Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1172.2.101
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1172.2.101! raeburn 4: # $Id: lonnet.pm,v 1.1172.2.100 2018/09/21 03:58:53 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:
1.1172.2.36 raeburn 78: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1138 raeburn 79: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
80: %managerstab);
1.871 albertel 81:
82: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
83: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
84: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 85: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 86:
1.1 albertel 87: use IO::Socket;
1.31 www 88: use GDBM_File;
1.208 albertel 89: use HTML::LCParser;
1.88 www 90: use Fcntl qw(:flock);
1.870 albertel 91: use Storable qw(thaw nfreeze);
1.1172.2.79 raeburn 92: use Time::HiRes qw( sleep gettimeofday tv_interval );
1.599 albertel 93: use Cache::Memcached;
1.676 albertel 94: use Digest::MD5;
1.790 albertel 95: use Math::Random;
1.1024 raeburn 96: use File::MMagic;
1.807 albertel 97: use LONCAPA qw(:DEFAULT :match);
1.740 www 98: use LONCAPA::Configuration;
1.1160 www 99: use LONCAPA::lonmetadata;
1.1172.2.22 raeburn 100: use LONCAPA::Lond;
1.1117 foxr 101:
1.1090 raeburn 102: use File::Copy;
1.676 albertel 103:
1.195 www 104: my $readit;
1.1172.2.79 raeburn 105: my $max_connection_retries = 20; # Or some such value.
1.1 albertel 106:
1.619 albertel 107: require Exporter;
108:
109: our @ISA = qw (Exporter);
110: our @EXPORT = qw(%env);
111:
1.1172.2.9 raeburn 112: # ------------------------------------ Logging (parameters, docs, slots, roles)
1.729 www 113: {
114: my $logid;
1.1172.2.9 raeburn 115: sub write_log {
116: my ($context,$hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
117: if ($context eq 'course') {
118: if (($cnum eq '') || ($cdom eq '')) {
119: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
120: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
121: }
1.957 raeburn 122: }
1.1172.2.13 raeburn 123: $logid ++;
1.957 raeburn 124: my $now = time();
125: my $id=$now.'00000'.$$.'00000'.$logid;
1.1172.2.9 raeburn 126: my $logentry = {
127: $id => {
128: 'exe_uname' => $env{'user.name'},
129: 'exe_udom' => $env{'user.domain'},
130: 'exe_time' => $now,
131: 'exe_ip' => $ENV{'REMOTE_ADDR'},
132: 'delflag' => $delflag,
133: 'logentry' => $storehash,
134: 'uname' => $uname,
135: 'udom' => $udom,
136: }
137: };
138: return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
1.729 www 139: }
140: }
1.1 albertel 141:
1.163 harris41 142: sub logtouch {
143: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 144: unless (-e "$execdir/logs/lonnet.log") {
1.1172.2.96 raeburn 145: open(my $fh,">>","$execdir/logs/lonnet.log");
1.163 harris41 146: close $fh;
147: }
148: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
149: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
150: }
151:
1.1 albertel 152: sub logthis {
153: my $message=shift;
154: my $execdir=$perlvar{'lonDaemons'};
155: my $now=time;
156: my $local=localtime($now);
1.1172.2.96 raeburn 157: if (open(my $fh,">>","$execdir/logs/lonnet.log")) {
1.986 foxr 158: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
159: print $fh $logstring;
1.448 albertel 160: close($fh);
161: }
1.1 albertel 162: return 1;
163: }
164:
165: sub logperm {
166: my $message=shift;
167: my $execdir=$perlvar{'lonDaemons'};
168: my $now=time;
169: my $local=localtime($now);
1.1172.2.96 raeburn 170: if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {
1.448 albertel 171: print $fh "$now:$message:$local\n";
172: close($fh);
173: }
1.1 albertel 174: return 1;
175: }
176:
1.850 albertel 177: sub create_connection {
1.853 albertel 178: my ($hostname,$lonid) = @_;
1.851 albertel 179: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 180: Type => SOCK_STREAM,
181: Timeout => 10);
182: return 0 if (!$client);
1.890 albertel 183: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 184: my $result = <$client>;
185: chomp($result);
186: return 1 if ($result eq 'done');
187: return 0;
188: }
189:
1.983 raeburn 190: sub get_server_timezone {
191: my ($cnum,$cdom) = @_;
192: my $home=&homeserver($cnum,$cdom);
193: if ($home ne 'no_host') {
194: my $cachetime = 24*3600;
195: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
196: if (defined($cached)) {
197: return $timezone;
198: } else {
199: my $timezone = &reply('servertimezone',$home);
200: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
201: }
202: }
203: }
1.850 albertel 204:
1.1106 raeburn 205: sub get_server_distarch {
206: my ($lonhost,$ignore_cache) = @_;
207: if (defined($lonhost)) {
208: if (!defined(&hostname($lonhost))) {
209: return;
210: }
211: my $cachetime = 12*3600;
212: if (!$ignore_cache) {
213: my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
214: if (defined($cached)) {
215: return $distarch;
216: }
217: }
218: my $rep = &reply('serverdistarch',$lonhost);
219: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
220: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
221: $rep eq '') {
222: return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
223: }
224: }
225: return;
226: }
227:
1.993 raeburn 228: sub get_server_loncaparev {
1.1073 raeburn 229: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 230: if (defined($lonhost)) {
231: if (!defined(&hostname($lonhost))) {
232: undef($lonhost);
233: }
234: }
235: if (!defined($lonhost)) {
236: if (defined(&domain($dom,'primary'))) {
237: $lonhost=&domain($dom,'primary');
238: if ($lonhost eq 'no_host') {
239: undef($lonhost);
240: }
241: }
242: }
243: if (defined($lonhost)) {
1.1073 raeburn 244: my $cachetime = 12*3600;
245: if (!$ignore_cache) {
246: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
247: if (defined($cached)) {
248: return $loncaparev;
249: }
250: }
251: my ($answer,$loncaparev);
252: my @ids=¤t_machine_ids();
253: if (grep(/^\Q$lonhost\E$/,@ids)) {
254: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 255: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 256: $loncaparev = $1;
257: }
258: } else {
259: $answer = &reply('serverloncaparev',$lonhost);
260: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
261: if ($caller eq 'loncron') {
262: my $ua=new LWP::UserAgent;
1.1082 raeburn 263: $ua->timeout(4);
1.1073 raeburn 264: my $protocol = $protocol{$lonhost};
265: $protocol = 'http' if ($protocol ne 'https');
266: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
267: my $request=new HTTP::Request('GET',$url);
268: my $response=$ua->request($request);
269: unless ($response->is_error()) {
270: my $content = $response->content;
1.1081 raeburn 271: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 272: $loncaparev = $1;
273: }
274: }
275: } else {
276: $loncaparev = $loncaparevs{$lonhost};
277: }
1.1081 raeburn 278: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 279: $loncaparev = $1;
280: }
1.993 raeburn 281: }
1.1073 raeburn 282: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 283: }
284: }
285:
1.1074 raeburn 286: sub get_server_homeID {
287: my ($hostname,$ignore_cache,$caller) = @_;
288: unless ($ignore_cache) {
289: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
290: if (defined($cached)) {
291: return $serverhomeID;
292: }
293: }
294: my $cachetime = 12*3600;
295: my $serverhomeID;
296: if ($caller eq 'loncron') {
297: my @machine_ids = &machine_ids($hostname);
298: foreach my $id (@machine_ids) {
299: my $response = &reply('serverhomeID',$id);
300: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
301: $serverhomeID = $response;
302: last;
303: }
304: }
305: if ($serverhomeID eq '') {
306: $serverhomeID = $machine_ids[-1];
307: }
308: } else {
309: $serverhomeID = $serverhomeIDs{$hostname};
310: }
311: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
312: }
313:
1.1121 raeburn 314: sub get_remote_globals {
315: my ($lonhost,$whathash,$ignore_cache) = @_;
1.1125 raeburn 316: my ($result,%returnhash,%whatneeded);
317: if (ref($whathash) eq 'HASH') {
1.1121 raeburn 318: foreach my $what (sort(keys(%{$whathash}))) {
319: my $hashid = $lonhost.'-'.$what;
1.1125 raeburn 320: my ($response,$cached);
1.1121 raeburn 321: unless ($ignore_cache) {
1.1125 raeburn 322: ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
1.1121 raeburn 323: }
324: if (defined($cached)) {
1.1125 raeburn 325: $returnhash{$what} = $response;
1.1121 raeburn 326: } else {
1.1125 raeburn 327: $whatneeded{$what} = 1;
1.1121 raeburn 328: }
329: }
1.1125 raeburn 330: if (keys(%whatneeded) == 0) {
331: $result = 'ok';
332: } else {
1.1121 raeburn 333: my $requested = &freeze_escape(\%whatneeded);
334: my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
1.1125 raeburn 335: if (($rep=~/^(refused|rejected|error)/) || ($rep eq 'con_lost') ||
336: ($rep eq 'unknown_cmd')) {
337: $result = $rep;
338: } else {
339: $result = 'ok';
1.1121 raeburn 340: my @pairs=split(/\&/,$rep);
1.1125 raeburn 341: foreach my $item (@pairs) {
342: my ($key,$value)=split(/=/,$item,2);
343: my $what = &unescape($key);
344: my $hashid = $lonhost.'-'.$what;
345: $returnhash{$what}=&thaw_unescape($value);
346: &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
1.1121 raeburn 347: }
348: }
349: }
350: }
1.1125 raeburn 351: return ($result,\%returnhash);
1.1121 raeburn 352: }
353:
1.1124 raeburn 354: sub remote_devalidate_cache {
1.1172.2.35 raeburn 355: my ($lonhost,$cachekeys) = @_;
356: my $items;
357: return unless (ref($cachekeys) eq 'ARRAY');
358: my $cachestr = join('&',@{$cachekeys});
359: return &reply('devalidatecache:'.&escape($cachestr),$lonhost);
1.1124 raeburn 360: }
361:
1.1 albertel 362: # -------------------------------------------------- Non-critical communication
363: sub subreply {
364: my ($cmd,$server)=@_;
1.838 albertel 365: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 366: #
367: # With loncnew process trimming, there's a timing hole between lonc server
368: # process exit and the master server picking up the listen on the AF_UNIX
369: # socket. In that time interval, a lock file will exist:
370:
371: my $lockfile=$peerfile.".lock";
372: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
1.1172.2.79 raeburn 373: sleep(0.1);
1.549 foxr 374: }
375: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 376: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 377: #
1.550 foxr 378: # We'll give the connection a few tries before abandoning it. If
379: # connection is not possible, we'll con_lost back to the client.
380: #
381: my $client;
382: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
383: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
384: Type => SOCK_STREAM,
385: Timeout => 10);
1.869 albertel 386: if ($client) {
1.550 foxr 387: last; # Connected!
1.850 albertel 388: } else {
1.853 albertel 389: &create_connection(&hostname($server),$server);
1.550 foxr 390: }
1.1172.2.79 raeburn 391: sleep(0.1); # Try again later if failed connection.
1.550 foxr 392: }
393: my $answer;
394: if ($client) {
1.704 albertel 395: print $client "sethost:$server:$cmd\n";
1.550 foxr 396: $answer=<$client>;
397: if (!$answer) { $answer="con_lost"; }
398: chomp($answer);
399: } else {
400: $answer = 'con_lost'; # Failed connection.
401: }
1.1 albertel 402: return $answer;
403: }
404:
405: sub reply {
406: my ($cmd,$server)=@_;
1.838 albertel 407: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 408: my $answer=subreply($cmd,$server);
1.65 www 409: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 410: &logthis("<font color=\"blue\">WARNING:".
1.12 www 411: " $cmd to $server returned $answer</font>");
412: }
1.1 albertel 413: return $answer;
414: }
415:
416: # ----------------------------------------------------------- Send USR1 to lonc
417:
418: sub reconlonc {
1.891 albertel 419: my ($lonid) = @_;
420: if ($lonid) {
1.1172.2.72 raeburn 421: my $hostname = &hostname($lonid);
1.891 albertel 422: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
423: if ($hostname && -e $peerfile) {
424: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
425: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
426: Type => SOCK_STREAM,
427: Timeout => 10);
428: if ($client) {
429: print $client ("reset_retries\n");
430: my $answer=<$client>;
431: #reset just this one.
432: }
433: }
434: return;
435: }
436:
1.836 www 437: &logthis("Trying to reconnect lonc");
1.1 albertel 438: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.1172.2.96 raeburn 439: if (open(my $fh,"<",$loncfile)) {
1.1 albertel 440: my $loncpid=<$fh>;
441: chomp($loncpid);
442: if (kill 0 => $loncpid) {
443: &logthis("lonc at pid $loncpid responding, sending USR1");
444: kill USR1 => $loncpid;
445: sleep 1;
1.836 www 446: } else {
1.12 www 447: &logthis(
1.672 albertel 448: "<font color=\"blue\">WARNING:".
1.12 www 449: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 450: }
451: } else {
1.836 www 452: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 453: }
454: }
455:
456: # ------------------------------------------------------ Critical communication
1.12 www 457:
1.1 albertel 458: sub critical {
459: my ($cmd,$server)=@_;
1.838 albertel 460: unless (&hostname($server)) {
1.672 albertel 461: &logthis("<font color=\"blue\">WARNING:".
1.89 www 462: " Critical message to unknown server ($server)</font>");
463: return 'no_such_host';
464: }
1.1 albertel 465: my $answer=reply($cmd,$server);
466: if ($answer eq 'con_lost') {
1.1172.2.72 raeburn 467: &reconlonc($server);
1.589 albertel 468: my $answer=reply($cmd,$server);
1.1 albertel 469: if ($answer eq 'con_lost') {
470: my $now=time;
471: my $middlename=$cmd;
1.5 www 472: $middlename=substr($middlename,0,16);
1.1 albertel 473: $middlename=~s/\W//g;
474: my $dfilename=
1.305 www 475: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
476: $dumpcount++;
1.1 albertel 477: {
1.448 albertel 478: my $dfh;
1.1172.2.96 raeburn 479: if (open($dfh,">",$dfilename)) {
1.448 albertel 480: print $dfh "$cmd\n";
481: close($dfh);
482: }
1.1 albertel 483: }
1.1172.2.79 raeburn 484: sleep 1;
1.1 albertel 485: my $wcmd='';
486: {
1.448 albertel 487: my $dfh;
1.1172.2.96 raeburn 488: if (open($dfh,"<",$dfilename)) {
1.448 albertel 489: $wcmd=<$dfh>;
490: close($dfh);
491: }
1.1 albertel 492: }
493: chomp($wcmd);
1.7 www 494: if ($wcmd eq $cmd) {
1.672 albertel 495: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 496: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 497: &logperm("D:$server:$cmd");
498: return 'con_delayed';
499: } else {
1.672 albertel 500: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 501: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 502: &logperm("F:$server:$cmd");
503: return 'con_failed';
504: }
505: }
506: }
507: return $answer;
1.405 albertel 508: }
509:
1.755 albertel 510: # ------------------------------------------- check if return value is an error
511:
512: sub error {
513: my ($result) = @_;
1.756 albertel 514: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 515: if ($2 == 2) { return undef; }
516: return $1;
517: }
518: return undef;
519: }
520:
1.783 albertel 521: sub convert_and_load_session_env {
522: my ($lonidsdir,$handle)=@_;
523: my @profile;
524: {
1.917 albertel 525: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
526: if (!$opened) {
1.915 albertel 527: return 0;
528: }
1.783 albertel 529: flock($idf,LOCK_SH);
530: @profile=<$idf>;
531: close($idf);
532: }
533: my %temp_env;
534: foreach my $line (@profile) {
1.786 albertel 535: if ($line !~ m/=/) {
536: return 0;
537: }
1.783 albertel 538: chomp($line);
539: my ($envname,$envvalue)=split(/=/,$line,2);
540: $temp_env{&unescape($envname)} = &unescape($envvalue);
541: }
542: unlink("$lonidsdir/$handle.id");
543: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
544: 0640)) {
545: %disk_env = %temp_env;
546: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
547: untie(%disk_env);
548: }
1.786 albertel 549: return 1;
1.783 albertel 550: }
551:
1.374 www 552: # ------------------------------------------- Transfer profile into environment
1.780 albertel 553: my $env_loaded;
554: sub transfer_profile_to_env {
1.788 albertel 555: my ($lonidsdir,$handle,$force_transfer) = @_;
556: if (!$force_transfer && $env_loaded) { return; }
1.374 www 557:
1.720 albertel 558: if (!defined($lonidsdir)) {
559: $lonidsdir = $perlvar{'lonIDsDir'};
560: }
561: if (!defined($handle)) {
562: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
563: }
564:
1.786 albertel 565: my $convert;
566: {
1.917 albertel 567: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
568: if (!$opened) {
1.915 albertel 569: return;
570: }
1.786 albertel 571: flock($idf,LOCK_SH);
572: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
573: &GDBM_READER(),0640)) {
574: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
575: untie(%disk_env);
576: } else {
577: $convert = 1;
578: }
579: }
580: if ($convert) {
581: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
582: &logthis("Failed to load session, or convert session.");
583: }
1.374 www 584: }
1.783 albertel 585:
1.786 albertel 586: my %remove;
1.783 albertel 587: while ( my $envname = each(%env) ) {
1.433 matthew 588: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
589: if ($time < time-300) {
1.783 albertel 590: $remove{$key}++;
1.433 matthew 591: }
592: }
593: }
1.783 albertel 594:
1.619 albertel 595: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 596: $env_loaded=1;
1.783 albertel 597: foreach my $expired_key (keys(%remove)) {
1.433 matthew 598: &delenv($expired_key);
1.374 www 599: }
1.1 albertel 600: }
601:
1.916 albertel 602: # ---------------------------------------------------- Check for valid session
603: sub check_for_valid_session {
1.1172.2.96 raeburn 604: my ($r,$name,$userhashref,$domref) = @_;
1.916 albertel 605: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
1.1155 raeburn 606: if ($name eq '') {
607: $name = 'lonID';
608: }
609: my $lonid=$cookies{$name};
1.916 albertel 610: return undef if (!$lonid);
611:
612: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1155 raeburn 613: my $lonidsdir;
614: if ($name eq 'lonDAV') {
615: $lonidsdir=$r->dir_config('lonDAVsessDir');
616: } else {
617: $lonidsdir=$r->dir_config('lonIDsDir');
618: }
1.1172.2.96 raeburn 619: if (!-e "$lonidsdir/$handle.id") {
620: if ((ref($domref)) && ($name eq 'lonID') &&
621: ($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
622: my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
623: if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
624: $$domref = $possudom;
625: }
626: }
627: return undef;
628: }
1.916 albertel 629:
1.917 albertel 630: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
631: return undef if (!$opened);
1.916 albertel 632:
633: flock($idf,LOCK_SH);
634: my %disk_env;
635: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
636: &GDBM_READER(),0640)) {
637: return undef;
638: }
639:
640: if (!defined($disk_env{'user.name'})
641: || !defined($disk_env{'user.domain'})) {
642: return undef;
643: }
1.1172.2.18 raeburn 644:
1.1172.2.36 raeburn 645: if (ref($userhashref) eq 'HASH') {
646: $userhashref->{'name'} = $disk_env{'user.name'};
647: $userhashref->{'domain'} = $disk_env{'user.domain'};
1.1172.2.18 raeburn 648: }
649:
1.916 albertel 650: return $handle;
651: }
652:
1.830 albertel 653: sub timed_flock {
654: my ($file,$lock_type) = @_;
655: my $failed=0;
656: eval {
657: local $SIG{__DIE__}='DEFAULT';
658: local $SIG{ALRM}=sub {
659: $failed=1;
660: die("failed lock");
661: };
662: alarm(13);
663: flock($file,$lock_type);
664: alarm(0);
665: };
666: if ($failed) {
667: return undef;
668: } else {
669: return 1;
670: }
671: }
672:
1.5 www 673: # ---------------------------------------------------------- Append Environment
674:
675: sub appenv {
1.949 raeburn 676: my ($newenv,$roles) = @_;
677: if (ref($newenv) eq 'HASH') {
678: foreach my $key (keys(%{$newenv})) {
679: my $refused = 0;
680: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
681: $refused = 1;
682: if (ref($roles) eq 'ARRAY') {
1.1172.2.40 raeburn 683: my ($type,$role) = ($key =~ m{^user\.(role|priv)\.(.+?)\./});
1.949 raeburn 684: if (grep(/^\Q$role\E$/,@{$roles})) {
685: $refused = 0;
686: }
687: }
688: }
689: if ($refused) {
690: &logthis("<font color=\"blue\">WARNING: ".
691: "Attempt to modify environment ".$key." to ".$newenv->{$key}
692: .'</font>');
693: delete($newenv->{$key});
694: } else {
695: $env{$key}=$newenv->{$key};
696: }
697: }
1.1172.2.96 raeburn 698: my $lonids = $perlvar{'lonIDsDir'};
699: if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) {
700: my $opened = open(my $env_file,'+<',$env{'user.environment'});
701: if ($opened
702: && &timed_flock($env_file,LOCK_EX)
703: &&
704: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
705: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
706: while (my ($key,$value) = each(%{$newenv})) {
707: $disk_env{$key} = $value;
708: }
709: untie(%disk_env);
710: }
1.35 www 711: }
1.191 harris41 712: }
1.56 www 713: return 'ok';
714: }
715: # ----------------------------------------------------- Delete from Environment
716:
717: sub delenv {
1.1104 raeburn 718: my ($delthis,$regexp,$roles) = @_;
719: if (($delthis=~/^user\.role/) || ($delthis=~/^user\.priv/)) {
720: my $refused = 1;
721: if (ref($roles) eq 'ARRAY') {
722: my ($type,$role) = ($delthis =~ /^user\.(role|priv)\.([^.]+)\./);
723: if (grep(/^\Q$role\E$/,@{$roles})) {
724: $refused = 0;
725: }
726: }
727: if ($refused) {
728: &logthis("<font color=\"blue\">WARNING: ".
729: "Attempt to delete from environment ".$delthis);
730: return 'error';
731: }
1.56 www 732: }
1.917 albertel 733: my $opened = open(my $env_file,'+<',$env{'user.environment'});
734: if ($opened
1.915 albertel 735: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 736: &&
737: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
738: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 739: foreach my $key (keys(%disk_env)) {
1.987 raeburn 740: if ($regexp) {
741: if ($key=~/^$delthis/) {
742: delete($env{$key});
743: delete($disk_env{$key});
744: }
745: } else {
746: if ($key=~/^\Q$delthis\E/) {
747: delete($env{$key});
748: delete($disk_env{$key});
749: }
750: }
1.448 albertel 751: }
1.783 albertel 752: untie(%disk_env);
1.5 www 753: }
754: return 'ok';
1.369 albertel 755: }
756:
1.790 albertel 757: sub get_env_multiple {
758: my ($name) = @_;
759: my @values;
760: if (defined($env{$name})) {
761: # exists is it an array
762: if (ref($env{$name})) {
763: @values=@{ $env{$name} };
764: } else {
765: $values[0]=$env{$name};
766: }
767: }
768: return(@values);
769: }
770:
1.958 www 771: # ------------------------------------------------------------------- Locking
772:
773: sub set_lock {
774: my ($text)=@_;
775: $locknum++;
776: my $id=$$.'-'.$locknum;
777: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
778: 'session.lock.'.$id => $text});
779: return $id;
780: }
781:
782: sub get_locks {
783: my $num=0;
784: my %texts=();
785: foreach my $lock (split(/\,/,$env{'session.locks'})) {
786: if ($lock=~/\w/) {
787: $num++;
788: $texts{$lock}=$env{'session.lock.'.$lock};
789: }
790: }
791: return ($num,%texts);
792: }
793:
794: sub remove_lock {
795: my ($id)=@_;
796: my $newlocks='';
797: foreach my $lock (split(/\,/,$env{'session.locks'})) {
798: if (($lock=~/\w/) && ($lock ne $id)) {
799: $newlocks.=','.$lock;
800: }
801: }
802: &appenv({'session.locks' => $newlocks});
803: &delenv('session.lock.'.$id);
804: }
805:
806: sub remove_all_locks {
807: my $activelocks=$env{'session.locks'};
808: foreach my $lock (split(/\,/,$env{'session.locks'})) {
809: if ($lock=~/\w/) {
810: &remove_lock($lock);
811: }
812: }
813: }
814:
815:
1.369 albertel 816: # ------------------------------------------ Find out current server userload
817: sub userload {
818: my $numusers=0;
819: {
820: opendir(LONIDS,$perlvar{'lonIDsDir'});
821: my $filename;
822: my $curtime=time;
823: while ($filename=readdir(LONIDS)) {
1.925 albertel 824: next if ($filename eq '.' || $filename eq '..');
825: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 826: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 827: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 828: }
829: closedir(LONIDS);
830: }
831: my $userloadpercent=0;
832: my $maxuserload=$perlvar{'lonUserLoadLim'};
833: if ($maxuserload) {
1.371 albertel 834: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 835: }
1.372 albertel 836: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 837: return $userloadpercent;
1.283 www 838: }
839:
1.1 albertel 840: # ------------------------------ Find server with least workload from spare.tab
1.11 www 841:
1.1 albertel 842: sub spareserver {
1.1083 raeburn 843: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 844: my $spare_server;
1.370 albertel 845: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 846: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
847: : $userloadpercent;
1.1083 raeburn 848: my ($uint_dom,$remotesessions);
849: if (($udom ne '') && (&domain($udom) ne '')) {
850: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
851: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
852: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
853: $remotesessions = $udomdefaults{'remotesessions'};
854: }
1.1123 raeburn 855: my $spareshash = &this_host_spares($udom);
856: if (ref($spareshash) eq 'HASH') {
857: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
858: foreach my $try_server (@{ $spareshash->{'primary'} }) {
1.1172.2.62 raeburn 859: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
860: $try_server));
1.1123 raeburn 861: ($spare_server, $lowest_load) =
862: &compare_server_load($try_server, $spare_server, $lowest_load);
863: }
1.1083 raeburn 864: }
1.784 albertel 865:
1.1123 raeburn 866: my $found_server = ($spare_server ne '' && $lowest_load < 100);
867:
868: if (!$found_server) {
869: if (ref($spareshash->{'default'}) eq 'ARRAY') {
870: foreach my $try_server (@{ $spareshash->{'default'} }) {
1.1172.2.62 raeburn 871: next unless (&spare_can_host($udom,$uint_dom,
872: $remotesessions,$try_server));
1.1123 raeburn 873: ($spare_server, $lowest_load) =
874: &compare_server_load($try_server, $spare_server, $lowest_load);
875: }
876: }
877: }
1.784 albertel 878: }
879:
880: if (!$want_server_name) {
1.968 raeburn 881: my $protocol = 'http';
882: if ($protocol{$spare_server} eq 'https') {
883: $protocol = $protocol{$spare_server};
884: }
1.1001 raeburn 885: if (defined($spare_server)) {
886: my $hostname = &hostname($spare_server);
1.1083 raeburn 887: if (defined($hostname)) {
1.1001 raeburn 888: $spare_server = $protocol.'://'.$hostname;
889: }
890: }
1.784 albertel 891: }
892: return $spare_server;
893: }
894:
895: sub compare_server_load {
1.1172.2.41 raeburn 896: my ($try_server, $spare_server, $lowest_load, $required) = @_;
897:
898: if ($required) {
899: my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
900: my $remoterev = &get_server_loncaparev(undef,$try_server);
901: my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
902: if (($major eq '' && $minor eq '') ||
903: (($reqdmajor > $major) || (($reqdmajor == $major) && ($reqdminor > $minor)))) {
904: return ($spare_server,$lowest_load);
905: }
906: }
1.784 albertel 907:
908: my $loadans = &reply('load', $try_server);
909: my $userloadans = &reply('userload',$try_server);
910:
911: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1114 raeburn 912: return ($spare_server, $lowest_load); #didn't get a number from the server
1.784 albertel 913: }
914:
915: my $load;
916: if ($loadans =~ /\d/) {
917: if ($userloadans =~ /\d/) {
918: #both are numbers, pick the bigger one
919: $load = ($loadans > $userloadans) ? $loadans
920: : $userloadans;
1.411 albertel 921: } else {
1.784 albertel 922: $load = $loadans;
1.411 albertel 923: }
1.784 albertel 924: } else {
925: $load = $userloadans;
926: }
927:
928: if (($load =~ /\d/) && ($load < $lowest_load)) {
929: $spare_server = $try_server;
930: $lowest_load = $load;
1.370 albertel 931: }
1.784 albertel 932: return ($spare_server,$lowest_load);
1.202 matthew 933: }
1.914 albertel 934:
935: # --------------------------- ask offload servers if user already has a session
936: sub find_existing_session {
937: my ($udom,$uname) = @_;
1.1123 raeburn 938: my $spareshash = &this_host_spares($udom);
939: if (ref($spareshash) eq 'HASH') {
940: if (ref($spareshash->{'primary'}) eq 'ARRAY') {
941: foreach my $try_server (@{ $spareshash->{'primary'} }) {
942: return $try_server if (&has_user_session($try_server, $udom, $uname));
943: }
944: }
945: if (ref($spareshash->{'default'}) eq 'ARRAY') {
946: foreach my $try_server (@{ $spareshash->{'default'} }) {
947: return $try_server if (&has_user_session($try_server, $udom, $uname));
948: }
949: }
1.914 albertel 950: }
951: return;
952: }
953:
954: # -------------------------------- ask if server already has a session for user
955: sub has_user_session {
956: my ($lonid,$udom,$uname) = @_;
957: my $result = &reply(join(':','userhassession',
958: map {&escape($_)} ($udom,$uname)),$lonid);
959: return 1 if ($result eq 'ok');
960:
961: return 0;
962: }
963:
1.1076 raeburn 964: # --------- determine least loaded server in a user's domain which allows login
965:
966: sub choose_server {
1.1172.2.47 raeburn 967: my ($udom,$checkloginvia,$required,$skiploadbal) = @_;
1.1076 raeburn 968: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 969: my %servers = &get_servers($udom);
1.1076 raeburn 970: my $lowest_load = 30000;
1.1172.2.47 raeburn 971: my ($login_host,$hostname,$portal_path,$isredirect,$balancers);
972: if ($skiploadbal) {
973: ($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
974: unless (defined($cached)) {
975: my $cachetime = 60*60*24;
976: my %domconfig =
977: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
978: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
979: $balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
980: $cachetime);
981: }
982: }
983: }
1.1076 raeburn 984: foreach my $lonhost (keys(%servers)) {
1.1115 raeburn 985: my $loginvia;
1.1172.2.47 raeburn 986: if ($skiploadbal) {
987: if (ref($balancers) eq 'HASH') {
988: next if (exists($balancers->{$lonhost}));
989: }
990: }
1.1115 raeburn 991: if ($checkloginvia) {
992: $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
1.1116 raeburn 993: if ($loginvia) {
994: my ($server,$path) = split(/:/,$loginvia);
995: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 996: &compare_server_load($server, $login_host, $lowest_load, $required);
1.1116 raeburn 997: if ($login_host eq $server) {
998: $portal_path = $path;
1.1151 raeburn 999: $isredirect = 1;
1.1116 raeburn 1000: }
1001: } else {
1002: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 1003: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1116 raeburn 1004: if ($login_host eq $lonhost) {
1005: $portal_path = '';
1.1151 raeburn 1006: $isredirect = '';
1.1116 raeburn 1007: }
1008: }
1009: } else {
1.1076 raeburn 1010: ($login_host, $lowest_load) =
1.1172.2.41 raeburn 1011: &compare_server_load($lonhost, $login_host, $lowest_load, $required);
1.1076 raeburn 1012: }
1013: }
1014: if ($login_host ne '') {
1.1116 raeburn 1015: $hostname = &hostname($login_host);
1.1076 raeburn 1016: }
1.1172.2.88 raeburn 1017: return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);
1.1076 raeburn 1018: }
1019:
1.202 matthew 1020: # --------------------------------------------- Try to change a user's password
1021:
1022: sub changepass {
1.799 raeburn 1023: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 1024: $currentpass = &escape($currentpass);
1025: $newpass = &escape($newpass);
1.1030 raeburn 1026: my $lonhost = $perlvar{'lonHostID'};
1027: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 1028: $server);
1029: if (! $answer) {
1030: &logthis("No reply on password change request to $server ".
1031: "by $uname in domain $udom.");
1032: } elsif ($answer =~ "^ok") {
1033: &logthis("$uname in $udom successfully changed their password ".
1034: "on $server.");
1035: } elsif ($answer =~ "^pwchange_failure") {
1036: &logthis("$uname in $udom was unable to change their password ".
1037: "on $server. The action was blocked by either lcpasswd ".
1038: "or pwchange");
1039: } elsif ($answer =~ "^non_authorized") {
1040: &logthis("$uname in $udom did not get their password correct when ".
1041: "attempting to change it on $server.");
1042: } elsif ($answer =~ "^auth_mode_error") {
1043: &logthis("$uname in $udom attempted to change their password despite ".
1044: "not being locally or internally authenticated on $server.");
1045: } elsif ($answer =~ "^unknown_user") {
1046: &logthis("$uname in $udom attempted to change their password ".
1047: "on $server but were unable to because $server is not ".
1048: "their home server.");
1049: } elsif ($answer =~ "^refused") {
1050: &logthis("$server refused to change $uname in $udom password because ".
1051: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 1052: } elsif ($answer =~ "invalid_client") {
1053: &logthis("$server refused to change $uname in $udom password because ".
1054: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 1055: }
1056: return $answer;
1.1 albertel 1057: }
1058:
1.169 harris41 1059: # ----------------------- Try to determine user's current authentication scheme
1060:
1061: sub queryauthenticate {
1062: my ($uname,$udom)=@_;
1.456 albertel 1063: my $uhome=&homeserver($uname,$udom);
1064: if (!$uhome) {
1065: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
1066: return 'no_host';
1067: }
1068: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
1069: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
1070: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 1071: }
1.456 albertel 1072: return $answer;
1.169 harris41 1073: }
1074:
1.1 albertel 1075: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 1076:
1.1 albertel 1077: sub authenticate {
1.1073 raeburn 1078: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 1079: $upass=&escape($upass);
1080: $uname= &LONCAPA::clean_username($uname);
1.836 www 1081: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 1082: my $newhome;
1.836 www 1083: if ((!$uhome) || ($uhome eq 'no_host')) {
1084: # Maybe the machine was offline and only re-appeared again recently?
1085: &reconlonc();
1086: # One more
1.952 raeburn 1087: $uhome=&homeserver($uname,$udom,1);
1088: if (($uhome eq 'no_host') && $checkdefauth) {
1089: if (defined(&domain($udom,'primary'))) {
1090: $newhome=&domain($udom,'primary');
1091: }
1092: if ($newhome ne '') {
1093: $uhome = $newhome;
1094: }
1095: }
1.836 www 1096: if ((!$uhome) || ($uhome eq 'no_host')) {
1097: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 1098: return 'no_host';
1099: }
1.1 albertel 1100: }
1.1073 raeburn 1101: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 1102: if ($answer eq 'authorized') {
1.952 raeburn 1103: if ($newhome) {
1104: &logthis("User $uname at $udom authorized by $uhome, but needs account");
1105: return 'no_account_on_host';
1106: } else {
1107: &logthis("User $uname at $udom authorized by $uhome");
1108: return $uhome;
1109: }
1.471 albertel 1110: }
1111: if ($answer eq 'non_authorized') {
1112: &logthis("User $uname at $udom rejected by $uhome");
1113: return 'no_host';
1.9 www 1114: }
1.471 albertel 1115: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 1116: return 'no_host';
1117: }
1118:
1.1073 raeburn 1119: sub can_host_session {
1.1074 raeburn 1120: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 1121: my $canhost = 1;
1.1074 raeburn 1122: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 1123: if (ref($remotesessions) eq 'HASH') {
1124: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 1125: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 1126: $canhost = 0;
1127: } else {
1128: $canhost = 1;
1129: }
1130: }
1131: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 1132: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 1133: $canhost = 1;
1134: } else {
1135: $canhost = 0;
1136: }
1137: }
1138: if ($canhost) {
1139: if ($remotesessions->{'version'} ne '') {
1140: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
1141: if ($reqmajor ne '' && $reqminor ne '') {
1142: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
1143: my $major = $1;
1144: my $minor = $2;
1145: if (($major < $reqmajor ) ||
1146: (($major == $reqmajor) && ($minor < $reqminor))) {
1147: $canhost = 0;
1148: }
1149: } else {
1150: $canhost = 0;
1151: }
1152: }
1153: }
1154: }
1155: }
1156: if ($canhost) {
1157: if (ref($hostedsessions) eq 'HASH') {
1.1120 raeburn 1158: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1159: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
1.1073 raeburn 1160: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
1.1120 raeburn 1161: if (($uint_dom ne '') &&
1162: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
1.1073 raeburn 1163: $canhost = 0;
1164: } else {
1165: $canhost = 1;
1166: }
1167: }
1168: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
1.1120 raeburn 1169: if (($uint_dom ne '') &&
1170: (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
1.1073 raeburn 1171: $canhost = 1;
1172: } else {
1173: $canhost = 0;
1174: }
1175: }
1176: }
1177: }
1178: return $canhost;
1179: }
1180:
1.1083 raeburn 1181: sub spare_can_host {
1182: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1183: my $canhost=1;
1.1172.2.62 raeburn 1184: my $try_server_hostname = &hostname($try_server);
1185: my $serverhomeID = &get_server_homeID($try_server_hostname);
1186: my $serverhomedom = &host_domain($serverhomeID);
1187: my %defdomdefaults = &get_domain_defaults($serverhomedom);
1188: if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {
1189: if ($defdomdefaults{'offloadnow'}{$try_server}) {
1190: $canhost = 0;
1191: }
1192: }
1193: if (($canhost) && ($uint_dom)) {
1194: my @intdoms;
1195: my $internet_names = &get_internet_names($try_server);
1196: if (ref($internet_names) eq 'ARRAY') {
1197: @intdoms = @{$internet_names};
1198: }
1199: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1200: my $remoterev = &get_server_loncaparev(undef,$try_server);
1201: $canhost = &can_host_session($udom,$try_server,$remoterev,
1202: $remotesessions,
1203: $defdomdefaults{'hostedsessions'});
1204: }
1.1083 raeburn 1205: }
1206: return $canhost;
1207: }
1208:
1.1123 raeburn 1209: sub this_host_spares {
1210: my ($dom) = @_;
1.1126 raeburn 1211: my ($dom_in_use,$lonhost_in_use,$result);
1.1123 raeburn 1212: my @hosts = ¤t_machine_ids();
1213: foreach my $lonhost (@hosts) {
1214: if (&host_domain($lonhost) eq $dom) {
1.1126 raeburn 1215: $dom_in_use = $dom;
1216: $lonhost_in_use = $lonhost;
1.1123 raeburn 1217: last;
1218: }
1219: }
1.1126 raeburn 1220: if ($dom_in_use ne '') {
1221: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1222: }
1223: if (ref($result) ne 'HASH') {
1224: $lonhost_in_use = $perlvar{'lonHostID'};
1225: $dom_in_use = &host_domain($lonhost_in_use);
1226: $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
1227: if (ref($result) ne 'HASH') {
1228: $result = \%spareid;
1229: }
1230: }
1231: return $result;
1232: }
1233:
1234: sub spares_for_offload {
1235: my ($dom_in_use,$lonhost_in_use) = @_;
1236: my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
1.1123 raeburn 1237: if (defined($cached)) {
1238: return $result;
1239: } else {
1.1126 raeburn 1240: my $cachetime = 60*60*24;
1241: my %domconfig =
1242: &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
1243: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1244: if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
1245: if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
1246: return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
1.1123 raeburn 1247: }
1248: }
1249: }
1250: }
1.1126 raeburn 1251: return;
1.1123 raeburn 1252: }
1253:
1.1129 raeburn 1254: sub get_lonbalancer_config {
1255: my ($servers) = @_;
1256: my ($currbalancer,$currtargets);
1257: if (ref($servers) eq 'HASH') {
1258: foreach my $server (keys(%{$servers})) {
1259: my %what = (
1260: spareid => 1,
1261: perlvar => 1,
1262: );
1263: my ($result,$returnhash) = &get_remote_globals($server,\%what);
1264: if ($result eq 'ok') {
1265: if (ref($returnhash) eq 'HASH') {
1266: if (ref($returnhash->{'perlvar'}) eq 'HASH') {
1267: if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
1268: $currbalancer = $server;
1269: $currtargets = {};
1270: if (ref($returnhash->{'spareid'}) eq 'HASH') {
1271: if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
1272: $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
1273: }
1274: if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
1275: $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
1276: }
1277: }
1278: last;
1279: }
1280: }
1281: }
1282: }
1283: }
1284: }
1285: return ($currbalancer,$currtargets);
1286: }
1287:
1288: sub check_loadbalancing {
1.1172.2.88 raeburn 1289: my ($uname,$udom,$caller) = @_;
1.1172.2.12 raeburn 1290: my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
1291: $rule_in_effect,$offloadto,$otherserver);
1.1129 raeburn 1292: my $lonhost = $perlvar{'lonHostID'};
1.1172.2.4 raeburn 1293: my @hosts = ¤t_machine_ids();
1.1129 raeburn 1294: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
1295: my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
1296: my $intdom = &Apache::lonnet::internet_dom($lonhost);
1297: my $serverhomedom = &host_domain($lonhost);
1.1172.2.75 raeburn 1298: my $domneedscache;
1.1129 raeburn 1299: my $cachetime = 60*60*24;
1300:
1301: if (($uintdom ne '') && ($uintdom eq $intdom)) {
1302: $dom_in_use = $udom;
1303: $homeintdom = 1;
1304: } else {
1305: $dom_in_use = $serverhomedom;
1306: }
1307: my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
1308: unless (defined($cached)) {
1309: my %domconfig =
1310: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
1311: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1130 raeburn 1312: $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
1.1172.2.75 raeburn 1313: } else {
1314: $domneedscache = $dom_in_use;
1.1129 raeburn 1315: }
1316: }
1317: if (ref($result) eq 'HASH') {
1.1172.2.12 raeburn 1318: ($is_balancer,$currtargets,$currrules) =
1319: &check_balancer_result($result,@hosts);
1.1129 raeburn 1320: if ($is_balancer) {
1321: if (ref($currrules) eq 'HASH') {
1322: if ($homeintdom) {
1323: if ($uname ne '') {
1324: if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
1325: my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
1326: if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
1327: $rule_in_effect = $currrules->{'_LC_author'};
1328: } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
1329: $rule_in_effect = $currrules->{'_LC_adv'}
1330: }
1331: }
1332: if ($rule_in_effect eq '') {
1333: my %userenv = &userenvironment($udom,$uname,'inststatus');
1334: if ($userenv{'inststatus'} ne '') {
1335: my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
1336: my ($othertitle,$usertypes,$types) =
1337: &Apache::loncommon::sorted_inst_types($udom);
1338: if (ref($types) eq 'ARRAY') {
1339: foreach my $type (@{$types}) {
1340: if (grep(/^\Q$type\E$/,@statuses)) {
1341: if (exists($currrules->{$type})) {
1342: $rule_in_effect = $currrules->{$type};
1343: }
1344: }
1345: }
1346: }
1347: } else {
1348: if (exists($currrules->{'default'})) {
1349: $rule_in_effect = $currrules->{'default'};
1350: }
1351: }
1352: }
1353: } else {
1354: if (exists($currrules->{'default'})) {
1355: $rule_in_effect = $currrules->{'default'};
1356: }
1357: }
1358: } else {
1359: if ($currrules->{'_LC_external'} ne '') {
1360: $rule_in_effect = $currrules->{'_LC_external'};
1361: }
1362: }
1363: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1364: $uname,$udom);
1365: }
1366: }
1367: } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
1.1172.2.35 raeburn 1368: ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
1.1129 raeburn 1369: unless (defined($cached)) {
1370: my %domconfig =
1371: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
1372: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1.1172.2.75 raeburn 1373: $result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);
1374: } else {
1375: $domneedscache = $serverhomedom;
1.1129 raeburn 1376: }
1377: }
1378: if (ref($result) eq 'HASH') {
1.1172.2.12 raeburn 1379: ($is_balancer,$currtargets,$currrules) =
1380: &check_balancer_result($result,@hosts);
1381: if ($is_balancer) {
1.1129 raeburn 1382: if (ref($currrules) eq 'HASH') {
1383: if ($currrules->{'_LC_internetdom'} ne '') {
1384: $rule_in_effect = $currrules->{'_LC_internetdom'};
1385: }
1386: }
1387: $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
1388: $uname,$udom);
1389: }
1390: } else {
1391: if ($perlvar{'lonBalancer'} eq 'yes') {
1392: $is_balancer = 1;
1393: $offloadto = &this_host_spares($dom_in_use);
1394: }
1.1172.2.75 raeburn 1395: unless (defined($cached)) {
1396: $domneedscache = $serverhomedom;
1397: }
1.1129 raeburn 1398: }
1399: } else {
1400: if ($perlvar{'lonBalancer'} eq 'yes') {
1401: $is_balancer = 1;
1402: $offloadto = &this_host_spares($dom_in_use);
1403: }
1.1172.2.75 raeburn 1404: unless (defined($cached)) {
1405: $domneedscache = $serverhomedom;
1406: }
1407: }
1408: if ($domneedscache) {
1409: &do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
1.1129 raeburn 1410: }
1.1172.2.5 raeburn 1411: if ($is_balancer) {
1412: my $lowest_load = 30000;
1413: if (ref($offloadto) eq 'HASH') {
1414: if (ref($offloadto->{'primary'}) eq 'ARRAY') {
1415: foreach my $try_server (@{$offloadto->{'primary'}}) {
1416: ($otherserver,$lowest_load) =
1417: &compare_server_load($try_server,$otherserver,$lowest_load);
1418: }
1.1129 raeburn 1419: }
1.1172.2.5 raeburn 1420: my $found_server = ($otherserver ne '' && $lowest_load < 100);
1.1129 raeburn 1421:
1.1172.2.5 raeburn 1422: if (!$found_server) {
1423: if (ref($offloadto->{'default'}) eq 'ARRAY') {
1424: foreach my $try_server (@{$offloadto->{'default'}}) {
1425: ($otherserver,$lowest_load) =
1426: &compare_server_load($try_server,$otherserver,$lowest_load);
1427: }
1428: }
1429: }
1430: } elsif (ref($offloadto) eq 'ARRAY') {
1431: if (@{$offloadto} == 1) {
1432: $otherserver = $offloadto->[0];
1433: } elsif (@{$offloadto} > 1) {
1434: foreach my $try_server (@{$offloadto}) {
1.1129 raeburn 1435: ($otherserver,$lowest_load) =
1436: &compare_server_load($try_server,$otherserver,$lowest_load);
1437: }
1438: }
1439: }
1.1172.2.88 raeburn 1440: unless ($caller eq 'login') {
1441: if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
1442: $is_balancer = 0;
1443: if ($uname ne '' && $udom ne '') {
1444: if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
1.1172.2.5 raeburn 1445:
1.1172.2.88 raeburn 1446: &appenv({'user.loadbalexempt' => $lonhost,
1447: 'user.loadbalcheck.time' => time});
1448: }
1.1172.2.5 raeburn 1449: }
1.1129 raeburn 1450: }
1451: }
1452: }
1453: return ($is_balancer,$otherserver);
1454: }
1455:
1.1172.2.12 raeburn 1456: sub check_balancer_result {
1457: my ($result,@hosts) = @_;
1458: my ($is_balancer,$currtargets,$currrules);
1459: if (ref($result) eq 'HASH') {
1460: if ($result->{'lonhost'} ne '') {
1461: my $currbalancer = $result->{'lonhost'};
1462: if (grep(/^\Q$currbalancer\E$/,@hosts)) {
1463: $is_balancer = 1;
1464: $currtargets = $result->{'targets'};
1465: $currrules = $result->{'rules'};
1466: }
1467: } else {
1468: foreach my $key (keys(%{$result})) {
1469: if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
1470: (ref($result->{$key}) eq 'HASH')) {
1471: $is_balancer = 1;
1472: $currrules = $result->{$key}{'rules'};
1473: $currtargets = $result->{$key}{'targets'};
1474: last;
1475: }
1476: }
1477: }
1478: }
1479: return ($is_balancer,$currtargets,$currrules);
1480: }
1481:
1.1129 raeburn 1482: sub get_loadbalancer_targets {
1483: my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
1484: my $offloadto;
1.1172.2.4 raeburn 1485: if ($rule_in_effect eq 'none') {
1486: return [$perlvar{'lonHostID'}];
1487: } elsif ($rule_in_effect eq '') {
1.1129 raeburn 1488: $offloadto = $currtargets;
1489: } else {
1490: if ($rule_in_effect eq 'homeserver') {
1491: my $homeserver = &homeserver($uname,$udom);
1492: if ($homeserver ne 'no_host') {
1493: $offloadto = [$homeserver];
1494: }
1495: } elsif ($rule_in_effect eq 'externalbalancer') {
1496: my %domconfig =
1497: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
1498: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
1499: if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
1500: if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
1501: $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
1502: }
1503: }
1504: } else {
1.1172.2.7 raeburn 1505: my %servers = &internet_dom_servers($udom);
1.1129 raeburn 1506: my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
1507: if (&hostname($remotebalancer) ne '') {
1508: $offloadto = [$remotebalancer];
1509: }
1510: }
1511: } elsif (&hostname($rule_in_effect) ne '') {
1512: $offloadto = [$rule_in_effect];
1513: }
1514: }
1515: return $offloadto;
1516: }
1517:
1.1127 raeburn 1518: sub internet_dom_servers {
1519: my ($dom) = @_;
1520: my (%uniqservers,%servers);
1521: my $primaryserver = &hostname(&domain($dom,'primary'));
1522: my @machinedoms = &machine_domains($primaryserver);
1523: foreach my $mdom (@machinedoms) {
1524: my %currservers = %servers;
1525: my %server = &get_servers($mdom);
1526: %servers = (%currservers,%server);
1527: }
1528: my %by_hostname;
1529: foreach my $id (keys(%servers)) {
1530: push(@{$by_hostname{$servers{$id}}},$id);
1531: }
1532: foreach my $hostname (sort(keys(%by_hostname))) {
1533: if (@{$by_hostname{$hostname}} > 1) {
1534: my $match = 0;
1535: foreach my $id (@{$by_hostname{$hostname}}) {
1536: if (&host_domain($id) eq $dom) {
1537: $uniqservers{$id} = $hostname;
1538: $match = 1;
1539: }
1540: }
1541: unless ($match) {
1542: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1543: }
1544: } else {
1545: $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
1546: }
1547: }
1548: return %uniqservers;
1549: }
1550:
1.1 albertel 1551: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1552:
1.599 albertel 1553: my %homecache;
1.1 albertel 1554: sub homeserver {
1.230 stredwic 1555: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1556: my $index="$uname:$udom";
1.426 albertel 1557:
1.599 albertel 1558: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1559:
1560: my %servers = &get_servers($udom,'library');
1561: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1562: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1563: exists($badServerCache{$tryserver}));
1.841 albertel 1564:
1565: my $answer=reply("home:$udom:$uname",$tryserver);
1566: if ($answer eq 'found') {
1567: delete($badServerCache{$tryserver});
1568: return $homecache{$index}=$tryserver;
1569: } elsif ($answer eq 'no_host') {
1570: $badServerCache{$tryserver}=1;
1571: }
1.1 albertel 1572: }
1573: return 'no_host';
1.70 www 1574: }
1575:
1576: # ------------------------------------- Find the usernames behind a list of IDs
1577:
1578: sub idget {
1579: my ($udom,@ids)=@_;
1580: my %returnhash=();
1581:
1.841 albertel 1582: my %servers = &get_servers($udom,'library');
1583: foreach my $tryserver (keys(%servers)) {
1.1172.2.73 raeburn 1584: my $idlist=join('&', map { &escape($_); } @ids);
1.841 albertel 1585: $idlist=~tr/A-Z/a-z/;
1586: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1587: my @answer=();
1588: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1589: @answer=split(/\&/,$reply);
1590: } ;
1591: my $i;
1592: for ($i=0;$i<=$#ids;$i++) {
1593: if ($answer[$i]) {
1.1172.2.73 raeburn 1594: $returnhash{$ids[$i]}=&unescape($answer[$i]);
1.841 albertel 1595: }
1596: }
1597: }
1.70 www 1598: return %returnhash;
1599: }
1600:
1601: # ------------------------------------- Find the IDs behind a list of usernames
1602:
1603: sub idrget {
1604: my ($udom,@unames)=@_;
1605: my %returnhash=();
1.800 albertel 1606: foreach my $uname (@unames) {
1607: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1608: }
1.70 www 1609: return %returnhash;
1610: }
1611:
1612: # ------------------------------- Store away a list of names and associated IDs
1613:
1614: sub idput {
1615: my ($udom,%ids)=@_;
1616: my %servers=();
1.800 albertel 1617: foreach my $uname (keys(%ids)) {
1618: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1619: my $uhom=&homeserver($uname,$udom);
1.70 www 1620: if ($uhom ne 'no_host') {
1.800 albertel 1621: my $id=&escape($ids{$uname});
1.70 www 1622: $id=~tr/A-Z/a-z/;
1.800 albertel 1623: my $esc_unam=&escape($uname);
1.70 www 1624: if ($servers{$uhom}) {
1.800 albertel 1625: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1626: } else {
1.800 albertel 1627: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1628: }
1629: }
1.191 harris41 1630: }
1.800 albertel 1631: foreach my $server (keys(%servers)) {
1632: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1633: }
1.344 www 1634: }
1635:
1.1172.2.30 raeburn 1636: # ---------------------------------------- Delete unwanted IDs from ids.db file
1637:
1638: sub iddel {
1639: my ($udom,$idshashref,$uhome)=@_;
1640: my %result=();
1641: unless (ref($idshashref) eq 'HASH') {
1642: return %result;
1643: }
1644: my %servers=();
1645: while (my ($id,$uname) = each(%{$idshashref})) {
1646: my $uhom;
1647: if ($uhome) {
1648: $uhom = $uhome;
1649: } else {
1650: $uhom=&homeserver($uname,$udom);
1651: }
1652: if ($uhom ne 'no_host') {
1653: if ($servers{$uhom}) {
1654: $servers{$uhom}.='&'.&escape($id);
1655: } else {
1656: $servers{$uhom}=&escape($id);
1657: }
1658: }
1659: }
1660: foreach my $server (keys(%servers)) {
1661: $result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
1662: }
1663: return %result;
1664: }
1665:
1.1023 raeburn 1666: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1667: sub dump_dom {
1.1165 droeschl 1668: my ($namespace, $udom, $regexp) = @_;
1669:
1670: $udom ||= $env{'user.domain'};
1671:
1672: return () unless $udom;
1673:
1674: return &dump($namespace, $udom, &get_domainconfiguser($udom), $regexp);
1.1012 raeburn 1675: }
1676:
1.1023 raeburn 1677: # ------------------------------------------ get items from domain db files
1.806 raeburn 1678:
1679: sub get_dom {
1.860 raeburn 1680: my ($namespace,$storearr,$udom,$uhome)=@_;
1.1172.2.57 raeburn 1681: return if ($udom eq 'public');
1.806 raeburn 1682: my $items='';
1683: foreach my $item (@$storearr) {
1684: $items.=&escape($item).'&';
1685: }
1686: $items=~s/\&$//;
1.860 raeburn 1687: if (!$udom) {
1688: $udom=$env{'user.domain'};
1.1172.2.57 raeburn 1689: return if ($udom eq 'public');
1.860 raeburn 1690: if (defined(&domain($udom,'primary'))) {
1691: $uhome=&domain($udom,'primary');
1692: } else {
1.874 albertel 1693: undef($uhome);
1.860 raeburn 1694: }
1695: } else {
1696: if (!$uhome) {
1697: if (defined(&domain($udom,'primary'))) {
1698: $uhome=&domain($udom,'primary');
1699: }
1700: }
1701: }
1702: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1703: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1704: my %returnhash;
1.875 albertel 1705: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1706: return %returnhash;
1707: }
1.806 raeburn 1708: my @pairs=split(/\&/,$rep);
1709: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1710: return @pairs;
1711: }
1712: my $i=0;
1713: foreach my $item (@$storearr) {
1714: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1715: $i++;
1716: }
1717: return %returnhash;
1718: } else {
1.880 banghart 1719: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1720: }
1721: }
1722:
1723: # -------------------------------------------- put items in domain db files
1724:
1725: sub put_dom {
1.860 raeburn 1726: my ($namespace,$storehash,$udom,$uhome)=@_;
1727: if (!$udom) {
1728: $udom=$env{'user.domain'};
1729: if (defined(&domain($udom,'primary'))) {
1730: $uhome=&domain($udom,'primary');
1731: } else {
1.874 albertel 1732: undef($uhome);
1.860 raeburn 1733: }
1734: } else {
1735: if (!$uhome) {
1736: if (defined(&domain($udom,'primary'))) {
1737: $uhome=&domain($udom,'primary');
1738: }
1739: }
1740: }
1741: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1742: my $items='';
1743: foreach my $item (keys(%$storehash)) {
1744: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1745: }
1746: $items=~s/\&$//;
1747: return &reply("putdom:$udom:$namespace:$items",$uhome);
1748: } else {
1.860 raeburn 1749: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1750: }
1751: }
1752:
1.1023 raeburn 1753: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1754: sub newput_dom {
1.1023 raeburn 1755: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1756: my $result;
1757: if (!$udom) {
1758: $udom=$env{'user.domain'};
1759: }
1.1023 raeburn 1760: if ($udom) {
1761: my $uname = &get_domainconfiguser($udom);
1762: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1763: }
1764: return $result;
1765: }
1766:
1.1023 raeburn 1767: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1768: sub del_dom {
1.1023 raeburn 1769: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1770: if (ref($storearr) eq 'ARRAY') {
1771: if (!$udom) {
1772: $udom=$env{'user.domain'};
1773: }
1.1023 raeburn 1774: if ($udom) {
1775: my $uname = &get_domainconfiguser($udom);
1776: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1777: }
1778: }
1779: }
1780:
1.1023 raeburn 1781: # ----------------------------------construct domainconfig user for a domain
1782: sub get_domainconfiguser {
1783: my ($udom) = @_;
1784: return $udom.'-domainconfig';
1785: }
1786:
1.837 raeburn 1787: sub retrieve_inst_usertypes {
1788: my ($udom) = @_;
1789: my (%returnhash,@order);
1.989 raeburn 1790: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1791: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1792: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1.1172.2.44 raeburn 1793: return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
1.989 raeburn 1794: } else {
1795: if (defined(&domain($udom,'primary'))) {
1796: my $uhome=&domain($udom,'primary');
1797: my $rep=&reply("inst_usertypes:$udom",$uhome);
1798: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1.1172.2.44 raeburn 1799: &logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
1.989 raeburn 1800: return (\%returnhash,\@order);
1801: }
1802: my ($hashitems,$orderitems) = split(/:/,$rep);
1803: my @pairs=split(/\&/,$hashitems);
1804: foreach my $item (@pairs) {
1805: my ($key,$value)=split(/=/,$item,2);
1806: $key = &unescape($key);
1807: next if ($key =~ /^error: 2 /);
1808: $returnhash{$key}=&thaw_unescape($value);
1809: }
1810: my @esc_order = split(/\&/,$orderitems);
1811: foreach my $item (@esc_order) {
1812: push(@order,&unescape($item));
1813: }
1814: } else {
1.1172.2.44 raeburn 1815: &logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
1.837 raeburn 1816: }
1.1172.2.44 raeburn 1817: return (\%returnhash,\@order);
1.837 raeburn 1818: }
1819: }
1820:
1.868 raeburn 1821: sub is_domainimage {
1822: my ($url) = @_;
1.1172.2.74 raeburn 1823: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+[^/]-) {
1.868 raeburn 1824: if (&domain($1) ne '') {
1825: return '1';
1826: }
1827: }
1828: return;
1829: }
1830:
1.899 raeburn 1831: sub inst_directory_query {
1832: my ($srch) = @_;
1833: my $udom = $srch->{'srchdomain'};
1834: my %results;
1835: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1836: my $outcome;
1.899 raeburn 1837: if ($homeserver ne '') {
1.904 albertel 1838: my $queryid=&reply("querysend:instdirsearch:".
1839: &escape($srch->{'srchby'}).':'.
1840: &escape($srch->{'srchterm'}).':'.
1841: &escape($srch->{'srchtype'}),$homeserver);
1842: my $host=&hostname($homeserver);
1843: if ($queryid !~/^\Q$host\E\_/) {
1.1172.2.96 raeburn 1844: &logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);
1.904 albertel 1845: return;
1846: }
1847: my $response = &get_query_reply($queryid);
1848: my $maxtries = 5;
1849: my $tries = 1;
1850: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1851: $response = &get_query_reply($queryid);
1852: $tries ++;
1853: }
1854:
1855: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1856: if ($response eq 'unavailable') {
1857: $outcome = $response;
1858: } else {
1859: $outcome = 'ok';
1860: my @matches = split(/\n/,$response);
1861: foreach my $match (@matches) {
1862: my ($key,$value) = split(/=/,$match);
1863: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1864: }
1.899 raeburn 1865: }
1866: }
1867: }
1.909 raeburn 1868: return ($outcome,%results);
1.899 raeburn 1869: }
1870:
1871: sub usersearch {
1872: my ($srch) = @_;
1873: my $dom = $srch->{'srchdomain'};
1874: my %results;
1875: my %libserv = &all_library();
1876: my $query = 'usersearch';
1877: foreach my $tryserver (keys(%libserv)) {
1878: if (&host_domain($tryserver) eq $dom) {
1879: my $host=&hostname($tryserver);
1880: my $queryid=
1.911 raeburn 1881: &reply("querysend:".&escape($query).':'.
1882: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1883: &escape($srch->{'srchtype'}).':'.
1884: &escape($srch->{'srchterm'}),$tryserver);
1885: if ($queryid !~/^\Q$host\E\_/) {
1886: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1887: next;
1.899 raeburn 1888: }
1889: my $reply = &get_query_reply($queryid);
1890: my $maxtries = 1;
1891: my $tries = 1;
1892: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1893: $reply = &get_query_reply($queryid);
1894: $tries ++;
1895: }
1896: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1897: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1898: } else {
1.911 raeburn 1899: my @matches;
1900: if ($reply =~ /\n/) {
1901: @matches = split(/\n/,$reply);
1902: } else {
1903: @matches = split(/\&/,$reply);
1904: }
1.899 raeburn 1905: foreach my $match (@matches) {
1906: my ($uname,$udom,%userhash);
1.911 raeburn 1907: foreach my $entry (split(/:/,$match)) {
1908: my ($key,$value) =
1909: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1910: $userhash{$key} = $value;
1911: if ($key eq 'username') {
1912: $uname = $value;
1913: } elsif ($key eq 'domain') {
1914: $udom = $value;
1.911 raeburn 1915: }
1.899 raeburn 1916: }
1917: $results{$uname.':'.$udom} = \%userhash;
1918: }
1919: }
1920: }
1921: }
1922: return %results;
1923: }
1924:
1.912 raeburn 1925: sub get_instuser {
1926: my ($udom,$uname,$id) = @_;
1927: my $homeserver = &domain($udom,'primary');
1928: my ($outcome,%results);
1929: if ($homeserver ne '') {
1930: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1931: &escape($id).':'.&escape($udom),$homeserver);
1932: my $host=&hostname($homeserver);
1933: if ($queryid !~/^\Q$host\E\_/) {
1934: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1935: return;
1936: }
1937: my $response = &get_query_reply($queryid);
1938: my $maxtries = 5;
1939: my $tries = 1;
1940: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1941: $response = &get_query_reply($queryid);
1942: $tries ++;
1943: }
1944: if (!&error($response) && $response ne 'refused') {
1945: if ($response eq 'unavailable') {
1946: $outcome = $response;
1947: } else {
1948: $outcome = 'ok';
1949: my @matches = split(/\n/,$response);
1950: foreach my $match (@matches) {
1951: my ($key,$value) = split(/=/,$match);
1952: $results{&unescape($key)} = &thaw_unescape($value);
1953: }
1954: }
1955: }
1956: }
1957: my %userinfo;
1958: if (ref($results{$uname}) eq 'HASH') {
1959: %userinfo = %{$results{$uname}};
1960: }
1961: return ($outcome,%userinfo);
1962: }
1963:
1.1172.2.69 raeburn 1964: sub get_multiple_instusers {
1965: my ($udom,$users,$caller) = @_;
1966: my ($outcome,$results);
1967: if (ref($users) eq 'HASH') {
1968: my $count = keys(%{$users});
1969: my $requested = &freeze_escape($users);
1970: my $homeserver = &domain($udom,'primary');
1971: if ($homeserver ne '') {
1972: my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
1973: my $host=&hostname($homeserver);
1974: if ($queryid !~/^\Q$host\E\_/) {
1975: &logthis('get_multiple_instusers invalid queryid: '.$queryid.
1976: ' for host: '.$homeserver.'in domain '.$udom);
1977: return ($outcome,$results);
1978: }
1979: my $response = &get_query_reply($queryid);
1980: my $maxtries = 5;
1981: if ($count > 100) {
1982: $maxtries = 1+int($count/20);
1983: }
1984: my $tries = 1;
1985: while (($response=~/^timeout/) && ($tries <= $maxtries)) {
1986: $response = &get_query_reply($queryid);
1987: $tries ++;
1988: }
1989: if ($response eq '') {
1990: $results = {};
1991: foreach my $key (keys(%{$users})) {
1992: my ($uname,$id);
1993: if ($caller eq 'id') {
1994: $id = $key;
1995: } else {
1996: $uname = $key;
1997: }
1998: my ($resp,%info) = &get_instuser($udom,$uname,$id);
1999: $outcome = $resp;
2000: if ($resp eq 'ok') {
2001: %{$results} = (%{$results}, %info);
2002: } else {
2003: last;
2004: }
2005: }
2006: } elsif(!&error($response) && ($response ne 'refused')) {
2007: if (($response eq 'unavailable') || ($response eq 'invalid') || ($response eq 'timeout')) {
2008: $outcome = $response;
2009: } else {
2010: ($outcome,my $userdata) = split(/=/,$response,2);
2011: if ($outcome eq 'ok') {
2012: $results = &thaw_unescape($userdata);
2013: }
2014: }
2015: }
2016: }
2017: }
2018: return ($outcome,$results);
2019: }
2020:
1.912 raeburn 2021: sub inst_rulecheck {
1.923 raeburn 2022: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 2023: my %returnhash;
2024: if ($udom ne '') {
2025: if (ref($rules) eq 'ARRAY') {
2026: @{$rules} = map {&escape($_);} (@{$rules});
2027: my $rulestr = join(':',@{$rules});
2028: my $homeserver=&domain($udom,'primary');
2029: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2030: my $response;
2031: if ($item eq 'username') {
2032: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
2033: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 2034: $homeserver));
1.923 raeburn 2035: } elsif ($item eq 'id') {
2036: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
2037: ':'.&escape($id).':'.$rulestr,
2038: $homeserver));
1.945 raeburn 2039: } elsif ($item eq 'selfcreate') {
2040: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 2041: &escape($udom).':'.&escape($uname).
2042: ':'.$rulestr,$homeserver));
1.923 raeburn 2043: }
1.912 raeburn 2044: if ($response ne 'refused') {
2045: my @pairs=split(/\&/,$response);
2046: foreach my $item (@pairs) {
2047: my ($key,$value)=split(/=/,$item,2);
2048: $key = &unescape($key);
2049: next if ($key =~ /^error: 2 /);
2050: $returnhash{$key}=&thaw_unescape($value);
2051: }
2052: }
2053: }
2054: }
2055: }
2056: return %returnhash;
2057: }
2058:
2059: sub inst_userrules {
1.923 raeburn 2060: my ($udom,$check) = @_;
1.912 raeburn 2061: my (%ruleshash,@ruleorder);
2062: if ($udom ne '') {
2063: my $homeserver=&domain($udom,'primary');
2064: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 2065: my $response;
2066: if ($check eq 'id') {
2067: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 2068: $homeserver);
1.943 raeburn 2069: } elsif ($check eq 'email') {
2070: $response=&reply('instemailrules:'.&escape($udom),
2071: $homeserver);
1.923 raeburn 2072: } else {
2073: $response=&reply('instuserrules:'.&escape($udom),
2074: $homeserver);
2075: }
1.912 raeburn 2076: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 2077: ($response ne 'unknown_cmd') &&
1.912 raeburn 2078: ($response ne 'no_such_host')) {
2079: my ($hashitems,$orderitems) = split(/:/,$response);
2080: my @pairs=split(/\&/,$hashitems);
2081: foreach my $item (@pairs) {
2082: my ($key,$value)=split(/=/,$item,2);
2083: $key = &unescape($key);
2084: next if ($key =~ /^error: 2 /);
2085: $ruleshash{$key}=&thaw_unescape($value);
2086: }
2087: my @esc_order = split(/\&/,$orderitems);
2088: foreach my $item (@esc_order) {
2089: push(@ruleorder,&unescape($item));
2090: }
2091: }
2092: }
2093: }
2094: return (\%ruleshash,\@ruleorder);
2095: }
2096:
1.976 raeburn 2097: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 2098:
2099: sub get_domain_defaults {
1.1172.2.35 raeburn 2100: my ($domain,$ignore_cache) = @_;
2101: return if (($domain eq '') || ($domain eq 'public'));
1.943 raeburn 2102: my $cachetime = 60*60*24;
1.1172.2.35 raeburn 2103: unless ($ignore_cache) {
2104: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
2105: if (defined($cached)) {
2106: if (ref($result) eq 'HASH') {
2107: return %{$result};
2108: }
1.943 raeburn 2109: }
2110: }
2111: my %domdefaults;
2112: my %domconfig =
1.989 raeburn 2113: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 2114: 'requestcourses','inststatus',
1.1172.2.9 raeburn 2115: 'coursedefaults','usersessions',
1.1172.2.46 raeburn 2116: 'requestauthor','selfenrollment',
1.1172.2.89 raeburn 2117: 'coursecategories','autoenroll',
2118: 'helpsettings'],$domain);
1.1172.2.41 raeburn 2119: my @coursetypes = ('official','unofficial','community','textbook');
1.943 raeburn 2120: if (ref($domconfig{'defaults'}) eq 'HASH') {
2121: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
2122: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
2123: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 2124: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 2125: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.1147 raeburn 2126: $domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
1.1172.2.91 raeburn 2127: $domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
2128: $domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
2129: $domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
1.943 raeburn 2130: } else {
2131: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
2132: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
2133: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
2134: }
1.976 raeburn 2135: if (ref($domconfig{'quotas'}) eq 'HASH') {
2136: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
2137: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
2138: } else {
2139: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1.1172.2.29 raeburn 2140: }
1.1172.2.6 raeburn 2141: my @usertools = ('aboutme','blog','webdav','portfolio');
1.976 raeburn 2142: foreach my $item (@usertools) {
2143: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
2144: $domdefaults{$item} = $domconfig{'quotas'}{$item};
2145: }
2146: }
1.1172.2.29 raeburn 2147: if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
2148: $domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
2149: }
1.976 raeburn 2150: }
1.985 raeburn 2151: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1172.2.37 raeburn 2152: foreach my $item ('official','unofficial','community','textbook') {
1.985 raeburn 2153: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
2154: }
2155: }
1.1172.2.9 raeburn 2156: if (ref($domconfig{'requestauthor'}) eq 'HASH') {
2157: $domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
2158: }
1.989 raeburn 2159: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1.1172.2.44 raeburn 2160: foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
1.989 raeburn 2161: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
2162: }
2163: }
1.1047 raeburn 2164: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1.1172.2.60 raeburn 2165: $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
2166: $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
2167: if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
2168: $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
2169: }
1.1172.2.41 raeburn 2170: foreach my $type (@coursetypes) {
2171: if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
2172: unless ($type eq 'community') {
2173: $domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
2174: }
2175: }
2176: if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
2177: $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
2178: }
1.1172.2.60 raeburn 2179: if ($domdefaults{'postsubmit'} eq 'on') {
2180: if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
2181: $domdefaults{$type.'postsubtimeout'} =
2182: $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
2183: }
2184: }
1.1172.2.30 raeburn 2185: }
1.1172.2.67 raeburn 2186: if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
2187: if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
2188: my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
2189: if (@clonecodes) {
2190: $domdefaults{'canclone'} = join('+',@clonecodes);
2191: }
2192: }
2193: } elsif ($domconfig{'coursedefaults'}{'canclone'}) {
2194: $domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
2195: }
1.1047 raeburn 2196: }
1.1073 raeburn 2197: if (ref($domconfig{'usersessions'}) eq 'HASH') {
2198: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
2199: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
2200: }
2201: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
2202: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
2203: }
1.1172.2.62 raeburn 2204: if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
2205: $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
2206: }
1.1073 raeburn 2207: }
1.1172.2.41 raeburn 2208: if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
2209: if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
2210: my @settings = ('types','registered','enroll_dates','access_dates','section',
2211: 'approval','limit');
2212: foreach my $type (@coursetypes) {
2213: if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
2214: my @mgrdc = ();
2215: foreach my $item (@settings) {
2216: if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
2217: push(@mgrdc,$item);
2218: }
2219: }
2220: if (@mgrdc) {
2221: $domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
2222: }
2223: }
2224: }
2225: }
2226: if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
2227: foreach my $type (@coursetypes) {
2228: if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
2229: foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
2230: $domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
2231: }
2232: }
2233: }
2234: }
2235: }
1.1172.2.46 raeburn 2236: if (ref($domconfig{'coursecategories'}) eq 'HASH') {
2237: $domdefaults{'catauth'} = 'std';
2238: $domdefaults{'catunauth'} = 'std';
2239: if ($domconfig{'coursecategories'}{'auth'}) {
2240: $domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
2241: }
2242: if ($domconfig{'coursecategories'}{'unauth'}) {
2243: $domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
2244: }
2245: }
1.1172.2.76 raeburn 2246: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
2247: $domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
2248: }
1.1172.2.89 raeburn 2249: if (ref($domconfig{'helpsettings'}) eq 'HASH') {
2250: $domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
2251: if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
2252: $domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
2253: }
2254: }
1.1172.2.23 raeburn 2255: &do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
1.943 raeburn 2256: return %domdefaults;
2257: }
2258:
1.344 www 2259: # --------------------------------------------------- Assign a key to a student
2260:
2261: sub assign_access_key {
1.364 www 2262: #
2263: # a valid key looks like uname:udom#comments
2264: # comments are being appended
2265: #
1.498 www 2266: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
2267: $kdom=
1.620 albertel 2268: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 2269: $knum=
1.620 albertel 2270: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 2271: $cdom=
1.620 albertel 2272: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2273: $cnum=
1.620 albertel 2274: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2275: $udom=$env{'user.name'} unless (defined($udom));
2276: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 2277: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 2278: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 2279: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 2280: # assigned to this person
2281: # - this should not happen,
1.345 www 2282: # unless something went wrong
2283: # the first time around
2284: # ready to assign
1.364 www 2285: $logentry=$1.'; '.$logentry;
1.496 www 2286: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 2287: $kdom,$knum) eq 'ok') {
1.345 www 2288: # key now belongs to user
1.346 www 2289: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 2290: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 2291: &appenv({'environment.'.$envkey => $ckey});
1.345 www 2292: return 'ok';
2293: } else {
2294: return
2295: 'error: Count not permanently assign key, will need to be re-entered later.';
2296: }
2297: } else {
2298: return 'error: Could not assign key, try again later.';
2299: }
1.364 www 2300: } elsif (!$existing{$ckey}) {
1.345 www 2301: # the key does not exist
2302: return 'error: The key does not exist';
2303: } else {
2304: # the key is somebody else's
2305: return 'error: The key is already in use';
2306: }
1.344 www 2307: }
2308:
1.364 www 2309: # ------------------------------------------ put an additional comment on a key
2310:
2311: sub comment_access_key {
2312: #
2313: # a valid key looks like uname:udom#comments
2314: # comments are being appended
2315: #
2316: my ($ckey,$cdom,$cnum,$logentry)=@_;
2317: $cdom=
1.620 albertel 2318: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 2319: $cnum=
1.620 albertel 2320: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 2321: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
2322: if ($existing{$ckey}) {
2323: $existing{$ckey}.='; '.$logentry;
2324: # ready to assign
1.367 www 2325: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 2326: $cdom,$cnum) eq 'ok') {
2327: return 'ok';
2328: } else {
2329: return 'error: Count not store comment.';
2330: }
2331: } else {
2332: # the key does not exist
2333: return 'error: The key does not exist';
2334: }
2335: }
2336:
1.344 www 2337: # ------------------------------------------------------ Generate a set of keys
2338:
2339: sub generate_access_keys {
1.364 www 2340: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 2341: $cdom=
1.620 albertel 2342: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2343: $cnum=
1.620 albertel 2344: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 2345: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 2346: unless (($cdom) && ($cnum)) { return 0; }
2347: if ($number>10000) { return 0; }
2348: sleep(2); # make sure don't get same seed twice
2349: srand(time()^($$+($$<<15))); # from "Programming Perl"
2350: my $total=0;
2351: for (my $i=1;$i<=$number;$i++) {
2352: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
2353: sprintf("%lx",int(100000*rand)).'-'.
2354: sprintf("%lx",int(100000*rand));
2355: $newkey=~s/1/g/g; # folks mix up 1 and l
2356: $newkey=~s/0/h/g; # and also 0 and O
2357: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
2358: if ($existing{$newkey}) {
2359: $i--;
2360: } else {
1.364 www 2361: if (&put('accesskeys',
2362: { $newkey => '# generated '.localtime().
1.620 albertel 2363: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 2364: '; '.$logentry },
2365: $cdom,$cnum) eq 'ok') {
1.344 www 2366: $total++;
2367: }
2368: }
2369: }
1.620 albertel 2370: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 2371: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
2372: return $total;
2373: }
2374:
2375: # ------------------------------------------------------- Validate an accesskey
2376:
2377: sub validate_access_key {
2378: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
2379: $cdom=
1.620 albertel 2380: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 2381: $cnum=
1.620 albertel 2382: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
2383: $udom=$env{'user.domain'} unless (defined($udom));
2384: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 2385: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 2386: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 2387: }
2388:
2389: # ------------------------------------- Find the section of student in a course
1.652 albertel 2390: sub devalidate_getsection_cache {
2391: my ($udom,$unam,$courseid)=@_;
2392: my $hashid="$udom:$unam:$courseid";
2393: &devalidate_cache_new('getsection',$hashid);
2394: }
1.298 matthew 2395:
1.815 albertel 2396: sub courseid_to_courseurl {
2397: my ($courseid) = @_;
2398: #already url style courseid
2399: return $courseid if ($courseid =~ m{^/});
2400:
2401: if (exists($env{'course.'.$courseid.'.num'})) {
2402: my $cnum = $env{'course.'.$courseid.'.num'};
2403: my $cdom = $env{'course.'.$courseid.'.domain'};
2404: return "/$cdom/$cnum";
2405: }
2406:
2407: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
2408: if (exists($courseinfo{'num'})) {
2409: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
2410: }
2411:
2412: return undef;
2413: }
2414:
1.298 matthew 2415: sub getsection {
2416: my ($udom,$unam,$courseid)=@_;
1.599 albertel 2417: my $cachetime=1800;
1.551 albertel 2418:
2419: my $hashid="$udom:$unam:$courseid";
1.599 albertel 2420: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 2421: if (defined($cached)) { return $result; }
2422:
1.298 matthew 2423: my %Pending;
2424: my %Expired;
2425: #
2426: # Each role can either have not started yet (pending), be active,
2427: # or have expired.
2428: #
2429: # If there is an active role, we are done.
2430: #
2431: # If there is more than one role which has not started yet,
2432: # choose the one which will start sooner
2433: # If there is one role which has not started yet, return it.
2434: #
2435: # If there is more than one expired role, choose the one which ended last.
2436: # If there is a role which has expired, return it.
2437: #
1.815 albertel 2438: $courseid = &courseid_to_courseurl($courseid);
1.1166 raeburn 2439: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1.817 raeburn 2440: foreach my $key (keys(%roleshash)) {
1.479 albertel 2441: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 2442: my $section=$1;
2443: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 2444: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 2445: my $now=time;
1.548 albertel 2446: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 2447: $Expired{$end}=$section;
2448: next;
2449: }
1.548 albertel 2450: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 2451: $Pending{$start}=$section;
2452: next;
2453: }
1.599 albertel 2454: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 2455: }
2456: #
2457: # Presumedly there will be few matching roles from the above
2458: # loop and the sorting time will be negligible.
2459: if (scalar(keys(%Pending))) {
2460: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 2461: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 2462: }
2463: if (scalar(keys(%Expired))) {
2464: my @sorted = sort {$a <=> $b} keys(%Expired);
2465: my $time = pop(@sorted);
1.599 albertel 2466: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 2467: }
1.599 albertel 2468: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 2469: }
1.70 www 2470:
1.599 albertel 2471: sub save_cache {
2472: &purge_remembered();
1.722 albertel 2473: #&Apache::loncommon::validate_page();
1.620 albertel 2474: undef(%env);
1.780 albertel 2475: undef($env_loaded);
1.599 albertel 2476: }
1.452 albertel 2477:
1.599 albertel 2478: my $to_remember=-1;
2479: my %remembered;
2480: my %accessed;
2481: my $kicks=0;
2482: my $hits=0;
1.849 albertel 2483: sub make_key {
2484: my ($name,$id) = @_;
1.872 albertel 2485: if (length($id) > 65
2486: && length(&escape($id)) > 200) {
2487: $id=length($id).':'.&Digest::MD5::md5_hex($id);
2488: }
1.849 albertel 2489: return &escape($name.':'.$id);
2490: }
2491:
1.599 albertel 2492: sub devalidate_cache_new {
2493: my ($name,$id,$debug) = @_;
2494: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.1172.2.81 raeburn 2495: my $remembered_id=$name.':'.$id;
1.849 albertel 2496: $id=&make_key($name,$id);
1.599 albertel 2497: $memcache->delete($id);
1.1172.2.81 raeburn 2498: delete($remembered{$remembered_id});
2499: delete($accessed{$remembered_id});
1.599 albertel 2500: }
2501:
2502: sub is_cached_new {
2503: my ($name,$id,$debug) = @_;
1.1172.2.81 raeburn 2504: my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) for
2505: # keys in %remembered hash, which persists for
2506: # duration of request (no restriction on key length).
2507: if (exists($remembered{$remembered_id})) {
2508: if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
2509: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2510: $hits++;
1.1172.2.81 raeburn 2511: return ($remembered{$remembered_id},1);
1.599 albertel 2512: }
1.1172.2.81 raeburn 2513: $id=&make_key($name,$id);
1.599 albertel 2514: my $value = $memcache->get($id);
2515: if (!(defined($value))) {
2516: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 2517: return (undef,undef);
1.416 albertel 2518: }
1.599 albertel 2519: if ($value eq '__undef__') {
2520: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
2521: $value=undef;
2522: }
1.1172.2.81 raeburn 2523: &make_room($remembered_id,$value,$debug);
1.599 albertel 2524: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
2525: return ($value,1);
2526: }
2527:
2528: sub do_cache_new {
2529: my ($name,$id,$value,$time,$debug) = @_;
1.1172.2.81 raeburn 2530: my $remembered_id=$name.':'.$id;
1.849 albertel 2531: $id=&make_key($name,$id);
1.599 albertel 2532: my $setvalue=$value;
2533: if (!defined($setvalue)) {
2534: $setvalue='__undef__';
2535: }
1.623 albertel 2536: if (!defined($time) ) {
2537: $time=600;
2538: }
1.599 albertel 2539: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 2540: my $result = $memcache->set($id,$setvalue,$time);
2541: if (! $result) {
1.872 albertel 2542: &logthis("caching of id -> $id failed");
1.910 albertel 2543: $memcache->disconnect_all();
1.872 albertel 2544: }
1.600 albertel 2545: # need to make a copy of $value
1.1172.2.81 raeburn 2546: &make_room($remembered_id,$value,$debug);
1.599 albertel 2547: return $value;
2548: }
2549:
2550: sub make_room {
1.1172.2.81 raeburn 2551: my ($remembered_id,$value,$debug)=@_;
1.919 albertel 2552:
1.1172.2.81 raeburn 2553: $remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)
1.919 albertel 2554: : $value;
1.599 albertel 2555: if ($to_remember<0) { return; }
1.1172.2.81 raeburn 2556: $accessed{$remembered_id}=[&gettimeofday()];
1.599 albertel 2557: if (scalar(keys(%remembered)) <= $to_remember) { return; }
2558: my $to_kick;
2559: my $max_time=0;
2560: foreach my $other (keys(%accessed)) {
2561: if (&tv_interval($accessed{$other}) > $max_time) {
2562: $to_kick=$other;
2563: $max_time=&tv_interval($accessed{$other});
2564: }
2565: }
2566: delete($remembered{$to_kick});
2567: delete($accessed{$to_kick});
2568: $kicks++;
2569: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 2570: return;
2571: }
2572:
1.599 albertel 2573: sub purge_remembered {
1.604 albertel 2574: #&logthis("Tossing ".scalar(keys(%remembered)));
2575: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 2576: undef(%remembered);
2577: undef(%accessed);
1.428 albertel 2578: }
1.70 www 2579: # ------------------------------------- Read an entry from a user's environment
2580:
2581: sub userenvironment {
2582: my ($udom,$unam,@what)=@_;
1.976 raeburn 2583: my $items;
2584: foreach my $item (@what) {
2585: $items.=&escape($item).'&';
2586: }
2587: $items=~s/\&$//;
1.70 www 2588: my %returnhash=();
1.1009 raeburn 2589: my $uhome = &homeserver($unam,$udom);
2590: unless ($uhome eq 'no_host') {
2591: my @answer=split(/\&/,
2592: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 2593: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
2594: return %returnhash;
2595: }
1.1009 raeburn 2596: my $i;
2597: for ($i=0;$i<=$#what;$i++) {
2598: $returnhash{$what[$i]}=&unescape($answer[$i]);
2599: }
1.70 www 2600: }
2601: return %returnhash;
1.1 albertel 2602: }
2603:
1.617 albertel 2604: # ---------------------------------------------------------- Get a studentphoto
2605: sub studentphoto {
2606: my ($udom,$unam,$ext) = @_;
2607: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 2608: if (defined($env{'request.course.id'})) {
1.708 raeburn 2609: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 2610: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
2611: return(&retrievestudentphoto($udom,$unam,$ext));
2612: } else {
2613: my ($result,$perm_reqd)=
1.707 albertel 2614: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2615: if ($result eq 'ok') {
2616: if (!($perm_reqd eq 'yes')) {
2617: return(&retrievestudentphoto($udom,$unam,$ext));
2618: }
2619: }
2620: }
2621: }
2622: } else {
2623: my ($result,$perm_reqd) =
1.707 albertel 2624: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 2625: if ($result eq 'ok') {
2626: if (!($perm_reqd eq 'yes')) {
2627: return(&retrievestudentphoto($udom,$unam,$ext));
2628: }
2629: }
2630: }
2631: return '/adm/lonKaputt/lonlogo_broken.gif';
2632: }
2633:
2634: sub retrievestudentphoto {
2635: my ($udom,$unam,$ext,$type) = @_;
2636: my $home=&Apache::lonnet::homeserver($unam,$udom);
2637: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
2638: if ($ret eq 'ok') {
2639: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
2640: if ($type eq 'thumbnail') {
2641: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
2642: }
2643: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
2644: return $tokenurl;
2645: } else {
2646: if ($type eq 'thumbnail') {
2647: return '/adm/lonKaputt/genericstudent_tn.gif';
2648: } else {
2649: return '/adm/lonKaputt/lonlogo_broken.gif';
2650: }
1.617 albertel 2651: }
2652: }
2653:
1.263 www 2654: # -------------------------------------------------------------------- New chat
2655:
2656: sub chatsend {
1.724 raeburn 2657: my ($newentry,$anon,$group)=@_;
1.620 albertel 2658: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
2659: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2660: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 2661: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 2662: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 2663: &escape($newentry)).':'.$group,$chome);
1.292 www 2664: }
2665:
2666: # ------------------------------------------ Find current version of a resource
2667:
2668: sub getversion {
2669: my $fname=&clutter(shift);
1.1172.2.10 raeburn 2670: unless ($fname=~m{^(/adm/wrapper|)/res/}) { return -1; }
1.292 www 2671: return ¤tversion(&filelocation('',$fname));
2672: }
2673:
2674: sub currentversion {
2675: my $fname=shift;
2676: my $author=$fname;
2677: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2678: my ($udom,$uname)=split(/\//,$author);
1.1112 www 2679: my $home=&homeserver($uname,$udom);
1.292 www 2680: if ($home eq 'no_host') {
2681: return -1;
2682: }
1.1112 www 2683: my $answer=&reply("currentversion:$fname",$home);
1.292 www 2684: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2685: return -1;
2686: }
1.1112 www 2687: return $answer;
1.263 www 2688: }
2689:
1.1111 www 2690: #
2691: # Return special version number of resource if set by override, empty otherwise
2692: #
2693: sub usedversion {
2694: my $fname=shift;
2695: unless ($fname) { $fname=$env{'request.uri'}; }
2696: my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
2697: if ($urlversion) { return $urlversion; }
2698: return '';
2699: }
2700:
1.1 albertel 2701: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 2702:
1.1 albertel 2703: sub subscribe {
2704: my $fname=shift;
1.761 raeburn 2705: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 2706: $fname=~s/[\n\r]//g;
1.1 albertel 2707: my $author=$fname;
2708: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2709: my ($udom,$uname)=split(/\//,$author);
2710: my $home=homeserver($uname,$udom);
1.335 albertel 2711: if ($home eq 'no_host') {
2712: return 'not_found';
1.1 albertel 2713: }
2714: my $answer=reply("sub:$fname",$home);
1.64 www 2715: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
2716: $answer.=' by '.$home;
2717: }
1.1 albertel 2718: return $answer;
2719: }
2720:
1.8 www 2721: # -------------------------------------------------------------- Replicate file
2722:
2723: sub repcopy {
2724: my $filename=shift;
1.23 www 2725: $filename=~s/\/+/\//g;
1.1142 raeburn 2726: my $londocroot = $perlvar{'lonDocRoot'};
2727: if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
1.1164 raeburn 2728: if ($filename=~m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.1142 raeburn 2729: if ($filename=~m{^\Q$londocroot/userfiles/\E} or
2730: $filename=~m{^/*(uploaded|editupload)/}) {
1.538 albertel 2731: return &repcopy_userfile($filename);
2732: }
1.532 albertel 2733: $filename=~s/[\n\r]//g;
1.8 www 2734: my $transname="$filename.in.transfer";
1.828 www 2735: # FIXME: this should flock
1.607 raeburn 2736: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2737: my $remoteurl=subscribe($filename);
1.64 www 2738: if ($remoteurl =~ /^con_lost by/) {
2739: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2740: return 'unavailable';
1.8 www 2741: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2742: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2743: return 'not_found';
1.64 www 2744: } elsif ($remoteurl =~ /^rejected by/) {
2745: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2746: return 'forbidden';
1.20 www 2747: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2748: return 'ok';
1.8 www 2749: } else {
1.290 www 2750: my $author=$filename;
2751: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2752: my ($udom,$uname)=split(/\//,$author);
2753: my $home=homeserver($uname,$udom);
2754: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2755: my @parts=split(/\//,$filename);
2756: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1.1142 raeburn 2757: if ($path ne "$londocroot/res") {
1.8 www 2758: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2759: return 'bad_request';
1.8 www 2760: }
2761: my $count;
2762: for ($count=5;$count<$#parts;$count++) {
2763: $path.="/$parts[$count]";
2764: if ((-e $path)!=1) {
2765: mkdir($path,0777);
2766: }
2767: }
2768: my $ua=new LWP::UserAgent;
2769: my $request=new HTTP::Request('GET',"$remoteurl");
2770: my $response=$ua->request($request,$transname);
2771: if ($response->is_error()) {
2772: unlink($transname);
2773: my $message=$response->status_line;
1.672 albertel 2774: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2775: ." LWP get: $message: $filename</font>");
1.607 raeburn 2776: return 'unavailable';
1.8 www 2777: } else {
1.16 www 2778: if ($remoteurl!~/\.meta$/) {
2779: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2780: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2781: if ($mresponse->is_error()) {
2782: unlink($filename.'.meta');
2783: &logthis(
1.672 albertel 2784: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2785: }
2786: }
1.8 www 2787: rename($transname,$filename);
1.607 raeburn 2788: return 'ok';
1.8 www 2789: }
1.290 www 2790: }
1.8 www 2791: }
1.330 www 2792: }
2793:
2794: # ------------------------------------------------ Get server side include body
2795: sub ssi_body {
1.381 albertel 2796: my ($filelink,%form)=@_;
1.606 matthew 2797: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2798: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2799: }
1.953 www 2800: my $output='';
2801: my $response;
1.980 raeburn 2802: if ($filelink=~/^https?\:/) {
1.954 raeburn 2803: ($output,$response)=&externalssi($filelink);
1.953 www 2804: } else {
1.1004 droeschl 2805: $filelink .= $filelink=~/\?/ ? '&' : '?';
2806: $filelink .= 'inhibitmenu=yes';
1.953 www 2807: ($output,$response)=&ssi($filelink,%form);
2808: }
1.778 albertel 2809: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2810: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2811: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2812: if (wantarray) {
2813: return ($output, $response);
2814: } else {
2815: return $output;
2816: }
1.8 www 2817: }
2818:
1.15 www 2819: # --------------------------------------------------------- Server Side Include
2820:
1.782 albertel 2821: sub absolute_url {
2822: my ($host_name) = @_;
2823: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2824: if ($host_name eq '') {
2825: $host_name = $ENV{'SERVER_NAME'};
2826: }
2827: return $protocol.$host_name;
2828: }
2829:
1.942 foxr 2830: #
2831: # Server side include.
2832: # Parameters:
2833: # fn Possibly encrypted resource name/id.
2834: # form Hash that describes how the rendering should be done
2835: # and other things.
1.944 foxr 2836: # Returns:
1.950 raeburn 2837: # Scalar context: The content of the response.
2838: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2839: #
1.15 www 2840: sub ssi {
2841:
1.944 foxr 2842: my ($fn,%form)=@_;
1.1172.2.100 raeburn 2843: my ($request,$response);
1.711 albertel 2844:
2845: $form{'no_update_last_known'}=1;
1.895 albertel 2846: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2847: if (%form) {
1.782 albertel 2848: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1172.2.58 raeburn 2849: $request->content(join('&',map {
2850: my $name = escape($_);
2851: "$name=" . ( ref($form{$_}) eq 'ARRAY'
2852: ? join("&$name=", map {escape($_) } @{$form{$_}})
2853: : &escape($form{$_}) );
2854: } keys(%form)));
1.23 www 2855: } else {
1.782 albertel 2856: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2857: }
2858:
1.15 www 2859: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1.1172.2.100 raeburn 2860:
1.1172.2.101! raeburn 2861: if (($env{'request.course.id'}) &&
! 2862: ($form{'grade_courseid'} eq $env{'request.course.id'}) &&
! 2863: ($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
! 2864: ($form{'grade_symb'} ne '') &&
! 2865: (&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
! 2866: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
1.1172.2.100 raeburn 2867: if (LWP::UserAgent->VERSION >= 5.834) {
2868: my $ua=new LWP::UserAgent;
2869: $ua->local_address('127.0.0.1');
2870: $response = $ua->request($request);
2871: } else {
2872: {
2873: require LWP::Protocol::http;
2874: local @LWP::Protocol::http::EXTRA_SOCK_OPTS = (LocalAddr => '127.0.0.1');
2875: my $ua=new LWP::UserAgent;
2876: $response = $ua->request($request);
2877: @LWP::Protocol::http::EXTRA_SOCK_OPTS = ();
2878: }
2879: }
2880: } else {
2881: my $ua=new LWP::UserAgent;
2882: $response = $ua->request($request);
2883: }
1.944 foxr 2884: if (wantarray) {
1.1172.2.3 raeburn 2885: return ($response->content, $response);
1.944 foxr 2886: } else {
1.1172.2.3 raeburn 2887: return $response->content;
1.942 foxr 2888: }
1.324 www 2889: }
2890:
2891: sub externalssi {
2892: my ($url)=@_;
2893: my $ua=new LWP::UserAgent;
2894: my $request=new HTTP::Request('GET',$url);
2895: my $response=$ua->request($request);
1.954 raeburn 2896: if (wantarray) {
2897: return ($response->content, $response);
2898: } else {
2899: return $response->content;
2900: }
1.15 www 2901: }
1.254 www 2902:
1.1172.2.98 raeburn 2903: # If the local copy of a replicated resource is outdated, trigger a
2904: # connection from the homeserver to flush the delayed queue. If no update
2905: # happens, remove local copies of outdated resource (and corresponding
2906: # metadata file).
2907:
2908: sub remove_stale_resfile {
2909: my ($url) = @_;
2910: my $removed;
2911: if ($url=~m{^/res/($match_domain)/($match_username)/}) {
2912: my $audom = $1;
2913: my $auname = $2;
2914: unless (($url =~ /\.\d+\.\w+$/) || ($url =~ m{^/res/lib/templates/})) {
2915: my $homeserver = &homeserver($auname,$audom);
2916: unless (($homeserver eq 'no_host') ||
2917: (grep { $_ eq $homeserver } ¤t_machine_ids())) {
2918: my $fname = &filelocation('',$url);
2919: if (-e $fname) {
2920: my $ua=new LWP::UserAgent;
2921: $ua->timeout(5);
2922: my $protocol = $protocol{$homeserver};
2923: $protocol = 'http' if ($protocol ne 'https');
2924: my $hostname = &hostname($homeserver);
2925: if ($hostname) {
2926: my $uri = $protocol.'://'.$hostname.'/raw/'.&declutter($url);
2927: my $request=new HTTP::Request('HEAD',$uri);
2928: my $response=$ua->request($request);
2929: if ($response->is_success()) {
2930: my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
2931: my $locmodtime = (stat($fname))[9];
2932: if ($locmodtime < $remmodtime) {
2933: my $stale;
2934: my $answer = &reply('pong',$homeserver);
2935: if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
2936: sleep(0.2);
2937: $locmodtime = (stat($fname))[9];
2938: if ($locmodtime < $remmodtime) {
2939: my $posstransfer = $fname.'.in.transfer';
2940: if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
2941: $removed = 1;
2942: } else {
2943: $stale = 1;
2944: }
2945: } else {
2946: $removed = 1;
2947: }
2948: } else {
2949: $stale = 1;
2950: }
2951: if ($stale) {
2952: unlink($fname);
2953: if ($uri!~/\.meta$/) {
2954: unlink($fname.'.meta');
2955: }
2956: &reply("unsub:$fname",$homeserver);
2957: $removed = 1;
2958: }
2959: }
2960: }
2961: }
2962: }
2963: }
2964: }
2965: }
2966: return $removed;
2967: }
2968:
1.492 albertel 2969: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2970:
2971: sub allowuploaded {
2972: my ($srcurl,$url)=@_;
2973: $url=&clutter(&declutter($url));
2974: my $dir=$url;
2975: $dir=~s/\/[^\/]+$//;
2976: my %httpref=();
2977: my $httpurl=&hreflocation('',$url);
2978: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2979: &Apache::lonnet::appenv(\%httpref);
1.254 www 2980: }
1.477 raeburn 2981:
1.1172.2.13 raeburn 2982: #
2983: # Determine if the current user should be able to edit a particular resource,
2984: # when viewing in course context.
2985: # (a) When viewing resource used to determine if "Edit" item is included in
2986: # Functions.
2987: # (b) When displaying folder contents in course editor, used to determine if
2988: # "Edit" link will be displayed alongside resource.
2989: #
2990: # input: six args -- filename (decluttered), course number, course domain,
2991: # url, symb (if registered) and group (if this is a group
2992: # item -- e.g., bulletin board, group page etc.).
2993: # output: array of five scalars --
2994: # $cfile -- url for file editing if editable on current server
2995: # $home -- homeserver of resource (i.e., for author if published,
2996: # or course if uploaded.).
2997: # $switchserver -- 1 if server switch will be needed.
2998: # $forceedit -- 1 if icon/link should be to go to edit mode
2999: # $forceview -- 1 if icon/link should be to go to view mode
3000: #
3001:
3002: sub can_edit_resource {
3003: my ($file,$cnum,$cdom,$resurl,$symb,$group) = @_;
3004: my ($cfile,$home,$switchserver,$forceedit,$forceview,$uploaded,$incourse);
3005: #
3006: # For aboutme pages user can only edit his/her own.
3007: #
3008: if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
3009: my ($sdom,$sname) = ($1,$2);
3010: if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
3011: $home = $env{'user.home'};
3012: $cfile = $resurl;
3013: if ($env{'form.forceedit'}) {
3014: $forceview = 1;
3015: } else {
3016: $forceedit = 1;
3017: }
3018: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3019: } else {
3020: return;
3021: }
3022: }
3023:
3024: if ($env{'request.course.id'}) {
3025: my $crsedit = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
3026: if ($group ne '') {
3027: # if this is a group homepage or group bulletin board, check group privs
3028: my $allowed = 0;
3029: if ($resurl =~ m{^/?adm/$cdom/$cnum/$group/smppg$}) {
3030: if ((&allowed('mdg',$env{'request.course.id'}.
3031: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3032: (&allowed('mgh',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3033: $allowed = 1;
3034: }
3035: } elsif ($resurl =~ m{^/?adm/$cdom/$cnum/\d+/bulletinboard$}) {
3036: if ((&allowed('mdg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) ||
3037: (&allowed('cgb',$env{'request.course.id'}.'/'.$group)) || $crsedit) {
3038: $allowed = 1;
3039: }
3040: }
3041: if ($allowed) {
3042: $home=&homeserver($cnum,$cdom);
3043: if ($env{'form.forceedit'}) {
3044: $forceview = 1;
3045: } else {
3046: $forceedit = 1;
3047: }
3048: $cfile = $resurl;
3049: } else {
3050: return;
3051: }
3052: } else {
1.1172.2.15 raeburn 3053: if ($resurl =~ m{^/?adm/viewclasslist$}) {
3054: unless (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
3055: return;
3056: }
3057: } elsif (!$crsedit) {
1.1172.2.13 raeburn 3058: #
3059: # No edit allowed where CC has switched to student role.
3060: #
3061: return;
3062: }
3063: }
3064: }
3065:
3066: if ($file ne '') {
3067: if (($cnum =~ /$match_courseid/) && ($cdom =~ /$match_domain/)) {
3068: if (&is_course_upload($file,$cnum,$cdom)) {
3069: $uploaded = 1;
3070: $incourse = 1;
3071: if ($file =~/\.(htm|html|css|js|txt)$/) {
3072: $cfile = &hreflocation('',$file);
3073: if ($env{'form.forceedit'}) {
3074: $forceview = 1;
3075: } else {
3076: $forceedit = 1;
3077: }
3078: }
3079: } elsif ($resurl =~ m{^/public/$cdom/$cnum/syllabus}) {
3080: $incourse = 1;
3081: if ($env{'form.forceedit'}) {
3082: $forceview = 1;
3083: } else {
3084: $forceedit = 1;
3085: }
3086: $cfile = $resurl;
3087: } elsif (($resurl ne '') && (&is_on_map($resurl))) {
3088: if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg|bulletinboard$}) {
3089: $incourse = 1;
3090: if ($env{'form.forceedit'}) {
3091: $forceview = 1;
3092: } else {
3093: $forceedit = 1;
3094: }
3095: $cfile = $resurl;
3096: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem') {
3097: $incourse = 1;
3098: $cfile = $resurl.'/smpedit';
3099: } elsif ($resurl =~ m{^/adm/wrapper/ext/}) {
3100: $incourse = 1;
3101: if ($env{'form.forceedit'}) {
3102: $forceview = 1;
3103: } else {
3104: $forceedit = 1;
3105: }
3106: $cfile = $resurl;
1.1172.2.15 raeburn 3107: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3108: $incourse = 1;
3109: if ($env{'form.forceedit'}) {
3110: $forceview = 1;
3111: } else {
3112: $forceedit = 1;
3113: }
3114: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1172.2.13 raeburn 3115: }
3116: } elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
3117: my $template = '/res/lib/templates/simpleproblem.problem';
3118: if (&is_on_map($template)) {
3119: $incourse = 1;
3120: $forceview = 1;
3121: $cfile = $template;
3122: }
3123: } elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
3124: $incourse = 1;
3125: if ($env{'form.forceedit'}) {
3126: $forceview = 1;
3127: } else {
3128: $forceedit = 1;
3129: }
3130: $cfile = $resurl;
3131: } elsif (($resurl eq '/adm/extresedit') && ($symb || $env{'form.folderpath'})) {
3132: $incourse = 1;
3133: $forceview = 1;
3134: if ($symb) {
3135: my ($map,$id,$res)=&decode_symb($symb);
3136: $env{'request.symb'} = $symb;
3137: $cfile = &clutter($res);
3138: } else {
3139: $cfile = $env{'form.suppurl'};
3140: $cfile =~ s{^http://}{};
3141: $cfile = '/adm/wrapper/ext/'.$cfile;
3142: }
1.1172.2.31 raeburn 3143: } elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
3144: if ($env{'form.forceedit'}) {
3145: $forceview = 1;
3146: } else {
3147: $forceedit = 1;
3148: }
3149: $cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
1.1172.2.13 raeburn 3150: }
3151: }
3152: if ($uploaded || $incourse) {
3153: $home=&homeserver($cnum,$cdom);
1.1172.2.14 raeburn 3154: } elsif ($file !~ m{/$}) {
1.1172.2.13 raeburn 3155: $file=~s{^(priv/$match_domain/$match_username)}{/$1};
3156: $file=~s{^($match_domain/$match_username)}{/priv/$1};
3157: # Check that the user has permission to edit this resource
3158: my $setpriv = 1;
3159: my ($cfuname,$cfudom)=&constructaccess($file,$setpriv);
3160: if (defined($cfudom)) {
3161: $home=&homeserver($cfuname,$cfudom);
3162: $cfile=$file;
3163: }
3164: }
3165: if (($cfile ne '') && (!$incourse || $uploaded) &&
3166: (($home ne '') && ($home ne 'no_host'))) {
3167: my @ids=¤t_machine_ids();
3168: unless (grep(/^\Q$home\E$/,@ids)) {
3169: $switchserver=1;
3170: }
3171: }
3172: }
3173: return ($cfile,$home,$switchserver,$forceedit,$forceview);
3174: }
3175:
3176: sub is_course_upload {
3177: my ($file,$cnum,$cdom) = @_;
3178: my $uploadpath = &LONCAPA::propath($cdom,$cnum);
3179: $uploadpath =~ s{^\/}{};
3180: if (($file =~ m{^\Q$uploadpath\E/userfiles/(docs|supplemental)/}) ||
3181: ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/(docs|supplemental)/})) {
3182: return 1;
3183: }
3184: return;
3185: }
3186:
3187: sub in_course {
3188: my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
3189: if ($hideprivileged) {
3190: my $skipuser;
1.1172.2.23 raeburn 3191: my %coursehash = &coursedescription($cdom.'_'.$cnum);
3192: my @possdoms = ($cdom);
3193: if ($coursehash{'checkforpriv'}) {
3194: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
3195: }
3196: if (&privileged($uname,$udom,\@possdoms)) {
1.1172.2.13 raeburn 3197: $skipuser = 1;
3198: if ($coursehash{'nothideprivileged'}) {
3199: foreach my $item (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3200: my $user;
3201: if ($item =~ /:/) {
3202: $user = $item;
3203: } else {
3204: $user = join(':',split(/[\@]/,$item));
3205: }
3206: if ($user eq $uname.':'.$udom) {
3207: undef($skipuser);
3208: last;
3209: }
3210: }
3211: }
3212: if ($skipuser) {
3213: return 0;
3214: }
3215: }
3216: }
3217: $type ||= 'any';
3218: if (!defined($cdom) || !defined($cnum)) {
3219: my $cid = $env{'request.course.id'};
3220: $cdom = $env{'course.'.$cid.'.domain'};
3221: $cnum = $env{'course.'.$cid.'.num'};
3222: }
3223: my $typesref;
3224: if (($type eq 'any') || ($type eq 'all')) {
3225: $typesref = ['active','previous','future'];
3226: } elsif ($type eq 'previous' || $type eq 'future') {
3227: $typesref = [$type];
3228: }
3229: my %roles = &get_my_roles($uname,$udom,'userroles',
3230: $typesref,undef,[$cdom]);
3231: my ($tmp) = keys(%roles);
3232: return 0 if ($tmp =~ /^(con_lost|error|no_such_host)/i);
3233: my @course_roles = grep(/^\Q$cnum\E:\Q$cdom\E:/, keys(%roles));
3234: if (@course_roles > 0) {
3235: return 1;
3236: }
3237: return 0;
3238: }
3239:
1.478 albertel 3240: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 3241: # input: action, courseID, current domain, intended
1.637 raeburn 3242: # path to file, source of file, instruction to parse file for objects,
3243: # ref to hash for embedded objects,
3244: # ref to hash for codebase of java objects.
1.1095 raeburn 3245: # reference to scalar to accommodate mime type determined
3246: # from File::MMagic if $parser = parse.
1.637 raeburn 3247: #
1.485 raeburn 3248: # output: url to file (if action was uploaddoc),
3249: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 3250: #
1.478 albertel 3251: # Allows directory structure to be used within lonUsers/../userfiles/ for a
3252: # course.
1.477 raeburn 3253: #
1.478 albertel 3254: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3255: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
3256: # course's home server.
1.477 raeburn 3257: #
1.478 albertel 3258: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
3259: # be copied from $source (current location) to
3260: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3261: # and will then be copied to
3262: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
3263: # course's home server.
1.485 raeburn 3264: #
1.481 raeburn 3265: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 3266: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 3267: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
3268: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
3269: # in course's home server.
1.637 raeburn 3270: #
1.477 raeburn 3271:
3272: sub process_coursefile {
1.1095 raeburn 3273: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase,
3274: $mimetype)=@_;
1.477 raeburn 3275: my $fetchresult;
1.638 albertel 3276: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 3277: if ($action eq 'propagate') {
1.638 albertel 3278: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
3279: $home);
1.481 raeburn 3280: } else {
1.477 raeburn 3281: my $fpath = '';
3282: my $fname = $file;
1.478 albertel 3283: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 3284: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 3285: my $filepath = &build_filepath($fpath);
1.481 raeburn 3286: if ($action eq 'copy') {
3287: if ($source eq '') {
3288: $fetchresult = 'no source file';
3289: return $fetchresult;
3290: } else {
3291: my $destination = $filepath.'/'.$fname;
3292: rename($source,$destination);
3293: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3294: $home);
1.481 raeburn 3295: }
3296: } elsif ($action eq 'uploaddoc') {
1.1172.2.96 raeburn 3297: open(my $fh,'>',$filepath.'/'.$fname);
1.620 albertel 3298: print $fh $env{'form.'.$source};
1.481 raeburn 3299: close($fh);
1.637 raeburn 3300: if ($parser eq 'parse') {
1.1024 raeburn 3301: my $mm = new File::MMagic;
1.1095 raeburn 3302: my $type = $mm->checktype_filename($filepath.'/'.$fname);
3303: if ($type eq 'text/html') {
1.1024 raeburn 3304: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
3305: unless ($parse_result eq 'ok') {
3306: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
3307: }
1.637 raeburn 3308: }
1.1095 raeburn 3309: if (ref($mimetype)) {
3310: $$mimetype = $type;
3311: }
1.637 raeburn 3312: }
1.477 raeburn 3313: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3314: $home);
1.481 raeburn 3315: if ($fetchresult eq 'ok') {
3316: return '/uploaded/'.$fpath.'/'.$fname;
3317: } else {
3318: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3319: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 3320: return '/adm/notfound.html';
3321: }
1.477 raeburn 3322: }
3323: }
1.485 raeburn 3324: unless ( $fetchresult eq 'ok') {
1.477 raeburn 3325: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 3326: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 3327: }
3328: return $fetchresult;
3329: }
3330:
1.637 raeburn 3331: sub build_filepath {
3332: my ($fpath) = @_;
3333: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
3334: unless ($fpath eq '') {
3335: my @parts=split('/',$fpath);
3336: foreach my $part (@parts) {
3337: $filepath.= '/'.$part;
3338: if ((-e $filepath)!=1) {
3339: mkdir($filepath,0777);
3340: }
3341: }
3342: }
3343: return $filepath;
3344: }
3345:
3346: sub store_edited_file {
1.638 albertel 3347: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 3348: my $file = $primary_url;
3349: $file =~ s#^/uploaded/$docudom/$docuname/##;
3350: my $fpath = '';
3351: my $fname = $file;
3352: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
3353: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
3354: my $filepath = &build_filepath($fpath);
1.1172.2.96 raeburn 3355: open(my $fh,'>',$filepath.'/'.$fname);
1.637 raeburn 3356: print $fh $content;
3357: close($fh);
1.638 albertel 3358: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 3359: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 3360: $home);
1.637 raeburn 3361: if ($$fetchresult eq 'ok') {
3362: return '/uploaded/'.$fpath.'/'.$fname;
3363: } else {
1.638 albertel 3364: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
3365: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 3366: return '/adm/notfound.html';
3367: }
3368: }
3369:
1.531 albertel 3370: sub clean_filename {
1.831 albertel 3371: my ($fname,$args)=@_;
1.315 www 3372: # Replace Windows backslashes by forward slashes
1.257 www 3373: $fname=~s/\\/\//g;
1.831 albertel 3374: if (!$args->{'keep_path'}) {
3375: # Get rid of everything but the actual filename
3376: $fname=~s/^.*\/([^\/]+)$/$1/;
3377: }
1.315 www 3378: # Replace spaces by underscores
3379: $fname=~s/\s+/\_/g;
3380: # Replace all other weird characters by nothing
1.831 albertel 3381: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 3382: # Replace all .\d. sequences with _\d. so they no longer look like version
3383: # numbers
3384: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 3385: return $fname;
3386: }
1.1051 raeburn 3387: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
3388: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
3389: # image with the same aspect ratio as the original, but with dimensions which do
3390: # not exceed $resizewidth and $resizeheight.
3391:
1.984 neumanie 3392: sub resizeImage {
1.1051 raeburn 3393: my ($img_path,$resizewidth,$resizeheight) = @_;
3394: my $ima = Image::Magick->new;
3395: my $resized;
3396: if (-e $img_path) {
3397: $ima->Read($img_path);
3398: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
3399: my $width = $ima->Get('width');
3400: my $height = $ima->Get('height');
3401: if ($width > $resizewidth) {
3402: my $factor = $width/$resizewidth;
3403: my $newheight = $height/$factor;
3404: $ima->Scale(width=>$resizewidth,height=>$newheight);
3405: $resized = 1;
3406: }
3407: }
3408: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
3409: my $width = $ima->Get('width');
3410: my $height = $ima->Get('height');
3411: if ($height > $resizeheight) {
3412: my $factor = $height/$resizeheight;
3413: my $newwidth = $width/$factor;
3414: $ima->Scale(width=>$newwidth,height=>$resizeheight);
3415: $resized = 1;
3416: }
3417: }
3418: if ($resized) {
3419: $ima->Write($img_path);
3420: }
3421: }
3422: return;
1.977 amueller 3423: }
3424:
1.608 albertel 3425: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 3426: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.1093 raeburn 3427: # the desired filename is in $env{"form.$formname.filename"}
1.1090 raeburn 3428: # $context - possible values: coursedoc, existingfile, overwrite,
3429: # canceloverwrite, or ''.
3430: # if 'coursedoc': upload to the current course
3431: # if 'existingfile': write file to tmp/overwrites directory
3432: # if 'canceloverwrite': delete file written to tmp/overwrites directory
3433: # $context is passed as argument to &finishuserfileupload
1.686 albertel 3434: # $subdir - directory in userfile to store the file into
1.858 raeburn 3435: # $parser - instruction to parse file for objects ($parser = parse)
3436: # $allfiles - reference to hash for embedded objects
3437: # $codebase - reference to hash for codebase of java objects
3438: # $desuname - username for permanent storage of uploaded file
3439: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 3440: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
3441: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 3442: # $resizewidth - width (pixels) to which to resize uploaded image
3443: # $resizeheight - height (pixels) to which to resize uploaded image
1.1095 raeburn 3444: # $mimetype - reference to scalar to accommodate mime type determined
1.1152 raeburn 3445: # from File::MMagic.
1.858 raeburn 3446: #
1.686 albertel 3447: # output: url of file in userspace, or error: <message>
3448: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 3449:
1.531 albertel 3450: sub userfileupload {
1.1090 raeburn 3451: my ($formname,$context,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1095 raeburn 3452: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight,$mimetype)=@_;
1.531 albertel 3453: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 3454: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 3455: $fname=&clean_filename($fname);
1.1090 raeburn 3456: # See if there is anything left
1.257 www 3457: unless ($fname) { return 'error: no uploaded file'; }
1.1090 raeburn 3458: # Files uploaded to help request form, or uploaded to "create course" page are handled differently
3459: if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) ||
3460: (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) ||
3461: ($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
1.523 raeburn 3462: my $now = time;
1.1090 raeburn 3463: my $filepath;
1.1095 raeburn 3464: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) {
1.1090 raeburn 3465: $filepath = 'tmp/helprequests/'.$now;
3466: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) {
3467: $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
3468: '_'.$env{'user.domain'}.'/pending';
3469: } elsif (($context eq 'existingfile') || ($context eq 'canceloverwrite')) {
3470: my ($docuname,$docudom);
1.1172.2.96 raeburn 3471: if ($destudom =~ /^$match_domain$/) {
1.1090 raeburn 3472: $docudom = $destudom;
3473: } else {
3474: $docudom = $env{'user.domain'};
3475: }
1.1172.2.96 raeburn 3476: if ($destuname =~ /^$match_username$/) {
1.1090 raeburn 3477: $docuname = $destuname;
3478: } else {
3479: $docuname = $env{'user.name'};
3480: }
3481: if (exists($env{'form.group'})) {
3482: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3483: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3484: }
3485: $filepath = 'tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$subdir;
3486: if ($context eq 'canceloverwrite') {
3487: my $tempfile = $perlvar{'lonDaemons'}.'/'.$filepath.'/'.$fname;
3488: if (-e $tempfile) {
3489: my @info = stat($tempfile);
3490: if ($info[9] eq $env{'form.timestamp'}) {
3491: unlink($tempfile);
3492: }
3493: }
3494: return;
1.523 raeburn 3495: }
3496: }
1.1090 raeburn 3497: # Create the directory if not present
1.741 raeburn 3498: my @parts=split(/\//,$filepath);
3499: my $fullpath = $perlvar{'lonDaemons'};
3500: for (my $i=0;$i<@parts;$i++) {
3501: $fullpath .= '/'.$parts[$i];
3502: if ((-e $fullpath)!=1) {
3503: mkdir($fullpath,0777);
3504: }
3505: }
1.1172.2.96 raeburn 3506: open(my $fh,'>',$fullpath.'/'.$fname);
1.741 raeburn 3507: print $fh $env{'form.'.$formname};
3508: close($fh);
1.1090 raeburn 3509: if ($context eq 'existingfile') {
3510: my @info = stat($fullpath.'/'.$fname);
3511: return ($fullpath.'/'.$fname,$info[9]);
3512: } else {
3513: return $fullpath.'/'.$fname;
3514: }
1.523 raeburn 3515: }
1.995 raeburn 3516: if ($subdir eq 'scantron') {
3517: $fname = 'scantron_orig_'.$fname;
1.1093 raeburn 3518: } else {
1.995 raeburn 3519: $fname="$subdir/$fname";
3520: }
1.1090 raeburn 3521: if ($context eq 'coursedoc') {
1.638 albertel 3522: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3523: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 3524: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 3525: return &finishuserfileupload($docuname,$docudom,
3526: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 3527: $codebase,$thumbwidth,$thumbheight,
1.1095 raeburn 3528: $resizewidth,$resizeheight,$context,$mimetype);
1.481 raeburn 3529: } else {
1.1172.2.21 raeburn 3530: if ($env{'form.folder'}) {
3531: $fname=$env{'form.folder'}.'/'.$fname;
3532: }
1.638 albertel 3533: return &process_coursefile('uploaddoc',$docuname,$docudom,
3534: $fname,$formname,$parser,
1.1095 raeburn 3535: $allfiles,$codebase,$mimetype);
1.481 raeburn 3536: }
1.719 banghart 3537: } elsif (defined($destuname)) {
3538: my $docuname=$destuname;
3539: my $docudom=$destudom;
1.860 raeburn 3540: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3541: $parser,$allfiles,$codebase,
1.1051 raeburn 3542: $thumbwidth,$thumbheight,
1.1095 raeburn 3543: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3544: } else {
1.638 albertel 3545: my $docuname=$env{'user.name'};
3546: my $docudom=$env{'user.domain'};
1.1172.2.23 raeburn 3547: if ((exists($env{'form.group'})) || ($context eq 'syllabus')) {
1.714 raeburn 3548: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
3549: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
3550: }
1.860 raeburn 3551: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
3552: $parser,$allfiles,$codebase,
1.1051 raeburn 3553: $thumbwidth,$thumbheight,
1.1095 raeburn 3554: $resizewidth,$resizeheight,$context,$mimetype);
1.259 www 3555: }
1.271 www 3556: }
3557:
3558: sub finishuserfileupload {
1.860 raeburn 3559: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1095 raeburn 3560: $thumbwidth,$thumbheight,$resizewidth,$resizeheight,$context,$mimetype) = @_;
1.477 raeburn 3561: my $path=$docudom.'/'.$docuname.'/';
1.258 www 3562: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 3563:
1.860 raeburn 3564: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 3565: $file=$fname;
3566: if ($fname=~m|/|) {
3567: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
3568: $path.=$fnamepath.'/';
3569: }
1.259 www 3570: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 3571: my $count;
3572: for ($count=4;$count<=$#parts;$count++) {
3573: $filepath.="/$parts[$count]";
3574: if ((-e $filepath)!=1) {
3575: mkdir($filepath,0777);
3576: }
3577: }
1.984 neumanie 3578:
1.258 www 3579: # Save the file
3580: {
1.1172.2.96 raeburn 3581: if (!open(FH,'>',$filepath.'/'.$file)) {
1.701 albertel 3582: &logthis('Failed to create '.$filepath.'/'.$file);
3583: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
3584: return '/adm/notfound.html';
3585: }
1.1090 raeburn 3586: if ($context eq 'overwrite') {
1.1117 foxr 3587: my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
1.1090 raeburn 3588: my $target = $filepath.'/'.$file;
3589: if (-e $source) {
3590: my @info = stat($source);
3591: if ($info[9] eq $env{'form.timestamp'}) {
3592: unless (&File::Copy::move($source,$target)) {
3593: &logthis('Failed to overwrite '.$filepath.'/'.$file);
3594: return "Moving from $source failed";
3595: }
3596: } else {
3597: return "Temporary file: $source had unexpected date/time for last modification";
3598: }
3599: } else {
3600: return "Temporary file: $source missing";
3601: }
3602: } elsif (!print FH ($env{'form.'.$formname})) {
1.701 albertel 3603: &logthis('Failed to write to '.$filepath.'/'.$file);
3604: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
3605: return '/adm/notfound.html';
3606: }
1.570 albertel 3607: close(FH);
1.1051 raeburn 3608: if ($resizewidth && $resizeheight) {
3609: my $mm = new File::MMagic;
3610: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
3611: if ($mime_type =~ m{^image/}) {
3612: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
3613: }
1.977 amueller 3614: }
1.258 www 3615: }
1.1152 raeburn 3616: if (($context eq 'coursedoc') || ($parser eq 'parse')) {
3617: if (ref($mimetype)) {
3618: if ($$mimetype eq '') {
3619: my $mm = new File::MMagic;
3620: my $type = $mm->checktype_filename($filepath.'/'.$file);
3621: $$mimetype = $type;
3622: }
3623: }
3624: }
1.637 raeburn 3625: if ($parser eq 'parse') {
1.1152 raeburn 3626: if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
1.1024 raeburn 3627: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
3628: $allfiles,$codebase);
3629: unless ($parse_result eq 'ok') {
3630: &logthis('Failed to parse '.$filepath.$file.
3631: ' for embedded media: '.$parse_result);
3632: }
1.637 raeburn 3633: }
3634: }
1.860 raeburn 3635: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
3636: my $input = $filepath.'/'.$file;
3637: my $output = $filepath.'/'.'tn-'.$file;
3638: my $thumbsize = $thumbwidth.'x'.$thumbheight;
1.1172.2.96 raeburn 3639: my @args = ('convert','-sample',$thumbsize,$input,$output);
3640: system({$args[0]} @args);
1.860 raeburn 3641: if (-e $filepath.'/'.'tn-'.$file) {
3642: $fetchthumb = 1;
3643: }
3644: }
1.858 raeburn 3645:
1.259 www 3646: # Notify homeserver to grep it
3647: #
1.984 neumanie 3648: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 3649: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 3650: if ($fetchresult eq 'ok') {
1.860 raeburn 3651: if ($fetchthumb) {
3652: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
3653: if ($thumbresult ne 'ok') {
3654: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
3655: $docuhome.': '.$thumbresult);
3656: }
3657: }
1.259 www 3658: #
1.258 www 3659: # Return the URL to it
1.494 albertel 3660: return '/uploaded/'.$path.$file;
1.263 www 3661: } else {
1.494 albertel 3662: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
3663: ': '.$fetchresult);
1.263 www 3664: return '/adm/notfound.html';
1.858 raeburn 3665: }
1.493 albertel 3666: }
3667:
1.637 raeburn 3668: sub extract_embedded_items {
1.961 raeburn 3669: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 3670: my @state = ();
1.1164 raeburn 3671: my (%lastids,%related,%shockwave,%flashvars);
1.637 raeburn 3672: my %javafiles = (
3673: codebase => '',
3674: code => '',
3675: archive => ''
3676: );
3677: my %mediafiles = (
3678: src => '',
3679: movie => '',
3680: );
1.648 raeburn 3681: my $p;
3682: if ($content) {
3683: $p = HTML::LCParser->new($content);
3684: } else {
1.961 raeburn 3685: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 3686: }
1.641 albertel 3687: while (my $t=$p->get_token()) {
1.640 albertel 3688: if ($t->[0] eq 'S') {
3689: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 3690: push(@state, $tagname);
1.648 raeburn 3691: if (lc($tagname) eq 'allow') {
3692: &add_filetype($allfiles,$attr->{'src'},'src');
3693: }
1.640 albertel 3694: if (lc($tagname) eq 'img') {
3695: &add_filetype($allfiles,$attr->{'src'},'src');
3696: }
1.886 albertel 3697: if (lc($tagname) eq 'a') {
1.1172.2.24 raeburn 3698: unless (($attr->{'href'} =~ /^#/) || ($attr->{'href'} eq '')) {
3699: &add_filetype($allfiles,$attr->{'href'},'href');
3700: }
1.886 albertel 3701: }
1.645 raeburn 3702: if (lc($tagname) eq 'script') {
1.1164 raeburn 3703: my $src;
1.645 raeburn 3704: if ($attr->{'archive'} =~ /\.jar$/i) {
3705: &add_filetype($allfiles,$attr->{'archive'},'archive');
3706: } else {
1.1164 raeburn 3707: if ($attr->{'src'} ne '') {
3708: $src = $attr->{'src'};
3709: &add_filetype($allfiles,$src,'src');
3710: }
3711: }
3712: my $text = $p->get_trimmed_text();
3713: if ($text =~ /\Qswfobject.registerObject(\E([^\)]+)\)/) {
3714: my @swfargs = split(/,/,$1);
3715: foreach my $item (@swfargs) {
3716: $item =~ s/["']//g;
3717: $item =~ s/^\s+//;
3718: $item =~ s/\s+$//;
3719: }
3720: if (($swfargs[0] ne'') && ($swfargs[2] ne '')) {
3721: if (ref($related{$swfargs[0]}) eq 'ARRAY') {
3722: push(@{$related{$swfargs[0]}},$swfargs[2]);
3723: } else {
3724: $related{$swfargs[0]} = [$swfargs[2]];
3725: }
3726: }
1.645 raeburn 3727: }
3728: }
3729: if (lc($tagname) eq 'link') {
3730: if (lc($attr->{'rel'}) eq 'stylesheet') {
3731: &add_filetype($allfiles,$attr->{'href'},'href');
3732: }
3733: }
1.640 albertel 3734: if (lc($tagname) eq 'object' ||
3735: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
3736: foreach my $item (keys(%javafiles)) {
3737: $javafiles{$item} = '';
3738: }
1.1164 raeburn 3739: if ((lc($tagname) eq 'object') && (lc($state[-2]) ne 'object')) {
3740: $lastids{lc($tagname)} = $attr->{'id'};
3741: }
1.640 albertel 3742: }
3743: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
3744: my $name = lc($attr->{'name'});
3745: foreach my $item (keys(%javafiles)) {
3746: if ($name eq $item) {
3747: $javafiles{$item} = $attr->{'value'};
3748: last;
3749: }
3750: }
1.1164 raeburn 3751: my $pathfrom;
1.640 albertel 3752: foreach my $item (keys(%mediafiles)) {
3753: if ($name eq $item) {
1.1164 raeburn 3754: $pathfrom = $attr->{'value'};
3755: $shockwave{$lastids{lc($state[-2])}} = $pathfrom;
3756: &add_filetype($allfiles,$pathfrom,$name);
1.640 albertel 3757: last;
3758: }
3759: }
1.1164 raeburn 3760: if ($name eq 'flashvars') {
3761: $flashvars{$lastids{lc($state[-2])}} = $attr->{'value'};
3762: }
3763: if ($pathfrom ne '') {
3764: &embedded_dependency($allfiles,\%related,$lastids{lc($state[-2])},
3765: $pathfrom);
3766: }
1.640 albertel 3767: }
3768: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
3769: foreach my $item (keys(%javafiles)) {
3770: if ($attr->{$item}) {
3771: $javafiles{$item} = $attr->{$item};
3772: last;
3773: }
3774: }
3775: foreach my $item (keys(%mediafiles)) {
3776: if ($attr->{$item}) {
3777: &add_filetype($allfiles,$attr->{$item},$item);
3778: last;
3779: }
3780: }
1.1164 raeburn 3781: if (lc($tagname) eq 'embed') {
3782: if (($attr->{'name'} ne '') && ($attr->{'src'} ne '')) {
3783: &embedded_dependency($allfiles,\%related,$attr->{'name'},
3784: $attr->{'src'});
3785: }
3786: }
1.640 albertel 3787: }
1.1172.2.35 raeburn 3788: if (lc($tagname) eq 'iframe') {
3789: my $src = $attr->{'src'} ;
3790: if (($src ne '') && ($src !~ m{^(/|https?://)})) {
3791: &add_filetype($allfiles,$src,'src');
3792: } elsif ($src =~ m{^/}) {
3793: if ($env{'request.course.id'}) {
3794: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3795: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3796: my $url = &hreflocation('',$fullpath);
3797: if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
3798: my $relpath = $1;
3799: if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
3800: &add_filetype($allfiles,$1,'src');
3801: }
3802: }
3803: }
3804: }
3805: }
1.1164 raeburn 3806: if ($t->[4] =~ m{/>$}) {
1.1172.2.35 raeburn 3807: pop(@state);
1.1164 raeburn 3808: }
1.640 albertel 3809: } elsif ($t->[0] eq 'E') {
3810: my ($tagname) = ($t->[1]);
3811: if ($javafiles{'codebase'} ne '') {
3812: $javafiles{'codebase'} .= '/';
3813: }
3814: if (lc($tagname) eq 'applet' ||
3815: lc($tagname) eq 'object' ||
3816: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
3817: ) {
3818: foreach my $item (keys(%javafiles)) {
3819: if ($item ne 'codebase' && $javafiles{$item} ne '') {
3820: my $file=$javafiles{'codebase'}.$javafiles{$item};
3821: &add_filetype($allfiles,$file,$item);
3822: }
3823: }
3824: }
3825: pop @state;
3826: }
3827: }
1.1164 raeburn 3828: foreach my $id (sort(keys(%flashvars))) {
3829: if ($shockwave{$id} ne '') {
3830: my @pairs = split(/\&/,$flashvars{$id});
3831: foreach my $pair (@pairs) {
3832: my ($key,$value) = split(/\=/,$pair);
3833: if ($key eq 'thumb') {
3834: &add_filetype($allfiles,$value,$key);
3835: } elsif ($key eq 'content') {
3836: my ($path) = ($shockwave{$id} =~ m{^(.+/)[^/]+$});
3837: my ($ext) = ($value =~ /\.([^.]+)$/);
3838: if ($ext ne '') {
3839: &add_filetype($allfiles,$path.$value,$ext);
3840: }
3841: }
3842: }
3843: }
3844: }
1.637 raeburn 3845: return 'ok';
3846: }
3847:
1.639 albertel 3848: sub add_filetype {
3849: my ($allfiles,$file,$type)=@_;
3850: if (exists($allfiles->{$file})) {
3851: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
3852: push(@{$allfiles->{$file}}, &escape($type));
3853: }
3854: } else {
3855: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 3856: }
3857: }
3858:
1.1164 raeburn 3859: sub embedded_dependency {
3860: my ($allfiles,$related,$identifier,$pathfrom) = @_;
3861: if ((ref($allfiles) eq 'HASH') && (ref($related) eq 'HASH')) {
3862: if (($identifier ne '') &&
3863: (ref($related->{$identifier}) eq 'ARRAY') &&
3864: ($pathfrom ne '')) {
3865: my ($path) = ($pathfrom =~ m{^(.+/)[^/]+$});
3866: foreach my $dep (@{$related->{$identifier}}) {
3867: &add_filetype($allfiles,$path.$dep,'object');
3868: }
3869: }
3870: }
3871: return;
3872: }
3873:
1.493 albertel 3874: sub removeuploadedurl {
1.984 neumanie 3875: my ($url)=@_;
3876: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 3877: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 3878: }
3879:
3880: sub removeuserfile {
3881: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 3882: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3883: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 3884: if ($result eq 'ok') {
1.798 raeburn 3885: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
3886: my $metafile = $fname.'.meta';
3887: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 3888: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 3889: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3890: my $sqlresult =
1.823 albertel 3891: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3892: 'portfolio_metadata',$group,
3893: 'delete');
1.798 raeburn 3894: }
3895: }
3896: return $result;
1.257 www 3897: }
1.15 www 3898:
1.530 albertel 3899: sub mkdiruserfile {
3900: my ($docuname,$docudom,$dir)=@_;
3901: my $home=&homeserver($docuname,$docudom);
3902: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
3903: }
3904:
1.531 albertel 3905: sub renameuserfile {
3906: my ($docuname,$docudom,$old,$new)=@_;
3907: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 3908: my $result = &reply("renameuserfile:$docudom:$docuname:".
3909: &escape("$old").':'.&escape("$new"),$home);
3910: if ($result eq 'ok') {
3911: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
3912: my $oldmeta = $old.'.meta';
3913: my $newmeta = $new.'.meta';
3914: my $metaresult =
3915: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 3916: my $url = "/uploaded/$docudom/$docuname/$old";
3917: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 3918: my $sqlresult =
1.823 albertel 3919: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 3920: 'portfolio_metadata',$group,
3921: 'delete');
1.798 raeburn 3922: }
3923: }
3924: return $result;
1.531 albertel 3925: }
3926:
1.14 www 3927: # ------------------------------------------------------------------------- Log
3928:
3929: sub log {
3930: my ($dom,$nam,$hom,$what)=@_;
1.47 www 3931: return critical("log:$dom:$nam:$what",$hom);
1.157 www 3932: }
3933:
3934: # ------------------------------------------------------------------ Course Log
1.352 www 3935: #
3936: # This routine flushes several buffers of non-mission-critical nature
3937: #
1.157 www 3938:
3939: sub flushcourselogs {
1.352 www 3940: &logthis('Flushing log buffers');
3941: #
3942: # course logs
3943: # This is a log of all transactions in a course, which can be used
3944: # for data mining purposes
3945: #
3946: # It also collects the courseid database, which lists last transaction
3947: # times and course titles for all courseids
3948: #
3949: my %courseidbuffer=();
1.921 raeburn 3950: foreach my $crsid (keys(%courselogs)) {
1.352 www 3951: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 3952: &escape($courselogs{$crsid}),
3953: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 3954: delete $courselogs{$crsid};
3955: } else {
3956: &logthis('Failed to flush log buffer for '.$crsid);
3957: if (length($courselogs{$crsid})>40000) {
1.672 albertel 3958: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 3959: " exceeded maximum size, deleting.</font>");
3960: delete $courselogs{$crsid};
3961: }
1.352 www 3962: }
1.920 raeburn 3963: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 3964: 'description' => $coursedescrbuf{$crsid},
3965: 'inst_code' => $courseinstcodebuf{$crsid},
3966: 'type' => $coursetypebuf{$crsid},
3967: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 3968: };
1.191 harris41 3969: }
1.352 www 3970: #
3971: # Write course id database (reverse lookup) to homeserver of courses
3972: # Is used in pickcourse
3973: #
1.840 albertel 3974: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 3975: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 3976: $courseidbuffer{$crs_home},
3977: $crs_home,'timeonly');
1.352 www 3978: }
3979: #
3980: # File accesses
3981: # Writes to the dynamic metadata of resources to get hit counts, etc.
3982: #
1.449 matthew 3983: foreach my $entry (keys(%accesshash)) {
1.458 matthew 3984: if ($entry =~ /___count$/) {
3985: my ($dom,$name);
1.807 albertel 3986: ($dom,$name,undef)=
1.811 albertel 3987: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 3988: if (! defined($dom) || $dom eq '' ||
3989: ! defined($name) || $name eq '') {
1.620 albertel 3990: my $cid = $env{'request.course.id'};
3991: $dom = $env{'request.'.$cid.'.domain'};
3992: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 3993: }
1.450 matthew 3994: my $value = $accesshash{$entry};
3995: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
3996: my %temphash=($url => $value);
1.449 matthew 3997: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
3998: if ($result eq 'ok') {
3999: delete $accesshash{$entry};
4000: }
4001: } else {
1.811 albertel 4002: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.1159 www 4003: if (($dom eq 'uploaded') || ($dom eq 'adm')) { next; }
1.450 matthew 4004: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 4005: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
4006: delete $accesshash{$entry};
4007: }
1.185 www 4008: }
1.191 harris41 4009: }
1.352 www 4010: #
4011: # Roles
4012: # Reverse lookup of user roles for course faculty/staff and co-authorship
4013: #
1.800 albertel 4014: foreach my $entry (keys(%userrolehash)) {
1.351 www 4015: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 4016: split(/\:/,$entry);
4017: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 4018: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 4019: $rudom,$runame) eq 'ok') {
4020: delete $userrolehash{$entry};
4021: }
4022: }
1.662 raeburn 4023: #
1.1172.2.90 raeburn 4024: # Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)
1.662 raeburn 4025: #
4026: my %domrolebuffer = ();
1.1000 raeburn 4027: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 4028: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 4029: if ($domrolebuffer{$rudom}) {
4030: $domrolebuffer{$rudom}.='&'.&escape($entry).
4031: '='.&escape($domainrolehash{$entry});
4032: } else {
4033: $domrolebuffer{$rudom}.=&escape($entry).
4034: '='.&escape($domainrolehash{$entry});
4035: }
4036: delete $domainrolehash{$entry};
4037: }
4038: foreach my $dom (keys(%domrolebuffer)) {
1.1172.2.82 raeburn 4039: my %servers;
4040: if (defined(&domain($dom,'primary'))) {
4041: my $primary=&domain($dom,'primary');
4042: my $hostname=&hostname($primary);
4043: $servers{$primary} = $hostname;
4044: } else {
4045: %servers = &get_servers($dom,'library');
4046: }
1.841 albertel 4047: foreach my $tryserver (keys(%servers)) {
1.1172.2.82 raeburn 4048: if (&reply('domroleput:'.$dom.':'.
4049: $domrolebuffer{$dom},$tryserver) eq 'ok') {
4050: last;
4051: } else {
1.841 albertel 4052: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
4053: }
1.662 raeburn 4054: }
4055: }
1.186 www 4056: $dumpcount++;
1.157 www 4057: }
4058:
4059: sub courselog {
4060: my $what=shift;
1.158 www 4061: $what=time.':'.$what;
1.620 albertel 4062: unless ($env{'request.course.id'}) { return ''; }
4063: $coursedombuf{$env{'request.course.id'}}=
4064: $env{'course.'.$env{'request.course.id'}.'.domain'};
4065: $coursenumbuf{$env{'request.course.id'}}=
4066: $env{'course.'.$env{'request.course.id'}.'.num'};
4067: $coursehombuf{$env{'request.course.id'}}=
4068: $env{'course.'.$env{'request.course.id'}.'.home'};
4069: $coursedescrbuf{$env{'request.course.id'}}=
4070: $env{'course.'.$env{'request.course.id'}.'.description'};
4071: $courseinstcodebuf{$env{'request.course.id'}}=
4072: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
4073: $courseownerbuf{$env{'request.course.id'}}=
4074: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 4075: $coursetypebuf{$env{'request.course.id'}}=
4076: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 4077: if (defined $courselogs{$env{'request.course.id'}}) {
4078: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 4079: } else {
1.620 albertel 4080: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 4081: }
1.620 albertel 4082: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 4083: &flushcourselogs();
4084: }
1.158 www 4085: }
4086:
4087: sub courseacclog {
4088: my $fnsymb=shift;
1.620 albertel 4089: unless ($env{'request.course.id'}) { return ''; }
4090: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.1144 www 4091: if ($fnsymb=~/$LONCAPA::assess_re/) {
1.187 www 4092: $what.=':POST';
1.583 matthew 4093: # FIXME: Probably ought to escape things....
1.800 albertel 4094: foreach my $key (keys(%env)) {
4095: if ($key=~/^form\.(.*)/) {
1.975 raeburn 4096: my $formitem = $1;
4097: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
4098: $what.=':'.$formitem.'='.$env{$key};
4099: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
4100: $what.=':'.$formitem.'='.$env{$key};
4101: }
1.158 www 4102: }
1.191 harris41 4103: }
1.583 matthew 4104: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
4105: # FIXME: We should not be depending on a form parameter that someone
4106: # editing lonsearchcat.pm might change in the future.
1.620 albertel 4107: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 4108: $what.= ':POST';
4109: # FIXME: Probably ought to escape things....
4110: foreach my $element ('courseexp','crsfulltext','crsrelated',
4111: 'crsdiscuss') {
1.620 albertel 4112: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 4113: }
4114: }
1.158 www 4115: }
4116: &courselog($what);
1.149 www 4117: }
4118:
1.185 www 4119: sub countacc {
4120: my $url=&declutter(shift);
1.458 matthew 4121: return if (! defined($url) || $url eq '');
1.620 albertel 4122: unless ($env{'request.course.id'}) { return ''; }
1.1158 www 4123: #
4124: # Mark that this url was used in this course
4125: #
1.620 albertel 4126: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.1158 www 4127: #
4128: # Increase the access count for this resource in this child process
4129: #
1.281 www 4130: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 4131: $accesshash{$key}++;
1.185 www 4132: }
1.349 www 4133:
1.361 www 4134: sub linklog {
4135: my ($from,$to)=@_;
4136: $from=&declutter($from);
4137: $to=&declutter($to);
4138: $accesshash{$from.'___'.$to.'___comefrom'}=1;
4139: $accesshash{$to.'___'.$from.'___goto'}=1;
4140: }
1.1160 www 4141:
4142: sub statslog {
4143: my ($symb,$part,$users,$av_attempts,$degdiff)=@_;
4144: if ($users<2) { return; }
4145: my %dynstore=&LONCAPA::lonmetadata::dynamic_metadata_storage({
4146: 'course' => $env{'request.course.id'},
4147: 'sections' => '"all"',
4148: 'num_students' => $users,
4149: 'part' => $part,
4150: 'symb' => $symb,
4151: 'mean_tries' => $av_attempts,
4152: 'deg_of_diff' => $degdiff});
4153: foreach my $key (keys(%dynstore)) {
4154: $accesshash{$key}=$dynstore{$key};
4155: }
4156: }
1.361 www 4157:
1.349 www 4158: sub userrolelog {
4159: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.1169 droeschl 4160: if ( $trole =~ /^(ca|aa|in|cc|ep|cr|ta|co)/ ) {
1.350 www 4161: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4162: $userrolehash
4163: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 4164: =$tend.':'.$tstart;
1.662 raeburn 4165: }
1.1169 droeschl 4166: if ($env{'request.role'} =~ /dc\./ && $trole =~ /^(au|in|cc|ep|cr|ta|co)/) {
1.898 albertel 4167: $userrolehash
4168: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
4169: =$tend.':'.$tstart;
4170: }
1.1172.2.90 raeburn 4171: if ($trole =~ /^(dc|ad|li|au|dg|sc|dh|da)/ ) {
1.662 raeburn 4172: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
4173: $domainrolehash
4174: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
4175: = $tend.':'.$tstart;
4176: }
1.351 www 4177: }
4178:
1.957 raeburn 4179: sub courserolelog {
4180: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
1.1172.2.9 raeburn 4181: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
4182: my $cdom = $1;
4183: my $cnum = $2;
4184: my $sec = $3;
4185: my $namespace = 'rolelog';
4186: my %storehash = (
4187: role => $trole,
4188: start => $tstart,
4189: end => $tend,
4190: selfenroll => $selfenroll,
4191: context => $context,
4192: );
4193: if ($trole eq 'gr') {
4194: $namespace = 'groupslog';
4195: $storehash{'group'} = $sec;
4196: } else {
4197: $storehash{'section'} = $sec;
4198: }
4199: &write_log('course',$namespace,\%storehash,$delflag,$username,
4200: $domain,$cnum,$cdom);
4201: if (($trole ne 'st') || ($sec ne '')) {
4202: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
1.957 raeburn 4203: }
4204: }
4205: return;
4206: }
4207:
1.1172.2.9 raeburn 4208: sub domainrolelog {
4209: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4210: if ($area =~ m{^/($match_domain)/$}) {
4211: my $cdom = $1;
4212: my $domconfiguser = &Apache::lonnet::get_domainconfiguser($cdom);
4213: my $namespace = 'rolelog';
4214: my %storehash = (
4215: role => $trole,
4216: start => $tstart,
4217: end => $tend,
4218: context => $context,
4219: );
4220: &write_log('domain',$namespace,\%storehash,$delflag,$username,
4221: $domain,$domconfiguser,$cdom);
4222: }
4223: return;
4224:
4225: }
4226:
4227: sub coauthorrolelog {
4228: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$context)=@_;
4229: if ($area =~ m{^/($match_domain)/($match_username)$}) {
4230: my $audom = $1;
4231: my $auname = $2;
4232: my $namespace = 'rolelog';
4233: my %storehash = (
4234: role => $trole,
4235: start => $tstart,
4236: end => $tend,
4237: context => $context,
4238: );
4239: &write_log('author',$namespace,\%storehash,$delflag,$username,
4240: $domain,$auname,$audom);
4241: }
4242: return;
4243: }
4244:
1.351 www 4245: sub get_course_adv_roles {
1.948 raeburn 4246: my ($cid,$codes) = @_;
1.620 albertel 4247: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 4248: my %coursehash=&coursedescription($cid);
1.988 raeburn 4249: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 4250: my %nothide=();
1.800 albertel 4251: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 4252: if ($user !~ /:/) {
4253: $nothide{join(':',split(/[\@]/,$user))}=1;
4254: } else {
4255: $nothide{$user}=1;
4256: }
1.470 www 4257: }
1.1172.2.23 raeburn 4258: my @possdoms = ($coursehash{'domain'});
4259: if ($coursehash{'checkforpriv'}) {
4260: push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
4261: }
1.351 www 4262: my %returnhash=();
4263: my %dumphash=
4264: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
4265: my $now=time;
1.997 raeburn 4266: my %privileged;
1.1000 raeburn 4267: foreach my $entry (keys(%dumphash)) {
1.800 albertel 4268: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 4269: if (($tstart) && ($tstart<0)) { next; }
4270: if (($tend) && ($tend<$now)) { next; }
4271: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 4272: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 4273: if ($username eq '' || $domain eq '') { next; }
1.1172.2.23 raeburn 4274: if ((&privileged($username,$domain,\@possdoms)) &&
1.997 raeburn 4275: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 4276: if ($role eq 'cr') { next; }
1.948 raeburn 4277: if ($codes) {
4278: if ($section) { $role .= ':'.$section; }
4279: if ($returnhash{$role}) {
4280: $returnhash{$role}.=','.$username.':'.$domain;
4281: } else {
4282: $returnhash{$role}=$username.':'.$domain;
4283: }
1.351 www 4284: } else {
1.988 raeburn 4285: my $key=&plaintext($role,$crstype);
1.973 bisitz 4286: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 4287: if ($returnhash{$key}) {
4288: $returnhash{$key}.=','.$username.':'.$domain;
4289: } else {
4290: $returnhash{$key}=$username.':'.$domain;
4291: }
1.351 www 4292: }
1.948 raeburn 4293: }
1.400 www 4294: return %returnhash;
4295: }
4296:
4297: sub get_my_roles {
1.937 raeburn 4298: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 4299: unless (defined($uname)) { $uname=$env{'user.name'}; }
4300: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 4301: my (%dumphash,%nothide);
1.1086 raeburn 4302: if ($context eq 'userroles') {
1.1166 raeburn 4303: %dumphash = &dump('roles',$udom,$uname);
1.858 raeburn 4304: } else {
1.1172.2.23 raeburn 4305: %dumphash = &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 4306: if ($hidepriv) {
4307: my %coursehash=&coursedescription($udom.'_'.$uname);
4308: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
4309: if ($user !~ /:/) {
4310: $nothide{join(':',split(/[\@]/,$user))} = 1;
4311: } else {
4312: $nothide{$user} = 1;
4313: }
4314: }
4315: }
1.858 raeburn 4316: }
1.400 www 4317: my %returnhash=();
4318: my $now=time;
1.999 raeburn 4319: my %privileged;
1.800 albertel 4320: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 4321: my ($role,$tend,$tstart);
4322: if ($context eq 'userroles') {
1.1149 raeburn 4323: next if ($entry =~ /^rolesdef/);
1.867 raeburn 4324: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
4325: } else {
4326: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
4327: }
1.400 www 4328: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 4329: my $status = 'active';
1.939 raeburn 4330: if (($tend) && ($tend<=$now)) {
1.832 raeburn 4331: $status = 'previous';
4332: }
4333: if (($tstart) && ($now<$tstart)) {
4334: $status = 'future';
4335: }
4336: if (ref($types) eq 'ARRAY') {
4337: if (!grep(/^\Q$status\E$/,@{$types})) {
4338: next;
4339: }
4340: } else {
4341: if ($status ne 'active') {
4342: next;
4343: }
4344: }
1.867 raeburn 4345: my ($rolecode,$username,$domain,$section,$area);
4346: if ($context eq 'userroles') {
1.1172.2.9 raeburn 4347: ($area,$rolecode) = ($entry =~ /^(.+)_([^_]+)$/);
1.867 raeburn 4348: (undef,$domain,$username,$section) = split(/\//,$area);
4349: } else {
4350: ($role,$username,$domain,$section) = split(/\:/,$entry);
4351: }
1.832 raeburn 4352: if (ref($roledoms) eq 'ARRAY') {
4353: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
4354: next;
4355: }
4356: }
4357: if (ref($roles) eq 'ARRAY') {
4358: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 4359: if ($role =~ /^cr\//) {
4360: if (!grep(/^cr$/,@{$roles})) {
4361: next;
4362: }
1.1104 raeburn 4363: } elsif ($role =~ /^gr\//) {
4364: if (!grep(/^gr$/,@{$roles})) {
4365: next;
4366: }
1.922 raeburn 4367: } else {
4368: next;
4369: }
1.832 raeburn 4370: }
1.867 raeburn 4371: }
1.937 raeburn 4372: if ($hidepriv) {
1.1172.2.23 raeburn 4373: my @privroles = ('dc','su');
1.999 raeburn 4374: if ($context eq 'userroles') {
1.1172.2.23 raeburn 4375: next if (grep(/^\Q$role\E$/,@privroles));
1.999 raeburn 4376: } else {
1.1172.2.23 raeburn 4377: my $possdoms = [$domain];
4378: if (ref($roledoms) eq 'ARRAY') {
4379: push(@{$possdoms},@{$roledoms});
1.999 raeburn 4380: }
1.1172.2.23 raeburn 4381: if (&privileged($username,$domain,$possdoms,\@privroles)) {
1.999 raeburn 4382: if (!$nothide{$username.':'.$domain}) {
4383: next;
4384: }
4385: }
1.937 raeburn 4386: }
4387: }
1.933 raeburn 4388: if ($withsec) {
4389: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
4390: $tstart.':'.$tend;
4391: } else {
4392: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
4393: }
1.832 raeburn 4394: }
1.373 www 4395: return %returnhash;
1.399 www 4396: }
4397:
1.1172.2.89 raeburn 4398: sub get_all_adhocroles {
4399: my ($dom) = @_;
4400: my @roles_by_num = ();
4401: my %domdefaults = &get_domain_defaults($dom);
4402: my (%description,%access_in_dom,%access_info);
4403: if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
4404: my $count = 0;
4405: my %domcurrent = %{$domdefaults{'adhocroles'}};
4406: my %ordered;
4407: foreach my $role (sort(keys(%domcurrent))) {
4408: my ($order,$desc,$access_in_dom);
4409: if (ref($domcurrent{$role}) eq 'HASH') {
4410: $order = $domcurrent{$role}{'order'};
4411: $desc = $domcurrent{$role}{'desc'};
4412: $access_in_dom{$role} = $domcurrent{$role}{'access'};
4413: $access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
4414: }
4415: if ($order eq '') {
4416: $order = $count;
4417: }
4418: $ordered{$order} = $role;
4419: if ($desc ne '') {
4420: $description{$role} = $desc;
4421: } else {
4422: $description{$role}= $role;
4423: }
4424: $count++;
4425: }
4426: foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
4427: push(@roles_by_num,$ordered{$item});
4428: }
4429: }
4430: return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
4431: }
4432:
4433: sub get_my_adhocroles {
4434: my ($cid,$checkreg) = @_;
4435: my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
4436: if ($env{'request.course.id'} eq $cid) {
4437: $cdom = $env{'course.'.$cid.'.domain'};
4438: $cnum = $env{'course.'.$cid.'.num'};
4439: $info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
4440: } elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
4441: $cdom = $1;
4442: $cnum = $2;
4443: %info = &Apache::lonnet::get('environment',['internal.coursecode'],
4444: $cdom,$cnum);
4445: }
4446: if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
4447: my $user = $env{'user.name'}.':'.$env{'user.domain'};
4448: my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
4449: if ($rosterhash{$user} ne '') {
4450: my $type = (split(/:/,$rosterhash{$user}))[5];
4451: return ([],{}) if ($type eq 'auto');
4452: }
4453: }
4454: if (($cdom ne '') && ($cnum ne '')) {
1.1172.2.90 raeburn 4455: if (($env{"user.role.dh./$cdom/"}) || ($env{"user.role.da./$cdom/"})) {
1.1172.2.89 raeburn 4456: my $then=$env{'user.login.time'};
4457: my $update=$env{'user.update.time'};
1.1172.2.90 raeburn 4458: if (!$update) {
4459: $update = $then;
4460: }
4461: my @liveroles;
4462: foreach my $role ('dh','da') {
4463: if ($env{"user.role.$role./$cdom/"}) {
4464: my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
4465: my $limit = $update;
4466: if ($env{'request.role'} eq "$role./$cdom/") {
4467: $limit = $then;
4468: }
4469: my $activerole = 1;
4470: if ($tstart && $tstart>$limit) { $activerole = 0; }
4471: if ($tend && $tend <$limit) { $activerole = 0; }
4472: if ($activerole) {
4473: push(@liveroles,$role);
4474: }
4475: }
4476: }
4477: if (@liveroles) {
1.1172.2.89 raeburn 4478: if (&homeserver($cnum,$cdom) ne 'no_host') {
4479: my ($accessref,$accessinfo,%access_in_dom);
4480: ($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
4481: if (ref($roles_by_num) eq 'ARRAY') {
4482: if (@{$roles_by_num}) {
4483: my %settings;
4484: if ($env{'request.course.id'} eq $cid) {
4485: foreach my $envkey (keys(%env)) {
4486: if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
4487: $settings{$1} = $env{$envkey};
4488: }
4489: }
4490: } else {
4491: %settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
4492: }
4493: my %setincrs;
4494: if ($settings{'internal.adhocaccess'}) {
4495: map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
4496: }
4497: my @statuses;
4498: if ($env{'environment.inststatus'}) {
4499: @statuses = split(/,/,$env{'environment.inststatus'});
4500: }
4501: my $user = $env{'user.name'}.':'.$env{'user.domain'};
4502: if (ref($accessref) eq 'HASH') {
4503: %access_in_dom = %{$accessref};
4504: }
4505: foreach my $role (@{$roles_by_num}) {
4506: my ($curraccess,@okstatus,@personnel);
4507: if ($setincrs{$role}) {
4508: ($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
4509: if ($curraccess eq 'status') {
4510: @okstatus = split(/\&/,$rest);
4511: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4512: @personnel = split(/\&/,$rest);
4513: }
4514: } else {
4515: $curraccess = $access_in_dom{$role};
4516: if (ref($accessinfo) eq 'HASH') {
4517: if ($curraccess eq 'status') {
4518: if (ref($accessinfo->{$role}) eq 'ARRAY') {
4519: @okstatus = @{$accessinfo->{$role}};
4520: }
4521: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4522: if (ref($accessinfo->{$role}) eq 'ARRAY') {
4523: @personnel = @{$accessinfo->{$role}};
4524: }
4525: }
4526: }
4527: }
4528: if ($curraccess eq 'none') {
4529: next;
4530: } elsif ($curraccess eq 'all') {
4531: push(@possroles,$role);
1.1172.2.90 raeburn 4532: } elsif ($curraccess eq 'dh') {
4533: if (grep(/^dh$/,@liveroles)) {
4534: push(@possroles,$role);
4535: } else {
4536: next;
4537: }
4538: } elsif ($curraccess eq 'da') {
4539: if (grep(/^da$/,@liveroles)) {
4540: push(@possroles,$role);
4541: } else {
4542: next;
4543: }
1.1172.2.89 raeburn 4544: } elsif ($curraccess eq 'status') {
4545: if (@okstatus) {
4546: if (!@statuses) {
4547: if (grep(/^default$/,@okstatus)) {
4548: push(@possroles,$role);
4549: }
4550: } else {
4551: foreach my $status (@okstatus) {
4552: if (grep(/^\Q$status\E$/,@statuses)) {
4553: push(@possroles,$role);
4554: last;
4555: }
4556: }
4557: }
4558: }
4559: } elsif (($curraccess eq 'exc') || ($curraccess eq 'inc')) {
4560: if (grep(/^\Q$user\E$/,@personnel)) {
4561: if ($curraccess eq 'exc') {
4562: push(@possroles,$role);
4563: }
4564: } elsif ($curraccess eq 'inc') {
4565: push(@possroles,$role);
4566: }
4567: }
4568: }
4569: }
4570: }
4571: }
4572: }
4573: }
4574: }
4575: unless (ref($description) eq 'HASH') {
4576: if (ref($roles_by_num) eq 'ARRAY') {
4577: my %desc;
4578: map { $desc{$_} = $_; } (@{$roles_by_num});
4579: $description = \%desc;
4580: } else {
4581: $description = {};
4582: }
4583: }
4584: return (\@possroles,$description);
4585: }
4586:
1.399 www 4587: # ----------------------------------------------------- Frontpage Announcements
4588: #
4589: #
4590:
4591: sub postannounce {
4592: my ($server,$text)=@_;
1.844 albertel 4593: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 4594: unless ($text=~/\w/) { $text=''; }
4595: return &reply('setannounce:'.&escape($text),$server);
4596: }
4597:
4598: sub getannounce {
1.448 albertel 4599:
1.1172.2.96 raeburn 4600: if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 4601: my $announcement='';
1.800 albertel 4602: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 4603: close($fh);
1.399 www 4604: if ($announcement=~/\w/) {
4605: return
4606: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 4607: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 4608: } else {
4609: return '';
4610: }
4611: } else {
4612: return '';
4613: }
1.351 www 4614: }
1.353 www 4615:
4616: # ---------------------------------------------------------- Course ID routines
4617: # Deal with domain's nohist_courseid.db files
4618: #
4619:
4620: sub courseidput {
1.921 raeburn 4621: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 4622: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 4623: my $outcome;
4624: if ($caller eq 'timeonly') {
4625: my $cids = '';
4626: foreach my $item (keys(%$storehash)) {
4627: $cids.=&escape($item).'&';
4628: }
4629: $cids=~s/\&$//;
4630: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
4631: $coursehome);
4632: } else {
4633: my $items = '';
4634: foreach my $item (keys(%$storehash)) {
4635: $items.= &escape($item).'='.
4636: &freeze_escape($$storehash{$item}).'&';
4637: }
4638: $items=~s/\&$//;
4639: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
4640: $coursehome);
1.918 raeburn 4641: }
4642: if ($outcome eq 'unknown_cmd') {
4643: my $what;
4644: foreach my $cid (keys(%$storehash)) {
4645: $what .= &escape($cid).'=';
1.921 raeburn 4646: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 4647: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 4648: }
4649: $what =~ s/\:$/&/;
4650: }
4651: $what =~ s/\&$//;
4652: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
4653: } else {
4654: return $outcome;
4655: }
1.353 www 4656: }
4657:
4658: sub courseiddump {
1.921 raeburn 4659: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 4660: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 4661: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1172.2.38 raeburn 4662: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
1.1172.2.68 raeburn 4663: $hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
1.918 raeburn 4664: my $as_hash = 1;
4665: my %returnhash;
4666: if (!$domfilter) { $domfilter=''; }
1.845 albertel 4667: my %libserv = &all_library();
4668: foreach my $tryserver (keys(%libserv)) {
4669: if ( ( $hostidflag == 1
4670: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
4671: || (!defined($hostidflag)) ) {
4672:
1.918 raeburn 4673: if (($domfilter eq '') ||
4674: (&host_domain($tryserver) eq $domfilter)) {
1.1172.2.22 raeburn 4675: my $rep;
4676: if (grep { $_ eq $tryserver } ¤t_machine_ids()) {
4677: $rep = &LONCAPA::Lond::dump_course_id_handler(
4678: join(":", (&host_domain($tryserver), $sincefilter,
4679: &escape($descfilter), &escape($instcodefilter),
4680: &escape($ownerfilter), &escape($coursefilter),
4681: &escape($typefilter), &escape($regexp_ok),
4682: $as_hash, &escape($selfenrollonly),
4683: &escape($catfilter), $showhidden, $caller,
4684: &escape($cloner), &escape($cc_clone), $cloneonly,
4685: &escape($createdbefore), &escape($createdafter),
1.1172.2.68 raeburn 4686: &escape($creationcontext),$domcloner,$hasuniquecode,
4687: $reqcrsdom,&escape($reqinstcode))));
1.1172.2.22 raeburn 4688: } else {
4689: $rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
4690: $sincefilter.':'.&escape($descfilter).':'.
4691: &escape($instcodefilter).':'.&escape($ownerfilter).
4692: ':'.&escape($coursefilter).':'.&escape($typefilter).
4693: ':'.&escape($regexp_ok).':'.$as_hash.':'.
4694: &escape($selfenrollonly).':'.&escape($catfilter).':'.
4695: $showhidden.':'.$caller.':'.&escape($cloner).':'.
4696: &escape($cc_clone).':'.$cloneonly.':'.
4697: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1172.2.68 raeburn 4698: &escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
4699: ':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);
1.1172.2.22 raeburn 4700: }
4701:
1.918 raeburn 4702: my @pairs=split(/\&/,$rep);
4703: foreach my $item (@pairs) {
4704: my ($key,$value)=split(/\=/,$item,2);
4705: $key = &unescape($key);
4706: next if ($key =~ /^error: 2 /);
4707: my $result = &thaw_unescape($value);
4708: if (ref($result) eq 'HASH') {
4709: $returnhash{$key}=$result;
4710: } else {
1.921 raeburn 4711: my @responses = split(/:/,$value);
4712: my @items = ('description','inst_code','owner','type');
1.918 raeburn 4713: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 4714: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 4715: }
1.1008 raeburn 4716: }
1.353 www 4717: }
4718: }
4719: }
4720: }
4721: return %returnhash;
4722: }
4723:
1.1055 raeburn 4724: sub courselastaccess {
4725: my ($cdom,$cnum,$hostidref) = @_;
4726: my %returnhash;
4727: if ($cdom && $cnum) {
4728: my $chome = &homeserver($cnum,$cdom);
4729: if ($chome ne 'no_host') {
4730: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
4731: &extract_lastaccess(\%returnhash,$rep);
4732: }
4733: } else {
4734: if (!$cdom) { $cdom=''; }
4735: my %libserv = &all_library();
4736: foreach my $tryserver (keys(%libserv)) {
4737: if (ref($hostidref) eq 'ARRAY') {
4738: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
4739: }
4740: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
4741: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
4742: &extract_lastaccess(\%returnhash,$rep);
4743: }
4744: }
4745: }
4746: return %returnhash;
4747: }
4748:
4749: sub extract_lastaccess {
4750: my ($returnhash,$rep) = @_;
4751: if (ref($returnhash) eq 'HASH') {
4752: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
4753: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
4754: $rep eq '') {
4755: my @pairs=split(/\&/,$rep);
4756: foreach my $item (@pairs) {
4757: my ($key,$value)=split(/\=/,$item,2);
4758: $key = &unescape($key);
4759: next if ($key =~ /^error: 2 /);
4760: $returnhash->{$key} = &thaw_unescape($value);
4761: }
4762: }
4763: }
4764: return;
4765: }
4766:
1.658 raeburn 4767: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 4768:
4769: sub dcmailput {
1.685 raeburn 4770: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 4771: my $status = &Apache::lonnet::critical(
1.740 www 4772: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
4773: &escape($message),$server);
1.662 raeburn 4774: return $status;
4775: }
4776:
1.658 raeburn 4777: sub dcmaildump {
4778: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 4779: my %returnhash=();
1.846 albertel 4780:
4781: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 4782: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
4783: &escape($enddate).':';
4784: my @esc_senders=map { &escape($_)} @$senders;
4785: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 4786: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 4787: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 4788: if (($key) && ($value)) {
4789: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 4790: }
4791: }
4792: }
4793: return %returnhash;
4794: }
1.662 raeburn 4795: # ---------------------------------------------------------- Domain roles
4796:
4797: sub get_domain_roles {
4798: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 4799: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 4800: $startdate = '.';
4801: }
1.1018 raeburn 4802: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 4803: $enddate = '.';
4804: }
1.922 raeburn 4805: my $rolelist;
4806: if (ref($roles) eq 'ARRAY') {
1.1172.2.23 raeburn 4807: $rolelist = join('&',@{$roles});
1.922 raeburn 4808: }
1.662 raeburn 4809: my %personnel = ();
1.841 albertel 4810:
4811: my %servers = &get_servers($dom,'library');
4812: foreach my $tryserver (keys(%servers)) {
4813: %{$personnel{$tryserver}}=();
4814: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
4815: &escape($startdate).':'.
4816: &escape($enddate).':'.
4817: &escape($rolelist), $tryserver))) {
4818: my ($key,$value) = split(/\=/,$line,2);
4819: if (($key) && ($value)) {
4820: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
4821: }
4822: }
1.662 raeburn 4823: }
4824: return %personnel;
4825: }
1.658 raeburn 4826:
1.1172.2.89 raeburn 4827: sub get_active_domroles {
4828: my ($dom,$roles) = @_;
4829: return () unless (ref($roles) eq 'ARRAY');
4830: my $now = time;
4831: my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
4832: my %domroles;
4833: foreach my $server (keys(%dompersonnel)) {
4834: foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
4835: my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
4836: $domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
4837: }
4838: }
4839: return %domroles;
4840: }
4841:
1.1057 www 4842: # ----------------------------------------------------------- Interval timing
1.149 www 4843:
1.1153 www 4844: {
4845: # Caches needed for speedup of navmaps
4846: # We don't want to cache this for very long at all (5 seconds at most)
4847: #
4848: # The user for whom we cache
4849: my $cachedkey='';
4850: # The cached times for this user
4851: my %cachedtimes=();
4852: # When this was last done
1.1172.2.66 raeburn 4853: my $cachedtime='';
1.1153 www 4854:
4855: sub load_all_first_access {
1.1154 raeburn 4856: my ($uname,$udom)=@_;
1.1156 www 4857: if (($cachedkey eq $uname.':'.$udom) &&
1.1172.2.2 raeburn 4858: (abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
1.1154 raeburn 4859: return;
4860: }
4861: $cachedtime=time;
4862: $cachedkey=$uname.':'.$udom;
4863: %cachedtimes=&dump('firstaccesstimes',$udom,$uname);
1.1153 www 4864: }
4865:
1.504 albertel 4866: sub get_first_access {
1.1162 raeburn 4867: my ($type,$argsymb,$argmap)=@_;
1.790 albertel 4868: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4869: if ($argsymb) { $symb=$argsymb; }
4870: my ($map,$id,$res)=&decode_symb($symb);
1.1162 raeburn 4871: if ($argmap) { $map = $argmap; }
1.926 albertel 4872: if ($type eq 'course') {
4873: $res='course';
4874: } elsif ($type eq 'map') {
1.588 albertel 4875: $res=&symbread($map);
4876: } else {
4877: $res=$symb;
4878: }
1.1153 www 4879: &load_all_first_access($uname,$udom);
4880: return $cachedtimes{"$courseid\0$res"};
1.504 albertel 4881: }
4882:
4883: sub set_first_access {
1.1162 raeburn 4884: my ($type,$interval)=@_;
1.790 albertel 4885: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 4886: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 4887: if ($type eq 'course') {
4888: $res='course';
4889: } elsif ($type eq 'map') {
1.588 albertel 4890: $res=&symbread($map);
4891: } else {
4892: $res=$symb;
4893: }
1.1153 www 4894: $cachedkey='';
1.1162 raeburn 4895: my $firstaccess=&get_first_access($type,$symb,$map);
1.505 albertel 4896: if (!$firstaccess) {
1.1162 raeburn 4897: my $start = time;
4898: my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
4899: $udom,$uname);
4900: if ($putres eq 'ok') {
4901: &put('timerinterval',{"$courseid\0$res"=>$interval},
4902: $udom,$uname);
4903: &appenv(
4904: {
4905: 'course.'.$courseid.'.firstaccess.'.$res => $start,
4906: 'course.'.$courseid.'.timerinterval.'.$res => $interval,
4907: }
4908: );
1.1172.2.97 raeburn 4909: if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
4910: $cachedtimes{"$courseid\0$res"} = $start;
4911: }
1.1162 raeburn 4912: }
4913: return $putres;
1.505 albertel 4914: }
4915: return 'already_set';
1.504 albertel 4916: }
1.1153 www 4917: }
1.1172.2.32 raeburn 4918:
4919: sub checkout {
4920: my ($symb,$tuname,$tudom,$tcrsid)=@_;
4921: my $now=time;
4922: my $lonhost=$perlvar{'lonHostID'};
4923: my $infostr=&escape(
4924: 'CHECKOUTTOKEN&'.
4925: $tuname.'&'.
4926: $tudom.'&'.
4927: $tcrsid.'&'.
4928: $symb.'&'.
4929: $now.'&'.$ENV{'REMOTE_ADDR'});
4930: my $token=&reply('tmpput:'.$infostr,$lonhost);
4931: if ($token=~/^error\:/) {
4932: &logthis("<font color=\"blue\">WARNING: ".
4933: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
4934: "</font>");
4935: return '';
4936: }
4937:
4938: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
4939: $token=~tr/a-z/A-Z/;
4940:
4941: my %infohash=('resource.0.outtoken' => $token,
4942: 'resource.0.checkouttime' => $now,
4943: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
4944:
4945: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
4946: return '';
4947: } else {
4948: &logthis("<font color=\"blue\">WARNING: ".
4949: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
4950: "</font>");
4951: }
4952:
4953: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
4954: &escape('Checkout '.$infostr.' - '.
4955: $token)) ne 'ok') {
4956: return '';
4957: } else {
4958: &logthis("<font color=\"blue\">WARNING: ".
4959: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
4960: "</font>");
4961: }
4962: return $token;
4963: }
4964:
4965: # ------------------------------------------------------------ Check in an item
4966:
4967: sub checkin {
4968: my $token=shift;
4969: my $now=time;
4970: my ($ta,$tb,$lonhost)=split(/\*/,$token);
4971: $lonhost=~tr/A-Z/a-z/;
4972: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
4973: $dtoken=~s/\W/\_/g;
4974: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
4975: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
4976:
4977: unless (($tuname) && ($tudom)) {
4978: &logthis('Check in '.$token.' ('.$dtoken.') failed');
4979: return '';
4980: }
4981:
4982: unless (&allowed('mgr',$tcrsid)) {
4983: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
4984: $env{'user.name'}.' - '.$env{'user.domain'});
4985: return '';
4986: }
4987:
4988: my %infohash=('resource.0.intoken' => $token,
4989: 'resource.0.checkintime' => $now,
4990: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
4991:
4992: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
4993: return '';
4994: }
4995:
4996: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
4997: &escape('Checkin - '.$token)) ne 'ok') {
4998: return '';
4999: }
5000:
5001: return ($symb,$tuname,$tudom,$tcrsid);
5002: }
5003:
1.110 www 5004: # --------------------------------------------- Set Expire Date for Spreadsheet
5005:
5006: sub expirespread {
5007: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 5008: my $cid=$env{'request.course.id'};
1.110 www 5009: if ($cid) {
5010: my $now=time;
5011: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 5012: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
5013: $env{'course.'.$cid.'.num'}.
1.110 www 5014: ':nohist_expirationdates:'.
5015: &escape($key).'='.$now,
1.620 albertel 5016: $env{'course.'.$cid.'.home'})
1.110 www 5017: }
5018: return 'ok';
1.14 www 5019: }
5020:
1.109 www 5021: # ----------------------------------------------------- Devalidate Spreadsheets
5022:
5023: sub devalidate {
1.325 www 5024: my ($symb,$uname,$udom)=@_;
1.620 albertel 5025: my $cid=$env{'request.course.id'};
1.109 www 5026: if ($cid) {
1.391 matthew 5027: # delete the stored spreadsheets for
5028: # - the student level sheet of this user in course's homespace
5029: # - the assessment level sheet for this resource
5030: # for this user in user's homespace
1.553 albertel 5031: # - current conditional state info
1.325 www 5032: my $key=$uname.':'.$udom.':';
1.109 www 5033: my $status=
1.299 matthew 5034: &del('nohist_calculatedsheets',
1.391 matthew 5035: [$key.'studentcalc:'],
1.620 albertel 5036: $env{'course.'.$cid.'.domain'},
5037: $env{'course.'.$cid.'.num'})
1.133 albertel 5038: .' '.
5039: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 5040: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 5041: unless ($status eq 'ok ok') {
5042: &logthis('Could not devalidate spreadsheet '.
1.325 www 5043: $uname.' at '.$udom.' for '.
1.109 www 5044: $symb.': '.$status);
1.133 albertel 5045: }
1.553 albertel 5046: &delenv('user.state.'.$cid);
1.109 www 5047: }
5048: }
5049:
1.265 albertel 5050: sub get_scalar {
5051: my ($string,$end) = @_;
5052: my $value;
5053: if ($$string =~ s/^([^&]*?)($end)/$2/) {
5054: $value = $1;
5055: } elsif ($$string =~ s/^([^&]*?)&//) {
5056: $value = $1;
5057: }
5058: return &unescape($value);
5059: }
5060:
5061: sub array2str {
5062: my (@array) = @_;
5063: my $result=&arrayref2str(\@array);
5064: $result=~s/^__ARRAY_REF__//;
5065: $result=~s/__END_ARRAY_REF__$//;
5066: return $result;
5067: }
5068:
1.204 albertel 5069: sub arrayref2str {
5070: my ($arrayref) = @_;
1.265 albertel 5071: my $result='__ARRAY_REF__';
1.204 albertel 5072: foreach my $elem (@$arrayref) {
1.265 albertel 5073: if(ref($elem) eq 'ARRAY') {
5074: $result.=&arrayref2str($elem).'&';
5075: } elsif(ref($elem) eq 'HASH') {
5076: $result.=&hashref2str($elem).'&';
5077: } elsif(ref($elem)) {
5078: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 5079: } else {
5080: $result.=&escape($elem).'&';
5081: }
5082: }
5083: $result=~s/\&$//;
1.265 albertel 5084: $result .= '__END_ARRAY_REF__';
1.204 albertel 5085: return $result;
5086: }
5087:
1.168 albertel 5088: sub hash2str {
1.204 albertel 5089: my (%hash) = @_;
5090: my $result=&hashref2str(\%hash);
1.265 albertel 5091: $result=~s/^__HASH_REF__//;
5092: $result=~s/__END_HASH_REF__$//;
1.204 albertel 5093: return $result;
5094: }
5095:
5096: sub hashref2str {
5097: my ($hashref)=@_;
1.265 albertel 5098: my $result='__HASH_REF__';
1.800 albertel 5099: foreach my $key (sort(keys(%$hashref))) {
5100: if (ref($key) eq 'ARRAY') {
5101: $result.=&arrayref2str($key).'=';
5102: } elsif (ref($key) eq 'HASH') {
5103: $result.=&hashref2str($key).'=';
5104: } elsif (ref($key)) {
1.265 albertel 5105: $result.='=';
1.800 albertel 5106: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 5107: } else {
1.1132 raeburn 5108: if (defined($key)) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 5109: }
5110:
1.800 albertel 5111: if(ref($hashref->{$key}) eq 'ARRAY') {
5112: $result.=&arrayref2str($hashref->{$key}).'&';
5113: } elsif(ref($hashref->{$key}) eq 'HASH') {
5114: $result.=&hashref2str($hashref->{$key}).'&';
5115: } elsif(ref($hashref->{$key})) {
1.265 albertel 5116: $result.='&';
1.800 albertel 5117: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 5118: } else {
1.800 albertel 5119: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 5120: }
5121: }
1.168 albertel 5122: $result=~s/\&$//;
1.265 albertel 5123: $result .= '__END_HASH_REF__';
1.168 albertel 5124: return $result;
5125: }
5126:
5127: sub str2hash {
1.265 albertel 5128: my ($string)=@_;
5129: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
5130: return %$hash;
5131: }
5132:
5133: sub str2hashref {
1.168 albertel 5134: my ($string) = @_;
1.265 albertel 5135:
5136: my %hash;
5137:
5138: if($string !~ /^__HASH_REF__/) {
5139: if (! ($string eq '' || !defined($string))) {
5140: $hash{'error'}='Not hash reference';
5141: }
5142: return (\%hash, $string);
5143: }
5144:
5145: $string =~ s/^__HASH_REF__//;
5146:
5147: while($string !~ /^__END_HASH_REF__/) {
5148: #key
5149: my $key='';
5150: if($string =~ /^__HASH_REF__/) {
5151: ($key, $string)=&str2hashref($string);
5152: if(defined($key->{'error'})) {
5153: $hash{'error'}='Bad data';
5154: return (\%hash, $string);
5155: }
5156: } elsif($string =~ /^__ARRAY_REF__/) {
5157: ($key, $string)=&str2arrayref($string);
5158: if($key->[0] eq 'Array reference error') {
5159: $hash{'error'}='Bad data';
5160: return (\%hash, $string);
5161: }
5162: } else {
5163: $string =~ s/^(.*?)=//;
1.267 albertel 5164: $key=&unescape($1);
1.265 albertel 5165: }
5166: $string =~ s/^=//;
5167:
5168: #value
5169: my $value='';
5170: if($string =~ /^__HASH_REF__/) {
5171: ($value, $string)=&str2hashref($string);
5172: if(defined($value->{'error'})) {
5173: $hash{'error'}='Bad data';
5174: return (\%hash, $string);
5175: }
5176: } elsif($string =~ /^__ARRAY_REF__/) {
5177: ($value, $string)=&str2arrayref($string);
5178: if($value->[0] eq 'Array reference error') {
5179: $hash{'error'}='Bad data';
5180: return (\%hash, $string);
5181: }
5182: } else {
5183: $value=&get_scalar(\$string,'__END_HASH_REF__');
5184: }
5185: $string =~ s/^&//;
5186:
5187: $hash{$key}=$value;
1.204 albertel 5188: }
1.265 albertel 5189:
5190: $string =~ s/^__END_HASH_REF__//;
5191:
5192: return (\%hash, $string);
1.204 albertel 5193: }
5194:
5195: sub str2array {
1.265 albertel 5196: my ($string)=@_;
5197: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
5198: return @$array;
5199: }
5200:
5201: sub str2arrayref {
1.204 albertel 5202: my ($string) = @_;
1.265 albertel 5203: my @array;
5204:
5205: if($string !~ /^__ARRAY_REF__/) {
5206: if (! ($string eq '' || !defined($string))) {
5207: $array[0]='Array reference error';
5208: }
5209: return (\@array, $string);
5210: }
5211:
5212: $string =~ s/^__ARRAY_REF__//;
5213:
5214: while($string !~ /^__END_ARRAY_REF__/) {
5215: my $value='';
5216: if($string =~ /^__HASH_REF__/) {
5217: ($value, $string)=&str2hashref($string);
5218: if(defined($value->{'error'})) {
5219: $array[0] ='Array reference error';
5220: return (\@array, $string);
5221: }
5222: } elsif($string =~ /^__ARRAY_REF__/) {
5223: ($value, $string)=&str2arrayref($string);
5224: if($value->[0] eq 'Array reference error') {
5225: $array[0] ='Array reference error';
5226: return (\@array, $string);
5227: }
5228: } else {
5229: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
5230: }
5231: $string =~ s/^&//;
5232:
5233: push(@array, $value);
1.191 harris41 5234: }
1.265 albertel 5235:
5236: $string =~ s/^__END_ARRAY_REF__//;
5237:
5238: return (\@array, $string);
1.168 albertel 5239: }
5240:
1.167 albertel 5241: # -------------------------------------------------------------------Temp Store
5242:
1.168 albertel 5243: sub tmpreset {
5244: my ($symb,$namespace,$domain,$stuname) = @_;
5245: if (!$symb) {
5246: $symb=&symbread();
1.620 albertel 5247: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5248: }
5249: $symb=escape($symb);
5250:
1.620 albertel 5251: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 5252: $namespace=~s/\//\_/g;
5253: $namespace=~s/\W//g;
5254:
1.620 albertel 5255: if (!$domain) { $domain=$env{'user.domain'}; }
5256: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5257: if ($domain eq 'public' && $stuname eq 'public') {
5258: $stuname=$ENV{'REMOTE_ADDR'};
5259: }
1.1117 foxr 5260: my $path=LONCAPA::tempdir();
1.168 albertel 5261: my %hash;
5262: if (tie(%hash,'GDBM_File',
5263: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5264: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 5265: foreach my $key (keys(%hash)) {
1.180 albertel 5266: if ($key=~ /:$symb/) {
1.168 albertel 5267: delete($hash{$key});
5268: }
5269: }
5270: }
5271: }
5272:
1.167 albertel 5273: sub tmpstore {
1.168 albertel 5274: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
5275:
5276: if (!$symb) {
5277: $symb=&symbread();
1.620 albertel 5278: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5279: }
5280: $symb=escape($symb);
5281:
5282: if (!$namespace) {
5283: # I don't think we would ever want to store this for a course.
5284: # it seems this will only be used if we don't have a course.
1.620 albertel 5285: #$namespace=$env{'request.course.id'};
1.168 albertel 5286: #if (!$namespace) {
1.620 albertel 5287: $namespace=$env{'request.state'};
1.168 albertel 5288: #}
5289: }
5290: $namespace=~s/\//\_/g;
5291: $namespace=~s/\W//g;
1.620 albertel 5292: if (!$domain) { $domain=$env{'user.domain'}; }
5293: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5294: if ($domain eq 'public' && $stuname eq 'public') {
5295: $stuname=$ENV{'REMOTE_ADDR'};
5296: }
1.168 albertel 5297: my $now=time;
5298: my %hash;
1.1117 foxr 5299: my $path=LONCAPA::tempdir();
1.168 albertel 5300: if (tie(%hash,'GDBM_File',
5301: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5302: &GDBM_WRCREAT(),0640)) {
1.168 albertel 5303: $hash{"version:$symb"}++;
5304: my $version=$hash{"version:$symb"};
5305: my $allkeys='';
5306: foreach my $key (keys(%$storehash)) {
5307: $allkeys.=$key.':';
1.591 albertel 5308: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 5309: }
5310: $hash{"$version:$symb:timestamp"}=$now;
5311: $allkeys.='timestamp';
5312: $hash{"$version:keys:$symb"}=$allkeys;
5313: if (untie(%hash)) {
5314: return 'ok';
5315: } else {
5316: return "error:$!";
5317: }
5318: } else {
5319: return "error:$!";
5320: }
5321: }
1.167 albertel 5322:
1.168 albertel 5323: # -----------------------------------------------------------------Temp Restore
1.167 albertel 5324:
1.168 albertel 5325: sub tmprestore {
5326: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 5327:
1.168 albertel 5328: if (!$symb) {
5329: $symb=&symbread();
1.620 albertel 5330: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 5331: }
5332: $symb=escape($symb);
5333:
1.620 albertel 5334: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 5335:
1.620 albertel 5336: if (!$domain) { $domain=$env{'user.domain'}; }
5337: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 5338: if ($domain eq 'public' && $stuname eq 'public') {
5339: $stuname=$ENV{'REMOTE_ADDR'};
5340: }
1.168 albertel 5341: my %returnhash;
5342: $namespace=~s/\//\_/g;
5343: $namespace=~s/\W//g;
5344: my %hash;
1.1117 foxr 5345: my $path=LONCAPA::tempdir();
1.168 albertel 5346: if (tie(%hash,'GDBM_File',
5347: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 5348: &GDBM_READER(),0640)) {
1.168 albertel 5349: my $version=$hash{"version:$symb"};
5350: $returnhash{'version'}=$version;
5351: my $scope;
5352: for ($scope=1;$scope<=$version;$scope++) {
5353: my $vkeys=$hash{"$scope:keys:$symb"};
5354: my @keys=split(/:/,$vkeys);
5355: my $key;
5356: $returnhash{"$scope:keys"}=$vkeys;
5357: foreach $key (@keys) {
1.591 albertel 5358: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
5359: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 5360: }
5361: }
1.168 albertel 5362: if (!(untie(%hash))) {
5363: return "error:$!";
5364: }
5365: } else {
5366: return "error:$!";
5367: }
5368: return %returnhash;
1.167 albertel 5369: }
5370:
1.9 www 5371: # ----------------------------------------------------------------------- Store
5372:
5373: sub store {
1.1172.2.64 raeburn 5374: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5375: my $home='';
5376:
1.168 albertel 5377: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5378:
1.213 www 5379: $symb=&symbclean($symb);
1.122 albertel 5380: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5381:
1.620 albertel 5382: if (!$domain) { $domain=$env{'user.domain'}; }
5383: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5384:
5385: &devalidate($symb,$stuname,$domain);
1.109 www 5386:
5387: $symb=escape($symb);
1.187 www 5388: if (!$namespace) {
1.620 albertel 5389: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5390: return '';
5391: }
5392: }
1.620 albertel 5393: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5394:
5395: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5396: $$storehash{'host'}=$perlvar{'lonHostID'};
5397:
1.12 www 5398: my $namevalue='';
1.800 albertel 5399: foreach my $key (keys(%$storehash)) {
5400: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5401: }
1.12 www 5402: $namevalue=~s/\&$//;
1.187 www 5403: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.1172.2.64 raeburn 5404: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.9 www 5405: }
5406:
1.47 www 5407: # -------------------------------------------------------------- Critical Store
5408:
5409: sub cstore {
1.1172.2.64 raeburn 5410: my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;
1.124 www 5411: my $home='';
5412:
1.168 albertel 5413: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5414:
1.213 www 5415: $symb=&symbclean($symb);
1.122 albertel 5416: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 5417:
1.620 albertel 5418: if (!$domain) { $domain=$env{'user.domain'}; }
5419: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 5420:
5421: &devalidate($symb,$stuname,$domain);
1.109 www 5422:
5423: $symb=escape($symb);
1.187 www 5424: if (!$namespace) {
1.620 albertel 5425: unless ($namespace=$env{'request.course.id'}) {
1.187 www 5426: return '';
5427: }
5428: }
1.620 albertel 5429: if (!$home) { $home=$env{'user.home'}; }
1.447 www 5430:
5431: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
5432: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 5433:
1.47 www 5434: my $namevalue='';
1.800 albertel 5435: foreach my $key (keys(%$storehash)) {
5436: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 5437: }
1.47 www 5438: $namevalue=~s/\&$//;
1.187 www 5439: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 5440: return critical
1.1172.2.64 raeburn 5441: ("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");
1.47 www 5442: }
5443:
1.9 www 5444: # --------------------------------------------------------------------- Restore
5445:
5446: sub restore {
1.124 www 5447: my ($symb,$namespace,$domain,$stuname) = @_;
5448: my $home='';
5449:
1.168 albertel 5450: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 5451:
1.122 albertel 5452: if (!$symb) {
1.1172.2.26 raeburn 5453: return if ($namespace eq 'courserequests');
5454: unless ($symb=escape(&symbread())) { return ''; }
1.122 albertel 5455: } else {
1.1172.2.26 raeburn 5456: unless ($namespace eq 'courserequests') {
5457: $symb=&escape(&symbclean($symb));
5458: }
1.122 albertel 5459: }
1.188 www 5460: if (!$namespace) {
1.620 albertel 5461: unless ($namespace=$env{'request.course.id'}) {
1.188 www 5462: return '';
5463: }
5464: }
1.620 albertel 5465: if (!$domain) { $domain=$env{'user.domain'}; }
5466: if (!$stuname) { $stuname=$env{'user.name'}; }
5467: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 5468: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
5469:
1.12 www 5470: my %returnhash=();
1.800 albertel 5471: foreach my $line (split(/\&/,$answer)) {
5472: my ($name,$value)=split(/\=/,$line);
1.591 albertel 5473: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 5474: }
1.75 www 5475: my $version;
5476: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 5477: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
5478: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 5479: }
1.75 www 5480: }
1.13 www 5481: return %returnhash;
1.34 www 5482: }
5483:
5484: # ---------------------------------------------------------- Course Description
1.1118 foxr 5485: #
5486: #
1.34 www 5487:
5488: sub coursedescription {
1.731 albertel 5489: my ($courseid,$args)=@_;
1.34 www 5490: $courseid=~s/^\///;
1.49 www 5491: $courseid=~s/\_/\//g;
1.34 www 5492: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 5493: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 5494: my $normalid=$cdomain.'_'.$cnum;
5495: # need to always cache even if we get errors otherwise we keep
5496: # trying and trying and trying to get the course description.
5497: my %envhash=();
5498: my %returnhash=();
1.731 albertel 5499:
5500: my $expiretime=600;
5501: if ($env{'request.course.id'} eq $normalid) {
5502: $expiretime=120;
5503: }
5504:
5505: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
5506: if (!$args->{'freshen_cache'}
5507: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
5508: foreach my $key (keys(%env)) {
5509: next if ($key !~ /^\Q$prefix\E(.*)/);
5510: my ($setting) = $1;
5511: $returnhash{$setting} = $env{$key};
5512: }
5513: return %returnhash;
5514: }
5515:
1.1118 foxr 5516: # get the data again
5517:
1.731 albertel 5518: if (!$args->{'one_time'}) {
5519: $envhash{'course.'.$normalid.'.last_cache'}=time;
5520: }
1.811 albertel 5521:
1.34 www 5522: if ($chome ne 'no_host') {
1.302 albertel 5523: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 5524: if (!exists($returnhash{'con_lost'})) {
1.1118 foxr 5525: my $username = $env{'user.name'}; # Defult username
5526: if(defined $args->{'user'}) {
5527: $username = $args->{'user'};
5528: }
1.129 albertel 5529: $returnhash{'home'}= $chome;
5530: $returnhash{'domain'} = $cdomain;
5531: $returnhash{'num'} = $cnum;
1.741 raeburn 5532: if (!defined($returnhash{'type'})) {
5533: $returnhash{'type'} = 'Course';
5534: }
1.130 albertel 5535: while (my ($name,$value) = each %returnhash) {
1.53 www 5536: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 5537: }
1.270 www 5538: $returnhash{'url'}=&clutter($returnhash{'url'});
1.1117 foxr 5539: $returnhash{'fn'}=LONCAPA::tempdir() .
1.1118 foxr 5540: $username.'_'.$cdomain.'_'.$cnum;
1.60 www 5541: $envhash{'course.'.$normalid.'.home'}=$chome;
5542: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
5543: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 5544: }
5545: }
1.731 albertel 5546: if (!$args->{'one_time'}) {
1.949 raeburn 5547: &appenv(\%envhash);
1.731 albertel 5548: }
1.302 albertel 5549: return %returnhash;
1.461 www 5550: }
5551:
1.1080 raeburn 5552: sub update_released_required {
5553: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
5554: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
5555: $cid = $env{'request.course.id'};
5556: $cdom = $env{'course.'.$cid.'.domain'};
5557: $cnum = $env{'course.'.$cid.'.num'};
5558: $chome = $env{'course.'.$cid.'.home'};
5559: }
5560: if ($needsrelease) {
5561: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
5562: my $needsupdate;
5563: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
5564: $needsupdate = 1;
5565: } else {
5566: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
5567: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
5568: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
5569: $needsupdate = 1;
5570: }
5571: }
5572: if ($needsupdate) {
5573: my %needshash = (
5574: 'internal.releaserequired' => $needsrelease,
5575: );
5576: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
5577: if ($putresult eq 'ok') {
5578: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
5579: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
5580: if (ref($crsinfo{$cid}) eq 'HASH') {
5581: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
5582: &courseidput($cdom,\%crsinfo,$chome,'notime');
5583: }
5584: }
5585: }
5586: }
5587: return;
5588: }
5589:
1.461 www 5590: # -------------------------------------------------See if a user is privileged
5591:
5592: sub privileged {
1.1172.2.23 raeburn 5593: my ($username,$domain,$possdomains,$possroles)=@_;
1.1170 droeschl 5594: my $now = time;
1.1172.2.23 raeburn 5595: my $roles;
5596: if (ref($possroles) eq 'ARRAY') {
5597: $roles = $possroles;
5598: } else {
5599: $roles = ['dc','su'];
5600: }
5601: if (ref($possdomains) eq 'ARRAY') {
5602: my %privileged = &privileged_by_domain($possdomains,$roles);
5603: foreach my $dom (@{$possdomains}) {
5604: if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
5605: (ref($privileged{$dom}) eq 'HASH')) {
5606: foreach my $role (@{$roles}) {
5607: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5608: if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
5609: my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
5610: return 1 unless (($end && $end < $now) ||
5611: ($start && $start > $now));
5612: }
5613: }
5614: }
5615: }
5616: }
5617: } else {
5618: my %rolesdump = &dump("roles", $domain, $username) or return 0;
5619: my $now = time;
1.1170 droeschl 5620:
1.1172.2.58 raeburn 5621: for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {
1.1170 droeschl 5622: my ($trole, $tend, $tstart) = split(/_/, $role);
1.1172.2.23 raeburn 5623: if (grep(/^\Q$trole\E$/,@{$roles})) {
5624: return 1 unless ($tend && $tend < $now)
5625: or ($tstart && $tstart > $now);
1.1170 droeschl 5626: }
1.1172.2.23 raeburn 5627: }
5628: }
1.461 www 5629: return 0;
1.9 www 5630: }
1.1 albertel 5631:
1.1172.2.23 raeburn 5632: sub privileged_by_domain {
5633: my ($domains,$roles) = @_;
5634: my %privileged = ();
5635: my $cachetime = 60*60*24;
5636: my $now = time;
5637: unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
5638: return %privileged;
5639: }
5640: foreach my $dom (@{$domains}) {
5641: next if (ref($privileged{$dom}) eq 'HASH');
5642: my $needroles;
5643: foreach my $role (@{$roles}) {
5644: my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
5645: if (defined($cached)) {
5646: if (ref($result) eq 'HASH') {
5647: $privileged{$dom}{$role} = $result;
5648: }
5649: } else {
5650: $needroles = 1;
5651: }
5652: }
5653: if ($needroles) {
5654: my %dompersonnel = &get_domain_roles($dom,$roles);
5655: $privileged{$dom} = {};
5656: foreach my $server (keys(%dompersonnel)) {
5657: if (ref($dompersonnel{$server}) eq 'HASH') {
5658: foreach my $item (keys(%{$dompersonnel{$server}})) {
5659: my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
5660: my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
5661: next if ($end && $end < $now);
5662: $privileged{$dom}{$trole}{$uname.':'.$udom} =
5663: $dompersonnel{$server}{$item};
5664: }
5665: }
5666: }
5667: if (ref($privileged{$dom}) eq 'HASH') {
5668: foreach my $role (@{$roles}) {
5669: if (ref($privileged{$dom}{$role}) eq 'HASH') {
5670: &do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
5671: } else {
5672: my %hash = ();
5673: &do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
5674: }
5675: }
5676: }
5677: }
5678: }
5679: return %privileged;
5680: }
5681:
1.103 harris41 5682: # -------------------------------------------------------- Get user privileges
1.11 www 5683:
5684: sub rolesinit {
1.1169 droeschl 5685: my ($domain, $username) = @_;
5686: my %userroles = ('user.login.time' => time);
5687: my %rolesdump = &dump("roles", $domain, $username) or return \%userroles;
5688:
5689: # firstaccess and timerinterval are related to timed maps/resources.
5690: # also, blocking can be triggered by an activating timer
5691: # it's saved in the user's %env.
5692: my %firstaccess = &dump('firstaccesstimes', $domain, $username);
5693: my %timerinterval = &dump('timerinterval', $domain, $username);
5694: my (%coursetimerstarts, %firstaccchk, %firstaccenv, %coursetimerintervals,
5695: %timerintchk, %timerintenv);
5696:
1.1162 raeburn 5697: foreach my $key (keys(%firstaccess)) {
1.1169 droeschl 5698: my ($cid, $rest) = split(/\0/, $key);
1.1162 raeburn 5699: $coursetimerstarts{$cid}{$rest} = $firstaccess{$key};
5700: }
1.1169 droeschl 5701:
1.1162 raeburn 5702: foreach my $key (keys(%timerinterval)) {
5703: my ($cid,$rest) = split(/\0/,$key);
5704: $coursetimerintervals{$cid}{$rest} = $timerinterval{$key};
5705: }
1.1169 droeschl 5706:
1.11 www 5707: my %allroles=();
1.1162 raeburn 5708: my %allgroups=();
1.11 www 5709:
1.1172.2.58 raeburn 5710: for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
1.1169 droeschl 5711: my $role = $rolesdump{$area};
5712: $area =~ s/\_\w\w$//;
5713:
5714: my ($trole, $tend, $tstart, $group_privs);
5715:
5716: if ($role =~ /^cr/) {
5717: # Custom role, defined by a user
5718: # e.g., user.role.cr/msu/smith/mynewrole
5719: if ($role =~ m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
5720: $trole = $1;
5721: ($tend, $tstart) = split('_', $2);
5722: } else {
5723: $trole = $role;
5724: }
5725: } elsif ($role =~ m|^gr/|) {
5726: # Role of member in a group, defined within a course/community
5727: # e.g., user.role.gr/msu/04935610a19ee4a5fmsul1/leopards
5728: ($trole, $tend, $tstart) = split(/_/, $role);
5729: next if $tstart eq '-1';
5730: ($trole, $group_privs) = split(/\//, $trole);
5731: $group_privs = &unescape($group_privs);
5732: } else {
5733: # Just a normal role, defined in roles.tab
5734: ($trole, $tend, $tstart) = split(/_/,$role);
5735: }
5736:
5737: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
5738: $username);
5739: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
5740:
5741: # role expired or not available yet?
5742: $trole = '' if ($tend != 0 && $tend < $userroles{'user.login.time'}) or
5743: ($tstart != 0 && $tstart > $userroles{'user.login.time'});
5744:
5745: next if $area eq '' or $trole eq '';
5746:
5747: my $spec = "$trole.$area";
5748: my ($tdummy, $tdomain, $trest) = split(/\//, $area);
5749:
5750: if ($trole =~ /^cr\//) {
5751: # Custom role, defined by a user
5752: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5753: } elsif ($trole eq 'gr') {
5754: # Role of a member in a group, defined within a course/community
5755: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
5756: next;
5757: } else {
5758: # Normal role, defined in roles.tab
5759: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5760: }
5761:
5762: my $cid = $tdomain.'_'.$trest;
5763: unless ($firstaccchk{$cid}) {
5764: if (ref($coursetimerstarts{$cid}) eq 'HASH') {
5765: foreach my $item (keys(%{$coursetimerstarts{$cid}})) {
5766: $firstaccenv{'course.'.$cid.'.firstaccess.'.$item} =
5767: $coursetimerstarts{$cid}{$item};
5768: }
5769: }
5770: $firstaccchk{$cid} = 1;
5771: }
5772: unless ($timerintchk{$cid}) {
5773: if (ref($coursetimerintervals{$cid}) eq 'HASH') {
5774: foreach my $item (keys(%{$coursetimerintervals{$cid}})) {
5775: $timerintenv{'course.'.$cid.'.timerinterval.'.$item} =
5776: $coursetimerintervals{$cid}{$item};
1.1162 raeburn 5777: }
1.12 www 5778: }
1.1169 droeschl 5779: $timerintchk{$cid} = 1;
1.191 harris41 5780: }
1.11 www 5781: }
1.1169 droeschl 5782:
1.1172.2.91 raeburn 5783: @userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,
5784: \%allroles, \%allgroups);
1.1169 droeschl 5785: $env{'user.adv'} = $userroles{'user.adv'};
1.1172.2.91 raeburn 5786: $env{'user.rar'} = $userroles{'user.rar'};
1.1169 droeschl 5787:
1.1162 raeburn 5788: return (\%userroles,\%firstaccenv,\%timerintenv);
1.11 www 5789: }
5790:
1.567 raeburn 5791: sub set_arearole {
1.1172.2.19 raeburn 5792: my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
5793: unless ($nolog) {
1.567 raeburn 5794: # log the associated role with the area
1.1172.2.19 raeburn 5795: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
5796: }
1.743 albertel 5797: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 5798: }
5799:
5800: sub custom_roleprivs {
5801: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
5802: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
1.1172.2.40 raeburn 5803: my $homsvr = &homeserver($rauthor,$rdomain);
1.838 albertel 5804: if (&hostname($homsvr) ne '') {
1.567 raeburn 5805: my ($rdummy,$roledef)=
5806: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
5807: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
5808: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
5809: if (defined($syspriv)) {
1.1043 raeburn 5810: if ($trest =~ /^$match_community$/) {
5811: $syspriv =~ s/bre\&S//;
5812: }
1.567 raeburn 5813: $$allroles{'cm./'}.=':'.$syspriv;
5814: $$allroles{$spec.'./'}.=':'.$syspriv;
5815: }
5816: if ($tdomain ne '') {
5817: if (defined($dompriv)) {
5818: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
5819: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
5820: }
5821: if (($trest ne '') && (defined($coursepriv))) {
1.1172.2.89 raeburn 5822: if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
5823: my $rolename = $1;
5824: $coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
5825: }
1.567 raeburn 5826: $$allroles{'cm.'.$area}.=':'.$coursepriv;
5827: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
5828: }
5829: }
5830: }
5831: }
5832: }
5833:
1.1172.2.89 raeburn 5834: sub course_adhocrole_privs {
5835: my ($rolename,$cdom,$cnum,$coursepriv) = @_;
5836: my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
5837: if ($overrides{"internal.adhocpriv.$rolename"}) {
5838: my (%currprivs,%storeprivs);
5839: foreach my $item (split(/:/,$coursepriv)) {
5840: my ($priv,$restrict) = split(/\&/,$item);
5841: $currprivs{$priv} = $restrict;
5842: }
5843: my (%possadd,%possremove,%full);
5844: foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
5845: my ($priv,$restrict)=split(/\&/,$item);
5846: $full{$priv} = $restrict;
5847: }
5848: foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
5849: next if ($item eq '');
5850: my ($rule,$rest) = split(/=/,$item);
5851: next unless (($rule eq 'off') || ($rule eq 'on'));
5852: foreach my $priv (split(/:/,$rest)) {
5853: if ($priv ne '') {
5854: if ($rule eq 'off') {
5855: $possremove{$priv} = 1;
5856: } else {
5857: $possadd{$priv} = 1;
5858: }
5859: }
5860: }
5861: }
5862: foreach my $priv (sort(keys(%full))) {
5863: if (exists($currprivs{$priv})) {
5864: unless (exists($possremove{$priv})) {
5865: $storeprivs{$priv} = $currprivs{$priv};
5866: }
5867: } elsif (exists($possadd{$priv})) {
5868: $storeprivs{$priv} = $full{$priv};
5869: }
5870: }
5871: $coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
5872: }
5873: return $coursepriv;
5874: }
5875:
1.678 raeburn 5876: sub group_roleprivs {
5877: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
5878: my $access = 1;
5879: my $now = time;
5880: if (($tend!=0) && ($tend<$now)) { $access = 0; }
5881: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
5882: if ($access) {
1.811 albertel 5883: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 5884: $$allgroups{$course}{$group} .=':'.$group_privs;
5885: }
5886: }
1.567 raeburn 5887:
5888: sub standard_roleprivs {
5889: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
5890: if (defined($pr{$trole.':s'})) {
5891: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
5892: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
5893: }
5894: if ($tdomain ne '') {
5895: if (defined($pr{$trole.':d'})) {
5896: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5897: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
5898: }
5899: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
5900: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
5901: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
5902: }
5903: }
5904: }
5905:
5906: sub set_userprivs {
1.1064 raeburn 5907: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 5908: my $author=0;
5909: my $adv=0;
1.1172.2.91 raeburn 5910: my $rar=0;
1.678 raeburn 5911: my %grouproles = ();
5912: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 5913: my @groupkeys;
1.1000 raeburn 5914: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 5915: push(@groupkeys,$role);
5916: }
5917: if (ref($groups_roles) eq 'HASH') {
5918: foreach my $key (keys(%{$groups_roles})) {
5919: unless (grep(/^\Q$key\E$/,@groupkeys)) {
5920: push(@groupkeys,$key);
5921: }
5922: }
5923: }
5924: if (@groupkeys > 0) {
5925: foreach my $role (@groupkeys) {
5926: my ($trole,$area,$sec,$extendedarea);
5927: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
5928: $trole = $1;
5929: $area = $2;
5930: $sec = $3;
5931: $extendedarea = $area.$sec;
5932: if (exists($$allgroups{$area})) {
5933: foreach my $group (keys(%{$$allgroups{$area}})) {
5934: my $spec = $trole.'.'.$extendedarea;
5935: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 5936: $$allgroups{$area}{$group};
1.1064 raeburn 5937: }
1.678 raeburn 5938: }
5939: }
5940: }
5941: }
5942: }
1.800 albertel 5943: foreach my $group (keys(%grouproles)) {
5944: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 5945: }
1.800 albertel 5946: foreach my $role (keys(%{$allroles})) {
5947: my %thesepriv;
1.941 raeburn 5948: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 5949: foreach my $item (split(/:/,$$allroles{$role})) {
5950: if ($item ne '') {
5951: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 5952: if ($restrictions eq '') {
5953: $thesepriv{$privilege}='F';
5954: } elsif ($thesepriv{$privilege} ne 'F') {
5955: $thesepriv{$privilege}.=$restrictions;
5956: }
5957: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
1.1172.2.91 raeburn 5958: if ($thesepriv{'rar'} eq 'F') { $rar=1; }
1.567 raeburn 5959: }
5960: }
5961: my $thesestr='';
1.1104 raeburn 5962: foreach my $priv (sort(keys(%thesepriv))) {
1.800 albertel 5963: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
5964: }
5965: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 5966: }
1.1172.2.91 raeburn 5967: return ($author,$adv,$rar);
1.567 raeburn 5968: }
5969:
1.994 raeburn 5970: sub role_status {
1.1104 raeburn 5971: my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 5972: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
1.1172.2.40 raeburn 5973: my ($one,$two) = split(m{\./},$rolekey,2);
5974: (undef,undef,$$role) = split(/\./,$one,3);
1.994 raeburn 5975: unless (!defined($$role) || $$role eq '') {
1.1172.2.40 raeburn 5976: $$where = '/'.$two;
1.994 raeburn 5977: $$trolecode=$$role.'.'.$$where;
5978: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
5979: $$tstatus='is';
1.1104 raeburn 5980: if ($$tstart && $$tstart>$update) {
1.994 raeburn 5981: $$tstatus='future';
1.1034 raeburn 5982: if ($$tstart<$now) {
5983: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 5984: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 5985: my (%allroles,%allgroups,$group_privs,
5986: %groups_roles,@rolecodes);
1.1002 raeburn 5987: my %userroles = (
5988: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
5989: );
1.1064 raeburn 5990: @rolecodes = ('cm');
1.1002 raeburn 5991: my $spec=$$role.'.'.$$where;
5992: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
5993: if ($$role =~ /^cr\//) {
5994: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 5995: push(@rolecodes,'cr');
1.1002 raeburn 5996: } elsif ($$role eq 'gr') {
1.1064 raeburn 5997: push(@rolecodes,$$role);
1.1002 raeburn 5998: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
5999: $env{'user.name'});
1.1064 raeburn 6000: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 6001: (undef,my $group_privs) = split(/\//,$trole);
6002: $group_privs = &unescape($group_privs);
6003: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 6004: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
1.1104 raeburn 6005: &get_groups_roles($tdomain,$trest,
6006: \%course_roles,\@rolecodes,
6007: \%groups_roles);
1.1002 raeburn 6008: } else {
1.1064 raeburn 6009: push(@rolecodes,$$role);
1.1002 raeburn 6010: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
6011: }
1.1172.2.91 raeburn 6012: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,
6013: \%groups_roles);
1.1064 raeburn 6014: &appenv(\%userroles,\@rolecodes);
1.1172.2.92 raeburn 6015: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1002 raeburn 6016: }
6017: }
1.1034 raeburn 6018: $$tstatus = 'is';
1.1002 raeburn 6019: }
1.994 raeburn 6020: }
6021: if ($$tend) {
1.1104 raeburn 6022: if ($$tend<$update) {
1.994 raeburn 6023: $$tstatus='expired';
6024: } elsif ($$tend<$now) {
6025: $$tstatus='will_not';
6026: }
6027: }
6028: }
6029: }
6030: }
6031:
1.1104 raeburn 6032: sub get_groups_roles {
6033: my ($cdom,$rest,$cdom_courseroles,$rolecodes,$groups_roles) = @_;
6034: return unless((ref($cdom_courseroles) eq 'HASH') &&
6035: (ref($rolecodes) eq 'ARRAY') &&
6036: (ref($groups_roles) eq 'HASH'));
6037: if (keys(%{$cdom_courseroles}) > 0) {
6038: my ($cnum) = ($rest =~ /^($match_courseid)/);
6039: if ($cdom ne '' && $cnum ne '') {
6040: foreach my $key (keys(%{$cdom_courseroles})) {
6041: if ($key =~ /^\Q$cnum\E:\Q$cdom\E:([^:]+):?([^:]*)/) {
6042: my $crsrole = $1;
6043: my $crssec = $2;
6044: if ($crsrole =~ /^cr/) {
6045: unless (grep(/^cr$/,@{$rolecodes})) {
6046: push(@{$rolecodes},'cr');
6047: }
6048: } else {
6049: unless(grep(/^\Q$crsrole\E$/,@{$rolecodes})) {
6050: push(@{$rolecodes},$crsrole);
6051: }
6052: }
6053: my $rolekey = "$crsrole./$cdom/$cnum";
6054: if ($crssec ne '') {
6055: $rolekey .= "/$crssec";
6056: }
6057: $rolekey .= './';
6058: $groups_roles->{$rolekey} = $rolecodes;
6059: }
6060: }
6061: }
6062: }
6063: return;
6064: }
6065:
6066: sub delete_env_groupprivs {
6067: my ($where,$courseroles,$possroles) = @_;
6068: return unless((ref($courseroles) eq 'HASH') && (ref($possroles) eq 'ARRAY'));
6069: my ($dummy,$udom,$uname,$group) = split(/\//,$where);
6070: unless (ref($courseroles->{$udom}) eq 'HASH') {
6071: %{$courseroles->{$udom}} =
6072: &get_my_roles('','','userroles',['active'],
6073: $possroles,[$udom],1);
6074: }
6075: if (ref($courseroles->{$udom}) eq 'HASH') {
6076: foreach my $item (keys(%{$courseroles->{$udom}})) {
6077: my ($cnum,$cdom,$crsrole,$crssec) = split(/:/,$item);
6078: my $area = '/'.$cdom.'/'.$cnum;
6079: my $privkey = "user.priv.$crsrole.$area";
6080: if ($crssec ne '') {
6081: $privkey .= '/'.$crssec;
6082: }
6083: $privkey .= ".$area/$group";
6084: &Apache::lonnet::delenv($privkey,undef,[$crsrole]);
6085: }
6086: }
6087: return;
6088: }
6089:
1.994 raeburn 6090: sub check_adhoc_privs {
1.1172.2.86 raeburn 6091: my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;
1.994 raeburn 6092: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
1.1172.2.86 raeburn 6093: if ($sec) {
6094: $cckey .= '/'.$sec;
6095: }
1.1172.2.9 raeburn 6096: my $setprivs;
1.994 raeburn 6097: if ($env{$cckey}) {
6098: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1104 raeburn 6099: &role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 6100: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
1.1172.2.86 raeburn 6101: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1172.2.9 raeburn 6102: $setprivs = 1;
1.994 raeburn 6103: }
6104: } else {
1.1172.2.87 raeburn 6105: &set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);
1.1172.2.9 raeburn 6106: $setprivs = 1;
1.994 raeburn 6107: }
1.1172.2.9 raeburn 6108: return $setprivs;
1.994 raeburn 6109: }
6110:
6111: sub set_adhoc_privileges {
1.1172.2.84 raeburn 6112: # role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role
1.1172.2.86 raeburn 6113: my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;
1.994 raeburn 6114: my $area = '/'.$dcdom.'/'.$pickedcourse;
1.1172.2.86 raeburn 6115: if ($sec ne '') {
6116: $area .= '/'.$sec;
6117: }
1.994 raeburn 6118: my $spec = $role.'.'.$area;
6119: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
1.1172.2.19 raeburn 6120: $env{'user.name'},1);
1.1172.2.84 raeburn 6121: my %rolehash = ();
1.1172.2.89 raeburn 6122: if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {
6123: my $rolename = $1;
1.1172.2.84 raeburn 6124: &custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
1.1172.2.89 raeburn 6125: my %domdef = &get_domain_defaults($dcdom);
6126: if (ref($domdef{'adhocroles'}) eq 'HASH') {
6127: if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
6128: &appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
6129: }
6130: }
1.1172.2.84 raeburn 6131: } else {
6132: &standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
6133: }
1.1172.2.91 raeburn 6134: my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
1.994 raeburn 6135: &appenv(\%userroles,[$role,'cm']);
1.1172.2.92 raeburn 6136: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
1.1088 raeburn 6137: unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
6138: &appenv( {'request.role' => $spec,
6139: 'request.role.domain' => $dcdom,
1.1172.2.89 raeburn 6140: 'request.course.sec' => $sec,
1.1088 raeburn 6141: }
6142: );
6143: my $tadv=0;
6144: if (&allowed('adv') eq 'F') { $tadv=1; }
6145: &appenv({'request.role.adv' => $tadv});
6146: }
1.994 raeburn 6147: }
6148:
1.12 www 6149: # --------------------------------------------------------------- get interface
6150:
6151: sub get {
1.131 albertel 6152: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6153: my $items='';
1.800 albertel 6154: foreach my $item (@$storearr) {
6155: $items.=&escape($item).'&';
1.191 harris41 6156: }
1.12 www 6157: $items=~s/\&$//;
1.620 albertel 6158: if (!$udomain) { $udomain=$env{'user.domain'}; }
6159: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 6160: my $uhome=&homeserver($uname,$udomain);
6161:
1.133 albertel 6162: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6163: my @pairs=split(/\&/,$rep);
1.273 albertel 6164: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
6165: return @pairs;
6166: }
1.15 www 6167: my %returnhash=();
1.42 www 6168: my $i=0;
1.800 albertel 6169: foreach my $item (@$storearr) {
6170: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6171: $i++;
1.191 harris41 6172: }
1.15 www 6173: return %returnhash;
1.27 www 6174: }
6175:
6176: # --------------------------------------------------------------- del interface
6177:
6178: sub del {
1.133 albertel 6179: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 6180: my $items='';
1.800 albertel 6181: foreach my $item (@$storearr) {
6182: $items.=&escape($item).'&';
1.191 harris41 6183: }
1.984 neumanie 6184:
1.27 www 6185: $items=~s/\&$//;
1.620 albertel 6186: if (!$udomain) { $udomain=$env{'user.domain'}; }
6187: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6188: my $uhome=&homeserver($uname,$udomain);
6189: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 6190: }
6191:
6192: # -------------------------------------------------------------- dump interface
6193:
1.1172.2.22 raeburn 6194: sub unserialize {
6195: my ($rep, $escapedkeys) = @_;
6196:
6197: return {} if $rep =~ /^error/;
6198:
6199: my %returnhash=();
6200: foreach my $item (split(/\&/,$rep)) {
6201: my ($key, $value) = split(/=/, $item, 2);
6202: $key = unescape($key) unless $escapedkeys;
6203: next if $key =~ /^error: 2 /;
6204: $returnhash{$key} = &thaw_unescape($value);
6205: }
6206: return \%returnhash;
6207: }
6208:
6209: # see Lond::dump_with_regexp
6210: # if $escapedkeys hash keys won't get unescaped.
1.15 www 6211: sub dump {
1.1172.2.22 raeburn 6212: my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
1.755 albertel 6213: if (!$udomain) { $udomain=$env{'user.domain'}; }
6214: if (!$uname) { $uname=$env{'user.name'}; }
6215: my $uhome=&homeserver($uname,$udomain);
1.1167 droeschl 6216:
1.1172.2.55 raeburn 6217: if ($regexp) {
6218: $regexp=&escape($regexp);
6219: } else {
6220: $regexp='.';
6221: }
1.1172.2.22 raeburn 6222: if (grep { $_ eq $uhome } ¤t_machine_ids()) {
6223: # user is hosted on this machine
1.1172.2.55 raeburn 6224: my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,
1.1172.2.27 raeburn 6225: $uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
1.1172.2.22 raeburn 6226: return %{&unserialize($reply, $escapedkeys)};
6227: }
1.1166 raeburn 6228: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
1.755 albertel 6229: my @pairs=split(/\&/,$rep);
6230: my %returnhash=();
1.1098 foxr 6231: if (!($rep =~ /^error/ )) {
6232: foreach my $item (@pairs) {
6233: my ($key,$value)=split(/=/,$item,2);
1.1172.2.22 raeburn 6234: $key = &unescape($key) unless ($escapedkeys);
1.1098 foxr 6235: next if ($key =~ /^error: 2 /);
6236: $returnhash{$key}=&thaw_unescape($value);
6237: }
1.755 albertel 6238: }
6239: return %returnhash;
1.407 www 6240: }
6241:
1.1098 foxr 6242:
1.717 albertel 6243: # --------------------------------------------------------- dumpstore interface
6244:
6245: sub dumpstore {
6246: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.1172.2.22 raeburn 6247: # same as dump but keys must be escaped. They may contain colon separated
6248: # lists of values that may themself contain colons (e.g. symbs).
6249: return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
1.717 albertel 6250: }
6251:
1.407 www 6252: # -------------------------------------------------------------- keys interface
6253:
6254: sub getkeys {
6255: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 6256: if (!$udomain) { $udomain=$env{'user.domain'}; }
6257: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 6258: my $uhome=&homeserver($uname,$udomain);
6259: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
6260: my @keyarray=();
1.800 albertel 6261: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 6262: next if ($key =~ /^error: 2 /);
1.800 albertel 6263: push(@keyarray,&unescape($key));
1.407 www 6264: }
6265: return @keyarray;
1.318 matthew 6266: }
6267:
1.319 matthew 6268: # --------------------------------------------------------------- currentdump
6269: sub currentdump {
1.328 matthew 6270: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 6271: $courseid = $env{'request.course.id'} if (! defined($courseid));
6272: $sdom = $env{'user.domain'} if (! defined($sdom));
6273: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 6274: my $uhome = &homeserver($sname,$sdom);
1.1172.2.50 raeburn 6275: my $rep;
6276:
6277: if (grep { $_ eq $uhome } current_machine_ids()) {
6278: $rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
6279: $courseid)));
6280: } else {
6281: $rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
6282: }
6283:
1.318 matthew 6284: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 6285: #
1.318 matthew 6286: my %returnhash=();
1.319 matthew 6287: #
6288: if ($rep eq "unknown_cmd") {
6289: # an old lond will not know currentdump
6290: # Do a dump and make it look like a currentdump
1.822 albertel 6291: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 6292: return if ($tmp[0] =~ /^(error:|no_such_host)/);
6293: my %hash = @tmp;
6294: @tmp=();
1.424 matthew 6295: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 6296: } else {
6297: my @pairs=split(/\&/,$rep);
1.800 albertel 6298: foreach my $pair (@pairs) {
6299: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 6300: my ($symb,$param) = split(/:/,$key);
6301: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 6302: &thaw_unescape($value);
1.319 matthew 6303: }
1.191 harris41 6304: }
1.12 www 6305: return %returnhash;
1.424 matthew 6306: }
6307:
6308: sub convert_dump_to_currentdump{
6309: my %hash = %{shift()};
6310: my %returnhash;
6311: # Code ripped from lond, essentially. The only difference
6312: # here is the unescaping done by lonnet::dump(). Conceivably
6313: # we might run in to problems with parameter names =~ /^v\./
6314: while (my ($key,$value) = each(%hash)) {
6315: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 6316: $symb = &unescape($symb);
6317: $param = &unescape($param);
1.424 matthew 6318: next if ($v eq 'version' || $symb eq 'keys');
6319: next if (exists($returnhash{$symb}) &&
6320: exists($returnhash{$symb}->{$param}) &&
6321: $returnhash{$symb}->{'v.'.$param} > $v);
6322: $returnhash{$symb}->{$param}=$value;
6323: $returnhash{$symb}->{'v.'.$param}=$v;
6324: }
6325: #
6326: # Remove all of the keys in the hashes which keep track of
6327: # the version of the parameter.
6328: while (my ($symb,$param_hash) = each(%returnhash)) {
6329: # use a foreach because we are going to delete from the hash.
6330: foreach my $key (keys(%$param_hash)) {
6331: delete($param_hash->{$key}) if ($key =~ /^v\./);
6332: }
6333: }
6334: return \%returnhash;
1.12 www 6335: }
6336:
1.627 albertel 6337: # ------------------------------------------------------ critical inc interface
6338:
6339: sub cinc {
6340: return &inc(@_,'critical');
6341: }
6342:
1.449 matthew 6343: # --------------------------------------------------------------- inc interface
6344:
6345: sub inc {
1.627 albertel 6346: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 6347: if (!$udomain) { $udomain=$env{'user.domain'}; }
6348: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 6349: my $uhome=&homeserver($uname,$udomain);
6350: my $items='';
6351: if (! ref($store)) {
6352: # got a single value, so use that instead
6353: $items = &escape($store).'=&';
6354: } elsif (ref($store) eq 'SCALAR') {
6355: $items = &escape($$store).'=&';
6356: } elsif (ref($store) eq 'ARRAY') {
6357: $items = join('=&',map {&escape($_);} @{$store});
6358: } elsif (ref($store) eq 'HASH') {
6359: while (my($key,$value) = each(%{$store})) {
6360: $items.= &escape($key).'='.&escape($value).'&';
6361: }
6362: }
6363: $items=~s/\&$//;
1.627 albertel 6364: if ($critical) {
6365: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
6366: } else {
6367: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
6368: }
1.449 matthew 6369: }
6370:
1.12 www 6371: # --------------------------------------------------------------- put interface
6372:
6373: sub put {
1.134 albertel 6374: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6375: if (!$udomain) { $udomain=$env{'user.domain'}; }
6376: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6377: my $uhome=&homeserver($uname,$udomain);
1.12 www 6378: my $items='';
1.800 albertel 6379: foreach my $item (keys(%$storehash)) {
6380: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6381: }
1.12 www 6382: $items=~s/\&$//;
1.134 albertel 6383: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 6384: }
6385:
1.631 albertel 6386: # ------------------------------------------------------------ newput interface
6387:
6388: sub newput {
6389: my ($namespace,$storehash,$udomain,$uname)=@_;
6390: if (!$udomain) { $udomain=$env{'user.domain'}; }
6391: if (!$uname) { $uname=$env{'user.name'}; }
6392: my $uhome=&homeserver($uname,$udomain);
6393: my $items='';
6394: foreach my $key (keys(%$storehash)) {
6395: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6396: }
6397: $items=~s/\&$//;
6398: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
6399: }
6400:
6401: # --------------------------------------------------------- putstore interface
6402:
1.524 raeburn 6403: sub putstore {
1.1172.2.59 raeburn 6404: my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;
1.620 albertel 6405: if (!$udomain) { $udomain=$env{'user.domain'}; }
6406: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 6407: my $uhome=&homeserver($uname,$udomain);
6408: my $items='';
1.715 albertel 6409: foreach my $key (keys(%$storehash)) {
6410: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 6411: }
1.715 albertel 6412: $items=~s/\&$//;
1.716 albertel 6413: my $esc_symb=&escape($symb);
6414: my $esc_v=&escape($version);
1.715 albertel 6415: my $reply =
1.716 albertel 6416: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 6417: $uhome);
1.1172.2.59 raeburn 6418: if (($tolog) && ($reply eq 'ok')) {
6419: my $namevalue='';
6420: foreach my $key (keys(%{$storehash})) {
6421: $namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
6422: }
6423: $namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
6424: '&host='.&escape($perlvar{'lonHostID'}).
6425: '&version='.$esc_v.
6426: '&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
6427: &Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
6428: }
1.715 albertel 6429: if ($reply eq 'unknown_cmd') {
1.716 albertel 6430: # gfall back to way things use to be done
1.715 albertel 6431: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
6432: $uname);
1.524 raeburn 6433: }
1.715 albertel 6434: return $reply;
6435: }
6436:
6437: sub old_putstore {
1.716 albertel 6438: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
6439: if (!$udomain) { $udomain=$env{'user.domain'}; }
6440: if (!$uname) { $uname=$env{'user.name'}; }
6441: my $uhome=&homeserver($uname,$udomain);
6442: my %newstorehash;
1.800 albertel 6443: foreach my $item (keys(%$storehash)) {
6444: my $key = $version.':'.&escape($symb).':'.$item;
6445: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 6446: }
6447: my $items='';
6448: my %allitems = ();
1.800 albertel 6449: foreach my $item (keys(%newstorehash)) {
6450: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 6451: my $key = $1.':keys:'.$2;
6452: $allitems{$key} .= $3.':';
6453: }
1.800 albertel 6454: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 6455: }
1.800 albertel 6456: foreach my $item (keys(%allitems)) {
6457: $allitems{$item} =~ s/\:$//;
6458: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 6459: }
6460: $items=~s/\&$//;
6461: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 6462: }
6463:
1.47 www 6464: # ------------------------------------------------------ critical put interface
6465:
6466: sub cput {
1.134 albertel 6467: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 6468: if (!$udomain) { $udomain=$env{'user.domain'}; }
6469: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 6470: my $uhome=&homeserver($uname,$udomain);
1.47 www 6471: my $items='';
1.800 albertel 6472: foreach my $item (keys(%$storehash)) {
6473: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 6474: }
1.47 www 6475: $items=~s/\&$//;
1.134 albertel 6476: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6477: }
6478:
6479: # -------------------------------------------------------------- eget interface
6480:
6481: sub eget {
1.133 albertel 6482: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 6483: my $items='';
1.800 albertel 6484: foreach my $item (@$storearr) {
6485: $items.=&escape($item).'&';
1.191 harris41 6486: }
1.12 www 6487: $items=~s/\&$//;
1.620 albertel 6488: if (!$udomain) { $udomain=$env{'user.domain'}; }
6489: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 6490: my $uhome=&homeserver($uname,$udomain);
6491: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 6492: my @pairs=split(/\&/,$rep);
6493: my %returnhash=();
1.42 www 6494: my $i=0;
1.800 albertel 6495: foreach my $item (@$storearr) {
6496: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 6497: $i++;
1.191 harris41 6498: }
1.12 www 6499: return %returnhash;
6500: }
6501:
1.667 albertel 6502: # ------------------------------------------------------------ tmpput interface
6503: sub tmpput {
1.802 raeburn 6504: my ($storehash,$server,$context)=@_;
1.667 albertel 6505: my $items='';
1.800 albertel 6506: foreach my $item (keys(%$storehash)) {
6507: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 6508: }
6509: $items=~s/\&$//;
1.802 raeburn 6510: if (defined($context)) {
6511: $items .= ':'.&escape($context);
6512: }
1.667 albertel 6513: return &reply("tmpput:$items",$server);
6514: }
6515:
6516: # ------------------------------------------------------------ tmpget interface
6517: sub tmpget {
1.688 albertel 6518: my ($token,$server)=@_;
6519: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
6520: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 6521: my %returnhash;
1.1172.2.85 raeburn 6522: if ($rep =~ /^(con_lost|error|no_such_host)/i) {
6523: return %returnhash;
6524: }
1.667 albertel 6525: foreach my $item (split(/\&/,$rep)) {
6526: my ($key,$value)=split(/=/,$item);
6527: $returnhash{&unescape($key)}=&thaw_unescape($value);
6528: }
6529: return %returnhash;
6530: }
6531:
1.1113 raeburn 6532: # ------------------------------------------------------------ tmpdel interface
1.688 albertel 6533: sub tmpdel {
6534: my ($token,$server)=@_;
6535: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
6536: return &reply("tmpdel:$token",$server);
6537: }
6538:
1.1172.2.13 raeburn 6539: # ------------------------------------------------------------ get_timebased_id
6540:
6541: sub get_timebased_id {
6542: my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
6543: $maxtries) = @_;
6544: my ($newid,$error,$dellock);
6545: unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
6546: return ('','ok','invalid call to get suffix');
6547: }
6548:
6549: # set defaults for any optional args for which values were not supplied
6550: if ($who eq '') {
6551: $who = $env{'user.name'}.':'.$env{'user.domain'};
6552: }
6553: if (!$locktries) {
6554: $locktries = 3;
6555: }
6556: if (!$maxtries) {
6557: $maxtries = 10;
6558: }
6559:
6560: if (($cdom eq '') || ($cnum eq '')) {
6561: if ($env{'request.course.id'}) {
6562: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
6563: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
6564: }
6565: if (($cdom eq '') || ($cnum eq '')) {
6566: return ('','ok','call to get suffix not in course context');
6567: }
6568: }
6569:
6570: # construct locking item
6571: my $lockhash = {
6572: $prefix."\0".'locked_'.$keyid => $who,
6573: };
6574: my $tries = 0;
6575:
6576: # attempt to get lock on nohist_$namespace file
6577: my $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
6578: while (($gotlock ne 'ok') && $tries <$locktries) {
6579: $tries ++;
6580: sleep 1;
6581: $gotlock = &Apache::lonnet::newput('nohist_'.$namespace,$lockhash,$cdom,$cnum);
6582: }
6583:
6584: # attempt to get unique identifier, based on current timestamp
6585: if ($gotlock eq 'ok') {
6586: my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
6587: my $id = time;
6588: $newid = $id;
1.1172.2.56 raeburn 6589: if ($idtype eq 'addcode') {
6590: $newid .= &sixnum_code();
6591: }
1.1172.2.13 raeburn 6592: my $idtries = 0;
6593: while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
6594: if ($idtype eq 'concat') {
6595: $newid = $id.$idtries;
1.1172.2.56 raeburn 6596: } elsif ($idtype eq 'addcode') {
6597: $newid = $newid.&sixnum_code();
1.1172.2.13 raeburn 6598: } else {
6599: $newid ++;
6600: }
6601: $idtries ++;
6602: }
6603: if (!exists($inuse{$prefix."\0".$newid})) {
6604: my %new_item = (
6605: $prefix."\0".$newid => $who,
6606: );
6607: my $putresult = &Apache::lonnet::put('nohist_'.$namespace,\%new_item,
6608: $cdom,$cnum);
6609: if ($putresult ne 'ok') {
6610: undef($newid);
6611: $error = 'error saving new item: '.$putresult;
6612: }
6613: } else {
1.1172.2.56 raeburn 6614: undef($newid);
1.1172.2.13 raeburn 6615: $error = ('error: no unique suffix available for the new item ');
6616: }
6617: # remove lock
6618: my @del_lock = ($prefix."\0".'locked_'.$keyid);
6619: $dellock = &Apache::lonnet::del('nohist_'.$namespace,\@del_lock,$cdom,$cnum);
6620: } else {
6621: $error = "error: could not obtain lockfile\n";
6622: $dellock = 'ok';
1.1172.2.58 raeburn 6623: if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
6624: $dellock = 'nolock';
6625: }
1.1172.2.13 raeburn 6626: }
6627: return ($newid,$dellock,$error);
6628: }
6629:
1.1172.2.56 raeburn 6630: sub sixnum_code {
6631: my $code;
6632: for (0..6) {
6633: $code .= int( rand(9) );
6634: }
6635: return $code;
6636: }
6637:
1.765 albertel 6638: # -------------------------------------------------- portfolio access checking
6639:
6640: sub portfolio_access {
1.1172.2.77 raeburn 6641: my ($requrl,$clientip) = @_;
1.765 albertel 6642: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
1.1172.2.77 raeburn 6643: my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);
1.814 raeburn 6644: if ($result) {
6645: my %setters;
6646: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6647: my ($startblock,$endblock) =
6648: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
6649: if ($startblock && $endblock) {
6650: return 'B';
6651: }
6652: } else {
6653: my ($startblock,$endblock) =
6654: &Apache::loncommon::blockcheck(\%setters,'port');
6655: if ($startblock && $endblock) {
6656: return 'B';
6657: }
6658: }
6659: }
1.765 albertel 6660: if ($result eq 'ok') {
1.766 albertel 6661: return 'F';
1.765 albertel 6662: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 6663: return 'A';
1.765 albertel 6664: }
1.766 albertel 6665: return '';
1.765 albertel 6666: }
6667:
6668: sub get_portfolio_access {
1.1172.2.77 raeburn 6669: my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;
1.767 albertel 6670:
6671: if (!ref($access_hash)) {
6672: my $current_perms = &get_portfile_permissions($udom,$unum);
6673: my %access_controls = &get_access_controls($current_perms,$group,
6674: $file_name);
6675: $access_hash = $access_controls{$file_name};
6676: }
6677:
1.1172.2.77 raeburn 6678: my ($public,$guest,@domains,@users,@courses,@groups,@ips);
1.765 albertel 6679: my $now = time;
6680: if (ref($access_hash) eq 'HASH') {
6681: foreach my $key (keys(%{$access_hash})) {
6682: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6683: if ($start > $now) {
6684: next;
6685: }
6686: if ($end && $end<$now) {
6687: next;
6688: }
6689: if ($scope eq 'public') {
6690: $public = $key;
6691: last;
6692: } elsif ($scope eq 'guest') {
6693: $guest = $key;
6694: } elsif ($scope eq 'domains') {
6695: push(@domains,$key);
6696: } elsif ($scope eq 'users') {
6697: push(@users,$key);
6698: } elsif ($scope eq 'course') {
6699: push(@courses,$key);
6700: } elsif ($scope eq 'group') {
6701: push(@groups,$key);
1.1172.2.77 raeburn 6702: } elsif ($scope eq 'ip') {
6703: push(@ips,$key);
1.765 albertel 6704: }
6705: }
6706: if ($public) {
6707: return 'ok';
1.1172.2.77 raeburn 6708: } elsif (@ips > 0) {
6709: my $allowed;
6710: foreach my $ipkey (@ips) {
6711: if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
6712: if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
6713: $allowed = 1;
6714: last;
6715: }
6716: }
6717: }
6718: if ($allowed) {
6719: return 'ok';
6720: }
1.765 albertel 6721: }
6722: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
6723: if ($guest) {
6724: return $guest;
6725: }
6726: } else {
6727: if (@domains > 0) {
6728: foreach my $domkey (@domains) {
6729: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
6730: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
6731: return 'ok';
6732: }
6733: }
6734: }
6735: }
6736: if (@users > 0) {
6737: foreach my $userkey (@users) {
1.865 raeburn 6738: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
6739: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
6740: if (ref($item) eq 'HASH') {
6741: if (($item->{'uname'} eq $env{'user.name'}) &&
6742: ($item->{'udom'} eq $env{'user.domain'})) {
6743: return 'ok';
6744: }
6745: }
6746: }
6747: }
1.765 albertel 6748: }
6749: }
6750: my %roleshash;
6751: my @courses_and_groups = @courses;
6752: push(@courses_and_groups,@groups);
6753: if (@courses_and_groups > 0) {
6754: my (%allgroups,%allroles);
6755: my ($start,$end,$role,$sec,$group);
6756: foreach my $envkey (%env) {
1.1060 raeburn 6757: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 6758: my $cid = $2.'_'.$3;
6759: if ($1 eq 'gr') {
6760: $group = $4;
6761: $allgroups{$cid}{$group} = $env{$envkey};
6762: } else {
6763: if ($4 eq '') {
6764: $sec = 'none';
6765: } else {
6766: $sec = $4;
6767: }
6768: $allroles{$cid}{$1}{$sec} = $env{$envkey};
6769: }
1.811 albertel 6770: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 6771: my $cid = $2.'_'.$3;
6772: if ($4 eq '') {
6773: $sec = 'none';
6774: } else {
6775: $sec = $4;
6776: }
6777: $allroles{$cid}{$1}{$sec} = $env{$envkey};
6778: }
6779: }
6780: if (keys(%allroles) == 0) {
6781: return;
6782: }
6783: foreach my $key (@courses_and_groups) {
6784: my %content = %{$$access_hash{$key}};
6785: my $cnum = $content{'number'};
6786: my $cdom = $content{'domain'};
6787: my $cid = $cdom.'_'.$cnum;
6788: if (!exists($allroles{$cid})) {
6789: next;
6790: }
6791: foreach my $role_id (keys(%{$content{'roles'}})) {
6792: my @sections = @{$content{'roles'}{$role_id}{'section'}};
6793: my @groups = @{$content{'roles'}{$role_id}{'group'}};
6794: my @status = @{$content{'roles'}{$role_id}{'access'}};
6795: my @roles = @{$content{'roles'}{$role_id}{'role'}};
6796: foreach my $role (keys(%{$allroles{$cid}})) {
6797: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
6798: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
6799: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
6800: if (grep/^all$/,@sections) {
6801: return 'ok';
6802: } else {
6803: if (grep/^$sec$/,@sections) {
6804: return 'ok';
6805: }
6806: }
6807: }
6808: }
6809: if (keys(%{$allgroups{$cid}}) == 0) {
6810: if (grep/^none$/,@groups) {
6811: return 'ok';
6812: }
6813: } else {
6814: if (grep/^all$/,@groups) {
6815: return 'ok';
6816: }
6817: foreach my $group (keys(%{$allgroups{$cid}})) {
6818: if (grep/^$group$/,@groups) {
6819: return 'ok';
6820: }
6821: }
6822: }
6823: }
6824: }
6825: }
6826: }
6827: }
6828: if ($guest) {
6829: return $guest;
6830: }
6831: }
6832: }
6833: return;
6834: }
6835:
6836: sub course_group_datechecker {
6837: my ($dates,$now,$status) = @_;
6838: my ($start,$end) = split(/\./,$dates);
6839: if (!$start && !$end) {
6840: return 'ok';
6841: }
6842: if (grep/^active$/,@{$status}) {
6843: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
6844: return 'ok';
6845: }
6846: }
6847: if (grep/^previous$/,@{$status}) {
6848: if ($end > $now ) {
6849: return 'ok';
6850: }
6851: }
6852: if (grep/^future$/,@{$status}) {
6853: if ($start > $now) {
6854: return 'ok';
6855: }
6856: }
6857: return;
6858: }
6859:
6860: sub parse_portfolio_url {
6861: my ($url) = @_;
6862:
6863: my ($type,$udom,$unum,$group,$file_name);
6864:
1.823 albertel 6865: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 6866: $type = 1;
6867: $udom = $1;
6868: $unum = $2;
6869: $file_name = $3;
1.823 albertel 6870: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 6871: $type = 2;
6872: $udom = $1;
6873: $unum = $2;
6874: $group = $3;
6875: $file_name = $3.'/'.$4;
6876: }
6877: if (wantarray) {
6878: return ($type,$udom,$unum,$file_name,$group);
6879: }
6880: return $type;
6881: }
6882:
6883: sub is_portfolio_url {
6884: my ($url) = @_;
6885: return scalar(&parse_portfolio_url($url));
6886: }
6887:
1.798 raeburn 6888: sub is_portfolio_file {
6889: my ($file) = @_;
1.820 raeburn 6890: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 6891: return 1;
6892: }
6893: return;
6894: }
6895:
1.976 raeburn 6896: sub usertools_access {
1.1084 raeburn 6897: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 6898: my ($access,%tools);
6899: if ($context eq '') {
6900: $context = 'tools';
6901: }
6902: if ($context eq 'requestcourses') {
6903: %tools = (
6904: official => 1,
6905: unofficial => 1,
1.1006 raeburn 6906: community => 1,
1.1172.2.37 raeburn 6907: textbook => 1,
1.985 raeburn 6908: );
1.1172.2.9 raeburn 6909: } elsif ($context eq 'requestauthor') {
6910: %tools = (
6911: requestauthor => 1,
6912: );
1.985 raeburn 6913: } else {
6914: %tools = (
6915: aboutme => 1,
6916: blog => 1,
1.1172.2.6 raeburn 6917: webdav => 1,
1.985 raeburn 6918: portfolio => 1,
6919: );
6920: }
1.976 raeburn 6921: return if (!defined($tools{$tool}));
6922:
1.1172.2.35 raeburn 6923: if (($udom eq '') || ($uname eq '')) {
1.976 raeburn 6924: $udom = $env{'user.domain'};
6925: $uname = $env{'user.name'};
6926: }
6927:
1.978 raeburn 6928: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6929: if ($action ne 'reload') {
1.985 raeburn 6930: if ($context eq 'requestcourses') {
6931: return $env{'environment.canrequest.'.$tool};
1.1172.2.9 raeburn 6932: } elsif ($context eq 'requestauthor') {
6933: return $env{'environment.canrequest.author'};
1.985 raeburn 6934: } else {
6935: return $env{'environment.availabletools.'.$tool};
6936: }
6937: }
1.976 raeburn 6938: }
6939:
1.1172.2.9 raeburn 6940: my ($toolstatus,$inststatus,$envkey);
6941: if ($context eq 'requestauthor') {
6942: $envkey = $context;
6943: } else {
6944: $envkey = $context.'.'.$tool;
6945: }
1.976 raeburn 6946:
1.985 raeburn 6947: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
6948: ($action ne 'reload')) {
1.1172.2.9 raeburn 6949: $toolstatus = $env{'environment.'.$envkey};
1.976 raeburn 6950: $inststatus = $env{'environment.inststatus'};
6951: } else {
1.1084 raeburn 6952: if (ref($userenvref) eq 'HASH') {
1.1172.2.9 raeburn 6953: $toolstatus = $userenvref->{$envkey};
1.1084 raeburn 6954: $inststatus = $userenvref->{'inststatus'};
6955: } else {
1.1172.2.9 raeburn 6956: my %userenv = &userenvironment($udom,$uname,$envkey,'inststatus');
6957: $toolstatus = $userenv{$envkey};
1.1084 raeburn 6958: $inststatus = $userenv{'inststatus'};
6959: }
1.976 raeburn 6960: }
6961:
6962: if ($toolstatus ne '') {
6963: if ($toolstatus) {
6964: $access = 1;
6965: } else {
6966: $access = 0;
6967: }
6968: return $access;
6969: }
6970:
1.1084 raeburn 6971: my ($is_adv,%domdef);
6972: if (ref($is_advref) eq 'HASH') {
6973: $is_adv = $is_advref->{'is_adv'};
6974: } else {
6975: $is_adv = &is_advanced_user($udom,$uname);
6976: }
6977: if (ref($domdefref) eq 'HASH') {
6978: %domdef = %{$domdefref};
6979: } else {
6980: %domdef = &get_domain_defaults($udom);
6981: }
1.976 raeburn 6982: if (ref($domdef{$tool}) eq 'HASH') {
6983: if ($is_adv) {
6984: if ($domdef{$tool}{'_LC_adv'} ne '') {
6985: if ($domdef{$tool}{'_LC_adv'}) {
6986: $access = 1;
6987: } else {
6988: $access = 0;
6989: }
6990: return $access;
6991: }
6992: }
6993: if ($inststatus ne '') {
6994: my ($hasaccess,$hasnoaccess);
6995: foreach my $affiliation (split(/:/,$inststatus)) {
6996: if ($domdef{$tool}{$affiliation} ne '') {
6997: if ($domdef{$tool}{$affiliation}) {
6998: $hasaccess = 1;
6999: } else {
7000: $hasnoaccess = 1;
7001: }
7002: }
7003: }
7004: if ($hasaccess || $hasnoaccess) {
7005: if ($hasaccess) {
7006: $access = 1;
7007: } elsif ($hasnoaccess) {
7008: $access = 0;
7009: }
7010: return $access;
7011: }
7012: } else {
7013: if ($domdef{$tool}{'default'} ne '') {
7014: if ($domdef{$tool}{'default'}) {
7015: $access = 1;
7016: } elsif ($domdef{$tool}{'default'} == 0) {
7017: $access = 0;
7018: }
7019: return $access;
7020: }
7021: }
7022: } else {
1.1172.2.6 raeburn 7023: if (($context eq 'tools') && ($tool ne 'webdav')) {
1.985 raeburn 7024: $access = 1;
7025: } else {
7026: $access = 0;
7027: }
1.976 raeburn 7028: return $access;
7029: }
7030: }
7031:
1.1050 raeburn 7032: sub is_course_owner {
7033: my ($cdom,$cnum,$udom,$uname) = @_;
7034: if (($udom eq '') || ($uname eq '')) {
7035: $udom = $env{'user.domain'};
7036: $uname = $env{'user.name'};
7037: }
7038: unless (($udom eq '') || ($uname eq '')) {
7039: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
7040: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
7041: return 1;
7042: } else {
7043: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
7044: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
7045: return 1;
7046: }
7047: }
7048: }
7049: }
7050: return;
7051: }
7052:
1.976 raeburn 7053: sub is_advanced_user {
7054: my ($udom,$uname) = @_;
1.1085 raeburn 7055: if ($udom ne '' && $uname ne '') {
7056: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.1128 raeburn 7057: if (wantarray) {
7058: return ($env{'user.adv'},$env{'user.author'});
7059: } else {
7060: return $env{'user.adv'};
7061: }
1.1085 raeburn 7062: }
7063: }
1.976 raeburn 7064: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
7065: my %allroles;
1.1128 raeburn 7066: my ($is_adv,$is_author);
1.976 raeburn 7067: foreach my $role (keys(%roleshash)) {
7068: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
7069: my $area = '/'.$tdomain.'/'.$trest;
7070: if ($sec ne '') {
7071: $area .= '/'.$sec;
7072: }
7073: if (($area ne '') && ($trole ne '')) {
7074: my $spec=$trole.'.'.$area;
7075: if ($trole =~ /^cr\//) {
7076: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
7077: } elsif ($trole ne 'gr') {
7078: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
7079: }
1.1128 raeburn 7080: if ($trole eq 'au') {
7081: $is_author = 1;
7082: }
1.976 raeburn 7083: }
7084: }
7085: foreach my $role (keys(%allroles)) {
7086: last if ($is_adv);
7087: foreach my $item (split(/:/,$allroles{$role})) {
7088: if ($item ne '') {
7089: my ($privilege,$restrictions)=split(/&/,$item);
7090: if ($privilege eq 'adv') {
7091: $is_adv = 1;
7092: last;
7093: }
7094: }
7095: }
7096: }
1.1128 raeburn 7097: if (wantarray) {
7098: return ($is_adv,$is_author);
7099: }
1.976 raeburn 7100: return $is_adv;
7101: }
1.798 raeburn 7102:
1.1035 raeburn 7103: sub check_can_request {
1.1036 raeburn 7104: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 7105: my $canreq = 0;
7106: my ($types,$typename) = &Apache::loncommon::course_types();
7107: my @options = ('approval','validate','autolimit');
7108: my $optregex = join('|',@options);
7109: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
7110: foreach my $type (@{$types}) {
7111: if (&usertools_access($env{'user.name'},
7112: $env{'user.domain'},
7113: $type,undef,'requestcourses')) {
7114: $canreq ++;
1.1036 raeburn 7115: if (ref($request_domains) eq 'HASH') {
7116: push(@{$request_domains->{$type}},$env{'user.domain'});
7117: }
1.1035 raeburn 7118: if ($dom eq $env{'user.domain'}) {
7119: $can_request->{$type} = 1;
7120: }
7121: }
7122: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
7123: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
7124: if (@curr > 0) {
1.1036 raeburn 7125: foreach my $item (@curr) {
7126: if (ref($request_domains) eq 'HASH') {
7127: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
7128: if ($otherdom ne '') {
7129: if (ref($request_domains->{$type}) eq 'ARRAY') {
7130: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
7131: push(@{$request_domains->{$type}},$otherdom);
7132: }
7133: } else {
7134: push(@{$request_domains->{$type}},$otherdom);
7135: }
7136: }
7137: }
7138: }
7139: unless($dom eq $env{'user.domain'}) {
7140: $canreq ++;
1.1035 raeburn 7141: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
7142: $can_request->{$type} = 1;
7143: }
7144: }
7145: }
7146: }
7147: }
7148: }
7149: return $canreq;
7150: }
7151:
1.341 www 7152: # ---------------------------------------------- Custom access rule evaluation
7153:
7154: sub customaccess {
7155: my ($priv,$uri)=@_;
1.807 albertel 7156: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 7157: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 7158: $udom = &LONCAPA::clean_domain($udom);
7159: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 7160: my $access=0;
1.800 albertel 7161: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 7162: my ($effect,$realm,$role,$type)=split(/\:/,$right);
7163: if ($type eq 'user') {
7164: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 7165: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 7166: if ($tdom) {
7167: if ($tdom ne $env{'user.domain'}) { next; }
7168: }
1.896 albertel 7169: if ($tuname) {
7170: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 7171: }
7172: $access=($effect eq 'allow');
7173: last;
7174: }
7175: } else {
7176: if ($role) {
7177: if ($role ne $urole) { next; }
7178: }
7179: foreach my $scope (split(/\s*\,\s*/,$realm)) {
7180: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
7181: if ($tdom) {
7182: if ($tdom ne $udom) { next; }
7183: }
7184: if ($tcrs) {
7185: if ($tcrs ne $ucrs) { next; }
7186: }
7187: if ($tsec) {
7188: if ($tsec ne $usec) { next; }
7189: }
7190: $access=($effect eq 'allow');
7191: last;
7192: }
7193: if ($realm eq '' && $role eq '') {
7194: $access=($effect eq 'allow');
7195: }
1.402 bowersj2 7196: }
1.341 www 7197: }
7198: return $access;
7199: }
7200:
1.103 harris41 7201: # ------------------------------------------------- Check for a user privilege
1.12 www 7202:
7203: sub allowed {
1.1172.2.65 raeburn 7204: my ($priv,$uri,$symb,$role,$clientip,$noblockcheck)=@_;
1.705 albertel 7205: my $ver_orguri=$uri;
1.439 www 7206: $uri=&deversion($uri);
1.152 www 7207: my $orguri=$uri;
1.52 www 7208: $uri=&declutter($uri);
1.809 raeburn 7209:
1.810 raeburn 7210: if ($priv eq 'evb') {
7211: # Evade communication block restrictions for specified role in a course
7212: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
7213: return $1;
7214: } else {
7215: return;
7216: }
7217: }
7218:
1.620 albertel 7219: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 7220: # Free bre access to adm and meta resources
1.775 albertel 7221: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 7222: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
7223: && ($priv eq 'bre')) {
1.14 www 7224: return 'F';
1.159 www 7225: }
7226:
1.545 banghart 7227: # Free bre access to user's own portfolio contents
1.714 raeburn 7228: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 7229: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 7230: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 7231: my %setters;
7232: my ($startblock,$endblock) =
7233: &Apache::loncommon::blockcheck(\%setters,'port');
7234: if ($startblock && $endblock) {
7235: return 'B';
7236: } else {
7237: return 'F';
7238: }
1.545 banghart 7239: }
7240:
1.762 raeburn 7241: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 7242: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
7243: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
7244: if (exists($env{'request.course.id'})) {
7245: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7246: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7247: if (($domain eq $cdom) && ($name eq $cnum)) {
7248: my $courseprivid=$env{'request.course.id'};
7249: $courseprivid=~s/\_/\//;
7250: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
7251: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
7252: return $1;
1.762 raeburn 7253: } else {
7254: if ($env{'request.course.sec'}) {
7255: $courseprivid.='/'.$env{'request.course.sec'};
7256: }
7257: if ($env{'user.priv.'.$env{'request.role'}.'./'.
7258: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
7259: return $2;
7260: }
1.714 raeburn 7261: }
7262: }
7263: }
7264: }
7265:
1.159 www 7266: # Free bre to public access
7267:
7268: if ($priv eq 'bre') {
1.238 www 7269: my $copyright=&metadata($uri,'copyright');
1.620 albertel 7270: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 7271: return 'F';
7272: }
1.238 www 7273: if ($copyright eq 'priv') {
7274: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7275: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 7276: return '';
7277: }
7278: }
7279: if ($copyright eq 'domain') {
7280: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 7281: unless (($env{'user.domain'} eq $1) ||
7282: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 7283: return '';
7284: }
1.262 matthew 7285: }
1.620 albertel 7286: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 7287: # Library role, so allow browsing of resources in this domain.
7288: return 'F';
1.238 www 7289: }
1.341 www 7290: if ($copyright eq 'custom') {
7291: unless (&customaccess($priv,$uri)) { return ''; }
7292: }
1.14 www 7293: }
1.264 matthew 7294: # Domain coordinator is trying to create a course
1.620 albertel 7295: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 7296: # uri is the requested domain in this case.
7297: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 7298: # a role of dc for the domain in question.
1.620 albertel 7299: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 7300: }
1.29 www 7301:
1.52 www 7302: my $thisallowed='';
7303: my $statecond=0;
7304: my $courseprivid='';
7305:
1.1039 raeburn 7306: my $ownaccess;
1.1043 raeburn 7307: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 7308: if (($priv eq 'bro') && ($env{'user.author'})) {
7309: if ($uri eq '') {
7310: $ownaccess = 1;
7311: } else {
7312: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
7313: my $udom = $env{'user.domain'};
7314: my $uname = $env{'user.name'};
7315: if ($uri =~ m{^\Q$udom\E/?$}) {
7316: $ownaccess = 1;
1.1040 raeburn 7317: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 7318: unless ($uri =~ m{\.\./}) {
7319: $ownaccess = 1;
7320: }
7321: } elsif (($udom ne 'public') && ($uname ne 'public')) {
7322: my $now = time;
7323: if ($uri =~ m{^([^/]+)/?$}) {
7324: my $adom = $1;
7325: foreach my $key (keys(%env)) {
1.1042 raeburn 7326: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 7327: my ($start,$end) = split('.',$env{$key});
7328: if (($now >= $start) && (!$end || $end < $now)) {
7329: $ownaccess = 1;
7330: last;
7331: }
7332: }
7333: }
7334: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
7335: my $adom = $1;
7336: my $aname = $2;
1.1042 raeburn 7337: foreach my $role ('ca','aa') {
7338: if ($env{"user.role.$role./$adom/$aname"}) {
7339: my ($start,$end) =
7340: split('.',$env{"user.role.$role./$adom/$aname"});
7341: if (($now >= $start) && (!$end || $end < $now)) {
7342: $ownaccess = 1;
7343: last;
7344: }
1.1039 raeburn 7345: }
7346: }
7347: }
7348: }
7349: }
7350: }
7351: }
7352:
1.52 www 7353: # Course
7354:
1.620 albertel 7355: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7356: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7357: $thisallowed.=$1;
7358: }
1.52 www 7359: }
1.29 www 7360:
1.52 www 7361: # Domain
7362:
1.620 albertel 7363: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 7364: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7365: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7366: $thisallowed.=$1;
7367: }
1.12 www 7368: }
1.52 www 7369:
1.1141 raeburn 7370: # User who is not author or co-author might still be able to edit
7371: # resource of an author in the domain (e.g., if Domain Coordinator).
7372: if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
7373: (&allowed('mdc',$env{'request.course.id'}))) {
7374: if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
7375: $thisallowed.=$1;
7376: }
7377: }
7378:
1.52 www 7379: # Course: uri itself is a course
1.66 www 7380: my $courseuri=$uri;
7381: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 7382: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 7383:
1.620 albertel 7384: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 7385: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 7386: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 7387: $thisallowed.=$1;
7388: }
1.12 www 7389: }
1.29 www 7390:
1.665 albertel 7391: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 7392: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 7393: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 7394: $thisallowed='';
1.671 raeburn 7395: my ($match)=&is_on_map($uri);
7396: if ($match) {
7397: if ($env{'user.priv.'.$env{'request.role'}.'./'}
7398: =~/\Q$priv\E\&([^\:]*)/) {
1.1172.2.65 raeburn 7399: my $value = $1;
7400: if ($noblockcheck) {
7401: $thisallowed.=$value;
1.1162 raeburn 7402: } else {
1.1172.2.65 raeburn 7403: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7404: if (@blockers > 0) {
7405: $thisallowed = 'B';
7406: } else {
7407: $thisallowed.=$value;
7408: }
1.1162 raeburn 7409: }
1.671 raeburn 7410: }
7411: } else {
1.705 albertel 7412: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 7413: if ($refuri) {
7414: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 7415: $thisallowed='F';
1.671 raeburn 7416: } else {
7417: $refuri=&declutter($refuri);
7418: my ($match) = &is_on_map($refuri);
7419: if ($match) {
1.1172.2.65 raeburn 7420: if ($noblockcheck) {
1.1162 raeburn 7421: $thisallowed='F';
1.1172.2.65 raeburn 7422: } else {
7423: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
7424: if (@blockers > 0) {
7425: $thisallowed = 'B';
7426: } else {
7427: $thisallowed='F';
7428: }
1.1162 raeburn 7429: }
1.671 raeburn 7430: }
1.669 raeburn 7431: }
1.671 raeburn 7432: }
7433: }
1.314 www 7434: }
1.492 albertel 7435:
1.766 albertel 7436: if ($priv eq 'bre'
7437: && $thisallowed ne 'F'
7438: && $thisallowed ne '2'
7439: && &is_portfolio_url($uri)) {
1.1172.2.77 raeburn 7440: $thisallowed = &portfolio_access($uri,$clientip);
1.766 albertel 7441: }
7442:
1.52 www 7443: # Full access at system, domain or course-wide level? Exit.
1.29 www 7444: if ($thisallowed=~/F/) {
7445: return 'F';
7446: }
7447:
1.52 www 7448: # If this is generating or modifying users, exit with special codes
1.29 www 7449:
1.643 www 7450: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
7451: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 7452: my ($audom,$auname)=split('/',$uri);
1.643 www 7453: # no author name given, so this just checks on the general right to make a co-author in this domain
7454: unless ($auname) { return $thisallowed; }
7455: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 7456: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
7457: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
7458: ($audom ne $env{'request.role.domain'}))) { return ''; }
7459: }
1.52 www 7460: return $thisallowed;
7461: }
7462: #
1.103 harris41 7463: # Gathered so far: system, domain and course wide privileges
1.52 www 7464: #
7465: # Course: See if uri or referer is an individual resource that is part of
7466: # the course
7467:
1.620 albertel 7468: if ($env{'request.course.id'}) {
1.232 www 7469:
1.620 albertel 7470: $courseprivid=$env{'request.course.id'};
7471: if ($env{'request.course.sec'}) {
7472: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 7473: }
7474: $courseprivid=~s/\_/\//;
7475: my $checkreferer=1;
1.232 www 7476: my ($match,$cond)=&is_on_map($uri);
7477: if ($match) {
7478: $statecond=$cond;
1.620 albertel 7479: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 7480: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 7481: my $value = $1;
7482: if ($priv eq 'bre') {
1.1172.2.65 raeburn 7483: if ($noblockcheck) {
1.1162 raeburn 7484: $thisallowed.=$value;
1.1172.2.65 raeburn 7485: } else {
7486: my @blockers = &has_comm_blocking($priv,$symb,$uri);
7487: if (@blockers > 0) {
7488: $thisallowed = 'B';
7489: } else {
7490: $thisallowed.=$value;
7491: }
1.1162 raeburn 7492: }
7493: } else {
7494: $thisallowed.=$value;
7495: }
1.52 www 7496: $checkreferer=0;
7497: }
1.29 www 7498: }
1.83 www 7499:
1.148 www 7500: if ($checkreferer) {
1.620 albertel 7501: my $refuri=$env{'httpref.'.$orguri};
1.148 www 7502: unless ($refuri) {
1.800 albertel 7503: foreach my $key (keys(%env)) {
7504: if ($key=~/^httpref\..*\*/) {
7505: my $pattern=$key;
1.156 www 7506: $pattern=~s/^httpref\.\/res\///;
1.148 www 7507: $pattern=~s/\*/\[\^\/\]\+/g;
7508: $pattern=~s/\//\\\//g;
1.152 www 7509: if ($orguri=~/$pattern/) {
1.800 albertel 7510: $refuri=$env{$key};
1.148 www 7511: }
7512: }
1.191 harris41 7513: }
1.148 www 7514: }
1.232 www 7515:
1.148 www 7516: if ($refuri) {
1.152 www 7517: $refuri=&declutter($refuri);
1.232 www 7518: my ($match,$cond)=&is_on_map($refuri);
7519: if ($match) {
7520: my $refstatecond=$cond;
1.620 albertel 7521: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 7522: =~/\Q$priv\E\&([^\:]*)/) {
1.1162 raeburn 7523: my $value = $1;
7524: if ($priv eq 'bre') {
1.1172.2.65 raeburn 7525: if ($noblockcheck) {
1.1162 raeburn 7526: $thisallowed.=$value;
1.1172.2.65 raeburn 7527: } else {
7528: my @blockers = &has_comm_blocking($priv,$symb,$refuri);
7529: if (@blockers > 0) {
7530: $thisallowed = 'B';
7531: } else {
7532: $thisallowed.=$value;
7533: }
1.1162 raeburn 7534: }
7535: } else {
7536: $thisallowed.=$value;
7537: }
1.53 www 7538: $uri=$refuri;
7539: $statecond=$refstatecond;
1.52 www 7540: }
7541: }
1.148 www 7542: }
1.29 www 7543: }
1.52 www 7544: }
1.29 www 7545:
1.52 www 7546: #
1.103 harris41 7547: # Gathered now: all privileges that could apply, and condition number
1.52 www 7548: #
7549: #
7550: # Full or no access?
7551: #
1.29 www 7552:
1.52 www 7553: if ($thisallowed=~/F/) {
7554: return 'F';
7555: }
1.29 www 7556:
1.52 www 7557: unless ($thisallowed) {
7558: return '';
7559: }
1.29 www 7560:
1.52 www 7561: # Restrictions exist, deal with them
7562: #
7563: # C:according to course preferences
7564: # R:according to resource settings
7565: # L:unless locked
7566: # X:according to user session state
7567: #
7568:
7569: # Possibly locked functionality, check all courses
1.54 www 7570: # Locks might take effect only after 10 minutes cache expiration for other
7571: # courses, and 2 minutes for current course
1.52 www 7572:
7573: my $envkey;
7574: if ($thisallowed=~/L/) {
1.1000 raeburn 7575: foreach $envkey (keys(%env)) {
1.54 www 7576: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
7577: my $courseid=$2;
7578: my $roleid=$1.'.'.$2;
1.92 www 7579: $courseid=~s/^\///;
1.54 www 7580: my $expiretime=600;
1.620 albertel 7581: if ($env{'request.role'} eq $roleid) {
1.54 www 7582: $expiretime=120;
7583: }
7584: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
7585: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 7586: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 7587: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 7588: }
1.620 albertel 7589: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
7590: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
7591: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
7592: &log($env{'user.domain'},$env{'user.name'},
7593: $env{'user.home'},
1.57 www 7594: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 7595: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 7596: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7597: return '';
7598: }
7599: }
1.620 albertel 7600: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
7601: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
7602: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
7603: &log($env{'user.domain'},$env{'user.name'},
7604: $env{'user.home'},
1.57 www 7605: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 7606: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 7607: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 7608: return '';
7609: }
7610: }
7611: }
1.29 www 7612: }
1.52 www 7613: }
7614:
7615: #
7616: # Rest of the restrictions depend on selected course
7617: #
7618:
1.620 albertel 7619: unless ($env{'request.course.id'}) {
1.766 albertel 7620: if ($thisallowed eq 'A') {
7621: return 'A';
1.814 raeburn 7622: } elsif ($thisallowed eq 'B') {
7623: return 'B';
1.766 albertel 7624: } else {
7625: return '1';
7626: }
1.52 www 7627: }
1.29 www 7628:
1.52 www 7629: #
7630: # Now user is definitely in a course
7631: #
1.53 www 7632:
7633:
7634: # Course preferences
7635:
7636: if ($thisallowed=~/C/) {
1.620 albertel 7637: my $rolecode=(split(/\./,$env{'request.role'}))[0];
7638: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
7639: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 7640: =~/\Q$rolecode\E/) {
1.1103 raeburn 7641: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7642: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7643: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
7644: $env{'request.course.id'});
7645: }
1.237 www 7646: return '';
7647: }
7648:
1.620 albertel 7649: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 7650: =~/\Q$unamedom\E/) {
1.1103 raeburn 7651: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7652: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
7653: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
7654: $env{'request.course.id'});
7655: }
1.54 www 7656: return '';
7657: }
1.53 www 7658: }
7659:
7660: # Resource preferences
7661:
7662: if ($thisallowed=~/R/) {
1.620 albertel 7663: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 7664: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.1103 raeburn 7665: if (($priv ne 'pch') && ($priv ne 'plc')) {
1.689 albertel 7666: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
7667: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
7668: }
7669: return '';
1.54 www 7670: }
1.53 www 7671: }
1.30 www 7672:
1.246 www 7673: # Restricted by state or randomout?
1.30 www 7674:
1.52 www 7675: if ($thisallowed=~/X/) {
1.620 albertel 7676: if ($env{'acc.randomout'}) {
1.579 albertel 7677: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 7678: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 7679: return '';
7680: }
1.247 www 7681: }
7682: if (&condval($statecond)) {
1.52 www 7683: return '2';
7684: } else {
7685: return '';
7686: }
7687: }
1.30 www 7688:
1.766 albertel 7689: if ($thisallowed eq 'A') {
7690: return 'A';
1.814 raeburn 7691: } elsif ($thisallowed eq 'B') {
7692: return 'B';
1.766 albertel 7693: }
1.52 www 7694: return 'F';
1.232 www 7695: }
1.1162 raeburn 7696:
1.1172.2.13 raeburn 7697: # ------------------------------------------- Check construction space access
7698:
7699: sub constructaccess {
7700: my ($url,$setpriv)=@_;
7701:
7702: # We do not allow editing of previous versions of files
7703: if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
7704:
7705: # Get username and domain from URL
7706: my ($ownername,$ownerdomain,$ownerhome);
7707:
7708: ($ownerdomain,$ownername) =
1.1172.2.83 raeburn 7709: ($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E|)/priv/($match_domain)/($match_username)(?:/|$)});
1.1172.2.13 raeburn 7710:
7711: # The URL does not really point to any authorspace, forget it
7712: unless (($ownername) && ($ownerdomain)) { return ''; }
7713:
7714: # Now we need to see if the user has access to the authorspace of
7715: # $ownername at $ownerdomain
7716:
7717: if (($ownername eq $env{'user.name'}) && ($ownerdomain eq $env{'user.domain'})) {
7718: # Real author for this?
7719: $ownerhome = $env{'user.home'};
7720: if (exists($env{'user.priv.au./'.$ownerdomain.'/./'})) {
7721: return ($ownername,$ownerdomain,$ownerhome);
7722: }
7723: } else {
7724: # Co-author for this?
7725: if (exists($env{'user.priv.ca./'.$ownerdomain.'/'.$ownername.'./'}) ||
7726: exists($env{'user.priv.aa./'.$ownerdomain.'/'.$ownername.'./'}) ) {
7727: $ownerhome = &homeserver($ownername,$ownerdomain);
7728: return ($ownername,$ownerdomain,$ownerhome);
7729: }
7730: }
7731:
7732: # We don't have any access right now. If we are not possibly going to do anything about this,
7733: # we might as well leave
7734: unless ($setpriv) { return ''; }
7735:
7736: # Backdoor access?
7737: my $allowed=&allowed('eco',$ownerdomain);
7738: # Nope
7739: unless ($allowed) { return ''; }
7740: # Looks like we may have access, but could be locked by the owner of the construction space
7741: if ($allowed eq 'U') {
7742: my %blocked=&get('environment',['domcoord.author'],
7743: $ownerdomain,$ownername);
7744: # Is blocked by owner
7745: if ($blocked{'domcoord.author'} eq 'blocked') { return ''; }
7746: }
7747: if (($allowed eq 'F') || ($allowed eq 'U')) {
7748: # Grant temporary access
7749: my $then=$env{'user.login.time'};
1.1172.2.16 raeburn 7750: my $update=$env{'user.update.time'};
1.1172.2.13 raeburn 7751: if (!$update) { $update = $then; }
7752: my $refresh=$env{'user.refresh.time'};
7753: if (!$refresh) { $refresh = $update; }
7754: my $now = time;
7755: &check_adhoc_privs($ownerdomain,$ownername,$update,$refresh,
7756: $now,'ca','constructaccess');
7757: $ownerhome = &homeserver($ownername,$ownerdomain);
7758: return($ownername,$ownerdomain,$ownerhome);
7759: }
7760: # No business here
7761: return '';
7762: }
7763:
1.1172.2.66 raeburn 7764: # ----------------------------------------------------------- Content Blocking
7765:
7766: {
7767: # Caches for faster Course Contents display where content blocking
7768: # is in operation (i.e., interval param set) for timed quiz.
7769: #
7770: # User for whom data are being temporarily cached.
7771: my $cacheduser='';
7772: # Cached blockers for this user (a hash of blocking items).
7773: my %cachedblockers=();
7774: # When the data were last cached.
7775: my $cachedlast='';
7776:
7777: sub load_all_blockers {
7778: my ($uname,$udom,$blocks)=@_;
7779: if (($uname ne '') && ($udom ne '')) {
7780: if (($cacheduser eq $uname.':'.$udom) &&
7781: (abs($cachedlast-time)<5)) {
7782: return;
7783: }
7784: }
7785: $cachedlast=time;
7786: $cacheduser=$uname.':'.$udom;
7787: %cachedblockers = &get_commblock_resources($blocks);
7788: }
7789:
1.1162 raeburn 7790: sub get_comm_blocks {
7791: my ($cdom,$cnum) = @_;
7792: if ($cdom eq '' || $cnum eq '') {
7793: return unless ($env{'request.course.id'});
7794: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
7795: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
7796: }
7797: my %commblocks;
7798: my $hashid=$cdom.'_'.$cnum;
7799: my ($blocksref,$cached)=&is_cached_new('comm_block',$hashid);
7800: if ((defined($cached)) && (ref($blocksref) eq 'HASH')) {
7801: %commblocks = %{$blocksref};
7802: } else {
7803: %commblocks = &Apache::lonnet::dump('comm_block',$cdom,$cnum);
7804: my $cachetime = 600;
7805: &do_cache_new('comm_block',$hashid,\%commblocks,$cachetime);
7806: }
7807: return %commblocks;
7808: }
7809:
1.1172.2.66 raeburn 7810: sub get_commblock_resources {
7811: my ($blocks) = @_;
7812: my %blockers = ();
7813: return %blockers unless ($env{'request.course.id'});
7814: return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
1.1162 raeburn 7815: my %commblocks;
7816: if (ref($blocks) eq 'HASH') {
7817: %commblocks = %{$blocks};
7818: } else {
7819: %commblocks = &get_comm_blocks();
7820: }
1.1172.2.66 raeburn 7821: return %blockers unless (keys(%commblocks) > 0);
1.1163 raeburn 7822: my $navmap = Apache::lonnavmaps::navmap->new();
1.1172.2.66 raeburn 7823: return %blockers unless (ref($navmap));
7824: my $now = time;
1.1162 raeburn 7825: foreach my $block (keys(%commblocks)) {
7826: if ($block =~ /^(\d+)____(\d+)$/) {
7827: my ($start,$end) = ($1,$2);
7828: if ($start <= $now && $end >= $now) {
7829: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
7830: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
7831: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
1.1172.2.66 raeburn 7832: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
7833: $blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
1.1162 raeburn 7834: }
7835: }
7836: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
1.1172.2.66 raeburn 7837: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
7838: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1162 raeburn 7839: }
7840: }
7841: }
7842: }
7843: }
7844: } elsif ($block =~ /^firstaccess____(.+)$/) {
7845: my $item = $1;
1.1163 raeburn 7846: my @to_test;
1.1162 raeburn 7847: if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
7848: if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
1.1172.2.66 raeburn 7849: my @interval;
7850: my $type = 'map';
7851: if ($item eq 'course') {
7852: $type = 'course';
7853: @interval=&EXT("resource.0.interval");
7854: } else {
7855: if ($item =~ /___\d+___/) {
7856: $type = 'resource';
7857: @interval=&EXT("resource.0.interval",$item);
7858: if (ref($navmap)) {
7859: my $res = $navmap->getBySymb($item);
7860: push(@to_test,$res);
7861: }
1.1162 raeburn 7862: } else {
1.1172.2.66 raeburn 7863: my $mapsymb = &symbread($item,1);
7864: if ($mapsymb) {
7865: if (ref($navmap)) {
7866: my $mapres = $navmap->getBySymb($mapsymb);
7867: @to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1);
7868: foreach my $res (@to_test) {
7869: my $symb = $res->symb();
7870: next if ($symb eq $mapsymb);
7871: if ($symb ne '') {
7872: @interval=&EXT("resource.0.interval",$symb);
7873: if ($interval[1] eq 'map') {
7874: last;
1.1162 raeburn 7875: }
7876: }
7877: }
7878: }
7879: }
7880: }
1.1172.2.66 raeburn 7881: }
7882: if ($interval[0] =~ /^\d+$/) {
7883: my $first_access;
7884: if ($type eq 'resource') {
7885: $first_access=&get_first_access($interval[1],$item);
7886: } elsif ($type eq 'map') {
7887: $first_access=&get_first_access($interval[1],undef,$item);
7888: } else {
7889: $first_access=&get_first_access($interval[1]);
7890: }
7891: if ($first_access) {
7892: my $timesup = $first_access+$interval[0];
7893: if ($timesup > $now) {
7894: my $activeblock;
7895: foreach my $res (@to_test) {
7896: if ($res->answerable()) {
7897: $activeblock = 1;
7898: last;
7899: }
7900: }
7901: if ($activeblock) {
7902: if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
7903: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
7904: $blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
7905: }
7906: }
7907: if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
7908: if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
7909: $blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
1.1163 raeburn 7910: }
1.1162 raeburn 7911: }
7912: }
7913: }
7914: }
7915: }
7916: }
7917: }
7918: }
7919: }
1.1172.2.66 raeburn 7920: return %blockers;
1.1162 raeburn 7921: }
7922:
1.1172.2.66 raeburn 7923: sub has_comm_blocking {
7924: my ($priv,$symb,$uri,$blocks) = @_;
7925: my @blockers;
7926: return unless ($env{'request.course.id'});
7927: return unless ($priv eq 'bre');
7928: return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
7929: return if ($env{'request.state'} eq 'construct');
7930: &load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks);
7931: return unless (keys(%cachedblockers) > 0);
7932: my (%possibles,@symbs);
7933: if (!$symb) {
7934: $symb = &symbread($uri,1,1,1,\%possibles);
1.1162 raeburn 7935: }
1.1172.2.66 raeburn 7936: if ($symb) {
7937: @symbs = ($symb);
7938: } elsif (keys(%possibles)) {
7939: @symbs = keys(%possibles);
7940: }
7941: my $noblock;
7942: foreach my $symb (@symbs) {
7943: last if ($noblock);
7944: my ($map,$resid,$resurl)=&decode_symb($symb);
7945: foreach my $block (keys(%cachedblockers)) {
7946: if ($block =~ /^firstaccess____(.+)$/) {
7947: my $item = $1;
7948: if (($item eq $map) || ($item eq $symb)) {
7949: $noblock = 1;
7950: last;
7951: }
1.1162 raeburn 7952: }
1.1172.2.66 raeburn 7953: if (ref($cachedblockers{$block}) eq 'HASH') {
7954: if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') {
7955: if ($cachedblockers{$block}{'resources'}{$symb}) {
7956: unless (grep(/^\Q$block\E$/,@blockers)) {
7957: push(@blockers,$block);
7958: }
7959: }
7960: }
7961: }
7962: if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') {
7963: if ($cachedblockers{$block}{'maps'}{$map}) {
7964: unless (grep(/^\Q$block\E$/,@blockers)) {
7965: push(@blockers,$block);
7966: }
7967: }
1.1162 raeburn 7968: }
7969: }
7970: }
1.1172.2.66 raeburn 7971: return if ($noblock);
7972: return @blockers;
7973: }
1.1162 raeburn 7974: }
7975:
1.1172.2.66 raeburn 7976: # -------------------------------- Deversion and split uri into path an filename
7977:
1.1133 foxr 7978: #
1.1172.2.66 raeburn 7979: # Removes the version from a URI and
1.1133 foxr 7980: # splits it in to its filename and path to the filename.
7981: # Seems like File::Basename could have done this more clearly.
7982: # Parameters:
7983: # $uri - input URI
7984: # Returns:
7985: # Two element list consisting of
7986: # $pathname - the URI up to and excluding the trailing /
7987: # $filename - The part of the URI following the last /
7988: # NOTE:
7989: # Another realization of this is simply:
7990: # use File::Basename;
7991: # ...
7992: # $uri = shift;
7993: # $filename = basename($uri);
7994: # $path = dirname($uri);
7995: # return ($filename, $path);
7996: #
7997: # The implementation below is probably faster however.
7998: #
1.710 albertel 7999: sub split_uri_for_cond {
8000: my $uri=&deversion(&declutter(shift));
8001: my @uriparts=split(/\//,$uri);
8002: my $filename=pop(@uriparts);
8003: my $pathname=join('/',@uriparts);
8004: return ($pathname,$filename);
8005: }
1.232 www 8006: # --------------------------------------------------- Is a resource on the map?
8007:
8008: sub is_on_map {
1.710 albertel 8009: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 8010: #Trying to find the conditional for the file
1.620 albertel 8011: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 8012: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 8013: if ($match) {
1.289 bowersj2 8014: return (1,$1);
8015: } else {
1.434 www 8016: return (0,0);
1.289 bowersj2 8017: }
1.12 www 8018: }
8019:
1.427 www 8020: # --------------------------------------------------------- Get symb from alias
8021:
8022: sub get_symb_from_alias {
8023: my $symb=shift;
8024: my ($map,$resid,$url)=&decode_symb($symb);
8025: # Already is a symb
8026: if ($url) { return $symb; }
8027: # Must be an alias
8028: my $aliassymb='';
8029: my %bighash;
1.620 albertel 8030: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 8031: &GDBM_READER(),0640)) {
8032: my $rid=$bighash{'mapalias_'.$symb};
8033: if ($rid) {
8034: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 8035: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
8036: $resid,$bighash{'src_'.$rid});
1.427 www 8037: }
8038: untie %bighash;
8039: }
8040: return $aliassymb;
8041: }
8042:
1.12 www 8043: # ----------------------------------------------------------------- Define Role
8044:
8045: sub definerole {
8046: if (allowed('mcr','/')) {
1.1172.2.84 raeburn 8047: my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;
1.800 albertel 8048: foreach my $role (split(':',$sysrole)) {
8049: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8050: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
8051: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
8052: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8053: return "refused:s:$crole&$cqual";
8054: }
8055: }
1.191 harris41 8056: }
1.800 albertel 8057: foreach my $role (split(':',$domrole)) {
8058: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8059: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
8060: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
8061: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 8062: return "refused:d:$crole&$cqual";
8063: }
8064: }
1.191 harris41 8065: }
1.800 albertel 8066: foreach my $role (split(':',$courole)) {
8067: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 8068: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
8069: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
8070: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 8071: return "refused:c:$crole&$cqual";
8072: }
8073: }
1.191 harris41 8074: }
1.1172.2.84 raeburn 8075: my $uhome;
8076: if (($uname ne '') && ($udom ne '')) {
8077: $uhome = &homeserver($uname,$udom);
8078: return $uhome if ($uhome eq 'no_host');
8079: } else {
8080: $uname = $env{'user.name'};
8081: $udom = $env{'user.domain'};
8082: $uhome = $env{'user.home'};
8083: }
1.620 albertel 8084: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.1172.2.84 raeburn 8085: "$udom:$uname:rolesdef_$rolename=".
1.21 www 8086: escape($sysrole.'_'.$domrole.'_'.$courole);
1.1172.2.84 raeburn 8087: return reply($command,$uhome);
1.12 www 8088: } else {
8089: return 'refused';
8090: }
1.105 harris41 8091: }
8092:
8093: # ---------------- Make a metadata query against the network of library servers
8094:
8095: sub metadata_query {
1.1172.2.33 raeburn 8096: my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
1.120 harris41 8097: my %rhash;
1.845 albertel 8098: my %libserv = &all_library();
1.244 matthew 8099: my @server_list = (defined($server_array) ? @$server_array
8100: : keys(%libserv) );
8101: for my $server (@server_list) {
1.1172.2.33 raeburn 8102: my $domains = '';
8103: if (ref($domains_hash) eq 'HASH') {
8104: $domains = $domains_hash->{$server};
8105: }
1.118 harris41 8106: unless ($custom or $customshow) {
1.1172.2.33 raeburn 8107: my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
1.118 harris41 8108: $rhash{$server}=$reply;
8109: }
8110: else {
8111: my $reply=&reply("querysend:".&escape($query).':'.
1.1172.2.33 raeburn 8112: &escape($custom).':'.&escape($customshow).':'.&escape($domains),
1.118 harris41 8113: $server);
8114: $rhash{$server}=$reply;
8115: }
1.112 harris41 8116: }
1.118 harris41 8117: return \%rhash;
1.240 www 8118: }
8119:
8120: # ----------------------------------------- Send log queries and wait for reply
8121:
8122: sub log_query {
8123: my ($uname,$udom,$query,%filters)=@_;
8124: my $uhome=&homeserver($uname,$udom);
8125: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 8126: my $uhost=&hostname($uhome);
1.800 albertel 8127: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 8128: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
8129: $uhome);
1.479 albertel 8130: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 8131: return get_query_reply($queryid);
8132: }
8133:
1.818 raeburn 8134: # -------------------------- Update MySQL table for portfolio file
8135:
8136: sub update_portfolio_table {
1.821 raeburn 8137: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 8138: if ($group ne '') {
8139: $file_name =~s /^\Q$group\E//;
8140: }
1.818 raeburn 8141: my $homeserver = &homeserver($uname,$udom);
8142: my $queryid=
1.821 raeburn 8143: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
8144: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 8145: my $reply = &get_query_reply($queryid);
8146: return $reply;
8147: }
8148:
1.899 raeburn 8149: # -------------------------- Update MySQL allusers table
8150:
8151: sub update_allusers_table {
8152: my ($uname,$udom,$names) = @_;
8153: my $homeserver = &homeserver($uname,$udom);
8154: my $queryid=
8155: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
8156: 'lastname='.&escape($names->{'lastname'}).'%%'.
8157: 'firstname='.&escape($names->{'firstname'}).'%%'.
8158: 'middlename='.&escape($names->{'middlename'}).'%%'.
8159: 'generation='.&escape($names->{'generation'}).'%%'.
8160: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
8161: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 8162: return;
1.899 raeburn 8163: }
8164:
1.508 raeburn 8165: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 8166:
8167: sub fetch_enrollment_query {
1.511 raeburn 8168: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.1172.2.79 raeburn 8169: my ($homeserver,$sleep,$loopmax);
1.547 raeburn 8170: my $maxtries = 1;
1.508 raeburn 8171: if ($context eq 'automated') {
8172: $homeserver = $perlvar{'lonHostID'};
1.1172.2.79 raeburn 8173: $sleep = 2;
8174: $loopmax = 100;
1.547 raeburn 8175: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 8176: } else {
8177: $homeserver = &homeserver($cnum,$dom);
8178: }
1.838 albertel 8179: my $host=&hostname($homeserver);
1.506 raeburn 8180: my $cmd = '';
1.1000 raeburn 8181: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 8182: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 8183: }
8184: $cmd =~ s/%%$//;
8185: $cmd = &escape($cmd);
8186: my $query = 'fetchenrollment';
1.620 albertel 8187: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 8188: unless ($queryid=~/^\Q$host\E\_/) {
8189: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
8190: return 'error: '.$queryid;
8191: }
1.1172.2.93 raeburn 8192: my $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8193: my $tries = 1;
8194: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1.1172.2.79 raeburn 8195: $reply = &get_query_reply($queryid,$sleep,$loopmax);
1.547 raeburn 8196: $tries ++;
8197: }
1.526 raeburn 8198: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 8199: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 8200: } else {
1.901 albertel 8201: my @responses = split(/:/,$reply);
1.1172.2.82 raeburn 8202: if (grep { $_ eq $homeserver } ¤t_machine_ids()) {
1.800 albertel 8203: foreach my $line (@responses) {
8204: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 8205: $$replyref{$key} = $value;
8206: }
8207: } else {
1.1117 foxr 8208: my $pathname = LONCAPA::tempdir();
1.800 albertel 8209: foreach my $line (@responses) {
8210: my ($key,$value) = split(/=/,$line);
1.506 raeburn 8211: $$replyref{$key} = $value;
8212: if ($value > 0) {
1.800 albertel 8213: foreach my $item (@{$$affiliatesref{$key}}) {
8214: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 8215: my $destname = $pathname.'/'.$filename;
8216: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 8217: if ($xml_classlist =~ /^error/) {
8218: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
8219: } else {
1.1172.2.96 raeburn 8220: if ( open(FILE,">",$destname) ) {
1.506 raeburn 8221: print FILE &unescape($xml_classlist);
8222: close(FILE);
1.526 raeburn 8223: } else {
8224: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 8225: }
8226: }
8227: }
8228: }
8229: }
8230: }
8231: return 'ok';
8232: }
8233: return 'error';
8234: }
8235:
1.242 www 8236: sub get_query_reply {
1.1172.2.79 raeburn 8237: my ($queryid,$sleep,$loopmax) = @_;
8238: if (($sleep eq '') || ($sleep !~ /^\d+\.?\d*$/)) {
8239: $sleep = 0.2;
8240: }
8241: if (($loopmax eq '') || ($loopmax =~ /\D/)) {
8242: $loopmax = 100;
8243: }
1.1117 foxr 8244: my $replyfile=LONCAPA::tempdir().$queryid;
1.240 www 8245: my $reply='';
1.1172.2.79 raeburn 8246: for (1..$loopmax) {
8247: sleep($sleep);
1.240 www 8248: if (-e $replyfile.'.end') {
1.1172.2.96 raeburn 8249: if (open(my $fh,"<",$replyfile)) {
1.904 albertel 8250: $reply = join('',<$fh>);
8251: close($fh);
1.240 www 8252: } else { return 'error: reply_file_error'; }
1.242 www 8253: return &unescape($reply);
8254: }
1.240 www 8255: }
1.242 www 8256: return 'timeout:'.$queryid;
1.240 www 8257: }
8258:
8259: sub courselog_query {
1.241 www 8260: #
8261: # possible filters:
8262: # url: url or symb
8263: # username
8264: # domain
8265: # action: view, submit, grade
8266: # start: timestamp
8267: # end: timestamp
8268: #
1.240 www 8269: my (%filters)=@_;
1.620 albertel 8270: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 8271: if ($filters{'url'}) {
8272: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
8273: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
8274: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
8275: }
1.620 albertel 8276: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
8277: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 8278: return &log_query($cname,$cdom,'courselog',%filters);
8279: }
8280:
8281: sub userlog_query {
1.858 raeburn 8282: #
8283: # possible filters:
8284: # action: log check role
8285: # start: timestamp
8286: # end: timestamp
8287: #
1.240 www 8288: my ($uname,$udom,%filters)=@_;
8289: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 8290: }
8291:
1.506 raeburn 8292: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
8293:
8294: sub auto_run {
1.508 raeburn 8295: my ($cnum,$cdom) = @_;
1.876 raeburn 8296: my $response = 0;
8297: my $settings;
8298: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
8299: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
8300: $settings = $domconfig{'autoenroll'};
8301: if ($settings->{'run'} eq '1') {
8302: $response = 1;
8303: }
8304: } else {
1.934 raeburn 8305: my $homeserver;
8306: if (&is_course($cdom,$cnum)) {
8307: $homeserver = &homeserver($cnum,$cdom);
8308: } else {
8309: $homeserver = &domain($cdom,'primary');
8310: }
8311: if ($homeserver ne 'no_host') {
8312: $response = &reply('autorun:'.$cdom,$homeserver);
8313: }
1.876 raeburn 8314: }
1.506 raeburn 8315: return $response;
8316: }
1.776 albertel 8317:
1.506 raeburn 8318: sub auto_get_sections {
1.508 raeburn 8319: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 8320: my $homeserver;
8321: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8322: $homeserver = &homeserver($cnum,$cdom);
8323: }
8324: if (!defined($homeserver)) {
8325: if ($cdom =~ /^$match_domain$/) {
8326: $homeserver = &domain($cdom,'primary');
8327: }
8328: }
8329: my @secs;
8330: if (defined($homeserver)) {
8331: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
8332: unless ($response eq 'refused') {
8333: @secs = split(/:/,$response);
8334: }
1.506 raeburn 8335: }
8336: return @secs;
8337: }
1.776 albertel 8338:
1.506 raeburn 8339: sub auto_new_course {
1.1099 raeburn 8340: my ($cnum,$cdom,$inst_course_id,$owner,$coowners) = @_;
1.508 raeburn 8341: my $homeserver = &homeserver($cnum,$cdom);
1.1099 raeburn 8342: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.&escape($owner).':'.$cdom.':'.&escape($coowners),$homeserver));
1.506 raeburn 8343: return $response;
8344: }
1.776 albertel 8345:
1.506 raeburn 8346: sub auto_validate_courseID {
1.508 raeburn 8347: my ($cnum,$cdom,$inst_course_id) = @_;
8348: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 8349: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 8350: return $response;
8351: }
1.776 albertel 8352:
1.1007 raeburn 8353: sub auto_validate_instcode {
1.1020 raeburn 8354: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 8355: my ($homeserver,$response);
8356: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8357: $homeserver = &homeserver($cnum,$cdom);
8358: }
8359: if (!defined($homeserver)) {
8360: if ($cdom =~ /^$match_domain$/) {
8361: $homeserver = &domain($cdom,'primary');
8362: }
8363: }
1.1065 raeburn 8364: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
8365: &escape($instcode).':'.&escape($owner),$homeserver));
1.1172.2.19 raeburn 8366: my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
8367: return ($outcome,$description,$defaultcredits);
1.1007 raeburn 8368: }
8369:
1.506 raeburn 8370: sub auto_create_password {
1.873 raeburn 8371: my ($cnum,$cdom,$authparam,$udom) = @_;
8372: my ($homeserver,$response);
1.506 raeburn 8373: my $create_passwd = 0;
8374: my $authchk = '';
1.873 raeburn 8375: if ($udom =~ /^$match_domain$/) {
8376: $homeserver = &domain($udom,'primary');
8377: }
8378: if ($homeserver eq '') {
8379: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
8380: $homeserver = &homeserver($cnum,$cdom);
8381: }
8382: }
8383: if ($homeserver eq '') {
8384: $authchk = 'nodomain';
1.506 raeburn 8385: } else {
1.873 raeburn 8386: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
8387: if ($response eq 'refused') {
8388: $authchk = 'refused';
8389: } else {
1.901 albertel 8390: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 8391: }
1.506 raeburn 8392: }
8393: return ($authparam,$create_passwd,$authchk);
8394: }
8395:
1.706 raeburn 8396: sub auto_photo_permission {
8397: my ($cnum,$cdom,$students) = @_;
8398: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 8399: my ($outcome,$perm_reqd,$conditions) =
8400: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 8401: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8402: return (undef,undef);
8403: }
1.706 raeburn 8404: return ($outcome,$perm_reqd,$conditions);
8405: }
8406:
8407: sub auto_checkphotos {
8408: my ($uname,$udom,$pid) = @_;
8409: my $homeserver = &homeserver($uname,$udom);
8410: my ($result,$resulttype);
8411: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 8412: &escape($uname).':'.&escape($pid),
8413: $homeserver));
1.709 albertel 8414: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8415: return (undef,undef);
8416: }
1.706 raeburn 8417: if ($outcome) {
8418: ($result,$resulttype) = split(/:/,$outcome);
8419: }
8420: return ($result,$resulttype);
8421: }
8422:
8423: sub auto_photochoice {
8424: my ($cnum,$cdom) = @_;
8425: my $homeserver = &homeserver($cnum,$cdom);
8426: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 8427: &escape($cdom),
8428: $homeserver)));
1.709 albertel 8429: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
8430: return (undef,undef);
8431: }
1.706 raeburn 8432: return ($update,$comment);
8433: }
8434:
8435: sub auto_photoupdate {
8436: my ($affiliatesref,$dom,$cnum,$photo) = @_;
8437: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 8438: my $host=&hostname($homeserver);
1.706 raeburn 8439: my $cmd = '';
8440: my $maxtries = 1;
1.800 albertel 8441: foreach my $affiliate (keys(%{$affiliatesref})) {
8442: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 8443: }
8444: $cmd =~ s/%%$//;
8445: $cmd = &escape($cmd);
8446: my $query = 'institutionalphotos';
8447: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
8448: unless ($queryid=~/^\Q$host\E\_/) {
8449: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
8450: return 'error: '.$queryid;
8451: }
8452: my $reply = &get_query_reply($queryid);
8453: my $tries = 1;
8454: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
8455: $reply = &get_query_reply($queryid);
8456: $tries ++;
8457: }
8458: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
8459: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
8460: } else {
8461: my @responses = split(/:/,$reply);
8462: my $outcome = shift(@responses);
8463: foreach my $item (@responses) {
8464: my ($key,$value) = split(/=/,$item);
8465: $$photo{$key} = $value;
8466: }
8467: return $outcome;
8468: }
8469: return 'error';
8470: }
8471:
1.521 raeburn 8472: sub auto_instcode_format {
1.793 albertel 8473: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
8474: $cat_order) = @_;
1.521 raeburn 8475: my $courses = '';
1.772 raeburn 8476: my @homeservers;
1.521 raeburn 8477: if ($caller eq 'global') {
1.841 albertel 8478: my %servers = &get_servers($codedom,'library');
8479: foreach my $tryserver (keys(%servers)) {
8480: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8481: push(@homeservers,$tryserver);
8482: }
1.584 raeburn 8483: }
1.1022 raeburn 8484: } elsif ($caller eq 'requests') {
8485: if ($codedom =~ /^$match_domain$/) {
8486: my $chome = &domain($codedom,'primary');
8487: unless ($chome eq 'no_host') {
8488: push(@homeservers,$chome);
8489: }
8490: }
1.521 raeburn 8491: } else {
1.772 raeburn 8492: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 8493: }
1.793 albertel 8494: foreach my $code (keys(%{$instcodes})) {
8495: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 8496: }
8497: chop($courses);
1.772 raeburn 8498: my $ok_response = 0;
8499: my $response;
8500: while (@homeservers > 0 && $ok_response == 0) {
8501: my $server = shift(@homeservers);
8502: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
8503: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
8504: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 8505: split(/:/,$response);
1.772 raeburn 8506: %{$codes} = (%{$codes},&str2hash($codes_str));
8507: push(@{$codetitles},&str2array($codetitles_str));
8508: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
8509: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
8510: $ok_response = 1;
8511: }
8512: }
8513: if ($ok_response) {
1.521 raeburn 8514: return 'ok';
1.772 raeburn 8515: } else {
8516: return $response;
1.521 raeburn 8517: }
8518: }
8519:
1.792 raeburn 8520: sub auto_instcode_defaults {
8521: my ($domain,$returnhash,$code_order) = @_;
8522: my @homeservers;
1.841 albertel 8523:
8524: my %servers = &get_servers($domain,'library');
8525: foreach my $tryserver (keys(%servers)) {
8526: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8527: push(@homeservers,$tryserver);
8528: }
1.792 raeburn 8529: }
1.841 albertel 8530:
1.792 raeburn 8531: my $response;
1.841 albertel 8532: foreach my $server (@homeservers) {
1.792 raeburn 8533: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 8534: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
8535:
8536: foreach my $pair (split(/\&/,$response)) {
8537: my ($name,$value)=split(/\=/,$pair);
8538: if ($name eq 'code_order') {
8539: @{$code_order} = split(/\&/,&unescape($value));
8540: } else {
8541: $returnhash->{&unescape($name)}=&unescape($value);
8542: }
8543: }
8544: return 'ok';
1.792 raeburn 8545: }
1.841 albertel 8546:
8547: return $response;
1.1003 raeburn 8548: }
8549:
8550: sub auto_possible_instcodes {
1.1007 raeburn 8551: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
8552: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
8553: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
8554: return;
8555: }
1.1003 raeburn 8556: my (@homeservers,$uhome);
8557: if (defined(&domain($domain,'primary'))) {
8558: $uhome=&domain($domain,'primary');
8559: push(@homeservers,&domain($domain,'primary'));
8560: } else {
8561: my %servers = &get_servers($domain,'library');
8562: foreach my $tryserver (keys(%servers)) {
8563: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
8564: push(@homeservers,$tryserver);
8565: }
8566: }
8567: }
8568: my $response;
8569: foreach my $server (@homeservers) {
8570: $response=&reply('autopossibleinstcodes:'.$domain,$server);
8571: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 8572: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
8573: split(':',$response);
8574: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
8575: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 8576: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 8577: my ($name,$value)=split('=',$item);
8578: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 8579: }
8580: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 8581: my ($name,$value)=split('=',$item);
8582: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 8583: }
8584: return 'ok';
8585: }
8586: return $response;
8587: }
1.792 raeburn 8588:
1.1010 raeburn 8589: sub auto_courserequest_checks {
8590: my ($dom) = @_;
1.1020 raeburn 8591: my ($homeserver,%validations);
8592: if ($dom =~ /^$match_domain$/) {
8593: $homeserver = &domain($dom,'primary');
8594: }
8595: unless ($homeserver eq 'no_host') {
8596: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
8597: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
8598: my @items = split(/&/,$response);
8599: foreach my $item (@items) {
8600: my ($key,$value) = split('=',$item);
8601: $validations{&unescape($key)} = &thaw_unescape($value);
8602: }
8603: }
8604: }
1.1010 raeburn 8605: return %validations;
8606: }
8607:
1.1020 raeburn 8608: sub auto_courserequest_validation {
1.1172.2.43 raeburn 8609: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
1.1020 raeburn 8610: my ($homeserver,$response);
8611: if ($dom =~ /^$match_domain$/) {
8612: $homeserver = &domain($dom,'primary');
8613: }
1.1172.2.43 raeburn 8614: unless ($homeserver eq 'no_host') {
8615: my $customdata;
8616: if (ref($custominfo) eq 'HASH') {
8617: $customdata = &freeze_escape($custominfo);
8618: }
1.1020 raeburn 8619: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 8620: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1172.2.43 raeburn 8621: ':'.&escape($instcode).':'.&escape($instseclist).':'.
8622: $customdata,$homeserver));
1.1020 raeburn 8623: }
8624: return $response;
8625: }
8626:
1.777 albertel 8627: sub auto_validate_class_sec {
1.918 raeburn 8628: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 8629: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 8630: my $ownerlist;
8631: if (ref($owners) eq 'ARRAY') {
8632: $ownerlist = join(',',@{$owners});
8633: } else {
8634: $ownerlist = $owners;
8635: }
1.773 raeburn 8636: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 8637: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 8638: return $response;
8639: }
8640:
1.1172.2.94 raeburn 8641: sub auto_validate_instclasses {
8642: my ($cdom,$cnum,$owners,$classesref) = @_;
8643: my ($homeserver,%validations);
8644: $homeserver = &homeserver($cnum,$cdom);
8645: unless ($homeserver eq 'no_host') {
8646: my $ownerlist;
8647: if (ref($owners) eq 'ARRAY') {
8648: $ownerlist = join(',',@{$owners});
8649: } else {
8650: $ownerlist = $owners;
8651: }
8652: if (ref($classesref) eq 'HASH') {
8653: my $classes = &freeze_escape($classesref);
8654: my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
8655: ':'.$cdom.':'.$classes,$homeserver);
8656: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
8657: my @items = split(/&/,$response);
8658: foreach my $item (@items) {
8659: my ($key,$value) = split('=',$item);
8660: $validations{&unescape($key)} = &thaw_unescape($value);
8661: }
8662: }
8663: }
8664: }
8665: return %validations;
8666: }
8667:
1.1172.2.38 raeburn 8668: sub auto_crsreq_update {
8669: my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
1.1172.2.45 raeburn 8670: $code,$accessstart,$accessend,$inbound) = @_;
1.1172.2.38 raeburn 8671: my ($homeserver,%crsreqresponse);
8672: if ($cdom =~ /^$match_domain$/) {
8673: $homeserver = &domain($cdom,'primary');
8674: }
8675: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
8676: my $info;
8677: if (ref($inbound) eq 'HASH') {
8678: $info = &freeze_escape($inbound);
8679: }
8680: my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
8681: ':'.&escape($action).':'.&escape($ownername).':'.
8682: &escape($ownerdomain).':'.&escape($fullname).':'.
1.1172.2.45 raeburn 8683: &escape($title).':'.&escape($code).':'.
8684: &escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);
1.1172.2.38 raeburn 8685: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
8686: my @items = split(/&/,$response);
8687: foreach my $item (@items) {
8688: my ($key,$value) = split('=',$item);
8689: $crsreqresponse{&unescape($key)} = &thaw_unescape($value);
8690: }
8691: }
8692: }
8693: return \%crsreqresponse;
8694: }
8695:
1.1172.2.78 raeburn 8696: sub auto_export_grades {
8697: my ($cdom,$cnum,$inforef,$gradesref) = @_;
8698: my ($homeserver,%exportresponse);
8699: if ($cdom =~ /^$match_domain$/) {
8700: $homeserver = &domain($cdom,'primary');
8701: }
8702: unless (($homeserver eq 'no_host') || ($homeserver eq '')) {
8703: my $info;
8704: if (ref($inforef) eq 'HASH') {
8705: $info = &freeze_escape($inforef);
8706: }
8707: if (ref($gradesref) eq 'HASH') {
8708: my $grades = &freeze_escape($gradesref);
8709: my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
8710: $info.':'.$grades,$homeserver);
8711: unless ($response =~ /(con_lost|error|no_such_host|refused|unknown_command)/) {
8712: my @items = split(/&/,$response);
8713: foreach my $item (@items) {
8714: my ($key,$value) = split('=',$item);
8715: $exportresponse{&unescape($key)} = &thaw_unescape($value);
8716: }
8717: }
8718: }
8719: }
8720: return \%exportresponse;
8721: }
8722:
1.1172.2.68 raeburn 8723: sub check_instcode_cloning {
8724: my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
8725: unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
8726: return;
8727: }
8728: my $canclone;
8729: if (@{$code_order} > 0) {
8730: my $instcoderegexp ='^';
8731: my @clonecodes = split(/\&/,$cloner);
8732: foreach my $item (@{$code_order}) {
8733: if (grep(/^\Q$item\E=/,@clonecodes)) {
8734: foreach my $pair (@clonecodes) {
8735: my ($key,$val) = split(/\=/,$pair,2);
8736: $val = &unescape($val);
8737: if ($key eq $item) {
8738: $instcoderegexp .= '('.$val.')';
8739: last;
8740: }
8741: }
8742: } else {
8743: $instcoderegexp .= $codedefaults->{$item};
8744: }
8745: }
8746: $instcoderegexp .= '$';
8747: my (@from,@to);
8748: eval {
8749: (@from) = ($clonefromcode =~ /$instcoderegexp/);
8750: (@to) = ($clonetocode =~ /$instcoderegexp/);
8751: };
8752: if ((@from > 0) && (@to > 0)) {
8753: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
8754: if (!@diffs) {
8755: $canclone = 1;
8756: }
8757: }
8758: }
8759: return $canclone;
8760: }
8761:
8762: sub default_instcode_cloning {
8763: my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
8764: my (%codedefaults,@code_order,$canclone);
8765: if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
8766: %codedefaults = %{$codedefaultsref};
8767: @code_order = @{$codeorderref};
8768: } elsif ($clonedom) {
8769: &auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
8770: }
8771: if (($domdefclone) && (@code_order)) {
8772: my @clonecodes = split(/\+/,$domdefclone);
8773: my $instcoderegexp ='^';
8774: foreach my $item (@code_order) {
8775: if (grep(/^\Q$item\E$/,@clonecodes)) {
8776: $instcoderegexp .= '('.$codedefaults{$item}.')';
8777: } else {
8778: $instcoderegexp .= $codedefaults{$item};
8779: }
8780: }
8781: $instcoderegexp .= '$';
8782: my (@from,@to);
8783: eval {
8784: (@from) = ($clonefromcode =~ /$instcoderegexp/);
8785: (@to) = ($clonetocode =~ /$instcoderegexp/);
8786: };
8787: if ((@from > 0) && (@to > 0)) {
8788: my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
8789: if (!@diffs) {
8790: $canclone = 1;
8791: }
8792: }
8793: }
8794: return $canclone;
8795: }
8796:
1.679 raeburn 8797: # ------------------------------------------------------- Course Group routines
8798:
8799: sub get_coursegroups {
1.809 raeburn 8800: my ($cdom,$cnum,$group,$namespace) = @_;
8801: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 8802: }
8803:
1.679 raeburn 8804: sub modify_coursegroup {
8805: my ($cdom,$cnum,$groupsettings) = @_;
8806: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
8807: }
8808:
1.809 raeburn 8809: sub toggle_coursegroup_status {
8810: my ($cdom,$cnum,$group,$action) = @_;
8811: my ($from_namespace,$to_namespace);
8812: if ($action eq 'delete') {
8813: $from_namespace = 'coursegroups';
8814: $to_namespace = 'deleted_groups';
8815: } else {
8816: $from_namespace = 'deleted_groups';
8817: $to_namespace = 'coursegroups';
8818: }
8819: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 8820: if (my $tmp = &error(%curr_group)) {
8821: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
8822: return ('read error',$tmp);
8823: } else {
8824: my %savedsettings = %curr_group;
1.809 raeburn 8825: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 8826: my $deloutcome;
8827: if ($result eq 'ok') {
1.809 raeburn 8828: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 8829: } else {
8830: return ('write error',$result);
8831: }
8832: if ($deloutcome eq 'ok') {
8833: return 'ok';
8834: } else {
8835: return ('delete error',$deloutcome);
8836: }
8837: }
8838: }
8839:
1.679 raeburn 8840: sub modify_group_roles {
1.957 raeburn 8841: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 8842: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
8843: my $role = 'gr/'.&escape($userprivs);
8844: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 8845: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 8846: if ($result eq 'ok') {
8847: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
8848: }
1.679 raeburn 8849: return $result;
8850: }
8851:
8852: sub modify_coursegroup_membership {
8853: my ($cdom,$cnum,$membership) = @_;
8854: my $result = &put('groupmembership',$membership,$cdom,$cnum);
8855: return $result;
8856: }
8857:
1.682 raeburn 8858: sub get_active_groups {
8859: my ($udom,$uname,$cdom,$cnum) = @_;
8860: my $now = time;
8861: my %groups = ();
8862: foreach my $key (keys(%env)) {
1.811 albertel 8863: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 8864: my ($start,$end) = split(/\./,$env{$key});
8865: if (($end!=0) && ($end<$now)) { next; }
8866: if (($start!=0) && ($start>$now)) { next; }
8867: if ($1 eq $cdom && $2 eq $cnum) {
8868: $groups{$3} = $env{$key} ;
8869: }
8870: }
8871: }
8872: return %groups;
8873: }
8874:
1.683 raeburn 8875: sub get_group_membership {
8876: my ($cdom,$cnum,$group) = @_;
8877: return(&dump('groupmembership',$cdom,$cnum,$group));
8878: }
8879:
8880: sub get_users_groups {
8881: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 8882: my @usersgroups;
1.683 raeburn 8883: my $cachetime=1800;
8884:
8885: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 8886: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
8887: if (defined($cached)) {
1.734 albertel 8888: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 8889: } else {
8890: $grouplist = '';
1.816 raeburn 8891: my $courseurl = &courseid_to_courseurl($courseid);
1.1166 raeburn 8892: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 8893: my $access_end = $env{'course.'.$courseid.
8894: '.default_enrollment_end_date'};
8895: my $now = time;
8896: foreach my $key (keys(%roleshash)) {
8897: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
8898: my $group = $1;
8899: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
8900: my $start = $2;
8901: my $end = $1;
8902: if ($start == -1) { next; } # deleted from group
8903: if (($start!=0) && ($start>$now)) { next; }
8904: if (($end!=0) && ($end<$now)) {
8905: if ($access_end && $access_end < $now) {
8906: if ($access_end - $end < 86400) {
8907: push(@usersgroups,$group);
1.733 raeburn 8908: }
8909: }
1.817 raeburn 8910: next;
1.733 raeburn 8911: }
1.817 raeburn 8912: push(@usersgroups,$group);
1.683 raeburn 8913: }
8914: }
8915: }
1.817 raeburn 8916: @usersgroups = &sort_course_groups($courseid,@usersgroups);
8917: $grouplist = join(':',@usersgroups);
8918: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 8919: }
1.733 raeburn 8920: return @usersgroups;
1.683 raeburn 8921: }
8922:
8923: sub devalidate_getgroups_cache {
8924: my ($udom,$uname,$cdom,$cnum)=@_;
8925: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 8926:
1.683 raeburn 8927: my $hashid="$udom:$uname:$courseid";
8928: &devalidate_cache_new('getgroups',$hashid);
8929: }
8930:
1.12 www 8931: # ------------------------------------------------------------------ Plain Text
8932:
8933: sub plaintext {
1.988 raeburn 8934: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 8935: if ($short =~ m{^cr/}) {
1.758 albertel 8936: return (split('/',$short))[-1];
8937: }
1.742 raeburn 8938: if (!defined($cid)) {
8939: $cid = $env{'request.course.id'};
8940: }
8941: my %rolenames = (
1.1008 raeburn 8942: Course => 'std',
8943: Community => 'alt1',
1.742 raeburn 8944: );
1.1037 raeburn 8945: if ($cid ne '') {
8946: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
8947: unless ($forcedefault) {
8948: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
8949: &Apache::lonlocal::mt_escape(\$roletext);
8950: return &Apache::lonlocal::mt($roletext);
8951: }
8952: }
8953: }
8954: if ((defined($type)) && (defined($rolenames{$type})) &&
8955: (defined($rolenames{$type})) &&
8956: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 8957: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 8958: } elsif ($cid ne '') {
8959: my $crstype = $env{'course.'.$cid.'.type'};
8960: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
8961: (defined($prp{$short}{$rolenames{$crstype}}))) {
8962: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
8963: }
1.742 raeburn 8964: }
1.1037 raeburn 8965: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 8966: }
8967:
8968: # ----------------------------------------------------------------- Assign Role
8969:
8970: sub assignrole {
1.957 raeburn 8971: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
8972: $context)=@_;
1.21 www 8973: my $mrole;
8974: if ($role =~ /^cr\//) {
1.393 www 8975: my $cwosec=$url;
1.811 albertel 8976: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 8977: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 8978: my $refused = 1;
8979: if ($context eq 'requestcourses') {
8980: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
8981: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
8982: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
8983: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
8984: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
8985: if ($crsenv{'internal.courseowner'} eq
8986: $env{'user.name'}.':'.$env{'user.domain'}) {
8987: $refused = '';
8988: }
8989: }
8990: }
8991: }
8992: }
8993: if ($refused) {
8994: &logthis('Refused custom assignrole: '.
8995: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
8996: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
8997: return 'refused';
8998: }
1.104 www 8999: }
1.21 www 9000: $mrole='cr';
1.678 raeburn 9001: } elsif ($role =~ /^gr\//) {
9002: my $cwogrp=$url;
1.811 albertel 9003: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 9004: unless (&allowed('mdg',$cwogrp)) {
9005: &logthis('Refused group assignrole: '.
9006: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
9007: $env{'user.name'}.' at '.$env{'user.domain'});
9008: return 'refused';
9009: }
9010: $mrole='gr';
1.21 www 9011: } else {
1.82 www 9012: my $cwosec=$url;
1.811 albertel 9013: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 9014: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
9015: my $refused;
9016: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
9017: if (!(&allowed('c'.$role,$url))) {
9018: $refused = 1;
9019: }
9020: } else {
9021: $refused = 1;
9022: }
1.947 raeburn 9023: if ($refused) {
1.1045 raeburn 9024: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
9025: if (!$selfenroll && $context eq 'course') {
9026: my %crsenv;
9027: if ($role eq 'cc' || $role eq 'co') {
9028: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9029: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
9030: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
9031: if ($crsenv{'internal.courseowner'} eq
9032: $env{'user.name'}.':'.$env{'user.domain'}) {
9033: $refused = '';
9034: }
9035: }
9036: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
9037: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
9038: if ($crsenv{'internal.courseowner'} eq
9039: $env{'user.name'}.':'.$env{'user.domain'}) {
9040: $refused = '';
9041: }
9042: }
9043: }
9044: }
9045: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 9046: $refused = '';
1.1017 raeburn 9047: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 9048: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 9049: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 9050: my $wrongcc;
9051: if ($cnum =~ /^$match_community$/) {
9052: $wrongcc = 1 if ($role eq 'cc');
9053: } else {
9054: $wrongcc = 1 if ($role eq 'co');
9055: }
9056: unless ($wrongcc) {
9057: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
9058: if ($crsenv{'internal.courseowner'} eq
9059: $env{'user.name'}.':'.$env{'user.domain'}) {
9060: $refused = '';
9061: }
1.1017 raeburn 9062: }
9063: }
1.1172.2.9 raeburn 9064: } elsif ($context eq 'requestauthor') {
9065: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
9066: ($url eq '/'.$udom.'/') && ($role eq 'au')) {
9067: if ($env{'environment.requestauthor'} eq 'automatic') {
9068: $refused = '';
9069: } else {
9070: my %domdefaults = &get_domain_defaults($udom);
9071: if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
9072: my $checkbystatus;
9073: if ($env{'user.adv'}) {
9074: my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
9075: if ($disposition eq 'automatic') {
9076: $refused = '';
9077: } elsif ($disposition eq '') {
9078: $checkbystatus = 1;
9079: }
9080: } else {
9081: $checkbystatus = 1;
9082: }
9083: if ($checkbystatus) {
9084: if ($env{'environment.inststatus'}) {
9085: my @inststatuses = split(/,/,$env{'environment.inststatus'});
9086: foreach my $type (@inststatuses) {
9087: if (($type ne '') &&
9088: ($domdefaults{'requestauthor'}{$type} eq 'automatic')) {
9089: $refused = '';
9090: }
9091: }
9092: } elsif ($domdefaults{'requestauthor'}{'default'} eq 'automatic') {
9093: $refused = '';
9094: }
9095: }
9096: }
9097: }
9098: }
1.1017 raeburn 9099: }
9100: if ($refused) {
1.947 raeburn 9101: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
9102: ' '.$role.' '.$end.' '.$start.' by '.
9103: $env{'user.name'}.' at '.$env{'user.domain'});
9104: return 'refused';
9105: }
1.932 raeburn 9106: }
1.1131 raeburn 9107: } elsif ($role eq 'au') {
9108: if ($url ne '/'.$udom.'/') {
9109: &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
9110: ' to assign author role for '.$uname.':'.$udom.
9111: ' in domain: '.$url.' refused (wrong domain).');
9112: return 'refused';
9113: }
1.104 www 9114: }
1.21 www 9115: $mrole=$role;
9116: }
1.620 albertel 9117: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 9118: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 9119: if ($end) { $command.='_'.$end; }
1.21 www 9120: if ($start) {
9121: if ($end) {
1.81 www 9122: $command.='_'.$start;
1.21 www 9123: } else {
1.81 www 9124: $command.='_0_'.$start;
1.21 www 9125: }
9126: }
1.739 raeburn 9127: my $origstart = $start;
9128: my $origend = $end;
1.957 raeburn 9129: my $delflag;
1.357 www 9130: # actually delete
9131: if ($deleteflag) {
1.373 www 9132: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 9133: # modify command to delete the role
1.620 albertel 9134: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 9135: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 9136: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 9137: # set start and finish to negative values for userrolelog
9138: $start=-1;
9139: $end=-1;
1.957 raeburn 9140: $delflag = 1;
1.357 www 9141: }
9142: }
9143: # send command
1.349 www 9144: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 9145: # log new user role if status is ok
1.349 www 9146: if ($answer eq 'ok') {
1.663 raeburn 9147: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.1172.2.9 raeburn 9148: if (($role eq 'cc') || ($role eq 'in') ||
9149: ($role eq 'ep') || ($role eq 'ad') ||
9150: ($role eq 'ta') || ($role eq 'st') ||
9151: ($role=~/^cr/) || ($role eq 'gr') ||
9152: ($role eq 'co')) {
1.1172.2.13 raeburn 9153: # for course roles, perform group memberships changes triggered by role change.
9154: unless ($role =~ /^gr/) {
9155: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
9156: $origstart,$selfenroll,$context);
9157: }
1.1172.2.9 raeburn 9158: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9159: $selfenroll,$context);
9160: } elsif (($role eq 'li') || ($role eq 'dg') || ($role eq 'sc') ||
1.1172.2.90 raeburn 9161: ($role eq 'au') || ($role eq 'dc') || ($role eq 'dh') ||
9162: ($role eq 'da')) {
1.1172.2.9 raeburn 9163: &domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9164: $context);
9165: } elsif (($role eq 'ca') || ($role eq 'aa')) {
9166: &coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
9167: $context);
9168: }
1.1053 raeburn 9169: if ($role eq 'cc') {
9170: &autoupdate_coowners($url,$end,$start,$uname,$udom);
9171: }
1.349 www 9172: }
9173: return $answer;
1.169 harris41 9174: }
9175:
1.1053 raeburn 9176: sub autoupdate_coowners {
9177: my ($url,$end,$start,$uname,$udom) = @_;
9178: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
9179: if (($cdom ne '') && ($cnum ne '')) {
9180: my $now = time;
9181: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
9182: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
9183: my %coursehash = &coursedescription($cdom.'_'.$cnum);
9184: my $instcode = $coursehash{'internal.coursecode'};
9185: if ($instcode ne '') {
1.1056 raeburn 9186: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
9187: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 9188: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 9189: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
9190: if ($result eq 'valid') {
9191: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 9192: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9193: push(@newcoowners,$coowner);
9194: }
9195: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
9196: push(@newcoowners,$uname.':'.$udom);
9197: }
9198: @newcoowners = sort(@newcoowners);
9199: } else {
9200: push(@newcoowners,$uname.':'.$udom);
9201: }
9202: } else {
9203: if ($coursehash{'internal.co-owners'}) {
9204: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
9205: unless ($coowner eq $uname.':'.$udom) {
9206: push(@newcoowners,$coowner);
9207: }
9208: }
9209: unless (@newcoowners > 0) {
9210: $delcoowners = 1;
9211: $coowners = '';
9212: }
9213: }
9214: }
9215: if (@newcoowners || $delcoowners) {
9216: &store_coowners($cdom,$cnum,$coursehash{'home'},
9217: $delcoowners,@newcoowners);
9218: }
9219: }
9220: }
9221: }
9222: }
9223: }
9224: }
9225:
9226: sub store_coowners {
9227: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
9228: my $cid = $cdom.'_'.$cnum;
9229: my ($coowners,$delresult,$putresult);
9230: if (@newcoowners) {
9231: $coowners = join(',',@newcoowners);
9232: my %coownershash = (
9233: 'internal.co-owners' => $coowners,
9234: );
9235: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
9236: if ($putresult eq 'ok') {
9237: if ($env{'course.'.$cid.'.num'} eq $cnum) {
9238: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
9239: }
9240: }
9241: }
9242: if ($delcoowners) {
9243: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
9244: if ($delresult eq 'ok') {
9245: if ($env{'course.'.$cid.'.internal.co-owners'}) {
9246: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
9247: }
9248: }
9249: }
9250: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
9251: my %crsinfo =
9252: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
9253: if (ref($crsinfo{$cid}) eq 'HASH') {
9254: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
9255: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
9256: }
9257: }
9258: }
9259:
1.169 harris41 9260: # -------------------------------------------------- Modify user authentication
1.197 www 9261: # Overrides without validation
9262:
1.169 harris41 9263: sub modifyuserauth {
9264: my ($udom,$uname,$umode,$upass)=@_;
9265: my $uhome=&homeserver($uname,$udom);
1.197 www 9266: unless (&allowed('mau',$udom)) { return 'refused'; }
9267: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 9268: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9269: ' in domain '.$env{'request.role.domain'});
1.169 harris41 9270: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
9271: &escape($upass),$uhome);
1.620 albertel 9272: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 9273: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
9274: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
9275: &log($udom,,$uname,$uhome,
1.620 albertel 9276: 'Authentication changed by '.$env{'user.domain'}.', '.
9277: $env{'user.name'}.', '.$umode.
1.197 www 9278: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 9279: unless ($reply eq 'ok') {
1.197 www 9280: &logthis('Authentication mode error: '.$reply);
1.169 harris41 9281: return 'error: '.$reply;
9282: }
1.170 harris41 9283: return 'ok';
1.80 www 9284: }
9285:
1.81 www 9286: # --------------------------------------------------------------- Modify a user
1.80 www 9287:
1.81 www 9288: sub modifyuser {
1.206 matthew 9289: my ($udom, $uname, $uid,
9290: $umode, $upass, $first,
9291: $middle, $last, $gene,
1.1058 raeburn 9292: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 9293: $udom= &LONCAPA::clean_domain($udom);
9294: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 9295: my $showcandelete = 'none';
9296: if (ref($candelete) eq 'ARRAY') {
9297: if (@{$candelete} > 0) {
9298: $showcandelete = join(', ',@{$candelete});
9299: }
9300: }
1.81 www 9301: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 9302: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 9303: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 9304: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
9305: ' desiredhome not specified').
1.620 albertel 9306: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
9307: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 9308: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 9309: my $newuser;
9310: if ($uhome eq 'no_host') {
9311: $newuser = 1;
9312: }
1.80 www 9313: # ----------------------------------------------------------------- Create User
1.406 albertel 9314: if (($uhome eq 'no_host') &&
9315: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 9316: my $unhome='';
1.844 albertel 9317: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 9318: $unhome = $desiredhome;
1.620 albertel 9319: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
9320: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 9321: } else { # load balancing routine for determining $unhome
1.81 www 9322: my $loadm=10000000;
1.841 albertel 9323: my %servers = &get_servers($udom,'library');
9324: foreach my $tryserver (keys(%servers)) {
9325: my $answer=reply('load',$tryserver);
9326: if (($answer=~/\d+/) && ($answer<$loadm)) {
9327: $loadm=$answer;
9328: $unhome=$tryserver;
9329: }
1.80 www 9330: }
9331: }
9332: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 9333: return 'error: unable to find a home server for '.$uname.
9334: ' in domain '.$udom;
1.80 www 9335: }
9336: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
9337: &escape($upass),$unhome);
9338: unless ($reply eq 'ok') {
9339: return 'error: '.$reply;
9340: }
1.230 stredwic 9341: $uhome=&homeserver($uname,$udom,'true');
1.80 www 9342: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 9343: return 'error: unable verify users home machine.';
1.80 www 9344: }
1.209 matthew 9345: } # End of creation of new user
1.80 www 9346: # ---------------------------------------------------------------------- Add ID
9347: if ($uid) {
9348: $uid=~tr/A-Z/a-z/;
9349: my %uidhash=&idrget($udom,$uname);
1.196 www 9350: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
9351: && (!$forceid)) {
1.80 www 9352: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 9353: return 'error: user id "'.$uid.'" does not match '.
9354: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 9355: }
9356: } else {
9357: &idput($udom,($uname => $uid));
9358: }
9359: }
9360: # -------------------------------------------------------------- Add names, etc
1.313 matthew 9361: my @tmp=&get('environment',
1.899 raeburn 9362: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 9363: 'permanentemail','inststatus'],
1.134 albertel 9364: $udom,$uname);
1.1075 raeburn 9365: my (%names,%oldnames);
1.313 matthew 9366: if ($tmp[0] =~ m/^error:.*/) {
9367: %names=();
9368: } else {
9369: %names = @tmp;
1.1075 raeburn 9370: %oldnames = %names;
1.313 matthew 9371: }
1.388 www 9372: #
1.1058 raeburn 9373: # If name, email and/or uid are blank (e.g., because an uploaded file
9374: # of users did not contain them), do not overwrite existing values
9375: # unless field is in $candelete array ref.
9376: #
9377:
9378: my @fields = ('firstname','middlename','lastname','generation',
9379: 'permanentemail','id');
9380: my %newvalues;
9381: if (ref($candelete) eq 'ARRAY') {
9382: foreach my $field (@fields) {
9383: if (grep(/^\Q$field\E$/,@{$candelete})) {
9384: if ($field eq 'firstname') {
9385: $names{$field} = $first;
9386: } elsif ($field eq 'middlename') {
9387: $names{$field} = $middle;
9388: } elsif ($field eq 'lastname') {
9389: $names{$field} = $last;
9390: } elsif ($field eq 'generation') {
9391: $names{$field} = $gene;
9392: } elsif ($field eq 'permanentemail') {
9393: $names{$field} = $email;
9394: } elsif ($field eq 'id') {
9395: $names{$field} = $uid;
9396: }
9397: }
9398: }
9399: }
1.388 www 9400: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 9401: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 9402: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 9403: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 9404: if ($email) {
9405: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 9406: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 9407: }
1.899 raeburn 9408: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 9409: if (defined($inststatus)) {
9410: $names{'inststatus'} = '';
9411: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
9412: if (ref($usertypes) eq 'HASH') {
9413: my @okstatuses;
9414: foreach my $item (split(/:/,$inststatus)) {
9415: if (defined($usertypes->{$item})) {
9416: push(@okstatuses,$item);
9417: }
9418: }
9419: if (@okstatuses) {
9420: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
9421: }
9422: }
9423: }
1.1075 raeburn 9424: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 9425: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 9426: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 9427: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
9428: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
9429: } else {
9430: $logmsg .= ' during self creation';
9431: }
1.1075 raeburn 9432: my $changed;
9433: if ($newuser) {
9434: $changed = 1;
9435: } else {
9436: foreach my $field (@fields) {
9437: if ($names{$field} ne $oldnames{$field}) {
9438: $changed = 1;
9439: last;
9440: }
9441: }
9442: }
9443: unless ($changed) {
9444: $logmsg = 'No changes in user information needed for: '.$logmsg;
9445: &logthis($logmsg);
9446: return 'ok';
9447: }
9448: my $reply = &put('environment', \%names, $udom,$uname);
9449: if ($reply ne 'ok') {
9450: return 'error: '.$reply;
9451: }
1.1087 raeburn 9452: if ($names{'permanentemail'} ne $oldnames{'permanentemail'}) {
9453: &Apache::lonnet::devalidate_cache_new('emailscache',$uname.':'.$udom);
9454: }
1.1075 raeburn 9455: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
9456: &devalidate_cache_new('namescache',$uname.':'.$udom);
9457: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 9458: &logthis($logmsg);
1.134 albertel 9459: return 'ok';
1.80 www 9460: }
9461:
1.81 www 9462: # -------------------------------------------------------------- Modify student
1.80 www 9463:
1.81 www 9464: sub modifystudent {
9465: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 9466: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.1172.2.76 raeburn 9467: $selfenroll,$context,$inststatus,$credits,$instsec)=@_;
1.455 albertel 9468: if (!$cid) {
1.620 albertel 9469: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9470: return 'not_in_class';
9471: }
1.80 www 9472: }
9473: # --------------------------------------------------------------- Make the user
1.81 www 9474: my $reply=&modifyuser
1.209 matthew 9475: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 9476: $desiredhome,$email,$inststatus);
1.80 www 9477: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 9478: # This will cause &modify_student_enrollment to get the uid from the
1.1172.2.31 raeburn 9479: # student's environment
1.297 matthew 9480: $uid = undef if (!$forceid);
1.455 albertel 9481: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.1172.2.19 raeburn 9482: $gene,$usec,$end,$start,$type,$locktype,
1.1172.2.76 raeburn 9483: $cid,$selfenroll,$context,$credits,$instsec);
1.297 matthew 9484: return $reply;
9485: }
9486:
9487: sub modify_student_enrollment {
1.1172.2.23 raeburn 9488: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
1.1172.2.76 raeburn 9489: $locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_;
1.455 albertel 9490: my ($cdom,$cnum,$chome);
9491: if (!$cid) {
1.620 albertel 9492: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 9493: return 'not_in_class';
9494: }
1.620 albertel 9495: $cdom=$env{'course.'.$cid.'.domain'};
9496: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 9497: } else {
9498: ($cdom,$cnum)=split(/_/,$cid);
9499: }
1.620 albertel 9500: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 9501: if (!$chome) {
1.457 raeburn 9502: $chome=&homeserver($cnum,$cdom);
1.297 matthew 9503: }
1.455 albertel 9504: if (!$chome) { return 'unknown_course'; }
1.297 matthew 9505: # Make sure the user exists
1.81 www 9506: my $uhome=&homeserver($uname,$udom);
9507: if (($uhome eq '') || ($uhome eq 'no_host')) {
9508: return 'error: no such user';
9509: }
1.297 matthew 9510: # Get student data if we were not given enough information
9511: if (!defined($first) || $first eq '' ||
9512: !defined($last) || $last eq '' ||
9513: !defined($uid) || $uid eq '' ||
9514: !defined($middle) || $middle eq '' ||
9515: !defined($gene) || $gene eq '') {
1.294 matthew 9516: # They did not supply us with enough data to enroll the student, so
9517: # we need to pick up more information.
1.297 matthew 9518: my %tmp = &get('environment',
1.294 matthew 9519: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 9520: ,$udom,$uname);
9521:
1.800 albertel 9522: #foreach my $key (keys(%tmp)) {
9523: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 9524: #}
1.294 matthew 9525: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
9526: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
9527: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 9528: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 9529: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
9530: }
1.556 albertel 9531: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.1148 raeburn 9532: my $user = "$uname:$udom";
9533: my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
1.487 albertel 9534: my $reply=cput('classlist',
1.1148 raeburn 9535: {$user =>
1.1172.2.76 raeburn 9536: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },
1.487 albertel 9537: $cdom,$cnum);
1.1148 raeburn 9538: if (($reply eq 'ok') || ($reply eq 'delayed')) {
9539: &devalidate_getsection_cache($udom,$uname,$cid);
9540: } else {
1.81 www 9541: return 'error: '.$reply;
9542: }
1.297 matthew 9543: # Add student role to user
1.83 www 9544: my $uurl='/'.$cid;
1.81 www 9545: $uurl=~s/\_/\//g;
9546: if ($usec) {
9547: $uurl.='/'.$usec;
9548: }
1.1148 raeburn 9549: my $result = &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,
9550: $selfenroll,$context);
9551: if ($result ne 'ok') {
9552: if ($old_entry{$user} ne '') {
9553: $reply = &cput('classlist',\%old_entry,$cdom,$cnum);
9554: } else {
9555: $reply = &del('classlist',[$user],$cdom,$cnum);
9556: }
9557: }
9558: return $result;
1.21 www 9559: }
9560:
1.556 albertel 9561: sub format_name {
9562: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
9563: my $name;
9564: if ($first ne 'lastname') {
9565: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
9566: } else {
9567: if ($lastname=~/\S/) {
9568: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
9569: $name=~s/\s+,/,/;
9570: } else {
9571: $name.= $firstname.' '.$middlename.' '.$generation;
9572: }
9573: }
9574: $name=~s/^\s+//;
9575: $name=~s/\s+$//;
9576: $name=~s/\s+/ /g;
9577: return $name;
9578: }
9579:
1.84 www 9580: # ------------------------------------------------- Write to course preferences
9581:
9582: sub writecoursepref {
9583: my ($courseid,%prefs)=@_;
9584: $courseid=~s/^\///;
9585: $courseid=~s/\_/\//g;
9586: my ($cdomain,$cnum)=split(/\//,$courseid);
9587: my $chome=homeserver($cnum,$cdomain);
9588: if (($chome eq '') || ($chome eq 'no_host')) {
9589: return 'error: no such course';
9590: }
9591: my $cstring='';
1.800 albertel 9592: foreach my $pref (keys(%prefs)) {
9593: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 9594: }
1.84 www 9595: $cstring=~s/\&$//;
9596: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
9597: }
9598:
9599: # ---------------------------------------------------------- Make/modify course
9600:
9601: sub createcourse {
1.741 raeburn 9602: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 9603: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 9604: $url=&declutter($url);
9605: my $cid='';
1.1028 raeburn 9606: if ($context eq 'requestcourses') {
9607: my $can_create = 0;
9608: my ($ownername,$ownerdom) = split(':',$course_owner);
9609: if ($udom eq $ownerdom) {
9610: if (&usertools_access($ownername,$ownerdom,$category,undef,
9611: $context)) {
9612: $can_create = 1;
9613: }
9614: } else {
9615: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
9616: $category);
9617: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
9618: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
9619: if (@curr > 0) {
9620: my @options = qw(approval validate autolimit);
9621: my $optregex = join('|',@options);
9622: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
9623: $can_create = 1;
9624: }
9625: }
9626: }
9627: }
9628: if ($can_create) {
9629: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
9630: unless (&allowed('ccc',$udom)) {
9631: return 'refused';
9632: }
1.1017 raeburn 9633: }
9634: } else {
9635: return 'refused';
9636: }
1.1028 raeburn 9637: } elsif (!&allowed('ccc',$udom)) {
9638: return 'refused';
1.84 www 9639: }
1.1011 raeburn 9640: # --------------------------------------------------------------- Get Unique ID
9641: my $uname;
9642: if ($cnum =~ /^$match_courseid$/) {
9643: my $chome=&homeserver($cnum,$udom,'true');
9644: if (($chome eq '') || ($chome eq 'no_host')) {
9645: $uname = $cnum;
9646: } else {
1.1038 raeburn 9647: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 9648: }
9649: } else {
1.1038 raeburn 9650: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 9651: }
9652: return $uname if ($uname =~ /^error/);
9653: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 9654: if (!defined($course_server)) {
9655: if (defined(&domain($udom,'primary'))) {
9656: $course_server = &domain($udom,'primary');
9657: } else {
9658: $course_server = $env{'user.home'};
9659: }
9660: }
9661: my %host_servers =
9662: &Apache::lonnet::get_servers($udom,'library');
9663: unless ($host_servers{$course_server}) {
9664: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 9665: }
1.84 www 9666: # ------------------------------------------------------------- Make the course
9667: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 9668: $course_server);
1.84 www 9669: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 9670: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 9671: if (($uhome eq '') || ($uhome eq 'no_host')) {
9672: return 'error: no such course';
9673: }
1.271 www 9674: # ----------------------------------------------------------------- Course made
1.516 raeburn 9675: # log existence
1.1029 raeburn 9676: my $now = time;
1.918 raeburn 9677: my $newcourse = {
9678: $udom.'_'.$uname => {
1.921 raeburn 9679: description => $description,
9680: inst_code => $inst_code,
9681: owner => $course_owner,
9682: type => $crstype,
1.1029 raeburn 9683: creator => $env{'user.name'}.':'.
9684: $env{'user.domain'},
9685: created => $now,
9686: context => $context,
1.918 raeburn 9687: },
9688: };
1.921 raeburn 9689: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 9690: # set toplevel url
1.271 www 9691: my $topurl=$url;
9692: unless ($nonstandard) {
9693: # ------------------------------------------ For standard courses, make top url
9694: my $mapurl=&clutter($url);
1.278 www 9695: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 9696: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 9697: <map>
9698: <resource id="1" type="start"></resource>
9699: <resource id="2" src="$mapurl"></resource>
9700: <resource id="3" type="finish"></resource>
9701: <link index="1" from="1" to="2"></link>
9702: <link index="2" from="2" to="3"></link>
9703: </map>
9704: ENDINITMAP
9705: $topurl=&declutter(
1.638 albertel 9706: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 9707: );
9708: }
9709: # ----------------------------------------------------------- Write preferences
1.84 www 9710: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 9711: ('description' => $description,
9712: 'url' => $topurl,
9713: 'internal.creator' => $env{'user.name'}.':'.
9714: $env{'user.domain'},
9715: 'internal.created' => $now,
9716: 'internal.creationcontext' => $context)
9717: );
1.84 www 9718: return '/'.$udom.'/'.$uname;
9719: }
9720:
1.1011 raeburn 9721: # ------------------------------------------------------------------- Create ID
9722: sub generate_coursenum {
1.1038 raeburn 9723: my ($udom,$crstype) = @_;
1.1011 raeburn 9724: my $domdesc = &domain($udom);
9725: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 9726: my $first;
9727: if ($crstype eq 'Community') {
9728: $first = '0';
9729: } else {
9730: $first = int(1+rand(9));
9731: }
9732: my $uname=$first.
1.1011 raeburn 9733: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
9734: substr($$.time,0,5).unpack("H8",pack("I32",time)).
9735: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
9736: # ----------------------------------------------- Make sure that does not exist
9737: my $uhome=&homeserver($uname,$udom,'true');
9738: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 9739: if ($crstype eq 'Community') {
9740: $first = '0';
9741: } else {
9742: $first = int(1+rand(9));
9743: }
9744: $uname=$first.
1.1011 raeburn 9745: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
9746: substr($$.time,0,5).unpack("H8",pack("I32",time)).
9747: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
9748: $uhome=&homeserver($uname,$udom,'true');
9749: unless (($uhome eq '') || ($uhome eq 'no_host')) {
9750: return 'error: unable to generate unique course-ID';
9751: }
9752: }
9753: return $uname;
9754: }
9755:
1.813 albertel 9756: sub is_course {
1.1167 droeschl 9757: my ($cdom, $cnum) = scalar(@_) == 1 ?
9758: ($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
1.1172.2.95 raeburn 9759: return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
9760: my $uhome=&homeserver($cnum,$cdom);
9761: my $iscourse;
9762: if (grep { $_ eq $uhome } current_machine_ids()) {
9763: $iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);
9764: } else {
9765: my $hashid = $cdom.':'.$cnum;
9766: ($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
9767: unless (defined($cached)) {
9768: my %courses = &courseiddump($cdom, '.', 1, '.', '.',
9769: $cnum,undef,undef,'.');
9770: $iscourse = 0;
9771: if (exists($courses{$cdom.'_'.$cnum})) {
9772: $iscourse = 1;
9773: }
9774: &do_cache_new('iscourse',$hashid,$iscourse,3600);
9775: }
9776: }
9777: return unless($iscourse);
1.1167 droeschl 9778: return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
1.813 albertel 9779: }
9780:
1.1015 raeburn 9781: sub store_userdata {
9782: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 9783: my $result;
1.1016 raeburn 9784: if ($datakey ne '') {
1.1013 raeburn 9785: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 9786: if ($udom eq '' || $uname eq '') {
9787: $udom = $env{'user.domain'};
9788: $uname = $env{'user.name'};
9789: }
9790: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 9791: if (($uhome eq '') || ($uhome eq 'no_host')) {
9792: $result = 'error: no_host';
9793: } else {
9794: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
9795: $storehash->{'host'} = $perlvar{'lonHostID'};
9796:
9797: my $namevalue='';
9798: foreach my $key (keys(%{$storehash})) {
9799: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
9800: }
9801: $namevalue=~s/\&$//;
1.1172.2.26 raeburn 9802: unless ($namespace eq 'courserequests') {
9803: $datakey = &escape($datakey);
9804: }
1.1105 raeburn 9805: $result = &reply("store:$udom:$uname:$namespace:$datakey:".
9806: $namevalue,$uhome);
1.1013 raeburn 9807: }
9808: } else {
9809: $result = 'error: data to store was not a hash reference';
9810: }
9811: } else {
9812: $result= 'error: invalid requestkey';
9813: }
9814: return $result;
9815: }
9816:
1.21 www 9817: # ---------------------------------------------------------- Assign Custom Role
9818:
9819: sub assigncustomrole {
1.957 raeburn 9820: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9821: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 9822: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 9823: }
9824:
9825: # ----------------------------------------------------------------- Revoke Role
9826:
9827: sub revokerole {
1.957 raeburn 9828: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9829: my $now=time;
1.965 raeburn 9830: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 9831: }
9832:
9833: # ---------------------------------------------------------- Revoke Custom Role
9834:
9835: sub revokecustomrole {
1.957 raeburn 9836: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 9837: my $now=time;
1.357 www 9838: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 9839: $deleteflag,$selfenroll,$context);
1.17 www 9840: }
9841:
1.533 banghart 9842: # ------------------------------------------------------------ Disk usage
1.535 albertel 9843: sub diskusage {
1.955 raeburn 9844: my ($udom,$uname,$directorypath,$getpropath)=@_;
9845: $directorypath =~ s/\/$//;
9846: my $listing=&reply('du2:'.&escape($directorypath).':'
9847: .&escape($getpropath).':'.&escape($uname).':'
9848: .&escape($udom),homeserver($uname,$udom));
9849: if ($listing eq 'unknown_cmd') {
9850: if ($getpropath) {
9851: $directorypath = &propath($udom,$uname).'/'.$directorypath;
9852: }
9853: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
9854: }
1.514 albertel 9855: return $listing;
1.512 banghart 9856: }
9857:
1.566 banghart 9858: sub is_locked {
1.1096 raeburn 9859: my ($file_name, $domain, $user, $which) = @_;
1.566 banghart 9860: my @check;
9861: my $is_locked;
1.1093 raeburn 9862: push (@check,$file_name);
1.613 albertel 9863: my %locked = &get('file_permissions',\@check,
1.620 albertel 9864: $env{'user.domain'},$env{'user.name'});
1.615 albertel 9865: my ($tmp)=keys(%locked);
9866: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 9867:
1.566 banghart 9868: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 9869: $is_locked = 'false';
9870: foreach my $entry (@{$locked{$file_name}}) {
1.1096 raeburn 9871: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 9872: $is_locked = 'true';
1.1096 raeburn 9873: if (ref($which) eq 'ARRAY') {
9874: push(@{$which},$entry);
9875: } else {
9876: last;
9877: }
1.745 raeburn 9878: }
9879: }
1.566 banghart 9880: } else {
9881: $is_locked = 'false';
9882: }
1.1093 raeburn 9883: return $is_locked;
1.566 banghart 9884: }
9885:
1.759 albertel 9886: sub declutter_portfile {
9887: my ($file) = @_;
1.833 albertel 9888: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 9889: return $file;
9890: }
9891:
1.559 banghart 9892: # ------------------------------------------------------------- Mark as Read Only
9893:
9894: sub mark_as_readonly {
9895: my ($domain,$user,$files,$what) = @_;
1.613 albertel 9896: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 9897: my ($tmp)=keys(%current_permissions);
9898: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 9899: foreach my $file (@{$files}) {
1.759 albertel 9900: $file = &declutter_portfile($file);
1.561 banghart 9901: push(@{$current_permissions{$file}},$what);
1.559 banghart 9902: }
1.613 albertel 9903: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 9904: return;
9905: }
9906:
1.572 banghart 9907: # ------------------------------------------------------------Save Selected Files
9908:
9909: sub save_selected_files {
9910: my ($user, $path, @files) = @_;
9911: my $filename = $user."savedfiles";
1.573 banghart 9912: my @other_files = &files_not_in_path($user, $path);
1.1172.2.96 raeburn 9913: open (OUT,'>',LONCAPA::tempdir().$filename);
1.573 banghart 9914: foreach my $file (@files) {
1.620 albertel 9915: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 9916: }
9917: foreach my $file (@other_files) {
1.574 banghart 9918: print (OUT $file."\n");
1.572 banghart 9919: }
1.574 banghart 9920: close (OUT);
1.572 banghart 9921: return 'ok';
9922: }
9923:
1.574 banghart 9924: sub clear_selected_files {
9925: my ($user) = @_;
9926: my $filename = $user."savedfiles";
1.1172.2.96 raeburn 9927: open (OUT,'>',LONCAPA::tempdir().$filename);
1.574 banghart 9928: print (OUT undef);
9929: close (OUT);
9930: return ("ok");
9931: }
9932:
1.572 banghart 9933: sub files_in_path {
9934: my ($user, $path) = @_;
9935: my $filename = $user."savedfiles";
9936: my %return_files;
1.1172.2.96 raeburn 9937: open (IN,'<',LONCAPA::tempdir().$filename);
1.573 banghart 9938: while (my $line_in = <IN>) {
1.574 banghart 9939: chomp ($line_in);
9940: my @paths_and_file = split (m!/!, $line_in);
9941: my $file_part = pop (@paths_and_file);
9942: my $path_part = join ('/', @paths_and_file);
1.573 banghart 9943: $path_part.='/';
9944: my $path_and_file = $path_part.$file_part;
9945: if ($path_part eq $path) {
9946: $return_files{$file_part}= 'selected';
9947: }
9948: }
1.574 banghart 9949: close (IN);
9950: return (\%return_files);
1.572 banghart 9951: }
9952:
9953: # called in portfolio select mode, to show files selected NOT in current directory
9954: sub files_not_in_path {
9955: my ($user, $path) = @_;
9956: my $filename = $user."savedfiles";
9957: my @return_files;
9958: my $path_part;
1.1172.2.96 raeburn 9959: open(IN, '<',LONCAPA::tempdir().$filename);
1.800 albertel 9960: while (my $line = <IN>) {
1.572 banghart 9961: #ok, I know it's clunky, but I want it to work
1.800 albertel 9962: my @paths_and_file = split(m|/|, $line);
9963: my $file_part = pop(@paths_and_file);
9964: chomp($file_part);
9965: my $path_part = join('/', @paths_and_file);
1.572 banghart 9966: $path_part .= '/';
9967: my $path_and_file = $path_part.$file_part;
9968: if ($path_part ne $path) {
1.800 albertel 9969: push(@return_files, ($path_and_file));
1.572 banghart 9970: }
9971: }
1.800 albertel 9972: close(OUT);
1.574 banghart 9973: return (@return_files);
1.572 banghart 9974: }
9975:
1.745 raeburn 9976: #----------------------------------------------Get portfolio file permissions
1.629 banghart 9977:
1.745 raeburn 9978: sub get_portfile_permissions {
9979: my ($domain,$user) = @_;
1.613 albertel 9980: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 9981: my ($tmp)=keys(%current_permissions);
9982: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 9983: return \%current_permissions;
9984: }
9985:
9986: #---------------------------------------------Get portfolio file access controls
9987:
1.749 raeburn 9988: sub get_access_controls {
1.745 raeburn 9989: my ($current_permissions,$group,$file) = @_;
1.769 albertel 9990: my %access;
9991: my $real_file = $file;
9992: $file =~ s/\.meta$//;
1.745 raeburn 9993: if (defined($file)) {
1.749 raeburn 9994: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
9995: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 9996: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 9997: }
9998: }
1.745 raeburn 9999: } else {
1.749 raeburn 10000: foreach my $key (keys(%{$current_permissions})) {
10001: if ($key =~ /\0accesscontrol$/) {
10002: if (defined($group)) {
10003: if ($key !~ m-^\Q$group\E/-) {
10004: next;
10005: }
10006: }
10007: my ($fullpath) = split(/\0/,$key);
10008: if (ref($$current_permissions{$key}) eq 'HASH') {
10009: foreach my $control (keys(%{$$current_permissions{$key}})) {
10010: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
10011: }
10012: }
10013: }
10014: }
10015: }
10016: return %access;
10017: }
10018:
10019: sub modify_access_controls {
10020: my ($file_name,$changes,$domain,$user)=@_;
10021: my ($outcome,$deloutcome);
10022: my %store_permissions;
10023: my %new_values;
10024: my %new_control;
10025: my %translation;
10026: my @deletions = ();
10027: my $now = time;
10028: if (exists($$changes{'activate'})) {
10029: if (ref($$changes{'activate'}) eq 'HASH') {
10030: my @newitems = sort(keys(%{$$changes{'activate'}}));
10031: my $numnew = scalar(@newitems);
10032: for (my $i=0; $i<$numnew; $i++) {
10033: my $newkey = $newitems[$i];
10034: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 10035: if ($newkey =~ /^\d+:/) {
10036: $newkey =~ s/^(\d+)/$newid/;
10037: $translation{$1} = $newid;
10038: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
10039: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
10040: $translation{$1} = $newid;
10041: }
1.749 raeburn 10042: $new_values{$file_name."\0".$newkey} =
10043: $$changes{'activate'}{$newitems[$i]};
10044: $new_control{$newkey} = $now;
10045: }
10046: }
10047: }
10048: my %todelete;
10049: my %changed_items;
10050: foreach my $action ('delete','update') {
10051: if (exists($$changes{$action})) {
10052: if (ref($$changes{$action}) eq 'HASH') {
10053: foreach my $key (keys(%{$$changes{$action}})) {
10054: my ($itemnum) = ($key =~ /^([^:]+):/);
10055: if ($action eq 'delete') {
10056: $todelete{$itemnum} = 1;
10057: } else {
10058: $changed_items{$itemnum} = $key;
10059: }
10060: }
1.745 raeburn 10061: }
10062: }
1.749 raeburn 10063: }
10064: # get lock on access controls for file.
10065: my $lockhash = {
10066: $file_name."\0".'locked_access_records' => $env{'user.name'}.
10067: ':'.$env{'user.domain'},
10068: };
10069: my $tries = 0;
10070: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10071:
1.1172.2.79 raeburn 10072: while (($gotlock ne 'ok') && $tries < 10) {
1.749 raeburn 10073: $tries ++;
1.1172.2.79 raeburn 10074: sleep(0.1);
1.749 raeburn 10075: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
10076: }
10077: if ($gotlock eq 'ok') {
10078: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
10079: my ($tmp)=keys(%curr_permissions);
10080: if ($tmp=~/^error:/) { undef(%curr_permissions); }
10081: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
10082: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
10083: if (ref($curr_controls) eq 'HASH') {
10084: foreach my $control_item (keys(%{$curr_controls})) {
10085: my ($itemnum) = ($control_item =~ /^([^:]+):/);
10086: if (defined($todelete{$itemnum})) {
10087: push(@deletions,$file_name."\0".$control_item);
10088: } else {
10089: if (defined($changed_items{$itemnum})) {
10090: $new_control{$changed_items{$itemnum}} = $now;
10091: push(@deletions,$file_name."\0".$control_item);
10092: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
10093: } else {
10094: $new_control{$control_item} = $$curr_controls{$control_item};
10095: }
10096: }
1.745 raeburn 10097: }
10098: }
10099: }
1.970 raeburn 10100: my ($group);
10101: if (&is_course($domain,$user)) {
10102: ($group,my $file) = split(/\//,$file_name,2);
10103: }
1.749 raeburn 10104: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
10105: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
10106: $outcome = &put('file_permissions',\%new_values,$domain,$user);
10107: # remove lock
10108: my @del_lock = ($file_name."\0".'locked_access_records');
10109: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 10110: my $sqlresult =
1.970 raeburn 10111: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 10112: $group);
1.749 raeburn 10113: } else {
10114: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 10115: }
1.749 raeburn 10116: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 10117: }
10118:
1.827 raeburn 10119: sub make_public_indefinitely {
10120: my ($requrl) = @_;
10121: my $now = time;
10122: my $action = 'activate';
10123: my $aclnum = 0;
10124: if (&is_portfolio_url($requrl)) {
10125: my (undef,$udom,$unum,$file_name,$group) =
10126: &parse_portfolio_url($requrl);
10127: my $current_perms = &get_portfile_permissions($udom,$unum);
10128: my %access_controls = &get_access_controls($current_perms,
10129: $group,$file_name);
10130: foreach my $key (keys(%{$access_controls{$file_name}})) {
10131: my ($num,$scope,$end,$start) =
10132: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
10133: if ($scope eq 'public') {
10134: if ($start <= $now && $end == 0) {
10135: $action = 'none';
10136: } else {
10137: $action = 'update';
10138: $aclnum = $num;
10139: }
10140: last;
10141: }
10142: }
10143: if ($action eq 'none') {
10144: return 'ok';
10145: } else {
10146: my %changes;
10147: my $newend = 0;
10148: my $newstart = $now;
10149: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
10150: $changes{$action}{$newkey} = {
10151: type => 'public',
10152: time => {
10153: start => $newstart,
10154: end => $newend,
10155: },
10156: };
10157: my ($outcome,$deloutcome,$new_values,$translation) =
10158: &modify_access_controls($file_name,\%changes,$udom,$unum);
10159: return $outcome;
10160: }
10161: } else {
10162: return 'invalid';
10163: }
10164: }
10165:
1.745 raeburn 10166: #------------------------------------------------------Get Marked as Read Only
10167:
10168: sub get_marked_as_readonly {
10169: my ($domain,$user,$what,$group) = @_;
10170: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 10171: my @readonly_files;
1.629 banghart 10172: my $cmp1=$what;
10173: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 10174: while (my ($file_name,$value) = each(%{$current_permissions})) {
10175: if (defined($group)) {
10176: if ($file_name !~ m-^\Q$group\E/-) {
10177: next;
10178: }
10179: }
1.561 banghart 10180: if (ref($value) eq "ARRAY"){
10181: foreach my $stored_what (@{$value}) {
1.629 banghart 10182: my $cmp2=$stored_what;
1.759 albertel 10183: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 10184: $cmp2=join('',@{$stored_what});
1.745 raeburn 10185: }
1.629 banghart 10186: if ($cmp1 eq $cmp2) {
1.561 banghart 10187: push(@readonly_files, $file_name);
1.745 raeburn 10188: last;
1.563 banghart 10189: } elsif (!defined($what)) {
10190: push(@readonly_files, $file_name);
1.745 raeburn 10191: last;
1.561 banghart 10192: }
10193: }
1.745 raeburn 10194: }
1.561 banghart 10195: }
10196: return @readonly_files;
10197: }
1.577 banghart 10198: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 10199:
1.577 banghart 10200: sub get_marked_as_readonly_hash {
1.745 raeburn 10201: my ($current_permissions,$group,$what) = @_;
1.577 banghart 10202: my %readonly_files;
1.745 raeburn 10203: while (my ($file_name,$value) = each(%{$current_permissions})) {
10204: if (defined($group)) {
10205: if ($file_name !~ m-^\Q$group\E/-) {
10206: next;
10207: }
10208: }
1.577 banghart 10209: if (ref($value) eq "ARRAY"){
10210: foreach my $stored_what (@{$value}) {
1.745 raeburn 10211: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 10212: foreach my $lock_descriptor(@{$stored_what}) {
10213: if ($lock_descriptor eq 'graded') {
10214: $readonly_files{$file_name} = 'graded';
10215: } elsif ($lock_descriptor eq 'handback') {
10216: $readonly_files{$file_name} = 'handback';
10217: } else {
10218: if (!exists($readonly_files{$file_name})) {
10219: $readonly_files{$file_name} = 'locked';
10220: }
10221: }
1.745 raeburn 10222: }
1.750 banghart 10223: }
1.577 banghart 10224: }
10225: }
10226: }
10227: return %readonly_files;
10228: }
1.559 banghart 10229: # ------------------------------------------------------------ Unmark as Read Only
10230:
10231: sub unmark_as_readonly {
1.629 banghart 10232: # unmarks $file_name (if $file_name is defined), or all files locked by $what
10233: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 10234: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 10235: $file_name = &declutter_portfile($file_name);
1.634 albertel 10236: my $symb_crs = $what;
10237: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 10238: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 10239: my ($tmp)=keys(%current_permissions);
10240: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 10241: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 10242: foreach my $file (@readonly_files) {
1.759 albertel 10243: my $clean_file = &declutter_portfile($file);
10244: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 10245: my $current_locks = $current_permissions{$file};
1.563 banghart 10246: my @new_locks;
10247: my @del_keys;
10248: if (ref($current_locks) eq "ARRAY"){
10249: foreach my $locker (@{$current_locks}) {
1.632 albertel 10250: my $compare=$locker;
1.749 raeburn 10251: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 10252: $compare=join('',@{$locker});
1.746 raeburn 10253: if ($compare ne $symb_crs) {
10254: push(@new_locks, $locker);
10255: }
1.563 banghart 10256: }
10257: }
1.650 albertel 10258: if (scalar(@new_locks) > 0) {
1.563 banghart 10259: $current_permissions{$file} = \@new_locks;
10260: } else {
10261: push(@del_keys, $file);
1.613 albertel 10262: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 10263: delete($current_permissions{$file});
1.563 banghart 10264: }
10265: }
1.561 banghart 10266: }
1.613 albertel 10267: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 10268: return;
10269: }
1.512 banghart 10270:
1.17 www 10271: # ------------------------------------------------------------ Directory lister
10272:
10273: sub dirlist {
1.955 raeburn 10274: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 10275: $uri=~s/^\///;
10276: $uri=~s/\/$//;
1.253 stredwic 10277: my ($udom, $uname);
1.955 raeburn 10278: if ($getuserdir) {
1.253 stredwic 10279: $udom = $userdomain;
10280: $uname = $username;
1.955 raeburn 10281: } else {
10282: (undef,$udom,$uname)=split(/\//,$uri);
10283: if(defined($userdomain)) {
10284: $udom = $userdomain;
10285: }
10286: if(defined($username)) {
10287: $uname = $username;
10288: }
1.253 stredwic 10289: }
1.955 raeburn 10290: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 10291:
1.955 raeburn 10292: $dirRoot = $perlvar{'lonDocRoot'};
10293: if (defined($getpropath)) {
10294: $dirRoot = &propath($udom,$uname);
1.253 stredwic 10295: $dirRoot =~ s/\/$//;
1.955 raeburn 10296: } elsif (defined($getuserdir)) {
10297: my $subdir=$uname.'__';
10298: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
10299: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
10300: ."/$udom/$subdir/$uname";
10301: } elsif (defined($alternateRoot)) {
10302: $dirRoot = $alternateRoot;
1.751 banghart 10303: }
1.253 stredwic 10304:
10305: if($udom) {
10306: if($uname) {
1.1135 raeburn 10307: my $uhome = &homeserver($uname,$udom);
1.1136 raeburn 10308: if ($uhome eq 'no_host') {
10309: return ([],'no_host');
10310: }
1.955 raeburn 10311: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 10312: .$getuserdir.':'.&escape($dirRoot)
1.1135 raeburn 10313: .':'.&escape($uname).':'.&escape($udom),$uhome);
1.955 raeburn 10314: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10315: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
1.955 raeburn 10316: } else {
10317: @listing_results = map { &unescape($_); } split(/:/,$listing);
10318: }
1.605 matthew 10319: if ($listing eq 'unknown_cmd') {
1.1135 raeburn 10320: $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
1.605 matthew 10321: @listing_results = split(/:/,$listing);
10322: } else {
10323: @listing_results = map { &unescape($_); } split(/:/,$listing);
10324: }
1.1135 raeburn 10325: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
1.1136 raeburn 10326: ($listing eq 'rejected') || ($listing eq 'refused') ||
10327: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10328: return ([],$listing);
10329: } else {
10330: return (\@listing_results);
1.1135 raeburn 10331: }
1.955 raeburn 10332: } elsif(!$alternateRoot) {
1.1136 raeburn 10333: my (%allusers,%listerror);
1.841 albertel 10334: my %servers = &get_servers($udom,'library');
1.955 raeburn 10335: foreach my $tryserver (keys(%servers)) {
10336: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
10337: &escape($udom),$tryserver);
10338: if ($listing eq 'unknown_cmd') {
10339: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
10340: $udom, $tryserver);
10341: } else {
10342: @listing_results = map { &unescape($_); } split(/:/,$listing);
10343: }
1.841 albertel 10344: if ($listing eq 'unknown_cmd') {
10345: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
10346: $udom, $tryserver);
10347: @listing_results = split(/:/,$listing);
10348: } else {
10349: @listing_results =
10350: map { &unescape($_); } split(/:/,$listing);
10351: }
1.1136 raeburn 10352: if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
10353: ($listing eq 'rejected') || ($listing eq 'refused') ||
10354: ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
10355: $listerror{$tryserver} = $listing;
10356: } else {
1.841 albertel 10357: foreach my $line (@listing_results) {
10358: my ($entry) = split(/&/,$line,2);
10359: $allusers{$entry} = 1;
10360: }
10361: }
1.253 stredwic 10362: }
1.1136 raeburn 10363: my @alluserslist=();
1.800 albertel 10364: foreach my $user (sort(keys(%allusers))) {
1.1136 raeburn 10365: push(@alluserslist,$user.'&user');
1.253 stredwic 10366: }
1.1172.2.80 raeburn 10367: if (!%listerror) {
10368: # no errors
10369: return (\@alluserslist);
10370: } elsif (scalar(keys(%servers)) == 1) {
10371: # one library server, one error
10372: my ($key) = keys(%listerror);
10373: return (\@alluserslist, $listerror{$key});
10374: } elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
10375: # con_lost indicates that we might miss data from at least one
10376: # library server
10377: return (\@alluserslist, 'con_lost');
10378: } else {
10379: # multiple library servers and no con_lost -> data should be
10380: # complete.
10381: return (\@alluserslist);
10382: }
10383:
1.253 stredwic 10384: } else {
1.1136 raeburn 10385: return ([],'missing username');
1.253 stredwic 10386: }
1.955 raeburn 10387: } elsif(!defined($getpropath)) {
1.1136 raeburn 10388: my $path = $perlvar{'lonDocRoot'}.'/res/';
10389: my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
10390: return (\@all_domains);
1.955 raeburn 10391: } else {
1.1136 raeburn 10392: return ([],'missing domain');
1.275 stredwic 10393: }
10394: }
10395:
10396: # --------------------------------------------- GetFileTimestamp
10397: # This function utilizes dirlist and returns the date stamp for
10398: # when it was last modified. It will also return an error of -1
10399: # if an error occurs
10400:
10401: sub GetFileTimestamp {
1.955 raeburn 10402: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 10403: $studentDomain = &LONCAPA::clean_domain($studentDomain);
10404: $studentName = &LONCAPA::clean_username($studentName);
1.1136 raeburn 10405: my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
10406: undef,$getuserdir);
10407: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10408: return -1;
10409: }
10410: if (ref($fileref) eq 'ARRAY') {
10411: my @stats = split('&',$fileref->[0]);
1.375 matthew 10412: # @stats contains first the filename, then the stat output
10413: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 10414: } else {
10415: return -1;
1.253 stredwic 10416: }
1.26 www 10417: }
10418:
1.712 albertel 10419: sub stat_file {
10420: my ($uri) = @_;
1.787 albertel 10421: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 10422:
1.955 raeburn 10423: my ($udom,$uname,$file);
1.712 albertel 10424: if ($uri =~ m-^/(uploaded|editupload)/-) {
10425: ($udom,$uname,$file) =
1.811 albertel 10426: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 10427: $file = 'userfiles/'.$file;
10428: }
10429: if ($uri =~ m-^/res/-) {
10430: ($udom,$uname) =
1.807 albertel 10431: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 10432: $file = $uri;
10433: }
10434:
10435: if (!$udom || !$uname || !$file) {
10436: # unable to handle the uri
10437: return ();
10438: }
1.956 raeburn 10439: my $getpropath;
10440: if ($file =~ /^userfiles\//) {
10441: $getpropath = 1;
10442: }
1.1136 raeburn 10443: my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
10444: if (($error eq 'empty') || ($error eq 'no_such_dir')) {
10445: return ();
10446: } else {
10447: if (ref($listref) eq 'ARRAY') {
10448: my @stats = split('&',$listref->[0]);
10449: shift(@stats); #filename is first
10450: return @stats;
10451: }
1.712 albertel 10452: }
10453: return ();
10454: }
10455:
1.26 www 10456: # -------------------------------------------------------- Value of a Condition
10457:
1.713 albertel 10458: # gets the value of a specific preevaluated condition
10459: # stored in the string $env{user.state.<cid>}
10460: # or looks up a condition reference in the bighash and if if hasn't
10461: # already been evaluated recurses into docondval to get the value of
10462: # the condition, then memoizing it to
10463: # $env{user.state.<cid>.<condition>}
1.40 www 10464: sub directcondval {
10465: my $number=shift;
1.620 albertel 10466: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 10467: &Apache::lonuserstate::evalstate();
10468: }
1.713 albertel 10469: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
10470: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
10471: } elsif ($number =~ /^_/) {
10472: my $sub_condition;
10473: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
10474: &GDBM_READER(),0640)) {
10475: $sub_condition=$bighash{'conditions'.$number};
10476: untie(%bighash);
10477: }
10478: my $value = &docondval($sub_condition);
1.949 raeburn 10479: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 10480: return $value;
10481: }
1.620 albertel 10482: if ($env{'user.state.'.$env{'request.course.id'}}) {
10483: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 10484: } else {
10485: return 2;
10486: }
10487: }
10488:
1.713 albertel 10489: # get the collection of conditions for this resource
1.26 www 10490: sub condval {
10491: my $condidx=shift;
1.54 www 10492: my $allpathcond='';
1.713 albertel 10493: foreach my $cond (split(/\|/,$condidx)) {
10494: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
10495: $allpathcond.=
10496: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
10497: }
1.191 harris41 10498: }
1.54 www 10499: $allpathcond=~s/\|$//;
1.713 albertel 10500: return &docondval($allpathcond);
10501: }
10502:
10503: #evaluates an expression of conditions
10504: sub docondval {
10505: my ($allpathcond) = @_;
10506: my $result=0;
10507: if ($env{'request.course.id'}
10508: && defined($allpathcond)) {
10509: my $operand='|';
10510: my @stack;
10511: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
10512: if ($chunk eq '(') {
10513: push @stack,($operand,$result);
10514: } elsif ($chunk eq ')') {
10515: my $before=pop @stack;
10516: if (pop @stack eq '&') {
10517: $result=$result>$before?$before:$result;
10518: } else {
10519: $result=$result>$before?$result:$before;
10520: }
10521: } elsif (($chunk eq '&') || ($chunk eq '|')) {
10522: $operand=$chunk;
10523: } else {
10524: my $new=directcondval($chunk);
10525: if ($operand eq '&') {
10526: $result=$result>$new?$new:$result;
10527: } else {
10528: $result=$result>$new?$result:$new;
10529: }
10530: }
10531: }
1.26 www 10532: }
10533: return $result;
1.421 albertel 10534: }
10535:
10536: # ---------------------------------------------------- Devalidate courseresdata
10537:
10538: sub devalidatecourseresdata {
10539: my ($coursenum,$coursedomain)=@_;
10540: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 10541: &devalidate_cache_new('courseres',$hashid);
1.28 www 10542: }
10543:
1.763 www 10544:
1.200 www 10545: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 10546: #
10547: # Parameters:
10548: # $coursenum - Number of the course.
10549: # $coursedomain - Domain at which the course was created.
10550: # Returns:
10551: # A hash of the course parameters along (I think) with timestamps
10552: # and version info.
1.877 foxr 10553:
1.624 albertel 10554: sub get_courseresdata {
10555: my ($coursenum,$coursedomain)=@_;
1.200 www 10556: my $coursehom=&homeserver($coursenum,$coursedomain);
10557: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 10558: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 10559: my %dumpreply;
1.417 albertel 10560: unless (defined($cached)) {
1.624 albertel 10561: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 10562: $result=\%dumpreply;
1.251 albertel 10563: my ($tmp) = keys(%dumpreply);
10564: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 10565: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 10566: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
10567: return $tmp;
1.416 albertel 10568: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 10569: $result=undef;
1.599 albertel 10570: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 10571: }
10572: }
1.624 albertel 10573: return $result;
10574: }
10575:
1.633 albertel 10576: sub devalidateuserresdata {
10577: my ($uname,$udom)=@_;
10578: my $hashid="$udom:$uname";
10579: &devalidate_cache_new('userres',$hashid);
10580: }
10581:
1.624 albertel 10582: sub get_userresdata {
10583: my ($uname,$udom)=@_;
10584: #most student don\'t have any data set, check if there is some data
10585: if (&EXT_cache_status($udom,$uname)) { return undef; }
10586:
10587: my $hashid="$udom:$uname";
10588: my ($result,$cached)=&is_cached_new('userres',$hashid);
10589: if (!defined($cached)) {
10590: my %resourcedata=&dump('resourcedata',$udom,$uname);
10591: $result=\%resourcedata;
10592: &do_cache_new('userres',$hashid,$result,600);
10593: }
10594: my ($tmp)=keys(%$result);
10595: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
10596: return $result;
10597: }
10598: #error 2 occurs when the .db doesn't exist
10599: if ($tmp!~/error: 2 /) {
1.1172.2.71 raeburn 10600: if ((!defined($cached)) || ($tmp ne 'con_lost')) {
10601: &logthis("<font color=\"blue\">WARNING:".
10602: " Trying to get resource data for ".
10603: $uname." at ".$udom.": ".
10604: $tmp."</font>");
10605: }
1.624 albertel 10606: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 10607: #&EXT_cache_set($udom,$uname);
10608: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 10609: undef($tmp); # not really an error so don't send it back
1.624 albertel 10610: }
10611: return $tmp;
10612: }
1.879 foxr 10613: #----------------------------------------------- resdata - return resource data
10614: # Purpose:
10615: # Return resource data for either users or for a course.
10616: # Parameters:
10617: # $name - Course/user name.
10618: # $domain - Name of the domain the user/course is registered on.
10619: # $type - Type of thing $name is (must be 'course' or 'user'
10620: # @which - Array of names of resources desired.
10621: # Returns:
10622: # The value of the first reasource in @which that is found in the
10623: # resource hash.
10624: # Exceptional Conditions:
10625: # If the $type passed in is not valid (not the string 'course' or
10626: # 'user', an undefined reference is returned.
10627: # If none of the resources are found, an undef is returned
1.624 albertel 10628: sub resdata {
10629: my ($name,$domain,$type,@which)=@_;
10630: my $result;
10631: if ($type eq 'course') {
10632: $result=&get_courseresdata($name,$domain);
10633: } elsif ($type eq 'user') {
10634: $result=&get_userresdata($name,$domain);
10635: }
10636: if (!ref($result)) { return $result; }
1.251 albertel 10637: foreach my $item (@which) {
1.927 albertel 10638: if (defined($result->{$item->[0]})) {
10639: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 10640: }
1.250 albertel 10641: }
1.291 albertel 10642: return undef;
1.200 www 10643: }
10644:
1.1172.2.31 raeburn 10645: sub get_numsuppfiles {
10646: my ($cnum,$cdom,$ignorecache)=@_;
10647: my $hashid=$cnum.':'.$cdom;
10648: my ($suppcount,$cached);
10649: unless ($ignorecache) {
10650: ($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
10651: }
10652: unless (defined($cached)) {
10653: my $chome=&homeserver($cnum,$cdom);
10654: unless ($chome eq 'no_host') {
10655: ($suppcount,my $errors) = (0,0);
10656: my $suppmap = 'supplemental.sequence';
10657: ($suppcount,$errors) =
10658: &Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
10659: }
10660: &do_cache_new('suppcount',$hashid,$suppcount,600);
10661: }
10662: return $suppcount;
10663: }
10664:
1.379 matthew 10665: #
10666: # EXT resource caching routines
10667: #
10668:
10669: sub clear_EXT_cache_status {
1.383 albertel 10670: &delenv('cache.EXT.');
1.379 matthew 10671: }
10672:
10673: sub EXT_cache_status {
10674: my ($target_domain,$target_user) = @_;
1.383 albertel 10675: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 10676: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 10677: # We know already the user has no data
10678: return 1;
10679: } else {
10680: return 0;
10681: }
10682: }
10683:
10684: sub EXT_cache_set {
10685: my ($target_domain,$target_user) = @_;
1.383 albertel 10686: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 10687: #&appenv({$cachename => time});
1.379 matthew 10688: }
10689:
1.28 www 10690: # --------------------------------------------------------- Value of a Variable
1.58 www 10691: sub EXT {
1.715 albertel 10692:
1.1172.2.28 raeburn 10693: my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
1.68 www 10694: unless ($varname) { return ''; }
1.218 albertel 10695: #get real user name/domain, courseid and symb
10696: my $courseid;
1.359 albertel 10697: my $publicuser;
1.427 www 10698: if ($symbparm) {
10699: $symbparm=&get_symb_from_alias($symbparm);
10700: }
1.218 albertel 10701: if (!($uname && $udom)) {
1.790 albertel 10702: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 10703: if (!$symbparm) { $symbparm=$cursymb; }
10704: } else {
1.620 albertel 10705: $courseid=$env{'request.course.id'};
1.218 albertel 10706: }
1.48 www 10707: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
10708: my $rest;
1.320 albertel 10709: if (defined($therest[0])) {
1.48 www 10710: $rest=join('.',@therest);
10711: } else {
10712: $rest='';
10713: }
1.320 albertel 10714:
1.57 www 10715: my $qualifierrest=$qualifier;
10716: if ($rest) { $qualifierrest.='.'.$rest; }
10717: my $spacequalifierrest=$space;
10718: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 10719: if ($realm eq 'user') {
1.48 www 10720: # --------------------------------------------------------------- user.resource
10721: if ($space eq 'resource') {
1.651 albertel 10722: if ( (defined($Apache::lonhomework::parsing_a_problem)
10723: || defined($Apache::lonhomework::parsing_a_task))
10724: &&
1.744 albertel 10725: ($symbparm eq &symbread()) ) {
10726: # if we are in the middle of processing the resource the
10727: # get the value we are planning on committing
10728: if (defined($Apache::lonhomework::results{$qualifierrest})) {
10729: return $Apache::lonhomework::results{$qualifierrest};
10730: } else {
10731: return $Apache::lonhomework::history{$qualifierrest};
10732: }
1.335 albertel 10733: } else {
1.359 albertel 10734: my %restored;
1.620 albertel 10735: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 10736: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
10737: } else {
10738: %restored=&restore($symbparm,$courseid,$udom,$uname);
10739: }
1.335 albertel 10740: return $restored{$qualifierrest};
10741: }
1.48 www 10742: # ----------------------------------------------------------------- user.access
10743: } elsif ($space eq 'access') {
1.218 albertel 10744: # FIXME - not supporting calls for a specific user
1.48 www 10745: return &allowed($qualifier,$rest);
10746: # ------------------------------------------ user.preferences, user.environment
10747: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 10748: if (($uname eq $env{'user.name'}) &&
10749: ($udom eq $env{'user.domain'})) {
10750: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 10751: } else {
1.359 albertel 10752: my %returnhash;
10753: if (!$publicuser) {
10754: %returnhash=&userenvironment($udom,$uname,
10755: $qualifierrest);
10756: }
1.218 albertel 10757: return $returnhash{$qualifierrest};
10758: }
1.48 www 10759: # ----------------------------------------------------------------- user.course
10760: } elsif ($space eq 'course') {
1.218 albertel 10761: # FIXME - not supporting calls for a specific user
1.620 albertel 10762: return $env{join('.',('request.course',$qualifier))};
1.48 www 10763: # ------------------------------------------------------------------- user.role
10764: } elsif ($space eq 'role') {
1.218 albertel 10765: # FIXME - not supporting calls for a specific user
1.620 albertel 10766: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 10767: if ($qualifier eq 'value') {
10768: return $role;
10769: } elsif ($qualifier eq 'extent') {
10770: return $where;
10771: }
10772: # ----------------------------------------------------------------- user.domain
10773: } elsif ($space eq 'domain') {
1.218 albertel 10774: return $udom;
1.48 www 10775: # ------------------------------------------------------------------- user.name
10776: } elsif ($space eq 'name') {
1.218 albertel 10777: return $uname;
1.48 www 10778: # ---------------------------------------------------- Any other user namespace
1.29 www 10779: } else {
1.359 albertel 10780: my %reply;
10781: if (!$publicuser) {
10782: %reply=&get($space,[$qualifierrest],$udom,$uname);
10783: }
10784: return $reply{$qualifierrest};
1.48 www 10785: }
1.236 www 10786: } elsif ($realm eq 'query') {
10787: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 10788: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
10789: [$spacequalifierrest]);
1.620 albertel 10790: return $env{'form.'.$spacequalifierrest};
1.236 www 10791: } elsif ($realm eq 'request') {
1.48 www 10792: # ------------------------------------------------------------- request.browser
10793: if ($space eq 'browser') {
1.1145 bisitz 10794: return $env{'browser.'.$qualifier};
1.57 www 10795: # ------------------------------------------------------------ request.filename
10796: } else {
1.620 albertel 10797: return $env{'request.'.$spacequalifierrest};
1.29 www 10798: }
1.28 www 10799: } elsif ($realm eq 'course') {
1.48 www 10800: # ---------------------------------------------------------- course.description
1.620 albertel 10801: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 10802: } elsif ($realm eq 'resource') {
1.165 www 10803:
1.620 albertel 10804: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 10805: if (!$symbparm) { $symbparm=&symbread(); }
10806: }
1.693 albertel 10807:
1.1172.2.30 raeburn 10808: if ($qualifier eq '') {
10809: if ($space eq 'title') {
10810: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
10811: return &gettitle($symbparm);
10812: }
1.693 albertel 10813:
1.1172.2.30 raeburn 10814: if ($space eq 'map') {
10815: my ($map) = &decode_symb($symbparm);
10816: return &symbread($map);
10817: }
10818: if ($space eq 'maptitle') {
10819: my ($map) = &decode_symb($symbparm);
10820: return &gettitle($map);
10821: }
10822: if ($space eq 'filename') {
10823: if ($symbparm) {
10824: return &clutter((&decode_symb($symbparm))[2]);
10825: }
10826: return &hreflocation('',$env{'request.filename'});
1.905 albertel 10827: }
1.1172.2.30 raeburn 10828:
10829: if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
10830: if ($space eq 'visibleparts') {
10831: my $navmap = Apache::lonnavmaps::navmap->new();
10832: my $item;
10833: if (ref($navmap)) {
10834: my $res = $navmap->getBySymb($symbparm);
10835: my $parts = $res->parts();
10836: if (ref($parts) eq 'ARRAY') {
10837: $item = join(',',@{$parts});
10838: }
10839: undef($navmap);
10840: }
10841: return $item;
10842: }
10843: }
10844: }
1.693 albertel 10845:
10846: my ($section, $group, @groups);
1.593 albertel 10847: my ($courselevelm,$courselevel);
1.1172.2.28 raeburn 10848: if (($courseid eq '') && ($cid)) {
10849: $courseid = $cid;
10850: }
10851: if (($symbparm && $courseid) &&
10852: (($courseid eq $env{'request.course.id'}) || ($courseid eq $cid))) {
1.165 www 10853:
1.218 albertel 10854: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 10855:
1.60 www 10856: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 10857: my $symbp=$symbparm;
1.735 albertel 10858: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 10859:
10860: my $symbparm=$symbp.'.'.$spacequalifierrest;
10861: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
10862:
1.620 albertel 10863: if (($env{'user.name'} eq $uname) &&
10864: ($env{'user.domain'} eq $udom)) {
10865: $section=$env{'request.course.sec'};
1.733 raeburn 10866: @groups = split(/:/,$env{'request.course.groups'});
10867: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 10868: } else {
1.539 albertel 10869: if (! defined($usection)) {
1.551 albertel 10870: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 10871: } else {
10872: $section = $usection;
10873: }
1.733 raeburn 10874: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 10875: }
10876:
10877: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
10878: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
10879: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
10880:
1.593 albertel 10881: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 10882: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 10883: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 10884:
1.60 www 10885: # ----------------------------------------------------------- first, check user
1.624 albertel 10886:
10887: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 10888: ([$courselevelr,'resource'],
10889: [$courselevelm,'map' ],
10890: [$courselevel, 'course' ]));
1.931 albertel 10891: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 10892:
1.594 albertel 10893: # ------------------------------------------------ second, check some of course
1.684 raeburn 10894: my $coursereply;
1.691 raeburn 10895: if (@groups > 0) {
10896: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
10897: $mapparm,$spacequalifierrest);
1.927 albertel 10898: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 10899: }
1.96 www 10900:
1.684 raeburn 10901: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 10902: $env{'course.'.$courseid.'.domain'},
10903: 'course',
10904: ([$seclevelr, 'resource'],
10905: [$seclevelm, 'map' ],
10906: [$seclevel, 'course' ],
10907: [$courselevelr,'resource']));
10908: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 10909:
1.60 www 10910: # ------------------------------------------------------ third, check map parms
1.218 albertel 10911: my %parmhash=();
10912: my $thisparm='';
10913: if (tie(%parmhash,'GDBM_File',
1.620 albertel 10914: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 10915: &GDBM_READER(),0640)) {
1.218 albertel 10916: $thisparm=$parmhash{$symbparm};
10917: untie(%parmhash);
10918: }
1.927 albertel 10919: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 10920: }
1.594 albertel 10921: # ------------------------------------------ fourth, look in resource metadata
1.71 www 10922:
1.218 albertel 10923: $spacequalifierrest=~s/\./\_/;
1.282 albertel 10924: my $filename;
10925: if (!$symbparm) { $symbparm=&symbread(); }
10926: if ($symbparm) {
1.409 www 10927: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 10928: } else {
1.620 albertel 10929: $filename=$env{'request.filename'};
1.282 albertel 10930: }
10931: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 10932: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 10933: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 10934: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 10935:
1.927 albertel 10936: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 10937: if ($symbparm && defined($courseid) &&
1.620 albertel 10938: $courseid eq $env{'request.course.id'}) {
1.624 albertel 10939: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
10940: $env{'course.'.$courseid.'.domain'},
10941: 'course',
1.927 albertel 10942: ([$courselevelm,'map' ],
10943: [$courselevel, 'course']));
10944: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 10945: }
1.145 www 10946: # ------------------------------------------------------------------ Cascade up
1.218 albertel 10947: unless ($space eq '0') {
1.336 albertel 10948: my @parts=split(/_/,$space);
10949: my $id=pop(@parts);
10950: my $part=join('_',@parts);
10951: if ($part eq '') { $part='0'; }
1.927 albertel 10952: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 10953: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 10954: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 10955: }
1.395 albertel 10956: if ($recurse) { return undef; }
10957: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 10958: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 10959: # ---------------------------------------------------- Any other user namespace
10960: } elsif ($realm eq 'environment') {
10961: # ----------------------------------------------------------------- environment
1.620 albertel 10962: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
10963: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 10964: } else {
1.770 albertel 10965: if ($uname eq 'anonymous' && $udom eq '') {
10966: return '';
10967: }
1.219 albertel 10968: my %returnhash=&userenvironment($udom,$uname,
10969: $spacequalifierrest);
10970: return $returnhash{$spacequalifierrest};
10971: }
1.28 www 10972: } elsif ($realm eq 'system') {
1.48 www 10973: # ----------------------------------------------------------------- system.time
10974: if ($space eq 'time') {
10975: return time;
10976: }
1.696 albertel 10977: } elsif ($realm eq 'server') {
10978: # ----------------------------------------------------------------- system.time
10979: if ($space eq 'name') {
10980: return $ENV{'SERVER_NAME'};
10981: }
1.28 www 10982: }
1.48 www 10983: return '';
1.61 www 10984: }
10985:
1.927 albertel 10986: sub get_reply {
10987: my ($reply_value) = @_;
1.940 raeburn 10988: if (ref($reply_value) eq 'ARRAY') {
10989: if (wantarray) {
10990: return @$reply_value;
10991: }
10992: return $reply_value->[0];
10993: } else {
10994: return $reply_value;
1.927 albertel 10995: }
10996: }
10997:
1.691 raeburn 10998: sub check_group_parms {
10999: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
11000: my @groupitems = ();
11001: my $resultitem;
1.927 albertel 11002: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 11003: foreach my $group (@{$groups}) {
11004: foreach my $level (@levels) {
1.927 albertel 11005: my $item = $courseid.'.['.$group.'].'.$level->[0];
11006: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 11007: }
11008: }
11009: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
11010: $env{'course.'.$courseid.'.domain'},
11011: 'course',@groupitems);
11012: return $coursereply;
11013: }
11014:
11015: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 11016: my ($courseid,@groups) = @_;
11017: @groups = sort(@groups);
1.691 raeburn 11018: return @groups;
11019: }
11020:
1.395 albertel 11021: sub packages_tab_default {
11022: my ($uri,$varname)=@_;
11023: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 11024:
11025: my (@extension,@specifics,$do_default);
11026: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 11027: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 11028: if ($pack_type eq 'default') {
11029: $do_default=1;
11030: } elsif ($pack_type eq 'extension') {
11031: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 11032: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 11033: # only look at packages defaults for packages that this id is
1.738 albertel 11034: push(@specifics,[$package,$pack_type,$pack_part]);
11035: }
11036: }
11037: # first look for a package that matches the requested part id
11038: foreach my $package (@specifics) {
11039: my (undef,$pack_type,$pack_part)=@{$package};
11040: next if ($pack_part ne $part);
11041: if (defined($packagetab{"$pack_type&$name&default"})) {
11042: return $packagetab{"$pack_type&$name&default"};
11043: }
11044: }
11045: # look for any possible matching non extension_ package
11046: foreach my $package (@specifics) {
11047: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 11048: if (defined($packagetab{"$pack_type&$name&default"})) {
11049: return $packagetab{"$pack_type&$name&default"};
11050: }
1.585 albertel 11051: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 11052: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
11053: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 11054: }
11055: }
1.738 albertel 11056: # look for any posible extension_ match
11057: foreach my $package (@extension) {
11058: my ($package,$pack_type)=@{$package};
11059: if (defined($packagetab{"$pack_type&$name&default"})) {
11060: return $packagetab{"$pack_type&$name&default"};
11061: }
11062: if (defined($packagetab{$package."&$name&default"})) {
11063: return $packagetab{$package."&$name&default"};
11064: }
11065: }
11066: # look for a global default setting
11067: if ($do_default && defined($packagetab{"default&$name&default"})) {
11068: return $packagetab{"default&$name&default"};
11069: }
1.395 albertel 11070: return undef;
11071: }
11072:
1.334 albertel 11073: sub add_prefix_and_part {
11074: my ($prefix,$part)=@_;
11075: my $keyroot;
11076: if (defined($prefix) && $prefix !~ /^__/) {
11077: # prefix that has a part already
11078: $keyroot=$prefix;
11079: } elsif (defined($prefix)) {
11080: # prefix that is missing a part
11081: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
11082: } else {
11083: # no prefix at all
11084: if (defined($part)) { $keyroot='_'.$part; }
11085: }
11086: return $keyroot;
11087: }
11088:
1.71 www 11089: # ---------------------------------------------------------------- Get metadata
11090:
1.599 albertel 11091: my %metaentry;
1.1070 www 11092: my %importedpartids;
1.1172.2.99 raeburn 11093: my %importedrespids;
1.71 www 11094: sub metadata {
1.176 www 11095: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 11096: $uri=&declutter($uri);
1.288 albertel 11097: # if it is a non metadata possible uri return quickly
1.529 albertel 11098: if (($uri eq '') ||
11099: (($uri =~ m|^/*adm/|) &&
1.1172.2.20 raeburn 11100: ($uri !~ m|^adm/includes|) && ($uri !~ m{/(smppg|bulletinboard)$})) ||
1.1108 raeburn 11101: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
1.924 albertel 11102: return undef;
11103: }
1.1172.2.49 raeburn 11104: if (($uri =~ /^priv/ || $uri=~m{^home/httpd/html/priv})
1.924 albertel 11105: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 11106: return undef;
1.288 albertel 11107: }
1.73 www 11108: my $filename=$uri;
11109: $uri=~s/\.meta$//;
1.172 www 11110: #
11111: # Is the metadata already cached?
1.177 www 11112: # Look at timestamp of caching
1.172 www 11113: # Everything is cached by the main uri, libraries are never directly cached
11114: #
1.428 albertel 11115: if (!defined($liburi)) {
1.599 albertel 11116: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 11117: if (defined($cached)) { return $result->{':'.$what}; }
11118: }
11119: {
1.1069 www 11120: # Imported parts would go here
1.1172.2.99 raeburn 11121: my @origfiletagids=();
1.1069 www 11122: my $importedparts=0;
1.1172.2.99 raeburn 11123:
11124: # Imported responseids would go here
11125: my $importedresponses=0;
1.172 www 11126: #
11127: # Is this a recursive call for a library?
11128: #
1.599 albertel 11129: # if (! exists($metacache{$uri})) {
11130: # $metacache{$uri}={};
11131: # }
1.924 albertel 11132: my $cachetime = 60*60;
1.171 www 11133: if ($liburi) {
11134: $liburi=&declutter($liburi);
11135: $filename=$liburi;
1.401 bowersj2 11136: } else {
1.599 albertel 11137: &devalidate_cache_new('meta',$uri);
11138: undef(%metaentry);
1.401 bowersj2 11139: }
1.140 www 11140: my %metathesekeys=();
1.73 www 11141: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 11142: my $metastring;
1.1140 www 11143: if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
1.929 albertel 11144: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 11145: $metastring =
1.929 albertel 11146: &Apache::lonnet::ssi_body($which,
1.924 albertel 11147: ('grade_target' => 'meta'));
11148: $cachetime = 1; # only want this cached in the child not long term
1.1108 raeburn 11149: } elsif (($uri !~ m -^(editupload)/-) &&
11150: ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
1.543 albertel 11151: my $file=&filelocation('',&clutter($filename));
1.599 albertel 11152: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 11153: $metastring=&getfile($file);
1.489 albertel 11154: }
1.208 albertel 11155: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 11156: my $token;
1.140 www 11157: undef %metathesekeys;
1.71 www 11158: while ($token=$parser->get_token) {
1.339 albertel 11159: if ($token->[0] eq 'S') {
11160: if (defined($token->[2]->{'package'})) {
1.172 www 11161: #
11162: # This is a package - get package info
11163: #
1.339 albertel 11164: my $package=$token->[2]->{'package'};
11165: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11166: if (defined($token->[2]->{'id'})) {
11167: $keyroot.='_'.$token->[2]->{'id'};
11168: }
1.599 albertel 11169: if ($metaentry{':packages'}) {
11170: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 11171: } else {
1.599 albertel 11172: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 11173: }
1.736 albertel 11174: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 11175: my $part=$keyroot;
11176: $part=~s/^\_//;
1.736 albertel 11177: if ($pack_entry=~/^\Q$package\E\&/ ||
11178: $pack_entry=~/^\Q$package\E_0\&/) {
11179: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 11180: # ignore package.tab specified default values
11181: # here &package_tab_default() will fetch those
11182: if ($subp eq 'default') { next; }
1.736 albertel 11183: my $value=$packagetab{$pack_entry};
1.432 albertel 11184: my $unikey;
11185: if ($pack =~ /_0$/) {
11186: $unikey='parameter_0_'.$name;
11187: $part=0;
11188: } else {
11189: $unikey='parameter'.$keyroot.'_'.$name;
11190: }
1.339 albertel 11191: if ($subp eq 'display') {
11192: $value.=' [Part: '.$part.']';
11193: }
1.599 albertel 11194: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 11195: $metathesekeys{$unikey}=1;
1.599 albertel 11196: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
11197: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 11198: }
1.599 albertel 11199: if (defined($metaentry{':'.$unikey.'.default'})) {
11200: $metaentry{':'.$unikey}=
11201: $metaentry{':'.$unikey.'.default'};
1.356 albertel 11202: }
1.339 albertel 11203: }
11204: }
11205: } else {
1.172 www 11206: #
11207: # This is not a package - some other kind of start tag
1.339 albertel 11208: #
11209: my $entry=$token->[1];
1.1068 www 11210: my $unikey='';
1.175 www 11211:
1.339 albertel 11212: if ($entry eq 'import') {
1.175 www 11213: #
11214: # Importing a library here
1.339 albertel 11215: #
1.1067 www 11216: my $location=$parser->get_text('/import');
11217: my $dir=$filename;
11218: $dir=~s|[^/]*$||;
11219: $location=&filelocation($dir,$location);
1.1172.2.99 raeburn 11220:
11221: my $importid=$token->[2]->{'id'};
1.1068 www 11222: my $importmode=$token->[2]->{'importmode'};
1.1172.2.99 raeburn 11223: #
11224: # Check metadata for imported file to
11225: # see if it contained response items
11226: #
11227: my %currmetaentry = %metaentry;
11228: my $libresponseorder = &metadata($location,'responseorder');
11229: my $origfile;
11230: if ($libresponseorder ne '') {
11231: if ($#origfiletagids<0) {
11232: undef(%importedrespids);
11233: undef(%importedpartids);
11234: }
11235: @{$importedrespids{$importid}} = split(/\s*,\s*/,$libresponseorder);
11236: if (@{$importedrespids{$importid}} > 0) {
11237: $importedresponses = 1;
11238: # We need to get the original file and the imported file to get the response order correct
11239: # Load and inspect original file
11240: if ($#origfiletagids<0) {
11241: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
11242: $origfile=&getfile($origfilelocation);
11243: @origfiletagids=($origfile=~/<((?:\w+)response|import|part)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11244: }
11245: }
11246: }
11247: # Do not overwrite contents of %metaentry hash for resource itself with
11248: # hash populated for imported library file
11249: %metaentry = %currmetaentry;
11250: undef(%currmetaentry);
1.1068 www 11251: if ($importmode eq 'problem') {
1.1069 www 11252: # Import as problem/response
1.1068 www 11253: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11254: } elsif ($importmode eq 'part') {
11255: # Import as part(s)
1.1069 www 11256: $importedparts=1;
11257: # We need to get the original file and the imported file to get the part order correct
11258: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
1.1172.2.99 raeburn 11259: # Load and inspect original file if we didn't do that already
11260: if ($#origfiletagids<0) {
11261: undef(%importedrespids);
11262: undef(%importedpartids);
11263: if ($origfile eq '') {
11264: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
11265: $origfile=&getfile($origfilelocation);
11266: @origfiletagids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11267: }
1.1070 www 11268: }
11269:
1.1069 www 11270: # Load and inspect imported file
11271: my $impfile=&getfile($location);
11272: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
11273: if ($#impfilepartids>=0) {
11274: # This problem had parts
1.1070 www 11275: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 11276: } else {
11277: # Importing by turning a single problem into a problem part
11278: # It gets the import-tags ID as part-ID
11279: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 11280: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 11281: }
1.1068 www 11282: } else {
11283: # Normal import
11284: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
11285: if (defined($token->[2]->{'id'})) {
11286: $unikey.='_'.$token->[2]->{'id'};
11287: }
1.1067 www 11288: }
11289:
1.339 albertel 11290: if ($depthcount<20) {
1.736 albertel 11291: my $metadata =
11292: &metadata($uri,'keys', $location,$unikey,
11293: $depthcount+1);
11294: foreach my $meta (split(',',$metadata)) {
11295: $metaentry{':'.$meta}=$metaentry{':'.$meta};
11296: $metathesekeys{$meta}=1;
1.339 albertel 11297: }
1.1068 www 11298:
11299: }
1.1067 www 11300: } else {
11301: #
11302: # Not importing, some other kind of non-package, non-library start tag
11303: #
11304: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
11305: if (defined($token->[2]->{'id'})) {
11306: $unikey.='_'.$token->[2]->{'id'};
11307: }
1.339 albertel 11308: if (defined($token->[2]->{'name'})) {
11309: $unikey.='_'.$token->[2]->{'name'};
11310: }
11311: $metathesekeys{$unikey}=1;
1.736 albertel 11312: foreach my $param (@{$token->[3]}) {
11313: $metaentry{':'.$unikey.'.'.$param} =
11314: $token->[2]->{$param};
1.339 albertel 11315: }
11316: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 11317: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 11318: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
11319: # only ws inside the tag, and not in default, so use default
11320: # as value
1.599 albertel 11321: $metaentry{':'.$unikey}=$default;
1.908 albertel 11322: } elsif ( $internaltext =~ /\S/ ) {
11323: # something interesting inside the tag
11324: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 11325: } else {
1.908 albertel 11326: # no interesting values, don't set a default
1.339 albertel 11327: }
1.172 www 11328: # end of not-a-package not-a-library import
1.339 albertel 11329: }
1.172 www 11330: # end of not-a-package start tag
1.339 albertel 11331: }
1.172 www 11332: # the next is the end of "start tag"
1.339 albertel 11333: }
11334: }
1.483 albertel 11335: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 11336: $extension = lc($extension);
11337: if ($extension eq 'htm') { $extension='html'; }
11338:
1.737 albertel 11339: foreach my $key (keys(%packagetab)) {
1.483 albertel 11340: #no specific packages #how's our extension
11341: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 11342: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 11343: \%metathesekeys);
11344: }
1.883 albertel 11345:
11346: if (!exists($metaentry{':packages'})
11347: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 11348: foreach my $key (keys(%packagetab)) {
1.483 albertel 11349: #no specific packages well let's get default then
11350: if ($key!~/^default&/) { next; }
1.488 albertel 11351: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 11352: \%metathesekeys);
11353: }
11354: }
1.338 www 11355: # are there custom rights to evaluate
1.599 albertel 11356: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 11357:
1.338 www 11358: #
11359: # Importing a rights file here
1.339 albertel 11360: #
11361: unless ($depthcount) {
1.599 albertel 11362: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 11363: my $dir=$filename;
11364: $dir=~s|[^/]*$||;
11365: $location=&filelocation($dir,$location);
1.736 albertel 11366: my $rights_metadata =
11367: &metadata($uri,'keys',$location,'_rights',
11368: $depthcount+1);
11369: foreach my $rights (split(',',$rights_metadata)) {
11370: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
11371: $metathesekeys{$rights}=1;
1.339 albertel 11372: }
11373: }
11374: }
1.737 albertel 11375: # uniqifiy package listing
11376: my %seen;
11377: my @uniq_packages =
11378: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
11379: $metaentry{':packages'} = join(',',@uniq_packages);
11380:
1.1172.2.99 raeburn 11381: if (($importedresponses) || ($importedparts)) {
11382: if ($importedparts) {
1.1070 www 11383: # We had imported parts and need to rebuild partorder
1.1172.2.99 raeburn 11384: $metaentry{':partorder'}='';
11385: $metathesekeys{'partorder'}=1;
11386: }
11387: if ($importedresponses) {
11388: # We had imported responses and need to rebuild responseorder
11389: $metaentry{':responseorder'}='';
11390: $metathesekeys{'responseorder'}=1;
11391: }
11392: for (my $index=0;$index<$#origfiletagids;$index+=2) {
11393: my $origid = $origfiletagids[$index+1];
11394: if ($origfiletagids[$index] eq 'part') {
11395: # Original part, part of the problem
11396: if ($importedparts) {
11397: $metaentry{':partorder'}.=','.$origid;
11398: }
11399: } elsif ($origfiletagids[$index] eq 'import') {
11400: if ($importedparts) {
11401: # We have imported parts at this position
11402: $metaentry{':partorder'}.=','.$importedpartids{$origid};
11403: }
11404: if ($importedresponses) {
11405: # We have imported responses at this position
11406: if (ref($importedrespids{$origid}) eq 'ARRAY') {
11407: $metaentry{':responseorder'}.=','.join(',',map { $origid.'_'.$_ } @{$importedrespids{$origid}});
11408: }
11409: }
11410: } else {
11411: # Original response item, part of the problem
11412: if ($importedresponses) {
11413: $metaentry{':responseorder'}.=','.$origid;
11414: }
11415: }
11416: }
11417: if ($importedparts) {
11418: $metaentry{':partorder'}=~s/^\,//;
11419: }
11420: if ($importedresponses) {
11421: $metaentry{':responseorder'}=~s/^\,//;
11422: }
1.1070 www 11423: }
11424:
1.737 albertel 11425: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 11426: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
1.1172.2.58 raeburn 11427: $metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
1.924 albertel 11428: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 11429: # this is the end of "was not already recently cached
1.71 www 11430: }
1.599 albertel 11431: return $metaentry{':'.$what};
1.261 albertel 11432: }
11433:
1.488 albertel 11434: sub metadata_create_package_def {
1.483 albertel 11435: my ($uri,$key,$package,$metathesekeys)=@_;
11436: my ($pack,$name,$subp)=split(/\&/,$key);
11437: if ($subp eq 'default') { next; }
11438:
1.599 albertel 11439: if (defined($metaentry{':packages'})) {
11440: $metaentry{':packages'}.=','.$package;
1.483 albertel 11441: } else {
1.599 albertel 11442: $metaentry{':packages'}=$package;
1.483 albertel 11443: }
11444: my $value=$packagetab{$key};
11445: my $unikey;
11446: $unikey='parameter_0_'.$name;
1.599 albertel 11447: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 11448: $$metathesekeys{$unikey}=1;
1.599 albertel 11449: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
11450: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 11451: }
1.599 albertel 11452: if (defined($metaentry{':'.$unikey.'.default'})) {
11453: $metaentry{':'.$unikey}=
11454: $metaentry{':'.$unikey.'.default'};
1.483 albertel 11455: }
11456: }
11457:
1.261 albertel 11458: sub metadata_generate_part0 {
11459: my ($metadata,$metacache,$uri) = @_;
11460: my %allnames;
1.737 albertel 11461: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 11462: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 11463: my $part=$$metacache{':'.$metakey.'.part'};
11464: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 11465: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 11466: $allnames{$name}=$part;
11467: }
11468: }
11469: }
11470: foreach my $name (keys(%allnames)) {
11471: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 11472: my $key=":parameter_0_$name";
1.261 albertel 11473: $$metacache{"$key.part"}='0';
11474: $$metacache{"$key.name"}=$name;
1.428 albertel 11475: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 11476: $allnames{$name}.'_'.$name.
11477: '.type'};
1.428 albertel 11478: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 11479: '.display'};
1.644 www 11480: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 11481: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 11482: $$metacache{"$key.display"}=$olddis;
11483: }
1.71 www 11484: }
11485:
1.764 albertel 11486: # ------------------------------------------------------ Devalidate title cache
11487:
11488: sub devalidate_title_cache {
11489: my ($url)=@_;
11490: if (!$env{'request.course.id'}) { return; }
11491: my $symb=&symbread($url);
11492: if (!$symb) { return; }
11493: my $key=$env{'request.course.id'}."\0".$symb;
11494: &devalidate_cache_new('title',$key);
11495: }
11496:
1.1014 droeschl 11497: # ------------------------------------------------- Get the title of a course
11498:
11499: sub current_course_title {
11500: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
11501: }
1.301 www 11502: # ------------------------------------------------- Get the title of a resource
11503:
11504: sub gettitle {
11505: my $urlsymb=shift;
11506: my $symb=&symbread($urlsymb);
1.534 albertel 11507: if ($symb) {
1.620 albertel 11508: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 11509: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 11510: if (defined($cached)) {
11511: return $result;
11512: }
1.534 albertel 11513: my ($map,$resid,$url)=&decode_symb($symb);
11514: my $title='';
1.907 albertel 11515: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
11516: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
11517: } else {
11518: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
11519: &GDBM_READER(),0640)) {
11520: my $mapid=$bighash{'map_pc_'.&clutter($map)};
11521: $title=$bighash{'title_'.$mapid.'.'.$resid};
11522: untie(%bighash);
11523: }
1.534 albertel 11524: }
11525: $title=~s/\&colon\;/\:/gs;
11526: if ($title) {
1.1159 www 11527: # Remember both $symb and $title for dynamic metadata
11528: $accesshash{$symb.'___crstitle'}=$title;
1.1161 www 11529: $accesshash{&declutter($map).'___'.&declutter($url).'___usage'}=time;
1.1159 www 11530: # Cache this title and then return it
1.599 albertel 11531: return &do_cache_new('title',$key,$title,600);
1.534 albertel 11532: }
11533: $urlsymb=$url;
11534: }
11535: my $title=&metadata($urlsymb,'title');
11536: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
11537: return $title;
1.301 www 11538: }
1.613 albertel 11539:
1.614 albertel 11540: sub get_slot {
11541: my ($which,$cnum,$cdom)=@_;
11542: if (!$cnum || !$cdom) {
1.790 albertel 11543: (undef,my $courseid)=&whichuser();
1.620 albertel 11544: $cdom=$env{'course.'.$courseid.'.domain'};
11545: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 11546: }
1.703 albertel 11547: my $key=join("\0",'slots',$cdom,$cnum,$which);
11548: my %slotinfo;
11549: if (exists($remembered{$key})) {
11550: $slotinfo{$which} = $remembered{$key};
11551: } else {
11552: %slotinfo=&get('slots',[$which],$cdom,$cnum);
11553: &Apache::lonhomework::showhash(%slotinfo);
11554: my ($tmp)=keys(%slotinfo);
11555: if ($tmp=~/^error:/) { return (); }
11556: $remembered{$key} = $slotinfo{$which};
11557: }
1.616 albertel 11558: if (ref($slotinfo{$which}) eq 'HASH') {
11559: return %{$slotinfo{$which}};
11560: }
11561: return $slotinfo{$which};
1.614 albertel 11562: }
1.1150 raeburn 11563:
11564: sub get_reservable_slots {
11565: my ($cnum,$cdom,$uname,$udom) = @_;
11566: my $now = time;
11567: my $reservable_info;
11568: my $key=join("\0",'reservableslots',$cdom,$cnum,$uname,$udom);
11569: if (exists($remembered{$key})) {
11570: $reservable_info = $remembered{$key};
11571: } else {
11572: my %resv;
11573: ($resv{'now_order'},$resv{'now'},$resv{'future_order'},$resv{'future'}) =
11574: &Apache::loncommon::get_future_slots($cnum,$cdom,$now);
11575: $reservable_info = \%resv;
11576: $remembered{$key} = $reservable_info;
11577: }
11578: return $reservable_info;
11579: }
11580:
11581: sub get_course_slots {
11582: my ($cnum,$cdom) = @_;
11583: my $hashid=$cnum.':'.$cdom;
11584: my ($result,$cached) = &Apache::lonnet::is_cached_new('allslots',$hashid);
11585: if (defined($cached)) {
11586: if (ref($result) eq 'HASH') {
11587: return %{$result};
11588: }
11589: } else {
11590: my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
11591: my ($tmp) = keys(%slots);
11592: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.1172.2.23 raeburn 11593: &do_cache_new('allslots',$hashid,\%slots,600);
1.1150 raeburn 11594: return %slots;
11595: }
11596: }
11597: return;
11598: }
11599:
11600: sub devalidate_slots_cache {
11601: my ($cnum,$cdom)=@_;
11602: my $hashid=$cnum.':'.$cdom;
11603: &devalidate_cache_new('allslots',$hashid);
11604: }
11605:
1.1172.2.8 raeburn 11606: sub get_coursechange {
11607: my ($cdom,$cnum) = @_;
11608: if ($cdom eq '' || $cnum eq '') {
11609: return unless ($env{'request.course.id'});
11610: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
11611: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
11612: }
11613: my $hashid=$cdom.'_'.$cnum;
11614: my ($change,$cached)=&is_cached_new('crschange',$hashid);
11615: if ((defined($cached)) && ($change ne '')) {
11616: return $change;
11617: } else {
11618: my %crshash;
11619: %crshash = &get('environment',['internal.contentchange'],$cdom,$cnum);
11620: if ($crshash{'internal.contentchange'} eq '') {
11621: $change = $env{'course.'.$cdom.'_'.$cnum.'.internal.created'};
11622: if ($change eq '') {
11623: %crshash = &get('environment',['internal.created'],$cdom,$cnum);
11624: $change = $crshash{'internal.created'};
11625: }
11626: } else {
11627: $change = $crshash{'internal.contentchange'};
11628: }
11629: my $cachetime = 600;
11630: &do_cache_new('crschange',$hashid,$change,$cachetime);
11631: }
11632: return $change;
11633: }
11634:
11635: sub devalidate_coursechange_cache {
11636: my ($cnum,$cdom)=@_;
11637: my $hashid=$cnum.':'.$cdom;
11638: &devalidate_cache_new('crschange',$hashid);
11639: }
11640:
1.31 www 11641: # ------------------------------------------------- Update symbolic store links
11642:
11643: sub symblist {
11644: my ($mapname,%newhash)=@_;
1.438 www 11645: $mapname=&deversion(&declutter($mapname));
1.31 www 11646: my %hash;
1.620 albertel 11647: if (($env{'request.course.fn'}) && (%newhash)) {
11648: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 11649: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 11650: foreach my $url (keys(%newhash)) {
1.711 albertel 11651: next if ($url eq 'last_known'
11652: && $env{'form.no_update_last_known'});
11653: $hash{declutter($url)}=&encode_symb($mapname,
11654: $newhash{$url}->[1],
11655: $newhash{$url}->[0]);
1.191 harris41 11656: }
1.31 www 11657: if (untie(%hash)) {
11658: return 'ok';
11659: }
11660: }
11661: }
11662: return 'error';
1.212 www 11663: }
11664:
11665: # --------------------------------------------------------------- Verify a symb
11666:
11667: sub symbverify {
1.1172.2.11 raeburn 11668: my ($symb,$thisurl,$encstate)=@_;
1.510 www 11669: my $thisfn=$thisurl;
1.439 www 11670: $thisfn=&declutter($thisfn);
1.215 www 11671: # direct jump to resource in page or to a sequence - will construct own symbs
11672: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
11673: # check URL part
1.409 www 11674: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 11675:
1.431 www 11676: unless ($url eq $thisfn) { return 0; }
1.213 www 11677:
1.216 www 11678: $symb=&symbclean($symb);
1.510 www 11679: $thisurl=&deversion($thisurl);
1.439 www 11680: $thisfn=&deversion($thisfn);
1.213 www 11681:
11682: my %bighash;
11683: my $okay=0;
1.431 www 11684:
1.620 albertel 11685: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 11686: &GDBM_READER(),0640)) {
1.1172.2.13 raeburn 11687: my $noclutter;
1.1032 raeburn 11688: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
11689: $thisurl =~ s/\?.+$//;
1.1172.2.13 raeburn 11690: if ($map =~ m{^uploaded/.+\.page$}) {
11691: $thisurl =~ s{^(/adm/wrapper|)/ext/}{http://};
11692: $thisurl =~ s{^\Qhttp://https://\E}{https://};
11693: $noclutter = 1;
11694: }
11695: }
11696: my $ids;
11697: if ($noclutter) {
11698: $ids=$bighash{'ids_'.$thisurl};
11699: } else {
11700: $ids=$bighash{'ids_'.&clutter($thisurl)};
1.1032 raeburn 11701: }
1.1102 raeburn 11702: unless ($ids) {
1.1172.2.13 raeburn 11703: my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
1.1102 raeburn 11704: $ids=$bighash{$idkey};
1.216 www 11705: }
11706: if ($ids) {
11707: # ------------------------------------------------------------------- Has ID(s)
1.1172.2.13 raeburn 11708: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
11709: $symb =~ s/\?.+$//;
11710: }
1.800 albertel 11711: foreach my $id (split(/\,/,$ids)) {
11712: my ($mapid,$resid)=split(/\./,$id);
1.216 www 11713: if (
11714: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
1.1172.2.13 raeburn 11715: eq $symb) {
1.1172.2.11 raeburn 11716: if (ref($encstate)) {
11717: $$encstate = $bighash{'encrypted_'.$id};
11718: }
1.1172.2.13 raeburn 11719: if (($env{'request.role.adv'}) ||
11720: ($bighash{'encrypted_'.$id} eq $env{'request.enc'}) ||
1.1101 raeburn 11721: ($thisurl eq '/adm/navmaps')) {
1.1172.2.13 raeburn 11722: $okay=1;
11723: last;
11724: }
11725: }
11726: }
1.216 www 11727: }
1.213 www 11728: untie(%bighash);
11729: }
11730: return $okay;
1.31 www 11731: }
11732:
1.210 www 11733: # --------------------------------------------------------------- Clean-up symb
11734:
11735: sub symbclean {
11736: my $symb=shift;
1.568 albertel 11737: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 11738: # remove version from map
11739: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 11740:
1.210 www 11741: # remove version from URL
11742: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 11743:
1.507 www 11744: # remove wrapper
11745:
1.510 www 11746: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 11747: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 11748: return $symb;
1.409 www 11749: }
11750:
11751: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 11752:
11753: sub encode_symb {
11754: my ($map,$resid,$url)=@_;
11755: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
11756: }
1.409 www 11757:
11758: sub decode_symb {
1.568 albertel 11759: my $symb=shift;
11760: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
11761: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 11762: return (&fixversion($map),$resid,&fixversion($url));
11763: }
11764:
11765: sub fixversion {
11766: my $fn=shift;
1.609 banghart 11767: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 11768: my %bighash;
11769: my $uri=&clutter($fn);
1.620 albertel 11770: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 11771: # is this cached?
1.599 albertel 11772: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 11773: if (defined($cached)) { return $result; }
11774: # unfortunately not cached, or expired
1.620 albertel 11775: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 11776: &GDBM_READER(),0640)) {
11777: if ($bighash{'version_'.$uri}) {
11778: my $version=$bighash{'version_'.$uri};
1.444 www 11779: unless (($version eq 'mostrecent') ||
11780: ($version==&getversion($uri))) {
1.440 www 11781: $uri=~s/\.(\w+)$/\.$version\.$1/;
11782: }
11783: }
11784: untie %bighash;
1.413 www 11785: }
1.599 albertel 11786: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 11787: }
11788:
11789: sub deversion {
11790: my $url=shift;
11791: $url=~s/\.\d+\.(\w+)$/\.$1/;
11792: return $url;
1.210 www 11793: }
11794:
1.31 www 11795: # ------------------------------------------------------ Return symb list entry
11796:
11797: sub symbread {
1.1172.2.66 raeburn 11798: my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_;
1.1172.2.54 raeburn 11799: my $cache_str='request.symbread.cached.'.$thisfn;
1.1172.2.66 raeburn 11800: if (defined($env{$cache_str})) {
11801: if ($ignorecachednull) {
11802: return $env{$cache_str} unless ($env{$cache_str} eq '');
11803: } else {
11804: return $env{$cache_str};
11805: }
11806: }
1.242 www 11807: # no filename provided? try from environment
1.1172.2.54 raeburn 11808: unless ($thisfn) {
1.620 albertel 11809: if ($env{'request.symb'}) {
1.1172.2.13 raeburn 11810: return $env{$cache_str}=&symbclean($env{'request.symb'});
11811: }
11812: $thisfn=$env{'request.filename'};
1.44 www 11813: }
1.569 albertel 11814: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 11815: # is that filename actually a symb? Verify, clean, and return
11816: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 11817: if (&symbverify($thisfn,$1)) {
1.620 albertel 11818: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 11819: }
1.242 www 11820: }
1.44 www 11821: $thisfn=declutter($thisfn);
1.31 www 11822: my %hash;
1.37 www 11823: my %bighash;
11824: my $syval='';
1.620 albertel 11825: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 11826: my $targetfn = $thisfn;
1.609 banghart 11827: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 11828: $targetfn = 'adm/wrapper/'.$thisfn;
11829: }
1.687 albertel 11830: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
11831: $targetfn=$1;
11832: }
1.620 albertel 11833: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 11834: &GDBM_READER(),0640)) {
1.481 raeburn 11835: $syval=$hash{$targetfn};
1.37 www 11836: untie(%hash);
11837: }
11838: # ---------------------------------------------------------- There was an entry
11839: if ($syval) {
1.601 albertel 11840: #unless ($syval=~/\_\d+$/) {
1.620 albertel 11841: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 11842: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 11843: #return $env{$cache_str}='';
1.601 albertel 11844: #}
11845: #$syval.=$1;
11846: #}
1.37 www 11847: } else {
11848: # ------------------------------------------------------- Was not in symb table
1.620 albertel 11849: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 11850: &GDBM_READER(),0640)) {
1.37 www 11851: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 11852: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 11853: unless ($ids) {
11854: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 11855: }
11856: unless ($ids) {
11857: # alias?
11858: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 11859: }
1.37 www 11860: if ($ids) {
11861: # ------------------------------------------------------------------- Has ID(s)
11862: my @possibilities=split(/\,/,$ids);
1.39 www 11863: if ($#possibilities==0) {
11864: # ----------------------------------------------- There is only one possibility
1.37 www 11865: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 11866: $syval=&encode_symb($bighash{'map_id_'.$mapid},
11867: $resid,$thisfn);
1.1172.2.66 raeburn 11868: if (ref($possibles) eq 'HASH') {
11869: $possibles->{$syval} = 1;
11870: }
11871: if ($checkforblock) {
11872: my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids});
11873: if (@blockers) {
11874: $syval = '';
11875: return;
11876: }
11877: }
11878: } elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
1.39 www 11879: # ------------------------------------------ There is more than one possibility
11880: my $realpossible=0;
1.800 albertel 11881: foreach my $id (@possibilities) {
11882: my $file=$bighash{'src_'.$id};
1.1172.2.66 raeburn 11883: my $canaccess;
11884: if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) {
11885: $canaccess = 1;
11886: } else {
11887: $canaccess = &allowed('bre',$file);
11888: }
11889: if ($canaccess) {
11890: my ($mapid,$resid)=split(/\./,$id);
11891: if ($bighash{'map_type_'.$mapid} ne 'page') {
11892: my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
11893: $resid,$thisfn);
11894: if (ref($possibles) eq 'HASH') {
11895: $possibles->{$syval} = 1;
11896: }
11897: if ($checkforblock) {
11898: my @blockers = &has_comm_blocking('bre',$poss_syval,$file);
11899: unless (@blockers > 0) {
11900: $syval = $poss_syval;
11901: $realpossible++;
11902: }
11903: } else {
11904: $syval = $poss_syval;
11905: $realpossible++;
11906: }
11907: }
1.39 www 11908: }
1.191 harris41 11909: }
1.39 www 11910: if ($realpossible!=1) { $syval=''; }
1.249 www 11911: } else {
11912: $syval='';
1.37 www 11913: }
11914: }
1.1172.2.66 raeburn 11915: untie(%bighash);
1.481 raeburn 11916: }
1.31 www 11917: }
1.62 www 11918: if ($syval) {
1.620 albertel 11919: return $env{$cache_str}=$syval;
1.62 www 11920: }
1.31 www 11921: }
1.949 raeburn 11922: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 11923: return $env{$cache_str}='';
1.31 www 11924: }
11925:
11926: # ---------------------------------------------------------- Return random seed
11927:
1.32 www 11928: sub numval {
11929: my $txt=shift;
11930: $txt=~tr/A-J/0-9/;
11931: $txt=~tr/a-j/0-9/;
11932: $txt=~tr/K-T/0-9/;
11933: $txt=~tr/k-t/0-9/;
11934: $txt=~tr/U-Z/0-5/;
11935: $txt=~tr/u-z/0-5/;
11936: $txt=~s/\D//g;
1.564 albertel 11937: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 11938: return int($txt);
1.368 albertel 11939: }
11940:
1.484 albertel 11941: sub numval2 {
11942: my $txt=shift;
11943: $txt=~tr/A-J/0-9/;
11944: $txt=~tr/a-j/0-9/;
11945: $txt=~tr/K-T/0-9/;
11946: $txt=~tr/k-t/0-9/;
11947: $txt=~tr/U-Z/0-5/;
11948: $txt=~tr/u-z/0-5/;
11949: $txt=~s/\D//g;
11950: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
11951: my $total;
11952: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 11953: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 11954: return int($total);
11955: }
11956:
1.575 albertel 11957: sub numval3 {
11958: use integer;
11959: my $txt=shift;
11960: $txt=~tr/A-J/0-9/;
11961: $txt=~tr/a-j/0-9/;
11962: $txt=~tr/K-T/0-9/;
11963: $txt=~tr/k-t/0-9/;
11964: $txt=~tr/U-Z/0-5/;
11965: $txt=~tr/u-z/0-5/;
11966: $txt=~s/\D//g;
11967: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
11968: my $total;
11969: foreach my $val (@txts) { $total+=$val; }
11970: if ($_64bit) { $total=(($total<<32)>>32); }
11971: return $total;
11972: }
11973:
1.675 albertel 11974: sub digest {
11975: my ($data)=@_;
11976: my $digest=&Digest::MD5::md5($data);
11977: my ($a,$b,$c,$d)=unpack("iiii",$digest);
11978: my ($e,$f);
11979: {
11980: use integer;
11981: $e=($a+$b);
11982: $f=($c+$d);
11983: if ($_64bit) {
11984: $e=(($e<<32)>>32);
11985: $f=(($f<<32)>>32);
11986: }
11987: }
11988: if (wantarray) {
11989: return ($e,$f);
11990: } else {
11991: my $g;
11992: {
11993: use integer;
11994: $g=($e+$f);
11995: if ($_64bit) {
11996: $g=(($g<<32)>>32);
11997: }
11998: }
11999: return $g;
12000: }
12001: }
12002:
1.368 albertel 12003: sub latest_rnd_algorithm_id {
1.675 albertel 12004: return '64bit5';
1.366 albertel 12005: }
1.32 www 12006:
1.503 albertel 12007: sub get_rand_alg {
12008: my ($courseid)=@_;
1.790 albertel 12009: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 12010: if ($courseid) {
1.620 albertel 12011: return $env{"course.$courseid.rndseed"};
1.503 albertel 12012: }
12013: return &latest_rnd_algorithm_id();
12014: }
12015:
1.562 albertel 12016: sub validCODE {
12017: my ($CODE)=@_;
12018: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
12019: return 0;
12020: }
12021:
1.491 albertel 12022: sub getCODE {
1.620 albertel 12023: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 12024: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
12025: defined($Apache::lonhomework::parsing_a_task) ) &&
12026: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 12027: return $Apache::lonhomework::history{'resource.CODE'};
12028: }
12029: return undef;
12030: }
1.1133 foxr 12031: #
12032: # Determines the random seed for a specific context:
12033: #
12034: # parameters:
12035: # symb - in course context the symb for the seed.
12036: # course_id - The course id of the form domain_coursenum.
12037: # domain - Domain for the user.
12038: # course - Course for the user.
12039: # cenv - environment of the course.
12040: #
12041: # NOTE:
12042: # All parameters are picked out of the environment if missing
12043: # or not defined.
12044: # If a symb cannot be determined the current time is used instead.
12045: #
12046: # For a given well defined symb, courside, domain, username,
12047: # and course environment, the seed is reproducible.
12048: #
1.31 www 12049: sub rndseed {
1.1133 foxr 12050: my ($symb,$courseid,$domain,$username, $cenv)=@_;
1.790 albertel 12051: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 12052: if (!defined($symb)) {
1.366 albertel 12053: unless ($symb=$wsymb) { return time; }
12054: }
1.1146 foxr 12055: if (!defined $courseid) {
12056: $courseid=$wcourseid;
12057: }
12058: if (!defined $domain) { $domain=$wdomain; }
12059: if (!defined $username) { $username=$wusername }
1.1133 foxr 12060:
12061: my $which;
12062: if (defined($cenv->{'rndseed'})) {
12063: $which = $cenv->{'rndseed'};
12064: } else {
12065: $which =&get_rand_alg($courseid);
12066: }
1.491 albertel 12067: if (defined(&getCODE())) {
1.675 albertel 12068: if ($which eq '64bit5') {
12069: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
12070: } elsif ($which eq '64bit4') {
1.575 albertel 12071: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
12072: } else {
12073: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
12074: }
1.675 albertel 12075: } elsif ($which eq '64bit5') {
12076: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 12077: } elsif ($which eq '64bit4') {
12078: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 12079: } elsif ($which eq '64bit3') {
12080: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 12081: } elsif ($which eq '64bit2') {
12082: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 12083: } elsif ($which eq '64bit') {
12084: return &rndseed_64bit($symb,$courseid,$domain,$username);
12085: }
12086: return &rndseed_32bit($symb,$courseid,$domain,$username);
12087: }
12088:
12089: sub rndseed_32bit {
12090: my ($symb,$courseid,$domain,$username)=@_;
12091: {
12092: use integer;
12093: my $symbchck=unpack("%32C*",$symb) << 27;
12094: my $symbseed=numval($symb) << 22;
12095: my $namechck=unpack("%32C*",$username) << 17;
12096: my $nameseed=numval($username) << 12;
12097: my $domainseed=unpack("%32C*",$domain) << 7;
12098: my $courseseed=unpack("%32C*",$courseid);
12099: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 12100: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12101: #&logthis("rndseed :$num:$symb");
1.564 albertel 12102: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 12103: return $num;
12104: }
12105: }
12106:
12107: sub rndseed_64bit {
12108: my ($symb,$courseid,$domain,$username)=@_;
12109: {
12110: use integer;
12111: my $symbchck=unpack("%32S*",$symb) << 21;
12112: my $symbseed=numval($symb) << 10;
12113: my $namechck=unpack("%32S*",$username);
12114:
12115: my $nameseed=numval($username) << 21;
12116: my $domainseed=unpack("%32S*",$domain) << 10;
12117: my $courseseed=unpack("%32S*",$courseid);
12118:
12119: my $num1=$symbchck+$symbseed+$namechck;
12120: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12121: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12122: #&logthis("rndseed :$num:$symb");
1.564 albertel 12123: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 12124: return "$num1,$num2";
1.155 albertel 12125: }
1.366 albertel 12126: }
12127:
1.443 albertel 12128: sub rndseed_64bit2 {
12129: my ($symb,$courseid,$domain,$username)=@_;
12130: {
12131: use integer;
12132: # strings need to be an even # of cahracters long, it it is odd the
12133: # last characters gets thrown away
12134: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12135: my $symbseed=numval($symb) << 10;
12136: my $namechck=unpack("%32S*",$username.' ');
12137:
12138: my $nameseed=numval($username) << 21;
1.501 albertel 12139: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12140: my $courseseed=unpack("%32S*",$courseid.' ');
12141:
12142: my $num1=$symbchck+$symbseed+$namechck;
12143: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12144: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12145: #&logthis("rndseed :$num:$symb");
1.803 albertel 12146: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 12147: return "$num1,$num2";
12148: }
12149: }
12150:
12151: sub rndseed_64bit3 {
12152: my ($symb,$courseid,$domain,$username)=@_;
12153: {
12154: use integer;
12155: # strings need to be an even # of cahracters long, it it is odd the
12156: # last characters gets thrown away
12157: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12158: my $symbseed=numval2($symb) << 10;
12159: my $namechck=unpack("%32S*",$username.' ');
12160:
12161: my $nameseed=numval2($username) << 21;
1.443 albertel 12162: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12163: my $courseseed=unpack("%32S*",$courseid.' ');
12164:
12165: my $num1=$symbchck+$symbseed+$namechck;
12166: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12167: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12168: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 12169: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12170:
1.503 albertel 12171: return "$num1:$num2";
1.443 albertel 12172: }
12173: }
12174:
1.575 albertel 12175: sub rndseed_64bit4 {
12176: my ($symb,$courseid,$domain,$username)=@_;
12177: {
12178: use integer;
12179: # strings need to be an even # of cahracters long, it it is odd the
12180: # last characters gets thrown away
12181: my $symbchck=unpack("%32S*",$symb.' ') << 21;
12182: my $symbseed=numval3($symb) << 10;
12183: my $namechck=unpack("%32S*",$username.' ');
12184:
12185: my $nameseed=numval3($username) << 21;
12186: my $domainseed=unpack("%32S*",$domain.' ') << 10;
12187: my $courseseed=unpack("%32S*",$courseid.' ');
12188:
12189: my $num1=$symbchck+$symbseed+$namechck;
12190: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 12191: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
12192: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 12193: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.1110 www 12194:
1.575 albertel 12195: return "$num1:$num2";
12196: }
12197: }
12198:
1.675 albertel 12199: sub rndseed_64bit5 {
12200: my ($symb,$courseid,$domain,$username)=@_;
12201: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
12202: return "$num1:$num2";
12203: }
12204:
1.366 albertel 12205: sub rndseed_CODE_64bit {
12206: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 12207: {
1.366 albertel 12208: use integer;
1.443 albertel 12209: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 12210: my $symbseed=numval2($symb);
1.491 albertel 12211: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12212: my $CODEseed=numval(&getCODE());
1.443 albertel 12213: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 12214: my $num1=$symbseed+$CODEchck;
12215: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12216: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12217: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 12218: if ($_64bit) { $num1=(($num1<<32)>>32); }
12219: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 12220: return "$num1:$num2";
1.366 albertel 12221: }
12222: }
12223:
1.575 albertel 12224: sub rndseed_CODE_64bit4 {
12225: my ($symb,$courseid,$domain,$username)=@_;
12226: {
12227: use integer;
12228: my $symbchck=unpack("%32S*",$symb.' ') << 16;
12229: my $symbseed=numval3($symb);
12230: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
12231: my $CODEseed=numval3(&getCODE());
12232: my $courseseed=unpack("%32S*",$courseid.' ');
12233: my $num1=$symbseed+$CODEchck;
12234: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 12235: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
12236: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 12237: if ($_64bit) { $num1=(($num1<<32)>>32); }
12238: if ($_64bit) { $num2=(($num2<<32)>>32); }
12239: return "$num1:$num2";
12240: }
12241: }
12242:
1.675 albertel 12243: sub rndseed_CODE_64bit5 {
12244: my ($symb,$courseid,$domain,$username)=@_;
12245: my $code = &getCODE();
12246: my ($num1,$num2)=&digest("$symb,$courseid,$code");
12247: return "$num1:$num2";
12248: }
12249:
1.366 albertel 12250: sub setup_random_from_rndseed {
12251: my ($rndseed)=@_;
1.503 albertel 12252: if ($rndseed =~/([,:])/) {
1.1172.2.51 raeburn 12253: my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));
12254: if ((!$num1) || (!$num2) || ($num1 > 2147483562) || ($num2 > 2147483398)) {
12255: &Math::Random::random_set_seed_from_phrase($rndseed);
12256: } else {
12257: &Math::Random::random_set_seed($num1,$num2);
12258: }
1.366 albertel 12259: } else {
12260: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 12261: }
1.36 albertel 12262: }
12263:
1.474 albertel 12264: sub latest_receipt_algorithm_id {
1.835 albertel 12265: return 'receipt3';
1.474 albertel 12266: }
12267:
1.480 www 12268: sub recunique {
12269: my $fucourseid=shift;
12270: my $unique;
1.835 albertel 12271: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
12272: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12273: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 12274: } else {
12275: $unique=$perlvar{'lonReceipt'};
12276: }
12277: return unpack("%32C*",$unique);
12278: }
12279:
12280: sub recprefix {
12281: my $fucourseid=shift;
12282: my $prefix;
1.835 albertel 12283: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
12284: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 12285: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 12286: } else {
12287: $prefix=$perlvar{'lonHostID'};
12288: }
12289: return unpack("%32C*",$prefix);
12290: }
12291:
1.76 www 12292: sub ireceipt {
1.474 albertel 12293: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 12294:
12295: my $return =&recprefix($fucourseid).'-';
12296:
12297: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
12298: $env{'request.state'} eq 'construct') {
12299: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
12300: return $return;
12301: }
12302:
1.76 www 12303: my $cuname=unpack("%32C*",$funame);
12304: my $cudom=unpack("%32C*",$fudom);
12305: my $cucourseid=unpack("%32C*",$fucourseid);
12306: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 12307: my $cunique=&recunique($fucourseid);
1.474 albertel 12308: my $cpart=unpack("%32S*",$part);
1.835 albertel 12309: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
12310:
1.790 albertel 12311: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 12312:
12313: $return.= ($cunique%$cuname+
12314: $cunique%$cudom+
12315: $cusymb%$cuname+
12316: $cusymb%$cudom+
12317: $cucourseid%$cuname+
12318: $cucourseid%$cudom+
12319: $cpart%$cuname+
12320: $cpart%$cudom);
12321: } else {
12322: $return.= ($cunique%$cuname+
12323: $cunique%$cudom+
12324: $cusymb%$cuname+
12325: $cusymb%$cudom+
12326: $cucourseid%$cuname+
12327: $cucourseid%$cudom);
12328: }
12329: return $return;
1.76 www 12330: }
12331:
12332: sub receipt {
1.474 albertel 12333: my ($part)=@_;
1.790 albertel 12334: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 12335: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 12336: }
1.260 ng 12337:
1.790 albertel 12338: sub whichuser {
12339: my ($passedsymb)=@_;
12340: my ($symb,$courseid,$domain,$name,$publicuser);
12341: if (defined($env{'form.grade_symb'})) {
12342: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
12343: my $allowed=&allowed('vgr',$tmp_courseid);
12344: if (!$allowed &&
12345: exists($env{'request.course.sec'}) &&
12346: $env{'request.course.sec'} !~ /^\s*$/) {
12347: $allowed=&allowed('vgr',$tmp_courseid.
12348: '/'.$env{'request.course.sec'});
12349: }
12350: if ($allowed) {
12351: ($symb)=&get_env_multiple('form.grade_symb');
12352: $courseid=$tmp_courseid;
12353: ($domain)=&get_env_multiple('form.grade_domain');
12354: ($name)=&get_env_multiple('form.grade_username');
12355: return ($symb,$courseid,$domain,$name,$publicuser);
12356: }
12357: }
12358: if (!$passedsymb) {
12359: $symb=&symbread();
12360: } else {
12361: $symb=$passedsymb;
12362: }
12363: $courseid=$env{'request.course.id'};
12364: $domain=$env{'user.domain'};
12365: $name=$env{'user.name'};
12366: if ($name eq 'public' && $domain eq 'public') {
12367: if (!defined($env{'form.username'})) {
12368: $env{'form.username'}.=time.rand(10000000);
12369: }
12370: $name.=$env{'form.username'};
12371: }
12372: return ($symb,$courseid,$domain,$name,$publicuser);
12373:
12374: }
12375:
1.36 albertel 12376: # ------------------------------------------------------------ Serves up a file
1.472 albertel 12377: # returns either the contents of the file or
12378: # -1 if the file doesn't exist
1.481 raeburn 12379: #
12380: # if the target is a file that was uploaded via DOCS,
12381: # a check will be made to see if a current copy exists on the local server,
12382: # if it does this will be served, otherwise a copy will be retrieved from
12383: # the home server for the course and stored in /home/httpd/html/userfiles on
12384: # the local server.
1.472 albertel 12385:
1.36 albertel 12386: sub getfile {
1.538 albertel 12387: my ($file) = @_;
1.609 banghart 12388: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 12389: &repcopy($file);
12390: return &readfile($file);
12391: }
12392:
12393: sub repcopy_userfile {
12394: my ($file)=@_;
1.1142 raeburn 12395: my $londocroot = $perlvar{'lonDocRoot'};
12396: if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
1.1164 raeburn 12397: if ($file =~ m{^\Q/home/httpd/lonUsers/\E}) { return 'ok'; }
1.538 albertel 12398: my ($cdom,$cnum,$filename) =
1.811 albertel 12399: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 12400: my $uri="/uploaded/$cdom/$cnum/$filename";
12401: if (-e "$file") {
1.828 www 12402: # we already have a local copy, check it out
1.538 albertel 12403: my @fileinfo = stat($file);
1.828 www 12404: my $rtncode;
12405: my $info;
1.538 albertel 12406: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 12407: if ($lwpresp ne 'ok') {
1.828 www 12408: # there is no such file anymore, even though we had a local copy
1.482 albertel 12409: if ($rtncode eq '404') {
1.538 albertel 12410: unlink($file);
1.482 albertel 12411: }
12412: return -1;
12413: }
12414: if ($info < $fileinfo[9]) {
1.828 www 12415: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 12416: return 'ok';
1.828 www 12417: } else {
12418: # the file is outdated, get rid of it
12419: unlink($file);
1.482 albertel 12420: }
1.828 www 12421: }
12422: # one way or the other, at this point, we don't have the file
12423: # construct the correct path for the file
12424: my @parts = ($cdom,$cnum);
12425: if ($filename =~ m|^(.+)/[^/]+$|) {
12426: push @parts, split(/\//,$1);
12427: }
12428: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
12429: foreach my $part (@parts) {
12430: $path .= '/'.$part;
12431: if (!-e $path) {
12432: mkdir($path,0770);
1.482 albertel 12433: }
12434: }
1.828 www 12435: # now the path exists for sure
12436: # get a user agent
12437: my $ua=new LWP::UserAgent;
12438: my $transferfile=$file.'.in.transfer';
12439: # FIXME: this should flock
12440: if (-e $transferfile) { return 'ok'; }
12441: my $request;
12442: $uri=~s/^\///;
1.980 raeburn 12443: my $homeserver = &homeserver($cnum,$cdom);
12444: my $protocol = $protocol{$homeserver};
12445: $protocol = 'http' if ($protocol ne 'https');
12446: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 12447: my $response=$ua->request($request,$transferfile);
12448: # did it work?
12449: if ($response->is_error()) {
12450: unlink($transferfile);
12451: &logthis("Userfile repcopy failed for $uri");
12452: return -1;
12453: }
12454: # worked, rename the transfer file
12455: rename($transferfile,$file);
1.607 raeburn 12456: return 'ok';
1.481 raeburn 12457: }
12458:
1.517 albertel 12459: sub tokenwrapper {
12460: my $uri=shift;
1.980 raeburn 12461: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 12462: $uri=~s|^/||;
1.620 albertel 12463: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 12464: my $token=$1;
1.552 albertel 12465: my (undef,$udom,$uname,$file)=split('/',$uri,4);
12466: if ($udom && $uname && $file) {
12467: $file=~s|(\?\.*)*$||;
1.949 raeburn 12468: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 12469: my $homeserver = &homeserver($uname,$udom);
12470: my $protocol = $protocol{$homeserver};
12471: $protocol = 'http' if ($protocol ne 'https');
12472: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 12473: (($uri=~/\?/)?'&':'?').'token='.$token.
12474: '&tokenissued='.$perlvar{'lonHostID'};
12475: } else {
12476: return '/adm/notfound.html';
12477: }
12478: }
12479:
1.828 www 12480: # call with reqtype HEAD: get last modification time
12481: # call with reqtype GET: get the file contents
12482: # Do not call this with reqtype GET for large files! It loads everything into memory
12483: #
1.481 raeburn 12484: sub getuploaded {
12485: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
12486: $uri=~s/^\///;
1.980 raeburn 12487: my $homeserver = &homeserver($cnum,$cdom);
12488: my $protocol = $protocol{$homeserver};
12489: $protocol = 'http' if ($protocol ne 'https');
12490: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 12491: my $ua=new LWP::UserAgent;
12492: my $request=new HTTP::Request($reqtype,$uri);
12493: my $response=$ua->request($request);
12494: $$rtncode = $response->code;
1.482 albertel 12495: if (! $response->is_success()) {
12496: return 'failed';
12497: }
12498: if ($reqtype eq 'HEAD') {
1.486 www 12499: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 12500: } elsif ($reqtype eq 'GET') {
12501: $$info = $response->content;
1.472 albertel 12502: }
1.482 albertel 12503: return 'ok';
1.36 albertel 12504: }
12505:
1.481 raeburn 12506: sub readfile {
12507: my $file = shift;
12508: if ( (! -e $file ) || ($file eq '') ) { return -1; };
12509: my $fh;
1.1172.2.96 raeburn 12510: open($fh,"<",$file);
1.481 raeburn 12511: my $a='';
1.800 albertel 12512: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 12513: return $a;
12514: }
12515:
1.36 albertel 12516: sub filelocation {
1.590 banghart 12517: my ($dir,$file) = @_;
12518: my $location;
12519: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 12520:
12521: if ($file =~ m-^/adm/-) {
12522: $file=~s-^/adm/wrapper/-/-;
12523: $file=~s-^/adm/coursedocs/showdoc/-/-;
12524: }
1.882 albertel 12525:
1.1139 www 12526: if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
1.956 raeburn 12527: $location = $file;
1.609 banghart 12528: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 12529: my ($udom,$uname,$filename)=
1.811 albertel 12530: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 12531: my $home=&homeserver($uname,$udom);
12532: my $is_me=0;
12533: my @ids=¤t_machine_ids();
12534: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
12535: if ($is_me) {
1.1117 foxr 12536: $location=propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 12537: } else {
12538: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
12539: $udom.'/'.$uname.'/'.$filename;
12540: }
1.882 albertel 12541: } elsif ($file =~ m-^/adm/-) {
12542: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 12543: } else {
12544: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.1139 www 12545: $file=~s:^/(res|priv)/:/:;
12546: my $space=$1;
1.590 banghart 12547: if ( !( $file =~ m:^/:) ) {
12548: $location = $dir. '/'.$file;
12549: } else {
1.1142 raeburn 12550: $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
1.590 banghart 12551: }
1.59 albertel 12552: }
1.590 banghart 12553: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 12554: while ($location=~m{/\.\./}) {
12555: if ($location =~ m{/[^/]+/\.\./}) {
12556: $location=~ s{/[^/]+/\.\./}{/}g;
12557: } else {
12558: $location=~ s{/\.\./}{/}g;
12559: }
12560: } #remove dir/..
1.590 banghart 12561: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
12562: return $location;
1.46 www 12563: }
1.36 albertel 12564:
1.46 www 12565: sub hreflocation {
12566: my ($dir,$file)=@_;
1.980 raeburn 12567: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 12568: $file=filelocation($dir,$file);
1.700 albertel 12569: } elsif ($file=~m-^/adm/-) {
12570: $file=~s-^/adm/wrapper/-/-;
12571: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 12572: }
12573: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
12574: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
12575: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.1143 raeburn 12576: $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
12577: {/uploaded/$1/$2/}x;
1.46 www 12578: }
1.913 albertel 12579: if ($file=~ m{^/userfiles/}) {
12580: $file =~ s{^/userfiles/}{/uploaded/};
12581: }
1.462 albertel 12582: return $file;
1.465 albertel 12583: }
12584:
1.1139 www 12585:
12586:
12587:
12588:
1.465 albertel 12589: sub current_machine_domains {
1.853 albertel 12590: return &machine_domains(&hostname($perlvar{'lonHostID'}));
12591: }
12592:
12593: sub machine_domains {
12594: my ($hostname) = @_;
1.465 albertel 12595: my @domains;
1.838 albertel 12596: my %hostname = &all_hostnames();
1.465 albertel 12597: while( my($id, $name) = each(%hostname)) {
1.467 matthew 12598: # &logthis("-$id-$name-$hostname-");
1.465 albertel 12599: if ($hostname eq $name) {
1.844 albertel 12600: push(@domains,&host_domain($id));
1.465 albertel 12601: }
12602: }
12603: return @domains;
12604: }
12605:
12606: sub current_machine_ids {
1.853 albertel 12607: return &machine_ids(&hostname($perlvar{'lonHostID'}));
12608: }
12609:
12610: sub machine_ids {
12611: my ($hostname) = @_;
12612: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 12613: my @ids;
1.888 albertel 12614: my %name_to_host = &all_names();
1.889 albertel 12615: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
12616: return @{ $name_to_host{$hostname} };
12617: }
12618: return;
1.31 www 12619: }
12620:
1.824 raeburn 12621: sub additional_machine_domains {
12622: my @domains;
1.1172.2.96 raeburn 12623: open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab");
1.824 raeburn 12624: while( my $line = <$fh>) {
12625: $line =~ s/\s//g;
12626: push(@domains,$line);
12627: }
12628: return @domains;
12629: }
12630:
12631: sub default_login_domain {
12632: my $domain = $perlvar{'lonDefDomain'};
12633: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
12634: foreach my $posdom (¤t_machine_domains(),
12635: &additional_machine_domains()) {
12636: if (lc($posdom) eq lc($testdomain)) {
12637: $domain=$posdom;
12638: last;
12639: }
12640: }
12641: return $domain;
12642: }
12643:
1.31 www 12644: # ------------------------------------------------------------- Declutters URLs
12645:
12646: sub declutter {
12647: my $thisfn=shift;
1.569 albertel 12648: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.1172.2.49 raeburn 12649: unless ($thisfn=~m{^/home/httpd/html/priv/}) {
12650: $thisfn=~s{^/home/httpd/html}{};
12651: }
1.31 www 12652: $thisfn=~s/^\///;
1.697 albertel 12653: $thisfn=~s|^adm/wrapper/||;
12654: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 12655: $thisfn=~s/^res\///;
1.1172 bisitz 12656: $thisfn=~s/^priv\///;
1.1032 raeburn 12657: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
12658: $thisfn=~s/\?.+$//;
12659: }
1.268 www 12660: return $thisfn;
12661: }
12662:
12663: # ------------------------------------------------------------- Clutter up URLs
12664:
12665: sub clutter {
12666: my $thisfn='/'.&declutter(shift);
1.887 albertel 12667: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 12668: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 12669: $thisfn='/res'.$thisfn;
12670: }
1.1031 raeburn 12671: if ($thisfn !~m|^/adm|) {
12672: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 12673: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 12674: } else {
12675: my ($ext) = ($thisfn =~ /\.(\w+)$/);
12676: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 12677: if ($embstyle eq 'ssi'
12678: || ($embstyle eq 'hdn')
12679: || ($embstyle eq 'rat')
12680: || ($embstyle eq 'prv')
12681: || ($embstyle eq 'ign')) {
12682: #do nothing with these
12683: } elsif (($embstyle eq 'img')
1.695 albertel 12684: || ($embstyle eq 'emb')
12685: || ($embstyle eq 'wrp')) {
12686: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 12687: } elsif ($embstyle eq 'unk'
12688: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 12689: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 12690: } else {
1.718 www 12691: # &logthis("Got a blank emb style");
1.695 albertel 12692: }
1.694 albertel 12693: }
12694: }
1.31 www 12695: return $thisfn;
1.12 www 12696: }
12697:
1.787 albertel 12698: sub clutter_with_no_wrapper {
12699: my $uri = &clutter(shift);
12700: if ($uri =~ m-^/adm/-) {
12701: $uri =~ s-^/adm/wrapper/-/-;
12702: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
12703: }
12704: return $uri;
12705: }
12706:
1.557 albertel 12707: sub freeze_escape {
12708: my ($value)=@_;
12709: if (ref($value)) {
12710: $value=&nfreeze($value);
12711: return '__FROZEN__'.&escape($value);
12712: }
12713: return &escape($value);
12714: }
12715:
1.11 www 12716:
1.557 albertel 12717: sub thaw_unescape {
12718: my ($value)=@_;
12719: if ($value =~ /^__FROZEN__/) {
12720: substr($value,0,10,undef);
12721: $value=&unescape($value);
12722: return &thaw($value);
12723: }
12724: return &unescape($value);
12725: }
12726:
1.436 albertel 12727: sub correct_line_ends {
12728: my ($result)=@_;
12729: $$result =~s/\r\n/\n/mg;
12730: $$result =~s/\r/\n/mg;
1.415 albertel 12731: }
1.1 albertel 12732: # ================================================================ Main Program
12733:
1.184 www 12734: sub goodbye {
1.204 albertel 12735: &logthis("Starting Shut down");
1.443 albertel 12736: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 12737: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 12738: #converted
1.599 albertel 12739: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 12740: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
12741: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
12742: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 12743: #1.1 only
1.870 albertel 12744: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
12745: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
12746: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
12747: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
12748: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 12749: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
12750: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 12751: &flushcourselogs();
12752: &logthis("Shutting down");
12753: }
12754:
1.852 albertel 12755: sub get_dns {
1.1172.2.17 raeburn 12756: my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
1.869 albertel 12757: if (!$ignore_cache) {
12758: my ($content,$cached)=
12759: &Apache::lonnet::is_cached_new('dns',$url);
12760: if ($cached) {
1.1172.2.17 raeburn 12761: &$func($content,$hashref);
1.869 albertel 12762: return;
12763: }
12764: }
12765:
12766: my %alldns;
1.1172.2.96 raeburn 12767: if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {
12768: foreach my $dns (<$config>) {
12769: next if ($dns !~ /^\^(\S*)/x);
12770: my $line = $1;
12771: my ($host,$protocol) = split(/:/,$line);
12772: if ($protocol ne 'https') {
12773: $protocol = 'http';
12774: }
12775: $alldns{$host} = $protocol;
1.979 raeburn 12776: }
1.1172.2.96 raeburn 12777: close($config);
1.869 albertel 12778: }
12779: while (%alldns) {
1.1172.2.52 raeburn 12780: my ($dns) = sort { $b cmp $a } keys(%alldns);
1.852 albertel 12781: my $ua=new LWP::UserAgent;
1.1134 raeburn 12782: $ua->timeout(30);
1.979 raeburn 12783: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 12784: my $response=$ua->request($request);
1.979 raeburn 12785: delete($alldns{$dns});
1.852 albertel 12786: next if ($response->is_error());
12787: my @content = split("\n",$response->content);
1.1172.2.17 raeburn 12788: unless ($nocache) {
1.1172.2.23 raeburn 12789: &do_cache_new('dns',$url,\@content,30*24*60*60);
1.1172.2.17 raeburn 12790: }
12791: &$func(\@content,$hashref);
1.869 albertel 12792: return;
1.852 albertel 12793: }
12794: close($config);
1.871 albertel 12795: my $which = (split('/',$url))[3];
12796: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
1.1172.2.96 raeburn 12797: open($config,"<","$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 12798: my @content = <$config>;
1.1172.2.17 raeburn 12799: &$func(\@content,$hashref);
12800: return;
12801: }
12802:
12803: # ------------------------------------------------------Get DNS checksums file
12804: sub parse_dns_checksums_tab {
12805: my ($lines,$hashref) = @_;
1.1172.2.53 raeburn 12806: my $lonhost = $perlvar{'lonHostID'};
12807: my $machine_dom = &Apache::lonnet::host_domain($lonhost);
1.1172.2.17 raeburn 12808: my $loncaparev = &get_server_loncaparev($machine_dom);
1.1172.2.53 raeburn 12809: my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
12810: my $webconfdir = '/etc/httpd/conf';
12811: if ($distro =~ /^(ubuntu|debian)(\d+)$/) {
12812: $webconfdir = '/etc/apache2';
12813: } elsif ($distro =~ /^sles(\d+)$/) {
12814: if ($1 >= 10) {
12815: $webconfdir = '/etc/apache2';
12816: }
12817: } elsif ($distro =~ /^suse(\d+\.\d+)$/) {
12818: if ($1 >= 10.0) {
12819: $webconfdir = '/etc/apache2';
12820: }
12821: }
1.1172.2.17 raeburn 12822: my ($release,$timestamp) = split(/\-/,$loncaparev);
12823: my (%chksum,%revnum);
12824: if (ref($lines) eq 'ARRAY') {
12825: chomp(@{$lines});
1.1172.2.34 raeburn 12826: my $version = shift(@{$lines});
12827: if ($version eq $release) {
1.1172.2.17 raeburn 12828: foreach my $line (@{$lines}) {
1.1172.2.34 raeburn 12829: my ($file,$version,$shasum) = split(/,/,$line);
1.1172.2.53 raeburn 12830: if ($file =~ m{^/etc/httpd/conf}) {
12831: if ($webconfdir eq '/etc/apache2') {
12832: $file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
12833: }
12834: }
1.1172.2.34 raeburn 12835: $chksum{$file} = $shasum;
12836: $revnum{$file} = $version;
1.1172.2.17 raeburn 12837: }
12838: if (ref($hashref) eq 'HASH') {
12839: %{$hashref} = (
12840: sums => \%chksum,
12841: versions => \%revnum,
12842: );
12843: }
12844: }
12845: }
1.869 albertel 12846: return;
1.852 albertel 12847: }
1.1172.2.17 raeburn 12848:
12849: sub fetch_dns_checksums {
12850: my %checksums;
1.1172.2.34 raeburn 12851: my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
1.1172.2.48 raeburn 12852: my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
1.1172.2.34 raeburn 12853: my ($release,$timestamp) = split(/\-/,$loncaparev);
12854: &get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
1.1172.2.17 raeburn 12855: \%checksums);
12856: return \%checksums;
12857: }
12858:
1.327 albertel 12859: # ------------------------------------------------------------ Read domain file
12860: {
1.852 albertel 12861: my $loaded;
1.846 albertel 12862: my %domain;
12863:
1.852 albertel 12864: sub parse_domain_tab {
12865: my ($lines) = @_;
12866: foreach my $line (@$lines) {
12867: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 12868:
1.846 albertel 12869: chomp($line);
1.852 albertel 12870: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 12871: my %this_domain;
12872: foreach my $field ('description', 'auth_def', 'auth_arg_def',
12873: 'lang_def', 'city', 'longi', 'lati',
12874: 'primary') {
12875: $this_domain{$field} = shift(@elements);
12876: }
12877: $domain{$name} = \%this_domain;
1.852 albertel 12878: }
12879: }
1.864 albertel 12880:
12881: sub reset_domain_info {
12882: undef($loaded);
12883: undef(%domain);
12884: }
12885:
1.852 albertel 12886: sub load_domain_tab {
1.1172.2.70 raeburn 12887: my ($ignore_cache,$nocache) = @_;
12888: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
1.852 albertel 12889: my $fh;
1.1172.2.96 raeburn 12890: if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {
1.852 albertel 12891: my @lines = <$fh>;
12892: &parse_domain_tab(\@lines);
1.448 albertel 12893: }
1.852 albertel 12894: close($fh);
12895: $loaded = 1;
1.327 albertel 12896: }
1.846 albertel 12897:
12898: sub domain {
1.852 albertel 12899: &load_domain_tab() if (!$loaded);
12900:
1.846 albertel 12901: my ($name,$what) = @_;
12902: return if ( !exists($domain{$name}) );
12903:
12904: if (!$what) {
12905: return $domain{$name}{'description'};
12906: }
12907: return $domain{$name}{$what};
12908: }
1.974 raeburn 12909:
12910: sub domain_info {
12911: &load_domain_tab() if (!$loaded);
12912: return %domain;
12913: }
12914:
1.327 albertel 12915: }
12916:
12917:
1.1 albertel 12918: # ------------------------------------------------------------- Read hosts file
12919: {
1.838 albertel 12920: my %hostname;
1.844 albertel 12921: my %hostdom;
1.845 albertel 12922: my %libserv;
1.852 albertel 12923: my $loaded;
1.888 albertel 12924: my %name_to_host;
1.1074 raeburn 12925: my %internetdom;
1.1107 raeburn 12926: my %LC_dns_serv;
1.852 albertel 12927:
12928: sub parse_hosts_tab {
12929: my ($file) = @_;
12930: foreach my $configline (@$file) {
12931: next if ($configline =~ /^(\#|\s*$ )/x);
1.1107 raeburn 12932: chomp($configline);
12933: if ($configline =~ /^\^/) {
12934: if ($configline =~ /^\^([\w.\-]+)/) {
12935: $LC_dns_serv{$1} = 1;
12936: }
12937: next;
12938: }
1.1074 raeburn 12939: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 12940: $name=~s/\s//g;
12941: if ($id && $domain && $role && $name) {
1.1172.2.96 raeburn 12942: if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
12943: my $curr = $hostname{$id};
12944: my $skip;
12945: if (ref($name_to_host{$curr}) eq 'ARRAY') {
12946: if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
12947: $skip = 1;
12948: } else {
12949: @{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
12950: }
12951: }
12952: unless ($skip) {
12953: push(@{$name_to_host{$name}},$id);
12954: }
12955: } else {
12956: push(@{$name_to_host{$name}},$id);
12957: }
1.852 albertel 12958: $hostname{$id}=$name;
12959: $hostdom{$id}=$domain;
12960: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 12961: if (defined($protocol)) {
12962: if ($protocol eq 'https') {
12963: $protocol{$id} = $protocol;
12964: } else {
12965: $protocol{$id} = 'http';
12966: }
1.968 raeburn 12967: } else {
1.969 raeburn 12968: $protocol{$id} = 'http';
1.968 raeburn 12969: }
1.1074 raeburn 12970: if (defined($intdom)) {
12971: $internetdom{$id} = $intdom;
12972: }
1.852 albertel 12973: }
12974: }
12975: }
1.864 albertel 12976:
12977: sub reset_hosts_info {
1.897 albertel 12978: &purge_remembered();
1.864 albertel 12979: &reset_domain_info();
12980: &reset_hosts_ip_info();
1.892 albertel 12981: undef(%name_to_host);
1.864 albertel 12982: undef(%hostname);
12983: undef(%hostdom);
12984: undef(%libserv);
12985: undef($loaded);
12986: }
1.1 albertel 12987:
1.852 albertel 12988: sub load_hosts_tab {
1.1172.2.70 raeburn 12989: my ($ignore_cache,$nocache) = @_;
12990: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
1.1172.2.96 raeburn 12991: open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");
1.852 albertel 12992: my @config = <$config>;
12993: &parse_hosts_tab(\@config);
12994: close($config);
12995: $loaded=1;
1.1 albertel 12996: }
1.852 albertel 12997:
1.838 albertel 12998: sub hostname {
1.852 albertel 12999: &load_hosts_tab() if (!$loaded);
13000:
1.838 albertel 13001: my ($lonid) = @_;
13002: return $hostname{$lonid};
13003: }
1.845 albertel 13004:
1.838 albertel 13005: sub all_hostnames {
1.852 albertel 13006: &load_hosts_tab() if (!$loaded);
13007:
1.838 albertel 13008: return %hostname;
13009: }
1.845 albertel 13010:
1.888 albertel 13011: sub all_names {
1.1172.2.70 raeburn 13012: my ($ignore_cache,$nocache) = @_;
13013: &load_hosts_tab($ignore_cache,$nocache) if (!$loaded);
1.888 albertel 13014:
13015: return %name_to_host;
13016: }
13017:
1.974 raeburn 13018: sub all_host_domain {
13019: &load_hosts_tab() if (!$loaded);
13020: return %hostdom;
13021: }
13022:
1.845 albertel 13023: sub is_library {
1.852 albertel 13024: &load_hosts_tab() if (!$loaded);
13025:
1.845 albertel 13026: return exists($libserv{$_[0]});
13027: }
13028:
13029: sub all_library {
1.852 albertel 13030: &load_hosts_tab() if (!$loaded);
13031:
1.845 albertel 13032: return %libserv;
13033: }
13034:
1.1062 droeschl 13035: sub unique_library {
13036: #2x reverse removes all hostnames that appear more than once
13037: my %unique = reverse &all_library();
13038: return reverse %unique;
13039: }
13040:
1.841 albertel 13041: sub get_servers {
1.852 albertel 13042: &load_hosts_tab() if (!$loaded);
13043:
1.841 albertel 13044: my ($domain,$type) = @_;
13045: my %possible_hosts = ($type eq 'library') ? %libserv
13046: : %hostname;
13047: my %result;
1.842 albertel 13048: if (ref($domain) eq 'ARRAY') {
13049: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 13050: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 13051: $result{$host} = $hostname;
13052: }
13053: }
13054: } else {
13055: while ( my ($host,$hostname) = each(%possible_hosts)) {
13056: if ($hostdom{$host} eq $domain) {
13057: $result{$host} = $hostname;
13058: }
1.841 albertel 13059: }
13060: }
13061: return %result;
13062: }
1.845 albertel 13063:
1.1062 droeschl 13064: sub get_unique_servers {
13065: my %unique = reverse &get_servers(@_);
13066: return reverse %unique;
13067: }
13068:
1.844 albertel 13069: sub host_domain {
1.852 albertel 13070: &load_hosts_tab() if (!$loaded);
13071:
1.844 albertel 13072: my ($lonid) = @_;
13073: return $hostdom{$lonid};
13074: }
13075:
1.841 albertel 13076: sub all_domains {
1.852 albertel 13077: &load_hosts_tab() if (!$loaded);
13078:
1.841 albertel 13079: my %seen;
13080: my @uniq = grep(!$seen{$_}++, values(%hostdom));
13081: return @uniq;
13082: }
1.1074 raeburn 13083:
13084: sub internet_dom {
13085: &load_hosts_tab() if (!$loaded);
13086:
13087: my ($lonid) = @_;
13088: return $internetdom{$lonid};
13089: }
1.1107 raeburn 13090:
13091: sub is_LC_dns {
13092: &load_hosts_tab() if (!$loaded);
13093:
13094: my ($hostname) = @_;
13095: return exists($LC_dns_serv{$hostname});
13096: }
13097:
1.1 albertel 13098: }
13099:
1.847 albertel 13100: {
13101: my %iphost;
1.856 albertel 13102: my %name_to_ip;
13103: my %lonid_to_ip;
1.869 albertel 13104:
1.847 albertel 13105: sub get_hosts_from_ip {
13106: my ($ip) = @_;
13107: my %iphosts = &get_iphost();
13108: if (ref($iphosts{$ip})) {
13109: return @{$iphosts{$ip}};
13110: }
13111: return;
1.839 albertel 13112: }
1.864 albertel 13113:
13114: sub reset_hosts_ip_info {
13115: undef(%iphost);
13116: undef(%name_to_ip);
13117: undef(%lonid_to_ip);
13118: }
1.856 albertel 13119:
13120: sub get_host_ip {
13121: my ($lonid) = @_;
13122: if (exists($lonid_to_ip{$lonid})) {
13123: return $lonid_to_ip{$lonid};
13124: }
13125: my $name=&hostname($lonid);
13126: my $ip = gethostbyname($name);
13127: return if (!$ip || length($ip) ne 4);
13128: $ip=inet_ntoa($ip);
13129: $name_to_ip{$name} = $ip;
13130: $lonid_to_ip{$lonid} = $ip;
13131: return $ip;
13132: }
1.847 albertel 13133:
13134: sub get_iphost {
1.1172.2.70 raeburn 13135: my ($ignore_cache,$nocache) = @_;
1.894 albertel 13136:
1.869 albertel 13137: if (!$ignore_cache) {
13138: if (%iphost) {
13139: return %iphost;
13140: }
13141: my ($ip_info,$cached)=
13142: &Apache::lonnet::is_cached_new('iphost','iphost');
13143: if ($cached) {
13144: %iphost = %{$ip_info->[0]};
13145: %name_to_ip = %{$ip_info->[1]};
13146: %lonid_to_ip = %{$ip_info->[2]};
13147: return %iphost;
13148: }
13149: }
1.894 albertel 13150:
13151: # get yesterday's info for fallback
13152: my %old_name_to_ip;
13153: my ($ip_info,$cached)=
13154: &Apache::lonnet::is_cached_new('iphost','iphost');
13155: if ($cached) {
13156: %old_name_to_ip = %{$ip_info->[1]};
13157: }
13158:
1.1172.2.70 raeburn 13159: my %name_to_host = &all_names($ignore_cache,$nocache);
1.888 albertel 13160: foreach my $name (keys(%name_to_host)) {
1.847 albertel 13161: my $ip;
13162: if (!exists($name_to_ip{$name})) {
13163: $ip = gethostbyname($name);
13164: if (!$ip || length($ip) ne 4) {
1.894 albertel 13165: if (defined($old_name_to_ip{$name})) {
13166: $ip = $old_name_to_ip{$name};
13167: &logthis("Can't find $name defaulting to old $ip");
13168: } else {
13169: &logthis("Name $name no IP found");
13170: next;
13171: }
13172: } else {
13173: $ip=inet_ntoa($ip);
1.847 albertel 13174: }
13175: $name_to_ip{$name} = $ip;
13176: } else {
13177: $ip = $name_to_ip{$name};
1.653 albertel 13178: }
1.888 albertel 13179: foreach my $id (@{ $name_to_host{$name} }) {
13180: $lonid_to_ip{$id} = $ip;
13181: }
13182: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 13183: }
1.1172.2.70 raeburn 13184: unless ($nocache) {
13185: &do_cache_new('iphost','iphost',
13186: [\%iphost,\%name_to_ip,\%lonid_to_ip],
13187: 48*60*60);
13188: }
1.869 albertel 13189:
1.847 albertel 13190: return %iphost;
1.598 albertel 13191: }
13192:
1.992 raeburn 13193: #
13194: # Given a DNS returns the loncapa host name for that DNS
13195: #
13196: sub host_from_dns {
13197: my ($dns) = @_;
13198: my @hosts;
13199: my $ip;
13200:
1.993 raeburn 13201: if (exists($name_to_ip{$dns})) {
1.992 raeburn 13202: $ip = $name_to_ip{$dns};
13203: }
13204: if (!$ip) {
13205: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
13206: if (length($ip) == 4) {
13207: $ip = &IO::Socket::inet_ntoa($ip);
13208: }
13209: }
13210: if ($ip) {
13211: @hosts = get_hosts_from_ip($ip);
13212: return $hosts[0];
13213: }
13214: return undef;
1.986 foxr 13215: }
1.992 raeburn 13216:
1.1074 raeburn 13217: sub get_internet_names {
13218: my ($lonid) = @_;
13219: return if ($lonid eq '');
13220: my ($idnref,$cached)=
13221: &Apache::lonnet::is_cached_new('internetnames',$lonid);
13222: if ($cached) {
13223: return $idnref;
13224: }
13225: my $ip = &get_host_ip($lonid);
13226: my @hosts = &get_hosts_from_ip($ip);
13227: my %iphost = &get_iphost();
13228: my (@idns,%seen);
13229: foreach my $id (@hosts) {
13230: my $dom = &host_domain($id);
13231: my $prim_id = &domain($dom,'primary');
13232: my $prim_ip = &get_host_ip($prim_id);
13233: next if ($seen{$prim_ip});
13234: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
13235: foreach my $id (@{$iphost{$prim_ip}}) {
13236: my $intdom = &internet_dom($id);
13237: unless (grep(/^\Q$intdom\E$/,@idns)) {
13238: push(@idns,$intdom);
13239: }
13240: }
13241: }
13242: $seen{$prim_ip} = 1;
13243: }
1.1172.2.23 raeburn 13244: return &do_cache_new('internetnames',$lonid,\@idns,12*60*60);
1.1074 raeburn 13245: }
13246:
1.986 foxr 13247: }
13248:
1.1079 raeburn 13249: sub all_loncaparevs {
1.1172.2.39 raeburn 13250: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
1.1079 raeburn 13251: }
13252:
1.1172.2.27 raeburn 13253: # ------------------------------------------------------- Read loncaparev table
13254: {
13255: sub load_loncaparevs {
13256: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
1.1172.2.96 raeburn 13257: if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
1.1172.2.27 raeburn 13258: while (my $configline=<$config>) {
13259: chomp($configline);
13260: my ($hostid,$loncaparev)=split(/:/,$configline);
13261: $loncaparevs{$hostid}=$loncaparev;
13262: }
13263: close($config);
13264: }
13265: }
13266: }
13267: }
13268:
13269: # ----------------------------------------------------- Read serverhostID table
13270: {
13271: sub load_serverhomeIDs {
13272: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
1.1172.2.96 raeburn 13273: if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
1.1172.2.27 raeburn 13274: while (my $configline=<$config>) {
13275: chomp($configline);
13276: my ($name,$id)=split(/:/,$configline);
13277: $serverhomeIDs{$name}=$id;
13278: }
13279: close($config);
13280: }
13281: }
13282: }
13283: }
13284:
13285:
1.862 albertel 13286: BEGIN {
13287:
13288: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
13289: unless ($readit) {
13290: {
13291: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
13292: %perlvar = (%perlvar,%{$configvars});
13293: }
13294:
13295:
1.1 albertel 13296: # ------------------------------------------------------ Read spare server file
13297: {
1.1172.2.96 raeburn 13298: open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 13299:
13300: while (my $configline=<$config>) {
13301: chomp($configline);
1.284 matthew 13302: if ($configline) {
1.784 albertel 13303: my ($host,$type) = split(':',$configline,2);
1.785 albertel 13304: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 13305: push(@{ $spareid{$type} }, $host);
1.1 albertel 13306: }
13307: }
1.448 albertel 13308: close($config);
1.1 albertel 13309: }
1.11 www 13310: # ------------------------------------------------------------ Read permissions
13311: {
1.1172.2.96 raeburn 13312: open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");
1.11 www 13313:
13314: while (my $configline=<$config>) {
1.448 albertel 13315: chomp($configline);
13316: if ($configline) {
13317: my ($role,$perm)=split(/ /,$configline);
13318: if ($perm ne '') { $pr{$role}=$perm; }
13319: }
1.11 www 13320: }
1.448 albertel 13321: close($config);
1.11 www 13322: }
13323:
13324: # -------------------------------------------- Read plain texts for permissions
13325: {
1.1172.2.96 raeburn 13326: open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 13327:
13328: while (my $configline=<$config>) {
1.448 albertel 13329: chomp($configline);
13330: if ($configline) {
1.742 raeburn 13331: my ($short,@plain)=split(/:/,$configline);
13332: %{$prp{$short}} = ();
13333: if (@plain > 0) {
13334: $prp{$short}{'std'} = $plain[0];
13335: for (my $i=1; $i<@plain; $i++) {
13336: $prp{$short}{'alt'.$i} = $plain[$i];
13337: }
13338: }
1.448 albertel 13339: }
1.135 www 13340: }
1.448 albertel 13341: close($config);
1.135 www 13342: }
13343:
13344: # ---------------------------------------------------------- Read package table
13345: {
1.1172.2.96 raeburn 13346: open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");
1.135 www 13347:
13348: while (my $configline=<$config>) {
1.483 albertel 13349: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 13350: chomp($configline);
13351: my ($short,$plain)=split(/:/,$configline);
13352: my ($pack,$name)=split(/\&/,$short);
13353: if ($plain ne '') {
13354: $packagetab{$pack.'&'.$name.'&name'}=$name;
13355: $packagetab{$short}=$plain;
13356: }
1.11 www 13357: }
1.448 albertel 13358: close($config);
1.329 matthew 13359: }
13360:
1.1172.2.27 raeburn 13361: # --------------------------------------------------------- Read loncaparev table
1.1073 raeburn 13362:
1.1172.2.27 raeburn 13363: &load_loncaparevs();
13364:
13365: # ------------------------------------------------------- Read serverhostID table
13366:
13367: &load_serverhomeIDs();
1.1074 raeburn 13368:
1.1172.2.27 raeburn 13369: # ---------------------------------------------------------- Read releaseslist XML
1.1079 raeburn 13370: {
13371: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
13372: if (-e $file) {
13373: my $parser = HTML::LCParser->new($file);
13374: while (my $token = $parser->get_token()) {
13375: if ($token->[0] eq 'S') {
13376: my $item = $token->[1];
13377: my $name = $token->[2]{'name'};
13378: my $value = $token->[2]{'value'};
13379: if ($item ne '' && $name ne '' && $value ne '') {
13380: my $release = $parser->get_text();
13381: $release =~ s/(^\s*|\s*$ )//gx;
13382: $needsrelease{$item.':'.$name.':'.$value} = $release;
13383: }
13384: }
13385: }
13386: }
1.1073 raeburn 13387: }
13388:
1.1138 raeburn 13389: # ---------------------------------------------------------- Read managers table
13390: {
13391: if (-e "$perlvar{'lonTabDir'}/managers.tab") {
1.1172.2.96 raeburn 13392: if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {
1.1138 raeburn 13393: while (my $configline=<$config>) {
13394: chomp($configline);
13395: next if ($configline =~ /^\#/);
13396: if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
13397: $managerstab{$configline} = 1;
13398: }
13399: }
13400: close($config);
13401: }
13402: }
13403: }
13404:
1.329 matthew 13405: # ------------- set up temporary directory
13406: {
1.1117 foxr 13407: $tmpdir = LONCAPA::tempdir();
1.329 matthew 13408:
1.11 www 13409: }
13410:
1.794 albertel 13411: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
13412: 'compress_threshold'=> 20_000,
13413: });
1.185 www 13414:
1.281 www 13415: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 13416: $dumpcount=0;
1.958 www 13417: $locknum=0;
1.22 www 13418:
1.163 harris41 13419: &logtouch();
1.672 albertel 13420: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 13421: $readit=1;
1.564 albertel 13422: {
13423: use integer;
13424: my $test=(2**32)+1;
1.568 albertel 13425: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 13426: &logthis(" Detected 64bit platform ($_64bit)");
13427: }
1.195 www 13428: }
1.1 albertel 13429: }
1.179 www 13430:
1.1 albertel 13431: 1;
1.191 harris41 13432: __END__
13433:
1.243 albertel 13434: =pod
13435:
1.191 harris41 13436: =head1 NAME
13437:
1.243 albertel 13438: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 13439:
13440: =head1 SYNOPSIS
13441:
1.243 albertel 13442: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 13443:
13444: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
13445:
1.243 albertel 13446: Common parameters:
13447:
13448: =over 4
13449:
13450: =item *
13451:
13452: $uname : an internal username (if $cname expecting a course Id specifically)
13453:
13454: =item *
13455:
13456: $udom : a domain (if $cdom expecting a course's domain specifically)
13457:
13458: =item *
13459:
13460: $symb : a resource instance identifier
13461:
13462: =item *
13463:
13464: $namespace : the name of a .db file that contains the data needed or
13465: being set.
13466:
13467: =back
13468:
1.394 bowersj2 13469: =head1 OVERVIEW
1.191 harris41 13470:
1.394 bowersj2 13471: lonnet provides subroutines which interact with the
13472: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
13473: about classes, users, and resources.
1.243 albertel 13474:
13475: For many of these objects you can also use this to store data about
13476: them or modify them in various ways.
1.191 harris41 13477:
1.394 bowersj2 13478: =head2 Symbs
1.191 harris41 13479:
1.394 bowersj2 13480: To identify a specific instance of a resource, LON-CAPA uses symbols
13481: or "symbs"X<symb>. These identifiers are built from the URL of the
13482: map, the resource number of the resource in the map, and the URL of
13483: the resource itself. The latter is somewhat redundant, but might help
13484: if maps change.
13485:
13486: An example is
13487:
13488: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
13489:
13490: The respective map entry is
13491:
13492: <resource id="19" src="/res/msu/korte/tests/part12.problem"
13493: title="Problem 2">
13494: </resource>
13495:
13496: Symbs are used by the random number generator, as well as to store and
13497: restore data specific to a certain instance of for example a problem.
13498:
13499: =head2 Storing And Retrieving Data
13500:
13501: X<store()>X<cstore()>X<restore()>Three of the most important functions
13502: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
13503: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
13504: is is the non-critical message twin of cstore. These functions are for
13505: handlers to store a perl hash to a user's permanent data space in an
13506: easy manner, and to retrieve it again on another call. It is expected
13507: that a handler would use this once at the beginning to retrieve data,
13508: and then again once at the end to send only the new data back.
13509:
13510: The data is stored in the user's data directory on the user's
13511: homeserver under the ID of the course.
13512:
13513: The hash that is returned by restore will have all of the previous
13514: value for all of the elements of the hash.
13515:
13516: Example:
13517:
13518: #creating a hash
13519: my %hash;
13520: $hash{'foo'}='bar';
13521:
13522: #storing it
13523: &Apache::lonnet::cstore(\%hash);
13524:
13525: #changing a value
13526: $hash{'foo'}='notbar';
13527:
13528: #adding a new value
13529: $hash{'bar'}='foo';
13530: &Apache::lonnet::cstore(\%hash);
13531:
13532: #retrieving the hash
13533: my %history=&Apache::lonnet::restore();
13534:
13535: #print the hash
13536: foreach my $key (sort(keys(%history))) {
13537: print("\%history{$key} = $history{$key}");
13538: }
13539:
13540: Will print out:
1.191 harris41 13541:
1.394 bowersj2 13542: %history{1:foo} = bar
13543: %history{1:keys} = foo:timestamp
13544: %history{1:timestamp} = 990455579
13545: %history{2:bar} = foo
13546: %history{2:foo} = notbar
13547: %history{2:keys} = foo:bar:timestamp
13548: %history{2:timestamp} = 990455580
13549: %history{bar} = foo
13550: %history{foo} = notbar
13551: %history{timestamp} = 990455580
13552: %history{version} = 2
13553:
13554: Note that the special hash entries C<keys>, C<version> and
13555: C<timestamp> were added to the hash. C<version> will be equal to the
13556: total number of versions of the data that have been stored. The
13557: C<timestamp> attribute will be the UNIX time the hash was
13558: stored. C<keys> is available in every historical section to list which
13559: keys were added or changed at a specific historical revision of a
13560: hash.
13561:
13562: B<Warning>: do not store the hash that restore returns directly. This
13563: will cause a mess since it will restore the historical keys as if the
13564: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 13565:
1.394 bowersj2 13566: Calling convention:
1.191 harris41 13567:
1.1172.2.27 raeburn 13568: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
1.1172.2.64 raeburn 13569: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);
1.191 harris41 13570:
1.394 bowersj2 13571: For more detailed information, see lonnet specific documentation.
1.191 harris41 13572:
1.394 bowersj2 13573: =head1 RETURN MESSAGES
1.191 harris41 13574:
1.394 bowersj2 13575: =over 4
1.191 harris41 13576:
1.394 bowersj2 13577: =item * B<con_lost>: unable to contact remote host
1.191 harris41 13578:
1.394 bowersj2 13579: =item * B<con_delayed>: unable to contact remote host, message will be delivered
13580: when the connection is brought back up
1.191 harris41 13581:
1.394 bowersj2 13582: =item * B<con_failed>: unable to contact remote host and unable to save message
13583: for later delivery
1.191 harris41 13584:
1.967 bisitz 13585: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 13586:
1.394 bowersj2 13587: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 13588: that was requested
1.191 harris41 13589:
1.243 albertel 13590: =back
1.191 harris41 13591:
1.243 albertel 13592: =head1 PUBLIC SUBROUTINES
1.191 harris41 13593:
1.243 albertel 13594: =head2 Session Environment Functions
1.191 harris41 13595:
1.243 albertel 13596: =over 4
1.191 harris41 13597:
1.394 bowersj2 13598: =item *
13599: X<appenv()>
1.949 raeburn 13600: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 13601: the user envirnoment file, and will be restored for each access this
1.620 albertel 13602: user makes during this session, also modifies the %env for the current
1.949 raeburn 13603: process. Optional rolesarrayref - if defined contains a reference to an array
13604: of roles which are exempt from the restriction on modifying user.role entries
13605: in the user's environment.db and in %env.
1.191 harris41 13606:
13607: =item *
1.394 bowersj2 13608: X<delenv()>
1.987 raeburn 13609: B<delenv($delthis,$regexp)>: removes all items from the session
13610: environment file that begin with $delthis. If the
13611: optional second arg - $regexp - is true, $delthis is treated as a
13612: regular expression, otherwise \Q$delthis\E is used.
13613: The values are also deleted from the current processes %env.
1.191 harris41 13614:
1.795 albertel 13615: =item * get_env_multiple($name)
13616:
13617: gets $name from the %env hash, it seemlessly handles the cases where multiple
13618: values may be defined and end up as an array ref.
13619:
13620: returns an array of values
13621:
1.243 albertel 13622: =back
13623:
13624: =head2 User Information
1.191 harris41 13625:
1.243 albertel 13626: =over 4
1.191 harris41 13627:
13628: =item *
1.394 bowersj2 13629: X<queryauthenticate()>
13630: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 13631: authentication scheme
13632:
13633: =item *
1.394 bowersj2 13634: X<authenticate()>
1.1073 raeburn 13635: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 13636: authenticate user from domain's lib servers (first use the current
13637: one). C<$upass> should be the users password.
1.1073 raeburn 13638: $checkdefauth is optional (value is 1 if a check should be made to
13639: authenticate user using default authentication method, and allow
13640: account creation if username does not have account in the domain).
13641: $clientcancheckhost is optional (value is 1 if checking whether the
13642: server can host will occur on the client side in lonauth.pm).
1.191 harris41 13643:
13644: =item *
1.394 bowersj2 13645: X<homeserver()>
13646: B<homeserver($uname,$udom)>: find the server which has
13647: the user's directory and files (there must be only one), this caches
13648: the answer, and also caches if there is a borken connection.
1.191 harris41 13649:
13650: =item *
1.394 bowersj2 13651: X<idget()>
13652: B<idget($udom,@ids)>: find the usernames behind a list of IDs
13653: (IDs are a unique resource in a domain, there must be only 1 ID per
13654: username, and only 1 username per ID in a specific domain) (returns
13655: hash: id=>name,id=>name)
1.191 harris41 13656:
13657: =item *
1.394 bowersj2 13658: X<idrget()>
13659: B<idrget($udom,@unames)>: find the IDs behind a list of
13660: usernames (returns hash: name=>id,name=>id)
1.191 harris41 13661:
13662: =item *
1.394 bowersj2 13663: X<idput()>
13664: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 13665:
13666: =item *
1.394 bowersj2 13667: X<rolesinit()>
1.1169 droeschl 13668: B<rolesinit($udom,$username)>: get user privileges.
13669: returns user role, first access and timer interval hashes
1.243 albertel 13670:
13671: =item *
1.1171 droeschl 13672: X<privileged()>
13673: B<privileged($username,$domain)>: returns a true if user has a
13674: privileged and active role (i.e. su or dc), false otherwise.
13675:
13676: =item *
1.551 albertel 13677: X<getsection()>
13678: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 13679: course $cname, return section name/number or '' for "not in course"
13680: and '-1' for "no section"
13681:
13682: =item *
1.394 bowersj2 13683: X<userenvironment()>
13684: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 13685: passed in @what from the requested user's environment, returns a hash
13686:
1.858 raeburn 13687: =item *
13688: X<userlog_query()>
1.859 albertel 13689: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
13690: activity.log file. %filters defines filters applied when parsing the
13691: log file. These can be start or end timestamps, or the type of action
13692: - log to look for Login or Logout events, check for Checkin or
13693: Checkout, role for role selection. The response is in the form
13694: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
13695: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 13696:
1.243 albertel 13697: =back
13698:
13699: =head2 User Roles
13700:
13701: =over 4
13702:
13703: =item *
13704:
1.1172.2.65 raeburn 13705: allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;
13706: returns codes for allowed actions.
13707:
13708: The first argument is required, all others are optional.
13709:
13710: $priv is the privilege being checked.
13711: $uri contains additional information about what is being checked for access (e.g.,
13712: URL, course ID etc.).
13713: $symb is the unique resource instance identifier in a course; if needed,
13714: but not provided, it will be retrieved via a call to &symbread().
13715: $role is the role for which a priv is being checked (only used if priv is evb).
13716: $clientip is the user's IP address (only used when checking for access to portfolio
13717: files).
13718: $noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
13719: prevents recursive calls to &allowed.
13720:
1.243 albertel 13721: F: full access
13722: U,I,K: authentication modes (cxx only)
13723: '': forbidden
13724: 1: user needs to choose course
13725: 2: browse allowed
1.766 albertel 13726: A: passphrase authentication needed
1.1172.2.65 raeburn 13727: B: access temporarily blocked because of a blocking event in a course.
1.243 albertel 13728:
13729: =item *
13730:
1.1172.2.13 raeburn 13731: constructaccess($url,$setpriv) : check for access to construction space URL
13732:
13733: See if the owner domain and name in the URL match those in the
13734: expected environment. If so, return three element list
13735: ($ownername,$ownerdomain,$ownerhome).
13736:
13737: Otherwise return the null string.
13738:
13739: If second argument 'setpriv' is true, it assigns the privileges,
13740: and returns the same three element list, unless the owner has
13741: blocked "ad hoc" Domain Coordinator access to the Author Space,
13742: in which case the null string is returned.
13743:
13744: =item *
13745:
1.1172.2.84 raeburn 13746: definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;
13747: define a custom role rolename set privileges in format of lonTabs/roles.tab
13748: for system, domain, and course level. $uname and $udom are optional (current
13749: user's username and domain will be used when either of $uname or $udom are absent.
1.243 albertel 13750:
13751: =item *
13752:
1.988 raeburn 13753: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
13754: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 13755: $type is Course (default) or Community.
1.988 raeburn 13756: If $forcedefault evaluates to true, text returned will be default
13757: text for $type. Otherwise, if this is a course, the text returned
13758: will be a custom name for the role (if defined in the course's
13759: environment). If no custom name is defined the default is returned.
13760:
1.832 raeburn 13761: =item *
13762:
1.1172.2.23 raeburn 13763: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
1.858 raeburn 13764: All arguments are optional. Returns a hash of a roles, either for
13765: co-author/assistant author roles for a user's Construction Space
1.906 albertel 13766: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 13767: In the hash, keys are set to colon-separated $uname,$udom,$role, and
13768: (optionally) if $withsec is true, a fourth colon-separated item - $section.
13769: For each key, value is set to colon-separated start and end times for
13770: the role. If no username and domain are specified, will default to
1.934 raeburn 13771: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 13772: of role statuses (active, future or previous), roles
13773: (e.g., cc,in, st etc.) and domains of the roles which can be used
13774: to restrict the list of roles reported. If no array ref is
13775: provided for types, will default to return only active roles.
1.834 albertel 13776:
1.1172.2.13 raeburn 13777: =item *
13778:
13779: in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
13780: user: $uname:$udom has a role in the course: $cdom_$cnum.
13781:
13782: Additional optional arguments are: $type (if role checking is to be restricted
13783: to certain user status types -- previous (expired roles), active (currently
13784: available roles) or future (roles available in the future), and
13785: $hideprivileged -- if true will not report course roles for users who
1.1172.2.23 raeburn 13786: have active Domain Coordinator role in course's domain or in additional
13787: domains (specified in 'Domains to check for privileged users' in course
13788: environment -- set via: Course Settings -> Classlists and staff listing).
13789:
13790: =item *
13791:
13792: privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
13793: $username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
13794: $possdomains and $possroles are optional array refs -- to domains to check and
13795: roles to check. If $possdomains is not specified, a dump will be done of the
13796: users' roles.db to check for a dc or su role in any domain. This can be
13797: time consuming if &privileged is called repeatedly (e.g., when displaying a
13798: classlist), so in such cases, supplying a $possdomains array is preferred, as
13799: this then allows &privileged_by_domain() to be used, which caches the identity
13800: of privileged users, eliminating the need for repeated calls to &dump().
13801:
13802: =item *
13803:
13804: privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
13805: where the outer hash keys are domains specified in the $possdomains array ref,
13806: next inner hash keys are privileged roles specified in the $roles array ref,
13807: and the innermost hash contains key = value pairs for username:domain = end:start
13808: for active or future "privileged" users with that role in that domain. To avoid
13809: repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
13810: innerhash are cached using priv_$role and $dom as the identifiers.
1.1172.2.13 raeburn 13811:
1.243 albertel 13812: =back
13813:
13814: =head2 User Modification
13815:
13816: =over 4
13817:
13818: =item *
13819:
1.957 raeburn 13820: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 13821: user for the level given by URL. Optional start and end dates (leave empty
13822: string or zero for "no date")
1.191 harris41 13823:
13824: =item *
13825:
1.243 albertel 13826: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
13827: change a users, password, possible return values are: ok,
13828: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
13829: refused
1.191 harris41 13830:
13831: =item *
13832:
1.243 albertel 13833: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 13834:
13835: =item *
13836:
1.1058 raeburn 13837: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
13838: $forceid,$desiredhome,$email,$inststatus,$candelete) :
13839:
13840: will update user information (firstname,middlename,lastname,generation,
13841: permanentemail), and if forceid is true, student/employee ID also.
13842: A user's institutional affiliation(s) can also be updated.
13843: User information fields will not be overwritten with empty entries
13844: unless the field is included in the $candelete array reference.
13845: This array is included when a single user is modified via "Manage Users",
13846: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 13847:
13848: =item *
13849:
1.286 matthew 13850: modifystudent
13851:
1.957 raeburn 13852: modify a student's enrollment and identification information.
1.1172.2.31 raeburn 13853: The course id is resolved based on the current user's environment.
13854: This means the invoking user must be a course coordinator or otherwise
1.286 matthew 13855: associated with a course.
13856:
1.297 matthew 13857: This call is essentially a wrapper for lonnet::modifyuser and
13858: lonnet::modify_student_enrollment
1.286 matthew 13859:
13860: Inputs:
13861:
13862: =over 4
13863:
1.957 raeburn 13864: =item B<$udom> Student's loncapa domain
1.286 matthew 13865:
1.957 raeburn 13866: =item B<$uname> Student's loncapa login name
1.286 matthew 13867:
1.964 bisitz 13868: =item B<$uid> Student/Employee ID
1.286 matthew 13869:
1.957 raeburn 13870: =item B<$umode> Student's authentication mode
1.286 matthew 13871:
1.957 raeburn 13872: =item B<$upass> Student's password
1.286 matthew 13873:
1.957 raeburn 13874: =item B<$first> Student's first name
1.286 matthew 13875:
1.957 raeburn 13876: =item B<$middle> Student's middle name
1.286 matthew 13877:
1.957 raeburn 13878: =item B<$last> Student's last name
1.286 matthew 13879:
1.957 raeburn 13880: =item B<$gene> Student's generation
1.286 matthew 13881:
1.957 raeburn 13882: =item B<$usec> Student's section in course
1.286 matthew 13883:
13884: =item B<$end> Unix time of the roles expiration
13885:
13886: =item B<$start> Unix time of the roles start date
13887:
13888: =item B<$forceid> If defined, allow $uid to be changed
13889:
13890: =item B<$desiredhome> server to use as home server for student
13891:
1.957 raeburn 13892: =item B<$email> Student's permanent e-mail address
13893:
13894: =item B<$type> Type of enrollment (auto or manual)
13895:
1.963 raeburn 13896: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
13897:
13898: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 13899:
1.963 raeburn 13900: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 13901:
1.963 raeburn 13902: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 13903:
1.1172.2.19 raeburn 13904: =item B<$inststatus> institutional status of user - : separated string of escaped status types
13905:
13906: =item B<$credits> Number of credits student will earn from this class - only needs to be supplied if value needs to be different from default credits for class.
1.957 raeburn 13907:
1.286 matthew 13908: =back
1.297 matthew 13909:
13910: =item *
13911:
13912: modify_student_enrollment
13913:
1.1172.2.31 raeburn 13914: Change a student's enrollment status in a class. The environment variable
1.297 matthew 13915: 'role.request.course' must be defined for this function to proceed.
13916:
13917: Inputs:
13918:
13919: =over 4
13920:
1.1172.2.31 raeburn 13921: =item $udom, student's domain
1.297 matthew 13922:
1.1172.2.31 raeburn 13923: =item $uname, student's name
1.297 matthew 13924:
1.1172.2.31 raeburn 13925: =item $uid, student's user id
1.297 matthew 13926:
1.1172.2.31 raeburn 13927: =item $first, student's first name
1.297 matthew 13928:
13929: =item $middle
13930:
13931: =item $last
13932:
13933: =item $gene
13934:
13935: =item $usec
13936:
13937: =item $end
13938:
13939: =item $start
13940:
1.957 raeburn 13941: =item $type
13942:
13943: =item $locktype
13944:
13945: =item $cid
13946:
13947: =item $selfenroll
13948:
13949: =item $context
13950:
1.1172.2.19 raeburn 13951: =item $credits, number of credits student will earn from this class
13952:
1.1172.2.76 raeburn 13953: =item $instsec, institutional course section code for student
13954:
1.297 matthew 13955: =back
13956:
1.191 harris41 13957:
13958: =item *
13959:
1.243 albertel 13960: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
13961: custom role; give a custom role to a user for the level given by URL. Specify
13962: name and domain of role author, and role name
1.191 harris41 13963:
13964: =item *
13965:
1.243 albertel 13966: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 13967:
13968: =item *
13969:
1.243 albertel 13970: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
13971:
13972: =back
13973:
13974: =head2 Course Infomation
13975:
13976: =over 4
1.191 harris41 13977:
13978: =item *
13979:
1.1118 foxr 13980: coursedescription($courseid,$options) : returns a hash of information about the
1.631 albertel 13981: specified course id, including all environment settings for the
13982: course, the description of the course will be in the hash under the
13983: key 'description'
1.191 harris41 13984:
1.1118 foxr 13985: $options is an optional parameter that if supplied is a hash reference that controls
13986: what how this function works. It has the following key/values:
13987:
13988: =over 4
13989:
13990: =item freshen_cache
13991:
13992: If defined, and the environment cache for the course is valid, it is
13993: returned in the returned hash.
13994:
13995: =item one_time
13996:
13997: If defined, the last cache time is set to _now_
13998:
13999: =item user
14000:
14001: If defined, the supplied username is used instead of the current user.
14002:
14003:
14004: =back
14005:
1.191 harris41 14006: =item *
14007:
1.624 albertel 14008: resdata($name,$domain,$type,@which) : request for current parameter
14009: setting for a specific $type, where $type is either 'course' or 'user',
14010: @what should be a list of parameters to ask about. This routine caches
1.1172.2.31 raeburn 14011: answers for 10 minutes.
1.243 albertel 14012:
1.877 foxr 14013: =item *
14014:
14015: get_courseresdata($courseid, $domain) : dump the entire course resource
14016: data base, returning a hash that is keyed by the resource name and has
14017: values that are the resource value. I believe that the timestamps and
14018: versions are also returned.
14019:
1.1172.2.31 raeburn 14020: get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
14021: supplemental content area. This routine caches the number of files for
14022: 10 minutes.
14023:
1.243 albertel 14024: =back
14025:
14026: =head2 Course Modification
14027:
14028: =over 4
1.191 harris41 14029:
14030: =item *
14031:
1.243 albertel 14032: writecoursepref($courseid,%prefs) : write preferences (environment
14033: database) for a course
1.191 harris41 14034:
14035: =item *
14036:
1.1011 raeburn 14037: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
14038:
14039: =item *
14040:
1.1038 raeburn 14041: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 14042:
1.1167 droeschl 14043: =item *
14044:
14045: is_course($courseid), is_course($cdom, $cnum)
14046:
14047: Accepts either a combined $courseid (in the form of domain_courseid) or the
14048: two component version $cdom, $cnum. It checks if the specified course exists.
14049:
14050: Returns:
14051: undef if the course doesn't exist, otherwise
14052: in scalar context the combined courseid.
14053: in list context the two components of the course identifier, domain and
14054: courseid.
14055:
1.243 albertel 14056: =back
14057:
14058: =head2 Resource Subroutines
14059:
14060: =over 4
1.191 harris41 14061:
14062: =item *
14063:
1.243 albertel 14064: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 14065:
14066: =item *
14067:
1.243 albertel 14068: repcopy($filename) : subscribes to the requested file, and attempts to
14069: replicate from the owning library server, Might return
1.607 raeburn 14070: 'unavailable', 'not_found', 'forbidden', 'ok', or
14071: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 14072: resource. Expects the local filesystem pathname
14073: (/home/httpd/html/res/....)
14074:
14075: =back
14076:
14077: =head2 Resource Information
14078:
14079: =over 4
1.191 harris41 14080:
14081: =item *
14082:
1.1172.2.28 raeburn 14083: EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
14084: and returns the value of a variety of different possible values,
14085: $varname should be a request string, and the other parameters can be
14086: used to specify who and what one is asking about. Ordinarily, $cid
14087: does not need to be specified, as it is retrived from
14088: $env{'request.course.id'}, but &Apache::lonnet::EXT() is called
14089: within lonuserstate::loadmap() when initializing a course, before
14090: $env{'request.course.id'} has been set, so it needs to be provided
14091: in that one case.
1.243 albertel 14092:
14093: Possible values for $varname are environment.lastname (or other item
14094: from the envirnment hash), user.name (or someother aspect about the
14095: user), resource.0.maxtries (or some other part and parameter of a
14096: resource)
1.204 albertel 14097:
14098: =item *
14099:
1.243 albertel 14100: directcondval($number) : get current value of a condition; reads from a state
14101: string
1.204 albertel 14102:
14103: =item *
14104:
1.243 albertel 14105: condval($condidx) : value of condition index based on state
1.204 albertel 14106:
14107: =item *
14108:
1.243 albertel 14109: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
14110: resource's metadata, $what should be either a specific key, or either
14111: 'keys' (to get a list of possible keys) or 'packages' to get a list of
14112: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
14113:
14114: this function automatically caches all requests
1.191 harris41 14115:
14116: =item *
14117:
1.243 albertel 14118: metadata_query($query,$custom,$customshow) : make a metadata query against the
14119: network of library servers; returns file handle of where SQL and regex results
14120: will be stored for query
1.191 harris41 14121:
14122: =item *
14123:
1.1172.2.66 raeburn 14124: symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :
14125: return symbolic list entry (all arguments optional).
14126:
14127: Args: filename is the filename (including path) for the file for which a symb
14128: is required; donotrecurse, if true will prevent calls to allowed() being made
14129: to check access status if more than one resource was found in the bighash
14130: (see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
14131: a randompick); ignorecachednull, if true will prevent a symb of '' being
14132: returned if $env{$cache_str} is defined as ''; checkforblock if true will
14133: cause possible symbs to be checked to determine if they are subject to content
14134: blocking, if so they will not be included as possible symbs; possibles is a
14135: ref to a hash, which, as a side effect, will be populated with all possible
14136: symbs (content blocking not tested).
14137:
1.243 albertel 14138: returns the data handle
1.191 harris41 14139:
14140: =item *
14141:
1.1172.2.17 raeburn 14142: symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
1.1172.2.11 raeburn 14143: and is a possible symb for the URL in $thisfn, and if is an encrypted
1.582 albertel 14144: resource that the user accessed using /enc/ returns a 1 on success, 0
1.1172.2.11 raeburn 14145: on failure, user must be in a course, as it assumes the existence of
14146: the course initial hash, and uses $env('request.course.id'}. The third
14147: arg is an optional reference to a scalar. If this arg is passed in the
14148: call to symbverify, it will be set to 1 if the symb has been set to be
14149: encrypted; otherwise it will be null.
1.243 albertel 14150:
1.191 harris41 14151: =item *
14152:
1.243 albertel 14153: symbclean($symb) : removes versions numbers from a symb, returns the
14154: cleaned symb
1.191 harris41 14155:
14156: =item *
14157:
1.243 albertel 14158: is_on_map($uri) : checks if the $uri is somewhere on the current
14159: course map, user must be in a course for it to work.
1.191 harris41 14160:
14161: =item *
14162:
1.243 albertel 14163: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 14164:
14165: =item *
14166:
1.243 albertel 14167: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
14168: a random seed, all arguments are optional, if they aren't sent it uses the
14169: environment to derive them. Note: if symb isn't sent and it can't get one
14170: from &symbread it will use the current time as its return value
1.191 harris41 14171:
14172: =item *
14173:
1.243 albertel 14174: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
14175: unfakeable, receipt
1.191 harris41 14176:
14177: =item *
14178:
1.620 albertel 14179: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 14180:
14181: =item *
14182:
1.243 albertel 14183: countacc($url) : count the number of accesses to a given URL
1.191 harris41 14184:
14185: =item *
14186:
1.243 albertel 14187: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 14188:
14189: =item *
14190:
1.243 albertel 14191: checkin($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 $tcrsid)
1.191 harris41 14192:
14193: =item *
14194:
1.243 albertel 14195: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 14196:
14197: =item *
14198:
1.243 albertel 14199: devalidate($symb) : devalidate temporary spreadsheet calculations,
14200: forcing spreadsheet to reevaluate the resource scores next time.
14201:
1.1172.2.13 raeburn 14202: =item *
14203:
14204: can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
14205: when viewing in course context.
14206:
14207: input: six args -- filename (decluttered), course number, course domain,
14208: url, symb (if registered) and group (if this is a
14209: group item -- e.g., bulletin board, group page etc.).
14210:
14211: output: array of five scalars --
14212: $cfile -- url for file editing if editable on current server
14213: $home -- homeserver of resource (i.e., for author if published,
14214: or course if uploaded.).
14215: $switchserver -- 1 if server switch will be needed.
14216: $forceedit -- 1 if icon/link should be to go to edit mode
14217: $forceview -- 1 if icon/link should be to go to view mode
14218:
14219: =item *
14220:
14221: is_course_upload($file,$cnum,$cdom)
14222:
14223: Used in course context to determine if current file was uploaded to
14224: the course (i.e., would be found in /userfiles/docs on the course's
14225: homeserver.
14226:
14227: input: 3 args -- filename (decluttered), course number and course domain.
14228: output: boolean -- 1 if file was uploaded.
14229:
1.243 albertel 14230: =back
14231:
14232: =head2 Storing/Retreiving Data
14233:
14234: =over 4
1.191 harris41 14235:
14236: =item *
14237:
1.1172.2.64 raeburn 14238: store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash
14239: permanently for this url; hashref needs to be given and should be a \%hashname;
14240: the remaining args aren't required and if they aren't passed or are '' they will
14241: be derived from the env (with the exception of $laststore, which is an
14242: optional arg used when a user's submission is stored in grading).
14243: $laststore is $version=$timestamp, where $version is the most recent version
14244: number retrieved for the corresponding $symb in the $namespace db file, and
14245: $timestamp is the timestamp for that transaction (UNIX time).
14246: $laststore is currently only passed when cstore() is called by
14247: structuretags::finalize_storage().
1.191 harris41 14248:
14249: =item *
14250:
1.1172.2.64 raeburn 14251: cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store
14252: but uses critical subroutine
1.191 harris41 14253:
14254: =item *
14255:
1.243 albertel 14256: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
14257: all args are optional
1.191 harris41 14258:
14259: =item *
14260:
1.717 albertel 14261: dumpstore($namespace,$udom,$uname,$regexp,$range) :
14262: dumps the complete (or key matching regexp) namespace into a hash
14263: ($udom, $uname, $regexp, $range are optional) for a namespace that is
14264: normally &store()ed into
14265:
14266: $range should be either an integer '100' (give me the first 100
14267: matching records)
14268: or be two integers sperated by a - with no spaces
14269: '30-50' (give me the 30th through the 50th matching
14270: records)
14271:
14272:
14273: =item *
14274:
1.1172.2.59 raeburn 14275: putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :
1.717 albertel 14276: replaces a &store() version of data with a replacement set of data
14277: for a particular resource in a namespace passed in the $storehash hash
1.1172.2.59 raeburn 14278: reference. If $tolog is true, the transaction is logged in the courselog
14279: with an action=PUTSTORE.
1.717 albertel 14280:
14281: =item *
14282:
1.243 albertel 14283: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
14284: works very similar to store/cstore, but all data is stored in a
14285: temporary location and can be reset using tmpreset, $storehash should
14286: be a hash reference, returns nothing on success
1.191 harris41 14287:
14288: =item *
14289:
1.243 albertel 14290: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
14291: similar to restore, but all data is stored in a temporary location and
14292: can be reset using tmpreset. Returns a hash of values on success,
14293: error string otherwise.
1.191 harris41 14294:
14295: =item *
14296:
1.243 albertel 14297: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
14298: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 14299:
14300: =item *
14301:
1.243 albertel 14302: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
14303: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 14304:
14305: =item *
14306:
1.243 albertel 14307: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
14308: namesp ($udom and $uname are optional)
1.191 harris41 14309:
14310: =item *
14311:
1.702 albertel 14312: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 14313: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 14314: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 14315:
1.702 albertel 14316: $range should be either an integer '100' (give me the first 100
14317: matching records)
14318: or be two integers sperated by a - with no spaces
14319: '30-50' (give me the 30th through the 50th matching
14320: records)
1.449 matthew 14321: =item *
14322:
14323: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
14324: $store can be a scalar, an array reference, or if the amount to be
14325: incremented is > 1, a hash reference.
14326:
14327: ($udom and $uname are optional)
1.191 harris41 14328:
14329: =item *
14330:
1.243 albertel 14331: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
14332: ($udom and $uname are optional)
1.191 harris41 14333:
14334: =item *
14335:
1.243 albertel 14336: cput($namespace,$storehash,$udom,$uname) : critical put
14337: ($udom and $uname are optional)
1.191 harris41 14338:
14339: =item *
14340:
1.748 albertel 14341: newput($namespace,$storehash,$udom,$uname) :
14342:
14343: Attempts to store the items in the $storehash, but only if they don't
14344: currently exist, if this succeeds you can be certain that you have
14345: successfully created a new key value pair in the $namespace db.
14346:
14347:
14348: Args:
14349: $namespace: name of database to store values to
14350: $storehash: hashref to store to the db
14351: $udom: (optional) domain of user containing the db
14352: $uname: (optional) name of user caontaining the db
14353:
14354: Returns:
14355: 'ok' -> succeeded in storing all keys of $storehash
14356: 'key_exists: <key>' -> failed to anything out of $storehash, as at
14357: least <key> already existed in the db (other
14358: requested keys may also already exist)
1.967 bisitz 14359: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 14360: 'con_lost' -> unable to contact request server
14361: 'refused' -> action was not allowed by remote machine
14362:
14363:
14364: =item *
14365:
1.243 albertel 14366: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
14367: reference filled in from namesp (encrypts the return communication)
14368: ($udom and $uname are optional)
1.191 harris41 14369:
14370: =item *
14371:
1.243 albertel 14372: log($udom,$name,$home,$message) : write to permanent log for user; use
14373: critical subroutine
14374:
1.806 raeburn 14375: =item *
14376:
1.860 raeburn 14377: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
14378: array reference filled in from namespace found in domain level on either
14379: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 14380:
14381: =item *
14382:
1.860 raeburn 14383: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
14384: domain level either on specified domain server ($uhome) or primary domain
14385: server ($udom and $uhome are optional)
1.806 raeburn 14386:
1.943 raeburn 14387: =item *
14388:
1.1172.2.35 raeburn 14389: get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
14390: for: authentication, language, quotas, timezone, date locale, and portal URL in
14391: the target domain.
14392:
14393: May also include additional key => value pairs for the following groups:
14394:
14395: =over
14396:
14397: =item
14398: disk quotas (MB allocated by default to portfolios and authoring spaces).
14399:
14400: =over
14401:
14402: =item defaultquota, authorquota
14403:
14404: =back
14405:
14406: =item
14407: tools (availability of aboutme page, blog, webDAV access for authoring spaces,
14408: portfolio for users).
14409:
14410: =over
14411:
14412: =item
14413: aboutme, blog, webdav, portfolio
14414:
14415: =back
14416:
14417: =item
14418: requestcourses: ability to request courses, and how requests are processed.
14419:
14420: =over
14421:
14422: =item
1.1172.2.37 raeburn 14423: official, unofficial, community, textbook
1.1172.2.35 raeburn 14424:
14425: =back
14426:
14427: =item
14428: inststatus: types of institutional affiliation, and order in which they are displayed.
14429:
14430: =over
14431:
14432: =item
1.1172.2.44 raeburn 14433: inststatustypes, inststatusorder, inststatusguest
1.1172.2.35 raeburn 14434:
14435: =back
14436:
14437: =item
14438: coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
14439: for course's uploaded content.
14440:
14441: =over
14442:
14443: =item
1.1172.2.68 raeburn 14444: canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
14445: communityquota, textbookquota
1.1172.2.35 raeburn 14446:
14447: =back
14448:
14449: =item
14450: usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
14451: on your servers.
14452:
14453: =over
14454:
14455: =item
14456: remotesessions, hostedsessions
14457:
14458: =back
14459:
14460: =back
14461:
14462: In cases where a domain coordinator has never used the "Set Domain Configuration"
14463: utility to create a configuration.db file on a domain's primary library server
14464: only the following domain defaults: auth_def, auth_arg_def, lang_def
14465: -- corresponding values are authentication type (internal, krb4, krb5,
14466: or localauth), initial password or a kerberos realm, language (e.g., en-us) --
14467: will be available. Values are retrieved from cache (if current), unless the
14468: optional $ignore_cache arg is true, or from domain's configuration.db (if available),
14469: or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
14470:
14471: Typical usage:
1.943 raeburn 14472:
1.1172.2.35 raeburn 14473: %domdefaults = &get_domain_defaults($target_domain);
1.943 raeburn 14474:
1.243 albertel 14475: =back
14476:
14477: =head2 Network Status Functions
14478:
14479: =over 4
1.191 harris41 14480:
14481: =item *
14482:
1.1137 raeburn 14483: dirlist() : return directory list based on URI (first arg).
14484:
14485: Inputs: 1 required, 5 optional.
14486:
14487: =over
14488:
14489: =item
14490: $uri - path to file in filesystem (starts: /res or /userfiles/). Required.
14491:
14492: =item
14493: $userdomain - domain of user/course to be listed. Extracted from $uri if absent.
14494:
14495: =item
14496: $username - username of user/course to be listed. Extracted from $uri if absent.
14497:
14498: =item
14499: $getpropath - boolean: 1 if prepend path using &propath().
14500:
14501: =item
14502: $getuserdir - boolean: 1 if prepend path for "userfiles".
14503:
14504: =item
14505: $alternateRoot - path to prepend in place of path from $uri.
14506:
14507: =back
14508:
14509: Returns: Array of up to two items.
14510:
14511: =over
14512:
14513: a reference to an array of files/subdirectories
14514:
14515: =over
14516:
14517: Each element in the array of files/subdirectories is a & separated list of
14518: item name and the result of running stat on the item. If dirlist was requested
14519: for a file instead of a directory, the item name will be ''. For a directory
14520: listing, if the item is a metadata file, the element will end &N&M
14521: (where N amd M are either 0 or 1, corresponding to obsolete set (1), or
14522: default copyright set (1).
14523:
14524: =back
14525:
14526: a scalar containing error condition (if encountered).
14527:
14528: =over
14529:
14530: =item
14531: no_host (no homeserver identified for $username:$domain).
14532:
14533: =item
14534: no_such_host (server contacted for listing not identified as valid host).
14535:
14536: =item
14537: con_lost (connection to remote server failed).
14538:
14539: =item
14540: refused (invalid $username:$domain received on lond side).
14541:
14542: =item
14543: no_such_dir (directory at specified path on lond side does not exist).
14544:
14545: =item
14546: empty (directory at specified path on lond side is empty).
14547:
14548: =over
14549:
14550: This is currently not encountered because the &ls3, &ls2,
14551: &ls (_handler) routines on the lond side do not filter out
14552: . and .. from a directory listing.
14553:
14554: =back
14555:
14556: =back
14557:
14558: =back
1.191 harris41 14559:
14560: =item *
14561:
1.243 albertel 14562: spareserver() : find server with least workload from spare.tab
14563:
1.986 foxr 14564:
14565: =item *
14566:
14567: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
14568: if there is no corresponding loncapa host.
14569:
1.243 albertel 14570: =back
14571:
1.986 foxr 14572:
1.243 albertel 14573: =head2 Apache Request
14574:
14575: =over 4
1.191 harris41 14576:
14577: =item *
14578:
1.243 albertel 14579: ssi($url,%hash) : server side include, does a complete request cycle on url to
14580: localhost, posts hash
14581:
14582: =back
14583:
14584: =head2 Data to String to Data
14585:
14586: =over 4
1.191 harris41 14587:
14588: =item *
14589:
1.243 albertel 14590: hash2str(%hash) : convert a hash into a string complete with escaping and '='
14591: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 14592:
14593: =item *
14594:
1.243 albertel 14595: hashref2str($hashref) : convert a hashref into a string complete with
14596: escaping and '=' and '&' separators, supports elements that are
14597: arrayrefs and hashrefs
1.191 harris41 14598:
14599: =item *
14600:
1.243 albertel 14601: arrayref2str($arrayref) : convert an arrayref into a string complete
14602: with escaping and '&' separators, supports elements that are arrayrefs
14603: and hashrefs
1.191 harris41 14604:
14605: =item *
14606:
1.243 albertel 14607: str2hash($string) : convert string to hash using unescaping and
14608: splitting on '=' and '&', supports elements that are arrayrefs and
14609: hashrefs
1.191 harris41 14610:
14611: =item *
14612:
1.243 albertel 14613: str2array($string) : convert string to hash using unescaping and
14614: splitting on '&', supports elements that are arrayrefs and hashrefs
14615:
14616: =back
14617:
14618: =head2 Logging Routines
14619:
14620:
14621: These routines allow one to make log messages in the lonnet.log and
14622: lonnet.perm logfiles.
1.191 harris41 14623:
1.1119 foxr 14624: =over 4
14625:
1.191 harris41 14626: =item *
14627:
1.243 albertel 14628: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 14629:
14630: =item *
14631:
1.243 albertel 14632: logthis() : append message to the normal lonnet.log file, it gets
14633: preiodically rolled over and deleted.
1.191 harris41 14634:
14635: =item *
14636:
1.243 albertel 14637: logperm() : append a permanent message to lonnet.perm.log, this log
14638: file never gets deleted by any automated portion of the system, only
14639: messages of critical importance should go in here.
14640:
1.1119 foxr 14641:
1.243 albertel 14642: =back
14643:
14644: =head2 General File Helper Routines
14645:
14646: =over 4
1.191 harris41 14647:
14648: =item *
14649:
1.481 raeburn 14650: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
14651: (a) files in /uploaded
14652: (i) If a local copy of the file exists -
14653: compares modification date of local copy with last-modified date for
14654: definitive version stored on home server for course. If local copy is
14655: stale, requests a new version from the home server and stores it.
14656: If the original has been removed from the home server, then local copy
14657: is unlinked.
14658: (ii) If local copy does not exist -
14659: requests the file from the home server and stores it.
14660:
14661: If $caller is 'uploadrep':
14662: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
14663: for request for files originally uploaded via DOCS.
14664: - returns 'ok' if fresh local copy now available, -1 otherwise.
14665:
14666: Otherwise:
14667: This indicates a call from the content generation phase of the request.
14668: - returns the entire contents of the file or -1.
14669:
14670: (b) files in /res
14671: - returns the entire contents of a file or -1;
14672: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 14673:
1.712 albertel 14674:
14675: =item *
14676:
14677: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
14678: reference
14679:
14680: returns either a stat() list of data about the file or an empty list
14681: if the file doesn't exist or couldn't find out about it (connection
14682: problems or user unknown)
14683:
1.191 harris41 14684: =item *
14685:
1.243 albertel 14686: filelocation($dir,$file) : returns file system location of a file
14687: based on URI; meant to be "fairly clean" absolute reference, $dir is a
14688: directory that relative $file lookups are to looked in ($dir of /a/dir
14689: and a file of ../bob will become /a/bob)
1.191 harris41 14690:
14691: =item *
14692:
14693: hreflocation($dir,$file) : returns file system location or a URL; same as
14694: filelocation except for hrefs
14695:
14696: =item *
14697:
1.1172.2.49 raeburn 14698: declutter() : declutters URLs -- remove beginning slashes, 'res' etc.
14699: also removes beginning /home/httpd/html unless /priv/ follows it.
1.191 harris41 14700:
1.243 albertel 14701: =back
14702:
1.608 albertel 14703: =head2 Usererfile file routines (/uploaded*)
14704:
14705: =over 4
14706:
14707: =item *
14708:
14709: userfileupload(): main rotine for putting a file in a user or course's
14710: filespace, arguments are,
14711:
1.620 albertel 14712: formname - required - this is the name of the element in $env where the
1.608 albertel 14713: filename, and the contents of the file to create/modifed exist
1.620 albertel 14714: the filename is in $env{'form.'.$formname.'.filename'} and the
14715: contents of the file is located in $env{'form.'.$formname}
1.1090 raeburn 14716: context - if coursedoc, store the file in the course of the active role
14717: of the current user;
14718: if 'existingfile': store in 'overwrites' in /home/httpd/perl/tmp
14719: if 'canceloverwrite': delete file in tmp/overwrites directory
1.608 albertel 14720: subdir - required - subdirectory to put the file in under ../userfiles/
14721: if undefined, it will be placed in "unknown"
14722:
14723: (This routine calls clean_filename() to remove any dangerous
14724: characters from the filename, and then calls finuserfileupload() to
14725: complete the transaction)
14726:
14727: returns either the url of the uploaded file (/uploaded/....) if successful
14728: and /adm/notfound.html if unsuccessful
14729:
14730: =item *
14731:
14732: clean_filename(): routine for cleaing a filename up for storage in
14733: userfile space, argument is:
14734:
14735: filename - proposed filename
14736:
14737: returns: the new clean filename
14738:
14739: =item *
14740:
1.1090 raeburn 14741: finishuserfileupload(): routine that creates and sends the file to
1.608 albertel 14742: userspace, probably shouldn't be called directly
14743:
14744: docuname: username or courseid of destination for the file
14745: docudom: domain of user/course of destination for the file
14746: formname: same as for userfileupload()
1.1090 raeburn 14747: fname: filename (including subdirectories) for the file
14748: parser: if 'parse', will parse (html) file to extract references to objects, links etc.
14749: allfiles: reference to hash used to store objects found by parser
14750: codebase: reference to hash used for codebases of java objects found by parser
14751: thumbwidth: width (pixels) of thumbnail to be created for uploaded image
14752: thumbheight: height (pixels) of thumbnail to be created for uploaded image
14753: resizewidth: width to be used to resize image using resizeImage from ImageMagick
14754: resizeheight: height to be used to resize image using resizeImage from ImageMagick
14755: context: if 'overwrite', will move the uploaded file from its temporary location to
14756: userfiles to facilitate overwriting a previously uploaded file with same name.
1.1095 raeburn 14757: mimetype: reference to scalar to accommodate mime type determined
14758: from File::MMagic if $parser = parse.
1.608 albertel 14759:
14760: returns either the url of the uploaded file (/uploaded/....) if successful
1.1090 raeburn 14761: and /adm/notfound.html if unsuccessful (or an error message if context
14762: was 'overwrite').
14763:
1.608 albertel 14764:
14765: =item *
14766:
14767: renameuserfile(): renames an existing userfile to a new name
14768:
14769: Args:
14770: docuname: username or courseid of destination for the file
14771: docudom: domain of user/course of destination for the file
14772: old: current file name (including any subdirs under userfiles)
14773: new: desired file name (including any subdirs under userfiles)
14774:
14775: =item *
14776:
14777: mkdiruserfile(): creates a directory is a userfiles dir
14778:
14779: Args:
14780: docuname: username or courseid of destination for the file
14781: docudom: domain of user/course of destination for the file
14782: dir: dir to create (including any subdirs under userfiles)
14783:
14784: =item *
14785:
14786: removeuserfile(): removes a file that exists in userfiles
14787:
14788: Args:
14789: docuname: username or courseid of destination for the file
14790: docudom: domain of user/course of destination for the file
14791: fname: filname to delete (including any subdirs under userfiles)
14792:
14793: =item *
14794:
14795: removeuploadedurl(): convience function for removeuserfile()
14796:
14797: Args:
14798: url: a full /uploaded/... url to delete
14799:
1.747 albertel 14800: =item *
14801:
14802: get_portfile_permissions():
14803: Args:
14804: domain: domain of user or course contain the portfolio files
14805: user: name of user or num of course contain the portfolio files
14806: Returns:
14807: hashref of a dump of the proper file_permissions.db
14808:
14809:
14810: =item *
14811:
14812: get_access_controls():
14813:
14814: Args:
14815: current_permissions: the hash ref returned from get_portfile_permissions()
14816: group: (optional) the group you want the files associated with
14817: file: (optional) the file you want access info on
14818:
14819: Returns:
1.749 raeburn 14820: a hash (keys are file names) of hashes containing
14821: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
14822: values are XML containing access control settings (see below)
1.747 albertel 14823:
14824: Internal notes:
14825:
1.749 raeburn 14826: access controls are stored in file_permissions.db as key=value pairs.
14827: key -> path to file/file_name\0uniqueID:scope_end_start
14828: where scope -> public,guest,course,group,domains or users.
14829: end -> UNIX time for end of access (0 -> no end date)
14830: start -> UNIX time for start of access
14831:
14832: value -> XML description of access control
14833: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
14834: <start></start>
14835: <end></end>
14836:
14837: <password></password> for scope type = guest
14838:
14839: <domain></domain> for scope type = course or group
14840: <number></number>
14841: <roles id="">
14842: <role></role>
14843: <access></access>
14844: <section></section>
14845: <group></group>
14846: </roles>
14847:
14848: <dom></dom> for scope type = domains
14849:
14850: <users> for scope type = users
14851: <user>
14852: <uname></uname>
14853: <udom></udom>
14854: </user>
14855: </users>
14856: </scope>
14857:
14858: Access data is also aggregated for each file in an additional key=value pair:
14859: key -> path to file/file_name\0accesscontrol
14860: value -> reference to hash
14861: hash contains key = value pairs
14862: where key = uniqueID:scope_end_start
14863: value = UNIX time record was last updated
14864:
14865: Used to improve speed of look-ups of access controls for each file.
14866:
14867: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
14868:
1.1172.2.13 raeburn 14869: =item *
14870:
1.749 raeburn 14871: modify_access_controls():
14872:
14873: Modifies access controls for a portfolio file
14874: Args
14875: 1. file name
14876: 2. reference to hash of required changes,
14877: 3. domain
14878: 4. username
14879: where domain,username are the domain of the portfolio owner
14880: (either a user or a course)
14881:
14882: Returns:
14883: 1. result of additions or updates ('ok' or 'error', with error message).
14884: 2. result of deletions ('ok' or 'error', with error message).
14885: 3. reference to hash of any new or updated access controls.
14886: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
14887: key = integer (inbound ID)
1.1172.2.13 raeburn 14888: value = uniqueID
14889:
14890: =item *
14891:
14892: get_timebased_id():
14893:
14894: Attempts to get a unique timestamp-based suffix for use with items added to a
14895: course via the Course Editor (e.g., folders, composite pages,
14896: group bulletin boards).
14897:
14898: Args: (first three required; six others optional)
14899:
14900: 1. prefix (alphanumeric): of keys in hash, e.g., suppsequence, docspage,
14901: docssequence, or name of group
14902:
14903: 2. keyid (alphanumeric): name of temporary locking key in hash,
14904: e.g., num, boardids
14905:
14906: 3. namespace: name of gdbm file used to store suffixes already assigned;
14907: file will be named nohist_namespace.db
14908:
14909: 4. cdom: domain of course; default is current course domain from %env
14910:
14911: 5. cnum: course number; default is current course number from %env
14912:
14913: 6. idtype: set to concat if an additional digit is to be appended to the
14914: unix timestamp to form the suffix, if the plain timestamp is already
14915: in use. Default is to not do this, but simply increment the unix
14916: timestamp by 1 until a unique key is obtained.
14917:
14918: 7. who: holder of locking key; defaults to user:domain for user.
14919:
14920: 8. locktries: number of attempts to obtain a lock (sleep of 1s before
14921: retrying); default is 3.
14922:
14923: 9. maxtries: number of attempts to obtain a unique suffix; default is 20.
14924:
14925: Returns:
14926:
14927: 1. suffix obtained (numeric)
14928:
14929: 2. result of deleting locking key (ok if deleted, or lock never obtained)
14930:
14931: 3. error: contains (localized) error message if an error occurred.
14932:
1.747 albertel 14933:
1.608 albertel 14934: =back
14935:
1.243 albertel 14936: =head2 HTTP Helper Routines
14937:
14938: =over 4
14939:
1.191 harris41 14940: =item *
14941:
14942: escape() : unpack non-word characters into CGI-compatible hex codes
14943:
14944: =item *
14945:
14946: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
14947:
1.243 albertel 14948: =back
14949:
14950: =head1 PRIVATE SUBROUTINES
14951:
14952: =head2 Underlying communication routines (Shouldn't call)
14953:
14954: =over 4
14955:
14956: =item *
14957:
14958: subreply() : tries to pass a message to lonc, returns con_lost if incapable
14959:
14960: =item *
14961:
14962: reply() : uses subreply to send a message to remote machine, logs all failures
14963:
14964: =item *
14965:
14966: critical() : passes a critical message to another server; if cannot
14967: get through then place message in connection buffer directory and
14968: returns con_delayed, if incapable of saving message, returns
14969: con_failed
14970:
14971: =item *
14972:
14973: reconlonc() : tries to reconnect lonc client processes.
14974:
14975: =back
14976:
14977: =head2 Resource Access Logging
14978:
14979: =over 4
14980:
14981: =item *
14982:
14983: flushcourselogs() : flush (save) buffer logs and access logs
14984:
14985: =item *
14986:
14987: courselog($what) : save message for course in hash
14988:
14989: =item *
14990:
14991: courseacclog($what) : save message for course using &courselog(). Perform
14992: special processing for specific resource types (problems, exams, quizzes, etc).
14993:
1.191 harris41 14994: =item *
14995:
14996: goodbye() : flush course logs and log shutting down; it is called in srm.conf
14997: as a PerlChildExitHandler
1.243 albertel 14998:
14999: =back
15000:
15001: =head2 Other
15002:
15003: =over 4
15004:
15005: =item *
15006:
15007: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 15008:
15009: =back
15010:
15011: =cut
1.877 foxr 15012:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonnet.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / lonnet / perl