Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1212
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1212 ! raeburn 4: # $Id: lonnet.pm,v 1.1211 2013/02/02 03:29:33 raeburn Exp $
1.178 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 32: =head1 NAME
33:
34: Apache::lonnet.pm
35:
36: =head1 SYNOPSIS
37:
38: This file is an interface to the lonc processes of
39: the LON-CAPA network as well as set of elaborated functions for handling information
40: necessary for navigating through a given cluster of LON-CAPA machines within a
41: domain. There are over 40 specialized functions in this module which handle the
42: reading and transmission of metadata, user information (ids, names, environments, roles,
43: logs), file information (storage, reading, directories, extensions, replication, embedded
44: styles and descriptors), educational resources (course descriptions, section names and
45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
46: and from more descriptive phrases or explanations.
47:
48: This is part of the LearningOnline Network with CAPA project
49: described at http://www.lon-capa.org.
50:
1.971 jms 51: =head1 Package Variables
52:
53: These are largely undocumented, so if you decipher one please note it here.
54:
55: =over 4
56:
57: =item $processmarker
58:
59: Contains the time this process was started and this servers host id.
60:
61: =item $dumpcount
62:
63: Counts the number of times a message log flush has been attempted (regardless
64: of success) by this process. Used as part of the filename when messages are
65: delayed.
66:
67: =back
68:
69: =cut
70:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.1182 foxr 78:
1.1173 foxr 79: use Encode;
80:
1.871 albertel 81: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 82: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
83: %managerstab);
1.871 albertel 84:
85: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
86: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
87: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 88: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 89:
1.1 albertel 90: use IO::Socket;
1.31 www 91: use GDBM_File;
1.208 albertel 92: use HTML::LCParser;
1.88 www 93: use Fcntl qw(:flock);
1.870 albertel 94: use Storable qw(thaw nfreeze);
1.539 albertel 95: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 96: use Cache::Memcached;
1.676 albertel 97: use Digest::MD5;
1.790 albertel 98: use Math::Random;
1.1024 raeburn 99: use File::MMagic;
1.807 albertel 100: use LONCAPA qw(:DEFAULT :match);
1.740 www 101: use LONCAPA::Configuration;
1.1160 www 102: use LONCAPA::lonmetadata;
1.1167 droeschl 103: use LONCAPA::Lond;
1.1117 foxr 104:
1.1090 raeburn 105: use File::Copy;
1.676 albertel 106:
1.195 www 107: my $readit;
1.550 foxr 108: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 109:
1.619 albertel 110: require Exporter;
111:
112: our @ISA = qw (Exporter);
113: our @EXPORT = qw(%env);
114:
1.449 matthew 115:
1.1187 raeburn 116: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 117: {
118: my $logid;
1.1187 raeburn 119: sub write_log {
1.1188 raeburn 120: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
1.1184 raeburn 121: if ($context eq 'course') {
122: if (($cnum eq '') || ($cdom eq '')) {
123: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
124: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
125: }
1.957 raeburn 126: }
1.1184 raeburn 127: $logid ++;
1.957 raeburn 128: my $now = time();
129: my $id=$now.'00000'.$$.'00000'.$logid;
1.1184 raeburn 130: my $logentry = {
131: $id => {
132: 'exe_uname' => $env{'user.name'},
133: 'exe_udom' => $env{'user.domain'},
134: 'exe_time' => $now,
135: 'exe_ip' => $ENV{'REMOTE_ADDR'},
136: 'delflag' => $delflag,
137: 'logentry' => $storehash,
138: 'uname' => $uname,
139: 'udom' => $udom,
140: }
141: };
142: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 143: }
144: }
1.1 albertel 145:
1.163 harris41 146: sub logtouch {
147: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 148: unless (-e "$execdir/logs/lonnet.log") {
149: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 150: close $fh;
151: }
152: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
153: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
154: }
155:
1.1 albertel 156: sub logthis {
157: my $message=shift;
158: my $execdir=$perlvar{'lonDaemons'};
159: my $now=time;
160: my $local=localtime($now);
1.448 albertel 161: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 162: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
163: print $fh $logstring;
1.448 albertel 164: close($fh);
165: }
1.1 albertel 166: return 1;
167: }
168:
169: sub logperm {
170: my $message=shift;
171: my $execdir=$perlvar{'lonDaemons'};
172: my $now=time;
173: my $local=localtime($now);
1.448 albertel 174: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
175: print $fh "$now:$message:$local\n";
176: close($fh);
177: }
1.1 albertel 178: return 1;
179: }
180:
1.850 albertel 181: sub create_connection {
1.853 albertel 182: my ($hostname,$lonid) = @_;
1.851 albertel 183: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 184: Type => SOCK_STREAM,
185: Timeout => 10);
186: return 0 if (!$client);
1.890 albertel 187: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 188: my $result = <$client>;
189: chomp($result);
190: return 1 if ($result eq 'done');
191: return 0;
192: }
193:
1.983 raeburn 194: sub get_server_timezone {
195: my ($cnum,$cdom) = @_;
196: my $home=&homeserver($cnum,$cdom);
197: if ($home ne 'no_host') {
198: my $cachetime = 24*3600;
199: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
200: if (defined($cached)) {
201: return $timezone;
202: } else {
203: my $timezone = &reply('servertimezone',$home);
204: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
205: }
206: }
207: }
1.850 albertel 208:
1.1106 raeburn 209: sub get_server_distarch {
210: my ($lonhost,$ignore_cache) = @_;
211: if (defined($lonhost)) {
212: if (!defined(&hostname($lonhost))) {
213: return;
214: }
215: my $cachetime = 12*3600;
216: if (!$ignore_cache) {
217: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
218: if (defined($cached)) {
219: return $distarch;
220: }
221: }
222: my $rep = &reply('serverdistarch',$lonhost);
223: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
224: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
225: $rep eq '') {
226: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
227: }
228: }
229: return;
230: }
231:
1.993 raeburn 232: sub get_server_loncaparev {
1.1073 raeburn 233: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 234: if (defined($lonhost)) {
235: if (!defined(&hostname($lonhost))) {
236: undef($lonhost);
237: }
238: }
239: if (!defined($lonhost)) {
240: if (defined(&domain($dom,'primary'))) {
241: $lonhost=&domain($dom,'primary');
242: if ($lonhost eq 'no_host') {
243: undef($lonhost);
244: }
245: }
246: }
247: if (defined($lonhost)) {
1.1073 raeburn 248: my $cachetime = 12*3600;
249: if (!$ignore_cache) {
250: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
251: if (defined($cached)) {
252: return $loncaparev;
253: }
254: }
255: my ($answer,$loncaparev);
256: my @ids=¤t_machine_ids();
257: if (grep(/^\Q$lonhost\E$/,@ids)) {
258: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 259: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 260: $loncaparev = $1;
261: }
262: } else {
263: $answer = &reply('serverloncaparev',$lonhost);
264: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
265: if ($caller eq 'loncron') {
266: my $ua=new LWP::UserAgent;
1.1082 raeburn 267: $ua->timeout(4);
1.1073 raeburn 268: my $protocol = $protocol{$lonhost};
269: $protocol = 'http' if ($protocol ne 'https');
270: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
271: my $request=new HTTP::Request('GET',$url);
272: my $response=$ua->request($request);
273: unless ($response->is_error()) {
274: my $content = $response->content;
1.1081 raeburn 275: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 276: $loncaparev = $1;
277: }
278: }
279: } else {
280: $loncaparev = $loncaparevs{$lonhost};
281: }
1.1081 raeburn 282: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 283: $loncaparev = $1;
284: }
1.993 raeburn 285: }
1.1073 raeburn 286: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 287: }
288: }
289:
1.1074 raeburn 290: sub get_server_homeID {
291: my ($hostname,$ignore_cache,$caller) = @_;
292: unless ($ignore_cache) {
293: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
294: if (defined($cached)) {
295: return $serverhomeID;
296: }
297: }
298: my $cachetime = 12*3600;
299: my $serverhomeID;
300: if ($caller eq 'loncron') {
301: my @machine_ids = &machine_ids($hostname);
302: foreach my $id (@machine_ids) {
303: my $response = &reply('serverhomeID',$id);
304: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
305: $serverhomeID = $response;
306: last;
307: }
308: }
309: if ($serverhomeID eq '') {
310: $serverhomeID = $machine_ids[-1];
311: }
312: } else {
313: $serverhomeID = $serverhomeIDs{$hostname};
314: }
315: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
316: }
317:
1.1121 raeburn 318: sub get_remote_globals {
319: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 320: my ($result,%returnhash,%whatneeded);
321: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 322: foreach my $what (sort(keys(%{$whathash}))) {
323: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 324: my ($response,$cached);
1.1121 raeburn 325: unless ($ignore_cache) {
1.1125 raeburn 326: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 327: }
328: if (defined($cached)) {
1.1125 raeburn 329: $returnhash{$what} = $response;
1.1121 raeburn 330: } else {
1.1125 raeburn 331: $whatneeded{$what} = 1;
1.1121 raeburn 332: }
333: }
1.1125 raeburn 334: if (keys(%whatneeded) == 0) {
335: $result = 'ok';
336: } else {
1.1121 raeburn 337: my $requested = &freeze_escape(\%whatneeded);
338: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 339: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
340: ($rep eq 'unknown_cmd')) {
341: $result = $rep;
342: } else {
343: $result = 'ok';
1.1121 raeburn 344: my @pairs=split(/\&/,$rep);
1.1125 raeburn 345: foreach my $item (@pairs) {
346: my ($key,$value)=split(/=/,$item,2);
347: my $what = &unescape($key);
348: my $hashid = $lonhost.'-'.$what;
349: $returnhash{$what}=&thaw_unescape($value);
350: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 351: }
352: }
353: }
354: }
1.1125 raeburn 355: return ($result,\%returnhash);
1.1121 raeburn 356: }
357:
1.1124 raeburn 358: sub remote_devalidate_cache {
359: my ($lonhost,$name,$id) = @_;
1.1130 raeburn 360: my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
1.1124 raeburn 361: return $response;
362: }
363:
1.1 albertel 364: # -------------------------------------------------- Non-critical communication
365: sub subreply {
366: my ($cmd,$server)=@_;
1.838 albertel 367: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 368: #
369: # With loncnew process trimming, there's a timing hole between lonc server
370: # process exit and the master server picking up the listen on the AF_UNIX
371: # socket. In that time interval, a lock file will exist:
372:
373: my $lockfile=$peerfile.".lock";
374: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
375: sleep(1);
376: }
377: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 378: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 379: #
1.550 foxr 380: # We'll give the connection a few tries before abandoning it. If
381: # connection is not possible, we'll con_lost back to the client.
382: #
383: my $client;
384: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
385: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
386: Type => SOCK_STREAM,
387: Timeout => 10);
1.869 albertel 388: if ($client) {
1.550 foxr 389: last; # Connected!
1.850 albertel 390: } else {
1.853 albertel 391: &create_connection(&hostname($server),$server);
1.550 foxr 392: }
1.850 albertel 393: sleep(1); # Try again later if failed connection.
1.550 foxr 394: }
395: my $answer;
396: if ($client) {
1.704 albertel 397: print $client "sethost:$server:$cmd\n";
1.550 foxr 398: $answer=<$client>;
399: if (!$answer) { $answer="con_lost"; }
400: chomp($answer);
401: } else {
402: $answer = 'con_lost'; # Failed connection.
403: }
1.1 albertel 404: return $answer;
405: }
406:
407: sub reply {
408: my ($cmd,$server)=@_;
1.838 albertel 409: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 410: my $answer=subreply($cmd,$server);
1.65 www 411: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 412: &logthis("<font color=\"blue\">WARNING:".
1.12 www 413: " $cmd to $server returned $answer</font>");
414: }
1.1 albertel 415: return $answer;
416: }
417:
418: # ----------------------------------------------------------- Send USR1 to lonc
419:
420: sub reconlonc {
1.891 albertel 421: my ($lonid) = @_;
422: my $hostname = &hostname($lonid);
423: if ($lonid) {
424: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
425: if ($hostname && -e $peerfile) {
426: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
427: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
428: Type => SOCK_STREAM,
429: Timeout => 10);
430: if ($client) {
431: print $client ("reset_retries\n");
432: my $answer=<$client>;
433: #reset just this one.
434: }
435: }
436: return;
437: }
438:
1.836 www 439: &logthis("Trying to reconnect lonc");
1.1 albertel 440: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 441: if (open(my $fh,"<$loncfile")) {
1.1 albertel 442: my $loncpid=<$fh>;
443: chomp($loncpid);
444: if (kill 0 => $loncpid) {
445: &logthis("lonc at pid $loncpid responding, sending USR1");
446: kill USR1 => $loncpid;
447: sleep 1;
1.836 www 448: } else {
1.12 www 449: &logthis(
1.672 albertel 450: "<font color=\"blue\">WARNING:".
1.12 www 451: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 452: }
453: } else {
1.836 www 454: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 455: }
456: }
457:
458: # ------------------------------------------------------ Critical communication
1.12 www 459:
1.1 albertel 460: sub critical {
461: my ($cmd,$server)=@_;
1.838 albertel 462: unless (&hostname($server)) {
1.672 albertel 463: &logthis("<font color=\"blue\">WARNING:".
1.89 www 464: " Critical message to unknown server ($server)</font>");
465: return 'no_such_host';
466: }
1.1 albertel 467: my $answer=reply($cmd,$server);
468: if ($answer eq 'con_lost') {
469: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 470: my $answer=reply($cmd,$server);
1.1 albertel 471: if ($answer eq 'con_lost') {
472: my $now=time;
473: my $middlename=$cmd;
1.5 www 474: $middlename=substr($middlename,0,16);
1.1 albertel 475: $middlename=~s/\W//g;
476: my $dfilename=
1.305 www 477: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
478: $dumpcount++;
1.1 albertel 479: {
1.448 albertel 480: my $dfh;
481: if (open($dfh,">$dfilename")) {
482: print $dfh "$cmd\n";
483: close($dfh);
484: }
1.1 albertel 485: }
486: sleep 2;
487: my $wcmd='';
488: {
1.448 albertel 489: my $dfh;
490: if (open($dfh,"<$dfilename")) {
491: $wcmd=<$dfh>;
492: close($dfh);
493: }
1.1 albertel 494: }
495: chomp($wcmd);
1.7 www 496: if ($wcmd eq $cmd) {
1.672 albertel 497: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 498: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 499: &logperm("D:$server:$cmd");
500: return 'con_delayed';
501: } else {
1.672 albertel 502: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 503: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 504: &logperm("F:$server:$cmd");
505: return 'con_failed';
506: }
507: }
508: }
509: return $answer;
1.405 albertel 510: }
511:
1.755 albertel 512: # ------------------------------------------- check if return value is an error
513:
514: sub error {
515: my ($result) = @_;
1.756 albertel 516: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 517: if ($2 == 2) { return undef; }
518: return $1;
519: }
520: return undef;
521: }
522:
1.783 albertel 523: sub convert_and_load_session_env {
524: my ($lonidsdir,$handle)=@_;
525: my @profile;
526: {
1.917 albertel 527: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
528: if (!$opened) {
1.915 albertel 529: return 0;
530: }
1.783 albertel 531: flock($idf,LOCK_SH);
532: @profile=<$idf>;
533: close($idf);
534: }
535: my %temp_env;
536: foreach my $line (@profile) {
1.786 albertel 537: if ($line !~ m/=/) {
538: return 0;
539: }
1.783 albertel 540: chomp($line);
541: my ($envname,$envvalue)=split(/=/,$line,2);
542: $temp_env{&unescape($envname)} = &unescape($envvalue);
543: }
544: unlink("$lonidsdir/$handle.id");
545: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
546: 0640)) {
547: %disk_env = %temp_env;
548: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
549: untie(%disk_env);
550: }
1.786 albertel 551: return 1;
1.783 albertel 552: }
553:
1.374 www 554: # ------------------------------------------- Transfer profile into environment
1.780 albertel 555: my $env_loaded;
556: sub transfer_profile_to_env {
1.788 albertel 557: my ($lonidsdir,$handle,$force_transfer) = @_;
558: if (!$force_transfer && $env_loaded) { return; }
1.374 www 559:
1.720 albertel 560: if (!defined($lonidsdir)) {
561: $lonidsdir = $perlvar{'lonIDsDir'};
562: }
563: if (!defined($handle)) {
564: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
565: }
566:
1.786 albertel 567: my $convert;
568: {
1.917 albertel 569: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
570: if (!$opened) {
1.915 albertel 571: return;
572: }
1.786 albertel 573: flock($idf,LOCK_SH);
574: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
575: &GDBM_READER(),0640)) {
576: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
577: untie(%disk_env);
578: } else {
579: $convert = 1;
580: }
581: }
582: if ($convert) {
583: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
584: &logthis("Failed to load session, or convert session.");
585: }
1.374 www 586: }
1.783 albertel 587:
1.786 albertel 588: my %remove;
1.783 albertel 589: while ( my $envname = each(%env) ) {
1.433 matthew 590: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
591: if ($time < time-300) {
1.783 albertel 592: $remove{$key}++;
1.433 matthew 593: }
594: }
595: }
1.783 albertel 596:
1.619 albertel 597: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 598: $env_loaded=1;
1.783 albertel 599: foreach my $expired_key (keys(%remove)) {
1.433 matthew 600: &delenv($expired_key);
1.374 www 601: }
1.1 albertel 602: }
603:
1.916 albertel 604: # ---------------------------------------------------- Check for valid session
605: sub check_for_valid_session {
1.1155 raeburn 606: my ($r,$name) = @_;
1.916 albertel 607: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 608: if ($name eq '') {
609: $name = 'lonID';
610: }
611: my $lonid=$cookies{$name};
1.916 albertel 612: return undef if (!$lonid);
613:
614: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 615: my $lonidsdir;
616: if ($name eq 'lonDAV') {
617: $lonidsdir=$r->dir_config('lonDAVsessDir');
618: } else {
619: $lonidsdir=$r->dir_config('lonIDsDir');
620: }
1.916 albertel 621: return undef if (!-e "$lonidsdir/$handle.id");
622:
1.917 albertel 623: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
624: return undef if (!$opened);
1.916 albertel 625:
626: flock($idf,LOCK_SH);
627: my %disk_env;
628: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
629: &GDBM_READER(),0640)) {
630: return undef;
631: }
632:
633: if (!defined($disk_env{'user.name'})
634: || !defined($disk_env{'user.domain'})) {
635: return undef;
636: }
1.1212 ! raeburn 637: if ($r->user() eq '') {
! 638: if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
! 639: $r->user($disk_env{'user.name'});
! 640: } else {
! 641: $r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
! 642: }
! 643: }
1.916 albertel 644: return $handle;
645: }
646:
1.830 albertel 647: sub timed_flock {
648: my ($file,$lock_type) = @_;
649: my $failed=0;
650: eval {
651: local $SIG{__DIE__}='DEFAULT';
652: local $SIG{ALRM}=sub {
653: $failed=1;
654: die("failed lock");
655: };
656: alarm(13);
657: flock($file,$lock_type);
658: alarm(0);
659: };
660: if ($failed) {
661: return undef;
662: } else {
663: return 1;
664: }
665: }
666:
1.5 www 667: # ---------------------------------------------------------- Append Environment
668:
669: sub appenv {
1.949 raeburn 670: my ($newenv,$roles) = @_;
671: if (ref($newenv) eq 'HASH') {
672: foreach my $key (keys(%{$newenv})) {
673: my $refused = 0;
674: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
675: $refused = 1;
676: if (ref($roles) eq 'ARRAY') {
677: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
678: if (grep(/^\Q$role\E$/,@{$roles})) {
679: $refused = 0;
680: }
681: }
682: }
683: if ($refused) {
684: &logthis("<font color=\"blue\">WARNING: ".
685: "Attempt to modify environment ".$key." to ".$newenv->{$key}
686: .'</font>');
687: delete($newenv->{$key});
688: } else {
689: $env{$key}=$newenv->{$key};
690: }
691: }
692: my $opened = open(my $env_file,'+<',$env{'user.environment'});
693: if ($opened
694: && &timed_flock($env_file,LOCK_EX)
695: &&
696: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
697: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
698: while (my ($key,$value) = each(%{$newenv})) {
699: $disk_env{$key} = $value;
700: }
701: untie(%disk_env);
1.35 www 702: }
1.191 harris41 703: }
1.56 www 704: return 'ok';
705: }
706: # ----------------------------------------------------- Delete from Environment
707:
708: sub delenv {
1.1104 raeburn 709: my ($delthis,$regexp,$roles) = @_;
710: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
711: my $refused = 1;
712: if (ref($roles) eq 'ARRAY') {
713: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
714: if (grep(/^\Q$role\E$/,@{$roles})) {
715: $refused = 0;
716: }
717: }
718: if ($refused) {
719: &logthis("<font color=\"blue\">WARNING: ".
720: "Attempt to delete from environment ".$delthis);
721: return 'error';
722: }
1.56 www 723: }
1.917 albertel 724: my $opened = open(my $env_file,'+<',$env{'user.environment'});
725: if ($opened
1.915 albertel 726: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 727: &&
728: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
729: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 730: foreach my $key (keys(%disk_env)) {
1.987 raeburn 731: if ($regexp) {
732: if ($key=~/^$delthis/) {
733: delete($env{$key});
734: delete($disk_env{$key});
735: }
736: } else {
737: if ($key=~/^\Q$delthis\E/) {
738: delete($env{$key});
739: delete($disk_env{$key});
740: }
741: }
1.448 albertel 742: }
1.783 albertel 743: untie(%disk_env);
1.5 www 744: }
745: return 'ok';
1.369 albertel 746: }
747:
1.790 albertel 748: sub get_env_multiple {
749: my ($name) = @_;
750: my @values;
751: if (defined($env{$name})) {
752: # exists is it an array
753: if (ref($env{$name})) {
754: @values=@{ $env{$name} };
755: } else {
756: $values[0]=$env{$name};
757: }
758: }
759: return(@values);
760: }
761:
1.958 www 762: # ------------------------------------------------------------------- Locking
763:
764: sub set_lock {
765: my ($text)=@_;
766: $locknum++;
767: my $id=$$.'-'.$locknum;
768: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
769: 'session.lock.'.$id => $text});
770: return $id;
771: }
772:
773: sub get_locks {
774: my $num=0;
775: my %texts=();
776: foreach my $lock (split(/\,/,$env{'session.locks'})) {
777: if ($lock=~/\w/) {
778: $num++;
779: $texts{$lock}=$env{'session.lock.'.$lock};
780: }
781: }
782: return ($num,%texts);
783: }
784:
785: sub remove_lock {
786: my ($id)=@_;
787: my $newlocks='';
788: foreach my $lock (split(/\,/,$env{'session.locks'})) {
789: if (($lock=~/\w/) && ($lock ne $id)) {
790: $newlocks.=','.$lock;
791: }
792: }
793: &appenv({'session.locks' => $newlocks});
794: &delenv('session.lock.'.$id);
795: }
796:
797: sub remove_all_locks {
798: my $activelocks=$env{'session.locks'};
799: foreach my $lock (split(/\,/,$env{'session.locks'})) {
800: if ($lock=~/\w/) {
801: &remove_lock($lock);
802: }
803: }
804: }
805:
806:
1.369 albertel 807: # ------------------------------------------ Find out current server userload
808: sub userload {
809: my $numusers=0;
810: {
811: opendir(LONIDS,$perlvar{'lonIDsDir'});
812: my $filename;
813: my $curtime=time;
814: while ($filename=readdir(LONIDS)) {
1.925 albertel 815: next if ($filename eq '.' || $filename eq '..');
816: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 817: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 818: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 819: }
820: closedir(LONIDS);
821: }
822: my $userloadpercent=0;
823: my $maxuserload=$perlvar{'lonUserLoadLim'};
824: if ($maxuserload) {
1.371 albertel 825: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 826: }
1.372 albertel 827: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 828: return $userloadpercent;
1.283 www 829: }
830:
1.1 albertel 831: # ------------------------------ Find server with least workload from spare.tab
1.11 www 832:
1.1 albertel 833: sub spareserver {
1.1083 raeburn 834: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 835: my $spare_server;
1.370 albertel 836: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 837: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
838: : $userloadpercent;
1.1083 raeburn 839: my ($uint_dom,$remotesessions);
840: if (($udom ne '') && (&domain($udom) ne '')) {
841: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
842: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
843: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
844: $remotesessions = $udomdefaults{'remotesessions'};
845: }
1.1123 raeburn 846: my $spareshash = &this_host_spares($udom);
847: if (ref($spareshash) eq 'HASH') {
848: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
849: foreach my $try_server (@{ $spareshash->{'primary'} }) {
850: if ($uint_dom) {
851: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
852: $try_server));
853: }
854: ($spare_server, $lowest_load) =
855: &compare_server_load($try_server, $spare_server, $lowest_load);
856: }
1.1083 raeburn 857: }
1.784 albertel 858:
1.1123 raeburn 859: my $found_server = ($spare_server ne '' && $lowest_load < 100);
860:
861: if (!$found_server) {
862: if (ref($spareshash->{'default'}) eq 'ARRAY') {
863: foreach my $try_server (@{ $spareshash->{'default'} }) {
864: if ($uint_dom) {
865: next unless (&spare_can_host($udom,$uint_dom,
866: $remotesessions,$try_server));
867: }
868: ($spare_server, $lowest_load) =
869: &compare_server_load($try_server, $spare_server, $lowest_load);
870: }
871: }
872: }
1.784 albertel 873: }
874:
875: if (!$want_server_name) {
1.968 raeburn 876: my $protocol = 'http';
877: if ($protocol{$spare_server} eq 'https') {
878: $protocol = $protocol{$spare_server};
879: }
1.1001 raeburn 880: if (defined($spare_server)) {
881: my $hostname = &hostname($spare_server);
1.1083 raeburn 882: if (defined($hostname)) {
1.1001 raeburn 883: $spare_server = $protocol.'://'.$hostname;
884: }
885: }
1.784 albertel 886: }
887: return $spare_server;
888: }
889:
890: sub compare_server_load {
891: my ($try_server, $spare_server, $lowest_load) = @_;
892:
893: my $loadans = &reply('load', $try_server);
894: my $userloadans = &reply('userload',$try_server);
895:
896: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 897: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 898: }
899:
900: my $load;
901: if ($loadans =~ /\d/) {
902: if ($userloadans =~ /\d/) {
903: #both are numbers, pick the bigger one
904: $load = ($loadans > $userloadans) ? $loadans
905: : $userloadans;
1.411 albertel 906: } else {
1.784 albertel 907: $load = $loadans;
1.411 albertel 908: }
1.784 albertel 909: } else {
910: $load = $userloadans;
911: }
912:
913: if (($load =~ /\d/) && ($load < $lowest_load)) {
914: $spare_server = $try_server;
915: $lowest_load = $load;
1.370 albertel 916: }
1.784 albertel 917: return ($spare_server,$lowest_load);
1.202 matthew 918: }
1.914 albertel 919:
920: # --------------------------- ask offload servers if user already has a session
921: sub find_existing_session {
922: my ($udom,$uname) = @_;
1.1123 raeburn 923: my $spareshash = &this_host_spares($udom);
924: if (ref($spareshash) eq 'HASH') {
925: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
926: foreach my $try_server (@{ $spareshash->{'primary'} }) {
927: return $try_server if (&has_user_session($try_server, $udom, $uname));
928: }
929: }
930: if (ref($spareshash->{'default'}) eq 'ARRAY') {
931: foreach my $try_server (@{ $spareshash->{'default'} }) {
932: return $try_server if (&has_user_session($try_server, $udom, $uname));
933: }
934: }
1.914 albertel 935: }
936: return;
937: }
938:
939: # -------------------------------- ask if server already has a session for user
940: sub has_user_session {
941: my ($lonid,$udom,$uname) = @_;
942: my $result = &reply(join(':','userhassession',
943: map {&escape($_)} ($udom,$uname)),$lonid);
944: return 1 if ($result eq 'ok');
945:
946: return 0;
947: }
948:
1.1076 raeburn 949: # --------- determine least loaded server in a user's domain which allows login
950:
951: sub choose_server {
1.1115 raeburn 952: my ($udom,$checkloginvia) = @_;
1.1076 raeburn 953: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 954: my %servers = &get_servers($udom);
1.1076 raeburn 955: my $lowest_load = 30000;
1.1151 raeburn 956: my ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 957: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 958: my $loginvia;
959: if ($checkloginvia) {
960: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 961: if ($loginvia) {
962: my ($server,$path) = split(/:/,$loginvia);
963: ($login_host, $lowest_load) =
964: &compare_server_load($server, $login_host, $lowest_load);
965: if ($login_host eq $server) {
966: $portal_path = $path;
1.1151 raeburn 967: $isredirect = 1;
1.1116 raeburn 968: }
969: } else {
970: ($login_host, $lowest_load) =
971: &compare_server_load($lonhost, $login_host, $lowest_load);
972: if ($login_host eq $lonhost) {
973: $portal_path = '';
1.1151 raeburn 974: $isredirect = '';
1.1116 raeburn 975: }
976: }
977: } else {
1.1076 raeburn 978: ($login_host, $lowest_load) =
1.1116 raeburn 979: &compare_server_load($lonhost, $login_host, $lowest_load);
1.1076 raeburn 980: }
981: }
982: if ($login_host ne '') {
1.1116 raeburn 983: $hostname = &hostname($login_host);
1.1076 raeburn 984: }
1.1151 raeburn 985: return ($login_host,$hostname,$portal_path,$isredirect);
1.1076 raeburn 986: }
987:
1.202 matthew 988: # --------------------------------------------- Try to change a user's password
989:
990: sub changepass {
1.799 raeburn 991: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 992: $currentpass = &escape($currentpass);
993: $newpass = &escape($newpass);
1.1030 raeburn 994: my $lonhost = $perlvar{'lonHostID'};
995: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 996: $server);
997: if (! $answer) {
998: &logthis("No reply on password change request to $server ".
999: "by $uname in domain $udom.");
1000: } elsif ($answer =~ "^ok") {
1001: &logthis("$uname in $udom successfully changed their password ".
1002: "on $server.");
1003: } elsif ($answer =~ "^pwchange_failure") {
1004: &logthis("$uname in $udom was unable to change their password ".
1005: "on $server. The action was blocked by either lcpasswd ".
1006: "or pwchange");
1007: } elsif ($answer =~ "^non_authorized") {
1008: &logthis("$uname in $udom did not get their password correct when ".
1009: "attempting to change it on $server.");
1010: } elsif ($answer =~ "^auth_mode_error") {
1011: &logthis("$uname in $udom attempted to change their password despite ".
1012: "not being locally or internally authenticated on $server.");
1013: } elsif ($answer =~ "^unknown_user") {
1014: &logthis("$uname in $udom attempted to change their password ".
1015: "on $server but were unable to because $server is not ".
1016: "their home server.");
1017: } elsif ($answer =~ "^refused") {
1018: &logthis("$server refused to change $uname in $udom password because ".
1019: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1020: } elsif ($answer =~ "invalid_client") {
1021: &logthis("$server refused to change $uname in $udom password because ".
1022: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1023: }
1024: return $answer;
1.1 albertel 1025: }
1026:
1.169 harris41 1027: # ----------------------- Try to determine user's current authentication scheme
1028:
1029: sub queryauthenticate {
1030: my ($uname,$udom)=@_;
1.456 albertel 1031: my $uhome=&homeserver($uname,$udom);
1032: if (!$uhome) {
1033: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1034: return 'no_host';
1035: }
1036: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1037: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1038: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1039: }
1.456 albertel 1040: return $answer;
1.169 harris41 1041: }
1042:
1.1 albertel 1043: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1044:
1.1 albertel 1045: sub authenticate {
1.1073 raeburn 1046: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1047: $upass=&escape($upass);
1048: $uname= &LONCAPA::clean_username($uname);
1.836 www 1049: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1050: my $newhome;
1.836 www 1051: if ((!$uhome) || ($uhome eq 'no_host')) {
1052: # Maybe the machine was offline and only re-appeared again recently?
1053: &reconlonc();
1054: # One more
1.952 raeburn 1055: $uhome=&homeserver($uname,$udom,1);
1056: if (($uhome eq 'no_host') && $checkdefauth) {
1057: if (defined(&domain($udom,'primary'))) {
1058: $newhome=&domain($udom,'primary');
1059: }
1060: if ($newhome ne '') {
1061: $uhome = $newhome;
1062: }
1063: }
1.836 www 1064: if ((!$uhome) || ($uhome eq 'no_host')) {
1065: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1066: return 'no_host';
1067: }
1.1 albertel 1068: }
1.1073 raeburn 1069: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1070: if ($answer eq 'authorized') {
1.952 raeburn 1071: if ($newhome) {
1072: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1073: return 'no_account_on_host';
1074: } else {
1075: &logthis("User $uname at $udom authorized by $uhome");
1076: return $uhome;
1077: }
1.471 albertel 1078: }
1079: if ($answer eq 'non_authorized') {
1080: &logthis("User $uname at $udom rejected by $uhome");
1081: return 'no_host';
1.9 www 1082: }
1.471 albertel 1083: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1084: return 'no_host';
1085: }
1086:
1.1073 raeburn 1087: sub can_host_session {
1.1074 raeburn 1088: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1089: my $canhost = 1;
1.1074 raeburn 1090: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1091: if (ref($remotesessions) eq 'HASH') {
1092: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1093: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1094: $canhost = 0;
1095: } else {
1096: $canhost = 1;
1097: }
1098: }
1099: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1100: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1101: $canhost = 1;
1102: } else {
1103: $canhost = 0;
1104: }
1105: }
1106: if ($canhost) {
1107: if ($remotesessions->{'version'} ne '') {
1108: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1109: if ($reqmajor ne '' && $reqminor ne '') {
1110: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1111: my $major = $1;
1112: my $minor = $2;
1113: if (($major < $reqmajor ) ||
1114: (($major == $reqmajor) && ($minor < $reqminor))) {
1115: $canhost = 0;
1116: }
1117: } else {
1118: $canhost = 0;
1119: }
1120: }
1121: }
1122: }
1123: }
1124: if ($canhost) {
1125: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1126: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1127: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1128: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1129: if (($uint_dom ne '') &&
1130: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1131: $canhost = 0;
1132: } else {
1133: $canhost = 1;
1134: }
1135: }
1136: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1137: if (($uint_dom ne '') &&
1138: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1139: $canhost = 1;
1140: } else {
1141: $canhost = 0;
1142: }
1143: }
1144: }
1145: }
1146: return $canhost;
1147: }
1148:
1.1083 raeburn 1149: sub spare_can_host {
1150: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1151: my $canhost=1;
1152: my @intdoms;
1153: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1154: if (ref($internet_names) eq 'ARRAY') {
1155: @intdoms = @{$internet_names};
1156: }
1157: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1158: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1159: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1160: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1161: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1162: $canhost = &can_host_session($udom,$try_server,$remoterev,
1163: $remotesessions,
1164: $defdomdefaults{'hostedsessions'});
1165: }
1166: return $canhost;
1167: }
1168:
1.1123 raeburn 1169: sub this_host_spares {
1170: my ($dom) = @_;
1.1126 raeburn 1171: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1172: my @hosts = ¤t_machine_ids();
1173: foreach my $lonhost (@hosts) {
1174: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1175: $dom_in_use = $dom;
1176: $lonhost_in_use = $lonhost;
1.1123 raeburn 1177: last;
1178: }
1179: }
1.1126 raeburn 1180: if ($dom_in_use ne '') {
1181: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1182: }
1183: if (ref($result) ne 'HASH') {
1184: $lonhost_in_use = $perlvar{'lonHostID'};
1185: $dom_in_use = &host_domain($lonhost_in_use);
1186: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1187: if (ref($result) ne 'HASH') {
1188: $result = \%spareid;
1189: }
1190: }
1191: return $result;
1192: }
1193:
1194: sub spares_for_offload {
1195: my ($dom_in_use,$lonhost_in_use) = @_;
1196: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1197: if (defined($cached)) {
1198: return $result;
1199: } else {
1.1126 raeburn 1200: my $cachetime = 60*60*24;
1201: my %domconfig =
1202: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1203: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1204: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1205: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1206: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1207: }
1208: }
1209: }
1210: }
1.1126 raeburn 1211: return;
1.1123 raeburn 1212: }
1213:
1.1129 raeburn 1214: sub get_lonbalancer_config {
1215: my ($servers) = @_;
1216: my ($currbalancer,$currtargets);
1217: if (ref($servers) eq 'HASH') {
1218: foreach my $server (keys(%{$servers})) {
1219: my %what = (
1220: spareid => 1,
1221: perlvar => 1,
1222: );
1223: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1224: if ($result eq 'ok') {
1225: if (ref($returnhash) eq 'HASH') {
1226: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1227: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1228: $currbalancer = $server;
1229: $currtargets = {};
1230: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1231: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1232: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1233: }
1234: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1235: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1236: }
1237: }
1238: last;
1239: }
1240: }
1241: }
1242: }
1243: }
1244: }
1245: return ($currbalancer,$currtargets);
1246: }
1247:
1248: sub check_loadbalancing {
1249: my ($uname,$udom) = @_;
1.1191 raeburn 1250: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1251: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1252: my $lonhost = $perlvar{'lonHostID'};
1.1175 raeburn 1253: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1254: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1255: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1256: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1257: my $serverhomedom = &host_domain($lonhost);
1258:
1259: my $cachetime = 60*60*24;
1260:
1261: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1262: $dom_in_use = $udom;
1263: $homeintdom = 1;
1264: } else {
1265: $dom_in_use = $serverhomedom;
1266: }
1267: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1268: unless (defined($cached)) {
1269: my %domconfig =
1270: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1271: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1272: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1273: }
1274: }
1275: if (ref($result) eq 'HASH') {
1.1191 raeburn 1276: ($is_balancer,$currtargets,$currrules) =
1277: &check_balancer_result($result,@hosts);
1.1129 raeburn 1278: if ($is_balancer) {
1279: if (ref($currrules) eq 'HASH') {
1280: if ($homeintdom) {
1281: if ($uname ne '') {
1282: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1283: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1284: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1285: $rule_in_effect = $currrules->{'_LC_author'};
1286: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1287: $rule_in_effect = $currrules->{'_LC_adv'}
1288: }
1289: }
1290: if ($rule_in_effect eq '') {
1291: my %userenv = &userenvironment($udom,$uname,'inststatus');
1292: if ($userenv{'inststatus'} ne '') {
1293: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1294: my ($othertitle,$usertypes,$types) =
1295: &Apache::loncommon::sorted_inst_types($udom);
1296: if (ref($types) eq 'ARRAY') {
1297: foreach my $type (@{$types}) {
1298: if (grep(/^\Q$type\E$/,@statuses)) {
1299: if (exists($currrules->{$type})) {
1300: $rule_in_effect = $currrules->{$type};
1301: }
1302: }
1303: }
1304: }
1305: } else {
1306: if (exists($currrules->{'default'})) {
1307: $rule_in_effect = $currrules->{'default'};
1308: }
1309: }
1310: }
1311: } else {
1312: if (exists($currrules->{'default'})) {
1313: $rule_in_effect = $currrules->{'default'};
1314: }
1315: }
1316: } else {
1317: if ($currrules->{'_LC_external'} ne '') {
1318: $rule_in_effect = $currrules->{'_LC_external'};
1319: }
1320: }
1321: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1322: $uname,$udom);
1323: }
1324: }
1325: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1326: my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1327: unless (defined($cached)) {
1328: my %domconfig =
1329: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1330: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1331: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1129 raeburn 1332: }
1333: }
1334: if (ref($result) eq 'HASH') {
1.1191 raeburn 1335: ($is_balancer,$currtargets,$currrules) =
1336: &check_balancer_result($result,@hosts);
1337: if ($is_balancer) {
1.1129 raeburn 1338: if (ref($currrules) eq 'HASH') {
1339: if ($currrules->{'_LC_internetdom'} ne '') {
1340: $rule_in_effect = $currrules->{'_LC_internetdom'};
1341: }
1342: }
1343: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1344: $uname,$udom);
1345: }
1346: } else {
1347: if ($perlvar{'lonBalancer'} eq 'yes') {
1348: $is_balancer = 1;
1349: $offloadto = &this_host_spares($dom_in_use);
1350: }
1351: }
1352: } else {
1353: if ($perlvar{'lonBalancer'} eq 'yes') {
1354: $is_balancer = 1;
1355: $offloadto = &this_host_spares($dom_in_use);
1356: }
1357: }
1.1176 raeburn 1358: if ($is_balancer) {
1359: my $lowest_load = 30000;
1360: if (ref($offloadto) eq 'HASH') {
1361: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1362: foreach my $try_server (@{$offloadto->{'primary'}}) {
1363: ($otherserver,$lowest_load) =
1364: &compare_server_load($try_server,$otherserver,$lowest_load);
1365: }
1.1129 raeburn 1366: }
1.1176 raeburn 1367: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1368:
1.1176 raeburn 1369: if (!$found_server) {
1370: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1371: foreach my $try_server (@{$offloadto->{'default'}}) {
1372: ($otherserver,$lowest_load) =
1373: &compare_server_load($try_server,$otherserver,$lowest_load);
1374: }
1375: }
1376: }
1377: } elsif (ref($offloadto) eq 'ARRAY') {
1378: if (@{$offloadto} == 1) {
1379: $otherserver = $offloadto->[0];
1380: } elsif (@{$offloadto} > 1) {
1381: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1382: ($otherserver,$lowest_load) =
1383: &compare_server_load($try_server,$otherserver,$lowest_load);
1384: }
1385: }
1386: }
1.1176 raeburn 1387: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1388: $is_balancer = 0;
1389: if ($uname ne '' && $udom ne '') {
1390: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1391:
1392: &appenv({'user.loadbalexempt' => $lonhost,
1393: 'user.loadbalcheck.time' => time});
1394: }
1.1129 raeburn 1395: }
1396: }
1397: }
1398: return ($is_balancer,$otherserver);
1399: }
1400:
1.1191 raeburn 1401: sub check_balancer_result {
1402: my ($result,@hosts) = @_;
1403: my ($is_balancer,$currtargets,$currrules);
1404: if (ref($result) eq 'HASH') {
1405: if ($result->{'lonhost'} ne '') {
1406: my $currbalancer = $result->{'lonhost'};
1407: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1408: $is_balancer = 1;
1409: $currtargets = $result->{'targets'};
1410: $currrules = $result->{'rules'};
1411: }
1412: } else {
1413: foreach my $key (keys(%{$result})) {
1414: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1415: (ref($result->{$key}) eq 'HASH')) {
1416: $is_balancer = 1;
1417: $currrules = $result->{$key}{'rules'};
1418: $currtargets = $result->{$key}{'targets'};
1419: last;
1420: }
1421: }
1422: }
1423: }
1424: return ($is_balancer,$currtargets,$currrules);
1425: }
1426:
1.1129 raeburn 1427: sub get_loadbalancer_targets {
1428: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1429: my $offloadto;
1.1175 raeburn 1430: if ($rule_in_effect eq 'none') {
1431: return [$perlvar{'lonHostID'}];
1432: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1433: $offloadto = $currtargets;
1434: } else {
1435: if ($rule_in_effect eq 'homeserver') {
1436: my $homeserver = &homeserver($uname,$udom);
1437: if ($homeserver ne 'no_host') {
1438: $offloadto = [$homeserver];
1439: }
1440: } elsif ($rule_in_effect eq 'externalbalancer') {
1441: my %domconfig =
1442: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1443: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1444: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1445: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1446: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1447: }
1448: }
1449: } else {
1.1178 raeburn 1450: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1451: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1452: if (&hostname($remotebalancer) ne '') {
1453: $offloadto = [$remotebalancer];
1454: }
1455: }
1456: } elsif (&hostname($rule_in_effect) ne '') {
1457: $offloadto = [$rule_in_effect];
1458: }
1459: }
1460: return $offloadto;
1461: }
1462:
1.1127 raeburn 1463: sub internet_dom_servers {
1464: my ($dom) = @_;
1465: my (%uniqservers,%servers);
1466: my $primaryserver = &hostname(&domain($dom,'primary'));
1467: my @machinedoms = &machine_domains($primaryserver);
1468: foreach my $mdom (@machinedoms) {
1469: my %currservers = %servers;
1470: my %server = &get_servers($mdom);
1471: %servers = (%currservers,%server);
1472: }
1473: my %by_hostname;
1474: foreach my $id (keys(%servers)) {
1475: push(@{$by_hostname{$servers{$id}}},$id);
1476: }
1477: foreach my $hostname (sort(keys(%by_hostname))) {
1478: if (@{$by_hostname{$hostname}} > 1) {
1479: my $match = 0;
1480: foreach my $id (@{$by_hostname{$hostname}}) {
1481: if (&host_domain($id) eq $dom) {
1482: $uniqservers{$id} = $hostname;
1483: $match = 1;
1484: }
1485: }
1486: unless ($match) {
1487: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1488: }
1489: } else {
1490: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1491: }
1492: }
1493: return %uniqservers;
1494: }
1495:
1.1 albertel 1496: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1497:
1.599 albertel 1498: my %homecache;
1.1 albertel 1499: sub homeserver {
1.230 stredwic 1500: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1501: my $index="$uname:$udom";
1.426 albertel 1502:
1.599 albertel 1503: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1504:
1505: my %servers = &get_servers($udom,'library');
1506: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1507: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1508: exists($badServerCache{$tryserver}));
1.841 albertel 1509:
1510: my $answer=reply("home:$udom:$uname",$tryserver);
1511: if ($answer eq 'found') {
1512: delete($badServerCache{$tryserver});
1513: return $homecache{$index}=$tryserver;
1514: } elsif ($answer eq 'no_host') {
1515: $badServerCache{$tryserver}=1;
1516: }
1.1 albertel 1517: }
1518: return 'no_host';
1.70 www 1519: }
1520:
1521: # ------------------------------------- Find the usernames behind a list of IDs
1522:
1523: sub idget {
1524: my ($udom,@ids)=@_;
1525: my %returnhash=();
1526:
1.841 albertel 1527: my %servers = &get_servers($udom,'library');
1528: foreach my $tryserver (keys(%servers)) {
1529: my $idlist=join('&',@ids);
1530: $idlist=~tr/A-Z/a-z/;
1531: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1532: my @answer=();
1533: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1534: @answer=split(/\&/,$reply);
1535: } ;
1536: my $i;
1537: for ($i=0;$i<=$#ids;$i++) {
1538: if ($answer[$i]) {
1539: $returnhash{$ids[$i]}=$answer[$i];
1540: }
1541: }
1542: }
1.70 www 1543: return %returnhash;
1544: }
1545:
1546: # ------------------------------------- Find the IDs behind a list of usernames
1547:
1548: sub idrget {
1549: my ($udom,@unames)=@_;
1550: my %returnhash=();
1.800 albertel 1551: foreach my $uname (@unames) {
1552: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1553: }
1.70 www 1554: return %returnhash;
1555: }
1556:
1557: # ------------------------------- Store away a list of names and associated IDs
1558:
1559: sub idput {
1560: my ($udom,%ids)=@_;
1561: my %servers=();
1.800 albertel 1562: foreach my $uname (keys(%ids)) {
1563: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1564: my $uhom=&homeserver($uname,$udom);
1.70 www 1565: if ($uhom ne 'no_host') {
1.800 albertel 1566: my $id=&escape($ids{$uname});
1.70 www 1567: $id=~tr/A-Z/a-z/;
1.800 albertel 1568: my $esc_unam=&escape($uname);
1.70 www 1569: if ($servers{$uhom}) {
1.800 albertel 1570: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1571: } else {
1.800 albertel 1572: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1573: }
1574: }
1.191 harris41 1575: }
1.800 albertel 1576: foreach my $server (keys(%servers)) {
1577: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1578: }
1.344 www 1579: }
1580:
1.1023 raeburn 1581: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1582: sub dump_dom {
1.1165 droeschl 1583: my ($namespace, $udom, $regexp) = @_;
1584:
1585: $udom ||= $env{'user.domain'};
1586:
1587: return () unless $udom;
1588:
1589: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1590: }
1591:
1.1023 raeburn 1592: # ------------------------------------------ get items from domain db files
1.806 raeburn 1593:
1594: sub get_dom {
1.860 raeburn 1595: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1596: my $items='';
1597: foreach my $item (@$storearr) {
1598: $items.=&escape($item).'&';
1599: }
1600: $items=~s/\&$//;
1.860 raeburn 1601: if (!$udom) {
1602: $udom=$env{'user.domain'};
1603: if (defined(&domain($udom,'primary'))) {
1604: $uhome=&domain($udom,'primary');
1605: } else {
1.874 albertel 1606: undef($uhome);
1.860 raeburn 1607: }
1608: } else {
1609: if (!$uhome) {
1610: if (defined(&domain($udom,'primary'))) {
1611: $uhome=&domain($udom,'primary');
1612: }
1613: }
1614: }
1615: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1616: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1617: my %returnhash;
1.875 albertel 1618: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1619: return %returnhash;
1620: }
1.806 raeburn 1621: my @pairs=split(/\&/,$rep);
1622: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1623: return @pairs;
1624: }
1625: my $i=0;
1626: foreach my $item (@$storearr) {
1627: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1628: $i++;
1629: }
1630: return %returnhash;
1631: } else {
1.880 banghart 1632: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1633: }
1634: }
1635:
1636: # -------------------------------------------- put items in domain db files
1637:
1638: sub put_dom {
1.860 raeburn 1639: my ($namespace,$storehash,$udom,$uhome)=@_;
1640: if (!$udom) {
1641: $udom=$env{'user.domain'};
1642: if (defined(&domain($udom,'primary'))) {
1643: $uhome=&domain($udom,'primary');
1644: } else {
1.874 albertel 1645: undef($uhome);
1.860 raeburn 1646: }
1647: } else {
1648: if (!$uhome) {
1649: if (defined(&domain($udom,'primary'))) {
1650: $uhome=&domain($udom,'primary');
1651: }
1652: }
1653: }
1654: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1655: my $items='';
1656: foreach my $item (keys(%$storehash)) {
1657: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1658: }
1659: $items=~s/\&$//;
1660: return &reply("putdom:$udom:$namespace:$items",$uhome);
1661: } else {
1.860 raeburn 1662: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1663: }
1664: }
1665:
1.1023 raeburn 1666: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1667: sub newput_dom {
1.1023 raeburn 1668: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1669: my $result;
1670: if (!$udom) {
1671: $udom=$env{'user.domain'};
1672: }
1.1023 raeburn 1673: if ($udom) {
1674: my $uname = &get_domainconfiguser($udom);
1675: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1676: }
1677: return $result;
1678: }
1679:
1.1023 raeburn 1680: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1681: sub del_dom {
1.1023 raeburn 1682: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1683: if (ref($storearr) eq 'ARRAY') {
1684: if (!$udom) {
1685: $udom=$env{'user.domain'};
1686: }
1.1023 raeburn 1687: if ($udom) {
1688: my $uname = &get_domainconfiguser($udom);
1689: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1690: }
1691: }
1692: }
1693:
1.1023 raeburn 1694: # ----------------------------------construct domainconfig user for a domain
1695: sub get_domainconfiguser {
1696: my ($udom) = @_;
1697: return $udom.'-domainconfig';
1698: }
1699:
1.837 raeburn 1700: sub retrieve_inst_usertypes {
1701: my ($udom) = @_;
1702: my (%returnhash,@order);
1.989 raeburn 1703: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1704: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1705: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1706: %returnhash = %{$domdefs{'inststatustypes'}};
1707: @order = @{$domdefs{'inststatusorder'}};
1708: } else {
1709: if (defined(&domain($udom,'primary'))) {
1710: my $uhome=&domain($udom,'primary');
1711: my $rep=&reply("inst_usertypes:$udom",$uhome);
1712: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1713: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1714: return (\%returnhash,\@order);
1715: }
1716: my ($hashitems,$orderitems) = split(/:/,$rep);
1717: my @pairs=split(/\&/,$hashitems);
1718: foreach my $item (@pairs) {
1719: my ($key,$value)=split(/=/,$item,2);
1720: $key = &unescape($key);
1721: next if ($key =~ /^error: 2 /);
1722: $returnhash{$key}=&thaw_unescape($value);
1723: }
1724: my @esc_order = split(/\&/,$orderitems);
1725: foreach my $item (@esc_order) {
1726: push(@order,&unescape($item));
1727: }
1728: } else {
1729: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1730: }
1731: }
1732: return (\%returnhash,\@order);
1733: }
1734:
1.868 raeburn 1735: sub is_domainimage {
1736: my ($url) = @_;
1737: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1738: if (&domain($1) ne '') {
1739: return '1';
1740: }
1741: }
1742: return;
1743: }
1744:
1.899 raeburn 1745: sub inst_directory_query {
1746: my ($srch) = @_;
1747: my $udom = $srch->{'srchdomain'};
1748: my %results;
1749: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1750: my $outcome;
1.899 raeburn 1751: if ($homeserver ne '') {
1.904 albertel 1752: my $queryid=&reply("querysend:instdirsearch:".
1753: &escape($srch->{'srchby'}).':'.
1754: &escape($srch->{'srchterm'}).':'.
1755: &escape($srch->{'srchtype'}),$homeserver);
1756: my $host=&hostname($homeserver);
1757: if ($queryid !~/^\Q$host\E\_/) {
1758: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1759: return;
1760: }
1761: my $response = &get_query_reply($queryid);
1762: my $maxtries = 5;
1763: my $tries = 1;
1764: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1765: $response = &get_query_reply($queryid);
1766: $tries ++;
1767: }
1768:
1769: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1770: if ($response eq 'unavailable') {
1771: $outcome = $response;
1772: } else {
1773: $outcome = 'ok';
1774: my @matches = split(/\n/,$response);
1775: foreach my $match (@matches) {
1776: my ($key,$value) = split(/=/,$match);
1777: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1778: }
1.899 raeburn 1779: }
1780: }
1781: }
1.909 raeburn 1782: return ($outcome,%results);
1.899 raeburn 1783: }
1784:
1785: sub usersearch {
1786: my ($srch) = @_;
1787: my $dom = $srch->{'srchdomain'};
1788: my %results;
1789: my %libserv = &all_library();
1790: my $query = 'usersearch';
1791: foreach my $tryserver (keys(%libserv)) {
1792: if (&host_domain($tryserver) eq $dom) {
1793: my $host=&hostname($tryserver);
1794: my $queryid=
1.911 raeburn 1795: &reply("querysend:".&escape($query).':'.
1796: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1797: &escape($srch->{'srchtype'}).':'.
1798: &escape($srch->{'srchterm'}),$tryserver);
1799: if ($queryid !~/^\Q$host\E\_/) {
1800: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1801: next;
1.899 raeburn 1802: }
1803: my $reply = &get_query_reply($queryid);
1804: my $maxtries = 1;
1805: my $tries = 1;
1806: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1807: $reply = &get_query_reply($queryid);
1808: $tries ++;
1809: }
1810: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1811: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1812: } else {
1.911 raeburn 1813: my @matches;
1814: if ($reply =~ /\n/) {
1815: @matches = split(/\n/,$reply);
1816: } else {
1817: @matches = split(/\&/,$reply);
1818: }
1.899 raeburn 1819: foreach my $match (@matches) {
1820: my ($uname,$udom,%userhash);
1.911 raeburn 1821: foreach my $entry (split(/:/,$match)) {
1822: my ($key,$value) =
1823: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1824: $userhash{$key} = $value;
1825: if ($key eq 'username') {
1826: $uname = $value;
1827: } elsif ($key eq 'domain') {
1828: $udom = $value;
1.911 raeburn 1829: }
1.899 raeburn 1830: }
1831: $results{$uname.':'.$udom} = \%userhash;
1832: }
1833: }
1834: }
1835: }
1836: return %results;
1837: }
1838:
1.912 raeburn 1839: sub get_instuser {
1840: my ($udom,$uname,$id) = @_;
1841: my $homeserver = &domain($udom,'primary');
1842: my ($outcome,%results);
1843: if ($homeserver ne '') {
1844: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1845: &escape($id).':'.&escape($udom),$homeserver);
1846: my $host=&hostname($homeserver);
1847: if ($queryid !~/^\Q$host\E\_/) {
1848: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1849: return;
1850: }
1851: my $response = &get_query_reply($queryid);
1852: my $maxtries = 5;
1853: my $tries = 1;
1854: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1855: $response = &get_query_reply($queryid);
1856: $tries ++;
1857: }
1858: if (!&error($response) && $response ne 'refused') {
1859: if ($response eq 'unavailable') {
1860: $outcome = $response;
1861: } else {
1862: $outcome = 'ok';
1863: my @matches = split(/\n/,$response);
1864: foreach my $match (@matches) {
1865: my ($key,$value) = split(/=/,$match);
1866: $results{&unescape($key)} = &thaw_unescape($value);
1867: }
1868: }
1869: }
1870: }
1871: my %userinfo;
1872: if (ref($results{$uname}) eq 'HASH') {
1873: %userinfo = %{$results{$uname}};
1874: }
1875: return ($outcome,%userinfo);
1876: }
1877:
1878: sub inst_rulecheck {
1.923 raeburn 1879: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1880: my %returnhash;
1881: if ($udom ne '') {
1882: if (ref($rules) eq 'ARRAY') {
1883: @{$rules} = map {&escape($_);} (@{$rules});
1884: my $rulestr = join(':',@{$rules});
1885: my $homeserver=&domain($udom,'primary');
1886: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1887: my $response;
1888: if ($item eq 'username') {
1889: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1890: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1891: $homeserver));
1.923 raeburn 1892: } elsif ($item eq 'id') {
1893: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1894: ':'.&escape($id).':'.$rulestr,
1895: $homeserver));
1.945 raeburn 1896: } elsif ($item eq 'selfcreate') {
1897: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1898: &escape($udom).':'.&escape($uname).
1899: ':'.$rulestr,$homeserver));
1.923 raeburn 1900: }
1.912 raeburn 1901: if ($response ne 'refused') {
1902: my @pairs=split(/\&/,$response);
1903: foreach my $item (@pairs) {
1904: my ($key,$value)=split(/=/,$item,2);
1905: $key = &unescape($key);
1906: next if ($key =~ /^error: 2 /);
1907: $returnhash{$key}=&thaw_unescape($value);
1908: }
1909: }
1910: }
1911: }
1912: }
1913: return %returnhash;
1914: }
1915:
1916: sub inst_userrules {
1.923 raeburn 1917: my ($udom,$check) = @_;
1.912 raeburn 1918: my (%ruleshash,@ruleorder);
1919: if ($udom ne '') {
1920: my $homeserver=&domain($udom,'primary');
1921: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1922: my $response;
1923: if ($check eq 'id') {
1924: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1925: $homeserver);
1.943 raeburn 1926: } elsif ($check eq 'email') {
1927: $response=&reply('instemailrules:'.&escape($udom),
1928: $homeserver);
1.923 raeburn 1929: } else {
1930: $response=&reply('instuserrules:'.&escape($udom),
1931: $homeserver);
1932: }
1.912 raeburn 1933: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1934: ($response ne 'unknown_cmd') &&
1.912 raeburn 1935: ($response ne 'no_such_host')) {
1936: my ($hashitems,$orderitems) = split(/:/,$response);
1937: my @pairs=split(/\&/,$hashitems);
1938: foreach my $item (@pairs) {
1939: my ($key,$value)=split(/=/,$item,2);
1940: $key = &unescape($key);
1941: next if ($key =~ /^error: 2 /);
1942: $ruleshash{$key}=&thaw_unescape($value);
1943: }
1944: my @esc_order = split(/\&/,$orderitems);
1945: foreach my $item (@esc_order) {
1946: push(@ruleorder,&unescape($item));
1947: }
1948: }
1949: }
1950: }
1951: return (\%ruleshash,\@ruleorder);
1952: }
1953:
1.976 raeburn 1954: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1955:
1956: sub get_domain_defaults {
1957: my ($domain) = @_;
1958: my $cachetime = 60*60*24;
1959: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1960: if (defined($cached)) {
1961: if (ref($result) eq 'HASH') {
1962: return %{$result};
1963: }
1964: }
1965: my %domdefaults;
1966: my %domconfig =
1.989 raeburn 1967: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1968: 'requestcourses','inststatus',
1.1183 raeburn 1969: 'coursedefaults','usersessions',
1970: 'requestauthor'],$domain);
1.943 raeburn 1971: if (ref($domconfig{'defaults'}) eq 'HASH') {
1972: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1973: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1974: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1975: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1976: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 1977: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.943 raeburn 1978: } else {
1979: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1980: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1981: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1982: }
1.976 raeburn 1983: if (ref($domconfig{'quotas'}) eq 'HASH') {
1984: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1985: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1986: } else {
1987: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1988: }
1.1177 raeburn 1989: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 1990: foreach my $item (@usertools) {
1991: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1992: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1993: }
1994: }
1995: }
1.985 raeburn 1996: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1997: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1998: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1999: }
2000: }
1.1183 raeburn 2001: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2002: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2003: }
1.989 raeburn 2004: if (ref($domconfig{'inststatus'}) eq 'HASH') {
2005: foreach my $item ('inststatustypes','inststatusorder') {
2006: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2007: }
2008: }
1.1047 raeburn 2009: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
2010: foreach my $item ('canuse_pdfforms') {
2011: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
2012: }
2013: }
1.1073 raeburn 2014: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2015: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2016: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2017: }
2018: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2019: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2020: }
2021: }
1.943 raeburn 2022: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
2023: $cachetime);
2024: return %domdefaults;
2025: }
2026:
1.344 www 2027: # --------------------------------------------------- Assign a key to a student
2028:
2029: sub assign_access_key {
1.364 www 2030: #
2031: # a valid key looks like uname:udom#comments
2032: # comments are being appended
2033: #
1.498 www 2034: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2035: $kdom=
1.620 albertel 2036: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2037: $knum=
1.620 albertel 2038: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2039: $cdom=
1.620 albertel 2040: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2041: $cnum=
1.620 albertel 2042: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2043: $udom=$env{'user.name'} unless (defined($udom));
2044: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2045: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2046: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2047: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2048: # assigned to this person
2049: # - this should not happen,
1.345 www 2050: # unless something went wrong
2051: # the first time around
2052: # ready to assign
1.364 www 2053: $logentry=$1.'; '.$logentry;
1.496 www 2054: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2055: $kdom,$knum) eq 'ok') {
1.345 www 2056: # key now belongs to user
1.346 www 2057: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2058: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2059: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2060: return 'ok';
2061: } else {
2062: return
2063: 'error: Count not permanently assign key, will need to be re-entered later.';
2064: }
2065: } else {
2066: return 'error: Could not assign key, try again later.';
2067: }
1.364 www 2068: } elsif (!$existing{$ckey}) {
1.345 www 2069: # the key does not exist
2070: return 'error: The key does not exist';
2071: } else {
2072: # the key is somebody else's
2073: return 'error: The key is already in use';
2074: }
1.344 www 2075: }
2076:
1.364 www 2077: # ------------------------------------------ put an additional comment on a key
2078:
2079: sub comment_access_key {
2080: #
2081: # a valid key looks like uname:udom#comments
2082: # comments are being appended
2083: #
2084: my ($ckey,$cdom,$cnum,$logentry)=@_;
2085: $cdom=
1.620 albertel 2086: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2087: $cnum=
1.620 albertel 2088: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2089: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2090: if ($existing{$ckey}) {
2091: $existing{$ckey}.='; '.$logentry;
2092: # ready to assign
1.367 www 2093: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2094: $cdom,$cnum) eq 'ok') {
2095: return 'ok';
2096: } else {
2097: return 'error: Count not store comment.';
2098: }
2099: } else {
2100: # the key does not exist
2101: return 'error: The key does not exist';
2102: }
2103: }
2104:
1.344 www 2105: # ------------------------------------------------------ Generate a set of keys
2106:
2107: sub generate_access_keys {
1.364 www 2108: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2109: $cdom=
1.620 albertel 2110: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2111: $cnum=
1.620 albertel 2112: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2113: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2114: unless (($cdom) && ($cnum)) { return 0; }
2115: if ($number>10000) { return 0; }
2116: sleep(2); # make sure don't get same seed twice
2117: srand(time()^($$+($$<<15))); # from "Programming Perl"
2118: my $total=0;
2119: for (my $i=1;$i<=$number;$i++) {
2120: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2121: sprintf("%lx",int(100000*rand)).'-'.
2122: sprintf("%lx",int(100000*rand));
2123: $newkey=~s/1/g/g; # folks mix up 1 and l
2124: $newkey=~s/0/h/g; # and also 0 and O
2125: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2126: if ($existing{$newkey}) {
2127: $i--;
2128: } else {
1.364 www 2129: if (&put('accesskeys',
2130: { $newkey => '# generated '.localtime().
1.620 albertel 2131: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2132: '; '.$logentry },
2133: $cdom,$cnum) eq 'ok') {
1.344 www 2134: $total++;
2135: }
2136: }
2137: }
1.620 albertel 2138: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2139: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2140: return $total;
2141: }
2142:
2143: # ------------------------------------------------------- Validate an accesskey
2144:
2145: sub validate_access_key {
2146: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2147: $cdom=
1.620 albertel 2148: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2149: $cnum=
1.620 albertel 2150: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2151: $udom=$env{'user.domain'} unless (defined($udom));
2152: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2153: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2154: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2155: }
2156:
2157: # ------------------------------------- Find the section of student in a course
1.652 albertel 2158: sub devalidate_getsection_cache {
2159: my ($udom,$unam,$courseid)=@_;
2160: my $hashid="$udom:$unam:$courseid";
2161: &devalidate_cache_new('getsection',$hashid);
2162: }
1.298 matthew 2163:
1.815 albertel 2164: sub courseid_to_courseurl {
2165: my ($courseid) = @_;
2166: #already url style courseid
2167: return $courseid if ($courseid =~ m{^/});
2168:
2169: if (exists($env{'course.'.$courseid.'.num'})) {
2170: my $cnum = $env{'course.'.$courseid.'.num'};
2171: my $cdom = $env{'course.'.$courseid.'.domain'};
2172: return "/$cdom/$cnum";
2173: }
2174:
2175: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2176: if (exists($courseinfo{'num'})) {
2177: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2178: }
2179:
2180: return undef;
2181: }
2182:
1.298 matthew 2183: sub getsection {
2184: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2185: my $cachetime=1800;
1.551 albertel 2186:
2187: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2188: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2189: if (defined($cached)) { return $result; }
2190:
1.298 matthew 2191: my %Pending;
2192: my %Expired;
2193: #
2194: # Each role can either have not started yet (pending), be active,
2195: # or have expired.
2196: #
2197: # If there is an active role, we are done.
2198: #
2199: # If there is more than one role which has not started yet,
2200: # choose the one which will start sooner
2201: # If there is one role which has not started yet, return it.
2202: #
2203: # If there is more than one expired role, choose the one which ended last.
2204: # If there is a role which has expired, return it.
2205: #
1.815 albertel 2206: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2207: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2208: foreach my $key (keys(%roleshash)) {
1.479 albertel 2209: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2210: my $section=$1;
2211: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2212: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2213: my $now=time;
1.548 albertel 2214: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2215: $Expired{$end}=$section;
2216: next;
2217: }
1.548 albertel 2218: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2219: $Pending{$start}=$section;
2220: next;
2221: }
1.599 albertel 2222: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2223: }
2224: #
2225: # Presumedly there will be few matching roles from the above
2226: # loop and the sorting time will be negligible.
2227: if (scalar(keys(%Pending))) {
2228: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2229: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2230: }
2231: if (scalar(keys(%Expired))) {
2232: my @sorted = sort {$a <=> $b} keys(%Expired);
2233: my $time = pop(@sorted);
1.599 albertel 2234: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2235: }
1.599 albertel 2236: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2237: }
1.70 www 2238:
1.599 albertel 2239: sub save_cache {
2240: &purge_remembered();
1.722 albertel 2241: #&Apache::loncommon::validate_page();
1.620 albertel 2242: undef(%env);
1.780 albertel 2243: undef($env_loaded);
1.599 albertel 2244: }
1.452 albertel 2245:
1.599 albertel 2246: my $to_remember=-1;
2247: my %remembered;
2248: my %accessed;
2249: my $kicks=0;
2250: my $hits=0;
1.849 albertel 2251: sub make_key {
2252: my ($name,$id) = @_;
1.872 albertel 2253: if (length($id) > 65
2254: && length(&escape($id)) > 200) {
2255: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2256: }
1.849 albertel 2257: return &escape($name.':'.$id);
2258: }
2259:
1.599 albertel 2260: sub devalidate_cache_new {
2261: my ($name,$id,$debug) = @_;
2262: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 2263: $id=&make_key($name,$id);
1.599 albertel 2264: $memcache->delete($id);
2265: delete($remembered{$id});
2266: delete($accessed{$id});
2267: }
2268:
2269: sub is_cached_new {
2270: my ($name,$id,$debug) = @_;
1.849 albertel 2271: $id=&make_key($name,$id);
1.599 albertel 2272: if (exists($remembered{$id})) {
1.1133 foxr 2273: if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
1.599 albertel 2274: $accessed{$id}=[&gettimeofday()];
2275: $hits++;
2276: return ($remembered{$id},1);
2277: }
2278: my $value = $memcache->get($id);
2279: if (!(defined($value))) {
2280: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2281: return (undef,undef);
1.416 albertel 2282: }
1.599 albertel 2283: if ($value eq '__undef__') {
2284: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2285: $value=undef;
2286: }
2287: &make_room($id,$value,$debug);
2288: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2289: return ($value,1);
2290: }
2291:
2292: sub do_cache_new {
2293: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 2294: $id=&make_key($name,$id);
1.599 albertel 2295: my $setvalue=$value;
2296: if (!defined($setvalue)) {
2297: $setvalue='__undef__';
2298: }
1.623 albertel 2299: if (!defined($time) ) {
2300: $time=600;
2301: }
1.599 albertel 2302: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2303: my $result = $memcache->set($id,$setvalue,$time);
2304: if (! $result) {
1.872 albertel 2305: &logthis("caching of id -> $id failed");
1.910 albertel 2306: $memcache->disconnect_all();
1.872 albertel 2307: }
1.600 albertel 2308: # need to make a copy of $value
1.919 albertel 2309: &make_room($id,$value,$debug);
1.599 albertel 2310: return $value;
2311: }
2312:
2313: sub make_room {
2314: my ($id,$value,$debug)=@_;
1.919 albertel 2315:
2316: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
2317: : $value;
1.599 albertel 2318: if ($to_remember<0) { return; }
2319: $accessed{$id}=[&gettimeofday()];
2320: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2321: my $to_kick;
2322: my $max_time=0;
2323: foreach my $other (keys(%accessed)) {
2324: if (&tv_interval($accessed{$other}) > $max_time) {
2325: $to_kick=$other;
2326: $max_time=&tv_interval($accessed{$other});
2327: }
2328: }
2329: delete($remembered{$to_kick});
2330: delete($accessed{$to_kick});
2331: $kicks++;
2332: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2333: return;
2334: }
2335:
1.599 albertel 2336: sub purge_remembered {
1.604 albertel 2337: #&logthis("Tossing ".scalar(keys(%remembered)));
2338: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2339: undef(%remembered);
2340: undef(%accessed);
1.428 albertel 2341: }
1.70 www 2342: # ------------------------------------- Read an entry from a user's environment
2343:
2344: sub userenvironment {
2345: my ($udom,$unam,@what)=@_;
1.976 raeburn 2346: my $items;
2347: foreach my $item (@what) {
2348: $items.=&escape($item).'&';
2349: }
2350: $items=~s/\&$//;
1.70 www 2351: my %returnhash=();
1.1009 raeburn 2352: my $uhome = &homeserver($unam,$udom);
2353: unless ($uhome eq 'no_host') {
2354: my @answer=split(/\&/,
2355: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2356: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2357: return %returnhash;
2358: }
1.1009 raeburn 2359: my $i;
2360: for ($i=0;$i<=$#what;$i++) {
2361: $returnhash{$what[$i]}=&unescape($answer[$i]);
2362: }
1.70 www 2363: }
2364: return %returnhash;
1.1 albertel 2365: }
2366:
1.617 albertel 2367: # ---------------------------------------------------------- Get a studentphoto
2368: sub studentphoto {
2369: my ($udom,$unam,$ext) = @_;
2370: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2371: if (defined($env{'request.course.id'})) {
1.708 raeburn 2372: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2373: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2374: return(&retrievestudentphoto($udom,$unam,$ext));
2375: } else {
2376: my ($result,$perm_reqd)=
1.707 albertel 2377: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2378: if ($result eq 'ok') {
2379: if (!($perm_reqd eq 'yes')) {
2380: return(&retrievestudentphoto($udom,$unam,$ext));
2381: }
2382: }
2383: }
2384: }
2385: } else {
2386: my ($result,$perm_reqd) =
1.707 albertel 2387: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2388: if ($result eq 'ok') {
2389: if (!($perm_reqd eq 'yes')) {
2390: return(&retrievestudentphoto($udom,$unam,$ext));
2391: }
2392: }
2393: }
2394: return '/adm/lonKaputt/lonlogo_broken.gif';
2395: }
2396:
2397: sub retrievestudentphoto {
2398: my ($udom,$unam,$ext,$type) = @_;
2399: my $home=&Apache::lonnet::homeserver($unam,$udom);
2400: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2401: if ($ret eq 'ok') {
2402: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2403: if ($type eq 'thumbnail') {
2404: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2405: }
2406: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2407: return $tokenurl;
2408: } else {
2409: if ($type eq 'thumbnail') {
2410: return '/adm/lonKaputt/genericstudent_tn.gif';
2411: } else {
2412: return '/adm/lonKaputt/lonlogo_broken.gif';
2413: }
1.617 albertel 2414: }
2415: }
2416:
1.263 www 2417: # -------------------------------------------------------------------- New chat
2418:
2419: sub chatsend {
1.724 raeburn 2420: my ($newentry,$anon,$group)=@_;
1.620 albertel 2421: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2422: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2423: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2424: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2425: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2426: &escape($newentry)).':'.$group,$chome);
1.292 www 2427: }
2428:
2429: # ------------------------------------------ Find current version of a resource
2430:
2431: sub getversion {
2432: my $fname=&clutter(shift);
1.1189 raeburn 2433: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2434: return ¤tversion(&filelocation('',$fname));
2435: }
2436:
2437: sub currentversion {
2438: my $fname=shift;
2439: my $author=$fname;
2440: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2441: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2442: my $home=&homeserver($uname,$udom);
1.292 www 2443: if ($home eq 'no_host') {
2444: return -1;
2445: }
1.1112 www 2446: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2447: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2448: return -1;
2449: }
1.1112 www 2450: return $answer;
1.263 www 2451: }
2452:
1.1111 www 2453: #
2454: # Return special version number of resource if set by override, empty otherwise
2455: #
2456: sub usedversion {
2457: my $fname=shift;
2458: unless ($fname) { $fname=$env{'request.uri'}; }
2459: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2460: if ($urlversion) { return $urlversion; }
2461: return '';
2462: }
2463:
1.1 albertel 2464: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2465:
1.1 albertel 2466: sub subscribe {
2467: my $fname=shift;
1.761 raeburn 2468: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2469: $fname=~s/[\n\r]//g;
1.1 albertel 2470: my $author=$fname;
2471: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2472: my ($udom,$uname)=split(/\//,$author);
2473: my $home=homeserver($uname,$udom);
1.335 albertel 2474: if ($home eq 'no_host') {
2475: return 'not_found';
1.1 albertel 2476: }
2477: my $answer=reply("sub:$fname",$home);
1.64 www 2478: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2479: $answer.=' by '.$home;
2480: }
1.1 albertel 2481: return $answer;
2482: }
2483:
1.8 www 2484: # -------------------------------------------------------------- Replicate file
2485:
2486: sub repcopy {
2487: my $filename=shift;
1.23 www 2488: $filename=~s/\/+/\//g;
1.1142 raeburn 2489: my $londocroot = $perlvar{'lonDocRoot'};
2490: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2491: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2492: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2493: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2494: return &repcopy_userfile($filename);
2495: }
1.532 albertel 2496: $filename=~s/[\n\r]//g;
1.8 www 2497: my $transname="$filename.in.transfer";
1.828 www 2498: # FIXME: this should flock
1.607 raeburn 2499: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2500: my $remoteurl=subscribe($filename);
1.64 www 2501: if ($remoteurl =~ /^con_lost by/) {
2502: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2503: return 'unavailable';
1.8 www 2504: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2505: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2506: return 'not_found';
1.64 www 2507: } elsif ($remoteurl =~ /^rejected by/) {
2508: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2509: return 'forbidden';
1.20 www 2510: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2511: return 'ok';
1.8 www 2512: } else {
1.290 www 2513: my $author=$filename;
2514: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2515: my ($udom,$uname)=split(/\//,$author);
2516: my $home=homeserver($uname,$udom);
2517: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2518: my @parts=split(/\//,$filename);
2519: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2520: if ($path ne "$londocroot/res") {
1.8 www 2521: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2522: return 'bad_request';
1.8 www 2523: }
2524: my $count;
2525: for ($count=5;$count<$#parts;$count++) {
2526: $path.="/$parts[$count]";
2527: if ((-e $path)!=1) {
2528: mkdir($path,0777);
2529: }
2530: }
2531: my $ua=new LWP::UserAgent;
2532: my $request=new HTTP::Request('GET',"$remoteurl");
2533: my $response=$ua->request($request,$transname);
2534: if ($response->is_error()) {
2535: unlink($transname);
2536: my $message=$response->status_line;
1.672 albertel 2537: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2538: ." LWP get: $message: $filename</font>");
1.607 raeburn 2539: return 'unavailable';
1.8 www 2540: } else {
1.16 www 2541: if ($remoteurl!~/\.meta$/) {
2542: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2543: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2544: if ($mresponse->is_error()) {
2545: unlink($filename.'.meta');
2546: &logthis(
1.672 albertel 2547: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2548: }
2549: }
1.8 www 2550: rename($transname,$filename);
1.607 raeburn 2551: return 'ok';
1.8 www 2552: }
1.290 www 2553: }
1.8 www 2554: }
1.330 www 2555: }
2556:
2557: # ------------------------------------------------ Get server side include body
2558: sub ssi_body {
1.381 albertel 2559: my ($filelink,%form)=@_;
1.606 matthew 2560: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2561: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2562: }
1.953 www 2563: my $output='';
2564: my $response;
1.980 raeburn 2565: if ($filelink=~/^https?\:/) {
1.954 raeburn 2566: ($output,$response)=&externalssi($filelink);
1.953 www 2567: } else {
1.1004 droeschl 2568: $filelink .= $filelink=~/\?/ ? '&' : '?';
2569: $filelink .= 'inhibitmenu=yes';
1.953 www 2570: ($output,$response)=&ssi($filelink,%form);
2571: }
1.778 albertel 2572: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2573: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2574: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2575: if (wantarray) {
2576: return ($output, $response);
2577: } else {
2578: return $output;
2579: }
1.8 www 2580: }
2581:
1.15 www 2582: # --------------------------------------------------------- Server Side Include
2583:
1.782 albertel 2584: sub absolute_url {
2585: my ($host_name) = @_;
2586: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2587: if ($host_name eq '') {
2588: $host_name = $ENV{'SERVER_NAME'};
2589: }
2590: return $protocol.$host_name;
2591: }
2592:
1.942 foxr 2593: #
2594: # Server side include.
2595: # Parameters:
2596: # fn Possibly encrypted resource name/id.
2597: # form Hash that describes how the rendering should be done
2598: # and other things.
1.944 foxr 2599: # Returns:
1.950 raeburn 2600: # Scalar context: The content of the response.
2601: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2602: #
1.15 www 2603: sub ssi {
2604:
1.944 foxr 2605: my ($fn,%form)=@_;
1.15 www 2606: my $ua=new LWP::UserAgent;
1.23 www 2607: my $request;
1.711 albertel 2608:
2609: $form{'no_update_last_known'}=1;
1.895 albertel 2610: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2611: if (%form) {
1.782 albertel 2612: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2613: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2614: } else {
1.782 albertel 2615: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2616: }
2617:
1.15 www 2618: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1173 foxr 2619: my $response= $ua->request($request);
1.1182 foxr 2620: my $content = $response->content;
2621:
2622:
1.944 foxr 2623: if (wantarray) {
1.1173 foxr 2624: return ($content, $response);
1.944 foxr 2625: } else {
1.1173 foxr 2626: return $content;
1.942 foxr 2627: }
1.324 www 2628: }
2629:
2630: sub externalssi {
2631: my ($url)=@_;
2632: my $ua=new LWP::UserAgent;
2633: my $request=new HTTP::Request('GET',$url);
2634: my $response=$ua->request($request);
1.954 raeburn 2635: if (wantarray) {
2636: return ($response->content, $response);
2637: } else {
2638: return $response->content;
2639: }
1.15 www 2640: }
1.254 www 2641:
1.492 albertel 2642: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2643:
2644: sub allowuploaded {
2645: my ($srcurl,$url)=@_;
2646: $url=&clutter(&declutter($url));
2647: my $dir=$url;
2648: $dir=~s/\/[^\/]+$//;
2649: my %httpref=();
2650: my $httpurl=&hreflocation('',$url);
2651: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2652: &Apache::lonnet::appenv(\%httpref);
1.254 www 2653: }
1.477 raeburn 2654:
1.1193 raeburn 2655: #
2656: # Determine if the current user should be able to edit a particular resource,
2657: # when viewing in course context.
2658: # (a) When viewing resource used to determine if "Edit" item is included in
2659: # Functions.
2660: # (b) When displaying folder contents in course editor, used to determine if
2661: # "Edit" link will be displayed alongside resource.
2662: #
1.1196 raeburn 2663: # input: six args -- filename (decluttered), course number, course domain,
2664: # url, symb (if registered) and group (if this is a group
2665: # item -- e.g., bulletin board, group page etc.).
2666: # output: array of five scalars --
1.1193 raeburn 2667: # $cfile -- url for file editing if editable on current server
2668: # $home -- homeserver of resource (i.e., for author if published,
2669: # or course if uploaded.).
2670: # $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 2671: # $forceedit -- 1 if icon/link should be to go to edit mode
2672: # $forceview -- 1 if icon/link should be to go to view mode
1.1193 raeburn 2673: #
2674:
2675: sub can_edit_resource {
1.1194 raeburn 2676: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
2677: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
2678: #
2679: # For aboutme pages user can only edit his/her own.
2680: #
1.1199 raeburn 2681: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
1.1194 raeburn 2682: my ($sdom,$sname) = ($1,$2);
2683: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
2684: $home = $env{'user.home'};
2685: $cfile = $resurl;
2686: if ($env{'form.forceedit'}) {
2687: $forceview = 1;
2688: } else {
2689: $forceedit = 1;
2690: }
2691: return ($cfile,$home,$switchserver,$forceedit,$forceview);
2692: } else {
2693: return;
2694: }
2695: }
2696:
2697: if ($env{'request.course.id'}) {
2698: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
2699: if ($group ne '') {
2700: # if this is a group homepage or group bulletin board, check group privs
2701: my $allowed = 0;
1.1197 raeburn 2702: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
2703: if ((&allowed('mdg',$env{'request.course.id'}.
1.1198 raeburn 2704: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
1.1194 raeburn 2705: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
2706: $allowed = 1;
2707: }
1.1197 raeburn 2708: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
2709: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
2710: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
1.1194 raeburn 2711: $allowed = 1;
2712: }
2713: }
2714: if ($allowed) {
2715: $home=&homeserver($cnum,$cdom);
2716: if ($env{'form.forceedit'}) {
2717: $forceview = 1;
2718: } else {
2719: $forceedit = 1;
2720: }
2721: $cfile = $resurl;
2722: } else {
2723: return;
2724: }
2725: } else {
1.1208 raeburn 2726: if ($resurl =~ m{^/?adm/viewclasslist$}) {
2727: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
2728: return;
2729: }
2730: } elsif (!$crsedit) {
1.1194 raeburn 2731: #
2732: # No edit allowed where CC has switched to student role.
2733: #
2734: return;
2735: }
2736: }
2737: }
2738:
1.1193 raeburn 2739: if ($file ne '') {
2740: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
1.1194 raeburn 2741: if (&is_course_upload($file,$cnum,$cdom)) {
2742: $uploaded = 1;
2743: $incourse = 1;
1.1193 raeburn 2744: if ($file =~/\.(htm|html|css|js|txt)$/) {
2745: $cfile = &hreflocation('',$file);
1.1201 raeburn 2746: if ($env{'form.forceedit'}) {
2747: $forceview = 1;
2748: } else {
2749: $forceedit = 1;
2750: }
1.1194 raeburn 2751: }
2752: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
2753: $incourse = 1;
2754: if ($env{'form.forceedit'}) {
2755: $forceview = 1;
2756: } else {
2757: $forceedit = 1;
2758: }
2759: $cfile = $resurl;
2760: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
2761: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
2762: $incourse = 1;
2763: if ($env{'form.forceedit'}) {
2764: $forceview = 1;
2765: } else {
2766: $forceedit = 1;
2767: }
2768: $cfile = $resurl;
1.1199 raeburn 2769: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
1.1194 raeburn 2770: $incourse = 1;
2771: $cfile = $resurl.'/smpedit';
1.1199 raeburn 2772: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
1.1194 raeburn 2773: $incourse = 1;
1.1199 raeburn 2774: if ($env{'form.forceedit'}) {
2775: $forceview = 1;
2776: } else {
2777: $forceedit = 1;
2778: }
2779: $cfile = $resurl;
1.1208 raeburn 2780: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
2781: $incourse = 1;
2782: if ($env{'form.forceedit'}) {
2783: $forceview = 1;
2784: } else {
2785: $forceedit = 1;
2786: }
2787: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1194 raeburn 2788: }
2789: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
2790: my $template = '/res/lib/templates/simpleproblem.problem';
2791: if (&is_on_map($template)) {
2792: $incourse = 1;
2793: $forceview = 1;
2794: $cfile = $template;
1.1193 raeburn 2795: }
1.1199 raeburn 2796: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
2797: $incourse = 1;
2798: if ($env{'form.forceedit'}) {
2799: $forceview = 1;
2800: } else {
2801: $forceedit = 1;
2802: }
2803: $cfile = $resurl;
2804: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
2805: $incourse = 1;
2806: $forceview = 1;
2807: if ($symb) {
2808: my ($map,$id,$res)=&decode_symb($symb);
2809: $env{'request.symb'} = $symb;
2810: $cfile = &clutter($res);
2811: } else {
2812: $cfile = $env{'form.suppurl'};
2813: $cfile =~ s{^http://}{};
2814: $cfile = '/adm/wrapper/ext/'.$cfile;
2815: }
1.1193 raeburn 2816: }
2817: }
1.1194 raeburn 2818: if ($uploaded || $incourse) {
2819: $home=&homeserver($cnum,$cdom);
1.1207 raeburn 2820: } elsif ($file !~ m{/$}) {
1.1193 raeburn 2821: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
2822: $file=~s{^($match_domain/$match_username)}{/priv/$1};
2823: # Check that the user has permission to edit this resource
2824: my $setpriv = 1;
2825: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
2826: if (defined($cfudom)) {
2827: $home=&homeserver($cfuname,$cfudom);
2828: $cfile=$file;
2829: }
2830: }
1.1194 raeburn 2831: if (($cfile ne '') && (!$incourse || $uploaded) &&
2832: (($home ne '') && ($home ne 'no_host'))) {
1.1193 raeburn 2833: my @ids=¤t_machine_ids();
2834: unless (grep(/^\Q$home\E$/,@ids)) {
2835: $switchserver=1;
2836: }
2837: }
2838: }
1.1194 raeburn 2839: return ($cfile,$home,$switchserver,$forceedit,$forceview);
1.1193 raeburn 2840: }
2841:
2842: sub is_course_upload {
2843: my ($file,$cnum,$cdom) = @_;
2844: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
2845: $uploadpath =~ s{^\/}{};
1.1201 raeburn 2846: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
2847: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
1.1193 raeburn 2848: return 1;
2849: }
2850: return;
2851: }
2852:
1.1194 raeburn 2853: sub in_course {
1.1195 raeburn 2854: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
2855: if ($hideprivileged) {
2856: my $skipuser;
2857: if (&privileged($uname,$udom)) {
2858: $skipuser = 1;
2859: my %coursehash = &coursedescription($cdom.'_'.$cnum);
2860: if ($coursehash{'nothideprivileged'}) {
2861: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2862: my $user;
2863: if ($item =~ /:/) {
2864: $user = $item;
2865: } else {
2866: $user = join(':',split(/[\@]/,$item));
2867: }
2868: if ($user eq $uname.':'.$udom) {
2869: undef($skipuser);
2870: last;
2871: }
2872: }
2873: }
2874: if ($skipuser) {
2875: return 0;
2876: }
2877: }
2878: }
1.1194 raeburn 2879: $type ||= 'any';
2880: if (!defined($cdom) || !defined($cnum)) {
2881: my $cid = $env{'request.course.id'};
2882: $cdom = $env{'course.'.$cid.'.domain'};
2883: $cnum = $env{'course.'.$cid.'.num'};
2884: }
2885: my $typesref;
1.1195 raeburn 2886: if (($type eq 'any') || ($type eq 'all')) {
1.1194 raeburn 2887: $typesref = ['active','previous','future'];
2888: } elsif ($type eq 'previous' || $type eq 'future') {
2889: $typesref = [$type];
2890: }
2891: my %roles = &get_my_roles($uname,$udom,'userroles',
2892: $typesref,undef,[$cdom]);
2893: my ($tmp) = keys(%roles);
2894: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
2895: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
2896: if (@course_roles > 0) {
2897: return 1;
2898: }
2899: return 0;
2900: }
2901:
1.478 albertel 2902: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2903: # input: action, courseID, current domain, intended
1.637 raeburn 2904: # path to file, source of file, instruction to parse file for objects,
2905: # ref to hash for embedded objects,
2906: # ref to hash for codebase of java objects.
1.1095 raeburn 2907: # reference to scalar to accommodate mime type determined
2908: # from File::MMagic if $parser = parse.
1.637 raeburn 2909: #
1.485 raeburn 2910: # output: url to file (if action was uploaddoc),
2911: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2912: #
1.478 albertel 2913: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2914: # course.
1.477 raeburn 2915: #
1.478 albertel 2916: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2917: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2918: # course's home server.
1.477 raeburn 2919: #
1.478 albertel 2920: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2921: # be copied from $source (current location) to
2922: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2923: # and will then be copied to
2924: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2925: # course's home server.
1.485 raeburn 2926: #
1.481 raeburn 2927: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2928: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2929: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2930: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2931: # in course's home server.
1.637 raeburn 2932: #
1.477 raeburn 2933:
2934: sub process_coursefile {
1.1095 raeburn 2935: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
2936: $mimetype)=@_;
1.477 raeburn 2937: my $fetchresult;
1.638 albertel 2938: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2939: if ($action eq 'propagate') {
1.638 albertel 2940: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2941: $home);
1.481 raeburn 2942: } else {
1.477 raeburn 2943: my $fpath = '';
2944: my $fname = $file;
1.478 albertel 2945: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2946: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2947: my $filepath = &build_filepath($fpath);
1.481 raeburn 2948: if ($action eq 'copy') {
2949: if ($source eq '') {
2950: $fetchresult = 'no source file';
2951: return $fetchresult;
2952: } else {
2953: my $destination = $filepath.'/'.$fname;
2954: rename($source,$destination);
2955: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2956: $home);
1.481 raeburn 2957: }
2958: } elsif ($action eq 'uploaddoc') {
2959: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2960: print $fh $env{'form.'.$source};
1.481 raeburn 2961: close($fh);
1.637 raeburn 2962: if ($parser eq 'parse') {
1.1024 raeburn 2963: my $mm = new File::MMagic;
1.1095 raeburn 2964: my $type = $mm->checktype_filename($filepath.'/'.$fname);
2965: if ($type eq 'text/html') {
1.1024 raeburn 2966: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2967: unless ($parse_result eq 'ok') {
2968: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2969: }
1.637 raeburn 2970: }
1.1095 raeburn 2971: if (ref($mimetype)) {
2972: $$mimetype = $type;
2973: }
1.637 raeburn 2974: }
1.477 raeburn 2975: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2976: $home);
1.481 raeburn 2977: if ($fetchresult eq 'ok') {
2978: return '/uploaded/'.$fpath.'/'.$fname;
2979: } else {
2980: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2981: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2982: return '/adm/notfound.html';
2983: }
1.477 raeburn 2984: }
2985: }
1.485 raeburn 2986: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2987: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2988: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2989: }
2990: return $fetchresult;
2991: }
2992:
1.637 raeburn 2993: sub build_filepath {
2994: my ($fpath) = @_;
2995: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2996: unless ($fpath eq '') {
2997: my @parts=split('/',$fpath);
2998: foreach my $part (@parts) {
2999: $filepath.= '/'.$part;
3000: if ((-e $filepath)!=1) {
3001: mkdir($filepath,0777);
3002: }
3003: }
3004: }
3005: return $filepath;
3006: }
3007:
3008: sub store_edited_file {
1.638 albertel 3009: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 3010: my $file = $primary_url;
3011: $file =~ s#^/uploaded/$docudom/$docuname/##;
3012: my $fpath = '';
3013: my $fname = $file;
3014: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3015: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3016: my $filepath = &build_filepath($fpath);
3017: open(my $fh,'>'.$filepath.'/'.$fname);
3018: print $fh $content;
3019: close($fh);
1.638 albertel 3020: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3021: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3022: $home);
1.637 raeburn 3023: if ($$fetchresult eq 'ok') {
3024: return '/uploaded/'.$fpath.'/'.$fname;
3025: } else {
1.638 albertel 3026: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3027: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3028: return '/adm/notfound.html';
3029: }
3030: }
3031:
1.531 albertel 3032: sub clean_filename {
1.831 albertel 3033: my ($fname,$args)=@_;
1.315 www 3034: # Replace Windows backslashes by forward slashes
1.257 www 3035: $fname=~s/\\/\//g;
1.831 albertel 3036: if (!$args->{'keep_path'}) {
3037: # Get rid of everything but the actual filename
3038: $fname=~s/^.*\/([^\/]+)$/$1/;
3039: }
1.315 www 3040: # Replace spaces by underscores
3041: $fname=~s/\s+/\_/g;
3042: # Replace all other weird characters by nothing
1.831 albertel 3043: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3044: # Replace all .\d. sequences with _\d. so they no longer look like version
3045: # numbers
3046: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3047: return $fname;
3048: }
1.1051 raeburn 3049: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3050: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3051: # image with the same aspect ratio as the original, but with dimensions which do
3052: # not exceed $resizewidth and $resizeheight.
3053:
1.984 neumanie 3054: sub resizeImage {
1.1051 raeburn 3055: my ($img_path,$resizewidth,$resizeheight) = @_;
3056: my $ima = Image::Magick->new;
3057: my $resized;
3058: if (-e $img_path) {
3059: $ima->Read($img_path);
3060: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3061: my $width = $ima->Get('width');
3062: my $height = $ima->Get('height');
3063: if ($width > $resizewidth) {
3064: my $factor = $width/$resizewidth;
3065: my $newheight = $height/$factor;
3066: $ima->Scale(width=>$resizewidth,height=>$newheight);
3067: $resized = 1;
3068: }
3069: }
3070: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3071: my $width = $ima->Get('width');
3072: my $height = $ima->Get('height');
3073: if ($height > $resizeheight) {
3074: my $factor = $height/$resizeheight;
3075: my $newwidth = $width/$factor;
3076: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3077: $resized = 1;
3078: }
3079: }
3080: if ($resized) {
3081: $ima->Write($img_path);
3082: }
3083: }
3084: return;
1.977 amueller 3085: }
3086:
1.608 albertel 3087: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3088: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3089: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3090: # $context - possible values: coursedoc, existingfile, overwrite,
3091: # canceloverwrite, or ''.
3092: # if 'coursedoc': upload to the current course
3093: # if 'existingfile': write file to tmp/overwrites directory
3094: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3095: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3096: # $subdir - directory in userfile to store the file into
1.858 raeburn 3097: # $parser - instruction to parse file for objects ($parser = parse)
3098: # $allfiles - reference to hash for embedded objects
3099: # $codebase - reference to hash for codebase of java objects
3100: # $desuname - username for permanent storage of uploaded file
3101: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3102: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3103: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3104: # $resizewidth - width (pixels) to which to resize uploaded image
3105: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3106: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3107: # from File::MMagic.
1.858 raeburn 3108: #
1.686 albertel 3109: # output: url of file in userspace, or error: <message>
3110: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3111:
1.531 albertel 3112: sub userfileupload {
1.1090 raeburn 3113: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3114: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3115: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3116: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3117: $fname=&clean_filename($fname);
1.1090 raeburn 3118: # See if there is anything left
1.257 www 3119: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3120: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3121: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3122: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3123: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3124: my $now = time;
1.1090 raeburn 3125: my $filepath;
1.1095 raeburn 3126: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3127: $filepath = 'tmp/helprequests/'.$now;
3128: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3129: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3130: '_'.$env{'user.domain'}.'/pending';
3131: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3132: my ($docuname,$docudom);
3133: if ($destudom) {
3134: $docudom = $destudom;
3135: } else {
3136: $docudom = $env{'user.domain'};
3137: }
3138: if ($destuname) {
3139: $docuname = $destuname;
3140: } else {
3141: $docuname = $env{'user.name'};
3142: }
3143: if (exists($env{'form.group'})) {
3144: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3145: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3146: }
3147: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3148: if ($context eq 'canceloverwrite') {
3149: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3150: if (-e $tempfile) {
3151: my @info = stat($tempfile);
3152: if ($info[9] eq $env{'form.timestamp'}) {
3153: unlink($tempfile);
3154: }
3155: }
3156: return;
1.523 raeburn 3157: }
3158: }
1.1090 raeburn 3159: # Create the directory if not present
1.741 raeburn 3160: my @parts=split(/\//,$filepath);
3161: my $fullpath = $perlvar{'lonDaemons'};
3162: for (my $i=0;$i<@parts;$i++) {
3163: $fullpath .= '/'.$parts[$i];
3164: if ((-e $fullpath)!=1) {
3165: mkdir($fullpath,0777);
3166: }
3167: }
3168: open(my $fh,'>'.$fullpath.'/'.$fname);
3169: print $fh $env{'form.'.$formname};
3170: close($fh);
1.1090 raeburn 3171: if ($context eq 'existingfile') {
3172: my @info = stat($fullpath.'/'.$fname);
3173: return ($fullpath.'/'.$fname,$info[9]);
3174: } else {
3175: return $fullpath.'/'.$fname;
3176: }
1.523 raeburn 3177: }
1.995 raeburn 3178: if ($subdir eq 'scantron') {
3179: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3180: } else {
1.995 raeburn 3181: $fname="$subdir/$fname";
3182: }
1.1090 raeburn 3183: if ($context eq 'coursedoc') {
1.638 albertel 3184: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3185: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3186: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3187: return &finishuserfileupload($docuname,$docudom,
3188: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3189: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3190: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3191: } else {
1.620 albertel 3192: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 3193: return &process_coursefile('uploaddoc',$docuname,$docudom,
3194: $fname,$formname,$parser,
1.1095 raeburn 3195: $allfiles,$codebase,$mimetype);
1.481 raeburn 3196: }
1.719 banghart 3197: } elsif (defined($destuname)) {
3198: my $docuname=$destuname;
3199: my $docudom=$destudom;
1.860 raeburn 3200: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3201: $parser,$allfiles,$codebase,
1.1051 raeburn 3202: $thumbwidth,$thumbheight,
1.1095 raeburn 3203: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3204: } else {
1.638 albertel 3205: my $docuname=$env{'user.name'};
3206: my $docudom=$env{'user.domain'};
1.714 raeburn 3207: if (exists($env{'form.group'})) {
3208: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3209: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3210: }
1.860 raeburn 3211: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3212: $parser,$allfiles,$codebase,
1.1051 raeburn 3213: $thumbwidth,$thumbheight,
1.1095 raeburn 3214: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3215: }
1.271 www 3216: }
3217:
3218: sub finishuserfileupload {
1.860 raeburn 3219: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3220: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3221: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3222: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3223:
1.860 raeburn 3224: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3225: $file=$fname;
3226: if ($fname=~m|/|) {
3227: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3228: $path.=$fnamepath.'/';
3229: }
1.259 www 3230: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3231: my $count;
3232: for ($count=4;$count<=$#parts;$count++) {
3233: $filepath.="/$parts[$count]";
3234: if ((-e $filepath)!=1) {
3235: mkdir($filepath,0777);
3236: }
3237: }
1.984 neumanie 3238:
1.258 www 3239: # Save the file
3240: {
1.701 albertel 3241: if (!open(FH,'>'.$filepath.'/'.$file)) {
3242: &logthis('Failed to create '.$filepath.'/'.$file);
3243: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3244: return '/adm/notfound.html';
3245: }
1.1090 raeburn 3246: if ($context eq 'overwrite') {
1.1117 foxr 3247: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3248: my $target = $filepath.'/'.$file;
3249: if (-e $source) {
3250: my @info = stat($source);
3251: if ($info[9] eq $env{'form.timestamp'}) {
3252: unless (&File::Copy::move($source,$target)) {
3253: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3254: return "Moving from $source failed";
3255: }
3256: } else {
3257: return "Temporary file: $source had unexpected date/time for last modification";
3258: }
3259: } else {
3260: return "Temporary file: $source missing";
3261: }
3262: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3263: &logthis('Failed to write to '.$filepath.'/'.$file);
3264: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3265: return '/adm/notfound.html';
3266: }
1.570 albertel 3267: close(FH);
1.1051 raeburn 3268: if ($resizewidth && $resizeheight) {
3269: my $mm = new File::MMagic;
3270: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3271: if ($mime_type =~ m{^image/}) {
3272: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3273: }
1.977 amueller 3274: }
1.258 www 3275: }
1.1152 raeburn 3276: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3277: if (ref($mimetype)) {
3278: if ($$mimetype eq '') {
3279: my $mm = new File::MMagic;
3280: my $type = $mm->checktype_filename($filepath.'/'.$file);
3281: $$mimetype = $type;
3282: }
3283: }
3284: }
1.637 raeburn 3285: if ($parser eq 'parse') {
1.1152 raeburn 3286: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3287: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3288: $allfiles,$codebase);
3289: unless ($parse_result eq 'ok') {
3290: &logthis('Failed to parse '.$filepath.$file.
3291: ' for embedded media: '.$parse_result);
3292: }
1.637 raeburn 3293: }
3294: }
1.860 raeburn 3295: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3296: my $input = $filepath.'/'.$file;
3297: my $output = $filepath.'/'.'tn-'.$file;
3298: my $thumbsize = $thumbwidth.'x'.$thumbheight;
3299: system("convert -sample $thumbsize $input $output");
3300: if (-e $filepath.'/'.'tn-'.$file) {
3301: $fetchthumb = 1;
3302: }
3303: }
1.858 raeburn 3304:
1.259 www 3305: # Notify homeserver to grep it
3306: #
1.984 neumanie 3307: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3308: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3309: if ($fetchresult eq 'ok') {
1.860 raeburn 3310: if ($fetchthumb) {
3311: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3312: if ($thumbresult ne 'ok') {
3313: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3314: $docuhome.': '.$thumbresult);
3315: }
3316: }
1.259 www 3317: #
1.258 www 3318: # Return the URL to it
1.494 albertel 3319: return '/uploaded/'.$path.$file;
1.263 www 3320: } else {
1.494 albertel 3321: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3322: ': '.$fetchresult);
1.263 www 3323: return '/adm/notfound.html';
1.858 raeburn 3324: }
1.493 albertel 3325: }
3326:
1.637 raeburn 3327: sub extract_embedded_items {
1.961 raeburn 3328: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3329: my @state = ();
1.1164 raeburn 3330: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3331: my %javafiles = (
3332: codebase => '',
3333: code => '',
3334: archive => ''
3335: );
3336: my %mediafiles = (
3337: src => '',
3338: movie => '',
3339: );
1.648 raeburn 3340: my $p;
3341: if ($content) {
3342: $p = HTML::LCParser->new($content);
3343: } else {
1.961 raeburn 3344: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3345: }
1.641 albertel 3346: while (my $t=$p->get_token()) {
1.640 albertel 3347: if ($t->[0] eq 'S') {
3348: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3349: push(@state, $tagname);
1.648 raeburn 3350: if (lc($tagname) eq 'allow') {
3351: &add_filetype($allfiles,$attr->{'src'},'src');
3352: }
1.640 albertel 3353: if (lc($tagname) eq 'img') {
3354: &add_filetype($allfiles,$attr->{'src'},'src');
3355: }
1.886 albertel 3356: if (lc($tagname) eq 'a') {
3357: &add_filetype($allfiles,$attr->{'href'},'href');
3358: }
1.645 raeburn 3359: if (lc($tagname) eq 'script') {
1.1164 raeburn 3360: my $src;
1.645 raeburn 3361: if ($attr->{'archive'} =~ /\.jar$/i) {
3362: &add_filetype($allfiles,$attr->{'archive'},'archive');
3363: } else {
1.1164 raeburn 3364: if ($attr->{'src'} ne '') {
3365: $src = $attr->{'src'};
3366: &add_filetype($allfiles,$src,'src');
3367: }
3368: }
3369: my $text = $p->get_trimmed_text();
3370: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3371: my @swfargs = split(/,/,$1);
3372: foreach my $item (@swfargs) {
3373: $item =~ s/["']//g;
3374: $item =~ s/^\s+//;
3375: $item =~ s/\s+$//;
3376: }
3377: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3378: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3379: push(@{$related{$swfargs[0]}},$swfargs[2]);
3380: } else {
3381: $related{$swfargs[0]} = [$swfargs[2]];
3382: }
3383: }
1.645 raeburn 3384: }
3385: }
3386: if (lc($tagname) eq 'link') {
3387: if (lc($attr->{'rel'}) eq 'stylesheet') {
3388: &add_filetype($allfiles,$attr->{'href'},'href');
3389: }
3390: }
1.640 albertel 3391: if (lc($tagname) eq 'object' ||
3392: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3393: foreach my $item (keys(%javafiles)) {
3394: $javafiles{$item} = '';
3395: }
1.1164 raeburn 3396: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3397: $lastids{lc($tagname)} = $attr->{'id'};
3398: }
1.640 albertel 3399: }
3400: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3401: my $name = lc($attr->{'name'});
3402: foreach my $item (keys(%javafiles)) {
3403: if ($name eq $item) {
3404: $javafiles{$item} = $attr->{'value'};
3405: last;
3406: }
3407: }
1.1164 raeburn 3408: my $pathfrom;
1.640 albertel 3409: foreach my $item (keys(%mediafiles)) {
3410: if ($name eq $item) {
1.1164 raeburn 3411: $pathfrom = $attr->{'value'};
3412: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3413: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3414: last;
3415: }
3416: }
1.1164 raeburn 3417: if ($name eq 'flashvars') {
3418: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3419: }
3420: if ($pathfrom ne '') {
3421: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3422: $pathfrom);
3423: }
1.640 albertel 3424: }
3425: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3426: foreach my $item (keys(%javafiles)) {
3427: if ($attr->{$item}) {
3428: $javafiles{$item} = $attr->{$item};
3429: last;
3430: }
3431: }
3432: foreach my $item (keys(%mediafiles)) {
3433: if ($attr->{$item}) {
3434: &add_filetype($allfiles,$attr->{$item},$item);
3435: last;
3436: }
3437: }
1.1164 raeburn 3438: if (lc($tagname) eq 'embed') {
3439: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3440: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3441: $attr->{'src'});
3442: }
3443: }
1.640 albertel 3444: }
1.1164 raeburn 3445: if ($t->[4] =~ m{/>$}) {
3446: pop(@state);
3447: }
1.640 albertel 3448: } elsif ($t->[0] eq 'E') {
3449: my ($tagname) = ($t->[1]);
3450: if ($javafiles{'codebase'} ne '') {
3451: $javafiles{'codebase'} .= '/';
3452: }
3453: if (lc($tagname) eq 'applet' ||
3454: lc($tagname) eq 'object' ||
3455: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3456: ) {
3457: foreach my $item (keys(%javafiles)) {
3458: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3459: my $file=$javafiles{'codebase'}.$javafiles{$item};
3460: &add_filetype($allfiles,$file,$item);
3461: }
3462: }
3463: }
3464: pop @state;
3465: }
3466: }
1.1164 raeburn 3467: foreach my $id (sort(keys(%flashvars))) {
3468: if ($shockwave{$id} ne '') {
3469: my @pairs = split(/\&/,$flashvars{$id});
3470: foreach my $pair (@pairs) {
3471: my ($key,$value) = split(/\=/,$pair);
3472: if ($key eq 'thumb') {
3473: &add_filetype($allfiles,$value,$key);
3474: } elsif ($key eq 'content') {
3475: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3476: my ($ext) = ($value =~ /\.([^.]+)$/);
3477: if ($ext ne '') {
3478: &add_filetype($allfiles,$path.$value,$ext);
3479: }
3480: }
3481: }
3482: }
3483: }
1.637 raeburn 3484: return 'ok';
3485: }
3486:
1.639 albertel 3487: sub add_filetype {
3488: my ($allfiles,$file,$type)=@_;
3489: if (exists($allfiles->{$file})) {
3490: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3491: push(@{$allfiles->{$file}}, &escape($type));
3492: }
3493: } else {
3494: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3495: }
3496: }
3497:
1.1164 raeburn 3498: sub embedded_dependency {
3499: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3500: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3501: if (($identifier ne '') &&
3502: (ref($related->{$identifier}) eq 'ARRAY') &&
3503: ($pathfrom ne '')) {
3504: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3505: foreach my $dep (@{$related->{$identifier}}) {
3506: &add_filetype($allfiles,$path.$dep,'object');
3507: }
3508: }
3509: }
3510: return;
3511: }
3512:
1.493 albertel 3513: sub removeuploadedurl {
1.984 neumanie 3514: my ($url)=@_;
3515: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3516: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3517: }
3518:
3519: sub removeuserfile {
3520: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3521: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3522: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3523: if ($result eq 'ok') {
1.798 raeburn 3524: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3525: my $metafile = $fname.'.meta';
3526: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3527: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3528: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3529: my $sqlresult =
1.823 albertel 3530: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3531: 'portfolio_metadata',$group,
3532: 'delete');
1.798 raeburn 3533: }
3534: }
3535: return $result;
1.257 www 3536: }
1.15 www 3537:
1.530 albertel 3538: sub mkdiruserfile {
3539: my ($docuname,$docudom,$dir)=@_;
3540: my $home=&homeserver($docuname,$docudom);
3541: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3542: }
3543:
1.531 albertel 3544: sub renameuserfile {
3545: my ($docuname,$docudom,$old,$new)=@_;
3546: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3547: my $result = &reply("renameuserfile:$docudom:$docuname:".
3548: &escape("$old").':'.&escape("$new"),$home);
3549: if ($result eq 'ok') {
3550: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3551: my $oldmeta = $old.'.meta';
3552: my $newmeta = $new.'.meta';
3553: my $metaresult =
3554: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3555: my $url = "/uploaded/$docudom/$docuname/$old";
3556: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3557: my $sqlresult =
1.823 albertel 3558: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3559: 'portfolio_metadata',$group,
3560: 'delete');
1.798 raeburn 3561: }
3562: }
3563: return $result;
1.531 albertel 3564: }
3565:
1.14 www 3566: # ------------------------------------------------------------------------- Log
3567:
3568: sub log {
3569: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3570: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3571: }
3572:
3573: # ------------------------------------------------------------------ Course Log
1.352 www 3574: #
3575: # This routine flushes several buffers of non-mission-critical nature
3576: #
1.157 www 3577:
3578: sub flushcourselogs {
1.352 www 3579: &logthis('Flushing log buffers');
3580: #
3581: # course logs
3582: # This is a log of all transactions in a course, which can be used
3583: # for data mining purposes
3584: #
3585: # It also collects the courseid database, which lists last transaction
3586: # times and course titles for all courseids
3587: #
3588: my %courseidbuffer=();
1.921 raeburn 3589: foreach my $crsid (keys(%courselogs)) {
1.352 www 3590: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3591: &escape($courselogs{$crsid}),
3592: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3593: delete $courselogs{$crsid};
3594: } else {
3595: &logthis('Failed to flush log buffer for '.$crsid);
3596: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3597: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3598: " exceeded maximum size, deleting.</font>");
3599: delete $courselogs{$crsid};
3600: }
1.352 www 3601: }
1.920 raeburn 3602: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3603: 'description' => $coursedescrbuf{$crsid},
3604: 'inst_code' => $courseinstcodebuf{$crsid},
3605: 'type' => $coursetypebuf{$crsid},
3606: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3607: };
1.191 harris41 3608: }
1.352 www 3609: #
3610: # Write course id database (reverse lookup) to homeserver of courses
3611: # Is used in pickcourse
3612: #
1.840 albertel 3613: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3614: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3615: $courseidbuffer{$crs_home},
3616: $crs_home,'timeonly');
1.352 www 3617: }
3618: #
3619: # File accesses
3620: # Writes to the dynamic metadata of resources to get hit counts, etc.
3621: #
1.449 matthew 3622: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3623: if ($entry =~ /___count$/) {
3624: my ($dom,$name);
1.807 albertel 3625: ($dom,$name,undef)=
1.811 albertel 3626: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3627: if (! defined($dom) || $dom eq '' ||
3628: ! defined($name) || $name eq '') {
1.620 albertel 3629: my $cid = $env{'request.course.id'};
3630: $dom = $env{'request.'.$cid.'.domain'};
3631: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3632: }
1.450 matthew 3633: my $value = $accesshash{$entry};
3634: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3635: my %temphash=($url => $value);
1.449 matthew 3636: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3637: if ($result eq 'ok') {
3638: delete $accesshash{$entry};
3639: }
3640: } else {
1.811 albertel 3641: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 3642: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 3643: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 3644: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
3645: delete $accesshash{$entry};
3646: }
1.185 www 3647: }
1.191 harris41 3648: }
1.352 www 3649: #
3650: # Roles
3651: # Reverse lookup of user roles for course faculty/staff and co-authorship
3652: #
1.800 albertel 3653: foreach my $entry (keys(%userrolehash)) {
1.351 www 3654: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 3655: split(/\:/,$entry);
3656: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 3657: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 3658: $rudom,$runame) eq 'ok') {
3659: delete $userrolehash{$entry};
3660: }
3661: }
1.662 raeburn 3662: #
3663: # Reverse lookup of domain roles (dc, ad, li, sc, au)
3664: #
3665: my %domrolebuffer = ();
1.1000 raeburn 3666: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 3667: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 3668: if ($domrolebuffer{$rudom}) {
3669: $domrolebuffer{$rudom}.='&'.&escape($entry).
3670: '='.&escape($domainrolehash{$entry});
3671: } else {
3672: $domrolebuffer{$rudom}.=&escape($entry).
3673: '='.&escape($domainrolehash{$entry});
3674: }
3675: delete $domainrolehash{$entry};
3676: }
3677: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 3678: my %servers = &get_servers($dom,'library');
3679: foreach my $tryserver (keys(%servers)) {
3680: unless (&reply('domroleput:'.$dom.':'.
3681: $domrolebuffer{$dom},$tryserver) eq 'ok') {
3682: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
3683: }
1.662 raeburn 3684: }
3685: }
1.186 www 3686: $dumpcount++;
1.157 www 3687: }
3688:
3689: sub courselog {
3690: my $what=shift;
1.158 www 3691: $what=time.':'.$what;
1.620 albertel 3692: unless ($env{'request.course.id'}) { return ''; }
3693: $coursedombuf{$env{'request.course.id'}}=
3694: $env{'course.'.$env{'request.course.id'}.'.domain'};
3695: $coursenumbuf{$env{'request.course.id'}}=
3696: $env{'course.'.$env{'request.course.id'}.'.num'};
3697: $coursehombuf{$env{'request.course.id'}}=
3698: $env{'course.'.$env{'request.course.id'}.'.home'};
3699: $coursedescrbuf{$env{'request.course.id'}}=
3700: $env{'course.'.$env{'request.course.id'}.'.description'};
3701: $courseinstcodebuf{$env{'request.course.id'}}=
3702: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
3703: $courseownerbuf{$env{'request.course.id'}}=
3704: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 3705: $coursetypebuf{$env{'request.course.id'}}=
3706: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 3707: if (defined $courselogs{$env{'request.course.id'}}) {
3708: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 3709: } else {
1.620 albertel 3710: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 3711: }
1.620 albertel 3712: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 3713: &flushcourselogs();
3714: }
1.158 www 3715: }
3716:
3717: sub courseacclog {
3718: my $fnsymb=shift;
1.620 albertel 3719: unless ($env{'request.course.id'}) { return ''; }
3720: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 3721: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 3722: $what.=':POST';
1.583 matthew 3723: # FIXME: Probably ought to escape things....
1.800 albertel 3724: foreach my $key (keys(%env)) {
3725: if ($key=~/^form\.(.*)/) {
1.975 raeburn 3726: my $formitem = $1;
3727: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
3728: $what.=':'.$formitem.'='.$env{$key};
3729: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
3730: $what.=':'.$formitem.'='.$env{$key};
3731: }
1.158 www 3732: }
1.191 harris41 3733: }
1.583 matthew 3734: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
3735: # FIXME: We should not be depending on a form parameter that someone
3736: # editing lonsearchcat.pm might change in the future.
1.620 albertel 3737: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 3738: $what.= ':POST';
3739: # FIXME: Probably ought to escape things....
3740: foreach my $element ('courseexp','crsfulltext','crsrelated',
3741: 'crsdiscuss') {
1.620 albertel 3742: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 3743: }
3744: }
1.158 www 3745: }
3746: &courselog($what);
1.149 www 3747: }
3748:
1.185 www 3749: sub countacc {
3750: my $url=&declutter(shift);
1.458 matthew 3751: return if (! defined($url) || $url eq '');
1.620 albertel 3752: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 3753: #
3754: # Mark that this url was used in this course
3755: #
1.620 albertel 3756: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 3757: #
3758: # Increase the access count for this resource in this child process
3759: #
1.281 www 3760: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 3761: $accesshash{$key}++;
1.185 www 3762: }
1.349 www 3763:
1.361 www 3764: sub linklog {
3765: my ($from,$to)=@_;
3766: $from=&declutter($from);
3767: $to=&declutter($to);
3768: $accesshash{$from.'___'.$to.'___comefrom'}=1;
3769: $accesshash{$to.'___'.$from.'___goto'}=1;
3770: }
1.1160 www 3771:
3772: sub statslog {
3773: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
3774: if ($users<2) { return; }
3775: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
3776: 'course' => $env{'request.course.id'},
3777: 'sections' => '"all"',
3778: 'num_students' => $users,
3779: 'part' => $part,
3780: 'symb' => $symb,
3781: 'mean_tries' => $av_attempts,
3782: 'deg_of_diff' => $degdiff});
3783: foreach my $key (keys(%dynstore)) {
3784: $accesshash{$key}=$dynstore{$key};
3785: }
3786: }
1.361 www 3787:
1.349 www 3788: sub userrolelog {
3789: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 3790: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 3791: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3792: $userrolehash
3793: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 3794: =$tend.':'.$tstart;
1.662 raeburn 3795: }
1.1169 droeschl 3796: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 3797: $userrolehash
3798: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
3799: =$tend.':'.$tstart;
3800: }
1.1169 droeschl 3801: if ($trole =~ /^(dc|ad|li|au|dg|sc)/ ) {
1.662 raeburn 3802: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
3803: $domainrolehash
3804: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
3805: = $tend.':'.$tstart;
3806: }
1.351 www 3807: }
3808:
1.957 raeburn 3809: sub courserolelog {
3810: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1184 raeburn 3811: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
3812: my $cdom = $1;
3813: my $cnum = $2;
3814: my $sec = $3;
3815: my $namespace = 'rolelog';
3816: my %storehash = (
3817: role => $trole,
3818: start => $tstart,
3819: end => $tend,
3820: selfenroll => $selfenroll,
3821: context => $context,
3822: );
3823: if ($trole eq 'gr') {
3824: $namespace = 'groupslog';
3825: $storehash{'group'} = $sec;
3826: } else {
3827: $storehash{'section'} = $sec;
3828: }
1.1188 raeburn 3829: &write_log('course',$namespace,\%storehash,$delflag,$username,
3830: $domain,$cnum,$cdom);
1.1184 raeburn 3831: if (($trole ne 'st') || ($sec ne '')) {
3832: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 3833: }
3834: }
3835: return;
3836: }
3837:
1.1184 raeburn 3838: sub domainrolelog {
3839: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3840: if ($area =~ m{^/($match_domain)/$}) {
3841: my $cdom = $1;
3842: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
3843: my $namespace = 'rolelog';
3844: my %storehash = (
3845: role => $trole,
3846: start => $tstart,
3847: end => $tend,
3848: context => $context,
3849: );
1.1188 raeburn 3850: &write_log('domain',$namespace,\%storehash,$delflag,$username,
3851: $domain,$domconfiguser,$cdom);
1.1184 raeburn 3852: }
3853: return;
3854:
3855: }
3856:
3857: sub coauthorrolelog {
3858: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
3859: if ($area =~ m{^/($match_domain)/($match_username)$}) {
3860: my $audom = $1;
3861: my $auname = $2;
3862: my $namespace = 'rolelog';
3863: my %storehash = (
3864: role => $trole,
3865: start => $tstart,
3866: end => $tend,
3867: context => $context,
3868: );
1.1188 raeburn 3869: &write_log('author',$namespace,\%storehash,$delflag,$username,
3870: $domain,$auname,$audom);
1.1184 raeburn 3871: }
3872: return;
3873: }
3874:
1.351 www 3875: sub get_course_adv_roles {
1.948 raeburn 3876: my ($cid,$codes) = @_;
1.620 albertel 3877: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 3878: my %coursehash=&coursedescription($cid);
1.988 raeburn 3879: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 3880: my %nothide=();
1.800 albertel 3881: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 3882: if ($user !~ /:/) {
3883: $nothide{join(':',split(/[\@]/,$user))}=1;
3884: } else {
3885: $nothide{$user}=1;
3886: }
1.470 www 3887: }
1.351 www 3888: my %returnhash=();
3889: my %dumphash=
3890: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
3891: my $now=time;
1.997 raeburn 3892: my %privileged;
1.1000 raeburn 3893: foreach my $entry (keys(%dumphash)) {
1.800 albertel 3894: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 3895: if (($tstart) && ($tstart<0)) { next; }
3896: if (($tend) && ($tend<$now)) { next; }
3897: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 3898: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 3899: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 3900: unless (ref($privileged{$domain}) eq 'HASH') {
3901: my %dompersonnel =
1.998 raeburn 3902: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3903: $privileged{$domain} = {};
3904: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3905: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3906: foreach my $user (keys(%{$dompersonnel{$server}})) {
3907: my ($trole,$uname,$udom) = split(/:/,$user);
3908: $privileged{$udom}{$uname} = 1;
3909: }
3910: }
3911: }
3912: }
3913: if ((exists($privileged{$domain}{$username})) &&
3914: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3915: if ($role eq 'cr') { next; }
1.948 raeburn 3916: if ($codes) {
3917: if ($section) { $role .= ':'.$section; }
3918: if ($returnhash{$role}) {
3919: $returnhash{$role}.=','.$username.':'.$domain;
3920: } else {
3921: $returnhash{$role}=$username.':'.$domain;
3922: }
1.351 www 3923: } else {
1.988 raeburn 3924: my $key=&plaintext($role,$crstype);
1.973 bisitz 3925: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3926: if ($returnhash{$key}) {
3927: $returnhash{$key}.=','.$username.':'.$domain;
3928: } else {
3929: $returnhash{$key}=$username.':'.$domain;
3930: }
1.351 www 3931: }
1.948 raeburn 3932: }
1.400 www 3933: return %returnhash;
3934: }
3935:
3936: sub get_my_roles {
1.937 raeburn 3937: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3938: unless (defined($uname)) { $uname=$env{'user.name'}; }
3939: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3940: my (%dumphash,%nothide);
1.1086 raeburn 3941: if ($context eq 'userroles') {
1.1166 raeburn 3942: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 3943: } else {
3944: %dumphash=
1.400 www 3945: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3946: if ($hidepriv) {
3947: my %coursehash=&coursedescription($udom.'_'.$uname);
3948: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3949: if ($user !~ /:/) {
3950: $nothide{join(':',split(/[\@]/,$user))} = 1;
3951: } else {
3952: $nothide{$user} = 1;
3953: }
3954: }
3955: }
1.858 raeburn 3956: }
1.400 www 3957: my %returnhash=();
3958: my $now=time;
1.999 raeburn 3959: my %privileged;
1.800 albertel 3960: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3961: my ($role,$tend,$tstart);
3962: if ($context eq 'userroles') {
1.1149 raeburn 3963: next if ($entry =~ /^rolesdef/);
1.867 raeburn 3964: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3965: } else {
3966: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3967: }
1.400 www 3968: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3969: my $status = 'active';
1.939 raeburn 3970: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3971: $status = 'previous';
3972: }
3973: if (($tstart) && ($now<$tstart)) {
3974: $status = 'future';
3975: }
3976: if (ref($types) eq 'ARRAY') {
3977: if (!grep(/^\Q$status\E$/,@{$types})) {
3978: next;
3979: }
3980: } else {
3981: if ($status ne 'active') {
3982: next;
3983: }
3984: }
1.867 raeburn 3985: my ($rolecode,$username,$domain,$section,$area);
3986: if ($context eq 'userroles') {
1.1186 raeburn 3987: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 3988: (undef,$domain,$username,$section) = split(/\//,$area);
3989: } else {
3990: ($role,$username,$domain,$section) = split(/\:/,$entry);
3991: }
1.832 raeburn 3992: if (ref($roledoms) eq 'ARRAY') {
3993: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3994: next;
3995: }
3996: }
3997: if (ref($roles) eq 'ARRAY') {
3998: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3999: if ($role =~ /^cr\//) {
4000: if (!grep(/^cr$/,@{$roles})) {
4001: next;
4002: }
1.1104 raeburn 4003: } elsif ($role =~ /^gr\//) {
4004: if (!grep(/^gr$/,@{$roles})) {
4005: next;
4006: }
1.922 raeburn 4007: } else {
4008: next;
4009: }
1.832 raeburn 4010: }
1.867 raeburn 4011: }
1.937 raeburn 4012: if ($hidepriv) {
1.999 raeburn 4013: if ($context eq 'userroles') {
4014: if ((&privileged($username,$domain)) &&
4015: (!$nothide{$username.':'.$domain})) {
4016: next;
4017: }
4018: } else {
4019: unless (ref($privileged{$domain}) eq 'HASH') {
4020: my %dompersonnel =
4021: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
4022: $privileged{$domain} = {};
4023: if (keys(%dompersonnel)) {
4024: foreach my $server (keys(%dompersonnel)) {
4025: if (ref($dompersonnel{$server}) eq 'HASH') {
4026: foreach my $user (keys(%{$dompersonnel{$server}})) {
4027: my ($trole,$uname,$udom) = split(/:/,$user);
4028: $privileged{$udom}{$uname} = $trole;
4029: }
4030: }
4031: }
4032: }
4033: }
4034: if (exists($privileged{$domain}{$username})) {
4035: if (!$nothide{$username.':'.$domain}) {
4036: next;
4037: }
4038: }
1.937 raeburn 4039: }
4040: }
1.933 raeburn 4041: if ($withsec) {
4042: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4043: $tstart.':'.$tend;
4044: } else {
4045: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4046: }
1.832 raeburn 4047: }
1.373 www 4048: return %returnhash;
1.399 www 4049: }
4050:
4051: # ----------------------------------------------------- Frontpage Announcements
4052: #
4053: #
4054:
4055: sub postannounce {
4056: my ($server,$text)=@_;
1.844 albertel 4057: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4058: unless ($text=~/\w/) { $text=''; }
4059: return &reply('setannounce:'.&escape($text),$server);
4060: }
4061:
4062: sub getannounce {
1.448 albertel 4063:
4064: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4065: my $announcement='';
1.800 albertel 4066: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4067: close($fh);
1.399 www 4068: if ($announcement=~/\w/) {
4069: return
4070: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4071: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4072: } else {
4073: return '';
4074: }
4075: } else {
4076: return '';
4077: }
1.351 www 4078: }
1.353 www 4079:
4080: # ---------------------------------------------------------- Course ID routines
4081: # Deal with domain's nohist_courseid.db files
4082: #
4083:
4084: sub courseidput {
1.921 raeburn 4085: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4086: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4087: my $outcome;
4088: if ($caller eq 'timeonly') {
4089: my $cids = '';
4090: foreach my $item (keys(%$storehash)) {
4091: $cids.=&escape($item).'&';
4092: }
4093: $cids=~s/\&$//;
4094: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4095: $coursehome);
4096: } else {
4097: my $items = '';
4098: foreach my $item (keys(%$storehash)) {
4099: $items.= &escape($item).'='.
4100: &freeze_escape($$storehash{$item}).'&';
4101: }
4102: $items=~s/\&$//;
4103: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4104: $coursehome);
1.918 raeburn 4105: }
4106: if ($outcome eq 'unknown_cmd') {
4107: my $what;
4108: foreach my $cid (keys(%$storehash)) {
4109: $what .= &escape($cid).'=';
1.921 raeburn 4110: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4111: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4112: }
4113: $what =~ s/\:$/&/;
4114: }
4115: $what =~ s/\&$//;
4116: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4117: } else {
4118: return $outcome;
4119: }
1.353 www 4120: }
4121:
4122: sub courseiddump {
1.921 raeburn 4123: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4124: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4125: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 4126: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 4127: my $as_hash = 1;
4128: my %returnhash;
4129: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4130: my %libserv = &all_library();
4131: foreach my $tryserver (keys(%libserv)) {
4132: if ( ( $hostidflag == 1
4133: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4134: || (!defined($hostidflag)) ) {
4135:
1.918 raeburn 4136: if (($domfilter eq '') ||
4137: (&host_domain($tryserver) eq $domfilter)) {
1.1180 droeschl 4138: my $rep;
4139: if (grep { $_ eq $tryserver } current_machine_ids()) {
4140: $rep = LONCAPA::Lond::dump_course_id_handler(
4141: join(":", (&host_domain($tryserver), $sincefilter,
4142: &escape($descfilter), &escape($instcodefilter),
4143: &escape($ownerfilter), &escape($coursefilter),
4144: &escape($typefilter), &escape($regexp_ok),
4145: $as_hash, &escape($selfenrollonly),
4146: &escape($catfilter), $showhidden, $caller,
4147: &escape($cloner), &escape($cc_clone), $cloneonly,
4148: &escape($createdbefore), &escape($createdafter),
4149: &escape($creationcontext), $domcloner)));
4150: } else {
4151: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
4152: $sincefilter.':'.&escape($descfilter).':'.
4153: &escape($instcodefilter).':'.&escape($ownerfilter).
4154: ':'.&escape($coursefilter).':'.&escape($typefilter).
4155: ':'.&escape($regexp_ok).':'.$as_hash.':'.
4156: &escape($selfenrollonly).':'.&escape($catfilter).':'.
4157: $showhidden.':'.$caller.':'.&escape($cloner).':'.
4158: &escape($cc_clone).':'.$cloneonly.':'.
4159: &escape($createdbefore).':'.&escape($createdafter).':'.
4160: &escape($creationcontext).':'.$domcloner,
4161: $tryserver);
4162: }
4163:
1.918 raeburn 4164: my @pairs=split(/\&/,$rep);
4165: foreach my $item (@pairs) {
4166: my ($key,$value)=split(/\=/,$item,2);
4167: $key = &unescape($key);
4168: next if ($key =~ /^error: 2 /);
4169: my $result = &thaw_unescape($value);
4170: if (ref($result) eq 'HASH') {
4171: $returnhash{$key}=$result;
4172: } else {
1.921 raeburn 4173: my @responses = split(/:/,$value);
4174: my @items = ('description','inst_code','owner','type');
1.918 raeburn 4175: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 4176: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 4177: }
1.1008 raeburn 4178: }
1.353 www 4179: }
4180: }
4181: }
4182: }
4183: return %returnhash;
4184: }
4185:
1.1055 raeburn 4186: sub courselastaccess {
4187: my ($cdom,$cnum,$hostidref) = @_;
4188: my %returnhash;
4189: if ($cdom && $cnum) {
4190: my $chome = &homeserver($cnum,$cdom);
4191: if ($chome ne 'no_host') {
4192: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
4193: &extract_lastaccess(\%returnhash,$rep);
4194: }
4195: } else {
4196: if (!$cdom) { $cdom=''; }
4197: my %libserv = &all_library();
4198: foreach my $tryserver (keys(%libserv)) {
4199: if (ref($hostidref) eq 'ARRAY') {
4200: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
4201: }
4202: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
4203: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
4204: &extract_lastaccess(\%returnhash,$rep);
4205: }
4206: }
4207: }
4208: return %returnhash;
4209: }
4210:
4211: sub extract_lastaccess {
4212: my ($returnhash,$rep) = @_;
4213: if (ref($returnhash) eq 'HASH') {
4214: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
4215: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
4216: $rep eq '') {
4217: my @pairs=split(/\&/,$rep);
4218: foreach my $item (@pairs) {
4219: my ($key,$value)=split(/\=/,$item,2);
4220: $key = &unescape($key);
4221: next if ($key =~ /^error: 2 /);
4222: $returnhash->{$key} = &thaw_unescape($value);
4223: }
4224: }
4225: }
4226: return;
4227: }
4228:
1.658 raeburn 4229: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 4230:
4231: sub dcmailput {
1.685 raeburn 4232: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 4233: my $status = &Apache::lonnet::critical(
1.740 www 4234: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
4235: &escape($message),$server);
1.662 raeburn 4236: return $status;
4237: }
4238:
1.658 raeburn 4239: sub dcmaildump {
4240: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 4241: my %returnhash=();
1.846 albertel 4242:
4243: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 4244: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
4245: &escape($enddate).':';
4246: my @esc_senders=map { &escape($_)} @$senders;
4247: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 4248: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 4249: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 4250: if (($key) && ($value)) {
4251: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 4252: }
4253: }
4254: }
4255: return %returnhash;
4256: }
1.662 raeburn 4257: # ---------------------------------------------------------- Domain roles
4258:
4259: sub get_domain_roles {
4260: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 4261: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 4262: $startdate = '.';
4263: }
1.1018 raeburn 4264: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 4265: $enddate = '.';
4266: }
1.922 raeburn 4267: my $rolelist;
4268: if (ref($roles) eq 'ARRAY') {
4269: $rolelist = join(':',@{$roles});
4270: }
1.662 raeburn 4271: my %personnel = ();
1.841 albertel 4272:
4273: my %servers = &get_servers($dom,'library');
4274: foreach my $tryserver (keys(%servers)) {
4275: %{$personnel{$tryserver}}=();
4276: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
4277: &escape($startdate).':'.
4278: &escape($enddate).':'.
4279: &escape($rolelist), $tryserver))) {
4280: my ($key,$value) = split(/\=/,$line,2);
4281: if (($key) && ($value)) {
4282: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
4283: }
4284: }
1.662 raeburn 4285: }
4286: return %personnel;
4287: }
1.658 raeburn 4288:
1.1057 www 4289: # ----------------------------------------------------------- Interval timing
1.149 www 4290:
1.1153 www 4291: {
4292: # Caches needed for speedup of navmaps
4293: # We don't want to cache this for very long at all (5 seconds at most)
4294: #
4295: # The user for whom we cache
4296: my $cachedkey='';
4297: # The cached times for this user
4298: my %cachedtimes=();
4299: # When this was last done
4300: my $cachedtime=();
4301:
4302: sub load_all_first_access {
1.1154 raeburn 4303: my ($uname,$udom)=@_;
1.1156 www 4304: if (($cachedkey eq $uname.':'.$udom) &&
1.1174 raeburn 4305: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4306: return;
4307: }
4308: $cachedtime=time;
4309: $cachedkey=$uname.':'.$udom;
4310: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4311: }
4312:
1.504 albertel 4313: sub get_first_access {
1.1162 raeburn 4314: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4315: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4316: if ($argsymb) { $symb=$argsymb; }
4317: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4318: if ($argmap) { $map = $argmap; }
1.926 albertel 4319: if ($type eq 'course') {
4320: $res='course';
4321: } elsif ($type eq 'map') {
1.588 albertel 4322: $res=&symbread($map);
4323: } else {
4324: $res=$symb;
4325: }
1.1153 www 4326: &load_all_first_access($uname,$udom);
4327: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4328: }
4329:
4330: sub set_first_access {
1.1162 raeburn 4331: my ($type,$interval)=@_;
1.790 albertel 4332: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4333: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4334: if ($type eq 'course') {
4335: $res='course';
4336: } elsif ($type eq 'map') {
1.588 albertel 4337: $res=&symbread($map);
4338: } else {
4339: $res=$symb;
4340: }
1.1153 www 4341: $cachedkey='';
1.1162 raeburn 4342: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4343: if (!$firstaccess) {
1.1162 raeburn 4344: my $start = time;
4345: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4346: $udom,$uname);
4347: if ($putres eq 'ok') {
4348: &put('timerinterval',{"$courseid\0$res"=>$interval},
4349: $udom,$uname);
4350: &appenv(
4351: {
4352: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4353: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4354: }
4355: );
4356: }
4357: return $putres;
1.505 albertel 4358: }
4359: return 'already_set';
1.504 albertel 4360: }
1.1153 www 4361: }
1.110 www 4362: # --------------------------------------------- Set Expire Date for Spreadsheet
4363:
4364: sub expirespread {
4365: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 4366: my $cid=$env{'request.course.id'};
1.110 www 4367: if ($cid) {
4368: my $now=time;
4369: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 4370: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
4371: $env{'course.'.$cid.'.num'}.
1.110 www 4372: ':nohist_expirationdates:'.
4373: &escape($key).'='.$now,
1.620 albertel 4374: $env{'course.'.$cid.'.home'})
1.110 www 4375: }
4376: return 'ok';
1.14 www 4377: }
4378:
1.109 www 4379: # ----------------------------------------------------- Devalidate Spreadsheets
4380:
4381: sub devalidate {
1.325 www 4382: my ($symb,$uname,$udom)=@_;
1.620 albertel 4383: my $cid=$env{'request.course.id'};
1.109 www 4384: if ($cid) {
1.391 matthew 4385: # delete the stored spreadsheets for
4386: # - the student level sheet of this user in course's homespace
4387: # - the assessment level sheet for this resource
4388: # for this user in user's homespace
1.553 albertel 4389: # - current conditional state info
1.325 www 4390: my $key=$uname.':'.$udom.':';
1.109 www 4391: my $status=
1.299 matthew 4392: &del('nohist_calculatedsheets',
1.391 matthew 4393: [$key.'studentcalc:'],
1.620 albertel 4394: $env{'course.'.$cid.'.domain'},
4395: $env{'course.'.$cid.'.num'})
1.133 albertel 4396: .' '.
4397: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 4398: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 4399: unless ($status eq 'ok ok') {
4400: &logthis('Could not devalidate spreadsheet '.
1.325 www 4401: $uname.' at '.$udom.' for '.
1.109 www 4402: $symb.': '.$status);
1.133 albertel 4403: }
1.553 albertel 4404: &delenv('user.state.'.$cid);
1.109 www 4405: }
4406: }
4407:
1.265 albertel 4408: sub get_scalar {
4409: my ($string,$end) = @_;
4410: my $value;
4411: if ($$string =~ s/^([^&]*?)($end)/$2/) {
4412: $value = $1;
4413: } elsif ($$string =~ s/^([^&]*?)&//) {
4414: $value = $1;
4415: }
4416: return &unescape($value);
4417: }
4418:
4419: sub array2str {
4420: my (@array) = @_;
4421: my $result=&arrayref2str(\@array);
4422: $result=~s/^__ARRAY_REF__//;
4423: $result=~s/__END_ARRAY_REF__$//;
4424: return $result;
4425: }
4426:
1.204 albertel 4427: sub arrayref2str {
4428: my ($arrayref) = @_;
1.265 albertel 4429: my $result='__ARRAY_REF__';
1.204 albertel 4430: foreach my $elem (@$arrayref) {
1.265 albertel 4431: if(ref($elem) eq 'ARRAY') {
4432: $result.=&arrayref2str($elem).'&';
4433: } elsif(ref($elem) eq 'HASH') {
4434: $result.=&hashref2str($elem).'&';
4435: } elsif(ref($elem)) {
4436: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 4437: } else {
4438: $result.=&escape($elem).'&';
4439: }
4440: }
4441: $result=~s/\&$//;
1.265 albertel 4442: $result .= '__END_ARRAY_REF__';
1.204 albertel 4443: return $result;
4444: }
4445:
1.168 albertel 4446: sub hash2str {
1.204 albertel 4447: my (%hash) = @_;
4448: my $result=&hashref2str(\%hash);
1.265 albertel 4449: $result=~s/^__HASH_REF__//;
4450: $result=~s/__END_HASH_REF__$//;
1.204 albertel 4451: return $result;
4452: }
4453:
4454: sub hashref2str {
4455: my ($hashref)=@_;
1.265 albertel 4456: my $result='__HASH_REF__';
1.800 albertel 4457: foreach my $key (sort(keys(%$hashref))) {
4458: if (ref($key) eq 'ARRAY') {
4459: $result.=&arrayref2str($key).'=';
4460: } elsif (ref($key) eq 'HASH') {
4461: $result.=&hashref2str($key).'=';
4462: } elsif (ref($key)) {
1.265 albertel 4463: $result.='=';
1.800 albertel 4464: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 4465: } else {
1.1132 raeburn 4466: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 4467: }
4468:
1.800 albertel 4469: if(ref($hashref->{$key}) eq 'ARRAY') {
4470: $result.=&arrayref2str($hashref->{$key}).'&';
4471: } elsif(ref($hashref->{$key}) eq 'HASH') {
4472: $result.=&hashref2str($hashref->{$key}).'&';
4473: } elsif(ref($hashref->{$key})) {
1.265 albertel 4474: $result.='&';
1.800 albertel 4475: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 4476: } else {
1.800 albertel 4477: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 4478: }
4479: }
1.168 albertel 4480: $result=~s/\&$//;
1.265 albertel 4481: $result .= '__END_HASH_REF__';
1.168 albertel 4482: return $result;
4483: }
4484:
4485: sub str2hash {
1.265 albertel 4486: my ($string)=@_;
4487: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
4488: return %$hash;
4489: }
4490:
4491: sub str2hashref {
1.168 albertel 4492: my ($string) = @_;
1.265 albertel 4493:
4494: my %hash;
4495:
4496: if($string !~ /^__HASH_REF__/) {
4497: if (! ($string eq '' || !defined($string))) {
4498: $hash{'error'}='Not hash reference';
4499: }
4500: return (\%hash, $string);
4501: }
4502:
4503: $string =~ s/^__HASH_REF__//;
4504:
4505: while($string !~ /^__END_HASH_REF__/) {
4506: #key
4507: my $key='';
4508: if($string =~ /^__HASH_REF__/) {
4509: ($key, $string)=&str2hashref($string);
4510: if(defined($key->{'error'})) {
4511: $hash{'error'}='Bad data';
4512: return (\%hash, $string);
4513: }
4514: } elsif($string =~ /^__ARRAY_REF__/) {
4515: ($key, $string)=&str2arrayref($string);
4516: if($key->[0] eq 'Array reference error') {
4517: $hash{'error'}='Bad data';
4518: return (\%hash, $string);
4519: }
4520: } else {
4521: $string =~ s/^(.*?)=//;
1.267 albertel 4522: $key=&unescape($1);
1.265 albertel 4523: }
4524: $string =~ s/^=//;
4525:
4526: #value
4527: my $value='';
4528: if($string =~ /^__HASH_REF__/) {
4529: ($value, $string)=&str2hashref($string);
4530: if(defined($value->{'error'})) {
4531: $hash{'error'}='Bad data';
4532: return (\%hash, $string);
4533: }
4534: } elsif($string =~ /^__ARRAY_REF__/) {
4535: ($value, $string)=&str2arrayref($string);
4536: if($value->[0] eq 'Array reference error') {
4537: $hash{'error'}='Bad data';
4538: return (\%hash, $string);
4539: }
4540: } else {
4541: $value=&get_scalar(\$string,'__END_HASH_REF__');
4542: }
4543: $string =~ s/^&//;
4544:
4545: $hash{$key}=$value;
1.204 albertel 4546: }
1.265 albertel 4547:
4548: $string =~ s/^__END_HASH_REF__//;
4549:
4550: return (\%hash, $string);
1.204 albertel 4551: }
4552:
4553: sub str2array {
1.265 albertel 4554: my ($string)=@_;
4555: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
4556: return @$array;
4557: }
4558:
4559: sub str2arrayref {
1.204 albertel 4560: my ($string) = @_;
1.265 albertel 4561: my @array;
4562:
4563: if($string !~ /^__ARRAY_REF__/) {
4564: if (! ($string eq '' || !defined($string))) {
4565: $array[0]='Array reference error';
4566: }
4567: return (\@array, $string);
4568: }
4569:
4570: $string =~ s/^__ARRAY_REF__//;
4571:
4572: while($string !~ /^__END_ARRAY_REF__/) {
4573: my $value='';
4574: if($string =~ /^__HASH_REF__/) {
4575: ($value, $string)=&str2hashref($string);
4576: if(defined($value->{'error'})) {
4577: $array[0] ='Array reference error';
4578: return (\@array, $string);
4579: }
4580: } elsif($string =~ /^__ARRAY_REF__/) {
4581: ($value, $string)=&str2arrayref($string);
4582: if($value->[0] eq 'Array reference error') {
4583: $array[0] ='Array reference error';
4584: return (\@array, $string);
4585: }
4586: } else {
4587: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
4588: }
4589: $string =~ s/^&//;
4590:
4591: push(@array, $value);
1.191 harris41 4592: }
1.265 albertel 4593:
4594: $string =~ s/^__END_ARRAY_REF__//;
4595:
4596: return (\@array, $string);
1.168 albertel 4597: }
4598:
1.167 albertel 4599: # -------------------------------------------------------------------Temp Store
4600:
1.168 albertel 4601: sub tmpreset {
4602: my ($symb,$namespace,$domain,$stuname) = @_;
4603: if (!$symb) {
4604: $symb=&symbread();
1.620 albertel 4605: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4606: }
4607: $symb=escape($symb);
4608:
1.620 albertel 4609: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 4610: $namespace=~s/\//\_/g;
4611: $namespace=~s/\W//g;
4612:
1.620 albertel 4613: if (!$domain) { $domain=$env{'user.domain'}; }
4614: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4615: if ($domain eq 'public' && $stuname eq 'public') {
4616: $stuname=$ENV{'REMOTE_ADDR'};
4617: }
1.1117 foxr 4618: my $path=LONCAPA::tempdir();
1.168 albertel 4619: my %hash;
4620: if (tie(%hash,'GDBM_File',
4621: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4622: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 4623: foreach my $key (keys(%hash)) {
1.180 albertel 4624: if ($key=~ /:$symb/) {
1.168 albertel 4625: delete($hash{$key});
4626: }
4627: }
4628: }
4629: }
4630:
1.167 albertel 4631: sub tmpstore {
1.168 albertel 4632: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4633:
4634: if (!$symb) {
4635: $symb=&symbread();
1.620 albertel 4636: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4637: }
4638: $symb=escape($symb);
4639:
4640: if (!$namespace) {
4641: # I don't think we would ever want to store this for a course.
4642: # it seems this will only be used if we don't have a course.
1.620 albertel 4643: #$namespace=$env{'request.course.id'};
1.168 albertel 4644: #if (!$namespace) {
1.620 albertel 4645: $namespace=$env{'request.state'};
1.168 albertel 4646: #}
4647: }
4648: $namespace=~s/\//\_/g;
4649: $namespace=~s/\W//g;
1.620 albertel 4650: if (!$domain) { $domain=$env{'user.domain'}; }
4651: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4652: if ($domain eq 'public' && $stuname eq 'public') {
4653: $stuname=$ENV{'REMOTE_ADDR'};
4654: }
1.168 albertel 4655: my $now=time;
4656: my %hash;
1.1117 foxr 4657: my $path=LONCAPA::tempdir();
1.168 albertel 4658: if (tie(%hash,'GDBM_File',
4659: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4660: &GDBM_WRCREAT(),0640)) {
1.168 albertel 4661: $hash{"version:$symb"}++;
4662: my $version=$hash{"version:$symb"};
4663: my $allkeys='';
4664: foreach my $key (keys(%$storehash)) {
4665: $allkeys.=$key.':';
1.591 albertel 4666: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 4667: }
4668: $hash{"$version:$symb:timestamp"}=$now;
4669: $allkeys.='timestamp';
4670: $hash{"$version:keys:$symb"}=$allkeys;
4671: if (untie(%hash)) {
4672: return 'ok';
4673: } else {
4674: return "error:$!";
4675: }
4676: } else {
4677: return "error:$!";
4678: }
4679: }
1.167 albertel 4680:
1.168 albertel 4681: # -----------------------------------------------------------------Temp Restore
1.167 albertel 4682:
1.168 albertel 4683: sub tmprestore {
4684: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 4685:
1.168 albertel 4686: if (!$symb) {
4687: $symb=&symbread();
1.620 albertel 4688: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 4689: }
4690: $symb=escape($symb);
4691:
1.620 albertel 4692: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 4693:
1.620 albertel 4694: if (!$domain) { $domain=$env{'user.domain'}; }
4695: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 4696: if ($domain eq 'public' && $stuname eq 'public') {
4697: $stuname=$ENV{'REMOTE_ADDR'};
4698: }
1.168 albertel 4699: my %returnhash;
4700: $namespace=~s/\//\_/g;
4701: $namespace=~s/\W//g;
4702: my %hash;
1.1117 foxr 4703: my $path=LONCAPA::tempdir();
1.168 albertel 4704: if (tie(%hash,'GDBM_File',
4705: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 4706: &GDBM_READER(),0640)) {
1.168 albertel 4707: my $version=$hash{"version:$symb"};
4708: $returnhash{'version'}=$version;
4709: my $scope;
4710: for ($scope=1;$scope<=$version;$scope++) {
4711: my $vkeys=$hash{"$scope:keys:$symb"};
4712: my @keys=split(/:/,$vkeys);
4713: my $key;
4714: $returnhash{"$scope:keys"}=$vkeys;
4715: foreach $key (@keys) {
1.591 albertel 4716: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
4717: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 4718: }
4719: }
1.168 albertel 4720: if (!(untie(%hash))) {
4721: return "error:$!";
4722: }
4723: } else {
4724: return "error:$!";
4725: }
4726: return %returnhash;
1.167 albertel 4727: }
4728:
1.9 www 4729: # ----------------------------------------------------------------------- Store
4730:
4731: sub store {
1.124 www 4732: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4733: my $home='';
4734:
1.168 albertel 4735: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4736:
1.213 www 4737: $symb=&symbclean($symb);
1.122 albertel 4738: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4739:
1.620 albertel 4740: if (!$domain) { $domain=$env{'user.domain'}; }
4741: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4742:
4743: &devalidate($symb,$stuname,$domain);
1.109 www 4744:
4745: $symb=escape($symb);
1.187 www 4746: if (!$namespace) {
1.620 albertel 4747: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4748: return '';
4749: }
4750: }
1.620 albertel 4751: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4752:
4753: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4754: $$storehash{'host'}=$perlvar{'lonHostID'};
4755:
1.12 www 4756: my $namevalue='';
1.800 albertel 4757: foreach my $key (keys(%$storehash)) {
4758: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4759: }
1.12 www 4760: $namevalue=~s/\&$//;
1.187 www 4761: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 4762: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 4763: }
4764:
1.47 www 4765: # -------------------------------------------------------------- Critical Store
4766:
4767: sub cstore {
1.124 www 4768: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
4769: my $home='';
4770:
1.168 albertel 4771: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4772:
1.213 www 4773: $symb=&symbclean($symb);
1.122 albertel 4774: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 4775:
1.620 albertel 4776: if (!$domain) { $domain=$env{'user.domain'}; }
4777: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 4778:
4779: &devalidate($symb,$stuname,$domain);
1.109 www 4780:
4781: $symb=escape($symb);
1.187 www 4782: if (!$namespace) {
1.620 albertel 4783: unless ($namespace=$env{'request.course.id'}) {
1.187 www 4784: return '';
4785: }
4786: }
1.620 albertel 4787: if (!$home) { $home=$env{'user.home'}; }
1.447 www 4788:
4789: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
4790: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 4791:
1.47 www 4792: my $namevalue='';
1.800 albertel 4793: foreach my $key (keys(%$storehash)) {
4794: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 4795: }
1.47 www 4796: $namevalue=~s/\&$//;
1.187 www 4797: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 4798: return critical
4799: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 4800: }
4801:
1.9 www 4802: # --------------------------------------------------------------------- Restore
4803:
4804: sub restore {
1.124 www 4805: my ($symb,$namespace,$domain,$stuname) = @_;
4806: my $home='';
4807:
1.168 albertel 4808: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 4809:
1.122 albertel 4810: if (!$symb) {
4811: unless ($symb=escape(&symbread())) { return ''; }
4812: } else {
1.213 www 4813: $symb=&escape(&symbclean($symb));
1.122 albertel 4814: }
1.188 www 4815: if (!$namespace) {
1.620 albertel 4816: unless ($namespace=$env{'request.course.id'}) {
1.188 www 4817: return '';
4818: }
4819: }
1.620 albertel 4820: if (!$domain) { $domain=$env{'user.domain'}; }
4821: if (!$stuname) { $stuname=$env{'user.name'}; }
4822: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 4823: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
4824:
1.12 www 4825: my %returnhash=();
1.800 albertel 4826: foreach my $line (split(/\&/,$answer)) {
4827: my ($name,$value)=split(/\=/,$line);
1.591 albertel 4828: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 4829: }
1.75 www 4830: my $version;
4831: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 4832: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
4833: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 4834: }
1.75 www 4835: }
1.13 www 4836: return %returnhash;
1.34 www 4837: }
4838:
4839: # ---------------------------------------------------------- Course Description
1.1118 foxr 4840: #
4841: #
1.34 www 4842:
4843: sub coursedescription {
1.731 albertel 4844: my ($courseid,$args)=@_;
1.34 www 4845: $courseid=~s/^\///;
1.49 www 4846: $courseid=~s/\_/\//g;
1.34 www 4847: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 4848: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 4849: my $normalid=$cdomain.'_'.$cnum;
4850: # need to always cache even if we get errors otherwise we keep
4851: # trying and trying and trying to get the course description.
4852: my %envhash=();
4853: my %returnhash=();
1.731 albertel 4854:
4855: my $expiretime=600;
4856: if ($env{'request.course.id'} eq $normalid) {
4857: $expiretime=120;
4858: }
4859:
4860: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
4861: if (!$args->{'freshen_cache'}
4862: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
4863: foreach my $key (keys(%env)) {
4864: next if ($key !~ /^\Q$prefix\E(.*)/);
4865: my ($setting) = $1;
4866: $returnhash{$setting} = $env{$key};
4867: }
4868: return %returnhash;
4869: }
4870:
1.1118 foxr 4871: # get the data again
4872:
1.731 albertel 4873: if (!$args->{'one_time'}) {
4874: $envhash{'course.'.$normalid.'.last_cache'}=time;
4875: }
1.811 albertel 4876:
1.34 www 4877: if ($chome ne 'no_host') {
1.302 albertel 4878: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 4879: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 4880: my $username = $env{'user.name'}; # Defult username
4881: if(defined $args->{'user'}) {
4882: $username = $args->{'user'};
4883: }
1.129 albertel 4884: $returnhash{'home'}= $chome;
4885: $returnhash{'domain'} = $cdomain;
4886: $returnhash{'num'} = $cnum;
1.741 raeburn 4887: if (!defined($returnhash{'type'})) {
4888: $returnhash{'type'} = 'Course';
4889: }
1.130 albertel 4890: while (my ($name,$value) = each %returnhash) {
1.53 www 4891: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 4892: }
1.270 www 4893: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 4894: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 4895: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 4896: $envhash{'course.'.$normalid.'.home'}=$chome;
4897: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
4898: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 4899: }
4900: }
1.731 albertel 4901: if (!$args->{'one_time'}) {
1.949 raeburn 4902: &appenv(\%envhash);
1.731 albertel 4903: }
1.302 albertel 4904: return %returnhash;
1.461 www 4905: }
4906:
1.1080 raeburn 4907: sub update_released_required {
4908: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
4909: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
4910: $cid = $env{'request.course.id'};
4911: $cdom = $env{'course.'.$cid.'.domain'};
4912: $cnum = $env{'course.'.$cid.'.num'};
4913: $chome = $env{'course.'.$cid.'.home'};
4914: }
4915: if ($needsrelease) {
4916: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
4917: my $needsupdate;
4918: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
4919: $needsupdate = 1;
4920: } else {
4921: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
4922: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
4923: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
4924: $needsupdate = 1;
4925: }
4926: }
4927: if ($needsupdate) {
4928: my %needshash = (
4929: 'internal.releaserequired' => $needsrelease,
4930: );
4931: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
4932: if ($putresult eq 'ok') {
4933: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
4934: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
4935: if (ref($crsinfo{$cid}) eq 'HASH') {
4936: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
4937: &courseidput($cdom,\%crsinfo,$chome,'notime');
4938: }
4939: }
4940: }
4941: }
4942: return;
4943: }
4944:
1.461 www 4945: # -------------------------------------------------See if a user is privileged
4946:
4947: sub privileged {
4948: my ($username,$domain)=@_;
1.1170 droeschl 4949:
4950: my %rolesdump = &dump("roles", $domain, $username) or return 0;
4951: my $now = time;
4952:
4953: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
4954: my ($trole, $tend, $tstart) = split(/_/, $role);
4955: if (($trole eq 'dc') || ($trole eq 'su')) {
4956: return 1 unless ($tend && $tend < $now)
4957: or ($tstart && $tstart > $now);
4958: }
1.461 www 4959: }
1.1170 droeschl 4960:
1.461 www 4961: return 0;
1.9 www 4962: }
1.1 albertel 4963:
1.103 harris41 4964: # -------------------------------------------------------- Get user privileges
1.11 www 4965:
4966: sub rolesinit {
1.1169 droeschl 4967: my ($domain, $username) = @_;
4968: my %userroles = ('user.login.time' => time);
4969: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
4970:
4971: # firstaccess and timerinterval are related to timed maps/resources.
4972: # also, blocking can be triggered by an activating timer
4973: # it's saved in the user's %env.
4974: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
4975: my %timerinterval = &dump('timerinterval', $domain, $username);
4976: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
4977: %timerintchk, %timerintenv);
4978:
1.1162 raeburn 4979: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 4980: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 4981: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
4982: }
1.1169 droeschl 4983:
1.1162 raeburn 4984: foreach my $key (keys(%timerinterval)) {
4985: my ($cid,$rest) = split(/\0/,$key);
4986: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
4987: }
1.1169 droeschl 4988:
1.11 www 4989: my %allroles=();
1.1162 raeburn 4990: my %allgroups=();
1.11 www 4991:
1.1169 droeschl 4992: for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
4993: my $role = $rolesdump{$area};
4994: $area =~ s/\_\w\w$//;
4995:
4996: my ($trole, $tend, $tstart, $group_privs);
4997:
4998: if ($role =~ /^cr/) {
4999: # Custom role, defined by a user
5000: # e.g., user.role.cr/msu/smith/mynewrole
5001: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
5002: $trole = $1;
5003: ($tend, $tstart) = split('_', $2);
5004: } else {
5005: $trole = $role;
5006: }
5007: } elsif ($role =~ m|^gr/|) {
5008: # Role of member in a group, defined within a course/community
5009: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
5010: ($trole, $tend, $tstart) = split(/_/, $role);
5011: next if $tstart eq '-1';
5012: ($trole, $group_privs) = split(/\//, $trole);
5013: $group_privs = &unescape($group_privs);
5014: } else {
5015: # Just a normal role, defined in roles.tab
5016: ($trole, $tend, $tstart) = split(/_/,$role);
5017: }
5018:
5019: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
5020: $username);
5021: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
5022:
5023: # role expired or not available yet?
5024: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
5025: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
5026:
5027: next if $area eq '' or $trole eq '';
5028:
5029: my $spec = "$trole.$area";
5030: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5031:
5032: if ($trole =~ /^cr\//) {
5033: # Custom role, defined by a user
5034: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5035: } elsif ($trole eq 'gr') {
5036: # Role of a member in a group, defined within a course/community
5037: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5038: next;
5039: } else {
5040: # Normal role, defined in roles.tab
5041: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5042: }
5043:
5044: my $cid = $tdomain.'_'.$trest;
5045: unless ($firstaccchk{$cid}) {
5046: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
5047: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
5048: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
5049: $coursetimerstarts{$cid}{$item};
5050: }
5051: }
5052: $firstaccchk{$cid} = 1;
5053: }
5054: unless ($timerintchk{$cid}) {
5055: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
5056: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
5057: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
5058: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 5059: }
1.12 www 5060: }
1.1169 droeschl 5061: $timerintchk{$cid} = 1;
1.191 harris41 5062: }
1.11 www 5063: }
1.1169 droeschl 5064:
5065: @userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
5066: \%allroles, \%allgroups);
5067: $env{'user.adv'} = $userroles{'user.adv'};
5068:
1.1162 raeburn 5069: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 5070: }
5071:
1.567 raeburn 5072: sub set_arearole {
5073: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
5074: # log the associated role with the area
5075: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 5076: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 5077: }
5078:
5079: sub custom_roleprivs {
5080: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
5081: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
5082: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 5083: if (&hostname($homsvr) ne '') {
1.567 raeburn 5084: my ($rdummy,$roledef)=
5085: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
5086: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
5087: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
5088: if (defined($syspriv)) {
1.1043 raeburn 5089: if ($trest =~ /^$match_community$/) {
5090: $syspriv =~ s/bre\&S//;
5091: }
1.567 raeburn 5092: $$allroles{'cm./'}.=':'.$syspriv;
5093: $$allroles{$spec.'./'}.=':'.$syspriv;
5094: }
5095: if ($tdomain ne '') {
5096: if (defined($dompriv)) {
5097: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
5098: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
5099: }
5100: if (($trest ne '') && (defined($coursepriv))) {
5101: $$allroles{'cm.'.$area}.=':'.$coursepriv;
5102: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
5103: }
5104: }
5105: }
5106: }
5107: }
5108:
1.678 raeburn 5109: sub group_roleprivs {
5110: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
5111: my $access = 1;
5112: my $now = time;
5113: if (($tend!=0) && ($tend<$now)) { $access = 0; }
5114: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
5115: if ($access) {
1.811 albertel 5116: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 5117: $$allgroups{$course}{$group} .=':'.$group_privs;
5118: }
5119: }
1.567 raeburn 5120:
5121: sub standard_roleprivs {
5122: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
5123: if (defined($pr{$trole.':s'})) {
5124: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
5125: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
5126: }
5127: if ($tdomain ne '') {
5128: if (defined($pr{$trole.':d'})) {
5129: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5130: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5131: }
5132: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
5133: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
5134: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
5135: }
5136: }
5137: }
5138:
5139: sub set_userprivs {
1.1064 raeburn 5140: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 5141: my $author=0;
5142: my $adv=0;
1.678 raeburn 5143: my %grouproles = ();
5144: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 5145: my @groupkeys;
1.1000 raeburn 5146: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 5147: push(@groupkeys,$role);
5148: }
5149: if (ref($groups_roles) eq 'HASH') {
5150: foreach my $key (keys(%{$groups_roles})) {
5151: unless (grep(/^\Q$key\E$/,@groupkeys)) {
5152: push(@groupkeys,$key);
5153: }
5154: }
5155: }
5156: if (@groupkeys > 0) {
5157: foreach my $role (@groupkeys) {
5158: my ($trole,$area,$sec,$extendedarea);
5159: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
5160: $trole = $1;
5161: $area = $2;
5162: $sec = $3;
5163: $extendedarea = $area.$sec;
5164: if (exists($$allgroups{$area})) {
5165: foreach my $group (keys(%{$$allgroups{$area}})) {
5166: my $spec = $trole.'.'.$extendedarea;
5167: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 5168: $$allgroups{$area}{$group};
1.1064 raeburn 5169: }
1.678 raeburn 5170: }
5171: }
5172: }
5173: }
5174: }
1.800 albertel 5175: foreach my $group (keys(%grouproles)) {
5176: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 5177: }
1.800 albertel 5178: foreach my $role (keys(%{$allroles})) {
5179: my %thesepriv;
1.941 raeburn 5180: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 5181: foreach my $item (split(/:/,$$allroles{$role})) {
5182: if ($item ne '') {
5183: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 5184: if ($restrictions eq '') {
5185: $thesepriv{$privilege}='F';
5186: } elsif ($thesepriv{$privilege} ne 'F') {
5187: $thesepriv{$privilege}.=$restrictions;
5188: }
5189: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
5190: }
5191: }
5192: my $thesestr='';
1.1104 raeburn 5193: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 5194: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
5195: }
5196: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 5197: }
5198: return ($author,$adv);
5199: }
5200:
1.994 raeburn 5201: sub role_status {
1.1104 raeburn 5202: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 5203: my @pwhere = ();
5204: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
5205: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
5206: unless (!defined($$role) || $$role eq '') {
5207: $$where=join('.',@pwhere);
5208: $$trolecode=$$role.'.'.$$where;
5209: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
5210: $$tstatus='is';
1.1104 raeburn 5211: if ($$tstart && $$tstart>$update) {
1.994 raeburn 5212: $$tstatus='future';
1.1034 raeburn 5213: if ($$tstart<$now) {
5214: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 5215: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 5216: my (%allroles,%allgroups,$group_privs,
5217: %groups_roles,@rolecodes);
1.1002 raeburn 5218: my %userroles = (
5219: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
5220: );
1.1064 raeburn 5221: @rolecodes = ('cm');
1.1002 raeburn 5222: my $spec=$$role.'.'.$$where;
5223: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
5224: if ($$role =~ /^cr\//) {
5225: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 5226: push(@rolecodes,'cr');
1.1002 raeburn 5227: } elsif ($$role eq 'gr') {
1.1064 raeburn 5228: push(@rolecodes,$$role);
1.1002 raeburn 5229: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
5230: $env{'user.name'});
1.1064 raeburn 5231: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 5232: (undef,my $group_privs) = split(/\//,$trole);
5233: $group_privs = &unescape($group_privs);
5234: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 5235: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 5236: &get_groups_roles($tdomain,$trest,
5237: \%course_roles,\@rolecodes,
5238: \%groups_roles);
1.1002 raeburn 5239: } else {
1.1064 raeburn 5240: push(@rolecodes,$$role);
1.1002 raeburn 5241: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
5242: }
1.1064 raeburn 5243: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
5244: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 5245: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
5246: }
5247: }
1.1034 raeburn 5248: $$tstatus = 'is';
1.1002 raeburn 5249: }
1.994 raeburn 5250: }
5251: if ($$tend) {
1.1104 raeburn 5252: if ($$tend<$update) {
1.994 raeburn 5253: $$tstatus='expired';
5254: } elsif ($$tend<$now) {
5255: $$tstatus='will_not';
5256: }
5257: }
5258: }
5259: }
5260: }
5261:
1.1104 raeburn 5262: sub get_groups_roles {
5263: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
5264: return unless((ref($cdom_courseroles) eq 'HASH') &&
5265: (ref($rolecodes) eq 'ARRAY') &&
5266: (ref($groups_roles) eq 'HASH'));
5267: if (keys(%{$cdom_courseroles}) > 0) {
5268: my ($cnum) = ($rest =~ /^($match_courseid)/);
5269: if ($cdom ne '' && $cnum ne '') {
5270: foreach my $key (keys(%{$cdom_courseroles})) {
5271: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
5272: my $crsrole = $1;
5273: my $crssec = $2;
5274: if ($crsrole =~ /^cr/) {
5275: unless (grep(/^cr$/,@{$rolecodes})) {
5276: push(@{$rolecodes},'cr');
5277: }
5278: } else {
5279: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
5280: push(@{$rolecodes},$crsrole);
5281: }
5282: }
5283: my $rolekey = "$crsrole./$cdom/$cnum";
5284: if ($crssec ne '') {
5285: $rolekey .= "/$crssec";
5286: }
5287: $rolekey .= './';
5288: $groups_roles->{$rolekey} = $rolecodes;
5289: }
5290: }
5291: }
5292: }
5293: return;
5294: }
5295:
5296: sub delete_env_groupprivs {
5297: my ($where,$courseroles,$possroles) = @_;
5298: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
5299: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
5300: unless (ref($courseroles->{$udom}) eq 'HASH') {
5301: %{$courseroles->{$udom}} =
5302: &get_my_roles('','','userroles',['active'],
5303: $possroles,[$udom],1);
5304: }
5305: if (ref($courseroles->{$udom}) eq 'HASH') {
5306: foreach my $item (keys(%{$courseroles->{$udom}})) {
5307: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
5308: my $area = '/'.$cdom.'/'.$cnum;
5309: my $privkey = "user.priv.$crsrole.$area";
5310: if ($crssec ne '') {
5311: $privkey .= '/'.$crssec;
5312: }
5313: $privkey .= ".$area/$group";
5314: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
5315: }
5316: }
5317: return;
5318: }
5319:
1.994 raeburn 5320: sub check_adhoc_privs {
1.1104 raeburn 5321: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
1.994 raeburn 5322: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1185 raeburn 5323: my $setprivs;
1.994 raeburn 5324: if ($env{$cckey}) {
5325: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 5326: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 5327: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1088 raeburn 5328: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5329: $setprivs = 1;
1.994 raeburn 5330: }
5331: } else {
1.1088 raeburn 5332: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
1.1185 raeburn 5333: $setprivs = 1;
1.994 raeburn 5334: }
1.1185 raeburn 5335: return $setprivs;
1.994 raeburn 5336: }
5337:
5338: sub set_adhoc_privileges {
5339: # role can be cc or ca
1.1088 raeburn 5340: my ($dcdom,$pickedcourse,$role,$caller) = @_;
1.994 raeburn 5341: my $area = '/'.$dcdom.'/'.$pickedcourse;
5342: my $spec = $role.'.'.$area;
5343: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
5344: $env{'user.name'});
5345: my %ccrole = ();
5346: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
5347: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
5348: &appenv(\%userroles,[$role,'cm']);
5349: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
1.1088 raeburn 5350: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
5351: &appenv( {'request.role' => $spec,
5352: 'request.role.domain' => $dcdom,
5353: 'request.course.sec' => ''
5354: }
5355: );
5356: my $tadv=0;
5357: if (&allowed('adv') eq 'F') { $tadv=1; }
5358: &appenv({'request.role.adv' => $tadv});
5359: }
1.994 raeburn 5360: }
5361:
1.12 www 5362: # --------------------------------------------------------------- get interface
5363:
5364: sub get {
1.131 albertel 5365: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5366: my $items='';
1.800 albertel 5367: foreach my $item (@$storearr) {
5368: $items.=&escape($item).'&';
1.191 harris41 5369: }
1.12 www 5370: $items=~s/\&$//;
1.620 albertel 5371: if (!$udomain) { $udomain=$env{'user.domain'}; }
5372: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 5373: my $uhome=&homeserver($uname,$udomain);
5374:
1.133 albertel 5375: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5376: my @pairs=split(/\&/,$rep);
1.273 albertel 5377: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
5378: return @pairs;
5379: }
1.15 www 5380: my %returnhash=();
1.42 www 5381: my $i=0;
1.800 albertel 5382: foreach my $item (@$storearr) {
5383: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5384: $i++;
1.191 harris41 5385: }
1.15 www 5386: return %returnhash;
1.27 www 5387: }
5388:
5389: # --------------------------------------------------------------- del interface
5390:
5391: sub del {
1.133 albertel 5392: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 5393: my $items='';
1.800 albertel 5394: foreach my $item (@$storearr) {
5395: $items.=&escape($item).'&';
1.191 harris41 5396: }
1.984 neumanie 5397:
1.27 www 5398: $items=~s/\&$//;
1.620 albertel 5399: if (!$udomain) { $udomain=$env{'user.domain'}; }
5400: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5401: my $uhome=&homeserver($uname,$udomain);
5402: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 5403: }
5404:
5405: # -------------------------------------------------------------- dump interface
5406:
1.1180 droeschl 5407: sub unserialize {
5408: my ($rep, $escapedkeys) = @_;
5409:
5410: return {} if $rep =~ /^error/;
5411:
5412: my %returnhash=();
5413: foreach my $item (split /\&/, $rep) {
5414: my ($key, $value) = split(/=/, $item, 2);
5415: $key = unescape($key) unless $escapedkeys;
5416: next if $key =~ /^error: 2 /;
5417: $returnhash{$key} = Apache::lonnet::thaw_unescape($value);
5418: }
5419: #return %returnhash;
5420: return \%returnhash;
5421: }
5422:
5423: # see Lond::dump_with_regexp
5424: # if $escapedkeys hash keys won't get unescaped.
1.15 www 5425: sub dump {
1.1180 droeschl 5426: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 5427: if (!$udomain) { $udomain=$env{'user.domain'}; }
5428: if (!$uname) { $uname=$env{'user.name'}; }
5429: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 5430:
1.1180 droeschl 5431: my $reply;
5432: if (grep { $_ eq $uhome } current_machine_ids()) {
5433: # user is hosted on this machine
5434: $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
5435: $uname, $namespace, $regexp, $range)), $loncaparevs{$uhome});
5436: return %{unserialize($reply, $escapedkeys)};
5437: }
1.755 albertel 5438: if ($regexp) {
5439: $regexp=&escape($regexp);
5440: } else {
5441: $regexp='.';
5442: }
1.1166 raeburn 5443: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 5444: my @pairs=split(/\&/,$rep);
5445: my %returnhash=();
1.1098 foxr 5446: if (!($rep =~ /^error/ )) {
5447: foreach my $item (@pairs) {
5448: my ($key,$value)=split(/=/,$item,2);
1.1180 droeschl 5449: $key = unescape($key) unless $escapedkeys;
5450: #$key = &unescape($key);
1.1098 foxr 5451: next if ($key =~ /^error: 2 /);
5452: $returnhash{$key}=&thaw_unescape($value);
5453: }
1.755 albertel 5454: }
5455: return %returnhash;
1.407 www 5456: }
5457:
1.1098 foxr 5458:
1.717 albertel 5459: # --------------------------------------------------------- dumpstore interface
5460:
5461: sub dumpstore {
5462: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1180 droeschl 5463: # same as dump but keys must be escaped. They may contain colon separated
5464: # lists of values that may themself contain colons (e.g. symbs).
5465: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 5466: }
5467:
1.407 www 5468: # -------------------------------------------------------------- keys interface
5469:
5470: sub getkeys {
5471: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 5472: if (!$udomain) { $udomain=$env{'user.domain'}; }
5473: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 5474: my $uhome=&homeserver($uname,$udomain);
5475: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
5476: my @keyarray=();
1.800 albertel 5477: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 5478: next if ($key =~ /^error: 2 /);
1.800 albertel 5479: push(@keyarray,&unescape($key));
1.407 www 5480: }
5481: return @keyarray;
1.318 matthew 5482: }
5483:
1.319 matthew 5484: # --------------------------------------------------------------- currentdump
5485: sub currentdump {
1.328 matthew 5486: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 5487: $courseid = $env{'request.course.id'} if (! defined($courseid));
5488: $sdom = $env{'user.domain'} if (! defined($sdom));
5489: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 5490: my $uhome = &homeserver($sname,$sdom);
1.1180 droeschl 5491: my $rep;
5492:
5493: if (grep { $_ eq $uhome } current_machine_ids()) {
5494: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
5495: $courseid)));
5496: } else {
5497: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
5498: }
5499:
1.318 matthew 5500: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 5501: #
1.318 matthew 5502: my %returnhash=();
1.319 matthew 5503: #
5504: if ($rep eq "unknown_cmd") {
5505: # an old lond will not know currentdump
5506: # Do a dump and make it look like a currentdump
1.822 albertel 5507: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 5508: return if ($tmp[0] =~ /^(error:|no_such_host)/);
5509: my %hash = @tmp;
5510: @tmp=();
1.424 matthew 5511: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 5512: } else {
5513: my @pairs=split(/\&/,$rep);
1.800 albertel 5514: foreach my $pair (@pairs) {
5515: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 5516: my ($symb,$param) = split(/:/,$key);
5517: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 5518: &thaw_unescape($value);
1.319 matthew 5519: }
1.191 harris41 5520: }
1.12 www 5521: return %returnhash;
1.424 matthew 5522: }
5523:
5524: sub convert_dump_to_currentdump{
5525: my %hash = %{shift()};
5526: my %returnhash;
5527: # Code ripped from lond, essentially. The only difference
5528: # here is the unescaping done by lonnet::dump(). Conceivably
5529: # we might run in to problems with parameter names =~ /^v\./
5530: while (my ($key,$value) = each(%hash)) {
5531: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 5532: $symb = &unescape($symb);
5533: $param = &unescape($param);
1.424 matthew 5534: next if ($v eq 'version' || $symb eq 'keys');
5535: next if (exists($returnhash{$symb}) &&
5536: exists($returnhash{$symb}->{$param}) &&
5537: $returnhash{$symb}->{'v.'.$param} > $v);
5538: $returnhash{$symb}->{$param}=$value;
5539: $returnhash{$symb}->{'v.'.$param}=$v;
5540: }
5541: #
5542: # Remove all of the keys in the hashes which keep track of
5543: # the version of the parameter.
5544: while (my ($symb,$param_hash) = each(%returnhash)) {
5545: # use a foreach because we are going to delete from the hash.
5546: foreach my $key (keys(%$param_hash)) {
5547: delete($param_hash->{$key}) if ($key =~ /^v\./);
5548: }
5549: }
5550: return \%returnhash;
1.12 www 5551: }
5552:
1.627 albertel 5553: # ------------------------------------------------------ critical inc interface
5554:
5555: sub cinc {
5556: return &inc(@_,'critical');
5557: }
5558:
1.449 matthew 5559: # --------------------------------------------------------------- inc interface
5560:
5561: sub inc {
1.627 albertel 5562: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 5563: if (!$udomain) { $udomain=$env{'user.domain'}; }
5564: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 5565: my $uhome=&homeserver($uname,$udomain);
5566: my $items='';
5567: if (! ref($store)) {
5568: # got a single value, so use that instead
5569: $items = &escape($store).'=&';
5570: } elsif (ref($store) eq 'SCALAR') {
5571: $items = &escape($$store).'=&';
5572: } elsif (ref($store) eq 'ARRAY') {
5573: $items = join('=&',map {&escape($_);} @{$store});
5574: } elsif (ref($store) eq 'HASH') {
5575: while (my($key,$value) = each(%{$store})) {
5576: $items.= &escape($key).'='.&escape($value).'&';
5577: }
5578: }
5579: $items=~s/\&$//;
1.627 albertel 5580: if ($critical) {
5581: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
5582: } else {
5583: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
5584: }
1.449 matthew 5585: }
5586:
1.12 www 5587: # --------------------------------------------------------------- put interface
5588:
5589: sub put {
1.134 albertel 5590: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5591: if (!$udomain) { $udomain=$env{'user.domain'}; }
5592: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5593: my $uhome=&homeserver($uname,$udomain);
1.12 www 5594: my $items='';
1.800 albertel 5595: foreach my $item (keys(%$storehash)) {
5596: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5597: }
1.12 www 5598: $items=~s/\&$//;
1.134 albertel 5599: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 5600: }
5601:
1.631 albertel 5602: # ------------------------------------------------------------ newput interface
5603:
5604: sub newput {
5605: my ($namespace,$storehash,$udomain,$uname)=@_;
5606: if (!$udomain) { $udomain=$env{'user.domain'}; }
5607: if (!$uname) { $uname=$env{'user.name'}; }
5608: my $uhome=&homeserver($uname,$udomain);
5609: my $items='';
5610: foreach my $key (keys(%$storehash)) {
5611: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
5612: }
5613: $items=~s/\&$//;
5614: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
5615: }
5616:
5617: # --------------------------------------------------------- putstore interface
5618:
1.524 raeburn 5619: sub putstore {
1.715 albertel 5620: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 5621: if (!$udomain) { $udomain=$env{'user.domain'}; }
5622: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 5623: my $uhome=&homeserver($uname,$udomain);
5624: my $items='';
1.715 albertel 5625: foreach my $key (keys(%$storehash)) {
5626: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 5627: }
1.715 albertel 5628: $items=~s/\&$//;
1.716 albertel 5629: my $esc_symb=&escape($symb);
5630: my $esc_v=&escape($version);
1.715 albertel 5631: my $reply =
1.716 albertel 5632: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 5633: $uhome);
5634: if ($reply eq 'unknown_cmd') {
1.716 albertel 5635: # gfall back to way things use to be done
1.715 albertel 5636: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
5637: $uname);
1.524 raeburn 5638: }
1.715 albertel 5639: return $reply;
5640: }
5641:
5642: sub old_putstore {
1.716 albertel 5643: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
5644: if (!$udomain) { $udomain=$env{'user.domain'}; }
5645: if (!$uname) { $uname=$env{'user.name'}; }
5646: my $uhome=&homeserver($uname,$udomain);
5647: my %newstorehash;
1.800 albertel 5648: foreach my $item (keys(%$storehash)) {
5649: my $key = $version.':'.&escape($symb).':'.$item;
5650: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 5651: }
5652: my $items='';
5653: my %allitems = ();
1.800 albertel 5654: foreach my $item (keys(%newstorehash)) {
5655: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 5656: my $key = $1.':keys:'.$2;
5657: $allitems{$key} .= $3.':';
5658: }
1.800 albertel 5659: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 5660: }
1.800 albertel 5661: foreach my $item (keys(%allitems)) {
5662: $allitems{$item} =~ s/\:$//;
5663: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 5664: }
5665: $items=~s/\&$//;
5666: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 5667: }
5668:
1.47 www 5669: # ------------------------------------------------------ critical put interface
5670:
5671: sub cput {
1.134 albertel 5672: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 5673: if (!$udomain) { $udomain=$env{'user.domain'}; }
5674: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 5675: my $uhome=&homeserver($uname,$udomain);
1.47 www 5676: my $items='';
1.800 albertel 5677: foreach my $item (keys(%$storehash)) {
5678: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 5679: }
1.47 www 5680: $items=~s/\&$//;
1.134 albertel 5681: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5682: }
5683:
5684: # -------------------------------------------------------------- eget interface
5685:
5686: sub eget {
1.133 albertel 5687: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 5688: my $items='';
1.800 albertel 5689: foreach my $item (@$storearr) {
5690: $items.=&escape($item).'&';
1.191 harris41 5691: }
1.12 www 5692: $items=~s/\&$//;
1.620 albertel 5693: if (!$udomain) { $udomain=$env{'user.domain'}; }
5694: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 5695: my $uhome=&homeserver($uname,$udomain);
5696: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 5697: my @pairs=split(/\&/,$rep);
5698: my %returnhash=();
1.42 www 5699: my $i=0;
1.800 albertel 5700: foreach my $item (@$storearr) {
5701: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 5702: $i++;
1.191 harris41 5703: }
1.12 www 5704: return %returnhash;
5705: }
5706:
1.667 albertel 5707: # ------------------------------------------------------------ tmpput interface
5708: sub tmpput {
1.802 raeburn 5709: my ($storehash,$server,$context)=@_;
1.667 albertel 5710: my $items='';
1.800 albertel 5711: foreach my $item (keys(%$storehash)) {
5712: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 5713: }
5714: $items=~s/\&$//;
1.802 raeburn 5715: if (defined($context)) {
5716: $items .= ':'.&escape($context);
5717: }
1.667 albertel 5718: return &reply("tmpput:$items",$server);
5719: }
5720:
5721: # ------------------------------------------------------------ tmpget interface
5722: sub tmpget {
1.688 albertel 5723: my ($token,$server)=@_;
5724: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5725: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 5726: my %returnhash;
5727: foreach my $item (split(/\&/,$rep)) {
5728: my ($key,$value)=split(/=/,$item);
1.951 raeburn 5729: next if ($key =~ /^error: 2 /);
1.667 albertel 5730: $returnhash{&unescape($key)}=&thaw_unescape($value);
5731: }
5732: return %returnhash;
5733: }
5734:
1.1113 raeburn 5735: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 5736: sub tmpdel {
5737: my ($token,$server)=@_;
5738: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
5739: return &reply("tmpdel:$token",$server);
5740: }
5741:
1.1198 raeburn 5742: # ------------------------------------------------------------ get_timebased_id
5743:
5744: sub get_timebased_id {
5745: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
5746: $maxtries) = @_;
5747: my ($newid,$error,$dellock);
5748: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
5749: return ('','ok','invalid call to get suffix');
5750: }
5751:
5752: # set defaults for any optional args for which values were not supplied
5753: if ($who eq '') {
5754: $who = $env{'user.name'}.':'.$env{'user.domain'};
5755: }
5756: if (!$locktries) {
5757: $locktries = 3;
5758: }
5759: if (!$maxtries) {
5760: $maxtries = 10;
5761: }
5762:
5763: if (($cdom eq '') || ($cnum eq '')) {
5764: if ($env{'request.course.id'}) {
5765: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5766: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5767: }
5768: if (($cdom eq '') || ($cnum eq '')) {
5769: return ('','ok','call to get suffix not in course context');
5770: }
5771: }
5772:
5773: # construct locking item
5774: my $lockhash = {
5775: $prefix."\0".'locked_'.$keyid => $who,
5776: };
5777: my $tries = 0;
5778:
5779: # attempt to get lock on nohist_$namespace file
5780: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5781: while (($gotlock ne 'ok') && $tries <$locktries) {
5782: $tries ++;
5783: sleep 1;
5784: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
5785: }
5786:
5787: # attempt to get unique identifier, based on current timestamp
5788: if ($gotlock eq 'ok') {
5789: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
5790: my $id = time;
5791: $newid = $id;
5792: my $idtries = 0;
5793: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
5794: if ($idtype eq 'concat') {
5795: $newid = $id.$idtries;
5796: } else {
5797: $newid ++;
5798: }
5799: $idtries ++;
5800: }
5801: if (!exists($inuse{$prefix."\0".$newid})) {
5802: my %new_item = (
5803: $prefix."\0".$newid => $who,
5804: );
5805: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
5806: $cdom,$cnum);
5807: if ($putresult ne 'ok') {
5808: undef($newid);
5809: $error = 'error saving new item: '.$putresult;
5810: }
5811: } else {
5812: $error = ('error: no unique suffix available for the new item ');
5813: }
5814: # remove lock
5815: my @del_lock = ($prefix."\0".'locked_'.$keyid);
5816: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
5817: } else {
5818: $error = "error: could not obtain lockfile\n";
5819: $dellock = 'ok';
5820: }
5821: return ($newid,$dellock,$error);
5822: }
5823:
1.765 albertel 5824: # -------------------------------------------------- portfolio access checking
5825:
5826: sub portfolio_access {
1.766 albertel 5827: my ($requrl) = @_;
1.765 albertel 5828: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
5829: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 5830: if ($result) {
5831: my %setters;
5832: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5833: my ($startblock,$endblock) =
5834: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
5835: if ($startblock && $endblock) {
5836: return 'B';
5837: }
5838: } else {
5839: my ($startblock,$endblock) =
5840: &Apache::loncommon::blockcheck(\%setters,'port');
5841: if ($startblock && $endblock) {
5842: return 'B';
5843: }
5844: }
5845: }
1.765 albertel 5846: if ($result eq 'ok') {
1.766 albertel 5847: return 'F';
1.765 albertel 5848: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 5849: return 'A';
1.765 albertel 5850: }
1.766 albertel 5851: return '';
1.765 albertel 5852: }
5853:
5854: sub get_portfolio_access {
1.767 albertel 5855: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
5856:
5857: if (!ref($access_hash)) {
5858: my $current_perms = &get_portfile_permissions($udom,$unum);
5859: my %access_controls = &get_access_controls($current_perms,$group,
5860: $file_name);
5861: $access_hash = $access_controls{$file_name};
5862: }
5863:
1.765 albertel 5864: my ($public,$guest,@domains,@users,@courses,@groups);
5865: my $now = time;
5866: if (ref($access_hash) eq 'HASH') {
5867: foreach my $key (keys(%{$access_hash})) {
5868: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5869: if ($start > $now) {
5870: next;
5871: }
5872: if ($end && $end<$now) {
5873: next;
5874: }
5875: if ($scope eq 'public') {
5876: $public = $key;
5877: last;
5878: } elsif ($scope eq 'guest') {
5879: $guest = $key;
5880: } elsif ($scope eq 'domains') {
5881: push(@domains,$key);
5882: } elsif ($scope eq 'users') {
5883: push(@users,$key);
5884: } elsif ($scope eq 'course') {
5885: push(@courses,$key);
5886: } elsif ($scope eq 'group') {
5887: push(@groups,$key);
5888: }
5889: }
5890: if ($public) {
5891: return 'ok';
5892: }
5893: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
5894: if ($guest) {
5895: return $guest;
5896: }
5897: } else {
5898: if (@domains > 0) {
5899: foreach my $domkey (@domains) {
5900: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
5901: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
5902: return 'ok';
5903: }
5904: }
5905: }
5906: }
5907: if (@users > 0) {
5908: foreach my $userkey (@users) {
1.865 raeburn 5909: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
5910: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
5911: if (ref($item) eq 'HASH') {
5912: if (($item->{'uname'} eq $env{'user.name'}) &&
5913: ($item->{'udom'} eq $env{'user.domain'})) {
5914: return 'ok';
5915: }
5916: }
5917: }
5918: }
1.765 albertel 5919: }
5920: }
5921: my %roleshash;
5922: my @courses_and_groups = @courses;
5923: push(@courses_and_groups,@groups);
5924: if (@courses_and_groups > 0) {
5925: my (%allgroups,%allroles);
5926: my ($start,$end,$role,$sec,$group);
5927: foreach my $envkey (%env) {
1.1060 raeburn 5928: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5929: my $cid = $2.'_'.$3;
5930: if ($1 eq 'gr') {
5931: $group = $4;
5932: $allgroups{$cid}{$group} = $env{$envkey};
5933: } else {
5934: if ($4 eq '') {
5935: $sec = 'none';
5936: } else {
5937: $sec = $4;
5938: }
5939: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5940: }
1.811 albertel 5941: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 5942: my $cid = $2.'_'.$3;
5943: if ($4 eq '') {
5944: $sec = 'none';
5945: } else {
5946: $sec = $4;
5947: }
5948: $allroles{$cid}{$1}{$sec} = $env{$envkey};
5949: }
5950: }
5951: if (keys(%allroles) == 0) {
5952: return;
5953: }
5954: foreach my $key (@courses_and_groups) {
5955: my %content = %{$$access_hash{$key}};
5956: my $cnum = $content{'number'};
5957: my $cdom = $content{'domain'};
5958: my $cid = $cdom.'_'.$cnum;
5959: if (!exists($allroles{$cid})) {
5960: next;
5961: }
5962: foreach my $role_id (keys(%{$content{'roles'}})) {
5963: my @sections = @{$content{'roles'}{$role_id}{'section'}};
5964: my @groups = @{$content{'roles'}{$role_id}{'group'}};
5965: my @status = @{$content{'roles'}{$role_id}{'access'}};
5966: my @roles = @{$content{'roles'}{$role_id}{'role'}};
5967: foreach my $role (keys(%{$allroles{$cid}})) {
5968: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
5969: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
5970: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
5971: if (grep/^all$/,@sections) {
5972: return 'ok';
5973: } else {
5974: if (grep/^$sec$/,@sections) {
5975: return 'ok';
5976: }
5977: }
5978: }
5979: }
5980: if (keys(%{$allgroups{$cid}}) == 0) {
5981: if (grep/^none$/,@groups) {
5982: return 'ok';
5983: }
5984: } else {
5985: if (grep/^all$/,@groups) {
5986: return 'ok';
5987: }
5988: foreach my $group (keys(%{$allgroups{$cid}})) {
5989: if (grep/^$group$/,@groups) {
5990: return 'ok';
5991: }
5992: }
5993: }
5994: }
5995: }
5996: }
5997: }
5998: }
5999: if ($guest) {
6000: return $guest;
6001: }
6002: }
6003: }
6004: return;
6005: }
6006:
6007: sub course_group_datechecker {
6008: my ($dates,$now,$status) = @_;
6009: my ($start,$end) = split(/\./,$dates);
6010: if (!$start && !$end) {
6011: return 'ok';
6012: }
6013: if (grep/^active$/,@{$status}) {
6014: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
6015: return 'ok';
6016: }
6017: }
6018: if (grep/^previous$/,@{$status}) {
6019: if ($end > $now ) {
6020: return 'ok';
6021: }
6022: }
6023: if (grep/^future$/,@{$status}) {
6024: if ($start > $now) {
6025: return 'ok';
6026: }
6027: }
6028: return;
6029: }
6030:
6031: sub parse_portfolio_url {
6032: my ($url) = @_;
6033:
6034: my ($type,$udom,$unum,$group,$file_name);
6035:
1.823 albertel 6036: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 6037: $type = 1;
6038: $udom = $1;
6039: $unum = $2;
6040: $file_name = $3;
1.823 albertel 6041: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 6042: $type = 2;
6043: $udom = $1;
6044: $unum = $2;
6045: $group = $3;
6046: $file_name = $3.'/'.$4;
6047: }
6048: if (wantarray) {
6049: return ($type,$udom,$unum,$file_name,$group);
6050: }
6051: return $type;
6052: }
6053:
6054: sub is_portfolio_url {
6055: my ($url) = @_;
6056: return scalar(&parse_portfolio_url($url));
6057: }
6058:
1.798 raeburn 6059: sub is_portfolio_file {
6060: my ($file) = @_;
1.820 raeburn 6061: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 6062: return 1;
6063: }
6064: return;
6065: }
6066:
1.976 raeburn 6067: sub usertools_access {
1.1084 raeburn 6068: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 6069: my ($access,%tools);
6070: if ($context eq '') {
6071: $context = 'tools';
6072: }
6073: if ($context eq 'requestcourses') {
6074: %tools = (
6075: official => 1,
6076: unofficial => 1,
1.1006 raeburn 6077: community => 1,
1.985 raeburn 6078: );
1.1183 raeburn 6079: } elsif ($context eq 'requestauthor') {
6080: %tools = (
6081: requestauthor => 1,
6082: );
1.985 raeburn 6083: } else {
6084: %tools = (
6085: aboutme => 1,
6086: blog => 1,
1.1177 raeburn 6087: webdav => 1,
1.985 raeburn 6088: portfolio => 1,
6089: );
6090: }
1.976 raeburn 6091: return if (!defined($tools{$tool}));
6092:
6093: if ((!defined($udom)) || (!defined($uname))) {
6094: $udom = $env{'user.domain'};
6095: $uname = $env{'user.name'};
6096: }
6097:
1.978 raeburn 6098: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6099: if ($action ne 'reload') {
1.985 raeburn 6100: if ($context eq 'requestcourses') {
6101: return $env{'environment.canrequest.'.$tool};
1.1183 raeburn 6102: } elsif ($context eq 'requestauthor') {
6103: return $env{'environment.canrequest.author'};
1.985 raeburn 6104: } else {
6105: return $env{'environment.availabletools.'.$tool};
6106: }
6107: }
1.976 raeburn 6108: }
6109:
1.1183 raeburn 6110: my ($toolstatus,$inststatus,$envkey);
6111: if ($context eq 'requestauthor') {
6112: $envkey = $context;
6113: } else {
6114: $envkey = $context.'.'.$tool;
6115: }
1.976 raeburn 6116:
1.985 raeburn 6117: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
6118: ($action ne 'reload')) {
1.1183 raeburn 6119: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 6120: $inststatus = $env{'environment.inststatus'};
6121: } else {
1.1084 raeburn 6122: if (ref($userenvref) eq 'HASH') {
1.1183 raeburn 6123: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 6124: $inststatus = $userenvref->{'inststatus'};
6125: } else {
1.1183 raeburn 6126: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
6127: $toolstatus = $userenv{$envkey};
1.1084 raeburn 6128: $inststatus = $userenv{'inststatus'};
6129: }
1.976 raeburn 6130: }
6131:
6132: if ($toolstatus ne '') {
6133: if ($toolstatus) {
6134: $access = 1;
6135: } else {
6136: $access = 0;
6137: }
6138: return $access;
6139: }
6140:
1.1084 raeburn 6141: my ($is_adv,%domdef);
6142: if (ref($is_advref) eq 'HASH') {
6143: $is_adv = $is_advref->{'is_adv'};
6144: } else {
6145: $is_adv = &is_advanced_user($udom,$uname);
6146: }
6147: if (ref($domdefref) eq 'HASH') {
6148: %domdef = %{$domdefref};
6149: } else {
6150: %domdef = &get_domain_defaults($udom);
6151: }
1.976 raeburn 6152: if (ref($domdef{$tool}) eq 'HASH') {
6153: if ($is_adv) {
6154: if ($domdef{$tool}{'_LC_adv'} ne '') {
6155: if ($domdef{$tool}{'_LC_adv'}) {
6156: $access = 1;
6157: } else {
6158: $access = 0;
6159: }
6160: return $access;
6161: }
6162: }
6163: if ($inststatus ne '') {
6164: my ($hasaccess,$hasnoaccess);
6165: foreach my $affiliation (split(/:/,$inststatus)) {
6166: if ($domdef{$tool}{$affiliation} ne '') {
6167: if ($domdef{$tool}{$affiliation}) {
6168: $hasaccess = 1;
6169: } else {
6170: $hasnoaccess = 1;
6171: }
6172: }
6173: }
6174: if ($hasaccess || $hasnoaccess) {
6175: if ($hasaccess) {
6176: $access = 1;
6177: } elsif ($hasnoaccess) {
6178: $access = 0;
6179: }
6180: return $access;
6181: }
6182: } else {
6183: if ($domdef{$tool}{'default'} ne '') {
6184: if ($domdef{$tool}{'default'}) {
6185: $access = 1;
6186: } elsif ($domdef{$tool}{'default'} == 0) {
6187: $access = 0;
6188: }
6189: return $access;
6190: }
6191: }
6192: } else {
1.1177 raeburn 6193: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 6194: $access = 1;
6195: } else {
6196: $access = 0;
6197: }
1.976 raeburn 6198: return $access;
6199: }
6200: }
6201:
1.1050 raeburn 6202: sub is_course_owner {
6203: my ($cdom,$cnum,$udom,$uname) = @_;
6204: if (($udom eq '') || ($uname eq '')) {
6205: $udom = $env{'user.domain'};
6206: $uname = $env{'user.name'};
6207: }
6208: unless (($udom eq '') || ($uname eq '')) {
6209: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
6210: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
6211: return 1;
6212: } else {
6213: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
6214: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
6215: return 1;
6216: }
6217: }
6218: }
6219: }
6220: return;
6221: }
6222:
1.976 raeburn 6223: sub is_advanced_user {
6224: my ($udom,$uname) = @_;
1.1085 raeburn 6225: if ($udom ne '' && $uname ne '') {
6226: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 6227: if (wantarray) {
6228: return ($env{'user.adv'},$env{'user.author'});
6229: } else {
6230: return $env{'user.adv'};
6231: }
1.1085 raeburn 6232: }
6233: }
1.976 raeburn 6234: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
6235: my %allroles;
1.1128 raeburn 6236: my ($is_adv,$is_author);
1.976 raeburn 6237: foreach my $role (keys(%roleshash)) {
6238: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
6239: my $area = '/'.$tdomain.'/'.$trest;
6240: if ($sec ne '') {
6241: $area .= '/'.$sec;
6242: }
6243: if (($area ne '') && ($trole ne '')) {
6244: my $spec=$trole.'.'.$area;
6245: if ($trole =~ /^cr\//) {
6246: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
6247: } elsif ($trole ne 'gr') {
6248: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
6249: }
1.1128 raeburn 6250: if ($trole eq 'au') {
6251: $is_author = 1;
6252: }
1.976 raeburn 6253: }
6254: }
6255: foreach my $role (keys(%allroles)) {
6256: last if ($is_adv);
6257: foreach my $item (split(/:/,$allroles{$role})) {
6258: if ($item ne '') {
6259: my ($privilege,$restrictions)=split(/&/,$item);
6260: if ($privilege eq 'adv') {
6261: $is_adv = 1;
6262: last;
6263: }
6264: }
6265: }
6266: }
1.1128 raeburn 6267: if (wantarray) {
6268: return ($is_adv,$is_author);
6269: }
1.976 raeburn 6270: return $is_adv;
6271: }
1.798 raeburn 6272:
1.1035 raeburn 6273: sub check_can_request {
1.1036 raeburn 6274: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 6275: my $canreq = 0;
6276: my ($types,$typename) = &Apache::loncommon::course_types();
6277: my @options = ('approval','validate','autolimit');
6278: my $optregex = join('|',@options);
6279: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
6280: foreach my $type (@{$types}) {
6281: if (&usertools_access($env{'user.name'},
6282: $env{'user.domain'},
6283: $type,undef,'requestcourses')) {
6284: $canreq ++;
1.1036 raeburn 6285: if (ref($request_domains) eq 'HASH') {
6286: push(@{$request_domains->{$type}},$env{'user.domain'});
6287: }
1.1035 raeburn 6288: if ($dom eq $env{'user.domain'}) {
6289: $can_request->{$type} = 1;
6290: }
6291: }
6292: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
6293: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
6294: if (@curr > 0) {
1.1036 raeburn 6295: foreach my $item (@curr) {
6296: if (ref($request_domains) eq 'HASH') {
6297: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
6298: if ($otherdom ne '') {
6299: if (ref($request_domains->{$type}) eq 'ARRAY') {
6300: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
6301: push(@{$request_domains->{$type}},$otherdom);
6302: }
6303: } else {
6304: push(@{$request_domains->{$type}},$otherdom);
6305: }
6306: }
6307: }
6308: }
6309: unless($dom eq $env{'user.domain'}) {
6310: $canreq ++;
1.1035 raeburn 6311: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
6312: $can_request->{$type} = 1;
6313: }
6314: }
6315: }
6316: }
6317: }
6318: }
6319: return $canreq;
6320: }
6321:
1.341 www 6322: # ---------------------------------------------- Custom access rule evaluation
6323:
6324: sub customaccess {
6325: my ($priv,$uri)=@_;
1.807 albertel 6326: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 6327: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 6328: $udom = &LONCAPA::clean_domain($udom);
6329: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 6330: my $access=0;
1.800 albertel 6331: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 6332: my ($effect,$realm,$role,$type)=split(/\:/,$right);
6333: if ($type eq 'user') {
6334: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 6335: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 6336: if ($tdom) {
6337: if ($tdom ne $env{'user.domain'}) { next; }
6338: }
1.896 albertel 6339: if ($tuname) {
6340: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 6341: }
6342: $access=($effect eq 'allow');
6343: last;
6344: }
6345: } else {
6346: if ($role) {
6347: if ($role ne $urole) { next; }
6348: }
6349: foreach my $scope (split(/\s*\,\s*/,$realm)) {
6350: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
6351: if ($tdom) {
6352: if ($tdom ne $udom) { next; }
6353: }
6354: if ($tcrs) {
6355: if ($tcrs ne $ucrs) { next; }
6356: }
6357: if ($tsec) {
6358: if ($tsec ne $usec) { next; }
6359: }
6360: $access=($effect eq 'allow');
6361: last;
6362: }
6363: if ($realm eq '' && $role eq '') {
6364: $access=($effect eq 'allow');
6365: }
1.402 bowersj2 6366: }
1.341 www 6367: }
6368: return $access;
6369: }
6370:
1.103 harris41 6371: # ------------------------------------------------- Check for a user privilege
1.12 www 6372:
6373: sub allowed {
1.810 raeburn 6374: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 6375: my $ver_orguri=$uri;
1.439 www 6376: $uri=&deversion($uri);
1.152 www 6377: my $orguri=$uri;
1.52 www 6378: $uri=&declutter($uri);
1.809 raeburn 6379:
1.810 raeburn 6380: if ($priv eq 'evb') {
6381: # Evade communication block restrictions for specified role in a course
6382: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
6383: return $1;
6384: } else {
6385: return;
6386: }
6387: }
6388:
1.620 albertel 6389: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 6390: # Free bre access to adm and meta resources
1.775 albertel 6391: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 6392: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
6393: && ($priv eq 'bre')) {
1.14 www 6394: return 'F';
1.159 www 6395: }
6396:
1.545 banghart 6397: # Free bre access to user's own portfolio contents
1.714 raeburn 6398: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 6399: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 6400: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 6401: my %setters;
6402: my ($startblock,$endblock) =
6403: &Apache::loncommon::blockcheck(\%setters,'port');
6404: if ($startblock && $endblock) {
6405: return 'B';
6406: } else {
6407: return 'F';
6408: }
1.545 banghart 6409: }
6410:
1.762 raeburn 6411: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 6412: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
6413: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
6414: if (exists($env{'request.course.id'})) {
6415: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6416: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6417: if (($domain eq $cdom) && ($name eq $cnum)) {
6418: my $courseprivid=$env{'request.course.id'};
6419: $courseprivid=~s/\_/\//;
6420: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
6421: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
6422: return $1;
1.762 raeburn 6423: } else {
6424: if ($env{'request.course.sec'}) {
6425: $courseprivid.='/'.$env{'request.course.sec'};
6426: }
6427: if ($env{'user.priv.'.$env{'request.role'}.'./'.
6428: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
6429: return $2;
6430: }
1.714 raeburn 6431: }
6432: }
6433: }
6434: }
6435:
1.159 www 6436: # Free bre to public access
6437:
6438: if ($priv eq 'bre') {
1.238 www 6439: my $copyright=&metadata($uri,'copyright');
1.620 albertel 6440: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 6441: return 'F';
6442: }
1.238 www 6443: if ($copyright eq 'priv') {
6444: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6445: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 6446: return '';
6447: }
6448: }
6449: if ($copyright eq 'domain') {
6450: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 6451: unless (($env{'user.domain'} eq $1) ||
6452: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 6453: return '';
6454: }
1.262 matthew 6455: }
1.620 albertel 6456: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 6457: # Library role, so allow browsing of resources in this domain.
6458: return 'F';
1.238 www 6459: }
1.341 www 6460: if ($copyright eq 'custom') {
6461: unless (&customaccess($priv,$uri)) { return ''; }
6462: }
1.14 www 6463: }
1.264 matthew 6464: # Domain coordinator is trying to create a course
1.620 albertel 6465: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 6466: # uri is the requested domain in this case.
6467: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 6468: # a role of dc for the domain in question.
1.620 albertel 6469: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 6470: }
1.29 www 6471:
1.52 www 6472: my $thisallowed='';
6473: my $statecond=0;
6474: my $courseprivid='';
6475:
1.1039 raeburn 6476: my $ownaccess;
1.1043 raeburn 6477: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 6478: if (($priv eq 'bro') && ($env{'user.author'})) {
6479: if ($uri eq '') {
6480: $ownaccess = 1;
6481: } else {
6482: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
6483: my $udom = $env{'user.domain'};
6484: my $uname = $env{'user.name'};
6485: if ($uri =~ m{^\Q$udom\E/?$}) {
6486: $ownaccess = 1;
1.1040 raeburn 6487: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 6488: unless ($uri =~ m{\.\./}) {
6489: $ownaccess = 1;
6490: }
6491: } elsif (($udom ne 'public') && ($uname ne 'public')) {
6492: my $now = time;
6493: if ($uri =~ m{^([^/]+)/?$}) {
6494: my $adom = $1;
6495: foreach my $key (keys(%env)) {
1.1042 raeburn 6496: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 6497: my ($start,$end) = split('.',$env{$key});
6498: if (($now >= $start) && (!$end || $end < $now)) {
6499: $ownaccess = 1;
6500: last;
6501: }
6502: }
6503: }
6504: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
6505: my $adom = $1;
6506: my $aname = $2;
1.1042 raeburn 6507: foreach my $role ('ca','aa') {
6508: if ($env{"user.role.$role./$adom/$aname"}) {
6509: my ($start,$end) =
6510: split('.',$env{"user.role.$role./$adom/$aname"});
6511: if (($now >= $start) && (!$end || $end < $now)) {
6512: $ownaccess = 1;
6513: last;
6514: }
1.1039 raeburn 6515: }
6516: }
6517: }
6518: }
6519: }
6520: }
6521: }
6522:
1.52 www 6523: # Course
6524:
1.620 albertel 6525: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6526: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6527: $thisallowed.=$1;
6528: }
1.52 www 6529: }
1.29 www 6530:
1.52 www 6531: # Domain
6532:
1.620 albertel 6533: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 6534: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6535: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6536: $thisallowed.=$1;
6537: }
1.12 www 6538: }
1.52 www 6539:
1.1141 raeburn 6540: # User who is not author or co-author might still be able to edit
6541: # resource of an author in the domain (e.g., if Domain Coordinator).
6542: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
6543: (&allowed('mdc',$env{'request.course.id'}))) {
6544: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
6545: $thisallowed.=$1;
6546: }
6547: }
6548:
1.52 www 6549: # Course: uri itself is a course
1.66 www 6550: my $courseuri=$uri;
6551: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 6552: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 6553:
1.620 albertel 6554: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 6555: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 6556: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 6557: $thisallowed.=$1;
6558: }
1.12 www 6559: }
1.29 www 6560:
1.665 albertel 6561: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 6562: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 6563: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 6564: $thisallowed='';
1.671 raeburn 6565: my ($match)=&is_on_map($uri);
6566: if ($match) {
6567: if ($env{'user.priv.'.$env{'request.role'}.'./'}
6568: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6569: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6570: if (@blockers > 0) {
6571: $thisallowed = 'B';
6572: } else {
6573: $thisallowed.=$1;
6574: }
1.671 raeburn 6575: }
6576: } else {
1.705 albertel 6577: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 6578: if ($refuri) {
6579: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 6580: $thisallowed='F';
1.671 raeburn 6581: } else {
6582: $refuri=&declutter($refuri);
6583: my ($match) = &is_on_map($refuri);
6584: if ($match) {
1.1162 raeburn 6585: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6586: if (@blockers > 0) {
6587: $thisallowed = 'B';
6588: } else {
6589: $thisallowed='F';
6590: }
1.671 raeburn 6591: }
1.669 raeburn 6592: }
1.671 raeburn 6593: }
6594: }
1.314 www 6595: }
1.492 albertel 6596:
1.766 albertel 6597: if ($priv eq 'bre'
6598: && $thisallowed ne 'F'
6599: && $thisallowed ne '2'
6600: && &is_portfolio_url($uri)) {
6601: $thisallowed = &portfolio_access($uri);
6602: }
6603:
1.52 www 6604: # Full access at system, domain or course-wide level? Exit.
1.29 www 6605: if ($thisallowed=~/F/) {
6606: return 'F';
6607: }
6608:
1.52 www 6609: # If this is generating or modifying users, exit with special codes
1.29 www 6610:
1.643 www 6611: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
6612: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 6613: my ($audom,$auname)=split('/',$uri);
1.643 www 6614: # no author name given, so this just checks on the general right to make a co-author in this domain
6615: unless ($auname) { return $thisallowed; }
6616: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 6617: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
6618: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
6619: ($audom ne $env{'request.role.domain'}))) { return ''; }
6620: }
1.52 www 6621: return $thisallowed;
6622: }
6623: #
1.103 harris41 6624: # Gathered so far: system, domain and course wide privileges
1.52 www 6625: #
6626: # Course: See if uri or referer is an individual resource that is part of
6627: # the course
6628:
1.620 albertel 6629: if ($env{'request.course.id'}) {
1.232 www 6630:
1.620 albertel 6631: $courseprivid=$env{'request.course.id'};
6632: if ($env{'request.course.sec'}) {
6633: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 6634: }
6635: $courseprivid=~s/\_/\//;
6636: my $checkreferer=1;
1.232 www 6637: my ($match,$cond)=&is_on_map($uri);
6638: if ($match) {
6639: $statecond=$cond;
1.620 albertel 6640: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6641: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6642: my $value = $1;
6643: if ($priv eq 'bre') {
6644: my @blockers = &has_comm_blocking($priv,$symb,$uri);
6645: if (@blockers > 0) {
6646: $thisallowed = 'B';
6647: } else {
6648: $thisallowed.=$value;
6649: }
6650: } else {
6651: $thisallowed.=$value;
6652: }
1.52 www 6653: $checkreferer=0;
6654: }
1.29 www 6655: }
1.83 www 6656:
1.148 www 6657: if ($checkreferer) {
1.620 albertel 6658: my $refuri=$env{'httpref.'.$orguri};
1.148 www 6659: unless ($refuri) {
1.800 albertel 6660: foreach my $key (keys(%env)) {
6661: if ($key=~/^httpref\..*\*/) {
6662: my $pattern=$key;
1.156 www 6663: $pattern=~s/^httpref\.\/res\///;
1.148 www 6664: $pattern=~s/\*/\[\^\/\]\+/g;
6665: $pattern=~s/\//\\\//g;
1.152 www 6666: if ($orguri=~/$pattern/) {
1.800 albertel 6667: $refuri=$env{$key};
1.148 www 6668: }
6669: }
1.191 harris41 6670: }
1.148 www 6671: }
1.232 www 6672:
1.148 www 6673: if ($refuri) {
1.152 www 6674: $refuri=&declutter($refuri);
1.232 www 6675: my ($match,$cond)=&is_on_map($refuri);
6676: if ($match) {
6677: my $refstatecond=$cond;
1.620 albertel 6678: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 6679: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 6680: my $value = $1;
6681: if ($priv eq 'bre') {
6682: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
6683: if (@blockers > 0) {
6684: $thisallowed = 'B';
6685: } else {
6686: $thisallowed.=$value;
6687: }
6688: } else {
6689: $thisallowed.=$value;
6690: }
1.53 www 6691: $uri=$refuri;
6692: $statecond=$refstatecond;
1.52 www 6693: }
6694: }
1.148 www 6695: }
1.29 www 6696: }
1.52 www 6697: }
1.29 www 6698:
1.52 www 6699: #
1.103 harris41 6700: # Gathered now: all privileges that could apply, and condition number
1.52 www 6701: #
6702: #
6703: # Full or no access?
6704: #
1.29 www 6705:
1.52 www 6706: if ($thisallowed=~/F/) {
6707: return 'F';
6708: }
1.29 www 6709:
1.52 www 6710: unless ($thisallowed) {
6711: return '';
6712: }
1.29 www 6713:
1.52 www 6714: # Restrictions exist, deal with them
6715: #
6716: # C:according to course preferences
6717: # R:according to resource settings
6718: # L:unless locked
6719: # X:according to user session state
6720: #
6721:
6722: # Possibly locked functionality, check all courses
1.54 www 6723: # Locks might take effect only after 10 minutes cache expiration for other
6724: # courses, and 2 minutes for current course
1.52 www 6725:
6726: my $envkey;
6727: if ($thisallowed=~/L/) {
1.1000 raeburn 6728: foreach $envkey (keys(%env)) {
1.54 www 6729: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
6730: my $courseid=$2;
6731: my $roleid=$1.'.'.$2;
1.92 www 6732: $courseid=~s/^\///;
1.54 www 6733: my $expiretime=600;
1.620 albertel 6734: if ($env{'request.role'} eq $roleid) {
1.54 www 6735: $expiretime=120;
6736: }
6737: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
6738: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 6739: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 6740: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 6741: }
1.620 albertel 6742: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
6743: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
6744: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
6745: &log($env{'user.domain'},$env{'user.name'},
6746: $env{'user.home'},
1.57 www 6747: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 6748: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6749: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6750: return '';
6751: }
6752: }
1.620 albertel 6753: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
6754: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
6755: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
6756: &log($env{'user.domain'},$env{'user.name'},
6757: $env{'user.home'},
1.57 www 6758: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 6759: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 6760: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 6761: return '';
6762: }
6763: }
6764: }
1.29 www 6765: }
1.52 www 6766: }
6767:
6768: #
6769: # Rest of the restrictions depend on selected course
6770: #
6771:
1.620 albertel 6772: unless ($env{'request.course.id'}) {
1.766 albertel 6773: if ($thisallowed eq 'A') {
6774: return 'A';
1.814 raeburn 6775: } elsif ($thisallowed eq 'B') {
6776: return 'B';
1.766 albertel 6777: } else {
6778: return '1';
6779: }
1.52 www 6780: }
1.29 www 6781:
1.52 www 6782: #
6783: # Now user is definitely in a course
6784: #
1.53 www 6785:
6786:
6787: # Course preferences
6788:
6789: if ($thisallowed=~/C/) {
1.620 albertel 6790: my $rolecode=(split(/\./,$env{'request.role'}))[0];
6791: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
6792: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 6793: =~/\Q$rolecode\E/) {
1.1103 raeburn 6794: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6795: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6796: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
6797: $env{'request.course.id'});
6798: }
1.237 www 6799: return '';
6800: }
6801:
1.620 albertel 6802: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 6803: =~/\Q$unamedom\E/) {
1.1103 raeburn 6804: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6805: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
6806: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
6807: $env{'request.course.id'});
6808: }
1.54 www 6809: return '';
6810: }
1.53 www 6811: }
6812:
6813: # Resource preferences
6814:
6815: if ($thisallowed=~/R/) {
1.620 albertel 6816: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 6817: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 6818: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 6819: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
6820: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
6821: }
6822: return '';
1.54 www 6823: }
1.53 www 6824: }
1.30 www 6825:
1.246 www 6826: # Restricted by state or randomout?
1.30 www 6827:
1.52 www 6828: if ($thisallowed=~/X/) {
1.620 albertel 6829: if ($env{'acc.randomout'}) {
1.579 albertel 6830: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 6831: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 6832: return '';
6833: }
1.247 www 6834: }
6835: if (&condval($statecond)) {
1.52 www 6836: return '2';
6837: } else {
6838: return '';
6839: }
6840: }
1.30 www 6841:
1.766 albertel 6842: if ($thisallowed eq 'A') {
6843: return 'A';
1.814 raeburn 6844: } elsif ($thisallowed eq 'B') {
6845: return 'B';
1.766 albertel 6846: }
1.52 www 6847: return 'F';
1.232 www 6848: }
1.1162 raeburn 6849:
1.1192 raeburn 6850: # ------------------------------------------- Check construction space access
6851:
6852: sub constructaccess {
6853: my ($url,$setpriv)=@_;
6854:
6855: # We do not allow editing of previous versions of files
6856: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
6857:
6858: # Get username and domain from URL
6859: my ($ownername,$ownerdomain,$ownerhome);
6860:
6861: ($ownerdomain,$ownername) =
6862: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)/});
6863:
6864: # The URL does not really point to any authorspace, forget it
6865: unless (($ownername) && ($ownerdomain)) { return ''; }
6866:
6867: # Now we need to see if the user has access to the authorspace of
6868: # $ownername at $ownerdomain
6869:
6870: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
6871: # Real author for this?
6872: $ownerhome = $env{'user.home'};
6873: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
6874: return ($ownername,$ownerdomain,$ownerhome);
6875: }
6876: } else {
6877: # Co-author for this?
6878: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
6879: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
6880: $ownerhome = &homeserver($ownername,$ownerdomain);
6881: return ($ownername,$ownerdomain,$ownerhome);
6882: }
6883: }
6884:
6885: # We don't have any access right now. If we are not possibly going to do anything about this,
6886: # we might as well leave
6887: unless ($setpriv) { return ''; }
6888:
6889: # Backdoor access?
6890: my $allowed=&allowed('eco',$ownerdomain);
6891: # Nope
6892: unless ($allowed) { return ''; }
6893: # Looks like we may have access, but could be locked by the owner of the construction space
6894: if ($allowed eq 'U') {
6895: my %blocked=&get('environment',['domcoord.author'],
6896: $ownerdomain,$ownername);
6897: # Is blocked by owner
6898: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
6899: }
6900: if (($allowed eq 'F') || ($allowed eq 'U')) {
6901: # Grant temporary access
6902: my $then=$env{'user.login.time'};
1.1209 raeburn 6903: my $update=$env{'user.update.time'};
1.1192 raeburn 6904: if (!$update) { $update = $then; }
6905: my $refresh=$env{'user.refresh.time'};
6906: if (!$refresh) { $refresh = $update; }
6907: my $now = time;
6908: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
6909: $now,'ca','constructaccess');
6910: $ownerhome = &homeserver($ownername,$ownerdomain);
6911: return($ownername,$ownerdomain,$ownerhome);
6912: }
6913: # No business here
6914: return '';
6915: }
6916:
1.1162 raeburn 6917: sub get_comm_blocks {
6918: my ($cdom,$cnum) = @_;
6919: if ($cdom eq '' || $cnum eq '') {
6920: return unless ($env{'request.course.id'});
6921: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6922: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6923: }
6924: my %commblocks;
6925: my $hashid=$cdom.'_'.$cnum;
6926: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
6927: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
6928: %commblocks = %{$blocksref};
6929: } else {
6930: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
6931: my $cachetime = 600;
6932: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
6933: }
6934: return %commblocks;
6935: }
6936:
6937: sub has_comm_blocking {
6938: my ($priv,$symb,$uri,$blocks) = @_;
6939: return unless ($env{'request.course.id'});
6940: return unless ($priv eq 'bre');
6941: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
6942: my %commblocks;
6943: if (ref($blocks) eq 'HASH') {
6944: %commblocks = %{$blocks};
6945: } else {
6946: %commblocks = &get_comm_blocks();
6947: }
6948: return unless (keys(%commblocks) > 0);
6949: if (!$symb) { $symb=&symbread($uri,1); }
6950: my ($map,$resid,undef)=&decode_symb($symb);
6951: my %tocheck = (
6952: maps => $map,
6953: resources => $symb,
6954: );
6955: my @blockers;
6956: my $now = time;
1.1163 raeburn 6957: my $navmap = Apache::lonnavmaps::navmap->new();
1.1162 raeburn 6958: foreach my $block (keys(%commblocks)) {
6959: if ($block =~ /^(\d+)____(\d+)$/) {
6960: my ($start,$end) = ($1,$2);
6961: if ($start <= $now && $end >= $now) {
6962: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6963: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6964: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
6965: if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
6966: unless (grep(/^\Q$block\E$/,@blockers)) {
6967: push(@blockers,$block);
6968: }
6969: }
6970: }
6971: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
6972: if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
6973: unless (grep(/^\Q$block\E$/,@blockers)) {
6974: push(@blockers,$block);
6975: }
6976: }
6977: }
6978: }
6979: }
6980: }
6981: } elsif ($block =~ /^firstaccess____(.+)$/) {
6982: my $item = $1;
1.1163 raeburn 6983: my @to_test;
1.1162 raeburn 6984: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
6985: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
6986: my $check_interval;
6987: if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
6988: my @interval;
6989: my $type = 'map';
6990: if ($item eq 'course') {
6991: $type = 'course';
6992: @interval=&EXT("resource.0.interval");
6993: } else {
6994: if ($item =~ /___\d+___/) {
6995: $type = 'resource';
6996: @interval=&EXT("resource.0.interval",$item);
1.1163 raeburn 6997: if (ref($navmap)) {
6998: my $res = $navmap->getBySymb($item);
6999: push(@to_test,$res);
7000: }
1.1162 raeburn 7001: } else {
7002: my $mapsymb = &symbread($item,1);
7003: if ($mapsymb) {
7004: if (ref($navmap)) {
7005: my $mapres = $navmap->getBySymb($mapsymb);
1.1163 raeburn 7006: @to_test = $mapres->retrieveResources($mapres,undef,0,1);
7007: foreach my $res (@to_test) {
1.1162 raeburn 7008: my $symb = $res->symb();
7009: next if ($symb eq $mapsymb);
7010: if ($symb ne '') {
7011: @interval=&EXT("resource.0.interval",$symb);
7012: last;
7013: }
7014: }
7015: }
7016: }
7017: }
7018: }
7019: if ($interval[0] =~ /\d+/) {
7020: my $first_access;
7021: if ($type eq 'resource') {
7022: $first_access=&get_first_access($interval[1],$item);
7023: } elsif ($type eq 'map') {
7024: $first_access=&get_first_access($interval[1],undef,$item);
7025: } else {
7026: $first_access=&get_first_access($interval[1]);
7027: }
7028: if ($first_access) {
7029: my $timesup = $first_access+$interval[0];
7030: if ($timesup > $now) {
1.1163 raeburn 7031: foreach my $res (@to_test) {
7032: if ($res->is_problem()) {
7033: if ($res->completable()) {
7034: unless (grep(/^\Q$block\E$/,@blockers)) {
7035: push(@blockers,$block);
7036: }
7037: last;
7038: }
7039: }
1.1162 raeburn 7040: }
7041: }
7042: }
7043: }
7044: }
7045: }
7046: }
7047: }
7048: }
7049: return @blockers;
7050: }
7051:
7052: sub check_docs_block {
7053: my ($docsblock,$tocheck) =@_;
7054: if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) {
7055: return;
7056: }
7057: if (ref($docsblock->{'maps'}) eq 'HASH') {
7058: if ($tocheck->{'maps'}) {
7059: if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
7060: return 1;
7061: }
7062: }
7063: }
7064: if (ref($docsblock->{'resources'}) eq 'HASH') {
7065: if ($tocheck->{'resources'}) {
7066: if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
7067: return 1;
7068: }
7069: }
7070: }
7071: return;
7072: }
7073:
1.1133 foxr 7074: #
7075: # Removes the versino from a URI and
7076: # splits it in to its filename and path to the filename.
7077: # Seems like File::Basename could have done this more clearly.
7078: # Parameters:
7079: # $uri - input URI
7080: # Returns:
7081: # Two element list consisting of
7082: # $pathname - the URI up to and excluding the trailing /
7083: # $filename - The part of the URI following the last /
7084: # NOTE:
7085: # Another realization of this is simply:
7086: # use File::Basename;
7087: # ...
7088: # $uri = shift;
7089: # $filename = basename($uri);
7090: # $path = dirname($uri);
7091: # return ($filename, $path);
7092: #
7093: # The implementation below is probably faster however.
7094: #
1.710 albertel 7095: sub split_uri_for_cond {
7096: my $uri=&deversion(&declutter(shift));
7097: my @uriparts=split(/\//,$uri);
7098: my $filename=pop(@uriparts);
7099: my $pathname=join('/',@uriparts);
7100: return ($pathname,$filename);
7101: }
1.232 www 7102: # --------------------------------------------------- Is a resource on the map?
7103:
7104: sub is_on_map {
1.710 albertel 7105: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 7106: #Trying to find the conditional for the file
1.620 albertel 7107: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 7108: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 7109: if ($match) {
1.289 bowersj2 7110: return (1,$1);
7111: } else {
1.434 www 7112: return (0,0);
1.289 bowersj2 7113: }
1.12 www 7114: }
7115:
1.427 www 7116: # --------------------------------------------------------- Get symb from alias
7117:
7118: sub get_symb_from_alias {
7119: my $symb=shift;
7120: my ($map,$resid,$url)=&decode_symb($symb);
7121: # Already is a symb
7122: if ($url) { return $symb; }
7123: # Must be an alias
7124: my $aliassymb='';
7125: my %bighash;
1.620 albertel 7126: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 7127: &GDBM_READER(),0640)) {
7128: my $rid=$bighash{'mapalias_'.$symb};
7129: if ($rid) {
7130: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 7131: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
7132: $resid,$bighash{'src_'.$rid});
1.427 www 7133: }
7134: untie %bighash;
7135: }
7136: return $aliassymb;
7137: }
7138:
1.12 www 7139: # ----------------------------------------------------------------- Define Role
7140:
7141: sub definerole {
7142: if (allowed('mcr','/')) {
7143: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 7144: foreach my $role (split(':',$sysrole)) {
7145: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7146: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
7147: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
7148: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7149: return "refused:s:$crole&$cqual";
7150: }
7151: }
1.191 harris41 7152: }
1.800 albertel 7153: foreach my $role (split(':',$domrole)) {
7154: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7155: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
7156: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
7157: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 7158: return "refused:d:$crole&$cqual";
7159: }
7160: }
1.191 harris41 7161: }
1.800 albertel 7162: foreach my $role (split(':',$courole)) {
7163: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 7164: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
7165: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
7166: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 7167: return "refused:c:$crole&$cqual";
7168: }
7169: }
1.191 harris41 7170: }
1.620 albertel 7171: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
7172: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 7173: "rolesdef_$rolename=".
7174: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 7175: return reply($command,$env{'user.home'});
1.12 www 7176: } else {
7177: return 'refused';
7178: }
1.105 harris41 7179: }
7180:
7181: # ---------------- Make a metadata query against the network of library servers
7182:
7183: sub metadata_query {
1.244 matthew 7184: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 7185: my %rhash;
1.845 albertel 7186: my %libserv = &all_library();
1.244 matthew 7187: my @server_list = (defined($server_array) ? @$server_array
7188: : keys(%libserv) );
7189: for my $server (@server_list) {
1.118 harris41 7190: unless ($custom or $customshow) {
7191: my $reply=&reply("querysend:".&escape($query),$server);
7192: $rhash{$server}=$reply;
7193: }
7194: else {
7195: my $reply=&reply("querysend:".&escape($query).':'.
7196: &escape($custom).':'.&escape($customshow),
7197: $server);
7198: $rhash{$server}=$reply;
7199: }
1.112 harris41 7200: }
1.118 harris41 7201: return \%rhash;
1.240 www 7202: }
7203:
7204: # ----------------------------------------- Send log queries and wait for reply
7205:
7206: sub log_query {
7207: my ($uname,$udom,$query,%filters)=@_;
7208: my $uhome=&homeserver($uname,$udom);
7209: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 7210: my $uhost=&hostname($uhome);
1.800 albertel 7211: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 7212: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
7213: $uhome);
1.479 albertel 7214: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 7215: return get_query_reply($queryid);
7216: }
7217:
1.818 raeburn 7218: # -------------------------- Update MySQL table for portfolio file
7219:
7220: sub update_portfolio_table {
1.821 raeburn 7221: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 7222: if ($group ne '') {
7223: $file_name =~s /^\Q$group\E//;
7224: }
1.818 raeburn 7225: my $homeserver = &homeserver($uname,$udom);
7226: my $queryid=
1.821 raeburn 7227: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
7228: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 7229: my $reply = &get_query_reply($queryid);
7230: return $reply;
7231: }
7232:
1.899 raeburn 7233: # -------------------------- Update MySQL allusers table
7234:
7235: sub update_allusers_table {
7236: my ($uname,$udom,$names) = @_;
7237: my $homeserver = &homeserver($uname,$udom);
7238: my $queryid=
7239: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
7240: 'lastname='.&escape($names->{'lastname'}).'%%'.
7241: 'firstname='.&escape($names->{'firstname'}).'%%'.
7242: 'middlename='.&escape($names->{'middlename'}).'%%'.
7243: 'generation='.&escape($names->{'generation'}).'%%'.
7244: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
7245: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 7246: return;
1.899 raeburn 7247: }
7248:
1.508 raeburn 7249: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 7250:
7251: sub fetch_enrollment_query {
1.511 raeburn 7252: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 7253: my $homeserver;
1.547 raeburn 7254: my $maxtries = 1;
1.508 raeburn 7255: if ($context eq 'automated') {
7256: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 7257: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 7258: } else {
7259: $homeserver = &homeserver($cnum,$dom);
7260: }
1.838 albertel 7261: my $host=&hostname($homeserver);
1.506 raeburn 7262: my $cmd = '';
1.1000 raeburn 7263: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 7264: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 7265: }
7266: $cmd =~ s/%%$//;
7267: $cmd = &escape($cmd);
7268: my $query = 'fetchenrollment';
1.620 albertel 7269: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 7270: unless ($queryid=~/^\Q$host\E\_/) {
7271: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
7272: return 'error: '.$queryid;
7273: }
1.506 raeburn 7274: my $reply = &get_query_reply($queryid);
1.547 raeburn 7275: my $tries = 1;
7276: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7277: $reply = &get_query_reply($queryid);
7278: $tries ++;
7279: }
1.526 raeburn 7280: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 7281: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 7282: } else {
1.901 albertel 7283: my @responses = split(/:/,$reply);
1.515 raeburn 7284: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 7285: foreach my $line (@responses) {
7286: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 7287: $$replyref{$key} = $value;
7288: }
7289: } else {
1.1117 foxr 7290: my $pathname = LONCAPA::tempdir();
1.800 albertel 7291: foreach my $line (@responses) {
7292: my ($key,$value) = split(/=/,$line);
1.506 raeburn 7293: $$replyref{$key} = $value;
7294: if ($value > 0) {
1.800 albertel 7295: foreach my $item (@{$$affiliatesref{$key}}) {
7296: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 7297: my $destname = $pathname.'/'.$filename;
7298: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 7299: if ($xml_classlist =~ /^error/) {
7300: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
7301: } else {
1.506 raeburn 7302: if ( open(FILE,">$destname") ) {
7303: print FILE &unescape($xml_classlist);
7304: close(FILE);
1.526 raeburn 7305: } else {
7306: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 7307: }
7308: }
7309: }
7310: }
7311: }
7312: }
7313: return 'ok';
7314: }
7315: return 'error';
7316: }
7317:
1.242 www 7318: sub get_query_reply {
7319: my $queryid=shift;
1.1117 foxr 7320: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 7321: my $reply='';
7322: for (1..100) {
7323: sleep 2;
7324: if (-e $replyfile.'.end') {
1.448 albertel 7325: if (open(my $fh,$replyfile)) {
1.904 albertel 7326: $reply = join('',<$fh>);
7327: close($fh);
1.240 www 7328: } else { return 'error: reply_file_error'; }
1.242 www 7329: return &unescape($reply);
7330: }
1.240 www 7331: }
1.242 www 7332: return 'timeout:'.$queryid;
1.240 www 7333: }
7334:
7335: sub courselog_query {
1.241 www 7336: #
7337: # possible filters:
7338: # url: url or symb
7339: # username
7340: # domain
7341: # action: view, submit, grade
7342: # start: timestamp
7343: # end: timestamp
7344: #
1.240 www 7345: my (%filters)=@_;
1.620 albertel 7346: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 7347: if ($filters{'url'}) {
7348: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
7349: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
7350: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
7351: }
1.620 albertel 7352: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
7353: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 7354: return &log_query($cname,$cdom,'courselog',%filters);
7355: }
7356:
7357: sub userlog_query {
1.858 raeburn 7358: #
7359: # possible filters:
7360: # action: log check role
7361: # start: timestamp
7362: # end: timestamp
7363: #
1.240 www 7364: my ($uname,$udom,%filters)=@_;
7365: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 7366: }
7367:
1.506 raeburn 7368: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
7369:
7370: sub auto_run {
1.508 raeburn 7371: my ($cnum,$cdom) = @_;
1.876 raeburn 7372: my $response = 0;
7373: my $settings;
7374: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
7375: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
7376: $settings = $domconfig{'autoenroll'};
7377: if ($settings->{'run'} eq '1') {
7378: $response = 1;
7379: }
7380: } else {
1.934 raeburn 7381: my $homeserver;
7382: if (&is_course($cdom,$cnum)) {
7383: $homeserver = &homeserver($cnum,$cdom);
7384: } else {
7385: $homeserver = &domain($cdom,'primary');
7386: }
7387: if ($homeserver ne 'no_host') {
7388: $response = &reply('autorun:'.$cdom,$homeserver);
7389: }
1.876 raeburn 7390: }
1.506 raeburn 7391: return $response;
7392: }
1.776 albertel 7393:
1.506 raeburn 7394: sub auto_get_sections {
1.508 raeburn 7395: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 7396: my $homeserver;
7397: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7398: $homeserver = &homeserver($cnum,$cdom);
7399: }
7400: if (!defined($homeserver)) {
7401: if ($cdom =~ /^$match_domain$/) {
7402: $homeserver = &domain($cdom,'primary');
7403: }
7404: }
7405: my @secs;
7406: if (defined($homeserver)) {
7407: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
7408: unless ($response eq 'refused') {
7409: @secs = split(/:/,$response);
7410: }
1.506 raeburn 7411: }
7412: return @secs;
7413: }
1.776 albertel 7414:
1.506 raeburn 7415: sub auto_new_course {
1.1099 raeburn 7416: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 7417: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 7418: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 7419: return $response;
7420: }
1.776 albertel 7421:
1.506 raeburn 7422: sub auto_validate_courseID {
1.508 raeburn 7423: my ($cnum,$cdom,$inst_course_id) = @_;
7424: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 7425: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 7426: return $response;
7427: }
1.776 albertel 7428:
1.1007 raeburn 7429: sub auto_validate_instcode {
1.1020 raeburn 7430: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 7431: my ($homeserver,$response);
7432: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7433: $homeserver = &homeserver($cnum,$cdom);
7434: }
7435: if (!defined($homeserver)) {
7436: if ($cdom =~ /^$match_domain$/) {
7437: $homeserver = &domain($cdom,'primary');
7438: }
7439: }
1.1065 raeburn 7440: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
7441: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 7442: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
7443: return ($outcome,$description);
1.1007 raeburn 7444: }
7445:
1.506 raeburn 7446: sub auto_create_password {
1.873 raeburn 7447: my ($cnum,$cdom,$authparam,$udom) = @_;
7448: my ($homeserver,$response);
1.506 raeburn 7449: my $create_passwd = 0;
7450: my $authchk = '';
1.873 raeburn 7451: if ($udom =~ /^$match_domain$/) {
7452: $homeserver = &domain($udom,'primary');
7453: }
7454: if ($homeserver eq '') {
7455: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
7456: $homeserver = &homeserver($cnum,$cdom);
7457: }
7458: }
7459: if ($homeserver eq '') {
7460: $authchk = 'nodomain';
1.506 raeburn 7461: } else {
1.873 raeburn 7462: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
7463: if ($response eq 'refused') {
7464: $authchk = 'refused';
7465: } else {
1.901 albertel 7466: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 7467: }
1.506 raeburn 7468: }
7469: return ($authparam,$create_passwd,$authchk);
7470: }
7471:
1.706 raeburn 7472: sub auto_photo_permission {
7473: my ($cnum,$cdom,$students) = @_;
7474: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 7475: my ($outcome,$perm_reqd,$conditions) =
7476: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 7477: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7478: return (undef,undef);
7479: }
1.706 raeburn 7480: return ($outcome,$perm_reqd,$conditions);
7481: }
7482:
7483: sub auto_checkphotos {
7484: my ($uname,$udom,$pid) = @_;
7485: my $homeserver = &homeserver($uname,$udom);
7486: my ($result,$resulttype);
7487: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 7488: &escape($uname).':'.&escape($pid),
7489: $homeserver));
1.709 albertel 7490: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7491: return (undef,undef);
7492: }
1.706 raeburn 7493: if ($outcome) {
7494: ($result,$resulttype) = split(/:/,$outcome);
7495: }
7496: return ($result,$resulttype);
7497: }
7498:
7499: sub auto_photochoice {
7500: my ($cnum,$cdom) = @_;
7501: my $homeserver = &homeserver($cnum,$cdom);
7502: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 7503: &escape($cdom),
7504: $homeserver)));
1.709 albertel 7505: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
7506: return (undef,undef);
7507: }
1.706 raeburn 7508: return ($update,$comment);
7509: }
7510:
7511: sub auto_photoupdate {
7512: my ($affiliatesref,$dom,$cnum,$photo) = @_;
7513: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 7514: my $host=&hostname($homeserver);
1.706 raeburn 7515: my $cmd = '';
7516: my $maxtries = 1;
1.800 albertel 7517: foreach my $affiliate (keys(%{$affiliatesref})) {
7518: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 7519: }
7520: $cmd =~ s/%%$//;
7521: $cmd = &escape($cmd);
7522: my $query = 'institutionalphotos';
7523: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
7524: unless ($queryid=~/^\Q$host\E\_/) {
7525: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
7526: return 'error: '.$queryid;
7527: }
7528: my $reply = &get_query_reply($queryid);
7529: my $tries = 1;
7530: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
7531: $reply = &get_query_reply($queryid);
7532: $tries ++;
7533: }
7534: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
7535: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
7536: } else {
7537: my @responses = split(/:/,$reply);
7538: my $outcome = shift(@responses);
7539: foreach my $item (@responses) {
7540: my ($key,$value) = split(/=/,$item);
7541: $$photo{$key} = $value;
7542: }
7543: return $outcome;
7544: }
7545: return 'error';
7546: }
7547:
1.521 raeburn 7548: sub auto_instcode_format {
1.793 albertel 7549: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
7550: $cat_order) = @_;
1.521 raeburn 7551: my $courses = '';
1.772 raeburn 7552: my @homeservers;
1.521 raeburn 7553: if ($caller eq 'global') {
1.841 albertel 7554: my %servers = &get_servers($codedom,'library');
7555: foreach my $tryserver (keys(%servers)) {
7556: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7557: push(@homeservers,$tryserver);
7558: }
1.584 raeburn 7559: }
1.1022 raeburn 7560: } elsif ($caller eq 'requests') {
7561: if ($codedom =~ /^$match_domain$/) {
7562: my $chome = &domain($codedom,'primary');
7563: unless ($chome eq 'no_host') {
7564: push(@homeservers,$chome);
7565: }
7566: }
1.521 raeburn 7567: } else {
1.772 raeburn 7568: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 7569: }
1.793 albertel 7570: foreach my $code (keys(%{$instcodes})) {
7571: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 7572: }
7573: chop($courses);
1.772 raeburn 7574: my $ok_response = 0;
7575: my $response;
7576: while (@homeservers > 0 && $ok_response == 0) {
7577: my $server = shift(@homeservers);
7578: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
7579: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
7580: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 7581: split(/:/,$response);
1.772 raeburn 7582: %{$codes} = (%{$codes},&str2hash($codes_str));
7583: push(@{$codetitles},&str2array($codetitles_str));
7584: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
7585: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
7586: $ok_response = 1;
7587: }
7588: }
7589: if ($ok_response) {
1.521 raeburn 7590: return 'ok';
1.772 raeburn 7591: } else {
7592: return $response;
1.521 raeburn 7593: }
7594: }
7595:
1.792 raeburn 7596: sub auto_instcode_defaults {
7597: my ($domain,$returnhash,$code_order) = @_;
7598: my @homeservers;
1.841 albertel 7599:
7600: my %servers = &get_servers($domain,'library');
7601: foreach my $tryserver (keys(%servers)) {
7602: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7603: push(@homeservers,$tryserver);
7604: }
1.792 raeburn 7605: }
1.841 albertel 7606:
1.792 raeburn 7607: my $response;
1.841 albertel 7608: foreach my $server (@homeservers) {
1.792 raeburn 7609: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 7610: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
7611:
7612: foreach my $pair (split(/\&/,$response)) {
7613: my ($name,$value)=split(/\=/,$pair);
7614: if ($name eq 'code_order') {
7615: @{$code_order} = split(/\&/,&unescape($value));
7616: } else {
7617: $returnhash->{&unescape($name)}=&unescape($value);
7618: }
7619: }
7620: return 'ok';
1.792 raeburn 7621: }
1.841 albertel 7622:
7623: return $response;
1.1003 raeburn 7624: }
7625:
7626: sub auto_possible_instcodes {
1.1007 raeburn 7627: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
7628: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
7629: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
7630: return;
7631: }
1.1003 raeburn 7632: my (@homeservers,$uhome);
7633: if (defined(&domain($domain,'primary'))) {
7634: $uhome=&domain($domain,'primary');
7635: push(@homeservers,&domain($domain,'primary'));
7636: } else {
7637: my %servers = &get_servers($domain,'library');
7638: foreach my $tryserver (keys(%servers)) {
7639: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
7640: push(@homeservers,$tryserver);
7641: }
7642: }
7643: }
7644: my $response;
7645: foreach my $server (@homeservers) {
7646: $response=&reply('autopossibleinstcodes:'.$domain,$server);
7647: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 7648: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
7649: split(':',$response);
7650: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
7651: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 7652: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 7653: my ($name,$value)=split('=',$item);
7654: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7655: }
7656: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 7657: my ($name,$value)=split('=',$item);
7658: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 7659: }
7660: return 'ok';
7661: }
7662: return $response;
7663: }
1.792 raeburn 7664:
1.1010 raeburn 7665: sub auto_courserequest_checks {
7666: my ($dom) = @_;
1.1020 raeburn 7667: my ($homeserver,%validations);
7668: if ($dom =~ /^$match_domain$/) {
7669: $homeserver = &domain($dom,'primary');
7670: }
7671: unless ($homeserver eq 'no_host') {
7672: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
7673: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
7674: my @items = split(/&/,$response);
7675: foreach my $item (@items) {
7676: my ($key,$value) = split('=',$item);
7677: $validations{&unescape($key)} = &thaw_unescape($value);
7678: }
7679: }
7680: }
1.1010 raeburn 7681: return %validations;
7682: }
7683:
1.1020 raeburn 7684: sub auto_courserequest_validation {
7685: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
7686: my ($homeserver,$response);
7687: if ($dom =~ /^$match_domain$/) {
7688: $homeserver = &domain($dom,'primary');
7689: }
7690: unless ($homeserver eq 'no_host') {
1.1021 raeburn 7691:
1.1020 raeburn 7692: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 7693: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 7694: ':'.&escape($instcode).':'.&escape($instseclist),
7695: $homeserver));
7696: }
7697: return $response;
7698: }
7699:
1.777 albertel 7700: sub auto_validate_class_sec {
1.918 raeburn 7701: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 7702: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 7703: my $ownerlist;
7704: if (ref($owners) eq 'ARRAY') {
7705: $ownerlist = join(',',@{$owners});
7706: } else {
7707: $ownerlist = $owners;
7708: }
1.773 raeburn 7709: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 7710: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 7711: return $response;
7712: }
7713:
1.679 raeburn 7714: # ------------------------------------------------------- Course Group routines
7715:
7716: sub get_coursegroups {
1.809 raeburn 7717: my ($cdom,$cnum,$group,$namespace) = @_;
7718: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 7719: }
7720:
1.679 raeburn 7721: sub modify_coursegroup {
7722: my ($cdom,$cnum,$groupsettings) = @_;
7723: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
7724: }
7725:
1.809 raeburn 7726: sub toggle_coursegroup_status {
7727: my ($cdom,$cnum,$group,$action) = @_;
7728: my ($from_namespace,$to_namespace);
7729: if ($action eq 'delete') {
7730: $from_namespace = 'coursegroups';
7731: $to_namespace = 'deleted_groups';
7732: } else {
7733: $from_namespace = 'deleted_groups';
7734: $to_namespace = 'coursegroups';
7735: }
7736: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 7737: if (my $tmp = &error(%curr_group)) {
7738: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
7739: return ('read error',$tmp);
7740: } else {
7741: my %savedsettings = %curr_group;
1.809 raeburn 7742: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 7743: my $deloutcome;
7744: if ($result eq 'ok') {
1.809 raeburn 7745: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 7746: } else {
7747: return ('write error',$result);
7748: }
7749: if ($deloutcome eq 'ok') {
7750: return 'ok';
7751: } else {
7752: return ('delete error',$deloutcome);
7753: }
7754: }
7755: }
7756:
1.679 raeburn 7757: sub modify_group_roles {
1.957 raeburn 7758: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 7759: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
7760: my $role = 'gr/'.&escape($userprivs);
7761: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 7762: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 7763: if ($result eq 'ok') {
7764: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
7765: }
1.679 raeburn 7766: return $result;
7767: }
7768:
7769: sub modify_coursegroup_membership {
7770: my ($cdom,$cnum,$membership) = @_;
7771: my $result = &put('groupmembership',$membership,$cdom,$cnum);
7772: return $result;
7773: }
7774:
1.682 raeburn 7775: sub get_active_groups {
7776: my ($udom,$uname,$cdom,$cnum) = @_;
7777: my $now = time;
7778: my %groups = ();
7779: foreach my $key (keys(%env)) {
1.811 albertel 7780: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 7781: my ($start,$end) = split(/\./,$env{$key});
7782: if (($end!=0) && ($end<$now)) { next; }
7783: if (($start!=0) && ($start>$now)) { next; }
7784: if ($1 eq $cdom && $2 eq $cnum) {
7785: $groups{$3} = $env{$key} ;
7786: }
7787: }
7788: }
7789: return %groups;
7790: }
7791:
1.683 raeburn 7792: sub get_group_membership {
7793: my ($cdom,$cnum,$group) = @_;
7794: return(&dump('groupmembership',$cdom,$cnum,$group));
7795: }
7796:
7797: sub get_users_groups {
7798: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 7799: my @usersgroups;
1.683 raeburn 7800: my $cachetime=1800;
7801:
7802: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 7803: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
7804: if (defined($cached)) {
1.734 albertel 7805: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 7806: } else {
7807: $grouplist = '';
1.816 raeburn 7808: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 7809: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 7810: my $access_end = $env{'course.'.$courseid.
7811: '.default_enrollment_end_date'};
7812: my $now = time;
7813: foreach my $key (keys(%roleshash)) {
7814: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
7815: my $group = $1;
7816: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
7817: my $start = $2;
7818: my $end = $1;
7819: if ($start == -1) { next; } # deleted from group
7820: if (($start!=0) && ($start>$now)) { next; }
7821: if (($end!=0) && ($end<$now)) {
7822: if ($access_end && $access_end < $now) {
7823: if ($access_end - $end < 86400) {
7824: push(@usersgroups,$group);
1.733 raeburn 7825: }
7826: }
1.817 raeburn 7827: next;
1.733 raeburn 7828: }
1.817 raeburn 7829: push(@usersgroups,$group);
1.683 raeburn 7830: }
7831: }
7832: }
1.817 raeburn 7833: @usersgroups = &sort_course_groups($courseid,@usersgroups);
7834: $grouplist = join(':',@usersgroups);
7835: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 7836: }
1.733 raeburn 7837: return @usersgroups;
1.683 raeburn 7838: }
7839:
7840: sub devalidate_getgroups_cache {
7841: my ($udom,$uname,$cdom,$cnum)=@_;
7842: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 7843:
1.683 raeburn 7844: my $hashid="$udom:$uname:$courseid";
7845: &devalidate_cache_new('getgroups',$hashid);
7846: }
7847:
1.12 www 7848: # ------------------------------------------------------------------ Plain Text
7849:
7850: sub plaintext {
1.988 raeburn 7851: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 7852: if ($short =~ m{^cr/}) {
1.758 albertel 7853: return (split('/',$short))[-1];
7854: }
1.742 raeburn 7855: if (!defined($cid)) {
7856: $cid = $env{'request.course.id'};
7857: }
7858: my %rolenames = (
1.1008 raeburn 7859: Course => 'std',
7860: Community => 'alt1',
1.742 raeburn 7861: );
1.1037 raeburn 7862: if ($cid ne '') {
7863: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
7864: unless ($forcedefault) {
7865: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
7866: &Apache::lonlocal::mt_escape(\$roletext);
7867: return &Apache::lonlocal::mt($roletext);
7868: }
7869: }
7870: }
7871: if ((defined($type)) && (defined($rolenames{$type})) &&
7872: (defined($rolenames{$type})) &&
7873: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 7874: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 7875: } elsif ($cid ne '') {
7876: my $crstype = $env{'course.'.$cid.'.type'};
7877: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
7878: (defined($prp{$short}{$rolenames{$crstype}}))) {
7879: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
7880: }
1.742 raeburn 7881: }
1.1037 raeburn 7882: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 7883: }
7884:
7885: # ----------------------------------------------------------------- Assign Role
7886:
7887: sub assignrole {
1.957 raeburn 7888: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
7889: $context)=@_;
1.21 www 7890: my $mrole;
7891: if ($role =~ /^cr\//) {
1.393 www 7892: my $cwosec=$url;
1.811 albertel 7893: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 7894: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 7895: my $refused = 1;
7896: if ($context eq 'requestcourses') {
7897: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
7898: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
7899: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
7900: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7901: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7902: if ($crsenv{'internal.courseowner'} eq
7903: $env{'user.name'}.':'.$env{'user.domain'}) {
7904: $refused = '';
7905: }
7906: }
7907: }
7908: }
7909: }
7910: if ($refused) {
7911: &logthis('Refused custom assignrole: '.
7912: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
7913: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
7914: return 'refused';
7915: }
1.104 www 7916: }
1.21 www 7917: $mrole='cr';
1.678 raeburn 7918: } elsif ($role =~ /^gr\//) {
7919: my $cwogrp=$url;
1.811 albertel 7920: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 7921: unless (&allowed('mdg',$cwogrp)) {
7922: &logthis('Refused group assignrole: '.
7923: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
7924: $env{'user.name'}.' at '.$env{'user.domain'});
7925: return 'refused';
7926: }
7927: $mrole='gr';
1.21 www 7928: } else {
1.82 www 7929: my $cwosec=$url;
1.811 albertel 7930: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 7931: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
7932: my $refused;
7933: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
7934: if (!(&allowed('c'.$role,$url))) {
7935: $refused = 1;
7936: }
7937: } else {
7938: $refused = 1;
7939: }
1.947 raeburn 7940: if ($refused) {
1.1045 raeburn 7941: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
7942: if (!$selfenroll && $context eq 'course') {
7943: my %crsenv;
7944: if ($role eq 'cc' || $role eq 'co') {
7945: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7946: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
7947: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
7948: if ($crsenv{'internal.courseowner'} eq
7949: $env{'user.name'}.':'.$env{'user.domain'}) {
7950: $refused = '';
7951: }
7952: }
7953: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
7954: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
7955: if ($crsenv{'internal.courseowner'} eq
7956: $env{'user.name'}.':'.$env{'user.domain'}) {
7957: $refused = '';
7958: }
7959: }
7960: }
7961: }
7962: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 7963: $refused = '';
1.1017 raeburn 7964: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 7965: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 7966: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 7967: my $wrongcc;
7968: if ($cnum =~ /^$match_community$/) {
7969: $wrongcc = 1 if ($role eq 'cc');
7970: } else {
7971: $wrongcc = 1 if ($role eq 'co');
7972: }
7973: unless ($wrongcc) {
7974: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
7975: if ($crsenv{'internal.courseowner'} eq
7976: $env{'user.name'}.':'.$env{'user.domain'}) {
7977: $refused = '';
7978: }
1.1017 raeburn 7979: }
7980: }
1.1183 raeburn 7981: } elsif ($context eq 'requestauthor') {
7982: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
7983: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
7984: if ($env{'environment.requestauthor'} eq 'automatic') {
7985: $refused = '';
7986: } else {
7987: my %domdefaults = &get_domain_defaults($udom);
7988: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
7989: my $checkbystatus;
7990: if ($env{'user.adv'}) {
7991: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
7992: if ($disposition eq 'automatic') {
7993: $refused = '';
7994: } elsif ($disposition eq '') {
7995: $checkbystatus = 1;
7996: }
7997: } else {
7998: $checkbystatus = 1;
7999: }
8000: if ($checkbystatus) {
8001: if ($env{'environment.inststatus'}) {
8002: my @inststatuses = split(/,/,$env{'environment.inststatus'});
8003: foreach my $type (@inststatuses) {
8004: if (($type ne '') &&
8005: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
8006: $refused = '';
8007: }
8008: }
8009: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
8010: $refused = '';
8011: }
8012: }
8013: }
8014: }
8015: }
1.1017 raeburn 8016: }
8017: if ($refused) {
1.947 raeburn 8018: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
8019: ' '.$role.' '.$end.' '.$start.' by '.
8020: $env{'user.name'}.' at '.$env{'user.domain'});
8021: return 'refused';
8022: }
1.932 raeburn 8023: }
1.1131 raeburn 8024: } elsif ($role eq 'au') {
8025: if ($url ne '/'.$udom.'/') {
8026: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
8027: ' to assign author role for '.$uname.':'.$udom.
8028: ' in domain: '.$url.' refused (wrong domain).');
8029: return 'refused';
8030: }
1.104 www 8031: }
1.21 www 8032: $mrole=$role;
8033: }
1.620 albertel 8034: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 8035: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 8036: if ($end) { $command.='_'.$end; }
1.21 www 8037: if ($start) {
8038: if ($end) {
1.81 www 8039: $command.='_'.$start;
1.21 www 8040: } else {
1.81 www 8041: $command.='_0_'.$start;
1.21 www 8042: }
8043: }
1.739 raeburn 8044: my $origstart = $start;
8045: my $origend = $end;
1.957 raeburn 8046: my $delflag;
1.357 www 8047: # actually delete
8048: if ($deleteflag) {
1.373 www 8049: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 8050: # modify command to delete the role
1.620 albertel 8051: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 8052: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 8053: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 8054: # set start and finish to negative values for userrolelog
8055: $start=-1;
8056: $end=-1;
1.957 raeburn 8057: $delflag = 1;
1.357 www 8058: }
8059: }
8060: # send command
1.349 www 8061: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 8062: # log new user role if status is ok
1.349 www 8063: if ($answer eq 'ok') {
1.663 raeburn 8064: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1184 raeburn 8065: if (($role eq 'cc') || ($role eq 'in') ||
8066: ($role eq 'ep') || ($role eq 'ad') ||
8067: ($role eq 'ta') || ($role eq 'st') ||
8068: ($role=~/^cr/) || ($role eq 'gr') ||
8069: ($role eq 'co')) {
1.1200 raeburn 8070: # for course roles, perform group memberships changes triggered by role change.
8071: unless ($role =~ /^gr/) {
8072: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
8073: $origstart,$selfenroll,$context);
8074: }
1.1184 raeburn 8075: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8076: $selfenroll,$context);
8077: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
8078: ($role eq 'au') || ($role eq 'dc')) {
8079: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8080: $context);
8081: } elsif (($role eq 'ca') || ($role eq 'aa')) {
8082: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
8083: $context);
8084: }
1.1053 raeburn 8085: if ($role eq 'cc') {
8086: &autoupdate_coowners($url,$end,$start,$uname,$udom);
8087: }
1.349 www 8088: }
8089: return $answer;
1.169 harris41 8090: }
8091:
1.1053 raeburn 8092: sub autoupdate_coowners {
8093: my ($url,$end,$start,$uname,$udom) = @_;
8094: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
8095: if (($cdom ne '') && ($cnum ne '')) {
8096: my $now = time;
8097: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
8098: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
8099: my %coursehash = &coursedescription($cdom.'_'.$cnum);
8100: my $instcode = $coursehash{'internal.coursecode'};
8101: if ($instcode ne '') {
1.1056 raeburn 8102: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
8103: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 8104: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 8105: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
8106: if ($result eq 'valid') {
8107: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 8108: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8109: push(@newcoowners,$coowner);
8110: }
8111: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
8112: push(@newcoowners,$uname.':'.$udom);
8113: }
8114: @newcoowners = sort(@newcoowners);
8115: } else {
8116: push(@newcoowners,$uname.':'.$udom);
8117: }
8118: } else {
8119: if ($coursehash{'internal.co-owners'}) {
8120: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
8121: unless ($coowner eq $uname.':'.$udom) {
8122: push(@newcoowners,$coowner);
8123: }
8124: }
8125: unless (@newcoowners > 0) {
8126: $delcoowners = 1;
8127: $coowners = '';
8128: }
8129: }
8130: }
8131: if (@newcoowners || $delcoowners) {
8132: &store_coowners($cdom,$cnum,$coursehash{'home'},
8133: $delcoowners,@newcoowners);
8134: }
8135: }
8136: }
8137: }
8138: }
8139: }
8140: }
8141:
8142: sub store_coowners {
8143: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
8144: my $cid = $cdom.'_'.$cnum;
8145: my ($coowners,$delresult,$putresult);
8146: if (@newcoowners) {
8147: $coowners = join(',',@newcoowners);
8148: my %coownershash = (
8149: 'internal.co-owners' => $coowners,
8150: );
8151: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
8152: if ($putresult eq 'ok') {
8153: if ($env{'course.'.$cid.'.num'} eq $cnum) {
8154: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
8155: }
8156: }
8157: }
8158: if ($delcoowners) {
8159: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
8160: if ($delresult eq 'ok') {
8161: if ($env{'course.'.$cid.'.internal.co-owners'}) {
8162: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
8163: }
8164: }
8165: }
8166: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
8167: my %crsinfo =
8168: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
8169: if (ref($crsinfo{$cid}) eq 'HASH') {
8170: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
8171: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
8172: }
8173: }
8174: }
8175:
1.169 harris41 8176: # -------------------------------------------------- Modify user authentication
1.197 www 8177: # Overrides without validation
8178:
1.169 harris41 8179: sub modifyuserauth {
8180: my ($udom,$uname,$umode,$upass)=@_;
8181: my $uhome=&homeserver($uname,$udom);
1.197 www 8182: unless (&allowed('mau',$udom)) { return 'refused'; }
8183: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 8184: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8185: ' in domain '.$env{'request.role.domain'});
1.169 harris41 8186: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
8187: &escape($upass),$uhome);
1.620 albertel 8188: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 8189: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
8190: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
8191: &log($udom,,$uname,$uhome,
1.620 albertel 8192: 'Authentication changed by '.$env{'user.domain'}.', '.
8193: $env{'user.name'}.', '.$umode.
1.197 www 8194: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 8195: unless ($reply eq 'ok') {
1.197 www 8196: &logthis('Authentication mode error: '.$reply);
1.169 harris41 8197: return 'error: '.$reply;
8198: }
1.170 harris41 8199: return 'ok';
1.80 www 8200: }
8201:
1.81 www 8202: # --------------------------------------------------------------- Modify a user
1.80 www 8203:
1.81 www 8204: sub modifyuser {
1.206 matthew 8205: my ($udom, $uname, $uid,
8206: $umode, $upass, $first,
8207: $middle, $last, $gene,
1.1058 raeburn 8208: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 8209: $udom= &LONCAPA::clean_domain($udom);
8210: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 8211: my $showcandelete = 'none';
8212: if (ref($candelete) eq 'ARRAY') {
8213: if (@{$candelete} > 0) {
8214: $showcandelete = join(', ',@{$candelete});
8215: }
8216: }
1.81 www 8217: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 8218: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 8219: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 8220: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
8221: ' desiredhome not specified').
1.620 albertel 8222: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
8223: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 8224: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 8225: my $newuser;
8226: if ($uhome eq 'no_host') {
8227: $newuser = 1;
8228: }
1.80 www 8229: # ----------------------------------------------------------------- Create User
1.406 albertel 8230: if (($uhome eq 'no_host') &&
8231: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 8232: my $unhome='';
1.844 albertel 8233: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 8234: $unhome = $desiredhome;
1.620 albertel 8235: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
8236: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 8237: } else { # load balancing routine for determining $unhome
1.81 www 8238: my $loadm=10000000;
1.841 albertel 8239: my %servers = &get_servers($udom,'library');
8240: foreach my $tryserver (keys(%servers)) {
8241: my $answer=reply('load',$tryserver);
8242: if (($answer=~/\d+/) && ($answer<$loadm)) {
8243: $loadm=$answer;
8244: $unhome=$tryserver;
8245: }
1.80 www 8246: }
8247: }
8248: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 8249: return 'error: unable to find a home server for '.$uname.
8250: ' in domain '.$udom;
1.80 www 8251: }
8252: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
8253: &escape($upass),$unhome);
8254: unless ($reply eq 'ok') {
8255: return 'error: '.$reply;
8256: }
1.230 stredwic 8257: $uhome=&homeserver($uname,$udom,'true');
1.80 www 8258: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 8259: return 'error: unable verify users home machine.';
1.80 www 8260: }
1.209 matthew 8261: } # End of creation of new user
1.80 www 8262: # ---------------------------------------------------------------------- Add ID
8263: if ($uid) {
8264: $uid=~tr/A-Z/a-z/;
8265: my %uidhash=&idrget($udom,$uname);
1.196 www 8266: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
8267: && (!$forceid)) {
1.80 www 8268: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 8269: return 'error: user id "'.$uid.'" does not match '.
8270: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 8271: }
8272: } else {
8273: &idput($udom,($uname => $uid));
8274: }
8275: }
8276: # -------------------------------------------------------------- Add names, etc
1.313 matthew 8277: my @tmp=&get('environment',
1.899 raeburn 8278: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 8279: 'permanentemail','inststatus'],
1.134 albertel 8280: $udom,$uname);
1.1075 raeburn 8281: my (%names,%oldnames);
1.313 matthew 8282: if ($tmp[0] =~ m/^error:.*/) {
8283: %names=();
8284: } else {
8285: %names = @tmp;
1.1075 raeburn 8286: %oldnames = %names;
1.313 matthew 8287: }
1.388 www 8288: #
1.1058 raeburn 8289: # If name, email and/or uid are blank (e.g., because an uploaded file
8290: # of users did not contain them), do not overwrite existing values
8291: # unless field is in $candelete array ref.
8292: #
8293:
8294: my @fields = ('firstname','middlename','lastname','generation',
8295: 'permanentemail','id');
8296: my %newvalues;
8297: if (ref($candelete) eq 'ARRAY') {
8298: foreach my $field (@fields) {
8299: if (grep(/^\Q$field\E$/,@{$candelete})) {
8300: if ($field eq 'firstname') {
8301: $names{$field} = $first;
8302: } elsif ($field eq 'middlename') {
8303: $names{$field} = $middle;
8304: } elsif ($field eq 'lastname') {
8305: $names{$field} = $last;
8306: } elsif ($field eq 'generation') {
8307: $names{$field} = $gene;
8308: } elsif ($field eq 'permanentemail') {
8309: $names{$field} = $email;
8310: } elsif ($field eq 'id') {
8311: $names{$field} = $uid;
8312: }
8313: }
8314: }
8315: }
1.388 www 8316: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 8317: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 8318: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 8319: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 8320: if ($email) {
8321: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 8322: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 8323: }
1.899 raeburn 8324: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 8325: if (defined($inststatus)) {
8326: $names{'inststatus'} = '';
8327: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
8328: if (ref($usertypes) eq 'HASH') {
8329: my @okstatuses;
8330: foreach my $item (split(/:/,$inststatus)) {
8331: if (defined($usertypes->{$item})) {
8332: push(@okstatuses,$item);
8333: }
8334: }
8335: if (@okstatuses) {
8336: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
8337: }
8338: }
8339: }
1.1075 raeburn 8340: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 8341: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 8342: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 8343: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
8344: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
8345: } else {
8346: $logmsg .= ' during self creation';
8347: }
1.1075 raeburn 8348: my $changed;
8349: if ($newuser) {
8350: $changed = 1;
8351: } else {
8352: foreach my $field (@fields) {
8353: if ($names{$field} ne $oldnames{$field}) {
8354: $changed = 1;
8355: last;
8356: }
8357: }
8358: }
8359: unless ($changed) {
8360: $logmsg = 'No changes in user information needed for: '.$logmsg;
8361: &logthis($logmsg);
8362: return 'ok';
8363: }
8364: my $reply = &put('environment', \%names, $udom,$uname);
8365: if ($reply ne 'ok') {
8366: return 'error: '.$reply;
8367: }
1.1087 raeburn 8368: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
8369: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
8370: }
1.1075 raeburn 8371: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
8372: &devalidate_cache_new('namescache',$uname.':'.$udom);
8373: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 8374: &logthis($logmsg);
1.134 albertel 8375: return 'ok';
1.80 www 8376: }
8377:
1.81 www 8378: # -------------------------------------------------------------- Modify student
1.80 www 8379:
1.81 www 8380: sub modifystudent {
8381: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 8382: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 8383: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 8384: if (!$cid) {
1.620 albertel 8385: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8386: return 'not_in_class';
8387: }
1.80 www 8388: }
8389: # --------------------------------------------------------------- Make the user
1.81 www 8390: my $reply=&modifyuser
1.209 matthew 8391: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 8392: $desiredhome,$email,$inststatus);
1.80 www 8393: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 8394: # This will cause &modify_student_enrollment to get the uid from the
8395: # students environment
8396: $uid = undef if (!$forceid);
1.455 albertel 8397: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 8398: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 8399: return $reply;
8400: }
8401:
8402: sub modify_student_enrollment {
1.957 raeburn 8403: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 8404: my ($cdom,$cnum,$chome);
8405: if (!$cid) {
1.620 albertel 8406: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 8407: return 'not_in_class';
8408: }
1.620 albertel 8409: $cdom=$env{'course.'.$cid.'.domain'};
8410: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 8411: } else {
8412: ($cdom,$cnum)=split(/_/,$cid);
8413: }
1.620 albertel 8414: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 8415: if (!$chome) {
1.457 raeburn 8416: $chome=&homeserver($cnum,$cdom);
1.297 matthew 8417: }
1.455 albertel 8418: if (!$chome) { return 'unknown_course'; }
1.297 matthew 8419: # Make sure the user exists
1.81 www 8420: my $uhome=&homeserver($uname,$udom);
8421: if (($uhome eq '') || ($uhome eq 'no_host')) {
8422: return 'error: no such user';
8423: }
1.297 matthew 8424: # Get student data if we were not given enough information
8425: if (!defined($first) || $first eq '' ||
8426: !defined($last) || $last eq '' ||
8427: !defined($uid) || $uid eq '' ||
8428: !defined($middle) || $middle eq '' ||
8429: !defined($gene) || $gene eq '') {
1.294 matthew 8430: # They did not supply us with enough data to enroll the student, so
8431: # we need to pick up more information.
1.297 matthew 8432: my %tmp = &get('environment',
1.294 matthew 8433: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 8434: ,$udom,$uname);
8435:
1.800 albertel 8436: #foreach my $key (keys(%tmp)) {
8437: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 8438: #}
1.294 matthew 8439: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
8440: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
8441: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 8442: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 8443: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
8444: }
1.556 albertel 8445: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 8446: my $user = "$uname:$udom";
8447: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 8448: my $reply=cput('classlist',
1.1148 raeburn 8449: {$user =>
1.515 raeburn 8450: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 8451: $cdom,$cnum);
1.1148 raeburn 8452: if (($reply eq 'ok') || ($reply eq 'delayed')) {
8453: &devalidate_getsection_cache($udom,$uname,$cid);
8454: } else {
1.81 www 8455: return 'error: '.$reply;
8456: }
1.297 matthew 8457: # Add student role to user
1.83 www 8458: my $uurl='/'.$cid;
1.81 www 8459: $uurl=~s/\_/\//g;
8460: if ($usec) {
8461: $uurl.='/'.$usec;
8462: }
1.1148 raeburn 8463: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
8464: $selfenroll,$context);
8465: if ($result ne 'ok') {
8466: if ($old_entry{$user} ne '') {
8467: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
8468: } else {
8469: $reply = &del('classlist',[$user],$cdom,$cnum);
8470: }
8471: }
8472: return $result;
1.21 www 8473: }
8474:
1.556 albertel 8475: sub format_name {
8476: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
8477: my $name;
8478: if ($first ne 'lastname') {
8479: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
8480: } else {
8481: if ($lastname=~/\S/) {
8482: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
8483: $name=~s/\s+,/,/;
8484: } else {
8485: $name.= $firstname.' '.$middlename.' '.$generation;
8486: }
8487: }
8488: $name=~s/^\s+//;
8489: $name=~s/\s+$//;
8490: $name=~s/\s+/ /g;
8491: return $name;
8492: }
8493:
1.84 www 8494: # ------------------------------------------------- Write to course preferences
8495:
8496: sub writecoursepref {
8497: my ($courseid,%prefs)=@_;
8498: $courseid=~s/^\///;
8499: $courseid=~s/\_/\//g;
8500: my ($cdomain,$cnum)=split(/\//,$courseid);
8501: my $chome=homeserver($cnum,$cdomain);
8502: if (($chome eq '') || ($chome eq 'no_host')) {
8503: return 'error: no such course';
8504: }
8505: my $cstring='';
1.800 albertel 8506: foreach my $pref (keys(%prefs)) {
8507: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 8508: }
1.84 www 8509: $cstring=~s/\&$//;
8510: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
8511: }
8512:
8513: # ---------------------------------------------------------- Make/modify course
8514:
8515: sub createcourse {
1.741 raeburn 8516: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 8517: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 8518: $url=&declutter($url);
8519: my $cid='';
1.1028 raeburn 8520: if ($context eq 'requestcourses') {
8521: my $can_create = 0;
8522: my ($ownername,$ownerdom) = split(':',$course_owner);
8523: if ($udom eq $ownerdom) {
8524: if (&usertools_access($ownername,$ownerdom,$category,undef,
8525: $context)) {
8526: $can_create = 1;
8527: }
8528: } else {
8529: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
8530: $category);
8531: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
8532: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
8533: if (@curr > 0) {
8534: my @options = qw(approval validate autolimit);
8535: my $optregex = join('|',@options);
8536: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
8537: $can_create = 1;
8538: }
8539: }
8540: }
8541: }
8542: if ($can_create) {
8543: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
8544: unless (&allowed('ccc',$udom)) {
8545: return 'refused';
8546: }
1.1017 raeburn 8547: }
8548: } else {
8549: return 'refused';
8550: }
1.1028 raeburn 8551: } elsif (!&allowed('ccc',$udom)) {
8552: return 'refused';
1.84 www 8553: }
1.1011 raeburn 8554: # --------------------------------------------------------------- Get Unique ID
8555: my $uname;
8556: if ($cnum =~ /^$match_courseid$/) {
8557: my $chome=&homeserver($cnum,$udom,'true');
8558: if (($chome eq '') || ($chome eq 'no_host')) {
8559: $uname = $cnum;
8560: } else {
1.1038 raeburn 8561: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8562: }
8563: } else {
1.1038 raeburn 8564: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 8565: }
8566: return $uname if ($uname =~ /^error/);
8567: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 8568: if (!defined($course_server)) {
8569: if (defined(&domain($udom,'primary'))) {
8570: $course_server = &domain($udom,'primary');
8571: } else {
8572: $course_server = $env{'user.home'};
8573: }
8574: }
8575: my %host_servers =
8576: &Apache::lonnet::get_servers($udom,'library');
8577: unless ($host_servers{$course_server}) {
8578: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 8579: }
1.84 www 8580: # ------------------------------------------------------------- Make the course
8581: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 8582: $course_server);
1.84 www 8583: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 8584: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 8585: if (($uhome eq '') || ($uhome eq 'no_host')) {
8586: return 'error: no such course';
8587: }
1.271 www 8588: # ----------------------------------------------------------------- Course made
1.516 raeburn 8589: # log existence
1.1029 raeburn 8590: my $now = time;
1.918 raeburn 8591: my $newcourse = {
8592: $udom.'_'.$uname => {
1.921 raeburn 8593: description => $description,
8594: inst_code => $inst_code,
8595: owner => $course_owner,
8596: type => $crstype,
1.1029 raeburn 8597: creator => $env{'user.name'}.':'.
8598: $env{'user.domain'},
8599: created => $now,
8600: context => $context,
1.918 raeburn 8601: },
8602: };
1.921 raeburn 8603: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 8604: # set toplevel url
1.271 www 8605: my $topurl=$url;
8606: unless ($nonstandard) {
8607: # ------------------------------------------ For standard courses, make top url
8608: my $mapurl=&clutter($url);
1.278 www 8609: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 8610: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 8611: <map>
8612: <resource id="1" type="start"></resource>
8613: <resource id="2" src="$mapurl"></resource>
8614: <resource id="3" type="finish"></resource>
8615: <link index="1" from="1" to="2"></link>
8616: <link index="2" from="2" to="3"></link>
8617: </map>
8618: ENDINITMAP
8619: $topurl=&declutter(
1.638 albertel 8620: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 8621: );
8622: }
8623: # ----------------------------------------------------------- Write preferences
1.84 www 8624: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 8625: ('description' => $description,
8626: 'url' => $topurl,
8627: 'internal.creator' => $env{'user.name'}.':'.
8628: $env{'user.domain'},
8629: 'internal.created' => $now,
8630: 'internal.creationcontext' => $context)
8631: );
1.84 www 8632: return '/'.$udom.'/'.$uname;
8633: }
8634:
1.1011 raeburn 8635: # ------------------------------------------------------------------- Create ID
8636: sub generate_coursenum {
1.1038 raeburn 8637: my ($udom,$crstype) = @_;
1.1011 raeburn 8638: my $domdesc = &domain($udom);
8639: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 8640: my $first;
8641: if ($crstype eq 'Community') {
8642: $first = '0';
8643: } else {
8644: $first = int(1+rand(9));
8645: }
8646: my $uname=$first.
1.1011 raeburn 8647: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8648: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8649: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8650: # ----------------------------------------------- Make sure that does not exist
8651: my $uhome=&homeserver($uname,$udom,'true');
8652: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 8653: if ($crstype eq 'Community') {
8654: $first = '0';
8655: } else {
8656: $first = int(1+rand(9));
8657: }
8658: $uname=$first.
1.1011 raeburn 8659: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
8660: substr($$.time,0,5).unpack("H8",pack("I32",time)).
8661: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
8662: $uhome=&homeserver($uname,$udom,'true');
8663: unless (($uhome eq '') || ($uhome eq 'no_host')) {
8664: return 'error: unable to generate unique course-ID';
8665: }
8666: }
8667: return $uname;
8668: }
8669:
1.813 albertel 8670: sub is_course {
1.1167 droeschl 8671: my ($cdom, $cnum) = scalar(@_) == 1 ?
8672: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
8673:
8674: return unless $cdom and $cnum;
8675:
8676: my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
8677: '.');
8678:
8679: return unless exists($courses{$cdom.'_'.$cnum});
8680: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 8681: }
8682:
1.1015 raeburn 8683: sub store_userdata {
8684: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 8685: my $result;
1.1016 raeburn 8686: if ($datakey ne '') {
1.1013 raeburn 8687: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 8688: if ($udom eq '' || $uname eq '') {
8689: $udom = $env{'user.domain'};
8690: $uname = $env{'user.name'};
8691: }
8692: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 8693: if (($uhome eq '') || ($uhome eq 'no_host')) {
8694: $result = 'error: no_host';
8695: } else {
8696: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
8697: $storehash->{'host'} = $perlvar{'lonHostID'};
8698:
8699: my $namevalue='';
8700: foreach my $key (keys(%{$storehash})) {
8701: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
8702: }
8703: $namevalue=~s/\&$//;
1.1105 raeburn 8704: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
8705: $namevalue,$uhome);
1.1013 raeburn 8706: }
8707: } else {
8708: $result = 'error: data to store was not a hash reference';
8709: }
8710: } else {
8711: $result= 'error: invalid requestkey';
8712: }
8713: return $result;
8714: }
8715:
1.21 www 8716: # ---------------------------------------------------------- Assign Custom Role
8717:
8718: sub assigncustomrole {
1.957 raeburn 8719: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8720: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 8721: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 8722: }
8723:
8724: # ----------------------------------------------------------------- Revoke Role
8725:
8726: sub revokerole {
1.957 raeburn 8727: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8728: my $now=time;
1.965 raeburn 8729: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 8730: }
8731:
8732: # ---------------------------------------------------------- Revoke Custom Role
8733:
8734: sub revokecustomrole {
1.957 raeburn 8735: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 8736: my $now=time;
1.357 www 8737: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 8738: $deleteflag,$selfenroll,$context);
1.17 www 8739: }
8740:
1.533 banghart 8741: # ------------------------------------------------------------ Disk usage
1.535 albertel 8742: sub diskusage {
1.955 raeburn 8743: my ($udom,$uname,$directorypath,$getpropath)=@_;
8744: $directorypath =~ s/\/$//;
8745: my $listing=&reply('du2:'.&escape($directorypath).':'
8746: .&escape($getpropath).':'.&escape($uname).':'
8747: .&escape($udom),homeserver($uname,$udom));
8748: if ($listing eq 'unknown_cmd') {
8749: if ($getpropath) {
8750: $directorypath = &propath($udom,$uname).'/'.$directorypath;
8751: }
8752: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
8753: }
1.514 albertel 8754: return $listing;
1.512 banghart 8755: }
8756:
1.566 banghart 8757: sub is_locked {
1.1096 raeburn 8758: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 8759: my @check;
8760: my $is_locked;
1.1093 raeburn 8761: push (@check,$file_name);
1.613 albertel 8762: my %locked = &get('file_permissions',\@check,
1.620 albertel 8763: $env{'user.domain'},$env{'user.name'});
1.615 albertel 8764: my ($tmp)=keys(%locked);
8765: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 8766:
1.566 banghart 8767: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 8768: $is_locked = 'false';
8769: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 8770: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 8771: $is_locked = 'true';
1.1096 raeburn 8772: if (ref($which) eq 'ARRAY') {
8773: push(@{$which},$entry);
8774: } else {
8775: last;
8776: }
1.745 raeburn 8777: }
8778: }
1.566 banghart 8779: } else {
8780: $is_locked = 'false';
8781: }
1.1093 raeburn 8782: return $is_locked;
1.566 banghart 8783: }
8784:
1.759 albertel 8785: sub declutter_portfile {
8786: my ($file) = @_;
1.833 albertel 8787: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 8788: return $file;
8789: }
8790:
1.559 banghart 8791: # ------------------------------------------------------------- Mark as Read Only
8792:
8793: sub mark_as_readonly {
8794: my ($domain,$user,$files,$what) = @_;
1.613 albertel 8795: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8796: my ($tmp)=keys(%current_permissions);
8797: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 8798: foreach my $file (@{$files}) {
1.759 albertel 8799: $file = &declutter_portfile($file);
1.561 banghart 8800: push(@{$current_permissions{$file}},$what);
1.559 banghart 8801: }
1.613 albertel 8802: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 8803: return;
8804: }
8805:
1.572 banghart 8806: # ------------------------------------------------------------Save Selected Files
8807:
8808: sub save_selected_files {
8809: my ($user, $path, @files) = @_;
8810: my $filename = $user."savedfiles";
1.573 banghart 8811: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 8812: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 8813: foreach my $file (@files) {
1.620 albertel 8814: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 8815: }
8816: foreach my $file (@other_files) {
1.574 banghart 8817: print (OUT $file."\n");
1.572 banghart 8818: }
1.574 banghart 8819: close (OUT);
1.572 banghart 8820: return 'ok';
8821: }
8822:
1.574 banghart 8823: sub clear_selected_files {
8824: my ($user) = @_;
8825: my $filename = $user."savedfiles";
1.1117 foxr 8826: open (OUT, '>'.LONCAPA::tempdir().$filename);
1.574 banghart 8827: print (OUT undef);
8828: close (OUT);
8829: return ("ok");
8830: }
8831:
1.572 banghart 8832: sub files_in_path {
8833: my ($user, $path) = @_;
8834: my $filename = $user."savedfiles";
8835: my %return_files;
1.1117 foxr 8836: open (IN, '<'.LONCAPA::tempdir().$filename);
1.573 banghart 8837: while (my $line_in = <IN>) {
1.574 banghart 8838: chomp ($line_in);
8839: my @paths_and_file = split (m!/!, $line_in);
8840: my $file_part = pop (@paths_and_file);
8841: my $path_part = join ('/', @paths_and_file);
1.573 banghart 8842: $path_part.='/';
8843: my $path_and_file = $path_part.$file_part;
8844: if ($path_part eq $path) {
8845: $return_files{$file_part}= 'selected';
8846: }
8847: }
1.574 banghart 8848: close (IN);
8849: return (\%return_files);
1.572 banghart 8850: }
8851:
8852: # called in portfolio select mode, to show files selected NOT in current directory
8853: sub files_not_in_path {
8854: my ($user, $path) = @_;
8855: my $filename = $user."savedfiles";
8856: my @return_files;
8857: my $path_part;
1.1117 foxr 8858: open(IN, '<'.LONCAPA::.$filename);
1.800 albertel 8859: while (my $line = <IN>) {
1.572 banghart 8860: #ok, I know it's clunky, but I want it to work
1.800 albertel 8861: my @paths_and_file = split(m|/|, $line);
8862: my $file_part = pop(@paths_and_file);
8863: chomp($file_part);
8864: my $path_part = join('/', @paths_and_file);
1.572 banghart 8865: $path_part .= '/';
8866: my $path_and_file = $path_part.$file_part;
8867: if ($path_part ne $path) {
1.800 albertel 8868: push(@return_files, ($path_and_file));
1.572 banghart 8869: }
8870: }
1.800 albertel 8871: close(OUT);
1.574 banghart 8872: return (@return_files);
1.572 banghart 8873: }
8874:
1.745 raeburn 8875: #----------------------------------------------Get portfolio file permissions
1.629 banghart 8876:
1.745 raeburn 8877: sub get_portfile_permissions {
8878: my ($domain,$user) = @_;
1.613 albertel 8879: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 8880: my ($tmp)=keys(%current_permissions);
8881: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 8882: return \%current_permissions;
8883: }
8884:
8885: #---------------------------------------------Get portfolio file access controls
8886:
1.749 raeburn 8887: sub get_access_controls {
1.745 raeburn 8888: my ($current_permissions,$group,$file) = @_;
1.769 albertel 8889: my %access;
8890: my $real_file = $file;
8891: $file =~ s/\.meta$//;
1.745 raeburn 8892: if (defined($file)) {
1.749 raeburn 8893: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
8894: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 8895: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 8896: }
8897: }
1.745 raeburn 8898: } else {
1.749 raeburn 8899: foreach my $key (keys(%{$current_permissions})) {
8900: if ($key =~ /\0accesscontrol$/) {
8901: if (defined($group)) {
8902: if ($key !~ m-^\Q$group\E/-) {
8903: next;
8904: }
8905: }
8906: my ($fullpath) = split(/\0/,$key);
8907: if (ref($$current_permissions{$key}) eq 'HASH') {
8908: foreach my $control (keys(%{$$current_permissions{$key}})) {
8909: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
8910: }
8911: }
8912: }
8913: }
8914: }
8915: return %access;
8916: }
8917:
8918: sub modify_access_controls {
8919: my ($file_name,$changes,$domain,$user)=@_;
8920: my ($outcome,$deloutcome);
8921: my %store_permissions;
8922: my %new_values;
8923: my %new_control;
8924: my %translation;
8925: my @deletions = ();
8926: my $now = time;
8927: if (exists($$changes{'activate'})) {
8928: if (ref($$changes{'activate'}) eq 'HASH') {
8929: my @newitems = sort(keys(%{$$changes{'activate'}}));
8930: my $numnew = scalar(@newitems);
8931: for (my $i=0; $i<$numnew; $i++) {
8932: my $newkey = $newitems[$i];
8933: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 8934: if ($newkey =~ /^\d+:/) {
8935: $newkey =~ s/^(\d+)/$newid/;
8936: $translation{$1} = $newid;
8937: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
8938: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
8939: $translation{$1} = $newid;
8940: }
1.749 raeburn 8941: $new_values{$file_name."\0".$newkey} =
8942: $$changes{'activate'}{$newitems[$i]};
8943: $new_control{$newkey} = $now;
8944: }
8945: }
8946: }
8947: my %todelete;
8948: my %changed_items;
8949: foreach my $action ('delete','update') {
8950: if (exists($$changes{$action})) {
8951: if (ref($$changes{$action}) eq 'HASH') {
8952: foreach my $key (keys(%{$$changes{$action}})) {
8953: my ($itemnum) = ($key =~ /^([^:]+):/);
8954: if ($action eq 'delete') {
8955: $todelete{$itemnum} = 1;
8956: } else {
8957: $changed_items{$itemnum} = $key;
8958: }
8959: }
1.745 raeburn 8960: }
8961: }
1.749 raeburn 8962: }
8963: # get lock on access controls for file.
8964: my $lockhash = {
8965: $file_name."\0".'locked_access_records' => $env{'user.name'}.
8966: ':'.$env{'user.domain'},
8967: };
8968: my $tries = 0;
8969: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8970:
8971: while (($gotlock ne 'ok') && $tries <3) {
8972: $tries ++;
8973: sleep 1;
8974: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
8975: }
8976: if ($gotlock eq 'ok') {
8977: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
8978: my ($tmp)=keys(%curr_permissions);
8979: if ($tmp=~/^error:/) { undef(%curr_permissions); }
8980: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
8981: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
8982: if (ref($curr_controls) eq 'HASH') {
8983: foreach my $control_item (keys(%{$curr_controls})) {
8984: my ($itemnum) = ($control_item =~ /^([^:]+):/);
8985: if (defined($todelete{$itemnum})) {
8986: push(@deletions,$file_name."\0".$control_item);
8987: } else {
8988: if (defined($changed_items{$itemnum})) {
8989: $new_control{$changed_items{$itemnum}} = $now;
8990: push(@deletions,$file_name."\0".$control_item);
8991: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
8992: } else {
8993: $new_control{$control_item} = $$curr_controls{$control_item};
8994: }
8995: }
1.745 raeburn 8996: }
8997: }
8998: }
1.970 raeburn 8999: my ($group);
9000: if (&is_course($domain,$user)) {
9001: ($group,my $file) = split(/\//,$file_name,2);
9002: }
1.749 raeburn 9003: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
9004: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
9005: $outcome = &put('file_permissions',\%new_values,$domain,$user);
9006: # remove lock
9007: my @del_lock = ($file_name."\0".'locked_access_records');
9008: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 9009: my $sqlresult =
1.970 raeburn 9010: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 9011: $group);
1.749 raeburn 9012: } else {
9013: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 9014: }
1.749 raeburn 9015: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 9016: }
9017:
1.827 raeburn 9018: sub make_public_indefinitely {
9019: my ($requrl) = @_;
9020: my $now = time;
9021: my $action = 'activate';
9022: my $aclnum = 0;
9023: if (&is_portfolio_url($requrl)) {
9024: my (undef,$udom,$unum,$file_name,$group) =
9025: &parse_portfolio_url($requrl);
9026: my $current_perms = &get_portfile_permissions($udom,$unum);
9027: my %access_controls = &get_access_controls($current_perms,
9028: $group,$file_name);
9029: foreach my $key (keys(%{$access_controls{$file_name}})) {
9030: my ($num,$scope,$end,$start) =
9031: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
9032: if ($scope eq 'public') {
9033: if ($start <= $now && $end == 0) {
9034: $action = 'none';
9035: } else {
9036: $action = 'update';
9037: $aclnum = $num;
9038: }
9039: last;
9040: }
9041: }
9042: if ($action eq 'none') {
9043: return 'ok';
9044: } else {
9045: my %changes;
9046: my $newend = 0;
9047: my $newstart = $now;
9048: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
9049: $changes{$action}{$newkey} = {
9050: type => 'public',
9051: time => {
9052: start => $newstart,
9053: end => $newend,
9054: },
9055: };
9056: my ($outcome,$deloutcome,$new_values,$translation) =
9057: &modify_access_controls($file_name,\%changes,$udom,$unum);
9058: return $outcome;
9059: }
9060: } else {
9061: return 'invalid';
9062: }
9063: }
9064:
1.745 raeburn 9065: #------------------------------------------------------Get Marked as Read Only
9066:
9067: sub get_marked_as_readonly {
9068: my ($domain,$user,$what,$group) = @_;
9069: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 9070: my @readonly_files;
1.629 banghart 9071: my $cmp1=$what;
9072: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 9073: while (my ($file_name,$value) = each(%{$current_permissions})) {
9074: if (defined($group)) {
9075: if ($file_name !~ m-^\Q$group\E/-) {
9076: next;
9077: }
9078: }
1.561 banghart 9079: if (ref($value) eq "ARRAY"){
9080: foreach my $stored_what (@{$value}) {
1.629 banghart 9081: my $cmp2=$stored_what;
1.759 albertel 9082: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 9083: $cmp2=join('',@{$stored_what});
1.745 raeburn 9084: }
1.629 banghart 9085: if ($cmp1 eq $cmp2) {
1.561 banghart 9086: push(@readonly_files, $file_name);
1.745 raeburn 9087: last;
1.563 banghart 9088: } elsif (!defined($what)) {
9089: push(@readonly_files, $file_name);
1.745 raeburn 9090: last;
1.561 banghart 9091: }
9092: }
1.745 raeburn 9093: }
1.561 banghart 9094: }
9095: return @readonly_files;
9096: }
1.577 banghart 9097: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 9098:
1.577 banghart 9099: sub get_marked_as_readonly_hash {
1.745 raeburn 9100: my ($current_permissions,$group,$what) = @_;
1.577 banghart 9101: my %readonly_files;
1.745 raeburn 9102: while (my ($file_name,$value) = each(%{$current_permissions})) {
9103: if (defined($group)) {
9104: if ($file_name !~ m-^\Q$group\E/-) {
9105: next;
9106: }
9107: }
1.577 banghart 9108: if (ref($value) eq "ARRAY"){
9109: foreach my $stored_what (@{$value}) {
1.745 raeburn 9110: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 9111: foreach my $lock_descriptor(@{$stored_what}) {
9112: if ($lock_descriptor eq 'graded') {
9113: $readonly_files{$file_name} = 'graded';
9114: } elsif ($lock_descriptor eq 'handback') {
9115: $readonly_files{$file_name} = 'handback';
9116: } else {
9117: if (!exists($readonly_files{$file_name})) {
9118: $readonly_files{$file_name} = 'locked';
9119: }
9120: }
1.745 raeburn 9121: }
1.750 banghart 9122: }
1.577 banghart 9123: }
9124: }
9125: }
9126: return %readonly_files;
9127: }
1.559 banghart 9128: # ------------------------------------------------------------ Unmark as Read Only
9129:
9130: sub unmark_as_readonly {
1.629 banghart 9131: # unmarks $file_name (if $file_name is defined), or all files locked by $what
9132: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 9133: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 9134: $file_name = &declutter_portfile($file_name);
1.634 albertel 9135: my $symb_crs = $what;
9136: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 9137: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 9138: my ($tmp)=keys(%current_permissions);
9139: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9140: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 9141: foreach my $file (@readonly_files) {
1.759 albertel 9142: my $clean_file = &declutter_portfile($file);
9143: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 9144: my $current_locks = $current_permissions{$file};
1.563 banghart 9145: my @new_locks;
9146: my @del_keys;
9147: if (ref($current_locks) eq "ARRAY"){
9148: foreach my $locker (@{$current_locks}) {
1.632 albertel 9149: my $compare=$locker;
1.749 raeburn 9150: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 9151: $compare=join('',@{$locker});
1.746 raeburn 9152: if ($compare ne $symb_crs) {
9153: push(@new_locks, $locker);
9154: }
1.563 banghart 9155: }
9156: }
1.650 albertel 9157: if (scalar(@new_locks) > 0) {
1.563 banghart 9158: $current_permissions{$file} = \@new_locks;
9159: } else {
9160: push(@del_keys, $file);
1.613 albertel 9161: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 9162: delete($current_permissions{$file});
1.563 banghart 9163: }
9164: }
1.561 banghart 9165: }
1.613 albertel 9166: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9167: return;
9168: }
1.512 banghart 9169:
1.17 www 9170: # ------------------------------------------------------------ Directory lister
9171:
9172: sub dirlist {
1.955 raeburn 9173: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 9174: $uri=~s/^\///;
9175: $uri=~s/\/$//;
1.253 stredwic 9176: my ($udom, $uname);
1.955 raeburn 9177: if ($getuserdir) {
1.253 stredwic 9178: $udom = $userdomain;
9179: $uname = $username;
1.955 raeburn 9180: } else {
9181: (undef,$udom,$uname)=split(/\//,$uri);
9182: if(defined($userdomain)) {
9183: $udom = $userdomain;
9184: }
9185: if(defined($username)) {
9186: $uname = $username;
9187: }
1.253 stredwic 9188: }
1.955 raeburn 9189: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 9190:
1.955 raeburn 9191: $dirRoot = $perlvar{'lonDocRoot'};
9192: if (defined($getpropath)) {
9193: $dirRoot = &propath($udom,$uname);
1.253 stredwic 9194: $dirRoot =~ s/\/$//;
1.955 raeburn 9195: } elsif (defined($getuserdir)) {
9196: my $subdir=$uname.'__';
9197: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
9198: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
9199: ."/$udom/$subdir/$uname";
9200: } elsif (defined($alternateRoot)) {
9201: $dirRoot = $alternateRoot;
1.751 banghart 9202: }
1.253 stredwic 9203:
9204: if($udom) {
9205: if($uname) {
1.1135 raeburn 9206: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 9207: if ($uhome eq 'no_host') {
9208: return ([],'no_host');
9209: }
1.955 raeburn 9210: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 9211: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 9212: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 9213: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9214: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 9215: } else {
9216: @listing_results = map { &unescape($_); } split(/:/,$listing);
9217: }
1.605 matthew 9218: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 9219: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 9220: @listing_results = split(/:/,$listing);
9221: } else {
9222: @listing_results = map { &unescape($_); } split(/:/,$listing);
9223: }
1.1135 raeburn 9224: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 9225: ($listing eq 'rejected') || ($listing eq 'refused') ||
9226: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9227: return ([],$listing);
9228: } else {
9229: return (\@listing_results);
1.1135 raeburn 9230: }
1.955 raeburn 9231: } elsif(!$alternateRoot) {
1.1136 raeburn 9232: my (%allusers,%listerror);
1.841 albertel 9233: my %servers = &get_servers($udom,'library');
1.955 raeburn 9234: foreach my $tryserver (keys(%servers)) {
9235: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
9236: &escape($udom),$tryserver);
9237: if ($listing eq 'unknown_cmd') {
9238: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
9239: $udom, $tryserver);
9240: } else {
9241: @listing_results = map { &unescape($_); } split(/:/,$listing);
9242: }
1.841 albertel 9243: if ($listing eq 'unknown_cmd') {
9244: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
9245: $udom, $tryserver);
9246: @listing_results = split(/:/,$listing);
9247: } else {
9248: @listing_results =
9249: map { &unescape($_); } split(/:/,$listing);
9250: }
1.1136 raeburn 9251: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
9252: ($listing eq 'rejected') || ($listing eq 'refused') ||
9253: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
9254: $listerror{$tryserver} = $listing;
9255: } else {
1.841 albertel 9256: foreach my $line (@listing_results) {
9257: my ($entry) = split(/&/,$line,2);
9258: $allusers{$entry} = 1;
9259: }
9260: }
1.253 stredwic 9261: }
1.1136 raeburn 9262: my @alluserslist=();
1.800 albertel 9263: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 9264: push(@alluserslist,$user.'&user');
1.253 stredwic 9265: }
1.1136 raeburn 9266: return (\@alluserslist);
1.253 stredwic 9267: } else {
1.1136 raeburn 9268: return ([],'missing username');
1.253 stredwic 9269: }
1.955 raeburn 9270: } elsif(!defined($getpropath)) {
1.1136 raeburn 9271: my $path = $perlvar{'lonDocRoot'}.'/res/';
9272: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
9273: return (\@all_domains);
1.955 raeburn 9274: } else {
1.1136 raeburn 9275: return ([],'missing domain');
1.275 stredwic 9276: }
9277: }
9278:
9279: # --------------------------------------------- GetFileTimestamp
9280: # This function utilizes dirlist and returns the date stamp for
9281: # when it was last modified. It will also return an error of -1
9282: # if an error occurs
9283:
9284: sub GetFileTimestamp {
1.955 raeburn 9285: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 9286: $studentDomain = &LONCAPA::clean_domain($studentDomain);
9287: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 9288: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
9289: undef,$getuserdir);
9290: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9291: return -1;
9292: }
9293: if (ref($fileref) eq 'ARRAY') {
9294: my @stats = split('&',$fileref->[0]);
1.375 matthew 9295: # @stats contains first the filename, then the stat output
9296: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 9297: } else {
9298: return -1;
1.253 stredwic 9299: }
1.26 www 9300: }
9301:
1.712 albertel 9302: sub stat_file {
9303: my ($uri) = @_;
1.787 albertel 9304: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 9305:
1.955 raeburn 9306: my ($udom,$uname,$file);
1.712 albertel 9307: if ($uri =~ m-^/(uploaded|editupload)/-) {
9308: ($udom,$uname,$file) =
1.811 albertel 9309: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 9310: $file = 'userfiles/'.$file;
9311: }
9312: if ($uri =~ m-^/res/-) {
9313: ($udom,$uname) =
1.807 albertel 9314: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 9315: $file = $uri;
9316: }
9317:
9318: if (!$udom || !$uname || !$file) {
9319: # unable to handle the uri
9320: return ();
9321: }
1.956 raeburn 9322: my $getpropath;
9323: if ($file =~ /^userfiles\//) {
9324: $getpropath = 1;
9325: }
1.1136 raeburn 9326: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
9327: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
9328: return ();
9329: } else {
9330: if (ref($listref) eq 'ARRAY') {
9331: my @stats = split('&',$listref->[0]);
9332: shift(@stats); #filename is first
9333: return @stats;
9334: }
1.712 albertel 9335: }
9336: return ();
9337: }
9338:
1.26 www 9339: # -------------------------------------------------------- Value of a Condition
9340:
1.713 albertel 9341: # gets the value of a specific preevaluated condition
9342: # stored in the string $env{user.state.<cid>}
9343: # or looks up a condition reference in the bighash and if if hasn't
9344: # already been evaluated recurses into docondval to get the value of
9345: # the condition, then memoizing it to
9346: # $env{user.state.<cid>.<condition>}
1.40 www 9347: sub directcondval {
9348: my $number=shift;
1.620 albertel 9349: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 9350: &Apache::lonuserstate::evalstate();
9351: }
1.713 albertel 9352: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
9353: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
9354: } elsif ($number =~ /^_/) {
9355: my $sub_condition;
9356: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
9357: &GDBM_READER(),0640)) {
9358: $sub_condition=$bighash{'conditions'.$number};
9359: untie(%bighash);
9360: }
9361: my $value = &docondval($sub_condition);
1.949 raeburn 9362: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 9363: return $value;
9364: }
1.620 albertel 9365: if ($env{'user.state.'.$env{'request.course.id'}}) {
9366: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 9367: } else {
9368: return 2;
9369: }
9370: }
9371:
1.713 albertel 9372: # get the collection of conditions for this resource
1.26 www 9373: sub condval {
9374: my $condidx=shift;
1.54 www 9375: my $allpathcond='';
1.713 albertel 9376: foreach my $cond (split(/\|/,$condidx)) {
9377: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
9378: $allpathcond.=
9379: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
9380: }
1.191 harris41 9381: }
1.54 www 9382: $allpathcond=~s/\|$//;
1.713 albertel 9383: return &docondval($allpathcond);
9384: }
9385:
9386: #evaluates an expression of conditions
9387: sub docondval {
9388: my ($allpathcond) = @_;
9389: my $result=0;
9390: if ($env{'request.course.id'}
9391: && defined($allpathcond)) {
9392: my $operand='|';
9393: my @stack;
9394: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
9395: if ($chunk eq '(') {
9396: push @stack,($operand,$result);
9397: } elsif ($chunk eq ')') {
9398: my $before=pop @stack;
9399: if (pop @stack eq '&') {
9400: $result=$result>$before?$before:$result;
9401: } else {
9402: $result=$result>$before?$result:$before;
9403: }
9404: } elsif (($chunk eq '&') || ($chunk eq '|')) {
9405: $operand=$chunk;
9406: } else {
9407: my $new=directcondval($chunk);
9408: if ($operand eq '&') {
9409: $result=$result>$new?$new:$result;
9410: } else {
9411: $result=$result>$new?$result:$new;
9412: }
9413: }
9414: }
1.26 www 9415: }
9416: return $result;
1.421 albertel 9417: }
9418:
9419: # ---------------------------------------------------- Devalidate courseresdata
9420:
9421: sub devalidatecourseresdata {
9422: my ($coursenum,$coursedomain)=@_;
9423: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9424: &devalidate_cache_new('courseres',$hashid);
1.28 www 9425: }
9426:
1.763 www 9427:
1.200 www 9428: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 9429: #
9430: # Parameters:
9431: # $coursenum - Number of the course.
9432: # $coursedomain - Domain at which the course was created.
9433: # Returns:
9434: # A hash of the course parameters along (I think) with timestamps
9435: # and version info.
1.877 foxr 9436:
1.624 albertel 9437: sub get_courseresdata {
9438: my ($coursenum,$coursedomain)=@_;
1.200 www 9439: my $coursehom=&homeserver($coursenum,$coursedomain);
9440: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 9441: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 9442: my %dumpreply;
1.417 albertel 9443: unless (defined($cached)) {
1.624 albertel 9444: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 9445: $result=\%dumpreply;
1.251 albertel 9446: my ($tmp) = keys(%dumpreply);
9447: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 9448: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 9449: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
9450: return $tmp;
1.416 albertel 9451: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 9452: $result=undef;
1.599 albertel 9453: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 9454: }
9455: }
1.624 albertel 9456: return $result;
9457: }
9458:
1.633 albertel 9459: sub devalidateuserresdata {
9460: my ($uname,$udom)=@_;
9461: my $hashid="$udom:$uname";
9462: &devalidate_cache_new('userres',$hashid);
9463: }
9464:
1.624 albertel 9465: sub get_userresdata {
9466: my ($uname,$udom)=@_;
9467: #most student don\'t have any data set, check if there is some data
9468: if (&EXT_cache_status($udom,$uname)) { return undef; }
9469:
9470: my $hashid="$udom:$uname";
9471: my ($result,$cached)=&is_cached_new('userres',$hashid);
9472: if (!defined($cached)) {
9473: my %resourcedata=&dump('resourcedata',$udom,$uname);
9474: $result=\%resourcedata;
9475: &do_cache_new('userres',$hashid,$result,600);
9476: }
9477: my ($tmp)=keys(%$result);
9478: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
9479: return $result;
9480: }
9481: #error 2 occurs when the .db doesn't exist
9482: if ($tmp!~/error: 2 /) {
1.672 albertel 9483: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 9484: " Trying to get resource data for ".
9485: $uname." at ".$udom.": ".
9486: $tmp."</font>");
9487: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 9488: #&EXT_cache_set($udom,$uname);
9489: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 9490: undef($tmp); # not really an error so don't send it back
1.624 albertel 9491: }
9492: return $tmp;
9493: }
1.879 foxr 9494: #----------------------------------------------- resdata - return resource data
9495: # Purpose:
9496: # Return resource data for either users or for a course.
9497: # Parameters:
9498: # $name - Course/user name.
9499: # $domain - Name of the domain the user/course is registered on.
9500: # $type - Type of thing $name is (must be 'course' or 'user'
9501: # @which - Array of names of resources desired.
9502: # Returns:
9503: # The value of the first reasource in @which that is found in the
9504: # resource hash.
9505: # Exceptional Conditions:
9506: # If the $type passed in is not valid (not the string 'course' or
9507: # 'user', an undefined reference is returned.
9508: # If none of the resources are found, an undef is returned
1.624 albertel 9509: sub resdata {
9510: my ($name,$domain,$type,@which)=@_;
9511: my $result;
9512: if ($type eq 'course') {
9513: $result=&get_courseresdata($name,$domain);
9514: } elsif ($type eq 'user') {
9515: $result=&get_userresdata($name,$domain);
9516: }
9517: if (!ref($result)) { return $result; }
1.251 albertel 9518: foreach my $item (@which) {
1.927 albertel 9519: if (defined($result->{$item->[0]})) {
9520: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 9521: }
1.250 albertel 9522: }
1.291 albertel 9523: return undef;
1.200 www 9524: }
9525:
1.379 matthew 9526: #
9527: # EXT resource caching routines
9528: #
9529:
9530: sub clear_EXT_cache_status {
1.383 albertel 9531: &delenv('cache.EXT.');
1.379 matthew 9532: }
9533:
9534: sub EXT_cache_status {
9535: my ($target_domain,$target_user) = @_;
1.383 albertel 9536: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 9537: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 9538: # We know already the user has no data
9539: return 1;
9540: } else {
9541: return 0;
9542: }
9543: }
9544:
9545: sub EXT_cache_set {
9546: my ($target_domain,$target_user) = @_;
1.383 albertel 9547: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 9548: #&appenv({$cachename => time});
1.379 matthew 9549: }
9550:
1.28 www 9551: # --------------------------------------------------------- Value of a Variable
1.58 www 9552: sub EXT {
1.715 albertel 9553:
1.395 albertel 9554: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 9555: unless ($varname) { return ''; }
1.218 albertel 9556: #get real user name/domain, courseid and symb
9557: my $courseid;
1.359 albertel 9558: my $publicuser;
1.427 www 9559: if ($symbparm) {
9560: $symbparm=&get_symb_from_alias($symbparm);
9561: }
1.218 albertel 9562: if (!($uname && $udom)) {
1.790 albertel 9563: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 9564: if (!$symbparm) { $symbparm=$cursymb; }
9565: } else {
1.620 albertel 9566: $courseid=$env{'request.course.id'};
1.218 albertel 9567: }
1.48 www 9568: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
9569: my $rest;
1.320 albertel 9570: if (defined($therest[0])) {
1.48 www 9571: $rest=join('.',@therest);
9572: } else {
9573: $rest='';
9574: }
1.320 albertel 9575:
1.57 www 9576: my $qualifierrest=$qualifier;
9577: if ($rest) { $qualifierrest.='.'.$rest; }
9578: my $spacequalifierrest=$space;
9579: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 9580: if ($realm eq 'user') {
1.48 www 9581: # --------------------------------------------------------------- user.resource
9582: if ($space eq 'resource') {
1.651 albertel 9583: if ( (defined($Apache::lonhomework::parsing_a_problem)
9584: || defined($Apache::lonhomework::parsing_a_task))
9585: &&
1.744 albertel 9586: ($symbparm eq &symbread()) ) {
9587: # if we are in the middle of processing the resource the
9588: # get the value we are planning on committing
9589: if (defined($Apache::lonhomework::results{$qualifierrest})) {
9590: return $Apache::lonhomework::results{$qualifierrest};
9591: } else {
9592: return $Apache::lonhomework::history{$qualifierrest};
9593: }
1.335 albertel 9594: } else {
1.359 albertel 9595: my %restored;
1.620 albertel 9596: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 9597: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
9598: } else {
9599: %restored=&restore($symbparm,$courseid,$udom,$uname);
9600: }
1.335 albertel 9601: return $restored{$qualifierrest};
9602: }
1.48 www 9603: # ----------------------------------------------------------------- user.access
9604: } elsif ($space eq 'access') {
1.218 albertel 9605: # FIXME - not supporting calls for a specific user
1.48 www 9606: return &allowed($qualifier,$rest);
9607: # ------------------------------------------ user.preferences, user.environment
9608: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 9609: if (($uname eq $env{'user.name'}) &&
9610: ($udom eq $env{'user.domain'})) {
9611: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 9612: } else {
1.359 albertel 9613: my %returnhash;
9614: if (!$publicuser) {
9615: %returnhash=&userenvironment($udom,$uname,
9616: $qualifierrest);
9617: }
1.218 albertel 9618: return $returnhash{$qualifierrest};
9619: }
1.48 www 9620: # ----------------------------------------------------------------- user.course
9621: } elsif ($space eq 'course') {
1.218 albertel 9622: # FIXME - not supporting calls for a specific user
1.620 albertel 9623: return $env{join('.',('request.course',$qualifier))};
1.48 www 9624: # ------------------------------------------------------------------- user.role
9625: } elsif ($space eq 'role') {
1.218 albertel 9626: # FIXME - not supporting calls for a specific user
1.620 albertel 9627: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 9628: if ($qualifier eq 'value') {
9629: return $role;
9630: } elsif ($qualifier eq 'extent') {
9631: return $where;
9632: }
9633: # ----------------------------------------------------------------- user.domain
9634: } elsif ($space eq 'domain') {
1.218 albertel 9635: return $udom;
1.48 www 9636: # ------------------------------------------------------------------- user.name
9637: } elsif ($space eq 'name') {
1.218 albertel 9638: return $uname;
1.48 www 9639: # ---------------------------------------------------- Any other user namespace
1.29 www 9640: } else {
1.359 albertel 9641: my %reply;
9642: if (!$publicuser) {
9643: %reply=&get($space,[$qualifierrest],$udom,$uname);
9644: }
9645: return $reply{$qualifierrest};
1.48 www 9646: }
1.236 www 9647: } elsif ($realm eq 'query') {
9648: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 9649: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
9650: [$spacequalifierrest]);
1.620 albertel 9651: return $env{'form.'.$spacequalifierrest};
1.236 www 9652: } elsif ($realm eq 'request') {
1.48 www 9653: # ------------------------------------------------------------- request.browser
9654: if ($space eq 'browser') {
1.1145 bisitz 9655: return $env{'browser.'.$qualifier};
1.57 www 9656: # ------------------------------------------------------------ request.filename
9657: } else {
1.620 albertel 9658: return $env{'request.'.$spacequalifierrest};
1.29 www 9659: }
1.28 www 9660: } elsif ($realm eq 'course') {
1.48 www 9661: # ---------------------------------------------------------- course.description
1.620 albertel 9662: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 9663: } elsif ($realm eq 'resource') {
1.165 www 9664:
1.620 albertel 9665: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 9666: if (!$symbparm) { $symbparm=&symbread(); }
9667: }
1.693 albertel 9668:
9669: if ($space eq 'title') {
9670: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
9671: return &gettitle($symbparm);
9672: }
9673:
9674: if ($space eq 'map') {
9675: my ($map) = &decode_symb($symbparm);
9676: return &symbread($map);
9677: }
1.905 albertel 9678: if ($space eq 'filename') {
9679: if ($symbparm) {
9680: return &clutter((&decode_symb($symbparm))[2]);
9681: }
9682: return &hreflocation('',$env{'request.filename'});
9683: }
1.693 albertel 9684:
9685: my ($section, $group, @groups);
1.593 albertel 9686: my ($courselevelm,$courselevel);
1.539 albertel 9687: if ($symbparm && defined($courseid) &&
1.620 albertel 9688: $courseid eq $env{'request.course.id'}) {
1.165 www 9689:
1.218 albertel 9690: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 9691:
1.60 www 9692: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 9693: my $symbp=$symbparm;
1.735 albertel 9694: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 9695:
9696: my $symbparm=$symbp.'.'.$spacequalifierrest;
9697: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
9698:
1.620 albertel 9699: if (($env{'user.name'} eq $uname) &&
9700: ($env{'user.domain'} eq $udom)) {
9701: $section=$env{'request.course.sec'};
1.733 raeburn 9702: @groups = split(/:/,$env{'request.course.groups'});
9703: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 9704: } else {
1.539 albertel 9705: if (! defined($usection)) {
1.551 albertel 9706: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 9707: } else {
9708: $section = $usection;
9709: }
1.733 raeburn 9710: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 9711: }
9712:
9713: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
9714: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
9715: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
9716:
1.593 albertel 9717: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 9718: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 9719: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 9720:
1.60 www 9721: # ----------------------------------------------------------- first, check user
1.624 albertel 9722:
9723: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 9724: ([$courselevelr,'resource'],
9725: [$courselevelm,'map' ],
9726: [$courselevel, 'course' ]));
1.931 albertel 9727: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 9728:
1.594 albertel 9729: # ------------------------------------------------ second, check some of course
1.684 raeburn 9730: my $coursereply;
1.691 raeburn 9731: if (@groups > 0) {
9732: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
9733: $mapparm,$spacequalifierrest);
1.927 albertel 9734: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 9735: }
1.96 www 9736:
1.684 raeburn 9737: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 9738: $env{'course.'.$courseid.'.domain'},
9739: 'course',
9740: ([$seclevelr, 'resource'],
9741: [$seclevelm, 'map' ],
9742: [$seclevel, 'course' ],
9743: [$courselevelr,'resource']));
9744: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 9745:
1.60 www 9746: # ------------------------------------------------------ third, check map parms
1.218 albertel 9747: my %parmhash=();
9748: my $thisparm='';
9749: if (tie(%parmhash,'GDBM_File',
1.620 albertel 9750: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 9751: &GDBM_READER(),0640)) {
1.218 albertel 9752: $thisparm=$parmhash{$symbparm};
9753: untie(%parmhash);
9754: }
1.927 albertel 9755: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 9756: }
1.594 albertel 9757: # ------------------------------------------ fourth, look in resource metadata
1.71 www 9758:
1.218 albertel 9759: $spacequalifierrest=~s/\./\_/;
1.282 albertel 9760: my $filename;
9761: if (!$symbparm) { $symbparm=&symbread(); }
9762: if ($symbparm) {
1.409 www 9763: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 9764: } else {
1.620 albertel 9765: $filename=$env{'request.filename'};
1.282 albertel 9766: }
9767: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 9768: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 9769: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 9770: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 9771:
1.927 albertel 9772: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 9773: if ($symbparm && defined($courseid) &&
1.620 albertel 9774: $courseid eq $env{'request.course.id'}) {
1.624 albertel 9775: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
9776: $env{'course.'.$courseid.'.domain'},
9777: 'course',
1.927 albertel 9778: ([$courselevelm,'map' ],
9779: [$courselevel, 'course']));
9780: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 9781: }
1.145 www 9782: # ------------------------------------------------------------------ Cascade up
1.218 albertel 9783: unless ($space eq '0') {
1.336 albertel 9784: my @parts=split(/_/,$space);
9785: my $id=pop(@parts);
9786: my $part=join('_',@parts);
9787: if ($part eq '') { $part='0'; }
1.927 albertel 9788: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 9789: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 9790: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 9791: }
1.395 albertel 9792: if ($recurse) { return undef; }
9793: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 9794: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 9795: # ---------------------------------------------------- Any other user namespace
9796: } elsif ($realm eq 'environment') {
9797: # ----------------------------------------------------------------- environment
1.620 albertel 9798: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
9799: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 9800: } else {
1.770 albertel 9801: if ($uname eq 'anonymous' && $udom eq '') {
9802: return '';
9803: }
1.219 albertel 9804: my %returnhash=&userenvironment($udom,$uname,
9805: $spacequalifierrest);
9806: return $returnhash{$spacequalifierrest};
9807: }
1.28 www 9808: } elsif ($realm eq 'system') {
1.48 www 9809: # ----------------------------------------------------------------- system.time
9810: if ($space eq 'time') {
9811: return time;
9812: }
1.696 albertel 9813: } elsif ($realm eq 'server') {
9814: # ----------------------------------------------------------------- system.time
9815: if ($space eq 'name') {
9816: return $ENV{'SERVER_NAME'};
9817: }
1.28 www 9818: }
1.48 www 9819: return '';
1.61 www 9820: }
9821:
1.927 albertel 9822: sub get_reply {
9823: my ($reply_value) = @_;
1.940 raeburn 9824: if (ref($reply_value) eq 'ARRAY') {
9825: if (wantarray) {
9826: return @$reply_value;
9827: }
9828: return $reply_value->[0];
9829: } else {
9830: return $reply_value;
1.927 albertel 9831: }
9832: }
9833:
1.691 raeburn 9834: sub check_group_parms {
9835: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
9836: my @groupitems = ();
9837: my $resultitem;
1.927 albertel 9838: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 9839: foreach my $group (@{$groups}) {
9840: foreach my $level (@levels) {
1.927 albertel 9841: my $item = $courseid.'.['.$group.'].'.$level->[0];
9842: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 9843: }
9844: }
9845: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
9846: $env{'course.'.$courseid.'.domain'},
9847: 'course',@groupitems);
9848: return $coursereply;
9849: }
9850:
9851: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 9852: my ($courseid,@groups) = @_;
9853: @groups = sort(@groups);
1.691 raeburn 9854: return @groups;
9855: }
9856:
1.395 albertel 9857: sub packages_tab_default {
9858: my ($uri,$varname)=@_;
9859: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 9860:
9861: my (@extension,@specifics,$do_default);
9862: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 9863: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 9864: if ($pack_type eq 'default') {
9865: $do_default=1;
9866: } elsif ($pack_type eq 'extension') {
9867: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 9868: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 9869: # only look at packages defaults for packages that this id is
1.738 albertel 9870: push(@specifics,[$package,$pack_type,$pack_part]);
9871: }
9872: }
9873: # first look for a package that matches the requested part id
9874: foreach my $package (@specifics) {
9875: my (undef,$pack_type,$pack_part)=@{$package};
9876: next if ($pack_part ne $part);
9877: if (defined($packagetab{"$pack_type&$name&default"})) {
9878: return $packagetab{"$pack_type&$name&default"};
9879: }
9880: }
9881: # look for any possible matching non extension_ package
9882: foreach my $package (@specifics) {
9883: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 9884: if (defined($packagetab{"$pack_type&$name&default"})) {
9885: return $packagetab{"$pack_type&$name&default"};
9886: }
1.585 albertel 9887: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 9888: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
9889: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 9890: }
9891: }
1.738 albertel 9892: # look for any posible extension_ match
9893: foreach my $package (@extension) {
9894: my ($package,$pack_type)=@{$package};
9895: if (defined($packagetab{"$pack_type&$name&default"})) {
9896: return $packagetab{"$pack_type&$name&default"};
9897: }
9898: if (defined($packagetab{$package."&$name&default"})) {
9899: return $packagetab{$package."&$name&default"};
9900: }
9901: }
9902: # look for a global default setting
9903: if ($do_default && defined($packagetab{"default&$name&default"})) {
9904: return $packagetab{"default&$name&default"};
9905: }
1.395 albertel 9906: return undef;
9907: }
9908:
1.334 albertel 9909: sub add_prefix_and_part {
9910: my ($prefix,$part)=@_;
9911: my $keyroot;
9912: if (defined($prefix) && $prefix !~ /^__/) {
9913: # prefix that has a part already
9914: $keyroot=$prefix;
9915: } elsif (defined($prefix)) {
9916: # prefix that is missing a part
9917: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
9918: } else {
9919: # no prefix at all
9920: if (defined($part)) { $keyroot='_'.$part; }
9921: }
9922: return $keyroot;
9923: }
9924:
1.71 www 9925: # ---------------------------------------------------------------- Get metadata
9926:
1.599 albertel 9927: my %metaentry;
1.1070 www 9928: my %importedpartids;
1.71 www 9929: sub metadata {
1.176 www 9930: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 9931: $uri=&declutter($uri);
1.288 albertel 9932: # if it is a non metadata possible uri return quickly
1.529 albertel 9933: if (($uri eq '') ||
9934: (($uri =~ m|^/*adm/|) &&
1.698 albertel 9935: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.1108 raeburn 9936: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 9937: return undef;
9938: }
1.1140 www 9939: if (($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/)
1.924 albertel 9940: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 9941: return undef;
1.288 albertel 9942: }
1.73 www 9943: my $filename=$uri;
9944: $uri=~s/\.meta$//;
1.172 www 9945: #
9946: # Is the metadata already cached?
1.177 www 9947: # Look at timestamp of caching
1.172 www 9948: # Everything is cached by the main uri, libraries are never directly cached
9949: #
1.428 albertel 9950: if (!defined($liburi)) {
1.599 albertel 9951: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 9952: if (defined($cached)) { return $result->{':'.$what}; }
9953: }
9954: {
1.1069 www 9955: # Imported parts would go here
1.1070 www 9956: my %importedids=();
9957: my @origfileimportpartids=();
1.1069 www 9958: my $importedparts=0;
1.172 www 9959: #
9960: # Is this a recursive call for a library?
9961: #
1.599 albertel 9962: # if (! exists($metacache{$uri})) {
9963: # $metacache{$uri}={};
9964: # }
1.924 albertel 9965: my $cachetime = 60*60;
1.171 www 9966: if ($liburi) {
9967: $liburi=&declutter($liburi);
9968: $filename=$liburi;
1.401 bowersj2 9969: } else {
1.599 albertel 9970: &devalidate_cache_new('meta',$uri);
9971: undef(%metaentry);
1.401 bowersj2 9972: }
1.140 www 9973: my %metathesekeys=();
1.73 www 9974: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 9975: my $metastring;
1.1140 www 9976: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 9977: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 9978: $metastring =
1.929 albertel 9979: &Apache::lonnet::ssi_body($which,
1.924 albertel 9980: ('grade_target' => 'meta'));
9981: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 9982: } elsif (($uri !~ m -^(editupload)/-) &&
9983: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 9984: my $file=&filelocation('',&clutter($filename));
1.599 albertel 9985: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 9986: $metastring=&getfile($file);
1.489 albertel 9987: }
1.208 albertel 9988: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 9989: my $token;
1.140 www 9990: undef %metathesekeys;
1.71 www 9991: while ($token=$parser->get_token) {
1.339 albertel 9992: if ($token->[0] eq 'S') {
9993: if (defined($token->[2]->{'package'})) {
1.172 www 9994: #
9995: # This is a package - get package info
9996: #
1.339 albertel 9997: my $package=$token->[2]->{'package'};
9998: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
9999: if (defined($token->[2]->{'id'})) {
10000: $keyroot.='_'.$token->[2]->{'id'};
10001: }
1.599 albertel 10002: if ($metaentry{':packages'}) {
10003: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 10004: } else {
1.599 albertel 10005: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 10006: }
1.736 albertel 10007: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 10008: my $part=$keyroot;
10009: $part=~s/^\_//;
1.736 albertel 10010: if ($pack_entry=~/^\Q$package\E\&/ ||
10011: $pack_entry=~/^\Q$package\E_0\&/) {
10012: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 10013: # ignore package.tab specified default values
10014: # here &package_tab_default() will fetch those
10015: if ($subp eq 'default') { next; }
1.736 albertel 10016: my $value=$packagetab{$pack_entry};
1.432 albertel 10017: my $unikey;
10018: if ($pack =~ /_0$/) {
10019: $unikey='parameter_0_'.$name;
10020: $part=0;
10021: } else {
10022: $unikey='parameter'.$keyroot.'_'.$name;
10023: }
1.339 albertel 10024: if ($subp eq 'display') {
10025: $value.=' [Part: '.$part.']';
10026: }
1.599 albertel 10027: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 10028: $metathesekeys{$unikey}=1;
1.599 albertel 10029: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10030: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 10031: }
1.599 albertel 10032: if (defined($metaentry{':'.$unikey.'.default'})) {
10033: $metaentry{':'.$unikey}=
10034: $metaentry{':'.$unikey.'.default'};
1.356 albertel 10035: }
1.339 albertel 10036: }
10037: }
10038: } else {
1.172 www 10039: #
10040: # This is not a package - some other kind of start tag
1.339 albertel 10041: #
10042: my $entry=$token->[1];
1.1068 www 10043: my $unikey='';
1.175 www 10044:
1.339 albertel 10045: if ($entry eq 'import') {
1.175 www 10046: #
10047: # Importing a library here
1.339 albertel 10048: #
1.1067 www 10049: my $location=$parser->get_text('/import');
10050: my $dir=$filename;
10051: $dir=~s|[^/]*$||;
10052: $location=&filelocation($dir,$location);
1.1069 www 10053:
1.1068 www 10054: my $importmode=$token->[2]->{'importmode'};
10055: if ($importmode eq 'problem') {
1.1069 www 10056: # Import as problem/response
1.1068 www 10057: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10058: } elsif ($importmode eq 'part') {
10059: # Import as part(s)
1.1069 www 10060: $importedparts=1;
10061: # We need to get the original file and the imported file to get the part order correct
10062: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
10063: # Load and inspect original file
1.1070 www 10064: if ($#origfileimportpartids<0) {
10065: undef(%importedpartids);
10066: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
10067: my $origfile=&getfile($origfilelocation);
10068: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10069: }
10070:
1.1069 www 10071: # Load and inspect imported file
10072: my $impfile=&getfile($location);
10073: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
10074: if ($#impfilepartids>=0) {
10075: # This problem had parts
1.1070 www 10076: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 10077: } else {
10078: # Importing by turning a single problem into a problem part
10079: # It gets the import-tags ID as part-ID
10080: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 10081: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 10082: }
1.1068 www 10083: } else {
10084: # Normal import
10085: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
10086: if (defined($token->[2]->{'id'})) {
10087: $unikey.='_'.$token->[2]->{'id'};
10088: }
1.1067 www 10089: }
10090:
1.339 albertel 10091: if ($depthcount<20) {
1.736 albertel 10092: my $metadata =
10093: &metadata($uri,'keys', $location,$unikey,
10094: $depthcount+1);
10095: foreach my $meta (split(',',$metadata)) {
10096: $metaentry{':'.$meta}=$metaentry{':'.$meta};
10097: $metathesekeys{$meta}=1;
1.339 albertel 10098: }
1.1068 www 10099:
10100: }
1.1067 www 10101: } else {
10102: #
10103: # Not importing, some other kind of non-package, non-library start tag
10104: #
10105: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
10106: if (defined($token->[2]->{'id'})) {
10107: $unikey.='_'.$token->[2]->{'id'};
10108: }
1.339 albertel 10109: if (defined($token->[2]->{'name'})) {
10110: $unikey.='_'.$token->[2]->{'name'};
10111: }
10112: $metathesekeys{$unikey}=1;
1.736 albertel 10113: foreach my $param (@{$token->[3]}) {
10114: $metaentry{':'.$unikey.'.'.$param} =
10115: $token->[2]->{$param};
1.339 albertel 10116: }
10117: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 10118: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 10119: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
10120: # only ws inside the tag, and not in default, so use default
10121: # as value
1.599 albertel 10122: $metaentry{':'.$unikey}=$default;
1.908 albertel 10123: } elsif ( $internaltext =~ /\S/ ) {
10124: # something interesting inside the tag
10125: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 10126: } else {
1.908 albertel 10127: # no interesting values, don't set a default
1.339 albertel 10128: }
1.172 www 10129: # end of not-a-package not-a-library import
1.339 albertel 10130: }
1.172 www 10131: # end of not-a-package start tag
1.339 albertel 10132: }
1.172 www 10133: # the next is the end of "start tag"
1.339 albertel 10134: }
10135: }
1.483 albertel 10136: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 10137: $extension = lc($extension);
10138: if ($extension eq 'htm') { $extension='html'; }
10139:
1.737 albertel 10140: foreach my $key (keys(%packagetab)) {
1.483 albertel 10141: #no specific packages #how's our extension
10142: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 10143: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 10144: \%metathesekeys);
10145: }
1.883 albertel 10146:
10147: if (!exists($metaentry{':packages'})
10148: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 10149: foreach my $key (keys(%packagetab)) {
1.483 albertel 10150: #no specific packages well let's get default then
10151: if ($key!~/^default&/) { next; }
1.488 albertel 10152: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 10153: \%metathesekeys);
10154: }
10155: }
1.338 www 10156: # are there custom rights to evaluate
1.599 albertel 10157: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 10158:
1.338 www 10159: #
10160: # Importing a rights file here
1.339 albertel 10161: #
10162: unless ($depthcount) {
1.599 albertel 10163: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 10164: my $dir=$filename;
10165: $dir=~s|[^/]*$||;
10166: $location=&filelocation($dir,$location);
1.736 albertel 10167: my $rights_metadata =
10168: &metadata($uri,'keys',$location,'_rights',
10169: $depthcount+1);
10170: foreach my $rights (split(',',$rights_metadata)) {
10171: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
10172: $metathesekeys{$rights}=1;
1.339 albertel 10173: }
10174: }
10175: }
1.737 albertel 10176: # uniqifiy package listing
10177: my %seen;
10178: my @uniq_packages =
10179: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
10180: $metaentry{':packages'} = join(',',@uniq_packages);
10181:
1.1070 www 10182: if ($importedparts) {
10183: # We had imported parts and need to rebuild partorder
10184: $metaentry{':partorder'}='';
10185: $metathesekeys{'partorder'}=1;
10186: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
10187: if ($origfileimportpartids[$index] eq 'part') {
10188: # original part, part of the problem
10189: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
10190: } else {
10191: # we have imported parts at this position
10192: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
10193: }
10194: }
10195: $metaentry{':partorder'}=~s/^\,//;
10196: }
10197:
1.737 albertel 10198: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 10199: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
10200: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 10201: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 10202: # this is the end of "was not already recently cached
1.71 www 10203: }
1.599 albertel 10204: return $metaentry{':'.$what};
1.261 albertel 10205: }
10206:
1.488 albertel 10207: sub metadata_create_package_def {
1.483 albertel 10208: my ($uri,$key,$package,$metathesekeys)=@_;
10209: my ($pack,$name,$subp)=split(/\&/,$key);
10210: if ($subp eq 'default') { next; }
10211:
1.599 albertel 10212: if (defined($metaentry{':packages'})) {
10213: $metaentry{':packages'}.=','.$package;
1.483 albertel 10214: } else {
1.599 albertel 10215: $metaentry{':packages'}=$package;
1.483 albertel 10216: }
10217: my $value=$packagetab{$key};
10218: my $unikey;
10219: $unikey='parameter_0_'.$name;
1.599 albertel 10220: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 10221: $$metathesekeys{$unikey}=1;
1.599 albertel 10222: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
10223: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 10224: }
1.599 albertel 10225: if (defined($metaentry{':'.$unikey.'.default'})) {
10226: $metaentry{':'.$unikey}=
10227: $metaentry{':'.$unikey.'.default'};
1.483 albertel 10228: }
10229: }
10230:
1.261 albertel 10231: sub metadata_generate_part0 {
10232: my ($metadata,$metacache,$uri) = @_;
10233: my %allnames;
1.737 albertel 10234: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 10235: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 10236: my $part=$$metacache{':'.$metakey.'.part'};
10237: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 10238: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 10239: $allnames{$name}=$part;
10240: }
10241: }
10242: }
10243: foreach my $name (keys(%allnames)) {
10244: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 10245: my $key=":parameter_0_$name";
1.261 albertel 10246: $$metacache{"$key.part"}='0';
10247: $$metacache{"$key.name"}=$name;
1.428 albertel 10248: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 10249: $allnames{$name}.'_'.$name.
10250: '.type'};
1.428 albertel 10251: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 10252: '.display'};
1.644 www 10253: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 10254: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 10255: $$metacache{"$key.display"}=$olddis;
10256: }
1.71 www 10257: }
10258:
1.764 albertel 10259: # ------------------------------------------------------ Devalidate title cache
10260:
10261: sub devalidate_title_cache {
10262: my ($url)=@_;
10263: if (!$env{'request.course.id'}) { return; }
10264: my $symb=&symbread($url);
10265: if (!$symb) { return; }
10266: my $key=$env{'request.course.id'}."\0".$symb;
10267: &devalidate_cache_new('title',$key);
10268: }
10269:
1.1014 droeschl 10270: # ------------------------------------------------- Get the title of a course
10271:
10272: sub current_course_title {
10273: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
10274: }
1.301 www 10275: # ------------------------------------------------- Get the title of a resource
10276:
10277: sub gettitle {
10278: my $urlsymb=shift;
10279: my $symb=&symbread($urlsymb);
1.534 albertel 10280: if ($symb) {
1.620 albertel 10281: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 10282: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 10283: if (defined($cached)) {
10284: return $result;
10285: }
1.534 albertel 10286: my ($map,$resid,$url)=&decode_symb($symb);
10287: my $title='';
1.907 albertel 10288: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
10289: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
10290: } else {
10291: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10292: &GDBM_READER(),0640)) {
10293: my $mapid=$bighash{'map_pc_'.&clutter($map)};
10294: $title=$bighash{'title_'.$mapid.'.'.$resid};
10295: untie(%bighash);
10296: }
1.534 albertel 10297: }
10298: $title=~s/\&colon\;/\:/gs;
10299: if ($title) {
1.1159 www 10300: # Remember both $symb and $title for dynamic metadata
10301: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 10302: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 10303: # Cache this title and then return it
1.599 albertel 10304: return &do_cache_new('title',$key,$title,600);
1.534 albertel 10305: }
10306: $urlsymb=$url;
10307: }
10308: my $title=&metadata($urlsymb,'title');
10309: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
10310: return $title;
1.301 www 10311: }
1.613 albertel 10312:
1.1199 raeburn 10313: sub getdocspath {
10314: my ($symb) = @_;
10315: my $path;
10316: if ($symb) {
10317: my ($mapurl,$id,$resurl) = &decode_symb($symb);
10318: if ($resurl=~/\.(sequence|page)$/) {
10319: $mapurl=$resurl;
10320: } elsif ($resurl eq 'adm/navmaps') {
10321: $mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
10322: }
10323: my $mapresobj;
10324: my $navmap = Apache::lonnavmaps::navmap->new();
10325: if (ref($navmap)) {
10326: $mapresobj = $navmap->getResourceByUrl($mapurl);
10327: }
10328: $mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
10329: my $type=$2;
10330: if (ref($mapresobj)) {
10331: my $pcslist = $mapresobj->map_hierarchy();
10332: if ($pcslist ne '') {
10333: foreach my $pc (split(/,/,$pcslist)) {
10334: next if ($pc <= 1);
10335: my $res = $navmap->getByMapPc($pc);
10336: if (ref($res)) {
10337: my $thisurl = $res->src();
10338: $thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
10339: my $thistitle = $res->title();
10340: $path .= '&'.
10341: &Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
10342: &Apache::lonhtmlcommon::entity_encode($thistitle).
10343: ':'.$res->randompick().
10344: ':'.$res->randomout().
10345: ':'.$res->encrypted().
1.1205 raeburn 10346: ':'.$res->randomorder().
10347: ':'.$res->is_page();
1.1199 raeburn 10348: }
10349: }
10350: }
10351: $path =~ s/^\&//;
10352: my $maptitle = $mapresobj->title();
10353: if ($mapurl eq 'default') {
10354: $maptitle = 'Main Course Documents';
10355: }
10356: $path .= ($path ne '')? '&' : ''.
10357: &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
10358: &Apache::lonhtmlcommon::entity_encode($maptitle).
10359: ':'.$mapresobj->randompick().
10360: ':'.$mapresobj->randomout().
10361: ':'.$mapresobj->encrypted().
1.1205 raeburn 10362: ':'.$mapresobj->randomorder().
10363: ':'.$mapresobj->is_page();
1.1199 raeburn 10364: } else {
10365: my $maptitle = &gettitle($mapurl);
1.1205 raeburn 10366: my $ispage;
10367: if ($mapurl =~ /\.page$/) {
10368: $ispage = 1;
10369: }
1.1199 raeburn 10370: if ($mapurl eq 'default') {
10371: $maptitle = 'Main Course Documents';
10372: }
10373: $path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
1.1205 raeburn 10374: &Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
1.1199 raeburn 10375: }
10376: unless ($mapurl eq 'default') {
10377: $path = 'default&'.
10378: &Apache::lonhtmlcommon::entity_encode('Main Course Documents').
1.1205 raeburn 10379: ':::::&'.$path;
1.1199 raeburn 10380: }
10381: }
10382: return $path;
10383: }
10384:
1.614 albertel 10385: sub get_slot {
10386: my ($which,$cnum,$cdom)=@_;
10387: if (!$cnum || !$cdom) {
1.790 albertel 10388: (undef,my $courseid)=&whichuser();
1.620 albertel 10389: $cdom=$env{'course.'.$courseid.'.domain'};
10390: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 10391: }
1.703 albertel 10392: my $key=join("\0",'slots',$cdom,$cnum,$which);
10393: my %slotinfo;
10394: if (exists($remembered{$key})) {
10395: $slotinfo{$which} = $remembered{$key};
10396: } else {
10397: %slotinfo=&get('slots',[$which],$cdom,$cnum);
10398: &Apache::lonhomework::showhash(%slotinfo);
10399: my ($tmp)=keys(%slotinfo);
10400: if ($tmp=~/^error:/) { return (); }
10401: $remembered{$key} = $slotinfo{$which};
10402: }
1.616 albertel 10403: if (ref($slotinfo{$which}) eq 'HASH') {
10404: return %{$slotinfo{$which}};
10405: }
10406: return $slotinfo{$which};
1.614 albertel 10407: }
1.1150 raeburn 10408:
10409: sub get_reservable_slots {
10410: my ($cnum,$cdom,$uname,$udom) = @_;
10411: my $now = time;
10412: my $reservable_info;
10413: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
10414: if (exists($remembered{$key})) {
10415: $reservable_info = $remembered{$key};
10416: } else {
10417: my %resv;
10418: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
10419: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
10420: $reservable_info = \%resv;
10421: $remembered{$key} = $reservable_info;
10422: }
10423: return $reservable_info;
10424: }
10425:
10426: sub get_course_slots {
10427: my ($cnum,$cdom) = @_;
10428: my $hashid=$cnum.':'.$cdom;
10429: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
10430: if (defined($cached)) {
10431: if (ref($result) eq 'HASH') {
10432: return %{$result};
10433: }
10434: } else {
10435: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
10436: my ($tmp) = keys(%slots);
10437: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
10438: &Apache::lonnet::do_cache_new('allslots',$hashid,\%slots,600);
10439: return %slots;
10440: }
10441: }
10442: return;
10443: }
10444:
10445: sub devalidate_slots_cache {
10446: my ($cnum,$cdom)=@_;
10447: my $hashid=$cnum.':'.$cdom;
10448: &devalidate_cache_new('allslots',$hashid);
10449: }
10450:
1.1181 raeburn 10451: sub get_coursechange {
10452: my ($cdom,$cnum) = @_;
10453: if ($cdom eq '' || $cnum eq '') {
10454: return unless ($env{'request.course.id'});
10455: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
10456: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
10457: }
10458: my $hashid=$cdom.'_'.$cnum;
10459: my ($change,$cached)=&is_cached_new('crschange',$hashid);
10460: if ((defined($cached)) && ($change ne '')) {
10461: return $change;
10462: } else {
10463: my %crshash;
10464: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
10465: if ($crshash{'internal.contentchange'} eq '') {
10466: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
10467: if ($change eq '') {
10468: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
10469: $change = $crshash{'internal.created'};
10470: }
10471: } else {
10472: $change = $crshash{'internal.contentchange'};
10473: }
10474: my $cachetime = 600;
10475: &do_cache_new('crschange',$hashid,$change,$cachetime);
10476: }
10477: return $change;
10478: }
10479:
10480: sub devalidate_coursechange_cache {
10481: my ($cnum,$cdom)=@_;
10482: my $hashid=$cnum.':'.$cdom;
10483: &devalidate_cache_new('crschange',$hashid);
10484: }
10485:
1.31 www 10486: # ------------------------------------------------- Update symbolic store links
10487:
10488: sub symblist {
10489: my ($mapname,%newhash)=@_;
1.438 www 10490: $mapname=&deversion(&declutter($mapname));
1.31 www 10491: my %hash;
1.620 albertel 10492: if (($env{'request.course.fn'}) && (%newhash)) {
10493: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10494: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 10495: foreach my $url (keys(%newhash)) {
1.711 albertel 10496: next if ($url eq 'last_known'
10497: && $env{'form.no_update_last_known'});
10498: $hash{declutter($url)}=&encode_symb($mapname,
10499: $newhash{$url}->[1],
10500: $newhash{$url}->[0]);
1.191 harris41 10501: }
1.31 www 10502: if (untie(%hash)) {
10503: return 'ok';
10504: }
10505: }
10506: }
10507: return 'error';
1.212 www 10508: }
10509:
10510: # --------------------------------------------------------------- Verify a symb
10511:
10512: sub symbverify {
1.1190 raeburn 10513: my ($symb,$thisurl,$encstate)=@_;
1.510 www 10514: my $thisfn=$thisurl;
1.439 www 10515: $thisfn=&declutter($thisfn);
1.215 www 10516: # direct jump to resource in page or to a sequence - will construct own symbs
10517: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
10518: # check URL part
1.409 www 10519: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 10520:
1.431 www 10521: unless ($url eq $thisfn) { return 0; }
1.213 www 10522:
1.216 www 10523: $symb=&symbclean($symb);
1.510 www 10524: $thisurl=&deversion($thisurl);
1.439 www 10525: $thisfn=&deversion($thisfn);
1.213 www 10526:
10527: my %bighash;
10528: my $okay=0;
1.431 www 10529:
1.620 albertel 10530: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10531: &GDBM_READER(),0640)) {
1.1204 raeburn 10532: my $noclutter;
1.1032 raeburn 10533: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
10534: $thisurl =~ s/\?.+$//;
1.1204 raeburn 10535: if ($map =~ m{^uploaded/.+\.page$}) {
10536: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
10537: $thisurl =~ s{^\Qhttp://https://\E}{https://};
10538: $noclutter = 1;
10539: }
10540: }
10541: my $ids;
10542: if ($noclutter) {
10543: $ids=$bighash{'ids_'.$thisurl};
10544: } else {
10545: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 10546: }
1.1102 raeburn 10547: unless ($ids) {
10548: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
10549: $ids=$bighash{$idkey};
1.216 www 10550: }
10551: if ($ids) {
10552: # ------------------------------------------------------------------- Has ID(s)
1.1202 raeburn 10553: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
1.1203 raeburn 10554: $symb =~ s/\?.+$//;
1.1202 raeburn 10555: }
1.800 albertel 10556: foreach my $id (split(/\,/,$ids)) {
10557: my ($mapid,$resid)=split(/\./,$id);
1.216 www 10558: if (
10559: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1190 raeburn 10560: eq $symb) {
10561: if (ref($encstate)) {
10562: $$encstate = $bighash{'encrypted_'.$id};
10563: }
1.620 albertel 10564: if (($env{'request.role.adv'}) ||
1.1101 raeburn 10565: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
10566: ($thisurl eq '/adm/navmaps')) {
1.1190 raeburn 10567: $okay=1;
1.1202 raeburn 10568: last;
1.582 albertel 10569: }
10570: }
1.216 www 10571: }
10572: }
1.213 www 10573: untie(%bighash);
10574: }
10575: return $okay;
1.31 www 10576: }
10577:
1.210 www 10578: # --------------------------------------------------------------- Clean-up symb
10579:
10580: sub symbclean {
10581: my $symb=shift;
1.568 albertel 10582: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 10583: # remove version from map
10584: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 10585:
1.210 www 10586: # remove version from URL
10587: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 10588:
1.507 www 10589: # remove wrapper
10590:
1.510 www 10591: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 10592: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 10593: return $symb;
1.409 www 10594: }
10595:
10596: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 10597:
10598: sub encode_symb {
10599: my ($map,$resid,$url)=@_;
10600: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
10601: }
1.409 www 10602:
10603: sub decode_symb {
1.568 albertel 10604: my $symb=shift;
10605: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
10606: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 10607: return (&fixversion($map),$resid,&fixversion($url));
10608: }
10609:
10610: sub fixversion {
10611: my $fn=shift;
1.609 banghart 10612: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 10613: my %bighash;
10614: my $uri=&clutter($fn);
1.620 albertel 10615: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 10616: # is this cached?
1.599 albertel 10617: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 10618: if (defined($cached)) { return $result; }
10619: # unfortunately not cached, or expired
1.620 albertel 10620: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 10621: &GDBM_READER(),0640)) {
10622: if ($bighash{'version_'.$uri}) {
10623: my $version=$bighash{'version_'.$uri};
1.444 www 10624: unless (($version eq 'mostrecent') ||
10625: ($version==&getversion($uri))) {
1.440 www 10626: $uri=~s/\.(\w+)$/\.$version\.$1/;
10627: }
10628: }
10629: untie %bighash;
1.413 www 10630: }
1.599 albertel 10631: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 10632: }
10633:
10634: sub deversion {
10635: my $url=shift;
10636: $url=~s/\.\d+\.(\w+)$/\.$1/;
10637: return $url;
1.210 www 10638: }
10639:
1.31 www 10640: # ------------------------------------------------------ Return symb list entry
10641:
10642: sub symbread {
1.249 www 10643: my ($thisfn,$donotrecurse)=@_;
1.1206 raeburn 10644: my $cache_str;
10645: if ($thisfn ne '') {
10646: $cache_str='request.symbread.cached.'.$thisfn;
10647: if ($env{$cache_str} ne '') {
1.1179 raeburn 10648: return $env{$cache_str};
10649: }
1.1206 raeburn 10650: } else {
1.242 www 10651: # no filename provided? try from environment
1.620 albertel 10652: if ($env{'request.symb'}) {
10653: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 10654: }
1.620 albertel 10655: $thisfn=$env{'request.filename'};
1.44 www 10656: }
1.569 albertel 10657: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 10658: # is that filename actually a symb? Verify, clean, and return
10659: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 10660: if (&symbverify($thisfn,$1)) {
1.620 albertel 10661: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 10662: }
1.242 www 10663: }
1.44 www 10664: $thisfn=declutter($thisfn);
1.31 www 10665: my %hash;
1.37 www 10666: my %bighash;
10667: my $syval='';
1.620 albertel 10668: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 10669: my $targetfn = $thisfn;
1.609 banghart 10670: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 10671: $targetfn = 'adm/wrapper/'.$thisfn;
10672: }
1.687 albertel 10673: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
10674: $targetfn=$1;
10675: }
1.620 albertel 10676: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 10677: &GDBM_READER(),0640)) {
1.481 raeburn 10678: $syval=$hash{$targetfn};
1.37 www 10679: untie(%hash);
10680: }
10681: # ---------------------------------------------------------- There was an entry
10682: if ($syval) {
1.601 albertel 10683: #unless ($syval=~/\_\d+$/) {
1.620 albertel 10684: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 10685: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10686: #return $env{$cache_str}='';
1.601 albertel 10687: #}
10688: #$syval.=$1;
10689: #}
1.37 www 10690: } else {
10691: # ------------------------------------------------------- Was not in symb table
1.620 albertel 10692: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 10693: &GDBM_READER(),0640)) {
1.37 www 10694: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 10695: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 10696: unless ($ids) {
10697: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 10698: }
10699: unless ($ids) {
10700: # alias?
10701: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 10702: }
1.37 www 10703: if ($ids) {
10704: # ------------------------------------------------------------------- Has ID(s)
10705: my @possibilities=split(/\,/,$ids);
1.39 www 10706: if ($#possibilities==0) {
10707: # ----------------------------------------------- There is only one possibility
1.37 www 10708: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 10709: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10710: $resid,$thisfn);
1.249 www 10711: } elsif (!$donotrecurse) {
1.39 www 10712: # ------------------------------------------ There is more than one possibility
10713: my $realpossible=0;
1.800 albertel 10714: foreach my $id (@possibilities) {
10715: my $file=$bighash{'src_'.$id};
1.39 www 10716: if (&allowed('bre',$file)) {
1.800 albertel 10717: my ($mapid,$resid)=split(/\./,$id);
1.39 www 10718: if ($bighash{'map_type_'.$mapid} ne 'page') {
10719: $realpossible++;
1.626 albertel 10720: $syval=&encode_symb($bighash{'map_id_'.$mapid},
10721: $resid,$thisfn);
1.39 www 10722: }
10723: }
1.191 harris41 10724: }
1.39 www 10725: if ($realpossible!=1) { $syval=''; }
1.249 www 10726: } else {
10727: $syval='';
1.37 www 10728: }
10729: }
10730: untie(%bighash)
1.481 raeburn 10731: }
1.31 www 10732: }
1.62 www 10733: if ($syval) {
1.620 albertel 10734: return $env{$cache_str}=$syval;
1.62 www 10735: }
1.31 www 10736: }
1.949 raeburn 10737: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 10738: return $env{$cache_str}='';
1.31 www 10739: }
10740:
10741: # ---------------------------------------------------------- Return random seed
10742:
1.32 www 10743: sub numval {
10744: my $txt=shift;
10745: $txt=~tr/A-J/0-9/;
10746: $txt=~tr/a-j/0-9/;
10747: $txt=~tr/K-T/0-9/;
10748: $txt=~tr/k-t/0-9/;
10749: $txt=~tr/U-Z/0-5/;
10750: $txt=~tr/u-z/0-5/;
10751: $txt=~s/\D//g;
1.564 albertel 10752: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 10753: return int($txt);
1.368 albertel 10754: }
10755:
1.484 albertel 10756: sub numval2 {
10757: my $txt=shift;
10758: $txt=~tr/A-J/0-9/;
10759: $txt=~tr/a-j/0-9/;
10760: $txt=~tr/K-T/0-9/;
10761: $txt=~tr/k-t/0-9/;
10762: $txt=~tr/U-Z/0-5/;
10763: $txt=~tr/u-z/0-5/;
10764: $txt=~s/\D//g;
10765: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10766: my $total;
10767: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 10768: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 10769: return int($total);
10770: }
10771:
1.575 albertel 10772: sub numval3 {
10773: use integer;
10774: my $txt=shift;
10775: $txt=~tr/A-J/0-9/;
10776: $txt=~tr/a-j/0-9/;
10777: $txt=~tr/K-T/0-9/;
10778: $txt=~tr/k-t/0-9/;
10779: $txt=~tr/U-Z/0-5/;
10780: $txt=~tr/u-z/0-5/;
10781: $txt=~s/\D//g;
10782: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
10783: my $total;
10784: foreach my $val (@txts) { $total+=$val; }
10785: if ($_64bit) { $total=(($total<<32)>>32); }
10786: return $total;
10787: }
10788:
1.675 albertel 10789: sub digest {
10790: my ($data)=@_;
10791: my $digest=&Digest::MD5::md5($data);
10792: my ($a,$b,$c,$d)=unpack("iiii",$digest);
10793: my ($e,$f);
10794: {
10795: use integer;
10796: $e=($a+$b);
10797: $f=($c+$d);
10798: if ($_64bit) {
10799: $e=(($e<<32)>>32);
10800: $f=(($f<<32)>>32);
10801: }
10802: }
10803: if (wantarray) {
10804: return ($e,$f);
10805: } else {
10806: my $g;
10807: {
10808: use integer;
10809: $g=($e+$f);
10810: if ($_64bit) {
10811: $g=(($g<<32)>>32);
10812: }
10813: }
10814: return $g;
10815: }
10816: }
10817:
1.368 albertel 10818: sub latest_rnd_algorithm_id {
1.675 albertel 10819: return '64bit5';
1.366 albertel 10820: }
1.32 www 10821:
1.503 albertel 10822: sub get_rand_alg {
10823: my ($courseid)=@_;
1.790 albertel 10824: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 10825: if ($courseid) {
1.620 albertel 10826: return $env{"course.$courseid.rndseed"};
1.503 albertel 10827: }
10828: return &latest_rnd_algorithm_id();
10829: }
10830:
1.562 albertel 10831: sub validCODE {
10832: my ($CODE)=@_;
10833: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
10834: return 0;
10835: }
10836:
1.491 albertel 10837: sub getCODE {
1.620 albertel 10838: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 10839: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
10840: defined($Apache::lonhomework::parsing_a_task) ) &&
10841: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 10842: return $Apache::lonhomework::history{'resource.CODE'};
10843: }
10844: return undef;
10845: }
1.1133 foxr 10846: #
10847: # Determines the random seed for a specific context:
10848: #
10849: # parameters:
10850: # symb - in course context the symb for the seed.
10851: # course_id - The course id of the form domain_coursenum.
10852: # domain - Domain for the user.
10853: # course - Course for the user.
10854: # cenv - environment of the course.
10855: #
10856: # NOTE:
10857: # All parameters are picked out of the environment if missing
10858: # or not defined.
10859: # If a symb cannot be determined the current time is used instead.
10860: #
10861: # For a given well defined symb, courside, domain, username,
10862: # and course environment, the seed is reproducible.
10863: #
1.31 www 10864: sub rndseed {
1.1133 foxr 10865: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 10866: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 10867: if (!defined($symb)) {
1.366 albertel 10868: unless ($symb=$wsymb) { return time; }
10869: }
1.1146 foxr 10870: if (!defined $courseid) {
10871: $courseid=$wcourseid;
10872: }
10873: if (!defined $domain) { $domain=$wdomain; }
10874: if (!defined $username) { $username=$wusername }
1.1133 foxr 10875:
10876: my $which;
10877: if (defined($cenv->{'rndseed'})) {
10878: $which = $cenv->{'rndseed'};
10879: } else {
10880: $which =&get_rand_alg($courseid);
10881: }
1.491 albertel 10882: if (defined(&getCODE())) {
1.1133 foxr 10883:
1.675 albertel 10884: if ($which eq '64bit5') {
10885: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
10886: } elsif ($which eq '64bit4') {
1.575 albertel 10887: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
10888: } else {
10889: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
10890: }
1.675 albertel 10891: } elsif ($which eq '64bit5') {
10892: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 10893: } elsif ($which eq '64bit4') {
10894: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 10895: } elsif ($which eq '64bit3') {
10896: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 10897: } elsif ($which eq '64bit2') {
10898: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 10899: } elsif ($which eq '64bit') {
10900: return &rndseed_64bit($symb,$courseid,$domain,$username);
10901: }
10902: return &rndseed_32bit($symb,$courseid,$domain,$username);
10903: }
10904:
10905: sub rndseed_32bit {
10906: my ($symb,$courseid,$domain,$username)=@_;
10907: {
10908: use integer;
10909: my $symbchck=unpack("%32C*",$symb) << 27;
10910: my $symbseed=numval($symb) << 22;
10911: my $namechck=unpack("%32C*",$username) << 17;
10912: my $nameseed=numval($username) << 12;
10913: my $domainseed=unpack("%32C*",$domain) << 7;
10914: my $courseseed=unpack("%32C*",$courseid);
10915: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 10916: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10917: #&logthis("rndseed :$num:$symb");
1.564 albertel 10918: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 10919: return $num;
10920: }
10921: }
10922:
10923: sub rndseed_64bit {
10924: my ($symb,$courseid,$domain,$username)=@_;
10925: {
10926: use integer;
10927: my $symbchck=unpack("%32S*",$symb) << 21;
10928: my $symbseed=numval($symb) << 10;
10929: my $namechck=unpack("%32S*",$username);
10930:
10931: my $nameseed=numval($username) << 21;
10932: my $domainseed=unpack("%32S*",$domain) << 10;
10933: my $courseseed=unpack("%32S*",$courseid);
10934:
10935: my $num1=$symbchck+$symbseed+$namechck;
10936: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10937: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10938: #&logthis("rndseed :$num:$symb");
1.564 albertel 10939: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 10940: return "$num1,$num2";
1.155 albertel 10941: }
1.366 albertel 10942: }
10943:
1.443 albertel 10944: sub rndseed_64bit2 {
10945: my ($symb,$courseid,$domain,$username)=@_;
10946: {
10947: use integer;
10948: # strings need to be an even # of cahracters long, it it is odd the
10949: # last characters gets thrown away
10950: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10951: my $symbseed=numval($symb) << 10;
10952: my $namechck=unpack("%32S*",$username.' ');
10953:
10954: my $nameseed=numval($username) << 21;
1.501 albertel 10955: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10956: my $courseseed=unpack("%32S*",$courseid.' ');
10957:
10958: my $num1=$symbchck+$symbseed+$namechck;
10959: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10960: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10961: #&logthis("rndseed :$num:$symb");
1.803 albertel 10962: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 10963: return "$num1,$num2";
10964: }
10965: }
10966:
10967: sub rndseed_64bit3 {
10968: my ($symb,$courseid,$domain,$username)=@_;
10969: {
10970: use integer;
10971: # strings need to be an even # of cahracters long, it it is odd the
10972: # last characters gets thrown away
10973: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10974: my $symbseed=numval2($symb) << 10;
10975: my $namechck=unpack("%32S*",$username.' ');
10976:
10977: my $nameseed=numval2($username) << 21;
1.443 albertel 10978: my $domainseed=unpack("%32S*",$domain.' ') << 10;
10979: my $courseseed=unpack("%32S*",$courseid.' ');
10980:
10981: my $num1=$symbchck+$symbseed+$namechck;
10982: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 10983: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
10984: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 10985: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 10986:
1.503 albertel 10987: return "$num1:$num2";
1.443 albertel 10988: }
10989: }
10990:
1.575 albertel 10991: sub rndseed_64bit4 {
10992: my ($symb,$courseid,$domain,$username)=@_;
10993: {
10994: use integer;
10995: # strings need to be an even # of cahracters long, it it is odd the
10996: # last characters gets thrown away
10997: my $symbchck=unpack("%32S*",$symb.' ') << 21;
10998: my $symbseed=numval3($symb) << 10;
10999: my $namechck=unpack("%32S*",$username.' ');
11000:
11001: my $nameseed=numval3($username) << 21;
11002: my $domainseed=unpack("%32S*",$domain.' ') << 10;
11003: my $courseseed=unpack("%32S*",$courseid.' ');
11004:
11005: my $num1=$symbchck+$symbseed+$namechck;
11006: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 11007: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
11008: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 11009: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 11010:
1.575 albertel 11011: return "$num1:$num2";
11012: }
11013: }
11014:
1.675 albertel 11015: sub rndseed_64bit5 {
11016: my ($symb,$courseid,$domain,$username)=@_;
11017: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
11018: return "$num1:$num2";
11019: }
11020:
1.366 albertel 11021: sub rndseed_CODE_64bit {
11022: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 11023: {
1.366 albertel 11024: use integer;
1.443 albertel 11025: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 11026: my $symbseed=numval2($symb);
1.491 albertel 11027: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11028: my $CODEseed=numval(&getCODE());
1.443 albertel 11029: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 11030: my $num1=$symbseed+$CODEchck;
11031: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11032: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11033: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 11034: if ($_64bit) { $num1=(($num1<<32)>>32); }
11035: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 11036: return "$num1:$num2";
1.366 albertel 11037: }
11038: }
11039:
1.575 albertel 11040: sub rndseed_CODE_64bit4 {
11041: my ($symb,$courseid,$domain,$username)=@_;
11042: {
11043: use integer;
11044: my $symbchck=unpack("%32S*",$symb.' ') << 16;
11045: my $symbseed=numval3($symb);
11046: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
11047: my $CODEseed=numval3(&getCODE());
11048: my $courseseed=unpack("%32S*",$courseid.' ');
11049: my $num1=$symbseed+$CODEchck;
11050: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 11051: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
11052: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 11053: if ($_64bit) { $num1=(($num1<<32)>>32); }
11054: if ($_64bit) { $num2=(($num2<<32)>>32); }
11055: return "$num1:$num2";
11056: }
11057: }
11058:
1.675 albertel 11059: sub rndseed_CODE_64bit5 {
11060: my ($symb,$courseid,$domain,$username)=@_;
11061: my $code = &getCODE();
11062: my ($num1,$num2)=&digest("$symb,$courseid,$code");
11063: return "$num1:$num2";
11064: }
11065:
1.366 albertel 11066: sub setup_random_from_rndseed {
11067: my ($rndseed)=@_;
1.503 albertel 11068: if ($rndseed =~/([,:])/) {
11069: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 11070: &Math::Random::random_set_seed(abs($num1),abs($num2));
11071: } else {
11072: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 11073: }
1.36 albertel 11074: }
11075:
1.474 albertel 11076: sub latest_receipt_algorithm_id {
1.835 albertel 11077: return 'receipt3';
1.474 albertel 11078: }
11079:
1.480 www 11080: sub recunique {
11081: my $fucourseid=shift;
11082: my $unique;
1.835 albertel 11083: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
11084: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11085: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 11086: } else {
11087: $unique=$perlvar{'lonReceipt'};
11088: }
11089: return unpack("%32C*",$unique);
11090: }
11091:
11092: sub recprefix {
11093: my $fucourseid=shift;
11094: my $prefix;
1.835 albertel 11095: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
11096: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 11097: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 11098: } else {
11099: $prefix=$perlvar{'lonHostID'};
11100: }
11101: return unpack("%32C*",$prefix);
11102: }
11103:
1.76 www 11104: sub ireceipt {
1.474 albertel 11105: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 11106:
11107: my $return =&recprefix($fucourseid).'-';
11108:
11109: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
11110: $env{'request.state'} eq 'construct') {
11111: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
11112: return $return;
11113: }
11114:
1.76 www 11115: my $cuname=unpack("%32C*",$funame);
11116: my $cudom=unpack("%32C*",$fudom);
11117: my $cucourseid=unpack("%32C*",$fucourseid);
11118: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 11119: my $cunique=&recunique($fucourseid);
1.474 albertel 11120: my $cpart=unpack("%32S*",$part);
1.835 albertel 11121: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
11122:
1.790 albertel 11123: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 11124:
11125: $return.= ($cunique%$cuname+
11126: $cunique%$cudom+
11127: $cusymb%$cuname+
11128: $cusymb%$cudom+
11129: $cucourseid%$cuname+
11130: $cucourseid%$cudom+
11131: $cpart%$cuname+
11132: $cpart%$cudom);
11133: } else {
11134: $return.= ($cunique%$cuname+
11135: $cunique%$cudom+
11136: $cusymb%$cuname+
11137: $cusymb%$cudom+
11138: $cucourseid%$cuname+
11139: $cucourseid%$cudom);
11140: }
11141: return $return;
1.76 www 11142: }
11143:
11144: sub receipt {
1.474 albertel 11145: my ($part)=@_;
1.790 albertel 11146: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 11147: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 11148: }
1.260 ng 11149:
1.790 albertel 11150: sub whichuser {
11151: my ($passedsymb)=@_;
11152: my ($symb,$courseid,$domain,$name,$publicuser);
11153: if (defined($env{'form.grade_symb'})) {
11154: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
11155: my $allowed=&allowed('vgr',$tmp_courseid);
11156: if (!$allowed &&
11157: exists($env{'request.course.sec'}) &&
11158: $env{'request.course.sec'} !~ /^\s*$/) {
11159: $allowed=&allowed('vgr',$tmp_courseid.
11160: '/'.$env{'request.course.sec'});
11161: }
11162: if ($allowed) {
11163: ($symb)=&get_env_multiple('form.grade_symb');
11164: $courseid=$tmp_courseid;
11165: ($domain)=&get_env_multiple('form.grade_domain');
11166: ($name)=&get_env_multiple('form.grade_username');
11167: return ($symb,$courseid,$domain,$name,$publicuser);
11168: }
11169: }
11170: if (!$passedsymb) {
11171: $symb=&symbread();
11172: } else {
11173: $symb=$passedsymb;
11174: }
11175: $courseid=$env{'request.course.id'};
11176: $domain=$env{'user.domain'};
11177: $name=$env{'user.name'};
11178: if ($name eq 'public' && $domain eq 'public') {
11179: if (!defined($env{'form.username'})) {
11180: $env{'form.username'}.=time.rand(10000000);
11181: }
11182: $name.=$env{'form.username'};
11183: }
11184: return ($symb,$courseid,$domain,$name,$publicuser);
11185:
11186: }
11187:
1.36 albertel 11188: # ------------------------------------------------------------ Serves up a file
1.472 albertel 11189: # returns either the contents of the file or
11190: # -1 if the file doesn't exist
1.481 raeburn 11191: #
11192: # if the target is a file that was uploaded via DOCS,
11193: # a check will be made to see if a current copy exists on the local server,
11194: # if it does this will be served, otherwise a copy will be retrieved from
11195: # the home server for the course and stored in /home/httpd/html/userfiles on
11196: # the local server.
1.472 albertel 11197:
1.36 albertel 11198: sub getfile {
1.538 albertel 11199: my ($file) = @_;
1.609 banghart 11200: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 11201: &repcopy($file);
11202: return &readfile($file);
11203: }
11204:
11205: sub repcopy_userfile {
11206: my ($file)=@_;
1.1142 raeburn 11207: my $londocroot = $perlvar{'lonDocRoot'};
11208: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 11209: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 11210: my ($cdom,$cnum,$filename) =
1.811 albertel 11211: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 11212: my $uri="/uploaded/$cdom/$cnum/$filename";
11213: if (-e "$file") {
1.828 www 11214: # we already have a local copy, check it out
1.538 albertel 11215: my @fileinfo = stat($file);
1.828 www 11216: my $rtncode;
11217: my $info;
1.538 albertel 11218: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 11219: if ($lwpresp ne 'ok') {
1.828 www 11220: # there is no such file anymore, even though we had a local copy
1.482 albertel 11221: if ($rtncode eq '404') {
1.538 albertel 11222: unlink($file);
1.482 albertel 11223: }
11224: return -1;
11225: }
11226: if ($info < $fileinfo[9]) {
1.828 www 11227: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 11228: return 'ok';
1.828 www 11229: } else {
11230: # the file is outdated, get rid of it
11231: unlink($file);
1.482 albertel 11232: }
1.828 www 11233: }
11234: # one way or the other, at this point, we don't have the file
11235: # construct the correct path for the file
11236: my @parts = ($cdom,$cnum);
11237: if ($filename =~ m|^(.+)/[^/]+$|) {
11238: push @parts, split(/\//,$1);
11239: }
11240: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
11241: foreach my $part (@parts) {
11242: $path .= '/'.$part;
11243: if (!-e $path) {
11244: mkdir($path,0770);
1.482 albertel 11245: }
11246: }
1.828 www 11247: # now the path exists for sure
11248: # get a user agent
11249: my $ua=new LWP::UserAgent;
11250: my $transferfile=$file.'.in.transfer';
11251: # FIXME: this should flock
11252: if (-e $transferfile) { return 'ok'; }
11253: my $request;
11254: $uri=~s/^\///;
1.980 raeburn 11255: my $homeserver = &homeserver($cnum,$cdom);
11256: my $protocol = $protocol{$homeserver};
11257: $protocol = 'http' if ($protocol ne 'https');
11258: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 11259: my $response=$ua->request($request,$transferfile);
11260: # did it work?
11261: if ($response->is_error()) {
11262: unlink($transferfile);
11263: &logthis("Userfile repcopy failed for $uri");
11264: return -1;
11265: }
11266: # worked, rename the transfer file
11267: rename($transferfile,$file);
1.607 raeburn 11268: return 'ok';
1.481 raeburn 11269: }
11270:
1.517 albertel 11271: sub tokenwrapper {
11272: my $uri=shift;
1.980 raeburn 11273: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 11274: $uri=~s|^/||;
1.620 albertel 11275: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 11276: my $token=$1;
1.552 albertel 11277: my (undef,$udom,$uname,$file)=split('/',$uri,4);
11278: if ($udom && $uname && $file) {
11279: $file=~s|(\?\.*)*$||;
1.949 raeburn 11280: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 11281: my $homeserver = &homeserver($uname,$udom);
11282: my $protocol = $protocol{$homeserver};
11283: $protocol = 'http' if ($protocol ne 'https');
11284: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 11285: (($uri=~/\?/)?'&':'?').'token='.$token.
11286: '&tokenissued='.$perlvar{'lonHostID'};
11287: } else {
11288: return '/adm/notfound.html';
11289: }
11290: }
11291:
1.828 www 11292: # call with reqtype HEAD: get last modification time
11293: # call with reqtype GET: get the file contents
11294: # Do not call this with reqtype GET for large files! It loads everything into memory
11295: #
1.481 raeburn 11296: sub getuploaded {
11297: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
11298: $uri=~s/^\///;
1.980 raeburn 11299: my $homeserver = &homeserver($cnum,$cdom);
11300: my $protocol = $protocol{$homeserver};
11301: $protocol = 'http' if ($protocol ne 'https');
11302: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 11303: my $ua=new LWP::UserAgent;
11304: my $request=new HTTP::Request($reqtype,$uri);
11305: my $response=$ua->request($request);
11306: $$rtncode = $response->code;
1.482 albertel 11307: if (! $response->is_success()) {
11308: return 'failed';
11309: }
11310: if ($reqtype eq 'HEAD') {
1.486 www 11311: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 11312: } elsif ($reqtype eq 'GET') {
11313: $$info = $response->content;
1.472 albertel 11314: }
1.482 albertel 11315: return 'ok';
1.36 albertel 11316: }
11317:
1.481 raeburn 11318: sub readfile {
11319: my $file = shift;
11320: if ( (! -e $file ) || ($file eq '') ) { return -1; };
11321: my $fh;
11322: open($fh,"<$file");
11323: my $a='';
1.800 albertel 11324: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 11325: return $a;
11326: }
11327:
1.36 albertel 11328: sub filelocation {
1.590 banghart 11329: my ($dir,$file) = @_;
11330: my $location;
11331: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 11332:
11333: if ($file =~ m-^/adm/-) {
11334: $file=~s-^/adm/wrapper/-/-;
11335: $file=~s-^/adm/coursedocs/showdoc/-/-;
11336: }
1.882 albertel 11337:
1.1139 www 11338: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 11339: $location = $file;
1.609 banghart 11340: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 11341: my ($udom,$uname,$filename)=
1.811 albertel 11342: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 11343: my $home=&homeserver($uname,$udom);
11344: my $is_me=0;
11345: my @ids=¤t_machine_ids();
11346: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
11347: if ($is_me) {
1.1117 foxr 11348: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 11349: } else {
11350: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
11351: $udom.'/'.$uname.'/'.$filename;
11352: }
1.882 albertel 11353: } elsif ($file =~ m-^/adm/-) {
11354: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 11355: } else {
11356: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 11357: $file=~s:^/(res|priv)/:/:;
11358: my $space=$1;
1.590 banghart 11359: if ( !( $file =~ m:^/:) ) {
11360: $location = $dir. '/'.$file;
11361: } else {
1.1142 raeburn 11362: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 11363: }
1.59 albertel 11364: }
1.590 banghart 11365: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 11366: while ($location=~m{/\.\./}) {
11367: if ($location =~ m{/[^/]+/\.\./}) {
11368: $location=~ s{/[^/]+/\.\./}{/}g;
11369: } else {
11370: $location=~ s{/\.\./}{/}g;
11371: }
11372: } #remove dir/..
1.590 banghart 11373: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
11374: return $location;
1.46 www 11375: }
1.36 albertel 11376:
1.46 www 11377: sub hreflocation {
11378: my ($dir,$file)=@_;
1.980 raeburn 11379: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 11380: $file=filelocation($dir,$file);
1.700 albertel 11381: } elsif ($file=~m-^/adm/-) {
11382: $file=~s-^/adm/wrapper/-/-;
11383: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 11384: }
11385: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
11386: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
11387: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 11388: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
11389: {/uploaded/$1/$2/}x;
1.46 www 11390: }
1.913 albertel 11391: if ($file=~ m{^/userfiles/}) {
11392: $file =~ s{^/userfiles/}{/uploaded/};
11393: }
1.462 albertel 11394: return $file;
1.465 albertel 11395: }
11396:
1.1139 www 11397:
11398:
11399:
11400:
1.465 albertel 11401: sub current_machine_domains {
1.853 albertel 11402: return &machine_domains(&hostname($perlvar{'lonHostID'}));
11403: }
11404:
11405: sub machine_domains {
11406: my ($hostname) = @_;
1.465 albertel 11407: my @domains;
1.838 albertel 11408: my %hostname = &all_hostnames();
1.465 albertel 11409: while( my($id, $name) = each(%hostname)) {
1.467 matthew 11410: # &logthis("-$id-$name-$hostname-");
1.465 albertel 11411: if ($hostname eq $name) {
1.844 albertel 11412: push(@domains,&host_domain($id));
1.465 albertel 11413: }
11414: }
11415: return @domains;
11416: }
11417:
11418: sub current_machine_ids {
1.853 albertel 11419: return &machine_ids(&hostname($perlvar{'lonHostID'}));
11420: }
11421:
11422: sub machine_ids {
11423: my ($hostname) = @_;
11424: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 11425: my @ids;
1.888 albertel 11426: my %name_to_host = &all_names();
1.889 albertel 11427: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
11428: return @{ $name_to_host{$hostname} };
11429: }
11430: return;
1.31 www 11431: }
11432:
1.824 raeburn 11433: sub additional_machine_domains {
11434: my @domains;
11435: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
11436: while( my $line = <$fh>) {
11437: $line =~ s/\s//g;
11438: push(@domains,$line);
11439: }
11440: return @domains;
11441: }
11442:
11443: sub default_login_domain {
11444: my $domain = $perlvar{'lonDefDomain'};
11445: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
11446: foreach my $posdom (¤t_machine_domains(),
11447: &additional_machine_domains()) {
11448: if (lc($posdom) eq lc($testdomain)) {
11449: $domain=$posdom;
11450: last;
11451: }
11452: }
11453: return $domain;
11454: }
11455:
1.31 www 11456: # ------------------------------------------------------------- Declutters URLs
11457:
11458: sub declutter {
11459: my $thisfn=shift;
1.569 albertel 11460: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 11461: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 11462: $thisfn=~s/^\///;
1.697 albertel 11463: $thisfn=~s|^adm/wrapper/||;
11464: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 11465: $thisfn=~s/^res\///;
1.1172 bisitz 11466: $thisfn=~s/^priv\///;
1.1032 raeburn 11467: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
11468: $thisfn=~s/\?.+$//;
11469: }
1.268 www 11470: return $thisfn;
11471: }
11472:
11473: # ------------------------------------------------------------- Clutter up URLs
11474:
11475: sub clutter {
11476: my $thisfn='/'.&declutter(shift);
1.887 albertel 11477: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 11478: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 11479: $thisfn='/res'.$thisfn;
11480: }
1.1031 raeburn 11481: if ($thisfn !~m|^/adm|) {
11482: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 11483: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 11484: } else {
11485: my ($ext) = ($thisfn =~ /\.(\w+)$/);
11486: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 11487: if ($embstyle eq 'ssi'
11488: || ($embstyle eq 'hdn')
11489: || ($embstyle eq 'rat')
11490: || ($embstyle eq 'prv')
11491: || ($embstyle eq 'ign')) {
11492: #do nothing with these
11493: } elsif (($embstyle eq 'img')
1.695 albertel 11494: || ($embstyle eq 'emb')
11495: || ($embstyle eq 'wrp')) {
11496: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 11497: } elsif ($embstyle eq 'unk'
11498: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 11499: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 11500: } else {
1.718 www 11501: # &logthis("Got a blank emb style");
1.695 albertel 11502: }
1.694 albertel 11503: }
11504: }
1.31 www 11505: return $thisfn;
1.12 www 11506: }
11507:
1.787 albertel 11508: sub clutter_with_no_wrapper {
11509: my $uri = &clutter(shift);
11510: if ($uri =~ m-^/adm/-) {
11511: $uri =~ s-^/adm/wrapper/-/-;
11512: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
11513: }
11514: return $uri;
11515: }
11516:
1.557 albertel 11517: sub freeze_escape {
11518: my ($value)=@_;
11519: if (ref($value)) {
11520: $value=&nfreeze($value);
11521: return '__FROZEN__'.&escape($value);
11522: }
11523: return &escape($value);
11524: }
11525:
1.11 www 11526:
1.557 albertel 11527: sub thaw_unescape {
11528: my ($value)=@_;
11529: if ($value =~ /^__FROZEN__/) {
11530: substr($value,0,10,undef);
11531: $value=&unescape($value);
11532: return &thaw($value);
11533: }
11534: return &unescape($value);
11535: }
11536:
1.436 albertel 11537: sub correct_line_ends {
11538: my ($result)=@_;
11539: $$result =~s/\r\n/\n/mg;
11540: $$result =~s/\r/\n/mg;
1.415 albertel 11541: }
1.1 albertel 11542: # ================================================================ Main Program
11543:
1.184 www 11544: sub goodbye {
1.204 albertel 11545: &logthis("Starting Shut down");
1.443 albertel 11546: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 11547: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 11548: #converted
1.599 albertel 11549: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 11550: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
11551: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
11552: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 11553: #1.1 only
1.870 albertel 11554: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
11555: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
11556: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
11557: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
11558: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 11559: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
11560: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 11561: &flushcourselogs();
11562: &logthis("Shutting down");
11563: }
11564:
1.852 albertel 11565: sub get_dns {
1.1210 raeburn 11566: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 11567: if (!$ignore_cache) {
11568: my ($content,$cached)=
11569: &Apache::lonnet::is_cached_new('dns',$url);
11570: if ($cached) {
1.1210 raeburn 11571: &$func($content,$hashref);
1.869 albertel 11572: return;
11573: }
11574: }
11575:
11576: my %alldns;
1.852 albertel 11577: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11578: foreach my $dns (<$config>) {
11579: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 11580: my $line = $1;
11581: my ($host,$protocol) = split(/:/,$line);
11582: if ($protocol ne 'https') {
11583: $protocol = 'http';
11584: }
11585: $alldns{$host} = $protocol;
1.869 albertel 11586: }
11587: while (%alldns) {
11588: my ($dns) = keys(%alldns);
1.852 albertel 11589: my $ua=new LWP::UserAgent;
1.1134 raeburn 11590: $ua->timeout(30);
1.979 raeburn 11591: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 11592: my $response=$ua->request($request);
1.979 raeburn 11593: delete($alldns{$dns});
1.852 albertel 11594: next if ($response->is_error());
11595: my @content = split("\n",$response->content);
1.1210 raeburn 11596: unless ($nocache) {
11597: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
11598: }
11599: &$func(\@content,$hashref);
1.869 albertel 11600: return;
1.852 albertel 11601: }
11602: close($config);
1.871 albertel 11603: my $which = (split('/',$url))[3];
11604: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
11605: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 11606: my @content = <$config>;
1.1210 raeburn 11607: &$func(\@content,$hashref);
11608: return;
11609: }
11610:
11611: # ------------------------------------------------------Get DNS checksums file
1.1211 raeburn 11612: sub parse_dns_checksums_tab {
1.1210 raeburn 11613: my ($lines,$hashref) = @_;
11614: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
11615: my $loncaparev = &get_server_loncaparev($machine_dom);
11616: my ($release,$timestamp) = split(/\-/,$loncaparev);
11617: my (%chksum,%revnum);
11618: if (ref($lines) eq 'ARRAY') {
11619: chomp(@{$lines});
11620: my $versions = shift(@{$lines});
11621: my %supported;
11622: if ($versions =~ /^VERSIONS\:([\w\.\,]+)$/) {
11623: my $releaseslist = $1;
11624: if ($releaseslist =~ /,/) {
11625: map { $supported{$_} = 1; } split(/,/,$releaseslist);
11626: } elsif ($releaseslist) {
11627: $supported{$releaseslist} = 1;
11628: }
11629: }
11630: if ($supported{$release}) {
11631: my $matchthis = 0;
11632: foreach my $line (@{$lines}) {
11633: if ($line =~ /^(\d[\w\.]+)$/) {
11634: if ($matchthis) {
11635: last;
11636: } elsif ($1 eq $release) {
11637: $matchthis = 1;
11638: }
11639: } elsif ($matchthis) {
11640: my ($file,$version,$shasum) = split(/,/,$line);
11641: $chksum{$file} = $shasum;
11642: $revnum{$file} = $version;
11643: }
11644: }
11645: if (ref($hashref) eq 'HASH') {
11646: %{$hashref} = (
11647: sums => \%chksum,
11648: versions => \%revnum,
11649: );
11650: }
11651: }
11652: }
1.869 albertel 11653: return;
1.852 albertel 11654: }
1.1210 raeburn 11655:
11656: sub fetch_dns_checksums {
11657: my %checksums;
1.1211 raeburn 11658: &get_dns('/adm/dns/checksums',\&parse_dns_checksums_tab,1,1,
11659: \%checksums);
1.1210 raeburn 11660: return \%checksums;
11661: }
11662:
1.327 albertel 11663: # ------------------------------------------------------------ Read domain file
11664: {
1.852 albertel 11665: my $loaded;
1.846 albertel 11666: my %domain;
11667:
1.852 albertel 11668: sub parse_domain_tab {
11669: my ($lines) = @_;
11670: foreach my $line (@$lines) {
11671: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 11672:
1.846 albertel 11673: chomp($line);
1.852 albertel 11674: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 11675: my %this_domain;
11676: foreach my $field ('description', 'auth_def', 'auth_arg_def',
11677: 'lang_def', 'city', 'longi', 'lati',
11678: 'primary') {
11679: $this_domain{$field} = shift(@elements);
11680: }
11681: $domain{$name} = \%this_domain;
1.852 albertel 11682: }
11683: }
1.864 albertel 11684:
11685: sub reset_domain_info {
11686: undef($loaded);
11687: undef(%domain);
11688: }
11689:
1.852 albertel 11690: sub load_domain_tab {
1.869 albertel 11691: my ($ignore_cache) = @_;
11692: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 11693: my $fh;
11694: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
11695: my @lines = <$fh>;
11696: &parse_domain_tab(\@lines);
1.448 albertel 11697: }
1.852 albertel 11698: close($fh);
11699: $loaded = 1;
1.327 albertel 11700: }
1.846 albertel 11701:
11702: sub domain {
1.852 albertel 11703: &load_domain_tab() if (!$loaded);
11704:
1.846 albertel 11705: my ($name,$what) = @_;
11706: return if ( !exists($domain{$name}) );
11707:
11708: if (!$what) {
11709: return $domain{$name}{'description'};
11710: }
11711: return $domain{$name}{$what};
11712: }
1.974 raeburn 11713:
11714: sub domain_info {
11715: &load_domain_tab() if (!$loaded);
11716: return %domain;
11717: }
11718:
1.327 albertel 11719: }
11720:
11721:
1.1 albertel 11722: # ------------------------------------------------------------- Read hosts file
11723: {
1.838 albertel 11724: my %hostname;
1.844 albertel 11725: my %hostdom;
1.845 albertel 11726: my %libserv;
1.852 albertel 11727: my $loaded;
1.888 albertel 11728: my %name_to_host;
1.1074 raeburn 11729: my %internetdom;
1.1107 raeburn 11730: my %LC_dns_serv;
1.852 albertel 11731:
11732: sub parse_hosts_tab {
11733: my ($file) = @_;
11734: foreach my $configline (@$file) {
11735: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 11736: chomp($configline);
11737: if ($configline =~ /^\^/) {
11738: if ($configline =~ /^\^([\w.\-]+)/) {
11739: $LC_dns_serv{$1} = 1;
11740: }
11741: next;
11742: }
1.1074 raeburn 11743: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 11744: $name=~s/\s//g;
11745: if ($id && $domain && $role && $name) {
11746: $hostname{$id}=$name;
1.888 albertel 11747: push(@{$name_to_host{$name}}, $id);
1.852 albertel 11748: $hostdom{$id}=$domain;
11749: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 11750: if (defined($protocol)) {
11751: if ($protocol eq 'https') {
11752: $protocol{$id} = $protocol;
11753: } else {
11754: $protocol{$id} = 'http';
11755: }
1.968 raeburn 11756: } else {
1.969 raeburn 11757: $protocol{$id} = 'http';
1.968 raeburn 11758: }
1.1074 raeburn 11759: if (defined($intdom)) {
11760: $internetdom{$id} = $intdom;
11761: }
1.852 albertel 11762: }
11763: }
11764: }
1.864 albertel 11765:
11766: sub reset_hosts_info {
1.897 albertel 11767: &purge_remembered();
1.864 albertel 11768: &reset_domain_info();
11769: &reset_hosts_ip_info();
1.892 albertel 11770: undef(%name_to_host);
1.864 albertel 11771: undef(%hostname);
11772: undef(%hostdom);
11773: undef(%libserv);
11774: undef($loaded);
11775: }
1.1 albertel 11776:
1.852 albertel 11777: sub load_hosts_tab {
1.869 albertel 11778: my ($ignore_cache) = @_;
11779: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 11780: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
11781: my @config = <$config>;
11782: &parse_hosts_tab(\@config);
11783: close($config);
11784: $loaded=1;
1.1 albertel 11785: }
1.852 albertel 11786:
1.838 albertel 11787: sub hostname {
1.852 albertel 11788: &load_hosts_tab() if (!$loaded);
11789:
1.838 albertel 11790: my ($lonid) = @_;
11791: return $hostname{$lonid};
11792: }
1.845 albertel 11793:
1.838 albertel 11794: sub all_hostnames {
1.852 albertel 11795: &load_hosts_tab() if (!$loaded);
11796:
1.838 albertel 11797: return %hostname;
11798: }
1.845 albertel 11799:
1.888 albertel 11800: sub all_names {
11801: &load_hosts_tab() if (!$loaded);
11802:
11803: return %name_to_host;
11804: }
11805:
1.974 raeburn 11806: sub all_host_domain {
11807: &load_hosts_tab() if (!$loaded);
11808: return %hostdom;
11809: }
11810:
1.845 albertel 11811: sub is_library {
1.852 albertel 11812: &load_hosts_tab() if (!$loaded);
11813:
1.845 albertel 11814: return exists($libserv{$_[0]});
11815: }
11816:
11817: sub all_library {
1.852 albertel 11818: &load_hosts_tab() if (!$loaded);
11819:
1.845 albertel 11820: return %libserv;
11821: }
11822:
1.1062 droeschl 11823: sub unique_library {
11824: #2x reverse removes all hostnames that appear more than once
11825: my %unique = reverse &all_library();
11826: return reverse %unique;
11827: }
11828:
1.841 albertel 11829: sub get_servers {
1.852 albertel 11830: &load_hosts_tab() if (!$loaded);
11831:
1.841 albertel 11832: my ($domain,$type) = @_;
11833: my %possible_hosts = ($type eq 'library') ? %libserv
11834: : %hostname;
11835: my %result;
1.842 albertel 11836: if (ref($domain) eq 'ARRAY') {
11837: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 11838: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 11839: $result{$host} = $hostname;
11840: }
11841: }
11842: } else {
11843: while ( my ($host,$hostname) = each(%possible_hosts)) {
11844: if ($hostdom{$host} eq $domain) {
11845: $result{$host} = $hostname;
11846: }
1.841 albertel 11847: }
11848: }
11849: return %result;
11850: }
1.845 albertel 11851:
1.1062 droeschl 11852: sub get_unique_servers {
11853: my %unique = reverse &get_servers(@_);
11854: return reverse %unique;
11855: }
11856:
1.844 albertel 11857: sub host_domain {
1.852 albertel 11858: &load_hosts_tab() if (!$loaded);
11859:
1.844 albertel 11860: my ($lonid) = @_;
11861: return $hostdom{$lonid};
11862: }
11863:
1.841 albertel 11864: sub all_domains {
1.852 albertel 11865: &load_hosts_tab() if (!$loaded);
11866:
1.841 albertel 11867: my %seen;
11868: my @uniq = grep(!$seen{$_}++, values(%hostdom));
11869: return @uniq;
11870: }
1.1074 raeburn 11871:
11872: sub internet_dom {
11873: &load_hosts_tab() if (!$loaded);
11874:
11875: my ($lonid) = @_;
11876: return $internetdom{$lonid};
11877: }
1.1107 raeburn 11878:
11879: sub is_LC_dns {
11880: &load_hosts_tab() if (!$loaded);
11881:
11882: my ($hostname) = @_;
11883: return exists($LC_dns_serv{$hostname});
11884: }
11885:
1.1 albertel 11886: }
11887:
1.847 albertel 11888: {
11889: my %iphost;
1.856 albertel 11890: my %name_to_ip;
11891: my %lonid_to_ip;
1.869 albertel 11892:
1.847 albertel 11893: sub get_hosts_from_ip {
11894: my ($ip) = @_;
11895: my %iphosts = &get_iphost();
11896: if (ref($iphosts{$ip})) {
11897: return @{$iphosts{$ip}};
11898: }
11899: return;
1.839 albertel 11900: }
1.864 albertel 11901:
11902: sub reset_hosts_ip_info {
11903: undef(%iphost);
11904: undef(%name_to_ip);
11905: undef(%lonid_to_ip);
11906: }
1.856 albertel 11907:
11908: sub get_host_ip {
11909: my ($lonid) = @_;
11910: if (exists($lonid_to_ip{$lonid})) {
11911: return $lonid_to_ip{$lonid};
11912: }
11913: my $name=&hostname($lonid);
11914: my $ip = gethostbyname($name);
11915: return if (!$ip || length($ip) ne 4);
11916: $ip=inet_ntoa($ip);
11917: $name_to_ip{$name} = $ip;
11918: $lonid_to_ip{$lonid} = $ip;
11919: return $ip;
11920: }
1.847 albertel 11921:
11922: sub get_iphost {
1.869 albertel 11923: my ($ignore_cache) = @_;
1.894 albertel 11924:
1.869 albertel 11925: if (!$ignore_cache) {
11926: if (%iphost) {
11927: return %iphost;
11928: }
11929: my ($ip_info,$cached)=
11930: &Apache::lonnet::is_cached_new('iphost','iphost');
11931: if ($cached) {
11932: %iphost = %{$ip_info->[0]};
11933: %name_to_ip = %{$ip_info->[1]};
11934: %lonid_to_ip = %{$ip_info->[2]};
11935: return %iphost;
11936: }
11937: }
1.894 albertel 11938:
11939: # get yesterday's info for fallback
11940: my %old_name_to_ip;
11941: my ($ip_info,$cached)=
11942: &Apache::lonnet::is_cached_new('iphost','iphost');
11943: if ($cached) {
11944: %old_name_to_ip = %{$ip_info->[1]};
11945: }
11946:
1.888 albertel 11947: my %name_to_host = &all_names();
11948: foreach my $name (keys(%name_to_host)) {
1.847 albertel 11949: my $ip;
11950: if (!exists($name_to_ip{$name})) {
11951: $ip = gethostbyname($name);
11952: if (!$ip || length($ip) ne 4) {
1.894 albertel 11953: if (defined($old_name_to_ip{$name})) {
11954: $ip = $old_name_to_ip{$name};
11955: &logthis("Can't find $name defaulting to old $ip");
11956: } else {
11957: &logthis("Name $name no IP found");
11958: next;
11959: }
11960: } else {
11961: $ip=inet_ntoa($ip);
1.847 albertel 11962: }
11963: $name_to_ip{$name} = $ip;
11964: } else {
11965: $ip = $name_to_ip{$name};
1.653 albertel 11966: }
1.888 albertel 11967: foreach my $id (@{ $name_to_host{$name} }) {
11968: $lonid_to_ip{$id} = $ip;
11969: }
11970: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 11971: }
1.869 albertel 11972: &Apache::lonnet::do_cache_new('iphost','iphost',
11973: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 11974: 48*60*60);
1.869 albertel 11975:
1.847 albertel 11976: return %iphost;
1.598 albertel 11977: }
11978:
1.992 raeburn 11979: #
11980: # Given a DNS returns the loncapa host name for that DNS
11981: #
11982: sub host_from_dns {
11983: my ($dns) = @_;
11984: my @hosts;
11985: my $ip;
11986:
1.993 raeburn 11987: if (exists($name_to_ip{$dns})) {
1.992 raeburn 11988: $ip = $name_to_ip{$dns};
11989: }
11990: if (!$ip) {
11991: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
11992: if (length($ip) == 4) {
11993: $ip = &IO::Socket::inet_ntoa($ip);
11994: }
11995: }
11996: if ($ip) {
11997: @hosts = get_hosts_from_ip($ip);
11998: return $hosts[0];
11999: }
12000: return undef;
1.986 foxr 12001: }
1.992 raeburn 12002:
1.1074 raeburn 12003: sub get_internet_names {
12004: my ($lonid) = @_;
12005: return if ($lonid eq '');
12006: my ($idnref,$cached)=
12007: &Apache::lonnet::is_cached_new('internetnames',$lonid);
12008: if ($cached) {
12009: return $idnref;
12010: }
12011: my $ip = &get_host_ip($lonid);
12012: my @hosts = &get_hosts_from_ip($ip);
12013: my %iphost = &get_iphost();
12014: my (@idns,%seen);
12015: foreach my $id (@hosts) {
12016: my $dom = &host_domain($id);
12017: my $prim_id = &domain($dom,'primary');
12018: my $prim_ip = &get_host_ip($prim_id);
12019: next if ($seen{$prim_ip});
12020: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
12021: foreach my $id (@{$iphost{$prim_ip}}) {
12022: my $intdom = &internet_dom($id);
12023: unless (grep(/^\Q$intdom\E$/,@idns)) {
12024: push(@idns,$intdom);
12025: }
12026: }
12027: }
12028: $seen{$prim_ip} = 1;
12029: }
12030: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
12031: }
12032:
1.986 foxr 12033: }
12034:
1.1079 raeburn 12035: sub all_loncaparevs {
12036: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
12037: }
12038:
1.862 albertel 12039: BEGIN {
12040:
12041: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
12042: unless ($readit) {
12043: {
12044: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
12045: %perlvar = (%perlvar,%{$configvars});
12046: }
12047:
12048:
1.1 albertel 12049: # ------------------------------------------------------ Read spare server file
12050: {
1.448 albertel 12051: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 12052:
12053: while (my $configline=<$config>) {
12054: chomp($configline);
1.284 matthew 12055: if ($configline) {
1.784 albertel 12056: my ($host,$type) = split(':',$configline,2);
1.785 albertel 12057: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 12058: push(@{ $spareid{$type} }, $host);
1.1 albertel 12059: }
12060: }
1.448 albertel 12061: close($config);
1.1 albertel 12062: }
1.11 www 12063: # ------------------------------------------------------------ Read permissions
12064: {
1.448 albertel 12065: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 12066:
12067: while (my $configline=<$config>) {
1.448 albertel 12068: chomp($configline);
12069: if ($configline) {
12070: my ($role,$perm)=split(/ /,$configline);
12071: if ($perm ne '') { $pr{$role}=$perm; }
12072: }
1.11 www 12073: }
1.448 albertel 12074: close($config);
1.11 www 12075: }
12076:
12077: # -------------------------------------------- Read plain texts for permissions
12078: {
1.448 albertel 12079: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 12080:
12081: while (my $configline=<$config>) {
1.448 albertel 12082: chomp($configline);
12083: if ($configline) {
1.742 raeburn 12084: my ($short,@plain)=split(/:/,$configline);
12085: %{$prp{$short}} = ();
12086: if (@plain > 0) {
12087: $prp{$short}{'std'} = $plain[0];
12088: for (my $i=1; $i<@plain; $i++) {
12089: $prp{$short}{'alt'.$i} = $plain[$i];
12090: }
12091: }
1.448 albertel 12092: }
1.135 www 12093: }
1.448 albertel 12094: close($config);
1.135 www 12095: }
12096:
12097: # ---------------------------------------------------------- Read package table
12098: {
1.448 albertel 12099: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 12100:
12101: while (my $configline=<$config>) {
1.483 albertel 12102: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 12103: chomp($configline);
12104: my ($short,$plain)=split(/:/,$configline);
12105: my ($pack,$name)=split(/\&/,$short);
12106: if ($plain ne '') {
12107: $packagetab{$pack.'&'.$name.'&name'}=$name;
12108: $packagetab{$short}=$plain;
12109: }
1.11 www 12110: }
1.448 albertel 12111: close($config);
1.329 matthew 12112: }
12113:
1.1073 raeburn 12114: # ---------------------------------------------------------- Read loncaparev table
12115: {
12116: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
12117: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
12118: while (my $configline=<$config>) {
12119: chomp($configline);
12120: my ($hostid,$loncaparev)=split(/:/,$configline);
12121: $loncaparevs{$hostid}=$loncaparev;
12122: }
12123: close($config);
12124: }
12125: }
12126: }
12127:
1.1074 raeburn 12128: # ---------------------------------------------------------- Read serverhostID table
12129: {
12130: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
12131: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
12132: while (my $configline=<$config>) {
12133: chomp($configline);
12134: my ($name,$id)=split(/:/,$configline);
12135: $serverhomeIDs{$name}=$id;
12136: }
12137: close($config);
12138: }
12139: }
12140: }
12141:
1.1079 raeburn 12142: {
12143: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
12144: if (-e $file) {
12145: my $parser = HTML::LCParser->new($file);
12146: while (my $token = $parser->get_token()) {
12147: if ($token->[0] eq 'S') {
12148: my $item = $token->[1];
12149: my $name = $token->[2]{'name'};
12150: my $value = $token->[2]{'value'};
12151: if ($item ne '' && $name ne '' && $value ne '') {
12152: my $release = $parser->get_text();
12153: $release =~ s/(^\s*|\s*$ )//gx;
12154: $needsrelease{$item.':'.$name.':'.$value} = $release;
12155: }
12156: }
12157: }
12158: }
1.1073 raeburn 12159: }
12160:
1.1138 raeburn 12161: # ---------------------------------------------------------- Read managers table
12162: {
12163: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
12164: if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
12165: while (my $configline=<$config>) {
12166: chomp($configline);
12167: next if ($configline =~ /^\#/);
12168: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
12169: $managerstab{$configline} = 1;
12170: }
12171: }
12172: close($config);
12173: }
12174: }
12175: }
12176:
1.329 matthew 12177: # ------------- set up temporary directory
12178: {
1.1117 foxr 12179: $tmpdir = LONCAPA::tempdir();
1.329 matthew 12180:
1.11 www 12181: }
12182:
1.794 albertel 12183: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
12184: 'compress_threshold'=> 20_000,
12185: });
1.185 www 12186:
1.281 www 12187: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 12188: $dumpcount=0;
1.958 www 12189: $locknum=0;
1.22 www 12190:
1.163 harris41 12191: &logtouch();
1.672 albertel 12192: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 12193: $readit=1;
1.564 albertel 12194: {
12195: use integer;
12196: my $test=(2**32)+1;
1.568 albertel 12197: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 12198: &logthis(" Detected 64bit platform ($_64bit)");
12199: }
1.195 www 12200: }
1.1 albertel 12201: }
1.179 www 12202:
1.1 albertel 12203: 1;
1.191 harris41 12204: __END__
12205:
1.243 albertel 12206: =pod
12207:
1.191 harris41 12208: =head1 NAME
12209:
1.243 albertel 12210: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 12211:
12212: =head1 SYNOPSIS
12213:
1.243 albertel 12214: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 12215:
12216: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
12217:
1.243 albertel 12218: Common parameters:
12219:
12220: =over 4
12221:
12222: =item *
12223:
12224: $uname : an internal username (if $cname expecting a course Id specifically)
12225:
12226: =item *
12227:
12228: $udom : a domain (if $cdom expecting a course's domain specifically)
12229:
12230: =item *
12231:
12232: $symb : a resource instance identifier
12233:
12234: =item *
12235:
12236: $namespace : the name of a .db file that contains the data needed or
12237: being set.
12238:
12239: =back
12240:
1.394 bowersj2 12241: =head1 OVERVIEW
1.191 harris41 12242:
1.394 bowersj2 12243: lonnet provides subroutines which interact with the
12244: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
12245: about classes, users, and resources.
1.243 albertel 12246:
12247: For many of these objects you can also use this to store data about
12248: them or modify them in various ways.
1.191 harris41 12249:
1.394 bowersj2 12250: =head2 Symbs
1.191 harris41 12251:
1.394 bowersj2 12252: To identify a specific instance of a resource, LON-CAPA uses symbols
12253: or "symbs"X<symb>. These identifiers are built from the URL of the
12254: map, the resource number of the resource in the map, and the URL of
12255: the resource itself. The latter is somewhat redundant, but might help
12256: if maps change.
12257:
12258: An example is
12259:
12260: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
12261:
12262: The respective map entry is
12263:
12264: <resource id="19" src="/res/msu/korte/tests/part12.problem"
12265: title="Problem 2">
12266: </resource>
12267:
12268: Symbs are used by the random number generator, as well as to store and
12269: restore data specific to a certain instance of for example a problem.
12270:
12271: =head2 Storing And Retrieving Data
12272:
12273: X<store()>X<cstore()>X<restore()>Three of the most important functions
12274: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
12275: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
12276: is is the non-critical message twin of cstore. These functions are for
12277: handlers to store a perl hash to a user's permanent data space in an
12278: easy manner, and to retrieve it again on another call. It is expected
12279: that a handler would use this once at the beginning to retrieve data,
12280: and then again once at the end to send only the new data back.
12281:
12282: The data is stored in the user's data directory on the user's
12283: homeserver under the ID of the course.
12284:
12285: The hash that is returned by restore will have all of the previous
12286: value for all of the elements of the hash.
12287:
12288: Example:
12289:
12290: #creating a hash
12291: my %hash;
12292: $hash{'foo'}='bar';
12293:
12294: #storing it
12295: &Apache::lonnet::cstore(\%hash);
12296:
12297: #changing a value
12298: $hash{'foo'}='notbar';
12299:
12300: #adding a new value
12301: $hash{'bar'}='foo';
12302: &Apache::lonnet::cstore(\%hash);
12303:
12304: #retrieving the hash
12305: my %history=&Apache::lonnet::restore();
12306:
12307: #print the hash
12308: foreach my $key (sort(keys(%history))) {
12309: print("\%history{$key} = $history{$key}");
12310: }
12311:
12312: Will print out:
1.191 harris41 12313:
1.394 bowersj2 12314: %history{1:foo} = bar
12315: %history{1:keys} = foo:timestamp
12316: %history{1:timestamp} = 990455579
12317: %history{2:bar} = foo
12318: %history{2:foo} = notbar
12319: %history{2:keys} = foo:bar:timestamp
12320: %history{2:timestamp} = 990455580
12321: %history{bar} = foo
12322: %history{foo} = notbar
12323: %history{timestamp} = 990455580
12324: %history{version} = 2
12325:
12326: Note that the special hash entries C<keys>, C<version> and
12327: C<timestamp> were added to the hash. C<version> will be equal to the
12328: total number of versions of the data that have been stored. The
12329: C<timestamp> attribute will be the UNIX time the hash was
12330: stored. C<keys> is available in every historical section to list which
12331: keys were added or changed at a specific historical revision of a
12332: hash.
12333:
12334: B<Warning>: do not store the hash that restore returns directly. This
12335: will cause a mess since it will restore the historical keys as if the
12336: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 12337:
1.394 bowersj2 12338: Calling convention:
1.191 harris41 12339:
1.394 bowersj2 12340: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
12341: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 12342:
1.394 bowersj2 12343: For more detailed information, see lonnet specific documentation.
1.191 harris41 12344:
1.394 bowersj2 12345: =head1 RETURN MESSAGES
1.191 harris41 12346:
1.394 bowersj2 12347: =over 4
1.191 harris41 12348:
1.394 bowersj2 12349: =item * B<con_lost>: unable to contact remote host
1.191 harris41 12350:
1.394 bowersj2 12351: =item * B<con_delayed>: unable to contact remote host, message will be delivered
12352: when the connection is brought back up
1.191 harris41 12353:
1.394 bowersj2 12354: =item * B<con_failed>: unable to contact remote host and unable to save message
12355: for later delivery
1.191 harris41 12356:
1.967 bisitz 12357: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 12358:
1.394 bowersj2 12359: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 12360: that was requested
1.191 harris41 12361:
1.243 albertel 12362: =back
1.191 harris41 12363:
1.243 albertel 12364: =head1 PUBLIC SUBROUTINES
1.191 harris41 12365:
1.243 albertel 12366: =head2 Session Environment Functions
1.191 harris41 12367:
1.243 albertel 12368: =over 4
1.191 harris41 12369:
1.394 bowersj2 12370: =item *
12371: X<appenv()>
1.949 raeburn 12372: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 12373: the user envirnoment file, and will be restored for each access this
1.620 albertel 12374: user makes during this session, also modifies the %env for the current
1.949 raeburn 12375: process. Optional rolesarrayref - if defined contains a reference to an array
12376: of roles which are exempt from the restriction on modifying user.role entries
12377: in the user's environment.db and in %env.
1.191 harris41 12378:
12379: =item *
1.394 bowersj2 12380: X<delenv()>
1.987 raeburn 12381: B<delenv($delthis,$regexp)>: removes all items from the session
12382: environment file that begin with $delthis. If the
12383: optional second arg - $regexp - is true, $delthis is treated as a
12384: regular expression, otherwise \Q$delthis\E is used.
12385: The values are also deleted from the current processes %env.
1.191 harris41 12386:
1.795 albertel 12387: =item * get_env_multiple($name)
12388:
12389: gets $name from the %env hash, it seemlessly handles the cases where multiple
12390: values may be defined and end up as an array ref.
12391:
12392: returns an array of values
12393:
1.243 albertel 12394: =back
12395:
12396: =head2 User Information
1.191 harris41 12397:
1.243 albertel 12398: =over 4
1.191 harris41 12399:
12400: =item *
1.394 bowersj2 12401: X<queryauthenticate()>
12402: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 12403: authentication scheme
12404:
12405: =item *
1.394 bowersj2 12406: X<authenticate()>
1.1073 raeburn 12407: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 12408: authenticate user from domain's lib servers (first use the current
12409: one). C<$upass> should be the users password.
1.1073 raeburn 12410: $checkdefauth is optional (value is 1 if a check should be made to
12411: authenticate user using default authentication method, and allow
12412: account creation if username does not have account in the domain).
12413: $clientcancheckhost is optional (value is 1 if checking whether the
12414: server can host will occur on the client side in lonauth.pm).
1.191 harris41 12415:
12416: =item *
1.394 bowersj2 12417: X<homeserver()>
12418: B<homeserver($uname,$udom)>: find the server which has
12419: the user's directory and files (there must be only one), this caches
12420: the answer, and also caches if there is a borken connection.
1.191 harris41 12421:
12422: =item *
1.394 bowersj2 12423: X<idget()>
12424: B<idget($udom,@ids)>: find the usernames behind a list of IDs
12425: (IDs are a unique resource in a domain, there must be only 1 ID per
12426: username, and only 1 username per ID in a specific domain) (returns
12427: hash: id=>name,id=>name)
1.191 harris41 12428:
12429: =item *
1.394 bowersj2 12430: X<idrget()>
12431: B<idrget($udom,@unames)>: find the IDs behind a list of
12432: usernames (returns hash: name=>id,name=>id)
1.191 harris41 12433:
12434: =item *
1.394 bowersj2 12435: X<idput()>
12436: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 12437:
12438: =item *
1.394 bowersj2 12439: X<rolesinit()>
1.1169 droeschl 12440: B<rolesinit($udom,$username)>: get user privileges.
12441: returns user role, first access and timer interval hashes
1.243 albertel 12442:
12443: =item *
1.1171 droeschl 12444: X<privileged()>
12445: B<privileged($username,$domain)>: returns a true if user has a
12446: privileged and active role (i.e. su or dc), false otherwise.
12447:
12448: =item *
1.551 albertel 12449: X<getsection()>
12450: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 12451: course $cname, return section name/number or '' for "not in course"
12452: and '-1' for "no section"
12453:
12454: =item *
1.394 bowersj2 12455: X<userenvironment()>
12456: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 12457: passed in @what from the requested user's environment, returns a hash
12458:
1.858 raeburn 12459: =item *
12460: X<userlog_query()>
1.859 albertel 12461: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
12462: activity.log file. %filters defines filters applied when parsing the
12463: log file. These can be start or end timestamps, or the type of action
12464: - log to look for Login or Logout events, check for Checkin or
12465: Checkout, role for role selection. The response is in the form
12466: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
12467: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 12468:
1.243 albertel 12469: =back
12470:
12471: =head2 User Roles
12472:
12473: =over 4
12474:
12475: =item *
12476:
1.810 raeburn 12477: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 12478: F: full access
12479: U,I,K: authentication modes (cxx only)
12480: '': forbidden
12481: 1: user needs to choose course
12482: 2: browse allowed
1.766 albertel 12483: A: passphrase authentication needed
1.243 albertel 12484:
12485: =item *
12486:
1.1192 raeburn 12487: constructaccess($url,$setpriv) : check for access to construction space URL
12488:
12489: See if the owner domain and name in the URL match those in the
12490: expected environment. If so, return three element list
12491: ($ownername,$ownerdomain,$ownerhome).
12492:
12493: Otherwise return the null string.
12494:
12495: If second argument 'setpriv' is true, it assigns the privileges,
12496: and returns the same three element list, unless the owner has
12497: blocked "ad hoc" Domain Coordinator access to the Author Space,
12498: in which case the null string is returned.
12499:
12500: =item *
12501:
1.243 albertel 12502: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
12503: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
12504: and course level
12505:
12506: =item *
12507:
1.988 raeburn 12508: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
12509: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 12510: $type is Course (default) or Community.
1.988 raeburn 12511: If $forcedefault evaluates to true, text returned will be default
12512: text for $type. Otherwise, if this is a course, the text returned
12513: will be a custom name for the role (if defined in the course's
12514: environment). If no custom name is defined the default is returned.
12515:
1.832 raeburn 12516: =item *
12517:
1.935 raeburn 12518: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 12519: All arguments are optional. Returns a hash of a roles, either for
12520: co-author/assistant author roles for a user's Construction Space
1.906 albertel 12521: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 12522: In the hash, keys are set to colon-separated $uname,$udom,$role, and
12523: (optionally) if $withsec is true, a fourth colon-separated item - $section.
12524: For each key, value is set to colon-separated start and end times for
12525: the role. If no username and domain are specified, will default to
1.934 raeburn 12526: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 12527: of role statuses (active, future or previous), roles
12528: (e.g., cc,in, st etc.) and domains of the roles which can be used
12529: to restrict the list of roles reported. If no array ref is
12530: provided for types, will default to return only active roles.
1.834 albertel 12531:
1.1195 raeburn 12532: =item *
12533:
12534: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
1.1196 raeburn 12535: user: $uname:$udom has a role in the course: $cdom_$cnum.
12536:
12537: Additional optional arguments are: $type (if role checking is to be restricted
12538: to certain user status types -- previous (expired roles), active (currently
1.1195 raeburn 12539: available roles) or future (roles available in the future), and
12540: $hideprivileged -- if true will not report course roles for users who
12541: have active Domain Coordinator or Super User roles.
12542:
1.243 albertel 12543: =back
12544:
12545: =head2 User Modification
12546:
12547: =over 4
12548:
12549: =item *
12550:
1.957 raeburn 12551: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 12552: user for the level given by URL. Optional start and end dates (leave empty
12553: string or zero for "no date")
1.191 harris41 12554:
12555: =item *
12556:
1.243 albertel 12557: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
12558: change a users, password, possible return values are: ok,
12559: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
12560: refused
1.191 harris41 12561:
12562: =item *
12563:
1.243 albertel 12564: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 12565:
12566: =item *
12567:
1.1058 raeburn 12568: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
12569: $forceid,$desiredhome,$email,$inststatus,$candelete) :
12570:
12571: will update user information (firstname,middlename,lastname,generation,
12572: permanentemail), and if forceid is true, student/employee ID also.
12573: A user's institutional affiliation(s) can also be updated.
12574: User information fields will not be overwritten with empty entries
12575: unless the field is included in the $candelete array reference.
12576: This array is included when a single user is modified via "Manage Users",
12577: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 12578:
12579: =item *
12580:
1.286 matthew 12581: modifystudent
12582:
1.957 raeburn 12583: modify a student's enrollment and identification information.
1.286 matthew 12584: The course id is resolved based on the current users environment.
12585: This means the envoking user must be a course coordinator or otherwise
12586: associated with a course.
12587:
1.297 matthew 12588: This call is essentially a wrapper for lonnet::modifyuser and
12589: lonnet::modify_student_enrollment
1.286 matthew 12590:
12591: Inputs:
12592:
12593: =over 4
12594:
1.957 raeburn 12595: =item B<$udom> Student's loncapa domain
1.286 matthew 12596:
1.957 raeburn 12597: =item B<$uname> Student's loncapa login name
1.286 matthew 12598:
1.964 bisitz 12599: =item B<$uid> Student/Employee ID
1.286 matthew 12600:
1.957 raeburn 12601: =item B<$umode> Student's authentication mode
1.286 matthew 12602:
1.957 raeburn 12603: =item B<$upass> Student's password
1.286 matthew 12604:
1.957 raeburn 12605: =item B<$first> Student's first name
1.286 matthew 12606:
1.957 raeburn 12607: =item B<$middle> Student's middle name
1.286 matthew 12608:
1.957 raeburn 12609: =item B<$last> Student's last name
1.286 matthew 12610:
1.957 raeburn 12611: =item B<$gene> Student's generation
1.286 matthew 12612:
1.957 raeburn 12613: =item B<$usec> Student's section in course
1.286 matthew 12614:
12615: =item B<$end> Unix time of the roles expiration
12616:
12617: =item B<$start> Unix time of the roles start date
12618:
12619: =item B<$forceid> If defined, allow $uid to be changed
12620:
12621: =item B<$desiredhome> server to use as home server for student
12622:
1.957 raeburn 12623: =item B<$email> Student's permanent e-mail address
12624:
12625: =item B<$type> Type of enrollment (auto or manual)
12626:
1.963 raeburn 12627: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
12628:
12629: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 12630:
1.963 raeburn 12631: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 12632:
1.963 raeburn 12633: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 12634:
1.963 raeburn 12635: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 12636:
1.286 matthew 12637: =back
1.297 matthew 12638:
12639: =item *
12640:
12641: modify_student_enrollment
12642:
12643: Change a students enrollment status in a class. The environment variable
12644: 'role.request.course' must be defined for this function to proceed.
12645:
12646: Inputs:
12647:
12648: =over 4
12649:
12650: =item $udom, students domain
12651:
12652: =item $uname, students name
12653:
12654: =item $uid, students user id
12655:
12656: =item $first, students first name
12657:
12658: =item $middle
12659:
12660: =item $last
12661:
12662: =item $gene
12663:
12664: =item $usec
12665:
12666: =item $end
12667:
12668: =item $start
12669:
1.957 raeburn 12670: =item $type
12671:
12672: =item $locktype
12673:
12674: =item $cid
12675:
12676: =item $selfenroll
12677:
12678: =item $context
12679:
1.297 matthew 12680: =back
12681:
1.191 harris41 12682:
12683: =item *
12684:
1.243 albertel 12685: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
12686: custom role; give a custom role to a user for the level given by URL. Specify
12687: name and domain of role author, and role name
1.191 harris41 12688:
12689: =item *
12690:
1.243 albertel 12691: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 12692:
12693: =item *
12694:
1.243 albertel 12695: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
12696:
12697: =back
12698:
12699: =head2 Course Infomation
12700:
12701: =over 4
1.191 harris41 12702:
12703: =item *
12704:
1.1118 foxr 12705: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 12706: specified course id, including all environment settings for the
12707: course, the description of the course will be in the hash under the
12708: key 'description'
1.191 harris41 12709:
1.1118 foxr 12710: $options is an optional parameter that if supplied is a hash reference that controls
12711: what how this function works. It has the following key/values:
12712:
12713: =over 4
12714:
12715: =item freshen_cache
12716:
12717: If defined, and the environment cache for the course is valid, it is
12718: returned in the returned hash.
12719:
12720: =item one_time
12721:
12722: If defined, the last cache time is set to _now_
12723:
12724: =item user
12725:
12726: If defined, the supplied username is used instead of the current user.
12727:
12728:
12729: =back
12730:
1.191 harris41 12731: =item *
12732:
1.624 albertel 12733: resdata($name,$domain,$type,@which) : request for current parameter
12734: setting for a specific $type, where $type is either 'course' or 'user',
12735: @what should be a list of parameters to ask about. This routine caches
12736: answers for 5 minutes.
1.243 albertel 12737:
1.877 foxr 12738: =item *
12739:
12740: get_courseresdata($courseid, $domain) : dump the entire course resource
12741: data base, returning a hash that is keyed by the resource name and has
12742: values that are the resource value. I believe that the timestamps and
12743: versions are also returned.
12744:
1.243 albertel 12745: =back
12746:
12747: =head2 Course Modification
12748:
12749: =over 4
1.191 harris41 12750:
12751: =item *
12752:
1.243 albertel 12753: writecoursepref($courseid,%prefs) : write preferences (environment
12754: database) for a course
1.191 harris41 12755:
12756: =item *
12757:
1.1011 raeburn 12758: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
12759:
12760: =item *
12761:
1.1038 raeburn 12762: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 12763:
1.1167 droeschl 12764: =item *
12765:
12766: is_course($courseid), is_course($cdom, $cnum)
12767:
12768: Accepts either a combined $courseid (in the form of domain_courseid) or the
12769: two component version $cdom, $cnum. It checks if the specified course exists.
12770:
12771: Returns:
12772: undef if the course doesn't exist, otherwise
12773: in scalar context the combined courseid.
12774: in list context the two components of the course identifier, domain and
12775: courseid.
12776:
1.243 albertel 12777: =back
12778:
12779: =head2 Resource Subroutines
12780:
12781: =over 4
1.191 harris41 12782:
12783: =item *
12784:
1.243 albertel 12785: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 12786:
12787: =item *
12788:
1.243 albertel 12789: repcopy($filename) : subscribes to the requested file, and attempts to
12790: replicate from the owning library server, Might return
1.607 raeburn 12791: 'unavailable', 'not_found', 'forbidden', 'ok', or
12792: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 12793: resource. Expects the local filesystem pathname
12794: (/home/httpd/html/res/....)
12795:
12796: =back
12797:
12798: =head2 Resource Information
12799:
12800: =over 4
1.191 harris41 12801:
12802: =item *
12803:
1.243 albertel 12804: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
12805: a vairety of different possible values, $varname should be a request
12806: string, and the other parameters can be used to specify who and what
12807: one is asking about.
12808:
12809: Possible values for $varname are environment.lastname (or other item
12810: from the envirnment hash), user.name (or someother aspect about the
12811: user), resource.0.maxtries (or some other part and parameter of a
12812: resource)
1.204 albertel 12813:
12814: =item *
12815:
1.243 albertel 12816: directcondval($number) : get current value of a condition; reads from a state
12817: string
1.204 albertel 12818:
12819: =item *
12820:
1.243 albertel 12821: condval($condidx) : value of condition index based on state
1.204 albertel 12822:
12823: =item *
12824:
1.243 albertel 12825: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
12826: resource's metadata, $what should be either a specific key, or either
12827: 'keys' (to get a list of possible keys) or 'packages' to get a list of
12828: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
12829:
12830: this function automatically caches all requests
1.191 harris41 12831:
12832: =item *
12833:
1.243 albertel 12834: metadata_query($query,$custom,$customshow) : make a metadata query against the
12835: network of library servers; returns file handle of where SQL and regex results
12836: will be stored for query
1.191 harris41 12837:
12838: =item *
12839:
1.243 albertel 12840: symbread($filename) : return symbolic list entry (filename argument optional);
12841: returns the data handle
1.191 harris41 12842:
12843: =item *
12844:
1.1190 raeburn 12845: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
12846: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 12847: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1190 raeburn 12848: on failure, user must be in a course, as it assumes the existence of
12849: the course initial hash, and uses $env('request.course.id'}. The third
12850: arg is an optional reference to a scalar. If this arg is passed in the
12851: call to symbverify, it will be set to 1 if the symb has been set to be
12852: encrypted; otherwise it will be null.
1.191 harris41 12853:
12854: =item *
12855:
1.243 albertel 12856: symbclean($symb) : removes versions numbers from a symb, returns the
12857: cleaned symb
1.191 harris41 12858:
12859: =item *
12860:
1.243 albertel 12861: is_on_map($uri) : checks if the $uri is somewhere on the current
12862: course map, user must be in a course for it to work.
1.191 harris41 12863:
12864: =item *
12865:
1.243 albertel 12866: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 12867:
12868: =item *
12869:
1.243 albertel 12870: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
12871: a random seed, all arguments are optional, if they aren't sent it uses the
12872: environment to derive them. Note: if symb isn't sent and it can't get one
12873: from &symbread it will use the current time as its return value
1.191 harris41 12874:
12875: =item *
12876:
1.243 albertel 12877: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
12878: unfakeable, receipt
1.191 harris41 12879:
12880: =item *
12881:
1.620 albertel 12882: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 12883:
12884: =item *
12885:
1.243 albertel 12886: countacc($url) : count the number of accesses to a given URL
1.191 harris41 12887:
12888: =item *
12889:
1.243 albertel 12890: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 12891:
12892: =item *
12893:
1.243 albertel 12894: checkin($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 $tcrsid)
1.191 harris41 12895:
12896: =item *
12897:
1.243 albertel 12898: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 12899:
12900: =item *
12901:
1.243 albertel 12902: devalidate($symb) : devalidate temporary spreadsheet calculations,
12903: forcing spreadsheet to reevaluate the resource scores next time.
12904:
1.1195 raeburn 12905: =item *
12906:
1.1196 raeburn 12907: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
12908: when viewing in course context.
1.1195 raeburn 12909:
1.1196 raeburn 12910: input: six args -- filename (decluttered), course number, course domain,
12911: url, symb (if registered) and group (if this is a
12912: group item -- e.g., bulletin board, group page etc.).
1.1195 raeburn 12913:
1.1196 raeburn 12914: output: array of five scalars --
1.1195 raeburn 12915: $cfile -- url for file editing if editable on current server
12916: $home -- homeserver of resource (i.e., for author if published,
12917: or course if uploaded.).
12918: $switchserver -- 1 if server switch will be needed.
1.1196 raeburn 12919: $forceedit -- 1 if icon/link should be to go to edit mode
12920: $forceview -- 1 if icon/link should be to go to view mode
1.1195 raeburn 12921:
12922: =item *
12923:
12924: is_course_upload($file,$cnum,$cdom)
12925:
12926: Used in course context to determine if current file was uploaded to
12927: the course (i.e., would be found in /userfiles/docs on the course's
12928: homeserver.
12929:
12930: input: 3 args -- filename (decluttered), course number and course domain.
12931: output: boolean -- 1 if file was uploaded.
12932:
1.243 albertel 12933: =back
12934:
12935: =head2 Storing/Retreiving Data
12936:
12937: =over 4
1.191 harris41 12938:
12939: =item *
12940:
1.243 albertel 12941: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
12942: for this url; hashref needs to be given and should be a \%hashname; the
12943: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 12944: be derived from the env
1.191 harris41 12945:
12946: =item *
12947:
1.243 albertel 12948: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
12949: uses critical subroutine
1.191 harris41 12950:
12951: =item *
12952:
1.243 albertel 12953: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
12954: all args are optional
1.191 harris41 12955:
12956: =item *
12957:
1.717 albertel 12958: dumpstore($namespace,$udom,$uname,$regexp,$range) :
12959: dumps the complete (or key matching regexp) namespace into a hash
12960: ($udom, $uname, $regexp, $range are optional) for a namespace that is
12961: normally &store()ed into
12962:
12963: $range should be either an integer '100' (give me the first 100
12964: matching records)
12965: or be two integers sperated by a - with no spaces
12966: '30-50' (give me the 30th through the 50th matching
12967: records)
12968:
12969:
12970: =item *
12971:
12972: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
12973: replaces a &store() version of data with a replacement set of data
12974: for a particular resource in a namespace passed in the $storehash hash
12975: reference
12976:
12977: =item *
12978:
1.243 albertel 12979: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
12980: works very similar to store/cstore, but all data is stored in a
12981: temporary location and can be reset using tmpreset, $storehash should
12982: be a hash reference, returns nothing on success
1.191 harris41 12983:
12984: =item *
12985:
1.243 albertel 12986: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
12987: similar to restore, but all data is stored in a temporary location and
12988: can be reset using tmpreset. Returns a hash of values on success,
12989: error string otherwise.
1.191 harris41 12990:
12991: =item *
12992:
1.243 albertel 12993: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
12994: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 12995:
12996: =item *
12997:
1.243 albertel 12998: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
12999: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 13000:
13001: =item *
13002:
1.243 albertel 13003: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
13004: namesp ($udom and $uname are optional)
1.191 harris41 13005:
13006: =item *
13007:
1.702 albertel 13008: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 13009: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 13010: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 13011:
1.702 albertel 13012: $range should be either an integer '100' (give me the first 100
13013: matching records)
13014: or be two integers sperated by a - with no spaces
13015: '30-50' (give me the 30th through the 50th matching
13016: records)
1.449 matthew 13017: =item *
13018:
13019: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
13020: $store can be a scalar, an array reference, or if the amount to be
13021: incremented is > 1, a hash reference.
13022:
13023: ($udom and $uname are optional)
1.191 harris41 13024:
13025: =item *
13026:
1.243 albertel 13027: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
13028: ($udom and $uname are optional)
1.191 harris41 13029:
13030: =item *
13031:
1.243 albertel 13032: cput($namespace,$storehash,$udom,$uname) : critical put
13033: ($udom and $uname are optional)
1.191 harris41 13034:
13035: =item *
13036:
1.748 albertel 13037: newput($namespace,$storehash,$udom,$uname) :
13038:
13039: Attempts to store the items in the $storehash, but only if they don't
13040: currently exist, if this succeeds you can be certain that you have
13041: successfully created a new key value pair in the $namespace db.
13042:
13043:
13044: Args:
13045: $namespace: name of database to store values to
13046: $storehash: hashref to store to the db
13047: $udom: (optional) domain of user containing the db
13048: $uname: (optional) name of user caontaining the db
13049:
13050: Returns:
13051: 'ok' -> succeeded in storing all keys of $storehash
13052: 'key_exists: <key>' -> failed to anything out of $storehash, as at
13053: least <key> already existed in the db (other
13054: requested keys may also already exist)
1.967 bisitz 13055: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 13056: 'con_lost' -> unable to contact request server
13057: 'refused' -> action was not allowed by remote machine
13058:
13059:
13060: =item *
13061:
1.243 albertel 13062: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
13063: reference filled in from namesp (encrypts the return communication)
13064: ($udom and $uname are optional)
1.191 harris41 13065:
13066: =item *
13067:
1.243 albertel 13068: log($udom,$name,$home,$message) : write to permanent log for user; use
13069: critical subroutine
13070:
1.806 raeburn 13071: =item *
13072:
1.860 raeburn 13073: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
13074: array reference filled in from namespace found in domain level on either
13075: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 13076:
13077: =item *
13078:
1.860 raeburn 13079: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
13080: domain level either on specified domain server ($uhome) or primary domain
13081: server ($udom and $uhome are optional)
1.806 raeburn 13082:
1.943 raeburn 13083: =item *
13084:
13085: get_domain_defaults($target_domain) : returns hash with defaults for
13086: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
13087: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
13088: or localauth), initial password or a kerberos realm, language (e.g., en-us).
13089: Values are retrieved from cache (if current), or from domain's configuration.db
13090: (if available), or lastly from values in lonTabs/dns_domain,tab,
13091: or lonTabs/domain.tab.
13092:
13093: %domdefaults = &get_auth_defaults($target_domain);
13094:
1.243 albertel 13095: =back
13096:
13097: =head2 Network Status Functions
13098:
13099: =over 4
1.191 harris41 13100:
13101: =item *
13102:
1.1137 raeburn 13103: dirlist() : return directory list based on URI (first arg).
13104:
13105: Inputs: 1 required, 5 optional.
13106:
13107: =over
13108:
13109: =item
13110: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
13111:
13112: =item
13113: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
13114:
13115: =item
13116: $username - username of user/course to be listed. Extracted from $uri if absent.
13117:
13118: =item
13119: $getpropath - boolean: 1 if prepend path using &propath().
13120:
13121: =item
13122: $getuserdir - boolean: 1 if prepend path for "userfiles".
13123:
13124: =item
13125: $alternateRoot - path to prepend in place of path from $uri.
13126:
13127: =back
13128:
13129: Returns: Array of up to two items.
13130:
13131: =over
13132:
13133: a reference to an array of files/subdirectories
13134:
13135: =over
13136:
13137: Each element in the array of files/subdirectories is a & separated list of
13138: item name and the result of running stat on the item. If dirlist was requested
13139: for a file instead of a directory, the item name will be ''. For a directory
13140: listing, if the item is a metadata file, the element will end &N&M
13141: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
13142: default copyright set (1).
13143:
13144: =back
13145:
13146: a scalar containing error condition (if encountered).
13147:
13148: =over
13149:
13150: =item
13151: no_host (no homeserver identified for $username:$domain).
13152:
13153: =item
13154: no_such_host (server contacted for listing not identified as valid host).
13155:
13156: =item
13157: con_lost (connection to remote server failed).
13158:
13159: =item
13160: refused (invalid $username:$domain received on lond side).
13161:
13162: =item
13163: no_such_dir (directory at specified path on lond side does not exist).
13164:
13165: =item
13166: empty (directory at specified path on lond side is empty).
13167:
13168: =over
13169:
13170: This is currently not encountered because the &ls3, &ls2,
13171: &ls (_handler) routines on the lond side do not filter out
13172: . and .. from a directory listing.
13173:
13174: =back
13175:
13176: =back
13177:
13178: =back
1.191 harris41 13179:
13180: =item *
13181:
1.243 albertel 13182: spareserver() : find server with least workload from spare.tab
13183:
1.986 foxr 13184:
13185: =item *
13186:
13187: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
13188: if there is no corresponding loncapa host.
13189:
1.243 albertel 13190: =back
13191:
1.986 foxr 13192:
1.243 albertel 13193: =head2 Apache Request
13194:
13195: =over 4
1.191 harris41 13196:
13197: =item *
13198:
1.243 albertel 13199: ssi($url,%hash) : server side include, does a complete request cycle on url to
13200: localhost, posts hash
13201:
13202: =back
13203:
13204: =head2 Data to String to Data
13205:
13206: =over 4
1.191 harris41 13207:
13208: =item *
13209:
1.243 albertel 13210: hash2str(%hash) : convert a hash into a string complete with escaping and '='
13211: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 13212:
13213: =item *
13214:
1.243 albertel 13215: hashref2str($hashref) : convert a hashref into a string complete with
13216: escaping and '=' and '&' separators, supports elements that are
13217: arrayrefs and hashrefs
1.191 harris41 13218:
13219: =item *
13220:
1.243 albertel 13221: arrayref2str($arrayref) : convert an arrayref into a string complete
13222: with escaping and '&' separators, supports elements that are arrayrefs
13223: and hashrefs
1.191 harris41 13224:
13225: =item *
13226:
1.243 albertel 13227: str2hash($string) : convert string to hash using unescaping and
13228: splitting on '=' and '&', supports elements that are arrayrefs and
13229: hashrefs
1.191 harris41 13230:
13231: =item *
13232:
1.243 albertel 13233: str2array($string) : convert string to hash using unescaping and
13234: splitting on '&', supports elements that are arrayrefs and hashrefs
13235:
13236: =back
13237:
13238: =head2 Logging Routines
13239:
13240:
13241: These routines allow one to make log messages in the lonnet.log and
13242: lonnet.perm logfiles.
1.191 harris41 13243:
1.1119 foxr 13244: =over 4
13245:
1.191 harris41 13246: =item *
13247:
1.243 albertel 13248: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 13249:
13250: =item *
13251:
1.243 albertel 13252: logthis() : append message to the normal lonnet.log file, it gets
13253: preiodically rolled over and deleted.
1.191 harris41 13254:
13255: =item *
13256:
1.243 albertel 13257: logperm() : append a permanent message to lonnet.perm.log, this log
13258: file never gets deleted by any automated portion of the system, only
13259: messages of critical importance should go in here.
13260:
1.1119 foxr 13261:
1.243 albertel 13262: =back
13263:
13264: =head2 General File Helper Routines
13265:
13266: =over 4
1.191 harris41 13267:
13268: =item *
13269:
1.481 raeburn 13270: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
13271: (a) files in /uploaded
13272: (i) If a local copy of the file exists -
13273: compares modification date of local copy with last-modified date for
13274: definitive version stored on home server for course. If local copy is
13275: stale, requests a new version from the home server and stores it.
13276: If the original has been removed from the home server, then local copy
13277: is unlinked.
13278: (ii) If local copy does not exist -
13279: requests the file from the home server and stores it.
13280:
13281: If $caller is 'uploadrep':
13282: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
13283: for request for files originally uploaded via DOCS.
13284: - returns 'ok' if fresh local copy now available, -1 otherwise.
13285:
13286: Otherwise:
13287: This indicates a call from the content generation phase of the request.
13288: - returns the entire contents of the file or -1.
13289:
13290: (b) files in /res
13291: - returns the entire contents of a file or -1;
13292: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 13293:
1.712 albertel 13294:
13295: =item *
13296:
13297: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
13298: reference
13299:
13300: returns either a stat() list of data about the file or an empty list
13301: if the file doesn't exist or couldn't find out about it (connection
13302: problems or user unknown)
13303:
1.191 harris41 13304: =item *
13305:
1.243 albertel 13306: filelocation($dir,$file) : returns file system location of a file
13307: based on URI; meant to be "fairly clean" absolute reference, $dir is a
13308: directory that relative $file lookups are to looked in ($dir of /a/dir
13309: and a file of ../bob will become /a/bob)
1.191 harris41 13310:
13311: =item *
13312:
13313: hreflocation($dir,$file) : returns file system location or a URL; same as
13314: filelocation except for hrefs
13315:
13316: =item *
13317:
13318: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
13319:
1.243 albertel 13320: =back
13321:
1.608 albertel 13322: =head2 Usererfile file routines (/uploaded*)
13323:
13324: =over 4
13325:
13326: =item *
13327:
13328: userfileupload(): main rotine for putting a file in a user or course's
13329: filespace, arguments are,
13330:
1.620 albertel 13331: formname - required - this is the name of the element in $env where the
1.608 albertel 13332: filename, and the contents of the file to create/modifed exist
1.620 albertel 13333: the filename is in $env{'form.'.$formname.'.filename'} and the
13334: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 13335: context - if coursedoc, store the file in the course of the active role
13336: of the current user;
13337: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
13338: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 13339: subdir - required - subdirectory to put the file in under ../userfiles/
13340: if undefined, it will be placed in "unknown"
13341:
13342: (This routine calls clean_filename() to remove any dangerous
13343: characters from the filename, and then calls finuserfileupload() to
13344: complete the transaction)
13345:
13346: returns either the url of the uploaded file (/uploaded/....) if successful
13347: and /adm/notfound.html if unsuccessful
13348:
13349: =item *
13350:
13351: clean_filename(): routine for cleaing a filename up for storage in
13352: userfile space, argument is:
13353:
13354: filename - proposed filename
13355:
13356: returns: the new clean filename
13357:
13358: =item *
13359:
1.1090 raeburn 13360: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 13361: userspace, probably shouldn't be called directly
13362:
13363: docuname: username or courseid of destination for the file
13364: docudom: domain of user/course of destination for the file
13365: formname: same as for userfileupload()
1.1090 raeburn 13366: fname: filename (including subdirectories) for the file
13367: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
13368: allfiles: reference to hash used to store objects found by parser
13369: codebase: reference to hash used for codebases of java objects found by parser
13370: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
13371: thumbheight: height (pixels) of thumbnail to be created for uploaded image
13372: resizewidth: width to be used to resize image using resizeImage from ImageMagick
13373: resizeheight: height to be used to resize image using resizeImage from ImageMagick
13374: context: if 'overwrite', will move the uploaded file from its temporary location to
13375: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 13376: mimetype: reference to scalar to accommodate mime type determined
13377: from File::MMagic if $parser = parse.
1.608 albertel 13378:
13379: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 13380: and /adm/notfound.html if unsuccessful (or an error message if context
13381: was 'overwrite').
13382:
1.608 albertel 13383:
13384: =item *
13385:
13386: renameuserfile(): renames an existing userfile to a new name
13387:
13388: Args:
13389: docuname: username or courseid of destination for the file
13390: docudom: domain of user/course of destination for the file
13391: old: current file name (including any subdirs under userfiles)
13392: new: desired file name (including any subdirs under userfiles)
13393:
13394: =item *
13395:
13396: mkdiruserfile(): creates a directory is a userfiles dir
13397:
13398: Args:
13399: docuname: username or courseid of destination for the file
13400: docudom: domain of user/course of destination for the file
13401: dir: dir to create (including any subdirs under userfiles)
13402:
13403: =item *
13404:
13405: removeuserfile(): removes a file that exists in userfiles
13406:
13407: Args:
13408: docuname: username or courseid of destination for the file
13409: docudom: domain of user/course of destination for the file
13410: fname: filname to delete (including any subdirs under userfiles)
13411:
13412: =item *
13413:
13414: removeuploadedurl(): convience function for removeuserfile()
13415:
13416: Args:
13417: url: a full /uploaded/... url to delete
13418:
1.747 albertel 13419: =item *
13420:
13421: get_portfile_permissions():
13422: Args:
13423: domain: domain of user or course contain the portfolio files
13424: user: name of user or num of course contain the portfolio files
13425: Returns:
13426: hashref of a dump of the proper file_permissions.db
13427:
13428:
13429: =item *
13430:
13431: get_access_controls():
13432:
13433: Args:
13434: current_permissions: the hash ref returned from get_portfile_permissions()
13435: group: (optional) the group you want the files associated with
13436: file: (optional) the file you want access info on
13437:
13438: Returns:
1.749 raeburn 13439: a hash (keys are file names) of hashes containing
13440: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
13441: values are XML containing access control settings (see below)
1.747 albertel 13442:
13443: Internal notes:
13444:
1.749 raeburn 13445: access controls are stored in file_permissions.db as key=value pairs.
13446: key -> path to file/file_name\0uniqueID:scope_end_start
13447: where scope -> public,guest,course,group,domains or users.
13448: end -> UNIX time for end of access (0 -> no end date)
13449: start -> UNIX time for start of access
13450:
13451: value -> XML description of access control
13452: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
13453: <start></start>
13454: <end></end>
13455:
13456: <password></password> for scope type = guest
13457:
13458: <domain></domain> for scope type = course or group
13459: <number></number>
13460: <roles id="">
13461: <role></role>
13462: <access></access>
13463: <section></section>
13464: <group></group>
13465: </roles>
13466:
13467: <dom></dom> for scope type = domains
13468:
13469: <users> for scope type = users
13470: <user>
13471: <uname></uname>
13472: <udom></udom>
13473: </user>
13474: </users>
13475: </scope>
13476:
13477: Access data is also aggregated for each file in an additional key=value pair:
13478: key -> path to file/file_name\0accesscontrol
13479: value -> reference to hash
13480: hash contains key = value pairs
13481: where key = uniqueID:scope_end_start
13482: value = UNIX time record was last updated
13483:
13484: Used to improve speed of look-ups of access controls for each file.
13485:
13486: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
13487:
1.1198 raeburn 13488: =item *
13489:
1.749 raeburn 13490: modify_access_controls():
13491:
13492: Modifies access controls for a portfolio file
13493: Args
13494: 1. file name
13495: 2. reference to hash of required changes,
13496: 3. domain
13497: 4. username
13498: where domain,username are the domain of the portfolio owner
13499: (either a user or a course)
13500:
13501: Returns:
13502: 1. result of additions or updates ('ok' or 'error', with error message).
13503: 2. result of deletions ('ok' or 'error', with error message).
13504: 3. reference to hash of any new or updated access controls.
13505: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
13506: key = integer (inbound ID)
1.1198 raeburn 13507: value = uniqueID
13508:
13509: =item *
13510:
13511: get_timebased_id():
13512:
13513: Attempts to get a unique timestamp-based suffix for use with items added to a
13514: course via the Course Editor (e.g., folders, composite pages,
13515: group bulletin boards).
13516:
13517: Args: (first three required; six others optional)
13518:
13519: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
13520: docssequence, or name of group
13521:
13522: 2. keyid (alphanumeric): name of temporary locking key in hash,
13523: e.g., num, boardids
13524:
13525: 3. namespace: name of gdbm file used to store suffixes already assigned;
13526: file will be named nohist_namespace.db
13527:
13528: 4. cdom: domain of course; default is current course domain from %env
13529:
13530: 5. cnum: course number; default is current course number from %env
13531:
13532: 6. idtype: set to concat if an additional digit is to be appended to the
13533: unix timestamp to form the suffix, if the plain timestamp is already
13534: in use. Default is to not do this, but simply increment the unix
13535: timestamp by 1 until a unique key is obtained.
13536:
13537: 7. who: holder of locking key; defaults to user:domain for user.
13538:
13539: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
13540: retrying); default is 3.
13541:
13542: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
13543:
13544: Returns:
13545:
13546: 1. suffix obtained (numeric)
13547:
13548: 2. result of deleting locking key (ok if deleted, or lock never obtained)
13549:
13550: 3. error: contains (localized) error message if an error occurred.
13551:
1.747 albertel 13552:
1.608 albertel 13553: =back
13554:
1.243 albertel 13555: =head2 HTTP Helper Routines
13556:
13557: =over 4
13558:
1.191 harris41 13559: =item *
13560:
13561: escape() : unpack non-word characters into CGI-compatible hex codes
13562:
13563: =item *
13564:
13565: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
13566:
1.243 albertel 13567: =back
13568:
13569: =head1 PRIVATE SUBROUTINES
13570:
13571: =head2 Underlying communication routines (Shouldn't call)
13572:
13573: =over 4
13574:
13575: =item *
13576:
13577: subreply() : tries to pass a message to lonc, returns con_lost if incapable
13578:
13579: =item *
13580:
13581: reply() : uses subreply to send a message to remote machine, logs all failures
13582:
13583: =item *
13584:
13585: critical() : passes a critical message to another server; if cannot
13586: get through then place message in connection buffer directory and
13587: returns con_delayed, if incapable of saving message, returns
13588: con_failed
13589:
13590: =item *
13591:
13592: reconlonc() : tries to reconnect lonc client processes.
13593:
13594: =back
13595:
13596: =head2 Resource Access Logging
13597:
13598: =over 4
13599:
13600: =item *
13601:
13602: flushcourselogs() : flush (save) buffer logs and access logs
13603:
13604: =item *
13605:
13606: courselog($what) : save message for course in hash
13607:
13608: =item *
13609:
13610: courseacclog($what) : save message for course using &courselog(). Perform
13611: special processing for specific resource types (problems, exams, quizzes, etc).
13612:
1.191 harris41 13613: =item *
13614:
13615: goodbye() : flush course logs and log shutting down; it is called in srm.conf
13616: as a PerlChildExitHandler
1.243 albertel 13617:
13618: =back
13619:
13620: =head2 Other
13621:
13622: =over 4
13623:
13624: =item *
13625:
13626: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 13627:
13628: =back
13629:
13630: =cut
1.877 foxr 13631:
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