Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1036
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1036 ! raeburn 4: # $Id: lonnet.pm,v 1.1035 2009/10/24 03:24:25 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
1.968 raeburn 79: $_64bit %env %protocol);
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:
1.977 amueller 102: my $upload_photo_form = 0; #Variable to check when user upload a photo 0=not 1=true
103:
1.619 albertel 104: require Exporter;
105:
106: our @ISA = qw (Exporter);
107: our @EXPORT = qw(%env);
108:
1.449 matthew 109:
1.1 albertel 110: # --------------------------------------------------------------------- Logging
1.729 www 111: {
112: my $logid;
113: sub instructor_log {
1.957 raeburn 114: my ($hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
115: if (($cnum eq '') || ($cdom eq '')) {
116: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
117: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
118: }
1.729 www 119: $logid++;
1.957 raeburn 120: my $now = time();
121: my $id=$now.'00000'.$$.'00000'.$logid;
1.729 www 122: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 123: { $id => {
124: 'exe_uname' => $env{'user.name'},
125: 'exe_udom' => $env{'user.domain'},
1.957 raeburn 126: 'exe_time' => $now,
1.730 www 127: 'exe_ip' => $ENV{'REMOTE_ADDR'},
128: 'delflag' => $delflag,
129: 'logentry' => $storehash,
130: 'uname' => $uname,
131: 'udom' => $udom,
132: }
1.957 raeburn 133: },$cdom,$cnum);
1.729 www 134: }
135: }
1.1 albertel 136:
1.163 harris41 137: sub logtouch {
138: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 139: unless (-e "$execdir/logs/lonnet.log") {
140: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 141: close $fh;
142: }
143: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
144: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
145: }
146:
1.1 albertel 147: sub logthis {
148: my $message=shift;
149: my $execdir=$perlvar{'lonDaemons'};
150: my $now=time;
151: my $local=localtime($now);
1.448 albertel 152: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 153: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
154: print $fh $logstring;
1.448 albertel 155: close($fh);
156: }
1.1 albertel 157: return 1;
158: }
159:
160: sub logperm {
161: my $message=shift;
162: my $execdir=$perlvar{'lonDaemons'};
163: my $now=time;
164: my $local=localtime($now);
1.448 albertel 165: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
166: print $fh "$now:$message:$local\n";
167: close($fh);
168: }
1.1 albertel 169: return 1;
170: }
171:
1.850 albertel 172: sub create_connection {
1.853 albertel 173: my ($hostname,$lonid) = @_;
1.851 albertel 174: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 175: Type => SOCK_STREAM,
176: Timeout => 10);
177: return 0 if (!$client);
1.890 albertel 178: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 179: my $result = <$client>;
180: chomp($result);
181: return 1 if ($result eq 'done');
182: return 0;
183: }
184:
1.983 raeburn 185: sub get_server_timezone {
186: my ($cnum,$cdom) = @_;
187: my $home=&homeserver($cnum,$cdom);
188: if ($home ne 'no_host') {
189: my $cachetime = 24*3600;
190: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
191: if (defined($cached)) {
192: return $timezone;
193: } else {
194: my $timezone = &reply('servertimezone',$home);
195: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
196: }
197: }
198: }
1.850 albertel 199:
1.993 raeburn 200: sub get_server_loncaparev {
201: my ($dom,$lonhost) = @_;
202: if (defined($lonhost)) {
203: if (!defined(&hostname($lonhost))) {
204: undef($lonhost);
205: }
206: }
207: if (!defined($lonhost)) {
208: if (defined(&domain($dom,'primary'))) {
209: $lonhost=&domain($dom,'primary');
210: if ($lonhost eq 'no_host') {
211: undef($lonhost);
212: }
213: }
214: }
215: if (defined($lonhost)) {
216: my $cachetime = 24*3600;
217: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
218: if (defined($cached)) {
219: return $loncaparev;
220: } else {
221: my $loncaparev = &reply('serverloncaparev',$lonhost);
222: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
223: }
224: }
225: }
226:
1.1 albertel 227: # -------------------------------------------------- Non-critical communication
228: sub subreply {
229: my ($cmd,$server)=@_;
1.838 albertel 230: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 231: #
232: # With loncnew process trimming, there's a timing hole between lonc server
233: # process exit and the master server picking up the listen on the AF_UNIX
234: # socket. In that time interval, a lock file will exist:
235:
236: my $lockfile=$peerfile.".lock";
237: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
238: sleep(1);
239: }
240: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 241: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 242: #
1.550 foxr 243: # We'll give the connection a few tries before abandoning it. If
244: # connection is not possible, we'll con_lost back to the client.
245: #
246: my $client;
247: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
248: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
249: Type => SOCK_STREAM,
250: Timeout => 10);
1.869 albertel 251: if ($client) {
1.550 foxr 252: last; # Connected!
1.850 albertel 253: } else {
1.853 albertel 254: &create_connection(&hostname($server),$server);
1.550 foxr 255: }
1.850 albertel 256: sleep(1); # Try again later if failed connection.
1.550 foxr 257: }
258: my $answer;
259: if ($client) {
1.704 albertel 260: print $client "sethost:$server:$cmd\n";
1.550 foxr 261: $answer=<$client>;
262: if (!$answer) { $answer="con_lost"; }
263: chomp($answer);
264: } else {
265: $answer = 'con_lost'; # Failed connection.
266: }
1.1 albertel 267: return $answer;
268: }
269:
270: sub reply {
271: my ($cmd,$server)=@_;
1.838 albertel 272: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 273: my $answer=subreply($cmd,$server);
1.65 www 274: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 275: &logthis("<font color=\"blue\">WARNING:".
1.12 www 276: " $cmd to $server returned $answer</font>");
277: }
1.1 albertel 278: return $answer;
279: }
280:
281: # ----------------------------------------------------------- Send USR1 to lonc
282:
283: sub reconlonc {
1.891 albertel 284: my ($lonid) = @_;
285: my $hostname = &hostname($lonid);
286: if ($lonid) {
287: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
288: if ($hostname && -e $peerfile) {
289: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
290: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
291: Type => SOCK_STREAM,
292: Timeout => 10);
293: if ($client) {
294: print $client ("reset_retries\n");
295: my $answer=<$client>;
296: #reset just this one.
297: }
298: }
299: return;
300: }
301:
1.836 www 302: &logthis("Trying to reconnect lonc");
1.1 albertel 303: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 304: if (open(my $fh,"<$loncfile")) {
1.1 albertel 305: my $loncpid=<$fh>;
306: chomp($loncpid);
307: if (kill 0 => $loncpid) {
308: &logthis("lonc at pid $loncpid responding, sending USR1");
309: kill USR1 => $loncpid;
310: sleep 1;
1.836 www 311: } else {
1.12 www 312: &logthis(
1.672 albertel 313: "<font color=\"blue\">WARNING:".
1.12 www 314: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 315: }
316: } else {
1.836 www 317: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 318: }
319: }
320:
321: # ------------------------------------------------------ Critical communication
1.12 www 322:
1.1 albertel 323: sub critical {
324: my ($cmd,$server)=@_;
1.838 albertel 325: unless (&hostname($server)) {
1.672 albertel 326: &logthis("<font color=\"blue\">WARNING:".
1.89 www 327: " Critical message to unknown server ($server)</font>");
328: return 'no_such_host';
329: }
1.1 albertel 330: my $answer=reply($cmd,$server);
331: if ($answer eq 'con_lost') {
332: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 333: my $answer=reply($cmd,$server);
1.1 albertel 334: if ($answer eq 'con_lost') {
335: my $now=time;
336: my $middlename=$cmd;
1.5 www 337: $middlename=substr($middlename,0,16);
1.1 albertel 338: $middlename=~s/\W//g;
339: my $dfilename=
1.305 www 340: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
341: $dumpcount++;
1.1 albertel 342: {
1.448 albertel 343: my $dfh;
344: if (open($dfh,">$dfilename")) {
345: print $dfh "$cmd\n";
346: close($dfh);
347: }
1.1 albertel 348: }
349: sleep 2;
350: my $wcmd='';
351: {
1.448 albertel 352: my $dfh;
353: if (open($dfh,"<$dfilename")) {
354: $wcmd=<$dfh>;
355: close($dfh);
356: }
1.1 albertel 357: }
358: chomp($wcmd);
1.7 www 359: if ($wcmd eq $cmd) {
1.672 albertel 360: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 361: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 362: &logperm("D:$server:$cmd");
363: return 'con_delayed';
364: } else {
1.672 albertel 365: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 366: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 367: &logperm("F:$server:$cmd");
368: return 'con_failed';
369: }
370: }
371: }
372: return $answer;
1.405 albertel 373: }
374:
1.755 albertel 375: # ------------------------------------------- check if return value is an error
376:
377: sub error {
378: my ($result) = @_;
1.756 albertel 379: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 380: if ($2 == 2) { return undef; }
381: return $1;
382: }
383: return undef;
384: }
385:
1.783 albertel 386: sub convert_and_load_session_env {
387: my ($lonidsdir,$handle)=@_;
388: my @profile;
389: {
1.917 albertel 390: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
391: if (!$opened) {
1.915 albertel 392: return 0;
393: }
1.783 albertel 394: flock($idf,LOCK_SH);
395: @profile=<$idf>;
396: close($idf);
397: }
398: my %temp_env;
399: foreach my $line (@profile) {
1.786 albertel 400: if ($line !~ m/=/) {
401: return 0;
402: }
1.783 albertel 403: chomp($line);
404: my ($envname,$envvalue)=split(/=/,$line,2);
405: $temp_env{&unescape($envname)} = &unescape($envvalue);
406: }
407: unlink("$lonidsdir/$handle.id");
408: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
409: 0640)) {
410: %disk_env = %temp_env;
411: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
412: untie(%disk_env);
413: }
1.786 albertel 414: return 1;
1.783 albertel 415: }
416:
1.374 www 417: # ------------------------------------------- Transfer profile into environment
1.780 albertel 418: my $env_loaded;
419: sub transfer_profile_to_env {
1.788 albertel 420: my ($lonidsdir,$handle,$force_transfer) = @_;
421: if (!$force_transfer && $env_loaded) { return; }
1.374 www 422:
1.720 albertel 423: if (!defined($lonidsdir)) {
424: $lonidsdir = $perlvar{'lonIDsDir'};
425: }
426: if (!defined($handle)) {
427: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
428: }
429:
1.786 albertel 430: my $convert;
431: {
1.917 albertel 432: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
433: if (!$opened) {
1.915 albertel 434: return;
435: }
1.786 albertel 436: flock($idf,LOCK_SH);
437: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
438: &GDBM_READER(),0640)) {
439: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
440: untie(%disk_env);
441: } else {
442: $convert = 1;
443: }
444: }
445: if ($convert) {
446: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
447: &logthis("Failed to load session, or convert session.");
448: }
1.374 www 449: }
1.783 albertel 450:
1.786 albertel 451: my %remove;
1.783 albertel 452: while ( my $envname = each(%env) ) {
1.433 matthew 453: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
454: if ($time < time-300) {
1.783 albertel 455: $remove{$key}++;
1.433 matthew 456: }
457: }
458: }
1.783 albertel 459:
1.619 albertel 460: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 461: $env_loaded=1;
1.783 albertel 462: foreach my $expired_key (keys(%remove)) {
1.433 matthew 463: &delenv($expired_key);
1.374 www 464: }
1.1 albertel 465: }
466:
1.916 albertel 467: # ---------------------------------------------------- Check for valid session
468: sub check_for_valid_session {
469: my ($r) = @_;
470: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
471: my $lonid=$cookies{'lonID'};
472: return undef if (!$lonid);
473:
474: my $handle=&LONCAPA::clean_handle($lonid->value);
475: my $lonidsdir=$r->dir_config('lonIDsDir');
476: return undef if (!-e "$lonidsdir/$handle.id");
477:
1.917 albertel 478: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
479: return undef if (!$opened);
1.916 albertel 480:
481: flock($idf,LOCK_SH);
482: my %disk_env;
483: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
484: &GDBM_READER(),0640)) {
485: return undef;
486: }
487:
488: if (!defined($disk_env{'user.name'})
489: || !defined($disk_env{'user.domain'})) {
490: return undef;
491: }
492: return $handle;
493: }
494:
1.830 albertel 495: sub timed_flock {
496: my ($file,$lock_type) = @_;
497: my $failed=0;
498: eval {
499: local $SIG{__DIE__}='DEFAULT';
500: local $SIG{ALRM}=sub {
501: $failed=1;
502: die("failed lock");
503: };
504: alarm(13);
505: flock($file,$lock_type);
506: alarm(0);
507: };
508: if ($failed) {
509: return undef;
510: } else {
511: return 1;
512: }
513: }
514:
1.5 www 515: # ---------------------------------------------------------- Append Environment
516:
517: sub appenv {
1.949 raeburn 518: my ($newenv,$roles) = @_;
519: if (ref($newenv) eq 'HASH') {
520: foreach my $key (keys(%{$newenv})) {
521: my $refused = 0;
522: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
523: $refused = 1;
524: if (ref($roles) eq 'ARRAY') {
525: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
526: if (grep(/^\Q$role\E$/,@{$roles})) {
527: $refused = 0;
528: }
529: }
530: }
531: if ($refused) {
532: &logthis("<font color=\"blue\">WARNING: ".
533: "Attempt to modify environment ".$key." to ".$newenv->{$key}
534: .'</font>');
535: delete($newenv->{$key});
536: } else {
537: $env{$key}=$newenv->{$key};
538: }
539: }
540: my $opened = open(my $env_file,'+<',$env{'user.environment'});
541: if ($opened
542: && &timed_flock($env_file,LOCK_EX)
543: &&
544: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
545: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
546: while (my ($key,$value) = each(%{$newenv})) {
547: $disk_env{$key} = $value;
548: }
549: untie(%disk_env);
1.35 www 550: }
1.191 harris41 551: }
1.56 www 552: return 'ok';
553: }
554: # ----------------------------------------------------- Delete from Environment
555:
556: sub delenv {
1.987 raeburn 557: my ($delthis,$regexp) = @_;
1.56 www 558: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 559: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 560: "Attempt to delete from environment ".$delthis);
561: return 'error';
562: }
1.917 albertel 563: my $opened = open(my $env_file,'+<',$env{'user.environment'});
564: if ($opened
1.915 albertel 565: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 566: &&
567: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
568: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 569: foreach my $key (keys(%disk_env)) {
1.987 raeburn 570: if ($regexp) {
571: if ($key=~/^$delthis/) {
572: delete($env{$key});
573: delete($disk_env{$key});
574: }
575: } else {
576: if ($key=~/^\Q$delthis\E/) {
577: delete($env{$key});
578: delete($disk_env{$key});
579: }
580: }
1.448 albertel 581: }
1.783 albertel 582: untie(%disk_env);
1.5 www 583: }
584: return 'ok';
1.369 albertel 585: }
586:
1.790 albertel 587: sub get_env_multiple {
588: my ($name) = @_;
589: my @values;
590: if (defined($env{$name})) {
591: # exists is it an array
592: if (ref($env{$name})) {
593: @values=@{ $env{$name} };
594: } else {
595: $values[0]=$env{$name};
596: }
597: }
598: return(@values);
599: }
600:
1.958 www 601: # ------------------------------------------------------------------- Locking
602:
603: sub set_lock {
604: my ($text)=@_;
605: $locknum++;
606: my $id=$$.'-'.$locknum;
607: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
608: 'session.lock.'.$id => $text});
609: return $id;
610: }
611:
612: sub get_locks {
613: my $num=0;
614: my %texts=();
615: foreach my $lock (split(/\,/,$env{'session.locks'})) {
616: if ($lock=~/\w/) {
617: $num++;
618: $texts{$lock}=$env{'session.lock.'.$lock};
619: }
620: }
621: return ($num,%texts);
622: }
623:
624: sub remove_lock {
625: my ($id)=@_;
626: my $newlocks='';
627: foreach my $lock (split(/\,/,$env{'session.locks'})) {
628: if (($lock=~/\w/) && ($lock ne $id)) {
629: $newlocks.=','.$lock;
630: }
631: }
632: &appenv({'session.locks' => $newlocks});
633: &delenv('session.lock.'.$id);
634: }
635:
636: sub remove_all_locks {
637: my $activelocks=$env{'session.locks'};
638: foreach my $lock (split(/\,/,$env{'session.locks'})) {
639: if ($lock=~/\w/) {
640: &remove_lock($lock);
641: }
642: }
643: }
644:
645:
1.369 albertel 646: # ------------------------------------------ Find out current server userload
647: sub userload {
648: my $numusers=0;
649: {
650: opendir(LONIDS,$perlvar{'lonIDsDir'});
651: my $filename;
652: my $curtime=time;
653: while ($filename=readdir(LONIDS)) {
1.925 albertel 654: next if ($filename eq '.' || $filename eq '..');
655: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 656: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 657: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 658: }
659: closedir(LONIDS);
660: }
661: my $userloadpercent=0;
662: my $maxuserload=$perlvar{'lonUserLoadLim'};
663: if ($maxuserload) {
1.371 albertel 664: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 665: }
1.372 albertel 666: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 667: return $userloadpercent;
1.283 www 668: }
669:
670: # ------------------------------------------ Fight off request when overloaded
671:
672: sub overloaderror {
673: my ($r,$checkserver)=@_;
674: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
675: my $loadavg;
676: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 677: open(my $loadfile,'/proc/loadavg');
1.283 www 678: $loadavg=<$loadfile>;
679: $loadavg =~ s/\s.*//g;
1.285 matthew 680: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 681: close($loadfile);
1.283 www 682: } else {
683: $loadavg=&reply('load',$checkserver);
684: }
1.285 matthew 685: my $overload=$loadavg-100;
1.283 www 686: if ($overload>0) {
1.285 matthew 687: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 688: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 689: return 413;
1.283 www 690: }
691: return '';
1.5 www 692: }
1.1 albertel 693:
694: # ------------------------------ Find server with least workload from spare.tab
1.11 www 695:
1.1 albertel 696: sub spareserver {
1.670 albertel 697: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 698: my $spare_server;
1.370 albertel 699: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 700: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
701: : $userloadpercent;
702:
703: foreach my $try_server (@{ $spareid{'primary'} }) {
704: ($spare_server, $lowest_load) =
705: &compare_server_load($try_server, $spare_server, $lowest_load);
706: }
707:
708: my $found_server = ($spare_server ne '' && $lowest_load < 100);
709:
710: if (!$found_server) {
711: foreach my $try_server (@{ $spareid{'default'} }) {
712: ($spare_server, $lowest_load) =
713: &compare_server_load($try_server, $spare_server, $lowest_load);
714: }
715: }
716:
717: if (!$want_server_name) {
1.968 raeburn 718: my $protocol = 'http';
719: if ($protocol{$spare_server} eq 'https') {
720: $protocol = $protocol{$spare_server};
721: }
1.1001 raeburn 722: if (defined($spare_server)) {
723: my $hostname = &hostname($spare_server);
724: if (defined($hostname)) {
725: $spare_server = $protocol.'://'.$hostname;
726: }
727: }
1.784 albertel 728: }
729: return $spare_server;
730: }
731:
732: sub compare_server_load {
733: my ($try_server, $spare_server, $lowest_load) = @_;
734:
735: my $loadans = &reply('load', $try_server);
736: my $userloadans = &reply('userload',$try_server);
737:
738: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
739: next; #didn't get a number from the server
740: }
741:
742: my $load;
743: if ($loadans =~ /\d/) {
744: if ($userloadans =~ /\d/) {
745: #both are numbers, pick the bigger one
746: $load = ($loadans > $userloadans) ? $loadans
747: : $userloadans;
1.411 albertel 748: } else {
1.784 albertel 749: $load = $loadans;
1.411 albertel 750: }
1.784 albertel 751: } else {
752: $load = $userloadans;
753: }
754:
755: if (($load =~ /\d/) && ($load < $lowest_load)) {
756: $spare_server = $try_server;
757: $lowest_load = $load;
1.370 albertel 758: }
1.784 albertel 759: return ($spare_server,$lowest_load);
1.202 matthew 760: }
1.914 albertel 761:
762: # --------------------------- ask offload servers if user already has a session
763: sub find_existing_session {
764: my ($udom,$uname) = @_;
765: foreach my $try_server (@{ $spareid{'primary'} },
766: @{ $spareid{'default'} }) {
767: return $try_server if (&has_user_session($try_server, $udom, $uname));
768: }
769: return;
770: }
771:
772: # -------------------------------- ask if server already has a session for user
773: sub has_user_session {
774: my ($lonid,$udom,$uname) = @_;
775: my $result = &reply(join(':','userhassession',
776: map {&escape($_)} ($udom,$uname)),$lonid);
777: return 1 if ($result eq 'ok');
778:
779: return 0;
780: }
781:
1.202 matthew 782: # --------------------------------------------- Try to change a user's password
783:
784: sub changepass {
1.799 raeburn 785: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 786: $currentpass = &escape($currentpass);
787: $newpass = &escape($newpass);
1.1030 raeburn 788: my $lonhost = $perlvar{'lonHostID'};
789: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context:$lonhost",
1.202 matthew 790: $server);
791: if (! $answer) {
792: &logthis("No reply on password change request to $server ".
793: "by $uname in domain $udom.");
794: } elsif ($answer =~ "^ok") {
795: &logthis("$uname in $udom successfully changed their password ".
796: "on $server.");
797: } elsif ($answer =~ "^pwchange_failure") {
798: &logthis("$uname in $udom was unable to change their password ".
799: "on $server. The action was blocked by either lcpasswd ".
800: "or pwchange");
801: } elsif ($answer =~ "^non_authorized") {
802: &logthis("$uname in $udom did not get their password correct when ".
803: "attempting to change it on $server.");
804: } elsif ($answer =~ "^auth_mode_error") {
805: &logthis("$uname in $udom attempted to change their password despite ".
806: "not being locally or internally authenticated on $server.");
807: } elsif ($answer =~ "^unknown_user") {
808: &logthis("$uname in $udom attempted to change their password ".
809: "on $server but were unable to because $server is not ".
810: "their home server.");
811: } elsif ($answer =~ "^refused") {
812: &logthis("$server refused to change $uname in $udom password because ".
813: "it was sent an unencrypted request to change the password.");
1.1030 raeburn 814: } elsif ($answer =~ "invalid_client") {
815: &logthis("$server refused to change $uname in $udom password because ".
816: "it was a reset by e-mail originating from an invalid server.");
1.202 matthew 817: }
818: return $answer;
1.1 albertel 819: }
820:
1.169 harris41 821: # ----------------------- Try to determine user's current authentication scheme
822:
823: sub queryauthenticate {
824: my ($uname,$udom)=@_;
1.456 albertel 825: my $uhome=&homeserver($uname,$udom);
826: if (!$uhome) {
827: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
828: return 'no_host';
829: }
830: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
831: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
832: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 833: }
1.456 albertel 834: return $answer;
1.169 harris41 835: }
836:
1.1 albertel 837: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 838:
1.1 albertel 839: sub authenticate {
1.952 raeburn 840: my ($uname,$upass,$udom,$checkdefauth)=@_;
1.807 albertel 841: $upass=&escape($upass);
842: $uname= &LONCAPA::clean_username($uname);
1.836 www 843: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 844: my $newhome;
1.836 www 845: if ((!$uhome) || ($uhome eq 'no_host')) {
846: # Maybe the machine was offline and only re-appeared again recently?
847: &reconlonc();
848: # One more
1.952 raeburn 849: $uhome=&homeserver($uname,$udom,1);
850: if (($uhome eq 'no_host') && $checkdefauth) {
851: if (defined(&domain($udom,'primary'))) {
852: $newhome=&domain($udom,'primary');
853: }
854: if ($newhome ne '') {
855: $uhome = $newhome;
856: }
857: }
1.836 www 858: if ((!$uhome) || ($uhome eq 'no_host')) {
859: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 860: return 'no_host';
861: }
1.1 albertel 862: }
1.952 raeburn 863: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth",$uhome);
1.471 albertel 864: if ($answer eq 'authorized') {
1.952 raeburn 865: if ($newhome) {
866: &logthis("User $uname at $udom authorized by $uhome, but needs account");
867: return 'no_account_on_host';
868: } else {
869: &logthis("User $uname at $udom authorized by $uhome");
870: return $uhome;
871: }
1.471 albertel 872: }
873: if ($answer eq 'non_authorized') {
874: &logthis("User $uname at $udom rejected by $uhome");
875: return 'no_host';
1.9 www 876: }
1.471 albertel 877: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 878: return 'no_host';
879: }
880:
881: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 882:
1.599 albertel 883: my %homecache;
1.1 albertel 884: sub homeserver {
1.230 stredwic 885: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 886: my $index="$uname:$udom";
1.426 albertel 887:
1.599 albertel 888: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 889:
890: my %servers = &get_servers($udom,'library');
891: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 892: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 893: exists($badServerCache{$tryserver}));
1.841 albertel 894:
895: my $answer=reply("home:$udom:$uname",$tryserver);
896: if ($answer eq 'found') {
897: delete($badServerCache{$tryserver});
898: return $homecache{$index}=$tryserver;
899: } elsif ($answer eq 'no_host') {
900: $badServerCache{$tryserver}=1;
901: }
1.1 albertel 902: }
903: return 'no_host';
1.70 www 904: }
905:
906: # ------------------------------------- Find the usernames behind a list of IDs
907:
908: sub idget {
909: my ($udom,@ids)=@_;
910: my %returnhash=();
911:
1.841 albertel 912: my %servers = &get_servers($udom,'library');
913: foreach my $tryserver (keys(%servers)) {
914: my $idlist=join('&',@ids);
915: $idlist=~tr/A-Z/a-z/;
916: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
917: my @answer=();
918: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
919: @answer=split(/\&/,$reply);
920: } ;
921: my $i;
922: for ($i=0;$i<=$#ids;$i++) {
923: if ($answer[$i]) {
924: $returnhash{$ids[$i]}=$answer[$i];
925: }
926: }
927: }
1.70 www 928: return %returnhash;
929: }
930:
931: # ------------------------------------- Find the IDs behind a list of usernames
932:
933: sub idrget {
934: my ($udom,@unames)=@_;
935: my %returnhash=();
1.800 albertel 936: foreach my $uname (@unames) {
937: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 938: }
1.70 www 939: return %returnhash;
940: }
941:
942: # ------------------------------- Store away a list of names and associated IDs
943:
944: sub idput {
945: my ($udom,%ids)=@_;
946: my %servers=();
1.800 albertel 947: foreach my $uname (keys(%ids)) {
948: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
949: my $uhom=&homeserver($uname,$udom);
1.70 www 950: if ($uhom ne 'no_host') {
1.800 albertel 951: my $id=&escape($ids{$uname});
1.70 www 952: $id=~tr/A-Z/a-z/;
1.800 albertel 953: my $esc_unam=&escape($uname);
1.70 www 954: if ($servers{$uhom}) {
1.800 albertel 955: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 956: } else {
1.800 albertel 957: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 958: }
959: }
1.191 harris41 960: }
1.800 albertel 961: foreach my $server (keys(%servers)) {
962: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 963: }
1.344 www 964: }
965:
1.1023 raeburn 966: # ------------------------------dump from db file owned by domainconfig user
1.1012 raeburn 967: sub dump_dom {
1.1023 raeburn 968: my ($namespace,$udom,$regexp,$range)=@_;
1.1012 raeburn 969: if (!$udom) {
970: $udom=$env{'user.domain'};
971: }
972: my %returnhash;
1.1023 raeburn 973: if ($udom) {
974: my $uname = &get_domainconfiguser($udom);
975: %returnhash = &dump($namespace,$udom,$uname,$regexp,$range);
1.1012 raeburn 976: }
977: return %returnhash;
978: }
979:
1.1023 raeburn 980: # ------------------------------------------ get items from domain db files
1.806 raeburn 981:
982: sub get_dom {
1.860 raeburn 983: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 984: my $items='';
985: foreach my $item (@$storearr) {
986: $items.=&escape($item).'&';
987: }
988: $items=~s/\&$//;
1.860 raeburn 989: if (!$udom) {
990: $udom=$env{'user.domain'};
991: if (defined(&domain($udom,'primary'))) {
992: $uhome=&domain($udom,'primary');
993: } else {
1.874 albertel 994: undef($uhome);
1.860 raeburn 995: }
996: } else {
997: if (!$uhome) {
998: if (defined(&domain($udom,'primary'))) {
999: $uhome=&domain($udom,'primary');
1000: }
1001: }
1002: }
1003: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1004: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1005: my %returnhash;
1.875 albertel 1006: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1007: return %returnhash;
1008: }
1.806 raeburn 1009: my @pairs=split(/\&/,$rep);
1010: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1011: return @pairs;
1012: }
1013: my $i=0;
1014: foreach my $item (@$storearr) {
1015: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1016: $i++;
1017: }
1018: return %returnhash;
1019: } else {
1.880 banghart 1020: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1021: }
1022: }
1023:
1024: # -------------------------------------------- put items in domain db files
1025:
1026: sub put_dom {
1.860 raeburn 1027: my ($namespace,$storehash,$udom,$uhome)=@_;
1028: if (!$udom) {
1029: $udom=$env{'user.domain'};
1030: if (defined(&domain($udom,'primary'))) {
1031: $uhome=&domain($udom,'primary');
1032: } else {
1.874 albertel 1033: undef($uhome);
1.860 raeburn 1034: }
1035: } else {
1036: if (!$uhome) {
1037: if (defined(&domain($udom,'primary'))) {
1038: $uhome=&domain($udom,'primary');
1039: }
1040: }
1041: }
1042: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1043: my $items='';
1044: foreach my $item (keys(%$storehash)) {
1045: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1046: }
1047: $items=~s/\&$//;
1048: return &reply("putdom:$udom:$namespace:$items",$uhome);
1049: } else {
1.860 raeburn 1050: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1051: }
1052: }
1053:
1.1023 raeburn 1054: # --------------------- newput for items in db file owned by domainconfig user
1.1012 raeburn 1055: sub newput_dom {
1.1023 raeburn 1056: my ($namespace,$storehash,$udom) = @_;
1.1012 raeburn 1057: my $result;
1058: if (!$udom) {
1059: $udom=$env{'user.domain'};
1060: }
1.1023 raeburn 1061: if ($udom) {
1062: my $uname = &get_domainconfiguser($udom);
1063: $result = &newput($namespace,$storehash,$udom,$uname);
1.1012 raeburn 1064: }
1065: return $result;
1066: }
1067:
1.1023 raeburn 1068: # --------------------- delete for items in db file owned by domainconfig user
1.1012 raeburn 1069: sub del_dom {
1.1023 raeburn 1070: my ($namespace,$storearr,$udom)=@_;
1.1012 raeburn 1071: if (ref($storearr) eq 'ARRAY') {
1072: if (!$udom) {
1073: $udom=$env{'user.domain'};
1074: }
1.1023 raeburn 1075: if ($udom) {
1076: my $uname = &get_domainconfiguser($udom);
1077: return &del($namespace,$storearr,$udom,$uname);
1.1012 raeburn 1078: }
1079: }
1080: }
1081:
1.1023 raeburn 1082: # ----------------------------------construct domainconfig user for a domain
1083: sub get_domainconfiguser {
1084: my ($udom) = @_;
1085: return $udom.'-domainconfig';
1086: }
1087:
1.837 raeburn 1088: sub retrieve_inst_usertypes {
1089: my ($udom) = @_;
1090: my (%returnhash,@order);
1.989 raeburn 1091: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1092: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1093: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1094: %returnhash = %{$domdefs{'inststatustypes'}};
1095: @order = @{$domdefs{'inststatusorder'}};
1096: } else {
1097: if (defined(&domain($udom,'primary'))) {
1098: my $uhome=&domain($udom,'primary');
1099: my $rep=&reply("inst_usertypes:$udom",$uhome);
1100: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1101: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1102: return (\%returnhash,\@order);
1103: }
1104: my ($hashitems,$orderitems) = split(/:/,$rep);
1105: my @pairs=split(/\&/,$hashitems);
1106: foreach my $item (@pairs) {
1107: my ($key,$value)=split(/=/,$item,2);
1108: $key = &unescape($key);
1109: next if ($key =~ /^error: 2 /);
1110: $returnhash{$key}=&thaw_unescape($value);
1111: }
1112: my @esc_order = split(/\&/,$orderitems);
1113: foreach my $item (@esc_order) {
1114: push(@order,&unescape($item));
1115: }
1116: } else {
1117: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1118: }
1119: }
1120: return (\%returnhash,\@order);
1121: }
1122:
1.868 raeburn 1123: sub is_domainimage {
1124: my ($url) = @_;
1125: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1126: if (&domain($1) ne '') {
1127: return '1';
1128: }
1129: }
1130: return;
1131: }
1132:
1.899 raeburn 1133: sub inst_directory_query {
1134: my ($srch) = @_;
1135: my $udom = $srch->{'srchdomain'};
1136: my %results;
1137: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1138: my $outcome;
1.899 raeburn 1139: if ($homeserver ne '') {
1.904 albertel 1140: my $queryid=&reply("querysend:instdirsearch:".
1141: &escape($srch->{'srchby'}).':'.
1142: &escape($srch->{'srchterm'}).':'.
1143: &escape($srch->{'srchtype'}),$homeserver);
1144: my $host=&hostname($homeserver);
1145: if ($queryid !~/^\Q$host\E\_/) {
1146: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1147: return;
1148: }
1149: my $response = &get_query_reply($queryid);
1150: my $maxtries = 5;
1151: my $tries = 1;
1152: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1153: $response = &get_query_reply($queryid);
1154: $tries ++;
1155: }
1156:
1157: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1158: if ($response eq 'unavailable') {
1159: $outcome = $response;
1160: } else {
1161: $outcome = 'ok';
1162: my @matches = split(/\n/,$response);
1163: foreach my $match (@matches) {
1164: my ($key,$value) = split(/=/,$match);
1165: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1166: }
1.899 raeburn 1167: }
1168: }
1169: }
1.909 raeburn 1170: return ($outcome,%results);
1.899 raeburn 1171: }
1172:
1173: sub usersearch {
1174: my ($srch) = @_;
1175: my $dom = $srch->{'srchdomain'};
1176: my %results;
1177: my %libserv = &all_library();
1178: my $query = 'usersearch';
1179: foreach my $tryserver (keys(%libserv)) {
1180: if (&host_domain($tryserver) eq $dom) {
1181: my $host=&hostname($tryserver);
1182: my $queryid=
1.911 raeburn 1183: &reply("querysend:".&escape($query).':'.
1184: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1185: &escape($srch->{'srchtype'}).':'.
1186: &escape($srch->{'srchterm'}),$tryserver);
1187: if ($queryid !~/^\Q$host\E\_/) {
1188: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1189: next;
1.899 raeburn 1190: }
1191: my $reply = &get_query_reply($queryid);
1192: my $maxtries = 1;
1193: my $tries = 1;
1194: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1195: $reply = &get_query_reply($queryid);
1196: $tries ++;
1197: }
1198: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1199: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1200: } else {
1.911 raeburn 1201: my @matches;
1202: if ($reply =~ /\n/) {
1203: @matches = split(/\n/,$reply);
1204: } else {
1205: @matches = split(/\&/,$reply);
1206: }
1.899 raeburn 1207: foreach my $match (@matches) {
1208: my ($uname,$udom,%userhash);
1.911 raeburn 1209: foreach my $entry (split(/:/,$match)) {
1210: my ($key,$value) =
1211: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1212: $userhash{$key} = $value;
1213: if ($key eq 'username') {
1214: $uname = $value;
1215: } elsif ($key eq 'domain') {
1216: $udom = $value;
1.911 raeburn 1217: }
1.899 raeburn 1218: }
1219: $results{$uname.':'.$udom} = \%userhash;
1220: }
1221: }
1222: }
1223: }
1224: return %results;
1225: }
1226:
1.912 raeburn 1227: sub get_instuser {
1228: my ($udom,$uname,$id) = @_;
1229: my $homeserver = &domain($udom,'primary');
1230: my ($outcome,%results);
1231: if ($homeserver ne '') {
1232: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1233: &escape($id).':'.&escape($udom),$homeserver);
1234: my $host=&hostname($homeserver);
1235: if ($queryid !~/^\Q$host\E\_/) {
1236: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1237: return;
1238: }
1239: my $response = &get_query_reply($queryid);
1240: my $maxtries = 5;
1241: my $tries = 1;
1242: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1243: $response = &get_query_reply($queryid);
1244: $tries ++;
1245: }
1246: if (!&error($response) && $response ne 'refused') {
1247: if ($response eq 'unavailable') {
1248: $outcome = $response;
1249: } else {
1250: $outcome = 'ok';
1251: my @matches = split(/\n/,$response);
1252: foreach my $match (@matches) {
1253: my ($key,$value) = split(/=/,$match);
1254: $results{&unescape($key)} = &thaw_unescape($value);
1255: }
1256: }
1257: }
1258: }
1259: my %userinfo;
1260: if (ref($results{$uname}) eq 'HASH') {
1261: %userinfo = %{$results{$uname}};
1262: }
1263: return ($outcome,%userinfo);
1264: }
1265:
1266: sub inst_rulecheck {
1.923 raeburn 1267: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1268: my %returnhash;
1269: if ($udom ne '') {
1270: if (ref($rules) eq 'ARRAY') {
1271: @{$rules} = map {&escape($_);} (@{$rules});
1272: my $rulestr = join(':',@{$rules});
1273: my $homeserver=&domain($udom,'primary');
1274: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1275: my $response;
1276: if ($item eq 'username') {
1277: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1278: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1279: $homeserver));
1.923 raeburn 1280: } elsif ($item eq 'id') {
1281: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1282: ':'.&escape($id).':'.$rulestr,
1283: $homeserver));
1.945 raeburn 1284: } elsif ($item eq 'selfcreate') {
1285: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1286: &escape($udom).':'.&escape($uname).
1287: ':'.$rulestr,$homeserver));
1.923 raeburn 1288: }
1.912 raeburn 1289: if ($response ne 'refused') {
1290: my @pairs=split(/\&/,$response);
1291: foreach my $item (@pairs) {
1292: my ($key,$value)=split(/=/,$item,2);
1293: $key = &unescape($key);
1294: next if ($key =~ /^error: 2 /);
1295: $returnhash{$key}=&thaw_unescape($value);
1296: }
1297: }
1298: }
1299: }
1300: }
1301: return %returnhash;
1302: }
1303:
1304: sub inst_userrules {
1.923 raeburn 1305: my ($udom,$check) = @_;
1.912 raeburn 1306: my (%ruleshash,@ruleorder);
1307: if ($udom ne '') {
1308: my $homeserver=&domain($udom,'primary');
1309: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1310: my $response;
1311: if ($check eq 'id') {
1312: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1313: $homeserver);
1.943 raeburn 1314: } elsif ($check eq 'email') {
1315: $response=&reply('instemailrules:'.&escape($udom),
1316: $homeserver);
1.923 raeburn 1317: } else {
1318: $response=&reply('instuserrules:'.&escape($udom),
1319: $homeserver);
1320: }
1.912 raeburn 1321: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1322: ($response ne 'unknown_cmd') &&
1.912 raeburn 1323: ($response ne 'no_such_host')) {
1324: my ($hashitems,$orderitems) = split(/:/,$response);
1325: my @pairs=split(/\&/,$hashitems);
1326: foreach my $item (@pairs) {
1327: my ($key,$value)=split(/=/,$item,2);
1328: $key = &unescape($key);
1329: next if ($key =~ /^error: 2 /);
1330: $ruleshash{$key}=&thaw_unescape($value);
1331: }
1332: my @esc_order = split(/\&/,$orderitems);
1333: foreach my $item (@esc_order) {
1334: push(@ruleorder,&unescape($item));
1335: }
1336: }
1337: }
1338: }
1339: return (\%ruleshash,\@ruleorder);
1340: }
1341:
1.976 raeburn 1342: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1343:
1344: sub get_domain_defaults {
1345: my ($domain) = @_;
1346: my $cachetime = 60*60*24;
1347: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1348: if (defined($cached)) {
1349: if (ref($result) eq 'HASH') {
1350: return %{$result};
1351: }
1352: }
1353: my %domdefaults;
1354: my %domconfig =
1.989 raeburn 1355: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1356: 'requestcourses','inststatus'],$domain);
1.943 raeburn 1357: if (ref($domconfig{'defaults'}) eq 'HASH') {
1358: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1359: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1360: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1361: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1362: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.943 raeburn 1363: } else {
1364: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1365: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1366: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1367: }
1.976 raeburn 1368: if (ref($domconfig{'quotas'}) eq 'HASH') {
1369: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1370: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1371: } else {
1372: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1373: }
1374: my @usertools = ('aboutme','blog','portfolio');
1375: foreach my $item (@usertools) {
1376: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1377: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1378: }
1379: }
1380: }
1.985 raeburn 1381: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1382: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1383: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1384: }
1385: }
1.989 raeburn 1386: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1387: foreach my $item ('inststatustypes','inststatusorder') {
1388: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1389: }
1390: }
1.943 raeburn 1391: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1392: $cachetime);
1393: return %domdefaults;
1394: }
1395:
1.344 www 1396: # --------------------------------------------------- Assign a key to a student
1397:
1398: sub assign_access_key {
1.364 www 1399: #
1400: # a valid key looks like uname:udom#comments
1401: # comments are being appended
1402: #
1.498 www 1403: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1404: $kdom=
1.620 albertel 1405: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1406: $knum=
1.620 albertel 1407: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1408: $cdom=
1.620 albertel 1409: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1410: $cnum=
1.620 albertel 1411: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1412: $udom=$env{'user.name'} unless (defined($udom));
1413: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1414: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1415: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1416: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1417: # assigned to this person
1418: # - this should not happen,
1.345 www 1419: # unless something went wrong
1420: # the first time around
1421: # ready to assign
1.364 www 1422: $logentry=$1.'; '.$logentry;
1.496 www 1423: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1424: $kdom,$knum) eq 'ok') {
1.345 www 1425: # key now belongs to user
1.346 www 1426: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1427: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1428: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1429: return 'ok';
1430: } else {
1431: return
1432: 'error: Count not permanently assign key, will need to be re-entered later.';
1433: }
1434: } else {
1435: return 'error: Could not assign key, try again later.';
1436: }
1.364 www 1437: } elsif (!$existing{$ckey}) {
1.345 www 1438: # the key does not exist
1439: return 'error: The key does not exist';
1440: } else {
1441: # the key is somebody else's
1442: return 'error: The key is already in use';
1443: }
1.344 www 1444: }
1445:
1.364 www 1446: # ------------------------------------------ put an additional comment on a key
1447:
1448: sub comment_access_key {
1449: #
1450: # a valid key looks like uname:udom#comments
1451: # comments are being appended
1452: #
1453: my ($ckey,$cdom,$cnum,$logentry)=@_;
1454: $cdom=
1.620 albertel 1455: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1456: $cnum=
1.620 albertel 1457: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1458: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1459: if ($existing{$ckey}) {
1460: $existing{$ckey}.='; '.$logentry;
1461: # ready to assign
1.367 www 1462: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1463: $cdom,$cnum) eq 'ok') {
1464: return 'ok';
1465: } else {
1466: return 'error: Count not store comment.';
1467: }
1468: } else {
1469: # the key does not exist
1470: return 'error: The key does not exist';
1471: }
1472: }
1473:
1.344 www 1474: # ------------------------------------------------------ Generate a set of keys
1475:
1476: sub generate_access_keys {
1.364 www 1477: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1478: $cdom=
1.620 albertel 1479: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1480: $cnum=
1.620 albertel 1481: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1482: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1483: unless (($cdom) && ($cnum)) { return 0; }
1484: if ($number>10000) { return 0; }
1485: sleep(2); # make sure don't get same seed twice
1486: srand(time()^($$+($$<<15))); # from "Programming Perl"
1487: my $total=0;
1488: for (my $i=1;$i<=$number;$i++) {
1489: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1490: sprintf("%lx",int(100000*rand)).'-'.
1491: sprintf("%lx",int(100000*rand));
1492: $newkey=~s/1/g/g; # folks mix up 1 and l
1493: $newkey=~s/0/h/g; # and also 0 and O
1494: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1495: if ($existing{$newkey}) {
1496: $i--;
1497: } else {
1.364 www 1498: if (&put('accesskeys',
1499: { $newkey => '# generated '.localtime().
1.620 albertel 1500: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1501: '; '.$logentry },
1502: $cdom,$cnum) eq 'ok') {
1.344 www 1503: $total++;
1504: }
1505: }
1506: }
1.620 albertel 1507: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1508: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1509: return $total;
1510: }
1511:
1512: # ------------------------------------------------------- Validate an accesskey
1513:
1514: sub validate_access_key {
1515: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1516: $cdom=
1.620 albertel 1517: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1518: $cnum=
1.620 albertel 1519: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1520: $udom=$env{'user.domain'} unless (defined($udom));
1521: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1522: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1523: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1524: }
1525:
1526: # ------------------------------------- Find the section of student in a course
1.652 albertel 1527: sub devalidate_getsection_cache {
1528: my ($udom,$unam,$courseid)=@_;
1529: my $hashid="$udom:$unam:$courseid";
1530: &devalidate_cache_new('getsection',$hashid);
1531: }
1.298 matthew 1532:
1.815 albertel 1533: sub courseid_to_courseurl {
1534: my ($courseid) = @_;
1535: #already url style courseid
1536: return $courseid if ($courseid =~ m{^/});
1537:
1538: if (exists($env{'course.'.$courseid.'.num'})) {
1539: my $cnum = $env{'course.'.$courseid.'.num'};
1540: my $cdom = $env{'course.'.$courseid.'.domain'};
1541: return "/$cdom/$cnum";
1542: }
1543:
1544: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1545: if (exists($courseinfo{'num'})) {
1546: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1547: }
1548:
1549: return undef;
1550: }
1551:
1.298 matthew 1552: sub getsection {
1553: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1554: my $cachetime=1800;
1.551 albertel 1555:
1556: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1557: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1558: if (defined($cached)) { return $result; }
1559:
1.298 matthew 1560: my %Pending;
1561: my %Expired;
1562: #
1563: # Each role can either have not started yet (pending), be active,
1564: # or have expired.
1565: #
1566: # If there is an active role, we are done.
1567: #
1568: # If there is more than one role which has not started yet,
1569: # choose the one which will start sooner
1570: # If there is one role which has not started yet, return it.
1571: #
1572: # If there is more than one expired role, choose the one which ended last.
1573: # If there is a role which has expired, return it.
1574: #
1.815 albertel 1575: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1576: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1577: foreach my $key (keys(%roleshash)) {
1.479 albertel 1578: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1579: my $section=$1;
1580: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1581: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1582: my $now=time;
1.548 albertel 1583: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1584: $Expired{$end}=$section;
1585: next;
1586: }
1.548 albertel 1587: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1588: $Pending{$start}=$section;
1589: next;
1590: }
1.599 albertel 1591: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1592: }
1593: #
1594: # Presumedly there will be few matching roles from the above
1595: # loop and the sorting time will be negligible.
1596: if (scalar(keys(%Pending))) {
1597: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1598: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1599: }
1600: if (scalar(keys(%Expired))) {
1601: my @sorted = sort {$a <=> $b} keys(%Expired);
1602: my $time = pop(@sorted);
1.599 albertel 1603: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1604: }
1.599 albertel 1605: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1606: }
1.70 www 1607:
1.599 albertel 1608: sub save_cache {
1609: &purge_remembered();
1.722 albertel 1610: #&Apache::loncommon::validate_page();
1.620 albertel 1611: undef(%env);
1.780 albertel 1612: undef($env_loaded);
1.599 albertel 1613: }
1.452 albertel 1614:
1.599 albertel 1615: my $to_remember=-1;
1616: my %remembered;
1617: my %accessed;
1618: my $kicks=0;
1619: my $hits=0;
1.849 albertel 1620: sub make_key {
1621: my ($name,$id) = @_;
1.872 albertel 1622: if (length($id) > 65
1623: && length(&escape($id)) > 200) {
1624: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1625: }
1.849 albertel 1626: return &escape($name.':'.$id);
1627: }
1628:
1.599 albertel 1629: sub devalidate_cache_new {
1630: my ($name,$id,$debug) = @_;
1631: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1632: $id=&make_key($name,$id);
1.599 albertel 1633: $memcache->delete($id);
1634: delete($remembered{$id});
1635: delete($accessed{$id});
1636: }
1637:
1638: sub is_cached_new {
1639: my ($name,$id,$debug) = @_;
1.849 albertel 1640: $id=&make_key($name,$id);
1.599 albertel 1641: if (exists($remembered{$id})) {
1642: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1643: $accessed{$id}=[&gettimeofday()];
1644: $hits++;
1645: return ($remembered{$id},1);
1646: }
1647: my $value = $memcache->get($id);
1648: if (!(defined($value))) {
1649: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1650: return (undef,undef);
1.416 albertel 1651: }
1.599 albertel 1652: if ($value eq '__undef__') {
1653: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1654: $value=undef;
1655: }
1656: &make_room($id,$value,$debug);
1657: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1658: return ($value,1);
1659: }
1660:
1661: sub do_cache_new {
1662: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1663: $id=&make_key($name,$id);
1.599 albertel 1664: my $setvalue=$value;
1665: if (!defined($setvalue)) {
1666: $setvalue='__undef__';
1667: }
1.623 albertel 1668: if (!defined($time) ) {
1669: $time=600;
1670: }
1.599 albertel 1671: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1672: my $result = $memcache->set($id,$setvalue,$time);
1673: if (! $result) {
1.872 albertel 1674: &logthis("caching of id -> $id failed");
1.910 albertel 1675: $memcache->disconnect_all();
1.872 albertel 1676: }
1.600 albertel 1677: # need to make a copy of $value
1.919 albertel 1678: &make_room($id,$value,$debug);
1.599 albertel 1679: return $value;
1680: }
1681:
1682: sub make_room {
1683: my ($id,$value,$debug)=@_;
1.919 albertel 1684:
1685: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1686: : $value;
1.599 albertel 1687: if ($to_remember<0) { return; }
1688: $accessed{$id}=[&gettimeofday()];
1689: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1690: my $to_kick;
1691: my $max_time=0;
1692: foreach my $other (keys(%accessed)) {
1693: if (&tv_interval($accessed{$other}) > $max_time) {
1694: $to_kick=$other;
1695: $max_time=&tv_interval($accessed{$other});
1696: }
1697: }
1698: delete($remembered{$to_kick});
1699: delete($accessed{$to_kick});
1700: $kicks++;
1701: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1702: return;
1703: }
1704:
1.599 albertel 1705: sub purge_remembered {
1.604 albertel 1706: #&logthis("Tossing ".scalar(keys(%remembered)));
1707: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1708: undef(%remembered);
1709: undef(%accessed);
1.428 albertel 1710: }
1.70 www 1711: # ------------------------------------- Read an entry from a user's environment
1712:
1713: sub userenvironment {
1714: my ($udom,$unam,@what)=@_;
1.976 raeburn 1715: my $items;
1716: foreach my $item (@what) {
1717: $items.=&escape($item).'&';
1718: }
1719: $items=~s/\&$//;
1.70 www 1720: my %returnhash=();
1.1009 raeburn 1721: my $uhome = &homeserver($unam,$udom);
1722: unless ($uhome eq 'no_host') {
1723: my @answer=split(/\&/,
1724: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1725: my $i;
1726: for ($i=0;$i<=$#what;$i++) {
1727: $returnhash{$what[$i]}=&unescape($answer[$i]);
1728: }
1.70 www 1729: }
1730: return %returnhash;
1.1 albertel 1731: }
1732:
1.617 albertel 1733: # ---------------------------------------------------------- Get a studentphoto
1734: sub studentphoto {
1735: my ($udom,$unam,$ext) = @_;
1736: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1737: if (defined($env{'request.course.id'})) {
1.708 raeburn 1738: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1739: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1740: return(&retrievestudentphoto($udom,$unam,$ext));
1741: } else {
1742: my ($result,$perm_reqd)=
1.707 albertel 1743: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1744: if ($result eq 'ok') {
1745: if (!($perm_reqd eq 'yes')) {
1746: return(&retrievestudentphoto($udom,$unam,$ext));
1747: }
1748: }
1749: }
1750: }
1751: } else {
1752: my ($result,$perm_reqd) =
1.707 albertel 1753: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1754: if ($result eq 'ok') {
1755: if (!($perm_reqd eq 'yes')) {
1756: return(&retrievestudentphoto($udom,$unam,$ext));
1757: }
1758: }
1759: }
1760: return '/adm/lonKaputt/lonlogo_broken.gif';
1761: }
1762:
1763: sub retrievestudentphoto {
1764: my ($udom,$unam,$ext,$type) = @_;
1765: my $home=&Apache::lonnet::homeserver($unam,$udom);
1766: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1767: if ($ret eq 'ok') {
1768: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1769: if ($type eq 'thumbnail') {
1770: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1771: }
1772: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1773: return $tokenurl;
1774: } else {
1775: if ($type eq 'thumbnail') {
1776: return '/adm/lonKaputt/genericstudent_tn.gif';
1777: } else {
1778: return '/adm/lonKaputt/lonlogo_broken.gif';
1779: }
1.617 albertel 1780: }
1781: }
1782:
1.263 www 1783: # -------------------------------------------------------------------- New chat
1784:
1785: sub chatsend {
1.724 raeburn 1786: my ($newentry,$anon,$group)=@_;
1.620 albertel 1787: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1788: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1789: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1790: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1791: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1792: &escape($newentry)).':'.$group,$chome);
1.292 www 1793: }
1794:
1795: # ------------------------------------------ Find current version of a resource
1796:
1797: sub getversion {
1798: my $fname=&clutter(shift);
1799: unless ($fname=~/^\/res\//) { return -1; }
1800: return ¤tversion(&filelocation('',$fname));
1801: }
1802:
1803: sub currentversion {
1804: my $fname=shift;
1.599 albertel 1805: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1806: if (defined($cached)) { return $result; }
1.292 www 1807: my $author=$fname;
1808: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1809: my ($udom,$uname)=split(/\//,$author);
1810: my $home=homeserver($uname,$udom);
1811: if ($home eq 'no_host') {
1812: return -1;
1813: }
1814: my $answer=reply("currentversion:$fname",$home);
1815: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1816: return -1;
1817: }
1.599 albertel 1818: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1819: }
1820:
1.1 albertel 1821: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1822:
1.1 albertel 1823: sub subscribe {
1824: my $fname=shift;
1.761 raeburn 1825: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1826: $fname=~s/[\n\r]//g;
1.1 albertel 1827: my $author=$fname;
1828: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1829: my ($udom,$uname)=split(/\//,$author);
1830: my $home=homeserver($uname,$udom);
1.335 albertel 1831: if ($home eq 'no_host') {
1832: return 'not_found';
1.1 albertel 1833: }
1834: my $answer=reply("sub:$fname",$home);
1.64 www 1835: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1836: $answer.=' by '.$home;
1837: }
1.1 albertel 1838: return $answer;
1839: }
1840:
1.8 www 1841: # -------------------------------------------------------------- Replicate file
1842:
1843: sub repcopy {
1844: my $filename=shift;
1.23 www 1845: $filename=~s/\/+/\//g;
1.607 raeburn 1846: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1847: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1848: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1849: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1850: return &repcopy_userfile($filename);
1851: }
1.532 albertel 1852: $filename=~s/[\n\r]//g;
1.8 www 1853: my $transname="$filename.in.transfer";
1.828 www 1854: # FIXME: this should flock
1.607 raeburn 1855: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1856: my $remoteurl=subscribe($filename);
1.64 www 1857: if ($remoteurl =~ /^con_lost by/) {
1858: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1859: return 'unavailable';
1.8 www 1860: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1861: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1862: return 'not_found';
1.64 www 1863: } elsif ($remoteurl =~ /^rejected by/) {
1864: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1865: return 'forbidden';
1.20 www 1866: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1867: return 'ok';
1.8 www 1868: } else {
1.290 www 1869: my $author=$filename;
1870: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1871: my ($udom,$uname)=split(/\//,$author);
1872: my $home=homeserver($uname,$udom);
1873: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1874: my @parts=split(/\//,$filename);
1875: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1876: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1877: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1878: return 'bad_request';
1.8 www 1879: }
1880: my $count;
1881: for ($count=5;$count<$#parts;$count++) {
1882: $path.="/$parts[$count]";
1883: if ((-e $path)!=1) {
1884: mkdir($path,0777);
1885: }
1886: }
1887: my $ua=new LWP::UserAgent;
1888: my $request=new HTTP::Request('GET',"$remoteurl");
1889: my $response=$ua->request($request,$transname);
1890: if ($response->is_error()) {
1891: unlink($transname);
1892: my $message=$response->status_line;
1.672 albertel 1893: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1894: ." LWP get: $message: $filename</font>");
1.607 raeburn 1895: return 'unavailable';
1.8 www 1896: } else {
1.16 www 1897: if ($remoteurl!~/\.meta$/) {
1898: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1899: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1900: if ($mresponse->is_error()) {
1901: unlink($filename.'.meta');
1902: &logthis(
1.672 albertel 1903: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1904: }
1905: }
1.8 www 1906: rename($transname,$filename);
1.607 raeburn 1907: return 'ok';
1.8 www 1908: }
1.290 www 1909: }
1.8 www 1910: }
1.330 www 1911: }
1912:
1913: # ------------------------------------------------ Get server side include body
1914: sub ssi_body {
1.381 albertel 1915: my ($filelink,%form)=@_;
1.606 matthew 1916: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1917: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1918: }
1.953 www 1919: my $output='';
1920: my $response;
1.980 raeburn 1921: if ($filelink=~/^https?\:/) {
1.954 raeburn 1922: ($output,$response)=&externalssi($filelink);
1.953 www 1923: } else {
1.1004 droeschl 1924: $filelink .= $filelink=~/\?/ ? '&' : '?';
1925: $filelink .= 'inhibitmenu=yes';
1.953 www 1926: ($output,$response)=&ssi($filelink,%form);
1927: }
1.778 albertel 1928: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1929: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 1930: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 1931: if (wantarray) {
1932: return ($output, $response);
1933: } else {
1934: return $output;
1935: }
1.8 www 1936: }
1937:
1.15 www 1938: # --------------------------------------------------------- Server Side Include
1939:
1.782 albertel 1940: sub absolute_url {
1941: my ($host_name) = @_;
1942: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1943: if ($host_name eq '') {
1944: $host_name = $ENV{'SERVER_NAME'};
1945: }
1946: return $protocol.$host_name;
1947: }
1948:
1.942 foxr 1949: #
1950: # Server side include.
1951: # Parameters:
1952: # fn Possibly encrypted resource name/id.
1953: # form Hash that describes how the rendering should be done
1954: # and other things.
1.944 foxr 1955: # Returns:
1.950 raeburn 1956: # Scalar context: The content of the response.
1957: # Array context: 2 element list of the content and the full response object.
1.942 foxr 1958: #
1.15 www 1959: sub ssi {
1960:
1.944 foxr 1961: my ($fn,%form)=@_;
1.15 www 1962: my $ua=new LWP::UserAgent;
1.23 www 1963: my $request;
1.711 albertel 1964:
1965: $form{'no_update_last_known'}=1;
1.895 albertel 1966: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 1967: if (%form) {
1.782 albertel 1968: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 1969: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 1970: } else {
1.782 albertel 1971: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1972: }
1973:
1.15 www 1974: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1975: my $response=$ua->request($request);
1976:
1.944 foxr 1977: if (wantarray) {
1978: return ($response->content, $response);
1979: } else {
1980: return $response->content;
1.942 foxr 1981: }
1.324 www 1982: }
1983:
1984: sub externalssi {
1985: my ($url)=@_;
1986: my $ua=new LWP::UserAgent;
1987: my $request=new HTTP::Request('GET',$url);
1988: my $response=$ua->request($request);
1.954 raeburn 1989: if (wantarray) {
1990: return ($response->content, $response);
1991: } else {
1992: return $response->content;
1993: }
1.15 www 1994: }
1.254 www 1995:
1.492 albertel 1996: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1997:
1998: sub allowuploaded {
1999: my ($srcurl,$url)=@_;
2000: $url=&clutter(&declutter($url));
2001: my $dir=$url;
2002: $dir=~s/\/[^\/]+$//;
2003: my %httpref=();
2004: my $httpurl=&hreflocation('',$url);
2005: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2006: &Apache::lonnet::appenv(\%httpref);
1.254 www 2007: }
1.477 raeburn 2008:
1.478 albertel 2009: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2010: # input: action, courseID, current domain, intended
1.637 raeburn 2011: # path to file, source of file, instruction to parse file for objects,
2012: # ref to hash for embedded objects,
2013: # ref to hash for codebase of java objects.
2014: #
1.485 raeburn 2015: # output: url to file (if action was uploaddoc),
2016: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2017: #
1.478 albertel 2018: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2019: # course.
1.477 raeburn 2020: #
1.478 albertel 2021: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2022: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2023: # course's home server.
1.477 raeburn 2024: #
1.478 albertel 2025: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2026: # be copied from $source (current location) to
2027: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2028: # and will then be copied to
2029: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2030: # course's home server.
1.485 raeburn 2031: #
1.481 raeburn 2032: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2033: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2034: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2035: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2036: # in course's home server.
1.637 raeburn 2037: #
1.477 raeburn 2038:
2039: sub process_coursefile {
1.638 albertel 2040: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 2041: my $fetchresult;
1.638 albertel 2042: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2043: if ($action eq 'propagate') {
1.638 albertel 2044: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2045: $home);
1.481 raeburn 2046: } else {
1.477 raeburn 2047: my $fpath = '';
2048: my $fname = $file;
1.478 albertel 2049: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2050: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2051: my $filepath = &build_filepath($fpath);
1.481 raeburn 2052: if ($action eq 'copy') {
2053: if ($source eq '') {
2054: $fetchresult = 'no source file';
2055: return $fetchresult;
2056: } else {
2057: my $destination = $filepath.'/'.$fname;
2058: rename($source,$destination);
2059: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2060: $home);
1.481 raeburn 2061: }
2062: } elsif ($action eq 'uploaddoc') {
2063: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2064: print $fh $env{'form.'.$source};
1.481 raeburn 2065: close($fh);
1.637 raeburn 2066: if ($parser eq 'parse') {
1.1024 raeburn 2067: my $mm = new File::MMagic;
2068: my $mime_type = $mm->checktype_filename($filepath.'/'.$fname);
2069: if ($mime_type eq 'text/html') {
2070: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
2071: unless ($parse_result eq 'ok') {
2072: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2073: }
1.637 raeburn 2074: }
2075: }
1.477 raeburn 2076: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2077: $home);
1.481 raeburn 2078: if ($fetchresult eq 'ok') {
2079: return '/uploaded/'.$fpath.'/'.$fname;
2080: } else {
2081: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2082: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2083: return '/adm/notfound.html';
2084: }
1.477 raeburn 2085: }
2086: }
1.485 raeburn 2087: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2088: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2089: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2090: }
2091: return $fetchresult;
2092: }
2093:
1.637 raeburn 2094: sub build_filepath {
2095: my ($fpath) = @_;
2096: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2097: unless ($fpath eq '') {
2098: my @parts=split('/',$fpath);
2099: foreach my $part (@parts) {
2100: $filepath.= '/'.$part;
2101: if ((-e $filepath)!=1) {
2102: mkdir($filepath,0777);
2103: }
2104: }
2105: }
2106: return $filepath;
2107: }
2108:
2109: sub store_edited_file {
1.638 albertel 2110: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2111: my $file = $primary_url;
2112: $file =~ s#^/uploaded/$docudom/$docuname/##;
2113: my $fpath = '';
2114: my $fname = $file;
2115: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2116: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2117: my $filepath = &build_filepath($fpath);
2118: open(my $fh,'>'.$filepath.'/'.$fname);
2119: print $fh $content;
2120: close($fh);
1.638 albertel 2121: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2122: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2123: $home);
1.637 raeburn 2124: if ($$fetchresult eq 'ok') {
2125: return '/uploaded/'.$fpath.'/'.$fname;
2126: } else {
1.638 albertel 2127: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2128: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2129: return '/adm/notfound.html';
2130: }
2131: }
2132:
1.531 albertel 2133: sub clean_filename {
1.831 albertel 2134: my ($fname,$args)=@_;
1.315 www 2135: # Replace Windows backslashes by forward slashes
1.257 www 2136: $fname=~s/\\/\//g;
1.831 albertel 2137: if (!$args->{'keep_path'}) {
2138: # Get rid of everything but the actual filename
2139: $fname=~s/^.*\/([^\/]+)$/$1/;
2140: }
1.315 www 2141: # Replace spaces by underscores
2142: $fname=~s/\s+/\_/g;
2143: # Replace all other weird characters by nothing
1.831 albertel 2144: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2145: # Replace all .\d. sequences with _\d. so they no longer look like version
2146: # numbers
2147: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2148: return $fname;
2149: }
1.984 neumanie 2150: #This Function check if a Image max 400px width and height 500px. If not then scale the image down
2151: sub resizeImage {
2152: my($img_url) = @_;
2153: my $ima = Image::Magick->new;
2154: $ima->Read($img_url);
2155: if($ima->Get('width') > 400)
2156: {
2157: my $factor = $ima->Get('width')/400;
2158: $ima->Scale( width=>400, height=>$ima->Get('height')/$factor );
2159: }
2160: if($ima->Get('height') > 500)
2161: {
2162: my $factor = $ima->Get('height')/500;
2163: $ima->Scale( width=>$ima->Get('width')/$factor, height=>500);
2164: }
2165:
2166: $ima->Write($img_url);
2167: }
1.531 albertel 2168:
1.977 amueller 2169: #Wrapper function for userphotoupload
2170: sub userphotoupload
2171: {
2172: my($formname,$subdir) = @_;
2173: $upload_photo_form = 1;
2174: return &userfileupload($formname,undef,$subdir);
2175: }
2176:
1.608 albertel 2177: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2178: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 2179: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 2180: # $coursedoc - if true up to the current course
2181: # if false
2182: # $subdir - directory in userfile to store the file into
1.858 raeburn 2183: # $parser - instruction to parse file for objects ($parser = parse)
2184: # $allfiles - reference to hash for embedded objects
2185: # $codebase - reference to hash for codebase of java objects
2186: # $desuname - username for permanent storage of uploaded file
2187: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2188: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2189: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 2190: #
1.686 albertel 2191: # output: url of file in userspace, or error: <message>
2192: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2193:
2194:
1.531 albertel 2195: sub userfileupload {
1.860 raeburn 2196: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
2197: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 2198: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2199: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2200: $fname=&clean_filename($fname);
1.315 www 2201: # See if there is anything left
1.257 www 2202: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 2203: chop($env{'form.'.$formname});
1.523 raeburn 2204: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
2205: my $now = time;
2206: my $filepath = 'tmp/helprequests/'.$now;
2207: my @parts=split(/\//,$filepath);
2208: my $fullpath = $perlvar{'lonDaemons'};
2209: for (my $i=0;$i<@parts;$i++) {
2210: $fullpath .= '/'.$parts[$i];
2211: if ((-e $fullpath)!=1) {
2212: mkdir($fullpath,0777);
2213: }
2214: }
2215: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 2216: print $fh $env{'form.'.$formname};
1.523 raeburn 2217: close($fh);
1.741 raeburn 2218: return $fullpath.'/'.$fname;
2219: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
2220: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2221: '_'.$env{'user.domain'}.'/pending';
2222: my @parts=split(/\//,$filepath);
2223: my $fullpath = $perlvar{'lonDaemons'};
2224: for (my $i=0;$i<@parts;$i++) {
2225: $fullpath .= '/'.$parts[$i];
2226: if ((-e $fullpath)!=1) {
2227: mkdir($fullpath,0777);
2228: }
2229: }
2230: open(my $fh,'>'.$fullpath.'/'.$fname);
2231: print $fh $env{'form.'.$formname};
2232: close($fh);
2233: return $fullpath.'/'.$fname;
1.523 raeburn 2234: }
1.995 raeburn 2235: if ($subdir eq 'scantron') {
2236: $fname = 'scantron_orig_'.$fname;
2237: } else {
1.258 www 2238: # Create the directory if not present
1.995 raeburn 2239: $fname="$subdir/$fname";
2240: }
1.259 www 2241: if ($coursedoc) {
1.638 albertel 2242: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2243: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2244: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2245: return &finishuserfileupload($docuname,$docudom,
2246: $formname,$fname,$parser,$allfiles,
1.860 raeburn 2247: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 2248: } else {
1.620 albertel 2249: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2250: return &process_coursefile('uploaddoc',$docuname,$docudom,
2251: $fname,$formname,$parser,
2252: $allfiles,$codebase);
1.481 raeburn 2253: }
1.719 banghart 2254: } elsif (defined($destuname)) {
2255: my $docuname=$destuname;
2256: my $docudom=$destudom;
1.860 raeburn 2257: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2258: $parser,$allfiles,$codebase,
2259: $thumbwidth,$thumbheight);
1.719 banghart 2260:
1.259 www 2261: } else {
1.638 albertel 2262: my $docuname=$env{'user.name'};
2263: my $docudom=$env{'user.domain'};
1.714 raeburn 2264: if (exists($env{'form.group'})) {
2265: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2266: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2267: }
1.860 raeburn 2268: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2269: $parser,$allfiles,$codebase,
2270: $thumbwidth,$thumbheight);
1.259 www 2271: }
1.271 www 2272: }
2273:
2274: sub finishuserfileupload {
1.860 raeburn 2275: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
2276: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 2277: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2278: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2279:
1.860 raeburn 2280: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2281: $file=$fname;
2282: if ($fname=~m|/|) {
2283: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2284: $path.=$fnamepath.'/';
2285: }
1.259 www 2286: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2287: my $count;
2288: for ($count=4;$count<=$#parts;$count++) {
2289: $filepath.="/$parts[$count]";
2290: if ((-e $filepath)!=1) {
2291: mkdir($filepath,0777);
2292: }
2293: }
1.984 neumanie 2294:
1.258 www 2295: # Save the file
2296: {
1.701 albertel 2297: if (!open(FH,'>'.$filepath.'/'.$file)) {
2298: &logthis('Failed to create '.$filepath.'/'.$file);
2299: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2300: return '/adm/notfound.html';
2301: }
2302: if (!print FH ($env{'form.'.$formname})) {
2303: &logthis('Failed to write to '.$filepath.'/'.$file);
2304: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2305: return '/adm/notfound.html';
2306: }
1.570 albertel 2307: close(FH);
1.977 amueller 2308: if($upload_photo_form==1)
2309: {
1.984 neumanie 2310: resizeImage($filepath.'/'.$file);
1.977 amueller 2311: $upload_photo_form = 0;
2312: }
1.258 www 2313: }
1.637 raeburn 2314: if ($parser eq 'parse') {
1.1024 raeburn 2315: my $mm = new File::MMagic;
2316: my $mime_type = $mm->checktype_filename($filepath.'/'.$file);
2317: if ($mime_type eq 'text/html') {
2318: my $parse_result = &extract_embedded_items($filepath.'/'.$file,
2319: $allfiles,$codebase);
2320: unless ($parse_result eq 'ok') {
2321: &logthis('Failed to parse '.$filepath.$file.
2322: ' for embedded media: '.$parse_result);
2323: }
1.637 raeburn 2324: }
2325: }
1.860 raeburn 2326: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2327: my $input = $filepath.'/'.$file;
2328: my $output = $filepath.'/'.'tn-'.$file;
2329: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2330: system("convert -sample $thumbsize $input $output");
2331: if (-e $filepath.'/'.'tn-'.$file) {
2332: $fetchthumb = 1;
2333: }
2334: }
1.858 raeburn 2335:
1.259 www 2336: # Notify homeserver to grep it
2337: #
1.984 neumanie 2338: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2339: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2340: if ($fetchresult eq 'ok') {
1.860 raeburn 2341: if ($fetchthumb) {
2342: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2343: if ($thumbresult ne 'ok') {
2344: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2345: $docuhome.': '.$thumbresult);
2346: }
2347: }
1.259 www 2348: #
1.258 www 2349: # Return the URL to it
1.494 albertel 2350: return '/uploaded/'.$path.$file;
1.263 www 2351: } else {
1.494 albertel 2352: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2353: ': '.$fetchresult);
1.263 www 2354: return '/adm/notfound.html';
1.858 raeburn 2355: }
1.493 albertel 2356: }
2357:
1.637 raeburn 2358: sub extract_embedded_items {
1.961 raeburn 2359: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2360: my @state = ();
2361: my %javafiles = (
2362: codebase => '',
2363: code => '',
2364: archive => ''
2365: );
2366: my %mediafiles = (
2367: src => '',
2368: movie => '',
2369: );
1.648 raeburn 2370: my $p;
2371: if ($content) {
2372: $p = HTML::LCParser->new($content);
2373: } else {
1.961 raeburn 2374: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2375: }
1.641 albertel 2376: while (my $t=$p->get_token()) {
1.640 albertel 2377: if ($t->[0] eq 'S') {
2378: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2379: push(@state, $tagname);
1.648 raeburn 2380: if (lc($tagname) eq 'allow') {
2381: &add_filetype($allfiles,$attr->{'src'},'src');
2382: }
1.640 albertel 2383: if (lc($tagname) eq 'img') {
2384: &add_filetype($allfiles,$attr->{'src'},'src');
2385: }
1.886 albertel 2386: if (lc($tagname) eq 'a') {
2387: &add_filetype($allfiles,$attr->{'href'},'href');
2388: }
1.645 raeburn 2389: if (lc($tagname) eq 'script') {
2390: if ($attr->{'archive'} =~ /\.jar$/i) {
2391: &add_filetype($allfiles,$attr->{'archive'},'archive');
2392: } else {
2393: &add_filetype($allfiles,$attr->{'src'},'src');
2394: }
2395: }
2396: if (lc($tagname) eq 'link') {
2397: if (lc($attr->{'rel'}) eq 'stylesheet') {
2398: &add_filetype($allfiles,$attr->{'href'},'href');
2399: }
2400: }
1.640 albertel 2401: if (lc($tagname) eq 'object' ||
2402: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2403: foreach my $item (keys(%javafiles)) {
2404: $javafiles{$item} = '';
2405: }
2406: }
2407: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2408: my $name = lc($attr->{'name'});
2409: foreach my $item (keys(%javafiles)) {
2410: if ($name eq $item) {
2411: $javafiles{$item} = $attr->{'value'};
2412: last;
2413: }
2414: }
2415: foreach my $item (keys(%mediafiles)) {
2416: if ($name eq $item) {
2417: &add_filetype($allfiles, $attr->{'value'}, 'value');
2418: last;
2419: }
2420: }
2421: }
2422: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2423: foreach my $item (keys(%javafiles)) {
2424: if ($attr->{$item}) {
2425: $javafiles{$item} = $attr->{$item};
2426: last;
2427: }
2428: }
2429: foreach my $item (keys(%mediafiles)) {
2430: if ($attr->{$item}) {
2431: &add_filetype($allfiles,$attr->{$item},$item);
2432: last;
2433: }
2434: }
2435: }
2436: } elsif ($t->[0] eq 'E') {
2437: my ($tagname) = ($t->[1]);
2438: if ($javafiles{'codebase'} ne '') {
2439: $javafiles{'codebase'} .= '/';
2440: }
2441: if (lc($tagname) eq 'applet' ||
2442: lc($tagname) eq 'object' ||
2443: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2444: ) {
2445: foreach my $item (keys(%javafiles)) {
2446: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2447: my $file=$javafiles{'codebase'}.$javafiles{$item};
2448: &add_filetype($allfiles,$file,$item);
2449: }
2450: }
2451: }
2452: pop @state;
2453: }
2454: }
1.637 raeburn 2455: return 'ok';
2456: }
2457:
1.639 albertel 2458: sub add_filetype {
2459: my ($allfiles,$file,$type)=@_;
2460: if (exists($allfiles->{$file})) {
2461: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2462: push(@{$allfiles->{$file}}, &escape($type));
2463: }
2464: } else {
2465: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2466: }
2467: }
2468:
1.493 albertel 2469: sub removeuploadedurl {
1.984 neumanie 2470: my ($url)=@_;
2471: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2472: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2473: }
2474:
2475: sub removeuserfile {
2476: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 2477: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2478: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 2479: if ($result eq 'ok') {
1.798 raeburn 2480: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2481: my $metafile = $fname.'.meta';
2482: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2483: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 2484: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2485: my $sqlresult =
1.823 albertel 2486: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2487: 'portfolio_metadata',$group,
2488: 'delete');
1.798 raeburn 2489: }
2490: }
2491: return $result;
1.257 www 2492: }
1.15 www 2493:
1.530 albertel 2494: sub mkdiruserfile {
2495: my ($docuname,$docudom,$dir)=@_;
2496: my $home=&homeserver($docuname,$docudom);
2497: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2498: }
2499:
1.531 albertel 2500: sub renameuserfile {
2501: my ($docuname,$docudom,$old,$new)=@_;
2502: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2503: my $result = &reply("renameuserfile:$docudom:$docuname:".
2504: &escape("$old").':'.&escape("$new"),$home);
2505: if ($result eq 'ok') {
2506: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2507: my $oldmeta = $old.'.meta';
2508: my $newmeta = $new.'.meta';
2509: my $metaresult =
2510: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2511: my $url = "/uploaded/$docudom/$docuname/$old";
2512: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2513: my $sqlresult =
1.823 albertel 2514: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2515: 'portfolio_metadata',$group,
2516: 'delete');
1.798 raeburn 2517: }
2518: }
2519: return $result;
1.531 albertel 2520: }
2521:
1.14 www 2522: # ------------------------------------------------------------------------- Log
2523:
2524: sub log {
2525: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2526: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2527: }
2528:
2529: # ------------------------------------------------------------------ Course Log
1.352 www 2530: #
2531: # This routine flushes several buffers of non-mission-critical nature
2532: #
1.157 www 2533:
2534: sub flushcourselogs {
1.352 www 2535: &logthis('Flushing log buffers');
2536: #
2537: # course logs
2538: # This is a log of all transactions in a course, which can be used
2539: # for data mining purposes
2540: #
2541: # It also collects the courseid database, which lists last transaction
2542: # times and course titles for all courseids
2543: #
2544: my %courseidbuffer=();
1.921 raeburn 2545: foreach my $crsid (keys(%courselogs)) {
1.352 www 2546: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2547: &escape($courselogs{$crsid}),
2548: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2549: delete $courselogs{$crsid};
2550: } else {
2551: &logthis('Failed to flush log buffer for '.$crsid);
2552: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2553: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2554: " exceeded maximum size, deleting.</font>");
2555: delete $courselogs{$crsid};
2556: }
1.352 www 2557: }
1.920 raeburn 2558: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2559: 'description' => $coursedescrbuf{$crsid},
2560: 'inst_code' => $courseinstcodebuf{$crsid},
2561: 'type' => $coursetypebuf{$crsid},
2562: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2563: };
1.191 harris41 2564: }
1.352 www 2565: #
2566: # Write course id database (reverse lookup) to homeserver of courses
2567: # Is used in pickcourse
2568: #
1.840 albertel 2569: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2570: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2571: $courseidbuffer{$crs_home},
2572: $crs_home,'timeonly');
1.352 www 2573: }
2574: #
2575: # File accesses
2576: # Writes to the dynamic metadata of resources to get hit counts, etc.
2577: #
1.449 matthew 2578: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2579: if ($entry =~ /___count$/) {
2580: my ($dom,$name);
1.807 albertel 2581: ($dom,$name,undef)=
1.811 albertel 2582: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2583: if (! defined($dom) || $dom eq '' ||
2584: ! defined($name) || $name eq '') {
1.620 albertel 2585: my $cid = $env{'request.course.id'};
2586: $dom = $env{'request.'.$cid.'.domain'};
2587: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2588: }
1.450 matthew 2589: my $value = $accesshash{$entry};
2590: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2591: my %temphash=($url => $value);
1.449 matthew 2592: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2593: if ($result eq 'ok') {
2594: delete $accesshash{$entry};
2595: } elsif ($result eq 'unknown_cmd') {
2596: # Target server has old code running on it.
1.450 matthew 2597: my %temphash=($entry => $value);
1.449 matthew 2598: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2599: delete $accesshash{$entry};
2600: }
2601: }
2602: } else {
1.811 albertel 2603: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2604: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2605: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2606: delete $accesshash{$entry};
2607: }
1.185 www 2608: }
1.191 harris41 2609: }
1.352 www 2610: #
2611: # Roles
2612: # Reverse lookup of user roles for course faculty/staff and co-authorship
2613: #
1.800 albertel 2614: foreach my $entry (keys(%userrolehash)) {
1.351 www 2615: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2616: split(/\:/,$entry);
2617: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2618: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2619: $rudom,$runame) eq 'ok') {
2620: delete $userrolehash{$entry};
2621: }
2622: }
1.662 raeburn 2623: #
2624: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2625: #
2626: my %domrolebuffer = ();
1.1000 raeburn 2627: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 2628: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2629: if ($domrolebuffer{$rudom}) {
2630: $domrolebuffer{$rudom}.='&'.&escape($entry).
2631: '='.&escape($domainrolehash{$entry});
2632: } else {
2633: $domrolebuffer{$rudom}.=&escape($entry).
2634: '='.&escape($domainrolehash{$entry});
2635: }
2636: delete $domainrolehash{$entry};
2637: }
2638: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2639: my %servers = &get_servers($dom,'library');
2640: foreach my $tryserver (keys(%servers)) {
2641: unless (&reply('domroleput:'.$dom.':'.
2642: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2643: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2644: }
1.662 raeburn 2645: }
2646: }
1.186 www 2647: $dumpcount++;
1.157 www 2648: }
2649:
2650: sub courselog {
2651: my $what=shift;
1.158 www 2652: $what=time.':'.$what;
1.620 albertel 2653: unless ($env{'request.course.id'}) { return ''; }
2654: $coursedombuf{$env{'request.course.id'}}=
2655: $env{'course.'.$env{'request.course.id'}.'.domain'};
2656: $coursenumbuf{$env{'request.course.id'}}=
2657: $env{'course.'.$env{'request.course.id'}.'.num'};
2658: $coursehombuf{$env{'request.course.id'}}=
2659: $env{'course.'.$env{'request.course.id'}.'.home'};
2660: $coursedescrbuf{$env{'request.course.id'}}=
2661: $env{'course.'.$env{'request.course.id'}.'.description'};
2662: $courseinstcodebuf{$env{'request.course.id'}}=
2663: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2664: $courseownerbuf{$env{'request.course.id'}}=
2665: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2666: $coursetypebuf{$env{'request.course.id'}}=
2667: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2668: if (defined $courselogs{$env{'request.course.id'}}) {
2669: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2670: } else {
1.620 albertel 2671: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2672: }
1.620 albertel 2673: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2674: &flushcourselogs();
2675: }
1.158 www 2676: }
2677:
2678: sub courseacclog {
2679: my $fnsymb=shift;
1.620 albertel 2680: unless ($env{'request.course.id'}) { return ''; }
2681: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2682: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2683: $what.=':POST';
1.583 matthew 2684: # FIXME: Probably ought to escape things....
1.800 albertel 2685: foreach my $key (keys(%env)) {
2686: if ($key=~/^form\.(.*)/) {
1.975 raeburn 2687: my $formitem = $1;
2688: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
2689: $what.=':'.$formitem.'='.$env{$key};
2690: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
2691: $what.=':'.$formitem.'='.$env{$key};
2692: }
1.158 www 2693: }
1.191 harris41 2694: }
1.583 matthew 2695: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2696: # FIXME: We should not be depending on a form parameter that someone
2697: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2698: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2699: $what.= ':POST';
2700: # FIXME: Probably ought to escape things....
2701: foreach my $element ('courseexp','crsfulltext','crsrelated',
2702: 'crsdiscuss') {
1.620 albertel 2703: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2704: }
2705: }
1.158 www 2706: }
2707: &courselog($what);
1.149 www 2708: }
2709:
1.185 www 2710: sub countacc {
2711: my $url=&declutter(shift);
1.458 matthew 2712: return if (! defined($url) || $url eq '');
1.620 albertel 2713: unless ($env{'request.course.id'}) { return ''; }
2714: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2715: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2716: $accesshash{$key}++;
1.185 www 2717: }
1.349 www 2718:
1.361 www 2719: sub linklog {
2720: my ($from,$to)=@_;
2721: $from=&declutter($from);
2722: $to=&declutter($to);
2723: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2724: $accesshash{$to.'___'.$from.'___goto'}=1;
2725: }
2726:
1.349 www 2727: sub userrolelog {
2728: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2729: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2730: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2731: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2732: ($trole=~/^ta/)) {
1.350 www 2733: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2734: $userrolehash
2735: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2736: =$tend.':'.$tstart;
1.662 raeburn 2737: }
1.898 albertel 2738: if (($env{'request.role'} =~ /dc\./) &&
2739: (($trole=~/^au/) || ($trole=~/^in/) ||
2740: ($trole=~/^cc/) || ($trole=~/^ep/) ||
2741: ($trole=~/^cr/) || ($trole=~/^ta/))) {
2742: $userrolehash
2743: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2744: =$tend.':'.$tstart;
2745: }
1.662 raeburn 2746: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2747: ($trole=~/^li/) || ($trole=~/^li/) ||
2748: ($trole=~/^au/) || ($trole=~/^dg/) ||
2749: ($trole=~/^sc/)) {
2750: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2751: $domainrolehash
2752: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2753: = $tend.':'.$tstart;
2754: }
1.351 www 2755: }
2756:
1.957 raeburn 2757: sub courserolelog {
2758: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
2759: if (($trole eq 'cc') || ($trole eq 'in') ||
2760: ($trole eq 'ep') || ($trole eq 'ad') ||
2761: ($trole eq 'ta') || ($trole eq 'st') ||
2762: ($trole=~/^cr/) || ($trole eq 'gr')) {
2763: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
2764: my $cdom = $1;
2765: my $cnum = $2;
2766: my $sec = $3;
2767: my $namespace = 'rolelog';
2768: my %storehash = (
2769: role => $trole,
2770: start => $tstart,
2771: end => $tend,
2772: selfenroll => $selfenroll,
2773: context => $context,
2774: );
2775: if ($trole eq 'gr') {
2776: $namespace = 'groupslog';
2777: $storehash{'group'} = $sec;
2778: } else {
2779: $storehash{'section'} = $sec;
2780: }
2781: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
1.996 raeburn 2782: if (($trole ne 'st') || ($sec ne '')) {
2783: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
2784: }
1.957 raeburn 2785: }
2786: }
2787: return;
2788: }
2789:
1.351 www 2790: sub get_course_adv_roles {
1.948 raeburn 2791: my ($cid,$codes) = @_;
1.620 albertel 2792: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2793: my %coursehash=&coursedescription($cid);
1.988 raeburn 2794: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 2795: my %nothide=();
1.800 albertel 2796: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 2797: if ($user !~ /:/) {
2798: $nothide{join(':',split(/[\@]/,$user))}=1;
2799: } else {
2800: $nothide{$user}=1;
2801: }
1.470 www 2802: }
1.351 www 2803: my %returnhash=();
2804: my %dumphash=
2805: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2806: my $now=time;
1.997 raeburn 2807: my %privileged;
1.1000 raeburn 2808: foreach my $entry (keys(%dumphash)) {
1.800 albertel 2809: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2810: if (($tstart) && ($tstart<0)) { next; }
2811: if (($tend) && ($tend<$now)) { next; }
2812: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2813: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2814: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 2815: unless (ref($privileged{$domain}) eq 'HASH') {
2816: my %dompersonnel =
1.998 raeburn 2817: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 2818: $privileged{$domain} = {};
2819: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 2820: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 2821: foreach my $user (keys(%{$dompersonnel{$server}})) {
2822: my ($trole,$uname,$udom) = split(/:/,$user);
2823: $privileged{$udom}{$uname} = 1;
2824: }
2825: }
2826: }
2827: }
2828: if ((exists($privileged{$domain}{$username})) &&
2829: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2830: if ($role eq 'cr') { next; }
1.948 raeburn 2831: if ($codes) {
2832: if ($section) { $role .= ':'.$section; }
2833: if ($returnhash{$role}) {
2834: $returnhash{$role}.=','.$username.':'.$domain;
2835: } else {
2836: $returnhash{$role}=$username.':'.$domain;
2837: }
1.351 www 2838: } else {
1.988 raeburn 2839: my $key=&plaintext($role,$crstype);
1.973 bisitz 2840: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 2841: if ($returnhash{$key}) {
2842: $returnhash{$key}.=','.$username.':'.$domain;
2843: } else {
2844: $returnhash{$key}=$username.':'.$domain;
2845: }
1.351 www 2846: }
1.948 raeburn 2847: }
1.400 www 2848: return %returnhash;
2849: }
2850:
2851: sub get_my_roles {
1.937 raeburn 2852: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 2853: unless (defined($uname)) { $uname=$env{'user.name'}; }
2854: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 2855: my (%dumphash,%nothide);
1.858 raeburn 2856: if ($context eq 'userroles') {
2857: %dumphash = &dump('roles',$udom,$uname);
2858: } else {
2859: %dumphash=
1.400 www 2860: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 2861: if ($hidepriv) {
2862: my %coursehash=&coursedescription($udom.'_'.$uname);
2863: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2864: if ($user !~ /:/) {
2865: $nothide{join(':',split(/[\@]/,$user))} = 1;
2866: } else {
2867: $nothide{$user} = 1;
2868: }
2869: }
2870: }
1.858 raeburn 2871: }
1.400 www 2872: my %returnhash=();
2873: my $now=time;
1.999 raeburn 2874: my %privileged;
1.800 albertel 2875: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2876: my ($role,$tend,$tstart);
2877: if ($context eq 'userroles') {
2878: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2879: } else {
2880: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2881: }
1.400 www 2882: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2883: my $status = 'active';
1.939 raeburn 2884: if (($tend) && ($tend<=$now)) {
1.832 raeburn 2885: $status = 'previous';
2886: }
2887: if (($tstart) && ($now<$tstart)) {
2888: $status = 'future';
2889: }
2890: if (ref($types) eq 'ARRAY') {
2891: if (!grep(/^\Q$status\E$/,@{$types})) {
2892: next;
2893: }
2894: } else {
2895: if ($status ne 'active') {
2896: next;
2897: }
2898: }
1.867 raeburn 2899: my ($rolecode,$username,$domain,$section,$area);
2900: if ($context eq 'userroles') {
2901: ($area,$rolecode) = split(/_/,$entry);
2902: (undef,$domain,$username,$section) = split(/\//,$area);
2903: } else {
2904: ($role,$username,$domain,$section) = split(/\:/,$entry);
2905: }
1.832 raeburn 2906: if (ref($roledoms) eq 'ARRAY') {
2907: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2908: next;
2909: }
2910: }
2911: if (ref($roles) eq 'ARRAY') {
2912: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 2913: if ($role =~ /^cr\//) {
2914: if (!grep(/^cr$/,@{$roles})) {
2915: next;
2916: }
2917: } else {
2918: next;
2919: }
1.832 raeburn 2920: }
1.867 raeburn 2921: }
1.937 raeburn 2922: if ($hidepriv) {
1.999 raeburn 2923: if ($context eq 'userroles') {
2924: if ((&privileged($username,$domain)) &&
2925: (!$nothide{$username.':'.$domain})) {
2926: next;
2927: }
2928: } else {
2929: unless (ref($privileged{$domain}) eq 'HASH') {
2930: my %dompersonnel =
2931: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
2932: $privileged{$domain} = {};
2933: if (keys(%dompersonnel)) {
2934: foreach my $server (keys(%dompersonnel)) {
2935: if (ref($dompersonnel{$server}) eq 'HASH') {
2936: foreach my $user (keys(%{$dompersonnel{$server}})) {
2937: my ($trole,$uname,$udom) = split(/:/,$user);
2938: $privileged{$udom}{$uname} = $trole;
2939: }
2940: }
2941: }
2942: }
2943: }
2944: if (exists($privileged{$domain}{$username})) {
2945: if (!$nothide{$username.':'.$domain}) {
2946: next;
2947: }
2948: }
1.937 raeburn 2949: }
2950: }
1.933 raeburn 2951: if ($withsec) {
2952: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
2953: $tstart.':'.$tend;
2954: } else {
2955: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
2956: }
1.832 raeburn 2957: }
1.373 www 2958: return %returnhash;
1.399 www 2959: }
2960:
2961: # ----------------------------------------------------- Frontpage Announcements
2962: #
2963: #
2964:
2965: sub postannounce {
2966: my ($server,$text)=@_;
1.844 albertel 2967: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 2968: unless ($text=~/\w/) { $text=''; }
2969: return &reply('setannounce:'.&escape($text),$server);
2970: }
2971:
2972: sub getannounce {
1.448 albertel 2973:
2974: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 2975: my $announcement='';
1.800 albertel 2976: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 2977: close($fh);
1.399 www 2978: if ($announcement=~/\w/) {
2979: return
2980: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 2981: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 2982: } else {
2983: return '';
2984: }
2985: } else {
2986: return '';
2987: }
1.351 www 2988: }
1.353 www 2989:
2990: # ---------------------------------------------------------- Course ID routines
2991: # Deal with domain's nohist_courseid.db files
2992: #
2993:
2994: sub courseidput {
1.921 raeburn 2995: my ($domain,$storehash,$coursehome,$caller) = @_;
2996: my $outcome;
2997: if ($caller eq 'timeonly') {
2998: my $cids = '';
2999: foreach my $item (keys(%$storehash)) {
3000: $cids.=&escape($item).'&';
3001: }
3002: $cids=~s/\&$//;
3003: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
3004: $coursehome);
3005: } else {
3006: my $items = '';
3007: foreach my $item (keys(%$storehash)) {
3008: $items.= &escape($item).'='.
3009: &freeze_escape($$storehash{$item}).'&';
3010: }
3011: $items=~s/\&$//;
3012: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
3013: $coursehome);
1.918 raeburn 3014: }
3015: if ($outcome eq 'unknown_cmd') {
3016: my $what;
3017: foreach my $cid (keys(%$storehash)) {
3018: $what .= &escape($cid).'=';
1.921 raeburn 3019: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 3020: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 3021: }
3022: $what =~ s/\:$/&/;
3023: }
3024: $what =~ s/\&$//;
3025: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
3026: } else {
3027: return $outcome;
3028: }
1.353 www 3029: }
3030:
3031: sub courseiddump {
1.921 raeburn 3032: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 3033: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1029 raeburn 3034: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
3035: $cloneonly,$createdbefore,$createdafter,$creationcontext)=@_;
1.918 raeburn 3036: my $as_hash = 1;
3037: my %returnhash;
3038: if (!$domfilter) { $domfilter=''; }
1.845 albertel 3039: my %libserv = &all_library();
3040: foreach my $tryserver (keys(%libserv)) {
3041: if ( ( $hostidflag == 1
3042: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
3043: || (!defined($hostidflag)) ) {
3044:
1.918 raeburn 3045: if (($domfilter eq '') ||
3046: (&host_domain($tryserver) eq $domfilter)) {
3047: my $rep =
3048: &reply('courseiddump:'.&host_domain($tryserver).':'.
3049: $sincefilter.':'.&escape($descfilter).':'.
3050: &escape($instcodefilter).':'.&escape($ownerfilter).
3051: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 3052: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 3053: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 3054: $showhidden.':'.$caller.':'.&escape($cloner).':'.
1.1029 raeburn 3055: &escape($cc_clone).':'.$cloneonly.':'.
3056: &escape($createdbefore).':'.&escape($createdafter).':'.
3057: &escape($creationcontext),$tryserver);
1.918 raeburn 3058: my @pairs=split(/\&/,$rep);
3059: foreach my $item (@pairs) {
3060: my ($key,$value)=split(/\=/,$item,2);
3061: $key = &unescape($key);
3062: next if ($key =~ /^error: 2 /);
3063: my $result = &thaw_unescape($value);
3064: if (ref($result) eq 'HASH') {
3065: $returnhash{$key}=$result;
3066: } else {
1.921 raeburn 3067: my @responses = split(/:/,$value);
3068: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3069: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3070: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3071: }
1.1008 raeburn 3072: }
1.353 www 3073: }
3074: }
3075: }
3076: }
3077: return %returnhash;
3078: }
3079:
1.658 raeburn 3080: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3081:
3082: sub dcmailput {
1.685 raeburn 3083: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3084: my $status = &Apache::lonnet::critical(
1.740 www 3085: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3086: &escape($message),$server);
1.662 raeburn 3087: return $status;
3088: }
3089:
1.658 raeburn 3090: sub dcmaildump {
3091: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3092: my %returnhash=();
1.846 albertel 3093:
3094: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3095: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3096: &escape($enddate).':';
3097: my @esc_senders=map { &escape($_)} @$senders;
3098: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3099: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3100: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3101: if (($key) && ($value)) {
3102: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3103: }
3104: }
3105: }
3106: return %returnhash;
3107: }
1.662 raeburn 3108: # ---------------------------------------------------------- Domain roles
3109:
3110: sub get_domain_roles {
3111: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 3112: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 3113: $startdate = '.';
3114: }
1.1018 raeburn 3115: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 3116: $enddate = '.';
3117: }
1.922 raeburn 3118: my $rolelist;
3119: if (ref($roles) eq 'ARRAY') {
3120: $rolelist = join(':',@{$roles});
3121: }
1.662 raeburn 3122: my %personnel = ();
1.841 albertel 3123:
3124: my %servers = &get_servers($dom,'library');
3125: foreach my $tryserver (keys(%servers)) {
3126: %{$personnel{$tryserver}}=();
3127: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3128: &escape($startdate).':'.
3129: &escape($enddate).':'.
3130: &escape($rolelist), $tryserver))) {
3131: my ($key,$value) = split(/\=/,$line,2);
3132: if (($key) && ($value)) {
3133: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3134: }
3135: }
1.662 raeburn 3136: }
3137: return %personnel;
3138: }
1.658 raeburn 3139:
1.149 www 3140: # ----------------------------------------------------------- Check out an item
3141:
1.504 albertel 3142: sub get_first_access {
3143: my ($type,$argsymb)=@_;
1.790 albertel 3144: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3145: if ($argsymb) { $symb=$argsymb; }
3146: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 3147: if ($type eq 'course') {
3148: $res='course';
3149: } elsif ($type eq 'map') {
1.588 albertel 3150: $res=&symbread($map);
3151: } else {
3152: $res=$symb;
3153: }
3154: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
3155: return $times{"$courseid\0$res"};
1.504 albertel 3156: }
3157:
3158: sub set_first_access {
3159: my ($type)=@_;
1.790 albertel 3160: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3161: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 3162: if ($type eq 'course') {
3163: $res='course';
3164: } elsif ($type eq 'map') {
1.588 albertel 3165: $res=&symbread($map);
3166: } else {
3167: $res=$symb;
3168: }
3169: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 3170: if (!$firstaccess) {
1.588 albertel 3171: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 3172: }
3173: return 'already_set';
1.504 albertel 3174: }
3175:
1.149 www 3176: sub checkout {
3177: my ($symb,$tuname,$tudom,$tcrsid)=@_;
3178: my $now=time;
3179: my $lonhost=$perlvar{'lonHostID'};
3180: my $infostr=&escape(
1.234 www 3181: 'CHECKOUTTOKEN&'.
1.149 www 3182: $tuname.'&'.
3183: $tudom.'&'.
3184: $tcrsid.'&'.
3185: $symb.'&'.
3186: $now.'&'.$ENV{'REMOTE_ADDR'});
3187: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 3188: if ($token=~/^error\:/) {
1.672 albertel 3189: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3190: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
3191: "</font>");
3192: return '';
3193: }
3194:
1.149 www 3195: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
3196: $token=~tr/a-z/A-Z/;
3197:
1.153 www 3198: my %infohash=('resource.0.outtoken' => $token,
3199: 'resource.0.checkouttime' => $now,
3200: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 3201:
3202: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3203: return '';
1.151 www 3204: } else {
1.672 albertel 3205: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3206: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
3207: "</font>");
1.149 www 3208: }
3209:
3210: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3211: &escape('Checkout '.$infostr.' - '.
3212: $token)) ne 'ok') {
3213: return '';
1.151 www 3214: } else {
1.672 albertel 3215: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3216: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
3217: "</font>");
1.149 www 3218: }
1.151 www 3219: return $token;
1.149 www 3220: }
3221:
3222: # ------------------------------------------------------------ Check in an item
3223:
3224: sub checkin {
3225: my $token=shift;
1.150 www 3226: my $now=time;
3227: my ($ta,$tb,$lonhost)=split(/\*/,$token);
3228: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 3229: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 3230: $dtoken=~s/\W/\_/g;
1.234 www 3231: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 3232: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
3233:
1.154 www 3234: unless (($tuname) && ($tudom)) {
3235: &logthis('Check in '.$token.' ('.$dtoken.') failed');
3236: return '';
3237: }
3238:
3239: unless (&allowed('mgr',$tcrsid)) {
3240: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 3241: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 3242: return '';
3243: }
3244:
1.153 www 3245: my %infohash=('resource.0.intoken' => $token,
3246: 'resource.0.checkintime' => $now,
3247: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 3248:
3249: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3250: return '';
3251: }
3252:
3253: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3254: &escape('Checkin - '.$token)) ne 'ok') {
3255: return '';
3256: }
3257:
3258: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 3259: }
3260:
3261: # --------------------------------------------- Set Expire Date for Spreadsheet
3262:
3263: sub expirespread {
3264: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 3265: my $cid=$env{'request.course.id'};
1.110 www 3266: if ($cid) {
3267: my $now=time;
3268: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3269: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3270: $env{'course.'.$cid.'.num'}.
1.110 www 3271: ':nohist_expirationdates:'.
3272: &escape($key).'='.$now,
1.620 albertel 3273: $env{'course.'.$cid.'.home'})
1.110 www 3274: }
3275: return 'ok';
1.14 www 3276: }
3277:
1.109 www 3278: # ----------------------------------------------------- Devalidate Spreadsheets
3279:
3280: sub devalidate {
1.325 www 3281: my ($symb,$uname,$udom)=@_;
1.620 albertel 3282: my $cid=$env{'request.course.id'};
1.109 www 3283: if ($cid) {
1.391 matthew 3284: # delete the stored spreadsheets for
3285: # - the student level sheet of this user in course's homespace
3286: # - the assessment level sheet for this resource
3287: # for this user in user's homespace
1.553 albertel 3288: # - current conditional state info
1.325 www 3289: my $key=$uname.':'.$udom.':';
1.109 www 3290: my $status=
1.299 matthew 3291: &del('nohist_calculatedsheets',
1.391 matthew 3292: [$key.'studentcalc:'],
1.620 albertel 3293: $env{'course.'.$cid.'.domain'},
3294: $env{'course.'.$cid.'.num'})
1.133 albertel 3295: .' '.
3296: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3297: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3298: unless ($status eq 'ok ok') {
3299: &logthis('Could not devalidate spreadsheet '.
1.325 www 3300: $uname.' at '.$udom.' for '.
1.109 www 3301: $symb.': '.$status);
1.133 albertel 3302: }
1.553 albertel 3303: &delenv('user.state.'.$cid);
1.109 www 3304: }
3305: }
3306:
1.265 albertel 3307: sub get_scalar {
3308: my ($string,$end) = @_;
3309: my $value;
3310: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3311: $value = $1;
3312: } elsif ($$string =~ s/^([^&]*?)&//) {
3313: $value = $1;
3314: }
3315: return &unescape($value);
3316: }
3317:
3318: sub array2str {
3319: my (@array) = @_;
3320: my $result=&arrayref2str(\@array);
3321: $result=~s/^__ARRAY_REF__//;
3322: $result=~s/__END_ARRAY_REF__$//;
3323: return $result;
3324: }
3325:
1.204 albertel 3326: sub arrayref2str {
3327: my ($arrayref) = @_;
1.265 albertel 3328: my $result='__ARRAY_REF__';
1.204 albertel 3329: foreach my $elem (@$arrayref) {
1.265 albertel 3330: if(ref($elem) eq 'ARRAY') {
3331: $result.=&arrayref2str($elem).'&';
3332: } elsif(ref($elem) eq 'HASH') {
3333: $result.=&hashref2str($elem).'&';
3334: } elsif(ref($elem)) {
3335: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3336: } else {
3337: $result.=&escape($elem).'&';
3338: }
3339: }
3340: $result=~s/\&$//;
1.265 albertel 3341: $result .= '__END_ARRAY_REF__';
1.204 albertel 3342: return $result;
3343: }
3344:
1.168 albertel 3345: sub hash2str {
1.204 albertel 3346: my (%hash) = @_;
3347: my $result=&hashref2str(\%hash);
1.265 albertel 3348: $result=~s/^__HASH_REF__//;
3349: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3350: return $result;
3351: }
3352:
3353: sub hashref2str {
3354: my ($hashref)=@_;
1.265 albertel 3355: my $result='__HASH_REF__';
1.800 albertel 3356: foreach my $key (sort(keys(%$hashref))) {
3357: if (ref($key) eq 'ARRAY') {
3358: $result.=&arrayref2str($key).'=';
3359: } elsif (ref($key) eq 'HASH') {
3360: $result.=&hashref2str($key).'=';
3361: } elsif (ref($key)) {
1.265 albertel 3362: $result.='=';
1.800 albertel 3363: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3364: } else {
1.800 albertel 3365: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3366: }
3367:
1.800 albertel 3368: if(ref($hashref->{$key}) eq 'ARRAY') {
3369: $result.=&arrayref2str($hashref->{$key}).'&';
3370: } elsif(ref($hashref->{$key}) eq 'HASH') {
3371: $result.=&hashref2str($hashref->{$key}).'&';
3372: } elsif(ref($hashref->{$key})) {
1.265 albertel 3373: $result.='&';
1.800 albertel 3374: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3375: } else {
1.800 albertel 3376: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3377: }
3378: }
1.168 albertel 3379: $result=~s/\&$//;
1.265 albertel 3380: $result .= '__END_HASH_REF__';
1.168 albertel 3381: return $result;
3382: }
3383:
3384: sub str2hash {
1.265 albertel 3385: my ($string)=@_;
3386: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3387: return %$hash;
3388: }
3389:
3390: sub str2hashref {
1.168 albertel 3391: my ($string) = @_;
1.265 albertel 3392:
3393: my %hash;
3394:
3395: if($string !~ /^__HASH_REF__/) {
3396: if (! ($string eq '' || !defined($string))) {
3397: $hash{'error'}='Not hash reference';
3398: }
3399: return (\%hash, $string);
3400: }
3401:
3402: $string =~ s/^__HASH_REF__//;
3403:
3404: while($string !~ /^__END_HASH_REF__/) {
3405: #key
3406: my $key='';
3407: if($string =~ /^__HASH_REF__/) {
3408: ($key, $string)=&str2hashref($string);
3409: if(defined($key->{'error'})) {
3410: $hash{'error'}='Bad data';
3411: return (\%hash, $string);
3412: }
3413: } elsif($string =~ /^__ARRAY_REF__/) {
3414: ($key, $string)=&str2arrayref($string);
3415: if($key->[0] eq 'Array reference error') {
3416: $hash{'error'}='Bad data';
3417: return (\%hash, $string);
3418: }
3419: } else {
3420: $string =~ s/^(.*?)=//;
1.267 albertel 3421: $key=&unescape($1);
1.265 albertel 3422: }
3423: $string =~ s/^=//;
3424:
3425: #value
3426: my $value='';
3427: if($string =~ /^__HASH_REF__/) {
3428: ($value, $string)=&str2hashref($string);
3429: if(defined($value->{'error'})) {
3430: $hash{'error'}='Bad data';
3431: return (\%hash, $string);
3432: }
3433: } elsif($string =~ /^__ARRAY_REF__/) {
3434: ($value, $string)=&str2arrayref($string);
3435: if($value->[0] eq 'Array reference error') {
3436: $hash{'error'}='Bad data';
3437: return (\%hash, $string);
3438: }
3439: } else {
3440: $value=&get_scalar(\$string,'__END_HASH_REF__');
3441: }
3442: $string =~ s/^&//;
3443:
3444: $hash{$key}=$value;
1.204 albertel 3445: }
1.265 albertel 3446:
3447: $string =~ s/^__END_HASH_REF__//;
3448:
3449: return (\%hash, $string);
1.204 albertel 3450: }
3451:
3452: sub str2array {
1.265 albertel 3453: my ($string)=@_;
3454: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3455: return @$array;
3456: }
3457:
3458: sub str2arrayref {
1.204 albertel 3459: my ($string) = @_;
1.265 albertel 3460: my @array;
3461:
3462: if($string !~ /^__ARRAY_REF__/) {
3463: if (! ($string eq '' || !defined($string))) {
3464: $array[0]='Array reference error';
3465: }
3466: return (\@array, $string);
3467: }
3468:
3469: $string =~ s/^__ARRAY_REF__//;
3470:
3471: while($string !~ /^__END_ARRAY_REF__/) {
3472: my $value='';
3473: if($string =~ /^__HASH_REF__/) {
3474: ($value, $string)=&str2hashref($string);
3475: if(defined($value->{'error'})) {
3476: $array[0] ='Array reference error';
3477: return (\@array, $string);
3478: }
3479: } elsif($string =~ /^__ARRAY_REF__/) {
3480: ($value, $string)=&str2arrayref($string);
3481: if($value->[0] eq 'Array reference error') {
3482: $array[0] ='Array reference error';
3483: return (\@array, $string);
3484: }
3485: } else {
3486: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3487: }
3488: $string =~ s/^&//;
3489:
3490: push(@array, $value);
1.191 harris41 3491: }
1.265 albertel 3492:
3493: $string =~ s/^__END_ARRAY_REF__//;
3494:
3495: return (\@array, $string);
1.168 albertel 3496: }
3497:
1.167 albertel 3498: # -------------------------------------------------------------------Temp Store
3499:
1.168 albertel 3500: sub tmpreset {
3501: my ($symb,$namespace,$domain,$stuname) = @_;
3502: if (!$symb) {
3503: $symb=&symbread();
1.620 albertel 3504: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3505: }
3506: $symb=escape($symb);
3507:
1.620 albertel 3508: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3509: $namespace=~s/\//\_/g;
3510: $namespace=~s/\W//g;
3511:
1.620 albertel 3512: if (!$domain) { $domain=$env{'user.domain'}; }
3513: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3514: if ($domain eq 'public' && $stuname eq 'public') {
3515: $stuname=$ENV{'REMOTE_ADDR'};
3516: }
1.168 albertel 3517: my $path=$perlvar{'lonDaemons'}.'/tmp';
3518: my %hash;
3519: if (tie(%hash,'GDBM_File',
3520: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3521: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 3522: foreach my $key (keys(%hash)) {
1.180 albertel 3523: if ($key=~ /:$symb/) {
1.168 albertel 3524: delete($hash{$key});
3525: }
3526: }
3527: }
3528: }
3529:
1.167 albertel 3530: sub tmpstore {
1.168 albertel 3531: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3532:
3533: if (!$symb) {
3534: $symb=&symbread();
1.620 albertel 3535: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3536: }
3537: $symb=escape($symb);
3538:
3539: if (!$namespace) {
3540: # I don't think we would ever want to store this for a course.
3541: # it seems this will only be used if we don't have a course.
1.620 albertel 3542: #$namespace=$env{'request.course.id'};
1.168 albertel 3543: #if (!$namespace) {
1.620 albertel 3544: $namespace=$env{'request.state'};
1.168 albertel 3545: #}
3546: }
3547: $namespace=~s/\//\_/g;
3548: $namespace=~s/\W//g;
1.620 albertel 3549: if (!$domain) { $domain=$env{'user.domain'}; }
3550: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3551: if ($domain eq 'public' && $stuname eq 'public') {
3552: $stuname=$ENV{'REMOTE_ADDR'};
3553: }
1.168 albertel 3554: my $now=time;
3555: my %hash;
3556: my $path=$perlvar{'lonDaemons'}.'/tmp';
3557: if (tie(%hash,'GDBM_File',
3558: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3559: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3560: $hash{"version:$symb"}++;
3561: my $version=$hash{"version:$symb"};
3562: my $allkeys='';
3563: foreach my $key (keys(%$storehash)) {
3564: $allkeys.=$key.':';
1.591 albertel 3565: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3566: }
3567: $hash{"$version:$symb:timestamp"}=$now;
3568: $allkeys.='timestamp';
3569: $hash{"$version:keys:$symb"}=$allkeys;
3570: if (untie(%hash)) {
3571: return 'ok';
3572: } else {
3573: return "error:$!";
3574: }
3575: } else {
3576: return "error:$!";
3577: }
3578: }
1.167 albertel 3579:
1.168 albertel 3580: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3581:
1.168 albertel 3582: sub tmprestore {
3583: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3584:
1.168 albertel 3585: if (!$symb) {
3586: $symb=&symbread();
1.620 albertel 3587: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3588: }
3589: $symb=escape($symb);
3590:
1.620 albertel 3591: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3592:
1.620 albertel 3593: if (!$domain) { $domain=$env{'user.domain'}; }
3594: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3595: if ($domain eq 'public' && $stuname eq 'public') {
3596: $stuname=$ENV{'REMOTE_ADDR'};
3597: }
1.168 albertel 3598: my %returnhash;
3599: $namespace=~s/\//\_/g;
3600: $namespace=~s/\W//g;
3601: my %hash;
3602: my $path=$perlvar{'lonDaemons'}.'/tmp';
3603: if (tie(%hash,'GDBM_File',
3604: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3605: &GDBM_READER(),0640)) {
1.168 albertel 3606: my $version=$hash{"version:$symb"};
3607: $returnhash{'version'}=$version;
3608: my $scope;
3609: for ($scope=1;$scope<=$version;$scope++) {
3610: my $vkeys=$hash{"$scope:keys:$symb"};
3611: my @keys=split(/:/,$vkeys);
3612: my $key;
3613: $returnhash{"$scope:keys"}=$vkeys;
3614: foreach $key (@keys) {
1.591 albertel 3615: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3616: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3617: }
3618: }
1.168 albertel 3619: if (!(untie(%hash))) {
3620: return "error:$!";
3621: }
3622: } else {
3623: return "error:$!";
3624: }
3625: return %returnhash;
1.167 albertel 3626: }
3627:
1.9 www 3628: # ----------------------------------------------------------------------- Store
3629:
3630: sub store {
1.124 www 3631: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3632: my $home='';
3633:
1.168 albertel 3634: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3635:
1.213 www 3636: $symb=&symbclean($symb);
1.122 albertel 3637: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3638:
1.620 albertel 3639: if (!$domain) { $domain=$env{'user.domain'}; }
3640: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3641:
3642: &devalidate($symb,$stuname,$domain);
1.109 www 3643:
3644: $symb=escape($symb);
1.187 www 3645: if (!$namespace) {
1.620 albertel 3646: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3647: return '';
3648: }
3649: }
1.620 albertel 3650: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3651:
3652: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3653: $$storehash{'host'}=$perlvar{'lonHostID'};
3654:
1.12 www 3655: my $namevalue='';
1.800 albertel 3656: foreach my $key (keys(%$storehash)) {
3657: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3658: }
1.12 www 3659: $namevalue=~s/\&$//;
1.187 www 3660: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3661: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3662: }
3663:
1.47 www 3664: # -------------------------------------------------------------- Critical Store
3665:
3666: sub cstore {
1.124 www 3667: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3668: my $home='';
3669:
1.168 albertel 3670: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3671:
1.213 www 3672: $symb=&symbclean($symb);
1.122 albertel 3673: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3674:
1.620 albertel 3675: if (!$domain) { $domain=$env{'user.domain'}; }
3676: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3677:
3678: &devalidate($symb,$stuname,$domain);
1.109 www 3679:
3680: $symb=escape($symb);
1.187 www 3681: if (!$namespace) {
1.620 albertel 3682: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3683: return '';
3684: }
3685: }
1.620 albertel 3686: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3687:
3688: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3689: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3690:
1.47 www 3691: my $namevalue='';
1.800 albertel 3692: foreach my $key (keys(%$storehash)) {
3693: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3694: }
1.47 www 3695: $namevalue=~s/\&$//;
1.187 www 3696: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3697: return critical
3698: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3699: }
3700:
1.9 www 3701: # --------------------------------------------------------------------- Restore
3702:
3703: sub restore {
1.124 www 3704: my ($symb,$namespace,$domain,$stuname) = @_;
3705: my $home='';
3706:
1.168 albertel 3707: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3708:
1.122 albertel 3709: if (!$symb) {
3710: unless ($symb=escape(&symbread())) { return ''; }
3711: } else {
1.213 www 3712: $symb=&escape(&symbclean($symb));
1.122 albertel 3713: }
1.188 www 3714: if (!$namespace) {
1.620 albertel 3715: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3716: return '';
3717: }
3718: }
1.620 albertel 3719: if (!$domain) { $domain=$env{'user.domain'}; }
3720: if (!$stuname) { $stuname=$env{'user.name'}; }
3721: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3722: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3723:
1.12 www 3724: my %returnhash=();
1.800 albertel 3725: foreach my $line (split(/\&/,$answer)) {
3726: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3727: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3728: }
1.75 www 3729: my $version;
3730: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3731: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3732: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3733: }
1.75 www 3734: }
1.13 www 3735: return %returnhash;
1.34 www 3736: }
3737:
3738: # ---------------------------------------------------------- Course Description
3739:
3740: sub coursedescription {
1.731 albertel 3741: my ($courseid,$args)=@_;
1.34 www 3742: $courseid=~s/^\///;
1.49 www 3743: $courseid=~s/\_/\//g;
1.34 www 3744: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3745: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3746: my $normalid=$cdomain.'_'.$cnum;
3747: # need to always cache even if we get errors otherwise we keep
3748: # trying and trying and trying to get the course description.
3749: my %envhash=();
3750: my %returnhash=();
1.731 albertel 3751:
3752: my $expiretime=600;
3753: if ($env{'request.course.id'} eq $normalid) {
3754: $expiretime=120;
3755: }
3756:
3757: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3758: if (!$args->{'freshen_cache'}
3759: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3760: foreach my $key (keys(%env)) {
3761: next if ($key !~ /^\Q$prefix\E(.*)/);
3762: my ($setting) = $1;
3763: $returnhash{$setting} = $env{$key};
3764: }
3765: return %returnhash;
3766: }
3767:
3768: # get the data agin
3769: if (!$args->{'one_time'}) {
3770: $envhash{'course.'.$normalid.'.last_cache'}=time;
3771: }
1.811 albertel 3772:
1.34 www 3773: if ($chome ne 'no_host') {
1.302 albertel 3774: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3775: if (!exists($returnhash{'con_lost'})) {
3776: $returnhash{'home'}= $chome;
3777: $returnhash{'domain'} = $cdomain;
3778: $returnhash{'num'} = $cnum;
1.741 raeburn 3779: if (!defined($returnhash{'type'})) {
3780: $returnhash{'type'} = 'Course';
3781: }
1.130 albertel 3782: while (my ($name,$value) = each %returnhash) {
1.53 www 3783: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3784: }
1.270 www 3785: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3786: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3787: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3788: $envhash{'course.'.$normalid.'.home'}=$chome;
3789: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3790: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3791: }
3792: }
1.731 albertel 3793: if (!$args->{'one_time'}) {
1.949 raeburn 3794: &appenv(\%envhash);
1.731 albertel 3795: }
1.302 albertel 3796: return %returnhash;
1.461 www 3797: }
3798:
3799: # -------------------------------------------------See if a user is privileged
3800:
3801: sub privileged {
3802: my ($username,$domain)=@_;
3803: my $rolesdump=&reply("dump:$domain:$username:roles",
3804: &homeserver($username,$domain));
1.1033 raeburn 3805: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
3806: ($rolesdump =~ /^error:/)) {
3807: return 0;
3808: }
1.461 www 3809: my $now=time;
3810: if ($rolesdump ne '') {
1.800 albertel 3811: foreach my $entry (split(/&/,$rolesdump)) {
3812: if ($entry!~/^rolesdef_/) {
3813: my ($area,$role)=split(/=/,$entry);
1.461 www 3814: $area=~s/\_\w\w$//;
3815: my ($trole,$tend,$tstart)=split(/_/,$role);
3816: if (($trole eq 'dc') || ($trole eq 'su')) {
3817: my $active=1;
3818: if ($tend) {
3819: if ($tend<$now) { $active=0; }
3820: }
3821: if ($tstart) {
3822: if ($tstart>$now) { $active=0; }
3823: }
3824: if ($active) { return 1; }
3825: }
3826: }
3827: }
3828: }
3829: return 0;
1.9 www 3830: }
1.1 albertel 3831:
1.103 harris41 3832: # -------------------------------------------------------- Get user privileges
1.11 www 3833:
3834: sub rolesinit {
3835: my ($domain,$username,$authhost)=@_;
1.1034 raeburn 3836: my $now=time;
3837: my %userroles = ('user.login.time' => $now);
1.11 www 3838: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.1033 raeburn 3839: if (($rolesdump eq 'con_lost') || ($rolesdump eq '') ||
3840: ($rolesdump =~ /^error:/)) {
3841: return \%userroles;
3842: }
1.11 www 3843: my %allroles=();
1.678 raeburn 3844: my %allgroups=();
3845: my $group_privs;
1.11 www 3846:
3847: if ($rolesdump ne '') {
1.800 albertel 3848: foreach my $entry (split(/&/,$rolesdump)) {
3849: if ($entry!~/^rolesdef_/) {
3850: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3851: $area=~s/\_\w\w$//;
1.678 raeburn 3852: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3853: if ($role=~/^cr/) {
1.807 albertel 3854: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3855: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3856: ($tend,$tstart)=split('_',$trest);
3857: } else {
3858: $trole=$role;
3859: }
1.678 raeburn 3860: } elsif ($role =~ m|^gr/|) {
3861: ($trole,$tend,$tstart) = split(/_/,$role);
3862: ($trole,$group_privs) = split(/\//,$trole);
3863: $group_privs = &unescape($group_privs);
1.587 albertel 3864: } else {
3865: ($trole,$tend,$tstart)=split(/_/,$role);
3866: }
1.743 albertel 3867: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3868: $username);
3869: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3870: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3871: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3872: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3873: my $spec=$trole.'.'.$area;
3874: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3875: if ($trole =~ /^cr\//) {
1.567 raeburn 3876: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3877: } elsif ($trole eq 'gr') {
3878: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3879: } else {
1.567 raeburn 3880: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3881: }
1.12 www 3882: }
1.662 raeburn 3883: }
1.191 harris41 3884: }
1.743 albertel 3885: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3886: $userroles{'user.adv'} = $adv;
3887: $userroles{'user.author'} = $author;
1.620 albertel 3888: $env{'user.adv'}=$adv;
1.11 www 3889: }
1.743 albertel 3890: return \%userroles;
1.11 www 3891: }
3892:
1.567 raeburn 3893: sub set_arearole {
3894: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3895: # log the associated role with the area
3896: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3897: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3898: }
3899:
3900: sub custom_roleprivs {
3901: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3902: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3903: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3904: if (&hostname($homsvr) ne '') {
1.567 raeburn 3905: my ($rdummy,$roledef)=
3906: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3907: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3908: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3909: if (defined($syspriv)) {
3910: $$allroles{'cm./'}.=':'.$syspriv;
3911: $$allroles{$spec.'./'}.=':'.$syspriv;
3912: }
3913: if ($tdomain ne '') {
3914: if (defined($dompriv)) {
3915: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3916: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3917: }
3918: if (($trest ne '') && (defined($coursepriv))) {
3919: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3920: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3921: }
3922: }
3923: }
3924: }
3925: }
3926:
1.678 raeburn 3927: sub group_roleprivs {
3928: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3929: my $access = 1;
3930: my $now = time;
3931: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3932: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3933: if ($access) {
1.811 albertel 3934: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3935: $$allgroups{$course}{$group} .=':'.$group_privs;
3936: }
3937: }
1.567 raeburn 3938:
3939: sub standard_roleprivs {
3940: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3941: if (defined($pr{$trole.':s'})) {
3942: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3943: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3944: }
3945: if ($tdomain ne '') {
3946: if (defined($pr{$trole.':d'})) {
3947: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3948: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3949: }
3950: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3951: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3952: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3953: }
3954: }
3955: }
3956:
3957: sub set_userprivs {
1.678 raeburn 3958: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3959: my $author=0;
3960: my $adv=0;
1.678 raeburn 3961: my %grouproles = ();
3962: if (keys(%{$allgroups}) > 0) {
1.1000 raeburn 3963: foreach my $role (keys(%{$allroles})) {
1.681 raeburn 3964: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3965: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3966: $trole = $1;
3967: $area = $2;
1.681 raeburn 3968: $sec = $3;
3969: $extendedarea = $area.$sec;
3970: if (exists($$allgroups{$area})) {
3971: foreach my $group (keys(%{$$allgroups{$area}})) {
3972: my $spec = $trole.'.'.$extendedarea;
3973: $grouproles{$spec.'.'.$area.'/'.$group} =
3974: $$allgroups{$area}{$group};
1.678 raeburn 3975: }
3976: }
3977: }
3978: }
3979: }
1.800 albertel 3980: foreach my $group (keys(%grouproles)) {
3981: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 3982: }
1.800 albertel 3983: foreach my $role (keys(%{$allroles})) {
3984: my %thesepriv;
1.941 raeburn 3985: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 3986: foreach my $item (split(/:/,$$allroles{$role})) {
3987: if ($item ne '') {
3988: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 3989: if ($restrictions eq '') {
3990: $thesepriv{$privilege}='F';
3991: } elsif ($thesepriv{$privilege} ne 'F') {
3992: $thesepriv{$privilege}.=$restrictions;
3993: }
3994: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
3995: }
3996: }
3997: my $thesestr='';
1.800 albertel 3998: foreach my $priv (keys(%thesepriv)) {
3999: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
4000: }
4001: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 4002: }
4003: return ($author,$adv);
4004: }
4005:
1.994 raeburn 4006: sub role_status {
1.1002 raeburn 4007: my ($rolekey,$then,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 4008: my @pwhere = ();
4009: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
4010: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
4011: unless (!defined($$role) || $$role eq '') {
4012: $$where=join('.',@pwhere);
4013: $$trolecode=$$role.'.'.$$where;
4014: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
4015: $$tstatus='is';
4016: if ($$tstart && $$tstart>$then) {
4017: $$tstatus='future';
1.1034 raeburn 4018: if ($$tstart<$now) {
4019: if ($$tstart && $$tstart>$refresh) {
1.1002 raeburn 4020: if (($$where ne '') && ($$role ne '')) {
4021: my (%allroles,%allgroups,$group_privs);
4022: my %userroles = (
4023: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
4024: );
4025: my $spec=$$role.'.'.$$where;
4026: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
4027: if ($$role eq 'gr') {
4028: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4029: $env{'user.name'})=@_;
4030: my ($trole) = split('_',$role,1);
4031: (undef,my $group_privs) = split(/\//,$trole);
4032: $group_privs = &unescape($group_privs);
4033: }
4034: if ($$role =~ /^cr\//) {
4035: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
4036: } elsif ($$role eq 'gr') {
4037: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4038: $env{'user.name'});
4039: my $trole = split('_',$rolehash{$$where.'_'.$$role},1);
4040: (undef,my $group_privs) = split(/\//,$trole);
4041: $group_privs = &unescape($group_privs);
4042: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
4043: } else {
4044: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
4045: }
4046: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups);
4047: &appenv(\%userroles,[$$role,'cm']);
4048: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4049: }
4050: }
1.1034 raeburn 4051: $$tstatus = 'is';
1.1002 raeburn 4052: }
1.994 raeburn 4053: }
4054: if ($$tend) {
4055: if ($$tend<$then) {
4056: $$tstatus='expired';
4057: } elsif ($$tend<$now) {
4058: $$tstatus='will_not';
4059: }
4060: }
4061: }
4062: }
4063: }
4064:
4065: sub check_adhoc_privs {
1.1002 raeburn 4066: my ($cdom,$cnum,$then,$refresh,$now,$checkrole) = @_;
1.994 raeburn 4067: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
4068: if ($env{$cckey}) {
4069: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1002 raeburn 4070: &role_status($cckey,$then,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 4071: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
4072: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4073: }
4074: } else {
4075: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4076: }
4077: }
4078:
4079: sub set_adhoc_privileges {
4080: # role can be cc or ca
4081: my ($dcdom,$pickedcourse,$role) = @_;
4082: my $area = '/'.$dcdom.'/'.$pickedcourse;
4083: my $spec = $role.'.'.$area;
4084: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
4085: $env{'user.name'});
4086: my %ccrole = ();
4087: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
4088: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
4089: &appenv(\%userroles,[$role,'cm']);
4090: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4091: &appenv( {'request.role' => $spec,
4092: 'request.role.domain' => $dcdom,
4093: 'request.course.sec' => ''
4094: }
4095: );
4096: my $tadv=0;
4097: if (&allowed('adv') eq 'F') { $tadv=1; }
4098: &appenv({'request.role.adv' => $tadv});
4099: }
4100:
1.12 www 4101: # --------------------------------------------------------------- get interface
4102:
4103: sub get {
1.131 albertel 4104: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4105: my $items='';
1.800 albertel 4106: foreach my $item (@$storearr) {
4107: $items.=&escape($item).'&';
1.191 harris41 4108: }
1.12 www 4109: $items=~s/\&$//;
1.620 albertel 4110: if (!$udomain) { $udomain=$env{'user.domain'}; }
4111: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 4112: my $uhome=&homeserver($uname,$udomain);
4113:
1.133 albertel 4114: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4115: my @pairs=split(/\&/,$rep);
1.273 albertel 4116: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
4117: return @pairs;
4118: }
1.15 www 4119: my %returnhash=();
1.42 www 4120: my $i=0;
1.800 albertel 4121: foreach my $item (@$storearr) {
4122: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4123: $i++;
1.191 harris41 4124: }
1.15 www 4125: return %returnhash;
1.27 www 4126: }
4127:
4128: # --------------------------------------------------------------- del interface
4129:
4130: sub del {
1.133 albertel 4131: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 4132: my $items='';
1.800 albertel 4133: foreach my $item (@$storearr) {
4134: $items.=&escape($item).'&';
1.191 harris41 4135: }
1.984 neumanie 4136:
1.27 www 4137: $items=~s/\&$//;
1.620 albertel 4138: if (!$udomain) { $udomain=$env{'user.domain'}; }
4139: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4140: my $uhome=&homeserver($uname,$udomain);
4141: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4142: }
4143:
4144: # -------------------------------------------------------------- dump interface
4145:
4146: sub dump {
1.755 albertel 4147: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
4148: if (!$udomain) { $udomain=$env{'user.domain'}; }
4149: if (!$uname) { $uname=$env{'user.name'}; }
4150: my $uhome=&homeserver($uname,$udomain);
4151: if ($regexp) {
4152: $regexp=&escape($regexp);
4153: } else {
4154: $regexp='.';
4155: }
4156: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4157: my @pairs=split(/\&/,$rep);
4158: my %returnhash=();
4159: foreach my $item (@pairs) {
4160: my ($key,$value)=split(/=/,$item,2);
4161: $key = &unescape($key);
4162: next if ($key =~ /^error: 2 /);
4163: $returnhash{$key}=&thaw_unescape($value);
4164: }
4165: return %returnhash;
1.407 www 4166: }
4167:
1.717 albertel 4168: # --------------------------------------------------------- dumpstore interface
4169:
4170: sub dumpstore {
4171: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 4172: if (!$udomain) { $udomain=$env{'user.domain'}; }
4173: if (!$uname) { $uname=$env{'user.name'}; }
4174: my $uhome=&homeserver($uname,$udomain);
4175: if ($regexp) {
4176: $regexp=&escape($regexp);
4177: } else {
4178: $regexp='.';
4179: }
4180: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4181: my @pairs=split(/\&/,$rep);
4182: my %returnhash=();
4183: foreach my $item (@pairs) {
4184: my ($key,$value)=split(/=/,$item,2);
4185: next if ($key =~ /^error: 2 /);
4186: $returnhash{$key}=&thaw_unescape($value);
4187: }
4188: return %returnhash;
1.717 albertel 4189: }
4190:
1.407 www 4191: # -------------------------------------------------------------- keys interface
4192:
4193: sub getkeys {
4194: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 4195: if (!$udomain) { $udomain=$env{'user.domain'}; }
4196: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 4197: my $uhome=&homeserver($uname,$udomain);
4198: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
4199: my @keyarray=();
1.800 albertel 4200: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 4201: next if ($key =~ /^error: 2 /);
1.800 albertel 4202: push(@keyarray,&unescape($key));
1.407 www 4203: }
4204: return @keyarray;
1.318 matthew 4205: }
4206:
1.319 matthew 4207: # --------------------------------------------------------------- currentdump
4208: sub currentdump {
1.328 matthew 4209: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 4210: $courseid = $env{'request.course.id'} if (! defined($courseid));
4211: $sdom = $env{'user.domain'} if (! defined($sdom));
4212: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 4213: my $uhome = &homeserver($sname,$sdom);
4214: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 4215: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 4216: #
1.318 matthew 4217: my %returnhash=();
1.319 matthew 4218: #
4219: if ($rep eq "unknown_cmd") {
4220: # an old lond will not know currentdump
4221: # Do a dump and make it look like a currentdump
1.822 albertel 4222: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 4223: return if ($tmp[0] =~ /^(error:|no_such_host)/);
4224: my %hash = @tmp;
4225: @tmp=();
1.424 matthew 4226: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 4227: } else {
4228: my @pairs=split(/\&/,$rep);
1.800 albertel 4229: foreach my $pair (@pairs) {
4230: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 4231: my ($symb,$param) = split(/:/,$key);
4232: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 4233: &thaw_unescape($value);
1.319 matthew 4234: }
1.191 harris41 4235: }
1.12 www 4236: return %returnhash;
1.424 matthew 4237: }
4238:
4239: sub convert_dump_to_currentdump{
4240: my %hash = %{shift()};
4241: my %returnhash;
4242: # Code ripped from lond, essentially. The only difference
4243: # here is the unescaping done by lonnet::dump(). Conceivably
4244: # we might run in to problems with parameter names =~ /^v\./
4245: while (my ($key,$value) = each(%hash)) {
4246: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 4247: $symb = &unescape($symb);
4248: $param = &unescape($param);
1.424 matthew 4249: next if ($v eq 'version' || $symb eq 'keys');
4250: next if (exists($returnhash{$symb}) &&
4251: exists($returnhash{$symb}->{$param}) &&
4252: $returnhash{$symb}->{'v.'.$param} > $v);
4253: $returnhash{$symb}->{$param}=$value;
4254: $returnhash{$symb}->{'v.'.$param}=$v;
4255: }
4256: #
4257: # Remove all of the keys in the hashes which keep track of
4258: # the version of the parameter.
4259: while (my ($symb,$param_hash) = each(%returnhash)) {
4260: # use a foreach because we are going to delete from the hash.
4261: foreach my $key (keys(%$param_hash)) {
4262: delete($param_hash->{$key}) if ($key =~ /^v\./);
4263: }
4264: }
4265: return \%returnhash;
1.12 www 4266: }
4267:
1.627 albertel 4268: # ------------------------------------------------------ critical inc interface
4269:
4270: sub cinc {
4271: return &inc(@_,'critical');
4272: }
4273:
1.449 matthew 4274: # --------------------------------------------------------------- inc interface
4275:
4276: sub inc {
1.627 albertel 4277: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 4278: if (!$udomain) { $udomain=$env{'user.domain'}; }
4279: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 4280: my $uhome=&homeserver($uname,$udomain);
4281: my $items='';
4282: if (! ref($store)) {
4283: # got a single value, so use that instead
4284: $items = &escape($store).'=&';
4285: } elsif (ref($store) eq 'SCALAR') {
4286: $items = &escape($$store).'=&';
4287: } elsif (ref($store) eq 'ARRAY') {
4288: $items = join('=&',map {&escape($_);} @{$store});
4289: } elsif (ref($store) eq 'HASH') {
4290: while (my($key,$value) = each(%{$store})) {
4291: $items.= &escape($key).'='.&escape($value).'&';
4292: }
4293: }
4294: $items=~s/\&$//;
1.627 albertel 4295: if ($critical) {
4296: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
4297: } else {
4298: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
4299: }
1.449 matthew 4300: }
4301:
1.12 www 4302: # --------------------------------------------------------------- put interface
4303:
4304: sub put {
1.134 albertel 4305: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4306: if (!$udomain) { $udomain=$env{'user.domain'}; }
4307: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4308: my $uhome=&homeserver($uname,$udomain);
1.12 www 4309: my $items='';
1.800 albertel 4310: foreach my $item (keys(%$storehash)) {
4311: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4312: }
1.12 www 4313: $items=~s/\&$//;
1.134 albertel 4314: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 4315: }
4316:
1.631 albertel 4317: # ------------------------------------------------------------ newput interface
4318:
4319: sub newput {
4320: my ($namespace,$storehash,$udomain,$uname)=@_;
4321: if (!$udomain) { $udomain=$env{'user.domain'}; }
4322: if (!$uname) { $uname=$env{'user.name'}; }
4323: my $uhome=&homeserver($uname,$udomain);
4324: my $items='';
4325: foreach my $key (keys(%$storehash)) {
4326: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
4327: }
4328: $items=~s/\&$//;
4329: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
4330: }
4331:
4332: # --------------------------------------------------------- putstore interface
4333:
1.524 raeburn 4334: sub putstore {
1.715 albertel 4335: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 4336: if (!$udomain) { $udomain=$env{'user.domain'}; }
4337: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 4338: my $uhome=&homeserver($uname,$udomain);
4339: my $items='';
1.715 albertel 4340: foreach my $key (keys(%$storehash)) {
4341: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 4342: }
1.715 albertel 4343: $items=~s/\&$//;
1.716 albertel 4344: my $esc_symb=&escape($symb);
4345: my $esc_v=&escape($version);
1.715 albertel 4346: my $reply =
1.716 albertel 4347: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 4348: $uhome);
4349: if ($reply eq 'unknown_cmd') {
1.716 albertel 4350: # gfall back to way things use to be done
1.715 albertel 4351: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
4352: $uname);
1.524 raeburn 4353: }
1.715 albertel 4354: return $reply;
4355: }
4356:
4357: sub old_putstore {
1.716 albertel 4358: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
4359: if (!$udomain) { $udomain=$env{'user.domain'}; }
4360: if (!$uname) { $uname=$env{'user.name'}; }
4361: my $uhome=&homeserver($uname,$udomain);
4362: my %newstorehash;
1.800 albertel 4363: foreach my $item (keys(%$storehash)) {
4364: my $key = $version.':'.&escape($symb).':'.$item;
4365: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 4366: }
4367: my $items='';
4368: my %allitems = ();
1.800 albertel 4369: foreach my $item (keys(%newstorehash)) {
4370: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4371: my $key = $1.':keys:'.$2;
4372: $allitems{$key} .= $3.':';
4373: }
1.800 albertel 4374: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4375: }
1.800 albertel 4376: foreach my $item (keys(%allitems)) {
4377: $allitems{$item} =~ s/\:$//;
4378: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4379: }
4380: $items=~s/\&$//;
4381: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4382: }
4383:
1.47 www 4384: # ------------------------------------------------------ critical put interface
4385:
4386: sub cput {
1.134 albertel 4387: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4388: if (!$udomain) { $udomain=$env{'user.domain'}; }
4389: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4390: my $uhome=&homeserver($uname,$udomain);
1.47 www 4391: my $items='';
1.800 albertel 4392: foreach my $item (keys(%$storehash)) {
4393: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4394: }
1.47 www 4395: $items=~s/\&$//;
1.134 albertel 4396: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4397: }
4398:
4399: # -------------------------------------------------------------- eget interface
4400:
4401: sub eget {
1.133 albertel 4402: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4403: my $items='';
1.800 albertel 4404: foreach my $item (@$storearr) {
4405: $items.=&escape($item).'&';
1.191 harris41 4406: }
1.12 www 4407: $items=~s/\&$//;
1.620 albertel 4408: if (!$udomain) { $udomain=$env{'user.domain'}; }
4409: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4410: my $uhome=&homeserver($uname,$udomain);
4411: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4412: my @pairs=split(/\&/,$rep);
4413: my %returnhash=();
1.42 www 4414: my $i=0;
1.800 albertel 4415: foreach my $item (@$storearr) {
4416: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4417: $i++;
1.191 harris41 4418: }
1.12 www 4419: return %returnhash;
4420: }
4421:
1.667 albertel 4422: # ------------------------------------------------------------ tmpput interface
4423: sub tmpput {
1.802 raeburn 4424: my ($storehash,$server,$context)=@_;
1.667 albertel 4425: my $items='';
1.800 albertel 4426: foreach my $item (keys(%$storehash)) {
4427: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4428: }
4429: $items=~s/\&$//;
1.802 raeburn 4430: if (defined($context)) {
4431: $items .= ':'.&escape($context);
4432: }
1.667 albertel 4433: return &reply("tmpput:$items",$server);
4434: }
4435:
4436: # ------------------------------------------------------------ tmpget interface
4437: sub tmpget {
1.688 albertel 4438: my ($token,$server)=@_;
4439: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4440: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4441: my %returnhash;
4442: foreach my $item (split(/\&/,$rep)) {
4443: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4444: next if ($key =~ /^error: 2 /);
1.667 albertel 4445: $returnhash{&unescape($key)}=&thaw_unescape($value);
4446: }
4447: return %returnhash;
4448: }
4449:
1.688 albertel 4450: # ------------------------------------------------------------ tmpget interface
4451: sub tmpdel {
4452: my ($token,$server)=@_;
4453: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4454: return &reply("tmpdel:$token",$server);
4455: }
4456:
1.765 albertel 4457: # -------------------------------------------------- portfolio access checking
4458:
4459: sub portfolio_access {
1.766 albertel 4460: my ($requrl) = @_;
1.765 albertel 4461: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4462: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4463: if ($result) {
4464: my %setters;
4465: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4466: my ($startblock,$endblock) =
4467: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4468: if ($startblock && $endblock) {
4469: return 'B';
4470: }
4471: } else {
4472: my ($startblock,$endblock) =
4473: &Apache::loncommon::blockcheck(\%setters,'port');
4474: if ($startblock && $endblock) {
4475: return 'B';
4476: }
4477: }
4478: }
1.765 albertel 4479: if ($result eq 'ok') {
1.766 albertel 4480: return 'F';
1.765 albertel 4481: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4482: return 'A';
1.765 albertel 4483: }
1.766 albertel 4484: return '';
1.765 albertel 4485: }
4486:
4487: sub get_portfolio_access {
1.767 albertel 4488: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4489:
4490: if (!ref($access_hash)) {
4491: my $current_perms = &get_portfile_permissions($udom,$unum);
4492: my %access_controls = &get_access_controls($current_perms,$group,
4493: $file_name);
4494: $access_hash = $access_controls{$file_name};
4495: }
4496:
1.765 albertel 4497: my ($public,$guest,@domains,@users,@courses,@groups);
4498: my $now = time;
4499: if (ref($access_hash) eq 'HASH') {
4500: foreach my $key (keys(%{$access_hash})) {
4501: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4502: if ($start > $now) {
4503: next;
4504: }
4505: if ($end && $end<$now) {
4506: next;
4507: }
4508: if ($scope eq 'public') {
4509: $public = $key;
4510: last;
4511: } elsif ($scope eq 'guest') {
4512: $guest = $key;
4513: } elsif ($scope eq 'domains') {
4514: push(@domains,$key);
4515: } elsif ($scope eq 'users') {
4516: push(@users,$key);
4517: } elsif ($scope eq 'course') {
4518: push(@courses,$key);
4519: } elsif ($scope eq 'group') {
4520: push(@groups,$key);
4521: }
4522: }
4523: if ($public) {
4524: return 'ok';
4525: }
4526: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4527: if ($guest) {
4528: return $guest;
4529: }
4530: } else {
4531: if (@domains > 0) {
4532: foreach my $domkey (@domains) {
4533: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4534: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4535: return 'ok';
4536: }
4537: }
4538: }
4539: }
4540: if (@users > 0) {
4541: foreach my $userkey (@users) {
1.865 raeburn 4542: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4543: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4544: if (ref($item) eq 'HASH') {
4545: if (($item->{'uname'} eq $env{'user.name'}) &&
4546: ($item->{'udom'} eq $env{'user.domain'})) {
4547: return 'ok';
4548: }
4549: }
4550: }
4551: }
1.765 albertel 4552: }
4553: }
4554: my %roleshash;
4555: my @courses_and_groups = @courses;
4556: push(@courses_and_groups,@groups);
4557: if (@courses_and_groups > 0) {
4558: my (%allgroups,%allroles);
4559: my ($start,$end,$role,$sec,$group);
4560: foreach my $envkey (%env) {
1.811 albertel 4561: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4562: my $cid = $2.'_'.$3;
4563: if ($1 eq 'gr') {
4564: $group = $4;
4565: $allgroups{$cid}{$group} = $env{$envkey};
4566: } else {
4567: if ($4 eq '') {
4568: $sec = 'none';
4569: } else {
4570: $sec = $4;
4571: }
4572: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4573: }
1.811 albertel 4574: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4575: my $cid = $2.'_'.$3;
4576: if ($4 eq '') {
4577: $sec = 'none';
4578: } else {
4579: $sec = $4;
4580: }
4581: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4582: }
4583: }
4584: if (keys(%allroles) == 0) {
4585: return;
4586: }
4587: foreach my $key (@courses_and_groups) {
4588: my %content = %{$$access_hash{$key}};
4589: my $cnum = $content{'number'};
4590: my $cdom = $content{'domain'};
4591: my $cid = $cdom.'_'.$cnum;
4592: if (!exists($allroles{$cid})) {
4593: next;
4594: }
4595: foreach my $role_id (keys(%{$content{'roles'}})) {
4596: my @sections = @{$content{'roles'}{$role_id}{'section'}};
4597: my @groups = @{$content{'roles'}{$role_id}{'group'}};
4598: my @status = @{$content{'roles'}{$role_id}{'access'}};
4599: my @roles = @{$content{'roles'}{$role_id}{'role'}};
4600: foreach my $role (keys(%{$allroles{$cid}})) {
4601: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
4602: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
4603: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
4604: if (grep/^all$/,@sections) {
4605: return 'ok';
4606: } else {
4607: if (grep/^$sec$/,@sections) {
4608: return 'ok';
4609: }
4610: }
4611: }
4612: }
4613: if (keys(%{$allgroups{$cid}}) == 0) {
4614: if (grep/^none$/,@groups) {
4615: return 'ok';
4616: }
4617: } else {
4618: if (grep/^all$/,@groups) {
4619: return 'ok';
4620: }
4621: foreach my $group (keys(%{$allgroups{$cid}})) {
4622: if (grep/^$group$/,@groups) {
4623: return 'ok';
4624: }
4625: }
4626: }
4627: }
4628: }
4629: }
4630: }
4631: }
4632: if ($guest) {
4633: return $guest;
4634: }
4635: }
4636: }
4637: return;
4638: }
4639:
4640: sub course_group_datechecker {
4641: my ($dates,$now,$status) = @_;
4642: my ($start,$end) = split(/\./,$dates);
4643: if (!$start && !$end) {
4644: return 'ok';
4645: }
4646: if (grep/^active$/,@{$status}) {
4647: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
4648: return 'ok';
4649: }
4650: }
4651: if (grep/^previous$/,@{$status}) {
4652: if ($end > $now ) {
4653: return 'ok';
4654: }
4655: }
4656: if (grep/^future$/,@{$status}) {
4657: if ($start > $now) {
4658: return 'ok';
4659: }
4660: }
4661: return;
4662: }
4663:
4664: sub parse_portfolio_url {
4665: my ($url) = @_;
4666:
4667: my ($type,$udom,$unum,$group,$file_name);
4668:
1.823 albertel 4669: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 4670: $type = 1;
4671: $udom = $1;
4672: $unum = $2;
4673: $file_name = $3;
1.823 albertel 4674: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 4675: $type = 2;
4676: $udom = $1;
4677: $unum = $2;
4678: $group = $3;
4679: $file_name = $3.'/'.$4;
4680: }
4681: if (wantarray) {
4682: return ($type,$udom,$unum,$file_name,$group);
4683: }
4684: return $type;
4685: }
4686:
4687: sub is_portfolio_url {
4688: my ($url) = @_;
4689: return scalar(&parse_portfolio_url($url));
4690: }
4691:
1.798 raeburn 4692: sub is_portfolio_file {
4693: my ($file) = @_;
1.820 raeburn 4694: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 4695: return 1;
4696: }
4697: return;
4698: }
4699:
1.976 raeburn 4700: sub usertools_access {
1.985 raeburn 4701: my ($uname,$udom,$tool,$action,$context) = @_;
4702: my ($access,%tools);
4703: if ($context eq '') {
4704: $context = 'tools';
4705: }
4706: if ($context eq 'requestcourses') {
4707: %tools = (
4708: official => 1,
4709: unofficial => 1,
1.1006 raeburn 4710: community => 1,
1.985 raeburn 4711: );
4712: } else {
4713: %tools = (
4714: aboutme => 1,
4715: blog => 1,
4716: portfolio => 1,
4717: );
4718: }
1.976 raeburn 4719: return if (!defined($tools{$tool}));
4720:
4721: if ((!defined($udom)) || (!defined($uname))) {
4722: $udom = $env{'user.domain'};
4723: $uname = $env{'user.name'};
4724: }
4725:
1.978 raeburn 4726: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
4727: if ($action ne 'reload') {
1.985 raeburn 4728: if ($context eq 'requestcourses') {
4729: return $env{'environment.canrequest.'.$tool};
4730: } else {
4731: return $env{'environment.availabletools.'.$tool};
4732: }
4733: }
1.976 raeburn 4734: }
4735:
4736: my ($toolstatus,$inststatus);
4737:
1.985 raeburn 4738: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
4739: ($action ne 'reload')) {
4740: $toolstatus = $env{'environment.'.$context.'.'.$tool};
1.976 raeburn 4741: $inststatus = $env{'environment.inststatus'};
4742: } else {
1.1025 raeburn 4743: my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool,'inststatus');
1.985 raeburn 4744: $toolstatus = $userenv{$context.'.'.$tool};
1.976 raeburn 4745: $inststatus = $userenv{'inststatus'};
4746: }
4747:
4748: if ($toolstatus ne '') {
4749: if ($toolstatus) {
4750: $access = 1;
4751: } else {
4752: $access = 0;
4753: }
4754: return $access;
4755: }
4756:
4757: my $is_adv = &is_advanced_user($udom,$uname);
4758: my %domdef = &get_domain_defaults($udom);
4759: if (ref($domdef{$tool}) eq 'HASH') {
4760: if ($is_adv) {
4761: if ($domdef{$tool}{'_LC_adv'} ne '') {
4762: if ($domdef{$tool}{'_LC_adv'}) {
4763: $access = 1;
4764: } else {
4765: $access = 0;
4766: }
4767: return $access;
4768: }
4769: }
4770: if ($inststatus ne '') {
4771: my ($hasaccess,$hasnoaccess);
4772: foreach my $affiliation (split(/:/,$inststatus)) {
4773: if ($domdef{$tool}{$affiliation} ne '') {
4774: if ($domdef{$tool}{$affiliation}) {
4775: $hasaccess = 1;
4776: } else {
4777: $hasnoaccess = 1;
4778: }
4779: }
4780: }
4781: if ($hasaccess || $hasnoaccess) {
4782: if ($hasaccess) {
4783: $access = 1;
4784: } elsif ($hasnoaccess) {
4785: $access = 0;
4786: }
4787: return $access;
4788: }
4789: } else {
4790: if ($domdef{$tool}{'default'} ne '') {
4791: if ($domdef{$tool}{'default'}) {
4792: $access = 1;
4793: } elsif ($domdef{$tool}{'default'} == 0) {
4794: $access = 0;
4795: }
4796: return $access;
4797: }
4798: }
4799: } else {
1.985 raeburn 4800: if ($context eq 'tools') {
4801: $access = 1;
4802: } else {
4803: $access = 0;
4804: }
1.976 raeburn 4805: return $access;
4806: }
4807: }
4808:
4809: sub is_advanced_user {
4810: my ($udom,$uname) = @_;
4811: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
4812: my %allroles;
4813: my $is_adv;
4814: foreach my $role (keys(%roleshash)) {
4815: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
4816: my $area = '/'.$tdomain.'/'.$trest;
4817: if ($sec ne '') {
4818: $area .= '/'.$sec;
4819: }
4820: if (($area ne '') && ($trole ne '')) {
4821: my $spec=$trole.'.'.$area;
4822: if ($trole =~ /^cr\//) {
4823: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
4824: } elsif ($trole ne 'gr') {
4825: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
4826: }
4827: }
4828: }
4829: foreach my $role (keys(%allroles)) {
4830: last if ($is_adv);
4831: foreach my $item (split(/:/,$allroles{$role})) {
4832: if ($item ne '') {
4833: my ($privilege,$restrictions)=split(/&/,$item);
4834: if ($privilege eq 'adv') {
4835: $is_adv = 1;
4836: last;
4837: }
4838: }
4839: }
4840: }
4841: return $is_adv;
4842: }
1.798 raeburn 4843:
1.1035 raeburn 4844: sub check_can_request {
1.1036 ! raeburn 4845: my ($dom,$can_request,$request_domains) = @_;
1.1035 raeburn 4846: my $canreq = 0;
4847: my ($types,$typename) = &Apache::loncommon::course_types();
4848: my @options = ('approval','validate','autolimit');
4849: my $optregex = join('|',@options);
4850: if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
4851: foreach my $type (@{$types}) {
4852: if (&usertools_access($env{'user.name'},
4853: $env{'user.domain'},
4854: $type,undef,'requestcourses')) {
4855: $canreq ++;
1.1036 ! raeburn 4856: if (ref($request_domains) eq 'HASH') {
! 4857: push(@{$request_domains->{$type}},$env{'user.domain'});
! 4858: }
1.1035 raeburn 4859: if ($dom eq $env{'user.domain'}) {
4860: $can_request->{$type} = 1;
4861: }
4862: }
4863: if ($env{'environment.reqcrsotherdom.'.$type} ne '') {
4864: my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
4865: if (@curr > 0) {
1.1036 ! raeburn 4866: foreach my $item (@curr) {
! 4867: if (ref($request_domains) eq 'HASH') {
! 4868: my ($otherdom) = ($item =~ /^($match_domain):($optregex)(=?\d*)$/);
! 4869: if ($otherdom ne '') {
! 4870: if (ref($request_domains->{$type}) eq 'ARRAY') {
! 4871: unless (grep(/^\Q$otherdom\E$/,@{$request_domains->{$type}})) {
! 4872: push(@{$request_domains->{$type}},$otherdom);
! 4873: }
! 4874: } else {
! 4875: push(@{$request_domains->{$type}},$otherdom);
! 4876: }
! 4877: }
! 4878: }
! 4879: }
! 4880: unless($dom eq $env{'user.domain'}) {
! 4881: $canreq ++;
1.1035 raeburn 4882: if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
4883: $can_request->{$type} = 1;
4884: }
4885: }
4886: }
4887: }
4888: }
4889: }
4890: return $canreq;
4891: }
4892:
1.341 www 4893: # ---------------------------------------------- Custom access rule evaluation
4894:
4895: sub customaccess {
4896: my ($priv,$uri)=@_;
1.807 albertel 4897: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 4898: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 4899: $udom = &LONCAPA::clean_domain($udom);
4900: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 4901: my $access=0;
1.800 albertel 4902: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 4903: my ($effect,$realm,$role,$type)=split(/\:/,$right);
4904: if ($type eq 'user') {
4905: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 4906: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 4907: if ($tdom) {
4908: if ($tdom ne $env{'user.domain'}) { next; }
4909: }
1.896 albertel 4910: if ($tuname) {
4911: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 4912: }
4913: $access=($effect eq 'allow');
4914: last;
4915: }
4916: } else {
4917: if ($role) {
4918: if ($role ne $urole) { next; }
4919: }
4920: foreach my $scope (split(/\s*\,\s*/,$realm)) {
4921: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
4922: if ($tdom) {
4923: if ($tdom ne $udom) { next; }
4924: }
4925: if ($tcrs) {
4926: if ($tcrs ne $ucrs) { next; }
4927: }
4928: if ($tsec) {
4929: if ($tsec ne $usec) { next; }
4930: }
4931: $access=($effect eq 'allow');
4932: last;
4933: }
4934: if ($realm eq '' && $role eq '') {
4935: $access=($effect eq 'allow');
4936: }
1.402 bowersj2 4937: }
1.341 www 4938: }
4939: return $access;
4940: }
4941:
1.103 harris41 4942: # ------------------------------------------------- Check for a user privilege
1.12 www 4943:
4944: sub allowed {
1.810 raeburn 4945: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 4946: my $ver_orguri=$uri;
1.439 www 4947: $uri=&deversion($uri);
1.152 www 4948: my $orguri=$uri;
1.52 www 4949: $uri=&declutter($uri);
1.809 raeburn 4950:
1.810 raeburn 4951: if ($priv eq 'evb') {
4952: # Evade communication block restrictions for specified role in a course
4953: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
4954: return $1;
4955: } else {
4956: return;
4957: }
4958: }
4959:
1.620 albertel 4960: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 4961: # Free bre access to adm and meta resources
1.775 albertel 4962: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 4963: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
4964: && ($priv eq 'bre')) {
1.14 www 4965: return 'F';
1.159 www 4966: }
4967:
1.545 banghart 4968: # Free bre access to user's own portfolio contents
1.714 raeburn 4969: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 4970: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 4971: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 4972: my %setters;
4973: my ($startblock,$endblock) =
4974: &Apache::loncommon::blockcheck(\%setters,'port');
4975: if ($startblock && $endblock) {
4976: return 'B';
4977: } else {
4978: return 'F';
4979: }
1.545 banghart 4980: }
4981:
1.762 raeburn 4982: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 4983: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
4984: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
4985: if (exists($env{'request.course.id'})) {
4986: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4987: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4988: if (($domain eq $cdom) && ($name eq $cnum)) {
4989: my $courseprivid=$env{'request.course.id'};
4990: $courseprivid=~s/\_/\//;
4991: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
4992: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
4993: return $1;
1.762 raeburn 4994: } else {
4995: if ($env{'request.course.sec'}) {
4996: $courseprivid.='/'.$env{'request.course.sec'};
4997: }
4998: if ($env{'user.priv.'.$env{'request.role'}.'./'.
4999: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
5000: return $2;
5001: }
1.714 raeburn 5002: }
5003: }
5004: }
5005: }
5006:
1.159 www 5007: # Free bre to public access
5008:
5009: if ($priv eq 'bre') {
1.238 www 5010: my $copyright=&metadata($uri,'copyright');
1.620 albertel 5011: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 5012: return 'F';
5013: }
1.238 www 5014: if ($copyright eq 'priv') {
5015: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5016: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 5017: return '';
5018: }
5019: }
5020: if ($copyright eq 'domain') {
5021: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5022: unless (($env{'user.domain'} eq $1) ||
5023: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 5024: return '';
5025: }
1.262 matthew 5026: }
1.620 albertel 5027: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 5028: # Library role, so allow browsing of resources in this domain.
5029: return 'F';
1.238 www 5030: }
1.341 www 5031: if ($copyright eq 'custom') {
5032: unless (&customaccess($priv,$uri)) { return ''; }
5033: }
1.14 www 5034: }
1.264 matthew 5035: # Domain coordinator is trying to create a course
1.620 albertel 5036: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 5037: # uri is the requested domain in this case.
5038: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 5039: # a role of dc for the domain in question.
1.620 albertel 5040: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 5041: }
1.29 www 5042:
1.52 www 5043: my $thisallowed='';
5044: my $statecond=0;
5045: my $courseprivid='';
5046:
5047: # Course
5048:
1.620 albertel 5049: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5050: $thisallowed.=$1;
5051: }
1.29 www 5052:
1.52 www 5053: # Domain
5054:
1.620 albertel 5055: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 5056: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 5057: $thisallowed.=$1;
5058: }
1.52 www 5059:
5060: # Course: uri itself is a course
1.66 www 5061: my $courseuri=$uri;
5062: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 5063: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 5064:
1.620 albertel 5065: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 5066: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 5067: $thisallowed.=$1;
5068: }
1.29 www 5069:
1.665 albertel 5070: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 5071: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 5072: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 5073: $thisallowed='';
1.671 raeburn 5074: my ($match)=&is_on_map($uri);
5075: if ($match) {
5076: if ($env{'user.priv.'.$env{'request.role'}.'./'}
5077: =~/\Q$priv\E\&([^\:]*)/) {
5078: $thisallowed.=$1;
5079: }
5080: } else {
1.705 albertel 5081: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 5082: if ($refuri) {
5083: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 5084: $thisallowed='F';
1.671 raeburn 5085: } else {
5086: $refuri=&declutter($refuri);
5087: my ($match) = &is_on_map($refuri);
5088: if ($match) {
5089: $thisallowed='F';
5090: }
1.669 raeburn 5091: }
1.671 raeburn 5092: }
5093: }
1.314 www 5094: }
1.492 albertel 5095:
1.766 albertel 5096: if ($priv eq 'bre'
5097: && $thisallowed ne 'F'
5098: && $thisallowed ne '2'
5099: && &is_portfolio_url($uri)) {
5100: $thisallowed = &portfolio_access($uri);
5101: }
5102:
1.52 www 5103: # Full access at system, domain or course-wide level? Exit.
1.29 www 5104: if ($thisallowed=~/F/) {
5105: return 'F';
5106: }
5107:
1.52 www 5108: # If this is generating or modifying users, exit with special codes
1.29 www 5109:
1.643 www 5110: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
5111: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 5112: my ($audom,$auname)=split('/',$uri);
1.643 www 5113: # no author name given, so this just checks on the general right to make a co-author in this domain
5114: unless ($auname) { return $thisallowed; }
5115: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 5116: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
5117: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
5118: ($audom ne $env{'request.role.domain'}))) { return ''; }
5119: }
1.52 www 5120: return $thisallowed;
5121: }
5122: #
1.103 harris41 5123: # Gathered so far: system, domain and course wide privileges
1.52 www 5124: #
5125: # Course: See if uri or referer is an individual resource that is part of
5126: # the course
5127:
1.620 albertel 5128: if ($env{'request.course.id'}) {
1.232 www 5129:
1.620 albertel 5130: $courseprivid=$env{'request.course.id'};
5131: if ($env{'request.course.sec'}) {
5132: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 5133: }
5134: $courseprivid=~s/\_/\//;
5135: my $checkreferer=1;
1.232 www 5136: my ($match,$cond)=&is_on_map($uri);
5137: if ($match) {
5138: $statecond=$cond;
1.620 albertel 5139: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5140: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5141: $thisallowed.=$1;
5142: $checkreferer=0;
5143: }
1.29 www 5144: }
1.83 www 5145:
1.148 www 5146: if ($checkreferer) {
1.620 albertel 5147: my $refuri=$env{'httpref.'.$orguri};
1.148 www 5148: unless ($refuri) {
1.800 albertel 5149: foreach my $key (keys(%env)) {
5150: if ($key=~/^httpref\..*\*/) {
5151: my $pattern=$key;
1.156 www 5152: $pattern=~s/^httpref\.\/res\///;
1.148 www 5153: $pattern=~s/\*/\[\^\/\]\+/g;
5154: $pattern=~s/\//\\\//g;
1.152 www 5155: if ($orguri=~/$pattern/) {
1.800 albertel 5156: $refuri=$env{$key};
1.148 www 5157: }
5158: }
1.191 harris41 5159: }
1.148 www 5160: }
1.232 www 5161:
1.148 www 5162: if ($refuri) {
1.152 www 5163: $refuri=&declutter($refuri);
1.232 www 5164: my ($match,$cond)=&is_on_map($refuri);
5165: if ($match) {
5166: my $refstatecond=$cond;
1.620 albertel 5167: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5168: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5169: $thisallowed.=$1;
1.53 www 5170: $uri=$refuri;
5171: $statecond=$refstatecond;
1.52 www 5172: }
5173: }
1.148 www 5174: }
1.29 www 5175: }
1.52 www 5176: }
1.29 www 5177:
1.52 www 5178: #
1.103 harris41 5179: # Gathered now: all privileges that could apply, and condition number
1.52 www 5180: #
5181: #
5182: # Full or no access?
5183: #
1.29 www 5184:
1.52 www 5185: if ($thisallowed=~/F/) {
5186: return 'F';
5187: }
1.29 www 5188:
1.52 www 5189: unless ($thisallowed) {
5190: return '';
5191: }
1.29 www 5192:
1.52 www 5193: # Restrictions exist, deal with them
5194: #
5195: # C:according to course preferences
5196: # R:according to resource settings
5197: # L:unless locked
5198: # X:according to user session state
5199: #
5200:
5201: # Possibly locked functionality, check all courses
1.54 www 5202: # Locks might take effect only after 10 minutes cache expiration for other
5203: # courses, and 2 minutes for current course
1.52 www 5204:
5205: my $envkey;
5206: if ($thisallowed=~/L/) {
1.1000 raeburn 5207: foreach $envkey (keys(%env)) {
1.54 www 5208: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
5209: my $courseid=$2;
5210: my $roleid=$1.'.'.$2;
1.92 www 5211: $courseid=~s/^\///;
1.54 www 5212: my $expiretime=600;
1.620 albertel 5213: if ($env{'request.role'} eq $roleid) {
1.54 www 5214: $expiretime=120;
5215: }
5216: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
5217: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 5218: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 5219: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 5220: }
1.620 albertel 5221: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
5222: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
5223: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
5224: &log($env{'user.domain'},$env{'user.name'},
5225: $env{'user.home'},
1.57 www 5226: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 5227: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5228: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5229: return '';
5230: }
5231: }
1.620 albertel 5232: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
5233: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
5234: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
5235: &log($env{'user.domain'},$env{'user.name'},
5236: $env{'user.home'},
1.57 www 5237: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 5238: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5239: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5240: return '';
5241: }
5242: }
5243: }
1.29 www 5244: }
1.52 www 5245: }
5246:
5247: #
5248: # Rest of the restrictions depend on selected course
5249: #
5250:
1.620 albertel 5251: unless ($env{'request.course.id'}) {
1.766 albertel 5252: if ($thisallowed eq 'A') {
5253: return 'A';
1.814 raeburn 5254: } elsif ($thisallowed eq 'B') {
5255: return 'B';
1.766 albertel 5256: } else {
5257: return '1';
5258: }
1.52 www 5259: }
1.29 www 5260:
1.52 www 5261: #
5262: # Now user is definitely in a course
5263: #
1.53 www 5264:
5265:
5266: # Course preferences
5267:
5268: if ($thisallowed=~/C/) {
1.620 albertel 5269: my $rolecode=(split(/\./,$env{'request.role'}))[0];
5270: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
5271: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 5272: =~/\Q$rolecode\E/) {
1.689 albertel 5273: if ($priv ne 'pch') {
5274: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5275: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
5276: $env{'request.course.id'});
5277: }
1.237 www 5278: return '';
5279: }
5280:
1.620 albertel 5281: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 5282: =~/\Q$unamedom\E/) {
1.689 albertel 5283: if ($priv ne 'pch') {
5284: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
5285: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
5286: $env{'request.course.id'});
5287: }
1.54 www 5288: return '';
5289: }
1.53 www 5290: }
5291:
5292: # Resource preferences
5293:
5294: if ($thisallowed=~/R/) {
1.620 albertel 5295: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 5296: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 5297: if ($priv ne 'pch') {
5298: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5299: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
5300: }
5301: return '';
1.54 www 5302: }
1.53 www 5303: }
1.30 www 5304:
1.246 www 5305: # Restricted by state or randomout?
1.30 www 5306:
1.52 www 5307: if ($thisallowed=~/X/) {
1.620 albertel 5308: if ($env{'acc.randomout'}) {
1.579 albertel 5309: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 5310: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 5311: return '';
5312: }
1.247 www 5313: }
5314: if (&condval($statecond)) {
1.52 www 5315: return '2';
5316: } else {
5317: return '';
5318: }
5319: }
1.30 www 5320:
1.766 albertel 5321: if ($thisallowed eq 'A') {
5322: return 'A';
1.814 raeburn 5323: } elsif ($thisallowed eq 'B') {
5324: return 'B';
1.766 albertel 5325: }
1.52 www 5326: return 'F';
1.232 www 5327: }
5328:
1.710 albertel 5329: sub split_uri_for_cond {
5330: my $uri=&deversion(&declutter(shift));
5331: my @uriparts=split(/\//,$uri);
5332: my $filename=pop(@uriparts);
5333: my $pathname=join('/',@uriparts);
5334: return ($pathname,$filename);
5335: }
1.232 www 5336: # --------------------------------------------------- Is a resource on the map?
5337:
5338: sub is_on_map {
1.710 albertel 5339: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 5340: #Trying to find the conditional for the file
1.620 albertel 5341: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 5342: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 5343: if ($match) {
1.289 bowersj2 5344: return (1,$1);
5345: } else {
1.434 www 5346: return (0,0);
1.289 bowersj2 5347: }
1.12 www 5348: }
5349:
1.427 www 5350: # --------------------------------------------------------- Get symb from alias
5351:
5352: sub get_symb_from_alias {
5353: my $symb=shift;
5354: my ($map,$resid,$url)=&decode_symb($symb);
5355: # Already is a symb
5356: if ($url) { return $symb; }
5357: # Must be an alias
5358: my $aliassymb='';
5359: my %bighash;
1.620 albertel 5360: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 5361: &GDBM_READER(),0640)) {
5362: my $rid=$bighash{'mapalias_'.$symb};
5363: if ($rid) {
5364: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 5365: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
5366: $resid,$bighash{'src_'.$rid});
1.427 www 5367: }
5368: untie %bighash;
5369: }
5370: return $aliassymb;
5371: }
5372:
1.12 www 5373: # ----------------------------------------------------------------- Define Role
5374:
5375: sub definerole {
5376: if (allowed('mcr','/')) {
5377: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 5378: foreach my $role (split(':',$sysrole)) {
5379: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5380: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
5381: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
5382: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5383: return "refused:s:$crole&$cqual";
5384: }
5385: }
1.191 harris41 5386: }
1.800 albertel 5387: foreach my $role (split(':',$domrole)) {
5388: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5389: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
5390: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
5391: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 5392: return "refused:d:$crole&$cqual";
5393: }
5394: }
1.191 harris41 5395: }
1.800 albertel 5396: foreach my $role (split(':',$courole)) {
5397: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5398: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
5399: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
5400: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5401: return "refused:c:$crole&$cqual";
5402: }
5403: }
1.191 harris41 5404: }
1.620 albertel 5405: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
5406: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5407: "rolesdef_$rolename=".
5408: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 5409: return reply($command,$env{'user.home'});
1.12 www 5410: } else {
5411: return 'refused';
5412: }
1.105 harris41 5413: }
5414:
5415: # ---------------- Make a metadata query against the network of library servers
5416:
5417: sub metadata_query {
1.244 matthew 5418: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 5419: my %rhash;
1.845 albertel 5420: my %libserv = &all_library();
1.244 matthew 5421: my @server_list = (defined($server_array) ? @$server_array
5422: : keys(%libserv) );
5423: for my $server (@server_list) {
1.118 harris41 5424: unless ($custom or $customshow) {
5425: my $reply=&reply("querysend:".&escape($query),$server);
5426: $rhash{$server}=$reply;
5427: }
5428: else {
5429: my $reply=&reply("querysend:".&escape($query).':'.
5430: &escape($custom).':'.&escape($customshow),
5431: $server);
5432: $rhash{$server}=$reply;
5433: }
1.112 harris41 5434: }
1.118 harris41 5435: return \%rhash;
1.240 www 5436: }
5437:
5438: # ----------------------------------------- Send log queries and wait for reply
5439:
5440: sub log_query {
5441: my ($uname,$udom,$query,%filters)=@_;
5442: my $uhome=&homeserver($uname,$udom);
5443: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 5444: my $uhost=&hostname($uhome);
1.800 albertel 5445: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 5446: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
5447: $uhome);
1.479 albertel 5448: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 5449: return get_query_reply($queryid);
5450: }
5451:
1.818 raeburn 5452: # -------------------------- Update MySQL table for portfolio file
5453:
5454: sub update_portfolio_table {
1.821 raeburn 5455: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 5456: if ($group ne '') {
5457: $file_name =~s /^\Q$group\E//;
5458: }
1.818 raeburn 5459: my $homeserver = &homeserver($uname,$udom);
5460: my $queryid=
1.821 raeburn 5461: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
5462: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 5463: my $reply = &get_query_reply($queryid);
5464: return $reply;
5465: }
5466:
1.899 raeburn 5467: # -------------------------- Update MySQL allusers table
5468:
5469: sub update_allusers_table {
5470: my ($uname,$udom,$names) = @_;
5471: my $homeserver = &homeserver($uname,$udom);
5472: my $queryid=
5473: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
5474: 'lastname='.&escape($names->{'lastname'}).'%%'.
5475: 'firstname='.&escape($names->{'firstname'}).'%%'.
5476: 'middlename='.&escape($names->{'middlename'}).'%%'.
5477: 'generation='.&escape($names->{'generation'}).'%%'.
5478: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
5479: 'id='.&escape($names->{'id'}),$homeserver);
5480: my $reply = &get_query_reply($queryid);
5481: return $reply;
5482: }
5483:
1.508 raeburn 5484: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 5485:
5486: sub fetch_enrollment_query {
1.511 raeburn 5487: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 5488: my $homeserver;
1.547 raeburn 5489: my $maxtries = 1;
1.508 raeburn 5490: if ($context eq 'automated') {
5491: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 5492: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 5493: } else {
5494: $homeserver = &homeserver($cnum,$dom);
5495: }
1.838 albertel 5496: my $host=&hostname($homeserver);
1.506 raeburn 5497: my $cmd = '';
1.1000 raeburn 5498: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 5499: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 5500: }
5501: $cmd =~ s/%%$//;
5502: $cmd = &escape($cmd);
5503: my $query = 'fetchenrollment';
1.620 albertel 5504: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 5505: unless ($queryid=~/^\Q$host\E\_/) {
5506: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
5507: return 'error: '.$queryid;
5508: }
1.506 raeburn 5509: my $reply = &get_query_reply($queryid);
1.547 raeburn 5510: my $tries = 1;
5511: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5512: $reply = &get_query_reply($queryid);
5513: $tries ++;
5514: }
1.526 raeburn 5515: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 5516: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 5517: } else {
1.901 albertel 5518: my @responses = split(/:/,$reply);
1.515 raeburn 5519: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 5520: foreach my $line (@responses) {
5521: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 5522: $$replyref{$key} = $value;
5523: }
5524: } else {
1.506 raeburn 5525: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 5526: foreach my $line (@responses) {
5527: my ($key,$value) = split(/=/,$line);
1.506 raeburn 5528: $$replyref{$key} = $value;
5529: if ($value > 0) {
1.800 albertel 5530: foreach my $item (@{$$affiliatesref{$key}}) {
5531: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 5532: my $destname = $pathname.'/'.$filename;
5533: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 5534: if ($xml_classlist =~ /^error/) {
5535: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
5536: } else {
1.506 raeburn 5537: if ( open(FILE,">$destname") ) {
5538: print FILE &unescape($xml_classlist);
5539: close(FILE);
1.526 raeburn 5540: } else {
5541: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 5542: }
5543: }
5544: }
5545: }
5546: }
5547: }
5548: return 'ok';
5549: }
5550: return 'error';
5551: }
5552:
1.242 www 5553: sub get_query_reply {
5554: my $queryid=shift;
1.240 www 5555: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
5556: my $reply='';
5557: for (1..100) {
5558: sleep 2;
5559: if (-e $replyfile.'.end') {
1.448 albertel 5560: if (open(my $fh,$replyfile)) {
1.904 albertel 5561: $reply = join('',<$fh>);
5562: close($fh);
1.240 www 5563: } else { return 'error: reply_file_error'; }
1.242 www 5564: return &unescape($reply);
5565: }
1.240 www 5566: }
1.242 www 5567: return 'timeout:'.$queryid;
1.240 www 5568: }
5569:
5570: sub courselog_query {
1.241 www 5571: #
5572: # possible filters:
5573: # url: url or symb
5574: # username
5575: # domain
5576: # action: view, submit, grade
5577: # start: timestamp
5578: # end: timestamp
5579: #
1.240 www 5580: my (%filters)=@_;
1.620 albertel 5581: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 5582: if ($filters{'url'}) {
5583: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
5584: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
5585: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
5586: }
1.620 albertel 5587: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
5588: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 5589: return &log_query($cname,$cdom,'courselog',%filters);
5590: }
5591:
5592: sub userlog_query {
1.858 raeburn 5593: #
5594: # possible filters:
5595: # action: log check role
5596: # start: timestamp
5597: # end: timestamp
5598: #
1.240 www 5599: my ($uname,$udom,%filters)=@_;
5600: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 5601: }
5602:
1.506 raeburn 5603: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
5604:
5605: sub auto_run {
1.508 raeburn 5606: my ($cnum,$cdom) = @_;
1.876 raeburn 5607: my $response = 0;
5608: my $settings;
5609: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
5610: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
5611: $settings = $domconfig{'autoenroll'};
5612: if ($settings->{'run'} eq '1') {
5613: $response = 1;
5614: }
5615: } else {
1.934 raeburn 5616: my $homeserver;
5617: if (&is_course($cdom,$cnum)) {
5618: $homeserver = &homeserver($cnum,$cdom);
5619: } else {
5620: $homeserver = &domain($cdom,'primary');
5621: }
5622: if ($homeserver ne 'no_host') {
5623: $response = &reply('autorun:'.$cdom,$homeserver);
5624: }
1.876 raeburn 5625: }
1.506 raeburn 5626: return $response;
5627: }
1.776 albertel 5628:
1.506 raeburn 5629: sub auto_get_sections {
1.508 raeburn 5630: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 5631: my $homeserver;
5632: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5633: $homeserver = &homeserver($cnum,$cdom);
5634: }
5635: if (!defined($homeserver)) {
5636: if ($cdom =~ /^$match_domain$/) {
5637: $homeserver = &domain($cdom,'primary');
5638: }
5639: }
5640: my @secs;
5641: if (defined($homeserver)) {
5642: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
5643: unless ($response eq 'refused') {
5644: @secs = split(/:/,$response);
5645: }
1.506 raeburn 5646: }
5647: return @secs;
5648: }
1.776 albertel 5649:
1.506 raeburn 5650: sub auto_new_course {
1.508 raeburn 5651: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
5652: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 5653: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 5654: return $response;
5655: }
1.776 albertel 5656:
1.506 raeburn 5657: sub auto_validate_courseID {
1.508 raeburn 5658: my ($cnum,$cdom,$inst_course_id) = @_;
5659: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 5660: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 5661: return $response;
5662: }
1.776 albertel 5663:
1.1007 raeburn 5664: sub auto_validate_instcode {
1.1020 raeburn 5665: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 5666: my ($homeserver,$response);
5667: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5668: $homeserver = &homeserver($cnum,$cdom);
5669: }
5670: if (!defined($homeserver)) {
5671: if ($cdom =~ /^$match_domain$/) {
5672: $homeserver = &domain($cdom,'primary');
5673: }
5674: }
5675: my $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
1.1020 raeburn 5676: &escape($instcode).':'.&escape($owner),$homeserver));
1.1027 raeburn 5677: my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
5678: return ($outcome,$description);
1.1007 raeburn 5679: }
5680:
1.506 raeburn 5681: sub auto_create_password {
1.873 raeburn 5682: my ($cnum,$cdom,$authparam,$udom) = @_;
5683: my ($homeserver,$response);
1.506 raeburn 5684: my $create_passwd = 0;
5685: my $authchk = '';
1.873 raeburn 5686: if ($udom =~ /^$match_domain$/) {
5687: $homeserver = &domain($udom,'primary');
5688: }
5689: if ($homeserver eq '') {
5690: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5691: $homeserver = &homeserver($cnum,$cdom);
5692: }
5693: }
5694: if ($homeserver eq '') {
5695: $authchk = 'nodomain';
1.506 raeburn 5696: } else {
1.873 raeburn 5697: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
5698: if ($response eq 'refused') {
5699: $authchk = 'refused';
5700: } else {
1.901 albertel 5701: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 5702: }
1.506 raeburn 5703: }
5704: return ($authparam,$create_passwd,$authchk);
5705: }
5706:
1.706 raeburn 5707: sub auto_photo_permission {
5708: my ($cnum,$cdom,$students) = @_;
5709: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 5710: my ($outcome,$perm_reqd,$conditions) =
5711: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 5712: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5713: return (undef,undef);
5714: }
1.706 raeburn 5715: return ($outcome,$perm_reqd,$conditions);
5716: }
5717:
5718: sub auto_checkphotos {
5719: my ($uname,$udom,$pid) = @_;
5720: my $homeserver = &homeserver($uname,$udom);
5721: my ($result,$resulttype);
5722: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 5723: &escape($uname).':'.&escape($pid),
5724: $homeserver));
1.709 albertel 5725: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5726: return (undef,undef);
5727: }
1.706 raeburn 5728: if ($outcome) {
5729: ($result,$resulttype) = split(/:/,$outcome);
5730: }
5731: return ($result,$resulttype);
5732: }
5733:
5734: sub auto_photochoice {
5735: my ($cnum,$cdom) = @_;
5736: my $homeserver = &homeserver($cnum,$cdom);
5737: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 5738: &escape($cdom),
5739: $homeserver)));
1.709 albertel 5740: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5741: return (undef,undef);
5742: }
1.706 raeburn 5743: return ($update,$comment);
5744: }
5745:
5746: sub auto_photoupdate {
5747: my ($affiliatesref,$dom,$cnum,$photo) = @_;
5748: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 5749: my $host=&hostname($homeserver);
1.706 raeburn 5750: my $cmd = '';
5751: my $maxtries = 1;
1.800 albertel 5752: foreach my $affiliate (keys(%{$affiliatesref})) {
5753: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 5754: }
5755: $cmd =~ s/%%$//;
5756: $cmd = &escape($cmd);
5757: my $query = 'institutionalphotos';
5758: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
5759: unless ($queryid=~/^\Q$host\E\_/) {
5760: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
5761: return 'error: '.$queryid;
5762: }
5763: my $reply = &get_query_reply($queryid);
5764: my $tries = 1;
5765: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5766: $reply = &get_query_reply($queryid);
5767: $tries ++;
5768: }
5769: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
5770: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
5771: } else {
5772: my @responses = split(/:/,$reply);
5773: my $outcome = shift(@responses);
5774: foreach my $item (@responses) {
5775: my ($key,$value) = split(/=/,$item);
5776: $$photo{$key} = $value;
5777: }
5778: return $outcome;
5779: }
5780: return 'error';
5781: }
5782:
1.521 raeburn 5783: sub auto_instcode_format {
1.793 albertel 5784: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
5785: $cat_order) = @_;
1.521 raeburn 5786: my $courses = '';
1.772 raeburn 5787: my @homeservers;
1.521 raeburn 5788: if ($caller eq 'global') {
1.841 albertel 5789: my %servers = &get_servers($codedom,'library');
5790: foreach my $tryserver (keys(%servers)) {
5791: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5792: push(@homeservers,$tryserver);
5793: }
1.584 raeburn 5794: }
1.1022 raeburn 5795: } elsif ($caller eq 'requests') {
5796: if ($codedom =~ /^$match_domain$/) {
5797: my $chome = &domain($codedom,'primary');
5798: unless ($chome eq 'no_host') {
5799: push(@homeservers,$chome);
5800: }
5801: }
1.521 raeburn 5802: } else {
1.772 raeburn 5803: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 5804: }
1.793 albertel 5805: foreach my $code (keys(%{$instcodes})) {
5806: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 5807: }
5808: chop($courses);
1.772 raeburn 5809: my $ok_response = 0;
5810: my $response;
5811: while (@homeservers > 0 && $ok_response == 0) {
5812: my $server = shift(@homeservers);
5813: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
5814: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
5815: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 5816: split(/:/,$response);
1.772 raeburn 5817: %{$codes} = (%{$codes},&str2hash($codes_str));
5818: push(@{$codetitles},&str2array($codetitles_str));
5819: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
5820: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
5821: $ok_response = 1;
5822: }
5823: }
5824: if ($ok_response) {
1.521 raeburn 5825: return 'ok';
1.772 raeburn 5826: } else {
5827: return $response;
1.521 raeburn 5828: }
5829: }
5830:
1.792 raeburn 5831: sub auto_instcode_defaults {
5832: my ($domain,$returnhash,$code_order) = @_;
5833: my @homeservers;
1.841 albertel 5834:
5835: my %servers = &get_servers($domain,'library');
5836: foreach my $tryserver (keys(%servers)) {
5837: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5838: push(@homeservers,$tryserver);
5839: }
1.792 raeburn 5840: }
1.841 albertel 5841:
1.792 raeburn 5842: my $response;
1.841 albertel 5843: foreach my $server (@homeservers) {
1.792 raeburn 5844: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 5845: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
5846:
5847: foreach my $pair (split(/\&/,$response)) {
5848: my ($name,$value)=split(/\=/,$pair);
5849: if ($name eq 'code_order') {
5850: @{$code_order} = split(/\&/,&unescape($value));
5851: } else {
5852: $returnhash->{&unescape($name)}=&unescape($value);
5853: }
5854: }
5855: return 'ok';
1.792 raeburn 5856: }
1.841 albertel 5857:
5858: return $response;
1.1003 raeburn 5859: }
5860:
5861: sub auto_possible_instcodes {
1.1007 raeburn 5862: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
5863: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
5864: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
5865: return;
5866: }
1.1003 raeburn 5867: my (@homeservers,$uhome);
5868: if (defined(&domain($domain,'primary'))) {
5869: $uhome=&domain($domain,'primary');
5870: push(@homeservers,&domain($domain,'primary'));
5871: } else {
5872: my %servers = &get_servers($domain,'library');
5873: foreach my $tryserver (keys(%servers)) {
5874: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5875: push(@homeservers,$tryserver);
5876: }
5877: }
5878: }
5879: my $response;
5880: foreach my $server (@homeservers) {
5881: $response=&reply('autopossibleinstcodes:'.$domain,$server);
5882: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 5883: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
5884: split(':',$response);
5885: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
5886: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 5887: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 5888: my ($name,$value)=split('=',$item);
5889: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5890: }
5891: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 5892: my ($name,$value)=split('=',$item);
5893: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5894: }
5895: return 'ok';
5896: }
5897: return $response;
5898: }
1.792 raeburn 5899:
1.1010 raeburn 5900: sub auto_courserequest_checks {
5901: my ($dom) = @_;
1.1020 raeburn 5902: my ($homeserver,%validations);
5903: if ($dom =~ /^$match_domain$/) {
5904: $homeserver = &domain($dom,'primary');
5905: }
5906: unless ($homeserver eq 'no_host') {
5907: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
5908: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
5909: my @items = split(/&/,$response);
5910: foreach my $item (@items) {
5911: my ($key,$value) = split('=',$item);
5912: $validations{&unescape($key)} = &thaw_unescape($value);
5913: }
5914: }
5915: }
1.1010 raeburn 5916: return %validations;
5917: }
5918:
1.1020 raeburn 5919: sub auto_courserequest_validation {
5920: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
5921: my ($homeserver,$response);
5922: if ($dom =~ /^$match_domain$/) {
5923: $homeserver = &domain($dom,'primary');
5924: }
5925: unless ($homeserver eq 'no_host') {
1.1021 raeburn 5926:
1.1020 raeburn 5927: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
1.1021 raeburn 5928: ':'.&escape($crstype).':'.&escape($inststatuslist).
1.1020 raeburn 5929: ':'.&escape($instcode).':'.&escape($instseclist),
5930: $homeserver));
5931: }
5932: return $response;
5933: }
5934:
1.777 albertel 5935: sub auto_validate_class_sec {
1.918 raeburn 5936: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 5937: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 5938: my $ownerlist;
5939: if (ref($owners) eq 'ARRAY') {
5940: $ownerlist = join(',',@{$owners});
5941: } else {
5942: $ownerlist = $owners;
5943: }
1.773 raeburn 5944: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 5945: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 5946: return $response;
5947: }
5948:
1.679 raeburn 5949: # ------------------------------------------------------- Course Group routines
5950:
5951: sub get_coursegroups {
1.809 raeburn 5952: my ($cdom,$cnum,$group,$namespace) = @_;
5953: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 5954: }
5955:
1.679 raeburn 5956: sub modify_coursegroup {
5957: my ($cdom,$cnum,$groupsettings) = @_;
5958: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
5959: }
5960:
1.809 raeburn 5961: sub toggle_coursegroup_status {
5962: my ($cdom,$cnum,$group,$action) = @_;
5963: my ($from_namespace,$to_namespace);
5964: if ($action eq 'delete') {
5965: $from_namespace = 'coursegroups';
5966: $to_namespace = 'deleted_groups';
5967: } else {
5968: $from_namespace = 'deleted_groups';
5969: $to_namespace = 'coursegroups';
5970: }
5971: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 5972: if (my $tmp = &error(%curr_group)) {
5973: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
5974: return ('read error',$tmp);
5975: } else {
5976: my %savedsettings = %curr_group;
1.809 raeburn 5977: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 5978: my $deloutcome;
5979: if ($result eq 'ok') {
1.809 raeburn 5980: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 5981: } else {
5982: return ('write error',$result);
5983: }
5984: if ($deloutcome eq 'ok') {
5985: return 'ok';
5986: } else {
5987: return ('delete error',$deloutcome);
5988: }
5989: }
5990: }
5991:
1.679 raeburn 5992: sub modify_group_roles {
1.957 raeburn 5993: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 5994: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
5995: my $role = 'gr/'.&escape($userprivs);
5996: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 5997: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 5998: if ($result eq 'ok') {
5999: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
6000: }
1.679 raeburn 6001: return $result;
6002: }
6003:
6004: sub modify_coursegroup_membership {
6005: my ($cdom,$cnum,$membership) = @_;
6006: my $result = &put('groupmembership',$membership,$cdom,$cnum);
6007: return $result;
6008: }
6009:
1.682 raeburn 6010: sub get_active_groups {
6011: my ($udom,$uname,$cdom,$cnum) = @_;
6012: my $now = time;
6013: my %groups = ();
6014: foreach my $key (keys(%env)) {
1.811 albertel 6015: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 6016: my ($start,$end) = split(/\./,$env{$key});
6017: if (($end!=0) && ($end<$now)) { next; }
6018: if (($start!=0) && ($start>$now)) { next; }
6019: if ($1 eq $cdom && $2 eq $cnum) {
6020: $groups{$3} = $env{$key} ;
6021: }
6022: }
6023: }
6024: return %groups;
6025: }
6026:
1.683 raeburn 6027: sub get_group_membership {
6028: my ($cdom,$cnum,$group) = @_;
6029: return(&dump('groupmembership',$cdom,$cnum,$group));
6030: }
6031:
6032: sub get_users_groups {
6033: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 6034: my @usersgroups;
1.683 raeburn 6035: my $cachetime=1800;
6036:
6037: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 6038: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
6039: if (defined($cached)) {
1.734 albertel 6040: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 6041: } else {
6042: $grouplist = '';
1.816 raeburn 6043: my $courseurl = &courseid_to_courseurl($courseid);
6044: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 6045: my $access_end = $env{'course.'.$courseid.
6046: '.default_enrollment_end_date'};
6047: my $now = time;
6048: foreach my $key (keys(%roleshash)) {
6049: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
6050: my $group = $1;
6051: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
6052: my $start = $2;
6053: my $end = $1;
6054: if ($start == -1) { next; } # deleted from group
6055: if (($start!=0) && ($start>$now)) { next; }
6056: if (($end!=0) && ($end<$now)) {
6057: if ($access_end && $access_end < $now) {
6058: if ($access_end - $end < 86400) {
6059: push(@usersgroups,$group);
1.733 raeburn 6060: }
6061: }
1.817 raeburn 6062: next;
1.733 raeburn 6063: }
1.817 raeburn 6064: push(@usersgroups,$group);
1.683 raeburn 6065: }
6066: }
6067: }
1.817 raeburn 6068: @usersgroups = &sort_course_groups($courseid,@usersgroups);
6069: $grouplist = join(':',@usersgroups);
6070: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 6071: }
1.733 raeburn 6072: return @usersgroups;
1.683 raeburn 6073: }
6074:
6075: sub devalidate_getgroups_cache {
6076: my ($udom,$uname,$cdom,$cnum)=@_;
6077: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 6078:
1.683 raeburn 6079: my $hashid="$udom:$uname:$courseid";
6080: &devalidate_cache_new('getgroups',$hashid);
6081: }
6082:
1.12 www 6083: # ------------------------------------------------------------------ Plain Text
6084:
6085: sub plaintext {
1.988 raeburn 6086: my ($short,$type,$cid,$forcedefault) = @_;
1.758 albertel 6087: if ($short =~ /^cr/) {
6088: return (split('/',$short))[-1];
6089: }
1.742 raeburn 6090: if (!defined($cid)) {
6091: $cid = $env{'request.course.id'};
6092: }
1.988 raeburn 6093: if (defined($cid) && ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '')) {
6094: unless ($forcedefault) {
6095: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
6096: &Apache::lonlocal::mt_escape(\$roletext);
6097: return &Apache::lonlocal::mt($roletext);
6098: }
1.742 raeburn 6099: }
6100: my %rolenames = (
1.1008 raeburn 6101: Course => 'std',
6102: Community => 'alt1',
1.742 raeburn 6103: );
6104: if (defined($type) &&
6105: defined($rolenames{$type}) &&
6106: defined($prp{$short}{$rolenames{$type}})) {
6107: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
6108: } else {
6109: return &Apache::lonlocal::mt($prp{$short}{'std'});
6110: }
1.12 www 6111: }
6112:
6113: # ----------------------------------------------------------------- Assign Role
6114:
6115: sub assignrole {
1.957 raeburn 6116: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
6117: $context)=@_;
1.21 www 6118: my $mrole;
6119: if ($role =~ /^cr\//) {
1.393 www 6120: my $cwosec=$url;
1.811 albertel 6121: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 6122: unless (&allowed('ccr',$cwosec)) {
1.1026 raeburn 6123: my $refused = 1;
6124: if ($context eq 'requestcourses') {
6125: if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
6126: if ($role =~ m{^cr/($match_domain)/($match_username)/([^/]+)$}) {
6127: if (($1 eq $env{'user.domain'}) && ($2 eq $env{'user.name'})) {
6128: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
6129: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6130: if ($crsenv{'internal.courseowner'} eq
6131: $env{'user.name'}.':'.$env{'user.domain'}) {
6132: $refused = '';
6133: }
6134: }
6135: }
6136: }
6137: }
6138: if ($refused) {
6139: &logthis('Refused custom assignrole: '.
6140: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.
6141: ' by '.$env{'user.name'}.' at '.$env{'user.domain'});
6142: return 'refused';
6143: }
1.104 www 6144: }
1.21 www 6145: $mrole='cr';
1.678 raeburn 6146: } elsif ($role =~ /^gr\//) {
6147: my $cwogrp=$url;
1.811 albertel 6148: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 6149: unless (&allowed('mdg',$cwogrp)) {
6150: &logthis('Refused group assignrole: '.
6151: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
6152: $env{'user.name'}.' at '.$env{'user.domain'});
6153: return 'refused';
6154: }
6155: $mrole='gr';
1.21 www 6156: } else {
1.82 www 6157: my $cwosec=$url;
1.811 albertel 6158: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 6159: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
6160: my $refused;
6161: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
6162: if (!(&allowed('c'.$role,$url))) {
6163: $refused = 1;
6164: }
6165: } else {
6166: $refused = 1;
6167: }
1.947 raeburn 6168: if ($refused) {
6169: if (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6170: $refused = '';
1.1017 raeburn 6171: } elsif ($context eq 'requestcourses') {
1.1026 raeburn 6172: my @possroles = ('st','ta','ep','in','cc');
6173: if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
6174: my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
1.1017 raeburn 6175: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6176: if ($crsenv{'internal.courseowner'} eq
6177: $env{'user.name'}.':'.$env{'user.domain'}) {
6178: $refused = '';
6179: }
6180: }
6181: }
6182: if ($refused) {
1.947 raeburn 6183: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
6184: ' '.$role.' '.$end.' '.$start.' by '.
6185: $env{'user.name'}.' at '.$env{'user.domain'});
6186: return 'refused';
6187: }
1.932 raeburn 6188: }
1.104 www 6189: }
1.21 www 6190: $mrole=$role;
6191: }
1.620 albertel 6192: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 6193: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 6194: if ($end) { $command.='_'.$end; }
1.21 www 6195: if ($start) {
6196: if ($end) {
1.81 www 6197: $command.='_'.$start;
1.21 www 6198: } else {
1.81 www 6199: $command.='_0_'.$start;
1.21 www 6200: }
6201: }
1.739 raeburn 6202: my $origstart = $start;
6203: my $origend = $end;
1.957 raeburn 6204: my $delflag;
1.357 www 6205: # actually delete
6206: if ($deleteflag) {
1.373 www 6207: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 6208: # modify command to delete the role
1.620 albertel 6209: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 6210: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 6211: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 6212: # set start and finish to negative values for userrolelog
6213: $start=-1;
6214: $end=-1;
1.957 raeburn 6215: $delflag = 1;
1.357 www 6216: }
6217: }
6218: # send command
1.349 www 6219: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 6220: # log new user role if status is ok
1.349 www 6221: if ($answer eq 'ok') {
1.663 raeburn 6222: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 6223: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 6224: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 6225: unless ($role =~ /^gr/) {
6226: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 6227: $origstart,$selfenroll,$context);
1.739 raeburn 6228: }
1.349 www 6229: }
6230: return $answer;
1.169 harris41 6231: }
6232:
6233: # -------------------------------------------------- Modify user authentication
1.197 www 6234: # Overrides without validation
6235:
1.169 harris41 6236: sub modifyuserauth {
6237: my ($udom,$uname,$umode,$upass)=@_;
6238: my $uhome=&homeserver($uname,$udom);
1.197 www 6239: unless (&allowed('mau',$udom)) { return 'refused'; }
6240: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 6241: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6242: ' in domain '.$env{'request.role.domain'});
1.169 harris41 6243: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
6244: &escape($upass),$uhome);
1.620 albertel 6245: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 6246: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
6247: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
6248: &log($udom,,$uname,$uhome,
1.620 albertel 6249: 'Authentication changed by '.$env{'user.domain'}.', '.
6250: $env{'user.name'}.', '.$umode.
1.197 www 6251: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 6252: unless ($reply eq 'ok') {
1.197 www 6253: &logthis('Authentication mode error: '.$reply);
1.169 harris41 6254: return 'error: '.$reply;
6255: }
1.170 harris41 6256: return 'ok';
1.80 www 6257: }
6258:
1.81 www 6259: # --------------------------------------------------------------- Modify a user
1.80 www 6260:
1.81 www 6261: sub modifyuser {
1.206 matthew 6262: my ($udom, $uname, $uid,
6263: $umode, $upass, $first,
6264: $middle, $last, $gene,
1.963 raeburn 6265: $forceid, $desiredhome, $email, $inststatus)=@_;
1.807 albertel 6266: $udom= &LONCAPA::clean_domain($udom);
6267: $uname=&LONCAPA::clean_username($uname);
1.81 www 6268: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 6269: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 6270: $last.', '.$gene.'(forceid: '.$forceid.')'.
6271: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
6272: ' desiredhome not specified').
1.620 albertel 6273: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6274: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 6275: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 6276: # ----------------------------------------------------------------- Create User
1.406 albertel 6277: if (($uhome eq 'no_host') &&
6278: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 6279: my $unhome='';
1.844 albertel 6280: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 6281: $unhome = $desiredhome;
1.620 albertel 6282: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
6283: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 6284: } else { # load balancing routine for determining $unhome
1.81 www 6285: my $loadm=10000000;
1.841 albertel 6286: my %servers = &get_servers($udom,'library');
6287: foreach my $tryserver (keys(%servers)) {
6288: my $answer=reply('load',$tryserver);
6289: if (($answer=~/\d+/) && ($answer<$loadm)) {
6290: $loadm=$answer;
6291: $unhome=$tryserver;
6292: }
1.80 www 6293: }
6294: }
6295: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 6296: return 'error: unable to find a home server for '.$uname.
6297: ' in domain '.$udom;
1.80 www 6298: }
6299: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
6300: &escape($upass),$unhome);
6301: unless ($reply eq 'ok') {
6302: return 'error: '.$reply;
6303: }
1.230 stredwic 6304: $uhome=&homeserver($uname,$udom,'true');
1.80 www 6305: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 6306: return 'error: unable verify users home machine.';
1.80 www 6307: }
1.209 matthew 6308: } # End of creation of new user
1.80 www 6309: # ---------------------------------------------------------------------- Add ID
6310: if ($uid) {
6311: $uid=~tr/A-Z/a-z/;
6312: my %uidhash=&idrget($udom,$uname);
1.196 www 6313: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
6314: && (!$forceid)) {
1.80 www 6315: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 6316: return 'error: user id "'.$uid.'" does not match '.
6317: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 6318: }
6319: } else {
6320: &idput($udom,($uname => $uid));
6321: }
6322: }
6323: # -------------------------------------------------------------- Add names, etc
1.313 matthew 6324: my @tmp=&get('environment',
1.899 raeburn 6325: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 6326: 'permanentemail','inststatus'],
1.134 albertel 6327: $udom,$uname);
1.313 matthew 6328: my %names;
6329: if ($tmp[0] =~ m/^error:.*/) {
6330: %names=();
6331: } else {
6332: %names = @tmp;
6333: }
1.388 www 6334: #
6335: # Make sure to not trash student environment if instructor does not bother
6336: # to supply name and email information
6337: #
6338: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 6339: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 6340: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 6341: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 6342: if ($email) {
6343: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 6344: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 6345: }
1.899 raeburn 6346: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 6347: if (defined($inststatus)) {
6348: $names{'inststatus'} = '';
6349: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
6350: if (ref($usertypes) eq 'HASH') {
6351: my @okstatuses;
6352: foreach my $item (split(/:/,$inststatus)) {
6353: if (defined($usertypes->{$item})) {
6354: push(@okstatuses,$item);
6355: }
6356: }
6357: if (@okstatuses) {
6358: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
6359: }
6360: }
6361: }
1.134 albertel 6362: my $reply = &put('environment', \%names, $udom,$uname);
6363: if ($reply ne 'ok') { return 'error: '.$reply; }
1.899 raeburn 6364: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
1.680 www 6365: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.963 raeburn 6366: my $logmsg = 'Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
6367: $umode.', '.$first.', '.$middle.', '.
6368: $last.', '.$gene.', '.$email.', '.$inststatus;
6369: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
6370: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
6371: } else {
6372: $logmsg .= ' during self creation';
6373: }
6374: &logthis($logmsg);
1.134 albertel 6375: return 'ok';
1.80 www 6376: }
6377:
1.81 www 6378: # -------------------------------------------------------------- Modify student
1.80 www 6379:
1.81 www 6380: sub modifystudent {
6381: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 6382: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 6383: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 6384: if (!$cid) {
1.620 albertel 6385: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6386: return 'not_in_class';
6387: }
1.80 www 6388: }
6389: # --------------------------------------------------------------- Make the user
1.81 www 6390: my $reply=&modifyuser
1.209 matthew 6391: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 6392: $desiredhome,$email,$inststatus);
1.80 www 6393: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 6394: # This will cause &modify_student_enrollment to get the uid from the
6395: # students environment
6396: $uid = undef if (!$forceid);
1.455 albertel 6397: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 6398: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 6399: return $reply;
6400: }
6401:
6402: sub modify_student_enrollment {
1.957 raeburn 6403: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 6404: my ($cdom,$cnum,$chome);
6405: if (!$cid) {
1.620 albertel 6406: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6407: return 'not_in_class';
6408: }
1.620 albertel 6409: $cdom=$env{'course.'.$cid.'.domain'};
6410: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 6411: } else {
6412: ($cdom,$cnum)=split(/_/,$cid);
6413: }
1.620 albertel 6414: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 6415: if (!$chome) {
1.457 raeburn 6416: $chome=&homeserver($cnum,$cdom);
1.297 matthew 6417: }
1.455 albertel 6418: if (!$chome) { return 'unknown_course'; }
1.297 matthew 6419: # Make sure the user exists
1.81 www 6420: my $uhome=&homeserver($uname,$udom);
6421: if (($uhome eq '') || ($uhome eq 'no_host')) {
6422: return 'error: no such user';
6423: }
1.297 matthew 6424: # Get student data if we were not given enough information
6425: if (!defined($first) || $first eq '' ||
6426: !defined($last) || $last eq '' ||
6427: !defined($uid) || $uid eq '' ||
6428: !defined($middle) || $middle eq '' ||
6429: !defined($gene) || $gene eq '') {
1.294 matthew 6430: # They did not supply us with enough data to enroll the student, so
6431: # we need to pick up more information.
1.297 matthew 6432: my %tmp = &get('environment',
1.294 matthew 6433: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 6434: ,$udom,$uname);
6435:
1.800 albertel 6436: #foreach my $key (keys(%tmp)) {
6437: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 6438: #}
1.294 matthew 6439: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
6440: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
6441: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 6442: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 6443: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
6444: }
1.556 albertel 6445: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 6446: my $reply=cput('classlist',
6447: {"$uname:$udom" =>
1.515 raeburn 6448: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 6449: $cdom,$cnum);
1.81 www 6450: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
6451: return 'error: '.$reply;
1.652 albertel 6452: } else {
6453: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 6454: }
1.297 matthew 6455: # Add student role to user
1.83 www 6456: my $uurl='/'.$cid;
1.81 www 6457: $uurl=~s/\_/\//g;
6458: if ($usec) {
6459: $uurl.='/'.$usec;
6460: }
1.957 raeburn 6461: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 6462: }
6463:
1.556 albertel 6464: sub format_name {
6465: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
6466: my $name;
6467: if ($first ne 'lastname') {
6468: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
6469: } else {
6470: if ($lastname=~/\S/) {
6471: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
6472: $name=~s/\s+,/,/;
6473: } else {
6474: $name.= $firstname.' '.$middlename.' '.$generation;
6475: }
6476: }
6477: $name=~s/^\s+//;
6478: $name=~s/\s+$//;
6479: $name=~s/\s+/ /g;
6480: return $name;
6481: }
6482:
1.84 www 6483: # ------------------------------------------------- Write to course preferences
6484:
6485: sub writecoursepref {
6486: my ($courseid,%prefs)=@_;
6487: $courseid=~s/^\///;
6488: $courseid=~s/\_/\//g;
6489: my ($cdomain,$cnum)=split(/\//,$courseid);
6490: my $chome=homeserver($cnum,$cdomain);
6491: if (($chome eq '') || ($chome eq 'no_host')) {
6492: return 'error: no such course';
6493: }
6494: my $cstring='';
1.800 albertel 6495: foreach my $pref (keys(%prefs)) {
6496: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 6497: }
1.84 www 6498: $cstring=~s/\&$//;
6499: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
6500: }
6501:
6502: # ---------------------------------------------------------- Make/modify course
6503:
6504: sub createcourse {
1.741 raeburn 6505: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 6506: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 6507: $url=&declutter($url);
6508: my $cid='';
1.1028 raeburn 6509: if ($context eq 'requestcourses') {
6510: my $can_create = 0;
6511: my ($ownername,$ownerdom) = split(':',$course_owner);
6512: if ($udom eq $ownerdom) {
6513: if (&usertools_access($ownername,$ownerdom,$category,undef,
6514: $context)) {
6515: $can_create = 1;
6516: }
6517: } else {
6518: my %userenv = &userenvironment($ownerdom,$ownername,'reqcrsotherdom.'.
6519: $category);
6520: if ($userenv{'reqcrsotherdom.'.$category} ne '') {
6521: my @curr = split(',',$userenv{'reqcrsotherdom.'.$category});
6522: if (@curr > 0) {
6523: my @options = qw(approval validate autolimit);
6524: my $optregex = join('|',@options);
6525: if (grep(/^\Q$udom\E:($optregex)(=?\d*)$/,@curr)) {
6526: $can_create = 1;
6527: }
6528: }
6529: }
6530: }
6531: if ($can_create) {
6532: unless ($ownername eq $env{'user.name'} && $ownerdom eq $env{'user.domain'}) {
6533: unless (&allowed('ccc',$udom)) {
6534: return 'refused';
6535: }
1.1017 raeburn 6536: }
6537: } else {
6538: return 'refused';
6539: }
1.1028 raeburn 6540: } elsif (!&allowed('ccc',$udom)) {
6541: return 'refused';
1.84 www 6542: }
1.1011 raeburn 6543: # --------------------------------------------------------------- Get Unique ID
6544: my $uname;
6545: if ($cnum =~ /^$match_courseid$/) {
6546: my $chome=&homeserver($cnum,$udom,'true');
6547: if (($chome eq '') || ($chome eq 'no_host')) {
6548: $uname = $cnum;
6549: } else {
6550: $uname = &generate_coursenum($udom);
6551: }
6552: } else {
6553: $uname = &generate_coursenum($udom);
6554: }
6555: return $uname if ($uname =~ /^error/);
6556: # -------------------------------------------------- Check supplied server name
1.620 albertel 6557: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 6558: if (! &is_library($course_server)) {
1.264 matthew 6559: return 'error:bad server name '.$course_server;
6560: }
1.84 www 6561: # ------------------------------------------------------------- Make the course
6562: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 6563: $course_server);
1.84 www 6564: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 6565: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 6566: if (($uhome eq '') || ($uhome eq 'no_host')) {
6567: return 'error: no such course';
6568: }
1.271 www 6569: # ----------------------------------------------------------------- Course made
1.516 raeburn 6570: # log existence
1.1029 raeburn 6571: my $now = time;
1.918 raeburn 6572: my $newcourse = {
6573: $udom.'_'.$uname => {
1.921 raeburn 6574: description => $description,
6575: inst_code => $inst_code,
6576: owner => $course_owner,
6577: type => $crstype,
1.1029 raeburn 6578: creator => $env{'user.name'}.':'.
6579: $env{'user.domain'},
6580: created => $now,
6581: context => $context,
1.918 raeburn 6582: },
6583: };
1.921 raeburn 6584: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 6585: # set toplevel url
1.271 www 6586: my $topurl=$url;
6587: unless ($nonstandard) {
6588: # ------------------------------------------ For standard courses, make top url
6589: my $mapurl=&clutter($url);
1.278 www 6590: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 6591: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 6592: <map>
6593: <resource id="1" type="start"></resource>
6594: <resource id="2" src="$mapurl"></resource>
6595: <resource id="3" type="finish"></resource>
6596: <link index="1" from="1" to="2"></link>
6597: <link index="2" from="2" to="3"></link>
6598: </map>
6599: ENDINITMAP
6600: $topurl=&declutter(
1.638 albertel 6601: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 6602: );
6603: }
6604: # ----------------------------------------------------------- Write preferences
1.84 www 6605: &writecoursepref($udom.'_'.$uname,
6606: ('description' => $description,
1.271 www 6607: 'url' => $topurl));
1.84 www 6608: return '/'.$udom.'/'.$uname;
6609: }
6610:
1.1011 raeburn 6611: # ------------------------------------------------------------------- Create ID
6612: sub generate_coursenum {
6613: my ($udom) = @_;
6614: my $domdesc = &domain($udom);
6615: return 'error: invalid domain' if ($domdesc eq '');
6616: my $uname=int(1+rand(9)).
6617: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
6618: substr($$.time,0,5).unpack("H8",pack("I32",time)).
6619: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
6620: # ----------------------------------------------- Make sure that does not exist
6621: my $uhome=&homeserver($uname,$udom,'true');
6622: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6623: $uname=int(1+rand(9)).
6624: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
6625: substr($$.time,0,5).unpack("H8",pack("I32",time)).
6626: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
6627: $uhome=&homeserver($uname,$udom,'true');
6628: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6629: return 'error: unable to generate unique course-ID';
6630: }
6631: }
6632: return $uname;
6633: }
6634:
1.813 albertel 6635: sub is_course {
6636: my ($cdom,$cnum) = @_;
6637: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 6638: undef,'.');
1.813 albertel 6639: if (exists($courses{$cdom.'_'.$cnum})) {
6640: return 1;
6641: }
6642: return 0;
6643: }
6644:
1.1015 raeburn 6645: sub store_userdata {
6646: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 6647: my $result;
1.1016 raeburn 6648: if ($datakey ne '') {
1.1013 raeburn 6649: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 6650: if ($udom eq '' || $uname eq '') {
6651: $udom = $env{'user.domain'};
6652: $uname = $env{'user.name'};
6653: }
6654: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 6655: if (($uhome eq '') || ($uhome eq 'no_host')) {
6656: $result = 'error: no_host';
6657: } else {
6658: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
6659: $storehash->{'host'} = $perlvar{'lonHostID'};
6660:
6661: my $namevalue='';
6662: foreach my $key (keys(%{$storehash})) {
6663: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6664: }
6665: $namevalue=~s/\&$//;
6666: $result = &reply("store:$env{'user.domain'}:$env{'user.name'}:".
1.1015 raeburn 6667: "$namespace:$datakey:$namevalue",$uhome);
1.1013 raeburn 6668: }
6669: } else {
6670: $result = 'error: data to store was not a hash reference';
6671: }
6672: } else {
6673: $result= 'error: invalid requestkey';
6674: }
6675: return $result;
6676: }
6677:
1.21 www 6678: # ---------------------------------------------------------- Assign Custom Role
6679:
6680: sub assigncustomrole {
1.957 raeburn 6681: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6682: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 6683: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 6684: }
6685:
6686: # ----------------------------------------------------------------- Revoke Role
6687:
6688: sub revokerole {
1.957 raeburn 6689: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6690: my $now=time;
1.965 raeburn 6691: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 6692: }
6693:
6694: # ---------------------------------------------------------- Revoke Custom Role
6695:
6696: sub revokecustomrole {
1.957 raeburn 6697: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6698: my $now=time;
1.357 www 6699: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 6700: $deleteflag,$selfenroll,$context);
1.17 www 6701: }
6702:
1.533 banghart 6703: # ------------------------------------------------------------ Disk usage
1.535 albertel 6704: sub diskusage {
1.955 raeburn 6705: my ($udom,$uname,$directorypath,$getpropath)=@_;
6706: $directorypath =~ s/\/$//;
6707: my $listing=&reply('du2:'.&escape($directorypath).':'
6708: .&escape($getpropath).':'.&escape($uname).':'
6709: .&escape($udom),homeserver($uname,$udom));
6710: if ($listing eq 'unknown_cmd') {
6711: if ($getpropath) {
6712: $directorypath = &propath($udom,$uname).'/'.$directorypath;
6713: }
6714: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
6715: }
1.514 albertel 6716: return $listing;
1.512 banghart 6717: }
6718:
1.566 banghart 6719: sub is_locked {
6720: my ($file_name, $domain, $user) = @_;
6721: my @check;
6722: my $is_locked;
6723: push @check, $file_name;
1.613 albertel 6724: my %locked = &get('file_permissions',\@check,
1.620 albertel 6725: $env{'user.domain'},$env{'user.name'});
1.615 albertel 6726: my ($tmp)=keys(%locked);
6727: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 6728:
1.566 banghart 6729: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 6730: $is_locked = 'false';
6731: foreach my $entry (@{$locked{$file_name}}) {
6732: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 6733: $is_locked = 'true';
6734: last;
1.745 raeburn 6735: }
6736: }
1.566 banghart 6737: } else {
6738: $is_locked = 'false';
6739: }
6740: }
6741:
1.759 albertel 6742: sub declutter_portfile {
6743: my ($file) = @_;
1.833 albertel 6744: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 6745: return $file;
6746: }
6747:
1.559 banghart 6748: # ------------------------------------------------------------- Mark as Read Only
6749:
6750: sub mark_as_readonly {
6751: my ($domain,$user,$files,$what) = @_;
1.613 albertel 6752: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6753: my ($tmp)=keys(%current_permissions);
6754: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 6755: foreach my $file (@{$files}) {
1.759 albertel 6756: $file = &declutter_portfile($file);
1.561 banghart 6757: push(@{$current_permissions{$file}},$what);
1.559 banghart 6758: }
1.613 albertel 6759: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 6760: return;
6761: }
6762:
1.572 banghart 6763: # ------------------------------------------------------------Save Selected Files
6764:
6765: sub save_selected_files {
6766: my ($user, $path, @files) = @_;
6767: my $filename = $user."savedfiles";
1.573 banghart 6768: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 6769: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 6770: foreach my $file (@files) {
1.620 albertel 6771: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 6772: }
6773: foreach my $file (@other_files) {
1.574 banghart 6774: print (OUT $file."\n");
1.572 banghart 6775: }
1.574 banghart 6776: close (OUT);
1.572 banghart 6777: return 'ok';
6778: }
6779:
1.574 banghart 6780: sub clear_selected_files {
6781: my ($user) = @_;
6782: my $filename = $user."savedfiles";
6783: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6784: print (OUT undef);
6785: close (OUT);
6786: return ("ok");
6787: }
6788:
1.572 banghart 6789: sub files_in_path {
6790: my ($user, $path) = @_;
6791: my $filename = $user."savedfiles";
6792: my %return_files;
1.574 banghart 6793: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 6794: while (my $line_in = <IN>) {
1.574 banghart 6795: chomp ($line_in);
6796: my @paths_and_file = split (m!/!, $line_in);
6797: my $file_part = pop (@paths_and_file);
6798: my $path_part = join ('/', @paths_and_file);
1.573 banghart 6799: $path_part.='/';
6800: my $path_and_file = $path_part.$file_part;
6801: if ($path_part eq $path) {
6802: $return_files{$file_part}= 'selected';
6803: }
6804: }
1.574 banghart 6805: close (IN);
6806: return (\%return_files);
1.572 banghart 6807: }
6808:
6809: # called in portfolio select mode, to show files selected NOT in current directory
6810: sub files_not_in_path {
6811: my ($user, $path) = @_;
6812: my $filename = $user."savedfiles";
6813: my @return_files;
6814: my $path_part;
1.800 albertel 6815: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6816: while (my $line = <IN>) {
1.572 banghart 6817: #ok, I know it's clunky, but I want it to work
1.800 albertel 6818: my @paths_and_file = split(m|/|, $line);
6819: my $file_part = pop(@paths_and_file);
6820: chomp($file_part);
6821: my $path_part = join('/', @paths_and_file);
1.572 banghart 6822: $path_part .= '/';
6823: my $path_and_file = $path_part.$file_part;
6824: if ($path_part ne $path) {
1.800 albertel 6825: push(@return_files, ($path_and_file));
1.572 banghart 6826: }
6827: }
1.800 albertel 6828: close(OUT);
1.574 banghart 6829: return (@return_files);
1.572 banghart 6830: }
6831:
1.745 raeburn 6832: #----------------------------------------------Get portfolio file permissions
1.629 banghart 6833:
1.745 raeburn 6834: sub get_portfile_permissions {
6835: my ($domain,$user) = @_;
1.613 albertel 6836: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6837: my ($tmp)=keys(%current_permissions);
6838: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6839: return \%current_permissions;
6840: }
6841:
6842: #---------------------------------------------Get portfolio file access controls
6843:
1.749 raeburn 6844: sub get_access_controls {
1.745 raeburn 6845: my ($current_permissions,$group,$file) = @_;
1.769 albertel 6846: my %access;
6847: my $real_file = $file;
6848: $file =~ s/\.meta$//;
1.745 raeburn 6849: if (defined($file)) {
1.749 raeburn 6850: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
6851: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 6852: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 6853: }
6854: }
1.745 raeburn 6855: } else {
1.749 raeburn 6856: foreach my $key (keys(%{$current_permissions})) {
6857: if ($key =~ /\0accesscontrol$/) {
6858: if (defined($group)) {
6859: if ($key !~ m-^\Q$group\E/-) {
6860: next;
6861: }
6862: }
6863: my ($fullpath) = split(/\0/,$key);
6864: if (ref($$current_permissions{$key}) eq 'HASH') {
6865: foreach my $control (keys(%{$$current_permissions{$key}})) {
6866: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
6867: }
6868: }
6869: }
6870: }
6871: }
6872: return %access;
6873: }
6874:
6875: sub modify_access_controls {
6876: my ($file_name,$changes,$domain,$user)=@_;
6877: my ($outcome,$deloutcome);
6878: my %store_permissions;
6879: my %new_values;
6880: my %new_control;
6881: my %translation;
6882: my @deletions = ();
6883: my $now = time;
6884: if (exists($$changes{'activate'})) {
6885: if (ref($$changes{'activate'}) eq 'HASH') {
6886: my @newitems = sort(keys(%{$$changes{'activate'}}));
6887: my $numnew = scalar(@newitems);
6888: for (my $i=0; $i<$numnew; $i++) {
6889: my $newkey = $newitems[$i];
6890: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 6891: if ($newkey =~ /^\d+:/) {
6892: $newkey =~ s/^(\d+)/$newid/;
6893: $translation{$1} = $newid;
6894: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
6895: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
6896: $translation{$1} = $newid;
6897: }
1.749 raeburn 6898: $new_values{$file_name."\0".$newkey} =
6899: $$changes{'activate'}{$newitems[$i]};
6900: $new_control{$newkey} = $now;
6901: }
6902: }
6903: }
6904: my %todelete;
6905: my %changed_items;
6906: foreach my $action ('delete','update') {
6907: if (exists($$changes{$action})) {
6908: if (ref($$changes{$action}) eq 'HASH') {
6909: foreach my $key (keys(%{$$changes{$action}})) {
6910: my ($itemnum) = ($key =~ /^([^:]+):/);
6911: if ($action eq 'delete') {
6912: $todelete{$itemnum} = 1;
6913: } else {
6914: $changed_items{$itemnum} = $key;
6915: }
6916: }
1.745 raeburn 6917: }
6918: }
1.749 raeburn 6919: }
6920: # get lock on access controls for file.
6921: my $lockhash = {
6922: $file_name."\0".'locked_access_records' => $env{'user.name'}.
6923: ':'.$env{'user.domain'},
6924: };
6925: my $tries = 0;
6926: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6927:
6928: while (($gotlock ne 'ok') && $tries <3) {
6929: $tries ++;
6930: sleep 1;
6931: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6932: }
6933: if ($gotlock eq 'ok') {
6934: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
6935: my ($tmp)=keys(%curr_permissions);
6936: if ($tmp=~/^error:/) { undef(%curr_permissions); }
6937: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
6938: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
6939: if (ref($curr_controls) eq 'HASH') {
6940: foreach my $control_item (keys(%{$curr_controls})) {
6941: my ($itemnum) = ($control_item =~ /^([^:]+):/);
6942: if (defined($todelete{$itemnum})) {
6943: push(@deletions,$file_name."\0".$control_item);
6944: } else {
6945: if (defined($changed_items{$itemnum})) {
6946: $new_control{$changed_items{$itemnum}} = $now;
6947: push(@deletions,$file_name."\0".$control_item);
6948: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
6949: } else {
6950: $new_control{$control_item} = $$curr_controls{$control_item};
6951: }
6952: }
1.745 raeburn 6953: }
6954: }
6955: }
1.970 raeburn 6956: my ($group);
6957: if (&is_course($domain,$user)) {
6958: ($group,my $file) = split(/\//,$file_name,2);
6959: }
1.749 raeburn 6960: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
6961: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
6962: $outcome = &put('file_permissions',\%new_values,$domain,$user);
6963: # remove lock
6964: my @del_lock = ($file_name."\0".'locked_access_records');
6965: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 6966: my $sqlresult =
1.970 raeburn 6967: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 6968: $group);
1.749 raeburn 6969: } else {
6970: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 6971: }
1.749 raeburn 6972: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 6973: }
6974:
1.827 raeburn 6975: sub make_public_indefinitely {
6976: my ($requrl) = @_;
6977: my $now = time;
6978: my $action = 'activate';
6979: my $aclnum = 0;
6980: if (&is_portfolio_url($requrl)) {
6981: my (undef,$udom,$unum,$file_name,$group) =
6982: &parse_portfolio_url($requrl);
6983: my $current_perms = &get_portfile_permissions($udom,$unum);
6984: my %access_controls = &get_access_controls($current_perms,
6985: $group,$file_name);
6986: foreach my $key (keys(%{$access_controls{$file_name}})) {
6987: my ($num,$scope,$end,$start) =
6988: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6989: if ($scope eq 'public') {
6990: if ($start <= $now && $end == 0) {
6991: $action = 'none';
6992: } else {
6993: $action = 'update';
6994: $aclnum = $num;
6995: }
6996: last;
6997: }
6998: }
6999: if ($action eq 'none') {
7000: return 'ok';
7001: } else {
7002: my %changes;
7003: my $newend = 0;
7004: my $newstart = $now;
7005: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
7006: $changes{$action}{$newkey} = {
7007: type => 'public',
7008: time => {
7009: start => $newstart,
7010: end => $newend,
7011: },
7012: };
7013: my ($outcome,$deloutcome,$new_values,$translation) =
7014: &modify_access_controls($file_name,\%changes,$udom,$unum);
7015: return $outcome;
7016: }
7017: } else {
7018: return 'invalid';
7019: }
7020: }
7021:
1.745 raeburn 7022: #------------------------------------------------------Get Marked as Read Only
7023:
7024: sub get_marked_as_readonly {
7025: my ($domain,$user,$what,$group) = @_;
7026: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 7027: my @readonly_files;
1.629 banghart 7028: my $cmp1=$what;
7029: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 7030: while (my ($file_name,$value) = each(%{$current_permissions})) {
7031: if (defined($group)) {
7032: if ($file_name !~ m-^\Q$group\E/-) {
7033: next;
7034: }
7035: }
1.561 banghart 7036: if (ref($value) eq "ARRAY"){
7037: foreach my $stored_what (@{$value}) {
1.629 banghart 7038: my $cmp2=$stored_what;
1.759 albertel 7039: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 7040: $cmp2=join('',@{$stored_what});
1.745 raeburn 7041: }
1.629 banghart 7042: if ($cmp1 eq $cmp2) {
1.561 banghart 7043: push(@readonly_files, $file_name);
1.745 raeburn 7044: last;
1.563 banghart 7045: } elsif (!defined($what)) {
7046: push(@readonly_files, $file_name);
1.745 raeburn 7047: last;
1.561 banghart 7048: }
7049: }
1.745 raeburn 7050: }
1.561 banghart 7051: }
7052: return @readonly_files;
7053: }
1.577 banghart 7054: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 7055:
1.577 banghart 7056: sub get_marked_as_readonly_hash {
1.745 raeburn 7057: my ($current_permissions,$group,$what) = @_;
1.577 banghart 7058: my %readonly_files;
1.745 raeburn 7059: while (my ($file_name,$value) = each(%{$current_permissions})) {
7060: if (defined($group)) {
7061: if ($file_name !~ m-^\Q$group\E/-) {
7062: next;
7063: }
7064: }
1.577 banghart 7065: if (ref($value) eq "ARRAY"){
7066: foreach my $stored_what (@{$value}) {
1.745 raeburn 7067: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 7068: foreach my $lock_descriptor(@{$stored_what}) {
7069: if ($lock_descriptor eq 'graded') {
7070: $readonly_files{$file_name} = 'graded';
7071: } elsif ($lock_descriptor eq 'handback') {
7072: $readonly_files{$file_name} = 'handback';
7073: } else {
7074: if (!exists($readonly_files{$file_name})) {
7075: $readonly_files{$file_name} = 'locked';
7076: }
7077: }
1.745 raeburn 7078: }
1.750 banghart 7079: }
1.577 banghart 7080: }
7081: }
7082: }
7083: return %readonly_files;
7084: }
1.559 banghart 7085: # ------------------------------------------------------------ Unmark as Read Only
7086:
7087: sub unmark_as_readonly {
1.629 banghart 7088: # unmarks $file_name (if $file_name is defined), or all files locked by $what
7089: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 7090: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 7091: $file_name = &declutter_portfile($file_name);
1.634 albertel 7092: my $symb_crs = $what;
7093: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 7094: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 7095: my ($tmp)=keys(%current_permissions);
7096: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7097: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 7098: foreach my $file (@readonly_files) {
1.759 albertel 7099: my $clean_file = &declutter_portfile($file);
7100: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 7101: my $current_locks = $current_permissions{$file};
1.563 banghart 7102: my @new_locks;
7103: my @del_keys;
7104: if (ref($current_locks) eq "ARRAY"){
7105: foreach my $locker (@{$current_locks}) {
1.632 albertel 7106: my $compare=$locker;
1.749 raeburn 7107: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 7108: $compare=join('',@{$locker});
1.746 raeburn 7109: if ($compare ne $symb_crs) {
7110: push(@new_locks, $locker);
7111: }
1.563 banghart 7112: }
7113: }
1.650 albertel 7114: if (scalar(@new_locks) > 0) {
1.563 banghart 7115: $current_permissions{$file} = \@new_locks;
7116: } else {
7117: push(@del_keys, $file);
1.613 albertel 7118: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 7119: delete($current_permissions{$file});
1.563 banghart 7120: }
7121: }
1.561 banghart 7122: }
1.613 albertel 7123: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7124: return;
7125: }
1.512 banghart 7126:
1.17 www 7127: # ------------------------------------------------------------ Directory lister
7128:
7129: sub dirlist {
1.955 raeburn 7130: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 7131: $uri=~s/^\///;
7132: $uri=~s/\/$//;
1.253 stredwic 7133: my ($udom, $uname);
1.955 raeburn 7134: if ($getuserdir) {
1.253 stredwic 7135: $udom = $userdomain;
7136: $uname = $username;
1.955 raeburn 7137: } else {
7138: (undef,$udom,$uname)=split(/\//,$uri);
7139: if(defined($userdomain)) {
7140: $udom = $userdomain;
7141: }
7142: if(defined($username)) {
7143: $uname = $username;
7144: }
1.253 stredwic 7145: }
1.955 raeburn 7146: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 7147:
1.955 raeburn 7148: $dirRoot = $perlvar{'lonDocRoot'};
7149: if (defined($getpropath)) {
7150: $dirRoot = &propath($udom,$uname);
1.253 stredwic 7151: $dirRoot =~ s/\/$//;
1.955 raeburn 7152: } elsif (defined($getuserdir)) {
7153: my $subdir=$uname.'__';
7154: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
7155: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
7156: ."/$udom/$subdir/$uname";
7157: } elsif (defined($alternateRoot)) {
7158: $dirRoot = $alternateRoot;
1.751 banghart 7159: }
1.253 stredwic 7160:
7161: if($udom) {
7162: if($uname) {
1.955 raeburn 7163: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 7164: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 7165: .':'.&escape($uname).':'.&escape($udom),
7166: &homeserver($uname,$udom));
7167: if ($listing eq 'unknown_cmd') {
7168: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
7169: &homeserver($uname,$udom));
7170: } else {
7171: @listing_results = map { &unescape($_); } split(/:/,$listing);
7172: }
1.605 matthew 7173: if ($listing eq 'unknown_cmd') {
1.800 albertel 7174: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
7175: &homeserver($uname,$udom));
1.605 matthew 7176: @listing_results = split(/:/,$listing);
7177: } else {
7178: @listing_results = map { &unescape($_); } split(/:/,$listing);
7179: }
7180: return @listing_results;
1.955 raeburn 7181: } elsif(!$alternateRoot) {
1.800 albertel 7182: my %allusers;
1.841 albertel 7183: my %servers = &get_servers($udom,'library');
1.955 raeburn 7184: foreach my $tryserver (keys(%servers)) {
7185: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
7186: &escape($udom),$tryserver);
7187: if ($listing eq 'unknown_cmd') {
7188: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
7189: $udom, $tryserver);
7190: } else {
7191: @listing_results = map { &unescape($_); } split(/:/,$listing);
7192: }
1.841 albertel 7193: if ($listing eq 'unknown_cmd') {
7194: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
7195: $udom, $tryserver);
7196: @listing_results = split(/:/,$listing);
7197: } else {
7198: @listing_results =
7199: map { &unescape($_); } split(/:/,$listing);
7200: }
7201: if ($listing_results[0] ne 'no_such_dir' &&
7202: $listing_results[0] ne 'empty' &&
7203: $listing_results[0] ne 'con_lost') {
7204: foreach my $line (@listing_results) {
7205: my ($entry) = split(/&/,$line,2);
7206: $allusers{$entry} = 1;
7207: }
7208: }
1.253 stredwic 7209: }
7210: my $alluserstr='';
1.800 albertel 7211: foreach my $user (sort(keys(%allusers))) {
7212: $alluserstr.=$user.'&user:';
1.253 stredwic 7213: }
7214: $alluserstr=~s/:$//;
7215: return split(/:/,$alluserstr);
7216: } else {
1.800 albertel 7217: return ('missing user name');
1.253 stredwic 7218: }
1.955 raeburn 7219: } elsif(!defined($getpropath)) {
1.841 albertel 7220: my @all_domains = sort(&all_domains());
1.955 raeburn 7221: foreach my $domain (@all_domains) {
7222: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
7223: }
7224: return @all_domains;
7225: } else {
1.800 albertel 7226: return ('missing domain');
1.275 stredwic 7227: }
7228: }
7229:
7230: # --------------------------------------------- GetFileTimestamp
7231: # This function utilizes dirlist and returns the date stamp for
7232: # when it was last modified. It will also return an error of -1
7233: # if an error occurs
7234:
7235: sub GetFileTimestamp {
1.955 raeburn 7236: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 7237: $studentDomain = &LONCAPA::clean_domain($studentDomain);
7238: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 7239: my ($fileStat) =
7240: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
7241: undef,$getuserdir);
1.275 stredwic 7242: my @stats = split('&', $fileStat);
7243: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 7244: # @stats contains first the filename, then the stat output
7245: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 7246: } else {
7247: return -1;
1.253 stredwic 7248: }
1.26 www 7249: }
7250:
1.712 albertel 7251: sub stat_file {
7252: my ($uri) = @_;
1.787 albertel 7253: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 7254:
1.955 raeburn 7255: my ($udom,$uname,$file);
1.712 albertel 7256: if ($uri =~ m-^/(uploaded|editupload)/-) {
7257: ($udom,$uname,$file) =
1.811 albertel 7258: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 7259: $file = 'userfiles/'.$file;
7260: }
7261: if ($uri =~ m-^/res/-) {
7262: ($udom,$uname) =
1.807 albertel 7263: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 7264: $file = $uri;
7265: }
7266:
7267: if (!$udom || !$uname || !$file) {
7268: # unable to handle the uri
7269: return ();
7270: }
1.956 raeburn 7271: my $getpropath;
7272: if ($file =~ /^userfiles\//) {
7273: $getpropath = 1;
7274: }
1.955 raeburn 7275: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 7276: my @stats = split('&', $result);
1.721 banghart 7277:
1.712 albertel 7278: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
7279: shift(@stats); #filename is first
7280: return @stats;
7281: }
7282: return ();
7283: }
7284:
1.26 www 7285: # -------------------------------------------------------- Value of a Condition
7286:
1.713 albertel 7287: # gets the value of a specific preevaluated condition
7288: # stored in the string $env{user.state.<cid>}
7289: # or looks up a condition reference in the bighash and if if hasn't
7290: # already been evaluated recurses into docondval to get the value of
7291: # the condition, then memoizing it to
7292: # $env{user.state.<cid>.<condition>}
1.40 www 7293: sub directcondval {
7294: my $number=shift;
1.620 albertel 7295: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 7296: &Apache::lonuserstate::evalstate();
7297: }
1.713 albertel 7298: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
7299: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
7300: } elsif ($number =~ /^_/) {
7301: my $sub_condition;
7302: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
7303: &GDBM_READER(),0640)) {
7304: $sub_condition=$bighash{'conditions'.$number};
7305: untie(%bighash);
7306: }
7307: my $value = &docondval($sub_condition);
1.949 raeburn 7308: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 7309: return $value;
7310: }
1.620 albertel 7311: if ($env{'user.state.'.$env{'request.course.id'}}) {
7312: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 7313: } else {
7314: return 2;
7315: }
7316: }
7317:
1.713 albertel 7318: # get the collection of conditions for this resource
1.26 www 7319: sub condval {
7320: my $condidx=shift;
1.54 www 7321: my $allpathcond='';
1.713 albertel 7322: foreach my $cond (split(/\|/,$condidx)) {
7323: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
7324: $allpathcond.=
7325: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
7326: }
1.191 harris41 7327: }
1.54 www 7328: $allpathcond=~s/\|$//;
1.713 albertel 7329: return &docondval($allpathcond);
7330: }
7331:
7332: #evaluates an expression of conditions
7333: sub docondval {
7334: my ($allpathcond) = @_;
7335: my $result=0;
7336: if ($env{'request.course.id'}
7337: && defined($allpathcond)) {
7338: my $operand='|';
7339: my @stack;
7340: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
7341: if ($chunk eq '(') {
7342: push @stack,($operand,$result);
7343: } elsif ($chunk eq ')') {
7344: my $before=pop @stack;
7345: if (pop @stack eq '&') {
7346: $result=$result>$before?$before:$result;
7347: } else {
7348: $result=$result>$before?$result:$before;
7349: }
7350: } elsif (($chunk eq '&') || ($chunk eq '|')) {
7351: $operand=$chunk;
7352: } else {
7353: my $new=directcondval($chunk);
7354: if ($operand eq '&') {
7355: $result=$result>$new?$new:$result;
7356: } else {
7357: $result=$result>$new?$result:$new;
7358: }
7359: }
7360: }
1.26 www 7361: }
7362: return $result;
1.421 albertel 7363: }
7364:
7365: # ---------------------------------------------------- Devalidate courseresdata
7366:
7367: sub devalidatecourseresdata {
7368: my ($coursenum,$coursedomain)=@_;
7369: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7370: &devalidate_cache_new('courseres',$hashid);
1.28 www 7371: }
7372:
1.763 www 7373:
1.200 www 7374: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 7375: #
7376: # Parameters:
7377: # $coursenum - Number of the course.
7378: # $coursedomain - Domain at which the course was created.
7379: # Returns:
7380: # A hash of the course parameters along (I think) with timestamps
7381: # and version info.
1.877 foxr 7382:
1.624 albertel 7383: sub get_courseresdata {
7384: my ($coursenum,$coursedomain)=@_;
1.200 www 7385: my $coursehom=&homeserver($coursenum,$coursedomain);
7386: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7387: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 7388: my %dumpreply;
1.417 albertel 7389: unless (defined($cached)) {
1.624 albertel 7390: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 7391: $result=\%dumpreply;
1.251 albertel 7392: my ($tmp) = keys(%dumpreply);
7393: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 7394: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 7395: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
7396: return $tmp;
1.416 albertel 7397: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 7398: $result=undef;
1.599 albertel 7399: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 7400: }
7401: }
1.624 albertel 7402: return $result;
7403: }
7404:
1.633 albertel 7405: sub devalidateuserresdata {
7406: my ($uname,$udom)=@_;
7407: my $hashid="$udom:$uname";
7408: &devalidate_cache_new('userres',$hashid);
7409: }
7410:
1.624 albertel 7411: sub get_userresdata {
7412: my ($uname,$udom)=@_;
7413: #most student don\'t have any data set, check if there is some data
7414: if (&EXT_cache_status($udom,$uname)) { return undef; }
7415:
7416: my $hashid="$udom:$uname";
7417: my ($result,$cached)=&is_cached_new('userres',$hashid);
7418: if (!defined($cached)) {
7419: my %resourcedata=&dump('resourcedata',$udom,$uname);
7420: $result=\%resourcedata;
7421: &do_cache_new('userres',$hashid,$result,600);
7422: }
7423: my ($tmp)=keys(%$result);
7424: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
7425: return $result;
7426: }
7427: #error 2 occurs when the .db doesn't exist
7428: if ($tmp!~/error: 2 /) {
1.672 albertel 7429: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 7430: " Trying to get resource data for ".
7431: $uname." at ".$udom.": ".
7432: $tmp."</font>");
7433: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 7434: #&EXT_cache_set($udom,$uname);
7435: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 7436: undef($tmp); # not really an error so don't send it back
1.624 albertel 7437: }
7438: return $tmp;
7439: }
1.879 foxr 7440: #----------------------------------------------- resdata - return resource data
7441: # Purpose:
7442: # Return resource data for either users or for a course.
7443: # Parameters:
7444: # $name - Course/user name.
7445: # $domain - Name of the domain the user/course is registered on.
7446: # $type - Type of thing $name is (must be 'course' or 'user'
7447: # @which - Array of names of resources desired.
7448: # Returns:
7449: # The value of the first reasource in @which that is found in the
7450: # resource hash.
7451: # Exceptional Conditions:
7452: # If the $type passed in is not valid (not the string 'course' or
7453: # 'user', an undefined reference is returned.
7454: # If none of the resources are found, an undef is returned
1.624 albertel 7455: sub resdata {
7456: my ($name,$domain,$type,@which)=@_;
7457: my $result;
7458: if ($type eq 'course') {
7459: $result=&get_courseresdata($name,$domain);
7460: } elsif ($type eq 'user') {
7461: $result=&get_userresdata($name,$domain);
7462: }
7463: if (!ref($result)) { return $result; }
1.251 albertel 7464: foreach my $item (@which) {
1.927 albertel 7465: if (defined($result->{$item->[0]})) {
7466: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 7467: }
1.250 albertel 7468: }
1.291 albertel 7469: return undef;
1.200 www 7470: }
7471:
1.379 matthew 7472: #
7473: # EXT resource caching routines
7474: #
7475:
7476: sub clear_EXT_cache_status {
1.383 albertel 7477: &delenv('cache.EXT.');
1.379 matthew 7478: }
7479:
7480: sub EXT_cache_status {
7481: my ($target_domain,$target_user) = @_;
1.383 albertel 7482: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 7483: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 7484: # We know already the user has no data
7485: return 1;
7486: } else {
7487: return 0;
7488: }
7489: }
7490:
7491: sub EXT_cache_set {
7492: my ($target_domain,$target_user) = @_;
1.383 albertel 7493: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 7494: #&appenv({$cachename => time});
1.379 matthew 7495: }
7496:
1.28 www 7497: # --------------------------------------------------------- Value of a Variable
1.58 www 7498: sub EXT {
1.715 albertel 7499:
1.395 albertel 7500: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 7501: unless ($varname) { return ''; }
1.218 albertel 7502: #get real user name/domain, courseid and symb
7503: my $courseid;
1.359 albertel 7504: my $publicuser;
1.427 www 7505: if ($symbparm) {
7506: $symbparm=&get_symb_from_alias($symbparm);
7507: }
1.218 albertel 7508: if (!($uname && $udom)) {
1.790 albertel 7509: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 7510: if (!$symbparm) { $symbparm=$cursymb; }
7511: } else {
1.620 albertel 7512: $courseid=$env{'request.course.id'};
1.218 albertel 7513: }
1.48 www 7514: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
7515: my $rest;
1.320 albertel 7516: if (defined($therest[0])) {
1.48 www 7517: $rest=join('.',@therest);
7518: } else {
7519: $rest='';
7520: }
1.320 albertel 7521:
1.57 www 7522: my $qualifierrest=$qualifier;
7523: if ($rest) { $qualifierrest.='.'.$rest; }
7524: my $spacequalifierrest=$space;
7525: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 7526: if ($realm eq 'user') {
1.48 www 7527: # --------------------------------------------------------------- user.resource
7528: if ($space eq 'resource') {
1.651 albertel 7529: if ( (defined($Apache::lonhomework::parsing_a_problem)
7530: || defined($Apache::lonhomework::parsing_a_task))
7531: &&
1.744 albertel 7532: ($symbparm eq &symbread()) ) {
7533: # if we are in the middle of processing the resource the
7534: # get the value we are planning on committing
7535: if (defined($Apache::lonhomework::results{$qualifierrest})) {
7536: return $Apache::lonhomework::results{$qualifierrest};
7537: } else {
7538: return $Apache::lonhomework::history{$qualifierrest};
7539: }
1.335 albertel 7540: } else {
1.359 albertel 7541: my %restored;
1.620 albertel 7542: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 7543: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
7544: } else {
7545: %restored=&restore($symbparm,$courseid,$udom,$uname);
7546: }
1.335 albertel 7547: return $restored{$qualifierrest};
7548: }
1.48 www 7549: # ----------------------------------------------------------------- user.access
7550: } elsif ($space eq 'access') {
1.218 albertel 7551: # FIXME - not supporting calls for a specific user
1.48 www 7552: return &allowed($qualifier,$rest);
7553: # ------------------------------------------ user.preferences, user.environment
7554: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 7555: if (($uname eq $env{'user.name'}) &&
7556: ($udom eq $env{'user.domain'})) {
7557: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 7558: } else {
1.359 albertel 7559: my %returnhash;
7560: if (!$publicuser) {
7561: %returnhash=&userenvironment($udom,$uname,
7562: $qualifierrest);
7563: }
1.218 albertel 7564: return $returnhash{$qualifierrest};
7565: }
1.48 www 7566: # ----------------------------------------------------------------- user.course
7567: } elsif ($space eq 'course') {
1.218 albertel 7568: # FIXME - not supporting calls for a specific user
1.620 albertel 7569: return $env{join('.',('request.course',$qualifier))};
1.48 www 7570: # ------------------------------------------------------------------- user.role
7571: } elsif ($space eq 'role') {
1.218 albertel 7572: # FIXME - not supporting calls for a specific user
1.620 albertel 7573: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 7574: if ($qualifier eq 'value') {
7575: return $role;
7576: } elsif ($qualifier eq 'extent') {
7577: return $where;
7578: }
7579: # ----------------------------------------------------------------- user.domain
7580: } elsif ($space eq 'domain') {
1.218 albertel 7581: return $udom;
1.48 www 7582: # ------------------------------------------------------------------- user.name
7583: } elsif ($space eq 'name') {
1.218 albertel 7584: return $uname;
1.48 www 7585: # ---------------------------------------------------- Any other user namespace
1.29 www 7586: } else {
1.359 albertel 7587: my %reply;
7588: if (!$publicuser) {
7589: %reply=&get($space,[$qualifierrest],$udom,$uname);
7590: }
7591: return $reply{$qualifierrest};
1.48 www 7592: }
1.236 www 7593: } elsif ($realm eq 'query') {
7594: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 7595: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
7596: [$spacequalifierrest]);
1.620 albertel 7597: return $env{'form.'.$spacequalifierrest};
1.236 www 7598: } elsif ($realm eq 'request') {
1.48 www 7599: # ------------------------------------------------------------- request.browser
7600: if ($space eq 'browser') {
1.430 www 7601: if ($qualifier eq 'textremote') {
1.676 albertel 7602: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 7603: return 1;
7604: } else {
7605: return 0;
7606: }
7607: } else {
1.620 albertel 7608: return $env{'browser.'.$qualifier};
1.430 www 7609: }
1.57 www 7610: # ------------------------------------------------------------ request.filename
7611: } else {
1.620 albertel 7612: return $env{'request.'.$spacequalifierrest};
1.29 www 7613: }
1.28 www 7614: } elsif ($realm eq 'course') {
1.48 www 7615: # ---------------------------------------------------------- course.description
1.620 albertel 7616: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 7617: } elsif ($realm eq 'resource') {
1.165 www 7618:
1.620 albertel 7619: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 7620: if (!$symbparm) { $symbparm=&symbread(); }
7621: }
1.693 albertel 7622:
7623: if ($space eq 'title') {
7624: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
7625: return &gettitle($symbparm);
7626: }
7627:
7628: if ($space eq 'map') {
7629: my ($map) = &decode_symb($symbparm);
7630: return &symbread($map);
7631: }
1.905 albertel 7632: if ($space eq 'filename') {
7633: if ($symbparm) {
7634: return &clutter((&decode_symb($symbparm))[2]);
7635: }
7636: return &hreflocation('',$env{'request.filename'});
7637: }
1.693 albertel 7638:
7639: my ($section, $group, @groups);
1.593 albertel 7640: my ($courselevelm,$courselevel);
1.539 albertel 7641: if ($symbparm && defined($courseid) &&
1.620 albertel 7642: $courseid eq $env{'request.course.id'}) {
1.165 www 7643:
1.218 albertel 7644: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 7645:
1.60 www 7646: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 7647: my $symbp=$symbparm;
1.735 albertel 7648: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 7649:
7650: my $symbparm=$symbp.'.'.$spacequalifierrest;
7651: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
7652:
1.620 albertel 7653: if (($env{'user.name'} eq $uname) &&
7654: ($env{'user.domain'} eq $udom)) {
7655: $section=$env{'request.course.sec'};
1.733 raeburn 7656: @groups = split(/:/,$env{'request.course.groups'});
7657: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 7658: } else {
1.539 albertel 7659: if (! defined($usection)) {
1.551 albertel 7660: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 7661: } else {
7662: $section = $usection;
7663: }
1.733 raeburn 7664: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 7665: }
7666:
7667: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
7668: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
7669: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
7670:
1.593 albertel 7671: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 7672: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 7673: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 7674:
1.60 www 7675: # ----------------------------------------------------------- first, check user
1.624 albertel 7676:
7677: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 7678: ([$courselevelr,'resource'],
7679: [$courselevelm,'map' ],
7680: [$courselevel, 'course' ]));
1.931 albertel 7681: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 7682:
1.594 albertel 7683: # ------------------------------------------------ second, check some of course
1.684 raeburn 7684: my $coursereply;
1.691 raeburn 7685: if (@groups > 0) {
7686: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
7687: $mapparm,$spacequalifierrest);
1.927 albertel 7688: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 7689: }
1.96 www 7690:
1.684 raeburn 7691: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 7692: $env{'course.'.$courseid.'.domain'},
7693: 'course',
7694: ([$seclevelr, 'resource'],
7695: [$seclevelm, 'map' ],
7696: [$seclevel, 'course' ],
7697: [$courselevelr,'resource']));
7698: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 7699:
1.60 www 7700: # ------------------------------------------------------ third, check map parms
1.218 albertel 7701: my %parmhash=();
7702: my $thisparm='';
7703: if (tie(%parmhash,'GDBM_File',
1.620 albertel 7704: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 7705: &GDBM_READER(),0640)) {
1.218 albertel 7706: $thisparm=$parmhash{$symbparm};
7707: untie(%parmhash);
7708: }
1.927 albertel 7709: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 7710: }
1.594 albertel 7711: # ------------------------------------------ fourth, look in resource metadata
1.71 www 7712:
1.218 albertel 7713: $spacequalifierrest=~s/\./\_/;
1.282 albertel 7714: my $filename;
7715: if (!$symbparm) { $symbparm=&symbread(); }
7716: if ($symbparm) {
1.409 www 7717: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 7718: } else {
1.620 albertel 7719: $filename=$env{'request.filename'};
1.282 albertel 7720: }
7721: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 7722: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 7723: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 7724: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 7725:
1.927 albertel 7726: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 7727: if ($symbparm && defined($courseid) &&
1.620 albertel 7728: $courseid eq $env{'request.course.id'}) {
1.624 albertel 7729: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
7730: $env{'course.'.$courseid.'.domain'},
7731: 'course',
1.927 albertel 7732: ([$courselevelm,'map' ],
7733: [$courselevel, 'course']));
7734: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 7735: }
1.145 www 7736: # ------------------------------------------------------------------ Cascade up
1.218 albertel 7737: unless ($space eq '0') {
1.336 albertel 7738: my @parts=split(/_/,$space);
7739: my $id=pop(@parts);
7740: my $part=join('_',@parts);
7741: if ($part eq '') { $part='0'; }
1.927 albertel 7742: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 7743: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 7744: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 7745: }
1.395 albertel 7746: if ($recurse) { return undef; }
7747: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 7748: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 7749: # ---------------------------------------------------- Any other user namespace
7750: } elsif ($realm eq 'environment') {
7751: # ----------------------------------------------------------------- environment
1.620 albertel 7752: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
7753: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 7754: } else {
1.770 albertel 7755: if ($uname eq 'anonymous' && $udom eq '') {
7756: return '';
7757: }
1.219 albertel 7758: my %returnhash=&userenvironment($udom,$uname,
7759: $spacequalifierrest);
7760: return $returnhash{$spacequalifierrest};
7761: }
1.28 www 7762: } elsif ($realm eq 'system') {
1.48 www 7763: # ----------------------------------------------------------------- system.time
7764: if ($space eq 'time') {
7765: return time;
7766: }
1.696 albertel 7767: } elsif ($realm eq 'server') {
7768: # ----------------------------------------------------------------- system.time
7769: if ($space eq 'name') {
7770: return $ENV{'SERVER_NAME'};
7771: }
1.28 www 7772: }
1.48 www 7773: return '';
1.61 www 7774: }
7775:
1.927 albertel 7776: sub get_reply {
7777: my ($reply_value) = @_;
1.940 raeburn 7778: if (ref($reply_value) eq 'ARRAY') {
7779: if (wantarray) {
7780: return @$reply_value;
7781: }
7782: return $reply_value->[0];
7783: } else {
7784: return $reply_value;
1.927 albertel 7785: }
7786: }
7787:
1.691 raeburn 7788: sub check_group_parms {
7789: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
7790: my @groupitems = ();
7791: my $resultitem;
1.927 albertel 7792: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 7793: foreach my $group (@{$groups}) {
7794: foreach my $level (@levels) {
1.927 albertel 7795: my $item = $courseid.'.['.$group.'].'.$level->[0];
7796: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 7797: }
7798: }
7799: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
7800: $env{'course.'.$courseid.'.domain'},
7801: 'course',@groupitems);
7802: return $coursereply;
7803: }
7804:
7805: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 7806: my ($courseid,@groups) = @_;
7807: @groups = sort(@groups);
1.691 raeburn 7808: return @groups;
7809: }
7810:
1.395 albertel 7811: sub packages_tab_default {
7812: my ($uri,$varname)=@_;
7813: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 7814:
7815: my (@extension,@specifics,$do_default);
7816: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 7817: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 7818: if ($pack_type eq 'default') {
7819: $do_default=1;
7820: } elsif ($pack_type eq 'extension') {
7821: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 7822: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 7823: # only look at packages defaults for packages that this id is
1.738 albertel 7824: push(@specifics,[$package,$pack_type,$pack_part]);
7825: }
7826: }
7827: # first look for a package that matches the requested part id
7828: foreach my $package (@specifics) {
7829: my (undef,$pack_type,$pack_part)=@{$package};
7830: next if ($pack_part ne $part);
7831: if (defined($packagetab{"$pack_type&$name&default"})) {
7832: return $packagetab{"$pack_type&$name&default"};
7833: }
7834: }
7835: # look for any possible matching non extension_ package
7836: foreach my $package (@specifics) {
7837: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 7838: if (defined($packagetab{"$pack_type&$name&default"})) {
7839: return $packagetab{"$pack_type&$name&default"};
7840: }
1.585 albertel 7841: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 7842: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
7843: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 7844: }
7845: }
1.738 albertel 7846: # look for any posible extension_ match
7847: foreach my $package (@extension) {
7848: my ($package,$pack_type)=@{$package};
7849: if (defined($packagetab{"$pack_type&$name&default"})) {
7850: return $packagetab{"$pack_type&$name&default"};
7851: }
7852: if (defined($packagetab{$package."&$name&default"})) {
7853: return $packagetab{$package."&$name&default"};
7854: }
7855: }
7856: # look for a global default setting
7857: if ($do_default && defined($packagetab{"default&$name&default"})) {
7858: return $packagetab{"default&$name&default"};
7859: }
1.395 albertel 7860: return undef;
7861: }
7862:
1.334 albertel 7863: sub add_prefix_and_part {
7864: my ($prefix,$part)=@_;
7865: my $keyroot;
7866: if (defined($prefix) && $prefix !~ /^__/) {
7867: # prefix that has a part already
7868: $keyroot=$prefix;
7869: } elsif (defined($prefix)) {
7870: # prefix that is missing a part
7871: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
7872: } else {
7873: # no prefix at all
7874: if (defined($part)) { $keyroot='_'.$part; }
7875: }
7876: return $keyroot;
7877: }
7878:
1.71 www 7879: # ---------------------------------------------------------------- Get metadata
7880:
1.599 albertel 7881: my %metaentry;
1.71 www 7882: sub metadata {
1.176 www 7883: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 7884: $uri=&declutter($uri);
1.288 albertel 7885: # if it is a non metadata possible uri return quickly
1.529 albertel 7886: if (($uri eq '') ||
7887: (($uri =~ m|^/*adm/|) &&
1.698 albertel 7888: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.924 albertel 7889: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) ) {
7890: return undef;
7891: }
7892: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
7893: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 7894: return undef;
1.288 albertel 7895: }
1.73 www 7896: my $filename=$uri;
7897: $uri=~s/\.meta$//;
1.172 www 7898: #
7899: # Is the metadata already cached?
1.177 www 7900: # Look at timestamp of caching
1.172 www 7901: # Everything is cached by the main uri, libraries are never directly cached
7902: #
1.428 albertel 7903: if (!defined($liburi)) {
1.599 albertel 7904: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 7905: if (defined($cached)) { return $result->{':'.$what}; }
7906: }
7907: {
1.172 www 7908: #
7909: # Is this a recursive call for a library?
7910: #
1.599 albertel 7911: # if (! exists($metacache{$uri})) {
7912: # $metacache{$uri}={};
7913: # }
1.924 albertel 7914: my $cachetime = 60*60;
1.171 www 7915: if ($liburi) {
7916: $liburi=&declutter($liburi);
7917: $filename=$liburi;
1.401 bowersj2 7918: } else {
1.599 albertel 7919: &devalidate_cache_new('meta',$uri);
7920: undef(%metaentry);
1.401 bowersj2 7921: }
1.140 www 7922: my %metathesekeys=();
1.73 www 7923: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 7924: my $metastring;
1.924 albertel 7925: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 7926: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 7927: $metastring =
1.929 albertel 7928: &Apache::lonnet::ssi_body($which,
1.924 albertel 7929: ('grade_target' => 'meta'));
7930: $cachetime = 1; # only want this cached in the child not long term
7931: } elsif ($uri !~ m -^(editupload)/-) {
1.543 albertel 7932: my $file=&filelocation('',&clutter($filename));
1.599 albertel 7933: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 7934: $metastring=&getfile($file);
1.489 albertel 7935: }
1.208 albertel 7936: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 7937: my $token;
1.140 www 7938: undef %metathesekeys;
1.71 www 7939: while ($token=$parser->get_token) {
1.339 albertel 7940: if ($token->[0] eq 'S') {
7941: if (defined($token->[2]->{'package'})) {
1.172 www 7942: #
7943: # This is a package - get package info
7944: #
1.339 albertel 7945: my $package=$token->[2]->{'package'};
7946: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7947: if (defined($token->[2]->{'id'})) {
7948: $keyroot.='_'.$token->[2]->{'id'};
7949: }
1.599 albertel 7950: if ($metaentry{':packages'}) {
7951: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 7952: } else {
1.599 albertel 7953: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 7954: }
1.736 albertel 7955: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 7956: my $part=$keyroot;
7957: $part=~s/^\_//;
1.736 albertel 7958: if ($pack_entry=~/^\Q$package\E\&/ ||
7959: $pack_entry=~/^\Q$package\E_0\&/) {
7960: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 7961: # ignore package.tab specified default values
7962: # here &package_tab_default() will fetch those
7963: if ($subp eq 'default') { next; }
1.736 albertel 7964: my $value=$packagetab{$pack_entry};
1.432 albertel 7965: my $unikey;
7966: if ($pack =~ /_0$/) {
7967: $unikey='parameter_0_'.$name;
7968: $part=0;
7969: } else {
7970: $unikey='parameter'.$keyroot.'_'.$name;
7971: }
1.339 albertel 7972: if ($subp eq 'display') {
7973: $value.=' [Part: '.$part.']';
7974: }
1.599 albertel 7975: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 7976: $metathesekeys{$unikey}=1;
1.599 albertel 7977: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7978: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 7979: }
1.599 albertel 7980: if (defined($metaentry{':'.$unikey.'.default'})) {
7981: $metaentry{':'.$unikey}=
7982: $metaentry{':'.$unikey.'.default'};
1.356 albertel 7983: }
1.339 albertel 7984: }
7985: }
7986: } else {
1.172 www 7987: #
7988: # This is not a package - some other kind of start tag
1.339 albertel 7989: #
7990: my $entry=$token->[1];
7991: my $unikey;
7992: if ($entry eq 'import') {
7993: $unikey='';
7994: } else {
7995: $unikey=$entry;
7996: }
7997: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7998:
7999: if (defined($token->[2]->{'id'})) {
8000: $unikey.='_'.$token->[2]->{'id'};
8001: }
1.175 www 8002:
1.339 albertel 8003: if ($entry eq 'import') {
1.175 www 8004: #
8005: # Importing a library here
1.339 albertel 8006: #
8007: if ($depthcount<20) {
8008: my $location=$parser->get_text('/import');
8009: my $dir=$filename;
8010: $dir=~s|[^/]*$||;
8011: $location=&filelocation($dir,$location);
1.736 albertel 8012: my $metadata =
8013: &metadata($uri,'keys', $location,$unikey,
8014: $depthcount+1);
8015: foreach my $meta (split(',',$metadata)) {
8016: $metaentry{':'.$meta}=$metaentry{':'.$meta};
8017: $metathesekeys{$meta}=1;
1.339 albertel 8018: }
8019: }
8020: } else {
8021:
8022: if (defined($token->[2]->{'name'})) {
8023: $unikey.='_'.$token->[2]->{'name'};
8024: }
8025: $metathesekeys{$unikey}=1;
1.736 albertel 8026: foreach my $param (@{$token->[3]}) {
8027: $metaentry{':'.$unikey.'.'.$param} =
8028: $token->[2]->{$param};
1.339 albertel 8029: }
8030: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 8031: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 8032: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
8033: # only ws inside the tag, and not in default, so use default
8034: # as value
1.599 albertel 8035: $metaentry{':'.$unikey}=$default;
1.908 albertel 8036: } elsif ( $internaltext =~ /\S/ ) {
8037: # something interesting inside the tag
8038: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 8039: } else {
1.908 albertel 8040: # no interesting values, don't set a default
1.339 albertel 8041: }
1.172 www 8042: # end of not-a-package not-a-library import
1.339 albertel 8043: }
1.172 www 8044: # end of not-a-package start tag
1.339 albertel 8045: }
1.172 www 8046: # the next is the end of "start tag"
1.339 albertel 8047: }
8048: }
1.483 albertel 8049: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 8050: $extension = lc($extension);
8051: if ($extension eq 'htm') { $extension='html'; }
8052:
1.737 albertel 8053: foreach my $key (keys(%packagetab)) {
1.483 albertel 8054: #no specific packages #how's our extension
8055: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 8056: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 8057: \%metathesekeys);
8058: }
1.883 albertel 8059:
8060: if (!exists($metaentry{':packages'})
8061: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 8062: foreach my $key (keys(%packagetab)) {
1.483 albertel 8063: #no specific packages well let's get default then
8064: if ($key!~/^default&/) { next; }
1.488 albertel 8065: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 8066: \%metathesekeys);
8067: }
8068: }
1.338 www 8069: # are there custom rights to evaluate
1.599 albertel 8070: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 8071:
1.338 www 8072: #
8073: # Importing a rights file here
1.339 albertel 8074: #
8075: unless ($depthcount) {
1.599 albertel 8076: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 8077: my $dir=$filename;
8078: $dir=~s|[^/]*$||;
8079: $location=&filelocation($dir,$location);
1.736 albertel 8080: my $rights_metadata =
8081: &metadata($uri,'keys',$location,'_rights',
8082: $depthcount+1);
8083: foreach my $rights (split(',',$rights_metadata)) {
8084: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
8085: $metathesekeys{$rights}=1;
1.339 albertel 8086: }
8087: }
8088: }
1.737 albertel 8089: # uniqifiy package listing
8090: my %seen;
8091: my @uniq_packages =
8092: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
8093: $metaentry{':packages'} = join(',',@uniq_packages);
8094:
8095: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 8096: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
8097: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 8098: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 8099: # this is the end of "was not already recently cached
1.71 www 8100: }
1.599 albertel 8101: return $metaentry{':'.$what};
1.261 albertel 8102: }
8103:
1.488 albertel 8104: sub metadata_create_package_def {
1.483 albertel 8105: my ($uri,$key,$package,$metathesekeys)=@_;
8106: my ($pack,$name,$subp)=split(/\&/,$key);
8107: if ($subp eq 'default') { next; }
8108:
1.599 albertel 8109: if (defined($metaentry{':packages'})) {
8110: $metaentry{':packages'}.=','.$package;
1.483 albertel 8111: } else {
1.599 albertel 8112: $metaentry{':packages'}=$package;
1.483 albertel 8113: }
8114: my $value=$packagetab{$key};
8115: my $unikey;
8116: $unikey='parameter_0_'.$name;
1.599 albertel 8117: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 8118: $$metathesekeys{$unikey}=1;
1.599 albertel 8119: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8120: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 8121: }
1.599 albertel 8122: if (defined($metaentry{':'.$unikey.'.default'})) {
8123: $metaentry{':'.$unikey}=
8124: $metaentry{':'.$unikey.'.default'};
1.483 albertel 8125: }
8126: }
8127:
1.261 albertel 8128: sub metadata_generate_part0 {
8129: my ($metadata,$metacache,$uri) = @_;
8130: my %allnames;
1.737 albertel 8131: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 8132: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 8133: my $part=$$metacache{':'.$metakey.'.part'};
8134: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 8135: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 8136: $allnames{$name}=$part;
8137: }
8138: }
8139: }
8140: foreach my $name (keys(%allnames)) {
8141: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 8142: my $key=":parameter_0_$name";
1.261 albertel 8143: $$metacache{"$key.part"}='0';
8144: $$metacache{"$key.name"}=$name;
1.428 albertel 8145: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 8146: $allnames{$name}.'_'.$name.
8147: '.type'};
1.428 albertel 8148: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 8149: '.display'};
1.644 www 8150: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 8151: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 8152: $$metacache{"$key.display"}=$olddis;
8153: }
1.71 www 8154: }
8155:
1.764 albertel 8156: # ------------------------------------------------------ Devalidate title cache
8157:
8158: sub devalidate_title_cache {
8159: my ($url)=@_;
8160: if (!$env{'request.course.id'}) { return; }
8161: my $symb=&symbread($url);
8162: if (!$symb) { return; }
8163: my $key=$env{'request.course.id'}."\0".$symb;
8164: &devalidate_cache_new('title',$key);
8165: }
8166:
1.1014 droeschl 8167: # ------------------------------------------------- Get the title of a course
8168:
8169: sub current_course_title {
8170: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
8171: }
1.301 www 8172: # ------------------------------------------------- Get the title of a resource
8173:
8174: sub gettitle {
8175: my $urlsymb=shift;
8176: my $symb=&symbread($urlsymb);
1.534 albertel 8177: if ($symb) {
1.620 albertel 8178: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 8179: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 8180: if (defined($cached)) {
8181: return $result;
8182: }
1.534 albertel 8183: my ($map,$resid,$url)=&decode_symb($symb);
8184: my $title='';
1.907 albertel 8185: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
8186: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
8187: } else {
8188: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8189: &GDBM_READER(),0640)) {
8190: my $mapid=$bighash{'map_pc_'.&clutter($map)};
8191: $title=$bighash{'title_'.$mapid.'.'.$resid};
8192: untie(%bighash);
8193: }
1.534 albertel 8194: }
8195: $title=~s/\&colon\;/\:/gs;
8196: if ($title) {
1.599 albertel 8197: return &do_cache_new('title',$key,$title,600);
1.534 albertel 8198: }
8199: $urlsymb=$url;
8200: }
8201: my $title=&metadata($urlsymb,'title');
8202: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
8203: return $title;
1.301 www 8204: }
1.613 albertel 8205:
1.614 albertel 8206: sub get_slot {
8207: my ($which,$cnum,$cdom)=@_;
8208: if (!$cnum || !$cdom) {
1.790 albertel 8209: (undef,my $courseid)=&whichuser();
1.620 albertel 8210: $cdom=$env{'course.'.$courseid.'.domain'};
8211: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 8212: }
1.703 albertel 8213: my $key=join("\0",'slots',$cdom,$cnum,$which);
8214: my %slotinfo;
8215: if (exists($remembered{$key})) {
8216: $slotinfo{$which} = $remembered{$key};
8217: } else {
8218: %slotinfo=&get('slots',[$which],$cdom,$cnum);
8219: &Apache::lonhomework::showhash(%slotinfo);
8220: my ($tmp)=keys(%slotinfo);
8221: if ($tmp=~/^error:/) { return (); }
8222: $remembered{$key} = $slotinfo{$which};
8223: }
1.616 albertel 8224: if (ref($slotinfo{$which}) eq 'HASH') {
8225: return %{$slotinfo{$which}};
8226: }
8227: return $slotinfo{$which};
1.614 albertel 8228: }
1.31 www 8229: # ------------------------------------------------- Update symbolic store links
8230:
8231: sub symblist {
8232: my ($mapname,%newhash)=@_;
1.438 www 8233: $mapname=&deversion(&declutter($mapname));
1.31 www 8234: my %hash;
1.620 albertel 8235: if (($env{'request.course.fn'}) && (%newhash)) {
8236: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8237: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 8238: foreach my $url (keys(%newhash)) {
1.711 albertel 8239: next if ($url eq 'last_known'
8240: && $env{'form.no_update_last_known'});
8241: $hash{declutter($url)}=&encode_symb($mapname,
8242: $newhash{$url}->[1],
8243: $newhash{$url}->[0]);
1.191 harris41 8244: }
1.31 www 8245: if (untie(%hash)) {
8246: return 'ok';
8247: }
8248: }
8249: }
8250: return 'error';
1.212 www 8251: }
8252:
8253: # --------------------------------------------------------------- Verify a symb
8254:
8255: sub symbverify {
1.510 www 8256: my ($symb,$thisurl)=@_;
8257: my $thisfn=$thisurl;
1.439 www 8258: $thisfn=&declutter($thisfn);
1.215 www 8259: # direct jump to resource in page or to a sequence - will construct own symbs
8260: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
8261: # check URL part
1.409 www 8262: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 8263:
1.431 www 8264: unless ($url eq $thisfn) { return 0; }
1.213 www 8265:
1.216 www 8266: $symb=&symbclean($symb);
1.510 www 8267: $thisurl=&deversion($thisurl);
1.439 www 8268: $thisfn=&deversion($thisfn);
1.213 www 8269:
8270: my %bighash;
8271: my $okay=0;
1.431 www 8272:
1.620 albertel 8273: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8274: &GDBM_READER(),0640)) {
1.1032 raeburn 8275: if (($thisurl =~ m{^/adm/wrapper/ext/}) || ($thisurl =~ m{^ext/})) {
8276: $thisurl =~ s/\?.+$//;
8277: }
1.510 www 8278: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 8279: unless ($ids) {
1.510 www 8280: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 8281: }
8282: if ($ids) {
8283: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 8284: foreach my $id (split(/\,/,$ids)) {
8285: my ($mapid,$resid)=split(/\./,$id);
1.1032 raeburn 8286: if ($thisfn =~ m{^/adm/wrapper/ext/}) {
8287: $symb =~ s/\?.+$//;
8288: }
1.216 www 8289: if (
8290: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
8291: eq $symb) {
1.620 albertel 8292: if (($env{'request.role.adv'}) ||
1.800 albertel 8293: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 8294: $okay=1;
8295: }
8296: }
1.216 www 8297: }
8298: }
1.213 www 8299: untie(%bighash);
8300: }
8301: return $okay;
1.31 www 8302: }
8303:
1.210 www 8304: # --------------------------------------------------------------- Clean-up symb
8305:
8306: sub symbclean {
8307: my $symb=shift;
1.568 albertel 8308: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 8309: # remove version from map
8310: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 8311:
1.210 www 8312: # remove version from URL
8313: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 8314:
1.507 www 8315: # remove wrapper
8316:
1.510 www 8317: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 8318: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 8319: return $symb;
1.409 www 8320: }
8321:
8322: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 8323:
8324: sub encode_symb {
8325: my ($map,$resid,$url)=@_;
8326: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
8327: }
1.409 www 8328:
8329: sub decode_symb {
1.568 albertel 8330: my $symb=shift;
8331: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
8332: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 8333: return (&fixversion($map),$resid,&fixversion($url));
8334: }
8335:
8336: sub fixversion {
8337: my $fn=shift;
1.609 banghart 8338: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 8339: my %bighash;
8340: my $uri=&clutter($fn);
1.620 albertel 8341: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 8342: # is this cached?
1.599 albertel 8343: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 8344: if (defined($cached)) { return $result; }
8345: # unfortunately not cached, or expired
1.620 albertel 8346: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 8347: &GDBM_READER(),0640)) {
8348: if ($bighash{'version_'.$uri}) {
8349: my $version=$bighash{'version_'.$uri};
1.444 www 8350: unless (($version eq 'mostrecent') ||
8351: ($version==&getversion($uri))) {
1.440 www 8352: $uri=~s/\.(\w+)$/\.$version\.$1/;
8353: }
8354: }
8355: untie %bighash;
1.413 www 8356: }
1.599 albertel 8357: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 8358: }
8359:
8360: sub deversion {
8361: my $url=shift;
8362: $url=~s/\.\d+\.(\w+)$/\.$1/;
8363: return $url;
1.210 www 8364: }
8365:
1.31 www 8366: # ------------------------------------------------------ Return symb list entry
8367:
8368: sub symbread {
1.249 www 8369: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 8370: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 8371: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 8372: # no filename provided? try from environment
1.44 www 8373: unless ($thisfn) {
1.620 albertel 8374: if ($env{'request.symb'}) {
8375: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 8376: }
1.620 albertel 8377: $thisfn=$env{'request.filename'};
1.44 www 8378: }
1.569 albertel 8379: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 8380: # is that filename actually a symb? Verify, clean, and return
8381: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 8382: if (&symbverify($thisfn,$1)) {
1.620 albertel 8383: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 8384: }
1.242 www 8385: }
1.44 www 8386: $thisfn=declutter($thisfn);
1.31 www 8387: my %hash;
1.37 www 8388: my %bighash;
8389: my $syval='';
1.620 albertel 8390: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 8391: my $targetfn = $thisfn;
1.609 banghart 8392: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 8393: $targetfn = 'adm/wrapper/'.$thisfn;
8394: }
1.687 albertel 8395: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
8396: $targetfn=$1;
8397: }
1.620 albertel 8398: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8399: &GDBM_READER(),0640)) {
1.481 raeburn 8400: $syval=$hash{$targetfn};
1.37 www 8401: untie(%hash);
8402: }
8403: # ---------------------------------------------------------- There was an entry
8404: if ($syval) {
1.601 albertel 8405: #unless ($syval=~/\_\d+$/) {
1.620 albertel 8406: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 8407: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8408: #return $env{$cache_str}='';
1.601 albertel 8409: #}
8410: #$syval.=$1;
8411: #}
1.37 www 8412: } else {
8413: # ------------------------------------------------------- Was not in symb table
1.620 albertel 8414: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8415: &GDBM_READER(),0640)) {
1.37 www 8416: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 8417: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 8418: unless ($ids) {
8419: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 8420: }
8421: unless ($ids) {
8422: # alias?
8423: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 8424: }
1.37 www 8425: if ($ids) {
8426: # ------------------------------------------------------------------- Has ID(s)
8427: my @possibilities=split(/\,/,$ids);
1.39 www 8428: if ($#possibilities==0) {
8429: # ----------------------------------------------- There is only one possibility
1.37 www 8430: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 8431: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8432: $resid,$thisfn);
1.249 www 8433: } elsif (!$donotrecurse) {
1.39 www 8434: # ------------------------------------------ There is more than one possibility
8435: my $realpossible=0;
1.800 albertel 8436: foreach my $id (@possibilities) {
8437: my $file=$bighash{'src_'.$id};
1.39 www 8438: if (&allowed('bre',$file)) {
1.800 albertel 8439: my ($mapid,$resid)=split(/\./,$id);
1.39 www 8440: if ($bighash{'map_type_'.$mapid} ne 'page') {
8441: $realpossible++;
1.626 albertel 8442: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8443: $resid,$thisfn);
1.39 www 8444: }
8445: }
1.191 harris41 8446: }
1.39 www 8447: if ($realpossible!=1) { $syval=''; }
1.249 www 8448: } else {
8449: $syval='';
1.37 www 8450: }
8451: }
8452: untie(%bighash)
1.481 raeburn 8453: }
1.31 www 8454: }
1.62 www 8455: if ($syval) {
1.620 albertel 8456: return $env{$cache_str}=$syval;
1.62 www 8457: }
1.31 www 8458: }
1.949 raeburn 8459: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8460: return $env{$cache_str}='';
1.31 www 8461: }
8462:
8463: # ---------------------------------------------------------- Return random seed
8464:
1.32 www 8465: sub numval {
8466: my $txt=shift;
8467: $txt=~tr/A-J/0-9/;
8468: $txt=~tr/a-j/0-9/;
8469: $txt=~tr/K-T/0-9/;
8470: $txt=~tr/k-t/0-9/;
8471: $txt=~tr/U-Z/0-5/;
8472: $txt=~tr/u-z/0-5/;
8473: $txt=~s/\D//g;
1.564 albertel 8474: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 8475: return int($txt);
1.368 albertel 8476: }
8477:
1.484 albertel 8478: sub numval2 {
8479: my $txt=shift;
8480: $txt=~tr/A-J/0-9/;
8481: $txt=~tr/a-j/0-9/;
8482: $txt=~tr/K-T/0-9/;
8483: $txt=~tr/k-t/0-9/;
8484: $txt=~tr/U-Z/0-5/;
8485: $txt=~tr/u-z/0-5/;
8486: $txt=~s/\D//g;
8487: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8488: my $total;
8489: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 8490: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 8491: return int($total);
8492: }
8493:
1.575 albertel 8494: sub numval3 {
8495: use integer;
8496: my $txt=shift;
8497: $txt=~tr/A-J/0-9/;
8498: $txt=~tr/a-j/0-9/;
8499: $txt=~tr/K-T/0-9/;
8500: $txt=~tr/k-t/0-9/;
8501: $txt=~tr/U-Z/0-5/;
8502: $txt=~tr/u-z/0-5/;
8503: $txt=~s/\D//g;
8504: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8505: my $total;
8506: foreach my $val (@txts) { $total+=$val; }
8507: if ($_64bit) { $total=(($total<<32)>>32); }
8508: return $total;
8509: }
8510:
1.675 albertel 8511: sub digest {
8512: my ($data)=@_;
8513: my $digest=&Digest::MD5::md5($data);
8514: my ($a,$b,$c,$d)=unpack("iiii",$digest);
8515: my ($e,$f);
8516: {
8517: use integer;
8518: $e=($a+$b);
8519: $f=($c+$d);
8520: if ($_64bit) {
8521: $e=(($e<<32)>>32);
8522: $f=(($f<<32)>>32);
8523: }
8524: }
8525: if (wantarray) {
8526: return ($e,$f);
8527: } else {
8528: my $g;
8529: {
8530: use integer;
8531: $g=($e+$f);
8532: if ($_64bit) {
8533: $g=(($g<<32)>>32);
8534: }
8535: }
8536: return $g;
8537: }
8538: }
8539:
1.368 albertel 8540: sub latest_rnd_algorithm_id {
1.675 albertel 8541: return '64bit5';
1.366 albertel 8542: }
1.32 www 8543:
1.503 albertel 8544: sub get_rand_alg {
8545: my ($courseid)=@_;
1.790 albertel 8546: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 8547: if ($courseid) {
1.620 albertel 8548: return $env{"course.$courseid.rndseed"};
1.503 albertel 8549: }
8550: return &latest_rnd_algorithm_id();
8551: }
8552:
1.562 albertel 8553: sub validCODE {
8554: my ($CODE)=@_;
8555: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
8556: return 0;
8557: }
8558:
1.491 albertel 8559: sub getCODE {
1.620 albertel 8560: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 8561: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
8562: defined($Apache::lonhomework::parsing_a_task) ) &&
8563: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 8564: return $Apache::lonhomework::history{'resource.CODE'};
8565: }
8566: return undef;
8567: }
8568:
1.31 www 8569: sub rndseed {
1.155 albertel 8570: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 8571: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 8572: if (!defined($symb)) {
1.366 albertel 8573: unless ($symb=$wsymb) { return time; }
8574: }
8575: if (!$courseid) { $courseid=$wcourseid; }
8576: if (!$domain) { $domain=$wdomain; }
8577: if (!$username) { $username=$wusername }
1.503 albertel 8578: my $which=&get_rand_alg();
1.803 albertel 8579:
1.491 albertel 8580: if (defined(&getCODE())) {
1.675 albertel 8581: if ($which eq '64bit5') {
8582: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
8583: } elsif ($which eq '64bit4') {
1.575 albertel 8584: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
8585: } else {
8586: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
8587: }
1.675 albertel 8588: } elsif ($which eq '64bit5') {
8589: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 8590: } elsif ($which eq '64bit4') {
8591: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 8592: } elsif ($which eq '64bit3') {
8593: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 8594: } elsif ($which eq '64bit2') {
8595: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 8596: } elsif ($which eq '64bit') {
8597: return &rndseed_64bit($symb,$courseid,$domain,$username);
8598: }
8599: return &rndseed_32bit($symb,$courseid,$domain,$username);
8600: }
8601:
8602: sub rndseed_32bit {
8603: my ($symb,$courseid,$domain,$username)=@_;
8604: {
8605: use integer;
8606: my $symbchck=unpack("%32C*",$symb) << 27;
8607: my $symbseed=numval($symb) << 22;
8608: my $namechck=unpack("%32C*",$username) << 17;
8609: my $nameseed=numval($username) << 12;
8610: my $domainseed=unpack("%32C*",$domain) << 7;
8611: my $courseseed=unpack("%32C*",$courseid);
8612: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 8613: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8614: #&logthis("rndseed :$num:$symb");
1.564 albertel 8615: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 8616: return $num;
8617: }
8618: }
8619:
8620: sub rndseed_64bit {
8621: my ($symb,$courseid,$domain,$username)=@_;
8622: {
8623: use integer;
8624: my $symbchck=unpack("%32S*",$symb) << 21;
8625: my $symbseed=numval($symb) << 10;
8626: my $namechck=unpack("%32S*",$username);
8627:
8628: my $nameseed=numval($username) << 21;
8629: my $domainseed=unpack("%32S*",$domain) << 10;
8630: my $courseseed=unpack("%32S*",$courseid);
8631:
8632: my $num1=$symbchck+$symbseed+$namechck;
8633: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8634: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8635: #&logthis("rndseed :$num:$symb");
1.564 albertel 8636: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 8637: return "$num1,$num2";
1.155 albertel 8638: }
1.366 albertel 8639: }
8640:
1.443 albertel 8641: sub rndseed_64bit2 {
8642: my ($symb,$courseid,$domain,$username)=@_;
8643: {
8644: use integer;
8645: # strings need to be an even # of cahracters long, it it is odd the
8646: # last characters gets thrown away
8647: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8648: my $symbseed=numval($symb) << 10;
8649: my $namechck=unpack("%32S*",$username.' ');
8650:
8651: my $nameseed=numval($username) << 21;
1.501 albertel 8652: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8653: my $courseseed=unpack("%32S*",$courseid.' ');
8654:
8655: my $num1=$symbchck+$symbseed+$namechck;
8656: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8657: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8658: #&logthis("rndseed :$num:$symb");
1.803 albertel 8659: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 8660: return "$num1,$num2";
8661: }
8662: }
8663:
8664: sub rndseed_64bit3 {
8665: my ($symb,$courseid,$domain,$username)=@_;
8666: {
8667: use integer;
8668: # strings need to be an even # of cahracters long, it it is odd the
8669: # last characters gets thrown away
8670: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8671: my $symbseed=numval2($symb) << 10;
8672: my $namechck=unpack("%32S*",$username.' ');
8673:
8674: my $nameseed=numval2($username) << 21;
1.443 albertel 8675: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8676: my $courseseed=unpack("%32S*",$courseid.' ');
8677:
8678: my $num1=$symbchck+$symbseed+$namechck;
8679: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8680: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8681: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 8682: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8683:
1.503 albertel 8684: return "$num1:$num2";
1.443 albertel 8685: }
8686: }
8687:
1.575 albertel 8688: sub rndseed_64bit4 {
8689: my ($symb,$courseid,$domain,$username)=@_;
8690: {
8691: use integer;
8692: # strings need to be an even # of cahracters long, it it is odd the
8693: # last characters gets thrown away
8694: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8695: my $symbseed=numval3($symb) << 10;
8696: my $namechck=unpack("%32S*",$username.' ');
8697:
8698: my $nameseed=numval3($username) << 21;
8699: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8700: my $courseseed=unpack("%32S*",$courseid.' ');
8701:
8702: my $num1=$symbchck+$symbseed+$namechck;
8703: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8704: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8705: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 8706: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8707:
8708: return "$num1:$num2";
8709: }
8710: }
8711:
1.675 albertel 8712: sub rndseed_64bit5 {
8713: my ($symb,$courseid,$domain,$username)=@_;
8714: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
8715: return "$num1:$num2";
8716: }
8717:
1.366 albertel 8718: sub rndseed_CODE_64bit {
8719: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 8720: {
1.366 albertel 8721: use integer;
1.443 albertel 8722: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 8723: my $symbseed=numval2($symb);
1.491 albertel 8724: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8725: my $CODEseed=numval(&getCODE());
1.443 albertel 8726: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 8727: my $num1=$symbseed+$CODEchck;
8728: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8729: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8730: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 8731: if ($_64bit) { $num1=(($num1<<32)>>32); }
8732: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 8733: return "$num1:$num2";
1.366 albertel 8734: }
8735: }
8736:
1.575 albertel 8737: sub rndseed_CODE_64bit4 {
8738: my ($symb,$courseid,$domain,$username)=@_;
8739: {
8740: use integer;
8741: my $symbchck=unpack("%32S*",$symb.' ') << 16;
8742: my $symbseed=numval3($symb);
8743: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8744: my $CODEseed=numval3(&getCODE());
8745: my $courseseed=unpack("%32S*",$courseid.' ');
8746: my $num1=$symbseed+$CODEchck;
8747: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8748: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8749: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 8750: if ($_64bit) { $num1=(($num1<<32)>>32); }
8751: if ($_64bit) { $num2=(($num2<<32)>>32); }
8752: return "$num1:$num2";
8753: }
8754: }
8755:
1.675 albertel 8756: sub rndseed_CODE_64bit5 {
8757: my ($symb,$courseid,$domain,$username)=@_;
8758: my $code = &getCODE();
8759: my ($num1,$num2)=&digest("$symb,$courseid,$code");
8760: return "$num1:$num2";
8761: }
8762:
1.366 albertel 8763: sub setup_random_from_rndseed {
8764: my ($rndseed)=@_;
1.503 albertel 8765: if ($rndseed =~/([,:])/) {
8766: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 8767: &Math::Random::random_set_seed(abs($num1),abs($num2));
8768: } else {
8769: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 8770: }
1.36 albertel 8771: }
8772:
1.474 albertel 8773: sub latest_receipt_algorithm_id {
1.835 albertel 8774: return 'receipt3';
1.474 albertel 8775: }
8776:
1.480 www 8777: sub recunique {
8778: my $fucourseid=shift;
8779: my $unique;
1.835 albertel 8780: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
8781: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8782: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 8783: } else {
8784: $unique=$perlvar{'lonReceipt'};
8785: }
8786: return unpack("%32C*",$unique);
8787: }
8788:
8789: sub recprefix {
8790: my $fucourseid=shift;
8791: my $prefix;
1.835 albertel 8792: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
8793: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8794: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 8795: } else {
8796: $prefix=$perlvar{'lonHostID'};
8797: }
8798: return unpack("%32C*",$prefix);
8799: }
8800:
1.76 www 8801: sub ireceipt {
1.474 albertel 8802: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 8803:
8804: my $return =&recprefix($fucourseid).'-';
8805:
8806: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
8807: $env{'request.state'} eq 'construct') {
8808: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
8809: return $return;
8810: }
8811:
1.76 www 8812: my $cuname=unpack("%32C*",$funame);
8813: my $cudom=unpack("%32C*",$fudom);
8814: my $cucourseid=unpack("%32C*",$fucourseid);
8815: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 8816: my $cunique=&recunique($fucourseid);
1.474 albertel 8817: my $cpart=unpack("%32S*",$part);
1.835 albertel 8818: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
8819:
1.790 albertel 8820: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 8821:
8822: $return.= ($cunique%$cuname+
8823: $cunique%$cudom+
8824: $cusymb%$cuname+
8825: $cusymb%$cudom+
8826: $cucourseid%$cuname+
8827: $cucourseid%$cudom+
8828: $cpart%$cuname+
8829: $cpart%$cudom);
8830: } else {
8831: $return.= ($cunique%$cuname+
8832: $cunique%$cudom+
8833: $cusymb%$cuname+
8834: $cusymb%$cudom+
8835: $cucourseid%$cuname+
8836: $cucourseid%$cudom);
8837: }
8838: return $return;
1.76 www 8839: }
8840:
8841: sub receipt {
1.474 albertel 8842: my ($part)=@_;
1.790 albertel 8843: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 8844: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 8845: }
1.260 ng 8846:
1.790 albertel 8847: sub whichuser {
8848: my ($passedsymb)=@_;
8849: my ($symb,$courseid,$domain,$name,$publicuser);
8850: if (defined($env{'form.grade_symb'})) {
8851: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
8852: my $allowed=&allowed('vgr',$tmp_courseid);
8853: if (!$allowed &&
8854: exists($env{'request.course.sec'}) &&
8855: $env{'request.course.sec'} !~ /^\s*$/) {
8856: $allowed=&allowed('vgr',$tmp_courseid.
8857: '/'.$env{'request.course.sec'});
8858: }
8859: if ($allowed) {
8860: ($symb)=&get_env_multiple('form.grade_symb');
8861: $courseid=$tmp_courseid;
8862: ($domain)=&get_env_multiple('form.grade_domain');
8863: ($name)=&get_env_multiple('form.grade_username');
8864: return ($symb,$courseid,$domain,$name,$publicuser);
8865: }
8866: }
8867: if (!$passedsymb) {
8868: $symb=&symbread();
8869: } else {
8870: $symb=$passedsymb;
8871: }
8872: $courseid=$env{'request.course.id'};
8873: $domain=$env{'user.domain'};
8874: $name=$env{'user.name'};
8875: if ($name eq 'public' && $domain eq 'public') {
8876: if (!defined($env{'form.username'})) {
8877: $env{'form.username'}.=time.rand(10000000);
8878: }
8879: $name.=$env{'form.username'};
8880: }
8881: return ($symb,$courseid,$domain,$name,$publicuser);
8882:
8883: }
8884:
1.36 albertel 8885: # ------------------------------------------------------------ Serves up a file
1.472 albertel 8886: # returns either the contents of the file or
8887: # -1 if the file doesn't exist
1.481 raeburn 8888: #
8889: # if the target is a file that was uploaded via DOCS,
8890: # a check will be made to see if a current copy exists on the local server,
8891: # if it does this will be served, otherwise a copy will be retrieved from
8892: # the home server for the course and stored in /home/httpd/html/userfiles on
8893: # the local server.
1.472 albertel 8894:
1.36 albertel 8895: sub getfile {
1.538 albertel 8896: my ($file) = @_;
1.609 banghart 8897: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 8898: &repcopy($file);
8899: return &readfile($file);
8900: }
8901:
8902: sub repcopy_userfile {
8903: my ($file)=@_;
1.609 banghart 8904: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 8905: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 8906: my ($cdom,$cnum,$filename) =
1.811 albertel 8907: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 8908: my $uri="/uploaded/$cdom/$cnum/$filename";
8909: if (-e "$file") {
1.828 www 8910: # we already have a local copy, check it out
1.538 albertel 8911: my @fileinfo = stat($file);
1.828 www 8912: my $rtncode;
8913: my $info;
1.538 albertel 8914: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 8915: if ($lwpresp ne 'ok') {
1.828 www 8916: # there is no such file anymore, even though we had a local copy
1.482 albertel 8917: if ($rtncode eq '404') {
1.538 albertel 8918: unlink($file);
1.482 albertel 8919: }
8920: return -1;
8921: }
8922: if ($info < $fileinfo[9]) {
1.828 www 8923: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 8924: return 'ok';
1.828 www 8925: } else {
8926: # the file is outdated, get rid of it
8927: unlink($file);
1.482 albertel 8928: }
1.828 www 8929: }
8930: # one way or the other, at this point, we don't have the file
8931: # construct the correct path for the file
8932: my @parts = ($cdom,$cnum);
8933: if ($filename =~ m|^(.+)/[^/]+$|) {
8934: push @parts, split(/\//,$1);
8935: }
8936: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
8937: foreach my $part (@parts) {
8938: $path .= '/'.$part;
8939: if (!-e $path) {
8940: mkdir($path,0770);
1.482 albertel 8941: }
8942: }
1.828 www 8943: # now the path exists for sure
8944: # get a user agent
8945: my $ua=new LWP::UserAgent;
8946: my $transferfile=$file.'.in.transfer';
8947: # FIXME: this should flock
8948: if (-e $transferfile) { return 'ok'; }
8949: my $request;
8950: $uri=~s/^\///;
1.980 raeburn 8951: my $homeserver = &homeserver($cnum,$cdom);
8952: my $protocol = $protocol{$homeserver};
8953: $protocol = 'http' if ($protocol ne 'https');
8954: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 8955: my $response=$ua->request($request,$transferfile);
8956: # did it work?
8957: if ($response->is_error()) {
8958: unlink($transferfile);
8959: &logthis("Userfile repcopy failed for $uri");
8960: return -1;
8961: }
8962: # worked, rename the transfer file
8963: rename($transferfile,$file);
1.607 raeburn 8964: return 'ok';
1.481 raeburn 8965: }
8966:
1.517 albertel 8967: sub tokenwrapper {
8968: my $uri=shift;
1.980 raeburn 8969: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 8970: $uri=~s|^/||;
1.620 albertel 8971: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 8972: my $token=$1;
1.552 albertel 8973: my (undef,$udom,$uname,$file)=split('/',$uri,4);
8974: if ($udom && $uname && $file) {
8975: $file=~s|(\?\.*)*$||;
1.949 raeburn 8976: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 8977: my $homeserver = &homeserver($uname,$udom);
8978: my $protocol = $protocol{$homeserver};
8979: $protocol = 'http' if ($protocol ne 'https');
8980: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 8981: (($uri=~/\?/)?'&':'?').'token='.$token.
8982: '&tokenissued='.$perlvar{'lonHostID'};
8983: } else {
8984: return '/adm/notfound.html';
8985: }
8986: }
8987:
1.828 www 8988: # call with reqtype HEAD: get last modification time
8989: # call with reqtype GET: get the file contents
8990: # Do not call this with reqtype GET for large files! It loads everything into memory
8991: #
1.481 raeburn 8992: sub getuploaded {
8993: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
8994: $uri=~s/^\///;
1.980 raeburn 8995: my $homeserver = &homeserver($cnum,$cdom);
8996: my $protocol = $protocol{$homeserver};
8997: $protocol = 'http' if ($protocol ne 'https');
8998: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 8999: my $ua=new LWP::UserAgent;
9000: my $request=new HTTP::Request($reqtype,$uri);
9001: my $response=$ua->request($request);
9002: $$rtncode = $response->code;
1.482 albertel 9003: if (! $response->is_success()) {
9004: return 'failed';
9005: }
9006: if ($reqtype eq 'HEAD') {
1.486 www 9007: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 9008: } elsif ($reqtype eq 'GET') {
9009: $$info = $response->content;
1.472 albertel 9010: }
1.482 albertel 9011: return 'ok';
1.36 albertel 9012: }
9013:
1.481 raeburn 9014: sub readfile {
9015: my $file = shift;
9016: if ( (! -e $file ) || ($file eq '') ) { return -1; };
9017: my $fh;
9018: open($fh,"<$file");
9019: my $a='';
1.800 albertel 9020: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 9021: return $a;
9022: }
9023:
1.36 albertel 9024: sub filelocation {
1.590 banghart 9025: my ($dir,$file) = @_;
9026: my $location;
9027: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 9028:
9029: if ($file =~ m-^/adm/-) {
9030: $file=~s-^/adm/wrapper/-/-;
9031: $file=~s-^/adm/coursedocs/showdoc/-/-;
9032: }
1.882 albertel 9033:
1.590 banghart 9034: if ($file=~m:^/~:) { # is a contruction space reference
9035: $location = $file;
9036: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 9037: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 9038: # is a correct contruction space reference
9039: $location = $file;
1.956 raeburn 9040: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
9041: $location = $file;
1.609 banghart 9042: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 9043: my ($udom,$uname,$filename)=
1.811 albertel 9044: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 9045: my $home=&homeserver($uname,$udom);
9046: my $is_me=0;
9047: my @ids=¤t_machine_ids();
9048: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
9049: if ($is_me) {
1.955 raeburn 9050: $location=&propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 9051: } else {
9052: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
9053: $udom.'/'.$uname.'/'.$filename;
9054: }
1.882 albertel 9055: } elsif ($file =~ m-^/adm/-) {
9056: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 9057: } else {
9058: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
9059: $file=~s:^/res/:/:;
9060: if ( !( $file =~ m:^/:) ) {
9061: $location = $dir. '/'.$file;
9062: } else {
9063: $location = '/home/httpd/html/res'.$file;
9064: }
1.59 albertel 9065: }
1.590 banghart 9066: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 9067: while ($location=~m{/\.\./}) {
9068: if ($location =~ m{/[^/]+/\.\./}) {
9069: $location=~ s{/[^/]+/\.\./}{/}g;
9070: } else {
9071: $location=~ s{/\.\./}{/}g;
9072: }
9073: } #remove dir/..
1.590 banghart 9074: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
9075: return $location;
1.46 www 9076: }
1.36 albertel 9077:
1.46 www 9078: sub hreflocation {
9079: my ($dir,$file)=@_;
1.980 raeburn 9080: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 9081: $file=filelocation($dir,$file);
1.700 albertel 9082: } elsif ($file=~m-^/adm/-) {
9083: $file=~s-^/adm/wrapper/-/-;
9084: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 9085: }
9086: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
9087: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 9088: } elsif ($file=~m-/home/($match_username)/public_html/-) {
9089: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 9090: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 9091: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 9092: -/uploaded/$1/$2/-x;
1.46 www 9093: }
1.913 albertel 9094: if ($file=~ m{^/userfiles/}) {
9095: $file =~ s{^/userfiles/}{/uploaded/};
9096: }
1.462 albertel 9097: return $file;
1.465 albertel 9098: }
9099:
9100: sub current_machine_domains {
1.853 albertel 9101: return &machine_domains(&hostname($perlvar{'lonHostID'}));
9102: }
9103:
9104: sub machine_domains {
9105: my ($hostname) = @_;
1.465 albertel 9106: my @domains;
1.838 albertel 9107: my %hostname = &all_hostnames();
1.465 albertel 9108: while( my($id, $name) = each(%hostname)) {
1.467 matthew 9109: # &logthis("-$id-$name-$hostname-");
1.465 albertel 9110: if ($hostname eq $name) {
1.844 albertel 9111: push(@domains,&host_domain($id));
1.465 albertel 9112: }
9113: }
9114: return @domains;
9115: }
9116:
9117: sub current_machine_ids {
1.853 albertel 9118: return &machine_ids(&hostname($perlvar{'lonHostID'}));
9119: }
9120:
9121: sub machine_ids {
9122: my ($hostname) = @_;
9123: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 9124: my @ids;
1.888 albertel 9125: my %name_to_host = &all_names();
1.889 albertel 9126: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
9127: return @{ $name_to_host{$hostname} };
9128: }
9129: return;
1.31 www 9130: }
9131:
1.824 raeburn 9132: sub additional_machine_domains {
9133: my @domains;
9134: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
9135: while( my $line = <$fh>) {
9136: $line =~ s/\s//g;
9137: push(@domains,$line);
9138: }
9139: return @domains;
9140: }
9141:
9142: sub default_login_domain {
9143: my $domain = $perlvar{'lonDefDomain'};
9144: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
9145: foreach my $posdom (¤t_machine_domains(),
9146: &additional_machine_domains()) {
9147: if (lc($posdom) eq lc($testdomain)) {
9148: $domain=$posdom;
9149: last;
9150: }
9151: }
9152: return $domain;
9153: }
9154:
1.31 www 9155: # ------------------------------------------------------------- Declutters URLs
9156:
9157: sub declutter {
9158: my $thisfn=shift;
1.569 albertel 9159: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 9160: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 9161: $thisfn=~s/^\///;
1.697 albertel 9162: $thisfn=~s|^adm/wrapper/||;
9163: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 9164: $thisfn=~s/^res\///;
1.1032 raeburn 9165: unless (($thisfn =~ /^ext/) || ($thisfn =~ /\.(page|sequence)___\d+___ext/)) {
9166: $thisfn=~s/\?.+$//;
9167: }
1.268 www 9168: return $thisfn;
9169: }
9170:
9171: # ------------------------------------------------------------- Clutter up URLs
9172:
9173: sub clutter {
9174: my $thisfn='/'.&declutter(shift);
1.887 albertel 9175: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 9176: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 9177: $thisfn='/res'.$thisfn;
9178: }
1.1031 raeburn 9179: if ($thisfn !~m|^/adm|) {
9180: if ($thisfn =~ m|^/ext/|) {
1.694 albertel 9181: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 9182: } else {
9183: my ($ext) = ($thisfn =~ /\.(\w+)$/);
9184: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 9185: if ($embstyle eq 'ssi'
9186: || ($embstyle eq 'hdn')
9187: || ($embstyle eq 'rat')
9188: || ($embstyle eq 'prv')
9189: || ($embstyle eq 'ign')) {
9190: #do nothing with these
9191: } elsif (($embstyle eq 'img')
1.695 albertel 9192: || ($embstyle eq 'emb')
9193: || ($embstyle eq 'wrp')) {
9194: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 9195: } elsif ($embstyle eq 'unk'
9196: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 9197: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 9198: } else {
1.718 www 9199: # &logthis("Got a blank emb style");
1.695 albertel 9200: }
1.694 albertel 9201: }
9202: }
1.31 www 9203: return $thisfn;
1.12 www 9204: }
9205:
1.787 albertel 9206: sub clutter_with_no_wrapper {
9207: my $uri = &clutter(shift);
9208: if ($uri =~ m-^/adm/-) {
9209: $uri =~ s-^/adm/wrapper/-/-;
9210: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
9211: }
9212: return $uri;
9213: }
9214:
1.557 albertel 9215: sub freeze_escape {
9216: my ($value)=@_;
9217: if (ref($value)) {
9218: $value=&nfreeze($value);
9219: return '__FROZEN__'.&escape($value);
9220: }
9221: return &escape($value);
9222: }
9223:
1.11 www 9224:
1.557 albertel 9225: sub thaw_unescape {
9226: my ($value)=@_;
9227: if ($value =~ /^__FROZEN__/) {
9228: substr($value,0,10,undef);
9229: $value=&unescape($value);
9230: return &thaw($value);
9231: }
9232: return &unescape($value);
9233: }
9234:
1.436 albertel 9235: sub correct_line_ends {
9236: my ($result)=@_;
9237: $$result =~s/\r\n/\n/mg;
9238: $$result =~s/\r/\n/mg;
1.415 albertel 9239: }
1.1 albertel 9240: # ================================================================ Main Program
9241:
1.184 www 9242: sub goodbye {
1.204 albertel 9243: &logthis("Starting Shut down");
1.443 albertel 9244: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 9245: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 9246: #converted
1.599 albertel 9247: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 9248: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
9249: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
9250: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 9251: #1.1 only
1.870 albertel 9252: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
9253: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
9254: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
9255: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
9256: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 9257: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
9258: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 9259: &flushcourselogs();
9260: &logthis("Shutting down");
9261: }
9262:
1.852 albertel 9263: sub get_dns {
1.869 albertel 9264: my ($url,$func,$ignore_cache) = @_;
9265: if (!$ignore_cache) {
9266: my ($content,$cached)=
9267: &Apache::lonnet::is_cached_new('dns',$url);
9268: if ($cached) {
9269: &$func($content);
9270: return;
9271: }
9272: }
9273:
9274: my %alldns;
1.852 albertel 9275: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9276: foreach my $dns (<$config>) {
9277: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 9278: my $line = $1;
9279: my ($host,$protocol) = split(/:/,$line);
9280: if ($protocol ne 'https') {
9281: $protocol = 'http';
9282: }
9283: $alldns{$host} = $protocol;
1.869 albertel 9284: }
9285: while (%alldns) {
9286: my ($dns) = keys(%alldns);
1.852 albertel 9287: my $ua=new LWP::UserAgent;
1.979 raeburn 9288: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 9289: my $response=$ua->request($request);
1.979 raeburn 9290: delete($alldns{$dns});
1.852 albertel 9291: next if ($response->is_error());
9292: my @content = split("\n",$response->content);
1.869 albertel 9293: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 9294: &$func(\@content);
1.869 albertel 9295: return;
1.852 albertel 9296: }
9297: close($config);
1.871 albertel 9298: my $which = (split('/',$url))[3];
9299: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
9300: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 9301: my @content = <$config>;
9302: &$func(\@content);
9303: return;
1.852 albertel 9304: }
1.327 albertel 9305: # ------------------------------------------------------------ Read domain file
9306: {
1.852 albertel 9307: my $loaded;
1.846 albertel 9308: my %domain;
9309:
1.852 albertel 9310: sub parse_domain_tab {
9311: my ($lines) = @_;
9312: foreach my $line (@$lines) {
9313: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 9314:
1.846 albertel 9315: chomp($line);
1.852 albertel 9316: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 9317: my %this_domain;
9318: foreach my $field ('description', 'auth_def', 'auth_arg_def',
9319: 'lang_def', 'city', 'longi', 'lati',
9320: 'primary') {
9321: $this_domain{$field} = shift(@elements);
9322: }
9323: $domain{$name} = \%this_domain;
1.852 albertel 9324: }
9325: }
1.864 albertel 9326:
9327: sub reset_domain_info {
9328: undef($loaded);
9329: undef(%domain);
9330: }
9331:
1.852 albertel 9332: sub load_domain_tab {
1.869 albertel 9333: my ($ignore_cache) = @_;
9334: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 9335: my $fh;
9336: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
9337: my @lines = <$fh>;
9338: &parse_domain_tab(\@lines);
1.448 albertel 9339: }
1.852 albertel 9340: close($fh);
9341: $loaded = 1;
1.327 albertel 9342: }
1.846 albertel 9343:
9344: sub domain {
1.852 albertel 9345: &load_domain_tab() if (!$loaded);
9346:
1.846 albertel 9347: my ($name,$what) = @_;
9348: return if ( !exists($domain{$name}) );
9349:
9350: if (!$what) {
9351: return $domain{$name}{'description'};
9352: }
9353: return $domain{$name}{$what};
9354: }
1.974 raeburn 9355:
9356: sub domain_info {
9357: &load_domain_tab() if (!$loaded);
9358: return %domain;
9359: }
9360:
1.327 albertel 9361: }
9362:
9363:
1.1 albertel 9364: # ------------------------------------------------------------- Read hosts file
9365: {
1.838 albertel 9366: my %hostname;
1.844 albertel 9367: my %hostdom;
1.845 albertel 9368: my %libserv;
1.852 albertel 9369: my $loaded;
1.888 albertel 9370: my %name_to_host;
1.852 albertel 9371:
9372: sub parse_hosts_tab {
9373: my ($file) = @_;
9374: foreach my $configline (@$file) {
9375: next if ($configline =~ /^(\#|\s*$ )/x);
9376: next if ($configline =~ /^\^/);
9377: chomp($configline);
1.968 raeburn 9378: my ($id,$domain,$role,$name,$protocol)=split(/:/,$configline);
1.852 albertel 9379: $name=~s/\s//g;
9380: if ($id && $domain && $role && $name) {
9381: $hostname{$id}=$name;
1.888 albertel 9382: push(@{$name_to_host{$name}}, $id);
1.852 albertel 9383: $hostdom{$id}=$domain;
9384: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 9385: if (defined($protocol)) {
9386: if ($protocol eq 'https') {
9387: $protocol{$id} = $protocol;
9388: } else {
9389: $protocol{$id} = 'http';
9390: }
1.968 raeburn 9391: } else {
1.969 raeburn 9392: $protocol{$id} = 'http';
1.968 raeburn 9393: }
1.852 albertel 9394: }
9395: }
9396: }
1.864 albertel 9397:
9398: sub reset_hosts_info {
1.897 albertel 9399: &purge_remembered();
1.864 albertel 9400: &reset_domain_info();
9401: &reset_hosts_ip_info();
1.892 albertel 9402: undef(%name_to_host);
1.864 albertel 9403: undef(%hostname);
9404: undef(%hostdom);
9405: undef(%libserv);
9406: undef($loaded);
9407: }
1.1 albertel 9408:
1.852 albertel 9409: sub load_hosts_tab {
1.869 albertel 9410: my ($ignore_cache) = @_;
9411: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 9412: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9413: my @config = <$config>;
9414: &parse_hosts_tab(\@config);
9415: close($config);
9416: $loaded=1;
1.1 albertel 9417: }
1.852 albertel 9418:
1.838 albertel 9419: sub hostname {
1.852 albertel 9420: &load_hosts_tab() if (!$loaded);
9421:
1.838 albertel 9422: my ($lonid) = @_;
9423: return $hostname{$lonid};
9424: }
1.845 albertel 9425:
1.838 albertel 9426: sub all_hostnames {
1.852 albertel 9427: &load_hosts_tab() if (!$loaded);
9428:
1.838 albertel 9429: return %hostname;
9430: }
1.845 albertel 9431:
1.888 albertel 9432: sub all_names {
9433: &load_hosts_tab() if (!$loaded);
9434:
9435: return %name_to_host;
9436: }
9437:
1.974 raeburn 9438: sub all_host_domain {
9439: &load_hosts_tab() if (!$loaded);
9440: return %hostdom;
9441: }
9442:
1.845 albertel 9443: sub is_library {
1.852 albertel 9444: &load_hosts_tab() if (!$loaded);
9445:
1.845 albertel 9446: return exists($libserv{$_[0]});
9447: }
9448:
9449: sub all_library {
1.852 albertel 9450: &load_hosts_tab() if (!$loaded);
9451:
1.845 albertel 9452: return %libserv;
9453: }
9454:
1.841 albertel 9455: sub get_servers {
1.852 albertel 9456: &load_hosts_tab() if (!$loaded);
9457:
1.841 albertel 9458: my ($domain,$type) = @_;
9459: my %possible_hosts = ($type eq 'library') ? %libserv
9460: : %hostname;
9461: my %result;
1.842 albertel 9462: if (ref($domain) eq 'ARRAY') {
9463: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 9464: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 9465: $result{$host} = $hostname;
9466: }
9467: }
9468: } else {
9469: while ( my ($host,$hostname) = each(%possible_hosts)) {
9470: if ($hostdom{$host} eq $domain) {
9471: $result{$host} = $hostname;
9472: }
1.841 albertel 9473: }
9474: }
9475: return %result;
9476: }
1.845 albertel 9477:
1.844 albertel 9478: sub host_domain {
1.852 albertel 9479: &load_hosts_tab() if (!$loaded);
9480:
1.844 albertel 9481: my ($lonid) = @_;
9482: return $hostdom{$lonid};
9483: }
9484:
1.841 albertel 9485: sub all_domains {
1.852 albertel 9486: &load_hosts_tab() if (!$loaded);
9487:
1.841 albertel 9488: my %seen;
9489: my @uniq = grep(!$seen{$_}++, values(%hostdom));
9490: return @uniq;
9491: }
1.1 albertel 9492: }
9493:
1.847 albertel 9494: {
9495: my %iphost;
1.856 albertel 9496: my %name_to_ip;
9497: my %lonid_to_ip;
1.869 albertel 9498:
1.847 albertel 9499: sub get_hosts_from_ip {
9500: my ($ip) = @_;
9501: my %iphosts = &get_iphost();
9502: if (ref($iphosts{$ip})) {
9503: return @{$iphosts{$ip}};
9504: }
9505: return;
1.839 albertel 9506: }
1.864 albertel 9507:
9508: sub reset_hosts_ip_info {
9509: undef(%iphost);
9510: undef(%name_to_ip);
9511: undef(%lonid_to_ip);
9512: }
1.856 albertel 9513:
9514: sub get_host_ip {
9515: my ($lonid) = @_;
9516: if (exists($lonid_to_ip{$lonid})) {
9517: return $lonid_to_ip{$lonid};
9518: }
9519: my $name=&hostname($lonid);
9520: my $ip = gethostbyname($name);
9521: return if (!$ip || length($ip) ne 4);
9522: $ip=inet_ntoa($ip);
9523: $name_to_ip{$name} = $ip;
9524: $lonid_to_ip{$lonid} = $ip;
9525: return $ip;
9526: }
1.847 albertel 9527:
9528: sub get_iphost {
1.869 albertel 9529: my ($ignore_cache) = @_;
1.894 albertel 9530:
1.869 albertel 9531: if (!$ignore_cache) {
9532: if (%iphost) {
9533: return %iphost;
9534: }
9535: my ($ip_info,$cached)=
9536: &Apache::lonnet::is_cached_new('iphost','iphost');
9537: if ($cached) {
9538: %iphost = %{$ip_info->[0]};
9539: %name_to_ip = %{$ip_info->[1]};
9540: %lonid_to_ip = %{$ip_info->[2]};
9541: return %iphost;
9542: }
9543: }
1.894 albertel 9544:
9545: # get yesterday's info for fallback
9546: my %old_name_to_ip;
9547: my ($ip_info,$cached)=
9548: &Apache::lonnet::is_cached_new('iphost','iphost');
9549: if ($cached) {
9550: %old_name_to_ip = %{$ip_info->[1]};
9551: }
9552:
1.888 albertel 9553: my %name_to_host = &all_names();
9554: foreach my $name (keys(%name_to_host)) {
1.847 albertel 9555: my $ip;
9556: if (!exists($name_to_ip{$name})) {
9557: $ip = gethostbyname($name);
9558: if (!$ip || length($ip) ne 4) {
1.894 albertel 9559: if (defined($old_name_to_ip{$name})) {
9560: $ip = $old_name_to_ip{$name};
9561: &logthis("Can't find $name defaulting to old $ip");
9562: } else {
9563: &logthis("Name $name no IP found");
9564: next;
9565: }
9566: } else {
9567: $ip=inet_ntoa($ip);
1.847 albertel 9568: }
9569: $name_to_ip{$name} = $ip;
9570: } else {
9571: $ip = $name_to_ip{$name};
1.653 albertel 9572: }
1.888 albertel 9573: foreach my $id (@{ $name_to_host{$name} }) {
9574: $lonid_to_ip{$id} = $ip;
9575: }
9576: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 9577: }
1.869 albertel 9578: &Apache::lonnet::do_cache_new('iphost','iphost',
9579: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 9580: 48*60*60);
1.869 albertel 9581:
1.847 albertel 9582: return %iphost;
1.598 albertel 9583: }
9584:
1.992 raeburn 9585: #
9586: # Given a DNS returns the loncapa host name for that DNS
9587: #
9588: sub host_from_dns {
9589: my ($dns) = @_;
9590: my @hosts;
9591: my $ip;
9592:
1.993 raeburn 9593: if (exists($name_to_ip{$dns})) {
1.992 raeburn 9594: $ip = $name_to_ip{$dns};
9595: }
9596: if (!$ip) {
9597: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
9598: if (length($ip) == 4) {
9599: $ip = &IO::Socket::inet_ntoa($ip);
9600: }
9601: }
9602: if ($ip) {
9603: @hosts = get_hosts_from_ip($ip);
9604: return $hosts[0];
9605: }
9606: return undef;
1.986 foxr 9607: }
1.992 raeburn 9608:
1.986 foxr 9609: }
9610:
1.862 albertel 9611: BEGIN {
9612:
9613: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
9614: unless ($readit) {
9615: {
9616: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
9617: %perlvar = (%perlvar,%{$configvars});
9618: }
9619:
9620:
1.1 albertel 9621: # ------------------------------------------------------ Read spare server file
9622: {
1.448 albertel 9623: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 9624:
9625: while (my $configline=<$config>) {
9626: chomp($configline);
1.284 matthew 9627: if ($configline) {
1.784 albertel 9628: my ($host,$type) = split(':',$configline,2);
1.785 albertel 9629: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 9630: push(@{ $spareid{$type} }, $host);
1.1 albertel 9631: }
9632: }
1.448 albertel 9633: close($config);
1.1 albertel 9634: }
1.11 www 9635: # ------------------------------------------------------------ Read permissions
9636: {
1.448 albertel 9637: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 9638:
9639: while (my $configline=<$config>) {
1.448 albertel 9640: chomp($configline);
9641: if ($configline) {
9642: my ($role,$perm)=split(/ /,$configline);
9643: if ($perm ne '') { $pr{$role}=$perm; }
9644: }
1.11 www 9645: }
1.448 albertel 9646: close($config);
1.11 www 9647: }
9648:
9649: # -------------------------------------------- Read plain texts for permissions
9650: {
1.448 albertel 9651: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 9652:
9653: while (my $configline=<$config>) {
1.448 albertel 9654: chomp($configline);
9655: if ($configline) {
1.742 raeburn 9656: my ($short,@plain)=split(/:/,$configline);
9657: %{$prp{$short}} = ();
9658: if (@plain > 0) {
9659: $prp{$short}{'std'} = $plain[0];
9660: for (my $i=1; $i<@plain; $i++) {
9661: $prp{$short}{'alt'.$i} = $plain[$i];
9662: }
9663: }
1.448 albertel 9664: }
1.135 www 9665: }
1.448 albertel 9666: close($config);
1.135 www 9667: }
9668:
9669: # ---------------------------------------------------------- Read package table
9670: {
1.448 albertel 9671: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 9672:
9673: while (my $configline=<$config>) {
1.483 albertel 9674: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 9675: chomp($configline);
9676: my ($short,$plain)=split(/:/,$configline);
9677: my ($pack,$name)=split(/\&/,$short);
9678: if ($plain ne '') {
9679: $packagetab{$pack.'&'.$name.'&name'}=$name;
9680: $packagetab{$short}=$plain;
9681: }
1.11 www 9682: }
1.448 albertel 9683: close($config);
1.329 matthew 9684: }
9685:
9686: # ------------- set up temporary directory
9687: {
9688: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
9689:
1.11 www 9690: }
9691:
1.794 albertel 9692: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
9693: 'compress_threshold'=> 20_000,
9694: });
1.185 www 9695:
1.281 www 9696: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 9697: $dumpcount=0;
1.958 www 9698: $locknum=0;
1.22 www 9699:
1.163 harris41 9700: &logtouch();
1.672 albertel 9701: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 9702: $readit=1;
1.564 albertel 9703: {
9704: use integer;
9705: my $test=(2**32)+1;
1.568 albertel 9706: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 9707: &logthis(" Detected 64bit platform ($_64bit)");
9708: }
1.195 www 9709: }
1.1 albertel 9710: }
1.179 www 9711:
1.1 albertel 9712: 1;
1.191 harris41 9713: __END__
9714:
1.243 albertel 9715: =pod
9716:
1.191 harris41 9717: =head1 NAME
9718:
1.243 albertel 9719: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 9720:
9721: =head1 SYNOPSIS
9722:
1.243 albertel 9723: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 9724:
9725: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
9726:
1.243 albertel 9727: Common parameters:
9728:
9729: =over 4
9730:
9731: =item *
9732:
9733: $uname : an internal username (if $cname expecting a course Id specifically)
9734:
9735: =item *
9736:
9737: $udom : a domain (if $cdom expecting a course's domain specifically)
9738:
9739: =item *
9740:
9741: $symb : a resource instance identifier
9742:
9743: =item *
9744:
9745: $namespace : the name of a .db file that contains the data needed or
9746: being set.
9747:
9748: =back
9749:
1.394 bowersj2 9750: =head1 OVERVIEW
1.191 harris41 9751:
1.394 bowersj2 9752: lonnet provides subroutines which interact with the
9753: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
9754: about classes, users, and resources.
1.243 albertel 9755:
9756: For many of these objects you can also use this to store data about
9757: them or modify them in various ways.
1.191 harris41 9758:
1.394 bowersj2 9759: =head2 Symbs
1.191 harris41 9760:
1.394 bowersj2 9761: To identify a specific instance of a resource, LON-CAPA uses symbols
9762: or "symbs"X<symb>. These identifiers are built from the URL of the
9763: map, the resource number of the resource in the map, and the URL of
9764: the resource itself. The latter is somewhat redundant, but might help
9765: if maps change.
9766:
9767: An example is
9768:
9769: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
9770:
9771: The respective map entry is
9772:
9773: <resource id="19" src="/res/msu/korte/tests/part12.problem"
9774: title="Problem 2">
9775: </resource>
9776:
9777: Symbs are used by the random number generator, as well as to store and
9778: restore data specific to a certain instance of for example a problem.
9779:
9780: =head2 Storing And Retrieving Data
9781:
9782: X<store()>X<cstore()>X<restore()>Three of the most important functions
9783: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
9784: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
9785: is is the non-critical message twin of cstore. These functions are for
9786: handlers to store a perl hash to a user's permanent data space in an
9787: easy manner, and to retrieve it again on another call. It is expected
9788: that a handler would use this once at the beginning to retrieve data,
9789: and then again once at the end to send only the new data back.
9790:
9791: The data is stored in the user's data directory on the user's
9792: homeserver under the ID of the course.
9793:
9794: The hash that is returned by restore will have all of the previous
9795: value for all of the elements of the hash.
9796:
9797: Example:
9798:
9799: #creating a hash
9800: my %hash;
9801: $hash{'foo'}='bar';
9802:
9803: #storing it
9804: &Apache::lonnet::cstore(\%hash);
9805:
9806: #changing a value
9807: $hash{'foo'}='notbar';
9808:
9809: #adding a new value
9810: $hash{'bar'}='foo';
9811: &Apache::lonnet::cstore(\%hash);
9812:
9813: #retrieving the hash
9814: my %history=&Apache::lonnet::restore();
9815:
9816: #print the hash
9817: foreach my $key (sort(keys(%history))) {
9818: print("\%history{$key} = $history{$key}");
9819: }
9820:
9821: Will print out:
1.191 harris41 9822:
1.394 bowersj2 9823: %history{1:foo} = bar
9824: %history{1:keys} = foo:timestamp
9825: %history{1:timestamp} = 990455579
9826: %history{2:bar} = foo
9827: %history{2:foo} = notbar
9828: %history{2:keys} = foo:bar:timestamp
9829: %history{2:timestamp} = 990455580
9830: %history{bar} = foo
9831: %history{foo} = notbar
9832: %history{timestamp} = 990455580
9833: %history{version} = 2
9834:
9835: Note that the special hash entries C<keys>, C<version> and
9836: C<timestamp> were added to the hash. C<version> will be equal to the
9837: total number of versions of the data that have been stored. The
9838: C<timestamp> attribute will be the UNIX time the hash was
9839: stored. C<keys> is available in every historical section to list which
9840: keys were added or changed at a specific historical revision of a
9841: hash.
9842:
9843: B<Warning>: do not store the hash that restore returns directly. This
9844: will cause a mess since it will restore the historical keys as if the
9845: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 9846:
1.394 bowersj2 9847: Calling convention:
1.191 harris41 9848:
1.394 bowersj2 9849: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
9850: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 9851:
1.394 bowersj2 9852: For more detailed information, see lonnet specific documentation.
1.191 harris41 9853:
1.394 bowersj2 9854: =head1 RETURN MESSAGES
1.191 harris41 9855:
1.394 bowersj2 9856: =over 4
1.191 harris41 9857:
1.394 bowersj2 9858: =item * B<con_lost>: unable to contact remote host
1.191 harris41 9859:
1.394 bowersj2 9860: =item * B<con_delayed>: unable to contact remote host, message will be delivered
9861: when the connection is brought back up
1.191 harris41 9862:
1.394 bowersj2 9863: =item * B<con_failed>: unable to contact remote host and unable to save message
9864: for later delivery
1.191 harris41 9865:
1.967 bisitz 9866: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 9867:
1.394 bowersj2 9868: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 9869: that was requested
1.191 harris41 9870:
1.243 albertel 9871: =back
1.191 harris41 9872:
1.243 albertel 9873: =head1 PUBLIC SUBROUTINES
1.191 harris41 9874:
1.243 albertel 9875: =head2 Session Environment Functions
1.191 harris41 9876:
1.243 albertel 9877: =over 4
1.191 harris41 9878:
1.394 bowersj2 9879: =item *
9880: X<appenv()>
1.949 raeburn 9881: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 9882: the user envirnoment file, and will be restored for each access this
1.620 albertel 9883: user makes during this session, also modifies the %env for the current
1.949 raeburn 9884: process. Optional rolesarrayref - if defined contains a reference to an array
9885: of roles which are exempt from the restriction on modifying user.role entries
9886: in the user's environment.db and in %env.
1.191 harris41 9887:
9888: =item *
1.394 bowersj2 9889: X<delenv()>
1.987 raeburn 9890: B<delenv($delthis,$regexp)>: removes all items from the session
9891: environment file that begin with $delthis. If the
9892: optional second arg - $regexp - is true, $delthis is treated as a
9893: regular expression, otherwise \Q$delthis\E is used.
9894: The values are also deleted from the current processes %env.
1.191 harris41 9895:
1.795 albertel 9896: =item * get_env_multiple($name)
9897:
9898: gets $name from the %env hash, it seemlessly handles the cases where multiple
9899: values may be defined and end up as an array ref.
9900:
9901: returns an array of values
9902:
1.243 albertel 9903: =back
9904:
9905: =head2 User Information
1.191 harris41 9906:
1.243 albertel 9907: =over 4
1.191 harris41 9908:
9909: =item *
1.394 bowersj2 9910: X<queryauthenticate()>
9911: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 9912: authentication scheme
9913:
9914: =item *
1.394 bowersj2 9915: X<authenticate()>
9916: B<authenticate($uname,$upass,$udom)>: try to
9917: authenticate user from domain's lib servers (first use the current
9918: one). C<$upass> should be the users password.
1.191 harris41 9919:
9920: =item *
1.394 bowersj2 9921: X<homeserver()>
9922: B<homeserver($uname,$udom)>: find the server which has
9923: the user's directory and files (there must be only one), this caches
9924: the answer, and also caches if there is a borken connection.
1.191 harris41 9925:
9926: =item *
1.394 bowersj2 9927: X<idget()>
9928: B<idget($udom,@ids)>: find the usernames behind a list of IDs
9929: (IDs are a unique resource in a domain, there must be only 1 ID per
9930: username, and only 1 username per ID in a specific domain) (returns
9931: hash: id=>name,id=>name)
1.191 harris41 9932:
9933: =item *
1.394 bowersj2 9934: X<idrget()>
9935: B<idrget($udom,@unames)>: find the IDs behind a list of
9936: usernames (returns hash: name=>id,name=>id)
1.191 harris41 9937:
9938: =item *
1.394 bowersj2 9939: X<idput()>
9940: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 9941:
9942: =item *
1.394 bowersj2 9943: X<rolesinit()>
9944: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 9945:
9946: =item *
1.551 albertel 9947: X<getsection()>
9948: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 9949: course $cname, return section name/number or '' for "not in course"
9950: and '-1' for "no section"
9951:
9952: =item *
1.394 bowersj2 9953: X<userenvironment()>
9954: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 9955: passed in @what from the requested user's environment, returns a hash
9956:
1.858 raeburn 9957: =item *
9958: X<userlog_query()>
1.859 albertel 9959: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
9960: activity.log file. %filters defines filters applied when parsing the
9961: log file. These can be start or end timestamps, or the type of action
9962: - log to look for Login or Logout events, check for Checkin or
9963: Checkout, role for role selection. The response is in the form
9964: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
9965: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 9966:
1.243 albertel 9967: =back
9968:
9969: =head2 User Roles
9970:
9971: =over 4
9972:
9973: =item *
9974:
1.810 raeburn 9975: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 9976: F: full access
9977: U,I,K: authentication modes (cxx only)
9978: '': forbidden
9979: 1: user needs to choose course
9980: 2: browse allowed
1.766 albertel 9981: A: passphrase authentication needed
1.243 albertel 9982:
9983: =item *
9984:
9985: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
9986: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
9987: and course level
9988:
9989: =item *
9990:
1.988 raeburn 9991: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
9992: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 9993: $type is Course (default) or Community.
1.988 raeburn 9994: If $forcedefault evaluates to true, text returned will be default
9995: text for $type. Otherwise, if this is a course, the text returned
9996: will be a custom name for the role (if defined in the course's
9997: environment). If no custom name is defined the default is returned.
9998:
1.832 raeburn 9999: =item *
10000:
1.935 raeburn 10001: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 10002: All arguments are optional. Returns a hash of a roles, either for
10003: co-author/assistant author roles for a user's Construction Space
1.906 albertel 10004: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 10005: In the hash, keys are set to colon-separated $uname,$udom,$role, and
10006: (optionally) if $withsec is true, a fourth colon-separated item - $section.
10007: For each key, value is set to colon-separated start and end times for
10008: the role. If no username and domain are specified, will default to
1.934 raeburn 10009: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 10010: of role statuses (active, future or previous), roles
10011: (e.g., cc,in, st etc.) and domains of the roles which can be used
10012: to restrict the list of roles reported. If no array ref is
10013: provided for types, will default to return only active roles.
1.834 albertel 10014:
1.243 albertel 10015: =back
10016:
10017: =head2 User Modification
10018:
10019: =over 4
10020:
10021: =item *
10022:
1.957 raeburn 10023: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 10024: user for the level given by URL. Optional start and end dates (leave empty
10025: string or zero for "no date")
1.191 harris41 10026:
10027: =item *
10028:
1.243 albertel 10029: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
10030: change a users, password, possible return values are: ok,
10031: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
10032: refused
1.191 harris41 10033:
10034: =item *
10035:
1.243 albertel 10036: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 10037:
10038: =item *
10039:
1.963 raeburn 10040: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,
10041: $forceid,$desiredhome,$email,$inststatus) :
1.243 albertel 10042: modify user
1.191 harris41 10043:
10044: =item *
10045:
1.286 matthew 10046: modifystudent
10047:
1.957 raeburn 10048: modify a student's enrollment and identification information.
1.286 matthew 10049: The course id is resolved based on the current users environment.
10050: This means the envoking user must be a course coordinator or otherwise
10051: associated with a course.
10052:
1.297 matthew 10053: This call is essentially a wrapper for lonnet::modifyuser and
10054: lonnet::modify_student_enrollment
1.286 matthew 10055:
10056: Inputs:
10057:
10058: =over 4
10059:
1.957 raeburn 10060: =item B<$udom> Student's loncapa domain
1.286 matthew 10061:
1.957 raeburn 10062: =item B<$uname> Student's loncapa login name
1.286 matthew 10063:
1.964 bisitz 10064: =item B<$uid> Student/Employee ID
1.286 matthew 10065:
1.957 raeburn 10066: =item B<$umode> Student's authentication mode
1.286 matthew 10067:
1.957 raeburn 10068: =item B<$upass> Student's password
1.286 matthew 10069:
1.957 raeburn 10070: =item B<$first> Student's first name
1.286 matthew 10071:
1.957 raeburn 10072: =item B<$middle> Student's middle name
1.286 matthew 10073:
1.957 raeburn 10074: =item B<$last> Student's last name
1.286 matthew 10075:
1.957 raeburn 10076: =item B<$gene> Student's generation
1.286 matthew 10077:
1.957 raeburn 10078: =item B<$usec> Student's section in course
1.286 matthew 10079:
10080: =item B<$end> Unix time of the roles expiration
10081:
10082: =item B<$start> Unix time of the roles start date
10083:
10084: =item B<$forceid> If defined, allow $uid to be changed
10085:
10086: =item B<$desiredhome> server to use as home server for student
10087:
1.957 raeburn 10088: =item B<$email> Student's permanent e-mail address
10089:
10090: =item B<$type> Type of enrollment (auto or manual)
10091:
1.963 raeburn 10092: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
10093:
10094: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 10095:
1.963 raeburn 10096: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 10097:
1.963 raeburn 10098: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 10099:
1.963 raeburn 10100: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 10101:
1.286 matthew 10102: =back
1.297 matthew 10103:
10104: =item *
10105:
10106: modify_student_enrollment
10107:
10108: Change a students enrollment status in a class. The environment variable
10109: 'role.request.course' must be defined for this function to proceed.
10110:
10111: Inputs:
10112:
10113: =over 4
10114:
10115: =item $udom, students domain
10116:
10117: =item $uname, students name
10118:
10119: =item $uid, students user id
10120:
10121: =item $first, students first name
10122:
10123: =item $middle
10124:
10125: =item $last
10126:
10127: =item $gene
10128:
10129: =item $usec
10130:
10131: =item $end
10132:
10133: =item $start
10134:
1.957 raeburn 10135: =item $type
10136:
10137: =item $locktype
10138:
10139: =item $cid
10140:
10141: =item $selfenroll
10142:
10143: =item $context
10144:
1.297 matthew 10145: =back
10146:
1.191 harris41 10147:
10148: =item *
10149:
1.243 albertel 10150: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
10151: custom role; give a custom role to a user for the level given by URL. Specify
10152: name and domain of role author, and role name
1.191 harris41 10153:
10154: =item *
10155:
1.243 albertel 10156: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 10157:
10158: =item *
10159:
1.243 albertel 10160: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
10161:
10162: =back
10163:
10164: =head2 Course Infomation
10165:
10166: =over 4
1.191 harris41 10167:
10168: =item *
10169:
1.631 albertel 10170: coursedescription($courseid) : returns a hash of information about the
10171: specified course id, including all environment settings for the
10172: course, the description of the course will be in the hash under the
10173: key 'description'
1.191 harris41 10174:
10175: =item *
10176:
1.624 albertel 10177: resdata($name,$domain,$type,@which) : request for current parameter
10178: setting for a specific $type, where $type is either 'course' or 'user',
10179: @what should be a list of parameters to ask about. This routine caches
10180: answers for 5 minutes.
1.243 albertel 10181:
1.877 foxr 10182: =item *
10183:
10184: get_courseresdata($courseid, $domain) : dump the entire course resource
10185: data base, returning a hash that is keyed by the resource name and has
10186: values that are the resource value. I believe that the timestamps and
10187: versions are also returned.
10188:
10189:
1.243 albertel 10190: =back
10191:
10192: =head2 Course Modification
10193:
10194: =over 4
1.191 harris41 10195:
10196: =item *
10197:
1.243 albertel 10198: writecoursepref($courseid,%prefs) : write preferences (environment
10199: database) for a course
1.191 harris41 10200:
10201: =item *
10202:
1.1011 raeburn 10203: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
10204:
10205: =item *
10206:
10207: generate_coursenum($udom) : get a unique (unused) course number in domain $udom
1.243 albertel 10208:
10209: =back
10210:
10211: =head2 Resource Subroutines
10212:
10213: =over 4
1.191 harris41 10214:
10215: =item *
10216:
1.243 albertel 10217: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 10218:
10219: =item *
10220:
1.243 albertel 10221: repcopy($filename) : subscribes to the requested file, and attempts to
10222: replicate from the owning library server, Might return
1.607 raeburn 10223: 'unavailable', 'not_found', 'forbidden', 'ok', or
10224: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 10225: resource. Expects the local filesystem pathname
10226: (/home/httpd/html/res/....)
10227:
10228: =back
10229:
10230: =head2 Resource Information
10231:
10232: =over 4
1.191 harris41 10233:
10234: =item *
10235:
1.243 albertel 10236: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
10237: a vairety of different possible values, $varname should be a request
10238: string, and the other parameters can be used to specify who and what
10239: one is asking about.
10240:
10241: Possible values for $varname are environment.lastname (or other item
10242: from the envirnment hash), user.name (or someother aspect about the
10243: user), resource.0.maxtries (or some other part and parameter of a
10244: resource)
1.204 albertel 10245:
10246: =item *
10247:
1.243 albertel 10248: directcondval($number) : get current value of a condition; reads from a state
10249: string
1.204 albertel 10250:
10251: =item *
10252:
1.243 albertel 10253: condval($condidx) : value of condition index based on state
1.204 albertel 10254:
10255: =item *
10256:
1.243 albertel 10257: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
10258: resource's metadata, $what should be either a specific key, or either
10259: 'keys' (to get a list of possible keys) or 'packages' to get a list of
10260: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
10261:
10262: this function automatically caches all requests
1.191 harris41 10263:
10264: =item *
10265:
1.243 albertel 10266: metadata_query($query,$custom,$customshow) : make a metadata query against the
10267: network of library servers; returns file handle of where SQL and regex results
10268: will be stored for query
1.191 harris41 10269:
10270: =item *
10271:
1.243 albertel 10272: symbread($filename) : return symbolic list entry (filename argument optional);
10273: returns the data handle
1.191 harris41 10274:
10275: =item *
10276:
1.243 albertel 10277: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 10278: a possible symb for the URL in $thisfn, and if is an encryypted
10279: resource that the user accessed using /enc/ returns a 1 on success, 0
10280: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 10281: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 10282:
1.191 harris41 10283:
10284: =item *
10285:
1.243 albertel 10286: symbclean($symb) : removes versions numbers from a symb, returns the
10287: cleaned symb
1.191 harris41 10288:
10289: =item *
10290:
1.243 albertel 10291: is_on_map($uri) : checks if the $uri is somewhere on the current
10292: course map, user must be in a course for it to work.
1.191 harris41 10293:
10294: =item *
10295:
1.243 albertel 10296: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 10297:
10298: =item *
10299:
1.243 albertel 10300: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
10301: a random seed, all arguments are optional, if they aren't sent it uses the
10302: environment to derive them. Note: if symb isn't sent and it can't get one
10303: from &symbread it will use the current time as its return value
1.191 harris41 10304:
10305: =item *
10306:
1.243 albertel 10307: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
10308: unfakeable, receipt
1.191 harris41 10309:
10310: =item *
10311:
1.620 albertel 10312: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 10313:
10314: =item *
10315:
1.243 albertel 10316: countacc($url) : count the number of accesses to a given URL
1.191 harris41 10317:
10318: =item *
10319:
1.243 albertel 10320: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 10321:
10322: =item *
10323:
1.243 albertel 10324: checkin($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 $tcrsid)
1.191 harris41 10325:
10326: =item *
10327:
1.243 albertel 10328: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 10329:
10330: =item *
10331:
1.243 albertel 10332: devalidate($symb) : devalidate temporary spreadsheet calculations,
10333: forcing spreadsheet to reevaluate the resource scores next time.
10334:
10335: =back
10336:
10337: =head2 Storing/Retreiving Data
10338:
10339: =over 4
1.191 harris41 10340:
10341: =item *
10342:
1.243 albertel 10343: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
10344: for this url; hashref needs to be given and should be a \%hashname; the
10345: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 10346: be derived from the env
1.191 harris41 10347:
10348: =item *
10349:
1.243 albertel 10350: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
10351: uses critical subroutine
1.191 harris41 10352:
10353: =item *
10354:
1.243 albertel 10355: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
10356: all args are optional
1.191 harris41 10357:
10358: =item *
10359:
1.717 albertel 10360: dumpstore($namespace,$udom,$uname,$regexp,$range) :
10361: dumps the complete (or key matching regexp) namespace into a hash
10362: ($udom, $uname, $regexp, $range are optional) for a namespace that is
10363: normally &store()ed into
10364:
10365: $range should be either an integer '100' (give me the first 100
10366: matching records)
10367: or be two integers sperated by a - with no spaces
10368: '30-50' (give me the 30th through the 50th matching
10369: records)
10370:
10371:
10372: =item *
10373:
10374: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
10375: replaces a &store() version of data with a replacement set of data
10376: for a particular resource in a namespace passed in the $storehash hash
10377: reference
10378:
10379: =item *
10380:
1.243 albertel 10381: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
10382: works very similar to store/cstore, but all data is stored in a
10383: temporary location and can be reset using tmpreset, $storehash should
10384: be a hash reference, returns nothing on success
1.191 harris41 10385:
10386: =item *
10387:
1.243 albertel 10388: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
10389: similar to restore, but all data is stored in a temporary location and
10390: can be reset using tmpreset. Returns a hash of values on success,
10391: error string otherwise.
1.191 harris41 10392:
10393: =item *
10394:
1.243 albertel 10395: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
10396: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 10397:
10398: =item *
10399:
1.243 albertel 10400: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10401: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 10402:
10403: =item *
10404:
1.243 albertel 10405: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
10406: namesp ($udom and $uname are optional)
1.191 harris41 10407:
10408: =item *
10409:
1.702 albertel 10410: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 10411: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 10412: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 10413:
1.702 albertel 10414: $range should be either an integer '100' (give me the first 100
10415: matching records)
10416: or be two integers sperated by a - with no spaces
10417: '30-50' (give me the 30th through the 50th matching
10418: records)
1.449 matthew 10419: =item *
10420:
10421: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
10422: $store can be a scalar, an array reference, or if the amount to be
10423: incremented is > 1, a hash reference.
10424:
10425: ($udom and $uname are optional)
1.191 harris41 10426:
10427: =item *
10428:
1.243 albertel 10429: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
10430: ($udom and $uname are optional)
1.191 harris41 10431:
10432: =item *
10433:
1.243 albertel 10434: cput($namespace,$storehash,$udom,$uname) : critical put
10435: ($udom and $uname are optional)
1.191 harris41 10436:
10437: =item *
10438:
1.748 albertel 10439: newput($namespace,$storehash,$udom,$uname) :
10440:
10441: Attempts to store the items in the $storehash, but only if they don't
10442: currently exist, if this succeeds you can be certain that you have
10443: successfully created a new key value pair in the $namespace db.
10444:
10445:
10446: Args:
10447: $namespace: name of database to store values to
10448: $storehash: hashref to store to the db
10449: $udom: (optional) domain of user containing the db
10450: $uname: (optional) name of user caontaining the db
10451:
10452: Returns:
10453: 'ok' -> succeeded in storing all keys of $storehash
10454: 'key_exists: <key>' -> failed to anything out of $storehash, as at
10455: least <key> already existed in the db (other
10456: requested keys may also already exist)
1.967 bisitz 10457: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 10458: 'con_lost' -> unable to contact request server
10459: 'refused' -> action was not allowed by remote machine
10460:
10461:
10462: =item *
10463:
1.243 albertel 10464: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10465: reference filled in from namesp (encrypts the return communication)
10466: ($udom and $uname are optional)
1.191 harris41 10467:
10468: =item *
10469:
1.243 albertel 10470: log($udom,$name,$home,$message) : write to permanent log for user; use
10471: critical subroutine
10472:
1.806 raeburn 10473: =item *
10474:
1.860 raeburn 10475: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
10476: array reference filled in from namespace found in domain level on either
10477: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 10478:
10479: =item *
10480:
1.860 raeburn 10481: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
10482: domain level either on specified domain server ($uhome) or primary domain
10483: server ($udom and $uhome are optional)
1.806 raeburn 10484:
1.943 raeburn 10485: =item *
10486:
10487: get_domain_defaults($target_domain) : returns hash with defaults for
10488: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
10489: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
10490: or localauth), initial password or a kerberos realm, language (e.g., en-us).
10491: Values are retrieved from cache (if current), or from domain's configuration.db
10492: (if available), or lastly from values in lonTabs/dns_domain,tab,
10493: or lonTabs/domain.tab.
10494:
10495: %domdefaults = &get_auth_defaults($target_domain);
10496:
1.243 albertel 10497: =back
10498:
10499: =head2 Network Status Functions
10500:
10501: =over 4
1.191 harris41 10502:
10503: =item *
10504:
10505: dirlist($uri) : return directory list based on URI
10506:
10507: =item *
10508:
1.243 albertel 10509: spareserver() : find server with least workload from spare.tab
10510:
1.986 foxr 10511:
10512: =item *
10513:
10514: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
10515: if there is no corresponding loncapa host.
10516:
1.243 albertel 10517: =back
10518:
1.986 foxr 10519:
1.243 albertel 10520: =head2 Apache Request
10521:
10522: =over 4
1.191 harris41 10523:
10524: =item *
10525:
1.243 albertel 10526: ssi($url,%hash) : server side include, does a complete request cycle on url to
10527: localhost, posts hash
10528:
10529: =back
10530:
10531: =head2 Data to String to Data
10532:
10533: =over 4
1.191 harris41 10534:
10535: =item *
10536:
1.243 albertel 10537: hash2str(%hash) : convert a hash into a string complete with escaping and '='
10538: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 10539:
10540: =item *
10541:
1.243 albertel 10542: hashref2str($hashref) : convert a hashref into a string complete with
10543: escaping and '=' and '&' separators, supports elements that are
10544: arrayrefs and hashrefs
1.191 harris41 10545:
10546: =item *
10547:
1.243 albertel 10548: arrayref2str($arrayref) : convert an arrayref into a string complete
10549: with escaping and '&' separators, supports elements that are arrayrefs
10550: and hashrefs
1.191 harris41 10551:
10552: =item *
10553:
1.243 albertel 10554: str2hash($string) : convert string to hash using unescaping and
10555: splitting on '=' and '&', supports elements that are arrayrefs and
10556: hashrefs
1.191 harris41 10557:
10558: =item *
10559:
1.243 albertel 10560: str2array($string) : convert string to hash using unescaping and
10561: splitting on '&', supports elements that are arrayrefs and hashrefs
10562:
10563: =back
10564:
10565: =head2 Logging Routines
10566:
10567: =over 4
10568:
10569: These routines allow one to make log messages in the lonnet.log and
10570: lonnet.perm logfiles.
1.191 harris41 10571:
10572: =item *
10573:
1.243 albertel 10574: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 10575:
10576: =item *
10577:
1.243 albertel 10578: logthis() : append message to the normal lonnet.log file, it gets
10579: preiodically rolled over and deleted.
1.191 harris41 10580:
10581: =item *
10582:
1.243 albertel 10583: logperm() : append a permanent message to lonnet.perm.log, this log
10584: file never gets deleted by any automated portion of the system, only
10585: messages of critical importance should go in here.
10586:
10587: =back
10588:
10589: =head2 General File Helper Routines
10590:
10591: =over 4
1.191 harris41 10592:
10593: =item *
10594:
1.481 raeburn 10595: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
10596: (a) files in /uploaded
10597: (i) If a local copy of the file exists -
10598: compares modification date of local copy with last-modified date for
10599: definitive version stored on home server for course. If local copy is
10600: stale, requests a new version from the home server and stores it.
10601: If the original has been removed from the home server, then local copy
10602: is unlinked.
10603: (ii) If local copy does not exist -
10604: requests the file from the home server and stores it.
10605:
10606: If $caller is 'uploadrep':
10607: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
10608: for request for files originally uploaded via DOCS.
10609: - returns 'ok' if fresh local copy now available, -1 otherwise.
10610:
10611: Otherwise:
10612: This indicates a call from the content generation phase of the request.
10613: - returns the entire contents of the file or -1.
10614:
10615: (b) files in /res
10616: - returns the entire contents of a file or -1;
10617: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 10618:
1.712 albertel 10619:
10620: =item *
10621:
10622: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
10623: reference
10624:
10625: returns either a stat() list of data about the file or an empty list
10626: if the file doesn't exist or couldn't find out about it (connection
10627: problems or user unknown)
10628:
1.191 harris41 10629: =item *
10630:
1.243 albertel 10631: filelocation($dir,$file) : returns file system location of a file
10632: based on URI; meant to be "fairly clean" absolute reference, $dir is a
10633: directory that relative $file lookups are to looked in ($dir of /a/dir
10634: and a file of ../bob will become /a/bob)
1.191 harris41 10635:
10636: =item *
10637:
10638: hreflocation($dir,$file) : returns file system location or a URL; same as
10639: filelocation except for hrefs
10640:
10641: =item *
10642:
10643: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
10644:
1.243 albertel 10645: =back
10646:
1.608 albertel 10647: =head2 Usererfile file routines (/uploaded*)
10648:
10649: =over 4
10650:
10651: =item *
10652:
10653: userfileupload(): main rotine for putting a file in a user or course's
10654: filespace, arguments are,
10655:
1.620 albertel 10656: formname - required - this is the name of the element in $env where the
1.608 albertel 10657: filename, and the contents of the file to create/modifed exist
1.620 albertel 10658: the filename is in $env{'form.'.$formname.'.filename'} and the
10659: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 10660: coursedoc - if true, store the file in the course of the active role
10661: of the current user
10662: subdir - required - subdirectory to put the file in under ../userfiles/
10663: if undefined, it will be placed in "unknown"
10664:
10665: (This routine calls clean_filename() to remove any dangerous
10666: characters from the filename, and then calls finuserfileupload() to
10667: complete the transaction)
10668:
10669: returns either the url of the uploaded file (/uploaded/....) if successful
10670: and /adm/notfound.html if unsuccessful
10671:
10672: =item *
10673:
10674: clean_filename(): routine for cleaing a filename up for storage in
10675: userfile space, argument is:
10676:
10677: filename - proposed filename
10678:
10679: returns: the new clean filename
10680:
10681: =item *
10682:
10683: finishuserfileupload(): routine that creaes and sends the file to
10684: userspace, probably shouldn't be called directly
10685:
10686: docuname: username or courseid of destination for the file
10687: docudom: domain of user/course of destination for the file
10688: formname: same as for userfileupload()
10689: fname: filename (inculding subdirectories) for the file
10690:
10691: returns either the url of the uploaded file (/uploaded/....) if successful
10692: and /adm/notfound.html if unsuccessful
10693:
10694: =item *
10695:
10696: renameuserfile(): renames an existing userfile to a new name
10697:
10698: Args:
10699: docuname: username or courseid of destination for the file
10700: docudom: domain of user/course of destination for the file
10701: old: current file name (including any subdirs under userfiles)
10702: new: desired file name (including any subdirs under userfiles)
10703:
10704: =item *
10705:
10706: mkdiruserfile(): creates a directory is a userfiles dir
10707:
10708: Args:
10709: docuname: username or courseid of destination for the file
10710: docudom: domain of user/course of destination for the file
10711: dir: dir to create (including any subdirs under userfiles)
10712:
10713: =item *
10714:
10715: removeuserfile(): removes a file that exists in userfiles
10716:
10717: Args:
10718: docuname: username or courseid of destination for the file
10719: docudom: domain of user/course of destination for the file
10720: fname: filname to delete (including any subdirs under userfiles)
10721:
10722: =item *
10723:
10724: removeuploadedurl(): convience function for removeuserfile()
10725:
10726: Args:
10727: url: a full /uploaded/... url to delete
10728:
1.747 albertel 10729: =item *
10730:
10731: get_portfile_permissions():
10732: Args:
10733: domain: domain of user or course contain the portfolio files
10734: user: name of user or num of course contain the portfolio files
10735: Returns:
10736: hashref of a dump of the proper file_permissions.db
10737:
10738:
10739: =item *
10740:
10741: get_access_controls():
10742:
10743: Args:
10744: current_permissions: the hash ref returned from get_portfile_permissions()
10745: group: (optional) the group you want the files associated with
10746: file: (optional) the file you want access info on
10747:
10748: Returns:
1.749 raeburn 10749: a hash (keys are file names) of hashes containing
10750: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
10751: values are XML containing access control settings (see below)
1.747 albertel 10752:
10753: Internal notes:
10754:
1.749 raeburn 10755: access controls are stored in file_permissions.db as key=value pairs.
10756: key -> path to file/file_name\0uniqueID:scope_end_start
10757: where scope -> public,guest,course,group,domains or users.
10758: end -> UNIX time for end of access (0 -> no end date)
10759: start -> UNIX time for start of access
10760:
10761: value -> XML description of access control
10762: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
10763: <start></start>
10764: <end></end>
10765:
10766: <password></password> for scope type = guest
10767:
10768: <domain></domain> for scope type = course or group
10769: <number></number>
10770: <roles id="">
10771: <role></role>
10772: <access></access>
10773: <section></section>
10774: <group></group>
10775: </roles>
10776:
10777: <dom></dom> for scope type = domains
10778:
10779: <users> for scope type = users
10780: <user>
10781: <uname></uname>
10782: <udom></udom>
10783: </user>
10784: </users>
10785: </scope>
10786:
10787: Access data is also aggregated for each file in an additional key=value pair:
10788: key -> path to file/file_name\0accesscontrol
10789: value -> reference to hash
10790: hash contains key = value pairs
10791: where key = uniqueID:scope_end_start
10792: value = UNIX time record was last updated
10793:
10794: Used to improve speed of look-ups of access controls for each file.
10795:
10796: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
10797:
10798: modify_access_controls():
10799:
10800: Modifies access controls for a portfolio file
10801: Args
10802: 1. file name
10803: 2. reference to hash of required changes,
10804: 3. domain
10805: 4. username
10806: where domain,username are the domain of the portfolio owner
10807: (either a user or a course)
10808:
10809: Returns:
10810: 1. result of additions or updates ('ok' or 'error', with error message).
10811: 2. result of deletions ('ok' or 'error', with error message).
10812: 3. reference to hash of any new or updated access controls.
10813: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
10814: key = integer (inbound ID)
10815: value = uniqueID
1.747 albertel 10816:
1.608 albertel 10817: =back
10818:
1.243 albertel 10819: =head2 HTTP Helper Routines
10820:
10821: =over 4
10822:
1.191 harris41 10823: =item *
10824:
10825: escape() : unpack non-word characters into CGI-compatible hex codes
10826:
10827: =item *
10828:
10829: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
10830:
1.243 albertel 10831: =back
10832:
10833: =head1 PRIVATE SUBROUTINES
10834:
10835: =head2 Underlying communication routines (Shouldn't call)
10836:
10837: =over 4
10838:
10839: =item *
10840:
10841: subreply() : tries to pass a message to lonc, returns con_lost if incapable
10842:
10843: =item *
10844:
10845: reply() : uses subreply to send a message to remote machine, logs all failures
10846:
10847: =item *
10848:
10849: critical() : passes a critical message to another server; if cannot
10850: get through then place message in connection buffer directory and
10851: returns con_delayed, if incapable of saving message, returns
10852: con_failed
10853:
10854: =item *
10855:
10856: reconlonc() : tries to reconnect lonc client processes.
10857:
10858: =back
10859:
10860: =head2 Resource Access Logging
10861:
10862: =over 4
10863:
10864: =item *
10865:
10866: flushcourselogs() : flush (save) buffer logs and access logs
10867:
10868: =item *
10869:
10870: courselog($what) : save message for course in hash
10871:
10872: =item *
10873:
10874: courseacclog($what) : save message for course using &courselog(). Perform
10875: special processing for specific resource types (problems, exams, quizzes, etc).
10876:
1.191 harris41 10877: =item *
10878:
10879: goodbye() : flush course logs and log shutting down; it is called in srm.conf
10880: as a PerlChildExitHandler
1.243 albertel 10881:
10882: =back
10883:
10884: =head2 Other
10885:
10886: =over 4
10887:
10888: =item *
10889:
10890: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 10891:
10892: =back
10893:
10894: =cut
1.877 foxr 10895:
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