Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1172.2.17
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1172.2.17! raeburn 4: # $Id: lonnet.pm,v 1.1172.2.16 2013/01/03 19:59:47 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:
1.871 albertel 78: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 79: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
80: %managerstab);
1.871 albertel 81:
82: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
83: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
84: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 85: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 86:
1.1 albertel 87: use IO::Socket;
1.31 www 88: use GDBM_File;
1.208 albertel 89: use HTML::LCParser;
1.88 www 90: use Fcntl qw(:flock);
1.870 albertel 91: use Storable qw(thaw nfreeze);
1.539 albertel 92: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 93: use Cache::Memcached;
1.676 albertel 94: use Digest::MD5;
1.790 albertel 95: use Math::Random;
1.1024 raeburn 96: use File::MMagic;
1.807 albertel 97: use LONCAPA qw(:DEFAULT :match);
1.740 www 98: use LONCAPA::Configuration;
1.1160 www 99: use LONCAPA::lonmetadata;
1.1117 foxr 100:
1.1090 raeburn 101: use File::Copy;
1.676 albertel 102:
1.195 www 103: my $readit;
1.550 foxr 104: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 105:
1.619 albertel 106: require Exporter;
107:
108: our @ISA = qw (Exporter);
109: our @EXPORT = qw(%env);
110:
1.1172.2.9 raeburn 111: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 112: {
113: my $logid;
1.1172.2.9 raeburn 114: sub write_log {
115: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
116: if ($context eq 'course') {
117: if (($cnum eq '') || ($cdom eq '')) {
118: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
119: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
120: }
1.957 raeburn 121: }
1.1172.2.13 raeburn 122: $logid ++;
1.957 raeburn 123: my $now = time();
124: my $id=$now.'00000'.$$.'00000'.$logid;
1.1172.2.9 raeburn 125: my $logentry = {
126: $id => {
127: 'exe_uname' => $env{'user.name'},
128: 'exe_udom' => $env{'user.domain'},
129: 'exe_time' => $now,
130: 'exe_ip' => $ENV{'REMOTE_ADDR'},
131: 'delflag' => $delflag,
132: 'logentry' => $storehash,
133: 'uname' => $uname,
134: 'udom' => $udom,
135: }
136: };
137: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 138: }
139: }
1.1 albertel 140:
1.163 harris41 141: sub logtouch {
142: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 143: unless (-e "$execdir/logs/lonnet.log") {
144: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 145: close $fh;
146: }
147: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
148: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
149: }
150:
1.1 albertel 151: sub logthis {
152: my $message=shift;
153: my $execdir=$perlvar{'lonDaemons'};
154: my $now=time;
155: my $local=localtime($now);
1.448 albertel 156: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 157: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
158: print $fh $logstring;
1.448 albertel 159: close($fh);
160: }
1.1 albertel 161: return 1;
162: }
163:
164: sub logperm {
165: my $message=shift;
166: my $execdir=$perlvar{'lonDaemons'};
167: my $now=time;
168: my $local=localtime($now);
1.448 albertel 169: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
170: print $fh "$now:$message:$local\n";
171: close($fh);
172: }
1.1 albertel 173: return 1;
174: }
175:
1.850 albertel 176: sub create_connection {
1.853 albertel 177: my ($hostname,$lonid) = @_;
1.851 albertel 178: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 179: Type => SOCK_STREAM,
180: Timeout => 10);
181: return 0 if (!$client);
1.890 albertel 182: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 183: my $result = <$client>;
184: chomp($result);
185: return 1 if ($result eq 'done');
186: return 0;
187: }
188:
1.983 raeburn 189: sub get_server_timezone {
190: my ($cnum,$cdom) = @_;
191: my $home=&homeserver($cnum,$cdom);
192: if ($home ne 'no_host') {
193: my $cachetime = 24*3600;
194: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
195: if (defined($cached)) {
196: return $timezone;
197: } else {
198: my $timezone = &reply('servertimezone',$home);
199: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
200: }
201: }
202: }
1.850 albertel 203:
1.1106 raeburn 204: sub get_server_distarch {
205: my ($lonhost,$ignore_cache) = @_;
206: if (defined($lonhost)) {
207: if (!defined(&hostname($lonhost))) {
208: return;
209: }
210: my $cachetime = 12*3600;
211: if (!$ignore_cache) {
212: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
213: if (defined($cached)) {
214: return $distarch;
215: }
216: }
217: my $rep = &reply('serverdistarch',$lonhost);
218: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
219: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
220: $rep eq '') {
221: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
222: }
223: }
224: return;
225: }
226:
1.993 raeburn 227: sub get_server_loncaparev {
1.1073 raeburn 228: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 229: if (defined($lonhost)) {
230: if (!defined(&hostname($lonhost))) {
231: undef($lonhost);
232: }
233: }
234: if (!defined($lonhost)) {
235: if (defined(&domain($dom,'primary'))) {
236: $lonhost=&domain($dom,'primary');
237: if ($lonhost eq 'no_host') {
238: undef($lonhost);
239: }
240: }
241: }
242: if (defined($lonhost)) {
1.1073 raeburn 243: my $cachetime = 12*3600;
244: if (!$ignore_cache) {
245: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
246: if (defined($cached)) {
247: return $loncaparev;
248: }
249: }
250: my ($answer,$loncaparev);
251: my @ids=¤t_machine_ids();
252: if (grep(/^\Q$lonhost\E$/,@ids)) {
253: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 254: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 255: $loncaparev = $1;
256: }
257: } else {
258: $answer = &reply('serverloncaparev',$lonhost);
259: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
260: if ($caller eq 'loncron') {
261: my $ua=new LWP::UserAgent;
1.1082 raeburn 262: $ua->timeout(4);
1.1073 raeburn 263: my $protocol = $protocol{$lonhost};
264: $protocol = 'http' if ($protocol ne 'https');
265: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
266: my $request=new HTTP::Request('GET',$url);
267: my $response=$ua->request($request);
268: unless ($response->is_error()) {
269: my $content = $response->content;
1.1081 raeburn 270: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 271: $loncaparev = $1;
272: }
273: }
274: } else {
275: $loncaparev = $loncaparevs{$lonhost};
276: }
1.1081 raeburn 277: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 278: $loncaparev = $1;
279: }
1.993 raeburn 280: }
1.1073 raeburn 281: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 282: }
283: }
284:
1.1074 raeburn 285: sub get_server_homeID {
286: my ($hostname,$ignore_cache,$caller) = @_;
287: unless ($ignore_cache) {
288: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
289: if (defined($cached)) {
290: return $serverhomeID;
291: }
292: }
293: my $cachetime = 12*3600;
294: my $serverhomeID;
295: if ($caller eq 'loncron') {
296: my @machine_ids = &machine_ids($hostname);
297: foreach my $id (@machine_ids) {
298: my $response = &reply('serverhomeID',$id);
299: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
300: $serverhomeID = $response;
301: last;
302: }
303: }
304: if ($serverhomeID eq '') {
305: $serverhomeID = $machine_ids[-1];
306: }
307: } else {
308: $serverhomeID = $serverhomeIDs{$hostname};
309: }
310: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
311: }
312:
1.1121 raeburn 313: sub get_remote_globals {
314: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 315: my ($result,%returnhash,%whatneeded);
316: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 317: foreach my $what (sort(keys(%{$whathash}))) {
318: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 319: my ($response,$cached);
1.1121 raeburn 320: unless ($ignore_cache) {
1.1125 raeburn 321: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 322: }
323: if (defined($cached)) {
1.1125 raeburn 324: $returnhash{$what} = $response;
1.1121 raeburn 325: } else {
1.1125 raeburn 326: $whatneeded{$what} = 1;
1.1121 raeburn 327: }
328: }
1.1125 raeburn 329: if (keys(%whatneeded) == 0) {
330: $result = 'ok';
331: } else {
1.1121 raeburn 332: my $requested = &freeze_escape(\%whatneeded);
333: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 334: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
335: ($rep eq 'unknown_cmd')) {
336: $result = $rep;
337: } else {
338: $result = 'ok';
1.1121 raeburn 339: my @pairs=split(/\&/,$rep);
1.1125 raeburn 340: foreach my $item (@pairs) {
341: my ($key,$value)=split(/=/,$item,2);
342: my $what = &unescape($key);
343: my $hashid = $lonhost.'-'.$what;
344: $returnhash{$what}=&thaw_unescape($value);
345: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 346: }
347: }
348: }
349: }
1.1125 raeburn 350: return ($result,\%returnhash);
1.1121 raeburn 351: }
352:
1.1124 raeburn 353: sub remote_devalidate_cache {
354: my ($lonhost,$name,$id) = @_;
1.1130 raeburn 355: my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
1.1124 raeburn 356: return $response;
357: }
358:
1.1 albertel 359: # -------------------------------------------------- Non-critical communication
360: sub subreply {
361: my ($cmd,$server)=@_;
1.838 albertel 362: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 363: #
364: # With loncnew process trimming, there's a timing hole between lonc server
365: # process exit and the master server picking up the listen on the AF_UNIX
366: # socket. In that time interval, a lock file will exist:
367:
368: my $lockfile=$peerfile.".lock";
369: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
370: sleep(1);
371: }
372: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 373: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 374: #
1.550 foxr 375: # We'll give the connection a few tries before abandoning it. If
376: # connection is not possible, we'll con_lost back to the client.
377: #
378: my $client;
379: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
380: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
381: Type => SOCK_STREAM,
382: Timeout => 10);
1.869 albertel 383: if ($client) {
1.550 foxr 384: last; # Connected!
1.850 albertel 385: } else {
1.853 albertel 386: &create_connection(&hostname($server),$server);
1.550 foxr 387: }
1.850 albertel 388: sleep(1); # Try again later if failed connection.
1.550 foxr 389: }
390: my $answer;
391: if ($client) {
1.704 albertel 392: print $client "sethost:$server:$cmd\n";
1.550 foxr 393: $answer=<$client>;
394: if (!$answer) { $answer="con_lost"; }
395: chomp($answer);
396: } else {
397: $answer = 'con_lost'; # Failed connection.
398: }
1.1 albertel 399: return $answer;
400: }
401:
402: sub reply {
403: my ($cmd,$server)=@_;
1.838 albertel 404: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 405: my $answer=subreply($cmd,$server);
1.65 www 406: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 407: &logthis("<font color=\"blue\">WARNING:".
1.12 www 408: " $cmd to $server returned $answer</font>");
409: }
1.1 albertel 410: return $answer;
411: }
412:
413: # ----------------------------------------------------------- Send USR1 to lonc
414:
415: sub reconlonc {
1.891 albertel 416: my ($lonid) = @_;
417: my $hostname = &hostname($lonid);
418: if ($lonid) {
419: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
420: if ($hostname && -e $peerfile) {
421: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
422: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
423: Type => SOCK_STREAM,
424: Timeout => 10);
425: if ($client) {
426: print $client ("reset_retries\n");
427: my $answer=<$client>;
428: #reset just this one.
429: }
430: }
431: return;
432: }
433:
1.836 www 434: &logthis("Trying to reconnect lonc");
1.1 albertel 435: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 436: if (open(my $fh,"<$loncfile")) {
1.1 albertel 437: my $loncpid=<$fh>;
438: chomp($loncpid);
439: if (kill 0 => $loncpid) {
440: &logthis("lonc at pid $loncpid responding, sending USR1");
441: kill USR1 => $loncpid;
442: sleep 1;
1.836 www 443: } else {
1.12 www 444: &logthis(
1.672 albertel 445: "<font color=\"blue\">WARNING:".
1.12 www 446: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 447: }
448: } else {
1.836 www 449: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 450: }
451: }
452:
453: # ------------------------------------------------------ Critical communication
1.12 www 454:
1.1 albertel 455: sub critical {
456: my ($cmd,$server)=@_;
1.838 albertel 457: unless (&hostname($server)) {
1.672 albertel 458: &logthis("<font color=\"blue\">WARNING:".
1.89 www 459: " Critical message to unknown server ($server)</font>");
460: return 'no_such_host';
461: }
1.1 albertel 462: my $answer=reply($cmd,$server);
463: if ($answer eq 'con_lost') {
464: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 465: my $answer=reply($cmd,$server);
1.1 albertel 466: if ($answer eq 'con_lost') {
467: my $now=time;
468: my $middlename=$cmd;
1.5 www 469: $middlename=substr($middlename,0,16);
1.1 albertel 470: $middlename=~s/\W//g;
471: my $dfilename=
1.305 www 472: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
473: $dumpcount++;
1.1 albertel 474: {
1.448 albertel 475: my $dfh;
476: if (open($dfh,">$dfilename")) {
477: print $dfh "$cmd\n";
478: close($dfh);
479: }
1.1 albertel 480: }
481: sleep 2;
482: my $wcmd='';
483: {
1.448 albertel 484: my $dfh;
485: if (open($dfh,"<$dfilename")) {
486: $wcmd=<$dfh>;
487: close($dfh);
488: }
1.1 albertel 489: }
490: chomp($wcmd);
1.7 www 491: if ($wcmd eq $cmd) {
1.672 albertel 492: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 493: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 494: &logperm("D:$server:$cmd");
495: return 'con_delayed';
496: } else {
1.672 albertel 497: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 498: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 499: &logperm("F:$server:$cmd");
500: return 'con_failed';
501: }
502: }
503: }
504: return $answer;
1.405 albertel 505: }
506:
1.755 albertel 507: # ------------------------------------------- check if return value is an error
508:
509: sub error {
510: my ($result) = @_;
1.756 albertel 511: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 512: if ($2 == 2) { return undef; }
513: return $1;
514: }
515: return undef;
516: }
517:
1.783 albertel 518: sub convert_and_load_session_env {
519: my ($lonidsdir,$handle)=@_;
520: my @profile;
521: {
1.917 albertel 522: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
523: if (!$opened) {
1.915 albertel 524: return 0;
525: }
1.783 albertel 526: flock($idf,LOCK_SH);
527: @profile=<$idf>;
528: close($idf);
529: }
530: my %temp_env;
531: foreach my $line (@profile) {
1.786 albertel 532: if ($line !~ m/=/) {
533: return 0;
534: }
1.783 albertel 535: chomp($line);
536: my ($envname,$envvalue)=split(/=/,$line,2);
537: $temp_env{&unescape($envname)} = &unescape($envvalue);
538: }
539: unlink("$lonidsdir/$handle.id");
540: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
541: 0640)) {
542: %disk_env = %temp_env;
543: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
544: untie(%disk_env);
545: }
1.786 albertel 546: return 1;
1.783 albertel 547: }
548:
1.374 www 549: # ------------------------------------------- Transfer profile into environment
1.780 albertel 550: my $env_loaded;
551: sub transfer_profile_to_env {
1.788 albertel 552: my ($lonidsdir,$handle,$force_transfer) = @_;
553: if (!$force_transfer && $env_loaded) { return; }
1.374 www 554:
1.720 albertel 555: if (!defined($lonidsdir)) {
556: $lonidsdir = $perlvar{'lonIDsDir'};
557: }
558: if (!defined($handle)) {
559: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
560: }
561:
1.786 albertel 562: my $convert;
563: {
1.917 albertel 564: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
565: if (!$opened) {
1.915 albertel 566: return;
567: }
1.786 albertel 568: flock($idf,LOCK_SH);
569: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
570: &GDBM_READER(),0640)) {
571: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
572: untie(%disk_env);
573: } else {
574: $convert = 1;
575: }
576: }
577: if ($convert) {
578: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
579: &logthis("Failed to load session, or convert session.");
580: }
1.374 www 581: }
1.783 albertel 582:
1.786 albertel 583: my %remove;
1.783 albertel 584: while ( my $envname = each(%env) ) {
1.433 matthew 585: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
586: if ($time < time-300) {
1.783 albertel 587: $remove{$key}++;
1.433 matthew 588: }
589: }
590: }
1.783 albertel 591:
1.619 albertel 592: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 593: $env_loaded=1;
1.783 albertel 594: foreach my $expired_key (keys(%remove)) {
1.433 matthew 595: &delenv($expired_key);
1.374 www 596: }
1.1 albertel 597: }
598:
1.916 albertel 599: # ---------------------------------------------------- Check for valid session
600: sub check_for_valid_session {
1.1155 raeburn 601: my ($r,$name) = @_;
1.916 albertel 602: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 603: if ($name eq '') {
604: $name = 'lonID';
605: }
606: my $lonid=$cookies{$name};
1.916 albertel 607: return undef if (!$lonid);
608:
609: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 610: my $lonidsdir;
611: if ($name eq 'lonDAV') {
612: $lonidsdir=$r->dir_config('lonDAVsessDir');
613: } else {
614: $lonidsdir=$r->dir_config('lonIDsDir');
615: }
1.916 albertel 616: return undef if (!-e "$lonidsdir/$handle.id");
617:
1.917 albertel 618: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
619: return undef if (!$opened);
1.916 albertel 620:
621: flock($idf,LOCK_SH);
622: my %disk_env;
623: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
624: &GDBM_READER(),0640)) {
625: return undef;
626: }
627:
628: if (!defined($disk_env{'user.name'})
629: || !defined($disk_env{'user.domain'})) {
630: return undef;
631: }
632: return $handle;
633: }
634:
1.830 albertel 635: sub timed_flock {
636: my ($file,$lock_type) = @_;
637: my $failed=0;
638: eval {
639: local $SIG{__DIE__}='DEFAULT';
640: local $SIG{ALRM}=sub {
641: $failed=1;
642: die("failed lock");
643: };
644: alarm(13);
645: flock($file,$lock_type);
646: alarm(0);
647: };
648: if ($failed) {
649: return undef;
650: } else {
651: return 1;
652: }
653: }
654:
1.5 www 655: # ---------------------------------------------------------- Append Environment
656:
657: sub appenv {
1.949 raeburn 658: my ($newenv,$roles) = @_;
659: if (ref($newenv) eq 'HASH') {
660: foreach my $key (keys(%{$newenv})) {
661: my $refused = 0;
662: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
663: $refused = 1;
664: if (ref($roles) eq 'ARRAY') {
665: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
666: if (grep(/^\Q$role\E$/,@{$roles})) {
667: $refused = 0;
668: }
669: }
670: }
671: if ($refused) {
672: &logthis("<font color=\"blue\">WARNING: ".
673: "Attempt to modify environment ".$key." to ".$newenv->{$key}
674: .'</font>');
675: delete($newenv->{$key});
676: } else {
677: $env{$key}=$newenv->{$key};
678: }
679: }
680: my $opened = open(my $env_file,'+<',$env{'user.environment'});
681: if ($opened
682: && &timed_flock($env_file,LOCK_EX)
683: &&
684: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
685: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
686: while (my ($key,$value) = each(%{$newenv})) {
687: $disk_env{$key} = $value;
688: }
689: untie(%disk_env);
1.35 www 690: }
1.191 harris41 691: }
1.56 www 692: return 'ok';
693: }
694: # ----------------------------------------------------- Delete from Environment
695:
696: sub delenv {
1.1104 raeburn 697: my ($delthis,$regexp,$roles) = @_;
698: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
699: my $refused = 1;
700: if (ref($roles) eq 'ARRAY') {
701: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
702: if (grep(/^\Q$role\E$/,@{$roles})) {
703: $refused = 0;
704: }
705: }
706: if ($refused) {
707: &logthis("<font color=\"blue\">WARNING: ".
708: "Attempt to delete from environment ".$delthis);
709: return 'error';
710: }
1.56 www 711: }
1.917 albertel 712: my $opened = open(my $env_file,'+<',$env{'user.environment'});
713: if ($opened
1.915 albertel 714: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 715: &&
716: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
717: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 718: foreach my $key (keys(%disk_env)) {
1.987 raeburn 719: if ($regexp) {
720: if ($key=~/^$delthis/) {
721: delete($env{$key});
722: delete($disk_env{$key});
723: }
724: } else {
725: if ($key=~/^\Q$delthis\E/) {
726: delete($env{$key});
727: delete($disk_env{$key});
728: }
729: }
1.448 albertel 730: }
1.783 albertel 731: untie(%disk_env);
1.5 www 732: }
733: return 'ok';
1.369 albertel 734: }
735:
1.790 albertel 736: sub get_env_multiple {
737: my ($name) = @_;
738: my @values;
739: if (defined($env{$name})) {
740: # exists is it an array
741: if (ref($env{$name})) {
742: @values=@{ $env{$name} };
743: } else {
744: $values[0]=$env{$name};
745: }
746: }
747: return(@values);
748: }
749:
1.958 www 750: # ------------------------------------------------------------------- Locking
751:
752: sub set_lock {
753: my ($text)=@_;
754: $locknum++;
755: my $id=$$.'-'.$locknum;
756: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
757: 'session.lock.'.$id => $text});
758: return $id;
759: }
760:
761: sub get_locks {
762: my $num=0;
763: my %texts=();
764: foreach my $lock (split(/\,/,$env{'session.locks'})) {
765: if ($lock=~/\w/) {
766: $num++;
767: $texts{$lock}=$env{'session.lock.'.$lock};
768: }
769: }
770: return ($num,%texts);
771: }
772:
773: sub remove_lock {
774: my ($id)=@_;
775: my $newlocks='';
776: foreach my $lock (split(/\,/,$env{'session.locks'})) {
777: if (($lock=~/\w/) && ($lock ne $id)) {
778: $newlocks.=','.$lock;
779: }
780: }
781: &appenv({'session.locks' => $newlocks});
782: &delenv('session.lock.'.$id);
783: }
784:
785: sub remove_all_locks {
786: my $activelocks=$env{'session.locks'};
787: foreach my $lock (split(/\,/,$env{'session.locks'})) {
788: if ($lock=~/\w/) {
789: &remove_lock($lock);
790: }
791: }
792: }
793:
794:
1.369 albertel 795: # ------------------------------------------ Find out current server userload
796: sub userload {
797: my $numusers=0;
798: {
799: opendir(LONIDS,$perlvar{'lonIDsDir'});
800: my $filename;
801: my $curtime=time;
802: while ($filename=readdir(LONIDS)) {
1.925 albertel 803: next if ($filename eq '.' || $filename eq '..');
804: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 805: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 806: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 807: }
808: closedir(LONIDS);
809: }
810: my $userloadpercent=0;
811: my $maxuserload=$perlvar{'lonUserLoadLim'};
812: if ($maxuserload) {
1.371 albertel 813: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 814: }
1.372 albertel 815: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 816: return $userloadpercent;
1.283 www 817: }
818:
1.1 albertel 819: # ------------------------------ Find server with least workload from spare.tab
1.11 www 820:
1.1 albertel 821: sub spareserver {
1.1083 raeburn 822: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 823: my $spare_server;
1.370 albertel 824: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 825: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
826: : $userloadpercent;
1.1083 raeburn 827: my ($uint_dom,$remotesessions);
828: if (($udom ne '') && (&domain($udom) ne '')) {
829: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
830: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
831: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
832: $remotesessions = $udomdefaults{'remotesessions'};
833: }
1.1123 raeburn 834: my $spareshash = &this_host_spares($udom);
835: if (ref($spareshash) eq 'HASH') {
836: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
837: foreach my $try_server (@{ $spareshash->{'primary'} }) {
838: if ($uint_dom) {
839: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
840: $try_server));
841: }
842: ($spare_server, $lowest_load) =
843: &compare_server_load($try_server, $spare_server, $lowest_load);
844: }
1.1083 raeburn 845: }
1.784 albertel 846:
1.1123 raeburn 847: my $found_server = ($spare_server ne '' && $lowest_load < 100);
848:
849: if (!$found_server) {
850: if (ref($spareshash->{'default'}) eq 'ARRAY') {
851: foreach my $try_server (@{ $spareshash->{'default'} }) {
852: if ($uint_dom) {
853: next unless (&spare_can_host($udom,$uint_dom,
854: $remotesessions,$try_server));
855: }
856: ($spare_server, $lowest_load) =
857: &compare_server_load($try_server, $spare_server, $lowest_load);
858: }
859: }
860: }
1.784 albertel 861: }
862:
863: if (!$want_server_name) {
1.968 raeburn 864: my $protocol = 'http';
865: if ($protocol{$spare_server} eq 'https') {
866: $protocol = $protocol{$spare_server};
867: }
1.1001 raeburn 868: if (defined($spare_server)) {
869: my $hostname = &hostname($spare_server);
1.1083 raeburn 870: if (defined($hostname)) {
1.1001 raeburn 871: $spare_server = $protocol.'://'.$hostname;
872: }
873: }
1.784 albertel 874: }
875: return $spare_server;
876: }
877:
878: sub compare_server_load {
879: my ($try_server, $spare_server, $lowest_load) = @_;
880:
881: my $loadans = &reply('load', $try_server);
882: my $userloadans = &reply('userload',$try_server);
883:
884: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 885: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 886: }
887:
888: my $load;
889: if ($loadans =~ /\d/) {
890: if ($userloadans =~ /\d/) {
891: #both are numbers, pick the bigger one
892: $load = ($loadans > $userloadans) ? $loadans
893: : $userloadans;
1.411 albertel 894: } else {
1.784 albertel 895: $load = $loadans;
1.411 albertel 896: }
1.784 albertel 897: } else {
898: $load = $userloadans;
899: }
900:
901: if (($load =~ /\d/) && ($load < $lowest_load)) {
902: $spare_server = $try_server;
903: $lowest_load = $load;
1.370 albertel 904: }
1.784 albertel 905: return ($spare_server,$lowest_load);
1.202 matthew 906: }
1.914 albertel 907:
908: # --------------------------- ask offload servers if user already has a session
909: sub find_existing_session {
910: my ($udom,$uname) = @_;
1.1123 raeburn 911: my $spareshash = &this_host_spares($udom);
912: if (ref($spareshash) eq 'HASH') {
913: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
914: foreach my $try_server (@{ $spareshash->{'primary'} }) {
915: return $try_server if (&has_user_session($try_server, $udom, $uname));
916: }
917: }
918: if (ref($spareshash->{'default'}) eq 'ARRAY') {
919: foreach my $try_server (@{ $spareshash->{'default'} }) {
920: return $try_server if (&has_user_session($try_server, $udom, $uname));
921: }
922: }
1.914 albertel 923: }
924: return;
925: }
926:
927: # -------------------------------- ask if server already has a session for user
928: sub has_user_session {
929: my ($lonid,$udom,$uname) = @_;
930: my $result = &reply(join(':','userhassession',
931: map {&escape($_)} ($udom,$uname)),$lonid);
932: return 1 if ($result eq 'ok');
933:
934: return 0;
935: }
936:
1.1076 raeburn 937: # --------- determine least loaded server in a user's domain which allows login
938:
939: sub choose_server {
1.1115 raeburn 940: my ($udom,$checkloginvia) = @_;
1.1076 raeburn 941: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 942: my %servers = &get_servers($udom);
1.1076 raeburn 943: my $lowest_load = 30000;
1.1151 raeburn 944: my ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 945: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 946: my $loginvia;
947: if ($checkloginvia) {
948: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 949: if ($loginvia) {
950: my ($server,$path) = split(/:/,$loginvia);
951: ($login_host, $lowest_load) =
952: &compare_server_load($server, $login_host, $lowest_load);
953: if ($login_host eq $server) {
954: $portal_path = $path;
1.1151 raeburn 955: $isredirect = 1;
1.1116 raeburn 956: }
957: } else {
958: ($login_host, $lowest_load) =
959: &compare_server_load($lonhost, $login_host, $lowest_load);
960: if ($login_host eq $lonhost) {
961: $portal_path = '';
1.1151 raeburn 962: $isredirect = '';
1.1116 raeburn 963: }
964: }
965: } else {
1.1076 raeburn 966: ($login_host, $lowest_load) =
1.1116 raeburn 967: &compare_server_load($lonhost, $login_host, $lowest_load);
1.1076 raeburn 968: }
969: }
970: if ($login_host ne '') {
1.1116 raeburn 971: $hostname = &hostname($login_host);
1.1076 raeburn 972: }
1.1151 raeburn 973: return ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 974: }
975:
1.202 matthew 976: # --------------------------------------------- Try to change a user's password
977:
978: sub changepass {
1.799 raeburn 979: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 980: $currentpass = &escape($currentpass);
981: $newpass = &escape($newpass);
1.1030 raeburn 982: my $lonhost = $perlvar{'lonHostID'};
983: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 984: $server);
985: if (! $answer) {
986: &logthis("No reply on password change request to $server ".
987: "by $uname in domain $udom.");
988: } elsif ($answer =~ "^ok") {
989: &logthis("$uname in $udom successfully changed their password ".
990: "on $server.");
991: } elsif ($answer =~ "^pwchange_failure") {
992: &logthis("$uname in $udom was unable to change their password ".
993: "on $server. The action was blocked by either lcpasswd ".
994: "or pwchange");
995: } elsif ($answer =~ "^non_authorized") {
996: &logthis("$uname in $udom did not get their password correct when ".
997: "attempting to change it on $server.");
998: } elsif ($answer =~ "^auth_mode_error") {
999: &logthis("$uname in $udom attempted to change their password despite ".
1000: "not being locally or internally authenticated on $server.");
1001: } elsif ($answer =~ "^unknown_user") {
1002: &logthis("$uname in $udom attempted to change their password ".
1003: "on $server but were unable to because $server is not ".
1004: "their home server.");
1005: } elsif ($answer =~ "^refused") {
1006: &logthis("$server refused to change $uname in $udom password because ".
1007: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1008: } elsif ($answer =~ "invalid_client") {
1009: &logthis("$server refused to change $uname in $udom password because ".
1010: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1011: }
1012: return $answer;
1.1 albertel 1013: }
1014:
1.169 harris41 1015: # ----------------------- Try to determine user's current authentication scheme
1016:
1017: sub queryauthenticate {
1018: my ($uname,$udom)=@_;
1.456 albertel 1019: my $uhome=&homeserver($uname,$udom);
1020: if (!$uhome) {
1021: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1022: return 'no_host';
1023: }
1024: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1025: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1026: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1027: }
1.456 albertel 1028: return $answer;
1.169 harris41 1029: }
1030:
1.1 albertel 1031: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1032:
1.1 albertel 1033: sub authenticate {
1.1073 raeburn 1034: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1035: $upass=&escape($upass);
1036: $uname= &LONCAPA::clean_username($uname);
1.836 www 1037: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1038: my $newhome;
1.836 www 1039: if ((!$uhome) || ($uhome eq 'no_host')) {
1040: # Maybe the machine was offline and only re-appeared again recently?
1041: &reconlonc();
1042: # One more
1.952 raeburn 1043: $uhome=&homeserver($uname,$udom,1);
1044: if (($uhome eq 'no_host') && $checkdefauth) {
1045: if (defined(&domain($udom,'primary'))) {
1046: $newhome=&domain($udom,'primary');
1047: }
1048: if ($newhome ne '') {
1049: $uhome = $newhome;
1050: }
1051: }
1.836 www 1052: if ((!$uhome) || ($uhome eq 'no_host')) {
1053: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1054: return 'no_host';
1055: }
1.1 albertel 1056: }
1.1073 raeburn 1057: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1058: if ($answer eq 'authorized') {
1.952 raeburn 1059: if ($newhome) {
1060: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1061: return 'no_account_on_host';
1062: } else {
1063: &logthis("User $uname at $udom authorized by $uhome");
1064: return $uhome;
1065: }
1.471 albertel 1066: }
1067: if ($answer eq 'non_authorized') {
1068: &logthis("User $uname at $udom rejected by $uhome");
1069: return 'no_host';
1.9 www 1070: }
1.471 albertel 1071: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1072: return 'no_host';
1073: }
1074:
1.1073 raeburn 1075: sub can_host_session {
1.1074 raeburn 1076: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1077: my $canhost = 1;
1.1074 raeburn 1078: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1079: if (ref($remotesessions) eq 'HASH') {
1080: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1081: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1082: $canhost = 0;
1083: } else {
1084: $canhost = 1;
1085: }
1086: }
1087: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1088: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1089: $canhost = 1;
1090: } else {
1091: $canhost = 0;
1092: }
1093: }
1094: if ($canhost) {
1095: if ($remotesessions->{'version'} ne '') {
1096: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1097: if ($reqmajor ne '' && $reqminor ne '') {
1098: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1099: my $major = $1;
1100: my $minor = $2;
1101: if (($major < $reqmajor ) ||
1102: (($major == $reqmajor) && ($minor < $reqminor))) {
1103: $canhost = 0;
1104: }
1105: } else {
1106: $canhost = 0;
1107: }
1108: }
1109: }
1110: }
1111: }
1112: if ($canhost) {
1113: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1114: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1115: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1116: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1117: if (($uint_dom ne '') &&
1118: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1119: $canhost = 0;
1120: } else {
1121: $canhost = 1;
1122: }
1123: }
1124: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1125: if (($uint_dom ne '') &&
1126: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1127: $canhost = 1;
1128: } else {
1129: $canhost = 0;
1130: }
1131: }
1132: }
1133: }
1134: return $canhost;
1135: }
1136:
1.1083 raeburn 1137: sub spare_can_host {
1138: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1139: my $canhost=1;
1140: my @intdoms;
1141: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1142: if (ref($internet_names) eq 'ARRAY') {
1143: @intdoms = @{$internet_names};
1144: }
1145: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1146: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1147: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1148: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1149: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1150: $canhost = &can_host_session($udom,$try_server,$remoterev,
1151: $remotesessions,
1152: $defdomdefaults{'hostedsessions'});
1153: }
1154: return $canhost;
1155: }
1156:
1.1123 raeburn 1157: sub this_host_spares {
1158: my ($dom) = @_;
1.1126 raeburn 1159: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1160: my @hosts = ¤t_machine_ids();
1161: foreach my $lonhost (@hosts) {
1162: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1163: $dom_in_use = $dom;
1164: $lonhost_in_use = $lonhost;
1.1123 raeburn 1165: last;
1166: }
1167: }
1.1126 raeburn 1168: if ($dom_in_use ne '') {
1169: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1170: }
1171: if (ref($result) ne 'HASH') {
1172: $lonhost_in_use = $perlvar{'lonHostID'};
1173: $dom_in_use = &host_domain($lonhost_in_use);
1174: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1175: if (ref($result) ne 'HASH') {
1176: $result = \%spareid;
1177: }
1178: }
1179: return $result;
1180: }
1181:
1182: sub spares_for_offload {
1183: my ($dom_in_use,$lonhost_in_use) = @_;
1184: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1185: if (defined($cached)) {
1186: return $result;
1187: } else {
1.1126 raeburn 1188: my $cachetime = 60*60*24;
1189: my %domconfig =
1190: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1191: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1192: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1193: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1194: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1195: }
1196: }
1197: }
1198: }
1.1126 raeburn 1199: return;
1.1123 raeburn 1200: }
1201:
1.1129 raeburn 1202: sub get_lonbalancer_config {
1203: my ($servers) = @_;
1204: my ($currbalancer,$currtargets);
1205: if (ref($servers) eq 'HASH') {
1206: foreach my $server (keys(%{$servers})) {
1207: my %what = (
1208: spareid => 1,
1209: perlvar => 1,
1210: );
1211: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1212: if ($result eq 'ok') {
1213: if (ref($returnhash) eq 'HASH') {
1214: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1215: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1216: $currbalancer = $server;
1217: $currtargets = {};
1218: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1219: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1220: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1221: }
1222: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1223: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1224: }
1225: }
1226: last;
1227: }
1228: }
1229: }
1230: }
1231: }
1232: }
1233: return ($currbalancer,$currtargets);
1234: }
1235:
1236: sub check_loadbalancing {
1237: my ($uname,$udom) = @_;
1.1172.2.12 raeburn 1238: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1239: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1240: my $lonhost = $perlvar{'lonHostID'};
1.1172.2.4 raeburn 1241: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1242: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1243: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1244: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1245: my $serverhomedom = &host_domain($lonhost);
1246:
1247: my $cachetime = 60*60*24;
1248:
1249: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1250: $dom_in_use = $udom;
1251: $homeintdom = 1;
1252: } else {
1253: $dom_in_use = $serverhomedom;
1254: }
1255: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1256: unless (defined($cached)) {
1257: my %domconfig =
1258: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1259: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1260: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1261: }
1262: }
1263: if (ref($result) eq 'HASH') {
1.1172.2.12 raeburn 1264: ($is_balancer,$currtargets,$currrules) =
1265: &check_balancer_result($result,@hosts);
1.1129 raeburn 1266: if ($is_balancer) {
1267: if (ref($currrules) eq 'HASH') {
1268: if ($homeintdom) {
1269: if ($uname ne '') {
1270: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1271: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1272: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1273: $rule_in_effect = $currrules->{'_LC_author'};
1274: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1275: $rule_in_effect = $currrules->{'_LC_adv'}
1276: }
1277: }
1278: if ($rule_in_effect eq '') {
1279: my %userenv = &userenvironment($udom,$uname,'inststatus');
1280: if ($userenv{'inststatus'} ne '') {
1281: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1282: my ($othertitle,$usertypes,$types) =
1283: &Apache::loncommon::sorted_inst_types($udom);
1284: if (ref($types) eq 'ARRAY') {
1285: foreach my $type (@{$types}) {
1286: if (grep(/^\Q$type\E$/,@statuses)) {
1287: if (exists($currrules->{$type})) {
1288: $rule_in_effect = $currrules->{$type};
1289: }
1290: }
1291: }
1292: }
1293: } else {
1294: if (exists($currrules->{'default'})) {
1295: $rule_in_effect = $currrules->{'default'};
1296: }
1297: }
1298: }
1299: } else {
1300: if (exists($currrules->{'default'})) {
1301: $rule_in_effect = $currrules->{'default'};
1302: }
1303: }
1304: } else {
1305: if ($currrules->{'_LC_external'} ne '') {
1306: $rule_in_effect = $currrules->{'_LC_external'};
1307: }
1308: }
1309: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1310: $uname,$udom);
1311: }
1312: }
1313: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1314: my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1315: unless (defined($cached)) {
1316: my %domconfig =
1317: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1318: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1319: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1320: }
1321: }
1322: if (ref($result) eq 'HASH') {
1.1172.2.12 raeburn 1323: ($is_balancer,$currtargets,$currrules) =
1324: &check_balancer_result($result,@hosts);
1325: if ($is_balancer) {
1.1129 raeburn 1326: if (ref($currrules) eq 'HASH') {
1327: if ($currrules->{'_LC_internetdom'} ne '') {
1328: $rule_in_effect = $currrules->{'_LC_internetdom'};
1329: }
1330: }
1331: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1332: $uname,$udom);
1333: }
1334: } else {
1335: if ($perlvar{'lonBalancer'} eq 'yes') {
1336: $is_balancer = 1;
1337: $offloadto = &this_host_spares($dom_in_use);
1338: }
1339: }
1340: } else {
1341: if ($perlvar{'lonBalancer'} eq 'yes') {
1342: $is_balancer = 1;
1343: $offloadto = &this_host_spares($dom_in_use);
1344: }
1345: }
1.1172.2.5 raeburn 1346: if ($is_balancer) {
1347: my $lowest_load = 30000;
1348: if (ref($offloadto) eq 'HASH') {
1349: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1350: foreach my $try_server (@{$offloadto->{'primary'}}) {
1351: ($otherserver,$lowest_load) =
1352: &compare_server_load($try_server,$otherserver,$lowest_load);
1353: }
1.1129 raeburn 1354: }
1.1172.2.5 raeburn 1355: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1356:
1.1172.2.5 raeburn 1357: if (!$found_server) {
1358: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1359: foreach my $try_server (@{$offloadto->{'default'}}) {
1360: ($otherserver,$lowest_load) =
1361: &compare_server_load($try_server,$otherserver,$lowest_load);
1362: }
1363: }
1364: }
1365: } elsif (ref($offloadto) eq 'ARRAY') {
1366: if (@{$offloadto} == 1) {
1367: $otherserver = $offloadto->[0];
1368: } elsif (@{$offloadto} > 1) {
1369: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1370: ($otherserver,$lowest_load) =
1371: &compare_server_load($try_server,$otherserver,$lowest_load);
1372: }
1373: }
1374: }
1.1172.2.5 raeburn 1375: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1376: $is_balancer = 0;
1377: if ($uname ne '' && $udom ne '') {
1378: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1379:
1380: &appenv({'user.loadbalexempt' => $lonhost,
1381: 'user.loadbalcheck.time' => time});
1382: }
1.1129 raeburn 1383: }
1384: }
1385: }
1386: return ($is_balancer,$otherserver);
1387: }
1388:
1.1172.2.12 raeburn 1389: sub check_balancer_result {
1390: my ($result,@hosts) = @_;
1391: my ($is_balancer,$currtargets,$currrules);
1392: if (ref($result) eq 'HASH') {
1393: if ($result->{'lonhost'} ne '') {
1394: my $currbalancer = $result->{'lonhost'};
1395: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1396: $is_balancer = 1;
1397: $currtargets = $result->{'targets'};
1398: $currrules = $result->{'rules'};
1399: }
1400: } else {
1401: foreach my $key (keys(%{$result})) {
1402: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1403: (ref($result->{$key}) eq 'HASH')) {
1404: $is_balancer = 1;
1405: $currrules = $result->{$key}{'rules'};
1406: $currtargets = $result->{$key}{'targets'};
1407: last;
1408: }
1409: }
1410: }
1411: }
1412: return ($is_balancer,$currtargets,$currrules);
1413: }
1414:
1.1129 raeburn 1415: sub get_loadbalancer_targets {
1416: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1417: my $offloadto;
1.1172.2.4 raeburn 1418: if ($rule_in_effect eq 'none') {
1419: return [$perlvar{'lonHostID'}];
1420: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1421: $offloadto = $currtargets;
1422: } else {
1423: if ($rule_in_effect eq 'homeserver') {
1424: my $homeserver = &homeserver($uname,$udom);
1425: if ($homeserver ne 'no_host') {
1426: $offloadto = [$homeserver];
1427: }
1428: } elsif ($rule_in_effect eq 'externalbalancer') {
1429: my %domconfig =
1430: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1431: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1432: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1433: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1434: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1435: }
1436: }
1437: } else {
1.1172.2.7 raeburn 1438: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1439: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1440: if (&hostname($remotebalancer) ne '') {
1441: $offloadto = [$remotebalancer];
1442: }
1443: }
1444: } elsif (&hostname($rule_in_effect) ne '') {
1445: $offloadto = [$rule_in_effect];
1446: }
1447: }
1448: return $offloadto;
1449: }
1450:
1.1127 raeburn 1451: sub internet_dom_servers {
1452: my ($dom) = @_;
1453: my (%uniqservers,%servers);
1454: my $primaryserver = &hostname(&domain($dom,'primary'));
1455: my @machinedoms = &machine_domains($primaryserver);
1456: foreach my $mdom (@machinedoms) {
1457: my %currservers = %servers;
1458: my %server = &get_servers($mdom);
1459: %servers = (%currservers,%server);
1460: }
1461: my %by_hostname;
1462: foreach my $id (keys(%servers)) {
1463: push(@{$by_hostname{$servers{$id}}},$id);
1464: }
1465: foreach my $hostname (sort(keys(%by_hostname))) {
1466: if (@{$by_hostname{$hostname}} > 1) {
1467: my $match = 0;
1468: foreach my $id (@{$by_hostname{$hostname}}) {
1469: if (&host_domain($id) eq $dom) {
1470: $uniqservers{$id} = $hostname;
1471: $match = 1;
1472: }
1473: }
1474: unless ($match) {
1475: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1476: }
1477: } else {
1478: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1479: }
1480: }
1481: return %uniqservers;
1482: }
1483:
1.1 albertel 1484: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1485:
1.599 albertel 1486: my %homecache;
1.1 albertel 1487: sub homeserver {
1.230 stredwic 1488: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1489: my $index="$uname:$udom";
1.426 albertel 1490:
1.599 albertel 1491: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1492:
1493: my %servers = &get_servers($udom,'library');
1494: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1495: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1496: exists($badServerCache{$tryserver}));
1.841 albertel 1497:
1498: my $answer=reply("home:$udom:$uname",$tryserver);
1499: if ($answer eq 'found') {
1500: delete($badServerCache{$tryserver});
1501: return $homecache{$index}=$tryserver;
1502: } elsif ($answer eq 'no_host') {
1503: $badServerCache{$tryserver}=1;
1504: }
1.1 albertel 1505: }
1506: return 'no_host';
1.70 www 1507: }
1508:
1509: # ------------------------------------- Find the usernames behind a list of IDs
1510:
1511: sub idget {
1512: my ($udom,@ids)=@_;
1513: my %returnhash=();
1514:
1.841 albertel 1515: my %servers = &get_servers($udom,'library');
1516: foreach my $tryserver (keys(%servers)) {
1517: my $idlist=join('&',@ids);
1518: $idlist=~tr/A-Z/a-z/;
1519: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1520: my @answer=();
1521: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1522: @answer=split(/\&/,$reply);
1523: } ;
1524: my $i;
1525: for ($i=0;$i<=$#ids;$i++) {
1526: if ($answer[$i]) {
1527: $returnhash{$ids[$i]}=$answer[$i];
1528: }
1529: }
1530: }
1.70 www 1531: return %returnhash;
1532: }
1533:
1534: # ------------------------------------- Find the IDs behind a list of usernames
1535:
1536: sub idrget {
1537: my ($udom,@unames)=@_;
1538: my %returnhash=();
1.800 albertel 1539: foreach my $uname (@unames) {
1540: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1541: }
1.70 www 1542: return %returnhash;
1543: }
1544:
1545: # ------------------------------- Store away a list of names and associated IDs
1546:
1547: sub idput {
1548: my ($udom,%ids)=@_;
1549: my %servers=();
1.800 albertel 1550: foreach my $uname (keys(%ids)) {
1551: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1552: my $uhom=&homeserver($uname,$udom);
1.70 www 1553: if ($uhom ne 'no_host') {
1.800 albertel 1554: my $id=&escape($ids{$uname});
1.70 www 1555: $id=~tr/A-Z/a-z/;
1.800 albertel 1556: my $esc_unam=&escape($uname);
1.70 www 1557: if ($servers{$uhom}) {
1.800 albertel 1558: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1559: } else {
1.800 albertel 1560: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1561: }
1562: }
1.191 harris41 1563: }
1.800 albertel 1564: foreach my $server (keys(%servers)) {
1565: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1566: }
1.344 www 1567: }
1568:
1.1023 raeburn 1569: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1570: sub dump_dom {
1.1165 droeschl 1571: my ($namespace, $udom, $regexp) = @_;
1572:
1573: $udom ||= $env{'user.domain'};
1574:
1575: return () unless $udom;
1576:
1577: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1578: }
1579:
1.1023 raeburn 1580: # ------------------------------------------ get items from domain db files
1.806 raeburn 1581:
1582: sub get_dom {
1.860 raeburn 1583: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1584: my $items='';
1585: foreach my $item (@$storearr) {
1586: $items.=&escape($item).'&';
1587: }
1588: $items=~s/\&$//;
1.860 raeburn 1589: if (!$udom) {
1590: $udom=$env{'user.domain'};
1591: if (defined(&domain($udom,'primary'))) {
1592: $uhome=&domain($udom,'primary');
1593: } else {
1.874 albertel 1594: undef($uhome);
1.860 raeburn 1595: }
1596: } else {
1597: if (!$uhome) {
1598: if (defined(&domain($udom,'primary'))) {
1599: $uhome=&domain($udom,'primary');
1600: }
1601: }
1602: }
1603: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1604: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1605: my %returnhash;
1.875 albertel 1606: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1607: return %returnhash;
1608: }
1.806 raeburn 1609: my @pairs=split(/\&/,$rep);
1610: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1611: return @pairs;
1612: }
1613: my $i=0;
1614: foreach my $item (@$storearr) {
1615: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1616: $i++;
1617: }
1618: return %returnhash;
1619: } else {
1.880 banghart 1620: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1621: }
1622: }
1623:
1624: # -------------------------------------------- put items in domain db files
1625:
1626: sub put_dom {
1.860 raeburn 1627: my ($namespace,$storehash,$udom,$uhome)=@_;
1628: if (!$udom) {
1629: $udom=$env{'user.domain'};
1630: if (defined(&domain($udom,'primary'))) {
1631: $uhome=&domain($udom,'primary');
1632: } else {
1.874 albertel 1633: undef($uhome);
1.860 raeburn 1634: }
1635: } else {
1636: if (!$uhome) {
1637: if (defined(&domain($udom,'primary'))) {
1638: $uhome=&domain($udom,'primary');
1639: }
1640: }
1641: }
1642: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1643: my $items='';
1644: foreach my $item (keys(%$storehash)) {
1645: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1646: }
1647: $items=~s/\&$//;
1648: return &reply("putdom:$udom:$namespace:$items",$uhome);
1649: } else {
1.860 raeburn 1650: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1651: }
1652: }
1653:
1.1023 raeburn 1654: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1655: sub newput_dom {
1.1023 raeburn 1656: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1657: my $result;
1658: if (!$udom) {
1659: $udom=$env{'user.domain'};
1660: }
1.1023 raeburn 1661: if ($udom) {
1662: my $uname = &get_domainconfiguser($udom);
1663: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1664: }
1665: return $result;
1666: }
1667:
1.1023 raeburn 1668: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1669: sub del_dom {
1.1023 raeburn 1670: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1671: if (ref($storearr) eq 'ARRAY') {
1672: if (!$udom) {
1673: $udom=$env{'user.domain'};
1674: }
1.1023 raeburn 1675: if ($udom) {
1676: my $uname = &get_domainconfiguser($udom);
1677: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1678: }
1679: }
1680: }
1681:
1.1023 raeburn 1682: # ----------------------------------construct domainconfig user for a domain
1683: sub get_domainconfiguser {
1684: my ($udom) = @_;
1685: return $udom.'-domainconfig';
1686: }
1687:
1.837 raeburn 1688: sub retrieve_inst_usertypes {
1689: my ($udom) = @_;
1690: my (%returnhash,@order);
1.989 raeburn 1691: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1692: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1693: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1694: %returnhash = %{$domdefs{'inststatustypes'}};
1695: @order = @{$domdefs{'inststatusorder'}};
1696: } else {
1697: if (defined(&domain($udom,'primary'))) {
1698: my $uhome=&domain($udom,'primary');
1699: my $rep=&reply("inst_usertypes:$udom",$uhome);
1700: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1701: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1702: return (\%returnhash,\@order);
1703: }
1704: my ($hashitems,$orderitems) = split(/:/,$rep);
1705: my @pairs=split(/\&/,$hashitems);
1706: foreach my $item (@pairs) {
1707: my ($key,$value)=split(/=/,$item,2);
1708: $key = &unescape($key);
1709: next if ($key =~ /^error: 2 /);
1710: $returnhash{$key}=&thaw_unescape($value);
1711: }
1712: my @esc_order = split(/\&/,$orderitems);
1713: foreach my $item (@esc_order) {
1714: push(@order,&unescape($item));
1715: }
1716: } else {
1717: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1718: }
1719: }
1720: return (\%returnhash,\@order);
1721: }
1722:
1.868 raeburn 1723: sub is_domainimage {
1724: my ($url) = @_;
1725: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1726: if (&domain($1) ne '') {
1727: return '1';
1728: }
1729: }
1730: return;
1731: }
1732:
1.899 raeburn 1733: sub inst_directory_query {
1734: my ($srch) = @_;
1735: my $udom = $srch->{'srchdomain'};
1736: my %results;
1737: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1738: my $outcome;
1.899 raeburn 1739: if ($homeserver ne '') {
1.904 albertel 1740: my $queryid=&reply("querysend:instdirsearch:".
1741: &escape($srch->{'srchby'}).':'.
1742: &escape($srch->{'srchterm'}).':'.
1743: &escape($srch->{'srchtype'}),$homeserver);
1744: my $host=&hostname($homeserver);
1745: if ($queryid !~/^\Q$host\E\_/) {
1746: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1747: return;
1748: }
1749: my $response = &get_query_reply($queryid);
1750: my $maxtries = 5;
1751: my $tries = 1;
1752: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1753: $response = &get_query_reply($queryid);
1754: $tries ++;
1755: }
1756:
1757: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1758: if ($response eq 'unavailable') {
1759: $outcome = $response;
1760: } else {
1761: $outcome = 'ok';
1762: my @matches = split(/\n/,$response);
1763: foreach my $match (@matches) {
1764: my ($key,$value) = split(/=/,$match);
1765: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1766: }
1.899 raeburn 1767: }
1768: }
1769: }
1.909 raeburn 1770: return ($outcome,%results);
1.899 raeburn 1771: }
1772:
1773: sub usersearch {
1774: my ($srch) = @_;
1775: my $dom = $srch->{'srchdomain'};
1776: my %results;
1777: my %libserv = &all_library();
1778: my $query = 'usersearch';
1779: foreach my $tryserver (keys(%libserv)) {
1780: if (&host_domain($tryserver) eq $dom) {
1781: my $host=&hostname($tryserver);
1782: my $queryid=
1.911 raeburn 1783: &reply("querysend:".&escape($query).':'.
1784: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1785: &escape($srch->{'srchtype'}).':'.
1786: &escape($srch->{'srchterm'}),$tryserver);
1787: if ($queryid !~/^\Q$host\E\_/) {
1788: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1789: next;
1.899 raeburn 1790: }
1791: my $reply = &get_query_reply($queryid);
1792: my $maxtries = 1;
1793: my $tries = 1;
1794: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1795: $reply = &get_query_reply($queryid);
1796: $tries ++;
1797: }
1798: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1799: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1800: } else {
1.911 raeburn 1801: my @matches;
1802: if ($reply =~ /\n/) {
1803: @matches = split(/\n/,$reply);
1804: } else {
1805: @matches = split(/\&/,$reply);
1806: }
1.899 raeburn 1807: foreach my $match (@matches) {
1808: my ($uname,$udom,%userhash);
1.911 raeburn 1809: foreach my $entry (split(/:/,$match)) {
1810: my ($key,$value) =
1811: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1812: $userhash{$key} = $value;
1813: if ($key eq 'username') {
1814: $uname = $value;
1815: } elsif ($key eq 'domain') {
1816: $udom = $value;
1.911 raeburn 1817: }
1.899 raeburn 1818: }
1819: $results{$uname.':'.$udom} = \%userhash;
1820: }
1821: }
1822: }
1823: }
1824: return %results;
1825: }
1826:
1.912 raeburn 1827: sub get_instuser {
1828: my ($udom,$uname,$id) = @_;
1829: my $homeserver = &domain($udom,'primary');
1830: my ($outcome,%results);
1831: if ($homeserver ne '') {
1832: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1833: &escape($id).':'.&escape($udom),$homeserver);
1834: my $host=&hostname($homeserver);
1835: if ($queryid !~/^\Q$host\E\_/) {
1836: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1837: return;
1838: }
1839: my $response = &get_query_reply($queryid);
1840: my $maxtries = 5;
1841: my $tries = 1;
1842: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1843: $response = &get_query_reply($queryid);
1844: $tries ++;
1845: }
1846: if (!&error($response) && $response ne 'refused') {
1847: if ($response eq 'unavailable') {
1848: $outcome = $response;
1849: } else {
1850: $outcome = 'ok';
1851: my @matches = split(/\n/,$response);
1852: foreach my $match (@matches) {
1853: my ($key,$value) = split(/=/,$match);
1854: $results{&unescape($key)} = &thaw_unescape($value);
1855: }
1856: }
1857: }
1858: }
1859: my %userinfo;
1860: if (ref($results{$uname}) eq 'HASH') {
1861: %userinfo = %{$results{$uname}};
1862: }
1863: return ($outcome,%userinfo);
1864: }
1865:
1866: sub inst_rulecheck {
1.923 raeburn 1867: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1868: my %returnhash;
1869: if ($udom ne '') {
1870: if (ref($rules) eq 'ARRAY') {
1871: @{$rules} = map {&escape($_);} (@{$rules});
1872: my $rulestr = join(':',@{$rules});
1873: my $homeserver=&domain($udom,'primary');
1874: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1875: my $response;
1876: if ($item eq 'username') {
1877: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1878: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1879: $homeserver));
1.923 raeburn 1880: } elsif ($item eq 'id') {
1881: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1882: ':'.&escape($id).':'.$rulestr,
1883: $homeserver));
1.945 raeburn 1884: } elsif ($item eq 'selfcreate') {
1885: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1886: &escape($udom).':'.&escape($uname).
1887: ':'.$rulestr,$homeserver));
1.923 raeburn 1888: }
1.912 raeburn 1889: if ($response ne 'refused') {
1890: my @pairs=split(/\&/,$response);
1891: foreach my $item (@pairs) {
1892: my ($key,$value)=split(/=/,$item,2);
1893: $key = &unescape($key);
1894: next if ($key =~ /^error: 2 /);
1895: $returnhash{$key}=&thaw_unescape($value);
1896: }
1897: }
1898: }
1899: }
1900: }
1901: return %returnhash;
1902: }
1903:
1904: sub inst_userrules {
1.923 raeburn 1905: my ($udom,$check) = @_;
1.912 raeburn 1906: my (%ruleshash,@ruleorder);
1907: if ($udom ne '') {
1908: my $homeserver=&domain($udom,'primary');
1909: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1910: my $response;
1911: if ($check eq 'id') {
1912: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1913: $homeserver);
1.943 raeburn 1914: } elsif ($check eq 'email') {
1915: $response=&reply('instemailrules:'.&escape($udom),
1916: $homeserver);
1.923 raeburn 1917: } else {
1918: $response=&reply('instuserrules:'.&escape($udom),
1919: $homeserver);
1920: }
1.912 raeburn 1921: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1922: ($response ne 'unknown_cmd') &&
1.912 raeburn 1923: ($response ne 'no_such_host')) {
1924: my ($hashitems,$orderitems) = split(/:/,$response);
1925: my @pairs=split(/\&/,$hashitems);
1926: foreach my $item (@pairs) {
1927: my ($key,$value)=split(/=/,$item,2);
1928: $key = &unescape($key);
1929: next if ($key =~ /^error: 2 /);
1930: $ruleshash{$key}=&thaw_unescape($value);
1931: }
1932: my @esc_order = split(/\&/,$orderitems);
1933: foreach my $item (@esc_order) {
1934: push(@ruleorder,&unescape($item));
1935: }
1936: }
1937: }
1938: }
1939: return (\%ruleshash,\@ruleorder);
1940: }
1941:
1.976 raeburn 1942: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1943:
1944: sub get_domain_defaults {
1945: my ($domain) = @_;
1946: my $cachetime = 60*60*24;
1947: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1948: if (defined($cached)) {
1949: if (ref($result) eq 'HASH') {
1950: return %{$result};
1951: }
1952: }
1953: my %domdefaults;
1954: my %domconfig =
1.989 raeburn 1955: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1956: 'requestcourses','inststatus',
1.1172.2.9 raeburn 1957: 'coursedefaults','usersessions',
1958: 'requestauthor'],$domain);
1.943 raeburn 1959: if (ref($domconfig{'defaults'}) eq 'HASH') {
1960: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1961: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1962: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1963: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1964: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 1965: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.943 raeburn 1966: } else {
1967: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1968: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1969: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1970: }
1.976 raeburn 1971: if (ref($domconfig{'quotas'}) eq 'HASH') {
1972: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1973: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1974: } else {
1975: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1976: }
1.1172.2.6 raeburn 1977: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 1978: foreach my $item (@usertools) {
1979: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1980: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1981: }
1982: }
1983: }
1.985 raeburn 1984: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1985: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1986: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1987: }
1988: }
1.1172.2.9 raeburn 1989: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
1990: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
1991: }
1.989 raeburn 1992: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1993: foreach my $item ('inststatustypes','inststatusorder') {
1994: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1995: }
1996: }
1.1047 raeburn 1997: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1998: foreach my $item ('canuse_pdfforms') {
1999: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
2000: }
2001: }
1.1073 raeburn 2002: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2003: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2004: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2005: }
2006: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2007: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2008: }
2009: }
1.943 raeburn 2010: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
2011: $cachetime);
2012: return %domdefaults;
2013: }
2014:
1.344 www 2015: # --------------------------------------------------- Assign a key to a student
2016:
2017: sub assign_access_key {
1.364 www 2018: #
2019: # a valid key looks like uname:udom#comments
2020: # comments are being appended
2021: #
1.498 www 2022: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2023: $kdom=
1.620 albertel 2024: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2025: $knum=
1.620 albertel 2026: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2027: $cdom=
1.620 albertel 2028: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2029: $cnum=
1.620 albertel 2030: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2031: $udom=$env{'user.name'} unless (defined($udom));
2032: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2033: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2034: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2035: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2036: # assigned to this person
2037: # - this should not happen,
1.345 www 2038: # unless something went wrong
2039: # the first time around
2040: # ready to assign
1.364 www 2041: $logentry=$1.'; '.$logentry;
1.496 www 2042: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2043: $kdom,$knum) eq 'ok') {
1.345 www 2044: # key now belongs to user
1.346 www 2045: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2046: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2047: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2048: return 'ok';
2049: } else {
2050: return
2051: 'error: Count not permanently assign key, will need to be re-entered later.';
2052: }
2053: } else {
2054: return 'error: Could not assign key, try again later.';
2055: }
1.364 www 2056: } elsif (!$existing{$ckey}) {
1.345 www 2057: # the key does not exist
2058: return 'error: The key does not exist';
2059: } else {
2060: # the key is somebody else's
2061: return 'error: The key is already in use';
2062: }
1.344 www 2063: }
2064:
1.364 www 2065: # ------------------------------------------ put an additional comment on a key
2066:
2067: sub comment_access_key {
2068: #
2069: # a valid key looks like uname:udom#comments
2070: # comments are being appended
2071: #
2072: my ($ckey,$cdom,$cnum,$logentry)=@_;
2073: $cdom=
1.620 albertel 2074: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2075: $cnum=
1.620 albertel 2076: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2077: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2078: if ($existing{$ckey}) {
2079: $existing{$ckey}.='; '.$logentry;
2080: # ready to assign
1.367 www 2081: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2082: $cdom,$cnum) eq 'ok') {
2083: return 'ok';
2084: } else {
2085: return 'error: Count not store comment.';
2086: }
2087: } else {
2088: # the key does not exist
2089: return 'error: The key does not exist';
2090: }
2091: }
2092:
1.344 www 2093: # ------------------------------------------------------ Generate a set of keys
2094:
2095: sub generate_access_keys {
1.364 www 2096: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2097: $cdom=
1.620 albertel 2098: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2099: $cnum=
1.620 albertel 2100: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2101: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2102: unless (($cdom) && ($cnum)) { return 0; }
2103: if ($number>10000) { return 0; }
2104: sleep(2); # make sure don't get same seed twice
2105: srand(time()^($$+($$<<15))); # from "Programming Perl"
2106: my $total=0;
2107: for (my $i=1;$i<=$number;$i++) {
2108: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2109: sprintf("%lx",int(100000*rand)).'-'.
2110: sprintf("%lx",int(100000*rand));
2111: $newkey=~s/1/g/g; # folks mix up 1 and l
2112: $newkey=~s/0/h/g; # and also 0 and O
2113: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2114: if ($existing{$newkey}) {
2115: $i--;
2116: } else {
1.364 www 2117: if (&put('accesskeys',
2118: { $newkey => '# generated '.localtime().
1.620 albertel 2119: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2120: '; '.$logentry },
2121: $cdom,$cnum) eq 'ok') {
1.344 www 2122: $total++;
2123: }
2124: }
2125: }
1.620 albertel 2126: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2127: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2128: return $total;
2129: }
2130:
2131: # ------------------------------------------------------- Validate an accesskey
2132:
2133: sub validate_access_key {
2134: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2135: $cdom=
1.620 albertel 2136: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2137: $cnum=
1.620 albertel 2138: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2139: $udom=$env{'user.domain'} unless (defined($udom));
2140: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2141: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2142: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2143: }
2144:
2145: # ------------------------------------- Find the section of student in a course
1.652 albertel 2146: sub devalidate_getsection_cache {
2147: my ($udom,$unam,$courseid)=@_;
2148: my $hashid="$udom:$unam:$courseid";
2149: &devalidate_cache_new('getsection',$hashid);
2150: }
1.298 matthew 2151:
1.815 albertel 2152: sub courseid_to_courseurl {
2153: my ($courseid) = @_;
2154: #already url style courseid
2155: return $courseid if ($courseid =~ m{^/});
2156:
2157: if (exists($env{'course.'.$courseid.'.num'})) {
2158: my $cnum = $env{'course.'.$courseid.'.num'};
2159: my $cdom = $env{'course.'.$courseid.'.domain'};
2160: return "/$cdom/$cnum";
2161: }
2162:
2163: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2164: if (exists($courseinfo{'num'})) {
2165: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2166: }
2167:
2168: return undef;
2169: }
2170:
1.298 matthew 2171: sub getsection {
2172: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2173: my $cachetime=1800;
1.551 albertel 2174:
2175: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2176: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2177: if (defined($cached)) { return $result; }
2178:
1.298 matthew 2179: my %Pending;
2180: my %Expired;
2181: #
2182: # Each role can either have not started yet (pending), be active,
2183: # or have expired.
2184: #
2185: # If there is an active role, we are done.
2186: #
2187: # If there is more than one role which has not started yet,
2188: # choose the one which will start sooner
2189: # If there is one role which has not started yet, return it.
2190: #
2191: # If there is more than one expired role, choose the one which ended last.
2192: # If there is a role which has expired, return it.
2193: #
1.815 albertel 2194: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2195: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2196: foreach my $key (keys(%roleshash)) {
1.479 albertel 2197: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2198: my $section=$1;
2199: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2200: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2201: my $now=time;
1.548 albertel 2202: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2203: $Expired{$end}=$section;
2204: next;
2205: }
1.548 albertel 2206: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2207: $Pending{$start}=$section;
2208: next;
2209: }
1.599 albertel 2210: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2211: }
2212: #
2213: # Presumedly there will be few matching roles from the above
2214: # loop and the sorting time will be negligible.
2215: if (scalar(keys(%Pending))) {
2216: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2217: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2218: }
2219: if (scalar(keys(%Expired))) {
2220: my @sorted = sort {$a <=> $b} keys(%Expired);
2221: my $time = pop(@sorted);
1.599 albertel 2222: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2223: }
1.599 albertel 2224: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2225: }
1.70 www 2226:
1.599 albertel 2227: sub save_cache {
2228: &purge_remembered();
1.722 albertel 2229: #&Apache::loncommon::validate_page();
1.620 albertel 2230: undef(%env);
1.780 albertel 2231: undef($env_loaded);
1.599 albertel 2232: }
1.452 albertel 2233:
1.599 albertel 2234: my $to_remember=-1;
2235: my %remembered;
2236: my %accessed;
2237: my $kicks=0;
2238: my $hits=0;
1.849 albertel 2239: sub make_key {
2240: my ($name,$id) = @_;
1.872 albertel 2241: if (length($id) > 65
2242: && length(&escape($id)) > 200) {
2243: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2244: }
1.849 albertel 2245: return &escape($name.':'.$id);
2246: }
2247:
1.599 albertel 2248: sub devalidate_cache_new {
2249: my ($name,$id,$debug) = @_;
2250: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 2251: $id=&make_key($name,$id);
1.599 albertel 2252: $memcache->delete($id);
2253: delete($remembered{$id});
2254: delete($accessed{$id});
2255: }
2256:
2257: sub is_cached_new {
2258: my ($name,$id,$debug) = @_;
1.849 albertel 2259: $id=&make_key($name,$id);
1.599 albertel 2260: if (exists($remembered{$id})) {
1.1133 foxr 2261: if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
1.599 albertel 2262: $accessed{$id}=[&gettimeofday()];
2263: $hits++;
2264: return ($remembered{$id},1);
2265: }
2266: my $value = $memcache->get($id);
2267: if (!(defined($value))) {
2268: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2269: return (undef,undef);
1.416 albertel 2270: }
1.599 albertel 2271: if ($value eq '__undef__') {
2272: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2273: $value=undef;
2274: }
2275: &make_room($id,$value,$debug);
2276: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2277: return ($value,1);
2278: }
2279:
2280: sub do_cache_new {
2281: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 2282: $id=&make_key($name,$id);
1.599 albertel 2283: my $setvalue=$value;
2284: if (!defined($setvalue)) {
2285: $setvalue='__undef__';
2286: }
1.623 albertel 2287: if (!defined($time) ) {
2288: $time=600;
2289: }
1.599 albertel 2290: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2291: my $result = $memcache->set($id,$setvalue,$time);
2292: if (! $result) {
1.872 albertel 2293: &logthis("caching of id -> $id failed");
1.910 albertel 2294: $memcache->disconnect_all();
1.872 albertel 2295: }
1.600 albertel 2296: # need to make a copy of $value
1.919 albertel 2297: &make_room($id,$value,$debug);
1.599 albertel 2298: return $value;
2299: }
2300:
2301: sub make_room {
2302: my ($id,$value,$debug)=@_;
1.919 albertel 2303:
2304: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
2305: : $value;
1.599 albertel 2306: if ($to_remember<0) { return; }
2307: $accessed{$id}=[&gettimeofday()];
2308: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2309: my $to_kick;
2310: my $max_time=0;
2311: foreach my $other (keys(%accessed)) {
2312: if (&tv_interval($accessed{$other}) > $max_time) {
2313: $to_kick=$other;
2314: $max_time=&tv_interval($accessed{$other});
2315: }
2316: }
2317: delete($remembered{$to_kick});
2318: delete($accessed{$to_kick});
2319: $kicks++;
2320: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2321: return;
2322: }
2323:
1.599 albertel 2324: sub purge_remembered {
1.604 albertel 2325: #&logthis("Tossing ".scalar(keys(%remembered)));
2326: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2327: undef(%remembered);
2328: undef(%accessed);
1.428 albertel 2329: }
1.70 www 2330: # ------------------------------------- Read an entry from a user's environment
2331:
2332: sub userenvironment {
2333: my ($udom,$unam,@what)=@_;
1.976 raeburn 2334: my $items;
2335: foreach my $item (@what) {
2336: $items.=&escape($item).'&';
2337: }
2338: $items=~s/\&$//;
1.70 www 2339: my %returnhash=();
1.1009 raeburn 2340: my $uhome = &homeserver($unam,$udom);
2341: unless ($uhome eq 'no_host') {
2342: my @answer=split(/\&/,
2343: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2344: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2345: return %returnhash;
2346: }
1.1009 raeburn 2347: my $i;
2348: for ($i=0;$i<=$#what;$i++) {
2349: $returnhash{$what[$i]}=&unescape($answer[$i]);
2350: }
1.70 www 2351: }
2352: return %returnhash;
1.1 albertel 2353: }
2354:
1.617 albertel 2355: # ---------------------------------------------------------- Get a studentphoto
2356: sub studentphoto {
2357: my ($udom,$unam,$ext) = @_;
2358: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2359: if (defined($env{'request.course.id'})) {
1.708 raeburn 2360: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2361: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2362: return(&retrievestudentphoto($udom,$unam,$ext));
2363: } else {
2364: my ($result,$perm_reqd)=
1.707 albertel 2365: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2366: if ($result eq 'ok') {
2367: if (!($perm_reqd eq 'yes')) {
2368: return(&retrievestudentphoto($udom,$unam,$ext));
2369: }
2370: }
2371: }
2372: }
2373: } else {
2374: my ($result,$perm_reqd) =
1.707 albertel 2375: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2376: if ($result eq 'ok') {
2377: if (!($perm_reqd eq 'yes')) {
2378: return(&retrievestudentphoto($udom,$unam,$ext));
2379: }
2380: }
2381: }
2382: return '/adm/lonKaputt/lonlogo_broken.gif';
2383: }
2384:
2385: sub retrievestudentphoto {
2386: my ($udom,$unam,$ext,$type) = @_;
2387: my $home=&Apache::lonnet::homeserver($unam,$udom);
2388: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2389: if ($ret eq 'ok') {
2390: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2391: if ($type eq 'thumbnail') {
2392: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2393: }
2394: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2395: return $tokenurl;
2396: } else {
2397: if ($type eq 'thumbnail') {
2398: return '/adm/lonKaputt/genericstudent_tn.gif';
2399: } else {
2400: return '/adm/lonKaputt/lonlogo_broken.gif';
2401: }
1.617 albertel 2402: }
2403: }
2404:
1.263 www 2405: # -------------------------------------------------------------------- New chat
2406:
2407: sub chatsend {
1.724 raeburn 2408: my ($newentry,$anon,$group)=@_;
1.620 albertel 2409: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2410: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2411: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2412: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2413: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2414: &escape($newentry)).':'.$group,$chome);
1.292 www 2415: }
2416:
2417: # ------------------------------------------ Find current version of a resource
2418:
2419: sub getversion {
2420: my $fname=&clutter(shift);
1.1172.2.10 raeburn 2421: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2422: return ¤tversion(&filelocation('',$fname));
2423: }
2424:
2425: sub currentversion {
2426: my $fname=shift;
2427: my $author=$fname;
2428: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2429: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2430: my $home=&homeserver($uname,$udom);
1.292 www 2431: if ($home eq 'no_host') {
2432: return -1;
2433: }
1.1112 www 2434: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2435: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2436: return -1;
2437: }
1.1112 www 2438: return $answer;
1.263 www 2439: }
2440:
1.1111 www 2441: #
2442: # Return special version number of resource if set by override, empty otherwise
2443: #
2444: sub usedversion {
2445: my $fname=shift;
2446: unless ($fname) { $fname=$env{'request.uri'}; }
2447: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2448: if ($urlversion) { return $urlversion; }
2449: return '';
2450: }
2451:
1.1 albertel 2452: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2453:
1.1 albertel 2454: sub subscribe {
2455: my $fname=shift;
1.761 raeburn 2456: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2457: $fname=~s/[\n\r]//g;
1.1 albertel 2458: my $author=$fname;
2459: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2460: my ($udom,$uname)=split(/\//,$author);
2461: my $home=homeserver($uname,$udom);
1.335 albertel 2462: if ($home eq 'no_host') {
2463: return 'not_found';
1.1 albertel 2464: }
2465: my $answer=reply("sub:$fname",$home);
1.64 www 2466: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2467: $answer.=' by '.$home;
2468: }
1.1 albertel 2469: return $answer;
2470: }
2471:
1.8 www 2472: # -------------------------------------------------------------- Replicate file
2473:
2474: sub repcopy {
2475: my $filename=shift;
1.23 www 2476: $filename=~s/\/+/\//g;
1.1142 raeburn 2477: my $londocroot = $perlvar{'lonDocRoot'};
2478: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2479: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2480: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2481: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2482: return &repcopy_userfile($filename);
2483: }
1.532 albertel 2484: $filename=~s/[\n\r]//g;
1.8 www 2485: my $transname="$filename.in.transfer";
1.828 www 2486: # FIXME: this should flock
1.607 raeburn 2487: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2488: my $remoteurl=subscribe($filename);
1.64 www 2489: if ($remoteurl =~ /^con_lost by/) {
2490: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2491: return 'unavailable';
1.8 www 2492: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2493: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2494: return 'not_found';
1.64 www 2495: } elsif ($remoteurl =~ /^rejected by/) {
2496: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2497: return 'forbidden';
1.20 www 2498: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2499: return 'ok';
1.8 www 2500: } else {
1.290 www 2501: my $author=$filename;
2502: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2503: my ($udom,$uname)=split(/\//,$author);
2504: my $home=homeserver($uname,$udom);
2505: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2506: my @parts=split(/\//,$filename);
2507: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2508: if ($path ne "$londocroot/res") {
1.8 www 2509: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2510: return 'bad_request';
1.8 www 2511: }
2512: my $count;
2513: for ($count=5;$count<$#parts;$count++) {
2514: $path.="/$parts[$count]";
2515: if ((-e $path)!=1) {
2516: mkdir($path,0777);
2517: }
2518: }
2519: my $ua=new LWP::UserAgent;
2520: my $request=new HTTP::Request('GET',"$remoteurl");
2521: my $response=$ua->request($request,$transname);
2522: if ($response->is_error()) {
2523: unlink($transname);
2524: my $message=$response->status_line;
1.672 albertel 2525: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2526: ." LWP get: $message: $filename</font>");
1.607 raeburn 2527: return 'unavailable';
1.8 www 2528: } else {
1.16 www 2529: if ($remoteurl!~/\.meta$/) {
2530: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2531: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2532: if ($mresponse->is_error()) {
2533: unlink($filename.'.meta');
2534: &logthis(
1.672 albertel 2535: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2536: }
2537: }
1.8 www 2538: rename($transname,$filename);
1.607 raeburn 2539: return 'ok';
1.8 www 2540: }
1.290 www 2541: }
1.8 www 2542: }
1.330 www 2543: }
2544:
2545: # ------------------------------------------------ Get server side include body
2546: sub ssi_body {
1.381 albertel 2547: my ($filelink,%form)=@_;
1.606 matthew 2548: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2549: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2550: }
1.953 www 2551: my $output='';
2552: my $response;
1.980 raeburn 2553: if ($filelink=~/^https?\:/) {
1.954 raeburn 2554: ($output,$response)=&externalssi($filelink);
1.953 www 2555: } else {
1.1004 droeschl 2556: $filelink .= $filelink=~/\?/ ? '&' : '?';
2557: $filelink .= 'inhibitmenu=yes';
1.953 www 2558: ($output,$response)=&ssi($filelink,%form);
2559: }
1.778 albertel 2560: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2561: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2562: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2563: if (wantarray) {
2564: return ($output, $response);
2565: } else {
2566: return $output;
2567: }
1.8 www 2568: }
2569:
1.15 www 2570: # --------------------------------------------------------- Server Side Include
2571:
1.782 albertel 2572: sub absolute_url {
2573: my ($host_name) = @_;
2574: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2575: if ($host_name eq '') {
2576: $host_name = $ENV{'SERVER_NAME'};
2577: }
2578: return $protocol.$host_name;
2579: }
2580:
1.942 foxr 2581: #
2582: # Server side include.
2583: # Parameters:
2584: # fn Possibly encrypted resource name/id.
2585: # form Hash that describes how the rendering should be done
2586: # and other things.
1.944 foxr 2587: # Returns:
1.950 raeburn 2588: # Scalar context: The content of the response.
2589: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2590: #
1.15 www 2591: sub ssi {
2592:
1.944 foxr 2593: my ($fn,%form)=@_;
1.15 www 2594: my $ua=new LWP::UserAgent;
1.23 www 2595: my $request;
1.711 albertel 2596:
2597: $form{'no_update_last_known'}=1;
1.895 albertel 2598: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2599: if (%form) {
1.782 albertel 2600: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2601: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2602: } else {
1.782 albertel 2603: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2604: }
2605:
1.15 www 2606: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1172.2.2 raeburn 2607: my $response= $ua->request($request);
1.944 foxr 2608: if (wantarray) {
1.1172.2.3 raeburn 2609: return ($response->content, $response);
1.944 foxr 2610: } else {
1.1172.2.3 raeburn 2611: return $response->content;
1.942 foxr 2612: }
1.324 www 2613: }
2614:
2615: sub externalssi {
2616: my ($url)=@_;
2617: my $ua=new LWP::UserAgent;
2618: my $request=new HTTP::Request('GET',$url);
2619: my $response=$ua->request($request);
1.954 raeburn 2620: if (wantarray) {
2621: return ($response->content, $response);
2622: } else {
2623: return $response->content;
2624: }
1.15 www 2625: }
1.254 www 2626:
1.492 albertel 2627: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2628:
2629: sub allowuploaded {
2630: my ($srcurl,$url)=@_;
2631: $url=&clutter(&declutter($url));
2632: my $dir=$url;
2633: $dir=~s/\/[^\/]+$//;
2634: my %httpref=();
2635: my $httpurl=&hreflocation('',$url);
2636: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2637: &Apache::lonnet::appenv(\%httpref);
1.254 www 2638: }
1.477 raeburn 2639:
1.1172.2.13 raeburn 2640: #
2641: # Determine if the current user should be able to edit a particular resource,
2642: # when viewing in course context.
2643: # (a) When viewing resource used to determine if "Edit" item is included in
2644: # Functions.
2645: # (b) When displaying folder contents in course editor, used to determine if
2646: # "Edit" link will be displayed alongside resource.
2647: #
2648: # input: six args -- filename (decluttered), course number, course domain,
2649: # url, symb (if registered) and group (if this is a group
2650: # item -- e.g., bulletin board, group page etc.).
2651: # output: array of five scalars --
2652: # $cfile -- url for file editing if editable on current server
2653: # $home -- homeserver of resource (i.e., for author if published,
2654: # or course if uploaded.).
2655: # $switchserver -- 1 if server switch will be needed.
2656: # $forceedit -- 1 if icon/link should be to go to edit mode
2657: # $forceview -- 1 if icon/link should be to go to view mode
2658: #
2659:
2660: sub can_edit_resource {
2661: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
2662: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
2663: #
2664: # For aboutme pages user can only edit his/her own.
2665: #
2666: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
2667: my ($sdom,$sname) = ($1,$2);
2668: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
2669: $home = $env{'user.home'};
2670: $cfile = $resurl;
2671: if ($env{'form.forceedit'}) {
2672: $forceview = 1;
2673: } else {
2674: $forceedit = 1;
2675: }
2676: return ($cfile,$home,$switchserver,$forceedit,$forceview);
2677: } else {
2678: return;
2679: }
2680: }
2681:
2682: if ($env{'request.course.id'}) {
2683: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
2684: if ($group ne '') {
2685: # if this is a group homepage or group bulletin board, check group privs
2686: my $allowed = 0;
2687: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
2688: if ((&allowed('mdg',$env{'request.course.id'}.
2689: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
2690: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
2691: $allowed = 1;
2692: }
2693: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
2694: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
2695: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
2696: $allowed = 1;
2697: }
2698: }
2699: if ($allowed) {
2700: $home=&homeserver($cnum,$cdom);
2701: if ($env{'form.forceedit'}) {
2702: $forceview = 1;
2703: } else {
2704: $forceedit = 1;
2705: }
2706: $cfile = $resurl;
2707: } else {
2708: return;
2709: }
2710: } else {
1.1172.2.15 raeburn 2711: if ($resurl =~ m{^/?adm/viewclasslist$}) {
2712: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
2713: return;
2714: }
2715: } elsif (!$crsedit) {
1.1172.2.13 raeburn 2716: #
2717: # No edit allowed where CC has switched to student role.
2718: #
2719: return;
2720: }
2721: }
2722: }
2723:
2724: if ($file ne '') {
2725: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
2726: if (&is_course_upload($file,$cnum,$cdom)) {
2727: $uploaded = 1;
2728: $incourse = 1;
2729: if ($file =~/\.(htm|html|css|js|txt)$/) {
2730: $cfile = &hreflocation('',$file);
2731: if ($env{'form.forceedit'}) {
2732: $forceview = 1;
2733: } else {
2734: $forceedit = 1;
2735: }
2736: }
2737: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
2738: $incourse = 1;
2739: if ($env{'form.forceedit'}) {
2740: $forceview = 1;
2741: } else {
2742: $forceedit = 1;
2743: }
2744: $cfile = $resurl;
2745: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
2746: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
2747: $incourse = 1;
2748: if ($env{'form.forceedit'}) {
2749: $forceview = 1;
2750: } else {
2751: $forceedit = 1;
2752: }
2753: $cfile = $resurl;
2754: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
2755: $incourse = 1;
2756: $cfile = $resurl.'/smpedit';
2757: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
2758: $incourse = 1;
2759: if ($env{'form.forceedit'}) {
2760: $forceview = 1;
2761: } else {
2762: $forceedit = 1;
2763: }
2764: $cfile = $resurl;
1.1172.2.15 raeburn 2765: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
2766: $incourse = 1;
2767: if ($env{'form.forceedit'}) {
2768: $forceview = 1;
2769: } else {
2770: $forceedit = 1;
2771: }
2772: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1172.2.13 raeburn 2773: }
2774: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
2775: my $template = '/res/lib/templates/simpleproblem.problem';
2776: if (&is_on_map($template)) {
2777: $incourse = 1;
2778: $forceview = 1;
2779: $cfile = $template;
2780: }
2781: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
2782: $incourse = 1;
2783: if ($env{'form.forceedit'}) {
2784: $forceview = 1;
2785: } else {
2786: $forceedit = 1;
2787: }
2788: $cfile = $resurl;
2789: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
2790: $incourse = 1;
2791: $forceview = 1;
2792: if ($symb) {
2793: my ($map,$id,$res)=&decode_symb($symb);
2794: $env{'request.symb'} = $symb;
2795: $cfile = &clutter($res);
2796: } else {
2797: $cfile = $env{'form.suppurl'};
2798: $cfile =~ s{^http://}{};
2799: $cfile = '/adm/wrapper/ext/'.$cfile;
2800: }
2801: }
2802: }
2803: if ($uploaded || $incourse) {
2804: $home=&homeserver($cnum,$cdom);
1.1172.2.14 raeburn 2805: } elsif ($file !~ m{/$}) {
1.1172.2.13 raeburn 2806: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
2807: $file=~s{^($match_domain/$match_username)}{/priv/$1};
2808: # Check that the user has permission to edit this resource
2809: my $setpriv = 1;
2810: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
2811: if (defined($cfudom)) {
2812: $home=&homeserver($cfuname,$cfudom);
2813: $cfile=$file;
2814: }
2815: }
2816: if (($cfile ne '') && (!$incourse || $uploaded) &&
2817: (($home ne '') && ($home ne 'no_host'))) {
2818: my @ids=¤t_machine_ids();
2819: unless (grep(/^\Q$home\E$/,@ids)) {
2820: $switchserver=1;
2821: }
2822: }
2823: }
2824: return ($cfile,$home,$switchserver,$forceedit,$forceview);
2825: }
2826:
2827: sub is_course_upload {
2828: my ($file,$cnum,$cdom) = @_;
2829: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
2830: $uploadpath =~ s{^\/}{};
2831: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
2832: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
2833: return 1;
2834: }
2835: return;
2836: }
2837:
2838: sub in_course {
2839: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
2840: if ($hideprivileged) {
2841: my $skipuser;
2842: if (&privileged($uname,$udom)) {
2843: $skipuser = 1;
2844: my %coursehash = &coursedescription($cdom.'_'.$cnum);
2845: if ($coursehash{'nothideprivileged'}) {
2846: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2847: my $user;
2848: if ($item =~ /:/) {
2849: $user = $item;
2850: } else {
2851: $user = join(':',split(/[\@]/,$item));
2852: }
2853: if ($user eq $uname.':'.$udom) {
2854: undef($skipuser);
2855: last;
2856: }
2857: }
2858: }
2859: if ($skipuser) {
2860: return 0;
2861: }
2862: }
2863: }
2864: $type ||= 'any';
2865: if (!defined($cdom) || !defined($cnum)) {
2866: my $cid = $env{'request.course.id'};
2867: $cdom = $env{'course.'.$cid.'.domain'};
2868: $cnum = $env{'course.'.$cid.'.num'};
2869: }
2870: my $typesref;
2871: if (($type eq 'any') || ($type eq 'all')) {
2872: $typesref = ['active','previous','future'];
2873: } elsif ($type eq 'previous' || $type eq 'future') {
2874: $typesref = [$type];
2875: }
2876: my %roles = &get_my_roles($uname,$udom,'userroles',
2877: $typesref,undef,[$cdom]);
2878: my ($tmp) = keys(%roles);
2879: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
2880: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
2881: if (@course_roles > 0) {
2882: return 1;
2883: }
2884: return 0;
2885: }
2886:
1.478 albertel 2887: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2888: # input: action, courseID, current domain, intended
1.637 raeburn 2889: # path to file, source of file, instruction to parse file for objects,
2890: # ref to hash for embedded objects,
2891: # ref to hash for codebase of java objects.
1.1095 raeburn 2892: # reference to scalar to accommodate mime type determined
2893: # from File::MMagic if $parser = parse.
1.637 raeburn 2894: #
1.485 raeburn 2895: # output: url to file (if action was uploaddoc),
2896: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2897: #
1.478 albertel 2898: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2899: # course.
1.477 raeburn 2900: #
1.478 albertel 2901: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2902: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2903: # course's home server.
1.477 raeburn 2904: #
1.478 albertel 2905: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2906: # be copied from $source (current location) to
2907: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2908: # and will then be copied to
2909: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2910: # course's home server.
1.485 raeburn 2911: #
1.481 raeburn 2912: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2913: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2914: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2915: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2916: # in course's home server.
1.637 raeburn 2917: #
1.477 raeburn 2918:
2919: sub process_coursefile {
1.1095 raeburn 2920: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
2921: $mimetype)=@_;
1.477 raeburn 2922: my $fetchresult;
1.638 albertel 2923: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2924: if ($action eq 'propagate') {
1.638 albertel 2925: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2926: $home);
1.481 raeburn 2927: } else {
1.477 raeburn 2928: my $fpath = '';
2929: my $fname = $file;
1.478 albertel 2930: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2931: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2932: my $filepath = &build_filepath($fpath);
1.481 raeburn 2933: if ($action eq 'copy') {
2934: if ($source eq '') {
2935: $fetchresult = 'no source file';
2936: return $fetchresult;
2937: } else {
2938: my $destination = $filepath.'/'.$fname;
2939: rename($source,$destination);
2940: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2941: $home);
1.481 raeburn 2942: }
2943: } elsif ($action eq 'uploaddoc') {
2944: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2945: print $fh $env{'form.'.$source};
1.481 raeburn 2946: close($fh);
1.637 raeburn 2947: if ($parser eq 'parse') {
1.1024 raeburn 2948: my $mm = new File::MMagic;
1.1095 raeburn 2949: my $type = $mm->checktype_filename($filepath.'/'.$fname);
2950: if ($type eq 'text/html') {
1.1024 raeburn 2951: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2952: unless ($parse_result eq 'ok') {
2953: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2954: }
1.637 raeburn 2955: }
1.1095 raeburn 2956: if (ref($mimetype)) {
2957: $$mimetype = $type;
2958: }
1.637 raeburn 2959: }
1.477 raeburn 2960: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2961: $home);
1.481 raeburn 2962: if ($fetchresult eq 'ok') {
2963: return '/uploaded/'.$fpath.'/'.$fname;
2964: } else {
2965: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2966: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2967: return '/adm/notfound.html';
2968: }
1.477 raeburn 2969: }
2970: }
1.485 raeburn 2971: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2972: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2973: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2974: }
2975: return $fetchresult;
2976: }
2977:
1.637 raeburn 2978: sub build_filepath {
2979: my ($fpath) = @_;
2980: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2981: unless ($fpath eq '') {
2982: my @parts=split('/',$fpath);
2983: foreach my $part (@parts) {
2984: $filepath.= '/'.$part;
2985: if ((-e $filepath)!=1) {
2986: mkdir($filepath,0777);
2987: }
2988: }
2989: }
2990: return $filepath;
2991: }
2992:
2993: sub store_edited_file {
1.638 albertel 2994: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2995: my $file = $primary_url;
2996: $file =~ s#^/uploaded/$docudom/$docuname/##;
2997: my $fpath = '';
2998: my $fname = $file;
2999: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3000: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3001: my $filepath = &build_filepath($fpath);
3002: open(my $fh,'>'.$filepath.'/'.$fname);
3003: print $fh $content;
3004: close($fh);
1.638 albertel 3005: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3006: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3007: $home);
1.637 raeburn 3008: if ($$fetchresult eq 'ok') {
3009: return '/uploaded/'.$fpath.'/'.$fname;
3010: } else {
1.638 albertel 3011: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3012: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3013: return '/adm/notfound.html';
3014: }
3015: }
3016:
1.531 albertel 3017: sub clean_filename {
1.831 albertel 3018: my ($fname,$args)=@_;
1.315 www 3019: # Replace Windows backslashes by forward slashes
1.257 www 3020: $fname=~s/\\/\//g;
1.831 albertel 3021: if (!$args->{'keep_path'}) {
3022: # Get rid of everything but the actual filename
3023: $fname=~s/^.*\/([^\/]+)$/$1/;
3024: }
1.315 www 3025: # Replace spaces by underscores
3026: $fname=~s/\s+/\_/g;
3027: # Replace all other weird characters by nothing
1.831 albertel 3028: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3029: # Replace all .\d. sequences with _\d. so they no longer look like version
3030: # numbers
3031: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3032: return $fname;
3033: }
1.1051 raeburn 3034: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3035: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3036: # image with the same aspect ratio as the original, but with dimensions which do
3037: # not exceed $resizewidth and $resizeheight.
3038:
1.984 neumanie 3039: sub resizeImage {
1.1051 raeburn 3040: my ($img_path,$resizewidth,$resizeheight) = @_;
3041: my $ima = Image::Magick->new;
3042: my $resized;
3043: if (-e $img_path) {
3044: $ima->Read($img_path);
3045: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3046: my $width = $ima->Get('width');
3047: my $height = $ima->Get('height');
3048: if ($width > $resizewidth) {
3049: my $factor = $width/$resizewidth;
3050: my $newheight = $height/$factor;
3051: $ima->Scale(width=>$resizewidth,height=>$newheight);
3052: $resized = 1;
3053: }
3054: }
3055: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3056: my $width = $ima->Get('width');
3057: my $height = $ima->Get('height');
3058: if ($height > $resizeheight) {
3059: my $factor = $height/$resizeheight;
3060: my $newwidth = $width/$factor;
3061: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3062: $resized = 1;
3063: }
3064: }
3065: if ($resized) {
3066: $ima->Write($img_path);
3067: }
3068: }
3069: return;
1.977 amueller 3070: }
3071:
1.608 albertel 3072: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3073: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3074: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3075: # $context - possible values: coursedoc, existingfile, overwrite,
3076: # canceloverwrite, or ''.
3077: # if 'coursedoc': upload to the current course
3078: # if 'existingfile': write file to tmp/overwrites directory
3079: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3080: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3081: # $subdir - directory in userfile to store the file into
1.858 raeburn 3082: # $parser - instruction to parse file for objects ($parser = parse)
3083: # $allfiles - reference to hash for embedded objects
3084: # $codebase - reference to hash for codebase of java objects
3085: # $desuname - username for permanent storage of uploaded file
3086: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3087: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3088: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3089: # $resizewidth - width (pixels) to which to resize uploaded image
3090: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3091: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3092: # from File::MMagic.
1.858 raeburn 3093: #
1.686 albertel 3094: # output: url of file in userspace, or error: <message>
3095: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3096:
1.531 albertel 3097: sub userfileupload {
1.1090 raeburn 3098: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3099: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3100: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3101: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3102: $fname=&clean_filename($fname);
1.1090 raeburn 3103: # See if there is anything left
1.257 www 3104: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3105: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3106: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3107: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3108: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3109: my $now = time;
1.1090 raeburn 3110: my $filepath;
1.1095 raeburn 3111: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3112: $filepath = 'tmp/helprequests/'.$now;
3113: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3114: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3115: '_'.$env{'user.domain'}.'/pending';
3116: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3117: my ($docuname,$docudom);
3118: if ($destudom) {
3119: $docudom = $destudom;
3120: } else {
3121: $docudom = $env{'user.domain'};
3122: }
3123: if ($destuname) {
3124: $docuname = $destuname;
3125: } else {
3126: $docuname = $env{'user.name'};
3127: }
3128: if (exists($env{'form.group'})) {
3129: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3130: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3131: }
3132: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3133: if ($context eq 'canceloverwrite') {
3134: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3135: if (-e $tempfile) {
3136: my @info = stat($tempfile);
3137: if ($info[9] eq $env{'form.timestamp'}) {
3138: unlink($tempfile);
3139: }
3140: }
3141: return;
1.523 raeburn 3142: }
3143: }
1.1090 raeburn 3144: # Create the directory if not present
1.741 raeburn 3145: my @parts=split(/\//,$filepath);
3146: my $fullpath = $perlvar{'lonDaemons'};
3147: for (my $i=0;$i<@parts;$i++) {
3148: $fullpath .= '/'.$parts[$i];
3149: if ((-e $fullpath)!=1) {
3150: mkdir($fullpath,0777);
3151: }
3152: }
3153: open(my $fh,'>'.$fullpath.'/'.$fname);
3154: print $fh $env{'form.'.$formname};
3155: close($fh);
1.1090 raeburn 3156: if ($context eq 'existingfile') {
3157: my @info = stat($fullpath.'/'.$fname);
3158: return ($fullpath.'/'.$fname,$info[9]);
3159: } else {
3160: return $fullpath.'/'.$fname;
3161: }
1.523 raeburn 3162: }
1.995 raeburn 3163: if ($subdir eq 'scantron') {
3164: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3165: } else {
1.995 raeburn 3166: $fname="$subdir/$fname";
3167: }
1.1090 raeburn 3168: if ($context eq 'coursedoc') {
1.638 albertel 3169: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3170: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3171: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3172: return &finishuserfileupload($docuname,$docudom,
3173: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3174: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3175: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3176: } else {
1.620 albertel 3177: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 3178: return &process_coursefile('uploaddoc',$docuname,$docudom,
3179: $fname,$formname,$parser,
1.1095 raeburn 3180: $allfiles,$codebase,$mimetype);
1.481 raeburn 3181: }
1.719 banghart 3182: } elsif (defined($destuname)) {
3183: my $docuname=$destuname;
3184: my $docudom=$destudom;
1.860 raeburn 3185: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3186: $parser,$allfiles,$codebase,
1.1051 raeburn 3187: $thumbwidth,$thumbheight,
1.1095 raeburn 3188: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3189: } else {
1.638 albertel 3190: my $docuname=$env{'user.name'};
3191: my $docudom=$env{'user.domain'};
1.714 raeburn 3192: if (exists($env{'form.group'})) {
3193: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3194: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3195: }
1.860 raeburn 3196: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3197: $parser,$allfiles,$codebase,
1.1051 raeburn 3198: $thumbwidth,$thumbheight,
1.1095 raeburn 3199: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3200: }
1.271 www 3201: }
3202:
3203: sub finishuserfileupload {
1.860 raeburn 3204: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3205: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3206: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3207: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3208:
1.860 raeburn 3209: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3210: $file=$fname;
3211: if ($fname=~m|/|) {
3212: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3213: $path.=$fnamepath.'/';
3214: }
1.259 www 3215: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3216: my $count;
3217: for ($count=4;$count<=$#parts;$count++) {
3218: $filepath.="/$parts[$count]";
3219: if ((-e $filepath)!=1) {
3220: mkdir($filepath,0777);
3221: }
3222: }
1.984 neumanie 3223:
1.258 www 3224: # Save the file
3225: {
1.701 albertel 3226: if (!open(FH,'>'.$filepath.'/'.$file)) {
3227: &logthis('Failed to create '.$filepath.'/'.$file);
3228: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3229: return '/adm/notfound.html';
3230: }
1.1090 raeburn 3231: if ($context eq 'overwrite') {
1.1117 foxr 3232: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3233: my $target = $filepath.'/'.$file;
3234: if (-e $source) {
3235: my @info = stat($source);
3236: if ($info[9] eq $env{'form.timestamp'}) {
3237: unless (&File::Copy::move($source,$target)) {
3238: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3239: return "Moving from $source failed";
3240: }
3241: } else {
3242: return "Temporary file: $source had unexpected date/time for last modification";
3243: }
3244: } else {
3245: return "Temporary file: $source missing";
3246: }
3247: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3248: &logthis('Failed to write to '.$filepath.'/'.$file);
3249: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3250: return '/adm/notfound.html';
3251: }
1.570 albertel 3252: close(FH);
1.1051 raeburn 3253: if ($resizewidth && $resizeheight) {
3254: my $mm = new File::MMagic;
3255: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3256: if ($mime_type =~ m{^image/}) {
3257: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3258: }
1.977 amueller 3259: }
1.258 www 3260: }
1.1152 raeburn 3261: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3262: if (ref($mimetype)) {
3263: if ($$mimetype eq '') {
3264: my $mm = new File::MMagic;
3265: my $type = $mm->checktype_filename($filepath.'/'.$file);
3266: $$mimetype = $type;
3267: }
3268: }
3269: }
1.637 raeburn 3270: if ($parser eq 'parse') {
1.1152 raeburn 3271: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3272: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3273: $allfiles,$codebase);
3274: unless ($parse_result eq 'ok') {
3275: &logthis('Failed to parse '.$filepath.$file.
3276: ' for embedded media: '.$parse_result);
3277: }
1.637 raeburn 3278: }
3279: }
1.860 raeburn 3280: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3281: my $input = $filepath.'/'.$file;
3282: my $output = $filepath.'/'.'tn-'.$file;
3283: my $thumbsize = $thumbwidth.'x'.$thumbheight;
3284: system("convert -sample $thumbsize $input $output");
3285: if (-e $filepath.'/'.'tn-'.$file) {
3286: $fetchthumb = 1;
3287: }
3288: }
1.858 raeburn 3289:
1.259 www 3290: # Notify homeserver to grep it
3291: #
1.984 neumanie 3292: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3293: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3294: if ($fetchresult eq 'ok') {
1.860 raeburn 3295: if ($fetchthumb) {
3296: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3297: if ($thumbresult ne 'ok') {
3298: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3299: $docuhome.': '.$thumbresult);
3300: }
3301: }
1.259 www 3302: #
1.258 www 3303: # Return the URL to it
1.494 albertel 3304: return '/uploaded/'.$path.$file;
1.263 www 3305: } else {
1.494 albertel 3306: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3307: ': '.$fetchresult);
1.263 www 3308: return '/adm/notfound.html';
1.858 raeburn 3309: }
1.493 albertel 3310: }
3311:
1.637 raeburn 3312: sub extract_embedded_items {
1.961 raeburn 3313: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3314: my @state = ();
1.1164 raeburn 3315: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3316: my %javafiles = (
3317: codebase => '',
3318: code => '',
3319: archive => ''
3320: );
3321: my %mediafiles = (
3322: src => '',
3323: movie => '',
3324: );
1.648 raeburn 3325: my $p;
3326: if ($content) {
3327: $p = HTML::LCParser->new($content);
3328: } else {
1.961 raeburn 3329: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3330: }
1.641 albertel 3331: while (my $t=$p->get_token()) {
1.640 albertel 3332: if ($t->[0] eq 'S') {
3333: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3334: push(@state, $tagname);
1.648 raeburn 3335: if (lc($tagname) eq 'allow') {
3336: &add_filetype($allfiles,$attr->{'src'},'src');
3337: }
1.640 albertel 3338: if (lc($tagname) eq 'img') {
3339: &add_filetype($allfiles,$attr->{'src'},'src');
3340: }
1.886 albertel 3341: if (lc($tagname) eq 'a') {
3342: &add_filetype($allfiles,$attr->{'href'},'href');
3343: }
1.645 raeburn 3344: if (lc($tagname) eq 'script') {
1.1164 raeburn 3345: my $src;
1.645 raeburn 3346: if ($attr->{'archive'} =~ /\.jar$/i) {
3347: &add_filetype($allfiles,$attr->{'archive'},'archive');
3348: } else {
1.1164 raeburn 3349: if ($attr->{'src'} ne '') {
3350: $src = $attr->{'src'};
3351: &add_filetype($allfiles,$src,'src');
3352: }
3353: }
3354: my $text = $p->get_trimmed_text();
3355: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3356: my @swfargs = split(/,/,$1);
3357: foreach my $item (@swfargs) {
3358: $item =~ s/["']//g;
3359: $item =~ s/^\s+//;
3360: $item =~ s/\s+$//;
3361: }
3362: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3363: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3364: push(@{$related{$swfargs[0]}},$swfargs[2]);
3365: } else {
3366: $related{$swfargs[0]} = [$swfargs[2]];
3367: }
3368: }
1.645 raeburn 3369: }
3370: }
3371: if (lc($tagname) eq 'link') {
3372: if (lc($attr->{'rel'}) eq 'stylesheet') {
3373: &add_filetype($allfiles,$attr->{'href'},'href');
3374: }
3375: }
1.640 albertel 3376: if (lc($tagname) eq 'object' ||
3377: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3378: foreach my $item (keys(%javafiles)) {
3379: $javafiles{$item} = '';
3380: }
1.1164 raeburn 3381: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3382: $lastids{lc($tagname)} = $attr->{'id'};
3383: }
1.640 albertel 3384: }
3385: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3386: my $name = lc($attr->{'name'});
3387: foreach my $item (keys(%javafiles)) {
3388: if ($name eq $item) {
3389: $javafiles{$item} = $attr->{'value'};
3390: last;
3391: }
3392: }
1.1164 raeburn 3393: my $pathfrom;
1.640 albertel 3394: foreach my $item (keys(%mediafiles)) {
3395: if ($name eq $item) {
1.1164 raeburn 3396: $pathfrom = $attr->{'value'};
3397: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3398: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3399: last;
3400: }
3401: }
1.1164 raeburn 3402: if ($name eq 'flashvars') {
3403: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3404: }
3405: if ($pathfrom ne '') {
3406: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3407: $pathfrom);
3408: }
1.640 albertel 3409: }
3410: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3411: foreach my $item (keys(%javafiles)) {
3412: if ($attr->{$item}) {
3413: $javafiles{$item} = $attr->{$item};
3414: last;
3415: }
3416: }
3417: foreach my $item (keys(%mediafiles)) {
3418: if ($attr->{$item}) {
3419: &add_filetype($allfiles,$attr->{$item},$item);
3420: last;
3421: }
3422: }
1.1164 raeburn 3423: if (lc($tagname) eq 'embed') {
3424: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3425: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3426: $attr->{'src'});
3427: }
3428: }
1.640 albertel 3429: }
1.1164 raeburn 3430: if ($t->[4] =~ m{/>$}) {
3431: pop(@state);
3432: }
1.640 albertel 3433: } elsif ($t->[0] eq 'E') {
3434: my ($tagname) = ($t->[1]);
3435: if ($javafiles{'codebase'} ne '') {
3436: $javafiles{'codebase'} .= '/';
3437: }
3438: if (lc($tagname) eq 'applet' ||
3439: lc($tagname) eq 'object' ||
3440: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3441: ) {
3442: foreach my $item (keys(%javafiles)) {
3443: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3444: my $file=$javafiles{'codebase'}.$javafiles{$item};
3445: &add_filetype($allfiles,$file,$item);
3446: }
3447: }
3448: }
3449: pop @state;
3450: }
3451: }
1.1164 raeburn 3452: foreach my $id (sort(keys(%flashvars))) {
3453: if ($shockwave{$id} ne '') {
3454: my @pairs = split(/\&/,$flashvars{$id});
3455: foreach my $pair (@pairs) {
3456: my ($key,$value) = split(/\=/,$pair);
3457: if ($key eq 'thumb') {
3458: &add_filetype($allfiles,$value,$key);
3459: } elsif ($key eq 'content') {
3460: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3461: my ($ext) = ($value =~ /\.([^.]+)$/);
3462: if ($ext ne '') {
3463: &add_filetype($allfiles,$path.$value,$ext);
3464: }
3465: }
3466: }
3467: }
3468: }
1.637 raeburn 3469: return 'ok';
3470: }
3471:
1.639 albertel 3472: sub add_filetype {
3473: my ($allfiles,$file,$type)=@_;
3474: if (exists($allfiles->{$file})) {
3475: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3476: push(@{$allfiles->{$file}}, &escape($type));
3477: }
3478: } else {
3479: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3480: }
3481: }
3482:
1.1164 raeburn 3483: sub embedded_dependency {
3484: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3485: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3486: if (($identifier ne '') &&
3487: (ref($related->{$identifier}) eq 'ARRAY') &&
3488: ($pathfrom ne '')) {
3489: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3490: foreach my $dep (@{$related->{$identifier}}) {
3491: &add_filetype($allfiles,$path.$dep,'object');
3492: }
3493: }
3494: }
3495: return;
3496: }
3497:
1.493 albertel 3498: sub removeuploadedurl {
1.984 neumanie 3499: my ($url)=@_;
3500: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3501: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3502: }
3503:
3504: sub removeuserfile {
3505: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3506: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3507: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3508: if ($result eq 'ok') {
1.798 raeburn 3509: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3510: my $metafile = $fname.'.meta';
3511: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3512: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3513: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3514: my $sqlresult =
1.823 albertel 3515: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3516: 'portfolio_metadata',$group,
3517: 'delete');
1.798 raeburn 3518: }
3519: }
3520: return $result;
1.257 www 3521: }
1.15 www 3522:
1.530 albertel 3523: sub mkdiruserfile {
3524: my ($docuname,$docudom,$dir)=@_;
3525: my $home=&homeserver($docuname,$docudom);
3526: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3527: }
3528:
1.531 albertel 3529: sub renameuserfile {
3530: my ($docuname,$docudom,$old,$new)=@_;
3531: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3532: my $result = &reply("renameuserfile:$docudom:$docuname:".
3533: &escape("$old").':'.&escape("$new"),$home);
3534: if ($result eq 'ok') {
3535: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3536: my $oldmeta = $old.'.meta';
3537: my $newmeta = $new.'.meta';
3538: my $metaresult =
3539: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3540: my $url = "/uploaded/$docudom/$docuname/$old";
3541: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3542: my $sqlresult =
1.823 albertel 3543: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3544: 'portfolio_metadata',$group,
3545: 'delete');
1.798 raeburn 3546: }
3547: }
3548: return $result;
1.531 albertel 3549: }
3550:
1.14 www 3551: # ------------------------------------------------------------------------- Log
3552:
3553: sub log {
3554: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3555: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3556: }
3557:
3558: # ------------------------------------------------------------------ Course Log
1.352 www 3559: #
3560: # This routine flushes several buffers of non-mission-critical nature
3561: #
1.157 www 3562:
3563: sub flushcourselogs {
1.352 www 3564: &logthis('Flushing log buffers');
3565: #
3566: # course logs
3567: # This is a log of all transactions in a course, which can be used
3568: # for data mining purposes
3569: #
3570: # It also collects the courseid database, which lists last transaction
3571: # times and course titles for all courseids
3572: #
3573: my %courseidbuffer=();
1.921 raeburn 3574: foreach my $crsid (keys(%courselogs)) {
1.352 www 3575: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3576: &escape($courselogs{$crsid}),
3577: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3578: delete $courselogs{$crsid};
3579: } else {
3580: &logthis('Failed to flush log buffer for '.$crsid);
3581: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3582: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3583: " exceeded maximum size, deleting.</font>");
3584: delete $courselogs{$crsid};
3585: }
1.352 www 3586: }
1.920 raeburn 3587: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3588: 'description' => $coursedescrbuf{$crsid},
3589: 'inst_code' => $courseinstcodebuf{$crsid},
3590: 'type' => $coursetypebuf{$crsid},
3591: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3592: };
1.191 harris41 3593: }
1.352 www 3594: #
3595: # Write course id database (reverse lookup) to homeserver of courses
3596: # Is used in pickcourse
3597: #
1.840 albertel 3598: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3599: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3600: $courseidbuffer{$crs_home},
3601: $crs_home,'timeonly');
1.352 www 3602: }
3603: #
3604: # File accesses
3605: # Writes to the dynamic metadata of resources to get hit counts, etc.
3606: #
1.449 matthew 3607: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3608: if ($entry =~ /___count$/) {
3609: my ($dom,$name);
1.807 albertel 3610: ($dom,$name,undef)=
1.811 albertel 3611: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3612: if (! defined($dom) || $dom eq '' ||
3613: ! defined($name) || $name eq '') {
1.620 albertel 3614: my $cid = $env{'request.course.id'};
3615: $dom = $env{'request.'.$cid.'.domain'};
3616: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3617: }
1.450 matthew 3618: my $value = $accesshash{$entry};
3619: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3620: my %temphash=($url => $value);
1.449 matthew 3621: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3622: if ($result eq 'ok') {
3623: delete $accesshash{$entry};
3624: }
3625: } else {
1.811 albertel 3626: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 3627: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 3628: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 3629: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
3630: delete $accesshash{$entry};
3631: }
1.185 www 3632: }
1.191 harris41 3633: }
1.352 www 3634: #
3635: # Roles
3636: # Reverse lookup of user roles for course faculty/staff and co-authorship
3637: #
1.800 albertel 3638: foreach my $entry (keys(%userrolehash)) {
1.351 www 3639: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 3640: split(/\:/,$entry);
3641: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 3642: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 3643: $rudom,$runame) eq 'ok') {
3644: delete $userrolehash{$entry};
3645: }
3646: }
1.662 raeburn 3647: #
3648: # Reverse lookup of domain roles (dc, ad, li, sc, au)
3649: #
3650: my %domrolebuffer = ();
1.1000 raeburn 3651: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 3652: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 3653: if ($domrolebuffer{$rudom}) {
3654: $domrolebuffer{$rudom}.='&'.&escape($entry).
3655: '='.&escape($domainrolehash{$entry});
3656: } else {
3657: $domrolebuffer{$rudom}.=&escape($entry).
3658: '='.&escape($domainrolehash{$entry});
3659: }
3660: delete $domainrolehash{$entry};
3661: }
3662: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 3663: my %servers = &get_servers($dom,'library');
3664: foreach my $tryserver (keys(%servers)) {
3665: unless (&reply('domroleput:'.$dom.':'.
3666: $domrolebuffer{$dom},$tryserver) eq 'ok') {
3667: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
3668: }
1.662 raeburn 3669: }
3670: }
1.186 www 3671: $dumpcount++;
1.157 www 3672: }
3673:
3674: sub courselog {
3675: my $what=shift;
1.158 www 3676: $what=time.':'.$what;
1.620 albertel 3677: unless ($env{'request.course.id'}) { return ''; }
3678: $coursedombuf{$env{'request.course.id'}}=
3679: $env{'course.'.$env{'request.course.id'}.'.domain'};
3680: $coursenumbuf{$env{'request.course.id'}}=
3681: $env{'course.'.$env{'request.course.id'}.'.num'};
3682: $coursehombuf{$env{'request.course.id'}}=
3683: $env{'course.'.$env{'request.course.id'}.'.home'};
3684: $coursedescrbuf{$env{'request.course.id'}}=
3685: $env{'course.'.$env{'request.course.id'}.'.description'};
3686: $courseinstcodebuf{$env{'request.course.id'}}=
3687: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3688: $courseownerbuf{$env{'request.course.id'}}=
3689: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3690: $coursetypebuf{$env{'request.course.id'}}=
3691: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3692: if (defined $courselogs{$env{'request.course.id'}}) {
3693: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3694: } else {
1.620 albertel 3695: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3696: }
1.620 albertel 3697: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3698: &flushcourselogs();
3699: }
1.158 www 3700: }
3701:
3702: sub courseacclog {
3703: my $fnsymb=shift;
1.620 albertel 3704: unless ($env{'request.course.id'}) { return ''; }
3705: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 3706: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 3707: $what.=':POST';
1.583 matthew 3708: # FIXME: Probably ought to escape things....
1.800 albertel 3709: foreach my $key (keys(%env)) {
3710: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3711: my $formitem = $1;
3712: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3713: $what.=':'.$formitem.'='.$env{$key};
3714: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3715: $what.=':'.$formitem.'='.$env{$key};
3716: }
1.158 www 3717: }
1.191 harris41 3718: }
1.583 matthew 3719: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3720: # FIXME: We should not be depending on a form parameter that someone
3721: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3722: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3723: $what.= ':POST';
3724: # FIXME: Probably ought to escape things....
3725: foreach my $element ('courseexp','crsfulltext','crsrelated',
3726: 'crsdiscuss') {
1.620 albertel 3727: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3728: }
3729: }
1.158 www 3730: }
3731: &courselog($what);
1.149 www 3732: }
3733:
1.185 www 3734: sub countacc {
3735: my $url=&declutter(shift);
1.458 matthew 3736: return if (! defined($url) || $url eq '');
1.620 albertel 3737: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 3738: #
3739: # Mark that this url was used in this course
3740: #
1.620 albertel 3741: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 3742: #
3743: # Increase the access count for this resource in this child process
3744: #
1.281 www 3745: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3746: $accesshash{$key}++;
1.185 www 3747: }
1.349 www 3748:
1.361 www 3749: sub linklog {
3750: my ($from,$to)=@_;
3751: $from=&declutter($from);
3752: $to=&declutter($to);
3753: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3754: $accesshash{$to.'___'.$from.'___goto'}=1;
3755: }
1.1160 www 3756:
3757: sub statslog {
3758: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
3759: if ($users<2) { return; }
3760: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
3761: 'course' => $env{'request.course.id'},
3762: 'sections' => '"all"',
3763: 'num_students' => $users,
3764: 'part' => $part,
3765: 'symb' => $symb,
3766: 'mean_tries' => $av_attempts,
3767: 'deg_of_diff' => $degdiff});
3768: foreach my $key (keys(%dynstore)) {
3769: $accesshash{$key}=$dynstore{$key};
3770: }
3771: }
1.361 www 3772:
1.349 www 3773: sub userrolelog {
3774: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 3775: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 3776: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3777: $userrolehash
3778: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3779: =$tend.':'.$tstart;
1.662 raeburn 3780: }
1.1169 droeschl 3781: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 3782: $userrolehash
3783: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3784: =$tend.':'.$tstart;
3785: }
1.1169 droeschl 3786: if ($trole =~ /^(dc|ad|li|au|dg|sc)/ ) {
1.662 raeburn 3787: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3788: $domainrolehash
3789: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3790: = $tend.':'.$tstart;
3791: }
1.351 www 3792: }
3793:
1.957 raeburn 3794: sub courserolelog {
3795: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1172.2.9 raeburn 3796: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
3797: my $cdom = $1;
3798: my $cnum = $2;
3799: my $sec = $3;
3800: my $namespace = 'rolelog';
3801: my %storehash = (
3802: role => $trole,
3803: start => $tstart,
3804: end => $tend,
3805: selfenroll => $selfenroll,
3806: context => $context,
3807: );
3808: if ($trole eq 'gr') {
3809: $namespace = 'groupslog';
3810: $storehash{'group'} = $sec;
3811: } else {
3812: $storehash{'section'} = $sec;
3813: }
3814: &write_log('course',$namespace,\%storehash,$delflag,$username,
3815: $domain,$cnum,$cdom);
3816: if (($trole ne 'st') || ($sec ne '')) {
3817: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 3818: }
3819: }
3820: return;
3821: }
3822:
1.1172.2.9 raeburn 3823: sub domainrolelog {
3824: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3825: if ($area =~ m{^/($match_domain)/$}) {
3826: my $cdom = $1;
3827: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
3828: my $namespace = 'rolelog';
3829: my %storehash = (
3830: role => $trole,
3831: start => $tstart,
3832: end => $tend,
3833: context => $context,
3834: );
3835: &write_log('domain',$namespace,\%storehash,$delflag,$username,
3836: $domain,$domconfiguser,$cdom);
3837: }
3838: return;
3839:
3840: }
3841:
3842: sub coauthorrolelog {
3843: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3844: if ($area =~ m{^/($match_domain)/($match_username)$}) {
3845: my $audom = $1;
3846: my $auname = $2;
3847: my $namespace = 'rolelog';
3848: my %storehash = (
3849: role => $trole,
3850: start => $tstart,
3851: end => $tend,
3852: context => $context,
3853: );
3854: &write_log('author',$namespace,\%storehash,$delflag,$username,
3855: $domain,$auname,$audom);
3856: }
3857: return;
3858: }
3859:
1.351 www 3860: sub get_course_adv_roles {
1.948 raeburn 3861: my ($cid,$codes) = @_;
1.620 albertel 3862: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 3863: my %coursehash=&coursedescription($cid);
1.988 raeburn 3864: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 3865: my %nothide=();
1.800 albertel 3866: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 3867: if ($user !~ /:/) {
3868: $nothide{join(':',split(/[\@]/,$user))}=1;
3869: } else {
3870: $nothide{$user}=1;
3871: }
1.470 www 3872: }
1.351 www 3873: my %returnhash=();
3874: my %dumphash=
3875: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
3876: my $now=time;
1.997 raeburn 3877: my %privileged;
1.1000 raeburn 3878: foreach my $entry (keys(%dumphash)) {
1.800 albertel 3879: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 3880: if (($tstart) && ($tstart<0)) { next; }
3881: if (($tend) && ($tend<$now)) { next; }
3882: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 3883: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 3884: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 3885: unless (ref($privileged{$domain}) eq 'HASH') {
3886: my %dompersonnel =
1.998 raeburn 3887: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3888: $privileged{$domain} = {};
3889: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3890: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3891: foreach my $user (keys(%{$dompersonnel{$server}})) {
3892: my ($trole,$uname,$udom) = split(/:/,$user);
3893: $privileged{$udom}{$uname} = 1;
3894: }
3895: }
3896: }
3897: }
3898: if ((exists($privileged{$domain}{$username})) &&
3899: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3900: if ($role eq 'cr') { next; }
1.948 raeburn 3901: if ($codes) {
3902: if ($section) { $role .= ':'.$section; }
3903: if ($returnhash{$role}) {
3904: $returnhash{$role}.=','.$username.':'.$domain;
3905: } else {
3906: $returnhash{$role}=$username.':'.$domain;
3907: }
1.351 www 3908: } else {
1.988 raeburn 3909: my $key=&plaintext($role,$crstype);
1.973 bisitz 3910: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3911: if ($returnhash{$key}) {
3912: $returnhash{$key}.=','.$username.':'.$domain;
3913: } else {
3914: $returnhash{$key}=$username.':'.$domain;
3915: }
1.351 www 3916: }
1.948 raeburn 3917: }
1.400 www 3918: return %returnhash;
3919: }
3920:
3921: sub get_my_roles {
1.937 raeburn 3922: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3923: unless (defined($uname)) { $uname=$env{'user.name'}; }
3924: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3925: my (%dumphash,%nothide);
1.1086 raeburn 3926: if ($context eq 'userroles') {
1.1166 raeburn 3927: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 3928: } else {
3929: %dumphash=
1.400 www 3930: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3931: if ($hidepriv) {
3932: my %coursehash=&coursedescription($udom.'_'.$uname);
3933: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3934: if ($user !~ /:/) {
3935: $nothide{join(':',split(/[\@]/,$user))} = 1;
3936: } else {
3937: $nothide{$user} = 1;
3938: }
3939: }
3940: }
1.858 raeburn 3941: }
1.400 www 3942: my %returnhash=();
3943: my $now=time;
1.999 raeburn 3944: my %privileged;
1.800 albertel 3945: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3946: my ($role,$tend,$tstart);
3947: if ($context eq 'userroles') {
1.1149 raeburn 3948: next if ($entry =~ /^rolesdef/);
1.867 raeburn 3949: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3950: } else {
3951: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3952: }
1.400 www 3953: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3954: my $status = 'active';
1.939 raeburn 3955: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3956: $status = 'previous';
3957: }
3958: if (($tstart) && ($now<$tstart)) {
3959: $status = 'future';
3960: }
3961: if (ref($types) eq 'ARRAY') {
3962: if (!grep(/^\Q$status\E$/,@{$types})) {
3963: next;
3964: }
3965: } else {
3966: if ($status ne 'active') {
3967: next;
3968: }
3969: }
1.867 raeburn 3970: my ($rolecode,$username,$domain,$section,$area);
3971: if ($context eq 'userroles') {
1.1172.2.9 raeburn 3972: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 3973: (undef,$domain,$username,$section) = split(/\//,$area);
3974: } else {
3975: ($role,$username,$domain,$section) = split(/\:/,$entry);
3976: }
1.832 raeburn 3977: if (ref($roledoms) eq 'ARRAY') {
3978: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3979: next;
3980: }
3981: }
3982: if (ref($roles) eq 'ARRAY') {
3983: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3984: if ($role =~ /^cr\//) {
3985: if (!grep(/^cr$/,@{$roles})) {
3986: next;
3987: }
1.1104 raeburn 3988: } elsif ($role =~ /^gr\//) {
3989: if (!grep(/^gr$/,@{$roles})) {
3990: next;
3991: }
1.922 raeburn 3992: } else {
3993: next;
3994: }
1.832 raeburn 3995: }
1.867 raeburn 3996: }
1.937 raeburn 3997: if ($hidepriv) {
1.999 raeburn 3998: if ($context eq 'userroles') {
3999: if ((&privileged($username,$domain)) &&
4000: (!$nothide{$username.':'.$domain})) {
4001: next;
4002: }
4003: } else {
4004: unless (ref($privileged{$domain}) eq 'HASH') {
4005: my %dompersonnel =
4006: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
4007: $privileged{$domain} = {};
4008: if (keys(%dompersonnel)) {
4009: foreach my $server (keys(%dompersonnel)) {
4010: if (ref($dompersonnel{$server}) eq 'HASH') {
4011: foreach my $user (keys(%{$dompersonnel{$server}})) {
4012: my ($trole,$uname,$udom) = split(/:/,$user);
4013: $privileged{$udom}{$uname} = $trole;
4014: }
4015: }
4016: }
4017: }
4018: }
4019: if (exists($privileged{$domain}{$username})) {
4020: if (!$nothide{$username.':'.$domain}) {
4021: next;
4022: }
4023: }
1.937 raeburn 4024: }
4025: }
1.933 raeburn 4026: if ($withsec) {
4027: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4028: $tstart.':'.$tend;
4029: } else {
4030: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4031: }
1.832 raeburn 4032: }
1.373 www 4033: return %returnhash;
1.399 www 4034: }
4035:
4036: # ----------------------------------------------------- Frontpage Announcements
4037: #
4038: #
4039:
4040: sub postannounce {
4041: my ($server,$text)=@_;
1.844 albertel 4042: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4043: unless ($text=~/\w/) { $text=''; }
4044: return &reply('setannounce:'.&escape($text),$server);
4045: }
4046:
4047: sub getannounce {
1.448 albertel 4048:
4049: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4050: my $announcement='';
1.800 albertel 4051: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4052: close($fh);
1.399 www 4053: if ($announcement=~/\w/) {
4054: return
4055: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4056: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4057: } else {
4058: return '';
4059: }
4060: } else {
4061: return '';
4062: }
1.351 www 4063: }
1.353 www 4064:
4065: # ---------------------------------------------------------- Course ID routines
4066: # Deal with domain's nohist_courseid.db files
4067: #
4068:
4069: sub courseidput {
1.921 raeburn 4070: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4071: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4072: my $outcome;
4073: if ($caller eq 'timeonly') {
4074: my $cids = '';
4075: foreach my $item (keys(%$storehash)) {
4076: $cids.=&escape($item).'&';
4077: }
4078: $cids=~s/\&$//;
4079: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4080: $coursehome);
4081: } else {
4082: my $items = '';
4083: foreach my $item (keys(%$storehash)) {
4084: $items.= &escape($item).'='.
4085: &freeze_escape($$storehash{$item}).'&';
4086: }
4087: $items=~s/\&$//;
4088: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4089: $coursehome);
1.918 raeburn 4090: }
4091: if ($outcome eq 'unknown_cmd') {
4092: my $what;
4093: foreach my $cid (keys(%$storehash)) {
4094: $what .= &escape($cid).'=';
1.921 raeburn 4095: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4096: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4097: }
4098: $what =~ s/\:$/&/;
4099: }
4100: $what =~ s/\&$//;
4101: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4102: } else {
4103: return $outcome;
4104: }
1.353 www 4105: }
4106:
4107: sub courseiddump {
1.921 raeburn 4108: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4109: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4110: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 4111: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 4112: my $as_hash = 1;
4113: my %returnhash;
4114: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4115: my %libserv = &all_library();
4116: foreach my $tryserver (keys(%libserv)) {
4117: if ( ( $hostidflag == 1
4118: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4119: || (!defined($hostidflag)) ) {
4120:
1.918 raeburn 4121: if (($domfilter eq '') ||
4122: (&host_domain($tryserver) eq $domfilter)) {
4123: my $rep =
4124: &reply('courseiddump:'.&host_domain($tryserver).':'.
4125: $sincefilter.':'.&escape($descfilter).':'.
4126: &escape($instcodefilter).':'.&escape($ownerfilter).
4127: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 4128: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 4129: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 4130: $showhidden.':'.$caller.':'.&escape($cloner).':'.
1.1029 raeburn 4131: &escape($cc_clone).':'.$cloneonly.':'.
4132: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1071 raeburn 4133: &escape($creationcontext).':'.$domcloner,
4134: $tryserver);
1.918 raeburn 4135: my @pairs=split(/\&/,$rep);
4136: foreach my $item (@pairs) {
4137: my ($key,$value)=split(/\=/,$item,2);
4138: $key = &unescape($key);
4139: next if ($key =~ /^error: 2 /);
4140: my $result = &thaw_unescape($value);
4141: if (ref($result) eq 'HASH') {
4142: $returnhash{$key}=$result;
4143: } else {
1.921 raeburn 4144: my @responses = split(/:/,$value);
4145: my @items = ('description','inst_code','owner','type');
1.918 raeburn 4146: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 4147: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 4148: }
1.1008 raeburn 4149: }
1.353 www 4150: }
4151: }
4152: }
4153: }
4154: return %returnhash;
4155: }
4156:
1.1055 raeburn 4157: sub courselastaccess {
4158: my ($cdom,$cnum,$hostidref) = @_;
4159: my %returnhash;
4160: if ($cdom && $cnum) {
4161: my $chome = &homeserver($cnum,$cdom);
4162: if ($chome ne 'no_host') {
4163: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
4164: &extract_lastaccess(\%returnhash,$rep);
4165: }
4166: } else {
4167: if (!$cdom) { $cdom=''; }
4168: my %libserv = &all_library();
4169: foreach my $tryserver (keys(%libserv)) {
4170: if (ref($hostidref) eq 'ARRAY') {
4171: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
4172: }
4173: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
4174: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
4175: &extract_lastaccess(\%returnhash,$rep);
4176: }
4177: }
4178: }
4179: return %returnhash;
4180: }
4181:
4182: sub extract_lastaccess {
4183: my ($returnhash,$rep) = @_;
4184: if (ref($returnhash) eq 'HASH') {
4185: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
4186: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
4187: $rep eq '') {
4188: my @pairs=split(/\&/,$rep);
4189: foreach my $item (@pairs) {
4190: my ($key,$value)=split(/\=/,$item,2);
4191: $key = &unescape($key);
4192: next if ($key =~ /^error: 2 /);
4193: $returnhash->{$key} = &thaw_unescape($value);
4194: }
4195: }
4196: }
4197: return;
4198: }
4199:
1.658 raeburn 4200: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 4201:
4202: sub dcmailput {
1.685 raeburn 4203: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 4204: my $status = &Apache::lonnet::critical(
1.740 www 4205: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
4206: &escape($message),$server);
1.662 raeburn 4207: return $status;
4208: }
4209:
1.658 raeburn 4210: sub dcmaildump {
4211: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 4212: my %returnhash=();
1.846 albertel 4213:
4214: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 4215: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
4216: &escape($enddate).':';
4217: my @esc_senders=map { &escape($_)} @$senders;
4218: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 4219: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 4220: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 4221: if (($key) && ($value)) {
4222: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 4223: }
4224: }
4225: }
4226: return %returnhash;
4227: }
1.662 raeburn 4228: # ---------------------------------------------------------- Domain roles
4229:
4230: sub get_domain_roles {
4231: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 4232: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 4233: $startdate = '.';
4234: }
1.1018 raeburn 4235: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 4236: $enddate = '.';
4237: }
1.922 raeburn 4238: my $rolelist;
4239: if (ref($roles) eq 'ARRAY') {
4240: $rolelist = join(':',@{$roles});
4241: }
1.662 raeburn 4242: my %personnel = ();
1.841 albertel 4243:
4244: my %servers = &get_servers($dom,'library');
4245: foreach my $tryserver (keys(%servers)) {
4246: %{$personnel{$tryserver}}=();
4247: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
4248: &escape($startdate).':'.
4249: &escape($enddate).':'.
4250: &escape($rolelist), $tryserver))) {
4251: my ($key,$value) = split(/\=/,$line,2);
4252: if (($key) && ($value)) {
4253: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
4254: }
4255: }
1.662 raeburn 4256: }
4257: return %personnel;
4258: }
1.658 raeburn 4259:
1.1057 www 4260: # ----------------------------------------------------------- Interval timing
1.149 www 4261:
1.1153 www 4262: {
4263: # Caches needed for speedup of navmaps
4264: # We don't want to cache this for very long at all (5 seconds at most)
4265: #
4266: # The user for whom we cache
4267: my $cachedkey='';
4268: # The cached times for this user
4269: my %cachedtimes=();
4270: # When this was last done
4271: my $cachedtime=();
4272:
4273: sub load_all_first_access {
1.1154 raeburn 4274: my ($uname,$udom)=@_;
1.1156 www 4275: if (($cachedkey eq $uname.':'.$udom) &&
1.1172.2.2 raeburn 4276: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4277: return;
4278: }
4279: $cachedtime=time;
4280: $cachedkey=$uname.':'.$udom;
4281: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4282: }
4283:
1.504 albertel 4284: sub get_first_access {
1.1162 raeburn 4285: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4286: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4287: if ($argsymb) { $symb=$argsymb; }
4288: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4289: if ($argmap) { $map = $argmap; }
1.926 albertel 4290: if ($type eq 'course') {
4291: $res='course';
4292: } elsif ($type eq 'map') {
1.588 albertel 4293: $res=&symbread($map);
4294: } else {
4295: $res=$symb;
4296: }
1.1153 www 4297: &load_all_first_access($uname,$udom);
4298: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4299: }
4300:
4301: sub set_first_access {
1.1162 raeburn 4302: my ($type,$interval)=@_;
1.790 albertel 4303: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4304: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4305: if ($type eq 'course') {
4306: $res='course';
4307: } elsif ($type eq 'map') {
1.588 albertel 4308: $res=&symbread($map);
4309: } else {
4310: $res=$symb;
4311: }
1.1153 www 4312: $cachedkey='';
1.1162 raeburn 4313: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4314: if (!$firstaccess) {
1.1162 raeburn 4315: my $start = time;
4316: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4317: $udom,$uname);
4318: if ($putres eq 'ok') {
4319: &put('timerinterval',{"$courseid\0$res"=>$interval},
4320: $udom,$uname);
4321: &appenv(
4322: {
4323: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4324: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4325: }
4326: );
4327: }
4328: return $putres;
1.505 albertel 4329: }
4330: return 'already_set';
1.504 albertel 4331: }
1.1153 www 4332: }
1.110 www 4333: # --------------------------------------------- Set Expire Date for Spreadsheet
4334:
4335: sub expirespread {
4336: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 4337: my $cid=$env{'request.course.id'};
1.110 www 4338: if ($cid) {
4339: my $now=time;
4340: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 4341: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
4342: $env{'course.'.$cid.'.num'}.
1.110 www 4343: ':nohist_expirationdates:'.
4344: &escape($key).'='.$now,
1.620 albertel 4345: $env{'course.'.$cid.'.home'})
1.110 www 4346: }
4347: return 'ok';
1.14 www 4348: }
4349:
1.109 www 4350: # ----------------------------------------------------- Devalidate Spreadsheets
4351:
4352: sub devalidate {
1.325 www 4353: my ($symb,$uname,$udom)=@_;
1.620 albertel 4354: my $cid=$env{'request.course.id'};
1.109 www 4355: if ($cid) {
1.391 matthew 4356: # delete the stored spreadsheets for
4357: # - the student level sheet of this user in course's homespace
4358: # - the assessment level sheet for this resource
4359: # for this user in user's homespace
1.553 albertel 4360: # - current conditional state info
1.325 www 4361: my $key=$uname.':'.$udom.':';
1.109 www 4362: my $status=
1.299 matthew 4363: &del('nohist_calculatedsheets',
1.391 matthew 4364: [$key.'studentcalc:'],
1.620 albertel 4365: $env{'course.'.$cid.'.domain'},
4366: $env{'course.'.$cid.'.num'})
1.133 albertel 4367: .' '.
4368: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 4369: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 4370: unless ($status eq 'ok ok') {
4371: &logthis('Could not devalidate spreadsheet '.
1.325 www 4372: $uname.' at '.$udom.' for '.
1.109 www 4373: $symb.': '.$status);
1.133 albertel 4374: }
1.553 albertel 4375: &delenv('user.state.'.$cid);
1.109 www 4376: }
4377: }
4378:
1.265 albertel 4379: sub get_scalar {
4380: my ($string,$end) = @_;
4381: my $value;
4382: if ($$string =~ s/^([^&]*?)($end)/$2/) {
4383: $value = $1;
4384: } elsif ($$string =~ s/^([^&]*?)&//) {
4385: $value = $1;
4386: }
4387: return &unescape($value);
4388: }
4389:
4390: sub array2str {
4391: my (@array) = @_;
4392: my $result=&arrayref2str(\@array);
4393: $result=~s/^__ARRAY_REF__//;
4394: $result=~s/__END_ARRAY_REF__$//;
4395: return $result;
4396: }
4397:
1.204 albertel 4398: sub arrayref2str {
4399: my ($arrayref) = @_;
1.265 albertel 4400: my $result='__ARRAY_REF__';
1.204 albertel 4401: foreach my $elem (@$arrayref) {
1.265 albertel 4402: if(ref($elem) eq 'ARRAY') {
4403: $result.=&arrayref2str($elem).'&';
4404: } elsif(ref($elem) eq 'HASH') {
4405: $result.=&hashref2str($elem).'&';
4406: } elsif(ref($elem)) {
4407: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 4408: } else {
4409: $result.=&escape($elem).'&';
4410: }
4411: }
4412: $result=~s/\&$//;
1.265 albertel 4413: $result .= '__END_ARRAY_REF__';
1.204 albertel 4414: return $result;
4415: }
4416:
1.168 albertel 4417: sub hash2str {
1.204 albertel 4418: my (%hash) = @_;
4419: my $result=&hashref2str(\%hash);
1.265 albertel 4420: $result=~s/^__HASH_REF__//;
4421: $result=~s/__END_HASH_REF__$//;
1.204 albertel 4422: return $result;
4423: }
4424:
4425: sub hashref2str {
4426: my ($hashref)=@_;
1.265 albertel 4427: my $result='__HASH_REF__';
1.800 albertel 4428: foreach my $key (sort(keys(%$hashref))) {
4429: if (ref($key) eq 'ARRAY') {
4430: $result.=&arrayref2str($key).'=';
4431: } elsif (ref($key) eq 'HASH') {
4432: $result.=&hashref2str($key).'=';
4433: } elsif (ref($key)) {
1.265 albertel 4434: $result.='=';
1.800 albertel 4435: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 4436: } else {
1.1132 raeburn 4437: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 4438: }
4439:
1.800 albertel 4440: if(ref($hashref->{$key}) eq 'ARRAY') {
4441: $result.=&arrayref2str($hashref->{$key}).'&';
4442: } elsif(ref($hashref->{$key}) eq 'HASH') {
4443: $result.=&hashref2str($hashref->{$key}).'&';
4444: } elsif(ref($hashref->{$key})) {
1.265 albertel 4445: $result.='&';
1.800 albertel 4446: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 4447: } else {
1.800 albertel 4448: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 4449: }
4450: }
1.168 albertel 4451: $result=~s/\&$//;
1.265 albertel 4452: $result .= '__END_HASH_REF__';
1.168 albertel 4453: return $result;
4454: }
4455:
4456: sub str2hash {
1.265 albertel 4457: my ($string)=@_;
4458: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
4459: return %$hash;
4460: }
4461:
4462: sub str2hashref {
1.168 albertel 4463: my ($string) = @_;
1.265 albertel 4464:
4465: my %hash;
4466:
4467: if($string !~ /^__HASH_REF__/) {
4468: if (! ($string eq '' || !defined($string))) {
4469: $hash{'error'}='Not hash reference';
4470: }
4471: return (\%hash, $string);
4472: }
4473:
4474: $string =~ s/^__HASH_REF__//;
4475:
4476: while($string !~ /^__END_HASH_REF__/) {
4477: #key
4478: my $key='';
4479: if($string =~ /^__HASH_REF__/) {
4480: ($key, $string)=&str2hashref($string);
4481: if(defined($key->{'error'})) {
4482: $hash{'error'}='Bad data';
4483: return (\%hash, $string);
4484: }
4485: } elsif($string =~ /^__ARRAY_REF__/) {
4486: ($key, $string)=&str2arrayref($string);
4487: if($key->[0] eq 'Array reference error') {
4488: $hash{'error'}='Bad data';
4489: return (\%hash, $string);
4490: }
4491: } else {
4492: $string =~ s/^(.*?)=//;
1.267 albertel 4493: $key=&unescape($1);
1.265 albertel 4494: }
4495: $string =~ s/^=//;
4496:
4497: #value
4498: my $value='';
4499: if($string =~ /^__HASH_REF__/) {
4500: ($value, $string)=&str2hashref($string);
4501: if(defined($value->{'error'})) {
4502: $hash{'error'}='Bad data';
4503: return (\%hash, $string);
4504: }
4505: } elsif($string =~ /^__ARRAY_REF__/) {
4506: ($value, $string)=&str2arrayref($string);
4507: if($value->[0] eq 'Array reference error') {
4508: $hash{'error'}='Bad data';
4509: return (\%hash, $string);
4510: }
4511: } else {
4512: $value=&get_scalar(\$string,'__END_HASH_REF__');
4513: }
4514: $string =~ s/^&//;
4515:
4516: $hash{$key}=$value;
1.204 albertel 4517: }
1.265 albertel 4518:
4519: $string =~ s/^__END_HASH_REF__//;
4520:
4521: return (\%hash, $string);
1.204 albertel 4522: }
4523:
4524: sub str2array {
1.265 albertel 4525: my ($string)=@_;
4526: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
4527: return @$array;
4528: }
4529:
4530: sub str2arrayref {
1.204 albertel 4531: my ($string) = @_;
1.265 albertel 4532: my @array;
4533:
4534: if($string !~ /^__ARRAY_REF__/) {
4535: if (! ($string eq '' || !defined($string))) {
4536: $array[0]='Array reference error';
4537: }
4538: return (\@array, $string);
4539: }
4540:
4541: $string =~ s/^__ARRAY_REF__//;
4542:
4543: while($string !~ /^__END_ARRAY_REF__/) {
4544: my $value='';
4545: if($string =~ /^__HASH_REF__/) {
4546: ($value, $string)=&str2hashref($string);
4547: if(defined($value->{'error'})) {
4548: $array[0] ='Array reference error';
4549: return (\@array, $string);
4550: }
4551: } elsif($string =~ /^__ARRAY_REF__/) {
4552: ($value, $string)=&str2arrayref($string);
4553: if($value->[0] eq 'Array reference error') {
4554: $array[0] ='Array reference error';
4555: return (\@array, $string);
4556: }
4557: } else {
4558: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
4559: }
4560: $string =~ s/^&//;
4561:
4562: push(@array, $value);
1.191 harris41 4563: }
1.265 albertel 4564:
4565: $string =~ s/^__END_ARRAY_REF__//;
4566:
4567: return (\@array, $string);
1.168 albertel 4568: }
4569:
1.167 albertel 4570: # -------------------------------------------------------------------Temp Store
4571:
1.168 albertel 4572: sub tmpreset {
4573: my ($symb,$namespace,$domain,$stuname) = @_;
4574: if (!$symb) {
4575: $symb=&symbread();
1.620 albertel 4576: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4577: }
4578: $symb=escape($symb);
4579:
1.620 albertel 4580: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 4581: $namespace=~s/\//\_/g;
4582: $namespace=~s/\W//g;
4583:
1.620 albertel 4584: if (!$domain) { $domain=$env{'user.domain'}; }
4585: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4586: if ($domain eq 'public' && $stuname eq 'public') {
4587: $stuname=$ENV{'REMOTE_ADDR'};
4588: }
1.1117 foxr 4589: my $path=LONCAPA::tempdir();
1.168 albertel 4590: my %hash;
4591: if (tie(%hash,'GDBM_File',
4592: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4593: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 4594: foreach my $key (keys(%hash)) {
1.180 albertel 4595: if ($key=~ /:$symb/) {
1.168 albertel 4596: delete($hash{$key});
4597: }
4598: }
4599: }
4600: }
4601:
1.167 albertel 4602: sub tmpstore {
1.168 albertel 4603: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4604:
4605: if (!$symb) {
4606: $symb=&symbread();
1.620 albertel 4607: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4608: }
4609: $symb=escape($symb);
4610:
4611: if (!$namespace) {
4612: # I don't think we would ever want to store this for a course.
4613: # it seems this will only be used if we don't have a course.
1.620 albertel 4614: #$namespace=$env{'request.course.id'};
1.168 albertel 4615: #if (!$namespace) {
1.620 albertel 4616: $namespace=$env{'request.state'};
1.168 albertel 4617: #}
4618: }
4619: $namespace=~s/\//\_/g;
4620: $namespace=~s/\W//g;
1.620 albertel 4621: if (!$domain) { $domain=$env{'user.domain'}; }
4622: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4623: if ($domain eq 'public' && $stuname eq 'public') {
4624: $stuname=$ENV{'REMOTE_ADDR'};
4625: }
1.168 albertel 4626: my $now=time;
4627: my %hash;
1.1117 foxr 4628: my $path=LONCAPA::tempdir();
1.168 albertel 4629: if (tie(%hash,'GDBM_File',
4630: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4631: &GDBM_WRCREAT(),0640)) {
1.168 albertel 4632: $hash{"version:$symb"}++;
4633: my $version=$hash{"version:$symb"};
4634: my $allkeys='';
4635: foreach my $key (keys(%$storehash)) {
4636: $allkeys.=$key.':';
1.591 albertel 4637: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 4638: }
4639: $hash{"$version:$symb:timestamp"}=$now;
4640: $allkeys.='timestamp';
4641: $hash{"$version:keys:$symb"}=$allkeys;
4642: if (untie(%hash)) {
4643: return 'ok';
4644: } else {
4645: return "error:$!";
4646: }
4647: } else {
4648: return "error:$!";
4649: }
4650: }
1.167 albertel 4651:
1.168 albertel 4652: # -----------------------------------------------------------------Temp Restore
1.167 albertel 4653:
1.168 albertel 4654: sub tmprestore {
4655: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 4656:
1.168 albertel 4657: if (!$symb) {
4658: $symb=&symbread();
1.620 albertel 4659: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4660: }
4661: $symb=escape($symb);
4662:
1.620 albertel 4663: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 4664:
1.620 albertel 4665: if (!$domain) { $domain=$env{'user.domain'}; }
4666: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4667: if ($domain eq 'public' && $stuname eq 'public') {
4668: $stuname=$ENV{'REMOTE_ADDR'};
4669: }
1.168 albertel 4670: my %returnhash;
4671: $namespace=~s/\//\_/g;
4672: $namespace=~s/\W//g;
4673: my %hash;
1.1117 foxr 4674: my $path=LONCAPA::tempdir();
1.168 albertel 4675: if (tie(%hash,'GDBM_File',
4676: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4677: &GDBM_READER(),0640)) {
1.168 albertel 4678: my $version=$hash{"version:$symb"};
4679: $returnhash{'version'}=$version;
4680: my $scope;
4681: for ($scope=1;$scope<=$version;$scope++) {
4682: my $vkeys=$hash{"$scope:keys:$symb"};
4683: my @keys=split(/:/,$vkeys);
4684: my $key;
4685: $returnhash{"$scope:keys"}=$vkeys;
4686: foreach $key (@keys) {
1.591 albertel 4687: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
4688: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 4689: }
4690: }
1.168 albertel 4691: if (!(untie(%hash))) {
4692: return "error:$!";
4693: }
4694: } else {
4695: return "error:$!";
4696: }
4697: return %returnhash;
1.167 albertel 4698: }
4699:
1.9 www 4700: # ----------------------------------------------------------------------- Store
4701:
4702: sub store {
1.124 www 4703: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4704: my $home='';
4705:
1.168 albertel 4706: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4707:
1.213 www 4708: $symb=&symbclean($symb);
1.122 albertel 4709: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4710:
1.620 albertel 4711: if (!$domain) { $domain=$env{'user.domain'}; }
4712: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4713:
4714: &devalidate($symb,$stuname,$domain);
1.109 www 4715:
4716: $symb=escape($symb);
1.187 www 4717: if (!$namespace) {
1.620 albertel 4718: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4719: return '';
4720: }
4721: }
1.620 albertel 4722: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4723:
4724: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4725: $$storehash{'host'}=$perlvar{'lonHostID'};
4726:
1.12 www 4727: my $namevalue='';
1.800 albertel 4728: foreach my $key (keys(%$storehash)) {
4729: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4730: }
1.12 www 4731: $namevalue=~s/\&$//;
1.187 www 4732: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 4733: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 4734: }
4735:
1.47 www 4736: # -------------------------------------------------------------- Critical Store
4737:
4738: sub cstore {
1.124 www 4739: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4740: my $home='';
4741:
1.168 albertel 4742: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4743:
1.213 www 4744: $symb=&symbclean($symb);
1.122 albertel 4745: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4746:
1.620 albertel 4747: if (!$domain) { $domain=$env{'user.domain'}; }
4748: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4749:
4750: &devalidate($symb,$stuname,$domain);
1.109 www 4751:
4752: $symb=escape($symb);
1.187 www 4753: if (!$namespace) {
1.620 albertel 4754: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4755: return '';
4756: }
4757: }
1.620 albertel 4758: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4759:
4760: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4761: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 4762:
1.47 www 4763: my $namevalue='';
1.800 albertel 4764: foreach my $key (keys(%$storehash)) {
4765: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4766: }
1.47 www 4767: $namevalue=~s/\&$//;
1.187 www 4768: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4769: return critical
4770: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 4771: }
4772:
1.9 www 4773: # --------------------------------------------------------------------- Restore
4774:
4775: sub restore {
1.124 www 4776: my ($symb,$namespace,$domain,$stuname) = @_;
4777: my $home='';
4778:
1.168 albertel 4779: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4780:
1.122 albertel 4781: if (!$symb) {
4782: unless ($symb=escape(&symbread())) { return ''; }
4783: } else {
1.213 www 4784: $symb=&escape(&symbclean($symb));
1.122 albertel 4785: }
1.188 www 4786: if (!$namespace) {
1.620 albertel 4787: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4788: return '';
4789: }
4790: }
1.620 albertel 4791: if (!$domain) { $domain=$env{'user.domain'}; }
4792: if (!$stuname) { $stuname=$env{'user.name'}; }
4793: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4794: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4795:
1.12 www 4796: my %returnhash=();
1.800 albertel 4797: foreach my $line (split(/\&/,$answer)) {
4798: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4799: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4800: }
1.75 www 4801: my $version;
4802: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4803: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4804: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4805: }
1.75 www 4806: }
1.13 www 4807: return %returnhash;
1.34 www 4808: }
4809:
4810: # ---------------------------------------------------------- Course Description
1.1118 foxr 4811: #
4812: #
1.34 www 4813:
4814: sub coursedescription {
1.731 albertel 4815: my ($courseid,$args)=@_;
1.34 www 4816: $courseid=~s/^\///;
1.49 www 4817: $courseid=~s/\_/\//g;
1.34 www 4818: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4819: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4820: my $normalid=$cdomain.'_'.$cnum;
4821: # need to always cache even if we get errors otherwise we keep
4822: # trying and trying and trying to get the course description.
4823: my %envhash=();
4824: my %returnhash=();
1.731 albertel 4825:
4826: my $expiretime=600;
4827: if ($env{'request.course.id'} eq $normalid) {
4828: $expiretime=120;
4829: }
4830:
4831: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4832: if (!$args->{'freshen_cache'}
4833: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4834: foreach my $key (keys(%env)) {
4835: next if ($key !~ /^\Q$prefix\E(.*)/);
4836: my ($setting) = $1;
4837: $returnhash{$setting} = $env{$key};
4838: }
4839: return %returnhash;
4840: }
4841:
1.1118 foxr 4842: # get the data again
4843:
1.731 albertel 4844: if (!$args->{'one_time'}) {
4845: $envhash{'course.'.$normalid.'.last_cache'}=time;
4846: }
1.811 albertel 4847:
1.34 www 4848: if ($chome ne 'no_host') {
1.302 albertel 4849: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 4850: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 4851: my $username = $env{'user.name'}; # Defult username
4852: if(defined $args->{'user'}) {
4853: $username = $args->{'user'};
4854: }
1.129 albertel 4855: $returnhash{'home'}= $chome;
4856: $returnhash{'domain'} = $cdomain;
4857: $returnhash{'num'} = $cnum;
1.741 raeburn 4858: if (!defined($returnhash{'type'})) {
4859: $returnhash{'type'} = 'Course';
4860: }
1.130 albertel 4861: while (my ($name,$value) = each %returnhash) {
1.53 www 4862: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 4863: }
1.270 www 4864: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 4865: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 4866: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 4867: $envhash{'course.'.$normalid.'.home'}=$chome;
4868: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
4869: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 4870: }
4871: }
1.731 albertel 4872: if (!$args->{'one_time'}) {
1.949 raeburn 4873: &appenv(\%envhash);
1.731 albertel 4874: }
1.302 albertel 4875: return %returnhash;
1.461 www 4876: }
4877:
1.1080 raeburn 4878: sub update_released_required {
4879: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
4880: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
4881: $cid = $env{'request.course.id'};
4882: $cdom = $env{'course.'.$cid.'.domain'};
4883: $cnum = $env{'course.'.$cid.'.num'};
4884: $chome = $env{'course.'.$cid.'.home'};
4885: }
4886: if ($needsrelease) {
4887: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
4888: my $needsupdate;
4889: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
4890: $needsupdate = 1;
4891: } else {
4892: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
4893: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
4894: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
4895: $needsupdate = 1;
4896: }
4897: }
4898: if ($needsupdate) {
4899: my %needshash = (
4900: 'internal.releaserequired' => $needsrelease,
4901: );
4902: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
4903: if ($putresult eq 'ok') {
4904: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
4905: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
4906: if (ref($crsinfo{$cid}) eq 'HASH') {
4907: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
4908: &courseidput($cdom,\%crsinfo,$chome,'notime');
4909: }
4910: }
4911: }
4912: }
4913: return;
4914: }
4915:
1.461 www 4916: # -------------------------------------------------See if a user is privileged
4917:
4918: sub privileged {
4919: my ($username,$domain)=@_;
1.1170 droeschl 4920:
4921: my %rolesdump = &dump("roles", $domain, $username) or return 0;
4922: my $now = time;
4923:
4924: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
4925: my ($trole, $tend, $tstart) = split(/_/, $role);
4926: if (($trole eq 'dc') || ($trole eq 'su')) {
4927: return 1 unless ($tend && $tend < $now)
4928: or ($tstart && $tstart > $now);
4929: }
1.461 www 4930: }
1.1170 droeschl 4931:
1.461 www 4932: return 0;
1.9 www 4933: }
1.1 albertel 4934:
1.103 harris41 4935: # -------------------------------------------------------- Get user privileges
1.11 www 4936:
4937: sub rolesinit {
1.1169 droeschl 4938: my ($domain, $username) = @_;
4939: my %userroles = ('user.login.time' => time);
4940: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
4941:
4942: # firstaccess and timerinterval are related to timed maps/resources.
4943: # also, blocking can be triggered by an activating timer
4944: # it's saved in the user's %env.
4945: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
4946: my %timerinterval = &dump('timerinterval', $domain, $username);
4947: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
4948: %timerintchk, %timerintenv);
4949:
1.1162 raeburn 4950: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 4951: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 4952: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
4953: }
1.1169 droeschl 4954:
1.1162 raeburn 4955: foreach my $key (keys(%timerinterval)) {
4956: my ($cid,$rest) = split(/\0/,$key);
4957: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
4958: }
1.1169 droeschl 4959:
1.11 www 4960: my %allroles=();
1.1162 raeburn 4961: my %allgroups=();
1.11 www 4962:
1.1169 droeschl 4963: for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
4964: my $role = $rolesdump{$area};
4965: $area =~ s/\_\w\w$//;
4966:
4967: my ($trole, $tend, $tstart, $group_privs);
4968:
4969: if ($role =~ /^cr/) {
4970: # Custom role, defined by a user
4971: # e.g., user.role.cr/msu/smith/mynewrole
4972: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
4973: $trole = $1;
4974: ($tend, $tstart) = split('_', $2);
4975: } else {
4976: $trole = $role;
4977: }
4978: } elsif ($role =~ m|^gr/|) {
4979: # Role of member in a group, defined within a course/community
4980: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
4981: ($trole, $tend, $tstart) = split(/_/, $role);
4982: next if $tstart eq '-1';
4983: ($trole, $group_privs) = split(/\//, $trole);
4984: $group_privs = &unescape($group_privs);
4985: } else {
4986: # Just a normal role, defined in roles.tab
4987: ($trole, $tend, $tstart) = split(/_/,$role);
4988: }
4989:
4990: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
4991: $username);
4992: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
4993:
4994: # role expired or not available yet?
4995: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
4996: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
4997:
4998: next if $area eq '' or $trole eq '';
4999:
5000: my $spec = "$trole.$area";
5001: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5002:
5003: if ($trole =~ /^cr\//) {
5004: # Custom role, defined by a user
5005: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5006: } elsif ($trole eq 'gr') {
5007: # Role of a member in a group, defined within a course/community
5008: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5009: next;
5010: } else {
5011: # Normal role, defined in roles.tab
5012: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5013: }
5014:
5015: my $cid = $tdomain.'_'.$trest;
5016: unless ($firstaccchk{$cid}) {
5017: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
5018: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
5019: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
5020: $coursetimerstarts{$cid}{$item};
5021: }
5022: }
5023: $firstaccchk{$cid} = 1;
5024: }
5025: unless ($timerintchk{$cid}) {
5026: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
5027: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
5028: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
5029: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 5030: }
1.12 www 5031: }
1.1169 droeschl 5032: $timerintchk{$cid} = 1;
1.191 harris41 5033: }
1.11 www 5034: }
1.1169 droeschl 5035:
5036: @userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
5037: \%allroles, \%allgroups);
5038: $env{'user.adv'} = $userroles{'user.adv'};
5039:
1.1162 raeburn 5040: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 5041: }
5042:
1.567 raeburn 5043: sub set_arearole {
5044: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
5045: # log the associated role with the area
5046: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 5047: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 5048: }
5049:
5050: sub custom_roleprivs {
5051: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
5052: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
5053: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 5054: if (&hostname($homsvr) ne '') {
1.567 raeburn 5055: my ($rdummy,$roledef)=
5056: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
5057: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
5058: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
5059: if (defined($syspriv)) {
1.1043 raeburn 5060: if ($trest =~ /^$match_community$/) {
5061: $syspriv =~ s/bre\&S//;
5062: }
1.567 raeburn 5063: $$allroles{'cm./'}.=':'.$syspriv;
5064: $$allroles{$spec.'./'}.=':'.$syspriv;
5065: }
5066: if ($tdomain ne '') {
5067: if (defined($dompriv)) {
5068: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
5069: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
5070: }
5071: if (($trest ne '') && (defined($coursepriv))) {
5072: $$allroles{'cm.'.$area}.=':'.$coursepriv;
5073: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
5074: }
5075: }
5076: }
5077: }
5078: }
5079:
1.678 raeburn 5080: sub group_roleprivs {
5081: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
5082: my $access = 1;
5083: my $now = time;
5084: if (($tend!=0) && ($tend<$now)) { $access = 0; }
5085: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
5086: if ($access) {
1.811 albertel 5087: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 5088: $$allgroups{$course}{$group} .=':'.$group_privs;
5089: }
5090: }
1.567 raeburn 5091:
5092: sub standard_roleprivs {
5093: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
5094: if (defined($pr{$trole.':s'})) {
5095: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
5096: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
5097: }
5098: if ($tdomain ne '') {
5099: if (defined($pr{$trole.':d'})) {
5100: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5101: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5102: }
5103: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
5104: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
5105: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
5106: }
5107: }
5108: }
5109:
5110: sub set_userprivs {
1.1064 raeburn 5111: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 5112: my $author=0;
5113: my $adv=0;
1.678 raeburn 5114: my %grouproles = ();
5115: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 5116: my @groupkeys;
1.1000 raeburn 5117: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 5118: push(@groupkeys,$role);
5119: }
5120: if (ref($groups_roles) eq 'HASH') {
5121: foreach my $key (keys(%{$groups_roles})) {
5122: unless (grep(/^\Q$key\E$/,@groupkeys)) {
5123: push(@groupkeys,$key);
5124: }
5125: }
5126: }
5127: if (@groupkeys > 0) {
5128: foreach my $role (@groupkeys) {
5129: my ($trole,$area,$sec,$extendedarea);
5130: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
5131: $trole = $1;
5132: $area = $2;
5133: $sec = $3;
5134: $extendedarea = $area.$sec;
5135: if (exists($$allgroups{$area})) {
5136: foreach my $group (keys(%{$$allgroups{$area}})) {
5137: my $spec = $trole.'.'.$extendedarea;
5138: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 5139: $$allgroups{$area}{$group};
1.1064 raeburn 5140: }
1.678 raeburn 5141: }
5142: }
5143: }
5144: }
5145: }
1.800 albertel 5146: foreach my $group (keys(%grouproles)) {
5147: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 5148: }
1.800 albertel 5149: foreach my $role (keys(%{$allroles})) {
5150: my %thesepriv;
1.941 raeburn 5151: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 5152: foreach my $item (split(/:/,$$allroles{$role})) {
5153: if ($item ne '') {
5154: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 5155: if ($restrictions eq '') {
5156: $thesepriv{$privilege}='F';
5157: } elsif ($thesepriv{$privilege} ne 'F') {
5158: $thesepriv{$privilege}.=$restrictions;
5159: }
5160: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
5161: }
5162: }
5163: my $thesestr='';
1.1104 raeburn 5164: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 5165: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
5166: }
5167: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 5168: }
5169: return ($author,$adv);
5170: }
5171:
1.994 raeburn 5172: sub role_status {
1.1104 raeburn 5173: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 5174: my @pwhere = ();
5175: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
5176: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
5177: unless (!defined($$role) || $$role eq '') {
5178: $$where=join('.',@pwhere);
5179: $$trolecode=$$role.'.'.$$where;
5180: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
5181: $$tstatus='is';
1.1104 raeburn 5182: if ($$tstart && $$tstart>$update) {
1.994 raeburn 5183: $$tstatus='future';
1.1034 raeburn 5184: if ($$tstart<$now) {
5185: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 5186: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 5187: my (%allroles,%allgroups,$group_privs,
5188: %groups_roles,@rolecodes);
1.1002 raeburn 5189: my %userroles = (
5190: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
5191: );
1.1064 raeburn 5192: @rolecodes = ('cm');
1.1002 raeburn 5193: my $spec=$$role.'.'.$$where;
5194: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
5195: if ($$role =~ /^cr\//) {
5196: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 5197: push(@rolecodes,'cr');
1.1002 raeburn 5198: } elsif ($$role eq 'gr') {
1.1064 raeburn 5199: push(@rolecodes,$$role);
1.1002 raeburn 5200: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
5201: $env{'user.name'});
1.1064 raeburn 5202: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 5203: (undef,my $group_privs) = split(/\//,$trole);
5204: $group_privs = &unescape($group_privs);
5205: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 5206: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 5207: &get_groups_roles($tdomain,$trest,
5208: \%course_roles,\@rolecodes,
5209: \%groups_roles);
1.1002 raeburn 5210: } else {
1.1064 raeburn 5211: push(@rolecodes,$$role);
1.1002 raeburn 5212: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
5213: }
1.1064 raeburn 5214: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
5215: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 5216: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
5217: }
5218: }
1.1034 raeburn 5219: $$tstatus = 'is';
1.1002 raeburn 5220: }
1.994 raeburn 5221: }
5222: if ($$tend) {
1.1104 raeburn 5223: if ($$tend<$update) {
1.994 raeburn 5224: $$tstatus='expired';
5225: } elsif ($$tend<$now) {
5226: $$tstatus='will_not';
5227: }
5228: }
5229: }
5230: }
5231: }
5232:
1.1104 raeburn 5233: sub get_groups_roles {
5234: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
5235: return unless((ref($cdom_courseroles) eq 'HASH') &&
5236: (ref($rolecodes) eq 'ARRAY') &&
5237: (ref($groups_roles) eq 'HASH'));
5238: if (keys(%{$cdom_courseroles}) > 0) {
5239: my ($cnum) = ($rest =~ /^($match_courseid)/);
5240: if ($cdom ne '' && $cnum ne '') {
5241: foreach my $key (keys(%{$cdom_courseroles})) {
5242: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
5243: my $crsrole = $1;
5244: my $crssec = $2;
5245: if ($crsrole =~ /^cr/) {
5246: unless (grep(/^cr$/,@{$rolecodes})) {
5247: push(@{$rolecodes},'cr');
5248: }
5249: } else {
5250: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
5251: push(@{$rolecodes},$crsrole);
5252: }
5253: }
5254: my $rolekey = "$crsrole./$cdom/$cnum";
5255: if ($crssec ne '') {
5256: $rolekey .= "/$crssec";
5257: }
5258: $rolekey .= './';
5259: $groups_roles->{$rolekey} = $rolecodes;
5260: }
5261: }
5262: }
5263: }
5264: return;
5265: }
5266:
5267: sub delete_env_groupprivs {
5268: my ($where,$courseroles,$possroles) = @_;
5269: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
5270: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
5271: unless (ref($courseroles->{$udom}) eq 'HASH') {
5272: %{$courseroles->{$udom}} =
5273: &get_my_roles('','','userroles',['active'],
5274: $possroles,[$udom],1);
5275: }
5276: if (ref($courseroles->{$udom}) eq 'HASH') {
5277: foreach my $item (keys(%{$courseroles->{$udom}})) {
5278: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
5279: my $area = '/'.$cdom.'/'.$cnum;
5280: my $privkey = "user.priv.$crsrole.$area";
5281: if ($crssec ne '') {
5282: $privkey .= '/'.$crssec;
5283: }
5284: $privkey .= ".$area/$group";
5285: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
5286: }
5287: }
5288: return;
5289: }
5290:
1.994 raeburn 5291: sub check_adhoc_privs {
1.1104 raeburn 5292: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 5293: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1172.2.9 raeburn 5294: my $setprivs;
1.994 raeburn 5295: if ($env{$cckey}) {
5296: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 5297: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 5298: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 5299: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1172.2.9 raeburn 5300: $setprivs = 1;
1.994 raeburn 5301: }
5302: } else {
1.1088 raeburn 5303: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1172.2.9 raeburn 5304: $setprivs = 1;
1.994 raeburn 5305: }
1.1172.2.9 raeburn 5306: return $setprivs;
1.994 raeburn 5307: }
5308:
5309: sub set_adhoc_privileges {
5310: # role can be cc or ca
1.1088 raeburn 5311: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 5312: my $area = '/'.$dcdom.'/'.$pickedcourse;
5313: my $spec = $role.'.'.$area;
5314: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
5315: $env{'user.name'});
5316: my %ccrole = ();
5317: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
5318: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
5319: &appenv(\%userroles,[$role,'cm']);
5320: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 5321: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
5322: &appenv( {'request.role' => $spec,
5323: 'request.role.domain' => $dcdom,
5324: 'request.course.sec' => ''
5325: }
5326: );
5327: my $tadv=0;
5328: if (&allowed('adv') eq 'F') { $tadv=1; }
5329: &appenv({'request.role.adv' => $tadv});
5330: }
1.994 raeburn 5331: }
5332:
1.12 www 5333: # --------------------------------------------------------------- get interface
5334:
5335: sub get {
1.131 albertel 5336: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5337: my $items='';
1.800 albertel 5338: foreach my $item (@$storearr) {
5339: $items.=&escape($item).'&';
1.191 harris41 5340: }
1.12 www 5341: $items=~s/\&$//;
1.620 albertel 5342: if (!$udomain) { $udomain=$env{'user.domain'}; }
5343: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 5344: my $uhome=&homeserver($uname,$udomain);
5345:
1.133 albertel 5346: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5347: my @pairs=split(/\&/,$rep);
1.273 albertel 5348: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
5349: return @pairs;
5350: }
1.15 www 5351: my %returnhash=();
1.42 www 5352: my $i=0;
1.800 albertel 5353: foreach my $item (@$storearr) {
5354: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5355: $i++;
1.191 harris41 5356: }
1.15 www 5357: return %returnhash;
1.27 www 5358: }
5359:
5360: # --------------------------------------------------------------- del interface
5361:
5362: sub del {
1.133 albertel 5363: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 5364: my $items='';
1.800 albertel 5365: foreach my $item (@$storearr) {
5366: $items.=&escape($item).'&';
1.191 harris41 5367: }
1.984 neumanie 5368:
1.27 www 5369: $items=~s/\&$//;
1.620 albertel 5370: if (!$udomain) { $udomain=$env{'user.domain'}; }
5371: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5372: my $uhome=&homeserver($uname,$udomain);
5373: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5374: }
5375:
5376: # -------------------------------------------------------------- dump interface
5377:
5378: sub dump {
1.1166 raeburn 5379: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.755 albertel 5380: if (!$udomain) { $udomain=$env{'user.domain'}; }
5381: if (!$uname) { $uname=$env{'user.name'}; }
5382: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 5383:
1.755 albertel 5384: if ($regexp) {
5385: $regexp=&escape($regexp);
5386: } else {
5387: $regexp='.';
5388: }
1.1166 raeburn 5389: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 5390: my @pairs=split(/\&/,$rep);
5391: my %returnhash=();
1.1098 foxr 5392: if (!($rep =~ /^error/ )) {
5393: foreach my $item (@pairs) {
5394: my ($key,$value)=split(/=/,$item,2);
5395: $key = &unescape($key);
5396: next if ($key =~ /^error: 2 /);
5397: $returnhash{$key}=&thaw_unescape($value);
5398: }
1.755 albertel 5399: }
5400: return %returnhash;
1.407 www 5401: }
5402:
1.1098 foxr 5403:
1.717 albertel 5404: # --------------------------------------------------------- dumpstore interface
5405:
5406: sub dumpstore {
5407: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 5408: if (!$udomain) { $udomain=$env{'user.domain'}; }
5409: if (!$uname) { $uname=$env{'user.name'}; }
5410: my $uhome=&homeserver($uname,$udomain);
5411: if ($regexp) {
5412: $regexp=&escape($regexp);
5413: } else {
5414: $regexp='.';
5415: }
5416: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
5417: my @pairs=split(/\&/,$rep);
5418: my %returnhash=();
5419: foreach my $item (@pairs) {
5420: my ($key,$value)=split(/=/,$item,2);
5421: next if ($key =~ /^error: 2 /);
5422: $returnhash{$key}=&thaw_unescape($value);
5423: }
5424: return %returnhash;
1.717 albertel 5425: }
5426:
1.407 www 5427: # -------------------------------------------------------------- keys interface
5428:
5429: sub getkeys {
5430: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 5431: if (!$udomain) { $udomain=$env{'user.domain'}; }
5432: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 5433: my $uhome=&homeserver($uname,$udomain);
5434: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
5435: my @keyarray=();
1.800 albertel 5436: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 5437: next if ($key =~ /^error: 2 /);
1.800 albertel 5438: push(@keyarray,&unescape($key));
1.407 www 5439: }
5440: return @keyarray;
1.318 matthew 5441: }
5442:
1.319 matthew 5443: # --------------------------------------------------------------- currentdump
5444: sub currentdump {
1.328 matthew 5445: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 5446: $courseid = $env{'request.course.id'} if (! defined($courseid));
5447: $sdom = $env{'user.domain'} if (! defined($sdom));
5448: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 5449: my $uhome = &homeserver($sname,$sdom);
5450: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 5451: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 5452: #
1.318 matthew 5453: my %returnhash=();
1.319 matthew 5454: #
5455: if ($rep eq "unknown_cmd") {
5456: # an old lond will not know currentdump
5457: # Do a dump and make it look like a currentdump
1.822 albertel 5458: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 5459: return if ($tmp[0] =~ /^(error:|no_such_host)/);
5460: my %hash = @tmp;
5461: @tmp=();
1.424 matthew 5462: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 5463: } else {
5464: my @pairs=split(/\&/,$rep);
1.800 albertel 5465: foreach my $pair (@pairs) {
5466: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 5467: my ($symb,$param) = split(/:/,$key);
5468: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 5469: &thaw_unescape($value);
1.319 matthew 5470: }
1.191 harris41 5471: }
1.12 www 5472: return %returnhash;
1.424 matthew 5473: }
5474:
5475: sub convert_dump_to_currentdump{
5476: my %hash = %{shift()};
5477: my %returnhash;
5478: # Code ripped from lond, essentially. The only difference
5479: # here is the unescaping done by lonnet::dump(). Conceivably
5480: # we might run in to problems with parameter names =~ /^v\./
5481: while (my ($key,$value) = each(%hash)) {
5482: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 5483: $symb = &unescape($symb);
5484: $param = &unescape($param);
1.424 matthew 5485: next if ($v eq 'version' || $symb eq 'keys');
5486: next if (exists($returnhash{$symb}) &&
5487: exists($returnhash{$symb}->{$param}) &&
5488: $returnhash{$symb}->{'v.'.$param} > $v);
5489: $returnhash{$symb}->{$param}=$value;
5490: $returnhash{$symb}->{'v.'.$param}=$v;
5491: }
5492: #
5493: # Remove all of the keys in the hashes which keep track of
5494: # the version of the parameter.
5495: while (my ($symb,$param_hash) = each(%returnhash)) {
5496: # use a foreach because we are going to delete from the hash.
5497: foreach my $key (keys(%$param_hash)) {
5498: delete($param_hash->{$key}) if ($key =~ /^v\./);
5499: }
5500: }
5501: return \%returnhash;
1.12 www 5502: }
5503:
1.627 albertel 5504: # ------------------------------------------------------ critical inc interface
5505:
5506: sub cinc {
5507: return &inc(@_,'critical');
5508: }
5509:
1.449 matthew 5510: # --------------------------------------------------------------- inc interface
5511:
5512: sub inc {
1.627 albertel 5513: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 5514: if (!$udomain) { $udomain=$env{'user.domain'}; }
5515: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 5516: my $uhome=&homeserver($uname,$udomain);
5517: my $items='';
5518: if (! ref($store)) {
5519: # got a single value, so use that instead
5520: $items = &escape($store).'=&';
5521: } elsif (ref($store) eq 'SCALAR') {
5522: $items = &escape($$store).'=&';
5523: } elsif (ref($store) eq 'ARRAY') {
5524: $items = join('=&',map {&escape($_);} @{$store});
5525: } elsif (ref($store) eq 'HASH') {
5526: while (my($key,$value) = each(%{$store})) {
5527: $items.= &escape($key).'='.&escape($value).'&';
5528: }
5529: }
5530: $items=~s/\&$//;
1.627 albertel 5531: if ($critical) {
5532: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
5533: } else {
5534: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
5535: }
1.449 matthew 5536: }
5537:
1.12 www 5538: # --------------------------------------------------------------- put interface
5539:
5540: sub put {
1.134 albertel 5541: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5542: if (!$udomain) { $udomain=$env{'user.domain'}; }
5543: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5544: my $uhome=&homeserver($uname,$udomain);
1.12 www 5545: my $items='';
1.800 albertel 5546: foreach my $item (keys(%$storehash)) {
5547: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5548: }
1.12 www 5549: $items=~s/\&$//;
1.134 albertel 5550: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 5551: }
5552:
1.631 albertel 5553: # ------------------------------------------------------------ newput interface
5554:
5555: sub newput {
5556: my ($namespace,$storehash,$udomain,$uname)=@_;
5557: if (!$udomain) { $udomain=$env{'user.domain'}; }
5558: if (!$uname) { $uname=$env{'user.name'}; }
5559: my $uhome=&homeserver($uname,$udomain);
5560: my $items='';
5561: foreach my $key (keys(%$storehash)) {
5562: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
5563: }
5564: $items=~s/\&$//;
5565: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
5566: }
5567:
5568: # --------------------------------------------------------- putstore interface
5569:
1.524 raeburn 5570: sub putstore {
1.715 albertel 5571: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 5572: if (!$udomain) { $udomain=$env{'user.domain'}; }
5573: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 5574: my $uhome=&homeserver($uname,$udomain);
5575: my $items='';
1.715 albertel 5576: foreach my $key (keys(%$storehash)) {
5577: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 5578: }
1.715 albertel 5579: $items=~s/\&$//;
1.716 albertel 5580: my $esc_symb=&escape($symb);
5581: my $esc_v=&escape($version);
1.715 albertel 5582: my $reply =
1.716 albertel 5583: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 5584: $uhome);
5585: if ($reply eq 'unknown_cmd') {
1.716 albertel 5586: # gfall back to way things use to be done
1.715 albertel 5587: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
5588: $uname);
1.524 raeburn 5589: }
1.715 albertel 5590: return $reply;
5591: }
5592:
5593: sub old_putstore {
1.716 albertel 5594: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
5595: if (!$udomain) { $udomain=$env{'user.domain'}; }
5596: if (!$uname) { $uname=$env{'user.name'}; }
5597: my $uhome=&homeserver($uname,$udomain);
5598: my %newstorehash;
1.800 albertel 5599: foreach my $item (keys(%$storehash)) {
5600: my $key = $version.':'.&escape($symb).':'.$item;
5601: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 5602: }
5603: my $items='';
5604: my %allitems = ();
1.800 albertel 5605: foreach my $item (keys(%newstorehash)) {
5606: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 5607: my $key = $1.':keys:'.$2;
5608: $allitems{$key} .= $3.':';
5609: }
1.800 albertel 5610: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 5611: }
1.800 albertel 5612: foreach my $item (keys(%allitems)) {
5613: $allitems{$item} =~ s/\:$//;
5614: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 5615: }
5616: $items=~s/\&$//;
5617: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 5618: }
5619:
1.47 www 5620: # ------------------------------------------------------ critical put interface
5621:
5622: sub cput {
1.134 albertel 5623: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5624: if (!$udomain) { $udomain=$env{'user.domain'}; }
5625: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5626: my $uhome=&homeserver($uname,$udomain);
1.47 www 5627: my $items='';
1.800 albertel 5628: foreach my $item (keys(%$storehash)) {
5629: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5630: }
1.47 www 5631: $items=~s/\&$//;
1.134 albertel 5632: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5633: }
5634:
5635: # -------------------------------------------------------------- eget interface
5636:
5637: sub eget {
1.133 albertel 5638: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5639: my $items='';
1.800 albertel 5640: foreach my $item (@$storearr) {
5641: $items.=&escape($item).'&';
1.191 harris41 5642: }
1.12 www 5643: $items=~s/\&$//;
1.620 albertel 5644: if (!$udomain) { $udomain=$env{'user.domain'}; }
5645: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5646: my $uhome=&homeserver($uname,$udomain);
5647: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5648: my @pairs=split(/\&/,$rep);
5649: my %returnhash=();
1.42 www 5650: my $i=0;
1.800 albertel 5651: foreach my $item (@$storearr) {
5652: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5653: $i++;
1.191 harris41 5654: }
1.12 www 5655: return %returnhash;
5656: }
5657:
1.667 albertel 5658: # ------------------------------------------------------------ tmpput interface
5659: sub tmpput {
1.802 raeburn 5660: my ($storehash,$server,$context)=@_;
1.667 albertel 5661: my $items='';
1.800 albertel 5662: foreach my $item (keys(%$storehash)) {
5663: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 5664: }
5665: $items=~s/\&$//;
1.802 raeburn 5666: if (defined($context)) {
5667: $items .= ':'.&escape($context);
5668: }
1.667 albertel 5669: return &reply("tmpput:$items",$server);
5670: }
5671:
5672: # ------------------------------------------------------------ tmpget interface
5673: sub tmpget {
1.688 albertel 5674: my ($token,$server)=@_;
5675: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5676: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 5677: my %returnhash;
5678: foreach my $item (split(/\&/,$rep)) {
5679: my ($key,$value)=split(/=/,$item);
1.951 raeburn 5680: next if ($key =~ /^error: 2 /);
1.667 albertel 5681: $returnhash{&unescape($key)}=&thaw_unescape($value);
5682: }
5683: return %returnhash;
5684: }
5685:
1.1113 raeburn 5686: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 5687: sub tmpdel {
5688: my ($token,$server)=@_;
5689: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5690: return &reply("tmpdel:$token",$server);
5691: }
5692:
1.1172.2.13 raeburn 5693: # ------------------------------------------------------------ get_timebased_id
5694:
5695: sub get_timebased_id {
5696: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
5697: $maxtries) = @_;
5698: my ($newid,$error,$dellock);
5699: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
5700: return ('','ok','invalid call to get suffix');
5701: }
5702:
5703: # set defaults for any optional args for which values were not supplied
5704: if ($who eq '') {
5705: $who = $env{'user.name'}.':'.$env{'user.domain'};
5706: }
5707: if (!$locktries) {
5708: $locktries = 3;
5709: }
5710: if (!$maxtries) {
5711: $maxtries = 10;
5712: }
5713:
5714: if (($cdom eq '') || ($cnum eq '')) {
5715: if ($env{'request.course.id'}) {
5716: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5717: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5718: }
5719: if (($cdom eq '') || ($cnum eq '')) {
5720: return ('','ok','call to get suffix not in course context');
5721: }
5722: }
5723:
5724: # construct locking item
5725: my $lockhash = {
5726: $prefix."\0".'locked_'.$keyid => $who,
5727: };
5728: my $tries = 0;
5729:
5730: # attempt to get lock on nohist_$namespace file
5731: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5732: while (($gotlock ne 'ok') && $tries <$locktries) {
5733: $tries ++;
5734: sleep 1;
5735: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5736: }
5737:
5738: # attempt to get unique identifier, based on current timestamp
5739: if ($gotlock eq 'ok') {
5740: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
5741: my $id = time;
5742: $newid = $id;
5743: my $idtries = 0;
5744: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
5745: if ($idtype eq 'concat') {
5746: $newid = $id.$idtries;
5747: } else {
5748: $newid ++;
5749: }
5750: $idtries ++;
5751: }
5752: if (!exists($inuse{$prefix."\0".$newid})) {
5753: my %new_item = (
5754: $prefix."\0".$newid => $who,
5755: );
5756: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
5757: $cdom,$cnum);
5758: if ($putresult ne 'ok') {
5759: undef($newid);
5760: $error = 'error saving new item: '.$putresult;
5761: }
5762: } else {
5763: $error = ('error: no unique suffix available for the new item ');
5764: }
5765: # remove lock
5766: my @del_lock = ($prefix."\0".'locked_'.$keyid);
5767: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
5768: } else {
5769: $error = "error: could not obtain lockfile\n";
5770: $dellock = 'ok';
5771: }
5772: return ($newid,$dellock,$error);
5773: }
5774:
1.765 albertel 5775: # -------------------------------------------------- portfolio access checking
5776:
5777: sub portfolio_access {
1.766 albertel 5778: my ($requrl) = @_;
1.765 albertel 5779: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
5780: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 5781: if ($result) {
5782: my %setters;
5783: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5784: my ($startblock,$endblock) =
5785: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
5786: if ($startblock && $endblock) {
5787: return 'B';
5788: }
5789: } else {
5790: my ($startblock,$endblock) =
5791: &Apache::loncommon::blockcheck(\%setters,'port');
5792: if ($startblock && $endblock) {
5793: return 'B';
5794: }
5795: }
5796: }
1.765 albertel 5797: if ($result eq 'ok') {
1.766 albertel 5798: return 'F';
1.765 albertel 5799: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 5800: return 'A';
1.765 albertel 5801: }
1.766 albertel 5802: return '';
1.765 albertel 5803: }
5804:
5805: sub get_portfolio_access {
1.767 albertel 5806: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
5807:
5808: if (!ref($access_hash)) {
5809: my $current_perms = &get_portfile_permissions($udom,$unum);
5810: my %access_controls = &get_access_controls($current_perms,$group,
5811: $file_name);
5812: $access_hash = $access_controls{$file_name};
5813: }
5814:
1.765 albertel 5815: my ($public,$guest,@domains,@users,@courses,@groups);
5816: my $now = time;
5817: if (ref($access_hash) eq 'HASH') {
5818: foreach my $key (keys(%{$access_hash})) {
5819: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5820: if ($start > $now) {
5821: next;
5822: }
5823: if ($end && $end<$now) {
5824: next;
5825: }
5826: if ($scope eq 'public') {
5827: $public = $key;
5828: last;
5829: } elsif ($scope eq 'guest') {
5830: $guest = $key;
5831: } elsif ($scope eq 'domains') {
5832: push(@domains,$key);
5833: } elsif ($scope eq 'users') {
5834: push(@users,$key);
5835: } elsif ($scope eq 'course') {
5836: push(@courses,$key);
5837: } elsif ($scope eq 'group') {
5838: push(@groups,$key);
5839: }
5840: }
5841: if ($public) {
5842: return 'ok';
5843: }
5844: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5845: if ($guest) {
5846: return $guest;
5847: }
5848: } else {
5849: if (@domains > 0) {
5850: foreach my $domkey (@domains) {
5851: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
5852: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
5853: return 'ok';
5854: }
5855: }
5856: }
5857: }
5858: if (@users > 0) {
5859: foreach my $userkey (@users) {
1.865 raeburn 5860: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
5861: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
5862: if (ref($item) eq 'HASH') {
5863: if (($item->{'uname'} eq $env{'user.name'}) &&
5864: ($item->{'udom'} eq $env{'user.domain'})) {
5865: return 'ok';
5866: }
5867: }
5868: }
5869: }
1.765 albertel 5870: }
5871: }
5872: my %roleshash;
5873: my @courses_and_groups = @courses;
5874: push(@courses_and_groups,@groups);
5875: if (@courses_and_groups > 0) {
5876: my (%allgroups,%allroles);
5877: my ($start,$end,$role,$sec,$group);
5878: foreach my $envkey (%env) {
1.1060 raeburn 5879: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5880: my $cid = $2.'_'.$3;
5881: if ($1 eq 'gr') {
5882: $group = $4;
5883: $allgroups{$cid}{$group} = $env{$envkey};
5884: } else {
5885: if ($4 eq '') {
5886: $sec = 'none';
5887: } else {
5888: $sec = $4;
5889: }
5890: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5891: }
1.811 albertel 5892: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5893: my $cid = $2.'_'.$3;
5894: if ($4 eq '') {
5895: $sec = 'none';
5896: } else {
5897: $sec = $4;
5898: }
5899: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5900: }
5901: }
5902: if (keys(%allroles) == 0) {
5903: return;
5904: }
5905: foreach my $key (@courses_and_groups) {
5906: my %content = %{$$access_hash{$key}};
5907: my $cnum = $content{'number'};
5908: my $cdom = $content{'domain'};
5909: my $cid = $cdom.'_'.$cnum;
5910: if (!exists($allroles{$cid})) {
5911: next;
5912: }
5913: foreach my $role_id (keys(%{$content{'roles'}})) {
5914: my @sections = @{$content{'roles'}{$role_id}{'section'}};
5915: my @groups = @{$content{'roles'}{$role_id}{'group'}};
5916: my @status = @{$content{'roles'}{$role_id}{'access'}};
5917: my @roles = @{$content{'roles'}{$role_id}{'role'}};
5918: foreach my $role (keys(%{$allroles{$cid}})) {
5919: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
5920: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
5921: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
5922: if (grep/^all$/,@sections) {
5923: return 'ok';
5924: } else {
5925: if (grep/^$sec$/,@sections) {
5926: return 'ok';
5927: }
5928: }
5929: }
5930: }
5931: if (keys(%{$allgroups{$cid}}) == 0) {
5932: if (grep/^none$/,@groups) {
5933: return 'ok';
5934: }
5935: } else {
5936: if (grep/^all$/,@groups) {
5937: return 'ok';
5938: }
5939: foreach my $group (keys(%{$allgroups{$cid}})) {
5940: if (grep/^$group$/,@groups) {
5941: return 'ok';
5942: }
5943: }
5944: }
5945: }
5946: }
5947: }
5948: }
5949: }
5950: if ($guest) {
5951: return $guest;
5952: }
5953: }
5954: }
5955: return;
5956: }
5957:
5958: sub course_group_datechecker {
5959: my ($dates,$now,$status) = @_;
5960: my ($start,$end) = split(/\./,$dates);
5961: if (!$start && !$end) {
5962: return 'ok';
5963: }
5964: if (grep/^active$/,@{$status}) {
5965: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
5966: return 'ok';
5967: }
5968: }
5969: if (grep/^previous$/,@{$status}) {
5970: if ($end > $now ) {
5971: return 'ok';
5972: }
5973: }
5974: if (grep/^future$/,@{$status}) {
5975: if ($start > $now) {
5976: return 'ok';
5977: }
5978: }
5979: return;
5980: }
5981:
5982: sub parse_portfolio_url {
5983: my ($url) = @_;
5984:
5985: my ($type,$udom,$unum,$group,$file_name);
5986:
1.823 albertel 5987: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 5988: $type = 1;
5989: $udom = $1;
5990: $unum = $2;
5991: $file_name = $3;
1.823 albertel 5992: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 5993: $type = 2;
5994: $udom = $1;
5995: $unum = $2;
5996: $group = $3;
5997: $file_name = $3.'/'.$4;
5998: }
5999: if (wantarray) {
6000: return ($type,$udom,$unum,$file_name,$group);
6001: }
6002: return $type;
6003: }
6004:
6005: sub is_portfolio_url {
6006: my ($url) = @_;
6007: return scalar(&parse_portfolio_url($url));
6008: }
6009:
1.798 raeburn 6010: sub is_portfolio_file {
6011: my ($file) = @_;
1.820 raeburn 6012: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 6013: return 1;
6014: }
6015: return;
6016: }
6017:
1.976 raeburn 6018: sub usertools_access {
1.1084 raeburn 6019: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 6020: my ($access,%tools);
6021: if ($context eq '') {
6022: $context = 'tools';
6023: }
6024: if ($context eq 'requestcourses') {
6025: %tools = (
6026: official => 1,
6027: unofficial => 1,
1.1006 raeburn 6028: community => 1,
1.985 raeburn 6029: );
1.1172.2.9 raeburn 6030: } elsif ($context eq 'requestauthor') {
6031: %tools = (
6032: requestauthor => 1,
6033: );
1.985 raeburn 6034: } else {
6035: %tools = (
6036: aboutme => 1,
6037: blog => 1,
1.1172.2.6 raeburn 6038: webdav => 1,
1.985 raeburn 6039: portfolio => 1,
6040: );
6041: }
1.976 raeburn 6042: return if (!defined($tools{$tool}));
6043:
6044: if ((!defined($udom)) || (!defined($uname))) {
6045: $udom = $env{'user.domain'};
6046: $uname = $env{'user.name'};
6047: }
6048:
1.978 raeburn 6049: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6050: if ($action ne 'reload') {
1.985 raeburn 6051: if ($context eq 'requestcourses') {
6052: return $env{'environment.canrequest.'.$tool};
1.1172.2.9 raeburn 6053: } elsif ($context eq 'requestauthor') {
6054: return $env{'environment.canrequest.author'};
1.985 raeburn 6055: } else {
6056: return $env{'environment.availabletools.'.$tool};
6057: }
6058: }
1.976 raeburn 6059: }
6060:
1.1172.2.9 raeburn 6061: my ($toolstatus,$inststatus,$envkey);
6062: if ($context eq 'requestauthor') {
6063: $envkey = $context;
6064: } else {
6065: $envkey = $context.'.'.$tool;
6066: }
1.976 raeburn 6067:
1.985 raeburn 6068: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
6069: ($action ne 'reload')) {
1.1172.2.9 raeburn 6070: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 6071: $inststatus = $env{'environment.inststatus'};
6072: } else {
1.1084 raeburn 6073: if (ref($userenvref) eq 'HASH') {
1.1172.2.9 raeburn 6074: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 6075: $inststatus = $userenvref->{'inststatus'};
6076: } else {
1.1172.2.9 raeburn 6077: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
6078: $toolstatus = $userenv{$envkey};
1.1084 raeburn 6079: $inststatus = $userenv{'inststatus'};
6080: }
1.976 raeburn 6081: }
6082:
6083: if ($toolstatus ne '') {
6084: if ($toolstatus) {
6085: $access = 1;
6086: } else {
6087: $access = 0;
6088: }
6089: return $access;
6090: }
6091:
1.1084 raeburn 6092: my ($is_adv,%domdef);
6093: if (ref($is_advref) eq 'HASH') {
6094: $is_adv = $is_advref->{'is_adv'};
6095: } else {
6096: $is_adv = &is_advanced_user($udom,$uname);
6097: }
6098: if (ref($domdefref) eq 'HASH') {
6099: %domdef = %{$domdefref};
6100: } else {
6101: %domdef = &get_domain_defaults($udom);
6102: }
1.976 raeburn 6103: if (ref($domdef{$tool}) eq 'HASH') {
6104: if ($is_adv) {
6105: if ($domdef{$tool}{'_LC_adv'} ne '') {
6106: if ($domdef{$tool}{'_LC_adv'}) {
6107: $access = 1;
6108: } else {
6109: $access = 0;
6110: }
6111: return $access;
6112: }
6113: }
6114: if ($inststatus ne '') {
6115: my ($hasaccess,$hasnoaccess);
6116: foreach my $affiliation (split(/:/,$inststatus)) {
6117: if ($domdef{$tool}{$affiliation} ne '') {
6118: if ($domdef{$tool}{$affiliation}) {
6119: $hasaccess = 1;
6120: } else {
6121: $hasnoaccess = 1;
6122: }
6123: }
6124: }
6125: if ($hasaccess || $hasnoaccess) {
6126: if ($hasaccess) {
6127: $access = 1;
6128: } elsif ($hasnoaccess) {
6129: $access = 0;
6130: }
6131: return $access;
6132: }
6133: } else {
6134: if ($domdef{$tool}{'default'} ne '') {
6135: if ($domdef{$tool}{'default'}) {
6136: $access = 1;
6137: } elsif ($domdef{$tool}{'default'} == 0) {
6138: $access = 0;
6139: }
6140: return $access;
6141: }
6142: }
6143: } else {
1.1172.2.6 raeburn 6144: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 6145: $access = 1;
6146: } else {
6147: $access = 0;
6148: }
1.976 raeburn 6149: return $access;
6150: }
6151: }
6152:
1.1050 raeburn 6153: sub is_course_owner {
6154: my ($cdom,$cnum,$udom,$uname) = @_;
6155: if (($udom eq '') || ($uname eq '')) {
6156: $udom = $env{'user.domain'};
6157: $uname = $env{'user.name'};
6158: }
6159: unless (($udom eq '') || ($uname eq '')) {
6160: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
6161: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
6162: return 1;
6163: } else {
6164: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
6165: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
6166: return 1;
6167: }
6168: }
6169: }
6170: }
6171: return;
6172: }
6173:
1.976 raeburn 6174: sub is_advanced_user {
6175: my ($udom,$uname) = @_;
1.1085 raeburn 6176: if ($udom ne '' && $uname ne '') {
6177: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 6178: if (wantarray) {
6179: return ($env{'user.adv'},$env{'user.author'});
6180: } else {
6181: return $env{'user.adv'};
6182: }
1.1085 raeburn 6183: }
6184: }
1.976 raeburn 6185: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
6186: my %allroles;
1.1128 raeburn 6187: my ($is_adv,$is_author);
1.976 raeburn 6188: foreach my $role (keys(%roleshash)) {
6189: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
6190: my $area = '/'.$tdomain.'/'.$trest;
6191: if ($sec ne '') {
6192: $area .= '/'.$sec;
6193: }
6194: if (($area ne '') && ($trole ne '')) {
6195: my $spec=$trole.'.'.$area;
6196: if ($trole =~ /^cr\//) {
6197: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
6198: } elsif ($trole ne 'gr') {
6199: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
6200: }
1.1128 raeburn 6201: if ($trole eq 'au') {
6202: $is_author = 1;
6203: }
1.976 raeburn 6204: }
6205: }
6206: foreach my $role (keys(%allroles)) {
6207: last if ($is_adv);
6208: foreach my $item (split(/:/,$allroles{$role})) {
6209: if ($item ne '') {
6210: my ($privilege,$restrictions)=split(/&/,$item);
6211: if ($privilege eq 'adv') {
6212: $is_adv = 1;
6213: last;
6214: }
6215: }
6216: }
6217: }
1.1128 raeburn 6218: if (wantarray) {
6219: return ($is_adv,$is_author);
6220: }
1.976 raeburn 6221: return $is_adv;
6222: }
1.798 raeburn 6223:
1.1035 raeburn 6224: sub check_can_request {
1.1036 raeburn 6225: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 6226: my $canreq = 0;
6227: my ($types,$typename) = &Apache::loncommon::course_types();
6228: my @options = ('approval','validate','autolimit');
6229: my $optregex = join('|',@options);
6230: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
6231: foreach my $type (@{$types}) {
6232: if (&usertools_access($env{'user.name'},
6233: $env{'user.domain'},
6234: $type,undef,'requestcourses')) {
6235: $canreq ++;
1.1036 raeburn 6236: if (ref($request_domains) eq 'HASH') {
6237: push(@{$request_domains->{$type}},$env{'user.domain'});
6238: }
1.1035 raeburn 6239: if ($dom eq $env{'user.domain'}) {
6240: $can_request->{$type} = 1;
6241: }
6242: }
6243: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
6244: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
6245: if (@curr > 0) {
1.1036 raeburn 6246: foreach my $item (@curr) {
6247: if (ref($request_domains) eq 'HASH') {
6248: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
6249: if ($otherdom ne '') {
6250: if (ref($request_domains->{$type}) eq 'ARRAY') {
6251: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
6252: push(@{$request_domains->{$type}},$otherdom);
6253: }
6254: } else {
6255: push(@{$request_domains->{$type}},$otherdom);
6256: }
6257: }
6258: }
6259: }
6260: unless($dom eq $env{'user.domain'}) {
6261: $canreq ++;
1.1035 raeburn 6262: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
6263: $can_request->{$type} = 1;
6264: }
6265: }
6266: }
6267: }
6268: }
6269: }
6270: return $canreq;
6271: }
6272:
1.341 www 6273: # ---------------------------------------------- Custom access rule evaluation
6274:
6275: sub customaccess {
6276: my ($priv,$uri)=@_;
1.807 albertel 6277: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 6278: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 6279: $udom = &LONCAPA::clean_domain($udom);
6280: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 6281: my $access=0;
1.800 albertel 6282: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 6283: my ($effect,$realm,$role,$type)=split(/\:/,$right);
6284: if ($type eq 'user') {
6285: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 6286: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 6287: if ($tdom) {
6288: if ($tdom ne $env{'user.domain'}) { next; }
6289: }
1.896 albertel 6290: if ($tuname) {
6291: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 6292: }
6293: $access=($effect eq 'allow');
6294: last;
6295: }
6296: } else {
6297: if ($role) {
6298: if ($role ne $urole) { next; }
6299: }
6300: foreach my $scope (split(/\s*\,\s*/,$realm)) {
6301: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
6302: if ($tdom) {
6303: if ($tdom ne $udom) { next; }
6304: }
6305: if ($tcrs) {
6306: if ($tcrs ne $ucrs) { next; }
6307: }
6308: if ($tsec) {
6309: if ($tsec ne $usec) { next; }
6310: }
6311: $access=($effect eq 'allow');
6312: last;
6313: }
6314: if ($realm eq '' && $role eq '') {
6315: $access=($effect eq 'allow');
6316: }
1.402 bowersj2 6317: }
1.341 www 6318: }
6319: return $access;
6320: }
6321:
1.103 harris41 6322: # ------------------------------------------------- Check for a user privilege
1.12 www 6323:
6324: sub allowed {
1.810 raeburn 6325: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 6326: my $ver_orguri=$uri;
1.439 www 6327: $uri=&deversion($uri);
1.152 www 6328: my $orguri=$uri;
1.52 www 6329: $uri=&declutter($uri);
1.809 raeburn 6330:
1.810 raeburn 6331: if ($priv eq 'evb') {
6332: # Evade communication block restrictions for specified role in a course
6333: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
6334: return $1;
6335: } else {
6336: return;
6337: }
6338: }
6339:
1.620 albertel 6340: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 6341: # Free bre access to adm and meta resources
1.775 albertel 6342: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 6343: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
6344: && ($priv eq 'bre')) {
1.14 www 6345: return 'F';
1.159 www 6346: }
6347:
1.545 banghart 6348: # Free bre access to user's own portfolio contents
1.714 raeburn 6349: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 6350: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 6351: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 6352: my %setters;
6353: my ($startblock,$endblock) =
6354: &Apache::loncommon::blockcheck(\%setters,'port');
6355: if ($startblock && $endblock) {
6356: return 'B';
6357: } else {
6358: return 'F';
6359: }
1.545 banghart 6360: }
6361:
1.762 raeburn 6362: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 6363: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
6364: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
6365: if (exists($env{'request.course.id'})) {
6366: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6367: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6368: if (($domain eq $cdom) && ($name eq $cnum)) {
6369: my $courseprivid=$env{'request.course.id'};
6370: $courseprivid=~s/\_/\//;
6371: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
6372: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
6373: return $1;
1.762 raeburn 6374: } else {
6375: if ($env{'request.course.sec'}) {
6376: $courseprivid.='/'.$env{'request.course.sec'};
6377: }
6378: if ($env{'user.priv.'.$env{'request.role'}.'./'.
6379: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
6380: return $2;
6381: }
1.714 raeburn 6382: }
6383: }
6384: }
6385: }
6386:
1.159 www 6387: # Free bre to public access
6388:
6389: if ($priv eq 'bre') {
1.238 www 6390: my $copyright=&metadata($uri,'copyright');
1.620 albertel 6391: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 6392: return 'F';
6393: }
1.238 www 6394: if ($copyright eq 'priv') {
6395: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6396: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 6397: return '';
6398: }
6399: }
6400: if ($copyright eq 'domain') {
6401: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6402: unless (($env{'user.domain'} eq $1) ||
6403: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 6404: return '';
6405: }
1.262 matthew 6406: }
1.620 albertel 6407: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 6408: # Library role, so allow browsing of resources in this domain.
6409: return 'F';
1.238 www 6410: }
1.341 www 6411: if ($copyright eq 'custom') {
6412: unless (&customaccess($priv,$uri)) { return ''; }
6413: }
1.14 www 6414: }
1.264 matthew 6415: # Domain coordinator is trying to create a course
1.620 albertel 6416: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 6417: # uri is the requested domain in this case.
6418: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 6419: # a role of dc for the domain in question.
1.620 albertel 6420: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 6421: }
1.29 www 6422:
1.52 www 6423: my $thisallowed='';
6424: my $statecond=0;
6425: my $courseprivid='';
6426:
1.1039 raeburn 6427: my $ownaccess;
1.1043 raeburn 6428: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 6429: if (($priv eq 'bro') && ($env{'user.author'})) {
6430: if ($uri eq '') {
6431: $ownaccess = 1;
6432: } else {
6433: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
6434: my $udom = $env{'user.domain'};
6435: my $uname = $env{'user.name'};
6436: if ($uri =~ m{^\Q$udom\E/?$}) {
6437: $ownaccess = 1;
1.1040 raeburn 6438: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 6439: unless ($uri =~ m{\.\./}) {
6440: $ownaccess = 1;
6441: }
6442: } elsif (($udom ne 'public') && ($uname ne 'public')) {
6443: my $now = time;
6444: if ($uri =~ m{^([^/]+)/?$}) {
6445: my $adom = $1;
6446: foreach my $key (keys(%env)) {
1.1042 raeburn 6447: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 6448: my ($start,$end) = split('.',$env{$key});
6449: if (($now >= $start) && (!$end || $end < $now)) {
6450: $ownaccess = 1;
6451: last;
6452: }
6453: }
6454: }
6455: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
6456: my $adom = $1;
6457: my $aname = $2;
1.1042 raeburn 6458: foreach my $role ('ca','aa') {
6459: if ($env{"user.role.$role./$adom/$aname"}) {
6460: my ($start,$end) =
6461: split('.',$env{"user.role.$role./$adom/$aname"});
6462: if (($now >= $start) && (!$end || $end < $now)) {
6463: $ownaccess = 1;
6464: last;
6465: }
1.1039 raeburn 6466: }
6467: }
6468: }
6469: }
6470: }
6471: }
6472: }
6473:
1.52 www 6474: # Course
6475:
1.620 albertel 6476: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6477: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6478: $thisallowed.=$1;
6479: }
1.52 www 6480: }
1.29 www 6481:
1.52 www 6482: # Domain
6483:
1.620 albertel 6484: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 6485: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6486: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6487: $thisallowed.=$1;
6488: }
1.12 www 6489: }
1.52 www 6490:
1.1141 raeburn 6491: # User who is not author or co-author might still be able to edit
6492: # resource of an author in the domain (e.g., if Domain Coordinator).
6493: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
6494: (&allowed('mdc',$env{'request.course.id'}))) {
6495: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
6496: $thisallowed.=$1;
6497: }
6498: }
6499:
1.52 www 6500: # Course: uri itself is a course
1.66 www 6501: my $courseuri=$uri;
6502: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 6503: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 6504:
1.620 albertel 6505: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 6506: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6507: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6508: $thisallowed.=$1;
6509: }
1.12 www 6510: }
1.29 www 6511:
1.665 albertel 6512: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 6513: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 6514: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 6515: $thisallowed='';
1.671 raeburn 6516: my ($match)=&is_on_map($uri);
6517: if ($match) {
6518: if ($env{'user.priv.'.$env{'request.role'}.'./'}
6519: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6520: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6521: if (@blockers > 0) {
6522: $thisallowed = 'B';
6523: } else {
6524: $thisallowed.=$1;
6525: }
1.671 raeburn 6526: }
6527: } else {
1.705 albertel 6528: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 6529: if ($refuri) {
6530: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 6531: $thisallowed='F';
1.671 raeburn 6532: } else {
6533: $refuri=&declutter($refuri);
6534: my ($match) = &is_on_map($refuri);
6535: if ($match) {
1.1162 raeburn 6536: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6537: if (@blockers > 0) {
6538: $thisallowed = 'B';
6539: } else {
6540: $thisallowed='F';
6541: }
1.671 raeburn 6542: }
1.669 raeburn 6543: }
1.671 raeburn 6544: }
6545: }
1.314 www 6546: }
1.492 albertel 6547:
1.766 albertel 6548: if ($priv eq 'bre'
6549: && $thisallowed ne 'F'
6550: && $thisallowed ne '2'
6551: && &is_portfolio_url($uri)) {
6552: $thisallowed = &portfolio_access($uri);
6553: }
6554:
1.52 www 6555: # Full access at system, domain or course-wide level? Exit.
1.29 www 6556: if ($thisallowed=~/F/) {
6557: return 'F';
6558: }
6559:
1.52 www 6560: # If this is generating or modifying users, exit with special codes
1.29 www 6561:
1.643 www 6562: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
6563: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 6564: my ($audom,$auname)=split('/',$uri);
1.643 www 6565: # no author name given, so this just checks on the general right to make a co-author in this domain
6566: unless ($auname) { return $thisallowed; }
6567: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 6568: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
6569: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
6570: ($audom ne $env{'request.role.domain'}))) { return ''; }
6571: }
1.52 www 6572: return $thisallowed;
6573: }
6574: #
1.103 harris41 6575: # Gathered so far: system, domain and course wide privileges
1.52 www 6576: #
6577: # Course: See if uri or referer is an individual resource that is part of
6578: # the course
6579:
1.620 albertel 6580: if ($env{'request.course.id'}) {
1.232 www 6581:
1.620 albertel 6582: $courseprivid=$env{'request.course.id'};
6583: if ($env{'request.course.sec'}) {
6584: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 6585: }
6586: $courseprivid=~s/\_/\//;
6587: my $checkreferer=1;
1.232 www 6588: my ($match,$cond)=&is_on_map($uri);
6589: if ($match) {
6590: $statecond=$cond;
1.620 albertel 6591: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6592: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6593: my $value = $1;
6594: if ($priv eq 'bre') {
6595: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6596: if (@blockers > 0) {
6597: $thisallowed = 'B';
6598: } else {
6599: $thisallowed.=$value;
6600: }
6601: } else {
6602: $thisallowed.=$value;
6603: }
1.52 www 6604: $checkreferer=0;
6605: }
1.29 www 6606: }
1.83 www 6607:
1.148 www 6608: if ($checkreferer) {
1.620 albertel 6609: my $refuri=$env{'httpref.'.$orguri};
1.148 www 6610: unless ($refuri) {
1.800 albertel 6611: foreach my $key (keys(%env)) {
6612: if ($key=~/^httpref\..*\*/) {
6613: my $pattern=$key;
1.156 www 6614: $pattern=~s/^httpref\.\/res\///;
1.148 www 6615: $pattern=~s/\*/\[\^\/\]\+/g;
6616: $pattern=~s/\//\\\//g;
1.152 www 6617: if ($orguri=~/$pattern/) {
1.800 albertel 6618: $refuri=$env{$key};
1.148 www 6619: }
6620: }
1.191 harris41 6621: }
1.148 www 6622: }
1.232 www 6623:
1.148 www 6624: if ($refuri) {
1.152 www 6625: $refuri=&declutter($refuri);
1.232 www 6626: my ($match,$cond)=&is_on_map($refuri);
6627: if ($match) {
6628: my $refstatecond=$cond;
1.620 albertel 6629: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6630: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6631: my $value = $1;
6632: if ($priv eq 'bre') {
6633: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6634: if (@blockers > 0) {
6635: $thisallowed = 'B';
6636: } else {
6637: $thisallowed.=$value;
6638: }
6639: } else {
6640: $thisallowed.=$value;
6641: }
1.53 www 6642: $uri=$refuri;
6643: $statecond=$refstatecond;
1.52 www 6644: }
6645: }
1.148 www 6646: }
1.29 www 6647: }
1.52 www 6648: }
1.29 www 6649:
1.52 www 6650: #
1.103 harris41 6651: # Gathered now: all privileges that could apply, and condition number
1.52 www 6652: #
6653: #
6654: # Full or no access?
6655: #
1.29 www 6656:
1.52 www 6657: if ($thisallowed=~/F/) {
6658: return 'F';
6659: }
1.29 www 6660:
1.52 www 6661: unless ($thisallowed) {
6662: return '';
6663: }
1.29 www 6664:
1.52 www 6665: # Restrictions exist, deal with them
6666: #
6667: # C:according to course preferences
6668: # R:according to resource settings
6669: # L:unless locked
6670: # X:according to user session state
6671: #
6672:
6673: # Possibly locked functionality, check all courses
1.54 www 6674: # Locks might take effect only after 10 minutes cache expiration for other
6675: # courses, and 2 minutes for current course
1.52 www 6676:
6677: my $envkey;
6678: if ($thisallowed=~/L/) {
1.1000 raeburn 6679: foreach $envkey (keys(%env)) {
1.54 www 6680: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
6681: my $courseid=$2;
6682: my $roleid=$1.'.'.$2;
1.92 www 6683: $courseid=~s/^\///;
1.54 www 6684: my $expiretime=600;
1.620 albertel 6685: if ($env{'request.role'} eq $roleid) {
1.54 www 6686: $expiretime=120;
6687: }
6688: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
6689: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 6690: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 6691: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 6692: }
1.620 albertel 6693: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
6694: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
6695: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
6696: &log($env{'user.domain'},$env{'user.name'},
6697: $env{'user.home'},
1.57 www 6698: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 6699: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6700: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6701: return '';
6702: }
6703: }
1.620 albertel 6704: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
6705: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
6706: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
6707: &log($env{'user.domain'},$env{'user.name'},
6708: $env{'user.home'},
1.57 www 6709: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 6710: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6711: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6712: return '';
6713: }
6714: }
6715: }
1.29 www 6716: }
1.52 www 6717: }
6718:
6719: #
6720: # Rest of the restrictions depend on selected course
6721: #
6722:
1.620 albertel 6723: unless ($env{'request.course.id'}) {
1.766 albertel 6724: if ($thisallowed eq 'A') {
6725: return 'A';
1.814 raeburn 6726: } elsif ($thisallowed eq 'B') {
6727: return 'B';
1.766 albertel 6728: } else {
6729: return '1';
6730: }
1.52 www 6731: }
1.29 www 6732:
1.52 www 6733: #
6734: # Now user is definitely in a course
6735: #
1.53 www 6736:
6737:
6738: # Course preferences
6739:
6740: if ($thisallowed=~/C/) {
1.620 albertel 6741: my $rolecode=(split(/\./,$env{'request.role'}))[0];
6742: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
6743: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 6744: =~/\Q$rolecode\E/) {
1.1103 raeburn 6745: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6746: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6747: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
6748: $env{'request.course.id'});
6749: }
1.237 www 6750: return '';
6751: }
6752:
1.620 albertel 6753: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 6754: =~/\Q$unamedom\E/) {
1.1103 raeburn 6755: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6756: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
6757: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
6758: $env{'request.course.id'});
6759: }
1.54 www 6760: return '';
6761: }
1.53 www 6762: }
6763:
6764: # Resource preferences
6765:
6766: if ($thisallowed=~/R/) {
1.620 albertel 6767: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 6768: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 6769: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6770: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6771: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
6772: }
6773: return '';
1.54 www 6774: }
1.53 www 6775: }
1.30 www 6776:
1.246 www 6777: # Restricted by state or randomout?
1.30 www 6778:
1.52 www 6779: if ($thisallowed=~/X/) {
1.620 albertel 6780: if ($env{'acc.randomout'}) {
1.579 albertel 6781: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 6782: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 6783: return '';
6784: }
1.247 www 6785: }
6786: if (&condval($statecond)) {
1.52 www 6787: return '2';
6788: } else {
6789: return '';
6790: }
6791: }
1.30 www 6792:
1.766 albertel 6793: if ($thisallowed eq 'A') {
6794: return 'A';
1.814 raeburn 6795: } elsif ($thisallowed eq 'B') {
6796: return 'B';
1.766 albertel 6797: }
1.52 www 6798: return 'F';
1.232 www 6799: }
1.1162 raeburn 6800:
1.1172.2.13 raeburn 6801: # ------------------------------------------- Check construction space access
6802:
6803: sub constructaccess {
6804: my ($url,$setpriv)=@_;
6805:
6806: # We do not allow editing of previous versions of files
6807: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
6808:
6809: # Get username and domain from URL
6810: my ($ownername,$ownerdomain,$ownerhome);
6811:
6812: ($ownerdomain,$ownername) =
6813: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)/});
6814:
6815: # The URL does not really point to any authorspace, forget it
6816: unless (($ownername) && ($ownerdomain)) { return ''; }
6817:
6818: # Now we need to see if the user has access to the authorspace of
6819: # $ownername at $ownerdomain
6820:
6821: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
6822: # Real author for this?
6823: $ownerhome = $env{'user.home'};
6824: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
6825: return ($ownername,$ownerdomain,$ownerhome);
6826: }
6827: } else {
6828: # Co-author for this?
6829: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
6830: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
6831: $ownerhome = &homeserver($ownername,$ownerdomain);
6832: return ($ownername,$ownerdomain,$ownerhome);
6833: }
6834: }
6835:
6836: # We don't have any access right now. If we are not possibly going to do anything about this,
6837: # we might as well leave
6838: unless ($setpriv) { return ''; }
6839:
6840: # Backdoor access?
6841: my $allowed=&allowed('eco',$ownerdomain);
6842: # Nope
6843: unless ($allowed) { return ''; }
6844: # Looks like we may have access, but could be locked by the owner of the construction space
6845: if ($allowed eq 'U') {
6846: my %blocked=&get('environment',['domcoord.author'],
6847: $ownerdomain,$ownername);
6848: # Is blocked by owner
6849: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
6850: }
6851: if (($allowed eq 'F') || ($allowed eq 'U')) {
6852: # Grant temporary access
6853: my $then=$env{'user.login.time'};
1.1172.2.16 raeburn 6854: my $update=$env{'user.update.time'};
1.1172.2.13 raeburn 6855: if (!$update) { $update = $then; }
6856: my $refresh=$env{'user.refresh.time'};
6857: if (!$refresh) { $refresh = $update; }
6858: my $now = time;
6859: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
6860: $now,'ca','constructaccess');
6861: $ownerhome = &homeserver($ownername,$ownerdomain);
6862: return($ownername,$ownerdomain,$ownerhome);
6863: }
6864: # No business here
6865: return '';
6866: }
6867:
1.1162 raeburn 6868: sub get_comm_blocks {
6869: my ($cdom,$cnum) = @_;
6870: if ($cdom eq '' || $cnum eq '') {
6871: return unless ($env{'request.course.id'});
6872: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6873: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6874: }
6875: my %commblocks;
6876: my $hashid=$cdom.'_'.$cnum;
6877: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
6878: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
6879: %commblocks = %{$blocksref};
6880: } else {
6881: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
6882: my $cachetime = 600;
6883: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
6884: }
6885: return %commblocks;
6886: }
6887:
6888: sub has_comm_blocking {
6889: my ($priv,$symb,$uri,$blocks) = @_;
6890: return unless ($env{'request.course.id'});
6891: return unless ($priv eq 'bre');
6892: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
6893: my %commblocks;
6894: if (ref($blocks) eq 'HASH') {
6895: %commblocks = %{$blocks};
6896: } else {
6897: %commblocks = &get_comm_blocks();
6898: }
6899: return unless (keys(%commblocks) > 0);
6900: if (!$symb) { $symb=&symbread($uri,1); }
6901: my ($map,$resid,undef)=&decode_symb($symb);
6902: my %tocheck = (
6903: maps => $map,
6904: resources => $symb,
6905: );
6906: my @blockers;
6907: my $now = time;
1.1163 raeburn 6908: my $navmap = Apache::lonnavmaps::navmap->new();
1.1162 raeburn 6909: foreach my $block (keys(%commblocks)) {
6910: if ($block =~ /^(\d+)____(\d+)$/) {
6911: my ($start,$end) = ($1,$2);
6912: if ($start <= $now && $end >= $now) {
6913: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6914: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6915: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
6916: if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
6917: unless (grep(/^\Q$block\E$/,@blockers)) {
6918: push(@blockers,$block);
6919: }
6920: }
6921: }
6922: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
6923: if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
6924: unless (grep(/^\Q$block\E$/,@blockers)) {
6925: push(@blockers,$block);
6926: }
6927: }
6928: }
6929: }
6930: }
6931: }
6932: } elsif ($block =~ /^firstaccess____(.+)$/) {
6933: my $item = $1;
1.1163 raeburn 6934: my @to_test;
1.1162 raeburn 6935: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6936: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6937: my $check_interval;
6938: if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
6939: my @interval;
6940: my $type = 'map';
6941: if ($item eq 'course') {
6942: $type = 'course';
6943: @interval=&EXT("resource.0.interval");
6944: } else {
6945: if ($item =~ /___\d+___/) {
6946: $type = 'resource';
6947: @interval=&EXT("resource.0.interval",$item);
1.1163 raeburn 6948: if (ref($navmap)) {
6949: my $res = $navmap->getBySymb($item);
6950: push(@to_test,$res);
6951: }
1.1162 raeburn 6952: } else {
6953: my $mapsymb = &symbread($item,1);
6954: if ($mapsymb) {
6955: if (ref($navmap)) {
6956: my $mapres = $navmap->getBySymb($mapsymb);
1.1163 raeburn 6957: @to_test = $mapres->retrieveResources($mapres,undef,0,1);
6958: foreach my $res (@to_test) {
1.1162 raeburn 6959: my $symb = $res->symb();
6960: next if ($symb eq $mapsymb);
6961: if ($symb ne '') {
6962: @interval=&EXT("resource.0.interval",$symb);
6963: last;
6964: }
6965: }
6966: }
6967: }
6968: }
6969: }
6970: if ($interval[0] =~ /\d+/) {
6971: my $first_access;
6972: if ($type eq 'resource') {
6973: $first_access=&get_first_access($interval[1],$item);
6974: } elsif ($type eq 'map') {
6975: $first_access=&get_first_access($interval[1],undef,$item);
6976: } else {
6977: $first_access=&get_first_access($interval[1]);
6978: }
6979: if ($first_access) {
6980: my $timesup = $first_access+$interval[0];
6981: if ($timesup > $now) {
1.1163 raeburn 6982: foreach my $res (@to_test) {
6983: if ($res->is_problem()) {
6984: if ($res->completable()) {
6985: unless (grep(/^\Q$block\E$/,@blockers)) {
6986: push(@blockers,$block);
6987: }
6988: last;
6989: }
6990: }
1.1162 raeburn 6991: }
6992: }
6993: }
6994: }
6995: }
6996: }
6997: }
6998: }
6999: }
7000: return @blockers;
7001: }
7002:
7003: sub check_docs_block {
7004: my ($docsblock,$tocheck) =@_;
7005: if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) {
7006: return;
7007: }
7008: if (ref($docsblock->{'maps'}) eq 'HASH') {
7009: if ($tocheck->{'maps'}) {
7010: if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
7011: return 1;
7012: }
7013: }
7014: }
7015: if (ref($docsblock->{'resources'}) eq 'HASH') {
7016: if ($tocheck->{'resources'}) {
7017: if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
7018: return 1;
7019: }
7020: }
7021: }
7022: return;
7023: }
7024:
1.1133 foxr 7025: #
7026: # Removes the versino from a URI and
7027: # splits it in to its filename and path to the filename.
7028: # Seems like File::Basename could have done this more clearly.
7029: # Parameters:
7030: # $uri - input URI
7031: # Returns:
7032: # Two element list consisting of
7033: # $pathname - the URI up to and excluding the trailing /
7034: # $filename - The part of the URI following the last /
7035: # NOTE:
7036: # Another realization of this is simply:
7037: # use File::Basename;
7038: # ...
7039: # $uri = shift;
7040: # $filename = basename($uri);
7041: # $path = dirname($uri);
7042: # return ($filename, $path);
7043: #
7044: # The implementation below is probably faster however.
7045: #
1.710 albertel 7046: sub split_uri_for_cond {
7047: my $uri=&deversion(&declutter(shift));
7048: my @uriparts=split(/\//,$uri);
7049: my $filename=pop(@uriparts);
7050: my $pathname=join('/',@uriparts);
7051: return ($pathname,$filename);
7052: }
1.232 www 7053: # --------------------------------------------------- Is a resource on the map?
7054:
7055: sub is_on_map {
1.710 albertel 7056: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 7057: #Trying to find the conditional for the file
1.620 albertel 7058: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 7059: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 7060: if ($match) {
1.289 bowersj2 7061: return (1,$1);
7062: } else {
1.434 www 7063: return (0,0);
1.289 bowersj2 7064: }
1.12 www 7065: }
7066:
1.427 www 7067: # --------------------------------------------------------- Get symb from alias
7068:
7069: sub get_symb_from_alias {
7070: my $symb=shift;
7071: my ($map,$resid,$url)=&decode_symb($symb);
7072: # Already is a symb
7073: if ($url) { return $symb; }
7074: # Must be an alias
7075: my $aliassymb='';
7076: my %bighash;
1.620 albertel 7077: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 7078: &GDBM_READER(),0640)) {
7079: my $rid=$bighash{'mapalias_'.$symb};
7080: if ($rid) {
7081: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 7082: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
7083: $resid,$bighash{'src_'.$rid});
1.427 www 7084: }
7085: untie %bighash;
7086: }
7087: return $aliassymb;
7088: }
7089:
1.12 www 7090: # ----------------------------------------------------------------- Define Role
7091:
7092: sub definerole {
7093: if (allowed('mcr','/')) {
7094: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 7095: foreach my $role (split(':',$sysrole)) {
7096: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7097: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
7098: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
7099: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7100: return "refused:s:$crole&$cqual";
7101: }
7102: }
1.191 harris41 7103: }
1.800 albertel 7104: foreach my $role (split(':',$domrole)) {
7105: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7106: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
7107: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
7108: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 7109: return "refused:d:$crole&$cqual";
7110: }
7111: }
1.191 harris41 7112: }
1.800 albertel 7113: foreach my $role (split(':',$courole)) {
7114: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7115: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
7116: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
7117: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7118: return "refused:c:$crole&$cqual";
7119: }
7120: }
1.191 harris41 7121: }
1.620 albertel 7122: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
7123: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7124: "rolesdef_$rolename=".
7125: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 7126: return reply($command,$env{'user.home'});
1.12 www 7127: } else {
7128: return 'refused';
7129: }
1.105 harris41 7130: }
7131:
7132: # ---------------- Make a metadata query against the network of library servers
7133:
7134: sub metadata_query {
1.244 matthew 7135: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 7136: my %rhash;
1.845 albertel 7137: my %libserv = &all_library();
1.244 matthew 7138: my @server_list = (defined($server_array) ? @$server_array
7139: : keys(%libserv) );
7140: for my $server (@server_list) {
1.118 harris41 7141: unless ($custom or $customshow) {
7142: my $reply=&reply("querysend:".&escape($query),$server);
7143: $rhash{$server}=$reply;
7144: }
7145: else {
7146: my $reply=&reply("querysend:".&escape($query).':'.
7147: &escape($custom).':'.&escape($customshow),
7148: $server);
7149: $rhash{$server}=$reply;
7150: }
1.112 harris41 7151: }
1.118 harris41 7152: return \%rhash;
1.240 www 7153: }
7154:
7155: # ----------------------------------------- Send log queries and wait for reply
7156:
7157: sub log_query {
7158: my ($uname,$udom,$query,%filters)=@_;
7159: my $uhome=&homeserver($uname,$udom);
7160: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 7161: my $uhost=&hostname($uhome);
1.800 albertel 7162: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 7163: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
7164: $uhome);
1.479 albertel 7165: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 7166: return get_query_reply($queryid);
7167: }
7168:
1.818 raeburn 7169: # -------------------------- Update MySQL table for portfolio file
7170:
7171: sub update_portfolio_table {
1.821 raeburn 7172: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 7173: if ($group ne '') {
7174: $file_name =~s /^\Q$group\E//;
7175: }
1.818 raeburn 7176: my $homeserver = &homeserver($uname,$udom);
7177: my $queryid=
1.821 raeburn 7178: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
7179: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 7180: my $reply = &get_query_reply($queryid);
7181: return $reply;
7182: }
7183:
1.899 raeburn 7184: # -------------------------- Update MySQL allusers table
7185:
7186: sub update_allusers_table {
7187: my ($uname,$udom,$names) = @_;
7188: my $homeserver = &homeserver($uname,$udom);
7189: my $queryid=
7190: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
7191: 'lastname='.&escape($names->{'lastname'}).'%%'.
7192: 'firstname='.&escape($names->{'firstname'}).'%%'.
7193: 'middlename='.&escape($names->{'middlename'}).'%%'.
7194: 'generation='.&escape($names->{'generation'}).'%%'.
7195: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
7196: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 7197: return;
1.899 raeburn 7198: }
7199:
1.508 raeburn 7200: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 7201:
7202: sub fetch_enrollment_query {
1.511 raeburn 7203: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 7204: my $homeserver;
1.547 raeburn 7205: my $maxtries = 1;
1.508 raeburn 7206: if ($context eq 'automated') {
7207: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 7208: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 7209: } else {
7210: $homeserver = &homeserver($cnum,$dom);
7211: }
1.838 albertel 7212: my $host=&hostname($homeserver);
1.506 raeburn 7213: my $cmd = '';
1.1000 raeburn 7214: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 7215: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 7216: }
7217: $cmd =~ s/%%$//;
7218: $cmd = &escape($cmd);
7219: my $query = 'fetchenrollment';
1.620 albertel 7220: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 7221: unless ($queryid=~/^\Q$host\E\_/) {
7222: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
7223: return 'error: '.$queryid;
7224: }
1.506 raeburn 7225: my $reply = &get_query_reply($queryid);
1.547 raeburn 7226: my $tries = 1;
7227: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7228: $reply = &get_query_reply($queryid);
7229: $tries ++;
7230: }
1.526 raeburn 7231: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 7232: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 7233: } else {
1.901 albertel 7234: my @responses = split(/:/,$reply);
1.515 raeburn 7235: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 7236: foreach my $line (@responses) {
7237: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 7238: $$replyref{$key} = $value;
7239: }
7240: } else {
1.1117 foxr 7241: my $pathname = LONCAPA::tempdir();
1.800 albertel 7242: foreach my $line (@responses) {
7243: my ($key,$value) = split(/=/,$line);
1.506 raeburn 7244: $$replyref{$key} = $value;
7245: if ($value > 0) {
1.800 albertel 7246: foreach my $item (@{$$affiliatesref{$key}}) {
7247: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 7248: my $destname = $pathname.'/'.$filename;
7249: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 7250: if ($xml_classlist =~ /^error/) {
7251: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
7252: } else {
1.506 raeburn 7253: if ( open(FILE,">$destname") ) {
7254: print FILE &unescape($xml_classlist);
7255: close(FILE);
1.526 raeburn 7256: } else {
7257: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 7258: }
7259: }
7260: }
7261: }
7262: }
7263: }
7264: return 'ok';
7265: }
7266: return 'error';
7267: }
7268:
1.242 www 7269: sub get_query_reply {
7270: my $queryid=shift;
1.1117 foxr 7271: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 7272: my $reply='';
7273: for (1..100) {
7274: sleep 2;
7275: if (-e $replyfile.'.end') {
1.448 albertel 7276: if (open(my $fh,$replyfile)) {
1.904 albertel 7277: $reply = join('',<$fh>);
7278: close($fh);
1.240 www 7279: } else { return 'error: reply_file_error'; }
1.242 www 7280: return &unescape($reply);
7281: }
1.240 www 7282: }
1.242 www 7283: return 'timeout:'.$queryid;
1.240 www 7284: }
7285:
7286: sub courselog_query {
1.241 www 7287: #
7288: # possible filters:
7289: # url: url or symb
7290: # username
7291: # domain
7292: # action: view, submit, grade
7293: # start: timestamp
7294: # end: timestamp
7295: #
1.240 www 7296: my (%filters)=@_;
1.620 albertel 7297: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 7298: if ($filters{'url'}) {
7299: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
7300: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
7301: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
7302: }
1.620 albertel 7303: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
7304: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 7305: return &log_query($cname,$cdom,'courselog',%filters);
7306: }
7307:
7308: sub userlog_query {
1.858 raeburn 7309: #
7310: # possible filters:
7311: # action: log check role
7312: # start: timestamp
7313: # end: timestamp
7314: #
1.240 www 7315: my ($uname,$udom,%filters)=@_;
7316: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 7317: }
7318:
1.506 raeburn 7319: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
7320:
7321: sub auto_run {
1.508 raeburn 7322: my ($cnum,$cdom) = @_;
1.876 raeburn 7323: my $response = 0;
7324: my $settings;
7325: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
7326: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
7327: $settings = $domconfig{'autoenroll'};
7328: if ($settings->{'run'} eq '1') {
7329: $response = 1;
7330: }
7331: } else {
1.934 raeburn 7332: my $homeserver;
7333: if (&is_course($cdom,$cnum)) {
7334: $homeserver = &homeserver($cnum,$cdom);
7335: } else {
7336: $homeserver = &domain($cdom,'primary');
7337: }
7338: if ($homeserver ne 'no_host') {
7339: $response = &reply('autorun:'.$cdom,$homeserver);
7340: }
1.876 raeburn 7341: }
1.506 raeburn 7342: return $response;
7343: }
1.776 albertel 7344:
1.506 raeburn 7345: sub auto_get_sections {
1.508 raeburn 7346: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 7347: my $homeserver;
7348: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7349: $homeserver = &homeserver($cnum,$cdom);
7350: }
7351: if (!defined($homeserver)) {
7352: if ($cdom =~ /^$match_domain$/) {
7353: $homeserver = &domain($cdom,'primary');
7354: }
7355: }
7356: my @secs;
7357: if (defined($homeserver)) {
7358: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
7359: unless ($response eq 'refused') {
7360: @secs = split(/:/,$response);
7361: }
1.506 raeburn 7362: }
7363: return @secs;
7364: }
1.776 albertel 7365:
1.506 raeburn 7366: sub auto_new_course {
1.1099 raeburn 7367: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 7368: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 7369: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 7370: return $response;
7371: }
1.776 albertel 7372:
1.506 raeburn 7373: sub auto_validate_courseID {
1.508 raeburn 7374: my ($cnum,$cdom,$inst_course_id) = @_;
7375: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 7376: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 7377: return $response;
7378: }
1.776 albertel 7379:
1.1007 raeburn 7380: sub auto_validate_instcode {
1.1020 raeburn 7381: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 7382: my ($homeserver,$response);
7383: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7384: $homeserver = &homeserver($cnum,$cdom);
7385: }
7386: if (!defined($homeserver)) {
7387: if ($cdom =~ /^$match_domain$/) {
7388: $homeserver = &domain($cdom,'primary');
7389: }
7390: }
1.1065 raeburn 7391: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
7392: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 7393: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
7394: return ($outcome,$description);
1.1007 raeburn 7395: }
7396:
1.506 raeburn 7397: sub auto_create_password {
1.873 raeburn 7398: my ($cnum,$cdom,$authparam,$udom) = @_;
7399: my ($homeserver,$response);
1.506 raeburn 7400: my $create_passwd = 0;
7401: my $authchk = '';
1.873 raeburn 7402: if ($udom =~ /^$match_domain$/) {
7403: $homeserver = &domain($udom,'primary');
7404: }
7405: if ($homeserver eq '') {
7406: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7407: $homeserver = &homeserver($cnum,$cdom);
7408: }
7409: }
7410: if ($homeserver eq '') {
7411: $authchk = 'nodomain';
1.506 raeburn 7412: } else {
1.873 raeburn 7413: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
7414: if ($response eq 'refused') {
7415: $authchk = 'refused';
7416: } else {
1.901 albertel 7417: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 7418: }
1.506 raeburn 7419: }
7420: return ($authparam,$create_passwd,$authchk);
7421: }
7422:
1.706 raeburn 7423: sub auto_photo_permission {
7424: my ($cnum,$cdom,$students) = @_;
7425: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 7426: my ($outcome,$perm_reqd,$conditions) =
7427: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 7428: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7429: return (undef,undef);
7430: }
1.706 raeburn 7431: return ($outcome,$perm_reqd,$conditions);
7432: }
7433:
7434: sub auto_checkphotos {
7435: my ($uname,$udom,$pid) = @_;
7436: my $homeserver = &homeserver($uname,$udom);
7437: my ($result,$resulttype);
7438: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 7439: &escape($uname).':'.&escape($pid),
7440: $homeserver));
1.709 albertel 7441: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7442: return (undef,undef);
7443: }
1.706 raeburn 7444: if ($outcome) {
7445: ($result,$resulttype) = split(/:/,$outcome);
7446: }
7447: return ($result,$resulttype);
7448: }
7449:
7450: sub auto_photochoice {
7451: my ($cnum,$cdom) = @_;
7452: my $homeserver = &homeserver($cnum,$cdom);
7453: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 7454: &escape($cdom),
7455: $homeserver)));
1.709 albertel 7456: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7457: return (undef,undef);
7458: }
1.706 raeburn 7459: return ($update,$comment);
7460: }
7461:
7462: sub auto_photoupdate {
7463: my ($affiliatesref,$dom,$cnum,$photo) = @_;
7464: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 7465: my $host=&hostname($homeserver);
1.706 raeburn 7466: my $cmd = '';
7467: my $maxtries = 1;
1.800 albertel 7468: foreach my $affiliate (keys(%{$affiliatesref})) {
7469: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 7470: }
7471: $cmd =~ s/%%$//;
7472: $cmd = &escape($cmd);
7473: my $query = 'institutionalphotos';
7474: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
7475: unless ($queryid=~/^\Q$host\E\_/) {
7476: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
7477: return 'error: '.$queryid;
7478: }
7479: my $reply = &get_query_reply($queryid);
7480: my $tries = 1;
7481: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7482: $reply = &get_query_reply($queryid);
7483: $tries ++;
7484: }
7485: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
7486: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
7487: } else {
7488: my @responses = split(/:/,$reply);
7489: my $outcome = shift(@responses);
7490: foreach my $item (@responses) {
7491: my ($key,$value) = split(/=/,$item);
7492: $$photo{$key} = $value;
7493: }
7494: return $outcome;
7495: }
7496: return 'error';
7497: }
7498:
1.521 raeburn 7499: sub auto_instcode_format {
1.793 albertel 7500: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
7501: $cat_order) = @_;
1.521 raeburn 7502: my $courses = '';
1.772 raeburn 7503: my @homeservers;
1.521 raeburn 7504: if ($caller eq 'global') {
1.841 albertel 7505: my %servers = &get_servers($codedom,'library');
7506: foreach my $tryserver (keys(%servers)) {
7507: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7508: push(@homeservers,$tryserver);
7509: }
1.584 raeburn 7510: }
1.1022 raeburn 7511: } elsif ($caller eq 'requests') {
7512: if ($codedom =~ /^$match_domain$/) {
7513: my $chome = &domain($codedom,'primary');
7514: unless ($chome eq 'no_host') {
7515: push(@homeservers,$chome);
7516: }
7517: }
1.521 raeburn 7518: } else {
1.772 raeburn 7519: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 7520: }
1.793 albertel 7521: foreach my $code (keys(%{$instcodes})) {
7522: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 7523: }
7524: chop($courses);
1.772 raeburn 7525: my $ok_response = 0;
7526: my $response;
7527: while (@homeservers > 0 && $ok_response == 0) {
7528: my $server = shift(@homeservers);
7529: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
7530: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
7531: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 7532: split(/:/,$response);
1.772 raeburn 7533: %{$codes} = (%{$codes},&str2hash($codes_str));
7534: push(@{$codetitles},&str2array($codetitles_str));
7535: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
7536: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
7537: $ok_response = 1;
7538: }
7539: }
7540: if ($ok_response) {
1.521 raeburn 7541: return 'ok';
1.772 raeburn 7542: } else {
7543: return $response;
1.521 raeburn 7544: }
7545: }
7546:
1.792 raeburn 7547: sub auto_instcode_defaults {
7548: my ($domain,$returnhash,$code_order) = @_;
7549: my @homeservers;
1.841 albertel 7550:
7551: my %servers = &get_servers($domain,'library');
7552: foreach my $tryserver (keys(%servers)) {
7553: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7554: push(@homeservers,$tryserver);
7555: }
1.792 raeburn 7556: }
1.841 albertel 7557:
1.792 raeburn 7558: my $response;
1.841 albertel 7559: foreach my $server (@homeservers) {
1.792 raeburn 7560: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 7561: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
7562:
7563: foreach my $pair (split(/\&/,$response)) {
7564: my ($name,$value)=split(/\=/,$pair);
7565: if ($name eq 'code_order') {
7566: @{$code_order} = split(/\&/,&unescape($value));
7567: } else {
7568: $returnhash->{&unescape($name)}=&unescape($value);
7569: }
7570: }
7571: return 'ok';
1.792 raeburn 7572: }
1.841 albertel 7573:
7574: return $response;
1.1003 raeburn 7575: }
7576:
7577: sub auto_possible_instcodes {
1.1007 raeburn 7578: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
7579: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
7580: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
7581: return;
7582: }
1.1003 raeburn 7583: my (@homeservers,$uhome);
7584: if (defined(&domain($domain,'primary'))) {
7585: $uhome=&domain($domain,'primary');
7586: push(@homeservers,&domain($domain,'primary'));
7587: } else {
7588: my %servers = &get_servers($domain,'library');
7589: foreach my $tryserver (keys(%servers)) {
7590: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7591: push(@homeservers,$tryserver);
7592: }
7593: }
7594: }
7595: my $response;
7596: foreach my $server (@homeservers) {
7597: $response=&reply('autopossibleinstcodes:'.$domain,$server);
7598: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 7599: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
7600: split(':',$response);
7601: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
7602: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 7603: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 7604: my ($name,$value)=split('=',$item);
7605: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7606: }
7607: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 7608: my ($name,$value)=split('=',$item);
7609: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7610: }
7611: return 'ok';
7612: }
7613: return $response;
7614: }
1.792 raeburn 7615:
1.1010 raeburn 7616: sub auto_courserequest_checks {
7617: my ($dom) = @_;
1.1020 raeburn 7618: my ($homeserver,%validations);
7619: if ($dom =~ /^$match_domain$/) {
7620: $homeserver = &domain($dom,'primary');
7621: }
7622: unless ($homeserver eq 'no_host') {
7623: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
7624: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7625: my @items = split(/&/,$response);
7626: foreach my $item (@items) {
7627: my ($key,$value) = split('=',$item);
7628: $validations{&unescape($key)} = &thaw_unescape($value);
7629: }
7630: }
7631: }
1.1010 raeburn 7632: return %validations;
7633: }
7634:
1.1020 raeburn 7635: sub auto_courserequest_validation {
7636: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
7637: my ($homeserver,$response);
7638: if ($dom =~ /^$match_domain$/) {
7639: $homeserver = &domain($dom,'primary');
7640: }
7641: unless ($homeserver eq 'no_host') {
1.1021 raeburn 7642:
1.1020 raeburn 7643: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 7644: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 7645: ':'.&escape($instcode).':'.&escape($instseclist),
7646: $homeserver));
7647: }
7648: return $response;
7649: }
7650:
1.777 albertel 7651: sub auto_validate_class_sec {
1.918 raeburn 7652: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 7653: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 7654: my $ownerlist;
7655: if (ref($owners) eq 'ARRAY') {
7656: $ownerlist = join(',',@{$owners});
7657: } else {
7658: $ownerlist = $owners;
7659: }
1.773 raeburn 7660: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 7661: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 7662: return $response;
7663: }
7664:
1.679 raeburn 7665: # ------------------------------------------------------- Course Group routines
7666:
7667: sub get_coursegroups {
1.809 raeburn 7668: my ($cdom,$cnum,$group,$namespace) = @_;
7669: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 7670: }
7671:
1.679 raeburn 7672: sub modify_coursegroup {
7673: my ($cdom,$cnum,$groupsettings) = @_;
7674: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
7675: }
7676:
1.809 raeburn 7677: sub toggle_coursegroup_status {
7678: my ($cdom,$cnum,$group,$action) = @_;
7679: my ($from_namespace,$to_namespace);
7680: if ($action eq 'delete') {
7681: $from_namespace = 'coursegroups';
7682: $to_namespace = 'deleted_groups';
7683: } else {
7684: $from_namespace = 'deleted_groups';
7685: $to_namespace = 'coursegroups';
7686: }
7687: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 7688: if (my $tmp = &error(%curr_group)) {
7689: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
7690: return ('read error',$tmp);
7691: } else {
7692: my %savedsettings = %curr_group;
1.809 raeburn 7693: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 7694: my $deloutcome;
7695: if ($result eq 'ok') {
1.809 raeburn 7696: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 7697: } else {
7698: return ('write error',$result);
7699: }
7700: if ($deloutcome eq 'ok') {
7701: return 'ok';
7702: } else {
7703: return ('delete error',$deloutcome);
7704: }
7705: }
7706: }
7707:
1.679 raeburn 7708: sub modify_group_roles {
1.957 raeburn 7709: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 7710: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
7711: my $role = 'gr/'.&escape($userprivs);
7712: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 7713: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 7714: if ($result eq 'ok') {
7715: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
7716: }
1.679 raeburn 7717: return $result;
7718: }
7719:
7720: sub modify_coursegroup_membership {
7721: my ($cdom,$cnum,$membership) = @_;
7722: my $result = &put('groupmembership',$membership,$cdom,$cnum);
7723: return $result;
7724: }
7725:
1.682 raeburn 7726: sub get_active_groups {
7727: my ($udom,$uname,$cdom,$cnum) = @_;
7728: my $now = time;
7729: my %groups = ();
7730: foreach my $key (keys(%env)) {
1.811 albertel 7731: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 7732: my ($start,$end) = split(/\./,$env{$key});
7733: if (($end!=0) && ($end<$now)) { next; }
7734: if (($start!=0) && ($start>$now)) { next; }
7735: if ($1 eq $cdom && $2 eq $cnum) {
7736: $groups{$3} = $env{$key} ;
7737: }
7738: }
7739: }
7740: return %groups;
7741: }
7742:
1.683 raeburn 7743: sub get_group_membership {
7744: my ($cdom,$cnum,$group) = @_;
7745: return(&dump('groupmembership',$cdom,$cnum,$group));
7746: }
7747:
7748: sub get_users_groups {
7749: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 7750: my @usersgroups;
1.683 raeburn 7751: my $cachetime=1800;
7752:
7753: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 7754: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
7755: if (defined($cached)) {
1.734 albertel 7756: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 7757: } else {
7758: $grouplist = '';
1.816 raeburn 7759: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 7760: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 7761: my $access_end = $env{'course.'.$courseid.
7762: '.default_enrollment_end_date'};
7763: my $now = time;
7764: foreach my $key (keys(%roleshash)) {
7765: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
7766: my $group = $1;
7767: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
7768: my $start = $2;
7769: my $end = $1;
7770: if ($start == -1) { next; } # deleted from group
7771: if (($start!=0) && ($start>$now)) { next; }
7772: if (($end!=0) && ($end<$now)) {
7773: if ($access_end && $access_end < $now) {
7774: if ($access_end - $end < 86400) {
7775: push(@usersgroups,$group);
1.733 raeburn 7776: }
7777: }
1.817 raeburn 7778: next;
1.733 raeburn 7779: }
1.817 raeburn 7780: push(@usersgroups,$group);
1.683 raeburn 7781: }
7782: }
7783: }
1.817 raeburn 7784: @usersgroups = &sort_course_groups($courseid,@usersgroups);
7785: $grouplist = join(':',@usersgroups);
7786: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 7787: }
1.733 raeburn 7788: return @usersgroups;
1.683 raeburn 7789: }
7790:
7791: sub devalidate_getgroups_cache {
7792: my ($udom,$uname,$cdom,$cnum)=@_;
7793: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 7794:
1.683 raeburn 7795: my $hashid="$udom:$uname:$courseid";
7796: &devalidate_cache_new('getgroups',$hashid);
7797: }
7798:
1.12 www 7799: # ------------------------------------------------------------------ Plain Text
7800:
7801: sub plaintext {
1.988 raeburn 7802: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 7803: if ($short =~ m{^cr/}) {
1.758 albertel 7804: return (split('/',$short))[-1];
7805: }
1.742 raeburn 7806: if (!defined($cid)) {
7807: $cid = $env{'request.course.id'};
7808: }
7809: my %rolenames = (
1.1008 raeburn 7810: Course => 'std',
7811: Community => 'alt1',
1.742 raeburn 7812: );
1.1037 raeburn 7813: if ($cid ne '') {
7814: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
7815: unless ($forcedefault) {
7816: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
7817: &Apache::lonlocal::mt_escape(\$roletext);
7818: return &Apache::lonlocal::mt($roletext);
7819: }
7820: }
7821: }
7822: if ((defined($type)) && (defined($rolenames{$type})) &&
7823: (defined($rolenames{$type})) &&
7824: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 7825: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 7826: } elsif ($cid ne '') {
7827: my $crstype = $env{'course.'.$cid.'.type'};
7828: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
7829: (defined($prp{$short}{$rolenames{$crstype}}))) {
7830: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
7831: }
1.742 raeburn 7832: }
1.1037 raeburn 7833: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 7834: }
7835:
7836: # ----------------------------------------------------------------- Assign Role
7837:
7838: sub assignrole {
1.957 raeburn 7839: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
7840: $context)=@_;
1.21 www 7841: my $mrole;
7842: if ($role =~ /^cr\//) {
1.393 www 7843: my $cwosec=$url;
1.811 albertel 7844: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 7845: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 7846: my $refused = 1;
7847: if ($context eq 'requestcourses') {
7848: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
7849: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
7850: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
7851: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7852: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7853: if ($crsenv{'internal.courseowner'} eq
7854: $env{'user.name'}.':'.$env{'user.domain'}) {
7855: $refused = '';
7856: }
7857: }
7858: }
7859: }
7860: }
7861: if ($refused) {
7862: &logthis('Refused custom assignrole: '.
7863: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
7864: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
7865: return 'refused';
7866: }
1.104 www 7867: }
1.21 www 7868: $mrole='cr';
1.678 raeburn 7869: } elsif ($role =~ /^gr\//) {
7870: my $cwogrp=$url;
1.811 albertel 7871: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 7872: unless (&allowed('mdg',$cwogrp)) {
7873: &logthis('Refused group assignrole: '.
7874: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
7875: $env{'user.name'}.' at '.$env{'user.domain'});
7876: return 'refused';
7877: }
7878: $mrole='gr';
1.21 www 7879: } else {
1.82 www 7880: my $cwosec=$url;
1.811 albertel 7881: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 7882: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
7883: my $refused;
7884: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
7885: if (!(&allowed('c'.$role,$url))) {
7886: $refused = 1;
7887: }
7888: } else {
7889: $refused = 1;
7890: }
1.947 raeburn 7891: if ($refused) {
1.1045 raeburn 7892: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7893: if (!$selfenroll && $context eq 'course') {
7894: my %crsenv;
7895: if ($role eq 'cc' || $role eq 'co') {
7896: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7897: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
7898: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
7899: if ($crsenv{'internal.courseowner'} eq
7900: $env{'user.name'}.':'.$env{'user.domain'}) {
7901: $refused = '';
7902: }
7903: }
7904: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
7905: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
7906: if ($crsenv{'internal.courseowner'} eq
7907: $env{'user.name'}.':'.$env{'user.domain'}) {
7908: $refused = '';
7909: }
7910: }
7911: }
7912: }
7913: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 7914: $refused = '';
1.1017 raeburn 7915: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 7916: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 7917: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 7918: my $wrongcc;
7919: if ($cnum =~ /^$match_community$/) {
7920: $wrongcc = 1 if ($role eq 'cc');
7921: } else {
7922: $wrongcc = 1 if ($role eq 'co');
7923: }
7924: unless ($wrongcc) {
7925: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7926: if ($crsenv{'internal.courseowner'} eq
7927: $env{'user.name'}.':'.$env{'user.domain'}) {
7928: $refused = '';
7929: }
1.1017 raeburn 7930: }
7931: }
1.1172.2.9 raeburn 7932: } elsif ($context eq 'requestauthor') {
7933: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
7934: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
7935: if ($env{'environment.requestauthor'} eq 'automatic') {
7936: $refused = '';
7937: } else {
7938: my %domdefaults = &get_domain_defaults($udom);
7939: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
7940: my $checkbystatus;
7941: if ($env{'user.adv'}) {
7942: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
7943: if ($disposition eq 'automatic') {
7944: $refused = '';
7945: } elsif ($disposition eq '') {
7946: $checkbystatus = 1;
7947: }
7948: } else {
7949: $checkbystatus = 1;
7950: }
7951: if ($checkbystatus) {
7952: if ($env{'environment.inststatus'}) {
7953: my @inststatuses = split(/,/,$env{'environment.inststatus'});
7954: foreach my $type (@inststatuses) {
7955: if (($type ne '') &&
7956: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
7957: $refused = '';
7958: }
7959: }
7960: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
7961: $refused = '';
7962: }
7963: }
7964: }
7965: }
7966: }
1.1017 raeburn 7967: }
7968: if ($refused) {
1.947 raeburn 7969: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
7970: ' '.$role.' '.$end.' '.$start.' by '.
7971: $env{'user.name'}.' at '.$env{'user.domain'});
7972: return 'refused';
7973: }
1.932 raeburn 7974: }
1.1131 raeburn 7975: } elsif ($role eq 'au') {
7976: if ($url ne '/'.$udom.'/') {
7977: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
7978: ' to assign author role for '.$uname.':'.$udom.
7979: ' in domain: '.$url.' refused (wrong domain).');
7980: return 'refused';
7981: }
1.104 www 7982: }
1.21 www 7983: $mrole=$role;
7984: }
1.620 albertel 7985: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7986: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 7987: if ($end) { $command.='_'.$end; }
1.21 www 7988: if ($start) {
7989: if ($end) {
1.81 www 7990: $command.='_'.$start;
1.21 www 7991: } else {
1.81 www 7992: $command.='_0_'.$start;
1.21 www 7993: }
7994: }
1.739 raeburn 7995: my $origstart = $start;
7996: my $origend = $end;
1.957 raeburn 7997: my $delflag;
1.357 www 7998: # actually delete
7999: if ($deleteflag) {
1.373 www 8000: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 8001: # modify command to delete the role
1.620 albertel 8002: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 8003: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 8004: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 8005: # set start and finish to negative values for userrolelog
8006: $start=-1;
8007: $end=-1;
1.957 raeburn 8008: $delflag = 1;
1.357 www 8009: }
8010: }
8011: # send command
1.349 www 8012: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 8013: # log new user role if status is ok
1.349 www 8014: if ($answer eq 'ok') {
1.663 raeburn 8015: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1172.2.9 raeburn 8016: if (($role eq 'cc') || ($role eq 'in') ||
8017: ($role eq 'ep') || ($role eq 'ad') ||
8018: ($role eq 'ta') || ($role eq 'st') ||
8019: ($role=~/^cr/) || ($role eq 'gr') ||
8020: ($role eq 'co')) {
1.1172.2.13 raeburn 8021: # for course roles, perform group memberships changes triggered by role change.
8022: unless ($role =~ /^gr/) {
8023: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
8024: $origstart,$selfenroll,$context);
8025: }
1.1172.2.9 raeburn 8026: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8027: $selfenroll,$context);
8028: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
8029: ($role eq 'au') || ($role eq 'dc')) {
8030: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8031: $context);
8032: } elsif (($role eq 'ca') || ($role eq 'aa')) {
8033: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8034: $context);
8035: }
1.1053 raeburn 8036: if ($role eq 'cc') {
8037: &autoupdate_coowners($url,$end,$start,$uname,$udom);
8038: }
1.349 www 8039: }
8040: return $answer;
1.169 harris41 8041: }
8042:
1.1053 raeburn 8043: sub autoupdate_coowners {
8044: my ($url,$end,$start,$uname,$udom) = @_;
8045: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
8046: if (($cdom ne '') && ($cnum ne '')) {
8047: my $now = time;
8048: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
8049: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
8050: my %coursehash = &coursedescription($cdom.'_'.$cnum);
8051: my $instcode = $coursehash{'internal.coursecode'};
8052: if ($instcode ne '') {
1.1056 raeburn 8053: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
8054: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 8055: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 8056: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
8057: if ($result eq 'valid') {
8058: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 8059: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8060: push(@newcoowners,$coowner);
8061: }
8062: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
8063: push(@newcoowners,$uname.':'.$udom);
8064: }
8065: @newcoowners = sort(@newcoowners);
8066: } else {
8067: push(@newcoowners,$uname.':'.$udom);
8068: }
8069: } else {
8070: if ($coursehash{'internal.co-owners'}) {
8071: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8072: unless ($coowner eq $uname.':'.$udom) {
8073: push(@newcoowners,$coowner);
8074: }
8075: }
8076: unless (@newcoowners > 0) {
8077: $delcoowners = 1;
8078: $coowners = '';
8079: }
8080: }
8081: }
8082: if (@newcoowners || $delcoowners) {
8083: &store_coowners($cdom,$cnum,$coursehash{'home'},
8084: $delcoowners,@newcoowners);
8085: }
8086: }
8087: }
8088: }
8089: }
8090: }
8091: }
8092:
8093: sub store_coowners {
8094: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
8095: my $cid = $cdom.'_'.$cnum;
8096: my ($coowners,$delresult,$putresult);
8097: if (@newcoowners) {
8098: $coowners = join(',',@newcoowners);
8099: my %coownershash = (
8100: 'internal.co-owners' => $coowners,
8101: );
8102: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
8103: if ($putresult eq 'ok') {
8104: if ($env{'course.'.$cid.'.num'} eq $cnum) {
8105: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
8106: }
8107: }
8108: }
8109: if ($delcoowners) {
8110: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
8111: if ($delresult eq 'ok') {
8112: if ($env{'course.'.$cid.'.internal.co-owners'}) {
8113: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
8114: }
8115: }
8116: }
8117: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
8118: my %crsinfo =
8119: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
8120: if (ref($crsinfo{$cid}) eq 'HASH') {
8121: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
8122: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
8123: }
8124: }
8125: }
8126:
1.169 harris41 8127: # -------------------------------------------------- Modify user authentication
1.197 www 8128: # Overrides without validation
8129:
1.169 harris41 8130: sub modifyuserauth {
8131: my ($udom,$uname,$umode,$upass)=@_;
8132: my $uhome=&homeserver($uname,$udom);
1.197 www 8133: unless (&allowed('mau',$udom)) { return 'refused'; }
8134: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 8135: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8136: ' in domain '.$env{'request.role.domain'});
1.169 harris41 8137: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
8138: &escape($upass),$uhome);
1.620 albertel 8139: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 8140: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
8141: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
8142: &log($udom,,$uname,$uhome,
1.620 albertel 8143: 'Authentication changed by '.$env{'user.domain'}.', '.
8144: $env{'user.name'}.', '.$umode.
1.197 www 8145: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 8146: unless ($reply eq 'ok') {
1.197 www 8147: &logthis('Authentication mode error: '.$reply);
1.169 harris41 8148: return 'error: '.$reply;
8149: }
1.170 harris41 8150: return 'ok';
1.80 www 8151: }
8152:
1.81 www 8153: # --------------------------------------------------------------- Modify a user
1.80 www 8154:
1.81 www 8155: sub modifyuser {
1.206 matthew 8156: my ($udom, $uname, $uid,
8157: $umode, $upass, $first,
8158: $middle, $last, $gene,
1.1058 raeburn 8159: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 8160: $udom= &LONCAPA::clean_domain($udom);
8161: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 8162: my $showcandelete = 'none';
8163: if (ref($candelete) eq 'ARRAY') {
8164: if (@{$candelete} > 0) {
8165: $showcandelete = join(', ',@{$candelete});
8166: }
8167: }
1.81 www 8168: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 8169: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 8170: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 8171: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
8172: ' desiredhome not specified').
1.620 albertel 8173: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8174: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 8175: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 8176: my $newuser;
8177: if ($uhome eq 'no_host') {
8178: $newuser = 1;
8179: }
1.80 www 8180: # ----------------------------------------------------------------- Create User
1.406 albertel 8181: if (($uhome eq 'no_host') &&
8182: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 8183: my $unhome='';
1.844 albertel 8184: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 8185: $unhome = $desiredhome;
1.620 albertel 8186: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
8187: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 8188: } else { # load balancing routine for determining $unhome
1.81 www 8189: my $loadm=10000000;
1.841 albertel 8190: my %servers = &get_servers($udom,'library');
8191: foreach my $tryserver (keys(%servers)) {
8192: my $answer=reply('load',$tryserver);
8193: if (($answer=~/\d+/) && ($answer<$loadm)) {
8194: $loadm=$answer;
8195: $unhome=$tryserver;
8196: }
1.80 www 8197: }
8198: }
8199: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 8200: return 'error: unable to find a home server for '.$uname.
8201: ' in domain '.$udom;
1.80 www 8202: }
8203: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
8204: &escape($upass),$unhome);
8205: unless ($reply eq 'ok') {
8206: return 'error: '.$reply;
8207: }
1.230 stredwic 8208: $uhome=&homeserver($uname,$udom,'true');
1.80 www 8209: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 8210: return 'error: unable verify users home machine.';
1.80 www 8211: }
1.209 matthew 8212: } # End of creation of new user
1.80 www 8213: # ---------------------------------------------------------------------- Add ID
8214: if ($uid) {
8215: $uid=~tr/A-Z/a-z/;
8216: my %uidhash=&idrget($udom,$uname);
1.196 www 8217: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
8218: && (!$forceid)) {
1.80 www 8219: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 8220: return 'error: user id "'.$uid.'" does not match '.
8221: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 8222: }
8223: } else {
8224: &idput($udom,($uname => $uid));
8225: }
8226: }
8227: # -------------------------------------------------------------- Add names, etc
1.313 matthew 8228: my @tmp=&get('environment',
1.899 raeburn 8229: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 8230: 'permanentemail','inststatus'],
1.134 albertel 8231: $udom,$uname);
1.1075 raeburn 8232: my (%names,%oldnames);
1.313 matthew 8233: if ($tmp[0] =~ m/^error:.*/) {
8234: %names=();
8235: } else {
8236: %names = @tmp;
1.1075 raeburn 8237: %oldnames = %names;
1.313 matthew 8238: }
1.388 www 8239: #
1.1058 raeburn 8240: # If name, email and/or uid are blank (e.g., because an uploaded file
8241: # of users did not contain them), do not overwrite existing values
8242: # unless field is in $candelete array ref.
8243: #
8244:
8245: my @fields = ('firstname','middlename','lastname','generation',
8246: 'permanentemail','id');
8247: my %newvalues;
8248: if (ref($candelete) eq 'ARRAY') {
8249: foreach my $field (@fields) {
8250: if (grep(/^\Q$field\E$/,@{$candelete})) {
8251: if ($field eq 'firstname') {
8252: $names{$field} = $first;
8253: } elsif ($field eq 'middlename') {
8254: $names{$field} = $middle;
8255: } elsif ($field eq 'lastname') {
8256: $names{$field} = $last;
8257: } elsif ($field eq 'generation') {
8258: $names{$field} = $gene;
8259: } elsif ($field eq 'permanentemail') {
8260: $names{$field} = $email;
8261: } elsif ($field eq 'id') {
8262: $names{$field} = $uid;
8263: }
8264: }
8265: }
8266: }
1.388 www 8267: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 8268: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 8269: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 8270: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 8271: if ($email) {
8272: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 8273: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 8274: }
1.899 raeburn 8275: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 8276: if (defined($inststatus)) {
8277: $names{'inststatus'} = '';
8278: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
8279: if (ref($usertypes) eq 'HASH') {
8280: my @okstatuses;
8281: foreach my $item (split(/:/,$inststatus)) {
8282: if (defined($usertypes->{$item})) {
8283: push(@okstatuses,$item);
8284: }
8285: }
8286: if (@okstatuses) {
8287: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
8288: }
8289: }
8290: }
1.1075 raeburn 8291: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 8292: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 8293: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 8294: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
8295: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
8296: } else {
8297: $logmsg .= ' during self creation';
8298: }
1.1075 raeburn 8299: my $changed;
8300: if ($newuser) {
8301: $changed = 1;
8302: } else {
8303: foreach my $field (@fields) {
8304: if ($names{$field} ne $oldnames{$field}) {
8305: $changed = 1;
8306: last;
8307: }
8308: }
8309: }
8310: unless ($changed) {
8311: $logmsg = 'No changes in user information needed for: '.$logmsg;
8312: &logthis($logmsg);
8313: return 'ok';
8314: }
8315: my $reply = &put('environment', \%names, $udom,$uname);
8316: if ($reply ne 'ok') {
8317: return 'error: '.$reply;
8318: }
1.1087 raeburn 8319: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
8320: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
8321: }
1.1075 raeburn 8322: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
8323: &devalidate_cache_new('namescache',$uname.':'.$udom);
8324: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 8325: &logthis($logmsg);
1.134 albertel 8326: return 'ok';
1.80 www 8327: }
8328:
1.81 www 8329: # -------------------------------------------------------------- Modify student
1.80 www 8330:
1.81 www 8331: sub modifystudent {
8332: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 8333: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 8334: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 8335: if (!$cid) {
1.620 albertel 8336: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8337: return 'not_in_class';
8338: }
1.80 www 8339: }
8340: # --------------------------------------------------------------- Make the user
1.81 www 8341: my $reply=&modifyuser
1.209 matthew 8342: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 8343: $desiredhome,$email,$inststatus);
1.80 www 8344: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 8345: # This will cause &modify_student_enrollment to get the uid from the
8346: # students environment
8347: $uid = undef if (!$forceid);
1.455 albertel 8348: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 8349: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 8350: return $reply;
8351: }
8352:
8353: sub modify_student_enrollment {
1.957 raeburn 8354: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 8355: my ($cdom,$cnum,$chome);
8356: if (!$cid) {
1.620 albertel 8357: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8358: return 'not_in_class';
8359: }
1.620 albertel 8360: $cdom=$env{'course.'.$cid.'.domain'};
8361: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 8362: } else {
8363: ($cdom,$cnum)=split(/_/,$cid);
8364: }
1.620 albertel 8365: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 8366: if (!$chome) {
1.457 raeburn 8367: $chome=&homeserver($cnum,$cdom);
1.297 matthew 8368: }
1.455 albertel 8369: if (!$chome) { return 'unknown_course'; }
1.297 matthew 8370: # Make sure the user exists
1.81 www 8371: my $uhome=&homeserver($uname,$udom);
8372: if (($uhome eq '') || ($uhome eq 'no_host')) {
8373: return 'error: no such user';
8374: }
1.297 matthew 8375: # Get student data if we were not given enough information
8376: if (!defined($first) || $first eq '' ||
8377: !defined($last) || $last eq '' ||
8378: !defined($uid) || $uid eq '' ||
8379: !defined($middle) || $middle eq '' ||
8380: !defined($gene) || $gene eq '') {
1.294 matthew 8381: # They did not supply us with enough data to enroll the student, so
8382: # we need to pick up more information.
1.297 matthew 8383: my %tmp = &get('environment',
1.294 matthew 8384: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 8385: ,$udom,$uname);
8386:
1.800 albertel 8387: #foreach my $key (keys(%tmp)) {
8388: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 8389: #}
1.294 matthew 8390: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
8391: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
8392: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 8393: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 8394: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
8395: }
1.556 albertel 8396: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 8397: my $user = "$uname:$udom";
8398: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 8399: my $reply=cput('classlist',
1.1148 raeburn 8400: {$user =>
1.515 raeburn 8401: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 8402: $cdom,$cnum);
1.1148 raeburn 8403: if (($reply eq 'ok') || ($reply eq 'delayed')) {
8404: &devalidate_getsection_cache($udom,$uname,$cid);
8405: } else {
1.81 www 8406: return 'error: '.$reply;
8407: }
1.297 matthew 8408: # Add student role to user
1.83 www 8409: my $uurl='/'.$cid;
1.81 www 8410: $uurl=~s/\_/\//g;
8411: if ($usec) {
8412: $uurl.='/'.$usec;
8413: }
1.1148 raeburn 8414: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
8415: $selfenroll,$context);
8416: if ($result ne 'ok') {
8417: if ($old_entry{$user} ne '') {
8418: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
8419: } else {
8420: $reply = &del('classlist',[$user],$cdom,$cnum);
8421: }
8422: }
8423: return $result;
1.21 www 8424: }
8425:
1.556 albertel 8426: sub format_name {
8427: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
8428: my $name;
8429: if ($first ne 'lastname') {
8430: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
8431: } else {
8432: if ($lastname=~/\S/) {
8433: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
8434: $name=~s/\s+,/,/;
8435: } else {
8436: $name.= $firstname.' '.$middlename.' '.$generation;
8437: }
8438: }
8439: $name=~s/^\s+//;
8440: $name=~s/\s+$//;
8441: $name=~s/\s+/ /g;
8442: return $name;
8443: }
8444:
1.84 www 8445: # ------------------------------------------------- Write to course preferences
8446:
8447: sub writecoursepref {
8448: my ($courseid,%prefs)=@_;
8449: $courseid=~s/^\///;
8450: $courseid=~s/\_/\//g;
8451: my ($cdomain,$cnum)=split(/\//,$courseid);
8452: my $chome=homeserver($cnum,$cdomain);
8453: if (($chome eq '') || ($chome eq 'no_host')) {
8454: return 'error: no such course';
8455: }
8456: my $cstring='';
1.800 albertel 8457: foreach my $pref (keys(%prefs)) {
8458: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 8459: }
1.84 www 8460: $cstring=~s/\&$//;
8461: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
8462: }
8463:
8464: # ---------------------------------------------------------- Make/modify course
8465:
8466: sub createcourse {
1.741 raeburn 8467: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 8468: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 8469: $url=&declutter($url);
8470: my $cid='';
1.1028 raeburn 8471: if ($context eq 'requestcourses') {
8472: my $can_create = 0;
8473: my ($ownername,$ownerdom) = split(':',$course_owner);
8474: if ($udom eq $ownerdom) {
8475: if (&usertools_access($ownername,$ownerdom,$category,undef,
8476: $context)) {
8477: $can_create = 1;
8478: }
8479: } else {
8480: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
8481: $category);
8482: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
8483: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
8484: if (@curr > 0) {
8485: my @options = qw(approval validate autolimit);
8486: my $optregex = join('|',@options);
8487: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
8488: $can_create = 1;
8489: }
8490: }
8491: }
8492: }
8493: if ($can_create) {
8494: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
8495: unless (&allowed('ccc',$udom)) {
8496: return 'refused';
8497: }
1.1017 raeburn 8498: }
8499: } else {
8500: return 'refused';
8501: }
1.1028 raeburn 8502: } elsif (!&allowed('ccc',$udom)) {
8503: return 'refused';
1.84 www 8504: }
1.1011 raeburn 8505: # --------------------------------------------------------------- Get Unique ID
8506: my $uname;
8507: if ($cnum =~ /^$match_courseid$/) {
8508: my $chome=&homeserver($cnum,$udom,'true');
8509: if (($chome eq '') || ($chome eq 'no_host')) {
8510: $uname = $cnum;
8511: } else {
1.1038 raeburn 8512: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8513: }
8514: } else {
1.1038 raeburn 8515: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8516: }
8517: return $uname if ($uname =~ /^error/);
8518: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 8519: if (!defined($course_server)) {
8520: if (defined(&domain($udom,'primary'))) {
8521: $course_server = &domain($udom,'primary');
8522: } else {
8523: $course_server = $env{'user.home'};
8524: }
8525: }
8526: my %host_servers =
8527: &Apache::lonnet::get_servers($udom,'library');
8528: unless ($host_servers{$course_server}) {
8529: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 8530: }
1.84 www 8531: # ------------------------------------------------------------- Make the course
8532: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 8533: $course_server);
1.84 www 8534: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 8535: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 8536: if (($uhome eq '') || ($uhome eq 'no_host')) {
8537: return 'error: no such course';
8538: }
1.271 www 8539: # ----------------------------------------------------------------- Course made
1.516 raeburn 8540: # log existence
1.1029 raeburn 8541: my $now = time;
1.918 raeburn 8542: my $newcourse = {
8543: $udom.'_'.$uname => {
1.921 raeburn 8544: description => $description,
8545: inst_code => $inst_code,
8546: owner => $course_owner,
8547: type => $crstype,
1.1029 raeburn 8548: creator => $env{'user.name'}.':'.
8549: $env{'user.domain'},
8550: created => $now,
8551: context => $context,
1.918 raeburn 8552: },
8553: };
1.921 raeburn 8554: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 8555: # set toplevel url
1.271 www 8556: my $topurl=$url;
8557: unless ($nonstandard) {
8558: # ------------------------------------------ For standard courses, make top url
8559: my $mapurl=&clutter($url);
1.278 www 8560: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 8561: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 8562: <map>
8563: <resource id="1" type="start"></resource>
8564: <resource id="2" src="$mapurl"></resource>
8565: <resource id="3" type="finish"></resource>
8566: <link index="1" from="1" to="2"></link>
8567: <link index="2" from="2" to="3"></link>
8568: </map>
8569: ENDINITMAP
8570: $topurl=&declutter(
1.638 albertel 8571: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 8572: );
8573: }
8574: # ----------------------------------------------------------- Write preferences
1.84 www 8575: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 8576: ('description' => $description,
8577: 'url' => $topurl,
8578: 'internal.creator' => $env{'user.name'}.':'.
8579: $env{'user.domain'},
8580: 'internal.created' => $now,
8581: 'internal.creationcontext' => $context)
8582: );
1.84 www 8583: return '/'.$udom.'/'.$uname;
8584: }
8585:
1.1011 raeburn 8586: # ------------------------------------------------------------------- Create ID
8587: sub generate_coursenum {
1.1038 raeburn 8588: my ($udom,$crstype) = @_;
1.1011 raeburn 8589: my $domdesc = &domain($udom);
8590: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 8591: my $first;
8592: if ($crstype eq 'Community') {
8593: $first = '0';
8594: } else {
8595: $first = int(1+rand(9));
8596: }
8597: my $uname=$first.
1.1011 raeburn 8598: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8599: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8600: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8601: # ----------------------------------------------- Make sure that does not exist
8602: my $uhome=&homeserver($uname,$udom,'true');
8603: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 8604: if ($crstype eq 'Community') {
8605: $first = '0';
8606: } else {
8607: $first = int(1+rand(9));
8608: }
8609: $uname=$first.
1.1011 raeburn 8610: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8611: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8612: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8613: $uhome=&homeserver($uname,$udom,'true');
8614: unless (($uhome eq '') || ($uhome eq 'no_host')) {
8615: return 'error: unable to generate unique course-ID';
8616: }
8617: }
8618: return $uname;
8619: }
8620:
1.813 albertel 8621: sub is_course {
1.1167 droeschl 8622: my ($cdom, $cnum) = scalar(@_) == 1 ?
8623: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
8624:
8625: return unless $cdom and $cnum;
8626:
8627: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
8628: '.');
8629:
8630: return unless exists($courses{$cdom.'_'.$cnum});
8631: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 8632: }
8633:
1.1015 raeburn 8634: sub store_userdata {
8635: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 8636: my $result;
1.1016 raeburn 8637: if ($datakey ne '') {
1.1013 raeburn 8638: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 8639: if ($udom eq '' || $uname eq '') {
8640: $udom = $env{'user.domain'};
8641: $uname = $env{'user.name'};
8642: }
8643: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 8644: if (($uhome eq '') || ($uhome eq 'no_host')) {
8645: $result = 'error: no_host';
8646: } else {
8647: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
8648: $storehash->{'host'} = $perlvar{'lonHostID'};
8649:
8650: my $namevalue='';
8651: foreach my $key (keys(%{$storehash})) {
8652: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
8653: }
8654: $namevalue=~s/\&$//;
1.1105 raeburn 8655: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
8656: $namevalue,$uhome);
1.1013 raeburn 8657: }
8658: } else {
8659: $result = 'error: data to store was not a hash reference';
8660: }
8661: } else {
8662: $result= 'error: invalid requestkey';
8663: }
8664: return $result;
8665: }
8666:
1.21 www 8667: # ---------------------------------------------------------- Assign Custom Role
8668:
8669: sub assigncustomrole {
1.957 raeburn 8670: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8671: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 8672: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 8673: }
8674:
8675: # ----------------------------------------------------------------- Revoke Role
8676:
8677: sub revokerole {
1.957 raeburn 8678: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8679: my $now=time;
1.965 raeburn 8680: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 8681: }
8682:
8683: # ---------------------------------------------------------- Revoke Custom Role
8684:
8685: sub revokecustomrole {
1.957 raeburn 8686: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8687: my $now=time;
1.357 www 8688: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 8689: $deleteflag,$selfenroll,$context);
1.17 www 8690: }
8691:
1.533 banghart 8692: # ------------------------------------------------------------ Disk usage
1.535 albertel 8693: sub diskusage {
1.955 raeburn 8694: my ($udom,$uname,$directorypath,$getpropath)=@_;
8695: $directorypath =~ s/\/$//;
8696: my $listing=&reply('du2:'.&escape($directorypath).':'
8697: .&escape($getpropath).':'.&escape($uname).':'
8698: .&escape($udom),homeserver($uname,$udom));
8699: if ($listing eq 'unknown_cmd') {
8700: if ($getpropath) {
8701: $directorypath = &propath($udom,$uname).'/'.$directorypath;
8702: }
8703: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
8704: }
1.514 albertel 8705: return $listing;
1.512 banghart 8706: }
8707:
1.566 banghart 8708: sub is_locked {
1.1096 raeburn 8709: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 8710: my @check;
8711: my $is_locked;
1.1093 raeburn 8712: push (@check,$file_name);
1.613 albertel 8713: my %locked = &get('file_permissions',\@check,
1.620 albertel 8714: $env{'user.domain'},$env{'user.name'});
1.615 albertel 8715: my ($tmp)=keys(%locked);
8716: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 8717:
1.566 banghart 8718: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 8719: $is_locked = 'false';
8720: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 8721: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 8722: $is_locked = 'true';
1.1096 raeburn 8723: if (ref($which) eq 'ARRAY') {
8724: push(@{$which},$entry);
8725: } else {
8726: last;
8727: }
1.745 raeburn 8728: }
8729: }
1.566 banghart 8730: } else {
8731: $is_locked = 'false';
8732: }
1.1093 raeburn 8733: return $is_locked;
1.566 banghart 8734: }
8735:
1.759 albertel 8736: sub declutter_portfile {
8737: my ($file) = @_;
1.833 albertel 8738: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 8739: return $file;
8740: }
8741:
1.559 banghart 8742: # ------------------------------------------------------------- Mark as Read Only
8743:
8744: sub mark_as_readonly {
8745: my ($domain,$user,$files,$what) = @_;
1.613 albertel 8746: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8747: my ($tmp)=keys(%current_permissions);
8748: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 8749: foreach my $file (@{$files}) {
1.759 albertel 8750: $file = &declutter_portfile($file);
1.561 banghart 8751: push(@{$current_permissions{$file}},$what);
1.559 banghart 8752: }
1.613 albertel 8753: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 8754: return;
8755: }
8756:
1.572 banghart 8757: # ------------------------------------------------------------Save Selected Files
8758:
8759: sub save_selected_files {
8760: my ($user, $path, @files) = @_;
8761: my $filename = $user."savedfiles";
1.573 banghart 8762: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 8763: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 8764: foreach my $file (@files) {
1.620 albertel 8765: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 8766: }
8767: foreach my $file (@other_files) {
1.574 banghart 8768: print (OUT $file."\n");
1.572 banghart 8769: }
1.574 banghart 8770: close (OUT);
1.572 banghart 8771: return 'ok';
8772: }
8773:
1.574 banghart 8774: sub clear_selected_files {
8775: my ($user) = @_;
8776: my $filename = $user."savedfiles";
1.1117 foxr 8777: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 8778: print (OUT undef);
8779: close (OUT);
8780: return ("ok");
8781: }
8782:
1.572 banghart 8783: sub files_in_path {
8784: my ($user, $path) = @_;
8785: my $filename = $user."savedfiles";
8786: my %return_files;
1.1117 foxr 8787: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 8788: while (my $line_in = <IN>) {
1.574 banghart 8789: chomp ($line_in);
8790: my @paths_and_file = split (m!/!, $line_in);
8791: my $file_part = pop (@paths_and_file);
8792: my $path_part = join ('/', @paths_and_file);
1.573 banghart 8793: $path_part.='/';
8794: my $path_and_file = $path_part.$file_part;
8795: if ($path_part eq $path) {
8796: $return_files{$file_part}= 'selected';
8797: }
8798: }
1.574 banghart 8799: close (IN);
8800: return (\%return_files);
1.572 banghart 8801: }
8802:
8803: # called in portfolio select mode, to show files selected NOT in current directory
8804: sub files_not_in_path {
8805: my ($user, $path) = @_;
8806: my $filename = $user."savedfiles";
8807: my @return_files;
8808: my $path_part;
1.1117 foxr 8809: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 8810: while (my $line = <IN>) {
1.572 banghart 8811: #ok, I know it's clunky, but I want it to work
1.800 albertel 8812: my @paths_and_file = split(m|/|, $line);
8813: my $file_part = pop(@paths_and_file);
8814: chomp($file_part);
8815: my $path_part = join('/', @paths_and_file);
1.572 banghart 8816: $path_part .= '/';
8817: my $path_and_file = $path_part.$file_part;
8818: if ($path_part ne $path) {
1.800 albertel 8819: push(@return_files, ($path_and_file));
1.572 banghart 8820: }
8821: }
1.800 albertel 8822: close(OUT);
1.574 banghart 8823: return (@return_files);
1.572 banghart 8824: }
8825:
1.745 raeburn 8826: #----------------------------------------------Get portfolio file permissions
1.629 banghart 8827:
1.745 raeburn 8828: sub get_portfile_permissions {
8829: my ($domain,$user) = @_;
1.613 albertel 8830: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8831: my ($tmp)=keys(%current_permissions);
8832: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 8833: return \%current_permissions;
8834: }
8835:
8836: #---------------------------------------------Get portfolio file access controls
8837:
1.749 raeburn 8838: sub get_access_controls {
1.745 raeburn 8839: my ($current_permissions,$group,$file) = @_;
1.769 albertel 8840: my %access;
8841: my $real_file = $file;
8842: $file =~ s/\.meta$//;
1.745 raeburn 8843: if (defined($file)) {
1.749 raeburn 8844: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
8845: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 8846: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 8847: }
8848: }
1.745 raeburn 8849: } else {
1.749 raeburn 8850: foreach my $key (keys(%{$current_permissions})) {
8851: if ($key =~ /\0accesscontrol$/) {
8852: if (defined($group)) {
8853: if ($key !~ m-^\Q$group\E/-) {
8854: next;
8855: }
8856: }
8857: my ($fullpath) = split(/\0/,$key);
8858: if (ref($$current_permissions{$key}) eq 'HASH') {
8859: foreach my $control (keys(%{$$current_permissions{$key}})) {
8860: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
8861: }
8862: }
8863: }
8864: }
8865: }
8866: return %access;
8867: }
8868:
8869: sub modify_access_controls {
8870: my ($file_name,$changes,$domain,$user)=@_;
8871: my ($outcome,$deloutcome);
8872: my %store_permissions;
8873: my %new_values;
8874: my %new_control;
8875: my %translation;
8876: my @deletions = ();
8877: my $now = time;
8878: if (exists($$changes{'activate'})) {
8879: if (ref($$changes{'activate'}) eq 'HASH') {
8880: my @newitems = sort(keys(%{$$changes{'activate'}}));
8881: my $numnew = scalar(@newitems);
8882: for (my $i=0; $i<$numnew; $i++) {
8883: my $newkey = $newitems[$i];
8884: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 8885: if ($newkey =~ /^\d+:/) {
8886: $newkey =~ s/^(\d+)/$newid/;
8887: $translation{$1} = $newid;
8888: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
8889: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
8890: $translation{$1} = $newid;
8891: }
1.749 raeburn 8892: $new_values{$file_name."\0".$newkey} =
8893: $$changes{'activate'}{$newitems[$i]};
8894: $new_control{$newkey} = $now;
8895: }
8896: }
8897: }
8898: my %todelete;
8899: my %changed_items;
8900: foreach my $action ('delete','update') {
8901: if (exists($$changes{$action})) {
8902: if (ref($$changes{$action}) eq 'HASH') {
8903: foreach my $key (keys(%{$$changes{$action}})) {
8904: my ($itemnum) = ($key =~ /^([^:]+):/);
8905: if ($action eq 'delete') {
8906: $todelete{$itemnum} = 1;
8907: } else {
8908: $changed_items{$itemnum} = $key;
8909: }
8910: }
1.745 raeburn 8911: }
8912: }
1.749 raeburn 8913: }
8914: # get lock on access controls for file.
8915: my $lockhash = {
8916: $file_name."\0".'locked_access_records' => $env{'user.name'}.
8917: ':'.$env{'user.domain'},
8918: };
8919: my $tries = 0;
8920: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8921:
8922: while (($gotlock ne 'ok') && $tries <3) {
8923: $tries ++;
8924: sleep 1;
8925: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8926: }
8927: if ($gotlock eq 'ok') {
8928: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
8929: my ($tmp)=keys(%curr_permissions);
8930: if ($tmp=~/^error:/) { undef(%curr_permissions); }
8931: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
8932: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
8933: if (ref($curr_controls) eq 'HASH') {
8934: foreach my $control_item (keys(%{$curr_controls})) {
8935: my ($itemnum) = ($control_item =~ /^([^:]+):/);
8936: if (defined($todelete{$itemnum})) {
8937: push(@deletions,$file_name."\0".$control_item);
8938: } else {
8939: if (defined($changed_items{$itemnum})) {
8940: $new_control{$changed_items{$itemnum}} = $now;
8941: push(@deletions,$file_name."\0".$control_item);
8942: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
8943: } else {
8944: $new_control{$control_item} = $$curr_controls{$control_item};
8945: }
8946: }
1.745 raeburn 8947: }
8948: }
8949: }
1.970 raeburn 8950: my ($group);
8951: if (&is_course($domain,$user)) {
8952: ($group,my $file) = split(/\//,$file_name,2);
8953: }
1.749 raeburn 8954: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
8955: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
8956: $outcome = &put('file_permissions',\%new_values,$domain,$user);
8957: # remove lock
8958: my @del_lock = ($file_name."\0".'locked_access_records');
8959: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 8960: my $sqlresult =
1.970 raeburn 8961: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 8962: $group);
1.749 raeburn 8963: } else {
8964: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 8965: }
1.749 raeburn 8966: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 8967: }
8968:
1.827 raeburn 8969: sub make_public_indefinitely {
8970: my ($requrl) = @_;
8971: my $now = time;
8972: my $action = 'activate';
8973: my $aclnum = 0;
8974: if (&is_portfolio_url($requrl)) {
8975: my (undef,$udom,$unum,$file_name,$group) =
8976: &parse_portfolio_url($requrl);
8977: my $current_perms = &get_portfile_permissions($udom,$unum);
8978: my %access_controls = &get_access_controls($current_perms,
8979: $group,$file_name);
8980: foreach my $key (keys(%{$access_controls{$file_name}})) {
8981: my ($num,$scope,$end,$start) =
8982: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
8983: if ($scope eq 'public') {
8984: if ($start <= $now && $end == 0) {
8985: $action = 'none';
8986: } else {
8987: $action = 'update';
8988: $aclnum = $num;
8989: }
8990: last;
8991: }
8992: }
8993: if ($action eq 'none') {
8994: return 'ok';
8995: } else {
8996: my %changes;
8997: my $newend = 0;
8998: my $newstart = $now;
8999: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
9000: $changes{$action}{$newkey} = {
9001: type => 'public',
9002: time => {
9003: start => $newstart,
9004: end => $newend,
9005: },
9006: };
9007: my ($outcome,$deloutcome,$new_values,$translation) =
9008: &modify_access_controls($file_name,\%changes,$udom,$unum);
9009: return $outcome;
9010: }
9011: } else {
9012: return 'invalid';
9013: }
9014: }
9015:
1.745 raeburn 9016: #------------------------------------------------------Get Marked as Read Only
9017:
9018: sub get_marked_as_readonly {
9019: my ($domain,$user,$what,$group) = @_;
9020: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 9021: my @readonly_files;
1.629 banghart 9022: my $cmp1=$what;
9023: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 9024: while (my ($file_name,$value) = each(%{$current_permissions})) {
9025: if (defined($group)) {
9026: if ($file_name !~ m-^\Q$group\E/-) {
9027: next;
9028: }
9029: }
1.561 banghart 9030: if (ref($value) eq "ARRAY"){
9031: foreach my $stored_what (@{$value}) {
1.629 banghart 9032: my $cmp2=$stored_what;
1.759 albertel 9033: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 9034: $cmp2=join('',@{$stored_what});
1.745 raeburn 9035: }
1.629 banghart 9036: if ($cmp1 eq $cmp2) {
1.561 banghart 9037: push(@readonly_files, $file_name);
1.745 raeburn 9038: last;
1.563 banghart 9039: } elsif (!defined($what)) {
9040: push(@readonly_files, $file_name);
1.745 raeburn 9041: last;
1.561 banghart 9042: }
9043: }
1.745 raeburn 9044: }
1.561 banghart 9045: }
9046: return @readonly_files;
9047: }
1.577 banghart 9048: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 9049:
1.577 banghart 9050: sub get_marked_as_readonly_hash {
1.745 raeburn 9051: my ($current_permissions,$group,$what) = @_;
1.577 banghart 9052: my %readonly_files;
1.745 raeburn 9053: while (my ($file_name,$value) = each(%{$current_permissions})) {
9054: if (defined($group)) {
9055: if ($file_name !~ m-^\Q$group\E/-) {
9056: next;
9057: }
9058: }
1.577 banghart 9059: if (ref($value) eq "ARRAY"){
9060: foreach my $stored_what (@{$value}) {
1.745 raeburn 9061: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 9062: foreach my $lock_descriptor(@{$stored_what}) {
9063: if ($lock_descriptor eq 'graded') {
9064: $readonly_files{$file_name} = 'graded';
9065: } elsif ($lock_descriptor eq 'handback') {
9066: $readonly_files{$file_name} = 'handback';
9067: } else {
9068: if (!exists($readonly_files{$file_name})) {
9069: $readonly_files{$file_name} = 'locked';
9070: }
9071: }
1.745 raeburn 9072: }
1.750 banghart 9073: }
1.577 banghart 9074: }
9075: }
9076: }
9077: return %readonly_files;
9078: }
1.559 banghart 9079: # ------------------------------------------------------------ Unmark as Read Only
9080:
9081: sub unmark_as_readonly {
1.629 banghart 9082: # unmarks $file_name (if $file_name is defined), or all files locked by $what
9083: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 9084: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 9085: $file_name = &declutter_portfile($file_name);
1.634 albertel 9086: my $symb_crs = $what;
9087: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 9088: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 9089: my ($tmp)=keys(%current_permissions);
9090: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9091: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 9092: foreach my $file (@readonly_files) {
1.759 albertel 9093: my $clean_file = &declutter_portfile($file);
9094: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 9095: my $current_locks = $current_permissions{$file};
1.563 banghart 9096: my @new_locks;
9097: my @del_keys;
9098: if (ref($current_locks) eq "ARRAY"){
9099: foreach my $locker (@{$current_locks}) {
1.632 albertel 9100: my $compare=$locker;
1.749 raeburn 9101: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 9102: $compare=join('',@{$locker});
1.746 raeburn 9103: if ($compare ne $symb_crs) {
9104: push(@new_locks, $locker);
9105: }
1.563 banghart 9106: }
9107: }
1.650 albertel 9108: if (scalar(@new_locks) > 0) {
1.563 banghart 9109: $current_permissions{$file} = \@new_locks;
9110: } else {
9111: push(@del_keys, $file);
1.613 albertel 9112: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 9113: delete($current_permissions{$file});
1.563 banghart 9114: }
9115: }
1.561 banghart 9116: }
1.613 albertel 9117: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9118: return;
9119: }
1.512 banghart 9120:
1.17 www 9121: # ------------------------------------------------------------ Directory lister
9122:
9123: sub dirlist {
1.955 raeburn 9124: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 9125: $uri=~s/^\///;
9126: $uri=~s/\/$//;
1.253 stredwic 9127: my ($udom, $uname);
1.955 raeburn 9128: if ($getuserdir) {
1.253 stredwic 9129: $udom = $userdomain;
9130: $uname = $username;
1.955 raeburn 9131: } else {
9132: (undef,$udom,$uname)=split(/\//,$uri);
9133: if(defined($userdomain)) {
9134: $udom = $userdomain;
9135: }
9136: if(defined($username)) {
9137: $uname = $username;
9138: }
1.253 stredwic 9139: }
1.955 raeburn 9140: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 9141:
1.955 raeburn 9142: $dirRoot = $perlvar{'lonDocRoot'};
9143: if (defined($getpropath)) {
9144: $dirRoot = &propath($udom,$uname);
1.253 stredwic 9145: $dirRoot =~ s/\/$//;
1.955 raeburn 9146: } elsif (defined($getuserdir)) {
9147: my $subdir=$uname.'__';
9148: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
9149: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
9150: ."/$udom/$subdir/$uname";
9151: } elsif (defined($alternateRoot)) {
9152: $dirRoot = $alternateRoot;
1.751 banghart 9153: }
1.253 stredwic 9154:
9155: if($udom) {
9156: if($uname) {
1.1135 raeburn 9157: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 9158: if ($uhome eq 'no_host') {
9159: return ([],'no_host');
9160: }
1.955 raeburn 9161: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 9162: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 9163: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 9164: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9165: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 9166: } else {
9167: @listing_results = map { &unescape($_); } split(/:/,$listing);
9168: }
1.605 matthew 9169: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9170: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 9171: @listing_results = split(/:/,$listing);
9172: } else {
9173: @listing_results = map { &unescape($_); } split(/:/,$listing);
9174: }
1.1135 raeburn 9175: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 9176: ($listing eq 'rejected') || ($listing eq 'refused') ||
9177: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9178: return ([],$listing);
9179: } else {
9180: return (\@listing_results);
1.1135 raeburn 9181: }
1.955 raeburn 9182: } elsif(!$alternateRoot) {
1.1136 raeburn 9183: my (%allusers,%listerror);
1.841 albertel 9184: my %servers = &get_servers($udom,'library');
1.955 raeburn 9185: foreach my $tryserver (keys(%servers)) {
9186: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
9187: &escape($udom),$tryserver);
9188: if ($listing eq 'unknown_cmd') {
9189: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
9190: $udom, $tryserver);
9191: } else {
9192: @listing_results = map { &unescape($_); } split(/:/,$listing);
9193: }
1.841 albertel 9194: if ($listing eq 'unknown_cmd') {
9195: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
9196: $udom, $tryserver);
9197: @listing_results = split(/:/,$listing);
9198: } else {
9199: @listing_results =
9200: map { &unescape($_); } split(/:/,$listing);
9201: }
1.1136 raeburn 9202: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
9203: ($listing eq 'rejected') || ($listing eq 'refused') ||
9204: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9205: $listerror{$tryserver} = $listing;
9206: } else {
1.841 albertel 9207: foreach my $line (@listing_results) {
9208: my ($entry) = split(/&/,$line,2);
9209: $allusers{$entry} = 1;
9210: }
9211: }
1.253 stredwic 9212: }
1.1136 raeburn 9213: my @alluserslist=();
1.800 albertel 9214: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 9215: push(@alluserslist,$user.'&user');
1.253 stredwic 9216: }
1.1136 raeburn 9217: return (\@alluserslist);
1.253 stredwic 9218: } else {
1.1136 raeburn 9219: return ([],'missing username');
1.253 stredwic 9220: }
1.955 raeburn 9221: } elsif(!defined($getpropath)) {
1.1136 raeburn 9222: my $path = $perlvar{'lonDocRoot'}.'/res/';
9223: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
9224: return (\@all_domains);
1.955 raeburn 9225: } else {
1.1136 raeburn 9226: return ([],'missing domain');
1.275 stredwic 9227: }
9228: }
9229:
9230: # --------------------------------------------- GetFileTimestamp
9231: # This function utilizes dirlist and returns the date stamp for
9232: # when it was last modified. It will also return an error of -1
9233: # if an error occurs
9234:
9235: sub GetFileTimestamp {
1.955 raeburn 9236: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 9237: $studentDomain = &LONCAPA::clean_domain($studentDomain);
9238: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 9239: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
9240: undef,$getuserdir);
9241: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9242: return -1;
9243: }
9244: if (ref($fileref) eq 'ARRAY') {
9245: my @stats = split('&',$fileref->[0]);
1.375 matthew 9246: # @stats contains first the filename, then the stat output
9247: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 9248: } else {
9249: return -1;
1.253 stredwic 9250: }
1.26 www 9251: }
9252:
1.712 albertel 9253: sub stat_file {
9254: my ($uri) = @_;
1.787 albertel 9255: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 9256:
1.955 raeburn 9257: my ($udom,$uname,$file);
1.712 albertel 9258: if ($uri =~ m-^/(uploaded|editupload)/-) {
9259: ($udom,$uname,$file) =
1.811 albertel 9260: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 9261: $file = 'userfiles/'.$file;
9262: }
9263: if ($uri =~ m-^/res/-) {
9264: ($udom,$uname) =
1.807 albertel 9265: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 9266: $file = $uri;
9267: }
9268:
9269: if (!$udom || !$uname || !$file) {
9270: # unable to handle the uri
9271: return ();
9272: }
1.956 raeburn 9273: my $getpropath;
9274: if ($file =~ /^userfiles\//) {
9275: $getpropath = 1;
9276: }
1.1136 raeburn 9277: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
9278: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9279: return ();
9280: } else {
9281: if (ref($listref) eq 'ARRAY') {
9282: my @stats = split('&',$listref->[0]);
9283: shift(@stats); #filename is first
9284: return @stats;
9285: }
1.712 albertel 9286: }
9287: return ();
9288: }
9289:
1.26 www 9290: # -------------------------------------------------------- Value of a Condition
9291:
1.713 albertel 9292: # gets the value of a specific preevaluated condition
9293: # stored in the string $env{user.state.<cid>}
9294: # or looks up a condition reference in the bighash and if if hasn't
9295: # already been evaluated recurses into docondval to get the value of
9296: # the condition, then memoizing it to
9297: # $env{user.state.<cid>.<condition>}
1.40 www 9298: sub directcondval {
9299: my $number=shift;
1.620 albertel 9300: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 9301: &Apache::lonuserstate::evalstate();
9302: }
1.713 albertel 9303: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
9304: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
9305: } elsif ($number =~ /^_/) {
9306: my $sub_condition;
9307: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9308: &GDBM_READER(),0640)) {
9309: $sub_condition=$bighash{'conditions'.$number};
9310: untie(%bighash);
9311: }
9312: my $value = &docondval($sub_condition);
1.949 raeburn 9313: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 9314: return $value;
9315: }
1.620 albertel 9316: if ($env{'user.state.'.$env{'request.course.id'}}) {
9317: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 9318: } else {
9319: return 2;
9320: }
9321: }
9322:
1.713 albertel 9323: # get the collection of conditions for this resource
1.26 www 9324: sub condval {
9325: my $condidx=shift;
1.54 www 9326: my $allpathcond='';
1.713 albertel 9327: foreach my $cond (split(/\|/,$condidx)) {
9328: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
9329: $allpathcond.=
9330: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
9331: }
1.191 harris41 9332: }
1.54 www 9333: $allpathcond=~s/\|$//;
1.713 albertel 9334: return &docondval($allpathcond);
9335: }
9336:
9337: #evaluates an expression of conditions
9338: sub docondval {
9339: my ($allpathcond) = @_;
9340: my $result=0;
9341: if ($env{'request.course.id'}
9342: && defined($allpathcond)) {
9343: my $operand='|';
9344: my @stack;
9345: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
9346: if ($chunk eq '(') {
9347: push @stack,($operand,$result);
9348: } elsif ($chunk eq ')') {
9349: my $before=pop @stack;
9350: if (pop @stack eq '&') {
9351: $result=$result>$before?$before:$result;
9352: } else {
9353: $result=$result>$before?$result:$before;
9354: }
9355: } elsif (($chunk eq '&') || ($chunk eq '|')) {
9356: $operand=$chunk;
9357: } else {
9358: my $new=directcondval($chunk);
9359: if ($operand eq '&') {
9360: $result=$result>$new?$new:$result;
9361: } else {
9362: $result=$result>$new?$result:$new;
9363: }
9364: }
9365: }
1.26 www 9366: }
9367: return $result;
1.421 albertel 9368: }
9369:
9370: # ---------------------------------------------------- Devalidate courseresdata
9371:
9372: sub devalidatecourseresdata {
9373: my ($coursenum,$coursedomain)=@_;
9374: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9375: &devalidate_cache_new('courseres',$hashid);
1.28 www 9376: }
9377:
1.763 www 9378:
1.200 www 9379: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 9380: #
9381: # Parameters:
9382: # $coursenum - Number of the course.
9383: # $coursedomain - Domain at which the course was created.
9384: # Returns:
9385: # A hash of the course parameters along (I think) with timestamps
9386: # and version info.
1.877 foxr 9387:
1.624 albertel 9388: sub get_courseresdata {
9389: my ($coursenum,$coursedomain)=@_;
1.200 www 9390: my $coursehom=&homeserver($coursenum,$coursedomain);
9391: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9392: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 9393: my %dumpreply;
1.417 albertel 9394: unless (defined($cached)) {
1.624 albertel 9395: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 9396: $result=\%dumpreply;
1.251 albertel 9397: my ($tmp) = keys(%dumpreply);
9398: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 9399: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 9400: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
9401: return $tmp;
1.416 albertel 9402: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 9403: $result=undef;
1.599 albertel 9404: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 9405: }
9406: }
1.624 albertel 9407: return $result;
9408: }
9409:
1.633 albertel 9410: sub devalidateuserresdata {
9411: my ($uname,$udom)=@_;
9412: my $hashid="$udom:$uname";
9413: &devalidate_cache_new('userres',$hashid);
9414: }
9415:
1.624 albertel 9416: sub get_userresdata {
9417: my ($uname,$udom)=@_;
9418: #most student don\'t have any data set, check if there is some data
9419: if (&EXT_cache_status($udom,$uname)) { return undef; }
9420:
9421: my $hashid="$udom:$uname";
9422: my ($result,$cached)=&is_cached_new('userres',$hashid);
9423: if (!defined($cached)) {
9424: my %resourcedata=&dump('resourcedata',$udom,$uname);
9425: $result=\%resourcedata;
9426: &do_cache_new('userres',$hashid,$result,600);
9427: }
9428: my ($tmp)=keys(%$result);
9429: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
9430: return $result;
9431: }
9432: #error 2 occurs when the .db doesn't exist
9433: if ($tmp!~/error: 2 /) {
1.672 albertel 9434: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 9435: " Trying to get resource data for ".
9436: $uname." at ".$udom.": ".
9437: $tmp."</font>");
9438: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 9439: #&EXT_cache_set($udom,$uname);
9440: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 9441: undef($tmp); # not really an error so don't send it back
1.624 albertel 9442: }
9443: return $tmp;
9444: }
1.879 foxr 9445: #----------------------------------------------- resdata - return resource data
9446: # Purpose:
9447: # Return resource data for either users or for a course.
9448: # Parameters:
9449: # $name - Course/user name.
9450: # $domain - Name of the domain the user/course is registered on.
9451: # $type - Type of thing $name is (must be 'course' or 'user'
9452: # @which - Array of names of resources desired.
9453: # Returns:
9454: # The value of the first reasource in @which that is found in the
9455: # resource hash.
9456: # Exceptional Conditions:
9457: # If the $type passed in is not valid (not the string 'course' or
9458: # 'user', an undefined reference is returned.
9459: # If none of the resources are found, an undef is returned
1.624 albertel 9460: sub resdata {
9461: my ($name,$domain,$type,@which)=@_;
9462: my $result;
9463: if ($type eq 'course') {
9464: $result=&get_courseresdata($name,$domain);
9465: } elsif ($type eq 'user') {
9466: $result=&get_userresdata($name,$domain);
9467: }
9468: if (!ref($result)) { return $result; }
1.251 albertel 9469: foreach my $item (@which) {
1.927 albertel 9470: if (defined($result->{$item->[0]})) {
9471: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 9472: }
1.250 albertel 9473: }
1.291 albertel 9474: return undef;
1.200 www 9475: }
9476:
1.379 matthew 9477: #
9478: # EXT resource caching routines
9479: #
9480:
9481: sub clear_EXT_cache_status {
1.383 albertel 9482: &delenv('cache.EXT.');
1.379 matthew 9483: }
9484:
9485: sub EXT_cache_status {
9486: my ($target_domain,$target_user) = @_;
1.383 albertel 9487: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 9488: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 9489: # We know already the user has no data
9490: return 1;
9491: } else {
9492: return 0;
9493: }
9494: }
9495:
9496: sub EXT_cache_set {
9497: my ($target_domain,$target_user) = @_;
1.383 albertel 9498: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 9499: #&appenv({$cachename => time});
1.379 matthew 9500: }
9501:
1.28 www 9502: # --------------------------------------------------------- Value of a Variable
1.58 www 9503: sub EXT {
1.715 albertel 9504:
1.395 albertel 9505: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 9506: unless ($varname) { return ''; }
1.218 albertel 9507: #get real user name/domain, courseid and symb
9508: my $courseid;
1.359 albertel 9509: my $publicuser;
1.427 www 9510: if ($symbparm) {
9511: $symbparm=&get_symb_from_alias($symbparm);
9512: }
1.218 albertel 9513: if (!($uname && $udom)) {
1.790 albertel 9514: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 9515: if (!$symbparm) { $symbparm=$cursymb; }
9516: } else {
1.620 albertel 9517: $courseid=$env{'request.course.id'};
1.218 albertel 9518: }
1.48 www 9519: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
9520: my $rest;
1.320 albertel 9521: if (defined($therest[0])) {
1.48 www 9522: $rest=join('.',@therest);
9523: } else {
9524: $rest='';
9525: }
1.320 albertel 9526:
1.57 www 9527: my $qualifierrest=$qualifier;
9528: if ($rest) { $qualifierrest.='.'.$rest; }
9529: my $spacequalifierrest=$space;
9530: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 9531: if ($realm eq 'user') {
1.48 www 9532: # --------------------------------------------------------------- user.resource
9533: if ($space eq 'resource') {
1.651 albertel 9534: if ( (defined($Apache::lonhomework::parsing_a_problem)
9535: || defined($Apache::lonhomework::parsing_a_task))
9536: &&
1.744 albertel 9537: ($symbparm eq &symbread()) ) {
9538: # if we are in the middle of processing the resource the
9539: # get the value we are planning on committing
9540: if (defined($Apache::lonhomework::results{$qualifierrest})) {
9541: return $Apache::lonhomework::results{$qualifierrest};
9542: } else {
9543: return $Apache::lonhomework::history{$qualifierrest};
9544: }
1.335 albertel 9545: } else {
1.359 albertel 9546: my %restored;
1.620 albertel 9547: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 9548: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
9549: } else {
9550: %restored=&restore($symbparm,$courseid,$udom,$uname);
9551: }
1.335 albertel 9552: return $restored{$qualifierrest};
9553: }
1.48 www 9554: # ----------------------------------------------------------------- user.access
9555: } elsif ($space eq 'access') {
1.218 albertel 9556: # FIXME - not supporting calls for a specific user
1.48 www 9557: return &allowed($qualifier,$rest);
9558: # ------------------------------------------ user.preferences, user.environment
9559: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 9560: if (($uname eq $env{'user.name'}) &&
9561: ($udom eq $env{'user.domain'})) {
9562: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 9563: } else {
1.359 albertel 9564: my %returnhash;
9565: if (!$publicuser) {
9566: %returnhash=&userenvironment($udom,$uname,
9567: $qualifierrest);
9568: }
1.218 albertel 9569: return $returnhash{$qualifierrest};
9570: }
1.48 www 9571: # ----------------------------------------------------------------- user.course
9572: } elsif ($space eq 'course') {
1.218 albertel 9573: # FIXME - not supporting calls for a specific user
1.620 albertel 9574: return $env{join('.',('request.course',$qualifier))};
1.48 www 9575: # ------------------------------------------------------------------- user.role
9576: } elsif ($space eq 'role') {
1.218 albertel 9577: # FIXME - not supporting calls for a specific user
1.620 albertel 9578: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 9579: if ($qualifier eq 'value') {
9580: return $role;
9581: } elsif ($qualifier eq 'extent') {
9582: return $where;
9583: }
9584: # ----------------------------------------------------------------- user.domain
9585: } elsif ($space eq 'domain') {
1.218 albertel 9586: return $udom;
1.48 www 9587: # ------------------------------------------------------------------- user.name
9588: } elsif ($space eq 'name') {
1.218 albertel 9589: return $uname;
1.48 www 9590: # ---------------------------------------------------- Any other user namespace
1.29 www 9591: } else {
1.359 albertel 9592: my %reply;
9593: if (!$publicuser) {
9594: %reply=&get($space,[$qualifierrest],$udom,$uname);
9595: }
9596: return $reply{$qualifierrest};
1.48 www 9597: }
1.236 www 9598: } elsif ($realm eq 'query') {
9599: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 9600: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
9601: [$spacequalifierrest]);
1.620 albertel 9602: return $env{'form.'.$spacequalifierrest};
1.236 www 9603: } elsif ($realm eq 'request') {
1.48 www 9604: # ------------------------------------------------------------- request.browser
9605: if ($space eq 'browser') {
1.1145 bisitz 9606: return $env{'browser.'.$qualifier};
1.57 www 9607: # ------------------------------------------------------------ request.filename
9608: } else {
1.620 albertel 9609: return $env{'request.'.$spacequalifierrest};
1.29 www 9610: }
1.28 www 9611: } elsif ($realm eq 'course') {
1.48 www 9612: # ---------------------------------------------------------- course.description
1.620 albertel 9613: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 9614: } elsif ($realm eq 'resource') {
1.165 www 9615:
1.620 albertel 9616: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 9617: if (!$symbparm) { $symbparm=&symbread(); }
9618: }
1.693 albertel 9619:
9620: if ($space eq 'title') {
9621: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
9622: return &gettitle($symbparm);
9623: }
9624:
9625: if ($space eq 'map') {
9626: my ($map) = &decode_symb($symbparm);
9627: return &symbread($map);
9628: }
1.905 albertel 9629: if ($space eq 'filename') {
9630: if ($symbparm) {
9631: return &clutter((&decode_symb($symbparm))[2]);
9632: }
9633: return &hreflocation('',$env{'request.filename'});
9634: }
1.693 albertel 9635:
9636: my ($section, $group, @groups);
1.593 albertel 9637: my ($courselevelm,$courselevel);
1.539 albertel 9638: if ($symbparm && defined($courseid) &&
1.620 albertel 9639: $courseid eq $env{'request.course.id'}) {
1.165 www 9640:
1.218 albertel 9641: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 9642:
1.60 www 9643: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 9644: my $symbp=$symbparm;
1.735 albertel 9645: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 9646:
9647: my $symbparm=$symbp.'.'.$spacequalifierrest;
9648: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
9649:
1.620 albertel 9650: if (($env{'user.name'} eq $uname) &&
9651: ($env{'user.domain'} eq $udom)) {
9652: $section=$env{'request.course.sec'};
1.733 raeburn 9653: @groups = split(/:/,$env{'request.course.groups'});
9654: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 9655: } else {
1.539 albertel 9656: if (! defined($usection)) {
1.551 albertel 9657: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 9658: } else {
9659: $section = $usection;
9660: }
1.733 raeburn 9661: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 9662: }
9663:
9664: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
9665: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
9666: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
9667:
1.593 albertel 9668: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 9669: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 9670: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 9671:
1.60 www 9672: # ----------------------------------------------------------- first, check user
1.624 albertel 9673:
9674: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 9675: ([$courselevelr,'resource'],
9676: [$courselevelm,'map' ],
9677: [$courselevel, 'course' ]));
1.931 albertel 9678: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 9679:
1.594 albertel 9680: # ------------------------------------------------ second, check some of course
1.684 raeburn 9681: my $coursereply;
1.691 raeburn 9682: if (@groups > 0) {
9683: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
9684: $mapparm,$spacequalifierrest);
1.927 albertel 9685: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 9686: }
1.96 www 9687:
1.684 raeburn 9688: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 9689: $env{'course.'.$courseid.'.domain'},
9690: 'course',
9691: ([$seclevelr, 'resource'],
9692: [$seclevelm, 'map' ],
9693: [$seclevel, 'course' ],
9694: [$courselevelr,'resource']));
9695: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 9696:
1.60 www 9697: # ------------------------------------------------------ third, check map parms
1.218 albertel 9698: my %parmhash=();
9699: my $thisparm='';
9700: if (tie(%parmhash,'GDBM_File',
1.620 albertel 9701: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 9702: &GDBM_READER(),0640)) {
1.218 albertel 9703: $thisparm=$parmhash{$symbparm};
9704: untie(%parmhash);
9705: }
1.927 albertel 9706: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 9707: }
1.594 albertel 9708: # ------------------------------------------ fourth, look in resource metadata
1.71 www 9709:
1.218 albertel 9710: $spacequalifierrest=~s/\./\_/;
1.282 albertel 9711: my $filename;
9712: if (!$symbparm) { $symbparm=&symbread(); }
9713: if ($symbparm) {
1.409 www 9714: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 9715: } else {
1.620 albertel 9716: $filename=$env{'request.filename'};
1.282 albertel 9717: }
9718: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 9719: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 9720: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 9721: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 9722:
1.927 albertel 9723: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 9724: if ($symbparm && defined($courseid) &&
1.620 albertel 9725: $courseid eq $env{'request.course.id'}) {
1.624 albertel 9726: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
9727: $env{'course.'.$courseid.'.domain'},
9728: 'course',
1.927 albertel 9729: ([$courselevelm,'map' ],
9730: [$courselevel, 'course']));
9731: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 9732: }
1.145 www 9733: # ------------------------------------------------------------------ Cascade up
1.218 albertel 9734: unless ($space eq '0') {
1.336 albertel 9735: my @parts=split(/_/,$space);
9736: my $id=pop(@parts);
9737: my $part=join('_',@parts);
9738: if ($part eq '') { $part='0'; }
1.927 albertel 9739: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 9740: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 9741: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 9742: }
1.395 albertel 9743: if ($recurse) { return undef; }
9744: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 9745: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 9746: # ---------------------------------------------------- Any other user namespace
9747: } elsif ($realm eq 'environment') {
9748: # ----------------------------------------------------------------- environment
1.620 albertel 9749: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
9750: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 9751: } else {
1.770 albertel 9752: if ($uname eq 'anonymous' && $udom eq '') {
9753: return '';
9754: }
1.219 albertel 9755: my %returnhash=&userenvironment($udom,$uname,
9756: $spacequalifierrest);
9757: return $returnhash{$spacequalifierrest};
9758: }
1.28 www 9759: } elsif ($realm eq 'system') {
1.48 www 9760: # ----------------------------------------------------------------- system.time
9761: if ($space eq 'time') {
9762: return time;
9763: }
1.696 albertel 9764: } elsif ($realm eq 'server') {
9765: # ----------------------------------------------------------------- system.time
9766: if ($space eq 'name') {
9767: return $ENV{'SERVER_NAME'};
9768: }
1.28 www 9769: }
1.48 www 9770: return '';
1.61 www 9771: }
9772:
1.927 albertel 9773: sub get_reply {
9774: my ($reply_value) = @_;
1.940 raeburn 9775: if (ref($reply_value) eq 'ARRAY') {
9776: if (wantarray) {
9777: return @$reply_value;
9778: }
9779: return $reply_value->[0];
9780: } else {
9781: return $reply_value;
1.927 albertel 9782: }
9783: }
9784:
1.691 raeburn 9785: sub check_group_parms {
9786: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
9787: my @groupitems = ();
9788: my $resultitem;
1.927 albertel 9789: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 9790: foreach my $group (@{$groups}) {
9791: foreach my $level (@levels) {
1.927 albertel 9792: my $item = $courseid.'.['.$group.'].'.$level->[0];
9793: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 9794: }
9795: }
9796: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
9797: $env{'course.'.$courseid.'.domain'},
9798: 'course',@groupitems);
9799: return $coursereply;
9800: }
9801:
9802: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 9803: my ($courseid,@groups) = @_;
9804: @groups = sort(@groups);
1.691 raeburn 9805: return @groups;
9806: }
9807:
1.395 albertel 9808: sub packages_tab_default {
9809: my ($uri,$varname)=@_;
9810: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 9811:
9812: my (@extension,@specifics,$do_default);
9813: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 9814: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 9815: if ($pack_type eq 'default') {
9816: $do_default=1;
9817: } elsif ($pack_type eq 'extension') {
9818: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 9819: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 9820: # only look at packages defaults for packages that this id is
1.738 albertel 9821: push(@specifics,[$package,$pack_type,$pack_part]);
9822: }
9823: }
9824: # first look for a package that matches the requested part id
9825: foreach my $package (@specifics) {
9826: my (undef,$pack_type,$pack_part)=@{$package};
9827: next if ($pack_part ne $part);
9828: if (defined($packagetab{"$pack_type&$name&default"})) {
9829: return $packagetab{"$pack_type&$name&default"};
9830: }
9831: }
9832: # look for any possible matching non extension_ package
9833: foreach my $package (@specifics) {
9834: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 9835: if (defined($packagetab{"$pack_type&$name&default"})) {
9836: return $packagetab{"$pack_type&$name&default"};
9837: }
1.585 albertel 9838: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 9839: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
9840: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 9841: }
9842: }
1.738 albertel 9843: # look for any posible extension_ match
9844: foreach my $package (@extension) {
9845: my ($package,$pack_type)=@{$package};
9846: if (defined($packagetab{"$pack_type&$name&default"})) {
9847: return $packagetab{"$pack_type&$name&default"};
9848: }
9849: if (defined($packagetab{$package."&$name&default"})) {
9850: return $packagetab{$package."&$name&default"};
9851: }
9852: }
9853: # look for a global default setting
9854: if ($do_default && defined($packagetab{"default&$name&default"})) {
9855: return $packagetab{"default&$name&default"};
9856: }
1.395 albertel 9857: return undef;
9858: }
9859:
1.334 albertel 9860: sub add_prefix_and_part {
9861: my ($prefix,$part)=@_;
9862: my $keyroot;
9863: if (defined($prefix) && $prefix !~ /^__/) {
9864: # prefix that has a part already
9865: $keyroot=$prefix;
9866: } elsif (defined($prefix)) {
9867: # prefix that is missing a part
9868: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
9869: } else {
9870: # no prefix at all
9871: if (defined($part)) { $keyroot='_'.$part; }
9872: }
9873: return $keyroot;
9874: }
9875:
1.71 www 9876: # ---------------------------------------------------------------- Get metadata
9877:
1.599 albertel 9878: my %metaentry;
1.1070 www 9879: my %importedpartids;
1.71 www 9880: sub metadata {
1.176 www 9881: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 9882: $uri=&declutter($uri);
1.288 albertel 9883: # if it is a non metadata possible uri return quickly
1.529 albertel 9884: if (($uri eq '') ||
9885: (($uri =~ m|^/*adm/|) &&
1.698 albertel 9886: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.1108 raeburn 9887: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 9888: return undef;
9889: }
1.1140 www 9890: if (($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/)
1.924 albertel 9891: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 9892: return undef;
1.288 albertel 9893: }
1.73 www 9894: my $filename=$uri;
9895: $uri=~s/\.meta$//;
1.172 www 9896: #
9897: # Is the metadata already cached?
1.177 www 9898: # Look at timestamp of caching
1.172 www 9899: # Everything is cached by the main uri, libraries are never directly cached
9900: #
1.428 albertel 9901: if (!defined($liburi)) {
1.599 albertel 9902: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 9903: if (defined($cached)) { return $result->{':'.$what}; }
9904: }
9905: {
1.1069 www 9906: # Imported parts would go here
1.1070 www 9907: my %importedids=();
9908: my @origfileimportpartids=();
1.1069 www 9909: my $importedparts=0;
1.172 www 9910: #
9911: # Is this a recursive call for a library?
9912: #
1.599 albertel 9913: # if (! exists($metacache{$uri})) {
9914: # $metacache{$uri}={};
9915: # }
1.924 albertel 9916: my $cachetime = 60*60;
1.171 www 9917: if ($liburi) {
9918: $liburi=&declutter($liburi);
9919: $filename=$liburi;
1.401 bowersj2 9920: } else {
1.599 albertel 9921: &devalidate_cache_new('meta',$uri);
9922: undef(%metaentry);
1.401 bowersj2 9923: }
1.140 www 9924: my %metathesekeys=();
1.73 www 9925: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 9926: my $metastring;
1.1140 www 9927: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 9928: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 9929: $metastring =
1.929 albertel 9930: &Apache::lonnet::ssi_body($which,
1.924 albertel 9931: ('grade_target' => 'meta'));
9932: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 9933: } elsif (($uri !~ m -^(editupload)/-) &&
9934: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 9935: my $file=&filelocation('',&clutter($filename));
1.599 albertel 9936: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 9937: $metastring=&getfile($file);
1.489 albertel 9938: }
1.208 albertel 9939: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 9940: my $token;
1.140 www 9941: undef %metathesekeys;
1.71 www 9942: while ($token=$parser->get_token) {
1.339 albertel 9943: if ($token->[0] eq 'S') {
9944: if (defined($token->[2]->{'package'})) {
1.172 www 9945: #
9946: # This is a package - get package info
9947: #
1.339 albertel 9948: my $package=$token->[2]->{'package'};
9949: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9950: if (defined($token->[2]->{'id'})) {
9951: $keyroot.='_'.$token->[2]->{'id'};
9952: }
1.599 albertel 9953: if ($metaentry{':packages'}) {
9954: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 9955: } else {
1.599 albertel 9956: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 9957: }
1.736 albertel 9958: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 9959: my $part=$keyroot;
9960: $part=~s/^\_//;
1.736 albertel 9961: if ($pack_entry=~/^\Q$package\E\&/ ||
9962: $pack_entry=~/^\Q$package\E_0\&/) {
9963: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 9964: # ignore package.tab specified default values
9965: # here &package_tab_default() will fetch those
9966: if ($subp eq 'default') { next; }
1.736 albertel 9967: my $value=$packagetab{$pack_entry};
1.432 albertel 9968: my $unikey;
9969: if ($pack =~ /_0$/) {
9970: $unikey='parameter_0_'.$name;
9971: $part=0;
9972: } else {
9973: $unikey='parameter'.$keyroot.'_'.$name;
9974: }
1.339 albertel 9975: if ($subp eq 'display') {
9976: $value.=' [Part: '.$part.']';
9977: }
1.599 albertel 9978: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 9979: $metathesekeys{$unikey}=1;
1.599 albertel 9980: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
9981: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 9982: }
1.599 albertel 9983: if (defined($metaentry{':'.$unikey.'.default'})) {
9984: $metaentry{':'.$unikey}=
9985: $metaentry{':'.$unikey.'.default'};
1.356 albertel 9986: }
1.339 albertel 9987: }
9988: }
9989: } else {
1.172 www 9990: #
9991: # This is not a package - some other kind of start tag
1.339 albertel 9992: #
9993: my $entry=$token->[1];
1.1068 www 9994: my $unikey='';
1.175 www 9995:
1.339 albertel 9996: if ($entry eq 'import') {
1.175 www 9997: #
9998: # Importing a library here
1.339 albertel 9999: #
1.1067 www 10000: my $location=$parser->get_text('/import');
10001: my $dir=$filename;
10002: $dir=~s|[^/]*$||;
10003: $location=&filelocation($dir,$location);
1.1069 www 10004:
1.1068 www 10005: my $importmode=$token->[2]->{'importmode'};
10006: if ($importmode eq 'problem') {
1.1069 www 10007: # Import as problem/response
1.1068 www 10008: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10009: } elsif ($importmode eq 'part') {
10010: # Import as part(s)
1.1069 www 10011: $importedparts=1;
10012: # We need to get the original file and the imported file to get the part order correct
10013: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
10014: # Load and inspect original file
1.1070 www 10015: if ($#origfileimportpartids<0) {
10016: undef(%importedpartids);
10017: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
10018: my $origfile=&getfile($origfilelocation);
10019: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10020: }
10021:
1.1069 www 10022: # Load and inspect imported file
10023: my $impfile=&getfile($location);
10024: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10025: if ($#impfilepartids>=0) {
10026: # This problem had parts
1.1070 www 10027: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 10028: } else {
10029: # Importing by turning a single problem into a problem part
10030: # It gets the import-tags ID as part-ID
10031: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 10032: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 10033: }
1.1068 www 10034: } else {
10035: # Normal import
10036: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10037: if (defined($token->[2]->{'id'})) {
10038: $unikey.='_'.$token->[2]->{'id'};
10039: }
1.1067 www 10040: }
10041:
1.339 albertel 10042: if ($depthcount<20) {
1.736 albertel 10043: my $metadata =
10044: &metadata($uri,'keys', $location,$unikey,
10045: $depthcount+1);
10046: foreach my $meta (split(',',$metadata)) {
10047: $metaentry{':'.$meta}=$metaentry{':'.$meta};
10048: $metathesekeys{$meta}=1;
1.339 albertel 10049: }
1.1068 www 10050:
10051: }
1.1067 www 10052: } else {
10053: #
10054: # Not importing, some other kind of non-package, non-library start tag
10055: #
10056: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
10057: if (defined($token->[2]->{'id'})) {
10058: $unikey.='_'.$token->[2]->{'id'};
10059: }
1.339 albertel 10060: if (defined($token->[2]->{'name'})) {
10061: $unikey.='_'.$token->[2]->{'name'};
10062: }
10063: $metathesekeys{$unikey}=1;
1.736 albertel 10064: foreach my $param (@{$token->[3]}) {
10065: $metaentry{':'.$unikey.'.'.$param} =
10066: $token->[2]->{$param};
1.339 albertel 10067: }
10068: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 10069: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 10070: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
10071: # only ws inside the tag, and not in default, so use default
10072: # as value
1.599 albertel 10073: $metaentry{':'.$unikey}=$default;
1.908 albertel 10074: } elsif ( $internaltext =~ /\S/ ) {
10075: # something interesting inside the tag
10076: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 10077: } else {
1.908 albertel 10078: # no interesting values, don't set a default
1.339 albertel 10079: }
1.172 www 10080: # end of not-a-package not-a-library import
1.339 albertel 10081: }
1.172 www 10082: # end of not-a-package start tag
1.339 albertel 10083: }
1.172 www 10084: # the next is the end of "start tag"
1.339 albertel 10085: }
10086: }
1.483 albertel 10087: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 10088: $extension = lc($extension);
10089: if ($extension eq 'htm') { $extension='html'; }
10090:
1.737 albertel 10091: foreach my $key (keys(%packagetab)) {
1.483 albertel 10092: #no specific packages #how's our extension
10093: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 10094: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 10095: \%metathesekeys);
10096: }
1.883 albertel 10097:
10098: if (!exists($metaentry{':packages'})
10099: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 10100: foreach my $key (keys(%packagetab)) {
1.483 albertel 10101: #no specific packages well let's get default then
10102: if ($key!~/^default&/) { next; }
1.488 albertel 10103: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 10104: \%metathesekeys);
10105: }
10106: }
1.338 www 10107: # are there custom rights to evaluate
1.599 albertel 10108: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 10109:
1.338 www 10110: #
10111: # Importing a rights file here
1.339 albertel 10112: #
10113: unless ($depthcount) {
1.599 albertel 10114: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 10115: my $dir=$filename;
10116: $dir=~s|[^/]*$||;
10117: $location=&filelocation($dir,$location);
1.736 albertel 10118: my $rights_metadata =
10119: &metadata($uri,'keys',$location,'_rights',
10120: $depthcount+1);
10121: foreach my $rights (split(',',$rights_metadata)) {
10122: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
10123: $metathesekeys{$rights}=1;
1.339 albertel 10124: }
10125: }
10126: }
1.737 albertel 10127: # uniqifiy package listing
10128: my %seen;
10129: my @uniq_packages =
10130: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
10131: $metaentry{':packages'} = join(',',@uniq_packages);
10132:
1.1070 www 10133: if ($importedparts) {
10134: # We had imported parts and need to rebuild partorder
10135: $metaentry{':partorder'}='';
10136: $metathesekeys{'partorder'}=1;
10137: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
10138: if ($origfileimportpartids[$index] eq 'part') {
10139: # original part, part of the problem
10140: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
10141: } else {
10142: # we have imported parts at this position
10143: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
10144: }
10145: }
10146: $metaentry{':partorder'}=~s/^\,//;
10147: }
10148:
1.737 albertel 10149: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 10150: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
10151: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 10152: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 10153: # this is the end of "was not already recently cached
1.71 www 10154: }
1.599 albertel 10155: return $metaentry{':'.$what};
1.261 albertel 10156: }
10157:
1.488 albertel 10158: sub metadata_create_package_def {
1.483 albertel 10159: my ($uri,$key,$package,$metathesekeys)=@_;
10160: my ($pack,$name,$subp)=split(/\&/,$key);
10161: if ($subp eq 'default') { next; }
10162:
1.599 albertel 10163: if (defined($metaentry{':packages'})) {
10164: $metaentry{':packages'}.=','.$package;
1.483 albertel 10165: } else {
1.599 albertel 10166: $metaentry{':packages'}=$package;
1.483 albertel 10167: }
10168: my $value=$packagetab{$key};
10169: my $unikey;
10170: $unikey='parameter_0_'.$name;
1.599 albertel 10171: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 10172: $$metathesekeys{$unikey}=1;
1.599 albertel 10173: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10174: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 10175: }
1.599 albertel 10176: if (defined($metaentry{':'.$unikey.'.default'})) {
10177: $metaentry{':'.$unikey}=
10178: $metaentry{':'.$unikey.'.default'};
1.483 albertel 10179: }
10180: }
10181:
1.261 albertel 10182: sub metadata_generate_part0 {
10183: my ($metadata,$metacache,$uri) = @_;
10184: my %allnames;
1.737 albertel 10185: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 10186: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 10187: my $part=$$metacache{':'.$metakey.'.part'};
10188: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 10189: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 10190: $allnames{$name}=$part;
10191: }
10192: }
10193: }
10194: foreach my $name (keys(%allnames)) {
10195: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 10196: my $key=":parameter_0_$name";
1.261 albertel 10197: $$metacache{"$key.part"}='0';
10198: $$metacache{"$key.name"}=$name;
1.428 albertel 10199: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 10200: $allnames{$name}.'_'.$name.
10201: '.type'};
1.428 albertel 10202: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 10203: '.display'};
1.644 www 10204: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 10205: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 10206: $$metacache{"$key.display"}=$olddis;
10207: }
1.71 www 10208: }
10209:
1.764 albertel 10210: # ------------------------------------------------------ Devalidate title cache
10211:
10212: sub devalidate_title_cache {
10213: my ($url)=@_;
10214: if (!$env{'request.course.id'}) { return; }
10215: my $symb=&symbread($url);
10216: if (!$symb) { return; }
10217: my $key=$env{'request.course.id'}."\0".$symb;
10218: &devalidate_cache_new('title',$key);
10219: }
10220:
1.1014 droeschl 10221: # ------------------------------------------------- Get the title of a course
10222:
10223: sub current_course_title {
10224: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
10225: }
1.301 www 10226: # ------------------------------------------------- Get the title of a resource
10227:
10228: sub gettitle {
10229: my $urlsymb=shift;
10230: my $symb=&symbread($urlsymb);
1.534 albertel 10231: if ($symb) {
1.620 albertel 10232: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 10233: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 10234: if (defined($cached)) {
10235: return $result;
10236: }
1.534 albertel 10237: my ($map,$resid,$url)=&decode_symb($symb);
10238: my $title='';
1.907 albertel 10239: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
10240: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
10241: } else {
10242: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10243: &GDBM_READER(),0640)) {
10244: my $mapid=$bighash{'map_pc_'.&clutter($map)};
10245: $title=$bighash{'title_'.$mapid.'.'.$resid};
10246: untie(%bighash);
10247: }
1.534 albertel 10248: }
10249: $title=~s/\&colon\;/\:/gs;
10250: if ($title) {
1.1159 www 10251: # Remember both $symb and $title for dynamic metadata
10252: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 10253: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 10254: # Cache this title and then return it
1.599 albertel 10255: return &do_cache_new('title',$key,$title,600);
1.534 albertel 10256: }
10257: $urlsymb=$url;
10258: }
10259: my $title=&metadata($urlsymb,'title');
10260: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
10261: return $title;
1.301 www 10262: }
1.613 albertel 10263:
1.1172.2.13 raeburn 10264: sub getdocspath {
10265: my ($symb) = @_;
10266: my $path;
10267: if ($symb) {
10268: my ($mapurl,$id,$resurl) = &decode_symb($symb);
10269: if ($resurl=~/\.(sequence|page)$/) {
10270: $mapurl=$resurl;
10271: } elsif ($resurl eq 'adm/navmaps') {
10272: $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
10273: }
10274: my $mapresobj;
10275: my $navmap = Apache::lonnavmaps::navmap->new();
10276: if (ref($navmap)) {
10277: $mapresobj = $navmap->getResourceByUrl($mapurl);
10278: }
10279: $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
10280: my $type=$2;
10281: if (ref($mapresobj)) {
10282: my $pcslist = $mapresobj->map_hierarchy();
10283: if ($pcslist ne '') {
10284: foreach my $pc (split(/,/,$pcslist)) {
10285: next if ($pc <= 1);
10286: my $res = $navmap->getByMapPc($pc);
10287: if (ref($res)) {
10288: my $thisurl = $res->src();
10289: $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
10290: my $thistitle = $res->title();
10291: $path .= '&'.
10292: &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
10293: &Apache::lonhtmlcommon::entity_encode($thistitle).
10294: ':'.$res->randompick().
10295: ':'.$res->randomout().
10296: ':'.$res->encrypted().
10297: ':'.$res->randomorder().
10298: ':'.$res->is_page();
10299: }
10300: }
10301: }
10302: $path =~ s/^\&//;
10303: my $maptitle = $mapresobj->title();
10304: if ($mapurl eq 'default') {
10305: $maptitle = 'Main Course Documents';
10306: }
10307: $path .= ($path ne '')? '&' : ''.
10308: &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
10309: &Apache::lonhtmlcommon::entity_encode($maptitle).
10310: ':'.$mapresobj->randompick().
10311: ':'.$mapresobj->randomout().
10312: ':'.$mapresobj->encrypted().
10313: ':'.$mapresobj->randomorder().
10314: ':'.$mapresobj->is_page();
10315: } else {
10316: my $maptitle = &gettitle($mapurl);
10317: my $ispage;
10318: if ($mapurl =~ /\.page$/) {
10319: $ispage = 1;
10320: }
10321: if ($mapurl eq 'default') {
10322: $maptitle = 'Main Course Documents';
10323: }
10324: $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
10325: &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
10326: }
10327: unless ($mapurl eq 'default') {
10328: $path = 'default&'.
10329: &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
10330: ':::::&'.$path;
10331: }
10332: }
10333: return $path;
10334: }
10335:
1.614 albertel 10336: sub get_slot {
10337: my ($which,$cnum,$cdom)=@_;
10338: if (!$cnum || !$cdom) {
1.790 albertel 10339: (undef,my $courseid)=&whichuser();
1.620 albertel 10340: $cdom=$env{'course.'.$courseid.'.domain'};
10341: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 10342: }
1.703 albertel 10343: my $key=join("\0",'slots',$cdom,$cnum,$which);
10344: my %slotinfo;
10345: if (exists($remembered{$key})) {
10346: $slotinfo{$which} = $remembered{$key};
10347: } else {
10348: %slotinfo=&get('slots',[$which],$cdom,$cnum);
10349: &Apache::lonhomework::showhash(%slotinfo);
10350: my ($tmp)=keys(%slotinfo);
10351: if ($tmp=~/^error:/) { return (); }
10352: $remembered{$key} = $slotinfo{$which};
10353: }
1.616 albertel 10354: if (ref($slotinfo{$which}) eq 'HASH') {
10355: return %{$slotinfo{$which}};
10356: }
10357: return $slotinfo{$which};
1.614 albertel 10358: }
1.1150 raeburn 10359:
10360: sub get_reservable_slots {
10361: my ($cnum,$cdom,$uname,$udom) = @_;
10362: my $now = time;
10363: my $reservable_info;
10364: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
10365: if (exists($remembered{$key})) {
10366: $reservable_info = $remembered{$key};
10367: } else {
10368: my %resv;
10369: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
10370: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
10371: $reservable_info = \%resv;
10372: $remembered{$key} = $reservable_info;
10373: }
10374: return $reservable_info;
10375: }
10376:
10377: sub get_course_slots {
10378: my ($cnum,$cdom) = @_;
10379: my $hashid=$cnum.':'.$cdom;
10380: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
10381: if (defined($cached)) {
10382: if (ref($result) eq 'HASH') {
10383: return %{$result};
10384: }
10385: } else {
10386: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
10387: my ($tmp) = keys(%slots);
10388: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
10389: &Apache::lonnet::do_cache_new('allslots',$hashid,\%slots,600);
10390: return %slots;
10391: }
10392: }
10393: return;
10394: }
10395:
10396: sub devalidate_slots_cache {
10397: my ($cnum,$cdom)=@_;
10398: my $hashid=$cnum.':'.$cdom;
10399: &devalidate_cache_new('allslots',$hashid);
10400: }
10401:
1.1172.2.8 raeburn 10402: sub get_coursechange {
10403: my ($cdom,$cnum) = @_;
10404: if ($cdom eq '' || $cnum eq '') {
10405: return unless ($env{'request.course.id'});
10406: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
10407: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
10408: }
10409: my $hashid=$cdom.'_'.$cnum;
10410: my ($change,$cached)=&is_cached_new('crschange',$hashid);
10411: if ((defined($cached)) && ($change ne '')) {
10412: return $change;
10413: } else {
10414: my %crshash;
10415: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
10416: if ($crshash{'internal.contentchange'} eq '') {
10417: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
10418: if ($change eq '') {
10419: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
10420: $change = $crshash{'internal.created'};
10421: }
10422: } else {
10423: $change = $crshash{'internal.contentchange'};
10424: }
10425: my $cachetime = 600;
10426: &do_cache_new('crschange',$hashid,$change,$cachetime);
10427: }
10428: return $change;
10429: }
10430:
10431: sub devalidate_coursechange_cache {
10432: my ($cnum,$cdom)=@_;
10433: my $hashid=$cnum.':'.$cdom;
10434: &devalidate_cache_new('crschange',$hashid);
10435: }
10436:
1.31 www 10437: # ------------------------------------------------- Update symbolic store links
10438:
10439: sub symblist {
10440: my ($mapname,%newhash)=@_;
1.438 www 10441: $mapname=&deversion(&declutter($mapname));
1.31 www 10442: my %hash;
1.620 albertel 10443: if (($env{'request.course.fn'}) && (%newhash)) {
10444: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10445: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 10446: foreach my $url (keys(%newhash)) {
1.711 albertel 10447: next if ($url eq 'last_known'
10448: && $env{'form.no_update_last_known'});
10449: $hash{declutter($url)}=&encode_symb($mapname,
10450: $newhash{$url}->[1],
10451: $newhash{$url}->[0]);
1.191 harris41 10452: }
1.31 www 10453: if (untie(%hash)) {
10454: return 'ok';
10455: }
10456: }
10457: }
10458: return 'error';
1.212 www 10459: }
10460:
10461: # --------------------------------------------------------------- Verify a symb
10462:
10463: sub symbverify {
1.1172.2.11 raeburn 10464: my ($symb,$thisurl,$encstate)=@_;
1.510 www 10465: my $thisfn=$thisurl;
1.439 www 10466: $thisfn=&declutter($thisfn);
1.215 www 10467: # direct jump to resource in page or to a sequence - will construct own symbs
10468: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
10469: # check URL part
1.409 www 10470: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 10471:
1.431 www 10472: unless ($url eq $thisfn) { return 0; }
1.213 www 10473:
1.216 www 10474: $symb=&symbclean($symb);
1.510 www 10475: $thisurl=&deversion($thisurl);
1.439 www 10476: $thisfn=&deversion($thisfn);
1.213 www 10477:
10478: my %bighash;
10479: my $okay=0;
1.431 www 10480:
1.620 albertel 10481: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10482: &GDBM_READER(),0640)) {
1.1172.2.13 raeburn 10483: my $noclutter;
1.1032 raeburn 10484: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
10485: $thisurl =~ s/\?.+$//;
1.1172.2.13 raeburn 10486: if ($map =~ m{^uploaded/.+\.page$}) {
10487: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
10488: $thisurl =~ s{^\Qhttp://https://\E}{https://};
10489: $noclutter = 1;
10490: }
10491: }
10492: my $ids;
10493: if ($noclutter) {
10494: $ids=$bighash{'ids_'.$thisurl};
10495: } else {
10496: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 10497: }
1.1102 raeburn 10498: unless ($ids) {
1.1172.2.13 raeburn 10499: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
1.1102 raeburn 10500: $ids=$bighash{$idkey};
1.216 www 10501: }
10502: if ($ids) {
10503: # ------------------------------------------------------------------- Has ID(s)
1.1172.2.13 raeburn 10504: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
10505: $symb =~ s/\?.+$//;
10506: }
1.800 albertel 10507: foreach my $id (split(/\,/,$ids)) {
10508: my ($mapid,$resid)=split(/\./,$id);
1.216 www 10509: if (
10510: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1172.2.13 raeburn 10511: eq $symb) {
1.1172.2.11 raeburn 10512: if (ref($encstate)) {
10513: $$encstate = $bighash{'encrypted_'.$id};
10514: }
1.1172.2.13 raeburn 10515: if (($env{'request.role.adv'}) ||
10516: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
1.1101 raeburn 10517: ($thisurl eq '/adm/navmaps')) {
1.1172.2.13 raeburn 10518: $okay=1;
10519: last;
10520: }
10521: }
10522: }
1.216 www 10523: }
1.213 www 10524: untie(%bighash);
10525: }
10526: return $okay;
1.31 www 10527: }
10528:
1.210 www 10529: # --------------------------------------------------------------- Clean-up symb
10530:
10531: sub symbclean {
10532: my $symb=shift;
1.568 albertel 10533: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 10534: # remove version from map
10535: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 10536:
1.210 www 10537: # remove version from URL
10538: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 10539:
1.507 www 10540: # remove wrapper
10541:
1.510 www 10542: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 10543: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 10544: return $symb;
1.409 www 10545: }
10546:
10547: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 10548:
10549: sub encode_symb {
10550: my ($map,$resid,$url)=@_;
10551: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
10552: }
1.409 www 10553:
10554: sub decode_symb {
1.568 albertel 10555: my $symb=shift;
10556: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
10557: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 10558: return (&fixversion($map),$resid,&fixversion($url));
10559: }
10560:
10561: sub fixversion {
10562: my $fn=shift;
1.609 banghart 10563: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 10564: my %bighash;
10565: my $uri=&clutter($fn);
1.620 albertel 10566: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 10567: # is this cached?
1.599 albertel 10568: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 10569: if (defined($cached)) { return $result; }
10570: # unfortunately not cached, or expired
1.620 albertel 10571: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 10572: &GDBM_READER(),0640)) {
10573: if ($bighash{'version_'.$uri}) {
10574: my $version=$bighash{'version_'.$uri};
1.444 www 10575: unless (($version eq 'mostrecent') ||
10576: ($version==&getversion($uri))) {
1.440 www 10577: $uri=~s/\.(\w+)$/\.$version\.$1/;
10578: }
10579: }
10580: untie %bighash;
1.413 www 10581: }
1.599 albertel 10582: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 10583: }
10584:
10585: sub deversion {
10586: my $url=shift;
10587: $url=~s/\.\d+\.(\w+)$/\.$1/;
10588: return $url;
1.210 www 10589: }
10590:
1.31 www 10591: # ------------------------------------------------------ Return symb list entry
10592:
10593: sub symbread {
1.249 www 10594: my ($thisfn,$donotrecurse)=@_;
1.1172.2.13 raeburn 10595: my $cache_str;
10596: if ($thisfn ne '') {
10597: $cache_str='request.symbread.cached.'.$thisfn;
10598: if ($env{$cache_str} ne '') {
1.1172.2.8 raeburn 10599: return $env{$cache_str};
10600: }
1.1172.2.13 raeburn 10601: } else {
1.242 www 10602: # no filename provided? try from environment
1.620 albertel 10603: if ($env{'request.symb'}) {
1.1172.2.13 raeburn 10604: return $env{$cache_str}=&symbclean($env{'request.symb'});
10605: }
10606: $thisfn=$env{'request.filename'};
1.44 www 10607: }
1.569 albertel 10608: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 10609: # is that filename actually a symb? Verify, clean, and return
10610: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 10611: if (&symbverify($thisfn,$1)) {
1.620 albertel 10612: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 10613: }
1.242 www 10614: }
1.44 www 10615: $thisfn=declutter($thisfn);
1.31 www 10616: my %hash;
1.37 www 10617: my %bighash;
10618: my $syval='';
1.620 albertel 10619: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 10620: my $targetfn = $thisfn;
1.609 banghart 10621: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 10622: $targetfn = 'adm/wrapper/'.$thisfn;
10623: }
1.687 albertel 10624: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
10625: $targetfn=$1;
10626: }
1.620 albertel 10627: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10628: &GDBM_READER(),0640)) {
1.481 raeburn 10629: $syval=$hash{$targetfn};
1.37 www 10630: untie(%hash);
10631: }
10632: # ---------------------------------------------------------- There was an entry
10633: if ($syval) {
1.601 albertel 10634: #unless ($syval=~/\_\d+$/) {
1.620 albertel 10635: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 10636: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10637: #return $env{$cache_str}='';
1.601 albertel 10638: #}
10639: #$syval.=$1;
10640: #}
1.37 www 10641: } else {
10642: # ------------------------------------------------------- Was not in symb table
1.620 albertel 10643: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10644: &GDBM_READER(),0640)) {
1.37 www 10645: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 10646: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 10647: unless ($ids) {
10648: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 10649: }
10650: unless ($ids) {
10651: # alias?
10652: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 10653: }
1.37 www 10654: if ($ids) {
10655: # ------------------------------------------------------------------- Has ID(s)
10656: my @possibilities=split(/\,/,$ids);
1.39 www 10657: if ($#possibilities==0) {
10658: # ----------------------------------------------- There is only one possibility
1.37 www 10659: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 10660: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10661: $resid,$thisfn);
1.249 www 10662: } elsif (!$donotrecurse) {
1.39 www 10663: # ------------------------------------------ There is more than one possibility
10664: my $realpossible=0;
1.800 albertel 10665: foreach my $id (@possibilities) {
10666: my $file=$bighash{'src_'.$id};
1.39 www 10667: if (&allowed('bre',$file)) {
1.800 albertel 10668: my ($mapid,$resid)=split(/\./,$id);
1.39 www 10669: if ($bighash{'map_type_'.$mapid} ne 'page') {
10670: $realpossible++;
1.626 albertel 10671: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10672: $resid,$thisfn);
1.39 www 10673: }
10674: }
1.191 harris41 10675: }
1.39 www 10676: if ($realpossible!=1) { $syval=''; }
1.249 www 10677: } else {
10678: $syval='';
1.37 www 10679: }
10680: }
10681: untie(%bighash)
1.481 raeburn 10682: }
1.31 www 10683: }
1.62 www 10684: if ($syval) {
1.620 albertel 10685: return $env{$cache_str}=$syval;
1.62 www 10686: }
1.31 www 10687: }
1.949 raeburn 10688: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10689: return $env{$cache_str}='';
1.31 www 10690: }
10691:
10692: # ---------------------------------------------------------- Return random seed
10693:
1.32 www 10694: sub numval {
10695: my $txt=shift;
10696: $txt=~tr/A-J/0-9/;
10697: $txt=~tr/a-j/0-9/;
10698: $txt=~tr/K-T/0-9/;
10699: $txt=~tr/k-t/0-9/;
10700: $txt=~tr/U-Z/0-5/;
10701: $txt=~tr/u-z/0-5/;
10702: $txt=~s/\D//g;
1.564 albertel 10703: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 10704: return int($txt);
1.368 albertel 10705: }
10706:
1.484 albertel 10707: sub numval2 {
10708: my $txt=shift;
10709: $txt=~tr/A-J/0-9/;
10710: $txt=~tr/a-j/0-9/;
10711: $txt=~tr/K-T/0-9/;
10712: $txt=~tr/k-t/0-9/;
10713: $txt=~tr/U-Z/0-5/;
10714: $txt=~tr/u-z/0-5/;
10715: $txt=~s/\D//g;
10716: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10717: my $total;
10718: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 10719: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 10720: return int($total);
10721: }
10722:
1.575 albertel 10723: sub numval3 {
10724: use integer;
10725: my $txt=shift;
10726: $txt=~tr/A-J/0-9/;
10727: $txt=~tr/a-j/0-9/;
10728: $txt=~tr/K-T/0-9/;
10729: $txt=~tr/k-t/0-9/;
10730: $txt=~tr/U-Z/0-5/;
10731: $txt=~tr/u-z/0-5/;
10732: $txt=~s/\D//g;
10733: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10734: my $total;
10735: foreach my $val (@txts) { $total+=$val; }
10736: if ($_64bit) { $total=(($total<<32)>>32); }
10737: return $total;
10738: }
10739:
1.675 albertel 10740: sub digest {
10741: my ($data)=@_;
10742: my $digest=&Digest::MD5::md5($data);
10743: my ($a,$b,$c,$d)=unpack("iiii",$digest);
10744: my ($e,$f);
10745: {
10746: use integer;
10747: $e=($a+$b);
10748: $f=($c+$d);
10749: if ($_64bit) {
10750: $e=(($e<<32)>>32);
10751: $f=(($f<<32)>>32);
10752: }
10753: }
10754: if (wantarray) {
10755: return ($e,$f);
10756: } else {
10757: my $g;
10758: {
10759: use integer;
10760: $g=($e+$f);
10761: if ($_64bit) {
10762: $g=(($g<<32)>>32);
10763: }
10764: }
10765: return $g;
10766: }
10767: }
10768:
1.368 albertel 10769: sub latest_rnd_algorithm_id {
1.675 albertel 10770: return '64bit5';
1.366 albertel 10771: }
1.32 www 10772:
1.503 albertel 10773: sub get_rand_alg {
10774: my ($courseid)=@_;
1.790 albertel 10775: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 10776: if ($courseid) {
1.620 albertel 10777: return $env{"course.$courseid.rndseed"};
1.503 albertel 10778: }
10779: return &latest_rnd_algorithm_id();
10780: }
10781:
1.562 albertel 10782: sub validCODE {
10783: my ($CODE)=@_;
10784: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
10785: return 0;
10786: }
10787:
1.491 albertel 10788: sub getCODE {
1.620 albertel 10789: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 10790: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
10791: defined($Apache::lonhomework::parsing_a_task) ) &&
10792: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 10793: return $Apache::lonhomework::history{'resource.CODE'};
10794: }
10795: return undef;
10796: }
1.1133 foxr 10797: #
10798: # Determines the random seed for a specific context:
10799: #
10800: # parameters:
10801: # symb - in course context the symb for the seed.
10802: # course_id - The course id of the form domain_coursenum.
10803: # domain - Domain for the user.
10804: # course - Course for the user.
10805: # cenv - environment of the course.
10806: #
10807: # NOTE:
10808: # All parameters are picked out of the environment if missing
10809: # or not defined.
10810: # If a symb cannot be determined the current time is used instead.
10811: #
10812: # For a given well defined symb, courside, domain, username,
10813: # and course environment, the seed is reproducible.
10814: #
1.31 www 10815: sub rndseed {
1.1133 foxr 10816: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 10817: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 10818: if (!defined($symb)) {
1.366 albertel 10819: unless ($symb=$wsymb) { return time; }
10820: }
1.1146 foxr 10821: if (!defined $courseid) {
10822: $courseid=$wcourseid;
10823: }
10824: if (!defined $domain) { $domain=$wdomain; }
10825: if (!defined $username) { $username=$wusername }
1.1133 foxr 10826:
10827: my $which;
10828: if (defined($cenv->{'rndseed'})) {
10829: $which = $cenv->{'rndseed'};
10830: } else {
10831: $which =&get_rand_alg($courseid);
10832: }
1.491 albertel 10833: if (defined(&getCODE())) {
1.675 albertel 10834: if ($which eq '64bit5') {
10835: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
10836: } elsif ($which eq '64bit4') {
1.575 albertel 10837: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
10838: } else {
10839: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
10840: }
1.675 albertel 10841: } elsif ($which eq '64bit5') {
10842: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 10843: } elsif ($which eq '64bit4') {
10844: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 10845: } elsif ($which eq '64bit3') {
10846: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 10847: } elsif ($which eq '64bit2') {
10848: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 10849: } elsif ($which eq '64bit') {
10850: return &rndseed_64bit($symb,$courseid,$domain,$username);
10851: }
10852: return &rndseed_32bit($symb,$courseid,$domain,$username);
10853: }
10854:
10855: sub rndseed_32bit {
10856: my ($symb,$courseid,$domain,$username)=@_;
10857: {
10858: use integer;
10859: my $symbchck=unpack("%32C*",$symb) << 27;
10860: my $symbseed=numval($symb) << 22;
10861: my $namechck=unpack("%32C*",$username) << 17;
10862: my $nameseed=numval($username) << 12;
10863: my $domainseed=unpack("%32C*",$domain) << 7;
10864: my $courseseed=unpack("%32C*",$courseid);
10865: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 10866: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10867: #&logthis("rndseed :$num:$symb");
1.564 albertel 10868: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 10869: return $num;
10870: }
10871: }
10872:
10873: sub rndseed_64bit {
10874: my ($symb,$courseid,$domain,$username)=@_;
10875: {
10876: use integer;
10877: my $symbchck=unpack("%32S*",$symb) << 21;
10878: my $symbseed=numval($symb) << 10;
10879: my $namechck=unpack("%32S*",$username);
10880:
10881: my $nameseed=numval($username) << 21;
10882: my $domainseed=unpack("%32S*",$domain) << 10;
10883: my $courseseed=unpack("%32S*",$courseid);
10884:
10885: my $num1=$symbchck+$symbseed+$namechck;
10886: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10887: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10888: #&logthis("rndseed :$num:$symb");
1.564 albertel 10889: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 10890: return "$num1,$num2";
1.155 albertel 10891: }
1.366 albertel 10892: }
10893:
1.443 albertel 10894: sub rndseed_64bit2 {
10895: my ($symb,$courseid,$domain,$username)=@_;
10896: {
10897: use integer;
10898: # strings need to be an even # of cahracters long, it it is odd the
10899: # last characters gets thrown away
10900: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10901: my $symbseed=numval($symb) << 10;
10902: my $namechck=unpack("%32S*",$username.' ');
10903:
10904: my $nameseed=numval($username) << 21;
1.501 albertel 10905: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10906: my $courseseed=unpack("%32S*",$courseid.' ');
10907:
10908: my $num1=$symbchck+$symbseed+$namechck;
10909: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10910: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10911: #&logthis("rndseed :$num:$symb");
1.803 albertel 10912: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 10913: return "$num1,$num2";
10914: }
10915: }
10916:
10917: sub rndseed_64bit3 {
10918: my ($symb,$courseid,$domain,$username)=@_;
10919: {
10920: use integer;
10921: # strings need to be an even # of cahracters long, it it is odd the
10922: # last characters gets thrown away
10923: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10924: my $symbseed=numval2($symb) << 10;
10925: my $namechck=unpack("%32S*",$username.' ');
10926:
10927: my $nameseed=numval2($username) << 21;
1.443 albertel 10928: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10929: my $courseseed=unpack("%32S*",$courseid.' ');
10930:
10931: my $num1=$symbchck+$symbseed+$namechck;
10932: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10933: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10934: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 10935: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10936:
1.503 albertel 10937: return "$num1:$num2";
1.443 albertel 10938: }
10939: }
10940:
1.575 albertel 10941: sub rndseed_64bit4 {
10942: my ($symb,$courseid,$domain,$username)=@_;
10943: {
10944: use integer;
10945: # strings need to be an even # of cahracters long, it it is odd the
10946: # last characters gets thrown away
10947: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10948: my $symbseed=numval3($symb) << 10;
10949: my $namechck=unpack("%32S*",$username.' ');
10950:
10951: my $nameseed=numval3($username) << 21;
10952: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10953: my $courseseed=unpack("%32S*",$courseid.' ');
10954:
10955: my $num1=$symbchck+$symbseed+$namechck;
10956: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10957: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10958: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 10959: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10960:
1.575 albertel 10961: return "$num1:$num2";
10962: }
10963: }
10964:
1.675 albertel 10965: sub rndseed_64bit5 {
10966: my ($symb,$courseid,$domain,$username)=@_;
10967: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
10968: return "$num1:$num2";
10969: }
10970:
1.366 albertel 10971: sub rndseed_CODE_64bit {
10972: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 10973: {
1.366 albertel 10974: use integer;
1.443 albertel 10975: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 10976: my $symbseed=numval2($symb);
1.491 albertel 10977: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
10978: my $CODEseed=numval(&getCODE());
1.443 albertel 10979: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 10980: my $num1=$symbseed+$CODEchck;
10981: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 10982: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
10983: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 10984: if ($_64bit) { $num1=(($num1<<32)>>32); }
10985: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 10986: return "$num1:$num2";
1.366 albertel 10987: }
10988: }
10989:
1.575 albertel 10990: sub rndseed_CODE_64bit4 {
10991: my ($symb,$courseid,$domain,$username)=@_;
10992: {
10993: use integer;
10994: my $symbchck=unpack("%32S*",$symb.' ') << 16;
10995: my $symbseed=numval3($symb);
10996: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
10997: my $CODEseed=numval3(&getCODE());
10998: my $courseseed=unpack("%32S*",$courseid.' ');
10999: my $num1=$symbseed+$CODEchck;
11000: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11001: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11002: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 11003: if ($_64bit) { $num1=(($num1<<32)>>32); }
11004: if ($_64bit) { $num2=(($num2<<32)>>32); }
11005: return "$num1:$num2";
11006: }
11007: }
11008:
1.675 albertel 11009: sub rndseed_CODE_64bit5 {
11010: my ($symb,$courseid,$domain,$username)=@_;
11011: my $code = &getCODE();
11012: my ($num1,$num2)=&digest("$symb,$courseid,$code");
11013: return "$num1:$num2";
11014: }
11015:
1.366 albertel 11016: sub setup_random_from_rndseed {
11017: my ($rndseed)=@_;
1.503 albertel 11018: if ($rndseed =~/([,:])/) {
11019: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 11020: &Math::Random::random_set_seed(abs($num1),abs($num2));
11021: } else {
11022: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 11023: }
1.36 albertel 11024: }
11025:
1.474 albertel 11026: sub latest_receipt_algorithm_id {
1.835 albertel 11027: return 'receipt3';
1.474 albertel 11028: }
11029:
1.480 www 11030: sub recunique {
11031: my $fucourseid=shift;
11032: my $unique;
1.835 albertel 11033: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
11034: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11035: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 11036: } else {
11037: $unique=$perlvar{'lonReceipt'};
11038: }
11039: return unpack("%32C*",$unique);
11040: }
11041:
11042: sub recprefix {
11043: my $fucourseid=shift;
11044: my $prefix;
1.835 albertel 11045: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
11046: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11047: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 11048: } else {
11049: $prefix=$perlvar{'lonHostID'};
11050: }
11051: return unpack("%32C*",$prefix);
11052: }
11053:
1.76 www 11054: sub ireceipt {
1.474 albertel 11055: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 11056:
11057: my $return =&recprefix($fucourseid).'-';
11058:
11059: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
11060: $env{'request.state'} eq 'construct') {
11061: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
11062: return $return;
11063: }
11064:
1.76 www 11065: my $cuname=unpack("%32C*",$funame);
11066: my $cudom=unpack("%32C*",$fudom);
11067: my $cucourseid=unpack("%32C*",$fucourseid);
11068: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 11069: my $cunique=&recunique($fucourseid);
1.474 albertel 11070: my $cpart=unpack("%32S*",$part);
1.835 albertel 11071: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
11072:
1.790 albertel 11073: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 11074:
11075: $return.= ($cunique%$cuname+
11076: $cunique%$cudom+
11077: $cusymb%$cuname+
11078: $cusymb%$cudom+
11079: $cucourseid%$cuname+
11080: $cucourseid%$cudom+
11081: $cpart%$cuname+
11082: $cpart%$cudom);
11083: } else {
11084: $return.= ($cunique%$cuname+
11085: $cunique%$cudom+
11086: $cusymb%$cuname+
11087: $cusymb%$cudom+
11088: $cucourseid%$cuname+
11089: $cucourseid%$cudom);
11090: }
11091: return $return;
1.76 www 11092: }
11093:
11094: sub receipt {
1.474 albertel 11095: my ($part)=@_;
1.790 albertel 11096: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 11097: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 11098: }
1.260 ng 11099:
1.790 albertel 11100: sub whichuser {
11101: my ($passedsymb)=@_;
11102: my ($symb,$courseid,$domain,$name,$publicuser);
11103: if (defined($env{'form.grade_symb'})) {
11104: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
11105: my $allowed=&allowed('vgr',$tmp_courseid);
11106: if (!$allowed &&
11107: exists($env{'request.course.sec'}) &&
11108: $env{'request.course.sec'} !~ /^\s*$/) {
11109: $allowed=&allowed('vgr',$tmp_courseid.
11110: '/'.$env{'request.course.sec'});
11111: }
11112: if ($allowed) {
11113: ($symb)=&get_env_multiple('form.grade_symb');
11114: $courseid=$tmp_courseid;
11115: ($domain)=&get_env_multiple('form.grade_domain');
11116: ($name)=&get_env_multiple('form.grade_username');
11117: return ($symb,$courseid,$domain,$name,$publicuser);
11118: }
11119: }
11120: if (!$passedsymb) {
11121: $symb=&symbread();
11122: } else {
11123: $symb=$passedsymb;
11124: }
11125: $courseid=$env{'request.course.id'};
11126: $domain=$env{'user.domain'};
11127: $name=$env{'user.name'};
11128: if ($name eq 'public' && $domain eq 'public') {
11129: if (!defined($env{'form.username'})) {
11130: $env{'form.username'}.=time.rand(10000000);
11131: }
11132: $name.=$env{'form.username'};
11133: }
11134: return ($symb,$courseid,$domain,$name,$publicuser);
11135:
11136: }
11137:
1.36 albertel 11138: # ------------------------------------------------------------ Serves up a file
1.472 albertel 11139: # returns either the contents of the file or
11140: # -1 if the file doesn't exist
1.481 raeburn 11141: #
11142: # if the target is a file that was uploaded via DOCS,
11143: # a check will be made to see if a current copy exists on the local server,
11144: # if it does this will be served, otherwise a copy will be retrieved from
11145: # the home server for the course and stored in /home/httpd/html/userfiles on
11146: # the local server.
1.472 albertel 11147:
1.36 albertel 11148: sub getfile {
1.538 albertel 11149: my ($file) = @_;
1.609 banghart 11150: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 11151: &repcopy($file);
11152: return &readfile($file);
11153: }
11154:
11155: sub repcopy_userfile {
11156: my ($file)=@_;
1.1142 raeburn 11157: my $londocroot = $perlvar{'lonDocRoot'};
11158: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 11159: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 11160: my ($cdom,$cnum,$filename) =
1.811 albertel 11161: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 11162: my $uri="/uploaded/$cdom/$cnum/$filename";
11163: if (-e "$file") {
1.828 www 11164: # we already have a local copy, check it out
1.538 albertel 11165: my @fileinfo = stat($file);
1.828 www 11166: my $rtncode;
11167: my $info;
1.538 albertel 11168: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 11169: if ($lwpresp ne 'ok') {
1.828 www 11170: # there is no such file anymore, even though we had a local copy
1.482 albertel 11171: if ($rtncode eq '404') {
1.538 albertel 11172: unlink($file);
1.482 albertel 11173: }
11174: return -1;
11175: }
11176: if ($info < $fileinfo[9]) {
1.828 www 11177: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 11178: return 'ok';
1.828 www 11179: } else {
11180: # the file is outdated, get rid of it
11181: unlink($file);
1.482 albertel 11182: }
1.828 www 11183: }
11184: # one way or the other, at this point, we don't have the file
11185: # construct the correct path for the file
11186: my @parts = ($cdom,$cnum);
11187: if ($filename =~ m|^(.+)/[^/]+$|) {
11188: push @parts, split(/\//,$1);
11189: }
11190: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
11191: foreach my $part (@parts) {
11192: $path .= '/'.$part;
11193: if (!-e $path) {
11194: mkdir($path,0770);
1.482 albertel 11195: }
11196: }
1.828 www 11197: # now the path exists for sure
11198: # get a user agent
11199: my $ua=new LWP::UserAgent;
11200: my $transferfile=$file.'.in.transfer';
11201: # FIXME: this should flock
11202: if (-e $transferfile) { return 'ok'; }
11203: my $request;
11204: $uri=~s/^\///;
1.980 raeburn 11205: my $homeserver = &homeserver($cnum,$cdom);
11206: my $protocol = $protocol{$homeserver};
11207: $protocol = 'http' if ($protocol ne 'https');
11208: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 11209: my $response=$ua->request($request,$transferfile);
11210: # did it work?
11211: if ($response->is_error()) {
11212: unlink($transferfile);
11213: &logthis("Userfile repcopy failed for $uri");
11214: return -1;
11215: }
11216: # worked, rename the transfer file
11217: rename($transferfile,$file);
1.607 raeburn 11218: return 'ok';
1.481 raeburn 11219: }
11220:
1.517 albertel 11221: sub tokenwrapper {
11222: my $uri=shift;
1.980 raeburn 11223: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 11224: $uri=~s|^/||;
1.620 albertel 11225: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 11226: my $token=$1;
1.552 albertel 11227: my (undef,$udom,$uname,$file)=split('/',$uri,4);
11228: if ($udom && $uname && $file) {
11229: $file=~s|(\?\.*)*$||;
1.949 raeburn 11230: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 11231: my $homeserver = &homeserver($uname,$udom);
11232: my $protocol = $protocol{$homeserver};
11233: $protocol = 'http' if ($protocol ne 'https');
11234: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 11235: (($uri=~/\?/)?'&':'?').'token='.$token.
11236: '&tokenissued='.$perlvar{'lonHostID'};
11237: } else {
11238: return '/adm/notfound.html';
11239: }
11240: }
11241:
1.828 www 11242: # call with reqtype HEAD: get last modification time
11243: # call with reqtype GET: get the file contents
11244: # Do not call this with reqtype GET for large files! It loads everything into memory
11245: #
1.481 raeburn 11246: sub getuploaded {
11247: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
11248: $uri=~s/^\///;
1.980 raeburn 11249: my $homeserver = &homeserver($cnum,$cdom);
11250: my $protocol = $protocol{$homeserver};
11251: $protocol = 'http' if ($protocol ne 'https');
11252: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 11253: my $ua=new LWP::UserAgent;
11254: my $request=new HTTP::Request($reqtype,$uri);
11255: my $response=$ua->request($request);
11256: $$rtncode = $response->code;
1.482 albertel 11257: if (! $response->is_success()) {
11258: return 'failed';
11259: }
11260: if ($reqtype eq 'HEAD') {
1.486 www 11261: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 11262: } elsif ($reqtype eq 'GET') {
11263: $$info = $response->content;
1.472 albertel 11264: }
1.482 albertel 11265: return 'ok';
1.36 albertel 11266: }
11267:
1.481 raeburn 11268: sub readfile {
11269: my $file = shift;
11270: if ( (! -e $file ) || ($file eq '') ) { return -1; };
11271: my $fh;
11272: open($fh,"<$file");
11273: my $a='';
1.800 albertel 11274: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 11275: return $a;
11276: }
11277:
1.36 albertel 11278: sub filelocation {
1.590 banghart 11279: my ($dir,$file) = @_;
11280: my $location;
11281: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 11282:
11283: if ($file =~ m-^/adm/-) {
11284: $file=~s-^/adm/wrapper/-/-;
11285: $file=~s-^/adm/coursedocs/showdoc/-/-;
11286: }
1.882 albertel 11287:
1.1139 www 11288: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 11289: $location = $file;
1.609 banghart 11290: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 11291: my ($udom,$uname,$filename)=
1.811 albertel 11292: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 11293: my $home=&homeserver($uname,$udom);
11294: my $is_me=0;
11295: my @ids=¤t_machine_ids();
11296: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
11297: if ($is_me) {
1.1117 foxr 11298: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 11299: } else {
11300: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
11301: $udom.'/'.$uname.'/'.$filename;
11302: }
1.882 albertel 11303: } elsif ($file =~ m-^/adm/-) {
11304: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 11305: } else {
11306: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 11307: $file=~s:^/(res|priv)/:/:;
11308: my $space=$1;
1.590 banghart 11309: if ( !( $file =~ m:^/:) ) {
11310: $location = $dir. '/'.$file;
11311: } else {
1.1142 raeburn 11312: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 11313: }
1.59 albertel 11314: }
1.590 banghart 11315: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 11316: while ($location=~m{/\.\./}) {
11317: if ($location =~ m{/[^/]+/\.\./}) {
11318: $location=~ s{/[^/]+/\.\./}{/}g;
11319: } else {
11320: $location=~ s{/\.\./}{/}g;
11321: }
11322: } #remove dir/..
1.590 banghart 11323: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
11324: return $location;
1.46 www 11325: }
1.36 albertel 11326:
1.46 www 11327: sub hreflocation {
11328: my ($dir,$file)=@_;
1.980 raeburn 11329: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 11330: $file=filelocation($dir,$file);
1.700 albertel 11331: } elsif ($file=~m-^/adm/-) {
11332: $file=~s-^/adm/wrapper/-/-;
11333: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 11334: }
11335: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
11336: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
11337: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 11338: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
11339: {/uploaded/$1/$2/}x;
1.46 www 11340: }
1.913 albertel 11341: if ($file=~ m{^/userfiles/}) {
11342: $file =~ s{^/userfiles/}{/uploaded/};
11343: }
1.462 albertel 11344: return $file;
1.465 albertel 11345: }
11346:
1.1139 www 11347:
11348:
11349:
11350:
1.465 albertel 11351: sub current_machine_domains {
1.853 albertel 11352: return &machine_domains(&hostname($perlvar{'lonHostID'}));
11353: }
11354:
11355: sub machine_domains {
11356: my ($hostname) = @_;
1.465 albertel 11357: my @domains;
1.838 albertel 11358: my %hostname = &all_hostnames();
1.465 albertel 11359: while( my($id, $name) = each(%hostname)) {
1.467 matthew 11360: # &logthis("-$id-$name-$hostname-");
1.465 albertel 11361: if ($hostname eq $name) {
1.844 albertel 11362: push(@domains,&host_domain($id));
1.465 albertel 11363: }
11364: }
11365: return @domains;
11366: }
11367:
11368: sub current_machine_ids {
1.853 albertel 11369: return &machine_ids(&hostname($perlvar{'lonHostID'}));
11370: }
11371:
11372: sub machine_ids {
11373: my ($hostname) = @_;
11374: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 11375: my @ids;
1.888 albertel 11376: my %name_to_host = &all_names();
1.889 albertel 11377: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
11378: return @{ $name_to_host{$hostname} };
11379: }
11380: return;
1.31 www 11381: }
11382:
1.824 raeburn 11383: sub additional_machine_domains {
11384: my @domains;
11385: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
11386: while( my $line = <$fh>) {
11387: $line =~ s/\s//g;
11388: push(@domains,$line);
11389: }
11390: return @domains;
11391: }
11392:
11393: sub default_login_domain {
11394: my $domain = $perlvar{'lonDefDomain'};
11395: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
11396: foreach my $posdom (¤t_machine_domains(),
11397: &additional_machine_domains()) {
11398: if (lc($posdom) eq lc($testdomain)) {
11399: $domain=$posdom;
11400: last;
11401: }
11402: }
11403: return $domain;
11404: }
11405:
1.31 www 11406: # ------------------------------------------------------------- Declutters URLs
11407:
11408: sub declutter {
11409: my $thisfn=shift;
1.569 albertel 11410: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 11411: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 11412: $thisfn=~s/^\///;
1.697 albertel 11413: $thisfn=~s|^adm/wrapper/||;
11414: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 11415: $thisfn=~s/^res\///;
1.1172 bisitz 11416: $thisfn=~s/^priv\///;
1.1032 raeburn 11417: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
11418: $thisfn=~s/\?.+$//;
11419: }
1.268 www 11420: return $thisfn;
11421: }
11422:
11423: # ------------------------------------------------------------- Clutter up URLs
11424:
11425: sub clutter {
11426: my $thisfn='/'.&declutter(shift);
1.887 albertel 11427: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 11428: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 11429: $thisfn='/res'.$thisfn;
11430: }
1.1031 raeburn 11431: if ($thisfn !~m|^/adm|) {
11432: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 11433: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 11434: } else {
11435: my ($ext) = ($thisfn =~ /\.(\w+)$/);
11436: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 11437: if ($embstyle eq 'ssi'
11438: || ($embstyle eq 'hdn')
11439: || ($embstyle eq 'rat')
11440: || ($embstyle eq 'prv')
11441: || ($embstyle eq 'ign')) {
11442: #do nothing with these
11443: } elsif (($embstyle eq 'img')
1.695 albertel 11444: || ($embstyle eq 'emb')
11445: || ($embstyle eq 'wrp')) {
11446: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 11447: } elsif ($embstyle eq 'unk'
11448: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 11449: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 11450: } else {
1.718 www 11451: # &logthis("Got a blank emb style");
1.695 albertel 11452: }
1.694 albertel 11453: }
11454: }
1.31 www 11455: return $thisfn;
1.12 www 11456: }
11457:
1.787 albertel 11458: sub clutter_with_no_wrapper {
11459: my $uri = &clutter(shift);
11460: if ($uri =~ m-^/adm/-) {
11461: $uri =~ s-^/adm/wrapper/-/-;
11462: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
11463: }
11464: return $uri;
11465: }
11466:
1.557 albertel 11467: sub freeze_escape {
11468: my ($value)=@_;
11469: if (ref($value)) {
11470: $value=&nfreeze($value);
11471: return '__FROZEN__'.&escape($value);
11472: }
11473: return &escape($value);
11474: }
11475:
1.11 www 11476:
1.557 albertel 11477: sub thaw_unescape {
11478: my ($value)=@_;
11479: if ($value =~ /^__FROZEN__/) {
11480: substr($value,0,10,undef);
11481: $value=&unescape($value);
11482: return &thaw($value);
11483: }
11484: return &unescape($value);
11485: }
11486:
1.436 albertel 11487: sub correct_line_ends {
11488: my ($result)=@_;
11489: $$result =~s/\r\n/\n/mg;
11490: $$result =~s/\r/\n/mg;
1.415 albertel 11491: }
1.1 albertel 11492: # ================================================================ Main Program
11493:
1.184 www 11494: sub goodbye {
1.204 albertel 11495: &logthis("Starting Shut down");
1.443 albertel 11496: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 11497: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 11498: #converted
1.599 albertel 11499: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 11500: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
11501: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
11502: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 11503: #1.1 only
1.870 albertel 11504: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
11505: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
11506: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
11507: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
11508: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 11509: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
11510: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 11511: &flushcourselogs();
11512: &logthis("Shutting down");
11513: }
11514:
1.852 albertel 11515: sub get_dns {
1.1172.2.17! raeburn 11516: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 11517: if (!$ignore_cache) {
11518: my ($content,$cached)=
11519: &Apache::lonnet::is_cached_new('dns',$url);
11520: if ($cached) {
1.1172.2.17! raeburn 11521: &$func($content,$hashref);
1.869 albertel 11522: return;
11523: }
11524: }
11525:
11526: my %alldns;
1.852 albertel 11527: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11528: foreach my $dns (<$config>) {
11529: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 11530: my $line = $1;
11531: my ($host,$protocol) = split(/:/,$line);
11532: if ($protocol ne 'https') {
11533: $protocol = 'http';
11534: }
11535: $alldns{$host} = $protocol;
1.869 albertel 11536: }
11537: while (%alldns) {
11538: my ($dns) = keys(%alldns);
1.852 albertel 11539: my $ua=new LWP::UserAgent;
1.1134 raeburn 11540: $ua->timeout(30);
1.979 raeburn 11541: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 11542: my $response=$ua->request($request);
1.979 raeburn 11543: delete($alldns{$dns});
1.852 albertel 11544: next if ($response->is_error());
11545: my @content = split("\n",$response->content);
1.1172.2.17! raeburn 11546: unless ($nocache) {
! 11547: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
! 11548: }
! 11549: &$func(\@content,$hashref);
1.869 albertel 11550: return;
1.852 albertel 11551: }
11552: close($config);
1.871 albertel 11553: my $which = (split('/',$url))[3];
11554: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
11555: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 11556: my @content = <$config>;
1.1172.2.17! raeburn 11557: &$func(\@content,$hashref);
! 11558: return;
! 11559: }
! 11560:
! 11561: # ------------------------------------------------------Get DNS checksums file
! 11562: sub parse_dns_checksums_tab {
! 11563: my ($lines,$hashref) = @_;
! 11564: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
! 11565: my $loncaparev = &get_server_loncaparev($machine_dom);
! 11566: my ($release,$timestamp) = split(/\-/,$loncaparev);
! 11567: my (%chksum,%revnum);
! 11568: if (ref($lines) eq 'ARRAY') {
! 11569: chomp(@{$lines});
! 11570: my $versions = shift(@{$lines});
! 11571: my %supported;
! 11572: if ($versions =~ /^VERSIONS\:([\w\.\,]+)$/) {
! 11573: my $releaseslist = $1;
! 11574: if ($releaseslist =~ /,/) {
! 11575: map { $supported{$_} = 1; } split(/,/,$releaseslist);
! 11576: } elsif ($releaseslist) {
! 11577: $supported{$releaseslist} = 1;
! 11578: }
! 11579: }
! 11580: if ($supported{$release}) {
! 11581: my $matchthis = 0;
! 11582: foreach my $line (@{$lines}) {
! 11583: if ($line =~ /^(\d[\w\.]+)$/) {
! 11584: if ($matchthis) {
! 11585: last;
! 11586: } elsif ($1 eq $release) {
! 11587: $matchthis = 1;
! 11588: }
! 11589: } elsif ($matchthis) {
! 11590: my ($file,$version,$shasum) = split(/,/,$line);
! 11591: $chksum{$file} = $shasum;
! 11592: $revnum{$file} = $version;
! 11593: }
! 11594: }
! 11595: if (ref($hashref) eq 'HASH') {
! 11596: %{$hashref} = (
! 11597: sums => \%chksum,
! 11598: versions => \%revnum,
! 11599: );
! 11600: }
! 11601: }
! 11602: }
1.869 albertel 11603: return;
1.852 albertel 11604: }
1.1172.2.17! raeburn 11605:
! 11606: sub fetch_dns_checksums {
! 11607: my %checksums;
! 11608: &get_dns('/adm/dns/checksums',\&parse_dns_checksums_tab,1,1,
! 11609: \%checksums);
! 11610: return \%checksums;
! 11611: }
! 11612:
1.327 albertel 11613: # ------------------------------------------------------------ Read domain file
11614: {
1.852 albertel 11615: my $loaded;
1.846 albertel 11616: my %domain;
11617:
1.852 albertel 11618: sub parse_domain_tab {
11619: my ($lines) = @_;
11620: foreach my $line (@$lines) {
11621: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 11622:
1.846 albertel 11623: chomp($line);
1.852 albertel 11624: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 11625: my %this_domain;
11626: foreach my $field ('description', 'auth_def', 'auth_arg_def',
11627: 'lang_def', 'city', 'longi', 'lati',
11628: 'primary') {
11629: $this_domain{$field} = shift(@elements);
11630: }
11631: $domain{$name} = \%this_domain;
1.852 albertel 11632: }
11633: }
1.864 albertel 11634:
11635: sub reset_domain_info {
11636: undef($loaded);
11637: undef(%domain);
11638: }
11639:
1.852 albertel 11640: sub load_domain_tab {
1.869 albertel 11641: my ($ignore_cache) = @_;
11642: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 11643: my $fh;
11644: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
11645: my @lines = <$fh>;
11646: &parse_domain_tab(\@lines);
1.448 albertel 11647: }
1.852 albertel 11648: close($fh);
11649: $loaded = 1;
1.327 albertel 11650: }
1.846 albertel 11651:
11652: sub domain {
1.852 albertel 11653: &load_domain_tab() if (!$loaded);
11654:
1.846 albertel 11655: my ($name,$what) = @_;
11656: return if ( !exists($domain{$name}) );
11657:
11658: if (!$what) {
11659: return $domain{$name}{'description'};
11660: }
11661: return $domain{$name}{$what};
11662: }
1.974 raeburn 11663:
11664: sub domain_info {
11665: &load_domain_tab() if (!$loaded);
11666: return %domain;
11667: }
11668:
1.327 albertel 11669: }
11670:
11671:
1.1 albertel 11672: # ------------------------------------------------------------- Read hosts file
11673: {
1.838 albertel 11674: my %hostname;
1.844 albertel 11675: my %hostdom;
1.845 albertel 11676: my %libserv;
1.852 albertel 11677: my $loaded;
1.888 albertel 11678: my %name_to_host;
1.1074 raeburn 11679: my %internetdom;
1.1107 raeburn 11680: my %LC_dns_serv;
1.852 albertel 11681:
11682: sub parse_hosts_tab {
11683: my ($file) = @_;
11684: foreach my $configline (@$file) {
11685: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 11686: chomp($configline);
11687: if ($configline =~ /^\^/) {
11688: if ($configline =~ /^\^([\w.\-]+)/) {
11689: $LC_dns_serv{$1} = 1;
11690: }
11691: next;
11692: }
1.1074 raeburn 11693: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 11694: $name=~s/\s//g;
11695: if ($id && $domain && $role && $name) {
11696: $hostname{$id}=$name;
1.888 albertel 11697: push(@{$name_to_host{$name}}, $id);
1.852 albertel 11698: $hostdom{$id}=$domain;
11699: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 11700: if (defined($protocol)) {
11701: if ($protocol eq 'https') {
11702: $protocol{$id} = $protocol;
11703: } else {
11704: $protocol{$id} = 'http';
11705: }
1.968 raeburn 11706: } else {
1.969 raeburn 11707: $protocol{$id} = 'http';
1.968 raeburn 11708: }
1.1074 raeburn 11709: if (defined($intdom)) {
11710: $internetdom{$id} = $intdom;
11711: }
1.852 albertel 11712: }
11713: }
11714: }
1.864 albertel 11715:
11716: sub reset_hosts_info {
1.897 albertel 11717: &purge_remembered();
1.864 albertel 11718: &reset_domain_info();
11719: &reset_hosts_ip_info();
1.892 albertel 11720: undef(%name_to_host);
1.864 albertel 11721: undef(%hostname);
11722: undef(%hostdom);
11723: undef(%libserv);
11724: undef($loaded);
11725: }
1.1 albertel 11726:
1.852 albertel 11727: sub load_hosts_tab {
1.869 albertel 11728: my ($ignore_cache) = @_;
11729: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 11730: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11731: my @config = <$config>;
11732: &parse_hosts_tab(\@config);
11733: close($config);
11734: $loaded=1;
1.1 albertel 11735: }
1.852 albertel 11736:
1.838 albertel 11737: sub hostname {
1.852 albertel 11738: &load_hosts_tab() if (!$loaded);
11739:
1.838 albertel 11740: my ($lonid) = @_;
11741: return $hostname{$lonid};
11742: }
1.845 albertel 11743:
1.838 albertel 11744: sub all_hostnames {
1.852 albertel 11745: &load_hosts_tab() if (!$loaded);
11746:
1.838 albertel 11747: return %hostname;
11748: }
1.845 albertel 11749:
1.888 albertel 11750: sub all_names {
11751: &load_hosts_tab() if (!$loaded);
11752:
11753: return %name_to_host;
11754: }
11755:
1.974 raeburn 11756: sub all_host_domain {
11757: &load_hosts_tab() if (!$loaded);
11758: return %hostdom;
11759: }
11760:
1.845 albertel 11761: sub is_library {
1.852 albertel 11762: &load_hosts_tab() if (!$loaded);
11763:
1.845 albertel 11764: return exists($libserv{$_[0]});
11765: }
11766:
11767: sub all_library {
1.852 albertel 11768: &load_hosts_tab() if (!$loaded);
11769:
1.845 albertel 11770: return %libserv;
11771: }
11772:
1.1062 droeschl 11773: sub unique_library {
11774: #2x reverse removes all hostnames that appear more than once
11775: my %unique = reverse &all_library();
11776: return reverse %unique;
11777: }
11778:
1.841 albertel 11779: sub get_servers {
1.852 albertel 11780: &load_hosts_tab() if (!$loaded);
11781:
1.841 albertel 11782: my ($domain,$type) = @_;
11783: my %possible_hosts = ($type eq 'library') ? %libserv
11784: : %hostname;
11785: my %result;
1.842 albertel 11786: if (ref($domain) eq 'ARRAY') {
11787: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 11788: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 11789: $result{$host} = $hostname;
11790: }
11791: }
11792: } else {
11793: while ( my ($host,$hostname) = each(%possible_hosts)) {
11794: if ($hostdom{$host} eq $domain) {
11795: $result{$host} = $hostname;
11796: }
1.841 albertel 11797: }
11798: }
11799: return %result;
11800: }
1.845 albertel 11801:
1.1062 droeschl 11802: sub get_unique_servers {
11803: my %unique = reverse &get_servers(@_);
11804: return reverse %unique;
11805: }
11806:
1.844 albertel 11807: sub host_domain {
1.852 albertel 11808: &load_hosts_tab() if (!$loaded);
11809:
1.844 albertel 11810: my ($lonid) = @_;
11811: return $hostdom{$lonid};
11812: }
11813:
1.841 albertel 11814: sub all_domains {
1.852 albertel 11815: &load_hosts_tab() if (!$loaded);
11816:
1.841 albertel 11817: my %seen;
11818: my @uniq = grep(!$seen{$_}++, values(%hostdom));
11819: return @uniq;
11820: }
1.1074 raeburn 11821:
11822: sub internet_dom {
11823: &load_hosts_tab() if (!$loaded);
11824:
11825: my ($lonid) = @_;
11826: return $internetdom{$lonid};
11827: }
1.1107 raeburn 11828:
11829: sub is_LC_dns {
11830: &load_hosts_tab() if (!$loaded);
11831:
11832: my ($hostname) = @_;
11833: return exists($LC_dns_serv{$hostname});
11834: }
11835:
1.1 albertel 11836: }
11837:
1.847 albertel 11838: {
11839: my %iphost;
1.856 albertel 11840: my %name_to_ip;
11841: my %lonid_to_ip;
1.869 albertel 11842:
1.847 albertel 11843: sub get_hosts_from_ip {
11844: my ($ip) = @_;
11845: my %iphosts = &get_iphost();
11846: if (ref($iphosts{$ip})) {
11847: return @{$iphosts{$ip}};
11848: }
11849: return;
1.839 albertel 11850: }
1.864 albertel 11851:
11852: sub reset_hosts_ip_info {
11853: undef(%iphost);
11854: undef(%name_to_ip);
11855: undef(%lonid_to_ip);
11856: }
1.856 albertel 11857:
11858: sub get_host_ip {
11859: my ($lonid) = @_;
11860: if (exists($lonid_to_ip{$lonid})) {
11861: return $lonid_to_ip{$lonid};
11862: }
11863: my $name=&hostname($lonid);
11864: my $ip = gethostbyname($name);
11865: return if (!$ip || length($ip) ne 4);
11866: $ip=inet_ntoa($ip);
11867: $name_to_ip{$name} = $ip;
11868: $lonid_to_ip{$lonid} = $ip;
11869: return $ip;
11870: }
1.847 albertel 11871:
11872: sub get_iphost {
1.869 albertel 11873: my ($ignore_cache) = @_;
1.894 albertel 11874:
1.869 albertel 11875: if (!$ignore_cache) {
11876: if (%iphost) {
11877: return %iphost;
11878: }
11879: my ($ip_info,$cached)=
11880: &Apache::lonnet::is_cached_new('iphost','iphost');
11881: if ($cached) {
11882: %iphost = %{$ip_info->[0]};
11883: %name_to_ip = %{$ip_info->[1]};
11884: %lonid_to_ip = %{$ip_info->[2]};
11885: return %iphost;
11886: }
11887: }
1.894 albertel 11888:
11889: # get yesterday's info for fallback
11890: my %old_name_to_ip;
11891: my ($ip_info,$cached)=
11892: &Apache::lonnet::is_cached_new('iphost','iphost');
11893: if ($cached) {
11894: %old_name_to_ip = %{$ip_info->[1]};
11895: }
11896:
1.888 albertel 11897: my %name_to_host = &all_names();
11898: foreach my $name (keys(%name_to_host)) {
1.847 albertel 11899: my $ip;
11900: if (!exists($name_to_ip{$name})) {
11901: $ip = gethostbyname($name);
11902: if (!$ip || length($ip) ne 4) {
1.894 albertel 11903: if (defined($old_name_to_ip{$name})) {
11904: $ip = $old_name_to_ip{$name};
11905: &logthis("Can't find $name defaulting to old $ip");
11906: } else {
11907: &logthis("Name $name no IP found");
11908: next;
11909: }
11910: } else {
11911: $ip=inet_ntoa($ip);
1.847 albertel 11912: }
11913: $name_to_ip{$name} = $ip;
11914: } else {
11915: $ip = $name_to_ip{$name};
1.653 albertel 11916: }
1.888 albertel 11917: foreach my $id (@{ $name_to_host{$name} }) {
11918: $lonid_to_ip{$id} = $ip;
11919: }
11920: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 11921: }
1.869 albertel 11922: &Apache::lonnet::do_cache_new('iphost','iphost',
11923: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 11924: 48*60*60);
1.869 albertel 11925:
1.847 albertel 11926: return %iphost;
1.598 albertel 11927: }
11928:
1.992 raeburn 11929: #
11930: # Given a DNS returns the loncapa host name for that DNS
11931: #
11932: sub host_from_dns {
11933: my ($dns) = @_;
11934: my @hosts;
11935: my $ip;
11936:
1.993 raeburn 11937: if (exists($name_to_ip{$dns})) {
1.992 raeburn 11938: $ip = $name_to_ip{$dns};
11939: }
11940: if (!$ip) {
11941: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
11942: if (length($ip) == 4) {
11943: $ip = &IO::Socket::inet_ntoa($ip);
11944: }
11945: }
11946: if ($ip) {
11947: @hosts = get_hosts_from_ip($ip);
11948: return $hosts[0];
11949: }
11950: return undef;
1.986 foxr 11951: }
1.992 raeburn 11952:
1.1074 raeburn 11953: sub get_internet_names {
11954: my ($lonid) = @_;
11955: return if ($lonid eq '');
11956: my ($idnref,$cached)=
11957: &Apache::lonnet::is_cached_new('internetnames',$lonid);
11958: if ($cached) {
11959: return $idnref;
11960: }
11961: my $ip = &get_host_ip($lonid);
11962: my @hosts = &get_hosts_from_ip($ip);
11963: my %iphost = &get_iphost();
11964: my (@idns,%seen);
11965: foreach my $id (@hosts) {
11966: my $dom = &host_domain($id);
11967: my $prim_id = &domain($dom,'primary');
11968: my $prim_ip = &get_host_ip($prim_id);
11969: next if ($seen{$prim_ip});
11970: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
11971: foreach my $id (@{$iphost{$prim_ip}}) {
11972: my $intdom = &internet_dom($id);
11973: unless (grep(/^\Q$intdom\E$/,@idns)) {
11974: push(@idns,$intdom);
11975: }
11976: }
11977: }
11978: $seen{$prim_ip} = 1;
11979: }
11980: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
11981: }
11982:
1.986 foxr 11983: }
11984:
1.1079 raeburn 11985: sub all_loncaparevs {
11986: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
11987: }
11988:
1.862 albertel 11989: BEGIN {
11990:
11991: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
11992: unless ($readit) {
11993: {
11994: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
11995: %perlvar = (%perlvar,%{$configvars});
11996: }
11997:
11998:
1.1 albertel 11999: # ------------------------------------------------------ Read spare server file
12000: {
1.448 albertel 12001: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 12002:
12003: while (my $configline=<$config>) {
12004: chomp($configline);
1.284 matthew 12005: if ($configline) {
1.784 albertel 12006: my ($host,$type) = split(':',$configline,2);
1.785 albertel 12007: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 12008: push(@{ $spareid{$type} }, $host);
1.1 albertel 12009: }
12010: }
1.448 albertel 12011: close($config);
1.1 albertel 12012: }
1.11 www 12013: # ------------------------------------------------------------ Read permissions
12014: {
1.448 albertel 12015: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 12016:
12017: while (my $configline=<$config>) {
1.448 albertel 12018: chomp($configline);
12019: if ($configline) {
12020: my ($role,$perm)=split(/ /,$configline);
12021: if ($perm ne '') { $pr{$role}=$perm; }
12022: }
1.11 www 12023: }
1.448 albertel 12024: close($config);
1.11 www 12025: }
12026:
12027: # -------------------------------------------- Read plain texts for permissions
12028: {
1.448 albertel 12029: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 12030:
12031: while (my $configline=<$config>) {
1.448 albertel 12032: chomp($configline);
12033: if ($configline) {
1.742 raeburn 12034: my ($short,@plain)=split(/:/,$configline);
12035: %{$prp{$short}} = ();
12036: if (@plain > 0) {
12037: $prp{$short}{'std'} = $plain[0];
12038: for (my $i=1; $i<@plain; $i++) {
12039: $prp{$short}{'alt'.$i} = $plain[$i];
12040: }
12041: }
1.448 albertel 12042: }
1.135 www 12043: }
1.448 albertel 12044: close($config);
1.135 www 12045: }
12046:
12047: # ---------------------------------------------------------- Read package table
12048: {
1.448 albertel 12049: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 12050:
12051: while (my $configline=<$config>) {
1.483 albertel 12052: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 12053: chomp($configline);
12054: my ($short,$plain)=split(/:/,$configline);
12055: my ($pack,$name)=split(/\&/,$short);
12056: if ($plain ne '') {
12057: $packagetab{$pack.'&'.$name.'&name'}=$name;
12058: $packagetab{$short}=$plain;
12059: }
1.11 www 12060: }
1.448 albertel 12061: close($config);
1.329 matthew 12062: }
12063:
1.1073 raeburn 12064: # ---------------------------------------------------------- Read loncaparev table
12065: {
12066: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
12067: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
12068: while (my $configline=<$config>) {
12069: chomp($configline);
12070: my ($hostid,$loncaparev)=split(/:/,$configline);
12071: $loncaparevs{$hostid}=$loncaparev;
12072: }
12073: close($config);
12074: }
12075: }
12076: }
12077:
1.1074 raeburn 12078: # ---------------------------------------------------------- Read serverhostID table
12079: {
12080: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
12081: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
12082: while (my $configline=<$config>) {
12083: chomp($configline);
12084: my ($name,$id)=split(/:/,$configline);
12085: $serverhomeIDs{$name}=$id;
12086: }
12087: close($config);
12088: }
12089: }
12090: }
12091:
1.1079 raeburn 12092: {
12093: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
12094: if (-e $file) {
12095: my $parser = HTML::LCParser->new($file);
12096: while (my $token = $parser->get_token()) {
12097: if ($token->[0] eq 'S') {
12098: my $item = $token->[1];
12099: my $name = $token->[2]{'name'};
12100: my $value = $token->[2]{'value'};
12101: if ($item ne '' && $name ne '' && $value ne '') {
12102: my $release = $parser->get_text();
12103: $release =~ s/(^\s*|\s*$ )//gx;
12104: $needsrelease{$item.':'.$name.':'.$value} = $release;
12105: }
12106: }
12107: }
12108: }
1.1073 raeburn 12109: }
12110:
1.1138 raeburn 12111: # ---------------------------------------------------------- Read managers table
12112: {
12113: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
12114: if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
12115: while (my $configline=<$config>) {
12116: chomp($configline);
12117: next if ($configline =~ /^\#/);
12118: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
12119: $managerstab{$configline} = 1;
12120: }
12121: }
12122: close($config);
12123: }
12124: }
12125: }
12126:
1.329 matthew 12127: # ------------- set up temporary directory
12128: {
1.1117 foxr 12129: $tmpdir = LONCAPA::tempdir();
1.329 matthew 12130:
1.11 www 12131: }
12132:
1.794 albertel 12133: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
12134: 'compress_threshold'=> 20_000,
12135: });
1.185 www 12136:
1.281 www 12137: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 12138: $dumpcount=0;
1.958 www 12139: $locknum=0;
1.22 www 12140:
1.163 harris41 12141: &logtouch();
1.672 albertel 12142: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 12143: $readit=1;
1.564 albertel 12144: {
12145: use integer;
12146: my $test=(2**32)+1;
1.568 albertel 12147: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 12148: &logthis(" Detected 64bit platform ($_64bit)");
12149: }
1.195 www 12150: }
1.1 albertel 12151: }
1.179 www 12152:
1.1 albertel 12153: 1;
1.191 harris41 12154: __END__
12155:
1.243 albertel 12156: =pod
12157:
1.191 harris41 12158: =head1 NAME
12159:
1.243 albertel 12160: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 12161:
12162: =head1 SYNOPSIS
12163:
1.243 albertel 12164: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 12165:
12166: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
12167:
1.243 albertel 12168: Common parameters:
12169:
12170: =over 4
12171:
12172: =item *
12173:
12174: $uname : an internal username (if $cname expecting a course Id specifically)
12175:
12176: =item *
12177:
12178: $udom : a domain (if $cdom expecting a course's domain specifically)
12179:
12180: =item *
12181:
12182: $symb : a resource instance identifier
12183:
12184: =item *
12185:
12186: $namespace : the name of a .db file that contains the data needed or
12187: being set.
12188:
12189: =back
12190:
1.394 bowersj2 12191: =head1 OVERVIEW
1.191 harris41 12192:
1.394 bowersj2 12193: lonnet provides subroutines which interact with the
12194: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
12195: about classes, users, and resources.
1.243 albertel 12196:
12197: For many of these objects you can also use this to store data about
12198: them or modify them in various ways.
1.191 harris41 12199:
1.394 bowersj2 12200: =head2 Symbs
1.191 harris41 12201:
1.394 bowersj2 12202: To identify a specific instance of a resource, LON-CAPA uses symbols
12203: or "symbs"X<symb>. These identifiers are built from the URL of the
12204: map, the resource number of the resource in the map, and the URL of
12205: the resource itself. The latter is somewhat redundant, but might help
12206: if maps change.
12207:
12208: An example is
12209:
12210: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
12211:
12212: The respective map entry is
12213:
12214: <resource id="19" src="/res/msu/korte/tests/part12.problem"
12215: title="Problem 2">
12216: </resource>
12217:
12218: Symbs are used by the random number generator, as well as to store and
12219: restore data specific to a certain instance of for example a problem.
12220:
12221: =head2 Storing And Retrieving Data
12222:
12223: X<store()>X<cstore()>X<restore()>Three of the most important functions
12224: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
12225: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
12226: is is the non-critical message twin of cstore. These functions are for
12227: handlers to store a perl hash to a user's permanent data space in an
12228: easy manner, and to retrieve it again on another call. It is expected
12229: that a handler would use this once at the beginning to retrieve data,
12230: and then again once at the end to send only the new data back.
12231:
12232: The data is stored in the user's data directory on the user's
12233: homeserver under the ID of the course.
12234:
12235: The hash that is returned by restore will have all of the previous
12236: value for all of the elements of the hash.
12237:
12238: Example:
12239:
12240: #creating a hash
12241: my %hash;
12242: $hash{'foo'}='bar';
12243:
12244: #storing it
12245: &Apache::lonnet::cstore(\%hash);
12246:
12247: #changing a value
12248: $hash{'foo'}='notbar';
12249:
12250: #adding a new value
12251: $hash{'bar'}='foo';
12252: &Apache::lonnet::cstore(\%hash);
12253:
12254: #retrieving the hash
12255: my %history=&Apache::lonnet::restore();
12256:
12257: #print the hash
12258: foreach my $key (sort(keys(%history))) {
12259: print("\%history{$key} = $history{$key}");
12260: }
12261:
12262: Will print out:
1.191 harris41 12263:
1.394 bowersj2 12264: %history{1:foo} = bar
12265: %history{1:keys} = foo:timestamp
12266: %history{1:timestamp} = 990455579
12267: %history{2:bar} = foo
12268: %history{2:foo} = notbar
12269: %history{2:keys} = foo:bar:timestamp
12270: %history{2:timestamp} = 990455580
12271: %history{bar} = foo
12272: %history{foo} = notbar
12273: %history{timestamp} = 990455580
12274: %history{version} = 2
12275:
12276: Note that the special hash entries C<keys>, C<version> and
12277: C<timestamp> were added to the hash. C<version> will be equal to the
12278: total number of versions of the data that have been stored. The
12279: C<timestamp> attribute will be the UNIX time the hash was
12280: stored. C<keys> is available in every historical section to list which
12281: keys were added or changed at a specific historical revision of a
12282: hash.
12283:
12284: B<Warning>: do not store the hash that restore returns directly. This
12285: will cause a mess since it will restore the historical keys as if the
12286: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 12287:
1.394 bowersj2 12288: Calling convention:
1.191 harris41 12289:
1.394 bowersj2 12290: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
12291: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 12292:
1.394 bowersj2 12293: For more detailed information, see lonnet specific documentation.
1.191 harris41 12294:
1.394 bowersj2 12295: =head1 RETURN MESSAGES
1.191 harris41 12296:
1.394 bowersj2 12297: =over 4
1.191 harris41 12298:
1.394 bowersj2 12299: =item * B<con_lost>: unable to contact remote host
1.191 harris41 12300:
1.394 bowersj2 12301: =item * B<con_delayed>: unable to contact remote host, message will be delivered
12302: when the connection is brought back up
1.191 harris41 12303:
1.394 bowersj2 12304: =item * B<con_failed>: unable to contact remote host and unable to save message
12305: for later delivery
1.191 harris41 12306:
1.967 bisitz 12307: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 12308:
1.394 bowersj2 12309: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 12310: that was requested
1.191 harris41 12311:
1.243 albertel 12312: =back
1.191 harris41 12313:
1.243 albertel 12314: =head1 PUBLIC SUBROUTINES
1.191 harris41 12315:
1.243 albertel 12316: =head2 Session Environment Functions
1.191 harris41 12317:
1.243 albertel 12318: =over 4
1.191 harris41 12319:
1.394 bowersj2 12320: =item *
12321: X<appenv()>
1.949 raeburn 12322: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 12323: the user envirnoment file, and will be restored for each access this
1.620 albertel 12324: user makes during this session, also modifies the %env for the current
1.949 raeburn 12325: process. Optional rolesarrayref - if defined contains a reference to an array
12326: of roles which are exempt from the restriction on modifying user.role entries
12327: in the user's environment.db and in %env.
1.191 harris41 12328:
12329: =item *
1.394 bowersj2 12330: X<delenv()>
1.987 raeburn 12331: B<delenv($delthis,$regexp)>: removes all items from the session
12332: environment file that begin with $delthis. If the
12333: optional second arg - $regexp - is true, $delthis is treated as a
12334: regular expression, otherwise \Q$delthis\E is used.
12335: The values are also deleted from the current processes %env.
1.191 harris41 12336:
1.795 albertel 12337: =item * get_env_multiple($name)
12338:
12339: gets $name from the %env hash, it seemlessly handles the cases where multiple
12340: values may be defined and end up as an array ref.
12341:
12342: returns an array of values
12343:
1.243 albertel 12344: =back
12345:
12346: =head2 User Information
1.191 harris41 12347:
1.243 albertel 12348: =over 4
1.191 harris41 12349:
12350: =item *
1.394 bowersj2 12351: X<queryauthenticate()>
12352: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 12353: authentication scheme
12354:
12355: =item *
1.394 bowersj2 12356: X<authenticate()>
1.1073 raeburn 12357: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 12358: authenticate user from domain's lib servers (first use the current
12359: one). C<$upass> should be the users password.
1.1073 raeburn 12360: $checkdefauth is optional (value is 1 if a check should be made to
12361: authenticate user using default authentication method, and allow
12362: account creation if username does not have account in the domain).
12363: $clientcancheckhost is optional (value is 1 if checking whether the
12364: server can host will occur on the client side in lonauth.pm).
1.191 harris41 12365:
12366: =item *
1.394 bowersj2 12367: X<homeserver()>
12368: B<homeserver($uname,$udom)>: find the server which has
12369: the user's directory and files (there must be only one), this caches
12370: the answer, and also caches if there is a borken connection.
1.191 harris41 12371:
12372: =item *
1.394 bowersj2 12373: X<idget()>
12374: B<idget($udom,@ids)>: find the usernames behind a list of IDs
12375: (IDs are a unique resource in a domain, there must be only 1 ID per
12376: username, and only 1 username per ID in a specific domain) (returns
12377: hash: id=>name,id=>name)
1.191 harris41 12378:
12379: =item *
1.394 bowersj2 12380: X<idrget()>
12381: B<idrget($udom,@unames)>: find the IDs behind a list of
12382: usernames (returns hash: name=>id,name=>id)
1.191 harris41 12383:
12384: =item *
1.394 bowersj2 12385: X<idput()>
12386: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 12387:
12388: =item *
1.394 bowersj2 12389: X<rolesinit()>
1.1169 droeschl 12390: B<rolesinit($udom,$username)>: get user privileges.
12391: returns user role, first access and timer interval hashes
1.243 albertel 12392:
12393: =item *
1.1171 droeschl 12394: X<privileged()>
12395: B<privileged($username,$domain)>: returns a true if user has a
12396: privileged and active role (i.e. su or dc), false otherwise.
12397:
12398: =item *
1.551 albertel 12399: X<getsection()>
12400: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 12401: course $cname, return section name/number or '' for "not in course"
12402: and '-1' for "no section"
12403:
12404: =item *
1.394 bowersj2 12405: X<userenvironment()>
12406: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 12407: passed in @what from the requested user's environment, returns a hash
12408:
1.858 raeburn 12409: =item *
12410: X<userlog_query()>
1.859 albertel 12411: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
12412: activity.log file. %filters defines filters applied when parsing the
12413: log file. These can be start or end timestamps, or the type of action
12414: - log to look for Login or Logout events, check for Checkin or
12415: Checkout, role for role selection. The response is in the form
12416: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
12417: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 12418:
1.243 albertel 12419: =back
12420:
12421: =head2 User Roles
12422:
12423: =over 4
12424:
12425: =item *
12426:
1.810 raeburn 12427: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 12428: F: full access
12429: U,I,K: authentication modes (cxx only)
12430: '': forbidden
12431: 1: user needs to choose course
12432: 2: browse allowed
1.766 albertel 12433: A: passphrase authentication needed
1.243 albertel 12434:
12435: =item *
12436:
1.1172.2.13 raeburn 12437: constructaccess($url,$setpriv) : check for access to construction space URL
12438:
12439: See if the owner domain and name in the URL match those in the
12440: expected environment. If so, return three element list
12441: ($ownername,$ownerdomain,$ownerhome).
12442:
12443: Otherwise return the null string.
12444:
12445: If second argument 'setpriv' is true, it assigns the privileges,
12446: and returns the same three element list, unless the owner has
12447: blocked "ad hoc" Domain Coordinator access to the Author Space,
12448: in which case the null string is returned.
12449:
12450: =item *
12451:
1.243 albertel 12452: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
12453: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
12454: and course level
12455:
12456: =item *
12457:
1.988 raeburn 12458: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
12459: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 12460: $type is Course (default) or Community.
1.988 raeburn 12461: If $forcedefault evaluates to true, text returned will be default
12462: text for $type. Otherwise, if this is a course, the text returned
12463: will be a custom name for the role (if defined in the course's
12464: environment). If no custom name is defined the default is returned.
12465:
1.832 raeburn 12466: =item *
12467:
1.935 raeburn 12468: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 12469: All arguments are optional. Returns a hash of a roles, either for
12470: co-author/assistant author roles for a user's Construction Space
1.906 albertel 12471: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 12472: In the hash, keys are set to colon-separated $uname,$udom,$role, and
12473: (optionally) if $withsec is true, a fourth colon-separated item - $section.
12474: For each key, value is set to colon-separated start and end times for
12475: the role. If no username and domain are specified, will default to
1.934 raeburn 12476: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 12477: of role statuses (active, future or previous), roles
12478: (e.g., cc,in, st etc.) and domains of the roles which can be used
12479: to restrict the list of roles reported. If no array ref is
12480: provided for types, will default to return only active roles.
1.834 albertel 12481:
1.1172.2.13 raeburn 12482: =item *
12483:
12484: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
12485: user: $uname:$udom has a role in the course: $cdom_$cnum.
12486:
12487: Additional optional arguments are: $type (if role checking is to be restricted
12488: to certain user status types -- previous (expired roles), active (currently
12489: available roles) or future (roles available in the future), and
12490: $hideprivileged -- if true will not report course roles for users who
12491: have active Domain Coordinator or Super User roles.
12492:
1.243 albertel 12493: =back
12494:
12495: =head2 User Modification
12496:
12497: =over 4
12498:
12499: =item *
12500:
1.957 raeburn 12501: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 12502: user for the level given by URL. Optional start and end dates (leave empty
12503: string or zero for "no date")
1.191 harris41 12504:
12505: =item *
12506:
1.243 albertel 12507: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
12508: change a users, password, possible return values are: ok,
12509: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
12510: refused
1.191 harris41 12511:
12512: =item *
12513:
1.243 albertel 12514: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 12515:
12516: =item *
12517:
1.1058 raeburn 12518: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
12519: $forceid,$desiredhome,$email,$inststatus,$candelete) :
12520:
12521: will update user information (firstname,middlename,lastname,generation,
12522: permanentemail), and if forceid is true, student/employee ID also.
12523: A user's institutional affiliation(s) can also be updated.
12524: User information fields will not be overwritten with empty entries
12525: unless the field is included in the $candelete array reference.
12526: This array is included when a single user is modified via "Manage Users",
12527: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 12528:
12529: =item *
12530:
1.286 matthew 12531: modifystudent
12532:
1.957 raeburn 12533: modify a student's enrollment and identification information.
1.286 matthew 12534: The course id is resolved based on the current users environment.
12535: This means the envoking user must be a course coordinator or otherwise
12536: associated with a course.
12537:
1.297 matthew 12538: This call is essentially a wrapper for lonnet::modifyuser and
12539: lonnet::modify_student_enrollment
1.286 matthew 12540:
12541: Inputs:
12542:
12543: =over 4
12544:
1.957 raeburn 12545: =item B<$udom> Student's loncapa domain
1.286 matthew 12546:
1.957 raeburn 12547: =item B<$uname> Student's loncapa login name
1.286 matthew 12548:
1.964 bisitz 12549: =item B<$uid> Student/Employee ID
1.286 matthew 12550:
1.957 raeburn 12551: =item B<$umode> Student's authentication mode
1.286 matthew 12552:
1.957 raeburn 12553: =item B<$upass> Student's password
1.286 matthew 12554:
1.957 raeburn 12555: =item B<$first> Student's first name
1.286 matthew 12556:
1.957 raeburn 12557: =item B<$middle> Student's middle name
1.286 matthew 12558:
1.957 raeburn 12559: =item B<$last> Student's last name
1.286 matthew 12560:
1.957 raeburn 12561: =item B<$gene> Student's generation
1.286 matthew 12562:
1.957 raeburn 12563: =item B<$usec> Student's section in course
1.286 matthew 12564:
12565: =item B<$end> Unix time of the roles expiration
12566:
12567: =item B<$start> Unix time of the roles start date
12568:
12569: =item B<$forceid> If defined, allow $uid to be changed
12570:
12571: =item B<$desiredhome> server to use as home server for student
12572:
1.957 raeburn 12573: =item B<$email> Student's permanent e-mail address
12574:
12575: =item B<$type> Type of enrollment (auto or manual)
12576:
1.963 raeburn 12577: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
12578:
12579: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 12580:
1.963 raeburn 12581: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 12582:
1.963 raeburn 12583: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 12584:
1.963 raeburn 12585: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 12586:
1.286 matthew 12587: =back
1.297 matthew 12588:
12589: =item *
12590:
12591: modify_student_enrollment
12592:
12593: Change a students enrollment status in a class. The environment variable
12594: 'role.request.course' must be defined for this function to proceed.
12595:
12596: Inputs:
12597:
12598: =over 4
12599:
12600: =item $udom, students domain
12601:
12602: =item $uname, students name
12603:
12604: =item $uid, students user id
12605:
12606: =item $first, students first name
12607:
12608: =item $middle
12609:
12610: =item $last
12611:
12612: =item $gene
12613:
12614: =item $usec
12615:
12616: =item $end
12617:
12618: =item $start
12619:
1.957 raeburn 12620: =item $type
12621:
12622: =item $locktype
12623:
12624: =item $cid
12625:
12626: =item $selfenroll
12627:
12628: =item $context
12629:
1.297 matthew 12630: =back
12631:
1.191 harris41 12632:
12633: =item *
12634:
1.243 albertel 12635: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
12636: custom role; give a custom role to a user for the level given by URL. Specify
12637: name and domain of role author, and role name
1.191 harris41 12638:
12639: =item *
12640:
1.243 albertel 12641: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 12642:
12643: =item *
12644:
1.243 albertel 12645: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
12646:
12647: =back
12648:
12649: =head2 Course Infomation
12650:
12651: =over 4
1.191 harris41 12652:
12653: =item *
12654:
1.1118 foxr 12655: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 12656: specified course id, including all environment settings for the
12657: course, the description of the course will be in the hash under the
12658: key 'description'
1.191 harris41 12659:
1.1118 foxr 12660: $options is an optional parameter that if supplied is a hash reference that controls
12661: what how this function works. It has the following key/values:
12662:
12663: =over 4
12664:
12665: =item freshen_cache
12666:
12667: If defined, and the environment cache for the course is valid, it is
12668: returned in the returned hash.
12669:
12670: =item one_time
12671:
12672: If defined, the last cache time is set to _now_
12673:
12674: =item user
12675:
12676: If defined, the supplied username is used instead of the current user.
12677:
12678:
12679: =back
12680:
1.191 harris41 12681: =item *
12682:
1.624 albertel 12683: resdata($name,$domain,$type,@which) : request for current parameter
12684: setting for a specific $type, where $type is either 'course' or 'user',
12685: @what should be a list of parameters to ask about. This routine caches
12686: answers for 5 minutes.
1.243 albertel 12687:
1.877 foxr 12688: =item *
12689:
12690: get_courseresdata($courseid, $domain) : dump the entire course resource
12691: data base, returning a hash that is keyed by the resource name and has
12692: values that are the resource value. I believe that the timestamps and
12693: versions are also returned.
12694:
1.243 albertel 12695: =back
12696:
12697: =head2 Course Modification
12698:
12699: =over 4
1.191 harris41 12700:
12701: =item *
12702:
1.243 albertel 12703: writecoursepref($courseid,%prefs) : write preferences (environment
12704: database) for a course
1.191 harris41 12705:
12706: =item *
12707:
1.1011 raeburn 12708: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
12709:
12710: =item *
12711:
1.1038 raeburn 12712: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 12713:
1.1167 droeschl 12714: =item *
12715:
12716: is_course($courseid), is_course($cdom, $cnum)
12717:
12718: Accepts either a combined $courseid (in the form of domain_courseid) or the
12719: two component version $cdom, $cnum. It checks if the specified course exists.
12720:
12721: Returns:
12722: undef if the course doesn't exist, otherwise
12723: in scalar context the combined courseid.
12724: in list context the two components of the course identifier, domain and
12725: courseid.
12726:
1.243 albertel 12727: =back
12728:
12729: =head2 Resource Subroutines
12730:
12731: =over 4
1.191 harris41 12732:
12733: =item *
12734:
1.243 albertel 12735: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 12736:
12737: =item *
12738:
1.243 albertel 12739: repcopy($filename) : subscribes to the requested file, and attempts to
12740: replicate from the owning library server, Might return
1.607 raeburn 12741: 'unavailable', 'not_found', 'forbidden', 'ok', or
12742: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 12743: resource. Expects the local filesystem pathname
12744: (/home/httpd/html/res/....)
12745:
12746: =back
12747:
12748: =head2 Resource Information
12749:
12750: =over 4
1.191 harris41 12751:
12752: =item *
12753:
1.243 albertel 12754: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
12755: a vairety of different possible values, $varname should be a request
12756: string, and the other parameters can be used to specify who and what
12757: one is asking about.
12758:
12759: Possible values for $varname are environment.lastname (or other item
12760: from the envirnment hash), user.name (or someother aspect about the
12761: user), resource.0.maxtries (or some other part and parameter of a
12762: resource)
1.204 albertel 12763:
12764: =item *
12765:
1.243 albertel 12766: directcondval($number) : get current value of a condition; reads from a state
12767: string
1.204 albertel 12768:
12769: =item *
12770:
1.243 albertel 12771: condval($condidx) : value of condition index based on state
1.204 albertel 12772:
12773: =item *
12774:
1.243 albertel 12775: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
12776: resource's metadata, $what should be either a specific key, or either
12777: 'keys' (to get a list of possible keys) or 'packages' to get a list of
12778: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
12779:
12780: this function automatically caches all requests
1.191 harris41 12781:
12782: =item *
12783:
1.243 albertel 12784: metadata_query($query,$custom,$customshow) : make a metadata query against the
12785: network of library servers; returns file handle of where SQL and regex results
12786: will be stored for query
1.191 harris41 12787:
12788: =item *
12789:
1.243 albertel 12790: symbread($filename) : return symbolic list entry (filename argument optional);
12791: returns the data handle
1.191 harris41 12792:
12793: =item *
12794:
1.1172.2.17! raeburn 12795: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
1.1172.2.11 raeburn 12796: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 12797: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1172.2.11 raeburn 12798: on failure, user must be in a course, as it assumes the existence of
12799: the course initial hash, and uses $env('request.course.id'}. The third
12800: arg is an optional reference to a scalar. If this arg is passed in the
12801: call to symbverify, it will be set to 1 if the symb has been set to be
12802: encrypted; otherwise it will be null.
1.243 albertel 12803:
1.191 harris41 12804: =item *
12805:
1.243 albertel 12806: symbclean($symb) : removes versions numbers from a symb, returns the
12807: cleaned symb
1.191 harris41 12808:
12809: =item *
12810:
1.243 albertel 12811: is_on_map($uri) : checks if the $uri is somewhere on the current
12812: course map, user must be in a course for it to work.
1.191 harris41 12813:
12814: =item *
12815:
1.243 albertel 12816: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 12817:
12818: =item *
12819:
1.243 albertel 12820: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
12821: a random seed, all arguments are optional, if they aren't sent it uses the
12822: environment to derive them. Note: if symb isn't sent and it can't get one
12823: from &symbread it will use the current time as its return value
1.191 harris41 12824:
12825: =item *
12826:
1.243 albertel 12827: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
12828: unfakeable, receipt
1.191 harris41 12829:
12830: =item *
12831:
1.620 albertel 12832: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 12833:
12834: =item *
12835:
1.243 albertel 12836: countacc($url) : count the number of accesses to a given URL
1.191 harris41 12837:
12838: =item *
12839:
1.243 albertel 12840: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 12841:
12842: =item *
12843:
1.243 albertel 12844: checkin($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 $tcrsid)
1.191 harris41 12845:
12846: =item *
12847:
1.243 albertel 12848: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 12849:
12850: =item *
12851:
1.243 albertel 12852: devalidate($symb) : devalidate temporary spreadsheet calculations,
12853: forcing spreadsheet to reevaluate the resource scores next time.
12854:
1.1172.2.13 raeburn 12855: =item *
12856:
12857: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
12858: when viewing in course context.
12859:
12860: input: six args -- filename (decluttered), course number, course domain,
12861: url, symb (if registered) and group (if this is a
12862: group item -- e.g., bulletin board, group page etc.).
12863:
12864: output: array of five scalars --
12865: $cfile -- url for file editing if editable on current server
12866: $home -- homeserver of resource (i.e., for author if published,
12867: or course if uploaded.).
12868: $switchserver -- 1 if server switch will be needed.
12869: $forceedit -- 1 if icon/link should be to go to edit mode
12870: $forceview -- 1 if icon/link should be to go to view mode
12871:
12872: =item *
12873:
12874: is_course_upload($file,$cnum,$cdom)
12875:
12876: Used in course context to determine if current file was uploaded to
12877: the course (i.e., would be found in /userfiles/docs on the course's
12878: homeserver.
12879:
12880: input: 3 args -- filename (decluttered), course number and course domain.
12881: output: boolean -- 1 if file was uploaded.
12882:
1.243 albertel 12883: =back
12884:
12885: =head2 Storing/Retreiving Data
12886:
12887: =over 4
1.191 harris41 12888:
12889: =item *
12890:
1.243 albertel 12891: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
12892: for this url; hashref needs to be given and should be a \%hashname; the
12893: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 12894: be derived from the env
1.191 harris41 12895:
12896: =item *
12897:
1.243 albertel 12898: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
12899: uses critical subroutine
1.191 harris41 12900:
12901: =item *
12902:
1.243 albertel 12903: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
12904: all args are optional
1.191 harris41 12905:
12906: =item *
12907:
1.717 albertel 12908: dumpstore($namespace,$udom,$uname,$regexp,$range) :
12909: dumps the complete (or key matching regexp) namespace into a hash
12910: ($udom, $uname, $regexp, $range are optional) for a namespace that is
12911: normally &store()ed into
12912:
12913: $range should be either an integer '100' (give me the first 100
12914: matching records)
12915: or be two integers sperated by a - with no spaces
12916: '30-50' (give me the 30th through the 50th matching
12917: records)
12918:
12919:
12920: =item *
12921:
12922: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
12923: replaces a &store() version of data with a replacement set of data
12924: for a particular resource in a namespace passed in the $storehash hash
12925: reference
12926:
12927: =item *
12928:
1.243 albertel 12929: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
12930: works very similar to store/cstore, but all data is stored in a
12931: temporary location and can be reset using tmpreset, $storehash should
12932: be a hash reference, returns nothing on success
1.191 harris41 12933:
12934: =item *
12935:
1.243 albertel 12936: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
12937: similar to restore, but all data is stored in a temporary location and
12938: can be reset using tmpreset. Returns a hash of values on success,
12939: error string otherwise.
1.191 harris41 12940:
12941: =item *
12942:
1.243 albertel 12943: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
12944: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 12945:
12946: =item *
12947:
1.243 albertel 12948: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12949: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 12950:
12951: =item *
12952:
1.243 albertel 12953: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
12954: namesp ($udom and $uname are optional)
1.191 harris41 12955:
12956: =item *
12957:
1.702 albertel 12958: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 12959: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 12960: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 12961:
1.702 albertel 12962: $range should be either an integer '100' (give me the first 100
12963: matching records)
12964: or be two integers sperated by a - with no spaces
12965: '30-50' (give me the 30th through the 50th matching
12966: records)
1.449 matthew 12967: =item *
12968:
12969: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
12970: $store can be a scalar, an array reference, or if the amount to be
12971: incremented is > 1, a hash reference.
12972:
12973: ($udom and $uname are optional)
1.191 harris41 12974:
12975: =item *
12976:
1.243 albertel 12977: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
12978: ($udom and $uname are optional)
1.191 harris41 12979:
12980: =item *
12981:
1.243 albertel 12982: cput($namespace,$storehash,$udom,$uname) : critical put
12983: ($udom and $uname are optional)
1.191 harris41 12984:
12985: =item *
12986:
1.748 albertel 12987: newput($namespace,$storehash,$udom,$uname) :
12988:
12989: Attempts to store the items in the $storehash, but only if they don't
12990: currently exist, if this succeeds you can be certain that you have
12991: successfully created a new key value pair in the $namespace db.
12992:
12993:
12994: Args:
12995: $namespace: name of database to store values to
12996: $storehash: hashref to store to the db
12997: $udom: (optional) domain of user containing the db
12998: $uname: (optional) name of user caontaining the db
12999:
13000: Returns:
13001: 'ok' -> succeeded in storing all keys of $storehash
13002: 'key_exists: <key>' -> failed to anything out of $storehash, as at
13003: least <key> already existed in the db (other
13004: requested keys may also already exist)
1.967 bisitz 13005: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 13006: 'con_lost' -> unable to contact request server
13007: 'refused' -> action was not allowed by remote machine
13008:
13009:
13010: =item *
13011:
1.243 albertel 13012: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
13013: reference filled in from namesp (encrypts the return communication)
13014: ($udom and $uname are optional)
1.191 harris41 13015:
13016: =item *
13017:
1.243 albertel 13018: log($udom,$name,$home,$message) : write to permanent log for user; use
13019: critical subroutine
13020:
1.806 raeburn 13021: =item *
13022:
1.860 raeburn 13023: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
13024: array reference filled in from namespace found in domain level on either
13025: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 13026:
13027: =item *
13028:
1.860 raeburn 13029: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
13030: domain level either on specified domain server ($uhome) or primary domain
13031: server ($udom and $uhome are optional)
1.806 raeburn 13032:
1.943 raeburn 13033: =item *
13034:
13035: get_domain_defaults($target_domain) : returns hash with defaults for
13036: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
13037: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
13038: or localauth), initial password or a kerberos realm, language (e.g., en-us).
13039: Values are retrieved from cache (if current), or from domain's configuration.db
13040: (if available), or lastly from values in lonTabs/dns_domain,tab,
13041: or lonTabs/domain.tab.
13042:
13043: %domdefaults = &get_auth_defaults($target_domain);
13044:
1.243 albertel 13045: =back
13046:
13047: =head2 Network Status Functions
13048:
13049: =over 4
1.191 harris41 13050:
13051: =item *
13052:
1.1137 raeburn 13053: dirlist() : return directory list based on URI (first arg).
13054:
13055: Inputs: 1 required, 5 optional.
13056:
13057: =over
13058:
13059: =item
13060: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
13061:
13062: =item
13063: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
13064:
13065: =item
13066: $username - username of user/course to be listed. Extracted from $uri if absent.
13067:
13068: =item
13069: $getpropath - boolean: 1 if prepend path using &propath().
13070:
13071: =item
13072: $getuserdir - boolean: 1 if prepend path for "userfiles".
13073:
13074: =item
13075: $alternateRoot - path to prepend in place of path from $uri.
13076:
13077: =back
13078:
13079: Returns: Array of up to two items.
13080:
13081: =over
13082:
13083: a reference to an array of files/subdirectories
13084:
13085: =over
13086:
13087: Each element in the array of files/subdirectories is a & separated list of
13088: item name and the result of running stat on the item. If dirlist was requested
13089: for a file instead of a directory, the item name will be ''. For a directory
13090: listing, if the item is a metadata file, the element will end &N&M
13091: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
13092: default copyright set (1).
13093:
13094: =back
13095:
13096: a scalar containing error condition (if encountered).
13097:
13098: =over
13099:
13100: =item
13101: no_host (no homeserver identified for $username:$domain).
13102:
13103: =item
13104: no_such_host (server contacted for listing not identified as valid host).
13105:
13106: =item
13107: con_lost (connection to remote server failed).
13108:
13109: =item
13110: refused (invalid $username:$domain received on lond side).
13111:
13112: =item
13113: no_such_dir (directory at specified path on lond side does not exist).
13114:
13115: =item
13116: empty (directory at specified path on lond side is empty).
13117:
13118: =over
13119:
13120: This is currently not encountered because the &ls3, &ls2,
13121: &ls (_handler) routines on the lond side do not filter out
13122: . and .. from a directory listing.
13123:
13124: =back
13125:
13126: =back
13127:
13128: =back
1.191 harris41 13129:
13130: =item *
13131:
1.243 albertel 13132: spareserver() : find server with least workload from spare.tab
13133:
1.986 foxr 13134:
13135: =item *
13136:
13137: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
13138: if there is no corresponding loncapa host.
13139:
1.243 albertel 13140: =back
13141:
1.986 foxr 13142:
1.243 albertel 13143: =head2 Apache Request
13144:
13145: =over 4
1.191 harris41 13146:
13147: =item *
13148:
1.243 albertel 13149: ssi($url,%hash) : server side include, does a complete request cycle on url to
13150: localhost, posts hash
13151:
13152: =back
13153:
13154: =head2 Data to String to Data
13155:
13156: =over 4
1.191 harris41 13157:
13158: =item *
13159:
1.243 albertel 13160: hash2str(%hash) : convert a hash into a string complete with escaping and '='
13161: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 13162:
13163: =item *
13164:
1.243 albertel 13165: hashref2str($hashref) : convert a hashref into a string complete with
13166: escaping and '=' and '&' separators, supports elements that are
13167: arrayrefs and hashrefs
1.191 harris41 13168:
13169: =item *
13170:
1.243 albertel 13171: arrayref2str($arrayref) : convert an arrayref into a string complete
13172: with escaping and '&' separators, supports elements that are arrayrefs
13173: and hashrefs
1.191 harris41 13174:
13175: =item *
13176:
1.243 albertel 13177: str2hash($string) : convert string to hash using unescaping and
13178: splitting on '=' and '&', supports elements that are arrayrefs and
13179: hashrefs
1.191 harris41 13180:
13181: =item *
13182:
1.243 albertel 13183: str2array($string) : convert string to hash using unescaping and
13184: splitting on '&', supports elements that are arrayrefs and hashrefs
13185:
13186: =back
13187:
13188: =head2 Logging Routines
13189:
13190:
13191: These routines allow one to make log messages in the lonnet.log and
13192: lonnet.perm logfiles.
1.191 harris41 13193:
1.1119 foxr 13194: =over 4
13195:
1.191 harris41 13196: =item *
13197:
1.243 albertel 13198: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 13199:
13200: =item *
13201:
1.243 albertel 13202: logthis() : append message to the normal lonnet.log file, it gets
13203: preiodically rolled over and deleted.
1.191 harris41 13204:
13205: =item *
13206:
1.243 albertel 13207: logperm() : append a permanent message to lonnet.perm.log, this log
13208: file never gets deleted by any automated portion of the system, only
13209: messages of critical importance should go in here.
13210:
1.1119 foxr 13211:
1.243 albertel 13212: =back
13213:
13214: =head2 General File Helper Routines
13215:
13216: =over 4
1.191 harris41 13217:
13218: =item *
13219:
1.481 raeburn 13220: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
13221: (a) files in /uploaded
13222: (i) If a local copy of the file exists -
13223: compares modification date of local copy with last-modified date for
13224: definitive version stored on home server for course. If local copy is
13225: stale, requests a new version from the home server and stores it.
13226: If the original has been removed from the home server, then local copy
13227: is unlinked.
13228: (ii) If local copy does not exist -
13229: requests the file from the home server and stores it.
13230:
13231: If $caller is 'uploadrep':
13232: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
13233: for request for files originally uploaded via DOCS.
13234: - returns 'ok' if fresh local copy now available, -1 otherwise.
13235:
13236: Otherwise:
13237: This indicates a call from the content generation phase of the request.
13238: - returns the entire contents of the file or -1.
13239:
13240: (b) files in /res
13241: - returns the entire contents of a file or -1;
13242: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 13243:
1.712 albertel 13244:
13245: =item *
13246:
13247: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
13248: reference
13249:
13250: returns either a stat() list of data about the file or an empty list
13251: if the file doesn't exist or couldn't find out about it (connection
13252: problems or user unknown)
13253:
1.191 harris41 13254: =item *
13255:
1.243 albertel 13256: filelocation($dir,$file) : returns file system location of a file
13257: based on URI; meant to be "fairly clean" absolute reference, $dir is a
13258: directory that relative $file lookups are to looked in ($dir of /a/dir
13259: and a file of ../bob will become /a/bob)
1.191 harris41 13260:
13261: =item *
13262:
13263: hreflocation($dir,$file) : returns file system location or a URL; same as
13264: filelocation except for hrefs
13265:
13266: =item *
13267:
13268: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
13269:
1.243 albertel 13270: =back
13271:
1.608 albertel 13272: =head2 Usererfile file routines (/uploaded*)
13273:
13274: =over 4
13275:
13276: =item *
13277:
13278: userfileupload(): main rotine for putting a file in a user or course's
13279: filespace, arguments are,
13280:
1.620 albertel 13281: formname - required - this is the name of the element in $env where the
1.608 albertel 13282: filename, and the contents of the file to create/modifed exist
1.620 albertel 13283: the filename is in $env{'form.'.$formname.'.filename'} and the
13284: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 13285: context - if coursedoc, store the file in the course of the active role
13286: of the current user;
13287: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
13288: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 13289: subdir - required - subdirectory to put the file in under ../userfiles/
13290: if undefined, it will be placed in "unknown"
13291:
13292: (This routine calls clean_filename() to remove any dangerous
13293: characters from the filename, and then calls finuserfileupload() to
13294: complete the transaction)
13295:
13296: returns either the url of the uploaded file (/uploaded/....) if successful
13297: and /adm/notfound.html if unsuccessful
13298:
13299: =item *
13300:
13301: clean_filename(): routine for cleaing a filename up for storage in
13302: userfile space, argument is:
13303:
13304: filename - proposed filename
13305:
13306: returns: the new clean filename
13307:
13308: =item *
13309:
1.1090 raeburn 13310: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 13311: userspace, probably shouldn't be called directly
13312:
13313: docuname: username or courseid of destination for the file
13314: docudom: domain of user/course of destination for the file
13315: formname: same as for userfileupload()
1.1090 raeburn 13316: fname: filename (including subdirectories) for the file
13317: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
13318: allfiles: reference to hash used to store objects found by parser
13319: codebase: reference to hash used for codebases of java objects found by parser
13320: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
13321: thumbheight: height (pixels) of thumbnail to be created for uploaded image
13322: resizewidth: width to be used to resize image using resizeImage from ImageMagick
13323: resizeheight: height to be used to resize image using resizeImage from ImageMagick
13324: context: if 'overwrite', will move the uploaded file from its temporary location to
13325: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 13326: mimetype: reference to scalar to accommodate mime type determined
13327: from File::MMagic if $parser = parse.
1.608 albertel 13328:
13329: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 13330: and /adm/notfound.html if unsuccessful (or an error message if context
13331: was 'overwrite').
13332:
1.608 albertel 13333:
13334: =item *
13335:
13336: renameuserfile(): renames an existing userfile to a new name
13337:
13338: Args:
13339: docuname: username or courseid of destination for the file
13340: docudom: domain of user/course of destination for the file
13341: old: current file name (including any subdirs under userfiles)
13342: new: desired file name (including any subdirs under userfiles)
13343:
13344: =item *
13345:
13346: mkdiruserfile(): creates a directory is a userfiles dir
13347:
13348: Args:
13349: docuname: username or courseid of destination for the file
13350: docudom: domain of user/course of destination for the file
13351: dir: dir to create (including any subdirs under userfiles)
13352:
13353: =item *
13354:
13355: removeuserfile(): removes a file that exists in userfiles
13356:
13357: Args:
13358: docuname: username or courseid of destination for the file
13359: docudom: domain of user/course of destination for the file
13360: fname: filname to delete (including any subdirs under userfiles)
13361:
13362: =item *
13363:
13364: removeuploadedurl(): convience function for removeuserfile()
13365:
13366: Args:
13367: url: a full /uploaded/... url to delete
13368:
1.747 albertel 13369: =item *
13370:
13371: get_portfile_permissions():
13372: Args:
13373: domain: domain of user or course contain the portfolio files
13374: user: name of user or num of course contain the portfolio files
13375: Returns:
13376: hashref of a dump of the proper file_permissions.db
13377:
13378:
13379: =item *
13380:
13381: get_access_controls():
13382:
13383: Args:
13384: current_permissions: the hash ref returned from get_portfile_permissions()
13385: group: (optional) the group you want the files associated with
13386: file: (optional) the file you want access info on
13387:
13388: Returns:
1.749 raeburn 13389: a hash (keys are file names) of hashes containing
13390: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
13391: values are XML containing access control settings (see below)
1.747 albertel 13392:
13393: Internal notes:
13394:
1.749 raeburn 13395: access controls are stored in file_permissions.db as key=value pairs.
13396: key -> path to file/file_name\0uniqueID:scope_end_start
13397: where scope -> public,guest,course,group,domains or users.
13398: end -> UNIX time for end of access (0 -> no end date)
13399: start -> UNIX time for start of access
13400:
13401: value -> XML description of access control
13402: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
13403: <start></start>
13404: <end></end>
13405:
13406: <password></password> for scope type = guest
13407:
13408: <domain></domain> for scope type = course or group
13409: <number></number>
13410: <roles id="">
13411: <role></role>
13412: <access></access>
13413: <section></section>
13414: <group></group>
13415: </roles>
13416:
13417: <dom></dom> for scope type = domains
13418:
13419: <users> for scope type = users
13420: <user>
13421: <uname></uname>
13422: <udom></udom>
13423: </user>
13424: </users>
13425: </scope>
13426:
13427: Access data is also aggregated for each file in an additional key=value pair:
13428: key -> path to file/file_name\0accesscontrol
13429: value -> reference to hash
13430: hash contains key = value pairs
13431: where key = uniqueID:scope_end_start
13432: value = UNIX time record was last updated
13433:
13434: Used to improve speed of look-ups of access controls for each file.
13435:
13436: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
13437:
1.1172.2.13 raeburn 13438: =item *
13439:
1.749 raeburn 13440: modify_access_controls():
13441:
13442: Modifies access controls for a portfolio file
13443: Args
13444: 1. file name
13445: 2. reference to hash of required changes,
13446: 3. domain
13447: 4. username
13448: where domain,username are the domain of the portfolio owner
13449: (either a user or a course)
13450:
13451: Returns:
13452: 1. result of additions or updates ('ok' or 'error', with error message).
13453: 2. result of deletions ('ok' or 'error', with error message).
13454: 3. reference to hash of any new or updated access controls.
13455: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
13456: key = integer (inbound ID)
1.1172.2.13 raeburn 13457: value = uniqueID
13458:
13459: =item *
13460:
13461: get_timebased_id():
13462:
13463: Attempts to get a unique timestamp-based suffix for use with items added to a
13464: course via the Course Editor (e.g., folders, composite pages,
13465: group bulletin boards).
13466:
13467: Args: (first three required; six others optional)
13468:
13469: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
13470: docssequence, or name of group
13471:
13472: 2. keyid (alphanumeric): name of temporary locking key in hash,
13473: e.g., num, boardids
13474:
13475: 3. namespace: name of gdbm file used to store suffixes already assigned;
13476: file will be named nohist_namespace.db
13477:
13478: 4. cdom: domain of course; default is current course domain from %env
13479:
13480: 5. cnum: course number; default is current course number from %env
13481:
13482: 6. idtype: set to concat if an additional digit is to be appended to the
13483: unix timestamp to form the suffix, if the plain timestamp is already
13484: in use. Default is to not do this, but simply increment the unix
13485: timestamp by 1 until a unique key is obtained.
13486:
13487: 7. who: holder of locking key; defaults to user:domain for user.
13488:
13489: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
13490: retrying); default is 3.
13491:
13492: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
13493:
13494: Returns:
13495:
13496: 1. suffix obtained (numeric)
13497:
13498: 2. result of deleting locking key (ok if deleted, or lock never obtained)
13499:
13500: 3. error: contains (localized) error message if an error occurred.
13501:
1.747 albertel 13502:
1.608 albertel 13503: =back
13504:
1.243 albertel 13505: =head2 HTTP Helper Routines
13506:
13507: =over 4
13508:
1.191 harris41 13509: =item *
13510:
13511: escape() : unpack non-word characters into CGI-compatible hex codes
13512:
13513: =item *
13514:
13515: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
13516:
1.243 albertel 13517: =back
13518:
13519: =head1 PRIVATE SUBROUTINES
13520:
13521: =head2 Underlying communication routines (Shouldn't call)
13522:
13523: =over 4
13524:
13525: =item *
13526:
13527: subreply() : tries to pass a message to lonc, returns con_lost if incapable
13528:
13529: =item *
13530:
13531: reply() : uses subreply to send a message to remote machine, logs all failures
13532:
13533: =item *
13534:
13535: critical() : passes a critical message to another server; if cannot
13536: get through then place message in connection buffer directory and
13537: returns con_delayed, if incapable of saving message, returns
13538: con_failed
13539:
13540: =item *
13541:
13542: reconlonc() : tries to reconnect lonc client processes.
13543:
13544: =back
13545:
13546: =head2 Resource Access Logging
13547:
13548: =over 4
13549:
13550: =item *
13551:
13552: flushcourselogs() : flush (save) buffer logs and access logs
13553:
13554: =item *
13555:
13556: courselog($what) : save message for course in hash
13557:
13558: =item *
13559:
13560: courseacclog($what) : save message for course using &courselog(). Perform
13561: special processing for specific resource types (problems, exams, quizzes, etc).
13562:
1.191 harris41 13563: =item *
13564:
13565: goodbye() : flush course logs and log shutting down; it is called in srm.conf
13566: as a PerlChildExitHandler
1.243 albertel 13567:
13568: =back
13569:
13570: =head2 Other
13571:
13572: =over 4
13573:
13574: =item *
13575:
13576: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 13577:
13578: =back
13579:
13580: =cut
1.877 foxr 13581:
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