platform ($_64bit)");
14066: }
1.195 www 14067: }
1.1 albertel 14068: }
1.179 www 14069:
1.1 albertel 14070: 1;
1.191 harris41 14071: __END__
14072:
1.243 albertel 14073: =pod
14074:
1.191 harris41 14075: =head1 NAME
14076:
1.243 albertel 14077: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 14078:
14079: =head1 SYNOPSIS
14080:
1.243 albertel 14081: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 14082:
14083: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
14084:
1.243 albertel 14085: Common parameters:
14086:
14087: =over 4
14088:
14089: =item *
14090:
14091: $uname : an internal username (if $cname expecting a course Id specifically)
14092:
14093: =item *
14094:
14095: $udom : a domain (if $cdom expecting a course's domain specifically)
14096:
14097: =item *
14098:
14099: $symb : a resource instance identifier
14100:
14101: =item *
14102:
14103: $namespace : the name of a .db file that contains the data needed or
14104: being set.
14105:
14106: =back
14107:
1.394 bowersj2 14108: =head1 OVERVIEW
1.191 harris41 14109:
1.394 bowersj2 14110: lonnet provides subroutines which interact with the
14111: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
14112: about classes, users, and resources.
1.243 albertel 14113:
14114: For many of these objects you can also use this to store data about
14115: them or modify them in various ways.
1.191 harris41 14116:
1.394 bowersj2 14117: =head2 Symbs
1.191 harris41 14118:
1.394 bowersj2 14119: To identify a specific instance of a resource, LON-CAPA uses symbols
14120: or "symbs"X<symb>. These identifiers are built from the URL of the
14121: map, the resource number of the resource in the map, and the URL of
14122: the resource itself. The latter is somewhat redundant, but might help
14123: if maps change.
14124:
14125: An example is
14126:
14127: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
14128:
14129: The respective map entry is
14130:
14131: <resource id="19" src="/res/msu/korte/tests/part12.problem"
14132: title="Problem 2">
14133: </resource>
14134:
14135: Symbs are used by the random number generator, as well as to store and
14136: restore data specific to a certain instance of for example a problem.
14137:
14138: =head2 Storing And Retrieving Data
14139:
14140: X<store()>X<cstore()>X<restore()>Three of the most important functions
14141: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
14142: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
14143: is is the non-critical message twin of cstore. These functions are for
14144: handlers to store a perl hash to a user's permanent data space in an
14145: easy manner, and to retrieve it again on another call. It is expected
14146: that a handler would use this once at the beginning to retrieve data,
14147: and then again once at the end to send only the new data back.
14148:
14149: The data is stored in the user's data directory on the user's
14150: homeserver under the ID of the course.
14151:
14152: The hash that is returned by restore will have all of the previous
14153: value for all of the elements of the hash.
14154:
14155: Example:
14156:
14157: #creating a hash
14158: my %hash;
14159: $hash{'foo'}='bar';
14160:
14161: #storing it
14162: &Apache::lonnet::cstore(\%hash);
14163:
14164: #changing a value
14165: $hash{'foo'}='notbar';
14166:
14167: #adding a new value
14168: $hash{'bar'}='foo';
14169: &Apache::lonnet::cstore(\%hash);
14170:
14171: #retrieving the hash
14172: my %history=&Apache::lonnet::restore();
14173:
14174: #print the hash
14175: foreach my $key (sort(keys(%history))) {
14176: print("\%history{$key} = $history{$key}");
14177: }
14178:
14179: Will print out:
1.191 harris41 14180:
1.394 bowersj2 14181: %history{1:foo} = bar
14182: %history{1:keys} = foo:timestamp
14183: %history{1:timestamp} = 990455579
14184: %history{2:bar} = foo
14185: %history{2:foo} = notbar
14186: %history{2:keys} = foo:bar:timestamp
14187: %history{2:timestamp} = 990455580
14188: %history{bar} = foo
14189: %history{foo} = notbar
14190: %history{timestamp} = 990455580
14191: %history{version} = 2
14192:
14193: Note that the special hash entries C<keys>, C<version> and
14194: C<timestamp> were added to the hash. C<version> will be equal to the
14195: total number of versions of the data that have been stored. The
14196: C<timestamp> attribute will be the UNIX time the hash was
14197: stored. C<keys> is available in every historical section to list which
14198: keys were added or changed at a specific historical revision of a
14199: hash.
14200:
14201: B<Warning>: do not store the hash that restore returns directly. This
14202: will cause a mess since it will restore the historical keys as if the
14203: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 14204:
1.394 bowersj2 14205: Calling convention:
1.191 harris41 14206:
1.1225 raeburn 14207: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
1.1269 raeburn 14208: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
1.191 harris41 14209:
1.394 bowersj2 14210: For more detailed information, see lonnet specific documentation.
1.191 harris41 14211:
1.394 bowersj2 14212: =head1 RETURN MESSAGES
1.191 harris41 14213:
1.394 bowersj2 14214: =over 4
1.191 harris41 14215:
1.394 bowersj2 14216: =item * B<con_lost>: unable to contact remote host
1.191 harris41 14217:
1.394 bowersj2 14218: =item * B<con_delayed>: unable to contact remote host, message will be delivered
14219: when the connection is brought back up
1.191 harris41 14220:
1.394 bowersj2 14221: =item * B<con_failed>: unable to contact remote host and unable to save message
14222: for later delivery
1.191 harris41 14223:
1.967 bisitz 14224: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 14225:
1.394 bowersj2 14226: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 14227: that was requested
1.191 harris41 14228:
1.243 albertel 14229: =back
1.191 harris41 14230:
1.243 albertel 14231: =head1 PUBLIC SUBROUTINES
1.191 harris41 14232:
1.243 albertel 14233: =head2 Session Environment Functions
1.191 harris41 14234:
1.243 albertel 14235: =over 4
1.191 harris41 14236:
1.394 bowersj2 14237: =item *
14238: X<appenv()>
1.949 raeburn 14239: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 14240: the user envirnoment file, and will be restored for each access this
1.620 albertel 14241: user makes during this session, also modifies the %env for the current
1.949 raeburn 14242: process. Optional rolesarrayref - if defined contains a reference to an array
14243: of roles which are exempt from the restriction on modifying user.role entries
14244: in the user's environment.db and in %env.
1.191 harris41 14245:
14246: =item *
1.394 bowersj2 14247: X<delenv()>
1.987 raeburn 14248: B<delenv($delthis,$regexp)>: removes all items from the session
14249: environment file that begin with $delthis. If the
14250: optional second arg - $regexp - is true, $delthis is treated as a
14251: regular expression, otherwise \Q$delthis\E is used.
14252: The values are also deleted from the current processes %env.
1.191 harris41 14253:
1.795 albertel 14254: =item * get_env_multiple($name)
14255:
14256: gets $name from the %env hash, it seemlessly handles the cases where multiple
14257: values may be defined and end up as an array ref.
14258:
14259: returns an array of values
14260:
1.243 albertel 14261: =back
14262:
14263: =head2 User Information
1.191 harris41 14264:
1.243 albertel 14265: =over 4
1.191 harris41 14266:
14267: =item *
1.394 bowersj2 14268: X<queryauthenticate()>
14269: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 14270: authentication scheme
14271:
14272: =item *
1.394 bowersj2 14273: X<authenticate()>
1.1073 raeburn 14274: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 14275: authenticate user from domain's lib servers (first use the current
14276: one). C<$upass> should be the users password.
1.1073 raeburn 14277: $checkdefauth is optional (value is 1 if a check should be made to
14278: authenticate user using default authentication method, and allow
14279: account creation if username does not have account in the domain).
14280: $clientcancheckhost is optional (value is 1 if checking whether the
14281: server can host will occur on the client side in lonauth.pm).
1.191 harris41 14282:
14283: =item *
1.394 bowersj2 14284: X<homeserver()>
14285: B<homeserver($uname,$udom)>: find the server which has
14286: the user's directory and files (there must be only one), this caches
14287: the answer, and also caches if there is a borken connection.
1.191 harris41 14288:
14289: =item *
1.394 bowersj2 14290: X<idget()>
1.1300 raeburn 14291: B<idget($udom,$idsref,$namespace)>: find the usernames behind either
14292: a list of student/employee IDs or clicker IDs
14293: (student/employee IDs are a unique resource in a domain, there must be
14294: only 1 ID per username, and only 1 username per ID in a specific domain).
14295: clickerIDs are not necessarily unique, as students might share clickers.
14296: (returns hash: id=>name,id=>name)
1.191 harris41 14297:
14298: =item *
1.394 bowersj2 14299: X<idrget()>
14300: B<idrget($udom,@unames)>: find the IDs behind a list of
14301: usernames (returns hash: name=>id,name=>id)
1.191 harris41 14302:
14303: =item *
1.394 bowersj2 14304: X<idput()>
1.1300 raeburn 14305: B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of
14306: names and associated student/employee IDs or clicker IDs.
14307:
14308: =item *
14309: X<iddel()>
14310: B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted
14311: student/employee ID or clicker ID username look-ups from domain.
14312: The homeserver ($uhome) and namespace ($namespace) are optional.
14313: If no $uhome is provided, it will be determined usig &homeserver()
14314: for each user. If no $namespace is provided, the default is ids.
14315:
14316: =item *
14317: X<updateclickers()>
14318: B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update
14319: clicker ID-to-username look-ups in clickers.db on library server.
14320: Permitted actions are add or del (i.e., add or delete). The
14321: clickers.db contains clickerID as keys (escaped), and each corresponding
14322: value is an escaped comma-separated list of usernames (for whom the
14323: library server is the homeserver), who registered that particular ID.
14324: If $critical is true, the update will be sent via &critical, otherwise
14325: &reply() will be used.
1.191 harris41 14326:
14327: =item *
1.394 bowersj2 14328: X<rolesinit()>
1.1169 droeschl 14329: B<rolesinit($udom,$username)>: get user privileges.
14330: returns user role, first access and timer interval hashes
1.243 albertel 14331:
14332: =item *
1.1171 droeschl 14333: X<privileged()>
14334: B<privileged($username,$domain)>: returns a true if user has a
14335: privileged and active role (i.e. su or dc), false otherwise.
14336:
14337: =item *
1.551 albertel 14338: X<getsection()>
14339: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 14340: course $cname, return section name/number or '' for "not in course"
14341: and '-1' for "no section"
14342:
14343: =item *
1.394 bowersj2 14344: X<userenvironment()>
14345: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 14346: passed in @what from the requested user's environment, returns a hash
14347:
1.858 raeburn 14348: =item *
14349: X<userlog_query()>
1.859 albertel 14350: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
14351: activity.log file. %filters defines filters applied when parsing the
14352: log file. These can be start or end timestamps, or the type of action
14353: - log to look for Login or Logout events, check for Checkin or
14354: Checkout, role for role selection. The response is in the form
14355: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
14356: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 14357:
1.243 albertel 14358: =back
14359:
14360: =head2 User Roles
14361:
14362: =over 4
14363:
14364: =item *
14365:
1.1284 raeburn 14366: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;
14367: returns codes for allowed actions.
14368:
14369: The first argument is required, all others are optional.
14370:
14371: $priv is the privilege being checked.
14372: $uri contains additional information about what is being checked for access (e.g.,
14373: URL, course ID etc.).
14374: $symb is the unique resource instance identifier in a course; if needed,
14375: but not provided, it will be retrieved via a call to &symbread().
14376: $role is the role for which a priv is being checked (only used if priv is evb).
14377: $clientip is the user's IP address (only used when checking for access to portfolio
14378: files).
14379: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
14380: prevents recursive calls to &allowed.
14381:
1.243 albertel 14382: F: full access
14383: U,I,K: authentication modes (cxx only)
14384: '': forbidden
14385: 1: user needs to choose course
14386: 2: browse allowed
1.766 albertel 14387: A: passphrase authentication needed
1.1284 raeburn 14388: B: access temporarily blocked because of a blocking event in a course.
1.243 albertel 14389:
14390: =item *
14391:
1.1192 raeburn 14392: constructaccess($url,$setpriv) : check for access to construction space URL
14393:
14394: See if the owner domain and name in the URL match those in the
14395: expected environment. If so, return three element list
14396: ($ownername,$ownerdomain,$ownerhome).
14397:
14398: Otherwise return the null string.
14399:
14400: If second argument 'setpriv' is true, it assigns the privileges,
14401: and returns the same three element list, unless the owner has
14402: blocked "ad hoc" Domain Coordinator access to the Author Space,
14403: in which case the null string is returned.
14404:
14405: =item *
14406:
1.1326 raeburn 14407: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;
14408: define a custom role rolename set privileges in format of lonTabs/roles.tab
14409: for system, domain, and course level. $uname and $udom are optional (current
14410: user's username and domain will be used when either of $uname or $udom are absent.
1.243 albertel 14411:
14412: =item *
14413:
1.988 raeburn 14414: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
14415: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 14416: $type is Course (default) or Community.
1.988 raeburn 14417: If $forcedefault evaluates to true, text returned will be default
14418: text for $type. Otherwise, if this is a course, the text returned
14419: will be a custom name for the role (if defined in the course's
14420: environment). If no custom name is defined the default is returned.
14421:
1.832 raeburn 14422: =item *
14423:
1.1219 raeburn 14424: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
1.858 raeburn 14425: All arguments are optional. Returns a hash of a roles, either for
14426: co-author/assistant author roles for a user's Construction Space
1.906 albertel 14427: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 14428: In the hash, keys are set to colon-separated $uname,$udom,$role, and
14429: (optionally) if $withsec is true, a fourth colon-separated item - $section.
14430: For each key, value is set to colon-separated start and end times for
14431: the role. If no username and domain are specified, will default to
1.934 raeburn 14432: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 14433: of role statuses (active, future or previous), roles
14434: (e.g., cc,in, st etc.) and domains of the roles which can be used
14435: to restrict the list of roles reported. If no array ref is
14436: provided for types, will default to return only active roles.
1.834 albertel 14437:
1.1195 raeburn 14438: =item *
14439:
14440: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
1.1196 raeburn 14441: user: $uname:$udom has a role in the course: $cdom_$cnum.
14442:
14443: Additional optional arguments are: $type (if role checking is to be restricted
14444: to certain user status types -- previous (expired roles), active (currently
1.1195 raeburn 14445: available roles) or future (roles available in the future), and
14446: $hideprivileged -- if true will not report course roles for users who
1.1219 raeburn 14447: have active Domain Coordinator role in course's domain or in additional
14448: domains (specified in 'Domains to check for privileged users' in course
14449: environment -- set via: Course Settings -> Classlists and staff listing).
14450:
14451: =item *
14452:
14453: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
14454: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
14455: $possdomains and $possroles are optional array refs -- to domains to check and
14456: roles to check. If $possdomains is not specified, a dump will be done of the
14457: users' roles.db to check for a dc or su role in any domain. This can be
14458: time consuming if &privileged is called repeatedly (e.g., when displaying a
14459: classlist), so in such cases, supplying a $possdomains array is preferred, as
14460: this then allows &privileged_by_domain() to be used, which caches the identity
14461: of privileged users, eliminating the need for repeated calls to &dump().
14462:
14463: =item *
14464:
14465: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
14466: where the outer hash keys are domains specified in the $possdomains array ref,
14467: next inner hash keys are privileged roles specified in the $roles array ref,
14468: and the innermost hash contains key = value pairs for username:domain = end:start
14469: for active or future "privileged" users with that role in that domain. To avoid
14470: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
14471: innerhash are cached using priv_$role and $dom as the identifiers.
1.1195 raeburn 14472:
1.243 albertel 14473: =back
14474:
14475: =head2 User Modification
14476:
14477: =over 4
14478:
14479: =item *
14480:
1.957 raeburn 14481: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 14482: user for the level given by URL. Optional start and end dates (leave empty
14483: string or zero for "no date")
1.191 harris41 14484:
14485: =item *
14486:
1.243 albertel 14487: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
14488: change a users, password, possible return values are: ok,
14489: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
14490: refused
1.191 harris41 14491:
14492: =item *
14493:
1.243 albertel 14494: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 14495:
14496: =item *
14497:
1.1058 raeburn 14498: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
14499: $forceid,$desiredhome,$email,$inststatus,$candelete) :
14500:
14501: will update user information (firstname,middlename,lastname,generation,
14502: permanentemail), and if forceid is true, student/employee ID also.
14503: A user's institutional affiliation(s) can also be updated.
14504: User information fields will not be overwritten with empty entries
14505: unless the field is included in the $candelete array reference.
14506: This array is included when a single user is modified via "Manage Users",
14507: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 14508:
14509: =item *
14510:
1.286 matthew 14511: modifystudent
14512:
1.957 raeburn 14513: modify a student's enrollment and identification information.
1.1235 raeburn 14514: The course id is resolved based on the current user's environment.
14515: This means the invoking user must be a course coordinator or otherwise
1.286 matthew 14516: associated with a course.
14517:
1.297 matthew 14518: This call is essentially a wrapper for lonnet::modifyuser and
14519: lonnet::modify_student_enrollment
1.286 matthew 14520:
14521: Inputs:
14522:
14523: =over 4
14524:
1.957 raeburn 14525: =item B<$udom> Student's loncapa domain
1.286 matthew 14526:
1.957 raeburn 14527: =item B<$uname> Student's loncapa login name
1.286 matthew 14528:
1.964 bisitz 14529: =item B<$uid> Student/Employee ID
1.286 matthew 14530:
1.957 raeburn 14531: =item B<$umode> Student's authentication mode
1.286 matthew 14532:
1.957 raeburn 14533: =item B<$upass> Student's password
1.286 matthew 14534:
1.957 raeburn 14535: =item B<$first> Student's first name
1.286 matthew 14536:
1.957 raeburn 14537: =item B<$middle> Student's middle name
1.286 matthew 14538:
1.957 raeburn 14539: =item B<$last> Student's last name
1.286 matthew 14540:
1.957 raeburn 14541: =item B<$gene> Student's generation
1.286 matthew 14542:
1.957 raeburn 14543: =item B<$usec> Student's section in course
1.286 matthew 14544:
14545: =item B<$end> Unix time of the roles expiration
14546:
14547: =item B<$start> Unix time of the roles start date
14548:
14549: =item B<$forceid> If defined, allow $uid to be changed
14550:
14551: =item B<$desiredhome> server to use as home server for student
14552:
1.957 raeburn 14553: =item B<$email> Student's permanent e-mail address
14554:
14555: =item B<$type> Type of enrollment (auto or manual)
14556:
1.963 raeburn 14557: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
14558:
14559: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 14560:
1.963 raeburn 14561: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 14562:
1.963 raeburn 14563: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 14564:
1.1216 raeburn 14565: =item B<$inststatus> institutional status of user - : separated string of escaped status types
14566:
14567: =item B<$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 14568:
1.286 matthew 14569: =back
1.297 matthew 14570:
14571: =item *
14572:
14573: modify_student_enrollment
14574:
1.1235 raeburn 14575: Change a student's enrollment status in a class. The environment variable
1.297 matthew 14576: 'role.request.course' must be defined for this function to proceed.
14577:
14578: Inputs:
14579:
14580: =over 4
14581:
1.1235 raeburn 14582: =item $udom, student's domain
1.297 matthew 14583:
1.1235 raeburn 14584: =item $uname, student's name
1.297 matthew 14585:
1.1235 raeburn 14586: =item $uid, student's user id
1.297 matthew 14587:
1.1235 raeburn 14588: =item $first, student's first name
1.297 matthew 14589:
14590: =item $middle
14591:
14592: =item $last
14593:
14594: =item $gene
14595:
14596: =item $usec
14597:
14598: =item $end
14599:
14600: =item $start
14601:
1.957 raeburn 14602: =item $type
14603:
14604: =item $locktype
14605:
14606: =item $cid
14607:
14608: =item $selfenroll
14609:
14610: =item $context
14611:
1.1216 raeburn 14612: =item $credits, number of credits student will earn from this class
14613:
1.1314 raeburn 14614: =item $instsec, institutional course section code for student
14615:
1.297 matthew 14616: =back
14617:
1.191 harris41 14618:
14619: =item *
14620:
1.243 albertel 14621: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
14622: custom role; give a custom role to a user for the level given by URL. Specify
14623: name and domain of role author, and role name
1.191 harris41 14624:
14625: =item *
14626:
1.243 albertel 14627: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 14628:
14629: =item *
14630:
1.243 albertel 14631: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
14632:
14633: =back
14634:
14635: =head2 Course Infomation
14636:
14637: =over 4
1.191 harris41 14638:
14639: =item *
14640:
1.1118 foxr 14641: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 14642: specified course id, including all environment settings for the
14643: course, the description of the course will be in the hash under the
14644: key 'description'
1.191 harris41 14645:
1.1118 foxr 14646: $options is an optional parameter that if supplied is a hash reference that controls
14647: what how this function works. It has the following key/values:
14648:
14649: =over 4
14650:
14651: =item freshen_cache
14652:
14653: If defined, and the environment cache for the course is valid, it is
14654: returned in the returned hash.
14655:
14656: =item one_time
14657:
14658: If defined, the last cache time is set to _now_
14659:
14660: =item user
14661:
14662: If defined, the supplied username is used instead of the current user.
14663:
14664:
14665: =back
14666:
1.191 harris41 14667: =item *
14668:
1.624 albertel 14669: resdata($name,$domain,$type,@which) : request for current parameter
14670: setting for a specific $type, where $type is either 'course' or 'user',
14671: @what should be a list of parameters to ask about. This routine caches
1.1235 raeburn 14672: answers for 10 minutes.
1.243 albertel 14673:
1.877 foxr 14674: =item *
14675:
14676: get_courseresdata($courseid, $domain) : dump the entire course resource
14677: data base, returning a hash that is keyed by the resource name and has
14678: values that are the resource value. I believe that the timestamps and
14679: versions are also returned.
14680:
1.1236 raeburn 14681: get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
14682: supplemental content area. This routine caches the number of files for
14683: 10 minutes.
14684:
1.243 albertel 14685: =back
14686:
14687: =head2 Course Modification
14688:
14689: =over 4
1.191 harris41 14690:
14691: =item *
14692:
1.243 albertel 14693: writecoursepref($courseid,%prefs) : write preferences (environment
14694: database) for a course
1.191 harris41 14695:
14696: =item *
14697:
1.1011 raeburn 14698: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
14699:
14700: =item *
14701:
1.1038 raeburn 14702: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 14703:
1.1167 droeschl 14704: =item *
14705:
14706: is_course($courseid), is_course($cdom, $cnum)
14707:
14708: Accepts either a combined $courseid (in the form of domain_courseid) or the
14709: two component version $cdom, $cnum. It checks if the specified course exists.
14710:
14711: Returns:
14712: undef if the course doesn't exist, otherwise
14713: in scalar context the combined courseid.
14714: in list context the two components of the course identifier, domain and
14715: courseid.
14716:
1.243 albertel 14717: =back
14718:
14719: =head2 Resource Subroutines
14720:
14721: =over 4
1.191 harris41 14722:
14723: =item *
14724:
1.243 albertel 14725: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 14726:
14727: =item *
14728:
1.243 albertel 14729: repcopy($filename) : subscribes to the requested file, and attempts to
14730: replicate from the owning library server, Might return
1.607 raeburn 14731: 'unavailable', 'not_found', 'forbidden', 'ok', or
14732: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 14733: resource. Expects the local filesystem pathname
14734: (/home/httpd/html/res/....)
14735:
14736: =back
14737:
14738: =head2 Resource Information
14739:
14740: =over 4
1.191 harris41 14741:
14742: =item *
14743:
1.1228 raeburn 14744: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
14745: and returns the value of a variety of different possible values,
14746: $varname should be a request string, and the other parameters can be
14747: used to specify who and what one is asking about. Ordinarily, $cid
14748: does not need to be specified, as it is retrived from
14749: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
14750: within lonuserstate::loadmap() when initializing a course, before
14751: $env{'request.course.id'} has been set, so it needs to be provided
14752: in that one case.
1.243 albertel 14753:
14754: Possible values for $varname are environment.lastname (or other item
14755: from the envirnment hash), user.name (or someother aspect about the
14756: user), resource.0.maxtries (or some other part and parameter of a
14757: resource)
1.204 albertel 14758:
14759: =item *
14760:
1.243 albertel 14761: directcondval($number) : get current value of a condition; reads from a state
14762: string
1.204 albertel 14763:
14764: =item *
14765:
1.243 albertel 14766: condval($condidx) : value of condition index based on state
1.204 albertel 14767:
14768: =item *
14769:
1.1362 raeburn 14770: metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a
1.243 albertel 14771: resource's metadata, $what should be either a specific key, or either
14772: 'keys' (to get a list of possible keys) or 'packages' to get a list of
1.1362 raeburn 14773: packages that this resource currently uses, the last 3 arguments are
14774: only used internally for recursive metadata.
14775:
14776: the toolsymb is only used where the uri is for an external tool (for which
14777: the uri as well as the symb are guaranteed to be unique).
1.243 albertel 14778:
14779: this function automatically caches all requests
1.191 harris41 14780:
14781: =item *
14782:
1.243 albertel 14783: metadata_query($query,$custom,$customshow) : make a metadata query against the
14784: network of library servers; returns file handle of where SQL and regex results
14785: will be stored for query
1.191 harris41 14786:
14787: =item *
14788:
1.1282 raeburn 14789: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :
14790: return symbolic list entry (all arguments optional).
14791:
14792: Args: filename is the filename (including path) for the file for which a symb
14793: is required; donotrecurse, if true will prevent calls to allowed() being made
14794: to check access status if more than one resource was found in the bighash
14795: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
14796: a randompick); ignorecachednull, if true will prevent a symb of '' being
14797: returned if $env{$cache_str} is defined as ''; checkforblock if true will
14798: cause possible symbs to be checked to determine if they are subject to content
14799: blocking, if so they will not be included as possible symbs; possibles is a
14800: ref to a hash, which, as a side effect, will be populated with all possible
14801: symbs (content blocking not tested).
14802:
1.243 albertel 14803: returns the data handle
1.191 harris41 14804:
14805: =item *
14806:
1.1190 raeburn 14807: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
14808: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 14809: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1190 raeburn 14810: on failure, user must be in a course, as it assumes the existence of
14811: the course initial hash, and uses $env('request.course.id'}. The third
14812: arg is an optional reference to a scalar. If this arg is passed in the
14813: call to symbverify, it will be set to 1 if the symb has been set to be
14814: encrypted; otherwise it will be null.
1.191 harris41 14815:
14816: =item *
14817:
1.243 albertel 14818: symbclean($symb) : removes versions numbers from a symb, returns the
14819: cleaned symb
1.191 harris41 14820:
14821: =item *
14822:
1.243 albertel 14823: is_on_map($uri) : checks if the $uri is somewhere on the current
14824: course map, user must be in a course for it to work.
1.191 harris41 14825:
14826: =item *
14827:
1.243 albertel 14828: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 14829:
14830: =item *
14831:
1.243 albertel 14832: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
14833: a random seed, all arguments are optional, if they aren't sent it uses the
14834: environment to derive them. Note: if symb isn't sent and it can't get one
14835: from &symbread it will use the current time as its return value
1.191 harris41 14836:
14837: =item *
14838:
1.243 albertel 14839: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
14840: unfakeable, receipt
1.191 harris41 14841:
14842: =item *
14843:
1.620 albertel 14844: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 14845:
14846: =item *
14847:
1.243 albertel 14848: countacc($url) : count the number of accesses to a given URL
1.191 harris41 14849:
14850: =item *
14851:
1.243 albertel 14852: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 14853:
14854: =item *
14855:
1.243 albertel 14856: checkin($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 $tcrsid)
1.191 harris41 14857:
14858: =item *
14859:
1.243 albertel 14860: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 14861:
14862: =item *
14863:
1.243 albertel 14864: devalidate($symb) : devalidate temporary spreadsheet calculations,
14865: forcing spreadsheet to reevaluate the resource scores next time.
14866:
1.1195 raeburn 14867: =item *
14868:
1.1196 raeburn 14869: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
14870: when viewing in course context.
1.1195 raeburn 14871:
1.1196 raeburn 14872: input: six args -- filename (decluttered), course number, course domain,
14873: url, symb (if registered) and group (if this is a
14874: group item -- e.g., bulletin board, group page etc.).
1.1195 raeburn 14875:
1.1196 raeburn 14876: output: array of five scalars --
1.1195 raeburn 14877: $cfile -- url for file editing if editable on current server
14878: $home -- homeserver of resource (i.e., for author if published,
14879: or course if uploaded.).
14880: $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 14881: $forceedit -- 1 if icon/link should be to go to edit mode
14882: $forceview -- 1 if icon/link should be to go to view mode
1.1195 raeburn 14883:
14884: =item *
14885:
14886: is_course_upload($file,$cnum,$cdom)
14887:
14888: Used in course context to determine if current file was uploaded to
14889: the course (i.e., would be found in /userfiles/docs on the course's
14890: homeserver.
14891:
14892: input: 3 args -- filename (decluttered), course number and course domain.
14893: output: boolean -- 1 if file was uploaded.
14894:
1.243 albertel 14895: =back
14896:
14897: =head2 Storing/Retreiving Data
14898:
14899: =over 4
1.191 harris41 14900:
14901: =item *
14902:
1.1269 raeburn 14903: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
14904: permanently for this url; hashref needs to be given and should be a \%hashname;
14905: the remaining args aren't required and if they aren't passed or are '' they will
14906: be derived from the env (with the exception of $laststore, which is an
14907: optional arg used when a user's submission is stored in grading).
14908: $laststore is $version=$timestamp, where $version is the most recent version
14909: number retrieved for the corresponding $symb in the $namespace db file, and
14910: $timestamp is the timestamp for that transaction (UNIX time).
14911: $laststore is currently only passed when cstore() is called by
14912: structuretags::finalize_storage().
1.191 harris41 14913:
14914: =item *
14915:
1.1269 raeburn 14916: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
14917: but uses critical subroutine
1.191 harris41 14918:
14919: =item *
14920:
1.243 albertel 14921: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
14922: all args are optional
1.191 harris41 14923:
14924: =item *
14925:
1.717 albertel 14926: dumpstore($namespace,$udom,$uname,$regexp,$range) :
14927: dumps the complete (or key matching regexp) namespace into a hash
14928: ($udom, $uname, $regexp, $range are optional) for a namespace that is
14929: normally &store()ed into
14930:
14931: $range should be either an integer '100' (give me the first 100
14932: matching records)
14933: or be two integers sperated by a - with no spaces
14934: '30-50' (give me the 30th through the 50th matching
14935: records)
14936:
14937:
14938: =item *
14939:
1.1269 raeburn 14940: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
1.717 albertel 14941: replaces a &store() version of data with a replacement set of data
14942: for a particular resource in a namespace passed in the $storehash hash
1.1269 raeburn 14943: reference. If $tolog is true, the transaction is logged in the courselog
14944: with an action=PUTSTORE.
1.717 albertel 14945:
14946: =item *
14947:
1.243 albertel 14948: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
14949: works very similar to store/cstore, but all data is stored in a
14950: temporary location and can be reset using tmpreset, $storehash should
14951: be a hash reference, returns nothing on success
1.191 harris41 14952:
14953: =item *
14954:
1.243 albertel 14955: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
14956: similar to restore, but all data is stored in a temporary location and
14957: can be reset using tmpreset. Returns a hash of values on success,
14958: error string otherwise.
1.191 harris41 14959:
14960: =item *
14961:
1.243 albertel 14962: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
14963: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 14964:
14965: =item *
14966:
1.243 albertel 14967: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
14968: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 14969:
14970: =item *
14971:
1.243 albertel 14972: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
14973: namesp ($udom and $uname are optional)
1.191 harris41 14974:
14975: =item *
14976:
1.702 albertel 14977: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 14978: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 14979: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 14980:
1.702 albertel 14981: $range should be either an integer '100' (give me the first 100
14982: matching records)
14983: or be two integers sperated by a - with no spaces
14984: '30-50' (give me the 30th through the 50th matching
14985: records)
1.449 matthew 14986: =item *
14987:
14988: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
14989: $store can be a scalar, an array reference, or if the amount to be
14990: incremented is > 1, a hash reference.
14991:
14992: ($udom and $uname are optional)
1.191 harris41 14993:
14994: =item *
14995:
1.243 albertel 14996: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
14997: ($udom and $uname are optional)
1.191 harris41 14998:
14999: =item *
15000:
1.243 albertel 15001: cput($namespace,$storehash,$udom,$uname) : critical put
15002: ($udom and $uname are optional)
1.191 harris41 15003:
15004: =item *
15005:
1.748 albertel 15006: newput($namespace,$storehash,$udom,$uname) :
15007:
15008: Attempts to store the items in the $storehash, but only if they don't
15009: currently exist, if this succeeds you can be certain that you have
15010: successfully created a new key value pair in the $namespace db.
15011:
15012:
15013: Args:
15014: $namespace: name of database to store values to
15015: $storehash: hashref to store to the db
15016: $udom: (optional) domain of user containing the db
15017: $uname: (optional) name of user caontaining the db
15018:
15019: Returns:
15020: 'ok' -> succeeded in storing all keys of $storehash
15021: 'key_exists: <key>' -> failed to anything out of $storehash, as at
15022: least <key> already existed in the db (other
15023: requested keys may also already exist)
1.967 bisitz 15024: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 15025: 'con_lost' -> unable to contact request server
15026: 'refused' -> action was not allowed by remote machine
15027:
15028:
15029: =item *
15030:
1.243 albertel 15031: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
15032: reference filled in from namesp (encrypts the return communication)
15033: ($udom and $uname are optional)
1.191 harris41 15034:
15035: =item *
15036:
1.243 albertel 15037: log($udom,$name,$home,$message) : write to permanent log for user; use
15038: critical subroutine
15039:
1.806 raeburn 15040: =item *
15041:
1.860 raeburn 15042: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
15043: array reference filled in from namespace found in domain level on either
15044: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 15045:
15046: =item *
15047:
1.860 raeburn 15048: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
15049: domain level either on specified domain server ($uhome) or primary domain
15050: server ($udom and $uhome are optional)
1.806 raeburn 15051:
1.943 raeburn 15052: =item *
15053:
1.1240 raeburn 15054: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
15055: for: authentication, language, quotas, timezone, date locale, and portal URL in
15056: the target domain.
15057:
15058: May also include additional key => value pairs for the following groups:
15059:
15060: =over
15061:
15062: =item
15063: disk quotas (MB allocated by default to portfolios and authoring spaces).
15064:
15065: =over
15066:
15067: =item defaultquota, authorquota
15068:
15069: =back
15070:
15071: =item
15072: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
15073: portfolio for users).
15074:
15075: =over
15076:
15077: =item
15078: aboutme, blog, webdav, portfolio
15079:
15080: =back
15081:
15082: =item
15083: requestcourses: ability to request courses, and how requests are processed.
15084:
15085: =over
15086:
15087: =item
1.1305 raeburn 15088: official, unofficial, community, textbook, placement
1.1240 raeburn 15089:
15090: =back
15091:
15092: =item
15093: inststatus: types of institutional affiliation, and order in which they are displayed.
15094:
15095: =over
15096:
15097: =item
1.1256 raeburn 15098: inststatustypes, inststatusorder, inststatusguest
1.1240 raeburn 15099:
15100: =back
15101:
15102: =item
15103: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
15104: for course's uploaded content.
15105:
15106: =over
15107:
15108: =item
1.1246 raeburn 15109: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
1.1305 raeburn 15110: communityquota, textbookquota, placementquota
1.1240 raeburn 15111:
15112: =back
15113:
15114: =item
15115: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
15116: on your servers.
15117:
15118: =over
15119:
15120: =item
15121: remotesessions, hostedsessions
15122:
15123: =back
15124:
15125: =back
15126:
15127: In cases where a domain coordinator has never used the "Set Domain Configuration"
15128: utility to create a configuration.db file on a domain's primary library server
15129: only the following domain defaults: auth_def, auth_arg_def, lang_def
15130: -- corresponding values are authentication type (internal, krb4, krb5,
15131: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
15132: will be available. Values are retrieved from cache (if current), unless the
15133: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
15134: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
15135:
15136: Typical usage:
1.943 raeburn 15137:
1.1240 raeburn 15138: %domdefaults = &get_domain_defaults($target_domain);
1.943 raeburn 15139:
1.243 albertel 15140: =back
15141:
15142: =head2 Network Status Functions
15143:
15144: =over 4
1.191 harris41 15145:
15146: =item *
15147:
1.1137 raeburn 15148: dirlist() : return directory list based on URI (first arg).
15149:
15150: Inputs: 1 required, 5 optional.
15151:
15152: =over
15153:
15154: =item
15155: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
15156:
15157: =item
15158: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
15159:
15160: =item
15161: $username - username of user/course to be listed. Extracted from $uri if absent.
15162:
15163: =item
15164: $getpropath - boolean: 1 if prepend path using &propath().
15165:
15166: =item
15167: $getuserdir - boolean: 1 if prepend path for "userfiles".
15168:
15169: =item
15170: $alternateRoot - path to prepend in place of path from $uri.
15171:
15172: =back
15173:
15174: Returns: Array of up to two items.
15175:
15176: =over
15177:
15178: a reference to an array of files/subdirectories
15179:
15180: =over
15181:
15182: Each element in the array of files/subdirectories is a & separated list of
15183: item name and the result of running stat on the item. If dirlist was requested
15184: for a file instead of a directory, the item name will be ''. For a directory
15185: listing, if the item is a metadata file, the element will end &N&M
15186: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
15187: default copyright set (1).
15188:
15189: =back
15190:
15191: a scalar containing error condition (if encountered).
15192:
15193: =over
15194:
15195: =item
15196: no_host (no homeserver identified for $username:$domain).
15197:
15198: =item
15199: no_such_host (server contacted for listing not identified as valid host).
15200:
15201: =item
15202: con_lost (connection to remote server failed).
15203:
15204: =item
15205: refused (invalid $username:$domain received on lond side).
15206:
15207: =item
15208: no_such_dir (directory at specified path on lond side does not exist).
15209:
15210: =item
15211: empty (directory at specified path on lond side is empty).
15212:
15213: =over
15214:
15215: This is currently not encountered because the &ls3, &ls2,
15216: &ls (_handler) routines on the lond side do not filter out
15217: . and .. from a directory listing.
15218:
15219: =back
15220:
15221: =back
15222:
15223: =back
1.191 harris41 15224:
15225: =item *
15226:
1.243 albertel 15227: spareserver() : find server with least workload from spare.tab
15228:
1.986 foxr 15229:
15230: =item *
15231:
15232: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
15233: if there is no corresponding loncapa host.
15234:
1.243 albertel 15235: =back
15236:
1.986 foxr 15237:
1.243 albertel 15238: =head2 Apache Request
15239:
15240: =over 4
1.191 harris41 15241:
15242: =item *
15243:
1.243 albertel 15244: ssi($url,%hash) : server side include, does a complete request cycle on url to
15245: localhost, posts hash
15246:
15247: =back
15248:
15249: =head2 Data to String to Data
15250:
15251: =over 4
1.191 harris41 15252:
15253: =item *
15254:
1.243 albertel 15255: hash2str(%hash) : convert a hash into a string complete with escaping and '='
15256: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 15257:
15258: =item *
15259:
1.243 albertel 15260: hashref2str($hashref) : convert a hashref into a string complete with
15261: escaping and '=' and '&' separators, supports elements that are
15262: arrayrefs and hashrefs
1.191 harris41 15263:
15264: =item *
15265:
1.243 albertel 15266: arrayref2str($arrayref) : convert an arrayref into a string complete
15267: with escaping and '&' separators, supports elements that are arrayrefs
15268: and hashrefs
1.191 harris41 15269:
15270: =item *
15271:
1.243 albertel 15272: str2hash($string) : convert string to hash using unescaping and
15273: splitting on '=' and '&', supports elements that are arrayrefs and
15274: hashrefs
1.191 harris41 15275:
15276: =item *
15277:
1.243 albertel 15278: str2array($string) : convert string to hash using unescaping and
15279: splitting on '&', supports elements that are arrayrefs and hashrefs
15280:
15281: =back
15282:
15283: =head2 Logging Routines
15284:
15285:
15286: These routines allow one to make log messages in the lonnet.log and
15287: lonnet.perm logfiles.
1.191 harris41 15288:
1.1119 foxr 15289: =over 4
15290:
1.191 harris41 15291: =item *
15292:
1.243 albertel 15293: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 15294:
15295: =item *
15296:
1.243 albertel 15297: logthis() : append message to the normal lonnet.log file, it gets
15298: preiodically rolled over and deleted.
1.191 harris41 15299:
15300: =item *
15301:
1.243 albertel 15302: logperm() : append a permanent message to lonnet.perm.log, this log
15303: file never gets deleted by any automated portion of the system, only
15304: messages of critical importance should go in here.
15305:
1.1119 foxr 15306:
1.243 albertel 15307: =back
15308:
15309: =head2 General File Helper Routines
15310:
15311: =over 4
1.191 harris41 15312:
15313: =item *
15314:
1.481 raeburn 15315: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
15316: (a) files in /uploaded
15317: (i) If a local copy of the file exists -
15318: compares modification date of local copy with last-modified date for
15319: definitive version stored on home server for course. If local copy is
15320: stale, requests a new version from the home server and stores it.
15321: If the original has been removed from the home server, then local copy
15322: is unlinked.
15323: (ii) If local copy does not exist -
15324: requests the file from the home server and stores it.
15325:
15326: If $caller is 'uploadrep':
15327: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
15328: for request for files originally uploaded via DOCS.
15329: - returns 'ok' if fresh local copy now available, -1 otherwise.
15330:
15331: Otherwise:
15332: This indicates a call from the content generation phase of the request.
15333: - returns the entire contents of the file or -1.
15334:
15335: (b) files in /res
15336: - returns the entire contents of a file or -1;
15337: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 15338:
1.712 albertel 15339:
15340: =item *
15341:
15342: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
15343: reference
15344:
15345: returns either a stat() list of data about the file or an empty list
15346: if the file doesn't exist or couldn't find out about it (connection
15347: problems or user unknown)
15348:
1.191 harris41 15349: =item *
15350:
1.243 albertel 15351: filelocation($dir,$file) : returns file system location of a file
15352: based on URI; meant to be "fairly clean" absolute reference, $dir is a
15353: directory that relative $file lookups are to looked in ($dir of /a/dir
15354: and a file of ../bob will become /a/bob)
1.191 harris41 15355:
15356: =item *
15357:
15358: hreflocation($dir,$file) : returns file system location or a URL; same as
15359: filelocation except for hrefs
15360:
15361: =item *
15362:
1.1261 raeburn 15363: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
15364: also removes beginning /home/httpd/html unless /priv/ follows it.
1.191 harris41 15365:
1.243 albertel 15366: =back
15367:
1.608 albertel 15368: =head2 Usererfile file routines (/uploaded*)
15369:
15370: =over 4
15371:
15372: =item *
15373:
15374: userfileupload(): main rotine for putting a file in a user or course's
15375: filespace, arguments are,
15376:
1.620 albertel 15377: formname - required - this is the name of the element in $env where the
1.608 albertel 15378: filename, and the contents of the file to create/modifed exist
1.620 albertel 15379: the filename is in $env{'form.'.$formname.'.filename'} and the
15380: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 15381: context - if coursedoc, store the file in the course of the active role
15382: of the current user;
15383: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
15384: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 15385: subdir - required - subdirectory to put the file in under ../userfiles/
15386: if undefined, it will be placed in "unknown"
15387:
15388: (This routine calls clean_filename() to remove any dangerous
15389: characters from the filename, and then calls finuserfileupload() to
15390: complete the transaction)
15391:
15392: returns either the url of the uploaded file (/uploaded/....) if successful
15393: and /adm/notfound.html if unsuccessful
15394:
15395: =item *
15396:
15397: clean_filename(): routine for cleaing a filename up for storage in
15398: userfile space, argument is:
15399:
15400: filename - proposed filename
15401:
15402: returns: the new clean filename
15403:
15404: =item *
15405:
1.1090 raeburn 15406: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 15407: userspace, probably shouldn't be called directly
15408:
15409: docuname: username or courseid of destination for the file
15410: docudom: domain of user/course of destination for the file
15411: formname: same as for userfileupload()
1.1090 raeburn 15412: fname: filename (including subdirectories) for the file
15413: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
15414: allfiles: reference to hash used to store objects found by parser
15415: codebase: reference to hash used for codebases of java objects found by parser
15416: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
15417: thumbheight: height (pixels) of thumbnail to be created for uploaded image
15418: resizewidth: width to be used to resize image using resizeImage from ImageMagick
15419: resizeheight: height to be used to resize image using resizeImage from ImageMagick
15420: context: if 'overwrite', will move the uploaded file from its temporary location to
15421: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 15422: mimetype: reference to scalar to accommodate mime type determined
15423: from File::MMagic if $parser = parse.
1.608 albertel 15424:
15425: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 15426: and /adm/notfound.html if unsuccessful (or an error message if context
15427: was 'overwrite').
15428:
1.608 albertel 15429:
15430: =item *
15431:
15432: renameuserfile(): renames an existing userfile to a new name
15433:
15434: Args:
15435: docuname: username or courseid of destination for the file
15436: docudom: domain of user/course of destination for the file
15437: old: current file name (including any subdirs under userfiles)
15438: new: desired file name (including any subdirs under userfiles)
15439:
15440: =item *
15441:
15442: mkdiruserfile(): creates a directory is a userfiles dir
15443:
15444: Args:
15445: docuname: username or courseid of destination for the file
15446: docudom: domain of user/course of destination for the file
15447: dir: dir to create (including any subdirs under userfiles)
15448:
15449: =item *
15450:
15451: removeuserfile(): removes a file that exists in userfiles
15452:
15453: Args:
15454: docuname: username or courseid of destination for the file
15455: docudom: domain of user/course of destination for the file
15456: fname: filname to delete (including any subdirs under userfiles)
15457:
15458: =item *
15459:
15460: removeuploadedurl(): convience function for removeuserfile()
15461:
15462: Args:
15463: url: a full /uploaded/... url to delete
15464:
1.747 albertel 15465: =item *
15466:
15467: get_portfile_permissions():
15468: Args:
15469: domain: domain of user or course contain the portfolio files
15470: user: name of user or num of course contain the portfolio files
15471: Returns:
15472: hashref of a dump of the proper file_permissions.db
15473:
15474:
15475: =item *
15476:
15477: get_access_controls():
15478:
15479: Args:
15480: current_permissions: the hash ref returned from get_portfile_permissions()
15481: group: (optional) the group you want the files associated with
15482: file: (optional) the file you want access info on
15483:
15484: Returns:
1.749 raeburn 15485: a hash (keys are file names) of hashes containing
15486: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
15487: values are XML containing access control settings (see below)
1.747 albertel 15488:
15489: Internal notes:
15490:
1.749 raeburn 15491: access controls are stored in file_permissions.db as key=value pairs.
15492: key -> path to file/file_name\0uniqueID:scope_end_start
15493: where scope -> public,guest,course,group,domains or users.
15494: end -> UNIX time for end of access (0 -> no end date)
15495: start -> UNIX time for start of access
15496:
15497: value -> XML description of access control
15498: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
15499: <start></start>
15500: <end></end>
15501:
15502: <password></password> for scope type = guest
15503:
15504: <domain></domain> for scope type = course or group
15505: <number></number>
15506: <roles id="">
15507: <role></role>
15508: <access></access>
15509: <section></section>
15510: <group></group>
15511: </roles>
15512:
15513: <dom></dom> for scope type = domains
15514:
15515: <users> for scope type = users
15516: <user>
15517: <uname></uname>
15518: <udom></udom>
15519: </user>
15520: </users>
15521: </scope>
15522:
15523: Access data is also aggregated for each file in an additional key=value pair:
15524: key -> path to file/file_name\0accesscontrol
15525: value -> reference to hash
15526: hash contains key = value pairs
15527: where key = uniqueID:scope_end_start
15528: value = UNIX time record was last updated
15529:
15530: Used to improve speed of look-ups of access controls for each file.
15531:
15532: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
15533:
1.1198 raeburn 15534: =item *
15535:
1.749 raeburn 15536: modify_access_controls():
15537:
15538: Modifies access controls for a portfolio file
15539: Args
15540: 1. file name
15541: 2. reference to hash of required changes,
15542: 3. domain
15543: 4. username
15544: where domain,username are the domain of the portfolio owner
15545: (either a user or a course)
15546:
15547: Returns:
15548: 1. result of additions or updates ('ok' or 'error', with error message).
15549: 2. result of deletions ('ok' or 'error', with error message).
15550: 3. reference to hash of any new or updated access controls.
15551: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
15552: key = integer (inbound ID)
1.1198 raeburn 15553: value = uniqueID
15554:
15555: =item *
15556:
15557: get_timebased_id():
15558:
15559: Attempts to get a unique timestamp-based suffix for use with items added to a
15560: course via the Course Editor (e.g., folders, composite pages,
15561: group bulletin boards).
15562:
15563: Args: (first three required; six others optional)
15564:
15565: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
15566: docssequence, or name of group
15567:
15568: 2. keyid (alphanumeric): name of temporary locking key in hash,
15569: e.g., num, boardids
15570:
15571: 3. namespace: name of gdbm file used to store suffixes already assigned;
15572: file will be named nohist_namespace.db
15573:
15574: 4. cdom: domain of course; default is current course domain from %env
15575:
15576: 5. cnum: course number; default is current course number from %env
15577:
15578: 6. idtype: set to concat if an additional digit is to be appended to the
15579: unix timestamp to form the suffix, if the plain timestamp is already
15580: in use. Default is to not do this, but simply increment the unix
15581: timestamp by 1 until a unique key is obtained.
15582:
15583: 7. who: holder of locking key; defaults to user:domain for user.
15584:
15585: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
15586: retrying); default is 3.
15587:
15588: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
15589:
15590: Returns:
15591:
15592: 1. suffix obtained (numeric)
15593:
15594: 2. result of deleting locking key (ok if deleted, or lock never obtained)
15595:
15596: 3. error: contains (localized) error message if an error occurred.
15597:
1.747 albertel 15598:
1.608 albertel 15599: =back
15600:
1.243 albertel 15601: =head2 HTTP Helper Routines
15602:
15603: =over 4
15604:
1.191 harris41 15605: =item *
15606:
15607: escape() : unpack non-word characters into CGI-compatible hex codes
15608:
15609: =item *
15610:
15611: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
15612:
1.243 albertel 15613: =back
15614:
15615: =head1 PRIVATE SUBROUTINES
15616:
15617: =head2 Underlying communication routines (Shouldn't call)
15618:
15619: =over 4
15620:
15621: =item *
15622:
15623: subreply() : tries to pass a message to lonc, returns con_lost if incapable
15624:
15625: =item *
15626:
15627: reply() : uses subreply to send a message to remote machine, logs all failures
15628:
15629: =item *
15630:
15631: critical() : passes a critical message to another server; if cannot
15632: get through then place message in connection buffer directory and
15633: returns con_delayed, if incapable of saving message, returns
15634: con_failed
15635:
15636: =item *
15637:
15638: reconlonc() : tries to reconnect lonc client processes.
15639:
15640: =back
15641:
15642: =head2 Resource Access Logging
15643:
15644: =over 4
15645:
15646: =item *
15647:
15648: flushcourselogs() : flush (save) buffer logs and access logs
15649:
15650: =item *
15651:
15652: courselog($what) : save message for course in hash
15653:
15654: =item *
15655:
15656: courseacclog($what) : save message for course using &courselog(). Perform
15657: special processing for specific resource types (problems, exams, quizzes, etc).
15658:
1.191 harris41 15659: =item *
15660:
15661: goodbye() : flush course logs and log shutting down; it is called in srm.conf
15662: as a PerlChildExitHandler
1.243 albertel 15663:
15664: =back
15665:
15666: =head2 Other
15667:
15668: =over 4
15669:
15670: =item *
15671:
15672: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 15673:
15674: =back
15675:
15676: =cut
1.877 foxr 15677:
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