Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1172.2.9
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1172.2.9! raeburn 4: # $Id: lonnet.pm,v 1.1172.2.8 2012/08/01 04:56:54 raeburn Exp $
1.178 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 32: =head1 NAME
33:
34: Apache::lonnet.pm
35:
36: =head1 SYNOPSIS
37:
38: This file is an interface to the lonc processes of
39: the LON-CAPA network as well as set of elaborated functions for handling information
40: necessary for navigating through a given cluster of LON-CAPA machines within a
41: domain. There are over 40 specialized functions in this module which handle the
42: reading and transmission of metadata, user information (ids, names, environments, roles,
43: logs), file information (storage, reading, directories, extensions, replication, embedded
44: styles and descriptors), educational resources (course descriptions, section names and
45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
46: and from more descriptive phrases or explanations.
47:
48: This is part of the LearningOnline Network with CAPA project
49: described at http://www.lon-capa.org.
50:
1.971 jms 51: =head1 Package Variables
52:
53: These are largely undocumented, so if you decipher one please note it here.
54:
55: =over 4
56:
57: =item $processmarker
58:
59: Contains the time this process was started and this servers host id.
60:
61: =item $dumpcount
62:
63: Counts the number of times a message log flush has been attempted (regardless
64: of success) by this process. Used as part of the filename when messages are
65: delayed.
66:
67: =back
68:
69: =cut
70:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.871 albertel 78: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 79: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
80: %managerstab);
1.871 albertel 81:
82: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
83: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
84: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 85: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 86:
1.1 albertel 87: use IO::Socket;
1.31 www 88: use GDBM_File;
1.208 albertel 89: use HTML::LCParser;
1.88 www 90: use Fcntl qw(:flock);
1.870 albertel 91: use Storable qw(thaw nfreeze);
1.539 albertel 92: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 93: use Cache::Memcached;
1.676 albertel 94: use Digest::MD5;
1.790 albertel 95: use Math::Random;
1.1024 raeburn 96: use File::MMagic;
1.807 albertel 97: use LONCAPA qw(:DEFAULT :match);
1.740 www 98: use LONCAPA::Configuration;
1.1160 www 99: use LONCAPA::lonmetadata;
1.1117 foxr 100:
1.1090 raeburn 101: use File::Copy;
1.676 albertel 102:
1.195 www 103: my $readit;
1.550 foxr 104: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 105:
1.619 albertel 106: require Exporter;
107:
108: our @ISA = qw (Exporter);
109: our @EXPORT = qw(%env);
110:
1.1172.2.9! raeburn 111: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 112: {
113: my $logid;
1.1172.2.9! raeburn 114: sub write_log {
! 115: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
! 116: if ($context eq 'course') {
! 117: if (($cnum eq '') || ($cdom eq '')) {
! 118: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
! 119: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
! 120: }
1.957 raeburn 121: }
1.729 www 122: $logid++;
1.957 raeburn 123: my $now = time();
124: my $id=$now.'00000'.$$.'00000'.$logid;
1.1172.2.9! raeburn 125: my $logentry = {
! 126: $id => {
! 127: 'exe_uname' => $env{'user.name'},
! 128: 'exe_udom' => $env{'user.domain'},
! 129: 'exe_time' => $now,
! 130: 'exe_ip' => $ENV{'REMOTE_ADDR'},
! 131: 'delflag' => $delflag,
! 132: 'logentry' => $storehash,
! 133: 'uname' => $uname,
! 134: 'udom' => $udom,
! 135: }
! 136: };
! 137: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 138: }
139: }
1.1 albertel 140:
1.163 harris41 141: sub logtouch {
142: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 143: unless (-e "$execdir/logs/lonnet.log") {
144: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 145: close $fh;
146: }
147: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
148: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
149: }
150:
1.1 albertel 151: sub logthis {
152: my $message=shift;
153: my $execdir=$perlvar{'lonDaemons'};
154: my $now=time;
155: my $local=localtime($now);
1.448 albertel 156: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 157: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
158: print $fh $logstring;
1.448 albertel 159: close($fh);
160: }
1.1 albertel 161: return 1;
162: }
163:
164: sub logperm {
165: my $message=shift;
166: my $execdir=$perlvar{'lonDaemons'};
167: my $now=time;
168: my $local=localtime($now);
1.448 albertel 169: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
170: print $fh "$now:$message:$local\n";
171: close($fh);
172: }
1.1 albertel 173: return 1;
174: }
175:
1.850 albertel 176: sub create_connection {
1.853 albertel 177: my ($hostname,$lonid) = @_;
1.851 albertel 178: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 179: Type => SOCK_STREAM,
180: Timeout => 10);
181: return 0 if (!$client);
1.890 albertel 182: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 183: my $result = <$client>;
184: chomp($result);
185: return 1 if ($result eq 'done');
186: return 0;
187: }
188:
1.983 raeburn 189: sub get_server_timezone {
190: my ($cnum,$cdom) = @_;
191: my $home=&homeserver($cnum,$cdom);
192: if ($home ne 'no_host') {
193: my $cachetime = 24*3600;
194: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
195: if (defined($cached)) {
196: return $timezone;
197: } else {
198: my $timezone = &reply('servertimezone',$home);
199: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
200: }
201: }
202: }
1.850 albertel 203:
1.1106 raeburn 204: sub get_server_distarch {
205: my ($lonhost,$ignore_cache) = @_;
206: if (defined($lonhost)) {
207: if (!defined(&hostname($lonhost))) {
208: return;
209: }
210: my $cachetime = 12*3600;
211: if (!$ignore_cache) {
212: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
213: if (defined($cached)) {
214: return $distarch;
215: }
216: }
217: my $rep = &reply('serverdistarch',$lonhost);
218: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
219: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
220: $rep eq '') {
221: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
222: }
223: }
224: return;
225: }
226:
1.993 raeburn 227: sub get_server_loncaparev {
1.1073 raeburn 228: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 229: if (defined($lonhost)) {
230: if (!defined(&hostname($lonhost))) {
231: undef($lonhost);
232: }
233: }
234: if (!defined($lonhost)) {
235: if (defined(&domain($dom,'primary'))) {
236: $lonhost=&domain($dom,'primary');
237: if ($lonhost eq 'no_host') {
238: undef($lonhost);
239: }
240: }
241: }
242: if (defined($lonhost)) {
1.1073 raeburn 243: my $cachetime = 12*3600;
244: if (!$ignore_cache) {
245: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
246: if (defined($cached)) {
247: return $loncaparev;
248: }
249: }
250: my ($answer,$loncaparev);
251: my @ids=¤t_machine_ids();
252: if (grep(/^\Q$lonhost\E$/,@ids)) {
253: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 254: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 255: $loncaparev = $1;
256: }
257: } else {
258: $answer = &reply('serverloncaparev',$lonhost);
259: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
260: if ($caller eq 'loncron') {
261: my $ua=new LWP::UserAgent;
1.1082 raeburn 262: $ua->timeout(4);
1.1073 raeburn 263: my $protocol = $protocol{$lonhost};
264: $protocol = 'http' if ($protocol ne 'https');
265: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
266: my $request=new HTTP::Request('GET',$url);
267: my $response=$ua->request($request);
268: unless ($response->is_error()) {
269: my $content = $response->content;
1.1081 raeburn 270: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 271: $loncaparev = $1;
272: }
273: }
274: } else {
275: $loncaparev = $loncaparevs{$lonhost};
276: }
1.1081 raeburn 277: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 278: $loncaparev = $1;
279: }
1.993 raeburn 280: }
1.1073 raeburn 281: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 282: }
283: }
284:
1.1074 raeburn 285: sub get_server_homeID {
286: my ($hostname,$ignore_cache,$caller) = @_;
287: unless ($ignore_cache) {
288: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
289: if (defined($cached)) {
290: return $serverhomeID;
291: }
292: }
293: my $cachetime = 12*3600;
294: my $serverhomeID;
295: if ($caller eq 'loncron') {
296: my @machine_ids = &machine_ids($hostname);
297: foreach my $id (@machine_ids) {
298: my $response = &reply('serverhomeID',$id);
299: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
300: $serverhomeID = $response;
301: last;
302: }
303: }
304: if ($serverhomeID eq '') {
305: $serverhomeID = $machine_ids[-1];
306: }
307: } else {
308: $serverhomeID = $serverhomeIDs{$hostname};
309: }
310: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
311: }
312:
1.1121 raeburn 313: sub get_remote_globals {
314: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 315: my ($result,%returnhash,%whatneeded);
316: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 317: foreach my $what (sort(keys(%{$whathash}))) {
318: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 319: my ($response,$cached);
1.1121 raeburn 320: unless ($ignore_cache) {
1.1125 raeburn 321: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 322: }
323: if (defined($cached)) {
1.1125 raeburn 324: $returnhash{$what} = $response;
1.1121 raeburn 325: } else {
1.1125 raeburn 326: $whatneeded{$what} = 1;
1.1121 raeburn 327: }
328: }
1.1125 raeburn 329: if (keys(%whatneeded) == 0) {
330: $result = 'ok';
331: } else {
1.1121 raeburn 332: my $requested = &freeze_escape(\%whatneeded);
333: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 334: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
335: ($rep eq 'unknown_cmd')) {
336: $result = $rep;
337: } else {
338: $result = 'ok';
1.1121 raeburn 339: my @pairs=split(/\&/,$rep);
1.1125 raeburn 340: foreach my $item (@pairs) {
341: my ($key,$value)=split(/=/,$item,2);
342: my $what = &unescape($key);
343: my $hashid = $lonhost.'-'.$what;
344: $returnhash{$what}=&thaw_unescape($value);
345: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 346: }
347: }
348: }
349: }
1.1125 raeburn 350: return ($result,\%returnhash);
1.1121 raeburn 351: }
352:
1.1124 raeburn 353: sub remote_devalidate_cache {
354: my ($lonhost,$name,$id) = @_;
1.1130 raeburn 355: my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
1.1124 raeburn 356: return $response;
357: }
358:
1.1 albertel 359: # -------------------------------------------------- Non-critical communication
360: sub subreply {
361: my ($cmd,$server)=@_;
1.838 albertel 362: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 363: #
364: # With loncnew process trimming, there's a timing hole between lonc server
365: # process exit and the master server picking up the listen on the AF_UNIX
366: # socket. In that time interval, a lock file will exist:
367:
368: my $lockfile=$peerfile.".lock";
369: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
370: sleep(1);
371: }
372: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 373: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 374: #
1.550 foxr 375: # We'll give the connection a few tries before abandoning it. If
376: # connection is not possible, we'll con_lost back to the client.
377: #
378: my $client;
379: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
380: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
381: Type => SOCK_STREAM,
382: Timeout => 10);
1.869 albertel 383: if ($client) {
1.550 foxr 384: last; # Connected!
1.850 albertel 385: } else {
1.853 albertel 386: &create_connection(&hostname($server),$server);
1.550 foxr 387: }
1.850 albertel 388: sleep(1); # Try again later if failed connection.
1.550 foxr 389: }
390: my $answer;
391: if ($client) {
1.704 albertel 392: print $client "sethost:$server:$cmd\n";
1.550 foxr 393: $answer=<$client>;
394: if (!$answer) { $answer="con_lost"; }
395: chomp($answer);
396: } else {
397: $answer = 'con_lost'; # Failed connection.
398: }
1.1 albertel 399: return $answer;
400: }
401:
402: sub reply {
403: my ($cmd,$server)=@_;
1.838 albertel 404: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 405: my $answer=subreply($cmd,$server);
1.65 www 406: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 407: &logthis("<font color=\"blue\">WARNING:".
1.12 www 408: " $cmd to $server returned $answer</font>");
409: }
1.1 albertel 410: return $answer;
411: }
412:
413: # ----------------------------------------------------------- Send USR1 to lonc
414:
415: sub reconlonc {
1.891 albertel 416: my ($lonid) = @_;
417: my $hostname = &hostname($lonid);
418: if ($lonid) {
419: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
420: if ($hostname && -e $peerfile) {
421: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
422: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
423: Type => SOCK_STREAM,
424: Timeout => 10);
425: if ($client) {
426: print $client ("reset_retries\n");
427: my $answer=<$client>;
428: #reset just this one.
429: }
430: }
431: return;
432: }
433:
1.836 www 434: &logthis("Trying to reconnect lonc");
1.1 albertel 435: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 436: if (open(my $fh,"<$loncfile")) {
1.1 albertel 437: my $loncpid=<$fh>;
438: chomp($loncpid);
439: if (kill 0 => $loncpid) {
440: &logthis("lonc at pid $loncpid responding, sending USR1");
441: kill USR1 => $loncpid;
442: sleep 1;
1.836 www 443: } else {
1.12 www 444: &logthis(
1.672 albertel 445: "<font color=\"blue\">WARNING:".
1.12 www 446: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 447: }
448: } else {
1.836 www 449: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 450: }
451: }
452:
453: # ------------------------------------------------------ Critical communication
1.12 www 454:
1.1 albertel 455: sub critical {
456: my ($cmd,$server)=@_;
1.838 albertel 457: unless (&hostname($server)) {
1.672 albertel 458: &logthis("<font color=\"blue\">WARNING:".
1.89 www 459: " Critical message to unknown server ($server)</font>");
460: return 'no_such_host';
461: }
1.1 albertel 462: my $answer=reply($cmd,$server);
463: if ($answer eq 'con_lost') {
464: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 465: my $answer=reply($cmd,$server);
1.1 albertel 466: if ($answer eq 'con_lost') {
467: my $now=time;
468: my $middlename=$cmd;
1.5 www 469: $middlename=substr($middlename,0,16);
1.1 albertel 470: $middlename=~s/\W//g;
471: my $dfilename=
1.305 www 472: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
473: $dumpcount++;
1.1 albertel 474: {
1.448 albertel 475: my $dfh;
476: if (open($dfh,">$dfilename")) {
477: print $dfh "$cmd\n";
478: close($dfh);
479: }
1.1 albertel 480: }
481: sleep 2;
482: my $wcmd='';
483: {
1.448 albertel 484: my $dfh;
485: if (open($dfh,"<$dfilename")) {
486: $wcmd=<$dfh>;
487: close($dfh);
488: }
1.1 albertel 489: }
490: chomp($wcmd);
1.7 www 491: if ($wcmd eq $cmd) {
1.672 albertel 492: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 493: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 494: &logperm("D:$server:$cmd");
495: return 'con_delayed';
496: } else {
1.672 albertel 497: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 498: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 499: &logperm("F:$server:$cmd");
500: return 'con_failed';
501: }
502: }
503: }
504: return $answer;
1.405 albertel 505: }
506:
1.755 albertel 507: # ------------------------------------------- check if return value is an error
508:
509: sub error {
510: my ($result) = @_;
1.756 albertel 511: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 512: if ($2 == 2) { return undef; }
513: return $1;
514: }
515: return undef;
516: }
517:
1.783 albertel 518: sub convert_and_load_session_env {
519: my ($lonidsdir,$handle)=@_;
520: my @profile;
521: {
1.917 albertel 522: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
523: if (!$opened) {
1.915 albertel 524: return 0;
525: }
1.783 albertel 526: flock($idf,LOCK_SH);
527: @profile=<$idf>;
528: close($idf);
529: }
530: my %temp_env;
531: foreach my $line (@profile) {
1.786 albertel 532: if ($line !~ m/=/) {
533: return 0;
534: }
1.783 albertel 535: chomp($line);
536: my ($envname,$envvalue)=split(/=/,$line,2);
537: $temp_env{&unescape($envname)} = &unescape($envvalue);
538: }
539: unlink("$lonidsdir/$handle.id");
540: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
541: 0640)) {
542: %disk_env = %temp_env;
543: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
544: untie(%disk_env);
545: }
1.786 albertel 546: return 1;
1.783 albertel 547: }
548:
1.374 www 549: # ------------------------------------------- Transfer profile into environment
1.780 albertel 550: my $env_loaded;
551: sub transfer_profile_to_env {
1.788 albertel 552: my ($lonidsdir,$handle,$force_transfer) = @_;
553: if (!$force_transfer && $env_loaded) { return; }
1.374 www 554:
1.720 albertel 555: if (!defined($lonidsdir)) {
556: $lonidsdir = $perlvar{'lonIDsDir'};
557: }
558: if (!defined($handle)) {
559: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
560: }
561:
1.786 albertel 562: my $convert;
563: {
1.917 albertel 564: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
565: if (!$opened) {
1.915 albertel 566: return;
567: }
1.786 albertel 568: flock($idf,LOCK_SH);
569: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
570: &GDBM_READER(),0640)) {
571: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
572: untie(%disk_env);
573: } else {
574: $convert = 1;
575: }
576: }
577: if ($convert) {
578: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
579: &logthis("Failed to load session, or convert session.");
580: }
1.374 www 581: }
1.783 albertel 582:
1.786 albertel 583: my %remove;
1.783 albertel 584: while ( my $envname = each(%env) ) {
1.433 matthew 585: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
586: if ($time < time-300) {
1.783 albertel 587: $remove{$key}++;
1.433 matthew 588: }
589: }
590: }
1.783 albertel 591:
1.619 albertel 592: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 593: $env_loaded=1;
1.783 albertel 594: foreach my $expired_key (keys(%remove)) {
1.433 matthew 595: &delenv($expired_key);
1.374 www 596: }
1.1 albertel 597: }
598:
1.916 albertel 599: # ---------------------------------------------------- Check for valid session
600: sub check_for_valid_session {
1.1155 raeburn 601: my ($r,$name) = @_;
1.916 albertel 602: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 603: if ($name eq '') {
604: $name = 'lonID';
605: }
606: my $lonid=$cookies{$name};
1.916 albertel 607: return undef if (!$lonid);
608:
609: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 610: my $lonidsdir;
611: if ($name eq 'lonDAV') {
612: $lonidsdir=$r->dir_config('lonDAVsessDir');
613: } else {
614: $lonidsdir=$r->dir_config('lonIDsDir');
615: }
1.916 albertel 616: return undef if (!-e "$lonidsdir/$handle.id");
617:
1.917 albertel 618: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
619: return undef if (!$opened);
1.916 albertel 620:
621: flock($idf,LOCK_SH);
622: my %disk_env;
623: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
624: &GDBM_READER(),0640)) {
625: return undef;
626: }
627:
628: if (!defined($disk_env{'user.name'})
629: || !defined($disk_env{'user.domain'})) {
630: return undef;
631: }
632: return $handle;
633: }
634:
1.830 albertel 635: sub timed_flock {
636: my ($file,$lock_type) = @_;
637: my $failed=0;
638: eval {
639: local $SIG{__DIE__}='DEFAULT';
640: local $SIG{ALRM}=sub {
641: $failed=1;
642: die("failed lock");
643: };
644: alarm(13);
645: flock($file,$lock_type);
646: alarm(0);
647: };
648: if ($failed) {
649: return undef;
650: } else {
651: return 1;
652: }
653: }
654:
1.5 www 655: # ---------------------------------------------------------- Append Environment
656:
657: sub appenv {
1.949 raeburn 658: my ($newenv,$roles) = @_;
659: if (ref($newenv) eq 'HASH') {
660: foreach my $key (keys(%{$newenv})) {
661: my $refused = 0;
662: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
663: $refused = 1;
664: if (ref($roles) eq 'ARRAY') {
665: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
666: if (grep(/^\Q$role\E$/,@{$roles})) {
667: $refused = 0;
668: }
669: }
670: }
671: if ($refused) {
672: &logthis("<font color=\"blue\">WARNING: ".
673: "Attempt to modify environment ".$key." to ".$newenv->{$key}
674: .'</font>');
675: delete($newenv->{$key});
676: } else {
677: $env{$key}=$newenv->{$key};
678: }
679: }
680: my $opened = open(my $env_file,'+<',$env{'user.environment'});
681: if ($opened
682: && &timed_flock($env_file,LOCK_EX)
683: &&
684: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
685: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
686: while (my ($key,$value) = each(%{$newenv})) {
687: $disk_env{$key} = $value;
688: }
689: untie(%disk_env);
1.35 www 690: }
1.191 harris41 691: }
1.56 www 692: return 'ok';
693: }
694: # ----------------------------------------------------- Delete from Environment
695:
696: sub delenv {
1.1104 raeburn 697: my ($delthis,$regexp,$roles) = @_;
698: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
699: my $refused = 1;
700: if (ref($roles) eq 'ARRAY') {
701: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
702: if (grep(/^\Q$role\E$/,@{$roles})) {
703: $refused = 0;
704: }
705: }
706: if ($refused) {
707: &logthis("<font color=\"blue\">WARNING: ".
708: "Attempt to delete from environment ".$delthis);
709: return 'error';
710: }
1.56 www 711: }
1.917 albertel 712: my $opened = open(my $env_file,'+<',$env{'user.environment'});
713: if ($opened
1.915 albertel 714: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 715: &&
716: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
717: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 718: foreach my $key (keys(%disk_env)) {
1.987 raeburn 719: if ($regexp) {
720: if ($key=~/^$delthis/) {
721: delete($env{$key});
722: delete($disk_env{$key});
723: }
724: } else {
725: if ($key=~/^\Q$delthis\E/) {
726: delete($env{$key});
727: delete($disk_env{$key});
728: }
729: }
1.448 albertel 730: }
1.783 albertel 731: untie(%disk_env);
1.5 www 732: }
733: return 'ok';
1.369 albertel 734: }
735:
1.790 albertel 736: sub get_env_multiple {
737: my ($name) = @_;
738: my @values;
739: if (defined($env{$name})) {
740: # exists is it an array
741: if (ref($env{$name})) {
742: @values=@{ $env{$name} };
743: } else {
744: $values[0]=$env{$name};
745: }
746: }
747: return(@values);
748: }
749:
1.958 www 750: # ------------------------------------------------------------------- Locking
751:
752: sub set_lock {
753: my ($text)=@_;
754: $locknum++;
755: my $id=$$.'-'.$locknum;
756: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
757: 'session.lock.'.$id => $text});
758: return $id;
759: }
760:
761: sub get_locks {
762: my $num=0;
763: my %texts=();
764: foreach my $lock (split(/\,/,$env{'session.locks'})) {
765: if ($lock=~/\w/) {
766: $num++;
767: $texts{$lock}=$env{'session.lock.'.$lock};
768: }
769: }
770: return ($num,%texts);
771: }
772:
773: sub remove_lock {
774: my ($id)=@_;
775: my $newlocks='';
776: foreach my $lock (split(/\,/,$env{'session.locks'})) {
777: if (($lock=~/\w/) && ($lock ne $id)) {
778: $newlocks.=','.$lock;
779: }
780: }
781: &appenv({'session.locks' => $newlocks});
782: &delenv('session.lock.'.$id);
783: }
784:
785: sub remove_all_locks {
786: my $activelocks=$env{'session.locks'};
787: foreach my $lock (split(/\,/,$env{'session.locks'})) {
788: if ($lock=~/\w/) {
789: &remove_lock($lock);
790: }
791: }
792: }
793:
794:
1.369 albertel 795: # ------------------------------------------ Find out current server userload
796: sub userload {
797: my $numusers=0;
798: {
799: opendir(LONIDS,$perlvar{'lonIDsDir'});
800: my $filename;
801: my $curtime=time;
802: while ($filename=readdir(LONIDS)) {
1.925 albertel 803: next if ($filename eq '.' || $filename eq '..');
804: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 805: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 806: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 807: }
808: closedir(LONIDS);
809: }
810: my $userloadpercent=0;
811: my $maxuserload=$perlvar{'lonUserLoadLim'};
812: if ($maxuserload) {
1.371 albertel 813: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 814: }
1.372 albertel 815: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 816: return $userloadpercent;
1.283 www 817: }
818:
1.1 albertel 819: # ------------------------------ Find server with least workload from spare.tab
1.11 www 820:
1.1 albertel 821: sub spareserver {
1.1083 raeburn 822: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 823: my $spare_server;
1.370 albertel 824: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 825: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
826: : $userloadpercent;
1.1083 raeburn 827: my ($uint_dom,$remotesessions);
828: if (($udom ne '') && (&domain($udom) ne '')) {
829: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
830: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
831: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
832: $remotesessions = $udomdefaults{'remotesessions'};
833: }
1.1123 raeburn 834: my $spareshash = &this_host_spares($udom);
835: if (ref($spareshash) eq 'HASH') {
836: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
837: foreach my $try_server (@{ $spareshash->{'primary'} }) {
838: if ($uint_dom) {
839: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
840: $try_server));
841: }
842: ($spare_server, $lowest_load) =
843: &compare_server_load($try_server, $spare_server, $lowest_load);
844: }
1.1083 raeburn 845: }
1.784 albertel 846:
1.1123 raeburn 847: my $found_server = ($spare_server ne '' && $lowest_load < 100);
848:
849: if (!$found_server) {
850: if (ref($spareshash->{'default'}) eq 'ARRAY') {
851: foreach my $try_server (@{ $spareshash->{'default'} }) {
852: if ($uint_dom) {
853: next unless (&spare_can_host($udom,$uint_dom,
854: $remotesessions,$try_server));
855: }
856: ($spare_server, $lowest_load) =
857: &compare_server_load($try_server, $spare_server, $lowest_load);
858: }
859: }
860: }
1.784 albertel 861: }
862:
863: if (!$want_server_name) {
1.968 raeburn 864: my $protocol = 'http';
865: if ($protocol{$spare_server} eq 'https') {
866: $protocol = $protocol{$spare_server};
867: }
1.1001 raeburn 868: if (defined($spare_server)) {
869: my $hostname = &hostname($spare_server);
1.1083 raeburn 870: if (defined($hostname)) {
1.1001 raeburn 871: $spare_server = $protocol.'://'.$hostname;
872: }
873: }
1.784 albertel 874: }
875: return $spare_server;
876: }
877:
878: sub compare_server_load {
879: my ($try_server, $spare_server, $lowest_load) = @_;
880:
881: my $loadans = &reply('load', $try_server);
882: my $userloadans = &reply('userload',$try_server);
883:
884: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 885: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 886: }
887:
888: my $load;
889: if ($loadans =~ /\d/) {
890: if ($userloadans =~ /\d/) {
891: #both are numbers, pick the bigger one
892: $load = ($loadans > $userloadans) ? $loadans
893: : $userloadans;
1.411 albertel 894: } else {
1.784 albertel 895: $load = $loadans;
1.411 albertel 896: }
1.784 albertel 897: } else {
898: $load = $userloadans;
899: }
900:
901: if (($load =~ /\d/) && ($load < $lowest_load)) {
902: $spare_server = $try_server;
903: $lowest_load = $load;
1.370 albertel 904: }
1.784 albertel 905: return ($spare_server,$lowest_load);
1.202 matthew 906: }
1.914 albertel 907:
908: # --------------------------- ask offload servers if user already has a session
909: sub find_existing_session {
910: my ($udom,$uname) = @_;
1.1123 raeburn 911: my $spareshash = &this_host_spares($udom);
912: if (ref($spareshash) eq 'HASH') {
913: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
914: foreach my $try_server (@{ $spareshash->{'primary'} }) {
915: return $try_server if (&has_user_session($try_server, $udom, $uname));
916: }
917: }
918: if (ref($spareshash->{'default'}) eq 'ARRAY') {
919: foreach my $try_server (@{ $spareshash->{'default'} }) {
920: return $try_server if (&has_user_session($try_server, $udom, $uname));
921: }
922: }
1.914 albertel 923: }
924: return;
925: }
926:
927: # -------------------------------- ask if server already has a session for user
928: sub has_user_session {
929: my ($lonid,$udom,$uname) = @_;
930: my $result = &reply(join(':','userhassession',
931: map {&escape($_)} ($udom,$uname)),$lonid);
932: return 1 if ($result eq 'ok');
933:
934: return 0;
935: }
936:
1.1076 raeburn 937: # --------- determine least loaded server in a user's domain which allows login
938:
939: sub choose_server {
1.1115 raeburn 940: my ($udom,$checkloginvia) = @_;
1.1076 raeburn 941: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 942: my %servers = &get_servers($udom);
1.1076 raeburn 943: my $lowest_load = 30000;
1.1151 raeburn 944: my ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 945: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 946: my $loginvia;
947: if ($checkloginvia) {
948: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 949: if ($loginvia) {
950: my ($server,$path) = split(/:/,$loginvia);
951: ($login_host, $lowest_load) =
952: &compare_server_load($server, $login_host, $lowest_load);
953: if ($login_host eq $server) {
954: $portal_path = $path;
1.1151 raeburn 955: $isredirect = 1;
1.1116 raeburn 956: }
957: } else {
958: ($login_host, $lowest_load) =
959: &compare_server_load($lonhost, $login_host, $lowest_load);
960: if ($login_host eq $lonhost) {
961: $portal_path = '';
1.1151 raeburn 962: $isredirect = '';
1.1116 raeburn 963: }
964: }
965: } else {
1.1076 raeburn 966: ($login_host, $lowest_load) =
1.1116 raeburn 967: &compare_server_load($lonhost, $login_host, $lowest_load);
1.1076 raeburn 968: }
969: }
970: if ($login_host ne '') {
1.1116 raeburn 971: $hostname = &hostname($login_host);
1.1076 raeburn 972: }
1.1151 raeburn 973: return ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 974: }
975:
1.202 matthew 976: # --------------------------------------------- Try to change a user's password
977:
978: sub changepass {
1.799 raeburn 979: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 980: $currentpass = &escape($currentpass);
981: $newpass = &escape($newpass);
1.1030 raeburn 982: my $lonhost = $perlvar{'lonHostID'};
983: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 984: $server);
985: if (! $answer) {
986: &logthis("No reply on password change request to $server ".
987: "by $uname in domain $udom.");
988: } elsif ($answer =~ "^ok") {
989: &logthis("$uname in $udom successfully changed their password ".
990: "on $server.");
991: } elsif ($answer =~ "^pwchange_failure") {
992: &logthis("$uname in $udom was unable to change their password ".
993: "on $server. The action was blocked by either lcpasswd ".
994: "or pwchange");
995: } elsif ($answer =~ "^non_authorized") {
996: &logthis("$uname in $udom did not get their password correct when ".
997: "attempting to change it on $server.");
998: } elsif ($answer =~ "^auth_mode_error") {
999: &logthis("$uname in $udom attempted to change their password despite ".
1000: "not being locally or internally authenticated on $server.");
1001: } elsif ($answer =~ "^unknown_user") {
1002: &logthis("$uname in $udom attempted to change their password ".
1003: "on $server but were unable to because $server is not ".
1004: "their home server.");
1005: } elsif ($answer =~ "^refused") {
1006: &logthis("$server refused to change $uname in $udom password because ".
1007: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1008: } elsif ($answer =~ "invalid_client") {
1009: &logthis("$server refused to change $uname in $udom password because ".
1010: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1011: }
1012: return $answer;
1.1 albertel 1013: }
1014:
1.169 harris41 1015: # ----------------------- Try to determine user's current authentication scheme
1016:
1017: sub queryauthenticate {
1018: my ($uname,$udom)=@_;
1.456 albertel 1019: my $uhome=&homeserver($uname,$udom);
1020: if (!$uhome) {
1021: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1022: return 'no_host';
1023: }
1024: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1025: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1026: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1027: }
1.456 albertel 1028: return $answer;
1.169 harris41 1029: }
1030:
1.1 albertel 1031: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1032:
1.1 albertel 1033: sub authenticate {
1.1073 raeburn 1034: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1035: $upass=&escape($upass);
1036: $uname= &LONCAPA::clean_username($uname);
1.836 www 1037: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1038: my $newhome;
1.836 www 1039: if ((!$uhome) || ($uhome eq 'no_host')) {
1040: # Maybe the machine was offline and only re-appeared again recently?
1041: &reconlonc();
1042: # One more
1.952 raeburn 1043: $uhome=&homeserver($uname,$udom,1);
1044: if (($uhome eq 'no_host') && $checkdefauth) {
1045: if (defined(&domain($udom,'primary'))) {
1046: $newhome=&domain($udom,'primary');
1047: }
1048: if ($newhome ne '') {
1049: $uhome = $newhome;
1050: }
1051: }
1.836 www 1052: if ((!$uhome) || ($uhome eq 'no_host')) {
1053: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1054: return 'no_host';
1055: }
1.1 albertel 1056: }
1.1073 raeburn 1057: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1058: if ($answer eq 'authorized') {
1.952 raeburn 1059: if ($newhome) {
1060: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1061: return 'no_account_on_host';
1062: } else {
1063: &logthis("User $uname at $udom authorized by $uhome");
1064: return $uhome;
1065: }
1.471 albertel 1066: }
1067: if ($answer eq 'non_authorized') {
1068: &logthis("User $uname at $udom rejected by $uhome");
1069: return 'no_host';
1.9 www 1070: }
1.471 albertel 1071: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1072: return 'no_host';
1073: }
1074:
1.1073 raeburn 1075: sub can_host_session {
1.1074 raeburn 1076: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1077: my $canhost = 1;
1.1074 raeburn 1078: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1079: if (ref($remotesessions) eq 'HASH') {
1080: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1081: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1082: $canhost = 0;
1083: } else {
1084: $canhost = 1;
1085: }
1086: }
1087: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1088: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1089: $canhost = 1;
1090: } else {
1091: $canhost = 0;
1092: }
1093: }
1094: if ($canhost) {
1095: if ($remotesessions->{'version'} ne '') {
1096: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1097: if ($reqmajor ne '' && $reqminor ne '') {
1098: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1099: my $major = $1;
1100: my $minor = $2;
1101: if (($major < $reqmajor ) ||
1102: (($major == $reqmajor) && ($minor < $reqminor))) {
1103: $canhost = 0;
1104: }
1105: } else {
1106: $canhost = 0;
1107: }
1108: }
1109: }
1110: }
1111: }
1112: if ($canhost) {
1113: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1114: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1115: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1116: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1117: if (($uint_dom ne '') &&
1118: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1119: $canhost = 0;
1120: } else {
1121: $canhost = 1;
1122: }
1123: }
1124: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1125: if (($uint_dom ne '') &&
1126: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1127: $canhost = 1;
1128: } else {
1129: $canhost = 0;
1130: }
1131: }
1132: }
1133: }
1134: return $canhost;
1135: }
1136:
1.1083 raeburn 1137: sub spare_can_host {
1138: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1139: my $canhost=1;
1140: my @intdoms;
1141: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1142: if (ref($internet_names) eq 'ARRAY') {
1143: @intdoms = @{$internet_names};
1144: }
1145: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1146: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1147: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1148: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1149: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1150: $canhost = &can_host_session($udom,$try_server,$remoterev,
1151: $remotesessions,
1152: $defdomdefaults{'hostedsessions'});
1153: }
1154: return $canhost;
1155: }
1156:
1.1123 raeburn 1157: sub this_host_spares {
1158: my ($dom) = @_;
1.1126 raeburn 1159: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1160: my @hosts = ¤t_machine_ids();
1161: foreach my $lonhost (@hosts) {
1162: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1163: $dom_in_use = $dom;
1164: $lonhost_in_use = $lonhost;
1.1123 raeburn 1165: last;
1166: }
1167: }
1.1126 raeburn 1168: if ($dom_in_use ne '') {
1169: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1170: }
1171: if (ref($result) ne 'HASH') {
1172: $lonhost_in_use = $perlvar{'lonHostID'};
1173: $dom_in_use = &host_domain($lonhost_in_use);
1174: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1175: if (ref($result) ne 'HASH') {
1176: $result = \%spareid;
1177: }
1178: }
1179: return $result;
1180: }
1181:
1182: sub spares_for_offload {
1183: my ($dom_in_use,$lonhost_in_use) = @_;
1184: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1185: if (defined($cached)) {
1186: return $result;
1187: } else {
1.1126 raeburn 1188: my $cachetime = 60*60*24;
1189: my %domconfig =
1190: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1191: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1192: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1193: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1194: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1195: }
1196: }
1197: }
1198: }
1.1126 raeburn 1199: return;
1.1123 raeburn 1200: }
1201:
1.1129 raeburn 1202: sub get_lonbalancer_config {
1203: my ($servers) = @_;
1204: my ($currbalancer,$currtargets);
1205: if (ref($servers) eq 'HASH') {
1206: foreach my $server (keys(%{$servers})) {
1207: my %what = (
1208: spareid => 1,
1209: perlvar => 1,
1210: );
1211: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1212: if ($result eq 'ok') {
1213: if (ref($returnhash) eq 'HASH') {
1214: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1215: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1216: $currbalancer = $server;
1217: $currtargets = {};
1218: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1219: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1220: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1221: }
1222: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1223: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1224: }
1225: }
1226: last;
1227: }
1228: }
1229: }
1230: }
1231: }
1232: }
1233: return ($currbalancer,$currtargets);
1234: }
1235:
1236: sub check_loadbalancing {
1237: my ($uname,$udom) = @_;
1238: my ($is_balancer,$dom_in_use,$homeintdom,$rule_in_effect,
1239: $offloadto,$otherserver);
1240: my $lonhost = $perlvar{'lonHostID'};
1.1172.2.4 raeburn 1241: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1242: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1243: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1244: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1245: my $serverhomedom = &host_domain($lonhost);
1246:
1247: my $cachetime = 60*60*24;
1248:
1249: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1250: $dom_in_use = $udom;
1251: $homeintdom = 1;
1252: } else {
1253: $dom_in_use = $serverhomedom;
1254: }
1255: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1256: unless (defined($cached)) {
1257: my %domconfig =
1258: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1259: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1260: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1261: }
1262: }
1263: if (ref($result) eq 'HASH') {
1264: my $currbalancer = $result->{'lonhost'};
1265: my $currtargets = $result->{'targets'};
1266: my $currrules = $result->{'rules'};
1267: if ($currbalancer ne '') {
1268: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1269: $is_balancer = 1;
1270: }
1271: }
1272: if ($is_balancer) {
1273: if (ref($currrules) eq 'HASH') {
1274: if ($homeintdom) {
1275: if ($uname ne '') {
1276: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1277: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1278: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1279: $rule_in_effect = $currrules->{'_LC_author'};
1280: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1281: $rule_in_effect = $currrules->{'_LC_adv'}
1282: }
1283: }
1284: if ($rule_in_effect eq '') {
1285: my %userenv = &userenvironment($udom,$uname,'inststatus');
1286: if ($userenv{'inststatus'} ne '') {
1287: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1288: my ($othertitle,$usertypes,$types) =
1289: &Apache::loncommon::sorted_inst_types($udom);
1290: if (ref($types) eq 'ARRAY') {
1291: foreach my $type (@{$types}) {
1292: if (grep(/^\Q$type\E$/,@statuses)) {
1293: if (exists($currrules->{$type})) {
1294: $rule_in_effect = $currrules->{$type};
1295: }
1296: }
1297: }
1298: }
1299: } else {
1300: if (exists($currrules->{'default'})) {
1301: $rule_in_effect = $currrules->{'default'};
1302: }
1303: }
1304: }
1305: } else {
1306: if (exists($currrules->{'default'})) {
1307: $rule_in_effect = $currrules->{'default'};
1308: }
1309: }
1310: } else {
1311: if ($currrules->{'_LC_external'} ne '') {
1312: $rule_in_effect = $currrules->{'_LC_external'};
1313: }
1314: }
1315: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1316: $uname,$udom);
1317: }
1318: }
1319: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1320: my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1321: unless (defined($cached)) {
1322: my %domconfig =
1323: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1324: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1325: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1326: }
1327: }
1328: if (ref($result) eq 'HASH') {
1329: my $currbalancer = $result->{'lonhost'};
1330: my $currtargets = $result->{'targets'};
1331: my $currrules = $result->{'rules'};
1332:
1333: if ($currbalancer eq $lonhost) {
1334: $is_balancer = 1;
1335: if (ref($currrules) eq 'HASH') {
1336: if ($currrules->{'_LC_internetdom'} ne '') {
1337: $rule_in_effect = $currrules->{'_LC_internetdom'};
1338: }
1339: }
1340: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1341: $uname,$udom);
1342: }
1343: } else {
1344: if ($perlvar{'lonBalancer'} eq 'yes') {
1345: $is_balancer = 1;
1346: $offloadto = &this_host_spares($dom_in_use);
1347: }
1348: }
1349: } else {
1350: if ($perlvar{'lonBalancer'} eq 'yes') {
1351: $is_balancer = 1;
1352: $offloadto = &this_host_spares($dom_in_use);
1353: }
1354: }
1.1172.2.5 raeburn 1355: if ($is_balancer) {
1356: my $lowest_load = 30000;
1357: if (ref($offloadto) eq 'HASH') {
1358: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1359: foreach my $try_server (@{$offloadto->{'primary'}}) {
1360: ($otherserver,$lowest_load) =
1361: &compare_server_load($try_server,$otherserver,$lowest_load);
1362: }
1.1129 raeburn 1363: }
1.1172.2.5 raeburn 1364: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1365:
1.1172.2.5 raeburn 1366: if (!$found_server) {
1367: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1368: foreach my $try_server (@{$offloadto->{'default'}}) {
1369: ($otherserver,$lowest_load) =
1370: &compare_server_load($try_server,$otherserver,$lowest_load);
1371: }
1372: }
1373: }
1374: } elsif (ref($offloadto) eq 'ARRAY') {
1375: if (@{$offloadto} == 1) {
1376: $otherserver = $offloadto->[0];
1377: } elsif (@{$offloadto} > 1) {
1378: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1379: ($otherserver,$lowest_load) =
1380: &compare_server_load($try_server,$otherserver,$lowest_load);
1381: }
1382: }
1383: }
1.1172.2.5 raeburn 1384: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1385: $is_balancer = 0;
1386: if ($uname ne '' && $udom ne '') {
1387: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1388:
1389: &appenv({'user.loadbalexempt' => $lonhost,
1390: 'user.loadbalcheck.time' => time});
1391: }
1.1129 raeburn 1392: }
1393: }
1394: }
1395: return ($is_balancer,$otherserver);
1396: }
1397:
1398: sub get_loadbalancer_targets {
1399: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1400: my $offloadto;
1.1172.2.4 raeburn 1401: if ($rule_in_effect eq 'none') {
1402: return [$perlvar{'lonHostID'}];
1403: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1404: $offloadto = $currtargets;
1405: } else {
1406: if ($rule_in_effect eq 'homeserver') {
1407: my $homeserver = &homeserver($uname,$udom);
1408: if ($homeserver ne 'no_host') {
1409: $offloadto = [$homeserver];
1410: }
1411: } elsif ($rule_in_effect eq 'externalbalancer') {
1412: my %domconfig =
1413: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1414: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1415: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1416: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1417: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1418: }
1419: }
1420: } else {
1.1172.2.7 raeburn 1421: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1422: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1423: if (&hostname($remotebalancer) ne '') {
1424: $offloadto = [$remotebalancer];
1425: }
1426: }
1427: } elsif (&hostname($rule_in_effect) ne '') {
1428: $offloadto = [$rule_in_effect];
1429: }
1430: }
1431: return $offloadto;
1432: }
1433:
1.1127 raeburn 1434: sub internet_dom_servers {
1435: my ($dom) = @_;
1436: my (%uniqservers,%servers);
1437: my $primaryserver = &hostname(&domain($dom,'primary'));
1438: my @machinedoms = &machine_domains($primaryserver);
1439: foreach my $mdom (@machinedoms) {
1440: my %currservers = %servers;
1441: my %server = &get_servers($mdom);
1442: %servers = (%currservers,%server);
1443: }
1444: my %by_hostname;
1445: foreach my $id (keys(%servers)) {
1446: push(@{$by_hostname{$servers{$id}}},$id);
1447: }
1448: foreach my $hostname (sort(keys(%by_hostname))) {
1449: if (@{$by_hostname{$hostname}} > 1) {
1450: my $match = 0;
1451: foreach my $id (@{$by_hostname{$hostname}}) {
1452: if (&host_domain($id) eq $dom) {
1453: $uniqservers{$id} = $hostname;
1454: $match = 1;
1455: }
1456: }
1457: unless ($match) {
1458: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1459: }
1460: } else {
1461: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1462: }
1463: }
1464: return %uniqservers;
1465: }
1466:
1.1 albertel 1467: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1468:
1.599 albertel 1469: my %homecache;
1.1 albertel 1470: sub homeserver {
1.230 stredwic 1471: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1472: my $index="$uname:$udom";
1.426 albertel 1473:
1.599 albertel 1474: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1475:
1476: my %servers = &get_servers($udom,'library');
1477: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1478: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1479: exists($badServerCache{$tryserver}));
1.841 albertel 1480:
1481: my $answer=reply("home:$udom:$uname",$tryserver);
1482: if ($answer eq 'found') {
1483: delete($badServerCache{$tryserver});
1484: return $homecache{$index}=$tryserver;
1485: } elsif ($answer eq 'no_host') {
1486: $badServerCache{$tryserver}=1;
1487: }
1.1 albertel 1488: }
1489: return 'no_host';
1.70 www 1490: }
1491:
1492: # ------------------------------------- Find the usernames behind a list of IDs
1493:
1494: sub idget {
1495: my ($udom,@ids)=@_;
1496: my %returnhash=();
1497:
1.841 albertel 1498: my %servers = &get_servers($udom,'library');
1499: foreach my $tryserver (keys(%servers)) {
1500: my $idlist=join('&',@ids);
1501: $idlist=~tr/A-Z/a-z/;
1502: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1503: my @answer=();
1504: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1505: @answer=split(/\&/,$reply);
1506: } ;
1507: my $i;
1508: for ($i=0;$i<=$#ids;$i++) {
1509: if ($answer[$i]) {
1510: $returnhash{$ids[$i]}=$answer[$i];
1511: }
1512: }
1513: }
1.70 www 1514: return %returnhash;
1515: }
1516:
1517: # ------------------------------------- Find the IDs behind a list of usernames
1518:
1519: sub idrget {
1520: my ($udom,@unames)=@_;
1521: my %returnhash=();
1.800 albertel 1522: foreach my $uname (@unames) {
1523: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1524: }
1.70 www 1525: return %returnhash;
1526: }
1527:
1528: # ------------------------------- Store away a list of names and associated IDs
1529:
1530: sub idput {
1531: my ($udom,%ids)=@_;
1532: my %servers=();
1.800 albertel 1533: foreach my $uname (keys(%ids)) {
1534: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1535: my $uhom=&homeserver($uname,$udom);
1.70 www 1536: if ($uhom ne 'no_host') {
1.800 albertel 1537: my $id=&escape($ids{$uname});
1.70 www 1538: $id=~tr/A-Z/a-z/;
1.800 albertel 1539: my $esc_unam=&escape($uname);
1.70 www 1540: if ($servers{$uhom}) {
1.800 albertel 1541: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1542: } else {
1.800 albertel 1543: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1544: }
1545: }
1.191 harris41 1546: }
1.800 albertel 1547: foreach my $server (keys(%servers)) {
1548: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1549: }
1.344 www 1550: }
1551:
1.1023 raeburn 1552: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1553: sub dump_dom {
1.1165 droeschl 1554: my ($namespace, $udom, $regexp) = @_;
1555:
1556: $udom ||= $env{'user.domain'};
1557:
1558: return () unless $udom;
1559:
1560: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1561: }
1562:
1.1023 raeburn 1563: # ------------------------------------------ get items from domain db files
1.806 raeburn 1564:
1565: sub get_dom {
1.860 raeburn 1566: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1567: my $items='';
1568: foreach my $item (@$storearr) {
1569: $items.=&escape($item).'&';
1570: }
1571: $items=~s/\&$//;
1.860 raeburn 1572: if (!$udom) {
1573: $udom=$env{'user.domain'};
1574: if (defined(&domain($udom,'primary'))) {
1575: $uhome=&domain($udom,'primary');
1576: } else {
1.874 albertel 1577: undef($uhome);
1.860 raeburn 1578: }
1579: } else {
1580: if (!$uhome) {
1581: if (defined(&domain($udom,'primary'))) {
1582: $uhome=&domain($udom,'primary');
1583: }
1584: }
1585: }
1586: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1587: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1588: my %returnhash;
1.875 albertel 1589: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1590: return %returnhash;
1591: }
1.806 raeburn 1592: my @pairs=split(/\&/,$rep);
1593: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1594: return @pairs;
1595: }
1596: my $i=0;
1597: foreach my $item (@$storearr) {
1598: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1599: $i++;
1600: }
1601: return %returnhash;
1602: } else {
1.880 banghart 1603: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1604: }
1605: }
1606:
1607: # -------------------------------------------- put items in domain db files
1608:
1609: sub put_dom {
1.860 raeburn 1610: my ($namespace,$storehash,$udom,$uhome)=@_;
1611: if (!$udom) {
1612: $udom=$env{'user.domain'};
1613: if (defined(&domain($udom,'primary'))) {
1614: $uhome=&domain($udom,'primary');
1615: } else {
1.874 albertel 1616: undef($uhome);
1.860 raeburn 1617: }
1618: } else {
1619: if (!$uhome) {
1620: if (defined(&domain($udom,'primary'))) {
1621: $uhome=&domain($udom,'primary');
1622: }
1623: }
1624: }
1625: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1626: my $items='';
1627: foreach my $item (keys(%$storehash)) {
1628: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1629: }
1630: $items=~s/\&$//;
1631: return &reply("putdom:$udom:$namespace:$items",$uhome);
1632: } else {
1.860 raeburn 1633: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1634: }
1635: }
1636:
1.1023 raeburn 1637: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1638: sub newput_dom {
1.1023 raeburn 1639: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1640: my $result;
1641: if (!$udom) {
1642: $udom=$env{'user.domain'};
1643: }
1.1023 raeburn 1644: if ($udom) {
1645: my $uname = &get_domainconfiguser($udom);
1646: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1647: }
1648: return $result;
1649: }
1650:
1.1023 raeburn 1651: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1652: sub del_dom {
1.1023 raeburn 1653: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1654: if (ref($storearr) eq 'ARRAY') {
1655: if (!$udom) {
1656: $udom=$env{'user.domain'};
1657: }
1.1023 raeburn 1658: if ($udom) {
1659: my $uname = &get_domainconfiguser($udom);
1660: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1661: }
1662: }
1663: }
1664:
1.1023 raeburn 1665: # ----------------------------------construct domainconfig user for a domain
1666: sub get_domainconfiguser {
1667: my ($udom) = @_;
1668: return $udom.'-domainconfig';
1669: }
1670:
1.837 raeburn 1671: sub retrieve_inst_usertypes {
1672: my ($udom) = @_;
1673: my (%returnhash,@order);
1.989 raeburn 1674: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1675: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1676: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1677: %returnhash = %{$domdefs{'inststatustypes'}};
1678: @order = @{$domdefs{'inststatusorder'}};
1679: } else {
1680: if (defined(&domain($udom,'primary'))) {
1681: my $uhome=&domain($udom,'primary');
1682: my $rep=&reply("inst_usertypes:$udom",$uhome);
1683: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1684: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1685: return (\%returnhash,\@order);
1686: }
1687: my ($hashitems,$orderitems) = split(/:/,$rep);
1688: my @pairs=split(/\&/,$hashitems);
1689: foreach my $item (@pairs) {
1690: my ($key,$value)=split(/=/,$item,2);
1691: $key = &unescape($key);
1692: next if ($key =~ /^error: 2 /);
1693: $returnhash{$key}=&thaw_unescape($value);
1694: }
1695: my @esc_order = split(/\&/,$orderitems);
1696: foreach my $item (@esc_order) {
1697: push(@order,&unescape($item));
1698: }
1699: } else {
1700: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1701: }
1702: }
1703: return (\%returnhash,\@order);
1704: }
1705:
1.868 raeburn 1706: sub is_domainimage {
1707: my ($url) = @_;
1708: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1709: if (&domain($1) ne '') {
1710: return '1';
1711: }
1712: }
1713: return;
1714: }
1715:
1.899 raeburn 1716: sub inst_directory_query {
1717: my ($srch) = @_;
1718: my $udom = $srch->{'srchdomain'};
1719: my %results;
1720: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1721: my $outcome;
1.899 raeburn 1722: if ($homeserver ne '') {
1.904 albertel 1723: my $queryid=&reply("querysend:instdirsearch:".
1724: &escape($srch->{'srchby'}).':'.
1725: &escape($srch->{'srchterm'}).':'.
1726: &escape($srch->{'srchtype'}),$homeserver);
1727: my $host=&hostname($homeserver);
1728: if ($queryid !~/^\Q$host\E\_/) {
1729: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1730: return;
1731: }
1732: my $response = &get_query_reply($queryid);
1733: my $maxtries = 5;
1734: my $tries = 1;
1735: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1736: $response = &get_query_reply($queryid);
1737: $tries ++;
1738: }
1739:
1740: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1741: if ($response eq 'unavailable') {
1742: $outcome = $response;
1743: } else {
1744: $outcome = 'ok';
1745: my @matches = split(/\n/,$response);
1746: foreach my $match (@matches) {
1747: my ($key,$value) = split(/=/,$match);
1748: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1749: }
1.899 raeburn 1750: }
1751: }
1752: }
1.909 raeburn 1753: return ($outcome,%results);
1.899 raeburn 1754: }
1755:
1756: sub usersearch {
1757: my ($srch) = @_;
1758: my $dom = $srch->{'srchdomain'};
1759: my %results;
1760: my %libserv = &all_library();
1761: my $query = 'usersearch';
1762: foreach my $tryserver (keys(%libserv)) {
1763: if (&host_domain($tryserver) eq $dom) {
1764: my $host=&hostname($tryserver);
1765: my $queryid=
1.911 raeburn 1766: &reply("querysend:".&escape($query).':'.
1767: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1768: &escape($srch->{'srchtype'}).':'.
1769: &escape($srch->{'srchterm'}),$tryserver);
1770: if ($queryid !~/^\Q$host\E\_/) {
1771: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1772: next;
1.899 raeburn 1773: }
1774: my $reply = &get_query_reply($queryid);
1775: my $maxtries = 1;
1776: my $tries = 1;
1777: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1778: $reply = &get_query_reply($queryid);
1779: $tries ++;
1780: }
1781: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1782: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1783: } else {
1.911 raeburn 1784: my @matches;
1785: if ($reply =~ /\n/) {
1786: @matches = split(/\n/,$reply);
1787: } else {
1788: @matches = split(/\&/,$reply);
1789: }
1.899 raeburn 1790: foreach my $match (@matches) {
1791: my ($uname,$udom,%userhash);
1.911 raeburn 1792: foreach my $entry (split(/:/,$match)) {
1793: my ($key,$value) =
1794: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1795: $userhash{$key} = $value;
1796: if ($key eq 'username') {
1797: $uname = $value;
1798: } elsif ($key eq 'domain') {
1799: $udom = $value;
1.911 raeburn 1800: }
1.899 raeburn 1801: }
1802: $results{$uname.':'.$udom} = \%userhash;
1803: }
1804: }
1805: }
1806: }
1807: return %results;
1808: }
1809:
1.912 raeburn 1810: sub get_instuser {
1811: my ($udom,$uname,$id) = @_;
1812: my $homeserver = &domain($udom,'primary');
1813: my ($outcome,%results);
1814: if ($homeserver ne '') {
1815: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1816: &escape($id).':'.&escape($udom),$homeserver);
1817: my $host=&hostname($homeserver);
1818: if ($queryid !~/^\Q$host\E\_/) {
1819: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1820: return;
1821: }
1822: my $response = &get_query_reply($queryid);
1823: my $maxtries = 5;
1824: my $tries = 1;
1825: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1826: $response = &get_query_reply($queryid);
1827: $tries ++;
1828: }
1829: if (!&error($response) && $response ne 'refused') {
1830: if ($response eq 'unavailable') {
1831: $outcome = $response;
1832: } else {
1833: $outcome = 'ok';
1834: my @matches = split(/\n/,$response);
1835: foreach my $match (@matches) {
1836: my ($key,$value) = split(/=/,$match);
1837: $results{&unescape($key)} = &thaw_unescape($value);
1838: }
1839: }
1840: }
1841: }
1842: my %userinfo;
1843: if (ref($results{$uname}) eq 'HASH') {
1844: %userinfo = %{$results{$uname}};
1845: }
1846: return ($outcome,%userinfo);
1847: }
1848:
1849: sub inst_rulecheck {
1.923 raeburn 1850: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1851: my %returnhash;
1852: if ($udom ne '') {
1853: if (ref($rules) eq 'ARRAY') {
1854: @{$rules} = map {&escape($_);} (@{$rules});
1855: my $rulestr = join(':',@{$rules});
1856: my $homeserver=&domain($udom,'primary');
1857: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1858: my $response;
1859: if ($item eq 'username') {
1860: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1861: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1862: $homeserver));
1.923 raeburn 1863: } elsif ($item eq 'id') {
1864: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1865: ':'.&escape($id).':'.$rulestr,
1866: $homeserver));
1.945 raeburn 1867: } elsif ($item eq 'selfcreate') {
1868: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1869: &escape($udom).':'.&escape($uname).
1870: ':'.$rulestr,$homeserver));
1.923 raeburn 1871: }
1.912 raeburn 1872: if ($response ne 'refused') {
1873: my @pairs=split(/\&/,$response);
1874: foreach my $item (@pairs) {
1875: my ($key,$value)=split(/=/,$item,2);
1876: $key = &unescape($key);
1877: next if ($key =~ /^error: 2 /);
1878: $returnhash{$key}=&thaw_unescape($value);
1879: }
1880: }
1881: }
1882: }
1883: }
1884: return %returnhash;
1885: }
1886:
1887: sub inst_userrules {
1.923 raeburn 1888: my ($udom,$check) = @_;
1.912 raeburn 1889: my (%ruleshash,@ruleorder);
1890: if ($udom ne '') {
1891: my $homeserver=&domain($udom,'primary');
1892: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1893: my $response;
1894: if ($check eq 'id') {
1895: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1896: $homeserver);
1.943 raeburn 1897: } elsif ($check eq 'email') {
1898: $response=&reply('instemailrules:'.&escape($udom),
1899: $homeserver);
1.923 raeburn 1900: } else {
1901: $response=&reply('instuserrules:'.&escape($udom),
1902: $homeserver);
1903: }
1.912 raeburn 1904: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1905: ($response ne 'unknown_cmd') &&
1.912 raeburn 1906: ($response ne 'no_such_host')) {
1907: my ($hashitems,$orderitems) = split(/:/,$response);
1908: my @pairs=split(/\&/,$hashitems);
1909: foreach my $item (@pairs) {
1910: my ($key,$value)=split(/=/,$item,2);
1911: $key = &unescape($key);
1912: next if ($key =~ /^error: 2 /);
1913: $ruleshash{$key}=&thaw_unescape($value);
1914: }
1915: my @esc_order = split(/\&/,$orderitems);
1916: foreach my $item (@esc_order) {
1917: push(@ruleorder,&unescape($item));
1918: }
1919: }
1920: }
1921: }
1922: return (\%ruleshash,\@ruleorder);
1923: }
1924:
1.976 raeburn 1925: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1926:
1927: sub get_domain_defaults {
1928: my ($domain) = @_;
1929: my $cachetime = 60*60*24;
1930: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1931: if (defined($cached)) {
1932: if (ref($result) eq 'HASH') {
1933: return %{$result};
1934: }
1935: }
1936: my %domdefaults;
1937: my %domconfig =
1.989 raeburn 1938: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1939: 'requestcourses','inststatus',
1.1172.2.9! raeburn 1940: 'coursedefaults','usersessions',
! 1941: 'requestauthor'],$domain);
1.943 raeburn 1942: if (ref($domconfig{'defaults'}) eq 'HASH') {
1943: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1944: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1945: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1946: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1947: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 1948: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.943 raeburn 1949: } else {
1950: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1951: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1952: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1953: }
1.976 raeburn 1954: if (ref($domconfig{'quotas'}) eq 'HASH') {
1955: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1956: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1957: } else {
1958: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1959: }
1.1172.2.6 raeburn 1960: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 1961: foreach my $item (@usertools) {
1962: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1963: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1964: }
1965: }
1966: }
1.985 raeburn 1967: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1968: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1969: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1970: }
1971: }
1.1172.2.9! raeburn 1972: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
! 1973: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
! 1974: }
1.989 raeburn 1975: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1976: foreach my $item ('inststatustypes','inststatusorder') {
1977: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1978: }
1979: }
1.1047 raeburn 1980: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1981: foreach my $item ('canuse_pdfforms') {
1982: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
1983: }
1984: }
1.1073 raeburn 1985: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1986: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
1987: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
1988: }
1989: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
1990: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
1991: }
1992: }
1.943 raeburn 1993: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1994: $cachetime);
1995: return %domdefaults;
1996: }
1997:
1.344 www 1998: # --------------------------------------------------- Assign a key to a student
1999:
2000: sub assign_access_key {
1.364 www 2001: #
2002: # a valid key looks like uname:udom#comments
2003: # comments are being appended
2004: #
1.498 www 2005: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2006: $kdom=
1.620 albertel 2007: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2008: $knum=
1.620 albertel 2009: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2010: $cdom=
1.620 albertel 2011: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2012: $cnum=
1.620 albertel 2013: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2014: $udom=$env{'user.name'} unless (defined($udom));
2015: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2016: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2017: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2018: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2019: # assigned to this person
2020: # - this should not happen,
1.345 www 2021: # unless something went wrong
2022: # the first time around
2023: # ready to assign
1.364 www 2024: $logentry=$1.'; '.$logentry;
1.496 www 2025: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2026: $kdom,$knum) eq 'ok') {
1.345 www 2027: # key now belongs to user
1.346 www 2028: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2029: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2030: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2031: return 'ok';
2032: } else {
2033: return
2034: 'error: Count not permanently assign key, will need to be re-entered later.';
2035: }
2036: } else {
2037: return 'error: Could not assign key, try again later.';
2038: }
1.364 www 2039: } elsif (!$existing{$ckey}) {
1.345 www 2040: # the key does not exist
2041: return 'error: The key does not exist';
2042: } else {
2043: # the key is somebody else's
2044: return 'error: The key is already in use';
2045: }
1.344 www 2046: }
2047:
1.364 www 2048: # ------------------------------------------ put an additional comment on a key
2049:
2050: sub comment_access_key {
2051: #
2052: # a valid key looks like uname:udom#comments
2053: # comments are being appended
2054: #
2055: my ($ckey,$cdom,$cnum,$logentry)=@_;
2056: $cdom=
1.620 albertel 2057: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2058: $cnum=
1.620 albertel 2059: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2060: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2061: if ($existing{$ckey}) {
2062: $existing{$ckey}.='; '.$logentry;
2063: # ready to assign
1.367 www 2064: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2065: $cdom,$cnum) eq 'ok') {
2066: return 'ok';
2067: } else {
2068: return 'error: Count not store comment.';
2069: }
2070: } else {
2071: # the key does not exist
2072: return 'error: The key does not exist';
2073: }
2074: }
2075:
1.344 www 2076: # ------------------------------------------------------ Generate a set of keys
2077:
2078: sub generate_access_keys {
1.364 www 2079: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2080: $cdom=
1.620 albertel 2081: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2082: $cnum=
1.620 albertel 2083: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2084: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2085: unless (($cdom) && ($cnum)) { return 0; }
2086: if ($number>10000) { return 0; }
2087: sleep(2); # make sure don't get same seed twice
2088: srand(time()^($$+($$<<15))); # from "Programming Perl"
2089: my $total=0;
2090: for (my $i=1;$i<=$number;$i++) {
2091: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2092: sprintf("%lx",int(100000*rand)).'-'.
2093: sprintf("%lx",int(100000*rand));
2094: $newkey=~s/1/g/g; # folks mix up 1 and l
2095: $newkey=~s/0/h/g; # and also 0 and O
2096: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2097: if ($existing{$newkey}) {
2098: $i--;
2099: } else {
1.364 www 2100: if (&put('accesskeys',
2101: { $newkey => '# generated '.localtime().
1.620 albertel 2102: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2103: '; '.$logentry },
2104: $cdom,$cnum) eq 'ok') {
1.344 www 2105: $total++;
2106: }
2107: }
2108: }
1.620 albertel 2109: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2110: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2111: return $total;
2112: }
2113:
2114: # ------------------------------------------------------- Validate an accesskey
2115:
2116: sub validate_access_key {
2117: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2118: $cdom=
1.620 albertel 2119: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2120: $cnum=
1.620 albertel 2121: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2122: $udom=$env{'user.domain'} unless (defined($udom));
2123: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2124: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2125: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2126: }
2127:
2128: # ------------------------------------- Find the section of student in a course
1.652 albertel 2129: sub devalidate_getsection_cache {
2130: my ($udom,$unam,$courseid)=@_;
2131: my $hashid="$udom:$unam:$courseid";
2132: &devalidate_cache_new('getsection',$hashid);
2133: }
1.298 matthew 2134:
1.815 albertel 2135: sub courseid_to_courseurl {
2136: my ($courseid) = @_;
2137: #already url style courseid
2138: return $courseid if ($courseid =~ m{^/});
2139:
2140: if (exists($env{'course.'.$courseid.'.num'})) {
2141: my $cnum = $env{'course.'.$courseid.'.num'};
2142: my $cdom = $env{'course.'.$courseid.'.domain'};
2143: return "/$cdom/$cnum";
2144: }
2145:
2146: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2147: if (exists($courseinfo{'num'})) {
2148: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2149: }
2150:
2151: return undef;
2152: }
2153:
1.298 matthew 2154: sub getsection {
2155: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2156: my $cachetime=1800;
1.551 albertel 2157:
2158: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2159: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2160: if (defined($cached)) { return $result; }
2161:
1.298 matthew 2162: my %Pending;
2163: my %Expired;
2164: #
2165: # Each role can either have not started yet (pending), be active,
2166: # or have expired.
2167: #
2168: # If there is an active role, we are done.
2169: #
2170: # If there is more than one role which has not started yet,
2171: # choose the one which will start sooner
2172: # If there is one role which has not started yet, return it.
2173: #
2174: # If there is more than one expired role, choose the one which ended last.
2175: # If there is a role which has expired, return it.
2176: #
1.815 albertel 2177: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2178: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2179: foreach my $key (keys(%roleshash)) {
1.479 albertel 2180: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2181: my $section=$1;
2182: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2183: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2184: my $now=time;
1.548 albertel 2185: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2186: $Expired{$end}=$section;
2187: next;
2188: }
1.548 albertel 2189: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2190: $Pending{$start}=$section;
2191: next;
2192: }
1.599 albertel 2193: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2194: }
2195: #
2196: # Presumedly there will be few matching roles from the above
2197: # loop and the sorting time will be negligible.
2198: if (scalar(keys(%Pending))) {
2199: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2200: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2201: }
2202: if (scalar(keys(%Expired))) {
2203: my @sorted = sort {$a <=> $b} keys(%Expired);
2204: my $time = pop(@sorted);
1.599 albertel 2205: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2206: }
1.599 albertel 2207: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2208: }
1.70 www 2209:
1.599 albertel 2210: sub save_cache {
2211: &purge_remembered();
1.722 albertel 2212: #&Apache::loncommon::validate_page();
1.620 albertel 2213: undef(%env);
1.780 albertel 2214: undef($env_loaded);
1.599 albertel 2215: }
1.452 albertel 2216:
1.599 albertel 2217: my $to_remember=-1;
2218: my %remembered;
2219: my %accessed;
2220: my $kicks=0;
2221: my $hits=0;
1.849 albertel 2222: sub make_key {
2223: my ($name,$id) = @_;
1.872 albertel 2224: if (length($id) > 65
2225: && length(&escape($id)) > 200) {
2226: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2227: }
1.849 albertel 2228: return &escape($name.':'.$id);
2229: }
2230:
1.599 albertel 2231: sub devalidate_cache_new {
2232: my ($name,$id,$debug) = @_;
2233: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 2234: $id=&make_key($name,$id);
1.599 albertel 2235: $memcache->delete($id);
2236: delete($remembered{$id});
2237: delete($accessed{$id});
2238: }
2239:
2240: sub is_cached_new {
2241: my ($name,$id,$debug) = @_;
1.849 albertel 2242: $id=&make_key($name,$id);
1.599 albertel 2243: if (exists($remembered{$id})) {
1.1133 foxr 2244: if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
1.599 albertel 2245: $accessed{$id}=[&gettimeofday()];
2246: $hits++;
2247: return ($remembered{$id},1);
2248: }
2249: my $value = $memcache->get($id);
2250: if (!(defined($value))) {
2251: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2252: return (undef,undef);
1.416 albertel 2253: }
1.599 albertel 2254: if ($value eq '__undef__') {
2255: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2256: $value=undef;
2257: }
2258: &make_room($id,$value,$debug);
2259: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2260: return ($value,1);
2261: }
2262:
2263: sub do_cache_new {
2264: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 2265: $id=&make_key($name,$id);
1.599 albertel 2266: my $setvalue=$value;
2267: if (!defined($setvalue)) {
2268: $setvalue='__undef__';
2269: }
1.623 albertel 2270: if (!defined($time) ) {
2271: $time=600;
2272: }
1.599 albertel 2273: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2274: my $result = $memcache->set($id,$setvalue,$time);
2275: if (! $result) {
1.872 albertel 2276: &logthis("caching of id -> $id failed");
1.910 albertel 2277: $memcache->disconnect_all();
1.872 albertel 2278: }
1.600 albertel 2279: # need to make a copy of $value
1.919 albertel 2280: &make_room($id,$value,$debug);
1.599 albertel 2281: return $value;
2282: }
2283:
2284: sub make_room {
2285: my ($id,$value,$debug)=@_;
1.919 albertel 2286:
2287: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
2288: : $value;
1.599 albertel 2289: if ($to_remember<0) { return; }
2290: $accessed{$id}=[&gettimeofday()];
2291: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2292: my $to_kick;
2293: my $max_time=0;
2294: foreach my $other (keys(%accessed)) {
2295: if (&tv_interval($accessed{$other}) > $max_time) {
2296: $to_kick=$other;
2297: $max_time=&tv_interval($accessed{$other});
2298: }
2299: }
2300: delete($remembered{$to_kick});
2301: delete($accessed{$to_kick});
2302: $kicks++;
2303: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2304: return;
2305: }
2306:
1.599 albertel 2307: sub purge_remembered {
1.604 albertel 2308: #&logthis("Tossing ".scalar(keys(%remembered)));
2309: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2310: undef(%remembered);
2311: undef(%accessed);
1.428 albertel 2312: }
1.70 www 2313: # ------------------------------------- Read an entry from a user's environment
2314:
2315: sub userenvironment {
2316: my ($udom,$unam,@what)=@_;
1.976 raeburn 2317: my $items;
2318: foreach my $item (@what) {
2319: $items.=&escape($item).'&';
2320: }
2321: $items=~s/\&$//;
1.70 www 2322: my %returnhash=();
1.1009 raeburn 2323: my $uhome = &homeserver($unam,$udom);
2324: unless ($uhome eq 'no_host') {
2325: my @answer=split(/\&/,
2326: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2327: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2328: return %returnhash;
2329: }
1.1009 raeburn 2330: my $i;
2331: for ($i=0;$i<=$#what;$i++) {
2332: $returnhash{$what[$i]}=&unescape($answer[$i]);
2333: }
1.70 www 2334: }
2335: return %returnhash;
1.1 albertel 2336: }
2337:
1.617 albertel 2338: # ---------------------------------------------------------- Get a studentphoto
2339: sub studentphoto {
2340: my ($udom,$unam,$ext) = @_;
2341: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2342: if (defined($env{'request.course.id'})) {
1.708 raeburn 2343: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2344: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2345: return(&retrievestudentphoto($udom,$unam,$ext));
2346: } else {
2347: my ($result,$perm_reqd)=
1.707 albertel 2348: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2349: if ($result eq 'ok') {
2350: if (!($perm_reqd eq 'yes')) {
2351: return(&retrievestudentphoto($udom,$unam,$ext));
2352: }
2353: }
2354: }
2355: }
2356: } else {
2357: my ($result,$perm_reqd) =
1.707 albertel 2358: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2359: if ($result eq 'ok') {
2360: if (!($perm_reqd eq 'yes')) {
2361: return(&retrievestudentphoto($udom,$unam,$ext));
2362: }
2363: }
2364: }
2365: return '/adm/lonKaputt/lonlogo_broken.gif';
2366: }
2367:
2368: sub retrievestudentphoto {
2369: my ($udom,$unam,$ext,$type) = @_;
2370: my $home=&Apache::lonnet::homeserver($unam,$udom);
2371: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2372: if ($ret eq 'ok') {
2373: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2374: if ($type eq 'thumbnail') {
2375: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2376: }
2377: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2378: return $tokenurl;
2379: } else {
2380: if ($type eq 'thumbnail') {
2381: return '/adm/lonKaputt/genericstudent_tn.gif';
2382: } else {
2383: return '/adm/lonKaputt/lonlogo_broken.gif';
2384: }
1.617 albertel 2385: }
2386: }
2387:
1.263 www 2388: # -------------------------------------------------------------------- New chat
2389:
2390: sub chatsend {
1.724 raeburn 2391: my ($newentry,$anon,$group)=@_;
1.620 albertel 2392: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2393: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2394: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2395: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2396: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2397: &escape($newentry)).':'.$group,$chome);
1.292 www 2398: }
2399:
2400: # ------------------------------------------ Find current version of a resource
2401:
2402: sub getversion {
2403: my $fname=&clutter(shift);
2404: unless ($fname=~/^\/res\//) { return -1; }
2405: return ¤tversion(&filelocation('',$fname));
2406: }
2407:
2408: sub currentversion {
2409: my $fname=shift;
2410: my $author=$fname;
2411: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2412: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2413: my $home=&homeserver($uname,$udom);
1.292 www 2414: if ($home eq 'no_host') {
2415: return -1;
2416: }
1.1112 www 2417: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2418: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2419: return -1;
2420: }
1.1112 www 2421: return $answer;
1.263 www 2422: }
2423:
1.1111 www 2424: #
2425: # Return special version number of resource if set by override, empty otherwise
2426: #
2427: sub usedversion {
2428: my $fname=shift;
2429: unless ($fname) { $fname=$env{'request.uri'}; }
2430: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2431: if ($urlversion) { return $urlversion; }
2432: return '';
2433: }
2434:
1.1 albertel 2435: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2436:
1.1 albertel 2437: sub subscribe {
2438: my $fname=shift;
1.761 raeburn 2439: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2440: $fname=~s/[\n\r]//g;
1.1 albertel 2441: my $author=$fname;
2442: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2443: my ($udom,$uname)=split(/\//,$author);
2444: my $home=homeserver($uname,$udom);
1.335 albertel 2445: if ($home eq 'no_host') {
2446: return 'not_found';
1.1 albertel 2447: }
2448: my $answer=reply("sub:$fname",$home);
1.64 www 2449: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2450: $answer.=' by '.$home;
2451: }
1.1 albertel 2452: return $answer;
2453: }
2454:
1.8 www 2455: # -------------------------------------------------------------- Replicate file
2456:
2457: sub repcopy {
2458: my $filename=shift;
1.23 www 2459: $filename=~s/\/+/\//g;
1.1142 raeburn 2460: my $londocroot = $perlvar{'lonDocRoot'};
2461: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2462: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2463: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2464: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2465: return &repcopy_userfile($filename);
2466: }
1.532 albertel 2467: $filename=~s/[\n\r]//g;
1.8 www 2468: my $transname="$filename.in.transfer";
1.828 www 2469: # FIXME: this should flock
1.607 raeburn 2470: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2471: my $remoteurl=subscribe($filename);
1.64 www 2472: if ($remoteurl =~ /^con_lost by/) {
2473: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2474: return 'unavailable';
1.8 www 2475: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2476: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2477: return 'not_found';
1.64 www 2478: } elsif ($remoteurl =~ /^rejected by/) {
2479: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2480: return 'forbidden';
1.20 www 2481: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2482: return 'ok';
1.8 www 2483: } else {
1.290 www 2484: my $author=$filename;
2485: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2486: my ($udom,$uname)=split(/\//,$author);
2487: my $home=homeserver($uname,$udom);
2488: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2489: my @parts=split(/\//,$filename);
2490: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2491: if ($path ne "$londocroot/res") {
1.8 www 2492: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2493: return 'bad_request';
1.8 www 2494: }
2495: my $count;
2496: for ($count=5;$count<$#parts;$count++) {
2497: $path.="/$parts[$count]";
2498: if ((-e $path)!=1) {
2499: mkdir($path,0777);
2500: }
2501: }
2502: my $ua=new LWP::UserAgent;
2503: my $request=new HTTP::Request('GET',"$remoteurl");
2504: my $response=$ua->request($request,$transname);
2505: if ($response->is_error()) {
2506: unlink($transname);
2507: my $message=$response->status_line;
1.672 albertel 2508: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2509: ." LWP get: $message: $filename</font>");
1.607 raeburn 2510: return 'unavailable';
1.8 www 2511: } else {
1.16 www 2512: if ($remoteurl!~/\.meta$/) {
2513: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2514: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2515: if ($mresponse->is_error()) {
2516: unlink($filename.'.meta');
2517: &logthis(
1.672 albertel 2518: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2519: }
2520: }
1.8 www 2521: rename($transname,$filename);
1.607 raeburn 2522: return 'ok';
1.8 www 2523: }
1.290 www 2524: }
1.8 www 2525: }
1.330 www 2526: }
2527:
2528: # ------------------------------------------------ Get server side include body
2529: sub ssi_body {
1.381 albertel 2530: my ($filelink,%form)=@_;
1.606 matthew 2531: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2532: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2533: }
1.953 www 2534: my $output='';
2535: my $response;
1.980 raeburn 2536: if ($filelink=~/^https?\:/) {
1.954 raeburn 2537: ($output,$response)=&externalssi($filelink);
1.953 www 2538: } else {
1.1004 droeschl 2539: $filelink .= $filelink=~/\?/ ? '&' : '?';
2540: $filelink .= 'inhibitmenu=yes';
1.953 www 2541: ($output,$response)=&ssi($filelink,%form);
2542: }
1.778 albertel 2543: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2544: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2545: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2546: if (wantarray) {
2547: return ($output, $response);
2548: } else {
2549: return $output;
2550: }
1.8 www 2551: }
2552:
1.15 www 2553: # --------------------------------------------------------- Server Side Include
2554:
1.782 albertel 2555: sub absolute_url {
2556: my ($host_name) = @_;
2557: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2558: if ($host_name eq '') {
2559: $host_name = $ENV{'SERVER_NAME'};
2560: }
2561: return $protocol.$host_name;
2562: }
2563:
1.942 foxr 2564: #
2565: # Server side include.
2566: # Parameters:
2567: # fn Possibly encrypted resource name/id.
2568: # form Hash that describes how the rendering should be done
2569: # and other things.
1.944 foxr 2570: # Returns:
1.950 raeburn 2571: # Scalar context: The content of the response.
2572: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2573: #
1.15 www 2574: sub ssi {
2575:
1.944 foxr 2576: my ($fn,%form)=@_;
1.15 www 2577: my $ua=new LWP::UserAgent;
1.23 www 2578: my $request;
1.711 albertel 2579:
2580: $form{'no_update_last_known'}=1;
1.895 albertel 2581: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2582: if (%form) {
1.782 albertel 2583: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2584: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2585: } else {
1.782 albertel 2586: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2587: }
2588:
1.15 www 2589: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1172.2.2 raeburn 2590: my $response= $ua->request($request);
1.944 foxr 2591: if (wantarray) {
1.1172.2.3 raeburn 2592: return ($response->content, $response);
1.944 foxr 2593: } else {
1.1172.2.3 raeburn 2594: return $response->content;
1.942 foxr 2595: }
1.324 www 2596: }
2597:
2598: sub externalssi {
2599: my ($url)=@_;
2600: my $ua=new LWP::UserAgent;
2601: my $request=new HTTP::Request('GET',$url);
2602: my $response=$ua->request($request);
1.954 raeburn 2603: if (wantarray) {
2604: return ($response->content, $response);
2605: } else {
2606: return $response->content;
2607: }
1.15 www 2608: }
1.254 www 2609:
1.492 albertel 2610: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2611:
2612: sub allowuploaded {
2613: my ($srcurl,$url)=@_;
2614: $url=&clutter(&declutter($url));
2615: my $dir=$url;
2616: $dir=~s/\/[^\/]+$//;
2617: my %httpref=();
2618: my $httpurl=&hreflocation('',$url);
2619: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2620: &Apache::lonnet::appenv(\%httpref);
1.254 www 2621: }
1.477 raeburn 2622:
1.478 albertel 2623: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2624: # input: action, courseID, current domain, intended
1.637 raeburn 2625: # path to file, source of file, instruction to parse file for objects,
2626: # ref to hash for embedded objects,
2627: # ref to hash for codebase of java objects.
1.1095 raeburn 2628: # reference to scalar to accommodate mime type determined
2629: # from File::MMagic if $parser = parse.
1.637 raeburn 2630: #
1.485 raeburn 2631: # output: url to file (if action was uploaddoc),
2632: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2633: #
1.478 albertel 2634: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2635: # course.
1.477 raeburn 2636: #
1.478 albertel 2637: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2638: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2639: # course's home server.
1.477 raeburn 2640: #
1.478 albertel 2641: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2642: # be copied from $source (current location) to
2643: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2644: # and will then be copied to
2645: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2646: # course's home server.
1.485 raeburn 2647: #
1.481 raeburn 2648: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2649: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2650: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2651: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2652: # in course's home server.
1.637 raeburn 2653: #
1.477 raeburn 2654:
2655: sub process_coursefile {
1.1095 raeburn 2656: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
2657: $mimetype)=@_;
1.477 raeburn 2658: my $fetchresult;
1.638 albertel 2659: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2660: if ($action eq 'propagate') {
1.638 albertel 2661: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2662: $home);
1.481 raeburn 2663: } else {
1.477 raeburn 2664: my $fpath = '';
2665: my $fname = $file;
1.478 albertel 2666: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2667: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2668: my $filepath = &build_filepath($fpath);
1.481 raeburn 2669: if ($action eq 'copy') {
2670: if ($source eq '') {
2671: $fetchresult = 'no source file';
2672: return $fetchresult;
2673: } else {
2674: my $destination = $filepath.'/'.$fname;
2675: rename($source,$destination);
2676: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2677: $home);
1.481 raeburn 2678: }
2679: } elsif ($action eq 'uploaddoc') {
2680: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2681: print $fh $env{'form.'.$source};
1.481 raeburn 2682: close($fh);
1.637 raeburn 2683: if ($parser eq 'parse') {
1.1024 raeburn 2684: my $mm = new File::MMagic;
1.1095 raeburn 2685: my $type = $mm->checktype_filename($filepath.'/'.$fname);
2686: if ($type eq 'text/html') {
1.1024 raeburn 2687: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2688: unless ($parse_result eq 'ok') {
2689: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2690: }
1.637 raeburn 2691: }
1.1095 raeburn 2692: if (ref($mimetype)) {
2693: $$mimetype = $type;
2694: }
1.637 raeburn 2695: }
1.477 raeburn 2696: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2697: $home);
1.481 raeburn 2698: if ($fetchresult eq 'ok') {
2699: return '/uploaded/'.$fpath.'/'.$fname;
2700: } else {
2701: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2702: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2703: return '/adm/notfound.html';
2704: }
1.477 raeburn 2705: }
2706: }
1.485 raeburn 2707: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2708: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2709: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2710: }
2711: return $fetchresult;
2712: }
2713:
1.637 raeburn 2714: sub build_filepath {
2715: my ($fpath) = @_;
2716: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2717: unless ($fpath eq '') {
2718: my @parts=split('/',$fpath);
2719: foreach my $part (@parts) {
2720: $filepath.= '/'.$part;
2721: if ((-e $filepath)!=1) {
2722: mkdir($filepath,0777);
2723: }
2724: }
2725: }
2726: return $filepath;
2727: }
2728:
2729: sub store_edited_file {
1.638 albertel 2730: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2731: my $file = $primary_url;
2732: $file =~ s#^/uploaded/$docudom/$docuname/##;
2733: my $fpath = '';
2734: my $fname = $file;
2735: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2736: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2737: my $filepath = &build_filepath($fpath);
2738: open(my $fh,'>'.$filepath.'/'.$fname);
2739: print $fh $content;
2740: close($fh);
1.638 albertel 2741: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2742: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2743: $home);
1.637 raeburn 2744: if ($$fetchresult eq 'ok') {
2745: return '/uploaded/'.$fpath.'/'.$fname;
2746: } else {
1.638 albertel 2747: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2748: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2749: return '/adm/notfound.html';
2750: }
2751: }
2752:
1.531 albertel 2753: sub clean_filename {
1.831 albertel 2754: my ($fname,$args)=@_;
1.315 www 2755: # Replace Windows backslashes by forward slashes
1.257 www 2756: $fname=~s/\\/\//g;
1.831 albertel 2757: if (!$args->{'keep_path'}) {
2758: # Get rid of everything but the actual filename
2759: $fname=~s/^.*\/([^\/]+)$/$1/;
2760: }
1.315 www 2761: # Replace spaces by underscores
2762: $fname=~s/\s+/\_/g;
2763: # Replace all other weird characters by nothing
1.831 albertel 2764: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2765: # Replace all .\d. sequences with _\d. so they no longer look like version
2766: # numbers
2767: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2768: return $fname;
2769: }
1.1051 raeburn 2770: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
2771: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
2772: # image with the same aspect ratio as the original, but with dimensions which do
2773: # not exceed $resizewidth and $resizeheight.
2774:
1.984 neumanie 2775: sub resizeImage {
1.1051 raeburn 2776: my ($img_path,$resizewidth,$resizeheight) = @_;
2777: my $ima = Image::Magick->new;
2778: my $resized;
2779: if (-e $img_path) {
2780: $ima->Read($img_path);
2781: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
2782: my $width = $ima->Get('width');
2783: my $height = $ima->Get('height');
2784: if ($width > $resizewidth) {
2785: my $factor = $width/$resizewidth;
2786: my $newheight = $height/$factor;
2787: $ima->Scale(width=>$resizewidth,height=>$newheight);
2788: $resized = 1;
2789: }
2790: }
2791: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
2792: my $width = $ima->Get('width');
2793: my $height = $ima->Get('height');
2794: if ($height > $resizeheight) {
2795: my $factor = $height/$resizeheight;
2796: my $newwidth = $width/$factor;
2797: $ima->Scale(width=>$newwidth,height=>$resizeheight);
2798: $resized = 1;
2799: }
2800: }
2801: if ($resized) {
2802: $ima->Write($img_path);
2803: }
2804: }
2805: return;
1.977 amueller 2806: }
2807:
1.608 albertel 2808: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2809: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 2810: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 2811: # $context - possible values: coursedoc, existingfile, overwrite,
2812: # canceloverwrite, or ''.
2813: # if 'coursedoc': upload to the current course
2814: # if 'existingfile': write file to tmp/overwrites directory
2815: # if 'canceloverwrite': delete file written to tmp/overwrites directory
2816: # $context is passed as argument to &finishuserfileupload
1.686 albertel 2817: # $subdir - directory in userfile to store the file into
1.858 raeburn 2818: # $parser - instruction to parse file for objects ($parser = parse)
2819: # $allfiles - reference to hash for embedded objects
2820: # $codebase - reference to hash for codebase of java objects
2821: # $desuname - username for permanent storage of uploaded file
2822: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2823: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2824: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 2825: # $resizewidth - width (pixels) to which to resize uploaded image
2826: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 2827: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 2828: # from File::MMagic.
1.858 raeburn 2829: #
1.686 albertel 2830: # output: url of file in userspace, or error: <message>
2831: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2832:
1.531 albertel 2833: sub userfileupload {
1.1090 raeburn 2834: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 2835: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 2836: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2837: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2838: $fname=&clean_filename($fname);
1.1090 raeburn 2839: # See if there is anything left
1.257 www 2840: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 2841: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
2842: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
2843: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
2844: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 2845: my $now = time;
1.1090 raeburn 2846: my $filepath;
1.1095 raeburn 2847: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 2848: $filepath = 'tmp/helprequests/'.$now;
2849: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
2850: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2851: '_'.$env{'user.domain'}.'/pending';
2852: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
2853: my ($docuname,$docudom);
2854: if ($destudom) {
2855: $docudom = $destudom;
2856: } else {
2857: $docudom = $env{'user.domain'};
2858: }
2859: if ($destuname) {
2860: $docuname = $destuname;
2861: } else {
2862: $docuname = $env{'user.name'};
2863: }
2864: if (exists($env{'form.group'})) {
2865: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2866: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2867: }
2868: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
2869: if ($context eq 'canceloverwrite') {
2870: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
2871: if (-e $tempfile) {
2872: my @info = stat($tempfile);
2873: if ($info[9] eq $env{'form.timestamp'}) {
2874: unlink($tempfile);
2875: }
2876: }
2877: return;
1.523 raeburn 2878: }
2879: }
1.1090 raeburn 2880: # Create the directory if not present
1.741 raeburn 2881: my @parts=split(/\//,$filepath);
2882: my $fullpath = $perlvar{'lonDaemons'};
2883: for (my $i=0;$i<@parts;$i++) {
2884: $fullpath .= '/'.$parts[$i];
2885: if ((-e $fullpath)!=1) {
2886: mkdir($fullpath,0777);
2887: }
2888: }
2889: open(my $fh,'>'.$fullpath.'/'.$fname);
2890: print $fh $env{'form.'.$formname};
2891: close($fh);
1.1090 raeburn 2892: if ($context eq 'existingfile') {
2893: my @info = stat($fullpath.'/'.$fname);
2894: return ($fullpath.'/'.$fname,$info[9]);
2895: } else {
2896: return $fullpath.'/'.$fname;
2897: }
1.523 raeburn 2898: }
1.995 raeburn 2899: if ($subdir eq 'scantron') {
2900: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 2901: } else {
1.995 raeburn 2902: $fname="$subdir/$fname";
2903: }
1.1090 raeburn 2904: if ($context eq 'coursedoc') {
1.638 albertel 2905: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2906: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2907: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2908: return &finishuserfileupload($docuname,$docudom,
2909: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 2910: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 2911: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 2912: } else {
1.620 albertel 2913: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2914: return &process_coursefile('uploaddoc',$docuname,$docudom,
2915: $fname,$formname,$parser,
1.1095 raeburn 2916: $allfiles,$codebase,$mimetype);
1.481 raeburn 2917: }
1.719 banghart 2918: } elsif (defined($destuname)) {
2919: my $docuname=$destuname;
2920: my $docudom=$destudom;
1.860 raeburn 2921: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2922: $parser,$allfiles,$codebase,
1.1051 raeburn 2923: $thumbwidth,$thumbheight,
1.1095 raeburn 2924: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 2925: } else {
1.638 albertel 2926: my $docuname=$env{'user.name'};
2927: my $docudom=$env{'user.domain'};
1.714 raeburn 2928: if (exists($env{'form.group'})) {
2929: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2930: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2931: }
1.860 raeburn 2932: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2933: $parser,$allfiles,$codebase,
1.1051 raeburn 2934: $thumbwidth,$thumbheight,
1.1095 raeburn 2935: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 2936: }
1.271 www 2937: }
2938:
2939: sub finishuserfileupload {
1.860 raeburn 2940: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 2941: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 2942: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2943: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2944:
1.860 raeburn 2945: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2946: $file=$fname;
2947: if ($fname=~m|/|) {
2948: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2949: $path.=$fnamepath.'/';
2950: }
1.259 www 2951: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2952: my $count;
2953: for ($count=4;$count<=$#parts;$count++) {
2954: $filepath.="/$parts[$count]";
2955: if ((-e $filepath)!=1) {
2956: mkdir($filepath,0777);
2957: }
2958: }
1.984 neumanie 2959:
1.258 www 2960: # Save the file
2961: {
1.701 albertel 2962: if (!open(FH,'>'.$filepath.'/'.$file)) {
2963: &logthis('Failed to create '.$filepath.'/'.$file);
2964: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2965: return '/adm/notfound.html';
2966: }
1.1090 raeburn 2967: if ($context eq 'overwrite') {
1.1117 foxr 2968: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 2969: my $target = $filepath.'/'.$file;
2970: if (-e $source) {
2971: my @info = stat($source);
2972: if ($info[9] eq $env{'form.timestamp'}) {
2973: unless (&File::Copy::move($source,$target)) {
2974: &logthis('Failed to overwrite '.$filepath.'/'.$file);
2975: return "Moving from $source failed";
2976: }
2977: } else {
2978: return "Temporary file: $source had unexpected date/time for last modification";
2979: }
2980: } else {
2981: return "Temporary file: $source missing";
2982: }
2983: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 2984: &logthis('Failed to write to '.$filepath.'/'.$file);
2985: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2986: return '/adm/notfound.html';
2987: }
1.570 albertel 2988: close(FH);
1.1051 raeburn 2989: if ($resizewidth && $resizeheight) {
2990: my $mm = new File::MMagic;
2991: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
2992: if ($mime_type =~ m{^image/}) {
2993: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
2994: }
1.977 amueller 2995: }
1.258 www 2996: }
1.1152 raeburn 2997: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
2998: if (ref($mimetype)) {
2999: if ($$mimetype eq '') {
3000: my $mm = new File::MMagic;
3001: my $type = $mm->checktype_filename($filepath.'/'.$file);
3002: $$mimetype = $type;
3003: }
3004: }
3005: }
1.637 raeburn 3006: if ($parser eq 'parse') {
1.1152 raeburn 3007: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3008: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3009: $allfiles,$codebase);
3010: unless ($parse_result eq 'ok') {
3011: &logthis('Failed to parse '.$filepath.$file.
3012: ' for embedded media: '.$parse_result);
3013: }
1.637 raeburn 3014: }
3015: }
1.860 raeburn 3016: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3017: my $input = $filepath.'/'.$file;
3018: my $output = $filepath.'/'.'tn-'.$file;
3019: my $thumbsize = $thumbwidth.'x'.$thumbheight;
3020: system("convert -sample $thumbsize $input $output");
3021: if (-e $filepath.'/'.'tn-'.$file) {
3022: $fetchthumb = 1;
3023: }
3024: }
1.858 raeburn 3025:
1.259 www 3026: # Notify homeserver to grep it
3027: #
1.984 neumanie 3028: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3029: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3030: if ($fetchresult eq 'ok') {
1.860 raeburn 3031: if ($fetchthumb) {
3032: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3033: if ($thumbresult ne 'ok') {
3034: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3035: $docuhome.': '.$thumbresult);
3036: }
3037: }
1.259 www 3038: #
1.258 www 3039: # Return the URL to it
1.494 albertel 3040: return '/uploaded/'.$path.$file;
1.263 www 3041: } else {
1.494 albertel 3042: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3043: ': '.$fetchresult);
1.263 www 3044: return '/adm/notfound.html';
1.858 raeburn 3045: }
1.493 albertel 3046: }
3047:
1.637 raeburn 3048: sub extract_embedded_items {
1.961 raeburn 3049: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3050: my @state = ();
1.1164 raeburn 3051: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3052: my %javafiles = (
3053: codebase => '',
3054: code => '',
3055: archive => ''
3056: );
3057: my %mediafiles = (
3058: src => '',
3059: movie => '',
3060: );
1.648 raeburn 3061: my $p;
3062: if ($content) {
3063: $p = HTML::LCParser->new($content);
3064: } else {
1.961 raeburn 3065: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3066: }
1.641 albertel 3067: while (my $t=$p->get_token()) {
1.640 albertel 3068: if ($t->[0] eq 'S') {
3069: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3070: push(@state, $tagname);
1.648 raeburn 3071: if (lc($tagname) eq 'allow') {
3072: &add_filetype($allfiles,$attr->{'src'},'src');
3073: }
1.640 albertel 3074: if (lc($tagname) eq 'img') {
3075: &add_filetype($allfiles,$attr->{'src'},'src');
3076: }
1.886 albertel 3077: if (lc($tagname) eq 'a') {
3078: &add_filetype($allfiles,$attr->{'href'},'href');
3079: }
1.645 raeburn 3080: if (lc($tagname) eq 'script') {
1.1164 raeburn 3081: my $src;
1.645 raeburn 3082: if ($attr->{'archive'} =~ /\.jar$/i) {
3083: &add_filetype($allfiles,$attr->{'archive'},'archive');
3084: } else {
1.1164 raeburn 3085: if ($attr->{'src'} ne '') {
3086: $src = $attr->{'src'};
3087: &add_filetype($allfiles,$src,'src');
3088: }
3089: }
3090: my $text = $p->get_trimmed_text();
3091: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3092: my @swfargs = split(/,/,$1);
3093: foreach my $item (@swfargs) {
3094: $item =~ s/["']//g;
3095: $item =~ s/^\s+//;
3096: $item =~ s/\s+$//;
3097: }
3098: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3099: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3100: push(@{$related{$swfargs[0]}},$swfargs[2]);
3101: } else {
3102: $related{$swfargs[0]} = [$swfargs[2]];
3103: }
3104: }
1.645 raeburn 3105: }
3106: }
3107: if (lc($tagname) eq 'link') {
3108: if (lc($attr->{'rel'}) eq 'stylesheet') {
3109: &add_filetype($allfiles,$attr->{'href'},'href');
3110: }
3111: }
1.640 albertel 3112: if (lc($tagname) eq 'object' ||
3113: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3114: foreach my $item (keys(%javafiles)) {
3115: $javafiles{$item} = '';
3116: }
1.1164 raeburn 3117: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3118: $lastids{lc($tagname)} = $attr->{'id'};
3119: }
1.640 albertel 3120: }
3121: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3122: my $name = lc($attr->{'name'});
3123: foreach my $item (keys(%javafiles)) {
3124: if ($name eq $item) {
3125: $javafiles{$item} = $attr->{'value'};
3126: last;
3127: }
3128: }
1.1164 raeburn 3129: my $pathfrom;
1.640 albertel 3130: foreach my $item (keys(%mediafiles)) {
3131: if ($name eq $item) {
1.1164 raeburn 3132: $pathfrom = $attr->{'value'};
3133: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3134: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3135: last;
3136: }
3137: }
1.1164 raeburn 3138: if ($name eq 'flashvars') {
3139: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3140: }
3141: if ($pathfrom ne '') {
3142: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3143: $pathfrom);
3144: }
1.640 albertel 3145: }
3146: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3147: foreach my $item (keys(%javafiles)) {
3148: if ($attr->{$item}) {
3149: $javafiles{$item} = $attr->{$item};
3150: last;
3151: }
3152: }
3153: foreach my $item (keys(%mediafiles)) {
3154: if ($attr->{$item}) {
3155: &add_filetype($allfiles,$attr->{$item},$item);
3156: last;
3157: }
3158: }
1.1164 raeburn 3159: if (lc($tagname) eq 'embed') {
3160: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3161: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3162: $attr->{'src'});
3163: }
3164: }
1.640 albertel 3165: }
1.1164 raeburn 3166: if ($t->[4] =~ m{/>$}) {
3167: pop(@state);
3168: }
1.640 albertel 3169: } elsif ($t->[0] eq 'E') {
3170: my ($tagname) = ($t->[1]);
3171: if ($javafiles{'codebase'} ne '') {
3172: $javafiles{'codebase'} .= '/';
3173: }
3174: if (lc($tagname) eq 'applet' ||
3175: lc($tagname) eq 'object' ||
3176: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3177: ) {
3178: foreach my $item (keys(%javafiles)) {
3179: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3180: my $file=$javafiles{'codebase'}.$javafiles{$item};
3181: &add_filetype($allfiles,$file,$item);
3182: }
3183: }
3184: }
3185: pop @state;
3186: }
3187: }
1.1164 raeburn 3188: foreach my $id (sort(keys(%flashvars))) {
3189: if ($shockwave{$id} ne '') {
3190: my @pairs = split(/\&/,$flashvars{$id});
3191: foreach my $pair (@pairs) {
3192: my ($key,$value) = split(/\=/,$pair);
3193: if ($key eq 'thumb') {
3194: &add_filetype($allfiles,$value,$key);
3195: } elsif ($key eq 'content') {
3196: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3197: my ($ext) = ($value =~ /\.([^.]+)$/);
3198: if ($ext ne '') {
3199: &add_filetype($allfiles,$path.$value,$ext);
3200: }
3201: }
3202: }
3203: }
3204: }
1.637 raeburn 3205: return 'ok';
3206: }
3207:
1.639 albertel 3208: sub add_filetype {
3209: my ($allfiles,$file,$type)=@_;
3210: if (exists($allfiles->{$file})) {
3211: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3212: push(@{$allfiles->{$file}}, &escape($type));
3213: }
3214: } else {
3215: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3216: }
3217: }
3218:
1.1164 raeburn 3219: sub embedded_dependency {
3220: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3221: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3222: if (($identifier ne '') &&
3223: (ref($related->{$identifier}) eq 'ARRAY') &&
3224: ($pathfrom ne '')) {
3225: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3226: foreach my $dep (@{$related->{$identifier}}) {
3227: &add_filetype($allfiles,$path.$dep,'object');
3228: }
3229: }
3230: }
3231: return;
3232: }
3233:
1.493 albertel 3234: sub removeuploadedurl {
1.984 neumanie 3235: my ($url)=@_;
3236: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3237: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3238: }
3239:
3240: sub removeuserfile {
3241: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3242: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3243: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3244: if ($result eq 'ok') {
1.798 raeburn 3245: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3246: my $metafile = $fname.'.meta';
3247: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3248: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3249: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3250: my $sqlresult =
1.823 albertel 3251: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3252: 'portfolio_metadata',$group,
3253: 'delete');
1.798 raeburn 3254: }
3255: }
3256: return $result;
1.257 www 3257: }
1.15 www 3258:
1.530 albertel 3259: sub mkdiruserfile {
3260: my ($docuname,$docudom,$dir)=@_;
3261: my $home=&homeserver($docuname,$docudom);
3262: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3263: }
3264:
1.531 albertel 3265: sub renameuserfile {
3266: my ($docuname,$docudom,$old,$new)=@_;
3267: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3268: my $result = &reply("renameuserfile:$docudom:$docuname:".
3269: &escape("$old").':'.&escape("$new"),$home);
3270: if ($result eq 'ok') {
3271: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3272: my $oldmeta = $old.'.meta';
3273: my $newmeta = $new.'.meta';
3274: my $metaresult =
3275: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3276: my $url = "/uploaded/$docudom/$docuname/$old";
3277: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3278: my $sqlresult =
1.823 albertel 3279: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3280: 'portfolio_metadata',$group,
3281: 'delete');
1.798 raeburn 3282: }
3283: }
3284: return $result;
1.531 albertel 3285: }
3286:
1.14 www 3287: # ------------------------------------------------------------------------- Log
3288:
3289: sub log {
3290: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3291: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3292: }
3293:
3294: # ------------------------------------------------------------------ Course Log
1.352 www 3295: #
3296: # This routine flushes several buffers of non-mission-critical nature
3297: #
1.157 www 3298:
3299: sub flushcourselogs {
1.352 www 3300: &logthis('Flushing log buffers');
3301: #
3302: # course logs
3303: # This is a log of all transactions in a course, which can be used
3304: # for data mining purposes
3305: #
3306: # It also collects the courseid database, which lists last transaction
3307: # times and course titles for all courseids
3308: #
3309: my %courseidbuffer=();
1.921 raeburn 3310: foreach my $crsid (keys(%courselogs)) {
1.352 www 3311: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3312: &escape($courselogs{$crsid}),
3313: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3314: delete $courselogs{$crsid};
3315: } else {
3316: &logthis('Failed to flush log buffer for '.$crsid);
3317: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3318: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3319: " exceeded maximum size, deleting.</font>");
3320: delete $courselogs{$crsid};
3321: }
1.352 www 3322: }
1.920 raeburn 3323: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3324: 'description' => $coursedescrbuf{$crsid},
3325: 'inst_code' => $courseinstcodebuf{$crsid},
3326: 'type' => $coursetypebuf{$crsid},
3327: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3328: };
1.191 harris41 3329: }
1.352 www 3330: #
3331: # Write course id database (reverse lookup) to homeserver of courses
3332: # Is used in pickcourse
3333: #
1.840 albertel 3334: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3335: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3336: $courseidbuffer{$crs_home},
3337: $crs_home,'timeonly');
1.352 www 3338: }
3339: #
3340: # File accesses
3341: # Writes to the dynamic metadata of resources to get hit counts, etc.
3342: #
1.449 matthew 3343: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3344: if ($entry =~ /___count$/) {
3345: my ($dom,$name);
1.807 albertel 3346: ($dom,$name,undef)=
1.811 albertel 3347: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3348: if (! defined($dom) || $dom eq '' ||
3349: ! defined($name) || $name eq '') {
1.620 albertel 3350: my $cid = $env{'request.course.id'};
3351: $dom = $env{'request.'.$cid.'.domain'};
3352: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3353: }
1.450 matthew 3354: my $value = $accesshash{$entry};
3355: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3356: my %temphash=($url => $value);
1.449 matthew 3357: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3358: if ($result eq 'ok') {
3359: delete $accesshash{$entry};
3360: }
3361: } else {
1.811 albertel 3362: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 3363: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 3364: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 3365: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
3366: delete $accesshash{$entry};
3367: }
1.185 www 3368: }
1.191 harris41 3369: }
1.352 www 3370: #
3371: # Roles
3372: # Reverse lookup of user roles for course faculty/staff and co-authorship
3373: #
1.800 albertel 3374: foreach my $entry (keys(%userrolehash)) {
1.351 www 3375: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 3376: split(/\:/,$entry);
3377: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 3378: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 3379: $rudom,$runame) eq 'ok') {
3380: delete $userrolehash{$entry};
3381: }
3382: }
1.662 raeburn 3383: #
3384: # Reverse lookup of domain roles (dc, ad, li, sc, au)
3385: #
3386: my %domrolebuffer = ();
1.1000 raeburn 3387: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 3388: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 3389: if ($domrolebuffer{$rudom}) {
3390: $domrolebuffer{$rudom}.='&'.&escape($entry).
3391: '='.&escape($domainrolehash{$entry});
3392: } else {
3393: $domrolebuffer{$rudom}.=&escape($entry).
3394: '='.&escape($domainrolehash{$entry});
3395: }
3396: delete $domainrolehash{$entry};
3397: }
3398: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 3399: my %servers = &get_servers($dom,'library');
3400: foreach my $tryserver (keys(%servers)) {
3401: unless (&reply('domroleput:'.$dom.':'.
3402: $domrolebuffer{$dom},$tryserver) eq 'ok') {
3403: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
3404: }
1.662 raeburn 3405: }
3406: }
1.186 www 3407: $dumpcount++;
1.157 www 3408: }
3409:
3410: sub courselog {
3411: my $what=shift;
1.158 www 3412: $what=time.':'.$what;
1.620 albertel 3413: unless ($env{'request.course.id'}) { return ''; }
3414: $coursedombuf{$env{'request.course.id'}}=
3415: $env{'course.'.$env{'request.course.id'}.'.domain'};
3416: $coursenumbuf{$env{'request.course.id'}}=
3417: $env{'course.'.$env{'request.course.id'}.'.num'};
3418: $coursehombuf{$env{'request.course.id'}}=
3419: $env{'course.'.$env{'request.course.id'}.'.home'};
3420: $coursedescrbuf{$env{'request.course.id'}}=
3421: $env{'course.'.$env{'request.course.id'}.'.description'};
3422: $courseinstcodebuf{$env{'request.course.id'}}=
3423: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3424: $courseownerbuf{$env{'request.course.id'}}=
3425: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3426: $coursetypebuf{$env{'request.course.id'}}=
3427: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3428: if (defined $courselogs{$env{'request.course.id'}}) {
3429: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3430: } else {
1.620 albertel 3431: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3432: }
1.620 albertel 3433: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3434: &flushcourselogs();
3435: }
1.158 www 3436: }
3437:
3438: sub courseacclog {
3439: my $fnsymb=shift;
1.620 albertel 3440: unless ($env{'request.course.id'}) { return ''; }
3441: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 3442: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 3443: $what.=':POST';
1.583 matthew 3444: # FIXME: Probably ought to escape things....
1.800 albertel 3445: foreach my $key (keys(%env)) {
3446: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3447: my $formitem = $1;
3448: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3449: $what.=':'.$formitem.'='.$env{$key};
3450: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3451: $what.=':'.$formitem.'='.$env{$key};
3452: }
1.158 www 3453: }
1.191 harris41 3454: }
1.583 matthew 3455: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3456: # FIXME: We should not be depending on a form parameter that someone
3457: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3458: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3459: $what.= ':POST';
3460: # FIXME: Probably ought to escape things....
3461: foreach my $element ('courseexp','crsfulltext','crsrelated',
3462: 'crsdiscuss') {
1.620 albertel 3463: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3464: }
3465: }
1.158 www 3466: }
3467: &courselog($what);
1.149 www 3468: }
3469:
1.185 www 3470: sub countacc {
3471: my $url=&declutter(shift);
1.458 matthew 3472: return if (! defined($url) || $url eq '');
1.620 albertel 3473: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 3474: #
3475: # Mark that this url was used in this course
3476: #
1.620 albertel 3477: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 3478: #
3479: # Increase the access count for this resource in this child process
3480: #
1.281 www 3481: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3482: $accesshash{$key}++;
1.185 www 3483: }
1.349 www 3484:
1.361 www 3485: sub linklog {
3486: my ($from,$to)=@_;
3487: $from=&declutter($from);
3488: $to=&declutter($to);
3489: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3490: $accesshash{$to.'___'.$from.'___goto'}=1;
3491: }
1.1160 www 3492:
3493: sub statslog {
3494: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
3495: if ($users<2) { return; }
3496: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
3497: 'course' => $env{'request.course.id'},
3498: 'sections' => '"all"',
3499: 'num_students' => $users,
3500: 'part' => $part,
3501: 'symb' => $symb,
3502: 'mean_tries' => $av_attempts,
3503: 'deg_of_diff' => $degdiff});
3504: foreach my $key (keys(%dynstore)) {
3505: $accesshash{$key}=$dynstore{$key};
3506: }
3507: }
1.361 www 3508:
1.349 www 3509: sub userrolelog {
3510: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 3511: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 3512: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3513: $userrolehash
3514: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3515: =$tend.':'.$tstart;
1.662 raeburn 3516: }
1.1169 droeschl 3517: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 3518: $userrolehash
3519: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3520: =$tend.':'.$tstart;
3521: }
1.1169 droeschl 3522: if ($trole =~ /^(dc|ad|li|au|dg|sc)/ ) {
1.662 raeburn 3523: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3524: $domainrolehash
3525: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3526: = $tend.':'.$tstart;
3527: }
1.351 www 3528: }
3529:
1.957 raeburn 3530: sub courserolelog {
3531: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1172.2.9! raeburn 3532: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
! 3533: my $cdom = $1;
! 3534: my $cnum = $2;
! 3535: my $sec = $3;
! 3536: my $namespace = 'rolelog';
! 3537: my %storehash = (
! 3538: role => $trole,
! 3539: start => $tstart,
! 3540: end => $tend,
! 3541: selfenroll => $selfenroll,
! 3542: context => $context,
! 3543: );
! 3544: if ($trole eq 'gr') {
! 3545: $namespace = 'groupslog';
! 3546: $storehash{'group'} = $sec;
! 3547: } else {
! 3548: $storehash{'section'} = $sec;
! 3549: }
! 3550: &write_log('course',$namespace,\%storehash,$delflag,$username,
! 3551: $domain,$cnum,$cdom);
! 3552: if (($trole ne 'st') || ($sec ne '')) {
! 3553: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 3554: }
3555: }
3556: return;
3557: }
3558:
1.1172.2.9! raeburn 3559: sub domainrolelog {
! 3560: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
! 3561: if ($area =~ m{^/($match_domain)/$}) {
! 3562: my $cdom = $1;
! 3563: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
! 3564: my $namespace = 'rolelog';
! 3565: my %storehash = (
! 3566: role => $trole,
! 3567: start => $tstart,
! 3568: end => $tend,
! 3569: context => $context,
! 3570: );
! 3571: &write_log('domain',$namespace,\%storehash,$delflag,$username,
! 3572: $domain,$domconfiguser,$cdom);
! 3573: }
! 3574: return;
! 3575:
! 3576: }
! 3577:
! 3578: sub coauthorrolelog {
! 3579: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
! 3580: if ($area =~ m{^/($match_domain)/($match_username)$}) {
! 3581: my $audom = $1;
! 3582: my $auname = $2;
! 3583: my $namespace = 'rolelog';
! 3584: my %storehash = (
! 3585: role => $trole,
! 3586: start => $tstart,
! 3587: end => $tend,
! 3588: context => $context,
! 3589: );
! 3590: &write_log('author',$namespace,\%storehash,$delflag,$username,
! 3591: $domain,$auname,$audom);
! 3592: }
! 3593: return;
! 3594: }
! 3595:
1.351 www 3596: sub get_course_adv_roles {
1.948 raeburn 3597: my ($cid,$codes) = @_;
1.620 albertel 3598: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 3599: my %coursehash=&coursedescription($cid);
1.988 raeburn 3600: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 3601: my %nothide=();
1.800 albertel 3602: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 3603: if ($user !~ /:/) {
3604: $nothide{join(':',split(/[\@]/,$user))}=1;
3605: } else {
3606: $nothide{$user}=1;
3607: }
1.470 www 3608: }
1.351 www 3609: my %returnhash=();
3610: my %dumphash=
3611: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
3612: my $now=time;
1.997 raeburn 3613: my %privileged;
1.1000 raeburn 3614: foreach my $entry (keys(%dumphash)) {
1.800 albertel 3615: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 3616: if (($tstart) && ($tstart<0)) { next; }
3617: if (($tend) && ($tend<$now)) { next; }
3618: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 3619: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 3620: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 3621: unless (ref($privileged{$domain}) eq 'HASH') {
3622: my %dompersonnel =
1.998 raeburn 3623: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3624: $privileged{$domain} = {};
3625: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3626: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3627: foreach my $user (keys(%{$dompersonnel{$server}})) {
3628: my ($trole,$uname,$udom) = split(/:/,$user);
3629: $privileged{$udom}{$uname} = 1;
3630: }
3631: }
3632: }
3633: }
3634: if ((exists($privileged{$domain}{$username})) &&
3635: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3636: if ($role eq 'cr') { next; }
1.948 raeburn 3637: if ($codes) {
3638: if ($section) { $role .= ':'.$section; }
3639: if ($returnhash{$role}) {
3640: $returnhash{$role}.=','.$username.':'.$domain;
3641: } else {
3642: $returnhash{$role}=$username.':'.$domain;
3643: }
1.351 www 3644: } else {
1.988 raeburn 3645: my $key=&plaintext($role,$crstype);
1.973 bisitz 3646: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3647: if ($returnhash{$key}) {
3648: $returnhash{$key}.=','.$username.':'.$domain;
3649: } else {
3650: $returnhash{$key}=$username.':'.$domain;
3651: }
1.351 www 3652: }
1.948 raeburn 3653: }
1.400 www 3654: return %returnhash;
3655: }
3656:
3657: sub get_my_roles {
1.937 raeburn 3658: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3659: unless (defined($uname)) { $uname=$env{'user.name'}; }
3660: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3661: my (%dumphash,%nothide);
1.1086 raeburn 3662: if ($context eq 'userroles') {
1.1166 raeburn 3663: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 3664: } else {
3665: %dumphash=
1.400 www 3666: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3667: if ($hidepriv) {
3668: my %coursehash=&coursedescription($udom.'_'.$uname);
3669: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3670: if ($user !~ /:/) {
3671: $nothide{join(':',split(/[\@]/,$user))} = 1;
3672: } else {
3673: $nothide{$user} = 1;
3674: }
3675: }
3676: }
1.858 raeburn 3677: }
1.400 www 3678: my %returnhash=();
3679: my $now=time;
1.999 raeburn 3680: my %privileged;
1.800 albertel 3681: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3682: my ($role,$tend,$tstart);
3683: if ($context eq 'userroles') {
1.1149 raeburn 3684: next if ($entry =~ /^rolesdef/);
1.867 raeburn 3685: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3686: } else {
3687: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3688: }
1.400 www 3689: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3690: my $status = 'active';
1.939 raeburn 3691: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3692: $status = 'previous';
3693: }
3694: if (($tstart) && ($now<$tstart)) {
3695: $status = 'future';
3696: }
3697: if (ref($types) eq 'ARRAY') {
3698: if (!grep(/^\Q$status\E$/,@{$types})) {
3699: next;
3700: }
3701: } else {
3702: if ($status ne 'active') {
3703: next;
3704: }
3705: }
1.867 raeburn 3706: my ($rolecode,$username,$domain,$section,$area);
3707: if ($context eq 'userroles') {
1.1172.2.9! raeburn 3708: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 3709: (undef,$domain,$username,$section) = split(/\//,$area);
3710: } else {
3711: ($role,$username,$domain,$section) = split(/\:/,$entry);
3712: }
1.832 raeburn 3713: if (ref($roledoms) eq 'ARRAY') {
3714: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3715: next;
3716: }
3717: }
3718: if (ref($roles) eq 'ARRAY') {
3719: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3720: if ($role =~ /^cr\//) {
3721: if (!grep(/^cr$/,@{$roles})) {
3722: next;
3723: }
1.1104 raeburn 3724: } elsif ($role =~ /^gr\//) {
3725: if (!grep(/^gr$/,@{$roles})) {
3726: next;
3727: }
1.922 raeburn 3728: } else {
3729: next;
3730: }
1.832 raeburn 3731: }
1.867 raeburn 3732: }
1.937 raeburn 3733: if ($hidepriv) {
1.999 raeburn 3734: if ($context eq 'userroles') {
3735: if ((&privileged($username,$domain)) &&
3736: (!$nothide{$username.':'.$domain})) {
3737: next;
3738: }
3739: } else {
3740: unless (ref($privileged{$domain}) eq 'HASH') {
3741: my %dompersonnel =
3742: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
3743: $privileged{$domain} = {};
3744: if (keys(%dompersonnel)) {
3745: foreach my $server (keys(%dompersonnel)) {
3746: if (ref($dompersonnel{$server}) eq 'HASH') {
3747: foreach my $user (keys(%{$dompersonnel{$server}})) {
3748: my ($trole,$uname,$udom) = split(/:/,$user);
3749: $privileged{$udom}{$uname} = $trole;
3750: }
3751: }
3752: }
3753: }
3754: }
3755: if (exists($privileged{$domain}{$username})) {
3756: if (!$nothide{$username.':'.$domain}) {
3757: next;
3758: }
3759: }
1.937 raeburn 3760: }
3761: }
1.933 raeburn 3762: if ($withsec) {
3763: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
3764: $tstart.':'.$tend;
3765: } else {
3766: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
3767: }
1.832 raeburn 3768: }
1.373 www 3769: return %returnhash;
1.399 www 3770: }
3771:
3772: # ----------------------------------------------------- Frontpage Announcements
3773: #
3774: #
3775:
3776: sub postannounce {
3777: my ($server,$text)=@_;
1.844 albertel 3778: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 3779: unless ($text=~/\w/) { $text=''; }
3780: return &reply('setannounce:'.&escape($text),$server);
3781: }
3782:
3783: sub getannounce {
1.448 albertel 3784:
3785: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 3786: my $announcement='';
1.800 albertel 3787: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 3788: close($fh);
1.399 www 3789: if ($announcement=~/\w/) {
3790: return
3791: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 3792: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 3793: } else {
3794: return '';
3795: }
3796: } else {
3797: return '';
3798: }
1.351 www 3799: }
1.353 www 3800:
3801: # ---------------------------------------------------------- Course ID routines
3802: # Deal with domain's nohist_courseid.db files
3803: #
3804:
3805: sub courseidput {
1.921 raeburn 3806: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 3807: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 3808: my $outcome;
3809: if ($caller eq 'timeonly') {
3810: my $cids = '';
3811: foreach my $item (keys(%$storehash)) {
3812: $cids.=&escape($item).'&';
3813: }
3814: $cids=~s/\&$//;
3815: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
3816: $coursehome);
3817: } else {
3818: my $items = '';
3819: foreach my $item (keys(%$storehash)) {
3820: $items.= &escape($item).'='.
3821: &freeze_escape($$storehash{$item}).'&';
3822: }
3823: $items=~s/\&$//;
3824: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
3825: $coursehome);
1.918 raeburn 3826: }
3827: if ($outcome eq 'unknown_cmd') {
3828: my $what;
3829: foreach my $cid (keys(%$storehash)) {
3830: $what .= &escape($cid).'=';
1.921 raeburn 3831: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 3832: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 3833: }
3834: $what =~ s/\:$/&/;
3835: }
3836: $what =~ s/\&$//;
3837: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
3838: } else {
3839: return $outcome;
3840: }
1.353 www 3841: }
3842:
3843: sub courseiddump {
1.921 raeburn 3844: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 3845: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 3846: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 3847: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 3848: my $as_hash = 1;
3849: my %returnhash;
3850: if (!$domfilter) { $domfilter=''; }
1.845 albertel 3851: my %libserv = &all_library();
3852: foreach my $tryserver (keys(%libserv)) {
3853: if ( ( $hostidflag == 1
3854: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
3855: || (!defined($hostidflag)) ) {
3856:
1.918 raeburn 3857: if (($domfilter eq '') ||
3858: (&host_domain($tryserver) eq $domfilter)) {
3859: my $rep =
3860: &reply('courseiddump:'.&host_domain($tryserver).':'.
3861: $sincefilter.':'.&escape($descfilter).':'.
3862: &escape($instcodefilter).':'.&escape($ownerfilter).
3863: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 3864: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 3865: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 3866: $showhidden.':'.$caller.':'.&escape($cloner).':'.
1.1029 raeburn 3867: &escape($cc_clone).':'.$cloneonly.':'.
3868: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1071 raeburn 3869: &escape($creationcontext).':'.$domcloner,
3870: $tryserver);
1.918 raeburn 3871: my @pairs=split(/\&/,$rep);
3872: foreach my $item (@pairs) {
3873: my ($key,$value)=split(/\=/,$item,2);
3874: $key = &unescape($key);
3875: next if ($key =~ /^error: 2 /);
3876: my $result = &thaw_unescape($value);
3877: if (ref($result) eq 'HASH') {
3878: $returnhash{$key}=$result;
3879: } else {
1.921 raeburn 3880: my @responses = split(/:/,$value);
3881: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3882: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3883: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3884: }
1.1008 raeburn 3885: }
1.353 www 3886: }
3887: }
3888: }
3889: }
3890: return %returnhash;
3891: }
3892:
1.1055 raeburn 3893: sub courselastaccess {
3894: my ($cdom,$cnum,$hostidref) = @_;
3895: my %returnhash;
3896: if ($cdom && $cnum) {
3897: my $chome = &homeserver($cnum,$cdom);
3898: if ($chome ne 'no_host') {
3899: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
3900: &extract_lastaccess(\%returnhash,$rep);
3901: }
3902: } else {
3903: if (!$cdom) { $cdom=''; }
3904: my %libserv = &all_library();
3905: foreach my $tryserver (keys(%libserv)) {
3906: if (ref($hostidref) eq 'ARRAY') {
3907: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
3908: }
3909: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
3910: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
3911: &extract_lastaccess(\%returnhash,$rep);
3912: }
3913: }
3914: }
3915: return %returnhash;
3916: }
3917:
3918: sub extract_lastaccess {
3919: my ($returnhash,$rep) = @_;
3920: if (ref($returnhash) eq 'HASH') {
3921: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
3922: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
3923: $rep eq '') {
3924: my @pairs=split(/\&/,$rep);
3925: foreach my $item (@pairs) {
3926: my ($key,$value)=split(/\=/,$item,2);
3927: $key = &unescape($key);
3928: next if ($key =~ /^error: 2 /);
3929: $returnhash->{$key} = &thaw_unescape($value);
3930: }
3931: }
3932: }
3933: return;
3934: }
3935:
1.658 raeburn 3936: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3937:
3938: sub dcmailput {
1.685 raeburn 3939: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3940: my $status = &Apache::lonnet::critical(
1.740 www 3941: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3942: &escape($message),$server);
1.662 raeburn 3943: return $status;
3944: }
3945:
1.658 raeburn 3946: sub dcmaildump {
3947: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3948: my %returnhash=();
1.846 albertel 3949:
3950: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3951: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3952: &escape($enddate).':';
3953: my @esc_senders=map { &escape($_)} @$senders;
3954: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3955: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3956: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3957: if (($key) && ($value)) {
3958: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3959: }
3960: }
3961: }
3962: return %returnhash;
3963: }
1.662 raeburn 3964: # ---------------------------------------------------------- Domain roles
3965:
3966: sub get_domain_roles {
3967: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 3968: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 3969: $startdate = '.';
3970: }
1.1018 raeburn 3971: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 3972: $enddate = '.';
3973: }
1.922 raeburn 3974: my $rolelist;
3975: if (ref($roles) eq 'ARRAY') {
3976: $rolelist = join(':',@{$roles});
3977: }
1.662 raeburn 3978: my %personnel = ();
1.841 albertel 3979:
3980: my %servers = &get_servers($dom,'library');
3981: foreach my $tryserver (keys(%servers)) {
3982: %{$personnel{$tryserver}}=();
3983: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3984: &escape($startdate).':'.
3985: &escape($enddate).':'.
3986: &escape($rolelist), $tryserver))) {
3987: my ($key,$value) = split(/\=/,$line,2);
3988: if (($key) && ($value)) {
3989: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3990: }
3991: }
1.662 raeburn 3992: }
3993: return %personnel;
3994: }
1.658 raeburn 3995:
1.1057 www 3996: # ----------------------------------------------------------- Interval timing
1.149 www 3997:
1.1153 www 3998: {
3999: # Caches needed for speedup of navmaps
4000: # We don't want to cache this for very long at all (5 seconds at most)
4001: #
4002: # The user for whom we cache
4003: my $cachedkey='';
4004: # The cached times for this user
4005: my %cachedtimes=();
4006: # When this was last done
4007: my $cachedtime=();
4008:
4009: sub load_all_first_access {
1.1154 raeburn 4010: my ($uname,$udom)=@_;
1.1156 www 4011: if (($cachedkey eq $uname.':'.$udom) &&
1.1172.2.2 raeburn 4012: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4013: return;
4014: }
4015: $cachedtime=time;
4016: $cachedkey=$uname.':'.$udom;
4017: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4018: }
4019:
1.504 albertel 4020: sub get_first_access {
1.1162 raeburn 4021: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4022: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4023: if ($argsymb) { $symb=$argsymb; }
4024: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4025: if ($argmap) { $map = $argmap; }
1.926 albertel 4026: if ($type eq 'course') {
4027: $res='course';
4028: } elsif ($type eq 'map') {
1.588 albertel 4029: $res=&symbread($map);
4030: } else {
4031: $res=$symb;
4032: }
1.1153 www 4033: &load_all_first_access($uname,$udom);
4034: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4035: }
4036:
4037: sub set_first_access {
1.1162 raeburn 4038: my ($type,$interval)=@_;
1.790 albertel 4039: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4040: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4041: if ($type eq 'course') {
4042: $res='course';
4043: } elsif ($type eq 'map') {
1.588 albertel 4044: $res=&symbread($map);
4045: } else {
4046: $res=$symb;
4047: }
1.1153 www 4048: $cachedkey='';
1.1162 raeburn 4049: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4050: if (!$firstaccess) {
1.1162 raeburn 4051: my $start = time;
4052: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4053: $udom,$uname);
4054: if ($putres eq 'ok') {
4055: &put('timerinterval',{"$courseid\0$res"=>$interval},
4056: $udom,$uname);
4057: &appenv(
4058: {
4059: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4060: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4061: }
4062: );
4063: }
4064: return $putres;
1.505 albertel 4065: }
4066: return 'already_set';
1.504 albertel 4067: }
1.1153 www 4068: }
1.110 www 4069: # --------------------------------------------- Set Expire Date for Spreadsheet
4070:
4071: sub expirespread {
4072: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 4073: my $cid=$env{'request.course.id'};
1.110 www 4074: if ($cid) {
4075: my $now=time;
4076: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 4077: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
4078: $env{'course.'.$cid.'.num'}.
1.110 www 4079: ':nohist_expirationdates:'.
4080: &escape($key).'='.$now,
1.620 albertel 4081: $env{'course.'.$cid.'.home'})
1.110 www 4082: }
4083: return 'ok';
1.14 www 4084: }
4085:
1.109 www 4086: # ----------------------------------------------------- Devalidate Spreadsheets
4087:
4088: sub devalidate {
1.325 www 4089: my ($symb,$uname,$udom)=@_;
1.620 albertel 4090: my $cid=$env{'request.course.id'};
1.109 www 4091: if ($cid) {
1.391 matthew 4092: # delete the stored spreadsheets for
4093: # - the student level sheet of this user in course's homespace
4094: # - the assessment level sheet for this resource
4095: # for this user in user's homespace
1.553 albertel 4096: # - current conditional state info
1.325 www 4097: my $key=$uname.':'.$udom.':';
1.109 www 4098: my $status=
1.299 matthew 4099: &del('nohist_calculatedsheets',
1.391 matthew 4100: [$key.'studentcalc:'],
1.620 albertel 4101: $env{'course.'.$cid.'.domain'},
4102: $env{'course.'.$cid.'.num'})
1.133 albertel 4103: .' '.
4104: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 4105: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 4106: unless ($status eq 'ok ok') {
4107: &logthis('Could not devalidate spreadsheet '.
1.325 www 4108: $uname.' at '.$udom.' for '.
1.109 www 4109: $symb.': '.$status);
1.133 albertel 4110: }
1.553 albertel 4111: &delenv('user.state.'.$cid);
1.109 www 4112: }
4113: }
4114:
1.265 albertel 4115: sub get_scalar {
4116: my ($string,$end) = @_;
4117: my $value;
4118: if ($$string =~ s/^([^&]*?)($end)/$2/) {
4119: $value = $1;
4120: } elsif ($$string =~ s/^([^&]*?)&//) {
4121: $value = $1;
4122: }
4123: return &unescape($value);
4124: }
4125:
4126: sub array2str {
4127: my (@array) = @_;
4128: my $result=&arrayref2str(\@array);
4129: $result=~s/^__ARRAY_REF__//;
4130: $result=~s/__END_ARRAY_REF__$//;
4131: return $result;
4132: }
4133:
1.204 albertel 4134: sub arrayref2str {
4135: my ($arrayref) = @_;
1.265 albertel 4136: my $result='__ARRAY_REF__';
1.204 albertel 4137: foreach my $elem (@$arrayref) {
1.265 albertel 4138: if(ref($elem) eq 'ARRAY') {
4139: $result.=&arrayref2str($elem).'&';
4140: } elsif(ref($elem) eq 'HASH') {
4141: $result.=&hashref2str($elem).'&';
4142: } elsif(ref($elem)) {
4143: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 4144: } else {
4145: $result.=&escape($elem).'&';
4146: }
4147: }
4148: $result=~s/\&$//;
1.265 albertel 4149: $result .= '__END_ARRAY_REF__';
1.204 albertel 4150: return $result;
4151: }
4152:
1.168 albertel 4153: sub hash2str {
1.204 albertel 4154: my (%hash) = @_;
4155: my $result=&hashref2str(\%hash);
1.265 albertel 4156: $result=~s/^__HASH_REF__//;
4157: $result=~s/__END_HASH_REF__$//;
1.204 albertel 4158: return $result;
4159: }
4160:
4161: sub hashref2str {
4162: my ($hashref)=@_;
1.265 albertel 4163: my $result='__HASH_REF__';
1.800 albertel 4164: foreach my $key (sort(keys(%$hashref))) {
4165: if (ref($key) eq 'ARRAY') {
4166: $result.=&arrayref2str($key).'=';
4167: } elsif (ref($key) eq 'HASH') {
4168: $result.=&hashref2str($key).'=';
4169: } elsif (ref($key)) {
1.265 albertel 4170: $result.='=';
1.800 albertel 4171: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 4172: } else {
1.1132 raeburn 4173: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 4174: }
4175:
1.800 albertel 4176: if(ref($hashref->{$key}) eq 'ARRAY') {
4177: $result.=&arrayref2str($hashref->{$key}).'&';
4178: } elsif(ref($hashref->{$key}) eq 'HASH') {
4179: $result.=&hashref2str($hashref->{$key}).'&';
4180: } elsif(ref($hashref->{$key})) {
1.265 albertel 4181: $result.='&';
1.800 albertel 4182: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 4183: } else {
1.800 albertel 4184: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 4185: }
4186: }
1.168 albertel 4187: $result=~s/\&$//;
1.265 albertel 4188: $result .= '__END_HASH_REF__';
1.168 albertel 4189: return $result;
4190: }
4191:
4192: sub str2hash {
1.265 albertel 4193: my ($string)=@_;
4194: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
4195: return %$hash;
4196: }
4197:
4198: sub str2hashref {
1.168 albertel 4199: my ($string) = @_;
1.265 albertel 4200:
4201: my %hash;
4202:
4203: if($string !~ /^__HASH_REF__/) {
4204: if (! ($string eq '' || !defined($string))) {
4205: $hash{'error'}='Not hash reference';
4206: }
4207: return (\%hash, $string);
4208: }
4209:
4210: $string =~ s/^__HASH_REF__//;
4211:
4212: while($string !~ /^__END_HASH_REF__/) {
4213: #key
4214: my $key='';
4215: if($string =~ /^__HASH_REF__/) {
4216: ($key, $string)=&str2hashref($string);
4217: if(defined($key->{'error'})) {
4218: $hash{'error'}='Bad data';
4219: return (\%hash, $string);
4220: }
4221: } elsif($string =~ /^__ARRAY_REF__/) {
4222: ($key, $string)=&str2arrayref($string);
4223: if($key->[0] eq 'Array reference error') {
4224: $hash{'error'}='Bad data';
4225: return (\%hash, $string);
4226: }
4227: } else {
4228: $string =~ s/^(.*?)=//;
1.267 albertel 4229: $key=&unescape($1);
1.265 albertel 4230: }
4231: $string =~ s/^=//;
4232:
4233: #value
4234: my $value='';
4235: if($string =~ /^__HASH_REF__/) {
4236: ($value, $string)=&str2hashref($string);
4237: if(defined($value->{'error'})) {
4238: $hash{'error'}='Bad data';
4239: return (\%hash, $string);
4240: }
4241: } elsif($string =~ /^__ARRAY_REF__/) {
4242: ($value, $string)=&str2arrayref($string);
4243: if($value->[0] eq 'Array reference error') {
4244: $hash{'error'}='Bad data';
4245: return (\%hash, $string);
4246: }
4247: } else {
4248: $value=&get_scalar(\$string,'__END_HASH_REF__');
4249: }
4250: $string =~ s/^&//;
4251:
4252: $hash{$key}=$value;
1.204 albertel 4253: }
1.265 albertel 4254:
4255: $string =~ s/^__END_HASH_REF__//;
4256:
4257: return (\%hash, $string);
1.204 albertel 4258: }
4259:
4260: sub str2array {
1.265 albertel 4261: my ($string)=@_;
4262: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
4263: return @$array;
4264: }
4265:
4266: sub str2arrayref {
1.204 albertel 4267: my ($string) = @_;
1.265 albertel 4268: my @array;
4269:
4270: if($string !~ /^__ARRAY_REF__/) {
4271: if (! ($string eq '' || !defined($string))) {
4272: $array[0]='Array reference error';
4273: }
4274: return (\@array, $string);
4275: }
4276:
4277: $string =~ s/^__ARRAY_REF__//;
4278:
4279: while($string !~ /^__END_ARRAY_REF__/) {
4280: my $value='';
4281: if($string =~ /^__HASH_REF__/) {
4282: ($value, $string)=&str2hashref($string);
4283: if(defined($value->{'error'})) {
4284: $array[0] ='Array reference error';
4285: return (\@array, $string);
4286: }
4287: } elsif($string =~ /^__ARRAY_REF__/) {
4288: ($value, $string)=&str2arrayref($string);
4289: if($value->[0] eq 'Array reference error') {
4290: $array[0] ='Array reference error';
4291: return (\@array, $string);
4292: }
4293: } else {
4294: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
4295: }
4296: $string =~ s/^&//;
4297:
4298: push(@array, $value);
1.191 harris41 4299: }
1.265 albertel 4300:
4301: $string =~ s/^__END_ARRAY_REF__//;
4302:
4303: return (\@array, $string);
1.168 albertel 4304: }
4305:
1.167 albertel 4306: # -------------------------------------------------------------------Temp Store
4307:
1.168 albertel 4308: sub tmpreset {
4309: my ($symb,$namespace,$domain,$stuname) = @_;
4310: if (!$symb) {
4311: $symb=&symbread();
1.620 albertel 4312: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4313: }
4314: $symb=escape($symb);
4315:
1.620 albertel 4316: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 4317: $namespace=~s/\//\_/g;
4318: $namespace=~s/\W//g;
4319:
1.620 albertel 4320: if (!$domain) { $domain=$env{'user.domain'}; }
4321: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4322: if ($domain eq 'public' && $stuname eq 'public') {
4323: $stuname=$ENV{'REMOTE_ADDR'};
4324: }
1.1117 foxr 4325: my $path=LONCAPA::tempdir();
1.168 albertel 4326: my %hash;
4327: if (tie(%hash,'GDBM_File',
4328: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4329: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 4330: foreach my $key (keys(%hash)) {
1.180 albertel 4331: if ($key=~ /:$symb/) {
1.168 albertel 4332: delete($hash{$key});
4333: }
4334: }
4335: }
4336: }
4337:
1.167 albertel 4338: sub tmpstore {
1.168 albertel 4339: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4340:
4341: if (!$symb) {
4342: $symb=&symbread();
1.620 albertel 4343: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4344: }
4345: $symb=escape($symb);
4346:
4347: if (!$namespace) {
4348: # I don't think we would ever want to store this for a course.
4349: # it seems this will only be used if we don't have a course.
1.620 albertel 4350: #$namespace=$env{'request.course.id'};
1.168 albertel 4351: #if (!$namespace) {
1.620 albertel 4352: $namespace=$env{'request.state'};
1.168 albertel 4353: #}
4354: }
4355: $namespace=~s/\//\_/g;
4356: $namespace=~s/\W//g;
1.620 albertel 4357: if (!$domain) { $domain=$env{'user.domain'}; }
4358: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4359: if ($domain eq 'public' && $stuname eq 'public') {
4360: $stuname=$ENV{'REMOTE_ADDR'};
4361: }
1.168 albertel 4362: my $now=time;
4363: my %hash;
1.1117 foxr 4364: my $path=LONCAPA::tempdir();
1.168 albertel 4365: if (tie(%hash,'GDBM_File',
4366: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4367: &GDBM_WRCREAT(),0640)) {
1.168 albertel 4368: $hash{"version:$symb"}++;
4369: my $version=$hash{"version:$symb"};
4370: my $allkeys='';
4371: foreach my $key (keys(%$storehash)) {
4372: $allkeys.=$key.':';
1.591 albertel 4373: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 4374: }
4375: $hash{"$version:$symb:timestamp"}=$now;
4376: $allkeys.='timestamp';
4377: $hash{"$version:keys:$symb"}=$allkeys;
4378: if (untie(%hash)) {
4379: return 'ok';
4380: } else {
4381: return "error:$!";
4382: }
4383: } else {
4384: return "error:$!";
4385: }
4386: }
1.167 albertel 4387:
1.168 albertel 4388: # -----------------------------------------------------------------Temp Restore
1.167 albertel 4389:
1.168 albertel 4390: sub tmprestore {
4391: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 4392:
1.168 albertel 4393: if (!$symb) {
4394: $symb=&symbread();
1.620 albertel 4395: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4396: }
4397: $symb=escape($symb);
4398:
1.620 albertel 4399: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 4400:
1.620 albertel 4401: if (!$domain) { $domain=$env{'user.domain'}; }
4402: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4403: if ($domain eq 'public' && $stuname eq 'public') {
4404: $stuname=$ENV{'REMOTE_ADDR'};
4405: }
1.168 albertel 4406: my %returnhash;
4407: $namespace=~s/\//\_/g;
4408: $namespace=~s/\W//g;
4409: my %hash;
1.1117 foxr 4410: my $path=LONCAPA::tempdir();
1.168 albertel 4411: if (tie(%hash,'GDBM_File',
4412: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4413: &GDBM_READER(),0640)) {
1.168 albertel 4414: my $version=$hash{"version:$symb"};
4415: $returnhash{'version'}=$version;
4416: my $scope;
4417: for ($scope=1;$scope<=$version;$scope++) {
4418: my $vkeys=$hash{"$scope:keys:$symb"};
4419: my @keys=split(/:/,$vkeys);
4420: my $key;
4421: $returnhash{"$scope:keys"}=$vkeys;
4422: foreach $key (@keys) {
1.591 albertel 4423: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
4424: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 4425: }
4426: }
1.168 albertel 4427: if (!(untie(%hash))) {
4428: return "error:$!";
4429: }
4430: } else {
4431: return "error:$!";
4432: }
4433: return %returnhash;
1.167 albertel 4434: }
4435:
1.9 www 4436: # ----------------------------------------------------------------------- Store
4437:
4438: sub store {
1.124 www 4439: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4440: my $home='';
4441:
1.168 albertel 4442: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4443:
1.213 www 4444: $symb=&symbclean($symb);
1.122 albertel 4445: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4446:
1.620 albertel 4447: if (!$domain) { $domain=$env{'user.domain'}; }
4448: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4449:
4450: &devalidate($symb,$stuname,$domain);
1.109 www 4451:
4452: $symb=escape($symb);
1.187 www 4453: if (!$namespace) {
1.620 albertel 4454: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4455: return '';
4456: }
4457: }
1.620 albertel 4458: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4459:
4460: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4461: $$storehash{'host'}=$perlvar{'lonHostID'};
4462:
1.12 www 4463: my $namevalue='';
1.800 albertel 4464: foreach my $key (keys(%$storehash)) {
4465: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4466: }
1.12 www 4467: $namevalue=~s/\&$//;
1.187 www 4468: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 4469: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 4470: }
4471:
1.47 www 4472: # -------------------------------------------------------------- Critical Store
4473:
4474: sub cstore {
1.124 www 4475: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4476: my $home='';
4477:
1.168 albertel 4478: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4479:
1.213 www 4480: $symb=&symbclean($symb);
1.122 albertel 4481: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4482:
1.620 albertel 4483: if (!$domain) { $domain=$env{'user.domain'}; }
4484: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4485:
4486: &devalidate($symb,$stuname,$domain);
1.109 www 4487:
4488: $symb=escape($symb);
1.187 www 4489: if (!$namespace) {
1.620 albertel 4490: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4491: return '';
4492: }
4493: }
1.620 albertel 4494: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4495:
4496: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4497: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 4498:
1.47 www 4499: my $namevalue='';
1.800 albertel 4500: foreach my $key (keys(%$storehash)) {
4501: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4502: }
1.47 www 4503: $namevalue=~s/\&$//;
1.187 www 4504: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4505: return critical
4506: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 4507: }
4508:
1.9 www 4509: # --------------------------------------------------------------------- Restore
4510:
4511: sub restore {
1.124 www 4512: my ($symb,$namespace,$domain,$stuname) = @_;
4513: my $home='';
4514:
1.168 albertel 4515: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4516:
1.122 albertel 4517: if (!$symb) {
4518: unless ($symb=escape(&symbread())) { return ''; }
4519: } else {
1.213 www 4520: $symb=&escape(&symbclean($symb));
1.122 albertel 4521: }
1.188 www 4522: if (!$namespace) {
1.620 albertel 4523: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4524: return '';
4525: }
4526: }
1.620 albertel 4527: if (!$domain) { $domain=$env{'user.domain'}; }
4528: if (!$stuname) { $stuname=$env{'user.name'}; }
4529: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4530: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4531:
1.12 www 4532: my %returnhash=();
1.800 albertel 4533: foreach my $line (split(/\&/,$answer)) {
4534: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4535: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4536: }
1.75 www 4537: my $version;
4538: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4539: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4540: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4541: }
1.75 www 4542: }
1.13 www 4543: return %returnhash;
1.34 www 4544: }
4545:
4546: # ---------------------------------------------------------- Course Description
1.1118 foxr 4547: #
4548: #
1.34 www 4549:
4550: sub coursedescription {
1.731 albertel 4551: my ($courseid,$args)=@_;
1.34 www 4552: $courseid=~s/^\///;
1.49 www 4553: $courseid=~s/\_/\//g;
1.34 www 4554: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4555: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4556: my $normalid=$cdomain.'_'.$cnum;
4557: # need to always cache even if we get errors otherwise we keep
4558: # trying and trying and trying to get the course description.
4559: my %envhash=();
4560: my %returnhash=();
1.731 albertel 4561:
4562: my $expiretime=600;
4563: if ($env{'request.course.id'} eq $normalid) {
4564: $expiretime=120;
4565: }
4566:
4567: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4568: if (!$args->{'freshen_cache'}
4569: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4570: foreach my $key (keys(%env)) {
4571: next if ($key !~ /^\Q$prefix\E(.*)/);
4572: my ($setting) = $1;
4573: $returnhash{$setting} = $env{$key};
4574: }
4575: return %returnhash;
4576: }
4577:
1.1118 foxr 4578: # get the data again
4579:
1.731 albertel 4580: if (!$args->{'one_time'}) {
4581: $envhash{'course.'.$normalid.'.last_cache'}=time;
4582: }
1.811 albertel 4583:
1.34 www 4584: if ($chome ne 'no_host') {
1.302 albertel 4585: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 4586: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 4587: my $username = $env{'user.name'}; # Defult username
4588: if(defined $args->{'user'}) {
4589: $username = $args->{'user'};
4590: }
1.129 albertel 4591: $returnhash{'home'}= $chome;
4592: $returnhash{'domain'} = $cdomain;
4593: $returnhash{'num'} = $cnum;
1.741 raeburn 4594: if (!defined($returnhash{'type'})) {
4595: $returnhash{'type'} = 'Course';
4596: }
1.130 albertel 4597: while (my ($name,$value) = each %returnhash) {
1.53 www 4598: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 4599: }
1.270 www 4600: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 4601: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 4602: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 4603: $envhash{'course.'.$normalid.'.home'}=$chome;
4604: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
4605: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 4606: }
4607: }
1.731 albertel 4608: if (!$args->{'one_time'}) {
1.949 raeburn 4609: &appenv(\%envhash);
1.731 albertel 4610: }
1.302 albertel 4611: return %returnhash;
1.461 www 4612: }
4613:
1.1080 raeburn 4614: sub update_released_required {
4615: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
4616: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
4617: $cid = $env{'request.course.id'};
4618: $cdom = $env{'course.'.$cid.'.domain'};
4619: $cnum = $env{'course.'.$cid.'.num'};
4620: $chome = $env{'course.'.$cid.'.home'};
4621: }
4622: if ($needsrelease) {
4623: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
4624: my $needsupdate;
4625: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
4626: $needsupdate = 1;
4627: } else {
4628: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
4629: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
4630: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
4631: $needsupdate = 1;
4632: }
4633: }
4634: if ($needsupdate) {
4635: my %needshash = (
4636: 'internal.releaserequired' => $needsrelease,
4637: );
4638: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
4639: if ($putresult eq 'ok') {
4640: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
4641: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
4642: if (ref($crsinfo{$cid}) eq 'HASH') {
4643: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
4644: &courseidput($cdom,\%crsinfo,$chome,'notime');
4645: }
4646: }
4647: }
4648: }
4649: return;
4650: }
4651:
1.461 www 4652: # -------------------------------------------------See if a user is privileged
4653:
4654: sub privileged {
4655: my ($username,$domain)=@_;
1.1170 droeschl 4656:
4657: my %rolesdump = &dump("roles", $domain, $username) or return 0;
4658: my $now = time;
4659:
4660: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
4661: my ($trole, $tend, $tstart) = split(/_/, $role);
4662: if (($trole eq 'dc') || ($trole eq 'su')) {
4663: return 1 unless ($tend && $tend < $now)
4664: or ($tstart && $tstart > $now);
4665: }
1.461 www 4666: }
1.1170 droeschl 4667:
1.461 www 4668: return 0;
1.9 www 4669: }
1.1 albertel 4670:
1.103 harris41 4671: # -------------------------------------------------------- Get user privileges
1.11 www 4672:
4673: sub rolesinit {
1.1169 droeschl 4674: my ($domain, $username) = @_;
4675: my %userroles = ('user.login.time' => time);
4676: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
4677:
4678: # firstaccess and timerinterval are related to timed maps/resources.
4679: # also, blocking can be triggered by an activating timer
4680: # it's saved in the user's %env.
4681: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
4682: my %timerinterval = &dump('timerinterval', $domain, $username);
4683: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
4684: %timerintchk, %timerintenv);
4685:
1.1162 raeburn 4686: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 4687: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 4688: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
4689: }
1.1169 droeschl 4690:
1.1162 raeburn 4691: foreach my $key (keys(%timerinterval)) {
4692: my ($cid,$rest) = split(/\0/,$key);
4693: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
4694: }
1.1169 droeschl 4695:
1.11 www 4696: my %allroles=();
1.1162 raeburn 4697: my %allgroups=();
1.11 www 4698:
1.1169 droeschl 4699: for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
4700: my $role = $rolesdump{$area};
4701: $area =~ s/\_\w\w$//;
4702:
4703: my ($trole, $tend, $tstart, $group_privs);
4704:
4705: if ($role =~ /^cr/) {
4706: # Custom role, defined by a user
4707: # e.g., user.role.cr/msu/smith/mynewrole
4708: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
4709: $trole = $1;
4710: ($tend, $tstart) = split('_', $2);
4711: } else {
4712: $trole = $role;
4713: }
4714: } elsif ($role =~ m|^gr/|) {
4715: # Role of member in a group, defined within a course/community
4716: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
4717: ($trole, $tend, $tstart) = split(/_/, $role);
4718: next if $tstart eq '-1';
4719: ($trole, $group_privs) = split(/\//, $trole);
4720: $group_privs = &unescape($group_privs);
4721: } else {
4722: # Just a normal role, defined in roles.tab
4723: ($trole, $tend, $tstart) = split(/_/,$role);
4724: }
4725:
4726: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
4727: $username);
4728: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
4729:
4730: # role expired or not available yet?
4731: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
4732: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
4733:
4734: next if $area eq '' or $trole eq '';
4735:
4736: my $spec = "$trole.$area";
4737: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
4738:
4739: if ($trole =~ /^cr\//) {
4740: # Custom role, defined by a user
4741: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
4742: } elsif ($trole eq 'gr') {
4743: # Role of a member in a group, defined within a course/community
4744: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
4745: next;
4746: } else {
4747: # Normal role, defined in roles.tab
4748: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
4749: }
4750:
4751: my $cid = $tdomain.'_'.$trest;
4752: unless ($firstaccchk{$cid}) {
4753: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
4754: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
4755: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
4756: $coursetimerstarts{$cid}{$item};
4757: }
4758: }
4759: $firstaccchk{$cid} = 1;
4760: }
4761: unless ($timerintchk{$cid}) {
4762: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
4763: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
4764: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
4765: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 4766: }
1.12 www 4767: }
1.1169 droeschl 4768: $timerintchk{$cid} = 1;
1.191 harris41 4769: }
1.11 www 4770: }
1.1169 droeschl 4771:
4772: @userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
4773: \%allroles, \%allgroups);
4774: $env{'user.adv'} = $userroles{'user.adv'};
4775:
1.1162 raeburn 4776: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 4777: }
4778:
1.567 raeburn 4779: sub set_arearole {
4780: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
4781: # log the associated role with the area
4782: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 4783: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 4784: }
4785:
4786: sub custom_roleprivs {
4787: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
4788: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
4789: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 4790: if (&hostname($homsvr) ne '') {
1.567 raeburn 4791: my ($rdummy,$roledef)=
4792: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
4793: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
4794: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
4795: if (defined($syspriv)) {
1.1043 raeburn 4796: if ($trest =~ /^$match_community$/) {
4797: $syspriv =~ s/bre\&S//;
4798: }
1.567 raeburn 4799: $$allroles{'cm./'}.=':'.$syspriv;
4800: $$allroles{$spec.'./'}.=':'.$syspriv;
4801: }
4802: if ($tdomain ne '') {
4803: if (defined($dompriv)) {
4804: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
4805: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
4806: }
4807: if (($trest ne '') && (defined($coursepriv))) {
4808: $$allroles{'cm.'.$area}.=':'.$coursepriv;
4809: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
4810: }
4811: }
4812: }
4813: }
4814: }
4815:
1.678 raeburn 4816: sub group_roleprivs {
4817: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
4818: my $access = 1;
4819: my $now = time;
4820: if (($tend!=0) && ($tend<$now)) { $access = 0; }
4821: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
4822: if ($access) {
1.811 albertel 4823: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 4824: $$allgroups{$course}{$group} .=':'.$group_privs;
4825: }
4826: }
1.567 raeburn 4827:
4828: sub standard_roleprivs {
4829: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
4830: if (defined($pr{$trole.':s'})) {
4831: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
4832: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
4833: }
4834: if ($tdomain ne '') {
4835: if (defined($pr{$trole.':d'})) {
4836: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4837: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4838: }
4839: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
4840: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
4841: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
4842: }
4843: }
4844: }
4845:
4846: sub set_userprivs {
1.1064 raeburn 4847: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 4848: my $author=0;
4849: my $adv=0;
1.678 raeburn 4850: my %grouproles = ();
4851: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 4852: my @groupkeys;
1.1000 raeburn 4853: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 4854: push(@groupkeys,$role);
4855: }
4856: if (ref($groups_roles) eq 'HASH') {
4857: foreach my $key (keys(%{$groups_roles})) {
4858: unless (grep(/^\Q$key\E$/,@groupkeys)) {
4859: push(@groupkeys,$key);
4860: }
4861: }
4862: }
4863: if (@groupkeys > 0) {
4864: foreach my $role (@groupkeys) {
4865: my ($trole,$area,$sec,$extendedarea);
4866: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
4867: $trole = $1;
4868: $area = $2;
4869: $sec = $3;
4870: $extendedarea = $area.$sec;
4871: if (exists($$allgroups{$area})) {
4872: foreach my $group (keys(%{$$allgroups{$area}})) {
4873: my $spec = $trole.'.'.$extendedarea;
4874: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 4875: $$allgroups{$area}{$group};
1.1064 raeburn 4876: }
1.678 raeburn 4877: }
4878: }
4879: }
4880: }
4881: }
1.800 albertel 4882: foreach my $group (keys(%grouproles)) {
4883: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 4884: }
1.800 albertel 4885: foreach my $role (keys(%{$allroles})) {
4886: my %thesepriv;
1.941 raeburn 4887: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 4888: foreach my $item (split(/:/,$$allroles{$role})) {
4889: if ($item ne '') {
4890: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 4891: if ($restrictions eq '') {
4892: $thesepriv{$privilege}='F';
4893: } elsif ($thesepriv{$privilege} ne 'F') {
4894: $thesepriv{$privilege}.=$restrictions;
4895: }
4896: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
4897: }
4898: }
4899: my $thesestr='';
1.1104 raeburn 4900: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 4901: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
4902: }
4903: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 4904: }
4905: return ($author,$adv);
4906: }
4907:
1.994 raeburn 4908: sub role_status {
1.1104 raeburn 4909: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 4910: my @pwhere = ();
4911: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
4912: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
4913: unless (!defined($$role) || $$role eq '') {
4914: $$where=join('.',@pwhere);
4915: $$trolecode=$$role.'.'.$$where;
4916: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
4917: $$tstatus='is';
1.1104 raeburn 4918: if ($$tstart && $$tstart>$update) {
1.994 raeburn 4919: $$tstatus='future';
1.1034 raeburn 4920: if ($$tstart<$now) {
4921: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 4922: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 4923: my (%allroles,%allgroups,$group_privs,
4924: %groups_roles,@rolecodes);
1.1002 raeburn 4925: my %userroles = (
4926: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
4927: );
1.1064 raeburn 4928: @rolecodes = ('cm');
1.1002 raeburn 4929: my $spec=$$role.'.'.$$where;
4930: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
4931: if ($$role =~ /^cr\//) {
4932: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 4933: push(@rolecodes,'cr');
1.1002 raeburn 4934: } elsif ($$role eq 'gr') {
1.1064 raeburn 4935: push(@rolecodes,$$role);
1.1002 raeburn 4936: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4937: $env{'user.name'});
1.1064 raeburn 4938: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 4939: (undef,my $group_privs) = split(/\//,$trole);
4940: $group_privs = &unescape($group_privs);
4941: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 4942: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 4943: &get_groups_roles($tdomain,$trest,
4944: \%course_roles,\@rolecodes,
4945: \%groups_roles);
1.1002 raeburn 4946: } else {
1.1064 raeburn 4947: push(@rolecodes,$$role);
1.1002 raeburn 4948: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
4949: }
1.1064 raeburn 4950: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
4951: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 4952: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4953: }
4954: }
1.1034 raeburn 4955: $$tstatus = 'is';
1.1002 raeburn 4956: }
1.994 raeburn 4957: }
4958: if ($$tend) {
1.1104 raeburn 4959: if ($$tend<$update) {
1.994 raeburn 4960: $$tstatus='expired';
4961: } elsif ($$tend<$now) {
4962: $$tstatus='will_not';
4963: }
4964: }
4965: }
4966: }
4967: }
4968:
1.1104 raeburn 4969: sub get_groups_roles {
4970: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
4971: return unless((ref($cdom_courseroles) eq 'HASH') &&
4972: (ref($rolecodes) eq 'ARRAY') &&
4973: (ref($groups_roles) eq 'HASH'));
4974: if (keys(%{$cdom_courseroles}) > 0) {
4975: my ($cnum) = ($rest =~ /^($match_courseid)/);
4976: if ($cdom ne '' && $cnum ne '') {
4977: foreach my $key (keys(%{$cdom_courseroles})) {
4978: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
4979: my $crsrole = $1;
4980: my $crssec = $2;
4981: if ($crsrole =~ /^cr/) {
4982: unless (grep(/^cr$/,@{$rolecodes})) {
4983: push(@{$rolecodes},'cr');
4984: }
4985: } else {
4986: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
4987: push(@{$rolecodes},$crsrole);
4988: }
4989: }
4990: my $rolekey = "$crsrole./$cdom/$cnum";
4991: if ($crssec ne '') {
4992: $rolekey .= "/$crssec";
4993: }
4994: $rolekey .= './';
4995: $groups_roles->{$rolekey} = $rolecodes;
4996: }
4997: }
4998: }
4999: }
5000: return;
5001: }
5002:
5003: sub delete_env_groupprivs {
5004: my ($where,$courseroles,$possroles) = @_;
5005: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
5006: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
5007: unless (ref($courseroles->{$udom}) eq 'HASH') {
5008: %{$courseroles->{$udom}} =
5009: &get_my_roles('','','userroles',['active'],
5010: $possroles,[$udom],1);
5011: }
5012: if (ref($courseroles->{$udom}) eq 'HASH') {
5013: foreach my $item (keys(%{$courseroles->{$udom}})) {
5014: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
5015: my $area = '/'.$cdom.'/'.$cnum;
5016: my $privkey = "user.priv.$crsrole.$area";
5017: if ($crssec ne '') {
5018: $privkey .= '/'.$crssec;
5019: }
5020: $privkey .= ".$area/$group";
5021: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
5022: }
5023: }
5024: return;
5025: }
5026:
1.994 raeburn 5027: sub check_adhoc_privs {
1.1104 raeburn 5028: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 5029: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1172.2.9! raeburn 5030: my $setprivs;
1.994 raeburn 5031: if ($env{$cckey}) {
5032: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 5033: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 5034: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 5035: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1172.2.9! raeburn 5036: $setprivs = 1;
1.994 raeburn 5037: }
5038: } else {
1.1088 raeburn 5039: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1172.2.9! raeburn 5040: $setprivs = 1;
1.994 raeburn 5041: }
1.1172.2.9! raeburn 5042: return $setprivs;
1.994 raeburn 5043: }
5044:
5045: sub set_adhoc_privileges {
5046: # role can be cc or ca
1.1088 raeburn 5047: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 5048: my $area = '/'.$dcdom.'/'.$pickedcourse;
5049: my $spec = $role.'.'.$area;
5050: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
5051: $env{'user.name'});
5052: my %ccrole = ();
5053: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
5054: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
5055: &appenv(\%userroles,[$role,'cm']);
5056: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 5057: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
5058: &appenv( {'request.role' => $spec,
5059: 'request.role.domain' => $dcdom,
5060: 'request.course.sec' => ''
5061: }
5062: );
5063: my $tadv=0;
5064: if (&allowed('adv') eq 'F') { $tadv=1; }
5065: &appenv({'request.role.adv' => $tadv});
5066: }
1.994 raeburn 5067: }
5068:
1.12 www 5069: # --------------------------------------------------------------- get interface
5070:
5071: sub get {
1.131 albertel 5072: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5073: my $items='';
1.800 albertel 5074: foreach my $item (@$storearr) {
5075: $items.=&escape($item).'&';
1.191 harris41 5076: }
1.12 www 5077: $items=~s/\&$//;
1.620 albertel 5078: if (!$udomain) { $udomain=$env{'user.domain'}; }
5079: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 5080: my $uhome=&homeserver($uname,$udomain);
5081:
1.133 albertel 5082: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5083: my @pairs=split(/\&/,$rep);
1.273 albertel 5084: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
5085: return @pairs;
5086: }
1.15 www 5087: my %returnhash=();
1.42 www 5088: my $i=0;
1.800 albertel 5089: foreach my $item (@$storearr) {
5090: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5091: $i++;
1.191 harris41 5092: }
1.15 www 5093: return %returnhash;
1.27 www 5094: }
5095:
5096: # --------------------------------------------------------------- del interface
5097:
5098: sub del {
1.133 albertel 5099: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 5100: my $items='';
1.800 albertel 5101: foreach my $item (@$storearr) {
5102: $items.=&escape($item).'&';
1.191 harris41 5103: }
1.984 neumanie 5104:
1.27 www 5105: $items=~s/\&$//;
1.620 albertel 5106: if (!$udomain) { $udomain=$env{'user.domain'}; }
5107: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5108: my $uhome=&homeserver($uname,$udomain);
5109: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5110: }
5111:
5112: # -------------------------------------------------------------- dump interface
5113:
5114: sub dump {
1.1166 raeburn 5115: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.755 albertel 5116: if (!$udomain) { $udomain=$env{'user.domain'}; }
5117: if (!$uname) { $uname=$env{'user.name'}; }
5118: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 5119:
1.755 albertel 5120: if ($regexp) {
5121: $regexp=&escape($regexp);
5122: } else {
5123: $regexp='.';
5124: }
1.1166 raeburn 5125: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 5126: my @pairs=split(/\&/,$rep);
5127: my %returnhash=();
1.1098 foxr 5128: if (!($rep =~ /^error/ )) {
5129: foreach my $item (@pairs) {
5130: my ($key,$value)=split(/=/,$item,2);
5131: $key = &unescape($key);
5132: next if ($key =~ /^error: 2 /);
5133: $returnhash{$key}=&thaw_unescape($value);
5134: }
1.755 albertel 5135: }
5136: return %returnhash;
1.407 www 5137: }
5138:
1.1098 foxr 5139:
1.717 albertel 5140: # --------------------------------------------------------- dumpstore interface
5141:
5142: sub dumpstore {
5143: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 5144: if (!$udomain) { $udomain=$env{'user.domain'}; }
5145: if (!$uname) { $uname=$env{'user.name'}; }
5146: my $uhome=&homeserver($uname,$udomain);
5147: if ($regexp) {
5148: $regexp=&escape($regexp);
5149: } else {
5150: $regexp='.';
5151: }
5152: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
5153: my @pairs=split(/\&/,$rep);
5154: my %returnhash=();
5155: foreach my $item (@pairs) {
5156: my ($key,$value)=split(/=/,$item,2);
5157: next if ($key =~ /^error: 2 /);
5158: $returnhash{$key}=&thaw_unescape($value);
5159: }
5160: return %returnhash;
1.717 albertel 5161: }
5162:
1.407 www 5163: # -------------------------------------------------------------- keys interface
5164:
5165: sub getkeys {
5166: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 5167: if (!$udomain) { $udomain=$env{'user.domain'}; }
5168: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 5169: my $uhome=&homeserver($uname,$udomain);
5170: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
5171: my @keyarray=();
1.800 albertel 5172: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 5173: next if ($key =~ /^error: 2 /);
1.800 albertel 5174: push(@keyarray,&unescape($key));
1.407 www 5175: }
5176: return @keyarray;
1.318 matthew 5177: }
5178:
1.319 matthew 5179: # --------------------------------------------------------------- currentdump
5180: sub currentdump {
1.328 matthew 5181: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 5182: $courseid = $env{'request.course.id'} if (! defined($courseid));
5183: $sdom = $env{'user.domain'} if (! defined($sdom));
5184: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 5185: my $uhome = &homeserver($sname,$sdom);
5186: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 5187: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 5188: #
1.318 matthew 5189: my %returnhash=();
1.319 matthew 5190: #
5191: if ($rep eq "unknown_cmd") {
5192: # an old lond will not know currentdump
5193: # Do a dump and make it look like a currentdump
1.822 albertel 5194: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 5195: return if ($tmp[0] =~ /^(error:|no_such_host)/);
5196: my %hash = @tmp;
5197: @tmp=();
1.424 matthew 5198: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 5199: } else {
5200: my @pairs=split(/\&/,$rep);
1.800 albertel 5201: foreach my $pair (@pairs) {
5202: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 5203: my ($symb,$param) = split(/:/,$key);
5204: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 5205: &thaw_unescape($value);
1.319 matthew 5206: }
1.191 harris41 5207: }
1.12 www 5208: return %returnhash;
1.424 matthew 5209: }
5210:
5211: sub convert_dump_to_currentdump{
5212: my %hash = %{shift()};
5213: my %returnhash;
5214: # Code ripped from lond, essentially. The only difference
5215: # here is the unescaping done by lonnet::dump(). Conceivably
5216: # we might run in to problems with parameter names =~ /^v\./
5217: while (my ($key,$value) = each(%hash)) {
5218: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 5219: $symb = &unescape($symb);
5220: $param = &unescape($param);
1.424 matthew 5221: next if ($v eq 'version' || $symb eq 'keys');
5222: next if (exists($returnhash{$symb}) &&
5223: exists($returnhash{$symb}->{$param}) &&
5224: $returnhash{$symb}->{'v.'.$param} > $v);
5225: $returnhash{$symb}->{$param}=$value;
5226: $returnhash{$symb}->{'v.'.$param}=$v;
5227: }
5228: #
5229: # Remove all of the keys in the hashes which keep track of
5230: # the version of the parameter.
5231: while (my ($symb,$param_hash) = each(%returnhash)) {
5232: # use a foreach because we are going to delete from the hash.
5233: foreach my $key (keys(%$param_hash)) {
5234: delete($param_hash->{$key}) if ($key =~ /^v\./);
5235: }
5236: }
5237: return \%returnhash;
1.12 www 5238: }
5239:
1.627 albertel 5240: # ------------------------------------------------------ critical inc interface
5241:
5242: sub cinc {
5243: return &inc(@_,'critical');
5244: }
5245:
1.449 matthew 5246: # --------------------------------------------------------------- inc interface
5247:
5248: sub inc {
1.627 albertel 5249: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 5250: if (!$udomain) { $udomain=$env{'user.domain'}; }
5251: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 5252: my $uhome=&homeserver($uname,$udomain);
5253: my $items='';
5254: if (! ref($store)) {
5255: # got a single value, so use that instead
5256: $items = &escape($store).'=&';
5257: } elsif (ref($store) eq 'SCALAR') {
5258: $items = &escape($$store).'=&';
5259: } elsif (ref($store) eq 'ARRAY') {
5260: $items = join('=&',map {&escape($_);} @{$store});
5261: } elsif (ref($store) eq 'HASH') {
5262: while (my($key,$value) = each(%{$store})) {
5263: $items.= &escape($key).'='.&escape($value).'&';
5264: }
5265: }
5266: $items=~s/\&$//;
1.627 albertel 5267: if ($critical) {
5268: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
5269: } else {
5270: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
5271: }
1.449 matthew 5272: }
5273:
1.12 www 5274: # --------------------------------------------------------------- put interface
5275:
5276: sub put {
1.134 albertel 5277: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5278: if (!$udomain) { $udomain=$env{'user.domain'}; }
5279: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5280: my $uhome=&homeserver($uname,$udomain);
1.12 www 5281: my $items='';
1.800 albertel 5282: foreach my $item (keys(%$storehash)) {
5283: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5284: }
1.12 www 5285: $items=~s/\&$//;
1.134 albertel 5286: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 5287: }
5288:
1.631 albertel 5289: # ------------------------------------------------------------ newput interface
5290:
5291: sub newput {
5292: my ($namespace,$storehash,$udomain,$uname)=@_;
5293: if (!$udomain) { $udomain=$env{'user.domain'}; }
5294: if (!$uname) { $uname=$env{'user.name'}; }
5295: my $uhome=&homeserver($uname,$udomain);
5296: my $items='';
5297: foreach my $key (keys(%$storehash)) {
5298: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
5299: }
5300: $items=~s/\&$//;
5301: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
5302: }
5303:
5304: # --------------------------------------------------------- putstore interface
5305:
1.524 raeburn 5306: sub putstore {
1.715 albertel 5307: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 5308: if (!$udomain) { $udomain=$env{'user.domain'}; }
5309: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 5310: my $uhome=&homeserver($uname,$udomain);
5311: my $items='';
1.715 albertel 5312: foreach my $key (keys(%$storehash)) {
5313: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 5314: }
1.715 albertel 5315: $items=~s/\&$//;
1.716 albertel 5316: my $esc_symb=&escape($symb);
5317: my $esc_v=&escape($version);
1.715 albertel 5318: my $reply =
1.716 albertel 5319: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 5320: $uhome);
5321: if ($reply eq 'unknown_cmd') {
1.716 albertel 5322: # gfall back to way things use to be done
1.715 albertel 5323: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
5324: $uname);
1.524 raeburn 5325: }
1.715 albertel 5326: return $reply;
5327: }
5328:
5329: sub old_putstore {
1.716 albertel 5330: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
5331: if (!$udomain) { $udomain=$env{'user.domain'}; }
5332: if (!$uname) { $uname=$env{'user.name'}; }
5333: my $uhome=&homeserver($uname,$udomain);
5334: my %newstorehash;
1.800 albertel 5335: foreach my $item (keys(%$storehash)) {
5336: my $key = $version.':'.&escape($symb).':'.$item;
5337: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 5338: }
5339: my $items='';
5340: my %allitems = ();
1.800 albertel 5341: foreach my $item (keys(%newstorehash)) {
5342: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 5343: my $key = $1.':keys:'.$2;
5344: $allitems{$key} .= $3.':';
5345: }
1.800 albertel 5346: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 5347: }
1.800 albertel 5348: foreach my $item (keys(%allitems)) {
5349: $allitems{$item} =~ s/\:$//;
5350: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 5351: }
5352: $items=~s/\&$//;
5353: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 5354: }
5355:
1.47 www 5356: # ------------------------------------------------------ critical put interface
5357:
5358: sub cput {
1.134 albertel 5359: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5360: if (!$udomain) { $udomain=$env{'user.domain'}; }
5361: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5362: my $uhome=&homeserver($uname,$udomain);
1.47 www 5363: my $items='';
1.800 albertel 5364: foreach my $item (keys(%$storehash)) {
5365: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5366: }
1.47 www 5367: $items=~s/\&$//;
1.134 albertel 5368: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5369: }
5370:
5371: # -------------------------------------------------------------- eget interface
5372:
5373: sub eget {
1.133 albertel 5374: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5375: my $items='';
1.800 albertel 5376: foreach my $item (@$storearr) {
5377: $items.=&escape($item).'&';
1.191 harris41 5378: }
1.12 www 5379: $items=~s/\&$//;
1.620 albertel 5380: if (!$udomain) { $udomain=$env{'user.domain'}; }
5381: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5382: my $uhome=&homeserver($uname,$udomain);
5383: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5384: my @pairs=split(/\&/,$rep);
5385: my %returnhash=();
1.42 www 5386: my $i=0;
1.800 albertel 5387: foreach my $item (@$storearr) {
5388: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5389: $i++;
1.191 harris41 5390: }
1.12 www 5391: return %returnhash;
5392: }
5393:
1.667 albertel 5394: # ------------------------------------------------------------ tmpput interface
5395: sub tmpput {
1.802 raeburn 5396: my ($storehash,$server,$context)=@_;
1.667 albertel 5397: my $items='';
1.800 albertel 5398: foreach my $item (keys(%$storehash)) {
5399: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 5400: }
5401: $items=~s/\&$//;
1.802 raeburn 5402: if (defined($context)) {
5403: $items .= ':'.&escape($context);
5404: }
1.667 albertel 5405: return &reply("tmpput:$items",$server);
5406: }
5407:
5408: # ------------------------------------------------------------ tmpget interface
5409: sub tmpget {
1.688 albertel 5410: my ($token,$server)=@_;
5411: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5412: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 5413: my %returnhash;
5414: foreach my $item (split(/\&/,$rep)) {
5415: my ($key,$value)=split(/=/,$item);
1.951 raeburn 5416: next if ($key =~ /^error: 2 /);
1.667 albertel 5417: $returnhash{&unescape($key)}=&thaw_unescape($value);
5418: }
5419: return %returnhash;
5420: }
5421:
1.1113 raeburn 5422: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 5423: sub tmpdel {
5424: my ($token,$server)=@_;
5425: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5426: return &reply("tmpdel:$token",$server);
5427: }
5428:
1.765 albertel 5429: # -------------------------------------------------- portfolio access checking
5430:
5431: sub portfolio_access {
1.766 albertel 5432: my ($requrl) = @_;
1.765 albertel 5433: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
5434: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 5435: if ($result) {
5436: my %setters;
5437: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5438: my ($startblock,$endblock) =
5439: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
5440: if ($startblock && $endblock) {
5441: return 'B';
5442: }
5443: } else {
5444: my ($startblock,$endblock) =
5445: &Apache::loncommon::blockcheck(\%setters,'port');
5446: if ($startblock && $endblock) {
5447: return 'B';
5448: }
5449: }
5450: }
1.765 albertel 5451: if ($result eq 'ok') {
1.766 albertel 5452: return 'F';
1.765 albertel 5453: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 5454: return 'A';
1.765 albertel 5455: }
1.766 albertel 5456: return '';
1.765 albertel 5457: }
5458:
5459: sub get_portfolio_access {
1.767 albertel 5460: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
5461:
5462: if (!ref($access_hash)) {
5463: my $current_perms = &get_portfile_permissions($udom,$unum);
5464: my %access_controls = &get_access_controls($current_perms,$group,
5465: $file_name);
5466: $access_hash = $access_controls{$file_name};
5467: }
5468:
1.765 albertel 5469: my ($public,$guest,@domains,@users,@courses,@groups);
5470: my $now = time;
5471: if (ref($access_hash) eq 'HASH') {
5472: foreach my $key (keys(%{$access_hash})) {
5473: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5474: if ($start > $now) {
5475: next;
5476: }
5477: if ($end && $end<$now) {
5478: next;
5479: }
5480: if ($scope eq 'public') {
5481: $public = $key;
5482: last;
5483: } elsif ($scope eq 'guest') {
5484: $guest = $key;
5485: } elsif ($scope eq 'domains') {
5486: push(@domains,$key);
5487: } elsif ($scope eq 'users') {
5488: push(@users,$key);
5489: } elsif ($scope eq 'course') {
5490: push(@courses,$key);
5491: } elsif ($scope eq 'group') {
5492: push(@groups,$key);
5493: }
5494: }
5495: if ($public) {
5496: return 'ok';
5497: }
5498: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5499: if ($guest) {
5500: return $guest;
5501: }
5502: } else {
5503: if (@domains > 0) {
5504: foreach my $domkey (@domains) {
5505: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
5506: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
5507: return 'ok';
5508: }
5509: }
5510: }
5511: }
5512: if (@users > 0) {
5513: foreach my $userkey (@users) {
1.865 raeburn 5514: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
5515: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
5516: if (ref($item) eq 'HASH') {
5517: if (($item->{'uname'} eq $env{'user.name'}) &&
5518: ($item->{'udom'} eq $env{'user.domain'})) {
5519: return 'ok';
5520: }
5521: }
5522: }
5523: }
1.765 albertel 5524: }
5525: }
5526: my %roleshash;
5527: my @courses_and_groups = @courses;
5528: push(@courses_and_groups,@groups);
5529: if (@courses_and_groups > 0) {
5530: my (%allgroups,%allroles);
5531: my ($start,$end,$role,$sec,$group);
5532: foreach my $envkey (%env) {
1.1060 raeburn 5533: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5534: my $cid = $2.'_'.$3;
5535: if ($1 eq 'gr') {
5536: $group = $4;
5537: $allgroups{$cid}{$group} = $env{$envkey};
5538: } else {
5539: if ($4 eq '') {
5540: $sec = 'none';
5541: } else {
5542: $sec = $4;
5543: }
5544: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5545: }
1.811 albertel 5546: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5547: my $cid = $2.'_'.$3;
5548: if ($4 eq '') {
5549: $sec = 'none';
5550: } else {
5551: $sec = $4;
5552: }
5553: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5554: }
5555: }
5556: if (keys(%allroles) == 0) {
5557: return;
5558: }
5559: foreach my $key (@courses_and_groups) {
5560: my %content = %{$$access_hash{$key}};
5561: my $cnum = $content{'number'};
5562: my $cdom = $content{'domain'};
5563: my $cid = $cdom.'_'.$cnum;
5564: if (!exists($allroles{$cid})) {
5565: next;
5566: }
5567: foreach my $role_id (keys(%{$content{'roles'}})) {
5568: my @sections = @{$content{'roles'}{$role_id}{'section'}};
5569: my @groups = @{$content{'roles'}{$role_id}{'group'}};
5570: my @status = @{$content{'roles'}{$role_id}{'access'}};
5571: my @roles = @{$content{'roles'}{$role_id}{'role'}};
5572: foreach my $role (keys(%{$allroles{$cid}})) {
5573: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
5574: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
5575: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
5576: if (grep/^all$/,@sections) {
5577: return 'ok';
5578: } else {
5579: if (grep/^$sec$/,@sections) {
5580: return 'ok';
5581: }
5582: }
5583: }
5584: }
5585: if (keys(%{$allgroups{$cid}}) == 0) {
5586: if (grep/^none$/,@groups) {
5587: return 'ok';
5588: }
5589: } else {
5590: if (grep/^all$/,@groups) {
5591: return 'ok';
5592: }
5593: foreach my $group (keys(%{$allgroups{$cid}})) {
5594: if (grep/^$group$/,@groups) {
5595: return 'ok';
5596: }
5597: }
5598: }
5599: }
5600: }
5601: }
5602: }
5603: }
5604: if ($guest) {
5605: return $guest;
5606: }
5607: }
5608: }
5609: return;
5610: }
5611:
5612: sub course_group_datechecker {
5613: my ($dates,$now,$status) = @_;
5614: my ($start,$end) = split(/\./,$dates);
5615: if (!$start && !$end) {
5616: return 'ok';
5617: }
5618: if (grep/^active$/,@{$status}) {
5619: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
5620: return 'ok';
5621: }
5622: }
5623: if (grep/^previous$/,@{$status}) {
5624: if ($end > $now ) {
5625: return 'ok';
5626: }
5627: }
5628: if (grep/^future$/,@{$status}) {
5629: if ($start > $now) {
5630: return 'ok';
5631: }
5632: }
5633: return;
5634: }
5635:
5636: sub parse_portfolio_url {
5637: my ($url) = @_;
5638:
5639: my ($type,$udom,$unum,$group,$file_name);
5640:
1.823 albertel 5641: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 5642: $type = 1;
5643: $udom = $1;
5644: $unum = $2;
5645: $file_name = $3;
1.823 albertel 5646: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 5647: $type = 2;
5648: $udom = $1;
5649: $unum = $2;
5650: $group = $3;
5651: $file_name = $3.'/'.$4;
5652: }
5653: if (wantarray) {
5654: return ($type,$udom,$unum,$file_name,$group);
5655: }
5656: return $type;
5657: }
5658:
5659: sub is_portfolio_url {
5660: my ($url) = @_;
5661: return scalar(&parse_portfolio_url($url));
5662: }
5663:
1.798 raeburn 5664: sub is_portfolio_file {
5665: my ($file) = @_;
1.820 raeburn 5666: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 5667: return 1;
5668: }
5669: return;
5670: }
5671:
1.976 raeburn 5672: sub usertools_access {
1.1084 raeburn 5673: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 5674: my ($access,%tools);
5675: if ($context eq '') {
5676: $context = 'tools';
5677: }
5678: if ($context eq 'requestcourses') {
5679: %tools = (
5680: official => 1,
5681: unofficial => 1,
1.1006 raeburn 5682: community => 1,
1.985 raeburn 5683: );
1.1172.2.9! raeburn 5684: } elsif ($context eq 'requestauthor') {
! 5685: %tools = (
! 5686: requestauthor => 1,
! 5687: );
1.985 raeburn 5688: } else {
5689: %tools = (
5690: aboutme => 1,
5691: blog => 1,
1.1172.2.6 raeburn 5692: webdav => 1,
1.985 raeburn 5693: portfolio => 1,
5694: );
5695: }
1.976 raeburn 5696: return if (!defined($tools{$tool}));
5697:
5698: if ((!defined($udom)) || (!defined($uname))) {
5699: $udom = $env{'user.domain'};
5700: $uname = $env{'user.name'};
5701: }
5702:
1.978 raeburn 5703: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
5704: if ($action ne 'reload') {
1.985 raeburn 5705: if ($context eq 'requestcourses') {
5706: return $env{'environment.canrequest.'.$tool};
1.1172.2.9! raeburn 5707: } elsif ($context eq 'requestauthor') {
! 5708: return $env{'environment.canrequest.author'};
1.985 raeburn 5709: } else {
5710: return $env{'environment.availabletools.'.$tool};
5711: }
5712: }
1.976 raeburn 5713: }
5714:
1.1172.2.9! raeburn 5715: my ($toolstatus,$inststatus,$envkey);
! 5716: if ($context eq 'requestauthor') {
! 5717: $envkey = $context;
! 5718: } else {
! 5719: $envkey = $context.'.'.$tool;
! 5720: }
1.976 raeburn 5721:
1.985 raeburn 5722: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
5723: ($action ne 'reload')) {
1.1172.2.9! raeburn 5724: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 5725: $inststatus = $env{'environment.inststatus'};
5726: } else {
1.1084 raeburn 5727: if (ref($userenvref) eq 'HASH') {
1.1172.2.9! raeburn 5728: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 5729: $inststatus = $userenvref->{'inststatus'};
5730: } else {
1.1172.2.9! raeburn 5731: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
! 5732: $toolstatus = $userenv{$envkey};
1.1084 raeburn 5733: $inststatus = $userenv{'inststatus'};
5734: }
1.976 raeburn 5735: }
5736:
5737: if ($toolstatus ne '') {
5738: if ($toolstatus) {
5739: $access = 1;
5740: } else {
5741: $access = 0;
5742: }
5743: return $access;
5744: }
5745:
1.1084 raeburn 5746: my ($is_adv,%domdef);
5747: if (ref($is_advref) eq 'HASH') {
5748: $is_adv = $is_advref->{'is_adv'};
5749: } else {
5750: $is_adv = &is_advanced_user($udom,$uname);
5751: }
5752: if (ref($domdefref) eq 'HASH') {
5753: %domdef = %{$domdefref};
5754: } else {
5755: %domdef = &get_domain_defaults($udom);
5756: }
1.976 raeburn 5757: if (ref($domdef{$tool}) eq 'HASH') {
5758: if ($is_adv) {
5759: if ($domdef{$tool}{'_LC_adv'} ne '') {
5760: if ($domdef{$tool}{'_LC_adv'}) {
5761: $access = 1;
5762: } else {
5763: $access = 0;
5764: }
5765: return $access;
5766: }
5767: }
5768: if ($inststatus ne '') {
5769: my ($hasaccess,$hasnoaccess);
5770: foreach my $affiliation (split(/:/,$inststatus)) {
5771: if ($domdef{$tool}{$affiliation} ne '') {
5772: if ($domdef{$tool}{$affiliation}) {
5773: $hasaccess = 1;
5774: } else {
5775: $hasnoaccess = 1;
5776: }
5777: }
5778: }
5779: if ($hasaccess || $hasnoaccess) {
5780: if ($hasaccess) {
5781: $access = 1;
5782: } elsif ($hasnoaccess) {
5783: $access = 0;
5784: }
5785: return $access;
5786: }
5787: } else {
5788: if ($domdef{$tool}{'default'} ne '') {
5789: if ($domdef{$tool}{'default'}) {
5790: $access = 1;
5791: } elsif ($domdef{$tool}{'default'} == 0) {
5792: $access = 0;
5793: }
5794: return $access;
5795: }
5796: }
5797: } else {
1.1172.2.6 raeburn 5798: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 5799: $access = 1;
5800: } else {
5801: $access = 0;
5802: }
1.976 raeburn 5803: return $access;
5804: }
5805: }
5806:
1.1050 raeburn 5807: sub is_course_owner {
5808: my ($cdom,$cnum,$udom,$uname) = @_;
5809: if (($udom eq '') || ($uname eq '')) {
5810: $udom = $env{'user.domain'};
5811: $uname = $env{'user.name'};
5812: }
5813: unless (($udom eq '') || ($uname eq '')) {
5814: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
5815: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
5816: return 1;
5817: } else {
5818: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
5819: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
5820: return 1;
5821: }
5822: }
5823: }
5824: }
5825: return;
5826: }
5827:
1.976 raeburn 5828: sub is_advanced_user {
5829: my ($udom,$uname) = @_;
1.1085 raeburn 5830: if ($udom ne '' && $uname ne '') {
5831: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 5832: if (wantarray) {
5833: return ($env{'user.adv'},$env{'user.author'});
5834: } else {
5835: return $env{'user.adv'};
5836: }
1.1085 raeburn 5837: }
5838: }
1.976 raeburn 5839: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
5840: my %allroles;
1.1128 raeburn 5841: my ($is_adv,$is_author);
1.976 raeburn 5842: foreach my $role (keys(%roleshash)) {
5843: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
5844: my $area = '/'.$tdomain.'/'.$trest;
5845: if ($sec ne '') {
5846: $area .= '/'.$sec;
5847: }
5848: if (($area ne '') && ($trole ne '')) {
5849: my $spec=$trole.'.'.$area;
5850: if ($trole =~ /^cr\//) {
5851: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5852: } elsif ($trole ne 'gr') {
5853: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5854: }
1.1128 raeburn 5855: if ($trole eq 'au') {
5856: $is_author = 1;
5857: }
1.976 raeburn 5858: }
5859: }
5860: foreach my $role (keys(%allroles)) {
5861: last if ($is_adv);
5862: foreach my $item (split(/:/,$allroles{$role})) {
5863: if ($item ne '') {
5864: my ($privilege,$restrictions)=split(/&/,$item);
5865: if ($privilege eq 'adv') {
5866: $is_adv = 1;
5867: last;
5868: }
5869: }
5870: }
5871: }
1.1128 raeburn 5872: if (wantarray) {
5873: return ($is_adv,$is_author);
5874: }
1.976 raeburn 5875: return $is_adv;
5876: }
1.798 raeburn 5877:
1.1035 raeburn 5878: sub check_can_request {
1.1036 raeburn 5879: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 5880: my $canreq = 0;
5881: my ($types,$typename) = &Apache::loncommon::course_types();
5882: my @options = ('approval','validate','autolimit');
5883: my $optregex = join('|',@options);
5884: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
5885: foreach my $type (@{$types}) {
5886: if (&usertools_access($env{'user.name'},
5887: $env{'user.domain'},
5888: $type,undef,'requestcourses')) {
5889: $canreq ++;
1.1036 raeburn 5890: if (ref($request_domains) eq 'HASH') {
5891: push(@{$request_domains->{$type}},$env{'user.domain'});
5892: }
1.1035 raeburn 5893: if ($dom eq $env{'user.domain'}) {
5894: $can_request->{$type} = 1;
5895: }
5896: }
5897: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
5898: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
5899: if (@curr > 0) {
1.1036 raeburn 5900: foreach my $item (@curr) {
5901: if (ref($request_domains) eq 'HASH') {
5902: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
5903: if ($otherdom ne '') {
5904: if (ref($request_domains->{$type}) eq 'ARRAY') {
5905: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
5906: push(@{$request_domains->{$type}},$otherdom);
5907: }
5908: } else {
5909: push(@{$request_domains->{$type}},$otherdom);
5910: }
5911: }
5912: }
5913: }
5914: unless($dom eq $env{'user.domain'}) {
5915: $canreq ++;
1.1035 raeburn 5916: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
5917: $can_request->{$type} = 1;
5918: }
5919: }
5920: }
5921: }
5922: }
5923: }
5924: return $canreq;
5925: }
5926:
1.341 www 5927: # ---------------------------------------------- Custom access rule evaluation
5928:
5929: sub customaccess {
5930: my ($priv,$uri)=@_;
1.807 albertel 5931: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 5932: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 5933: $udom = &LONCAPA::clean_domain($udom);
5934: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 5935: my $access=0;
1.800 albertel 5936: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 5937: my ($effect,$realm,$role,$type)=split(/\:/,$right);
5938: if ($type eq 'user') {
5939: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 5940: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 5941: if ($tdom) {
5942: if ($tdom ne $env{'user.domain'}) { next; }
5943: }
1.896 albertel 5944: if ($tuname) {
5945: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 5946: }
5947: $access=($effect eq 'allow');
5948: last;
5949: }
5950: } else {
5951: if ($role) {
5952: if ($role ne $urole) { next; }
5953: }
5954: foreach my $scope (split(/\s*\,\s*/,$realm)) {
5955: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
5956: if ($tdom) {
5957: if ($tdom ne $udom) { next; }
5958: }
5959: if ($tcrs) {
5960: if ($tcrs ne $ucrs) { next; }
5961: }
5962: if ($tsec) {
5963: if ($tsec ne $usec) { next; }
5964: }
5965: $access=($effect eq 'allow');
5966: last;
5967: }
5968: if ($realm eq '' && $role eq '') {
5969: $access=($effect eq 'allow');
5970: }
1.402 bowersj2 5971: }
1.341 www 5972: }
5973: return $access;
5974: }
5975:
1.103 harris41 5976: # ------------------------------------------------- Check for a user privilege
1.12 www 5977:
5978: sub allowed {
1.810 raeburn 5979: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 5980: my $ver_orguri=$uri;
1.439 www 5981: $uri=&deversion($uri);
1.152 www 5982: my $orguri=$uri;
1.52 www 5983: $uri=&declutter($uri);
1.809 raeburn 5984:
1.810 raeburn 5985: if ($priv eq 'evb') {
5986: # Evade communication block restrictions for specified role in a course
5987: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
5988: return $1;
5989: } else {
5990: return;
5991: }
5992: }
5993:
1.620 albertel 5994: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 5995: # Free bre access to adm and meta resources
1.775 albertel 5996: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 5997: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
5998: && ($priv eq 'bre')) {
1.14 www 5999: return 'F';
1.159 www 6000: }
6001:
1.545 banghart 6002: # Free bre access to user's own portfolio contents
1.714 raeburn 6003: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 6004: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 6005: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 6006: my %setters;
6007: my ($startblock,$endblock) =
6008: &Apache::loncommon::blockcheck(\%setters,'port');
6009: if ($startblock && $endblock) {
6010: return 'B';
6011: } else {
6012: return 'F';
6013: }
1.545 banghart 6014: }
6015:
1.762 raeburn 6016: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 6017: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
6018: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
6019: if (exists($env{'request.course.id'})) {
6020: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6021: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6022: if (($domain eq $cdom) && ($name eq $cnum)) {
6023: my $courseprivid=$env{'request.course.id'};
6024: $courseprivid=~s/\_/\//;
6025: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
6026: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
6027: return $1;
1.762 raeburn 6028: } else {
6029: if ($env{'request.course.sec'}) {
6030: $courseprivid.='/'.$env{'request.course.sec'};
6031: }
6032: if ($env{'user.priv.'.$env{'request.role'}.'./'.
6033: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
6034: return $2;
6035: }
1.714 raeburn 6036: }
6037: }
6038: }
6039: }
6040:
1.159 www 6041: # Free bre to public access
6042:
6043: if ($priv eq 'bre') {
1.238 www 6044: my $copyright=&metadata($uri,'copyright');
1.620 albertel 6045: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 6046: return 'F';
6047: }
1.238 www 6048: if ($copyright eq 'priv') {
6049: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6050: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 6051: return '';
6052: }
6053: }
6054: if ($copyright eq 'domain') {
6055: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6056: unless (($env{'user.domain'} eq $1) ||
6057: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 6058: return '';
6059: }
1.262 matthew 6060: }
1.620 albertel 6061: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 6062: # Library role, so allow browsing of resources in this domain.
6063: return 'F';
1.238 www 6064: }
1.341 www 6065: if ($copyright eq 'custom') {
6066: unless (&customaccess($priv,$uri)) { return ''; }
6067: }
1.14 www 6068: }
1.264 matthew 6069: # Domain coordinator is trying to create a course
1.620 albertel 6070: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 6071: # uri is the requested domain in this case.
6072: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 6073: # a role of dc for the domain in question.
1.620 albertel 6074: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 6075: }
1.29 www 6076:
1.52 www 6077: my $thisallowed='';
6078: my $statecond=0;
6079: my $courseprivid='';
6080:
1.1039 raeburn 6081: my $ownaccess;
1.1043 raeburn 6082: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 6083: if (($priv eq 'bro') && ($env{'user.author'})) {
6084: if ($uri eq '') {
6085: $ownaccess = 1;
6086: } else {
6087: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
6088: my $udom = $env{'user.domain'};
6089: my $uname = $env{'user.name'};
6090: if ($uri =~ m{^\Q$udom\E/?$}) {
6091: $ownaccess = 1;
1.1040 raeburn 6092: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 6093: unless ($uri =~ m{\.\./}) {
6094: $ownaccess = 1;
6095: }
6096: } elsif (($udom ne 'public') && ($uname ne 'public')) {
6097: my $now = time;
6098: if ($uri =~ m{^([^/]+)/?$}) {
6099: my $adom = $1;
6100: foreach my $key (keys(%env)) {
1.1042 raeburn 6101: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 6102: my ($start,$end) = split('.',$env{$key});
6103: if (($now >= $start) && (!$end || $end < $now)) {
6104: $ownaccess = 1;
6105: last;
6106: }
6107: }
6108: }
6109: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
6110: my $adom = $1;
6111: my $aname = $2;
1.1042 raeburn 6112: foreach my $role ('ca','aa') {
6113: if ($env{"user.role.$role./$adom/$aname"}) {
6114: my ($start,$end) =
6115: split('.',$env{"user.role.$role./$adom/$aname"});
6116: if (($now >= $start) && (!$end || $end < $now)) {
6117: $ownaccess = 1;
6118: last;
6119: }
1.1039 raeburn 6120: }
6121: }
6122: }
6123: }
6124: }
6125: }
6126: }
6127:
1.52 www 6128: # Course
6129:
1.620 albertel 6130: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6131: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6132: $thisallowed.=$1;
6133: }
1.52 www 6134: }
1.29 www 6135:
1.52 www 6136: # Domain
6137:
1.620 albertel 6138: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 6139: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6140: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6141: $thisallowed.=$1;
6142: }
1.12 www 6143: }
1.52 www 6144:
1.1141 raeburn 6145: # User who is not author or co-author might still be able to edit
6146: # resource of an author in the domain (e.g., if Domain Coordinator).
6147: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
6148: (&allowed('mdc',$env{'request.course.id'}))) {
6149: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
6150: $thisallowed.=$1;
6151: }
6152: }
6153:
1.52 www 6154: # Course: uri itself is a course
1.66 www 6155: my $courseuri=$uri;
6156: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 6157: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 6158:
1.620 albertel 6159: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 6160: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6161: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6162: $thisallowed.=$1;
6163: }
1.12 www 6164: }
1.29 www 6165:
1.665 albertel 6166: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 6167: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 6168: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 6169: $thisallowed='';
1.671 raeburn 6170: my ($match)=&is_on_map($uri);
6171: if ($match) {
6172: if ($env{'user.priv.'.$env{'request.role'}.'./'}
6173: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6174: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6175: if (@blockers > 0) {
6176: $thisallowed = 'B';
6177: } else {
6178: $thisallowed.=$1;
6179: }
1.671 raeburn 6180: }
6181: } else {
1.705 albertel 6182: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 6183: if ($refuri) {
6184: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 6185: $thisallowed='F';
1.671 raeburn 6186: } else {
6187: $refuri=&declutter($refuri);
6188: my ($match) = &is_on_map($refuri);
6189: if ($match) {
1.1162 raeburn 6190: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6191: if (@blockers > 0) {
6192: $thisallowed = 'B';
6193: } else {
6194: $thisallowed='F';
6195: }
1.671 raeburn 6196: }
1.669 raeburn 6197: }
1.671 raeburn 6198: }
6199: }
1.314 www 6200: }
1.492 albertel 6201:
1.766 albertel 6202: if ($priv eq 'bre'
6203: && $thisallowed ne 'F'
6204: && $thisallowed ne '2'
6205: && &is_portfolio_url($uri)) {
6206: $thisallowed = &portfolio_access($uri);
6207: }
6208:
1.52 www 6209: # Full access at system, domain or course-wide level? Exit.
1.29 www 6210: if ($thisallowed=~/F/) {
6211: return 'F';
6212: }
6213:
1.52 www 6214: # If this is generating or modifying users, exit with special codes
1.29 www 6215:
1.643 www 6216: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
6217: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 6218: my ($audom,$auname)=split('/',$uri);
1.643 www 6219: # no author name given, so this just checks on the general right to make a co-author in this domain
6220: unless ($auname) { return $thisallowed; }
6221: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 6222: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
6223: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
6224: ($audom ne $env{'request.role.domain'}))) { return ''; }
6225: }
1.52 www 6226: return $thisallowed;
6227: }
6228: #
1.103 harris41 6229: # Gathered so far: system, domain and course wide privileges
1.52 www 6230: #
6231: # Course: See if uri or referer is an individual resource that is part of
6232: # the course
6233:
1.620 albertel 6234: if ($env{'request.course.id'}) {
1.232 www 6235:
1.620 albertel 6236: $courseprivid=$env{'request.course.id'};
6237: if ($env{'request.course.sec'}) {
6238: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 6239: }
6240: $courseprivid=~s/\_/\//;
6241: my $checkreferer=1;
1.232 www 6242: my ($match,$cond)=&is_on_map($uri);
6243: if ($match) {
6244: $statecond=$cond;
1.620 albertel 6245: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6246: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6247: my $value = $1;
6248: if ($priv eq 'bre') {
6249: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6250: if (@blockers > 0) {
6251: $thisallowed = 'B';
6252: } else {
6253: $thisallowed.=$value;
6254: }
6255: } else {
6256: $thisallowed.=$value;
6257: }
1.52 www 6258: $checkreferer=0;
6259: }
1.29 www 6260: }
1.83 www 6261:
1.148 www 6262: if ($checkreferer) {
1.620 albertel 6263: my $refuri=$env{'httpref.'.$orguri};
1.148 www 6264: unless ($refuri) {
1.800 albertel 6265: foreach my $key (keys(%env)) {
6266: if ($key=~/^httpref\..*\*/) {
6267: my $pattern=$key;
1.156 www 6268: $pattern=~s/^httpref\.\/res\///;
1.148 www 6269: $pattern=~s/\*/\[\^\/\]\+/g;
6270: $pattern=~s/\//\\\//g;
1.152 www 6271: if ($orguri=~/$pattern/) {
1.800 albertel 6272: $refuri=$env{$key};
1.148 www 6273: }
6274: }
1.191 harris41 6275: }
1.148 www 6276: }
1.232 www 6277:
1.148 www 6278: if ($refuri) {
1.152 www 6279: $refuri=&declutter($refuri);
1.232 www 6280: my ($match,$cond)=&is_on_map($refuri);
6281: if ($match) {
6282: my $refstatecond=$cond;
1.620 albertel 6283: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6284: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6285: my $value = $1;
6286: if ($priv eq 'bre') {
6287: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6288: if (@blockers > 0) {
6289: $thisallowed = 'B';
6290: } else {
6291: $thisallowed.=$value;
6292: }
6293: } else {
6294: $thisallowed.=$value;
6295: }
1.53 www 6296: $uri=$refuri;
6297: $statecond=$refstatecond;
1.52 www 6298: }
6299: }
1.148 www 6300: }
1.29 www 6301: }
1.52 www 6302: }
1.29 www 6303:
1.52 www 6304: #
1.103 harris41 6305: # Gathered now: all privileges that could apply, and condition number
1.52 www 6306: #
6307: #
6308: # Full or no access?
6309: #
1.29 www 6310:
1.52 www 6311: if ($thisallowed=~/F/) {
6312: return 'F';
6313: }
1.29 www 6314:
1.52 www 6315: unless ($thisallowed) {
6316: return '';
6317: }
1.29 www 6318:
1.52 www 6319: # Restrictions exist, deal with them
6320: #
6321: # C:according to course preferences
6322: # R:according to resource settings
6323: # L:unless locked
6324: # X:according to user session state
6325: #
6326:
6327: # Possibly locked functionality, check all courses
1.54 www 6328: # Locks might take effect only after 10 minutes cache expiration for other
6329: # courses, and 2 minutes for current course
1.52 www 6330:
6331: my $envkey;
6332: if ($thisallowed=~/L/) {
1.1000 raeburn 6333: foreach $envkey (keys(%env)) {
1.54 www 6334: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
6335: my $courseid=$2;
6336: my $roleid=$1.'.'.$2;
1.92 www 6337: $courseid=~s/^\///;
1.54 www 6338: my $expiretime=600;
1.620 albertel 6339: if ($env{'request.role'} eq $roleid) {
1.54 www 6340: $expiretime=120;
6341: }
6342: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
6343: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 6344: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 6345: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 6346: }
1.620 albertel 6347: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
6348: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
6349: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
6350: &log($env{'user.domain'},$env{'user.name'},
6351: $env{'user.home'},
1.57 www 6352: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 6353: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6354: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6355: return '';
6356: }
6357: }
1.620 albertel 6358: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
6359: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
6360: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
6361: &log($env{'user.domain'},$env{'user.name'},
6362: $env{'user.home'},
1.57 www 6363: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 6364: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6365: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6366: return '';
6367: }
6368: }
6369: }
1.29 www 6370: }
1.52 www 6371: }
6372:
6373: #
6374: # Rest of the restrictions depend on selected course
6375: #
6376:
1.620 albertel 6377: unless ($env{'request.course.id'}) {
1.766 albertel 6378: if ($thisallowed eq 'A') {
6379: return 'A';
1.814 raeburn 6380: } elsif ($thisallowed eq 'B') {
6381: return 'B';
1.766 albertel 6382: } else {
6383: return '1';
6384: }
1.52 www 6385: }
1.29 www 6386:
1.52 www 6387: #
6388: # Now user is definitely in a course
6389: #
1.53 www 6390:
6391:
6392: # Course preferences
6393:
6394: if ($thisallowed=~/C/) {
1.620 albertel 6395: my $rolecode=(split(/\./,$env{'request.role'}))[0];
6396: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
6397: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 6398: =~/\Q$rolecode\E/) {
1.1103 raeburn 6399: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6400: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6401: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
6402: $env{'request.course.id'});
6403: }
1.237 www 6404: return '';
6405: }
6406:
1.620 albertel 6407: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 6408: =~/\Q$unamedom\E/) {
1.1103 raeburn 6409: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6410: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
6411: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
6412: $env{'request.course.id'});
6413: }
1.54 www 6414: return '';
6415: }
1.53 www 6416: }
6417:
6418: # Resource preferences
6419:
6420: if ($thisallowed=~/R/) {
1.620 albertel 6421: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 6422: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 6423: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6424: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6425: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
6426: }
6427: return '';
1.54 www 6428: }
1.53 www 6429: }
1.30 www 6430:
1.246 www 6431: # Restricted by state or randomout?
1.30 www 6432:
1.52 www 6433: if ($thisallowed=~/X/) {
1.620 albertel 6434: if ($env{'acc.randomout'}) {
1.579 albertel 6435: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 6436: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 6437: return '';
6438: }
1.247 www 6439: }
6440: if (&condval($statecond)) {
1.52 www 6441: return '2';
6442: } else {
6443: return '';
6444: }
6445: }
1.30 www 6446:
1.766 albertel 6447: if ($thisallowed eq 'A') {
6448: return 'A';
1.814 raeburn 6449: } elsif ($thisallowed eq 'B') {
6450: return 'B';
1.766 albertel 6451: }
1.52 www 6452: return 'F';
1.232 www 6453: }
1.1162 raeburn 6454:
6455: sub get_comm_blocks {
6456: my ($cdom,$cnum) = @_;
6457: if ($cdom eq '' || $cnum eq '') {
6458: return unless ($env{'request.course.id'});
6459: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6460: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6461: }
6462: my %commblocks;
6463: my $hashid=$cdom.'_'.$cnum;
6464: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
6465: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
6466: %commblocks = %{$blocksref};
6467: } else {
6468: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
6469: my $cachetime = 600;
6470: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
6471: }
6472: return %commblocks;
6473: }
6474:
6475: sub has_comm_blocking {
6476: my ($priv,$symb,$uri,$blocks) = @_;
6477: return unless ($env{'request.course.id'});
6478: return unless ($priv eq 'bre');
6479: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
6480: my %commblocks;
6481: if (ref($blocks) eq 'HASH') {
6482: %commblocks = %{$blocks};
6483: } else {
6484: %commblocks = &get_comm_blocks();
6485: }
6486: return unless (keys(%commblocks) > 0);
6487: if (!$symb) { $symb=&symbread($uri,1); }
6488: my ($map,$resid,undef)=&decode_symb($symb);
6489: my %tocheck = (
6490: maps => $map,
6491: resources => $symb,
6492: );
6493: my @blockers;
6494: my $now = time;
1.1163 raeburn 6495: my $navmap = Apache::lonnavmaps::navmap->new();
1.1162 raeburn 6496: foreach my $block (keys(%commblocks)) {
6497: if ($block =~ /^(\d+)____(\d+)$/) {
6498: my ($start,$end) = ($1,$2);
6499: if ($start <= $now && $end >= $now) {
6500: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6501: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6502: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
6503: if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
6504: unless (grep(/^\Q$block\E$/,@blockers)) {
6505: push(@blockers,$block);
6506: }
6507: }
6508: }
6509: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
6510: if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
6511: unless (grep(/^\Q$block\E$/,@blockers)) {
6512: push(@blockers,$block);
6513: }
6514: }
6515: }
6516: }
6517: }
6518: }
6519: } elsif ($block =~ /^firstaccess____(.+)$/) {
6520: my $item = $1;
1.1163 raeburn 6521: my @to_test;
1.1162 raeburn 6522: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6523: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6524: my $check_interval;
6525: if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
6526: my @interval;
6527: my $type = 'map';
6528: if ($item eq 'course') {
6529: $type = 'course';
6530: @interval=&EXT("resource.0.interval");
6531: } else {
6532: if ($item =~ /___\d+___/) {
6533: $type = 'resource';
6534: @interval=&EXT("resource.0.interval",$item);
1.1163 raeburn 6535: if (ref($navmap)) {
6536: my $res = $navmap->getBySymb($item);
6537: push(@to_test,$res);
6538: }
1.1162 raeburn 6539: } else {
6540: my $mapsymb = &symbread($item,1);
6541: if ($mapsymb) {
6542: if (ref($navmap)) {
6543: my $mapres = $navmap->getBySymb($mapsymb);
1.1163 raeburn 6544: @to_test = $mapres->retrieveResources($mapres,undef,0,1);
6545: foreach my $res (@to_test) {
1.1162 raeburn 6546: my $symb = $res->symb();
6547: next if ($symb eq $mapsymb);
6548: if ($symb ne '') {
6549: @interval=&EXT("resource.0.interval",$symb);
6550: last;
6551: }
6552: }
6553: }
6554: }
6555: }
6556: }
6557: if ($interval[0] =~ /\d+/) {
6558: my $first_access;
6559: if ($type eq 'resource') {
6560: $first_access=&get_first_access($interval[1],$item);
6561: } elsif ($type eq 'map') {
6562: $first_access=&get_first_access($interval[1],undef,$item);
6563: } else {
6564: $first_access=&get_first_access($interval[1]);
6565: }
6566: if ($first_access) {
6567: my $timesup = $first_access+$interval[0];
6568: if ($timesup > $now) {
1.1163 raeburn 6569: foreach my $res (@to_test) {
6570: if ($res->is_problem()) {
6571: if ($res->completable()) {
6572: unless (grep(/^\Q$block\E$/,@blockers)) {
6573: push(@blockers,$block);
6574: }
6575: last;
6576: }
6577: }
1.1162 raeburn 6578: }
6579: }
6580: }
6581: }
6582: }
6583: }
6584: }
6585: }
6586: }
6587: return @blockers;
6588: }
6589:
6590: sub check_docs_block {
6591: my ($docsblock,$tocheck) =@_;
6592: if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) {
6593: return;
6594: }
6595: if (ref($docsblock->{'maps'}) eq 'HASH') {
6596: if ($tocheck->{'maps'}) {
6597: if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
6598: return 1;
6599: }
6600: }
6601: }
6602: if (ref($docsblock->{'resources'}) eq 'HASH') {
6603: if ($tocheck->{'resources'}) {
6604: if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
6605: return 1;
6606: }
6607: }
6608: }
6609: return;
6610: }
6611:
1.1133 foxr 6612: #
6613: # Removes the versino from a URI and
6614: # splits it in to its filename and path to the filename.
6615: # Seems like File::Basename could have done this more clearly.
6616: # Parameters:
6617: # $uri - input URI
6618: # Returns:
6619: # Two element list consisting of
6620: # $pathname - the URI up to and excluding the trailing /
6621: # $filename - The part of the URI following the last /
6622: # NOTE:
6623: # Another realization of this is simply:
6624: # use File::Basename;
6625: # ...
6626: # $uri = shift;
6627: # $filename = basename($uri);
6628: # $path = dirname($uri);
6629: # return ($filename, $path);
6630: #
6631: # The implementation below is probably faster however.
6632: #
1.710 albertel 6633: sub split_uri_for_cond {
6634: my $uri=&deversion(&declutter(shift));
6635: my @uriparts=split(/\//,$uri);
6636: my $filename=pop(@uriparts);
6637: my $pathname=join('/',@uriparts);
6638: return ($pathname,$filename);
6639: }
1.232 www 6640: # --------------------------------------------------- Is a resource on the map?
6641:
6642: sub is_on_map {
1.710 albertel 6643: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 6644: #Trying to find the conditional for the file
1.620 albertel 6645: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 6646: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 6647: if ($match) {
1.289 bowersj2 6648: return (1,$1);
6649: } else {
1.434 www 6650: return (0,0);
1.289 bowersj2 6651: }
1.12 www 6652: }
6653:
1.427 www 6654: # --------------------------------------------------------- Get symb from alias
6655:
6656: sub get_symb_from_alias {
6657: my $symb=shift;
6658: my ($map,$resid,$url)=&decode_symb($symb);
6659: # Already is a symb
6660: if ($url) { return $symb; }
6661: # Must be an alias
6662: my $aliassymb='';
6663: my %bighash;
1.620 albertel 6664: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 6665: &GDBM_READER(),0640)) {
6666: my $rid=$bighash{'mapalias_'.$symb};
6667: if ($rid) {
6668: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 6669: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
6670: $resid,$bighash{'src_'.$rid});
1.427 www 6671: }
6672: untie %bighash;
6673: }
6674: return $aliassymb;
6675: }
6676:
1.12 www 6677: # ----------------------------------------------------------------- Define Role
6678:
6679: sub definerole {
6680: if (allowed('mcr','/')) {
6681: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 6682: foreach my $role (split(':',$sysrole)) {
6683: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 6684: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
6685: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
6686: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 6687: return "refused:s:$crole&$cqual";
6688: }
6689: }
1.191 harris41 6690: }
1.800 albertel 6691: foreach my $role (split(':',$domrole)) {
6692: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 6693: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
6694: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
6695: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 6696: return "refused:d:$crole&$cqual";
6697: }
6698: }
1.191 harris41 6699: }
1.800 albertel 6700: foreach my $role (split(':',$courole)) {
6701: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 6702: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
6703: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
6704: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 6705: return "refused:c:$crole&$cqual";
6706: }
6707: }
1.191 harris41 6708: }
1.620 albertel 6709: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
6710: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 6711: "rolesdef_$rolename=".
6712: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 6713: return reply($command,$env{'user.home'});
1.12 www 6714: } else {
6715: return 'refused';
6716: }
1.105 harris41 6717: }
6718:
6719: # ---------------- Make a metadata query against the network of library servers
6720:
6721: sub metadata_query {
1.244 matthew 6722: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 6723: my %rhash;
1.845 albertel 6724: my %libserv = &all_library();
1.244 matthew 6725: my @server_list = (defined($server_array) ? @$server_array
6726: : keys(%libserv) );
6727: for my $server (@server_list) {
1.118 harris41 6728: unless ($custom or $customshow) {
6729: my $reply=&reply("querysend:".&escape($query),$server);
6730: $rhash{$server}=$reply;
6731: }
6732: else {
6733: my $reply=&reply("querysend:".&escape($query).':'.
6734: &escape($custom).':'.&escape($customshow),
6735: $server);
6736: $rhash{$server}=$reply;
6737: }
1.112 harris41 6738: }
1.118 harris41 6739: return \%rhash;
1.240 www 6740: }
6741:
6742: # ----------------------------------------- Send log queries and wait for reply
6743:
6744: sub log_query {
6745: my ($uname,$udom,$query,%filters)=@_;
6746: my $uhome=&homeserver($uname,$udom);
6747: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 6748: my $uhost=&hostname($uhome);
1.800 albertel 6749: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 6750: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
6751: $uhome);
1.479 albertel 6752: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 6753: return get_query_reply($queryid);
6754: }
6755:
1.818 raeburn 6756: # -------------------------- Update MySQL table for portfolio file
6757:
6758: sub update_portfolio_table {
1.821 raeburn 6759: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 6760: if ($group ne '') {
6761: $file_name =~s /^\Q$group\E//;
6762: }
1.818 raeburn 6763: my $homeserver = &homeserver($uname,$udom);
6764: my $queryid=
1.821 raeburn 6765: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
6766: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 6767: my $reply = &get_query_reply($queryid);
6768: return $reply;
6769: }
6770:
1.899 raeburn 6771: # -------------------------- Update MySQL allusers table
6772:
6773: sub update_allusers_table {
6774: my ($uname,$udom,$names) = @_;
6775: my $homeserver = &homeserver($uname,$udom);
6776: my $queryid=
6777: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
6778: 'lastname='.&escape($names->{'lastname'}).'%%'.
6779: 'firstname='.&escape($names->{'firstname'}).'%%'.
6780: 'middlename='.&escape($names->{'middlename'}).'%%'.
6781: 'generation='.&escape($names->{'generation'}).'%%'.
6782: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
6783: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 6784: return;
1.899 raeburn 6785: }
6786:
1.508 raeburn 6787: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 6788:
6789: sub fetch_enrollment_query {
1.511 raeburn 6790: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 6791: my $homeserver;
1.547 raeburn 6792: my $maxtries = 1;
1.508 raeburn 6793: if ($context eq 'automated') {
6794: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 6795: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 6796: } else {
6797: $homeserver = &homeserver($cnum,$dom);
6798: }
1.838 albertel 6799: my $host=&hostname($homeserver);
1.506 raeburn 6800: my $cmd = '';
1.1000 raeburn 6801: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 6802: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 6803: }
6804: $cmd =~ s/%%$//;
6805: $cmd = &escape($cmd);
6806: my $query = 'fetchenrollment';
1.620 albertel 6807: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 6808: unless ($queryid=~/^\Q$host\E\_/) {
6809: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
6810: return 'error: '.$queryid;
6811: }
1.506 raeburn 6812: my $reply = &get_query_reply($queryid);
1.547 raeburn 6813: my $tries = 1;
6814: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
6815: $reply = &get_query_reply($queryid);
6816: $tries ++;
6817: }
1.526 raeburn 6818: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 6819: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 6820: } else {
1.901 albertel 6821: my @responses = split(/:/,$reply);
1.515 raeburn 6822: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 6823: foreach my $line (@responses) {
6824: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 6825: $$replyref{$key} = $value;
6826: }
6827: } else {
1.1117 foxr 6828: my $pathname = LONCAPA::tempdir();
1.800 albertel 6829: foreach my $line (@responses) {
6830: my ($key,$value) = split(/=/,$line);
1.506 raeburn 6831: $$replyref{$key} = $value;
6832: if ($value > 0) {
1.800 albertel 6833: foreach my $item (@{$$affiliatesref{$key}}) {
6834: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 6835: my $destname = $pathname.'/'.$filename;
6836: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 6837: if ($xml_classlist =~ /^error/) {
6838: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
6839: } else {
1.506 raeburn 6840: if ( open(FILE,">$destname") ) {
6841: print FILE &unescape($xml_classlist);
6842: close(FILE);
1.526 raeburn 6843: } else {
6844: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 6845: }
6846: }
6847: }
6848: }
6849: }
6850: }
6851: return 'ok';
6852: }
6853: return 'error';
6854: }
6855:
1.242 www 6856: sub get_query_reply {
6857: my $queryid=shift;
1.1117 foxr 6858: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 6859: my $reply='';
6860: for (1..100) {
6861: sleep 2;
6862: if (-e $replyfile.'.end') {
1.448 albertel 6863: if (open(my $fh,$replyfile)) {
1.904 albertel 6864: $reply = join('',<$fh>);
6865: close($fh);
1.240 www 6866: } else { return 'error: reply_file_error'; }
1.242 www 6867: return &unescape($reply);
6868: }
1.240 www 6869: }
1.242 www 6870: return 'timeout:'.$queryid;
1.240 www 6871: }
6872:
6873: sub courselog_query {
1.241 www 6874: #
6875: # possible filters:
6876: # url: url or symb
6877: # username
6878: # domain
6879: # action: view, submit, grade
6880: # start: timestamp
6881: # end: timestamp
6882: #
1.240 www 6883: my (%filters)=@_;
1.620 albertel 6884: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 6885: if ($filters{'url'}) {
6886: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
6887: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
6888: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
6889: }
1.620 albertel 6890: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
6891: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 6892: return &log_query($cname,$cdom,'courselog',%filters);
6893: }
6894:
6895: sub userlog_query {
1.858 raeburn 6896: #
6897: # possible filters:
6898: # action: log check role
6899: # start: timestamp
6900: # end: timestamp
6901: #
1.240 www 6902: my ($uname,$udom,%filters)=@_;
6903: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 6904: }
6905:
1.506 raeburn 6906: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
6907:
6908: sub auto_run {
1.508 raeburn 6909: my ($cnum,$cdom) = @_;
1.876 raeburn 6910: my $response = 0;
6911: my $settings;
6912: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
6913: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
6914: $settings = $domconfig{'autoenroll'};
6915: if ($settings->{'run'} eq '1') {
6916: $response = 1;
6917: }
6918: } else {
1.934 raeburn 6919: my $homeserver;
6920: if (&is_course($cdom,$cnum)) {
6921: $homeserver = &homeserver($cnum,$cdom);
6922: } else {
6923: $homeserver = &domain($cdom,'primary');
6924: }
6925: if ($homeserver ne 'no_host') {
6926: $response = &reply('autorun:'.$cdom,$homeserver);
6927: }
1.876 raeburn 6928: }
1.506 raeburn 6929: return $response;
6930: }
1.776 albertel 6931:
1.506 raeburn 6932: sub auto_get_sections {
1.508 raeburn 6933: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 6934: my $homeserver;
6935: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6936: $homeserver = &homeserver($cnum,$cdom);
6937: }
6938: if (!defined($homeserver)) {
6939: if ($cdom =~ /^$match_domain$/) {
6940: $homeserver = &domain($cdom,'primary');
6941: }
6942: }
6943: my @secs;
6944: if (defined($homeserver)) {
6945: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
6946: unless ($response eq 'refused') {
6947: @secs = split(/:/,$response);
6948: }
1.506 raeburn 6949: }
6950: return @secs;
6951: }
1.776 albertel 6952:
1.506 raeburn 6953: sub auto_new_course {
1.1099 raeburn 6954: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 6955: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 6956: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 6957: return $response;
6958: }
1.776 albertel 6959:
1.506 raeburn 6960: sub auto_validate_courseID {
1.508 raeburn 6961: my ($cnum,$cdom,$inst_course_id) = @_;
6962: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 6963: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 6964: return $response;
6965: }
1.776 albertel 6966:
1.1007 raeburn 6967: sub auto_validate_instcode {
1.1020 raeburn 6968: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 6969: my ($homeserver,$response);
6970: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6971: $homeserver = &homeserver($cnum,$cdom);
6972: }
6973: if (!defined($homeserver)) {
6974: if ($cdom =~ /^$match_domain$/) {
6975: $homeserver = &domain($cdom,'primary');
6976: }
6977: }
1.1065 raeburn 6978: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
6979: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 6980: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
6981: return ($outcome,$description);
1.1007 raeburn 6982: }
6983:
1.506 raeburn 6984: sub auto_create_password {
1.873 raeburn 6985: my ($cnum,$cdom,$authparam,$udom) = @_;
6986: my ($homeserver,$response);
1.506 raeburn 6987: my $create_passwd = 0;
6988: my $authchk = '';
1.873 raeburn 6989: if ($udom =~ /^$match_domain$/) {
6990: $homeserver = &domain($udom,'primary');
6991: }
6992: if ($homeserver eq '') {
6993: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6994: $homeserver = &homeserver($cnum,$cdom);
6995: }
6996: }
6997: if ($homeserver eq '') {
6998: $authchk = 'nodomain';
1.506 raeburn 6999: } else {
1.873 raeburn 7000: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
7001: if ($response eq 'refused') {
7002: $authchk = 'refused';
7003: } else {
1.901 albertel 7004: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 7005: }
1.506 raeburn 7006: }
7007: return ($authparam,$create_passwd,$authchk);
7008: }
7009:
1.706 raeburn 7010: sub auto_photo_permission {
7011: my ($cnum,$cdom,$students) = @_;
7012: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 7013: my ($outcome,$perm_reqd,$conditions) =
7014: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 7015: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7016: return (undef,undef);
7017: }
1.706 raeburn 7018: return ($outcome,$perm_reqd,$conditions);
7019: }
7020:
7021: sub auto_checkphotos {
7022: my ($uname,$udom,$pid) = @_;
7023: my $homeserver = &homeserver($uname,$udom);
7024: my ($result,$resulttype);
7025: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 7026: &escape($uname).':'.&escape($pid),
7027: $homeserver));
1.709 albertel 7028: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7029: return (undef,undef);
7030: }
1.706 raeburn 7031: if ($outcome) {
7032: ($result,$resulttype) = split(/:/,$outcome);
7033: }
7034: return ($result,$resulttype);
7035: }
7036:
7037: sub auto_photochoice {
7038: my ($cnum,$cdom) = @_;
7039: my $homeserver = &homeserver($cnum,$cdom);
7040: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 7041: &escape($cdom),
7042: $homeserver)));
1.709 albertel 7043: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7044: return (undef,undef);
7045: }
1.706 raeburn 7046: return ($update,$comment);
7047: }
7048:
7049: sub auto_photoupdate {
7050: my ($affiliatesref,$dom,$cnum,$photo) = @_;
7051: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 7052: my $host=&hostname($homeserver);
1.706 raeburn 7053: my $cmd = '';
7054: my $maxtries = 1;
1.800 albertel 7055: foreach my $affiliate (keys(%{$affiliatesref})) {
7056: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 7057: }
7058: $cmd =~ s/%%$//;
7059: $cmd = &escape($cmd);
7060: my $query = 'institutionalphotos';
7061: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
7062: unless ($queryid=~/^\Q$host\E\_/) {
7063: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
7064: return 'error: '.$queryid;
7065: }
7066: my $reply = &get_query_reply($queryid);
7067: my $tries = 1;
7068: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7069: $reply = &get_query_reply($queryid);
7070: $tries ++;
7071: }
7072: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
7073: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
7074: } else {
7075: my @responses = split(/:/,$reply);
7076: my $outcome = shift(@responses);
7077: foreach my $item (@responses) {
7078: my ($key,$value) = split(/=/,$item);
7079: $$photo{$key} = $value;
7080: }
7081: return $outcome;
7082: }
7083: return 'error';
7084: }
7085:
1.521 raeburn 7086: sub auto_instcode_format {
1.793 albertel 7087: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
7088: $cat_order) = @_;
1.521 raeburn 7089: my $courses = '';
1.772 raeburn 7090: my @homeservers;
1.521 raeburn 7091: if ($caller eq 'global') {
1.841 albertel 7092: my %servers = &get_servers($codedom,'library');
7093: foreach my $tryserver (keys(%servers)) {
7094: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7095: push(@homeservers,$tryserver);
7096: }
1.584 raeburn 7097: }
1.1022 raeburn 7098: } elsif ($caller eq 'requests') {
7099: if ($codedom =~ /^$match_domain$/) {
7100: my $chome = &domain($codedom,'primary');
7101: unless ($chome eq 'no_host') {
7102: push(@homeservers,$chome);
7103: }
7104: }
1.521 raeburn 7105: } else {
1.772 raeburn 7106: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 7107: }
1.793 albertel 7108: foreach my $code (keys(%{$instcodes})) {
7109: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 7110: }
7111: chop($courses);
1.772 raeburn 7112: my $ok_response = 0;
7113: my $response;
7114: while (@homeservers > 0 && $ok_response == 0) {
7115: my $server = shift(@homeservers);
7116: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
7117: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
7118: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 7119: split(/:/,$response);
1.772 raeburn 7120: %{$codes} = (%{$codes},&str2hash($codes_str));
7121: push(@{$codetitles},&str2array($codetitles_str));
7122: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
7123: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
7124: $ok_response = 1;
7125: }
7126: }
7127: if ($ok_response) {
1.521 raeburn 7128: return 'ok';
1.772 raeburn 7129: } else {
7130: return $response;
1.521 raeburn 7131: }
7132: }
7133:
1.792 raeburn 7134: sub auto_instcode_defaults {
7135: my ($domain,$returnhash,$code_order) = @_;
7136: my @homeservers;
1.841 albertel 7137:
7138: my %servers = &get_servers($domain,'library');
7139: foreach my $tryserver (keys(%servers)) {
7140: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7141: push(@homeservers,$tryserver);
7142: }
1.792 raeburn 7143: }
1.841 albertel 7144:
1.792 raeburn 7145: my $response;
1.841 albertel 7146: foreach my $server (@homeservers) {
1.792 raeburn 7147: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 7148: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
7149:
7150: foreach my $pair (split(/\&/,$response)) {
7151: my ($name,$value)=split(/\=/,$pair);
7152: if ($name eq 'code_order') {
7153: @{$code_order} = split(/\&/,&unescape($value));
7154: } else {
7155: $returnhash->{&unescape($name)}=&unescape($value);
7156: }
7157: }
7158: return 'ok';
1.792 raeburn 7159: }
1.841 albertel 7160:
7161: return $response;
1.1003 raeburn 7162: }
7163:
7164: sub auto_possible_instcodes {
1.1007 raeburn 7165: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
7166: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
7167: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
7168: return;
7169: }
1.1003 raeburn 7170: my (@homeservers,$uhome);
7171: if (defined(&domain($domain,'primary'))) {
7172: $uhome=&domain($domain,'primary');
7173: push(@homeservers,&domain($domain,'primary'));
7174: } else {
7175: my %servers = &get_servers($domain,'library');
7176: foreach my $tryserver (keys(%servers)) {
7177: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7178: push(@homeservers,$tryserver);
7179: }
7180: }
7181: }
7182: my $response;
7183: foreach my $server (@homeservers) {
7184: $response=&reply('autopossibleinstcodes:'.$domain,$server);
7185: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 7186: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
7187: split(':',$response);
7188: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
7189: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 7190: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 7191: my ($name,$value)=split('=',$item);
7192: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7193: }
7194: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 7195: my ($name,$value)=split('=',$item);
7196: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7197: }
7198: return 'ok';
7199: }
7200: return $response;
7201: }
1.792 raeburn 7202:
1.1010 raeburn 7203: sub auto_courserequest_checks {
7204: my ($dom) = @_;
1.1020 raeburn 7205: my ($homeserver,%validations);
7206: if ($dom =~ /^$match_domain$/) {
7207: $homeserver = &domain($dom,'primary');
7208: }
7209: unless ($homeserver eq 'no_host') {
7210: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
7211: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7212: my @items = split(/&/,$response);
7213: foreach my $item (@items) {
7214: my ($key,$value) = split('=',$item);
7215: $validations{&unescape($key)} = &thaw_unescape($value);
7216: }
7217: }
7218: }
1.1010 raeburn 7219: return %validations;
7220: }
7221:
1.1020 raeburn 7222: sub auto_courserequest_validation {
7223: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
7224: my ($homeserver,$response);
7225: if ($dom =~ /^$match_domain$/) {
7226: $homeserver = &domain($dom,'primary');
7227: }
7228: unless ($homeserver eq 'no_host') {
1.1021 raeburn 7229:
1.1020 raeburn 7230: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 7231: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 7232: ':'.&escape($instcode).':'.&escape($instseclist),
7233: $homeserver));
7234: }
7235: return $response;
7236: }
7237:
1.777 albertel 7238: sub auto_validate_class_sec {
1.918 raeburn 7239: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 7240: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 7241: my $ownerlist;
7242: if (ref($owners) eq 'ARRAY') {
7243: $ownerlist = join(',',@{$owners});
7244: } else {
7245: $ownerlist = $owners;
7246: }
1.773 raeburn 7247: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 7248: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 7249: return $response;
7250: }
7251:
1.679 raeburn 7252: # ------------------------------------------------------- Course Group routines
7253:
7254: sub get_coursegroups {
1.809 raeburn 7255: my ($cdom,$cnum,$group,$namespace) = @_;
7256: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 7257: }
7258:
1.679 raeburn 7259: sub modify_coursegroup {
7260: my ($cdom,$cnum,$groupsettings) = @_;
7261: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
7262: }
7263:
1.809 raeburn 7264: sub toggle_coursegroup_status {
7265: my ($cdom,$cnum,$group,$action) = @_;
7266: my ($from_namespace,$to_namespace);
7267: if ($action eq 'delete') {
7268: $from_namespace = 'coursegroups';
7269: $to_namespace = 'deleted_groups';
7270: } else {
7271: $from_namespace = 'deleted_groups';
7272: $to_namespace = 'coursegroups';
7273: }
7274: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 7275: if (my $tmp = &error(%curr_group)) {
7276: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
7277: return ('read error',$tmp);
7278: } else {
7279: my %savedsettings = %curr_group;
1.809 raeburn 7280: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 7281: my $deloutcome;
7282: if ($result eq 'ok') {
1.809 raeburn 7283: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 7284: } else {
7285: return ('write error',$result);
7286: }
7287: if ($deloutcome eq 'ok') {
7288: return 'ok';
7289: } else {
7290: return ('delete error',$deloutcome);
7291: }
7292: }
7293: }
7294:
1.679 raeburn 7295: sub modify_group_roles {
1.957 raeburn 7296: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 7297: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
7298: my $role = 'gr/'.&escape($userprivs);
7299: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 7300: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 7301: if ($result eq 'ok') {
7302: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
7303: }
1.679 raeburn 7304: return $result;
7305: }
7306:
7307: sub modify_coursegroup_membership {
7308: my ($cdom,$cnum,$membership) = @_;
7309: my $result = &put('groupmembership',$membership,$cdom,$cnum);
7310: return $result;
7311: }
7312:
1.682 raeburn 7313: sub get_active_groups {
7314: my ($udom,$uname,$cdom,$cnum) = @_;
7315: my $now = time;
7316: my %groups = ();
7317: foreach my $key (keys(%env)) {
1.811 albertel 7318: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 7319: my ($start,$end) = split(/\./,$env{$key});
7320: if (($end!=0) && ($end<$now)) { next; }
7321: if (($start!=0) && ($start>$now)) { next; }
7322: if ($1 eq $cdom && $2 eq $cnum) {
7323: $groups{$3} = $env{$key} ;
7324: }
7325: }
7326: }
7327: return %groups;
7328: }
7329:
1.683 raeburn 7330: sub get_group_membership {
7331: my ($cdom,$cnum,$group) = @_;
7332: return(&dump('groupmembership',$cdom,$cnum,$group));
7333: }
7334:
7335: sub get_users_groups {
7336: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 7337: my @usersgroups;
1.683 raeburn 7338: my $cachetime=1800;
7339:
7340: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 7341: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
7342: if (defined($cached)) {
1.734 albertel 7343: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 7344: } else {
7345: $grouplist = '';
1.816 raeburn 7346: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 7347: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 7348: my $access_end = $env{'course.'.$courseid.
7349: '.default_enrollment_end_date'};
7350: my $now = time;
7351: foreach my $key (keys(%roleshash)) {
7352: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
7353: my $group = $1;
7354: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
7355: my $start = $2;
7356: my $end = $1;
7357: if ($start == -1) { next; } # deleted from group
7358: if (($start!=0) && ($start>$now)) { next; }
7359: if (($end!=0) && ($end<$now)) {
7360: if ($access_end && $access_end < $now) {
7361: if ($access_end - $end < 86400) {
7362: push(@usersgroups,$group);
1.733 raeburn 7363: }
7364: }
1.817 raeburn 7365: next;
1.733 raeburn 7366: }
1.817 raeburn 7367: push(@usersgroups,$group);
1.683 raeburn 7368: }
7369: }
7370: }
1.817 raeburn 7371: @usersgroups = &sort_course_groups($courseid,@usersgroups);
7372: $grouplist = join(':',@usersgroups);
7373: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 7374: }
1.733 raeburn 7375: return @usersgroups;
1.683 raeburn 7376: }
7377:
7378: sub devalidate_getgroups_cache {
7379: my ($udom,$uname,$cdom,$cnum)=@_;
7380: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 7381:
1.683 raeburn 7382: my $hashid="$udom:$uname:$courseid";
7383: &devalidate_cache_new('getgroups',$hashid);
7384: }
7385:
1.12 www 7386: # ------------------------------------------------------------------ Plain Text
7387:
7388: sub plaintext {
1.988 raeburn 7389: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 7390: if ($short =~ m{^cr/}) {
1.758 albertel 7391: return (split('/',$short))[-1];
7392: }
1.742 raeburn 7393: if (!defined($cid)) {
7394: $cid = $env{'request.course.id'};
7395: }
7396: my %rolenames = (
1.1008 raeburn 7397: Course => 'std',
7398: Community => 'alt1',
1.742 raeburn 7399: );
1.1037 raeburn 7400: if ($cid ne '') {
7401: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
7402: unless ($forcedefault) {
7403: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
7404: &Apache::lonlocal::mt_escape(\$roletext);
7405: return &Apache::lonlocal::mt($roletext);
7406: }
7407: }
7408: }
7409: if ((defined($type)) && (defined($rolenames{$type})) &&
7410: (defined($rolenames{$type})) &&
7411: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 7412: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 7413: } elsif ($cid ne '') {
7414: my $crstype = $env{'course.'.$cid.'.type'};
7415: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
7416: (defined($prp{$short}{$rolenames{$crstype}}))) {
7417: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
7418: }
1.742 raeburn 7419: }
1.1037 raeburn 7420: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 7421: }
7422:
7423: # ----------------------------------------------------------------- Assign Role
7424:
7425: sub assignrole {
1.957 raeburn 7426: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
7427: $context)=@_;
1.21 www 7428: my $mrole;
7429: if ($role =~ /^cr\//) {
1.393 www 7430: my $cwosec=$url;
1.811 albertel 7431: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 7432: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 7433: my $refused = 1;
7434: if ($context eq 'requestcourses') {
7435: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
7436: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
7437: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
7438: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7439: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7440: if ($crsenv{'internal.courseowner'} eq
7441: $env{'user.name'}.':'.$env{'user.domain'}) {
7442: $refused = '';
7443: }
7444: }
7445: }
7446: }
7447: }
7448: if ($refused) {
7449: &logthis('Refused custom assignrole: '.
7450: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
7451: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
7452: return 'refused';
7453: }
1.104 www 7454: }
1.21 www 7455: $mrole='cr';
1.678 raeburn 7456: } elsif ($role =~ /^gr\//) {
7457: my $cwogrp=$url;
1.811 albertel 7458: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 7459: unless (&allowed('mdg',$cwogrp)) {
7460: &logthis('Refused group assignrole: '.
7461: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
7462: $env{'user.name'}.' at '.$env{'user.domain'});
7463: return 'refused';
7464: }
7465: $mrole='gr';
1.21 www 7466: } else {
1.82 www 7467: my $cwosec=$url;
1.811 albertel 7468: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 7469: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
7470: my $refused;
7471: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
7472: if (!(&allowed('c'.$role,$url))) {
7473: $refused = 1;
7474: }
7475: } else {
7476: $refused = 1;
7477: }
1.947 raeburn 7478: if ($refused) {
1.1045 raeburn 7479: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7480: if (!$selfenroll && $context eq 'course') {
7481: my %crsenv;
7482: if ($role eq 'cc' || $role eq 'co') {
7483: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7484: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
7485: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
7486: if ($crsenv{'internal.courseowner'} eq
7487: $env{'user.name'}.':'.$env{'user.domain'}) {
7488: $refused = '';
7489: }
7490: }
7491: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
7492: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
7493: if ($crsenv{'internal.courseowner'} eq
7494: $env{'user.name'}.':'.$env{'user.domain'}) {
7495: $refused = '';
7496: }
7497: }
7498: }
7499: }
7500: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 7501: $refused = '';
1.1017 raeburn 7502: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 7503: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 7504: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 7505: my $wrongcc;
7506: if ($cnum =~ /^$match_community$/) {
7507: $wrongcc = 1 if ($role eq 'cc');
7508: } else {
7509: $wrongcc = 1 if ($role eq 'co');
7510: }
7511: unless ($wrongcc) {
7512: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7513: if ($crsenv{'internal.courseowner'} eq
7514: $env{'user.name'}.':'.$env{'user.domain'}) {
7515: $refused = '';
7516: }
1.1017 raeburn 7517: }
7518: }
1.1172.2.9! raeburn 7519: } elsif ($context eq 'requestauthor') {
! 7520: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
! 7521: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
! 7522: if ($env{'environment.requestauthor'} eq 'automatic') {
! 7523: $refused = '';
! 7524: } else {
! 7525: my %domdefaults = &get_domain_defaults($udom);
! 7526: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
! 7527: my $checkbystatus;
! 7528: if ($env{'user.adv'}) {
! 7529: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
! 7530: if ($disposition eq 'automatic') {
! 7531: $refused = '';
! 7532: } elsif ($disposition eq '') {
! 7533: $checkbystatus = 1;
! 7534: }
! 7535: } else {
! 7536: $checkbystatus = 1;
! 7537: }
! 7538: if ($checkbystatus) {
! 7539: if ($env{'environment.inststatus'}) {
! 7540: my @inststatuses = split(/,/,$env{'environment.inststatus'});
! 7541: foreach my $type (@inststatuses) {
! 7542: if (($type ne '') &&
! 7543: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
! 7544: $refused = '';
! 7545: }
! 7546: }
! 7547: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
! 7548: $refused = '';
! 7549: }
! 7550: }
! 7551: }
! 7552: }
! 7553: }
1.1017 raeburn 7554: }
7555: if ($refused) {
1.947 raeburn 7556: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
7557: ' '.$role.' '.$end.' '.$start.' by '.
7558: $env{'user.name'}.' at '.$env{'user.domain'});
7559: return 'refused';
7560: }
1.932 raeburn 7561: }
1.1131 raeburn 7562: } elsif ($role eq 'au') {
7563: if ($url ne '/'.$udom.'/') {
7564: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
7565: ' to assign author role for '.$uname.':'.$udom.
7566: ' in domain: '.$url.' refused (wrong domain).');
7567: return 'refused';
7568: }
1.104 www 7569: }
1.21 www 7570: $mrole=$role;
7571: }
1.620 albertel 7572: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7573: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 7574: if ($end) { $command.='_'.$end; }
1.21 www 7575: if ($start) {
7576: if ($end) {
1.81 www 7577: $command.='_'.$start;
1.21 www 7578: } else {
1.81 www 7579: $command.='_0_'.$start;
1.21 www 7580: }
7581: }
1.739 raeburn 7582: my $origstart = $start;
7583: my $origend = $end;
1.957 raeburn 7584: my $delflag;
1.357 www 7585: # actually delete
7586: if ($deleteflag) {
1.373 www 7587: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 7588: # modify command to delete the role
1.620 albertel 7589: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 7590: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 7591: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 7592: # set start and finish to negative values for userrolelog
7593: $start=-1;
7594: $end=-1;
1.957 raeburn 7595: $delflag = 1;
1.357 www 7596: }
7597: }
7598: # send command
1.349 www 7599: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 7600: # log new user role if status is ok
1.349 www 7601: if ($answer eq 'ok') {
1.663 raeburn 7602: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 7603: # for course roles, perform group memberships changes triggered by role change.
7604: unless ($role =~ /^gr/) {
7605: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 7606: $origstart,$selfenroll,$context);
1.739 raeburn 7607: }
1.1172.2.9! raeburn 7608: if (($role eq 'cc') || ($role eq 'in') ||
! 7609: ($role eq 'ep') || ($role eq 'ad') ||
! 7610: ($role eq 'ta') || ($role eq 'st') ||
! 7611: ($role=~/^cr/) || ($role eq 'gr') ||
! 7612: ($role eq 'co')) {
! 7613: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
! 7614: $selfenroll,$context);
! 7615: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
! 7616: ($role eq 'au') || ($role eq 'dc')) {
! 7617: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
! 7618: $context);
! 7619: } elsif (($role eq 'ca') || ($role eq 'aa')) {
! 7620: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
! 7621: $context);
! 7622: }
1.1053 raeburn 7623: if ($role eq 'cc') {
7624: &autoupdate_coowners($url,$end,$start,$uname,$udom);
7625: }
1.349 www 7626: }
7627: return $answer;
1.169 harris41 7628: }
7629:
1.1053 raeburn 7630: sub autoupdate_coowners {
7631: my ($url,$end,$start,$uname,$udom) = @_;
7632: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
7633: if (($cdom ne '') && ($cnum ne '')) {
7634: my $now = time;
7635: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
7636: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
7637: my %coursehash = &coursedescription($cdom.'_'.$cnum);
7638: my $instcode = $coursehash{'internal.coursecode'};
7639: if ($instcode ne '') {
1.1056 raeburn 7640: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
7641: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 7642: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 7643: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
7644: if ($result eq 'valid') {
7645: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 7646: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
7647: push(@newcoowners,$coowner);
7648: }
7649: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
7650: push(@newcoowners,$uname.':'.$udom);
7651: }
7652: @newcoowners = sort(@newcoowners);
7653: } else {
7654: push(@newcoowners,$uname.':'.$udom);
7655: }
7656: } else {
7657: if ($coursehash{'internal.co-owners'}) {
7658: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
7659: unless ($coowner eq $uname.':'.$udom) {
7660: push(@newcoowners,$coowner);
7661: }
7662: }
7663: unless (@newcoowners > 0) {
7664: $delcoowners = 1;
7665: $coowners = '';
7666: }
7667: }
7668: }
7669: if (@newcoowners || $delcoowners) {
7670: &store_coowners($cdom,$cnum,$coursehash{'home'},
7671: $delcoowners,@newcoowners);
7672: }
7673: }
7674: }
7675: }
7676: }
7677: }
7678: }
7679:
7680: sub store_coowners {
7681: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
7682: my $cid = $cdom.'_'.$cnum;
7683: my ($coowners,$delresult,$putresult);
7684: if (@newcoowners) {
7685: $coowners = join(',',@newcoowners);
7686: my %coownershash = (
7687: 'internal.co-owners' => $coowners,
7688: );
7689: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
7690: if ($putresult eq 'ok') {
7691: if ($env{'course.'.$cid.'.num'} eq $cnum) {
7692: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
7693: }
7694: }
7695: }
7696: if ($delcoowners) {
7697: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
7698: if ($delresult eq 'ok') {
7699: if ($env{'course.'.$cid.'.internal.co-owners'}) {
7700: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
7701: }
7702: }
7703: }
7704: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
7705: my %crsinfo =
7706: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
7707: if (ref($crsinfo{$cid}) eq 'HASH') {
7708: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
7709: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
7710: }
7711: }
7712: }
7713:
1.169 harris41 7714: # -------------------------------------------------- Modify user authentication
1.197 www 7715: # Overrides without validation
7716:
1.169 harris41 7717: sub modifyuserauth {
7718: my ($udom,$uname,$umode,$upass)=@_;
7719: my $uhome=&homeserver($uname,$udom);
1.197 www 7720: unless (&allowed('mau',$udom)) { return 'refused'; }
7721: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 7722: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
7723: ' in domain '.$env{'request.role.domain'});
1.169 harris41 7724: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
7725: &escape($upass),$uhome);
1.620 albertel 7726: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 7727: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
7728: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
7729: &log($udom,,$uname,$uhome,
1.620 albertel 7730: 'Authentication changed by '.$env{'user.domain'}.', '.
7731: $env{'user.name'}.', '.$umode.
1.197 www 7732: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 7733: unless ($reply eq 'ok') {
1.197 www 7734: &logthis('Authentication mode error: '.$reply);
1.169 harris41 7735: return 'error: '.$reply;
7736: }
1.170 harris41 7737: return 'ok';
1.80 www 7738: }
7739:
1.81 www 7740: # --------------------------------------------------------------- Modify a user
1.80 www 7741:
1.81 www 7742: sub modifyuser {
1.206 matthew 7743: my ($udom, $uname, $uid,
7744: $umode, $upass, $first,
7745: $middle, $last, $gene,
1.1058 raeburn 7746: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 7747: $udom= &LONCAPA::clean_domain($udom);
7748: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 7749: my $showcandelete = 'none';
7750: if (ref($candelete) eq 'ARRAY') {
7751: if (@{$candelete} > 0) {
7752: $showcandelete = join(', ',@{$candelete});
7753: }
7754: }
1.81 www 7755: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 7756: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 7757: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 7758: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
7759: ' desiredhome not specified').
1.620 albertel 7760: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
7761: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 7762: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 7763: my $newuser;
7764: if ($uhome eq 'no_host') {
7765: $newuser = 1;
7766: }
1.80 www 7767: # ----------------------------------------------------------------- Create User
1.406 albertel 7768: if (($uhome eq 'no_host') &&
7769: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 7770: my $unhome='';
1.844 albertel 7771: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 7772: $unhome = $desiredhome;
1.620 albertel 7773: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
7774: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 7775: } else { # load balancing routine for determining $unhome
1.81 www 7776: my $loadm=10000000;
1.841 albertel 7777: my %servers = &get_servers($udom,'library');
7778: foreach my $tryserver (keys(%servers)) {
7779: my $answer=reply('load',$tryserver);
7780: if (($answer=~/\d+/) && ($answer<$loadm)) {
7781: $loadm=$answer;
7782: $unhome=$tryserver;
7783: }
1.80 www 7784: }
7785: }
7786: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 7787: return 'error: unable to find a home server for '.$uname.
7788: ' in domain '.$udom;
1.80 www 7789: }
7790: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
7791: &escape($upass),$unhome);
7792: unless ($reply eq 'ok') {
7793: return 'error: '.$reply;
7794: }
1.230 stredwic 7795: $uhome=&homeserver($uname,$udom,'true');
1.80 www 7796: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 7797: return 'error: unable verify users home machine.';
1.80 www 7798: }
1.209 matthew 7799: } # End of creation of new user
1.80 www 7800: # ---------------------------------------------------------------------- Add ID
7801: if ($uid) {
7802: $uid=~tr/A-Z/a-z/;
7803: my %uidhash=&idrget($udom,$uname);
1.196 www 7804: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
7805: && (!$forceid)) {
1.80 www 7806: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 7807: return 'error: user id "'.$uid.'" does not match '.
7808: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 7809: }
7810: } else {
7811: &idput($udom,($uname => $uid));
7812: }
7813: }
7814: # -------------------------------------------------------------- Add names, etc
1.313 matthew 7815: my @tmp=&get('environment',
1.899 raeburn 7816: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 7817: 'permanentemail','inststatus'],
1.134 albertel 7818: $udom,$uname);
1.1075 raeburn 7819: my (%names,%oldnames);
1.313 matthew 7820: if ($tmp[0] =~ m/^error:.*/) {
7821: %names=();
7822: } else {
7823: %names = @tmp;
1.1075 raeburn 7824: %oldnames = %names;
1.313 matthew 7825: }
1.388 www 7826: #
1.1058 raeburn 7827: # If name, email and/or uid are blank (e.g., because an uploaded file
7828: # of users did not contain them), do not overwrite existing values
7829: # unless field is in $candelete array ref.
7830: #
7831:
7832: my @fields = ('firstname','middlename','lastname','generation',
7833: 'permanentemail','id');
7834: my %newvalues;
7835: if (ref($candelete) eq 'ARRAY') {
7836: foreach my $field (@fields) {
7837: if (grep(/^\Q$field\E$/,@{$candelete})) {
7838: if ($field eq 'firstname') {
7839: $names{$field} = $first;
7840: } elsif ($field eq 'middlename') {
7841: $names{$field} = $middle;
7842: } elsif ($field eq 'lastname') {
7843: $names{$field} = $last;
7844: } elsif ($field eq 'generation') {
7845: $names{$field} = $gene;
7846: } elsif ($field eq 'permanentemail') {
7847: $names{$field} = $email;
7848: } elsif ($field eq 'id') {
7849: $names{$field} = $uid;
7850: }
7851: }
7852: }
7853: }
1.388 www 7854: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 7855: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 7856: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 7857: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 7858: if ($email) {
7859: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 7860: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 7861: }
1.899 raeburn 7862: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 7863: if (defined($inststatus)) {
7864: $names{'inststatus'} = '';
7865: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
7866: if (ref($usertypes) eq 'HASH') {
7867: my @okstatuses;
7868: foreach my $item (split(/:/,$inststatus)) {
7869: if (defined($usertypes->{$item})) {
7870: push(@okstatuses,$item);
7871: }
7872: }
7873: if (@okstatuses) {
7874: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
7875: }
7876: }
7877: }
1.1075 raeburn 7878: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 7879: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 7880: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 7881: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
7882: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
7883: } else {
7884: $logmsg .= ' during self creation';
7885: }
1.1075 raeburn 7886: my $changed;
7887: if ($newuser) {
7888: $changed = 1;
7889: } else {
7890: foreach my $field (@fields) {
7891: if ($names{$field} ne $oldnames{$field}) {
7892: $changed = 1;
7893: last;
7894: }
7895: }
7896: }
7897: unless ($changed) {
7898: $logmsg = 'No changes in user information needed for: '.$logmsg;
7899: &logthis($logmsg);
7900: return 'ok';
7901: }
7902: my $reply = &put('environment', \%names, $udom,$uname);
7903: if ($reply ne 'ok') {
7904: return 'error: '.$reply;
7905: }
1.1087 raeburn 7906: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
7907: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
7908: }
1.1075 raeburn 7909: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
7910: &devalidate_cache_new('namescache',$uname.':'.$udom);
7911: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 7912: &logthis($logmsg);
1.134 albertel 7913: return 'ok';
1.80 www 7914: }
7915:
1.81 www 7916: # -------------------------------------------------------------- Modify student
1.80 www 7917:
1.81 www 7918: sub modifystudent {
7919: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 7920: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 7921: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 7922: if (!$cid) {
1.620 albertel 7923: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 7924: return 'not_in_class';
7925: }
1.80 www 7926: }
7927: # --------------------------------------------------------------- Make the user
1.81 www 7928: my $reply=&modifyuser
1.209 matthew 7929: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 7930: $desiredhome,$email,$inststatus);
1.80 www 7931: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 7932: # This will cause &modify_student_enrollment to get the uid from the
7933: # students environment
7934: $uid = undef if (!$forceid);
1.455 albertel 7935: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 7936: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 7937: return $reply;
7938: }
7939:
7940: sub modify_student_enrollment {
1.957 raeburn 7941: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 7942: my ($cdom,$cnum,$chome);
7943: if (!$cid) {
1.620 albertel 7944: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 7945: return 'not_in_class';
7946: }
1.620 albertel 7947: $cdom=$env{'course.'.$cid.'.domain'};
7948: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 7949: } else {
7950: ($cdom,$cnum)=split(/_/,$cid);
7951: }
1.620 albertel 7952: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 7953: if (!$chome) {
1.457 raeburn 7954: $chome=&homeserver($cnum,$cdom);
1.297 matthew 7955: }
1.455 albertel 7956: if (!$chome) { return 'unknown_course'; }
1.297 matthew 7957: # Make sure the user exists
1.81 www 7958: my $uhome=&homeserver($uname,$udom);
7959: if (($uhome eq '') || ($uhome eq 'no_host')) {
7960: return 'error: no such user';
7961: }
1.297 matthew 7962: # Get student data if we were not given enough information
7963: if (!defined($first) || $first eq '' ||
7964: !defined($last) || $last eq '' ||
7965: !defined($uid) || $uid eq '' ||
7966: !defined($middle) || $middle eq '' ||
7967: !defined($gene) || $gene eq '') {
1.294 matthew 7968: # They did not supply us with enough data to enroll the student, so
7969: # we need to pick up more information.
1.297 matthew 7970: my %tmp = &get('environment',
1.294 matthew 7971: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 7972: ,$udom,$uname);
7973:
1.800 albertel 7974: #foreach my $key (keys(%tmp)) {
7975: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 7976: #}
1.294 matthew 7977: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
7978: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
7979: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 7980: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 7981: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
7982: }
1.556 albertel 7983: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 7984: my $user = "$uname:$udom";
7985: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 7986: my $reply=cput('classlist',
1.1148 raeburn 7987: {$user =>
1.515 raeburn 7988: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 7989: $cdom,$cnum);
1.1148 raeburn 7990: if (($reply eq 'ok') || ($reply eq 'delayed')) {
7991: &devalidate_getsection_cache($udom,$uname,$cid);
7992: } else {
1.81 www 7993: return 'error: '.$reply;
7994: }
1.297 matthew 7995: # Add student role to user
1.83 www 7996: my $uurl='/'.$cid;
1.81 www 7997: $uurl=~s/\_/\//g;
7998: if ($usec) {
7999: $uurl.='/'.$usec;
8000: }
1.1148 raeburn 8001: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
8002: $selfenroll,$context);
8003: if ($result ne 'ok') {
8004: if ($old_entry{$user} ne '') {
8005: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
8006: } else {
8007: $reply = &del('classlist',[$user],$cdom,$cnum);
8008: }
8009: }
8010: return $result;
1.21 www 8011: }
8012:
1.556 albertel 8013: sub format_name {
8014: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
8015: my $name;
8016: if ($first ne 'lastname') {
8017: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
8018: } else {
8019: if ($lastname=~/\S/) {
8020: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
8021: $name=~s/\s+,/,/;
8022: } else {
8023: $name.= $firstname.' '.$middlename.' '.$generation;
8024: }
8025: }
8026: $name=~s/^\s+//;
8027: $name=~s/\s+$//;
8028: $name=~s/\s+/ /g;
8029: return $name;
8030: }
8031:
1.84 www 8032: # ------------------------------------------------- Write to course preferences
8033:
8034: sub writecoursepref {
8035: my ($courseid,%prefs)=@_;
8036: $courseid=~s/^\///;
8037: $courseid=~s/\_/\//g;
8038: my ($cdomain,$cnum)=split(/\//,$courseid);
8039: my $chome=homeserver($cnum,$cdomain);
8040: if (($chome eq '') || ($chome eq 'no_host')) {
8041: return 'error: no such course';
8042: }
8043: my $cstring='';
1.800 albertel 8044: foreach my $pref (keys(%prefs)) {
8045: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 8046: }
1.84 www 8047: $cstring=~s/\&$//;
8048: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
8049: }
8050:
8051: # ---------------------------------------------------------- Make/modify course
8052:
8053: sub createcourse {
1.741 raeburn 8054: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 8055: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 8056: $url=&declutter($url);
8057: my $cid='';
1.1028 raeburn 8058: if ($context eq 'requestcourses') {
8059: my $can_create = 0;
8060: my ($ownername,$ownerdom) = split(':',$course_owner);
8061: if ($udom eq $ownerdom) {
8062: if (&usertools_access($ownername,$ownerdom,$category,undef,
8063: $context)) {
8064: $can_create = 1;
8065: }
8066: } else {
8067: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
8068: $category);
8069: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
8070: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
8071: if (@curr > 0) {
8072: my @options = qw(approval validate autolimit);
8073: my $optregex = join('|',@options);
8074: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
8075: $can_create = 1;
8076: }
8077: }
8078: }
8079: }
8080: if ($can_create) {
8081: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
8082: unless (&allowed('ccc',$udom)) {
8083: return 'refused';
8084: }
1.1017 raeburn 8085: }
8086: } else {
8087: return 'refused';
8088: }
1.1028 raeburn 8089: } elsif (!&allowed('ccc',$udom)) {
8090: return 'refused';
1.84 www 8091: }
1.1011 raeburn 8092: # --------------------------------------------------------------- Get Unique ID
8093: my $uname;
8094: if ($cnum =~ /^$match_courseid$/) {
8095: my $chome=&homeserver($cnum,$udom,'true');
8096: if (($chome eq '') || ($chome eq 'no_host')) {
8097: $uname = $cnum;
8098: } else {
1.1038 raeburn 8099: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8100: }
8101: } else {
1.1038 raeburn 8102: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8103: }
8104: return $uname if ($uname =~ /^error/);
8105: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 8106: if (!defined($course_server)) {
8107: if (defined(&domain($udom,'primary'))) {
8108: $course_server = &domain($udom,'primary');
8109: } else {
8110: $course_server = $env{'user.home'};
8111: }
8112: }
8113: my %host_servers =
8114: &Apache::lonnet::get_servers($udom,'library');
8115: unless ($host_servers{$course_server}) {
8116: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 8117: }
1.84 www 8118: # ------------------------------------------------------------- Make the course
8119: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 8120: $course_server);
1.84 www 8121: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 8122: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 8123: if (($uhome eq '') || ($uhome eq 'no_host')) {
8124: return 'error: no such course';
8125: }
1.271 www 8126: # ----------------------------------------------------------------- Course made
1.516 raeburn 8127: # log existence
1.1029 raeburn 8128: my $now = time;
1.918 raeburn 8129: my $newcourse = {
8130: $udom.'_'.$uname => {
1.921 raeburn 8131: description => $description,
8132: inst_code => $inst_code,
8133: owner => $course_owner,
8134: type => $crstype,
1.1029 raeburn 8135: creator => $env{'user.name'}.':'.
8136: $env{'user.domain'},
8137: created => $now,
8138: context => $context,
1.918 raeburn 8139: },
8140: };
1.921 raeburn 8141: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 8142: # set toplevel url
1.271 www 8143: my $topurl=$url;
8144: unless ($nonstandard) {
8145: # ------------------------------------------ For standard courses, make top url
8146: my $mapurl=&clutter($url);
1.278 www 8147: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 8148: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 8149: <map>
8150: <resource id="1" type="start"></resource>
8151: <resource id="2" src="$mapurl"></resource>
8152: <resource id="3" type="finish"></resource>
8153: <link index="1" from="1" to="2"></link>
8154: <link index="2" from="2" to="3"></link>
8155: </map>
8156: ENDINITMAP
8157: $topurl=&declutter(
1.638 albertel 8158: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 8159: );
8160: }
8161: # ----------------------------------------------------------- Write preferences
1.84 www 8162: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 8163: ('description' => $description,
8164: 'url' => $topurl,
8165: 'internal.creator' => $env{'user.name'}.':'.
8166: $env{'user.domain'},
8167: 'internal.created' => $now,
8168: 'internal.creationcontext' => $context)
8169: );
1.84 www 8170: return '/'.$udom.'/'.$uname;
8171: }
8172:
1.1011 raeburn 8173: # ------------------------------------------------------------------- Create ID
8174: sub generate_coursenum {
1.1038 raeburn 8175: my ($udom,$crstype) = @_;
1.1011 raeburn 8176: my $domdesc = &domain($udom);
8177: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 8178: my $first;
8179: if ($crstype eq 'Community') {
8180: $first = '0';
8181: } else {
8182: $first = int(1+rand(9));
8183: }
8184: my $uname=$first.
1.1011 raeburn 8185: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8186: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8187: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8188: # ----------------------------------------------- Make sure that does not exist
8189: my $uhome=&homeserver($uname,$udom,'true');
8190: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 8191: if ($crstype eq 'Community') {
8192: $first = '0';
8193: } else {
8194: $first = int(1+rand(9));
8195: }
8196: $uname=$first.
1.1011 raeburn 8197: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8198: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8199: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8200: $uhome=&homeserver($uname,$udom,'true');
8201: unless (($uhome eq '') || ($uhome eq 'no_host')) {
8202: return 'error: unable to generate unique course-ID';
8203: }
8204: }
8205: return $uname;
8206: }
8207:
1.813 albertel 8208: sub is_course {
1.1167 droeschl 8209: my ($cdom, $cnum) = scalar(@_) == 1 ?
8210: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
8211:
8212: return unless $cdom and $cnum;
8213:
8214: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
8215: '.');
8216:
8217: return unless exists($courses{$cdom.'_'.$cnum});
8218: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 8219: }
8220:
1.1015 raeburn 8221: sub store_userdata {
8222: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 8223: my $result;
1.1016 raeburn 8224: if ($datakey ne '') {
1.1013 raeburn 8225: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 8226: if ($udom eq '' || $uname eq '') {
8227: $udom = $env{'user.domain'};
8228: $uname = $env{'user.name'};
8229: }
8230: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 8231: if (($uhome eq '') || ($uhome eq 'no_host')) {
8232: $result = 'error: no_host';
8233: } else {
8234: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
8235: $storehash->{'host'} = $perlvar{'lonHostID'};
8236:
8237: my $namevalue='';
8238: foreach my $key (keys(%{$storehash})) {
8239: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
8240: }
8241: $namevalue=~s/\&$//;
1.1105 raeburn 8242: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
8243: $namevalue,$uhome);
1.1013 raeburn 8244: }
8245: } else {
8246: $result = 'error: data to store was not a hash reference';
8247: }
8248: } else {
8249: $result= 'error: invalid requestkey';
8250: }
8251: return $result;
8252: }
8253:
1.21 www 8254: # ---------------------------------------------------------- Assign Custom Role
8255:
8256: sub assigncustomrole {
1.957 raeburn 8257: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8258: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 8259: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 8260: }
8261:
8262: # ----------------------------------------------------------------- Revoke Role
8263:
8264: sub revokerole {
1.957 raeburn 8265: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8266: my $now=time;
1.965 raeburn 8267: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 8268: }
8269:
8270: # ---------------------------------------------------------- Revoke Custom Role
8271:
8272: sub revokecustomrole {
1.957 raeburn 8273: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8274: my $now=time;
1.357 www 8275: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 8276: $deleteflag,$selfenroll,$context);
1.17 www 8277: }
8278:
1.533 banghart 8279: # ------------------------------------------------------------ Disk usage
1.535 albertel 8280: sub diskusage {
1.955 raeburn 8281: my ($udom,$uname,$directorypath,$getpropath)=@_;
8282: $directorypath =~ s/\/$//;
8283: my $listing=&reply('du2:'.&escape($directorypath).':'
8284: .&escape($getpropath).':'.&escape($uname).':'
8285: .&escape($udom),homeserver($uname,$udom));
8286: if ($listing eq 'unknown_cmd') {
8287: if ($getpropath) {
8288: $directorypath = &propath($udom,$uname).'/'.$directorypath;
8289: }
8290: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
8291: }
1.514 albertel 8292: return $listing;
1.512 banghart 8293: }
8294:
1.566 banghart 8295: sub is_locked {
1.1096 raeburn 8296: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 8297: my @check;
8298: my $is_locked;
1.1093 raeburn 8299: push (@check,$file_name);
1.613 albertel 8300: my %locked = &get('file_permissions',\@check,
1.620 albertel 8301: $env{'user.domain'},$env{'user.name'});
1.615 albertel 8302: my ($tmp)=keys(%locked);
8303: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 8304:
1.566 banghart 8305: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 8306: $is_locked = 'false';
8307: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 8308: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 8309: $is_locked = 'true';
1.1096 raeburn 8310: if (ref($which) eq 'ARRAY') {
8311: push(@{$which},$entry);
8312: } else {
8313: last;
8314: }
1.745 raeburn 8315: }
8316: }
1.566 banghart 8317: } else {
8318: $is_locked = 'false';
8319: }
1.1093 raeburn 8320: return $is_locked;
1.566 banghart 8321: }
8322:
1.759 albertel 8323: sub declutter_portfile {
8324: my ($file) = @_;
1.833 albertel 8325: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 8326: return $file;
8327: }
8328:
1.559 banghart 8329: # ------------------------------------------------------------- Mark as Read Only
8330:
8331: sub mark_as_readonly {
8332: my ($domain,$user,$files,$what) = @_;
1.613 albertel 8333: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8334: my ($tmp)=keys(%current_permissions);
8335: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 8336: foreach my $file (@{$files}) {
1.759 albertel 8337: $file = &declutter_portfile($file);
1.561 banghart 8338: push(@{$current_permissions{$file}},$what);
1.559 banghart 8339: }
1.613 albertel 8340: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 8341: return;
8342: }
8343:
1.572 banghart 8344: # ------------------------------------------------------------Save Selected Files
8345:
8346: sub save_selected_files {
8347: my ($user, $path, @files) = @_;
8348: my $filename = $user."savedfiles";
1.573 banghart 8349: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 8350: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 8351: foreach my $file (@files) {
1.620 albertel 8352: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 8353: }
8354: foreach my $file (@other_files) {
1.574 banghart 8355: print (OUT $file."\n");
1.572 banghart 8356: }
1.574 banghart 8357: close (OUT);
1.572 banghart 8358: return 'ok';
8359: }
8360:
1.574 banghart 8361: sub clear_selected_files {
8362: my ($user) = @_;
8363: my $filename = $user."savedfiles";
1.1117 foxr 8364: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 8365: print (OUT undef);
8366: close (OUT);
8367: return ("ok");
8368: }
8369:
1.572 banghart 8370: sub files_in_path {
8371: my ($user, $path) = @_;
8372: my $filename = $user."savedfiles";
8373: my %return_files;
1.1117 foxr 8374: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 8375: while (my $line_in = <IN>) {
1.574 banghart 8376: chomp ($line_in);
8377: my @paths_and_file = split (m!/!, $line_in);
8378: my $file_part = pop (@paths_and_file);
8379: my $path_part = join ('/', @paths_and_file);
1.573 banghart 8380: $path_part.='/';
8381: my $path_and_file = $path_part.$file_part;
8382: if ($path_part eq $path) {
8383: $return_files{$file_part}= 'selected';
8384: }
8385: }
1.574 banghart 8386: close (IN);
8387: return (\%return_files);
1.572 banghart 8388: }
8389:
8390: # called in portfolio select mode, to show files selected NOT in current directory
8391: sub files_not_in_path {
8392: my ($user, $path) = @_;
8393: my $filename = $user."savedfiles";
8394: my @return_files;
8395: my $path_part;
1.1117 foxr 8396: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 8397: while (my $line = <IN>) {
1.572 banghart 8398: #ok, I know it's clunky, but I want it to work
1.800 albertel 8399: my @paths_and_file = split(m|/|, $line);
8400: my $file_part = pop(@paths_and_file);
8401: chomp($file_part);
8402: my $path_part = join('/', @paths_and_file);
1.572 banghart 8403: $path_part .= '/';
8404: my $path_and_file = $path_part.$file_part;
8405: if ($path_part ne $path) {
1.800 albertel 8406: push(@return_files, ($path_and_file));
1.572 banghart 8407: }
8408: }
1.800 albertel 8409: close(OUT);
1.574 banghart 8410: return (@return_files);
1.572 banghart 8411: }
8412:
1.745 raeburn 8413: #----------------------------------------------Get portfolio file permissions
1.629 banghart 8414:
1.745 raeburn 8415: sub get_portfile_permissions {
8416: my ($domain,$user) = @_;
1.613 albertel 8417: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8418: my ($tmp)=keys(%current_permissions);
8419: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 8420: return \%current_permissions;
8421: }
8422:
8423: #---------------------------------------------Get portfolio file access controls
8424:
1.749 raeburn 8425: sub get_access_controls {
1.745 raeburn 8426: my ($current_permissions,$group,$file) = @_;
1.769 albertel 8427: my %access;
8428: my $real_file = $file;
8429: $file =~ s/\.meta$//;
1.745 raeburn 8430: if (defined($file)) {
1.749 raeburn 8431: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
8432: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 8433: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 8434: }
8435: }
1.745 raeburn 8436: } else {
1.749 raeburn 8437: foreach my $key (keys(%{$current_permissions})) {
8438: if ($key =~ /\0accesscontrol$/) {
8439: if (defined($group)) {
8440: if ($key !~ m-^\Q$group\E/-) {
8441: next;
8442: }
8443: }
8444: my ($fullpath) = split(/\0/,$key);
8445: if (ref($$current_permissions{$key}) eq 'HASH') {
8446: foreach my $control (keys(%{$$current_permissions{$key}})) {
8447: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
8448: }
8449: }
8450: }
8451: }
8452: }
8453: return %access;
8454: }
8455:
8456: sub modify_access_controls {
8457: my ($file_name,$changes,$domain,$user)=@_;
8458: my ($outcome,$deloutcome);
8459: my %store_permissions;
8460: my %new_values;
8461: my %new_control;
8462: my %translation;
8463: my @deletions = ();
8464: my $now = time;
8465: if (exists($$changes{'activate'})) {
8466: if (ref($$changes{'activate'}) eq 'HASH') {
8467: my @newitems = sort(keys(%{$$changes{'activate'}}));
8468: my $numnew = scalar(@newitems);
8469: for (my $i=0; $i<$numnew; $i++) {
8470: my $newkey = $newitems[$i];
8471: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 8472: if ($newkey =~ /^\d+:/) {
8473: $newkey =~ s/^(\d+)/$newid/;
8474: $translation{$1} = $newid;
8475: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
8476: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
8477: $translation{$1} = $newid;
8478: }
1.749 raeburn 8479: $new_values{$file_name."\0".$newkey} =
8480: $$changes{'activate'}{$newitems[$i]};
8481: $new_control{$newkey} = $now;
8482: }
8483: }
8484: }
8485: my %todelete;
8486: my %changed_items;
8487: foreach my $action ('delete','update') {
8488: if (exists($$changes{$action})) {
8489: if (ref($$changes{$action}) eq 'HASH') {
8490: foreach my $key (keys(%{$$changes{$action}})) {
8491: my ($itemnum) = ($key =~ /^([^:]+):/);
8492: if ($action eq 'delete') {
8493: $todelete{$itemnum} = 1;
8494: } else {
8495: $changed_items{$itemnum} = $key;
8496: }
8497: }
1.745 raeburn 8498: }
8499: }
1.749 raeburn 8500: }
8501: # get lock on access controls for file.
8502: my $lockhash = {
8503: $file_name."\0".'locked_access_records' => $env{'user.name'}.
8504: ':'.$env{'user.domain'},
8505: };
8506: my $tries = 0;
8507: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8508:
8509: while (($gotlock ne 'ok') && $tries <3) {
8510: $tries ++;
8511: sleep 1;
8512: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8513: }
8514: if ($gotlock eq 'ok') {
8515: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
8516: my ($tmp)=keys(%curr_permissions);
8517: if ($tmp=~/^error:/) { undef(%curr_permissions); }
8518: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
8519: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
8520: if (ref($curr_controls) eq 'HASH') {
8521: foreach my $control_item (keys(%{$curr_controls})) {
8522: my ($itemnum) = ($control_item =~ /^([^:]+):/);
8523: if (defined($todelete{$itemnum})) {
8524: push(@deletions,$file_name."\0".$control_item);
8525: } else {
8526: if (defined($changed_items{$itemnum})) {
8527: $new_control{$changed_items{$itemnum}} = $now;
8528: push(@deletions,$file_name."\0".$control_item);
8529: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
8530: } else {
8531: $new_control{$control_item} = $$curr_controls{$control_item};
8532: }
8533: }
1.745 raeburn 8534: }
8535: }
8536: }
1.970 raeburn 8537: my ($group);
8538: if (&is_course($domain,$user)) {
8539: ($group,my $file) = split(/\//,$file_name,2);
8540: }
1.749 raeburn 8541: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
8542: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
8543: $outcome = &put('file_permissions',\%new_values,$domain,$user);
8544: # remove lock
8545: my @del_lock = ($file_name."\0".'locked_access_records');
8546: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 8547: my $sqlresult =
1.970 raeburn 8548: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 8549: $group);
1.749 raeburn 8550: } else {
8551: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 8552: }
1.749 raeburn 8553: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 8554: }
8555:
1.827 raeburn 8556: sub make_public_indefinitely {
8557: my ($requrl) = @_;
8558: my $now = time;
8559: my $action = 'activate';
8560: my $aclnum = 0;
8561: if (&is_portfolio_url($requrl)) {
8562: my (undef,$udom,$unum,$file_name,$group) =
8563: &parse_portfolio_url($requrl);
8564: my $current_perms = &get_portfile_permissions($udom,$unum);
8565: my %access_controls = &get_access_controls($current_perms,
8566: $group,$file_name);
8567: foreach my $key (keys(%{$access_controls{$file_name}})) {
8568: my ($num,$scope,$end,$start) =
8569: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
8570: if ($scope eq 'public') {
8571: if ($start <= $now && $end == 0) {
8572: $action = 'none';
8573: } else {
8574: $action = 'update';
8575: $aclnum = $num;
8576: }
8577: last;
8578: }
8579: }
8580: if ($action eq 'none') {
8581: return 'ok';
8582: } else {
8583: my %changes;
8584: my $newend = 0;
8585: my $newstart = $now;
8586: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
8587: $changes{$action}{$newkey} = {
8588: type => 'public',
8589: time => {
8590: start => $newstart,
8591: end => $newend,
8592: },
8593: };
8594: my ($outcome,$deloutcome,$new_values,$translation) =
8595: &modify_access_controls($file_name,\%changes,$udom,$unum);
8596: return $outcome;
8597: }
8598: } else {
8599: return 'invalid';
8600: }
8601: }
8602:
1.745 raeburn 8603: #------------------------------------------------------Get Marked as Read Only
8604:
8605: sub get_marked_as_readonly {
8606: my ($domain,$user,$what,$group) = @_;
8607: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 8608: my @readonly_files;
1.629 banghart 8609: my $cmp1=$what;
8610: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 8611: while (my ($file_name,$value) = each(%{$current_permissions})) {
8612: if (defined($group)) {
8613: if ($file_name !~ m-^\Q$group\E/-) {
8614: next;
8615: }
8616: }
1.561 banghart 8617: if (ref($value) eq "ARRAY"){
8618: foreach my $stored_what (@{$value}) {
1.629 banghart 8619: my $cmp2=$stored_what;
1.759 albertel 8620: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 8621: $cmp2=join('',@{$stored_what});
1.745 raeburn 8622: }
1.629 banghart 8623: if ($cmp1 eq $cmp2) {
1.561 banghart 8624: push(@readonly_files, $file_name);
1.745 raeburn 8625: last;
1.563 banghart 8626: } elsif (!defined($what)) {
8627: push(@readonly_files, $file_name);
1.745 raeburn 8628: last;
1.561 banghart 8629: }
8630: }
1.745 raeburn 8631: }
1.561 banghart 8632: }
8633: return @readonly_files;
8634: }
1.577 banghart 8635: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 8636:
1.577 banghart 8637: sub get_marked_as_readonly_hash {
1.745 raeburn 8638: my ($current_permissions,$group,$what) = @_;
1.577 banghart 8639: my %readonly_files;
1.745 raeburn 8640: while (my ($file_name,$value) = each(%{$current_permissions})) {
8641: if (defined($group)) {
8642: if ($file_name !~ m-^\Q$group\E/-) {
8643: next;
8644: }
8645: }
1.577 banghart 8646: if (ref($value) eq "ARRAY"){
8647: foreach my $stored_what (@{$value}) {
1.745 raeburn 8648: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 8649: foreach my $lock_descriptor(@{$stored_what}) {
8650: if ($lock_descriptor eq 'graded') {
8651: $readonly_files{$file_name} = 'graded';
8652: } elsif ($lock_descriptor eq 'handback') {
8653: $readonly_files{$file_name} = 'handback';
8654: } else {
8655: if (!exists($readonly_files{$file_name})) {
8656: $readonly_files{$file_name} = 'locked';
8657: }
8658: }
1.745 raeburn 8659: }
1.750 banghart 8660: }
1.577 banghart 8661: }
8662: }
8663: }
8664: return %readonly_files;
8665: }
1.559 banghart 8666: # ------------------------------------------------------------ Unmark as Read Only
8667:
8668: sub unmark_as_readonly {
1.629 banghart 8669: # unmarks $file_name (if $file_name is defined), or all files locked by $what
8670: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 8671: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 8672: $file_name = &declutter_portfile($file_name);
1.634 albertel 8673: my $symb_crs = $what;
8674: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 8675: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 8676: my ($tmp)=keys(%current_permissions);
8677: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 8678: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 8679: foreach my $file (@readonly_files) {
1.759 albertel 8680: my $clean_file = &declutter_portfile($file);
8681: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 8682: my $current_locks = $current_permissions{$file};
1.563 banghart 8683: my @new_locks;
8684: my @del_keys;
8685: if (ref($current_locks) eq "ARRAY"){
8686: foreach my $locker (@{$current_locks}) {
1.632 albertel 8687: my $compare=$locker;
1.749 raeburn 8688: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 8689: $compare=join('',@{$locker});
1.746 raeburn 8690: if ($compare ne $symb_crs) {
8691: push(@new_locks, $locker);
8692: }
1.563 banghart 8693: }
8694: }
1.650 albertel 8695: if (scalar(@new_locks) > 0) {
1.563 banghart 8696: $current_permissions{$file} = \@new_locks;
8697: } else {
8698: push(@del_keys, $file);
1.613 albertel 8699: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 8700: delete($current_permissions{$file});
1.563 banghart 8701: }
8702: }
1.561 banghart 8703: }
1.613 albertel 8704: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 8705: return;
8706: }
1.512 banghart 8707:
1.17 www 8708: # ------------------------------------------------------------ Directory lister
8709:
8710: sub dirlist {
1.955 raeburn 8711: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 8712: $uri=~s/^\///;
8713: $uri=~s/\/$//;
1.253 stredwic 8714: my ($udom, $uname);
1.955 raeburn 8715: if ($getuserdir) {
1.253 stredwic 8716: $udom = $userdomain;
8717: $uname = $username;
1.955 raeburn 8718: } else {
8719: (undef,$udom,$uname)=split(/\//,$uri);
8720: if(defined($userdomain)) {
8721: $udom = $userdomain;
8722: }
8723: if(defined($username)) {
8724: $uname = $username;
8725: }
1.253 stredwic 8726: }
1.955 raeburn 8727: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 8728:
1.955 raeburn 8729: $dirRoot = $perlvar{'lonDocRoot'};
8730: if (defined($getpropath)) {
8731: $dirRoot = &propath($udom,$uname);
1.253 stredwic 8732: $dirRoot =~ s/\/$//;
1.955 raeburn 8733: } elsif (defined($getuserdir)) {
8734: my $subdir=$uname.'__';
8735: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
8736: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
8737: ."/$udom/$subdir/$uname";
8738: } elsif (defined($alternateRoot)) {
8739: $dirRoot = $alternateRoot;
1.751 banghart 8740: }
1.253 stredwic 8741:
8742: if($udom) {
8743: if($uname) {
1.1135 raeburn 8744: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 8745: if ($uhome eq 'no_host') {
8746: return ([],'no_host');
8747: }
1.955 raeburn 8748: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 8749: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 8750: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 8751: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 8752: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 8753: } else {
8754: @listing_results = map { &unescape($_); } split(/:/,$listing);
8755: }
1.605 matthew 8756: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 8757: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 8758: @listing_results = split(/:/,$listing);
8759: } else {
8760: @listing_results = map { &unescape($_); } split(/:/,$listing);
8761: }
1.1135 raeburn 8762: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 8763: ($listing eq 'rejected') || ($listing eq 'refused') ||
8764: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
8765: return ([],$listing);
8766: } else {
8767: return (\@listing_results);
1.1135 raeburn 8768: }
1.955 raeburn 8769: } elsif(!$alternateRoot) {
1.1136 raeburn 8770: my (%allusers,%listerror);
1.841 albertel 8771: my %servers = &get_servers($udom,'library');
1.955 raeburn 8772: foreach my $tryserver (keys(%servers)) {
8773: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
8774: &escape($udom),$tryserver);
8775: if ($listing eq 'unknown_cmd') {
8776: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
8777: $udom, $tryserver);
8778: } else {
8779: @listing_results = map { &unescape($_); } split(/:/,$listing);
8780: }
1.841 albertel 8781: if ($listing eq 'unknown_cmd') {
8782: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
8783: $udom, $tryserver);
8784: @listing_results = split(/:/,$listing);
8785: } else {
8786: @listing_results =
8787: map { &unescape($_); } split(/:/,$listing);
8788: }
1.1136 raeburn 8789: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
8790: ($listing eq 'rejected') || ($listing eq 'refused') ||
8791: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
8792: $listerror{$tryserver} = $listing;
8793: } else {
1.841 albertel 8794: foreach my $line (@listing_results) {
8795: my ($entry) = split(/&/,$line,2);
8796: $allusers{$entry} = 1;
8797: }
8798: }
1.253 stredwic 8799: }
1.1136 raeburn 8800: my @alluserslist=();
1.800 albertel 8801: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 8802: push(@alluserslist,$user.'&user');
1.253 stredwic 8803: }
1.1136 raeburn 8804: return (\@alluserslist);
1.253 stredwic 8805: } else {
1.1136 raeburn 8806: return ([],'missing username');
1.253 stredwic 8807: }
1.955 raeburn 8808: } elsif(!defined($getpropath)) {
1.1136 raeburn 8809: my $path = $perlvar{'lonDocRoot'}.'/res/';
8810: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
8811: return (\@all_domains);
1.955 raeburn 8812: } else {
1.1136 raeburn 8813: return ([],'missing domain');
1.275 stredwic 8814: }
8815: }
8816:
8817: # --------------------------------------------- GetFileTimestamp
8818: # This function utilizes dirlist and returns the date stamp for
8819: # when it was last modified. It will also return an error of -1
8820: # if an error occurs
8821:
8822: sub GetFileTimestamp {
1.955 raeburn 8823: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 8824: $studentDomain = &LONCAPA::clean_domain($studentDomain);
8825: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 8826: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
8827: undef,$getuserdir);
8828: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
8829: return -1;
8830: }
8831: if (ref($fileref) eq 'ARRAY') {
8832: my @stats = split('&',$fileref->[0]);
1.375 matthew 8833: # @stats contains first the filename, then the stat output
8834: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 8835: } else {
8836: return -1;
1.253 stredwic 8837: }
1.26 www 8838: }
8839:
1.712 albertel 8840: sub stat_file {
8841: my ($uri) = @_;
1.787 albertel 8842: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 8843:
1.955 raeburn 8844: my ($udom,$uname,$file);
1.712 albertel 8845: if ($uri =~ m-^/(uploaded|editupload)/-) {
8846: ($udom,$uname,$file) =
1.811 albertel 8847: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 8848: $file = 'userfiles/'.$file;
8849: }
8850: if ($uri =~ m-^/res/-) {
8851: ($udom,$uname) =
1.807 albertel 8852: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 8853: $file = $uri;
8854: }
8855:
8856: if (!$udom || !$uname || !$file) {
8857: # unable to handle the uri
8858: return ();
8859: }
1.956 raeburn 8860: my $getpropath;
8861: if ($file =~ /^userfiles\//) {
8862: $getpropath = 1;
8863: }
1.1136 raeburn 8864: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
8865: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
8866: return ();
8867: } else {
8868: if (ref($listref) eq 'ARRAY') {
8869: my @stats = split('&',$listref->[0]);
8870: shift(@stats); #filename is first
8871: return @stats;
8872: }
1.712 albertel 8873: }
8874: return ();
8875: }
8876:
1.26 www 8877: # -------------------------------------------------------- Value of a Condition
8878:
1.713 albertel 8879: # gets the value of a specific preevaluated condition
8880: # stored in the string $env{user.state.<cid>}
8881: # or looks up a condition reference in the bighash and if if hasn't
8882: # already been evaluated recurses into docondval to get the value of
8883: # the condition, then memoizing it to
8884: # $env{user.state.<cid>.<condition>}
1.40 www 8885: sub directcondval {
8886: my $number=shift;
1.620 albertel 8887: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 8888: &Apache::lonuserstate::evalstate();
8889: }
1.713 albertel 8890: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
8891: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
8892: } elsif ($number =~ /^_/) {
8893: my $sub_condition;
8894: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8895: &GDBM_READER(),0640)) {
8896: $sub_condition=$bighash{'conditions'.$number};
8897: untie(%bighash);
8898: }
8899: my $value = &docondval($sub_condition);
1.949 raeburn 8900: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 8901: return $value;
8902: }
1.620 albertel 8903: if ($env{'user.state.'.$env{'request.course.id'}}) {
8904: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 8905: } else {
8906: return 2;
8907: }
8908: }
8909:
1.713 albertel 8910: # get the collection of conditions for this resource
1.26 www 8911: sub condval {
8912: my $condidx=shift;
1.54 www 8913: my $allpathcond='';
1.713 albertel 8914: foreach my $cond (split(/\|/,$condidx)) {
8915: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
8916: $allpathcond.=
8917: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
8918: }
1.191 harris41 8919: }
1.54 www 8920: $allpathcond=~s/\|$//;
1.713 albertel 8921: return &docondval($allpathcond);
8922: }
8923:
8924: #evaluates an expression of conditions
8925: sub docondval {
8926: my ($allpathcond) = @_;
8927: my $result=0;
8928: if ($env{'request.course.id'}
8929: && defined($allpathcond)) {
8930: my $operand='|';
8931: my @stack;
8932: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
8933: if ($chunk eq '(') {
8934: push @stack,($operand,$result);
8935: } elsif ($chunk eq ')') {
8936: my $before=pop @stack;
8937: if (pop @stack eq '&') {
8938: $result=$result>$before?$before:$result;
8939: } else {
8940: $result=$result>$before?$result:$before;
8941: }
8942: } elsif (($chunk eq '&') || ($chunk eq '|')) {
8943: $operand=$chunk;
8944: } else {
8945: my $new=directcondval($chunk);
8946: if ($operand eq '&') {
8947: $result=$result>$new?$new:$result;
8948: } else {
8949: $result=$result>$new?$result:$new;
8950: }
8951: }
8952: }
1.26 www 8953: }
8954: return $result;
1.421 albertel 8955: }
8956:
8957: # ---------------------------------------------------- Devalidate courseresdata
8958:
8959: sub devalidatecourseresdata {
8960: my ($coursenum,$coursedomain)=@_;
8961: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 8962: &devalidate_cache_new('courseres',$hashid);
1.28 www 8963: }
8964:
1.763 www 8965:
1.200 www 8966: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 8967: #
8968: # Parameters:
8969: # $coursenum - Number of the course.
8970: # $coursedomain - Domain at which the course was created.
8971: # Returns:
8972: # A hash of the course parameters along (I think) with timestamps
8973: # and version info.
1.877 foxr 8974:
1.624 albertel 8975: sub get_courseresdata {
8976: my ($coursenum,$coursedomain)=@_;
1.200 www 8977: my $coursehom=&homeserver($coursenum,$coursedomain);
8978: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 8979: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 8980: my %dumpreply;
1.417 albertel 8981: unless (defined($cached)) {
1.624 albertel 8982: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 8983: $result=\%dumpreply;
1.251 albertel 8984: my ($tmp) = keys(%dumpreply);
8985: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 8986: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 8987: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
8988: return $tmp;
1.416 albertel 8989: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 8990: $result=undef;
1.599 albertel 8991: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 8992: }
8993: }
1.624 albertel 8994: return $result;
8995: }
8996:
1.633 albertel 8997: sub devalidateuserresdata {
8998: my ($uname,$udom)=@_;
8999: my $hashid="$udom:$uname";
9000: &devalidate_cache_new('userres',$hashid);
9001: }
9002:
1.624 albertel 9003: sub get_userresdata {
9004: my ($uname,$udom)=@_;
9005: #most student don\'t have any data set, check if there is some data
9006: if (&EXT_cache_status($udom,$uname)) { return undef; }
9007:
9008: my $hashid="$udom:$uname";
9009: my ($result,$cached)=&is_cached_new('userres',$hashid);
9010: if (!defined($cached)) {
9011: my %resourcedata=&dump('resourcedata',$udom,$uname);
9012: $result=\%resourcedata;
9013: &do_cache_new('userres',$hashid,$result,600);
9014: }
9015: my ($tmp)=keys(%$result);
9016: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
9017: return $result;
9018: }
9019: #error 2 occurs when the .db doesn't exist
9020: if ($tmp!~/error: 2 /) {
1.672 albertel 9021: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 9022: " Trying to get resource data for ".
9023: $uname." at ".$udom.": ".
9024: $tmp."</font>");
9025: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 9026: #&EXT_cache_set($udom,$uname);
9027: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 9028: undef($tmp); # not really an error so don't send it back
1.624 albertel 9029: }
9030: return $tmp;
9031: }
1.879 foxr 9032: #----------------------------------------------- resdata - return resource data
9033: # Purpose:
9034: # Return resource data for either users or for a course.
9035: # Parameters:
9036: # $name - Course/user name.
9037: # $domain - Name of the domain the user/course is registered on.
9038: # $type - Type of thing $name is (must be 'course' or 'user'
9039: # @which - Array of names of resources desired.
9040: # Returns:
9041: # The value of the first reasource in @which that is found in the
9042: # resource hash.
9043: # Exceptional Conditions:
9044: # If the $type passed in is not valid (not the string 'course' or
9045: # 'user', an undefined reference is returned.
9046: # If none of the resources are found, an undef is returned
1.624 albertel 9047: sub resdata {
9048: my ($name,$domain,$type,@which)=@_;
9049: my $result;
9050: if ($type eq 'course') {
9051: $result=&get_courseresdata($name,$domain);
9052: } elsif ($type eq 'user') {
9053: $result=&get_userresdata($name,$domain);
9054: }
9055: if (!ref($result)) { return $result; }
1.251 albertel 9056: foreach my $item (@which) {
1.927 albertel 9057: if (defined($result->{$item->[0]})) {
9058: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 9059: }
1.250 albertel 9060: }
1.291 albertel 9061: return undef;
1.200 www 9062: }
9063:
1.379 matthew 9064: #
9065: # EXT resource caching routines
9066: #
9067:
9068: sub clear_EXT_cache_status {
1.383 albertel 9069: &delenv('cache.EXT.');
1.379 matthew 9070: }
9071:
9072: sub EXT_cache_status {
9073: my ($target_domain,$target_user) = @_;
1.383 albertel 9074: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 9075: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 9076: # We know already the user has no data
9077: return 1;
9078: } else {
9079: return 0;
9080: }
9081: }
9082:
9083: sub EXT_cache_set {
9084: my ($target_domain,$target_user) = @_;
1.383 albertel 9085: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 9086: #&appenv({$cachename => time});
1.379 matthew 9087: }
9088:
1.28 www 9089: # --------------------------------------------------------- Value of a Variable
1.58 www 9090: sub EXT {
1.715 albertel 9091:
1.395 albertel 9092: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 9093: unless ($varname) { return ''; }
1.218 albertel 9094: #get real user name/domain, courseid and symb
9095: my $courseid;
1.359 albertel 9096: my $publicuser;
1.427 www 9097: if ($symbparm) {
9098: $symbparm=&get_symb_from_alias($symbparm);
9099: }
1.218 albertel 9100: if (!($uname && $udom)) {
1.790 albertel 9101: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 9102: if (!$symbparm) { $symbparm=$cursymb; }
9103: } else {
1.620 albertel 9104: $courseid=$env{'request.course.id'};
1.218 albertel 9105: }
1.48 www 9106: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
9107: my $rest;
1.320 albertel 9108: if (defined($therest[0])) {
1.48 www 9109: $rest=join('.',@therest);
9110: } else {
9111: $rest='';
9112: }
1.320 albertel 9113:
1.57 www 9114: my $qualifierrest=$qualifier;
9115: if ($rest) { $qualifierrest.='.'.$rest; }
9116: my $spacequalifierrest=$space;
9117: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 9118: if ($realm eq 'user') {
1.48 www 9119: # --------------------------------------------------------------- user.resource
9120: if ($space eq 'resource') {
1.651 albertel 9121: if ( (defined($Apache::lonhomework::parsing_a_problem)
9122: || defined($Apache::lonhomework::parsing_a_task))
9123: &&
1.744 albertel 9124: ($symbparm eq &symbread()) ) {
9125: # if we are in the middle of processing the resource the
9126: # get the value we are planning on committing
9127: if (defined($Apache::lonhomework::results{$qualifierrest})) {
9128: return $Apache::lonhomework::results{$qualifierrest};
9129: } else {
9130: return $Apache::lonhomework::history{$qualifierrest};
9131: }
1.335 albertel 9132: } else {
1.359 albertel 9133: my %restored;
1.620 albertel 9134: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 9135: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
9136: } else {
9137: %restored=&restore($symbparm,$courseid,$udom,$uname);
9138: }
1.335 albertel 9139: return $restored{$qualifierrest};
9140: }
1.48 www 9141: # ----------------------------------------------------------------- user.access
9142: } elsif ($space eq 'access') {
1.218 albertel 9143: # FIXME - not supporting calls for a specific user
1.48 www 9144: return &allowed($qualifier,$rest);
9145: # ------------------------------------------ user.preferences, user.environment
9146: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 9147: if (($uname eq $env{'user.name'}) &&
9148: ($udom eq $env{'user.domain'})) {
9149: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 9150: } else {
1.359 albertel 9151: my %returnhash;
9152: if (!$publicuser) {
9153: %returnhash=&userenvironment($udom,$uname,
9154: $qualifierrest);
9155: }
1.218 albertel 9156: return $returnhash{$qualifierrest};
9157: }
1.48 www 9158: # ----------------------------------------------------------------- user.course
9159: } elsif ($space eq 'course') {
1.218 albertel 9160: # FIXME - not supporting calls for a specific user
1.620 albertel 9161: return $env{join('.',('request.course',$qualifier))};
1.48 www 9162: # ------------------------------------------------------------------- user.role
9163: } elsif ($space eq 'role') {
1.218 albertel 9164: # FIXME - not supporting calls for a specific user
1.620 albertel 9165: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 9166: if ($qualifier eq 'value') {
9167: return $role;
9168: } elsif ($qualifier eq 'extent') {
9169: return $where;
9170: }
9171: # ----------------------------------------------------------------- user.domain
9172: } elsif ($space eq 'domain') {
1.218 albertel 9173: return $udom;
1.48 www 9174: # ------------------------------------------------------------------- user.name
9175: } elsif ($space eq 'name') {
1.218 albertel 9176: return $uname;
1.48 www 9177: # ---------------------------------------------------- Any other user namespace
1.29 www 9178: } else {
1.359 albertel 9179: my %reply;
9180: if (!$publicuser) {
9181: %reply=&get($space,[$qualifierrest],$udom,$uname);
9182: }
9183: return $reply{$qualifierrest};
1.48 www 9184: }
1.236 www 9185: } elsif ($realm eq 'query') {
9186: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 9187: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
9188: [$spacequalifierrest]);
1.620 albertel 9189: return $env{'form.'.$spacequalifierrest};
1.236 www 9190: } elsif ($realm eq 'request') {
1.48 www 9191: # ------------------------------------------------------------- request.browser
9192: if ($space eq 'browser') {
1.1145 bisitz 9193: return $env{'browser.'.$qualifier};
1.57 www 9194: # ------------------------------------------------------------ request.filename
9195: } else {
1.620 albertel 9196: return $env{'request.'.$spacequalifierrest};
1.29 www 9197: }
1.28 www 9198: } elsif ($realm eq 'course') {
1.48 www 9199: # ---------------------------------------------------------- course.description
1.620 albertel 9200: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 9201: } elsif ($realm eq 'resource') {
1.165 www 9202:
1.620 albertel 9203: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 9204: if (!$symbparm) { $symbparm=&symbread(); }
9205: }
1.693 albertel 9206:
9207: if ($space eq 'title') {
9208: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
9209: return &gettitle($symbparm);
9210: }
9211:
9212: if ($space eq 'map') {
9213: my ($map) = &decode_symb($symbparm);
9214: return &symbread($map);
9215: }
1.905 albertel 9216: if ($space eq 'filename') {
9217: if ($symbparm) {
9218: return &clutter((&decode_symb($symbparm))[2]);
9219: }
9220: return &hreflocation('',$env{'request.filename'});
9221: }
1.693 albertel 9222:
9223: my ($section, $group, @groups);
1.593 albertel 9224: my ($courselevelm,$courselevel);
1.539 albertel 9225: if ($symbparm && defined($courseid) &&
1.620 albertel 9226: $courseid eq $env{'request.course.id'}) {
1.165 www 9227:
1.218 albertel 9228: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 9229:
1.60 www 9230: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 9231: my $symbp=$symbparm;
1.735 albertel 9232: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 9233:
9234: my $symbparm=$symbp.'.'.$spacequalifierrest;
9235: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
9236:
1.620 albertel 9237: if (($env{'user.name'} eq $uname) &&
9238: ($env{'user.domain'} eq $udom)) {
9239: $section=$env{'request.course.sec'};
1.733 raeburn 9240: @groups = split(/:/,$env{'request.course.groups'});
9241: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 9242: } else {
1.539 albertel 9243: if (! defined($usection)) {
1.551 albertel 9244: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 9245: } else {
9246: $section = $usection;
9247: }
1.733 raeburn 9248: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 9249: }
9250:
9251: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
9252: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
9253: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
9254:
1.593 albertel 9255: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 9256: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 9257: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 9258:
1.60 www 9259: # ----------------------------------------------------------- first, check user
1.624 albertel 9260:
9261: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 9262: ([$courselevelr,'resource'],
9263: [$courselevelm,'map' ],
9264: [$courselevel, 'course' ]));
1.931 albertel 9265: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 9266:
1.594 albertel 9267: # ------------------------------------------------ second, check some of course
1.684 raeburn 9268: my $coursereply;
1.691 raeburn 9269: if (@groups > 0) {
9270: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
9271: $mapparm,$spacequalifierrest);
1.927 albertel 9272: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 9273: }
1.96 www 9274:
1.684 raeburn 9275: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 9276: $env{'course.'.$courseid.'.domain'},
9277: 'course',
9278: ([$seclevelr, 'resource'],
9279: [$seclevelm, 'map' ],
9280: [$seclevel, 'course' ],
9281: [$courselevelr,'resource']));
9282: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 9283:
1.60 www 9284: # ------------------------------------------------------ third, check map parms
1.218 albertel 9285: my %parmhash=();
9286: my $thisparm='';
9287: if (tie(%parmhash,'GDBM_File',
1.620 albertel 9288: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 9289: &GDBM_READER(),0640)) {
1.218 albertel 9290: $thisparm=$parmhash{$symbparm};
9291: untie(%parmhash);
9292: }
1.927 albertel 9293: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 9294: }
1.594 albertel 9295: # ------------------------------------------ fourth, look in resource metadata
1.71 www 9296:
1.218 albertel 9297: $spacequalifierrest=~s/\./\_/;
1.282 albertel 9298: my $filename;
9299: if (!$symbparm) { $symbparm=&symbread(); }
9300: if ($symbparm) {
1.409 www 9301: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 9302: } else {
1.620 albertel 9303: $filename=$env{'request.filename'};
1.282 albertel 9304: }
9305: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 9306: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 9307: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 9308: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 9309:
1.927 albertel 9310: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 9311: if ($symbparm && defined($courseid) &&
1.620 albertel 9312: $courseid eq $env{'request.course.id'}) {
1.624 albertel 9313: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
9314: $env{'course.'.$courseid.'.domain'},
9315: 'course',
1.927 albertel 9316: ([$courselevelm,'map' ],
9317: [$courselevel, 'course']));
9318: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 9319: }
1.145 www 9320: # ------------------------------------------------------------------ Cascade up
1.218 albertel 9321: unless ($space eq '0') {
1.336 albertel 9322: my @parts=split(/_/,$space);
9323: my $id=pop(@parts);
9324: my $part=join('_',@parts);
9325: if ($part eq '') { $part='0'; }
1.927 albertel 9326: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 9327: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 9328: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 9329: }
1.395 albertel 9330: if ($recurse) { return undef; }
9331: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 9332: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 9333: # ---------------------------------------------------- Any other user namespace
9334: } elsif ($realm eq 'environment') {
9335: # ----------------------------------------------------------------- environment
1.620 albertel 9336: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
9337: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 9338: } else {
1.770 albertel 9339: if ($uname eq 'anonymous' && $udom eq '') {
9340: return '';
9341: }
1.219 albertel 9342: my %returnhash=&userenvironment($udom,$uname,
9343: $spacequalifierrest);
9344: return $returnhash{$spacequalifierrest};
9345: }
1.28 www 9346: } elsif ($realm eq 'system') {
1.48 www 9347: # ----------------------------------------------------------------- system.time
9348: if ($space eq 'time') {
9349: return time;
9350: }
1.696 albertel 9351: } elsif ($realm eq 'server') {
9352: # ----------------------------------------------------------------- system.time
9353: if ($space eq 'name') {
9354: return $ENV{'SERVER_NAME'};
9355: }
1.28 www 9356: }
1.48 www 9357: return '';
1.61 www 9358: }
9359:
1.927 albertel 9360: sub get_reply {
9361: my ($reply_value) = @_;
1.940 raeburn 9362: if (ref($reply_value) eq 'ARRAY') {
9363: if (wantarray) {
9364: return @$reply_value;
9365: }
9366: return $reply_value->[0];
9367: } else {
9368: return $reply_value;
1.927 albertel 9369: }
9370: }
9371:
1.691 raeburn 9372: sub check_group_parms {
9373: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
9374: my @groupitems = ();
9375: my $resultitem;
1.927 albertel 9376: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 9377: foreach my $group (@{$groups}) {
9378: foreach my $level (@levels) {
1.927 albertel 9379: my $item = $courseid.'.['.$group.'].'.$level->[0];
9380: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 9381: }
9382: }
9383: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
9384: $env{'course.'.$courseid.'.domain'},
9385: 'course',@groupitems);
9386: return $coursereply;
9387: }
9388:
9389: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 9390: my ($courseid,@groups) = @_;
9391: @groups = sort(@groups);
1.691 raeburn 9392: return @groups;
9393: }
9394:
1.395 albertel 9395: sub packages_tab_default {
9396: my ($uri,$varname)=@_;
9397: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 9398:
9399: my (@extension,@specifics,$do_default);
9400: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 9401: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 9402: if ($pack_type eq 'default') {
9403: $do_default=1;
9404: } elsif ($pack_type eq 'extension') {
9405: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 9406: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 9407: # only look at packages defaults for packages that this id is
1.738 albertel 9408: push(@specifics,[$package,$pack_type,$pack_part]);
9409: }
9410: }
9411: # first look for a package that matches the requested part id
9412: foreach my $package (@specifics) {
9413: my (undef,$pack_type,$pack_part)=@{$package};
9414: next if ($pack_part ne $part);
9415: if (defined($packagetab{"$pack_type&$name&default"})) {
9416: return $packagetab{"$pack_type&$name&default"};
9417: }
9418: }
9419: # look for any possible matching non extension_ package
9420: foreach my $package (@specifics) {
9421: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 9422: if (defined($packagetab{"$pack_type&$name&default"})) {
9423: return $packagetab{"$pack_type&$name&default"};
9424: }
1.585 albertel 9425: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 9426: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
9427: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 9428: }
9429: }
1.738 albertel 9430: # look for any posible extension_ match
9431: foreach my $package (@extension) {
9432: my ($package,$pack_type)=@{$package};
9433: if (defined($packagetab{"$pack_type&$name&default"})) {
9434: return $packagetab{"$pack_type&$name&default"};
9435: }
9436: if (defined($packagetab{$package."&$name&default"})) {
9437: return $packagetab{$package."&$name&default"};
9438: }
9439: }
9440: # look for a global default setting
9441: if ($do_default && defined($packagetab{"default&$name&default"})) {
9442: return $packagetab{"default&$name&default"};
9443: }
1.395 albertel 9444: return undef;
9445: }
9446:
1.334 albertel 9447: sub add_prefix_and_part {
9448: my ($prefix,$part)=@_;
9449: my $keyroot;
9450: if (defined($prefix) && $prefix !~ /^__/) {
9451: # prefix that has a part already
9452: $keyroot=$prefix;
9453: } elsif (defined($prefix)) {
9454: # prefix that is missing a part
9455: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
9456: } else {
9457: # no prefix at all
9458: if (defined($part)) { $keyroot='_'.$part; }
9459: }
9460: return $keyroot;
9461: }
9462:
1.71 www 9463: # ---------------------------------------------------------------- Get metadata
9464:
1.599 albertel 9465: my %metaentry;
1.1070 www 9466: my %importedpartids;
1.71 www 9467: sub metadata {
1.176 www 9468: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 9469: $uri=&declutter($uri);
1.288 albertel 9470: # if it is a non metadata possible uri return quickly
1.529 albertel 9471: if (($uri eq '') ||
9472: (($uri =~ m|^/*adm/|) &&
1.698 albertel 9473: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.1108 raeburn 9474: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 9475: return undef;
9476: }
1.1140 www 9477: if (($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/)
1.924 albertel 9478: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 9479: return undef;
1.288 albertel 9480: }
1.73 www 9481: my $filename=$uri;
9482: $uri=~s/\.meta$//;
1.172 www 9483: #
9484: # Is the metadata already cached?
1.177 www 9485: # Look at timestamp of caching
1.172 www 9486: # Everything is cached by the main uri, libraries are never directly cached
9487: #
1.428 albertel 9488: if (!defined($liburi)) {
1.599 albertel 9489: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 9490: if (defined($cached)) { return $result->{':'.$what}; }
9491: }
9492: {
1.1069 www 9493: # Imported parts would go here
1.1070 www 9494: my %importedids=();
9495: my @origfileimportpartids=();
1.1069 www 9496: my $importedparts=0;
1.172 www 9497: #
9498: # Is this a recursive call for a library?
9499: #
1.599 albertel 9500: # if (! exists($metacache{$uri})) {
9501: # $metacache{$uri}={};
9502: # }
1.924 albertel 9503: my $cachetime = 60*60;
1.171 www 9504: if ($liburi) {
9505: $liburi=&declutter($liburi);
9506: $filename=$liburi;
1.401 bowersj2 9507: } else {
1.599 albertel 9508: &devalidate_cache_new('meta',$uri);
9509: undef(%metaentry);
1.401 bowersj2 9510: }
1.140 www 9511: my %metathesekeys=();
1.73 www 9512: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 9513: my $metastring;
1.1140 www 9514: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 9515: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 9516: $metastring =
1.929 albertel 9517: &Apache::lonnet::ssi_body($which,
1.924 albertel 9518: ('grade_target' => 'meta'));
9519: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 9520: } elsif (($uri !~ m -^(editupload)/-) &&
9521: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 9522: my $file=&filelocation('',&clutter($filename));
1.599 albertel 9523: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 9524: $metastring=&getfile($file);
1.489 albertel 9525: }
1.208 albertel 9526: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 9527: my $token;
1.140 www 9528: undef %metathesekeys;
1.71 www 9529: while ($token=$parser->get_token) {
1.339 albertel 9530: if ($token->[0] eq 'S') {
9531: if (defined($token->[2]->{'package'})) {
1.172 www 9532: #
9533: # This is a package - get package info
9534: #
1.339 albertel 9535: my $package=$token->[2]->{'package'};
9536: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9537: if (defined($token->[2]->{'id'})) {
9538: $keyroot.='_'.$token->[2]->{'id'};
9539: }
1.599 albertel 9540: if ($metaentry{':packages'}) {
9541: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 9542: } else {
1.599 albertel 9543: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 9544: }
1.736 albertel 9545: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 9546: my $part=$keyroot;
9547: $part=~s/^\_//;
1.736 albertel 9548: if ($pack_entry=~/^\Q$package\E\&/ ||
9549: $pack_entry=~/^\Q$package\E_0\&/) {
9550: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 9551: # ignore package.tab specified default values
9552: # here &package_tab_default() will fetch those
9553: if ($subp eq 'default') { next; }
1.736 albertel 9554: my $value=$packagetab{$pack_entry};
1.432 albertel 9555: my $unikey;
9556: if ($pack =~ /_0$/) {
9557: $unikey='parameter_0_'.$name;
9558: $part=0;
9559: } else {
9560: $unikey='parameter'.$keyroot.'_'.$name;
9561: }
1.339 albertel 9562: if ($subp eq 'display') {
9563: $value.=' [Part: '.$part.']';
9564: }
1.599 albertel 9565: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 9566: $metathesekeys{$unikey}=1;
1.599 albertel 9567: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
9568: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 9569: }
1.599 albertel 9570: if (defined($metaentry{':'.$unikey.'.default'})) {
9571: $metaentry{':'.$unikey}=
9572: $metaentry{':'.$unikey.'.default'};
1.356 albertel 9573: }
1.339 albertel 9574: }
9575: }
9576: } else {
1.172 www 9577: #
9578: # This is not a package - some other kind of start tag
1.339 albertel 9579: #
9580: my $entry=$token->[1];
1.1068 www 9581: my $unikey='';
1.175 www 9582:
1.339 albertel 9583: if ($entry eq 'import') {
1.175 www 9584: #
9585: # Importing a library here
1.339 albertel 9586: #
1.1067 www 9587: my $location=$parser->get_text('/import');
9588: my $dir=$filename;
9589: $dir=~s|[^/]*$||;
9590: $location=&filelocation($dir,$location);
1.1069 www 9591:
1.1068 www 9592: my $importmode=$token->[2]->{'importmode'};
9593: if ($importmode eq 'problem') {
1.1069 www 9594: # Import as problem/response
1.1068 www 9595: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9596: } elsif ($importmode eq 'part') {
9597: # Import as part(s)
1.1069 www 9598: $importedparts=1;
9599: # We need to get the original file and the imported file to get the part order correct
9600: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
9601: # Load and inspect original file
1.1070 www 9602: if ($#origfileimportpartids<0) {
9603: undef(%importedpartids);
9604: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
9605: my $origfile=&getfile($origfilelocation);
9606: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
9607: }
9608:
1.1069 www 9609: # Load and inspect imported file
9610: my $impfile=&getfile($location);
9611: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
9612: if ($#impfilepartids>=0) {
9613: # This problem had parts
1.1070 www 9614: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 9615: } else {
9616: # Importing by turning a single problem into a problem part
9617: # It gets the import-tags ID as part-ID
9618: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 9619: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 9620: }
1.1068 www 9621: } else {
9622: # Normal import
9623: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9624: if (defined($token->[2]->{'id'})) {
9625: $unikey.='_'.$token->[2]->{'id'};
9626: }
1.1067 www 9627: }
9628:
1.339 albertel 9629: if ($depthcount<20) {
1.736 albertel 9630: my $metadata =
9631: &metadata($uri,'keys', $location,$unikey,
9632: $depthcount+1);
9633: foreach my $meta (split(',',$metadata)) {
9634: $metaentry{':'.$meta}=$metaentry{':'.$meta};
9635: $metathesekeys{$meta}=1;
1.339 albertel 9636: }
1.1068 www 9637:
9638: }
1.1067 www 9639: } else {
9640: #
9641: # Not importing, some other kind of non-package, non-library start tag
9642: #
9643: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
9644: if (defined($token->[2]->{'id'})) {
9645: $unikey.='_'.$token->[2]->{'id'};
9646: }
1.339 albertel 9647: if (defined($token->[2]->{'name'})) {
9648: $unikey.='_'.$token->[2]->{'name'};
9649: }
9650: $metathesekeys{$unikey}=1;
1.736 albertel 9651: foreach my $param (@{$token->[3]}) {
9652: $metaentry{':'.$unikey.'.'.$param} =
9653: $token->[2]->{$param};
1.339 albertel 9654: }
9655: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 9656: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 9657: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
9658: # only ws inside the tag, and not in default, so use default
9659: # as value
1.599 albertel 9660: $metaentry{':'.$unikey}=$default;
1.908 albertel 9661: } elsif ( $internaltext =~ /\S/ ) {
9662: # something interesting inside the tag
9663: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 9664: } else {
1.908 albertel 9665: # no interesting values, don't set a default
1.339 albertel 9666: }
1.172 www 9667: # end of not-a-package not-a-library import
1.339 albertel 9668: }
1.172 www 9669: # end of not-a-package start tag
1.339 albertel 9670: }
1.172 www 9671: # the next is the end of "start tag"
1.339 albertel 9672: }
9673: }
1.483 albertel 9674: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 9675: $extension = lc($extension);
9676: if ($extension eq 'htm') { $extension='html'; }
9677:
1.737 albertel 9678: foreach my $key (keys(%packagetab)) {
1.483 albertel 9679: #no specific packages #how's our extension
9680: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 9681: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 9682: \%metathesekeys);
9683: }
1.883 albertel 9684:
9685: if (!exists($metaentry{':packages'})
9686: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 9687: foreach my $key (keys(%packagetab)) {
1.483 albertel 9688: #no specific packages well let's get default then
9689: if ($key!~/^default&/) { next; }
1.488 albertel 9690: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 9691: \%metathesekeys);
9692: }
9693: }
1.338 www 9694: # are there custom rights to evaluate
1.599 albertel 9695: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 9696:
1.338 www 9697: #
9698: # Importing a rights file here
1.339 albertel 9699: #
9700: unless ($depthcount) {
1.599 albertel 9701: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 9702: my $dir=$filename;
9703: $dir=~s|[^/]*$||;
9704: $location=&filelocation($dir,$location);
1.736 albertel 9705: my $rights_metadata =
9706: &metadata($uri,'keys',$location,'_rights',
9707: $depthcount+1);
9708: foreach my $rights (split(',',$rights_metadata)) {
9709: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
9710: $metathesekeys{$rights}=1;
1.339 albertel 9711: }
9712: }
9713: }
1.737 albertel 9714: # uniqifiy package listing
9715: my %seen;
9716: my @uniq_packages =
9717: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
9718: $metaentry{':packages'} = join(',',@uniq_packages);
9719:
1.1070 www 9720: if ($importedparts) {
9721: # We had imported parts and need to rebuild partorder
9722: $metaentry{':partorder'}='';
9723: $metathesekeys{'partorder'}=1;
9724: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
9725: if ($origfileimportpartids[$index] eq 'part') {
9726: # original part, part of the problem
9727: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
9728: } else {
9729: # we have imported parts at this position
9730: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
9731: }
9732: }
9733: $metaentry{':partorder'}=~s/^\,//;
9734: }
9735:
1.737 albertel 9736: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 9737: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
9738: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 9739: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 9740: # this is the end of "was not already recently cached
1.71 www 9741: }
1.599 albertel 9742: return $metaentry{':'.$what};
1.261 albertel 9743: }
9744:
1.488 albertel 9745: sub metadata_create_package_def {
1.483 albertel 9746: my ($uri,$key,$package,$metathesekeys)=@_;
9747: my ($pack,$name,$subp)=split(/\&/,$key);
9748: if ($subp eq 'default') { next; }
9749:
1.599 albertel 9750: if (defined($metaentry{':packages'})) {
9751: $metaentry{':packages'}.=','.$package;
1.483 albertel 9752: } else {
1.599 albertel 9753: $metaentry{':packages'}=$package;
1.483 albertel 9754: }
9755: my $value=$packagetab{$key};
9756: my $unikey;
9757: $unikey='parameter_0_'.$name;
1.599 albertel 9758: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 9759: $$metathesekeys{$unikey}=1;
1.599 albertel 9760: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
9761: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 9762: }
1.599 albertel 9763: if (defined($metaentry{':'.$unikey.'.default'})) {
9764: $metaentry{':'.$unikey}=
9765: $metaentry{':'.$unikey.'.default'};
1.483 albertel 9766: }
9767: }
9768:
1.261 albertel 9769: sub metadata_generate_part0 {
9770: my ($metadata,$metacache,$uri) = @_;
9771: my %allnames;
1.737 albertel 9772: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 9773: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 9774: my $part=$$metacache{':'.$metakey.'.part'};
9775: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 9776: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 9777: $allnames{$name}=$part;
9778: }
9779: }
9780: }
9781: foreach my $name (keys(%allnames)) {
9782: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 9783: my $key=":parameter_0_$name";
1.261 albertel 9784: $$metacache{"$key.part"}='0';
9785: $$metacache{"$key.name"}=$name;
1.428 albertel 9786: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 9787: $allnames{$name}.'_'.$name.
9788: '.type'};
1.428 albertel 9789: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 9790: '.display'};
1.644 www 9791: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 9792: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 9793: $$metacache{"$key.display"}=$olddis;
9794: }
1.71 www 9795: }
9796:
1.764 albertel 9797: # ------------------------------------------------------ Devalidate title cache
9798:
9799: sub devalidate_title_cache {
9800: my ($url)=@_;
9801: if (!$env{'request.course.id'}) { return; }
9802: my $symb=&symbread($url);
9803: if (!$symb) { return; }
9804: my $key=$env{'request.course.id'}."\0".$symb;
9805: &devalidate_cache_new('title',$key);
9806: }
9807:
1.1014 droeschl 9808: # ------------------------------------------------- Get the title of a course
9809:
9810: sub current_course_title {
9811: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
9812: }
1.301 www 9813: # ------------------------------------------------- Get the title of a resource
9814:
9815: sub gettitle {
9816: my $urlsymb=shift;
9817: my $symb=&symbread($urlsymb);
1.534 albertel 9818: if ($symb) {
1.620 albertel 9819: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 9820: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 9821: if (defined($cached)) {
9822: return $result;
9823: }
1.534 albertel 9824: my ($map,$resid,$url)=&decode_symb($symb);
9825: my $title='';
1.907 albertel 9826: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
9827: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
9828: } else {
9829: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9830: &GDBM_READER(),0640)) {
9831: my $mapid=$bighash{'map_pc_'.&clutter($map)};
9832: $title=$bighash{'title_'.$mapid.'.'.$resid};
9833: untie(%bighash);
9834: }
1.534 albertel 9835: }
9836: $title=~s/\&colon\;/\:/gs;
9837: if ($title) {
1.1159 www 9838: # Remember both $symb and $title for dynamic metadata
9839: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 9840: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 9841: # Cache this title and then return it
1.599 albertel 9842: return &do_cache_new('title',$key,$title,600);
1.534 albertel 9843: }
9844: $urlsymb=$url;
9845: }
9846: my $title=&metadata($urlsymb,'title');
9847: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
9848: return $title;
1.301 www 9849: }
1.613 albertel 9850:
1.614 albertel 9851: sub get_slot {
9852: my ($which,$cnum,$cdom)=@_;
9853: if (!$cnum || !$cdom) {
1.790 albertel 9854: (undef,my $courseid)=&whichuser();
1.620 albertel 9855: $cdom=$env{'course.'.$courseid.'.domain'};
9856: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 9857: }
1.703 albertel 9858: my $key=join("\0",'slots',$cdom,$cnum,$which);
9859: my %slotinfo;
9860: if (exists($remembered{$key})) {
9861: $slotinfo{$which} = $remembered{$key};
9862: } else {
9863: %slotinfo=&get('slots',[$which],$cdom,$cnum);
9864: &Apache::lonhomework::showhash(%slotinfo);
9865: my ($tmp)=keys(%slotinfo);
9866: if ($tmp=~/^error:/) { return (); }
9867: $remembered{$key} = $slotinfo{$which};
9868: }
1.616 albertel 9869: if (ref($slotinfo{$which}) eq 'HASH') {
9870: return %{$slotinfo{$which}};
9871: }
9872: return $slotinfo{$which};
1.614 albertel 9873: }
1.1150 raeburn 9874:
9875: sub get_reservable_slots {
9876: my ($cnum,$cdom,$uname,$udom) = @_;
9877: my $now = time;
9878: my $reservable_info;
9879: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
9880: if (exists($remembered{$key})) {
9881: $reservable_info = $remembered{$key};
9882: } else {
9883: my %resv;
9884: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
9885: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
9886: $reservable_info = \%resv;
9887: $remembered{$key} = $reservable_info;
9888: }
9889: return $reservable_info;
9890: }
9891:
9892: sub get_course_slots {
9893: my ($cnum,$cdom) = @_;
9894: my $hashid=$cnum.':'.$cdom;
9895: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
9896: if (defined($cached)) {
9897: if (ref($result) eq 'HASH') {
9898: return %{$result};
9899: }
9900: } else {
9901: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
9902: my ($tmp) = keys(%slots);
9903: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
9904: &Apache::lonnet::do_cache_new('allslots',$hashid,\%slots,600);
9905: return %slots;
9906: }
9907: }
9908: return;
9909: }
9910:
9911: sub devalidate_slots_cache {
9912: my ($cnum,$cdom)=@_;
9913: my $hashid=$cnum.':'.$cdom;
9914: &devalidate_cache_new('allslots',$hashid);
9915: }
9916:
1.1172.2.8 raeburn 9917: sub get_coursechange {
9918: my ($cdom,$cnum) = @_;
9919: if ($cdom eq '' || $cnum eq '') {
9920: return unless ($env{'request.course.id'});
9921: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
9922: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
9923: }
9924: my $hashid=$cdom.'_'.$cnum;
9925: my ($change,$cached)=&is_cached_new('crschange',$hashid);
9926: if ((defined($cached)) && ($change ne '')) {
9927: return $change;
9928: } else {
9929: my %crshash;
9930: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
9931: if ($crshash{'internal.contentchange'} eq '') {
9932: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
9933: if ($change eq '') {
9934: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
9935: $change = $crshash{'internal.created'};
9936: }
9937: } else {
9938: $change = $crshash{'internal.contentchange'};
9939: }
9940: my $cachetime = 600;
9941: &do_cache_new('crschange',$hashid,$change,$cachetime);
9942: }
9943: return $change;
9944: }
9945:
9946: sub devalidate_coursechange_cache {
9947: my ($cnum,$cdom)=@_;
9948: my $hashid=$cnum.':'.$cdom;
9949: &devalidate_cache_new('crschange',$hashid);
9950: }
9951:
1.31 www 9952: # ------------------------------------------------- Update symbolic store links
9953:
9954: sub symblist {
9955: my ($mapname,%newhash)=@_;
1.438 www 9956: $mapname=&deversion(&declutter($mapname));
1.31 www 9957: my %hash;
1.620 albertel 9958: if (($env{'request.course.fn'}) && (%newhash)) {
9959: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 9960: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 9961: foreach my $url (keys(%newhash)) {
1.711 albertel 9962: next if ($url eq 'last_known'
9963: && $env{'form.no_update_last_known'});
9964: $hash{declutter($url)}=&encode_symb($mapname,
9965: $newhash{$url}->[1],
9966: $newhash{$url}->[0]);
1.191 harris41 9967: }
1.31 www 9968: if (untie(%hash)) {
9969: return 'ok';
9970: }
9971: }
9972: }
9973: return 'error';
1.212 www 9974: }
9975:
9976: # --------------------------------------------------------------- Verify a symb
9977:
9978: sub symbverify {
1.510 www 9979: my ($symb,$thisurl)=@_;
9980: my $thisfn=$thisurl;
1.439 www 9981: $thisfn=&declutter($thisfn);
1.215 www 9982: # direct jump to resource in page or to a sequence - will construct own symbs
9983: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
9984: # check URL part
1.409 www 9985: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 9986:
1.431 www 9987: unless ($url eq $thisfn) { return 0; }
1.213 www 9988:
1.216 www 9989: $symb=&symbclean($symb);
1.510 www 9990: $thisurl=&deversion($thisurl);
1.439 www 9991: $thisfn=&deversion($thisfn);
1.213 www 9992:
9993: my %bighash;
9994: my $okay=0;
1.431 www 9995:
1.620 albertel 9996: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 9997: &GDBM_READER(),0640)) {
1.1032 raeburn 9998: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
9999: $thisurl =~ s/\?.+$//;
10000: }
1.510 www 10001: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1102 raeburn 10002: unless ($ids) {
10003: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
10004: $ids=$bighash{$idkey};
1.216 www 10005: }
10006: if ($ids) {
10007: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 10008: foreach my $id (split(/\,/,$ids)) {
10009: my ($mapid,$resid)=split(/\./,$id);
1.1032 raeburn 10010: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
10011: $symb =~ s/\?.+$//;
10012: }
1.216 www 10013: if (
10014: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
10015: eq $symb) {
1.620 albertel 10016: if (($env{'request.role.adv'}) ||
1.1101 raeburn 10017: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
10018: ($thisurl eq '/adm/navmaps')) {
1.582 albertel 10019: $okay=1;
10020: }
10021: }
1.216 www 10022: }
10023: }
1.213 www 10024: untie(%bighash);
10025: }
10026: return $okay;
1.31 www 10027: }
10028:
1.210 www 10029: # --------------------------------------------------------------- Clean-up symb
10030:
10031: sub symbclean {
10032: my $symb=shift;
1.568 albertel 10033: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 10034: # remove version from map
10035: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 10036:
1.210 www 10037: # remove version from URL
10038: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 10039:
1.507 www 10040: # remove wrapper
10041:
1.510 www 10042: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 10043: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 10044: return $symb;
1.409 www 10045: }
10046:
10047: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 10048:
10049: sub encode_symb {
10050: my ($map,$resid,$url)=@_;
10051: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
10052: }
1.409 www 10053:
10054: sub decode_symb {
1.568 albertel 10055: my $symb=shift;
10056: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
10057: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 10058: return (&fixversion($map),$resid,&fixversion($url));
10059: }
10060:
10061: sub fixversion {
10062: my $fn=shift;
1.609 banghart 10063: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 10064: my %bighash;
10065: my $uri=&clutter($fn);
1.620 albertel 10066: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 10067: # is this cached?
1.599 albertel 10068: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 10069: if (defined($cached)) { return $result; }
10070: # unfortunately not cached, or expired
1.620 albertel 10071: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 10072: &GDBM_READER(),0640)) {
10073: if ($bighash{'version_'.$uri}) {
10074: my $version=$bighash{'version_'.$uri};
1.444 www 10075: unless (($version eq 'mostrecent') ||
10076: ($version==&getversion($uri))) {
1.440 www 10077: $uri=~s/\.(\w+)$/\.$version\.$1/;
10078: }
10079: }
10080: untie %bighash;
1.413 www 10081: }
1.599 albertel 10082: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 10083: }
10084:
10085: sub deversion {
10086: my $url=shift;
10087: $url=~s/\.\d+\.(\w+)$/\.$1/;
10088: return $url;
1.210 www 10089: }
10090:
1.31 www 10091: # ------------------------------------------------------ Return symb list entry
10092:
10093: sub symbread {
1.249 www 10094: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 10095: my $cache_str='request.symbread.cached.'.$thisfn;
1.1172.2.8 raeburn 10096: if (defined($env{$cache_str})) {
10097: if (($thisfn) || ($env{$cache_str} ne '')) {
10098: return $env{$cache_str};
10099: }
10100: }
1.242 www 10101: # no filename provided? try from environment
1.44 www 10102: unless ($thisfn) {
1.620 albertel 10103: if ($env{'request.symb'}) {
10104: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 10105: }
1.620 albertel 10106: $thisfn=$env{'request.filename'};
1.44 www 10107: }
1.569 albertel 10108: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 10109: # is that filename actually a symb? Verify, clean, and return
10110: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 10111: if (&symbverify($thisfn,$1)) {
1.620 albertel 10112: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 10113: }
1.242 www 10114: }
1.44 www 10115: $thisfn=declutter($thisfn);
1.31 www 10116: my %hash;
1.37 www 10117: my %bighash;
10118: my $syval='';
1.620 albertel 10119: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 10120: my $targetfn = $thisfn;
1.609 banghart 10121: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 10122: $targetfn = 'adm/wrapper/'.$thisfn;
10123: }
1.687 albertel 10124: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
10125: $targetfn=$1;
10126: }
1.620 albertel 10127: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10128: &GDBM_READER(),0640)) {
1.481 raeburn 10129: $syval=$hash{$targetfn};
1.37 www 10130: untie(%hash);
10131: }
10132: # ---------------------------------------------------------- There was an entry
10133: if ($syval) {
1.601 albertel 10134: #unless ($syval=~/\_\d+$/) {
1.620 albertel 10135: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 10136: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10137: #return $env{$cache_str}='';
1.601 albertel 10138: #}
10139: #$syval.=$1;
10140: #}
1.37 www 10141: } else {
10142: # ------------------------------------------------------- Was not in symb table
1.620 albertel 10143: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10144: &GDBM_READER(),0640)) {
1.37 www 10145: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 10146: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 10147: unless ($ids) {
10148: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 10149: }
10150: unless ($ids) {
10151: # alias?
10152: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 10153: }
1.37 www 10154: if ($ids) {
10155: # ------------------------------------------------------------------- Has ID(s)
10156: my @possibilities=split(/\,/,$ids);
1.39 www 10157: if ($#possibilities==0) {
10158: # ----------------------------------------------- There is only one possibility
1.37 www 10159: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 10160: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10161: $resid,$thisfn);
1.249 www 10162: } elsif (!$donotrecurse) {
1.39 www 10163: # ------------------------------------------ There is more than one possibility
10164: my $realpossible=0;
1.800 albertel 10165: foreach my $id (@possibilities) {
10166: my $file=$bighash{'src_'.$id};
1.39 www 10167: if (&allowed('bre',$file)) {
1.800 albertel 10168: my ($mapid,$resid)=split(/\./,$id);
1.39 www 10169: if ($bighash{'map_type_'.$mapid} ne 'page') {
10170: $realpossible++;
1.626 albertel 10171: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10172: $resid,$thisfn);
1.39 www 10173: }
10174: }
1.191 harris41 10175: }
1.39 www 10176: if ($realpossible!=1) { $syval=''; }
1.249 www 10177: } else {
10178: $syval='';
1.37 www 10179: }
10180: }
10181: untie(%bighash)
1.481 raeburn 10182: }
1.31 www 10183: }
1.62 www 10184: if ($syval) {
1.620 albertel 10185: return $env{$cache_str}=$syval;
1.62 www 10186: }
1.31 www 10187: }
1.949 raeburn 10188: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10189: return $env{$cache_str}='';
1.31 www 10190: }
10191:
10192: # ---------------------------------------------------------- Return random seed
10193:
1.32 www 10194: sub numval {
10195: my $txt=shift;
10196: $txt=~tr/A-J/0-9/;
10197: $txt=~tr/a-j/0-9/;
10198: $txt=~tr/K-T/0-9/;
10199: $txt=~tr/k-t/0-9/;
10200: $txt=~tr/U-Z/0-5/;
10201: $txt=~tr/u-z/0-5/;
10202: $txt=~s/\D//g;
1.564 albertel 10203: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 10204: return int($txt);
1.368 albertel 10205: }
10206:
1.484 albertel 10207: sub numval2 {
10208: my $txt=shift;
10209: $txt=~tr/A-J/0-9/;
10210: $txt=~tr/a-j/0-9/;
10211: $txt=~tr/K-T/0-9/;
10212: $txt=~tr/k-t/0-9/;
10213: $txt=~tr/U-Z/0-5/;
10214: $txt=~tr/u-z/0-5/;
10215: $txt=~s/\D//g;
10216: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10217: my $total;
10218: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 10219: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 10220: return int($total);
10221: }
10222:
1.575 albertel 10223: sub numval3 {
10224: use integer;
10225: my $txt=shift;
10226: $txt=~tr/A-J/0-9/;
10227: $txt=~tr/a-j/0-9/;
10228: $txt=~tr/K-T/0-9/;
10229: $txt=~tr/k-t/0-9/;
10230: $txt=~tr/U-Z/0-5/;
10231: $txt=~tr/u-z/0-5/;
10232: $txt=~s/\D//g;
10233: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10234: my $total;
10235: foreach my $val (@txts) { $total+=$val; }
10236: if ($_64bit) { $total=(($total<<32)>>32); }
10237: return $total;
10238: }
10239:
1.675 albertel 10240: sub digest {
10241: my ($data)=@_;
10242: my $digest=&Digest::MD5::md5($data);
10243: my ($a,$b,$c,$d)=unpack("iiii",$digest);
10244: my ($e,$f);
10245: {
10246: use integer;
10247: $e=($a+$b);
10248: $f=($c+$d);
10249: if ($_64bit) {
10250: $e=(($e<<32)>>32);
10251: $f=(($f<<32)>>32);
10252: }
10253: }
10254: if (wantarray) {
10255: return ($e,$f);
10256: } else {
10257: my $g;
10258: {
10259: use integer;
10260: $g=($e+$f);
10261: if ($_64bit) {
10262: $g=(($g<<32)>>32);
10263: }
10264: }
10265: return $g;
10266: }
10267: }
10268:
1.368 albertel 10269: sub latest_rnd_algorithm_id {
1.675 albertel 10270: return '64bit5';
1.366 albertel 10271: }
1.32 www 10272:
1.503 albertel 10273: sub get_rand_alg {
10274: my ($courseid)=@_;
1.790 albertel 10275: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 10276: if ($courseid) {
1.620 albertel 10277: return $env{"course.$courseid.rndseed"};
1.503 albertel 10278: }
10279: return &latest_rnd_algorithm_id();
10280: }
10281:
1.562 albertel 10282: sub validCODE {
10283: my ($CODE)=@_;
10284: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
10285: return 0;
10286: }
10287:
1.491 albertel 10288: sub getCODE {
1.620 albertel 10289: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 10290: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
10291: defined($Apache::lonhomework::parsing_a_task) ) &&
10292: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 10293: return $Apache::lonhomework::history{'resource.CODE'};
10294: }
10295: return undef;
10296: }
1.1133 foxr 10297: #
10298: # Determines the random seed for a specific context:
10299: #
10300: # parameters:
10301: # symb - in course context the symb for the seed.
10302: # course_id - The course id of the form domain_coursenum.
10303: # domain - Domain for the user.
10304: # course - Course for the user.
10305: # cenv - environment of the course.
10306: #
10307: # NOTE:
10308: # All parameters are picked out of the environment if missing
10309: # or not defined.
10310: # If a symb cannot be determined the current time is used instead.
10311: #
10312: # For a given well defined symb, courside, domain, username,
10313: # and course environment, the seed is reproducible.
10314: #
1.31 www 10315: sub rndseed {
1.1133 foxr 10316: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 10317: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 10318: if (!defined($symb)) {
1.366 albertel 10319: unless ($symb=$wsymb) { return time; }
10320: }
1.1146 foxr 10321: if (!defined $courseid) {
10322: $courseid=$wcourseid;
10323: }
10324: if (!defined $domain) { $domain=$wdomain; }
10325: if (!defined $username) { $username=$wusername }
1.1133 foxr 10326:
10327: my $which;
10328: if (defined($cenv->{'rndseed'})) {
10329: $which = $cenv->{'rndseed'};
10330: } else {
10331: $which =&get_rand_alg($courseid);
10332: }
1.491 albertel 10333: if (defined(&getCODE())) {
1.1133 foxr 10334:
1.675 albertel 10335: if ($which eq '64bit5') {
10336: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
10337: } elsif ($which eq '64bit4') {
1.575 albertel 10338: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
10339: } else {
10340: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
10341: }
1.675 albertel 10342: } elsif ($which eq '64bit5') {
10343: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 10344: } elsif ($which eq '64bit4') {
10345: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 10346: } elsif ($which eq '64bit3') {
10347: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 10348: } elsif ($which eq '64bit2') {
10349: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 10350: } elsif ($which eq '64bit') {
10351: return &rndseed_64bit($symb,$courseid,$domain,$username);
10352: }
10353: return &rndseed_32bit($symb,$courseid,$domain,$username);
10354: }
10355:
10356: sub rndseed_32bit {
10357: my ($symb,$courseid,$domain,$username)=@_;
10358: {
10359: use integer;
10360: my $symbchck=unpack("%32C*",$symb) << 27;
10361: my $symbseed=numval($symb) << 22;
10362: my $namechck=unpack("%32C*",$username) << 17;
10363: my $nameseed=numval($username) << 12;
10364: my $domainseed=unpack("%32C*",$domain) << 7;
10365: my $courseseed=unpack("%32C*",$courseid);
10366: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 10367: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10368: #&logthis("rndseed :$num:$symb");
1.564 albertel 10369: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 10370: return $num;
10371: }
10372: }
10373:
10374: sub rndseed_64bit {
10375: my ($symb,$courseid,$domain,$username)=@_;
10376: {
10377: use integer;
10378: my $symbchck=unpack("%32S*",$symb) << 21;
10379: my $symbseed=numval($symb) << 10;
10380: my $namechck=unpack("%32S*",$username);
10381:
10382: my $nameseed=numval($username) << 21;
10383: my $domainseed=unpack("%32S*",$domain) << 10;
10384: my $courseseed=unpack("%32S*",$courseid);
10385:
10386: my $num1=$symbchck+$symbseed+$namechck;
10387: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10388: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10389: #&logthis("rndseed :$num:$symb");
1.564 albertel 10390: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 10391: return "$num1,$num2";
1.155 albertel 10392: }
1.366 albertel 10393: }
10394:
1.443 albertel 10395: sub rndseed_64bit2 {
10396: my ($symb,$courseid,$domain,$username)=@_;
10397: {
10398: use integer;
10399: # strings need to be an even # of cahracters long, it it is odd the
10400: # last characters gets thrown away
10401: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10402: my $symbseed=numval($symb) << 10;
10403: my $namechck=unpack("%32S*",$username.' ');
10404:
10405: my $nameseed=numval($username) << 21;
1.501 albertel 10406: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10407: my $courseseed=unpack("%32S*",$courseid.' ');
10408:
10409: my $num1=$symbchck+$symbseed+$namechck;
10410: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10411: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10412: #&logthis("rndseed :$num:$symb");
1.803 albertel 10413: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 10414: return "$num1,$num2";
10415: }
10416: }
10417:
10418: sub rndseed_64bit3 {
10419: my ($symb,$courseid,$domain,$username)=@_;
10420: {
10421: use integer;
10422: # strings need to be an even # of cahracters long, it it is odd the
10423: # last characters gets thrown away
10424: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10425: my $symbseed=numval2($symb) << 10;
10426: my $namechck=unpack("%32S*",$username.' ');
10427:
10428: my $nameseed=numval2($username) << 21;
1.443 albertel 10429: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10430: my $courseseed=unpack("%32S*",$courseid.' ');
10431:
10432: my $num1=$symbchck+$symbseed+$namechck;
10433: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10434: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10435: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 10436: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10437:
1.503 albertel 10438: return "$num1:$num2";
1.443 albertel 10439: }
10440: }
10441:
1.575 albertel 10442: sub rndseed_64bit4 {
10443: my ($symb,$courseid,$domain,$username)=@_;
10444: {
10445: use integer;
10446: # strings need to be an even # of cahracters long, it it is odd the
10447: # last characters gets thrown away
10448: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10449: my $symbseed=numval3($symb) << 10;
10450: my $namechck=unpack("%32S*",$username.' ');
10451:
10452: my $nameseed=numval3($username) << 21;
10453: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10454: my $courseseed=unpack("%32S*",$courseid.' ');
10455:
10456: my $num1=$symbchck+$symbseed+$namechck;
10457: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10458: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10459: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 10460: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10461:
1.575 albertel 10462: return "$num1:$num2";
10463: }
10464: }
10465:
1.675 albertel 10466: sub rndseed_64bit5 {
10467: my ($symb,$courseid,$domain,$username)=@_;
10468: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
10469: return "$num1:$num2";
10470: }
10471:
1.366 albertel 10472: sub rndseed_CODE_64bit {
10473: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 10474: {
1.366 albertel 10475: use integer;
1.443 albertel 10476: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 10477: my $symbseed=numval2($symb);
1.491 albertel 10478: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
10479: my $CODEseed=numval(&getCODE());
1.443 albertel 10480: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 10481: my $num1=$symbseed+$CODEchck;
10482: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 10483: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
10484: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 10485: if ($_64bit) { $num1=(($num1<<32)>>32); }
10486: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 10487: return "$num1:$num2";
1.366 albertel 10488: }
10489: }
10490:
1.575 albertel 10491: sub rndseed_CODE_64bit4 {
10492: my ($symb,$courseid,$domain,$username)=@_;
10493: {
10494: use integer;
10495: my $symbchck=unpack("%32S*",$symb.' ') << 16;
10496: my $symbseed=numval3($symb);
10497: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
10498: my $CODEseed=numval3(&getCODE());
10499: my $courseseed=unpack("%32S*",$courseid.' ');
10500: my $num1=$symbseed+$CODEchck;
10501: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 10502: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
10503: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 10504: if ($_64bit) { $num1=(($num1<<32)>>32); }
10505: if ($_64bit) { $num2=(($num2<<32)>>32); }
10506: return "$num1:$num2";
10507: }
10508: }
10509:
1.675 albertel 10510: sub rndseed_CODE_64bit5 {
10511: my ($symb,$courseid,$domain,$username)=@_;
10512: my $code = &getCODE();
10513: my ($num1,$num2)=&digest("$symb,$courseid,$code");
10514: return "$num1:$num2";
10515: }
10516:
1.366 albertel 10517: sub setup_random_from_rndseed {
10518: my ($rndseed)=@_;
1.503 albertel 10519: if ($rndseed =~/([,:])/) {
10520: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 10521: &Math::Random::random_set_seed(abs($num1),abs($num2));
10522: } else {
10523: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 10524: }
1.36 albertel 10525: }
10526:
1.474 albertel 10527: sub latest_receipt_algorithm_id {
1.835 albertel 10528: return 'receipt3';
1.474 albertel 10529: }
10530:
1.480 www 10531: sub recunique {
10532: my $fucourseid=shift;
10533: my $unique;
1.835 albertel 10534: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
10535: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 10536: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 10537: } else {
10538: $unique=$perlvar{'lonReceipt'};
10539: }
10540: return unpack("%32C*",$unique);
10541: }
10542:
10543: sub recprefix {
10544: my $fucourseid=shift;
10545: my $prefix;
1.835 albertel 10546: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
10547: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 10548: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 10549: } else {
10550: $prefix=$perlvar{'lonHostID'};
10551: }
10552: return unpack("%32C*",$prefix);
10553: }
10554:
1.76 www 10555: sub ireceipt {
1.474 albertel 10556: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 10557:
10558: my $return =&recprefix($fucourseid).'-';
10559:
10560: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
10561: $env{'request.state'} eq 'construct') {
10562: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
10563: return $return;
10564: }
10565:
1.76 www 10566: my $cuname=unpack("%32C*",$funame);
10567: my $cudom=unpack("%32C*",$fudom);
10568: my $cucourseid=unpack("%32C*",$fucourseid);
10569: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 10570: my $cunique=&recunique($fucourseid);
1.474 albertel 10571: my $cpart=unpack("%32S*",$part);
1.835 albertel 10572: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
10573:
1.790 albertel 10574: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 10575:
10576: $return.= ($cunique%$cuname+
10577: $cunique%$cudom+
10578: $cusymb%$cuname+
10579: $cusymb%$cudom+
10580: $cucourseid%$cuname+
10581: $cucourseid%$cudom+
10582: $cpart%$cuname+
10583: $cpart%$cudom);
10584: } else {
10585: $return.= ($cunique%$cuname+
10586: $cunique%$cudom+
10587: $cusymb%$cuname+
10588: $cusymb%$cudom+
10589: $cucourseid%$cuname+
10590: $cucourseid%$cudom);
10591: }
10592: return $return;
1.76 www 10593: }
10594:
10595: sub receipt {
1.474 albertel 10596: my ($part)=@_;
1.790 albertel 10597: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 10598: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 10599: }
1.260 ng 10600:
1.790 albertel 10601: sub whichuser {
10602: my ($passedsymb)=@_;
10603: my ($symb,$courseid,$domain,$name,$publicuser);
10604: if (defined($env{'form.grade_symb'})) {
10605: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
10606: my $allowed=&allowed('vgr',$tmp_courseid);
10607: if (!$allowed &&
10608: exists($env{'request.course.sec'}) &&
10609: $env{'request.course.sec'} !~ /^\s*$/) {
10610: $allowed=&allowed('vgr',$tmp_courseid.
10611: '/'.$env{'request.course.sec'});
10612: }
10613: if ($allowed) {
10614: ($symb)=&get_env_multiple('form.grade_symb');
10615: $courseid=$tmp_courseid;
10616: ($domain)=&get_env_multiple('form.grade_domain');
10617: ($name)=&get_env_multiple('form.grade_username');
10618: return ($symb,$courseid,$domain,$name,$publicuser);
10619: }
10620: }
10621: if (!$passedsymb) {
10622: $symb=&symbread();
10623: } else {
10624: $symb=$passedsymb;
10625: }
10626: $courseid=$env{'request.course.id'};
10627: $domain=$env{'user.domain'};
10628: $name=$env{'user.name'};
10629: if ($name eq 'public' && $domain eq 'public') {
10630: if (!defined($env{'form.username'})) {
10631: $env{'form.username'}.=time.rand(10000000);
10632: }
10633: $name.=$env{'form.username'};
10634: }
10635: return ($symb,$courseid,$domain,$name,$publicuser);
10636:
10637: }
10638:
1.36 albertel 10639: # ------------------------------------------------------------ Serves up a file
1.472 albertel 10640: # returns either the contents of the file or
10641: # -1 if the file doesn't exist
1.481 raeburn 10642: #
10643: # if the target is a file that was uploaded via DOCS,
10644: # a check will be made to see if a current copy exists on the local server,
10645: # if it does this will be served, otherwise a copy will be retrieved from
10646: # the home server for the course and stored in /home/httpd/html/userfiles on
10647: # the local server.
1.472 albertel 10648:
1.36 albertel 10649: sub getfile {
1.538 albertel 10650: my ($file) = @_;
1.609 banghart 10651: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 10652: &repcopy($file);
10653: return &readfile($file);
10654: }
10655:
10656: sub repcopy_userfile {
10657: my ($file)=@_;
1.1142 raeburn 10658: my $londocroot = $perlvar{'lonDocRoot'};
10659: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 10660: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 10661: my ($cdom,$cnum,$filename) =
1.811 albertel 10662: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 10663: my $uri="/uploaded/$cdom/$cnum/$filename";
10664: if (-e "$file") {
1.828 www 10665: # we already have a local copy, check it out
1.538 albertel 10666: my @fileinfo = stat($file);
1.828 www 10667: my $rtncode;
10668: my $info;
1.538 albertel 10669: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 10670: if ($lwpresp ne 'ok') {
1.828 www 10671: # there is no such file anymore, even though we had a local copy
1.482 albertel 10672: if ($rtncode eq '404') {
1.538 albertel 10673: unlink($file);
1.482 albertel 10674: }
10675: return -1;
10676: }
10677: if ($info < $fileinfo[9]) {
1.828 www 10678: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 10679: return 'ok';
1.828 www 10680: } else {
10681: # the file is outdated, get rid of it
10682: unlink($file);
1.482 albertel 10683: }
1.828 www 10684: }
10685: # one way or the other, at this point, we don't have the file
10686: # construct the correct path for the file
10687: my @parts = ($cdom,$cnum);
10688: if ($filename =~ m|^(.+)/[^/]+$|) {
10689: push @parts, split(/\//,$1);
10690: }
10691: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
10692: foreach my $part (@parts) {
10693: $path .= '/'.$part;
10694: if (!-e $path) {
10695: mkdir($path,0770);
1.482 albertel 10696: }
10697: }
1.828 www 10698: # now the path exists for sure
10699: # get a user agent
10700: my $ua=new LWP::UserAgent;
10701: my $transferfile=$file.'.in.transfer';
10702: # FIXME: this should flock
10703: if (-e $transferfile) { return 'ok'; }
10704: my $request;
10705: $uri=~s/^\///;
1.980 raeburn 10706: my $homeserver = &homeserver($cnum,$cdom);
10707: my $protocol = $protocol{$homeserver};
10708: $protocol = 'http' if ($protocol ne 'https');
10709: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 10710: my $response=$ua->request($request,$transferfile);
10711: # did it work?
10712: if ($response->is_error()) {
10713: unlink($transferfile);
10714: &logthis("Userfile repcopy failed for $uri");
10715: return -1;
10716: }
10717: # worked, rename the transfer file
10718: rename($transferfile,$file);
1.607 raeburn 10719: return 'ok';
1.481 raeburn 10720: }
10721:
1.517 albertel 10722: sub tokenwrapper {
10723: my $uri=shift;
1.980 raeburn 10724: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 10725: $uri=~s|^/||;
1.620 albertel 10726: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 10727: my $token=$1;
1.552 albertel 10728: my (undef,$udom,$uname,$file)=split('/',$uri,4);
10729: if ($udom && $uname && $file) {
10730: $file=~s|(\?\.*)*$||;
1.949 raeburn 10731: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 10732: my $homeserver = &homeserver($uname,$udom);
10733: my $protocol = $protocol{$homeserver};
10734: $protocol = 'http' if ($protocol ne 'https');
10735: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 10736: (($uri=~/\?/)?'&':'?').'token='.$token.
10737: '&tokenissued='.$perlvar{'lonHostID'};
10738: } else {
10739: return '/adm/notfound.html';
10740: }
10741: }
10742:
1.828 www 10743: # call with reqtype HEAD: get last modification time
10744: # call with reqtype GET: get the file contents
10745: # Do not call this with reqtype GET for large files! It loads everything into memory
10746: #
1.481 raeburn 10747: sub getuploaded {
10748: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
10749: $uri=~s/^\///;
1.980 raeburn 10750: my $homeserver = &homeserver($cnum,$cdom);
10751: my $protocol = $protocol{$homeserver};
10752: $protocol = 'http' if ($protocol ne 'https');
10753: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 10754: my $ua=new LWP::UserAgent;
10755: my $request=new HTTP::Request($reqtype,$uri);
10756: my $response=$ua->request($request);
10757: $$rtncode = $response->code;
1.482 albertel 10758: if (! $response->is_success()) {
10759: return 'failed';
10760: }
10761: if ($reqtype eq 'HEAD') {
1.486 www 10762: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 10763: } elsif ($reqtype eq 'GET') {
10764: $$info = $response->content;
1.472 albertel 10765: }
1.482 albertel 10766: return 'ok';
1.36 albertel 10767: }
10768:
1.481 raeburn 10769: sub readfile {
10770: my $file = shift;
10771: if ( (! -e $file ) || ($file eq '') ) { return -1; };
10772: my $fh;
10773: open($fh,"<$file");
10774: my $a='';
1.800 albertel 10775: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 10776: return $a;
10777: }
10778:
1.36 albertel 10779: sub filelocation {
1.590 banghart 10780: my ($dir,$file) = @_;
10781: my $location;
10782: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 10783:
10784: if ($file =~ m-^/adm/-) {
10785: $file=~s-^/adm/wrapper/-/-;
10786: $file=~s-^/adm/coursedocs/showdoc/-/-;
10787: }
1.882 albertel 10788:
1.1139 www 10789: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 10790: $location = $file;
1.609 banghart 10791: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 10792: my ($udom,$uname,$filename)=
1.811 albertel 10793: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 10794: my $home=&homeserver($uname,$udom);
10795: my $is_me=0;
10796: my @ids=¤t_machine_ids();
10797: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
10798: if ($is_me) {
1.1117 foxr 10799: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 10800: } else {
10801: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
10802: $udom.'/'.$uname.'/'.$filename;
10803: }
1.882 albertel 10804: } elsif ($file =~ m-^/adm/-) {
10805: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 10806: } else {
10807: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 10808: $file=~s:^/(res|priv)/:/:;
10809: my $space=$1;
1.590 banghart 10810: if ( !( $file =~ m:^/:) ) {
10811: $location = $dir. '/'.$file;
10812: } else {
1.1142 raeburn 10813: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 10814: }
1.59 albertel 10815: }
1.590 banghart 10816: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 10817: while ($location=~m{/\.\./}) {
10818: if ($location =~ m{/[^/]+/\.\./}) {
10819: $location=~ s{/[^/]+/\.\./}{/}g;
10820: } else {
10821: $location=~ s{/\.\./}{/}g;
10822: }
10823: } #remove dir/..
1.590 banghart 10824: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
10825: return $location;
1.46 www 10826: }
1.36 albertel 10827:
1.46 www 10828: sub hreflocation {
10829: my ($dir,$file)=@_;
1.980 raeburn 10830: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 10831: $file=filelocation($dir,$file);
1.700 albertel 10832: } elsif ($file=~m-^/adm/-) {
10833: $file=~s-^/adm/wrapper/-/-;
10834: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 10835: }
10836: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
10837: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
10838: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 10839: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
10840: {/uploaded/$1/$2/}x;
1.46 www 10841: }
1.913 albertel 10842: if ($file=~ m{^/userfiles/}) {
10843: $file =~ s{^/userfiles/}{/uploaded/};
10844: }
1.462 albertel 10845: return $file;
1.465 albertel 10846: }
10847:
1.1139 www 10848:
10849:
10850:
10851:
1.465 albertel 10852: sub current_machine_domains {
1.853 albertel 10853: return &machine_domains(&hostname($perlvar{'lonHostID'}));
10854: }
10855:
10856: sub machine_domains {
10857: my ($hostname) = @_;
1.465 albertel 10858: my @domains;
1.838 albertel 10859: my %hostname = &all_hostnames();
1.465 albertel 10860: while( my($id, $name) = each(%hostname)) {
1.467 matthew 10861: # &logthis("-$id-$name-$hostname-");
1.465 albertel 10862: if ($hostname eq $name) {
1.844 albertel 10863: push(@domains,&host_domain($id));
1.465 albertel 10864: }
10865: }
10866: return @domains;
10867: }
10868:
10869: sub current_machine_ids {
1.853 albertel 10870: return &machine_ids(&hostname($perlvar{'lonHostID'}));
10871: }
10872:
10873: sub machine_ids {
10874: my ($hostname) = @_;
10875: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 10876: my @ids;
1.888 albertel 10877: my %name_to_host = &all_names();
1.889 albertel 10878: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
10879: return @{ $name_to_host{$hostname} };
10880: }
10881: return;
1.31 www 10882: }
10883:
1.824 raeburn 10884: sub additional_machine_domains {
10885: my @domains;
10886: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
10887: while( my $line = <$fh>) {
10888: $line =~ s/\s//g;
10889: push(@domains,$line);
10890: }
10891: return @domains;
10892: }
10893:
10894: sub default_login_domain {
10895: my $domain = $perlvar{'lonDefDomain'};
10896: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
10897: foreach my $posdom (¤t_machine_domains(),
10898: &additional_machine_domains()) {
10899: if (lc($posdom) eq lc($testdomain)) {
10900: $domain=$posdom;
10901: last;
10902: }
10903: }
10904: return $domain;
10905: }
10906:
1.31 www 10907: # ------------------------------------------------------------- Declutters URLs
10908:
10909: sub declutter {
10910: my $thisfn=shift;
1.569 albertel 10911: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 10912: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 10913: $thisfn=~s/^\///;
1.697 albertel 10914: $thisfn=~s|^adm/wrapper/||;
10915: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 10916: $thisfn=~s/^res\///;
1.1172 bisitz 10917: $thisfn=~s/^priv\///;
1.1032 raeburn 10918: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
10919: $thisfn=~s/\?.+$//;
10920: }
1.268 www 10921: return $thisfn;
10922: }
10923:
10924: # ------------------------------------------------------------- Clutter up URLs
10925:
10926: sub clutter {
10927: my $thisfn='/'.&declutter(shift);
1.887 albertel 10928: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 10929: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 10930: $thisfn='/res'.$thisfn;
10931: }
1.1031 raeburn 10932: if ($thisfn !~m|^/adm|) {
10933: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 10934: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 10935: } else {
10936: my ($ext) = ($thisfn =~ /\.(\w+)$/);
10937: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 10938: if ($embstyle eq 'ssi'
10939: || ($embstyle eq 'hdn')
10940: || ($embstyle eq 'rat')
10941: || ($embstyle eq 'prv')
10942: || ($embstyle eq 'ign')) {
10943: #do nothing with these
10944: } elsif (($embstyle eq 'img')
1.695 albertel 10945: || ($embstyle eq 'emb')
10946: || ($embstyle eq 'wrp')) {
10947: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 10948: } elsif ($embstyle eq 'unk'
10949: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 10950: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 10951: } else {
1.718 www 10952: # &logthis("Got a blank emb style");
1.695 albertel 10953: }
1.694 albertel 10954: }
10955: }
1.31 www 10956: return $thisfn;
1.12 www 10957: }
10958:
1.787 albertel 10959: sub clutter_with_no_wrapper {
10960: my $uri = &clutter(shift);
10961: if ($uri =~ m-^/adm/-) {
10962: $uri =~ s-^/adm/wrapper/-/-;
10963: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
10964: }
10965: return $uri;
10966: }
10967:
1.557 albertel 10968: sub freeze_escape {
10969: my ($value)=@_;
10970: if (ref($value)) {
10971: $value=&nfreeze($value);
10972: return '__FROZEN__'.&escape($value);
10973: }
10974: return &escape($value);
10975: }
10976:
1.11 www 10977:
1.557 albertel 10978: sub thaw_unescape {
10979: my ($value)=@_;
10980: if ($value =~ /^__FROZEN__/) {
10981: substr($value,0,10,undef);
10982: $value=&unescape($value);
10983: return &thaw($value);
10984: }
10985: return &unescape($value);
10986: }
10987:
1.436 albertel 10988: sub correct_line_ends {
10989: my ($result)=@_;
10990: $$result =~s/\r\n/\n/mg;
10991: $$result =~s/\r/\n/mg;
1.415 albertel 10992: }
1.1 albertel 10993: # ================================================================ Main Program
10994:
1.184 www 10995: sub goodbye {
1.204 albertel 10996: &logthis("Starting Shut down");
1.443 albertel 10997: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 10998: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 10999: #converted
1.599 albertel 11000: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 11001: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
11002: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
11003: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 11004: #1.1 only
1.870 albertel 11005: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
11006: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
11007: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
11008: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
11009: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 11010: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
11011: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 11012: &flushcourselogs();
11013: &logthis("Shutting down");
11014: }
11015:
1.852 albertel 11016: sub get_dns {
1.869 albertel 11017: my ($url,$func,$ignore_cache) = @_;
11018: if (!$ignore_cache) {
11019: my ($content,$cached)=
11020: &Apache::lonnet::is_cached_new('dns',$url);
11021: if ($cached) {
11022: &$func($content);
11023: return;
11024: }
11025: }
11026:
11027: my %alldns;
1.852 albertel 11028: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11029: foreach my $dns (<$config>) {
11030: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 11031: my $line = $1;
11032: my ($host,$protocol) = split(/:/,$line);
11033: if ($protocol ne 'https') {
11034: $protocol = 'http';
11035: }
11036: $alldns{$host} = $protocol;
1.869 albertel 11037: }
11038: while (%alldns) {
11039: my ($dns) = keys(%alldns);
1.852 albertel 11040: my $ua=new LWP::UserAgent;
1.1134 raeburn 11041: $ua->timeout(30);
1.979 raeburn 11042: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 11043: my $response=$ua->request($request);
1.979 raeburn 11044: delete($alldns{$dns});
1.852 albertel 11045: next if ($response->is_error());
11046: my @content = split("\n",$response->content);
1.869 albertel 11047: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 11048: &$func(\@content);
1.869 albertel 11049: return;
1.852 albertel 11050: }
11051: close($config);
1.871 albertel 11052: my $which = (split('/',$url))[3];
11053: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
11054: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 11055: my @content = <$config>;
11056: &$func(\@content);
11057: return;
1.852 albertel 11058: }
1.327 albertel 11059: # ------------------------------------------------------------ Read domain file
11060: {
1.852 albertel 11061: my $loaded;
1.846 albertel 11062: my %domain;
11063:
1.852 albertel 11064: sub parse_domain_tab {
11065: my ($lines) = @_;
11066: foreach my $line (@$lines) {
11067: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 11068:
1.846 albertel 11069: chomp($line);
1.852 albertel 11070: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 11071: my %this_domain;
11072: foreach my $field ('description', 'auth_def', 'auth_arg_def',
11073: 'lang_def', 'city', 'longi', 'lati',
11074: 'primary') {
11075: $this_domain{$field} = shift(@elements);
11076: }
11077: $domain{$name} = \%this_domain;
1.852 albertel 11078: }
11079: }
1.864 albertel 11080:
11081: sub reset_domain_info {
11082: undef($loaded);
11083: undef(%domain);
11084: }
11085:
1.852 albertel 11086: sub load_domain_tab {
1.869 albertel 11087: my ($ignore_cache) = @_;
11088: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 11089: my $fh;
11090: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
11091: my @lines = <$fh>;
11092: &parse_domain_tab(\@lines);
1.448 albertel 11093: }
1.852 albertel 11094: close($fh);
11095: $loaded = 1;
1.327 albertel 11096: }
1.846 albertel 11097:
11098: sub domain {
1.852 albertel 11099: &load_domain_tab() if (!$loaded);
11100:
1.846 albertel 11101: my ($name,$what) = @_;
11102: return if ( !exists($domain{$name}) );
11103:
11104: if (!$what) {
11105: return $domain{$name}{'description'};
11106: }
11107: return $domain{$name}{$what};
11108: }
1.974 raeburn 11109:
11110: sub domain_info {
11111: &load_domain_tab() if (!$loaded);
11112: return %domain;
11113: }
11114:
1.327 albertel 11115: }
11116:
11117:
1.1 albertel 11118: # ------------------------------------------------------------- Read hosts file
11119: {
1.838 albertel 11120: my %hostname;
1.844 albertel 11121: my %hostdom;
1.845 albertel 11122: my %libserv;
1.852 albertel 11123: my $loaded;
1.888 albertel 11124: my %name_to_host;
1.1074 raeburn 11125: my %internetdom;
1.1107 raeburn 11126: my %LC_dns_serv;
1.852 albertel 11127:
11128: sub parse_hosts_tab {
11129: my ($file) = @_;
11130: foreach my $configline (@$file) {
11131: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 11132: chomp($configline);
11133: if ($configline =~ /^\^/) {
11134: if ($configline =~ /^\^([\w.\-]+)/) {
11135: $LC_dns_serv{$1} = 1;
11136: }
11137: next;
11138: }
1.1074 raeburn 11139: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 11140: $name=~s/\s//g;
11141: if ($id && $domain && $role && $name) {
11142: $hostname{$id}=$name;
1.888 albertel 11143: push(@{$name_to_host{$name}}, $id);
1.852 albertel 11144: $hostdom{$id}=$domain;
11145: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 11146: if (defined($protocol)) {
11147: if ($protocol eq 'https') {
11148: $protocol{$id} = $protocol;
11149: } else {
11150: $protocol{$id} = 'http';
11151: }
1.968 raeburn 11152: } else {
1.969 raeburn 11153: $protocol{$id} = 'http';
1.968 raeburn 11154: }
1.1074 raeburn 11155: if (defined($intdom)) {
11156: $internetdom{$id} = $intdom;
11157: }
1.852 albertel 11158: }
11159: }
11160: }
1.864 albertel 11161:
11162: sub reset_hosts_info {
1.897 albertel 11163: &purge_remembered();
1.864 albertel 11164: &reset_domain_info();
11165: &reset_hosts_ip_info();
1.892 albertel 11166: undef(%name_to_host);
1.864 albertel 11167: undef(%hostname);
11168: undef(%hostdom);
11169: undef(%libserv);
11170: undef($loaded);
11171: }
1.1 albertel 11172:
1.852 albertel 11173: sub load_hosts_tab {
1.869 albertel 11174: my ($ignore_cache) = @_;
11175: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 11176: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11177: my @config = <$config>;
11178: &parse_hosts_tab(\@config);
11179: close($config);
11180: $loaded=1;
1.1 albertel 11181: }
1.852 albertel 11182:
1.838 albertel 11183: sub hostname {
1.852 albertel 11184: &load_hosts_tab() if (!$loaded);
11185:
1.838 albertel 11186: my ($lonid) = @_;
11187: return $hostname{$lonid};
11188: }
1.845 albertel 11189:
1.838 albertel 11190: sub all_hostnames {
1.852 albertel 11191: &load_hosts_tab() if (!$loaded);
11192:
1.838 albertel 11193: return %hostname;
11194: }
1.845 albertel 11195:
1.888 albertel 11196: sub all_names {
11197: &load_hosts_tab() if (!$loaded);
11198:
11199: return %name_to_host;
11200: }
11201:
1.974 raeburn 11202: sub all_host_domain {
11203: &load_hosts_tab() if (!$loaded);
11204: return %hostdom;
11205: }
11206:
1.845 albertel 11207: sub is_library {
1.852 albertel 11208: &load_hosts_tab() if (!$loaded);
11209:
1.845 albertel 11210: return exists($libserv{$_[0]});
11211: }
11212:
11213: sub all_library {
1.852 albertel 11214: &load_hosts_tab() if (!$loaded);
11215:
1.845 albertel 11216: return %libserv;
11217: }
11218:
1.1062 droeschl 11219: sub unique_library {
11220: #2x reverse removes all hostnames that appear more than once
11221: my %unique = reverse &all_library();
11222: return reverse %unique;
11223: }
11224:
1.841 albertel 11225: sub get_servers {
1.852 albertel 11226: &load_hosts_tab() if (!$loaded);
11227:
1.841 albertel 11228: my ($domain,$type) = @_;
11229: my %possible_hosts = ($type eq 'library') ? %libserv
11230: : %hostname;
11231: my %result;
1.842 albertel 11232: if (ref($domain) eq 'ARRAY') {
11233: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 11234: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 11235: $result{$host} = $hostname;
11236: }
11237: }
11238: } else {
11239: while ( my ($host,$hostname) = each(%possible_hosts)) {
11240: if ($hostdom{$host} eq $domain) {
11241: $result{$host} = $hostname;
11242: }
1.841 albertel 11243: }
11244: }
11245: return %result;
11246: }
1.845 albertel 11247:
1.1062 droeschl 11248: sub get_unique_servers {
11249: my %unique = reverse &get_servers(@_);
11250: return reverse %unique;
11251: }
11252:
1.844 albertel 11253: sub host_domain {
1.852 albertel 11254: &load_hosts_tab() if (!$loaded);
11255:
1.844 albertel 11256: my ($lonid) = @_;
11257: return $hostdom{$lonid};
11258: }
11259:
1.841 albertel 11260: sub all_domains {
1.852 albertel 11261: &load_hosts_tab() if (!$loaded);
11262:
1.841 albertel 11263: my %seen;
11264: my @uniq = grep(!$seen{$_}++, values(%hostdom));
11265: return @uniq;
11266: }
1.1074 raeburn 11267:
11268: sub internet_dom {
11269: &load_hosts_tab() if (!$loaded);
11270:
11271: my ($lonid) = @_;
11272: return $internetdom{$lonid};
11273: }
1.1107 raeburn 11274:
11275: sub is_LC_dns {
11276: &load_hosts_tab() if (!$loaded);
11277:
11278: my ($hostname) = @_;
11279: return exists($LC_dns_serv{$hostname});
11280: }
11281:
1.1 albertel 11282: }
11283:
1.847 albertel 11284: {
11285: my %iphost;
1.856 albertel 11286: my %name_to_ip;
11287: my %lonid_to_ip;
1.869 albertel 11288:
1.847 albertel 11289: sub get_hosts_from_ip {
11290: my ($ip) = @_;
11291: my %iphosts = &get_iphost();
11292: if (ref($iphosts{$ip})) {
11293: return @{$iphosts{$ip}};
11294: }
11295: return;
1.839 albertel 11296: }
1.864 albertel 11297:
11298: sub reset_hosts_ip_info {
11299: undef(%iphost);
11300: undef(%name_to_ip);
11301: undef(%lonid_to_ip);
11302: }
1.856 albertel 11303:
11304: sub get_host_ip {
11305: my ($lonid) = @_;
11306: if (exists($lonid_to_ip{$lonid})) {
11307: return $lonid_to_ip{$lonid};
11308: }
11309: my $name=&hostname($lonid);
11310: my $ip = gethostbyname($name);
11311: return if (!$ip || length($ip) ne 4);
11312: $ip=inet_ntoa($ip);
11313: $name_to_ip{$name} = $ip;
11314: $lonid_to_ip{$lonid} = $ip;
11315: return $ip;
11316: }
1.847 albertel 11317:
11318: sub get_iphost {
1.869 albertel 11319: my ($ignore_cache) = @_;
1.894 albertel 11320:
1.869 albertel 11321: if (!$ignore_cache) {
11322: if (%iphost) {
11323: return %iphost;
11324: }
11325: my ($ip_info,$cached)=
11326: &Apache::lonnet::is_cached_new('iphost','iphost');
11327: if ($cached) {
11328: %iphost = %{$ip_info->[0]};
11329: %name_to_ip = %{$ip_info->[1]};
11330: %lonid_to_ip = %{$ip_info->[2]};
11331: return %iphost;
11332: }
11333: }
1.894 albertel 11334:
11335: # get yesterday's info for fallback
11336: my %old_name_to_ip;
11337: my ($ip_info,$cached)=
11338: &Apache::lonnet::is_cached_new('iphost','iphost');
11339: if ($cached) {
11340: %old_name_to_ip = %{$ip_info->[1]};
11341: }
11342:
1.888 albertel 11343: my %name_to_host = &all_names();
11344: foreach my $name (keys(%name_to_host)) {
1.847 albertel 11345: my $ip;
11346: if (!exists($name_to_ip{$name})) {
11347: $ip = gethostbyname($name);
11348: if (!$ip || length($ip) ne 4) {
1.894 albertel 11349: if (defined($old_name_to_ip{$name})) {
11350: $ip = $old_name_to_ip{$name};
11351: &logthis("Can't find $name defaulting to old $ip");
11352: } else {
11353: &logthis("Name $name no IP found");
11354: next;
11355: }
11356: } else {
11357: $ip=inet_ntoa($ip);
1.847 albertel 11358: }
11359: $name_to_ip{$name} = $ip;
11360: } else {
11361: $ip = $name_to_ip{$name};
1.653 albertel 11362: }
1.888 albertel 11363: foreach my $id (@{ $name_to_host{$name} }) {
11364: $lonid_to_ip{$id} = $ip;
11365: }
11366: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 11367: }
1.869 albertel 11368: &Apache::lonnet::do_cache_new('iphost','iphost',
11369: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 11370: 48*60*60);
1.869 albertel 11371:
1.847 albertel 11372: return %iphost;
1.598 albertel 11373: }
11374:
1.992 raeburn 11375: #
11376: # Given a DNS returns the loncapa host name for that DNS
11377: #
11378: sub host_from_dns {
11379: my ($dns) = @_;
11380: my @hosts;
11381: my $ip;
11382:
1.993 raeburn 11383: if (exists($name_to_ip{$dns})) {
1.992 raeburn 11384: $ip = $name_to_ip{$dns};
11385: }
11386: if (!$ip) {
11387: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
11388: if (length($ip) == 4) {
11389: $ip = &IO::Socket::inet_ntoa($ip);
11390: }
11391: }
11392: if ($ip) {
11393: @hosts = get_hosts_from_ip($ip);
11394: return $hosts[0];
11395: }
11396: return undef;
1.986 foxr 11397: }
1.992 raeburn 11398:
1.1074 raeburn 11399: sub get_internet_names {
11400: my ($lonid) = @_;
11401: return if ($lonid eq '');
11402: my ($idnref,$cached)=
11403: &Apache::lonnet::is_cached_new('internetnames',$lonid);
11404: if ($cached) {
11405: return $idnref;
11406: }
11407: my $ip = &get_host_ip($lonid);
11408: my @hosts = &get_hosts_from_ip($ip);
11409: my %iphost = &get_iphost();
11410: my (@idns,%seen);
11411: foreach my $id (@hosts) {
11412: my $dom = &host_domain($id);
11413: my $prim_id = &domain($dom,'primary');
11414: my $prim_ip = &get_host_ip($prim_id);
11415: next if ($seen{$prim_ip});
11416: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
11417: foreach my $id (@{$iphost{$prim_ip}}) {
11418: my $intdom = &internet_dom($id);
11419: unless (grep(/^\Q$intdom\E$/,@idns)) {
11420: push(@idns,$intdom);
11421: }
11422: }
11423: }
11424: $seen{$prim_ip} = 1;
11425: }
11426: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
11427: }
11428:
1.986 foxr 11429: }
11430:
1.1079 raeburn 11431: sub all_loncaparevs {
11432: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
11433: }
11434:
1.862 albertel 11435: BEGIN {
11436:
11437: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
11438: unless ($readit) {
11439: {
11440: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
11441: %perlvar = (%perlvar,%{$configvars});
11442: }
11443:
11444:
1.1 albertel 11445: # ------------------------------------------------------ Read spare server file
11446: {
1.448 albertel 11447: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 11448:
11449: while (my $configline=<$config>) {
11450: chomp($configline);
1.284 matthew 11451: if ($configline) {
1.784 albertel 11452: my ($host,$type) = split(':',$configline,2);
1.785 albertel 11453: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 11454: push(@{ $spareid{$type} }, $host);
1.1 albertel 11455: }
11456: }
1.448 albertel 11457: close($config);
1.1 albertel 11458: }
1.11 www 11459: # ------------------------------------------------------------ Read permissions
11460: {
1.448 albertel 11461: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 11462:
11463: while (my $configline=<$config>) {
1.448 albertel 11464: chomp($configline);
11465: if ($configline) {
11466: my ($role,$perm)=split(/ /,$configline);
11467: if ($perm ne '') { $pr{$role}=$perm; }
11468: }
1.11 www 11469: }
1.448 albertel 11470: close($config);
1.11 www 11471: }
11472:
11473: # -------------------------------------------- Read plain texts for permissions
11474: {
1.448 albertel 11475: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 11476:
11477: while (my $configline=<$config>) {
1.448 albertel 11478: chomp($configline);
11479: if ($configline) {
1.742 raeburn 11480: my ($short,@plain)=split(/:/,$configline);
11481: %{$prp{$short}} = ();
11482: if (@plain > 0) {
11483: $prp{$short}{'std'} = $plain[0];
11484: for (my $i=1; $i<@plain; $i++) {
11485: $prp{$short}{'alt'.$i} = $plain[$i];
11486: }
11487: }
1.448 albertel 11488: }
1.135 www 11489: }
1.448 albertel 11490: close($config);
1.135 www 11491: }
11492:
11493: # ---------------------------------------------------------- Read package table
11494: {
1.448 albertel 11495: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 11496:
11497: while (my $configline=<$config>) {
1.483 albertel 11498: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 11499: chomp($configline);
11500: my ($short,$plain)=split(/:/,$configline);
11501: my ($pack,$name)=split(/\&/,$short);
11502: if ($plain ne '') {
11503: $packagetab{$pack.'&'.$name.'&name'}=$name;
11504: $packagetab{$short}=$plain;
11505: }
1.11 www 11506: }
1.448 albertel 11507: close($config);
1.329 matthew 11508: }
11509:
1.1073 raeburn 11510: # ---------------------------------------------------------- Read loncaparev table
11511: {
11512: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
11513: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
11514: while (my $configline=<$config>) {
11515: chomp($configline);
11516: my ($hostid,$loncaparev)=split(/:/,$configline);
11517: $loncaparevs{$hostid}=$loncaparev;
11518: }
11519: close($config);
11520: }
11521: }
11522: }
11523:
1.1074 raeburn 11524: # ---------------------------------------------------------- Read serverhostID table
11525: {
11526: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
11527: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
11528: while (my $configline=<$config>) {
11529: chomp($configline);
11530: my ($name,$id)=split(/:/,$configline);
11531: $serverhomeIDs{$name}=$id;
11532: }
11533: close($config);
11534: }
11535: }
11536: }
11537:
1.1079 raeburn 11538: {
11539: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
11540: if (-e $file) {
11541: my $parser = HTML::LCParser->new($file);
11542: while (my $token = $parser->get_token()) {
11543: if ($token->[0] eq 'S') {
11544: my $item = $token->[1];
11545: my $name = $token->[2]{'name'};
11546: my $value = $token->[2]{'value'};
11547: if ($item ne '' && $name ne '' && $value ne '') {
11548: my $release = $parser->get_text();
11549: $release =~ s/(^\s*|\s*$ )//gx;
11550: $needsrelease{$item.':'.$name.':'.$value} = $release;
11551: }
11552: }
11553: }
11554: }
1.1073 raeburn 11555: }
11556:
1.1138 raeburn 11557: # ---------------------------------------------------------- Read managers table
11558: {
11559: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
11560: if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
11561: while (my $configline=<$config>) {
11562: chomp($configline);
11563: next if ($configline =~ /^\#/);
11564: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
11565: $managerstab{$configline} = 1;
11566: }
11567: }
11568: close($config);
11569: }
11570: }
11571: }
11572:
1.329 matthew 11573: # ------------- set up temporary directory
11574: {
1.1117 foxr 11575: $tmpdir = LONCAPA::tempdir();
1.329 matthew 11576:
1.11 www 11577: }
11578:
1.794 albertel 11579: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
11580: 'compress_threshold'=> 20_000,
11581: });
1.185 www 11582:
1.281 www 11583: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 11584: $dumpcount=0;
1.958 www 11585: $locknum=0;
1.22 www 11586:
1.163 harris41 11587: &logtouch();
1.672 albertel 11588: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 11589: $readit=1;
1.564 albertel 11590: {
11591: use integer;
11592: my $test=(2**32)+1;
1.568 albertel 11593: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 11594: &logthis(" Detected 64bit platform ($_64bit)");
11595: }
1.195 www 11596: }
1.1 albertel 11597: }
1.179 www 11598:
1.1 albertel 11599: 1;
1.191 harris41 11600: __END__
11601:
1.243 albertel 11602: =pod
11603:
1.191 harris41 11604: =head1 NAME
11605:
1.243 albertel 11606: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 11607:
11608: =head1 SYNOPSIS
11609:
1.243 albertel 11610: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 11611:
11612: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
11613:
1.243 albertel 11614: Common parameters:
11615:
11616: =over 4
11617:
11618: =item *
11619:
11620: $uname : an internal username (if $cname expecting a course Id specifically)
11621:
11622: =item *
11623:
11624: $udom : a domain (if $cdom expecting a course's domain specifically)
11625:
11626: =item *
11627:
11628: $symb : a resource instance identifier
11629:
11630: =item *
11631:
11632: $namespace : the name of a .db file that contains the data needed or
11633: being set.
11634:
11635: =back
11636:
1.394 bowersj2 11637: =head1 OVERVIEW
1.191 harris41 11638:
1.394 bowersj2 11639: lonnet provides subroutines which interact with the
11640: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
11641: about classes, users, and resources.
1.243 albertel 11642:
11643: For many of these objects you can also use this to store data about
11644: them or modify them in various ways.
1.191 harris41 11645:
1.394 bowersj2 11646: =head2 Symbs
1.191 harris41 11647:
1.394 bowersj2 11648: To identify a specific instance of a resource, LON-CAPA uses symbols
11649: or "symbs"X<symb>. These identifiers are built from the URL of the
11650: map, the resource number of the resource in the map, and the URL of
11651: the resource itself. The latter is somewhat redundant, but might help
11652: if maps change.
11653:
11654: An example is
11655:
11656: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
11657:
11658: The respective map entry is
11659:
11660: <resource id="19" src="/res/msu/korte/tests/part12.problem"
11661: title="Problem 2">
11662: </resource>
11663:
11664: Symbs are used by the random number generator, as well as to store and
11665: restore data specific to a certain instance of for example a problem.
11666:
11667: =head2 Storing And Retrieving Data
11668:
11669: X<store()>X<cstore()>X<restore()>Three of the most important functions
11670: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
11671: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
11672: is is the non-critical message twin of cstore. These functions are for
11673: handlers to store a perl hash to a user's permanent data space in an
11674: easy manner, and to retrieve it again on another call. It is expected
11675: that a handler would use this once at the beginning to retrieve data,
11676: and then again once at the end to send only the new data back.
11677:
11678: The data is stored in the user's data directory on the user's
11679: homeserver under the ID of the course.
11680:
11681: The hash that is returned by restore will have all of the previous
11682: value for all of the elements of the hash.
11683:
11684: Example:
11685:
11686: #creating a hash
11687: my %hash;
11688: $hash{'foo'}='bar';
11689:
11690: #storing it
11691: &Apache::lonnet::cstore(\%hash);
11692:
11693: #changing a value
11694: $hash{'foo'}='notbar';
11695:
11696: #adding a new value
11697: $hash{'bar'}='foo';
11698: &Apache::lonnet::cstore(\%hash);
11699:
11700: #retrieving the hash
11701: my %history=&Apache::lonnet::restore();
11702:
11703: #print the hash
11704: foreach my $key (sort(keys(%history))) {
11705: print("\%history{$key} = $history{$key}");
11706: }
11707:
11708: Will print out:
1.191 harris41 11709:
1.394 bowersj2 11710: %history{1:foo} = bar
11711: %history{1:keys} = foo:timestamp
11712: %history{1:timestamp} = 990455579
11713: %history{2:bar} = foo
11714: %history{2:foo} = notbar
11715: %history{2:keys} = foo:bar:timestamp
11716: %history{2:timestamp} = 990455580
11717: %history{bar} = foo
11718: %history{foo} = notbar
11719: %history{timestamp} = 990455580
11720: %history{version} = 2
11721:
11722: Note that the special hash entries C<keys>, C<version> and
11723: C<timestamp> were added to the hash. C<version> will be equal to the
11724: total number of versions of the data that have been stored. The
11725: C<timestamp> attribute will be the UNIX time the hash was
11726: stored. C<keys> is available in every historical section to list which
11727: keys were added or changed at a specific historical revision of a
11728: hash.
11729:
11730: B<Warning>: do not store the hash that restore returns directly. This
11731: will cause a mess since it will restore the historical keys as if the
11732: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 11733:
1.394 bowersj2 11734: Calling convention:
1.191 harris41 11735:
1.394 bowersj2 11736: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
11737: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 11738:
1.394 bowersj2 11739: For more detailed information, see lonnet specific documentation.
1.191 harris41 11740:
1.394 bowersj2 11741: =head1 RETURN MESSAGES
1.191 harris41 11742:
1.394 bowersj2 11743: =over 4
1.191 harris41 11744:
1.394 bowersj2 11745: =item * B<con_lost>: unable to contact remote host
1.191 harris41 11746:
1.394 bowersj2 11747: =item * B<con_delayed>: unable to contact remote host, message will be delivered
11748: when the connection is brought back up
1.191 harris41 11749:
1.394 bowersj2 11750: =item * B<con_failed>: unable to contact remote host and unable to save message
11751: for later delivery
1.191 harris41 11752:
1.967 bisitz 11753: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 11754:
1.394 bowersj2 11755: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 11756: that was requested
1.191 harris41 11757:
1.243 albertel 11758: =back
1.191 harris41 11759:
1.243 albertel 11760: =head1 PUBLIC SUBROUTINES
1.191 harris41 11761:
1.243 albertel 11762: =head2 Session Environment Functions
1.191 harris41 11763:
1.243 albertel 11764: =over 4
1.191 harris41 11765:
1.394 bowersj2 11766: =item *
11767: X<appenv()>
1.949 raeburn 11768: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 11769: the user envirnoment file, and will be restored for each access this
1.620 albertel 11770: user makes during this session, also modifies the %env for the current
1.949 raeburn 11771: process. Optional rolesarrayref - if defined contains a reference to an array
11772: of roles which are exempt from the restriction on modifying user.role entries
11773: in the user's environment.db and in %env.
1.191 harris41 11774:
11775: =item *
1.394 bowersj2 11776: X<delenv()>
1.987 raeburn 11777: B<delenv($delthis,$regexp)>: removes all items from the session
11778: environment file that begin with $delthis. If the
11779: optional second arg - $regexp - is true, $delthis is treated as a
11780: regular expression, otherwise \Q$delthis\E is used.
11781: The values are also deleted from the current processes %env.
1.191 harris41 11782:
1.795 albertel 11783: =item * get_env_multiple($name)
11784:
11785: gets $name from the %env hash, it seemlessly handles the cases where multiple
11786: values may be defined and end up as an array ref.
11787:
11788: returns an array of values
11789:
1.243 albertel 11790: =back
11791:
11792: =head2 User Information
1.191 harris41 11793:
1.243 albertel 11794: =over 4
1.191 harris41 11795:
11796: =item *
1.394 bowersj2 11797: X<queryauthenticate()>
11798: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 11799: authentication scheme
11800:
11801: =item *
1.394 bowersj2 11802: X<authenticate()>
1.1073 raeburn 11803: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 11804: authenticate user from domain's lib servers (first use the current
11805: one). C<$upass> should be the users password.
1.1073 raeburn 11806: $checkdefauth is optional (value is 1 if a check should be made to
11807: authenticate user using default authentication method, and allow
11808: account creation if username does not have account in the domain).
11809: $clientcancheckhost is optional (value is 1 if checking whether the
11810: server can host will occur on the client side in lonauth.pm).
1.191 harris41 11811:
11812: =item *
1.394 bowersj2 11813: X<homeserver()>
11814: B<homeserver($uname,$udom)>: find the server which has
11815: the user's directory and files (there must be only one), this caches
11816: the answer, and also caches if there is a borken connection.
1.191 harris41 11817:
11818: =item *
1.394 bowersj2 11819: X<idget()>
11820: B<idget($udom,@ids)>: find the usernames behind a list of IDs
11821: (IDs are a unique resource in a domain, there must be only 1 ID per
11822: username, and only 1 username per ID in a specific domain) (returns
11823: hash: id=>name,id=>name)
1.191 harris41 11824:
11825: =item *
1.394 bowersj2 11826: X<idrget()>
11827: B<idrget($udom,@unames)>: find the IDs behind a list of
11828: usernames (returns hash: name=>id,name=>id)
1.191 harris41 11829:
11830: =item *
1.394 bowersj2 11831: X<idput()>
11832: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 11833:
11834: =item *
1.394 bowersj2 11835: X<rolesinit()>
1.1169 droeschl 11836: B<rolesinit($udom,$username)>: get user privileges.
11837: returns user role, first access and timer interval hashes
1.243 albertel 11838:
11839: =item *
1.1171 droeschl 11840: X<privileged()>
11841: B<privileged($username,$domain)>: returns a true if user has a
11842: privileged and active role (i.e. su or dc), false otherwise.
11843:
11844: =item *
1.551 albertel 11845: X<getsection()>
11846: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 11847: course $cname, return section name/number or '' for "not in course"
11848: and '-1' for "no section"
11849:
11850: =item *
1.394 bowersj2 11851: X<userenvironment()>
11852: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 11853: passed in @what from the requested user's environment, returns a hash
11854:
1.858 raeburn 11855: =item *
11856: X<userlog_query()>
1.859 albertel 11857: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
11858: activity.log file. %filters defines filters applied when parsing the
11859: log file. These can be start or end timestamps, or the type of action
11860: - log to look for Login or Logout events, check for Checkin or
11861: Checkout, role for role selection. The response is in the form
11862: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
11863: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 11864:
1.243 albertel 11865: =back
11866:
11867: =head2 User Roles
11868:
11869: =over 4
11870:
11871: =item *
11872:
1.810 raeburn 11873: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 11874: F: full access
11875: U,I,K: authentication modes (cxx only)
11876: '': forbidden
11877: 1: user needs to choose course
11878: 2: browse allowed
1.766 albertel 11879: A: passphrase authentication needed
1.243 albertel 11880:
11881: =item *
11882:
11883: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
11884: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
11885: and course level
11886:
11887: =item *
11888:
1.988 raeburn 11889: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
11890: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 11891: $type is Course (default) or Community.
1.988 raeburn 11892: If $forcedefault evaluates to true, text returned will be default
11893: text for $type. Otherwise, if this is a course, the text returned
11894: will be a custom name for the role (if defined in the course's
11895: environment). If no custom name is defined the default is returned.
11896:
1.832 raeburn 11897: =item *
11898:
1.935 raeburn 11899: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 11900: All arguments are optional. Returns a hash of a roles, either for
11901: co-author/assistant author roles for a user's Construction Space
1.906 albertel 11902: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 11903: In the hash, keys are set to colon-separated $uname,$udom,$role, and
11904: (optionally) if $withsec is true, a fourth colon-separated item - $section.
11905: For each key, value is set to colon-separated start and end times for
11906: the role. If no username and domain are specified, will default to
1.934 raeburn 11907: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 11908: of role statuses (active, future or previous), roles
11909: (e.g., cc,in, st etc.) and domains of the roles which can be used
11910: to restrict the list of roles reported. If no array ref is
11911: provided for types, will default to return only active roles.
1.834 albertel 11912:
1.243 albertel 11913: =back
11914:
11915: =head2 User Modification
11916:
11917: =over 4
11918:
11919: =item *
11920:
1.957 raeburn 11921: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 11922: user for the level given by URL. Optional start and end dates (leave empty
11923: string or zero for "no date")
1.191 harris41 11924:
11925: =item *
11926:
1.243 albertel 11927: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
11928: change a users, password, possible return values are: ok,
11929: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
11930: refused
1.191 harris41 11931:
11932: =item *
11933:
1.243 albertel 11934: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 11935:
11936: =item *
11937:
1.1058 raeburn 11938: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
11939: $forceid,$desiredhome,$email,$inststatus,$candelete) :
11940:
11941: will update user information (firstname,middlename,lastname,generation,
11942: permanentemail), and if forceid is true, student/employee ID also.
11943: A user's institutional affiliation(s) can also be updated.
11944: User information fields will not be overwritten with empty entries
11945: unless the field is included in the $candelete array reference.
11946: This array is included when a single user is modified via "Manage Users",
11947: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 11948:
11949: =item *
11950:
1.286 matthew 11951: modifystudent
11952:
1.957 raeburn 11953: modify a student's enrollment and identification information.
1.286 matthew 11954: The course id is resolved based on the current users environment.
11955: This means the envoking user must be a course coordinator or otherwise
11956: associated with a course.
11957:
1.297 matthew 11958: This call is essentially a wrapper for lonnet::modifyuser and
11959: lonnet::modify_student_enrollment
1.286 matthew 11960:
11961: Inputs:
11962:
11963: =over 4
11964:
1.957 raeburn 11965: =item B<$udom> Student's loncapa domain
1.286 matthew 11966:
1.957 raeburn 11967: =item B<$uname> Student's loncapa login name
1.286 matthew 11968:
1.964 bisitz 11969: =item B<$uid> Student/Employee ID
1.286 matthew 11970:
1.957 raeburn 11971: =item B<$umode> Student's authentication mode
1.286 matthew 11972:
1.957 raeburn 11973: =item B<$upass> Student's password
1.286 matthew 11974:
1.957 raeburn 11975: =item B<$first> Student's first name
1.286 matthew 11976:
1.957 raeburn 11977: =item B<$middle> Student's middle name
1.286 matthew 11978:
1.957 raeburn 11979: =item B<$last> Student's last name
1.286 matthew 11980:
1.957 raeburn 11981: =item B<$gene> Student's generation
1.286 matthew 11982:
1.957 raeburn 11983: =item B<$usec> Student's section in course
1.286 matthew 11984:
11985: =item B<$end> Unix time of the roles expiration
11986:
11987: =item B<$start> Unix time of the roles start date
11988:
11989: =item B<$forceid> If defined, allow $uid to be changed
11990:
11991: =item B<$desiredhome> server to use as home server for student
11992:
1.957 raeburn 11993: =item B<$email> Student's permanent e-mail address
11994:
11995: =item B<$type> Type of enrollment (auto or manual)
11996:
1.963 raeburn 11997: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
11998:
11999: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 12000:
1.963 raeburn 12001: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 12002:
1.963 raeburn 12003: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 12004:
1.963 raeburn 12005: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 12006:
1.286 matthew 12007: =back
1.297 matthew 12008:
12009: =item *
12010:
12011: modify_student_enrollment
12012:
12013: Change a students enrollment status in a class. The environment variable
12014: 'role.request.course' must be defined for this function to proceed.
12015:
12016: Inputs:
12017:
12018: =over 4
12019:
12020: =item $udom, students domain
12021:
12022: =item $uname, students name
12023:
12024: =item $uid, students user id
12025:
12026: =item $first, students first name
12027:
12028: =item $middle
12029:
12030: =item $last
12031:
12032: =item $gene
12033:
12034: =item $usec
12035:
12036: =item $end
12037:
12038: =item $start
12039:
1.957 raeburn 12040: =item $type
12041:
12042: =item $locktype
12043:
12044: =item $cid
12045:
12046: =item $selfenroll
12047:
12048: =item $context
12049:
1.297 matthew 12050: =back
12051:
1.191 harris41 12052:
12053: =item *
12054:
1.243 albertel 12055: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
12056: custom role; give a custom role to a user for the level given by URL. Specify
12057: name and domain of role author, and role name
1.191 harris41 12058:
12059: =item *
12060:
1.243 albertel 12061: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 12062:
12063: =item *
12064:
1.243 albertel 12065: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
12066:
12067: =back
12068:
12069: =head2 Course Infomation
12070:
12071: =over 4
1.191 harris41 12072:
12073: =item *
12074:
1.1118 foxr 12075: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 12076: specified course id, including all environment settings for the
12077: course, the description of the course will be in the hash under the
12078: key 'description'
1.191 harris41 12079:
1.1118 foxr 12080: $options is an optional parameter that if supplied is a hash reference that controls
12081: what how this function works. It has the following key/values:
12082:
12083: =over 4
12084:
12085: =item freshen_cache
12086:
12087: If defined, and the environment cache for the course is valid, it is
12088: returned in the returned hash.
12089:
12090: =item one_time
12091:
12092: If defined, the last cache time is set to _now_
12093:
12094: =item user
12095:
12096: If defined, the supplied username is used instead of the current user.
12097:
12098:
12099: =back
12100:
1.191 harris41 12101: =item *
12102:
1.624 albertel 12103: resdata($name,$domain,$type,@which) : request for current parameter
12104: setting for a specific $type, where $type is either 'course' or 'user',
12105: @what should be a list of parameters to ask about. This routine caches
12106: answers for 5 minutes.
1.243 albertel 12107:
1.877 foxr 12108: =item *
12109:
12110: get_courseresdata($courseid, $domain) : dump the entire course resource
12111: data base, returning a hash that is keyed by the resource name and has
12112: values that are the resource value. I believe that the timestamps and
12113: versions are also returned.
12114:
12115:
1.243 albertel 12116: =back
12117:
12118: =head2 Course Modification
12119:
12120: =over 4
1.191 harris41 12121:
12122: =item *
12123:
1.243 albertel 12124: writecoursepref($courseid,%prefs) : write preferences (environment
12125: database) for a course
1.191 harris41 12126:
12127: =item *
12128:
1.1011 raeburn 12129: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
12130:
12131: =item *
12132:
1.1038 raeburn 12133: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 12134:
1.1167 droeschl 12135: =item *
12136:
12137: is_course($courseid), is_course($cdom, $cnum)
12138:
12139: Accepts either a combined $courseid (in the form of domain_courseid) or the
12140: two component version $cdom, $cnum. It checks if the specified course exists.
12141:
12142: Returns:
12143: undef if the course doesn't exist, otherwise
12144: in scalar context the combined courseid.
12145: in list context the two components of the course identifier, domain and
12146: courseid.
12147:
1.243 albertel 12148: =back
12149:
12150: =head2 Resource Subroutines
12151:
12152: =over 4
1.191 harris41 12153:
12154: =item *
12155:
1.243 albertel 12156: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 12157:
12158: =item *
12159:
1.243 albertel 12160: repcopy($filename) : subscribes to the requested file, and attempts to
12161: replicate from the owning library server, Might return
1.607 raeburn 12162: 'unavailable', 'not_found', 'forbidden', 'ok', or
12163: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 12164: resource. Expects the local filesystem pathname
12165: (/home/httpd/html/res/....)
12166:
12167: =back
12168:
12169: =head2 Resource Information
12170:
12171: =over 4
1.191 harris41 12172:
12173: =item *
12174:
1.243 albertel 12175: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
12176: a vairety of different possible values, $varname should be a request
12177: string, and the other parameters can be used to specify who and what
12178: one is asking about.
12179:
12180: Possible values for $varname are environment.lastname (or other item
12181: from the envirnment hash), user.name (or someother aspect about the
12182: user), resource.0.maxtries (or some other part and parameter of a
12183: resource)
1.204 albertel 12184:
12185: =item *
12186:
1.243 albertel 12187: directcondval($number) : get current value of a condition; reads from a state
12188: string
1.204 albertel 12189:
12190: =item *
12191:
1.243 albertel 12192: condval($condidx) : value of condition index based on state
1.204 albertel 12193:
12194: =item *
12195:
1.243 albertel 12196: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
12197: resource's metadata, $what should be either a specific key, or either
12198: 'keys' (to get a list of possible keys) or 'packages' to get a list of
12199: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
12200:
12201: this function automatically caches all requests
1.191 harris41 12202:
12203: =item *
12204:
1.243 albertel 12205: metadata_query($query,$custom,$customshow) : make a metadata query against the
12206: network of library servers; returns file handle of where SQL and regex results
12207: will be stored for query
1.191 harris41 12208:
12209: =item *
12210:
1.243 albertel 12211: symbread($filename) : return symbolic list entry (filename argument optional);
12212: returns the data handle
1.191 harris41 12213:
12214: =item *
12215:
1.243 albertel 12216: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 12217: a possible symb for the URL in $thisfn, and if is an encryypted
12218: resource that the user accessed using /enc/ returns a 1 on success, 0
12219: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 12220: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 12221:
1.191 harris41 12222:
12223: =item *
12224:
1.243 albertel 12225: symbclean($symb) : removes versions numbers from a symb, returns the
12226: cleaned symb
1.191 harris41 12227:
12228: =item *
12229:
1.243 albertel 12230: is_on_map($uri) : checks if the $uri is somewhere on the current
12231: course map, user must be in a course for it to work.
1.191 harris41 12232:
12233: =item *
12234:
1.243 albertel 12235: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 12236:
12237: =item *
12238:
1.243 albertel 12239: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
12240: a random seed, all arguments are optional, if they aren't sent it uses the
12241: environment to derive them. Note: if symb isn't sent and it can't get one
12242: from &symbread it will use the current time as its return value
1.191 harris41 12243:
12244: =item *
12245:
1.243 albertel 12246: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
12247: unfakeable, receipt
1.191 harris41 12248:
12249: =item *
12250:
1.620 albertel 12251: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 12252:
12253: =item *
12254:
1.243 albertel 12255: countacc($url) : count the number of accesses to a given URL
1.191 harris41 12256:
12257: =item *
12258:
1.243 albertel 12259: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 12260:
12261: =item *
12262:
1.243 albertel 12263: checkin($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 $tcrsid)
1.191 harris41 12264:
12265: =item *
12266:
1.243 albertel 12267: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 12268:
12269: =item *
12270:
1.243 albertel 12271: devalidate($symb) : devalidate temporary spreadsheet calculations,
12272: forcing spreadsheet to reevaluate the resource scores next time.
12273:
12274: =back
12275:
12276: =head2 Storing/Retreiving Data
12277:
12278: =over 4
1.191 harris41 12279:
12280: =item *
12281:
1.243 albertel 12282: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
12283: for this url; hashref needs to be given and should be a \%hashname; the
12284: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 12285: be derived from the env
1.191 harris41 12286:
12287: =item *
12288:
1.243 albertel 12289: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
12290: uses critical subroutine
1.191 harris41 12291:
12292: =item *
12293:
1.243 albertel 12294: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
12295: all args are optional
1.191 harris41 12296:
12297: =item *
12298:
1.717 albertel 12299: dumpstore($namespace,$udom,$uname,$regexp,$range) :
12300: dumps the complete (or key matching regexp) namespace into a hash
12301: ($udom, $uname, $regexp, $range are optional) for a namespace that is
12302: normally &store()ed into
12303:
12304: $range should be either an integer '100' (give me the first 100
12305: matching records)
12306: or be two integers sperated by a - with no spaces
12307: '30-50' (give me the 30th through the 50th matching
12308: records)
12309:
12310:
12311: =item *
12312:
12313: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
12314: replaces a &store() version of data with a replacement set of data
12315: for a particular resource in a namespace passed in the $storehash hash
12316: reference
12317:
12318: =item *
12319:
1.243 albertel 12320: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
12321: works very similar to store/cstore, but all data is stored in a
12322: temporary location and can be reset using tmpreset, $storehash should
12323: be a hash reference, returns nothing on success
1.191 harris41 12324:
12325: =item *
12326:
1.243 albertel 12327: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
12328: similar to restore, but all data is stored in a temporary location and
12329: can be reset using tmpreset. Returns a hash of values on success,
12330: error string otherwise.
1.191 harris41 12331:
12332: =item *
12333:
1.243 albertel 12334: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
12335: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 12336:
12337: =item *
12338:
1.243 albertel 12339: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12340: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 12341:
12342: =item *
12343:
1.243 albertel 12344: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
12345: namesp ($udom and $uname are optional)
1.191 harris41 12346:
12347: =item *
12348:
1.702 albertel 12349: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 12350: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 12351: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 12352:
1.702 albertel 12353: $range should be either an integer '100' (give me the first 100
12354: matching records)
12355: or be two integers sperated by a - with no spaces
12356: '30-50' (give me the 30th through the 50th matching
12357: records)
1.449 matthew 12358: =item *
12359:
12360: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
12361: $store can be a scalar, an array reference, or if the amount to be
12362: incremented is > 1, a hash reference.
12363:
12364: ($udom and $uname are optional)
1.191 harris41 12365:
12366: =item *
12367:
1.243 albertel 12368: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
12369: ($udom and $uname are optional)
1.191 harris41 12370:
12371: =item *
12372:
1.243 albertel 12373: cput($namespace,$storehash,$udom,$uname) : critical put
12374: ($udom and $uname are optional)
1.191 harris41 12375:
12376: =item *
12377:
1.748 albertel 12378: newput($namespace,$storehash,$udom,$uname) :
12379:
12380: Attempts to store the items in the $storehash, but only if they don't
12381: currently exist, if this succeeds you can be certain that you have
12382: successfully created a new key value pair in the $namespace db.
12383:
12384:
12385: Args:
12386: $namespace: name of database to store values to
12387: $storehash: hashref to store to the db
12388: $udom: (optional) domain of user containing the db
12389: $uname: (optional) name of user caontaining the db
12390:
12391: Returns:
12392: 'ok' -> succeeded in storing all keys of $storehash
12393: 'key_exists: <key>' -> failed to anything out of $storehash, as at
12394: least <key> already existed in the db (other
12395: requested keys may also already exist)
1.967 bisitz 12396: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 12397: 'con_lost' -> unable to contact request server
12398: 'refused' -> action was not allowed by remote machine
12399:
12400:
12401: =item *
12402:
1.243 albertel 12403: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12404: reference filled in from namesp (encrypts the return communication)
12405: ($udom and $uname are optional)
1.191 harris41 12406:
12407: =item *
12408:
1.243 albertel 12409: log($udom,$name,$home,$message) : write to permanent log for user; use
12410: critical subroutine
12411:
1.806 raeburn 12412: =item *
12413:
1.860 raeburn 12414: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
12415: array reference filled in from namespace found in domain level on either
12416: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 12417:
12418: =item *
12419:
1.860 raeburn 12420: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
12421: domain level either on specified domain server ($uhome) or primary domain
12422: server ($udom and $uhome are optional)
1.806 raeburn 12423:
1.943 raeburn 12424: =item *
12425:
12426: get_domain_defaults($target_domain) : returns hash with defaults for
12427: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
12428: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
12429: or localauth), initial password or a kerberos realm, language (e.g., en-us).
12430: Values are retrieved from cache (if current), or from domain's configuration.db
12431: (if available), or lastly from values in lonTabs/dns_domain,tab,
12432: or lonTabs/domain.tab.
12433:
12434: %domdefaults = &get_auth_defaults($target_domain);
12435:
1.243 albertel 12436: =back
12437:
12438: =head2 Network Status Functions
12439:
12440: =over 4
1.191 harris41 12441:
12442: =item *
12443:
1.1137 raeburn 12444: dirlist() : return directory list based on URI (first arg).
12445:
12446: Inputs: 1 required, 5 optional.
12447:
12448: =over
12449:
12450: =item
12451: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
12452:
12453: =item
12454: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
12455:
12456: =item
12457: $username - username of user/course to be listed. Extracted from $uri if absent.
12458:
12459: =item
12460: $getpropath - boolean: 1 if prepend path using &propath().
12461:
12462: =item
12463: $getuserdir - boolean: 1 if prepend path for "userfiles".
12464:
12465: =item
12466: $alternateRoot - path to prepend in place of path from $uri.
12467:
12468: =back
12469:
12470: Returns: Array of up to two items.
12471:
12472: =over
12473:
12474: a reference to an array of files/subdirectories
12475:
12476: =over
12477:
12478: Each element in the array of files/subdirectories is a & separated list of
12479: item name and the result of running stat on the item. If dirlist was requested
12480: for a file instead of a directory, the item name will be ''. For a directory
12481: listing, if the item is a metadata file, the element will end &N&M
12482: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
12483: default copyright set (1).
12484:
12485: =back
12486:
12487: a scalar containing error condition (if encountered).
12488:
12489: =over
12490:
12491: =item
12492: no_host (no homeserver identified for $username:$domain).
12493:
12494: =item
12495: no_such_host (server contacted for listing not identified as valid host).
12496:
12497: =item
12498: con_lost (connection to remote server failed).
12499:
12500: =item
12501: refused (invalid $username:$domain received on lond side).
12502:
12503: =item
12504: no_such_dir (directory at specified path on lond side does not exist).
12505:
12506: =item
12507: empty (directory at specified path on lond side is empty).
12508:
12509: =over
12510:
12511: This is currently not encountered because the &ls3, &ls2,
12512: &ls (_handler) routines on the lond side do not filter out
12513: . and .. from a directory listing.
12514:
12515: =back
12516:
12517: =back
12518:
12519: =back
1.191 harris41 12520:
12521: =item *
12522:
1.243 albertel 12523: spareserver() : find server with least workload from spare.tab
12524:
1.986 foxr 12525:
12526: =item *
12527:
12528: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
12529: if there is no corresponding loncapa host.
12530:
1.243 albertel 12531: =back
12532:
1.986 foxr 12533:
1.243 albertel 12534: =head2 Apache Request
12535:
12536: =over 4
1.191 harris41 12537:
12538: =item *
12539:
1.243 albertel 12540: ssi($url,%hash) : server side include, does a complete request cycle on url to
12541: localhost, posts hash
12542:
12543: =back
12544:
12545: =head2 Data to String to Data
12546:
12547: =over 4
1.191 harris41 12548:
12549: =item *
12550:
1.243 albertel 12551: hash2str(%hash) : convert a hash into a string complete with escaping and '='
12552: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 12553:
12554: =item *
12555:
1.243 albertel 12556: hashref2str($hashref) : convert a hashref into a string complete with
12557: escaping and '=' and '&' separators, supports elements that are
12558: arrayrefs and hashrefs
1.191 harris41 12559:
12560: =item *
12561:
1.243 albertel 12562: arrayref2str($arrayref) : convert an arrayref into a string complete
12563: with escaping and '&' separators, supports elements that are arrayrefs
12564: and hashrefs
1.191 harris41 12565:
12566: =item *
12567:
1.243 albertel 12568: str2hash($string) : convert string to hash using unescaping and
12569: splitting on '=' and '&', supports elements that are arrayrefs and
12570: hashrefs
1.191 harris41 12571:
12572: =item *
12573:
1.243 albertel 12574: str2array($string) : convert string to hash using unescaping and
12575: splitting on '&', supports elements that are arrayrefs and hashrefs
12576:
12577: =back
12578:
12579: =head2 Logging Routines
12580:
12581:
12582: These routines allow one to make log messages in the lonnet.log and
12583: lonnet.perm logfiles.
1.191 harris41 12584:
1.1119 foxr 12585: =over 4
12586:
1.191 harris41 12587: =item *
12588:
1.243 albertel 12589: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 12590:
12591: =item *
12592:
1.243 albertel 12593: logthis() : append message to the normal lonnet.log file, it gets
12594: preiodically rolled over and deleted.
1.191 harris41 12595:
12596: =item *
12597:
1.243 albertel 12598: logperm() : append a permanent message to lonnet.perm.log, this log
12599: file never gets deleted by any automated portion of the system, only
12600: messages of critical importance should go in here.
12601:
1.1119 foxr 12602:
1.243 albertel 12603: =back
12604:
12605: =head2 General File Helper Routines
12606:
12607: =over 4
1.191 harris41 12608:
12609: =item *
12610:
1.481 raeburn 12611: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
12612: (a) files in /uploaded
12613: (i) If a local copy of the file exists -
12614: compares modification date of local copy with last-modified date for
12615: definitive version stored on home server for course. If local copy is
12616: stale, requests a new version from the home server and stores it.
12617: If the original has been removed from the home server, then local copy
12618: is unlinked.
12619: (ii) If local copy does not exist -
12620: requests the file from the home server and stores it.
12621:
12622: If $caller is 'uploadrep':
12623: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
12624: for request for files originally uploaded via DOCS.
12625: - returns 'ok' if fresh local copy now available, -1 otherwise.
12626:
12627: Otherwise:
12628: This indicates a call from the content generation phase of the request.
12629: - returns the entire contents of the file or -1.
12630:
12631: (b) files in /res
12632: - returns the entire contents of a file or -1;
12633: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 12634:
1.712 albertel 12635:
12636: =item *
12637:
12638: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
12639: reference
12640:
12641: returns either a stat() list of data about the file or an empty list
12642: if the file doesn't exist or couldn't find out about it (connection
12643: problems or user unknown)
12644:
1.191 harris41 12645: =item *
12646:
1.243 albertel 12647: filelocation($dir,$file) : returns file system location of a file
12648: based on URI; meant to be "fairly clean" absolute reference, $dir is a
12649: directory that relative $file lookups are to looked in ($dir of /a/dir
12650: and a file of ../bob will become /a/bob)
1.191 harris41 12651:
12652: =item *
12653:
12654: hreflocation($dir,$file) : returns file system location or a URL; same as
12655: filelocation except for hrefs
12656:
12657: =item *
12658:
12659: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
12660:
1.243 albertel 12661: =back
12662:
1.608 albertel 12663: =head2 Usererfile file routines (/uploaded*)
12664:
12665: =over 4
12666:
12667: =item *
12668:
12669: userfileupload(): main rotine for putting a file in a user or course's
12670: filespace, arguments are,
12671:
1.620 albertel 12672: formname - required - this is the name of the element in $env where the
1.608 albertel 12673: filename, and the contents of the file to create/modifed exist
1.620 albertel 12674: the filename is in $env{'form.'.$formname.'.filename'} and the
12675: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 12676: context - if coursedoc, store the file in the course of the active role
12677: of the current user;
12678: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
12679: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 12680: subdir - required - subdirectory to put the file in under ../userfiles/
12681: if undefined, it will be placed in "unknown"
12682:
12683: (This routine calls clean_filename() to remove any dangerous
12684: characters from the filename, and then calls finuserfileupload() to
12685: complete the transaction)
12686:
12687: returns either the url of the uploaded file (/uploaded/....) if successful
12688: and /adm/notfound.html if unsuccessful
12689:
12690: =item *
12691:
12692: clean_filename(): routine for cleaing a filename up for storage in
12693: userfile space, argument is:
12694:
12695: filename - proposed filename
12696:
12697: returns: the new clean filename
12698:
12699: =item *
12700:
1.1090 raeburn 12701: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 12702: userspace, probably shouldn't be called directly
12703:
12704: docuname: username or courseid of destination for the file
12705: docudom: domain of user/course of destination for the file
12706: formname: same as for userfileupload()
1.1090 raeburn 12707: fname: filename (including subdirectories) for the file
12708: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
12709: allfiles: reference to hash used to store objects found by parser
12710: codebase: reference to hash used for codebases of java objects found by parser
12711: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
12712: thumbheight: height (pixels) of thumbnail to be created for uploaded image
12713: resizewidth: width to be used to resize image using resizeImage from ImageMagick
12714: resizeheight: height to be used to resize image using resizeImage from ImageMagick
12715: context: if 'overwrite', will move the uploaded file from its temporary location to
12716: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 12717: mimetype: reference to scalar to accommodate mime type determined
12718: from File::MMagic if $parser = parse.
1.608 albertel 12719:
12720: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 12721: and /adm/notfound.html if unsuccessful (or an error message if context
12722: was 'overwrite').
12723:
1.608 albertel 12724:
12725: =item *
12726:
12727: renameuserfile(): renames an existing userfile to a new name
12728:
12729: Args:
12730: docuname: username or courseid of destination for the file
12731: docudom: domain of user/course of destination for the file
12732: old: current file name (including any subdirs under userfiles)
12733: new: desired file name (including any subdirs under userfiles)
12734:
12735: =item *
12736:
12737: mkdiruserfile(): creates a directory is a userfiles dir
12738:
12739: Args:
12740: docuname: username or courseid of destination for the file
12741: docudom: domain of user/course of destination for the file
12742: dir: dir to create (including any subdirs under userfiles)
12743:
12744: =item *
12745:
12746: removeuserfile(): removes a file that exists in userfiles
12747:
12748: Args:
12749: docuname: username or courseid of destination for the file
12750: docudom: domain of user/course of destination for the file
12751: fname: filname to delete (including any subdirs under userfiles)
12752:
12753: =item *
12754:
12755: removeuploadedurl(): convience function for removeuserfile()
12756:
12757: Args:
12758: url: a full /uploaded/... url to delete
12759:
1.747 albertel 12760: =item *
12761:
12762: get_portfile_permissions():
12763: Args:
12764: domain: domain of user or course contain the portfolio files
12765: user: name of user or num of course contain the portfolio files
12766: Returns:
12767: hashref of a dump of the proper file_permissions.db
12768:
12769:
12770: =item *
12771:
12772: get_access_controls():
12773:
12774: Args:
12775: current_permissions: the hash ref returned from get_portfile_permissions()
12776: group: (optional) the group you want the files associated with
12777: file: (optional) the file you want access info on
12778:
12779: Returns:
1.749 raeburn 12780: a hash (keys are file names) of hashes containing
12781: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
12782: values are XML containing access control settings (see below)
1.747 albertel 12783:
12784: Internal notes:
12785:
1.749 raeburn 12786: access controls are stored in file_permissions.db as key=value pairs.
12787: key -> path to file/file_name\0uniqueID:scope_end_start
12788: where scope -> public,guest,course,group,domains or users.
12789: end -> UNIX time for end of access (0 -> no end date)
12790: start -> UNIX time for start of access
12791:
12792: value -> XML description of access control
12793: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
12794: <start></start>
12795: <end></end>
12796:
12797: <password></password> for scope type = guest
12798:
12799: <domain></domain> for scope type = course or group
12800: <number></number>
12801: <roles id="">
12802: <role></role>
12803: <access></access>
12804: <section></section>
12805: <group></group>
12806: </roles>
12807:
12808: <dom></dom> for scope type = domains
12809:
12810: <users> for scope type = users
12811: <user>
12812: <uname></uname>
12813: <udom></udom>
12814: </user>
12815: </users>
12816: </scope>
12817:
12818: Access data is also aggregated for each file in an additional key=value pair:
12819: key -> path to file/file_name\0accesscontrol
12820: value -> reference to hash
12821: hash contains key = value pairs
12822: where key = uniqueID:scope_end_start
12823: value = UNIX time record was last updated
12824:
12825: Used to improve speed of look-ups of access controls for each file.
12826:
12827: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
12828:
12829: modify_access_controls():
12830:
12831: Modifies access controls for a portfolio file
12832: Args
12833: 1. file name
12834: 2. reference to hash of required changes,
12835: 3. domain
12836: 4. username
12837: where domain,username are the domain of the portfolio owner
12838: (either a user or a course)
12839:
12840: Returns:
12841: 1. result of additions or updates ('ok' or 'error', with error message).
12842: 2. result of deletions ('ok' or 'error', with error message).
12843: 3. reference to hash of any new or updated access controls.
12844: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
12845: key = integer (inbound ID)
12846: value = uniqueID
1.747 albertel 12847:
1.608 albertel 12848: =back
12849:
1.243 albertel 12850: =head2 HTTP Helper Routines
12851:
12852: =over 4
12853:
1.191 harris41 12854: =item *
12855:
12856: escape() : unpack non-word characters into CGI-compatible hex codes
12857:
12858: =item *
12859:
12860: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
12861:
1.243 albertel 12862: =back
12863:
12864: =head1 PRIVATE SUBROUTINES
12865:
12866: =head2 Underlying communication routines (Shouldn't call)
12867:
12868: =over 4
12869:
12870: =item *
12871:
12872: subreply() : tries to pass a message to lonc, returns con_lost if incapable
12873:
12874: =item *
12875:
12876: reply() : uses subreply to send a message to remote machine, logs all failures
12877:
12878: =item *
12879:
12880: critical() : passes a critical message to another server; if cannot
12881: get through then place message in connection buffer directory and
12882: returns con_delayed, if incapable of saving message, returns
12883: con_failed
12884:
12885: =item *
12886:
12887: reconlonc() : tries to reconnect lonc client processes.
12888:
12889: =back
12890:
12891: =head2 Resource Access Logging
12892:
12893: =over 4
12894:
12895: =item *
12896:
12897: flushcourselogs() : flush (save) buffer logs and access logs
12898:
12899: =item *
12900:
12901: courselog($what) : save message for course in hash
12902:
12903: =item *
12904:
12905: courseacclog($what) : save message for course using &courselog(). Perform
12906: special processing for specific resource types (problems, exams, quizzes, etc).
12907:
1.191 harris41 12908: =item *
12909:
12910: goodbye() : flush course logs and log shutting down; it is called in srm.conf
12911: as a PerlChildExitHandler
1.243 albertel 12912:
12913: =back
12914:
12915: =head2 Other
12916:
12917: =over 4
12918:
12919: =item *
12920:
12921: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 12922:
12923: =back
12924:
12925: =cut
1.877 foxr 12926:
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