Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1204
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1204 ! raeburn 4: # $Id: lonnet.pm,v 1.1203 2012/11/30 16:50:30 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;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.1182 foxr 78:
1.1173 foxr 79: use Encode;
80:
1.871 albertel 81: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 82: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
83: %managerstab);
1.871 albertel 84:
85: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
86: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
87: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 88: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 89:
1.1 albertel 90: use IO::Socket;
1.31 www 91: use GDBM_File;
1.208 albertel 92: use HTML::LCParser;
1.88 www 93: use Fcntl qw(:flock);
1.870 albertel 94: use Storable qw(thaw nfreeze);
1.539 albertel 95: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 96: use Cache::Memcached;
1.676 albertel 97: use Digest::MD5;
1.790 albertel 98: use Math::Random;
1.1024 raeburn 99: use File::MMagic;
1.807 albertel 100: use LONCAPA qw(:DEFAULT :match);
1.740 www 101: use LONCAPA::Configuration;
1.1160 www 102: use LONCAPA::lonmetadata;
1.1167 droeschl 103: use LONCAPA::Lond;
1.1117 foxr 104:
1.1090 raeburn 105: use File::Copy;
1.676 albertel 106:
1.195 www 107: my $readit;
1.550 foxr 108: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 109:
1.619 albertel 110: require Exporter;
111:
112: our @ISA = qw (Exporter);
113: our @EXPORT = qw(%env);
114:
1.449 matthew 115:
1.1187 raeburn 116: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 117: {
118: my $logid;
1.1187 raeburn 119: sub write_log {
1.1188 raeburn 120: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
1.1184 raeburn 121: if ($context eq 'course') {
122: if (($cnum eq '') || ($cdom eq '')) {
123: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
124: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
125: }
1.957 raeburn 126: }
1.1184 raeburn 127: $logid ++;
1.957 raeburn 128: my $now = time();
129: my $id=$now.'00000'.$$.'00000'.$logid;
1.1184 raeburn 130: my $logentry = {
131: $id => {
132: 'exe_uname' => $env{'user.name'},
133: 'exe_udom' => $env{'user.domain'},
134: 'exe_time' => $now,
135: 'exe_ip' => $ENV{'REMOTE_ADDR'},
136: 'delflag' => $delflag,
137: 'logentry' => $storehash,
138: 'uname' => $uname,
139: 'udom' => $udom,
140: }
141: };
142: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 143: }
144: }
1.1 albertel 145:
1.163 harris41 146: sub logtouch {
147: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 148: unless (-e "$execdir/logs/lonnet.log") {
149: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 150: close $fh;
151: }
152: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
153: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
154: }
155:
1.1 albertel 156: sub logthis {
157: my $message=shift;
158: my $execdir=$perlvar{'lonDaemons'};
159: my $now=time;
160: my $local=localtime($now);
1.448 albertel 161: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 162: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
163: print $fh $logstring;
1.448 albertel 164: close($fh);
165: }
1.1 albertel 166: return 1;
167: }
168:
169: sub logperm {
170: my $message=shift;
171: my $execdir=$perlvar{'lonDaemons'};
172: my $now=time;
173: my $local=localtime($now);
1.448 albertel 174: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
175: print $fh "$now:$message:$local\n";
176: close($fh);
177: }
1.1 albertel 178: return 1;
179: }
180:
1.850 albertel 181: sub create_connection {
1.853 albertel 182: my ($hostname,$lonid) = @_;
1.851 albertel 183: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 184: Type => SOCK_STREAM,
185: Timeout => 10);
186: return 0 if (!$client);
1.890 albertel 187: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 188: my $result = <$client>;
189: chomp($result);
190: return 1 if ($result eq 'done');
191: return 0;
192: }
193:
1.983 raeburn 194: sub get_server_timezone {
195: my ($cnum,$cdom) = @_;
196: my $home=&homeserver($cnum,$cdom);
197: if ($home ne 'no_host') {
198: my $cachetime = 24*3600;
199: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
200: if (defined($cached)) {
201: return $timezone;
202: } else {
203: my $timezone = &reply('servertimezone',$home);
204: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
205: }
206: }
207: }
1.850 albertel 208:
1.1106 raeburn 209: sub get_server_distarch {
210: my ($lonhost,$ignore_cache) = @_;
211: if (defined($lonhost)) {
212: if (!defined(&hostname($lonhost))) {
213: return;
214: }
215: my $cachetime = 12*3600;
216: if (!$ignore_cache) {
217: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
218: if (defined($cached)) {
219: return $distarch;
220: }
221: }
222: my $rep = &reply('serverdistarch',$lonhost);
223: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
224: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
225: $rep eq '') {
226: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
227: }
228: }
229: return;
230: }
231:
1.993 raeburn 232: sub get_server_loncaparev {
1.1073 raeburn 233: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 234: if (defined($lonhost)) {
235: if (!defined(&hostname($lonhost))) {
236: undef($lonhost);
237: }
238: }
239: if (!defined($lonhost)) {
240: if (defined(&domain($dom,'primary'))) {
241: $lonhost=&domain($dom,'primary');
242: if ($lonhost eq 'no_host') {
243: undef($lonhost);
244: }
245: }
246: }
247: if (defined($lonhost)) {
1.1073 raeburn 248: my $cachetime = 12*3600;
249: if (!$ignore_cache) {
250: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
251: if (defined($cached)) {
252: return $loncaparev;
253: }
254: }
255: my ($answer,$loncaparev);
256: my @ids=¤t_machine_ids();
257: if (grep(/^\Q$lonhost\E$/,@ids)) {
258: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 259: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 260: $loncaparev = $1;
261: }
262: } else {
263: $answer = &reply('serverloncaparev',$lonhost);
264: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
265: if ($caller eq 'loncron') {
266: my $ua=new LWP::UserAgent;
1.1082 raeburn 267: $ua->timeout(4);
1.1073 raeburn 268: my $protocol = $protocol{$lonhost};
269: $protocol = 'http' if ($protocol ne 'https');
270: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
271: my $request=new HTTP::Request('GET',$url);
272: my $response=$ua->request($request);
273: unless ($response->is_error()) {
274: my $content = $response->content;
1.1081 raeburn 275: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 276: $loncaparev = $1;
277: }
278: }
279: } else {
280: $loncaparev = $loncaparevs{$lonhost};
281: }
1.1081 raeburn 282: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 283: $loncaparev = $1;
284: }
1.993 raeburn 285: }
1.1073 raeburn 286: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 287: }
288: }
289:
1.1074 raeburn 290: sub get_server_homeID {
291: my ($hostname,$ignore_cache,$caller) = @_;
292: unless ($ignore_cache) {
293: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
294: if (defined($cached)) {
295: return $serverhomeID;
296: }
297: }
298: my $cachetime = 12*3600;
299: my $serverhomeID;
300: if ($caller eq 'loncron') {
301: my @machine_ids = &machine_ids($hostname);
302: foreach my $id (@machine_ids) {
303: my $response = &reply('serverhomeID',$id);
304: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
305: $serverhomeID = $response;
306: last;
307: }
308: }
309: if ($serverhomeID eq '') {
310: $serverhomeID = $machine_ids[-1];
311: }
312: } else {
313: $serverhomeID = $serverhomeIDs{$hostname};
314: }
315: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
316: }
317:
1.1121 raeburn 318: sub get_remote_globals {
319: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 320: my ($result,%returnhash,%whatneeded);
321: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 322: foreach my $what (sort(keys(%{$whathash}))) {
323: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 324: my ($response,$cached);
1.1121 raeburn 325: unless ($ignore_cache) {
1.1125 raeburn 326: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 327: }
328: if (defined($cached)) {
1.1125 raeburn 329: $returnhash{$what} = $response;
1.1121 raeburn 330: } else {
1.1125 raeburn 331: $whatneeded{$what} = 1;
1.1121 raeburn 332: }
333: }
1.1125 raeburn 334: if (keys(%whatneeded) == 0) {
335: $result = 'ok';
336: } else {
1.1121 raeburn 337: my $requested = &freeze_escape(\%whatneeded);
338: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 339: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
340: ($rep eq 'unknown_cmd')) {
341: $result = $rep;
342: } else {
343: $result = 'ok';
1.1121 raeburn 344: my @pairs=split(/\&/,$rep);
1.1125 raeburn 345: foreach my $item (@pairs) {
346: my ($key,$value)=split(/=/,$item,2);
347: my $what = &unescape($key);
348: my $hashid = $lonhost.'-'.$what;
349: $returnhash{$what}=&thaw_unescape($value);
350: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 351: }
352: }
353: }
354: }
1.1125 raeburn 355: return ($result,\%returnhash);
1.1121 raeburn 356: }
357:
1.1124 raeburn 358: sub remote_devalidate_cache {
359: my ($lonhost,$name,$id) = @_;
1.1130 raeburn 360: my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
1.1124 raeburn 361: return $response;
362: }
363:
1.1 albertel 364: # -------------------------------------------------- Non-critical communication
365: sub subreply {
366: my ($cmd,$server)=@_;
1.838 albertel 367: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 368: #
369: # With loncnew process trimming, there's a timing hole between lonc server
370: # process exit and the master server picking up the listen on the AF_UNIX
371: # socket. In that time interval, a lock file will exist:
372:
373: my $lockfile=$peerfile.".lock";
374: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
375: sleep(1);
376: }
377: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 378: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 379: #
1.550 foxr 380: # We'll give the connection a few tries before abandoning it. If
381: # connection is not possible, we'll con_lost back to the client.
382: #
383: my $client;
384: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
385: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
386: Type => SOCK_STREAM,
387: Timeout => 10);
1.869 albertel 388: if ($client) {
1.550 foxr 389: last; # Connected!
1.850 albertel 390: } else {
1.853 albertel 391: &create_connection(&hostname($server),$server);
1.550 foxr 392: }
1.850 albertel 393: sleep(1); # Try again later if failed connection.
1.550 foxr 394: }
395: my $answer;
396: if ($client) {
1.704 albertel 397: print $client "sethost:$server:$cmd\n";
1.550 foxr 398: $answer=<$client>;
399: if (!$answer) { $answer="con_lost"; }
400: chomp($answer);
401: } else {
402: $answer = 'con_lost'; # Failed connection.
403: }
1.1 albertel 404: return $answer;
405: }
406:
407: sub reply {
408: my ($cmd,$server)=@_;
1.838 albertel 409: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 410: my $answer=subreply($cmd,$server);
1.65 www 411: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 412: &logthis("<font color=\"blue\">WARNING:".
1.12 www 413: " $cmd to $server returned $answer</font>");
414: }
1.1 albertel 415: return $answer;
416: }
417:
418: # ----------------------------------------------------------- Send USR1 to lonc
419:
420: sub reconlonc {
1.891 albertel 421: my ($lonid) = @_;
422: my $hostname = &hostname($lonid);
423: if ($lonid) {
424: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
425: if ($hostname && -e $peerfile) {
426: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
427: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
428: Type => SOCK_STREAM,
429: Timeout => 10);
430: if ($client) {
431: print $client ("reset_retries\n");
432: my $answer=<$client>;
433: #reset just this one.
434: }
435: }
436: return;
437: }
438:
1.836 www 439: &logthis("Trying to reconnect lonc");
1.1 albertel 440: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 441: if (open(my $fh,"<$loncfile")) {
1.1 albertel 442: my $loncpid=<$fh>;
443: chomp($loncpid);
444: if (kill 0 => $loncpid) {
445: &logthis("lonc at pid $loncpid responding, sending USR1");
446: kill USR1 => $loncpid;
447: sleep 1;
1.836 www 448: } else {
1.12 www 449: &logthis(
1.672 albertel 450: "<font color=\"blue\">WARNING:".
1.12 www 451: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 452: }
453: } else {
1.836 www 454: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 455: }
456: }
457:
458: # ------------------------------------------------------ Critical communication
1.12 www 459:
1.1 albertel 460: sub critical {
461: my ($cmd,$server)=@_;
1.838 albertel 462: unless (&hostname($server)) {
1.672 albertel 463: &logthis("<font color=\"blue\">WARNING:".
1.89 www 464: " Critical message to unknown server ($server)</font>");
465: return 'no_such_host';
466: }
1.1 albertel 467: my $answer=reply($cmd,$server);
468: if ($answer eq 'con_lost') {
469: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 470: my $answer=reply($cmd,$server);
1.1 albertel 471: if ($answer eq 'con_lost') {
472: my $now=time;
473: my $middlename=$cmd;
1.5 www 474: $middlename=substr($middlename,0,16);
1.1 albertel 475: $middlename=~s/\W//g;
476: my $dfilename=
1.305 www 477: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
478: $dumpcount++;
1.1 albertel 479: {
1.448 albertel 480: my $dfh;
481: if (open($dfh,">$dfilename")) {
482: print $dfh "$cmd\n";
483: close($dfh);
484: }
1.1 albertel 485: }
486: sleep 2;
487: my $wcmd='';
488: {
1.448 albertel 489: my $dfh;
490: if (open($dfh,"<$dfilename")) {
491: $wcmd=<$dfh>;
492: close($dfh);
493: }
1.1 albertel 494: }
495: chomp($wcmd);
1.7 www 496: if ($wcmd eq $cmd) {
1.672 albertel 497: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 498: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 499: &logperm("D:$server:$cmd");
500: return 'con_delayed';
501: } else {
1.672 albertel 502: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 503: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 504: &logperm("F:$server:$cmd");
505: return 'con_failed';
506: }
507: }
508: }
509: return $answer;
1.405 albertel 510: }
511:
1.755 albertel 512: # ------------------------------------------- check if return value is an error
513:
514: sub error {
515: my ($result) = @_;
1.756 albertel 516: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 517: if ($2 == 2) { return undef; }
518: return $1;
519: }
520: return undef;
521: }
522:
1.783 albertel 523: sub convert_and_load_session_env {
524: my ($lonidsdir,$handle)=@_;
525: my @profile;
526: {
1.917 albertel 527: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
528: if (!$opened) {
1.915 albertel 529: return 0;
530: }
1.783 albertel 531: flock($idf,LOCK_SH);
532: @profile=<$idf>;
533: close($idf);
534: }
535: my %temp_env;
536: foreach my $line (@profile) {
1.786 albertel 537: if ($line !~ m/=/) {
538: return 0;
539: }
1.783 albertel 540: chomp($line);
541: my ($envname,$envvalue)=split(/=/,$line,2);
542: $temp_env{&unescape($envname)} = &unescape($envvalue);
543: }
544: unlink("$lonidsdir/$handle.id");
545: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
546: 0640)) {
547: %disk_env = %temp_env;
548: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
549: untie(%disk_env);
550: }
1.786 albertel 551: return 1;
1.783 albertel 552: }
553:
1.374 www 554: # ------------------------------------------- Transfer profile into environment
1.780 albertel 555: my $env_loaded;
556: sub transfer_profile_to_env {
1.788 albertel 557: my ($lonidsdir,$handle,$force_transfer) = @_;
558: if (!$force_transfer && $env_loaded) { return; }
1.374 www 559:
1.720 albertel 560: if (!defined($lonidsdir)) {
561: $lonidsdir = $perlvar{'lonIDsDir'};
562: }
563: if (!defined($handle)) {
564: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
565: }
566:
1.786 albertel 567: my $convert;
568: {
1.917 albertel 569: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
570: if (!$opened) {
1.915 albertel 571: return;
572: }
1.786 albertel 573: flock($idf,LOCK_SH);
574: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
575: &GDBM_READER(),0640)) {
576: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
577: untie(%disk_env);
578: } else {
579: $convert = 1;
580: }
581: }
582: if ($convert) {
583: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
584: &logthis("Failed to load session, or convert session.");
585: }
1.374 www 586: }
1.783 albertel 587:
1.786 albertel 588: my %remove;
1.783 albertel 589: while ( my $envname = each(%env) ) {
1.433 matthew 590: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
591: if ($time < time-300) {
1.783 albertel 592: $remove{$key}++;
1.433 matthew 593: }
594: }
595: }
1.783 albertel 596:
1.619 albertel 597: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 598: $env_loaded=1;
1.783 albertel 599: foreach my $expired_key (keys(%remove)) {
1.433 matthew 600: &delenv($expired_key);
1.374 www 601: }
1.1 albertel 602: }
603:
1.916 albertel 604: # ---------------------------------------------------- Check for valid session
605: sub check_for_valid_session {
1.1155 raeburn 606: my ($r,$name) = @_;
1.916 albertel 607: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 608: if ($name eq '') {
609: $name = 'lonID';
610: }
611: my $lonid=$cookies{$name};
1.916 albertel 612: return undef if (!$lonid);
613:
614: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 615: my $lonidsdir;
616: if ($name eq 'lonDAV') {
617: $lonidsdir=$r->dir_config('lonDAVsessDir');
618: } else {
619: $lonidsdir=$r->dir_config('lonIDsDir');
620: }
1.916 albertel 621: return undef if (!-e "$lonidsdir/$handle.id");
622:
1.917 albertel 623: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
624: return undef if (!$opened);
1.916 albertel 625:
626: flock($idf,LOCK_SH);
627: my %disk_env;
628: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
629: &GDBM_READER(),0640)) {
630: return undef;
631: }
632:
633: if (!defined($disk_env{'user.name'})
634: || !defined($disk_env{'user.domain'})) {
635: return undef;
636: }
637: return $handle;
638: }
639:
1.830 albertel 640: sub timed_flock {
641: my ($file,$lock_type) = @_;
642: my $failed=0;
643: eval {
644: local $SIG{__DIE__}='DEFAULT';
645: local $SIG{ALRM}=sub {
646: $failed=1;
647: die("failed lock");
648: };
649: alarm(13);
650: flock($file,$lock_type);
651: alarm(0);
652: };
653: if ($failed) {
654: return undef;
655: } else {
656: return 1;
657: }
658: }
659:
1.5 www 660: # ---------------------------------------------------------- Append Environment
661:
662: sub appenv {
1.949 raeburn 663: my ($newenv,$roles) = @_;
664: if (ref($newenv) eq 'HASH') {
665: foreach my $key (keys(%{$newenv})) {
666: my $refused = 0;
667: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
668: $refused = 1;
669: if (ref($roles) eq 'ARRAY') {
670: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
671: if (grep(/^\Q$role\E$/,@{$roles})) {
672: $refused = 0;
673: }
674: }
675: }
676: if ($refused) {
677: &logthis("<font color=\"blue\">WARNING: ".
678: "Attempt to modify environment ".$key." to ".$newenv->{$key}
679: .'</font>');
680: delete($newenv->{$key});
681: } else {
682: $env{$key}=$newenv->{$key};
683: }
684: }
685: my $opened = open(my $env_file,'+<',$env{'user.environment'});
686: if ($opened
687: && &timed_flock($env_file,LOCK_EX)
688: &&
689: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
690: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
691: while (my ($key,$value) = each(%{$newenv})) {
692: $disk_env{$key} = $value;
693: }
694: untie(%disk_env);
1.35 www 695: }
1.191 harris41 696: }
1.56 www 697: return 'ok';
698: }
699: # ----------------------------------------------------- Delete from Environment
700:
701: sub delenv {
1.1104 raeburn 702: my ($delthis,$regexp,$roles) = @_;
703: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
704: my $refused = 1;
705: if (ref($roles) eq 'ARRAY') {
706: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
707: if (grep(/^\Q$role\E$/,@{$roles})) {
708: $refused = 0;
709: }
710: }
711: if ($refused) {
712: &logthis("<font color=\"blue\">WARNING: ".
713: "Attempt to delete from environment ".$delthis);
714: return 'error';
715: }
1.56 www 716: }
1.917 albertel 717: my $opened = open(my $env_file,'+<',$env{'user.environment'});
718: if ($opened
1.915 albertel 719: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 720: &&
721: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
722: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 723: foreach my $key (keys(%disk_env)) {
1.987 raeburn 724: if ($regexp) {
725: if ($key=~/^$delthis/) {
726: delete($env{$key});
727: delete($disk_env{$key});
728: }
729: } else {
730: if ($key=~/^\Q$delthis\E/) {
731: delete($env{$key});
732: delete($disk_env{$key});
733: }
734: }
1.448 albertel 735: }
1.783 albertel 736: untie(%disk_env);
1.5 www 737: }
738: return 'ok';
1.369 albertel 739: }
740:
1.790 albertel 741: sub get_env_multiple {
742: my ($name) = @_;
743: my @values;
744: if (defined($env{$name})) {
745: # exists is it an array
746: if (ref($env{$name})) {
747: @values=@{ $env{$name} };
748: } else {
749: $values[0]=$env{$name};
750: }
751: }
752: return(@values);
753: }
754:
1.958 www 755: # ------------------------------------------------------------------- Locking
756:
757: sub set_lock {
758: my ($text)=@_;
759: $locknum++;
760: my $id=$$.'-'.$locknum;
761: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
762: 'session.lock.'.$id => $text});
763: return $id;
764: }
765:
766: sub get_locks {
767: my $num=0;
768: my %texts=();
769: foreach my $lock (split(/\,/,$env{'session.locks'})) {
770: if ($lock=~/\w/) {
771: $num++;
772: $texts{$lock}=$env{'session.lock.'.$lock};
773: }
774: }
775: return ($num,%texts);
776: }
777:
778: sub remove_lock {
779: my ($id)=@_;
780: my $newlocks='';
781: foreach my $lock (split(/\,/,$env{'session.locks'})) {
782: if (($lock=~/\w/) && ($lock ne $id)) {
783: $newlocks.=','.$lock;
784: }
785: }
786: &appenv({'session.locks' => $newlocks});
787: &delenv('session.lock.'.$id);
788: }
789:
790: sub remove_all_locks {
791: my $activelocks=$env{'session.locks'};
792: foreach my $lock (split(/\,/,$env{'session.locks'})) {
793: if ($lock=~/\w/) {
794: &remove_lock($lock);
795: }
796: }
797: }
798:
799:
1.369 albertel 800: # ------------------------------------------ Find out current server userload
801: sub userload {
802: my $numusers=0;
803: {
804: opendir(LONIDS,$perlvar{'lonIDsDir'});
805: my $filename;
806: my $curtime=time;
807: while ($filename=readdir(LONIDS)) {
1.925 albertel 808: next if ($filename eq '.' || $filename eq '..');
809: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 810: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 811: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 812: }
813: closedir(LONIDS);
814: }
815: my $userloadpercent=0;
816: my $maxuserload=$perlvar{'lonUserLoadLim'};
817: if ($maxuserload) {
1.371 albertel 818: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 819: }
1.372 albertel 820: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 821: return $userloadpercent;
1.283 www 822: }
823:
1.1 albertel 824: # ------------------------------ Find server with least workload from spare.tab
1.11 www 825:
1.1 albertel 826: sub spareserver {
1.1083 raeburn 827: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 828: my $spare_server;
1.370 albertel 829: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 830: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
831: : $userloadpercent;
1.1083 raeburn 832: my ($uint_dom,$remotesessions);
833: if (($udom ne '') && (&domain($udom) ne '')) {
834: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
835: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
836: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
837: $remotesessions = $udomdefaults{'remotesessions'};
838: }
1.1123 raeburn 839: my $spareshash = &this_host_spares($udom);
840: if (ref($spareshash) eq 'HASH') {
841: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
842: foreach my $try_server (@{ $spareshash->{'primary'} }) {
843: if ($uint_dom) {
844: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
845: $try_server));
846: }
847: ($spare_server, $lowest_load) =
848: &compare_server_load($try_server, $spare_server, $lowest_load);
849: }
1.1083 raeburn 850: }
1.784 albertel 851:
1.1123 raeburn 852: my $found_server = ($spare_server ne '' && $lowest_load < 100);
853:
854: if (!$found_server) {
855: if (ref($spareshash->{'default'}) eq 'ARRAY') {
856: foreach my $try_server (@{ $spareshash->{'default'} }) {
857: if ($uint_dom) {
858: next unless (&spare_can_host($udom,$uint_dom,
859: $remotesessions,$try_server));
860: }
861: ($spare_server, $lowest_load) =
862: &compare_server_load($try_server, $spare_server, $lowest_load);
863: }
864: }
865: }
1.784 albertel 866: }
867:
868: if (!$want_server_name) {
1.968 raeburn 869: my $protocol = 'http';
870: if ($protocol{$spare_server} eq 'https') {
871: $protocol = $protocol{$spare_server};
872: }
1.1001 raeburn 873: if (defined($spare_server)) {
874: my $hostname = &hostname($spare_server);
1.1083 raeburn 875: if (defined($hostname)) {
1.1001 raeburn 876: $spare_server = $protocol.'://'.$hostname;
877: }
878: }
1.784 albertel 879: }
880: return $spare_server;
881: }
882:
883: sub compare_server_load {
884: my ($try_server, $spare_server, $lowest_load) = @_;
885:
886: my $loadans = &reply('load', $try_server);
887: my $userloadans = &reply('userload',$try_server);
888:
889: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 890: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 891: }
892:
893: my $load;
894: if ($loadans =~ /\d/) {
895: if ($userloadans =~ /\d/) {
896: #both are numbers, pick the bigger one
897: $load = ($loadans > $userloadans) ? $loadans
898: : $userloadans;
1.411 albertel 899: } else {
1.784 albertel 900: $load = $loadans;
1.411 albertel 901: }
1.784 albertel 902: } else {
903: $load = $userloadans;
904: }
905:
906: if (($load =~ /\d/) && ($load < $lowest_load)) {
907: $spare_server = $try_server;
908: $lowest_load = $load;
1.370 albertel 909: }
1.784 albertel 910: return ($spare_server,$lowest_load);
1.202 matthew 911: }
1.914 albertel 912:
913: # --------------------------- ask offload servers if user already has a session
914: sub find_existing_session {
915: my ($udom,$uname) = @_;
1.1123 raeburn 916: my $spareshash = &this_host_spares($udom);
917: if (ref($spareshash) eq 'HASH') {
918: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
919: foreach my $try_server (@{ $spareshash->{'primary'} }) {
920: return $try_server if (&has_user_session($try_server, $udom, $uname));
921: }
922: }
923: if (ref($spareshash->{'default'}) eq 'ARRAY') {
924: foreach my $try_server (@{ $spareshash->{'default'} }) {
925: return $try_server if (&has_user_session($try_server, $udom, $uname));
926: }
927: }
1.914 albertel 928: }
929: return;
930: }
931:
932: # -------------------------------- ask if server already has a session for user
933: sub has_user_session {
934: my ($lonid,$udom,$uname) = @_;
935: my $result = &reply(join(':','userhassession',
936: map {&escape($_)} ($udom,$uname)),$lonid);
937: return 1 if ($result eq 'ok');
938:
939: return 0;
940: }
941:
1.1076 raeburn 942: # --------- determine least loaded server in a user's domain which allows login
943:
944: sub choose_server {
1.1115 raeburn 945: my ($udom,$checkloginvia) = @_;
1.1076 raeburn 946: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 947: my %servers = &get_servers($udom);
1.1076 raeburn 948: my $lowest_load = 30000;
1.1151 raeburn 949: my ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 950: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 951: my $loginvia;
952: if ($checkloginvia) {
953: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 954: if ($loginvia) {
955: my ($server,$path) = split(/:/,$loginvia);
956: ($login_host, $lowest_load) =
957: &compare_server_load($server, $login_host, $lowest_load);
958: if ($login_host eq $server) {
959: $portal_path = $path;
1.1151 raeburn 960: $isredirect = 1;
1.1116 raeburn 961: }
962: } else {
963: ($login_host, $lowest_load) =
964: &compare_server_load($lonhost, $login_host, $lowest_load);
965: if ($login_host eq $lonhost) {
966: $portal_path = '';
1.1151 raeburn 967: $isredirect = '';
1.1116 raeburn 968: }
969: }
970: } else {
1.1076 raeburn 971: ($login_host, $lowest_load) =
1.1116 raeburn 972: &compare_server_load($lonhost, $login_host, $lowest_load);
1.1076 raeburn 973: }
974: }
975: if ($login_host ne '') {
1.1116 raeburn 976: $hostname = &hostname($login_host);
1.1076 raeburn 977: }
1.1151 raeburn 978: return ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 979: }
980:
1.202 matthew 981: # --------------------------------------------- Try to change a user's password
982:
983: sub changepass {
1.799 raeburn 984: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 985: $currentpass = &escape($currentpass);
986: $newpass = &escape($newpass);
1.1030 raeburn 987: my $lonhost = $perlvar{'lonHostID'};
988: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 989: $server);
990: if (! $answer) {
991: &logthis("No reply on password change request to $server ".
992: "by $uname in domain $udom.");
993: } elsif ($answer =~ "^ok") {
994: &logthis("$uname in $udom successfully changed their password ".
995: "on $server.");
996: } elsif ($answer =~ "^pwchange_failure") {
997: &logthis("$uname in $udom was unable to change their password ".
998: "on $server. The action was blocked by either lcpasswd ".
999: "or pwchange");
1000: } elsif ($answer =~ "^non_authorized") {
1001: &logthis("$uname in $udom did not get their password correct when ".
1002: "attempting to change it on $server.");
1003: } elsif ($answer =~ "^auth_mode_error") {
1004: &logthis("$uname in $udom attempted to change their password despite ".
1005: "not being locally or internally authenticated on $server.");
1006: } elsif ($answer =~ "^unknown_user") {
1007: &logthis("$uname in $udom attempted to change their password ".
1008: "on $server but were unable to because $server is not ".
1009: "their home server.");
1010: } elsif ($answer =~ "^refused") {
1011: &logthis("$server refused to change $uname in $udom password because ".
1012: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1013: } elsif ($answer =~ "invalid_client") {
1014: &logthis("$server refused to change $uname in $udom password because ".
1015: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1016: }
1017: return $answer;
1.1 albertel 1018: }
1019:
1.169 harris41 1020: # ----------------------- Try to determine user's current authentication scheme
1021:
1022: sub queryauthenticate {
1023: my ($uname,$udom)=@_;
1.456 albertel 1024: my $uhome=&homeserver($uname,$udom);
1025: if (!$uhome) {
1026: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1027: return 'no_host';
1028: }
1029: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1030: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1031: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1032: }
1.456 albertel 1033: return $answer;
1.169 harris41 1034: }
1035:
1.1 albertel 1036: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1037:
1.1 albertel 1038: sub authenticate {
1.1073 raeburn 1039: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1040: $upass=&escape($upass);
1041: $uname= &LONCAPA::clean_username($uname);
1.836 www 1042: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1043: my $newhome;
1.836 www 1044: if ((!$uhome) || ($uhome eq 'no_host')) {
1045: # Maybe the machine was offline and only re-appeared again recently?
1046: &reconlonc();
1047: # One more
1.952 raeburn 1048: $uhome=&homeserver($uname,$udom,1);
1049: if (($uhome eq 'no_host') && $checkdefauth) {
1050: if (defined(&domain($udom,'primary'))) {
1051: $newhome=&domain($udom,'primary');
1052: }
1053: if ($newhome ne '') {
1054: $uhome = $newhome;
1055: }
1056: }
1.836 www 1057: if ((!$uhome) || ($uhome eq 'no_host')) {
1058: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1059: return 'no_host';
1060: }
1.1 albertel 1061: }
1.1073 raeburn 1062: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1063: if ($answer eq 'authorized') {
1.952 raeburn 1064: if ($newhome) {
1065: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1066: return 'no_account_on_host';
1067: } else {
1068: &logthis("User $uname at $udom authorized by $uhome");
1069: return $uhome;
1070: }
1.471 albertel 1071: }
1072: if ($answer eq 'non_authorized') {
1073: &logthis("User $uname at $udom rejected by $uhome");
1074: return 'no_host';
1.9 www 1075: }
1.471 albertel 1076: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1077: return 'no_host';
1078: }
1079:
1.1073 raeburn 1080: sub can_host_session {
1.1074 raeburn 1081: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1082: my $canhost = 1;
1.1074 raeburn 1083: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1084: if (ref($remotesessions) eq 'HASH') {
1085: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1086: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1087: $canhost = 0;
1088: } else {
1089: $canhost = 1;
1090: }
1091: }
1092: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1093: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1094: $canhost = 1;
1095: } else {
1096: $canhost = 0;
1097: }
1098: }
1099: if ($canhost) {
1100: if ($remotesessions->{'version'} ne '') {
1101: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1102: if ($reqmajor ne '' && $reqminor ne '') {
1103: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1104: my $major = $1;
1105: my $minor = $2;
1106: if (($major < $reqmajor ) ||
1107: (($major == $reqmajor) && ($minor < $reqminor))) {
1108: $canhost = 0;
1109: }
1110: } else {
1111: $canhost = 0;
1112: }
1113: }
1114: }
1115: }
1116: }
1117: if ($canhost) {
1118: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1119: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1120: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1121: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1122: if (($uint_dom ne '') &&
1123: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1124: $canhost = 0;
1125: } else {
1126: $canhost = 1;
1127: }
1128: }
1129: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1130: if (($uint_dom ne '') &&
1131: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1132: $canhost = 1;
1133: } else {
1134: $canhost = 0;
1135: }
1136: }
1137: }
1138: }
1139: return $canhost;
1140: }
1141:
1.1083 raeburn 1142: sub spare_can_host {
1143: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1144: my $canhost=1;
1145: my @intdoms;
1146: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1147: if (ref($internet_names) eq 'ARRAY') {
1148: @intdoms = @{$internet_names};
1149: }
1150: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1151: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1152: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1153: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1154: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1155: $canhost = &can_host_session($udom,$try_server,$remoterev,
1156: $remotesessions,
1157: $defdomdefaults{'hostedsessions'});
1158: }
1159: return $canhost;
1160: }
1161:
1.1123 raeburn 1162: sub this_host_spares {
1163: my ($dom) = @_;
1.1126 raeburn 1164: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1165: my @hosts = ¤t_machine_ids();
1166: foreach my $lonhost (@hosts) {
1167: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1168: $dom_in_use = $dom;
1169: $lonhost_in_use = $lonhost;
1.1123 raeburn 1170: last;
1171: }
1172: }
1.1126 raeburn 1173: if ($dom_in_use ne '') {
1174: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1175: }
1176: if (ref($result) ne 'HASH') {
1177: $lonhost_in_use = $perlvar{'lonHostID'};
1178: $dom_in_use = &host_domain($lonhost_in_use);
1179: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1180: if (ref($result) ne 'HASH') {
1181: $result = \%spareid;
1182: }
1183: }
1184: return $result;
1185: }
1186:
1187: sub spares_for_offload {
1188: my ($dom_in_use,$lonhost_in_use) = @_;
1189: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1190: if (defined($cached)) {
1191: return $result;
1192: } else {
1.1126 raeburn 1193: my $cachetime = 60*60*24;
1194: my %domconfig =
1195: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1196: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1197: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1198: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1199: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1200: }
1201: }
1202: }
1203: }
1.1126 raeburn 1204: return;
1.1123 raeburn 1205: }
1206:
1.1129 raeburn 1207: sub get_lonbalancer_config {
1208: my ($servers) = @_;
1209: my ($currbalancer,$currtargets);
1210: if (ref($servers) eq 'HASH') {
1211: foreach my $server (keys(%{$servers})) {
1212: my %what = (
1213: spareid => 1,
1214: perlvar => 1,
1215: );
1216: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1217: if ($result eq 'ok') {
1218: if (ref($returnhash) eq 'HASH') {
1219: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1220: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1221: $currbalancer = $server;
1222: $currtargets = {};
1223: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1224: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1225: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1226: }
1227: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1228: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1229: }
1230: }
1231: last;
1232: }
1233: }
1234: }
1235: }
1236: }
1237: }
1238: return ($currbalancer,$currtargets);
1239: }
1240:
1241: sub check_loadbalancing {
1242: my ($uname,$udom) = @_;
1.1191 raeburn 1243: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1244: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1245: my $lonhost = $perlvar{'lonHostID'};
1.1175 raeburn 1246: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1247: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1248: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1249: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1250: my $serverhomedom = &host_domain($lonhost);
1251:
1252: my $cachetime = 60*60*24;
1253:
1254: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1255: $dom_in_use = $udom;
1256: $homeintdom = 1;
1257: } else {
1258: $dom_in_use = $serverhomedom;
1259: }
1260: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1261: unless (defined($cached)) {
1262: my %domconfig =
1263: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1264: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1265: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1266: }
1267: }
1268: if (ref($result) eq 'HASH') {
1.1191 raeburn 1269: ($is_balancer,$currtargets,$currrules) =
1270: &check_balancer_result($result,@hosts);
1.1129 raeburn 1271: if ($is_balancer) {
1272: if (ref($currrules) eq 'HASH') {
1273: if ($homeintdom) {
1274: if ($uname ne '') {
1275: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1276: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1277: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1278: $rule_in_effect = $currrules->{'_LC_author'};
1279: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1280: $rule_in_effect = $currrules->{'_LC_adv'}
1281: }
1282: }
1283: if ($rule_in_effect eq '') {
1284: my %userenv = &userenvironment($udom,$uname,'inststatus');
1285: if ($userenv{'inststatus'} ne '') {
1286: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1287: my ($othertitle,$usertypes,$types) =
1288: &Apache::loncommon::sorted_inst_types($udom);
1289: if (ref($types) eq 'ARRAY') {
1290: foreach my $type (@{$types}) {
1291: if (grep(/^\Q$type\E$/,@statuses)) {
1292: if (exists($currrules->{$type})) {
1293: $rule_in_effect = $currrules->{$type};
1294: }
1295: }
1296: }
1297: }
1298: } else {
1299: if (exists($currrules->{'default'})) {
1300: $rule_in_effect = $currrules->{'default'};
1301: }
1302: }
1303: }
1304: } else {
1305: if (exists($currrules->{'default'})) {
1306: $rule_in_effect = $currrules->{'default'};
1307: }
1308: }
1309: } else {
1310: if ($currrules->{'_LC_external'} ne '') {
1311: $rule_in_effect = $currrules->{'_LC_external'};
1312: }
1313: }
1314: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1315: $uname,$udom);
1316: }
1317: }
1318: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1319: my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1320: unless (defined($cached)) {
1321: my %domconfig =
1322: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1323: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1324: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1325: }
1326: }
1327: if (ref($result) eq 'HASH') {
1.1191 raeburn 1328: ($is_balancer,$currtargets,$currrules) =
1329: &check_balancer_result($result,@hosts);
1330: if ($is_balancer) {
1.1129 raeburn 1331: if (ref($currrules) eq 'HASH') {
1332: if ($currrules->{'_LC_internetdom'} ne '') {
1333: $rule_in_effect = $currrules->{'_LC_internetdom'};
1334: }
1335: }
1336: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1337: $uname,$udom);
1338: }
1339: } else {
1340: if ($perlvar{'lonBalancer'} eq 'yes') {
1341: $is_balancer = 1;
1342: $offloadto = &this_host_spares($dom_in_use);
1343: }
1344: }
1345: } else {
1346: if ($perlvar{'lonBalancer'} eq 'yes') {
1347: $is_balancer = 1;
1348: $offloadto = &this_host_spares($dom_in_use);
1349: }
1350: }
1.1176 raeburn 1351: if ($is_balancer) {
1352: my $lowest_load = 30000;
1353: if (ref($offloadto) eq 'HASH') {
1354: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1355: foreach my $try_server (@{$offloadto->{'primary'}}) {
1356: ($otherserver,$lowest_load) =
1357: &compare_server_load($try_server,$otherserver,$lowest_load);
1358: }
1.1129 raeburn 1359: }
1.1176 raeburn 1360: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1361:
1.1176 raeburn 1362: if (!$found_server) {
1363: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1364: foreach my $try_server (@{$offloadto->{'default'}}) {
1365: ($otherserver,$lowest_load) =
1366: &compare_server_load($try_server,$otherserver,$lowest_load);
1367: }
1368: }
1369: }
1370: } elsif (ref($offloadto) eq 'ARRAY') {
1371: if (@{$offloadto} == 1) {
1372: $otherserver = $offloadto->[0];
1373: } elsif (@{$offloadto} > 1) {
1374: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1375: ($otherserver,$lowest_load) =
1376: &compare_server_load($try_server,$otherserver,$lowest_load);
1377: }
1378: }
1379: }
1.1176 raeburn 1380: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1381: $is_balancer = 0;
1382: if ($uname ne '' && $udom ne '') {
1383: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1384:
1385: &appenv({'user.loadbalexempt' => $lonhost,
1386: 'user.loadbalcheck.time' => time});
1387: }
1.1129 raeburn 1388: }
1389: }
1390: }
1391: return ($is_balancer,$otherserver);
1392: }
1393:
1.1191 raeburn 1394: sub check_balancer_result {
1395: my ($result,@hosts) = @_;
1396: my ($is_balancer,$currtargets,$currrules);
1397: if (ref($result) eq 'HASH') {
1398: if ($result->{'lonhost'} ne '') {
1399: my $currbalancer = $result->{'lonhost'};
1400: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1401: $is_balancer = 1;
1402: $currtargets = $result->{'targets'};
1403: $currrules = $result->{'rules'};
1404: }
1405: } else {
1406: foreach my $key (keys(%{$result})) {
1407: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1408: (ref($result->{$key}) eq 'HASH')) {
1409: $is_balancer = 1;
1410: $currrules = $result->{$key}{'rules'};
1411: $currtargets = $result->{$key}{'targets'};
1412: last;
1413: }
1414: }
1415: }
1416: }
1417: return ($is_balancer,$currtargets,$currrules);
1418: }
1419:
1.1129 raeburn 1420: sub get_loadbalancer_targets {
1421: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1422: my $offloadto;
1.1175 raeburn 1423: if ($rule_in_effect eq 'none') {
1424: return [$perlvar{'lonHostID'}];
1425: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1426: $offloadto = $currtargets;
1427: } else {
1428: if ($rule_in_effect eq 'homeserver') {
1429: my $homeserver = &homeserver($uname,$udom);
1430: if ($homeserver ne 'no_host') {
1431: $offloadto = [$homeserver];
1432: }
1433: } elsif ($rule_in_effect eq 'externalbalancer') {
1434: my %domconfig =
1435: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1436: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1437: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1438: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1439: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1440: }
1441: }
1442: } else {
1.1178 raeburn 1443: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1444: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1445: if (&hostname($remotebalancer) ne '') {
1446: $offloadto = [$remotebalancer];
1447: }
1448: }
1449: } elsif (&hostname($rule_in_effect) ne '') {
1450: $offloadto = [$rule_in_effect];
1451: }
1452: }
1453: return $offloadto;
1454: }
1455:
1.1127 raeburn 1456: sub internet_dom_servers {
1457: my ($dom) = @_;
1458: my (%uniqservers,%servers);
1459: my $primaryserver = &hostname(&domain($dom,'primary'));
1460: my @machinedoms = &machine_domains($primaryserver);
1461: foreach my $mdom (@machinedoms) {
1462: my %currservers = %servers;
1463: my %server = &get_servers($mdom);
1464: %servers = (%currservers,%server);
1465: }
1466: my %by_hostname;
1467: foreach my $id (keys(%servers)) {
1468: push(@{$by_hostname{$servers{$id}}},$id);
1469: }
1470: foreach my $hostname (sort(keys(%by_hostname))) {
1471: if (@{$by_hostname{$hostname}} > 1) {
1472: my $match = 0;
1473: foreach my $id (@{$by_hostname{$hostname}}) {
1474: if (&host_domain($id) eq $dom) {
1475: $uniqservers{$id} = $hostname;
1476: $match = 1;
1477: }
1478: }
1479: unless ($match) {
1480: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1481: }
1482: } else {
1483: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1484: }
1485: }
1486: return %uniqservers;
1487: }
1488:
1.1 albertel 1489: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1490:
1.599 albertel 1491: my %homecache;
1.1 albertel 1492: sub homeserver {
1.230 stredwic 1493: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1494: my $index="$uname:$udom";
1.426 albertel 1495:
1.599 albertel 1496: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1497:
1498: my %servers = &get_servers($udom,'library');
1499: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1500: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1501: exists($badServerCache{$tryserver}));
1.841 albertel 1502:
1503: my $answer=reply("home:$udom:$uname",$tryserver);
1504: if ($answer eq 'found') {
1505: delete($badServerCache{$tryserver});
1506: return $homecache{$index}=$tryserver;
1507: } elsif ($answer eq 'no_host') {
1508: $badServerCache{$tryserver}=1;
1509: }
1.1 albertel 1510: }
1511: return 'no_host';
1.70 www 1512: }
1513:
1514: # ------------------------------------- Find the usernames behind a list of IDs
1515:
1516: sub idget {
1517: my ($udom,@ids)=@_;
1518: my %returnhash=();
1519:
1.841 albertel 1520: my %servers = &get_servers($udom,'library');
1521: foreach my $tryserver (keys(%servers)) {
1522: my $idlist=join('&',@ids);
1523: $idlist=~tr/A-Z/a-z/;
1524: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1525: my @answer=();
1526: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1527: @answer=split(/\&/,$reply);
1528: } ;
1529: my $i;
1530: for ($i=0;$i<=$#ids;$i++) {
1531: if ($answer[$i]) {
1532: $returnhash{$ids[$i]}=$answer[$i];
1533: }
1534: }
1535: }
1.70 www 1536: return %returnhash;
1537: }
1538:
1539: # ------------------------------------- Find the IDs behind a list of usernames
1540:
1541: sub idrget {
1542: my ($udom,@unames)=@_;
1543: my %returnhash=();
1.800 albertel 1544: foreach my $uname (@unames) {
1545: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1546: }
1.70 www 1547: return %returnhash;
1548: }
1549:
1550: # ------------------------------- Store away a list of names and associated IDs
1551:
1552: sub idput {
1553: my ($udom,%ids)=@_;
1554: my %servers=();
1.800 albertel 1555: foreach my $uname (keys(%ids)) {
1556: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1557: my $uhom=&homeserver($uname,$udom);
1.70 www 1558: if ($uhom ne 'no_host') {
1.800 albertel 1559: my $id=&escape($ids{$uname});
1.70 www 1560: $id=~tr/A-Z/a-z/;
1.800 albertel 1561: my $esc_unam=&escape($uname);
1.70 www 1562: if ($servers{$uhom}) {
1.800 albertel 1563: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1564: } else {
1.800 albertel 1565: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1566: }
1567: }
1.191 harris41 1568: }
1.800 albertel 1569: foreach my $server (keys(%servers)) {
1570: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1571: }
1.344 www 1572: }
1573:
1.1023 raeburn 1574: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1575: sub dump_dom {
1.1165 droeschl 1576: my ($namespace, $udom, $regexp) = @_;
1577:
1578: $udom ||= $env{'user.domain'};
1579:
1580: return () unless $udom;
1581:
1582: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1583: }
1584:
1.1023 raeburn 1585: # ------------------------------------------ get items from domain db files
1.806 raeburn 1586:
1587: sub get_dom {
1.860 raeburn 1588: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1589: my $items='';
1590: foreach my $item (@$storearr) {
1591: $items.=&escape($item).'&';
1592: }
1593: $items=~s/\&$//;
1.860 raeburn 1594: if (!$udom) {
1595: $udom=$env{'user.domain'};
1596: if (defined(&domain($udom,'primary'))) {
1597: $uhome=&domain($udom,'primary');
1598: } else {
1.874 albertel 1599: undef($uhome);
1.860 raeburn 1600: }
1601: } else {
1602: if (!$uhome) {
1603: if (defined(&domain($udom,'primary'))) {
1604: $uhome=&domain($udom,'primary');
1605: }
1606: }
1607: }
1608: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1609: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1610: my %returnhash;
1.875 albertel 1611: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1612: return %returnhash;
1613: }
1.806 raeburn 1614: my @pairs=split(/\&/,$rep);
1615: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1616: return @pairs;
1617: }
1618: my $i=0;
1619: foreach my $item (@$storearr) {
1620: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1621: $i++;
1622: }
1623: return %returnhash;
1624: } else {
1.880 banghart 1625: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1626: }
1627: }
1628:
1629: # -------------------------------------------- put items in domain db files
1630:
1631: sub put_dom {
1.860 raeburn 1632: my ($namespace,$storehash,$udom,$uhome)=@_;
1633: if (!$udom) {
1634: $udom=$env{'user.domain'};
1635: if (defined(&domain($udom,'primary'))) {
1636: $uhome=&domain($udom,'primary');
1637: } else {
1.874 albertel 1638: undef($uhome);
1.860 raeburn 1639: }
1640: } else {
1641: if (!$uhome) {
1642: if (defined(&domain($udom,'primary'))) {
1643: $uhome=&domain($udom,'primary');
1644: }
1645: }
1646: }
1647: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1648: my $items='';
1649: foreach my $item (keys(%$storehash)) {
1650: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1651: }
1652: $items=~s/\&$//;
1653: return &reply("putdom:$udom:$namespace:$items",$uhome);
1654: } else {
1.860 raeburn 1655: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1656: }
1657: }
1658:
1.1023 raeburn 1659: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1660: sub newput_dom {
1.1023 raeburn 1661: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1662: my $result;
1663: if (!$udom) {
1664: $udom=$env{'user.domain'};
1665: }
1.1023 raeburn 1666: if ($udom) {
1667: my $uname = &get_domainconfiguser($udom);
1668: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1669: }
1670: return $result;
1671: }
1672:
1.1023 raeburn 1673: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1674: sub del_dom {
1.1023 raeburn 1675: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1676: if (ref($storearr) eq 'ARRAY') {
1677: if (!$udom) {
1678: $udom=$env{'user.domain'};
1679: }
1.1023 raeburn 1680: if ($udom) {
1681: my $uname = &get_domainconfiguser($udom);
1682: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1683: }
1684: }
1685: }
1686:
1.1023 raeburn 1687: # ----------------------------------construct domainconfig user for a domain
1688: sub get_domainconfiguser {
1689: my ($udom) = @_;
1690: return $udom.'-domainconfig';
1691: }
1692:
1.837 raeburn 1693: sub retrieve_inst_usertypes {
1694: my ($udom) = @_;
1695: my (%returnhash,@order);
1.989 raeburn 1696: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1697: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1698: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1699: %returnhash = %{$domdefs{'inststatustypes'}};
1700: @order = @{$domdefs{'inststatusorder'}};
1701: } else {
1702: if (defined(&domain($udom,'primary'))) {
1703: my $uhome=&domain($udom,'primary');
1704: my $rep=&reply("inst_usertypes:$udom",$uhome);
1705: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1706: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1707: return (\%returnhash,\@order);
1708: }
1709: my ($hashitems,$orderitems) = split(/:/,$rep);
1710: my @pairs=split(/\&/,$hashitems);
1711: foreach my $item (@pairs) {
1712: my ($key,$value)=split(/=/,$item,2);
1713: $key = &unescape($key);
1714: next if ($key =~ /^error: 2 /);
1715: $returnhash{$key}=&thaw_unescape($value);
1716: }
1717: my @esc_order = split(/\&/,$orderitems);
1718: foreach my $item (@esc_order) {
1719: push(@order,&unescape($item));
1720: }
1721: } else {
1722: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1723: }
1724: }
1725: return (\%returnhash,\@order);
1726: }
1727:
1.868 raeburn 1728: sub is_domainimage {
1729: my ($url) = @_;
1730: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1731: if (&domain($1) ne '') {
1732: return '1';
1733: }
1734: }
1735: return;
1736: }
1737:
1.899 raeburn 1738: sub inst_directory_query {
1739: my ($srch) = @_;
1740: my $udom = $srch->{'srchdomain'};
1741: my %results;
1742: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1743: my $outcome;
1.899 raeburn 1744: if ($homeserver ne '') {
1.904 albertel 1745: my $queryid=&reply("querysend:instdirsearch:".
1746: &escape($srch->{'srchby'}).':'.
1747: &escape($srch->{'srchterm'}).':'.
1748: &escape($srch->{'srchtype'}),$homeserver);
1749: my $host=&hostname($homeserver);
1750: if ($queryid !~/^\Q$host\E\_/) {
1751: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1752: return;
1753: }
1754: my $response = &get_query_reply($queryid);
1755: my $maxtries = 5;
1756: my $tries = 1;
1757: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1758: $response = &get_query_reply($queryid);
1759: $tries ++;
1760: }
1761:
1762: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1763: if ($response eq 'unavailable') {
1764: $outcome = $response;
1765: } else {
1766: $outcome = 'ok';
1767: my @matches = split(/\n/,$response);
1768: foreach my $match (@matches) {
1769: my ($key,$value) = split(/=/,$match);
1770: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1771: }
1.899 raeburn 1772: }
1773: }
1774: }
1.909 raeburn 1775: return ($outcome,%results);
1.899 raeburn 1776: }
1777:
1778: sub usersearch {
1779: my ($srch) = @_;
1780: my $dom = $srch->{'srchdomain'};
1781: my %results;
1782: my %libserv = &all_library();
1783: my $query = 'usersearch';
1784: foreach my $tryserver (keys(%libserv)) {
1785: if (&host_domain($tryserver) eq $dom) {
1786: my $host=&hostname($tryserver);
1787: my $queryid=
1.911 raeburn 1788: &reply("querysend:".&escape($query).':'.
1789: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1790: &escape($srch->{'srchtype'}).':'.
1791: &escape($srch->{'srchterm'}),$tryserver);
1792: if ($queryid !~/^\Q$host\E\_/) {
1793: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1794: next;
1.899 raeburn 1795: }
1796: my $reply = &get_query_reply($queryid);
1797: my $maxtries = 1;
1798: my $tries = 1;
1799: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1800: $reply = &get_query_reply($queryid);
1801: $tries ++;
1802: }
1803: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1804: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1805: } else {
1.911 raeburn 1806: my @matches;
1807: if ($reply =~ /\n/) {
1808: @matches = split(/\n/,$reply);
1809: } else {
1810: @matches = split(/\&/,$reply);
1811: }
1.899 raeburn 1812: foreach my $match (@matches) {
1813: my ($uname,$udom,%userhash);
1.911 raeburn 1814: foreach my $entry (split(/:/,$match)) {
1815: my ($key,$value) =
1816: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1817: $userhash{$key} = $value;
1818: if ($key eq 'username') {
1819: $uname = $value;
1820: } elsif ($key eq 'domain') {
1821: $udom = $value;
1.911 raeburn 1822: }
1.899 raeburn 1823: }
1824: $results{$uname.':'.$udom} = \%userhash;
1825: }
1826: }
1827: }
1828: }
1829: return %results;
1830: }
1831:
1.912 raeburn 1832: sub get_instuser {
1833: my ($udom,$uname,$id) = @_;
1834: my $homeserver = &domain($udom,'primary');
1835: my ($outcome,%results);
1836: if ($homeserver ne '') {
1837: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1838: &escape($id).':'.&escape($udom),$homeserver);
1839: my $host=&hostname($homeserver);
1840: if ($queryid !~/^\Q$host\E\_/) {
1841: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1842: return;
1843: }
1844: my $response = &get_query_reply($queryid);
1845: my $maxtries = 5;
1846: my $tries = 1;
1847: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1848: $response = &get_query_reply($queryid);
1849: $tries ++;
1850: }
1851: if (!&error($response) && $response ne 'refused') {
1852: if ($response eq 'unavailable') {
1853: $outcome = $response;
1854: } else {
1855: $outcome = 'ok';
1856: my @matches = split(/\n/,$response);
1857: foreach my $match (@matches) {
1858: my ($key,$value) = split(/=/,$match);
1859: $results{&unescape($key)} = &thaw_unescape($value);
1860: }
1861: }
1862: }
1863: }
1864: my %userinfo;
1865: if (ref($results{$uname}) eq 'HASH') {
1866: %userinfo = %{$results{$uname}};
1867: }
1868: return ($outcome,%userinfo);
1869: }
1870:
1871: sub inst_rulecheck {
1.923 raeburn 1872: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1873: my %returnhash;
1874: if ($udom ne '') {
1875: if (ref($rules) eq 'ARRAY') {
1876: @{$rules} = map {&escape($_);} (@{$rules});
1877: my $rulestr = join(':',@{$rules});
1878: my $homeserver=&domain($udom,'primary');
1879: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1880: my $response;
1881: if ($item eq 'username') {
1882: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1883: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1884: $homeserver));
1.923 raeburn 1885: } elsif ($item eq 'id') {
1886: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1887: ':'.&escape($id).':'.$rulestr,
1888: $homeserver));
1.945 raeburn 1889: } elsif ($item eq 'selfcreate') {
1890: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1891: &escape($udom).':'.&escape($uname).
1892: ':'.$rulestr,$homeserver));
1.923 raeburn 1893: }
1.912 raeburn 1894: if ($response ne 'refused') {
1895: my @pairs=split(/\&/,$response);
1896: foreach my $item (@pairs) {
1897: my ($key,$value)=split(/=/,$item,2);
1898: $key = &unescape($key);
1899: next if ($key =~ /^error: 2 /);
1900: $returnhash{$key}=&thaw_unescape($value);
1901: }
1902: }
1903: }
1904: }
1905: }
1906: return %returnhash;
1907: }
1908:
1909: sub inst_userrules {
1.923 raeburn 1910: my ($udom,$check) = @_;
1.912 raeburn 1911: my (%ruleshash,@ruleorder);
1912: if ($udom ne '') {
1913: my $homeserver=&domain($udom,'primary');
1914: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1915: my $response;
1916: if ($check eq 'id') {
1917: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1918: $homeserver);
1.943 raeburn 1919: } elsif ($check eq 'email') {
1920: $response=&reply('instemailrules:'.&escape($udom),
1921: $homeserver);
1.923 raeburn 1922: } else {
1923: $response=&reply('instuserrules:'.&escape($udom),
1924: $homeserver);
1925: }
1.912 raeburn 1926: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1927: ($response ne 'unknown_cmd') &&
1.912 raeburn 1928: ($response ne 'no_such_host')) {
1929: my ($hashitems,$orderitems) = split(/:/,$response);
1930: my @pairs=split(/\&/,$hashitems);
1931: foreach my $item (@pairs) {
1932: my ($key,$value)=split(/=/,$item,2);
1933: $key = &unescape($key);
1934: next if ($key =~ /^error: 2 /);
1935: $ruleshash{$key}=&thaw_unescape($value);
1936: }
1937: my @esc_order = split(/\&/,$orderitems);
1938: foreach my $item (@esc_order) {
1939: push(@ruleorder,&unescape($item));
1940: }
1941: }
1942: }
1943: }
1944: return (\%ruleshash,\@ruleorder);
1945: }
1946:
1.976 raeburn 1947: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1948:
1949: sub get_domain_defaults {
1950: my ($domain) = @_;
1951: my $cachetime = 60*60*24;
1952: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1953: if (defined($cached)) {
1954: if (ref($result) eq 'HASH') {
1955: return %{$result};
1956: }
1957: }
1958: my %domdefaults;
1959: my %domconfig =
1.989 raeburn 1960: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1961: 'requestcourses','inststatus',
1.1183 raeburn 1962: 'coursedefaults','usersessions',
1963: 'requestauthor'],$domain);
1.943 raeburn 1964: if (ref($domconfig{'defaults'}) eq 'HASH') {
1965: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1966: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1967: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1968: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1969: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 1970: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.943 raeburn 1971: } else {
1972: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1973: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1974: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1975: }
1.976 raeburn 1976: if (ref($domconfig{'quotas'}) eq 'HASH') {
1977: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1978: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1979: } else {
1980: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1981: }
1.1177 raeburn 1982: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 1983: foreach my $item (@usertools) {
1984: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1985: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1986: }
1987: }
1988: }
1.985 raeburn 1989: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1990: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1991: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1992: }
1993: }
1.1183 raeburn 1994: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
1995: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
1996: }
1.989 raeburn 1997: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1998: foreach my $item ('inststatustypes','inststatusorder') {
1999: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2000: }
2001: }
1.1047 raeburn 2002: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
2003: foreach my $item ('canuse_pdfforms') {
2004: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
2005: }
2006: }
1.1073 raeburn 2007: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2008: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2009: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2010: }
2011: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2012: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2013: }
2014: }
1.943 raeburn 2015: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
2016: $cachetime);
2017: return %domdefaults;
2018: }
2019:
1.344 www 2020: # --------------------------------------------------- Assign a key to a student
2021:
2022: sub assign_access_key {
1.364 www 2023: #
2024: # a valid key looks like uname:udom#comments
2025: # comments are being appended
2026: #
1.498 www 2027: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2028: $kdom=
1.620 albertel 2029: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2030: $knum=
1.620 albertel 2031: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2032: $cdom=
1.620 albertel 2033: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2034: $cnum=
1.620 albertel 2035: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2036: $udom=$env{'user.name'} unless (defined($udom));
2037: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2038: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2039: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2040: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2041: # assigned to this person
2042: # - this should not happen,
1.345 www 2043: # unless something went wrong
2044: # the first time around
2045: # ready to assign
1.364 www 2046: $logentry=$1.'; '.$logentry;
1.496 www 2047: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2048: $kdom,$knum) eq 'ok') {
1.345 www 2049: # key now belongs to user
1.346 www 2050: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2051: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2052: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2053: return 'ok';
2054: } else {
2055: return
2056: 'error: Count not permanently assign key, will need to be re-entered later.';
2057: }
2058: } else {
2059: return 'error: Could not assign key, try again later.';
2060: }
1.364 www 2061: } elsif (!$existing{$ckey}) {
1.345 www 2062: # the key does not exist
2063: return 'error: The key does not exist';
2064: } else {
2065: # the key is somebody else's
2066: return 'error: The key is already in use';
2067: }
1.344 www 2068: }
2069:
1.364 www 2070: # ------------------------------------------ put an additional comment on a key
2071:
2072: sub comment_access_key {
2073: #
2074: # a valid key looks like uname:udom#comments
2075: # comments are being appended
2076: #
2077: my ($ckey,$cdom,$cnum,$logentry)=@_;
2078: $cdom=
1.620 albertel 2079: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2080: $cnum=
1.620 albertel 2081: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2082: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2083: if ($existing{$ckey}) {
2084: $existing{$ckey}.='; '.$logentry;
2085: # ready to assign
1.367 www 2086: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2087: $cdom,$cnum) eq 'ok') {
2088: return 'ok';
2089: } else {
2090: return 'error: Count not store comment.';
2091: }
2092: } else {
2093: # the key does not exist
2094: return 'error: The key does not exist';
2095: }
2096: }
2097:
1.344 www 2098: # ------------------------------------------------------ Generate a set of keys
2099:
2100: sub generate_access_keys {
1.364 www 2101: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2102: $cdom=
1.620 albertel 2103: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2104: $cnum=
1.620 albertel 2105: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2106: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2107: unless (($cdom) && ($cnum)) { return 0; }
2108: if ($number>10000) { return 0; }
2109: sleep(2); # make sure don't get same seed twice
2110: srand(time()^($$+($$<<15))); # from "Programming Perl"
2111: my $total=0;
2112: for (my $i=1;$i<=$number;$i++) {
2113: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2114: sprintf("%lx",int(100000*rand)).'-'.
2115: sprintf("%lx",int(100000*rand));
2116: $newkey=~s/1/g/g; # folks mix up 1 and l
2117: $newkey=~s/0/h/g; # and also 0 and O
2118: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2119: if ($existing{$newkey}) {
2120: $i--;
2121: } else {
1.364 www 2122: if (&put('accesskeys',
2123: { $newkey => '# generated '.localtime().
1.620 albertel 2124: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2125: '; '.$logentry },
2126: $cdom,$cnum) eq 'ok') {
1.344 www 2127: $total++;
2128: }
2129: }
2130: }
1.620 albertel 2131: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2132: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2133: return $total;
2134: }
2135:
2136: # ------------------------------------------------------- Validate an accesskey
2137:
2138: sub validate_access_key {
2139: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2140: $cdom=
1.620 albertel 2141: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2142: $cnum=
1.620 albertel 2143: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2144: $udom=$env{'user.domain'} unless (defined($udom));
2145: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2146: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2147: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2148: }
2149:
2150: # ------------------------------------- Find the section of student in a course
1.652 albertel 2151: sub devalidate_getsection_cache {
2152: my ($udom,$unam,$courseid)=@_;
2153: my $hashid="$udom:$unam:$courseid";
2154: &devalidate_cache_new('getsection',$hashid);
2155: }
1.298 matthew 2156:
1.815 albertel 2157: sub courseid_to_courseurl {
2158: my ($courseid) = @_;
2159: #already url style courseid
2160: return $courseid if ($courseid =~ m{^/});
2161:
2162: if (exists($env{'course.'.$courseid.'.num'})) {
2163: my $cnum = $env{'course.'.$courseid.'.num'};
2164: my $cdom = $env{'course.'.$courseid.'.domain'};
2165: return "/$cdom/$cnum";
2166: }
2167:
2168: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2169: if (exists($courseinfo{'num'})) {
2170: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2171: }
2172:
2173: return undef;
2174: }
2175:
1.298 matthew 2176: sub getsection {
2177: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2178: my $cachetime=1800;
1.551 albertel 2179:
2180: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2181: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2182: if (defined($cached)) { return $result; }
2183:
1.298 matthew 2184: my %Pending;
2185: my %Expired;
2186: #
2187: # Each role can either have not started yet (pending), be active,
2188: # or have expired.
2189: #
2190: # If there is an active role, we are done.
2191: #
2192: # If there is more than one role which has not started yet,
2193: # choose the one which will start sooner
2194: # If there is one role which has not started yet, return it.
2195: #
2196: # If there is more than one expired role, choose the one which ended last.
2197: # If there is a role which has expired, return it.
2198: #
1.815 albertel 2199: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2200: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2201: foreach my $key (keys(%roleshash)) {
1.479 albertel 2202: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2203: my $section=$1;
2204: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2205: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2206: my $now=time;
1.548 albertel 2207: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2208: $Expired{$end}=$section;
2209: next;
2210: }
1.548 albertel 2211: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2212: $Pending{$start}=$section;
2213: next;
2214: }
1.599 albertel 2215: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2216: }
2217: #
2218: # Presumedly there will be few matching roles from the above
2219: # loop and the sorting time will be negligible.
2220: if (scalar(keys(%Pending))) {
2221: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2222: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2223: }
2224: if (scalar(keys(%Expired))) {
2225: my @sorted = sort {$a <=> $b} keys(%Expired);
2226: my $time = pop(@sorted);
1.599 albertel 2227: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2228: }
1.599 albertel 2229: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2230: }
1.70 www 2231:
1.599 albertel 2232: sub save_cache {
2233: &purge_remembered();
1.722 albertel 2234: #&Apache::loncommon::validate_page();
1.620 albertel 2235: undef(%env);
1.780 albertel 2236: undef($env_loaded);
1.599 albertel 2237: }
1.452 albertel 2238:
1.599 albertel 2239: my $to_remember=-1;
2240: my %remembered;
2241: my %accessed;
2242: my $kicks=0;
2243: my $hits=0;
1.849 albertel 2244: sub make_key {
2245: my ($name,$id) = @_;
1.872 albertel 2246: if (length($id) > 65
2247: && length(&escape($id)) > 200) {
2248: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2249: }
1.849 albertel 2250: return &escape($name.':'.$id);
2251: }
2252:
1.599 albertel 2253: sub devalidate_cache_new {
2254: my ($name,$id,$debug) = @_;
2255: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 2256: $id=&make_key($name,$id);
1.599 albertel 2257: $memcache->delete($id);
2258: delete($remembered{$id});
2259: delete($accessed{$id});
2260: }
2261:
2262: sub is_cached_new {
2263: my ($name,$id,$debug) = @_;
1.849 albertel 2264: $id=&make_key($name,$id);
1.599 albertel 2265: if (exists($remembered{$id})) {
1.1133 foxr 2266: if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
1.599 albertel 2267: $accessed{$id}=[&gettimeofday()];
2268: $hits++;
2269: return ($remembered{$id},1);
2270: }
2271: my $value = $memcache->get($id);
2272: if (!(defined($value))) {
2273: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2274: return (undef,undef);
1.416 albertel 2275: }
1.599 albertel 2276: if ($value eq '__undef__') {
2277: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2278: $value=undef;
2279: }
2280: &make_room($id,$value,$debug);
2281: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2282: return ($value,1);
2283: }
2284:
2285: sub do_cache_new {
2286: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 2287: $id=&make_key($name,$id);
1.599 albertel 2288: my $setvalue=$value;
2289: if (!defined($setvalue)) {
2290: $setvalue='__undef__';
2291: }
1.623 albertel 2292: if (!defined($time) ) {
2293: $time=600;
2294: }
1.599 albertel 2295: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2296: my $result = $memcache->set($id,$setvalue,$time);
2297: if (! $result) {
1.872 albertel 2298: &logthis("caching of id -> $id failed");
1.910 albertel 2299: $memcache->disconnect_all();
1.872 albertel 2300: }
1.600 albertel 2301: # need to make a copy of $value
1.919 albertel 2302: &make_room($id,$value,$debug);
1.599 albertel 2303: return $value;
2304: }
2305:
2306: sub make_room {
2307: my ($id,$value,$debug)=@_;
1.919 albertel 2308:
2309: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
2310: : $value;
1.599 albertel 2311: if ($to_remember<0) { return; }
2312: $accessed{$id}=[&gettimeofday()];
2313: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2314: my $to_kick;
2315: my $max_time=0;
2316: foreach my $other (keys(%accessed)) {
2317: if (&tv_interval($accessed{$other}) > $max_time) {
2318: $to_kick=$other;
2319: $max_time=&tv_interval($accessed{$other});
2320: }
2321: }
2322: delete($remembered{$to_kick});
2323: delete($accessed{$to_kick});
2324: $kicks++;
2325: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2326: return;
2327: }
2328:
1.599 albertel 2329: sub purge_remembered {
1.604 albertel 2330: #&logthis("Tossing ".scalar(keys(%remembered)));
2331: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2332: undef(%remembered);
2333: undef(%accessed);
1.428 albertel 2334: }
1.70 www 2335: # ------------------------------------- Read an entry from a user's environment
2336:
2337: sub userenvironment {
2338: my ($udom,$unam,@what)=@_;
1.976 raeburn 2339: my $items;
2340: foreach my $item (@what) {
2341: $items.=&escape($item).'&';
2342: }
2343: $items=~s/\&$//;
1.70 www 2344: my %returnhash=();
1.1009 raeburn 2345: my $uhome = &homeserver($unam,$udom);
2346: unless ($uhome eq 'no_host') {
2347: my @answer=split(/\&/,
2348: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2349: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2350: return %returnhash;
2351: }
1.1009 raeburn 2352: my $i;
2353: for ($i=0;$i<=$#what;$i++) {
2354: $returnhash{$what[$i]}=&unescape($answer[$i]);
2355: }
1.70 www 2356: }
2357: return %returnhash;
1.1 albertel 2358: }
2359:
1.617 albertel 2360: # ---------------------------------------------------------- Get a studentphoto
2361: sub studentphoto {
2362: my ($udom,$unam,$ext) = @_;
2363: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2364: if (defined($env{'request.course.id'})) {
1.708 raeburn 2365: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2366: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2367: return(&retrievestudentphoto($udom,$unam,$ext));
2368: } else {
2369: my ($result,$perm_reqd)=
1.707 albertel 2370: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2371: if ($result eq 'ok') {
2372: if (!($perm_reqd eq 'yes')) {
2373: return(&retrievestudentphoto($udom,$unam,$ext));
2374: }
2375: }
2376: }
2377: }
2378: } else {
2379: my ($result,$perm_reqd) =
1.707 albertel 2380: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2381: if ($result eq 'ok') {
2382: if (!($perm_reqd eq 'yes')) {
2383: return(&retrievestudentphoto($udom,$unam,$ext));
2384: }
2385: }
2386: }
2387: return '/adm/lonKaputt/lonlogo_broken.gif';
2388: }
2389:
2390: sub retrievestudentphoto {
2391: my ($udom,$unam,$ext,$type) = @_;
2392: my $home=&Apache::lonnet::homeserver($unam,$udom);
2393: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2394: if ($ret eq 'ok') {
2395: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2396: if ($type eq 'thumbnail') {
2397: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2398: }
2399: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2400: return $tokenurl;
2401: } else {
2402: if ($type eq 'thumbnail') {
2403: return '/adm/lonKaputt/genericstudent_tn.gif';
2404: } else {
2405: return '/adm/lonKaputt/lonlogo_broken.gif';
2406: }
1.617 albertel 2407: }
2408: }
2409:
1.263 www 2410: # -------------------------------------------------------------------- New chat
2411:
2412: sub chatsend {
1.724 raeburn 2413: my ($newentry,$anon,$group)=@_;
1.620 albertel 2414: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2415: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2416: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2417: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2418: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2419: &escape($newentry)).':'.$group,$chome);
1.292 www 2420: }
2421:
2422: # ------------------------------------------ Find current version of a resource
2423:
2424: sub getversion {
2425: my $fname=&clutter(shift);
1.1189 raeburn 2426: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2427: return ¤tversion(&filelocation('',$fname));
2428: }
2429:
2430: sub currentversion {
2431: my $fname=shift;
2432: my $author=$fname;
2433: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2434: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2435: my $home=&homeserver($uname,$udom);
1.292 www 2436: if ($home eq 'no_host') {
2437: return -1;
2438: }
1.1112 www 2439: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2440: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2441: return -1;
2442: }
1.1112 www 2443: return $answer;
1.263 www 2444: }
2445:
1.1111 www 2446: #
2447: # Return special version number of resource if set by override, empty otherwise
2448: #
2449: sub usedversion {
2450: my $fname=shift;
2451: unless ($fname) { $fname=$env{'request.uri'}; }
2452: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2453: if ($urlversion) { return $urlversion; }
2454: return '';
2455: }
2456:
1.1 albertel 2457: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2458:
1.1 albertel 2459: sub subscribe {
2460: my $fname=shift;
1.761 raeburn 2461: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2462: $fname=~s/[\n\r]//g;
1.1 albertel 2463: my $author=$fname;
2464: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2465: my ($udom,$uname)=split(/\//,$author);
2466: my $home=homeserver($uname,$udom);
1.335 albertel 2467: if ($home eq 'no_host') {
2468: return 'not_found';
1.1 albertel 2469: }
2470: my $answer=reply("sub:$fname",$home);
1.64 www 2471: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2472: $answer.=' by '.$home;
2473: }
1.1 albertel 2474: return $answer;
2475: }
2476:
1.8 www 2477: # -------------------------------------------------------------- Replicate file
2478:
2479: sub repcopy {
2480: my $filename=shift;
1.23 www 2481: $filename=~s/\/+/\//g;
1.1142 raeburn 2482: my $londocroot = $perlvar{'lonDocRoot'};
2483: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2484: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2485: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2486: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2487: return &repcopy_userfile($filename);
2488: }
1.532 albertel 2489: $filename=~s/[\n\r]//g;
1.8 www 2490: my $transname="$filename.in.transfer";
1.828 www 2491: # FIXME: this should flock
1.607 raeburn 2492: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2493: my $remoteurl=subscribe($filename);
1.64 www 2494: if ($remoteurl =~ /^con_lost by/) {
2495: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2496: return 'unavailable';
1.8 www 2497: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2498: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2499: return 'not_found';
1.64 www 2500: } elsif ($remoteurl =~ /^rejected by/) {
2501: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2502: return 'forbidden';
1.20 www 2503: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2504: return 'ok';
1.8 www 2505: } else {
1.290 www 2506: my $author=$filename;
2507: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2508: my ($udom,$uname)=split(/\//,$author);
2509: my $home=homeserver($uname,$udom);
2510: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2511: my @parts=split(/\//,$filename);
2512: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2513: if ($path ne "$londocroot/res") {
1.8 www 2514: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2515: return 'bad_request';
1.8 www 2516: }
2517: my $count;
2518: for ($count=5;$count<$#parts;$count++) {
2519: $path.="/$parts[$count]";
2520: if ((-e $path)!=1) {
2521: mkdir($path,0777);
2522: }
2523: }
2524: my $ua=new LWP::UserAgent;
2525: my $request=new HTTP::Request('GET',"$remoteurl");
2526: my $response=$ua->request($request,$transname);
2527: if ($response->is_error()) {
2528: unlink($transname);
2529: my $message=$response->status_line;
1.672 albertel 2530: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2531: ." LWP get: $message: $filename</font>");
1.607 raeburn 2532: return 'unavailable';
1.8 www 2533: } else {
1.16 www 2534: if ($remoteurl!~/\.meta$/) {
2535: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2536: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2537: if ($mresponse->is_error()) {
2538: unlink($filename.'.meta');
2539: &logthis(
1.672 albertel 2540: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2541: }
2542: }
1.8 www 2543: rename($transname,$filename);
1.607 raeburn 2544: return 'ok';
1.8 www 2545: }
1.290 www 2546: }
1.8 www 2547: }
1.330 www 2548: }
2549:
2550: # ------------------------------------------------ Get server side include body
2551: sub ssi_body {
1.381 albertel 2552: my ($filelink,%form)=@_;
1.606 matthew 2553: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2554: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2555: }
1.953 www 2556: my $output='';
2557: my $response;
1.980 raeburn 2558: if ($filelink=~/^https?\:/) {
1.954 raeburn 2559: ($output,$response)=&externalssi($filelink);
1.953 www 2560: } else {
1.1004 droeschl 2561: $filelink .= $filelink=~/\?/ ? '&' : '?';
2562: $filelink .= 'inhibitmenu=yes';
1.953 www 2563: ($output,$response)=&ssi($filelink,%form);
2564: }
1.778 albertel 2565: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2566: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2567: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2568: if (wantarray) {
2569: return ($output, $response);
2570: } else {
2571: return $output;
2572: }
1.8 www 2573: }
2574:
1.15 www 2575: # --------------------------------------------------------- Server Side Include
2576:
1.782 albertel 2577: sub absolute_url {
2578: my ($host_name) = @_;
2579: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2580: if ($host_name eq '') {
2581: $host_name = $ENV{'SERVER_NAME'};
2582: }
2583: return $protocol.$host_name;
2584: }
2585:
1.942 foxr 2586: #
2587: # Server side include.
2588: # Parameters:
2589: # fn Possibly encrypted resource name/id.
2590: # form Hash that describes how the rendering should be done
2591: # and other things.
1.944 foxr 2592: # Returns:
1.950 raeburn 2593: # Scalar context: The content of the response.
2594: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2595: #
1.15 www 2596: sub ssi {
2597:
1.944 foxr 2598: my ($fn,%form)=@_;
1.15 www 2599: my $ua=new LWP::UserAgent;
1.23 www 2600: my $request;
1.711 albertel 2601:
2602: $form{'no_update_last_known'}=1;
1.895 albertel 2603: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2604: if (%form) {
1.782 albertel 2605: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2606: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2607: } else {
1.782 albertel 2608: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2609: }
2610:
1.15 www 2611: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1173 foxr 2612: my $response= $ua->request($request);
1.1182 foxr 2613: my $content = $response->content;
2614:
2615:
1.944 foxr 2616: if (wantarray) {
1.1173 foxr 2617: return ($content, $response);
1.944 foxr 2618: } else {
1.1173 foxr 2619: return $content;
1.942 foxr 2620: }
1.324 www 2621: }
2622:
2623: sub externalssi {
2624: my ($url)=@_;
2625: my $ua=new LWP::UserAgent;
2626: my $request=new HTTP::Request('GET',$url);
2627: my $response=$ua->request($request);
1.954 raeburn 2628: if (wantarray) {
2629: return ($response->content, $response);
2630: } else {
2631: return $response->content;
2632: }
1.15 www 2633: }
1.254 www 2634:
1.492 albertel 2635: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2636:
2637: sub allowuploaded {
2638: my ($srcurl,$url)=@_;
2639: $url=&clutter(&declutter($url));
2640: my $dir=$url;
2641: $dir=~s/\/[^\/]+$//;
2642: my %httpref=();
2643: my $httpurl=&hreflocation('',$url);
2644: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2645: &Apache::lonnet::appenv(\%httpref);
1.254 www 2646: }
1.477 raeburn 2647:
1.1193 raeburn 2648: #
2649: # Determine if the current user should be able to edit a particular resource,
2650: # when viewing in course context.
2651: # (a) When viewing resource used to determine if "Edit" item is included in
2652: # Functions.
2653: # (b) When displaying folder contents in course editor, used to determine if
2654: # "Edit" link will be displayed alongside resource.
2655: #
1.1196 raeburn 2656: # input: six args -- filename (decluttered), course number, course domain,
2657: # url, symb (if registered) and group (if this is a group
2658: # item -- e.g., bulletin board, group page etc.).
2659: # output: array of five scalars --
1.1193 raeburn 2660: # $cfile -- url for file editing if editable on current server
2661: # $home -- homeserver of resource (i.e., for author if published,
2662: # or course if uploaded.).
2663: # $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 2664: # $forceedit -- 1 if icon/link should be to go to edit mode
2665: # $forceview -- 1 if icon/link should be to go to view mode
1.1193 raeburn 2666: #
2667:
2668: sub can_edit_resource {
1.1194 raeburn 2669: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
2670: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
2671: #
2672: # For aboutme pages user can only edit his/her own.
2673: #
1.1199 raeburn 2674: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
1.1194 raeburn 2675: my ($sdom,$sname) = ($1,$2);
2676: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
2677: $home = $env{'user.home'};
2678: $cfile = $resurl;
2679: if ($env{'form.forceedit'}) {
2680: $forceview = 1;
2681: } else {
2682: $forceedit = 1;
2683: }
2684: return ($cfile,$home,$switchserver,$forceedit,$forceview);
2685: } else {
2686: return;
2687: }
2688: }
2689:
2690: if ($env{'request.course.id'}) {
2691: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
2692: if ($group ne '') {
2693: # if this is a group homepage or group bulletin board, check group privs
2694: my $allowed = 0;
1.1197 raeburn 2695: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
2696: if ((&allowed('mdg',$env{'request.course.id'}.
1.1198 raeburn 2697: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
1.1194 raeburn 2698: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
2699: $allowed = 1;
2700: }
1.1197 raeburn 2701: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
2702: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
2703: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
1.1194 raeburn 2704: $allowed = 1;
2705: }
2706: }
2707: if ($allowed) {
2708: $home=&homeserver($cnum,$cdom);
2709: if ($env{'form.forceedit'}) {
2710: $forceview = 1;
2711: } else {
2712: $forceedit = 1;
2713: }
2714: $cfile = $resurl;
2715: } else {
2716: return;
2717: }
2718: } else {
2719: #
2720: # No edit allowed where CC has switched to student role.
2721: #
2722: unless ($crsedit) {
2723: return;
2724: }
2725: }
2726: }
2727:
1.1193 raeburn 2728: if ($file ne '') {
2729: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
1.1194 raeburn 2730: if (&is_course_upload($file,$cnum,$cdom)) {
2731: $uploaded = 1;
2732: $incourse = 1;
1.1193 raeburn 2733: if ($file =~/\.(htm|html|css|js|txt)$/) {
2734: $cfile = &hreflocation('',$file);
1.1201 raeburn 2735: if ($env{'form.forceedit'}) {
2736: $forceview = 1;
2737: } else {
2738: $forceedit = 1;
2739: }
1.1194 raeburn 2740: }
2741: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
2742: $incourse = 1;
2743: if ($env{'form.forceedit'}) {
2744: $forceview = 1;
2745: } else {
2746: $forceedit = 1;
2747: }
2748: $cfile = $resurl;
2749: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
2750: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
2751: $incourse = 1;
2752: if ($env{'form.forceedit'}) {
2753: $forceview = 1;
2754: } else {
2755: $forceedit = 1;
2756: }
2757: $cfile = $resurl;
1.1199 raeburn 2758: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
1.1194 raeburn 2759: $incourse = 1;
2760: $cfile = $resurl.'/smpedit';
1.1199 raeburn 2761: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
1.1194 raeburn 2762: $incourse = 1;
1.1199 raeburn 2763: if ($env{'form.forceedit'}) {
2764: $forceview = 1;
2765: } else {
2766: $forceedit = 1;
2767: }
2768: $cfile = $resurl;
1.1194 raeburn 2769: }
2770: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
2771: my $template = '/res/lib/templates/simpleproblem.problem';
2772: if (&is_on_map($template)) {
2773: $incourse = 1;
2774: $forceview = 1;
2775: $cfile = $template;
1.1193 raeburn 2776: }
1.1199 raeburn 2777: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
2778: $incourse = 1;
2779: if ($env{'form.forceedit'}) {
2780: $forceview = 1;
2781: } else {
2782: $forceedit = 1;
2783: }
2784: $cfile = $resurl;
2785: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
2786: $incourse = 1;
2787: $forceview = 1;
2788: if ($symb) {
2789: my ($map,$id,$res)=&decode_symb($symb);
2790: $env{'request.symb'} = $symb;
2791: $cfile = &clutter($res);
2792: } else {
2793: $cfile = $env{'form.suppurl'};
2794: $cfile =~ s{^http://}{};
2795: $cfile = '/adm/wrapper/ext/'.$cfile;
2796: }
1.1193 raeburn 2797: }
2798: }
1.1194 raeburn 2799: if ($uploaded || $incourse) {
2800: $home=&homeserver($cnum,$cdom);
2801: } else {
1.1193 raeburn 2802: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
2803: $file=~s{^($match_domain/$match_username)}{/priv/$1};
2804: # Check that the user has permission to edit this resource
2805: my $setpriv = 1;
2806: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
2807: if (defined($cfudom)) {
2808: $home=&homeserver($cfuname,$cfudom);
2809: $cfile=$file;
2810: }
2811: }
1.1194 raeburn 2812: if (($cfile ne '') && (!$incourse || $uploaded) &&
2813: (($home ne '') && ($home ne 'no_host'))) {
1.1193 raeburn 2814: my @ids=¤t_machine_ids();
2815: unless (grep(/^\Q$home\E$/,@ids)) {
2816: $switchserver=1;
2817: }
2818: }
2819: }
1.1194 raeburn 2820: return ($cfile,$home,$switchserver,$forceedit,$forceview);
1.1193 raeburn 2821: }
2822:
2823: sub is_course_upload {
2824: my ($file,$cnum,$cdom) = @_;
2825: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
2826: $uploadpath =~ s{^\/}{};
1.1201 raeburn 2827: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
2828: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
1.1193 raeburn 2829: return 1;
2830: }
2831: return;
2832: }
2833:
1.1194 raeburn 2834: sub in_course {
1.1195 raeburn 2835: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
2836: if ($hideprivileged) {
2837: my $skipuser;
2838: if (&privileged($uname,$udom)) {
2839: $skipuser = 1;
2840: my %coursehash = &coursedescription($cdom.'_'.$cnum);
2841: if ($coursehash{'nothideprivileged'}) {
2842: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2843: my $user;
2844: if ($item =~ /:/) {
2845: $user = $item;
2846: } else {
2847: $user = join(':',split(/[\@]/,$item));
2848: }
2849: if ($user eq $uname.':'.$udom) {
2850: undef($skipuser);
2851: last;
2852: }
2853: }
2854: }
2855: if ($skipuser) {
2856: return 0;
2857: }
2858: }
2859: }
1.1194 raeburn 2860: $type ||= 'any';
2861: if (!defined($cdom) || !defined($cnum)) {
2862: my $cid = $env{'request.course.id'};
2863: $cdom = $env{'course.'.$cid.'.domain'};
2864: $cnum = $env{'course.'.$cid.'.num'};
2865: }
2866: my $typesref;
1.1195 raeburn 2867: if (($type eq 'any') || ($type eq 'all')) {
1.1194 raeburn 2868: $typesref = ['active','previous','future'];
2869: } elsif ($type eq 'previous' || $type eq 'future') {
2870: $typesref = [$type];
2871: }
2872: my %roles = &get_my_roles($uname,$udom,'userroles',
2873: $typesref,undef,[$cdom]);
2874: my ($tmp) = keys(%roles);
2875: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
2876: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
2877: if (@course_roles > 0) {
2878: return 1;
2879: }
2880: return 0;
2881: }
2882:
1.478 albertel 2883: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2884: # input: action, courseID, current domain, intended
1.637 raeburn 2885: # path to file, source of file, instruction to parse file for objects,
2886: # ref to hash for embedded objects,
2887: # ref to hash for codebase of java objects.
1.1095 raeburn 2888: # reference to scalar to accommodate mime type determined
2889: # from File::MMagic if $parser = parse.
1.637 raeburn 2890: #
1.485 raeburn 2891: # output: url to file (if action was uploaddoc),
2892: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2893: #
1.478 albertel 2894: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2895: # course.
1.477 raeburn 2896: #
1.478 albertel 2897: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2898: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2899: # course's home server.
1.477 raeburn 2900: #
1.478 albertel 2901: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2902: # be copied from $source (current location) to
2903: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2904: # and will then be copied to
2905: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2906: # course's home server.
1.485 raeburn 2907: #
1.481 raeburn 2908: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2909: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2910: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2911: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2912: # in course's home server.
1.637 raeburn 2913: #
1.477 raeburn 2914:
2915: sub process_coursefile {
1.1095 raeburn 2916: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
2917: $mimetype)=@_;
1.477 raeburn 2918: my $fetchresult;
1.638 albertel 2919: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2920: if ($action eq 'propagate') {
1.638 albertel 2921: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2922: $home);
1.481 raeburn 2923: } else {
1.477 raeburn 2924: my $fpath = '';
2925: my $fname = $file;
1.478 albertel 2926: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2927: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2928: my $filepath = &build_filepath($fpath);
1.481 raeburn 2929: if ($action eq 'copy') {
2930: if ($source eq '') {
2931: $fetchresult = 'no source file';
2932: return $fetchresult;
2933: } else {
2934: my $destination = $filepath.'/'.$fname;
2935: rename($source,$destination);
2936: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2937: $home);
1.481 raeburn 2938: }
2939: } elsif ($action eq 'uploaddoc') {
2940: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2941: print $fh $env{'form.'.$source};
1.481 raeburn 2942: close($fh);
1.637 raeburn 2943: if ($parser eq 'parse') {
1.1024 raeburn 2944: my $mm = new File::MMagic;
1.1095 raeburn 2945: my $type = $mm->checktype_filename($filepath.'/'.$fname);
2946: if ($type eq 'text/html') {
1.1024 raeburn 2947: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2948: unless ($parse_result eq 'ok') {
2949: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2950: }
1.637 raeburn 2951: }
1.1095 raeburn 2952: if (ref($mimetype)) {
2953: $$mimetype = $type;
2954: }
1.637 raeburn 2955: }
1.477 raeburn 2956: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2957: $home);
1.481 raeburn 2958: if ($fetchresult eq 'ok') {
2959: return '/uploaded/'.$fpath.'/'.$fname;
2960: } else {
2961: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2962: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2963: return '/adm/notfound.html';
2964: }
1.477 raeburn 2965: }
2966: }
1.485 raeburn 2967: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2968: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2969: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2970: }
2971: return $fetchresult;
2972: }
2973:
1.637 raeburn 2974: sub build_filepath {
2975: my ($fpath) = @_;
2976: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2977: unless ($fpath eq '') {
2978: my @parts=split('/',$fpath);
2979: foreach my $part (@parts) {
2980: $filepath.= '/'.$part;
2981: if ((-e $filepath)!=1) {
2982: mkdir($filepath,0777);
2983: }
2984: }
2985: }
2986: return $filepath;
2987: }
2988:
2989: sub store_edited_file {
1.638 albertel 2990: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2991: my $file = $primary_url;
2992: $file =~ s#^/uploaded/$docudom/$docuname/##;
2993: my $fpath = '';
2994: my $fname = $file;
2995: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2996: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2997: my $filepath = &build_filepath($fpath);
2998: open(my $fh,'>'.$filepath.'/'.$fname);
2999: print $fh $content;
3000: close($fh);
1.638 albertel 3001: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3002: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3003: $home);
1.637 raeburn 3004: if ($$fetchresult eq 'ok') {
3005: return '/uploaded/'.$fpath.'/'.$fname;
3006: } else {
1.638 albertel 3007: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3008: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3009: return '/adm/notfound.html';
3010: }
3011: }
3012:
1.531 albertel 3013: sub clean_filename {
1.831 albertel 3014: my ($fname,$args)=@_;
1.315 www 3015: # Replace Windows backslashes by forward slashes
1.257 www 3016: $fname=~s/\\/\//g;
1.831 albertel 3017: if (!$args->{'keep_path'}) {
3018: # Get rid of everything but the actual filename
3019: $fname=~s/^.*\/([^\/]+)$/$1/;
3020: }
1.315 www 3021: # Replace spaces by underscores
3022: $fname=~s/\s+/\_/g;
3023: # Replace all other weird characters by nothing
1.831 albertel 3024: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3025: # Replace all .\d. sequences with _\d. so they no longer look like version
3026: # numbers
3027: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3028: return $fname;
3029: }
1.1051 raeburn 3030: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3031: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3032: # image with the same aspect ratio as the original, but with dimensions which do
3033: # not exceed $resizewidth and $resizeheight.
3034:
1.984 neumanie 3035: sub resizeImage {
1.1051 raeburn 3036: my ($img_path,$resizewidth,$resizeheight) = @_;
3037: my $ima = Image::Magick->new;
3038: my $resized;
3039: if (-e $img_path) {
3040: $ima->Read($img_path);
3041: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3042: my $width = $ima->Get('width');
3043: my $height = $ima->Get('height');
3044: if ($width > $resizewidth) {
3045: my $factor = $width/$resizewidth;
3046: my $newheight = $height/$factor;
3047: $ima->Scale(width=>$resizewidth,height=>$newheight);
3048: $resized = 1;
3049: }
3050: }
3051: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3052: my $width = $ima->Get('width');
3053: my $height = $ima->Get('height');
3054: if ($height > $resizeheight) {
3055: my $factor = $height/$resizeheight;
3056: my $newwidth = $width/$factor;
3057: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3058: $resized = 1;
3059: }
3060: }
3061: if ($resized) {
3062: $ima->Write($img_path);
3063: }
3064: }
3065: return;
1.977 amueller 3066: }
3067:
1.608 albertel 3068: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3069: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3070: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3071: # $context - possible values: coursedoc, existingfile, overwrite,
3072: # canceloverwrite, or ''.
3073: # if 'coursedoc': upload to the current course
3074: # if 'existingfile': write file to tmp/overwrites directory
3075: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3076: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3077: # $subdir - directory in userfile to store the file into
1.858 raeburn 3078: # $parser - instruction to parse file for objects ($parser = parse)
3079: # $allfiles - reference to hash for embedded objects
3080: # $codebase - reference to hash for codebase of java objects
3081: # $desuname - username for permanent storage of uploaded file
3082: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3083: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3084: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3085: # $resizewidth - width (pixels) to which to resize uploaded image
3086: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3087: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3088: # from File::MMagic.
1.858 raeburn 3089: #
1.686 albertel 3090: # output: url of file in userspace, or error: <message>
3091: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3092:
1.531 albertel 3093: sub userfileupload {
1.1090 raeburn 3094: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3095: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3096: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3097: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3098: $fname=&clean_filename($fname);
1.1090 raeburn 3099: # See if there is anything left
1.257 www 3100: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3101: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3102: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3103: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3104: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3105: my $now = time;
1.1090 raeburn 3106: my $filepath;
1.1095 raeburn 3107: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3108: $filepath = 'tmp/helprequests/'.$now;
3109: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3110: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3111: '_'.$env{'user.domain'}.'/pending';
3112: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3113: my ($docuname,$docudom);
3114: if ($destudom) {
3115: $docudom = $destudom;
3116: } else {
3117: $docudom = $env{'user.domain'};
3118: }
3119: if ($destuname) {
3120: $docuname = $destuname;
3121: } else {
3122: $docuname = $env{'user.name'};
3123: }
3124: if (exists($env{'form.group'})) {
3125: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3126: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3127: }
3128: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3129: if ($context eq 'canceloverwrite') {
3130: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3131: if (-e $tempfile) {
3132: my @info = stat($tempfile);
3133: if ($info[9] eq $env{'form.timestamp'}) {
3134: unlink($tempfile);
3135: }
3136: }
3137: return;
1.523 raeburn 3138: }
3139: }
1.1090 raeburn 3140: # Create the directory if not present
1.741 raeburn 3141: my @parts=split(/\//,$filepath);
3142: my $fullpath = $perlvar{'lonDaemons'};
3143: for (my $i=0;$i<@parts;$i++) {
3144: $fullpath .= '/'.$parts[$i];
3145: if ((-e $fullpath)!=1) {
3146: mkdir($fullpath,0777);
3147: }
3148: }
3149: open(my $fh,'>'.$fullpath.'/'.$fname);
3150: print $fh $env{'form.'.$formname};
3151: close($fh);
1.1090 raeburn 3152: if ($context eq 'existingfile') {
3153: my @info = stat($fullpath.'/'.$fname);
3154: return ($fullpath.'/'.$fname,$info[9]);
3155: } else {
3156: return $fullpath.'/'.$fname;
3157: }
1.523 raeburn 3158: }
1.995 raeburn 3159: if ($subdir eq 'scantron') {
3160: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3161: } else {
1.995 raeburn 3162: $fname="$subdir/$fname";
3163: }
1.1090 raeburn 3164: if ($context eq 'coursedoc') {
1.638 albertel 3165: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3166: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3167: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3168: return &finishuserfileupload($docuname,$docudom,
3169: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3170: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3171: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3172: } else {
1.620 albertel 3173: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 3174: return &process_coursefile('uploaddoc',$docuname,$docudom,
3175: $fname,$formname,$parser,
1.1095 raeburn 3176: $allfiles,$codebase,$mimetype);
1.481 raeburn 3177: }
1.719 banghart 3178: } elsif (defined($destuname)) {
3179: my $docuname=$destuname;
3180: my $docudom=$destudom;
1.860 raeburn 3181: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3182: $parser,$allfiles,$codebase,
1.1051 raeburn 3183: $thumbwidth,$thumbheight,
1.1095 raeburn 3184: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3185: } else {
1.638 albertel 3186: my $docuname=$env{'user.name'};
3187: my $docudom=$env{'user.domain'};
1.714 raeburn 3188: if (exists($env{'form.group'})) {
3189: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3190: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3191: }
1.860 raeburn 3192: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3193: $parser,$allfiles,$codebase,
1.1051 raeburn 3194: $thumbwidth,$thumbheight,
1.1095 raeburn 3195: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3196: }
1.271 www 3197: }
3198:
3199: sub finishuserfileupload {
1.860 raeburn 3200: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3201: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3202: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3203: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3204:
1.860 raeburn 3205: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3206: $file=$fname;
3207: if ($fname=~m|/|) {
3208: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3209: $path.=$fnamepath.'/';
3210: }
1.259 www 3211: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3212: my $count;
3213: for ($count=4;$count<=$#parts;$count++) {
3214: $filepath.="/$parts[$count]";
3215: if ((-e $filepath)!=1) {
3216: mkdir($filepath,0777);
3217: }
3218: }
1.984 neumanie 3219:
1.258 www 3220: # Save the file
3221: {
1.701 albertel 3222: if (!open(FH,'>'.$filepath.'/'.$file)) {
3223: &logthis('Failed to create '.$filepath.'/'.$file);
3224: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3225: return '/adm/notfound.html';
3226: }
1.1090 raeburn 3227: if ($context eq 'overwrite') {
1.1117 foxr 3228: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3229: my $target = $filepath.'/'.$file;
3230: if (-e $source) {
3231: my @info = stat($source);
3232: if ($info[9] eq $env{'form.timestamp'}) {
3233: unless (&File::Copy::move($source,$target)) {
3234: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3235: return "Moving from $source failed";
3236: }
3237: } else {
3238: return "Temporary file: $source had unexpected date/time for last modification";
3239: }
3240: } else {
3241: return "Temporary file: $source missing";
3242: }
3243: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3244: &logthis('Failed to write to '.$filepath.'/'.$file);
3245: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3246: return '/adm/notfound.html';
3247: }
1.570 albertel 3248: close(FH);
1.1051 raeburn 3249: if ($resizewidth && $resizeheight) {
3250: my $mm = new File::MMagic;
3251: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3252: if ($mime_type =~ m{^image/}) {
3253: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3254: }
1.977 amueller 3255: }
1.258 www 3256: }
1.1152 raeburn 3257: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3258: if (ref($mimetype)) {
3259: if ($$mimetype eq '') {
3260: my $mm = new File::MMagic;
3261: my $type = $mm->checktype_filename($filepath.'/'.$file);
3262: $$mimetype = $type;
3263: }
3264: }
3265: }
1.637 raeburn 3266: if ($parser eq 'parse') {
1.1152 raeburn 3267: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3268: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3269: $allfiles,$codebase);
3270: unless ($parse_result eq 'ok') {
3271: &logthis('Failed to parse '.$filepath.$file.
3272: ' for embedded media: '.$parse_result);
3273: }
1.637 raeburn 3274: }
3275: }
1.860 raeburn 3276: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3277: my $input = $filepath.'/'.$file;
3278: my $output = $filepath.'/'.'tn-'.$file;
3279: my $thumbsize = $thumbwidth.'x'.$thumbheight;
3280: system("convert -sample $thumbsize $input $output");
3281: if (-e $filepath.'/'.'tn-'.$file) {
3282: $fetchthumb = 1;
3283: }
3284: }
1.858 raeburn 3285:
1.259 www 3286: # Notify homeserver to grep it
3287: #
1.984 neumanie 3288: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3289: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3290: if ($fetchresult eq 'ok') {
1.860 raeburn 3291: if ($fetchthumb) {
3292: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3293: if ($thumbresult ne 'ok') {
3294: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3295: $docuhome.': '.$thumbresult);
3296: }
3297: }
1.259 www 3298: #
1.258 www 3299: # Return the URL to it
1.494 albertel 3300: return '/uploaded/'.$path.$file;
1.263 www 3301: } else {
1.494 albertel 3302: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3303: ': '.$fetchresult);
1.263 www 3304: return '/adm/notfound.html';
1.858 raeburn 3305: }
1.493 albertel 3306: }
3307:
1.637 raeburn 3308: sub extract_embedded_items {
1.961 raeburn 3309: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3310: my @state = ();
1.1164 raeburn 3311: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3312: my %javafiles = (
3313: codebase => '',
3314: code => '',
3315: archive => ''
3316: );
3317: my %mediafiles = (
3318: src => '',
3319: movie => '',
3320: );
1.648 raeburn 3321: my $p;
3322: if ($content) {
3323: $p = HTML::LCParser->new($content);
3324: } else {
1.961 raeburn 3325: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3326: }
1.641 albertel 3327: while (my $t=$p->get_token()) {
1.640 albertel 3328: if ($t->[0] eq 'S') {
3329: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3330: push(@state, $tagname);
1.648 raeburn 3331: if (lc($tagname) eq 'allow') {
3332: &add_filetype($allfiles,$attr->{'src'},'src');
3333: }
1.640 albertel 3334: if (lc($tagname) eq 'img') {
3335: &add_filetype($allfiles,$attr->{'src'},'src');
3336: }
1.886 albertel 3337: if (lc($tagname) eq 'a') {
3338: &add_filetype($allfiles,$attr->{'href'},'href');
3339: }
1.645 raeburn 3340: if (lc($tagname) eq 'script') {
1.1164 raeburn 3341: my $src;
1.645 raeburn 3342: if ($attr->{'archive'} =~ /\.jar$/i) {
3343: &add_filetype($allfiles,$attr->{'archive'},'archive');
3344: } else {
1.1164 raeburn 3345: if ($attr->{'src'} ne '') {
3346: $src = $attr->{'src'};
3347: &add_filetype($allfiles,$src,'src');
3348: }
3349: }
3350: my $text = $p->get_trimmed_text();
3351: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3352: my @swfargs = split(/,/,$1);
3353: foreach my $item (@swfargs) {
3354: $item =~ s/["']//g;
3355: $item =~ s/^\s+//;
3356: $item =~ s/\s+$//;
3357: }
3358: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3359: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3360: push(@{$related{$swfargs[0]}},$swfargs[2]);
3361: } else {
3362: $related{$swfargs[0]} = [$swfargs[2]];
3363: }
3364: }
1.645 raeburn 3365: }
3366: }
3367: if (lc($tagname) eq 'link') {
3368: if (lc($attr->{'rel'}) eq 'stylesheet') {
3369: &add_filetype($allfiles,$attr->{'href'},'href');
3370: }
3371: }
1.640 albertel 3372: if (lc($tagname) eq 'object' ||
3373: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3374: foreach my $item (keys(%javafiles)) {
3375: $javafiles{$item} = '';
3376: }
1.1164 raeburn 3377: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3378: $lastids{lc($tagname)} = $attr->{'id'};
3379: }
1.640 albertel 3380: }
3381: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3382: my $name = lc($attr->{'name'});
3383: foreach my $item (keys(%javafiles)) {
3384: if ($name eq $item) {
3385: $javafiles{$item} = $attr->{'value'};
3386: last;
3387: }
3388: }
1.1164 raeburn 3389: my $pathfrom;
1.640 albertel 3390: foreach my $item (keys(%mediafiles)) {
3391: if ($name eq $item) {
1.1164 raeburn 3392: $pathfrom = $attr->{'value'};
3393: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3394: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3395: last;
3396: }
3397: }
1.1164 raeburn 3398: if ($name eq 'flashvars') {
3399: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3400: }
3401: if ($pathfrom ne '') {
3402: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3403: $pathfrom);
3404: }
1.640 albertel 3405: }
3406: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3407: foreach my $item (keys(%javafiles)) {
3408: if ($attr->{$item}) {
3409: $javafiles{$item} = $attr->{$item};
3410: last;
3411: }
3412: }
3413: foreach my $item (keys(%mediafiles)) {
3414: if ($attr->{$item}) {
3415: &add_filetype($allfiles,$attr->{$item},$item);
3416: last;
3417: }
3418: }
1.1164 raeburn 3419: if (lc($tagname) eq 'embed') {
3420: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3421: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3422: $attr->{'src'});
3423: }
3424: }
1.640 albertel 3425: }
1.1164 raeburn 3426: if ($t->[4] =~ m{/>$}) {
3427: pop(@state);
3428: }
1.640 albertel 3429: } elsif ($t->[0] eq 'E') {
3430: my ($tagname) = ($t->[1]);
3431: if ($javafiles{'codebase'} ne '') {
3432: $javafiles{'codebase'} .= '/';
3433: }
3434: if (lc($tagname) eq 'applet' ||
3435: lc($tagname) eq 'object' ||
3436: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3437: ) {
3438: foreach my $item (keys(%javafiles)) {
3439: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3440: my $file=$javafiles{'codebase'}.$javafiles{$item};
3441: &add_filetype($allfiles,$file,$item);
3442: }
3443: }
3444: }
3445: pop @state;
3446: }
3447: }
1.1164 raeburn 3448: foreach my $id (sort(keys(%flashvars))) {
3449: if ($shockwave{$id} ne '') {
3450: my @pairs = split(/\&/,$flashvars{$id});
3451: foreach my $pair (@pairs) {
3452: my ($key,$value) = split(/\=/,$pair);
3453: if ($key eq 'thumb') {
3454: &add_filetype($allfiles,$value,$key);
3455: } elsif ($key eq 'content') {
3456: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3457: my ($ext) = ($value =~ /\.([^.]+)$/);
3458: if ($ext ne '') {
3459: &add_filetype($allfiles,$path.$value,$ext);
3460: }
3461: }
3462: }
3463: }
3464: }
1.637 raeburn 3465: return 'ok';
3466: }
3467:
1.639 albertel 3468: sub add_filetype {
3469: my ($allfiles,$file,$type)=@_;
3470: if (exists($allfiles->{$file})) {
3471: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3472: push(@{$allfiles->{$file}}, &escape($type));
3473: }
3474: } else {
3475: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3476: }
3477: }
3478:
1.1164 raeburn 3479: sub embedded_dependency {
3480: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3481: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3482: if (($identifier ne '') &&
3483: (ref($related->{$identifier}) eq 'ARRAY') &&
3484: ($pathfrom ne '')) {
3485: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3486: foreach my $dep (@{$related->{$identifier}}) {
3487: &add_filetype($allfiles,$path.$dep,'object');
3488: }
3489: }
3490: }
3491: return;
3492: }
3493:
1.493 albertel 3494: sub removeuploadedurl {
1.984 neumanie 3495: my ($url)=@_;
3496: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3497: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3498: }
3499:
3500: sub removeuserfile {
3501: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3502: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3503: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3504: if ($result eq 'ok') {
1.798 raeburn 3505: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3506: my $metafile = $fname.'.meta';
3507: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3508: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3509: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3510: my $sqlresult =
1.823 albertel 3511: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3512: 'portfolio_metadata',$group,
3513: 'delete');
1.798 raeburn 3514: }
3515: }
3516: return $result;
1.257 www 3517: }
1.15 www 3518:
1.530 albertel 3519: sub mkdiruserfile {
3520: my ($docuname,$docudom,$dir)=@_;
3521: my $home=&homeserver($docuname,$docudom);
3522: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3523: }
3524:
1.531 albertel 3525: sub renameuserfile {
3526: my ($docuname,$docudom,$old,$new)=@_;
3527: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3528: my $result = &reply("renameuserfile:$docudom:$docuname:".
3529: &escape("$old").':'.&escape("$new"),$home);
3530: if ($result eq 'ok') {
3531: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3532: my $oldmeta = $old.'.meta';
3533: my $newmeta = $new.'.meta';
3534: my $metaresult =
3535: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3536: my $url = "/uploaded/$docudom/$docuname/$old";
3537: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3538: my $sqlresult =
1.823 albertel 3539: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3540: 'portfolio_metadata',$group,
3541: 'delete');
1.798 raeburn 3542: }
3543: }
3544: return $result;
1.531 albertel 3545: }
3546:
1.14 www 3547: # ------------------------------------------------------------------------- Log
3548:
3549: sub log {
3550: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3551: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3552: }
3553:
3554: # ------------------------------------------------------------------ Course Log
1.352 www 3555: #
3556: # This routine flushes several buffers of non-mission-critical nature
3557: #
1.157 www 3558:
3559: sub flushcourselogs {
1.352 www 3560: &logthis('Flushing log buffers');
3561: #
3562: # course logs
3563: # This is a log of all transactions in a course, which can be used
3564: # for data mining purposes
3565: #
3566: # It also collects the courseid database, which lists last transaction
3567: # times and course titles for all courseids
3568: #
3569: my %courseidbuffer=();
1.921 raeburn 3570: foreach my $crsid (keys(%courselogs)) {
1.352 www 3571: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3572: &escape($courselogs{$crsid}),
3573: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3574: delete $courselogs{$crsid};
3575: } else {
3576: &logthis('Failed to flush log buffer for '.$crsid);
3577: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3578: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3579: " exceeded maximum size, deleting.</font>");
3580: delete $courselogs{$crsid};
3581: }
1.352 www 3582: }
1.920 raeburn 3583: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3584: 'description' => $coursedescrbuf{$crsid},
3585: 'inst_code' => $courseinstcodebuf{$crsid},
3586: 'type' => $coursetypebuf{$crsid},
3587: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3588: };
1.191 harris41 3589: }
1.352 www 3590: #
3591: # Write course id database (reverse lookup) to homeserver of courses
3592: # Is used in pickcourse
3593: #
1.840 albertel 3594: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3595: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3596: $courseidbuffer{$crs_home},
3597: $crs_home,'timeonly');
1.352 www 3598: }
3599: #
3600: # File accesses
3601: # Writes to the dynamic metadata of resources to get hit counts, etc.
3602: #
1.449 matthew 3603: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3604: if ($entry =~ /___count$/) {
3605: my ($dom,$name);
1.807 albertel 3606: ($dom,$name,undef)=
1.811 albertel 3607: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3608: if (! defined($dom) || $dom eq '' ||
3609: ! defined($name) || $name eq '') {
1.620 albertel 3610: my $cid = $env{'request.course.id'};
3611: $dom = $env{'request.'.$cid.'.domain'};
3612: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3613: }
1.450 matthew 3614: my $value = $accesshash{$entry};
3615: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3616: my %temphash=($url => $value);
1.449 matthew 3617: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3618: if ($result eq 'ok') {
3619: delete $accesshash{$entry};
3620: }
3621: } else {
1.811 albertel 3622: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 3623: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 3624: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 3625: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
3626: delete $accesshash{$entry};
3627: }
1.185 www 3628: }
1.191 harris41 3629: }
1.352 www 3630: #
3631: # Roles
3632: # Reverse lookup of user roles for course faculty/staff and co-authorship
3633: #
1.800 albertel 3634: foreach my $entry (keys(%userrolehash)) {
1.351 www 3635: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 3636: split(/\:/,$entry);
3637: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 3638: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 3639: $rudom,$runame) eq 'ok') {
3640: delete $userrolehash{$entry};
3641: }
3642: }
1.662 raeburn 3643: #
3644: # Reverse lookup of domain roles (dc, ad, li, sc, au)
3645: #
3646: my %domrolebuffer = ();
1.1000 raeburn 3647: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 3648: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 3649: if ($domrolebuffer{$rudom}) {
3650: $domrolebuffer{$rudom}.='&'.&escape($entry).
3651: '='.&escape($domainrolehash{$entry});
3652: } else {
3653: $domrolebuffer{$rudom}.=&escape($entry).
3654: '='.&escape($domainrolehash{$entry});
3655: }
3656: delete $domainrolehash{$entry};
3657: }
3658: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 3659: my %servers = &get_servers($dom,'library');
3660: foreach my $tryserver (keys(%servers)) {
3661: unless (&reply('domroleput:'.$dom.':'.
3662: $domrolebuffer{$dom},$tryserver) eq 'ok') {
3663: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
3664: }
1.662 raeburn 3665: }
3666: }
1.186 www 3667: $dumpcount++;
1.157 www 3668: }
3669:
3670: sub courselog {
3671: my $what=shift;
1.158 www 3672: $what=time.':'.$what;
1.620 albertel 3673: unless ($env{'request.course.id'}) { return ''; }
3674: $coursedombuf{$env{'request.course.id'}}=
3675: $env{'course.'.$env{'request.course.id'}.'.domain'};
3676: $coursenumbuf{$env{'request.course.id'}}=
3677: $env{'course.'.$env{'request.course.id'}.'.num'};
3678: $coursehombuf{$env{'request.course.id'}}=
3679: $env{'course.'.$env{'request.course.id'}.'.home'};
3680: $coursedescrbuf{$env{'request.course.id'}}=
3681: $env{'course.'.$env{'request.course.id'}.'.description'};
3682: $courseinstcodebuf{$env{'request.course.id'}}=
3683: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3684: $courseownerbuf{$env{'request.course.id'}}=
3685: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3686: $coursetypebuf{$env{'request.course.id'}}=
3687: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3688: if (defined $courselogs{$env{'request.course.id'}}) {
3689: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3690: } else {
1.620 albertel 3691: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3692: }
1.620 albertel 3693: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3694: &flushcourselogs();
3695: }
1.158 www 3696: }
3697:
3698: sub courseacclog {
3699: my $fnsymb=shift;
1.620 albertel 3700: unless ($env{'request.course.id'}) { return ''; }
3701: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 3702: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 3703: $what.=':POST';
1.583 matthew 3704: # FIXME: Probably ought to escape things....
1.800 albertel 3705: foreach my $key (keys(%env)) {
3706: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3707: my $formitem = $1;
3708: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3709: $what.=':'.$formitem.'='.$env{$key};
3710: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3711: $what.=':'.$formitem.'='.$env{$key};
3712: }
1.158 www 3713: }
1.191 harris41 3714: }
1.583 matthew 3715: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3716: # FIXME: We should not be depending on a form parameter that someone
3717: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3718: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3719: $what.= ':POST';
3720: # FIXME: Probably ought to escape things....
3721: foreach my $element ('courseexp','crsfulltext','crsrelated',
3722: 'crsdiscuss') {
1.620 albertel 3723: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3724: }
3725: }
1.158 www 3726: }
3727: &courselog($what);
1.149 www 3728: }
3729:
1.185 www 3730: sub countacc {
3731: my $url=&declutter(shift);
1.458 matthew 3732: return if (! defined($url) || $url eq '');
1.620 albertel 3733: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 3734: #
3735: # Mark that this url was used in this course
3736: #
1.620 albertel 3737: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 3738: #
3739: # Increase the access count for this resource in this child process
3740: #
1.281 www 3741: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3742: $accesshash{$key}++;
1.185 www 3743: }
1.349 www 3744:
1.361 www 3745: sub linklog {
3746: my ($from,$to)=@_;
3747: $from=&declutter($from);
3748: $to=&declutter($to);
3749: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3750: $accesshash{$to.'___'.$from.'___goto'}=1;
3751: }
1.1160 www 3752:
3753: sub statslog {
3754: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
3755: if ($users<2) { return; }
3756: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
3757: 'course' => $env{'request.course.id'},
3758: 'sections' => '"all"',
3759: 'num_students' => $users,
3760: 'part' => $part,
3761: 'symb' => $symb,
3762: 'mean_tries' => $av_attempts,
3763: 'deg_of_diff' => $degdiff});
3764: foreach my $key (keys(%dynstore)) {
3765: $accesshash{$key}=$dynstore{$key};
3766: }
3767: }
1.361 www 3768:
1.349 www 3769: sub userrolelog {
3770: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 3771: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 3772: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3773: $userrolehash
3774: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3775: =$tend.':'.$tstart;
1.662 raeburn 3776: }
1.1169 droeschl 3777: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 3778: $userrolehash
3779: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3780: =$tend.':'.$tstart;
3781: }
1.1169 droeschl 3782: if ($trole =~ /^(dc|ad|li|au|dg|sc)/ ) {
1.662 raeburn 3783: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3784: $domainrolehash
3785: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3786: = $tend.':'.$tstart;
3787: }
1.351 www 3788: }
3789:
1.957 raeburn 3790: sub courserolelog {
3791: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1184 raeburn 3792: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
3793: my $cdom = $1;
3794: my $cnum = $2;
3795: my $sec = $3;
3796: my $namespace = 'rolelog';
3797: my %storehash = (
3798: role => $trole,
3799: start => $tstart,
3800: end => $tend,
3801: selfenroll => $selfenroll,
3802: context => $context,
3803: );
3804: if ($trole eq 'gr') {
3805: $namespace = 'groupslog';
3806: $storehash{'group'} = $sec;
3807: } else {
3808: $storehash{'section'} = $sec;
3809: }
1.1188 raeburn 3810: &write_log('course',$namespace,\%storehash,$delflag,$username,
3811: $domain,$cnum,$cdom);
1.1184 raeburn 3812: if (($trole ne 'st') || ($sec ne '')) {
3813: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 3814: }
3815: }
3816: return;
3817: }
3818:
1.1184 raeburn 3819: sub domainrolelog {
3820: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3821: if ($area =~ m{^/($match_domain)/$}) {
3822: my $cdom = $1;
3823: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
3824: my $namespace = 'rolelog';
3825: my %storehash = (
3826: role => $trole,
3827: start => $tstart,
3828: end => $tend,
3829: context => $context,
3830: );
1.1188 raeburn 3831: &write_log('domain',$namespace,\%storehash,$delflag,$username,
3832: $domain,$domconfiguser,$cdom);
1.1184 raeburn 3833: }
3834: return;
3835:
3836: }
3837:
3838: sub coauthorrolelog {
3839: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3840: if ($area =~ m{^/($match_domain)/($match_username)$}) {
3841: my $audom = $1;
3842: my $auname = $2;
3843: my $namespace = 'rolelog';
3844: my %storehash = (
3845: role => $trole,
3846: start => $tstart,
3847: end => $tend,
3848: context => $context,
3849: );
1.1188 raeburn 3850: &write_log('author',$namespace,\%storehash,$delflag,$username,
3851: $domain,$auname,$audom);
1.1184 raeburn 3852: }
3853: return;
3854: }
3855:
1.351 www 3856: sub get_course_adv_roles {
1.948 raeburn 3857: my ($cid,$codes) = @_;
1.620 albertel 3858: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 3859: my %coursehash=&coursedescription($cid);
1.988 raeburn 3860: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 3861: my %nothide=();
1.800 albertel 3862: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 3863: if ($user !~ /:/) {
3864: $nothide{join(':',split(/[\@]/,$user))}=1;
3865: } else {
3866: $nothide{$user}=1;
3867: }
1.470 www 3868: }
1.351 www 3869: my %returnhash=();
3870: my %dumphash=
3871: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
3872: my $now=time;
1.997 raeburn 3873: my %privileged;
1.1000 raeburn 3874: foreach my $entry (keys(%dumphash)) {
1.800 albertel 3875: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 3876: if (($tstart) && ($tstart<0)) { next; }
3877: if (($tend) && ($tend<$now)) { next; }
3878: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 3879: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 3880: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 3881: unless (ref($privileged{$domain}) eq 'HASH') {
3882: my %dompersonnel =
1.998 raeburn 3883: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3884: $privileged{$domain} = {};
3885: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3886: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3887: foreach my $user (keys(%{$dompersonnel{$server}})) {
3888: my ($trole,$uname,$udom) = split(/:/,$user);
3889: $privileged{$udom}{$uname} = 1;
3890: }
3891: }
3892: }
3893: }
3894: if ((exists($privileged{$domain}{$username})) &&
3895: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3896: if ($role eq 'cr') { next; }
1.948 raeburn 3897: if ($codes) {
3898: if ($section) { $role .= ':'.$section; }
3899: if ($returnhash{$role}) {
3900: $returnhash{$role}.=','.$username.':'.$domain;
3901: } else {
3902: $returnhash{$role}=$username.':'.$domain;
3903: }
1.351 www 3904: } else {
1.988 raeburn 3905: my $key=&plaintext($role,$crstype);
1.973 bisitz 3906: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3907: if ($returnhash{$key}) {
3908: $returnhash{$key}.=','.$username.':'.$domain;
3909: } else {
3910: $returnhash{$key}=$username.':'.$domain;
3911: }
1.351 www 3912: }
1.948 raeburn 3913: }
1.400 www 3914: return %returnhash;
3915: }
3916:
3917: sub get_my_roles {
1.937 raeburn 3918: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3919: unless (defined($uname)) { $uname=$env{'user.name'}; }
3920: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3921: my (%dumphash,%nothide);
1.1086 raeburn 3922: if ($context eq 'userroles') {
1.1166 raeburn 3923: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 3924: } else {
3925: %dumphash=
1.400 www 3926: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3927: if ($hidepriv) {
3928: my %coursehash=&coursedescription($udom.'_'.$uname);
3929: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3930: if ($user !~ /:/) {
3931: $nothide{join(':',split(/[\@]/,$user))} = 1;
3932: } else {
3933: $nothide{$user} = 1;
3934: }
3935: }
3936: }
1.858 raeburn 3937: }
1.400 www 3938: my %returnhash=();
3939: my $now=time;
1.999 raeburn 3940: my %privileged;
1.800 albertel 3941: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3942: my ($role,$tend,$tstart);
3943: if ($context eq 'userroles') {
1.1149 raeburn 3944: next if ($entry =~ /^rolesdef/);
1.867 raeburn 3945: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3946: } else {
3947: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3948: }
1.400 www 3949: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3950: my $status = 'active';
1.939 raeburn 3951: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3952: $status = 'previous';
3953: }
3954: if (($tstart) && ($now<$tstart)) {
3955: $status = 'future';
3956: }
3957: if (ref($types) eq 'ARRAY') {
3958: if (!grep(/^\Q$status\E$/,@{$types})) {
3959: next;
3960: }
3961: } else {
3962: if ($status ne 'active') {
3963: next;
3964: }
3965: }
1.867 raeburn 3966: my ($rolecode,$username,$domain,$section,$area);
3967: if ($context eq 'userroles') {
1.1186 raeburn 3968: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 3969: (undef,$domain,$username,$section) = split(/\//,$area);
3970: } else {
3971: ($role,$username,$domain,$section) = split(/\:/,$entry);
3972: }
1.832 raeburn 3973: if (ref($roledoms) eq 'ARRAY') {
3974: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3975: next;
3976: }
3977: }
3978: if (ref($roles) eq 'ARRAY') {
3979: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3980: if ($role =~ /^cr\//) {
3981: if (!grep(/^cr$/,@{$roles})) {
3982: next;
3983: }
1.1104 raeburn 3984: } elsif ($role =~ /^gr\//) {
3985: if (!grep(/^gr$/,@{$roles})) {
3986: next;
3987: }
1.922 raeburn 3988: } else {
3989: next;
3990: }
1.832 raeburn 3991: }
1.867 raeburn 3992: }
1.937 raeburn 3993: if ($hidepriv) {
1.999 raeburn 3994: if ($context eq 'userroles') {
3995: if ((&privileged($username,$domain)) &&
3996: (!$nothide{$username.':'.$domain})) {
3997: next;
3998: }
3999: } else {
4000: unless (ref($privileged{$domain}) eq 'HASH') {
4001: my %dompersonnel =
4002: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
4003: $privileged{$domain} = {};
4004: if (keys(%dompersonnel)) {
4005: foreach my $server (keys(%dompersonnel)) {
4006: if (ref($dompersonnel{$server}) eq 'HASH') {
4007: foreach my $user (keys(%{$dompersonnel{$server}})) {
4008: my ($trole,$uname,$udom) = split(/:/,$user);
4009: $privileged{$udom}{$uname} = $trole;
4010: }
4011: }
4012: }
4013: }
4014: }
4015: if (exists($privileged{$domain}{$username})) {
4016: if (!$nothide{$username.':'.$domain}) {
4017: next;
4018: }
4019: }
1.937 raeburn 4020: }
4021: }
1.933 raeburn 4022: if ($withsec) {
4023: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4024: $tstart.':'.$tend;
4025: } else {
4026: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4027: }
1.832 raeburn 4028: }
1.373 www 4029: return %returnhash;
1.399 www 4030: }
4031:
4032: # ----------------------------------------------------- Frontpage Announcements
4033: #
4034: #
4035:
4036: sub postannounce {
4037: my ($server,$text)=@_;
1.844 albertel 4038: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4039: unless ($text=~/\w/) { $text=''; }
4040: return &reply('setannounce:'.&escape($text),$server);
4041: }
4042:
4043: sub getannounce {
1.448 albertel 4044:
4045: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4046: my $announcement='';
1.800 albertel 4047: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4048: close($fh);
1.399 www 4049: if ($announcement=~/\w/) {
4050: return
4051: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4052: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4053: } else {
4054: return '';
4055: }
4056: } else {
4057: return '';
4058: }
1.351 www 4059: }
1.353 www 4060:
4061: # ---------------------------------------------------------- Course ID routines
4062: # Deal with domain's nohist_courseid.db files
4063: #
4064:
4065: sub courseidput {
1.921 raeburn 4066: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4067: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4068: my $outcome;
4069: if ($caller eq 'timeonly') {
4070: my $cids = '';
4071: foreach my $item (keys(%$storehash)) {
4072: $cids.=&escape($item).'&';
4073: }
4074: $cids=~s/\&$//;
4075: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4076: $coursehome);
4077: } else {
4078: my $items = '';
4079: foreach my $item (keys(%$storehash)) {
4080: $items.= &escape($item).'='.
4081: &freeze_escape($$storehash{$item}).'&';
4082: }
4083: $items=~s/\&$//;
4084: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4085: $coursehome);
1.918 raeburn 4086: }
4087: if ($outcome eq 'unknown_cmd') {
4088: my $what;
4089: foreach my $cid (keys(%$storehash)) {
4090: $what .= &escape($cid).'=';
1.921 raeburn 4091: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4092: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4093: }
4094: $what =~ s/\:$/&/;
4095: }
4096: $what =~ s/\&$//;
4097: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4098: } else {
4099: return $outcome;
4100: }
1.353 www 4101: }
4102:
4103: sub courseiddump {
1.921 raeburn 4104: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4105: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4106: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 4107: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 4108: my $as_hash = 1;
4109: my %returnhash;
4110: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4111: my %libserv = &all_library();
4112: foreach my $tryserver (keys(%libserv)) {
4113: if ( ( $hostidflag == 1
4114: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4115: || (!defined($hostidflag)) ) {
4116:
1.918 raeburn 4117: if (($domfilter eq '') ||
4118: (&host_domain($tryserver) eq $domfilter)) {
1.1180 droeschl 4119: my $rep;
4120: if (grep { $_ eq $tryserver } current_machine_ids()) {
4121: $rep = LONCAPA::Lond::dump_course_id_handler(
4122: join(":", (&host_domain($tryserver), $sincefilter,
4123: &escape($descfilter), &escape($instcodefilter),
4124: &escape($ownerfilter), &escape($coursefilter),
4125: &escape($typefilter), &escape($regexp_ok),
4126: $as_hash, &escape($selfenrollonly),
4127: &escape($catfilter), $showhidden, $caller,
4128: &escape($cloner), &escape($cc_clone), $cloneonly,
4129: &escape($createdbefore), &escape($createdafter),
4130: &escape($creationcontext), $domcloner)));
4131: } else {
4132: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
4133: $sincefilter.':'.&escape($descfilter).':'.
4134: &escape($instcodefilter).':'.&escape($ownerfilter).
4135: ':'.&escape($coursefilter).':'.&escape($typefilter).
4136: ':'.&escape($regexp_ok).':'.$as_hash.':'.
4137: &escape($selfenrollonly).':'.&escape($catfilter).':'.
4138: $showhidden.':'.$caller.':'.&escape($cloner).':'.
4139: &escape($cc_clone).':'.$cloneonly.':'.
4140: &escape($createdbefore).':'.&escape($createdafter).':'.
4141: &escape($creationcontext).':'.$domcloner,
4142: $tryserver);
4143: }
4144:
1.918 raeburn 4145: my @pairs=split(/\&/,$rep);
4146: foreach my $item (@pairs) {
4147: my ($key,$value)=split(/\=/,$item,2);
4148: $key = &unescape($key);
4149: next if ($key =~ /^error: 2 /);
4150: my $result = &thaw_unescape($value);
4151: if (ref($result) eq 'HASH') {
4152: $returnhash{$key}=$result;
4153: } else {
1.921 raeburn 4154: my @responses = split(/:/,$value);
4155: my @items = ('description','inst_code','owner','type');
1.918 raeburn 4156: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 4157: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 4158: }
1.1008 raeburn 4159: }
1.353 www 4160: }
4161: }
4162: }
4163: }
4164: return %returnhash;
4165: }
4166:
1.1055 raeburn 4167: sub courselastaccess {
4168: my ($cdom,$cnum,$hostidref) = @_;
4169: my %returnhash;
4170: if ($cdom && $cnum) {
4171: my $chome = &homeserver($cnum,$cdom);
4172: if ($chome ne 'no_host') {
4173: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
4174: &extract_lastaccess(\%returnhash,$rep);
4175: }
4176: } else {
4177: if (!$cdom) { $cdom=''; }
4178: my %libserv = &all_library();
4179: foreach my $tryserver (keys(%libserv)) {
4180: if (ref($hostidref) eq 'ARRAY') {
4181: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
4182: }
4183: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
4184: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
4185: &extract_lastaccess(\%returnhash,$rep);
4186: }
4187: }
4188: }
4189: return %returnhash;
4190: }
4191:
4192: sub extract_lastaccess {
4193: my ($returnhash,$rep) = @_;
4194: if (ref($returnhash) eq 'HASH') {
4195: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
4196: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
4197: $rep eq '') {
4198: my @pairs=split(/\&/,$rep);
4199: foreach my $item (@pairs) {
4200: my ($key,$value)=split(/\=/,$item,2);
4201: $key = &unescape($key);
4202: next if ($key =~ /^error: 2 /);
4203: $returnhash->{$key} = &thaw_unescape($value);
4204: }
4205: }
4206: }
4207: return;
4208: }
4209:
1.658 raeburn 4210: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 4211:
4212: sub dcmailput {
1.685 raeburn 4213: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 4214: my $status = &Apache::lonnet::critical(
1.740 www 4215: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
4216: &escape($message),$server);
1.662 raeburn 4217: return $status;
4218: }
4219:
1.658 raeburn 4220: sub dcmaildump {
4221: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 4222: my %returnhash=();
1.846 albertel 4223:
4224: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 4225: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
4226: &escape($enddate).':';
4227: my @esc_senders=map { &escape($_)} @$senders;
4228: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 4229: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 4230: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 4231: if (($key) && ($value)) {
4232: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 4233: }
4234: }
4235: }
4236: return %returnhash;
4237: }
1.662 raeburn 4238: # ---------------------------------------------------------- Domain roles
4239:
4240: sub get_domain_roles {
4241: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 4242: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 4243: $startdate = '.';
4244: }
1.1018 raeburn 4245: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 4246: $enddate = '.';
4247: }
1.922 raeburn 4248: my $rolelist;
4249: if (ref($roles) eq 'ARRAY') {
4250: $rolelist = join(':',@{$roles});
4251: }
1.662 raeburn 4252: my %personnel = ();
1.841 albertel 4253:
4254: my %servers = &get_servers($dom,'library');
4255: foreach my $tryserver (keys(%servers)) {
4256: %{$personnel{$tryserver}}=();
4257: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
4258: &escape($startdate).':'.
4259: &escape($enddate).':'.
4260: &escape($rolelist), $tryserver))) {
4261: my ($key,$value) = split(/\=/,$line,2);
4262: if (($key) && ($value)) {
4263: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
4264: }
4265: }
1.662 raeburn 4266: }
4267: return %personnel;
4268: }
1.658 raeburn 4269:
1.1057 www 4270: # ----------------------------------------------------------- Interval timing
1.149 www 4271:
1.1153 www 4272: {
4273: # Caches needed for speedup of navmaps
4274: # We don't want to cache this for very long at all (5 seconds at most)
4275: #
4276: # The user for whom we cache
4277: my $cachedkey='';
4278: # The cached times for this user
4279: my %cachedtimes=();
4280: # When this was last done
4281: my $cachedtime=();
4282:
4283: sub load_all_first_access {
1.1154 raeburn 4284: my ($uname,$udom)=@_;
1.1156 www 4285: if (($cachedkey eq $uname.':'.$udom) &&
1.1174 raeburn 4286: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4287: return;
4288: }
4289: $cachedtime=time;
4290: $cachedkey=$uname.':'.$udom;
4291: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4292: }
4293:
1.504 albertel 4294: sub get_first_access {
1.1162 raeburn 4295: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4296: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4297: if ($argsymb) { $symb=$argsymb; }
4298: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4299: if ($argmap) { $map = $argmap; }
1.926 albertel 4300: if ($type eq 'course') {
4301: $res='course';
4302: } elsif ($type eq 'map') {
1.588 albertel 4303: $res=&symbread($map);
4304: } else {
4305: $res=$symb;
4306: }
1.1153 www 4307: &load_all_first_access($uname,$udom);
4308: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4309: }
4310:
4311: sub set_first_access {
1.1162 raeburn 4312: my ($type,$interval)=@_;
1.790 albertel 4313: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4314: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4315: if ($type eq 'course') {
4316: $res='course';
4317: } elsif ($type eq 'map') {
1.588 albertel 4318: $res=&symbread($map);
4319: } else {
4320: $res=$symb;
4321: }
1.1153 www 4322: $cachedkey='';
1.1162 raeburn 4323: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4324: if (!$firstaccess) {
1.1162 raeburn 4325: my $start = time;
4326: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4327: $udom,$uname);
4328: if ($putres eq 'ok') {
4329: &put('timerinterval',{"$courseid\0$res"=>$interval},
4330: $udom,$uname);
4331: &appenv(
4332: {
4333: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4334: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4335: }
4336: );
4337: }
4338: return $putres;
1.505 albertel 4339: }
4340: return 'already_set';
1.504 albertel 4341: }
1.1153 www 4342: }
1.110 www 4343: # --------------------------------------------- Set Expire Date for Spreadsheet
4344:
4345: sub expirespread {
4346: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 4347: my $cid=$env{'request.course.id'};
1.110 www 4348: if ($cid) {
4349: my $now=time;
4350: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 4351: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
4352: $env{'course.'.$cid.'.num'}.
1.110 www 4353: ':nohist_expirationdates:'.
4354: &escape($key).'='.$now,
1.620 albertel 4355: $env{'course.'.$cid.'.home'})
1.110 www 4356: }
4357: return 'ok';
1.14 www 4358: }
4359:
1.109 www 4360: # ----------------------------------------------------- Devalidate Spreadsheets
4361:
4362: sub devalidate {
1.325 www 4363: my ($symb,$uname,$udom)=@_;
1.620 albertel 4364: my $cid=$env{'request.course.id'};
1.109 www 4365: if ($cid) {
1.391 matthew 4366: # delete the stored spreadsheets for
4367: # - the student level sheet of this user in course's homespace
4368: # - the assessment level sheet for this resource
4369: # for this user in user's homespace
1.553 albertel 4370: # - current conditional state info
1.325 www 4371: my $key=$uname.':'.$udom.':';
1.109 www 4372: my $status=
1.299 matthew 4373: &del('nohist_calculatedsheets',
1.391 matthew 4374: [$key.'studentcalc:'],
1.620 albertel 4375: $env{'course.'.$cid.'.domain'},
4376: $env{'course.'.$cid.'.num'})
1.133 albertel 4377: .' '.
4378: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 4379: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 4380: unless ($status eq 'ok ok') {
4381: &logthis('Could not devalidate spreadsheet '.
1.325 www 4382: $uname.' at '.$udom.' for '.
1.109 www 4383: $symb.': '.$status);
1.133 albertel 4384: }
1.553 albertel 4385: &delenv('user.state.'.$cid);
1.109 www 4386: }
4387: }
4388:
1.265 albertel 4389: sub get_scalar {
4390: my ($string,$end) = @_;
4391: my $value;
4392: if ($$string =~ s/^([^&]*?)($end)/$2/) {
4393: $value = $1;
4394: } elsif ($$string =~ s/^([^&]*?)&//) {
4395: $value = $1;
4396: }
4397: return &unescape($value);
4398: }
4399:
4400: sub array2str {
4401: my (@array) = @_;
4402: my $result=&arrayref2str(\@array);
4403: $result=~s/^__ARRAY_REF__//;
4404: $result=~s/__END_ARRAY_REF__$//;
4405: return $result;
4406: }
4407:
1.204 albertel 4408: sub arrayref2str {
4409: my ($arrayref) = @_;
1.265 albertel 4410: my $result='__ARRAY_REF__';
1.204 albertel 4411: foreach my $elem (@$arrayref) {
1.265 albertel 4412: if(ref($elem) eq 'ARRAY') {
4413: $result.=&arrayref2str($elem).'&';
4414: } elsif(ref($elem) eq 'HASH') {
4415: $result.=&hashref2str($elem).'&';
4416: } elsif(ref($elem)) {
4417: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 4418: } else {
4419: $result.=&escape($elem).'&';
4420: }
4421: }
4422: $result=~s/\&$//;
1.265 albertel 4423: $result .= '__END_ARRAY_REF__';
1.204 albertel 4424: return $result;
4425: }
4426:
1.168 albertel 4427: sub hash2str {
1.204 albertel 4428: my (%hash) = @_;
4429: my $result=&hashref2str(\%hash);
1.265 albertel 4430: $result=~s/^__HASH_REF__//;
4431: $result=~s/__END_HASH_REF__$//;
1.204 albertel 4432: return $result;
4433: }
4434:
4435: sub hashref2str {
4436: my ($hashref)=@_;
1.265 albertel 4437: my $result='__HASH_REF__';
1.800 albertel 4438: foreach my $key (sort(keys(%$hashref))) {
4439: if (ref($key) eq 'ARRAY') {
4440: $result.=&arrayref2str($key).'=';
4441: } elsif (ref($key) eq 'HASH') {
4442: $result.=&hashref2str($key).'=';
4443: } elsif (ref($key)) {
1.265 albertel 4444: $result.='=';
1.800 albertel 4445: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 4446: } else {
1.1132 raeburn 4447: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 4448: }
4449:
1.800 albertel 4450: if(ref($hashref->{$key}) eq 'ARRAY') {
4451: $result.=&arrayref2str($hashref->{$key}).'&';
4452: } elsif(ref($hashref->{$key}) eq 'HASH') {
4453: $result.=&hashref2str($hashref->{$key}).'&';
4454: } elsif(ref($hashref->{$key})) {
1.265 albertel 4455: $result.='&';
1.800 albertel 4456: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 4457: } else {
1.800 albertel 4458: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 4459: }
4460: }
1.168 albertel 4461: $result=~s/\&$//;
1.265 albertel 4462: $result .= '__END_HASH_REF__';
1.168 albertel 4463: return $result;
4464: }
4465:
4466: sub str2hash {
1.265 albertel 4467: my ($string)=@_;
4468: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
4469: return %$hash;
4470: }
4471:
4472: sub str2hashref {
1.168 albertel 4473: my ($string) = @_;
1.265 albertel 4474:
4475: my %hash;
4476:
4477: if($string !~ /^__HASH_REF__/) {
4478: if (! ($string eq '' || !defined($string))) {
4479: $hash{'error'}='Not hash reference';
4480: }
4481: return (\%hash, $string);
4482: }
4483:
4484: $string =~ s/^__HASH_REF__//;
4485:
4486: while($string !~ /^__END_HASH_REF__/) {
4487: #key
4488: my $key='';
4489: if($string =~ /^__HASH_REF__/) {
4490: ($key, $string)=&str2hashref($string);
4491: if(defined($key->{'error'})) {
4492: $hash{'error'}='Bad data';
4493: return (\%hash, $string);
4494: }
4495: } elsif($string =~ /^__ARRAY_REF__/) {
4496: ($key, $string)=&str2arrayref($string);
4497: if($key->[0] eq 'Array reference error') {
4498: $hash{'error'}='Bad data';
4499: return (\%hash, $string);
4500: }
4501: } else {
4502: $string =~ s/^(.*?)=//;
1.267 albertel 4503: $key=&unescape($1);
1.265 albertel 4504: }
4505: $string =~ s/^=//;
4506:
4507: #value
4508: my $value='';
4509: if($string =~ /^__HASH_REF__/) {
4510: ($value, $string)=&str2hashref($string);
4511: if(defined($value->{'error'})) {
4512: $hash{'error'}='Bad data';
4513: return (\%hash, $string);
4514: }
4515: } elsif($string =~ /^__ARRAY_REF__/) {
4516: ($value, $string)=&str2arrayref($string);
4517: if($value->[0] eq 'Array reference error') {
4518: $hash{'error'}='Bad data';
4519: return (\%hash, $string);
4520: }
4521: } else {
4522: $value=&get_scalar(\$string,'__END_HASH_REF__');
4523: }
4524: $string =~ s/^&//;
4525:
4526: $hash{$key}=$value;
1.204 albertel 4527: }
1.265 albertel 4528:
4529: $string =~ s/^__END_HASH_REF__//;
4530:
4531: return (\%hash, $string);
1.204 albertel 4532: }
4533:
4534: sub str2array {
1.265 albertel 4535: my ($string)=@_;
4536: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
4537: return @$array;
4538: }
4539:
4540: sub str2arrayref {
1.204 albertel 4541: my ($string) = @_;
1.265 albertel 4542: my @array;
4543:
4544: if($string !~ /^__ARRAY_REF__/) {
4545: if (! ($string eq '' || !defined($string))) {
4546: $array[0]='Array reference error';
4547: }
4548: return (\@array, $string);
4549: }
4550:
4551: $string =~ s/^__ARRAY_REF__//;
4552:
4553: while($string !~ /^__END_ARRAY_REF__/) {
4554: my $value='';
4555: if($string =~ /^__HASH_REF__/) {
4556: ($value, $string)=&str2hashref($string);
4557: if(defined($value->{'error'})) {
4558: $array[0] ='Array reference error';
4559: return (\@array, $string);
4560: }
4561: } elsif($string =~ /^__ARRAY_REF__/) {
4562: ($value, $string)=&str2arrayref($string);
4563: if($value->[0] eq 'Array reference error') {
4564: $array[0] ='Array reference error';
4565: return (\@array, $string);
4566: }
4567: } else {
4568: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
4569: }
4570: $string =~ s/^&//;
4571:
4572: push(@array, $value);
1.191 harris41 4573: }
1.265 albertel 4574:
4575: $string =~ s/^__END_ARRAY_REF__//;
4576:
4577: return (\@array, $string);
1.168 albertel 4578: }
4579:
1.167 albertel 4580: # -------------------------------------------------------------------Temp Store
4581:
1.168 albertel 4582: sub tmpreset {
4583: my ($symb,$namespace,$domain,$stuname) = @_;
4584: if (!$symb) {
4585: $symb=&symbread();
1.620 albertel 4586: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4587: }
4588: $symb=escape($symb);
4589:
1.620 albertel 4590: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 4591: $namespace=~s/\//\_/g;
4592: $namespace=~s/\W//g;
4593:
1.620 albertel 4594: if (!$domain) { $domain=$env{'user.domain'}; }
4595: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4596: if ($domain eq 'public' && $stuname eq 'public') {
4597: $stuname=$ENV{'REMOTE_ADDR'};
4598: }
1.1117 foxr 4599: my $path=LONCAPA::tempdir();
1.168 albertel 4600: my %hash;
4601: if (tie(%hash,'GDBM_File',
4602: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4603: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 4604: foreach my $key (keys(%hash)) {
1.180 albertel 4605: if ($key=~ /:$symb/) {
1.168 albertel 4606: delete($hash{$key});
4607: }
4608: }
4609: }
4610: }
4611:
1.167 albertel 4612: sub tmpstore {
1.168 albertel 4613: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4614:
4615: if (!$symb) {
4616: $symb=&symbread();
1.620 albertel 4617: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4618: }
4619: $symb=escape($symb);
4620:
4621: if (!$namespace) {
4622: # I don't think we would ever want to store this for a course.
4623: # it seems this will only be used if we don't have a course.
1.620 albertel 4624: #$namespace=$env{'request.course.id'};
1.168 albertel 4625: #if (!$namespace) {
1.620 albertel 4626: $namespace=$env{'request.state'};
1.168 albertel 4627: #}
4628: }
4629: $namespace=~s/\//\_/g;
4630: $namespace=~s/\W//g;
1.620 albertel 4631: if (!$domain) { $domain=$env{'user.domain'}; }
4632: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4633: if ($domain eq 'public' && $stuname eq 'public') {
4634: $stuname=$ENV{'REMOTE_ADDR'};
4635: }
1.168 albertel 4636: my $now=time;
4637: my %hash;
1.1117 foxr 4638: my $path=LONCAPA::tempdir();
1.168 albertel 4639: if (tie(%hash,'GDBM_File',
4640: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4641: &GDBM_WRCREAT(),0640)) {
1.168 albertel 4642: $hash{"version:$symb"}++;
4643: my $version=$hash{"version:$symb"};
4644: my $allkeys='';
4645: foreach my $key (keys(%$storehash)) {
4646: $allkeys.=$key.':';
1.591 albertel 4647: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 4648: }
4649: $hash{"$version:$symb:timestamp"}=$now;
4650: $allkeys.='timestamp';
4651: $hash{"$version:keys:$symb"}=$allkeys;
4652: if (untie(%hash)) {
4653: return 'ok';
4654: } else {
4655: return "error:$!";
4656: }
4657: } else {
4658: return "error:$!";
4659: }
4660: }
1.167 albertel 4661:
1.168 albertel 4662: # -----------------------------------------------------------------Temp Restore
1.167 albertel 4663:
1.168 albertel 4664: sub tmprestore {
4665: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 4666:
1.168 albertel 4667: if (!$symb) {
4668: $symb=&symbread();
1.620 albertel 4669: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4670: }
4671: $symb=escape($symb);
4672:
1.620 albertel 4673: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 4674:
1.620 albertel 4675: if (!$domain) { $domain=$env{'user.domain'}; }
4676: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4677: if ($domain eq 'public' && $stuname eq 'public') {
4678: $stuname=$ENV{'REMOTE_ADDR'};
4679: }
1.168 albertel 4680: my %returnhash;
4681: $namespace=~s/\//\_/g;
4682: $namespace=~s/\W//g;
4683: my %hash;
1.1117 foxr 4684: my $path=LONCAPA::tempdir();
1.168 albertel 4685: if (tie(%hash,'GDBM_File',
4686: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4687: &GDBM_READER(),0640)) {
1.168 albertel 4688: my $version=$hash{"version:$symb"};
4689: $returnhash{'version'}=$version;
4690: my $scope;
4691: for ($scope=1;$scope<=$version;$scope++) {
4692: my $vkeys=$hash{"$scope:keys:$symb"};
4693: my @keys=split(/:/,$vkeys);
4694: my $key;
4695: $returnhash{"$scope:keys"}=$vkeys;
4696: foreach $key (@keys) {
1.591 albertel 4697: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
4698: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 4699: }
4700: }
1.168 albertel 4701: if (!(untie(%hash))) {
4702: return "error:$!";
4703: }
4704: } else {
4705: return "error:$!";
4706: }
4707: return %returnhash;
1.167 albertel 4708: }
4709:
1.9 www 4710: # ----------------------------------------------------------------------- Store
4711:
4712: sub store {
1.124 www 4713: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4714: my $home='';
4715:
1.168 albertel 4716: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4717:
1.213 www 4718: $symb=&symbclean($symb);
1.122 albertel 4719: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4720:
1.620 albertel 4721: if (!$domain) { $domain=$env{'user.domain'}; }
4722: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4723:
4724: &devalidate($symb,$stuname,$domain);
1.109 www 4725:
4726: $symb=escape($symb);
1.187 www 4727: if (!$namespace) {
1.620 albertel 4728: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4729: return '';
4730: }
4731: }
1.620 albertel 4732: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4733:
4734: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4735: $$storehash{'host'}=$perlvar{'lonHostID'};
4736:
1.12 www 4737: my $namevalue='';
1.800 albertel 4738: foreach my $key (keys(%$storehash)) {
4739: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4740: }
1.12 www 4741: $namevalue=~s/\&$//;
1.187 www 4742: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 4743: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 4744: }
4745:
1.47 www 4746: # -------------------------------------------------------------- Critical Store
4747:
4748: sub cstore {
1.124 www 4749: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4750: my $home='';
4751:
1.168 albertel 4752: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4753:
1.213 www 4754: $symb=&symbclean($symb);
1.122 albertel 4755: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4756:
1.620 albertel 4757: if (!$domain) { $domain=$env{'user.domain'}; }
4758: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4759:
4760: &devalidate($symb,$stuname,$domain);
1.109 www 4761:
4762: $symb=escape($symb);
1.187 www 4763: if (!$namespace) {
1.620 albertel 4764: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4765: return '';
4766: }
4767: }
1.620 albertel 4768: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4769:
4770: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4771: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 4772:
1.47 www 4773: my $namevalue='';
1.800 albertel 4774: foreach my $key (keys(%$storehash)) {
4775: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4776: }
1.47 www 4777: $namevalue=~s/\&$//;
1.187 www 4778: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4779: return critical
4780: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 4781: }
4782:
1.9 www 4783: # --------------------------------------------------------------------- Restore
4784:
4785: sub restore {
1.124 www 4786: my ($symb,$namespace,$domain,$stuname) = @_;
4787: my $home='';
4788:
1.168 albertel 4789: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4790:
1.122 albertel 4791: if (!$symb) {
4792: unless ($symb=escape(&symbread())) { return ''; }
4793: } else {
1.213 www 4794: $symb=&escape(&symbclean($symb));
1.122 albertel 4795: }
1.188 www 4796: if (!$namespace) {
1.620 albertel 4797: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4798: return '';
4799: }
4800: }
1.620 albertel 4801: if (!$domain) { $domain=$env{'user.domain'}; }
4802: if (!$stuname) { $stuname=$env{'user.name'}; }
4803: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4804: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4805:
1.12 www 4806: my %returnhash=();
1.800 albertel 4807: foreach my $line (split(/\&/,$answer)) {
4808: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4809: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4810: }
1.75 www 4811: my $version;
4812: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4813: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4814: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4815: }
1.75 www 4816: }
1.13 www 4817: return %returnhash;
1.34 www 4818: }
4819:
4820: # ---------------------------------------------------------- Course Description
1.1118 foxr 4821: #
4822: #
1.34 www 4823:
4824: sub coursedescription {
1.731 albertel 4825: my ($courseid,$args)=@_;
1.34 www 4826: $courseid=~s/^\///;
1.49 www 4827: $courseid=~s/\_/\//g;
1.34 www 4828: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4829: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4830: my $normalid=$cdomain.'_'.$cnum;
4831: # need to always cache even if we get errors otherwise we keep
4832: # trying and trying and trying to get the course description.
4833: my %envhash=();
4834: my %returnhash=();
1.731 albertel 4835:
4836: my $expiretime=600;
4837: if ($env{'request.course.id'} eq $normalid) {
4838: $expiretime=120;
4839: }
4840:
4841: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4842: if (!$args->{'freshen_cache'}
4843: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4844: foreach my $key (keys(%env)) {
4845: next if ($key !~ /^\Q$prefix\E(.*)/);
4846: my ($setting) = $1;
4847: $returnhash{$setting} = $env{$key};
4848: }
4849: return %returnhash;
4850: }
4851:
1.1118 foxr 4852: # get the data again
4853:
1.731 albertel 4854: if (!$args->{'one_time'}) {
4855: $envhash{'course.'.$normalid.'.last_cache'}=time;
4856: }
1.811 albertel 4857:
1.34 www 4858: if ($chome ne 'no_host') {
1.302 albertel 4859: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 4860: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 4861: my $username = $env{'user.name'}; # Defult username
4862: if(defined $args->{'user'}) {
4863: $username = $args->{'user'};
4864: }
1.129 albertel 4865: $returnhash{'home'}= $chome;
4866: $returnhash{'domain'} = $cdomain;
4867: $returnhash{'num'} = $cnum;
1.741 raeburn 4868: if (!defined($returnhash{'type'})) {
4869: $returnhash{'type'} = 'Course';
4870: }
1.130 albertel 4871: while (my ($name,$value) = each %returnhash) {
1.53 www 4872: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 4873: }
1.270 www 4874: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 4875: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 4876: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 4877: $envhash{'course.'.$normalid.'.home'}=$chome;
4878: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
4879: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 4880: }
4881: }
1.731 albertel 4882: if (!$args->{'one_time'}) {
1.949 raeburn 4883: &appenv(\%envhash);
1.731 albertel 4884: }
1.302 albertel 4885: return %returnhash;
1.461 www 4886: }
4887:
1.1080 raeburn 4888: sub update_released_required {
4889: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
4890: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
4891: $cid = $env{'request.course.id'};
4892: $cdom = $env{'course.'.$cid.'.domain'};
4893: $cnum = $env{'course.'.$cid.'.num'};
4894: $chome = $env{'course.'.$cid.'.home'};
4895: }
4896: if ($needsrelease) {
4897: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
4898: my $needsupdate;
4899: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
4900: $needsupdate = 1;
4901: } else {
4902: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
4903: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
4904: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
4905: $needsupdate = 1;
4906: }
4907: }
4908: if ($needsupdate) {
4909: my %needshash = (
4910: 'internal.releaserequired' => $needsrelease,
4911: );
4912: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
4913: if ($putresult eq 'ok') {
4914: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
4915: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
4916: if (ref($crsinfo{$cid}) eq 'HASH') {
4917: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
4918: &courseidput($cdom,\%crsinfo,$chome,'notime');
4919: }
4920: }
4921: }
4922: }
4923: return;
4924: }
4925:
1.461 www 4926: # -------------------------------------------------See if a user is privileged
4927:
4928: sub privileged {
4929: my ($username,$domain)=@_;
1.1170 droeschl 4930:
4931: my %rolesdump = &dump("roles", $domain, $username) or return 0;
4932: my $now = time;
4933:
4934: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
4935: my ($trole, $tend, $tstart) = split(/_/, $role);
4936: if (($trole eq 'dc') || ($trole eq 'su')) {
4937: return 1 unless ($tend && $tend < $now)
4938: or ($tstart && $tstart > $now);
4939: }
1.461 www 4940: }
1.1170 droeschl 4941:
1.461 www 4942: return 0;
1.9 www 4943: }
1.1 albertel 4944:
1.103 harris41 4945: # -------------------------------------------------------- Get user privileges
1.11 www 4946:
4947: sub rolesinit {
1.1169 droeschl 4948: my ($domain, $username) = @_;
4949: my %userroles = ('user.login.time' => time);
4950: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
4951:
4952: # firstaccess and timerinterval are related to timed maps/resources.
4953: # also, blocking can be triggered by an activating timer
4954: # it's saved in the user's %env.
4955: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
4956: my %timerinterval = &dump('timerinterval', $domain, $username);
4957: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
4958: %timerintchk, %timerintenv);
4959:
1.1162 raeburn 4960: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 4961: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 4962: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
4963: }
1.1169 droeschl 4964:
1.1162 raeburn 4965: foreach my $key (keys(%timerinterval)) {
4966: my ($cid,$rest) = split(/\0/,$key);
4967: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
4968: }
1.1169 droeschl 4969:
1.11 www 4970: my %allroles=();
1.1162 raeburn 4971: my %allgroups=();
1.11 www 4972:
1.1169 droeschl 4973: for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
4974: my $role = $rolesdump{$area};
4975: $area =~ s/\_\w\w$//;
4976:
4977: my ($trole, $tend, $tstart, $group_privs);
4978:
4979: if ($role =~ /^cr/) {
4980: # Custom role, defined by a user
4981: # e.g., user.role.cr/msu/smith/mynewrole
4982: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
4983: $trole = $1;
4984: ($tend, $tstart) = split('_', $2);
4985: } else {
4986: $trole = $role;
4987: }
4988: } elsif ($role =~ m|^gr/|) {
4989: # Role of member in a group, defined within a course/community
4990: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
4991: ($trole, $tend, $tstart) = split(/_/, $role);
4992: next if $tstart eq '-1';
4993: ($trole, $group_privs) = split(/\//, $trole);
4994: $group_privs = &unescape($group_privs);
4995: } else {
4996: # Just a normal role, defined in roles.tab
4997: ($trole, $tend, $tstart) = split(/_/,$role);
4998: }
4999:
5000: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
5001: $username);
5002: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
5003:
5004: # role expired or not available yet?
5005: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
5006: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
5007:
5008: next if $area eq '' or $trole eq '';
5009:
5010: my $spec = "$trole.$area";
5011: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5012:
5013: if ($trole =~ /^cr\//) {
5014: # Custom role, defined by a user
5015: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5016: } elsif ($trole eq 'gr') {
5017: # Role of a member in a group, defined within a course/community
5018: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5019: next;
5020: } else {
5021: # Normal role, defined in roles.tab
5022: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5023: }
5024:
5025: my $cid = $tdomain.'_'.$trest;
5026: unless ($firstaccchk{$cid}) {
5027: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
5028: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
5029: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
5030: $coursetimerstarts{$cid}{$item};
5031: }
5032: }
5033: $firstaccchk{$cid} = 1;
5034: }
5035: unless ($timerintchk{$cid}) {
5036: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
5037: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
5038: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
5039: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 5040: }
1.12 www 5041: }
1.1169 droeschl 5042: $timerintchk{$cid} = 1;
1.191 harris41 5043: }
1.11 www 5044: }
1.1169 droeschl 5045:
5046: @userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
5047: \%allroles, \%allgroups);
5048: $env{'user.adv'} = $userroles{'user.adv'};
5049:
1.1162 raeburn 5050: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 5051: }
5052:
1.567 raeburn 5053: sub set_arearole {
5054: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
5055: # log the associated role with the area
5056: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 5057: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 5058: }
5059:
5060: sub custom_roleprivs {
5061: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
5062: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
5063: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 5064: if (&hostname($homsvr) ne '') {
1.567 raeburn 5065: my ($rdummy,$roledef)=
5066: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
5067: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
5068: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
5069: if (defined($syspriv)) {
1.1043 raeburn 5070: if ($trest =~ /^$match_community$/) {
5071: $syspriv =~ s/bre\&S//;
5072: }
1.567 raeburn 5073: $$allroles{'cm./'}.=':'.$syspriv;
5074: $$allroles{$spec.'./'}.=':'.$syspriv;
5075: }
5076: if ($tdomain ne '') {
5077: if (defined($dompriv)) {
5078: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
5079: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
5080: }
5081: if (($trest ne '') && (defined($coursepriv))) {
5082: $$allroles{'cm.'.$area}.=':'.$coursepriv;
5083: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
5084: }
5085: }
5086: }
5087: }
5088: }
5089:
1.678 raeburn 5090: sub group_roleprivs {
5091: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
5092: my $access = 1;
5093: my $now = time;
5094: if (($tend!=0) && ($tend<$now)) { $access = 0; }
5095: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
5096: if ($access) {
1.811 albertel 5097: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 5098: $$allgroups{$course}{$group} .=':'.$group_privs;
5099: }
5100: }
1.567 raeburn 5101:
5102: sub standard_roleprivs {
5103: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
5104: if (defined($pr{$trole.':s'})) {
5105: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
5106: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
5107: }
5108: if ($tdomain ne '') {
5109: if (defined($pr{$trole.':d'})) {
5110: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5111: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5112: }
5113: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
5114: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
5115: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
5116: }
5117: }
5118: }
5119:
5120: sub set_userprivs {
1.1064 raeburn 5121: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 5122: my $author=0;
5123: my $adv=0;
1.678 raeburn 5124: my %grouproles = ();
5125: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 5126: my @groupkeys;
1.1000 raeburn 5127: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 5128: push(@groupkeys,$role);
5129: }
5130: if (ref($groups_roles) eq 'HASH') {
5131: foreach my $key (keys(%{$groups_roles})) {
5132: unless (grep(/^\Q$key\E$/,@groupkeys)) {
5133: push(@groupkeys,$key);
5134: }
5135: }
5136: }
5137: if (@groupkeys > 0) {
5138: foreach my $role (@groupkeys) {
5139: my ($trole,$area,$sec,$extendedarea);
5140: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
5141: $trole = $1;
5142: $area = $2;
5143: $sec = $3;
5144: $extendedarea = $area.$sec;
5145: if (exists($$allgroups{$area})) {
5146: foreach my $group (keys(%{$$allgroups{$area}})) {
5147: my $spec = $trole.'.'.$extendedarea;
5148: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 5149: $$allgroups{$area}{$group};
1.1064 raeburn 5150: }
1.678 raeburn 5151: }
5152: }
5153: }
5154: }
5155: }
1.800 albertel 5156: foreach my $group (keys(%grouproles)) {
5157: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 5158: }
1.800 albertel 5159: foreach my $role (keys(%{$allroles})) {
5160: my %thesepriv;
1.941 raeburn 5161: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 5162: foreach my $item (split(/:/,$$allroles{$role})) {
5163: if ($item ne '') {
5164: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 5165: if ($restrictions eq '') {
5166: $thesepriv{$privilege}='F';
5167: } elsif ($thesepriv{$privilege} ne 'F') {
5168: $thesepriv{$privilege}.=$restrictions;
5169: }
5170: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
5171: }
5172: }
5173: my $thesestr='';
1.1104 raeburn 5174: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 5175: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
5176: }
5177: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 5178: }
5179: return ($author,$adv);
5180: }
5181:
1.994 raeburn 5182: sub role_status {
1.1104 raeburn 5183: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 5184: my @pwhere = ();
5185: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
5186: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
5187: unless (!defined($$role) || $$role eq '') {
5188: $$where=join('.',@pwhere);
5189: $$trolecode=$$role.'.'.$$where;
5190: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
5191: $$tstatus='is';
1.1104 raeburn 5192: if ($$tstart && $$tstart>$update) {
1.994 raeburn 5193: $$tstatus='future';
1.1034 raeburn 5194: if ($$tstart<$now) {
5195: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 5196: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 5197: my (%allroles,%allgroups,$group_privs,
5198: %groups_roles,@rolecodes);
1.1002 raeburn 5199: my %userroles = (
5200: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
5201: );
1.1064 raeburn 5202: @rolecodes = ('cm');
1.1002 raeburn 5203: my $spec=$$role.'.'.$$where;
5204: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
5205: if ($$role =~ /^cr\//) {
5206: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 5207: push(@rolecodes,'cr');
1.1002 raeburn 5208: } elsif ($$role eq 'gr') {
1.1064 raeburn 5209: push(@rolecodes,$$role);
1.1002 raeburn 5210: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
5211: $env{'user.name'});
1.1064 raeburn 5212: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 5213: (undef,my $group_privs) = split(/\//,$trole);
5214: $group_privs = &unescape($group_privs);
5215: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 5216: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 5217: &get_groups_roles($tdomain,$trest,
5218: \%course_roles,\@rolecodes,
5219: \%groups_roles);
1.1002 raeburn 5220: } else {
1.1064 raeburn 5221: push(@rolecodes,$$role);
1.1002 raeburn 5222: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
5223: }
1.1064 raeburn 5224: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
5225: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 5226: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
5227: }
5228: }
1.1034 raeburn 5229: $$tstatus = 'is';
1.1002 raeburn 5230: }
1.994 raeburn 5231: }
5232: if ($$tend) {
1.1104 raeburn 5233: if ($$tend<$update) {
1.994 raeburn 5234: $$tstatus='expired';
5235: } elsif ($$tend<$now) {
5236: $$tstatus='will_not';
5237: }
5238: }
5239: }
5240: }
5241: }
5242:
1.1104 raeburn 5243: sub get_groups_roles {
5244: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
5245: return unless((ref($cdom_courseroles) eq 'HASH') &&
5246: (ref($rolecodes) eq 'ARRAY') &&
5247: (ref($groups_roles) eq 'HASH'));
5248: if (keys(%{$cdom_courseroles}) > 0) {
5249: my ($cnum) = ($rest =~ /^($match_courseid)/);
5250: if ($cdom ne '' && $cnum ne '') {
5251: foreach my $key (keys(%{$cdom_courseroles})) {
5252: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
5253: my $crsrole = $1;
5254: my $crssec = $2;
5255: if ($crsrole =~ /^cr/) {
5256: unless (grep(/^cr$/,@{$rolecodes})) {
5257: push(@{$rolecodes},'cr');
5258: }
5259: } else {
5260: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
5261: push(@{$rolecodes},$crsrole);
5262: }
5263: }
5264: my $rolekey = "$crsrole./$cdom/$cnum";
5265: if ($crssec ne '') {
5266: $rolekey .= "/$crssec";
5267: }
5268: $rolekey .= './';
5269: $groups_roles->{$rolekey} = $rolecodes;
5270: }
5271: }
5272: }
5273: }
5274: return;
5275: }
5276:
5277: sub delete_env_groupprivs {
5278: my ($where,$courseroles,$possroles) = @_;
5279: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
5280: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
5281: unless (ref($courseroles->{$udom}) eq 'HASH') {
5282: %{$courseroles->{$udom}} =
5283: &get_my_roles('','','userroles',['active'],
5284: $possroles,[$udom],1);
5285: }
5286: if (ref($courseroles->{$udom}) eq 'HASH') {
5287: foreach my $item (keys(%{$courseroles->{$udom}})) {
5288: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
5289: my $area = '/'.$cdom.'/'.$cnum;
5290: my $privkey = "user.priv.$crsrole.$area";
5291: if ($crssec ne '') {
5292: $privkey .= '/'.$crssec;
5293: }
5294: $privkey .= ".$area/$group";
5295: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
5296: }
5297: }
5298: return;
5299: }
5300:
1.994 raeburn 5301: sub check_adhoc_privs {
1.1104 raeburn 5302: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 5303: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1185 raeburn 5304: my $setprivs;
1.994 raeburn 5305: if ($env{$cckey}) {
5306: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 5307: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 5308: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 5309: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5310: $setprivs = 1;
1.994 raeburn 5311: }
5312: } else {
1.1088 raeburn 5313: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5314: $setprivs = 1;
1.994 raeburn 5315: }
1.1185 raeburn 5316: return $setprivs;
1.994 raeburn 5317: }
5318:
5319: sub set_adhoc_privileges {
5320: # role can be cc or ca
1.1088 raeburn 5321: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 5322: my $area = '/'.$dcdom.'/'.$pickedcourse;
5323: my $spec = $role.'.'.$area;
5324: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
5325: $env{'user.name'});
5326: my %ccrole = ();
5327: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
5328: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
5329: &appenv(\%userroles,[$role,'cm']);
5330: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 5331: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
5332: &appenv( {'request.role' => $spec,
5333: 'request.role.domain' => $dcdom,
5334: 'request.course.sec' => ''
5335: }
5336: );
5337: my $tadv=0;
5338: if (&allowed('adv') eq 'F') { $tadv=1; }
5339: &appenv({'request.role.adv' => $tadv});
5340: }
1.994 raeburn 5341: }
5342:
1.12 www 5343: # --------------------------------------------------------------- get interface
5344:
5345: sub get {
1.131 albertel 5346: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5347: my $items='';
1.800 albertel 5348: foreach my $item (@$storearr) {
5349: $items.=&escape($item).'&';
1.191 harris41 5350: }
1.12 www 5351: $items=~s/\&$//;
1.620 albertel 5352: if (!$udomain) { $udomain=$env{'user.domain'}; }
5353: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 5354: my $uhome=&homeserver($uname,$udomain);
5355:
1.133 albertel 5356: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5357: my @pairs=split(/\&/,$rep);
1.273 albertel 5358: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
5359: return @pairs;
5360: }
1.15 www 5361: my %returnhash=();
1.42 www 5362: my $i=0;
1.800 albertel 5363: foreach my $item (@$storearr) {
5364: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5365: $i++;
1.191 harris41 5366: }
1.15 www 5367: return %returnhash;
1.27 www 5368: }
5369:
5370: # --------------------------------------------------------------- del interface
5371:
5372: sub del {
1.133 albertel 5373: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 5374: my $items='';
1.800 albertel 5375: foreach my $item (@$storearr) {
5376: $items.=&escape($item).'&';
1.191 harris41 5377: }
1.984 neumanie 5378:
1.27 www 5379: $items=~s/\&$//;
1.620 albertel 5380: if (!$udomain) { $udomain=$env{'user.domain'}; }
5381: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5382: my $uhome=&homeserver($uname,$udomain);
5383: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5384: }
5385:
5386: # -------------------------------------------------------------- dump interface
5387:
1.1180 droeschl 5388: sub unserialize {
5389: my ($rep, $escapedkeys) = @_;
5390:
5391: return {} if $rep =~ /^error/;
5392:
5393: my %returnhash=();
5394: foreach my $item (split /\&/, $rep) {
5395: my ($key, $value) = split(/=/, $item, 2);
5396: $key = unescape($key) unless $escapedkeys;
5397: next if $key =~ /^error: 2 /;
5398: $returnhash{$key} = Apache::lonnet::thaw_unescape($value);
5399: }
5400: #return %returnhash;
5401: return \%returnhash;
5402: }
5403:
5404: # see Lond::dump_with_regexp
5405: # if $escapedkeys hash keys won't get unescaped.
1.15 www 5406: sub dump {
1.1180 droeschl 5407: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 5408: if (!$udomain) { $udomain=$env{'user.domain'}; }
5409: if (!$uname) { $uname=$env{'user.name'}; }
5410: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 5411:
1.1180 droeschl 5412: my $reply;
5413: if (grep { $_ eq $uhome } current_machine_ids()) {
5414: # user is hosted on this machine
5415: $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
5416: $uname, $namespace, $regexp, $range)), $loncaparevs{$uhome});
5417: return %{unserialize($reply, $escapedkeys)};
5418: }
1.755 albertel 5419: if ($regexp) {
5420: $regexp=&escape($regexp);
5421: } else {
5422: $regexp='.';
5423: }
1.1166 raeburn 5424: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 5425: my @pairs=split(/\&/,$rep);
5426: my %returnhash=();
1.1098 foxr 5427: if (!($rep =~ /^error/ )) {
5428: foreach my $item (@pairs) {
5429: my ($key,$value)=split(/=/,$item,2);
1.1180 droeschl 5430: $key = unescape($key) unless $escapedkeys;
5431: #$key = &unescape($key);
1.1098 foxr 5432: next if ($key =~ /^error: 2 /);
5433: $returnhash{$key}=&thaw_unescape($value);
5434: }
1.755 albertel 5435: }
5436: return %returnhash;
1.407 www 5437: }
5438:
1.1098 foxr 5439:
1.717 albertel 5440: # --------------------------------------------------------- dumpstore interface
5441:
5442: sub dumpstore {
5443: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1180 droeschl 5444: # same as dump but keys must be escaped. They may contain colon separated
5445: # lists of values that may themself contain colons (e.g. symbs).
5446: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 5447: }
5448:
1.407 www 5449: # -------------------------------------------------------------- keys interface
5450:
5451: sub getkeys {
5452: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 5453: if (!$udomain) { $udomain=$env{'user.domain'}; }
5454: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 5455: my $uhome=&homeserver($uname,$udomain);
5456: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
5457: my @keyarray=();
1.800 albertel 5458: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 5459: next if ($key =~ /^error: 2 /);
1.800 albertel 5460: push(@keyarray,&unescape($key));
1.407 www 5461: }
5462: return @keyarray;
1.318 matthew 5463: }
5464:
1.319 matthew 5465: # --------------------------------------------------------------- currentdump
5466: sub currentdump {
1.328 matthew 5467: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 5468: $courseid = $env{'request.course.id'} if (! defined($courseid));
5469: $sdom = $env{'user.domain'} if (! defined($sdom));
5470: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 5471: my $uhome = &homeserver($sname,$sdom);
1.1180 droeschl 5472: my $rep;
5473:
5474: if (grep { $_ eq $uhome } current_machine_ids()) {
5475: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
5476: $courseid)));
5477: } else {
5478: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
5479: }
5480:
1.318 matthew 5481: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 5482: #
1.318 matthew 5483: my %returnhash=();
1.319 matthew 5484: #
5485: if ($rep eq "unknown_cmd") {
5486: # an old lond will not know currentdump
5487: # Do a dump and make it look like a currentdump
1.822 albertel 5488: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 5489: return if ($tmp[0] =~ /^(error:|no_such_host)/);
5490: my %hash = @tmp;
5491: @tmp=();
1.424 matthew 5492: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 5493: } else {
5494: my @pairs=split(/\&/,$rep);
1.800 albertel 5495: foreach my $pair (@pairs) {
5496: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 5497: my ($symb,$param) = split(/:/,$key);
5498: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 5499: &thaw_unescape($value);
1.319 matthew 5500: }
1.191 harris41 5501: }
1.12 www 5502: return %returnhash;
1.424 matthew 5503: }
5504:
5505: sub convert_dump_to_currentdump{
5506: my %hash = %{shift()};
5507: my %returnhash;
5508: # Code ripped from lond, essentially. The only difference
5509: # here is the unescaping done by lonnet::dump(). Conceivably
5510: # we might run in to problems with parameter names =~ /^v\./
5511: while (my ($key,$value) = each(%hash)) {
5512: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 5513: $symb = &unescape($symb);
5514: $param = &unescape($param);
1.424 matthew 5515: next if ($v eq 'version' || $symb eq 'keys');
5516: next if (exists($returnhash{$symb}) &&
5517: exists($returnhash{$symb}->{$param}) &&
5518: $returnhash{$symb}->{'v.'.$param} > $v);
5519: $returnhash{$symb}->{$param}=$value;
5520: $returnhash{$symb}->{'v.'.$param}=$v;
5521: }
5522: #
5523: # Remove all of the keys in the hashes which keep track of
5524: # the version of the parameter.
5525: while (my ($symb,$param_hash) = each(%returnhash)) {
5526: # use a foreach because we are going to delete from the hash.
5527: foreach my $key (keys(%$param_hash)) {
5528: delete($param_hash->{$key}) if ($key =~ /^v\./);
5529: }
5530: }
5531: return \%returnhash;
1.12 www 5532: }
5533:
1.627 albertel 5534: # ------------------------------------------------------ critical inc interface
5535:
5536: sub cinc {
5537: return &inc(@_,'critical');
5538: }
5539:
1.449 matthew 5540: # --------------------------------------------------------------- inc interface
5541:
5542: sub inc {
1.627 albertel 5543: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 5544: if (!$udomain) { $udomain=$env{'user.domain'}; }
5545: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 5546: my $uhome=&homeserver($uname,$udomain);
5547: my $items='';
5548: if (! ref($store)) {
5549: # got a single value, so use that instead
5550: $items = &escape($store).'=&';
5551: } elsif (ref($store) eq 'SCALAR') {
5552: $items = &escape($$store).'=&';
5553: } elsif (ref($store) eq 'ARRAY') {
5554: $items = join('=&',map {&escape($_);} @{$store});
5555: } elsif (ref($store) eq 'HASH') {
5556: while (my($key,$value) = each(%{$store})) {
5557: $items.= &escape($key).'='.&escape($value).'&';
5558: }
5559: }
5560: $items=~s/\&$//;
1.627 albertel 5561: if ($critical) {
5562: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
5563: } else {
5564: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
5565: }
1.449 matthew 5566: }
5567:
1.12 www 5568: # --------------------------------------------------------------- put interface
5569:
5570: sub put {
1.134 albertel 5571: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5572: if (!$udomain) { $udomain=$env{'user.domain'}; }
5573: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5574: my $uhome=&homeserver($uname,$udomain);
1.12 www 5575: my $items='';
1.800 albertel 5576: foreach my $item (keys(%$storehash)) {
5577: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5578: }
1.12 www 5579: $items=~s/\&$//;
1.134 albertel 5580: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 5581: }
5582:
1.631 albertel 5583: # ------------------------------------------------------------ newput interface
5584:
5585: sub newput {
5586: my ($namespace,$storehash,$udomain,$uname)=@_;
5587: if (!$udomain) { $udomain=$env{'user.domain'}; }
5588: if (!$uname) { $uname=$env{'user.name'}; }
5589: my $uhome=&homeserver($uname,$udomain);
5590: my $items='';
5591: foreach my $key (keys(%$storehash)) {
5592: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
5593: }
5594: $items=~s/\&$//;
5595: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
5596: }
5597:
5598: # --------------------------------------------------------- putstore interface
5599:
1.524 raeburn 5600: sub putstore {
1.715 albertel 5601: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 5602: if (!$udomain) { $udomain=$env{'user.domain'}; }
5603: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 5604: my $uhome=&homeserver($uname,$udomain);
5605: my $items='';
1.715 albertel 5606: foreach my $key (keys(%$storehash)) {
5607: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 5608: }
1.715 albertel 5609: $items=~s/\&$//;
1.716 albertel 5610: my $esc_symb=&escape($symb);
5611: my $esc_v=&escape($version);
1.715 albertel 5612: my $reply =
1.716 albertel 5613: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 5614: $uhome);
5615: if ($reply eq 'unknown_cmd') {
1.716 albertel 5616: # gfall back to way things use to be done
1.715 albertel 5617: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
5618: $uname);
1.524 raeburn 5619: }
1.715 albertel 5620: return $reply;
5621: }
5622:
5623: sub old_putstore {
1.716 albertel 5624: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
5625: if (!$udomain) { $udomain=$env{'user.domain'}; }
5626: if (!$uname) { $uname=$env{'user.name'}; }
5627: my $uhome=&homeserver($uname,$udomain);
5628: my %newstorehash;
1.800 albertel 5629: foreach my $item (keys(%$storehash)) {
5630: my $key = $version.':'.&escape($symb).':'.$item;
5631: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 5632: }
5633: my $items='';
5634: my %allitems = ();
1.800 albertel 5635: foreach my $item (keys(%newstorehash)) {
5636: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 5637: my $key = $1.':keys:'.$2;
5638: $allitems{$key} .= $3.':';
5639: }
1.800 albertel 5640: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 5641: }
1.800 albertel 5642: foreach my $item (keys(%allitems)) {
5643: $allitems{$item} =~ s/\:$//;
5644: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 5645: }
5646: $items=~s/\&$//;
5647: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 5648: }
5649:
1.47 www 5650: # ------------------------------------------------------ critical put interface
5651:
5652: sub cput {
1.134 albertel 5653: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5654: if (!$udomain) { $udomain=$env{'user.domain'}; }
5655: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5656: my $uhome=&homeserver($uname,$udomain);
1.47 www 5657: my $items='';
1.800 albertel 5658: foreach my $item (keys(%$storehash)) {
5659: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5660: }
1.47 www 5661: $items=~s/\&$//;
1.134 albertel 5662: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5663: }
5664:
5665: # -------------------------------------------------------------- eget interface
5666:
5667: sub eget {
1.133 albertel 5668: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5669: my $items='';
1.800 albertel 5670: foreach my $item (@$storearr) {
5671: $items.=&escape($item).'&';
1.191 harris41 5672: }
1.12 www 5673: $items=~s/\&$//;
1.620 albertel 5674: if (!$udomain) { $udomain=$env{'user.domain'}; }
5675: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5676: my $uhome=&homeserver($uname,$udomain);
5677: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5678: my @pairs=split(/\&/,$rep);
5679: my %returnhash=();
1.42 www 5680: my $i=0;
1.800 albertel 5681: foreach my $item (@$storearr) {
5682: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5683: $i++;
1.191 harris41 5684: }
1.12 www 5685: return %returnhash;
5686: }
5687:
1.667 albertel 5688: # ------------------------------------------------------------ tmpput interface
5689: sub tmpput {
1.802 raeburn 5690: my ($storehash,$server,$context)=@_;
1.667 albertel 5691: my $items='';
1.800 albertel 5692: foreach my $item (keys(%$storehash)) {
5693: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 5694: }
5695: $items=~s/\&$//;
1.802 raeburn 5696: if (defined($context)) {
5697: $items .= ':'.&escape($context);
5698: }
1.667 albertel 5699: return &reply("tmpput:$items",$server);
5700: }
5701:
5702: # ------------------------------------------------------------ tmpget interface
5703: sub tmpget {
1.688 albertel 5704: my ($token,$server)=@_;
5705: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5706: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 5707: my %returnhash;
5708: foreach my $item (split(/\&/,$rep)) {
5709: my ($key,$value)=split(/=/,$item);
1.951 raeburn 5710: next if ($key =~ /^error: 2 /);
1.667 albertel 5711: $returnhash{&unescape($key)}=&thaw_unescape($value);
5712: }
5713: return %returnhash;
5714: }
5715:
1.1113 raeburn 5716: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 5717: sub tmpdel {
5718: my ($token,$server)=@_;
5719: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5720: return &reply("tmpdel:$token",$server);
5721: }
5722:
1.1198 raeburn 5723: # ------------------------------------------------------------ get_timebased_id
5724:
5725: sub get_timebased_id {
5726: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
5727: $maxtries) = @_;
5728: my ($newid,$error,$dellock);
5729: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
5730: return ('','ok','invalid call to get suffix');
5731: }
5732:
5733: # set defaults for any optional args for which values were not supplied
5734: if ($who eq '') {
5735: $who = $env{'user.name'}.':'.$env{'user.domain'};
5736: }
5737: if (!$locktries) {
5738: $locktries = 3;
5739: }
5740: if (!$maxtries) {
5741: $maxtries = 10;
5742: }
5743:
5744: if (($cdom eq '') || ($cnum eq '')) {
5745: if ($env{'request.course.id'}) {
5746: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5747: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5748: }
5749: if (($cdom eq '') || ($cnum eq '')) {
5750: return ('','ok','call to get suffix not in course context');
5751: }
5752: }
5753:
5754: # construct locking item
5755: my $lockhash = {
5756: $prefix."\0".'locked_'.$keyid => $who,
5757: };
5758: my $tries = 0;
5759:
5760: # attempt to get lock on nohist_$namespace file
5761: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5762: while (($gotlock ne 'ok') && $tries <$locktries) {
5763: $tries ++;
5764: sleep 1;
5765: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5766: }
5767:
5768: # attempt to get unique identifier, based on current timestamp
5769: if ($gotlock eq 'ok') {
5770: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
5771: my $id = time;
5772: $newid = $id;
5773: my $idtries = 0;
5774: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
5775: if ($idtype eq 'concat') {
5776: $newid = $id.$idtries;
5777: } else {
5778: $newid ++;
5779: }
5780: $idtries ++;
5781: }
5782: if (!exists($inuse{$prefix."\0".$newid})) {
5783: my %new_item = (
5784: $prefix."\0".$newid => $who,
5785: );
5786: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
5787: $cdom,$cnum);
5788: if ($putresult ne 'ok') {
5789: undef($newid);
5790: $error = 'error saving new item: '.$putresult;
5791: }
5792: } else {
5793: $error = ('error: no unique suffix available for the new item ');
5794: }
5795: # remove lock
5796: my @del_lock = ($prefix."\0".'locked_'.$keyid);
5797: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
5798: } else {
5799: $error = "error: could not obtain lockfile\n";
5800: $dellock = 'ok';
5801: }
5802: return ($newid,$dellock,$error);
5803: }
5804:
1.765 albertel 5805: # -------------------------------------------------- portfolio access checking
5806:
5807: sub portfolio_access {
1.766 albertel 5808: my ($requrl) = @_;
1.765 albertel 5809: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
5810: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 5811: if ($result) {
5812: my %setters;
5813: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5814: my ($startblock,$endblock) =
5815: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
5816: if ($startblock && $endblock) {
5817: return 'B';
5818: }
5819: } else {
5820: my ($startblock,$endblock) =
5821: &Apache::loncommon::blockcheck(\%setters,'port');
5822: if ($startblock && $endblock) {
5823: return 'B';
5824: }
5825: }
5826: }
1.765 albertel 5827: if ($result eq 'ok') {
1.766 albertel 5828: return 'F';
1.765 albertel 5829: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 5830: return 'A';
1.765 albertel 5831: }
1.766 albertel 5832: return '';
1.765 albertel 5833: }
5834:
5835: sub get_portfolio_access {
1.767 albertel 5836: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
5837:
5838: if (!ref($access_hash)) {
5839: my $current_perms = &get_portfile_permissions($udom,$unum);
5840: my %access_controls = &get_access_controls($current_perms,$group,
5841: $file_name);
5842: $access_hash = $access_controls{$file_name};
5843: }
5844:
1.765 albertel 5845: my ($public,$guest,@domains,@users,@courses,@groups);
5846: my $now = time;
5847: if (ref($access_hash) eq 'HASH') {
5848: foreach my $key (keys(%{$access_hash})) {
5849: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5850: if ($start > $now) {
5851: next;
5852: }
5853: if ($end && $end<$now) {
5854: next;
5855: }
5856: if ($scope eq 'public') {
5857: $public = $key;
5858: last;
5859: } elsif ($scope eq 'guest') {
5860: $guest = $key;
5861: } elsif ($scope eq 'domains') {
5862: push(@domains,$key);
5863: } elsif ($scope eq 'users') {
5864: push(@users,$key);
5865: } elsif ($scope eq 'course') {
5866: push(@courses,$key);
5867: } elsif ($scope eq 'group') {
5868: push(@groups,$key);
5869: }
5870: }
5871: if ($public) {
5872: return 'ok';
5873: }
5874: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5875: if ($guest) {
5876: return $guest;
5877: }
5878: } else {
5879: if (@domains > 0) {
5880: foreach my $domkey (@domains) {
5881: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
5882: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
5883: return 'ok';
5884: }
5885: }
5886: }
5887: }
5888: if (@users > 0) {
5889: foreach my $userkey (@users) {
1.865 raeburn 5890: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
5891: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
5892: if (ref($item) eq 'HASH') {
5893: if (($item->{'uname'} eq $env{'user.name'}) &&
5894: ($item->{'udom'} eq $env{'user.domain'})) {
5895: return 'ok';
5896: }
5897: }
5898: }
5899: }
1.765 albertel 5900: }
5901: }
5902: my %roleshash;
5903: my @courses_and_groups = @courses;
5904: push(@courses_and_groups,@groups);
5905: if (@courses_and_groups > 0) {
5906: my (%allgroups,%allroles);
5907: my ($start,$end,$role,$sec,$group);
5908: foreach my $envkey (%env) {
1.1060 raeburn 5909: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5910: my $cid = $2.'_'.$3;
5911: if ($1 eq 'gr') {
5912: $group = $4;
5913: $allgroups{$cid}{$group} = $env{$envkey};
5914: } else {
5915: if ($4 eq '') {
5916: $sec = 'none';
5917: } else {
5918: $sec = $4;
5919: }
5920: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5921: }
1.811 albertel 5922: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5923: my $cid = $2.'_'.$3;
5924: if ($4 eq '') {
5925: $sec = 'none';
5926: } else {
5927: $sec = $4;
5928: }
5929: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5930: }
5931: }
5932: if (keys(%allroles) == 0) {
5933: return;
5934: }
5935: foreach my $key (@courses_and_groups) {
5936: my %content = %{$$access_hash{$key}};
5937: my $cnum = $content{'number'};
5938: my $cdom = $content{'domain'};
5939: my $cid = $cdom.'_'.$cnum;
5940: if (!exists($allroles{$cid})) {
5941: next;
5942: }
5943: foreach my $role_id (keys(%{$content{'roles'}})) {
5944: my @sections = @{$content{'roles'}{$role_id}{'section'}};
5945: my @groups = @{$content{'roles'}{$role_id}{'group'}};
5946: my @status = @{$content{'roles'}{$role_id}{'access'}};
5947: my @roles = @{$content{'roles'}{$role_id}{'role'}};
5948: foreach my $role (keys(%{$allroles{$cid}})) {
5949: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
5950: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
5951: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
5952: if (grep/^all$/,@sections) {
5953: return 'ok';
5954: } else {
5955: if (grep/^$sec$/,@sections) {
5956: return 'ok';
5957: }
5958: }
5959: }
5960: }
5961: if (keys(%{$allgroups{$cid}}) == 0) {
5962: if (grep/^none$/,@groups) {
5963: return 'ok';
5964: }
5965: } else {
5966: if (grep/^all$/,@groups) {
5967: return 'ok';
5968: }
5969: foreach my $group (keys(%{$allgroups{$cid}})) {
5970: if (grep/^$group$/,@groups) {
5971: return 'ok';
5972: }
5973: }
5974: }
5975: }
5976: }
5977: }
5978: }
5979: }
5980: if ($guest) {
5981: return $guest;
5982: }
5983: }
5984: }
5985: return;
5986: }
5987:
5988: sub course_group_datechecker {
5989: my ($dates,$now,$status) = @_;
5990: my ($start,$end) = split(/\./,$dates);
5991: if (!$start && !$end) {
5992: return 'ok';
5993: }
5994: if (grep/^active$/,@{$status}) {
5995: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
5996: return 'ok';
5997: }
5998: }
5999: if (grep/^previous$/,@{$status}) {
6000: if ($end > $now ) {
6001: return 'ok';
6002: }
6003: }
6004: if (grep/^future$/,@{$status}) {
6005: if ($start > $now) {
6006: return 'ok';
6007: }
6008: }
6009: return;
6010: }
6011:
6012: sub parse_portfolio_url {
6013: my ($url) = @_;
6014:
6015: my ($type,$udom,$unum,$group,$file_name);
6016:
1.823 albertel 6017: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 6018: $type = 1;
6019: $udom = $1;
6020: $unum = $2;
6021: $file_name = $3;
1.823 albertel 6022: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 6023: $type = 2;
6024: $udom = $1;
6025: $unum = $2;
6026: $group = $3;
6027: $file_name = $3.'/'.$4;
6028: }
6029: if (wantarray) {
6030: return ($type,$udom,$unum,$file_name,$group);
6031: }
6032: return $type;
6033: }
6034:
6035: sub is_portfolio_url {
6036: my ($url) = @_;
6037: return scalar(&parse_portfolio_url($url));
6038: }
6039:
1.798 raeburn 6040: sub is_portfolio_file {
6041: my ($file) = @_;
1.820 raeburn 6042: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 6043: return 1;
6044: }
6045: return;
6046: }
6047:
1.976 raeburn 6048: sub usertools_access {
1.1084 raeburn 6049: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 6050: my ($access,%tools);
6051: if ($context eq '') {
6052: $context = 'tools';
6053: }
6054: if ($context eq 'requestcourses') {
6055: %tools = (
6056: official => 1,
6057: unofficial => 1,
1.1006 raeburn 6058: community => 1,
1.985 raeburn 6059: );
1.1183 raeburn 6060: } elsif ($context eq 'requestauthor') {
6061: %tools = (
6062: requestauthor => 1,
6063: );
1.985 raeburn 6064: } else {
6065: %tools = (
6066: aboutme => 1,
6067: blog => 1,
1.1177 raeburn 6068: webdav => 1,
1.985 raeburn 6069: portfolio => 1,
6070: );
6071: }
1.976 raeburn 6072: return if (!defined($tools{$tool}));
6073:
6074: if ((!defined($udom)) || (!defined($uname))) {
6075: $udom = $env{'user.domain'};
6076: $uname = $env{'user.name'};
6077: }
6078:
1.978 raeburn 6079: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6080: if ($action ne 'reload') {
1.985 raeburn 6081: if ($context eq 'requestcourses') {
6082: return $env{'environment.canrequest.'.$tool};
1.1183 raeburn 6083: } elsif ($context eq 'requestauthor') {
6084: return $env{'environment.canrequest.author'};
1.985 raeburn 6085: } else {
6086: return $env{'environment.availabletools.'.$tool};
6087: }
6088: }
1.976 raeburn 6089: }
6090:
1.1183 raeburn 6091: my ($toolstatus,$inststatus,$envkey);
6092: if ($context eq 'requestauthor') {
6093: $envkey = $context;
6094: } else {
6095: $envkey = $context.'.'.$tool;
6096: }
1.976 raeburn 6097:
1.985 raeburn 6098: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
6099: ($action ne 'reload')) {
1.1183 raeburn 6100: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 6101: $inststatus = $env{'environment.inststatus'};
6102: } else {
1.1084 raeburn 6103: if (ref($userenvref) eq 'HASH') {
1.1183 raeburn 6104: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 6105: $inststatus = $userenvref->{'inststatus'};
6106: } else {
1.1183 raeburn 6107: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
6108: $toolstatus = $userenv{$envkey};
1.1084 raeburn 6109: $inststatus = $userenv{'inststatus'};
6110: }
1.976 raeburn 6111: }
6112:
6113: if ($toolstatus ne '') {
6114: if ($toolstatus) {
6115: $access = 1;
6116: } else {
6117: $access = 0;
6118: }
6119: return $access;
6120: }
6121:
1.1084 raeburn 6122: my ($is_adv,%domdef);
6123: if (ref($is_advref) eq 'HASH') {
6124: $is_adv = $is_advref->{'is_adv'};
6125: } else {
6126: $is_adv = &is_advanced_user($udom,$uname);
6127: }
6128: if (ref($domdefref) eq 'HASH') {
6129: %domdef = %{$domdefref};
6130: } else {
6131: %domdef = &get_domain_defaults($udom);
6132: }
1.976 raeburn 6133: if (ref($domdef{$tool}) eq 'HASH') {
6134: if ($is_adv) {
6135: if ($domdef{$tool}{'_LC_adv'} ne '') {
6136: if ($domdef{$tool}{'_LC_adv'}) {
6137: $access = 1;
6138: } else {
6139: $access = 0;
6140: }
6141: return $access;
6142: }
6143: }
6144: if ($inststatus ne '') {
6145: my ($hasaccess,$hasnoaccess);
6146: foreach my $affiliation (split(/:/,$inststatus)) {
6147: if ($domdef{$tool}{$affiliation} ne '') {
6148: if ($domdef{$tool}{$affiliation}) {
6149: $hasaccess = 1;
6150: } else {
6151: $hasnoaccess = 1;
6152: }
6153: }
6154: }
6155: if ($hasaccess || $hasnoaccess) {
6156: if ($hasaccess) {
6157: $access = 1;
6158: } elsif ($hasnoaccess) {
6159: $access = 0;
6160: }
6161: return $access;
6162: }
6163: } else {
6164: if ($domdef{$tool}{'default'} ne '') {
6165: if ($domdef{$tool}{'default'}) {
6166: $access = 1;
6167: } elsif ($domdef{$tool}{'default'} == 0) {
6168: $access = 0;
6169: }
6170: return $access;
6171: }
6172: }
6173: } else {
1.1177 raeburn 6174: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 6175: $access = 1;
6176: } else {
6177: $access = 0;
6178: }
1.976 raeburn 6179: return $access;
6180: }
6181: }
6182:
1.1050 raeburn 6183: sub is_course_owner {
6184: my ($cdom,$cnum,$udom,$uname) = @_;
6185: if (($udom eq '') || ($uname eq '')) {
6186: $udom = $env{'user.domain'};
6187: $uname = $env{'user.name'};
6188: }
6189: unless (($udom eq '') || ($uname eq '')) {
6190: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
6191: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
6192: return 1;
6193: } else {
6194: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
6195: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
6196: return 1;
6197: }
6198: }
6199: }
6200: }
6201: return;
6202: }
6203:
1.976 raeburn 6204: sub is_advanced_user {
6205: my ($udom,$uname) = @_;
1.1085 raeburn 6206: if ($udom ne '' && $uname ne '') {
6207: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 6208: if (wantarray) {
6209: return ($env{'user.adv'},$env{'user.author'});
6210: } else {
6211: return $env{'user.adv'};
6212: }
1.1085 raeburn 6213: }
6214: }
1.976 raeburn 6215: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
6216: my %allroles;
1.1128 raeburn 6217: my ($is_adv,$is_author);
1.976 raeburn 6218: foreach my $role (keys(%roleshash)) {
6219: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
6220: my $area = '/'.$tdomain.'/'.$trest;
6221: if ($sec ne '') {
6222: $area .= '/'.$sec;
6223: }
6224: if (($area ne '') && ($trole ne '')) {
6225: my $spec=$trole.'.'.$area;
6226: if ($trole =~ /^cr\//) {
6227: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
6228: } elsif ($trole ne 'gr') {
6229: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
6230: }
1.1128 raeburn 6231: if ($trole eq 'au') {
6232: $is_author = 1;
6233: }
1.976 raeburn 6234: }
6235: }
6236: foreach my $role (keys(%allroles)) {
6237: last if ($is_adv);
6238: foreach my $item (split(/:/,$allroles{$role})) {
6239: if ($item ne '') {
6240: my ($privilege,$restrictions)=split(/&/,$item);
6241: if ($privilege eq 'adv') {
6242: $is_adv = 1;
6243: last;
6244: }
6245: }
6246: }
6247: }
1.1128 raeburn 6248: if (wantarray) {
6249: return ($is_adv,$is_author);
6250: }
1.976 raeburn 6251: return $is_adv;
6252: }
1.798 raeburn 6253:
1.1035 raeburn 6254: sub check_can_request {
1.1036 raeburn 6255: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 6256: my $canreq = 0;
6257: my ($types,$typename) = &Apache::loncommon::course_types();
6258: my @options = ('approval','validate','autolimit');
6259: my $optregex = join('|',@options);
6260: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
6261: foreach my $type (@{$types}) {
6262: if (&usertools_access($env{'user.name'},
6263: $env{'user.domain'},
6264: $type,undef,'requestcourses')) {
6265: $canreq ++;
1.1036 raeburn 6266: if (ref($request_domains) eq 'HASH') {
6267: push(@{$request_domains->{$type}},$env{'user.domain'});
6268: }
1.1035 raeburn 6269: if ($dom eq $env{'user.domain'}) {
6270: $can_request->{$type} = 1;
6271: }
6272: }
6273: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
6274: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
6275: if (@curr > 0) {
1.1036 raeburn 6276: foreach my $item (@curr) {
6277: if (ref($request_domains) eq 'HASH') {
6278: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
6279: if ($otherdom ne '') {
6280: if (ref($request_domains->{$type}) eq 'ARRAY') {
6281: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
6282: push(@{$request_domains->{$type}},$otherdom);
6283: }
6284: } else {
6285: push(@{$request_domains->{$type}},$otherdom);
6286: }
6287: }
6288: }
6289: }
6290: unless($dom eq $env{'user.domain'}) {
6291: $canreq ++;
1.1035 raeburn 6292: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
6293: $can_request->{$type} = 1;
6294: }
6295: }
6296: }
6297: }
6298: }
6299: }
6300: return $canreq;
6301: }
6302:
1.341 www 6303: # ---------------------------------------------- Custom access rule evaluation
6304:
6305: sub customaccess {
6306: my ($priv,$uri)=@_;
1.807 albertel 6307: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 6308: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 6309: $udom = &LONCAPA::clean_domain($udom);
6310: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 6311: my $access=0;
1.800 albertel 6312: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 6313: my ($effect,$realm,$role,$type)=split(/\:/,$right);
6314: if ($type eq 'user') {
6315: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 6316: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 6317: if ($tdom) {
6318: if ($tdom ne $env{'user.domain'}) { next; }
6319: }
1.896 albertel 6320: if ($tuname) {
6321: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 6322: }
6323: $access=($effect eq 'allow');
6324: last;
6325: }
6326: } else {
6327: if ($role) {
6328: if ($role ne $urole) { next; }
6329: }
6330: foreach my $scope (split(/\s*\,\s*/,$realm)) {
6331: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
6332: if ($tdom) {
6333: if ($tdom ne $udom) { next; }
6334: }
6335: if ($tcrs) {
6336: if ($tcrs ne $ucrs) { next; }
6337: }
6338: if ($tsec) {
6339: if ($tsec ne $usec) { next; }
6340: }
6341: $access=($effect eq 'allow');
6342: last;
6343: }
6344: if ($realm eq '' && $role eq '') {
6345: $access=($effect eq 'allow');
6346: }
1.402 bowersj2 6347: }
1.341 www 6348: }
6349: return $access;
6350: }
6351:
1.103 harris41 6352: # ------------------------------------------------- Check for a user privilege
1.12 www 6353:
6354: sub allowed {
1.810 raeburn 6355: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 6356: my $ver_orguri=$uri;
1.439 www 6357: $uri=&deversion($uri);
1.152 www 6358: my $orguri=$uri;
1.52 www 6359: $uri=&declutter($uri);
1.809 raeburn 6360:
1.810 raeburn 6361: if ($priv eq 'evb') {
6362: # Evade communication block restrictions for specified role in a course
6363: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
6364: return $1;
6365: } else {
6366: return;
6367: }
6368: }
6369:
1.620 albertel 6370: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 6371: # Free bre access to adm and meta resources
1.775 albertel 6372: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 6373: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
6374: && ($priv eq 'bre')) {
1.14 www 6375: return 'F';
1.159 www 6376: }
6377:
1.545 banghart 6378: # Free bre access to user's own portfolio contents
1.714 raeburn 6379: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 6380: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 6381: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 6382: my %setters;
6383: my ($startblock,$endblock) =
6384: &Apache::loncommon::blockcheck(\%setters,'port');
6385: if ($startblock && $endblock) {
6386: return 'B';
6387: } else {
6388: return 'F';
6389: }
1.545 banghart 6390: }
6391:
1.762 raeburn 6392: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 6393: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
6394: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
6395: if (exists($env{'request.course.id'})) {
6396: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6397: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6398: if (($domain eq $cdom) && ($name eq $cnum)) {
6399: my $courseprivid=$env{'request.course.id'};
6400: $courseprivid=~s/\_/\//;
6401: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
6402: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
6403: return $1;
1.762 raeburn 6404: } else {
6405: if ($env{'request.course.sec'}) {
6406: $courseprivid.='/'.$env{'request.course.sec'};
6407: }
6408: if ($env{'user.priv.'.$env{'request.role'}.'./'.
6409: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
6410: return $2;
6411: }
1.714 raeburn 6412: }
6413: }
6414: }
6415: }
6416:
1.159 www 6417: # Free bre to public access
6418:
6419: if ($priv eq 'bre') {
1.238 www 6420: my $copyright=&metadata($uri,'copyright');
1.620 albertel 6421: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 6422: return 'F';
6423: }
1.238 www 6424: if ($copyright eq 'priv') {
6425: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6426: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 6427: return '';
6428: }
6429: }
6430: if ($copyright eq 'domain') {
6431: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6432: unless (($env{'user.domain'} eq $1) ||
6433: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 6434: return '';
6435: }
1.262 matthew 6436: }
1.620 albertel 6437: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 6438: # Library role, so allow browsing of resources in this domain.
6439: return 'F';
1.238 www 6440: }
1.341 www 6441: if ($copyright eq 'custom') {
6442: unless (&customaccess($priv,$uri)) { return ''; }
6443: }
1.14 www 6444: }
1.264 matthew 6445: # Domain coordinator is trying to create a course
1.620 albertel 6446: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 6447: # uri is the requested domain in this case.
6448: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 6449: # a role of dc for the domain in question.
1.620 albertel 6450: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 6451: }
1.29 www 6452:
1.52 www 6453: my $thisallowed='';
6454: my $statecond=0;
6455: my $courseprivid='';
6456:
1.1039 raeburn 6457: my $ownaccess;
1.1043 raeburn 6458: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 6459: if (($priv eq 'bro') && ($env{'user.author'})) {
6460: if ($uri eq '') {
6461: $ownaccess = 1;
6462: } else {
6463: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
6464: my $udom = $env{'user.domain'};
6465: my $uname = $env{'user.name'};
6466: if ($uri =~ m{^\Q$udom\E/?$}) {
6467: $ownaccess = 1;
1.1040 raeburn 6468: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 6469: unless ($uri =~ m{\.\./}) {
6470: $ownaccess = 1;
6471: }
6472: } elsif (($udom ne 'public') && ($uname ne 'public')) {
6473: my $now = time;
6474: if ($uri =~ m{^([^/]+)/?$}) {
6475: my $adom = $1;
6476: foreach my $key (keys(%env)) {
1.1042 raeburn 6477: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 6478: my ($start,$end) = split('.',$env{$key});
6479: if (($now >= $start) && (!$end || $end < $now)) {
6480: $ownaccess = 1;
6481: last;
6482: }
6483: }
6484: }
6485: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
6486: my $adom = $1;
6487: my $aname = $2;
1.1042 raeburn 6488: foreach my $role ('ca','aa') {
6489: if ($env{"user.role.$role./$adom/$aname"}) {
6490: my ($start,$end) =
6491: split('.',$env{"user.role.$role./$adom/$aname"});
6492: if (($now >= $start) && (!$end || $end < $now)) {
6493: $ownaccess = 1;
6494: last;
6495: }
1.1039 raeburn 6496: }
6497: }
6498: }
6499: }
6500: }
6501: }
6502: }
6503:
1.52 www 6504: # Course
6505:
1.620 albertel 6506: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6507: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6508: $thisallowed.=$1;
6509: }
1.52 www 6510: }
1.29 www 6511:
1.52 www 6512: # Domain
6513:
1.620 albertel 6514: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 6515: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6516: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6517: $thisallowed.=$1;
6518: }
1.12 www 6519: }
1.52 www 6520:
1.1141 raeburn 6521: # User who is not author or co-author might still be able to edit
6522: # resource of an author in the domain (e.g., if Domain Coordinator).
6523: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
6524: (&allowed('mdc',$env{'request.course.id'}))) {
6525: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
6526: $thisallowed.=$1;
6527: }
6528: }
6529:
1.52 www 6530: # Course: uri itself is a course
1.66 www 6531: my $courseuri=$uri;
6532: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 6533: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 6534:
1.620 albertel 6535: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 6536: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6537: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6538: $thisallowed.=$1;
6539: }
1.12 www 6540: }
1.29 www 6541:
1.665 albertel 6542: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 6543: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 6544: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 6545: $thisallowed='';
1.671 raeburn 6546: my ($match)=&is_on_map($uri);
6547: if ($match) {
6548: if ($env{'user.priv.'.$env{'request.role'}.'./'}
6549: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6550: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6551: if (@blockers > 0) {
6552: $thisallowed = 'B';
6553: } else {
6554: $thisallowed.=$1;
6555: }
1.671 raeburn 6556: }
6557: } else {
1.705 albertel 6558: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 6559: if ($refuri) {
6560: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 6561: $thisallowed='F';
1.671 raeburn 6562: } else {
6563: $refuri=&declutter($refuri);
6564: my ($match) = &is_on_map($refuri);
6565: if ($match) {
1.1162 raeburn 6566: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6567: if (@blockers > 0) {
6568: $thisallowed = 'B';
6569: } else {
6570: $thisallowed='F';
6571: }
1.671 raeburn 6572: }
1.669 raeburn 6573: }
1.671 raeburn 6574: }
6575: }
1.314 www 6576: }
1.492 albertel 6577:
1.766 albertel 6578: if ($priv eq 'bre'
6579: && $thisallowed ne 'F'
6580: && $thisallowed ne '2'
6581: && &is_portfolio_url($uri)) {
6582: $thisallowed = &portfolio_access($uri);
6583: }
6584:
1.52 www 6585: # Full access at system, domain or course-wide level? Exit.
1.29 www 6586: if ($thisallowed=~/F/) {
6587: return 'F';
6588: }
6589:
1.52 www 6590: # If this is generating or modifying users, exit with special codes
1.29 www 6591:
1.643 www 6592: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
6593: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 6594: my ($audom,$auname)=split('/',$uri);
1.643 www 6595: # no author name given, so this just checks on the general right to make a co-author in this domain
6596: unless ($auname) { return $thisallowed; }
6597: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 6598: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
6599: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
6600: ($audom ne $env{'request.role.domain'}))) { return ''; }
6601: }
1.52 www 6602: return $thisallowed;
6603: }
6604: #
1.103 harris41 6605: # Gathered so far: system, domain and course wide privileges
1.52 www 6606: #
6607: # Course: See if uri or referer is an individual resource that is part of
6608: # the course
6609:
1.620 albertel 6610: if ($env{'request.course.id'}) {
1.232 www 6611:
1.620 albertel 6612: $courseprivid=$env{'request.course.id'};
6613: if ($env{'request.course.sec'}) {
6614: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 6615: }
6616: $courseprivid=~s/\_/\//;
6617: my $checkreferer=1;
1.232 www 6618: my ($match,$cond)=&is_on_map($uri);
6619: if ($match) {
6620: $statecond=$cond;
1.620 albertel 6621: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6622: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6623: my $value = $1;
6624: if ($priv eq 'bre') {
6625: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6626: if (@blockers > 0) {
6627: $thisallowed = 'B';
6628: } else {
6629: $thisallowed.=$value;
6630: }
6631: } else {
6632: $thisallowed.=$value;
6633: }
1.52 www 6634: $checkreferer=0;
6635: }
1.29 www 6636: }
1.83 www 6637:
1.148 www 6638: if ($checkreferer) {
1.620 albertel 6639: my $refuri=$env{'httpref.'.$orguri};
1.148 www 6640: unless ($refuri) {
1.800 albertel 6641: foreach my $key (keys(%env)) {
6642: if ($key=~/^httpref\..*\*/) {
6643: my $pattern=$key;
1.156 www 6644: $pattern=~s/^httpref\.\/res\///;
1.148 www 6645: $pattern=~s/\*/\[\^\/\]\+/g;
6646: $pattern=~s/\//\\\//g;
1.152 www 6647: if ($orguri=~/$pattern/) {
1.800 albertel 6648: $refuri=$env{$key};
1.148 www 6649: }
6650: }
1.191 harris41 6651: }
1.148 www 6652: }
1.232 www 6653:
1.148 www 6654: if ($refuri) {
1.152 www 6655: $refuri=&declutter($refuri);
1.232 www 6656: my ($match,$cond)=&is_on_map($refuri);
6657: if ($match) {
6658: my $refstatecond=$cond;
1.620 albertel 6659: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6660: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6661: my $value = $1;
6662: if ($priv eq 'bre') {
6663: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6664: if (@blockers > 0) {
6665: $thisallowed = 'B';
6666: } else {
6667: $thisallowed.=$value;
6668: }
6669: } else {
6670: $thisallowed.=$value;
6671: }
1.53 www 6672: $uri=$refuri;
6673: $statecond=$refstatecond;
1.52 www 6674: }
6675: }
1.148 www 6676: }
1.29 www 6677: }
1.52 www 6678: }
1.29 www 6679:
1.52 www 6680: #
1.103 harris41 6681: # Gathered now: all privileges that could apply, and condition number
1.52 www 6682: #
6683: #
6684: # Full or no access?
6685: #
1.29 www 6686:
1.52 www 6687: if ($thisallowed=~/F/) {
6688: return 'F';
6689: }
1.29 www 6690:
1.52 www 6691: unless ($thisallowed) {
6692: return '';
6693: }
1.29 www 6694:
1.52 www 6695: # Restrictions exist, deal with them
6696: #
6697: # C:according to course preferences
6698: # R:according to resource settings
6699: # L:unless locked
6700: # X:according to user session state
6701: #
6702:
6703: # Possibly locked functionality, check all courses
1.54 www 6704: # Locks might take effect only after 10 minutes cache expiration for other
6705: # courses, and 2 minutes for current course
1.52 www 6706:
6707: my $envkey;
6708: if ($thisallowed=~/L/) {
1.1000 raeburn 6709: foreach $envkey (keys(%env)) {
1.54 www 6710: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
6711: my $courseid=$2;
6712: my $roleid=$1.'.'.$2;
1.92 www 6713: $courseid=~s/^\///;
1.54 www 6714: my $expiretime=600;
1.620 albertel 6715: if ($env{'request.role'} eq $roleid) {
1.54 www 6716: $expiretime=120;
6717: }
6718: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
6719: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 6720: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 6721: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 6722: }
1.620 albertel 6723: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
6724: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
6725: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
6726: &log($env{'user.domain'},$env{'user.name'},
6727: $env{'user.home'},
1.57 www 6728: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 6729: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6730: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6731: return '';
6732: }
6733: }
1.620 albertel 6734: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
6735: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
6736: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
6737: &log($env{'user.domain'},$env{'user.name'},
6738: $env{'user.home'},
1.57 www 6739: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 6740: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6741: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6742: return '';
6743: }
6744: }
6745: }
1.29 www 6746: }
1.52 www 6747: }
6748:
6749: #
6750: # Rest of the restrictions depend on selected course
6751: #
6752:
1.620 albertel 6753: unless ($env{'request.course.id'}) {
1.766 albertel 6754: if ($thisallowed eq 'A') {
6755: return 'A';
1.814 raeburn 6756: } elsif ($thisallowed eq 'B') {
6757: return 'B';
1.766 albertel 6758: } else {
6759: return '1';
6760: }
1.52 www 6761: }
1.29 www 6762:
1.52 www 6763: #
6764: # Now user is definitely in a course
6765: #
1.53 www 6766:
6767:
6768: # Course preferences
6769:
6770: if ($thisallowed=~/C/) {
1.620 albertel 6771: my $rolecode=(split(/\./,$env{'request.role'}))[0];
6772: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
6773: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 6774: =~/\Q$rolecode\E/) {
1.1103 raeburn 6775: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6776: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6777: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
6778: $env{'request.course.id'});
6779: }
1.237 www 6780: return '';
6781: }
6782:
1.620 albertel 6783: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 6784: =~/\Q$unamedom\E/) {
1.1103 raeburn 6785: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6786: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
6787: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
6788: $env{'request.course.id'});
6789: }
1.54 www 6790: return '';
6791: }
1.53 www 6792: }
6793:
6794: # Resource preferences
6795:
6796: if ($thisallowed=~/R/) {
1.620 albertel 6797: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 6798: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 6799: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6800: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6801: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
6802: }
6803: return '';
1.54 www 6804: }
1.53 www 6805: }
1.30 www 6806:
1.246 www 6807: # Restricted by state or randomout?
1.30 www 6808:
1.52 www 6809: if ($thisallowed=~/X/) {
1.620 albertel 6810: if ($env{'acc.randomout'}) {
1.579 albertel 6811: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 6812: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 6813: return '';
6814: }
1.247 www 6815: }
6816: if (&condval($statecond)) {
1.52 www 6817: return '2';
6818: } else {
6819: return '';
6820: }
6821: }
1.30 www 6822:
1.766 albertel 6823: if ($thisallowed eq 'A') {
6824: return 'A';
1.814 raeburn 6825: } elsif ($thisallowed eq 'B') {
6826: return 'B';
1.766 albertel 6827: }
1.52 www 6828: return 'F';
1.232 www 6829: }
1.1162 raeburn 6830:
1.1192 raeburn 6831: # ------------------------------------------- Check construction space access
6832:
6833: sub constructaccess {
6834: my ($url,$setpriv)=@_;
6835:
6836: # We do not allow editing of previous versions of files
6837: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
6838:
6839: # Get username and domain from URL
6840: my ($ownername,$ownerdomain,$ownerhome);
6841:
6842: ($ownerdomain,$ownername) =
6843: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)/});
6844:
6845: # The URL does not really point to any authorspace, forget it
6846: unless (($ownername) && ($ownerdomain)) { return ''; }
6847:
6848: # Now we need to see if the user has access to the authorspace of
6849: # $ownername at $ownerdomain
6850:
6851: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
6852: # Real author for this?
6853: $ownerhome = $env{'user.home'};
6854: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
6855: return ($ownername,$ownerdomain,$ownerhome);
6856: }
6857: } else {
6858: # Co-author for this?
6859: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
6860: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
6861: $ownerhome = &homeserver($ownername,$ownerdomain);
6862: return ($ownername,$ownerdomain,$ownerhome);
6863: }
6864: }
6865:
6866: # We don't have any access right now. If we are not possibly going to do anything about this,
6867: # we might as well leave
6868: unless ($setpriv) { return ''; }
6869:
6870: # Backdoor access?
6871: my $allowed=&allowed('eco',$ownerdomain);
6872: # Nope
6873: unless ($allowed) { return ''; }
6874: # Looks like we may have access, but could be locked by the owner of the construction space
6875: if ($allowed eq 'U') {
6876: my %blocked=&get('environment',['domcoord.author'],
6877: $ownerdomain,$ownername);
6878: # Is blocked by owner
6879: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
6880: }
6881: if (($allowed eq 'F') || ($allowed eq 'U')) {
6882: # Grant temporary access
6883: my $then=$env{'user.login.time'};
6884: my $update==$env{'user.update.time'};
6885: if (!$update) { $update = $then; }
6886: my $refresh=$env{'user.refresh.time'};
6887: if (!$refresh) { $refresh = $update; }
6888: my $now = time;
6889: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
6890: $now,'ca','constructaccess');
6891: $ownerhome = &homeserver($ownername,$ownerdomain);
6892: return($ownername,$ownerdomain,$ownerhome);
6893: }
6894: # No business here
6895: return '';
6896: }
6897:
1.1162 raeburn 6898: sub get_comm_blocks {
6899: my ($cdom,$cnum) = @_;
6900: if ($cdom eq '' || $cnum eq '') {
6901: return unless ($env{'request.course.id'});
6902: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6903: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6904: }
6905: my %commblocks;
6906: my $hashid=$cdom.'_'.$cnum;
6907: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
6908: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
6909: %commblocks = %{$blocksref};
6910: } else {
6911: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
6912: my $cachetime = 600;
6913: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
6914: }
6915: return %commblocks;
6916: }
6917:
6918: sub has_comm_blocking {
6919: my ($priv,$symb,$uri,$blocks) = @_;
6920: return unless ($env{'request.course.id'});
6921: return unless ($priv eq 'bre');
6922: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
6923: my %commblocks;
6924: if (ref($blocks) eq 'HASH') {
6925: %commblocks = %{$blocks};
6926: } else {
6927: %commblocks = &get_comm_blocks();
6928: }
6929: return unless (keys(%commblocks) > 0);
6930: if (!$symb) { $symb=&symbread($uri,1); }
6931: my ($map,$resid,undef)=&decode_symb($symb);
6932: my %tocheck = (
6933: maps => $map,
6934: resources => $symb,
6935: );
6936: my @blockers;
6937: my $now = time;
1.1163 raeburn 6938: my $navmap = Apache::lonnavmaps::navmap->new();
1.1162 raeburn 6939: foreach my $block (keys(%commblocks)) {
6940: if ($block =~ /^(\d+)____(\d+)$/) {
6941: my ($start,$end) = ($1,$2);
6942: if ($start <= $now && $end >= $now) {
6943: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6944: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6945: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
6946: if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
6947: unless (grep(/^\Q$block\E$/,@blockers)) {
6948: push(@blockers,$block);
6949: }
6950: }
6951: }
6952: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
6953: if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
6954: unless (grep(/^\Q$block\E$/,@blockers)) {
6955: push(@blockers,$block);
6956: }
6957: }
6958: }
6959: }
6960: }
6961: }
6962: } elsif ($block =~ /^firstaccess____(.+)$/) {
6963: my $item = $1;
1.1163 raeburn 6964: my @to_test;
1.1162 raeburn 6965: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6966: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6967: my $check_interval;
6968: if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
6969: my @interval;
6970: my $type = 'map';
6971: if ($item eq 'course') {
6972: $type = 'course';
6973: @interval=&EXT("resource.0.interval");
6974: } else {
6975: if ($item =~ /___\d+___/) {
6976: $type = 'resource';
6977: @interval=&EXT("resource.0.interval",$item);
1.1163 raeburn 6978: if (ref($navmap)) {
6979: my $res = $navmap->getBySymb($item);
6980: push(@to_test,$res);
6981: }
1.1162 raeburn 6982: } else {
6983: my $mapsymb = &symbread($item,1);
6984: if ($mapsymb) {
6985: if (ref($navmap)) {
6986: my $mapres = $navmap->getBySymb($mapsymb);
1.1163 raeburn 6987: @to_test = $mapres->retrieveResources($mapres,undef,0,1);
6988: foreach my $res (@to_test) {
1.1162 raeburn 6989: my $symb = $res->symb();
6990: next if ($symb eq $mapsymb);
6991: if ($symb ne '') {
6992: @interval=&EXT("resource.0.interval",$symb);
6993: last;
6994: }
6995: }
6996: }
6997: }
6998: }
6999: }
7000: if ($interval[0] =~ /\d+/) {
7001: my $first_access;
7002: if ($type eq 'resource') {
7003: $first_access=&get_first_access($interval[1],$item);
7004: } elsif ($type eq 'map') {
7005: $first_access=&get_first_access($interval[1],undef,$item);
7006: } else {
7007: $first_access=&get_first_access($interval[1]);
7008: }
7009: if ($first_access) {
7010: my $timesup = $first_access+$interval[0];
7011: if ($timesup > $now) {
1.1163 raeburn 7012: foreach my $res (@to_test) {
7013: if ($res->is_problem()) {
7014: if ($res->completable()) {
7015: unless (grep(/^\Q$block\E$/,@blockers)) {
7016: push(@blockers,$block);
7017: }
7018: last;
7019: }
7020: }
1.1162 raeburn 7021: }
7022: }
7023: }
7024: }
7025: }
7026: }
7027: }
7028: }
7029: }
7030: return @blockers;
7031: }
7032:
7033: sub check_docs_block {
7034: my ($docsblock,$tocheck) =@_;
7035: if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) {
7036: return;
7037: }
7038: if (ref($docsblock->{'maps'}) eq 'HASH') {
7039: if ($tocheck->{'maps'}) {
7040: if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
7041: return 1;
7042: }
7043: }
7044: }
7045: if (ref($docsblock->{'resources'}) eq 'HASH') {
7046: if ($tocheck->{'resources'}) {
7047: if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
7048: return 1;
7049: }
7050: }
7051: }
7052: return;
7053: }
7054:
1.1133 foxr 7055: #
7056: # Removes the versino from a URI and
7057: # splits it in to its filename and path to the filename.
7058: # Seems like File::Basename could have done this more clearly.
7059: # Parameters:
7060: # $uri - input URI
7061: # Returns:
7062: # Two element list consisting of
7063: # $pathname - the URI up to and excluding the trailing /
7064: # $filename - The part of the URI following the last /
7065: # NOTE:
7066: # Another realization of this is simply:
7067: # use File::Basename;
7068: # ...
7069: # $uri = shift;
7070: # $filename = basename($uri);
7071: # $path = dirname($uri);
7072: # return ($filename, $path);
7073: #
7074: # The implementation below is probably faster however.
7075: #
1.710 albertel 7076: sub split_uri_for_cond {
7077: my $uri=&deversion(&declutter(shift));
7078: my @uriparts=split(/\//,$uri);
7079: my $filename=pop(@uriparts);
7080: my $pathname=join('/',@uriparts);
7081: return ($pathname,$filename);
7082: }
1.232 www 7083: # --------------------------------------------------- Is a resource on the map?
7084:
7085: sub is_on_map {
1.710 albertel 7086: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 7087: #Trying to find the conditional for the file
1.620 albertel 7088: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 7089: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 7090: if ($match) {
1.289 bowersj2 7091: return (1,$1);
7092: } else {
1.434 www 7093: return (0,0);
1.289 bowersj2 7094: }
1.12 www 7095: }
7096:
1.427 www 7097: # --------------------------------------------------------- Get symb from alias
7098:
7099: sub get_symb_from_alias {
7100: my $symb=shift;
7101: my ($map,$resid,$url)=&decode_symb($symb);
7102: # Already is a symb
7103: if ($url) { return $symb; }
7104: # Must be an alias
7105: my $aliassymb='';
7106: my %bighash;
1.620 albertel 7107: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 7108: &GDBM_READER(),0640)) {
7109: my $rid=$bighash{'mapalias_'.$symb};
7110: if ($rid) {
7111: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 7112: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
7113: $resid,$bighash{'src_'.$rid});
1.427 www 7114: }
7115: untie %bighash;
7116: }
7117: return $aliassymb;
7118: }
7119:
1.12 www 7120: # ----------------------------------------------------------------- Define Role
7121:
7122: sub definerole {
7123: if (allowed('mcr','/')) {
7124: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 7125: foreach my $role (split(':',$sysrole)) {
7126: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7127: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
7128: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
7129: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7130: return "refused:s:$crole&$cqual";
7131: }
7132: }
1.191 harris41 7133: }
1.800 albertel 7134: foreach my $role (split(':',$domrole)) {
7135: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7136: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
7137: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
7138: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 7139: return "refused:d:$crole&$cqual";
7140: }
7141: }
1.191 harris41 7142: }
1.800 albertel 7143: foreach my $role (split(':',$courole)) {
7144: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7145: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
7146: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
7147: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7148: return "refused:c:$crole&$cqual";
7149: }
7150: }
1.191 harris41 7151: }
1.620 albertel 7152: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
7153: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7154: "rolesdef_$rolename=".
7155: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 7156: return reply($command,$env{'user.home'});
1.12 www 7157: } else {
7158: return 'refused';
7159: }
1.105 harris41 7160: }
7161:
7162: # ---------------- Make a metadata query against the network of library servers
7163:
7164: sub metadata_query {
1.244 matthew 7165: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 7166: my %rhash;
1.845 albertel 7167: my %libserv = &all_library();
1.244 matthew 7168: my @server_list = (defined($server_array) ? @$server_array
7169: : keys(%libserv) );
7170: for my $server (@server_list) {
1.118 harris41 7171: unless ($custom or $customshow) {
7172: my $reply=&reply("querysend:".&escape($query),$server);
7173: $rhash{$server}=$reply;
7174: }
7175: else {
7176: my $reply=&reply("querysend:".&escape($query).':'.
7177: &escape($custom).':'.&escape($customshow),
7178: $server);
7179: $rhash{$server}=$reply;
7180: }
1.112 harris41 7181: }
1.118 harris41 7182: return \%rhash;
1.240 www 7183: }
7184:
7185: # ----------------------------------------- Send log queries and wait for reply
7186:
7187: sub log_query {
7188: my ($uname,$udom,$query,%filters)=@_;
7189: my $uhome=&homeserver($uname,$udom);
7190: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 7191: my $uhost=&hostname($uhome);
1.800 albertel 7192: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 7193: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
7194: $uhome);
1.479 albertel 7195: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 7196: return get_query_reply($queryid);
7197: }
7198:
1.818 raeburn 7199: # -------------------------- Update MySQL table for portfolio file
7200:
7201: sub update_portfolio_table {
1.821 raeburn 7202: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 7203: if ($group ne '') {
7204: $file_name =~s /^\Q$group\E//;
7205: }
1.818 raeburn 7206: my $homeserver = &homeserver($uname,$udom);
7207: my $queryid=
1.821 raeburn 7208: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
7209: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 7210: my $reply = &get_query_reply($queryid);
7211: return $reply;
7212: }
7213:
1.899 raeburn 7214: # -------------------------- Update MySQL allusers table
7215:
7216: sub update_allusers_table {
7217: my ($uname,$udom,$names) = @_;
7218: my $homeserver = &homeserver($uname,$udom);
7219: my $queryid=
7220: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
7221: 'lastname='.&escape($names->{'lastname'}).'%%'.
7222: 'firstname='.&escape($names->{'firstname'}).'%%'.
7223: 'middlename='.&escape($names->{'middlename'}).'%%'.
7224: 'generation='.&escape($names->{'generation'}).'%%'.
7225: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
7226: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 7227: return;
1.899 raeburn 7228: }
7229:
1.508 raeburn 7230: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 7231:
7232: sub fetch_enrollment_query {
1.511 raeburn 7233: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 7234: my $homeserver;
1.547 raeburn 7235: my $maxtries = 1;
1.508 raeburn 7236: if ($context eq 'automated') {
7237: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 7238: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 7239: } else {
7240: $homeserver = &homeserver($cnum,$dom);
7241: }
1.838 albertel 7242: my $host=&hostname($homeserver);
1.506 raeburn 7243: my $cmd = '';
1.1000 raeburn 7244: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 7245: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 7246: }
7247: $cmd =~ s/%%$//;
7248: $cmd = &escape($cmd);
7249: my $query = 'fetchenrollment';
1.620 albertel 7250: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 7251: unless ($queryid=~/^\Q$host\E\_/) {
7252: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
7253: return 'error: '.$queryid;
7254: }
1.506 raeburn 7255: my $reply = &get_query_reply($queryid);
1.547 raeburn 7256: my $tries = 1;
7257: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7258: $reply = &get_query_reply($queryid);
7259: $tries ++;
7260: }
1.526 raeburn 7261: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 7262: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 7263: } else {
1.901 albertel 7264: my @responses = split(/:/,$reply);
1.515 raeburn 7265: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 7266: foreach my $line (@responses) {
7267: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 7268: $$replyref{$key} = $value;
7269: }
7270: } else {
1.1117 foxr 7271: my $pathname = LONCAPA::tempdir();
1.800 albertel 7272: foreach my $line (@responses) {
7273: my ($key,$value) = split(/=/,$line);
1.506 raeburn 7274: $$replyref{$key} = $value;
7275: if ($value > 0) {
1.800 albertel 7276: foreach my $item (@{$$affiliatesref{$key}}) {
7277: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 7278: my $destname = $pathname.'/'.$filename;
7279: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 7280: if ($xml_classlist =~ /^error/) {
7281: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
7282: } else {
1.506 raeburn 7283: if ( open(FILE,">$destname") ) {
7284: print FILE &unescape($xml_classlist);
7285: close(FILE);
1.526 raeburn 7286: } else {
7287: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 7288: }
7289: }
7290: }
7291: }
7292: }
7293: }
7294: return 'ok';
7295: }
7296: return 'error';
7297: }
7298:
1.242 www 7299: sub get_query_reply {
7300: my $queryid=shift;
1.1117 foxr 7301: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 7302: my $reply='';
7303: for (1..100) {
7304: sleep 2;
7305: if (-e $replyfile.'.end') {
1.448 albertel 7306: if (open(my $fh,$replyfile)) {
1.904 albertel 7307: $reply = join('',<$fh>);
7308: close($fh);
1.240 www 7309: } else { return 'error: reply_file_error'; }
1.242 www 7310: return &unescape($reply);
7311: }
1.240 www 7312: }
1.242 www 7313: return 'timeout:'.$queryid;
1.240 www 7314: }
7315:
7316: sub courselog_query {
1.241 www 7317: #
7318: # possible filters:
7319: # url: url or symb
7320: # username
7321: # domain
7322: # action: view, submit, grade
7323: # start: timestamp
7324: # end: timestamp
7325: #
1.240 www 7326: my (%filters)=@_;
1.620 albertel 7327: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 7328: if ($filters{'url'}) {
7329: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
7330: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
7331: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
7332: }
1.620 albertel 7333: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
7334: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 7335: return &log_query($cname,$cdom,'courselog',%filters);
7336: }
7337:
7338: sub userlog_query {
1.858 raeburn 7339: #
7340: # possible filters:
7341: # action: log check role
7342: # start: timestamp
7343: # end: timestamp
7344: #
1.240 www 7345: my ($uname,$udom,%filters)=@_;
7346: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 7347: }
7348:
1.506 raeburn 7349: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
7350:
7351: sub auto_run {
1.508 raeburn 7352: my ($cnum,$cdom) = @_;
1.876 raeburn 7353: my $response = 0;
7354: my $settings;
7355: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
7356: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
7357: $settings = $domconfig{'autoenroll'};
7358: if ($settings->{'run'} eq '1') {
7359: $response = 1;
7360: }
7361: } else {
1.934 raeburn 7362: my $homeserver;
7363: if (&is_course($cdom,$cnum)) {
7364: $homeserver = &homeserver($cnum,$cdom);
7365: } else {
7366: $homeserver = &domain($cdom,'primary');
7367: }
7368: if ($homeserver ne 'no_host') {
7369: $response = &reply('autorun:'.$cdom,$homeserver);
7370: }
1.876 raeburn 7371: }
1.506 raeburn 7372: return $response;
7373: }
1.776 albertel 7374:
1.506 raeburn 7375: sub auto_get_sections {
1.508 raeburn 7376: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 7377: my $homeserver;
7378: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7379: $homeserver = &homeserver($cnum,$cdom);
7380: }
7381: if (!defined($homeserver)) {
7382: if ($cdom =~ /^$match_domain$/) {
7383: $homeserver = &domain($cdom,'primary');
7384: }
7385: }
7386: my @secs;
7387: if (defined($homeserver)) {
7388: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
7389: unless ($response eq 'refused') {
7390: @secs = split(/:/,$response);
7391: }
1.506 raeburn 7392: }
7393: return @secs;
7394: }
1.776 albertel 7395:
1.506 raeburn 7396: sub auto_new_course {
1.1099 raeburn 7397: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 7398: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 7399: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 7400: return $response;
7401: }
1.776 albertel 7402:
1.506 raeburn 7403: sub auto_validate_courseID {
1.508 raeburn 7404: my ($cnum,$cdom,$inst_course_id) = @_;
7405: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 7406: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 7407: return $response;
7408: }
1.776 albertel 7409:
1.1007 raeburn 7410: sub auto_validate_instcode {
1.1020 raeburn 7411: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 7412: my ($homeserver,$response);
7413: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7414: $homeserver = &homeserver($cnum,$cdom);
7415: }
7416: if (!defined($homeserver)) {
7417: if ($cdom =~ /^$match_domain$/) {
7418: $homeserver = &domain($cdom,'primary');
7419: }
7420: }
1.1065 raeburn 7421: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
7422: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 7423: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
7424: return ($outcome,$description);
1.1007 raeburn 7425: }
7426:
1.506 raeburn 7427: sub auto_create_password {
1.873 raeburn 7428: my ($cnum,$cdom,$authparam,$udom) = @_;
7429: my ($homeserver,$response);
1.506 raeburn 7430: my $create_passwd = 0;
7431: my $authchk = '';
1.873 raeburn 7432: if ($udom =~ /^$match_domain$/) {
7433: $homeserver = &domain($udom,'primary');
7434: }
7435: if ($homeserver eq '') {
7436: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7437: $homeserver = &homeserver($cnum,$cdom);
7438: }
7439: }
7440: if ($homeserver eq '') {
7441: $authchk = 'nodomain';
1.506 raeburn 7442: } else {
1.873 raeburn 7443: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
7444: if ($response eq 'refused') {
7445: $authchk = 'refused';
7446: } else {
1.901 albertel 7447: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 7448: }
1.506 raeburn 7449: }
7450: return ($authparam,$create_passwd,$authchk);
7451: }
7452:
1.706 raeburn 7453: sub auto_photo_permission {
7454: my ($cnum,$cdom,$students) = @_;
7455: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 7456: my ($outcome,$perm_reqd,$conditions) =
7457: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 7458: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7459: return (undef,undef);
7460: }
1.706 raeburn 7461: return ($outcome,$perm_reqd,$conditions);
7462: }
7463:
7464: sub auto_checkphotos {
7465: my ($uname,$udom,$pid) = @_;
7466: my $homeserver = &homeserver($uname,$udom);
7467: my ($result,$resulttype);
7468: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 7469: &escape($uname).':'.&escape($pid),
7470: $homeserver));
1.709 albertel 7471: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7472: return (undef,undef);
7473: }
1.706 raeburn 7474: if ($outcome) {
7475: ($result,$resulttype) = split(/:/,$outcome);
7476: }
7477: return ($result,$resulttype);
7478: }
7479:
7480: sub auto_photochoice {
7481: my ($cnum,$cdom) = @_;
7482: my $homeserver = &homeserver($cnum,$cdom);
7483: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 7484: &escape($cdom),
7485: $homeserver)));
1.709 albertel 7486: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7487: return (undef,undef);
7488: }
1.706 raeburn 7489: return ($update,$comment);
7490: }
7491:
7492: sub auto_photoupdate {
7493: my ($affiliatesref,$dom,$cnum,$photo) = @_;
7494: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 7495: my $host=&hostname($homeserver);
1.706 raeburn 7496: my $cmd = '';
7497: my $maxtries = 1;
1.800 albertel 7498: foreach my $affiliate (keys(%{$affiliatesref})) {
7499: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 7500: }
7501: $cmd =~ s/%%$//;
7502: $cmd = &escape($cmd);
7503: my $query = 'institutionalphotos';
7504: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
7505: unless ($queryid=~/^\Q$host\E\_/) {
7506: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
7507: return 'error: '.$queryid;
7508: }
7509: my $reply = &get_query_reply($queryid);
7510: my $tries = 1;
7511: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7512: $reply = &get_query_reply($queryid);
7513: $tries ++;
7514: }
7515: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
7516: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
7517: } else {
7518: my @responses = split(/:/,$reply);
7519: my $outcome = shift(@responses);
7520: foreach my $item (@responses) {
7521: my ($key,$value) = split(/=/,$item);
7522: $$photo{$key} = $value;
7523: }
7524: return $outcome;
7525: }
7526: return 'error';
7527: }
7528:
1.521 raeburn 7529: sub auto_instcode_format {
1.793 albertel 7530: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
7531: $cat_order) = @_;
1.521 raeburn 7532: my $courses = '';
1.772 raeburn 7533: my @homeservers;
1.521 raeburn 7534: if ($caller eq 'global') {
1.841 albertel 7535: my %servers = &get_servers($codedom,'library');
7536: foreach my $tryserver (keys(%servers)) {
7537: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7538: push(@homeservers,$tryserver);
7539: }
1.584 raeburn 7540: }
1.1022 raeburn 7541: } elsif ($caller eq 'requests') {
7542: if ($codedom =~ /^$match_domain$/) {
7543: my $chome = &domain($codedom,'primary');
7544: unless ($chome eq 'no_host') {
7545: push(@homeservers,$chome);
7546: }
7547: }
1.521 raeburn 7548: } else {
1.772 raeburn 7549: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 7550: }
1.793 albertel 7551: foreach my $code (keys(%{$instcodes})) {
7552: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 7553: }
7554: chop($courses);
1.772 raeburn 7555: my $ok_response = 0;
7556: my $response;
7557: while (@homeservers > 0 && $ok_response == 0) {
7558: my $server = shift(@homeservers);
7559: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
7560: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
7561: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 7562: split(/:/,$response);
1.772 raeburn 7563: %{$codes} = (%{$codes},&str2hash($codes_str));
7564: push(@{$codetitles},&str2array($codetitles_str));
7565: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
7566: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
7567: $ok_response = 1;
7568: }
7569: }
7570: if ($ok_response) {
1.521 raeburn 7571: return 'ok';
1.772 raeburn 7572: } else {
7573: return $response;
1.521 raeburn 7574: }
7575: }
7576:
1.792 raeburn 7577: sub auto_instcode_defaults {
7578: my ($domain,$returnhash,$code_order) = @_;
7579: my @homeservers;
1.841 albertel 7580:
7581: my %servers = &get_servers($domain,'library');
7582: foreach my $tryserver (keys(%servers)) {
7583: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7584: push(@homeservers,$tryserver);
7585: }
1.792 raeburn 7586: }
1.841 albertel 7587:
1.792 raeburn 7588: my $response;
1.841 albertel 7589: foreach my $server (@homeservers) {
1.792 raeburn 7590: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 7591: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
7592:
7593: foreach my $pair (split(/\&/,$response)) {
7594: my ($name,$value)=split(/\=/,$pair);
7595: if ($name eq 'code_order') {
7596: @{$code_order} = split(/\&/,&unescape($value));
7597: } else {
7598: $returnhash->{&unescape($name)}=&unescape($value);
7599: }
7600: }
7601: return 'ok';
1.792 raeburn 7602: }
1.841 albertel 7603:
7604: return $response;
1.1003 raeburn 7605: }
7606:
7607: sub auto_possible_instcodes {
1.1007 raeburn 7608: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
7609: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
7610: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
7611: return;
7612: }
1.1003 raeburn 7613: my (@homeservers,$uhome);
7614: if (defined(&domain($domain,'primary'))) {
7615: $uhome=&domain($domain,'primary');
7616: push(@homeservers,&domain($domain,'primary'));
7617: } else {
7618: my %servers = &get_servers($domain,'library');
7619: foreach my $tryserver (keys(%servers)) {
7620: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7621: push(@homeservers,$tryserver);
7622: }
7623: }
7624: }
7625: my $response;
7626: foreach my $server (@homeservers) {
7627: $response=&reply('autopossibleinstcodes:'.$domain,$server);
7628: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 7629: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
7630: split(':',$response);
7631: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
7632: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 7633: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 7634: my ($name,$value)=split('=',$item);
7635: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7636: }
7637: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 7638: my ($name,$value)=split('=',$item);
7639: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7640: }
7641: return 'ok';
7642: }
7643: return $response;
7644: }
1.792 raeburn 7645:
1.1010 raeburn 7646: sub auto_courserequest_checks {
7647: my ($dom) = @_;
1.1020 raeburn 7648: my ($homeserver,%validations);
7649: if ($dom =~ /^$match_domain$/) {
7650: $homeserver = &domain($dom,'primary');
7651: }
7652: unless ($homeserver eq 'no_host') {
7653: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
7654: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7655: my @items = split(/&/,$response);
7656: foreach my $item (@items) {
7657: my ($key,$value) = split('=',$item);
7658: $validations{&unescape($key)} = &thaw_unescape($value);
7659: }
7660: }
7661: }
1.1010 raeburn 7662: return %validations;
7663: }
7664:
1.1020 raeburn 7665: sub auto_courserequest_validation {
7666: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
7667: my ($homeserver,$response);
7668: if ($dom =~ /^$match_domain$/) {
7669: $homeserver = &domain($dom,'primary');
7670: }
7671: unless ($homeserver eq 'no_host') {
1.1021 raeburn 7672:
1.1020 raeburn 7673: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 7674: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 7675: ':'.&escape($instcode).':'.&escape($instseclist),
7676: $homeserver));
7677: }
7678: return $response;
7679: }
7680:
1.777 albertel 7681: sub auto_validate_class_sec {
1.918 raeburn 7682: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 7683: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 7684: my $ownerlist;
7685: if (ref($owners) eq 'ARRAY') {
7686: $ownerlist = join(',',@{$owners});
7687: } else {
7688: $ownerlist = $owners;
7689: }
1.773 raeburn 7690: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 7691: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 7692: return $response;
7693: }
7694:
1.679 raeburn 7695: # ------------------------------------------------------- Course Group routines
7696:
7697: sub get_coursegroups {
1.809 raeburn 7698: my ($cdom,$cnum,$group,$namespace) = @_;
7699: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 7700: }
7701:
1.679 raeburn 7702: sub modify_coursegroup {
7703: my ($cdom,$cnum,$groupsettings) = @_;
7704: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
7705: }
7706:
1.809 raeburn 7707: sub toggle_coursegroup_status {
7708: my ($cdom,$cnum,$group,$action) = @_;
7709: my ($from_namespace,$to_namespace);
7710: if ($action eq 'delete') {
7711: $from_namespace = 'coursegroups';
7712: $to_namespace = 'deleted_groups';
7713: } else {
7714: $from_namespace = 'deleted_groups';
7715: $to_namespace = 'coursegroups';
7716: }
7717: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 7718: if (my $tmp = &error(%curr_group)) {
7719: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
7720: return ('read error',$tmp);
7721: } else {
7722: my %savedsettings = %curr_group;
1.809 raeburn 7723: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 7724: my $deloutcome;
7725: if ($result eq 'ok') {
1.809 raeburn 7726: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 7727: } else {
7728: return ('write error',$result);
7729: }
7730: if ($deloutcome eq 'ok') {
7731: return 'ok';
7732: } else {
7733: return ('delete error',$deloutcome);
7734: }
7735: }
7736: }
7737:
1.679 raeburn 7738: sub modify_group_roles {
1.957 raeburn 7739: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 7740: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
7741: my $role = 'gr/'.&escape($userprivs);
7742: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 7743: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 7744: if ($result eq 'ok') {
7745: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
7746: }
1.679 raeburn 7747: return $result;
7748: }
7749:
7750: sub modify_coursegroup_membership {
7751: my ($cdom,$cnum,$membership) = @_;
7752: my $result = &put('groupmembership',$membership,$cdom,$cnum);
7753: return $result;
7754: }
7755:
1.682 raeburn 7756: sub get_active_groups {
7757: my ($udom,$uname,$cdom,$cnum) = @_;
7758: my $now = time;
7759: my %groups = ();
7760: foreach my $key (keys(%env)) {
1.811 albertel 7761: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 7762: my ($start,$end) = split(/\./,$env{$key});
7763: if (($end!=0) && ($end<$now)) { next; }
7764: if (($start!=0) && ($start>$now)) { next; }
7765: if ($1 eq $cdom && $2 eq $cnum) {
7766: $groups{$3} = $env{$key} ;
7767: }
7768: }
7769: }
7770: return %groups;
7771: }
7772:
1.683 raeburn 7773: sub get_group_membership {
7774: my ($cdom,$cnum,$group) = @_;
7775: return(&dump('groupmembership',$cdom,$cnum,$group));
7776: }
7777:
7778: sub get_users_groups {
7779: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 7780: my @usersgroups;
1.683 raeburn 7781: my $cachetime=1800;
7782:
7783: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 7784: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
7785: if (defined($cached)) {
1.734 albertel 7786: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 7787: } else {
7788: $grouplist = '';
1.816 raeburn 7789: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 7790: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 7791: my $access_end = $env{'course.'.$courseid.
7792: '.default_enrollment_end_date'};
7793: my $now = time;
7794: foreach my $key (keys(%roleshash)) {
7795: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
7796: my $group = $1;
7797: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
7798: my $start = $2;
7799: my $end = $1;
7800: if ($start == -1) { next; } # deleted from group
7801: if (($start!=0) && ($start>$now)) { next; }
7802: if (($end!=0) && ($end<$now)) {
7803: if ($access_end && $access_end < $now) {
7804: if ($access_end - $end < 86400) {
7805: push(@usersgroups,$group);
1.733 raeburn 7806: }
7807: }
1.817 raeburn 7808: next;
1.733 raeburn 7809: }
1.817 raeburn 7810: push(@usersgroups,$group);
1.683 raeburn 7811: }
7812: }
7813: }
1.817 raeburn 7814: @usersgroups = &sort_course_groups($courseid,@usersgroups);
7815: $grouplist = join(':',@usersgroups);
7816: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 7817: }
1.733 raeburn 7818: return @usersgroups;
1.683 raeburn 7819: }
7820:
7821: sub devalidate_getgroups_cache {
7822: my ($udom,$uname,$cdom,$cnum)=@_;
7823: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 7824:
1.683 raeburn 7825: my $hashid="$udom:$uname:$courseid";
7826: &devalidate_cache_new('getgroups',$hashid);
7827: }
7828:
1.12 www 7829: # ------------------------------------------------------------------ Plain Text
7830:
7831: sub plaintext {
1.988 raeburn 7832: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 7833: if ($short =~ m{^cr/}) {
1.758 albertel 7834: return (split('/',$short))[-1];
7835: }
1.742 raeburn 7836: if (!defined($cid)) {
7837: $cid = $env{'request.course.id'};
7838: }
7839: my %rolenames = (
1.1008 raeburn 7840: Course => 'std',
7841: Community => 'alt1',
1.742 raeburn 7842: );
1.1037 raeburn 7843: if ($cid ne '') {
7844: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
7845: unless ($forcedefault) {
7846: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
7847: &Apache::lonlocal::mt_escape(\$roletext);
7848: return &Apache::lonlocal::mt($roletext);
7849: }
7850: }
7851: }
7852: if ((defined($type)) && (defined($rolenames{$type})) &&
7853: (defined($rolenames{$type})) &&
7854: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 7855: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 7856: } elsif ($cid ne '') {
7857: my $crstype = $env{'course.'.$cid.'.type'};
7858: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
7859: (defined($prp{$short}{$rolenames{$crstype}}))) {
7860: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
7861: }
1.742 raeburn 7862: }
1.1037 raeburn 7863: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 7864: }
7865:
7866: # ----------------------------------------------------------------- Assign Role
7867:
7868: sub assignrole {
1.957 raeburn 7869: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
7870: $context)=@_;
1.21 www 7871: my $mrole;
7872: if ($role =~ /^cr\//) {
1.393 www 7873: my $cwosec=$url;
1.811 albertel 7874: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 7875: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 7876: my $refused = 1;
7877: if ($context eq 'requestcourses') {
7878: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
7879: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
7880: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
7881: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7882: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7883: if ($crsenv{'internal.courseowner'} eq
7884: $env{'user.name'}.':'.$env{'user.domain'}) {
7885: $refused = '';
7886: }
7887: }
7888: }
7889: }
7890: }
7891: if ($refused) {
7892: &logthis('Refused custom assignrole: '.
7893: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
7894: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
7895: return 'refused';
7896: }
1.104 www 7897: }
1.21 www 7898: $mrole='cr';
1.678 raeburn 7899: } elsif ($role =~ /^gr\//) {
7900: my $cwogrp=$url;
1.811 albertel 7901: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 7902: unless (&allowed('mdg',$cwogrp)) {
7903: &logthis('Refused group assignrole: '.
7904: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
7905: $env{'user.name'}.' at '.$env{'user.domain'});
7906: return 'refused';
7907: }
7908: $mrole='gr';
1.21 www 7909: } else {
1.82 www 7910: my $cwosec=$url;
1.811 albertel 7911: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 7912: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
7913: my $refused;
7914: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
7915: if (!(&allowed('c'.$role,$url))) {
7916: $refused = 1;
7917: }
7918: } else {
7919: $refused = 1;
7920: }
1.947 raeburn 7921: if ($refused) {
1.1045 raeburn 7922: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7923: if (!$selfenroll && $context eq 'course') {
7924: my %crsenv;
7925: if ($role eq 'cc' || $role eq 'co') {
7926: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7927: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
7928: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
7929: if ($crsenv{'internal.courseowner'} eq
7930: $env{'user.name'}.':'.$env{'user.domain'}) {
7931: $refused = '';
7932: }
7933: }
7934: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
7935: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
7936: if ($crsenv{'internal.courseowner'} eq
7937: $env{'user.name'}.':'.$env{'user.domain'}) {
7938: $refused = '';
7939: }
7940: }
7941: }
7942: }
7943: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 7944: $refused = '';
1.1017 raeburn 7945: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 7946: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 7947: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 7948: my $wrongcc;
7949: if ($cnum =~ /^$match_community$/) {
7950: $wrongcc = 1 if ($role eq 'cc');
7951: } else {
7952: $wrongcc = 1 if ($role eq 'co');
7953: }
7954: unless ($wrongcc) {
7955: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7956: if ($crsenv{'internal.courseowner'} eq
7957: $env{'user.name'}.':'.$env{'user.domain'}) {
7958: $refused = '';
7959: }
1.1017 raeburn 7960: }
7961: }
1.1183 raeburn 7962: } elsif ($context eq 'requestauthor') {
7963: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
7964: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
7965: if ($env{'environment.requestauthor'} eq 'automatic') {
7966: $refused = '';
7967: } else {
7968: my %domdefaults = &get_domain_defaults($udom);
7969: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
7970: my $checkbystatus;
7971: if ($env{'user.adv'}) {
7972: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
7973: if ($disposition eq 'automatic') {
7974: $refused = '';
7975: } elsif ($disposition eq '') {
7976: $checkbystatus = 1;
7977: }
7978: } else {
7979: $checkbystatus = 1;
7980: }
7981: if ($checkbystatus) {
7982: if ($env{'environment.inststatus'}) {
7983: my @inststatuses = split(/,/,$env{'environment.inststatus'});
7984: foreach my $type (@inststatuses) {
7985: if (($type ne '') &&
7986: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
7987: $refused = '';
7988: }
7989: }
7990: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
7991: $refused = '';
7992: }
7993: }
7994: }
7995: }
7996: }
1.1017 raeburn 7997: }
7998: if ($refused) {
1.947 raeburn 7999: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
8000: ' '.$role.' '.$end.' '.$start.' by '.
8001: $env{'user.name'}.' at '.$env{'user.domain'});
8002: return 'refused';
8003: }
1.932 raeburn 8004: }
1.1131 raeburn 8005: } elsif ($role eq 'au') {
8006: if ($url ne '/'.$udom.'/') {
8007: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
8008: ' to assign author role for '.$uname.':'.$udom.
8009: ' in domain: '.$url.' refused (wrong domain).');
8010: return 'refused';
8011: }
1.104 www 8012: }
1.21 www 8013: $mrole=$role;
8014: }
1.620 albertel 8015: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 8016: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 8017: if ($end) { $command.='_'.$end; }
1.21 www 8018: if ($start) {
8019: if ($end) {
1.81 www 8020: $command.='_'.$start;
1.21 www 8021: } else {
1.81 www 8022: $command.='_0_'.$start;
1.21 www 8023: }
8024: }
1.739 raeburn 8025: my $origstart = $start;
8026: my $origend = $end;
1.957 raeburn 8027: my $delflag;
1.357 www 8028: # actually delete
8029: if ($deleteflag) {
1.373 www 8030: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 8031: # modify command to delete the role
1.620 albertel 8032: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 8033: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 8034: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 8035: # set start and finish to negative values for userrolelog
8036: $start=-1;
8037: $end=-1;
1.957 raeburn 8038: $delflag = 1;
1.357 www 8039: }
8040: }
8041: # send command
1.349 www 8042: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 8043: # log new user role if status is ok
1.349 www 8044: if ($answer eq 'ok') {
1.663 raeburn 8045: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1184 raeburn 8046: if (($role eq 'cc') || ($role eq 'in') ||
8047: ($role eq 'ep') || ($role eq 'ad') ||
8048: ($role eq 'ta') || ($role eq 'st') ||
8049: ($role=~/^cr/) || ($role eq 'gr') ||
8050: ($role eq 'co')) {
1.1200 raeburn 8051: # for course roles, perform group memberships changes triggered by role change.
8052: unless ($role =~ /^gr/) {
8053: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
8054: $origstart,$selfenroll,$context);
8055: }
1.1184 raeburn 8056: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8057: $selfenroll,$context);
8058: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
8059: ($role eq 'au') || ($role eq 'dc')) {
8060: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8061: $context);
8062: } elsif (($role eq 'ca') || ($role eq 'aa')) {
8063: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8064: $context);
8065: }
1.1053 raeburn 8066: if ($role eq 'cc') {
8067: &autoupdate_coowners($url,$end,$start,$uname,$udom);
8068: }
1.349 www 8069: }
8070: return $answer;
1.169 harris41 8071: }
8072:
1.1053 raeburn 8073: sub autoupdate_coowners {
8074: my ($url,$end,$start,$uname,$udom) = @_;
8075: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
8076: if (($cdom ne '') && ($cnum ne '')) {
8077: my $now = time;
8078: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
8079: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
8080: my %coursehash = &coursedescription($cdom.'_'.$cnum);
8081: my $instcode = $coursehash{'internal.coursecode'};
8082: if ($instcode ne '') {
1.1056 raeburn 8083: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
8084: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 8085: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 8086: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
8087: if ($result eq 'valid') {
8088: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 8089: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8090: push(@newcoowners,$coowner);
8091: }
8092: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
8093: push(@newcoowners,$uname.':'.$udom);
8094: }
8095: @newcoowners = sort(@newcoowners);
8096: } else {
8097: push(@newcoowners,$uname.':'.$udom);
8098: }
8099: } else {
8100: if ($coursehash{'internal.co-owners'}) {
8101: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8102: unless ($coowner eq $uname.':'.$udom) {
8103: push(@newcoowners,$coowner);
8104: }
8105: }
8106: unless (@newcoowners > 0) {
8107: $delcoowners = 1;
8108: $coowners = '';
8109: }
8110: }
8111: }
8112: if (@newcoowners || $delcoowners) {
8113: &store_coowners($cdom,$cnum,$coursehash{'home'},
8114: $delcoowners,@newcoowners);
8115: }
8116: }
8117: }
8118: }
8119: }
8120: }
8121: }
8122:
8123: sub store_coowners {
8124: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
8125: my $cid = $cdom.'_'.$cnum;
8126: my ($coowners,$delresult,$putresult);
8127: if (@newcoowners) {
8128: $coowners = join(',',@newcoowners);
8129: my %coownershash = (
8130: 'internal.co-owners' => $coowners,
8131: );
8132: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
8133: if ($putresult eq 'ok') {
8134: if ($env{'course.'.$cid.'.num'} eq $cnum) {
8135: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
8136: }
8137: }
8138: }
8139: if ($delcoowners) {
8140: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
8141: if ($delresult eq 'ok') {
8142: if ($env{'course.'.$cid.'.internal.co-owners'}) {
8143: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
8144: }
8145: }
8146: }
8147: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
8148: my %crsinfo =
8149: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
8150: if (ref($crsinfo{$cid}) eq 'HASH') {
8151: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
8152: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
8153: }
8154: }
8155: }
8156:
1.169 harris41 8157: # -------------------------------------------------- Modify user authentication
1.197 www 8158: # Overrides without validation
8159:
1.169 harris41 8160: sub modifyuserauth {
8161: my ($udom,$uname,$umode,$upass)=@_;
8162: my $uhome=&homeserver($uname,$udom);
1.197 www 8163: unless (&allowed('mau',$udom)) { return 'refused'; }
8164: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 8165: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8166: ' in domain '.$env{'request.role.domain'});
1.169 harris41 8167: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
8168: &escape($upass),$uhome);
1.620 albertel 8169: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 8170: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
8171: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
8172: &log($udom,,$uname,$uhome,
1.620 albertel 8173: 'Authentication changed by '.$env{'user.domain'}.', '.
8174: $env{'user.name'}.', '.$umode.
1.197 www 8175: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 8176: unless ($reply eq 'ok') {
1.197 www 8177: &logthis('Authentication mode error: '.$reply);
1.169 harris41 8178: return 'error: '.$reply;
8179: }
1.170 harris41 8180: return 'ok';
1.80 www 8181: }
8182:
1.81 www 8183: # --------------------------------------------------------------- Modify a user
1.80 www 8184:
1.81 www 8185: sub modifyuser {
1.206 matthew 8186: my ($udom, $uname, $uid,
8187: $umode, $upass, $first,
8188: $middle, $last, $gene,
1.1058 raeburn 8189: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 8190: $udom= &LONCAPA::clean_domain($udom);
8191: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 8192: my $showcandelete = 'none';
8193: if (ref($candelete) eq 'ARRAY') {
8194: if (@{$candelete} > 0) {
8195: $showcandelete = join(', ',@{$candelete});
8196: }
8197: }
1.81 www 8198: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 8199: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 8200: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 8201: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
8202: ' desiredhome not specified').
1.620 albertel 8203: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8204: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 8205: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 8206: my $newuser;
8207: if ($uhome eq 'no_host') {
8208: $newuser = 1;
8209: }
1.80 www 8210: # ----------------------------------------------------------------- Create User
1.406 albertel 8211: if (($uhome eq 'no_host') &&
8212: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 8213: my $unhome='';
1.844 albertel 8214: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 8215: $unhome = $desiredhome;
1.620 albertel 8216: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
8217: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 8218: } else { # load balancing routine for determining $unhome
1.81 www 8219: my $loadm=10000000;
1.841 albertel 8220: my %servers = &get_servers($udom,'library');
8221: foreach my $tryserver (keys(%servers)) {
8222: my $answer=reply('load',$tryserver);
8223: if (($answer=~/\d+/) && ($answer<$loadm)) {
8224: $loadm=$answer;
8225: $unhome=$tryserver;
8226: }
1.80 www 8227: }
8228: }
8229: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 8230: return 'error: unable to find a home server for '.$uname.
8231: ' in domain '.$udom;
1.80 www 8232: }
8233: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
8234: &escape($upass),$unhome);
8235: unless ($reply eq 'ok') {
8236: return 'error: '.$reply;
8237: }
1.230 stredwic 8238: $uhome=&homeserver($uname,$udom,'true');
1.80 www 8239: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 8240: return 'error: unable verify users home machine.';
1.80 www 8241: }
1.209 matthew 8242: } # End of creation of new user
1.80 www 8243: # ---------------------------------------------------------------------- Add ID
8244: if ($uid) {
8245: $uid=~tr/A-Z/a-z/;
8246: my %uidhash=&idrget($udom,$uname);
1.196 www 8247: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
8248: && (!$forceid)) {
1.80 www 8249: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 8250: return 'error: user id "'.$uid.'" does not match '.
8251: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 8252: }
8253: } else {
8254: &idput($udom,($uname => $uid));
8255: }
8256: }
8257: # -------------------------------------------------------------- Add names, etc
1.313 matthew 8258: my @tmp=&get('environment',
1.899 raeburn 8259: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 8260: 'permanentemail','inststatus'],
1.134 albertel 8261: $udom,$uname);
1.1075 raeburn 8262: my (%names,%oldnames);
1.313 matthew 8263: if ($tmp[0] =~ m/^error:.*/) {
8264: %names=();
8265: } else {
8266: %names = @tmp;
1.1075 raeburn 8267: %oldnames = %names;
1.313 matthew 8268: }
1.388 www 8269: #
1.1058 raeburn 8270: # If name, email and/or uid are blank (e.g., because an uploaded file
8271: # of users did not contain them), do not overwrite existing values
8272: # unless field is in $candelete array ref.
8273: #
8274:
8275: my @fields = ('firstname','middlename','lastname','generation',
8276: 'permanentemail','id');
8277: my %newvalues;
8278: if (ref($candelete) eq 'ARRAY') {
8279: foreach my $field (@fields) {
8280: if (grep(/^\Q$field\E$/,@{$candelete})) {
8281: if ($field eq 'firstname') {
8282: $names{$field} = $first;
8283: } elsif ($field eq 'middlename') {
8284: $names{$field} = $middle;
8285: } elsif ($field eq 'lastname') {
8286: $names{$field} = $last;
8287: } elsif ($field eq 'generation') {
8288: $names{$field} = $gene;
8289: } elsif ($field eq 'permanentemail') {
8290: $names{$field} = $email;
8291: } elsif ($field eq 'id') {
8292: $names{$field} = $uid;
8293: }
8294: }
8295: }
8296: }
1.388 www 8297: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 8298: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 8299: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 8300: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 8301: if ($email) {
8302: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 8303: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 8304: }
1.899 raeburn 8305: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 8306: if (defined($inststatus)) {
8307: $names{'inststatus'} = '';
8308: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
8309: if (ref($usertypes) eq 'HASH') {
8310: my @okstatuses;
8311: foreach my $item (split(/:/,$inststatus)) {
8312: if (defined($usertypes->{$item})) {
8313: push(@okstatuses,$item);
8314: }
8315: }
8316: if (@okstatuses) {
8317: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
8318: }
8319: }
8320: }
1.1075 raeburn 8321: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 8322: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 8323: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 8324: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
8325: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
8326: } else {
8327: $logmsg .= ' during self creation';
8328: }
1.1075 raeburn 8329: my $changed;
8330: if ($newuser) {
8331: $changed = 1;
8332: } else {
8333: foreach my $field (@fields) {
8334: if ($names{$field} ne $oldnames{$field}) {
8335: $changed = 1;
8336: last;
8337: }
8338: }
8339: }
8340: unless ($changed) {
8341: $logmsg = 'No changes in user information needed for: '.$logmsg;
8342: &logthis($logmsg);
8343: return 'ok';
8344: }
8345: my $reply = &put('environment', \%names, $udom,$uname);
8346: if ($reply ne 'ok') {
8347: return 'error: '.$reply;
8348: }
1.1087 raeburn 8349: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
8350: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
8351: }
1.1075 raeburn 8352: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
8353: &devalidate_cache_new('namescache',$uname.':'.$udom);
8354: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 8355: &logthis($logmsg);
1.134 albertel 8356: return 'ok';
1.80 www 8357: }
8358:
1.81 www 8359: # -------------------------------------------------------------- Modify student
1.80 www 8360:
1.81 www 8361: sub modifystudent {
8362: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 8363: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 8364: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 8365: if (!$cid) {
1.620 albertel 8366: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8367: return 'not_in_class';
8368: }
1.80 www 8369: }
8370: # --------------------------------------------------------------- Make the user
1.81 www 8371: my $reply=&modifyuser
1.209 matthew 8372: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 8373: $desiredhome,$email,$inststatus);
1.80 www 8374: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 8375: # This will cause &modify_student_enrollment to get the uid from the
8376: # students environment
8377: $uid = undef if (!$forceid);
1.455 albertel 8378: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 8379: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 8380: return $reply;
8381: }
8382:
8383: sub modify_student_enrollment {
1.957 raeburn 8384: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 8385: my ($cdom,$cnum,$chome);
8386: if (!$cid) {
1.620 albertel 8387: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8388: return 'not_in_class';
8389: }
1.620 albertel 8390: $cdom=$env{'course.'.$cid.'.domain'};
8391: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 8392: } else {
8393: ($cdom,$cnum)=split(/_/,$cid);
8394: }
1.620 albertel 8395: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 8396: if (!$chome) {
1.457 raeburn 8397: $chome=&homeserver($cnum,$cdom);
1.297 matthew 8398: }
1.455 albertel 8399: if (!$chome) { return 'unknown_course'; }
1.297 matthew 8400: # Make sure the user exists
1.81 www 8401: my $uhome=&homeserver($uname,$udom);
8402: if (($uhome eq '') || ($uhome eq 'no_host')) {
8403: return 'error: no such user';
8404: }
1.297 matthew 8405: # Get student data if we were not given enough information
8406: if (!defined($first) || $first eq '' ||
8407: !defined($last) || $last eq '' ||
8408: !defined($uid) || $uid eq '' ||
8409: !defined($middle) || $middle eq '' ||
8410: !defined($gene) || $gene eq '') {
1.294 matthew 8411: # They did not supply us with enough data to enroll the student, so
8412: # we need to pick up more information.
1.297 matthew 8413: my %tmp = &get('environment',
1.294 matthew 8414: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 8415: ,$udom,$uname);
8416:
1.800 albertel 8417: #foreach my $key (keys(%tmp)) {
8418: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 8419: #}
1.294 matthew 8420: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
8421: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
8422: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 8423: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 8424: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
8425: }
1.556 albertel 8426: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 8427: my $user = "$uname:$udom";
8428: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 8429: my $reply=cput('classlist',
1.1148 raeburn 8430: {$user =>
1.515 raeburn 8431: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 8432: $cdom,$cnum);
1.1148 raeburn 8433: if (($reply eq 'ok') || ($reply eq 'delayed')) {
8434: &devalidate_getsection_cache($udom,$uname,$cid);
8435: } else {
1.81 www 8436: return 'error: '.$reply;
8437: }
1.297 matthew 8438: # Add student role to user
1.83 www 8439: my $uurl='/'.$cid;
1.81 www 8440: $uurl=~s/\_/\//g;
8441: if ($usec) {
8442: $uurl.='/'.$usec;
8443: }
1.1148 raeburn 8444: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
8445: $selfenroll,$context);
8446: if ($result ne 'ok') {
8447: if ($old_entry{$user} ne '') {
8448: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
8449: } else {
8450: $reply = &del('classlist',[$user],$cdom,$cnum);
8451: }
8452: }
8453: return $result;
1.21 www 8454: }
8455:
1.556 albertel 8456: sub format_name {
8457: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
8458: my $name;
8459: if ($first ne 'lastname') {
8460: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
8461: } else {
8462: if ($lastname=~/\S/) {
8463: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
8464: $name=~s/\s+,/,/;
8465: } else {
8466: $name.= $firstname.' '.$middlename.' '.$generation;
8467: }
8468: }
8469: $name=~s/^\s+//;
8470: $name=~s/\s+$//;
8471: $name=~s/\s+/ /g;
8472: return $name;
8473: }
8474:
1.84 www 8475: # ------------------------------------------------- Write to course preferences
8476:
8477: sub writecoursepref {
8478: my ($courseid,%prefs)=@_;
8479: $courseid=~s/^\///;
8480: $courseid=~s/\_/\//g;
8481: my ($cdomain,$cnum)=split(/\//,$courseid);
8482: my $chome=homeserver($cnum,$cdomain);
8483: if (($chome eq '') || ($chome eq 'no_host')) {
8484: return 'error: no such course';
8485: }
8486: my $cstring='';
1.800 albertel 8487: foreach my $pref (keys(%prefs)) {
8488: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 8489: }
1.84 www 8490: $cstring=~s/\&$//;
8491: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
8492: }
8493:
8494: # ---------------------------------------------------------- Make/modify course
8495:
8496: sub createcourse {
1.741 raeburn 8497: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 8498: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 8499: $url=&declutter($url);
8500: my $cid='';
1.1028 raeburn 8501: if ($context eq 'requestcourses') {
8502: my $can_create = 0;
8503: my ($ownername,$ownerdom) = split(':',$course_owner);
8504: if ($udom eq $ownerdom) {
8505: if (&usertools_access($ownername,$ownerdom,$category,undef,
8506: $context)) {
8507: $can_create = 1;
8508: }
8509: } else {
8510: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
8511: $category);
8512: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
8513: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
8514: if (@curr > 0) {
8515: my @options = qw(approval validate autolimit);
8516: my $optregex = join('|',@options);
8517: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
8518: $can_create = 1;
8519: }
8520: }
8521: }
8522: }
8523: if ($can_create) {
8524: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
8525: unless (&allowed('ccc',$udom)) {
8526: return 'refused';
8527: }
1.1017 raeburn 8528: }
8529: } else {
8530: return 'refused';
8531: }
1.1028 raeburn 8532: } elsif (!&allowed('ccc',$udom)) {
8533: return 'refused';
1.84 www 8534: }
1.1011 raeburn 8535: # --------------------------------------------------------------- Get Unique ID
8536: my $uname;
8537: if ($cnum =~ /^$match_courseid$/) {
8538: my $chome=&homeserver($cnum,$udom,'true');
8539: if (($chome eq '') || ($chome eq 'no_host')) {
8540: $uname = $cnum;
8541: } else {
1.1038 raeburn 8542: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8543: }
8544: } else {
1.1038 raeburn 8545: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8546: }
8547: return $uname if ($uname =~ /^error/);
8548: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 8549: if (!defined($course_server)) {
8550: if (defined(&domain($udom,'primary'))) {
8551: $course_server = &domain($udom,'primary');
8552: } else {
8553: $course_server = $env{'user.home'};
8554: }
8555: }
8556: my %host_servers =
8557: &Apache::lonnet::get_servers($udom,'library');
8558: unless ($host_servers{$course_server}) {
8559: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 8560: }
1.84 www 8561: # ------------------------------------------------------------- Make the course
8562: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 8563: $course_server);
1.84 www 8564: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 8565: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 8566: if (($uhome eq '') || ($uhome eq 'no_host')) {
8567: return 'error: no such course';
8568: }
1.271 www 8569: # ----------------------------------------------------------------- Course made
1.516 raeburn 8570: # log existence
1.1029 raeburn 8571: my $now = time;
1.918 raeburn 8572: my $newcourse = {
8573: $udom.'_'.$uname => {
1.921 raeburn 8574: description => $description,
8575: inst_code => $inst_code,
8576: owner => $course_owner,
8577: type => $crstype,
1.1029 raeburn 8578: creator => $env{'user.name'}.':'.
8579: $env{'user.domain'},
8580: created => $now,
8581: context => $context,
1.918 raeburn 8582: },
8583: };
1.921 raeburn 8584: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 8585: # set toplevel url
1.271 www 8586: my $topurl=$url;
8587: unless ($nonstandard) {
8588: # ------------------------------------------ For standard courses, make top url
8589: my $mapurl=&clutter($url);
1.278 www 8590: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 8591: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 8592: <map>
8593: <resource id="1" type="start"></resource>
8594: <resource id="2" src="$mapurl"></resource>
8595: <resource id="3" type="finish"></resource>
8596: <link index="1" from="1" to="2"></link>
8597: <link index="2" from="2" to="3"></link>
8598: </map>
8599: ENDINITMAP
8600: $topurl=&declutter(
1.638 albertel 8601: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 8602: );
8603: }
8604: # ----------------------------------------------------------- Write preferences
1.84 www 8605: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 8606: ('description' => $description,
8607: 'url' => $topurl,
8608: 'internal.creator' => $env{'user.name'}.':'.
8609: $env{'user.domain'},
8610: 'internal.created' => $now,
8611: 'internal.creationcontext' => $context)
8612: );
1.84 www 8613: return '/'.$udom.'/'.$uname;
8614: }
8615:
1.1011 raeburn 8616: # ------------------------------------------------------------------- Create ID
8617: sub generate_coursenum {
1.1038 raeburn 8618: my ($udom,$crstype) = @_;
1.1011 raeburn 8619: my $domdesc = &domain($udom);
8620: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 8621: my $first;
8622: if ($crstype eq 'Community') {
8623: $first = '0';
8624: } else {
8625: $first = int(1+rand(9));
8626: }
8627: my $uname=$first.
1.1011 raeburn 8628: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8629: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8630: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8631: # ----------------------------------------------- Make sure that does not exist
8632: my $uhome=&homeserver($uname,$udom,'true');
8633: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 8634: if ($crstype eq 'Community') {
8635: $first = '0';
8636: } else {
8637: $first = int(1+rand(9));
8638: }
8639: $uname=$first.
1.1011 raeburn 8640: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8641: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8642: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8643: $uhome=&homeserver($uname,$udom,'true');
8644: unless (($uhome eq '') || ($uhome eq 'no_host')) {
8645: return 'error: unable to generate unique course-ID';
8646: }
8647: }
8648: return $uname;
8649: }
8650:
1.813 albertel 8651: sub is_course {
1.1167 droeschl 8652: my ($cdom, $cnum) = scalar(@_) == 1 ?
8653: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
8654:
8655: return unless $cdom and $cnum;
8656:
8657: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
8658: '.');
8659:
8660: return unless exists($courses{$cdom.'_'.$cnum});
8661: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 8662: }
8663:
1.1015 raeburn 8664: sub store_userdata {
8665: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 8666: my $result;
1.1016 raeburn 8667: if ($datakey ne '') {
1.1013 raeburn 8668: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 8669: if ($udom eq '' || $uname eq '') {
8670: $udom = $env{'user.domain'};
8671: $uname = $env{'user.name'};
8672: }
8673: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 8674: if (($uhome eq '') || ($uhome eq 'no_host')) {
8675: $result = 'error: no_host';
8676: } else {
8677: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
8678: $storehash->{'host'} = $perlvar{'lonHostID'};
8679:
8680: my $namevalue='';
8681: foreach my $key (keys(%{$storehash})) {
8682: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
8683: }
8684: $namevalue=~s/\&$//;
1.1105 raeburn 8685: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
8686: $namevalue,$uhome);
1.1013 raeburn 8687: }
8688: } else {
8689: $result = 'error: data to store was not a hash reference';
8690: }
8691: } else {
8692: $result= 'error: invalid requestkey';
8693: }
8694: return $result;
8695: }
8696:
1.21 www 8697: # ---------------------------------------------------------- Assign Custom Role
8698:
8699: sub assigncustomrole {
1.957 raeburn 8700: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8701: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 8702: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 8703: }
8704:
8705: # ----------------------------------------------------------------- Revoke Role
8706:
8707: sub revokerole {
1.957 raeburn 8708: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8709: my $now=time;
1.965 raeburn 8710: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 8711: }
8712:
8713: # ---------------------------------------------------------- Revoke Custom Role
8714:
8715: sub revokecustomrole {
1.957 raeburn 8716: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8717: my $now=time;
1.357 www 8718: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 8719: $deleteflag,$selfenroll,$context);
1.17 www 8720: }
8721:
1.533 banghart 8722: # ------------------------------------------------------------ Disk usage
1.535 albertel 8723: sub diskusage {
1.955 raeburn 8724: my ($udom,$uname,$directorypath,$getpropath)=@_;
8725: $directorypath =~ s/\/$//;
8726: my $listing=&reply('du2:'.&escape($directorypath).':'
8727: .&escape($getpropath).':'.&escape($uname).':'
8728: .&escape($udom),homeserver($uname,$udom));
8729: if ($listing eq 'unknown_cmd') {
8730: if ($getpropath) {
8731: $directorypath = &propath($udom,$uname).'/'.$directorypath;
8732: }
8733: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
8734: }
1.514 albertel 8735: return $listing;
1.512 banghart 8736: }
8737:
1.566 banghart 8738: sub is_locked {
1.1096 raeburn 8739: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 8740: my @check;
8741: my $is_locked;
1.1093 raeburn 8742: push (@check,$file_name);
1.613 albertel 8743: my %locked = &get('file_permissions',\@check,
1.620 albertel 8744: $env{'user.domain'},$env{'user.name'});
1.615 albertel 8745: my ($tmp)=keys(%locked);
8746: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 8747:
1.566 banghart 8748: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 8749: $is_locked = 'false';
8750: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 8751: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 8752: $is_locked = 'true';
1.1096 raeburn 8753: if (ref($which) eq 'ARRAY') {
8754: push(@{$which},$entry);
8755: } else {
8756: last;
8757: }
1.745 raeburn 8758: }
8759: }
1.566 banghart 8760: } else {
8761: $is_locked = 'false';
8762: }
1.1093 raeburn 8763: return $is_locked;
1.566 banghart 8764: }
8765:
1.759 albertel 8766: sub declutter_portfile {
8767: my ($file) = @_;
1.833 albertel 8768: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 8769: return $file;
8770: }
8771:
1.559 banghart 8772: # ------------------------------------------------------------- Mark as Read Only
8773:
8774: sub mark_as_readonly {
8775: my ($domain,$user,$files,$what) = @_;
1.613 albertel 8776: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8777: my ($tmp)=keys(%current_permissions);
8778: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 8779: foreach my $file (@{$files}) {
1.759 albertel 8780: $file = &declutter_portfile($file);
1.561 banghart 8781: push(@{$current_permissions{$file}},$what);
1.559 banghart 8782: }
1.613 albertel 8783: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 8784: return;
8785: }
8786:
1.572 banghart 8787: # ------------------------------------------------------------Save Selected Files
8788:
8789: sub save_selected_files {
8790: my ($user, $path, @files) = @_;
8791: my $filename = $user."savedfiles";
1.573 banghart 8792: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 8793: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 8794: foreach my $file (@files) {
1.620 albertel 8795: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 8796: }
8797: foreach my $file (@other_files) {
1.574 banghart 8798: print (OUT $file."\n");
1.572 banghart 8799: }
1.574 banghart 8800: close (OUT);
1.572 banghart 8801: return 'ok';
8802: }
8803:
1.574 banghart 8804: sub clear_selected_files {
8805: my ($user) = @_;
8806: my $filename = $user."savedfiles";
1.1117 foxr 8807: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 8808: print (OUT undef);
8809: close (OUT);
8810: return ("ok");
8811: }
8812:
1.572 banghart 8813: sub files_in_path {
8814: my ($user, $path) = @_;
8815: my $filename = $user."savedfiles";
8816: my %return_files;
1.1117 foxr 8817: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 8818: while (my $line_in = <IN>) {
1.574 banghart 8819: chomp ($line_in);
8820: my @paths_and_file = split (m!/!, $line_in);
8821: my $file_part = pop (@paths_and_file);
8822: my $path_part = join ('/', @paths_and_file);
1.573 banghart 8823: $path_part.='/';
8824: my $path_and_file = $path_part.$file_part;
8825: if ($path_part eq $path) {
8826: $return_files{$file_part}= 'selected';
8827: }
8828: }
1.574 banghart 8829: close (IN);
8830: return (\%return_files);
1.572 banghart 8831: }
8832:
8833: # called in portfolio select mode, to show files selected NOT in current directory
8834: sub files_not_in_path {
8835: my ($user, $path) = @_;
8836: my $filename = $user."savedfiles";
8837: my @return_files;
8838: my $path_part;
1.1117 foxr 8839: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 8840: while (my $line = <IN>) {
1.572 banghart 8841: #ok, I know it's clunky, but I want it to work
1.800 albertel 8842: my @paths_and_file = split(m|/|, $line);
8843: my $file_part = pop(@paths_and_file);
8844: chomp($file_part);
8845: my $path_part = join('/', @paths_and_file);
1.572 banghart 8846: $path_part .= '/';
8847: my $path_and_file = $path_part.$file_part;
8848: if ($path_part ne $path) {
1.800 albertel 8849: push(@return_files, ($path_and_file));
1.572 banghart 8850: }
8851: }
1.800 albertel 8852: close(OUT);
1.574 banghart 8853: return (@return_files);
1.572 banghart 8854: }
8855:
1.745 raeburn 8856: #----------------------------------------------Get portfolio file permissions
1.629 banghart 8857:
1.745 raeburn 8858: sub get_portfile_permissions {
8859: my ($domain,$user) = @_;
1.613 albertel 8860: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8861: my ($tmp)=keys(%current_permissions);
8862: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 8863: return \%current_permissions;
8864: }
8865:
8866: #---------------------------------------------Get portfolio file access controls
8867:
1.749 raeburn 8868: sub get_access_controls {
1.745 raeburn 8869: my ($current_permissions,$group,$file) = @_;
1.769 albertel 8870: my %access;
8871: my $real_file = $file;
8872: $file =~ s/\.meta$//;
1.745 raeburn 8873: if (defined($file)) {
1.749 raeburn 8874: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
8875: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 8876: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 8877: }
8878: }
1.745 raeburn 8879: } else {
1.749 raeburn 8880: foreach my $key (keys(%{$current_permissions})) {
8881: if ($key =~ /\0accesscontrol$/) {
8882: if (defined($group)) {
8883: if ($key !~ m-^\Q$group\E/-) {
8884: next;
8885: }
8886: }
8887: my ($fullpath) = split(/\0/,$key);
8888: if (ref($$current_permissions{$key}) eq 'HASH') {
8889: foreach my $control (keys(%{$$current_permissions{$key}})) {
8890: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
8891: }
8892: }
8893: }
8894: }
8895: }
8896: return %access;
8897: }
8898:
8899: sub modify_access_controls {
8900: my ($file_name,$changes,$domain,$user)=@_;
8901: my ($outcome,$deloutcome);
8902: my %store_permissions;
8903: my %new_values;
8904: my %new_control;
8905: my %translation;
8906: my @deletions = ();
8907: my $now = time;
8908: if (exists($$changes{'activate'})) {
8909: if (ref($$changes{'activate'}) eq 'HASH') {
8910: my @newitems = sort(keys(%{$$changes{'activate'}}));
8911: my $numnew = scalar(@newitems);
8912: for (my $i=0; $i<$numnew; $i++) {
8913: my $newkey = $newitems[$i];
8914: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 8915: if ($newkey =~ /^\d+:/) {
8916: $newkey =~ s/^(\d+)/$newid/;
8917: $translation{$1} = $newid;
8918: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
8919: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
8920: $translation{$1} = $newid;
8921: }
1.749 raeburn 8922: $new_values{$file_name."\0".$newkey} =
8923: $$changes{'activate'}{$newitems[$i]};
8924: $new_control{$newkey} = $now;
8925: }
8926: }
8927: }
8928: my %todelete;
8929: my %changed_items;
8930: foreach my $action ('delete','update') {
8931: if (exists($$changes{$action})) {
8932: if (ref($$changes{$action}) eq 'HASH') {
8933: foreach my $key (keys(%{$$changes{$action}})) {
8934: my ($itemnum) = ($key =~ /^([^:]+):/);
8935: if ($action eq 'delete') {
8936: $todelete{$itemnum} = 1;
8937: } else {
8938: $changed_items{$itemnum} = $key;
8939: }
8940: }
1.745 raeburn 8941: }
8942: }
1.749 raeburn 8943: }
8944: # get lock on access controls for file.
8945: my $lockhash = {
8946: $file_name."\0".'locked_access_records' => $env{'user.name'}.
8947: ':'.$env{'user.domain'},
8948: };
8949: my $tries = 0;
8950: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8951:
8952: while (($gotlock ne 'ok') && $tries <3) {
8953: $tries ++;
8954: sleep 1;
8955: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8956: }
8957: if ($gotlock eq 'ok') {
8958: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
8959: my ($tmp)=keys(%curr_permissions);
8960: if ($tmp=~/^error:/) { undef(%curr_permissions); }
8961: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
8962: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
8963: if (ref($curr_controls) eq 'HASH') {
8964: foreach my $control_item (keys(%{$curr_controls})) {
8965: my ($itemnum) = ($control_item =~ /^([^:]+):/);
8966: if (defined($todelete{$itemnum})) {
8967: push(@deletions,$file_name."\0".$control_item);
8968: } else {
8969: if (defined($changed_items{$itemnum})) {
8970: $new_control{$changed_items{$itemnum}} = $now;
8971: push(@deletions,$file_name."\0".$control_item);
8972: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
8973: } else {
8974: $new_control{$control_item} = $$curr_controls{$control_item};
8975: }
8976: }
1.745 raeburn 8977: }
8978: }
8979: }
1.970 raeburn 8980: my ($group);
8981: if (&is_course($domain,$user)) {
8982: ($group,my $file) = split(/\//,$file_name,2);
8983: }
1.749 raeburn 8984: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
8985: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
8986: $outcome = &put('file_permissions',\%new_values,$domain,$user);
8987: # remove lock
8988: my @del_lock = ($file_name."\0".'locked_access_records');
8989: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 8990: my $sqlresult =
1.970 raeburn 8991: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 8992: $group);
1.749 raeburn 8993: } else {
8994: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 8995: }
1.749 raeburn 8996: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 8997: }
8998:
1.827 raeburn 8999: sub make_public_indefinitely {
9000: my ($requrl) = @_;
9001: my $now = time;
9002: my $action = 'activate';
9003: my $aclnum = 0;
9004: if (&is_portfolio_url($requrl)) {
9005: my (undef,$udom,$unum,$file_name,$group) =
9006: &parse_portfolio_url($requrl);
9007: my $current_perms = &get_portfile_permissions($udom,$unum);
9008: my %access_controls = &get_access_controls($current_perms,
9009: $group,$file_name);
9010: foreach my $key (keys(%{$access_controls{$file_name}})) {
9011: my ($num,$scope,$end,$start) =
9012: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
9013: if ($scope eq 'public') {
9014: if ($start <= $now && $end == 0) {
9015: $action = 'none';
9016: } else {
9017: $action = 'update';
9018: $aclnum = $num;
9019: }
9020: last;
9021: }
9022: }
9023: if ($action eq 'none') {
9024: return 'ok';
9025: } else {
9026: my %changes;
9027: my $newend = 0;
9028: my $newstart = $now;
9029: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
9030: $changes{$action}{$newkey} = {
9031: type => 'public',
9032: time => {
9033: start => $newstart,
9034: end => $newend,
9035: },
9036: };
9037: my ($outcome,$deloutcome,$new_values,$translation) =
9038: &modify_access_controls($file_name,\%changes,$udom,$unum);
9039: return $outcome;
9040: }
9041: } else {
9042: return 'invalid';
9043: }
9044: }
9045:
1.745 raeburn 9046: #------------------------------------------------------Get Marked as Read Only
9047:
9048: sub get_marked_as_readonly {
9049: my ($domain,$user,$what,$group) = @_;
9050: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 9051: my @readonly_files;
1.629 banghart 9052: my $cmp1=$what;
9053: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 9054: while (my ($file_name,$value) = each(%{$current_permissions})) {
9055: if (defined($group)) {
9056: if ($file_name !~ m-^\Q$group\E/-) {
9057: next;
9058: }
9059: }
1.561 banghart 9060: if (ref($value) eq "ARRAY"){
9061: foreach my $stored_what (@{$value}) {
1.629 banghart 9062: my $cmp2=$stored_what;
1.759 albertel 9063: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 9064: $cmp2=join('',@{$stored_what});
1.745 raeburn 9065: }
1.629 banghart 9066: if ($cmp1 eq $cmp2) {
1.561 banghart 9067: push(@readonly_files, $file_name);
1.745 raeburn 9068: last;
1.563 banghart 9069: } elsif (!defined($what)) {
9070: push(@readonly_files, $file_name);
1.745 raeburn 9071: last;
1.561 banghart 9072: }
9073: }
1.745 raeburn 9074: }
1.561 banghart 9075: }
9076: return @readonly_files;
9077: }
1.577 banghart 9078: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 9079:
1.577 banghart 9080: sub get_marked_as_readonly_hash {
1.745 raeburn 9081: my ($current_permissions,$group,$what) = @_;
1.577 banghart 9082: my %readonly_files;
1.745 raeburn 9083: while (my ($file_name,$value) = each(%{$current_permissions})) {
9084: if (defined($group)) {
9085: if ($file_name !~ m-^\Q$group\E/-) {
9086: next;
9087: }
9088: }
1.577 banghart 9089: if (ref($value) eq "ARRAY"){
9090: foreach my $stored_what (@{$value}) {
1.745 raeburn 9091: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 9092: foreach my $lock_descriptor(@{$stored_what}) {
9093: if ($lock_descriptor eq 'graded') {
9094: $readonly_files{$file_name} = 'graded';
9095: } elsif ($lock_descriptor eq 'handback') {
9096: $readonly_files{$file_name} = 'handback';
9097: } else {
9098: if (!exists($readonly_files{$file_name})) {
9099: $readonly_files{$file_name} = 'locked';
9100: }
9101: }
1.745 raeburn 9102: }
1.750 banghart 9103: }
1.577 banghart 9104: }
9105: }
9106: }
9107: return %readonly_files;
9108: }
1.559 banghart 9109: # ------------------------------------------------------------ Unmark as Read Only
9110:
9111: sub unmark_as_readonly {
1.629 banghart 9112: # unmarks $file_name (if $file_name is defined), or all files locked by $what
9113: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 9114: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 9115: $file_name = &declutter_portfile($file_name);
1.634 albertel 9116: my $symb_crs = $what;
9117: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 9118: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 9119: my ($tmp)=keys(%current_permissions);
9120: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9121: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 9122: foreach my $file (@readonly_files) {
1.759 albertel 9123: my $clean_file = &declutter_portfile($file);
9124: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 9125: my $current_locks = $current_permissions{$file};
1.563 banghart 9126: my @new_locks;
9127: my @del_keys;
9128: if (ref($current_locks) eq "ARRAY"){
9129: foreach my $locker (@{$current_locks}) {
1.632 albertel 9130: my $compare=$locker;
1.749 raeburn 9131: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 9132: $compare=join('',@{$locker});
1.746 raeburn 9133: if ($compare ne $symb_crs) {
9134: push(@new_locks, $locker);
9135: }
1.563 banghart 9136: }
9137: }
1.650 albertel 9138: if (scalar(@new_locks) > 0) {
1.563 banghart 9139: $current_permissions{$file} = \@new_locks;
9140: } else {
9141: push(@del_keys, $file);
1.613 albertel 9142: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 9143: delete($current_permissions{$file});
1.563 banghart 9144: }
9145: }
1.561 banghart 9146: }
1.613 albertel 9147: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9148: return;
9149: }
1.512 banghart 9150:
1.17 www 9151: # ------------------------------------------------------------ Directory lister
9152:
9153: sub dirlist {
1.955 raeburn 9154: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 9155: $uri=~s/^\///;
9156: $uri=~s/\/$//;
1.253 stredwic 9157: my ($udom, $uname);
1.955 raeburn 9158: if ($getuserdir) {
1.253 stredwic 9159: $udom = $userdomain;
9160: $uname = $username;
1.955 raeburn 9161: } else {
9162: (undef,$udom,$uname)=split(/\//,$uri);
9163: if(defined($userdomain)) {
9164: $udom = $userdomain;
9165: }
9166: if(defined($username)) {
9167: $uname = $username;
9168: }
1.253 stredwic 9169: }
1.955 raeburn 9170: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 9171:
1.955 raeburn 9172: $dirRoot = $perlvar{'lonDocRoot'};
9173: if (defined($getpropath)) {
9174: $dirRoot = &propath($udom,$uname);
1.253 stredwic 9175: $dirRoot =~ s/\/$//;
1.955 raeburn 9176: } elsif (defined($getuserdir)) {
9177: my $subdir=$uname.'__';
9178: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
9179: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
9180: ."/$udom/$subdir/$uname";
9181: } elsif (defined($alternateRoot)) {
9182: $dirRoot = $alternateRoot;
1.751 banghart 9183: }
1.253 stredwic 9184:
9185: if($udom) {
9186: if($uname) {
1.1135 raeburn 9187: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 9188: if ($uhome eq 'no_host') {
9189: return ([],'no_host');
9190: }
1.955 raeburn 9191: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 9192: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 9193: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 9194: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9195: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 9196: } else {
9197: @listing_results = map { &unescape($_); } split(/:/,$listing);
9198: }
1.605 matthew 9199: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9200: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 9201: @listing_results = split(/:/,$listing);
9202: } else {
9203: @listing_results = map { &unescape($_); } split(/:/,$listing);
9204: }
1.1135 raeburn 9205: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 9206: ($listing eq 'rejected') || ($listing eq 'refused') ||
9207: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9208: return ([],$listing);
9209: } else {
9210: return (\@listing_results);
1.1135 raeburn 9211: }
1.955 raeburn 9212: } elsif(!$alternateRoot) {
1.1136 raeburn 9213: my (%allusers,%listerror);
1.841 albertel 9214: my %servers = &get_servers($udom,'library');
1.955 raeburn 9215: foreach my $tryserver (keys(%servers)) {
9216: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
9217: &escape($udom),$tryserver);
9218: if ($listing eq 'unknown_cmd') {
9219: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
9220: $udom, $tryserver);
9221: } else {
9222: @listing_results = map { &unescape($_); } split(/:/,$listing);
9223: }
1.841 albertel 9224: if ($listing eq 'unknown_cmd') {
9225: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
9226: $udom, $tryserver);
9227: @listing_results = split(/:/,$listing);
9228: } else {
9229: @listing_results =
9230: map { &unescape($_); } split(/:/,$listing);
9231: }
1.1136 raeburn 9232: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
9233: ($listing eq 'rejected') || ($listing eq 'refused') ||
9234: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9235: $listerror{$tryserver} = $listing;
9236: } else {
1.841 albertel 9237: foreach my $line (@listing_results) {
9238: my ($entry) = split(/&/,$line,2);
9239: $allusers{$entry} = 1;
9240: }
9241: }
1.253 stredwic 9242: }
1.1136 raeburn 9243: my @alluserslist=();
1.800 albertel 9244: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 9245: push(@alluserslist,$user.'&user');
1.253 stredwic 9246: }
1.1136 raeburn 9247: return (\@alluserslist);
1.253 stredwic 9248: } else {
1.1136 raeburn 9249: return ([],'missing username');
1.253 stredwic 9250: }
1.955 raeburn 9251: } elsif(!defined($getpropath)) {
1.1136 raeburn 9252: my $path = $perlvar{'lonDocRoot'}.'/res/';
9253: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
9254: return (\@all_domains);
1.955 raeburn 9255: } else {
1.1136 raeburn 9256: return ([],'missing domain');
1.275 stredwic 9257: }
9258: }
9259:
9260: # --------------------------------------------- GetFileTimestamp
9261: # This function utilizes dirlist and returns the date stamp for
9262: # when it was last modified. It will also return an error of -1
9263: # if an error occurs
9264:
9265: sub GetFileTimestamp {
1.955 raeburn 9266: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 9267: $studentDomain = &LONCAPA::clean_domain($studentDomain);
9268: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 9269: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
9270: undef,$getuserdir);
9271: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9272: return -1;
9273: }
9274: if (ref($fileref) eq 'ARRAY') {
9275: my @stats = split('&',$fileref->[0]);
1.375 matthew 9276: # @stats contains first the filename, then the stat output
9277: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 9278: } else {
9279: return -1;
1.253 stredwic 9280: }
1.26 www 9281: }
9282:
1.712 albertel 9283: sub stat_file {
9284: my ($uri) = @_;
1.787 albertel 9285: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 9286:
1.955 raeburn 9287: my ($udom,$uname,$file);
1.712 albertel 9288: if ($uri =~ m-^/(uploaded|editupload)/-) {
9289: ($udom,$uname,$file) =
1.811 albertel 9290: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 9291: $file = 'userfiles/'.$file;
9292: }
9293: if ($uri =~ m-^/res/-) {
9294: ($udom,$uname) =
1.807 albertel 9295: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 9296: $file = $uri;
9297: }
9298:
9299: if (!$udom || !$uname || !$file) {
9300: # unable to handle the uri
9301: return ();
9302: }
1.956 raeburn 9303: my $getpropath;
9304: if ($file =~ /^userfiles\//) {
9305: $getpropath = 1;
9306: }
1.1136 raeburn 9307: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
9308: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9309: return ();
9310: } else {
9311: if (ref($listref) eq 'ARRAY') {
9312: my @stats = split('&',$listref->[0]);
9313: shift(@stats); #filename is first
9314: return @stats;
9315: }
1.712 albertel 9316: }
9317: return ();
9318: }
9319:
1.26 www 9320: # -------------------------------------------------------- Value of a Condition
9321:
1.713 albertel 9322: # gets the value of a specific preevaluated condition
9323: # stored in the string $env{user.state.<cid>}
9324: # or looks up a condition reference in the bighash and if if hasn't
9325: # already been evaluated recurses into docondval to get the value of
9326: # the condition, then memoizing it to
9327: # $env{user.state.<cid>.<condition>}
1.40 www 9328: sub directcondval {
9329: my $number=shift;
1.620 albertel 9330: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 9331: &Apache::lonuserstate::evalstate();
9332: }
1.713 albertel 9333: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
9334: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
9335: } elsif ($number =~ /^_/) {
9336: my $sub_condition;
9337: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9338: &GDBM_READER(),0640)) {
9339: $sub_condition=$bighash{'conditions'.$number};
9340: untie(%bighash);
9341: }
9342: my $value = &docondval($sub_condition);
1.949 raeburn 9343: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 9344: return $value;
9345: }
1.620 albertel 9346: if ($env{'user.state.'.$env{'request.course.id'}}) {
9347: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 9348: } else {
9349: return 2;
9350: }
9351: }
9352:
1.713 albertel 9353: # get the collection of conditions for this resource
1.26 www 9354: sub condval {
9355: my $condidx=shift;
1.54 www 9356: my $allpathcond='';
1.713 albertel 9357: foreach my $cond (split(/\|/,$condidx)) {
9358: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
9359: $allpathcond.=
9360: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
9361: }
1.191 harris41 9362: }
1.54 www 9363: $allpathcond=~s/\|$//;
1.713 albertel 9364: return &docondval($allpathcond);
9365: }
9366:
9367: #evaluates an expression of conditions
9368: sub docondval {
9369: my ($allpathcond) = @_;
9370: my $result=0;
9371: if ($env{'request.course.id'}
9372: && defined($allpathcond)) {
9373: my $operand='|';
9374: my @stack;
9375: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
9376: if ($chunk eq '(') {
9377: push @stack,($operand,$result);
9378: } elsif ($chunk eq ')') {
9379: my $before=pop @stack;
9380: if (pop @stack eq '&') {
9381: $result=$result>$before?$before:$result;
9382: } else {
9383: $result=$result>$before?$result:$before;
9384: }
9385: } elsif (($chunk eq '&') || ($chunk eq '|')) {
9386: $operand=$chunk;
9387: } else {
9388: my $new=directcondval($chunk);
9389: if ($operand eq '&') {
9390: $result=$result>$new?$new:$result;
9391: } else {
9392: $result=$result>$new?$result:$new;
9393: }
9394: }
9395: }
1.26 www 9396: }
9397: return $result;
1.421 albertel 9398: }
9399:
9400: # ---------------------------------------------------- Devalidate courseresdata
9401:
9402: sub devalidatecourseresdata {
9403: my ($coursenum,$coursedomain)=@_;
9404: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9405: &devalidate_cache_new('courseres',$hashid);
1.28 www 9406: }
9407:
1.763 www 9408:
1.200 www 9409: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 9410: #
9411: # Parameters:
9412: # $coursenum - Number of the course.
9413: # $coursedomain - Domain at which the course was created.
9414: # Returns:
9415: # A hash of the course parameters along (I think) with timestamps
9416: # and version info.
1.877 foxr 9417:
1.624 albertel 9418: sub get_courseresdata {
9419: my ($coursenum,$coursedomain)=@_;
1.200 www 9420: my $coursehom=&homeserver($coursenum,$coursedomain);
9421: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9422: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 9423: my %dumpreply;
1.417 albertel 9424: unless (defined($cached)) {
1.624 albertel 9425: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 9426: $result=\%dumpreply;
1.251 albertel 9427: my ($tmp) = keys(%dumpreply);
9428: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 9429: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 9430: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
9431: return $tmp;
1.416 albertel 9432: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 9433: $result=undef;
1.599 albertel 9434: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 9435: }
9436: }
1.624 albertel 9437: return $result;
9438: }
9439:
1.633 albertel 9440: sub devalidateuserresdata {
9441: my ($uname,$udom)=@_;
9442: my $hashid="$udom:$uname";
9443: &devalidate_cache_new('userres',$hashid);
9444: }
9445:
1.624 albertel 9446: sub get_userresdata {
9447: my ($uname,$udom)=@_;
9448: #most student don\'t have any data set, check if there is some data
9449: if (&EXT_cache_status($udom,$uname)) { return undef; }
9450:
9451: my $hashid="$udom:$uname";
9452: my ($result,$cached)=&is_cached_new('userres',$hashid);
9453: if (!defined($cached)) {
9454: my %resourcedata=&dump('resourcedata',$udom,$uname);
9455: $result=\%resourcedata;
9456: &do_cache_new('userres',$hashid,$result,600);
9457: }
9458: my ($tmp)=keys(%$result);
9459: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
9460: return $result;
9461: }
9462: #error 2 occurs when the .db doesn't exist
9463: if ($tmp!~/error: 2 /) {
1.672 albertel 9464: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 9465: " Trying to get resource data for ".
9466: $uname." at ".$udom.": ".
9467: $tmp."</font>");
9468: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 9469: #&EXT_cache_set($udom,$uname);
9470: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 9471: undef($tmp); # not really an error so don't send it back
1.624 albertel 9472: }
9473: return $tmp;
9474: }
1.879 foxr 9475: #----------------------------------------------- resdata - return resource data
9476: # Purpose:
9477: # Return resource data for either users or for a course.
9478: # Parameters:
9479: # $name - Course/user name.
9480: # $domain - Name of the domain the user/course is registered on.
9481: # $type - Type of thing $name is (must be 'course' or 'user'
9482: # @which - Array of names of resources desired.
9483: # Returns:
9484: # The value of the first reasource in @which that is found in the
9485: # resource hash.
9486: # Exceptional Conditions:
9487: # If the $type passed in is not valid (not the string 'course' or
9488: # 'user', an undefined reference is returned.
9489: # If none of the resources are found, an undef is returned
1.624 albertel 9490: sub resdata {
9491: my ($name,$domain,$type,@which)=@_;
9492: my $result;
9493: if ($type eq 'course') {
9494: $result=&get_courseresdata($name,$domain);
9495: } elsif ($type eq 'user') {
9496: $result=&get_userresdata($name,$domain);
9497: }
9498: if (!ref($result)) { return $result; }
1.251 albertel 9499: foreach my $item (@which) {
1.927 albertel 9500: if (defined($result->{$item->[0]})) {
9501: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 9502: }
1.250 albertel 9503: }
1.291 albertel 9504: return undef;
1.200 www 9505: }
9506:
1.379 matthew 9507: #
9508: # EXT resource caching routines
9509: #
9510:
9511: sub clear_EXT_cache_status {
1.383 albertel 9512: &delenv('cache.EXT.');
1.379 matthew 9513: }
9514:
9515: sub EXT_cache_status {
9516: my ($target_domain,$target_user) = @_;
1.383 albertel 9517: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 9518: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 9519: # We know already the user has no data
9520: return 1;
9521: } else {
9522: return 0;
9523: }
9524: }
9525:
9526: sub EXT_cache_set {
9527: my ($target_domain,$target_user) = @_;
1.383 albertel 9528: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 9529: #&appenv({$cachename => time});
1.379 matthew 9530: }
9531:
1.28 www 9532: # --------------------------------------------------------- Value of a Variable
1.58 www 9533: sub EXT {
1.715 albertel 9534:
1.395 albertel 9535: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 9536: unless ($varname) { return ''; }
1.218 albertel 9537: #get real user name/domain, courseid and symb
9538: my $courseid;
1.359 albertel 9539: my $publicuser;
1.427 www 9540: if ($symbparm) {
9541: $symbparm=&get_symb_from_alias($symbparm);
9542: }
1.218 albertel 9543: if (!($uname && $udom)) {
1.790 albertel 9544: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 9545: if (!$symbparm) { $symbparm=$cursymb; }
9546: } else {
1.620 albertel 9547: $courseid=$env{'request.course.id'};
1.218 albertel 9548: }
1.48 www 9549: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
9550: my $rest;
1.320 albertel 9551: if (defined($therest[0])) {
1.48 www 9552: $rest=join('.',@therest);
9553: } else {
9554: $rest='';
9555: }
1.320 albertel 9556:
1.57 www 9557: my $qualifierrest=$qualifier;
9558: if ($rest) { $qualifierrest.='.'.$rest; }
9559: my $spacequalifierrest=$space;
9560: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 9561: if ($realm eq 'user') {
1.48 www 9562: # --------------------------------------------------------------- user.resource
9563: if ($space eq 'resource') {
1.651 albertel 9564: if ( (defined($Apache::lonhomework::parsing_a_problem)
9565: || defined($Apache::lonhomework::parsing_a_task))
9566: &&
1.744 albertel 9567: ($symbparm eq &symbread()) ) {
9568: # if we are in the middle of processing the resource the
9569: # get the value we are planning on committing
9570: if (defined($Apache::lonhomework::results{$qualifierrest})) {
9571: return $Apache::lonhomework::results{$qualifierrest};
9572: } else {
9573: return $Apache::lonhomework::history{$qualifierrest};
9574: }
1.335 albertel 9575: } else {
1.359 albertel 9576: my %restored;
1.620 albertel 9577: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 9578: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
9579: } else {
9580: %restored=&restore($symbparm,$courseid,$udom,$uname);
9581: }
1.335 albertel 9582: return $restored{$qualifierrest};
9583: }
1.48 www 9584: # ----------------------------------------------------------------- user.access
9585: } elsif ($space eq 'access') {
1.218 albertel 9586: # FIXME - not supporting calls for a specific user
1.48 www 9587: return &allowed($qualifier,$rest);
9588: # ------------------------------------------ user.preferences, user.environment
9589: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 9590: if (($uname eq $env{'user.name'}) &&
9591: ($udom eq $env{'user.domain'})) {
9592: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 9593: } else {
1.359 albertel 9594: my %returnhash;
9595: if (!$publicuser) {
9596: %returnhash=&userenvironment($udom,$uname,
9597: $qualifierrest);
9598: }
1.218 albertel 9599: return $returnhash{$qualifierrest};
9600: }
1.48 www 9601: # ----------------------------------------------------------------- user.course
9602: } elsif ($space eq 'course') {
1.218 albertel 9603: # FIXME - not supporting calls for a specific user
1.620 albertel 9604: return $env{join('.',('request.course',$qualifier))};
1.48 www 9605: # ------------------------------------------------------------------- user.role
9606: } elsif ($space eq 'role') {
1.218 albertel 9607: # FIXME - not supporting calls for a specific user
1.620 albertel 9608: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 9609: if ($qualifier eq 'value') {
9610: return $role;
9611: } elsif ($qualifier eq 'extent') {
9612: return $where;
9613: }
9614: # ----------------------------------------------------------------- user.domain
9615: } elsif ($space eq 'domain') {
1.218 albertel 9616: return $udom;
1.48 www 9617: # ------------------------------------------------------------------- user.name
9618: } elsif ($space eq 'name') {
1.218 albertel 9619: return $uname;
1.48 www 9620: # ---------------------------------------------------- Any other user namespace
1.29 www 9621: } else {
1.359 albertel 9622: my %reply;
9623: if (!$publicuser) {
9624: %reply=&get($space,[$qualifierrest],$udom,$uname);
9625: }
9626: return $reply{$qualifierrest};
1.48 www 9627: }
1.236 www 9628: } elsif ($realm eq 'query') {
9629: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 9630: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
9631: [$spacequalifierrest]);
1.620 albertel 9632: return $env{'form.'.$spacequalifierrest};
1.236 www 9633: } elsif ($realm eq 'request') {
1.48 www 9634: # ------------------------------------------------------------- request.browser
9635: if ($space eq 'browser') {
1.1145 bisitz 9636: return $env{'browser.'.$qualifier};
1.57 www 9637: # ------------------------------------------------------------ request.filename
9638: } else {
1.620 albertel 9639: return $env{'request.'.$spacequalifierrest};
1.29 www 9640: }
1.28 www 9641: } elsif ($realm eq 'course') {
1.48 www 9642: # ---------------------------------------------------------- course.description
1.620 albertel 9643: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 9644: } elsif ($realm eq 'resource') {
1.165 www 9645:
1.620 albertel 9646: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 9647: if (!$symbparm) { $symbparm=&symbread(); }
9648: }
1.693 albertel 9649:
9650: if ($space eq 'title') {
9651: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
9652: return &gettitle($symbparm);
9653: }
9654:
9655: if ($space eq 'map') {
9656: my ($map) = &decode_symb($symbparm);
9657: return &symbread($map);
9658: }
1.905 albertel 9659: if ($space eq 'filename') {
9660: if ($symbparm) {
9661: return &clutter((&decode_symb($symbparm))[2]);
9662: }
9663: return &hreflocation('',$env{'request.filename'});
9664: }
1.693 albertel 9665:
9666: my ($section, $group, @groups);
1.593 albertel 9667: my ($courselevelm,$courselevel);
1.539 albertel 9668: if ($symbparm && defined($courseid) &&
1.620 albertel 9669: $courseid eq $env{'request.course.id'}) {
1.165 www 9670:
1.218 albertel 9671: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 9672:
1.60 www 9673: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 9674: my $symbp=$symbparm;
1.735 albertel 9675: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 9676:
9677: my $symbparm=$symbp.'.'.$spacequalifierrest;
9678: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
9679:
1.620 albertel 9680: if (($env{'user.name'} eq $uname) &&
9681: ($env{'user.domain'} eq $udom)) {
9682: $section=$env{'request.course.sec'};
1.733 raeburn 9683: @groups = split(/:/,$env{'request.course.groups'});
9684: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 9685: } else {
1.539 albertel 9686: if (! defined($usection)) {
1.551 albertel 9687: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 9688: } else {
9689: $section = $usection;
9690: }
1.733 raeburn 9691: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 9692: }
9693:
9694: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
9695: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
9696: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
9697:
1.593 albertel 9698: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 9699: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 9700: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 9701:
1.60 www 9702: # ----------------------------------------------------------- first, check user
1.624 albertel 9703:
9704: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 9705: ([$courselevelr,'resource'],
9706: [$courselevelm,'map' ],
9707: [$courselevel, 'course' ]));
1.931 albertel 9708: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 9709:
1.594 albertel 9710: # ------------------------------------------------ second, check some of course
1.684 raeburn 9711: my $coursereply;
1.691 raeburn 9712: if (@groups > 0) {
9713: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
9714: $mapparm,$spacequalifierrest);
1.927 albertel 9715: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 9716: }
1.96 www 9717:
1.684 raeburn 9718: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 9719: $env{'course.'.$courseid.'.domain'},
9720: 'course',
9721: ([$seclevelr, 'resource'],
9722: [$seclevelm, 'map' ],
9723: [$seclevel, 'course' ],
9724: [$courselevelr,'resource']));
9725: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 9726:
1.60 www 9727: # ------------------------------------------------------ third, check map parms
1.218 albertel 9728: my %parmhash=();
9729: my $thisparm='';
9730: if (tie(%parmhash,'GDBM_File',
1.620 albertel 9731: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 9732: &GDBM_READER(),0640)) {
1.218 albertel 9733: $thisparm=$parmhash{$symbparm};
9734: untie(%parmhash);
9735: }
1.927 albertel 9736: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 9737: }
1.594 albertel 9738: # ------------------------------------------ fourth, look in resource metadata
1.71 www 9739:
1.218 albertel 9740: $spacequalifierrest=~s/\./\_/;
1.282 albertel 9741: my $filename;
9742: if (!$symbparm) { $symbparm=&symbread(); }
9743: if ($symbparm) {
1.409 www 9744: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 9745: } else {
1.620 albertel 9746: $filename=$env{'request.filename'};
1.282 albertel 9747: }
9748: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 9749: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 9750: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 9751: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 9752:
1.927 albertel 9753: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 9754: if ($symbparm && defined($courseid) &&
1.620 albertel 9755: $courseid eq $env{'request.course.id'}) {
1.624 albertel 9756: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
9757: $env{'course.'.$courseid.'.domain'},
9758: 'course',
1.927 albertel 9759: ([$courselevelm,'map' ],
9760: [$courselevel, 'course']));
9761: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 9762: }
1.145 www 9763: # ------------------------------------------------------------------ Cascade up
1.218 albertel 9764: unless ($space eq '0') {
1.336 albertel 9765: my @parts=split(/_/,$space);
9766: my $id=pop(@parts);
9767: my $part=join('_',@parts);
9768: if ($part eq '') { $part='0'; }
1.927 albertel 9769: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 9770: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 9771: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 9772: }
1.395 albertel 9773: if ($recurse) { return undef; }
9774: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 9775: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 9776: # ---------------------------------------------------- Any other user namespace
9777: } elsif ($realm eq 'environment') {
9778: # ----------------------------------------------------------------- environment
1.620 albertel 9779: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
9780: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 9781: } else {
1.770 albertel 9782: if ($uname eq 'anonymous' && $udom eq '') {
9783: return '';
9784: }
1.219 albertel 9785: my %returnhash=&userenvironment($udom,$uname,
9786: $spacequalifierrest);
9787: return $returnhash{$spacequalifierrest};
9788: }
1.28 www 9789: } elsif ($realm eq 'system') {
1.48 www 9790: # ----------------------------------------------------------------- system.time
9791: if ($space eq 'time') {
9792: return time;
9793: }
1.696 albertel 9794: } elsif ($realm eq 'server') {
9795: # ----------------------------------------------------------------- system.time
9796: if ($space eq 'name') {
9797: return $ENV{'SERVER_NAME'};
9798: }
1.28 www 9799: }
1.48 www 9800: return '';
1.61 www 9801: }
9802:
1.927 albertel 9803: sub get_reply {
9804: my ($reply_value) = @_;
1.940 raeburn 9805: if (ref($reply_value) eq 'ARRAY') {
9806: if (wantarray) {
9807: return @$reply_value;
9808: }
9809: return $reply_value->[0];
9810: } else {
9811: return $reply_value;
1.927 albertel 9812: }
9813: }
9814:
1.691 raeburn 9815: sub check_group_parms {
9816: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
9817: my @groupitems = ();
9818: my $resultitem;
1.927 albertel 9819: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 9820: foreach my $group (@{$groups}) {
9821: foreach my $level (@levels) {
1.927 albertel 9822: my $item = $courseid.'.['.$group.'].'.$level->[0];
9823: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 9824: }
9825: }
9826: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
9827: $env{'course.'.$courseid.'.domain'},
9828: 'course',@groupitems);
9829: return $coursereply;
9830: }
9831:
9832: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 9833: my ($courseid,@groups) = @_;
9834: @groups = sort(@groups);
1.691 raeburn 9835: return @groups;
9836: }
9837:
1.395 albertel 9838: sub packages_tab_default {
9839: my ($uri,$varname)=@_;
9840: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 9841:
9842: my (@extension,@specifics,$do_default);
9843: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 9844: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 9845: if ($pack_type eq 'default') {
9846: $do_default=1;
9847: } elsif ($pack_type eq 'extension') {
9848: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 9849: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 9850: # only look at packages defaults for packages that this id is
1.738 albertel 9851: push(@specifics,[$package,$pack_type,$pack_part]);
9852: }
9853: }
9854: # first look for a package that matches the requested part id
9855: foreach my $package (@specifics) {
9856: my (undef,$pack_type,$pack_part)=@{$package};
9857: next if ($pack_part ne $part);
9858: if (defined($packagetab{"$pack_type&$name&default"})) {
9859: return $packagetab{"$pack_type&$name&default"};
9860: }
9861: }
9862: # look for any possible matching non extension_ package
9863: foreach my $package (@specifics) {
9864: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 9865: if (defined($packagetab{"$pack_type&$name&default"})) {
9866: return $packagetab{"$pack_type&$name&default"};
9867: }
1.585 albertel 9868: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 9869: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
9870: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 9871: }
9872: }
1.738 albertel 9873: # look for any posible extension_ match
9874: foreach my $package (@extension) {
9875: my ($package,$pack_type)=@{$package};
9876: if (defined($packagetab{"$pack_type&$name&default"})) {
9877: return $packagetab{"$pack_type&$name&default"};
9878: }
9879: if (defined($packagetab{$package."&$name&default"})) {
9880: return $packagetab{$package."&$name&default"};
9881: }
9882: }
9883: # look for a global default setting
9884: if ($do_default && defined($packagetab{"default&$name&default"})) {
9885: return $packagetab{"default&$name&default"};
9886: }
1.395 albertel 9887: return undef;
9888: }
9889:
1.334 albertel 9890: sub add_prefix_and_part {
9891: my ($prefix,$part)=@_;
9892: my $keyroot;
9893: if (defined($prefix) && $prefix !~ /^__/) {
9894: # prefix that has a part already
9895: $keyroot=$prefix;
9896: } elsif (defined($prefix)) {
9897: # prefix that is missing a part
9898: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
9899: } else {
9900: # no prefix at all
9901: if (defined($part)) { $keyroot='_'.$part; }
9902: }
9903: return $keyroot;
9904: }
9905:
1.71 www 9906: # ---------------------------------------------------------------- Get metadata
9907:
1.599 albertel 9908: my %metaentry;
1.1070 www 9909: my %importedpartids;
1.71 www 9910: sub metadata {
1.176 www 9911: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 9912: $uri=&declutter($uri);
1.288 albertel 9913: # if it is a non metadata possible uri return quickly
1.529 albertel 9914: if (($uri eq '') ||
9915: (($uri =~ m|^/*adm/|) &&
1.698 albertel 9916: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.1108 raeburn 9917: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 9918: return undef;
9919: }
1.1140 www 9920: if (($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/)
1.924 albertel 9921: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 9922: return undef;
1.288 albertel 9923: }
1.73 www 9924: my $filename=$uri;
9925: $uri=~s/\.meta$//;
1.172 www 9926: #
9927: # Is the metadata already cached?
1.177 www 9928: # Look at timestamp of caching
1.172 www 9929: # Everything is cached by the main uri, libraries are never directly cached
9930: #
1.428 albertel 9931: if (!defined($liburi)) {
1.599 albertel 9932: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 9933: if (defined($cached)) { return $result->{':'.$what}; }
9934: }
9935: {
1.1069 www 9936: # Imported parts would go here
1.1070 www 9937: my %importedids=();
9938: my @origfileimportpartids=();
1.1069 www 9939: my $importedparts=0;
1.172 www 9940: #
9941: # Is this a recursive call for a library?
9942: #
1.599 albertel 9943: # if (! exists($metacache{$uri})) {
9944: # $metacache{$uri}={};
9945: # }
1.924 albertel 9946: my $cachetime = 60*60;
1.171 www 9947: if ($liburi) {
9948: $liburi=&declutter($liburi);
9949: $filename=$liburi;
1.401 bowersj2 9950: } else {
1.599 albertel 9951: &devalidate_cache_new('meta',$uri);
9952: undef(%metaentry);
1.401 bowersj2 9953: }
1.140 www 9954: my %metathesekeys=();
1.73 www 9955: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 9956: my $metastring;
1.1140 www 9957: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 9958: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 9959: $metastring =
1.929 albertel 9960: &Apache::lonnet::ssi_body($which,
1.924 albertel 9961: ('grade_target' => 'meta'));
9962: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 9963: } elsif (($uri !~ m -^(editupload)/-) &&
9964: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 9965: my $file=&filelocation('',&clutter($filename));
1.599 albertel 9966: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 9967: $metastring=&getfile($file);
1.489 albertel 9968: }
1.208 albertel 9969: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 9970: my $token;
1.140 www 9971: undef %metathesekeys;
1.71 www 9972: while ($token=$parser->get_token) {
1.339 albertel 9973: if ($token->[0] eq 'S') {
9974: if (defined($token->[2]->{'package'})) {
1.172 www 9975: #
9976: # This is a package - get package info
9977: #
1.339 albertel 9978: my $package=$token->[2]->{'package'};
9979: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9980: if (defined($token->[2]->{'id'})) {
9981: $keyroot.='_'.$token->[2]->{'id'};
9982: }
1.599 albertel 9983: if ($metaentry{':packages'}) {
9984: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 9985: } else {
1.599 albertel 9986: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 9987: }
1.736 albertel 9988: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 9989: my $part=$keyroot;
9990: $part=~s/^\_//;
1.736 albertel 9991: if ($pack_entry=~/^\Q$package\E\&/ ||
9992: $pack_entry=~/^\Q$package\E_0\&/) {
9993: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 9994: # ignore package.tab specified default values
9995: # here &package_tab_default() will fetch those
9996: if ($subp eq 'default') { next; }
1.736 albertel 9997: my $value=$packagetab{$pack_entry};
1.432 albertel 9998: my $unikey;
9999: if ($pack =~ /_0$/) {
10000: $unikey='parameter_0_'.$name;
10001: $part=0;
10002: } else {
10003: $unikey='parameter'.$keyroot.'_'.$name;
10004: }
1.339 albertel 10005: if ($subp eq 'display') {
10006: $value.=' [Part: '.$part.']';
10007: }
1.599 albertel 10008: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 10009: $metathesekeys{$unikey}=1;
1.599 albertel 10010: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10011: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 10012: }
1.599 albertel 10013: if (defined($metaentry{':'.$unikey.'.default'})) {
10014: $metaentry{':'.$unikey}=
10015: $metaentry{':'.$unikey.'.default'};
1.356 albertel 10016: }
1.339 albertel 10017: }
10018: }
10019: } else {
1.172 www 10020: #
10021: # This is not a package - some other kind of start tag
1.339 albertel 10022: #
10023: my $entry=$token->[1];
1.1068 www 10024: my $unikey='';
1.175 www 10025:
1.339 albertel 10026: if ($entry eq 'import') {
1.175 www 10027: #
10028: # Importing a library here
1.339 albertel 10029: #
1.1067 www 10030: my $location=$parser->get_text('/import');
10031: my $dir=$filename;
10032: $dir=~s|[^/]*$||;
10033: $location=&filelocation($dir,$location);
1.1069 www 10034:
1.1068 www 10035: my $importmode=$token->[2]->{'importmode'};
10036: if ($importmode eq 'problem') {
1.1069 www 10037: # Import as problem/response
1.1068 www 10038: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10039: } elsif ($importmode eq 'part') {
10040: # Import as part(s)
1.1069 www 10041: $importedparts=1;
10042: # We need to get the original file and the imported file to get the part order correct
10043: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
10044: # Load and inspect original file
1.1070 www 10045: if ($#origfileimportpartids<0) {
10046: undef(%importedpartids);
10047: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
10048: my $origfile=&getfile($origfilelocation);
10049: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10050: }
10051:
1.1069 www 10052: # Load and inspect imported file
10053: my $impfile=&getfile($location);
10054: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10055: if ($#impfilepartids>=0) {
10056: # This problem had parts
1.1070 www 10057: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 10058: } else {
10059: # Importing by turning a single problem into a problem part
10060: # It gets the import-tags ID as part-ID
10061: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 10062: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 10063: }
1.1068 www 10064: } else {
10065: # Normal import
10066: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10067: if (defined($token->[2]->{'id'})) {
10068: $unikey.='_'.$token->[2]->{'id'};
10069: }
1.1067 www 10070: }
10071:
1.339 albertel 10072: if ($depthcount<20) {
1.736 albertel 10073: my $metadata =
10074: &metadata($uri,'keys', $location,$unikey,
10075: $depthcount+1);
10076: foreach my $meta (split(',',$metadata)) {
10077: $metaentry{':'.$meta}=$metaentry{':'.$meta};
10078: $metathesekeys{$meta}=1;
1.339 albertel 10079: }
1.1068 www 10080:
10081: }
1.1067 www 10082: } else {
10083: #
10084: # Not importing, some other kind of non-package, non-library start tag
10085: #
10086: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
10087: if (defined($token->[2]->{'id'})) {
10088: $unikey.='_'.$token->[2]->{'id'};
10089: }
1.339 albertel 10090: if (defined($token->[2]->{'name'})) {
10091: $unikey.='_'.$token->[2]->{'name'};
10092: }
10093: $metathesekeys{$unikey}=1;
1.736 albertel 10094: foreach my $param (@{$token->[3]}) {
10095: $metaentry{':'.$unikey.'.'.$param} =
10096: $token->[2]->{$param};
1.339 albertel 10097: }
10098: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 10099: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 10100: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
10101: # only ws inside the tag, and not in default, so use default
10102: # as value
1.599 albertel 10103: $metaentry{':'.$unikey}=$default;
1.908 albertel 10104: } elsif ( $internaltext =~ /\S/ ) {
10105: # something interesting inside the tag
10106: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 10107: } else {
1.908 albertel 10108: # no interesting values, don't set a default
1.339 albertel 10109: }
1.172 www 10110: # end of not-a-package not-a-library import
1.339 albertel 10111: }
1.172 www 10112: # end of not-a-package start tag
1.339 albertel 10113: }
1.172 www 10114: # the next is the end of "start tag"
1.339 albertel 10115: }
10116: }
1.483 albertel 10117: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 10118: $extension = lc($extension);
10119: if ($extension eq 'htm') { $extension='html'; }
10120:
1.737 albertel 10121: foreach my $key (keys(%packagetab)) {
1.483 albertel 10122: #no specific packages #how's our extension
10123: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 10124: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 10125: \%metathesekeys);
10126: }
1.883 albertel 10127:
10128: if (!exists($metaentry{':packages'})
10129: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 10130: foreach my $key (keys(%packagetab)) {
1.483 albertel 10131: #no specific packages well let's get default then
10132: if ($key!~/^default&/) { next; }
1.488 albertel 10133: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 10134: \%metathesekeys);
10135: }
10136: }
1.338 www 10137: # are there custom rights to evaluate
1.599 albertel 10138: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 10139:
1.338 www 10140: #
10141: # Importing a rights file here
1.339 albertel 10142: #
10143: unless ($depthcount) {
1.599 albertel 10144: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 10145: my $dir=$filename;
10146: $dir=~s|[^/]*$||;
10147: $location=&filelocation($dir,$location);
1.736 albertel 10148: my $rights_metadata =
10149: &metadata($uri,'keys',$location,'_rights',
10150: $depthcount+1);
10151: foreach my $rights (split(',',$rights_metadata)) {
10152: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
10153: $metathesekeys{$rights}=1;
1.339 albertel 10154: }
10155: }
10156: }
1.737 albertel 10157: # uniqifiy package listing
10158: my %seen;
10159: my @uniq_packages =
10160: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
10161: $metaentry{':packages'} = join(',',@uniq_packages);
10162:
1.1070 www 10163: if ($importedparts) {
10164: # We had imported parts and need to rebuild partorder
10165: $metaentry{':partorder'}='';
10166: $metathesekeys{'partorder'}=1;
10167: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
10168: if ($origfileimportpartids[$index] eq 'part') {
10169: # original part, part of the problem
10170: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
10171: } else {
10172: # we have imported parts at this position
10173: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
10174: }
10175: }
10176: $metaentry{':partorder'}=~s/^\,//;
10177: }
10178:
1.737 albertel 10179: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 10180: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
10181: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 10182: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 10183: # this is the end of "was not already recently cached
1.71 www 10184: }
1.599 albertel 10185: return $metaentry{':'.$what};
1.261 albertel 10186: }
10187:
1.488 albertel 10188: sub metadata_create_package_def {
1.483 albertel 10189: my ($uri,$key,$package,$metathesekeys)=@_;
10190: my ($pack,$name,$subp)=split(/\&/,$key);
10191: if ($subp eq 'default') { next; }
10192:
1.599 albertel 10193: if (defined($metaentry{':packages'})) {
10194: $metaentry{':packages'}.=','.$package;
1.483 albertel 10195: } else {
1.599 albertel 10196: $metaentry{':packages'}=$package;
1.483 albertel 10197: }
10198: my $value=$packagetab{$key};
10199: my $unikey;
10200: $unikey='parameter_0_'.$name;
1.599 albertel 10201: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 10202: $$metathesekeys{$unikey}=1;
1.599 albertel 10203: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10204: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 10205: }
1.599 albertel 10206: if (defined($metaentry{':'.$unikey.'.default'})) {
10207: $metaentry{':'.$unikey}=
10208: $metaentry{':'.$unikey.'.default'};
1.483 albertel 10209: }
10210: }
10211:
1.261 albertel 10212: sub metadata_generate_part0 {
10213: my ($metadata,$metacache,$uri) = @_;
10214: my %allnames;
1.737 albertel 10215: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 10216: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 10217: my $part=$$metacache{':'.$metakey.'.part'};
10218: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 10219: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 10220: $allnames{$name}=$part;
10221: }
10222: }
10223: }
10224: foreach my $name (keys(%allnames)) {
10225: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 10226: my $key=":parameter_0_$name";
1.261 albertel 10227: $$metacache{"$key.part"}='0';
10228: $$metacache{"$key.name"}=$name;
1.428 albertel 10229: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 10230: $allnames{$name}.'_'.$name.
10231: '.type'};
1.428 albertel 10232: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 10233: '.display'};
1.644 www 10234: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 10235: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 10236: $$metacache{"$key.display"}=$olddis;
10237: }
1.71 www 10238: }
10239:
1.764 albertel 10240: # ------------------------------------------------------ Devalidate title cache
10241:
10242: sub devalidate_title_cache {
10243: my ($url)=@_;
10244: if (!$env{'request.course.id'}) { return; }
10245: my $symb=&symbread($url);
10246: if (!$symb) { return; }
10247: my $key=$env{'request.course.id'}."\0".$symb;
10248: &devalidate_cache_new('title',$key);
10249: }
10250:
1.1014 droeschl 10251: # ------------------------------------------------- Get the title of a course
10252:
10253: sub current_course_title {
10254: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
10255: }
1.301 www 10256: # ------------------------------------------------- Get the title of a resource
10257:
10258: sub gettitle {
10259: my $urlsymb=shift;
10260: my $symb=&symbread($urlsymb);
1.534 albertel 10261: if ($symb) {
1.620 albertel 10262: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 10263: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 10264: if (defined($cached)) {
10265: return $result;
10266: }
1.534 albertel 10267: my ($map,$resid,$url)=&decode_symb($symb);
10268: my $title='';
1.907 albertel 10269: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
10270: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
10271: } else {
10272: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10273: &GDBM_READER(),0640)) {
10274: my $mapid=$bighash{'map_pc_'.&clutter($map)};
10275: $title=$bighash{'title_'.$mapid.'.'.$resid};
10276: untie(%bighash);
10277: }
1.534 albertel 10278: }
10279: $title=~s/\&colon\;/\:/gs;
10280: if ($title) {
1.1159 www 10281: # Remember both $symb and $title for dynamic metadata
10282: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 10283: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 10284: # Cache this title and then return it
1.599 albertel 10285: return &do_cache_new('title',$key,$title,600);
1.534 albertel 10286: }
10287: $urlsymb=$url;
10288: }
10289: my $title=&metadata($urlsymb,'title');
10290: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
10291: return $title;
1.301 www 10292: }
1.613 albertel 10293:
1.1199 raeburn 10294: sub getdocspath {
10295: my ($symb) = @_;
10296: my $path;
10297: if ($symb) {
10298: my ($mapurl,$id,$resurl) = &decode_symb($symb);
10299: if ($resurl=~/\.(sequence|page)$/) {
10300: $mapurl=$resurl;
10301: } elsif ($resurl eq 'adm/navmaps') {
10302: $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
10303: }
10304: my $mapresobj;
10305: my $navmap = Apache::lonnavmaps::navmap->new();
10306: if (ref($navmap)) {
10307: $mapresobj = $navmap->getResourceByUrl($mapurl);
10308: }
10309: $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
10310: my $type=$2;
10311: if (ref($mapresobj)) {
10312: my $pcslist = $mapresobj->map_hierarchy();
10313: if ($pcslist ne '') {
10314: foreach my $pc (split(/,/,$pcslist)) {
10315: next if ($pc <= 1);
10316: my $res = $navmap->getByMapPc($pc);
10317: if (ref($res)) {
10318: my $thisurl = $res->src();
10319: $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
10320: my $thistitle = $res->title();
10321: $path .= '&'.
10322: &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
10323: &Apache::lonhtmlcommon::entity_encode($thistitle).
10324: ':'.$res->randompick().
10325: ':'.$res->randomout().
10326: ':'.$res->encrypted().
10327: ':'.$res->randomorder();
10328: }
10329: }
10330: }
10331: $path =~ s/^\&//;
10332: my $maptitle = $mapresobj->title();
10333: if ($mapurl eq 'default') {
10334: $maptitle = 'Main Course Documents';
10335: }
10336: $path .= ($path ne '')? '&' : ''.
10337: &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
10338: &Apache::lonhtmlcommon::entity_encode($maptitle).
10339: ':'.$mapresobj->randompick().
10340: ':'.$mapresobj->randomout().
10341: ':'.$mapresobj->encrypted().
10342: ':'.$mapresobj->randomorder();
10343: } else {
10344: my $maptitle = &gettitle($mapurl);
10345: if ($mapurl eq 'default') {
10346: $maptitle = 'Main Course Documents';
10347: }
10348: $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
10349: &Apache::lonhtmlcommon::entity_encode($maptitle).'::::';
10350: }
10351: unless ($mapurl eq 'default') {
10352: $path = 'default&'.
10353: &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
10354: '::::&'.$path;
10355: }
10356: }
10357: return $path;
10358: }
10359:
1.614 albertel 10360: sub get_slot {
10361: my ($which,$cnum,$cdom)=@_;
10362: if (!$cnum || !$cdom) {
1.790 albertel 10363: (undef,my $courseid)=&whichuser();
1.620 albertel 10364: $cdom=$env{'course.'.$courseid.'.domain'};
10365: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 10366: }
1.703 albertel 10367: my $key=join("\0",'slots',$cdom,$cnum,$which);
10368: my %slotinfo;
10369: if (exists($remembered{$key})) {
10370: $slotinfo{$which} = $remembered{$key};
10371: } else {
10372: %slotinfo=&get('slots',[$which],$cdom,$cnum);
10373: &Apache::lonhomework::showhash(%slotinfo);
10374: my ($tmp)=keys(%slotinfo);
10375: if ($tmp=~/^error:/) { return (); }
10376: $remembered{$key} = $slotinfo{$which};
10377: }
1.616 albertel 10378: if (ref($slotinfo{$which}) eq 'HASH') {
10379: return %{$slotinfo{$which}};
10380: }
10381: return $slotinfo{$which};
1.614 albertel 10382: }
1.1150 raeburn 10383:
10384: sub get_reservable_slots {
10385: my ($cnum,$cdom,$uname,$udom) = @_;
10386: my $now = time;
10387: my $reservable_info;
10388: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
10389: if (exists($remembered{$key})) {
10390: $reservable_info = $remembered{$key};
10391: } else {
10392: my %resv;
10393: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
10394: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
10395: $reservable_info = \%resv;
10396: $remembered{$key} = $reservable_info;
10397: }
10398: return $reservable_info;
10399: }
10400:
10401: sub get_course_slots {
10402: my ($cnum,$cdom) = @_;
10403: my $hashid=$cnum.':'.$cdom;
10404: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
10405: if (defined($cached)) {
10406: if (ref($result) eq 'HASH') {
10407: return %{$result};
10408: }
10409: } else {
10410: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
10411: my ($tmp) = keys(%slots);
10412: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
10413: &Apache::lonnet::do_cache_new('allslots',$hashid,\%slots,600);
10414: return %slots;
10415: }
10416: }
10417: return;
10418: }
10419:
10420: sub devalidate_slots_cache {
10421: my ($cnum,$cdom)=@_;
10422: my $hashid=$cnum.':'.$cdom;
10423: &devalidate_cache_new('allslots',$hashid);
10424: }
10425:
1.1181 raeburn 10426: sub get_coursechange {
10427: my ($cdom,$cnum) = @_;
10428: if ($cdom eq '' || $cnum eq '') {
10429: return unless ($env{'request.course.id'});
10430: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
10431: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
10432: }
10433: my $hashid=$cdom.'_'.$cnum;
10434: my ($change,$cached)=&is_cached_new('crschange',$hashid);
10435: if ((defined($cached)) && ($change ne '')) {
10436: return $change;
10437: } else {
10438: my %crshash;
10439: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
10440: if ($crshash{'internal.contentchange'} eq '') {
10441: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
10442: if ($change eq '') {
10443: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
10444: $change = $crshash{'internal.created'};
10445: }
10446: } else {
10447: $change = $crshash{'internal.contentchange'};
10448: }
10449: my $cachetime = 600;
10450: &do_cache_new('crschange',$hashid,$change,$cachetime);
10451: }
10452: return $change;
10453: }
10454:
10455: sub devalidate_coursechange_cache {
10456: my ($cnum,$cdom)=@_;
10457: my $hashid=$cnum.':'.$cdom;
10458: &devalidate_cache_new('crschange',$hashid);
10459: }
10460:
1.31 www 10461: # ------------------------------------------------- Update symbolic store links
10462:
10463: sub symblist {
10464: my ($mapname,%newhash)=@_;
1.438 www 10465: $mapname=&deversion(&declutter($mapname));
1.31 www 10466: my %hash;
1.620 albertel 10467: if (($env{'request.course.fn'}) && (%newhash)) {
10468: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10469: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 10470: foreach my $url (keys(%newhash)) {
1.711 albertel 10471: next if ($url eq 'last_known'
10472: && $env{'form.no_update_last_known'});
10473: $hash{declutter($url)}=&encode_symb($mapname,
10474: $newhash{$url}->[1],
10475: $newhash{$url}->[0]);
1.191 harris41 10476: }
1.31 www 10477: if (untie(%hash)) {
10478: return 'ok';
10479: }
10480: }
10481: }
10482: return 'error';
1.212 www 10483: }
10484:
10485: # --------------------------------------------------------------- Verify a symb
10486:
10487: sub symbverify {
1.1190 raeburn 10488: my ($symb,$thisurl,$encstate)=@_;
1.510 www 10489: my $thisfn=$thisurl;
1.439 www 10490: $thisfn=&declutter($thisfn);
1.215 www 10491: # direct jump to resource in page or to a sequence - will construct own symbs
10492: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
10493: # check URL part
1.409 www 10494: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 10495:
1.431 www 10496: unless ($url eq $thisfn) { return 0; }
1.213 www 10497:
1.216 www 10498: $symb=&symbclean($symb);
1.510 www 10499: $thisurl=&deversion($thisurl);
1.439 www 10500: $thisfn=&deversion($thisfn);
1.213 www 10501:
10502: my %bighash;
10503: my $okay=0;
1.431 www 10504:
1.620 albertel 10505: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10506: &GDBM_READER(),0640)) {
1.1204 ! raeburn 10507: my $noclutter;
1.1032 raeburn 10508: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
10509: $thisurl =~ s/\?.+$//;
1.1204 ! raeburn 10510: if ($map =~ m{^uploaded/.+\.page$}) {
! 10511: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
! 10512: $thisurl =~ s{^\Qhttp://https://\E}{https://};
! 10513: $noclutter = 1;
! 10514: }
! 10515: }
! 10516: my $ids;
! 10517: if ($noclutter) {
! 10518: $ids=$bighash{'ids_'.$thisurl};
! 10519: } else {
! 10520: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 10521: }
1.1102 raeburn 10522: unless ($ids) {
10523: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
10524: $ids=$bighash{$idkey};
1.216 www 10525: }
10526: if ($ids) {
10527: # ------------------------------------------------------------------- Has ID(s)
1.1202 raeburn 10528: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
1.1203 raeburn 10529: $symb =~ s/\?.+$//;
1.1202 raeburn 10530: }
1.800 albertel 10531: foreach my $id (split(/\,/,$ids)) {
10532: my ($mapid,$resid)=split(/\./,$id);
1.216 www 10533: if (
10534: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1190 raeburn 10535: eq $symb) {
10536: if (ref($encstate)) {
10537: $$encstate = $bighash{'encrypted_'.$id};
10538: }
1.620 albertel 10539: if (($env{'request.role.adv'}) ||
1.1101 raeburn 10540: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
10541: ($thisurl eq '/adm/navmaps')) {
1.1190 raeburn 10542: $okay=1;
1.1202 raeburn 10543: last;
1.582 albertel 10544: }
10545: }
1.216 www 10546: }
10547: }
1.213 www 10548: untie(%bighash);
10549: }
10550: return $okay;
1.31 www 10551: }
10552:
1.210 www 10553: # --------------------------------------------------------------- Clean-up symb
10554:
10555: sub symbclean {
10556: my $symb=shift;
1.568 albertel 10557: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 10558: # remove version from map
10559: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 10560:
1.210 www 10561: # remove version from URL
10562: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 10563:
1.507 www 10564: # remove wrapper
10565:
1.510 www 10566: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 10567: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 10568: return $symb;
1.409 www 10569: }
10570:
10571: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 10572:
10573: sub encode_symb {
10574: my ($map,$resid,$url)=@_;
10575: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
10576: }
1.409 www 10577:
10578: sub decode_symb {
1.568 albertel 10579: my $symb=shift;
10580: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
10581: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 10582: return (&fixversion($map),$resid,&fixversion($url));
10583: }
10584:
10585: sub fixversion {
10586: my $fn=shift;
1.609 banghart 10587: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 10588: my %bighash;
10589: my $uri=&clutter($fn);
1.620 albertel 10590: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 10591: # is this cached?
1.599 albertel 10592: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 10593: if (defined($cached)) { return $result; }
10594: # unfortunately not cached, or expired
1.620 albertel 10595: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 10596: &GDBM_READER(),0640)) {
10597: if ($bighash{'version_'.$uri}) {
10598: my $version=$bighash{'version_'.$uri};
1.444 www 10599: unless (($version eq 'mostrecent') ||
10600: ($version==&getversion($uri))) {
1.440 www 10601: $uri=~s/\.(\w+)$/\.$version\.$1/;
10602: }
10603: }
10604: untie %bighash;
1.413 www 10605: }
1.599 albertel 10606: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 10607: }
10608:
10609: sub deversion {
10610: my $url=shift;
10611: $url=~s/\.\d+\.(\w+)$/\.$1/;
10612: return $url;
1.210 www 10613: }
10614:
1.31 www 10615: # ------------------------------------------------------ Return symb list entry
10616:
10617: sub symbread {
1.249 www 10618: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 10619: my $cache_str='request.symbread.cached.'.$thisfn;
1.1179 raeburn 10620: if (defined($env{$cache_str})) {
10621: if (($thisfn) || ($env{$cache_str} ne '')) {
10622: return $env{$cache_str};
10623: }
10624: }
1.242 www 10625: # no filename provided? try from environment
1.44 www 10626: unless ($thisfn) {
1.620 albertel 10627: if ($env{'request.symb'}) {
10628: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 10629: }
1.620 albertel 10630: $thisfn=$env{'request.filename'};
1.44 www 10631: }
1.569 albertel 10632: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 10633: # is that filename actually a symb? Verify, clean, and return
10634: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 10635: if (&symbverify($thisfn,$1)) {
1.620 albertel 10636: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 10637: }
1.242 www 10638: }
1.44 www 10639: $thisfn=declutter($thisfn);
1.31 www 10640: my %hash;
1.37 www 10641: my %bighash;
10642: my $syval='';
1.620 albertel 10643: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 10644: my $targetfn = $thisfn;
1.609 banghart 10645: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 10646: $targetfn = 'adm/wrapper/'.$thisfn;
10647: }
1.687 albertel 10648: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
10649: $targetfn=$1;
10650: }
1.620 albertel 10651: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10652: &GDBM_READER(),0640)) {
1.481 raeburn 10653: $syval=$hash{$targetfn};
1.37 www 10654: untie(%hash);
10655: }
10656: # ---------------------------------------------------------- There was an entry
10657: if ($syval) {
1.601 albertel 10658: #unless ($syval=~/\_\d+$/) {
1.620 albertel 10659: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 10660: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10661: #return $env{$cache_str}='';
1.601 albertel 10662: #}
10663: #$syval.=$1;
10664: #}
1.37 www 10665: } else {
10666: # ------------------------------------------------------- Was not in symb table
1.620 albertel 10667: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10668: &GDBM_READER(),0640)) {
1.37 www 10669: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 10670: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 10671: unless ($ids) {
10672: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 10673: }
10674: unless ($ids) {
10675: # alias?
10676: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 10677: }
1.37 www 10678: if ($ids) {
10679: # ------------------------------------------------------------------- Has ID(s)
10680: my @possibilities=split(/\,/,$ids);
1.39 www 10681: if ($#possibilities==0) {
10682: # ----------------------------------------------- There is only one possibility
1.37 www 10683: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 10684: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10685: $resid,$thisfn);
1.249 www 10686: } elsif (!$donotrecurse) {
1.39 www 10687: # ------------------------------------------ There is more than one possibility
10688: my $realpossible=0;
1.800 albertel 10689: foreach my $id (@possibilities) {
10690: my $file=$bighash{'src_'.$id};
1.39 www 10691: if (&allowed('bre',$file)) {
1.800 albertel 10692: my ($mapid,$resid)=split(/\./,$id);
1.39 www 10693: if ($bighash{'map_type_'.$mapid} ne 'page') {
10694: $realpossible++;
1.626 albertel 10695: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10696: $resid,$thisfn);
1.39 www 10697: }
10698: }
1.191 harris41 10699: }
1.39 www 10700: if ($realpossible!=1) { $syval=''; }
1.249 www 10701: } else {
10702: $syval='';
1.37 www 10703: }
10704: }
10705: untie(%bighash)
1.481 raeburn 10706: }
1.31 www 10707: }
1.62 www 10708: if ($syval) {
1.620 albertel 10709: return $env{$cache_str}=$syval;
1.62 www 10710: }
1.31 www 10711: }
1.949 raeburn 10712: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10713: return $env{$cache_str}='';
1.31 www 10714: }
10715:
10716: # ---------------------------------------------------------- Return random seed
10717:
1.32 www 10718: sub numval {
10719: my $txt=shift;
10720: $txt=~tr/A-J/0-9/;
10721: $txt=~tr/a-j/0-9/;
10722: $txt=~tr/K-T/0-9/;
10723: $txt=~tr/k-t/0-9/;
10724: $txt=~tr/U-Z/0-5/;
10725: $txt=~tr/u-z/0-5/;
10726: $txt=~s/\D//g;
1.564 albertel 10727: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 10728: return int($txt);
1.368 albertel 10729: }
10730:
1.484 albertel 10731: sub numval2 {
10732: my $txt=shift;
10733: $txt=~tr/A-J/0-9/;
10734: $txt=~tr/a-j/0-9/;
10735: $txt=~tr/K-T/0-9/;
10736: $txt=~tr/k-t/0-9/;
10737: $txt=~tr/U-Z/0-5/;
10738: $txt=~tr/u-z/0-5/;
10739: $txt=~s/\D//g;
10740: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10741: my $total;
10742: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 10743: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 10744: return int($total);
10745: }
10746:
1.575 albertel 10747: sub numval3 {
10748: use integer;
10749: my $txt=shift;
10750: $txt=~tr/A-J/0-9/;
10751: $txt=~tr/a-j/0-9/;
10752: $txt=~tr/K-T/0-9/;
10753: $txt=~tr/k-t/0-9/;
10754: $txt=~tr/U-Z/0-5/;
10755: $txt=~tr/u-z/0-5/;
10756: $txt=~s/\D//g;
10757: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10758: my $total;
10759: foreach my $val (@txts) { $total+=$val; }
10760: if ($_64bit) { $total=(($total<<32)>>32); }
10761: return $total;
10762: }
10763:
1.675 albertel 10764: sub digest {
10765: my ($data)=@_;
10766: my $digest=&Digest::MD5::md5($data);
10767: my ($a,$b,$c,$d)=unpack("iiii",$digest);
10768: my ($e,$f);
10769: {
10770: use integer;
10771: $e=($a+$b);
10772: $f=($c+$d);
10773: if ($_64bit) {
10774: $e=(($e<<32)>>32);
10775: $f=(($f<<32)>>32);
10776: }
10777: }
10778: if (wantarray) {
10779: return ($e,$f);
10780: } else {
10781: my $g;
10782: {
10783: use integer;
10784: $g=($e+$f);
10785: if ($_64bit) {
10786: $g=(($g<<32)>>32);
10787: }
10788: }
10789: return $g;
10790: }
10791: }
10792:
1.368 albertel 10793: sub latest_rnd_algorithm_id {
1.675 albertel 10794: return '64bit5';
1.366 albertel 10795: }
1.32 www 10796:
1.503 albertel 10797: sub get_rand_alg {
10798: my ($courseid)=@_;
1.790 albertel 10799: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 10800: if ($courseid) {
1.620 albertel 10801: return $env{"course.$courseid.rndseed"};
1.503 albertel 10802: }
10803: return &latest_rnd_algorithm_id();
10804: }
10805:
1.562 albertel 10806: sub validCODE {
10807: my ($CODE)=@_;
10808: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
10809: return 0;
10810: }
10811:
1.491 albertel 10812: sub getCODE {
1.620 albertel 10813: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 10814: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
10815: defined($Apache::lonhomework::parsing_a_task) ) &&
10816: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 10817: return $Apache::lonhomework::history{'resource.CODE'};
10818: }
10819: return undef;
10820: }
1.1133 foxr 10821: #
10822: # Determines the random seed for a specific context:
10823: #
10824: # parameters:
10825: # symb - in course context the symb for the seed.
10826: # course_id - The course id of the form domain_coursenum.
10827: # domain - Domain for the user.
10828: # course - Course for the user.
10829: # cenv - environment of the course.
10830: #
10831: # NOTE:
10832: # All parameters are picked out of the environment if missing
10833: # or not defined.
10834: # If a symb cannot be determined the current time is used instead.
10835: #
10836: # For a given well defined symb, courside, domain, username,
10837: # and course environment, the seed is reproducible.
10838: #
1.31 www 10839: sub rndseed {
1.1133 foxr 10840: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 10841: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 10842: if (!defined($symb)) {
1.366 albertel 10843: unless ($symb=$wsymb) { return time; }
10844: }
1.1146 foxr 10845: if (!defined $courseid) {
10846: $courseid=$wcourseid;
10847: }
10848: if (!defined $domain) { $domain=$wdomain; }
10849: if (!defined $username) { $username=$wusername }
1.1133 foxr 10850:
10851: my $which;
10852: if (defined($cenv->{'rndseed'})) {
10853: $which = $cenv->{'rndseed'};
10854: } else {
10855: $which =&get_rand_alg($courseid);
10856: }
1.491 albertel 10857: if (defined(&getCODE())) {
1.1133 foxr 10858:
1.675 albertel 10859: if ($which eq '64bit5') {
10860: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
10861: } elsif ($which eq '64bit4') {
1.575 albertel 10862: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
10863: } else {
10864: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
10865: }
1.675 albertel 10866: } elsif ($which eq '64bit5') {
10867: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 10868: } elsif ($which eq '64bit4') {
10869: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 10870: } elsif ($which eq '64bit3') {
10871: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 10872: } elsif ($which eq '64bit2') {
10873: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 10874: } elsif ($which eq '64bit') {
10875: return &rndseed_64bit($symb,$courseid,$domain,$username);
10876: }
10877: return &rndseed_32bit($symb,$courseid,$domain,$username);
10878: }
10879:
10880: sub rndseed_32bit {
10881: my ($symb,$courseid,$domain,$username)=@_;
10882: {
10883: use integer;
10884: my $symbchck=unpack("%32C*",$symb) << 27;
10885: my $symbseed=numval($symb) << 22;
10886: my $namechck=unpack("%32C*",$username) << 17;
10887: my $nameseed=numval($username) << 12;
10888: my $domainseed=unpack("%32C*",$domain) << 7;
10889: my $courseseed=unpack("%32C*",$courseid);
10890: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 10891: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10892: #&logthis("rndseed :$num:$symb");
1.564 albertel 10893: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 10894: return $num;
10895: }
10896: }
10897:
10898: sub rndseed_64bit {
10899: my ($symb,$courseid,$domain,$username)=@_;
10900: {
10901: use integer;
10902: my $symbchck=unpack("%32S*",$symb) << 21;
10903: my $symbseed=numval($symb) << 10;
10904: my $namechck=unpack("%32S*",$username);
10905:
10906: my $nameseed=numval($username) << 21;
10907: my $domainseed=unpack("%32S*",$domain) << 10;
10908: my $courseseed=unpack("%32S*",$courseid);
10909:
10910: my $num1=$symbchck+$symbseed+$namechck;
10911: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10912: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10913: #&logthis("rndseed :$num:$symb");
1.564 albertel 10914: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 10915: return "$num1,$num2";
1.155 albertel 10916: }
1.366 albertel 10917: }
10918:
1.443 albertel 10919: sub rndseed_64bit2 {
10920: my ($symb,$courseid,$domain,$username)=@_;
10921: {
10922: use integer;
10923: # strings need to be an even # of cahracters long, it it is odd the
10924: # last characters gets thrown away
10925: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10926: my $symbseed=numval($symb) << 10;
10927: my $namechck=unpack("%32S*",$username.' ');
10928:
10929: my $nameseed=numval($username) << 21;
1.501 albertel 10930: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10931: my $courseseed=unpack("%32S*",$courseid.' ');
10932:
10933: my $num1=$symbchck+$symbseed+$namechck;
10934: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10935: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10936: #&logthis("rndseed :$num:$symb");
1.803 albertel 10937: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 10938: return "$num1,$num2";
10939: }
10940: }
10941:
10942: sub rndseed_64bit3 {
10943: my ($symb,$courseid,$domain,$username)=@_;
10944: {
10945: use integer;
10946: # strings need to be an even # of cahracters long, it it is odd the
10947: # last characters gets thrown away
10948: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10949: my $symbseed=numval2($symb) << 10;
10950: my $namechck=unpack("%32S*",$username.' ');
10951:
10952: my $nameseed=numval2($username) << 21;
1.443 albertel 10953: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10954: my $courseseed=unpack("%32S*",$courseid.' ');
10955:
10956: my $num1=$symbchck+$symbseed+$namechck;
10957: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10958: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10959: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 10960: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10961:
1.503 albertel 10962: return "$num1:$num2";
1.443 albertel 10963: }
10964: }
10965:
1.575 albertel 10966: sub rndseed_64bit4 {
10967: my ($symb,$courseid,$domain,$username)=@_;
10968: {
10969: use integer;
10970: # strings need to be an even # of cahracters long, it it is odd the
10971: # last characters gets thrown away
10972: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10973: my $symbseed=numval3($symb) << 10;
10974: my $namechck=unpack("%32S*",$username.' ');
10975:
10976: my $nameseed=numval3($username) << 21;
10977: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10978: my $courseseed=unpack("%32S*",$courseid.' ');
10979:
10980: my $num1=$symbchck+$symbseed+$namechck;
10981: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10982: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10983: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 10984: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10985:
1.575 albertel 10986: return "$num1:$num2";
10987: }
10988: }
10989:
1.675 albertel 10990: sub rndseed_64bit5 {
10991: my ($symb,$courseid,$domain,$username)=@_;
10992: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
10993: return "$num1:$num2";
10994: }
10995:
1.366 albertel 10996: sub rndseed_CODE_64bit {
10997: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 10998: {
1.366 albertel 10999: use integer;
1.443 albertel 11000: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 11001: my $symbseed=numval2($symb);
1.491 albertel 11002: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11003: my $CODEseed=numval(&getCODE());
1.443 albertel 11004: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 11005: my $num1=$symbseed+$CODEchck;
11006: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11007: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11008: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 11009: if ($_64bit) { $num1=(($num1<<32)>>32); }
11010: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 11011: return "$num1:$num2";
1.366 albertel 11012: }
11013: }
11014:
1.575 albertel 11015: sub rndseed_CODE_64bit4 {
11016: my ($symb,$courseid,$domain,$username)=@_;
11017: {
11018: use integer;
11019: my $symbchck=unpack("%32S*",$symb.' ') << 16;
11020: my $symbseed=numval3($symb);
11021: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11022: my $CODEseed=numval3(&getCODE());
11023: my $courseseed=unpack("%32S*",$courseid.' ');
11024: my $num1=$symbseed+$CODEchck;
11025: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11026: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11027: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 11028: if ($_64bit) { $num1=(($num1<<32)>>32); }
11029: if ($_64bit) { $num2=(($num2<<32)>>32); }
11030: return "$num1:$num2";
11031: }
11032: }
11033:
1.675 albertel 11034: sub rndseed_CODE_64bit5 {
11035: my ($symb,$courseid,$domain,$username)=@_;
11036: my $code = &getCODE();
11037: my ($num1,$num2)=&digest("$symb,$courseid,$code");
11038: return "$num1:$num2";
11039: }
11040:
1.366 albertel 11041: sub setup_random_from_rndseed {
11042: my ($rndseed)=@_;
1.503 albertel 11043: if ($rndseed =~/([,:])/) {
11044: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 11045: &Math::Random::random_set_seed(abs($num1),abs($num2));
11046: } else {
11047: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 11048: }
1.36 albertel 11049: }
11050:
1.474 albertel 11051: sub latest_receipt_algorithm_id {
1.835 albertel 11052: return 'receipt3';
1.474 albertel 11053: }
11054:
1.480 www 11055: sub recunique {
11056: my $fucourseid=shift;
11057: my $unique;
1.835 albertel 11058: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
11059: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11060: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 11061: } else {
11062: $unique=$perlvar{'lonReceipt'};
11063: }
11064: return unpack("%32C*",$unique);
11065: }
11066:
11067: sub recprefix {
11068: my $fucourseid=shift;
11069: my $prefix;
1.835 albertel 11070: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
11071: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11072: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 11073: } else {
11074: $prefix=$perlvar{'lonHostID'};
11075: }
11076: return unpack("%32C*",$prefix);
11077: }
11078:
1.76 www 11079: sub ireceipt {
1.474 albertel 11080: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 11081:
11082: my $return =&recprefix($fucourseid).'-';
11083:
11084: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
11085: $env{'request.state'} eq 'construct') {
11086: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
11087: return $return;
11088: }
11089:
1.76 www 11090: my $cuname=unpack("%32C*",$funame);
11091: my $cudom=unpack("%32C*",$fudom);
11092: my $cucourseid=unpack("%32C*",$fucourseid);
11093: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 11094: my $cunique=&recunique($fucourseid);
1.474 albertel 11095: my $cpart=unpack("%32S*",$part);
1.835 albertel 11096: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
11097:
1.790 albertel 11098: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 11099:
11100: $return.= ($cunique%$cuname+
11101: $cunique%$cudom+
11102: $cusymb%$cuname+
11103: $cusymb%$cudom+
11104: $cucourseid%$cuname+
11105: $cucourseid%$cudom+
11106: $cpart%$cuname+
11107: $cpart%$cudom);
11108: } else {
11109: $return.= ($cunique%$cuname+
11110: $cunique%$cudom+
11111: $cusymb%$cuname+
11112: $cusymb%$cudom+
11113: $cucourseid%$cuname+
11114: $cucourseid%$cudom);
11115: }
11116: return $return;
1.76 www 11117: }
11118:
11119: sub receipt {
1.474 albertel 11120: my ($part)=@_;
1.790 albertel 11121: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 11122: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 11123: }
1.260 ng 11124:
1.790 albertel 11125: sub whichuser {
11126: my ($passedsymb)=@_;
11127: my ($symb,$courseid,$domain,$name,$publicuser);
11128: if (defined($env{'form.grade_symb'})) {
11129: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
11130: my $allowed=&allowed('vgr',$tmp_courseid);
11131: if (!$allowed &&
11132: exists($env{'request.course.sec'}) &&
11133: $env{'request.course.sec'} !~ /^\s*$/) {
11134: $allowed=&allowed('vgr',$tmp_courseid.
11135: '/'.$env{'request.course.sec'});
11136: }
11137: if ($allowed) {
11138: ($symb)=&get_env_multiple('form.grade_symb');
11139: $courseid=$tmp_courseid;
11140: ($domain)=&get_env_multiple('form.grade_domain');
11141: ($name)=&get_env_multiple('form.grade_username');
11142: return ($symb,$courseid,$domain,$name,$publicuser);
11143: }
11144: }
11145: if (!$passedsymb) {
11146: $symb=&symbread();
11147: } else {
11148: $symb=$passedsymb;
11149: }
11150: $courseid=$env{'request.course.id'};
11151: $domain=$env{'user.domain'};
11152: $name=$env{'user.name'};
11153: if ($name eq 'public' && $domain eq 'public') {
11154: if (!defined($env{'form.username'})) {
11155: $env{'form.username'}.=time.rand(10000000);
11156: }
11157: $name.=$env{'form.username'};
11158: }
11159: return ($symb,$courseid,$domain,$name,$publicuser);
11160:
11161: }
11162:
1.36 albertel 11163: # ------------------------------------------------------------ Serves up a file
1.472 albertel 11164: # returns either the contents of the file or
11165: # -1 if the file doesn't exist
1.481 raeburn 11166: #
11167: # if the target is a file that was uploaded via DOCS,
11168: # a check will be made to see if a current copy exists on the local server,
11169: # if it does this will be served, otherwise a copy will be retrieved from
11170: # the home server for the course and stored in /home/httpd/html/userfiles on
11171: # the local server.
1.472 albertel 11172:
1.36 albertel 11173: sub getfile {
1.538 albertel 11174: my ($file) = @_;
1.609 banghart 11175: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 11176: &repcopy($file);
11177: return &readfile($file);
11178: }
11179:
11180: sub repcopy_userfile {
11181: my ($file)=@_;
1.1142 raeburn 11182: my $londocroot = $perlvar{'lonDocRoot'};
11183: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 11184: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 11185: my ($cdom,$cnum,$filename) =
1.811 albertel 11186: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 11187: my $uri="/uploaded/$cdom/$cnum/$filename";
11188: if (-e "$file") {
1.828 www 11189: # we already have a local copy, check it out
1.538 albertel 11190: my @fileinfo = stat($file);
1.828 www 11191: my $rtncode;
11192: my $info;
1.538 albertel 11193: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 11194: if ($lwpresp ne 'ok') {
1.828 www 11195: # there is no such file anymore, even though we had a local copy
1.482 albertel 11196: if ($rtncode eq '404') {
1.538 albertel 11197: unlink($file);
1.482 albertel 11198: }
11199: return -1;
11200: }
11201: if ($info < $fileinfo[9]) {
1.828 www 11202: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 11203: return 'ok';
1.828 www 11204: } else {
11205: # the file is outdated, get rid of it
11206: unlink($file);
1.482 albertel 11207: }
1.828 www 11208: }
11209: # one way or the other, at this point, we don't have the file
11210: # construct the correct path for the file
11211: my @parts = ($cdom,$cnum);
11212: if ($filename =~ m|^(.+)/[^/]+$|) {
11213: push @parts, split(/\//,$1);
11214: }
11215: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
11216: foreach my $part (@parts) {
11217: $path .= '/'.$part;
11218: if (!-e $path) {
11219: mkdir($path,0770);
1.482 albertel 11220: }
11221: }
1.828 www 11222: # now the path exists for sure
11223: # get a user agent
11224: my $ua=new LWP::UserAgent;
11225: my $transferfile=$file.'.in.transfer';
11226: # FIXME: this should flock
11227: if (-e $transferfile) { return 'ok'; }
11228: my $request;
11229: $uri=~s/^\///;
1.980 raeburn 11230: my $homeserver = &homeserver($cnum,$cdom);
11231: my $protocol = $protocol{$homeserver};
11232: $protocol = 'http' if ($protocol ne 'https');
11233: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 11234: my $response=$ua->request($request,$transferfile);
11235: # did it work?
11236: if ($response->is_error()) {
11237: unlink($transferfile);
11238: &logthis("Userfile repcopy failed for $uri");
11239: return -1;
11240: }
11241: # worked, rename the transfer file
11242: rename($transferfile,$file);
1.607 raeburn 11243: return 'ok';
1.481 raeburn 11244: }
11245:
1.517 albertel 11246: sub tokenwrapper {
11247: my $uri=shift;
1.980 raeburn 11248: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 11249: $uri=~s|^/||;
1.620 albertel 11250: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 11251: my $token=$1;
1.552 albertel 11252: my (undef,$udom,$uname,$file)=split('/',$uri,4);
11253: if ($udom && $uname && $file) {
11254: $file=~s|(\?\.*)*$||;
1.949 raeburn 11255: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 11256: my $homeserver = &homeserver($uname,$udom);
11257: my $protocol = $protocol{$homeserver};
11258: $protocol = 'http' if ($protocol ne 'https');
11259: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 11260: (($uri=~/\?/)?'&':'?').'token='.$token.
11261: '&tokenissued='.$perlvar{'lonHostID'};
11262: } else {
11263: return '/adm/notfound.html';
11264: }
11265: }
11266:
1.828 www 11267: # call with reqtype HEAD: get last modification time
11268: # call with reqtype GET: get the file contents
11269: # Do not call this with reqtype GET for large files! It loads everything into memory
11270: #
1.481 raeburn 11271: sub getuploaded {
11272: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
11273: $uri=~s/^\///;
1.980 raeburn 11274: my $homeserver = &homeserver($cnum,$cdom);
11275: my $protocol = $protocol{$homeserver};
11276: $protocol = 'http' if ($protocol ne 'https');
11277: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 11278: my $ua=new LWP::UserAgent;
11279: my $request=new HTTP::Request($reqtype,$uri);
11280: my $response=$ua->request($request);
11281: $$rtncode = $response->code;
1.482 albertel 11282: if (! $response->is_success()) {
11283: return 'failed';
11284: }
11285: if ($reqtype eq 'HEAD') {
1.486 www 11286: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 11287: } elsif ($reqtype eq 'GET') {
11288: $$info = $response->content;
1.472 albertel 11289: }
1.482 albertel 11290: return 'ok';
1.36 albertel 11291: }
11292:
1.481 raeburn 11293: sub readfile {
11294: my $file = shift;
11295: if ( (! -e $file ) || ($file eq '') ) { return -1; };
11296: my $fh;
11297: open($fh,"<$file");
11298: my $a='';
1.800 albertel 11299: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 11300: return $a;
11301: }
11302:
1.36 albertel 11303: sub filelocation {
1.590 banghart 11304: my ($dir,$file) = @_;
11305: my $location;
11306: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 11307:
11308: if ($file =~ m-^/adm/-) {
11309: $file=~s-^/adm/wrapper/-/-;
11310: $file=~s-^/adm/coursedocs/showdoc/-/-;
11311: }
1.882 albertel 11312:
1.1139 www 11313: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 11314: $location = $file;
1.609 banghart 11315: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 11316: my ($udom,$uname,$filename)=
1.811 albertel 11317: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 11318: my $home=&homeserver($uname,$udom);
11319: my $is_me=0;
11320: my @ids=¤t_machine_ids();
11321: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
11322: if ($is_me) {
1.1117 foxr 11323: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 11324: } else {
11325: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
11326: $udom.'/'.$uname.'/'.$filename;
11327: }
1.882 albertel 11328: } elsif ($file =~ m-^/adm/-) {
11329: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 11330: } else {
11331: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 11332: $file=~s:^/(res|priv)/:/:;
11333: my $space=$1;
1.590 banghart 11334: if ( !( $file =~ m:^/:) ) {
11335: $location = $dir. '/'.$file;
11336: } else {
1.1142 raeburn 11337: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 11338: }
1.59 albertel 11339: }
1.590 banghart 11340: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 11341: while ($location=~m{/\.\./}) {
11342: if ($location =~ m{/[^/]+/\.\./}) {
11343: $location=~ s{/[^/]+/\.\./}{/}g;
11344: } else {
11345: $location=~ s{/\.\./}{/}g;
11346: }
11347: } #remove dir/..
1.590 banghart 11348: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
11349: return $location;
1.46 www 11350: }
1.36 albertel 11351:
1.46 www 11352: sub hreflocation {
11353: my ($dir,$file)=@_;
1.980 raeburn 11354: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 11355: $file=filelocation($dir,$file);
1.700 albertel 11356: } elsif ($file=~m-^/adm/-) {
11357: $file=~s-^/adm/wrapper/-/-;
11358: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 11359: }
11360: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
11361: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
11362: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 11363: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
11364: {/uploaded/$1/$2/}x;
1.46 www 11365: }
1.913 albertel 11366: if ($file=~ m{^/userfiles/}) {
11367: $file =~ s{^/userfiles/}{/uploaded/};
11368: }
1.462 albertel 11369: return $file;
1.465 albertel 11370: }
11371:
1.1139 www 11372:
11373:
11374:
11375:
1.465 albertel 11376: sub current_machine_domains {
1.853 albertel 11377: return &machine_domains(&hostname($perlvar{'lonHostID'}));
11378: }
11379:
11380: sub machine_domains {
11381: my ($hostname) = @_;
1.465 albertel 11382: my @domains;
1.838 albertel 11383: my %hostname = &all_hostnames();
1.465 albertel 11384: while( my($id, $name) = each(%hostname)) {
1.467 matthew 11385: # &logthis("-$id-$name-$hostname-");
1.465 albertel 11386: if ($hostname eq $name) {
1.844 albertel 11387: push(@domains,&host_domain($id));
1.465 albertel 11388: }
11389: }
11390: return @domains;
11391: }
11392:
11393: sub current_machine_ids {
1.853 albertel 11394: return &machine_ids(&hostname($perlvar{'lonHostID'}));
11395: }
11396:
11397: sub machine_ids {
11398: my ($hostname) = @_;
11399: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 11400: my @ids;
1.888 albertel 11401: my %name_to_host = &all_names();
1.889 albertel 11402: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
11403: return @{ $name_to_host{$hostname} };
11404: }
11405: return;
1.31 www 11406: }
11407:
1.824 raeburn 11408: sub additional_machine_domains {
11409: my @domains;
11410: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
11411: while( my $line = <$fh>) {
11412: $line =~ s/\s//g;
11413: push(@domains,$line);
11414: }
11415: return @domains;
11416: }
11417:
11418: sub default_login_domain {
11419: my $domain = $perlvar{'lonDefDomain'};
11420: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
11421: foreach my $posdom (¤t_machine_domains(),
11422: &additional_machine_domains()) {
11423: if (lc($posdom) eq lc($testdomain)) {
11424: $domain=$posdom;
11425: last;
11426: }
11427: }
11428: return $domain;
11429: }
11430:
1.31 www 11431: # ------------------------------------------------------------- Declutters URLs
11432:
11433: sub declutter {
11434: my $thisfn=shift;
1.569 albertel 11435: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 11436: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 11437: $thisfn=~s/^\///;
1.697 albertel 11438: $thisfn=~s|^adm/wrapper/||;
11439: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 11440: $thisfn=~s/^res\///;
1.1172 bisitz 11441: $thisfn=~s/^priv\///;
1.1032 raeburn 11442: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
11443: $thisfn=~s/\?.+$//;
11444: }
1.268 www 11445: return $thisfn;
11446: }
11447:
11448: # ------------------------------------------------------------- Clutter up URLs
11449:
11450: sub clutter {
11451: my $thisfn='/'.&declutter(shift);
1.887 albertel 11452: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 11453: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 11454: $thisfn='/res'.$thisfn;
11455: }
1.1031 raeburn 11456: if ($thisfn !~m|^/adm|) {
11457: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 11458: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 11459: } else {
11460: my ($ext) = ($thisfn =~ /\.(\w+)$/);
11461: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 11462: if ($embstyle eq 'ssi'
11463: || ($embstyle eq 'hdn')
11464: || ($embstyle eq 'rat')
11465: || ($embstyle eq 'prv')
11466: || ($embstyle eq 'ign')) {
11467: #do nothing with these
11468: } elsif (($embstyle eq 'img')
1.695 albertel 11469: || ($embstyle eq 'emb')
11470: || ($embstyle eq 'wrp')) {
11471: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 11472: } elsif ($embstyle eq 'unk'
11473: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 11474: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 11475: } else {
1.718 www 11476: # &logthis("Got a blank emb style");
1.695 albertel 11477: }
1.694 albertel 11478: }
11479: }
1.31 www 11480: return $thisfn;
1.12 www 11481: }
11482:
1.787 albertel 11483: sub clutter_with_no_wrapper {
11484: my $uri = &clutter(shift);
11485: if ($uri =~ m-^/adm/-) {
11486: $uri =~ s-^/adm/wrapper/-/-;
11487: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
11488: }
11489: return $uri;
11490: }
11491:
1.557 albertel 11492: sub freeze_escape {
11493: my ($value)=@_;
11494: if (ref($value)) {
11495: $value=&nfreeze($value);
11496: return '__FROZEN__'.&escape($value);
11497: }
11498: return &escape($value);
11499: }
11500:
1.11 www 11501:
1.557 albertel 11502: sub thaw_unescape {
11503: my ($value)=@_;
11504: if ($value =~ /^__FROZEN__/) {
11505: substr($value,0,10,undef);
11506: $value=&unescape($value);
11507: return &thaw($value);
11508: }
11509: return &unescape($value);
11510: }
11511:
1.436 albertel 11512: sub correct_line_ends {
11513: my ($result)=@_;
11514: $$result =~s/\r\n/\n/mg;
11515: $$result =~s/\r/\n/mg;
1.415 albertel 11516: }
1.1 albertel 11517: # ================================================================ Main Program
11518:
1.184 www 11519: sub goodbye {
1.204 albertel 11520: &logthis("Starting Shut down");
1.443 albertel 11521: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 11522: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 11523: #converted
1.599 albertel 11524: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 11525: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
11526: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
11527: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 11528: #1.1 only
1.870 albertel 11529: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
11530: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
11531: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
11532: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
11533: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 11534: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
11535: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 11536: &flushcourselogs();
11537: &logthis("Shutting down");
11538: }
11539:
1.852 albertel 11540: sub get_dns {
1.869 albertel 11541: my ($url,$func,$ignore_cache) = @_;
11542: if (!$ignore_cache) {
11543: my ($content,$cached)=
11544: &Apache::lonnet::is_cached_new('dns',$url);
11545: if ($cached) {
11546: &$func($content);
11547: return;
11548: }
11549: }
11550:
11551: my %alldns;
1.852 albertel 11552: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11553: foreach my $dns (<$config>) {
11554: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 11555: my $line = $1;
11556: my ($host,$protocol) = split(/:/,$line);
11557: if ($protocol ne 'https') {
11558: $protocol = 'http';
11559: }
11560: $alldns{$host} = $protocol;
1.869 albertel 11561: }
11562: while (%alldns) {
11563: my ($dns) = keys(%alldns);
1.852 albertel 11564: my $ua=new LWP::UserAgent;
1.1134 raeburn 11565: $ua->timeout(30);
1.979 raeburn 11566: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 11567: my $response=$ua->request($request);
1.979 raeburn 11568: delete($alldns{$dns});
1.852 albertel 11569: next if ($response->is_error());
11570: my @content = split("\n",$response->content);
1.869 albertel 11571: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 11572: &$func(\@content);
1.869 albertel 11573: return;
1.852 albertel 11574: }
11575: close($config);
1.871 albertel 11576: my $which = (split('/',$url))[3];
11577: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
11578: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 11579: my @content = <$config>;
11580: &$func(\@content);
11581: return;
1.852 albertel 11582: }
1.327 albertel 11583: # ------------------------------------------------------------ Read domain file
11584: {
1.852 albertel 11585: my $loaded;
1.846 albertel 11586: my %domain;
11587:
1.852 albertel 11588: sub parse_domain_tab {
11589: my ($lines) = @_;
11590: foreach my $line (@$lines) {
11591: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 11592:
1.846 albertel 11593: chomp($line);
1.852 albertel 11594: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 11595: my %this_domain;
11596: foreach my $field ('description', 'auth_def', 'auth_arg_def',
11597: 'lang_def', 'city', 'longi', 'lati',
11598: 'primary') {
11599: $this_domain{$field} = shift(@elements);
11600: }
11601: $domain{$name} = \%this_domain;
1.852 albertel 11602: }
11603: }
1.864 albertel 11604:
11605: sub reset_domain_info {
11606: undef($loaded);
11607: undef(%domain);
11608: }
11609:
1.852 albertel 11610: sub load_domain_tab {
1.869 albertel 11611: my ($ignore_cache) = @_;
11612: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 11613: my $fh;
11614: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
11615: my @lines = <$fh>;
11616: &parse_domain_tab(\@lines);
1.448 albertel 11617: }
1.852 albertel 11618: close($fh);
11619: $loaded = 1;
1.327 albertel 11620: }
1.846 albertel 11621:
11622: sub domain {
1.852 albertel 11623: &load_domain_tab() if (!$loaded);
11624:
1.846 albertel 11625: my ($name,$what) = @_;
11626: return if ( !exists($domain{$name}) );
11627:
11628: if (!$what) {
11629: return $domain{$name}{'description'};
11630: }
11631: return $domain{$name}{$what};
11632: }
1.974 raeburn 11633:
11634: sub domain_info {
11635: &load_domain_tab() if (!$loaded);
11636: return %domain;
11637: }
11638:
1.327 albertel 11639: }
11640:
11641:
1.1 albertel 11642: # ------------------------------------------------------------- Read hosts file
11643: {
1.838 albertel 11644: my %hostname;
1.844 albertel 11645: my %hostdom;
1.845 albertel 11646: my %libserv;
1.852 albertel 11647: my $loaded;
1.888 albertel 11648: my %name_to_host;
1.1074 raeburn 11649: my %internetdom;
1.1107 raeburn 11650: my %LC_dns_serv;
1.852 albertel 11651:
11652: sub parse_hosts_tab {
11653: my ($file) = @_;
11654: foreach my $configline (@$file) {
11655: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 11656: chomp($configline);
11657: if ($configline =~ /^\^/) {
11658: if ($configline =~ /^\^([\w.\-]+)/) {
11659: $LC_dns_serv{$1} = 1;
11660: }
11661: next;
11662: }
1.1074 raeburn 11663: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 11664: $name=~s/\s//g;
11665: if ($id && $domain && $role && $name) {
11666: $hostname{$id}=$name;
1.888 albertel 11667: push(@{$name_to_host{$name}}, $id);
1.852 albertel 11668: $hostdom{$id}=$domain;
11669: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 11670: if (defined($protocol)) {
11671: if ($protocol eq 'https') {
11672: $protocol{$id} = $protocol;
11673: } else {
11674: $protocol{$id} = 'http';
11675: }
1.968 raeburn 11676: } else {
1.969 raeburn 11677: $protocol{$id} = 'http';
1.968 raeburn 11678: }
1.1074 raeburn 11679: if (defined($intdom)) {
11680: $internetdom{$id} = $intdom;
11681: }
1.852 albertel 11682: }
11683: }
11684: }
1.864 albertel 11685:
11686: sub reset_hosts_info {
1.897 albertel 11687: &purge_remembered();
1.864 albertel 11688: &reset_domain_info();
11689: &reset_hosts_ip_info();
1.892 albertel 11690: undef(%name_to_host);
1.864 albertel 11691: undef(%hostname);
11692: undef(%hostdom);
11693: undef(%libserv);
11694: undef($loaded);
11695: }
1.1 albertel 11696:
1.852 albertel 11697: sub load_hosts_tab {
1.869 albertel 11698: my ($ignore_cache) = @_;
11699: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 11700: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11701: my @config = <$config>;
11702: &parse_hosts_tab(\@config);
11703: close($config);
11704: $loaded=1;
1.1 albertel 11705: }
1.852 albertel 11706:
1.838 albertel 11707: sub hostname {
1.852 albertel 11708: &load_hosts_tab() if (!$loaded);
11709:
1.838 albertel 11710: my ($lonid) = @_;
11711: return $hostname{$lonid};
11712: }
1.845 albertel 11713:
1.838 albertel 11714: sub all_hostnames {
1.852 albertel 11715: &load_hosts_tab() if (!$loaded);
11716:
1.838 albertel 11717: return %hostname;
11718: }
1.845 albertel 11719:
1.888 albertel 11720: sub all_names {
11721: &load_hosts_tab() if (!$loaded);
11722:
11723: return %name_to_host;
11724: }
11725:
1.974 raeburn 11726: sub all_host_domain {
11727: &load_hosts_tab() if (!$loaded);
11728: return %hostdom;
11729: }
11730:
1.845 albertel 11731: sub is_library {
1.852 albertel 11732: &load_hosts_tab() if (!$loaded);
11733:
1.845 albertel 11734: return exists($libserv{$_[0]});
11735: }
11736:
11737: sub all_library {
1.852 albertel 11738: &load_hosts_tab() if (!$loaded);
11739:
1.845 albertel 11740: return %libserv;
11741: }
11742:
1.1062 droeschl 11743: sub unique_library {
11744: #2x reverse removes all hostnames that appear more than once
11745: my %unique = reverse &all_library();
11746: return reverse %unique;
11747: }
11748:
1.841 albertel 11749: sub get_servers {
1.852 albertel 11750: &load_hosts_tab() if (!$loaded);
11751:
1.841 albertel 11752: my ($domain,$type) = @_;
11753: my %possible_hosts = ($type eq 'library') ? %libserv
11754: : %hostname;
11755: my %result;
1.842 albertel 11756: if (ref($domain) eq 'ARRAY') {
11757: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 11758: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 11759: $result{$host} = $hostname;
11760: }
11761: }
11762: } else {
11763: while ( my ($host,$hostname) = each(%possible_hosts)) {
11764: if ($hostdom{$host} eq $domain) {
11765: $result{$host} = $hostname;
11766: }
1.841 albertel 11767: }
11768: }
11769: return %result;
11770: }
1.845 albertel 11771:
1.1062 droeschl 11772: sub get_unique_servers {
11773: my %unique = reverse &get_servers(@_);
11774: return reverse %unique;
11775: }
11776:
1.844 albertel 11777: sub host_domain {
1.852 albertel 11778: &load_hosts_tab() if (!$loaded);
11779:
1.844 albertel 11780: my ($lonid) = @_;
11781: return $hostdom{$lonid};
11782: }
11783:
1.841 albertel 11784: sub all_domains {
1.852 albertel 11785: &load_hosts_tab() if (!$loaded);
11786:
1.841 albertel 11787: my %seen;
11788: my @uniq = grep(!$seen{$_}++, values(%hostdom));
11789: return @uniq;
11790: }
1.1074 raeburn 11791:
11792: sub internet_dom {
11793: &load_hosts_tab() if (!$loaded);
11794:
11795: my ($lonid) = @_;
11796: return $internetdom{$lonid};
11797: }
1.1107 raeburn 11798:
11799: sub is_LC_dns {
11800: &load_hosts_tab() if (!$loaded);
11801:
11802: my ($hostname) = @_;
11803: return exists($LC_dns_serv{$hostname});
11804: }
11805:
1.1 albertel 11806: }
11807:
1.847 albertel 11808: {
11809: my %iphost;
1.856 albertel 11810: my %name_to_ip;
11811: my %lonid_to_ip;
1.869 albertel 11812:
1.847 albertel 11813: sub get_hosts_from_ip {
11814: my ($ip) = @_;
11815: my %iphosts = &get_iphost();
11816: if (ref($iphosts{$ip})) {
11817: return @{$iphosts{$ip}};
11818: }
11819: return;
1.839 albertel 11820: }
1.864 albertel 11821:
11822: sub reset_hosts_ip_info {
11823: undef(%iphost);
11824: undef(%name_to_ip);
11825: undef(%lonid_to_ip);
11826: }
1.856 albertel 11827:
11828: sub get_host_ip {
11829: my ($lonid) = @_;
11830: if (exists($lonid_to_ip{$lonid})) {
11831: return $lonid_to_ip{$lonid};
11832: }
11833: my $name=&hostname($lonid);
11834: my $ip = gethostbyname($name);
11835: return if (!$ip || length($ip) ne 4);
11836: $ip=inet_ntoa($ip);
11837: $name_to_ip{$name} = $ip;
11838: $lonid_to_ip{$lonid} = $ip;
11839: return $ip;
11840: }
1.847 albertel 11841:
11842: sub get_iphost {
1.869 albertel 11843: my ($ignore_cache) = @_;
1.894 albertel 11844:
1.869 albertel 11845: if (!$ignore_cache) {
11846: if (%iphost) {
11847: return %iphost;
11848: }
11849: my ($ip_info,$cached)=
11850: &Apache::lonnet::is_cached_new('iphost','iphost');
11851: if ($cached) {
11852: %iphost = %{$ip_info->[0]};
11853: %name_to_ip = %{$ip_info->[1]};
11854: %lonid_to_ip = %{$ip_info->[2]};
11855: return %iphost;
11856: }
11857: }
1.894 albertel 11858:
11859: # get yesterday's info for fallback
11860: my %old_name_to_ip;
11861: my ($ip_info,$cached)=
11862: &Apache::lonnet::is_cached_new('iphost','iphost');
11863: if ($cached) {
11864: %old_name_to_ip = %{$ip_info->[1]};
11865: }
11866:
1.888 albertel 11867: my %name_to_host = &all_names();
11868: foreach my $name (keys(%name_to_host)) {
1.847 albertel 11869: my $ip;
11870: if (!exists($name_to_ip{$name})) {
11871: $ip = gethostbyname($name);
11872: if (!$ip || length($ip) ne 4) {
1.894 albertel 11873: if (defined($old_name_to_ip{$name})) {
11874: $ip = $old_name_to_ip{$name};
11875: &logthis("Can't find $name defaulting to old $ip");
11876: } else {
11877: &logthis("Name $name no IP found");
11878: next;
11879: }
11880: } else {
11881: $ip=inet_ntoa($ip);
1.847 albertel 11882: }
11883: $name_to_ip{$name} = $ip;
11884: } else {
11885: $ip = $name_to_ip{$name};
1.653 albertel 11886: }
1.888 albertel 11887: foreach my $id (@{ $name_to_host{$name} }) {
11888: $lonid_to_ip{$id} = $ip;
11889: }
11890: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 11891: }
1.869 albertel 11892: &Apache::lonnet::do_cache_new('iphost','iphost',
11893: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 11894: 48*60*60);
1.869 albertel 11895:
1.847 albertel 11896: return %iphost;
1.598 albertel 11897: }
11898:
1.992 raeburn 11899: #
11900: # Given a DNS returns the loncapa host name for that DNS
11901: #
11902: sub host_from_dns {
11903: my ($dns) = @_;
11904: my @hosts;
11905: my $ip;
11906:
1.993 raeburn 11907: if (exists($name_to_ip{$dns})) {
1.992 raeburn 11908: $ip = $name_to_ip{$dns};
11909: }
11910: if (!$ip) {
11911: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
11912: if (length($ip) == 4) {
11913: $ip = &IO::Socket::inet_ntoa($ip);
11914: }
11915: }
11916: if ($ip) {
11917: @hosts = get_hosts_from_ip($ip);
11918: return $hosts[0];
11919: }
11920: return undef;
1.986 foxr 11921: }
1.992 raeburn 11922:
1.1074 raeburn 11923: sub get_internet_names {
11924: my ($lonid) = @_;
11925: return if ($lonid eq '');
11926: my ($idnref,$cached)=
11927: &Apache::lonnet::is_cached_new('internetnames',$lonid);
11928: if ($cached) {
11929: return $idnref;
11930: }
11931: my $ip = &get_host_ip($lonid);
11932: my @hosts = &get_hosts_from_ip($ip);
11933: my %iphost = &get_iphost();
11934: my (@idns,%seen);
11935: foreach my $id (@hosts) {
11936: my $dom = &host_domain($id);
11937: my $prim_id = &domain($dom,'primary');
11938: my $prim_ip = &get_host_ip($prim_id);
11939: next if ($seen{$prim_ip});
11940: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
11941: foreach my $id (@{$iphost{$prim_ip}}) {
11942: my $intdom = &internet_dom($id);
11943: unless (grep(/^\Q$intdom\E$/,@idns)) {
11944: push(@idns,$intdom);
11945: }
11946: }
11947: }
11948: $seen{$prim_ip} = 1;
11949: }
11950: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
11951: }
11952:
1.986 foxr 11953: }
11954:
1.1079 raeburn 11955: sub all_loncaparevs {
11956: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
11957: }
11958:
1.862 albertel 11959: BEGIN {
11960:
11961: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
11962: unless ($readit) {
11963: {
11964: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
11965: %perlvar = (%perlvar,%{$configvars});
11966: }
11967:
11968:
1.1 albertel 11969: # ------------------------------------------------------ Read spare server file
11970: {
1.448 albertel 11971: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 11972:
11973: while (my $configline=<$config>) {
11974: chomp($configline);
1.284 matthew 11975: if ($configline) {
1.784 albertel 11976: my ($host,$type) = split(':',$configline,2);
1.785 albertel 11977: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 11978: push(@{ $spareid{$type} }, $host);
1.1 albertel 11979: }
11980: }
1.448 albertel 11981: close($config);
1.1 albertel 11982: }
1.11 www 11983: # ------------------------------------------------------------ Read permissions
11984: {
1.448 albertel 11985: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 11986:
11987: while (my $configline=<$config>) {
1.448 albertel 11988: chomp($configline);
11989: if ($configline) {
11990: my ($role,$perm)=split(/ /,$configline);
11991: if ($perm ne '') { $pr{$role}=$perm; }
11992: }
1.11 www 11993: }
1.448 albertel 11994: close($config);
1.11 www 11995: }
11996:
11997: # -------------------------------------------- Read plain texts for permissions
11998: {
1.448 albertel 11999: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 12000:
12001: while (my $configline=<$config>) {
1.448 albertel 12002: chomp($configline);
12003: if ($configline) {
1.742 raeburn 12004: my ($short,@plain)=split(/:/,$configline);
12005: %{$prp{$short}} = ();
12006: if (@plain > 0) {
12007: $prp{$short}{'std'} = $plain[0];
12008: for (my $i=1; $i<@plain; $i++) {
12009: $prp{$short}{'alt'.$i} = $plain[$i];
12010: }
12011: }
1.448 albertel 12012: }
1.135 www 12013: }
1.448 albertel 12014: close($config);
1.135 www 12015: }
12016:
12017: # ---------------------------------------------------------- Read package table
12018: {
1.448 albertel 12019: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 12020:
12021: while (my $configline=<$config>) {
1.483 albertel 12022: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 12023: chomp($configline);
12024: my ($short,$plain)=split(/:/,$configline);
12025: my ($pack,$name)=split(/\&/,$short);
12026: if ($plain ne '') {
12027: $packagetab{$pack.'&'.$name.'&name'}=$name;
12028: $packagetab{$short}=$plain;
12029: }
1.11 www 12030: }
1.448 albertel 12031: close($config);
1.329 matthew 12032: }
12033:
1.1073 raeburn 12034: # ---------------------------------------------------------- Read loncaparev table
12035: {
12036: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
12037: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
12038: while (my $configline=<$config>) {
12039: chomp($configline);
12040: my ($hostid,$loncaparev)=split(/:/,$configline);
12041: $loncaparevs{$hostid}=$loncaparev;
12042: }
12043: close($config);
12044: }
12045: }
12046: }
12047:
1.1074 raeburn 12048: # ---------------------------------------------------------- Read serverhostID table
12049: {
12050: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
12051: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
12052: while (my $configline=<$config>) {
12053: chomp($configline);
12054: my ($name,$id)=split(/:/,$configline);
12055: $serverhomeIDs{$name}=$id;
12056: }
12057: close($config);
12058: }
12059: }
12060: }
12061:
1.1079 raeburn 12062: {
12063: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
12064: if (-e $file) {
12065: my $parser = HTML::LCParser->new($file);
12066: while (my $token = $parser->get_token()) {
12067: if ($token->[0] eq 'S') {
12068: my $item = $token->[1];
12069: my $name = $token->[2]{'name'};
12070: my $value = $token->[2]{'value'};
12071: if ($item ne '' && $name ne '' && $value ne '') {
12072: my $release = $parser->get_text();
12073: $release =~ s/(^\s*|\s*$ )//gx;
12074: $needsrelease{$item.':'.$name.':'.$value} = $release;
12075: }
12076: }
12077: }
12078: }
1.1073 raeburn 12079: }
12080:
1.1138 raeburn 12081: # ---------------------------------------------------------- Read managers table
12082: {
12083: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
12084: if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
12085: while (my $configline=<$config>) {
12086: chomp($configline);
12087: next if ($configline =~ /^\#/);
12088: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
12089: $managerstab{$configline} = 1;
12090: }
12091: }
12092: close($config);
12093: }
12094: }
12095: }
12096:
1.329 matthew 12097: # ------------- set up temporary directory
12098: {
1.1117 foxr 12099: $tmpdir = LONCAPA::tempdir();
1.329 matthew 12100:
1.11 www 12101: }
12102:
1.794 albertel 12103: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
12104: 'compress_threshold'=> 20_000,
12105: });
1.185 www 12106:
1.281 www 12107: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 12108: $dumpcount=0;
1.958 www 12109: $locknum=0;
1.22 www 12110:
1.163 harris41 12111: &logtouch();
1.672 albertel 12112: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 12113: $readit=1;
1.564 albertel 12114: {
12115: use integer;
12116: my $test=(2**32)+1;
1.568 albertel 12117: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 12118: &logthis(" Detected 64bit platform ($_64bit)");
12119: }
1.195 www 12120: }
1.1 albertel 12121: }
1.179 www 12122:
1.1 albertel 12123: 1;
1.191 harris41 12124: __END__
12125:
1.243 albertel 12126: =pod
12127:
1.191 harris41 12128: =head1 NAME
12129:
1.243 albertel 12130: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 12131:
12132: =head1 SYNOPSIS
12133:
1.243 albertel 12134: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 12135:
12136: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
12137:
1.243 albertel 12138: Common parameters:
12139:
12140: =over 4
12141:
12142: =item *
12143:
12144: $uname : an internal username (if $cname expecting a course Id specifically)
12145:
12146: =item *
12147:
12148: $udom : a domain (if $cdom expecting a course's domain specifically)
12149:
12150: =item *
12151:
12152: $symb : a resource instance identifier
12153:
12154: =item *
12155:
12156: $namespace : the name of a .db file that contains the data needed or
12157: being set.
12158:
12159: =back
12160:
1.394 bowersj2 12161: =head1 OVERVIEW
1.191 harris41 12162:
1.394 bowersj2 12163: lonnet provides subroutines which interact with the
12164: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
12165: about classes, users, and resources.
1.243 albertel 12166:
12167: For many of these objects you can also use this to store data about
12168: them or modify them in various ways.
1.191 harris41 12169:
1.394 bowersj2 12170: =head2 Symbs
1.191 harris41 12171:
1.394 bowersj2 12172: To identify a specific instance of a resource, LON-CAPA uses symbols
12173: or "symbs"X<symb>. These identifiers are built from the URL of the
12174: map, the resource number of the resource in the map, and the URL of
12175: the resource itself. The latter is somewhat redundant, but might help
12176: if maps change.
12177:
12178: An example is
12179:
12180: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
12181:
12182: The respective map entry is
12183:
12184: <resource id="19" src="/res/msu/korte/tests/part12.problem"
12185: title="Problem 2">
12186: </resource>
12187:
12188: Symbs are used by the random number generator, as well as to store and
12189: restore data specific to a certain instance of for example a problem.
12190:
12191: =head2 Storing And Retrieving Data
12192:
12193: X<store()>X<cstore()>X<restore()>Three of the most important functions
12194: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
12195: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
12196: is is the non-critical message twin of cstore. These functions are for
12197: handlers to store a perl hash to a user's permanent data space in an
12198: easy manner, and to retrieve it again on another call. It is expected
12199: that a handler would use this once at the beginning to retrieve data,
12200: and then again once at the end to send only the new data back.
12201:
12202: The data is stored in the user's data directory on the user's
12203: homeserver under the ID of the course.
12204:
12205: The hash that is returned by restore will have all of the previous
12206: value for all of the elements of the hash.
12207:
12208: Example:
12209:
12210: #creating a hash
12211: my %hash;
12212: $hash{'foo'}='bar';
12213:
12214: #storing it
12215: &Apache::lonnet::cstore(\%hash);
12216:
12217: #changing a value
12218: $hash{'foo'}='notbar';
12219:
12220: #adding a new value
12221: $hash{'bar'}='foo';
12222: &Apache::lonnet::cstore(\%hash);
12223:
12224: #retrieving the hash
12225: my %history=&Apache::lonnet::restore();
12226:
12227: #print the hash
12228: foreach my $key (sort(keys(%history))) {
12229: print("\%history{$key} = $history{$key}");
12230: }
12231:
12232: Will print out:
1.191 harris41 12233:
1.394 bowersj2 12234: %history{1:foo} = bar
12235: %history{1:keys} = foo:timestamp
12236: %history{1:timestamp} = 990455579
12237: %history{2:bar} = foo
12238: %history{2:foo} = notbar
12239: %history{2:keys} = foo:bar:timestamp
12240: %history{2:timestamp} = 990455580
12241: %history{bar} = foo
12242: %history{foo} = notbar
12243: %history{timestamp} = 990455580
12244: %history{version} = 2
12245:
12246: Note that the special hash entries C<keys>, C<version> and
12247: C<timestamp> were added to the hash. C<version> will be equal to the
12248: total number of versions of the data that have been stored. The
12249: C<timestamp> attribute will be the UNIX time the hash was
12250: stored. C<keys> is available in every historical section to list which
12251: keys were added or changed at a specific historical revision of a
12252: hash.
12253:
12254: B<Warning>: do not store the hash that restore returns directly. This
12255: will cause a mess since it will restore the historical keys as if the
12256: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 12257:
1.394 bowersj2 12258: Calling convention:
1.191 harris41 12259:
1.394 bowersj2 12260: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
12261: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 12262:
1.394 bowersj2 12263: For more detailed information, see lonnet specific documentation.
1.191 harris41 12264:
1.394 bowersj2 12265: =head1 RETURN MESSAGES
1.191 harris41 12266:
1.394 bowersj2 12267: =over 4
1.191 harris41 12268:
1.394 bowersj2 12269: =item * B<con_lost>: unable to contact remote host
1.191 harris41 12270:
1.394 bowersj2 12271: =item * B<con_delayed>: unable to contact remote host, message will be delivered
12272: when the connection is brought back up
1.191 harris41 12273:
1.394 bowersj2 12274: =item * B<con_failed>: unable to contact remote host and unable to save message
12275: for later delivery
1.191 harris41 12276:
1.967 bisitz 12277: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 12278:
1.394 bowersj2 12279: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 12280: that was requested
1.191 harris41 12281:
1.243 albertel 12282: =back
1.191 harris41 12283:
1.243 albertel 12284: =head1 PUBLIC SUBROUTINES
1.191 harris41 12285:
1.243 albertel 12286: =head2 Session Environment Functions
1.191 harris41 12287:
1.243 albertel 12288: =over 4
1.191 harris41 12289:
1.394 bowersj2 12290: =item *
12291: X<appenv()>
1.949 raeburn 12292: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 12293: the user envirnoment file, and will be restored for each access this
1.620 albertel 12294: user makes during this session, also modifies the %env for the current
1.949 raeburn 12295: process. Optional rolesarrayref - if defined contains a reference to an array
12296: of roles which are exempt from the restriction on modifying user.role entries
12297: in the user's environment.db and in %env.
1.191 harris41 12298:
12299: =item *
1.394 bowersj2 12300: X<delenv()>
1.987 raeburn 12301: B<delenv($delthis,$regexp)>: removes all items from the session
12302: environment file that begin with $delthis. If the
12303: optional second arg - $regexp - is true, $delthis is treated as a
12304: regular expression, otherwise \Q$delthis\E is used.
12305: The values are also deleted from the current processes %env.
1.191 harris41 12306:
1.795 albertel 12307: =item * get_env_multiple($name)
12308:
12309: gets $name from the %env hash, it seemlessly handles the cases where multiple
12310: values may be defined and end up as an array ref.
12311:
12312: returns an array of values
12313:
1.243 albertel 12314: =back
12315:
12316: =head2 User Information
1.191 harris41 12317:
1.243 albertel 12318: =over 4
1.191 harris41 12319:
12320: =item *
1.394 bowersj2 12321: X<queryauthenticate()>
12322: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 12323: authentication scheme
12324:
12325: =item *
1.394 bowersj2 12326: X<authenticate()>
1.1073 raeburn 12327: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 12328: authenticate user from domain's lib servers (first use the current
12329: one). C<$upass> should be the users password.
1.1073 raeburn 12330: $checkdefauth is optional (value is 1 if a check should be made to
12331: authenticate user using default authentication method, and allow
12332: account creation if username does not have account in the domain).
12333: $clientcancheckhost is optional (value is 1 if checking whether the
12334: server can host will occur on the client side in lonauth.pm).
1.191 harris41 12335:
12336: =item *
1.394 bowersj2 12337: X<homeserver()>
12338: B<homeserver($uname,$udom)>: find the server which has
12339: the user's directory and files (there must be only one), this caches
12340: the answer, and also caches if there is a borken connection.
1.191 harris41 12341:
12342: =item *
1.394 bowersj2 12343: X<idget()>
12344: B<idget($udom,@ids)>: find the usernames behind a list of IDs
12345: (IDs are a unique resource in a domain, there must be only 1 ID per
12346: username, and only 1 username per ID in a specific domain) (returns
12347: hash: id=>name,id=>name)
1.191 harris41 12348:
12349: =item *
1.394 bowersj2 12350: X<idrget()>
12351: B<idrget($udom,@unames)>: find the IDs behind a list of
12352: usernames (returns hash: name=>id,name=>id)
1.191 harris41 12353:
12354: =item *
1.394 bowersj2 12355: X<idput()>
12356: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 12357:
12358: =item *
1.394 bowersj2 12359: X<rolesinit()>
1.1169 droeschl 12360: B<rolesinit($udom,$username)>: get user privileges.
12361: returns user role, first access and timer interval hashes
1.243 albertel 12362:
12363: =item *
1.1171 droeschl 12364: X<privileged()>
12365: B<privileged($username,$domain)>: returns a true if user has a
12366: privileged and active role (i.e. su or dc), false otherwise.
12367:
12368: =item *
1.551 albertel 12369: X<getsection()>
12370: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 12371: course $cname, return section name/number or '' for "not in course"
12372: and '-1' for "no section"
12373:
12374: =item *
1.394 bowersj2 12375: X<userenvironment()>
12376: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 12377: passed in @what from the requested user's environment, returns a hash
12378:
1.858 raeburn 12379: =item *
12380: X<userlog_query()>
1.859 albertel 12381: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
12382: activity.log file. %filters defines filters applied when parsing the
12383: log file. These can be start or end timestamps, or the type of action
12384: - log to look for Login or Logout events, check for Checkin or
12385: Checkout, role for role selection. The response is in the form
12386: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
12387: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 12388:
1.243 albertel 12389: =back
12390:
12391: =head2 User Roles
12392:
12393: =over 4
12394:
12395: =item *
12396:
1.810 raeburn 12397: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 12398: F: full access
12399: U,I,K: authentication modes (cxx only)
12400: '': forbidden
12401: 1: user needs to choose course
12402: 2: browse allowed
1.766 albertel 12403: A: passphrase authentication needed
1.243 albertel 12404:
12405: =item *
12406:
1.1192 raeburn 12407: constructaccess($url,$setpriv) : check for access to construction space URL
12408:
12409: See if the owner domain and name in the URL match those in the
12410: expected environment. If so, return three element list
12411: ($ownername,$ownerdomain,$ownerhome).
12412:
12413: Otherwise return the null string.
12414:
12415: If second argument 'setpriv' is true, it assigns the privileges,
12416: and returns the same three element list, unless the owner has
12417: blocked "ad hoc" Domain Coordinator access to the Author Space,
12418: in which case the null string is returned.
12419:
12420: =item *
12421:
1.243 albertel 12422: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
12423: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
12424: and course level
12425:
12426: =item *
12427:
1.988 raeburn 12428: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
12429: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 12430: $type is Course (default) or Community.
1.988 raeburn 12431: If $forcedefault evaluates to true, text returned will be default
12432: text for $type. Otherwise, if this is a course, the text returned
12433: will be a custom name for the role (if defined in the course's
12434: environment). If no custom name is defined the default is returned.
12435:
1.832 raeburn 12436: =item *
12437:
1.935 raeburn 12438: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 12439: All arguments are optional. Returns a hash of a roles, either for
12440: co-author/assistant author roles for a user's Construction Space
1.906 albertel 12441: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 12442: In the hash, keys are set to colon-separated $uname,$udom,$role, and
12443: (optionally) if $withsec is true, a fourth colon-separated item - $section.
12444: For each key, value is set to colon-separated start and end times for
12445: the role. If no username and domain are specified, will default to
1.934 raeburn 12446: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 12447: of role statuses (active, future or previous), roles
12448: (e.g., cc,in, st etc.) and domains of the roles which can be used
12449: to restrict the list of roles reported. If no array ref is
12450: provided for types, will default to return only active roles.
1.834 albertel 12451:
1.1195 raeburn 12452: =item *
12453:
12454: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
1.1196 raeburn 12455: user: $uname:$udom has a role in the course: $cdom_$cnum.
12456:
12457: Additional optional arguments are: $type (if role checking is to be restricted
12458: to certain user status types -- previous (expired roles), active (currently
1.1195 raeburn 12459: available roles) or future (roles available in the future), and
12460: $hideprivileged -- if true will not report course roles for users who
12461: have active Domain Coordinator or Super User roles.
12462:
1.243 albertel 12463: =back
12464:
12465: =head2 User Modification
12466:
12467: =over 4
12468:
12469: =item *
12470:
1.957 raeburn 12471: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 12472: user for the level given by URL. Optional start and end dates (leave empty
12473: string or zero for "no date")
1.191 harris41 12474:
12475: =item *
12476:
1.243 albertel 12477: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
12478: change a users, password, possible return values are: ok,
12479: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
12480: refused
1.191 harris41 12481:
12482: =item *
12483:
1.243 albertel 12484: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 12485:
12486: =item *
12487:
1.1058 raeburn 12488: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
12489: $forceid,$desiredhome,$email,$inststatus,$candelete) :
12490:
12491: will update user information (firstname,middlename,lastname,generation,
12492: permanentemail), and if forceid is true, student/employee ID also.
12493: A user's institutional affiliation(s) can also be updated.
12494: User information fields will not be overwritten with empty entries
12495: unless the field is included in the $candelete array reference.
12496: This array is included when a single user is modified via "Manage Users",
12497: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 12498:
12499: =item *
12500:
1.286 matthew 12501: modifystudent
12502:
1.957 raeburn 12503: modify a student's enrollment and identification information.
1.286 matthew 12504: The course id is resolved based on the current users environment.
12505: This means the envoking user must be a course coordinator or otherwise
12506: associated with a course.
12507:
1.297 matthew 12508: This call is essentially a wrapper for lonnet::modifyuser and
12509: lonnet::modify_student_enrollment
1.286 matthew 12510:
12511: Inputs:
12512:
12513: =over 4
12514:
1.957 raeburn 12515: =item B<$udom> Student's loncapa domain
1.286 matthew 12516:
1.957 raeburn 12517: =item B<$uname> Student's loncapa login name
1.286 matthew 12518:
1.964 bisitz 12519: =item B<$uid> Student/Employee ID
1.286 matthew 12520:
1.957 raeburn 12521: =item B<$umode> Student's authentication mode
1.286 matthew 12522:
1.957 raeburn 12523: =item B<$upass> Student's password
1.286 matthew 12524:
1.957 raeburn 12525: =item B<$first> Student's first name
1.286 matthew 12526:
1.957 raeburn 12527: =item B<$middle> Student's middle name
1.286 matthew 12528:
1.957 raeburn 12529: =item B<$last> Student's last name
1.286 matthew 12530:
1.957 raeburn 12531: =item B<$gene> Student's generation
1.286 matthew 12532:
1.957 raeburn 12533: =item B<$usec> Student's section in course
1.286 matthew 12534:
12535: =item B<$end> Unix time of the roles expiration
12536:
12537: =item B<$start> Unix time of the roles start date
12538:
12539: =item B<$forceid> If defined, allow $uid to be changed
12540:
12541: =item B<$desiredhome> server to use as home server for student
12542:
1.957 raeburn 12543: =item B<$email> Student's permanent e-mail address
12544:
12545: =item B<$type> Type of enrollment (auto or manual)
12546:
1.963 raeburn 12547: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
12548:
12549: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 12550:
1.963 raeburn 12551: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 12552:
1.963 raeburn 12553: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 12554:
1.963 raeburn 12555: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 12556:
1.286 matthew 12557: =back
1.297 matthew 12558:
12559: =item *
12560:
12561: modify_student_enrollment
12562:
12563: Change a students enrollment status in a class. The environment variable
12564: 'role.request.course' must be defined for this function to proceed.
12565:
12566: Inputs:
12567:
12568: =over 4
12569:
12570: =item $udom, students domain
12571:
12572: =item $uname, students name
12573:
12574: =item $uid, students user id
12575:
12576: =item $first, students first name
12577:
12578: =item $middle
12579:
12580: =item $last
12581:
12582: =item $gene
12583:
12584: =item $usec
12585:
12586: =item $end
12587:
12588: =item $start
12589:
1.957 raeburn 12590: =item $type
12591:
12592: =item $locktype
12593:
12594: =item $cid
12595:
12596: =item $selfenroll
12597:
12598: =item $context
12599:
1.297 matthew 12600: =back
12601:
1.191 harris41 12602:
12603: =item *
12604:
1.243 albertel 12605: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
12606: custom role; give a custom role to a user for the level given by URL. Specify
12607: name and domain of role author, and role name
1.191 harris41 12608:
12609: =item *
12610:
1.243 albertel 12611: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 12612:
12613: =item *
12614:
1.243 albertel 12615: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
12616:
12617: =back
12618:
12619: =head2 Course Infomation
12620:
12621: =over 4
1.191 harris41 12622:
12623: =item *
12624:
1.1118 foxr 12625: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 12626: specified course id, including all environment settings for the
12627: course, the description of the course will be in the hash under the
12628: key 'description'
1.191 harris41 12629:
1.1118 foxr 12630: $options is an optional parameter that if supplied is a hash reference that controls
12631: what how this function works. It has the following key/values:
12632:
12633: =over 4
12634:
12635: =item freshen_cache
12636:
12637: If defined, and the environment cache for the course is valid, it is
12638: returned in the returned hash.
12639:
12640: =item one_time
12641:
12642: If defined, the last cache time is set to _now_
12643:
12644: =item user
12645:
12646: If defined, the supplied username is used instead of the current user.
12647:
12648:
12649: =back
12650:
1.191 harris41 12651: =item *
12652:
1.624 albertel 12653: resdata($name,$domain,$type,@which) : request for current parameter
12654: setting for a specific $type, where $type is either 'course' or 'user',
12655: @what should be a list of parameters to ask about. This routine caches
12656: answers for 5 minutes.
1.243 albertel 12657:
1.877 foxr 12658: =item *
12659:
12660: get_courseresdata($courseid, $domain) : dump the entire course resource
12661: data base, returning a hash that is keyed by the resource name and has
12662: values that are the resource value. I believe that the timestamps and
12663: versions are also returned.
12664:
1.243 albertel 12665: =back
12666:
12667: =head2 Course Modification
12668:
12669: =over 4
1.191 harris41 12670:
12671: =item *
12672:
1.243 albertel 12673: writecoursepref($courseid,%prefs) : write preferences (environment
12674: database) for a course
1.191 harris41 12675:
12676: =item *
12677:
1.1011 raeburn 12678: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
12679:
12680: =item *
12681:
1.1038 raeburn 12682: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 12683:
1.1167 droeschl 12684: =item *
12685:
12686: is_course($courseid), is_course($cdom, $cnum)
12687:
12688: Accepts either a combined $courseid (in the form of domain_courseid) or the
12689: two component version $cdom, $cnum. It checks if the specified course exists.
12690:
12691: Returns:
12692: undef if the course doesn't exist, otherwise
12693: in scalar context the combined courseid.
12694: in list context the two components of the course identifier, domain and
12695: courseid.
12696:
1.243 albertel 12697: =back
12698:
12699: =head2 Resource Subroutines
12700:
12701: =over 4
1.191 harris41 12702:
12703: =item *
12704:
1.243 albertel 12705: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 12706:
12707: =item *
12708:
1.243 albertel 12709: repcopy($filename) : subscribes to the requested file, and attempts to
12710: replicate from the owning library server, Might return
1.607 raeburn 12711: 'unavailable', 'not_found', 'forbidden', 'ok', or
12712: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 12713: resource. Expects the local filesystem pathname
12714: (/home/httpd/html/res/....)
12715:
12716: =back
12717:
12718: =head2 Resource Information
12719:
12720: =over 4
1.191 harris41 12721:
12722: =item *
12723:
1.243 albertel 12724: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
12725: a vairety of different possible values, $varname should be a request
12726: string, and the other parameters can be used to specify who and what
12727: one is asking about.
12728:
12729: Possible values for $varname are environment.lastname (or other item
12730: from the envirnment hash), user.name (or someother aspect about the
12731: user), resource.0.maxtries (or some other part and parameter of a
12732: resource)
1.204 albertel 12733:
12734: =item *
12735:
1.243 albertel 12736: directcondval($number) : get current value of a condition; reads from a state
12737: string
1.204 albertel 12738:
12739: =item *
12740:
1.243 albertel 12741: condval($condidx) : value of condition index based on state
1.204 albertel 12742:
12743: =item *
12744:
1.243 albertel 12745: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
12746: resource's metadata, $what should be either a specific key, or either
12747: 'keys' (to get a list of possible keys) or 'packages' to get a list of
12748: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
12749:
12750: this function automatically caches all requests
1.191 harris41 12751:
12752: =item *
12753:
1.243 albertel 12754: metadata_query($query,$custom,$customshow) : make a metadata query against the
12755: network of library servers; returns file handle of where SQL and regex results
12756: will be stored for query
1.191 harris41 12757:
12758: =item *
12759:
1.243 albertel 12760: symbread($filename) : return symbolic list entry (filename argument optional);
12761: returns the data handle
1.191 harris41 12762:
12763: =item *
12764:
1.1190 raeburn 12765: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
12766: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 12767: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1190 raeburn 12768: on failure, user must be in a course, as it assumes the existence of
12769: the course initial hash, and uses $env('request.course.id'}. The third
12770: arg is an optional reference to a scalar. If this arg is passed in the
12771: call to symbverify, it will be set to 1 if the symb has been set to be
12772: encrypted; otherwise it will be null.
1.191 harris41 12773:
12774: =item *
12775:
1.243 albertel 12776: symbclean($symb) : removes versions numbers from a symb, returns the
12777: cleaned symb
1.191 harris41 12778:
12779: =item *
12780:
1.243 albertel 12781: is_on_map($uri) : checks if the $uri is somewhere on the current
12782: course map, user must be in a course for it to work.
1.191 harris41 12783:
12784: =item *
12785:
1.243 albertel 12786: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 12787:
12788: =item *
12789:
1.243 albertel 12790: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
12791: a random seed, all arguments are optional, if they aren't sent it uses the
12792: environment to derive them. Note: if symb isn't sent and it can't get one
12793: from &symbread it will use the current time as its return value
1.191 harris41 12794:
12795: =item *
12796:
1.243 albertel 12797: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
12798: unfakeable, receipt
1.191 harris41 12799:
12800: =item *
12801:
1.620 albertel 12802: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 12803:
12804: =item *
12805:
1.243 albertel 12806: countacc($url) : count the number of accesses to a given URL
1.191 harris41 12807:
12808: =item *
12809:
1.243 albertel 12810: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 12811:
12812: =item *
12813:
1.243 albertel 12814: checkin($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 $tcrsid)
1.191 harris41 12815:
12816: =item *
12817:
1.243 albertel 12818: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 12819:
12820: =item *
12821:
1.243 albertel 12822: devalidate($symb) : devalidate temporary spreadsheet calculations,
12823: forcing spreadsheet to reevaluate the resource scores next time.
12824:
1.1195 raeburn 12825: =item *
12826:
1.1196 raeburn 12827: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
12828: when viewing in course context.
1.1195 raeburn 12829:
1.1196 raeburn 12830: input: six args -- filename (decluttered), course number, course domain,
12831: url, symb (if registered) and group (if this is a
12832: group item -- e.g., bulletin board, group page etc.).
1.1195 raeburn 12833:
1.1196 raeburn 12834: output: array of five scalars --
1.1195 raeburn 12835: $cfile -- url for file editing if editable on current server
12836: $home -- homeserver of resource (i.e., for author if published,
12837: or course if uploaded.).
12838: $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 12839: $forceedit -- 1 if icon/link should be to go to edit mode
12840: $forceview -- 1 if icon/link should be to go to view mode
1.1195 raeburn 12841:
12842: =item *
12843:
12844: is_course_upload($file,$cnum,$cdom)
12845:
12846: Used in course context to determine if current file was uploaded to
12847: the course (i.e., would be found in /userfiles/docs on the course's
12848: homeserver.
12849:
12850: input: 3 args -- filename (decluttered), course number and course domain.
12851: output: boolean -- 1 if file was uploaded.
12852:
1.243 albertel 12853: =back
12854:
12855: =head2 Storing/Retreiving Data
12856:
12857: =over 4
1.191 harris41 12858:
12859: =item *
12860:
1.243 albertel 12861: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
12862: for this url; hashref needs to be given and should be a \%hashname; the
12863: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 12864: be derived from the env
1.191 harris41 12865:
12866: =item *
12867:
1.243 albertel 12868: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
12869: uses critical subroutine
1.191 harris41 12870:
12871: =item *
12872:
1.243 albertel 12873: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
12874: all args are optional
1.191 harris41 12875:
12876: =item *
12877:
1.717 albertel 12878: dumpstore($namespace,$udom,$uname,$regexp,$range) :
12879: dumps the complete (or key matching regexp) namespace into a hash
12880: ($udom, $uname, $regexp, $range are optional) for a namespace that is
12881: normally &store()ed into
12882:
12883: $range should be either an integer '100' (give me the first 100
12884: matching records)
12885: or be two integers sperated by a - with no spaces
12886: '30-50' (give me the 30th through the 50th matching
12887: records)
12888:
12889:
12890: =item *
12891:
12892: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
12893: replaces a &store() version of data with a replacement set of data
12894: for a particular resource in a namespace passed in the $storehash hash
12895: reference
12896:
12897: =item *
12898:
1.243 albertel 12899: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
12900: works very similar to store/cstore, but all data is stored in a
12901: temporary location and can be reset using tmpreset, $storehash should
12902: be a hash reference, returns nothing on success
1.191 harris41 12903:
12904: =item *
12905:
1.243 albertel 12906: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
12907: similar to restore, but all data is stored in a temporary location and
12908: can be reset using tmpreset. Returns a hash of values on success,
12909: error string otherwise.
1.191 harris41 12910:
12911: =item *
12912:
1.243 albertel 12913: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
12914: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 12915:
12916: =item *
12917:
1.243 albertel 12918: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12919: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 12920:
12921: =item *
12922:
1.243 albertel 12923: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
12924: namesp ($udom and $uname are optional)
1.191 harris41 12925:
12926: =item *
12927:
1.702 albertel 12928: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 12929: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 12930: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 12931:
1.702 albertel 12932: $range should be either an integer '100' (give me the first 100
12933: matching records)
12934: or be two integers sperated by a - with no spaces
12935: '30-50' (give me the 30th through the 50th matching
12936: records)
1.449 matthew 12937: =item *
12938:
12939: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
12940: $store can be a scalar, an array reference, or if the amount to be
12941: incremented is > 1, a hash reference.
12942:
12943: ($udom and $uname are optional)
1.191 harris41 12944:
12945: =item *
12946:
1.243 albertel 12947: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
12948: ($udom and $uname are optional)
1.191 harris41 12949:
12950: =item *
12951:
1.243 albertel 12952: cput($namespace,$storehash,$udom,$uname) : critical put
12953: ($udom and $uname are optional)
1.191 harris41 12954:
12955: =item *
12956:
1.748 albertel 12957: newput($namespace,$storehash,$udom,$uname) :
12958:
12959: Attempts to store the items in the $storehash, but only if they don't
12960: currently exist, if this succeeds you can be certain that you have
12961: successfully created a new key value pair in the $namespace db.
12962:
12963:
12964: Args:
12965: $namespace: name of database to store values to
12966: $storehash: hashref to store to the db
12967: $udom: (optional) domain of user containing the db
12968: $uname: (optional) name of user caontaining the db
12969:
12970: Returns:
12971: 'ok' -> succeeded in storing all keys of $storehash
12972: 'key_exists: <key>' -> failed to anything out of $storehash, as at
12973: least <key> already existed in the db (other
12974: requested keys may also already exist)
1.967 bisitz 12975: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 12976: 'con_lost' -> unable to contact request server
12977: 'refused' -> action was not allowed by remote machine
12978:
12979:
12980: =item *
12981:
1.243 albertel 12982: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12983: reference filled in from namesp (encrypts the return communication)
12984: ($udom and $uname are optional)
1.191 harris41 12985:
12986: =item *
12987:
1.243 albertel 12988: log($udom,$name,$home,$message) : write to permanent log for user; use
12989: critical subroutine
12990:
1.806 raeburn 12991: =item *
12992:
1.860 raeburn 12993: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
12994: array reference filled in from namespace found in domain level on either
12995: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 12996:
12997: =item *
12998:
1.860 raeburn 12999: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
13000: domain level either on specified domain server ($uhome) or primary domain
13001: server ($udom and $uhome are optional)
1.806 raeburn 13002:
1.943 raeburn 13003: =item *
13004:
13005: get_domain_defaults($target_domain) : returns hash with defaults for
13006: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
13007: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
13008: or localauth), initial password or a kerberos realm, language (e.g., en-us).
13009: Values are retrieved from cache (if current), or from domain's configuration.db
13010: (if available), or lastly from values in lonTabs/dns_domain,tab,
13011: or lonTabs/domain.tab.
13012:
13013: %domdefaults = &get_auth_defaults($target_domain);
13014:
1.243 albertel 13015: =back
13016:
13017: =head2 Network Status Functions
13018:
13019: =over 4
1.191 harris41 13020:
13021: =item *
13022:
1.1137 raeburn 13023: dirlist() : return directory list based on URI (first arg).
13024:
13025: Inputs: 1 required, 5 optional.
13026:
13027: =over
13028:
13029: =item
13030: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
13031:
13032: =item
13033: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
13034:
13035: =item
13036: $username - username of user/course to be listed. Extracted from $uri if absent.
13037:
13038: =item
13039: $getpropath - boolean: 1 if prepend path using &propath().
13040:
13041: =item
13042: $getuserdir - boolean: 1 if prepend path for "userfiles".
13043:
13044: =item
13045: $alternateRoot - path to prepend in place of path from $uri.
13046:
13047: =back
13048:
13049: Returns: Array of up to two items.
13050:
13051: =over
13052:
13053: a reference to an array of files/subdirectories
13054:
13055: =over
13056:
13057: Each element in the array of files/subdirectories is a & separated list of
13058: item name and the result of running stat on the item. If dirlist was requested
13059: for a file instead of a directory, the item name will be ''. For a directory
13060: listing, if the item is a metadata file, the element will end &N&M
13061: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
13062: default copyright set (1).
13063:
13064: =back
13065:
13066: a scalar containing error condition (if encountered).
13067:
13068: =over
13069:
13070: =item
13071: no_host (no homeserver identified for $username:$domain).
13072:
13073: =item
13074: no_such_host (server contacted for listing not identified as valid host).
13075:
13076: =item
13077: con_lost (connection to remote server failed).
13078:
13079: =item
13080: refused (invalid $username:$domain received on lond side).
13081:
13082: =item
13083: no_such_dir (directory at specified path on lond side does not exist).
13084:
13085: =item
13086: empty (directory at specified path on lond side is empty).
13087:
13088: =over
13089:
13090: This is currently not encountered because the &ls3, &ls2,
13091: &ls (_handler) routines on the lond side do not filter out
13092: . and .. from a directory listing.
13093:
13094: =back
13095:
13096: =back
13097:
13098: =back
1.191 harris41 13099:
13100: =item *
13101:
1.243 albertel 13102: spareserver() : find server with least workload from spare.tab
13103:
1.986 foxr 13104:
13105: =item *
13106:
13107: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
13108: if there is no corresponding loncapa host.
13109:
1.243 albertel 13110: =back
13111:
1.986 foxr 13112:
1.243 albertel 13113: =head2 Apache Request
13114:
13115: =over 4
1.191 harris41 13116:
13117: =item *
13118:
1.243 albertel 13119: ssi($url,%hash) : server side include, does a complete request cycle on url to
13120: localhost, posts hash
13121:
13122: =back
13123:
13124: =head2 Data to String to Data
13125:
13126: =over 4
1.191 harris41 13127:
13128: =item *
13129:
1.243 albertel 13130: hash2str(%hash) : convert a hash into a string complete with escaping and '='
13131: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 13132:
13133: =item *
13134:
1.243 albertel 13135: hashref2str($hashref) : convert a hashref into a string complete with
13136: escaping and '=' and '&' separators, supports elements that are
13137: arrayrefs and hashrefs
1.191 harris41 13138:
13139: =item *
13140:
1.243 albertel 13141: arrayref2str($arrayref) : convert an arrayref into a string complete
13142: with escaping and '&' separators, supports elements that are arrayrefs
13143: and hashrefs
1.191 harris41 13144:
13145: =item *
13146:
1.243 albertel 13147: str2hash($string) : convert string to hash using unescaping and
13148: splitting on '=' and '&', supports elements that are arrayrefs and
13149: hashrefs
1.191 harris41 13150:
13151: =item *
13152:
1.243 albertel 13153: str2array($string) : convert string to hash using unescaping and
13154: splitting on '&', supports elements that are arrayrefs and hashrefs
13155:
13156: =back
13157:
13158: =head2 Logging Routines
13159:
13160:
13161: These routines allow one to make log messages in the lonnet.log and
13162: lonnet.perm logfiles.
1.191 harris41 13163:
1.1119 foxr 13164: =over 4
13165:
1.191 harris41 13166: =item *
13167:
1.243 albertel 13168: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 13169:
13170: =item *
13171:
1.243 albertel 13172: logthis() : append message to the normal lonnet.log file, it gets
13173: preiodically rolled over and deleted.
1.191 harris41 13174:
13175: =item *
13176:
1.243 albertel 13177: logperm() : append a permanent message to lonnet.perm.log, this log
13178: file never gets deleted by any automated portion of the system, only
13179: messages of critical importance should go in here.
13180:
1.1119 foxr 13181:
1.243 albertel 13182: =back
13183:
13184: =head2 General File Helper Routines
13185:
13186: =over 4
1.191 harris41 13187:
13188: =item *
13189:
1.481 raeburn 13190: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
13191: (a) files in /uploaded
13192: (i) If a local copy of the file exists -
13193: compares modification date of local copy with last-modified date for
13194: definitive version stored on home server for course. If local copy is
13195: stale, requests a new version from the home server and stores it.
13196: If the original has been removed from the home server, then local copy
13197: is unlinked.
13198: (ii) If local copy does not exist -
13199: requests the file from the home server and stores it.
13200:
13201: If $caller is 'uploadrep':
13202: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
13203: for request for files originally uploaded via DOCS.
13204: - returns 'ok' if fresh local copy now available, -1 otherwise.
13205:
13206: Otherwise:
13207: This indicates a call from the content generation phase of the request.
13208: - returns the entire contents of the file or -1.
13209:
13210: (b) files in /res
13211: - returns the entire contents of a file or -1;
13212: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 13213:
1.712 albertel 13214:
13215: =item *
13216:
13217: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
13218: reference
13219:
13220: returns either a stat() list of data about the file or an empty list
13221: if the file doesn't exist or couldn't find out about it (connection
13222: problems or user unknown)
13223:
1.191 harris41 13224: =item *
13225:
1.243 albertel 13226: filelocation($dir,$file) : returns file system location of a file
13227: based on URI; meant to be "fairly clean" absolute reference, $dir is a
13228: directory that relative $file lookups are to looked in ($dir of /a/dir
13229: and a file of ../bob will become /a/bob)
1.191 harris41 13230:
13231: =item *
13232:
13233: hreflocation($dir,$file) : returns file system location or a URL; same as
13234: filelocation except for hrefs
13235:
13236: =item *
13237:
13238: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
13239:
1.243 albertel 13240: =back
13241:
1.608 albertel 13242: =head2 Usererfile file routines (/uploaded*)
13243:
13244: =over 4
13245:
13246: =item *
13247:
13248: userfileupload(): main rotine for putting a file in a user or course's
13249: filespace, arguments are,
13250:
1.620 albertel 13251: formname - required - this is the name of the element in $env where the
1.608 albertel 13252: filename, and the contents of the file to create/modifed exist
1.620 albertel 13253: the filename is in $env{'form.'.$formname.'.filename'} and the
13254: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 13255: context - if coursedoc, store the file in the course of the active role
13256: of the current user;
13257: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
13258: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 13259: subdir - required - subdirectory to put the file in under ../userfiles/
13260: if undefined, it will be placed in "unknown"
13261:
13262: (This routine calls clean_filename() to remove any dangerous
13263: characters from the filename, and then calls finuserfileupload() to
13264: complete the transaction)
13265:
13266: returns either the url of the uploaded file (/uploaded/....) if successful
13267: and /adm/notfound.html if unsuccessful
13268:
13269: =item *
13270:
13271: clean_filename(): routine for cleaing a filename up for storage in
13272: userfile space, argument is:
13273:
13274: filename - proposed filename
13275:
13276: returns: the new clean filename
13277:
13278: =item *
13279:
1.1090 raeburn 13280: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 13281: userspace, probably shouldn't be called directly
13282:
13283: docuname: username or courseid of destination for the file
13284: docudom: domain of user/course of destination for the file
13285: formname: same as for userfileupload()
1.1090 raeburn 13286: fname: filename (including subdirectories) for the file
13287: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
13288: allfiles: reference to hash used to store objects found by parser
13289: codebase: reference to hash used for codebases of java objects found by parser
13290: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
13291: thumbheight: height (pixels) of thumbnail to be created for uploaded image
13292: resizewidth: width to be used to resize image using resizeImage from ImageMagick
13293: resizeheight: height to be used to resize image using resizeImage from ImageMagick
13294: context: if 'overwrite', will move the uploaded file from its temporary location to
13295: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 13296: mimetype: reference to scalar to accommodate mime type determined
13297: from File::MMagic if $parser = parse.
1.608 albertel 13298:
13299: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 13300: and /adm/notfound.html if unsuccessful (or an error message if context
13301: was 'overwrite').
13302:
1.608 albertel 13303:
13304: =item *
13305:
13306: renameuserfile(): renames an existing userfile to a new name
13307:
13308: Args:
13309: docuname: username or courseid of destination for the file
13310: docudom: domain of user/course of destination for the file
13311: old: current file name (including any subdirs under userfiles)
13312: new: desired file name (including any subdirs under userfiles)
13313:
13314: =item *
13315:
13316: mkdiruserfile(): creates a directory is a userfiles dir
13317:
13318: Args:
13319: docuname: username or courseid of destination for the file
13320: docudom: domain of user/course of destination for the file
13321: dir: dir to create (including any subdirs under userfiles)
13322:
13323: =item *
13324:
13325: removeuserfile(): removes a file that exists in userfiles
13326:
13327: Args:
13328: docuname: username or courseid of destination for the file
13329: docudom: domain of user/course of destination for the file
13330: fname: filname to delete (including any subdirs under userfiles)
13331:
13332: =item *
13333:
13334: removeuploadedurl(): convience function for removeuserfile()
13335:
13336: Args:
13337: url: a full /uploaded/... url to delete
13338:
1.747 albertel 13339: =item *
13340:
13341: get_portfile_permissions():
13342: Args:
13343: domain: domain of user or course contain the portfolio files
13344: user: name of user or num of course contain the portfolio files
13345: Returns:
13346: hashref of a dump of the proper file_permissions.db
13347:
13348:
13349: =item *
13350:
13351: get_access_controls():
13352:
13353: Args:
13354: current_permissions: the hash ref returned from get_portfile_permissions()
13355: group: (optional) the group you want the files associated with
13356: file: (optional) the file you want access info on
13357:
13358: Returns:
1.749 raeburn 13359: a hash (keys are file names) of hashes containing
13360: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
13361: values are XML containing access control settings (see below)
1.747 albertel 13362:
13363: Internal notes:
13364:
1.749 raeburn 13365: access controls are stored in file_permissions.db as key=value pairs.
13366: key -> path to file/file_name\0uniqueID:scope_end_start
13367: where scope -> public,guest,course,group,domains or users.
13368: end -> UNIX time for end of access (0 -> no end date)
13369: start -> UNIX time for start of access
13370:
13371: value -> XML description of access control
13372: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
13373: <start></start>
13374: <end></end>
13375:
13376: <password></password> for scope type = guest
13377:
13378: <domain></domain> for scope type = course or group
13379: <number></number>
13380: <roles id="">
13381: <role></role>
13382: <access></access>
13383: <section></section>
13384: <group></group>
13385: </roles>
13386:
13387: <dom></dom> for scope type = domains
13388:
13389: <users> for scope type = users
13390: <user>
13391: <uname></uname>
13392: <udom></udom>
13393: </user>
13394: </users>
13395: </scope>
13396:
13397: Access data is also aggregated for each file in an additional key=value pair:
13398: key -> path to file/file_name\0accesscontrol
13399: value -> reference to hash
13400: hash contains key = value pairs
13401: where key = uniqueID:scope_end_start
13402: value = UNIX time record was last updated
13403:
13404: Used to improve speed of look-ups of access controls for each file.
13405:
13406: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
13407:
1.1198 raeburn 13408: =item *
13409:
1.749 raeburn 13410: modify_access_controls():
13411:
13412: Modifies access controls for a portfolio file
13413: Args
13414: 1. file name
13415: 2. reference to hash of required changes,
13416: 3. domain
13417: 4. username
13418: where domain,username are the domain of the portfolio owner
13419: (either a user or a course)
13420:
13421: Returns:
13422: 1. result of additions or updates ('ok' or 'error', with error message).
13423: 2. result of deletions ('ok' or 'error', with error message).
13424: 3. reference to hash of any new or updated access controls.
13425: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
13426: key = integer (inbound ID)
1.1198 raeburn 13427: value = uniqueID
13428:
13429: =item *
13430:
13431: get_timebased_id():
13432:
13433: Attempts to get a unique timestamp-based suffix for use with items added to a
13434: course via the Course Editor (e.g., folders, composite pages,
13435: group bulletin boards).
13436:
13437: Args: (first three required; six others optional)
13438:
13439: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
13440: docssequence, or name of group
13441:
13442: 2. keyid (alphanumeric): name of temporary locking key in hash,
13443: e.g., num, boardids
13444:
13445: 3. namespace: name of gdbm file used to store suffixes already assigned;
13446: file will be named nohist_namespace.db
13447:
13448: 4. cdom: domain of course; default is current course domain from %env
13449:
13450: 5. cnum: course number; default is current course number from %env
13451:
13452: 6. idtype: set to concat if an additional digit is to be appended to the
13453: unix timestamp to form the suffix, if the plain timestamp is already
13454: in use. Default is to not do this, but simply increment the unix
13455: timestamp by 1 until a unique key is obtained.
13456:
13457: 7. who: holder of locking key; defaults to user:domain for user.
13458:
13459: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
13460: retrying); default is 3.
13461:
13462: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
13463:
13464: Returns:
13465:
13466: 1. suffix obtained (numeric)
13467:
13468: 2. result of deleting locking key (ok if deleted, or lock never obtained)
13469:
13470: 3. error: contains (localized) error message if an error occurred.
13471:
1.747 albertel 13472:
1.608 albertel 13473: =back
13474:
1.243 albertel 13475: =head2 HTTP Helper Routines
13476:
13477: =over 4
13478:
1.191 harris41 13479: =item *
13480:
13481: escape() : unpack non-word characters into CGI-compatible hex codes
13482:
13483: =item *
13484:
13485: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
13486:
1.243 albertel 13487: =back
13488:
13489: =head1 PRIVATE SUBROUTINES
13490:
13491: =head2 Underlying communication routines (Shouldn't call)
13492:
13493: =over 4
13494:
13495: =item *
13496:
13497: subreply() : tries to pass a message to lonc, returns con_lost if incapable
13498:
13499: =item *
13500:
13501: reply() : uses subreply to send a message to remote machine, logs all failures
13502:
13503: =item *
13504:
13505: critical() : passes a critical message to another server; if cannot
13506: get through then place message in connection buffer directory and
13507: returns con_delayed, if incapable of saving message, returns
13508: con_failed
13509:
13510: =item *
13511:
13512: reconlonc() : tries to reconnect lonc client processes.
13513:
13514: =back
13515:
13516: =head2 Resource Access Logging
13517:
13518: =over 4
13519:
13520: =item *
13521:
13522: flushcourselogs() : flush (save) buffer logs and access logs
13523:
13524: =item *
13525:
13526: courselog($what) : save message for course in hash
13527:
13528: =item *
13529:
13530: courseacclog($what) : save message for course using &courselog(). Perform
13531: special processing for specific resource types (problems, exams, quizzes, etc).
13532:
1.191 harris41 13533: =item *
13534:
13535: goodbye() : flush course logs and log shutting down; it is called in srm.conf
13536: as a PerlChildExitHandler
1.243 albertel 13537:
13538: =back
13539:
13540: =head2 Other
13541:
13542: =over 4
13543:
13544: =item *
13545:
13546: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 13547:
13548: =back
13549:
13550: =cut
1.877 foxr 13551:
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