Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1121
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1121 ! raeburn 4: # $Id: lonnet.pm,v 1.1120 2011/07/28 18:22:44 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
1.1079 raeburn 79: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease);
1.871 albertel 80:
81: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
82: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
83: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 84: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 85:
1.1 albertel 86: use IO::Socket;
1.31 www 87: use GDBM_File;
1.208 albertel 88: use HTML::LCParser;
1.88 www 89: use Fcntl qw(:flock);
1.870 albertel 90: use Storable qw(thaw nfreeze);
1.539 albertel 91: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 92: use Cache::Memcached;
1.676 albertel 93: use Digest::MD5;
1.790 albertel 94: use Math::Random;
1.1024 raeburn 95: use File::MMagic;
1.807 albertel 96: use LONCAPA qw(:DEFAULT :match);
1.740 www 97: use LONCAPA::Configuration;
1.1117 foxr 98:
1.1090 raeburn 99: use File::Copy;
1.676 albertel 100:
1.195 www 101: my $readit;
1.550 foxr 102: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 103:
1.619 albertel 104: require Exporter;
105:
106: our @ISA = qw (Exporter);
107: our @EXPORT = qw(%env);
108:
1.449 matthew 109:
1.1 albertel 110: # --------------------------------------------------------------------- Logging
1.729 www 111: {
112: my $logid;
113: sub instructor_log {
1.957 raeburn 114: my ($hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
115: if (($cnum eq '') || ($cdom eq '')) {
116: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
117: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
118: }
1.729 www 119: $logid++;
1.957 raeburn 120: my $now = time();
121: my $id=$now.'00000'.$$.'00000'.$logid;
1.729 www 122: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 123: { $id => {
124: 'exe_uname' => $env{'user.name'},
125: 'exe_udom' => $env{'user.domain'},
1.957 raeburn 126: 'exe_time' => $now,
1.730 www 127: 'exe_ip' => $ENV{'REMOTE_ADDR'},
128: 'delflag' => $delflag,
129: 'logentry' => $storehash,
130: 'uname' => $uname,
131: 'udom' => $udom,
132: }
1.957 raeburn 133: },$cdom,$cnum);
1.729 www 134: }
135: }
1.1 albertel 136:
1.163 harris41 137: sub logtouch {
138: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 139: unless (-e "$execdir/logs/lonnet.log") {
140: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 141: close $fh;
142: }
143: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
144: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
145: }
146:
1.1 albertel 147: sub logthis {
148: my $message=shift;
149: my $execdir=$perlvar{'lonDaemons'};
150: my $now=time;
151: my $local=localtime($now);
1.448 albertel 152: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 153: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
154: print $fh $logstring;
1.448 albertel 155: close($fh);
156: }
1.1 albertel 157: return 1;
158: }
159:
160: sub logperm {
161: my $message=shift;
162: my $execdir=$perlvar{'lonDaemons'};
163: my $now=time;
164: my $local=localtime($now);
1.448 albertel 165: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
166: print $fh "$now:$message:$local\n";
167: close($fh);
168: }
1.1 albertel 169: return 1;
170: }
171:
1.850 albertel 172: sub create_connection {
1.853 albertel 173: my ($hostname,$lonid) = @_;
1.851 albertel 174: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 175: Type => SOCK_STREAM,
176: Timeout => 10);
177: return 0 if (!$client);
1.890 albertel 178: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 179: my $result = <$client>;
180: chomp($result);
181: return 1 if ($result eq 'done');
182: return 0;
183: }
184:
1.983 raeburn 185: sub get_server_timezone {
186: my ($cnum,$cdom) = @_;
187: my $home=&homeserver($cnum,$cdom);
188: if ($home ne 'no_host') {
189: my $cachetime = 24*3600;
190: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
191: if (defined($cached)) {
192: return $timezone;
193: } else {
194: my $timezone = &reply('servertimezone',$home);
195: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
196: }
197: }
198: }
1.850 albertel 199:
1.1106 raeburn 200: sub get_server_distarch {
201: my ($lonhost,$ignore_cache) = @_;
202: if (defined($lonhost)) {
203: if (!defined(&hostname($lonhost))) {
204: return;
205: }
206: my $cachetime = 12*3600;
207: if (!$ignore_cache) {
208: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
209: if (defined($cached)) {
210: return $distarch;
211: }
212: }
213: my $rep = &reply('serverdistarch',$lonhost);
214: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
215: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
216: $rep eq '') {
217: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
218: }
219: }
220: return;
221: }
222:
1.993 raeburn 223: sub get_server_loncaparev {
1.1073 raeburn 224: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 225: if (defined($lonhost)) {
226: if (!defined(&hostname($lonhost))) {
227: undef($lonhost);
228: }
229: }
230: if (!defined($lonhost)) {
231: if (defined(&domain($dom,'primary'))) {
232: $lonhost=&domain($dom,'primary');
233: if ($lonhost eq 'no_host') {
234: undef($lonhost);
235: }
236: }
237: }
238: if (defined($lonhost)) {
1.1073 raeburn 239: my $cachetime = 12*3600;
240: if (!$ignore_cache) {
241: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
242: if (defined($cached)) {
243: return $loncaparev;
244: }
245: }
246: my ($answer,$loncaparev);
247: my @ids=¤t_machine_ids();
248: if (grep(/^\Q$lonhost\E$/,@ids)) {
249: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 250: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 251: $loncaparev = $1;
252: }
253: } else {
254: $answer = &reply('serverloncaparev',$lonhost);
255: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
256: if ($caller eq 'loncron') {
257: my $ua=new LWP::UserAgent;
1.1082 raeburn 258: $ua->timeout(4);
1.1073 raeburn 259: my $protocol = $protocol{$lonhost};
260: $protocol = 'http' if ($protocol ne 'https');
261: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
262: my $request=new HTTP::Request('GET',$url);
263: my $response=$ua->request($request);
264: unless ($response->is_error()) {
265: my $content = $response->content;
1.1081 raeburn 266: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 267: $loncaparev = $1;
268: }
269: }
270: } else {
271: $loncaparev = $loncaparevs{$lonhost};
272: }
1.1081 raeburn 273: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 274: $loncaparev = $1;
275: }
1.993 raeburn 276: }
1.1073 raeburn 277: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 278: }
279: }
280:
1.1074 raeburn 281: sub get_server_homeID {
282: my ($hostname,$ignore_cache,$caller) = @_;
283: unless ($ignore_cache) {
284: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
285: if (defined($cached)) {
286: return $serverhomeID;
287: }
288: }
289: my $cachetime = 12*3600;
290: my $serverhomeID;
291: if ($caller eq 'loncron') {
292: my @machine_ids = &machine_ids($hostname);
293: foreach my $id (@machine_ids) {
294: my $response = &reply('serverhomeID',$id);
295: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
296: $serverhomeID = $response;
297: last;
298: }
299: }
300: if ($serverhomeID eq '') {
301: $serverhomeID = $machine_ids[-1];
302: }
303: } else {
304: $serverhomeID = $serverhomeIDs{$hostname};
305: }
306: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
307: }
308:
1.1121 ! raeburn 309: sub get_remote_globals {
! 310: my ($lonhost,$whathash,$ignore_cache) = @_;
! 311: my (%returnhash,%whatneeded);
! 312: if (ref($whathash) eq 'ARRAY') {
! 313: foreach my $what (sort(keys(%{$whathash}))) {
! 314: my $type = $whathash->{$what};
! 315: my $hashid = $lonhost.'-'.$what;
! 316: my ($result,$cached);
! 317: unless ($ignore_cache) {
! 318: ($result,$cached)=&is_cached_new('lonnetglobal',$hashid);
! 319: $returnhash{$what} = $result;
! 320: }
! 321: if (defined($cached)) {
! 322: $returnhash{$what} = $result;
! 323: } else {
! 324: $whatneeded{$what} = $type;
! 325: }
! 326: }
! 327: if (keys(%whatneeded) > 0) {
! 328: my $requested = &freeze_escape(\%whatneeded);
! 329: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
! 330: unless (($rep=~/^refused/) || ($rep=~/^rejected/) || $rep eq 'con_lost')) {
! 331: my @pairs=split(/\&/,$rep);
! 332: if ($rep !~ /^error/) {
! 333: foreach my $item (@pairs) {
! 334: my ($key,$value)=split(/=/,$item,2);
! 335: my $what = &unescape($key);
! 336: my $hashid = $lonhost.'-'.$what;
! 337: $returnhash{$what}=&thaw_unescape($value);
! 338: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
! 339: }
! 340: }
! 341: }
! 342: }
! 343: }
! 344: return %returnhash;
! 345: }
! 346:
1.1 albertel 347: # -------------------------------------------------- Non-critical communication
348: sub subreply {
349: my ($cmd,$server)=@_;
1.838 albertel 350: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 351: #
352: # With loncnew process trimming, there's a timing hole between lonc server
353: # process exit and the master server picking up the listen on the AF_UNIX
354: # socket. In that time interval, a lock file will exist:
355:
356: my $lockfile=$peerfile.".lock";
357: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
358: sleep(1);
359: }
360: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 361: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 362: #
1.550 foxr 363: # We'll give the connection a few tries before abandoning it. If
364: # connection is not possible, we'll con_lost back to the client.
365: #
366: my $client;
367: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
368: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
369: Type => SOCK_STREAM,
370: Timeout => 10);
1.869 albertel 371: if ($client) {
1.550 foxr 372: last; # Connected!
1.850 albertel 373: } else {
1.853 albertel 374: &create_connection(&hostname($server),$server);
1.550 foxr 375: }
1.850 albertel 376: sleep(1); # Try again later if failed connection.
1.550 foxr 377: }
378: my $answer;
379: if ($client) {
1.704 albertel 380: print $client "sethost:$server:$cmd\n";
1.550 foxr 381: $answer=<$client>;
382: if (!$answer) { $answer="con_lost"; }
383: chomp($answer);
384: } else {
385: $answer = 'con_lost'; # Failed connection.
386: }
1.1 albertel 387: return $answer;
388: }
389:
390: sub reply {
391: my ($cmd,$server)=@_;
1.838 albertel 392: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 393: my $answer=subreply($cmd,$server);
1.65 www 394: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 395: &logthis("<font color=\"blue\">WARNING:".
1.12 www 396: " $cmd to $server returned $answer</font>");
397: }
1.1 albertel 398: return $answer;
399: }
400:
401: # ----------------------------------------------------------- Send USR1 to lonc
402:
403: sub reconlonc {
1.891 albertel 404: my ($lonid) = @_;
405: my $hostname = &hostname($lonid);
406: if ($lonid) {
407: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
408: if ($hostname && -e $peerfile) {
409: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
410: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
411: Type => SOCK_STREAM,
412: Timeout => 10);
413: if ($client) {
414: print $client ("reset_retries\n");
415: my $answer=<$client>;
416: #reset just this one.
417: }
418: }
419: return;
420: }
421:
1.836 www 422: &logthis("Trying to reconnect lonc");
1.1 albertel 423: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 424: if (open(my $fh,"<$loncfile")) {
1.1 albertel 425: my $loncpid=<$fh>;
426: chomp($loncpid);
427: if (kill 0 => $loncpid) {
428: &logthis("lonc at pid $loncpid responding, sending USR1");
429: kill USR1 => $loncpid;
430: sleep 1;
1.836 www 431: } else {
1.12 www 432: &logthis(
1.672 albertel 433: "<font color=\"blue\">WARNING:".
1.12 www 434: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 435: }
436: } else {
1.836 www 437: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 438: }
439: }
440:
441: # ------------------------------------------------------ Critical communication
1.12 www 442:
1.1 albertel 443: sub critical {
444: my ($cmd,$server)=@_;
1.838 albertel 445: unless (&hostname($server)) {
1.672 albertel 446: &logthis("<font color=\"blue\">WARNING:".
1.89 www 447: " Critical message to unknown server ($server)</font>");
448: return 'no_such_host';
449: }
1.1 albertel 450: my $answer=reply($cmd,$server);
451: if ($answer eq 'con_lost') {
452: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 453: my $answer=reply($cmd,$server);
1.1 albertel 454: if ($answer eq 'con_lost') {
455: my $now=time;
456: my $middlename=$cmd;
1.5 www 457: $middlename=substr($middlename,0,16);
1.1 albertel 458: $middlename=~s/\W//g;
459: my $dfilename=
1.305 www 460: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
461: $dumpcount++;
1.1 albertel 462: {
1.448 albertel 463: my $dfh;
464: if (open($dfh,">$dfilename")) {
465: print $dfh "$cmd\n";
466: close($dfh);
467: }
1.1 albertel 468: }
469: sleep 2;
470: my $wcmd='';
471: {
1.448 albertel 472: my $dfh;
473: if (open($dfh,"<$dfilename")) {
474: $wcmd=<$dfh>;
475: close($dfh);
476: }
1.1 albertel 477: }
478: chomp($wcmd);
1.7 www 479: if ($wcmd eq $cmd) {
1.672 albertel 480: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 481: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 482: &logperm("D:$server:$cmd");
483: return 'con_delayed';
484: } else {
1.672 albertel 485: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 486: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 487: &logperm("F:$server:$cmd");
488: return 'con_failed';
489: }
490: }
491: }
492: return $answer;
1.405 albertel 493: }
494:
1.755 albertel 495: # ------------------------------------------- check if return value is an error
496:
497: sub error {
498: my ($result) = @_;
1.756 albertel 499: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 500: if ($2 == 2) { return undef; }
501: return $1;
502: }
503: return undef;
504: }
505:
1.783 albertel 506: sub convert_and_load_session_env {
507: my ($lonidsdir,$handle)=@_;
508: my @profile;
509: {
1.917 albertel 510: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
511: if (!$opened) {
1.915 albertel 512: return 0;
513: }
1.783 albertel 514: flock($idf,LOCK_SH);
515: @profile=<$idf>;
516: close($idf);
517: }
518: my %temp_env;
519: foreach my $line (@profile) {
1.786 albertel 520: if ($line !~ m/=/) {
521: return 0;
522: }
1.783 albertel 523: chomp($line);
524: my ($envname,$envvalue)=split(/=/,$line,2);
525: $temp_env{&unescape($envname)} = &unescape($envvalue);
526: }
527: unlink("$lonidsdir/$handle.id");
528: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
529: 0640)) {
530: %disk_env = %temp_env;
531: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
532: untie(%disk_env);
533: }
1.786 albertel 534: return 1;
1.783 albertel 535: }
536:
1.374 www 537: # ------------------------------------------- Transfer profile into environment
1.780 albertel 538: my $env_loaded;
539: sub transfer_profile_to_env {
1.788 albertel 540: my ($lonidsdir,$handle,$force_transfer) = @_;
541: if (!$force_transfer && $env_loaded) { return; }
1.374 www 542:
1.720 albertel 543: if (!defined($lonidsdir)) {
544: $lonidsdir = $perlvar{'lonIDsDir'};
545: }
546: if (!defined($handle)) {
547: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
548: }
549:
1.786 albertel 550: my $convert;
551: {
1.917 albertel 552: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
553: if (!$opened) {
1.915 albertel 554: return;
555: }
1.786 albertel 556: flock($idf,LOCK_SH);
557: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
558: &GDBM_READER(),0640)) {
559: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
560: untie(%disk_env);
561: } else {
562: $convert = 1;
563: }
564: }
565: if ($convert) {
566: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
567: &logthis("Failed to load session, or convert session.");
568: }
1.374 www 569: }
1.783 albertel 570:
1.786 albertel 571: my %remove;
1.783 albertel 572: while ( my $envname = each(%env) ) {
1.433 matthew 573: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
574: if ($time < time-300) {
1.783 albertel 575: $remove{$key}++;
1.433 matthew 576: }
577: }
578: }
1.783 albertel 579:
1.619 albertel 580: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 581: $env_loaded=1;
1.783 albertel 582: foreach my $expired_key (keys(%remove)) {
1.433 matthew 583: &delenv($expired_key);
1.374 www 584: }
1.1 albertel 585: }
586:
1.916 albertel 587: # ---------------------------------------------------- Check for valid session
588: sub check_for_valid_session {
589: my ($r) = @_;
590: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
591: my $lonid=$cookies{'lonID'};
592: return undef if (!$lonid);
593:
594: my $handle=&LONCAPA::clean_handle($lonid->value);
595: my $lonidsdir=$r->dir_config('lonIDsDir');
596: return undef if (!-e "$lonidsdir/$handle.id");
597:
1.917 albertel 598: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
599: return undef if (!$opened);
1.916 albertel 600:
601: flock($idf,LOCK_SH);
602: my %disk_env;
603: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
604: &GDBM_READER(),0640)) {
605: return undef;
606: }
607:
608: if (!defined($disk_env{'user.name'})
609: || !defined($disk_env{'user.domain'})) {
610: return undef;
611: }
612: return $handle;
613: }
614:
1.830 albertel 615: sub timed_flock {
616: my ($file,$lock_type) = @_;
617: my $failed=0;
618: eval {
619: local $SIG{__DIE__}='DEFAULT';
620: local $SIG{ALRM}=sub {
621: $failed=1;
622: die("failed lock");
623: };
624: alarm(13);
625: flock($file,$lock_type);
626: alarm(0);
627: };
628: if ($failed) {
629: return undef;
630: } else {
631: return 1;
632: }
633: }
634:
1.5 www 635: # ---------------------------------------------------------- Append Environment
636:
637: sub appenv {
1.949 raeburn 638: my ($newenv,$roles) = @_;
639: if (ref($newenv) eq 'HASH') {
640: foreach my $key (keys(%{$newenv})) {
641: my $refused = 0;
642: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
643: $refused = 1;
644: if (ref($roles) eq 'ARRAY') {
645: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
646: if (grep(/^\Q$role\E$/,@{$roles})) {
647: $refused = 0;
648: }
649: }
650: }
651: if ($refused) {
652: &logthis("<font color=\"blue\">WARNING: ".
653: "Attempt to modify environment ".$key." to ".$newenv->{$key}
654: .'</font>');
655: delete($newenv->{$key});
656: } else {
657: $env{$key}=$newenv->{$key};
658: }
659: }
660: my $opened = open(my $env_file,'+<',$env{'user.environment'});
661: if ($opened
662: && &timed_flock($env_file,LOCK_EX)
663: &&
664: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
665: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
666: while (my ($key,$value) = each(%{$newenv})) {
667: $disk_env{$key} = $value;
668: }
669: untie(%disk_env);
1.35 www 670: }
1.191 harris41 671: }
1.56 www 672: return 'ok';
673: }
674: # ----------------------------------------------------- Delete from Environment
675:
676: sub delenv {
1.1104 raeburn 677: my ($delthis,$regexp,$roles) = @_;
678: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
679: my $refused = 1;
680: if (ref($roles) eq 'ARRAY') {
681: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
682: if (grep(/^\Q$role\E$/,@{$roles})) {
683: $refused = 0;
684: }
685: }
686: if ($refused) {
687: &logthis("<font color=\"blue\">WARNING: ".
688: "Attempt to delete from environment ".$delthis);
689: return 'error';
690: }
1.56 www 691: }
1.917 albertel 692: my $opened = open(my $env_file,'+<',$env{'user.environment'});
693: if ($opened
1.915 albertel 694: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 695: &&
696: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
697: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 698: foreach my $key (keys(%disk_env)) {
1.987 raeburn 699: if ($regexp) {
700: if ($key=~/^$delthis/) {
701: delete($env{$key});
702: delete($disk_env{$key});
703: }
704: } else {
705: if ($key=~/^\Q$delthis\E/) {
706: delete($env{$key});
707: delete($disk_env{$key});
708: }
709: }
1.448 albertel 710: }
1.783 albertel 711: untie(%disk_env);
1.5 www 712: }
713: return 'ok';
1.369 albertel 714: }
715:
1.790 albertel 716: sub get_env_multiple {
717: my ($name) = @_;
718: my @values;
719: if (defined($env{$name})) {
720: # exists is it an array
721: if (ref($env{$name})) {
722: @values=@{ $env{$name} };
723: } else {
724: $values[0]=$env{$name};
725: }
726: }
727: return(@values);
728: }
729:
1.958 www 730: # ------------------------------------------------------------------- Locking
731:
732: sub set_lock {
733: my ($text)=@_;
734: $locknum++;
735: my $id=$$.'-'.$locknum;
736: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
737: 'session.lock.'.$id => $text});
738: return $id;
739: }
740:
741: sub get_locks {
742: my $num=0;
743: my %texts=();
744: foreach my $lock (split(/\,/,$env{'session.locks'})) {
745: if ($lock=~/\w/) {
746: $num++;
747: $texts{$lock}=$env{'session.lock.'.$lock};
748: }
749: }
750: return ($num,%texts);
751: }
752:
753: sub remove_lock {
754: my ($id)=@_;
755: my $newlocks='';
756: foreach my $lock (split(/\,/,$env{'session.locks'})) {
757: if (($lock=~/\w/) && ($lock ne $id)) {
758: $newlocks.=','.$lock;
759: }
760: }
761: &appenv({'session.locks' => $newlocks});
762: &delenv('session.lock.'.$id);
763: }
764:
765: sub remove_all_locks {
766: my $activelocks=$env{'session.locks'};
767: foreach my $lock (split(/\,/,$env{'session.locks'})) {
768: if ($lock=~/\w/) {
769: &remove_lock($lock);
770: }
771: }
772: }
773:
774:
1.369 albertel 775: # ------------------------------------------ Find out current server userload
776: sub userload {
777: my $numusers=0;
778: {
779: opendir(LONIDS,$perlvar{'lonIDsDir'});
780: my $filename;
781: my $curtime=time;
782: while ($filename=readdir(LONIDS)) {
1.925 albertel 783: next if ($filename eq '.' || $filename eq '..');
784: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 785: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 786: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 787: }
788: closedir(LONIDS);
789: }
790: my $userloadpercent=0;
791: my $maxuserload=$perlvar{'lonUserLoadLim'};
792: if ($maxuserload) {
1.371 albertel 793: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 794: }
1.372 albertel 795: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 796: return $userloadpercent;
1.283 www 797: }
798:
1.1 albertel 799: # ------------------------------ Find server with least workload from spare.tab
1.11 www 800:
1.1 albertel 801: sub spareserver {
1.1083 raeburn 802: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 803: my $spare_server;
1.370 albertel 804: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 805: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
806: : $userloadpercent;
1.1083 raeburn 807: my ($uint_dom,$remotesessions);
808: if (($udom ne '') && (&domain($udom) ne '')) {
809: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
810: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
811: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
812: $remotesessions = $udomdefaults{'remotesessions'};
813: }
1.784 albertel 814: foreach my $try_server (@{ $spareid{'primary'} }) {
1.1083 raeburn 815: if ($uint_dom) {
816: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
817: $try_server));
818: }
1.784 albertel 819: ($spare_server, $lowest_load) =
820: &compare_server_load($try_server, $spare_server, $lowest_load);
821: }
822:
823: my $found_server = ($spare_server ne '' && $lowest_load < 100);
824:
825: if (!$found_server) {
826: foreach my $try_server (@{ $spareid{'default'} }) {
1.1083 raeburn 827: if ($uint_dom) {
828: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
829: $try_server));
830: }
1.784 albertel 831: ($spare_server, $lowest_load) =
832: &compare_server_load($try_server, $spare_server, $lowest_load);
833: }
834: }
835:
836: if (!$want_server_name) {
1.968 raeburn 837: my $protocol = 'http';
838: if ($protocol{$spare_server} eq 'https') {
839: $protocol = $protocol{$spare_server};
840: }
1.1001 raeburn 841: if (defined($spare_server)) {
842: my $hostname = &hostname($spare_server);
1.1083 raeburn 843: if (defined($hostname)) {
1.1001 raeburn 844: $spare_server = $protocol.'://'.$hostname;
845: }
846: }
1.784 albertel 847: }
848: return $spare_server;
849: }
850:
851: sub compare_server_load {
852: my ($try_server, $spare_server, $lowest_load) = @_;
853:
854: my $loadans = &reply('load', $try_server);
855: my $userloadans = &reply('userload',$try_server);
856:
857: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 858: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 859: }
860:
861: my $load;
862: if ($loadans =~ /\d/) {
863: if ($userloadans =~ /\d/) {
864: #both are numbers, pick the bigger one
865: $load = ($loadans > $userloadans) ? $loadans
866: : $userloadans;
1.411 albertel 867: } else {
1.784 albertel 868: $load = $loadans;
1.411 albertel 869: }
1.784 albertel 870: } else {
871: $load = $userloadans;
872: }
873:
874: if (($load =~ /\d/) && ($load < $lowest_load)) {
875: $spare_server = $try_server;
876: $lowest_load = $load;
1.370 albertel 877: }
1.784 albertel 878: return ($spare_server,$lowest_load);
1.202 matthew 879: }
1.914 albertel 880:
881: # --------------------------- ask offload servers if user already has a session
882: sub find_existing_session {
883: my ($udom,$uname) = @_;
884: foreach my $try_server (@{ $spareid{'primary'} },
885: @{ $spareid{'default'} }) {
886: return $try_server if (&has_user_session($try_server, $udom, $uname));
887: }
888: return;
889: }
890:
891: # -------------------------------- ask if server already has a session for user
892: sub has_user_session {
893: my ($lonid,$udom,$uname) = @_;
894: my $result = &reply(join(':','userhassession',
895: map {&escape($_)} ($udom,$uname)),$lonid);
896: return 1 if ($result eq 'ok');
897:
898: return 0;
899: }
900:
1.1076 raeburn 901: # --------- determine least loaded server in a user's domain which allows login
902:
903: sub choose_server {
1.1115 raeburn 904: my ($udom,$checkloginvia) = @_;
1.1076 raeburn 905: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 906: my %servers = &get_servers($udom);
1.1076 raeburn 907: my $lowest_load = 30000;
1.1116 raeburn 908: my ($login_host,$hostname,$portal_path);
1.1076 raeburn 909: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 910: my $loginvia;
911: if ($checkloginvia) {
912: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 913: if ($loginvia) {
914: my ($server,$path) = split(/:/,$loginvia);
915: ($login_host, $lowest_load) =
916: &compare_server_load($server, $login_host, $lowest_load);
917: if ($login_host eq $server) {
918: $portal_path = $path;
919: }
920: } else {
921: ($login_host, $lowest_load) =
922: &compare_server_load($lonhost, $login_host, $lowest_load);
923: if ($login_host eq $lonhost) {
924: $portal_path = '';
925: }
926: }
927: } else {
1.1076 raeburn 928: ($login_host, $lowest_load) =
1.1116 raeburn 929: &compare_server_load($lonhost, $login_host, $lowest_load);
1.1076 raeburn 930: }
931: }
932: if ($login_host ne '') {
1.1116 raeburn 933: $hostname = &hostname($login_host);
1.1076 raeburn 934: }
1.1116 raeburn 935: return ($login_host,$hostname,$portal_path);
1.1076 raeburn 936: }
937:
1.202 matthew 938: # --------------------------------------------- Try to change a user's password
939:
940: sub changepass {
1.799 raeburn 941: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 942: $currentpass = &escape($currentpass);
943: $newpass = &escape($newpass);
1.1030 raeburn 944: my $lonhost = $perlvar{'lonHostID'};
945: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 946: $server);
947: if (! $answer) {
948: &logthis("No reply on password change request to $server ".
949: "by $uname in domain $udom.");
950: } elsif ($answer =~ "^ok") {
951: &logthis("$uname in $udom successfully changed their password ".
952: "on $server.");
953: } elsif ($answer =~ "^pwchange_failure") {
954: &logthis("$uname in $udom was unable to change their password ".
955: "on $server. The action was blocked by either lcpasswd ".
956: "or pwchange");
957: } elsif ($answer =~ "^non_authorized") {
958: &logthis("$uname in $udom did not get their password correct when ".
959: "attempting to change it on $server.");
960: } elsif ($answer =~ "^auth_mode_error") {
961: &logthis("$uname in $udom attempted to change their password despite ".
962: "not being locally or internally authenticated on $server.");
963: } elsif ($answer =~ "^unknown_user") {
964: &logthis("$uname in $udom attempted to change their password ".
965: "on $server but were unable to because $server is not ".
966: "their home server.");
967: } elsif ($answer =~ "^refused") {
968: &logthis("$server refused to change $uname in $udom password because ".
969: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 970: } elsif ($answer =~ "invalid_client") {
971: &logthis("$server refused to change $uname in $udom password because ".
972: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 973: }
974: return $answer;
1.1 albertel 975: }
976:
1.169 harris41 977: # ----------------------- Try to determine user's current authentication scheme
978:
979: sub queryauthenticate {
980: my ($uname,$udom)=@_;
1.456 albertel 981: my $uhome=&homeserver($uname,$udom);
982: if (!$uhome) {
983: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
984: return 'no_host';
985: }
986: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
987: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
988: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 989: }
1.456 albertel 990: return $answer;
1.169 harris41 991: }
992:
1.1 albertel 993: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 994:
1.1 albertel 995: sub authenticate {
1.1073 raeburn 996: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 997: $upass=&escape($upass);
998: $uname= &LONCAPA::clean_username($uname);
1.836 www 999: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1000: my $newhome;
1.836 www 1001: if ((!$uhome) || ($uhome eq 'no_host')) {
1002: # Maybe the machine was offline and only re-appeared again recently?
1003: &reconlonc();
1004: # One more
1.952 raeburn 1005: $uhome=&homeserver($uname,$udom,1);
1006: if (($uhome eq 'no_host') && $checkdefauth) {
1007: if (defined(&domain($udom,'primary'))) {
1008: $newhome=&domain($udom,'primary');
1009: }
1010: if ($newhome ne '') {
1011: $uhome = $newhome;
1012: }
1013: }
1.836 www 1014: if ((!$uhome) || ($uhome eq 'no_host')) {
1015: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1016: return 'no_host';
1017: }
1.1 albertel 1018: }
1.1073 raeburn 1019: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1020: if ($answer eq 'authorized') {
1.952 raeburn 1021: if ($newhome) {
1022: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1023: return 'no_account_on_host';
1024: } else {
1025: &logthis("User $uname at $udom authorized by $uhome");
1026: return $uhome;
1027: }
1.471 albertel 1028: }
1029: if ($answer eq 'non_authorized') {
1030: &logthis("User $uname at $udom rejected by $uhome");
1031: return 'no_host';
1.9 www 1032: }
1.471 albertel 1033: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1034: return 'no_host';
1035: }
1036:
1.1073 raeburn 1037: sub can_host_session {
1.1074 raeburn 1038: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1039: my $canhost = 1;
1.1074 raeburn 1040: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1041: if (ref($remotesessions) eq 'HASH') {
1042: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1043: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1044: $canhost = 0;
1045: } else {
1046: $canhost = 1;
1047: }
1048: }
1049: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1050: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1051: $canhost = 1;
1052: } else {
1053: $canhost = 0;
1054: }
1055: }
1056: if ($canhost) {
1057: if ($remotesessions->{'version'} ne '') {
1058: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1059: if ($reqmajor ne '' && $reqminor ne '') {
1060: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1061: my $major = $1;
1062: my $minor = $2;
1063: if (($major < $reqmajor ) ||
1064: (($major == $reqmajor) && ($minor < $reqminor))) {
1065: $canhost = 0;
1066: }
1067: } else {
1068: $canhost = 0;
1069: }
1070: }
1071: }
1072: }
1073: }
1074: if ($canhost) {
1075: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1076: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1077: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1078: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1079: if (($uint_dom ne '') &&
1080: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1081: $canhost = 0;
1082: } else {
1083: $canhost = 1;
1084: }
1085: }
1086: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1087: if (($uint_dom ne '') &&
1088: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1089: $canhost = 1;
1090: } else {
1091: $canhost = 0;
1092: }
1093: }
1094: }
1095: }
1096: return $canhost;
1097: }
1098:
1.1083 raeburn 1099: sub spare_can_host {
1100: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1101: my $canhost=1;
1102: my @intdoms;
1103: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1104: if (ref($internet_names) eq 'ARRAY') {
1105: @intdoms = @{$internet_names};
1106: }
1107: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1108: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1109: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1110: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1111: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1112: $canhost = &can_host_session($udom,$try_server,$remoterev,
1113: $remotesessions,
1114: $defdomdefaults{'hostedsessions'});
1115: }
1116: return $canhost;
1117: }
1118:
1.1 albertel 1119: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1120:
1.599 albertel 1121: my %homecache;
1.1 albertel 1122: sub homeserver {
1.230 stredwic 1123: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1124: my $index="$uname:$udom";
1.426 albertel 1125:
1.599 albertel 1126: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1127:
1128: my %servers = &get_servers($udom,'library');
1129: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1130: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1131: exists($badServerCache{$tryserver}));
1.841 albertel 1132:
1133: my $answer=reply("home:$udom:$uname",$tryserver);
1134: if ($answer eq 'found') {
1135: delete($badServerCache{$tryserver});
1136: return $homecache{$index}=$tryserver;
1137: } elsif ($answer eq 'no_host') {
1138: $badServerCache{$tryserver}=1;
1139: }
1.1 albertel 1140: }
1141: return 'no_host';
1.70 www 1142: }
1143:
1144: # ------------------------------------- Find the usernames behind a list of IDs
1145:
1146: sub idget {
1147: my ($udom,@ids)=@_;
1148: my %returnhash=();
1149:
1.841 albertel 1150: my %servers = &get_servers($udom,'library');
1151: foreach my $tryserver (keys(%servers)) {
1152: my $idlist=join('&',@ids);
1153: $idlist=~tr/A-Z/a-z/;
1154: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1155: my @answer=();
1156: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1157: @answer=split(/\&/,$reply);
1158: } ;
1159: my $i;
1160: for ($i=0;$i<=$#ids;$i++) {
1161: if ($answer[$i]) {
1162: $returnhash{$ids[$i]}=$answer[$i];
1163: }
1164: }
1165: }
1.70 www 1166: return %returnhash;
1167: }
1168:
1169: # ------------------------------------- Find the IDs behind a list of usernames
1170:
1171: sub idrget {
1172: my ($udom,@unames)=@_;
1173: my %returnhash=();
1.800 albertel 1174: foreach my $uname (@unames) {
1175: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1176: }
1.70 www 1177: return %returnhash;
1178: }
1179:
1180: # ------------------------------- Store away a list of names and associated IDs
1181:
1182: sub idput {
1183: my ($udom,%ids)=@_;
1184: my %servers=();
1.800 albertel 1185: foreach my $uname (keys(%ids)) {
1186: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1187: my $uhom=&homeserver($uname,$udom);
1.70 www 1188: if ($uhom ne 'no_host') {
1.800 albertel 1189: my $id=&escape($ids{$uname});
1.70 www 1190: $id=~tr/A-Z/a-z/;
1.800 albertel 1191: my $esc_unam=&escape($uname);
1.70 www 1192: if ($servers{$uhom}) {
1.800 albertel 1193: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1194: } else {
1.800 albertel 1195: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1196: }
1197: }
1.191 harris41 1198: }
1.800 albertel 1199: foreach my $server (keys(%servers)) {
1200: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1201: }
1.344 www 1202: }
1203:
1.1023 raeburn 1204: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1205: sub dump_dom {
1.1023 raeburn 1206: my ($namespace,$udom,$regexp,$range)=@_;
1.1012 raeburn 1207: if (!$udom) {
1208: $udom=$env{'user.domain'};
1209: }
1210: my %returnhash;
1.1023 raeburn 1211: if ($udom) {
1212: my $uname = &get_domainconfiguser($udom);
1213: %returnhash = &dump($namespace,$udom,$uname,$regexp,$range);
1.1012 raeburn 1214: }
1215: return %returnhash;
1216: }
1217:
1.1023 raeburn 1218: # ------------------------------------------ get items from domain db files
1.806 raeburn 1219:
1220: sub get_dom {
1.860 raeburn 1221: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1222: my $items='';
1223: foreach my $item (@$storearr) {
1224: $items.=&escape($item).'&';
1225: }
1226: $items=~s/\&$//;
1.860 raeburn 1227: if (!$udom) {
1228: $udom=$env{'user.domain'};
1229: if (defined(&domain($udom,'primary'))) {
1230: $uhome=&domain($udom,'primary');
1231: } else {
1.874 albertel 1232: undef($uhome);
1.860 raeburn 1233: }
1234: } else {
1235: if (!$uhome) {
1236: if (defined(&domain($udom,'primary'))) {
1237: $uhome=&domain($udom,'primary');
1238: }
1239: }
1240: }
1241: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1242: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1243: my %returnhash;
1.875 albertel 1244: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1245: return %returnhash;
1246: }
1.806 raeburn 1247: my @pairs=split(/\&/,$rep);
1248: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1249: return @pairs;
1250: }
1251: my $i=0;
1252: foreach my $item (@$storearr) {
1253: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1254: $i++;
1255: }
1256: return %returnhash;
1257: } else {
1.880 banghart 1258: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1259: }
1260: }
1261:
1262: # -------------------------------------------- put items in domain db files
1263:
1264: sub put_dom {
1.860 raeburn 1265: my ($namespace,$storehash,$udom,$uhome)=@_;
1266: if (!$udom) {
1267: $udom=$env{'user.domain'};
1268: if (defined(&domain($udom,'primary'))) {
1269: $uhome=&domain($udom,'primary');
1270: } else {
1.874 albertel 1271: undef($uhome);
1.860 raeburn 1272: }
1273: } else {
1274: if (!$uhome) {
1275: if (defined(&domain($udom,'primary'))) {
1276: $uhome=&domain($udom,'primary');
1277: }
1278: }
1279: }
1280: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1281: my $items='';
1282: foreach my $item (keys(%$storehash)) {
1283: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1284: }
1285: $items=~s/\&$//;
1286: return &reply("putdom:$udom:$namespace:$items",$uhome);
1287: } else {
1.860 raeburn 1288: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1289: }
1290: }
1291:
1.1023 raeburn 1292: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1293: sub newput_dom {
1.1023 raeburn 1294: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1295: my $result;
1296: if (!$udom) {
1297: $udom=$env{'user.domain'};
1298: }
1.1023 raeburn 1299: if ($udom) {
1300: my $uname = &get_domainconfiguser($udom);
1301: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1302: }
1303: return $result;
1304: }
1305:
1.1023 raeburn 1306: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1307: sub del_dom {
1.1023 raeburn 1308: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1309: if (ref($storearr) eq 'ARRAY') {
1310: if (!$udom) {
1311: $udom=$env{'user.domain'};
1312: }
1.1023 raeburn 1313: if ($udom) {
1314: my $uname = &get_domainconfiguser($udom);
1315: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1316: }
1317: }
1318: }
1319:
1.1023 raeburn 1320: # ----------------------------------construct domainconfig user for a domain
1321: sub get_domainconfiguser {
1322: my ($udom) = @_;
1323: return $udom.'-domainconfig';
1324: }
1325:
1.837 raeburn 1326: sub retrieve_inst_usertypes {
1327: my ($udom) = @_;
1328: my (%returnhash,@order);
1.989 raeburn 1329: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1330: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1331: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1332: %returnhash = %{$domdefs{'inststatustypes'}};
1333: @order = @{$domdefs{'inststatusorder'}};
1334: } else {
1335: if (defined(&domain($udom,'primary'))) {
1336: my $uhome=&domain($udom,'primary');
1337: my $rep=&reply("inst_usertypes:$udom",$uhome);
1338: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1339: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1340: return (\%returnhash,\@order);
1341: }
1342: my ($hashitems,$orderitems) = split(/:/,$rep);
1343: my @pairs=split(/\&/,$hashitems);
1344: foreach my $item (@pairs) {
1345: my ($key,$value)=split(/=/,$item,2);
1346: $key = &unescape($key);
1347: next if ($key =~ /^error: 2 /);
1348: $returnhash{$key}=&thaw_unescape($value);
1349: }
1350: my @esc_order = split(/\&/,$orderitems);
1351: foreach my $item (@esc_order) {
1352: push(@order,&unescape($item));
1353: }
1354: } else {
1355: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1356: }
1357: }
1358: return (\%returnhash,\@order);
1359: }
1360:
1.868 raeburn 1361: sub is_domainimage {
1362: my ($url) = @_;
1363: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1364: if (&domain($1) ne '') {
1365: return '1';
1366: }
1367: }
1368: return;
1369: }
1370:
1.899 raeburn 1371: sub inst_directory_query {
1372: my ($srch) = @_;
1373: my $udom = $srch->{'srchdomain'};
1374: my %results;
1375: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1376: my $outcome;
1.899 raeburn 1377: if ($homeserver ne '') {
1.904 albertel 1378: my $queryid=&reply("querysend:instdirsearch:".
1379: &escape($srch->{'srchby'}).':'.
1380: &escape($srch->{'srchterm'}).':'.
1381: &escape($srch->{'srchtype'}),$homeserver);
1382: my $host=&hostname($homeserver);
1383: if ($queryid !~/^\Q$host\E\_/) {
1384: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1385: return;
1386: }
1387: my $response = &get_query_reply($queryid);
1388: my $maxtries = 5;
1389: my $tries = 1;
1390: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1391: $response = &get_query_reply($queryid);
1392: $tries ++;
1393: }
1394:
1395: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1396: if ($response eq 'unavailable') {
1397: $outcome = $response;
1398: } else {
1399: $outcome = 'ok';
1400: my @matches = split(/\n/,$response);
1401: foreach my $match (@matches) {
1402: my ($key,$value) = split(/=/,$match);
1403: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1404: }
1.899 raeburn 1405: }
1406: }
1407: }
1.909 raeburn 1408: return ($outcome,%results);
1.899 raeburn 1409: }
1410:
1411: sub usersearch {
1412: my ($srch) = @_;
1413: my $dom = $srch->{'srchdomain'};
1414: my %results;
1415: my %libserv = &all_library();
1416: my $query = 'usersearch';
1417: foreach my $tryserver (keys(%libserv)) {
1418: if (&host_domain($tryserver) eq $dom) {
1419: my $host=&hostname($tryserver);
1420: my $queryid=
1.911 raeburn 1421: &reply("querysend:".&escape($query).':'.
1422: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1423: &escape($srch->{'srchtype'}).':'.
1424: &escape($srch->{'srchterm'}),$tryserver);
1425: if ($queryid !~/^\Q$host\E\_/) {
1426: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1427: next;
1.899 raeburn 1428: }
1429: my $reply = &get_query_reply($queryid);
1430: my $maxtries = 1;
1431: my $tries = 1;
1432: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1433: $reply = &get_query_reply($queryid);
1434: $tries ++;
1435: }
1436: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1437: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1438: } else {
1.911 raeburn 1439: my @matches;
1440: if ($reply =~ /\n/) {
1441: @matches = split(/\n/,$reply);
1442: } else {
1443: @matches = split(/\&/,$reply);
1444: }
1.899 raeburn 1445: foreach my $match (@matches) {
1446: my ($uname,$udom,%userhash);
1.911 raeburn 1447: foreach my $entry (split(/:/,$match)) {
1448: my ($key,$value) =
1449: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1450: $userhash{$key} = $value;
1451: if ($key eq 'username') {
1452: $uname = $value;
1453: } elsif ($key eq 'domain') {
1454: $udom = $value;
1.911 raeburn 1455: }
1.899 raeburn 1456: }
1457: $results{$uname.':'.$udom} = \%userhash;
1458: }
1459: }
1460: }
1461: }
1462: return %results;
1463: }
1464:
1.912 raeburn 1465: sub get_instuser {
1466: my ($udom,$uname,$id) = @_;
1467: my $homeserver = &domain($udom,'primary');
1468: my ($outcome,%results);
1469: if ($homeserver ne '') {
1470: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1471: &escape($id).':'.&escape($udom),$homeserver);
1472: my $host=&hostname($homeserver);
1473: if ($queryid !~/^\Q$host\E\_/) {
1474: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1475: return;
1476: }
1477: my $response = &get_query_reply($queryid);
1478: my $maxtries = 5;
1479: my $tries = 1;
1480: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1481: $response = &get_query_reply($queryid);
1482: $tries ++;
1483: }
1484: if (!&error($response) && $response ne 'refused') {
1485: if ($response eq 'unavailable') {
1486: $outcome = $response;
1487: } else {
1488: $outcome = 'ok';
1489: my @matches = split(/\n/,$response);
1490: foreach my $match (@matches) {
1491: my ($key,$value) = split(/=/,$match);
1492: $results{&unescape($key)} = &thaw_unescape($value);
1493: }
1494: }
1495: }
1496: }
1497: my %userinfo;
1498: if (ref($results{$uname}) eq 'HASH') {
1499: %userinfo = %{$results{$uname}};
1500: }
1501: return ($outcome,%userinfo);
1502: }
1503:
1504: sub inst_rulecheck {
1.923 raeburn 1505: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1506: my %returnhash;
1507: if ($udom ne '') {
1508: if (ref($rules) eq 'ARRAY') {
1509: @{$rules} = map {&escape($_);} (@{$rules});
1510: my $rulestr = join(':',@{$rules});
1511: my $homeserver=&domain($udom,'primary');
1512: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1513: my $response;
1514: if ($item eq 'username') {
1515: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1516: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1517: $homeserver));
1.923 raeburn 1518: } elsif ($item eq 'id') {
1519: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1520: ':'.&escape($id).':'.$rulestr,
1521: $homeserver));
1.945 raeburn 1522: } elsif ($item eq 'selfcreate') {
1523: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1524: &escape($udom).':'.&escape($uname).
1525: ':'.$rulestr,$homeserver));
1.923 raeburn 1526: }
1.912 raeburn 1527: if ($response ne 'refused') {
1528: my @pairs=split(/\&/,$response);
1529: foreach my $item (@pairs) {
1530: my ($key,$value)=split(/=/,$item,2);
1531: $key = &unescape($key);
1532: next if ($key =~ /^error: 2 /);
1533: $returnhash{$key}=&thaw_unescape($value);
1534: }
1535: }
1536: }
1537: }
1538: }
1539: return %returnhash;
1540: }
1541:
1542: sub inst_userrules {
1.923 raeburn 1543: my ($udom,$check) = @_;
1.912 raeburn 1544: my (%ruleshash,@ruleorder);
1545: if ($udom ne '') {
1546: my $homeserver=&domain($udom,'primary');
1547: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1548: my $response;
1549: if ($check eq 'id') {
1550: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1551: $homeserver);
1.943 raeburn 1552: } elsif ($check eq 'email') {
1553: $response=&reply('instemailrules:'.&escape($udom),
1554: $homeserver);
1.923 raeburn 1555: } else {
1556: $response=&reply('instuserrules:'.&escape($udom),
1557: $homeserver);
1558: }
1.912 raeburn 1559: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1560: ($response ne 'unknown_cmd') &&
1.912 raeburn 1561: ($response ne 'no_such_host')) {
1562: my ($hashitems,$orderitems) = split(/:/,$response);
1563: my @pairs=split(/\&/,$hashitems);
1564: foreach my $item (@pairs) {
1565: my ($key,$value)=split(/=/,$item,2);
1566: $key = &unescape($key);
1567: next if ($key =~ /^error: 2 /);
1568: $ruleshash{$key}=&thaw_unescape($value);
1569: }
1570: my @esc_order = split(/\&/,$orderitems);
1571: foreach my $item (@esc_order) {
1572: push(@ruleorder,&unescape($item));
1573: }
1574: }
1575: }
1576: }
1577: return (\%ruleshash,\@ruleorder);
1578: }
1579:
1.976 raeburn 1580: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1581:
1582: sub get_domain_defaults {
1583: my ($domain) = @_;
1584: my $cachetime = 60*60*24;
1585: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1586: if (defined($cached)) {
1587: if (ref($result) eq 'HASH') {
1588: return %{$result};
1589: }
1590: }
1591: my %domdefaults;
1592: my %domconfig =
1.989 raeburn 1593: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1594: 'requestcourses','inststatus',
1.1073 raeburn 1595: 'coursedefaults','usersessions'],$domain);
1.943 raeburn 1596: if (ref($domconfig{'defaults'}) eq 'HASH') {
1597: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1598: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1599: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1600: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1601: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.943 raeburn 1602: } else {
1603: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1604: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1605: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1606: }
1.976 raeburn 1607: if (ref($domconfig{'quotas'}) eq 'HASH') {
1608: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1609: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1610: } else {
1611: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1612: }
1613: my @usertools = ('aboutme','blog','portfolio');
1614: foreach my $item (@usertools) {
1615: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1616: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1617: }
1618: }
1619: }
1.985 raeburn 1620: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1621: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1622: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1623: }
1624: }
1.989 raeburn 1625: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1626: foreach my $item ('inststatustypes','inststatusorder') {
1627: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1628: }
1629: }
1.1047 raeburn 1630: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1631: foreach my $item ('canuse_pdfforms') {
1632: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
1633: }
1634: }
1.1073 raeburn 1635: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1636: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
1637: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
1638: }
1639: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
1640: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
1641: }
1642: }
1.943 raeburn 1643: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1644: $cachetime);
1645: return %domdefaults;
1646: }
1647:
1.344 www 1648: # --------------------------------------------------- Assign a key to a student
1649:
1650: sub assign_access_key {
1.364 www 1651: #
1652: # a valid key looks like uname:udom#comments
1653: # comments are being appended
1654: #
1.498 www 1655: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1656: $kdom=
1.620 albertel 1657: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1658: $knum=
1.620 albertel 1659: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1660: $cdom=
1.620 albertel 1661: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1662: $cnum=
1.620 albertel 1663: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1664: $udom=$env{'user.name'} unless (defined($udom));
1665: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1666: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1667: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1668: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1669: # assigned to this person
1670: # - this should not happen,
1.345 www 1671: # unless something went wrong
1672: # the first time around
1673: # ready to assign
1.364 www 1674: $logentry=$1.'; '.$logentry;
1.496 www 1675: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1676: $kdom,$knum) eq 'ok') {
1.345 www 1677: # key now belongs to user
1.346 www 1678: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1679: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1680: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1681: return 'ok';
1682: } else {
1683: return
1684: 'error: Count not permanently assign key, will need to be re-entered later.';
1685: }
1686: } else {
1687: return 'error: Could not assign key, try again later.';
1688: }
1.364 www 1689: } elsif (!$existing{$ckey}) {
1.345 www 1690: # the key does not exist
1691: return 'error: The key does not exist';
1692: } else {
1693: # the key is somebody else's
1694: return 'error: The key is already in use';
1695: }
1.344 www 1696: }
1697:
1.364 www 1698: # ------------------------------------------ put an additional comment on a key
1699:
1700: sub comment_access_key {
1701: #
1702: # a valid key looks like uname:udom#comments
1703: # comments are being appended
1704: #
1705: my ($ckey,$cdom,$cnum,$logentry)=@_;
1706: $cdom=
1.620 albertel 1707: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1708: $cnum=
1.620 albertel 1709: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1710: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1711: if ($existing{$ckey}) {
1712: $existing{$ckey}.='; '.$logentry;
1713: # ready to assign
1.367 www 1714: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1715: $cdom,$cnum) eq 'ok') {
1716: return 'ok';
1717: } else {
1718: return 'error: Count not store comment.';
1719: }
1720: } else {
1721: # the key does not exist
1722: return 'error: The key does not exist';
1723: }
1724: }
1725:
1.344 www 1726: # ------------------------------------------------------ Generate a set of keys
1727:
1728: sub generate_access_keys {
1.364 www 1729: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1730: $cdom=
1.620 albertel 1731: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1732: $cnum=
1.620 albertel 1733: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1734: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1735: unless (($cdom) && ($cnum)) { return 0; }
1736: if ($number>10000) { return 0; }
1737: sleep(2); # make sure don't get same seed twice
1738: srand(time()^($$+($$<<15))); # from "Programming Perl"
1739: my $total=0;
1740: for (my $i=1;$i<=$number;$i++) {
1741: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1742: sprintf("%lx",int(100000*rand)).'-'.
1743: sprintf("%lx",int(100000*rand));
1744: $newkey=~s/1/g/g; # folks mix up 1 and l
1745: $newkey=~s/0/h/g; # and also 0 and O
1746: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1747: if ($existing{$newkey}) {
1748: $i--;
1749: } else {
1.364 www 1750: if (&put('accesskeys',
1751: { $newkey => '# generated '.localtime().
1.620 albertel 1752: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1753: '; '.$logentry },
1754: $cdom,$cnum) eq 'ok') {
1.344 www 1755: $total++;
1756: }
1757: }
1758: }
1.620 albertel 1759: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1760: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1761: return $total;
1762: }
1763:
1764: # ------------------------------------------------------- Validate an accesskey
1765:
1766: sub validate_access_key {
1767: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1768: $cdom=
1.620 albertel 1769: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1770: $cnum=
1.620 albertel 1771: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1772: $udom=$env{'user.domain'} unless (defined($udom));
1773: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1774: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1775: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1776: }
1777:
1778: # ------------------------------------- Find the section of student in a course
1.652 albertel 1779: sub devalidate_getsection_cache {
1780: my ($udom,$unam,$courseid)=@_;
1781: my $hashid="$udom:$unam:$courseid";
1782: &devalidate_cache_new('getsection',$hashid);
1783: }
1.298 matthew 1784:
1.815 albertel 1785: sub courseid_to_courseurl {
1786: my ($courseid) = @_;
1787: #already url style courseid
1788: return $courseid if ($courseid =~ m{^/});
1789:
1790: if (exists($env{'course.'.$courseid.'.num'})) {
1791: my $cnum = $env{'course.'.$courseid.'.num'};
1792: my $cdom = $env{'course.'.$courseid.'.domain'};
1793: return "/$cdom/$cnum";
1794: }
1795:
1796: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1797: if (exists($courseinfo{'num'})) {
1798: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1799: }
1800:
1801: return undef;
1802: }
1803:
1.298 matthew 1804: sub getsection {
1805: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1806: my $cachetime=1800;
1.551 albertel 1807:
1808: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1809: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1810: if (defined($cached)) { return $result; }
1811:
1.298 matthew 1812: my %Pending;
1813: my %Expired;
1814: #
1815: # Each role can either have not started yet (pending), be active,
1816: # or have expired.
1817: #
1818: # If there is an active role, we are done.
1819: #
1820: # If there is more than one role which has not started yet,
1821: # choose the one which will start sooner
1822: # If there is one role which has not started yet, return it.
1823: #
1824: # If there is more than one expired role, choose the one which ended last.
1825: # If there is a role which has expired, return it.
1826: #
1.815 albertel 1827: $courseid = &courseid_to_courseurl($courseid);
1.1086 raeburn 1828: my $extra = &freeze_escape({'skipcheck' => 1});
1829: my %roleshash = &dump('roles',$udom,$unam,$courseid,undef,$extra);
1.817 raeburn 1830: foreach my $key (keys(%roleshash)) {
1.479 albertel 1831: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1832: my $section=$1;
1833: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1834: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1835: my $now=time;
1.548 albertel 1836: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1837: $Expired{$end}=$section;
1838: next;
1839: }
1.548 albertel 1840: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1841: $Pending{$start}=$section;
1842: next;
1843: }
1.599 albertel 1844: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1845: }
1846: #
1847: # Presumedly there will be few matching roles from the above
1848: # loop and the sorting time will be negligible.
1849: if (scalar(keys(%Pending))) {
1850: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1851: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1852: }
1853: if (scalar(keys(%Expired))) {
1854: my @sorted = sort {$a <=> $b} keys(%Expired);
1855: my $time = pop(@sorted);
1.599 albertel 1856: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1857: }
1.599 albertel 1858: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1859: }
1.70 www 1860:
1.599 albertel 1861: sub save_cache {
1862: &purge_remembered();
1.722 albertel 1863: #&Apache::loncommon::validate_page();
1.620 albertel 1864: undef(%env);
1.780 albertel 1865: undef($env_loaded);
1.599 albertel 1866: }
1.452 albertel 1867:
1.599 albertel 1868: my $to_remember=-1;
1869: my %remembered;
1870: my %accessed;
1871: my $kicks=0;
1872: my $hits=0;
1.849 albertel 1873: sub make_key {
1874: my ($name,$id) = @_;
1.872 albertel 1875: if (length($id) > 65
1876: && length(&escape($id)) > 200) {
1877: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1878: }
1.849 albertel 1879: return &escape($name.':'.$id);
1880: }
1881:
1.599 albertel 1882: sub devalidate_cache_new {
1883: my ($name,$id,$debug) = @_;
1884: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1885: $id=&make_key($name,$id);
1.599 albertel 1886: $memcache->delete($id);
1887: delete($remembered{$id});
1888: delete($accessed{$id});
1889: }
1890:
1891: sub is_cached_new {
1892: my ($name,$id,$debug) = @_;
1.849 albertel 1893: $id=&make_key($name,$id);
1.599 albertel 1894: if (exists($remembered{$id})) {
1895: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1896: $accessed{$id}=[&gettimeofday()];
1897: $hits++;
1898: return ($remembered{$id},1);
1899: }
1900: my $value = $memcache->get($id);
1901: if (!(defined($value))) {
1902: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1903: return (undef,undef);
1.416 albertel 1904: }
1.599 albertel 1905: if ($value eq '__undef__') {
1906: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1907: $value=undef;
1908: }
1909: &make_room($id,$value,$debug);
1910: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1911: return ($value,1);
1912: }
1913:
1914: sub do_cache_new {
1915: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1916: $id=&make_key($name,$id);
1.599 albertel 1917: my $setvalue=$value;
1918: if (!defined($setvalue)) {
1919: $setvalue='__undef__';
1920: }
1.623 albertel 1921: if (!defined($time) ) {
1922: $time=600;
1923: }
1.599 albertel 1924: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1925: my $result = $memcache->set($id,$setvalue,$time);
1926: if (! $result) {
1.872 albertel 1927: &logthis("caching of id -> $id failed");
1.910 albertel 1928: $memcache->disconnect_all();
1.872 albertel 1929: }
1.600 albertel 1930: # need to make a copy of $value
1.919 albertel 1931: &make_room($id,$value,$debug);
1.599 albertel 1932: return $value;
1933: }
1934:
1935: sub make_room {
1936: my ($id,$value,$debug)=@_;
1.919 albertel 1937:
1938: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1939: : $value;
1.599 albertel 1940: if ($to_remember<0) { return; }
1941: $accessed{$id}=[&gettimeofday()];
1942: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1943: my $to_kick;
1944: my $max_time=0;
1945: foreach my $other (keys(%accessed)) {
1946: if (&tv_interval($accessed{$other}) > $max_time) {
1947: $to_kick=$other;
1948: $max_time=&tv_interval($accessed{$other});
1949: }
1950: }
1951: delete($remembered{$to_kick});
1952: delete($accessed{$to_kick});
1953: $kicks++;
1954: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1955: return;
1956: }
1957:
1.599 albertel 1958: sub purge_remembered {
1.604 albertel 1959: #&logthis("Tossing ".scalar(keys(%remembered)));
1960: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1961: undef(%remembered);
1962: undef(%accessed);
1.428 albertel 1963: }
1.70 www 1964: # ------------------------------------- Read an entry from a user's environment
1965:
1966: sub userenvironment {
1967: my ($udom,$unam,@what)=@_;
1.976 raeburn 1968: my $items;
1969: foreach my $item (@what) {
1970: $items.=&escape($item).'&';
1971: }
1972: $items=~s/\&$//;
1.70 www 1973: my %returnhash=();
1.1009 raeburn 1974: my $uhome = &homeserver($unam,$udom);
1975: unless ($uhome eq 'no_host') {
1976: my @answer=split(/\&/,
1977: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 1978: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
1979: return %returnhash;
1980: }
1.1009 raeburn 1981: my $i;
1982: for ($i=0;$i<=$#what;$i++) {
1983: $returnhash{$what[$i]}=&unescape($answer[$i]);
1984: }
1.70 www 1985: }
1986: return %returnhash;
1.1 albertel 1987: }
1988:
1.617 albertel 1989: # ---------------------------------------------------------- Get a studentphoto
1990: sub studentphoto {
1991: my ($udom,$unam,$ext) = @_;
1992: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1993: if (defined($env{'request.course.id'})) {
1.708 raeburn 1994: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1995: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1996: return(&retrievestudentphoto($udom,$unam,$ext));
1997: } else {
1998: my ($result,$perm_reqd)=
1.707 albertel 1999: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2000: if ($result eq 'ok') {
2001: if (!($perm_reqd eq 'yes')) {
2002: return(&retrievestudentphoto($udom,$unam,$ext));
2003: }
2004: }
2005: }
2006: }
2007: } else {
2008: my ($result,$perm_reqd) =
1.707 albertel 2009: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2010: if ($result eq 'ok') {
2011: if (!($perm_reqd eq 'yes')) {
2012: return(&retrievestudentphoto($udom,$unam,$ext));
2013: }
2014: }
2015: }
2016: return '/adm/lonKaputt/lonlogo_broken.gif';
2017: }
2018:
2019: sub retrievestudentphoto {
2020: my ($udom,$unam,$ext,$type) = @_;
2021: my $home=&Apache::lonnet::homeserver($unam,$udom);
2022: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2023: if ($ret eq 'ok') {
2024: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2025: if ($type eq 'thumbnail') {
2026: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2027: }
2028: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2029: return $tokenurl;
2030: } else {
2031: if ($type eq 'thumbnail') {
2032: return '/adm/lonKaputt/genericstudent_tn.gif';
2033: } else {
2034: return '/adm/lonKaputt/lonlogo_broken.gif';
2035: }
1.617 albertel 2036: }
2037: }
2038:
1.263 www 2039: # -------------------------------------------------------------------- New chat
2040:
2041: sub chatsend {
1.724 raeburn 2042: my ($newentry,$anon,$group)=@_;
1.620 albertel 2043: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2044: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2045: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2046: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2047: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2048: &escape($newentry)).':'.$group,$chome);
1.292 www 2049: }
2050:
2051: # ------------------------------------------ Find current version of a resource
2052:
2053: sub getversion {
2054: my $fname=&clutter(shift);
2055: unless ($fname=~/^\/res\//) { return -1; }
2056: return ¤tversion(&filelocation('',$fname));
2057: }
2058:
2059: sub currentversion {
2060: my $fname=shift;
2061: my $author=$fname;
2062: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2063: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2064: my $home=&homeserver($uname,$udom);
1.292 www 2065: if ($home eq 'no_host') {
2066: return -1;
2067: }
1.1112 www 2068: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2069: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2070: return -1;
2071: }
1.1112 www 2072: return $answer;
1.263 www 2073: }
2074:
1.1111 www 2075: #
2076: # Return special version number of resource if set by override, empty otherwise
2077: #
2078: sub usedversion {
2079: my $fname=shift;
2080: unless ($fname) { $fname=$env{'request.uri'}; }
2081: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2082: if ($urlversion) { return $urlversion; }
2083: return '';
2084: }
2085:
1.1 albertel 2086: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2087:
1.1 albertel 2088: sub subscribe {
2089: my $fname=shift;
1.761 raeburn 2090: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2091: $fname=~s/[\n\r]//g;
1.1 albertel 2092: my $author=$fname;
2093: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2094: my ($udom,$uname)=split(/\//,$author);
2095: my $home=homeserver($uname,$udom);
1.335 albertel 2096: if ($home eq 'no_host') {
2097: return 'not_found';
1.1 albertel 2098: }
2099: my $answer=reply("sub:$fname",$home);
1.64 www 2100: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2101: $answer.=' by '.$home;
2102: }
1.1 albertel 2103: return $answer;
2104: }
2105:
1.8 www 2106: # -------------------------------------------------------------- Replicate file
2107:
2108: sub repcopy {
2109: my $filename=shift;
1.23 www 2110: $filename=~s/\/+/\//g;
1.607 raeburn 2111: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
2112: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 2113: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 2114: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 2115: return &repcopy_userfile($filename);
2116: }
1.532 albertel 2117: $filename=~s/[\n\r]//g;
1.8 www 2118: my $transname="$filename.in.transfer";
1.828 www 2119: # FIXME: this should flock
1.607 raeburn 2120: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2121: my $remoteurl=subscribe($filename);
1.64 www 2122: if ($remoteurl =~ /^con_lost by/) {
2123: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2124: return 'unavailable';
1.8 www 2125: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2126: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2127: return 'not_found';
1.64 www 2128: } elsif ($remoteurl =~ /^rejected by/) {
2129: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2130: return 'forbidden';
1.20 www 2131: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2132: return 'ok';
1.8 www 2133: } else {
1.290 www 2134: my $author=$filename;
2135: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2136: my ($udom,$uname)=split(/\//,$author);
2137: my $home=homeserver($uname,$udom);
2138: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2139: my @parts=split(/\//,$filename);
2140: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
2141: if ($path ne "$perlvar{'lonDocRoot'}/res") {
2142: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2143: return 'bad_request';
1.8 www 2144: }
2145: my $count;
2146: for ($count=5;$count<$#parts;$count++) {
2147: $path.="/$parts[$count]";
2148: if ((-e $path)!=1) {
2149: mkdir($path,0777);
2150: }
2151: }
2152: my $ua=new LWP::UserAgent;
2153: my $request=new HTTP::Request('GET',"$remoteurl");
2154: my $response=$ua->request($request,$transname);
2155: if ($response->is_error()) {
2156: unlink($transname);
2157: my $message=$response->status_line;
1.672 albertel 2158: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2159: ." LWP get: $message: $filename</font>");
1.607 raeburn 2160: return 'unavailable';
1.8 www 2161: } else {
1.16 www 2162: if ($remoteurl!~/\.meta$/) {
2163: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2164: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2165: if ($mresponse->is_error()) {
2166: unlink($filename.'.meta');
2167: &logthis(
1.672 albertel 2168: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2169: }
2170: }
1.8 www 2171: rename($transname,$filename);
1.607 raeburn 2172: return 'ok';
1.8 www 2173: }
1.290 www 2174: }
1.8 www 2175: }
1.330 www 2176: }
2177:
2178: # ------------------------------------------------ Get server side include body
2179: sub ssi_body {
1.381 albertel 2180: my ($filelink,%form)=@_;
1.606 matthew 2181: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2182: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2183: }
1.953 www 2184: my $output='';
2185: my $response;
1.980 raeburn 2186: if ($filelink=~/^https?\:/) {
1.954 raeburn 2187: ($output,$response)=&externalssi($filelink);
1.953 www 2188: } else {
1.1004 droeschl 2189: $filelink .= $filelink=~/\?/ ? '&' : '?';
2190: $filelink .= 'inhibitmenu=yes';
1.953 www 2191: ($output,$response)=&ssi($filelink,%form);
2192: }
1.778 albertel 2193: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2194: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2195: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2196: if (wantarray) {
2197: return ($output, $response);
2198: } else {
2199: return $output;
2200: }
1.8 www 2201: }
2202:
1.15 www 2203: # --------------------------------------------------------- Server Side Include
2204:
1.782 albertel 2205: sub absolute_url {
2206: my ($host_name) = @_;
2207: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2208: if ($host_name eq '') {
2209: $host_name = $ENV{'SERVER_NAME'};
2210: }
2211: return $protocol.$host_name;
2212: }
2213:
1.942 foxr 2214: #
2215: # Server side include.
2216: # Parameters:
2217: # fn Possibly encrypted resource name/id.
2218: # form Hash that describes how the rendering should be done
2219: # and other things.
1.944 foxr 2220: # Returns:
1.950 raeburn 2221: # Scalar context: The content of the response.
2222: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2223: #
1.15 www 2224: sub ssi {
2225:
1.944 foxr 2226: my ($fn,%form)=@_;
1.15 www 2227: my $ua=new LWP::UserAgent;
1.23 www 2228: my $request;
1.711 albertel 2229:
2230: $form{'no_update_last_known'}=1;
1.895 albertel 2231: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2232: if (%form) {
1.782 albertel 2233: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2234: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2235: } else {
1.782 albertel 2236: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2237: }
2238:
1.15 www 2239: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
2240: my $response=$ua->request($request);
2241:
1.944 foxr 2242: if (wantarray) {
2243: return ($response->content, $response);
2244: } else {
2245: return $response->content;
1.942 foxr 2246: }
1.324 www 2247: }
2248:
2249: sub externalssi {
2250: my ($url)=@_;
2251: my $ua=new LWP::UserAgent;
2252: my $request=new HTTP::Request('GET',$url);
2253: my $response=$ua->request($request);
1.954 raeburn 2254: if (wantarray) {
2255: return ($response->content, $response);
2256: } else {
2257: return $response->content;
2258: }
1.15 www 2259: }
1.254 www 2260:
1.492 albertel 2261: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2262:
2263: sub allowuploaded {
2264: my ($srcurl,$url)=@_;
2265: $url=&clutter(&declutter($url));
2266: my $dir=$url;
2267: $dir=~s/\/[^\/]+$//;
2268: my %httpref=();
2269: my $httpurl=&hreflocation('',$url);
2270: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2271: &Apache::lonnet::appenv(\%httpref);
1.254 www 2272: }
1.477 raeburn 2273:
1.478 albertel 2274: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2275: # input: action, courseID, current domain, intended
1.637 raeburn 2276: # path to file, source of file, instruction to parse file for objects,
2277: # ref to hash for embedded objects,
2278: # ref to hash for codebase of java objects.
1.1095 raeburn 2279: # reference to scalar to accommodate mime type determined
2280: # from File::MMagic if $parser = parse.
1.637 raeburn 2281: #
1.485 raeburn 2282: # output: url to file (if action was uploaddoc),
2283: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2284: #
1.478 albertel 2285: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2286: # course.
1.477 raeburn 2287: #
1.478 albertel 2288: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2289: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2290: # course's home server.
1.477 raeburn 2291: #
1.478 albertel 2292: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2293: # be copied from $source (current location) to
2294: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2295: # and will then be copied to
2296: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2297: # course's home server.
1.485 raeburn 2298: #
1.481 raeburn 2299: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2300: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2301: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2302: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2303: # in course's home server.
1.637 raeburn 2304: #
1.477 raeburn 2305:
2306: sub process_coursefile {
1.1095 raeburn 2307: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
2308: $mimetype)=@_;
1.477 raeburn 2309: my $fetchresult;
1.638 albertel 2310: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2311: if ($action eq 'propagate') {
1.638 albertel 2312: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2313: $home);
1.481 raeburn 2314: } else {
1.477 raeburn 2315: my $fpath = '';
2316: my $fname = $file;
1.478 albertel 2317: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2318: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2319: my $filepath = &build_filepath($fpath);
1.481 raeburn 2320: if ($action eq 'copy') {
2321: if ($source eq '') {
2322: $fetchresult = 'no source file';
2323: return $fetchresult;
2324: } else {
2325: my $destination = $filepath.'/'.$fname;
2326: rename($source,$destination);
2327: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2328: $home);
1.481 raeburn 2329: }
2330: } elsif ($action eq 'uploaddoc') {
2331: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2332: print $fh $env{'form.'.$source};
1.481 raeburn 2333: close($fh);
1.637 raeburn 2334: if ($parser eq 'parse') {
1.1024 raeburn 2335: my $mm = new File::MMagic;
1.1095 raeburn 2336: my $type = $mm->checktype_filename($filepath.'/'.$fname);
2337: if ($type eq 'text/html') {
1.1024 raeburn 2338: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2339: unless ($parse_result eq 'ok') {
2340: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2341: }
1.637 raeburn 2342: }
1.1095 raeburn 2343: if (ref($mimetype)) {
2344: $$mimetype = $type;
2345: }
1.637 raeburn 2346: }
1.477 raeburn 2347: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2348: $home);
1.481 raeburn 2349: if ($fetchresult eq 'ok') {
2350: return '/uploaded/'.$fpath.'/'.$fname;
2351: } else {
2352: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2353: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2354: return '/adm/notfound.html';
2355: }
1.477 raeburn 2356: }
2357: }
1.485 raeburn 2358: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2359: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2360: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2361: }
2362: return $fetchresult;
2363: }
2364:
1.637 raeburn 2365: sub build_filepath {
2366: my ($fpath) = @_;
2367: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2368: unless ($fpath eq '') {
2369: my @parts=split('/',$fpath);
2370: foreach my $part (@parts) {
2371: $filepath.= '/'.$part;
2372: if ((-e $filepath)!=1) {
2373: mkdir($filepath,0777);
2374: }
2375: }
2376: }
2377: return $filepath;
2378: }
2379:
2380: sub store_edited_file {
1.638 albertel 2381: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2382: my $file = $primary_url;
2383: $file =~ s#^/uploaded/$docudom/$docuname/##;
2384: my $fpath = '';
2385: my $fname = $file;
2386: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2387: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2388: my $filepath = &build_filepath($fpath);
2389: open(my $fh,'>'.$filepath.'/'.$fname);
2390: print $fh $content;
2391: close($fh);
1.638 albertel 2392: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2393: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2394: $home);
1.637 raeburn 2395: if ($$fetchresult eq 'ok') {
2396: return '/uploaded/'.$fpath.'/'.$fname;
2397: } else {
1.638 albertel 2398: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2399: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2400: return '/adm/notfound.html';
2401: }
2402: }
2403:
1.531 albertel 2404: sub clean_filename {
1.831 albertel 2405: my ($fname,$args)=@_;
1.315 www 2406: # Replace Windows backslashes by forward slashes
1.257 www 2407: $fname=~s/\\/\//g;
1.831 albertel 2408: if (!$args->{'keep_path'}) {
2409: # Get rid of everything but the actual filename
2410: $fname=~s/^.*\/([^\/]+)$/$1/;
2411: }
1.315 www 2412: # Replace spaces by underscores
2413: $fname=~s/\s+/\_/g;
2414: # Replace all other weird characters by nothing
1.831 albertel 2415: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2416: # Replace all .\d. sequences with _\d. so they no longer look like version
2417: # numbers
2418: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2419: return $fname;
2420: }
1.1051 raeburn 2421: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
2422: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
2423: # image with the same aspect ratio as the original, but with dimensions which do
2424: # not exceed $resizewidth and $resizeheight.
2425:
1.984 neumanie 2426: sub resizeImage {
1.1051 raeburn 2427: my ($img_path,$resizewidth,$resizeheight) = @_;
2428: my $ima = Image::Magick->new;
2429: my $resized;
2430: if (-e $img_path) {
2431: $ima->Read($img_path);
2432: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
2433: my $width = $ima->Get('width');
2434: my $height = $ima->Get('height');
2435: if ($width > $resizewidth) {
2436: my $factor = $width/$resizewidth;
2437: my $newheight = $height/$factor;
2438: $ima->Scale(width=>$resizewidth,height=>$newheight);
2439: $resized = 1;
2440: }
2441: }
2442: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
2443: my $width = $ima->Get('width');
2444: my $height = $ima->Get('height');
2445: if ($height > $resizeheight) {
2446: my $factor = $height/$resizeheight;
2447: my $newwidth = $width/$factor;
2448: $ima->Scale(width=>$newwidth,height=>$resizeheight);
2449: $resized = 1;
2450: }
2451: }
2452: if ($resized) {
2453: $ima->Write($img_path);
2454: }
2455: }
2456: return;
1.977 amueller 2457: }
2458:
1.608 albertel 2459: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2460: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 2461: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 2462: # $context - possible values: coursedoc, existingfile, overwrite,
2463: # canceloverwrite, or ''.
2464: # if 'coursedoc': upload to the current course
2465: # if 'existingfile': write file to tmp/overwrites directory
2466: # if 'canceloverwrite': delete file written to tmp/overwrites directory
2467: # $context is passed as argument to &finishuserfileupload
1.686 albertel 2468: # $subdir - directory in userfile to store the file into
1.858 raeburn 2469: # $parser - instruction to parse file for objects ($parser = parse)
2470: # $allfiles - reference to hash for embedded objects
2471: # $codebase - reference to hash for codebase of java objects
2472: # $desuname - username for permanent storage of uploaded file
2473: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2474: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2475: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 2476: # $resizewidth - width (pixels) to which to resize uploaded image
2477: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 2478: # $mimetype - reference to scalar to accommodate mime type determined
2479: # from File::MMagic if $parser = parse.
1.858 raeburn 2480: #
1.686 albertel 2481: # output: url of file in userspace, or error: <message>
2482: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2483:
1.531 albertel 2484: sub userfileupload {
1.1090 raeburn 2485: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 2486: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 2487: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2488: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2489: $fname=&clean_filename($fname);
1.1090 raeburn 2490: # See if there is anything left
1.257 www 2491: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 2492: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
2493: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
2494: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
2495: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 2496: my $now = time;
1.1090 raeburn 2497: my $filepath;
1.1095 raeburn 2498: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 2499: $filepath = 'tmp/helprequests/'.$now;
2500: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
2501: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2502: '_'.$env{'user.domain'}.'/pending';
2503: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
2504: my ($docuname,$docudom);
2505: if ($destudom) {
2506: $docudom = $destudom;
2507: } else {
2508: $docudom = $env{'user.domain'};
2509: }
2510: if ($destuname) {
2511: $docuname = $destuname;
2512: } else {
2513: $docuname = $env{'user.name'};
2514: }
2515: if (exists($env{'form.group'})) {
2516: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2517: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2518: }
2519: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
2520: if ($context eq 'canceloverwrite') {
2521: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
2522: if (-e $tempfile) {
2523: my @info = stat($tempfile);
2524: if ($info[9] eq $env{'form.timestamp'}) {
2525: unlink($tempfile);
2526: }
2527: }
2528: return;
1.523 raeburn 2529: }
2530: }
1.1090 raeburn 2531: # Create the directory if not present
1.741 raeburn 2532: my @parts=split(/\//,$filepath);
2533: my $fullpath = $perlvar{'lonDaemons'};
2534: for (my $i=0;$i<@parts;$i++) {
2535: $fullpath .= '/'.$parts[$i];
2536: if ((-e $fullpath)!=1) {
2537: mkdir($fullpath,0777);
2538: }
2539: }
2540: open(my $fh,'>'.$fullpath.'/'.$fname);
2541: print $fh $env{'form.'.$formname};
2542: close($fh);
1.1090 raeburn 2543: if ($context eq 'existingfile') {
2544: my @info = stat($fullpath.'/'.$fname);
2545: return ($fullpath.'/'.$fname,$info[9]);
2546: } else {
2547: return $fullpath.'/'.$fname;
2548: }
1.523 raeburn 2549: }
1.995 raeburn 2550: if ($subdir eq 'scantron') {
2551: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 2552: } else {
1.995 raeburn 2553: $fname="$subdir/$fname";
2554: }
1.1090 raeburn 2555: if ($context eq 'coursedoc') {
1.638 albertel 2556: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2557: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2558: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2559: return &finishuserfileupload($docuname,$docudom,
2560: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 2561: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 2562: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 2563: } else {
1.620 albertel 2564: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2565: return &process_coursefile('uploaddoc',$docuname,$docudom,
2566: $fname,$formname,$parser,
1.1095 raeburn 2567: $allfiles,$codebase,$mimetype);
1.481 raeburn 2568: }
1.719 banghart 2569: } elsif (defined($destuname)) {
2570: my $docuname=$destuname;
2571: my $docudom=$destudom;
1.860 raeburn 2572: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2573: $parser,$allfiles,$codebase,
1.1051 raeburn 2574: $thumbwidth,$thumbheight,
1.1095 raeburn 2575: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 2576: } else {
1.638 albertel 2577: my $docuname=$env{'user.name'};
2578: my $docudom=$env{'user.domain'};
1.714 raeburn 2579: if (exists($env{'form.group'})) {
2580: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2581: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2582: }
1.860 raeburn 2583: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2584: $parser,$allfiles,$codebase,
1.1051 raeburn 2585: $thumbwidth,$thumbheight,
1.1095 raeburn 2586: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 2587: }
1.271 www 2588: }
2589:
2590: sub finishuserfileupload {
1.860 raeburn 2591: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 2592: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 2593: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2594: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2595:
1.860 raeburn 2596: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2597: $file=$fname;
2598: if ($fname=~m|/|) {
2599: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2600: $path.=$fnamepath.'/';
2601: }
1.259 www 2602: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2603: my $count;
2604: for ($count=4;$count<=$#parts;$count++) {
2605: $filepath.="/$parts[$count]";
2606: if ((-e $filepath)!=1) {
2607: mkdir($filepath,0777);
2608: }
2609: }
1.984 neumanie 2610:
1.258 www 2611: # Save the file
2612: {
1.701 albertel 2613: if (!open(FH,'>'.$filepath.'/'.$file)) {
2614: &logthis('Failed to create '.$filepath.'/'.$file);
2615: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2616: return '/adm/notfound.html';
2617: }
1.1090 raeburn 2618: if ($context eq 'overwrite') {
1.1117 foxr 2619: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 2620: my $target = $filepath.'/'.$file;
2621: if (-e $source) {
2622: my @info = stat($source);
2623: if ($info[9] eq $env{'form.timestamp'}) {
2624: unless (&File::Copy::move($source,$target)) {
2625: &logthis('Failed to overwrite '.$filepath.'/'.$file);
2626: return "Moving from $source failed";
2627: }
2628: } else {
2629: return "Temporary file: $source had unexpected date/time for last modification";
2630: }
2631: } else {
2632: return "Temporary file: $source missing";
2633: }
2634: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 2635: &logthis('Failed to write to '.$filepath.'/'.$file);
2636: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2637: return '/adm/notfound.html';
2638: }
1.570 albertel 2639: close(FH);
1.1051 raeburn 2640: if ($resizewidth && $resizeheight) {
2641: my $mm = new File::MMagic;
2642: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
2643: if ($mime_type =~ m{^image/}) {
2644: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
2645: }
1.977 amueller 2646: }
1.258 www 2647: }
1.637 raeburn 2648: if ($parser eq 'parse') {
1.1024 raeburn 2649: my $mm = new File::MMagic;
1.1095 raeburn 2650: my $type = $mm->checktype_filename($filepath.'/'.$file);
2651: if ($type eq 'text/html') {
1.1024 raeburn 2652: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
2653: $allfiles,$codebase);
2654: unless ($parse_result eq 'ok') {
2655: &logthis('Failed to parse '.$filepath.$file.
2656: ' for embedded media: '.$parse_result);
2657: }
1.637 raeburn 2658: }
1.1095 raeburn 2659: if (ref($mimetype)) {
2660: $$mimetype = $type;
2661: }
1.637 raeburn 2662: }
1.860 raeburn 2663: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2664: my $input = $filepath.'/'.$file;
2665: my $output = $filepath.'/'.'tn-'.$file;
2666: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2667: system("convert -sample $thumbsize $input $output");
2668: if (-e $filepath.'/'.'tn-'.$file) {
2669: $fetchthumb = 1;
2670: }
2671: }
1.858 raeburn 2672:
1.259 www 2673: # Notify homeserver to grep it
2674: #
1.984 neumanie 2675: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2676: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2677: if ($fetchresult eq 'ok') {
1.860 raeburn 2678: if ($fetchthumb) {
2679: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2680: if ($thumbresult ne 'ok') {
2681: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2682: $docuhome.': '.$thumbresult);
2683: }
2684: }
1.259 www 2685: #
1.258 www 2686: # Return the URL to it
1.494 albertel 2687: return '/uploaded/'.$path.$file;
1.263 www 2688: } else {
1.494 albertel 2689: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2690: ': '.$fetchresult);
1.263 www 2691: return '/adm/notfound.html';
1.858 raeburn 2692: }
1.493 albertel 2693: }
2694:
1.637 raeburn 2695: sub extract_embedded_items {
1.961 raeburn 2696: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2697: my @state = ();
2698: my %javafiles = (
2699: codebase => '',
2700: code => '',
2701: archive => ''
2702: );
2703: my %mediafiles = (
2704: src => '',
2705: movie => '',
2706: );
1.648 raeburn 2707: my $p;
2708: if ($content) {
2709: $p = HTML::LCParser->new($content);
2710: } else {
1.961 raeburn 2711: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2712: }
1.641 albertel 2713: while (my $t=$p->get_token()) {
1.640 albertel 2714: if ($t->[0] eq 'S') {
2715: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2716: push(@state, $tagname);
1.648 raeburn 2717: if (lc($tagname) eq 'allow') {
2718: &add_filetype($allfiles,$attr->{'src'},'src');
2719: }
1.640 albertel 2720: if (lc($tagname) eq 'img') {
2721: &add_filetype($allfiles,$attr->{'src'},'src');
2722: }
1.886 albertel 2723: if (lc($tagname) eq 'a') {
2724: &add_filetype($allfiles,$attr->{'href'},'href');
2725: }
1.645 raeburn 2726: if (lc($tagname) eq 'script') {
2727: if ($attr->{'archive'} =~ /\.jar$/i) {
2728: &add_filetype($allfiles,$attr->{'archive'},'archive');
2729: } else {
2730: &add_filetype($allfiles,$attr->{'src'},'src');
2731: }
2732: }
2733: if (lc($tagname) eq 'link') {
2734: if (lc($attr->{'rel'}) eq 'stylesheet') {
2735: &add_filetype($allfiles,$attr->{'href'},'href');
2736: }
2737: }
1.640 albertel 2738: if (lc($tagname) eq 'object' ||
2739: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2740: foreach my $item (keys(%javafiles)) {
2741: $javafiles{$item} = '';
2742: }
2743: }
2744: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2745: my $name = lc($attr->{'name'});
2746: foreach my $item (keys(%javafiles)) {
2747: if ($name eq $item) {
2748: $javafiles{$item} = $attr->{'value'};
2749: last;
2750: }
2751: }
2752: foreach my $item (keys(%mediafiles)) {
2753: if ($name eq $item) {
2754: &add_filetype($allfiles, $attr->{'value'}, 'value');
2755: last;
2756: }
2757: }
2758: }
2759: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2760: foreach my $item (keys(%javafiles)) {
2761: if ($attr->{$item}) {
2762: $javafiles{$item} = $attr->{$item};
2763: last;
2764: }
2765: }
2766: foreach my $item (keys(%mediafiles)) {
2767: if ($attr->{$item}) {
2768: &add_filetype($allfiles,$attr->{$item},$item);
2769: last;
2770: }
2771: }
2772: }
2773: } elsif ($t->[0] eq 'E') {
2774: my ($tagname) = ($t->[1]);
2775: if ($javafiles{'codebase'} ne '') {
2776: $javafiles{'codebase'} .= '/';
2777: }
2778: if (lc($tagname) eq 'applet' ||
2779: lc($tagname) eq 'object' ||
2780: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2781: ) {
2782: foreach my $item (keys(%javafiles)) {
2783: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2784: my $file=$javafiles{'codebase'}.$javafiles{$item};
2785: &add_filetype($allfiles,$file,$item);
2786: }
2787: }
2788: }
2789: pop @state;
2790: }
2791: }
1.637 raeburn 2792: return 'ok';
2793: }
2794:
1.639 albertel 2795: sub add_filetype {
2796: my ($allfiles,$file,$type)=@_;
2797: if (exists($allfiles->{$file})) {
2798: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2799: push(@{$allfiles->{$file}}, &escape($type));
2800: }
2801: } else {
2802: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2803: }
2804: }
2805:
1.493 albertel 2806: sub removeuploadedurl {
1.984 neumanie 2807: my ($url)=@_;
2808: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2809: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2810: }
2811:
2812: sub removeuserfile {
2813: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 2814: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2815: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 2816: if ($result eq 'ok') {
1.798 raeburn 2817: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2818: my $metafile = $fname.'.meta';
2819: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2820: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 2821: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2822: my $sqlresult =
1.823 albertel 2823: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2824: 'portfolio_metadata',$group,
2825: 'delete');
1.798 raeburn 2826: }
2827: }
2828: return $result;
1.257 www 2829: }
1.15 www 2830:
1.530 albertel 2831: sub mkdiruserfile {
2832: my ($docuname,$docudom,$dir)=@_;
2833: my $home=&homeserver($docuname,$docudom);
2834: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2835: }
2836:
1.531 albertel 2837: sub renameuserfile {
2838: my ($docuname,$docudom,$old,$new)=@_;
2839: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2840: my $result = &reply("renameuserfile:$docudom:$docuname:".
2841: &escape("$old").':'.&escape("$new"),$home);
2842: if ($result eq 'ok') {
2843: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2844: my $oldmeta = $old.'.meta';
2845: my $newmeta = $new.'.meta';
2846: my $metaresult =
2847: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2848: my $url = "/uploaded/$docudom/$docuname/$old";
2849: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2850: my $sqlresult =
1.823 albertel 2851: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2852: 'portfolio_metadata',$group,
2853: 'delete');
1.798 raeburn 2854: }
2855: }
2856: return $result;
1.531 albertel 2857: }
2858:
1.14 www 2859: # ------------------------------------------------------------------------- Log
2860:
2861: sub log {
2862: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2863: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2864: }
2865:
2866: # ------------------------------------------------------------------ Course Log
1.352 www 2867: #
2868: # This routine flushes several buffers of non-mission-critical nature
2869: #
1.157 www 2870:
2871: sub flushcourselogs {
1.352 www 2872: &logthis('Flushing log buffers');
2873: #
2874: # course logs
2875: # This is a log of all transactions in a course, which can be used
2876: # for data mining purposes
2877: #
2878: # It also collects the courseid database, which lists last transaction
2879: # times and course titles for all courseids
2880: #
2881: my %courseidbuffer=();
1.921 raeburn 2882: foreach my $crsid (keys(%courselogs)) {
1.352 www 2883: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2884: &escape($courselogs{$crsid}),
2885: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2886: delete $courselogs{$crsid};
2887: } else {
2888: &logthis('Failed to flush log buffer for '.$crsid);
2889: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2890: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2891: " exceeded maximum size, deleting.</font>");
2892: delete $courselogs{$crsid};
2893: }
1.352 www 2894: }
1.920 raeburn 2895: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2896: 'description' => $coursedescrbuf{$crsid},
2897: 'inst_code' => $courseinstcodebuf{$crsid},
2898: 'type' => $coursetypebuf{$crsid},
2899: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2900: };
1.191 harris41 2901: }
1.352 www 2902: #
2903: # Write course id database (reverse lookup) to homeserver of courses
2904: # Is used in pickcourse
2905: #
1.840 albertel 2906: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2907: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2908: $courseidbuffer{$crs_home},
2909: $crs_home,'timeonly');
1.352 www 2910: }
2911: #
2912: # File accesses
2913: # Writes to the dynamic metadata of resources to get hit counts, etc.
2914: #
1.449 matthew 2915: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2916: if ($entry =~ /___count$/) {
2917: my ($dom,$name);
1.807 albertel 2918: ($dom,$name,undef)=
1.811 albertel 2919: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2920: if (! defined($dom) || $dom eq '' ||
2921: ! defined($name) || $name eq '') {
1.620 albertel 2922: my $cid = $env{'request.course.id'};
2923: $dom = $env{'request.'.$cid.'.domain'};
2924: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2925: }
1.450 matthew 2926: my $value = $accesshash{$entry};
2927: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2928: my %temphash=($url => $value);
1.449 matthew 2929: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2930: if ($result eq 'ok') {
2931: delete $accesshash{$entry};
2932: } elsif ($result eq 'unknown_cmd') {
2933: # Target server has old code running on it.
1.450 matthew 2934: my %temphash=($entry => $value);
1.449 matthew 2935: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2936: delete $accesshash{$entry};
2937: }
2938: }
2939: } else {
1.811 albertel 2940: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2941: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2942: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2943: delete $accesshash{$entry};
2944: }
1.185 www 2945: }
1.191 harris41 2946: }
1.352 www 2947: #
2948: # Roles
2949: # Reverse lookup of user roles for course faculty/staff and co-authorship
2950: #
1.800 albertel 2951: foreach my $entry (keys(%userrolehash)) {
1.351 www 2952: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2953: split(/\:/,$entry);
2954: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2955: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2956: $rudom,$runame) eq 'ok') {
2957: delete $userrolehash{$entry};
2958: }
2959: }
1.662 raeburn 2960: #
2961: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2962: #
2963: my %domrolebuffer = ();
1.1000 raeburn 2964: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 2965: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2966: if ($domrolebuffer{$rudom}) {
2967: $domrolebuffer{$rudom}.='&'.&escape($entry).
2968: '='.&escape($domainrolehash{$entry});
2969: } else {
2970: $domrolebuffer{$rudom}.=&escape($entry).
2971: '='.&escape($domainrolehash{$entry});
2972: }
2973: delete $domainrolehash{$entry};
2974: }
2975: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2976: my %servers = &get_servers($dom,'library');
2977: foreach my $tryserver (keys(%servers)) {
2978: unless (&reply('domroleput:'.$dom.':'.
2979: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2980: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2981: }
1.662 raeburn 2982: }
2983: }
1.186 www 2984: $dumpcount++;
1.157 www 2985: }
2986:
2987: sub courselog {
2988: my $what=shift;
1.158 www 2989: $what=time.':'.$what;
1.620 albertel 2990: unless ($env{'request.course.id'}) { return ''; }
2991: $coursedombuf{$env{'request.course.id'}}=
2992: $env{'course.'.$env{'request.course.id'}.'.domain'};
2993: $coursenumbuf{$env{'request.course.id'}}=
2994: $env{'course.'.$env{'request.course.id'}.'.num'};
2995: $coursehombuf{$env{'request.course.id'}}=
2996: $env{'course.'.$env{'request.course.id'}.'.home'};
2997: $coursedescrbuf{$env{'request.course.id'}}=
2998: $env{'course.'.$env{'request.course.id'}.'.description'};
2999: $courseinstcodebuf{$env{'request.course.id'}}=
3000: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3001: $courseownerbuf{$env{'request.course.id'}}=
3002: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3003: $coursetypebuf{$env{'request.course.id'}}=
3004: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3005: if (defined $courselogs{$env{'request.course.id'}}) {
3006: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3007: } else {
1.620 albertel 3008: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3009: }
1.620 albertel 3010: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3011: &flushcourselogs();
3012: }
1.158 www 3013: }
3014:
3015: sub courseacclog {
3016: my $fnsymb=shift;
1.620 albertel 3017: unless ($env{'request.course.id'}) { return ''; }
3018: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 3019: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 3020: $what.=':POST';
1.583 matthew 3021: # FIXME: Probably ought to escape things....
1.800 albertel 3022: foreach my $key (keys(%env)) {
3023: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3024: my $formitem = $1;
3025: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3026: $what.=':'.$formitem.'='.$env{$key};
3027: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3028: $what.=':'.$formitem.'='.$env{$key};
3029: }
1.158 www 3030: }
1.191 harris41 3031: }
1.583 matthew 3032: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3033: # FIXME: We should not be depending on a form parameter that someone
3034: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3035: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3036: $what.= ':POST';
3037: # FIXME: Probably ought to escape things....
3038: foreach my $element ('courseexp','crsfulltext','crsrelated',
3039: 'crsdiscuss') {
1.620 albertel 3040: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3041: }
3042: }
1.158 www 3043: }
3044: &courselog($what);
1.149 www 3045: }
3046:
1.185 www 3047: sub countacc {
3048: my $url=&declutter(shift);
1.458 matthew 3049: return if (! defined($url) || $url eq '');
1.620 albertel 3050: unless ($env{'request.course.id'}) { return ''; }
3051: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 3052: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3053: $accesshash{$key}++;
1.185 www 3054: }
1.349 www 3055:
1.361 www 3056: sub linklog {
3057: my ($from,$to)=@_;
3058: $from=&declutter($from);
3059: $to=&declutter($to);
3060: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3061: $accesshash{$to.'___'.$from.'___goto'}=1;
3062: }
3063:
1.349 www 3064: sub userrolelog {
3065: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 3066: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 3067: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 3068: ($trole=~/^ep/) || ($trole=~/^cr/) ||
1.1041 raeburn 3069: ($trole=~/^ta/) || ($trole=~/^co/)) {
1.350 www 3070: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3071: $userrolehash
3072: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3073: =$tend.':'.$tstart;
1.662 raeburn 3074: }
1.898 albertel 3075: if (($env{'request.role'} =~ /dc\./) &&
3076: (($trole=~/^au/) || ($trole=~/^in/) ||
3077: ($trole=~/^cc/) || ($trole=~/^ep/) ||
1.1041 raeburn 3078: ($trole=~/^cr/) || ($trole=~/^ta/) ||
3079: ($trole=~/^co/))) {
1.898 albertel 3080: $userrolehash
3081: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3082: =$tend.':'.$tstart;
3083: }
1.662 raeburn 3084: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
3085: ($trole=~/^li/) || ($trole=~/^li/) ||
3086: ($trole=~/^au/) || ($trole=~/^dg/) ||
3087: ($trole=~/^sc/)) {
3088: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3089: $domainrolehash
3090: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3091: = $tend.':'.$tstart;
3092: }
1.351 www 3093: }
3094:
1.957 raeburn 3095: sub courserolelog {
3096: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
3097: if (($trole eq 'cc') || ($trole eq 'in') ||
3098: ($trole eq 'ep') || ($trole eq 'ad') ||
3099: ($trole eq 'ta') || ($trole eq 'st') ||
1.1044 raeburn 3100: ($trole=~/^cr/) || ($trole eq 'gr') ||
3101: ($trole eq 'co')) {
1.957 raeburn 3102: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
3103: my $cdom = $1;
3104: my $cnum = $2;
3105: my $sec = $3;
3106: my $namespace = 'rolelog';
3107: my %storehash = (
3108: role => $trole,
3109: start => $tstart,
3110: end => $tend,
3111: selfenroll => $selfenroll,
3112: context => $context,
3113: );
3114: if ($trole eq 'gr') {
3115: $namespace = 'groupslog';
3116: $storehash{'group'} = $sec;
3117: } else {
3118: $storehash{'section'} = $sec;
3119: }
3120: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
1.996 raeburn 3121: if (($trole ne 'st') || ($sec ne '')) {
3122: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
3123: }
1.957 raeburn 3124: }
3125: }
3126: return;
3127: }
3128:
1.351 www 3129: sub get_course_adv_roles {
1.948 raeburn 3130: my ($cid,$codes) = @_;
1.620 albertel 3131: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 3132: my %coursehash=&coursedescription($cid);
1.988 raeburn 3133: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 3134: my %nothide=();
1.800 albertel 3135: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 3136: if ($user !~ /:/) {
3137: $nothide{join(':',split(/[\@]/,$user))}=1;
3138: } else {
3139: $nothide{$user}=1;
3140: }
1.470 www 3141: }
1.351 www 3142: my %returnhash=();
3143: my %dumphash=
3144: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
3145: my $now=time;
1.997 raeburn 3146: my %privileged;
1.1000 raeburn 3147: foreach my $entry (keys(%dumphash)) {
1.800 albertel 3148: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 3149: if (($tstart) && ($tstart<0)) { next; }
3150: if (($tend) && ($tend<$now)) { next; }
3151: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 3152: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 3153: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 3154: unless (ref($privileged{$domain}) eq 'HASH') {
3155: my %dompersonnel =
1.998 raeburn 3156: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3157: $privileged{$domain} = {};
3158: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3159: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3160: foreach my $user (keys(%{$dompersonnel{$server}})) {
3161: my ($trole,$uname,$udom) = split(/:/,$user);
3162: $privileged{$udom}{$uname} = 1;
3163: }
3164: }
3165: }
3166: }
3167: if ((exists($privileged{$domain}{$username})) &&
3168: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3169: if ($role eq 'cr') { next; }
1.948 raeburn 3170: if ($codes) {
3171: if ($section) { $role .= ':'.$section; }
3172: if ($returnhash{$role}) {
3173: $returnhash{$role}.=','.$username.':'.$domain;
3174: } else {
3175: $returnhash{$role}=$username.':'.$domain;
3176: }
1.351 www 3177: } else {
1.988 raeburn 3178: my $key=&plaintext($role,$crstype);
1.973 bisitz 3179: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3180: if ($returnhash{$key}) {
3181: $returnhash{$key}.=','.$username.':'.$domain;
3182: } else {
3183: $returnhash{$key}=$username.':'.$domain;
3184: }
1.351 www 3185: }
1.948 raeburn 3186: }
1.400 www 3187: return %returnhash;
3188: }
3189:
3190: sub get_my_roles {
1.937 raeburn 3191: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3192: unless (defined($uname)) { $uname=$env{'user.name'}; }
3193: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3194: my (%dumphash,%nothide);
1.1086 raeburn 3195: if ($context eq 'userroles') {
3196: my $extra = &freeze_escape({'skipcheck' => 1});
3197: %dumphash = &dump('roles',$udom,$uname,'.',undef,$extra);
1.858 raeburn 3198: } else {
3199: %dumphash=
1.400 www 3200: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3201: if ($hidepriv) {
3202: my %coursehash=&coursedescription($udom.'_'.$uname);
3203: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3204: if ($user !~ /:/) {
3205: $nothide{join(':',split(/[\@]/,$user))} = 1;
3206: } else {
3207: $nothide{$user} = 1;
3208: }
3209: }
3210: }
1.858 raeburn 3211: }
1.400 www 3212: my %returnhash=();
3213: my $now=time;
1.999 raeburn 3214: my %privileged;
1.800 albertel 3215: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3216: my ($role,$tend,$tstart);
3217: if ($context eq 'userroles') {
3218: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3219: } else {
3220: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3221: }
1.400 www 3222: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3223: my $status = 'active';
1.939 raeburn 3224: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3225: $status = 'previous';
3226: }
3227: if (($tstart) && ($now<$tstart)) {
3228: $status = 'future';
3229: }
3230: if (ref($types) eq 'ARRAY') {
3231: if (!grep(/^\Q$status\E$/,@{$types})) {
3232: next;
3233: }
3234: } else {
3235: if ($status ne 'active') {
3236: next;
3237: }
3238: }
1.867 raeburn 3239: my ($rolecode,$username,$domain,$section,$area);
3240: if ($context eq 'userroles') {
3241: ($area,$rolecode) = split(/_/,$entry);
3242: (undef,$domain,$username,$section) = split(/\//,$area);
3243: } else {
3244: ($role,$username,$domain,$section) = split(/\:/,$entry);
3245: }
1.832 raeburn 3246: if (ref($roledoms) eq 'ARRAY') {
3247: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3248: next;
3249: }
3250: }
3251: if (ref($roles) eq 'ARRAY') {
3252: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3253: if ($role =~ /^cr\//) {
3254: if (!grep(/^cr$/,@{$roles})) {
3255: next;
3256: }
1.1104 raeburn 3257: } elsif ($role =~ /^gr\//) {
3258: if (!grep(/^gr$/,@{$roles})) {
3259: next;
3260: }
1.922 raeburn 3261: } else {
3262: next;
3263: }
1.832 raeburn 3264: }
1.867 raeburn 3265: }
1.937 raeburn 3266: if ($hidepriv) {
1.999 raeburn 3267: if ($context eq 'userroles') {
3268: if ((&privileged($username,$domain)) &&
3269: (!$nothide{$username.':'.$domain})) {
3270: next;
3271: }
3272: } else {
3273: unless (ref($privileged{$domain}) eq 'HASH') {
3274: my %dompersonnel =
3275: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
3276: $privileged{$domain} = {};
3277: if (keys(%dompersonnel)) {
3278: foreach my $server (keys(%dompersonnel)) {
3279: if (ref($dompersonnel{$server}) eq 'HASH') {
3280: foreach my $user (keys(%{$dompersonnel{$server}})) {
3281: my ($trole,$uname,$udom) = split(/:/,$user);
3282: $privileged{$udom}{$uname} = $trole;
3283: }
3284: }
3285: }
3286: }
3287: }
3288: if (exists($privileged{$domain}{$username})) {
3289: if (!$nothide{$username.':'.$domain}) {
3290: next;
3291: }
3292: }
1.937 raeburn 3293: }
3294: }
1.933 raeburn 3295: if ($withsec) {
3296: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
3297: $tstart.':'.$tend;
3298: } else {
3299: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
3300: }
1.832 raeburn 3301: }
1.373 www 3302: return %returnhash;
1.399 www 3303: }
3304:
3305: # ----------------------------------------------------- Frontpage Announcements
3306: #
3307: #
3308:
3309: sub postannounce {
3310: my ($server,$text)=@_;
1.844 albertel 3311: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 3312: unless ($text=~/\w/) { $text=''; }
3313: return &reply('setannounce:'.&escape($text),$server);
3314: }
3315:
3316: sub getannounce {
1.448 albertel 3317:
3318: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 3319: my $announcement='';
1.800 albertel 3320: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 3321: close($fh);
1.399 www 3322: if ($announcement=~/\w/) {
3323: return
3324: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 3325: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 3326: } else {
3327: return '';
3328: }
3329: } else {
3330: return '';
3331: }
1.351 www 3332: }
1.353 www 3333:
3334: # ---------------------------------------------------------- Course ID routines
3335: # Deal with domain's nohist_courseid.db files
3336: #
3337:
3338: sub courseidput {
1.921 raeburn 3339: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 3340: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 3341: my $outcome;
3342: if ($caller eq 'timeonly') {
3343: my $cids = '';
3344: foreach my $item (keys(%$storehash)) {
3345: $cids.=&escape($item).'&';
3346: }
3347: $cids=~s/\&$//;
3348: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
3349: $coursehome);
3350: } else {
3351: my $items = '';
3352: foreach my $item (keys(%$storehash)) {
3353: $items.= &escape($item).'='.
3354: &freeze_escape($$storehash{$item}).'&';
3355: }
3356: $items=~s/\&$//;
3357: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
3358: $coursehome);
1.918 raeburn 3359: }
3360: if ($outcome eq 'unknown_cmd') {
3361: my $what;
3362: foreach my $cid (keys(%$storehash)) {
3363: $what .= &escape($cid).'=';
1.921 raeburn 3364: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 3365: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 3366: }
3367: $what =~ s/\:$/&/;
3368: }
3369: $what =~ s/\&$//;
3370: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
3371: } else {
3372: return $outcome;
3373: }
1.353 www 3374: }
3375:
3376: sub courseiddump {
1.921 raeburn 3377: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 3378: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 3379: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 3380: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 3381: my $as_hash = 1;
3382: my %returnhash;
3383: if (!$domfilter) { $domfilter=''; }
1.845 albertel 3384: my %libserv = &all_library();
3385: foreach my $tryserver (keys(%libserv)) {
3386: if ( ( $hostidflag == 1
3387: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
3388: || (!defined($hostidflag)) ) {
3389:
1.918 raeburn 3390: if (($domfilter eq '') ||
3391: (&host_domain($tryserver) eq $domfilter)) {
3392: my $rep =
3393: &reply('courseiddump:'.&host_domain($tryserver).':'.
3394: $sincefilter.':'.&escape($descfilter).':'.
3395: &escape($instcodefilter).':'.&escape($ownerfilter).
3396: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 3397: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 3398: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 3399: $showhidden.':'.$caller.':'.&escape($cloner).':'.
1.1029 raeburn 3400: &escape($cc_clone).':'.$cloneonly.':'.
3401: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1071 raeburn 3402: &escape($creationcontext).':'.$domcloner,
3403: $tryserver);
1.918 raeburn 3404: my @pairs=split(/\&/,$rep);
3405: foreach my $item (@pairs) {
3406: my ($key,$value)=split(/\=/,$item,2);
3407: $key = &unescape($key);
3408: next if ($key =~ /^error: 2 /);
3409: my $result = &thaw_unescape($value);
3410: if (ref($result) eq 'HASH') {
3411: $returnhash{$key}=$result;
3412: } else {
1.921 raeburn 3413: my @responses = split(/:/,$value);
3414: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3415: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3416: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3417: }
1.1008 raeburn 3418: }
1.353 www 3419: }
3420: }
3421: }
3422: }
3423: return %returnhash;
3424: }
3425:
1.1055 raeburn 3426: sub courselastaccess {
3427: my ($cdom,$cnum,$hostidref) = @_;
3428: my %returnhash;
3429: if ($cdom && $cnum) {
3430: my $chome = &homeserver($cnum,$cdom);
3431: if ($chome ne 'no_host') {
3432: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
3433: &extract_lastaccess(\%returnhash,$rep);
3434: }
3435: } else {
3436: if (!$cdom) { $cdom=''; }
3437: my %libserv = &all_library();
3438: foreach my $tryserver (keys(%libserv)) {
3439: if (ref($hostidref) eq 'ARRAY') {
3440: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
3441: }
3442: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
3443: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
3444: &extract_lastaccess(\%returnhash,$rep);
3445: }
3446: }
3447: }
3448: return %returnhash;
3449: }
3450:
3451: sub extract_lastaccess {
3452: my ($returnhash,$rep) = @_;
3453: if (ref($returnhash) eq 'HASH') {
3454: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
3455: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
3456: $rep eq '') {
3457: my @pairs=split(/\&/,$rep);
3458: foreach my $item (@pairs) {
3459: my ($key,$value)=split(/\=/,$item,2);
3460: $key = &unescape($key);
3461: next if ($key =~ /^error: 2 /);
3462: $returnhash->{$key} = &thaw_unescape($value);
3463: }
3464: }
3465: }
3466: return;
3467: }
3468:
1.658 raeburn 3469: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3470:
3471: sub dcmailput {
1.685 raeburn 3472: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3473: my $status = &Apache::lonnet::critical(
1.740 www 3474: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3475: &escape($message),$server);
1.662 raeburn 3476: return $status;
3477: }
3478:
1.658 raeburn 3479: sub dcmaildump {
3480: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3481: my %returnhash=();
1.846 albertel 3482:
3483: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3484: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3485: &escape($enddate).':';
3486: my @esc_senders=map { &escape($_)} @$senders;
3487: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3488: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3489: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3490: if (($key) && ($value)) {
3491: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3492: }
3493: }
3494: }
3495: return %returnhash;
3496: }
1.662 raeburn 3497: # ---------------------------------------------------------- Domain roles
3498:
3499: sub get_domain_roles {
3500: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 3501: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 3502: $startdate = '.';
3503: }
1.1018 raeburn 3504: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 3505: $enddate = '.';
3506: }
1.922 raeburn 3507: my $rolelist;
3508: if (ref($roles) eq 'ARRAY') {
3509: $rolelist = join(':',@{$roles});
3510: }
1.662 raeburn 3511: my %personnel = ();
1.841 albertel 3512:
3513: my %servers = &get_servers($dom,'library');
3514: foreach my $tryserver (keys(%servers)) {
3515: %{$personnel{$tryserver}}=();
3516: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3517: &escape($startdate).':'.
3518: &escape($enddate).':'.
3519: &escape($rolelist), $tryserver))) {
3520: my ($key,$value) = split(/\=/,$line,2);
3521: if (($key) && ($value)) {
3522: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3523: }
3524: }
1.662 raeburn 3525: }
3526: return %personnel;
3527: }
1.658 raeburn 3528:
1.1057 www 3529: # ----------------------------------------------------------- Interval timing
1.149 www 3530:
1.504 albertel 3531: sub get_first_access {
3532: my ($type,$argsymb)=@_;
1.790 albertel 3533: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3534: if ($argsymb) { $symb=$argsymb; }
3535: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 3536: if ($type eq 'course') {
3537: $res='course';
3538: } elsif ($type eq 'map') {
1.588 albertel 3539: $res=&symbread($map);
3540: } else {
3541: $res=$symb;
3542: }
3543: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
3544: return $times{"$courseid\0$res"};
1.504 albertel 3545: }
3546:
3547: sub set_first_access {
3548: my ($type)=@_;
1.790 albertel 3549: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3550: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 3551: if ($type eq 'course') {
3552: $res='course';
3553: } elsif ($type eq 'map') {
1.588 albertel 3554: $res=&symbread($map);
3555: } else {
3556: $res=$symb;
3557: }
3558: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 3559: if (!$firstaccess) {
1.588 albertel 3560: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 3561: }
3562: return 'already_set';
1.504 albertel 3563: }
3564:
1.110 www 3565: # --------------------------------------------- Set Expire Date for Spreadsheet
3566:
3567: sub expirespread {
3568: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 3569: my $cid=$env{'request.course.id'};
1.110 www 3570: if ($cid) {
3571: my $now=time;
3572: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3573: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3574: $env{'course.'.$cid.'.num'}.
1.110 www 3575: ':nohist_expirationdates:'.
3576: &escape($key).'='.$now,
1.620 albertel 3577: $env{'course.'.$cid.'.home'})
1.110 www 3578: }
3579: return 'ok';
1.14 www 3580: }
3581:
1.109 www 3582: # ----------------------------------------------------- Devalidate Spreadsheets
3583:
3584: sub devalidate {
1.325 www 3585: my ($symb,$uname,$udom)=@_;
1.620 albertel 3586: my $cid=$env{'request.course.id'};
1.109 www 3587: if ($cid) {
1.391 matthew 3588: # delete the stored spreadsheets for
3589: # - the student level sheet of this user in course's homespace
3590: # - the assessment level sheet for this resource
3591: # for this user in user's homespace
1.553 albertel 3592: # - current conditional state info
1.325 www 3593: my $key=$uname.':'.$udom.':';
1.109 www 3594: my $status=
1.299 matthew 3595: &del('nohist_calculatedsheets',
1.391 matthew 3596: [$key.'studentcalc:'],
1.620 albertel 3597: $env{'course.'.$cid.'.domain'},
3598: $env{'course.'.$cid.'.num'})
1.133 albertel 3599: .' '.
3600: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3601: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3602: unless ($status eq 'ok ok') {
3603: &logthis('Could not devalidate spreadsheet '.
1.325 www 3604: $uname.' at '.$udom.' for '.
1.109 www 3605: $symb.': '.$status);
1.133 albertel 3606: }
1.553 albertel 3607: &delenv('user.state.'.$cid);
1.109 www 3608: }
3609: }
3610:
1.265 albertel 3611: sub get_scalar {
3612: my ($string,$end) = @_;
3613: my $value;
3614: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3615: $value = $1;
3616: } elsif ($$string =~ s/^([^&]*?)&//) {
3617: $value = $1;
3618: }
3619: return &unescape($value);
3620: }
3621:
3622: sub array2str {
3623: my (@array) = @_;
3624: my $result=&arrayref2str(\@array);
3625: $result=~s/^__ARRAY_REF__//;
3626: $result=~s/__END_ARRAY_REF__$//;
3627: return $result;
3628: }
3629:
1.204 albertel 3630: sub arrayref2str {
3631: my ($arrayref) = @_;
1.265 albertel 3632: my $result='__ARRAY_REF__';
1.204 albertel 3633: foreach my $elem (@$arrayref) {
1.265 albertel 3634: if(ref($elem) eq 'ARRAY') {
3635: $result.=&arrayref2str($elem).'&';
3636: } elsif(ref($elem) eq 'HASH') {
3637: $result.=&hashref2str($elem).'&';
3638: } elsif(ref($elem)) {
3639: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3640: } else {
3641: $result.=&escape($elem).'&';
3642: }
3643: }
3644: $result=~s/\&$//;
1.265 albertel 3645: $result .= '__END_ARRAY_REF__';
1.204 albertel 3646: return $result;
3647: }
3648:
1.168 albertel 3649: sub hash2str {
1.204 albertel 3650: my (%hash) = @_;
3651: my $result=&hashref2str(\%hash);
1.265 albertel 3652: $result=~s/^__HASH_REF__//;
3653: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3654: return $result;
3655: }
3656:
3657: sub hashref2str {
3658: my ($hashref)=@_;
1.265 albertel 3659: my $result='__HASH_REF__';
1.800 albertel 3660: foreach my $key (sort(keys(%$hashref))) {
3661: if (ref($key) eq 'ARRAY') {
3662: $result.=&arrayref2str($key).'=';
3663: } elsif (ref($key) eq 'HASH') {
3664: $result.=&hashref2str($key).'=';
3665: } elsif (ref($key)) {
1.265 albertel 3666: $result.='=';
1.800 albertel 3667: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3668: } else {
1.800 albertel 3669: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3670: }
3671:
1.800 albertel 3672: if(ref($hashref->{$key}) eq 'ARRAY') {
3673: $result.=&arrayref2str($hashref->{$key}).'&';
3674: } elsif(ref($hashref->{$key}) eq 'HASH') {
3675: $result.=&hashref2str($hashref->{$key}).'&';
3676: } elsif(ref($hashref->{$key})) {
1.265 albertel 3677: $result.='&';
1.800 albertel 3678: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3679: } else {
1.800 albertel 3680: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3681: }
3682: }
1.168 albertel 3683: $result=~s/\&$//;
1.265 albertel 3684: $result .= '__END_HASH_REF__';
1.168 albertel 3685: return $result;
3686: }
3687:
3688: sub str2hash {
1.265 albertel 3689: my ($string)=@_;
3690: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3691: return %$hash;
3692: }
3693:
3694: sub str2hashref {
1.168 albertel 3695: my ($string) = @_;
1.265 albertel 3696:
3697: my %hash;
3698:
3699: if($string !~ /^__HASH_REF__/) {
3700: if (! ($string eq '' || !defined($string))) {
3701: $hash{'error'}='Not hash reference';
3702: }
3703: return (\%hash, $string);
3704: }
3705:
3706: $string =~ s/^__HASH_REF__//;
3707:
3708: while($string !~ /^__END_HASH_REF__/) {
3709: #key
3710: my $key='';
3711: if($string =~ /^__HASH_REF__/) {
3712: ($key, $string)=&str2hashref($string);
3713: if(defined($key->{'error'})) {
3714: $hash{'error'}='Bad data';
3715: return (\%hash, $string);
3716: }
3717: } elsif($string =~ /^__ARRAY_REF__/) {
3718: ($key, $string)=&str2arrayref($string);
3719: if($key->[0] eq 'Array reference error') {
3720: $hash{'error'}='Bad data';
3721: return (\%hash, $string);
3722: }
3723: } else {
3724: $string =~ s/^(.*?)=//;
1.267 albertel 3725: $key=&unescape($1);
1.265 albertel 3726: }
3727: $string =~ s/^=//;
3728:
3729: #value
3730: my $value='';
3731: if($string =~ /^__HASH_REF__/) {
3732: ($value, $string)=&str2hashref($string);
3733: if(defined($value->{'error'})) {
3734: $hash{'error'}='Bad data';
3735: return (\%hash, $string);
3736: }
3737: } elsif($string =~ /^__ARRAY_REF__/) {
3738: ($value, $string)=&str2arrayref($string);
3739: if($value->[0] eq 'Array reference error') {
3740: $hash{'error'}='Bad data';
3741: return (\%hash, $string);
3742: }
3743: } else {
3744: $value=&get_scalar(\$string,'__END_HASH_REF__');
3745: }
3746: $string =~ s/^&//;
3747:
3748: $hash{$key}=$value;
1.204 albertel 3749: }
1.265 albertel 3750:
3751: $string =~ s/^__END_HASH_REF__//;
3752:
3753: return (\%hash, $string);
1.204 albertel 3754: }
3755:
3756: sub str2array {
1.265 albertel 3757: my ($string)=@_;
3758: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3759: return @$array;
3760: }
3761:
3762: sub str2arrayref {
1.204 albertel 3763: my ($string) = @_;
1.265 albertel 3764: my @array;
3765:
3766: if($string !~ /^__ARRAY_REF__/) {
3767: if (! ($string eq '' || !defined($string))) {
3768: $array[0]='Array reference error';
3769: }
3770: return (\@array, $string);
3771: }
3772:
3773: $string =~ s/^__ARRAY_REF__//;
3774:
3775: while($string !~ /^__END_ARRAY_REF__/) {
3776: my $value='';
3777: if($string =~ /^__HASH_REF__/) {
3778: ($value, $string)=&str2hashref($string);
3779: if(defined($value->{'error'})) {
3780: $array[0] ='Array reference error';
3781: return (\@array, $string);
3782: }
3783: } elsif($string =~ /^__ARRAY_REF__/) {
3784: ($value, $string)=&str2arrayref($string);
3785: if($value->[0] eq 'Array reference error') {
3786: $array[0] ='Array reference error';
3787: return (\@array, $string);
3788: }
3789: } else {
3790: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3791: }
3792: $string =~ s/^&//;
3793:
3794: push(@array, $value);
1.191 harris41 3795: }
1.265 albertel 3796:
3797: $string =~ s/^__END_ARRAY_REF__//;
3798:
3799: return (\@array, $string);
1.168 albertel 3800: }
3801:
1.167 albertel 3802: # -------------------------------------------------------------------Temp Store
3803:
1.168 albertel 3804: sub tmpreset {
3805: my ($symb,$namespace,$domain,$stuname) = @_;
3806: if (!$symb) {
3807: $symb=&symbread();
1.620 albertel 3808: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3809: }
3810: $symb=escape($symb);
3811:
1.620 albertel 3812: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3813: $namespace=~s/\//\_/g;
3814: $namespace=~s/\W//g;
3815:
1.620 albertel 3816: if (!$domain) { $domain=$env{'user.domain'}; }
3817: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3818: if ($domain eq 'public' && $stuname eq 'public') {
3819: $stuname=$ENV{'REMOTE_ADDR'};
3820: }
1.1117 foxr 3821: my $path=LONCAPA::tempdir();
1.168 albertel 3822: my %hash;
3823: if (tie(%hash,'GDBM_File',
3824: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3825: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 3826: foreach my $key (keys(%hash)) {
1.180 albertel 3827: if ($key=~ /:$symb/) {
1.168 albertel 3828: delete($hash{$key});
3829: }
3830: }
3831: }
3832: }
3833:
1.167 albertel 3834: sub tmpstore {
1.168 albertel 3835: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3836:
3837: if (!$symb) {
3838: $symb=&symbread();
1.620 albertel 3839: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3840: }
3841: $symb=escape($symb);
3842:
3843: if (!$namespace) {
3844: # I don't think we would ever want to store this for a course.
3845: # it seems this will only be used if we don't have a course.
1.620 albertel 3846: #$namespace=$env{'request.course.id'};
1.168 albertel 3847: #if (!$namespace) {
1.620 albertel 3848: $namespace=$env{'request.state'};
1.168 albertel 3849: #}
3850: }
3851: $namespace=~s/\//\_/g;
3852: $namespace=~s/\W//g;
1.620 albertel 3853: if (!$domain) { $domain=$env{'user.domain'}; }
3854: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3855: if ($domain eq 'public' && $stuname eq 'public') {
3856: $stuname=$ENV{'REMOTE_ADDR'};
3857: }
1.168 albertel 3858: my $now=time;
3859: my %hash;
1.1117 foxr 3860: my $path=LONCAPA::tempdir();
1.168 albertel 3861: if (tie(%hash,'GDBM_File',
3862: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3863: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3864: $hash{"version:$symb"}++;
3865: my $version=$hash{"version:$symb"};
3866: my $allkeys='';
3867: foreach my $key (keys(%$storehash)) {
3868: $allkeys.=$key.':';
1.591 albertel 3869: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3870: }
3871: $hash{"$version:$symb:timestamp"}=$now;
3872: $allkeys.='timestamp';
3873: $hash{"$version:keys:$symb"}=$allkeys;
3874: if (untie(%hash)) {
3875: return 'ok';
3876: } else {
3877: return "error:$!";
3878: }
3879: } else {
3880: return "error:$!";
3881: }
3882: }
1.167 albertel 3883:
1.168 albertel 3884: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3885:
1.168 albertel 3886: sub tmprestore {
3887: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3888:
1.168 albertel 3889: if (!$symb) {
3890: $symb=&symbread();
1.620 albertel 3891: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3892: }
3893: $symb=escape($symb);
3894:
1.620 albertel 3895: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3896:
1.620 albertel 3897: if (!$domain) { $domain=$env{'user.domain'}; }
3898: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3899: if ($domain eq 'public' && $stuname eq 'public') {
3900: $stuname=$ENV{'REMOTE_ADDR'};
3901: }
1.168 albertel 3902: my %returnhash;
3903: $namespace=~s/\//\_/g;
3904: $namespace=~s/\W//g;
3905: my %hash;
1.1117 foxr 3906: my $path=LONCAPA::tempdir();
1.168 albertel 3907: if (tie(%hash,'GDBM_File',
3908: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3909: &GDBM_READER(),0640)) {
1.168 albertel 3910: my $version=$hash{"version:$symb"};
3911: $returnhash{'version'}=$version;
3912: my $scope;
3913: for ($scope=1;$scope<=$version;$scope++) {
3914: my $vkeys=$hash{"$scope:keys:$symb"};
3915: my @keys=split(/:/,$vkeys);
3916: my $key;
3917: $returnhash{"$scope:keys"}=$vkeys;
3918: foreach $key (@keys) {
1.591 albertel 3919: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3920: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3921: }
3922: }
1.168 albertel 3923: if (!(untie(%hash))) {
3924: return "error:$!";
3925: }
3926: } else {
3927: return "error:$!";
3928: }
3929: return %returnhash;
1.167 albertel 3930: }
3931:
1.9 www 3932: # ----------------------------------------------------------------------- Store
3933:
3934: sub store {
1.124 www 3935: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3936: my $home='';
3937:
1.168 albertel 3938: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3939:
1.213 www 3940: $symb=&symbclean($symb);
1.122 albertel 3941: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3942:
1.620 albertel 3943: if (!$domain) { $domain=$env{'user.domain'}; }
3944: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3945:
3946: &devalidate($symb,$stuname,$domain);
1.109 www 3947:
3948: $symb=escape($symb);
1.187 www 3949: if (!$namespace) {
1.620 albertel 3950: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3951: return '';
3952: }
3953: }
1.620 albertel 3954: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3955:
3956: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3957: $$storehash{'host'}=$perlvar{'lonHostID'};
3958:
1.12 www 3959: my $namevalue='';
1.800 albertel 3960: foreach my $key (keys(%$storehash)) {
3961: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3962: }
1.12 www 3963: $namevalue=~s/\&$//;
1.187 www 3964: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3965: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3966: }
3967:
1.47 www 3968: # -------------------------------------------------------------- Critical Store
3969:
3970: sub cstore {
1.124 www 3971: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3972: my $home='';
3973:
1.168 albertel 3974: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3975:
1.213 www 3976: $symb=&symbclean($symb);
1.122 albertel 3977: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3978:
1.620 albertel 3979: if (!$domain) { $domain=$env{'user.domain'}; }
3980: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3981:
3982: &devalidate($symb,$stuname,$domain);
1.109 www 3983:
3984: $symb=escape($symb);
1.187 www 3985: if (!$namespace) {
1.620 albertel 3986: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3987: return '';
3988: }
3989: }
1.620 albertel 3990: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3991:
3992: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3993: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3994:
1.47 www 3995: my $namevalue='';
1.800 albertel 3996: foreach my $key (keys(%$storehash)) {
3997: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3998: }
1.47 www 3999: $namevalue=~s/\&$//;
1.187 www 4000: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4001: return critical
4002: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 4003: }
4004:
1.9 www 4005: # --------------------------------------------------------------------- Restore
4006:
4007: sub restore {
1.124 www 4008: my ($symb,$namespace,$domain,$stuname) = @_;
4009: my $home='';
4010:
1.168 albertel 4011: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4012:
1.122 albertel 4013: if (!$symb) {
4014: unless ($symb=escape(&symbread())) { return ''; }
4015: } else {
1.213 www 4016: $symb=&escape(&symbclean($symb));
1.122 albertel 4017: }
1.188 www 4018: if (!$namespace) {
1.620 albertel 4019: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4020: return '';
4021: }
4022: }
1.620 albertel 4023: if (!$domain) { $domain=$env{'user.domain'}; }
4024: if (!$stuname) { $stuname=$env{'user.name'}; }
4025: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4026: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4027:
1.12 www 4028: my %returnhash=();
1.800 albertel 4029: foreach my $line (split(/\&/,$answer)) {
4030: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4031: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4032: }
1.75 www 4033: my $version;
4034: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4035: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4036: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4037: }
1.75 www 4038: }
1.13 www 4039: return %returnhash;
1.34 www 4040: }
4041:
4042: # ---------------------------------------------------------- Course Description
1.1118 foxr 4043: #
4044: #
1.34 www 4045:
4046: sub coursedescription {
1.731 albertel 4047: my ($courseid,$args)=@_;
1.34 www 4048: $courseid=~s/^\///;
1.49 www 4049: $courseid=~s/\_/\//g;
1.34 www 4050: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4051: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4052: my $normalid=$cdomain.'_'.$cnum;
4053: # need to always cache even if we get errors otherwise we keep
4054: # trying and trying and trying to get the course description.
4055: my %envhash=();
4056: my %returnhash=();
1.731 albertel 4057:
4058: my $expiretime=600;
4059: if ($env{'request.course.id'} eq $normalid) {
4060: $expiretime=120;
4061: }
4062:
4063: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4064: if (!$args->{'freshen_cache'}
4065: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4066: foreach my $key (keys(%env)) {
4067: next if ($key !~ /^\Q$prefix\E(.*)/);
4068: my ($setting) = $1;
4069: $returnhash{$setting} = $env{$key};
4070: }
4071: return %returnhash;
4072: }
4073:
1.1118 foxr 4074: # get the data again
4075:
1.731 albertel 4076: if (!$args->{'one_time'}) {
4077: $envhash{'course.'.$normalid.'.last_cache'}=time;
4078: }
1.811 albertel 4079:
1.34 www 4080: if ($chome ne 'no_host') {
1.302 albertel 4081: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 4082: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 4083: my $username = $env{'user.name'}; # Defult username
4084: if(defined $args->{'user'}) {
4085: $username = $args->{'user'};
4086: }
1.129 albertel 4087: $returnhash{'home'}= $chome;
4088: $returnhash{'domain'} = $cdomain;
4089: $returnhash{'num'} = $cnum;
1.741 raeburn 4090: if (!defined($returnhash{'type'})) {
4091: $returnhash{'type'} = 'Course';
4092: }
1.130 albertel 4093: while (my ($name,$value) = each %returnhash) {
1.53 www 4094: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 4095: }
1.270 www 4096: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 4097: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 4098: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 4099: $envhash{'course.'.$normalid.'.home'}=$chome;
4100: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
4101: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 4102: }
4103: }
1.731 albertel 4104: if (!$args->{'one_time'}) {
1.949 raeburn 4105: &appenv(\%envhash);
1.731 albertel 4106: }
1.302 albertel 4107: return %returnhash;
1.461 www 4108: }
4109:
1.1080 raeburn 4110: sub update_released_required {
4111: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
4112: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
4113: $cid = $env{'request.course.id'};
4114: $cdom = $env{'course.'.$cid.'.domain'};
4115: $cnum = $env{'course.'.$cid.'.num'};
4116: $chome = $env{'course.'.$cid.'.home'};
4117: }
4118: if ($needsrelease) {
4119: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
4120: my $needsupdate;
4121: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
4122: $needsupdate = 1;
4123: } else {
4124: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
4125: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
4126: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
4127: $needsupdate = 1;
4128: }
4129: }
4130: if ($needsupdate) {
4131: my %needshash = (
4132: 'internal.releaserequired' => $needsrelease,
4133: );
4134: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
4135: if ($putresult eq 'ok') {
4136: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
4137: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
4138: if (ref($crsinfo{$cid}) eq 'HASH') {
4139: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
4140: &courseidput($cdom,\%crsinfo,$chome,'notime');
4141: }
4142: }
4143: }
4144: }
4145: return;
4146: }
4147:
1.461 www 4148: # -------------------------------------------------See if a user is privileged
4149:
4150: sub privileged {
4151: my ($username,$domain)=@_;
4152: my $rolesdump=&reply("dump:$domain:$username:roles",
4153: &homeserver($username,$domain));
1.1033 raeburn 4154: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
4155: ($rolesdump =~ /^error:/)) {
4156: return 0;
4157: }
1.461 www 4158: my $now=time;
4159: if ($rolesdump ne '') {
1.800 albertel 4160: foreach my $entry (split(/&/,$rolesdump)) {
4161: if ($entry!~/^rolesdef_/) {
4162: my ($area,$role)=split(/=/,$entry);
1.461 www 4163: $area=~s/\_\w\w$//;
4164: my ($trole,$tend,$tstart)=split(/_/,$role);
4165: if (($trole eq 'dc') || ($trole eq 'su')) {
4166: my $active=1;
4167: if ($tend) {
4168: if ($tend<$now) { $active=0; }
4169: }
4170: if ($tstart) {
4171: if ($tstart>$now) { $active=0; }
4172: }
4173: if ($active) { return 1; }
4174: }
4175: }
4176: }
4177: }
4178: return 0;
1.9 www 4179: }
1.1 albertel 4180:
1.103 harris41 4181: # -------------------------------------------------------- Get user privileges
1.11 www 4182:
4183: sub rolesinit {
4184: my ($domain,$username,$authhost)=@_;
1.1034 raeburn 4185: my $now=time;
4186: my %userroles = ('user.login.time' => $now);
1.1086 raeburn 4187: my $extra = &freeze_escape({'skipcheck' => 1});
1.1078 raeburn 4188: my $rolesdump=reply("dump:$domain:$username:roles:.::$extra",$authhost);
1.1033 raeburn 4189: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
1.1078 raeburn 4190: ($rolesdump =~ /^error:/)) {
1.1033 raeburn 4191: return \%userroles;
4192: }
1.11 www 4193: my %allroles=();
1.678 raeburn 4194: my %allgroups=();
1.11 www 4195:
4196: if ($rolesdump ne '') {
1.800 albertel 4197: foreach my $entry (split(/&/,$rolesdump)) {
4198: if ($entry!~/^rolesdef_/) {
4199: my ($area,$role)=split(/=/,$entry);
1.587 albertel 4200: $area=~s/\_\w\w$//;
1.678 raeburn 4201: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 4202: if ($role=~/^cr/) {
1.807 albertel 4203: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
4204: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 4205: ($tend,$tstart)=split('_',$trest);
4206: } else {
4207: $trole=$role;
4208: }
1.678 raeburn 4209: } elsif ($role =~ m|^gr/|) {
4210: ($trole,$tend,$tstart) = split(/_/,$role);
1.1104 raeburn 4211: next if ($tstart eq '-1');
1.678 raeburn 4212: ($trole,$group_privs) = split(/\//,$trole);
4213: $group_privs = &unescape($group_privs);
1.587 albertel 4214: } else {
4215: ($trole,$tend,$tstart)=split(/_/,$role);
4216: }
1.743 albertel 4217: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
4218: $username);
4219: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 4220: if (($tend!=0) && ($tend<$now)) { $trole=''; }
4221: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 4222: if (($area ne '') && ($trole ne '')) {
1.347 albertel 4223: my $spec=$trole.'.'.$area;
4224: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
4225: if ($trole =~ /^cr\//) {
1.567 raeburn 4226: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 4227: } elsif ($trole eq 'gr') {
4228: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 4229: } else {
1.567 raeburn 4230: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 4231: }
1.12 www 4232: }
1.662 raeburn 4233: }
1.191 harris41 4234: }
1.743 albertel 4235: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
4236: $userroles{'user.adv'} = $adv;
4237: $userroles{'user.author'} = $author;
1.620 albertel 4238: $env{'user.adv'}=$adv;
1.11 www 4239: }
1.743 albertel 4240: return \%userroles;
1.11 www 4241: }
4242:
1.567 raeburn 4243: sub set_arearole {
4244: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
4245: # log the associated role with the area
4246: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 4247: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 4248: }
4249:
4250: sub custom_roleprivs {
4251: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
4252: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
4253: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 4254: if (&hostname($homsvr) ne '') {
1.567 raeburn 4255: my ($rdummy,$roledef)=
4256: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
4257: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
4258: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
4259: if (defined($syspriv)) {
1.1043 raeburn 4260: if ($trest =~ /^$match_community$/) {
4261: $syspriv =~ s/bre\&S//;
4262: }
1.567 raeburn 4263: $$allroles{'cm./'}.=':'.$syspriv;
4264: $$allroles{$spec.'./'}.=':'.$syspriv;
4265: }
4266: if ($tdomain ne '') {
4267: if (defined($dompriv)) {
4268: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
4269: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
4270: }
4271: if (($trest ne '') && (defined($coursepriv))) {
4272: $$allroles{'cm.'.$area}.=':'.$coursepriv;
4273: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
4274: }
4275: }
4276: }
4277: }
4278: }
4279:
1.678 raeburn 4280: sub group_roleprivs {
4281: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
4282: my $access = 1;
4283: my $now = time;
4284: if (($tend!=0) && ($tend<$now)) { $access = 0; }
4285: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
4286: if ($access) {
1.811 albertel 4287: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 4288: $$allgroups{$course}{$group} .=':'.$group_privs;
4289: }
4290: }
1.567 raeburn 4291:
4292: sub standard_roleprivs {
4293: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
4294: if (defined($pr{$trole.':s'})) {
4295: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
4296: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
4297: }
4298: if ($tdomain ne '') {
4299: if (defined($pr{$trole.':d'})) {
4300: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4301: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4302: }
4303: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
4304: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
4305: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
4306: }
4307: }
4308: }
4309:
4310: sub set_userprivs {
1.1064 raeburn 4311: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 4312: my $author=0;
4313: my $adv=0;
1.678 raeburn 4314: my %grouproles = ();
4315: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 4316: my @groupkeys;
1.1000 raeburn 4317: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 4318: push(@groupkeys,$role);
4319: }
4320: if (ref($groups_roles) eq 'HASH') {
4321: foreach my $key (keys(%{$groups_roles})) {
4322: unless (grep(/^\Q$key\E$/,@groupkeys)) {
4323: push(@groupkeys,$key);
4324: }
4325: }
4326: }
4327: if (@groupkeys > 0) {
4328: foreach my $role (@groupkeys) {
4329: my ($trole,$area,$sec,$extendedarea);
4330: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
4331: $trole = $1;
4332: $area = $2;
4333: $sec = $3;
4334: $extendedarea = $area.$sec;
4335: if (exists($$allgroups{$area})) {
4336: foreach my $group (keys(%{$$allgroups{$area}})) {
4337: my $spec = $trole.'.'.$extendedarea;
4338: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 4339: $$allgroups{$area}{$group};
1.1064 raeburn 4340: }
1.678 raeburn 4341: }
4342: }
4343: }
4344: }
4345: }
1.800 albertel 4346: foreach my $group (keys(%grouproles)) {
4347: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 4348: }
1.800 albertel 4349: foreach my $role (keys(%{$allroles})) {
4350: my %thesepriv;
1.941 raeburn 4351: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 4352: foreach my $item (split(/:/,$$allroles{$role})) {
4353: if ($item ne '') {
4354: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 4355: if ($restrictions eq '') {
4356: $thesepriv{$privilege}='F';
4357: } elsif ($thesepriv{$privilege} ne 'F') {
4358: $thesepriv{$privilege}.=$restrictions;
4359: }
4360: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
4361: }
4362: }
4363: my $thesestr='';
1.1104 raeburn 4364: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 4365: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
4366: }
4367: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 4368: }
4369: return ($author,$adv);
4370: }
4371:
1.994 raeburn 4372: sub role_status {
1.1104 raeburn 4373: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 4374: my @pwhere = ();
4375: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
4376: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
4377: unless (!defined($$role) || $$role eq '') {
4378: $$where=join('.',@pwhere);
4379: $$trolecode=$$role.'.'.$$where;
4380: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
4381: $$tstatus='is';
1.1104 raeburn 4382: if ($$tstart && $$tstart>$update) {
1.994 raeburn 4383: $$tstatus='future';
1.1034 raeburn 4384: if ($$tstart<$now) {
4385: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 4386: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 4387: my (%allroles,%allgroups,$group_privs,
4388: %groups_roles,@rolecodes);
1.1002 raeburn 4389: my %userroles = (
4390: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
4391: );
1.1064 raeburn 4392: @rolecodes = ('cm');
1.1002 raeburn 4393: my $spec=$$role.'.'.$$where;
4394: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
4395: if ($$role =~ /^cr\//) {
4396: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 4397: push(@rolecodes,'cr');
1.1002 raeburn 4398: } elsif ($$role eq 'gr') {
1.1064 raeburn 4399: push(@rolecodes,$$role);
1.1002 raeburn 4400: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4401: $env{'user.name'});
1.1064 raeburn 4402: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 4403: (undef,my $group_privs) = split(/\//,$trole);
4404: $group_privs = &unescape($group_privs);
4405: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 4406: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 4407: &get_groups_roles($tdomain,$trest,
4408: \%course_roles,\@rolecodes,
4409: \%groups_roles);
1.1002 raeburn 4410: } else {
1.1064 raeburn 4411: push(@rolecodes,$$role);
1.1002 raeburn 4412: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
4413: }
1.1064 raeburn 4414: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
4415: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 4416: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4417: }
4418: }
1.1034 raeburn 4419: $$tstatus = 'is';
1.1002 raeburn 4420: }
1.994 raeburn 4421: }
4422: if ($$tend) {
1.1104 raeburn 4423: if ($$tend<$update) {
1.994 raeburn 4424: $$tstatus='expired';
4425: } elsif ($$tend<$now) {
4426: $$tstatus='will_not';
4427: }
4428: }
4429: }
4430: }
4431: }
4432:
1.1104 raeburn 4433: sub get_groups_roles {
4434: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
4435: return unless((ref($cdom_courseroles) eq 'HASH') &&
4436: (ref($rolecodes) eq 'ARRAY') &&
4437: (ref($groups_roles) eq 'HASH'));
4438: if (keys(%{$cdom_courseroles}) > 0) {
4439: my ($cnum) = ($rest =~ /^($match_courseid)/);
4440: if ($cdom ne '' && $cnum ne '') {
4441: foreach my $key (keys(%{$cdom_courseroles})) {
4442: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
4443: my $crsrole = $1;
4444: my $crssec = $2;
4445: if ($crsrole =~ /^cr/) {
4446: unless (grep(/^cr$/,@{$rolecodes})) {
4447: push(@{$rolecodes},'cr');
4448: }
4449: } else {
4450: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
4451: push(@{$rolecodes},$crsrole);
4452: }
4453: }
4454: my $rolekey = "$crsrole./$cdom/$cnum";
4455: if ($crssec ne '') {
4456: $rolekey .= "/$crssec";
4457: }
4458: $rolekey .= './';
4459: $groups_roles->{$rolekey} = $rolecodes;
4460: }
4461: }
4462: }
4463: }
4464: return;
4465: }
4466:
4467: sub delete_env_groupprivs {
4468: my ($where,$courseroles,$possroles) = @_;
4469: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
4470: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
4471: unless (ref($courseroles->{$udom}) eq 'HASH') {
4472: %{$courseroles->{$udom}} =
4473: &get_my_roles('','','userroles',['active'],
4474: $possroles,[$udom],1);
4475: }
4476: if (ref($courseroles->{$udom}) eq 'HASH') {
4477: foreach my $item (keys(%{$courseroles->{$udom}})) {
4478: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
4479: my $area = '/'.$cdom.'/'.$cnum;
4480: my $privkey = "user.priv.$crsrole.$area";
4481: if ($crssec ne '') {
4482: $privkey .= '/'.$crssec;
4483: }
4484: $privkey .= ".$area/$group";
4485: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
4486: }
4487: }
4488: return;
4489: }
4490:
1.994 raeburn 4491: sub check_adhoc_privs {
1.1104 raeburn 4492: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 4493: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
4494: if ($env{$cckey}) {
4495: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 4496: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 4497: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 4498: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.994 raeburn 4499: }
4500: } else {
1.1088 raeburn 4501: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.994 raeburn 4502: }
4503: }
4504:
4505: sub set_adhoc_privileges {
4506: # role can be cc or ca
1.1088 raeburn 4507: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 4508: my $area = '/'.$dcdom.'/'.$pickedcourse;
4509: my $spec = $role.'.'.$area;
4510: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
4511: $env{'user.name'});
4512: my %ccrole = ();
4513: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
4514: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
4515: &appenv(\%userroles,[$role,'cm']);
4516: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 4517: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
4518: &appenv( {'request.role' => $spec,
4519: 'request.role.domain' => $dcdom,
4520: 'request.course.sec' => ''
4521: }
4522: );
4523: my $tadv=0;
4524: if (&allowed('adv') eq 'F') { $tadv=1; }
4525: &appenv({'request.role.adv' => $tadv});
4526: }
1.994 raeburn 4527: }
4528:
1.12 www 4529: # --------------------------------------------------------------- get interface
4530:
4531: sub get {
1.131 albertel 4532: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4533: my $items='';
1.800 albertel 4534: foreach my $item (@$storearr) {
4535: $items.=&escape($item).'&';
1.191 harris41 4536: }
1.12 www 4537: $items=~s/\&$//;
1.620 albertel 4538: if (!$udomain) { $udomain=$env{'user.domain'}; }
4539: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 4540: my $uhome=&homeserver($uname,$udomain);
4541:
1.133 albertel 4542: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4543: my @pairs=split(/\&/,$rep);
1.273 albertel 4544: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
4545: return @pairs;
4546: }
1.15 www 4547: my %returnhash=();
1.42 www 4548: my $i=0;
1.800 albertel 4549: foreach my $item (@$storearr) {
4550: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4551: $i++;
1.191 harris41 4552: }
1.15 www 4553: return %returnhash;
1.27 www 4554: }
4555:
4556: # --------------------------------------------------------------- del interface
4557:
4558: sub del {
1.133 albertel 4559: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 4560: my $items='';
1.800 albertel 4561: foreach my $item (@$storearr) {
4562: $items.=&escape($item).'&';
1.191 harris41 4563: }
1.984 neumanie 4564:
1.27 www 4565: $items=~s/\&$//;
1.620 albertel 4566: if (!$udomain) { $udomain=$env{'user.domain'}; }
4567: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4568: my $uhome=&homeserver($uname,$udomain);
4569: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4570: }
4571:
4572: # -------------------------------------------------------------- dump interface
4573:
4574: sub dump {
1.1086 raeburn 4575: my ($namespace,$udomain,$uname,$regexp,$range,$extra)=@_;
1.755 albertel 4576: if (!$udomain) { $udomain=$env{'user.domain'}; }
4577: if (!$uname) { $uname=$env{'user.name'}; }
4578: my $uhome=&homeserver($uname,$udomain);
4579: if ($regexp) {
4580: $regexp=&escape($regexp);
4581: } else {
4582: $regexp='.';
4583: }
1.1086 raeburn 4584: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range:$extra",$uhome);
1.755 albertel 4585: my @pairs=split(/\&/,$rep);
4586: my %returnhash=();
1.1098 foxr 4587: if (!($rep =~ /^error/ )) {
4588: foreach my $item (@pairs) {
4589: my ($key,$value)=split(/=/,$item,2);
4590: $key = &unescape($key);
4591: next if ($key =~ /^error: 2 /);
4592: $returnhash{$key}=&thaw_unescape($value);
4593: }
1.755 albertel 4594: }
4595: return %returnhash;
1.407 www 4596: }
4597:
1.1098 foxr 4598:
1.717 albertel 4599: # --------------------------------------------------------- dumpstore interface
4600:
4601: sub dumpstore {
4602: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 4603: if (!$udomain) { $udomain=$env{'user.domain'}; }
4604: if (!$uname) { $uname=$env{'user.name'}; }
4605: my $uhome=&homeserver($uname,$udomain);
4606: if ($regexp) {
4607: $regexp=&escape($regexp);
4608: } else {
4609: $regexp='.';
4610: }
4611: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4612: my @pairs=split(/\&/,$rep);
4613: my %returnhash=();
4614: foreach my $item (@pairs) {
4615: my ($key,$value)=split(/=/,$item,2);
4616: next if ($key =~ /^error: 2 /);
4617: $returnhash{$key}=&thaw_unescape($value);
4618: }
4619: return %returnhash;
1.717 albertel 4620: }
4621:
1.407 www 4622: # -------------------------------------------------------------- keys interface
4623:
4624: sub getkeys {
4625: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 4626: if (!$udomain) { $udomain=$env{'user.domain'}; }
4627: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 4628: my $uhome=&homeserver($uname,$udomain);
4629: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
4630: my @keyarray=();
1.800 albertel 4631: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 4632: next if ($key =~ /^error: 2 /);
1.800 albertel 4633: push(@keyarray,&unescape($key));
1.407 www 4634: }
4635: return @keyarray;
1.318 matthew 4636: }
4637:
1.319 matthew 4638: # --------------------------------------------------------------- currentdump
4639: sub currentdump {
1.328 matthew 4640: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 4641: $courseid = $env{'request.course.id'} if (! defined($courseid));
4642: $sdom = $env{'user.domain'} if (! defined($sdom));
4643: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 4644: my $uhome = &homeserver($sname,$sdom);
4645: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 4646: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 4647: #
1.318 matthew 4648: my %returnhash=();
1.319 matthew 4649: #
4650: if ($rep eq "unknown_cmd") {
4651: # an old lond will not know currentdump
4652: # Do a dump and make it look like a currentdump
1.822 albertel 4653: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 4654: return if ($tmp[0] =~ /^(error:|no_such_host)/);
4655: my %hash = @tmp;
4656: @tmp=();
1.424 matthew 4657: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 4658: } else {
4659: my @pairs=split(/\&/,$rep);
1.800 albertel 4660: foreach my $pair (@pairs) {
4661: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 4662: my ($symb,$param) = split(/:/,$key);
4663: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 4664: &thaw_unescape($value);
1.319 matthew 4665: }
1.191 harris41 4666: }
1.12 www 4667: return %returnhash;
1.424 matthew 4668: }
4669:
4670: sub convert_dump_to_currentdump{
4671: my %hash = %{shift()};
4672: my %returnhash;
4673: # Code ripped from lond, essentially. The only difference
4674: # here is the unescaping done by lonnet::dump(). Conceivably
4675: # we might run in to problems with parameter names =~ /^v\./
4676: while (my ($key,$value) = each(%hash)) {
4677: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 4678: $symb = &unescape($symb);
4679: $param = &unescape($param);
1.424 matthew 4680: next if ($v eq 'version' || $symb eq 'keys');
4681: next if (exists($returnhash{$symb}) &&
4682: exists($returnhash{$symb}->{$param}) &&
4683: $returnhash{$symb}->{'v.'.$param} > $v);
4684: $returnhash{$symb}->{$param}=$value;
4685: $returnhash{$symb}->{'v.'.$param}=$v;
4686: }
4687: #
4688: # Remove all of the keys in the hashes which keep track of
4689: # the version of the parameter.
4690: while (my ($symb,$param_hash) = each(%returnhash)) {
4691: # use a foreach because we are going to delete from the hash.
4692: foreach my $key (keys(%$param_hash)) {
4693: delete($param_hash->{$key}) if ($key =~ /^v\./);
4694: }
4695: }
4696: return \%returnhash;
1.12 www 4697: }
4698:
1.627 albertel 4699: # ------------------------------------------------------ critical inc interface
4700:
4701: sub cinc {
4702: return &inc(@_,'critical');
4703: }
4704:
1.449 matthew 4705: # --------------------------------------------------------------- inc interface
4706:
4707: sub inc {
1.627 albertel 4708: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 4709: if (!$udomain) { $udomain=$env{'user.domain'}; }
4710: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 4711: my $uhome=&homeserver($uname,$udomain);
4712: my $items='';
4713: if (! ref($store)) {
4714: # got a single value, so use that instead
4715: $items = &escape($store).'=&';
4716: } elsif (ref($store) eq 'SCALAR') {
4717: $items = &escape($$store).'=&';
4718: } elsif (ref($store) eq 'ARRAY') {
4719: $items = join('=&',map {&escape($_);} @{$store});
4720: } elsif (ref($store) eq 'HASH') {
4721: while (my($key,$value) = each(%{$store})) {
4722: $items.= &escape($key).'='.&escape($value).'&';
4723: }
4724: }
4725: $items=~s/\&$//;
1.627 albertel 4726: if ($critical) {
4727: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
4728: } else {
4729: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
4730: }
1.449 matthew 4731: }
4732:
1.12 www 4733: # --------------------------------------------------------------- put interface
4734:
4735: sub put {
1.134 albertel 4736: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4737: if (!$udomain) { $udomain=$env{'user.domain'}; }
4738: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4739: my $uhome=&homeserver($uname,$udomain);
1.12 www 4740: my $items='';
1.800 albertel 4741: foreach my $item (keys(%$storehash)) {
4742: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4743: }
1.12 www 4744: $items=~s/\&$//;
1.134 albertel 4745: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 4746: }
4747:
1.631 albertel 4748: # ------------------------------------------------------------ newput interface
4749:
4750: sub newput {
4751: my ($namespace,$storehash,$udomain,$uname)=@_;
4752: if (!$udomain) { $udomain=$env{'user.domain'}; }
4753: if (!$uname) { $uname=$env{'user.name'}; }
4754: my $uhome=&homeserver($uname,$udomain);
4755: my $items='';
4756: foreach my $key (keys(%$storehash)) {
4757: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
4758: }
4759: $items=~s/\&$//;
4760: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
4761: }
4762:
4763: # --------------------------------------------------------- putstore interface
4764:
1.524 raeburn 4765: sub putstore {
1.715 albertel 4766: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 4767: if (!$udomain) { $udomain=$env{'user.domain'}; }
4768: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 4769: my $uhome=&homeserver($uname,$udomain);
4770: my $items='';
1.715 albertel 4771: foreach my $key (keys(%$storehash)) {
4772: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 4773: }
1.715 albertel 4774: $items=~s/\&$//;
1.716 albertel 4775: my $esc_symb=&escape($symb);
4776: my $esc_v=&escape($version);
1.715 albertel 4777: my $reply =
1.716 albertel 4778: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 4779: $uhome);
4780: if ($reply eq 'unknown_cmd') {
1.716 albertel 4781: # gfall back to way things use to be done
1.715 albertel 4782: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
4783: $uname);
1.524 raeburn 4784: }
1.715 albertel 4785: return $reply;
4786: }
4787:
4788: sub old_putstore {
1.716 albertel 4789: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
4790: if (!$udomain) { $udomain=$env{'user.domain'}; }
4791: if (!$uname) { $uname=$env{'user.name'}; }
4792: my $uhome=&homeserver($uname,$udomain);
4793: my %newstorehash;
1.800 albertel 4794: foreach my $item (keys(%$storehash)) {
4795: my $key = $version.':'.&escape($symb).':'.$item;
4796: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 4797: }
4798: my $items='';
4799: my %allitems = ();
1.800 albertel 4800: foreach my $item (keys(%newstorehash)) {
4801: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4802: my $key = $1.':keys:'.$2;
4803: $allitems{$key} .= $3.':';
4804: }
1.800 albertel 4805: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4806: }
1.800 albertel 4807: foreach my $item (keys(%allitems)) {
4808: $allitems{$item} =~ s/\:$//;
4809: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4810: }
4811: $items=~s/\&$//;
4812: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4813: }
4814:
1.47 www 4815: # ------------------------------------------------------ critical put interface
4816:
4817: sub cput {
1.134 albertel 4818: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4819: if (!$udomain) { $udomain=$env{'user.domain'}; }
4820: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4821: my $uhome=&homeserver($uname,$udomain);
1.47 www 4822: my $items='';
1.800 albertel 4823: foreach my $item (keys(%$storehash)) {
4824: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4825: }
1.47 www 4826: $items=~s/\&$//;
1.134 albertel 4827: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4828: }
4829:
4830: # -------------------------------------------------------------- eget interface
4831:
4832: sub eget {
1.133 albertel 4833: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4834: my $items='';
1.800 albertel 4835: foreach my $item (@$storearr) {
4836: $items.=&escape($item).'&';
1.191 harris41 4837: }
1.12 www 4838: $items=~s/\&$//;
1.620 albertel 4839: if (!$udomain) { $udomain=$env{'user.domain'}; }
4840: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4841: my $uhome=&homeserver($uname,$udomain);
4842: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4843: my @pairs=split(/\&/,$rep);
4844: my %returnhash=();
1.42 www 4845: my $i=0;
1.800 albertel 4846: foreach my $item (@$storearr) {
4847: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4848: $i++;
1.191 harris41 4849: }
1.12 www 4850: return %returnhash;
4851: }
4852:
1.667 albertel 4853: # ------------------------------------------------------------ tmpput interface
4854: sub tmpput {
1.802 raeburn 4855: my ($storehash,$server,$context)=@_;
1.667 albertel 4856: my $items='';
1.800 albertel 4857: foreach my $item (keys(%$storehash)) {
4858: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4859: }
4860: $items=~s/\&$//;
1.802 raeburn 4861: if (defined($context)) {
4862: $items .= ':'.&escape($context);
4863: }
1.667 albertel 4864: return &reply("tmpput:$items",$server);
4865: }
4866:
4867: # ------------------------------------------------------------ tmpget interface
4868: sub tmpget {
1.688 albertel 4869: my ($token,$server)=@_;
4870: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4871: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4872: my %returnhash;
4873: foreach my $item (split(/\&/,$rep)) {
4874: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4875: next if ($key =~ /^error: 2 /);
1.667 albertel 4876: $returnhash{&unescape($key)}=&thaw_unescape($value);
4877: }
4878: return %returnhash;
4879: }
4880:
1.1113 raeburn 4881: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 4882: sub tmpdel {
4883: my ($token,$server)=@_;
4884: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4885: return &reply("tmpdel:$token",$server);
4886: }
4887:
1.765 albertel 4888: # -------------------------------------------------- portfolio access checking
4889:
4890: sub portfolio_access {
1.766 albertel 4891: my ($requrl) = @_;
1.765 albertel 4892: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4893: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4894: if ($result) {
4895: my %setters;
4896: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4897: my ($startblock,$endblock) =
4898: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4899: if ($startblock && $endblock) {
4900: return 'B';
4901: }
4902: } else {
4903: my ($startblock,$endblock) =
4904: &Apache::loncommon::blockcheck(\%setters,'port');
4905: if ($startblock && $endblock) {
4906: return 'B';
4907: }
4908: }
4909: }
1.765 albertel 4910: if ($result eq 'ok') {
1.766 albertel 4911: return 'F';
1.765 albertel 4912: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4913: return 'A';
1.765 albertel 4914: }
1.766 albertel 4915: return '';
1.765 albertel 4916: }
4917:
4918: sub get_portfolio_access {
1.767 albertel 4919: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4920:
4921: if (!ref($access_hash)) {
4922: my $current_perms = &get_portfile_permissions($udom,$unum);
4923: my %access_controls = &get_access_controls($current_perms,$group,
4924: $file_name);
4925: $access_hash = $access_controls{$file_name};
4926: }
4927:
1.765 albertel 4928: my ($public,$guest,@domains,@users,@courses,@groups);
4929: my $now = time;
4930: if (ref($access_hash) eq 'HASH') {
4931: foreach my $key (keys(%{$access_hash})) {
4932: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4933: if ($start > $now) {
4934: next;
4935: }
4936: if ($end && $end<$now) {
4937: next;
4938: }
4939: if ($scope eq 'public') {
4940: $public = $key;
4941: last;
4942: } elsif ($scope eq 'guest') {
4943: $guest = $key;
4944: } elsif ($scope eq 'domains') {
4945: push(@domains,$key);
4946: } elsif ($scope eq 'users') {
4947: push(@users,$key);
4948: } elsif ($scope eq 'course') {
4949: push(@courses,$key);
4950: } elsif ($scope eq 'group') {
4951: push(@groups,$key);
4952: }
4953: }
4954: if ($public) {
4955: return 'ok';
4956: }
4957: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4958: if ($guest) {
4959: return $guest;
4960: }
4961: } else {
4962: if (@domains > 0) {
4963: foreach my $domkey (@domains) {
4964: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4965: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4966: return 'ok';
4967: }
4968: }
4969: }
4970: }
4971: if (@users > 0) {
4972: foreach my $userkey (@users) {
1.865 raeburn 4973: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4974: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4975: if (ref($item) eq 'HASH') {
4976: if (($item->{'uname'} eq $env{'user.name'}) &&
4977: ($item->{'udom'} eq $env{'user.domain'})) {
4978: return 'ok';
4979: }
4980: }
4981: }
4982: }
1.765 albertel 4983: }
4984: }
4985: my %roleshash;
4986: my @courses_and_groups = @courses;
4987: push(@courses_and_groups,@groups);
4988: if (@courses_and_groups > 0) {
4989: my (%allgroups,%allroles);
4990: my ($start,$end,$role,$sec,$group);
4991: foreach my $envkey (%env) {
1.1060 raeburn 4992: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4993: my $cid = $2.'_'.$3;
4994: if ($1 eq 'gr') {
4995: $group = $4;
4996: $allgroups{$cid}{$group} = $env{$envkey};
4997: } else {
4998: if ($4 eq '') {
4999: $sec = 'none';
5000: } else {
5001: $sec = $4;
5002: }
5003: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5004: }
1.811 albertel 5005: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5006: my $cid = $2.'_'.$3;
5007: if ($4 eq '') {
5008: $sec = 'none';
5009: } else {
5010: $sec = $4;
5011: }
5012: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5013: }
5014: }
5015: if (keys(%allroles) == 0) {
5016: return;
5017: }
5018: foreach my $key (@courses_and_groups) {
5019: my %content = %{$$access_hash{$key}};
5020: my $cnum = $content{'number'};
5021: my $cdom = $content{'domain'};
5022: my $cid = $cdom.'_'.$cnum;
5023: if (!exists($allroles{$cid})) {
5024: next;
5025: }
5026: foreach my $role_id (keys(%{$content{'roles'}})) {
5027: my @sections = @{$content{'roles'}{$role_id}{'section'}};
5028: my @groups = @{$content{'roles'}{$role_id}{'group'}};
5029: my @status = @{$content{'roles'}{$role_id}{'access'}};
5030: my @roles = @{$content{'roles'}{$role_id}{'role'}};
5031: foreach my $role (keys(%{$allroles{$cid}})) {
5032: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
5033: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
5034: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
5035: if (grep/^all$/,@sections) {
5036: return 'ok';
5037: } else {
5038: if (grep/^$sec$/,@sections) {
5039: return 'ok';
5040: }
5041: }
5042: }
5043: }
5044: if (keys(%{$allgroups{$cid}}) == 0) {
5045: if (grep/^none$/,@groups) {
5046: return 'ok';
5047: }
5048: } else {
5049: if (grep/^all$/,@groups) {
5050: return 'ok';
5051: }
5052: foreach my $group (keys(%{$allgroups{$cid}})) {
5053: if (grep/^$group$/,@groups) {
5054: return 'ok';
5055: }
5056: }
5057: }
5058: }
5059: }
5060: }
5061: }
5062: }
5063: if ($guest) {
5064: return $guest;
5065: }
5066: }
5067: }
5068: return;
5069: }
5070:
5071: sub course_group_datechecker {
5072: my ($dates,$now,$status) = @_;
5073: my ($start,$end) = split(/\./,$dates);
5074: if (!$start && !$end) {
5075: return 'ok';
5076: }
5077: if (grep/^active$/,@{$status}) {
5078: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
5079: return 'ok';
5080: }
5081: }
5082: if (grep/^previous$/,@{$status}) {
5083: if ($end > $now ) {
5084: return 'ok';
5085: }
5086: }
5087: if (grep/^future$/,@{$status}) {
5088: if ($start > $now) {
5089: return 'ok';
5090: }
5091: }
5092: return;
5093: }
5094:
5095: sub parse_portfolio_url {
5096: my ($url) = @_;
5097:
5098: my ($type,$udom,$unum,$group,$file_name);
5099:
1.823 albertel 5100: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 5101: $type = 1;
5102: $udom = $1;
5103: $unum = $2;
5104: $file_name = $3;
1.823 albertel 5105: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 5106: $type = 2;
5107: $udom = $1;
5108: $unum = $2;
5109: $group = $3;
5110: $file_name = $3.'/'.$4;
5111: }
5112: if (wantarray) {
5113: return ($type,$udom,$unum,$file_name,$group);
5114: }
5115: return $type;
5116: }
5117:
5118: sub is_portfolio_url {
5119: my ($url) = @_;
5120: return scalar(&parse_portfolio_url($url));
5121: }
5122:
1.798 raeburn 5123: sub is_portfolio_file {
5124: my ($file) = @_;
1.820 raeburn 5125: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 5126: return 1;
5127: }
5128: return;
5129: }
5130:
1.976 raeburn 5131: sub usertools_access {
1.1084 raeburn 5132: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 5133: my ($access,%tools);
5134: if ($context eq '') {
5135: $context = 'tools';
5136: }
5137: if ($context eq 'requestcourses') {
5138: %tools = (
5139: official => 1,
5140: unofficial => 1,
1.1006 raeburn 5141: community => 1,
1.985 raeburn 5142: );
5143: } else {
5144: %tools = (
5145: aboutme => 1,
5146: blog => 1,
5147: portfolio => 1,
5148: );
5149: }
1.976 raeburn 5150: return if (!defined($tools{$tool}));
5151:
5152: if ((!defined($udom)) || (!defined($uname))) {
5153: $udom = $env{'user.domain'};
5154: $uname = $env{'user.name'};
5155: }
5156:
1.978 raeburn 5157: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
5158: if ($action ne 'reload') {
1.985 raeburn 5159: if ($context eq 'requestcourses') {
5160: return $env{'environment.canrequest.'.$tool};
5161: } else {
5162: return $env{'environment.availabletools.'.$tool};
5163: }
5164: }
1.976 raeburn 5165: }
5166:
5167: my ($toolstatus,$inststatus);
5168:
1.985 raeburn 5169: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
5170: ($action ne 'reload')) {
5171: $toolstatus = $env{'environment.'.$context.'.'.$tool};
1.976 raeburn 5172: $inststatus = $env{'environment.inststatus'};
5173: } else {
1.1084 raeburn 5174: if (ref($userenvref) eq 'HASH') {
5175: $toolstatus = $userenvref->{$context.'.'.$tool};
5176: $inststatus = $userenvref->{'inststatus'};
5177: } else {
5178: my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool,'inststatus');
5179: $toolstatus = $userenv{$context.'.'.$tool};
5180: $inststatus = $userenv{'inststatus'};
5181: }
1.976 raeburn 5182: }
5183:
5184: if ($toolstatus ne '') {
5185: if ($toolstatus) {
5186: $access = 1;
5187: } else {
5188: $access = 0;
5189: }
5190: return $access;
5191: }
5192:
1.1084 raeburn 5193: my ($is_adv,%domdef);
5194: if (ref($is_advref) eq 'HASH') {
5195: $is_adv = $is_advref->{'is_adv'};
5196: } else {
5197: $is_adv = &is_advanced_user($udom,$uname);
5198: }
5199: if (ref($domdefref) eq 'HASH') {
5200: %domdef = %{$domdefref};
5201: } else {
5202: %domdef = &get_domain_defaults($udom);
5203: }
1.976 raeburn 5204: if (ref($domdef{$tool}) eq 'HASH') {
5205: if ($is_adv) {
5206: if ($domdef{$tool}{'_LC_adv'} ne '') {
5207: if ($domdef{$tool}{'_LC_adv'}) {
5208: $access = 1;
5209: } else {
5210: $access = 0;
5211: }
5212: return $access;
5213: }
5214: }
5215: if ($inststatus ne '') {
5216: my ($hasaccess,$hasnoaccess);
5217: foreach my $affiliation (split(/:/,$inststatus)) {
5218: if ($domdef{$tool}{$affiliation} ne '') {
5219: if ($domdef{$tool}{$affiliation}) {
5220: $hasaccess = 1;
5221: } else {
5222: $hasnoaccess = 1;
5223: }
5224: }
5225: }
5226: if ($hasaccess || $hasnoaccess) {
5227: if ($hasaccess) {
5228: $access = 1;
5229: } elsif ($hasnoaccess) {
5230: $access = 0;
5231: }
5232: return $access;
5233: }
5234: } else {
5235: if ($domdef{$tool}{'default'} ne '') {
5236: if ($domdef{$tool}{'default'}) {
5237: $access = 1;
5238: } elsif ($domdef{$tool}{'default'} == 0) {
5239: $access = 0;
5240: }
5241: return $access;
5242: }
5243: }
5244: } else {
1.985 raeburn 5245: if ($context eq 'tools') {
5246: $access = 1;
5247: } else {
5248: $access = 0;
5249: }
1.976 raeburn 5250: return $access;
5251: }
5252: }
5253:
1.1050 raeburn 5254: sub is_course_owner {
5255: my ($cdom,$cnum,$udom,$uname) = @_;
5256: if (($udom eq '') || ($uname eq '')) {
5257: $udom = $env{'user.domain'};
5258: $uname = $env{'user.name'};
5259: }
5260: unless (($udom eq '') || ($uname eq '')) {
5261: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
5262: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
5263: return 1;
5264: } else {
5265: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
5266: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
5267: return 1;
5268: }
5269: }
5270: }
5271: }
5272: return;
5273: }
5274:
1.976 raeburn 5275: sub is_advanced_user {
5276: my ($udom,$uname) = @_;
1.1085 raeburn 5277: if ($udom ne '' && $uname ne '') {
5278: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
5279: return $env{'user.adv'};
5280: }
5281: }
1.976 raeburn 5282: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
5283: my %allroles;
5284: my $is_adv;
5285: foreach my $role (keys(%roleshash)) {
5286: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
5287: my $area = '/'.$tdomain.'/'.$trest;
5288: if ($sec ne '') {
5289: $area .= '/'.$sec;
5290: }
5291: if (($area ne '') && ($trole ne '')) {
5292: my $spec=$trole.'.'.$area;
5293: if ($trole =~ /^cr\//) {
5294: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5295: } elsif ($trole ne 'gr') {
5296: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5297: }
5298: }
5299: }
5300: foreach my $role (keys(%allroles)) {
5301: last if ($is_adv);
5302: foreach my $item (split(/:/,$allroles{$role})) {
5303: if ($item ne '') {
5304: my ($privilege,$restrictions)=split(/&/,$item);
5305: if ($privilege eq 'adv') {
5306: $is_adv = 1;
5307: last;
5308: }
5309: }
5310: }
5311: }
5312: return $is_adv;
5313: }
1.798 raeburn 5314:
1.1035 raeburn 5315: sub check_can_request {
1.1036 raeburn 5316: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 5317: my $canreq = 0;
5318: my ($types,$typename) = &Apache::loncommon::course_types();
5319: my @options = ('approval','validate','autolimit');
5320: my $optregex = join('|',@options);
5321: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
5322: foreach my $type (@{$types}) {
5323: if (&usertools_access($env{'user.name'},
5324: $env{'user.domain'},
5325: $type,undef,'requestcourses')) {
5326: $canreq ++;
1.1036 raeburn 5327: if (ref($request_domains) eq 'HASH') {
5328: push(@{$request_domains->{$type}},$env{'user.domain'});
5329: }
1.1035 raeburn 5330: if ($dom eq $env{'user.domain'}) {
5331: $can_request->{$type} = 1;
5332: }
5333: }
5334: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
5335: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
5336: if (@curr > 0) {
1.1036 raeburn 5337: foreach my $item (@curr) {
5338: if (ref($request_domains) eq 'HASH') {
5339: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
5340: if ($otherdom ne '') {
5341: if (ref($request_domains->{$type}) eq 'ARRAY') {
5342: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
5343: push(@{$request_domains->{$type}},$otherdom);
5344: }
5345: } else {
5346: push(@{$request_domains->{$type}},$otherdom);
5347: }
5348: }
5349: }
5350: }
5351: unless($dom eq $env{'user.domain'}) {
5352: $canreq ++;
1.1035 raeburn 5353: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
5354: $can_request->{$type} = 1;
5355: }
5356: }
5357: }
5358: }
5359: }
5360: }
5361: return $canreq;
5362: }
5363:
1.341 www 5364: # ---------------------------------------------- Custom access rule evaluation
5365:
5366: sub customaccess {
5367: my ($priv,$uri)=@_;
1.807 albertel 5368: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 5369: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 5370: $udom = &LONCAPA::clean_domain($udom);
5371: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 5372: my $access=0;
1.800 albertel 5373: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 5374: my ($effect,$realm,$role,$type)=split(/\:/,$right);
5375: if ($type eq 'user') {
5376: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 5377: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 5378: if ($tdom) {
5379: if ($tdom ne $env{'user.domain'}) { next; }
5380: }
1.896 albertel 5381: if ($tuname) {
5382: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 5383: }
5384: $access=($effect eq 'allow');
5385: last;
5386: }
5387: } else {
5388: if ($role) {
5389: if ($role ne $urole) { next; }
5390: }
5391: foreach my $scope (split(/\s*\,\s*/,$realm)) {
5392: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
5393: if ($tdom) {
5394: if ($tdom ne $udom) { next; }
5395: }
5396: if ($tcrs) {
5397: if ($tcrs ne $ucrs) { next; }
5398: }
5399: if ($tsec) {
5400: if ($tsec ne $usec) { next; }
5401: }
5402: $access=($effect eq 'allow');
5403: last;
5404: }
5405: if ($realm eq '' && $role eq '') {
5406: $access=($effect eq 'allow');
5407: }
1.402 bowersj2 5408: }
1.341 www 5409: }
5410: return $access;
5411: }
5412:
1.103 harris41 5413: # ------------------------------------------------- Check for a user privilege
1.12 www 5414:
5415: sub allowed {
1.810 raeburn 5416: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 5417: my $ver_orguri=$uri;
1.439 www 5418: $uri=&deversion($uri);
1.152 www 5419: my $orguri=$uri;
1.52 www 5420: $uri=&declutter($uri);
1.809 raeburn 5421:
1.810 raeburn 5422: if ($priv eq 'evb') {
5423: # Evade communication block restrictions for specified role in a course
5424: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
5425: return $1;
5426: } else {
5427: return;
5428: }
5429: }
5430:
1.620 albertel 5431: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 5432: # Free bre access to adm and meta resources
1.775 albertel 5433: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 5434: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
5435: && ($priv eq 'bre')) {
1.14 www 5436: return 'F';
1.159 www 5437: }
5438:
1.545 banghart 5439: # Free bre access to user's own portfolio contents
1.714 raeburn 5440: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 5441: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 5442: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 5443: my %setters;
5444: my ($startblock,$endblock) =
5445: &Apache::loncommon::blockcheck(\%setters,'port');
5446: if ($startblock && $endblock) {
5447: return 'B';
5448: } else {
5449: return 'F';
5450: }
1.545 banghart 5451: }
5452:
1.762 raeburn 5453: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 5454: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
5455: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
5456: if (exists($env{'request.course.id'})) {
5457: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5458: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5459: if (($domain eq $cdom) && ($name eq $cnum)) {
5460: my $courseprivid=$env{'request.course.id'};
5461: $courseprivid=~s/\_/\//;
5462: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
5463: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
5464: return $1;
1.762 raeburn 5465: } else {
5466: if ($env{'request.course.sec'}) {
5467: $courseprivid.='/'.$env{'request.course.sec'};
5468: }
5469: if ($env{'user.priv.'.$env{'request.role'}.'./'.
5470: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
5471: return $2;
5472: }
1.714 raeburn 5473: }
5474: }
5475: }
5476: }
5477:
1.159 www 5478: # Free bre to public access
5479:
5480: if ($priv eq 'bre') {
1.238 www 5481: my $copyright=&metadata($uri,'copyright');
1.620 albertel 5482: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 5483: return 'F';
5484: }
1.238 www 5485: if ($copyright eq 'priv') {
5486: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5487: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 5488: return '';
5489: }
5490: }
5491: if ($copyright eq 'domain') {
5492: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5493: unless (($env{'user.domain'} eq $1) ||
5494: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 5495: return '';
5496: }
1.262 matthew 5497: }
1.620 albertel 5498: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 5499: # Library role, so allow browsing of resources in this domain.
5500: return 'F';
1.238 www 5501: }
1.341 www 5502: if ($copyright eq 'custom') {
5503: unless (&customaccess($priv,$uri)) { return ''; }
5504: }
1.14 www 5505: }
1.264 matthew 5506: # Domain coordinator is trying to create a course
1.620 albertel 5507: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 5508: # uri is the requested domain in this case.
5509: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 5510: # a role of dc for the domain in question.
1.620 albertel 5511: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 5512: }
1.29 www 5513:
1.52 www 5514: my $thisallowed='';
5515: my $statecond=0;
5516: my $courseprivid='';
5517:
1.1039 raeburn 5518: my $ownaccess;
1.1043 raeburn 5519: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 5520: if (($priv eq 'bro') && ($env{'user.author'})) {
5521: if ($uri eq '') {
5522: $ownaccess = 1;
5523: } else {
5524: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
5525: my $udom = $env{'user.domain'};
5526: my $uname = $env{'user.name'};
5527: if ($uri =~ m{^\Q$udom\E/?$}) {
5528: $ownaccess = 1;
1.1040 raeburn 5529: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 5530: unless ($uri =~ m{\.\./}) {
5531: $ownaccess = 1;
5532: }
5533: } elsif (($udom ne 'public') && ($uname ne 'public')) {
5534: my $now = time;
5535: if ($uri =~ m{^([^/]+)/?$}) {
5536: my $adom = $1;
5537: foreach my $key (keys(%env)) {
1.1042 raeburn 5538: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 5539: my ($start,$end) = split('.',$env{$key});
5540: if (($now >= $start) && (!$end || $end < $now)) {
5541: $ownaccess = 1;
5542: last;
5543: }
5544: }
5545: }
5546: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
5547: my $adom = $1;
5548: my $aname = $2;
1.1042 raeburn 5549: foreach my $role ('ca','aa') {
5550: if ($env{"user.role.$role./$adom/$aname"}) {
5551: my ($start,$end) =
5552: split('.',$env{"user.role.$role./$adom/$aname"});
5553: if (($now >= $start) && (!$end || $end < $now)) {
5554: $ownaccess = 1;
5555: last;
5556: }
1.1039 raeburn 5557: }
5558: }
5559: }
5560: }
5561: }
5562: }
5563: }
5564:
1.52 www 5565: # Course
5566:
1.620 albertel 5567: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5568: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5569: $thisallowed.=$1;
5570: }
1.52 www 5571: }
1.29 www 5572:
1.52 www 5573: # Domain
5574:
1.620 albertel 5575: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 5576: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5577: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5578: $thisallowed.=$1;
5579: }
1.12 www 5580: }
1.52 www 5581:
5582: # Course: uri itself is a course
1.66 www 5583: my $courseuri=$uri;
5584: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 5585: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 5586:
1.620 albertel 5587: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 5588: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5589: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5590: $thisallowed.=$1;
5591: }
1.12 www 5592: }
1.29 www 5593:
1.665 albertel 5594: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 5595: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 5596: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 5597: $thisallowed='';
1.671 raeburn 5598: my ($match)=&is_on_map($uri);
5599: if ($match) {
5600: if ($env{'user.priv.'.$env{'request.role'}.'./'}
5601: =~/\Q$priv\E\&([^\:]*)/) {
5602: $thisallowed.=$1;
5603: }
5604: } else {
1.705 albertel 5605: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 5606: if ($refuri) {
5607: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 5608: $thisallowed='F';
1.671 raeburn 5609: } else {
5610: $refuri=&declutter($refuri);
5611: my ($match) = &is_on_map($refuri);
5612: if ($match) {
5613: $thisallowed='F';
5614: }
1.669 raeburn 5615: }
1.671 raeburn 5616: }
5617: }
1.314 www 5618: }
1.492 albertel 5619:
1.766 albertel 5620: if ($priv eq 'bre'
5621: && $thisallowed ne 'F'
5622: && $thisallowed ne '2'
5623: && &is_portfolio_url($uri)) {
5624: $thisallowed = &portfolio_access($uri);
5625: }
5626:
1.52 www 5627: # Full access at system, domain or course-wide level? Exit.
1.29 www 5628: if ($thisallowed=~/F/) {
5629: return 'F';
5630: }
5631:
1.52 www 5632: # If this is generating or modifying users, exit with special codes
1.29 www 5633:
1.643 www 5634: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
5635: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 5636: my ($audom,$auname)=split('/',$uri);
1.643 www 5637: # no author name given, so this just checks on the general right to make a co-author in this domain
5638: unless ($auname) { return $thisallowed; }
5639: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 5640: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
5641: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
5642: ($audom ne $env{'request.role.domain'}))) { return ''; }
5643: }
1.52 www 5644: return $thisallowed;
5645: }
5646: #
1.103 harris41 5647: # Gathered so far: system, domain and course wide privileges
1.52 www 5648: #
5649: # Course: See if uri or referer is an individual resource that is part of
5650: # the course
5651:
1.620 albertel 5652: if ($env{'request.course.id'}) {
1.232 www 5653:
1.620 albertel 5654: $courseprivid=$env{'request.course.id'};
5655: if ($env{'request.course.sec'}) {
5656: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 5657: }
5658: $courseprivid=~s/\_/\//;
5659: my $checkreferer=1;
1.232 www 5660: my ($match,$cond)=&is_on_map($uri);
5661: if ($match) {
5662: $statecond=$cond;
1.620 albertel 5663: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5664: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5665: $thisallowed.=$1;
5666: $checkreferer=0;
5667: }
1.29 www 5668: }
1.83 www 5669:
1.148 www 5670: if ($checkreferer) {
1.620 albertel 5671: my $refuri=$env{'httpref.'.$orguri};
1.148 www 5672: unless ($refuri) {
1.800 albertel 5673: foreach my $key (keys(%env)) {
5674: if ($key=~/^httpref\..*\*/) {
5675: my $pattern=$key;
1.156 www 5676: $pattern=~s/^httpref\.\/res\///;
1.148 www 5677: $pattern=~s/\*/\[\^\/\]\+/g;
5678: $pattern=~s/\//\\\//g;
1.152 www 5679: if ($orguri=~/$pattern/) {
1.800 albertel 5680: $refuri=$env{$key};
1.148 www 5681: }
5682: }
1.191 harris41 5683: }
1.148 www 5684: }
1.232 www 5685:
1.148 www 5686: if ($refuri) {
1.152 www 5687: $refuri=&declutter($refuri);
1.232 www 5688: my ($match,$cond)=&is_on_map($refuri);
5689: if ($match) {
5690: my $refstatecond=$cond;
1.620 albertel 5691: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5692: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5693: $thisallowed.=$1;
1.53 www 5694: $uri=$refuri;
5695: $statecond=$refstatecond;
1.52 www 5696: }
5697: }
1.148 www 5698: }
1.29 www 5699: }
1.52 www 5700: }
1.29 www 5701:
1.52 www 5702: #
1.103 harris41 5703: # Gathered now: all privileges that could apply, and condition number
1.52 www 5704: #
5705: #
5706: # Full or no access?
5707: #
1.29 www 5708:
1.52 www 5709: if ($thisallowed=~/F/) {
5710: return 'F';
5711: }
1.29 www 5712:
1.52 www 5713: unless ($thisallowed) {
5714: return '';
5715: }
1.29 www 5716:
1.52 www 5717: # Restrictions exist, deal with them
5718: #
5719: # C:according to course preferences
5720: # R:according to resource settings
5721: # L:unless locked
5722: # X:according to user session state
5723: #
5724:
5725: # Possibly locked functionality, check all courses
1.54 www 5726: # Locks might take effect only after 10 minutes cache expiration for other
5727: # courses, and 2 minutes for current course
1.52 www 5728:
5729: my $envkey;
5730: if ($thisallowed=~/L/) {
1.1000 raeburn 5731: foreach $envkey (keys(%env)) {
1.54 www 5732: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
5733: my $courseid=$2;
5734: my $roleid=$1.'.'.$2;
1.92 www 5735: $courseid=~s/^\///;
1.54 www 5736: my $expiretime=600;
1.620 albertel 5737: if ($env{'request.role'} eq $roleid) {
1.54 www 5738: $expiretime=120;
5739: }
5740: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
5741: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 5742: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 5743: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 5744: }
1.620 albertel 5745: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
5746: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
5747: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
5748: &log($env{'user.domain'},$env{'user.name'},
5749: $env{'user.home'},
1.57 www 5750: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 5751: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5752: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5753: return '';
5754: }
5755: }
1.620 albertel 5756: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
5757: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
5758: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
5759: &log($env{'user.domain'},$env{'user.name'},
5760: $env{'user.home'},
1.57 www 5761: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 5762: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5763: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5764: return '';
5765: }
5766: }
5767: }
1.29 www 5768: }
1.52 www 5769: }
5770:
5771: #
5772: # Rest of the restrictions depend on selected course
5773: #
5774:
1.620 albertel 5775: unless ($env{'request.course.id'}) {
1.766 albertel 5776: if ($thisallowed eq 'A') {
5777: return 'A';
1.814 raeburn 5778: } elsif ($thisallowed eq 'B') {
5779: return 'B';
1.766 albertel 5780: } else {
5781: return '1';
5782: }
1.52 www 5783: }
1.29 www 5784:
1.52 www 5785: #
5786: # Now user is definitely in a course
5787: #
1.53 www 5788:
5789:
5790: # Course preferences
5791:
5792: if ($thisallowed=~/C/) {
1.620 albertel 5793: my $rolecode=(split(/\./,$env{'request.role'}))[0];
5794: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
5795: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 5796: =~/\Q$rolecode\E/) {
1.1103 raeburn 5797: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 5798: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5799: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
5800: $env{'request.course.id'});
5801: }
1.237 www 5802: return '';
5803: }
5804:
1.620 albertel 5805: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 5806: =~/\Q$unamedom\E/) {
1.1103 raeburn 5807: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 5808: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
5809: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
5810: $env{'request.course.id'});
5811: }
1.54 www 5812: return '';
5813: }
1.53 www 5814: }
5815:
5816: # Resource preferences
5817:
5818: if ($thisallowed=~/R/) {
1.620 albertel 5819: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 5820: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 5821: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 5822: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5823: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
5824: }
5825: return '';
1.54 www 5826: }
1.53 www 5827: }
1.30 www 5828:
1.246 www 5829: # Restricted by state or randomout?
1.30 www 5830:
1.52 www 5831: if ($thisallowed=~/X/) {
1.620 albertel 5832: if ($env{'acc.randomout'}) {
1.579 albertel 5833: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 5834: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 5835: return '';
5836: }
1.247 www 5837: }
5838: if (&condval($statecond)) {
1.52 www 5839: return '2';
5840: } else {
5841: return '';
5842: }
5843: }
1.30 www 5844:
1.766 albertel 5845: if ($thisallowed eq 'A') {
5846: return 'A';
1.814 raeburn 5847: } elsif ($thisallowed eq 'B') {
5848: return 'B';
1.766 albertel 5849: }
1.52 www 5850: return 'F';
1.232 www 5851: }
5852:
1.710 albertel 5853: sub split_uri_for_cond {
5854: my $uri=&deversion(&declutter(shift));
5855: my @uriparts=split(/\//,$uri);
5856: my $filename=pop(@uriparts);
5857: my $pathname=join('/',@uriparts);
5858: return ($pathname,$filename);
5859: }
1.232 www 5860: # --------------------------------------------------- Is a resource on the map?
5861:
5862: sub is_on_map {
1.710 albertel 5863: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 5864: #Trying to find the conditional for the file
1.620 albertel 5865: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 5866: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 5867: if ($match) {
1.289 bowersj2 5868: return (1,$1);
5869: } else {
1.434 www 5870: return (0,0);
1.289 bowersj2 5871: }
1.12 www 5872: }
5873:
1.427 www 5874: # --------------------------------------------------------- Get symb from alias
5875:
5876: sub get_symb_from_alias {
5877: my $symb=shift;
5878: my ($map,$resid,$url)=&decode_symb($symb);
5879: # Already is a symb
5880: if ($url) { return $symb; }
5881: # Must be an alias
5882: my $aliassymb='';
5883: my %bighash;
1.620 albertel 5884: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 5885: &GDBM_READER(),0640)) {
5886: my $rid=$bighash{'mapalias_'.$symb};
5887: if ($rid) {
5888: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 5889: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
5890: $resid,$bighash{'src_'.$rid});
1.427 www 5891: }
5892: untie %bighash;
5893: }
5894: return $aliassymb;
5895: }
5896:
1.12 www 5897: # ----------------------------------------------------------------- Define Role
5898:
5899: sub definerole {
5900: if (allowed('mcr','/')) {
5901: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 5902: foreach my $role (split(':',$sysrole)) {
5903: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5904: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
5905: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
5906: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5907: return "refused:s:$crole&$cqual";
5908: }
5909: }
1.191 harris41 5910: }
1.800 albertel 5911: foreach my $role (split(':',$domrole)) {
5912: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5913: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
5914: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
5915: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 5916: return "refused:d:$crole&$cqual";
5917: }
5918: }
1.191 harris41 5919: }
1.800 albertel 5920: foreach my $role (split(':',$courole)) {
5921: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5922: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
5923: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
5924: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5925: return "refused:c:$crole&$cqual";
5926: }
5927: }
1.191 harris41 5928: }
1.620 albertel 5929: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
5930: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5931: "rolesdef_$rolename=".
5932: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 5933: return reply($command,$env{'user.home'});
1.12 www 5934: } else {
5935: return 'refused';
5936: }
1.105 harris41 5937: }
5938:
5939: # ---------------- Make a metadata query against the network of library servers
5940:
5941: sub metadata_query {
1.244 matthew 5942: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 5943: my %rhash;
1.845 albertel 5944: my %libserv = &all_library();
1.244 matthew 5945: my @server_list = (defined($server_array) ? @$server_array
5946: : keys(%libserv) );
5947: for my $server (@server_list) {
1.118 harris41 5948: unless ($custom or $customshow) {
5949: my $reply=&reply("querysend:".&escape($query),$server);
5950: $rhash{$server}=$reply;
5951: }
5952: else {
5953: my $reply=&reply("querysend:".&escape($query).':'.
5954: &escape($custom).':'.&escape($customshow),
5955: $server);
5956: $rhash{$server}=$reply;
5957: }
1.112 harris41 5958: }
1.118 harris41 5959: return \%rhash;
1.240 www 5960: }
5961:
5962: # ----------------------------------------- Send log queries and wait for reply
5963:
5964: sub log_query {
5965: my ($uname,$udom,$query,%filters)=@_;
5966: my $uhome=&homeserver($uname,$udom);
5967: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 5968: my $uhost=&hostname($uhome);
1.800 albertel 5969: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 5970: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
5971: $uhome);
1.479 albertel 5972: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 5973: return get_query_reply($queryid);
5974: }
5975:
1.818 raeburn 5976: # -------------------------- Update MySQL table for portfolio file
5977:
5978: sub update_portfolio_table {
1.821 raeburn 5979: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 5980: if ($group ne '') {
5981: $file_name =~s /^\Q$group\E//;
5982: }
1.818 raeburn 5983: my $homeserver = &homeserver($uname,$udom);
5984: my $queryid=
1.821 raeburn 5985: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
5986: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 5987: my $reply = &get_query_reply($queryid);
5988: return $reply;
5989: }
5990:
1.899 raeburn 5991: # -------------------------- Update MySQL allusers table
5992:
5993: sub update_allusers_table {
5994: my ($uname,$udom,$names) = @_;
5995: my $homeserver = &homeserver($uname,$udom);
5996: my $queryid=
5997: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
5998: 'lastname='.&escape($names->{'lastname'}).'%%'.
5999: 'firstname='.&escape($names->{'firstname'}).'%%'.
6000: 'middlename='.&escape($names->{'middlename'}).'%%'.
6001: 'generation='.&escape($names->{'generation'}).'%%'.
6002: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
6003: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 6004: return;
1.899 raeburn 6005: }
6006:
1.508 raeburn 6007: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 6008:
6009: sub fetch_enrollment_query {
1.511 raeburn 6010: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 6011: my $homeserver;
1.547 raeburn 6012: my $maxtries = 1;
1.508 raeburn 6013: if ($context eq 'automated') {
6014: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 6015: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 6016: } else {
6017: $homeserver = &homeserver($cnum,$dom);
6018: }
1.838 albertel 6019: my $host=&hostname($homeserver);
1.506 raeburn 6020: my $cmd = '';
1.1000 raeburn 6021: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 6022: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 6023: }
6024: $cmd =~ s/%%$//;
6025: $cmd = &escape($cmd);
6026: my $query = 'fetchenrollment';
1.620 albertel 6027: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 6028: unless ($queryid=~/^\Q$host\E\_/) {
6029: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
6030: return 'error: '.$queryid;
6031: }
1.506 raeburn 6032: my $reply = &get_query_reply($queryid);
1.547 raeburn 6033: my $tries = 1;
6034: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
6035: $reply = &get_query_reply($queryid);
6036: $tries ++;
6037: }
1.526 raeburn 6038: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 6039: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 6040: } else {
1.901 albertel 6041: my @responses = split(/:/,$reply);
1.515 raeburn 6042: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 6043: foreach my $line (@responses) {
6044: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 6045: $$replyref{$key} = $value;
6046: }
6047: } else {
1.1117 foxr 6048: my $pathname = LONCAPA::tempdir();
1.800 albertel 6049: foreach my $line (@responses) {
6050: my ($key,$value) = split(/=/,$line);
1.506 raeburn 6051: $$replyref{$key} = $value;
6052: if ($value > 0) {
1.800 albertel 6053: foreach my $item (@{$$affiliatesref{$key}}) {
6054: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 6055: my $destname = $pathname.'/'.$filename;
6056: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 6057: if ($xml_classlist =~ /^error/) {
6058: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
6059: } else {
1.506 raeburn 6060: if ( open(FILE,">$destname") ) {
6061: print FILE &unescape($xml_classlist);
6062: close(FILE);
1.526 raeburn 6063: } else {
6064: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 6065: }
6066: }
6067: }
6068: }
6069: }
6070: }
6071: return 'ok';
6072: }
6073: return 'error';
6074: }
6075:
1.242 www 6076: sub get_query_reply {
6077: my $queryid=shift;
1.1117 foxr 6078: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 6079: my $reply='';
6080: for (1..100) {
6081: sleep 2;
6082: if (-e $replyfile.'.end') {
1.448 albertel 6083: if (open(my $fh,$replyfile)) {
1.904 albertel 6084: $reply = join('',<$fh>);
6085: close($fh);
1.240 www 6086: } else { return 'error: reply_file_error'; }
1.242 www 6087: return &unescape($reply);
6088: }
1.240 www 6089: }
1.242 www 6090: return 'timeout:'.$queryid;
1.240 www 6091: }
6092:
6093: sub courselog_query {
1.241 www 6094: #
6095: # possible filters:
6096: # url: url or symb
6097: # username
6098: # domain
6099: # action: view, submit, grade
6100: # start: timestamp
6101: # end: timestamp
6102: #
1.240 www 6103: my (%filters)=@_;
1.620 albertel 6104: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 6105: if ($filters{'url'}) {
6106: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
6107: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
6108: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
6109: }
1.620 albertel 6110: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
6111: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 6112: return &log_query($cname,$cdom,'courselog',%filters);
6113: }
6114:
6115: sub userlog_query {
1.858 raeburn 6116: #
6117: # possible filters:
6118: # action: log check role
6119: # start: timestamp
6120: # end: timestamp
6121: #
1.240 www 6122: my ($uname,$udom,%filters)=@_;
6123: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 6124: }
6125:
1.506 raeburn 6126: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
6127:
6128: sub auto_run {
1.508 raeburn 6129: my ($cnum,$cdom) = @_;
1.876 raeburn 6130: my $response = 0;
6131: my $settings;
6132: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
6133: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
6134: $settings = $domconfig{'autoenroll'};
6135: if ($settings->{'run'} eq '1') {
6136: $response = 1;
6137: }
6138: } else {
1.934 raeburn 6139: my $homeserver;
6140: if (&is_course($cdom,$cnum)) {
6141: $homeserver = &homeserver($cnum,$cdom);
6142: } else {
6143: $homeserver = &domain($cdom,'primary');
6144: }
6145: if ($homeserver ne 'no_host') {
6146: $response = &reply('autorun:'.$cdom,$homeserver);
6147: }
1.876 raeburn 6148: }
1.506 raeburn 6149: return $response;
6150: }
1.776 albertel 6151:
1.506 raeburn 6152: sub auto_get_sections {
1.508 raeburn 6153: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 6154: my $homeserver;
6155: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6156: $homeserver = &homeserver($cnum,$cdom);
6157: }
6158: if (!defined($homeserver)) {
6159: if ($cdom =~ /^$match_domain$/) {
6160: $homeserver = &domain($cdom,'primary');
6161: }
6162: }
6163: my @secs;
6164: if (defined($homeserver)) {
6165: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
6166: unless ($response eq 'refused') {
6167: @secs = split(/:/,$response);
6168: }
1.506 raeburn 6169: }
6170: return @secs;
6171: }
1.776 albertel 6172:
1.506 raeburn 6173: sub auto_new_course {
1.1099 raeburn 6174: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 6175: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 6176: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 6177: return $response;
6178: }
1.776 albertel 6179:
1.506 raeburn 6180: sub auto_validate_courseID {
1.508 raeburn 6181: my ($cnum,$cdom,$inst_course_id) = @_;
6182: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 6183: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 6184: return $response;
6185: }
1.776 albertel 6186:
1.1007 raeburn 6187: sub auto_validate_instcode {
1.1020 raeburn 6188: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 6189: my ($homeserver,$response);
6190: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6191: $homeserver = &homeserver($cnum,$cdom);
6192: }
6193: if (!defined($homeserver)) {
6194: if ($cdom =~ /^$match_domain$/) {
6195: $homeserver = &domain($cdom,'primary');
6196: }
6197: }
1.1065 raeburn 6198: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
6199: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 6200: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
6201: return ($outcome,$description);
1.1007 raeburn 6202: }
6203:
1.506 raeburn 6204: sub auto_create_password {
1.873 raeburn 6205: my ($cnum,$cdom,$authparam,$udom) = @_;
6206: my ($homeserver,$response);
1.506 raeburn 6207: my $create_passwd = 0;
6208: my $authchk = '';
1.873 raeburn 6209: if ($udom =~ /^$match_domain$/) {
6210: $homeserver = &domain($udom,'primary');
6211: }
6212: if ($homeserver eq '') {
6213: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6214: $homeserver = &homeserver($cnum,$cdom);
6215: }
6216: }
6217: if ($homeserver eq '') {
6218: $authchk = 'nodomain';
1.506 raeburn 6219: } else {
1.873 raeburn 6220: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
6221: if ($response eq 'refused') {
6222: $authchk = 'refused';
6223: } else {
1.901 albertel 6224: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 6225: }
1.506 raeburn 6226: }
6227: return ($authparam,$create_passwd,$authchk);
6228: }
6229:
1.706 raeburn 6230: sub auto_photo_permission {
6231: my ($cnum,$cdom,$students) = @_;
6232: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 6233: my ($outcome,$perm_reqd,$conditions) =
6234: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 6235: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6236: return (undef,undef);
6237: }
1.706 raeburn 6238: return ($outcome,$perm_reqd,$conditions);
6239: }
6240:
6241: sub auto_checkphotos {
6242: my ($uname,$udom,$pid) = @_;
6243: my $homeserver = &homeserver($uname,$udom);
6244: my ($result,$resulttype);
6245: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 6246: &escape($uname).':'.&escape($pid),
6247: $homeserver));
1.709 albertel 6248: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6249: return (undef,undef);
6250: }
1.706 raeburn 6251: if ($outcome) {
6252: ($result,$resulttype) = split(/:/,$outcome);
6253: }
6254: return ($result,$resulttype);
6255: }
6256:
6257: sub auto_photochoice {
6258: my ($cnum,$cdom) = @_;
6259: my $homeserver = &homeserver($cnum,$cdom);
6260: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 6261: &escape($cdom),
6262: $homeserver)));
1.709 albertel 6263: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6264: return (undef,undef);
6265: }
1.706 raeburn 6266: return ($update,$comment);
6267: }
6268:
6269: sub auto_photoupdate {
6270: my ($affiliatesref,$dom,$cnum,$photo) = @_;
6271: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 6272: my $host=&hostname($homeserver);
1.706 raeburn 6273: my $cmd = '';
6274: my $maxtries = 1;
1.800 albertel 6275: foreach my $affiliate (keys(%{$affiliatesref})) {
6276: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 6277: }
6278: $cmd =~ s/%%$//;
6279: $cmd = &escape($cmd);
6280: my $query = 'institutionalphotos';
6281: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
6282: unless ($queryid=~/^\Q$host\E\_/) {
6283: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
6284: return 'error: '.$queryid;
6285: }
6286: my $reply = &get_query_reply($queryid);
6287: my $tries = 1;
6288: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
6289: $reply = &get_query_reply($queryid);
6290: $tries ++;
6291: }
6292: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
6293: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
6294: } else {
6295: my @responses = split(/:/,$reply);
6296: my $outcome = shift(@responses);
6297: foreach my $item (@responses) {
6298: my ($key,$value) = split(/=/,$item);
6299: $$photo{$key} = $value;
6300: }
6301: return $outcome;
6302: }
6303: return 'error';
6304: }
6305:
1.521 raeburn 6306: sub auto_instcode_format {
1.793 albertel 6307: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
6308: $cat_order) = @_;
1.521 raeburn 6309: my $courses = '';
1.772 raeburn 6310: my @homeservers;
1.521 raeburn 6311: if ($caller eq 'global') {
1.841 albertel 6312: my %servers = &get_servers($codedom,'library');
6313: foreach my $tryserver (keys(%servers)) {
6314: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6315: push(@homeservers,$tryserver);
6316: }
1.584 raeburn 6317: }
1.1022 raeburn 6318: } elsif ($caller eq 'requests') {
6319: if ($codedom =~ /^$match_domain$/) {
6320: my $chome = &domain($codedom,'primary');
6321: unless ($chome eq 'no_host') {
6322: push(@homeservers,$chome);
6323: }
6324: }
1.521 raeburn 6325: } else {
1.772 raeburn 6326: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 6327: }
1.793 albertel 6328: foreach my $code (keys(%{$instcodes})) {
6329: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 6330: }
6331: chop($courses);
1.772 raeburn 6332: my $ok_response = 0;
6333: my $response;
6334: while (@homeservers > 0 && $ok_response == 0) {
6335: my $server = shift(@homeservers);
6336: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
6337: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
6338: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 6339: split(/:/,$response);
1.772 raeburn 6340: %{$codes} = (%{$codes},&str2hash($codes_str));
6341: push(@{$codetitles},&str2array($codetitles_str));
6342: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
6343: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
6344: $ok_response = 1;
6345: }
6346: }
6347: if ($ok_response) {
1.521 raeburn 6348: return 'ok';
1.772 raeburn 6349: } else {
6350: return $response;
1.521 raeburn 6351: }
6352: }
6353:
1.792 raeburn 6354: sub auto_instcode_defaults {
6355: my ($domain,$returnhash,$code_order) = @_;
6356: my @homeservers;
1.841 albertel 6357:
6358: my %servers = &get_servers($domain,'library');
6359: foreach my $tryserver (keys(%servers)) {
6360: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6361: push(@homeservers,$tryserver);
6362: }
1.792 raeburn 6363: }
1.841 albertel 6364:
1.792 raeburn 6365: my $response;
1.841 albertel 6366: foreach my $server (@homeservers) {
1.792 raeburn 6367: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 6368: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
6369:
6370: foreach my $pair (split(/\&/,$response)) {
6371: my ($name,$value)=split(/\=/,$pair);
6372: if ($name eq 'code_order') {
6373: @{$code_order} = split(/\&/,&unescape($value));
6374: } else {
6375: $returnhash->{&unescape($name)}=&unescape($value);
6376: }
6377: }
6378: return 'ok';
1.792 raeburn 6379: }
1.841 albertel 6380:
6381: return $response;
1.1003 raeburn 6382: }
6383:
6384: sub auto_possible_instcodes {
1.1007 raeburn 6385: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
6386: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
6387: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
6388: return;
6389: }
1.1003 raeburn 6390: my (@homeservers,$uhome);
6391: if (defined(&domain($domain,'primary'))) {
6392: $uhome=&domain($domain,'primary');
6393: push(@homeservers,&domain($domain,'primary'));
6394: } else {
6395: my %servers = &get_servers($domain,'library');
6396: foreach my $tryserver (keys(%servers)) {
6397: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6398: push(@homeservers,$tryserver);
6399: }
6400: }
6401: }
6402: my $response;
6403: foreach my $server (@homeservers) {
6404: $response=&reply('autopossibleinstcodes:'.$domain,$server);
6405: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 6406: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
6407: split(':',$response);
6408: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
6409: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 6410: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 6411: my ($name,$value)=split('=',$item);
6412: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 6413: }
6414: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 6415: my ($name,$value)=split('=',$item);
6416: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 6417: }
6418: return 'ok';
6419: }
6420: return $response;
6421: }
1.792 raeburn 6422:
1.1010 raeburn 6423: sub auto_courserequest_checks {
6424: my ($dom) = @_;
1.1020 raeburn 6425: my ($homeserver,%validations);
6426: if ($dom =~ /^$match_domain$/) {
6427: $homeserver = &domain($dom,'primary');
6428: }
6429: unless ($homeserver eq 'no_host') {
6430: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
6431: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
6432: my @items = split(/&/,$response);
6433: foreach my $item (@items) {
6434: my ($key,$value) = split('=',$item);
6435: $validations{&unescape($key)} = &thaw_unescape($value);
6436: }
6437: }
6438: }
1.1010 raeburn 6439: return %validations;
6440: }
6441:
1.1020 raeburn 6442: sub auto_courserequest_validation {
6443: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
6444: my ($homeserver,$response);
6445: if ($dom =~ /^$match_domain$/) {
6446: $homeserver = &domain($dom,'primary');
6447: }
6448: unless ($homeserver eq 'no_host') {
1.1021 raeburn 6449:
1.1020 raeburn 6450: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 6451: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 6452: ':'.&escape($instcode).':'.&escape($instseclist),
6453: $homeserver));
6454: }
6455: return $response;
6456: }
6457:
1.777 albertel 6458: sub auto_validate_class_sec {
1.918 raeburn 6459: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 6460: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 6461: my $ownerlist;
6462: if (ref($owners) eq 'ARRAY') {
6463: $ownerlist = join(',',@{$owners});
6464: } else {
6465: $ownerlist = $owners;
6466: }
1.773 raeburn 6467: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 6468: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 6469: return $response;
6470: }
6471:
1.679 raeburn 6472: # ------------------------------------------------------- Course Group routines
6473:
6474: sub get_coursegroups {
1.809 raeburn 6475: my ($cdom,$cnum,$group,$namespace) = @_;
6476: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 6477: }
6478:
1.679 raeburn 6479: sub modify_coursegroup {
6480: my ($cdom,$cnum,$groupsettings) = @_;
6481: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
6482: }
6483:
1.809 raeburn 6484: sub toggle_coursegroup_status {
6485: my ($cdom,$cnum,$group,$action) = @_;
6486: my ($from_namespace,$to_namespace);
6487: if ($action eq 'delete') {
6488: $from_namespace = 'coursegroups';
6489: $to_namespace = 'deleted_groups';
6490: } else {
6491: $from_namespace = 'deleted_groups';
6492: $to_namespace = 'coursegroups';
6493: }
6494: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 6495: if (my $tmp = &error(%curr_group)) {
6496: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
6497: return ('read error',$tmp);
6498: } else {
6499: my %savedsettings = %curr_group;
1.809 raeburn 6500: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 6501: my $deloutcome;
6502: if ($result eq 'ok') {
1.809 raeburn 6503: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 6504: } else {
6505: return ('write error',$result);
6506: }
6507: if ($deloutcome eq 'ok') {
6508: return 'ok';
6509: } else {
6510: return ('delete error',$deloutcome);
6511: }
6512: }
6513: }
6514:
1.679 raeburn 6515: sub modify_group_roles {
1.957 raeburn 6516: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 6517: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
6518: my $role = 'gr/'.&escape($userprivs);
6519: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 6520: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 6521: if ($result eq 'ok') {
6522: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
6523: }
1.679 raeburn 6524: return $result;
6525: }
6526:
6527: sub modify_coursegroup_membership {
6528: my ($cdom,$cnum,$membership) = @_;
6529: my $result = &put('groupmembership',$membership,$cdom,$cnum);
6530: return $result;
6531: }
6532:
1.682 raeburn 6533: sub get_active_groups {
6534: my ($udom,$uname,$cdom,$cnum) = @_;
6535: my $now = time;
6536: my %groups = ();
6537: foreach my $key (keys(%env)) {
1.811 albertel 6538: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 6539: my ($start,$end) = split(/\./,$env{$key});
6540: if (($end!=0) && ($end<$now)) { next; }
6541: if (($start!=0) && ($start>$now)) { next; }
6542: if ($1 eq $cdom && $2 eq $cnum) {
6543: $groups{$3} = $env{$key} ;
6544: }
6545: }
6546: }
6547: return %groups;
6548: }
6549:
1.683 raeburn 6550: sub get_group_membership {
6551: my ($cdom,$cnum,$group) = @_;
6552: return(&dump('groupmembership',$cdom,$cnum,$group));
6553: }
6554:
6555: sub get_users_groups {
6556: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 6557: my @usersgroups;
1.683 raeburn 6558: my $cachetime=1800;
6559:
6560: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 6561: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
6562: if (defined($cached)) {
1.734 albertel 6563: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 6564: } else {
6565: $grouplist = '';
1.816 raeburn 6566: my $courseurl = &courseid_to_courseurl($courseid);
1.1086 raeburn 6567: my $extra = &freeze_escape({'skipcheck' => 1});
6568: my %roleshash = &dump('roles',$udom,$uname,$courseurl,undef,$extra);
1.817 raeburn 6569: my $access_end = $env{'course.'.$courseid.
6570: '.default_enrollment_end_date'};
6571: my $now = time;
6572: foreach my $key (keys(%roleshash)) {
6573: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
6574: my $group = $1;
6575: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
6576: my $start = $2;
6577: my $end = $1;
6578: if ($start == -1) { next; } # deleted from group
6579: if (($start!=0) && ($start>$now)) { next; }
6580: if (($end!=0) && ($end<$now)) {
6581: if ($access_end && $access_end < $now) {
6582: if ($access_end - $end < 86400) {
6583: push(@usersgroups,$group);
1.733 raeburn 6584: }
6585: }
1.817 raeburn 6586: next;
1.733 raeburn 6587: }
1.817 raeburn 6588: push(@usersgroups,$group);
1.683 raeburn 6589: }
6590: }
6591: }
1.817 raeburn 6592: @usersgroups = &sort_course_groups($courseid,@usersgroups);
6593: $grouplist = join(':',@usersgroups);
6594: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 6595: }
1.733 raeburn 6596: return @usersgroups;
1.683 raeburn 6597: }
6598:
6599: sub devalidate_getgroups_cache {
6600: my ($udom,$uname,$cdom,$cnum)=@_;
6601: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 6602:
1.683 raeburn 6603: my $hashid="$udom:$uname:$courseid";
6604: &devalidate_cache_new('getgroups',$hashid);
6605: }
6606:
1.12 www 6607: # ------------------------------------------------------------------ Plain Text
6608:
6609: sub plaintext {
1.988 raeburn 6610: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 6611: if ($short =~ m{^cr/}) {
1.758 albertel 6612: return (split('/',$short))[-1];
6613: }
1.742 raeburn 6614: if (!defined($cid)) {
6615: $cid = $env{'request.course.id'};
6616: }
6617: my %rolenames = (
1.1008 raeburn 6618: Course => 'std',
6619: Community => 'alt1',
1.742 raeburn 6620: );
1.1037 raeburn 6621: if ($cid ne '') {
6622: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
6623: unless ($forcedefault) {
6624: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
6625: &Apache::lonlocal::mt_escape(\$roletext);
6626: return &Apache::lonlocal::mt($roletext);
6627: }
6628: }
6629: }
6630: if ((defined($type)) && (defined($rolenames{$type})) &&
6631: (defined($rolenames{$type})) &&
6632: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 6633: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 6634: } elsif ($cid ne '') {
6635: my $crstype = $env{'course.'.$cid.'.type'};
6636: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
6637: (defined($prp{$short}{$rolenames{$crstype}}))) {
6638: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
6639: }
1.742 raeburn 6640: }
1.1037 raeburn 6641: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 6642: }
6643:
6644: # ----------------------------------------------------------------- Assign Role
6645:
6646: sub assignrole {
1.957 raeburn 6647: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
6648: $context)=@_;
1.21 www 6649: my $mrole;
6650: if ($role =~ /^cr\//) {
1.393 www 6651: my $cwosec=$url;
1.811 albertel 6652: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 6653: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 6654: my $refused = 1;
6655: if ($context eq 'requestcourses') {
6656: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
6657: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
6658: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
6659: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
6660: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6661: if ($crsenv{'internal.courseowner'} eq
6662: $env{'user.name'}.':'.$env{'user.domain'}) {
6663: $refused = '';
6664: }
6665: }
6666: }
6667: }
6668: }
6669: if ($refused) {
6670: &logthis('Refused custom assignrole: '.
6671: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
6672: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
6673: return 'refused';
6674: }
1.104 www 6675: }
1.21 www 6676: $mrole='cr';
1.678 raeburn 6677: } elsif ($role =~ /^gr\//) {
6678: my $cwogrp=$url;
1.811 albertel 6679: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 6680: unless (&allowed('mdg',$cwogrp)) {
6681: &logthis('Refused group assignrole: '.
6682: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
6683: $env{'user.name'}.' at '.$env{'user.domain'});
6684: return 'refused';
6685: }
6686: $mrole='gr';
1.21 www 6687: } else {
1.82 www 6688: my $cwosec=$url;
1.811 albertel 6689: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 6690: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
6691: my $refused;
6692: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
6693: if (!(&allowed('c'.$role,$url))) {
6694: $refused = 1;
6695: }
6696: } else {
6697: $refused = 1;
6698: }
1.947 raeburn 6699: if ($refused) {
1.1045 raeburn 6700: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
6701: if (!$selfenroll && $context eq 'course') {
6702: my %crsenv;
6703: if ($role eq 'cc' || $role eq 'co') {
6704: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6705: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
6706: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
6707: if ($crsenv{'internal.courseowner'} eq
6708: $env{'user.name'}.':'.$env{'user.domain'}) {
6709: $refused = '';
6710: }
6711: }
6712: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
6713: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
6714: if ($crsenv{'internal.courseowner'} eq
6715: $env{'user.name'}.':'.$env{'user.domain'}) {
6716: $refused = '';
6717: }
6718: }
6719: }
6720: }
6721: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 6722: $refused = '';
1.1017 raeburn 6723: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 6724: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 6725: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 6726: my $wrongcc;
6727: if ($cnum =~ /^$match_community$/) {
6728: $wrongcc = 1 if ($role eq 'cc');
6729: } else {
6730: $wrongcc = 1 if ($role eq 'co');
6731: }
6732: unless ($wrongcc) {
6733: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6734: if ($crsenv{'internal.courseowner'} eq
6735: $env{'user.name'}.':'.$env{'user.domain'}) {
6736: $refused = '';
6737: }
1.1017 raeburn 6738: }
6739: }
6740: }
6741: if ($refused) {
1.947 raeburn 6742: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
6743: ' '.$role.' '.$end.' '.$start.' by '.
6744: $env{'user.name'}.' at '.$env{'user.domain'});
6745: return 'refused';
6746: }
1.932 raeburn 6747: }
1.104 www 6748: }
1.21 www 6749: $mrole=$role;
6750: }
1.620 albertel 6751: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 6752: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 6753: if ($end) { $command.='_'.$end; }
1.21 www 6754: if ($start) {
6755: if ($end) {
1.81 www 6756: $command.='_'.$start;
1.21 www 6757: } else {
1.81 www 6758: $command.='_0_'.$start;
1.21 www 6759: }
6760: }
1.739 raeburn 6761: my $origstart = $start;
6762: my $origend = $end;
1.957 raeburn 6763: my $delflag;
1.357 www 6764: # actually delete
6765: if ($deleteflag) {
1.373 www 6766: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 6767: # modify command to delete the role
1.620 albertel 6768: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 6769: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 6770: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 6771: # set start and finish to negative values for userrolelog
6772: $start=-1;
6773: $end=-1;
1.957 raeburn 6774: $delflag = 1;
1.357 www 6775: }
6776: }
6777: # send command
1.349 www 6778: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 6779: # log new user role if status is ok
1.349 www 6780: if ($answer eq 'ok') {
1.663 raeburn 6781: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 6782: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 6783: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 6784: unless ($role =~ /^gr/) {
6785: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 6786: $origstart,$selfenroll,$context);
1.739 raeburn 6787: }
1.1053 raeburn 6788: if ($role eq 'cc') {
6789: &autoupdate_coowners($url,$end,$start,$uname,$udom);
6790: }
1.349 www 6791: }
6792: return $answer;
1.169 harris41 6793: }
6794:
1.1053 raeburn 6795: sub autoupdate_coowners {
6796: my ($url,$end,$start,$uname,$udom) = @_;
6797: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
6798: if (($cdom ne '') && ($cnum ne '')) {
6799: my $now = time;
6800: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
6801: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
6802: my %coursehash = &coursedescription($cdom.'_'.$cnum);
6803: my $instcode = $coursehash{'internal.coursecode'};
6804: if ($instcode ne '') {
1.1056 raeburn 6805: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
6806: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 6807: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 6808: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
6809: if ($result eq 'valid') {
6810: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 6811: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
6812: push(@newcoowners,$coowner);
6813: }
6814: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
6815: push(@newcoowners,$uname.':'.$udom);
6816: }
6817: @newcoowners = sort(@newcoowners);
6818: } else {
6819: push(@newcoowners,$uname.':'.$udom);
6820: }
6821: } else {
6822: if ($coursehash{'internal.co-owners'}) {
6823: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
6824: unless ($coowner eq $uname.':'.$udom) {
6825: push(@newcoowners,$coowner);
6826: }
6827: }
6828: unless (@newcoowners > 0) {
6829: $delcoowners = 1;
6830: $coowners = '';
6831: }
6832: }
6833: }
6834: if (@newcoowners || $delcoowners) {
6835: &store_coowners($cdom,$cnum,$coursehash{'home'},
6836: $delcoowners,@newcoowners);
6837: }
6838: }
6839: }
6840: }
6841: }
6842: }
6843: }
6844:
6845: sub store_coowners {
6846: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
6847: my $cid = $cdom.'_'.$cnum;
6848: my ($coowners,$delresult,$putresult);
6849: if (@newcoowners) {
6850: $coowners = join(',',@newcoowners);
6851: my %coownershash = (
6852: 'internal.co-owners' => $coowners,
6853: );
6854: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
6855: if ($putresult eq 'ok') {
6856: if ($env{'course.'.$cid.'.num'} eq $cnum) {
6857: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
6858: }
6859: }
6860: }
6861: if ($delcoowners) {
6862: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
6863: if ($delresult eq 'ok') {
6864: if ($env{'course.'.$cid.'.internal.co-owners'}) {
6865: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
6866: }
6867: }
6868: }
6869: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
6870: my %crsinfo =
6871: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
6872: if (ref($crsinfo{$cid}) eq 'HASH') {
6873: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
6874: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
6875: }
6876: }
6877: }
6878:
1.169 harris41 6879: # -------------------------------------------------- Modify user authentication
1.197 www 6880: # Overrides without validation
6881:
1.169 harris41 6882: sub modifyuserauth {
6883: my ($udom,$uname,$umode,$upass)=@_;
6884: my $uhome=&homeserver($uname,$udom);
1.197 www 6885: unless (&allowed('mau',$udom)) { return 'refused'; }
6886: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 6887: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6888: ' in domain '.$env{'request.role.domain'});
1.169 harris41 6889: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
6890: &escape($upass),$uhome);
1.620 albertel 6891: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 6892: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
6893: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
6894: &log($udom,,$uname,$uhome,
1.620 albertel 6895: 'Authentication changed by '.$env{'user.domain'}.', '.
6896: $env{'user.name'}.', '.$umode.
1.197 www 6897: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 6898: unless ($reply eq 'ok') {
1.197 www 6899: &logthis('Authentication mode error: '.$reply);
1.169 harris41 6900: return 'error: '.$reply;
6901: }
1.170 harris41 6902: return 'ok';
1.80 www 6903: }
6904:
1.81 www 6905: # --------------------------------------------------------------- Modify a user
1.80 www 6906:
1.81 www 6907: sub modifyuser {
1.206 matthew 6908: my ($udom, $uname, $uid,
6909: $umode, $upass, $first,
6910: $middle, $last, $gene,
1.1058 raeburn 6911: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 6912: $udom= &LONCAPA::clean_domain($udom);
6913: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 6914: my $showcandelete = 'none';
6915: if (ref($candelete) eq 'ARRAY') {
6916: if (@{$candelete} > 0) {
6917: $showcandelete = join(', ',@{$candelete});
6918: }
6919: }
1.81 www 6920: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 6921: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 6922: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 6923: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
6924: ' desiredhome not specified').
1.620 albertel 6925: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6926: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 6927: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 6928: my $newuser;
6929: if ($uhome eq 'no_host') {
6930: $newuser = 1;
6931: }
1.80 www 6932: # ----------------------------------------------------------------- Create User
1.406 albertel 6933: if (($uhome eq 'no_host') &&
6934: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 6935: my $unhome='';
1.844 albertel 6936: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 6937: $unhome = $desiredhome;
1.620 albertel 6938: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
6939: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 6940: } else { # load balancing routine for determining $unhome
1.81 www 6941: my $loadm=10000000;
1.841 albertel 6942: my %servers = &get_servers($udom,'library');
6943: foreach my $tryserver (keys(%servers)) {
6944: my $answer=reply('load',$tryserver);
6945: if (($answer=~/\d+/) && ($answer<$loadm)) {
6946: $loadm=$answer;
6947: $unhome=$tryserver;
6948: }
1.80 www 6949: }
6950: }
6951: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 6952: return 'error: unable to find a home server for '.$uname.
6953: ' in domain '.$udom;
1.80 www 6954: }
6955: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
6956: &escape($upass),$unhome);
6957: unless ($reply eq 'ok') {
6958: return 'error: '.$reply;
6959: }
1.230 stredwic 6960: $uhome=&homeserver($uname,$udom,'true');
1.80 www 6961: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 6962: return 'error: unable verify users home machine.';
1.80 www 6963: }
1.209 matthew 6964: } # End of creation of new user
1.80 www 6965: # ---------------------------------------------------------------------- Add ID
6966: if ($uid) {
6967: $uid=~tr/A-Z/a-z/;
6968: my %uidhash=&idrget($udom,$uname);
1.196 www 6969: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
6970: && (!$forceid)) {
1.80 www 6971: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 6972: return 'error: user id "'.$uid.'" does not match '.
6973: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 6974: }
6975: } else {
6976: &idput($udom,($uname => $uid));
6977: }
6978: }
6979: # -------------------------------------------------------------- Add names, etc
1.313 matthew 6980: my @tmp=&get('environment',
1.899 raeburn 6981: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 6982: 'permanentemail','inststatus'],
1.134 albertel 6983: $udom,$uname);
1.1075 raeburn 6984: my (%names,%oldnames);
1.313 matthew 6985: if ($tmp[0] =~ m/^error:.*/) {
6986: %names=();
6987: } else {
6988: %names = @tmp;
1.1075 raeburn 6989: %oldnames = %names;
1.313 matthew 6990: }
1.388 www 6991: #
1.1058 raeburn 6992: # If name, email and/or uid are blank (e.g., because an uploaded file
6993: # of users did not contain them), do not overwrite existing values
6994: # unless field is in $candelete array ref.
6995: #
6996:
6997: my @fields = ('firstname','middlename','lastname','generation',
6998: 'permanentemail','id');
6999: my %newvalues;
7000: if (ref($candelete) eq 'ARRAY') {
7001: foreach my $field (@fields) {
7002: if (grep(/^\Q$field\E$/,@{$candelete})) {
7003: if ($field eq 'firstname') {
7004: $names{$field} = $first;
7005: } elsif ($field eq 'middlename') {
7006: $names{$field} = $middle;
7007: } elsif ($field eq 'lastname') {
7008: $names{$field} = $last;
7009: } elsif ($field eq 'generation') {
7010: $names{$field} = $gene;
7011: } elsif ($field eq 'permanentemail') {
7012: $names{$field} = $email;
7013: } elsif ($field eq 'id') {
7014: $names{$field} = $uid;
7015: }
7016: }
7017: }
7018: }
1.388 www 7019: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 7020: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 7021: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 7022: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 7023: if ($email) {
7024: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 7025: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 7026: }
1.899 raeburn 7027: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 7028: if (defined($inststatus)) {
7029: $names{'inststatus'} = '';
7030: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
7031: if (ref($usertypes) eq 'HASH') {
7032: my @okstatuses;
7033: foreach my $item (split(/:/,$inststatus)) {
7034: if (defined($usertypes->{$item})) {
7035: push(@okstatuses,$item);
7036: }
7037: }
7038: if (@okstatuses) {
7039: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
7040: }
7041: }
7042: }
1.1075 raeburn 7043: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 7044: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 7045: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 7046: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
7047: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
7048: } else {
7049: $logmsg .= ' during self creation';
7050: }
1.1075 raeburn 7051: my $changed;
7052: if ($newuser) {
7053: $changed = 1;
7054: } else {
7055: foreach my $field (@fields) {
7056: if ($names{$field} ne $oldnames{$field}) {
7057: $changed = 1;
7058: last;
7059: }
7060: }
7061: }
7062: unless ($changed) {
7063: $logmsg = 'No changes in user information needed for: '.$logmsg;
7064: &logthis($logmsg);
7065: return 'ok';
7066: }
7067: my $reply = &put('environment', \%names, $udom,$uname);
7068: if ($reply ne 'ok') {
7069: return 'error: '.$reply;
7070: }
1.1087 raeburn 7071: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
7072: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
7073: }
1.1075 raeburn 7074: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
7075: &devalidate_cache_new('namescache',$uname.':'.$udom);
7076: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 7077: &logthis($logmsg);
1.134 albertel 7078: return 'ok';
1.80 www 7079: }
7080:
1.81 www 7081: # -------------------------------------------------------------- Modify student
1.80 www 7082:
1.81 www 7083: sub modifystudent {
7084: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 7085: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 7086: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 7087: if (!$cid) {
1.620 albertel 7088: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 7089: return 'not_in_class';
7090: }
1.80 www 7091: }
7092: # --------------------------------------------------------------- Make the user
1.81 www 7093: my $reply=&modifyuser
1.209 matthew 7094: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 7095: $desiredhome,$email,$inststatus);
1.80 www 7096: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 7097: # This will cause &modify_student_enrollment to get the uid from the
7098: # students environment
7099: $uid = undef if (!$forceid);
1.455 albertel 7100: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 7101: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 7102: return $reply;
7103: }
7104:
7105: sub modify_student_enrollment {
1.957 raeburn 7106: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 7107: my ($cdom,$cnum,$chome);
7108: if (!$cid) {
1.620 albertel 7109: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 7110: return 'not_in_class';
7111: }
1.620 albertel 7112: $cdom=$env{'course.'.$cid.'.domain'};
7113: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 7114: } else {
7115: ($cdom,$cnum)=split(/_/,$cid);
7116: }
1.620 albertel 7117: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 7118: if (!$chome) {
1.457 raeburn 7119: $chome=&homeserver($cnum,$cdom);
1.297 matthew 7120: }
1.455 albertel 7121: if (!$chome) { return 'unknown_course'; }
1.297 matthew 7122: # Make sure the user exists
1.81 www 7123: my $uhome=&homeserver($uname,$udom);
7124: if (($uhome eq '') || ($uhome eq 'no_host')) {
7125: return 'error: no such user';
7126: }
1.297 matthew 7127: # Get student data if we were not given enough information
7128: if (!defined($first) || $first eq '' ||
7129: !defined($last) || $last eq '' ||
7130: !defined($uid) || $uid eq '' ||
7131: !defined($middle) || $middle eq '' ||
7132: !defined($gene) || $gene eq '') {
1.294 matthew 7133: # They did not supply us with enough data to enroll the student, so
7134: # we need to pick up more information.
1.297 matthew 7135: my %tmp = &get('environment',
1.294 matthew 7136: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 7137: ,$udom,$uname);
7138:
1.800 albertel 7139: #foreach my $key (keys(%tmp)) {
7140: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 7141: #}
1.294 matthew 7142: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
7143: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
7144: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 7145: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 7146: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
7147: }
1.556 albertel 7148: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 7149: my $reply=cput('classlist',
7150: {"$uname:$udom" =>
1.515 raeburn 7151: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 7152: $cdom,$cnum);
1.81 www 7153: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
7154: return 'error: '.$reply;
1.652 albertel 7155: } else {
7156: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 7157: }
1.297 matthew 7158: # Add student role to user
1.83 www 7159: my $uurl='/'.$cid;
1.81 www 7160: $uurl=~s/\_/\//g;
7161: if ($usec) {
7162: $uurl.='/'.$usec;
7163: }
1.957 raeburn 7164: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 7165: }
7166:
1.556 albertel 7167: sub format_name {
7168: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
7169: my $name;
7170: if ($first ne 'lastname') {
7171: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
7172: } else {
7173: if ($lastname=~/\S/) {
7174: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
7175: $name=~s/\s+,/,/;
7176: } else {
7177: $name.= $firstname.' '.$middlename.' '.$generation;
7178: }
7179: }
7180: $name=~s/^\s+//;
7181: $name=~s/\s+$//;
7182: $name=~s/\s+/ /g;
7183: return $name;
7184: }
7185:
1.84 www 7186: # ------------------------------------------------- Write to course preferences
7187:
7188: sub writecoursepref {
7189: my ($courseid,%prefs)=@_;
7190: $courseid=~s/^\///;
7191: $courseid=~s/\_/\//g;
7192: my ($cdomain,$cnum)=split(/\//,$courseid);
7193: my $chome=homeserver($cnum,$cdomain);
7194: if (($chome eq '') || ($chome eq 'no_host')) {
7195: return 'error: no such course';
7196: }
7197: my $cstring='';
1.800 albertel 7198: foreach my $pref (keys(%prefs)) {
7199: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 7200: }
1.84 www 7201: $cstring=~s/\&$//;
7202: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
7203: }
7204:
7205: # ---------------------------------------------------------- Make/modify course
7206:
7207: sub createcourse {
1.741 raeburn 7208: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 7209: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 7210: $url=&declutter($url);
7211: my $cid='';
1.1028 raeburn 7212: if ($context eq 'requestcourses') {
7213: my $can_create = 0;
7214: my ($ownername,$ownerdom) = split(':',$course_owner);
7215: if ($udom eq $ownerdom) {
7216: if (&usertools_access($ownername,$ownerdom,$category,undef,
7217: $context)) {
7218: $can_create = 1;
7219: }
7220: } else {
7221: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
7222: $category);
7223: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
7224: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
7225: if (@curr > 0) {
7226: my @options = qw(approval validate autolimit);
7227: my $optregex = join('|',@options);
7228: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
7229: $can_create = 1;
7230: }
7231: }
7232: }
7233: }
7234: if ($can_create) {
7235: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
7236: unless (&allowed('ccc',$udom)) {
7237: return 'refused';
7238: }
1.1017 raeburn 7239: }
7240: } else {
7241: return 'refused';
7242: }
1.1028 raeburn 7243: } elsif (!&allowed('ccc',$udom)) {
7244: return 'refused';
1.84 www 7245: }
1.1011 raeburn 7246: # --------------------------------------------------------------- Get Unique ID
7247: my $uname;
7248: if ($cnum =~ /^$match_courseid$/) {
7249: my $chome=&homeserver($cnum,$udom,'true');
7250: if (($chome eq '') || ($chome eq 'no_host')) {
7251: $uname = $cnum;
7252: } else {
1.1038 raeburn 7253: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 7254: }
7255: } else {
1.1038 raeburn 7256: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 7257: }
7258: return $uname if ($uname =~ /^error/);
7259: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 7260: if (!defined($course_server)) {
7261: if (defined(&domain($udom,'primary'))) {
7262: $course_server = &domain($udom,'primary');
7263: } else {
7264: $course_server = $env{'user.home'};
7265: }
7266: }
7267: my %host_servers =
7268: &Apache::lonnet::get_servers($udom,'library');
7269: unless ($host_servers{$course_server}) {
7270: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 7271: }
1.84 www 7272: # ------------------------------------------------------------- Make the course
7273: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 7274: $course_server);
1.84 www 7275: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 7276: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 7277: if (($uhome eq '') || ($uhome eq 'no_host')) {
7278: return 'error: no such course';
7279: }
1.271 www 7280: # ----------------------------------------------------------------- Course made
1.516 raeburn 7281: # log existence
1.1029 raeburn 7282: my $now = time;
1.918 raeburn 7283: my $newcourse = {
7284: $udom.'_'.$uname => {
1.921 raeburn 7285: description => $description,
7286: inst_code => $inst_code,
7287: owner => $course_owner,
7288: type => $crstype,
1.1029 raeburn 7289: creator => $env{'user.name'}.':'.
7290: $env{'user.domain'},
7291: created => $now,
7292: context => $context,
1.918 raeburn 7293: },
7294: };
1.921 raeburn 7295: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 7296: # set toplevel url
1.271 www 7297: my $topurl=$url;
7298: unless ($nonstandard) {
7299: # ------------------------------------------ For standard courses, make top url
7300: my $mapurl=&clutter($url);
1.278 www 7301: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 7302: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 7303: <map>
7304: <resource id="1" type="start"></resource>
7305: <resource id="2" src="$mapurl"></resource>
7306: <resource id="3" type="finish"></resource>
7307: <link index="1" from="1" to="2"></link>
7308: <link index="2" from="2" to="3"></link>
7309: </map>
7310: ENDINITMAP
7311: $topurl=&declutter(
1.638 albertel 7312: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 7313: );
7314: }
7315: # ----------------------------------------------------------- Write preferences
1.84 www 7316: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 7317: ('description' => $description,
7318: 'url' => $topurl,
7319: 'internal.creator' => $env{'user.name'}.':'.
7320: $env{'user.domain'},
7321: 'internal.created' => $now,
7322: 'internal.creationcontext' => $context)
7323: );
1.84 www 7324: return '/'.$udom.'/'.$uname;
7325: }
7326:
1.1011 raeburn 7327: # ------------------------------------------------------------------- Create ID
7328: sub generate_coursenum {
1.1038 raeburn 7329: my ($udom,$crstype) = @_;
1.1011 raeburn 7330: my $domdesc = &domain($udom);
7331: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 7332: my $first;
7333: if ($crstype eq 'Community') {
7334: $first = '0';
7335: } else {
7336: $first = int(1+rand(9));
7337: }
7338: my $uname=$first.
1.1011 raeburn 7339: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
7340: substr($$.time,0,5).unpack("H8",pack("I32",time)).
7341: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
7342: # ----------------------------------------------- Make sure that does not exist
7343: my $uhome=&homeserver($uname,$udom,'true');
7344: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 7345: if ($crstype eq 'Community') {
7346: $first = '0';
7347: } else {
7348: $first = int(1+rand(9));
7349: }
7350: $uname=$first.
1.1011 raeburn 7351: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
7352: substr($$.time,0,5).unpack("H8",pack("I32",time)).
7353: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
7354: $uhome=&homeserver($uname,$udom,'true');
7355: unless (($uhome eq '') || ($uhome eq 'no_host')) {
7356: return 'error: unable to generate unique course-ID';
7357: }
7358: }
7359: return $uname;
7360: }
7361:
1.813 albertel 7362: sub is_course {
7363: my ($cdom,$cnum) = @_;
7364: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 7365: undef,'.');
1.813 albertel 7366: if (exists($courses{$cdom.'_'.$cnum})) {
7367: return 1;
7368: }
7369: return 0;
7370: }
7371:
1.1015 raeburn 7372: sub store_userdata {
7373: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 7374: my $result;
1.1016 raeburn 7375: if ($datakey ne '') {
1.1013 raeburn 7376: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 7377: if ($udom eq '' || $uname eq '') {
7378: $udom = $env{'user.domain'};
7379: $uname = $env{'user.name'};
7380: }
7381: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 7382: if (($uhome eq '') || ($uhome eq 'no_host')) {
7383: $result = 'error: no_host';
7384: } else {
7385: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
7386: $storehash->{'host'} = $perlvar{'lonHostID'};
7387:
7388: my $namevalue='';
7389: foreach my $key (keys(%{$storehash})) {
7390: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
7391: }
7392: $namevalue=~s/\&$//;
1.1105 raeburn 7393: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
7394: $namevalue,$uhome);
1.1013 raeburn 7395: }
7396: } else {
7397: $result = 'error: data to store was not a hash reference';
7398: }
7399: } else {
7400: $result= 'error: invalid requestkey';
7401: }
7402: return $result;
7403: }
7404:
1.21 www 7405: # ---------------------------------------------------------- Assign Custom Role
7406:
7407: sub assigncustomrole {
1.957 raeburn 7408: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7409: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 7410: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 7411: }
7412:
7413: # ----------------------------------------------------------------- Revoke Role
7414:
7415: sub revokerole {
1.957 raeburn 7416: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7417: my $now=time;
1.965 raeburn 7418: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 7419: }
7420:
7421: # ---------------------------------------------------------- Revoke Custom Role
7422:
7423: sub revokecustomrole {
1.957 raeburn 7424: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7425: my $now=time;
1.357 www 7426: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 7427: $deleteflag,$selfenroll,$context);
1.17 www 7428: }
7429:
1.533 banghart 7430: # ------------------------------------------------------------ Disk usage
1.535 albertel 7431: sub diskusage {
1.955 raeburn 7432: my ($udom,$uname,$directorypath,$getpropath)=@_;
7433: $directorypath =~ s/\/$//;
7434: my $listing=&reply('du2:'.&escape($directorypath).':'
7435: .&escape($getpropath).':'.&escape($uname).':'
7436: .&escape($udom),homeserver($uname,$udom));
7437: if ($listing eq 'unknown_cmd') {
7438: if ($getpropath) {
7439: $directorypath = &propath($udom,$uname).'/'.$directorypath;
7440: }
7441: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
7442: }
1.514 albertel 7443: return $listing;
1.512 banghart 7444: }
7445:
1.566 banghart 7446: sub is_locked {
1.1096 raeburn 7447: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 7448: my @check;
7449: my $is_locked;
1.1093 raeburn 7450: push (@check,$file_name);
1.613 albertel 7451: my %locked = &get('file_permissions',\@check,
1.620 albertel 7452: $env{'user.domain'},$env{'user.name'});
1.615 albertel 7453: my ($tmp)=keys(%locked);
7454: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 7455:
1.566 banghart 7456: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 7457: $is_locked = 'false';
7458: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 7459: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 7460: $is_locked = 'true';
1.1096 raeburn 7461: if (ref($which) eq 'ARRAY') {
7462: push(@{$which},$entry);
7463: } else {
7464: last;
7465: }
1.745 raeburn 7466: }
7467: }
1.566 banghart 7468: } else {
7469: $is_locked = 'false';
7470: }
1.1093 raeburn 7471: return $is_locked;
1.566 banghart 7472: }
7473:
1.759 albertel 7474: sub declutter_portfile {
7475: my ($file) = @_;
1.833 albertel 7476: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 7477: return $file;
7478: }
7479:
1.559 banghart 7480: # ------------------------------------------------------------- Mark as Read Only
7481:
7482: sub mark_as_readonly {
7483: my ($domain,$user,$files,$what) = @_;
1.613 albertel 7484: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 7485: my ($tmp)=keys(%current_permissions);
7486: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 7487: foreach my $file (@{$files}) {
1.759 albertel 7488: $file = &declutter_portfile($file);
1.561 banghart 7489: push(@{$current_permissions{$file}},$what);
1.559 banghart 7490: }
1.613 albertel 7491: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7492: return;
7493: }
7494:
1.572 banghart 7495: # ------------------------------------------------------------Save Selected Files
7496:
7497: sub save_selected_files {
7498: my ($user, $path, @files) = @_;
7499: my $filename = $user."savedfiles";
1.573 banghart 7500: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 7501: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 7502: foreach my $file (@files) {
1.620 albertel 7503: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 7504: }
7505: foreach my $file (@other_files) {
1.574 banghart 7506: print (OUT $file."\n");
1.572 banghart 7507: }
1.574 banghart 7508: close (OUT);
1.572 banghart 7509: return 'ok';
7510: }
7511:
1.574 banghart 7512: sub clear_selected_files {
7513: my ($user) = @_;
7514: my $filename = $user."savedfiles";
1.1117 foxr 7515: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 7516: print (OUT undef);
7517: close (OUT);
7518: return ("ok");
7519: }
7520:
1.572 banghart 7521: sub files_in_path {
7522: my ($user, $path) = @_;
7523: my $filename = $user."savedfiles";
7524: my %return_files;
1.1117 foxr 7525: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 7526: while (my $line_in = <IN>) {
1.574 banghart 7527: chomp ($line_in);
7528: my @paths_and_file = split (m!/!, $line_in);
7529: my $file_part = pop (@paths_and_file);
7530: my $path_part = join ('/', @paths_and_file);
1.573 banghart 7531: $path_part.='/';
7532: my $path_and_file = $path_part.$file_part;
7533: if ($path_part eq $path) {
7534: $return_files{$file_part}= 'selected';
7535: }
7536: }
1.574 banghart 7537: close (IN);
7538: return (\%return_files);
1.572 banghart 7539: }
7540:
7541: # called in portfolio select mode, to show files selected NOT in current directory
7542: sub files_not_in_path {
7543: my ($user, $path) = @_;
7544: my $filename = $user."savedfiles";
7545: my @return_files;
7546: my $path_part;
1.1117 foxr 7547: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 7548: while (my $line = <IN>) {
1.572 banghart 7549: #ok, I know it's clunky, but I want it to work
1.800 albertel 7550: my @paths_and_file = split(m|/|, $line);
7551: my $file_part = pop(@paths_and_file);
7552: chomp($file_part);
7553: my $path_part = join('/', @paths_and_file);
1.572 banghart 7554: $path_part .= '/';
7555: my $path_and_file = $path_part.$file_part;
7556: if ($path_part ne $path) {
1.800 albertel 7557: push(@return_files, ($path_and_file));
1.572 banghart 7558: }
7559: }
1.800 albertel 7560: close(OUT);
1.574 banghart 7561: return (@return_files);
1.572 banghart 7562: }
7563:
1.745 raeburn 7564: #----------------------------------------------Get portfolio file permissions
1.629 banghart 7565:
1.745 raeburn 7566: sub get_portfile_permissions {
7567: my ($domain,$user) = @_;
1.613 albertel 7568: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 7569: my ($tmp)=keys(%current_permissions);
7570: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7571: return \%current_permissions;
7572: }
7573:
7574: #---------------------------------------------Get portfolio file access controls
7575:
1.749 raeburn 7576: sub get_access_controls {
1.745 raeburn 7577: my ($current_permissions,$group,$file) = @_;
1.769 albertel 7578: my %access;
7579: my $real_file = $file;
7580: $file =~ s/\.meta$//;
1.745 raeburn 7581: if (defined($file)) {
1.749 raeburn 7582: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
7583: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 7584: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 7585: }
7586: }
1.745 raeburn 7587: } else {
1.749 raeburn 7588: foreach my $key (keys(%{$current_permissions})) {
7589: if ($key =~ /\0accesscontrol$/) {
7590: if (defined($group)) {
7591: if ($key !~ m-^\Q$group\E/-) {
7592: next;
7593: }
7594: }
7595: my ($fullpath) = split(/\0/,$key);
7596: if (ref($$current_permissions{$key}) eq 'HASH') {
7597: foreach my $control (keys(%{$$current_permissions{$key}})) {
7598: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
7599: }
7600: }
7601: }
7602: }
7603: }
7604: return %access;
7605: }
7606:
7607: sub modify_access_controls {
7608: my ($file_name,$changes,$domain,$user)=@_;
7609: my ($outcome,$deloutcome);
7610: my %store_permissions;
7611: my %new_values;
7612: my %new_control;
7613: my %translation;
7614: my @deletions = ();
7615: my $now = time;
7616: if (exists($$changes{'activate'})) {
7617: if (ref($$changes{'activate'}) eq 'HASH') {
7618: my @newitems = sort(keys(%{$$changes{'activate'}}));
7619: my $numnew = scalar(@newitems);
7620: for (my $i=0; $i<$numnew; $i++) {
7621: my $newkey = $newitems[$i];
7622: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 7623: if ($newkey =~ /^\d+:/) {
7624: $newkey =~ s/^(\d+)/$newid/;
7625: $translation{$1} = $newid;
7626: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
7627: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
7628: $translation{$1} = $newid;
7629: }
1.749 raeburn 7630: $new_values{$file_name."\0".$newkey} =
7631: $$changes{'activate'}{$newitems[$i]};
7632: $new_control{$newkey} = $now;
7633: }
7634: }
7635: }
7636: my %todelete;
7637: my %changed_items;
7638: foreach my $action ('delete','update') {
7639: if (exists($$changes{$action})) {
7640: if (ref($$changes{$action}) eq 'HASH') {
7641: foreach my $key (keys(%{$$changes{$action}})) {
7642: my ($itemnum) = ($key =~ /^([^:]+):/);
7643: if ($action eq 'delete') {
7644: $todelete{$itemnum} = 1;
7645: } else {
7646: $changed_items{$itemnum} = $key;
7647: }
7648: }
1.745 raeburn 7649: }
7650: }
1.749 raeburn 7651: }
7652: # get lock on access controls for file.
7653: my $lockhash = {
7654: $file_name."\0".'locked_access_records' => $env{'user.name'}.
7655: ':'.$env{'user.domain'},
7656: };
7657: my $tries = 0;
7658: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
7659:
7660: while (($gotlock ne 'ok') && $tries <3) {
7661: $tries ++;
7662: sleep 1;
7663: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
7664: }
7665: if ($gotlock eq 'ok') {
7666: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
7667: my ($tmp)=keys(%curr_permissions);
7668: if ($tmp=~/^error:/) { undef(%curr_permissions); }
7669: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
7670: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
7671: if (ref($curr_controls) eq 'HASH') {
7672: foreach my $control_item (keys(%{$curr_controls})) {
7673: my ($itemnum) = ($control_item =~ /^([^:]+):/);
7674: if (defined($todelete{$itemnum})) {
7675: push(@deletions,$file_name."\0".$control_item);
7676: } else {
7677: if (defined($changed_items{$itemnum})) {
7678: $new_control{$changed_items{$itemnum}} = $now;
7679: push(@deletions,$file_name."\0".$control_item);
7680: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
7681: } else {
7682: $new_control{$control_item} = $$curr_controls{$control_item};
7683: }
7684: }
1.745 raeburn 7685: }
7686: }
7687: }
1.970 raeburn 7688: my ($group);
7689: if (&is_course($domain,$user)) {
7690: ($group,my $file) = split(/\//,$file_name,2);
7691: }
1.749 raeburn 7692: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
7693: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
7694: $outcome = &put('file_permissions',\%new_values,$domain,$user);
7695: # remove lock
7696: my @del_lock = ($file_name."\0".'locked_access_records');
7697: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 7698: my $sqlresult =
1.970 raeburn 7699: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 7700: $group);
1.749 raeburn 7701: } else {
7702: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 7703: }
1.749 raeburn 7704: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 7705: }
7706:
1.827 raeburn 7707: sub make_public_indefinitely {
7708: my ($requrl) = @_;
7709: my $now = time;
7710: my $action = 'activate';
7711: my $aclnum = 0;
7712: if (&is_portfolio_url($requrl)) {
7713: my (undef,$udom,$unum,$file_name,$group) =
7714: &parse_portfolio_url($requrl);
7715: my $current_perms = &get_portfile_permissions($udom,$unum);
7716: my %access_controls = &get_access_controls($current_perms,
7717: $group,$file_name);
7718: foreach my $key (keys(%{$access_controls{$file_name}})) {
7719: my ($num,$scope,$end,$start) =
7720: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
7721: if ($scope eq 'public') {
7722: if ($start <= $now && $end == 0) {
7723: $action = 'none';
7724: } else {
7725: $action = 'update';
7726: $aclnum = $num;
7727: }
7728: last;
7729: }
7730: }
7731: if ($action eq 'none') {
7732: return 'ok';
7733: } else {
7734: my %changes;
7735: my $newend = 0;
7736: my $newstart = $now;
7737: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
7738: $changes{$action}{$newkey} = {
7739: type => 'public',
7740: time => {
7741: start => $newstart,
7742: end => $newend,
7743: },
7744: };
7745: my ($outcome,$deloutcome,$new_values,$translation) =
7746: &modify_access_controls($file_name,\%changes,$udom,$unum);
7747: return $outcome;
7748: }
7749: } else {
7750: return 'invalid';
7751: }
7752: }
7753:
1.745 raeburn 7754: #------------------------------------------------------Get Marked as Read Only
7755:
7756: sub get_marked_as_readonly {
7757: my ($domain,$user,$what,$group) = @_;
7758: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 7759: my @readonly_files;
1.629 banghart 7760: my $cmp1=$what;
7761: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 7762: while (my ($file_name,$value) = each(%{$current_permissions})) {
7763: if (defined($group)) {
7764: if ($file_name !~ m-^\Q$group\E/-) {
7765: next;
7766: }
7767: }
1.561 banghart 7768: if (ref($value) eq "ARRAY"){
7769: foreach my $stored_what (@{$value}) {
1.629 banghart 7770: my $cmp2=$stored_what;
1.759 albertel 7771: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 7772: $cmp2=join('',@{$stored_what});
1.745 raeburn 7773: }
1.629 banghart 7774: if ($cmp1 eq $cmp2) {
1.561 banghart 7775: push(@readonly_files, $file_name);
1.745 raeburn 7776: last;
1.563 banghart 7777: } elsif (!defined($what)) {
7778: push(@readonly_files, $file_name);
1.745 raeburn 7779: last;
1.561 banghart 7780: }
7781: }
1.745 raeburn 7782: }
1.561 banghart 7783: }
7784: return @readonly_files;
7785: }
1.577 banghart 7786: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 7787:
1.577 banghart 7788: sub get_marked_as_readonly_hash {
1.745 raeburn 7789: my ($current_permissions,$group,$what) = @_;
1.577 banghart 7790: my %readonly_files;
1.745 raeburn 7791: while (my ($file_name,$value) = each(%{$current_permissions})) {
7792: if (defined($group)) {
7793: if ($file_name !~ m-^\Q$group\E/-) {
7794: next;
7795: }
7796: }
1.577 banghart 7797: if (ref($value) eq "ARRAY"){
7798: foreach my $stored_what (@{$value}) {
1.745 raeburn 7799: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 7800: foreach my $lock_descriptor(@{$stored_what}) {
7801: if ($lock_descriptor eq 'graded') {
7802: $readonly_files{$file_name} = 'graded';
7803: } elsif ($lock_descriptor eq 'handback') {
7804: $readonly_files{$file_name} = 'handback';
7805: } else {
7806: if (!exists($readonly_files{$file_name})) {
7807: $readonly_files{$file_name} = 'locked';
7808: }
7809: }
1.745 raeburn 7810: }
1.750 banghart 7811: }
1.577 banghart 7812: }
7813: }
7814: }
7815: return %readonly_files;
7816: }
1.559 banghart 7817: # ------------------------------------------------------------ Unmark as Read Only
7818:
7819: sub unmark_as_readonly {
1.629 banghart 7820: # unmarks $file_name (if $file_name is defined), or all files locked by $what
7821: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 7822: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 7823: $file_name = &declutter_portfile($file_name);
1.634 albertel 7824: my $symb_crs = $what;
7825: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 7826: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 7827: my ($tmp)=keys(%current_permissions);
7828: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7829: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 7830: foreach my $file (@readonly_files) {
1.759 albertel 7831: my $clean_file = &declutter_portfile($file);
7832: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 7833: my $current_locks = $current_permissions{$file};
1.563 banghart 7834: my @new_locks;
7835: my @del_keys;
7836: if (ref($current_locks) eq "ARRAY"){
7837: foreach my $locker (@{$current_locks}) {
1.632 albertel 7838: my $compare=$locker;
1.749 raeburn 7839: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 7840: $compare=join('',@{$locker});
1.746 raeburn 7841: if ($compare ne $symb_crs) {
7842: push(@new_locks, $locker);
7843: }
1.563 banghart 7844: }
7845: }
1.650 albertel 7846: if (scalar(@new_locks) > 0) {
1.563 banghart 7847: $current_permissions{$file} = \@new_locks;
7848: } else {
7849: push(@del_keys, $file);
1.613 albertel 7850: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 7851: delete($current_permissions{$file});
1.563 banghart 7852: }
7853: }
1.561 banghart 7854: }
1.613 albertel 7855: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7856: return;
7857: }
1.512 banghart 7858:
1.17 www 7859: # ------------------------------------------------------------ Directory lister
7860:
7861: sub dirlist {
1.955 raeburn 7862: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 7863: $uri=~s/^\///;
7864: $uri=~s/\/$//;
1.253 stredwic 7865: my ($udom, $uname);
1.955 raeburn 7866: if ($getuserdir) {
1.253 stredwic 7867: $udom = $userdomain;
7868: $uname = $username;
1.955 raeburn 7869: } else {
7870: (undef,$udom,$uname)=split(/\//,$uri);
7871: if(defined($userdomain)) {
7872: $udom = $userdomain;
7873: }
7874: if(defined($username)) {
7875: $uname = $username;
7876: }
1.253 stredwic 7877: }
1.955 raeburn 7878: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 7879:
1.955 raeburn 7880: $dirRoot = $perlvar{'lonDocRoot'};
7881: if (defined($getpropath)) {
7882: $dirRoot = &propath($udom,$uname);
1.253 stredwic 7883: $dirRoot =~ s/\/$//;
1.955 raeburn 7884: } elsif (defined($getuserdir)) {
7885: my $subdir=$uname.'__';
7886: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
7887: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
7888: ."/$udom/$subdir/$uname";
7889: } elsif (defined($alternateRoot)) {
7890: $dirRoot = $alternateRoot;
1.751 banghart 7891: }
1.253 stredwic 7892:
7893: if($udom) {
7894: if($uname) {
1.955 raeburn 7895: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 7896: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 7897: .':'.&escape($uname).':'.&escape($udom),
7898: &homeserver($uname,$udom));
7899: if ($listing eq 'unknown_cmd') {
7900: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
7901: &homeserver($uname,$udom));
7902: } else {
7903: @listing_results = map { &unescape($_); } split(/:/,$listing);
7904: }
1.605 matthew 7905: if ($listing eq 'unknown_cmd') {
1.800 albertel 7906: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
7907: &homeserver($uname,$udom));
1.605 matthew 7908: @listing_results = split(/:/,$listing);
7909: } else {
7910: @listing_results = map { &unescape($_); } split(/:/,$listing);
7911: }
7912: return @listing_results;
1.955 raeburn 7913: } elsif(!$alternateRoot) {
1.800 albertel 7914: my %allusers;
1.841 albertel 7915: my %servers = &get_servers($udom,'library');
1.955 raeburn 7916: foreach my $tryserver (keys(%servers)) {
7917: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
7918: &escape($udom),$tryserver);
7919: if ($listing eq 'unknown_cmd') {
7920: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
7921: $udom, $tryserver);
7922: } else {
7923: @listing_results = map { &unescape($_); } split(/:/,$listing);
7924: }
1.841 albertel 7925: if ($listing eq 'unknown_cmd') {
7926: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
7927: $udom, $tryserver);
7928: @listing_results = split(/:/,$listing);
7929: } else {
7930: @listing_results =
7931: map { &unescape($_); } split(/:/,$listing);
7932: }
7933: if ($listing_results[0] ne 'no_such_dir' &&
7934: $listing_results[0] ne 'empty' &&
7935: $listing_results[0] ne 'con_lost') {
7936: foreach my $line (@listing_results) {
7937: my ($entry) = split(/&/,$line,2);
7938: $allusers{$entry} = 1;
7939: }
7940: }
1.253 stredwic 7941: }
7942: my $alluserstr='';
1.800 albertel 7943: foreach my $user (sort(keys(%allusers))) {
7944: $alluserstr.=$user.'&user:';
1.253 stredwic 7945: }
7946: $alluserstr=~s/:$//;
7947: return split(/:/,$alluserstr);
7948: } else {
1.800 albertel 7949: return ('missing user name');
1.253 stredwic 7950: }
1.955 raeburn 7951: } elsif(!defined($getpropath)) {
1.841 albertel 7952: my @all_domains = sort(&all_domains());
1.955 raeburn 7953: foreach my $domain (@all_domains) {
7954: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
7955: }
7956: return @all_domains;
7957: } else {
1.800 albertel 7958: return ('missing domain');
1.275 stredwic 7959: }
7960: }
7961:
7962: # --------------------------------------------- GetFileTimestamp
7963: # This function utilizes dirlist and returns the date stamp for
7964: # when it was last modified. It will also return an error of -1
7965: # if an error occurs
7966:
7967: sub GetFileTimestamp {
1.955 raeburn 7968: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 7969: $studentDomain = &LONCAPA::clean_domain($studentDomain);
7970: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 7971: my ($fileStat) =
7972: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
7973: undef,$getuserdir);
1.275 stredwic 7974: my @stats = split('&', $fileStat);
7975: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 7976: # @stats contains first the filename, then the stat output
7977: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 7978: } else {
7979: return -1;
1.253 stredwic 7980: }
1.26 www 7981: }
7982:
1.712 albertel 7983: sub stat_file {
7984: my ($uri) = @_;
1.787 albertel 7985: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 7986:
1.955 raeburn 7987: my ($udom,$uname,$file);
1.712 albertel 7988: if ($uri =~ m-^/(uploaded|editupload)/-) {
7989: ($udom,$uname,$file) =
1.811 albertel 7990: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 7991: $file = 'userfiles/'.$file;
7992: }
7993: if ($uri =~ m-^/res/-) {
7994: ($udom,$uname) =
1.807 albertel 7995: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 7996: $file = $uri;
7997: }
7998:
7999: if (!$udom || !$uname || !$file) {
8000: # unable to handle the uri
8001: return ();
8002: }
1.956 raeburn 8003: my $getpropath;
8004: if ($file =~ /^userfiles\//) {
8005: $getpropath = 1;
8006: }
1.955 raeburn 8007: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 8008: my @stats = split('&', $result);
1.721 banghart 8009:
1.712 albertel 8010: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
8011: shift(@stats); #filename is first
8012: return @stats;
8013: }
8014: return ();
8015: }
8016:
1.26 www 8017: # -------------------------------------------------------- Value of a Condition
8018:
1.713 albertel 8019: # gets the value of a specific preevaluated condition
8020: # stored in the string $env{user.state.<cid>}
8021: # or looks up a condition reference in the bighash and if if hasn't
8022: # already been evaluated recurses into docondval to get the value of
8023: # the condition, then memoizing it to
8024: # $env{user.state.<cid>.<condition>}
1.40 www 8025: sub directcondval {
8026: my $number=shift;
1.620 albertel 8027: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 8028: &Apache::lonuserstate::evalstate();
8029: }
1.713 albertel 8030: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
8031: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
8032: } elsif ($number =~ /^_/) {
8033: my $sub_condition;
8034: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8035: &GDBM_READER(),0640)) {
8036: $sub_condition=$bighash{'conditions'.$number};
8037: untie(%bighash);
8038: }
8039: my $value = &docondval($sub_condition);
1.949 raeburn 8040: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 8041: return $value;
8042: }
1.620 albertel 8043: if ($env{'user.state.'.$env{'request.course.id'}}) {
8044: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 8045: } else {
8046: return 2;
8047: }
8048: }
8049:
1.713 albertel 8050: # get the collection of conditions for this resource
1.26 www 8051: sub condval {
8052: my $condidx=shift;
1.54 www 8053: my $allpathcond='';
1.713 albertel 8054: foreach my $cond (split(/\|/,$condidx)) {
8055: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
8056: $allpathcond.=
8057: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
8058: }
1.191 harris41 8059: }
1.54 www 8060: $allpathcond=~s/\|$//;
1.713 albertel 8061: return &docondval($allpathcond);
8062: }
8063:
8064: #evaluates an expression of conditions
8065: sub docondval {
8066: my ($allpathcond) = @_;
8067: my $result=0;
8068: if ($env{'request.course.id'}
8069: && defined($allpathcond)) {
8070: my $operand='|';
8071: my @stack;
8072: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
8073: if ($chunk eq '(') {
8074: push @stack,($operand,$result);
8075: } elsif ($chunk eq ')') {
8076: my $before=pop @stack;
8077: if (pop @stack eq '&') {
8078: $result=$result>$before?$before:$result;
8079: } else {
8080: $result=$result>$before?$result:$before;
8081: }
8082: } elsif (($chunk eq '&') || ($chunk eq '|')) {
8083: $operand=$chunk;
8084: } else {
8085: my $new=directcondval($chunk);
8086: if ($operand eq '&') {
8087: $result=$result>$new?$new:$result;
8088: } else {
8089: $result=$result>$new?$result:$new;
8090: }
8091: }
8092: }
1.26 www 8093: }
8094: return $result;
1.421 albertel 8095: }
8096:
8097: # ---------------------------------------------------- Devalidate courseresdata
8098:
8099: sub devalidatecourseresdata {
8100: my ($coursenum,$coursedomain)=@_;
8101: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 8102: &devalidate_cache_new('courseres',$hashid);
1.28 www 8103: }
8104:
1.763 www 8105:
1.200 www 8106: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 8107: #
8108: # Parameters:
8109: # $coursenum - Number of the course.
8110: # $coursedomain - Domain at which the course was created.
8111: # Returns:
8112: # A hash of the course parameters along (I think) with timestamps
8113: # and version info.
1.877 foxr 8114:
1.624 albertel 8115: sub get_courseresdata {
8116: my ($coursenum,$coursedomain)=@_;
1.200 www 8117: my $coursehom=&homeserver($coursenum,$coursedomain);
8118: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 8119: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 8120: my %dumpreply;
1.417 albertel 8121: unless (defined($cached)) {
1.624 albertel 8122: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 8123: $result=\%dumpreply;
1.251 albertel 8124: my ($tmp) = keys(%dumpreply);
8125: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 8126: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 8127: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
8128: return $tmp;
1.416 albertel 8129: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 8130: $result=undef;
1.599 albertel 8131: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 8132: }
8133: }
1.624 albertel 8134: return $result;
8135: }
8136:
1.633 albertel 8137: sub devalidateuserresdata {
8138: my ($uname,$udom)=@_;
8139: my $hashid="$udom:$uname";
8140: &devalidate_cache_new('userres',$hashid);
8141: }
8142:
1.624 albertel 8143: sub get_userresdata {
8144: my ($uname,$udom)=@_;
8145: #most student don\'t have any data set, check if there is some data
8146: if (&EXT_cache_status($udom,$uname)) { return undef; }
8147:
8148: my $hashid="$udom:$uname";
8149: my ($result,$cached)=&is_cached_new('userres',$hashid);
8150: if (!defined($cached)) {
8151: my %resourcedata=&dump('resourcedata',$udom,$uname);
8152: $result=\%resourcedata;
8153: &do_cache_new('userres',$hashid,$result,600);
8154: }
8155: my ($tmp)=keys(%$result);
8156: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
8157: return $result;
8158: }
8159: #error 2 occurs when the .db doesn't exist
8160: if ($tmp!~/error: 2 /) {
1.672 albertel 8161: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 8162: " Trying to get resource data for ".
8163: $uname." at ".$udom.": ".
8164: $tmp."</font>");
8165: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 8166: #&EXT_cache_set($udom,$uname);
8167: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 8168: undef($tmp); # not really an error so don't send it back
1.624 albertel 8169: }
8170: return $tmp;
8171: }
1.879 foxr 8172: #----------------------------------------------- resdata - return resource data
8173: # Purpose:
8174: # Return resource data for either users or for a course.
8175: # Parameters:
8176: # $name - Course/user name.
8177: # $domain - Name of the domain the user/course is registered on.
8178: # $type - Type of thing $name is (must be 'course' or 'user'
8179: # @which - Array of names of resources desired.
8180: # Returns:
8181: # The value of the first reasource in @which that is found in the
8182: # resource hash.
8183: # Exceptional Conditions:
8184: # If the $type passed in is not valid (not the string 'course' or
8185: # 'user', an undefined reference is returned.
8186: # If none of the resources are found, an undef is returned
1.624 albertel 8187: sub resdata {
8188: my ($name,$domain,$type,@which)=@_;
8189: my $result;
8190: if ($type eq 'course') {
8191: $result=&get_courseresdata($name,$domain);
8192: } elsif ($type eq 'user') {
8193: $result=&get_userresdata($name,$domain);
8194: }
8195: if (!ref($result)) { return $result; }
1.251 albertel 8196: foreach my $item (@which) {
1.927 albertel 8197: if (defined($result->{$item->[0]})) {
8198: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 8199: }
1.250 albertel 8200: }
1.291 albertel 8201: return undef;
1.200 www 8202: }
8203:
1.379 matthew 8204: #
8205: # EXT resource caching routines
8206: #
8207:
8208: sub clear_EXT_cache_status {
1.383 albertel 8209: &delenv('cache.EXT.');
1.379 matthew 8210: }
8211:
8212: sub EXT_cache_status {
8213: my ($target_domain,$target_user) = @_;
1.383 albertel 8214: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 8215: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 8216: # We know already the user has no data
8217: return 1;
8218: } else {
8219: return 0;
8220: }
8221: }
8222:
8223: sub EXT_cache_set {
8224: my ($target_domain,$target_user) = @_;
1.383 albertel 8225: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 8226: #&appenv({$cachename => time});
1.379 matthew 8227: }
8228:
1.28 www 8229: # --------------------------------------------------------- Value of a Variable
1.58 www 8230: sub EXT {
1.715 albertel 8231:
1.395 albertel 8232: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 8233: unless ($varname) { return ''; }
1.218 albertel 8234: #get real user name/domain, courseid and symb
8235: my $courseid;
1.359 albertel 8236: my $publicuser;
1.427 www 8237: if ($symbparm) {
8238: $symbparm=&get_symb_from_alias($symbparm);
8239: }
1.218 albertel 8240: if (!($uname && $udom)) {
1.790 albertel 8241: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 8242: if (!$symbparm) { $symbparm=$cursymb; }
8243: } else {
1.620 albertel 8244: $courseid=$env{'request.course.id'};
1.218 albertel 8245: }
1.48 www 8246: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
8247: my $rest;
1.320 albertel 8248: if (defined($therest[0])) {
1.48 www 8249: $rest=join('.',@therest);
8250: } else {
8251: $rest='';
8252: }
1.320 albertel 8253:
1.57 www 8254: my $qualifierrest=$qualifier;
8255: if ($rest) { $qualifierrest.='.'.$rest; }
8256: my $spacequalifierrest=$space;
8257: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 8258: if ($realm eq 'user') {
1.48 www 8259: # --------------------------------------------------------------- user.resource
8260: if ($space eq 'resource') {
1.651 albertel 8261: if ( (defined($Apache::lonhomework::parsing_a_problem)
8262: || defined($Apache::lonhomework::parsing_a_task))
8263: &&
1.744 albertel 8264: ($symbparm eq &symbread()) ) {
8265: # if we are in the middle of processing the resource the
8266: # get the value we are planning on committing
8267: if (defined($Apache::lonhomework::results{$qualifierrest})) {
8268: return $Apache::lonhomework::results{$qualifierrest};
8269: } else {
8270: return $Apache::lonhomework::history{$qualifierrest};
8271: }
1.335 albertel 8272: } else {
1.359 albertel 8273: my %restored;
1.620 albertel 8274: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 8275: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
8276: } else {
8277: %restored=&restore($symbparm,$courseid,$udom,$uname);
8278: }
1.335 albertel 8279: return $restored{$qualifierrest};
8280: }
1.48 www 8281: # ----------------------------------------------------------------- user.access
8282: } elsif ($space eq 'access') {
1.218 albertel 8283: # FIXME - not supporting calls for a specific user
1.48 www 8284: return &allowed($qualifier,$rest);
8285: # ------------------------------------------ user.preferences, user.environment
8286: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 8287: if (($uname eq $env{'user.name'}) &&
8288: ($udom eq $env{'user.domain'})) {
8289: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 8290: } else {
1.359 albertel 8291: my %returnhash;
8292: if (!$publicuser) {
8293: %returnhash=&userenvironment($udom,$uname,
8294: $qualifierrest);
8295: }
1.218 albertel 8296: return $returnhash{$qualifierrest};
8297: }
1.48 www 8298: # ----------------------------------------------------------------- user.course
8299: } elsif ($space eq 'course') {
1.218 albertel 8300: # FIXME - not supporting calls for a specific user
1.620 albertel 8301: return $env{join('.',('request.course',$qualifier))};
1.48 www 8302: # ------------------------------------------------------------------- user.role
8303: } elsif ($space eq 'role') {
1.218 albertel 8304: # FIXME - not supporting calls for a specific user
1.620 albertel 8305: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 8306: if ($qualifier eq 'value') {
8307: return $role;
8308: } elsif ($qualifier eq 'extent') {
8309: return $where;
8310: }
8311: # ----------------------------------------------------------------- user.domain
8312: } elsif ($space eq 'domain') {
1.218 albertel 8313: return $udom;
1.48 www 8314: # ------------------------------------------------------------------- user.name
8315: } elsif ($space eq 'name') {
1.218 albertel 8316: return $uname;
1.48 www 8317: # ---------------------------------------------------- Any other user namespace
1.29 www 8318: } else {
1.359 albertel 8319: my %reply;
8320: if (!$publicuser) {
8321: %reply=&get($space,[$qualifierrest],$udom,$uname);
8322: }
8323: return $reply{$qualifierrest};
1.48 www 8324: }
1.236 www 8325: } elsif ($realm eq 'query') {
8326: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 8327: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
8328: [$spacequalifierrest]);
1.620 albertel 8329: return $env{'form.'.$spacequalifierrest};
1.236 www 8330: } elsif ($realm eq 'request') {
1.48 www 8331: # ------------------------------------------------------------- request.browser
8332: if ($space eq 'browser') {
1.430 www 8333: if ($qualifier eq 'textremote') {
1.676 albertel 8334: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 8335: return 1;
8336: } else {
8337: return 0;
8338: }
8339: } else {
1.620 albertel 8340: return $env{'browser.'.$qualifier};
1.430 www 8341: }
1.57 www 8342: # ------------------------------------------------------------ request.filename
8343: } else {
1.620 albertel 8344: return $env{'request.'.$spacequalifierrest};
1.29 www 8345: }
1.28 www 8346: } elsif ($realm eq 'course') {
1.48 www 8347: # ---------------------------------------------------------- course.description
1.620 albertel 8348: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 8349: } elsif ($realm eq 'resource') {
1.165 www 8350:
1.620 albertel 8351: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 8352: if (!$symbparm) { $symbparm=&symbread(); }
8353: }
1.693 albertel 8354:
8355: if ($space eq 'title') {
8356: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
8357: return &gettitle($symbparm);
8358: }
8359:
8360: if ($space eq 'map') {
8361: my ($map) = &decode_symb($symbparm);
8362: return &symbread($map);
8363: }
1.905 albertel 8364: if ($space eq 'filename') {
8365: if ($symbparm) {
8366: return &clutter((&decode_symb($symbparm))[2]);
8367: }
8368: return &hreflocation('',$env{'request.filename'});
8369: }
1.693 albertel 8370:
8371: my ($section, $group, @groups);
1.593 albertel 8372: my ($courselevelm,$courselevel);
1.539 albertel 8373: if ($symbparm && defined($courseid) &&
1.620 albertel 8374: $courseid eq $env{'request.course.id'}) {
1.165 www 8375:
1.218 albertel 8376: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 8377:
1.60 www 8378: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 8379: my $symbp=$symbparm;
1.735 albertel 8380: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 8381:
8382: my $symbparm=$symbp.'.'.$spacequalifierrest;
8383: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
8384:
1.620 albertel 8385: if (($env{'user.name'} eq $uname) &&
8386: ($env{'user.domain'} eq $udom)) {
8387: $section=$env{'request.course.sec'};
1.733 raeburn 8388: @groups = split(/:/,$env{'request.course.groups'});
8389: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 8390: } else {
1.539 albertel 8391: if (! defined($usection)) {
1.551 albertel 8392: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 8393: } else {
8394: $section = $usection;
8395: }
1.733 raeburn 8396: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 8397: }
8398:
8399: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
8400: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
8401: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
8402:
1.593 albertel 8403: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 8404: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 8405: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 8406:
1.60 www 8407: # ----------------------------------------------------------- first, check user
1.624 albertel 8408:
8409: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 8410: ([$courselevelr,'resource'],
8411: [$courselevelm,'map' ],
8412: [$courselevel, 'course' ]));
1.931 albertel 8413: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 8414:
1.594 albertel 8415: # ------------------------------------------------ second, check some of course
1.684 raeburn 8416: my $coursereply;
1.691 raeburn 8417: if (@groups > 0) {
8418: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
8419: $mapparm,$spacequalifierrest);
1.927 albertel 8420: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 8421: }
1.96 www 8422:
1.684 raeburn 8423: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 8424: $env{'course.'.$courseid.'.domain'},
8425: 'course',
8426: ([$seclevelr, 'resource'],
8427: [$seclevelm, 'map' ],
8428: [$seclevel, 'course' ],
8429: [$courselevelr,'resource']));
8430: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 8431:
1.60 www 8432: # ------------------------------------------------------ third, check map parms
1.218 albertel 8433: my %parmhash=();
8434: my $thisparm='';
8435: if (tie(%parmhash,'GDBM_File',
1.620 albertel 8436: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 8437: &GDBM_READER(),0640)) {
1.218 albertel 8438: $thisparm=$parmhash{$symbparm};
8439: untie(%parmhash);
8440: }
1.927 albertel 8441: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 8442: }
1.594 albertel 8443: # ------------------------------------------ fourth, look in resource metadata
1.71 www 8444:
1.218 albertel 8445: $spacequalifierrest=~s/\./\_/;
1.282 albertel 8446: my $filename;
8447: if (!$symbparm) { $symbparm=&symbread(); }
8448: if ($symbparm) {
1.409 www 8449: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 8450: } else {
1.620 albertel 8451: $filename=$env{'request.filename'};
1.282 albertel 8452: }
8453: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 8454: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 8455: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 8456: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 8457:
1.927 albertel 8458: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 8459: if ($symbparm && defined($courseid) &&
1.620 albertel 8460: $courseid eq $env{'request.course.id'}) {
1.624 albertel 8461: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
8462: $env{'course.'.$courseid.'.domain'},
8463: 'course',
1.927 albertel 8464: ([$courselevelm,'map' ],
8465: [$courselevel, 'course']));
8466: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 8467: }
1.145 www 8468: # ------------------------------------------------------------------ Cascade up
1.218 albertel 8469: unless ($space eq '0') {
1.336 albertel 8470: my @parts=split(/_/,$space);
8471: my $id=pop(@parts);
8472: my $part=join('_',@parts);
8473: if ($part eq '') { $part='0'; }
1.927 albertel 8474: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 8475: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 8476: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 8477: }
1.395 albertel 8478: if ($recurse) { return undef; }
8479: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 8480: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 8481: # ---------------------------------------------------- Any other user namespace
8482: } elsif ($realm eq 'environment') {
8483: # ----------------------------------------------------------------- environment
1.620 albertel 8484: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
8485: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 8486: } else {
1.770 albertel 8487: if ($uname eq 'anonymous' && $udom eq '') {
8488: return '';
8489: }
1.219 albertel 8490: my %returnhash=&userenvironment($udom,$uname,
8491: $spacequalifierrest);
8492: return $returnhash{$spacequalifierrest};
8493: }
1.28 www 8494: } elsif ($realm eq 'system') {
1.48 www 8495: # ----------------------------------------------------------------- system.time
8496: if ($space eq 'time') {
8497: return time;
8498: }
1.696 albertel 8499: } elsif ($realm eq 'server') {
8500: # ----------------------------------------------------------------- system.time
8501: if ($space eq 'name') {
8502: return $ENV{'SERVER_NAME'};
8503: }
1.28 www 8504: }
1.48 www 8505: return '';
1.61 www 8506: }
8507:
1.927 albertel 8508: sub get_reply {
8509: my ($reply_value) = @_;
1.940 raeburn 8510: if (ref($reply_value) eq 'ARRAY') {
8511: if (wantarray) {
8512: return @$reply_value;
8513: }
8514: return $reply_value->[0];
8515: } else {
8516: return $reply_value;
1.927 albertel 8517: }
8518: }
8519:
1.691 raeburn 8520: sub check_group_parms {
8521: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
8522: my @groupitems = ();
8523: my $resultitem;
1.927 albertel 8524: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 8525: foreach my $group (@{$groups}) {
8526: foreach my $level (@levels) {
1.927 albertel 8527: my $item = $courseid.'.['.$group.'].'.$level->[0];
8528: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 8529: }
8530: }
8531: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
8532: $env{'course.'.$courseid.'.domain'},
8533: 'course',@groupitems);
8534: return $coursereply;
8535: }
8536:
8537: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 8538: my ($courseid,@groups) = @_;
8539: @groups = sort(@groups);
1.691 raeburn 8540: return @groups;
8541: }
8542:
1.395 albertel 8543: sub packages_tab_default {
8544: my ($uri,$varname)=@_;
8545: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 8546:
8547: my (@extension,@specifics,$do_default);
8548: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 8549: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 8550: if ($pack_type eq 'default') {
8551: $do_default=1;
8552: } elsif ($pack_type eq 'extension') {
8553: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 8554: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 8555: # only look at packages defaults for packages that this id is
1.738 albertel 8556: push(@specifics,[$package,$pack_type,$pack_part]);
8557: }
8558: }
8559: # first look for a package that matches the requested part id
8560: foreach my $package (@specifics) {
8561: my (undef,$pack_type,$pack_part)=@{$package};
8562: next if ($pack_part ne $part);
8563: if (defined($packagetab{"$pack_type&$name&default"})) {
8564: return $packagetab{"$pack_type&$name&default"};
8565: }
8566: }
8567: # look for any possible matching non extension_ package
8568: foreach my $package (@specifics) {
8569: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 8570: if (defined($packagetab{"$pack_type&$name&default"})) {
8571: return $packagetab{"$pack_type&$name&default"};
8572: }
1.585 albertel 8573: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 8574: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
8575: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 8576: }
8577: }
1.738 albertel 8578: # look for any posible extension_ match
8579: foreach my $package (@extension) {
8580: my ($package,$pack_type)=@{$package};
8581: if (defined($packagetab{"$pack_type&$name&default"})) {
8582: return $packagetab{"$pack_type&$name&default"};
8583: }
8584: if (defined($packagetab{$package."&$name&default"})) {
8585: return $packagetab{$package."&$name&default"};
8586: }
8587: }
8588: # look for a global default setting
8589: if ($do_default && defined($packagetab{"default&$name&default"})) {
8590: return $packagetab{"default&$name&default"};
8591: }
1.395 albertel 8592: return undef;
8593: }
8594:
1.334 albertel 8595: sub add_prefix_and_part {
8596: my ($prefix,$part)=@_;
8597: my $keyroot;
8598: if (defined($prefix) && $prefix !~ /^__/) {
8599: # prefix that has a part already
8600: $keyroot=$prefix;
8601: } elsif (defined($prefix)) {
8602: # prefix that is missing a part
8603: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
8604: } else {
8605: # no prefix at all
8606: if (defined($part)) { $keyroot='_'.$part; }
8607: }
8608: return $keyroot;
8609: }
8610:
1.71 www 8611: # ---------------------------------------------------------------- Get metadata
8612:
1.599 albertel 8613: my %metaentry;
1.1070 www 8614: my %importedpartids;
1.71 www 8615: sub metadata {
1.176 www 8616: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 8617: $uri=&declutter($uri);
1.288 albertel 8618: # if it is a non metadata possible uri return quickly
1.529 albertel 8619: if (($uri eq '') ||
8620: (($uri =~ m|^/*adm/|) &&
1.698 albertel 8621: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.1108 raeburn 8622: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 8623: return undef;
8624: }
8625: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
8626: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 8627: return undef;
1.288 albertel 8628: }
1.73 www 8629: my $filename=$uri;
8630: $uri=~s/\.meta$//;
1.172 www 8631: #
8632: # Is the metadata already cached?
1.177 www 8633: # Look at timestamp of caching
1.172 www 8634: # Everything is cached by the main uri, libraries are never directly cached
8635: #
1.428 albertel 8636: if (!defined($liburi)) {
1.599 albertel 8637: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 8638: if (defined($cached)) { return $result->{':'.$what}; }
8639: }
8640: {
1.1069 www 8641: # Imported parts would go here
1.1070 www 8642: my %importedids=();
8643: my @origfileimportpartids=();
1.1069 www 8644: my $importedparts=0;
1.172 www 8645: #
8646: # Is this a recursive call for a library?
8647: #
1.599 albertel 8648: # if (! exists($metacache{$uri})) {
8649: # $metacache{$uri}={};
8650: # }
1.924 albertel 8651: my $cachetime = 60*60;
1.171 www 8652: if ($liburi) {
8653: $liburi=&declutter($liburi);
8654: $filename=$liburi;
1.401 bowersj2 8655: } else {
1.599 albertel 8656: &devalidate_cache_new('meta',$uri);
8657: undef(%metaentry);
1.401 bowersj2 8658: }
1.140 www 8659: my %metathesekeys=();
1.73 www 8660: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 8661: my $metastring;
1.924 albertel 8662: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 8663: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 8664: $metastring =
1.929 albertel 8665: &Apache::lonnet::ssi_body($which,
1.924 albertel 8666: ('grade_target' => 'meta'));
8667: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 8668: } elsif (($uri !~ m -^(editupload)/-) &&
8669: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 8670: my $file=&filelocation('',&clutter($filename));
1.599 albertel 8671: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 8672: $metastring=&getfile($file);
1.489 albertel 8673: }
1.208 albertel 8674: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 8675: my $token;
1.140 www 8676: undef %metathesekeys;
1.71 www 8677: while ($token=$parser->get_token) {
1.339 albertel 8678: if ($token->[0] eq 'S') {
8679: if (defined($token->[2]->{'package'})) {
1.172 www 8680: #
8681: # This is a package - get package info
8682: #
1.339 albertel 8683: my $package=$token->[2]->{'package'};
8684: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8685: if (defined($token->[2]->{'id'})) {
8686: $keyroot.='_'.$token->[2]->{'id'};
8687: }
1.599 albertel 8688: if ($metaentry{':packages'}) {
8689: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 8690: } else {
1.599 albertel 8691: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 8692: }
1.736 albertel 8693: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 8694: my $part=$keyroot;
8695: $part=~s/^\_//;
1.736 albertel 8696: if ($pack_entry=~/^\Q$package\E\&/ ||
8697: $pack_entry=~/^\Q$package\E_0\&/) {
8698: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 8699: # ignore package.tab specified default values
8700: # here &package_tab_default() will fetch those
8701: if ($subp eq 'default') { next; }
1.736 albertel 8702: my $value=$packagetab{$pack_entry};
1.432 albertel 8703: my $unikey;
8704: if ($pack =~ /_0$/) {
8705: $unikey='parameter_0_'.$name;
8706: $part=0;
8707: } else {
8708: $unikey='parameter'.$keyroot.'_'.$name;
8709: }
1.339 albertel 8710: if ($subp eq 'display') {
8711: $value.=' [Part: '.$part.']';
8712: }
1.599 albertel 8713: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 8714: $metathesekeys{$unikey}=1;
1.599 albertel 8715: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8716: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 8717: }
1.599 albertel 8718: if (defined($metaentry{':'.$unikey.'.default'})) {
8719: $metaentry{':'.$unikey}=
8720: $metaentry{':'.$unikey.'.default'};
1.356 albertel 8721: }
1.339 albertel 8722: }
8723: }
8724: } else {
1.172 www 8725: #
8726: # This is not a package - some other kind of start tag
1.339 albertel 8727: #
8728: my $entry=$token->[1];
1.1068 www 8729: my $unikey='';
1.175 www 8730:
1.339 albertel 8731: if ($entry eq 'import') {
1.175 www 8732: #
8733: # Importing a library here
1.339 albertel 8734: #
1.1067 www 8735: my $location=$parser->get_text('/import');
8736: my $dir=$filename;
8737: $dir=~s|[^/]*$||;
8738: $location=&filelocation($dir,$location);
1.1069 www 8739:
1.1068 www 8740: my $importmode=$token->[2]->{'importmode'};
8741: if ($importmode eq 'problem') {
1.1069 www 8742: # Import as problem/response
1.1068 www 8743: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8744: } elsif ($importmode eq 'part') {
8745: # Import as part(s)
1.1069 www 8746: $importedparts=1;
8747: # We need to get the original file and the imported file to get the part order correct
8748: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
8749: # Load and inspect original file
1.1070 www 8750: if ($#origfileimportpartids<0) {
8751: undef(%importedpartids);
8752: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
8753: my $origfile=&getfile($origfilelocation);
8754: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
8755: }
8756:
1.1069 www 8757: # Load and inspect imported file
8758: my $impfile=&getfile($location);
8759: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
8760: if ($#impfilepartids>=0) {
8761: # This problem had parts
1.1070 www 8762: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 8763: } else {
8764: # Importing by turning a single problem into a problem part
8765: # It gets the import-tags ID as part-ID
8766: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 8767: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 8768: }
1.1068 www 8769: } else {
8770: # Normal import
8771: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8772: if (defined($token->[2]->{'id'})) {
8773: $unikey.='_'.$token->[2]->{'id'};
8774: }
1.1067 www 8775: }
8776:
1.339 albertel 8777: if ($depthcount<20) {
1.736 albertel 8778: my $metadata =
8779: &metadata($uri,'keys', $location,$unikey,
8780: $depthcount+1);
8781: foreach my $meta (split(',',$metadata)) {
8782: $metaentry{':'.$meta}=$metaentry{':'.$meta};
8783: $metathesekeys{$meta}=1;
1.339 albertel 8784: }
1.1068 www 8785:
8786: }
1.1067 www 8787: } else {
8788: #
8789: # Not importing, some other kind of non-package, non-library start tag
8790: #
8791: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
8792: if (defined($token->[2]->{'id'})) {
8793: $unikey.='_'.$token->[2]->{'id'};
8794: }
1.339 albertel 8795: if (defined($token->[2]->{'name'})) {
8796: $unikey.='_'.$token->[2]->{'name'};
8797: }
8798: $metathesekeys{$unikey}=1;
1.736 albertel 8799: foreach my $param (@{$token->[3]}) {
8800: $metaentry{':'.$unikey.'.'.$param} =
8801: $token->[2]->{$param};
1.339 albertel 8802: }
8803: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 8804: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 8805: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
8806: # only ws inside the tag, and not in default, so use default
8807: # as value
1.599 albertel 8808: $metaentry{':'.$unikey}=$default;
1.908 albertel 8809: } elsif ( $internaltext =~ /\S/ ) {
8810: # something interesting inside the tag
8811: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 8812: } else {
1.908 albertel 8813: # no interesting values, don't set a default
1.339 albertel 8814: }
1.172 www 8815: # end of not-a-package not-a-library import
1.339 albertel 8816: }
1.172 www 8817: # end of not-a-package start tag
1.339 albertel 8818: }
1.172 www 8819: # the next is the end of "start tag"
1.339 albertel 8820: }
8821: }
1.483 albertel 8822: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 8823: $extension = lc($extension);
8824: if ($extension eq 'htm') { $extension='html'; }
8825:
1.737 albertel 8826: foreach my $key (keys(%packagetab)) {
1.483 albertel 8827: #no specific packages #how's our extension
8828: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 8829: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 8830: \%metathesekeys);
8831: }
1.883 albertel 8832:
8833: if (!exists($metaentry{':packages'})
8834: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 8835: foreach my $key (keys(%packagetab)) {
1.483 albertel 8836: #no specific packages well let's get default then
8837: if ($key!~/^default&/) { next; }
1.488 albertel 8838: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 8839: \%metathesekeys);
8840: }
8841: }
1.338 www 8842: # are there custom rights to evaluate
1.599 albertel 8843: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 8844:
1.338 www 8845: #
8846: # Importing a rights file here
1.339 albertel 8847: #
8848: unless ($depthcount) {
1.599 albertel 8849: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 8850: my $dir=$filename;
8851: $dir=~s|[^/]*$||;
8852: $location=&filelocation($dir,$location);
1.736 albertel 8853: my $rights_metadata =
8854: &metadata($uri,'keys',$location,'_rights',
8855: $depthcount+1);
8856: foreach my $rights (split(',',$rights_metadata)) {
8857: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
8858: $metathesekeys{$rights}=1;
1.339 albertel 8859: }
8860: }
8861: }
1.737 albertel 8862: # uniqifiy package listing
8863: my %seen;
8864: my @uniq_packages =
8865: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
8866: $metaentry{':packages'} = join(',',@uniq_packages);
8867:
1.1070 www 8868: if ($importedparts) {
8869: # We had imported parts and need to rebuild partorder
8870: $metaentry{':partorder'}='';
8871: $metathesekeys{'partorder'}=1;
8872: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
8873: if ($origfileimportpartids[$index] eq 'part') {
8874: # original part, part of the problem
8875: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
8876: } else {
8877: # we have imported parts at this position
8878: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
8879: }
8880: }
8881: $metaentry{':partorder'}=~s/^\,//;
8882: }
8883:
1.737 albertel 8884: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 8885: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
8886: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 8887: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 8888: # this is the end of "was not already recently cached
1.71 www 8889: }
1.599 albertel 8890: return $metaentry{':'.$what};
1.261 albertel 8891: }
8892:
1.488 albertel 8893: sub metadata_create_package_def {
1.483 albertel 8894: my ($uri,$key,$package,$metathesekeys)=@_;
8895: my ($pack,$name,$subp)=split(/\&/,$key);
8896: if ($subp eq 'default') { next; }
8897:
1.599 albertel 8898: if (defined($metaentry{':packages'})) {
8899: $metaentry{':packages'}.=','.$package;
1.483 albertel 8900: } else {
1.599 albertel 8901: $metaentry{':packages'}=$package;
1.483 albertel 8902: }
8903: my $value=$packagetab{$key};
8904: my $unikey;
8905: $unikey='parameter_0_'.$name;
1.599 albertel 8906: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 8907: $$metathesekeys{$unikey}=1;
1.599 albertel 8908: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8909: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 8910: }
1.599 albertel 8911: if (defined($metaentry{':'.$unikey.'.default'})) {
8912: $metaentry{':'.$unikey}=
8913: $metaentry{':'.$unikey.'.default'};
1.483 albertel 8914: }
8915: }
8916:
1.261 albertel 8917: sub metadata_generate_part0 {
8918: my ($metadata,$metacache,$uri) = @_;
8919: my %allnames;
1.737 albertel 8920: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 8921: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 8922: my $part=$$metacache{':'.$metakey.'.part'};
8923: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 8924: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 8925: $allnames{$name}=$part;
8926: }
8927: }
8928: }
8929: foreach my $name (keys(%allnames)) {
8930: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 8931: my $key=":parameter_0_$name";
1.261 albertel 8932: $$metacache{"$key.part"}='0';
8933: $$metacache{"$key.name"}=$name;
1.428 albertel 8934: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 8935: $allnames{$name}.'_'.$name.
8936: '.type'};
1.428 albertel 8937: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 8938: '.display'};
1.644 www 8939: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 8940: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 8941: $$metacache{"$key.display"}=$olddis;
8942: }
1.71 www 8943: }
8944:
1.764 albertel 8945: # ------------------------------------------------------ Devalidate title cache
8946:
8947: sub devalidate_title_cache {
8948: my ($url)=@_;
8949: if (!$env{'request.course.id'}) { return; }
8950: my $symb=&symbread($url);
8951: if (!$symb) { return; }
8952: my $key=$env{'request.course.id'}."\0".$symb;
8953: &devalidate_cache_new('title',$key);
8954: }
8955:
1.1014 droeschl 8956: # ------------------------------------------------- Get the title of a course
8957:
8958: sub current_course_title {
8959: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
8960: }
1.301 www 8961: # ------------------------------------------------- Get the title of a resource
8962:
8963: sub gettitle {
8964: my $urlsymb=shift;
8965: my $symb=&symbread($urlsymb);
1.534 albertel 8966: if ($symb) {
1.620 albertel 8967: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 8968: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 8969: if (defined($cached)) {
8970: return $result;
8971: }
1.534 albertel 8972: my ($map,$resid,$url)=&decode_symb($symb);
8973: my $title='';
1.907 albertel 8974: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
8975: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
8976: } else {
8977: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8978: &GDBM_READER(),0640)) {
8979: my $mapid=$bighash{'map_pc_'.&clutter($map)};
8980: $title=$bighash{'title_'.$mapid.'.'.$resid};
8981: untie(%bighash);
8982: }
1.534 albertel 8983: }
8984: $title=~s/\&colon\;/\:/gs;
8985: if ($title) {
1.599 albertel 8986: return &do_cache_new('title',$key,$title,600);
1.534 albertel 8987: }
8988: $urlsymb=$url;
8989: }
8990: my $title=&metadata($urlsymb,'title');
8991: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
8992: return $title;
1.301 www 8993: }
1.613 albertel 8994:
1.614 albertel 8995: sub get_slot {
8996: my ($which,$cnum,$cdom)=@_;
8997: if (!$cnum || !$cdom) {
1.790 albertel 8998: (undef,my $courseid)=&whichuser();
1.620 albertel 8999: $cdom=$env{'course.'.$courseid.'.domain'};
9000: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 9001: }
1.703 albertel 9002: my $key=join("\0",'slots',$cdom,$cnum,$which);
9003: my %slotinfo;
9004: if (exists($remembered{$key})) {
9005: $slotinfo{$which} = $remembered{$key};
9006: } else {
9007: %slotinfo=&get('slots',[$which],$cdom,$cnum);
9008: &Apache::lonhomework::showhash(%slotinfo);
9009: my ($tmp)=keys(%slotinfo);
9010: if ($tmp=~/^error:/) { return (); }
9011: $remembered{$key} = $slotinfo{$which};
9012: }
1.616 albertel 9013: if (ref($slotinfo{$which}) eq 'HASH') {
9014: return %{$slotinfo{$which}};
9015: }
9016: return $slotinfo{$which};
1.614 albertel 9017: }
1.31 www 9018: # ------------------------------------------------- Update symbolic store links
9019:
9020: sub symblist {
9021: my ($mapname,%newhash)=@_;
1.438 www 9022: $mapname=&deversion(&declutter($mapname));
1.31 www 9023: my %hash;
1.620 albertel 9024: if (($env{'request.course.fn'}) && (%newhash)) {
9025: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 9026: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 9027: foreach my $url (keys(%newhash)) {
1.711 albertel 9028: next if ($url eq 'last_known'
9029: && $env{'form.no_update_last_known'});
9030: $hash{declutter($url)}=&encode_symb($mapname,
9031: $newhash{$url}->[1],
9032: $newhash{$url}->[0]);
1.191 harris41 9033: }
1.31 www 9034: if (untie(%hash)) {
9035: return 'ok';
9036: }
9037: }
9038: }
9039: return 'error';
1.212 www 9040: }
9041:
9042: # --------------------------------------------------------------- Verify a symb
9043:
9044: sub symbverify {
1.510 www 9045: my ($symb,$thisurl)=@_;
9046: my $thisfn=$thisurl;
1.439 www 9047: $thisfn=&declutter($thisfn);
1.215 www 9048: # direct jump to resource in page or to a sequence - will construct own symbs
9049: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
9050: # check URL part
1.409 www 9051: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 9052:
1.431 www 9053: unless ($url eq $thisfn) { return 0; }
1.213 www 9054:
1.216 www 9055: $symb=&symbclean($symb);
1.510 www 9056: $thisurl=&deversion($thisurl);
1.439 www 9057: $thisfn=&deversion($thisfn);
1.213 www 9058:
9059: my %bighash;
9060: my $okay=0;
1.431 www 9061:
1.620 albertel 9062: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 9063: &GDBM_READER(),0640)) {
1.1032 raeburn 9064: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
9065: $thisurl =~ s/\?.+$//;
9066: }
1.510 www 9067: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1102 raeburn 9068: unless ($ids) {
9069: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
9070: $ids=$bighash{$idkey};
1.216 www 9071: }
9072: if ($ids) {
9073: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 9074: foreach my $id (split(/\,/,$ids)) {
9075: my ($mapid,$resid)=split(/\./,$id);
1.1032 raeburn 9076: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
9077: $symb =~ s/\?.+$//;
9078: }
1.216 www 9079: if (
9080: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
9081: eq $symb) {
1.620 albertel 9082: if (($env{'request.role.adv'}) ||
1.1101 raeburn 9083: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
9084: ($thisurl eq '/adm/navmaps')) {
1.582 albertel 9085: $okay=1;
9086: }
9087: }
1.216 www 9088: }
9089: }
1.213 www 9090: untie(%bighash);
9091: }
9092: return $okay;
1.31 www 9093: }
9094:
1.210 www 9095: # --------------------------------------------------------------- Clean-up symb
9096:
9097: sub symbclean {
9098: my $symb=shift;
1.568 albertel 9099: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 9100: # remove version from map
9101: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 9102:
1.210 www 9103: # remove version from URL
9104: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 9105:
1.507 www 9106: # remove wrapper
9107:
1.510 www 9108: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 9109: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 9110: return $symb;
1.409 www 9111: }
9112:
9113: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 9114:
9115: sub encode_symb {
9116: my ($map,$resid,$url)=@_;
9117: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
9118: }
1.409 www 9119:
9120: sub decode_symb {
1.568 albertel 9121: my $symb=shift;
9122: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
9123: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 9124: return (&fixversion($map),$resid,&fixversion($url));
9125: }
9126:
9127: sub fixversion {
9128: my $fn=shift;
1.609 banghart 9129: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 9130: my %bighash;
9131: my $uri=&clutter($fn);
1.620 albertel 9132: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 9133: # is this cached?
1.599 albertel 9134: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 9135: if (defined($cached)) { return $result; }
9136: # unfortunately not cached, or expired
1.620 albertel 9137: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 9138: &GDBM_READER(),0640)) {
9139: if ($bighash{'version_'.$uri}) {
9140: my $version=$bighash{'version_'.$uri};
1.444 www 9141: unless (($version eq 'mostrecent') ||
9142: ($version==&getversion($uri))) {
1.440 www 9143: $uri=~s/\.(\w+)$/\.$version\.$1/;
9144: }
9145: }
9146: untie %bighash;
1.413 www 9147: }
1.599 albertel 9148: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 9149: }
9150:
9151: sub deversion {
9152: my $url=shift;
9153: $url=~s/\.\d+\.(\w+)$/\.$1/;
9154: return $url;
1.210 www 9155: }
9156:
1.31 www 9157: # ------------------------------------------------------ Return symb list entry
9158:
9159: sub symbread {
1.249 www 9160: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 9161: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 9162: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 9163: # no filename provided? try from environment
1.44 www 9164: unless ($thisfn) {
1.620 albertel 9165: if ($env{'request.symb'}) {
9166: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 9167: }
1.620 albertel 9168: $thisfn=$env{'request.filename'};
1.44 www 9169: }
1.569 albertel 9170: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 9171: # is that filename actually a symb? Verify, clean, and return
9172: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 9173: if (&symbverify($thisfn,$1)) {
1.620 albertel 9174: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 9175: }
1.242 www 9176: }
1.44 www 9177: $thisfn=declutter($thisfn);
1.31 www 9178: my %hash;
1.37 www 9179: my %bighash;
9180: my $syval='';
1.620 albertel 9181: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 9182: my $targetfn = $thisfn;
1.609 banghart 9183: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 9184: $targetfn = 'adm/wrapper/'.$thisfn;
9185: }
1.687 albertel 9186: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
9187: $targetfn=$1;
9188: }
1.620 albertel 9189: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 9190: &GDBM_READER(),0640)) {
1.481 raeburn 9191: $syval=$hash{$targetfn};
1.37 www 9192: untie(%hash);
9193: }
9194: # ---------------------------------------------------------- There was an entry
9195: if ($syval) {
1.601 albertel 9196: #unless ($syval=~/\_\d+$/) {
1.620 albertel 9197: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 9198: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 9199: #return $env{$cache_str}='';
1.601 albertel 9200: #}
9201: #$syval.=$1;
9202: #}
1.37 www 9203: } else {
9204: # ------------------------------------------------------- Was not in symb table
1.620 albertel 9205: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 9206: &GDBM_READER(),0640)) {
1.37 www 9207: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 9208: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 9209: unless ($ids) {
9210: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 9211: }
9212: unless ($ids) {
9213: # alias?
9214: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 9215: }
1.37 www 9216: if ($ids) {
9217: # ------------------------------------------------------------------- Has ID(s)
9218: my @possibilities=split(/\,/,$ids);
1.39 www 9219: if ($#possibilities==0) {
9220: # ----------------------------------------------- There is only one possibility
1.37 www 9221: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 9222: $syval=&encode_symb($bighash{'map_id_'.$mapid},
9223: $resid,$thisfn);
1.249 www 9224: } elsif (!$donotrecurse) {
1.39 www 9225: # ------------------------------------------ There is more than one possibility
9226: my $realpossible=0;
1.800 albertel 9227: foreach my $id (@possibilities) {
9228: my $file=$bighash{'src_'.$id};
1.39 www 9229: if (&allowed('bre',$file)) {
1.800 albertel 9230: my ($mapid,$resid)=split(/\./,$id);
1.39 www 9231: if ($bighash{'map_type_'.$mapid} ne 'page') {
9232: $realpossible++;
1.626 albertel 9233: $syval=&encode_symb($bighash{'map_id_'.$mapid},
9234: $resid,$thisfn);
1.39 www 9235: }
9236: }
1.191 harris41 9237: }
1.39 www 9238: if ($realpossible!=1) { $syval=''; }
1.249 www 9239: } else {
9240: $syval='';
1.37 www 9241: }
9242: }
9243: untie(%bighash)
1.481 raeburn 9244: }
1.31 www 9245: }
1.62 www 9246: if ($syval) {
1.620 albertel 9247: return $env{$cache_str}=$syval;
1.62 www 9248: }
1.31 www 9249: }
1.949 raeburn 9250: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 9251: return $env{$cache_str}='';
1.31 www 9252: }
9253:
9254: # ---------------------------------------------------------- Return random seed
9255:
1.32 www 9256: sub numval {
9257: my $txt=shift;
9258: $txt=~tr/A-J/0-9/;
9259: $txt=~tr/a-j/0-9/;
9260: $txt=~tr/K-T/0-9/;
9261: $txt=~tr/k-t/0-9/;
9262: $txt=~tr/U-Z/0-5/;
9263: $txt=~tr/u-z/0-5/;
9264: $txt=~s/\D//g;
1.564 albertel 9265: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 9266: return int($txt);
1.368 albertel 9267: }
9268:
1.484 albertel 9269: sub numval2 {
9270: my $txt=shift;
9271: $txt=~tr/A-J/0-9/;
9272: $txt=~tr/a-j/0-9/;
9273: $txt=~tr/K-T/0-9/;
9274: $txt=~tr/k-t/0-9/;
9275: $txt=~tr/U-Z/0-5/;
9276: $txt=~tr/u-z/0-5/;
9277: $txt=~s/\D//g;
9278: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
9279: my $total;
9280: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 9281: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 9282: return int($total);
9283: }
9284:
1.575 albertel 9285: sub numval3 {
9286: use integer;
9287: my $txt=shift;
9288: $txt=~tr/A-J/0-9/;
9289: $txt=~tr/a-j/0-9/;
9290: $txt=~tr/K-T/0-9/;
9291: $txt=~tr/k-t/0-9/;
9292: $txt=~tr/U-Z/0-5/;
9293: $txt=~tr/u-z/0-5/;
9294: $txt=~s/\D//g;
9295: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
9296: my $total;
9297: foreach my $val (@txts) { $total+=$val; }
9298: if ($_64bit) { $total=(($total<<32)>>32); }
9299: return $total;
9300: }
9301:
1.675 albertel 9302: sub digest {
9303: my ($data)=@_;
9304: my $digest=&Digest::MD5::md5($data);
9305: my ($a,$b,$c,$d)=unpack("iiii",$digest);
9306: my ($e,$f);
9307: {
9308: use integer;
9309: $e=($a+$b);
9310: $f=($c+$d);
9311: if ($_64bit) {
9312: $e=(($e<<32)>>32);
9313: $f=(($f<<32)>>32);
9314: }
9315: }
9316: if (wantarray) {
9317: return ($e,$f);
9318: } else {
9319: my $g;
9320: {
9321: use integer;
9322: $g=($e+$f);
9323: if ($_64bit) {
9324: $g=(($g<<32)>>32);
9325: }
9326: }
9327: return $g;
9328: }
9329: }
9330:
1.368 albertel 9331: sub latest_rnd_algorithm_id {
1.675 albertel 9332: return '64bit5';
1.366 albertel 9333: }
1.32 www 9334:
1.503 albertel 9335: sub get_rand_alg {
9336: my ($courseid)=@_;
1.790 albertel 9337: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 9338: if ($courseid) {
1.620 albertel 9339: return $env{"course.$courseid.rndseed"};
1.503 albertel 9340: }
9341: return &latest_rnd_algorithm_id();
9342: }
9343:
1.562 albertel 9344: sub validCODE {
9345: my ($CODE)=@_;
9346: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
9347: return 0;
9348: }
9349:
1.491 albertel 9350: sub getCODE {
1.620 albertel 9351: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 9352: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
9353: defined($Apache::lonhomework::parsing_a_task) ) &&
9354: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 9355: return $Apache::lonhomework::history{'resource.CODE'};
9356: }
9357: return undef;
9358: }
9359:
1.31 www 9360: sub rndseed {
1.155 albertel 9361: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 9362: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 9363: if (!defined($symb)) {
1.366 albertel 9364: unless ($symb=$wsymb) { return time; }
9365: }
9366: if (!$courseid) { $courseid=$wcourseid; }
9367: if (!$domain) { $domain=$wdomain; }
9368: if (!$username) { $username=$wusername }
1.503 albertel 9369: my $which=&get_rand_alg();
1.1110 www 9370:
1.491 albertel 9371: if (defined(&getCODE())) {
1.675 albertel 9372: if ($which eq '64bit5') {
9373: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
9374: } elsif ($which eq '64bit4') {
1.575 albertel 9375: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
9376: } else {
9377: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
9378: }
1.675 albertel 9379: } elsif ($which eq '64bit5') {
9380: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 9381: } elsif ($which eq '64bit4') {
9382: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 9383: } elsif ($which eq '64bit3') {
9384: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 9385: } elsif ($which eq '64bit2') {
9386: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 9387: } elsif ($which eq '64bit') {
9388: return &rndseed_64bit($symb,$courseid,$domain,$username);
9389: }
9390: return &rndseed_32bit($symb,$courseid,$domain,$username);
9391: }
9392:
9393: sub rndseed_32bit {
9394: my ($symb,$courseid,$domain,$username)=@_;
9395: {
9396: use integer;
9397: my $symbchck=unpack("%32C*",$symb) << 27;
9398: my $symbseed=numval($symb) << 22;
9399: my $namechck=unpack("%32C*",$username) << 17;
9400: my $nameseed=numval($username) << 12;
9401: my $domainseed=unpack("%32C*",$domain) << 7;
9402: my $courseseed=unpack("%32C*",$courseid);
9403: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 9404: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9405: #&logthis("rndseed :$num:$symb");
1.564 albertel 9406: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 9407: return $num;
9408: }
9409: }
9410:
9411: sub rndseed_64bit {
9412: my ($symb,$courseid,$domain,$username)=@_;
9413: {
9414: use integer;
9415: my $symbchck=unpack("%32S*",$symb) << 21;
9416: my $symbseed=numval($symb) << 10;
9417: my $namechck=unpack("%32S*",$username);
9418:
9419: my $nameseed=numval($username) << 21;
9420: my $domainseed=unpack("%32S*",$domain) << 10;
9421: my $courseseed=unpack("%32S*",$courseid);
9422:
9423: my $num1=$symbchck+$symbseed+$namechck;
9424: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9425: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9426: #&logthis("rndseed :$num:$symb");
1.564 albertel 9427: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 9428: return "$num1,$num2";
1.155 albertel 9429: }
1.366 albertel 9430: }
9431:
1.443 albertel 9432: sub rndseed_64bit2 {
9433: my ($symb,$courseid,$domain,$username)=@_;
9434: {
9435: use integer;
9436: # strings need to be an even # of cahracters long, it it is odd the
9437: # last characters gets thrown away
9438: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9439: my $symbseed=numval($symb) << 10;
9440: my $namechck=unpack("%32S*",$username.' ');
9441:
9442: my $nameseed=numval($username) << 21;
1.501 albertel 9443: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9444: my $courseseed=unpack("%32S*",$courseid.' ');
9445:
9446: my $num1=$symbchck+$symbseed+$namechck;
9447: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9448: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9449: #&logthis("rndseed :$num:$symb");
1.803 albertel 9450: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 9451: return "$num1,$num2";
9452: }
9453: }
9454:
9455: sub rndseed_64bit3 {
9456: my ($symb,$courseid,$domain,$username)=@_;
9457: {
9458: use integer;
9459: # strings need to be an even # of cahracters long, it it is odd the
9460: # last characters gets thrown away
9461: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9462: my $symbseed=numval2($symb) << 10;
9463: my $namechck=unpack("%32S*",$username.' ');
9464:
9465: my $nameseed=numval2($username) << 21;
1.443 albertel 9466: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9467: my $courseseed=unpack("%32S*",$courseid.' ');
9468:
9469: my $num1=$symbchck+$symbseed+$namechck;
9470: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9471: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9472: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 9473: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 9474:
1.503 albertel 9475: return "$num1:$num2";
1.443 albertel 9476: }
9477: }
9478:
1.575 albertel 9479: sub rndseed_64bit4 {
9480: my ($symb,$courseid,$domain,$username)=@_;
9481: {
9482: use integer;
9483: # strings need to be an even # of cahracters long, it it is odd the
9484: # last characters gets thrown away
9485: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9486: my $symbseed=numval3($symb) << 10;
9487: my $namechck=unpack("%32S*",$username.' ');
9488:
9489: my $nameseed=numval3($username) << 21;
9490: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9491: my $courseseed=unpack("%32S*",$courseid.' ');
9492:
9493: my $num1=$symbchck+$symbseed+$namechck;
9494: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9495: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9496: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 9497: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 9498:
1.575 albertel 9499: return "$num1:$num2";
9500: }
9501: }
9502:
1.675 albertel 9503: sub rndseed_64bit5 {
9504: my ($symb,$courseid,$domain,$username)=@_;
9505: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
9506: return "$num1:$num2";
9507: }
9508:
1.366 albertel 9509: sub rndseed_CODE_64bit {
9510: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 9511: {
1.366 albertel 9512: use integer;
1.443 albertel 9513: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 9514: my $symbseed=numval2($symb);
1.491 albertel 9515: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
9516: my $CODEseed=numval(&getCODE());
1.443 albertel 9517: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 9518: my $num1=$symbseed+$CODEchck;
9519: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 9520: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
9521: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 9522: if ($_64bit) { $num1=(($num1<<32)>>32); }
9523: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 9524: return "$num1:$num2";
1.366 albertel 9525: }
9526: }
9527:
1.575 albertel 9528: sub rndseed_CODE_64bit4 {
9529: my ($symb,$courseid,$domain,$username)=@_;
9530: {
9531: use integer;
9532: my $symbchck=unpack("%32S*",$symb.' ') << 16;
9533: my $symbseed=numval3($symb);
9534: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
9535: my $CODEseed=numval3(&getCODE());
9536: my $courseseed=unpack("%32S*",$courseid.' ');
9537: my $num1=$symbseed+$CODEchck;
9538: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 9539: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
9540: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 9541: if ($_64bit) { $num1=(($num1<<32)>>32); }
9542: if ($_64bit) { $num2=(($num2<<32)>>32); }
9543: return "$num1:$num2";
9544: }
9545: }
9546:
1.675 albertel 9547: sub rndseed_CODE_64bit5 {
9548: my ($symb,$courseid,$domain,$username)=@_;
9549: my $code = &getCODE();
9550: my ($num1,$num2)=&digest("$symb,$courseid,$code");
9551: return "$num1:$num2";
9552: }
9553:
1.366 albertel 9554: sub setup_random_from_rndseed {
9555: my ($rndseed)=@_;
1.503 albertel 9556: if ($rndseed =~/([,:])/) {
9557: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 9558: &Math::Random::random_set_seed(abs($num1),abs($num2));
9559: } else {
9560: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 9561: }
1.36 albertel 9562: }
9563:
1.474 albertel 9564: sub latest_receipt_algorithm_id {
1.835 albertel 9565: return 'receipt3';
1.474 albertel 9566: }
9567:
1.480 www 9568: sub recunique {
9569: my $fucourseid=shift;
9570: my $unique;
1.835 albertel 9571: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
9572: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 9573: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 9574: } else {
9575: $unique=$perlvar{'lonReceipt'};
9576: }
9577: return unpack("%32C*",$unique);
9578: }
9579:
9580: sub recprefix {
9581: my $fucourseid=shift;
9582: my $prefix;
1.835 albertel 9583: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
9584: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 9585: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 9586: } else {
9587: $prefix=$perlvar{'lonHostID'};
9588: }
9589: return unpack("%32C*",$prefix);
9590: }
9591:
1.76 www 9592: sub ireceipt {
1.474 albertel 9593: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 9594:
9595: my $return =&recprefix($fucourseid).'-';
9596:
9597: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
9598: $env{'request.state'} eq 'construct') {
9599: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
9600: return $return;
9601: }
9602:
1.76 www 9603: my $cuname=unpack("%32C*",$funame);
9604: my $cudom=unpack("%32C*",$fudom);
9605: my $cucourseid=unpack("%32C*",$fucourseid);
9606: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 9607: my $cunique=&recunique($fucourseid);
1.474 albertel 9608: my $cpart=unpack("%32S*",$part);
1.835 albertel 9609: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
9610:
1.790 albertel 9611: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 9612:
9613: $return.= ($cunique%$cuname+
9614: $cunique%$cudom+
9615: $cusymb%$cuname+
9616: $cusymb%$cudom+
9617: $cucourseid%$cuname+
9618: $cucourseid%$cudom+
9619: $cpart%$cuname+
9620: $cpart%$cudom);
9621: } else {
9622: $return.= ($cunique%$cuname+
9623: $cunique%$cudom+
9624: $cusymb%$cuname+
9625: $cusymb%$cudom+
9626: $cucourseid%$cuname+
9627: $cucourseid%$cudom);
9628: }
9629: return $return;
1.76 www 9630: }
9631:
9632: sub receipt {
1.474 albertel 9633: my ($part)=@_;
1.790 albertel 9634: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 9635: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 9636: }
1.260 ng 9637:
1.790 albertel 9638: sub whichuser {
9639: my ($passedsymb)=@_;
9640: my ($symb,$courseid,$domain,$name,$publicuser);
9641: if (defined($env{'form.grade_symb'})) {
9642: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
9643: my $allowed=&allowed('vgr',$tmp_courseid);
9644: if (!$allowed &&
9645: exists($env{'request.course.sec'}) &&
9646: $env{'request.course.sec'} !~ /^\s*$/) {
9647: $allowed=&allowed('vgr',$tmp_courseid.
9648: '/'.$env{'request.course.sec'});
9649: }
9650: if ($allowed) {
9651: ($symb)=&get_env_multiple('form.grade_symb');
9652: $courseid=$tmp_courseid;
9653: ($domain)=&get_env_multiple('form.grade_domain');
9654: ($name)=&get_env_multiple('form.grade_username');
9655: return ($symb,$courseid,$domain,$name,$publicuser);
9656: }
9657: }
9658: if (!$passedsymb) {
9659: $symb=&symbread();
9660: } else {
9661: $symb=$passedsymb;
9662: }
9663: $courseid=$env{'request.course.id'};
9664: $domain=$env{'user.domain'};
9665: $name=$env{'user.name'};
9666: if ($name eq 'public' && $domain eq 'public') {
9667: if (!defined($env{'form.username'})) {
9668: $env{'form.username'}.=time.rand(10000000);
9669: }
9670: $name.=$env{'form.username'};
9671: }
9672: return ($symb,$courseid,$domain,$name,$publicuser);
9673:
9674: }
9675:
1.36 albertel 9676: # ------------------------------------------------------------ Serves up a file
1.472 albertel 9677: # returns either the contents of the file or
9678: # -1 if the file doesn't exist
1.481 raeburn 9679: #
9680: # if the target is a file that was uploaded via DOCS,
9681: # a check will be made to see if a current copy exists on the local server,
9682: # if it does this will be served, otherwise a copy will be retrieved from
9683: # the home server for the course and stored in /home/httpd/html/userfiles on
9684: # the local server.
1.472 albertel 9685:
1.36 albertel 9686: sub getfile {
1.538 albertel 9687: my ($file) = @_;
1.609 banghart 9688: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 9689: &repcopy($file);
9690: return &readfile($file);
9691: }
9692:
9693: sub repcopy_userfile {
9694: my ($file)=@_;
1.609 banghart 9695: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 9696: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 9697: my ($cdom,$cnum,$filename) =
1.811 albertel 9698: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 9699: my $uri="/uploaded/$cdom/$cnum/$filename";
9700: if (-e "$file") {
1.828 www 9701: # we already have a local copy, check it out
1.538 albertel 9702: my @fileinfo = stat($file);
1.828 www 9703: my $rtncode;
9704: my $info;
1.538 albertel 9705: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 9706: if ($lwpresp ne 'ok') {
1.828 www 9707: # there is no such file anymore, even though we had a local copy
1.482 albertel 9708: if ($rtncode eq '404') {
1.538 albertel 9709: unlink($file);
1.482 albertel 9710: }
9711: return -1;
9712: }
9713: if ($info < $fileinfo[9]) {
1.828 www 9714: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 9715: return 'ok';
1.828 www 9716: } else {
9717: # the file is outdated, get rid of it
9718: unlink($file);
1.482 albertel 9719: }
1.828 www 9720: }
9721: # one way or the other, at this point, we don't have the file
9722: # construct the correct path for the file
9723: my @parts = ($cdom,$cnum);
9724: if ($filename =~ m|^(.+)/[^/]+$|) {
9725: push @parts, split(/\//,$1);
9726: }
9727: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
9728: foreach my $part (@parts) {
9729: $path .= '/'.$part;
9730: if (!-e $path) {
9731: mkdir($path,0770);
1.482 albertel 9732: }
9733: }
1.828 www 9734: # now the path exists for sure
9735: # get a user agent
9736: my $ua=new LWP::UserAgent;
9737: my $transferfile=$file.'.in.transfer';
9738: # FIXME: this should flock
9739: if (-e $transferfile) { return 'ok'; }
9740: my $request;
9741: $uri=~s/^\///;
1.980 raeburn 9742: my $homeserver = &homeserver($cnum,$cdom);
9743: my $protocol = $protocol{$homeserver};
9744: $protocol = 'http' if ($protocol ne 'https');
9745: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 9746: my $response=$ua->request($request,$transferfile);
9747: # did it work?
9748: if ($response->is_error()) {
9749: unlink($transferfile);
9750: &logthis("Userfile repcopy failed for $uri");
9751: return -1;
9752: }
9753: # worked, rename the transfer file
9754: rename($transferfile,$file);
1.607 raeburn 9755: return 'ok';
1.481 raeburn 9756: }
9757:
1.517 albertel 9758: sub tokenwrapper {
9759: my $uri=shift;
1.980 raeburn 9760: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 9761: $uri=~s|^/||;
1.620 albertel 9762: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 9763: my $token=$1;
1.552 albertel 9764: my (undef,$udom,$uname,$file)=split('/',$uri,4);
9765: if ($udom && $uname && $file) {
9766: $file=~s|(\?\.*)*$||;
1.949 raeburn 9767: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 9768: my $homeserver = &homeserver($uname,$udom);
9769: my $protocol = $protocol{$homeserver};
9770: $protocol = 'http' if ($protocol ne 'https');
9771: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 9772: (($uri=~/\?/)?'&':'?').'token='.$token.
9773: '&tokenissued='.$perlvar{'lonHostID'};
9774: } else {
9775: return '/adm/notfound.html';
9776: }
9777: }
9778:
1.828 www 9779: # call with reqtype HEAD: get last modification time
9780: # call with reqtype GET: get the file contents
9781: # Do not call this with reqtype GET for large files! It loads everything into memory
9782: #
1.481 raeburn 9783: sub getuploaded {
9784: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
9785: $uri=~s/^\///;
1.980 raeburn 9786: my $homeserver = &homeserver($cnum,$cdom);
9787: my $protocol = $protocol{$homeserver};
9788: $protocol = 'http' if ($protocol ne 'https');
9789: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 9790: my $ua=new LWP::UserAgent;
9791: my $request=new HTTP::Request($reqtype,$uri);
9792: my $response=$ua->request($request);
9793: $$rtncode = $response->code;
1.482 albertel 9794: if (! $response->is_success()) {
9795: return 'failed';
9796: }
9797: if ($reqtype eq 'HEAD') {
1.486 www 9798: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 9799: } elsif ($reqtype eq 'GET') {
9800: $$info = $response->content;
1.472 albertel 9801: }
1.482 albertel 9802: return 'ok';
1.36 albertel 9803: }
9804:
1.481 raeburn 9805: sub readfile {
9806: my $file = shift;
9807: if ( (! -e $file ) || ($file eq '') ) { return -1; };
9808: my $fh;
9809: open($fh,"<$file");
9810: my $a='';
1.800 albertel 9811: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 9812: return $a;
9813: }
9814:
1.36 albertel 9815: sub filelocation {
1.590 banghart 9816: my ($dir,$file) = @_;
9817: my $location;
9818: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 9819:
9820: if ($file =~ m-^/adm/-) {
9821: $file=~s-^/adm/wrapper/-/-;
9822: $file=~s-^/adm/coursedocs/showdoc/-/-;
9823: }
1.882 albertel 9824:
1.590 banghart 9825: if ($file=~m:^/~:) { # is a contruction space reference
9826: $location = $file;
9827: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 9828: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 9829: # is a correct contruction space reference
9830: $location = $file;
1.956 raeburn 9831: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
9832: $location = $file;
1.609 banghart 9833: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 9834: my ($udom,$uname,$filename)=
1.811 albertel 9835: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 9836: my $home=&homeserver($uname,$udom);
9837: my $is_me=0;
9838: my @ids=¤t_machine_ids();
9839: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
9840: if ($is_me) {
1.1117 foxr 9841: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 9842: } else {
9843: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
9844: $udom.'/'.$uname.'/'.$filename;
9845: }
1.882 albertel 9846: } elsif ($file =~ m-^/adm/-) {
9847: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 9848: } else {
9849: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
9850: $file=~s:^/res/:/:;
9851: if ( !( $file =~ m:^/:) ) {
9852: $location = $dir. '/'.$file;
9853: } else {
9854: $location = '/home/httpd/html/res'.$file;
9855: }
1.59 albertel 9856: }
1.590 banghart 9857: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 9858: while ($location=~m{/\.\./}) {
9859: if ($location =~ m{/[^/]+/\.\./}) {
9860: $location=~ s{/[^/]+/\.\./}{/}g;
9861: } else {
9862: $location=~ s{/\.\./}{/}g;
9863: }
9864: } #remove dir/..
1.590 banghart 9865: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
9866: return $location;
1.46 www 9867: }
1.36 albertel 9868:
1.46 www 9869: sub hreflocation {
9870: my ($dir,$file)=@_;
1.980 raeburn 9871: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 9872: $file=filelocation($dir,$file);
1.700 albertel 9873: } elsif ($file=~m-^/adm/-) {
9874: $file=~s-^/adm/wrapper/-/-;
9875: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 9876: }
9877: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
9878: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 9879: } elsif ($file=~m-/home/($match_username)/public_html/-) {
9880: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 9881: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 9882: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 9883: -/uploaded/$1/$2/-x;
1.46 www 9884: }
1.913 albertel 9885: if ($file=~ m{^/userfiles/}) {
9886: $file =~ s{^/userfiles/}{/uploaded/};
9887: }
1.462 albertel 9888: return $file;
1.465 albertel 9889: }
9890:
9891: sub current_machine_domains {
1.853 albertel 9892: return &machine_domains(&hostname($perlvar{'lonHostID'}));
9893: }
9894:
9895: sub machine_domains {
9896: my ($hostname) = @_;
1.465 albertel 9897: my @domains;
1.838 albertel 9898: my %hostname = &all_hostnames();
1.465 albertel 9899: while( my($id, $name) = each(%hostname)) {
1.467 matthew 9900: # &logthis("-$id-$name-$hostname-");
1.465 albertel 9901: if ($hostname eq $name) {
1.844 albertel 9902: push(@domains,&host_domain($id));
1.465 albertel 9903: }
9904: }
9905: return @domains;
9906: }
9907:
9908: sub current_machine_ids {
1.853 albertel 9909: return &machine_ids(&hostname($perlvar{'lonHostID'}));
9910: }
9911:
9912: sub machine_ids {
9913: my ($hostname) = @_;
9914: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 9915: my @ids;
1.888 albertel 9916: my %name_to_host = &all_names();
1.889 albertel 9917: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
9918: return @{ $name_to_host{$hostname} };
9919: }
9920: return;
1.31 www 9921: }
9922:
1.824 raeburn 9923: sub additional_machine_domains {
9924: my @domains;
9925: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
9926: while( my $line = <$fh>) {
9927: $line =~ s/\s//g;
9928: push(@domains,$line);
9929: }
9930: return @domains;
9931: }
9932:
9933: sub default_login_domain {
9934: my $domain = $perlvar{'lonDefDomain'};
9935: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
9936: foreach my $posdom (¤t_machine_domains(),
9937: &additional_machine_domains()) {
9938: if (lc($posdom) eq lc($testdomain)) {
9939: $domain=$posdom;
9940: last;
9941: }
9942: }
9943: return $domain;
9944: }
9945:
1.31 www 9946: # ------------------------------------------------------------- Declutters URLs
9947:
9948: sub declutter {
9949: my $thisfn=shift;
1.569 albertel 9950: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 9951: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 9952: $thisfn=~s/^\///;
1.697 albertel 9953: $thisfn=~s|^adm/wrapper/||;
9954: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 9955: $thisfn=~s/^res\///;
1.1032 raeburn 9956: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
9957: $thisfn=~s/\?.+$//;
9958: }
1.268 www 9959: return $thisfn;
9960: }
9961:
9962: # ------------------------------------------------------------- Clutter up URLs
9963:
9964: sub clutter {
9965: my $thisfn='/'.&declutter(shift);
1.887 albertel 9966: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 9967: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 9968: $thisfn='/res'.$thisfn;
9969: }
1.1031 raeburn 9970: if ($thisfn !~m|^/adm|) {
9971: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 9972: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 9973: } else {
9974: my ($ext) = ($thisfn =~ /\.(\w+)$/);
9975: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 9976: if ($embstyle eq 'ssi'
9977: || ($embstyle eq 'hdn')
9978: || ($embstyle eq 'rat')
9979: || ($embstyle eq 'prv')
9980: || ($embstyle eq 'ign')) {
9981: #do nothing with these
9982: } elsif (($embstyle eq 'img')
1.695 albertel 9983: || ($embstyle eq 'emb')
9984: || ($embstyle eq 'wrp')) {
9985: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 9986: } elsif ($embstyle eq 'unk'
9987: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 9988: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 9989: } else {
1.718 www 9990: # &logthis("Got a blank emb style");
1.695 albertel 9991: }
1.694 albertel 9992: }
9993: }
1.31 www 9994: return $thisfn;
1.12 www 9995: }
9996:
1.787 albertel 9997: sub clutter_with_no_wrapper {
9998: my $uri = &clutter(shift);
9999: if ($uri =~ m-^/adm/-) {
10000: $uri =~ s-^/adm/wrapper/-/-;
10001: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
10002: }
10003: return $uri;
10004: }
10005:
1.557 albertel 10006: sub freeze_escape {
10007: my ($value)=@_;
10008: if (ref($value)) {
10009: $value=&nfreeze($value);
10010: return '__FROZEN__'.&escape($value);
10011: }
10012: return &escape($value);
10013: }
10014:
1.11 www 10015:
1.557 albertel 10016: sub thaw_unescape {
10017: my ($value)=@_;
10018: if ($value =~ /^__FROZEN__/) {
10019: substr($value,0,10,undef);
10020: $value=&unescape($value);
10021: return &thaw($value);
10022: }
10023: return &unescape($value);
10024: }
10025:
1.436 albertel 10026: sub correct_line_ends {
10027: my ($result)=@_;
10028: $$result =~s/\r\n/\n/mg;
10029: $$result =~s/\r/\n/mg;
1.415 albertel 10030: }
1.1 albertel 10031: # ================================================================ Main Program
10032:
1.184 www 10033: sub goodbye {
1.204 albertel 10034: &logthis("Starting Shut down");
1.443 albertel 10035: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 10036: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 10037: #converted
1.599 albertel 10038: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 10039: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
10040: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
10041: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 10042: #1.1 only
1.870 albertel 10043: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
10044: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
10045: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
10046: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
10047: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 10048: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
10049: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 10050: &flushcourselogs();
10051: &logthis("Shutting down");
10052: }
10053:
1.852 albertel 10054: sub get_dns {
1.869 albertel 10055: my ($url,$func,$ignore_cache) = @_;
10056: if (!$ignore_cache) {
10057: my ($content,$cached)=
10058: &Apache::lonnet::is_cached_new('dns',$url);
10059: if ($cached) {
10060: &$func($content);
10061: return;
10062: }
10063: }
10064:
10065: my %alldns;
1.852 albertel 10066: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
10067: foreach my $dns (<$config>) {
10068: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 10069: my $line = $1;
10070: my ($host,$protocol) = split(/:/,$line);
10071: if ($protocol ne 'https') {
10072: $protocol = 'http';
10073: }
10074: $alldns{$host} = $protocol;
1.869 albertel 10075: }
10076: while (%alldns) {
10077: my ($dns) = keys(%alldns);
1.852 albertel 10078: my $ua=new LWP::UserAgent;
1.979 raeburn 10079: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 10080: my $response=$ua->request($request);
1.979 raeburn 10081: delete($alldns{$dns});
1.852 albertel 10082: next if ($response->is_error());
10083: my @content = split("\n",$response->content);
1.869 albertel 10084: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 10085: &$func(\@content);
1.869 albertel 10086: return;
1.852 albertel 10087: }
10088: close($config);
1.871 albertel 10089: my $which = (split('/',$url))[3];
10090: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
10091: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 10092: my @content = <$config>;
10093: &$func(\@content);
10094: return;
1.852 albertel 10095: }
1.327 albertel 10096: # ------------------------------------------------------------ Read domain file
10097: {
1.852 albertel 10098: my $loaded;
1.846 albertel 10099: my %domain;
10100:
1.852 albertel 10101: sub parse_domain_tab {
10102: my ($lines) = @_;
10103: foreach my $line (@$lines) {
10104: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 10105:
1.846 albertel 10106: chomp($line);
1.852 albertel 10107: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 10108: my %this_domain;
10109: foreach my $field ('description', 'auth_def', 'auth_arg_def',
10110: 'lang_def', 'city', 'longi', 'lati',
10111: 'primary') {
10112: $this_domain{$field} = shift(@elements);
10113: }
10114: $domain{$name} = \%this_domain;
1.852 albertel 10115: }
10116: }
1.864 albertel 10117:
10118: sub reset_domain_info {
10119: undef($loaded);
10120: undef(%domain);
10121: }
10122:
1.852 albertel 10123: sub load_domain_tab {
1.869 albertel 10124: my ($ignore_cache) = @_;
10125: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 10126: my $fh;
10127: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
10128: my @lines = <$fh>;
10129: &parse_domain_tab(\@lines);
1.448 albertel 10130: }
1.852 albertel 10131: close($fh);
10132: $loaded = 1;
1.327 albertel 10133: }
1.846 albertel 10134:
10135: sub domain {
1.852 albertel 10136: &load_domain_tab() if (!$loaded);
10137:
1.846 albertel 10138: my ($name,$what) = @_;
10139: return if ( !exists($domain{$name}) );
10140:
10141: if (!$what) {
10142: return $domain{$name}{'description'};
10143: }
10144: return $domain{$name}{$what};
10145: }
1.974 raeburn 10146:
10147: sub domain_info {
10148: &load_domain_tab() if (!$loaded);
10149: return %domain;
10150: }
10151:
1.327 albertel 10152: }
10153:
10154:
1.1 albertel 10155: # ------------------------------------------------------------- Read hosts file
10156: {
1.838 albertel 10157: my %hostname;
1.844 albertel 10158: my %hostdom;
1.845 albertel 10159: my %libserv;
1.852 albertel 10160: my $loaded;
1.888 albertel 10161: my %name_to_host;
1.1074 raeburn 10162: my %internetdom;
1.1107 raeburn 10163: my %LC_dns_serv;
1.852 albertel 10164:
10165: sub parse_hosts_tab {
10166: my ($file) = @_;
10167: foreach my $configline (@$file) {
10168: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 10169: chomp($configline);
10170: if ($configline =~ /^\^/) {
10171: if ($configline =~ /^\^([\w.\-]+)/) {
10172: $LC_dns_serv{$1} = 1;
10173: }
10174: next;
10175: }
1.1074 raeburn 10176: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 10177: $name=~s/\s//g;
10178: if ($id && $domain && $role && $name) {
10179: $hostname{$id}=$name;
1.888 albertel 10180: push(@{$name_to_host{$name}}, $id);
1.852 albertel 10181: $hostdom{$id}=$domain;
10182: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 10183: if (defined($protocol)) {
10184: if ($protocol eq 'https') {
10185: $protocol{$id} = $protocol;
10186: } else {
10187: $protocol{$id} = 'http';
10188: }
1.968 raeburn 10189: } else {
1.969 raeburn 10190: $protocol{$id} = 'http';
1.968 raeburn 10191: }
1.1074 raeburn 10192: if (defined($intdom)) {
10193: $internetdom{$id} = $intdom;
10194: }
1.852 albertel 10195: }
10196: }
10197: }
1.864 albertel 10198:
10199: sub reset_hosts_info {
1.897 albertel 10200: &purge_remembered();
1.864 albertel 10201: &reset_domain_info();
10202: &reset_hosts_ip_info();
1.892 albertel 10203: undef(%name_to_host);
1.864 albertel 10204: undef(%hostname);
10205: undef(%hostdom);
10206: undef(%libserv);
10207: undef($loaded);
10208: }
1.1 albertel 10209:
1.852 albertel 10210: sub load_hosts_tab {
1.869 albertel 10211: my ($ignore_cache) = @_;
10212: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 10213: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
10214: my @config = <$config>;
10215: &parse_hosts_tab(\@config);
10216: close($config);
10217: $loaded=1;
1.1 albertel 10218: }
1.852 albertel 10219:
1.838 albertel 10220: sub hostname {
1.852 albertel 10221: &load_hosts_tab() if (!$loaded);
10222:
1.838 albertel 10223: my ($lonid) = @_;
10224: return $hostname{$lonid};
10225: }
1.845 albertel 10226:
1.838 albertel 10227: sub all_hostnames {
1.852 albertel 10228: &load_hosts_tab() if (!$loaded);
10229:
1.838 albertel 10230: return %hostname;
10231: }
1.845 albertel 10232:
1.888 albertel 10233: sub all_names {
10234: &load_hosts_tab() if (!$loaded);
10235:
10236: return %name_to_host;
10237: }
10238:
1.974 raeburn 10239: sub all_host_domain {
10240: &load_hosts_tab() if (!$loaded);
10241: return %hostdom;
10242: }
10243:
1.845 albertel 10244: sub is_library {
1.852 albertel 10245: &load_hosts_tab() if (!$loaded);
10246:
1.845 albertel 10247: return exists($libserv{$_[0]});
10248: }
10249:
10250: sub all_library {
1.852 albertel 10251: &load_hosts_tab() if (!$loaded);
10252:
1.845 albertel 10253: return %libserv;
10254: }
10255:
1.1062 droeschl 10256: sub unique_library {
10257: #2x reverse removes all hostnames that appear more than once
10258: my %unique = reverse &all_library();
10259: return reverse %unique;
10260: }
10261:
1.841 albertel 10262: sub get_servers {
1.852 albertel 10263: &load_hosts_tab() if (!$loaded);
10264:
1.841 albertel 10265: my ($domain,$type) = @_;
10266: my %possible_hosts = ($type eq 'library') ? %libserv
10267: : %hostname;
10268: my %result;
1.842 albertel 10269: if (ref($domain) eq 'ARRAY') {
10270: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 10271: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 10272: $result{$host} = $hostname;
10273: }
10274: }
10275: } else {
10276: while ( my ($host,$hostname) = each(%possible_hosts)) {
10277: if ($hostdom{$host} eq $domain) {
10278: $result{$host} = $hostname;
10279: }
1.841 albertel 10280: }
10281: }
10282: return %result;
10283: }
1.845 albertel 10284:
1.1062 droeschl 10285: sub get_unique_servers {
10286: my %unique = reverse &get_servers(@_);
10287: return reverse %unique;
10288: }
10289:
1.844 albertel 10290: sub host_domain {
1.852 albertel 10291: &load_hosts_tab() if (!$loaded);
10292:
1.844 albertel 10293: my ($lonid) = @_;
10294: return $hostdom{$lonid};
10295: }
10296:
1.841 albertel 10297: sub all_domains {
1.852 albertel 10298: &load_hosts_tab() if (!$loaded);
10299:
1.841 albertel 10300: my %seen;
10301: my @uniq = grep(!$seen{$_}++, values(%hostdom));
10302: return @uniq;
10303: }
1.1074 raeburn 10304:
10305: sub internet_dom {
10306: &load_hosts_tab() if (!$loaded);
10307:
10308: my ($lonid) = @_;
10309: return $internetdom{$lonid};
10310: }
1.1107 raeburn 10311:
10312: sub is_LC_dns {
10313: &load_hosts_tab() if (!$loaded);
10314:
10315: my ($hostname) = @_;
10316: return exists($LC_dns_serv{$hostname});
10317: }
10318:
1.1 albertel 10319: }
10320:
1.847 albertel 10321: {
10322: my %iphost;
1.856 albertel 10323: my %name_to_ip;
10324: my %lonid_to_ip;
1.869 albertel 10325:
1.847 albertel 10326: sub get_hosts_from_ip {
10327: my ($ip) = @_;
10328: my %iphosts = &get_iphost();
10329: if (ref($iphosts{$ip})) {
10330: return @{$iphosts{$ip}};
10331: }
10332: return;
1.839 albertel 10333: }
1.864 albertel 10334:
10335: sub reset_hosts_ip_info {
10336: undef(%iphost);
10337: undef(%name_to_ip);
10338: undef(%lonid_to_ip);
10339: }
1.856 albertel 10340:
10341: sub get_host_ip {
10342: my ($lonid) = @_;
10343: if (exists($lonid_to_ip{$lonid})) {
10344: return $lonid_to_ip{$lonid};
10345: }
10346: my $name=&hostname($lonid);
10347: my $ip = gethostbyname($name);
10348: return if (!$ip || length($ip) ne 4);
10349: $ip=inet_ntoa($ip);
10350: $name_to_ip{$name} = $ip;
10351: $lonid_to_ip{$lonid} = $ip;
10352: return $ip;
10353: }
1.847 albertel 10354:
10355: sub get_iphost {
1.869 albertel 10356: my ($ignore_cache) = @_;
1.894 albertel 10357:
1.869 albertel 10358: if (!$ignore_cache) {
10359: if (%iphost) {
10360: return %iphost;
10361: }
10362: my ($ip_info,$cached)=
10363: &Apache::lonnet::is_cached_new('iphost','iphost');
10364: if ($cached) {
10365: %iphost = %{$ip_info->[0]};
10366: %name_to_ip = %{$ip_info->[1]};
10367: %lonid_to_ip = %{$ip_info->[2]};
10368: return %iphost;
10369: }
10370: }
1.894 albertel 10371:
10372: # get yesterday's info for fallback
10373: my %old_name_to_ip;
10374: my ($ip_info,$cached)=
10375: &Apache::lonnet::is_cached_new('iphost','iphost');
10376: if ($cached) {
10377: %old_name_to_ip = %{$ip_info->[1]};
10378: }
10379:
1.888 albertel 10380: my %name_to_host = &all_names();
10381: foreach my $name (keys(%name_to_host)) {
1.847 albertel 10382: my $ip;
10383: if (!exists($name_to_ip{$name})) {
10384: $ip = gethostbyname($name);
10385: if (!$ip || length($ip) ne 4) {
1.894 albertel 10386: if (defined($old_name_to_ip{$name})) {
10387: $ip = $old_name_to_ip{$name};
10388: &logthis("Can't find $name defaulting to old $ip");
10389: } else {
10390: &logthis("Name $name no IP found");
10391: next;
10392: }
10393: } else {
10394: $ip=inet_ntoa($ip);
1.847 albertel 10395: }
10396: $name_to_ip{$name} = $ip;
10397: } else {
10398: $ip = $name_to_ip{$name};
1.653 albertel 10399: }
1.888 albertel 10400: foreach my $id (@{ $name_to_host{$name} }) {
10401: $lonid_to_ip{$id} = $ip;
10402: }
10403: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 10404: }
1.869 albertel 10405: &Apache::lonnet::do_cache_new('iphost','iphost',
10406: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 10407: 48*60*60);
1.869 albertel 10408:
1.847 albertel 10409: return %iphost;
1.598 albertel 10410: }
10411:
1.992 raeburn 10412: #
10413: # Given a DNS returns the loncapa host name for that DNS
10414: #
10415: sub host_from_dns {
10416: my ($dns) = @_;
10417: my @hosts;
10418: my $ip;
10419:
1.993 raeburn 10420: if (exists($name_to_ip{$dns})) {
1.992 raeburn 10421: $ip = $name_to_ip{$dns};
10422: }
10423: if (!$ip) {
10424: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
10425: if (length($ip) == 4) {
10426: $ip = &IO::Socket::inet_ntoa($ip);
10427: }
10428: }
10429: if ($ip) {
10430: @hosts = get_hosts_from_ip($ip);
10431: return $hosts[0];
10432: }
10433: return undef;
1.986 foxr 10434: }
1.992 raeburn 10435:
1.1074 raeburn 10436: sub get_internet_names {
10437: my ($lonid) = @_;
10438: return if ($lonid eq '');
10439: my ($idnref,$cached)=
10440: &Apache::lonnet::is_cached_new('internetnames',$lonid);
10441: if ($cached) {
10442: return $idnref;
10443: }
10444: my $ip = &get_host_ip($lonid);
10445: my @hosts = &get_hosts_from_ip($ip);
10446: my %iphost = &get_iphost();
10447: my (@idns,%seen);
10448: foreach my $id (@hosts) {
10449: my $dom = &host_domain($id);
10450: my $prim_id = &domain($dom,'primary');
10451: my $prim_ip = &get_host_ip($prim_id);
10452: next if ($seen{$prim_ip});
10453: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
10454: foreach my $id (@{$iphost{$prim_ip}}) {
10455: my $intdom = &internet_dom($id);
10456: unless (grep(/^\Q$intdom\E$/,@idns)) {
10457: push(@idns,$intdom);
10458: }
10459: }
10460: }
10461: $seen{$prim_ip} = 1;
10462: }
10463: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
10464: }
10465:
1.986 foxr 10466: }
10467:
1.1079 raeburn 10468: sub all_loncaparevs {
10469: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
10470: }
10471:
1.862 albertel 10472: BEGIN {
10473:
10474: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
10475: unless ($readit) {
10476: {
10477: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
10478: %perlvar = (%perlvar,%{$configvars});
10479: }
10480:
10481:
1.1 albertel 10482: # ------------------------------------------------------ Read spare server file
10483: {
1.448 albertel 10484: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 10485:
10486: while (my $configline=<$config>) {
10487: chomp($configline);
1.284 matthew 10488: if ($configline) {
1.784 albertel 10489: my ($host,$type) = split(':',$configline,2);
1.785 albertel 10490: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 10491: push(@{ $spareid{$type} }, $host);
1.1 albertel 10492: }
10493: }
1.448 albertel 10494: close($config);
1.1 albertel 10495: }
1.11 www 10496: # ------------------------------------------------------------ Read permissions
10497: {
1.448 albertel 10498: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 10499:
10500: while (my $configline=<$config>) {
1.448 albertel 10501: chomp($configline);
10502: if ($configline) {
10503: my ($role,$perm)=split(/ /,$configline);
10504: if ($perm ne '') { $pr{$role}=$perm; }
10505: }
1.11 www 10506: }
1.448 albertel 10507: close($config);
1.11 www 10508: }
10509:
10510: # -------------------------------------------- Read plain texts for permissions
10511: {
1.448 albertel 10512: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 10513:
10514: while (my $configline=<$config>) {
1.448 albertel 10515: chomp($configline);
10516: if ($configline) {
1.742 raeburn 10517: my ($short,@plain)=split(/:/,$configline);
10518: %{$prp{$short}} = ();
10519: if (@plain > 0) {
10520: $prp{$short}{'std'} = $plain[0];
10521: for (my $i=1; $i<@plain; $i++) {
10522: $prp{$short}{'alt'.$i} = $plain[$i];
10523: }
10524: }
1.448 albertel 10525: }
1.135 www 10526: }
1.448 albertel 10527: close($config);
1.135 www 10528: }
10529:
10530: # ---------------------------------------------------------- Read package table
10531: {
1.448 albertel 10532: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 10533:
10534: while (my $configline=<$config>) {
1.483 albertel 10535: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 10536: chomp($configline);
10537: my ($short,$plain)=split(/:/,$configline);
10538: my ($pack,$name)=split(/\&/,$short);
10539: if ($plain ne '') {
10540: $packagetab{$pack.'&'.$name.'&name'}=$name;
10541: $packagetab{$short}=$plain;
10542: }
1.11 www 10543: }
1.448 albertel 10544: close($config);
1.329 matthew 10545: }
10546:
1.1073 raeburn 10547: # ---------------------------------------------------------- Read loncaparev table
10548: {
10549: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
10550: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
10551: while (my $configline=<$config>) {
10552: chomp($configline);
10553: my ($hostid,$loncaparev)=split(/:/,$configline);
10554: $loncaparevs{$hostid}=$loncaparev;
10555: }
10556: close($config);
10557: }
10558: }
10559: }
10560:
1.1074 raeburn 10561: # ---------------------------------------------------------- Read serverhostID table
10562: {
10563: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
10564: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
10565: while (my $configline=<$config>) {
10566: chomp($configline);
10567: my ($name,$id)=split(/:/,$configline);
10568: $serverhomeIDs{$name}=$id;
10569: }
10570: close($config);
10571: }
10572: }
10573: }
10574:
1.1079 raeburn 10575: {
10576: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
10577: if (-e $file) {
10578: my $parser = HTML::LCParser->new($file);
10579: while (my $token = $parser->get_token()) {
10580: if ($token->[0] eq 'S') {
10581: my $item = $token->[1];
10582: my $name = $token->[2]{'name'};
10583: my $value = $token->[2]{'value'};
10584: if ($item ne '' && $name ne '' && $value ne '') {
10585: my $release = $parser->get_text();
10586: $release =~ s/(^\s*|\s*$ )//gx;
10587: $needsrelease{$item.':'.$name.':'.$value} = $release;
10588: }
10589: }
10590: }
10591: }
1.1073 raeburn 10592: }
10593:
1.329 matthew 10594: # ------------- set up temporary directory
10595: {
1.1117 foxr 10596: $tmpdir = LONCAPA::tempdir();
1.329 matthew 10597:
1.11 www 10598: }
10599:
1.794 albertel 10600: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
10601: 'compress_threshold'=> 20_000,
10602: });
1.185 www 10603:
1.281 www 10604: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 10605: $dumpcount=0;
1.958 www 10606: $locknum=0;
1.22 www 10607:
1.163 harris41 10608: &logtouch();
1.672 albertel 10609: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 10610: $readit=1;
1.564 albertel 10611: {
10612: use integer;
10613: my $test=(2**32)+1;
1.568 albertel 10614: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 10615: &logthis(" Detected 64bit platform ($_64bit)");
10616: }
1.195 www 10617: }
1.1 albertel 10618: }
1.179 www 10619:
1.1 albertel 10620: 1;
1.191 harris41 10621: __END__
10622:
1.243 albertel 10623: =pod
10624:
1.191 harris41 10625: =head1 NAME
10626:
1.243 albertel 10627: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 10628:
10629: =head1 SYNOPSIS
10630:
1.243 albertel 10631: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 10632:
10633: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
10634:
1.243 albertel 10635: Common parameters:
10636:
10637: =over 4
10638:
10639: =item *
10640:
10641: $uname : an internal username (if $cname expecting a course Id specifically)
10642:
10643: =item *
10644:
10645: $udom : a domain (if $cdom expecting a course's domain specifically)
10646:
10647: =item *
10648:
10649: $symb : a resource instance identifier
10650:
10651: =item *
10652:
10653: $namespace : the name of a .db file that contains the data needed or
10654: being set.
10655:
10656: =back
10657:
1.394 bowersj2 10658: =head1 OVERVIEW
1.191 harris41 10659:
1.394 bowersj2 10660: lonnet provides subroutines which interact with the
10661: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
10662: about classes, users, and resources.
1.243 albertel 10663:
10664: For many of these objects you can also use this to store data about
10665: them or modify them in various ways.
1.191 harris41 10666:
1.394 bowersj2 10667: =head2 Symbs
1.191 harris41 10668:
1.394 bowersj2 10669: To identify a specific instance of a resource, LON-CAPA uses symbols
10670: or "symbs"X<symb>. These identifiers are built from the URL of the
10671: map, the resource number of the resource in the map, and the URL of
10672: the resource itself. The latter is somewhat redundant, but might help
10673: if maps change.
10674:
10675: An example is
10676:
10677: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
10678:
10679: The respective map entry is
10680:
10681: <resource id="19" src="/res/msu/korte/tests/part12.problem"
10682: title="Problem 2">
10683: </resource>
10684:
10685: Symbs are used by the random number generator, as well as to store and
10686: restore data specific to a certain instance of for example a problem.
10687:
10688: =head2 Storing And Retrieving Data
10689:
10690: X<store()>X<cstore()>X<restore()>Three of the most important functions
10691: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
10692: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
10693: is is the non-critical message twin of cstore. These functions are for
10694: handlers to store a perl hash to a user's permanent data space in an
10695: easy manner, and to retrieve it again on another call. It is expected
10696: that a handler would use this once at the beginning to retrieve data,
10697: and then again once at the end to send only the new data back.
10698:
10699: The data is stored in the user's data directory on the user's
10700: homeserver under the ID of the course.
10701:
10702: The hash that is returned by restore will have all of the previous
10703: value for all of the elements of the hash.
10704:
10705: Example:
10706:
10707: #creating a hash
10708: my %hash;
10709: $hash{'foo'}='bar';
10710:
10711: #storing it
10712: &Apache::lonnet::cstore(\%hash);
10713:
10714: #changing a value
10715: $hash{'foo'}='notbar';
10716:
10717: #adding a new value
10718: $hash{'bar'}='foo';
10719: &Apache::lonnet::cstore(\%hash);
10720:
10721: #retrieving the hash
10722: my %history=&Apache::lonnet::restore();
10723:
10724: #print the hash
10725: foreach my $key (sort(keys(%history))) {
10726: print("\%history{$key} = $history{$key}");
10727: }
10728:
10729: Will print out:
1.191 harris41 10730:
1.394 bowersj2 10731: %history{1:foo} = bar
10732: %history{1:keys} = foo:timestamp
10733: %history{1:timestamp} = 990455579
10734: %history{2:bar} = foo
10735: %history{2:foo} = notbar
10736: %history{2:keys} = foo:bar:timestamp
10737: %history{2:timestamp} = 990455580
10738: %history{bar} = foo
10739: %history{foo} = notbar
10740: %history{timestamp} = 990455580
10741: %history{version} = 2
10742:
10743: Note that the special hash entries C<keys>, C<version> and
10744: C<timestamp> were added to the hash. C<version> will be equal to the
10745: total number of versions of the data that have been stored. The
10746: C<timestamp> attribute will be the UNIX time the hash was
10747: stored. C<keys> is available in every historical section to list which
10748: keys were added or changed at a specific historical revision of a
10749: hash.
10750:
10751: B<Warning>: do not store the hash that restore returns directly. This
10752: will cause a mess since it will restore the historical keys as if the
10753: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 10754:
1.394 bowersj2 10755: Calling convention:
1.191 harris41 10756:
1.394 bowersj2 10757: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
10758: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 10759:
1.394 bowersj2 10760: For more detailed information, see lonnet specific documentation.
1.191 harris41 10761:
1.394 bowersj2 10762: =head1 RETURN MESSAGES
1.191 harris41 10763:
1.394 bowersj2 10764: =over 4
1.191 harris41 10765:
1.394 bowersj2 10766: =item * B<con_lost>: unable to contact remote host
1.191 harris41 10767:
1.394 bowersj2 10768: =item * B<con_delayed>: unable to contact remote host, message will be delivered
10769: when the connection is brought back up
1.191 harris41 10770:
1.394 bowersj2 10771: =item * B<con_failed>: unable to contact remote host and unable to save message
10772: for later delivery
1.191 harris41 10773:
1.967 bisitz 10774: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 10775:
1.394 bowersj2 10776: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 10777: that was requested
1.191 harris41 10778:
1.243 albertel 10779: =back
1.191 harris41 10780:
1.243 albertel 10781: =head1 PUBLIC SUBROUTINES
1.191 harris41 10782:
1.243 albertel 10783: =head2 Session Environment Functions
1.191 harris41 10784:
1.243 albertel 10785: =over 4
1.191 harris41 10786:
1.394 bowersj2 10787: =item *
10788: X<appenv()>
1.949 raeburn 10789: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 10790: the user envirnoment file, and will be restored for each access this
1.620 albertel 10791: user makes during this session, also modifies the %env for the current
1.949 raeburn 10792: process. Optional rolesarrayref - if defined contains a reference to an array
10793: of roles which are exempt from the restriction on modifying user.role entries
10794: in the user's environment.db and in %env.
1.191 harris41 10795:
10796: =item *
1.394 bowersj2 10797: X<delenv()>
1.987 raeburn 10798: B<delenv($delthis,$regexp)>: removes all items from the session
10799: environment file that begin with $delthis. If the
10800: optional second arg - $regexp - is true, $delthis is treated as a
10801: regular expression, otherwise \Q$delthis\E is used.
10802: The values are also deleted from the current processes %env.
1.191 harris41 10803:
1.795 albertel 10804: =item * get_env_multiple($name)
10805:
10806: gets $name from the %env hash, it seemlessly handles the cases where multiple
10807: values may be defined and end up as an array ref.
10808:
10809: returns an array of values
10810:
1.243 albertel 10811: =back
10812:
10813: =head2 User Information
1.191 harris41 10814:
1.243 albertel 10815: =over 4
1.191 harris41 10816:
10817: =item *
1.394 bowersj2 10818: X<queryauthenticate()>
10819: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 10820: authentication scheme
10821:
10822: =item *
1.394 bowersj2 10823: X<authenticate()>
1.1073 raeburn 10824: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 10825: authenticate user from domain's lib servers (first use the current
10826: one). C<$upass> should be the users password.
1.1073 raeburn 10827: $checkdefauth is optional (value is 1 if a check should be made to
10828: authenticate user using default authentication method, and allow
10829: account creation if username does not have account in the domain).
10830: $clientcancheckhost is optional (value is 1 if checking whether the
10831: server can host will occur on the client side in lonauth.pm).
1.191 harris41 10832:
10833: =item *
1.394 bowersj2 10834: X<homeserver()>
10835: B<homeserver($uname,$udom)>: find the server which has
10836: the user's directory and files (there must be only one), this caches
10837: the answer, and also caches if there is a borken connection.
1.191 harris41 10838:
10839: =item *
1.394 bowersj2 10840: X<idget()>
10841: B<idget($udom,@ids)>: find the usernames behind a list of IDs
10842: (IDs are a unique resource in a domain, there must be only 1 ID per
10843: username, and only 1 username per ID in a specific domain) (returns
10844: hash: id=>name,id=>name)
1.191 harris41 10845:
10846: =item *
1.394 bowersj2 10847: X<idrget()>
10848: B<idrget($udom,@unames)>: find the IDs behind a list of
10849: usernames (returns hash: name=>id,name=>id)
1.191 harris41 10850:
10851: =item *
1.394 bowersj2 10852: X<idput()>
10853: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 10854:
10855: =item *
1.394 bowersj2 10856: X<rolesinit()>
10857: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 10858:
10859: =item *
1.551 albertel 10860: X<getsection()>
10861: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 10862: course $cname, return section name/number or '' for "not in course"
10863: and '-1' for "no section"
10864:
10865: =item *
1.394 bowersj2 10866: X<userenvironment()>
10867: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 10868: passed in @what from the requested user's environment, returns a hash
10869:
1.858 raeburn 10870: =item *
10871: X<userlog_query()>
1.859 albertel 10872: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
10873: activity.log file. %filters defines filters applied when parsing the
10874: log file. These can be start or end timestamps, or the type of action
10875: - log to look for Login or Logout events, check for Checkin or
10876: Checkout, role for role selection. The response is in the form
10877: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
10878: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 10879:
1.243 albertel 10880: =back
10881:
10882: =head2 User Roles
10883:
10884: =over 4
10885:
10886: =item *
10887:
1.810 raeburn 10888: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 10889: F: full access
10890: U,I,K: authentication modes (cxx only)
10891: '': forbidden
10892: 1: user needs to choose course
10893: 2: browse allowed
1.766 albertel 10894: A: passphrase authentication needed
1.243 albertel 10895:
10896: =item *
10897:
10898: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
10899: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
10900: and course level
10901:
10902: =item *
10903:
1.988 raeburn 10904: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
10905: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 10906: $type is Course (default) or Community.
1.988 raeburn 10907: If $forcedefault evaluates to true, text returned will be default
10908: text for $type. Otherwise, if this is a course, the text returned
10909: will be a custom name for the role (if defined in the course's
10910: environment). If no custom name is defined the default is returned.
10911:
1.832 raeburn 10912: =item *
10913:
1.935 raeburn 10914: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 10915: All arguments are optional. Returns a hash of a roles, either for
10916: co-author/assistant author roles for a user's Construction Space
1.906 albertel 10917: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 10918: In the hash, keys are set to colon-separated $uname,$udom,$role, and
10919: (optionally) if $withsec is true, a fourth colon-separated item - $section.
10920: For each key, value is set to colon-separated start and end times for
10921: the role. If no username and domain are specified, will default to
1.934 raeburn 10922: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 10923: of role statuses (active, future or previous), roles
10924: (e.g., cc,in, st etc.) and domains of the roles which can be used
10925: to restrict the list of roles reported. If no array ref is
10926: provided for types, will default to return only active roles.
1.834 albertel 10927:
1.243 albertel 10928: =back
10929:
10930: =head2 User Modification
10931:
10932: =over 4
10933:
10934: =item *
10935:
1.957 raeburn 10936: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 10937: user for the level given by URL. Optional start and end dates (leave empty
10938: string or zero for "no date")
1.191 harris41 10939:
10940: =item *
10941:
1.243 albertel 10942: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
10943: change a users, password, possible return values are: ok,
10944: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
10945: refused
1.191 harris41 10946:
10947: =item *
10948:
1.243 albertel 10949: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 10950:
10951: =item *
10952:
1.1058 raeburn 10953: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
10954: $forceid,$desiredhome,$email,$inststatus,$candelete) :
10955:
10956: will update user information (firstname,middlename,lastname,generation,
10957: permanentemail), and if forceid is true, student/employee ID also.
10958: A user's institutional affiliation(s) can also be updated.
10959: User information fields will not be overwritten with empty entries
10960: unless the field is included in the $candelete array reference.
10961: This array is included when a single user is modified via "Manage Users",
10962: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 10963:
10964: =item *
10965:
1.286 matthew 10966: modifystudent
10967:
1.957 raeburn 10968: modify a student's enrollment and identification information.
1.286 matthew 10969: The course id is resolved based on the current users environment.
10970: This means the envoking user must be a course coordinator or otherwise
10971: associated with a course.
10972:
1.297 matthew 10973: This call is essentially a wrapper for lonnet::modifyuser and
10974: lonnet::modify_student_enrollment
1.286 matthew 10975:
10976: Inputs:
10977:
10978: =over 4
10979:
1.957 raeburn 10980: =item B<$udom> Student's loncapa domain
1.286 matthew 10981:
1.957 raeburn 10982: =item B<$uname> Student's loncapa login name
1.286 matthew 10983:
1.964 bisitz 10984: =item B<$uid> Student/Employee ID
1.286 matthew 10985:
1.957 raeburn 10986: =item B<$umode> Student's authentication mode
1.286 matthew 10987:
1.957 raeburn 10988: =item B<$upass> Student's password
1.286 matthew 10989:
1.957 raeburn 10990: =item B<$first> Student's first name
1.286 matthew 10991:
1.957 raeburn 10992: =item B<$middle> Student's middle name
1.286 matthew 10993:
1.957 raeburn 10994: =item B<$last> Student's last name
1.286 matthew 10995:
1.957 raeburn 10996: =item B<$gene> Student's generation
1.286 matthew 10997:
1.957 raeburn 10998: =item B<$usec> Student's section in course
1.286 matthew 10999:
11000: =item B<$end> Unix time of the roles expiration
11001:
11002: =item B<$start> Unix time of the roles start date
11003:
11004: =item B<$forceid> If defined, allow $uid to be changed
11005:
11006: =item B<$desiredhome> server to use as home server for student
11007:
1.957 raeburn 11008: =item B<$email> Student's permanent e-mail address
11009:
11010: =item B<$type> Type of enrollment (auto or manual)
11011:
1.963 raeburn 11012: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
11013:
11014: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 11015:
1.963 raeburn 11016: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 11017:
1.963 raeburn 11018: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 11019:
1.963 raeburn 11020: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 11021:
1.286 matthew 11022: =back
1.297 matthew 11023:
11024: =item *
11025:
11026: modify_student_enrollment
11027:
11028: Change a students enrollment status in a class. The environment variable
11029: 'role.request.course' must be defined for this function to proceed.
11030:
11031: Inputs:
11032:
11033: =over 4
11034:
11035: =item $udom, students domain
11036:
11037: =item $uname, students name
11038:
11039: =item $uid, students user id
11040:
11041: =item $first, students first name
11042:
11043: =item $middle
11044:
11045: =item $last
11046:
11047: =item $gene
11048:
11049: =item $usec
11050:
11051: =item $end
11052:
11053: =item $start
11054:
1.957 raeburn 11055: =item $type
11056:
11057: =item $locktype
11058:
11059: =item $cid
11060:
11061: =item $selfenroll
11062:
11063: =item $context
11064:
1.297 matthew 11065: =back
11066:
1.191 harris41 11067:
11068: =item *
11069:
1.243 albertel 11070: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
11071: custom role; give a custom role to a user for the level given by URL. Specify
11072: name and domain of role author, and role name
1.191 harris41 11073:
11074: =item *
11075:
1.243 albertel 11076: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 11077:
11078: =item *
11079:
1.243 albertel 11080: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
11081:
11082: =back
11083:
11084: =head2 Course Infomation
11085:
11086: =over 4
1.191 harris41 11087:
11088: =item *
11089:
1.1118 foxr 11090: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 11091: specified course id, including all environment settings for the
11092: course, the description of the course will be in the hash under the
11093: key 'description'
1.191 harris41 11094:
1.1118 foxr 11095: $options is an optional parameter that if supplied is a hash reference that controls
11096: what how this function works. It has the following key/values:
11097:
11098: =over 4
11099:
11100: =item freshen_cache
11101:
11102: If defined, and the environment cache for the course is valid, it is
11103: returned in the returned hash.
11104:
11105: =item one_time
11106:
11107: If defined, the last cache time is set to _now_
11108:
11109: =item user
11110:
11111: If defined, the supplied username is used instead of the current user.
11112:
11113:
11114: =back
11115:
1.191 harris41 11116: =item *
11117:
1.624 albertel 11118: resdata($name,$domain,$type,@which) : request for current parameter
11119: setting for a specific $type, where $type is either 'course' or 'user',
11120: @what should be a list of parameters to ask about. This routine caches
11121: answers for 5 minutes.
1.243 albertel 11122:
1.877 foxr 11123: =item *
11124:
11125: get_courseresdata($courseid, $domain) : dump the entire course resource
11126: data base, returning a hash that is keyed by the resource name and has
11127: values that are the resource value. I believe that the timestamps and
11128: versions are also returned.
11129:
11130:
1.243 albertel 11131: =back
11132:
11133: =head2 Course Modification
11134:
11135: =over 4
1.191 harris41 11136:
11137: =item *
11138:
1.243 albertel 11139: writecoursepref($courseid,%prefs) : write preferences (environment
11140: database) for a course
1.191 harris41 11141:
11142: =item *
11143:
1.1011 raeburn 11144: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
11145:
11146: =item *
11147:
1.1038 raeburn 11148: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 11149:
11150: =back
11151:
11152: =head2 Resource Subroutines
11153:
11154: =over 4
1.191 harris41 11155:
11156: =item *
11157:
1.243 albertel 11158: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 11159:
11160: =item *
11161:
1.243 albertel 11162: repcopy($filename) : subscribes to the requested file, and attempts to
11163: replicate from the owning library server, Might return
1.607 raeburn 11164: 'unavailable', 'not_found', 'forbidden', 'ok', or
11165: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 11166: resource. Expects the local filesystem pathname
11167: (/home/httpd/html/res/....)
11168:
11169: =back
11170:
11171: =head2 Resource Information
11172:
11173: =over 4
1.191 harris41 11174:
11175: =item *
11176:
1.243 albertel 11177: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
11178: a vairety of different possible values, $varname should be a request
11179: string, and the other parameters can be used to specify who and what
11180: one is asking about.
11181:
11182: Possible values for $varname are environment.lastname (or other item
11183: from the envirnment hash), user.name (or someother aspect about the
11184: user), resource.0.maxtries (or some other part and parameter of a
11185: resource)
1.204 albertel 11186:
11187: =item *
11188:
1.243 albertel 11189: directcondval($number) : get current value of a condition; reads from a state
11190: string
1.204 albertel 11191:
11192: =item *
11193:
1.243 albertel 11194: condval($condidx) : value of condition index based on state
1.204 albertel 11195:
11196: =item *
11197:
1.243 albertel 11198: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
11199: resource's metadata, $what should be either a specific key, or either
11200: 'keys' (to get a list of possible keys) or 'packages' to get a list of
11201: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
11202:
11203: this function automatically caches all requests
1.191 harris41 11204:
11205: =item *
11206:
1.243 albertel 11207: metadata_query($query,$custom,$customshow) : make a metadata query against the
11208: network of library servers; returns file handle of where SQL and regex results
11209: will be stored for query
1.191 harris41 11210:
11211: =item *
11212:
1.243 albertel 11213: symbread($filename) : return symbolic list entry (filename argument optional);
11214: returns the data handle
1.191 harris41 11215:
11216: =item *
11217:
1.243 albertel 11218: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 11219: a possible symb for the URL in $thisfn, and if is an encryypted
11220: resource that the user accessed using /enc/ returns a 1 on success, 0
11221: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 11222: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 11223:
1.191 harris41 11224:
11225: =item *
11226:
1.243 albertel 11227: symbclean($symb) : removes versions numbers from a symb, returns the
11228: cleaned symb
1.191 harris41 11229:
11230: =item *
11231:
1.243 albertel 11232: is_on_map($uri) : checks if the $uri is somewhere on the current
11233: course map, user must be in a course for it to work.
1.191 harris41 11234:
11235: =item *
11236:
1.243 albertel 11237: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 11238:
11239: =item *
11240:
1.243 albertel 11241: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
11242: a random seed, all arguments are optional, if they aren't sent it uses the
11243: environment to derive them. Note: if symb isn't sent and it can't get one
11244: from &symbread it will use the current time as its return value
1.191 harris41 11245:
11246: =item *
11247:
1.243 albertel 11248: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
11249: unfakeable, receipt
1.191 harris41 11250:
11251: =item *
11252:
1.620 albertel 11253: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 11254:
11255: =item *
11256:
1.243 albertel 11257: countacc($url) : count the number of accesses to a given URL
1.191 harris41 11258:
11259: =item *
11260:
1.243 albertel 11261: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 11262:
11263: =item *
11264:
1.243 albertel 11265: checkin($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 $tcrsid)
1.191 harris41 11266:
11267: =item *
11268:
1.243 albertel 11269: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 11270:
11271: =item *
11272:
1.243 albertel 11273: devalidate($symb) : devalidate temporary spreadsheet calculations,
11274: forcing spreadsheet to reevaluate the resource scores next time.
11275:
11276: =back
11277:
11278: =head2 Storing/Retreiving Data
11279:
11280: =over 4
1.191 harris41 11281:
11282: =item *
11283:
1.243 albertel 11284: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
11285: for this url; hashref needs to be given and should be a \%hashname; the
11286: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 11287: be derived from the env
1.191 harris41 11288:
11289: =item *
11290:
1.243 albertel 11291: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
11292: uses critical subroutine
1.191 harris41 11293:
11294: =item *
11295:
1.243 albertel 11296: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
11297: all args are optional
1.191 harris41 11298:
11299: =item *
11300:
1.717 albertel 11301: dumpstore($namespace,$udom,$uname,$regexp,$range) :
11302: dumps the complete (or key matching regexp) namespace into a hash
11303: ($udom, $uname, $regexp, $range are optional) for a namespace that is
11304: normally &store()ed into
11305:
11306: $range should be either an integer '100' (give me the first 100
11307: matching records)
11308: or be two integers sperated by a - with no spaces
11309: '30-50' (give me the 30th through the 50th matching
11310: records)
11311:
11312:
11313: =item *
11314:
11315: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
11316: replaces a &store() version of data with a replacement set of data
11317: for a particular resource in a namespace passed in the $storehash hash
11318: reference
11319:
11320: =item *
11321:
1.243 albertel 11322: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
11323: works very similar to store/cstore, but all data is stored in a
11324: temporary location and can be reset using tmpreset, $storehash should
11325: be a hash reference, returns nothing on success
1.191 harris41 11326:
11327: =item *
11328:
1.243 albertel 11329: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
11330: similar to restore, but all data is stored in a temporary location and
11331: can be reset using tmpreset. Returns a hash of values on success,
11332: error string otherwise.
1.191 harris41 11333:
11334: =item *
11335:
1.243 albertel 11336: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
11337: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 11338:
11339: =item *
11340:
1.243 albertel 11341: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
11342: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 11343:
11344: =item *
11345:
1.243 albertel 11346: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
11347: namesp ($udom and $uname are optional)
1.191 harris41 11348:
11349: =item *
11350:
1.702 albertel 11351: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 11352: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 11353: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 11354:
1.702 albertel 11355: $range should be either an integer '100' (give me the first 100
11356: matching records)
11357: or be two integers sperated by a - with no spaces
11358: '30-50' (give me the 30th through the 50th matching
11359: records)
1.449 matthew 11360: =item *
11361:
11362: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
11363: $store can be a scalar, an array reference, or if the amount to be
11364: incremented is > 1, a hash reference.
11365:
11366: ($udom and $uname are optional)
1.191 harris41 11367:
11368: =item *
11369:
1.243 albertel 11370: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
11371: ($udom and $uname are optional)
1.191 harris41 11372:
11373: =item *
11374:
1.243 albertel 11375: cput($namespace,$storehash,$udom,$uname) : critical put
11376: ($udom and $uname are optional)
1.191 harris41 11377:
11378: =item *
11379:
1.748 albertel 11380: newput($namespace,$storehash,$udom,$uname) :
11381:
11382: Attempts to store the items in the $storehash, but only if they don't
11383: currently exist, if this succeeds you can be certain that you have
11384: successfully created a new key value pair in the $namespace db.
11385:
11386:
11387: Args:
11388: $namespace: name of database to store values to
11389: $storehash: hashref to store to the db
11390: $udom: (optional) domain of user containing the db
11391: $uname: (optional) name of user caontaining the db
11392:
11393: Returns:
11394: 'ok' -> succeeded in storing all keys of $storehash
11395: 'key_exists: <key>' -> failed to anything out of $storehash, as at
11396: least <key> already existed in the db (other
11397: requested keys may also already exist)
1.967 bisitz 11398: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 11399: 'con_lost' -> unable to contact request server
11400: 'refused' -> action was not allowed by remote machine
11401:
11402:
11403: =item *
11404:
1.243 albertel 11405: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
11406: reference filled in from namesp (encrypts the return communication)
11407: ($udom and $uname are optional)
1.191 harris41 11408:
11409: =item *
11410:
1.243 albertel 11411: log($udom,$name,$home,$message) : write to permanent log for user; use
11412: critical subroutine
11413:
1.806 raeburn 11414: =item *
11415:
1.860 raeburn 11416: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
11417: array reference filled in from namespace found in domain level on either
11418: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 11419:
11420: =item *
11421:
1.860 raeburn 11422: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
11423: domain level either on specified domain server ($uhome) or primary domain
11424: server ($udom and $uhome are optional)
1.806 raeburn 11425:
1.943 raeburn 11426: =item *
11427:
11428: get_domain_defaults($target_domain) : returns hash with defaults for
11429: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
11430: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
11431: or localauth), initial password or a kerberos realm, language (e.g., en-us).
11432: Values are retrieved from cache (if current), or from domain's configuration.db
11433: (if available), or lastly from values in lonTabs/dns_domain,tab,
11434: or lonTabs/domain.tab.
11435:
11436: %domdefaults = &get_auth_defaults($target_domain);
11437:
1.243 albertel 11438: =back
11439:
11440: =head2 Network Status Functions
11441:
11442: =over 4
1.191 harris41 11443:
11444: =item *
11445:
11446: dirlist($uri) : return directory list based on URI
11447:
11448: =item *
11449:
1.243 albertel 11450: spareserver() : find server with least workload from spare.tab
11451:
1.986 foxr 11452:
11453: =item *
11454:
11455: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
11456: if there is no corresponding loncapa host.
11457:
1.243 albertel 11458: =back
11459:
1.986 foxr 11460:
1.243 albertel 11461: =head2 Apache Request
11462:
11463: =over 4
1.191 harris41 11464:
11465: =item *
11466:
1.243 albertel 11467: ssi($url,%hash) : server side include, does a complete request cycle on url to
11468: localhost, posts hash
11469:
11470: =back
11471:
11472: =head2 Data to String to Data
11473:
11474: =over 4
1.191 harris41 11475:
11476: =item *
11477:
1.243 albertel 11478: hash2str(%hash) : convert a hash into a string complete with escaping and '='
11479: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 11480:
11481: =item *
11482:
1.243 albertel 11483: hashref2str($hashref) : convert a hashref into a string complete with
11484: escaping and '=' and '&' separators, supports elements that are
11485: arrayrefs and hashrefs
1.191 harris41 11486:
11487: =item *
11488:
1.243 albertel 11489: arrayref2str($arrayref) : convert an arrayref into a string complete
11490: with escaping and '&' separators, supports elements that are arrayrefs
11491: and hashrefs
1.191 harris41 11492:
11493: =item *
11494:
1.243 albertel 11495: str2hash($string) : convert string to hash using unescaping and
11496: splitting on '=' and '&', supports elements that are arrayrefs and
11497: hashrefs
1.191 harris41 11498:
11499: =item *
11500:
1.243 albertel 11501: str2array($string) : convert string to hash using unescaping and
11502: splitting on '&', supports elements that are arrayrefs and hashrefs
11503:
11504: =back
11505:
11506: =head2 Logging Routines
11507:
11508:
11509: These routines allow one to make log messages in the lonnet.log and
11510: lonnet.perm logfiles.
1.191 harris41 11511:
1.1119 foxr 11512: =over 4
11513:
1.191 harris41 11514: =item *
11515:
1.243 albertel 11516: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 11517:
11518: =item *
11519:
1.243 albertel 11520: logthis() : append message to the normal lonnet.log file, it gets
11521: preiodically rolled over and deleted.
1.191 harris41 11522:
11523: =item *
11524:
1.243 albertel 11525: logperm() : append a permanent message to lonnet.perm.log, this log
11526: file never gets deleted by any automated portion of the system, only
11527: messages of critical importance should go in here.
11528:
1.1119 foxr 11529:
1.243 albertel 11530: =back
11531:
11532: =head2 General File Helper Routines
11533:
11534: =over 4
1.191 harris41 11535:
11536: =item *
11537:
1.481 raeburn 11538: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
11539: (a) files in /uploaded
11540: (i) If a local copy of the file exists -
11541: compares modification date of local copy with last-modified date for
11542: definitive version stored on home server for course. If local copy is
11543: stale, requests a new version from the home server and stores it.
11544: If the original has been removed from the home server, then local copy
11545: is unlinked.
11546: (ii) If local copy does not exist -
11547: requests the file from the home server and stores it.
11548:
11549: If $caller is 'uploadrep':
11550: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
11551: for request for files originally uploaded via DOCS.
11552: - returns 'ok' if fresh local copy now available, -1 otherwise.
11553:
11554: Otherwise:
11555: This indicates a call from the content generation phase of the request.
11556: - returns the entire contents of the file or -1.
11557:
11558: (b) files in /res
11559: - returns the entire contents of a file or -1;
11560: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 11561:
1.712 albertel 11562:
11563: =item *
11564:
11565: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
11566: reference
11567:
11568: returns either a stat() list of data about the file or an empty list
11569: if the file doesn't exist or couldn't find out about it (connection
11570: problems or user unknown)
11571:
1.191 harris41 11572: =item *
11573:
1.243 albertel 11574: filelocation($dir,$file) : returns file system location of a file
11575: based on URI; meant to be "fairly clean" absolute reference, $dir is a
11576: directory that relative $file lookups are to looked in ($dir of /a/dir
11577: and a file of ../bob will become /a/bob)
1.191 harris41 11578:
11579: =item *
11580:
11581: hreflocation($dir,$file) : returns file system location or a URL; same as
11582: filelocation except for hrefs
11583:
11584: =item *
11585:
11586: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
11587:
1.243 albertel 11588: =back
11589:
1.608 albertel 11590: =head2 Usererfile file routines (/uploaded*)
11591:
11592: =over 4
11593:
11594: =item *
11595:
11596: userfileupload(): main rotine for putting a file in a user or course's
11597: filespace, arguments are,
11598:
1.620 albertel 11599: formname - required - this is the name of the element in $env where the
1.608 albertel 11600: filename, and the contents of the file to create/modifed exist
1.620 albertel 11601: the filename is in $env{'form.'.$formname.'.filename'} and the
11602: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 11603: context - if coursedoc, store the file in the course of the active role
11604: of the current user;
11605: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
11606: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 11607: subdir - required - subdirectory to put the file in under ../userfiles/
11608: if undefined, it will be placed in "unknown"
11609:
11610: (This routine calls clean_filename() to remove any dangerous
11611: characters from the filename, and then calls finuserfileupload() to
11612: complete the transaction)
11613:
11614: returns either the url of the uploaded file (/uploaded/....) if successful
11615: and /adm/notfound.html if unsuccessful
11616:
11617: =item *
11618:
11619: clean_filename(): routine for cleaing a filename up for storage in
11620: userfile space, argument is:
11621:
11622: filename - proposed filename
11623:
11624: returns: the new clean filename
11625:
11626: =item *
11627:
1.1090 raeburn 11628: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 11629: userspace, probably shouldn't be called directly
11630:
11631: docuname: username or courseid of destination for the file
11632: docudom: domain of user/course of destination for the file
11633: formname: same as for userfileupload()
1.1090 raeburn 11634: fname: filename (including subdirectories) for the file
11635: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
11636: allfiles: reference to hash used to store objects found by parser
11637: codebase: reference to hash used for codebases of java objects found by parser
11638: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
11639: thumbheight: height (pixels) of thumbnail to be created for uploaded image
11640: resizewidth: width to be used to resize image using resizeImage from ImageMagick
11641: resizeheight: height to be used to resize image using resizeImage from ImageMagick
11642: context: if 'overwrite', will move the uploaded file from its temporary location to
11643: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 11644: mimetype: reference to scalar to accommodate mime type determined
11645: from File::MMagic if $parser = parse.
1.608 albertel 11646:
11647: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 11648: and /adm/notfound.html if unsuccessful (or an error message if context
11649: was 'overwrite').
11650:
1.608 albertel 11651:
11652: =item *
11653:
11654: renameuserfile(): renames an existing userfile to a new name
11655:
11656: Args:
11657: docuname: username or courseid of destination for the file
11658: docudom: domain of user/course of destination for the file
11659: old: current file name (including any subdirs under userfiles)
11660: new: desired file name (including any subdirs under userfiles)
11661:
11662: =item *
11663:
11664: mkdiruserfile(): creates a directory is a userfiles dir
11665:
11666: Args:
11667: docuname: username or courseid of destination for the file
11668: docudom: domain of user/course of destination for the file
11669: dir: dir to create (including any subdirs under userfiles)
11670:
11671: =item *
11672:
11673: removeuserfile(): removes a file that exists in userfiles
11674:
11675: Args:
11676: docuname: username or courseid of destination for the file
11677: docudom: domain of user/course of destination for the file
11678: fname: filname to delete (including any subdirs under userfiles)
11679:
11680: =item *
11681:
11682: removeuploadedurl(): convience function for removeuserfile()
11683:
11684: Args:
11685: url: a full /uploaded/... url to delete
11686:
1.747 albertel 11687: =item *
11688:
11689: get_portfile_permissions():
11690: Args:
11691: domain: domain of user or course contain the portfolio files
11692: user: name of user or num of course contain the portfolio files
11693: Returns:
11694: hashref of a dump of the proper file_permissions.db
11695:
11696:
11697: =item *
11698:
11699: get_access_controls():
11700:
11701: Args:
11702: current_permissions: the hash ref returned from get_portfile_permissions()
11703: group: (optional) the group you want the files associated with
11704: file: (optional) the file you want access info on
11705:
11706: Returns:
1.749 raeburn 11707: a hash (keys are file names) of hashes containing
11708: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
11709: values are XML containing access control settings (see below)
1.747 albertel 11710:
11711: Internal notes:
11712:
1.749 raeburn 11713: access controls are stored in file_permissions.db as key=value pairs.
11714: key -> path to file/file_name\0uniqueID:scope_end_start
11715: where scope -> public,guest,course,group,domains or users.
11716: end -> UNIX time for end of access (0 -> no end date)
11717: start -> UNIX time for start of access
11718:
11719: value -> XML description of access control
11720: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
11721: <start></start>
11722: <end></end>
11723:
11724: <password></password> for scope type = guest
11725:
11726: <domain></domain> for scope type = course or group
11727: <number></number>
11728: <roles id="">
11729: <role></role>
11730: <access></access>
11731: <section></section>
11732: <group></group>
11733: </roles>
11734:
11735: <dom></dom> for scope type = domains
11736:
11737: <users> for scope type = users
11738: <user>
11739: <uname></uname>
11740: <udom></udom>
11741: </user>
11742: </users>
11743: </scope>
11744:
11745: Access data is also aggregated for each file in an additional key=value pair:
11746: key -> path to file/file_name\0accesscontrol
11747: value -> reference to hash
11748: hash contains key = value pairs
11749: where key = uniqueID:scope_end_start
11750: value = UNIX time record was last updated
11751:
11752: Used to improve speed of look-ups of access controls for each file.
11753:
11754: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
11755:
11756: modify_access_controls():
11757:
11758: Modifies access controls for a portfolio file
11759: Args
11760: 1. file name
11761: 2. reference to hash of required changes,
11762: 3. domain
11763: 4. username
11764: where domain,username are the domain of the portfolio owner
11765: (either a user or a course)
11766:
11767: Returns:
11768: 1. result of additions or updates ('ok' or 'error', with error message).
11769: 2. result of deletions ('ok' or 'error', with error message).
11770: 3. reference to hash of any new or updated access controls.
11771: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
11772: key = integer (inbound ID)
11773: value = uniqueID
1.747 albertel 11774:
1.608 albertel 11775: =back
11776:
1.243 albertel 11777: =head2 HTTP Helper Routines
11778:
11779: =over 4
11780:
1.191 harris41 11781: =item *
11782:
11783: escape() : unpack non-word characters into CGI-compatible hex codes
11784:
11785: =item *
11786:
11787: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
11788:
1.243 albertel 11789: =back
11790:
11791: =head1 PRIVATE SUBROUTINES
11792:
11793: =head2 Underlying communication routines (Shouldn't call)
11794:
11795: =over 4
11796:
11797: =item *
11798:
11799: subreply() : tries to pass a message to lonc, returns con_lost if incapable
11800:
11801: =item *
11802:
11803: reply() : uses subreply to send a message to remote machine, logs all failures
11804:
11805: =item *
11806:
11807: critical() : passes a critical message to another server; if cannot
11808: get through then place message in connection buffer directory and
11809: returns con_delayed, if incapable of saving message, returns
11810: con_failed
11811:
11812: =item *
11813:
11814: reconlonc() : tries to reconnect lonc client processes.
11815:
11816: =back
11817:
11818: =head2 Resource Access Logging
11819:
11820: =over 4
11821:
11822: =item *
11823:
11824: flushcourselogs() : flush (save) buffer logs and access logs
11825:
11826: =item *
11827:
11828: courselog($what) : save message for course in hash
11829:
11830: =item *
11831:
11832: courseacclog($what) : save message for course using &courselog(). Perform
11833: special processing for specific resource types (problems, exams, quizzes, etc).
11834:
1.191 harris41 11835: =item *
11836:
11837: goodbye() : flush course logs and log shutting down; it is called in srm.conf
11838: as a PerlChildExitHandler
1.243 albertel 11839:
11840: =back
11841:
11842: =head2 Other
11843:
11844: =over 4
11845:
11846: =item *
11847:
11848: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 11849:
11850: =back
11851:
11852: =cut
1.877 foxr 11853:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonnet.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / lonnet / perl