Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1085
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1085 ! raeburn 4: # $Id: lonnet.pm,v 1.1084 2010/09/24 03:15:04 raeburn Exp $
1.178 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 32: =head1 NAME
33:
34: Apache::lonnet.pm
35:
36: =head1 SYNOPSIS
37:
38: This file is an interface to the lonc processes of
39: the LON-CAPA network as well as set of elaborated functions for handling information
40: necessary for navigating through a given cluster of LON-CAPA machines within a
41: domain. There are over 40 specialized functions in this module which handle the
42: reading and transmission of metadata, user information (ids, names, environments, roles,
43: logs), file information (storage, reading, directories, extensions, replication, embedded
44: styles and descriptors), educational resources (course descriptions, section names and
45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
46: and from more descriptive phrases or explanations.
47:
48: This is part of the LearningOnline Network with CAPA project
49: described at http://www.lon-capa.org.
50:
1.971 jms 51: =head1 Package Variables
52:
53: These are largely undocumented, so if you decipher one please note it here.
54:
55: =over 4
56:
57: =item $processmarker
58:
59: Contains the time this process was started and this servers host id.
60:
61: =item $dumpcount
62:
63: Counts the number of times a message log flush has been attempted (regardless
64: of success) by this process. Used as part of the filename when messages are
65: delayed.
66:
67: =back
68:
69: =cut
70:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.871 albertel 78: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.1079 raeburn 79: $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease);
1.871 albertel 80:
81: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
82: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
83: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 84: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 85:
1.1 albertel 86: use IO::Socket;
1.31 www 87: use GDBM_File;
1.208 albertel 88: use HTML::LCParser;
1.88 www 89: use Fcntl qw(:flock);
1.870 albertel 90: use Storable qw(thaw nfreeze);
1.539 albertel 91: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 92: use Cache::Memcached;
1.676 albertel 93: use Digest::MD5;
1.790 albertel 94: use Math::Random;
1.1024 raeburn 95: use File::MMagic;
1.807 albertel 96: use LONCAPA qw(:DEFAULT :match);
1.740 www 97: use LONCAPA::Configuration;
1.676 albertel 98:
1.195 www 99: my $readit;
1.550 foxr 100: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 101:
1.619 albertel 102: require Exporter;
103:
104: our @ISA = qw (Exporter);
105: our @EXPORT = qw(%env);
106:
1.449 matthew 107:
1.1 albertel 108: # --------------------------------------------------------------------- Logging
1.729 www 109: {
110: my $logid;
111: sub instructor_log {
1.957 raeburn 112: my ($hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
113: if (($cnum eq '') || ($cdom eq '')) {
114: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
115: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
116: }
1.729 www 117: $logid++;
1.957 raeburn 118: my $now = time();
119: my $id=$now.'00000'.$$.'00000'.$logid;
1.729 www 120: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 121: { $id => {
122: 'exe_uname' => $env{'user.name'},
123: 'exe_udom' => $env{'user.domain'},
1.957 raeburn 124: 'exe_time' => $now,
1.730 www 125: 'exe_ip' => $ENV{'REMOTE_ADDR'},
126: 'delflag' => $delflag,
127: 'logentry' => $storehash,
128: 'uname' => $uname,
129: 'udom' => $udom,
130: }
1.957 raeburn 131: },$cdom,$cnum);
1.729 www 132: }
133: }
1.1 albertel 134:
1.163 harris41 135: sub logtouch {
136: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 137: unless (-e "$execdir/logs/lonnet.log") {
138: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 139: close $fh;
140: }
141: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
142: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
143: }
144:
1.1 albertel 145: sub logthis {
146: my $message=shift;
147: my $execdir=$perlvar{'lonDaemons'};
148: my $now=time;
149: my $local=localtime($now);
1.448 albertel 150: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 151: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
152: print $fh $logstring;
1.448 albertel 153: close($fh);
154: }
1.1 albertel 155: return 1;
156: }
157:
158: sub logperm {
159: my $message=shift;
160: my $execdir=$perlvar{'lonDaemons'};
161: my $now=time;
162: my $local=localtime($now);
1.448 albertel 163: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
164: print $fh "$now:$message:$local\n";
165: close($fh);
166: }
1.1 albertel 167: return 1;
168: }
169:
1.850 albertel 170: sub create_connection {
1.853 albertel 171: my ($hostname,$lonid) = @_;
1.851 albertel 172: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 173: Type => SOCK_STREAM,
174: Timeout => 10);
175: return 0 if (!$client);
1.890 albertel 176: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 177: my $result = <$client>;
178: chomp($result);
179: return 1 if ($result eq 'done');
180: return 0;
181: }
182:
1.983 raeburn 183: sub get_server_timezone {
184: my ($cnum,$cdom) = @_;
185: my $home=&homeserver($cnum,$cdom);
186: if ($home ne 'no_host') {
187: my $cachetime = 24*3600;
188: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
189: if (defined($cached)) {
190: return $timezone;
191: } else {
192: my $timezone = &reply('servertimezone',$home);
193: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
194: }
195: }
196: }
1.850 albertel 197:
1.993 raeburn 198: sub get_server_loncaparev {
1.1073 raeburn 199: my ($dom,$lonhost,$ignore_cache,$caller) = @_;
1.993 raeburn 200: if (defined($lonhost)) {
201: if (!defined(&hostname($lonhost))) {
202: undef($lonhost);
203: }
204: }
205: if (!defined($lonhost)) {
206: if (defined(&domain($dom,'primary'))) {
207: $lonhost=&domain($dom,'primary');
208: if ($lonhost eq 'no_host') {
209: undef($lonhost);
210: }
211: }
212: }
213: if (defined($lonhost)) {
1.1073 raeburn 214: my $cachetime = 12*3600;
215: if (!$ignore_cache) {
216: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
217: if (defined($cached)) {
218: return $loncaparev;
219: }
220: }
221: my ($answer,$loncaparev);
222: my @ids=¤t_machine_ids();
223: if (grep(/^\Q$lonhost\E$/,@ids)) {
224: $answer = $perlvar{'lonVersion'};
1.1081 raeburn 225: if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 226: $loncaparev = $1;
227: }
228: } else {
229: $answer = &reply('serverloncaparev',$lonhost);
230: if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
231: if ($caller eq 'loncron') {
232: my $ua=new LWP::UserAgent;
1.1082 raeburn 233: $ua->timeout(4);
1.1073 raeburn 234: my $protocol = $protocol{$lonhost};
235: $protocol = 'http' if ($protocol ne 'https');
236: my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
237: my $request=new HTTP::Request('GET',$url);
238: my $response=$ua->request($request);
239: unless ($response->is_error()) {
240: my $content = $response->content;
1.1081 raeburn 241: if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
1.1073 raeburn 242: $loncaparev = $1;
243: }
244: }
245: } else {
246: $loncaparev = $loncaparevs{$lonhost};
247: }
1.1081 raeburn 248: } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
1.1073 raeburn 249: $loncaparev = $1;
250: }
1.993 raeburn 251: }
1.1073 raeburn 252: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
1.993 raeburn 253: }
254: }
255:
1.1074 raeburn 256: sub get_server_homeID {
257: my ($hostname,$ignore_cache,$caller) = @_;
258: unless ($ignore_cache) {
259: my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
260: if (defined($cached)) {
261: return $serverhomeID;
262: }
263: }
264: my $cachetime = 12*3600;
265: my $serverhomeID;
266: if ($caller eq 'loncron') {
267: my @machine_ids = &machine_ids($hostname);
268: foreach my $id (@machine_ids) {
269: my $response = &reply('serverhomeID',$id);
270: unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
271: $serverhomeID = $response;
272: last;
273: }
274: }
275: if ($serverhomeID eq '') {
276: $serverhomeID = $machine_ids[-1];
277: }
278: } else {
279: $serverhomeID = $serverhomeIDs{$hostname};
280: }
281: return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
282: }
283:
1.1 albertel 284: # -------------------------------------------------- Non-critical communication
285: sub subreply {
286: my ($cmd,$server)=@_;
1.838 albertel 287: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 288: #
289: # With loncnew process trimming, there's a timing hole between lonc server
290: # process exit and the master server picking up the listen on the AF_UNIX
291: # socket. In that time interval, a lock file will exist:
292:
293: my $lockfile=$peerfile.".lock";
294: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
295: sleep(1);
296: }
297: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 298: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 299: #
1.550 foxr 300: # We'll give the connection a few tries before abandoning it. If
301: # connection is not possible, we'll con_lost back to the client.
302: #
303: my $client;
304: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
305: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
306: Type => SOCK_STREAM,
307: Timeout => 10);
1.869 albertel 308: if ($client) {
1.550 foxr 309: last; # Connected!
1.850 albertel 310: } else {
1.853 albertel 311: &create_connection(&hostname($server),$server);
1.550 foxr 312: }
1.850 albertel 313: sleep(1); # Try again later if failed connection.
1.550 foxr 314: }
315: my $answer;
316: if ($client) {
1.704 albertel 317: print $client "sethost:$server:$cmd\n";
1.550 foxr 318: $answer=<$client>;
319: if (!$answer) { $answer="con_lost"; }
320: chomp($answer);
321: } else {
322: $answer = 'con_lost'; # Failed connection.
323: }
1.1 albertel 324: return $answer;
325: }
326:
327: sub reply {
328: my ($cmd,$server)=@_;
1.838 albertel 329: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 330: my $answer=subreply($cmd,$server);
1.65 www 331: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 332: &logthis("<font color=\"blue\">WARNING:".
1.12 www 333: " $cmd to $server returned $answer</font>");
334: }
1.1 albertel 335: return $answer;
336: }
337:
338: # ----------------------------------------------------------- Send USR1 to lonc
339:
340: sub reconlonc {
1.891 albertel 341: my ($lonid) = @_;
342: my $hostname = &hostname($lonid);
343: if ($lonid) {
344: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
345: if ($hostname && -e $peerfile) {
346: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
347: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
348: Type => SOCK_STREAM,
349: Timeout => 10);
350: if ($client) {
351: print $client ("reset_retries\n");
352: my $answer=<$client>;
353: #reset just this one.
354: }
355: }
356: return;
357: }
358:
1.836 www 359: &logthis("Trying to reconnect lonc");
1.1 albertel 360: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 361: if (open(my $fh,"<$loncfile")) {
1.1 albertel 362: my $loncpid=<$fh>;
363: chomp($loncpid);
364: if (kill 0 => $loncpid) {
365: &logthis("lonc at pid $loncpid responding, sending USR1");
366: kill USR1 => $loncpid;
367: sleep 1;
1.836 www 368: } else {
1.12 www 369: &logthis(
1.672 albertel 370: "<font color=\"blue\">WARNING:".
1.12 www 371: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 372: }
373: } else {
1.836 www 374: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 375: }
376: }
377:
378: # ------------------------------------------------------ Critical communication
1.12 www 379:
1.1 albertel 380: sub critical {
381: my ($cmd,$server)=@_;
1.838 albertel 382: unless (&hostname($server)) {
1.672 albertel 383: &logthis("<font color=\"blue\">WARNING:".
1.89 www 384: " Critical message to unknown server ($server)</font>");
385: return 'no_such_host';
386: }
1.1 albertel 387: my $answer=reply($cmd,$server);
388: if ($answer eq 'con_lost') {
389: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 390: my $answer=reply($cmd,$server);
1.1 albertel 391: if ($answer eq 'con_lost') {
392: my $now=time;
393: my $middlename=$cmd;
1.5 www 394: $middlename=substr($middlename,0,16);
1.1 albertel 395: $middlename=~s/\W//g;
396: my $dfilename=
1.305 www 397: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
398: $dumpcount++;
1.1 albertel 399: {
1.448 albertel 400: my $dfh;
401: if (open($dfh,">$dfilename")) {
402: print $dfh "$cmd\n";
403: close($dfh);
404: }
1.1 albertel 405: }
406: sleep 2;
407: my $wcmd='';
408: {
1.448 albertel 409: my $dfh;
410: if (open($dfh,"<$dfilename")) {
411: $wcmd=<$dfh>;
412: close($dfh);
413: }
1.1 albertel 414: }
415: chomp($wcmd);
1.7 www 416: if ($wcmd eq $cmd) {
1.672 albertel 417: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 418: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 419: &logperm("D:$server:$cmd");
420: return 'con_delayed';
421: } else {
1.672 albertel 422: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 423: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 424: &logperm("F:$server:$cmd");
425: return 'con_failed';
426: }
427: }
428: }
429: return $answer;
1.405 albertel 430: }
431:
1.755 albertel 432: # ------------------------------------------- check if return value is an error
433:
434: sub error {
435: my ($result) = @_;
1.756 albertel 436: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 437: if ($2 == 2) { return undef; }
438: return $1;
439: }
440: return undef;
441: }
442:
1.783 albertel 443: sub convert_and_load_session_env {
444: my ($lonidsdir,$handle)=@_;
445: my @profile;
446: {
1.917 albertel 447: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
448: if (!$opened) {
1.915 albertel 449: return 0;
450: }
1.783 albertel 451: flock($idf,LOCK_SH);
452: @profile=<$idf>;
453: close($idf);
454: }
455: my %temp_env;
456: foreach my $line (@profile) {
1.786 albertel 457: if ($line !~ m/=/) {
458: return 0;
459: }
1.783 albertel 460: chomp($line);
461: my ($envname,$envvalue)=split(/=/,$line,2);
462: $temp_env{&unescape($envname)} = &unescape($envvalue);
463: }
464: unlink("$lonidsdir/$handle.id");
465: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
466: 0640)) {
467: %disk_env = %temp_env;
468: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
469: untie(%disk_env);
470: }
1.786 albertel 471: return 1;
1.783 albertel 472: }
473:
1.374 www 474: # ------------------------------------------- Transfer profile into environment
1.780 albertel 475: my $env_loaded;
476: sub transfer_profile_to_env {
1.788 albertel 477: my ($lonidsdir,$handle,$force_transfer) = @_;
478: if (!$force_transfer && $env_loaded) { return; }
1.374 www 479:
1.720 albertel 480: if (!defined($lonidsdir)) {
481: $lonidsdir = $perlvar{'lonIDsDir'};
482: }
483: if (!defined($handle)) {
484: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
485: }
486:
1.786 albertel 487: my $convert;
488: {
1.917 albertel 489: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
490: if (!$opened) {
1.915 albertel 491: return;
492: }
1.786 albertel 493: flock($idf,LOCK_SH);
494: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
495: &GDBM_READER(),0640)) {
496: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
497: untie(%disk_env);
498: } else {
499: $convert = 1;
500: }
501: }
502: if ($convert) {
503: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
504: &logthis("Failed to load session, or convert session.");
505: }
1.374 www 506: }
1.783 albertel 507:
1.786 albertel 508: my %remove;
1.783 albertel 509: while ( my $envname = each(%env) ) {
1.433 matthew 510: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
511: if ($time < time-300) {
1.783 albertel 512: $remove{$key}++;
1.433 matthew 513: }
514: }
515: }
1.783 albertel 516:
1.619 albertel 517: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 518: $env_loaded=1;
1.783 albertel 519: foreach my $expired_key (keys(%remove)) {
1.433 matthew 520: &delenv($expired_key);
1.374 www 521: }
1.1 albertel 522: }
523:
1.916 albertel 524: # ---------------------------------------------------- Check for valid session
525: sub check_for_valid_session {
526: my ($r) = @_;
527: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
528: my $lonid=$cookies{'lonID'};
529: return undef if (!$lonid);
530:
531: my $handle=&LONCAPA::clean_handle($lonid->value);
532: my $lonidsdir=$r->dir_config('lonIDsDir');
533: return undef if (!-e "$lonidsdir/$handle.id");
534:
1.917 albertel 535: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
536: return undef if (!$opened);
1.916 albertel 537:
538: flock($idf,LOCK_SH);
539: my %disk_env;
540: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
541: &GDBM_READER(),0640)) {
542: return undef;
543: }
544:
545: if (!defined($disk_env{'user.name'})
546: || !defined($disk_env{'user.domain'})) {
547: return undef;
548: }
549: return $handle;
550: }
551:
1.830 albertel 552: sub timed_flock {
553: my ($file,$lock_type) = @_;
554: my $failed=0;
555: eval {
556: local $SIG{__DIE__}='DEFAULT';
557: local $SIG{ALRM}=sub {
558: $failed=1;
559: die("failed lock");
560: };
561: alarm(13);
562: flock($file,$lock_type);
563: alarm(0);
564: };
565: if ($failed) {
566: return undef;
567: } else {
568: return 1;
569: }
570: }
571:
1.5 www 572: # ---------------------------------------------------------- Append Environment
573:
574: sub appenv {
1.949 raeburn 575: my ($newenv,$roles) = @_;
576: if (ref($newenv) eq 'HASH') {
577: foreach my $key (keys(%{$newenv})) {
578: my $refused = 0;
579: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
580: $refused = 1;
581: if (ref($roles) eq 'ARRAY') {
582: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
583: if (grep(/^\Q$role\E$/,@{$roles})) {
584: $refused = 0;
585: }
586: }
587: }
588: if ($refused) {
589: &logthis("<font color=\"blue\">WARNING: ".
590: "Attempt to modify environment ".$key." to ".$newenv->{$key}
591: .'</font>');
592: delete($newenv->{$key});
593: } else {
594: $env{$key}=$newenv->{$key};
595: }
596: }
597: my $opened = open(my $env_file,'+<',$env{'user.environment'});
598: if ($opened
599: && &timed_flock($env_file,LOCK_EX)
600: &&
601: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
602: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
603: while (my ($key,$value) = each(%{$newenv})) {
604: $disk_env{$key} = $value;
605: }
606: untie(%disk_env);
1.35 www 607: }
1.191 harris41 608: }
1.56 www 609: return 'ok';
610: }
611: # ----------------------------------------------------- Delete from Environment
612:
613: sub delenv {
1.987 raeburn 614: my ($delthis,$regexp) = @_;
1.56 www 615: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 616: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 617: "Attempt to delete from environment ".$delthis);
618: return 'error';
619: }
1.917 albertel 620: my $opened = open(my $env_file,'+<',$env{'user.environment'});
621: if ($opened
1.915 albertel 622: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 623: &&
624: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
625: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 626: foreach my $key (keys(%disk_env)) {
1.987 raeburn 627: if ($regexp) {
628: if ($key=~/^$delthis/) {
629: delete($env{$key});
630: delete($disk_env{$key});
631: }
632: } else {
633: if ($key=~/^\Q$delthis\E/) {
634: delete($env{$key});
635: delete($disk_env{$key});
636: }
637: }
1.448 albertel 638: }
1.783 albertel 639: untie(%disk_env);
1.5 www 640: }
641: return 'ok';
1.369 albertel 642: }
643:
1.790 albertel 644: sub get_env_multiple {
645: my ($name) = @_;
646: my @values;
647: if (defined($env{$name})) {
648: # exists is it an array
649: if (ref($env{$name})) {
650: @values=@{ $env{$name} };
651: } else {
652: $values[0]=$env{$name};
653: }
654: }
655: return(@values);
656: }
657:
1.958 www 658: # ------------------------------------------------------------------- Locking
659:
660: sub set_lock {
661: my ($text)=@_;
662: $locknum++;
663: my $id=$$.'-'.$locknum;
664: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
665: 'session.lock.'.$id => $text});
666: return $id;
667: }
668:
669: sub get_locks {
670: my $num=0;
671: my %texts=();
672: foreach my $lock (split(/\,/,$env{'session.locks'})) {
673: if ($lock=~/\w/) {
674: $num++;
675: $texts{$lock}=$env{'session.lock.'.$lock};
676: }
677: }
678: return ($num,%texts);
679: }
680:
681: sub remove_lock {
682: my ($id)=@_;
683: my $newlocks='';
684: foreach my $lock (split(/\,/,$env{'session.locks'})) {
685: if (($lock=~/\w/) && ($lock ne $id)) {
686: $newlocks.=','.$lock;
687: }
688: }
689: &appenv({'session.locks' => $newlocks});
690: &delenv('session.lock.'.$id);
691: }
692:
693: sub remove_all_locks {
694: my $activelocks=$env{'session.locks'};
695: foreach my $lock (split(/\,/,$env{'session.locks'})) {
696: if ($lock=~/\w/) {
697: &remove_lock($lock);
698: }
699: }
700: }
701:
702:
1.369 albertel 703: # ------------------------------------------ Find out current server userload
704: sub userload {
705: my $numusers=0;
706: {
707: opendir(LONIDS,$perlvar{'lonIDsDir'});
708: my $filename;
709: my $curtime=time;
710: while ($filename=readdir(LONIDS)) {
1.925 albertel 711: next if ($filename eq '.' || $filename eq '..');
712: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 713: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 714: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 715: }
716: closedir(LONIDS);
717: }
718: my $userloadpercent=0;
719: my $maxuserload=$perlvar{'lonUserLoadLim'};
720: if ($maxuserload) {
1.371 albertel 721: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 722: }
1.372 albertel 723: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 724: return $userloadpercent;
1.283 www 725: }
726:
1.1 albertel 727: # ------------------------------ Find server with least workload from spare.tab
1.11 www 728:
1.1 albertel 729: sub spareserver {
1.1083 raeburn 730: my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
1.784 albertel 731: my $spare_server;
1.370 albertel 732: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 733: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
734: : $userloadpercent;
1.1083 raeburn 735: my ($uint_dom,$remotesessions);
736: if (($udom ne '') && (&domain($udom) ne '')) {
737: my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
738: $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
739: my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
740: $remotesessions = $udomdefaults{'remotesessions'};
741: }
1.784 albertel 742: foreach my $try_server (@{ $spareid{'primary'} }) {
1.1083 raeburn 743: if ($uint_dom) {
744: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
745: $try_server));
746: }
1.784 albertel 747: ($spare_server, $lowest_load) =
748: &compare_server_load($try_server, $spare_server, $lowest_load);
749: }
750:
751: my $found_server = ($spare_server ne '' && $lowest_load < 100);
752:
753: if (!$found_server) {
754: foreach my $try_server (@{ $spareid{'default'} }) {
1.1083 raeburn 755: if ($uint_dom) {
756: next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
757: $try_server));
758: }
1.784 albertel 759: ($spare_server, $lowest_load) =
760: &compare_server_load($try_server, $spare_server, $lowest_load);
761: }
762: }
763:
764: if (!$want_server_name) {
1.968 raeburn 765: my $protocol = 'http';
766: if ($protocol{$spare_server} eq 'https') {
767: $protocol = $protocol{$spare_server};
768: }
1.1001 raeburn 769: if (defined($spare_server)) {
770: my $hostname = &hostname($spare_server);
1.1083 raeburn 771: if (defined($hostname)) {
1.1001 raeburn 772: $spare_server = $protocol.'://'.$hostname;
773: }
774: }
1.784 albertel 775: }
776: return $spare_server;
777: }
778:
779: sub compare_server_load {
780: my ($try_server, $spare_server, $lowest_load) = @_;
781:
782: my $loadans = &reply('load', $try_server);
783: my $userloadans = &reply('userload',$try_server);
784:
785: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
1.1072 www 786: return; #didn't get a number from the server
1.784 albertel 787: }
788:
789: my $load;
790: if ($loadans =~ /\d/) {
791: if ($userloadans =~ /\d/) {
792: #both are numbers, pick the bigger one
793: $load = ($loadans > $userloadans) ? $loadans
794: : $userloadans;
1.411 albertel 795: } else {
1.784 albertel 796: $load = $loadans;
1.411 albertel 797: }
1.784 albertel 798: } else {
799: $load = $userloadans;
800: }
801:
802: if (($load =~ /\d/) && ($load < $lowest_load)) {
803: $spare_server = $try_server;
804: $lowest_load = $load;
1.370 albertel 805: }
1.784 albertel 806: return ($spare_server,$lowest_load);
1.202 matthew 807: }
1.914 albertel 808:
809: # --------------------------- ask offload servers if user already has a session
810: sub find_existing_session {
811: my ($udom,$uname) = @_;
812: foreach my $try_server (@{ $spareid{'primary'} },
813: @{ $spareid{'default'} }) {
814: return $try_server if (&has_user_session($try_server, $udom, $uname));
815: }
816: return;
817: }
818:
819: # -------------------------------- ask if server already has a session for user
820: sub has_user_session {
821: my ($lonid,$udom,$uname) = @_;
822: my $result = &reply(join(':','userhassession',
823: map {&escape($_)} ($udom,$uname)),$lonid);
824: return 1 if ($result eq 'ok');
825:
826: return 0;
827: }
828:
1.1076 raeburn 829: # --------- determine least loaded server in a user's domain which allows login
830:
831: sub choose_server {
832: my ($udom) = @_;
833: my %domconfhash = &Apache::loncommon::get_domainconf($udom);
1.1077 raeburn 834: my %servers = &get_servers($udom);
1.1076 raeburn 835: my $lowest_load = 30000;
836: my ($login_host,$hostname);
837: foreach my $lonhost (keys(%servers)) {
838: my $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
839: if ($loginvia eq '') {
840: ($login_host, $lowest_load) =
841: &compare_server_load($lonhost, $login_host, $lowest_load);
842: }
843: }
844: if ($login_host ne '') {
845: $hostname = $servers{$login_host};
846: }
847: return ($login_host,$hostname);
848: }
849:
1.202 matthew 850: # --------------------------------------------- Try to change a user's password
851:
852: sub changepass {
1.799 raeburn 853: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 854: $currentpass = &escape($currentpass);
855: $newpass = &escape($newpass);
1.1030 raeburn 856: my $lonhost = $perlvar{'lonHostID'};
857: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 858: $server);
859: if (! $answer) {
860: &logthis("No reply on password change request to $server ".
861: "by $uname in domain $udom.");
862: } elsif ($answer =~ "^ok") {
863: &logthis("$uname in $udom successfully changed their password ".
864: "on $server.");
865: } elsif ($answer =~ "^pwchange_failure") {
866: &logthis("$uname in $udom was unable to change their password ".
867: "on $server. The action was blocked by either lcpasswd ".
868: "or pwchange");
869: } elsif ($answer =~ "^non_authorized") {
870: &logthis("$uname in $udom did not get their password correct when ".
871: "attempting to change it on $server.");
872: } elsif ($answer =~ "^auth_mode_error") {
873: &logthis("$uname in $udom attempted to change their password despite ".
874: "not being locally or internally authenticated on $server.");
875: } elsif ($answer =~ "^unknown_user") {
876: &logthis("$uname in $udom attempted to change their password ".
877: "on $server but were unable to because $server is not ".
878: "their home server.");
879: } elsif ($answer =~ "^refused") {
880: &logthis("$server refused to change $uname in $udom password because ".
881: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 882: } elsif ($answer =~ "invalid_client") {
883: &logthis("$server refused to change $uname in $udom password because ".
884: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 885: }
886: return $answer;
1.1 albertel 887: }
888:
1.169 harris41 889: # ----------------------- Try to determine user's current authentication scheme
890:
891: sub queryauthenticate {
892: my ($uname,$udom)=@_;
1.456 albertel 893: my $uhome=&homeserver($uname,$udom);
894: if (!$uhome) {
895: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
896: return 'no_host';
897: }
898: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
899: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
900: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 901: }
1.456 albertel 902: return $answer;
1.169 harris41 903: }
904:
1.1 albertel 905: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 906:
1.1 albertel 907: sub authenticate {
1.1073 raeburn 908: my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
1.807 albertel 909: $upass=&escape($upass);
910: $uname= &LONCAPA::clean_username($uname);
1.836 www 911: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 912: my $newhome;
1.836 www 913: if ((!$uhome) || ($uhome eq 'no_host')) {
914: # Maybe the machine was offline and only re-appeared again recently?
915: &reconlonc();
916: # One more
1.952 raeburn 917: $uhome=&homeserver($uname,$udom,1);
918: if (($uhome eq 'no_host') && $checkdefauth) {
919: if (defined(&domain($udom,'primary'))) {
920: $newhome=&domain($udom,'primary');
921: }
922: if ($newhome ne '') {
923: $uhome = $newhome;
924: }
925: }
1.836 www 926: if ((!$uhome) || ($uhome eq 'no_host')) {
927: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 928: return 'no_host';
929: }
1.1 albertel 930: }
1.1073 raeburn 931: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
1.471 albertel 932: if ($answer eq 'authorized') {
1.952 raeburn 933: if ($newhome) {
934: &logthis("User $uname at $udom authorized by $uhome, but needs account");
935: return 'no_account_on_host';
936: } else {
937: &logthis("User $uname at $udom authorized by $uhome");
938: return $uhome;
939: }
1.471 albertel 940: }
941: if ($answer eq 'non_authorized') {
942: &logthis("User $uname at $udom rejected by $uhome");
943: return 'no_host';
1.9 www 944: }
1.471 albertel 945: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 946: return 'no_host';
947: }
948:
1.1073 raeburn 949: sub can_host_session {
1.1074 raeburn 950: my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
1.1073 raeburn 951: my $canhost = 1;
1.1074 raeburn 952: my $host_idn = &Apache::lonnet::internet_dom($lonhost);
1.1073 raeburn 953: if (ref($remotesessions) eq 'HASH') {
954: if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
1.1074 raeburn 955: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
1.1073 raeburn 956: $canhost = 0;
957: } else {
958: $canhost = 1;
959: }
960: }
961: if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
1.1074 raeburn 962: if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
1.1073 raeburn 963: $canhost = 1;
964: } else {
965: $canhost = 0;
966: }
967: }
968: if ($canhost) {
969: if ($remotesessions->{'version'} ne '') {
970: my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
971: if ($reqmajor ne '' && $reqminor ne '') {
972: if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
973: my $major = $1;
974: my $minor = $2;
975: if (($major < $reqmajor ) ||
976: (($major == $reqmajor) && ($minor < $reqminor))) {
977: $canhost = 0;
978: }
979: } else {
980: $canhost = 0;
981: }
982: }
983: }
984: }
985: }
986: if ($canhost) {
987: if (ref($hostedsessions) eq 'HASH') {
988: if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
989: if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'excludedomain'}})) {
990: $canhost = 0;
991: } else {
992: $canhost = 1;
993: }
994: }
995: if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
996: if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'includedomain'}})) {
997: $canhost = 1;
998: } else {
999: $canhost = 0;
1000: }
1001: }
1002: }
1003: }
1004: return $canhost;
1005: }
1006:
1.1083 raeburn 1007: sub spare_can_host {
1008: my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
1009: my $canhost=1;
1010: my @intdoms;
1011: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
1012: if (ref($internet_names) eq 'ARRAY') {
1013: @intdoms = @{$internet_names};
1014: }
1015: unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
1016: my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
1017: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
1018: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
1019: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
1020: $canhost = &can_host_session($udom,$try_server,$remoterev,
1021: $remotesessions,
1022: $defdomdefaults{'hostedsessions'});
1023: }
1024: return $canhost;
1025: }
1026:
1.1 albertel 1027: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 1028:
1.599 albertel 1029: my %homecache;
1.1 albertel 1030: sub homeserver {
1.230 stredwic 1031: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 1032: my $index="$uname:$udom";
1.426 albertel 1033:
1.599 albertel 1034: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 1035:
1036: my %servers = &get_servers($udom,'library');
1037: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 1038: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 1039: exists($badServerCache{$tryserver}));
1.841 albertel 1040:
1041: my $answer=reply("home:$udom:$uname",$tryserver);
1042: if ($answer eq 'found') {
1043: delete($badServerCache{$tryserver});
1044: return $homecache{$index}=$tryserver;
1045: } elsif ($answer eq 'no_host') {
1046: $badServerCache{$tryserver}=1;
1047: }
1.1 albertel 1048: }
1049: return 'no_host';
1.70 www 1050: }
1051:
1052: # ------------------------------------- Find the usernames behind a list of IDs
1053:
1054: sub idget {
1055: my ($udom,@ids)=@_;
1056: my %returnhash=();
1057:
1.841 albertel 1058: my %servers = &get_servers($udom,'library');
1059: foreach my $tryserver (keys(%servers)) {
1060: my $idlist=join('&',@ids);
1061: $idlist=~tr/A-Z/a-z/;
1062: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
1063: my @answer=();
1064: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1065: @answer=split(/\&/,$reply);
1066: } ;
1067: my $i;
1068: for ($i=0;$i<=$#ids;$i++) {
1069: if ($answer[$i]) {
1070: $returnhash{$ids[$i]}=$answer[$i];
1071: }
1072: }
1073: }
1.70 www 1074: return %returnhash;
1075: }
1076:
1077: # ------------------------------------- Find the IDs behind a list of usernames
1078:
1079: sub idrget {
1080: my ($udom,@unames)=@_;
1081: my %returnhash=();
1.800 albertel 1082: foreach my $uname (@unames) {
1083: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 1084: }
1.70 www 1085: return %returnhash;
1086: }
1087:
1088: # ------------------------------- Store away a list of names and associated IDs
1089:
1090: sub idput {
1091: my ($udom,%ids)=@_;
1092: my %servers=();
1.800 albertel 1093: foreach my $uname (keys(%ids)) {
1094: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
1095: my $uhom=&homeserver($uname,$udom);
1.70 www 1096: if ($uhom ne 'no_host') {
1.800 albertel 1097: my $id=&escape($ids{$uname});
1.70 www 1098: $id=~tr/A-Z/a-z/;
1.800 albertel 1099: my $esc_unam=&escape($uname);
1.70 www 1100: if ($servers{$uhom}) {
1.800 albertel 1101: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 1102: } else {
1.800 albertel 1103: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 1104: }
1105: }
1.191 harris41 1106: }
1.800 albertel 1107: foreach my $server (keys(%servers)) {
1108: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 1109: }
1.344 www 1110: }
1111:
1.1023 raeburn 1112: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 1113: sub dump_dom {
1.1023 raeburn 1114: my ($namespace,$udom,$regexp,$range)=@_;
1.1012 raeburn 1115: if (!$udom) {
1116: $udom=$env{'user.domain'};
1117: }
1118: my %returnhash;
1.1023 raeburn 1119: if ($udom) {
1120: my $uname = &get_domainconfiguser($udom);
1121: %returnhash = &dump($namespace,$udom,$uname,$regexp,$range);
1.1012 raeburn 1122: }
1123: return %returnhash;
1124: }
1125:
1.1023 raeburn 1126: # ------------------------------------------ get items from domain db files
1.806 raeburn 1127:
1128: sub get_dom {
1.860 raeburn 1129: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1130: my $items='';
1131: foreach my $item (@$storearr) {
1132: $items.=&escape($item).'&';
1133: }
1134: $items=~s/\&$//;
1.860 raeburn 1135: if (!$udom) {
1136: $udom=$env{'user.domain'};
1137: if (defined(&domain($udom,'primary'))) {
1138: $uhome=&domain($udom,'primary');
1139: } else {
1.874 albertel 1140: undef($uhome);
1.860 raeburn 1141: }
1142: } else {
1143: if (!$uhome) {
1144: if (defined(&domain($udom,'primary'))) {
1145: $uhome=&domain($udom,'primary');
1146: }
1147: }
1148: }
1149: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1150: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1151: my %returnhash;
1.875 albertel 1152: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1153: return %returnhash;
1154: }
1.806 raeburn 1155: my @pairs=split(/\&/,$rep);
1156: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1157: return @pairs;
1158: }
1159: my $i=0;
1160: foreach my $item (@$storearr) {
1161: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1162: $i++;
1163: }
1164: return %returnhash;
1165: } else {
1.880 banghart 1166: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1167: }
1168: }
1169:
1170: # -------------------------------------------- put items in domain db files
1171:
1172: sub put_dom {
1.860 raeburn 1173: my ($namespace,$storehash,$udom,$uhome)=@_;
1174: if (!$udom) {
1175: $udom=$env{'user.domain'};
1176: if (defined(&domain($udom,'primary'))) {
1177: $uhome=&domain($udom,'primary');
1178: } else {
1.874 albertel 1179: undef($uhome);
1.860 raeburn 1180: }
1181: } else {
1182: if (!$uhome) {
1183: if (defined(&domain($udom,'primary'))) {
1184: $uhome=&domain($udom,'primary');
1185: }
1186: }
1187: }
1188: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1189: my $items='';
1190: foreach my $item (keys(%$storehash)) {
1191: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1192: }
1193: $items=~s/\&$//;
1194: return &reply("putdom:$udom:$namespace:$items",$uhome);
1195: } else {
1.860 raeburn 1196: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1197: }
1198: }
1199:
1.1023 raeburn 1200: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1201: sub newput_dom {
1.1023 raeburn 1202: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1203: my $result;
1204: if (!$udom) {
1205: $udom=$env{'user.domain'};
1206: }
1.1023 raeburn 1207: if ($udom) {
1208: my $uname = &get_domainconfiguser($udom);
1209: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1210: }
1211: return $result;
1212: }
1213:
1.1023 raeburn 1214: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1215: sub del_dom {
1.1023 raeburn 1216: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1217: if (ref($storearr) eq 'ARRAY') {
1218: if (!$udom) {
1219: $udom=$env{'user.domain'};
1220: }
1.1023 raeburn 1221: if ($udom) {
1222: my $uname = &get_domainconfiguser($udom);
1223: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1224: }
1225: }
1226: }
1227:
1.1023 raeburn 1228: # ----------------------------------construct domainconfig user for a domain
1229: sub get_domainconfiguser {
1230: my ($udom) = @_;
1231: return $udom.'-domainconfig';
1232: }
1233:
1.837 raeburn 1234: sub retrieve_inst_usertypes {
1235: my ($udom) = @_;
1236: my (%returnhash,@order);
1.989 raeburn 1237: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1238: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1239: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1240: %returnhash = %{$domdefs{'inststatustypes'}};
1241: @order = @{$domdefs{'inststatusorder'}};
1242: } else {
1243: if (defined(&domain($udom,'primary'))) {
1244: my $uhome=&domain($udom,'primary');
1245: my $rep=&reply("inst_usertypes:$udom",$uhome);
1246: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1247: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1248: return (\%returnhash,\@order);
1249: }
1250: my ($hashitems,$orderitems) = split(/:/,$rep);
1251: my @pairs=split(/\&/,$hashitems);
1252: foreach my $item (@pairs) {
1253: my ($key,$value)=split(/=/,$item,2);
1254: $key = &unescape($key);
1255: next if ($key =~ /^error: 2 /);
1256: $returnhash{$key}=&thaw_unescape($value);
1257: }
1258: my @esc_order = split(/\&/,$orderitems);
1259: foreach my $item (@esc_order) {
1260: push(@order,&unescape($item));
1261: }
1262: } else {
1263: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1264: }
1265: }
1266: return (\%returnhash,\@order);
1267: }
1268:
1.868 raeburn 1269: sub is_domainimage {
1270: my ($url) = @_;
1271: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1272: if (&domain($1) ne '') {
1273: return '1';
1274: }
1275: }
1276: return;
1277: }
1278:
1.899 raeburn 1279: sub inst_directory_query {
1280: my ($srch) = @_;
1281: my $udom = $srch->{'srchdomain'};
1282: my %results;
1283: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1284: my $outcome;
1.899 raeburn 1285: if ($homeserver ne '') {
1.904 albertel 1286: my $queryid=&reply("querysend:instdirsearch:".
1287: &escape($srch->{'srchby'}).':'.
1288: &escape($srch->{'srchterm'}).':'.
1289: &escape($srch->{'srchtype'}),$homeserver);
1290: my $host=&hostname($homeserver);
1291: if ($queryid !~/^\Q$host\E\_/) {
1292: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1293: return;
1294: }
1295: my $response = &get_query_reply($queryid);
1296: my $maxtries = 5;
1297: my $tries = 1;
1298: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1299: $response = &get_query_reply($queryid);
1300: $tries ++;
1301: }
1302:
1303: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1304: if ($response eq 'unavailable') {
1305: $outcome = $response;
1306: } else {
1307: $outcome = 'ok';
1308: my @matches = split(/\n/,$response);
1309: foreach my $match (@matches) {
1310: my ($key,$value) = split(/=/,$match);
1311: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1312: }
1.899 raeburn 1313: }
1314: }
1315: }
1.909 raeburn 1316: return ($outcome,%results);
1.899 raeburn 1317: }
1318:
1319: sub usersearch {
1320: my ($srch) = @_;
1321: my $dom = $srch->{'srchdomain'};
1322: my %results;
1323: my %libserv = &all_library();
1324: my $query = 'usersearch';
1325: foreach my $tryserver (keys(%libserv)) {
1326: if (&host_domain($tryserver) eq $dom) {
1327: my $host=&hostname($tryserver);
1328: my $queryid=
1.911 raeburn 1329: &reply("querysend:".&escape($query).':'.
1330: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1331: &escape($srch->{'srchtype'}).':'.
1332: &escape($srch->{'srchterm'}),$tryserver);
1333: if ($queryid !~/^\Q$host\E\_/) {
1334: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1335: next;
1.899 raeburn 1336: }
1337: my $reply = &get_query_reply($queryid);
1338: my $maxtries = 1;
1339: my $tries = 1;
1340: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1341: $reply = &get_query_reply($queryid);
1342: $tries ++;
1343: }
1344: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1345: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1346: } else {
1.911 raeburn 1347: my @matches;
1348: if ($reply =~ /\n/) {
1349: @matches = split(/\n/,$reply);
1350: } else {
1351: @matches = split(/\&/,$reply);
1352: }
1.899 raeburn 1353: foreach my $match (@matches) {
1354: my ($uname,$udom,%userhash);
1.911 raeburn 1355: foreach my $entry (split(/:/,$match)) {
1356: my ($key,$value) =
1357: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1358: $userhash{$key} = $value;
1359: if ($key eq 'username') {
1360: $uname = $value;
1361: } elsif ($key eq 'domain') {
1362: $udom = $value;
1.911 raeburn 1363: }
1.899 raeburn 1364: }
1365: $results{$uname.':'.$udom} = \%userhash;
1366: }
1367: }
1368: }
1369: }
1370: return %results;
1371: }
1372:
1.912 raeburn 1373: sub get_instuser {
1374: my ($udom,$uname,$id) = @_;
1375: my $homeserver = &domain($udom,'primary');
1376: my ($outcome,%results);
1377: if ($homeserver ne '') {
1378: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1379: &escape($id).':'.&escape($udom),$homeserver);
1380: my $host=&hostname($homeserver);
1381: if ($queryid !~/^\Q$host\E\_/) {
1382: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1383: return;
1384: }
1385: my $response = &get_query_reply($queryid);
1386: my $maxtries = 5;
1387: my $tries = 1;
1388: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1389: $response = &get_query_reply($queryid);
1390: $tries ++;
1391: }
1392: if (!&error($response) && $response ne 'refused') {
1393: if ($response eq 'unavailable') {
1394: $outcome = $response;
1395: } else {
1396: $outcome = 'ok';
1397: my @matches = split(/\n/,$response);
1398: foreach my $match (@matches) {
1399: my ($key,$value) = split(/=/,$match);
1400: $results{&unescape($key)} = &thaw_unescape($value);
1401: }
1402: }
1403: }
1404: }
1405: my %userinfo;
1406: if (ref($results{$uname}) eq 'HASH') {
1407: %userinfo = %{$results{$uname}};
1408: }
1409: return ($outcome,%userinfo);
1410: }
1411:
1412: sub inst_rulecheck {
1.923 raeburn 1413: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1414: my %returnhash;
1415: if ($udom ne '') {
1416: if (ref($rules) eq 'ARRAY') {
1417: @{$rules} = map {&escape($_);} (@{$rules});
1418: my $rulestr = join(':',@{$rules});
1419: my $homeserver=&domain($udom,'primary');
1420: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1421: my $response;
1422: if ($item eq 'username') {
1423: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1424: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1425: $homeserver));
1.923 raeburn 1426: } elsif ($item eq 'id') {
1427: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1428: ':'.&escape($id).':'.$rulestr,
1429: $homeserver));
1.945 raeburn 1430: } elsif ($item eq 'selfcreate') {
1431: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1432: &escape($udom).':'.&escape($uname).
1433: ':'.$rulestr,$homeserver));
1.923 raeburn 1434: }
1.912 raeburn 1435: if ($response ne 'refused') {
1436: my @pairs=split(/\&/,$response);
1437: foreach my $item (@pairs) {
1438: my ($key,$value)=split(/=/,$item,2);
1439: $key = &unescape($key);
1440: next if ($key =~ /^error: 2 /);
1441: $returnhash{$key}=&thaw_unescape($value);
1442: }
1443: }
1444: }
1445: }
1446: }
1447: return %returnhash;
1448: }
1449:
1450: sub inst_userrules {
1.923 raeburn 1451: my ($udom,$check) = @_;
1.912 raeburn 1452: my (%ruleshash,@ruleorder);
1453: if ($udom ne '') {
1454: my $homeserver=&domain($udom,'primary');
1455: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1456: my $response;
1457: if ($check eq 'id') {
1458: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1459: $homeserver);
1.943 raeburn 1460: } elsif ($check eq 'email') {
1461: $response=&reply('instemailrules:'.&escape($udom),
1462: $homeserver);
1.923 raeburn 1463: } else {
1464: $response=&reply('instuserrules:'.&escape($udom),
1465: $homeserver);
1466: }
1.912 raeburn 1467: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1468: ($response ne 'unknown_cmd') &&
1.912 raeburn 1469: ($response ne 'no_such_host')) {
1470: my ($hashitems,$orderitems) = split(/:/,$response);
1471: my @pairs=split(/\&/,$hashitems);
1472: foreach my $item (@pairs) {
1473: my ($key,$value)=split(/=/,$item,2);
1474: $key = &unescape($key);
1475: next if ($key =~ /^error: 2 /);
1476: $ruleshash{$key}=&thaw_unescape($value);
1477: }
1478: my @esc_order = split(/\&/,$orderitems);
1479: foreach my $item (@esc_order) {
1480: push(@ruleorder,&unescape($item));
1481: }
1482: }
1483: }
1484: }
1485: return (\%ruleshash,\@ruleorder);
1486: }
1487:
1.976 raeburn 1488: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1489:
1490: sub get_domain_defaults {
1491: my ($domain) = @_;
1492: my $cachetime = 60*60*24;
1493: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1494: if (defined($cached)) {
1495: if (ref($result) eq 'HASH') {
1496: return %{$result};
1497: }
1498: }
1499: my %domdefaults;
1500: my %domconfig =
1.989 raeburn 1501: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1.1047 raeburn 1502: 'requestcourses','inststatus',
1.1073 raeburn 1503: 'coursedefaults','usersessions'],$domain);
1.943 raeburn 1504: if (ref($domconfig{'defaults'}) eq 'HASH') {
1505: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1506: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1507: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1508: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1509: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.943 raeburn 1510: } else {
1511: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1512: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1513: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1514: }
1.976 raeburn 1515: if (ref($domconfig{'quotas'}) eq 'HASH') {
1516: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1517: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1518: } else {
1519: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1520: }
1521: my @usertools = ('aboutme','blog','portfolio');
1522: foreach my $item (@usertools) {
1523: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1524: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1525: }
1526: }
1527: }
1.985 raeburn 1528: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1529: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1530: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1531: }
1532: }
1.989 raeburn 1533: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1534: foreach my $item ('inststatustypes','inststatusorder') {
1535: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1536: }
1537: }
1.1047 raeburn 1538: if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
1539: foreach my $item ('canuse_pdfforms') {
1540: $domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
1541: }
1542: }
1.1073 raeburn 1543: if (ref($domconfig{'usersessions'}) eq 'HASH') {
1544: if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
1545: $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
1546: }
1547: if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
1548: $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
1549: }
1550: }
1.943 raeburn 1551: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1552: $cachetime);
1553: return %domdefaults;
1554: }
1555:
1.344 www 1556: # --------------------------------------------------- Assign a key to a student
1557:
1558: sub assign_access_key {
1.364 www 1559: #
1560: # a valid key looks like uname:udom#comments
1561: # comments are being appended
1562: #
1.498 www 1563: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1564: $kdom=
1.620 albertel 1565: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1566: $knum=
1.620 albertel 1567: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1568: $cdom=
1.620 albertel 1569: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1570: $cnum=
1.620 albertel 1571: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1572: $udom=$env{'user.name'} unless (defined($udom));
1573: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1574: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1575: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1576: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1577: # assigned to this person
1578: # - this should not happen,
1.345 www 1579: # unless something went wrong
1580: # the first time around
1581: # ready to assign
1.364 www 1582: $logentry=$1.'; '.$logentry;
1.496 www 1583: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1584: $kdom,$knum) eq 'ok') {
1.345 www 1585: # key now belongs to user
1.346 www 1586: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1587: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1588: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1589: return 'ok';
1590: } else {
1591: return
1592: 'error: Count not permanently assign key, will need to be re-entered later.';
1593: }
1594: } else {
1595: return 'error: Could not assign key, try again later.';
1596: }
1.364 www 1597: } elsif (!$existing{$ckey}) {
1.345 www 1598: # the key does not exist
1599: return 'error: The key does not exist';
1600: } else {
1601: # the key is somebody else's
1602: return 'error: The key is already in use';
1603: }
1.344 www 1604: }
1605:
1.364 www 1606: # ------------------------------------------ put an additional comment on a key
1607:
1608: sub comment_access_key {
1609: #
1610: # a valid key looks like uname:udom#comments
1611: # comments are being appended
1612: #
1613: my ($ckey,$cdom,$cnum,$logentry)=@_;
1614: $cdom=
1.620 albertel 1615: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1616: $cnum=
1.620 albertel 1617: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1618: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1619: if ($existing{$ckey}) {
1620: $existing{$ckey}.='; '.$logentry;
1621: # ready to assign
1.367 www 1622: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1623: $cdom,$cnum) eq 'ok') {
1624: return 'ok';
1625: } else {
1626: return 'error: Count not store comment.';
1627: }
1628: } else {
1629: # the key does not exist
1630: return 'error: The key does not exist';
1631: }
1632: }
1633:
1.344 www 1634: # ------------------------------------------------------ Generate a set of keys
1635:
1636: sub generate_access_keys {
1.364 www 1637: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1638: $cdom=
1.620 albertel 1639: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1640: $cnum=
1.620 albertel 1641: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1642: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1643: unless (($cdom) && ($cnum)) { return 0; }
1644: if ($number>10000) { return 0; }
1645: sleep(2); # make sure don't get same seed twice
1646: srand(time()^($$+($$<<15))); # from "Programming Perl"
1647: my $total=0;
1648: for (my $i=1;$i<=$number;$i++) {
1649: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1650: sprintf("%lx",int(100000*rand)).'-'.
1651: sprintf("%lx",int(100000*rand));
1652: $newkey=~s/1/g/g; # folks mix up 1 and l
1653: $newkey=~s/0/h/g; # and also 0 and O
1654: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1655: if ($existing{$newkey}) {
1656: $i--;
1657: } else {
1.364 www 1658: if (&put('accesskeys',
1659: { $newkey => '# generated '.localtime().
1.620 albertel 1660: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1661: '; '.$logentry },
1662: $cdom,$cnum) eq 'ok') {
1.344 www 1663: $total++;
1664: }
1665: }
1666: }
1.620 albertel 1667: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1668: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1669: return $total;
1670: }
1671:
1672: # ------------------------------------------------------- Validate an accesskey
1673:
1674: sub validate_access_key {
1675: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1676: $cdom=
1.620 albertel 1677: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1678: $cnum=
1.620 albertel 1679: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1680: $udom=$env{'user.domain'} unless (defined($udom));
1681: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1682: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1683: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1684: }
1685:
1686: # ------------------------------------- Find the section of student in a course
1.652 albertel 1687: sub devalidate_getsection_cache {
1688: my ($udom,$unam,$courseid)=@_;
1689: my $hashid="$udom:$unam:$courseid";
1690: &devalidate_cache_new('getsection',$hashid);
1691: }
1.298 matthew 1692:
1.815 albertel 1693: sub courseid_to_courseurl {
1694: my ($courseid) = @_;
1695: #already url style courseid
1696: return $courseid if ($courseid =~ m{^/});
1697:
1698: if (exists($env{'course.'.$courseid.'.num'})) {
1699: my $cnum = $env{'course.'.$courseid.'.num'};
1700: my $cdom = $env{'course.'.$courseid.'.domain'};
1701: return "/$cdom/$cnum";
1702: }
1703:
1704: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1705: if (exists($courseinfo{'num'})) {
1706: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1707: }
1708:
1709: return undef;
1710: }
1711:
1.298 matthew 1712: sub getsection {
1713: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1714: my $cachetime=1800;
1.551 albertel 1715:
1716: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1717: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1718: if (defined($cached)) { return $result; }
1719:
1.298 matthew 1720: my %Pending;
1721: my %Expired;
1722: #
1723: # Each role can either have not started yet (pending), be active,
1724: # or have expired.
1725: #
1726: # If there is an active role, we are done.
1727: #
1728: # If there is more than one role which has not started yet,
1729: # choose the one which will start sooner
1730: # If there is one role which has not started yet, return it.
1731: #
1732: # If there is more than one expired role, choose the one which ended last.
1733: # If there is a role which has expired, return it.
1734: #
1.815 albertel 1735: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1736: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1737: foreach my $key (keys(%roleshash)) {
1.479 albertel 1738: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1739: my $section=$1;
1740: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1741: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1742: my $now=time;
1.548 albertel 1743: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1744: $Expired{$end}=$section;
1745: next;
1746: }
1.548 albertel 1747: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1748: $Pending{$start}=$section;
1749: next;
1750: }
1.599 albertel 1751: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1752: }
1753: #
1754: # Presumedly there will be few matching roles from the above
1755: # loop and the sorting time will be negligible.
1756: if (scalar(keys(%Pending))) {
1757: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1758: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1759: }
1760: if (scalar(keys(%Expired))) {
1761: my @sorted = sort {$a <=> $b} keys(%Expired);
1762: my $time = pop(@sorted);
1.599 albertel 1763: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1764: }
1.599 albertel 1765: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1766: }
1.70 www 1767:
1.599 albertel 1768: sub save_cache {
1769: &purge_remembered();
1.722 albertel 1770: #&Apache::loncommon::validate_page();
1.620 albertel 1771: undef(%env);
1.780 albertel 1772: undef($env_loaded);
1.599 albertel 1773: }
1.452 albertel 1774:
1.599 albertel 1775: my $to_remember=-1;
1776: my %remembered;
1777: my %accessed;
1778: my $kicks=0;
1779: my $hits=0;
1.849 albertel 1780: sub make_key {
1781: my ($name,$id) = @_;
1.872 albertel 1782: if (length($id) > 65
1783: && length(&escape($id)) > 200) {
1784: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1785: }
1.849 albertel 1786: return &escape($name.':'.$id);
1787: }
1788:
1.599 albertel 1789: sub devalidate_cache_new {
1790: my ($name,$id,$debug) = @_;
1791: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1792: $id=&make_key($name,$id);
1.599 albertel 1793: $memcache->delete($id);
1794: delete($remembered{$id});
1795: delete($accessed{$id});
1796: }
1797:
1798: sub is_cached_new {
1799: my ($name,$id,$debug) = @_;
1.849 albertel 1800: $id=&make_key($name,$id);
1.599 albertel 1801: if (exists($remembered{$id})) {
1802: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1803: $accessed{$id}=[&gettimeofday()];
1804: $hits++;
1805: return ($remembered{$id},1);
1806: }
1807: my $value = $memcache->get($id);
1808: if (!(defined($value))) {
1809: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1810: return (undef,undef);
1.416 albertel 1811: }
1.599 albertel 1812: if ($value eq '__undef__') {
1813: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1814: $value=undef;
1815: }
1816: &make_room($id,$value,$debug);
1817: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1818: return ($value,1);
1819: }
1820:
1821: sub do_cache_new {
1822: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1823: $id=&make_key($name,$id);
1.599 albertel 1824: my $setvalue=$value;
1825: if (!defined($setvalue)) {
1826: $setvalue='__undef__';
1827: }
1.623 albertel 1828: if (!defined($time) ) {
1829: $time=600;
1830: }
1.599 albertel 1831: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1832: my $result = $memcache->set($id,$setvalue,$time);
1833: if (! $result) {
1.872 albertel 1834: &logthis("caching of id -> $id failed");
1.910 albertel 1835: $memcache->disconnect_all();
1.872 albertel 1836: }
1.600 albertel 1837: # need to make a copy of $value
1.919 albertel 1838: &make_room($id,$value,$debug);
1.599 albertel 1839: return $value;
1840: }
1841:
1842: sub make_room {
1843: my ($id,$value,$debug)=@_;
1.919 albertel 1844:
1845: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1846: : $value;
1.599 albertel 1847: if ($to_remember<0) { return; }
1848: $accessed{$id}=[&gettimeofday()];
1849: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1850: my $to_kick;
1851: my $max_time=0;
1852: foreach my $other (keys(%accessed)) {
1853: if (&tv_interval($accessed{$other}) > $max_time) {
1854: $to_kick=$other;
1855: $max_time=&tv_interval($accessed{$other});
1856: }
1857: }
1858: delete($remembered{$to_kick});
1859: delete($accessed{$to_kick});
1860: $kicks++;
1861: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1862: return;
1863: }
1864:
1.599 albertel 1865: sub purge_remembered {
1.604 albertel 1866: #&logthis("Tossing ".scalar(keys(%remembered)));
1867: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1868: undef(%remembered);
1869: undef(%accessed);
1.428 albertel 1870: }
1.70 www 1871: # ------------------------------------- Read an entry from a user's environment
1872:
1873: sub userenvironment {
1874: my ($udom,$unam,@what)=@_;
1.976 raeburn 1875: my $items;
1876: foreach my $item (@what) {
1877: $items.=&escape($item).'&';
1878: }
1879: $items=~s/\&$//;
1.70 www 1880: my %returnhash=();
1.1009 raeburn 1881: my $uhome = &homeserver($unam,$udom);
1882: unless ($uhome eq 'no_host') {
1883: my @answer=split(/\&/,
1884: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1.1048 raeburn 1885: if ($#answer==0 && $answer[0] =~ /^(con_lost|error:|no_such_host)/i) {
1886: return %returnhash;
1887: }
1.1009 raeburn 1888: my $i;
1889: for ($i=0;$i<=$#what;$i++) {
1890: $returnhash{$what[$i]}=&unescape($answer[$i]);
1891: }
1.70 www 1892: }
1893: return %returnhash;
1.1 albertel 1894: }
1895:
1.617 albertel 1896: # ---------------------------------------------------------- Get a studentphoto
1897: sub studentphoto {
1898: my ($udom,$unam,$ext) = @_;
1899: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1900: if (defined($env{'request.course.id'})) {
1.708 raeburn 1901: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1902: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1903: return(&retrievestudentphoto($udom,$unam,$ext));
1904: } else {
1905: my ($result,$perm_reqd)=
1.707 albertel 1906: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1907: if ($result eq 'ok') {
1908: if (!($perm_reqd eq 'yes')) {
1909: return(&retrievestudentphoto($udom,$unam,$ext));
1910: }
1911: }
1912: }
1913: }
1914: } else {
1915: my ($result,$perm_reqd) =
1.707 albertel 1916: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1917: if ($result eq 'ok') {
1918: if (!($perm_reqd eq 'yes')) {
1919: return(&retrievestudentphoto($udom,$unam,$ext));
1920: }
1921: }
1922: }
1923: return '/adm/lonKaputt/lonlogo_broken.gif';
1924: }
1925:
1926: sub retrievestudentphoto {
1927: my ($udom,$unam,$ext,$type) = @_;
1928: my $home=&Apache::lonnet::homeserver($unam,$udom);
1929: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1930: if ($ret eq 'ok') {
1931: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1932: if ($type eq 'thumbnail') {
1933: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1934: }
1935: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1936: return $tokenurl;
1937: } else {
1938: if ($type eq 'thumbnail') {
1939: return '/adm/lonKaputt/genericstudent_tn.gif';
1940: } else {
1941: return '/adm/lonKaputt/lonlogo_broken.gif';
1942: }
1.617 albertel 1943: }
1944: }
1945:
1.263 www 1946: # -------------------------------------------------------------------- New chat
1947:
1948: sub chatsend {
1.724 raeburn 1949: my ($newentry,$anon,$group)=@_;
1.620 albertel 1950: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1951: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1952: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1953: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1954: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1955: &escape($newentry)).':'.$group,$chome);
1.292 www 1956: }
1957:
1958: # ------------------------------------------ Find current version of a resource
1959:
1960: sub getversion {
1961: my $fname=&clutter(shift);
1962: unless ($fname=~/^\/res\//) { return -1; }
1963: return ¤tversion(&filelocation('',$fname));
1964: }
1965:
1966: sub currentversion {
1967: my $fname=shift;
1.599 albertel 1968: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1969: if (defined($cached)) { return $result; }
1.292 www 1970: my $author=$fname;
1971: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1972: my ($udom,$uname)=split(/\//,$author);
1973: my $home=homeserver($uname,$udom);
1974: if ($home eq 'no_host') {
1975: return -1;
1976: }
1977: my $answer=reply("currentversion:$fname",$home);
1978: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1979: return -1;
1980: }
1.599 albertel 1981: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1982: }
1983:
1.1 albertel 1984: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1985:
1.1 albertel 1986: sub subscribe {
1987: my $fname=shift;
1.761 raeburn 1988: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1989: $fname=~s/[\n\r]//g;
1.1 albertel 1990: my $author=$fname;
1991: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1992: my ($udom,$uname)=split(/\//,$author);
1993: my $home=homeserver($uname,$udom);
1.335 albertel 1994: if ($home eq 'no_host') {
1995: return 'not_found';
1.1 albertel 1996: }
1997: my $answer=reply("sub:$fname",$home);
1.64 www 1998: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1999: $answer.=' by '.$home;
2000: }
1.1 albertel 2001: return $answer;
2002: }
2003:
1.8 www 2004: # -------------------------------------------------------------- Replicate file
2005:
2006: sub repcopy {
2007: my $filename=shift;
1.23 www 2008: $filename=~s/\/+/\//g;
1.607 raeburn 2009: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
2010: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 2011: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 2012: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 2013: return &repcopy_userfile($filename);
2014: }
1.532 albertel 2015: $filename=~s/[\n\r]//g;
1.8 www 2016: my $transname="$filename.in.transfer";
1.828 www 2017: # FIXME: this should flock
1.607 raeburn 2018: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 2019: my $remoteurl=subscribe($filename);
1.64 www 2020: if ($remoteurl =~ /^con_lost by/) {
2021: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2022: return 'unavailable';
1.8 www 2023: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 2024: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 2025: return 'not_found';
1.64 www 2026: } elsif ($remoteurl =~ /^rejected by/) {
2027: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 2028: return 'forbidden';
1.20 www 2029: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 2030: return 'ok';
1.8 www 2031: } else {
1.290 www 2032: my $author=$filename;
2033: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
2034: my ($udom,$uname)=split(/\//,$author);
2035: my $home=homeserver($uname,$udom);
2036: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 2037: my @parts=split(/\//,$filename);
2038: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
2039: if ($path ne "$perlvar{'lonDocRoot'}/res") {
2040: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 2041: return 'bad_request';
1.8 www 2042: }
2043: my $count;
2044: for ($count=5;$count<$#parts;$count++) {
2045: $path.="/$parts[$count]";
2046: if ((-e $path)!=1) {
2047: mkdir($path,0777);
2048: }
2049: }
2050: my $ua=new LWP::UserAgent;
2051: my $request=new HTTP::Request('GET',"$remoteurl");
2052: my $response=$ua->request($request,$transname);
2053: if ($response->is_error()) {
2054: unlink($transname);
2055: my $message=$response->status_line;
1.672 albertel 2056: &logthis("<font color=\"blue\">WARNING:"
1.12 www 2057: ." LWP get: $message: $filename</font>");
1.607 raeburn 2058: return 'unavailable';
1.8 www 2059: } else {
1.16 www 2060: if ($remoteurl!~/\.meta$/) {
2061: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
2062: my $mresponse=$ua->request($mrequest,$filename.'.meta');
2063: if ($mresponse->is_error()) {
2064: unlink($filename.'.meta');
2065: &logthis(
1.672 albertel 2066: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 2067: }
2068: }
1.8 www 2069: rename($transname,$filename);
1.607 raeburn 2070: return 'ok';
1.8 www 2071: }
1.290 www 2072: }
1.8 www 2073: }
1.330 www 2074: }
2075:
2076: # ------------------------------------------------ Get server side include body
2077: sub ssi_body {
1.381 albertel 2078: my ($filelink,%form)=@_;
1.606 matthew 2079: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
2080: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
2081: }
1.953 www 2082: my $output='';
2083: my $response;
1.980 raeburn 2084: if ($filelink=~/^https?\:/) {
1.954 raeburn 2085: ($output,$response)=&externalssi($filelink);
1.953 www 2086: } else {
1.1004 droeschl 2087: $filelink .= $filelink=~/\?/ ? '&' : '?';
2088: $filelink .= 'inhibitmenu=yes';
1.953 www 2089: ($output,$response)=&ssi($filelink,%form);
2090: }
1.778 albertel 2091: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 2092: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 2093: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 2094: if (wantarray) {
2095: return ($output, $response);
2096: } else {
2097: return $output;
2098: }
1.8 www 2099: }
2100:
1.15 www 2101: # --------------------------------------------------------- Server Side Include
2102:
1.782 albertel 2103: sub absolute_url {
2104: my ($host_name) = @_;
2105: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
2106: if ($host_name eq '') {
2107: $host_name = $ENV{'SERVER_NAME'};
2108: }
2109: return $protocol.$host_name;
2110: }
2111:
1.942 foxr 2112: #
2113: # Server side include.
2114: # Parameters:
2115: # fn Possibly encrypted resource name/id.
2116: # form Hash that describes how the rendering should be done
2117: # and other things.
1.944 foxr 2118: # Returns:
1.950 raeburn 2119: # Scalar context: The content of the response.
2120: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2121: #
1.15 www 2122: sub ssi {
2123:
1.944 foxr 2124: my ($fn,%form)=@_;
1.15 www 2125: my $ua=new LWP::UserAgent;
1.23 www 2126: my $request;
1.711 albertel 2127:
2128: $form{'no_update_last_known'}=1;
1.895 albertel 2129: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2130: if (%form) {
1.782 albertel 2131: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2132: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2133: } else {
1.782 albertel 2134: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2135: }
2136:
1.15 www 2137: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
2138: my $response=$ua->request($request);
2139:
1.944 foxr 2140: if (wantarray) {
2141: return ($response->content, $response);
2142: } else {
2143: return $response->content;
1.942 foxr 2144: }
1.324 www 2145: }
2146:
2147: sub externalssi {
2148: my ($url)=@_;
2149: my $ua=new LWP::UserAgent;
2150: my $request=new HTTP::Request('GET',$url);
2151: my $response=$ua->request($request);
1.954 raeburn 2152: if (wantarray) {
2153: return ($response->content, $response);
2154: } else {
2155: return $response->content;
2156: }
1.15 www 2157: }
1.254 www 2158:
1.492 albertel 2159: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2160:
2161: sub allowuploaded {
2162: my ($srcurl,$url)=@_;
2163: $url=&clutter(&declutter($url));
2164: my $dir=$url;
2165: $dir=~s/\/[^\/]+$//;
2166: my %httpref=();
2167: my $httpurl=&hreflocation('',$url);
2168: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2169: &Apache::lonnet::appenv(\%httpref);
1.254 www 2170: }
1.477 raeburn 2171:
1.478 albertel 2172: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2173: # input: action, courseID, current domain, intended
1.637 raeburn 2174: # path to file, source of file, instruction to parse file for objects,
2175: # ref to hash for embedded objects,
2176: # ref to hash for codebase of java objects.
2177: #
1.485 raeburn 2178: # output: url to file (if action was uploaddoc),
2179: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2180: #
1.478 albertel 2181: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2182: # course.
1.477 raeburn 2183: #
1.478 albertel 2184: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2185: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2186: # course's home server.
1.477 raeburn 2187: #
1.478 albertel 2188: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2189: # be copied from $source (current location) to
2190: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2191: # and will then be copied to
2192: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2193: # course's home server.
1.485 raeburn 2194: #
1.481 raeburn 2195: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2196: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2197: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2198: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2199: # in course's home server.
1.637 raeburn 2200: #
1.477 raeburn 2201:
2202: sub process_coursefile {
1.638 albertel 2203: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 2204: my $fetchresult;
1.638 albertel 2205: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2206: if ($action eq 'propagate') {
1.638 albertel 2207: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2208: $home);
1.481 raeburn 2209: } else {
1.477 raeburn 2210: my $fpath = '';
2211: my $fname = $file;
1.478 albertel 2212: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2213: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2214: my $filepath = &build_filepath($fpath);
1.481 raeburn 2215: if ($action eq 'copy') {
2216: if ($source eq '') {
2217: $fetchresult = 'no source file';
2218: return $fetchresult;
2219: } else {
2220: my $destination = $filepath.'/'.$fname;
2221: rename($source,$destination);
2222: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2223: $home);
1.481 raeburn 2224: }
2225: } elsif ($action eq 'uploaddoc') {
2226: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2227: print $fh $env{'form.'.$source};
1.481 raeburn 2228: close($fh);
1.637 raeburn 2229: if ($parser eq 'parse') {
1.1024 raeburn 2230: my $mm = new File::MMagic;
2231: my $mime_type = $mm->checktype_filename($filepath.'/'.$fname);
2232: if ($mime_type eq 'text/html') {
2233: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2234: unless ($parse_result eq 'ok') {
2235: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2236: }
1.637 raeburn 2237: }
2238: }
1.477 raeburn 2239: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2240: $home);
1.481 raeburn 2241: if ($fetchresult eq 'ok') {
2242: return '/uploaded/'.$fpath.'/'.$fname;
2243: } else {
2244: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2245: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2246: return '/adm/notfound.html';
2247: }
1.477 raeburn 2248: }
2249: }
1.485 raeburn 2250: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2251: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2252: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2253: }
2254: return $fetchresult;
2255: }
2256:
1.637 raeburn 2257: sub build_filepath {
2258: my ($fpath) = @_;
2259: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2260: unless ($fpath eq '') {
2261: my @parts=split('/',$fpath);
2262: foreach my $part (@parts) {
2263: $filepath.= '/'.$part;
2264: if ((-e $filepath)!=1) {
2265: mkdir($filepath,0777);
2266: }
2267: }
2268: }
2269: return $filepath;
2270: }
2271:
2272: sub store_edited_file {
1.638 albertel 2273: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2274: my $file = $primary_url;
2275: $file =~ s#^/uploaded/$docudom/$docuname/##;
2276: my $fpath = '';
2277: my $fname = $file;
2278: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2279: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2280: my $filepath = &build_filepath($fpath);
2281: open(my $fh,'>'.$filepath.'/'.$fname);
2282: print $fh $content;
2283: close($fh);
1.638 albertel 2284: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2285: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2286: $home);
1.637 raeburn 2287: if ($$fetchresult eq 'ok') {
2288: return '/uploaded/'.$fpath.'/'.$fname;
2289: } else {
1.638 albertel 2290: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2291: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2292: return '/adm/notfound.html';
2293: }
2294: }
2295:
1.531 albertel 2296: sub clean_filename {
1.831 albertel 2297: my ($fname,$args)=@_;
1.315 www 2298: # Replace Windows backslashes by forward slashes
1.257 www 2299: $fname=~s/\\/\//g;
1.831 albertel 2300: if (!$args->{'keep_path'}) {
2301: # Get rid of everything but the actual filename
2302: $fname=~s/^.*\/([^\/]+)$/$1/;
2303: }
1.315 www 2304: # Replace spaces by underscores
2305: $fname=~s/\s+/\_/g;
2306: # Replace all other weird characters by nothing
1.831 albertel 2307: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2308: # Replace all .\d. sequences with _\d. so they no longer look like version
2309: # numbers
2310: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2311: return $fname;
2312: }
1.1051 raeburn 2313: # This Function checks if an Image's dimensions exceed either $resizewidth (width)
2314: # or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
2315: # image with the same aspect ratio as the original, but with dimensions which do
2316: # not exceed $resizewidth and $resizeheight.
2317:
1.984 neumanie 2318: sub resizeImage {
1.1051 raeburn 2319: my ($img_path,$resizewidth,$resizeheight) = @_;
2320: my $ima = Image::Magick->new;
2321: my $resized;
2322: if (-e $img_path) {
2323: $ima->Read($img_path);
2324: if (($resizewidth =~ /^\d+$/) && ($resizeheight > 0)) {
2325: my $width = $ima->Get('width');
2326: my $height = $ima->Get('height');
2327: if ($width > $resizewidth) {
2328: my $factor = $width/$resizewidth;
2329: my $newheight = $height/$factor;
2330: $ima->Scale(width=>$resizewidth,height=>$newheight);
2331: $resized = 1;
2332: }
2333: }
2334: if (($resizeheight =~ /^\d+$/) && ($resizeheight > 0)) {
2335: my $width = $ima->Get('width');
2336: my $height = $ima->Get('height');
2337: if ($height > $resizeheight) {
2338: my $factor = $height/$resizeheight;
2339: my $newwidth = $width/$factor;
2340: $ima->Scale(width=>$newwidth,height=>$resizeheight);
2341: $resized = 1;
2342: }
2343: }
2344: if ($resized) {
2345: $ima->Write($img_path);
2346: }
2347: }
2348: return;
1.977 amueller 2349: }
2350:
1.608 albertel 2351: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2352: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 2353: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 2354: # $coursedoc - if true up to the current course
2355: # if false
2356: # $subdir - directory in userfile to store the file into
1.858 raeburn 2357: # $parser - instruction to parse file for objects ($parser = parse)
2358: # $allfiles - reference to hash for embedded objects
2359: # $codebase - reference to hash for codebase of java objects
2360: # $desuname - username for permanent storage of uploaded file
2361: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2362: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2363: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.1051 raeburn 2364: # $resizewidth - width (pixels) to which to resize uploaded image
2365: # $resizeheight - height (pixels) to which to resize uploaded image
1.858 raeburn 2366: #
1.686 albertel 2367: # output: url of file in userspace, or error: <message>
2368: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2369:
1.531 albertel 2370: sub userfileupload {
1.860 raeburn 2371: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
1.1051 raeburn 2372: $destudom,$thumbwidth,$thumbheight,$resizewidth,$resizeheight)=@_;
1.531 albertel 2373: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2374: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2375: $fname=&clean_filename($fname);
1.315 www 2376: # See if there is anything left
1.257 www 2377: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 2378: chop($env{'form.'.$formname});
1.523 raeburn 2379: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
2380: my $now = time;
2381: my $filepath = 'tmp/helprequests/'.$now;
2382: my @parts=split(/\//,$filepath);
2383: my $fullpath = $perlvar{'lonDaemons'};
2384: for (my $i=0;$i<@parts;$i++) {
2385: $fullpath .= '/'.$parts[$i];
2386: if ((-e $fullpath)!=1) {
2387: mkdir($fullpath,0777);
2388: }
2389: }
2390: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 2391: print $fh $env{'form.'.$formname};
1.523 raeburn 2392: close($fh);
1.741 raeburn 2393: return $fullpath.'/'.$fname;
2394: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
2395: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2396: '_'.$env{'user.domain'}.'/pending';
2397: my @parts=split(/\//,$filepath);
2398: my $fullpath = $perlvar{'lonDaemons'};
2399: for (my $i=0;$i<@parts;$i++) {
2400: $fullpath .= '/'.$parts[$i];
2401: if ((-e $fullpath)!=1) {
2402: mkdir($fullpath,0777);
2403: }
2404: }
2405: open(my $fh,'>'.$fullpath.'/'.$fname);
2406: print $fh $env{'form.'.$formname};
2407: close($fh);
2408: return $fullpath.'/'.$fname;
1.523 raeburn 2409: }
1.995 raeburn 2410: if ($subdir eq 'scantron') {
2411: $fname = 'scantron_orig_'.$fname;
2412: } else {
1.258 www 2413: # Create the directory if not present
1.995 raeburn 2414: $fname="$subdir/$fname";
2415: }
1.259 www 2416: if ($coursedoc) {
1.638 albertel 2417: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2418: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2419: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2420: return &finishuserfileupload($docuname,$docudom,
2421: $formname,$fname,$parser,$allfiles,
1.1051 raeburn 2422: $codebase,$thumbwidth,$thumbheight,
2423: $resizewidth,$resizeheight);
1.481 raeburn 2424: } else {
1.620 albertel 2425: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2426: return &process_coursefile('uploaddoc',$docuname,$docudom,
2427: $fname,$formname,$parser,
2428: $allfiles,$codebase);
1.481 raeburn 2429: }
1.719 banghart 2430: } elsif (defined($destuname)) {
2431: my $docuname=$destuname;
2432: my $docudom=$destudom;
1.860 raeburn 2433: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2434: $parser,$allfiles,$codebase,
1.1051 raeburn 2435: $thumbwidth,$thumbheight,
2436: $resizewidth,$resizeheight);
1.719 banghart 2437:
1.259 www 2438: } else {
1.638 albertel 2439: my $docuname=$env{'user.name'};
2440: my $docudom=$env{'user.domain'};
1.714 raeburn 2441: if (exists($env{'form.group'})) {
2442: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2443: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2444: }
1.860 raeburn 2445: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2446: $parser,$allfiles,$codebase,
1.1051 raeburn 2447: $thumbwidth,$thumbheight,
2448: $resizewidth,$resizeheight);
1.259 www 2449: }
1.271 www 2450: }
2451:
2452: sub finishuserfileupload {
1.860 raeburn 2453: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1.1051 raeburn 2454: $thumbwidth,$thumbheight,$resizewidth,$resizeheight) = @_;
1.477 raeburn 2455: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2456: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2457:
1.860 raeburn 2458: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2459: $file=$fname;
2460: if ($fname=~m|/|) {
2461: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2462: $path.=$fnamepath.'/';
2463: }
1.259 www 2464: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2465: my $count;
2466: for ($count=4;$count<=$#parts;$count++) {
2467: $filepath.="/$parts[$count]";
2468: if ((-e $filepath)!=1) {
2469: mkdir($filepath,0777);
2470: }
2471: }
1.984 neumanie 2472:
1.258 www 2473: # Save the file
2474: {
1.701 albertel 2475: if (!open(FH,'>'.$filepath.'/'.$file)) {
2476: &logthis('Failed to create '.$filepath.'/'.$file);
2477: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2478: return '/adm/notfound.html';
2479: }
2480: if (!print FH ($env{'form.'.$formname})) {
2481: &logthis('Failed to write to '.$filepath.'/'.$file);
2482: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2483: return '/adm/notfound.html';
2484: }
1.570 albertel 2485: close(FH);
1.1051 raeburn 2486: if ($resizewidth && $resizeheight) {
2487: my $mm = new File::MMagic;
2488: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
2489: if ($mime_type =~ m{^image/}) {
2490: &resizeImage($filepath.'/'.$file,$resizewidth,$resizeheight);
2491: }
1.977 amueller 2492: }
1.258 www 2493: }
1.637 raeburn 2494: if ($parser eq 'parse') {
1.1024 raeburn 2495: my $mm = new File::MMagic;
2496: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
2497: if ($mime_type eq 'text/html') {
2498: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
2499: $allfiles,$codebase);
2500: unless ($parse_result eq 'ok') {
2501: &logthis('Failed to parse '.$filepath.$file.
2502: ' for embedded media: '.$parse_result);
2503: }
1.637 raeburn 2504: }
2505: }
1.860 raeburn 2506: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2507: my $input = $filepath.'/'.$file;
2508: my $output = $filepath.'/'.'tn-'.$file;
2509: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2510: system("convert -sample $thumbsize $input $output");
2511: if (-e $filepath.'/'.'tn-'.$file) {
2512: $fetchthumb = 1;
2513: }
2514: }
1.858 raeburn 2515:
1.259 www 2516: # Notify homeserver to grep it
2517: #
1.984 neumanie 2518: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2519: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2520: if ($fetchresult eq 'ok') {
1.860 raeburn 2521: if ($fetchthumb) {
2522: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2523: if ($thumbresult ne 'ok') {
2524: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2525: $docuhome.': '.$thumbresult);
2526: }
2527: }
1.259 www 2528: #
1.258 www 2529: # Return the URL to it
1.494 albertel 2530: return '/uploaded/'.$path.$file;
1.263 www 2531: } else {
1.494 albertel 2532: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2533: ': '.$fetchresult);
1.263 www 2534: return '/adm/notfound.html';
1.858 raeburn 2535: }
1.493 albertel 2536: }
2537:
1.637 raeburn 2538: sub extract_embedded_items {
1.961 raeburn 2539: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2540: my @state = ();
2541: my %javafiles = (
2542: codebase => '',
2543: code => '',
2544: archive => ''
2545: );
2546: my %mediafiles = (
2547: src => '',
2548: movie => '',
2549: );
1.648 raeburn 2550: my $p;
2551: if ($content) {
2552: $p = HTML::LCParser->new($content);
2553: } else {
1.961 raeburn 2554: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2555: }
1.641 albertel 2556: while (my $t=$p->get_token()) {
1.640 albertel 2557: if ($t->[0] eq 'S') {
2558: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2559: push(@state, $tagname);
1.648 raeburn 2560: if (lc($tagname) eq 'allow') {
2561: &add_filetype($allfiles,$attr->{'src'},'src');
2562: }
1.640 albertel 2563: if (lc($tagname) eq 'img') {
2564: &add_filetype($allfiles,$attr->{'src'},'src');
2565: }
1.886 albertel 2566: if (lc($tagname) eq 'a') {
2567: &add_filetype($allfiles,$attr->{'href'},'href');
2568: }
1.645 raeburn 2569: if (lc($tagname) eq 'script') {
2570: if ($attr->{'archive'} =~ /\.jar$/i) {
2571: &add_filetype($allfiles,$attr->{'archive'},'archive');
2572: } else {
2573: &add_filetype($allfiles,$attr->{'src'},'src');
2574: }
2575: }
2576: if (lc($tagname) eq 'link') {
2577: if (lc($attr->{'rel'}) eq 'stylesheet') {
2578: &add_filetype($allfiles,$attr->{'href'},'href');
2579: }
2580: }
1.640 albertel 2581: if (lc($tagname) eq 'object' ||
2582: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2583: foreach my $item (keys(%javafiles)) {
2584: $javafiles{$item} = '';
2585: }
2586: }
2587: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2588: my $name = lc($attr->{'name'});
2589: foreach my $item (keys(%javafiles)) {
2590: if ($name eq $item) {
2591: $javafiles{$item} = $attr->{'value'};
2592: last;
2593: }
2594: }
2595: foreach my $item (keys(%mediafiles)) {
2596: if ($name eq $item) {
2597: &add_filetype($allfiles, $attr->{'value'}, 'value');
2598: last;
2599: }
2600: }
2601: }
2602: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2603: foreach my $item (keys(%javafiles)) {
2604: if ($attr->{$item}) {
2605: $javafiles{$item} = $attr->{$item};
2606: last;
2607: }
2608: }
2609: foreach my $item (keys(%mediafiles)) {
2610: if ($attr->{$item}) {
2611: &add_filetype($allfiles,$attr->{$item},$item);
2612: last;
2613: }
2614: }
2615: }
2616: } elsif ($t->[0] eq 'E') {
2617: my ($tagname) = ($t->[1]);
2618: if ($javafiles{'codebase'} ne '') {
2619: $javafiles{'codebase'} .= '/';
2620: }
2621: if (lc($tagname) eq 'applet' ||
2622: lc($tagname) eq 'object' ||
2623: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2624: ) {
2625: foreach my $item (keys(%javafiles)) {
2626: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2627: my $file=$javafiles{'codebase'}.$javafiles{$item};
2628: &add_filetype($allfiles,$file,$item);
2629: }
2630: }
2631: }
2632: pop @state;
2633: }
2634: }
1.637 raeburn 2635: return 'ok';
2636: }
2637:
1.639 albertel 2638: sub add_filetype {
2639: my ($allfiles,$file,$type)=@_;
2640: if (exists($allfiles->{$file})) {
2641: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2642: push(@{$allfiles->{$file}}, &escape($type));
2643: }
2644: } else {
2645: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2646: }
2647: }
2648:
1.493 albertel 2649: sub removeuploadedurl {
1.984 neumanie 2650: my ($url)=@_;
2651: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2652: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2653: }
2654:
2655: sub removeuserfile {
2656: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 2657: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2658: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 2659: if ($result eq 'ok') {
1.798 raeburn 2660: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2661: my $metafile = $fname.'.meta';
2662: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2663: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 2664: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2665: my $sqlresult =
1.823 albertel 2666: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2667: 'portfolio_metadata',$group,
2668: 'delete');
1.798 raeburn 2669: }
2670: }
2671: return $result;
1.257 www 2672: }
1.15 www 2673:
1.530 albertel 2674: sub mkdiruserfile {
2675: my ($docuname,$docudom,$dir)=@_;
2676: my $home=&homeserver($docuname,$docudom);
2677: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2678: }
2679:
1.531 albertel 2680: sub renameuserfile {
2681: my ($docuname,$docudom,$old,$new)=@_;
2682: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2683: my $result = &reply("renameuserfile:$docudom:$docuname:".
2684: &escape("$old").':'.&escape("$new"),$home);
2685: if ($result eq 'ok') {
2686: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2687: my $oldmeta = $old.'.meta';
2688: my $newmeta = $new.'.meta';
2689: my $metaresult =
2690: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2691: my $url = "/uploaded/$docudom/$docuname/$old";
2692: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2693: my $sqlresult =
1.823 albertel 2694: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2695: 'portfolio_metadata',$group,
2696: 'delete');
1.798 raeburn 2697: }
2698: }
2699: return $result;
1.531 albertel 2700: }
2701:
1.14 www 2702: # ------------------------------------------------------------------------- Log
2703:
2704: sub log {
2705: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2706: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2707: }
2708:
2709: # ------------------------------------------------------------------ Course Log
1.352 www 2710: #
2711: # This routine flushes several buffers of non-mission-critical nature
2712: #
1.157 www 2713:
2714: sub flushcourselogs {
1.352 www 2715: &logthis('Flushing log buffers');
2716: #
2717: # course logs
2718: # This is a log of all transactions in a course, which can be used
2719: # for data mining purposes
2720: #
2721: # It also collects the courseid database, which lists last transaction
2722: # times and course titles for all courseids
2723: #
2724: my %courseidbuffer=();
1.921 raeburn 2725: foreach my $crsid (keys(%courselogs)) {
1.352 www 2726: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2727: &escape($courselogs{$crsid}),
2728: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2729: delete $courselogs{$crsid};
2730: } else {
2731: &logthis('Failed to flush log buffer for '.$crsid);
2732: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2733: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2734: " exceeded maximum size, deleting.</font>");
2735: delete $courselogs{$crsid};
2736: }
1.352 www 2737: }
1.920 raeburn 2738: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2739: 'description' => $coursedescrbuf{$crsid},
2740: 'inst_code' => $courseinstcodebuf{$crsid},
2741: 'type' => $coursetypebuf{$crsid},
2742: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2743: };
1.191 harris41 2744: }
1.352 www 2745: #
2746: # Write course id database (reverse lookup) to homeserver of courses
2747: # Is used in pickcourse
2748: #
1.840 albertel 2749: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2750: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2751: $courseidbuffer{$crs_home},
2752: $crs_home,'timeonly');
1.352 www 2753: }
2754: #
2755: # File accesses
2756: # Writes to the dynamic metadata of resources to get hit counts, etc.
2757: #
1.449 matthew 2758: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2759: if ($entry =~ /___count$/) {
2760: my ($dom,$name);
1.807 albertel 2761: ($dom,$name,undef)=
1.811 albertel 2762: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2763: if (! defined($dom) || $dom eq '' ||
2764: ! defined($name) || $name eq '') {
1.620 albertel 2765: my $cid = $env{'request.course.id'};
2766: $dom = $env{'request.'.$cid.'.domain'};
2767: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2768: }
1.450 matthew 2769: my $value = $accesshash{$entry};
2770: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2771: my %temphash=($url => $value);
1.449 matthew 2772: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2773: if ($result eq 'ok') {
2774: delete $accesshash{$entry};
2775: } elsif ($result eq 'unknown_cmd') {
2776: # Target server has old code running on it.
1.450 matthew 2777: my %temphash=($entry => $value);
1.449 matthew 2778: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2779: delete $accesshash{$entry};
2780: }
2781: }
2782: } else {
1.811 albertel 2783: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2784: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2785: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2786: delete $accesshash{$entry};
2787: }
1.185 www 2788: }
1.191 harris41 2789: }
1.352 www 2790: #
2791: # Roles
2792: # Reverse lookup of user roles for course faculty/staff and co-authorship
2793: #
1.800 albertel 2794: foreach my $entry (keys(%userrolehash)) {
1.351 www 2795: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2796: split(/\:/,$entry);
2797: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2798: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2799: $rudom,$runame) eq 'ok') {
2800: delete $userrolehash{$entry};
2801: }
2802: }
1.662 raeburn 2803: #
2804: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2805: #
2806: my %domrolebuffer = ();
1.1000 raeburn 2807: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 2808: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2809: if ($domrolebuffer{$rudom}) {
2810: $domrolebuffer{$rudom}.='&'.&escape($entry).
2811: '='.&escape($domainrolehash{$entry});
2812: } else {
2813: $domrolebuffer{$rudom}.=&escape($entry).
2814: '='.&escape($domainrolehash{$entry});
2815: }
2816: delete $domainrolehash{$entry};
2817: }
2818: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2819: my %servers = &get_servers($dom,'library');
2820: foreach my $tryserver (keys(%servers)) {
2821: unless (&reply('domroleput:'.$dom.':'.
2822: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2823: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2824: }
1.662 raeburn 2825: }
2826: }
1.186 www 2827: $dumpcount++;
1.157 www 2828: }
2829:
2830: sub courselog {
2831: my $what=shift;
1.158 www 2832: $what=time.':'.$what;
1.620 albertel 2833: unless ($env{'request.course.id'}) { return ''; }
2834: $coursedombuf{$env{'request.course.id'}}=
2835: $env{'course.'.$env{'request.course.id'}.'.domain'};
2836: $coursenumbuf{$env{'request.course.id'}}=
2837: $env{'course.'.$env{'request.course.id'}.'.num'};
2838: $coursehombuf{$env{'request.course.id'}}=
2839: $env{'course.'.$env{'request.course.id'}.'.home'};
2840: $coursedescrbuf{$env{'request.course.id'}}=
2841: $env{'course.'.$env{'request.course.id'}.'.description'};
2842: $courseinstcodebuf{$env{'request.course.id'}}=
2843: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2844: $courseownerbuf{$env{'request.course.id'}}=
2845: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2846: $coursetypebuf{$env{'request.course.id'}}=
2847: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2848: if (defined $courselogs{$env{'request.course.id'}}) {
2849: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2850: } else {
1.620 albertel 2851: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2852: }
1.620 albertel 2853: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2854: &flushcourselogs();
2855: }
1.158 www 2856: }
2857:
2858: sub courseacclog {
2859: my $fnsymb=shift;
1.620 albertel 2860: unless ($env{'request.course.id'}) { return ''; }
2861: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2862: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2863: $what.=':POST';
1.583 matthew 2864: # FIXME: Probably ought to escape things....
1.800 albertel 2865: foreach my $key (keys(%env)) {
2866: if ($key=~/^form\.(.*)/) {
1.975 raeburn 2867: my $formitem = $1;
2868: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
2869: $what.=':'.$formitem.'='.$env{$key};
2870: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
2871: $what.=':'.$formitem.'='.$env{$key};
2872: }
1.158 www 2873: }
1.191 harris41 2874: }
1.583 matthew 2875: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2876: # FIXME: We should not be depending on a form parameter that someone
2877: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2878: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2879: $what.= ':POST';
2880: # FIXME: Probably ought to escape things....
2881: foreach my $element ('courseexp','crsfulltext','crsrelated',
2882: 'crsdiscuss') {
1.620 albertel 2883: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2884: }
2885: }
1.158 www 2886: }
2887: &courselog($what);
1.149 www 2888: }
2889:
1.185 www 2890: sub countacc {
2891: my $url=&declutter(shift);
1.458 matthew 2892: return if (! defined($url) || $url eq '');
1.620 albertel 2893: unless ($env{'request.course.id'}) { return ''; }
2894: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2895: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2896: $accesshash{$key}++;
1.185 www 2897: }
1.349 www 2898:
1.361 www 2899: sub linklog {
2900: my ($from,$to)=@_;
2901: $from=&declutter($from);
2902: $to=&declutter($to);
2903: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2904: $accesshash{$to.'___'.$from.'___goto'}=1;
2905: }
2906:
1.349 www 2907: sub userrolelog {
2908: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2909: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2910: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2911: ($trole=~/^ep/) || ($trole=~/^cr/) ||
1.1041 raeburn 2912: ($trole=~/^ta/) || ($trole=~/^co/)) {
1.350 www 2913: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2914: $userrolehash
2915: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2916: =$tend.':'.$tstart;
1.662 raeburn 2917: }
1.898 albertel 2918: if (($env{'request.role'} =~ /dc\./) &&
2919: (($trole=~/^au/) || ($trole=~/^in/) ||
2920: ($trole=~/^cc/) || ($trole=~/^ep/) ||
1.1041 raeburn 2921: ($trole=~/^cr/) || ($trole=~/^ta/) ||
2922: ($trole=~/^co/))) {
1.898 albertel 2923: $userrolehash
2924: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2925: =$tend.':'.$tstart;
2926: }
1.662 raeburn 2927: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2928: ($trole=~/^li/) || ($trole=~/^li/) ||
2929: ($trole=~/^au/) || ($trole=~/^dg/) ||
2930: ($trole=~/^sc/)) {
2931: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2932: $domainrolehash
2933: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2934: = $tend.':'.$tstart;
2935: }
1.351 www 2936: }
2937:
1.957 raeburn 2938: sub courserolelog {
2939: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
2940: if (($trole eq 'cc') || ($trole eq 'in') ||
2941: ($trole eq 'ep') || ($trole eq 'ad') ||
2942: ($trole eq 'ta') || ($trole eq 'st') ||
1.1044 raeburn 2943: ($trole=~/^cr/) || ($trole eq 'gr') ||
2944: ($trole eq 'co')) {
1.957 raeburn 2945: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
2946: my $cdom = $1;
2947: my $cnum = $2;
2948: my $sec = $3;
2949: my $namespace = 'rolelog';
2950: my %storehash = (
2951: role => $trole,
2952: start => $tstart,
2953: end => $tend,
2954: selfenroll => $selfenroll,
2955: context => $context,
2956: );
2957: if ($trole eq 'gr') {
2958: $namespace = 'groupslog';
2959: $storehash{'group'} = $sec;
2960: } else {
2961: $storehash{'section'} = $sec;
2962: }
2963: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
1.996 raeburn 2964: if (($trole ne 'st') || ($sec ne '')) {
2965: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
2966: }
1.957 raeburn 2967: }
2968: }
2969: return;
2970: }
2971:
1.351 www 2972: sub get_course_adv_roles {
1.948 raeburn 2973: my ($cid,$codes) = @_;
1.620 albertel 2974: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2975: my %coursehash=&coursedescription($cid);
1.988 raeburn 2976: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 2977: my %nothide=();
1.800 albertel 2978: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 2979: if ($user !~ /:/) {
2980: $nothide{join(':',split(/[\@]/,$user))}=1;
2981: } else {
2982: $nothide{$user}=1;
2983: }
1.470 www 2984: }
1.351 www 2985: my %returnhash=();
2986: my %dumphash=
2987: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2988: my $now=time;
1.997 raeburn 2989: my %privileged;
1.1000 raeburn 2990: foreach my $entry (keys(%dumphash)) {
1.800 albertel 2991: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2992: if (($tstart) && ($tstart<0)) { next; }
2993: if (($tend) && ($tend<$now)) { next; }
2994: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2995: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2996: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 2997: unless (ref($privileged{$domain}) eq 'HASH') {
2998: my %dompersonnel =
1.998 raeburn 2999: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 3000: $privileged{$domain} = {};
3001: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 3002: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 3003: foreach my $user (keys(%{$dompersonnel{$server}})) {
3004: my ($trole,$uname,$udom) = split(/:/,$user);
3005: $privileged{$udom}{$uname} = 1;
3006: }
3007: }
3008: }
3009: }
3010: if ((exists($privileged{$domain}{$username})) &&
3011: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 3012: if ($role eq 'cr') { next; }
1.948 raeburn 3013: if ($codes) {
3014: if ($section) { $role .= ':'.$section; }
3015: if ($returnhash{$role}) {
3016: $returnhash{$role}.=','.$username.':'.$domain;
3017: } else {
3018: $returnhash{$role}=$username.':'.$domain;
3019: }
1.351 www 3020: } else {
1.988 raeburn 3021: my $key=&plaintext($role,$crstype);
1.973 bisitz 3022: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 3023: if ($returnhash{$key}) {
3024: $returnhash{$key}.=','.$username.':'.$domain;
3025: } else {
3026: $returnhash{$key}=$username.':'.$domain;
3027: }
1.351 www 3028: }
1.948 raeburn 3029: }
1.400 www 3030: return %returnhash;
3031: }
3032:
3033: sub get_my_roles {
1.937 raeburn 3034: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 3035: unless (defined($uname)) { $uname=$env{'user.name'}; }
3036: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 3037: my (%dumphash,%nothide);
1.858 raeburn 3038: if ($context eq 'userroles') {
3039: %dumphash = &dump('roles',$udom,$uname);
3040: } else {
3041: %dumphash=
1.400 www 3042: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 3043: if ($hidepriv) {
3044: my %coursehash=&coursedescription($udom.'_'.$uname);
3045: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
3046: if ($user !~ /:/) {
3047: $nothide{join(':',split(/[\@]/,$user))} = 1;
3048: } else {
3049: $nothide{$user} = 1;
3050: }
3051: }
3052: }
1.858 raeburn 3053: }
1.400 www 3054: my %returnhash=();
3055: my $now=time;
1.999 raeburn 3056: my %privileged;
1.800 albertel 3057: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 3058: my ($role,$tend,$tstart);
3059: if ($context eq 'userroles') {
3060: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
3061: } else {
3062: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
3063: }
1.400 www 3064: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 3065: my $status = 'active';
1.939 raeburn 3066: if (($tend) && ($tend<=$now)) {
1.832 raeburn 3067: $status = 'previous';
3068: }
3069: if (($tstart) && ($now<$tstart)) {
3070: $status = 'future';
3071: }
3072: if (ref($types) eq 'ARRAY') {
3073: if (!grep(/^\Q$status\E$/,@{$types})) {
3074: next;
3075: }
3076: } else {
3077: if ($status ne 'active') {
3078: next;
3079: }
3080: }
1.867 raeburn 3081: my ($rolecode,$username,$domain,$section,$area);
3082: if ($context eq 'userroles') {
3083: ($area,$rolecode) = split(/_/,$entry);
3084: (undef,$domain,$username,$section) = split(/\//,$area);
3085: } else {
3086: ($role,$username,$domain,$section) = split(/\:/,$entry);
3087: }
1.832 raeburn 3088: if (ref($roledoms) eq 'ARRAY') {
3089: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
3090: next;
3091: }
3092: }
3093: if (ref($roles) eq 'ARRAY') {
3094: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 3095: if ($role =~ /^cr\//) {
3096: if (!grep(/^cr$/,@{$roles})) {
3097: next;
3098: }
3099: } else {
3100: next;
3101: }
1.832 raeburn 3102: }
1.867 raeburn 3103: }
1.937 raeburn 3104: if ($hidepriv) {
1.999 raeburn 3105: if ($context eq 'userroles') {
3106: if ((&privileged($username,$domain)) &&
3107: (!$nothide{$username.':'.$domain})) {
3108: next;
3109: }
3110: } else {
3111: unless (ref($privileged{$domain}) eq 'HASH') {
3112: my %dompersonnel =
3113: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
3114: $privileged{$domain} = {};
3115: if (keys(%dompersonnel)) {
3116: foreach my $server (keys(%dompersonnel)) {
3117: if (ref($dompersonnel{$server}) eq 'HASH') {
3118: foreach my $user (keys(%{$dompersonnel{$server}})) {
3119: my ($trole,$uname,$udom) = split(/:/,$user);
3120: $privileged{$udom}{$uname} = $trole;
3121: }
3122: }
3123: }
3124: }
3125: }
3126: if (exists($privileged{$domain}{$username})) {
3127: if (!$nothide{$username.':'.$domain}) {
3128: next;
3129: }
3130: }
1.937 raeburn 3131: }
3132: }
1.933 raeburn 3133: if ($withsec) {
3134: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
3135: $tstart.':'.$tend;
3136: } else {
3137: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
3138: }
1.832 raeburn 3139: }
1.373 www 3140: return %returnhash;
1.399 www 3141: }
3142:
3143: # ----------------------------------------------------- Frontpage Announcements
3144: #
3145: #
3146:
3147: sub postannounce {
3148: my ($server,$text)=@_;
1.844 albertel 3149: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 3150: unless ($text=~/\w/) { $text=''; }
3151: return &reply('setannounce:'.&escape($text),$server);
3152: }
3153:
3154: sub getannounce {
1.448 albertel 3155:
3156: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 3157: my $announcement='';
1.800 albertel 3158: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 3159: close($fh);
1.399 www 3160: if ($announcement=~/\w/) {
3161: return
3162: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 3163: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 3164: } else {
3165: return '';
3166: }
3167: } else {
3168: return '';
3169: }
1.351 www 3170: }
1.353 www 3171:
3172: # ---------------------------------------------------------- Course ID routines
3173: # Deal with domain's nohist_courseid.db files
3174: #
3175:
3176: sub courseidput {
1.921 raeburn 3177: my ($domain,$storehash,$coursehome,$caller) = @_;
1.1054 raeburn 3178: return unless (ref($storehash) eq 'HASH');
1.921 raeburn 3179: my $outcome;
3180: if ($caller eq 'timeonly') {
3181: my $cids = '';
3182: foreach my $item (keys(%$storehash)) {
3183: $cids.=&escape($item).'&';
3184: }
3185: $cids=~s/\&$//;
3186: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
3187: $coursehome);
3188: } else {
3189: my $items = '';
3190: foreach my $item (keys(%$storehash)) {
3191: $items.= &escape($item).'='.
3192: &freeze_escape($$storehash{$item}).'&';
3193: }
3194: $items=~s/\&$//;
3195: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
3196: $coursehome);
1.918 raeburn 3197: }
3198: if ($outcome eq 'unknown_cmd') {
3199: my $what;
3200: foreach my $cid (keys(%$storehash)) {
3201: $what .= &escape($cid).'=';
1.921 raeburn 3202: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 3203: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 3204: }
3205: $what =~ s/\:$/&/;
3206: }
3207: $what =~ s/\&$//;
3208: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
3209: } else {
3210: return $outcome;
3211: }
1.353 www 3212: }
3213:
3214: sub courseiddump {
1.921 raeburn 3215: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 3216: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 3217: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
1.1071 raeburn 3218: $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
1.918 raeburn 3219: my $as_hash = 1;
3220: my %returnhash;
3221: if (!$domfilter) { $domfilter=''; }
1.845 albertel 3222: my %libserv = &all_library();
3223: foreach my $tryserver (keys(%libserv)) {
3224: if ( ( $hostidflag == 1
3225: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
3226: || (!defined($hostidflag)) ) {
3227:
1.918 raeburn 3228: if (($domfilter eq '') ||
3229: (&host_domain($tryserver) eq $domfilter)) {
3230: my $rep =
3231: &reply('courseiddump:'.&host_domain($tryserver).':'.
3232: $sincefilter.':'.&escape($descfilter).':'.
3233: &escape($instcodefilter).':'.&escape($ownerfilter).
3234: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 3235: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 3236: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 3237: $showhidden.':'.$caller.':'.&escape($cloner).':'.
1.1029 raeburn 3238: &escape($cc_clone).':'.$cloneonly.':'.
3239: &escape($createdbefore).':'.&escape($createdafter).':'.
1.1071 raeburn 3240: &escape($creationcontext).':'.$domcloner,
3241: $tryserver);
1.918 raeburn 3242: my @pairs=split(/\&/,$rep);
3243: foreach my $item (@pairs) {
3244: my ($key,$value)=split(/\=/,$item,2);
3245: $key = &unescape($key);
3246: next if ($key =~ /^error: 2 /);
3247: my $result = &thaw_unescape($value);
3248: if (ref($result) eq 'HASH') {
3249: $returnhash{$key}=$result;
3250: } else {
1.921 raeburn 3251: my @responses = split(/:/,$value);
3252: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3253: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3254: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3255: }
1.1008 raeburn 3256: }
1.353 www 3257: }
3258: }
3259: }
3260: }
3261: return %returnhash;
3262: }
3263:
1.1055 raeburn 3264: sub courselastaccess {
3265: my ($cdom,$cnum,$hostidref) = @_;
3266: my %returnhash;
3267: if ($cdom && $cnum) {
3268: my $chome = &homeserver($cnum,$cdom);
3269: if ($chome ne 'no_host') {
3270: my $rep = &reply('courselastaccess:'.$cdom.':'.$cnum,$chome);
3271: &extract_lastaccess(\%returnhash,$rep);
3272: }
3273: } else {
3274: if (!$cdom) { $cdom=''; }
3275: my %libserv = &all_library();
3276: foreach my $tryserver (keys(%libserv)) {
3277: if (ref($hostidref) eq 'ARRAY') {
3278: next unless (grep(/^\Q$tryserver\E$/,@{$hostidref}));
3279: }
3280: if (($cdom eq '') || (&host_domain($tryserver) eq $cdom)) {
3281: my $rep = &reply('courselastaccess:'.&host_domain($tryserver).':',$tryserver);
3282: &extract_lastaccess(\%returnhash,$rep);
3283: }
3284: }
3285: }
3286: return %returnhash;
3287: }
3288:
3289: sub extract_lastaccess {
3290: my ($returnhash,$rep) = @_;
3291: if (ref($returnhash) eq 'HASH') {
3292: unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
3293: $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
3294: $rep eq '') {
3295: my @pairs=split(/\&/,$rep);
3296: foreach my $item (@pairs) {
3297: my ($key,$value)=split(/\=/,$item,2);
3298: $key = &unescape($key);
3299: next if ($key =~ /^error: 2 /);
3300: $returnhash->{$key} = &thaw_unescape($value);
3301: }
3302: }
3303: }
3304: return;
3305: }
3306:
1.658 raeburn 3307: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3308:
3309: sub dcmailput {
1.685 raeburn 3310: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3311: my $status = &Apache::lonnet::critical(
1.740 www 3312: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3313: &escape($message),$server);
1.662 raeburn 3314: return $status;
3315: }
3316:
1.658 raeburn 3317: sub dcmaildump {
3318: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3319: my %returnhash=();
1.846 albertel 3320:
3321: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3322: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3323: &escape($enddate).':';
3324: my @esc_senders=map { &escape($_)} @$senders;
3325: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3326: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3327: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3328: if (($key) && ($value)) {
3329: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3330: }
3331: }
3332: }
3333: return %returnhash;
3334: }
1.662 raeburn 3335: # ---------------------------------------------------------- Domain roles
3336:
3337: sub get_domain_roles {
3338: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 3339: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 3340: $startdate = '.';
3341: }
1.1018 raeburn 3342: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 3343: $enddate = '.';
3344: }
1.922 raeburn 3345: my $rolelist;
3346: if (ref($roles) eq 'ARRAY') {
3347: $rolelist = join(':',@{$roles});
3348: }
1.662 raeburn 3349: my %personnel = ();
1.841 albertel 3350:
3351: my %servers = &get_servers($dom,'library');
3352: foreach my $tryserver (keys(%servers)) {
3353: %{$personnel{$tryserver}}=();
3354: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3355: &escape($startdate).':'.
3356: &escape($enddate).':'.
3357: &escape($rolelist), $tryserver))) {
3358: my ($key,$value) = split(/\=/,$line,2);
3359: if (($key) && ($value)) {
3360: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3361: }
3362: }
1.662 raeburn 3363: }
3364: return %personnel;
3365: }
1.658 raeburn 3366:
1.1057 www 3367: # ----------------------------------------------------------- Interval timing
1.149 www 3368:
1.504 albertel 3369: sub get_first_access {
3370: my ($type,$argsymb)=@_;
1.790 albertel 3371: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3372: if ($argsymb) { $symb=$argsymb; }
3373: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 3374: if ($type eq 'course') {
3375: $res='course';
3376: } elsif ($type eq 'map') {
1.588 albertel 3377: $res=&symbread($map);
3378: } else {
3379: $res=$symb;
3380: }
3381: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
3382: return $times{"$courseid\0$res"};
1.504 albertel 3383: }
3384:
3385: sub set_first_access {
3386: my ($type)=@_;
1.790 albertel 3387: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3388: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 3389: if ($type eq 'course') {
3390: $res='course';
3391: } elsif ($type eq 'map') {
1.588 albertel 3392: $res=&symbread($map);
3393: } else {
3394: $res=$symb;
3395: }
3396: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 3397: if (!$firstaccess) {
1.588 albertel 3398: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 3399: }
3400: return 'already_set';
1.504 albertel 3401: }
3402:
1.110 www 3403: # --------------------------------------------- Set Expire Date for Spreadsheet
3404:
3405: sub expirespread {
3406: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 3407: my $cid=$env{'request.course.id'};
1.110 www 3408: if ($cid) {
3409: my $now=time;
3410: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3411: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3412: $env{'course.'.$cid.'.num'}.
1.110 www 3413: ':nohist_expirationdates:'.
3414: &escape($key).'='.$now,
1.620 albertel 3415: $env{'course.'.$cid.'.home'})
1.110 www 3416: }
3417: return 'ok';
1.14 www 3418: }
3419:
1.109 www 3420: # ----------------------------------------------------- Devalidate Spreadsheets
3421:
3422: sub devalidate {
1.325 www 3423: my ($symb,$uname,$udom)=@_;
1.620 albertel 3424: my $cid=$env{'request.course.id'};
1.109 www 3425: if ($cid) {
1.391 matthew 3426: # delete the stored spreadsheets for
3427: # - the student level sheet of this user in course's homespace
3428: # - the assessment level sheet for this resource
3429: # for this user in user's homespace
1.553 albertel 3430: # - current conditional state info
1.325 www 3431: my $key=$uname.':'.$udom.':';
1.109 www 3432: my $status=
1.299 matthew 3433: &del('nohist_calculatedsheets',
1.391 matthew 3434: [$key.'studentcalc:'],
1.620 albertel 3435: $env{'course.'.$cid.'.domain'},
3436: $env{'course.'.$cid.'.num'})
1.133 albertel 3437: .' '.
3438: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3439: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3440: unless ($status eq 'ok ok') {
3441: &logthis('Could not devalidate spreadsheet '.
1.325 www 3442: $uname.' at '.$udom.' for '.
1.109 www 3443: $symb.': '.$status);
1.133 albertel 3444: }
1.553 albertel 3445: &delenv('user.state.'.$cid);
1.109 www 3446: }
3447: }
3448:
1.265 albertel 3449: sub get_scalar {
3450: my ($string,$end) = @_;
3451: my $value;
3452: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3453: $value = $1;
3454: } elsif ($$string =~ s/^([^&]*?)&//) {
3455: $value = $1;
3456: }
3457: return &unescape($value);
3458: }
3459:
3460: sub array2str {
3461: my (@array) = @_;
3462: my $result=&arrayref2str(\@array);
3463: $result=~s/^__ARRAY_REF__//;
3464: $result=~s/__END_ARRAY_REF__$//;
3465: return $result;
3466: }
3467:
1.204 albertel 3468: sub arrayref2str {
3469: my ($arrayref) = @_;
1.265 albertel 3470: my $result='__ARRAY_REF__';
1.204 albertel 3471: foreach my $elem (@$arrayref) {
1.265 albertel 3472: if(ref($elem) eq 'ARRAY') {
3473: $result.=&arrayref2str($elem).'&';
3474: } elsif(ref($elem) eq 'HASH') {
3475: $result.=&hashref2str($elem).'&';
3476: } elsif(ref($elem)) {
3477: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3478: } else {
3479: $result.=&escape($elem).'&';
3480: }
3481: }
3482: $result=~s/\&$//;
1.265 albertel 3483: $result .= '__END_ARRAY_REF__';
1.204 albertel 3484: return $result;
3485: }
3486:
1.168 albertel 3487: sub hash2str {
1.204 albertel 3488: my (%hash) = @_;
3489: my $result=&hashref2str(\%hash);
1.265 albertel 3490: $result=~s/^__HASH_REF__//;
3491: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3492: return $result;
3493: }
3494:
3495: sub hashref2str {
3496: my ($hashref)=@_;
1.265 albertel 3497: my $result='__HASH_REF__';
1.800 albertel 3498: foreach my $key (sort(keys(%$hashref))) {
3499: if (ref($key) eq 'ARRAY') {
3500: $result.=&arrayref2str($key).'=';
3501: } elsif (ref($key) eq 'HASH') {
3502: $result.=&hashref2str($key).'=';
3503: } elsif (ref($key)) {
1.265 albertel 3504: $result.='=';
1.800 albertel 3505: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3506: } else {
1.800 albertel 3507: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3508: }
3509:
1.800 albertel 3510: if(ref($hashref->{$key}) eq 'ARRAY') {
3511: $result.=&arrayref2str($hashref->{$key}).'&';
3512: } elsif(ref($hashref->{$key}) eq 'HASH') {
3513: $result.=&hashref2str($hashref->{$key}).'&';
3514: } elsif(ref($hashref->{$key})) {
1.265 albertel 3515: $result.='&';
1.800 albertel 3516: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3517: } else {
1.800 albertel 3518: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3519: }
3520: }
1.168 albertel 3521: $result=~s/\&$//;
1.265 albertel 3522: $result .= '__END_HASH_REF__';
1.168 albertel 3523: return $result;
3524: }
3525:
3526: sub str2hash {
1.265 albertel 3527: my ($string)=@_;
3528: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3529: return %$hash;
3530: }
3531:
3532: sub str2hashref {
1.168 albertel 3533: my ($string) = @_;
1.265 albertel 3534:
3535: my %hash;
3536:
3537: if($string !~ /^__HASH_REF__/) {
3538: if (! ($string eq '' || !defined($string))) {
3539: $hash{'error'}='Not hash reference';
3540: }
3541: return (\%hash, $string);
3542: }
3543:
3544: $string =~ s/^__HASH_REF__//;
3545:
3546: while($string !~ /^__END_HASH_REF__/) {
3547: #key
3548: my $key='';
3549: if($string =~ /^__HASH_REF__/) {
3550: ($key, $string)=&str2hashref($string);
3551: if(defined($key->{'error'})) {
3552: $hash{'error'}='Bad data';
3553: return (\%hash, $string);
3554: }
3555: } elsif($string =~ /^__ARRAY_REF__/) {
3556: ($key, $string)=&str2arrayref($string);
3557: if($key->[0] eq 'Array reference error') {
3558: $hash{'error'}='Bad data';
3559: return (\%hash, $string);
3560: }
3561: } else {
3562: $string =~ s/^(.*?)=//;
1.267 albertel 3563: $key=&unescape($1);
1.265 albertel 3564: }
3565: $string =~ s/^=//;
3566:
3567: #value
3568: my $value='';
3569: if($string =~ /^__HASH_REF__/) {
3570: ($value, $string)=&str2hashref($string);
3571: if(defined($value->{'error'})) {
3572: $hash{'error'}='Bad data';
3573: return (\%hash, $string);
3574: }
3575: } elsif($string =~ /^__ARRAY_REF__/) {
3576: ($value, $string)=&str2arrayref($string);
3577: if($value->[0] eq 'Array reference error') {
3578: $hash{'error'}='Bad data';
3579: return (\%hash, $string);
3580: }
3581: } else {
3582: $value=&get_scalar(\$string,'__END_HASH_REF__');
3583: }
3584: $string =~ s/^&//;
3585:
3586: $hash{$key}=$value;
1.204 albertel 3587: }
1.265 albertel 3588:
3589: $string =~ s/^__END_HASH_REF__//;
3590:
3591: return (\%hash, $string);
1.204 albertel 3592: }
3593:
3594: sub str2array {
1.265 albertel 3595: my ($string)=@_;
3596: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3597: return @$array;
3598: }
3599:
3600: sub str2arrayref {
1.204 albertel 3601: my ($string) = @_;
1.265 albertel 3602: my @array;
3603:
3604: if($string !~ /^__ARRAY_REF__/) {
3605: if (! ($string eq '' || !defined($string))) {
3606: $array[0]='Array reference error';
3607: }
3608: return (\@array, $string);
3609: }
3610:
3611: $string =~ s/^__ARRAY_REF__//;
3612:
3613: while($string !~ /^__END_ARRAY_REF__/) {
3614: my $value='';
3615: if($string =~ /^__HASH_REF__/) {
3616: ($value, $string)=&str2hashref($string);
3617: if(defined($value->{'error'})) {
3618: $array[0] ='Array reference error';
3619: return (\@array, $string);
3620: }
3621: } elsif($string =~ /^__ARRAY_REF__/) {
3622: ($value, $string)=&str2arrayref($string);
3623: if($value->[0] eq 'Array reference error') {
3624: $array[0] ='Array reference error';
3625: return (\@array, $string);
3626: }
3627: } else {
3628: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3629: }
3630: $string =~ s/^&//;
3631:
3632: push(@array, $value);
1.191 harris41 3633: }
1.265 albertel 3634:
3635: $string =~ s/^__END_ARRAY_REF__//;
3636:
3637: return (\@array, $string);
1.168 albertel 3638: }
3639:
1.167 albertel 3640: # -------------------------------------------------------------------Temp Store
3641:
1.168 albertel 3642: sub tmpreset {
3643: my ($symb,$namespace,$domain,$stuname) = @_;
3644: if (!$symb) {
3645: $symb=&symbread();
1.620 albertel 3646: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3647: }
3648: $symb=escape($symb);
3649:
1.620 albertel 3650: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3651: $namespace=~s/\//\_/g;
3652: $namespace=~s/\W//g;
3653:
1.620 albertel 3654: if (!$domain) { $domain=$env{'user.domain'}; }
3655: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3656: if ($domain eq 'public' && $stuname eq 'public') {
3657: $stuname=$ENV{'REMOTE_ADDR'};
3658: }
1.168 albertel 3659: my $path=$perlvar{'lonDaemons'}.'/tmp';
3660: my %hash;
3661: if (tie(%hash,'GDBM_File',
3662: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3663: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 3664: foreach my $key (keys(%hash)) {
1.180 albertel 3665: if ($key=~ /:$symb/) {
1.168 albertel 3666: delete($hash{$key});
3667: }
3668: }
3669: }
3670: }
3671:
1.167 albertel 3672: sub tmpstore {
1.168 albertel 3673: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3674:
3675: if (!$symb) {
3676: $symb=&symbread();
1.620 albertel 3677: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3678: }
3679: $symb=escape($symb);
3680:
3681: if (!$namespace) {
3682: # I don't think we would ever want to store this for a course.
3683: # it seems this will only be used if we don't have a course.
1.620 albertel 3684: #$namespace=$env{'request.course.id'};
1.168 albertel 3685: #if (!$namespace) {
1.620 albertel 3686: $namespace=$env{'request.state'};
1.168 albertel 3687: #}
3688: }
3689: $namespace=~s/\//\_/g;
3690: $namespace=~s/\W//g;
1.620 albertel 3691: if (!$domain) { $domain=$env{'user.domain'}; }
3692: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3693: if ($domain eq 'public' && $stuname eq 'public') {
3694: $stuname=$ENV{'REMOTE_ADDR'};
3695: }
1.168 albertel 3696: my $now=time;
3697: my %hash;
3698: my $path=$perlvar{'lonDaemons'}.'/tmp';
3699: if (tie(%hash,'GDBM_File',
3700: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3701: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3702: $hash{"version:$symb"}++;
3703: my $version=$hash{"version:$symb"};
3704: my $allkeys='';
3705: foreach my $key (keys(%$storehash)) {
3706: $allkeys.=$key.':';
1.591 albertel 3707: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3708: }
3709: $hash{"$version:$symb:timestamp"}=$now;
3710: $allkeys.='timestamp';
3711: $hash{"$version:keys:$symb"}=$allkeys;
3712: if (untie(%hash)) {
3713: return 'ok';
3714: } else {
3715: return "error:$!";
3716: }
3717: } else {
3718: return "error:$!";
3719: }
3720: }
1.167 albertel 3721:
1.168 albertel 3722: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3723:
1.168 albertel 3724: sub tmprestore {
3725: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3726:
1.168 albertel 3727: if (!$symb) {
3728: $symb=&symbread();
1.620 albertel 3729: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3730: }
3731: $symb=escape($symb);
3732:
1.620 albertel 3733: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3734:
1.620 albertel 3735: if (!$domain) { $domain=$env{'user.domain'}; }
3736: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3737: if ($domain eq 'public' && $stuname eq 'public') {
3738: $stuname=$ENV{'REMOTE_ADDR'};
3739: }
1.168 albertel 3740: my %returnhash;
3741: $namespace=~s/\//\_/g;
3742: $namespace=~s/\W//g;
3743: my %hash;
3744: my $path=$perlvar{'lonDaemons'}.'/tmp';
3745: if (tie(%hash,'GDBM_File',
3746: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3747: &GDBM_READER(),0640)) {
1.168 albertel 3748: my $version=$hash{"version:$symb"};
3749: $returnhash{'version'}=$version;
3750: my $scope;
3751: for ($scope=1;$scope<=$version;$scope++) {
3752: my $vkeys=$hash{"$scope:keys:$symb"};
3753: my @keys=split(/:/,$vkeys);
3754: my $key;
3755: $returnhash{"$scope:keys"}=$vkeys;
3756: foreach $key (@keys) {
1.591 albertel 3757: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3758: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3759: }
3760: }
1.168 albertel 3761: if (!(untie(%hash))) {
3762: return "error:$!";
3763: }
3764: } else {
3765: return "error:$!";
3766: }
3767: return %returnhash;
1.167 albertel 3768: }
3769:
1.9 www 3770: # ----------------------------------------------------------------------- Store
3771:
3772: sub store {
1.124 www 3773: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3774: my $home='';
3775:
1.168 albertel 3776: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3777:
1.213 www 3778: $symb=&symbclean($symb);
1.122 albertel 3779: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3780:
1.620 albertel 3781: if (!$domain) { $domain=$env{'user.domain'}; }
3782: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3783:
3784: &devalidate($symb,$stuname,$domain);
1.109 www 3785:
3786: $symb=escape($symb);
1.187 www 3787: if (!$namespace) {
1.620 albertel 3788: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3789: return '';
3790: }
3791: }
1.620 albertel 3792: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3793:
3794: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3795: $$storehash{'host'}=$perlvar{'lonHostID'};
3796:
1.12 www 3797: my $namevalue='';
1.800 albertel 3798: foreach my $key (keys(%$storehash)) {
3799: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3800: }
1.12 www 3801: $namevalue=~s/\&$//;
1.187 www 3802: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3803: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3804: }
3805:
1.47 www 3806: # -------------------------------------------------------------- Critical Store
3807:
3808: sub cstore {
1.124 www 3809: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3810: my $home='';
3811:
1.168 albertel 3812: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3813:
1.213 www 3814: $symb=&symbclean($symb);
1.122 albertel 3815: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3816:
1.620 albertel 3817: if (!$domain) { $domain=$env{'user.domain'}; }
3818: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3819:
3820: &devalidate($symb,$stuname,$domain);
1.109 www 3821:
3822: $symb=escape($symb);
1.187 www 3823: if (!$namespace) {
1.620 albertel 3824: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3825: return '';
3826: }
3827: }
1.620 albertel 3828: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3829:
3830: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3831: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3832:
1.47 www 3833: my $namevalue='';
1.800 albertel 3834: foreach my $key (keys(%$storehash)) {
3835: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3836: }
1.47 www 3837: $namevalue=~s/\&$//;
1.187 www 3838: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3839: return critical
3840: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3841: }
3842:
1.9 www 3843: # --------------------------------------------------------------------- Restore
3844:
3845: sub restore {
1.124 www 3846: my ($symb,$namespace,$domain,$stuname) = @_;
3847: my $home='';
3848:
1.168 albertel 3849: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3850:
1.122 albertel 3851: if (!$symb) {
3852: unless ($symb=escape(&symbread())) { return ''; }
3853: } else {
1.213 www 3854: $symb=&escape(&symbclean($symb));
1.122 albertel 3855: }
1.188 www 3856: if (!$namespace) {
1.620 albertel 3857: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3858: return '';
3859: }
3860: }
1.620 albertel 3861: if (!$domain) { $domain=$env{'user.domain'}; }
3862: if (!$stuname) { $stuname=$env{'user.name'}; }
3863: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3864: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3865:
1.12 www 3866: my %returnhash=();
1.800 albertel 3867: foreach my $line (split(/\&/,$answer)) {
3868: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3869: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3870: }
1.75 www 3871: my $version;
3872: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3873: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3874: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3875: }
1.75 www 3876: }
1.13 www 3877: return %returnhash;
1.34 www 3878: }
3879:
3880: # ---------------------------------------------------------- Course Description
3881:
3882: sub coursedescription {
1.731 albertel 3883: my ($courseid,$args)=@_;
1.34 www 3884: $courseid=~s/^\///;
1.49 www 3885: $courseid=~s/\_/\//g;
1.34 www 3886: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3887: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3888: my $normalid=$cdomain.'_'.$cnum;
3889: # need to always cache even if we get errors otherwise we keep
3890: # trying and trying and trying to get the course description.
3891: my %envhash=();
3892: my %returnhash=();
1.731 albertel 3893:
3894: my $expiretime=600;
3895: if ($env{'request.course.id'} eq $normalid) {
3896: $expiretime=120;
3897: }
3898:
3899: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3900: if (!$args->{'freshen_cache'}
3901: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3902: foreach my $key (keys(%env)) {
3903: next if ($key !~ /^\Q$prefix\E(.*)/);
3904: my ($setting) = $1;
3905: $returnhash{$setting} = $env{$key};
3906: }
3907: return %returnhash;
3908: }
3909:
3910: # get the data agin
3911: if (!$args->{'one_time'}) {
3912: $envhash{'course.'.$normalid.'.last_cache'}=time;
3913: }
1.811 albertel 3914:
1.34 www 3915: if ($chome ne 'no_host') {
1.302 albertel 3916: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3917: if (!exists($returnhash{'con_lost'})) {
3918: $returnhash{'home'}= $chome;
3919: $returnhash{'domain'} = $cdomain;
3920: $returnhash{'num'} = $cnum;
1.741 raeburn 3921: if (!defined($returnhash{'type'})) {
3922: $returnhash{'type'} = 'Course';
3923: }
1.130 albertel 3924: while (my ($name,$value) = each %returnhash) {
1.53 www 3925: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3926: }
1.270 www 3927: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3928: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3929: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3930: $envhash{'course.'.$normalid.'.home'}=$chome;
3931: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3932: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3933: }
3934: }
1.731 albertel 3935: if (!$args->{'one_time'}) {
1.949 raeburn 3936: &appenv(\%envhash);
1.731 albertel 3937: }
1.302 albertel 3938: return %returnhash;
1.461 www 3939: }
3940:
1.1080 raeburn 3941: sub update_released_required {
3942: my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
3943: if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
3944: $cid = $env{'request.course.id'};
3945: $cdom = $env{'course.'.$cid.'.domain'};
3946: $cnum = $env{'course.'.$cid.'.num'};
3947: $chome = $env{'course.'.$cid.'.home'};
3948: }
3949: if ($needsrelease) {
3950: my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
3951: my $needsupdate;
3952: if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
3953: $needsupdate = 1;
3954: } else {
3955: my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
3956: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
3957: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
3958: $needsupdate = 1;
3959: }
3960: }
3961: if ($needsupdate) {
3962: my %needshash = (
3963: 'internal.releaserequired' => $needsrelease,
3964: );
3965: my $putresult = &put('environment',\%needshash,$cdom,$cnum);
3966: if ($putresult eq 'ok') {
3967: &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
3968: my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
3969: if (ref($crsinfo{$cid}) eq 'HASH') {
3970: $crsinfo{$cid}{'releaserequired'} = $needsrelease;
3971: &courseidput($cdom,\%crsinfo,$chome,'notime');
3972: }
3973: }
3974: }
3975: }
3976: return;
3977: }
3978:
1.461 www 3979: # -------------------------------------------------See if a user is privileged
3980:
3981: sub privileged {
3982: my ($username,$domain)=@_;
3983: my $rolesdump=&reply("dump:$domain:$username:roles",
3984: &homeserver($username,$domain));
1.1033 raeburn 3985: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
3986: ($rolesdump =~ /^error:/)) {
3987: return 0;
3988: }
1.461 www 3989: my $now=time;
3990: if ($rolesdump ne '') {
1.800 albertel 3991: foreach my $entry (split(/&/,$rolesdump)) {
3992: if ($entry!~/^rolesdef_/) {
3993: my ($area,$role)=split(/=/,$entry);
1.461 www 3994: $area=~s/\_\w\w$//;
3995: my ($trole,$tend,$tstart)=split(/_/,$role);
3996: if (($trole eq 'dc') || ($trole eq 'su')) {
3997: my $active=1;
3998: if ($tend) {
3999: if ($tend<$now) { $active=0; }
4000: }
4001: if ($tstart) {
4002: if ($tstart>$now) { $active=0; }
4003: }
4004: if ($active) { return 1; }
4005: }
4006: }
4007: }
4008: }
4009: return 0;
1.9 www 4010: }
1.1 albertel 4011:
1.103 harris41 4012: # -------------------------------------------------------- Get user privileges
1.11 www 4013:
4014: sub rolesinit {
4015: my ($domain,$username,$authhost)=@_;
1.1034 raeburn 4016: my $now=time;
4017: my %userroles = ('user.login.time' => $now);
1.1078 raeburn 4018: my $extra = &freeze_escape({'clientcheckrole' => 1});
4019: my $rolesdump=reply("dump:$domain:$username:roles:.::$extra",$authhost);
1.1033 raeburn 4020: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
1.1078 raeburn 4021: ($rolesdump =~ /^error:/)) {
1.1033 raeburn 4022: return \%userroles;
4023: }
1.11 www 4024: my %allroles=();
1.678 raeburn 4025: my %allgroups=();
4026: my $group_privs;
1.11 www 4027:
4028: if ($rolesdump ne '') {
1.800 albertel 4029: foreach my $entry (split(/&/,$rolesdump)) {
4030: if ($entry!~/^rolesdef_/) {
4031: my ($area,$role)=split(/=/,$entry);
1.587 albertel 4032: $area=~s/\_\w\w$//;
1.678 raeburn 4033: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 4034: if ($role=~/^cr/) {
1.807 albertel 4035: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
4036: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 4037: ($tend,$tstart)=split('_',$trest);
4038: } else {
4039: $trole=$role;
4040: }
1.678 raeburn 4041: } elsif ($role =~ m|^gr/|) {
4042: ($trole,$tend,$tstart) = split(/_/,$role);
4043: ($trole,$group_privs) = split(/\//,$trole);
4044: $group_privs = &unescape($group_privs);
1.587 albertel 4045: } else {
4046: ($trole,$tend,$tstart)=split(/_/,$role);
4047: }
1.743 albertel 4048: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
4049: $username);
4050: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 4051: if (($tend!=0) && ($tend<$now)) { $trole=''; }
4052: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 4053: if (($area ne '') && ($trole ne '')) {
1.347 albertel 4054: my $spec=$trole.'.'.$area;
4055: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
4056: if ($trole =~ /^cr\//) {
1.567 raeburn 4057: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 4058: } elsif ($trole eq 'gr') {
4059: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 4060: } else {
1.567 raeburn 4061: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 4062: }
1.12 www 4063: }
1.662 raeburn 4064: }
1.191 harris41 4065: }
1.743 albertel 4066: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
4067: $userroles{'user.adv'} = $adv;
4068: $userroles{'user.author'} = $author;
1.620 albertel 4069: $env{'user.adv'}=$adv;
1.11 www 4070: }
1.743 albertel 4071: return \%userroles;
1.11 www 4072: }
4073:
1.567 raeburn 4074: sub set_arearole {
4075: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
4076: # log the associated role with the area
4077: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 4078: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 4079: }
4080:
4081: sub custom_roleprivs {
4082: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
4083: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
4084: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 4085: if (&hostname($homsvr) ne '') {
1.567 raeburn 4086: my ($rdummy,$roledef)=
4087: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
4088: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
4089: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
4090: if (defined($syspriv)) {
1.1043 raeburn 4091: if ($trest =~ /^$match_community$/) {
4092: $syspriv =~ s/bre\&S//;
4093: }
1.567 raeburn 4094: $$allroles{'cm./'}.=':'.$syspriv;
4095: $$allroles{$spec.'./'}.=':'.$syspriv;
4096: }
4097: if ($tdomain ne '') {
4098: if (defined($dompriv)) {
4099: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
4100: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
4101: }
4102: if (($trest ne '') && (defined($coursepriv))) {
4103: $$allroles{'cm.'.$area}.=':'.$coursepriv;
4104: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
4105: }
4106: }
4107: }
4108: }
4109: }
4110:
1.678 raeburn 4111: sub group_roleprivs {
4112: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
4113: my $access = 1;
4114: my $now = time;
4115: if (($tend!=0) && ($tend<$now)) { $access = 0; }
4116: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
4117: if ($access) {
1.811 albertel 4118: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 4119: $$allgroups{$course}{$group} .=':'.$group_privs;
4120: }
4121: }
1.567 raeburn 4122:
4123: sub standard_roleprivs {
4124: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
4125: if (defined($pr{$trole.':s'})) {
4126: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
4127: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
4128: }
4129: if ($tdomain ne '') {
4130: if (defined($pr{$trole.':d'})) {
4131: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4132: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
4133: }
4134: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
4135: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
4136: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
4137: }
4138: }
4139: }
4140:
4141: sub set_userprivs {
1.1064 raeburn 4142: my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
1.567 raeburn 4143: my $author=0;
4144: my $adv=0;
1.678 raeburn 4145: my %grouproles = ();
4146: if (keys(%{$allgroups}) > 0) {
1.1064 raeburn 4147: my @groupkeys;
1.1000 raeburn 4148: foreach my $role (keys(%{$allroles})) {
1.1064 raeburn 4149: push(@groupkeys,$role);
4150: }
4151: if (ref($groups_roles) eq 'HASH') {
4152: foreach my $key (keys(%{$groups_roles})) {
4153: unless (grep(/^\Q$key\E$/,@groupkeys)) {
4154: push(@groupkeys,$key);
4155: }
4156: }
4157: }
4158: if (@groupkeys > 0) {
4159: foreach my $role (@groupkeys) {
4160: my ($trole,$area,$sec,$extendedarea);
4161: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
4162: $trole = $1;
4163: $area = $2;
4164: $sec = $3;
4165: $extendedarea = $area.$sec;
4166: if (exists($$allgroups{$area})) {
4167: foreach my $group (keys(%{$$allgroups{$area}})) {
4168: my $spec = $trole.'.'.$extendedarea;
4169: $grouproles{$spec.'.'.$area.'/'.$group} =
1.681 raeburn 4170: $$allgroups{$area}{$group};
1.1064 raeburn 4171: }
1.678 raeburn 4172: }
4173: }
4174: }
4175: }
4176: }
1.800 albertel 4177: foreach my $group (keys(%grouproles)) {
4178: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 4179: }
1.800 albertel 4180: foreach my $role (keys(%{$allroles})) {
4181: my %thesepriv;
1.941 raeburn 4182: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 4183: foreach my $item (split(/:/,$$allroles{$role})) {
4184: if ($item ne '') {
4185: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 4186: if ($restrictions eq '') {
4187: $thesepriv{$privilege}='F';
4188: } elsif ($thesepriv{$privilege} ne 'F') {
4189: $thesepriv{$privilege}.=$restrictions;
4190: }
4191: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
4192: }
4193: }
4194: my $thesestr='';
1.800 albertel 4195: foreach my $priv (keys(%thesepriv)) {
4196: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
4197: }
4198: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 4199: }
4200: return ($author,$adv);
4201: }
4202:
1.994 raeburn 4203: sub role_status {
1.1002 raeburn 4204: my ($rolekey,$then,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 4205: my @pwhere = ();
4206: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
4207: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
4208: unless (!defined($$role) || $$role eq '') {
4209: $$where=join('.',@pwhere);
4210: $$trolecode=$$role.'.'.$$where;
4211: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
4212: $$tstatus='is';
4213: if ($$tstart && $$tstart>$then) {
4214: $$tstatus='future';
1.1034 raeburn 4215: if ($$tstart<$now) {
4216: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 4217: if (($$where ne '') && ($$role ne '')) {
1.1064 raeburn 4218: my (%allroles,%allgroups,$group_privs,
4219: %groups_roles,@rolecodes);
1.1002 raeburn 4220: my %userroles = (
4221: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
4222: );
1.1064 raeburn 4223: @rolecodes = ('cm');
1.1002 raeburn 4224: my $spec=$$role.'.'.$$where;
4225: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
4226: if ($$role =~ /^cr\//) {
4227: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
1.1064 raeburn 4228: push(@rolecodes,'cr');
1.1002 raeburn 4229: } elsif ($$role eq 'gr') {
1.1064 raeburn 4230: push(@rolecodes,$$role);
1.1002 raeburn 4231: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4232: $env{'user.name'});
1.1064 raeburn 4233: my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
1.1002 raeburn 4234: (undef,my $group_privs) = split(/\//,$trole);
4235: $group_privs = &unescape($group_privs);
4236: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
1.1064 raeburn 4237: my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
4238: if (keys(%course_roles) > 0) {
4239: my ($tnum) = ($trest =~ /^($match_courseid)/);
4240: if ($tdomain ne '' && $tnum ne '') {
4241: foreach my $key (keys(%course_roles)) {
4242: if ($key =~ /^\Q$tnum\E:\Q$tdomain\E:([^:]+):?([^:]*)/) {
4243: my $crsrole = $1;
4244: my $crssec = $2;
4245: if ($crsrole =~ /^cr/) {
4246: unless (grep(/^cr$/,@rolecodes)) {
4247: push(@rolecodes,'cr');
4248: }
4249: } else {
4250: unless(grep(/^\Q$crsrole\E$/,@rolecodes)) {
4251: push(@rolecodes,$crsrole);
4252: }
4253: }
4254: my $rolekey = $crsrole.'./'.$tdomain.'/'.$tnum;
4255: if ($crssec ne '') {
4256: $rolekey .= '/'.$crssec;
4257: }
4258: $rolekey .= './';
4259: $groups_roles{$rolekey} = \@rolecodes;
4260: }
4261: }
4262: }
4263: }
1.1002 raeburn 4264: } else {
1.1064 raeburn 4265: push(@rolecodes,$$role);
1.1002 raeburn 4266: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
4267: }
1.1064 raeburn 4268: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
4269: &appenv(\%userroles,\@rolecodes);
1.1002 raeburn 4270: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4271: }
4272: }
1.1034 raeburn 4273: $$tstatus = 'is';
1.1002 raeburn 4274: }
1.994 raeburn 4275: }
4276: if ($$tend) {
4277: if ($$tend<$then) {
4278: $$tstatus='expired';
4279: } elsif ($$tend<$now) {
4280: $$tstatus='will_not';
4281: }
4282: }
4283: }
4284: }
4285: }
4286:
4287: sub check_adhoc_privs {
1.1002 raeburn 4288: my ($cdom,$cnum,$then,$refresh,$now,$checkrole) = @_;
1.994 raeburn 4289: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
4290: if ($env{$cckey}) {
4291: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1002 raeburn 4292: &role_status($cckey,$then,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 4293: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
4294: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4295: }
4296: } else {
4297: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4298: }
4299: }
4300:
4301: sub set_adhoc_privileges {
4302: # role can be cc or ca
4303: my ($dcdom,$pickedcourse,$role) = @_;
4304: my $area = '/'.$dcdom.'/'.$pickedcourse;
4305: my $spec = $role.'.'.$area;
4306: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
4307: $env{'user.name'});
4308: my %ccrole = ();
4309: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
4310: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
4311: &appenv(\%userroles,[$role,'cm']);
4312: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4313: &appenv( {'request.role' => $spec,
4314: 'request.role.domain' => $dcdom,
4315: 'request.course.sec' => ''
4316: }
4317: );
4318: my $tadv=0;
4319: if (&allowed('adv') eq 'F') { $tadv=1; }
4320: &appenv({'request.role.adv' => $tadv});
4321: }
4322:
1.12 www 4323: # --------------------------------------------------------------- get interface
4324:
4325: sub get {
1.131 albertel 4326: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4327: my $items='';
1.800 albertel 4328: foreach my $item (@$storearr) {
4329: $items.=&escape($item).'&';
1.191 harris41 4330: }
1.12 www 4331: $items=~s/\&$//;
1.620 albertel 4332: if (!$udomain) { $udomain=$env{'user.domain'}; }
4333: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 4334: my $uhome=&homeserver($uname,$udomain);
4335:
1.133 albertel 4336: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4337: my @pairs=split(/\&/,$rep);
1.273 albertel 4338: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
4339: return @pairs;
4340: }
1.15 www 4341: my %returnhash=();
1.42 www 4342: my $i=0;
1.800 albertel 4343: foreach my $item (@$storearr) {
4344: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4345: $i++;
1.191 harris41 4346: }
1.15 www 4347: return %returnhash;
1.27 www 4348: }
4349:
4350: # --------------------------------------------------------------- del interface
4351:
4352: sub del {
1.133 albertel 4353: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 4354: my $items='';
1.800 albertel 4355: foreach my $item (@$storearr) {
4356: $items.=&escape($item).'&';
1.191 harris41 4357: }
1.984 neumanie 4358:
1.27 www 4359: $items=~s/\&$//;
1.620 albertel 4360: if (!$udomain) { $udomain=$env{'user.domain'}; }
4361: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4362: my $uhome=&homeserver($uname,$udomain);
4363: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4364: }
4365:
4366: # -------------------------------------------------------------- dump interface
4367:
4368: sub dump {
1.755 albertel 4369: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
4370: if (!$udomain) { $udomain=$env{'user.domain'}; }
4371: if (!$uname) { $uname=$env{'user.name'}; }
4372: my $uhome=&homeserver($uname,$udomain);
4373: if ($regexp) {
4374: $regexp=&escape($regexp);
4375: } else {
4376: $regexp='.';
4377: }
4378: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4379: my @pairs=split(/\&/,$rep);
4380: my %returnhash=();
4381: foreach my $item (@pairs) {
4382: my ($key,$value)=split(/=/,$item,2);
4383: $key = &unescape($key);
4384: next if ($key =~ /^error: 2 /);
4385: $returnhash{$key}=&thaw_unescape($value);
4386: }
4387: return %returnhash;
1.407 www 4388: }
4389:
1.717 albertel 4390: # --------------------------------------------------------- dumpstore interface
4391:
4392: sub dumpstore {
4393: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 4394: if (!$udomain) { $udomain=$env{'user.domain'}; }
4395: if (!$uname) { $uname=$env{'user.name'}; }
4396: my $uhome=&homeserver($uname,$udomain);
4397: if ($regexp) {
4398: $regexp=&escape($regexp);
4399: } else {
4400: $regexp='.';
4401: }
4402: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4403: my @pairs=split(/\&/,$rep);
4404: my %returnhash=();
4405: foreach my $item (@pairs) {
4406: my ($key,$value)=split(/=/,$item,2);
4407: next if ($key =~ /^error: 2 /);
4408: $returnhash{$key}=&thaw_unescape($value);
4409: }
4410: return %returnhash;
1.717 albertel 4411: }
4412:
1.407 www 4413: # -------------------------------------------------------------- keys interface
4414:
4415: sub getkeys {
4416: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 4417: if (!$udomain) { $udomain=$env{'user.domain'}; }
4418: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 4419: my $uhome=&homeserver($uname,$udomain);
4420: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
4421: my @keyarray=();
1.800 albertel 4422: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 4423: next if ($key =~ /^error: 2 /);
1.800 albertel 4424: push(@keyarray,&unescape($key));
1.407 www 4425: }
4426: return @keyarray;
1.318 matthew 4427: }
4428:
1.319 matthew 4429: # --------------------------------------------------------------- currentdump
4430: sub currentdump {
1.328 matthew 4431: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 4432: $courseid = $env{'request.course.id'} if (! defined($courseid));
4433: $sdom = $env{'user.domain'} if (! defined($sdom));
4434: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 4435: my $uhome = &homeserver($sname,$sdom);
4436: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 4437: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 4438: #
1.318 matthew 4439: my %returnhash=();
1.319 matthew 4440: #
4441: if ($rep eq "unknown_cmd") {
4442: # an old lond will not know currentdump
4443: # Do a dump and make it look like a currentdump
1.822 albertel 4444: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 4445: return if ($tmp[0] =~ /^(error:|no_such_host)/);
4446: my %hash = @tmp;
4447: @tmp=();
1.424 matthew 4448: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 4449: } else {
4450: my @pairs=split(/\&/,$rep);
1.800 albertel 4451: foreach my $pair (@pairs) {
4452: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 4453: my ($symb,$param) = split(/:/,$key);
4454: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 4455: &thaw_unescape($value);
1.319 matthew 4456: }
1.191 harris41 4457: }
1.12 www 4458: return %returnhash;
1.424 matthew 4459: }
4460:
4461: sub convert_dump_to_currentdump{
4462: my %hash = %{shift()};
4463: my %returnhash;
4464: # Code ripped from lond, essentially. The only difference
4465: # here is the unescaping done by lonnet::dump(). Conceivably
4466: # we might run in to problems with parameter names =~ /^v\./
4467: while (my ($key,$value) = each(%hash)) {
4468: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 4469: $symb = &unescape($symb);
4470: $param = &unescape($param);
1.424 matthew 4471: next if ($v eq 'version' || $symb eq 'keys');
4472: next if (exists($returnhash{$symb}) &&
4473: exists($returnhash{$symb}->{$param}) &&
4474: $returnhash{$symb}->{'v.'.$param} > $v);
4475: $returnhash{$symb}->{$param}=$value;
4476: $returnhash{$symb}->{'v.'.$param}=$v;
4477: }
4478: #
4479: # Remove all of the keys in the hashes which keep track of
4480: # the version of the parameter.
4481: while (my ($symb,$param_hash) = each(%returnhash)) {
4482: # use a foreach because we are going to delete from the hash.
4483: foreach my $key (keys(%$param_hash)) {
4484: delete($param_hash->{$key}) if ($key =~ /^v\./);
4485: }
4486: }
4487: return \%returnhash;
1.12 www 4488: }
4489:
1.627 albertel 4490: # ------------------------------------------------------ critical inc interface
4491:
4492: sub cinc {
4493: return &inc(@_,'critical');
4494: }
4495:
1.449 matthew 4496: # --------------------------------------------------------------- inc interface
4497:
4498: sub inc {
1.627 albertel 4499: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 4500: if (!$udomain) { $udomain=$env{'user.domain'}; }
4501: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 4502: my $uhome=&homeserver($uname,$udomain);
4503: my $items='';
4504: if (! ref($store)) {
4505: # got a single value, so use that instead
4506: $items = &escape($store).'=&';
4507: } elsif (ref($store) eq 'SCALAR') {
4508: $items = &escape($$store).'=&';
4509: } elsif (ref($store) eq 'ARRAY') {
4510: $items = join('=&',map {&escape($_);} @{$store});
4511: } elsif (ref($store) eq 'HASH') {
4512: while (my($key,$value) = each(%{$store})) {
4513: $items.= &escape($key).'='.&escape($value).'&';
4514: }
4515: }
4516: $items=~s/\&$//;
1.627 albertel 4517: if ($critical) {
4518: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
4519: } else {
4520: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
4521: }
1.449 matthew 4522: }
4523:
1.12 www 4524: # --------------------------------------------------------------- put interface
4525:
4526: sub put {
1.134 albertel 4527: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4528: if (!$udomain) { $udomain=$env{'user.domain'}; }
4529: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4530: my $uhome=&homeserver($uname,$udomain);
1.12 www 4531: my $items='';
1.800 albertel 4532: foreach my $item (keys(%$storehash)) {
4533: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4534: }
1.12 www 4535: $items=~s/\&$//;
1.134 albertel 4536: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 4537: }
4538:
1.631 albertel 4539: # ------------------------------------------------------------ newput interface
4540:
4541: sub newput {
4542: my ($namespace,$storehash,$udomain,$uname)=@_;
4543: if (!$udomain) { $udomain=$env{'user.domain'}; }
4544: if (!$uname) { $uname=$env{'user.name'}; }
4545: my $uhome=&homeserver($uname,$udomain);
4546: my $items='';
4547: foreach my $key (keys(%$storehash)) {
4548: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
4549: }
4550: $items=~s/\&$//;
4551: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
4552: }
4553:
4554: # --------------------------------------------------------- putstore interface
4555:
1.524 raeburn 4556: sub putstore {
1.715 albertel 4557: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 4558: if (!$udomain) { $udomain=$env{'user.domain'}; }
4559: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 4560: my $uhome=&homeserver($uname,$udomain);
4561: my $items='';
1.715 albertel 4562: foreach my $key (keys(%$storehash)) {
4563: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 4564: }
1.715 albertel 4565: $items=~s/\&$//;
1.716 albertel 4566: my $esc_symb=&escape($symb);
4567: my $esc_v=&escape($version);
1.715 albertel 4568: my $reply =
1.716 albertel 4569: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 4570: $uhome);
4571: if ($reply eq 'unknown_cmd') {
1.716 albertel 4572: # gfall back to way things use to be done
1.715 albertel 4573: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
4574: $uname);
1.524 raeburn 4575: }
1.715 albertel 4576: return $reply;
4577: }
4578:
4579: sub old_putstore {
1.716 albertel 4580: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
4581: if (!$udomain) { $udomain=$env{'user.domain'}; }
4582: if (!$uname) { $uname=$env{'user.name'}; }
4583: my $uhome=&homeserver($uname,$udomain);
4584: my %newstorehash;
1.800 albertel 4585: foreach my $item (keys(%$storehash)) {
4586: my $key = $version.':'.&escape($symb).':'.$item;
4587: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 4588: }
4589: my $items='';
4590: my %allitems = ();
1.800 albertel 4591: foreach my $item (keys(%newstorehash)) {
4592: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4593: my $key = $1.':keys:'.$2;
4594: $allitems{$key} .= $3.':';
4595: }
1.800 albertel 4596: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4597: }
1.800 albertel 4598: foreach my $item (keys(%allitems)) {
4599: $allitems{$item} =~ s/\:$//;
4600: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4601: }
4602: $items=~s/\&$//;
4603: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4604: }
4605:
1.47 www 4606: # ------------------------------------------------------ critical put interface
4607:
4608: sub cput {
1.134 albertel 4609: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4610: if (!$udomain) { $udomain=$env{'user.domain'}; }
4611: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4612: my $uhome=&homeserver($uname,$udomain);
1.47 www 4613: my $items='';
1.800 albertel 4614: foreach my $item (keys(%$storehash)) {
4615: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4616: }
1.47 www 4617: $items=~s/\&$//;
1.134 albertel 4618: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4619: }
4620:
4621: # -------------------------------------------------------------- eget interface
4622:
4623: sub eget {
1.133 albertel 4624: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4625: my $items='';
1.800 albertel 4626: foreach my $item (@$storearr) {
4627: $items.=&escape($item).'&';
1.191 harris41 4628: }
1.12 www 4629: $items=~s/\&$//;
1.620 albertel 4630: if (!$udomain) { $udomain=$env{'user.domain'}; }
4631: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4632: my $uhome=&homeserver($uname,$udomain);
4633: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4634: my @pairs=split(/\&/,$rep);
4635: my %returnhash=();
1.42 www 4636: my $i=0;
1.800 albertel 4637: foreach my $item (@$storearr) {
4638: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4639: $i++;
1.191 harris41 4640: }
1.12 www 4641: return %returnhash;
4642: }
4643:
1.667 albertel 4644: # ------------------------------------------------------------ tmpput interface
4645: sub tmpput {
1.802 raeburn 4646: my ($storehash,$server,$context)=@_;
1.667 albertel 4647: my $items='';
1.800 albertel 4648: foreach my $item (keys(%$storehash)) {
4649: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4650: }
4651: $items=~s/\&$//;
1.802 raeburn 4652: if (defined($context)) {
4653: $items .= ':'.&escape($context);
4654: }
1.667 albertel 4655: return &reply("tmpput:$items",$server);
4656: }
4657:
4658: # ------------------------------------------------------------ tmpget interface
4659: sub tmpget {
1.688 albertel 4660: my ($token,$server)=@_;
4661: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4662: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4663: my %returnhash;
4664: foreach my $item (split(/\&/,$rep)) {
4665: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4666: next if ($key =~ /^error: 2 /);
1.667 albertel 4667: $returnhash{&unescape($key)}=&thaw_unescape($value);
4668: }
4669: return %returnhash;
4670: }
4671:
1.688 albertel 4672: # ------------------------------------------------------------ tmpget interface
4673: sub tmpdel {
4674: my ($token,$server)=@_;
4675: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4676: return &reply("tmpdel:$token",$server);
4677: }
4678:
1.765 albertel 4679: # -------------------------------------------------- portfolio access checking
4680:
4681: sub portfolio_access {
1.766 albertel 4682: my ($requrl) = @_;
1.765 albertel 4683: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4684: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4685: if ($result) {
4686: my %setters;
4687: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4688: my ($startblock,$endblock) =
4689: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4690: if ($startblock && $endblock) {
4691: return 'B';
4692: }
4693: } else {
4694: my ($startblock,$endblock) =
4695: &Apache::loncommon::blockcheck(\%setters,'port');
4696: if ($startblock && $endblock) {
4697: return 'B';
4698: }
4699: }
4700: }
1.765 albertel 4701: if ($result eq 'ok') {
1.766 albertel 4702: return 'F';
1.765 albertel 4703: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4704: return 'A';
1.765 albertel 4705: }
1.766 albertel 4706: return '';
1.765 albertel 4707: }
4708:
4709: sub get_portfolio_access {
1.767 albertel 4710: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4711:
4712: if (!ref($access_hash)) {
4713: my $current_perms = &get_portfile_permissions($udom,$unum);
4714: my %access_controls = &get_access_controls($current_perms,$group,
4715: $file_name);
4716: $access_hash = $access_controls{$file_name};
4717: }
4718:
1.765 albertel 4719: my ($public,$guest,@domains,@users,@courses,@groups);
4720: my $now = time;
4721: if (ref($access_hash) eq 'HASH') {
4722: foreach my $key (keys(%{$access_hash})) {
4723: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4724: if ($start > $now) {
4725: next;
4726: }
4727: if ($end && $end<$now) {
4728: next;
4729: }
4730: if ($scope eq 'public') {
4731: $public = $key;
4732: last;
4733: } elsif ($scope eq 'guest') {
4734: $guest = $key;
4735: } elsif ($scope eq 'domains') {
4736: push(@domains,$key);
4737: } elsif ($scope eq 'users') {
4738: push(@users,$key);
4739: } elsif ($scope eq 'course') {
4740: push(@courses,$key);
4741: } elsif ($scope eq 'group') {
4742: push(@groups,$key);
4743: }
4744: }
4745: if ($public) {
4746: return 'ok';
4747: }
4748: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4749: if ($guest) {
4750: return $guest;
4751: }
4752: } else {
4753: if (@domains > 0) {
4754: foreach my $domkey (@domains) {
4755: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4756: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4757: return 'ok';
4758: }
4759: }
4760: }
4761: }
4762: if (@users > 0) {
4763: foreach my $userkey (@users) {
1.865 raeburn 4764: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4765: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4766: if (ref($item) eq 'HASH') {
4767: if (($item->{'uname'} eq $env{'user.name'}) &&
4768: ($item->{'udom'} eq $env{'user.domain'})) {
4769: return 'ok';
4770: }
4771: }
4772: }
4773: }
1.765 albertel 4774: }
4775: }
4776: my %roleshash;
4777: my @courses_and_groups = @courses;
4778: push(@courses_and_groups,@groups);
4779: if (@courses_and_groups > 0) {
4780: my (%allgroups,%allroles);
4781: my ($start,$end,$role,$sec,$group);
4782: foreach my $envkey (%env) {
1.1060 raeburn 4783: if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4784: my $cid = $2.'_'.$3;
4785: if ($1 eq 'gr') {
4786: $group = $4;
4787: $allgroups{$cid}{$group} = $env{$envkey};
4788: } else {
4789: if ($4 eq '') {
4790: $sec = 'none';
4791: } else {
4792: $sec = $4;
4793: }
4794: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4795: }
1.811 albertel 4796: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4797: my $cid = $2.'_'.$3;
4798: if ($4 eq '') {
4799: $sec = 'none';
4800: } else {
4801: $sec = $4;
4802: }
4803: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4804: }
4805: }
4806: if (keys(%allroles) == 0) {
4807: return;
4808: }
4809: foreach my $key (@courses_and_groups) {
4810: my %content = %{$$access_hash{$key}};
4811: my $cnum = $content{'number'};
4812: my $cdom = $content{'domain'};
4813: my $cid = $cdom.'_'.$cnum;
4814: if (!exists($allroles{$cid})) {
4815: next;
4816: }
4817: foreach my $role_id (keys(%{$content{'roles'}})) {
4818: my @sections = @{$content{'roles'}{$role_id}{'section'}};
4819: my @groups = @{$content{'roles'}{$role_id}{'group'}};
4820: my @status = @{$content{'roles'}{$role_id}{'access'}};
4821: my @roles = @{$content{'roles'}{$role_id}{'role'}};
4822: foreach my $role (keys(%{$allroles{$cid}})) {
4823: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
4824: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
4825: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
4826: if (grep/^all$/,@sections) {
4827: return 'ok';
4828: } else {
4829: if (grep/^$sec$/,@sections) {
4830: return 'ok';
4831: }
4832: }
4833: }
4834: }
4835: if (keys(%{$allgroups{$cid}}) == 0) {
4836: if (grep/^none$/,@groups) {
4837: return 'ok';
4838: }
4839: } else {
4840: if (grep/^all$/,@groups) {
4841: return 'ok';
4842: }
4843: foreach my $group (keys(%{$allgroups{$cid}})) {
4844: if (grep/^$group$/,@groups) {
4845: return 'ok';
4846: }
4847: }
4848: }
4849: }
4850: }
4851: }
4852: }
4853: }
4854: if ($guest) {
4855: return $guest;
4856: }
4857: }
4858: }
4859: return;
4860: }
4861:
4862: sub course_group_datechecker {
4863: my ($dates,$now,$status) = @_;
4864: my ($start,$end) = split(/\./,$dates);
4865: if (!$start && !$end) {
4866: return 'ok';
4867: }
4868: if (grep/^active$/,@{$status}) {
4869: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
4870: return 'ok';
4871: }
4872: }
4873: if (grep/^previous$/,@{$status}) {
4874: if ($end > $now ) {
4875: return 'ok';
4876: }
4877: }
4878: if (grep/^future$/,@{$status}) {
4879: if ($start > $now) {
4880: return 'ok';
4881: }
4882: }
4883: return;
4884: }
4885:
4886: sub parse_portfolio_url {
4887: my ($url) = @_;
4888:
4889: my ($type,$udom,$unum,$group,$file_name);
4890:
1.823 albertel 4891: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 4892: $type = 1;
4893: $udom = $1;
4894: $unum = $2;
4895: $file_name = $3;
1.823 albertel 4896: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 4897: $type = 2;
4898: $udom = $1;
4899: $unum = $2;
4900: $group = $3;
4901: $file_name = $3.'/'.$4;
4902: }
4903: if (wantarray) {
4904: return ($type,$udom,$unum,$file_name,$group);
4905: }
4906: return $type;
4907: }
4908:
4909: sub is_portfolio_url {
4910: my ($url) = @_;
4911: return scalar(&parse_portfolio_url($url));
4912: }
4913:
1.798 raeburn 4914: sub is_portfolio_file {
4915: my ($file) = @_;
1.820 raeburn 4916: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 4917: return 1;
4918: }
4919: return;
4920: }
4921:
1.976 raeburn 4922: sub usertools_access {
1.1084 raeburn 4923: my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref)=@_;
1.985 raeburn 4924: my ($access,%tools);
4925: if ($context eq '') {
4926: $context = 'tools';
4927: }
4928: if ($context eq 'requestcourses') {
4929: %tools = (
4930: official => 1,
4931: unofficial => 1,
1.1006 raeburn 4932: community => 1,
1.985 raeburn 4933: );
4934: } else {
4935: %tools = (
4936: aboutme => 1,
4937: blog => 1,
4938: portfolio => 1,
4939: );
4940: }
1.976 raeburn 4941: return if (!defined($tools{$tool}));
4942:
4943: if ((!defined($udom)) || (!defined($uname))) {
4944: $udom = $env{'user.domain'};
4945: $uname = $env{'user.name'};
4946: }
4947:
1.978 raeburn 4948: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
4949: if ($action ne 'reload') {
1.985 raeburn 4950: if ($context eq 'requestcourses') {
4951: return $env{'environment.canrequest.'.$tool};
4952: } else {
4953: return $env{'environment.availabletools.'.$tool};
4954: }
4955: }
1.976 raeburn 4956: }
4957:
4958: my ($toolstatus,$inststatus);
4959:
1.985 raeburn 4960: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
4961: ($action ne 'reload')) {
4962: $toolstatus = $env{'environment.'.$context.'.'.$tool};
1.976 raeburn 4963: $inststatus = $env{'environment.inststatus'};
4964: } else {
1.1084 raeburn 4965: if (ref($userenvref) eq 'HASH') {
4966: $toolstatus = $userenvref->{$context.'.'.$tool};
4967: $inststatus = $userenvref->{'inststatus'};
4968: } else {
4969: my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool,'inststatus');
4970: $toolstatus = $userenv{$context.'.'.$tool};
4971: $inststatus = $userenv{'inststatus'};
4972: }
1.976 raeburn 4973: }
4974:
4975: if ($toolstatus ne '') {
4976: if ($toolstatus) {
4977: $access = 1;
4978: } else {
4979: $access = 0;
4980: }
4981: return $access;
4982: }
4983:
1.1084 raeburn 4984: my ($is_adv,%domdef);
4985: if (ref($is_advref) eq 'HASH') {
4986: $is_adv = $is_advref->{'is_adv'};
4987: } else {
4988: $is_adv = &is_advanced_user($udom,$uname);
4989: }
4990: if (ref($domdefref) eq 'HASH') {
4991: %domdef = %{$domdefref};
4992: } else {
4993: %domdef = &get_domain_defaults($udom);
4994: }
1.976 raeburn 4995: if (ref($domdef{$tool}) eq 'HASH') {
4996: if ($is_adv) {
4997: if ($domdef{$tool}{'_LC_adv'} ne '') {
4998: if ($domdef{$tool}{'_LC_adv'}) {
4999: $access = 1;
5000: } else {
5001: $access = 0;
5002: }
5003: return $access;
5004: }
5005: }
5006: if ($inststatus ne '') {
5007: my ($hasaccess,$hasnoaccess);
5008: foreach my $affiliation (split(/:/,$inststatus)) {
5009: if ($domdef{$tool}{$affiliation} ne '') {
5010: if ($domdef{$tool}{$affiliation}) {
5011: $hasaccess = 1;
5012: } else {
5013: $hasnoaccess = 1;
5014: }
5015: }
5016: }
5017: if ($hasaccess || $hasnoaccess) {
5018: if ($hasaccess) {
5019: $access = 1;
5020: } elsif ($hasnoaccess) {
5021: $access = 0;
5022: }
5023: return $access;
5024: }
5025: } else {
5026: if ($domdef{$tool}{'default'} ne '') {
5027: if ($domdef{$tool}{'default'}) {
5028: $access = 1;
5029: } elsif ($domdef{$tool}{'default'} == 0) {
5030: $access = 0;
5031: }
5032: return $access;
5033: }
5034: }
5035: } else {
1.985 raeburn 5036: if ($context eq 'tools') {
5037: $access = 1;
5038: } else {
5039: $access = 0;
5040: }
1.976 raeburn 5041: return $access;
5042: }
5043: }
5044:
1.1050 raeburn 5045: sub is_course_owner {
5046: my ($cdom,$cnum,$udom,$uname) = @_;
5047: if (($udom eq '') || ($uname eq '')) {
5048: $udom = $env{'user.domain'};
5049: $uname = $env{'user.name'};
5050: }
5051: unless (($udom eq '') || ($uname eq '')) {
5052: if (exists($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'})) {
5053: if ($env{'course.'.$cdom.'_'.$cnum.'.internal.courseowner'} eq $uname.':'.$udom) {
5054: return 1;
5055: } else {
5056: my %courseinfo = &Apache::lonnet::coursedescription($cdom.'/'.$cnum);
5057: if ($courseinfo{'internal.courseowner'} eq $uname.':'.$udom) {
5058: return 1;
5059: }
5060: }
5061: }
5062: }
5063: return;
5064: }
5065:
1.976 raeburn 5066: sub is_advanced_user {
5067: my ($udom,$uname) = @_;
1.1085 ! raeburn 5068: if ($udom ne '' && $uname ne '') {
! 5069: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
! 5070: return $env{'user.adv'};
! 5071: }
! 5072: }
1.976 raeburn 5073: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
5074: my %allroles;
5075: my $is_adv;
5076: foreach my $role (keys(%roleshash)) {
5077: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
5078: my $area = '/'.$tdomain.'/'.$trest;
5079: if ($sec ne '') {
5080: $area .= '/'.$sec;
5081: }
5082: if (($area ne '') && ($trole ne '')) {
5083: my $spec=$trole.'.'.$area;
5084: if ($trole =~ /^cr\//) {
5085: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
5086: } elsif ($trole ne 'gr') {
5087: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
5088: }
5089: }
5090: }
5091: foreach my $role (keys(%allroles)) {
5092: last if ($is_adv);
5093: foreach my $item (split(/:/,$allroles{$role})) {
5094: if ($item ne '') {
5095: my ($privilege,$restrictions)=split(/&/,$item);
5096: if ($privilege eq 'adv') {
5097: $is_adv = 1;
5098: last;
5099: }
5100: }
5101: }
5102: }
5103: return $is_adv;
5104: }
1.798 raeburn 5105:
1.1035 raeburn 5106: sub check_can_request {
1.1036 raeburn 5107: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 5108: my $canreq = 0;
5109: my ($types,$typename) = &Apache::loncommon::course_types();
5110: my @options = ('approval','validate','autolimit');
5111: my $optregex = join('|',@options);
5112: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
5113: foreach my $type (@{$types}) {
5114: if (&usertools_access($env{'user.name'},
5115: $env{'user.domain'},
5116: $type,undef,'requestcourses')) {
5117: $canreq ++;
1.1036 raeburn 5118: if (ref($request_domains) eq 'HASH') {
5119: push(@{$request_domains->{$type}},$env{'user.domain'});
5120: }
1.1035 raeburn 5121: if ($dom eq $env{'user.domain'}) {
5122: $can_request->{$type} = 1;
5123: }
5124: }
5125: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
5126: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
5127: if (@curr > 0) {
1.1036 raeburn 5128: foreach my $item (@curr) {
5129: if (ref($request_domains) eq 'HASH') {
5130: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
5131: if ($otherdom ne '') {
5132: if (ref($request_domains->{$type}) eq 'ARRAY') {
5133: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
5134: push(@{$request_domains->{$type}},$otherdom);
5135: }
5136: } else {
5137: push(@{$request_domains->{$type}},$otherdom);
5138: }
5139: }
5140: }
5141: }
5142: unless($dom eq $env{'user.domain'}) {
5143: $canreq ++;
1.1035 raeburn 5144: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
5145: $can_request->{$type} = 1;
5146: }
5147: }
5148: }
5149: }
5150: }
5151: }
5152: return $canreq;
5153: }
5154:
1.341 www 5155: # ---------------------------------------------- Custom access rule evaluation
5156:
5157: sub customaccess {
5158: my ($priv,$uri)=@_;
1.807 albertel 5159: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 5160: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 5161: $udom = &LONCAPA::clean_domain($udom);
5162: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 5163: my $access=0;
1.800 albertel 5164: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 5165: my ($effect,$realm,$role,$type)=split(/\:/,$right);
5166: if ($type eq 'user') {
5167: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 5168: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 5169: if ($tdom) {
5170: if ($tdom ne $env{'user.domain'}) { next; }
5171: }
1.896 albertel 5172: if ($tuname) {
5173: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 5174: }
5175: $access=($effect eq 'allow');
5176: last;
5177: }
5178: } else {
5179: if ($role) {
5180: if ($role ne $urole) { next; }
5181: }
5182: foreach my $scope (split(/\s*\,\s*/,$realm)) {
5183: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
5184: if ($tdom) {
5185: if ($tdom ne $udom) { next; }
5186: }
5187: if ($tcrs) {
5188: if ($tcrs ne $ucrs) { next; }
5189: }
5190: if ($tsec) {
5191: if ($tsec ne $usec) { next; }
5192: }
5193: $access=($effect eq 'allow');
5194: last;
5195: }
5196: if ($realm eq '' && $role eq '') {
5197: $access=($effect eq 'allow');
5198: }
1.402 bowersj2 5199: }
1.341 www 5200: }
5201: return $access;
5202: }
5203:
1.103 harris41 5204: # ------------------------------------------------- Check for a user privilege
1.12 www 5205:
5206: sub allowed {
1.810 raeburn 5207: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 5208: my $ver_orguri=$uri;
1.439 www 5209: $uri=&deversion($uri);
1.152 www 5210: my $orguri=$uri;
1.52 www 5211: $uri=&declutter($uri);
1.809 raeburn 5212:
1.810 raeburn 5213: if ($priv eq 'evb') {
5214: # Evade communication block restrictions for specified role in a course
5215: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
5216: return $1;
5217: } else {
5218: return;
5219: }
5220: }
5221:
1.620 albertel 5222: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 5223: # Free bre access to adm and meta resources
1.775 albertel 5224: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 5225: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
5226: && ($priv eq 'bre')) {
1.14 www 5227: return 'F';
1.159 www 5228: }
5229:
1.545 banghart 5230: # Free bre access to user's own portfolio contents
1.714 raeburn 5231: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 5232: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 5233: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 5234: my %setters;
5235: my ($startblock,$endblock) =
5236: &Apache::loncommon::blockcheck(\%setters,'port');
5237: if ($startblock && $endblock) {
5238: return 'B';
5239: } else {
5240: return 'F';
5241: }
1.545 banghart 5242: }
5243:
1.762 raeburn 5244: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 5245: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
5246: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
5247: if (exists($env{'request.course.id'})) {
5248: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
5249: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
5250: if (($domain eq $cdom) && ($name eq $cnum)) {
5251: my $courseprivid=$env{'request.course.id'};
5252: $courseprivid=~s/\_/\//;
5253: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
5254: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
5255: return $1;
1.762 raeburn 5256: } else {
5257: if ($env{'request.course.sec'}) {
5258: $courseprivid.='/'.$env{'request.course.sec'};
5259: }
5260: if ($env{'user.priv.'.$env{'request.role'}.'./'.
5261: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
5262: return $2;
5263: }
1.714 raeburn 5264: }
5265: }
5266: }
5267: }
5268:
1.159 www 5269: # Free bre to public access
5270:
5271: if ($priv eq 'bre') {
1.238 www 5272: my $copyright=&metadata($uri,'copyright');
1.620 albertel 5273: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 5274: return 'F';
5275: }
1.238 www 5276: if ($copyright eq 'priv') {
5277: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5278: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 5279: return '';
5280: }
5281: }
5282: if ($copyright eq 'domain') {
5283: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5284: unless (($env{'user.domain'} eq $1) ||
5285: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 5286: return '';
5287: }
1.262 matthew 5288: }
1.620 albertel 5289: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 5290: # Library role, so allow browsing of resources in this domain.
5291: return 'F';
1.238 www 5292: }
1.341 www 5293: if ($copyright eq 'custom') {
5294: unless (&customaccess($priv,$uri)) { return ''; }
5295: }
1.14 www 5296: }
1.264 matthew 5297: # Domain coordinator is trying to create a course
1.620 albertel 5298: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 5299: # uri is the requested domain in this case.
5300: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 5301: # a role of dc for the domain in question.
1.620 albertel 5302: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 5303: }
1.29 www 5304:
1.52 www 5305: my $thisallowed='';
5306: my $statecond=0;
5307: my $courseprivid='';
5308:
1.1039 raeburn 5309: my $ownaccess;
1.1043 raeburn 5310: # Community Coordinator or Assistant Co-author browsing resource space.
1.1039 raeburn 5311: if (($priv eq 'bro') && ($env{'user.author'})) {
5312: if ($uri eq '') {
5313: $ownaccess = 1;
5314: } else {
5315: if (($env{'user.domain'} ne '') && ($env{'user.name'} ne '')) {
5316: my $udom = $env{'user.domain'};
5317: my $uname = $env{'user.name'};
5318: if ($uri =~ m{^\Q$udom\E/?$}) {
5319: $ownaccess = 1;
1.1040 raeburn 5320: } elsif ($uri =~ m{^\Q$udom\E/\Q$uname\E/?}) {
1.1039 raeburn 5321: unless ($uri =~ m{\.\./}) {
5322: $ownaccess = 1;
5323: }
5324: } elsif (($udom ne 'public') && ($uname ne 'public')) {
5325: my $now = time;
5326: if ($uri =~ m{^([^/]+)/?$}) {
5327: my $adom = $1;
5328: foreach my $key (keys(%env)) {
1.1042 raeburn 5329: if ($key =~ m{^user\.role\.(ca|aa)/\Q$adom\E}) {
1.1039 raeburn 5330: my ($start,$end) = split('.',$env{$key});
5331: if (($now >= $start) && (!$end || $end < $now)) {
5332: $ownaccess = 1;
5333: last;
5334: }
5335: }
5336: }
5337: } elsif ($uri =~ m{^([^/]+)/([^/]+)/?}) {
5338: my $adom = $1;
5339: my $aname = $2;
1.1042 raeburn 5340: foreach my $role ('ca','aa') {
5341: if ($env{"user.role.$role./$adom/$aname"}) {
5342: my ($start,$end) =
5343: split('.',$env{"user.role.$role./$adom/$aname"});
5344: if (($now >= $start) && (!$end || $end < $now)) {
5345: $ownaccess = 1;
5346: last;
5347: }
1.1039 raeburn 5348: }
5349: }
5350: }
5351: }
5352: }
5353: }
5354: }
5355:
1.52 www 5356: # Course
5357:
1.620 albertel 5358: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5359: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5360: $thisallowed.=$1;
5361: }
1.52 www 5362: }
1.29 www 5363:
1.52 www 5364: # Domain
5365:
1.620 albertel 5366: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 5367: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5368: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5369: $thisallowed.=$1;
5370: }
1.12 www 5371: }
1.52 www 5372:
5373: # Course: uri itself is a course
1.66 www 5374: my $courseuri=$uri;
5375: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 5376: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 5377:
1.620 albertel 5378: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 5379: =~/\Q$priv\E\&([^\:]*)/) {
1.1043 raeburn 5380: unless (($priv eq 'bro') && (!$ownaccess)) {
1.1039 raeburn 5381: $thisallowed.=$1;
5382: }
1.12 www 5383: }
1.29 www 5384:
1.665 albertel 5385: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 5386: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 5387: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 5388: $thisallowed='';
1.671 raeburn 5389: my ($match)=&is_on_map($uri);
5390: if ($match) {
5391: if ($env{'user.priv.'.$env{'request.role'}.'./'}
5392: =~/\Q$priv\E\&([^\:]*)/) {
5393: $thisallowed.=$1;
5394: }
5395: } else {
1.705 albertel 5396: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 5397: if ($refuri) {
5398: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 5399: $thisallowed='F';
1.671 raeburn 5400: } else {
5401: $refuri=&declutter($refuri);
5402: my ($match) = &is_on_map($refuri);
5403: if ($match) {
5404: $thisallowed='F';
5405: }
1.669 raeburn 5406: }
1.671 raeburn 5407: }
5408: }
1.314 www 5409: }
1.492 albertel 5410:
1.766 albertel 5411: if ($priv eq 'bre'
5412: && $thisallowed ne 'F'
5413: && $thisallowed ne '2'
5414: && &is_portfolio_url($uri)) {
5415: $thisallowed = &portfolio_access($uri);
5416: }
5417:
1.52 www 5418: # Full access at system, domain or course-wide level? Exit.
1.29 www 5419: if ($thisallowed=~/F/) {
5420: return 'F';
5421: }
5422:
1.52 www 5423: # If this is generating or modifying users, exit with special codes
1.29 www 5424:
1.643 www 5425: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
5426: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 5427: my ($audom,$auname)=split('/',$uri);
1.643 www 5428: # no author name given, so this just checks on the general right to make a co-author in this domain
5429: unless ($auname) { return $thisallowed; }
5430: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 5431: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
5432: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
5433: ($audom ne $env{'request.role.domain'}))) { return ''; }
5434: }
1.52 www 5435: return $thisallowed;
5436: }
5437: #
1.103 harris41 5438: # Gathered so far: system, domain and course wide privileges
1.52 www 5439: #
5440: # Course: See if uri or referer is an individual resource that is part of
5441: # the course
5442:
1.620 albertel 5443: if ($env{'request.course.id'}) {
1.232 www 5444:
1.620 albertel 5445: $courseprivid=$env{'request.course.id'};
5446: if ($env{'request.course.sec'}) {
5447: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 5448: }
5449: $courseprivid=~s/\_/\//;
5450: my $checkreferer=1;
1.232 www 5451: my ($match,$cond)=&is_on_map($uri);
5452: if ($match) {
5453: $statecond=$cond;
1.620 albertel 5454: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5455: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5456: $thisallowed.=$1;
5457: $checkreferer=0;
5458: }
1.29 www 5459: }
1.83 www 5460:
1.148 www 5461: if ($checkreferer) {
1.620 albertel 5462: my $refuri=$env{'httpref.'.$orguri};
1.148 www 5463: unless ($refuri) {
1.800 albertel 5464: foreach my $key (keys(%env)) {
5465: if ($key=~/^httpref\..*\*/) {
5466: my $pattern=$key;
1.156 www 5467: $pattern=~s/^httpref\.\/res\///;
1.148 www 5468: $pattern=~s/\*/\[\^\/\]\+/g;
5469: $pattern=~s/\//\\\//g;
1.152 www 5470: if ($orguri=~/$pattern/) {
1.800 albertel 5471: $refuri=$env{$key};
1.148 www 5472: }
5473: }
1.191 harris41 5474: }
1.148 www 5475: }
1.232 www 5476:
1.148 www 5477: if ($refuri) {
1.152 www 5478: $refuri=&declutter($refuri);
1.232 www 5479: my ($match,$cond)=&is_on_map($refuri);
5480: if ($match) {
5481: my $refstatecond=$cond;
1.620 albertel 5482: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5483: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5484: $thisallowed.=$1;
1.53 www 5485: $uri=$refuri;
5486: $statecond=$refstatecond;
1.52 www 5487: }
5488: }
1.148 www 5489: }
1.29 www 5490: }
1.52 www 5491: }
1.29 www 5492:
1.52 www 5493: #
1.103 harris41 5494: # Gathered now: all privileges that could apply, and condition number
1.52 www 5495: #
5496: #
5497: # Full or no access?
5498: #
1.29 www 5499:
1.52 www 5500: if ($thisallowed=~/F/) {
5501: return 'F';
5502: }
1.29 www 5503:
1.52 www 5504: unless ($thisallowed) {
5505: return '';
5506: }
1.29 www 5507:
1.52 www 5508: # Restrictions exist, deal with them
5509: #
5510: # C:according to course preferences
5511: # R:according to resource settings
5512: # L:unless locked
5513: # X:according to user session state
5514: #
5515:
5516: # Possibly locked functionality, check all courses
1.54 www 5517: # Locks might take effect only after 10 minutes cache expiration for other
5518: # courses, and 2 minutes for current course
1.52 www 5519:
5520: my $envkey;
5521: if ($thisallowed=~/L/) {
1.1000 raeburn 5522: foreach $envkey (keys(%env)) {
1.54 www 5523: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
5524: my $courseid=$2;
5525: my $roleid=$1.'.'.$2;
1.92 www 5526: $courseid=~s/^\///;
1.54 www 5527: my $expiretime=600;
1.620 albertel 5528: if ($env{'request.role'} eq $roleid) {
1.54 www 5529: $expiretime=120;
5530: }
5531: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
5532: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 5533: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 5534: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 5535: }
1.620 albertel 5536: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
5537: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
5538: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
5539: &log($env{'user.domain'},$env{'user.name'},
5540: $env{'user.home'},
1.57 www 5541: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 5542: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5543: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5544: return '';
5545: }
5546: }
1.620 albertel 5547: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
5548: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
5549: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
5550: &log($env{'user.domain'},$env{'user.name'},
5551: $env{'user.home'},
1.57 www 5552: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 5553: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5554: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5555: return '';
5556: }
5557: }
5558: }
1.29 www 5559: }
1.52 www 5560: }
5561:
5562: #
5563: # Rest of the restrictions depend on selected course
5564: #
5565:
1.620 albertel 5566: unless ($env{'request.course.id'}) {
1.766 albertel 5567: if ($thisallowed eq 'A') {
5568: return 'A';
1.814 raeburn 5569: } elsif ($thisallowed eq 'B') {
5570: return 'B';
1.766 albertel 5571: } else {
5572: return '1';
5573: }
1.52 www 5574: }
1.29 www 5575:
1.52 www 5576: #
5577: # Now user is definitely in a course
5578: #
1.53 www 5579:
5580:
5581: # Course preferences
5582:
5583: if ($thisallowed=~/C/) {
1.620 albertel 5584: my $rolecode=(split(/\./,$env{'request.role'}))[0];
5585: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
5586: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 5587: =~/\Q$rolecode\E/) {
1.689 albertel 5588: if ($priv ne 'pch') {
5589: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5590: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
5591: $env{'request.course.id'});
5592: }
1.237 www 5593: return '';
5594: }
5595:
1.620 albertel 5596: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 5597: =~/\Q$unamedom\E/) {
1.689 albertel 5598: if ($priv ne 'pch') {
5599: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
5600: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
5601: $env{'request.course.id'});
5602: }
1.54 www 5603: return '';
5604: }
1.53 www 5605: }
5606:
5607: # Resource preferences
5608:
5609: if ($thisallowed=~/R/) {
1.620 albertel 5610: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 5611: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 5612: if ($priv ne 'pch') {
5613: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5614: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
5615: }
5616: return '';
1.54 www 5617: }
1.53 www 5618: }
1.30 www 5619:
1.246 www 5620: # Restricted by state or randomout?
1.30 www 5621:
1.52 www 5622: if ($thisallowed=~/X/) {
1.620 albertel 5623: if ($env{'acc.randomout'}) {
1.579 albertel 5624: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 5625: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 5626: return '';
5627: }
1.247 www 5628: }
5629: if (&condval($statecond)) {
1.52 www 5630: return '2';
5631: } else {
5632: return '';
5633: }
5634: }
1.30 www 5635:
1.766 albertel 5636: if ($thisallowed eq 'A') {
5637: return 'A';
1.814 raeburn 5638: } elsif ($thisallowed eq 'B') {
5639: return 'B';
1.766 albertel 5640: }
1.52 www 5641: return 'F';
1.232 www 5642: }
5643:
1.710 albertel 5644: sub split_uri_for_cond {
5645: my $uri=&deversion(&declutter(shift));
5646: my @uriparts=split(/\//,$uri);
5647: my $filename=pop(@uriparts);
5648: my $pathname=join('/',@uriparts);
5649: return ($pathname,$filename);
5650: }
1.232 www 5651: # --------------------------------------------------- Is a resource on the map?
5652:
5653: sub is_on_map {
1.710 albertel 5654: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 5655: #Trying to find the conditional for the file
1.620 albertel 5656: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 5657: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 5658: if ($match) {
1.289 bowersj2 5659: return (1,$1);
5660: } else {
1.434 www 5661: return (0,0);
1.289 bowersj2 5662: }
1.12 www 5663: }
5664:
1.427 www 5665: # --------------------------------------------------------- Get symb from alias
5666:
5667: sub get_symb_from_alias {
5668: my $symb=shift;
5669: my ($map,$resid,$url)=&decode_symb($symb);
5670: # Already is a symb
5671: if ($url) { return $symb; }
5672: # Must be an alias
5673: my $aliassymb='';
5674: my %bighash;
1.620 albertel 5675: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 5676: &GDBM_READER(),0640)) {
5677: my $rid=$bighash{'mapalias_'.$symb};
5678: if ($rid) {
5679: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 5680: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
5681: $resid,$bighash{'src_'.$rid});
1.427 www 5682: }
5683: untie %bighash;
5684: }
5685: return $aliassymb;
5686: }
5687:
1.12 www 5688: # ----------------------------------------------------------------- Define Role
5689:
5690: sub definerole {
5691: if (allowed('mcr','/')) {
5692: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 5693: foreach my $role (split(':',$sysrole)) {
5694: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5695: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
5696: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
5697: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5698: return "refused:s:$crole&$cqual";
5699: }
5700: }
1.191 harris41 5701: }
1.800 albertel 5702: foreach my $role (split(':',$domrole)) {
5703: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5704: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
5705: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
5706: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 5707: return "refused:d:$crole&$cqual";
5708: }
5709: }
1.191 harris41 5710: }
1.800 albertel 5711: foreach my $role (split(':',$courole)) {
5712: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5713: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
5714: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
5715: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5716: return "refused:c:$crole&$cqual";
5717: }
5718: }
1.191 harris41 5719: }
1.620 albertel 5720: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
5721: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5722: "rolesdef_$rolename=".
5723: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 5724: return reply($command,$env{'user.home'});
1.12 www 5725: } else {
5726: return 'refused';
5727: }
1.105 harris41 5728: }
5729:
5730: # ---------------- Make a metadata query against the network of library servers
5731:
5732: sub metadata_query {
1.244 matthew 5733: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 5734: my %rhash;
1.845 albertel 5735: my %libserv = &all_library();
1.244 matthew 5736: my @server_list = (defined($server_array) ? @$server_array
5737: : keys(%libserv) );
5738: for my $server (@server_list) {
1.118 harris41 5739: unless ($custom or $customshow) {
5740: my $reply=&reply("querysend:".&escape($query),$server);
5741: $rhash{$server}=$reply;
5742: }
5743: else {
5744: my $reply=&reply("querysend:".&escape($query).':'.
5745: &escape($custom).':'.&escape($customshow),
5746: $server);
5747: $rhash{$server}=$reply;
5748: }
1.112 harris41 5749: }
1.118 harris41 5750: return \%rhash;
1.240 www 5751: }
5752:
5753: # ----------------------------------------- Send log queries and wait for reply
5754:
5755: sub log_query {
5756: my ($uname,$udom,$query,%filters)=@_;
5757: my $uhome=&homeserver($uname,$udom);
5758: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 5759: my $uhost=&hostname($uhome);
1.800 albertel 5760: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 5761: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
5762: $uhome);
1.479 albertel 5763: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 5764: return get_query_reply($queryid);
5765: }
5766:
1.818 raeburn 5767: # -------------------------- Update MySQL table for portfolio file
5768:
5769: sub update_portfolio_table {
1.821 raeburn 5770: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 5771: if ($group ne '') {
5772: $file_name =~s /^\Q$group\E//;
5773: }
1.818 raeburn 5774: my $homeserver = &homeserver($uname,$udom);
5775: my $queryid=
1.821 raeburn 5776: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
5777: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 5778: my $reply = &get_query_reply($queryid);
5779: return $reply;
5780: }
5781:
1.899 raeburn 5782: # -------------------------- Update MySQL allusers table
5783:
5784: sub update_allusers_table {
5785: my ($uname,$udom,$names) = @_;
5786: my $homeserver = &homeserver($uname,$udom);
5787: my $queryid=
5788: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
5789: 'lastname='.&escape($names->{'lastname'}).'%%'.
5790: 'firstname='.&escape($names->{'firstname'}).'%%'.
5791: 'middlename='.&escape($names->{'middlename'}).'%%'.
5792: 'generation='.&escape($names->{'generation'}).'%%'.
5793: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
5794: 'id='.&escape($names->{'id'}),$homeserver);
1.1075 raeburn 5795: return;
1.899 raeburn 5796: }
5797:
1.508 raeburn 5798: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 5799:
5800: sub fetch_enrollment_query {
1.511 raeburn 5801: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 5802: my $homeserver;
1.547 raeburn 5803: my $maxtries = 1;
1.508 raeburn 5804: if ($context eq 'automated') {
5805: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 5806: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 5807: } else {
5808: $homeserver = &homeserver($cnum,$dom);
5809: }
1.838 albertel 5810: my $host=&hostname($homeserver);
1.506 raeburn 5811: my $cmd = '';
1.1000 raeburn 5812: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 5813: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 5814: }
5815: $cmd =~ s/%%$//;
5816: $cmd = &escape($cmd);
5817: my $query = 'fetchenrollment';
1.620 albertel 5818: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 5819: unless ($queryid=~/^\Q$host\E\_/) {
5820: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
5821: return 'error: '.$queryid;
5822: }
1.506 raeburn 5823: my $reply = &get_query_reply($queryid);
1.547 raeburn 5824: my $tries = 1;
5825: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5826: $reply = &get_query_reply($queryid);
5827: $tries ++;
5828: }
1.526 raeburn 5829: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 5830: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 5831: } else {
1.901 albertel 5832: my @responses = split(/:/,$reply);
1.515 raeburn 5833: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 5834: foreach my $line (@responses) {
5835: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 5836: $$replyref{$key} = $value;
5837: }
5838: } else {
1.506 raeburn 5839: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 5840: foreach my $line (@responses) {
5841: my ($key,$value) = split(/=/,$line);
1.506 raeburn 5842: $$replyref{$key} = $value;
5843: if ($value > 0) {
1.800 albertel 5844: foreach my $item (@{$$affiliatesref{$key}}) {
5845: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 5846: my $destname = $pathname.'/'.$filename;
5847: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 5848: if ($xml_classlist =~ /^error/) {
5849: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
5850: } else {
1.506 raeburn 5851: if ( open(FILE,">$destname") ) {
5852: print FILE &unescape($xml_classlist);
5853: close(FILE);
1.526 raeburn 5854: } else {
5855: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 5856: }
5857: }
5858: }
5859: }
5860: }
5861: }
5862: return 'ok';
5863: }
5864: return 'error';
5865: }
5866:
1.242 www 5867: sub get_query_reply {
5868: my $queryid=shift;
1.240 www 5869: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
5870: my $reply='';
5871: for (1..100) {
5872: sleep 2;
5873: if (-e $replyfile.'.end') {
1.448 albertel 5874: if (open(my $fh,$replyfile)) {
1.904 albertel 5875: $reply = join('',<$fh>);
5876: close($fh);
1.240 www 5877: } else { return 'error: reply_file_error'; }
1.242 www 5878: return &unescape($reply);
5879: }
1.240 www 5880: }
1.242 www 5881: return 'timeout:'.$queryid;
1.240 www 5882: }
5883:
5884: sub courselog_query {
1.241 www 5885: #
5886: # possible filters:
5887: # url: url or symb
5888: # username
5889: # domain
5890: # action: view, submit, grade
5891: # start: timestamp
5892: # end: timestamp
5893: #
1.240 www 5894: my (%filters)=@_;
1.620 albertel 5895: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 5896: if ($filters{'url'}) {
5897: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
5898: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
5899: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
5900: }
1.620 albertel 5901: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
5902: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 5903: return &log_query($cname,$cdom,'courselog',%filters);
5904: }
5905:
5906: sub userlog_query {
1.858 raeburn 5907: #
5908: # possible filters:
5909: # action: log check role
5910: # start: timestamp
5911: # end: timestamp
5912: #
1.240 www 5913: my ($uname,$udom,%filters)=@_;
5914: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 5915: }
5916:
1.506 raeburn 5917: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
5918:
5919: sub auto_run {
1.508 raeburn 5920: my ($cnum,$cdom) = @_;
1.876 raeburn 5921: my $response = 0;
5922: my $settings;
5923: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
5924: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
5925: $settings = $domconfig{'autoenroll'};
5926: if ($settings->{'run'} eq '1') {
5927: $response = 1;
5928: }
5929: } else {
1.934 raeburn 5930: my $homeserver;
5931: if (&is_course($cdom,$cnum)) {
5932: $homeserver = &homeserver($cnum,$cdom);
5933: } else {
5934: $homeserver = &domain($cdom,'primary');
5935: }
5936: if ($homeserver ne 'no_host') {
5937: $response = &reply('autorun:'.$cdom,$homeserver);
5938: }
1.876 raeburn 5939: }
1.506 raeburn 5940: return $response;
5941: }
1.776 albertel 5942:
1.506 raeburn 5943: sub auto_get_sections {
1.508 raeburn 5944: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 5945: my $homeserver;
5946: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5947: $homeserver = &homeserver($cnum,$cdom);
5948: }
5949: if (!defined($homeserver)) {
5950: if ($cdom =~ /^$match_domain$/) {
5951: $homeserver = &domain($cdom,'primary');
5952: }
5953: }
5954: my @secs;
5955: if (defined($homeserver)) {
5956: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
5957: unless ($response eq 'refused') {
5958: @secs = split(/:/,$response);
5959: }
1.506 raeburn 5960: }
5961: return @secs;
5962: }
1.776 albertel 5963:
1.506 raeburn 5964: sub auto_new_course {
1.508 raeburn 5965: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
5966: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 5967: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 5968: return $response;
5969: }
1.776 albertel 5970:
1.506 raeburn 5971: sub auto_validate_courseID {
1.508 raeburn 5972: my ($cnum,$cdom,$inst_course_id) = @_;
5973: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 5974: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 5975: return $response;
5976: }
1.776 albertel 5977:
1.1007 raeburn 5978: sub auto_validate_instcode {
1.1020 raeburn 5979: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 5980: my ($homeserver,$response);
5981: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5982: $homeserver = &homeserver($cnum,$cdom);
5983: }
5984: if (!defined($homeserver)) {
5985: if ($cdom =~ /^$match_domain$/) {
5986: $homeserver = &domain($cdom,'primary');
5987: }
5988: }
1.1065 raeburn 5989: $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
5990: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 5991: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
5992: return ($outcome,$description);
1.1007 raeburn 5993: }
5994:
1.506 raeburn 5995: sub auto_create_password {
1.873 raeburn 5996: my ($cnum,$cdom,$authparam,$udom) = @_;
5997: my ($homeserver,$response);
1.506 raeburn 5998: my $create_passwd = 0;
5999: my $authchk = '';
1.873 raeburn 6000: if ($udom =~ /^$match_domain$/) {
6001: $homeserver = &domain($udom,'primary');
6002: }
6003: if ($homeserver eq '') {
6004: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
6005: $homeserver = &homeserver($cnum,$cdom);
6006: }
6007: }
6008: if ($homeserver eq '') {
6009: $authchk = 'nodomain';
1.506 raeburn 6010: } else {
1.873 raeburn 6011: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
6012: if ($response eq 'refused') {
6013: $authchk = 'refused';
6014: } else {
1.901 albertel 6015: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 6016: }
1.506 raeburn 6017: }
6018: return ($authparam,$create_passwd,$authchk);
6019: }
6020:
1.706 raeburn 6021: sub auto_photo_permission {
6022: my ($cnum,$cdom,$students) = @_;
6023: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 6024: my ($outcome,$perm_reqd,$conditions) =
6025: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 6026: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6027: return (undef,undef);
6028: }
1.706 raeburn 6029: return ($outcome,$perm_reqd,$conditions);
6030: }
6031:
6032: sub auto_checkphotos {
6033: my ($uname,$udom,$pid) = @_;
6034: my $homeserver = &homeserver($uname,$udom);
6035: my ($result,$resulttype);
6036: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 6037: &escape($uname).':'.&escape($pid),
6038: $homeserver));
1.709 albertel 6039: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6040: return (undef,undef);
6041: }
1.706 raeburn 6042: if ($outcome) {
6043: ($result,$resulttype) = split(/:/,$outcome);
6044: }
6045: return ($result,$resulttype);
6046: }
6047:
6048: sub auto_photochoice {
6049: my ($cnum,$cdom) = @_;
6050: my $homeserver = &homeserver($cnum,$cdom);
6051: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 6052: &escape($cdom),
6053: $homeserver)));
1.709 albertel 6054: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
6055: return (undef,undef);
6056: }
1.706 raeburn 6057: return ($update,$comment);
6058: }
6059:
6060: sub auto_photoupdate {
6061: my ($affiliatesref,$dom,$cnum,$photo) = @_;
6062: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 6063: my $host=&hostname($homeserver);
1.706 raeburn 6064: my $cmd = '';
6065: my $maxtries = 1;
1.800 albertel 6066: foreach my $affiliate (keys(%{$affiliatesref})) {
6067: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 6068: }
6069: $cmd =~ s/%%$//;
6070: $cmd = &escape($cmd);
6071: my $query = 'institutionalphotos';
6072: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
6073: unless ($queryid=~/^\Q$host\E\_/) {
6074: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
6075: return 'error: '.$queryid;
6076: }
6077: my $reply = &get_query_reply($queryid);
6078: my $tries = 1;
6079: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
6080: $reply = &get_query_reply($queryid);
6081: $tries ++;
6082: }
6083: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
6084: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
6085: } else {
6086: my @responses = split(/:/,$reply);
6087: my $outcome = shift(@responses);
6088: foreach my $item (@responses) {
6089: my ($key,$value) = split(/=/,$item);
6090: $$photo{$key} = $value;
6091: }
6092: return $outcome;
6093: }
6094: return 'error';
6095: }
6096:
1.521 raeburn 6097: sub auto_instcode_format {
1.793 albertel 6098: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
6099: $cat_order) = @_;
1.521 raeburn 6100: my $courses = '';
1.772 raeburn 6101: my @homeservers;
1.521 raeburn 6102: if ($caller eq 'global') {
1.841 albertel 6103: my %servers = &get_servers($codedom,'library');
6104: foreach my $tryserver (keys(%servers)) {
6105: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6106: push(@homeservers,$tryserver);
6107: }
1.584 raeburn 6108: }
1.1022 raeburn 6109: } elsif ($caller eq 'requests') {
6110: if ($codedom =~ /^$match_domain$/) {
6111: my $chome = &domain($codedom,'primary');
6112: unless ($chome eq 'no_host') {
6113: push(@homeservers,$chome);
6114: }
6115: }
1.521 raeburn 6116: } else {
1.772 raeburn 6117: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 6118: }
1.793 albertel 6119: foreach my $code (keys(%{$instcodes})) {
6120: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 6121: }
6122: chop($courses);
1.772 raeburn 6123: my $ok_response = 0;
6124: my $response;
6125: while (@homeservers > 0 && $ok_response == 0) {
6126: my $server = shift(@homeservers);
6127: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
6128: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
6129: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 6130: split(/:/,$response);
1.772 raeburn 6131: %{$codes} = (%{$codes},&str2hash($codes_str));
6132: push(@{$codetitles},&str2array($codetitles_str));
6133: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
6134: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
6135: $ok_response = 1;
6136: }
6137: }
6138: if ($ok_response) {
1.521 raeburn 6139: return 'ok';
1.772 raeburn 6140: } else {
6141: return $response;
1.521 raeburn 6142: }
6143: }
6144:
1.792 raeburn 6145: sub auto_instcode_defaults {
6146: my ($domain,$returnhash,$code_order) = @_;
6147: my @homeservers;
1.841 albertel 6148:
6149: my %servers = &get_servers($domain,'library');
6150: foreach my $tryserver (keys(%servers)) {
6151: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6152: push(@homeservers,$tryserver);
6153: }
1.792 raeburn 6154: }
1.841 albertel 6155:
1.792 raeburn 6156: my $response;
1.841 albertel 6157: foreach my $server (@homeservers) {
1.792 raeburn 6158: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 6159: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
6160:
6161: foreach my $pair (split(/\&/,$response)) {
6162: my ($name,$value)=split(/\=/,$pair);
6163: if ($name eq 'code_order') {
6164: @{$code_order} = split(/\&/,&unescape($value));
6165: } else {
6166: $returnhash->{&unescape($name)}=&unescape($value);
6167: }
6168: }
6169: return 'ok';
1.792 raeburn 6170: }
1.841 albertel 6171:
6172: return $response;
1.1003 raeburn 6173: }
6174:
6175: sub auto_possible_instcodes {
1.1007 raeburn 6176: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
6177: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
6178: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
6179: return;
6180: }
1.1003 raeburn 6181: my (@homeservers,$uhome);
6182: if (defined(&domain($domain,'primary'))) {
6183: $uhome=&domain($domain,'primary');
6184: push(@homeservers,&domain($domain,'primary'));
6185: } else {
6186: my %servers = &get_servers($domain,'library');
6187: foreach my $tryserver (keys(%servers)) {
6188: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
6189: push(@homeservers,$tryserver);
6190: }
6191: }
6192: }
6193: my $response;
6194: foreach my $server (@homeservers) {
6195: $response=&reply('autopossibleinstcodes:'.$domain,$server);
6196: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 6197: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
6198: split(':',$response);
6199: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
6200: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 6201: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 6202: my ($name,$value)=split('=',$item);
6203: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 6204: }
6205: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 6206: my ($name,$value)=split('=',$item);
6207: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 6208: }
6209: return 'ok';
6210: }
6211: return $response;
6212: }
1.792 raeburn 6213:
1.1010 raeburn 6214: sub auto_courserequest_checks {
6215: my ($dom) = @_;
1.1020 raeburn 6216: my ($homeserver,%validations);
6217: if ($dom =~ /^$match_domain$/) {
6218: $homeserver = &domain($dom,'primary');
6219: }
6220: unless ($homeserver eq 'no_host') {
6221: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
6222: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
6223: my @items = split(/&/,$response);
6224: foreach my $item (@items) {
6225: my ($key,$value) = split('=',$item);
6226: $validations{&unescape($key)} = &thaw_unescape($value);
6227: }
6228: }
6229: }
1.1010 raeburn 6230: return %validations;
6231: }
6232:
1.1020 raeburn 6233: sub auto_courserequest_validation {
6234: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
6235: my ($homeserver,$response);
6236: if ($dom =~ /^$match_domain$/) {
6237: $homeserver = &domain($dom,'primary');
6238: }
6239: unless ($homeserver eq 'no_host') {
1.1021 raeburn 6240:
1.1020 raeburn 6241: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 6242: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 6243: ':'.&escape($instcode).':'.&escape($instseclist),
6244: $homeserver));
6245: }
6246: return $response;
6247: }
6248:
1.777 albertel 6249: sub auto_validate_class_sec {
1.918 raeburn 6250: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 6251: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 6252: my $ownerlist;
6253: if (ref($owners) eq 'ARRAY') {
6254: $ownerlist = join(',',@{$owners});
6255: } else {
6256: $ownerlist = $owners;
6257: }
1.773 raeburn 6258: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 6259: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 6260: return $response;
6261: }
6262:
1.679 raeburn 6263: # ------------------------------------------------------- Course Group routines
6264:
6265: sub get_coursegroups {
1.809 raeburn 6266: my ($cdom,$cnum,$group,$namespace) = @_;
6267: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 6268: }
6269:
1.679 raeburn 6270: sub modify_coursegroup {
6271: my ($cdom,$cnum,$groupsettings) = @_;
6272: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
6273: }
6274:
1.809 raeburn 6275: sub toggle_coursegroup_status {
6276: my ($cdom,$cnum,$group,$action) = @_;
6277: my ($from_namespace,$to_namespace);
6278: if ($action eq 'delete') {
6279: $from_namespace = 'coursegroups';
6280: $to_namespace = 'deleted_groups';
6281: } else {
6282: $from_namespace = 'deleted_groups';
6283: $to_namespace = 'coursegroups';
6284: }
6285: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 6286: if (my $tmp = &error(%curr_group)) {
6287: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
6288: return ('read error',$tmp);
6289: } else {
6290: my %savedsettings = %curr_group;
1.809 raeburn 6291: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 6292: my $deloutcome;
6293: if ($result eq 'ok') {
1.809 raeburn 6294: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 6295: } else {
6296: return ('write error',$result);
6297: }
6298: if ($deloutcome eq 'ok') {
6299: return 'ok';
6300: } else {
6301: return ('delete error',$deloutcome);
6302: }
6303: }
6304: }
6305:
1.679 raeburn 6306: sub modify_group_roles {
1.957 raeburn 6307: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 6308: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
6309: my $role = 'gr/'.&escape($userprivs);
6310: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 6311: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 6312: if ($result eq 'ok') {
6313: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
6314: }
1.679 raeburn 6315: return $result;
6316: }
6317:
6318: sub modify_coursegroup_membership {
6319: my ($cdom,$cnum,$membership) = @_;
6320: my $result = &put('groupmembership',$membership,$cdom,$cnum);
6321: return $result;
6322: }
6323:
1.682 raeburn 6324: sub get_active_groups {
6325: my ($udom,$uname,$cdom,$cnum) = @_;
6326: my $now = time;
6327: my %groups = ();
6328: foreach my $key (keys(%env)) {
1.811 albertel 6329: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 6330: my ($start,$end) = split(/\./,$env{$key});
6331: if (($end!=0) && ($end<$now)) { next; }
6332: if (($start!=0) && ($start>$now)) { next; }
6333: if ($1 eq $cdom && $2 eq $cnum) {
6334: $groups{$3} = $env{$key} ;
6335: }
6336: }
6337: }
6338: return %groups;
6339: }
6340:
1.683 raeburn 6341: sub get_group_membership {
6342: my ($cdom,$cnum,$group) = @_;
6343: return(&dump('groupmembership',$cdom,$cnum,$group));
6344: }
6345:
6346: sub get_users_groups {
6347: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 6348: my @usersgroups;
1.683 raeburn 6349: my $cachetime=1800;
6350:
6351: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 6352: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
6353: if (defined($cached)) {
1.734 albertel 6354: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 6355: } else {
6356: $grouplist = '';
1.816 raeburn 6357: my $courseurl = &courseid_to_courseurl($courseid);
6358: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 6359: my $access_end = $env{'course.'.$courseid.
6360: '.default_enrollment_end_date'};
6361: my $now = time;
6362: foreach my $key (keys(%roleshash)) {
6363: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
6364: my $group = $1;
6365: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
6366: my $start = $2;
6367: my $end = $1;
6368: if ($start == -1) { next; } # deleted from group
6369: if (($start!=0) && ($start>$now)) { next; }
6370: if (($end!=0) && ($end<$now)) {
6371: if ($access_end && $access_end < $now) {
6372: if ($access_end - $end < 86400) {
6373: push(@usersgroups,$group);
1.733 raeburn 6374: }
6375: }
1.817 raeburn 6376: next;
1.733 raeburn 6377: }
1.817 raeburn 6378: push(@usersgroups,$group);
1.683 raeburn 6379: }
6380: }
6381: }
1.817 raeburn 6382: @usersgroups = &sort_course_groups($courseid,@usersgroups);
6383: $grouplist = join(':',@usersgroups);
6384: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 6385: }
1.733 raeburn 6386: return @usersgroups;
1.683 raeburn 6387: }
6388:
6389: sub devalidate_getgroups_cache {
6390: my ($udom,$uname,$cdom,$cnum)=@_;
6391: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 6392:
1.683 raeburn 6393: my $hashid="$udom:$uname:$courseid";
6394: &devalidate_cache_new('getgroups',$hashid);
6395: }
6396:
1.12 www 6397: # ------------------------------------------------------------------ Plain Text
6398:
6399: sub plaintext {
1.988 raeburn 6400: my ($short,$type,$cid,$forcedefault) = @_;
1.1046 raeburn 6401: if ($short =~ m{^cr/}) {
1.758 albertel 6402: return (split('/',$short))[-1];
6403: }
1.742 raeburn 6404: if (!defined($cid)) {
6405: $cid = $env{'request.course.id'};
6406: }
6407: my %rolenames = (
1.1008 raeburn 6408: Course => 'std',
6409: Community => 'alt1',
1.742 raeburn 6410: );
1.1037 raeburn 6411: if ($cid ne '') {
6412: if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
6413: unless ($forcedefault) {
6414: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
6415: &Apache::lonlocal::mt_escape(\$roletext);
6416: return &Apache::lonlocal::mt($roletext);
6417: }
6418: }
6419: }
6420: if ((defined($type)) && (defined($rolenames{$type})) &&
6421: (defined($rolenames{$type})) &&
6422: (defined($prp{$short}{$rolenames{$type}}))) {
1.742 raeburn 6423: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
1.1037 raeburn 6424: } elsif ($cid ne '') {
6425: my $crstype = $env{'course.'.$cid.'.type'};
6426: if (($crstype ne '') && (defined($rolenames{$crstype})) &&
6427: (defined($prp{$short}{$rolenames{$crstype}}))) {
6428: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$crstype}});
6429: }
1.742 raeburn 6430: }
1.1037 raeburn 6431: return &Apache::lonlocal::mt($prp{$short}{'std'});
1.12 www 6432: }
6433:
6434: # ----------------------------------------------------------------- Assign Role
6435:
6436: sub assignrole {
1.957 raeburn 6437: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
6438: $context)=@_;
1.21 www 6439: my $mrole;
6440: if ($role =~ /^cr\//) {
1.393 www 6441: my $cwosec=$url;
1.811 albertel 6442: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 6443: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 6444: my $refused = 1;
6445: if ($context eq 'requestcourses') {
6446: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
6447: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
6448: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
6449: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
6450: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6451: if ($crsenv{'internal.courseowner'} eq
6452: $env{'user.name'}.':'.$env{'user.domain'}) {
6453: $refused = '';
6454: }
6455: }
6456: }
6457: }
6458: }
6459: if ($refused) {
6460: &logthis('Refused custom assignrole: '.
6461: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
6462: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
6463: return 'refused';
6464: }
1.104 www 6465: }
1.21 www 6466: $mrole='cr';
1.678 raeburn 6467: } elsif ($role =~ /^gr\//) {
6468: my $cwogrp=$url;
1.811 albertel 6469: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 6470: unless (&allowed('mdg',$cwogrp)) {
6471: &logthis('Refused group assignrole: '.
6472: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
6473: $env{'user.name'}.' at '.$env{'user.domain'});
6474: return 'refused';
6475: }
6476: $mrole='gr';
1.21 www 6477: } else {
1.82 www 6478: my $cwosec=$url;
1.811 albertel 6479: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 6480: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
6481: my $refused;
6482: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
6483: if (!(&allowed('c'.$role,$url))) {
6484: $refused = 1;
6485: }
6486: } else {
6487: $refused = 1;
6488: }
1.947 raeburn 6489: if ($refused) {
1.1045 raeburn 6490: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
6491: if (!$selfenroll && $context eq 'course') {
6492: my %crsenv;
6493: if ($role eq 'cc' || $role eq 'co') {
6494: %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6495: if (($role eq 'cc') && ($cnum !~ /^$match_community$/)) {
6496: if ($env{'request.role'} eq 'cc./'.$cdom.'/'.$cnum) {
6497: if ($crsenv{'internal.courseowner'} eq
6498: $env{'user.name'}.':'.$env{'user.domain'}) {
6499: $refused = '';
6500: }
6501: }
6502: } elsif (($role eq 'co') && ($cnum =~ /^$match_community$/)) {
6503: if ($env{'request.role'} eq 'co./'.$cdom.'/'.$cnum) {
6504: if ($crsenv{'internal.courseowner'} eq
6505: $env{'user.name'}.':'.$env{'user.domain'}) {
6506: $refused = '';
6507: }
6508: }
6509: }
6510: }
6511: } elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
1.947 raeburn 6512: $refused = '';
1.1017 raeburn 6513: } elsif ($context eq 'requestcourses') {
1.1041 raeburn 6514: my @possroles = ('st','ta','ep','in','cc','co');
1.1026 raeburn 6515: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
1.1041 raeburn 6516: my $wrongcc;
6517: if ($cnum =~ /^$match_community$/) {
6518: $wrongcc = 1 if ($role eq 'cc');
6519: } else {
6520: $wrongcc = 1 if ($role eq 'co');
6521: }
6522: unless ($wrongcc) {
6523: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6524: if ($crsenv{'internal.courseowner'} eq
6525: $env{'user.name'}.':'.$env{'user.domain'}) {
6526: $refused = '';
6527: }
1.1017 raeburn 6528: }
6529: }
6530: }
6531: if ($refused) {
1.947 raeburn 6532: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
6533: ' '.$role.' '.$end.' '.$start.' by '.
6534: $env{'user.name'}.' at '.$env{'user.domain'});
6535: return 'refused';
6536: }
1.932 raeburn 6537: }
1.104 www 6538: }
1.21 www 6539: $mrole=$role;
6540: }
1.620 albertel 6541: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 6542: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 6543: if ($end) { $command.='_'.$end; }
1.21 www 6544: if ($start) {
6545: if ($end) {
1.81 www 6546: $command.='_'.$start;
1.21 www 6547: } else {
1.81 www 6548: $command.='_0_'.$start;
1.21 www 6549: }
6550: }
1.739 raeburn 6551: my $origstart = $start;
6552: my $origend = $end;
1.957 raeburn 6553: my $delflag;
1.357 www 6554: # actually delete
6555: if ($deleteflag) {
1.373 www 6556: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 6557: # modify command to delete the role
1.620 albertel 6558: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 6559: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 6560: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 6561: # set start and finish to negative values for userrolelog
6562: $start=-1;
6563: $end=-1;
1.957 raeburn 6564: $delflag = 1;
1.357 www 6565: }
6566: }
6567: # send command
1.349 www 6568: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 6569: # log new user role if status is ok
1.349 www 6570: if ($answer eq 'ok') {
1.663 raeburn 6571: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 6572: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 6573: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 6574: unless ($role =~ /^gr/) {
6575: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 6576: $origstart,$selfenroll,$context);
1.739 raeburn 6577: }
1.1053 raeburn 6578: if ($role eq 'cc') {
6579: &autoupdate_coowners($url,$end,$start,$uname,$udom);
6580: }
1.349 www 6581: }
6582: return $answer;
1.169 harris41 6583: }
6584:
1.1053 raeburn 6585: sub autoupdate_coowners {
6586: my ($url,$end,$start,$uname,$udom) = @_;
6587: my ($cdom,$cnum) = ($url =~ m{^/($match_domain)/($match_courseid)});
6588: if (($cdom ne '') && ($cnum ne '')) {
6589: my $now = time;
6590: my %domdesign = &Apache::loncommon::get_domainconf($cdom);
6591: if ($domdesign{$cdom.'.autoassign.co-owners'}) {
6592: my %coursehash = &coursedescription($cdom.'_'.$cnum);
6593: my $instcode = $coursehash{'internal.coursecode'};
6594: if ($instcode ne '') {
1.1056 raeburn 6595: if (($start && $start <= $now) && ($end == 0) || ($end > $now)) {
6596: unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
1.1053 raeburn 6597: my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
1.1056 raeburn 6598: my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
6599: if ($result eq 'valid') {
6600: if ($coursehash{'internal.co-owners'}) {
1.1053 raeburn 6601: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
6602: push(@newcoowners,$coowner);
6603: }
6604: unless (grep(/^\Q$uname\E:\Q$udom\E$/,@newcoowners)) {
6605: push(@newcoowners,$uname.':'.$udom);
6606: }
6607: @newcoowners = sort(@newcoowners);
6608: } else {
6609: push(@newcoowners,$uname.':'.$udom);
6610: }
6611: } else {
6612: if ($coursehash{'internal.co-owners'}) {
6613: foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
6614: unless ($coowner eq $uname.':'.$udom) {
6615: push(@newcoowners,$coowner);
6616: }
6617: }
6618: unless (@newcoowners > 0) {
6619: $delcoowners = 1;
6620: $coowners = '';
6621: }
6622: }
6623: }
6624: if (@newcoowners || $delcoowners) {
6625: &store_coowners($cdom,$cnum,$coursehash{'home'},
6626: $delcoowners,@newcoowners);
6627: }
6628: }
6629: }
6630: }
6631: }
6632: }
6633: }
6634:
6635: sub store_coowners {
6636: my ($cdom,$cnum,$chome,$delcoowners,@newcoowners) = @_;
6637: my $cid = $cdom.'_'.$cnum;
6638: my ($coowners,$delresult,$putresult);
6639: if (@newcoowners) {
6640: $coowners = join(',',@newcoowners);
6641: my %coownershash = (
6642: 'internal.co-owners' => $coowners,
6643: );
6644: $putresult = &put('environment',\%coownershash,$cdom,$cnum);
6645: if ($putresult eq 'ok') {
6646: if ($env{'course.'.$cid.'.num'} eq $cnum) {
6647: &appenv({'course.'.$cid.'.internal.co-owners' => $coowners});
6648: }
6649: }
6650: }
6651: if ($delcoowners) {
6652: $delresult = &Apache::lonnet::del('environment',['internal.co-owners'],$cdom,$cnum);
6653: if ($delresult eq 'ok') {
6654: if ($env{'course.'.$cid.'.internal.co-owners'}) {
6655: &Apache::lonnet::delenv('course.'.$cid.'.internal.co-owners');
6656: }
6657: }
6658: }
6659: if (($putresult eq 'ok') || ($delresult eq 'ok')) {
6660: my %crsinfo =
6661: &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
6662: if (ref($crsinfo{$cid}) eq 'HASH') {
6663: $crsinfo{$cid}{'co-owners'} = \@newcoowners;
6664: my $cidput = &Apache::lonnet::courseidput($cdom,\%crsinfo,$chome,'notime');
6665: }
6666: }
6667: }
6668:
1.169 harris41 6669: # -------------------------------------------------- Modify user authentication
1.197 www 6670: # Overrides without validation
6671:
1.169 harris41 6672: sub modifyuserauth {
6673: my ($udom,$uname,$umode,$upass)=@_;
6674: my $uhome=&homeserver($uname,$udom);
1.197 www 6675: unless (&allowed('mau',$udom)) { return 'refused'; }
6676: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 6677: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6678: ' in domain '.$env{'request.role.domain'});
1.169 harris41 6679: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
6680: &escape($upass),$uhome);
1.620 albertel 6681: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 6682: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
6683: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
6684: &log($udom,,$uname,$uhome,
1.620 albertel 6685: 'Authentication changed by '.$env{'user.domain'}.', '.
6686: $env{'user.name'}.', '.$umode.
1.197 www 6687: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 6688: unless ($reply eq 'ok') {
1.197 www 6689: &logthis('Authentication mode error: '.$reply);
1.169 harris41 6690: return 'error: '.$reply;
6691: }
1.170 harris41 6692: return 'ok';
1.80 www 6693: }
6694:
1.81 www 6695: # --------------------------------------------------------------- Modify a user
1.80 www 6696:
1.81 www 6697: sub modifyuser {
1.206 matthew 6698: my ($udom, $uname, $uid,
6699: $umode, $upass, $first,
6700: $middle, $last, $gene,
1.1058 raeburn 6701: $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
1.807 albertel 6702: $udom= &LONCAPA::clean_domain($udom);
6703: $uname=&LONCAPA::clean_username($uname);
1.1059 raeburn 6704: my $showcandelete = 'none';
6705: if (ref($candelete) eq 'ARRAY') {
6706: if (@{$candelete} > 0) {
6707: $showcandelete = join(', ',@{$candelete});
6708: }
6709: }
1.81 www 6710: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 6711: $umode.', '.$first.', '.$middle.', '.
1.1059 raeburn 6712: $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
1.206 matthew 6713: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
6714: ' desiredhome not specified').
1.620 albertel 6715: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6716: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 6717: my $uhome=&homeserver($uname,$udom,'true');
1.1075 raeburn 6718: my $newuser;
6719: if ($uhome eq 'no_host') {
6720: $newuser = 1;
6721: }
1.80 www 6722: # ----------------------------------------------------------------- Create User
1.406 albertel 6723: if (($uhome eq 'no_host') &&
6724: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 6725: my $unhome='';
1.844 albertel 6726: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 6727: $unhome = $desiredhome;
1.620 albertel 6728: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
6729: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 6730: } else { # load balancing routine for determining $unhome
1.81 www 6731: my $loadm=10000000;
1.841 albertel 6732: my %servers = &get_servers($udom,'library');
6733: foreach my $tryserver (keys(%servers)) {
6734: my $answer=reply('load',$tryserver);
6735: if (($answer=~/\d+/) && ($answer<$loadm)) {
6736: $loadm=$answer;
6737: $unhome=$tryserver;
6738: }
1.80 www 6739: }
6740: }
6741: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 6742: return 'error: unable to find a home server for '.$uname.
6743: ' in domain '.$udom;
1.80 www 6744: }
6745: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
6746: &escape($upass),$unhome);
6747: unless ($reply eq 'ok') {
6748: return 'error: '.$reply;
6749: }
1.230 stredwic 6750: $uhome=&homeserver($uname,$udom,'true');
1.80 www 6751: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 6752: return 'error: unable verify users home machine.';
1.80 www 6753: }
1.209 matthew 6754: } # End of creation of new user
1.80 www 6755: # ---------------------------------------------------------------------- Add ID
6756: if ($uid) {
6757: $uid=~tr/A-Z/a-z/;
6758: my %uidhash=&idrget($udom,$uname);
1.196 www 6759: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
6760: && (!$forceid)) {
1.80 www 6761: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 6762: return 'error: user id "'.$uid.'" does not match '.
6763: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 6764: }
6765: } else {
6766: &idput($udom,($uname => $uid));
6767: }
6768: }
6769: # -------------------------------------------------------------- Add names, etc
1.313 matthew 6770: my @tmp=&get('environment',
1.899 raeburn 6771: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 6772: 'permanentemail','inststatus'],
1.134 albertel 6773: $udom,$uname);
1.1075 raeburn 6774: my (%names,%oldnames);
1.313 matthew 6775: if ($tmp[0] =~ m/^error:.*/) {
6776: %names=();
6777: } else {
6778: %names = @tmp;
1.1075 raeburn 6779: %oldnames = %names;
1.313 matthew 6780: }
1.388 www 6781: #
1.1058 raeburn 6782: # If name, email and/or uid are blank (e.g., because an uploaded file
6783: # of users did not contain them), do not overwrite existing values
6784: # unless field is in $candelete array ref.
6785: #
6786:
6787: my @fields = ('firstname','middlename','lastname','generation',
6788: 'permanentemail','id');
6789: my %newvalues;
6790: if (ref($candelete) eq 'ARRAY') {
6791: foreach my $field (@fields) {
6792: if (grep(/^\Q$field\E$/,@{$candelete})) {
6793: if ($field eq 'firstname') {
6794: $names{$field} = $first;
6795: } elsif ($field eq 'middlename') {
6796: $names{$field} = $middle;
6797: } elsif ($field eq 'lastname') {
6798: $names{$field} = $last;
6799: } elsif ($field eq 'generation') {
6800: $names{$field} = $gene;
6801: } elsif ($field eq 'permanentemail') {
6802: $names{$field} = $email;
6803: } elsif ($field eq 'id') {
6804: $names{$field} = $uid;
6805: }
6806: }
6807: }
6808: }
1.388 www 6809: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 6810: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 6811: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 6812: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 6813: if ($email) {
6814: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 6815: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 6816: }
1.899 raeburn 6817: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 6818: if (defined($inststatus)) {
6819: $names{'inststatus'} = '';
6820: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
6821: if (ref($usertypes) eq 'HASH') {
6822: my @okstatuses;
6823: foreach my $item (split(/:/,$inststatus)) {
6824: if (defined($usertypes->{$item})) {
6825: push(@okstatuses,$item);
6826: }
6827: }
6828: if (@okstatuses) {
6829: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
6830: }
6831: }
6832: }
1.1075 raeburn 6833: my $logmsg = $udom.', '.$uname.', '.$uid.', '.
1.963 raeburn 6834: $umode.', '.$first.', '.$middle.', '.
1.1075 raeburn 6835: $last.', '.$gene.', '.$email.', '.$inststatus;
1.963 raeburn 6836: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
6837: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
6838: } else {
6839: $logmsg .= ' during self creation';
6840: }
1.1075 raeburn 6841: my $changed;
6842: if ($newuser) {
6843: $changed = 1;
6844: } else {
6845: foreach my $field (@fields) {
6846: if ($names{$field} ne $oldnames{$field}) {
6847: $changed = 1;
6848: last;
6849: }
6850: }
6851: }
6852: unless ($changed) {
6853: $logmsg = 'No changes in user information needed for: '.$logmsg;
6854: &logthis($logmsg);
6855: return 'ok';
6856: }
6857: my $reply = &put('environment', \%names, $udom,$uname);
6858: if ($reply ne 'ok') {
6859: return 'error: '.$reply;
6860: }
6861: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
6862: &devalidate_cache_new('namescache',$uname.':'.$udom);
6863: $logmsg = 'Success modifying user '.$logmsg;
1.963 raeburn 6864: &logthis($logmsg);
1.134 albertel 6865: return 'ok';
1.80 www 6866: }
6867:
1.81 www 6868: # -------------------------------------------------------------- Modify student
1.80 www 6869:
1.81 www 6870: sub modifystudent {
6871: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 6872: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 6873: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 6874: if (!$cid) {
1.620 albertel 6875: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6876: return 'not_in_class';
6877: }
1.80 www 6878: }
6879: # --------------------------------------------------------------- Make the user
1.81 www 6880: my $reply=&modifyuser
1.209 matthew 6881: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 6882: $desiredhome,$email,$inststatus);
1.80 www 6883: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 6884: # This will cause &modify_student_enrollment to get the uid from the
6885: # students environment
6886: $uid = undef if (!$forceid);
1.455 albertel 6887: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 6888: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 6889: return $reply;
6890: }
6891:
6892: sub modify_student_enrollment {
1.957 raeburn 6893: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 6894: my ($cdom,$cnum,$chome);
6895: if (!$cid) {
1.620 albertel 6896: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6897: return 'not_in_class';
6898: }
1.620 albertel 6899: $cdom=$env{'course.'.$cid.'.domain'};
6900: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 6901: } else {
6902: ($cdom,$cnum)=split(/_/,$cid);
6903: }
1.620 albertel 6904: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 6905: if (!$chome) {
1.457 raeburn 6906: $chome=&homeserver($cnum,$cdom);
1.297 matthew 6907: }
1.455 albertel 6908: if (!$chome) { return 'unknown_course'; }
1.297 matthew 6909: # Make sure the user exists
1.81 www 6910: my $uhome=&homeserver($uname,$udom);
6911: if (($uhome eq '') || ($uhome eq 'no_host')) {
6912: return 'error: no such user';
6913: }
1.297 matthew 6914: # Get student data if we were not given enough information
6915: if (!defined($first) || $first eq '' ||
6916: !defined($last) || $last eq '' ||
6917: !defined($uid) || $uid eq '' ||
6918: !defined($middle) || $middle eq '' ||
6919: !defined($gene) || $gene eq '') {
1.294 matthew 6920: # They did not supply us with enough data to enroll the student, so
6921: # we need to pick up more information.
1.297 matthew 6922: my %tmp = &get('environment',
1.294 matthew 6923: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 6924: ,$udom,$uname);
6925:
1.800 albertel 6926: #foreach my $key (keys(%tmp)) {
6927: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 6928: #}
1.294 matthew 6929: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
6930: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
6931: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 6932: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 6933: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
6934: }
1.556 albertel 6935: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 6936: my $reply=cput('classlist',
6937: {"$uname:$udom" =>
1.515 raeburn 6938: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 6939: $cdom,$cnum);
1.81 www 6940: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
6941: return 'error: '.$reply;
1.652 albertel 6942: } else {
6943: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 6944: }
1.297 matthew 6945: # Add student role to user
1.83 www 6946: my $uurl='/'.$cid;
1.81 www 6947: $uurl=~s/\_/\//g;
6948: if ($usec) {
6949: $uurl.='/'.$usec;
6950: }
1.957 raeburn 6951: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 6952: }
6953:
1.556 albertel 6954: sub format_name {
6955: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
6956: my $name;
6957: if ($first ne 'lastname') {
6958: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
6959: } else {
6960: if ($lastname=~/\S/) {
6961: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
6962: $name=~s/\s+,/,/;
6963: } else {
6964: $name.= $firstname.' '.$middlename.' '.$generation;
6965: }
6966: }
6967: $name=~s/^\s+//;
6968: $name=~s/\s+$//;
6969: $name=~s/\s+/ /g;
6970: return $name;
6971: }
6972:
1.84 www 6973: # ------------------------------------------------- Write to course preferences
6974:
6975: sub writecoursepref {
6976: my ($courseid,%prefs)=@_;
6977: $courseid=~s/^\///;
6978: $courseid=~s/\_/\//g;
6979: my ($cdomain,$cnum)=split(/\//,$courseid);
6980: my $chome=homeserver($cnum,$cdomain);
6981: if (($chome eq '') || ($chome eq 'no_host')) {
6982: return 'error: no such course';
6983: }
6984: my $cstring='';
1.800 albertel 6985: foreach my $pref (keys(%prefs)) {
6986: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 6987: }
1.84 www 6988: $cstring=~s/\&$//;
6989: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
6990: }
6991:
6992: # ---------------------------------------------------------- Make/modify course
6993:
6994: sub createcourse {
1.741 raeburn 6995: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 6996: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 6997: $url=&declutter($url);
6998: my $cid='';
1.1028 raeburn 6999: if ($context eq 'requestcourses') {
7000: my $can_create = 0;
7001: my ($ownername,$ownerdom) = split(':',$course_owner);
7002: if ($udom eq $ownerdom) {
7003: if (&usertools_access($ownername,$ownerdom,$category,undef,
7004: $context)) {
7005: $can_create = 1;
7006: }
7007: } else {
7008: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
7009: $category);
7010: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
7011: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
7012: if (@curr > 0) {
7013: my @options = qw(approval validate autolimit);
7014: my $optregex = join('|',@options);
7015: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
7016: $can_create = 1;
7017: }
7018: }
7019: }
7020: }
7021: if ($can_create) {
7022: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
7023: unless (&allowed('ccc',$udom)) {
7024: return 'refused';
7025: }
1.1017 raeburn 7026: }
7027: } else {
7028: return 'refused';
7029: }
1.1028 raeburn 7030: } elsif (!&allowed('ccc',$udom)) {
7031: return 'refused';
1.84 www 7032: }
1.1011 raeburn 7033: # --------------------------------------------------------------- Get Unique ID
7034: my $uname;
7035: if ($cnum =~ /^$match_courseid$/) {
7036: my $chome=&homeserver($cnum,$udom,'true');
7037: if (($chome eq '') || ($chome eq 'no_host')) {
7038: $uname = $cnum;
7039: } else {
1.1038 raeburn 7040: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 7041: }
7042: } else {
1.1038 raeburn 7043: $uname = &generate_coursenum($udom,$crstype);
1.1011 raeburn 7044: }
7045: return $uname if ($uname =~ /^error/);
7046: # -------------------------------------------------- Check supplied server name
1.1052 raeburn 7047: if (!defined($course_server)) {
7048: if (defined(&domain($udom,'primary'))) {
7049: $course_server = &domain($udom,'primary');
7050: } else {
7051: $course_server = $env{'user.home'};
7052: }
7053: }
7054: my %host_servers =
7055: &Apache::lonnet::get_servers($udom,'library');
7056: unless ($host_servers{$course_server}) {
7057: return 'error: invalid home server for course: '.$course_server;
1.264 matthew 7058: }
1.84 www 7059: # ------------------------------------------------------------- Make the course
7060: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 7061: $course_server);
1.84 www 7062: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 7063: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 7064: if (($uhome eq '') || ($uhome eq 'no_host')) {
7065: return 'error: no such course';
7066: }
1.271 www 7067: # ----------------------------------------------------------------- Course made
1.516 raeburn 7068: # log existence
1.1029 raeburn 7069: my $now = time;
1.918 raeburn 7070: my $newcourse = {
7071: $udom.'_'.$uname => {
1.921 raeburn 7072: description => $description,
7073: inst_code => $inst_code,
7074: owner => $course_owner,
7075: type => $crstype,
1.1029 raeburn 7076: creator => $env{'user.name'}.':'.
7077: $env{'user.domain'},
7078: created => $now,
7079: context => $context,
1.918 raeburn 7080: },
7081: };
1.921 raeburn 7082: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 7083: # set toplevel url
1.271 www 7084: my $topurl=$url;
7085: unless ($nonstandard) {
7086: # ------------------------------------------ For standard courses, make top url
7087: my $mapurl=&clutter($url);
1.278 www 7088: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 7089: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 7090: <map>
7091: <resource id="1" type="start"></resource>
7092: <resource id="2" src="$mapurl"></resource>
7093: <resource id="3" type="finish"></resource>
7094: <link index="1" from="1" to="2"></link>
7095: <link index="2" from="2" to="3"></link>
7096: </map>
7097: ENDINITMAP
7098: $topurl=&declutter(
1.638 albertel 7099: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 7100: );
7101: }
7102: # ----------------------------------------------------------- Write preferences
1.84 www 7103: &writecoursepref($udom.'_'.$uname,
1.1056 raeburn 7104: ('description' => $description,
7105: 'url' => $topurl,
7106: 'internal.creator' => $env{'user.name'}.':'.
7107: $env{'user.domain'},
7108: 'internal.created' => $now,
7109: 'internal.creationcontext' => $context)
7110: );
1.84 www 7111: return '/'.$udom.'/'.$uname;
7112: }
7113:
1.1011 raeburn 7114: # ------------------------------------------------------------------- Create ID
7115: sub generate_coursenum {
1.1038 raeburn 7116: my ($udom,$crstype) = @_;
1.1011 raeburn 7117: my $domdesc = &domain($udom);
7118: return 'error: invalid domain' if ($domdesc eq '');
1.1038 raeburn 7119: my $first;
7120: if ($crstype eq 'Community') {
7121: $first = '0';
7122: } else {
7123: $first = int(1+rand(9));
7124: }
7125: my $uname=$first.
1.1011 raeburn 7126: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
7127: substr($$.time,0,5).unpack("H8",pack("I32",time)).
7128: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
7129: # ----------------------------------------------- Make sure that does not exist
7130: my $uhome=&homeserver($uname,$udom,'true');
7131: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1.1038 raeburn 7132: if ($crstype eq 'Community') {
7133: $first = '0';
7134: } else {
7135: $first = int(1+rand(9));
7136: }
7137: $uname=$first.
1.1011 raeburn 7138: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
7139: substr($$.time,0,5).unpack("H8",pack("I32",time)).
7140: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
7141: $uhome=&homeserver($uname,$udom,'true');
7142: unless (($uhome eq '') || ($uhome eq 'no_host')) {
7143: return 'error: unable to generate unique course-ID';
7144: }
7145: }
7146: return $uname;
7147: }
7148:
1.813 albertel 7149: sub is_course {
7150: my ($cdom,$cnum) = @_;
7151: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 7152: undef,'.');
1.813 albertel 7153: if (exists($courses{$cdom.'_'.$cnum})) {
7154: return 1;
7155: }
7156: return 0;
7157: }
7158:
1.1015 raeburn 7159: sub store_userdata {
7160: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 7161: my $result;
1.1016 raeburn 7162: if ($datakey ne '') {
1.1013 raeburn 7163: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 7164: if ($udom eq '' || $uname eq '') {
7165: $udom = $env{'user.domain'};
7166: $uname = $env{'user.name'};
7167: }
7168: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 7169: if (($uhome eq '') || ($uhome eq 'no_host')) {
7170: $result = 'error: no_host';
7171: } else {
7172: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
7173: $storehash->{'host'} = $perlvar{'lonHostID'};
7174:
7175: my $namevalue='';
7176: foreach my $key (keys(%{$storehash})) {
7177: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
7178: }
7179: $namevalue=~s/\&$//;
7180: $result = &reply("store:$env{'user.domain'}:$env{'user.name'}:".
1.1015 raeburn 7181: "$namespace:$datakey:$namevalue",$uhome);
1.1013 raeburn 7182: }
7183: } else {
7184: $result = 'error: data to store was not a hash reference';
7185: }
7186: } else {
7187: $result= 'error: invalid requestkey';
7188: }
7189: return $result;
7190: }
7191:
1.21 www 7192: # ---------------------------------------------------------- Assign Custom Role
7193:
7194: sub assigncustomrole {
1.957 raeburn 7195: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7196: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 7197: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 7198: }
7199:
7200: # ----------------------------------------------------------------- Revoke Role
7201:
7202: sub revokerole {
1.957 raeburn 7203: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7204: my $now=time;
1.965 raeburn 7205: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 7206: }
7207:
7208: # ---------------------------------------------------------- Revoke Custom Role
7209:
7210: sub revokecustomrole {
1.957 raeburn 7211: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 7212: my $now=time;
1.357 www 7213: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 7214: $deleteflag,$selfenroll,$context);
1.17 www 7215: }
7216:
1.533 banghart 7217: # ------------------------------------------------------------ Disk usage
1.535 albertel 7218: sub diskusage {
1.955 raeburn 7219: my ($udom,$uname,$directorypath,$getpropath)=@_;
7220: $directorypath =~ s/\/$//;
7221: my $listing=&reply('du2:'.&escape($directorypath).':'
7222: .&escape($getpropath).':'.&escape($uname).':'
7223: .&escape($udom),homeserver($uname,$udom));
7224: if ($listing eq 'unknown_cmd') {
7225: if ($getpropath) {
7226: $directorypath = &propath($udom,$uname).'/'.$directorypath;
7227: }
7228: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
7229: }
1.514 albertel 7230: return $listing;
1.512 banghart 7231: }
7232:
1.566 banghart 7233: sub is_locked {
7234: my ($file_name, $domain, $user) = @_;
7235: my @check;
7236: my $is_locked;
7237: push @check, $file_name;
1.613 albertel 7238: my %locked = &get('file_permissions',\@check,
1.620 albertel 7239: $env{'user.domain'},$env{'user.name'});
1.615 albertel 7240: my ($tmp)=keys(%locked);
7241: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 7242:
1.566 banghart 7243: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 7244: $is_locked = 'false';
7245: foreach my $entry (@{$locked{$file_name}}) {
7246: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 7247: $is_locked = 'true';
7248: last;
1.745 raeburn 7249: }
7250: }
1.566 banghart 7251: } else {
7252: $is_locked = 'false';
7253: }
7254: }
7255:
1.759 albertel 7256: sub declutter_portfile {
7257: my ($file) = @_;
1.833 albertel 7258: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 7259: return $file;
7260: }
7261:
1.559 banghart 7262: # ------------------------------------------------------------- Mark as Read Only
7263:
7264: sub mark_as_readonly {
7265: my ($domain,$user,$files,$what) = @_;
1.613 albertel 7266: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 7267: my ($tmp)=keys(%current_permissions);
7268: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 7269: foreach my $file (@{$files}) {
1.759 albertel 7270: $file = &declutter_portfile($file);
1.561 banghart 7271: push(@{$current_permissions{$file}},$what);
1.559 banghart 7272: }
1.613 albertel 7273: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7274: return;
7275: }
7276:
1.572 banghart 7277: # ------------------------------------------------------------Save Selected Files
7278:
7279: sub save_selected_files {
7280: my ($user, $path, @files) = @_;
7281: my $filename = $user."savedfiles";
1.573 banghart 7282: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 7283: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 7284: foreach my $file (@files) {
1.620 albertel 7285: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 7286: }
7287: foreach my $file (@other_files) {
1.574 banghart 7288: print (OUT $file."\n");
1.572 banghart 7289: }
1.574 banghart 7290: close (OUT);
1.572 banghart 7291: return 'ok';
7292: }
7293:
1.574 banghart 7294: sub clear_selected_files {
7295: my ($user) = @_;
7296: my $filename = $user."savedfiles";
7297: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
7298: print (OUT undef);
7299: close (OUT);
7300: return ("ok");
7301: }
7302:
1.572 banghart 7303: sub files_in_path {
7304: my ($user, $path) = @_;
7305: my $filename = $user."savedfiles";
7306: my %return_files;
1.574 banghart 7307: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 7308: while (my $line_in = <IN>) {
1.574 banghart 7309: chomp ($line_in);
7310: my @paths_and_file = split (m!/!, $line_in);
7311: my $file_part = pop (@paths_and_file);
7312: my $path_part = join ('/', @paths_and_file);
1.573 banghart 7313: $path_part.='/';
7314: my $path_and_file = $path_part.$file_part;
7315: if ($path_part eq $path) {
7316: $return_files{$file_part}= 'selected';
7317: }
7318: }
1.574 banghart 7319: close (IN);
7320: return (\%return_files);
1.572 banghart 7321: }
7322:
7323: # called in portfolio select mode, to show files selected NOT in current directory
7324: sub files_not_in_path {
7325: my ($user, $path) = @_;
7326: my $filename = $user."savedfiles";
7327: my @return_files;
7328: my $path_part;
1.800 albertel 7329: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
7330: while (my $line = <IN>) {
1.572 banghart 7331: #ok, I know it's clunky, but I want it to work
1.800 albertel 7332: my @paths_and_file = split(m|/|, $line);
7333: my $file_part = pop(@paths_and_file);
7334: chomp($file_part);
7335: my $path_part = join('/', @paths_and_file);
1.572 banghart 7336: $path_part .= '/';
7337: my $path_and_file = $path_part.$file_part;
7338: if ($path_part ne $path) {
1.800 albertel 7339: push(@return_files, ($path_and_file));
1.572 banghart 7340: }
7341: }
1.800 albertel 7342: close(OUT);
1.574 banghart 7343: return (@return_files);
1.572 banghart 7344: }
7345:
1.745 raeburn 7346: #----------------------------------------------Get portfolio file permissions
1.629 banghart 7347:
1.745 raeburn 7348: sub get_portfile_permissions {
7349: my ($domain,$user) = @_;
1.613 albertel 7350: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 7351: my ($tmp)=keys(%current_permissions);
7352: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7353: return \%current_permissions;
7354: }
7355:
7356: #---------------------------------------------Get portfolio file access controls
7357:
1.749 raeburn 7358: sub get_access_controls {
1.745 raeburn 7359: my ($current_permissions,$group,$file) = @_;
1.769 albertel 7360: my %access;
7361: my $real_file = $file;
7362: $file =~ s/\.meta$//;
1.745 raeburn 7363: if (defined($file)) {
1.749 raeburn 7364: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
7365: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 7366: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 7367: }
7368: }
1.745 raeburn 7369: } else {
1.749 raeburn 7370: foreach my $key (keys(%{$current_permissions})) {
7371: if ($key =~ /\0accesscontrol$/) {
7372: if (defined($group)) {
7373: if ($key !~ m-^\Q$group\E/-) {
7374: next;
7375: }
7376: }
7377: my ($fullpath) = split(/\0/,$key);
7378: if (ref($$current_permissions{$key}) eq 'HASH') {
7379: foreach my $control (keys(%{$$current_permissions{$key}})) {
7380: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
7381: }
7382: }
7383: }
7384: }
7385: }
7386: return %access;
7387: }
7388:
7389: sub modify_access_controls {
7390: my ($file_name,$changes,$domain,$user)=@_;
7391: my ($outcome,$deloutcome);
7392: my %store_permissions;
7393: my %new_values;
7394: my %new_control;
7395: my %translation;
7396: my @deletions = ();
7397: my $now = time;
7398: if (exists($$changes{'activate'})) {
7399: if (ref($$changes{'activate'}) eq 'HASH') {
7400: my @newitems = sort(keys(%{$$changes{'activate'}}));
7401: my $numnew = scalar(@newitems);
7402: for (my $i=0; $i<$numnew; $i++) {
7403: my $newkey = $newitems[$i];
7404: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 7405: if ($newkey =~ /^\d+:/) {
7406: $newkey =~ s/^(\d+)/$newid/;
7407: $translation{$1} = $newid;
7408: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
7409: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
7410: $translation{$1} = $newid;
7411: }
1.749 raeburn 7412: $new_values{$file_name."\0".$newkey} =
7413: $$changes{'activate'}{$newitems[$i]};
7414: $new_control{$newkey} = $now;
7415: }
7416: }
7417: }
7418: my %todelete;
7419: my %changed_items;
7420: foreach my $action ('delete','update') {
7421: if (exists($$changes{$action})) {
7422: if (ref($$changes{$action}) eq 'HASH') {
7423: foreach my $key (keys(%{$$changes{$action}})) {
7424: my ($itemnum) = ($key =~ /^([^:]+):/);
7425: if ($action eq 'delete') {
7426: $todelete{$itemnum} = 1;
7427: } else {
7428: $changed_items{$itemnum} = $key;
7429: }
7430: }
1.745 raeburn 7431: }
7432: }
1.749 raeburn 7433: }
7434: # get lock on access controls for file.
7435: my $lockhash = {
7436: $file_name."\0".'locked_access_records' => $env{'user.name'}.
7437: ':'.$env{'user.domain'},
7438: };
7439: my $tries = 0;
7440: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
7441:
7442: while (($gotlock ne 'ok') && $tries <3) {
7443: $tries ++;
7444: sleep 1;
7445: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
7446: }
7447: if ($gotlock eq 'ok') {
7448: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
7449: my ($tmp)=keys(%curr_permissions);
7450: if ($tmp=~/^error:/) { undef(%curr_permissions); }
7451: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
7452: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
7453: if (ref($curr_controls) eq 'HASH') {
7454: foreach my $control_item (keys(%{$curr_controls})) {
7455: my ($itemnum) = ($control_item =~ /^([^:]+):/);
7456: if (defined($todelete{$itemnum})) {
7457: push(@deletions,$file_name."\0".$control_item);
7458: } else {
7459: if (defined($changed_items{$itemnum})) {
7460: $new_control{$changed_items{$itemnum}} = $now;
7461: push(@deletions,$file_name."\0".$control_item);
7462: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
7463: } else {
7464: $new_control{$control_item} = $$curr_controls{$control_item};
7465: }
7466: }
1.745 raeburn 7467: }
7468: }
7469: }
1.970 raeburn 7470: my ($group);
7471: if (&is_course($domain,$user)) {
7472: ($group,my $file) = split(/\//,$file_name,2);
7473: }
1.749 raeburn 7474: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
7475: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
7476: $outcome = &put('file_permissions',\%new_values,$domain,$user);
7477: # remove lock
7478: my @del_lock = ($file_name."\0".'locked_access_records');
7479: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 7480: my $sqlresult =
1.970 raeburn 7481: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 7482: $group);
1.749 raeburn 7483: } else {
7484: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 7485: }
1.749 raeburn 7486: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 7487: }
7488:
1.827 raeburn 7489: sub make_public_indefinitely {
7490: my ($requrl) = @_;
7491: my $now = time;
7492: my $action = 'activate';
7493: my $aclnum = 0;
7494: if (&is_portfolio_url($requrl)) {
7495: my (undef,$udom,$unum,$file_name,$group) =
7496: &parse_portfolio_url($requrl);
7497: my $current_perms = &get_portfile_permissions($udom,$unum);
7498: my %access_controls = &get_access_controls($current_perms,
7499: $group,$file_name);
7500: foreach my $key (keys(%{$access_controls{$file_name}})) {
7501: my ($num,$scope,$end,$start) =
7502: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
7503: if ($scope eq 'public') {
7504: if ($start <= $now && $end == 0) {
7505: $action = 'none';
7506: } else {
7507: $action = 'update';
7508: $aclnum = $num;
7509: }
7510: last;
7511: }
7512: }
7513: if ($action eq 'none') {
7514: return 'ok';
7515: } else {
7516: my %changes;
7517: my $newend = 0;
7518: my $newstart = $now;
7519: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
7520: $changes{$action}{$newkey} = {
7521: type => 'public',
7522: time => {
7523: start => $newstart,
7524: end => $newend,
7525: },
7526: };
7527: my ($outcome,$deloutcome,$new_values,$translation) =
7528: &modify_access_controls($file_name,\%changes,$udom,$unum);
7529: return $outcome;
7530: }
7531: } else {
7532: return 'invalid';
7533: }
7534: }
7535:
1.745 raeburn 7536: #------------------------------------------------------Get Marked as Read Only
7537:
7538: sub get_marked_as_readonly {
7539: my ($domain,$user,$what,$group) = @_;
7540: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 7541: my @readonly_files;
1.629 banghart 7542: my $cmp1=$what;
7543: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 7544: while (my ($file_name,$value) = each(%{$current_permissions})) {
7545: if (defined($group)) {
7546: if ($file_name !~ m-^\Q$group\E/-) {
7547: next;
7548: }
7549: }
1.561 banghart 7550: if (ref($value) eq "ARRAY"){
7551: foreach my $stored_what (@{$value}) {
1.629 banghart 7552: my $cmp2=$stored_what;
1.759 albertel 7553: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 7554: $cmp2=join('',@{$stored_what});
1.745 raeburn 7555: }
1.629 banghart 7556: if ($cmp1 eq $cmp2) {
1.561 banghart 7557: push(@readonly_files, $file_name);
1.745 raeburn 7558: last;
1.563 banghart 7559: } elsif (!defined($what)) {
7560: push(@readonly_files, $file_name);
1.745 raeburn 7561: last;
1.561 banghart 7562: }
7563: }
1.745 raeburn 7564: }
1.561 banghart 7565: }
7566: return @readonly_files;
7567: }
1.577 banghart 7568: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 7569:
1.577 banghart 7570: sub get_marked_as_readonly_hash {
1.745 raeburn 7571: my ($current_permissions,$group,$what) = @_;
1.577 banghart 7572: my %readonly_files;
1.745 raeburn 7573: while (my ($file_name,$value) = each(%{$current_permissions})) {
7574: if (defined($group)) {
7575: if ($file_name !~ m-^\Q$group\E/-) {
7576: next;
7577: }
7578: }
1.577 banghart 7579: if (ref($value) eq "ARRAY"){
7580: foreach my $stored_what (@{$value}) {
1.745 raeburn 7581: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 7582: foreach my $lock_descriptor(@{$stored_what}) {
7583: if ($lock_descriptor eq 'graded') {
7584: $readonly_files{$file_name} = 'graded';
7585: } elsif ($lock_descriptor eq 'handback') {
7586: $readonly_files{$file_name} = 'handback';
7587: } else {
7588: if (!exists($readonly_files{$file_name})) {
7589: $readonly_files{$file_name} = 'locked';
7590: }
7591: }
1.745 raeburn 7592: }
1.750 banghart 7593: }
1.577 banghart 7594: }
7595: }
7596: }
7597: return %readonly_files;
7598: }
1.559 banghart 7599: # ------------------------------------------------------------ Unmark as Read Only
7600:
7601: sub unmark_as_readonly {
1.629 banghart 7602: # unmarks $file_name (if $file_name is defined), or all files locked by $what
7603: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 7604: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 7605: $file_name = &declutter_portfile($file_name);
1.634 albertel 7606: my $symb_crs = $what;
7607: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 7608: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 7609: my ($tmp)=keys(%current_permissions);
7610: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7611: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 7612: foreach my $file (@readonly_files) {
1.759 albertel 7613: my $clean_file = &declutter_portfile($file);
7614: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 7615: my $current_locks = $current_permissions{$file};
1.563 banghart 7616: my @new_locks;
7617: my @del_keys;
7618: if (ref($current_locks) eq "ARRAY"){
7619: foreach my $locker (@{$current_locks}) {
1.632 albertel 7620: my $compare=$locker;
1.749 raeburn 7621: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 7622: $compare=join('',@{$locker});
1.746 raeburn 7623: if ($compare ne $symb_crs) {
7624: push(@new_locks, $locker);
7625: }
1.563 banghart 7626: }
7627: }
1.650 albertel 7628: if (scalar(@new_locks) > 0) {
1.563 banghart 7629: $current_permissions{$file} = \@new_locks;
7630: } else {
7631: push(@del_keys, $file);
1.613 albertel 7632: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 7633: delete($current_permissions{$file});
1.563 banghart 7634: }
7635: }
1.561 banghart 7636: }
1.613 albertel 7637: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7638: return;
7639: }
1.512 banghart 7640:
1.17 www 7641: # ------------------------------------------------------------ Directory lister
7642:
7643: sub dirlist {
1.955 raeburn 7644: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 7645: $uri=~s/^\///;
7646: $uri=~s/\/$//;
1.253 stredwic 7647: my ($udom, $uname);
1.955 raeburn 7648: if ($getuserdir) {
1.253 stredwic 7649: $udom = $userdomain;
7650: $uname = $username;
1.955 raeburn 7651: } else {
7652: (undef,$udom,$uname)=split(/\//,$uri);
7653: if(defined($userdomain)) {
7654: $udom = $userdomain;
7655: }
7656: if(defined($username)) {
7657: $uname = $username;
7658: }
1.253 stredwic 7659: }
1.955 raeburn 7660: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 7661:
1.955 raeburn 7662: $dirRoot = $perlvar{'lonDocRoot'};
7663: if (defined($getpropath)) {
7664: $dirRoot = &propath($udom,$uname);
1.253 stredwic 7665: $dirRoot =~ s/\/$//;
1.955 raeburn 7666: } elsif (defined($getuserdir)) {
7667: my $subdir=$uname.'__';
7668: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
7669: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
7670: ."/$udom/$subdir/$uname";
7671: } elsif (defined($alternateRoot)) {
7672: $dirRoot = $alternateRoot;
1.751 banghart 7673: }
1.253 stredwic 7674:
7675: if($udom) {
7676: if($uname) {
1.955 raeburn 7677: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 7678: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 7679: .':'.&escape($uname).':'.&escape($udom),
7680: &homeserver($uname,$udom));
7681: if ($listing eq 'unknown_cmd') {
7682: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
7683: &homeserver($uname,$udom));
7684: } else {
7685: @listing_results = map { &unescape($_); } split(/:/,$listing);
7686: }
1.605 matthew 7687: if ($listing eq 'unknown_cmd') {
1.800 albertel 7688: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
7689: &homeserver($uname,$udom));
1.605 matthew 7690: @listing_results = split(/:/,$listing);
7691: } else {
7692: @listing_results = map { &unescape($_); } split(/:/,$listing);
7693: }
7694: return @listing_results;
1.955 raeburn 7695: } elsif(!$alternateRoot) {
1.800 albertel 7696: my %allusers;
1.841 albertel 7697: my %servers = &get_servers($udom,'library');
1.955 raeburn 7698: foreach my $tryserver (keys(%servers)) {
7699: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
7700: &escape($udom),$tryserver);
7701: if ($listing eq 'unknown_cmd') {
7702: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
7703: $udom, $tryserver);
7704: } else {
7705: @listing_results = map { &unescape($_); } split(/:/,$listing);
7706: }
1.841 albertel 7707: if ($listing eq 'unknown_cmd') {
7708: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
7709: $udom, $tryserver);
7710: @listing_results = split(/:/,$listing);
7711: } else {
7712: @listing_results =
7713: map { &unescape($_); } split(/:/,$listing);
7714: }
7715: if ($listing_results[0] ne 'no_such_dir' &&
7716: $listing_results[0] ne 'empty' &&
7717: $listing_results[0] ne 'con_lost') {
7718: foreach my $line (@listing_results) {
7719: my ($entry) = split(/&/,$line,2);
7720: $allusers{$entry} = 1;
7721: }
7722: }
1.253 stredwic 7723: }
7724: my $alluserstr='';
1.800 albertel 7725: foreach my $user (sort(keys(%allusers))) {
7726: $alluserstr.=$user.'&user:';
1.253 stredwic 7727: }
7728: $alluserstr=~s/:$//;
7729: return split(/:/,$alluserstr);
7730: } else {
1.800 albertel 7731: return ('missing user name');
1.253 stredwic 7732: }
1.955 raeburn 7733: } elsif(!defined($getpropath)) {
1.841 albertel 7734: my @all_domains = sort(&all_domains());
1.955 raeburn 7735: foreach my $domain (@all_domains) {
7736: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
7737: }
7738: return @all_domains;
7739: } else {
1.800 albertel 7740: return ('missing domain');
1.275 stredwic 7741: }
7742: }
7743:
7744: # --------------------------------------------- GetFileTimestamp
7745: # This function utilizes dirlist and returns the date stamp for
7746: # when it was last modified. It will also return an error of -1
7747: # if an error occurs
7748:
7749: sub GetFileTimestamp {
1.955 raeburn 7750: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 7751: $studentDomain = &LONCAPA::clean_domain($studentDomain);
7752: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 7753: my ($fileStat) =
7754: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
7755: undef,$getuserdir);
1.275 stredwic 7756: my @stats = split('&', $fileStat);
7757: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 7758: # @stats contains first the filename, then the stat output
7759: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 7760: } else {
7761: return -1;
1.253 stredwic 7762: }
1.26 www 7763: }
7764:
1.712 albertel 7765: sub stat_file {
7766: my ($uri) = @_;
1.787 albertel 7767: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 7768:
1.955 raeburn 7769: my ($udom,$uname,$file);
1.712 albertel 7770: if ($uri =~ m-^/(uploaded|editupload)/-) {
7771: ($udom,$uname,$file) =
1.811 albertel 7772: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 7773: $file = 'userfiles/'.$file;
7774: }
7775: if ($uri =~ m-^/res/-) {
7776: ($udom,$uname) =
1.807 albertel 7777: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 7778: $file = $uri;
7779: }
7780:
7781: if (!$udom || !$uname || !$file) {
7782: # unable to handle the uri
7783: return ();
7784: }
1.956 raeburn 7785: my $getpropath;
7786: if ($file =~ /^userfiles\//) {
7787: $getpropath = 1;
7788: }
1.955 raeburn 7789: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 7790: my @stats = split('&', $result);
1.721 banghart 7791:
1.712 albertel 7792: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
7793: shift(@stats); #filename is first
7794: return @stats;
7795: }
7796: return ();
7797: }
7798:
1.26 www 7799: # -------------------------------------------------------- Value of a Condition
7800:
1.713 albertel 7801: # gets the value of a specific preevaluated condition
7802: # stored in the string $env{user.state.<cid>}
7803: # or looks up a condition reference in the bighash and if if hasn't
7804: # already been evaluated recurses into docondval to get the value of
7805: # the condition, then memoizing it to
7806: # $env{user.state.<cid>.<condition>}
1.40 www 7807: sub directcondval {
7808: my $number=shift;
1.620 albertel 7809: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 7810: &Apache::lonuserstate::evalstate();
7811: }
1.713 albertel 7812: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
7813: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
7814: } elsif ($number =~ /^_/) {
7815: my $sub_condition;
7816: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
7817: &GDBM_READER(),0640)) {
7818: $sub_condition=$bighash{'conditions'.$number};
7819: untie(%bighash);
7820: }
7821: my $value = &docondval($sub_condition);
1.949 raeburn 7822: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 7823: return $value;
7824: }
1.620 albertel 7825: if ($env{'user.state.'.$env{'request.course.id'}}) {
7826: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 7827: } else {
7828: return 2;
7829: }
7830: }
7831:
1.713 albertel 7832: # get the collection of conditions for this resource
1.26 www 7833: sub condval {
7834: my $condidx=shift;
1.54 www 7835: my $allpathcond='';
1.713 albertel 7836: foreach my $cond (split(/\|/,$condidx)) {
7837: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
7838: $allpathcond.=
7839: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
7840: }
1.191 harris41 7841: }
1.54 www 7842: $allpathcond=~s/\|$//;
1.713 albertel 7843: return &docondval($allpathcond);
7844: }
7845:
7846: #evaluates an expression of conditions
7847: sub docondval {
7848: my ($allpathcond) = @_;
7849: my $result=0;
7850: if ($env{'request.course.id'}
7851: && defined($allpathcond)) {
7852: my $operand='|';
7853: my @stack;
7854: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
7855: if ($chunk eq '(') {
7856: push @stack,($operand,$result);
7857: } elsif ($chunk eq ')') {
7858: my $before=pop @stack;
7859: if (pop @stack eq '&') {
7860: $result=$result>$before?$before:$result;
7861: } else {
7862: $result=$result>$before?$result:$before;
7863: }
7864: } elsif (($chunk eq '&') || ($chunk eq '|')) {
7865: $operand=$chunk;
7866: } else {
7867: my $new=directcondval($chunk);
7868: if ($operand eq '&') {
7869: $result=$result>$new?$new:$result;
7870: } else {
7871: $result=$result>$new?$result:$new;
7872: }
7873: }
7874: }
1.26 www 7875: }
7876: return $result;
1.421 albertel 7877: }
7878:
7879: # ---------------------------------------------------- Devalidate courseresdata
7880:
7881: sub devalidatecourseresdata {
7882: my ($coursenum,$coursedomain)=@_;
7883: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7884: &devalidate_cache_new('courseres',$hashid);
1.28 www 7885: }
7886:
1.763 www 7887:
1.200 www 7888: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 7889: #
7890: # Parameters:
7891: # $coursenum - Number of the course.
7892: # $coursedomain - Domain at which the course was created.
7893: # Returns:
7894: # A hash of the course parameters along (I think) with timestamps
7895: # and version info.
1.877 foxr 7896:
1.624 albertel 7897: sub get_courseresdata {
7898: my ($coursenum,$coursedomain)=@_;
1.200 www 7899: my $coursehom=&homeserver($coursenum,$coursedomain);
7900: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7901: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 7902: my %dumpreply;
1.417 albertel 7903: unless (defined($cached)) {
1.624 albertel 7904: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 7905: $result=\%dumpreply;
1.251 albertel 7906: my ($tmp) = keys(%dumpreply);
7907: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 7908: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 7909: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
7910: return $tmp;
1.416 albertel 7911: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 7912: $result=undef;
1.599 albertel 7913: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 7914: }
7915: }
1.624 albertel 7916: return $result;
7917: }
7918:
1.633 albertel 7919: sub devalidateuserresdata {
7920: my ($uname,$udom)=@_;
7921: my $hashid="$udom:$uname";
7922: &devalidate_cache_new('userres',$hashid);
7923: }
7924:
1.624 albertel 7925: sub get_userresdata {
7926: my ($uname,$udom)=@_;
7927: #most student don\'t have any data set, check if there is some data
7928: if (&EXT_cache_status($udom,$uname)) { return undef; }
7929:
7930: my $hashid="$udom:$uname";
7931: my ($result,$cached)=&is_cached_new('userres',$hashid);
7932: if (!defined($cached)) {
7933: my %resourcedata=&dump('resourcedata',$udom,$uname);
7934: $result=\%resourcedata;
7935: &do_cache_new('userres',$hashid,$result,600);
7936: }
7937: my ($tmp)=keys(%$result);
7938: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
7939: return $result;
7940: }
7941: #error 2 occurs when the .db doesn't exist
7942: if ($tmp!~/error: 2 /) {
1.672 albertel 7943: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 7944: " Trying to get resource data for ".
7945: $uname." at ".$udom.": ".
7946: $tmp."</font>");
7947: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 7948: #&EXT_cache_set($udom,$uname);
7949: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 7950: undef($tmp); # not really an error so don't send it back
1.624 albertel 7951: }
7952: return $tmp;
7953: }
1.879 foxr 7954: #----------------------------------------------- resdata - return resource data
7955: # Purpose:
7956: # Return resource data for either users or for a course.
7957: # Parameters:
7958: # $name - Course/user name.
7959: # $domain - Name of the domain the user/course is registered on.
7960: # $type - Type of thing $name is (must be 'course' or 'user'
7961: # @which - Array of names of resources desired.
7962: # Returns:
7963: # The value of the first reasource in @which that is found in the
7964: # resource hash.
7965: # Exceptional Conditions:
7966: # If the $type passed in is not valid (not the string 'course' or
7967: # 'user', an undefined reference is returned.
7968: # If none of the resources are found, an undef is returned
1.624 albertel 7969: sub resdata {
7970: my ($name,$domain,$type,@which)=@_;
7971: my $result;
7972: if ($type eq 'course') {
7973: $result=&get_courseresdata($name,$domain);
7974: } elsif ($type eq 'user') {
7975: $result=&get_userresdata($name,$domain);
7976: }
7977: if (!ref($result)) { return $result; }
1.251 albertel 7978: foreach my $item (@which) {
1.927 albertel 7979: if (defined($result->{$item->[0]})) {
7980: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 7981: }
1.250 albertel 7982: }
1.291 albertel 7983: return undef;
1.200 www 7984: }
7985:
1.379 matthew 7986: #
7987: # EXT resource caching routines
7988: #
7989:
7990: sub clear_EXT_cache_status {
1.383 albertel 7991: &delenv('cache.EXT.');
1.379 matthew 7992: }
7993:
7994: sub EXT_cache_status {
7995: my ($target_domain,$target_user) = @_;
1.383 albertel 7996: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 7997: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 7998: # We know already the user has no data
7999: return 1;
8000: } else {
8001: return 0;
8002: }
8003: }
8004:
8005: sub EXT_cache_set {
8006: my ($target_domain,$target_user) = @_;
1.383 albertel 8007: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 8008: #&appenv({$cachename => time});
1.379 matthew 8009: }
8010:
1.28 www 8011: # --------------------------------------------------------- Value of a Variable
1.58 www 8012: sub EXT {
1.715 albertel 8013:
1.395 albertel 8014: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 8015: unless ($varname) { return ''; }
1.218 albertel 8016: #get real user name/domain, courseid and symb
8017: my $courseid;
1.359 albertel 8018: my $publicuser;
1.427 www 8019: if ($symbparm) {
8020: $symbparm=&get_symb_from_alias($symbparm);
8021: }
1.218 albertel 8022: if (!($uname && $udom)) {
1.790 albertel 8023: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 8024: if (!$symbparm) { $symbparm=$cursymb; }
8025: } else {
1.620 albertel 8026: $courseid=$env{'request.course.id'};
1.218 albertel 8027: }
1.48 www 8028: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
8029: my $rest;
1.320 albertel 8030: if (defined($therest[0])) {
1.48 www 8031: $rest=join('.',@therest);
8032: } else {
8033: $rest='';
8034: }
1.320 albertel 8035:
1.57 www 8036: my $qualifierrest=$qualifier;
8037: if ($rest) { $qualifierrest.='.'.$rest; }
8038: my $spacequalifierrest=$space;
8039: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 8040: if ($realm eq 'user') {
1.48 www 8041: # --------------------------------------------------------------- user.resource
8042: if ($space eq 'resource') {
1.651 albertel 8043: if ( (defined($Apache::lonhomework::parsing_a_problem)
8044: || defined($Apache::lonhomework::parsing_a_task))
8045: &&
1.744 albertel 8046: ($symbparm eq &symbread()) ) {
8047: # if we are in the middle of processing the resource the
8048: # get the value we are planning on committing
8049: if (defined($Apache::lonhomework::results{$qualifierrest})) {
8050: return $Apache::lonhomework::results{$qualifierrest};
8051: } else {
8052: return $Apache::lonhomework::history{$qualifierrest};
8053: }
1.335 albertel 8054: } else {
1.359 albertel 8055: my %restored;
1.620 albertel 8056: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 8057: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
8058: } else {
8059: %restored=&restore($symbparm,$courseid,$udom,$uname);
8060: }
1.335 albertel 8061: return $restored{$qualifierrest};
8062: }
1.48 www 8063: # ----------------------------------------------------------------- user.access
8064: } elsif ($space eq 'access') {
1.218 albertel 8065: # FIXME - not supporting calls for a specific user
1.48 www 8066: return &allowed($qualifier,$rest);
8067: # ------------------------------------------ user.preferences, user.environment
8068: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 8069: if (($uname eq $env{'user.name'}) &&
8070: ($udom eq $env{'user.domain'})) {
8071: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 8072: } else {
1.359 albertel 8073: my %returnhash;
8074: if (!$publicuser) {
8075: %returnhash=&userenvironment($udom,$uname,
8076: $qualifierrest);
8077: }
1.218 albertel 8078: return $returnhash{$qualifierrest};
8079: }
1.48 www 8080: # ----------------------------------------------------------------- user.course
8081: } elsif ($space eq 'course') {
1.218 albertel 8082: # FIXME - not supporting calls for a specific user
1.620 albertel 8083: return $env{join('.',('request.course',$qualifier))};
1.48 www 8084: # ------------------------------------------------------------------- user.role
8085: } elsif ($space eq 'role') {
1.218 albertel 8086: # FIXME - not supporting calls for a specific user
1.620 albertel 8087: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 8088: if ($qualifier eq 'value') {
8089: return $role;
8090: } elsif ($qualifier eq 'extent') {
8091: return $where;
8092: }
8093: # ----------------------------------------------------------------- user.domain
8094: } elsif ($space eq 'domain') {
1.218 albertel 8095: return $udom;
1.48 www 8096: # ------------------------------------------------------------------- user.name
8097: } elsif ($space eq 'name') {
1.218 albertel 8098: return $uname;
1.48 www 8099: # ---------------------------------------------------- Any other user namespace
1.29 www 8100: } else {
1.359 albertel 8101: my %reply;
8102: if (!$publicuser) {
8103: %reply=&get($space,[$qualifierrest],$udom,$uname);
8104: }
8105: return $reply{$qualifierrest};
1.48 www 8106: }
1.236 www 8107: } elsif ($realm eq 'query') {
8108: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 8109: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
8110: [$spacequalifierrest]);
1.620 albertel 8111: return $env{'form.'.$spacequalifierrest};
1.236 www 8112: } elsif ($realm eq 'request') {
1.48 www 8113: # ------------------------------------------------------------- request.browser
8114: if ($space eq 'browser') {
1.430 www 8115: if ($qualifier eq 'textremote') {
1.676 albertel 8116: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 8117: return 1;
8118: } else {
8119: return 0;
8120: }
8121: } else {
1.620 albertel 8122: return $env{'browser.'.$qualifier};
1.430 www 8123: }
1.57 www 8124: # ------------------------------------------------------------ request.filename
8125: } else {
1.620 albertel 8126: return $env{'request.'.$spacequalifierrest};
1.29 www 8127: }
1.28 www 8128: } elsif ($realm eq 'course') {
1.48 www 8129: # ---------------------------------------------------------- course.description
1.620 albertel 8130: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 8131: } elsif ($realm eq 'resource') {
1.165 www 8132:
1.620 albertel 8133: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 8134: if (!$symbparm) { $symbparm=&symbread(); }
8135: }
1.693 albertel 8136:
8137: if ($space eq 'title') {
8138: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
8139: return &gettitle($symbparm);
8140: }
8141:
8142: if ($space eq 'map') {
8143: my ($map) = &decode_symb($symbparm);
8144: return &symbread($map);
8145: }
1.905 albertel 8146: if ($space eq 'filename') {
8147: if ($symbparm) {
8148: return &clutter((&decode_symb($symbparm))[2]);
8149: }
8150: return &hreflocation('',$env{'request.filename'});
8151: }
1.693 albertel 8152:
8153: my ($section, $group, @groups);
1.593 albertel 8154: my ($courselevelm,$courselevel);
1.539 albertel 8155: if ($symbparm && defined($courseid) &&
1.620 albertel 8156: $courseid eq $env{'request.course.id'}) {
1.165 www 8157:
1.218 albertel 8158: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 8159:
1.60 www 8160: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 8161: my $symbp=$symbparm;
1.735 albertel 8162: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 8163:
8164: my $symbparm=$symbp.'.'.$spacequalifierrest;
8165: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
8166:
1.620 albertel 8167: if (($env{'user.name'} eq $uname) &&
8168: ($env{'user.domain'} eq $udom)) {
8169: $section=$env{'request.course.sec'};
1.733 raeburn 8170: @groups = split(/:/,$env{'request.course.groups'});
8171: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 8172: } else {
1.539 albertel 8173: if (! defined($usection)) {
1.551 albertel 8174: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 8175: } else {
8176: $section = $usection;
8177: }
1.733 raeburn 8178: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 8179: }
8180:
8181: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
8182: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
8183: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
8184:
1.593 albertel 8185: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 8186: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 8187: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 8188:
1.60 www 8189: # ----------------------------------------------------------- first, check user
1.624 albertel 8190:
8191: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 8192: ([$courselevelr,'resource'],
8193: [$courselevelm,'map' ],
8194: [$courselevel, 'course' ]));
1.931 albertel 8195: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 8196:
1.594 albertel 8197: # ------------------------------------------------ second, check some of course
1.684 raeburn 8198: my $coursereply;
1.691 raeburn 8199: if (@groups > 0) {
8200: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
8201: $mapparm,$spacequalifierrest);
1.927 albertel 8202: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 8203: }
1.96 www 8204:
1.684 raeburn 8205: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 8206: $env{'course.'.$courseid.'.domain'},
8207: 'course',
8208: ([$seclevelr, 'resource'],
8209: [$seclevelm, 'map' ],
8210: [$seclevel, 'course' ],
8211: [$courselevelr,'resource']));
8212: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 8213:
1.60 www 8214: # ------------------------------------------------------ third, check map parms
1.218 albertel 8215: my %parmhash=();
8216: my $thisparm='';
8217: if (tie(%parmhash,'GDBM_File',
1.620 albertel 8218: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 8219: &GDBM_READER(),0640)) {
1.218 albertel 8220: $thisparm=$parmhash{$symbparm};
8221: untie(%parmhash);
8222: }
1.927 albertel 8223: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 8224: }
1.594 albertel 8225: # ------------------------------------------ fourth, look in resource metadata
1.71 www 8226:
1.218 albertel 8227: $spacequalifierrest=~s/\./\_/;
1.282 albertel 8228: my $filename;
8229: if (!$symbparm) { $symbparm=&symbread(); }
8230: if ($symbparm) {
1.409 www 8231: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 8232: } else {
1.620 albertel 8233: $filename=$env{'request.filename'};
1.282 albertel 8234: }
8235: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 8236: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 8237: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 8238: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 8239:
1.927 albertel 8240: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 8241: if ($symbparm && defined($courseid) &&
1.620 albertel 8242: $courseid eq $env{'request.course.id'}) {
1.624 albertel 8243: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
8244: $env{'course.'.$courseid.'.domain'},
8245: 'course',
1.927 albertel 8246: ([$courselevelm,'map' ],
8247: [$courselevel, 'course']));
8248: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 8249: }
1.145 www 8250: # ------------------------------------------------------------------ Cascade up
1.218 albertel 8251: unless ($space eq '0') {
1.336 albertel 8252: my @parts=split(/_/,$space);
8253: my $id=pop(@parts);
8254: my $part=join('_',@parts);
8255: if ($part eq '') { $part='0'; }
1.927 albertel 8256: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 8257: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 8258: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 8259: }
1.395 albertel 8260: if ($recurse) { return undef; }
8261: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 8262: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 8263: # ---------------------------------------------------- Any other user namespace
8264: } elsif ($realm eq 'environment') {
8265: # ----------------------------------------------------------------- environment
1.620 albertel 8266: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
8267: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 8268: } else {
1.770 albertel 8269: if ($uname eq 'anonymous' && $udom eq '') {
8270: return '';
8271: }
1.219 albertel 8272: my %returnhash=&userenvironment($udom,$uname,
8273: $spacequalifierrest);
8274: return $returnhash{$spacequalifierrest};
8275: }
1.28 www 8276: } elsif ($realm eq 'system') {
1.48 www 8277: # ----------------------------------------------------------------- system.time
8278: if ($space eq 'time') {
8279: return time;
8280: }
1.696 albertel 8281: } elsif ($realm eq 'server') {
8282: # ----------------------------------------------------------------- system.time
8283: if ($space eq 'name') {
8284: return $ENV{'SERVER_NAME'};
8285: }
1.28 www 8286: }
1.48 www 8287: return '';
1.61 www 8288: }
8289:
1.927 albertel 8290: sub get_reply {
8291: my ($reply_value) = @_;
1.940 raeburn 8292: if (ref($reply_value) eq 'ARRAY') {
8293: if (wantarray) {
8294: return @$reply_value;
8295: }
8296: return $reply_value->[0];
8297: } else {
8298: return $reply_value;
1.927 albertel 8299: }
8300: }
8301:
1.691 raeburn 8302: sub check_group_parms {
8303: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
8304: my @groupitems = ();
8305: my $resultitem;
1.927 albertel 8306: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 8307: foreach my $group (@{$groups}) {
8308: foreach my $level (@levels) {
1.927 albertel 8309: my $item = $courseid.'.['.$group.'].'.$level->[0];
8310: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 8311: }
8312: }
8313: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
8314: $env{'course.'.$courseid.'.domain'},
8315: 'course',@groupitems);
8316: return $coursereply;
8317: }
8318:
8319: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 8320: my ($courseid,@groups) = @_;
8321: @groups = sort(@groups);
1.691 raeburn 8322: return @groups;
8323: }
8324:
1.395 albertel 8325: sub packages_tab_default {
8326: my ($uri,$varname)=@_;
8327: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 8328:
8329: my (@extension,@specifics,$do_default);
8330: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 8331: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 8332: if ($pack_type eq 'default') {
8333: $do_default=1;
8334: } elsif ($pack_type eq 'extension') {
8335: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 8336: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 8337: # only look at packages defaults for packages that this id is
1.738 albertel 8338: push(@specifics,[$package,$pack_type,$pack_part]);
8339: }
8340: }
8341: # first look for a package that matches the requested part id
8342: foreach my $package (@specifics) {
8343: my (undef,$pack_type,$pack_part)=@{$package};
8344: next if ($pack_part ne $part);
8345: if (defined($packagetab{"$pack_type&$name&default"})) {
8346: return $packagetab{"$pack_type&$name&default"};
8347: }
8348: }
8349: # look for any possible matching non extension_ package
8350: foreach my $package (@specifics) {
8351: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 8352: if (defined($packagetab{"$pack_type&$name&default"})) {
8353: return $packagetab{"$pack_type&$name&default"};
8354: }
1.585 albertel 8355: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 8356: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
8357: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 8358: }
8359: }
1.738 albertel 8360: # look for any posible extension_ match
8361: foreach my $package (@extension) {
8362: my ($package,$pack_type)=@{$package};
8363: if (defined($packagetab{"$pack_type&$name&default"})) {
8364: return $packagetab{"$pack_type&$name&default"};
8365: }
8366: if (defined($packagetab{$package."&$name&default"})) {
8367: return $packagetab{$package."&$name&default"};
8368: }
8369: }
8370: # look for a global default setting
8371: if ($do_default && defined($packagetab{"default&$name&default"})) {
8372: return $packagetab{"default&$name&default"};
8373: }
1.395 albertel 8374: return undef;
8375: }
8376:
1.334 albertel 8377: sub add_prefix_and_part {
8378: my ($prefix,$part)=@_;
8379: my $keyroot;
8380: if (defined($prefix) && $prefix !~ /^__/) {
8381: # prefix that has a part already
8382: $keyroot=$prefix;
8383: } elsif (defined($prefix)) {
8384: # prefix that is missing a part
8385: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
8386: } else {
8387: # no prefix at all
8388: if (defined($part)) { $keyroot='_'.$part; }
8389: }
8390: return $keyroot;
8391: }
8392:
1.71 www 8393: # ---------------------------------------------------------------- Get metadata
8394:
1.599 albertel 8395: my %metaentry;
1.1070 www 8396: my %importedpartids;
1.71 www 8397: sub metadata {
1.176 www 8398: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 8399: $uri=&declutter($uri);
1.288 albertel 8400: # if it is a non metadata possible uri return quickly
1.529 albertel 8401: if (($uri eq '') ||
8402: (($uri =~ m|^/*adm/|) &&
1.698 albertel 8403: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.924 albertel 8404: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) ) {
8405: return undef;
8406: }
8407: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
8408: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 8409: return undef;
1.288 albertel 8410: }
1.73 www 8411: my $filename=$uri;
8412: $uri=~s/\.meta$//;
1.172 www 8413: #
8414: # Is the metadata already cached?
1.177 www 8415: # Look at timestamp of caching
1.172 www 8416: # Everything is cached by the main uri, libraries are never directly cached
8417: #
1.428 albertel 8418: if (!defined($liburi)) {
1.599 albertel 8419: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 8420: if (defined($cached)) { return $result->{':'.$what}; }
8421: }
8422: {
1.1069 www 8423: # Imported parts would go here
1.1070 www 8424: my %importedids=();
8425: my @origfileimportpartids=();
1.1069 www 8426: my $importedparts=0;
1.172 www 8427: #
8428: # Is this a recursive call for a library?
8429: #
1.599 albertel 8430: # if (! exists($metacache{$uri})) {
8431: # $metacache{$uri}={};
8432: # }
1.924 albertel 8433: my $cachetime = 60*60;
1.171 www 8434: if ($liburi) {
8435: $liburi=&declutter($liburi);
8436: $filename=$liburi;
1.401 bowersj2 8437: } else {
1.599 albertel 8438: &devalidate_cache_new('meta',$uri);
8439: undef(%metaentry);
1.401 bowersj2 8440: }
1.140 www 8441: my %metathesekeys=();
1.73 www 8442: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 8443: my $metastring;
1.924 albertel 8444: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 8445: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 8446: $metastring =
1.929 albertel 8447: &Apache::lonnet::ssi_body($which,
1.924 albertel 8448: ('grade_target' => 'meta'));
8449: $cachetime = 1; # only want this cached in the child not long term
8450: } elsif ($uri !~ m -^(editupload)/-) {
1.543 albertel 8451: my $file=&filelocation('',&clutter($filename));
1.599 albertel 8452: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 8453: $metastring=&getfile($file);
1.489 albertel 8454: }
1.208 albertel 8455: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 8456: my $token;
1.140 www 8457: undef %metathesekeys;
1.71 www 8458: while ($token=$parser->get_token) {
1.339 albertel 8459: if ($token->[0] eq 'S') {
8460: if (defined($token->[2]->{'package'})) {
1.172 www 8461: #
8462: # This is a package - get package info
8463: #
1.339 albertel 8464: my $package=$token->[2]->{'package'};
8465: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8466: if (defined($token->[2]->{'id'})) {
8467: $keyroot.='_'.$token->[2]->{'id'};
8468: }
1.599 albertel 8469: if ($metaentry{':packages'}) {
8470: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 8471: } else {
1.599 albertel 8472: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 8473: }
1.736 albertel 8474: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 8475: my $part=$keyroot;
8476: $part=~s/^\_//;
1.736 albertel 8477: if ($pack_entry=~/^\Q$package\E\&/ ||
8478: $pack_entry=~/^\Q$package\E_0\&/) {
8479: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 8480: # ignore package.tab specified default values
8481: # here &package_tab_default() will fetch those
8482: if ($subp eq 'default') { next; }
1.736 albertel 8483: my $value=$packagetab{$pack_entry};
1.432 albertel 8484: my $unikey;
8485: if ($pack =~ /_0$/) {
8486: $unikey='parameter_0_'.$name;
8487: $part=0;
8488: } else {
8489: $unikey='parameter'.$keyroot.'_'.$name;
8490: }
1.339 albertel 8491: if ($subp eq 'display') {
8492: $value.=' [Part: '.$part.']';
8493: }
1.599 albertel 8494: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 8495: $metathesekeys{$unikey}=1;
1.599 albertel 8496: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8497: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 8498: }
1.599 albertel 8499: if (defined($metaentry{':'.$unikey.'.default'})) {
8500: $metaentry{':'.$unikey}=
8501: $metaentry{':'.$unikey.'.default'};
1.356 albertel 8502: }
1.339 albertel 8503: }
8504: }
8505: } else {
1.172 www 8506: #
8507: # This is not a package - some other kind of start tag
1.339 albertel 8508: #
8509: my $entry=$token->[1];
1.1068 www 8510: my $unikey='';
1.175 www 8511:
1.339 albertel 8512: if ($entry eq 'import') {
1.175 www 8513: #
8514: # Importing a library here
1.339 albertel 8515: #
1.1067 www 8516: my $location=$parser->get_text('/import');
8517: my $dir=$filename;
8518: $dir=~s|[^/]*$||;
8519: $location=&filelocation($dir,$location);
1.1069 www 8520:
1.1068 www 8521: my $importmode=$token->[2]->{'importmode'};
8522: if ($importmode eq 'problem') {
1.1069 www 8523: # Import as problem/response
1.1068 www 8524: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8525: } elsif ($importmode eq 'part') {
8526: # Import as part(s)
1.1069 www 8527: $importedparts=1;
8528: # We need to get the original file and the imported file to get the part order correct
8529: # Good news: we do not need to worry about nested libraries, since parts cannot be nested
8530: # Load and inspect original file
1.1070 www 8531: if ($#origfileimportpartids<0) {
8532: undef(%importedpartids);
8533: my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
8534: my $origfile=&getfile($origfilelocation);
8535: @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
8536: }
8537:
1.1069 www 8538: # Load and inspect imported file
8539: my $impfile=&getfile($location);
8540: my @impfilepartids=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
8541: if ($#impfilepartids>=0) {
8542: # This problem had parts
1.1070 www 8543: $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
1.1069 www 8544: } else {
8545: # Importing by turning a single problem into a problem part
8546: # It gets the import-tags ID as part-ID
8547: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
1.1070 www 8548: $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
1.1069 www 8549: }
1.1068 www 8550: } else {
8551: # Normal import
8552: $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
8553: if (defined($token->[2]->{'id'})) {
8554: $unikey.='_'.$token->[2]->{'id'};
8555: }
1.1067 www 8556: }
8557:
1.339 albertel 8558: if ($depthcount<20) {
1.736 albertel 8559: my $metadata =
8560: &metadata($uri,'keys', $location,$unikey,
8561: $depthcount+1);
8562: foreach my $meta (split(',',$metadata)) {
8563: $metaentry{':'.$meta}=$metaentry{':'.$meta};
8564: $metathesekeys{$meta}=1;
1.339 albertel 8565: }
1.1068 www 8566:
8567: }
1.1067 www 8568: } else {
8569: #
8570: # Not importing, some other kind of non-package, non-library start tag
8571: #
8572: $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
8573: if (defined($token->[2]->{'id'})) {
8574: $unikey.='_'.$token->[2]->{'id'};
8575: }
1.339 albertel 8576: if (defined($token->[2]->{'name'})) {
8577: $unikey.='_'.$token->[2]->{'name'};
8578: }
8579: $metathesekeys{$unikey}=1;
1.736 albertel 8580: foreach my $param (@{$token->[3]}) {
8581: $metaentry{':'.$unikey.'.'.$param} =
8582: $token->[2]->{$param};
1.339 albertel 8583: }
8584: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 8585: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 8586: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
8587: # only ws inside the tag, and not in default, so use default
8588: # as value
1.599 albertel 8589: $metaentry{':'.$unikey}=$default;
1.908 albertel 8590: } elsif ( $internaltext =~ /\S/ ) {
8591: # something interesting inside the tag
8592: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 8593: } else {
1.908 albertel 8594: # no interesting values, don't set a default
1.339 albertel 8595: }
1.172 www 8596: # end of not-a-package not-a-library import
1.339 albertel 8597: }
1.172 www 8598: # end of not-a-package start tag
1.339 albertel 8599: }
1.172 www 8600: # the next is the end of "start tag"
1.339 albertel 8601: }
8602: }
1.483 albertel 8603: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 8604: $extension = lc($extension);
8605: if ($extension eq 'htm') { $extension='html'; }
8606:
1.737 albertel 8607: foreach my $key (keys(%packagetab)) {
1.483 albertel 8608: #no specific packages #how's our extension
8609: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 8610: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 8611: \%metathesekeys);
8612: }
1.883 albertel 8613:
8614: if (!exists($metaentry{':packages'})
8615: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 8616: foreach my $key (keys(%packagetab)) {
1.483 albertel 8617: #no specific packages well let's get default then
8618: if ($key!~/^default&/) { next; }
1.488 albertel 8619: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 8620: \%metathesekeys);
8621: }
8622: }
1.338 www 8623: # are there custom rights to evaluate
1.599 albertel 8624: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 8625:
1.338 www 8626: #
8627: # Importing a rights file here
1.339 albertel 8628: #
8629: unless ($depthcount) {
1.599 albertel 8630: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 8631: my $dir=$filename;
8632: $dir=~s|[^/]*$||;
8633: $location=&filelocation($dir,$location);
1.736 albertel 8634: my $rights_metadata =
8635: &metadata($uri,'keys',$location,'_rights',
8636: $depthcount+1);
8637: foreach my $rights (split(',',$rights_metadata)) {
8638: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
8639: $metathesekeys{$rights}=1;
1.339 albertel 8640: }
8641: }
8642: }
1.737 albertel 8643: # uniqifiy package listing
8644: my %seen;
8645: my @uniq_packages =
8646: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
8647: $metaentry{':packages'} = join(',',@uniq_packages);
8648:
1.1070 www 8649: if ($importedparts) {
8650: # We had imported parts and need to rebuild partorder
8651: $metaentry{':partorder'}='';
8652: $metathesekeys{'partorder'}=1;
8653: for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
8654: if ($origfileimportpartids[$index] eq 'part') {
8655: # original part, part of the problem
8656: $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
8657: } else {
8658: # we have imported parts at this position
8659: $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
8660: }
8661: }
8662: $metaentry{':partorder'}=~s/^\,//;
8663: }
8664:
1.737 albertel 8665: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 8666: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
8667: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 8668: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 8669: # this is the end of "was not already recently cached
1.71 www 8670: }
1.599 albertel 8671: return $metaentry{':'.$what};
1.261 albertel 8672: }
8673:
1.488 albertel 8674: sub metadata_create_package_def {
1.483 albertel 8675: my ($uri,$key,$package,$metathesekeys)=@_;
8676: my ($pack,$name,$subp)=split(/\&/,$key);
8677: if ($subp eq 'default') { next; }
8678:
1.599 albertel 8679: if (defined($metaentry{':packages'})) {
8680: $metaentry{':packages'}.=','.$package;
1.483 albertel 8681: } else {
1.599 albertel 8682: $metaentry{':packages'}=$package;
1.483 albertel 8683: }
8684: my $value=$packagetab{$key};
8685: my $unikey;
8686: $unikey='parameter_0_'.$name;
1.599 albertel 8687: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 8688: $$metathesekeys{$unikey}=1;
1.599 albertel 8689: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8690: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 8691: }
1.599 albertel 8692: if (defined($metaentry{':'.$unikey.'.default'})) {
8693: $metaentry{':'.$unikey}=
8694: $metaentry{':'.$unikey.'.default'};
1.483 albertel 8695: }
8696: }
8697:
1.261 albertel 8698: sub metadata_generate_part0 {
8699: my ($metadata,$metacache,$uri) = @_;
8700: my %allnames;
1.737 albertel 8701: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 8702: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 8703: my $part=$$metacache{':'.$metakey.'.part'};
8704: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 8705: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 8706: $allnames{$name}=$part;
8707: }
8708: }
8709: }
8710: foreach my $name (keys(%allnames)) {
8711: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 8712: my $key=":parameter_0_$name";
1.261 albertel 8713: $$metacache{"$key.part"}='0';
8714: $$metacache{"$key.name"}=$name;
1.428 albertel 8715: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 8716: $allnames{$name}.'_'.$name.
8717: '.type'};
1.428 albertel 8718: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 8719: '.display'};
1.644 www 8720: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 8721: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 8722: $$metacache{"$key.display"}=$olddis;
8723: }
1.71 www 8724: }
8725:
1.764 albertel 8726: # ------------------------------------------------------ Devalidate title cache
8727:
8728: sub devalidate_title_cache {
8729: my ($url)=@_;
8730: if (!$env{'request.course.id'}) { return; }
8731: my $symb=&symbread($url);
8732: if (!$symb) { return; }
8733: my $key=$env{'request.course.id'}."\0".$symb;
8734: &devalidate_cache_new('title',$key);
8735: }
8736:
1.1014 droeschl 8737: # ------------------------------------------------- Get the title of a course
8738:
8739: sub current_course_title {
8740: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
8741: }
1.301 www 8742: # ------------------------------------------------- Get the title of a resource
8743:
8744: sub gettitle {
8745: my $urlsymb=shift;
8746: my $symb=&symbread($urlsymb);
1.534 albertel 8747: if ($symb) {
1.620 albertel 8748: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 8749: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 8750: if (defined($cached)) {
8751: return $result;
8752: }
1.534 albertel 8753: my ($map,$resid,$url)=&decode_symb($symb);
8754: my $title='';
1.907 albertel 8755: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
8756: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
8757: } else {
8758: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8759: &GDBM_READER(),0640)) {
8760: my $mapid=$bighash{'map_pc_'.&clutter($map)};
8761: $title=$bighash{'title_'.$mapid.'.'.$resid};
8762: untie(%bighash);
8763: }
1.534 albertel 8764: }
8765: $title=~s/\&colon\;/\:/gs;
8766: if ($title) {
1.599 albertel 8767: return &do_cache_new('title',$key,$title,600);
1.534 albertel 8768: }
8769: $urlsymb=$url;
8770: }
8771: my $title=&metadata($urlsymb,'title');
8772: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
8773: return $title;
1.301 www 8774: }
1.613 albertel 8775:
1.614 albertel 8776: sub get_slot {
8777: my ($which,$cnum,$cdom)=@_;
8778: if (!$cnum || !$cdom) {
1.790 albertel 8779: (undef,my $courseid)=&whichuser();
1.620 albertel 8780: $cdom=$env{'course.'.$courseid.'.domain'};
8781: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 8782: }
1.703 albertel 8783: my $key=join("\0",'slots',$cdom,$cnum,$which);
8784: my %slotinfo;
8785: if (exists($remembered{$key})) {
8786: $slotinfo{$which} = $remembered{$key};
8787: } else {
8788: %slotinfo=&get('slots',[$which],$cdom,$cnum);
8789: &Apache::lonhomework::showhash(%slotinfo);
8790: my ($tmp)=keys(%slotinfo);
8791: if ($tmp=~/^error:/) { return (); }
8792: $remembered{$key} = $slotinfo{$which};
8793: }
1.616 albertel 8794: if (ref($slotinfo{$which}) eq 'HASH') {
8795: return %{$slotinfo{$which}};
8796: }
8797: return $slotinfo{$which};
1.614 albertel 8798: }
1.31 www 8799: # ------------------------------------------------- Update symbolic store links
8800:
8801: sub symblist {
8802: my ($mapname,%newhash)=@_;
1.438 www 8803: $mapname=&deversion(&declutter($mapname));
1.31 www 8804: my %hash;
1.620 albertel 8805: if (($env{'request.course.fn'}) && (%newhash)) {
8806: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8807: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 8808: foreach my $url (keys(%newhash)) {
1.711 albertel 8809: next if ($url eq 'last_known'
8810: && $env{'form.no_update_last_known'});
8811: $hash{declutter($url)}=&encode_symb($mapname,
8812: $newhash{$url}->[1],
8813: $newhash{$url}->[0]);
1.191 harris41 8814: }
1.31 www 8815: if (untie(%hash)) {
8816: return 'ok';
8817: }
8818: }
8819: }
8820: return 'error';
1.212 www 8821: }
8822:
8823: # --------------------------------------------------------------- Verify a symb
8824:
8825: sub symbverify {
1.510 www 8826: my ($symb,$thisurl)=@_;
8827: my $thisfn=$thisurl;
1.439 www 8828: $thisfn=&declutter($thisfn);
1.215 www 8829: # direct jump to resource in page or to a sequence - will construct own symbs
8830: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
8831: # check URL part
1.409 www 8832: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 8833:
1.431 www 8834: unless ($url eq $thisfn) { return 0; }
1.213 www 8835:
1.216 www 8836: $symb=&symbclean($symb);
1.510 www 8837: $thisurl=&deversion($thisurl);
1.439 www 8838: $thisfn=&deversion($thisfn);
1.213 www 8839:
8840: my %bighash;
8841: my $okay=0;
1.431 www 8842:
1.620 albertel 8843: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8844: &GDBM_READER(),0640)) {
1.1032 raeburn 8845: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
8846: $thisurl =~ s/\?.+$//;
8847: }
1.510 www 8848: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 8849: unless ($ids) {
1.510 www 8850: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 8851: }
8852: if ($ids) {
8853: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 8854: foreach my $id (split(/\,/,$ids)) {
8855: my ($mapid,$resid)=split(/\./,$id);
1.1032 raeburn 8856: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
8857: $symb =~ s/\?.+$//;
8858: }
1.216 www 8859: if (
8860: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
8861: eq $symb) {
1.620 albertel 8862: if (($env{'request.role.adv'}) ||
1.800 albertel 8863: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 8864: $okay=1;
8865: }
8866: }
1.216 www 8867: }
8868: }
1.213 www 8869: untie(%bighash);
8870: }
8871: return $okay;
1.31 www 8872: }
8873:
1.210 www 8874: # --------------------------------------------------------------- Clean-up symb
8875:
8876: sub symbclean {
8877: my $symb=shift;
1.568 albertel 8878: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 8879: # remove version from map
8880: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 8881:
1.210 www 8882: # remove version from URL
8883: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 8884:
1.507 www 8885: # remove wrapper
8886:
1.510 www 8887: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 8888: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 8889: return $symb;
1.409 www 8890: }
8891:
8892: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 8893:
8894: sub encode_symb {
8895: my ($map,$resid,$url)=@_;
8896: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
8897: }
1.409 www 8898:
8899: sub decode_symb {
1.568 albertel 8900: my $symb=shift;
8901: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
8902: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 8903: return (&fixversion($map),$resid,&fixversion($url));
8904: }
8905:
8906: sub fixversion {
8907: my $fn=shift;
1.609 banghart 8908: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 8909: my %bighash;
8910: my $uri=&clutter($fn);
1.620 albertel 8911: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 8912: # is this cached?
1.599 albertel 8913: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 8914: if (defined($cached)) { return $result; }
8915: # unfortunately not cached, or expired
1.620 albertel 8916: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 8917: &GDBM_READER(),0640)) {
8918: if ($bighash{'version_'.$uri}) {
8919: my $version=$bighash{'version_'.$uri};
1.444 www 8920: unless (($version eq 'mostrecent') ||
8921: ($version==&getversion($uri))) {
1.440 www 8922: $uri=~s/\.(\w+)$/\.$version\.$1/;
8923: }
8924: }
8925: untie %bighash;
1.413 www 8926: }
1.599 albertel 8927: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 8928: }
8929:
8930: sub deversion {
8931: my $url=shift;
8932: $url=~s/\.\d+\.(\w+)$/\.$1/;
8933: return $url;
1.210 www 8934: }
8935:
1.31 www 8936: # ------------------------------------------------------ Return symb list entry
8937:
8938: sub symbread {
1.249 www 8939: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 8940: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 8941: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 8942: # no filename provided? try from environment
1.44 www 8943: unless ($thisfn) {
1.620 albertel 8944: if ($env{'request.symb'}) {
8945: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 8946: }
1.620 albertel 8947: $thisfn=$env{'request.filename'};
1.44 www 8948: }
1.569 albertel 8949: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 8950: # is that filename actually a symb? Verify, clean, and return
8951: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 8952: if (&symbverify($thisfn,$1)) {
1.620 albertel 8953: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 8954: }
1.242 www 8955: }
1.44 www 8956: $thisfn=declutter($thisfn);
1.31 www 8957: my %hash;
1.37 www 8958: my %bighash;
8959: my $syval='';
1.620 albertel 8960: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 8961: my $targetfn = $thisfn;
1.609 banghart 8962: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 8963: $targetfn = 'adm/wrapper/'.$thisfn;
8964: }
1.687 albertel 8965: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
8966: $targetfn=$1;
8967: }
1.620 albertel 8968: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8969: &GDBM_READER(),0640)) {
1.481 raeburn 8970: $syval=$hash{$targetfn};
1.37 www 8971: untie(%hash);
8972: }
8973: # ---------------------------------------------------------- There was an entry
8974: if ($syval) {
1.601 albertel 8975: #unless ($syval=~/\_\d+$/) {
1.620 albertel 8976: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 8977: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8978: #return $env{$cache_str}='';
1.601 albertel 8979: #}
8980: #$syval.=$1;
8981: #}
1.37 www 8982: } else {
8983: # ------------------------------------------------------- Was not in symb table
1.620 albertel 8984: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8985: &GDBM_READER(),0640)) {
1.37 www 8986: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 8987: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 8988: unless ($ids) {
8989: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 8990: }
8991: unless ($ids) {
8992: # alias?
8993: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 8994: }
1.37 www 8995: if ($ids) {
8996: # ------------------------------------------------------------------- Has ID(s)
8997: my @possibilities=split(/\,/,$ids);
1.39 www 8998: if ($#possibilities==0) {
8999: # ----------------------------------------------- There is only one possibility
1.37 www 9000: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 9001: $syval=&encode_symb($bighash{'map_id_'.$mapid},
9002: $resid,$thisfn);
1.249 www 9003: } elsif (!$donotrecurse) {
1.39 www 9004: # ------------------------------------------ There is more than one possibility
9005: my $realpossible=0;
1.800 albertel 9006: foreach my $id (@possibilities) {
9007: my $file=$bighash{'src_'.$id};
1.39 www 9008: if (&allowed('bre',$file)) {
1.800 albertel 9009: my ($mapid,$resid)=split(/\./,$id);
1.39 www 9010: if ($bighash{'map_type_'.$mapid} ne 'page') {
9011: $realpossible++;
1.626 albertel 9012: $syval=&encode_symb($bighash{'map_id_'.$mapid},
9013: $resid,$thisfn);
1.39 www 9014: }
9015: }
1.191 harris41 9016: }
1.39 www 9017: if ($realpossible!=1) { $syval=''; }
1.249 www 9018: } else {
9019: $syval='';
1.37 www 9020: }
9021: }
9022: untie(%bighash)
1.481 raeburn 9023: }
1.31 www 9024: }
1.62 www 9025: if ($syval) {
1.620 albertel 9026: return $env{$cache_str}=$syval;
1.62 www 9027: }
1.31 www 9028: }
1.949 raeburn 9029: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 9030: return $env{$cache_str}='';
1.31 www 9031: }
9032:
9033: # ---------------------------------------------------------- Return random seed
9034:
1.32 www 9035: sub numval {
9036: my $txt=shift;
9037: $txt=~tr/A-J/0-9/;
9038: $txt=~tr/a-j/0-9/;
9039: $txt=~tr/K-T/0-9/;
9040: $txt=~tr/k-t/0-9/;
9041: $txt=~tr/U-Z/0-5/;
9042: $txt=~tr/u-z/0-5/;
9043: $txt=~s/\D//g;
1.564 albertel 9044: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 9045: return int($txt);
1.368 albertel 9046: }
9047:
1.484 albertel 9048: sub numval2 {
9049: my $txt=shift;
9050: $txt=~tr/A-J/0-9/;
9051: $txt=~tr/a-j/0-9/;
9052: $txt=~tr/K-T/0-9/;
9053: $txt=~tr/k-t/0-9/;
9054: $txt=~tr/U-Z/0-5/;
9055: $txt=~tr/u-z/0-5/;
9056: $txt=~s/\D//g;
9057: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
9058: my $total;
9059: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 9060: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 9061: return int($total);
9062: }
9063:
1.575 albertel 9064: sub numval3 {
9065: use integer;
9066: my $txt=shift;
9067: $txt=~tr/A-J/0-9/;
9068: $txt=~tr/a-j/0-9/;
9069: $txt=~tr/K-T/0-9/;
9070: $txt=~tr/k-t/0-9/;
9071: $txt=~tr/U-Z/0-5/;
9072: $txt=~tr/u-z/0-5/;
9073: $txt=~s/\D//g;
9074: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
9075: my $total;
9076: foreach my $val (@txts) { $total+=$val; }
9077: if ($_64bit) { $total=(($total<<32)>>32); }
9078: return $total;
9079: }
9080:
1.675 albertel 9081: sub digest {
9082: my ($data)=@_;
9083: my $digest=&Digest::MD5::md5($data);
9084: my ($a,$b,$c,$d)=unpack("iiii",$digest);
9085: my ($e,$f);
9086: {
9087: use integer;
9088: $e=($a+$b);
9089: $f=($c+$d);
9090: if ($_64bit) {
9091: $e=(($e<<32)>>32);
9092: $f=(($f<<32)>>32);
9093: }
9094: }
9095: if (wantarray) {
9096: return ($e,$f);
9097: } else {
9098: my $g;
9099: {
9100: use integer;
9101: $g=($e+$f);
9102: if ($_64bit) {
9103: $g=(($g<<32)>>32);
9104: }
9105: }
9106: return $g;
9107: }
9108: }
9109:
1.368 albertel 9110: sub latest_rnd_algorithm_id {
1.675 albertel 9111: return '64bit5';
1.366 albertel 9112: }
1.32 www 9113:
1.503 albertel 9114: sub get_rand_alg {
9115: my ($courseid)=@_;
1.790 albertel 9116: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 9117: if ($courseid) {
1.620 albertel 9118: return $env{"course.$courseid.rndseed"};
1.503 albertel 9119: }
9120: return &latest_rnd_algorithm_id();
9121: }
9122:
1.562 albertel 9123: sub validCODE {
9124: my ($CODE)=@_;
9125: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
9126: return 0;
9127: }
9128:
1.491 albertel 9129: sub getCODE {
1.620 albertel 9130: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 9131: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
9132: defined($Apache::lonhomework::parsing_a_task) ) &&
9133: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 9134: return $Apache::lonhomework::history{'resource.CODE'};
9135: }
9136: return undef;
9137: }
9138:
1.31 www 9139: sub rndseed {
1.155 albertel 9140: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 9141: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 9142: if (!defined($symb)) {
1.366 albertel 9143: unless ($symb=$wsymb) { return time; }
9144: }
9145: if (!$courseid) { $courseid=$wcourseid; }
9146: if (!$domain) { $domain=$wdomain; }
9147: if (!$username) { $username=$wusername }
1.503 albertel 9148: my $which=&get_rand_alg();
1.803 albertel 9149:
1.491 albertel 9150: if (defined(&getCODE())) {
1.675 albertel 9151: if ($which eq '64bit5') {
9152: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
9153: } elsif ($which eq '64bit4') {
1.575 albertel 9154: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
9155: } else {
9156: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
9157: }
1.675 albertel 9158: } elsif ($which eq '64bit5') {
9159: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 9160: } elsif ($which eq '64bit4') {
9161: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 9162: } elsif ($which eq '64bit3') {
9163: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 9164: } elsif ($which eq '64bit2') {
9165: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 9166: } elsif ($which eq '64bit') {
9167: return &rndseed_64bit($symb,$courseid,$domain,$username);
9168: }
9169: return &rndseed_32bit($symb,$courseid,$domain,$username);
9170: }
9171:
9172: sub rndseed_32bit {
9173: my ($symb,$courseid,$domain,$username)=@_;
9174: {
9175: use integer;
9176: my $symbchck=unpack("%32C*",$symb) << 27;
9177: my $symbseed=numval($symb) << 22;
9178: my $namechck=unpack("%32C*",$username) << 17;
9179: my $nameseed=numval($username) << 12;
9180: my $domainseed=unpack("%32C*",$domain) << 7;
9181: my $courseseed=unpack("%32C*",$courseid);
9182: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 9183: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9184: #&logthis("rndseed :$num:$symb");
1.564 albertel 9185: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 9186: return $num;
9187: }
9188: }
9189:
9190: sub rndseed_64bit {
9191: my ($symb,$courseid,$domain,$username)=@_;
9192: {
9193: use integer;
9194: my $symbchck=unpack("%32S*",$symb) << 21;
9195: my $symbseed=numval($symb) << 10;
9196: my $namechck=unpack("%32S*",$username);
9197:
9198: my $nameseed=numval($username) << 21;
9199: my $domainseed=unpack("%32S*",$domain) << 10;
9200: my $courseseed=unpack("%32S*",$courseid);
9201:
9202: my $num1=$symbchck+$symbseed+$namechck;
9203: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9204: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9205: #&logthis("rndseed :$num:$symb");
1.564 albertel 9206: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 9207: return "$num1,$num2";
1.155 albertel 9208: }
1.366 albertel 9209: }
9210:
1.443 albertel 9211: sub rndseed_64bit2 {
9212: my ($symb,$courseid,$domain,$username)=@_;
9213: {
9214: use integer;
9215: # strings need to be an even # of cahracters long, it it is odd the
9216: # last characters gets thrown away
9217: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9218: my $symbseed=numval($symb) << 10;
9219: my $namechck=unpack("%32S*",$username.' ');
9220:
9221: my $nameseed=numval($username) << 21;
1.501 albertel 9222: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9223: my $courseseed=unpack("%32S*",$courseid.' ');
9224:
9225: my $num1=$symbchck+$symbseed+$namechck;
9226: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9227: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9228: #&logthis("rndseed :$num:$symb");
1.803 albertel 9229: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 9230: return "$num1,$num2";
9231: }
9232: }
9233:
9234: sub rndseed_64bit3 {
9235: my ($symb,$courseid,$domain,$username)=@_;
9236: {
9237: use integer;
9238: # strings need to be an even # of cahracters long, it it is odd the
9239: # last characters gets thrown away
9240: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9241: my $symbseed=numval2($symb) << 10;
9242: my $namechck=unpack("%32S*",$username.' ');
9243:
9244: my $nameseed=numval2($username) << 21;
1.443 albertel 9245: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9246: my $courseseed=unpack("%32S*",$courseid.' ');
9247:
9248: my $num1=$symbchck+$symbseed+$namechck;
9249: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9250: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9251: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 9252: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
9253:
1.503 albertel 9254: return "$num1:$num2";
1.443 albertel 9255: }
9256: }
9257:
1.575 albertel 9258: sub rndseed_64bit4 {
9259: my ($symb,$courseid,$domain,$username)=@_;
9260: {
9261: use integer;
9262: # strings need to be an even # of cahracters long, it it is odd the
9263: # last characters gets thrown away
9264: my $symbchck=unpack("%32S*",$symb.' ') << 21;
9265: my $symbseed=numval3($symb) << 10;
9266: my $namechck=unpack("%32S*",$username.' ');
9267:
9268: my $nameseed=numval3($username) << 21;
9269: my $domainseed=unpack("%32S*",$domain.' ') << 10;
9270: my $courseseed=unpack("%32S*",$courseid.' ');
9271:
9272: my $num1=$symbchck+$symbseed+$namechck;
9273: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 9274: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
9275: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 9276: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
9277:
9278: return "$num1:$num2";
9279: }
9280: }
9281:
1.675 albertel 9282: sub rndseed_64bit5 {
9283: my ($symb,$courseid,$domain,$username)=@_;
9284: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
9285: return "$num1:$num2";
9286: }
9287:
1.366 albertel 9288: sub rndseed_CODE_64bit {
9289: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 9290: {
1.366 albertel 9291: use integer;
1.443 albertel 9292: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 9293: my $symbseed=numval2($symb);
1.491 albertel 9294: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
9295: my $CODEseed=numval(&getCODE());
1.443 albertel 9296: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 9297: my $num1=$symbseed+$CODEchck;
9298: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 9299: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
9300: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 9301: if ($_64bit) { $num1=(($num1<<32)>>32); }
9302: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 9303: return "$num1:$num2";
1.366 albertel 9304: }
9305: }
9306:
1.575 albertel 9307: sub rndseed_CODE_64bit4 {
9308: my ($symb,$courseid,$domain,$username)=@_;
9309: {
9310: use integer;
9311: my $symbchck=unpack("%32S*",$symb.' ') << 16;
9312: my $symbseed=numval3($symb);
9313: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
9314: my $CODEseed=numval3(&getCODE());
9315: my $courseseed=unpack("%32S*",$courseid.' ');
9316: my $num1=$symbseed+$CODEchck;
9317: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 9318: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
9319: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 9320: if ($_64bit) { $num1=(($num1<<32)>>32); }
9321: if ($_64bit) { $num2=(($num2<<32)>>32); }
9322: return "$num1:$num2";
9323: }
9324: }
9325:
1.675 albertel 9326: sub rndseed_CODE_64bit5 {
9327: my ($symb,$courseid,$domain,$username)=@_;
9328: my $code = &getCODE();
9329: my ($num1,$num2)=&digest("$symb,$courseid,$code");
9330: return "$num1:$num2";
9331: }
9332:
1.366 albertel 9333: sub setup_random_from_rndseed {
9334: my ($rndseed)=@_;
1.503 albertel 9335: if ($rndseed =~/([,:])/) {
9336: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 9337: &Math::Random::random_set_seed(abs($num1),abs($num2));
9338: } else {
9339: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 9340: }
1.36 albertel 9341: }
9342:
1.474 albertel 9343: sub latest_receipt_algorithm_id {
1.835 albertel 9344: return 'receipt3';
1.474 albertel 9345: }
9346:
1.480 www 9347: sub recunique {
9348: my $fucourseid=shift;
9349: my $unique;
1.835 albertel 9350: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
9351: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 9352: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 9353: } else {
9354: $unique=$perlvar{'lonReceipt'};
9355: }
9356: return unpack("%32C*",$unique);
9357: }
9358:
9359: sub recprefix {
9360: my $fucourseid=shift;
9361: my $prefix;
1.835 albertel 9362: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
9363: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 9364: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 9365: } else {
9366: $prefix=$perlvar{'lonHostID'};
9367: }
9368: return unpack("%32C*",$prefix);
9369: }
9370:
1.76 www 9371: sub ireceipt {
1.474 albertel 9372: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 9373:
9374: my $return =&recprefix($fucourseid).'-';
9375:
9376: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
9377: $env{'request.state'} eq 'construct') {
9378: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
9379: return $return;
9380: }
9381:
1.76 www 9382: my $cuname=unpack("%32C*",$funame);
9383: my $cudom=unpack("%32C*",$fudom);
9384: my $cucourseid=unpack("%32C*",$fucourseid);
9385: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 9386: my $cunique=&recunique($fucourseid);
1.474 albertel 9387: my $cpart=unpack("%32S*",$part);
1.835 albertel 9388: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
9389:
1.790 albertel 9390: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 9391:
9392: $return.= ($cunique%$cuname+
9393: $cunique%$cudom+
9394: $cusymb%$cuname+
9395: $cusymb%$cudom+
9396: $cucourseid%$cuname+
9397: $cucourseid%$cudom+
9398: $cpart%$cuname+
9399: $cpart%$cudom);
9400: } else {
9401: $return.= ($cunique%$cuname+
9402: $cunique%$cudom+
9403: $cusymb%$cuname+
9404: $cusymb%$cudom+
9405: $cucourseid%$cuname+
9406: $cucourseid%$cudom);
9407: }
9408: return $return;
1.76 www 9409: }
9410:
9411: sub receipt {
1.474 albertel 9412: my ($part)=@_;
1.790 albertel 9413: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 9414: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 9415: }
1.260 ng 9416:
1.790 albertel 9417: sub whichuser {
9418: my ($passedsymb)=@_;
9419: my ($symb,$courseid,$domain,$name,$publicuser);
9420: if (defined($env{'form.grade_symb'})) {
9421: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
9422: my $allowed=&allowed('vgr',$tmp_courseid);
9423: if (!$allowed &&
9424: exists($env{'request.course.sec'}) &&
9425: $env{'request.course.sec'} !~ /^\s*$/) {
9426: $allowed=&allowed('vgr',$tmp_courseid.
9427: '/'.$env{'request.course.sec'});
9428: }
9429: if ($allowed) {
9430: ($symb)=&get_env_multiple('form.grade_symb');
9431: $courseid=$tmp_courseid;
9432: ($domain)=&get_env_multiple('form.grade_domain');
9433: ($name)=&get_env_multiple('form.grade_username');
9434: return ($symb,$courseid,$domain,$name,$publicuser);
9435: }
9436: }
9437: if (!$passedsymb) {
9438: $symb=&symbread();
9439: } else {
9440: $symb=$passedsymb;
9441: }
9442: $courseid=$env{'request.course.id'};
9443: $domain=$env{'user.domain'};
9444: $name=$env{'user.name'};
9445: if ($name eq 'public' && $domain eq 'public') {
9446: if (!defined($env{'form.username'})) {
9447: $env{'form.username'}.=time.rand(10000000);
9448: }
9449: $name.=$env{'form.username'};
9450: }
9451: return ($symb,$courseid,$domain,$name,$publicuser);
9452:
9453: }
9454:
1.36 albertel 9455: # ------------------------------------------------------------ Serves up a file
1.472 albertel 9456: # returns either the contents of the file or
9457: # -1 if the file doesn't exist
1.481 raeburn 9458: #
9459: # if the target is a file that was uploaded via DOCS,
9460: # a check will be made to see if a current copy exists on the local server,
9461: # if it does this will be served, otherwise a copy will be retrieved from
9462: # the home server for the course and stored in /home/httpd/html/userfiles on
9463: # the local server.
1.472 albertel 9464:
1.36 albertel 9465: sub getfile {
1.538 albertel 9466: my ($file) = @_;
1.609 banghart 9467: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 9468: &repcopy($file);
9469: return &readfile($file);
9470: }
9471:
9472: sub repcopy_userfile {
9473: my ($file)=@_;
1.609 banghart 9474: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 9475: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 9476: my ($cdom,$cnum,$filename) =
1.811 albertel 9477: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 9478: my $uri="/uploaded/$cdom/$cnum/$filename";
9479: if (-e "$file") {
1.828 www 9480: # we already have a local copy, check it out
1.538 albertel 9481: my @fileinfo = stat($file);
1.828 www 9482: my $rtncode;
9483: my $info;
1.538 albertel 9484: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 9485: if ($lwpresp ne 'ok') {
1.828 www 9486: # there is no such file anymore, even though we had a local copy
1.482 albertel 9487: if ($rtncode eq '404') {
1.538 albertel 9488: unlink($file);
1.482 albertel 9489: }
9490: return -1;
9491: }
9492: if ($info < $fileinfo[9]) {
1.828 www 9493: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 9494: return 'ok';
1.828 www 9495: } else {
9496: # the file is outdated, get rid of it
9497: unlink($file);
1.482 albertel 9498: }
1.828 www 9499: }
9500: # one way or the other, at this point, we don't have the file
9501: # construct the correct path for the file
9502: my @parts = ($cdom,$cnum);
9503: if ($filename =~ m|^(.+)/[^/]+$|) {
9504: push @parts, split(/\//,$1);
9505: }
9506: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
9507: foreach my $part (@parts) {
9508: $path .= '/'.$part;
9509: if (!-e $path) {
9510: mkdir($path,0770);
1.482 albertel 9511: }
9512: }
1.828 www 9513: # now the path exists for sure
9514: # get a user agent
9515: my $ua=new LWP::UserAgent;
9516: my $transferfile=$file.'.in.transfer';
9517: # FIXME: this should flock
9518: if (-e $transferfile) { return 'ok'; }
9519: my $request;
9520: $uri=~s/^\///;
1.980 raeburn 9521: my $homeserver = &homeserver($cnum,$cdom);
9522: my $protocol = $protocol{$homeserver};
9523: $protocol = 'http' if ($protocol ne 'https');
9524: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 9525: my $response=$ua->request($request,$transferfile);
9526: # did it work?
9527: if ($response->is_error()) {
9528: unlink($transferfile);
9529: &logthis("Userfile repcopy failed for $uri");
9530: return -1;
9531: }
9532: # worked, rename the transfer file
9533: rename($transferfile,$file);
1.607 raeburn 9534: return 'ok';
1.481 raeburn 9535: }
9536:
1.517 albertel 9537: sub tokenwrapper {
9538: my $uri=shift;
1.980 raeburn 9539: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 9540: $uri=~s|^/||;
1.620 albertel 9541: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 9542: my $token=$1;
1.552 albertel 9543: my (undef,$udom,$uname,$file)=split('/',$uri,4);
9544: if ($udom && $uname && $file) {
9545: $file=~s|(\?\.*)*$||;
1.949 raeburn 9546: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 9547: my $homeserver = &homeserver($uname,$udom);
9548: my $protocol = $protocol{$homeserver};
9549: $protocol = 'http' if ($protocol ne 'https');
9550: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 9551: (($uri=~/\?/)?'&':'?').'token='.$token.
9552: '&tokenissued='.$perlvar{'lonHostID'};
9553: } else {
9554: return '/adm/notfound.html';
9555: }
9556: }
9557:
1.828 www 9558: # call with reqtype HEAD: get last modification time
9559: # call with reqtype GET: get the file contents
9560: # Do not call this with reqtype GET for large files! It loads everything into memory
9561: #
1.481 raeburn 9562: sub getuploaded {
9563: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
9564: $uri=~s/^\///;
1.980 raeburn 9565: my $homeserver = &homeserver($cnum,$cdom);
9566: my $protocol = $protocol{$homeserver};
9567: $protocol = 'http' if ($protocol ne 'https');
9568: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 9569: my $ua=new LWP::UserAgent;
9570: my $request=new HTTP::Request($reqtype,$uri);
9571: my $response=$ua->request($request);
9572: $$rtncode = $response->code;
1.482 albertel 9573: if (! $response->is_success()) {
9574: return 'failed';
9575: }
9576: if ($reqtype eq 'HEAD') {
1.486 www 9577: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 9578: } elsif ($reqtype eq 'GET') {
9579: $$info = $response->content;
1.472 albertel 9580: }
1.482 albertel 9581: return 'ok';
1.36 albertel 9582: }
9583:
1.481 raeburn 9584: sub readfile {
9585: my $file = shift;
9586: if ( (! -e $file ) || ($file eq '') ) { return -1; };
9587: my $fh;
9588: open($fh,"<$file");
9589: my $a='';
1.800 albertel 9590: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 9591: return $a;
9592: }
9593:
1.36 albertel 9594: sub filelocation {
1.590 banghart 9595: my ($dir,$file) = @_;
9596: my $location;
9597: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 9598:
9599: if ($file =~ m-^/adm/-) {
9600: $file=~s-^/adm/wrapper/-/-;
9601: $file=~s-^/adm/coursedocs/showdoc/-/-;
9602: }
1.882 albertel 9603:
1.590 banghart 9604: if ($file=~m:^/~:) { # is a contruction space reference
9605: $location = $file;
9606: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 9607: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 9608: # is a correct contruction space reference
9609: $location = $file;
1.956 raeburn 9610: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
9611: $location = $file;
1.609 banghart 9612: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 9613: my ($udom,$uname,$filename)=
1.811 albertel 9614: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 9615: my $home=&homeserver($uname,$udom);
9616: my $is_me=0;
9617: my @ids=¤t_machine_ids();
9618: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
9619: if ($is_me) {
1.955 raeburn 9620: $location=&propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 9621: } else {
9622: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
9623: $udom.'/'.$uname.'/'.$filename;
9624: }
1.882 albertel 9625: } elsif ($file =~ m-^/adm/-) {
9626: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 9627: } else {
9628: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
9629: $file=~s:^/res/:/:;
9630: if ( !( $file =~ m:^/:) ) {
9631: $location = $dir. '/'.$file;
9632: } else {
9633: $location = '/home/httpd/html/res'.$file;
9634: }
1.59 albertel 9635: }
1.590 banghart 9636: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 9637: while ($location=~m{/\.\./}) {
9638: if ($location =~ m{/[^/]+/\.\./}) {
9639: $location=~ s{/[^/]+/\.\./}{/}g;
9640: } else {
9641: $location=~ s{/\.\./}{/}g;
9642: }
9643: } #remove dir/..
1.590 banghart 9644: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
9645: return $location;
1.46 www 9646: }
1.36 albertel 9647:
1.46 www 9648: sub hreflocation {
9649: my ($dir,$file)=@_;
1.980 raeburn 9650: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 9651: $file=filelocation($dir,$file);
1.700 albertel 9652: } elsif ($file=~m-^/adm/-) {
9653: $file=~s-^/adm/wrapper/-/-;
9654: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 9655: }
9656: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
9657: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 9658: } elsif ($file=~m-/home/($match_username)/public_html/-) {
9659: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 9660: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 9661: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 9662: -/uploaded/$1/$2/-x;
1.46 www 9663: }
1.913 albertel 9664: if ($file=~ m{^/userfiles/}) {
9665: $file =~ s{^/userfiles/}{/uploaded/};
9666: }
1.462 albertel 9667: return $file;
1.465 albertel 9668: }
9669:
9670: sub current_machine_domains {
1.853 albertel 9671: return &machine_domains(&hostname($perlvar{'lonHostID'}));
9672: }
9673:
9674: sub machine_domains {
9675: my ($hostname) = @_;
1.465 albertel 9676: my @domains;
1.838 albertel 9677: my %hostname = &all_hostnames();
1.465 albertel 9678: while( my($id, $name) = each(%hostname)) {
1.467 matthew 9679: # &logthis("-$id-$name-$hostname-");
1.465 albertel 9680: if ($hostname eq $name) {
1.844 albertel 9681: push(@domains,&host_domain($id));
1.465 albertel 9682: }
9683: }
9684: return @domains;
9685: }
9686:
9687: sub current_machine_ids {
1.853 albertel 9688: return &machine_ids(&hostname($perlvar{'lonHostID'}));
9689: }
9690:
9691: sub machine_ids {
9692: my ($hostname) = @_;
9693: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 9694: my @ids;
1.888 albertel 9695: my %name_to_host = &all_names();
1.889 albertel 9696: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
9697: return @{ $name_to_host{$hostname} };
9698: }
9699: return;
1.31 www 9700: }
9701:
1.824 raeburn 9702: sub additional_machine_domains {
9703: my @domains;
9704: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
9705: while( my $line = <$fh>) {
9706: $line =~ s/\s//g;
9707: push(@domains,$line);
9708: }
9709: return @domains;
9710: }
9711:
9712: sub default_login_domain {
9713: my $domain = $perlvar{'lonDefDomain'};
9714: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
9715: foreach my $posdom (¤t_machine_domains(),
9716: &additional_machine_domains()) {
9717: if (lc($posdom) eq lc($testdomain)) {
9718: $domain=$posdom;
9719: last;
9720: }
9721: }
9722: return $domain;
9723: }
9724:
1.31 www 9725: # ------------------------------------------------------------- Declutters URLs
9726:
9727: sub declutter {
9728: my $thisfn=shift;
1.569 albertel 9729: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 9730: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 9731: $thisfn=~s/^\///;
1.697 albertel 9732: $thisfn=~s|^adm/wrapper/||;
9733: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 9734: $thisfn=~s/^res\///;
1.1032 raeburn 9735: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
9736: $thisfn=~s/\?.+$//;
9737: }
1.268 www 9738: return $thisfn;
9739: }
9740:
9741: # ------------------------------------------------------------- Clutter up URLs
9742:
9743: sub clutter {
9744: my $thisfn='/'.&declutter(shift);
1.887 albertel 9745: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 9746: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 9747: $thisfn='/res'.$thisfn;
9748: }
1.1031 raeburn 9749: if ($thisfn !~m|^/adm|) {
9750: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 9751: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 9752: } else {
9753: my ($ext) = ($thisfn =~ /\.(\w+)$/);
9754: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 9755: if ($embstyle eq 'ssi'
9756: || ($embstyle eq 'hdn')
9757: || ($embstyle eq 'rat')
9758: || ($embstyle eq 'prv')
9759: || ($embstyle eq 'ign')) {
9760: #do nothing with these
9761: } elsif (($embstyle eq 'img')
1.695 albertel 9762: || ($embstyle eq 'emb')
9763: || ($embstyle eq 'wrp')) {
9764: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 9765: } elsif ($embstyle eq 'unk'
9766: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 9767: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 9768: } else {
1.718 www 9769: # &logthis("Got a blank emb style");
1.695 albertel 9770: }
1.694 albertel 9771: }
9772: }
1.31 www 9773: return $thisfn;
1.12 www 9774: }
9775:
1.787 albertel 9776: sub clutter_with_no_wrapper {
9777: my $uri = &clutter(shift);
9778: if ($uri =~ m-^/adm/-) {
9779: $uri =~ s-^/adm/wrapper/-/-;
9780: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
9781: }
9782: return $uri;
9783: }
9784:
1.557 albertel 9785: sub freeze_escape {
9786: my ($value)=@_;
9787: if (ref($value)) {
9788: $value=&nfreeze($value);
9789: return '__FROZEN__'.&escape($value);
9790: }
9791: return &escape($value);
9792: }
9793:
1.11 www 9794:
1.557 albertel 9795: sub thaw_unescape {
9796: my ($value)=@_;
9797: if ($value =~ /^__FROZEN__/) {
9798: substr($value,0,10,undef);
9799: $value=&unescape($value);
9800: return &thaw($value);
9801: }
9802: return &unescape($value);
9803: }
9804:
1.436 albertel 9805: sub correct_line_ends {
9806: my ($result)=@_;
9807: $$result =~s/\r\n/\n/mg;
9808: $$result =~s/\r/\n/mg;
1.415 albertel 9809: }
1.1 albertel 9810: # ================================================================ Main Program
9811:
1.184 www 9812: sub goodbye {
1.204 albertel 9813: &logthis("Starting Shut down");
1.443 albertel 9814: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 9815: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 9816: #converted
1.599 albertel 9817: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 9818: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
9819: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
9820: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 9821: #1.1 only
1.870 albertel 9822: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
9823: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
9824: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
9825: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
9826: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 9827: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
9828: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 9829: &flushcourselogs();
9830: &logthis("Shutting down");
9831: }
9832:
1.852 albertel 9833: sub get_dns {
1.869 albertel 9834: my ($url,$func,$ignore_cache) = @_;
9835: if (!$ignore_cache) {
9836: my ($content,$cached)=
9837: &Apache::lonnet::is_cached_new('dns',$url);
9838: if ($cached) {
9839: &$func($content);
9840: return;
9841: }
9842: }
9843:
9844: my %alldns;
1.852 albertel 9845: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9846: foreach my $dns (<$config>) {
9847: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 9848: my $line = $1;
9849: my ($host,$protocol) = split(/:/,$line);
9850: if ($protocol ne 'https') {
9851: $protocol = 'http';
9852: }
9853: $alldns{$host} = $protocol;
1.869 albertel 9854: }
9855: while (%alldns) {
9856: my ($dns) = keys(%alldns);
1.852 albertel 9857: my $ua=new LWP::UserAgent;
1.979 raeburn 9858: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 9859: my $response=$ua->request($request);
1.979 raeburn 9860: delete($alldns{$dns});
1.852 albertel 9861: next if ($response->is_error());
9862: my @content = split("\n",$response->content);
1.869 albertel 9863: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 9864: &$func(\@content);
1.869 albertel 9865: return;
1.852 albertel 9866: }
9867: close($config);
1.871 albertel 9868: my $which = (split('/',$url))[3];
9869: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
9870: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 9871: my @content = <$config>;
9872: &$func(\@content);
9873: return;
1.852 albertel 9874: }
1.327 albertel 9875: # ------------------------------------------------------------ Read domain file
9876: {
1.852 albertel 9877: my $loaded;
1.846 albertel 9878: my %domain;
9879:
1.852 albertel 9880: sub parse_domain_tab {
9881: my ($lines) = @_;
9882: foreach my $line (@$lines) {
9883: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 9884:
1.846 albertel 9885: chomp($line);
1.852 albertel 9886: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 9887: my %this_domain;
9888: foreach my $field ('description', 'auth_def', 'auth_arg_def',
9889: 'lang_def', 'city', 'longi', 'lati',
9890: 'primary') {
9891: $this_domain{$field} = shift(@elements);
9892: }
9893: $domain{$name} = \%this_domain;
1.852 albertel 9894: }
9895: }
1.864 albertel 9896:
9897: sub reset_domain_info {
9898: undef($loaded);
9899: undef(%domain);
9900: }
9901:
1.852 albertel 9902: sub load_domain_tab {
1.869 albertel 9903: my ($ignore_cache) = @_;
9904: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 9905: my $fh;
9906: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
9907: my @lines = <$fh>;
9908: &parse_domain_tab(\@lines);
1.448 albertel 9909: }
1.852 albertel 9910: close($fh);
9911: $loaded = 1;
1.327 albertel 9912: }
1.846 albertel 9913:
9914: sub domain {
1.852 albertel 9915: &load_domain_tab() if (!$loaded);
9916:
1.846 albertel 9917: my ($name,$what) = @_;
9918: return if ( !exists($domain{$name}) );
9919:
9920: if (!$what) {
9921: return $domain{$name}{'description'};
9922: }
9923: return $domain{$name}{$what};
9924: }
1.974 raeburn 9925:
9926: sub domain_info {
9927: &load_domain_tab() if (!$loaded);
9928: return %domain;
9929: }
9930:
1.327 albertel 9931: }
9932:
9933:
1.1 albertel 9934: # ------------------------------------------------------------- Read hosts file
9935: {
1.838 albertel 9936: my %hostname;
1.844 albertel 9937: my %hostdom;
1.845 albertel 9938: my %libserv;
1.852 albertel 9939: my $loaded;
1.888 albertel 9940: my %name_to_host;
1.1074 raeburn 9941: my %internetdom;
1.852 albertel 9942:
9943: sub parse_hosts_tab {
9944: my ($file) = @_;
9945: foreach my $configline (@$file) {
9946: next if ($configline =~ /^(\#|\s*$ )/x);
9947: next if ($configline =~ /^\^/);
9948: chomp($configline);
1.1074 raeburn 9949: my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
1.852 albertel 9950: $name=~s/\s//g;
9951: if ($id && $domain && $role && $name) {
9952: $hostname{$id}=$name;
1.888 albertel 9953: push(@{$name_to_host{$name}}, $id);
1.852 albertel 9954: $hostdom{$id}=$domain;
9955: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 9956: if (defined($protocol)) {
9957: if ($protocol eq 'https') {
9958: $protocol{$id} = $protocol;
9959: } else {
9960: $protocol{$id} = 'http';
9961: }
1.968 raeburn 9962: } else {
1.969 raeburn 9963: $protocol{$id} = 'http';
1.968 raeburn 9964: }
1.1074 raeburn 9965: if (defined($intdom)) {
9966: $internetdom{$id} = $intdom;
9967: }
1.852 albertel 9968: }
9969: }
9970: }
1.864 albertel 9971:
9972: sub reset_hosts_info {
1.897 albertel 9973: &purge_remembered();
1.864 albertel 9974: &reset_domain_info();
9975: &reset_hosts_ip_info();
1.892 albertel 9976: undef(%name_to_host);
1.864 albertel 9977: undef(%hostname);
9978: undef(%hostdom);
9979: undef(%libserv);
9980: undef($loaded);
9981: }
1.1 albertel 9982:
1.852 albertel 9983: sub load_hosts_tab {
1.869 albertel 9984: my ($ignore_cache) = @_;
9985: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 9986: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9987: my @config = <$config>;
9988: &parse_hosts_tab(\@config);
9989: close($config);
9990: $loaded=1;
1.1 albertel 9991: }
1.852 albertel 9992:
1.838 albertel 9993: sub hostname {
1.852 albertel 9994: &load_hosts_tab() if (!$loaded);
9995:
1.838 albertel 9996: my ($lonid) = @_;
9997: return $hostname{$lonid};
9998: }
1.845 albertel 9999:
1.838 albertel 10000: sub all_hostnames {
1.852 albertel 10001: &load_hosts_tab() if (!$loaded);
10002:
1.838 albertel 10003: return %hostname;
10004: }
1.845 albertel 10005:
1.888 albertel 10006: sub all_names {
10007: &load_hosts_tab() if (!$loaded);
10008:
10009: return %name_to_host;
10010: }
10011:
1.974 raeburn 10012: sub all_host_domain {
10013: &load_hosts_tab() if (!$loaded);
10014: return %hostdom;
10015: }
10016:
1.845 albertel 10017: sub is_library {
1.852 albertel 10018: &load_hosts_tab() if (!$loaded);
10019:
1.845 albertel 10020: return exists($libserv{$_[0]});
10021: }
10022:
10023: sub all_library {
1.852 albertel 10024: &load_hosts_tab() if (!$loaded);
10025:
1.845 albertel 10026: return %libserv;
10027: }
10028:
1.1062 droeschl 10029: sub unique_library {
10030: #2x reverse removes all hostnames that appear more than once
10031: my %unique = reverse &all_library();
10032: return reverse %unique;
10033: }
10034:
1.841 albertel 10035: sub get_servers {
1.852 albertel 10036: &load_hosts_tab() if (!$loaded);
10037:
1.841 albertel 10038: my ($domain,$type) = @_;
10039: my %possible_hosts = ($type eq 'library') ? %libserv
10040: : %hostname;
10041: my %result;
1.842 albertel 10042: if (ref($domain) eq 'ARRAY') {
10043: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 10044: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 10045: $result{$host} = $hostname;
10046: }
10047: }
10048: } else {
10049: while ( my ($host,$hostname) = each(%possible_hosts)) {
10050: if ($hostdom{$host} eq $domain) {
10051: $result{$host} = $hostname;
10052: }
1.841 albertel 10053: }
10054: }
10055: return %result;
10056: }
1.845 albertel 10057:
1.1062 droeschl 10058: sub get_unique_servers {
10059: my %unique = reverse &get_servers(@_);
10060: return reverse %unique;
10061: }
10062:
1.844 albertel 10063: sub host_domain {
1.852 albertel 10064: &load_hosts_tab() if (!$loaded);
10065:
1.844 albertel 10066: my ($lonid) = @_;
10067: return $hostdom{$lonid};
10068: }
10069:
1.841 albertel 10070: sub all_domains {
1.852 albertel 10071: &load_hosts_tab() if (!$loaded);
10072:
1.841 albertel 10073: my %seen;
10074: my @uniq = grep(!$seen{$_}++, values(%hostdom));
10075: return @uniq;
10076: }
1.1074 raeburn 10077:
10078: sub internet_dom {
10079: &load_hosts_tab() if (!$loaded);
10080:
10081: my ($lonid) = @_;
10082: return $internetdom{$lonid};
10083: }
1.1 albertel 10084: }
10085:
1.847 albertel 10086: {
10087: my %iphost;
1.856 albertel 10088: my %name_to_ip;
10089: my %lonid_to_ip;
1.869 albertel 10090:
1.847 albertel 10091: sub get_hosts_from_ip {
10092: my ($ip) = @_;
10093: my %iphosts = &get_iphost();
10094: if (ref($iphosts{$ip})) {
10095: return @{$iphosts{$ip}};
10096: }
10097: return;
1.839 albertel 10098: }
1.864 albertel 10099:
10100: sub reset_hosts_ip_info {
10101: undef(%iphost);
10102: undef(%name_to_ip);
10103: undef(%lonid_to_ip);
10104: }
1.856 albertel 10105:
10106: sub get_host_ip {
10107: my ($lonid) = @_;
10108: if (exists($lonid_to_ip{$lonid})) {
10109: return $lonid_to_ip{$lonid};
10110: }
10111: my $name=&hostname($lonid);
10112: my $ip = gethostbyname($name);
10113: return if (!$ip || length($ip) ne 4);
10114: $ip=inet_ntoa($ip);
10115: $name_to_ip{$name} = $ip;
10116: $lonid_to_ip{$lonid} = $ip;
10117: return $ip;
10118: }
1.847 albertel 10119:
10120: sub get_iphost {
1.869 albertel 10121: my ($ignore_cache) = @_;
1.894 albertel 10122:
1.869 albertel 10123: if (!$ignore_cache) {
10124: if (%iphost) {
10125: return %iphost;
10126: }
10127: my ($ip_info,$cached)=
10128: &Apache::lonnet::is_cached_new('iphost','iphost');
10129: if ($cached) {
10130: %iphost = %{$ip_info->[0]};
10131: %name_to_ip = %{$ip_info->[1]};
10132: %lonid_to_ip = %{$ip_info->[2]};
10133: return %iphost;
10134: }
10135: }
1.894 albertel 10136:
10137: # get yesterday's info for fallback
10138: my %old_name_to_ip;
10139: my ($ip_info,$cached)=
10140: &Apache::lonnet::is_cached_new('iphost','iphost');
10141: if ($cached) {
10142: %old_name_to_ip = %{$ip_info->[1]};
10143: }
10144:
1.888 albertel 10145: my %name_to_host = &all_names();
10146: foreach my $name (keys(%name_to_host)) {
1.847 albertel 10147: my $ip;
10148: if (!exists($name_to_ip{$name})) {
10149: $ip = gethostbyname($name);
10150: if (!$ip || length($ip) ne 4) {
1.894 albertel 10151: if (defined($old_name_to_ip{$name})) {
10152: $ip = $old_name_to_ip{$name};
10153: &logthis("Can't find $name defaulting to old $ip");
10154: } else {
10155: &logthis("Name $name no IP found");
10156: next;
10157: }
10158: } else {
10159: $ip=inet_ntoa($ip);
1.847 albertel 10160: }
10161: $name_to_ip{$name} = $ip;
10162: } else {
10163: $ip = $name_to_ip{$name};
1.653 albertel 10164: }
1.888 albertel 10165: foreach my $id (@{ $name_to_host{$name} }) {
10166: $lonid_to_ip{$id} = $ip;
10167: }
10168: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 10169: }
1.869 albertel 10170: &Apache::lonnet::do_cache_new('iphost','iphost',
10171: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 10172: 48*60*60);
1.869 albertel 10173:
1.847 albertel 10174: return %iphost;
1.598 albertel 10175: }
10176:
1.992 raeburn 10177: #
10178: # Given a DNS returns the loncapa host name for that DNS
10179: #
10180: sub host_from_dns {
10181: my ($dns) = @_;
10182: my @hosts;
10183: my $ip;
10184:
1.993 raeburn 10185: if (exists($name_to_ip{$dns})) {
1.992 raeburn 10186: $ip = $name_to_ip{$dns};
10187: }
10188: if (!$ip) {
10189: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
10190: if (length($ip) == 4) {
10191: $ip = &IO::Socket::inet_ntoa($ip);
10192: }
10193: }
10194: if ($ip) {
10195: @hosts = get_hosts_from_ip($ip);
10196: return $hosts[0];
10197: }
10198: return undef;
1.986 foxr 10199: }
1.992 raeburn 10200:
1.1074 raeburn 10201: sub get_internet_names {
10202: my ($lonid) = @_;
10203: return if ($lonid eq '');
10204: my ($idnref,$cached)=
10205: &Apache::lonnet::is_cached_new('internetnames',$lonid);
10206: if ($cached) {
10207: return $idnref;
10208: }
10209: my $ip = &get_host_ip($lonid);
10210: my @hosts = &get_hosts_from_ip($ip);
10211: my %iphost = &get_iphost();
10212: my (@idns,%seen);
10213: foreach my $id (@hosts) {
10214: my $dom = &host_domain($id);
10215: my $prim_id = &domain($dom,'primary');
10216: my $prim_ip = &get_host_ip($prim_id);
10217: next if ($seen{$prim_ip});
10218: if (ref($iphost{$prim_ip}) eq 'ARRAY') {
10219: foreach my $id (@{$iphost{$prim_ip}}) {
10220: my $intdom = &internet_dom($id);
10221: unless (grep(/^\Q$intdom\E$/,@idns)) {
10222: push(@idns,$intdom);
10223: }
10224: }
10225: }
10226: $seen{$prim_ip} = 1;
10227: }
10228: return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,12*60*60);
10229: }
10230:
1.986 foxr 10231: }
10232:
1.1079 raeburn 10233: sub all_loncaparevs {
10234: return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
10235: }
10236:
1.862 albertel 10237: BEGIN {
10238:
10239: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
10240: unless ($readit) {
10241: {
10242: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
10243: %perlvar = (%perlvar,%{$configvars});
10244: }
10245:
10246:
1.1 albertel 10247: # ------------------------------------------------------ Read spare server file
10248: {
1.448 albertel 10249: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 10250:
10251: while (my $configline=<$config>) {
10252: chomp($configline);
1.284 matthew 10253: if ($configline) {
1.784 albertel 10254: my ($host,$type) = split(':',$configline,2);
1.785 albertel 10255: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 10256: push(@{ $spareid{$type} }, $host);
1.1 albertel 10257: }
10258: }
1.448 albertel 10259: close($config);
1.1 albertel 10260: }
1.11 www 10261: # ------------------------------------------------------------ Read permissions
10262: {
1.448 albertel 10263: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 10264:
10265: while (my $configline=<$config>) {
1.448 albertel 10266: chomp($configline);
10267: if ($configline) {
10268: my ($role,$perm)=split(/ /,$configline);
10269: if ($perm ne '') { $pr{$role}=$perm; }
10270: }
1.11 www 10271: }
1.448 albertel 10272: close($config);
1.11 www 10273: }
10274:
10275: # -------------------------------------------- Read plain texts for permissions
10276: {
1.448 albertel 10277: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 10278:
10279: while (my $configline=<$config>) {
1.448 albertel 10280: chomp($configline);
10281: if ($configline) {
1.742 raeburn 10282: my ($short,@plain)=split(/:/,$configline);
10283: %{$prp{$short}} = ();
10284: if (@plain > 0) {
10285: $prp{$short}{'std'} = $plain[0];
10286: for (my $i=1; $i<@plain; $i++) {
10287: $prp{$short}{'alt'.$i} = $plain[$i];
10288: }
10289: }
1.448 albertel 10290: }
1.135 www 10291: }
1.448 albertel 10292: close($config);
1.135 www 10293: }
10294:
10295: # ---------------------------------------------------------- Read package table
10296: {
1.448 albertel 10297: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 10298:
10299: while (my $configline=<$config>) {
1.483 albertel 10300: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 10301: chomp($configline);
10302: my ($short,$plain)=split(/:/,$configline);
10303: my ($pack,$name)=split(/\&/,$short);
10304: if ($plain ne '') {
10305: $packagetab{$pack.'&'.$name.'&name'}=$name;
10306: $packagetab{$short}=$plain;
10307: }
1.11 www 10308: }
1.448 albertel 10309: close($config);
1.329 matthew 10310: }
10311:
1.1073 raeburn 10312: # ---------------------------------------------------------- Read loncaparev table
10313: {
10314: if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
10315: if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
10316: while (my $configline=<$config>) {
10317: chomp($configline);
10318: my ($hostid,$loncaparev)=split(/:/,$configline);
10319: $loncaparevs{$hostid}=$loncaparev;
10320: }
10321: close($config);
10322: }
10323: }
10324: }
10325:
1.1074 raeburn 10326: # ---------------------------------------------------------- Read serverhostID table
10327: {
10328: if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
10329: if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
10330: while (my $configline=<$config>) {
10331: chomp($configline);
10332: my ($name,$id)=split(/:/,$configline);
10333: $serverhomeIDs{$name}=$id;
10334: }
10335: close($config);
10336: }
10337: }
10338: }
10339:
1.1079 raeburn 10340: {
10341: my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
10342: if (-e $file) {
10343: my $parser = HTML::LCParser->new($file);
10344: while (my $token = $parser->get_token()) {
10345: if ($token->[0] eq 'S') {
10346: my $item = $token->[1];
10347: my $name = $token->[2]{'name'};
10348: my $value = $token->[2]{'value'};
10349: if ($item ne '' && $name ne '' && $value ne '') {
10350: my $release = $parser->get_text();
10351: $release =~ s/(^\s*|\s*$ )//gx;
10352: $needsrelease{$item.':'.$name.':'.$value} = $release;
10353: }
10354: }
10355: }
10356: }
1.1073 raeburn 10357: }
10358:
1.329 matthew 10359: # ------------- set up temporary directory
10360: {
10361: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
10362:
1.11 www 10363: }
10364:
1.794 albertel 10365: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
10366: 'compress_threshold'=> 20_000,
10367: });
1.185 www 10368:
1.281 www 10369: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 10370: $dumpcount=0;
1.958 www 10371: $locknum=0;
1.22 www 10372:
1.163 harris41 10373: &logtouch();
1.672 albertel 10374: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 10375: $readit=1;
1.564 albertel 10376: {
10377: use integer;
10378: my $test=(2**32)+1;
1.568 albertel 10379: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 10380: &logthis(" Detected 64bit platform ($_64bit)");
10381: }
1.195 www 10382: }
1.1 albertel 10383: }
1.179 www 10384:
1.1 albertel 10385: 1;
1.191 harris41 10386: __END__
10387:
1.243 albertel 10388: =pod
10389:
1.191 harris41 10390: =head1 NAME
10391:
1.243 albertel 10392: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 10393:
10394: =head1 SYNOPSIS
10395:
1.243 albertel 10396: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 10397:
10398: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
10399:
1.243 albertel 10400: Common parameters:
10401:
10402: =over 4
10403:
10404: =item *
10405:
10406: $uname : an internal username (if $cname expecting a course Id specifically)
10407:
10408: =item *
10409:
10410: $udom : a domain (if $cdom expecting a course's domain specifically)
10411:
10412: =item *
10413:
10414: $symb : a resource instance identifier
10415:
10416: =item *
10417:
10418: $namespace : the name of a .db file that contains the data needed or
10419: being set.
10420:
10421: =back
10422:
1.394 bowersj2 10423: =head1 OVERVIEW
1.191 harris41 10424:
1.394 bowersj2 10425: lonnet provides subroutines which interact with the
10426: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
10427: about classes, users, and resources.
1.243 albertel 10428:
10429: For many of these objects you can also use this to store data about
10430: them or modify them in various ways.
1.191 harris41 10431:
1.394 bowersj2 10432: =head2 Symbs
1.191 harris41 10433:
1.394 bowersj2 10434: To identify a specific instance of a resource, LON-CAPA uses symbols
10435: or "symbs"X<symb>. These identifiers are built from the URL of the
10436: map, the resource number of the resource in the map, and the URL of
10437: the resource itself. The latter is somewhat redundant, but might help
10438: if maps change.
10439:
10440: An example is
10441:
10442: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
10443:
10444: The respective map entry is
10445:
10446: <resource id="19" src="/res/msu/korte/tests/part12.problem"
10447: title="Problem 2">
10448: </resource>
10449:
10450: Symbs are used by the random number generator, as well as to store and
10451: restore data specific to a certain instance of for example a problem.
10452:
10453: =head2 Storing And Retrieving Data
10454:
10455: X<store()>X<cstore()>X<restore()>Three of the most important functions
10456: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
10457: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
10458: is is the non-critical message twin of cstore. These functions are for
10459: handlers to store a perl hash to a user's permanent data space in an
10460: easy manner, and to retrieve it again on another call. It is expected
10461: that a handler would use this once at the beginning to retrieve data,
10462: and then again once at the end to send only the new data back.
10463:
10464: The data is stored in the user's data directory on the user's
10465: homeserver under the ID of the course.
10466:
10467: The hash that is returned by restore will have all of the previous
10468: value for all of the elements of the hash.
10469:
10470: Example:
10471:
10472: #creating a hash
10473: my %hash;
10474: $hash{'foo'}='bar';
10475:
10476: #storing it
10477: &Apache::lonnet::cstore(\%hash);
10478:
10479: #changing a value
10480: $hash{'foo'}='notbar';
10481:
10482: #adding a new value
10483: $hash{'bar'}='foo';
10484: &Apache::lonnet::cstore(\%hash);
10485:
10486: #retrieving the hash
10487: my %history=&Apache::lonnet::restore();
10488:
10489: #print the hash
10490: foreach my $key (sort(keys(%history))) {
10491: print("\%history{$key} = $history{$key}");
10492: }
10493:
10494: Will print out:
1.191 harris41 10495:
1.394 bowersj2 10496: %history{1:foo} = bar
10497: %history{1:keys} = foo:timestamp
10498: %history{1:timestamp} = 990455579
10499: %history{2:bar} = foo
10500: %history{2:foo} = notbar
10501: %history{2:keys} = foo:bar:timestamp
10502: %history{2:timestamp} = 990455580
10503: %history{bar} = foo
10504: %history{foo} = notbar
10505: %history{timestamp} = 990455580
10506: %history{version} = 2
10507:
10508: Note that the special hash entries C<keys>, C<version> and
10509: C<timestamp> were added to the hash. C<version> will be equal to the
10510: total number of versions of the data that have been stored. The
10511: C<timestamp> attribute will be the UNIX time the hash was
10512: stored. C<keys> is available in every historical section to list which
10513: keys were added or changed at a specific historical revision of a
10514: hash.
10515:
10516: B<Warning>: do not store the hash that restore returns directly. This
10517: will cause a mess since it will restore the historical keys as if the
10518: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 10519:
1.394 bowersj2 10520: Calling convention:
1.191 harris41 10521:
1.394 bowersj2 10522: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
10523: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 10524:
1.394 bowersj2 10525: For more detailed information, see lonnet specific documentation.
1.191 harris41 10526:
1.394 bowersj2 10527: =head1 RETURN MESSAGES
1.191 harris41 10528:
1.394 bowersj2 10529: =over 4
1.191 harris41 10530:
1.394 bowersj2 10531: =item * B<con_lost>: unable to contact remote host
1.191 harris41 10532:
1.394 bowersj2 10533: =item * B<con_delayed>: unable to contact remote host, message will be delivered
10534: when the connection is brought back up
1.191 harris41 10535:
1.394 bowersj2 10536: =item * B<con_failed>: unable to contact remote host and unable to save message
10537: for later delivery
1.191 harris41 10538:
1.967 bisitz 10539: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 10540:
1.394 bowersj2 10541: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 10542: that was requested
1.191 harris41 10543:
1.243 albertel 10544: =back
1.191 harris41 10545:
1.243 albertel 10546: =head1 PUBLIC SUBROUTINES
1.191 harris41 10547:
1.243 albertel 10548: =head2 Session Environment Functions
1.191 harris41 10549:
1.243 albertel 10550: =over 4
1.191 harris41 10551:
1.394 bowersj2 10552: =item *
10553: X<appenv()>
1.949 raeburn 10554: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 10555: the user envirnoment file, and will be restored for each access this
1.620 albertel 10556: user makes during this session, also modifies the %env for the current
1.949 raeburn 10557: process. Optional rolesarrayref - if defined contains a reference to an array
10558: of roles which are exempt from the restriction on modifying user.role entries
10559: in the user's environment.db and in %env.
1.191 harris41 10560:
10561: =item *
1.394 bowersj2 10562: X<delenv()>
1.987 raeburn 10563: B<delenv($delthis,$regexp)>: removes all items from the session
10564: environment file that begin with $delthis. If the
10565: optional second arg - $regexp - is true, $delthis is treated as a
10566: regular expression, otherwise \Q$delthis\E is used.
10567: The values are also deleted from the current processes %env.
1.191 harris41 10568:
1.795 albertel 10569: =item * get_env_multiple($name)
10570:
10571: gets $name from the %env hash, it seemlessly handles the cases where multiple
10572: values may be defined and end up as an array ref.
10573:
10574: returns an array of values
10575:
1.243 albertel 10576: =back
10577:
10578: =head2 User Information
1.191 harris41 10579:
1.243 albertel 10580: =over 4
1.191 harris41 10581:
10582: =item *
1.394 bowersj2 10583: X<queryauthenticate()>
10584: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 10585: authentication scheme
10586:
10587: =item *
1.394 bowersj2 10588: X<authenticate()>
1.1073 raeburn 10589: B<authenticate($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)>: try to
1.394 bowersj2 10590: authenticate user from domain's lib servers (first use the current
10591: one). C<$upass> should be the users password.
1.1073 raeburn 10592: $checkdefauth is optional (value is 1 if a check should be made to
10593: authenticate user using default authentication method, and allow
10594: account creation if username does not have account in the domain).
10595: $clientcancheckhost is optional (value is 1 if checking whether the
10596: server can host will occur on the client side in lonauth.pm).
1.191 harris41 10597:
10598: =item *
1.394 bowersj2 10599: X<homeserver()>
10600: B<homeserver($uname,$udom)>: find the server which has
10601: the user's directory and files (there must be only one), this caches
10602: the answer, and also caches if there is a borken connection.
1.191 harris41 10603:
10604: =item *
1.394 bowersj2 10605: X<idget()>
10606: B<idget($udom,@ids)>: find the usernames behind a list of IDs
10607: (IDs are a unique resource in a domain, there must be only 1 ID per
10608: username, and only 1 username per ID in a specific domain) (returns
10609: hash: id=>name,id=>name)
1.191 harris41 10610:
10611: =item *
1.394 bowersj2 10612: X<idrget()>
10613: B<idrget($udom,@unames)>: find the IDs behind a list of
10614: usernames (returns hash: name=>id,name=>id)
1.191 harris41 10615:
10616: =item *
1.394 bowersj2 10617: X<idput()>
10618: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 10619:
10620: =item *
1.394 bowersj2 10621: X<rolesinit()>
10622: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 10623:
10624: =item *
1.551 albertel 10625: X<getsection()>
10626: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 10627: course $cname, return section name/number or '' for "not in course"
10628: and '-1' for "no section"
10629:
10630: =item *
1.394 bowersj2 10631: X<userenvironment()>
10632: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 10633: passed in @what from the requested user's environment, returns a hash
10634:
1.858 raeburn 10635: =item *
10636: X<userlog_query()>
1.859 albertel 10637: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
10638: activity.log file. %filters defines filters applied when parsing the
10639: log file. These can be start or end timestamps, or the type of action
10640: - log to look for Login or Logout events, check for Checkin or
10641: Checkout, role for role selection. The response is in the form
10642: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
10643: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 10644:
1.243 albertel 10645: =back
10646:
10647: =head2 User Roles
10648:
10649: =over 4
10650:
10651: =item *
10652:
1.810 raeburn 10653: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 10654: F: full access
10655: U,I,K: authentication modes (cxx only)
10656: '': forbidden
10657: 1: user needs to choose course
10658: 2: browse allowed
1.766 albertel 10659: A: passphrase authentication needed
1.243 albertel 10660:
10661: =item *
10662:
10663: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
10664: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
10665: and course level
10666:
10667: =item *
10668:
1.988 raeburn 10669: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
10670: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 10671: $type is Course (default) or Community.
1.988 raeburn 10672: If $forcedefault evaluates to true, text returned will be default
10673: text for $type. Otherwise, if this is a course, the text returned
10674: will be a custom name for the role (if defined in the course's
10675: environment). If no custom name is defined the default is returned.
10676:
1.832 raeburn 10677: =item *
10678:
1.935 raeburn 10679: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 10680: All arguments are optional. Returns a hash of a roles, either for
10681: co-author/assistant author roles for a user's Construction Space
1.906 albertel 10682: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 10683: In the hash, keys are set to colon-separated $uname,$udom,$role, and
10684: (optionally) if $withsec is true, a fourth colon-separated item - $section.
10685: For each key, value is set to colon-separated start and end times for
10686: the role. If no username and domain are specified, will default to
1.934 raeburn 10687: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 10688: of role statuses (active, future or previous), roles
10689: (e.g., cc,in, st etc.) and domains of the roles which can be used
10690: to restrict the list of roles reported. If no array ref is
10691: provided for types, will default to return only active roles.
1.834 albertel 10692:
1.243 albertel 10693: =back
10694:
10695: =head2 User Modification
10696:
10697: =over 4
10698:
10699: =item *
10700:
1.957 raeburn 10701: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 10702: user for the level given by URL. Optional start and end dates (leave empty
10703: string or zero for "no date")
1.191 harris41 10704:
10705: =item *
10706:
1.243 albertel 10707: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
10708: change a users, password, possible return values are: ok,
10709: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
10710: refused
1.191 harris41 10711:
10712: =item *
10713:
1.243 albertel 10714: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 10715:
10716: =item *
10717:
1.1058 raeburn 10718: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last, $gene,
10719: $forceid,$desiredhome,$email,$inststatus,$candelete) :
10720:
10721: will update user information (firstname,middlename,lastname,generation,
10722: permanentemail), and if forceid is true, student/employee ID also.
10723: A user's institutional affiliation(s) can also be updated.
10724: User information fields will not be overwritten with empty entries
10725: unless the field is included in the $candelete array reference.
10726: This array is included when a single user is modified via "Manage Users",
10727: or when Autoupdate.pl is run by cron in a domain.
1.191 harris41 10728:
10729: =item *
10730:
1.286 matthew 10731: modifystudent
10732:
1.957 raeburn 10733: modify a student's enrollment and identification information.
1.286 matthew 10734: The course id is resolved based on the current users environment.
10735: This means the envoking user must be a course coordinator or otherwise
10736: associated with a course.
10737:
1.297 matthew 10738: This call is essentially a wrapper for lonnet::modifyuser and
10739: lonnet::modify_student_enrollment
1.286 matthew 10740:
10741: Inputs:
10742:
10743: =over 4
10744:
1.957 raeburn 10745: =item B<$udom> Student's loncapa domain
1.286 matthew 10746:
1.957 raeburn 10747: =item B<$uname> Student's loncapa login name
1.286 matthew 10748:
1.964 bisitz 10749: =item B<$uid> Student/Employee ID
1.286 matthew 10750:
1.957 raeburn 10751: =item B<$umode> Student's authentication mode
1.286 matthew 10752:
1.957 raeburn 10753: =item B<$upass> Student's password
1.286 matthew 10754:
1.957 raeburn 10755: =item B<$first> Student's first name
1.286 matthew 10756:
1.957 raeburn 10757: =item B<$middle> Student's middle name
1.286 matthew 10758:
1.957 raeburn 10759: =item B<$last> Student's last name
1.286 matthew 10760:
1.957 raeburn 10761: =item B<$gene> Student's generation
1.286 matthew 10762:
1.957 raeburn 10763: =item B<$usec> Student's section in course
1.286 matthew 10764:
10765: =item B<$end> Unix time of the roles expiration
10766:
10767: =item B<$start> Unix time of the roles start date
10768:
10769: =item B<$forceid> If defined, allow $uid to be changed
10770:
10771: =item B<$desiredhome> server to use as home server for student
10772:
1.957 raeburn 10773: =item B<$email> Student's permanent e-mail address
10774:
10775: =item B<$type> Type of enrollment (auto or manual)
10776:
1.963 raeburn 10777: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
10778:
10779: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 10780:
1.963 raeburn 10781: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 10782:
1.963 raeburn 10783: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 10784:
1.963 raeburn 10785: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 10786:
1.286 matthew 10787: =back
1.297 matthew 10788:
10789: =item *
10790:
10791: modify_student_enrollment
10792:
10793: Change a students enrollment status in a class. The environment variable
10794: 'role.request.course' must be defined for this function to proceed.
10795:
10796: Inputs:
10797:
10798: =over 4
10799:
10800: =item $udom, students domain
10801:
10802: =item $uname, students name
10803:
10804: =item $uid, students user id
10805:
10806: =item $first, students first name
10807:
10808: =item $middle
10809:
10810: =item $last
10811:
10812: =item $gene
10813:
10814: =item $usec
10815:
10816: =item $end
10817:
10818: =item $start
10819:
1.957 raeburn 10820: =item $type
10821:
10822: =item $locktype
10823:
10824: =item $cid
10825:
10826: =item $selfenroll
10827:
10828: =item $context
10829:
1.297 matthew 10830: =back
10831:
1.191 harris41 10832:
10833: =item *
10834:
1.243 albertel 10835: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
10836: custom role; give a custom role to a user for the level given by URL. Specify
10837: name and domain of role author, and role name
1.191 harris41 10838:
10839: =item *
10840:
1.243 albertel 10841: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 10842:
10843: =item *
10844:
1.243 albertel 10845: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
10846:
10847: =back
10848:
10849: =head2 Course Infomation
10850:
10851: =over 4
1.191 harris41 10852:
10853: =item *
10854:
1.631 albertel 10855: coursedescription($courseid) : returns a hash of information about the
10856: specified course id, including all environment settings for the
10857: course, the description of the course will be in the hash under the
10858: key 'description'
1.191 harris41 10859:
10860: =item *
10861:
1.624 albertel 10862: resdata($name,$domain,$type,@which) : request for current parameter
10863: setting for a specific $type, where $type is either 'course' or 'user',
10864: @what should be a list of parameters to ask about. This routine caches
10865: answers for 5 minutes.
1.243 albertel 10866:
1.877 foxr 10867: =item *
10868:
10869: get_courseresdata($courseid, $domain) : dump the entire course resource
10870: data base, returning a hash that is keyed by the resource name and has
10871: values that are the resource value. I believe that the timestamps and
10872: versions are also returned.
10873:
10874:
1.243 albertel 10875: =back
10876:
10877: =head2 Course Modification
10878:
10879: =over 4
1.191 harris41 10880:
10881: =item *
10882:
1.243 albertel 10883: writecoursepref($courseid,%prefs) : write preferences (environment
10884: database) for a course
1.191 harris41 10885:
10886: =item *
10887:
1.1011 raeburn 10888: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
10889:
10890: =item *
10891:
1.1038 raeburn 10892: generate_coursenum($udom,$crstype) : get a unique (unused) course number in domain $udom for course type $crstype (Course or Community).
1.243 albertel 10893:
10894: =back
10895:
10896: =head2 Resource Subroutines
10897:
10898: =over 4
1.191 harris41 10899:
10900: =item *
10901:
1.243 albertel 10902: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 10903:
10904: =item *
10905:
1.243 albertel 10906: repcopy($filename) : subscribes to the requested file, and attempts to
10907: replicate from the owning library server, Might return
1.607 raeburn 10908: 'unavailable', 'not_found', 'forbidden', 'ok', or
10909: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 10910: resource. Expects the local filesystem pathname
10911: (/home/httpd/html/res/....)
10912:
10913: =back
10914:
10915: =head2 Resource Information
10916:
10917: =over 4
1.191 harris41 10918:
10919: =item *
10920:
1.243 albertel 10921: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
10922: a vairety of different possible values, $varname should be a request
10923: string, and the other parameters can be used to specify who and what
10924: one is asking about.
10925:
10926: Possible values for $varname are environment.lastname (or other item
10927: from the envirnment hash), user.name (or someother aspect about the
10928: user), resource.0.maxtries (or some other part and parameter of a
10929: resource)
1.204 albertel 10930:
10931: =item *
10932:
1.243 albertel 10933: directcondval($number) : get current value of a condition; reads from a state
10934: string
1.204 albertel 10935:
10936: =item *
10937:
1.243 albertel 10938: condval($condidx) : value of condition index based on state
1.204 albertel 10939:
10940: =item *
10941:
1.243 albertel 10942: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
10943: resource's metadata, $what should be either a specific key, or either
10944: 'keys' (to get a list of possible keys) or 'packages' to get a list of
10945: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
10946:
10947: this function automatically caches all requests
1.191 harris41 10948:
10949: =item *
10950:
1.243 albertel 10951: metadata_query($query,$custom,$customshow) : make a metadata query against the
10952: network of library servers; returns file handle of where SQL and regex results
10953: will be stored for query
1.191 harris41 10954:
10955: =item *
10956:
1.243 albertel 10957: symbread($filename) : return symbolic list entry (filename argument optional);
10958: returns the data handle
1.191 harris41 10959:
10960: =item *
10961:
1.243 albertel 10962: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 10963: a possible symb for the URL in $thisfn, and if is an encryypted
10964: resource that the user accessed using /enc/ returns a 1 on success, 0
10965: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 10966: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 10967:
1.191 harris41 10968:
10969: =item *
10970:
1.243 albertel 10971: symbclean($symb) : removes versions numbers from a symb, returns the
10972: cleaned symb
1.191 harris41 10973:
10974: =item *
10975:
1.243 albertel 10976: is_on_map($uri) : checks if the $uri is somewhere on the current
10977: course map, user must be in a course for it to work.
1.191 harris41 10978:
10979: =item *
10980:
1.243 albertel 10981: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 10982:
10983: =item *
10984:
1.243 albertel 10985: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
10986: a random seed, all arguments are optional, if they aren't sent it uses the
10987: environment to derive them. Note: if symb isn't sent and it can't get one
10988: from &symbread it will use the current time as its return value
1.191 harris41 10989:
10990: =item *
10991:
1.243 albertel 10992: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
10993: unfakeable, receipt
1.191 harris41 10994:
10995: =item *
10996:
1.620 albertel 10997: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 10998:
10999: =item *
11000:
1.243 albertel 11001: countacc($url) : count the number of accesses to a given URL
1.191 harris41 11002:
11003: =item *
11004:
1.243 albertel 11005: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 11006:
11007: =item *
11008:
1.243 albertel 11009: checkin($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 $tcrsid)
1.191 harris41 11010:
11011: =item *
11012:
1.243 albertel 11013: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 11014:
11015: =item *
11016:
1.243 albertel 11017: devalidate($symb) : devalidate temporary spreadsheet calculations,
11018: forcing spreadsheet to reevaluate the resource scores next time.
11019:
11020: =back
11021:
11022: =head2 Storing/Retreiving Data
11023:
11024: =over 4
1.191 harris41 11025:
11026: =item *
11027:
1.243 albertel 11028: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
11029: for this url; hashref needs to be given and should be a \%hashname; the
11030: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 11031: be derived from the env
1.191 harris41 11032:
11033: =item *
11034:
1.243 albertel 11035: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
11036: uses critical subroutine
1.191 harris41 11037:
11038: =item *
11039:
1.243 albertel 11040: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
11041: all args are optional
1.191 harris41 11042:
11043: =item *
11044:
1.717 albertel 11045: dumpstore($namespace,$udom,$uname,$regexp,$range) :
11046: dumps the complete (or key matching regexp) namespace into a hash
11047: ($udom, $uname, $regexp, $range are optional) for a namespace that is
11048: normally &store()ed into
11049:
11050: $range should be either an integer '100' (give me the first 100
11051: matching records)
11052: or be two integers sperated by a - with no spaces
11053: '30-50' (give me the 30th through the 50th matching
11054: records)
11055:
11056:
11057: =item *
11058:
11059: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
11060: replaces a &store() version of data with a replacement set of data
11061: for a particular resource in a namespace passed in the $storehash hash
11062: reference
11063:
11064: =item *
11065:
1.243 albertel 11066: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
11067: works very similar to store/cstore, but all data is stored in a
11068: temporary location and can be reset using tmpreset, $storehash should
11069: be a hash reference, returns nothing on success
1.191 harris41 11070:
11071: =item *
11072:
1.243 albertel 11073: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
11074: similar to restore, but all data is stored in a temporary location and
11075: can be reset using tmpreset. Returns a hash of values on success,
11076: error string otherwise.
1.191 harris41 11077:
11078: =item *
11079:
1.243 albertel 11080: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
11081: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 11082:
11083: =item *
11084:
1.243 albertel 11085: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
11086: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 11087:
11088: =item *
11089:
1.243 albertel 11090: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
11091: namesp ($udom and $uname are optional)
1.191 harris41 11092:
11093: =item *
11094:
1.702 albertel 11095: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 11096: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 11097: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 11098:
1.702 albertel 11099: $range should be either an integer '100' (give me the first 100
11100: matching records)
11101: or be two integers sperated by a - with no spaces
11102: '30-50' (give me the 30th through the 50th matching
11103: records)
1.449 matthew 11104: =item *
11105:
11106: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
11107: $store can be a scalar, an array reference, or if the amount to be
11108: incremented is > 1, a hash reference.
11109:
11110: ($udom and $uname are optional)
1.191 harris41 11111:
11112: =item *
11113:
1.243 albertel 11114: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
11115: ($udom and $uname are optional)
1.191 harris41 11116:
11117: =item *
11118:
1.243 albertel 11119: cput($namespace,$storehash,$udom,$uname) : critical put
11120: ($udom and $uname are optional)
1.191 harris41 11121:
11122: =item *
11123:
1.748 albertel 11124: newput($namespace,$storehash,$udom,$uname) :
11125:
11126: Attempts to store the items in the $storehash, but only if they don't
11127: currently exist, if this succeeds you can be certain that you have
11128: successfully created a new key value pair in the $namespace db.
11129:
11130:
11131: Args:
11132: $namespace: name of database to store values to
11133: $storehash: hashref to store to the db
11134: $udom: (optional) domain of user containing the db
11135: $uname: (optional) name of user caontaining the db
11136:
11137: Returns:
11138: 'ok' -> succeeded in storing all keys of $storehash
11139: 'key_exists: <key>' -> failed to anything out of $storehash, as at
11140: least <key> already existed in the db (other
11141: requested keys may also already exist)
1.967 bisitz 11142: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 11143: 'con_lost' -> unable to contact request server
11144: 'refused' -> action was not allowed by remote machine
11145:
11146:
11147: =item *
11148:
1.243 albertel 11149: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
11150: reference filled in from namesp (encrypts the return communication)
11151: ($udom and $uname are optional)
1.191 harris41 11152:
11153: =item *
11154:
1.243 albertel 11155: log($udom,$name,$home,$message) : write to permanent log for user; use
11156: critical subroutine
11157:
1.806 raeburn 11158: =item *
11159:
1.860 raeburn 11160: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
11161: array reference filled in from namespace found in domain level on either
11162: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 11163:
11164: =item *
11165:
1.860 raeburn 11166: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
11167: domain level either on specified domain server ($uhome) or primary domain
11168: server ($udom and $uhome are optional)
1.806 raeburn 11169:
1.943 raeburn 11170: =item *
11171:
11172: get_domain_defaults($target_domain) : returns hash with defaults for
11173: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
11174: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
11175: or localauth), initial password or a kerberos realm, language (e.g., en-us).
11176: Values are retrieved from cache (if current), or from domain's configuration.db
11177: (if available), or lastly from values in lonTabs/dns_domain,tab,
11178: or lonTabs/domain.tab.
11179:
11180: %domdefaults = &get_auth_defaults($target_domain);
11181:
1.243 albertel 11182: =back
11183:
11184: =head2 Network Status Functions
11185:
11186: =over 4
1.191 harris41 11187:
11188: =item *
11189:
11190: dirlist($uri) : return directory list based on URI
11191:
11192: =item *
11193:
1.243 albertel 11194: spareserver() : find server with least workload from spare.tab
11195:
1.986 foxr 11196:
11197: =item *
11198:
11199: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
11200: if there is no corresponding loncapa host.
11201:
1.243 albertel 11202: =back
11203:
1.986 foxr 11204:
1.243 albertel 11205: =head2 Apache Request
11206:
11207: =over 4
1.191 harris41 11208:
11209: =item *
11210:
1.243 albertel 11211: ssi($url,%hash) : server side include, does a complete request cycle on url to
11212: localhost, posts hash
11213:
11214: =back
11215:
11216: =head2 Data to String to Data
11217:
11218: =over 4
1.191 harris41 11219:
11220: =item *
11221:
1.243 albertel 11222: hash2str(%hash) : convert a hash into a string complete with escaping and '='
11223: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 11224:
11225: =item *
11226:
1.243 albertel 11227: hashref2str($hashref) : convert a hashref into a string complete with
11228: escaping and '=' and '&' separators, supports elements that are
11229: arrayrefs and hashrefs
1.191 harris41 11230:
11231: =item *
11232:
1.243 albertel 11233: arrayref2str($arrayref) : convert an arrayref into a string complete
11234: with escaping and '&' separators, supports elements that are arrayrefs
11235: and hashrefs
1.191 harris41 11236:
11237: =item *
11238:
1.243 albertel 11239: str2hash($string) : convert string to hash using unescaping and
11240: splitting on '=' and '&', supports elements that are arrayrefs and
11241: hashrefs
1.191 harris41 11242:
11243: =item *
11244:
1.243 albertel 11245: str2array($string) : convert string to hash using unescaping and
11246: splitting on '&', supports elements that are arrayrefs and hashrefs
11247:
11248: =back
11249:
11250: =head2 Logging Routines
11251:
11252: =over 4
11253:
11254: These routines allow one to make log messages in the lonnet.log and
11255: lonnet.perm logfiles.
1.191 harris41 11256:
11257: =item *
11258:
1.243 albertel 11259: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 11260:
11261: =item *
11262:
1.243 albertel 11263: logthis() : append message to the normal lonnet.log file, it gets
11264: preiodically rolled over and deleted.
1.191 harris41 11265:
11266: =item *
11267:
1.243 albertel 11268: logperm() : append a permanent message to lonnet.perm.log, this log
11269: file never gets deleted by any automated portion of the system, only
11270: messages of critical importance should go in here.
11271:
11272: =back
11273:
11274: =head2 General File Helper Routines
11275:
11276: =over 4
1.191 harris41 11277:
11278: =item *
11279:
1.481 raeburn 11280: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
11281: (a) files in /uploaded
11282: (i) If a local copy of the file exists -
11283: compares modification date of local copy with last-modified date for
11284: definitive version stored on home server for course. If local copy is
11285: stale, requests a new version from the home server and stores it.
11286: If the original has been removed from the home server, then local copy
11287: is unlinked.
11288: (ii) If local copy does not exist -
11289: requests the file from the home server and stores it.
11290:
11291: If $caller is 'uploadrep':
11292: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
11293: for request for files originally uploaded via DOCS.
11294: - returns 'ok' if fresh local copy now available, -1 otherwise.
11295:
11296: Otherwise:
11297: This indicates a call from the content generation phase of the request.
11298: - returns the entire contents of the file or -1.
11299:
11300: (b) files in /res
11301: - returns the entire contents of a file or -1;
11302: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 11303:
1.712 albertel 11304:
11305: =item *
11306:
11307: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
11308: reference
11309:
11310: returns either a stat() list of data about the file or an empty list
11311: if the file doesn't exist or couldn't find out about it (connection
11312: problems or user unknown)
11313:
1.191 harris41 11314: =item *
11315:
1.243 albertel 11316: filelocation($dir,$file) : returns file system location of a file
11317: based on URI; meant to be "fairly clean" absolute reference, $dir is a
11318: directory that relative $file lookups are to looked in ($dir of /a/dir
11319: and a file of ../bob will become /a/bob)
1.191 harris41 11320:
11321: =item *
11322:
11323: hreflocation($dir,$file) : returns file system location or a URL; same as
11324: filelocation except for hrefs
11325:
11326: =item *
11327:
11328: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
11329:
1.243 albertel 11330: =back
11331:
1.608 albertel 11332: =head2 Usererfile file routines (/uploaded*)
11333:
11334: =over 4
11335:
11336: =item *
11337:
11338: userfileupload(): main rotine for putting a file in a user or course's
11339: filespace, arguments are,
11340:
1.620 albertel 11341: formname - required - this is the name of the element in $env where the
1.608 albertel 11342: filename, and the contents of the file to create/modifed exist
1.620 albertel 11343: the filename is in $env{'form.'.$formname.'.filename'} and the
11344: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 11345: coursedoc - if true, store the file in the course of the active role
11346: of the current user
11347: subdir - required - subdirectory to put the file in under ../userfiles/
11348: if undefined, it will be placed in "unknown"
11349:
11350: (This routine calls clean_filename() to remove any dangerous
11351: characters from the filename, and then calls finuserfileupload() to
11352: complete the transaction)
11353:
11354: returns either the url of the uploaded file (/uploaded/....) if successful
11355: and /adm/notfound.html if unsuccessful
11356:
11357: =item *
11358:
11359: clean_filename(): routine for cleaing a filename up for storage in
11360: userfile space, argument is:
11361:
11362: filename - proposed filename
11363:
11364: returns: the new clean filename
11365:
11366: =item *
11367:
11368: finishuserfileupload(): routine that creaes and sends the file to
11369: userspace, probably shouldn't be called directly
11370:
11371: docuname: username or courseid of destination for the file
11372: docudom: domain of user/course of destination for the file
11373: formname: same as for userfileupload()
11374: fname: filename (inculding subdirectories) for the file
11375:
11376: returns either the url of the uploaded file (/uploaded/....) if successful
11377: and /adm/notfound.html if unsuccessful
11378:
11379: =item *
11380:
11381: renameuserfile(): renames an existing userfile to a new name
11382:
11383: Args:
11384: docuname: username or courseid of destination for the file
11385: docudom: domain of user/course of destination for the file
11386: old: current file name (including any subdirs under userfiles)
11387: new: desired file name (including any subdirs under userfiles)
11388:
11389: =item *
11390:
11391: mkdiruserfile(): creates a directory is a userfiles dir
11392:
11393: Args:
11394: docuname: username or courseid of destination for the file
11395: docudom: domain of user/course of destination for the file
11396: dir: dir to create (including any subdirs under userfiles)
11397:
11398: =item *
11399:
11400: removeuserfile(): removes a file that exists in userfiles
11401:
11402: Args:
11403: docuname: username or courseid of destination for the file
11404: docudom: domain of user/course of destination for the file
11405: fname: filname to delete (including any subdirs under userfiles)
11406:
11407: =item *
11408:
11409: removeuploadedurl(): convience function for removeuserfile()
11410:
11411: Args:
11412: url: a full /uploaded/... url to delete
11413:
1.747 albertel 11414: =item *
11415:
11416: get_portfile_permissions():
11417: Args:
11418: domain: domain of user or course contain the portfolio files
11419: user: name of user or num of course contain the portfolio files
11420: Returns:
11421: hashref of a dump of the proper file_permissions.db
11422:
11423:
11424: =item *
11425:
11426: get_access_controls():
11427:
11428: Args:
11429: current_permissions: the hash ref returned from get_portfile_permissions()
11430: group: (optional) the group you want the files associated with
11431: file: (optional) the file you want access info on
11432:
11433: Returns:
1.749 raeburn 11434: a hash (keys are file names) of hashes containing
11435: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
11436: values are XML containing access control settings (see below)
1.747 albertel 11437:
11438: Internal notes:
11439:
1.749 raeburn 11440: access controls are stored in file_permissions.db as key=value pairs.
11441: key -> path to file/file_name\0uniqueID:scope_end_start
11442: where scope -> public,guest,course,group,domains or users.
11443: end -> UNIX time for end of access (0 -> no end date)
11444: start -> UNIX time for start of access
11445:
11446: value -> XML description of access control
11447: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
11448: <start></start>
11449: <end></end>
11450:
11451: <password></password> for scope type = guest
11452:
11453: <domain></domain> for scope type = course or group
11454: <number></number>
11455: <roles id="">
11456: <role></role>
11457: <access></access>
11458: <section></section>
11459: <group></group>
11460: </roles>
11461:
11462: <dom></dom> for scope type = domains
11463:
11464: <users> for scope type = users
11465: <user>
11466: <uname></uname>
11467: <udom></udom>
11468: </user>
11469: </users>
11470: </scope>
11471:
11472: Access data is also aggregated for each file in an additional key=value pair:
11473: key -> path to file/file_name\0accesscontrol
11474: value -> reference to hash
11475: hash contains key = value pairs
11476: where key = uniqueID:scope_end_start
11477: value = UNIX time record was last updated
11478:
11479: Used to improve speed of look-ups of access controls for each file.
11480:
11481: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
11482:
11483: modify_access_controls():
11484:
11485: Modifies access controls for a portfolio file
11486: Args
11487: 1. file name
11488: 2. reference to hash of required changes,
11489: 3. domain
11490: 4. username
11491: where domain,username are the domain of the portfolio owner
11492: (either a user or a course)
11493:
11494: Returns:
11495: 1. result of additions or updates ('ok' or 'error', with error message).
11496: 2. result of deletions ('ok' or 'error', with error message).
11497: 3. reference to hash of any new or updated access controls.
11498: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
11499: key = integer (inbound ID)
11500: value = uniqueID
1.747 albertel 11501:
1.608 albertel 11502: =back
11503:
1.243 albertel 11504: =head2 HTTP Helper Routines
11505:
11506: =over 4
11507:
1.191 harris41 11508: =item *
11509:
11510: escape() : unpack non-word characters into CGI-compatible hex codes
11511:
11512: =item *
11513:
11514: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
11515:
1.243 albertel 11516: =back
11517:
11518: =head1 PRIVATE SUBROUTINES
11519:
11520: =head2 Underlying communication routines (Shouldn't call)
11521:
11522: =over 4
11523:
11524: =item *
11525:
11526: subreply() : tries to pass a message to lonc, returns con_lost if incapable
11527:
11528: =item *
11529:
11530: reply() : uses subreply to send a message to remote machine, logs all failures
11531:
11532: =item *
11533:
11534: critical() : passes a critical message to another server; if cannot
11535: get through then place message in connection buffer directory and
11536: returns con_delayed, if incapable of saving message, returns
11537: con_failed
11538:
11539: =item *
11540:
11541: reconlonc() : tries to reconnect lonc client processes.
11542:
11543: =back
11544:
11545: =head2 Resource Access Logging
11546:
11547: =over 4
11548:
11549: =item *
11550:
11551: flushcourselogs() : flush (save) buffer logs and access logs
11552:
11553: =item *
11554:
11555: courselog($what) : save message for course in hash
11556:
11557: =item *
11558:
11559: courseacclog($what) : save message for course using &courselog(). Perform
11560: special processing for specific resource types (problems, exams, quizzes, etc).
11561:
1.191 harris41 11562: =item *
11563:
11564: goodbye() : flush course logs and log shutting down; it is called in srm.conf
11565: as a PerlChildExitHandler
1.243 albertel 11566:
11567: =back
11568:
11569: =head2 Other
11570:
11571: =over 4
11572:
11573: =item *
11574:
11575: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 11576:
11577: =back
11578:
11579: =cut
1.877 foxr 11580:
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