Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1006
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1006 ! raeburn 4: # $Id: lonnet.pm,v 1.1005 2009/07/20 23:33:11 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;
1.807 albertel 95: use LONCAPA qw(:DEFAULT :match);
1.740 www 96: use LONCAPA::Configuration;
1.676 albertel 97:
1.195 www 98: my $readit;
1.550 foxr 99: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 100:
1.977 amueller 101: my $upload_photo_form = 0; #Variable to check when user upload a photo 0=not 1=true
102:
1.619 albertel 103: require Exporter;
104:
105: our @ISA = qw (Exporter);
106: our @EXPORT = qw(%env);
107:
1.449 matthew 108:
1.1 albertel 109: # --------------------------------------------------------------------- Logging
1.729 www 110: {
111: my $logid;
112: sub instructor_log {
1.957 raeburn 113: my ($hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
114: if (($cnum eq '') || ($cdom eq '')) {
115: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
116: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
117: }
1.729 www 118: $logid++;
1.957 raeburn 119: my $now = time();
120: my $id=$now.'00000'.$$.'00000'.$logid;
1.729 www 121: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 122: { $id => {
123: 'exe_uname' => $env{'user.name'},
124: 'exe_udom' => $env{'user.domain'},
1.957 raeburn 125: 'exe_time' => $now,
1.730 www 126: 'exe_ip' => $ENV{'REMOTE_ADDR'},
127: 'delflag' => $delflag,
128: 'logentry' => $storehash,
129: 'uname' => $uname,
130: 'udom' => $udom,
131: }
1.957 raeburn 132: },$cdom,$cnum);
1.729 www 133: }
134: }
1.1 albertel 135:
1.163 harris41 136: sub logtouch {
137: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 138: unless (-e "$execdir/logs/lonnet.log") {
139: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 140: close $fh;
141: }
142: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
143: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
144: }
145:
1.1 albertel 146: sub logthis {
147: my $message=shift;
148: my $execdir=$perlvar{'lonDaemons'};
149: my $now=time;
150: my $local=localtime($now);
1.448 albertel 151: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
1.986 foxr 152: my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
153: print $fh $logstring;
1.448 albertel 154: close($fh);
155: }
1.1 albertel 156: return 1;
157: }
158:
159: sub logperm {
160: my $message=shift;
161: my $execdir=$perlvar{'lonDaemons'};
162: my $now=time;
163: my $local=localtime($now);
1.448 albertel 164: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
165: print $fh "$now:$message:$local\n";
166: close($fh);
167: }
1.1 albertel 168: return 1;
169: }
170:
1.850 albertel 171: sub create_connection {
1.853 albertel 172: my ($hostname,$lonid) = @_;
1.851 albertel 173: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 174: Type => SOCK_STREAM,
175: Timeout => 10);
176: return 0 if (!$client);
1.890 albertel 177: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 178: my $result = <$client>;
179: chomp($result);
180: return 1 if ($result eq 'done');
181: return 0;
182: }
183:
1.983 raeburn 184: sub get_server_timezone {
185: my ($cnum,$cdom) = @_;
186: my $home=&homeserver($cnum,$cdom);
187: if ($home ne 'no_host') {
188: my $cachetime = 24*3600;
189: my ($timezone,$cached)=&is_cached_new('servertimezone',$home);
190: if (defined($cached)) {
191: return $timezone;
192: } else {
193: my $timezone = &reply('servertimezone',$home);
194: return &do_cache_new('servertimezone',$home,$timezone,$cachetime);
195: }
196: }
197: }
1.850 albertel 198:
1.993 raeburn 199: sub get_server_loncaparev {
200: my ($dom,$lonhost) = @_;
201: if (defined($lonhost)) {
202: if (!defined(&hostname($lonhost))) {
203: undef($lonhost);
204: }
205: }
206: if (!defined($lonhost)) {
207: if (defined(&domain($dom,'primary'))) {
208: $lonhost=&domain($dom,'primary');
209: if ($lonhost eq 'no_host') {
210: undef($lonhost);
211: }
212: }
213: }
214: if (defined($lonhost)) {
215: my $cachetime = 24*3600;
216: my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost);
217: if (defined($cached)) {
218: return $loncaparev;
219: } else {
220: my $loncaparev = &reply('serverloncaparev',$lonhost);
221: return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
222: }
223: }
224: }
225:
1.1 albertel 226: # -------------------------------------------------- Non-critical communication
227: sub subreply {
228: my ($cmd,$server)=@_;
1.838 albertel 229: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 230: #
231: # With loncnew process trimming, there's a timing hole between lonc server
232: # process exit and the master server picking up the listen on the AF_UNIX
233: # socket. In that time interval, a lock file will exist:
234:
235: my $lockfile=$peerfile.".lock";
236: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
237: sleep(1);
238: }
239: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 240: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 241: #
1.550 foxr 242: # We'll give the connection a few tries before abandoning it. If
243: # connection is not possible, we'll con_lost back to the client.
244: #
245: my $client;
246: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
247: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
248: Type => SOCK_STREAM,
249: Timeout => 10);
1.869 albertel 250: if ($client) {
1.550 foxr 251: last; # Connected!
1.850 albertel 252: } else {
1.853 albertel 253: &create_connection(&hostname($server),$server);
1.550 foxr 254: }
1.850 albertel 255: sleep(1); # Try again later if failed connection.
1.550 foxr 256: }
257: my $answer;
258: if ($client) {
1.704 albertel 259: print $client "sethost:$server:$cmd\n";
1.550 foxr 260: $answer=<$client>;
261: if (!$answer) { $answer="con_lost"; }
262: chomp($answer);
263: } else {
264: $answer = 'con_lost'; # Failed connection.
265: }
1.1 albertel 266: return $answer;
267: }
268:
269: sub reply {
270: my ($cmd,$server)=@_;
1.838 albertel 271: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 272: my $answer=subreply($cmd,$server);
1.65 www 273: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 274: &logthis("<font color=\"blue\">WARNING:".
1.12 www 275: " $cmd to $server returned $answer</font>");
276: }
1.1 albertel 277: return $answer;
278: }
279:
280: # ----------------------------------------------------------- Send USR1 to lonc
281:
282: sub reconlonc {
1.891 albertel 283: my ($lonid) = @_;
284: my $hostname = &hostname($lonid);
285: if ($lonid) {
286: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
287: if ($hostname && -e $peerfile) {
288: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
289: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
290: Type => SOCK_STREAM,
291: Timeout => 10);
292: if ($client) {
293: print $client ("reset_retries\n");
294: my $answer=<$client>;
295: #reset just this one.
296: }
297: }
298: return;
299: }
300:
1.836 www 301: &logthis("Trying to reconnect lonc");
1.1 albertel 302: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 303: if (open(my $fh,"<$loncfile")) {
1.1 albertel 304: my $loncpid=<$fh>;
305: chomp($loncpid);
306: if (kill 0 => $loncpid) {
307: &logthis("lonc at pid $loncpid responding, sending USR1");
308: kill USR1 => $loncpid;
309: sleep 1;
1.836 www 310: } else {
1.12 www 311: &logthis(
1.672 albertel 312: "<font color=\"blue\">WARNING:".
1.12 www 313: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 314: }
315: } else {
1.836 www 316: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 317: }
318: }
319:
320: # ------------------------------------------------------ Critical communication
1.12 www 321:
1.1 albertel 322: sub critical {
323: my ($cmd,$server)=@_;
1.838 albertel 324: unless (&hostname($server)) {
1.672 albertel 325: &logthis("<font color=\"blue\">WARNING:".
1.89 www 326: " Critical message to unknown server ($server)</font>");
327: return 'no_such_host';
328: }
1.1 albertel 329: my $answer=reply($cmd,$server);
330: if ($answer eq 'con_lost') {
331: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 332: my $answer=reply($cmd,$server);
1.1 albertel 333: if ($answer eq 'con_lost') {
334: my $now=time;
335: my $middlename=$cmd;
1.5 www 336: $middlename=substr($middlename,0,16);
1.1 albertel 337: $middlename=~s/\W//g;
338: my $dfilename=
1.305 www 339: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
340: $dumpcount++;
1.1 albertel 341: {
1.448 albertel 342: my $dfh;
343: if (open($dfh,">$dfilename")) {
344: print $dfh "$cmd\n";
345: close($dfh);
346: }
1.1 albertel 347: }
348: sleep 2;
349: my $wcmd='';
350: {
1.448 albertel 351: my $dfh;
352: if (open($dfh,"<$dfilename")) {
353: $wcmd=<$dfh>;
354: close($dfh);
355: }
1.1 albertel 356: }
357: chomp($wcmd);
1.7 www 358: if ($wcmd eq $cmd) {
1.672 albertel 359: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 360: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 361: &logperm("D:$server:$cmd");
362: return 'con_delayed';
363: } else {
1.672 albertel 364: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 365: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 366: &logperm("F:$server:$cmd");
367: return 'con_failed';
368: }
369: }
370: }
371: return $answer;
1.405 albertel 372: }
373:
1.755 albertel 374: # ------------------------------------------- check if return value is an error
375:
376: sub error {
377: my ($result) = @_;
1.756 albertel 378: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 379: if ($2 == 2) { return undef; }
380: return $1;
381: }
382: return undef;
383: }
384:
1.783 albertel 385: sub convert_and_load_session_env {
386: my ($lonidsdir,$handle)=@_;
387: my @profile;
388: {
1.917 albertel 389: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
390: if (!$opened) {
1.915 albertel 391: return 0;
392: }
1.783 albertel 393: flock($idf,LOCK_SH);
394: @profile=<$idf>;
395: close($idf);
396: }
397: my %temp_env;
398: foreach my $line (@profile) {
1.786 albertel 399: if ($line !~ m/=/) {
400: return 0;
401: }
1.783 albertel 402: chomp($line);
403: my ($envname,$envvalue)=split(/=/,$line,2);
404: $temp_env{&unescape($envname)} = &unescape($envvalue);
405: }
406: unlink("$lonidsdir/$handle.id");
407: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
408: 0640)) {
409: %disk_env = %temp_env;
410: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
411: untie(%disk_env);
412: }
1.786 albertel 413: return 1;
1.783 albertel 414: }
415:
1.374 www 416: # ------------------------------------------- Transfer profile into environment
1.780 albertel 417: my $env_loaded;
418: sub transfer_profile_to_env {
1.788 albertel 419: my ($lonidsdir,$handle,$force_transfer) = @_;
420: if (!$force_transfer && $env_loaded) { return; }
1.374 www 421:
1.720 albertel 422: if (!defined($lonidsdir)) {
423: $lonidsdir = $perlvar{'lonIDsDir'};
424: }
425: if (!defined($handle)) {
426: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
427: }
428:
1.786 albertel 429: my $convert;
430: {
1.917 albertel 431: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
432: if (!$opened) {
1.915 albertel 433: return;
434: }
1.786 albertel 435: flock($idf,LOCK_SH);
436: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
437: &GDBM_READER(),0640)) {
438: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
439: untie(%disk_env);
440: } else {
441: $convert = 1;
442: }
443: }
444: if ($convert) {
445: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
446: &logthis("Failed to load session, or convert session.");
447: }
1.374 www 448: }
1.783 albertel 449:
1.786 albertel 450: my %remove;
1.783 albertel 451: while ( my $envname = each(%env) ) {
1.433 matthew 452: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
453: if ($time < time-300) {
1.783 albertel 454: $remove{$key}++;
1.433 matthew 455: }
456: }
457: }
1.783 albertel 458:
1.619 albertel 459: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 460: $env_loaded=1;
1.783 albertel 461: foreach my $expired_key (keys(%remove)) {
1.433 matthew 462: &delenv($expired_key);
1.374 www 463: }
1.1 albertel 464: }
465:
1.916 albertel 466: # ---------------------------------------------------- Check for valid session
467: sub check_for_valid_session {
468: my ($r) = @_;
469: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
470: my $lonid=$cookies{'lonID'};
471: return undef if (!$lonid);
472:
473: my $handle=&LONCAPA::clean_handle($lonid->value);
474: my $lonidsdir=$r->dir_config('lonIDsDir');
475: return undef if (!-e "$lonidsdir/$handle.id");
476:
1.917 albertel 477: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
478: return undef if (!$opened);
1.916 albertel 479:
480: flock($idf,LOCK_SH);
481: my %disk_env;
482: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
483: &GDBM_READER(),0640)) {
484: return undef;
485: }
486:
487: if (!defined($disk_env{'user.name'})
488: || !defined($disk_env{'user.domain'})) {
489: return undef;
490: }
491: return $handle;
492: }
493:
1.830 albertel 494: sub timed_flock {
495: my ($file,$lock_type) = @_;
496: my $failed=0;
497: eval {
498: local $SIG{__DIE__}='DEFAULT';
499: local $SIG{ALRM}=sub {
500: $failed=1;
501: die("failed lock");
502: };
503: alarm(13);
504: flock($file,$lock_type);
505: alarm(0);
506: };
507: if ($failed) {
508: return undef;
509: } else {
510: return 1;
511: }
512: }
513:
1.5 www 514: # ---------------------------------------------------------- Append Environment
515:
516: sub appenv {
1.949 raeburn 517: my ($newenv,$roles) = @_;
518: if (ref($newenv) eq 'HASH') {
519: foreach my $key (keys(%{$newenv})) {
520: my $refused = 0;
521: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
522: $refused = 1;
523: if (ref($roles) eq 'ARRAY') {
524: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
525: if (grep(/^\Q$role\E$/,@{$roles})) {
526: $refused = 0;
527: }
528: }
529: }
530: if ($refused) {
531: &logthis("<font color=\"blue\">WARNING: ".
532: "Attempt to modify environment ".$key." to ".$newenv->{$key}
533: .'</font>');
534: delete($newenv->{$key});
535: } else {
536: $env{$key}=$newenv->{$key};
537: }
538: }
539: my $opened = open(my $env_file,'+<',$env{'user.environment'});
540: if ($opened
541: && &timed_flock($env_file,LOCK_EX)
542: &&
543: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
544: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
545: while (my ($key,$value) = each(%{$newenv})) {
546: $disk_env{$key} = $value;
547: }
548: untie(%disk_env);
1.35 www 549: }
1.191 harris41 550: }
1.56 www 551: return 'ok';
552: }
553: # ----------------------------------------------------- Delete from Environment
554:
555: sub delenv {
1.987 raeburn 556: my ($delthis,$regexp) = @_;
1.56 www 557: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 558: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 559: "Attempt to delete from environment ".$delthis);
560: return 'error';
561: }
1.917 albertel 562: my $opened = open(my $env_file,'+<',$env{'user.environment'});
563: if ($opened
1.915 albertel 564: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 565: &&
566: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
567: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 568: foreach my $key (keys(%disk_env)) {
1.987 raeburn 569: if ($regexp) {
570: if ($key=~/^$delthis/) {
571: delete($env{$key});
572: delete($disk_env{$key});
573: }
574: } else {
575: if ($key=~/^\Q$delthis\E/) {
576: delete($env{$key});
577: delete($disk_env{$key});
578: }
579: }
1.448 albertel 580: }
1.783 albertel 581: untie(%disk_env);
1.5 www 582: }
583: return 'ok';
1.369 albertel 584: }
585:
1.790 albertel 586: sub get_env_multiple {
587: my ($name) = @_;
588: my @values;
589: if (defined($env{$name})) {
590: # exists is it an array
591: if (ref($env{$name})) {
592: @values=@{ $env{$name} };
593: } else {
594: $values[0]=$env{$name};
595: }
596: }
597: return(@values);
598: }
599:
1.958 www 600: # ------------------------------------------------------------------- Locking
601:
602: sub set_lock {
603: my ($text)=@_;
604: $locknum++;
605: my $id=$$.'-'.$locknum;
606: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
607: 'session.lock.'.$id => $text});
608: return $id;
609: }
610:
611: sub get_locks {
612: my $num=0;
613: my %texts=();
614: foreach my $lock (split(/\,/,$env{'session.locks'})) {
615: if ($lock=~/\w/) {
616: $num++;
617: $texts{$lock}=$env{'session.lock.'.$lock};
618: }
619: }
620: return ($num,%texts);
621: }
622:
623: sub remove_lock {
624: my ($id)=@_;
625: my $newlocks='';
626: foreach my $lock (split(/\,/,$env{'session.locks'})) {
627: if (($lock=~/\w/) && ($lock ne $id)) {
628: $newlocks.=','.$lock;
629: }
630: }
631: &appenv({'session.locks' => $newlocks});
632: &delenv('session.lock.'.$id);
633: }
634:
635: sub remove_all_locks {
636: my $activelocks=$env{'session.locks'};
637: foreach my $lock (split(/\,/,$env{'session.locks'})) {
638: if ($lock=~/\w/) {
639: &remove_lock($lock);
640: }
641: }
642: }
643:
644:
1.369 albertel 645: # ------------------------------------------ Find out current server userload
646: sub userload {
647: my $numusers=0;
648: {
649: opendir(LONIDS,$perlvar{'lonIDsDir'});
650: my $filename;
651: my $curtime=time;
652: while ($filename=readdir(LONIDS)) {
1.925 albertel 653: next if ($filename eq '.' || $filename eq '..');
654: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 655: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 656: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 657: }
658: closedir(LONIDS);
659: }
660: my $userloadpercent=0;
661: my $maxuserload=$perlvar{'lonUserLoadLim'};
662: if ($maxuserload) {
1.371 albertel 663: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 664: }
1.372 albertel 665: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 666: return $userloadpercent;
1.283 www 667: }
668:
669: # ------------------------------------------ Fight off request when overloaded
670:
671: sub overloaderror {
672: my ($r,$checkserver)=@_;
673: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
674: my $loadavg;
675: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 676: open(my $loadfile,'/proc/loadavg');
1.283 www 677: $loadavg=<$loadfile>;
678: $loadavg =~ s/\s.*//g;
1.285 matthew 679: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 680: close($loadfile);
1.283 www 681: } else {
682: $loadavg=&reply('load',$checkserver);
683: }
1.285 matthew 684: my $overload=$loadavg-100;
1.283 www 685: if ($overload>0) {
1.285 matthew 686: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 687: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 688: return 413;
1.283 www 689: }
690: return '';
1.5 www 691: }
1.1 albertel 692:
693: # ------------------------------ Find server with least workload from spare.tab
1.11 www 694:
1.1 albertel 695: sub spareserver {
1.670 albertel 696: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 697: my $spare_server;
1.370 albertel 698: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 699: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
700: : $userloadpercent;
701:
702: foreach my $try_server (@{ $spareid{'primary'} }) {
703: ($spare_server, $lowest_load) =
704: &compare_server_load($try_server, $spare_server, $lowest_load);
705: }
706:
707: my $found_server = ($spare_server ne '' && $lowest_load < 100);
708:
709: if (!$found_server) {
710: foreach my $try_server (@{ $spareid{'default'} }) {
711: ($spare_server, $lowest_load) =
712: &compare_server_load($try_server, $spare_server, $lowest_load);
713: }
714: }
715:
716: if (!$want_server_name) {
1.968 raeburn 717: my $protocol = 'http';
718: if ($protocol{$spare_server} eq 'https') {
719: $protocol = $protocol{$spare_server};
720: }
1.1001 raeburn 721: if (defined($spare_server)) {
722: my $hostname = &hostname($spare_server);
723: if (defined($hostname)) {
724: $spare_server = $protocol.'://'.$hostname;
725: }
726: }
1.784 albertel 727: }
728: return $spare_server;
729: }
730:
731: sub compare_server_load {
732: my ($try_server, $spare_server, $lowest_load) = @_;
733:
734: my $loadans = &reply('load', $try_server);
735: my $userloadans = &reply('userload',$try_server);
736:
737: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
738: next; #didn't get a number from the server
739: }
740:
741: my $load;
742: if ($loadans =~ /\d/) {
743: if ($userloadans =~ /\d/) {
744: #both are numbers, pick the bigger one
745: $load = ($loadans > $userloadans) ? $loadans
746: : $userloadans;
1.411 albertel 747: } else {
1.784 albertel 748: $load = $loadans;
1.411 albertel 749: }
1.784 albertel 750: } else {
751: $load = $userloadans;
752: }
753:
754: if (($load =~ /\d/) && ($load < $lowest_load)) {
755: $spare_server = $try_server;
756: $lowest_load = $load;
1.370 albertel 757: }
1.784 albertel 758: return ($spare_server,$lowest_load);
1.202 matthew 759: }
1.914 albertel 760:
761: # --------------------------- ask offload servers if user already has a session
762: sub find_existing_session {
763: my ($udom,$uname) = @_;
764: foreach my $try_server (@{ $spareid{'primary'} },
765: @{ $spareid{'default'} }) {
766: return $try_server if (&has_user_session($try_server, $udom, $uname));
767: }
768: return;
769: }
770:
771: # -------------------------------- ask if server already has a session for user
772: sub has_user_session {
773: my ($lonid,$udom,$uname) = @_;
774: my $result = &reply(join(':','userhassession',
775: map {&escape($_)} ($udom,$uname)),$lonid);
776: return 1 if ($result eq 'ok');
777:
778: return 0;
779: }
780:
1.202 matthew 781: # --------------------------------------------- Try to change a user's password
782:
783: sub changepass {
1.799 raeburn 784: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 785: $currentpass = &escape($currentpass);
786: $newpass = &escape($newpass);
1.799 raeburn 787: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context",
1.202 matthew 788: $server);
789: if (! $answer) {
790: &logthis("No reply on password change request to $server ".
791: "by $uname in domain $udom.");
792: } elsif ($answer =~ "^ok") {
793: &logthis("$uname in $udom successfully changed their password ".
794: "on $server.");
795: } elsif ($answer =~ "^pwchange_failure") {
796: &logthis("$uname in $udom was unable to change their password ".
797: "on $server. The action was blocked by either lcpasswd ".
798: "or pwchange");
799: } elsif ($answer =~ "^non_authorized") {
800: &logthis("$uname in $udom did not get their password correct when ".
801: "attempting to change it on $server.");
802: } elsif ($answer =~ "^auth_mode_error") {
803: &logthis("$uname in $udom attempted to change their password despite ".
804: "not being locally or internally authenticated on $server.");
805: } elsif ($answer =~ "^unknown_user") {
806: &logthis("$uname in $udom attempted to change their password ".
807: "on $server but were unable to because $server is not ".
808: "their home server.");
809: } elsif ($answer =~ "^refused") {
810: &logthis("$server refused to change $uname in $udom password because ".
811: "it was sent an unencrypted request to change the password.");
812: }
813: return $answer;
1.1 albertel 814: }
815:
1.169 harris41 816: # ----------------------- Try to determine user's current authentication scheme
817:
818: sub queryauthenticate {
819: my ($uname,$udom)=@_;
1.456 albertel 820: my $uhome=&homeserver($uname,$udom);
821: if (!$uhome) {
822: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
823: return 'no_host';
824: }
825: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
826: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
827: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 828: }
1.456 albertel 829: return $answer;
1.169 harris41 830: }
831:
1.1 albertel 832: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 833:
1.1 albertel 834: sub authenticate {
1.952 raeburn 835: my ($uname,$upass,$udom,$checkdefauth)=@_;
1.807 albertel 836: $upass=&escape($upass);
837: $uname= &LONCAPA::clean_username($uname);
1.836 www 838: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 839: my $newhome;
1.836 www 840: if ((!$uhome) || ($uhome eq 'no_host')) {
841: # Maybe the machine was offline and only re-appeared again recently?
842: &reconlonc();
843: # One more
1.952 raeburn 844: $uhome=&homeserver($uname,$udom,1);
845: if (($uhome eq 'no_host') && $checkdefauth) {
846: if (defined(&domain($udom,'primary'))) {
847: $newhome=&domain($udom,'primary');
848: }
849: if ($newhome ne '') {
850: $uhome = $newhome;
851: }
852: }
1.836 www 853: if ((!$uhome) || ($uhome eq 'no_host')) {
854: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 855: return 'no_host';
856: }
1.1 albertel 857: }
1.952 raeburn 858: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth",$uhome);
1.471 albertel 859: if ($answer eq 'authorized') {
1.952 raeburn 860: if ($newhome) {
861: &logthis("User $uname at $udom authorized by $uhome, but needs account");
862: return 'no_account_on_host';
863: } else {
864: &logthis("User $uname at $udom authorized by $uhome");
865: return $uhome;
866: }
1.471 albertel 867: }
868: if ($answer eq 'non_authorized') {
869: &logthis("User $uname at $udom rejected by $uhome");
870: return 'no_host';
1.9 www 871: }
1.471 albertel 872: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 873: return 'no_host';
874: }
875:
876: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 877:
1.599 albertel 878: my %homecache;
1.1 albertel 879: sub homeserver {
1.230 stredwic 880: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 881: my $index="$uname:$udom";
1.426 albertel 882:
1.599 albertel 883: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 884:
885: my %servers = &get_servers($udom,'library');
886: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 887: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 888: exists($badServerCache{$tryserver}));
1.841 albertel 889:
890: my $answer=reply("home:$udom:$uname",$tryserver);
891: if ($answer eq 'found') {
892: delete($badServerCache{$tryserver});
893: return $homecache{$index}=$tryserver;
894: } elsif ($answer eq 'no_host') {
895: $badServerCache{$tryserver}=1;
896: }
1.1 albertel 897: }
898: return 'no_host';
1.70 www 899: }
900:
901: # ------------------------------------- Find the usernames behind a list of IDs
902:
903: sub idget {
904: my ($udom,@ids)=@_;
905: my %returnhash=();
906:
1.841 albertel 907: my %servers = &get_servers($udom,'library');
908: foreach my $tryserver (keys(%servers)) {
909: my $idlist=join('&',@ids);
910: $idlist=~tr/A-Z/a-z/;
911: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
912: my @answer=();
913: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
914: @answer=split(/\&/,$reply);
915: } ;
916: my $i;
917: for ($i=0;$i<=$#ids;$i++) {
918: if ($answer[$i]) {
919: $returnhash{$ids[$i]}=$answer[$i];
920: }
921: }
922: }
1.70 www 923: return %returnhash;
924: }
925:
926: # ------------------------------------- Find the IDs behind a list of usernames
927:
928: sub idrget {
929: my ($udom,@unames)=@_;
930: my %returnhash=();
1.800 albertel 931: foreach my $uname (@unames) {
932: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 933: }
1.70 www 934: return %returnhash;
935: }
936:
937: # ------------------------------- Store away a list of names and associated IDs
938:
939: sub idput {
940: my ($udom,%ids)=@_;
941: my %servers=();
1.800 albertel 942: foreach my $uname (keys(%ids)) {
943: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
944: my $uhom=&homeserver($uname,$udom);
1.70 www 945: if ($uhom ne 'no_host') {
1.800 albertel 946: my $id=&escape($ids{$uname});
1.70 www 947: $id=~tr/A-Z/a-z/;
1.800 albertel 948: my $esc_unam=&escape($uname);
1.70 www 949: if ($servers{$uhom}) {
1.800 albertel 950: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 951: } else {
1.800 albertel 952: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 953: }
954: }
1.191 harris41 955: }
1.800 albertel 956: foreach my $server (keys(%servers)) {
957: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 958: }
1.344 www 959: }
960:
1.806 raeburn 961: # ------------------------------------------- get items from domain db files
962:
963: sub get_dom {
1.860 raeburn 964: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 965: my $items='';
966: foreach my $item (@$storearr) {
967: $items.=&escape($item).'&';
968: }
969: $items=~s/\&$//;
1.860 raeburn 970: if (!$udom) {
971: $udom=$env{'user.domain'};
972: if (defined(&domain($udom,'primary'))) {
973: $uhome=&domain($udom,'primary');
974: } else {
1.874 albertel 975: undef($uhome);
1.860 raeburn 976: }
977: } else {
978: if (!$uhome) {
979: if (defined(&domain($udom,'primary'))) {
980: $uhome=&domain($udom,'primary');
981: }
982: }
983: }
984: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 985: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 986: my %returnhash;
1.875 albertel 987: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 988: return %returnhash;
989: }
1.806 raeburn 990: my @pairs=split(/\&/,$rep);
991: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
992: return @pairs;
993: }
994: my $i=0;
995: foreach my $item (@$storearr) {
996: $returnhash{$item}=&thaw_unescape($pairs[$i]);
997: $i++;
998: }
999: return %returnhash;
1000: } else {
1.880 banghart 1001: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1002: }
1003: }
1004:
1005: # -------------------------------------------- put items in domain db files
1006:
1007: sub put_dom {
1.860 raeburn 1008: my ($namespace,$storehash,$udom,$uhome)=@_;
1009: if (!$udom) {
1010: $udom=$env{'user.domain'};
1011: if (defined(&domain($udom,'primary'))) {
1012: $uhome=&domain($udom,'primary');
1013: } else {
1.874 albertel 1014: undef($uhome);
1.860 raeburn 1015: }
1016: } else {
1017: if (!$uhome) {
1018: if (defined(&domain($udom,'primary'))) {
1019: $uhome=&domain($udom,'primary');
1020: }
1021: }
1022: }
1023: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1024: my $items='';
1025: foreach my $item (keys(%$storehash)) {
1026: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1027: }
1028: $items=~s/\&$//;
1029: return &reply("putdom:$udom:$namespace:$items",$uhome);
1030: } else {
1.860 raeburn 1031: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1032: }
1033: }
1034:
1.837 raeburn 1035: sub retrieve_inst_usertypes {
1036: my ($udom) = @_;
1037: my (%returnhash,@order);
1.989 raeburn 1038: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1039: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1040: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1041: %returnhash = %{$domdefs{'inststatustypes'}};
1042: @order = @{$domdefs{'inststatusorder'}};
1043: } else {
1044: if (defined(&domain($udom,'primary'))) {
1045: my $uhome=&domain($udom,'primary');
1046: my $rep=&reply("inst_usertypes:$udom",$uhome);
1047: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1048: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1049: return (\%returnhash,\@order);
1050: }
1051: my ($hashitems,$orderitems) = split(/:/,$rep);
1052: my @pairs=split(/\&/,$hashitems);
1053: foreach my $item (@pairs) {
1054: my ($key,$value)=split(/=/,$item,2);
1055: $key = &unescape($key);
1056: next if ($key =~ /^error: 2 /);
1057: $returnhash{$key}=&thaw_unescape($value);
1058: }
1059: my @esc_order = split(/\&/,$orderitems);
1060: foreach my $item (@esc_order) {
1061: push(@order,&unescape($item));
1062: }
1063: } else {
1064: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1065: }
1066: }
1067: return (\%returnhash,\@order);
1068: }
1069:
1.868 raeburn 1070: sub is_domainimage {
1071: my ($url) = @_;
1072: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1073: if (&domain($1) ne '') {
1074: return '1';
1075: }
1076: }
1077: return;
1078: }
1079:
1.899 raeburn 1080: sub inst_directory_query {
1081: my ($srch) = @_;
1082: my $udom = $srch->{'srchdomain'};
1083: my %results;
1084: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1085: my $outcome;
1.899 raeburn 1086: if ($homeserver ne '') {
1.904 albertel 1087: my $queryid=&reply("querysend:instdirsearch:".
1088: &escape($srch->{'srchby'}).':'.
1089: &escape($srch->{'srchterm'}).':'.
1090: &escape($srch->{'srchtype'}),$homeserver);
1091: my $host=&hostname($homeserver);
1092: if ($queryid !~/^\Q$host\E\_/) {
1093: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1094: return;
1095: }
1096: my $response = &get_query_reply($queryid);
1097: my $maxtries = 5;
1098: my $tries = 1;
1099: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1100: $response = &get_query_reply($queryid);
1101: $tries ++;
1102: }
1103:
1104: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1105: if ($response eq 'unavailable') {
1106: $outcome = $response;
1107: } else {
1108: $outcome = 'ok';
1109: my @matches = split(/\n/,$response);
1110: foreach my $match (@matches) {
1111: my ($key,$value) = split(/=/,$match);
1112: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1113: }
1.899 raeburn 1114: }
1115: }
1116: }
1.909 raeburn 1117: return ($outcome,%results);
1.899 raeburn 1118: }
1119:
1120: sub usersearch {
1121: my ($srch) = @_;
1122: my $dom = $srch->{'srchdomain'};
1123: my %results;
1124: my %libserv = &all_library();
1125: my $query = 'usersearch';
1126: foreach my $tryserver (keys(%libserv)) {
1127: if (&host_domain($tryserver) eq $dom) {
1128: my $host=&hostname($tryserver);
1129: my $queryid=
1.911 raeburn 1130: &reply("querysend:".&escape($query).':'.
1131: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1132: &escape($srch->{'srchtype'}).':'.
1133: &escape($srch->{'srchterm'}),$tryserver);
1134: if ($queryid !~/^\Q$host\E\_/) {
1135: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1136: next;
1.899 raeburn 1137: }
1138: my $reply = &get_query_reply($queryid);
1139: my $maxtries = 1;
1140: my $tries = 1;
1141: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1142: $reply = &get_query_reply($queryid);
1143: $tries ++;
1144: }
1145: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1146: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1147: } else {
1.911 raeburn 1148: my @matches;
1149: if ($reply =~ /\n/) {
1150: @matches = split(/\n/,$reply);
1151: } else {
1152: @matches = split(/\&/,$reply);
1153: }
1.899 raeburn 1154: foreach my $match (@matches) {
1155: my ($uname,$udom,%userhash);
1.911 raeburn 1156: foreach my $entry (split(/:/,$match)) {
1157: my ($key,$value) =
1158: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1159: $userhash{$key} = $value;
1160: if ($key eq 'username') {
1161: $uname = $value;
1162: } elsif ($key eq 'domain') {
1163: $udom = $value;
1.911 raeburn 1164: }
1.899 raeburn 1165: }
1166: $results{$uname.':'.$udom} = \%userhash;
1167: }
1168: }
1169: }
1170: }
1171: return %results;
1172: }
1173:
1.912 raeburn 1174: sub get_instuser {
1175: my ($udom,$uname,$id) = @_;
1176: my $homeserver = &domain($udom,'primary');
1177: my ($outcome,%results);
1178: if ($homeserver ne '') {
1179: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1180: &escape($id).':'.&escape($udom),$homeserver);
1181: my $host=&hostname($homeserver);
1182: if ($queryid !~/^\Q$host\E\_/) {
1183: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1184: return;
1185: }
1186: my $response = &get_query_reply($queryid);
1187: my $maxtries = 5;
1188: my $tries = 1;
1189: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1190: $response = &get_query_reply($queryid);
1191: $tries ++;
1192: }
1193: if (!&error($response) && $response ne 'refused') {
1194: if ($response eq 'unavailable') {
1195: $outcome = $response;
1196: } else {
1197: $outcome = 'ok';
1198: my @matches = split(/\n/,$response);
1199: foreach my $match (@matches) {
1200: my ($key,$value) = split(/=/,$match);
1201: $results{&unescape($key)} = &thaw_unescape($value);
1202: }
1203: }
1204: }
1205: }
1206: my %userinfo;
1207: if (ref($results{$uname}) eq 'HASH') {
1208: %userinfo = %{$results{$uname}};
1209: }
1210: return ($outcome,%userinfo);
1211: }
1212:
1213: sub inst_rulecheck {
1.923 raeburn 1214: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1215: my %returnhash;
1216: if ($udom ne '') {
1217: if (ref($rules) eq 'ARRAY') {
1218: @{$rules} = map {&escape($_);} (@{$rules});
1219: my $rulestr = join(':',@{$rules});
1220: my $homeserver=&domain($udom,'primary');
1221: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1222: my $response;
1223: if ($item eq 'username') {
1224: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1225: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1226: $homeserver));
1.923 raeburn 1227: } elsif ($item eq 'id') {
1228: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1229: ':'.&escape($id).':'.$rulestr,
1230: $homeserver));
1.945 raeburn 1231: } elsif ($item eq 'selfcreate') {
1232: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1233: &escape($udom).':'.&escape($uname).
1234: ':'.$rulestr,$homeserver));
1.923 raeburn 1235: }
1.912 raeburn 1236: if ($response ne 'refused') {
1237: my @pairs=split(/\&/,$response);
1238: foreach my $item (@pairs) {
1239: my ($key,$value)=split(/=/,$item,2);
1240: $key = &unescape($key);
1241: next if ($key =~ /^error: 2 /);
1242: $returnhash{$key}=&thaw_unescape($value);
1243: }
1244: }
1245: }
1246: }
1247: }
1248: return %returnhash;
1249: }
1250:
1251: sub inst_userrules {
1.923 raeburn 1252: my ($udom,$check) = @_;
1.912 raeburn 1253: my (%ruleshash,@ruleorder);
1254: if ($udom ne '') {
1255: my $homeserver=&domain($udom,'primary');
1256: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1257: my $response;
1258: if ($check eq 'id') {
1259: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1260: $homeserver);
1.943 raeburn 1261: } elsif ($check eq 'email') {
1262: $response=&reply('instemailrules:'.&escape($udom),
1263: $homeserver);
1.923 raeburn 1264: } else {
1265: $response=&reply('instuserrules:'.&escape($udom),
1266: $homeserver);
1267: }
1.912 raeburn 1268: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1269: ($response ne 'unknown_cmd') &&
1.912 raeburn 1270: ($response ne 'no_such_host')) {
1271: my ($hashitems,$orderitems) = split(/:/,$response);
1272: my @pairs=split(/\&/,$hashitems);
1273: foreach my $item (@pairs) {
1274: my ($key,$value)=split(/=/,$item,2);
1275: $key = &unescape($key);
1276: next if ($key =~ /^error: 2 /);
1277: $ruleshash{$key}=&thaw_unescape($value);
1278: }
1279: my @esc_order = split(/\&/,$orderitems);
1280: foreach my $item (@esc_order) {
1281: push(@ruleorder,&unescape($item));
1282: }
1283: }
1284: }
1285: }
1286: return (\%ruleshash,\@ruleorder);
1287: }
1288:
1.976 raeburn 1289: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1290:
1291: sub get_domain_defaults {
1292: my ($domain) = @_;
1293: my $cachetime = 60*60*24;
1294: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1295: if (defined($cached)) {
1296: if (ref($result) eq 'HASH') {
1297: return %{$result};
1298: }
1299: }
1300: my %domdefaults;
1301: my %domconfig =
1.989 raeburn 1302: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1303: 'requestcourses','inststatus'],$domain);
1.943 raeburn 1304: if (ref($domconfig{'defaults'}) eq 'HASH') {
1305: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1306: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1307: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1308: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1309: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.943 raeburn 1310: } else {
1311: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1312: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1313: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1314: }
1.976 raeburn 1315: if (ref($domconfig{'quotas'}) eq 'HASH') {
1316: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1317: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1318: } else {
1319: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1320: }
1321: my @usertools = ('aboutme','blog','portfolio');
1322: foreach my $item (@usertools) {
1323: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1324: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1325: }
1326: }
1327: }
1.985 raeburn 1328: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 ! raeburn 1329: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1330: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1331: }
1332: }
1.989 raeburn 1333: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1334: foreach my $item ('inststatustypes','inststatusorder') {
1335: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1336: }
1337: }
1.943 raeburn 1338: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1339: $cachetime);
1340: return %domdefaults;
1341: }
1342:
1.344 www 1343: # --------------------------------------------------- Assign a key to a student
1344:
1345: sub assign_access_key {
1.364 www 1346: #
1347: # a valid key looks like uname:udom#comments
1348: # comments are being appended
1349: #
1.498 www 1350: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1351: $kdom=
1.620 albertel 1352: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1353: $knum=
1.620 albertel 1354: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1355: $cdom=
1.620 albertel 1356: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1357: $cnum=
1.620 albertel 1358: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1359: $udom=$env{'user.name'} unless (defined($udom));
1360: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1361: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1362: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1363: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1364: # assigned to this person
1365: # - this should not happen,
1.345 www 1366: # unless something went wrong
1367: # the first time around
1368: # ready to assign
1.364 www 1369: $logentry=$1.'; '.$logentry;
1.496 www 1370: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1371: $kdom,$knum) eq 'ok') {
1.345 www 1372: # key now belongs to user
1.346 www 1373: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1374: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1375: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1376: return 'ok';
1377: } else {
1378: return
1379: 'error: Count not permanently assign key, will need to be re-entered later.';
1380: }
1381: } else {
1382: return 'error: Could not assign key, try again later.';
1383: }
1.364 www 1384: } elsif (!$existing{$ckey}) {
1.345 www 1385: # the key does not exist
1386: return 'error: The key does not exist';
1387: } else {
1388: # the key is somebody else's
1389: return 'error: The key is already in use';
1390: }
1.344 www 1391: }
1392:
1.364 www 1393: # ------------------------------------------ put an additional comment on a key
1394:
1395: sub comment_access_key {
1396: #
1397: # a valid key looks like uname:udom#comments
1398: # comments are being appended
1399: #
1400: my ($ckey,$cdom,$cnum,$logentry)=@_;
1401: $cdom=
1.620 albertel 1402: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1403: $cnum=
1.620 albertel 1404: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1405: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1406: if ($existing{$ckey}) {
1407: $existing{$ckey}.='; '.$logentry;
1408: # ready to assign
1.367 www 1409: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1410: $cdom,$cnum) eq 'ok') {
1411: return 'ok';
1412: } else {
1413: return 'error: Count not store comment.';
1414: }
1415: } else {
1416: # the key does not exist
1417: return 'error: The key does not exist';
1418: }
1419: }
1420:
1.344 www 1421: # ------------------------------------------------------ Generate a set of keys
1422:
1423: sub generate_access_keys {
1.364 www 1424: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1425: $cdom=
1.620 albertel 1426: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1427: $cnum=
1.620 albertel 1428: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1429: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1430: unless (($cdom) && ($cnum)) { return 0; }
1431: if ($number>10000) { return 0; }
1432: sleep(2); # make sure don't get same seed twice
1433: srand(time()^($$+($$<<15))); # from "Programming Perl"
1434: my $total=0;
1435: for (my $i=1;$i<=$number;$i++) {
1436: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1437: sprintf("%lx",int(100000*rand)).'-'.
1438: sprintf("%lx",int(100000*rand));
1439: $newkey=~s/1/g/g; # folks mix up 1 and l
1440: $newkey=~s/0/h/g; # and also 0 and O
1441: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1442: if ($existing{$newkey}) {
1443: $i--;
1444: } else {
1.364 www 1445: if (&put('accesskeys',
1446: { $newkey => '# generated '.localtime().
1.620 albertel 1447: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1448: '; '.$logentry },
1449: $cdom,$cnum) eq 'ok') {
1.344 www 1450: $total++;
1451: }
1452: }
1453: }
1.620 albertel 1454: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1455: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1456: return $total;
1457: }
1458:
1459: # ------------------------------------------------------- Validate an accesskey
1460:
1461: sub validate_access_key {
1462: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1463: $cdom=
1.620 albertel 1464: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1465: $cnum=
1.620 albertel 1466: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1467: $udom=$env{'user.domain'} unless (defined($udom));
1468: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1469: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1470: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1471: }
1472:
1473: # ------------------------------------- Find the section of student in a course
1.652 albertel 1474: sub devalidate_getsection_cache {
1475: my ($udom,$unam,$courseid)=@_;
1476: my $hashid="$udom:$unam:$courseid";
1477: &devalidate_cache_new('getsection',$hashid);
1478: }
1.298 matthew 1479:
1.815 albertel 1480: sub courseid_to_courseurl {
1481: my ($courseid) = @_;
1482: #already url style courseid
1483: return $courseid if ($courseid =~ m{^/});
1484:
1485: if (exists($env{'course.'.$courseid.'.num'})) {
1486: my $cnum = $env{'course.'.$courseid.'.num'};
1487: my $cdom = $env{'course.'.$courseid.'.domain'};
1488: return "/$cdom/$cnum";
1489: }
1490:
1491: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1492: if (exists($courseinfo{'num'})) {
1493: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1494: }
1495:
1496: return undef;
1497: }
1498:
1.298 matthew 1499: sub getsection {
1500: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1501: my $cachetime=1800;
1.551 albertel 1502:
1503: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1504: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1505: if (defined($cached)) { return $result; }
1506:
1.298 matthew 1507: my %Pending;
1508: my %Expired;
1509: #
1510: # Each role can either have not started yet (pending), be active,
1511: # or have expired.
1512: #
1513: # If there is an active role, we are done.
1514: #
1515: # If there is more than one role which has not started yet,
1516: # choose the one which will start sooner
1517: # If there is one role which has not started yet, return it.
1518: #
1519: # If there is more than one expired role, choose the one which ended last.
1520: # If there is a role which has expired, return it.
1521: #
1.815 albertel 1522: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1523: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1524: foreach my $key (keys(%roleshash)) {
1.479 albertel 1525: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1526: my $section=$1;
1527: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1528: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1529: my $now=time;
1.548 albertel 1530: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1531: $Expired{$end}=$section;
1532: next;
1533: }
1.548 albertel 1534: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1535: $Pending{$start}=$section;
1536: next;
1537: }
1.599 albertel 1538: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1539: }
1540: #
1541: # Presumedly there will be few matching roles from the above
1542: # loop and the sorting time will be negligible.
1543: if (scalar(keys(%Pending))) {
1544: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1545: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1546: }
1547: if (scalar(keys(%Expired))) {
1548: my @sorted = sort {$a <=> $b} keys(%Expired);
1549: my $time = pop(@sorted);
1.599 albertel 1550: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1551: }
1.599 albertel 1552: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1553: }
1.70 www 1554:
1.599 albertel 1555: sub save_cache {
1556: &purge_remembered();
1.722 albertel 1557: #&Apache::loncommon::validate_page();
1.620 albertel 1558: undef(%env);
1.780 albertel 1559: undef($env_loaded);
1.599 albertel 1560: }
1.452 albertel 1561:
1.599 albertel 1562: my $to_remember=-1;
1563: my %remembered;
1564: my %accessed;
1565: my $kicks=0;
1566: my $hits=0;
1.849 albertel 1567: sub make_key {
1568: my ($name,$id) = @_;
1.872 albertel 1569: if (length($id) > 65
1570: && length(&escape($id)) > 200) {
1571: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1572: }
1.849 albertel 1573: return &escape($name.':'.$id);
1574: }
1575:
1.599 albertel 1576: sub devalidate_cache_new {
1577: my ($name,$id,$debug) = @_;
1578: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1579: $id=&make_key($name,$id);
1.599 albertel 1580: $memcache->delete($id);
1581: delete($remembered{$id});
1582: delete($accessed{$id});
1583: }
1584:
1585: sub is_cached_new {
1586: my ($name,$id,$debug) = @_;
1.849 albertel 1587: $id=&make_key($name,$id);
1.599 albertel 1588: if (exists($remembered{$id})) {
1589: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1590: $accessed{$id}=[&gettimeofday()];
1591: $hits++;
1592: return ($remembered{$id},1);
1593: }
1594: my $value = $memcache->get($id);
1595: if (!(defined($value))) {
1596: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1597: return (undef,undef);
1.416 albertel 1598: }
1.599 albertel 1599: if ($value eq '__undef__') {
1600: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1601: $value=undef;
1602: }
1603: &make_room($id,$value,$debug);
1604: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1605: return ($value,1);
1606: }
1607:
1608: sub do_cache_new {
1609: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1610: $id=&make_key($name,$id);
1.599 albertel 1611: my $setvalue=$value;
1612: if (!defined($setvalue)) {
1613: $setvalue='__undef__';
1614: }
1.623 albertel 1615: if (!defined($time) ) {
1616: $time=600;
1617: }
1.599 albertel 1618: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1619: my $result = $memcache->set($id,$setvalue,$time);
1620: if (! $result) {
1.872 albertel 1621: &logthis("caching of id -> $id failed");
1.910 albertel 1622: $memcache->disconnect_all();
1.872 albertel 1623: }
1.600 albertel 1624: # need to make a copy of $value
1.919 albertel 1625: &make_room($id,$value,$debug);
1.599 albertel 1626: return $value;
1627: }
1628:
1629: sub make_room {
1630: my ($id,$value,$debug)=@_;
1.919 albertel 1631:
1632: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1633: : $value;
1.599 albertel 1634: if ($to_remember<0) { return; }
1635: $accessed{$id}=[&gettimeofday()];
1636: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1637: my $to_kick;
1638: my $max_time=0;
1639: foreach my $other (keys(%accessed)) {
1640: if (&tv_interval($accessed{$other}) > $max_time) {
1641: $to_kick=$other;
1642: $max_time=&tv_interval($accessed{$other});
1643: }
1644: }
1645: delete($remembered{$to_kick});
1646: delete($accessed{$to_kick});
1647: $kicks++;
1648: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1649: return;
1650: }
1651:
1.599 albertel 1652: sub purge_remembered {
1.604 albertel 1653: #&logthis("Tossing ".scalar(keys(%remembered)));
1654: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1655: undef(%remembered);
1656: undef(%accessed);
1.428 albertel 1657: }
1.70 www 1658: # ------------------------------------- Read an entry from a user's environment
1659:
1660: sub userenvironment {
1661: my ($udom,$unam,@what)=@_;
1.976 raeburn 1662: my $items;
1663: foreach my $item (@what) {
1664: $items.=&escape($item).'&';
1665: }
1666: $items=~s/\&$//;
1.70 www 1667: my %returnhash=();
1668: my @answer=split(/\&/,
1.976 raeburn 1669: &reply('get:'.$udom.':'.$unam.':environment:'.$items,
1.70 www 1670: &homeserver($unam,$udom)));
1671: my $i;
1672: for ($i=0;$i<=$#what;$i++) {
1673: $returnhash{$what[$i]}=&unescape($answer[$i]);
1674: }
1675: return %returnhash;
1.1 albertel 1676: }
1677:
1.617 albertel 1678: # ---------------------------------------------------------- Get a studentphoto
1679: sub studentphoto {
1680: my ($udom,$unam,$ext) = @_;
1681: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1682: if (defined($env{'request.course.id'})) {
1.708 raeburn 1683: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1684: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1685: return(&retrievestudentphoto($udom,$unam,$ext));
1686: } else {
1687: my ($result,$perm_reqd)=
1.707 albertel 1688: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1689: if ($result eq 'ok') {
1690: if (!($perm_reqd eq 'yes')) {
1691: return(&retrievestudentphoto($udom,$unam,$ext));
1692: }
1693: }
1694: }
1695: }
1696: } else {
1697: my ($result,$perm_reqd) =
1.707 albertel 1698: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1699: if ($result eq 'ok') {
1700: if (!($perm_reqd eq 'yes')) {
1701: return(&retrievestudentphoto($udom,$unam,$ext));
1702: }
1703: }
1704: }
1705: return '/adm/lonKaputt/lonlogo_broken.gif';
1706: }
1707:
1708: sub retrievestudentphoto {
1709: my ($udom,$unam,$ext,$type) = @_;
1710: my $home=&Apache::lonnet::homeserver($unam,$udom);
1711: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1712: if ($ret eq 'ok') {
1713: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1714: if ($type eq 'thumbnail') {
1715: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1716: }
1717: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1718: return $tokenurl;
1719: } else {
1720: if ($type eq 'thumbnail') {
1721: return '/adm/lonKaputt/genericstudent_tn.gif';
1722: } else {
1723: return '/adm/lonKaputt/lonlogo_broken.gif';
1724: }
1.617 albertel 1725: }
1726: }
1727:
1.263 www 1728: # -------------------------------------------------------------------- New chat
1729:
1730: sub chatsend {
1.724 raeburn 1731: my ($newentry,$anon,$group)=@_;
1.620 albertel 1732: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1733: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1734: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1735: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1736: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1737: &escape($newentry)).':'.$group,$chome);
1.292 www 1738: }
1739:
1740: # ------------------------------------------ Find current version of a resource
1741:
1742: sub getversion {
1743: my $fname=&clutter(shift);
1744: unless ($fname=~/^\/res\//) { return -1; }
1745: return ¤tversion(&filelocation('',$fname));
1746: }
1747:
1748: sub currentversion {
1749: my $fname=shift;
1.599 albertel 1750: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1751: if (defined($cached)) { return $result; }
1.292 www 1752: my $author=$fname;
1753: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1754: my ($udom,$uname)=split(/\//,$author);
1755: my $home=homeserver($uname,$udom);
1756: if ($home eq 'no_host') {
1757: return -1;
1758: }
1759: my $answer=reply("currentversion:$fname",$home);
1760: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1761: return -1;
1762: }
1.599 albertel 1763: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1764: }
1765:
1.1 albertel 1766: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1767:
1.1 albertel 1768: sub subscribe {
1769: my $fname=shift;
1.761 raeburn 1770: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1771: $fname=~s/[\n\r]//g;
1.1 albertel 1772: my $author=$fname;
1773: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1774: my ($udom,$uname)=split(/\//,$author);
1775: my $home=homeserver($uname,$udom);
1.335 albertel 1776: if ($home eq 'no_host') {
1777: return 'not_found';
1.1 albertel 1778: }
1779: my $answer=reply("sub:$fname",$home);
1.64 www 1780: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1781: $answer.=' by '.$home;
1782: }
1.1 albertel 1783: return $answer;
1784: }
1785:
1.8 www 1786: # -------------------------------------------------------------- Replicate file
1787:
1788: sub repcopy {
1789: my $filename=shift;
1.23 www 1790: $filename=~s/\/+/\//g;
1.607 raeburn 1791: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1792: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1793: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1794: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1795: return &repcopy_userfile($filename);
1796: }
1.532 albertel 1797: $filename=~s/[\n\r]//g;
1.8 www 1798: my $transname="$filename.in.transfer";
1.828 www 1799: # FIXME: this should flock
1.607 raeburn 1800: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1801: my $remoteurl=subscribe($filename);
1.64 www 1802: if ($remoteurl =~ /^con_lost by/) {
1803: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1804: return 'unavailable';
1.8 www 1805: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1806: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1807: return 'not_found';
1.64 www 1808: } elsif ($remoteurl =~ /^rejected by/) {
1809: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1810: return 'forbidden';
1.20 www 1811: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1812: return 'ok';
1.8 www 1813: } else {
1.290 www 1814: my $author=$filename;
1815: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1816: my ($udom,$uname)=split(/\//,$author);
1817: my $home=homeserver($uname,$udom);
1818: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1819: my @parts=split(/\//,$filename);
1820: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1821: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1822: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1823: return 'bad_request';
1.8 www 1824: }
1825: my $count;
1826: for ($count=5;$count<$#parts;$count++) {
1827: $path.="/$parts[$count]";
1828: if ((-e $path)!=1) {
1829: mkdir($path,0777);
1830: }
1831: }
1832: my $ua=new LWP::UserAgent;
1833: my $request=new HTTP::Request('GET',"$remoteurl");
1834: my $response=$ua->request($request,$transname);
1835: if ($response->is_error()) {
1836: unlink($transname);
1837: my $message=$response->status_line;
1.672 albertel 1838: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1839: ." LWP get: $message: $filename</font>");
1.607 raeburn 1840: return 'unavailable';
1.8 www 1841: } else {
1.16 www 1842: if ($remoteurl!~/\.meta$/) {
1843: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1844: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1845: if ($mresponse->is_error()) {
1846: unlink($filename.'.meta');
1847: &logthis(
1.672 albertel 1848: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1849: }
1850: }
1.8 www 1851: rename($transname,$filename);
1.607 raeburn 1852: return 'ok';
1.8 www 1853: }
1.290 www 1854: }
1.8 www 1855: }
1.330 www 1856: }
1857:
1858: # ------------------------------------------------ Get server side include body
1859: sub ssi_body {
1.381 albertel 1860: my ($filelink,%form)=@_;
1.606 matthew 1861: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1862: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1863: }
1.953 www 1864: my $output='';
1865: my $response;
1.980 raeburn 1866: if ($filelink=~/^https?\:/) {
1.954 raeburn 1867: ($output,$response)=&externalssi($filelink);
1.953 www 1868: } else {
1.1004 droeschl 1869: $filelink .= $filelink=~/\?/ ? '&' : '?';
1870: $filelink .= 'inhibitmenu=yes';
1.953 www 1871: ($output,$response)=&ssi($filelink,%form);
1872: }
1.778 albertel 1873: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1874: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 1875: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 1876: if (wantarray) {
1877: return ($output, $response);
1878: } else {
1879: return $output;
1880: }
1.8 www 1881: }
1882:
1.15 www 1883: # --------------------------------------------------------- Server Side Include
1884:
1.782 albertel 1885: sub absolute_url {
1886: my ($host_name) = @_;
1887: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1888: if ($host_name eq '') {
1889: $host_name = $ENV{'SERVER_NAME'};
1890: }
1891: return $protocol.$host_name;
1892: }
1893:
1.942 foxr 1894: #
1895: # Server side include.
1896: # Parameters:
1897: # fn Possibly encrypted resource name/id.
1898: # form Hash that describes how the rendering should be done
1899: # and other things.
1.944 foxr 1900: # Returns:
1.950 raeburn 1901: # Scalar context: The content of the response.
1902: # Array context: 2 element list of the content and the full response object.
1.942 foxr 1903: #
1.15 www 1904: sub ssi {
1905:
1.944 foxr 1906: my ($fn,%form)=@_;
1.15 www 1907: my $ua=new LWP::UserAgent;
1.23 www 1908: my $request;
1.711 albertel 1909:
1910: $form{'no_update_last_known'}=1;
1.895 albertel 1911: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 1912: if (%form) {
1.782 albertel 1913: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 1914: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 1915: } else {
1.782 albertel 1916: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1917: }
1918:
1.15 www 1919: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1920: my $response=$ua->request($request);
1921:
1.944 foxr 1922: if (wantarray) {
1923: return ($response->content, $response);
1924: } else {
1925: return $response->content;
1.942 foxr 1926: }
1.324 www 1927: }
1928:
1929: sub externalssi {
1930: my ($url)=@_;
1931: my $ua=new LWP::UserAgent;
1932: my $request=new HTTP::Request('GET',$url);
1933: my $response=$ua->request($request);
1.954 raeburn 1934: if (wantarray) {
1935: return ($response->content, $response);
1936: } else {
1937: return $response->content;
1938: }
1.15 www 1939: }
1.254 www 1940:
1.492 albertel 1941: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1942:
1943: sub allowuploaded {
1944: my ($srcurl,$url)=@_;
1945: $url=&clutter(&declutter($url));
1946: my $dir=$url;
1947: $dir=~s/\/[^\/]+$//;
1948: my %httpref=();
1949: my $httpurl=&hreflocation('',$url);
1950: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 1951: &Apache::lonnet::appenv(\%httpref);
1.254 www 1952: }
1.477 raeburn 1953:
1.478 albertel 1954: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1955: # input: action, courseID, current domain, intended
1.637 raeburn 1956: # path to file, source of file, instruction to parse file for objects,
1957: # ref to hash for embedded objects,
1958: # ref to hash for codebase of java objects.
1959: #
1.485 raeburn 1960: # output: url to file (if action was uploaddoc),
1961: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1962: #
1.478 albertel 1963: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1964: # course.
1.477 raeburn 1965: #
1.478 albertel 1966: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1967: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1968: # course's home server.
1.477 raeburn 1969: #
1.478 albertel 1970: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1971: # be copied from $source (current location) to
1972: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1973: # and will then be copied to
1974: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1975: # course's home server.
1.485 raeburn 1976: #
1.481 raeburn 1977: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1978: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1979: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1980: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1981: # in course's home server.
1.637 raeburn 1982: #
1.477 raeburn 1983:
1984: sub process_coursefile {
1.638 albertel 1985: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1986: my $fetchresult;
1.638 albertel 1987: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1988: if ($action eq 'propagate') {
1.638 albertel 1989: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1990: $home);
1.481 raeburn 1991: } else {
1.477 raeburn 1992: my $fpath = '';
1993: my $fname = $file;
1.478 albertel 1994: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1995: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1996: my $filepath = &build_filepath($fpath);
1.481 raeburn 1997: if ($action eq 'copy') {
1998: if ($source eq '') {
1999: $fetchresult = 'no source file';
2000: return $fetchresult;
2001: } else {
2002: my $destination = $filepath.'/'.$fname;
2003: rename($source,$destination);
2004: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2005: $home);
1.481 raeburn 2006: }
2007: } elsif ($action eq 'uploaddoc') {
2008: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2009: print $fh $env{'form.'.$source};
1.481 raeburn 2010: close($fh);
1.637 raeburn 2011: if ($parser eq 'parse') {
1.961 raeburn 2012: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
1.637 raeburn 2013: unless ($parse_result eq 'ok') {
2014: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2015: }
2016: }
1.477 raeburn 2017: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2018: $home);
1.481 raeburn 2019: if ($fetchresult eq 'ok') {
2020: return '/uploaded/'.$fpath.'/'.$fname;
2021: } else {
2022: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2023: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2024: return '/adm/notfound.html';
2025: }
1.477 raeburn 2026: }
2027: }
1.485 raeburn 2028: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2029: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2030: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2031: }
2032: return $fetchresult;
2033: }
2034:
1.637 raeburn 2035: sub build_filepath {
2036: my ($fpath) = @_;
2037: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2038: unless ($fpath eq '') {
2039: my @parts=split('/',$fpath);
2040: foreach my $part (@parts) {
2041: $filepath.= '/'.$part;
2042: if ((-e $filepath)!=1) {
2043: mkdir($filepath,0777);
2044: }
2045: }
2046: }
2047: return $filepath;
2048: }
2049:
2050: sub store_edited_file {
1.638 albertel 2051: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2052: my $file = $primary_url;
2053: $file =~ s#^/uploaded/$docudom/$docuname/##;
2054: my $fpath = '';
2055: my $fname = $file;
2056: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2057: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2058: my $filepath = &build_filepath($fpath);
2059: open(my $fh,'>'.$filepath.'/'.$fname);
2060: print $fh $content;
2061: close($fh);
1.638 albertel 2062: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2063: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2064: $home);
1.637 raeburn 2065: if ($$fetchresult eq 'ok') {
2066: return '/uploaded/'.$fpath.'/'.$fname;
2067: } else {
1.638 albertel 2068: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2069: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2070: return '/adm/notfound.html';
2071: }
2072: }
2073:
1.531 albertel 2074: sub clean_filename {
1.831 albertel 2075: my ($fname,$args)=@_;
1.315 www 2076: # Replace Windows backslashes by forward slashes
1.257 www 2077: $fname=~s/\\/\//g;
1.831 albertel 2078: if (!$args->{'keep_path'}) {
2079: # Get rid of everything but the actual filename
2080: $fname=~s/^.*\/([^\/]+)$/$1/;
2081: }
1.315 www 2082: # Replace spaces by underscores
2083: $fname=~s/\s+/\_/g;
2084: # Replace all other weird characters by nothing
1.831 albertel 2085: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2086: # Replace all .\d. sequences with _\d. so they no longer look like version
2087: # numbers
2088: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2089: return $fname;
2090: }
1.984 neumanie 2091: #This Function check if a Image max 400px width and height 500px. If not then scale the image down
2092: sub resizeImage {
2093: my($img_url) = @_;
2094: my $ima = Image::Magick->new;
2095: $ima->Read($img_url);
2096: if($ima->Get('width') > 400)
2097: {
2098: my $factor = $ima->Get('width')/400;
2099: $ima->Scale( width=>400, height=>$ima->Get('height')/$factor );
2100: }
2101: if($ima->Get('height') > 500)
2102: {
2103: my $factor = $ima->Get('height')/500;
2104: $ima->Scale( width=>$ima->Get('width')/$factor, height=>500);
2105: }
2106:
2107: $ima->Write($img_url);
2108: }
1.531 albertel 2109:
1.977 amueller 2110: #Wrapper function for userphotoupload
2111: sub userphotoupload
2112: {
2113: my($formname,$subdir) = @_;
2114: $upload_photo_form = 1;
2115: return &userfileupload($formname,undef,$subdir);
2116: }
2117:
1.608 albertel 2118: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2119: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 2120: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 2121: # $coursedoc - if true up to the current course
2122: # if false
2123: # $subdir - directory in userfile to store the file into
1.858 raeburn 2124: # $parser - instruction to parse file for objects ($parser = parse)
2125: # $allfiles - reference to hash for embedded objects
2126: # $codebase - reference to hash for codebase of java objects
2127: # $desuname - username for permanent storage of uploaded file
2128: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2129: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2130: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 2131: #
1.686 albertel 2132: # output: url of file in userspace, or error: <message>
2133: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2134:
2135:
1.531 albertel 2136: sub userfileupload {
1.860 raeburn 2137: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
2138: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 2139: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2140: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2141: $fname=&clean_filename($fname);
1.315 www 2142: # See if there is anything left
1.257 www 2143: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 2144: chop($env{'form.'.$formname});
1.523 raeburn 2145: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
2146: my $now = time;
2147: my $filepath = 'tmp/helprequests/'.$now;
2148: my @parts=split(/\//,$filepath);
2149: my $fullpath = $perlvar{'lonDaemons'};
2150: for (my $i=0;$i<@parts;$i++) {
2151: $fullpath .= '/'.$parts[$i];
2152: if ((-e $fullpath)!=1) {
2153: mkdir($fullpath,0777);
2154: }
2155: }
2156: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 2157: print $fh $env{'form.'.$formname};
1.523 raeburn 2158: close($fh);
1.741 raeburn 2159: return $fullpath.'/'.$fname;
2160: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
2161: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2162: '_'.$env{'user.domain'}.'/pending';
2163: my @parts=split(/\//,$filepath);
2164: my $fullpath = $perlvar{'lonDaemons'};
2165: for (my $i=0;$i<@parts;$i++) {
2166: $fullpath .= '/'.$parts[$i];
2167: if ((-e $fullpath)!=1) {
2168: mkdir($fullpath,0777);
2169: }
2170: }
2171: open(my $fh,'>'.$fullpath.'/'.$fname);
2172: print $fh $env{'form.'.$formname};
2173: close($fh);
2174: return $fullpath.'/'.$fname;
1.523 raeburn 2175: }
1.995 raeburn 2176: if ($subdir eq 'scantron') {
2177: $fname = 'scantron_orig_'.$fname;
2178: } else {
1.258 www 2179: # Create the directory if not present
1.995 raeburn 2180: $fname="$subdir/$fname";
2181: }
1.259 www 2182: if ($coursedoc) {
1.638 albertel 2183: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2184: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2185: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2186: return &finishuserfileupload($docuname,$docudom,
2187: $formname,$fname,$parser,$allfiles,
1.860 raeburn 2188: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 2189: } else {
1.620 albertel 2190: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2191: return &process_coursefile('uploaddoc',$docuname,$docudom,
2192: $fname,$formname,$parser,
2193: $allfiles,$codebase);
1.481 raeburn 2194: }
1.719 banghart 2195: } elsif (defined($destuname)) {
2196: my $docuname=$destuname;
2197: my $docudom=$destudom;
1.860 raeburn 2198: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2199: $parser,$allfiles,$codebase,
2200: $thumbwidth,$thumbheight);
1.719 banghart 2201:
1.259 www 2202: } else {
1.638 albertel 2203: my $docuname=$env{'user.name'};
2204: my $docudom=$env{'user.domain'};
1.714 raeburn 2205: if (exists($env{'form.group'})) {
2206: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2207: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2208: }
1.860 raeburn 2209: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2210: $parser,$allfiles,$codebase,
2211: $thumbwidth,$thumbheight);
1.259 www 2212: }
1.271 www 2213: }
2214:
2215: sub finishuserfileupload {
1.860 raeburn 2216: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
2217: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 2218: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2219: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2220:
1.860 raeburn 2221: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2222: $file=$fname;
2223: if ($fname=~m|/|) {
2224: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2225: $path.=$fnamepath.'/';
2226: }
1.259 www 2227: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2228: my $count;
2229: for ($count=4;$count<=$#parts;$count++) {
2230: $filepath.="/$parts[$count]";
2231: if ((-e $filepath)!=1) {
2232: mkdir($filepath,0777);
2233: }
2234: }
1.984 neumanie 2235:
1.258 www 2236: # Save the file
2237: {
1.701 albertel 2238: if (!open(FH,'>'.$filepath.'/'.$file)) {
2239: &logthis('Failed to create '.$filepath.'/'.$file);
2240: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2241: return '/adm/notfound.html';
2242: }
2243: if (!print FH ($env{'form.'.$formname})) {
2244: &logthis('Failed to write to '.$filepath.'/'.$file);
2245: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2246: return '/adm/notfound.html';
2247: }
1.570 albertel 2248: close(FH);
1.977 amueller 2249: if($upload_photo_form==1)
2250: {
1.984 neumanie 2251: resizeImage($filepath.'/'.$file);
1.977 amueller 2252: $upload_photo_form = 0;
2253: }
1.258 www 2254: }
1.637 raeburn 2255: if ($parser eq 'parse') {
1.961 raeburn 2256: my $parse_result = &extract_embedded_items($filepath.'/'.$file,$allfiles,
1.638 albertel 2257: $codebase);
1.637 raeburn 2258: unless ($parse_result eq 'ok') {
1.638 albertel 2259: &logthis('Failed to parse '.$filepath.$file.
2260: ' for embedded media: '.$parse_result);
1.637 raeburn 2261: }
2262: }
1.860 raeburn 2263: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2264: my $input = $filepath.'/'.$file;
2265: my $output = $filepath.'/'.'tn-'.$file;
2266: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2267: system("convert -sample $thumbsize $input $output");
2268: if (-e $filepath.'/'.'tn-'.$file) {
2269: $fetchthumb = 1;
2270: }
2271: }
1.858 raeburn 2272:
1.259 www 2273: # Notify homeserver to grep it
2274: #
1.984 neumanie 2275: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2276: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2277: if ($fetchresult eq 'ok') {
1.860 raeburn 2278: if ($fetchthumb) {
2279: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2280: if ($thumbresult ne 'ok') {
2281: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2282: $docuhome.': '.$thumbresult);
2283: }
2284: }
1.259 www 2285: #
1.258 www 2286: # Return the URL to it
1.494 albertel 2287: return '/uploaded/'.$path.$file;
1.263 www 2288: } else {
1.494 albertel 2289: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2290: ': '.$fetchresult);
1.263 www 2291: return '/adm/notfound.html';
1.858 raeburn 2292: }
1.493 albertel 2293: }
2294:
1.637 raeburn 2295: sub extract_embedded_items {
1.961 raeburn 2296: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2297: my @state = ();
2298: my %javafiles = (
2299: codebase => '',
2300: code => '',
2301: archive => ''
2302: );
2303: my %mediafiles = (
2304: src => '',
2305: movie => '',
2306: );
1.648 raeburn 2307: my $p;
2308: if ($content) {
2309: $p = HTML::LCParser->new($content);
2310: } else {
1.961 raeburn 2311: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2312: }
1.641 albertel 2313: while (my $t=$p->get_token()) {
1.640 albertel 2314: if ($t->[0] eq 'S') {
2315: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2316: push(@state, $tagname);
1.648 raeburn 2317: if (lc($tagname) eq 'allow') {
2318: &add_filetype($allfiles,$attr->{'src'},'src');
2319: }
1.640 albertel 2320: if (lc($tagname) eq 'img') {
2321: &add_filetype($allfiles,$attr->{'src'},'src');
2322: }
1.886 albertel 2323: if (lc($tagname) eq 'a') {
2324: &add_filetype($allfiles,$attr->{'href'},'href');
2325: }
1.645 raeburn 2326: if (lc($tagname) eq 'script') {
2327: if ($attr->{'archive'} =~ /\.jar$/i) {
2328: &add_filetype($allfiles,$attr->{'archive'},'archive');
2329: } else {
2330: &add_filetype($allfiles,$attr->{'src'},'src');
2331: }
2332: }
2333: if (lc($tagname) eq 'link') {
2334: if (lc($attr->{'rel'}) eq 'stylesheet') {
2335: &add_filetype($allfiles,$attr->{'href'},'href');
2336: }
2337: }
1.640 albertel 2338: if (lc($tagname) eq 'object' ||
2339: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2340: foreach my $item (keys(%javafiles)) {
2341: $javafiles{$item} = '';
2342: }
2343: }
2344: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2345: my $name = lc($attr->{'name'});
2346: foreach my $item (keys(%javafiles)) {
2347: if ($name eq $item) {
2348: $javafiles{$item} = $attr->{'value'};
2349: last;
2350: }
2351: }
2352: foreach my $item (keys(%mediafiles)) {
2353: if ($name eq $item) {
2354: &add_filetype($allfiles, $attr->{'value'}, 'value');
2355: last;
2356: }
2357: }
2358: }
2359: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2360: foreach my $item (keys(%javafiles)) {
2361: if ($attr->{$item}) {
2362: $javafiles{$item} = $attr->{$item};
2363: last;
2364: }
2365: }
2366: foreach my $item (keys(%mediafiles)) {
2367: if ($attr->{$item}) {
2368: &add_filetype($allfiles,$attr->{$item},$item);
2369: last;
2370: }
2371: }
2372: }
2373: } elsif ($t->[0] eq 'E') {
2374: my ($tagname) = ($t->[1]);
2375: if ($javafiles{'codebase'} ne '') {
2376: $javafiles{'codebase'} .= '/';
2377: }
2378: if (lc($tagname) eq 'applet' ||
2379: lc($tagname) eq 'object' ||
2380: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2381: ) {
2382: foreach my $item (keys(%javafiles)) {
2383: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2384: my $file=$javafiles{'codebase'}.$javafiles{$item};
2385: &add_filetype($allfiles,$file,$item);
2386: }
2387: }
2388: }
2389: pop @state;
2390: }
2391: }
1.637 raeburn 2392: return 'ok';
2393: }
2394:
1.639 albertel 2395: sub add_filetype {
2396: my ($allfiles,$file,$type)=@_;
2397: if (exists($allfiles->{$file})) {
2398: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2399: push(@{$allfiles->{$file}}, &escape($type));
2400: }
2401: } else {
2402: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2403: }
2404: }
2405:
1.493 albertel 2406: sub removeuploadedurl {
1.984 neumanie 2407: my ($url)=@_;
2408: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2409: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2410: }
2411:
2412: sub removeuserfile {
2413: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 2414: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2415: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 2416: if ($result eq 'ok') {
1.798 raeburn 2417: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2418: my $metafile = $fname.'.meta';
2419: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2420: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 2421: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2422: my $sqlresult =
1.823 albertel 2423: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2424: 'portfolio_metadata',$group,
2425: 'delete');
1.798 raeburn 2426: }
2427: }
2428: return $result;
1.257 www 2429: }
1.15 www 2430:
1.530 albertel 2431: sub mkdiruserfile {
2432: my ($docuname,$docudom,$dir)=@_;
2433: my $home=&homeserver($docuname,$docudom);
2434: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2435: }
2436:
1.531 albertel 2437: sub renameuserfile {
2438: my ($docuname,$docudom,$old,$new)=@_;
2439: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2440: my $result = &reply("renameuserfile:$docudom:$docuname:".
2441: &escape("$old").':'.&escape("$new"),$home);
2442: if ($result eq 'ok') {
2443: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2444: my $oldmeta = $old.'.meta';
2445: my $newmeta = $new.'.meta';
2446: my $metaresult =
2447: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2448: my $url = "/uploaded/$docudom/$docuname/$old";
2449: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2450: my $sqlresult =
1.823 albertel 2451: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2452: 'portfolio_metadata',$group,
2453: 'delete');
1.798 raeburn 2454: }
2455: }
2456: return $result;
1.531 albertel 2457: }
2458:
1.14 www 2459: # ------------------------------------------------------------------------- Log
2460:
2461: sub log {
2462: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2463: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2464: }
2465:
2466: # ------------------------------------------------------------------ Course Log
1.352 www 2467: #
2468: # This routine flushes several buffers of non-mission-critical nature
2469: #
1.157 www 2470:
2471: sub flushcourselogs {
1.352 www 2472: &logthis('Flushing log buffers');
2473: #
2474: # course logs
2475: # This is a log of all transactions in a course, which can be used
2476: # for data mining purposes
2477: #
2478: # It also collects the courseid database, which lists last transaction
2479: # times and course titles for all courseids
2480: #
2481: my %courseidbuffer=();
1.921 raeburn 2482: foreach my $crsid (keys(%courselogs)) {
1.352 www 2483: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2484: &escape($courselogs{$crsid}),
2485: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2486: delete $courselogs{$crsid};
2487: } else {
2488: &logthis('Failed to flush log buffer for '.$crsid);
2489: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2490: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2491: " exceeded maximum size, deleting.</font>");
2492: delete $courselogs{$crsid};
2493: }
1.352 www 2494: }
1.920 raeburn 2495: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2496: 'description' => $coursedescrbuf{$crsid},
2497: 'inst_code' => $courseinstcodebuf{$crsid},
2498: 'type' => $coursetypebuf{$crsid},
2499: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2500: };
1.191 harris41 2501: }
1.352 www 2502: #
2503: # Write course id database (reverse lookup) to homeserver of courses
2504: # Is used in pickcourse
2505: #
1.840 albertel 2506: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2507: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2508: $courseidbuffer{$crs_home},
2509: $crs_home,'timeonly');
1.352 www 2510: }
2511: #
2512: # File accesses
2513: # Writes to the dynamic metadata of resources to get hit counts, etc.
2514: #
1.449 matthew 2515: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2516: if ($entry =~ /___count$/) {
2517: my ($dom,$name);
1.807 albertel 2518: ($dom,$name,undef)=
1.811 albertel 2519: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2520: if (! defined($dom) || $dom eq '' ||
2521: ! defined($name) || $name eq '') {
1.620 albertel 2522: my $cid = $env{'request.course.id'};
2523: $dom = $env{'request.'.$cid.'.domain'};
2524: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2525: }
1.450 matthew 2526: my $value = $accesshash{$entry};
2527: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2528: my %temphash=($url => $value);
1.449 matthew 2529: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2530: if ($result eq 'ok') {
2531: delete $accesshash{$entry};
2532: } elsif ($result eq 'unknown_cmd') {
2533: # Target server has old code running on it.
1.450 matthew 2534: my %temphash=($entry => $value);
1.449 matthew 2535: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2536: delete $accesshash{$entry};
2537: }
2538: }
2539: } else {
1.811 albertel 2540: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2541: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2542: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2543: delete $accesshash{$entry};
2544: }
1.185 www 2545: }
1.191 harris41 2546: }
1.352 www 2547: #
2548: # Roles
2549: # Reverse lookup of user roles for course faculty/staff and co-authorship
2550: #
1.800 albertel 2551: foreach my $entry (keys(%userrolehash)) {
1.351 www 2552: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2553: split(/\:/,$entry);
2554: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2555: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2556: $rudom,$runame) eq 'ok') {
2557: delete $userrolehash{$entry};
2558: }
2559: }
1.662 raeburn 2560: #
2561: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2562: #
2563: my %domrolebuffer = ();
1.1000 raeburn 2564: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 2565: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2566: if ($domrolebuffer{$rudom}) {
2567: $domrolebuffer{$rudom}.='&'.&escape($entry).
2568: '='.&escape($domainrolehash{$entry});
2569: } else {
2570: $domrolebuffer{$rudom}.=&escape($entry).
2571: '='.&escape($domainrolehash{$entry});
2572: }
2573: delete $domainrolehash{$entry};
2574: }
2575: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2576: my %servers = &get_servers($dom,'library');
2577: foreach my $tryserver (keys(%servers)) {
2578: unless (&reply('domroleput:'.$dom.':'.
2579: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2580: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2581: }
1.662 raeburn 2582: }
2583: }
1.186 www 2584: $dumpcount++;
1.157 www 2585: }
2586:
2587: sub courselog {
2588: my $what=shift;
1.158 www 2589: $what=time.':'.$what;
1.620 albertel 2590: unless ($env{'request.course.id'}) { return ''; }
2591: $coursedombuf{$env{'request.course.id'}}=
2592: $env{'course.'.$env{'request.course.id'}.'.domain'};
2593: $coursenumbuf{$env{'request.course.id'}}=
2594: $env{'course.'.$env{'request.course.id'}.'.num'};
2595: $coursehombuf{$env{'request.course.id'}}=
2596: $env{'course.'.$env{'request.course.id'}.'.home'};
2597: $coursedescrbuf{$env{'request.course.id'}}=
2598: $env{'course.'.$env{'request.course.id'}.'.description'};
2599: $courseinstcodebuf{$env{'request.course.id'}}=
2600: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2601: $courseownerbuf{$env{'request.course.id'}}=
2602: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2603: $coursetypebuf{$env{'request.course.id'}}=
2604: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2605: if (defined $courselogs{$env{'request.course.id'}}) {
2606: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2607: } else {
1.620 albertel 2608: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2609: }
1.620 albertel 2610: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2611: &flushcourselogs();
2612: }
1.158 www 2613: }
2614:
2615: sub courseacclog {
2616: my $fnsymb=shift;
1.620 albertel 2617: unless ($env{'request.course.id'}) { return ''; }
2618: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2619: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2620: $what.=':POST';
1.583 matthew 2621: # FIXME: Probably ought to escape things....
1.800 albertel 2622: foreach my $key (keys(%env)) {
2623: if ($key=~/^form\.(.*)/) {
1.975 raeburn 2624: my $formitem = $1;
2625: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
2626: $what.=':'.$formitem.'='.$env{$key};
2627: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
2628: $what.=':'.$formitem.'='.$env{$key};
2629: }
1.158 www 2630: }
1.191 harris41 2631: }
1.583 matthew 2632: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2633: # FIXME: We should not be depending on a form parameter that someone
2634: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2635: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2636: $what.= ':POST';
2637: # FIXME: Probably ought to escape things....
2638: foreach my $element ('courseexp','crsfulltext','crsrelated',
2639: 'crsdiscuss') {
1.620 albertel 2640: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2641: }
2642: }
1.158 www 2643: }
2644: &courselog($what);
1.149 www 2645: }
2646:
1.185 www 2647: sub countacc {
2648: my $url=&declutter(shift);
1.458 matthew 2649: return if (! defined($url) || $url eq '');
1.620 albertel 2650: unless ($env{'request.course.id'}) { return ''; }
2651: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2652: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2653: $accesshash{$key}++;
1.185 www 2654: }
1.349 www 2655:
1.361 www 2656: sub linklog {
2657: my ($from,$to)=@_;
2658: $from=&declutter($from);
2659: $to=&declutter($to);
2660: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2661: $accesshash{$to.'___'.$from.'___goto'}=1;
2662: }
2663:
1.349 www 2664: sub userrolelog {
2665: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2666: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2667: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2668: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2669: ($trole=~/^ta/)) {
1.350 www 2670: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2671: $userrolehash
2672: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2673: =$tend.':'.$tstart;
1.662 raeburn 2674: }
1.898 albertel 2675: if (($env{'request.role'} =~ /dc\./) &&
2676: (($trole=~/^au/) || ($trole=~/^in/) ||
2677: ($trole=~/^cc/) || ($trole=~/^ep/) ||
2678: ($trole=~/^cr/) || ($trole=~/^ta/))) {
2679: $userrolehash
2680: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2681: =$tend.':'.$tstart;
2682: }
1.662 raeburn 2683: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2684: ($trole=~/^li/) || ($trole=~/^li/) ||
2685: ($trole=~/^au/) || ($trole=~/^dg/) ||
2686: ($trole=~/^sc/)) {
2687: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2688: $domainrolehash
2689: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2690: = $tend.':'.$tstart;
2691: }
1.351 www 2692: }
2693:
1.957 raeburn 2694: sub courserolelog {
2695: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
2696: if (($trole eq 'cc') || ($trole eq 'in') ||
2697: ($trole eq 'ep') || ($trole eq 'ad') ||
2698: ($trole eq 'ta') || ($trole eq 'st') ||
2699: ($trole=~/^cr/) || ($trole eq 'gr')) {
2700: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
2701: my $cdom = $1;
2702: my $cnum = $2;
2703: my $sec = $3;
2704: my $namespace = 'rolelog';
2705: my %storehash = (
2706: role => $trole,
2707: start => $tstart,
2708: end => $tend,
2709: selfenroll => $selfenroll,
2710: context => $context,
2711: );
2712: if ($trole eq 'gr') {
2713: $namespace = 'groupslog';
2714: $storehash{'group'} = $sec;
2715: } else {
2716: $storehash{'section'} = $sec;
2717: }
2718: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
1.996 raeburn 2719: if (($trole ne 'st') || ($sec ne '')) {
2720: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
2721: }
1.957 raeburn 2722: }
2723: }
2724: return;
2725: }
2726:
1.351 www 2727: sub get_course_adv_roles {
1.948 raeburn 2728: my ($cid,$codes) = @_;
1.620 albertel 2729: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2730: my %coursehash=&coursedescription($cid);
1.988 raeburn 2731: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 2732: my %nothide=();
1.800 albertel 2733: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 2734: if ($user !~ /:/) {
2735: $nothide{join(':',split(/[\@]/,$user))}=1;
2736: } else {
2737: $nothide{$user}=1;
2738: }
1.470 www 2739: }
1.351 www 2740: my %returnhash=();
2741: my %dumphash=
2742: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2743: my $now=time;
1.997 raeburn 2744: my %privileged;
1.1000 raeburn 2745: foreach my $entry (keys(%dumphash)) {
1.800 albertel 2746: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2747: if (($tstart) && ($tstart<0)) { next; }
2748: if (($tend) && ($tend<$now)) { next; }
2749: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2750: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2751: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 2752: unless (ref($privileged{$domain}) eq 'HASH') {
2753: my %dompersonnel =
1.998 raeburn 2754: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 2755: $privileged{$domain} = {};
2756: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 2757: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 2758: foreach my $user (keys(%{$dompersonnel{$server}})) {
2759: my ($trole,$uname,$udom) = split(/:/,$user);
2760: $privileged{$udom}{$uname} = 1;
2761: }
2762: }
2763: }
2764: }
2765: if ((exists($privileged{$domain}{$username})) &&
2766: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2767: if ($role eq 'cr') { next; }
1.948 raeburn 2768: if ($codes) {
2769: if ($section) { $role .= ':'.$section; }
2770: if ($returnhash{$role}) {
2771: $returnhash{$role}.=','.$username.':'.$domain;
2772: } else {
2773: $returnhash{$role}=$username.':'.$domain;
2774: }
1.351 www 2775: } else {
1.988 raeburn 2776: my $key=&plaintext($role,$crstype);
1.973 bisitz 2777: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 2778: if ($returnhash{$key}) {
2779: $returnhash{$key}.=','.$username.':'.$domain;
2780: } else {
2781: $returnhash{$key}=$username.':'.$domain;
2782: }
1.351 www 2783: }
1.948 raeburn 2784: }
1.400 www 2785: return %returnhash;
2786: }
2787:
2788: sub get_my_roles {
1.937 raeburn 2789: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 2790: unless (defined($uname)) { $uname=$env{'user.name'}; }
2791: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 2792: my (%dumphash,%nothide);
1.858 raeburn 2793: if ($context eq 'userroles') {
2794: %dumphash = &dump('roles',$udom,$uname);
2795: } else {
2796: %dumphash=
1.400 www 2797: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 2798: if ($hidepriv) {
2799: my %coursehash=&coursedescription($udom.'_'.$uname);
2800: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2801: if ($user !~ /:/) {
2802: $nothide{join(':',split(/[\@]/,$user))} = 1;
2803: } else {
2804: $nothide{$user} = 1;
2805: }
2806: }
2807: }
1.858 raeburn 2808: }
1.400 www 2809: my %returnhash=();
2810: my $now=time;
1.999 raeburn 2811: my %privileged;
1.800 albertel 2812: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2813: my ($role,$tend,$tstart);
2814: if ($context eq 'userroles') {
2815: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2816: } else {
2817: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2818: }
1.400 www 2819: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2820: my $status = 'active';
1.939 raeburn 2821: if (($tend) && ($tend<=$now)) {
1.832 raeburn 2822: $status = 'previous';
2823: }
2824: if (($tstart) && ($now<$tstart)) {
2825: $status = 'future';
2826: }
2827: if (ref($types) eq 'ARRAY') {
2828: if (!grep(/^\Q$status\E$/,@{$types})) {
2829: next;
2830: }
2831: } else {
2832: if ($status ne 'active') {
2833: next;
2834: }
2835: }
1.867 raeburn 2836: my ($rolecode,$username,$domain,$section,$area);
2837: if ($context eq 'userroles') {
2838: ($area,$rolecode) = split(/_/,$entry);
2839: (undef,$domain,$username,$section) = split(/\//,$area);
2840: } else {
2841: ($role,$username,$domain,$section) = split(/\:/,$entry);
2842: }
1.832 raeburn 2843: if (ref($roledoms) eq 'ARRAY') {
2844: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2845: next;
2846: }
2847: }
2848: if (ref($roles) eq 'ARRAY') {
2849: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 2850: if ($role =~ /^cr\//) {
2851: if (!grep(/^cr$/,@{$roles})) {
2852: next;
2853: }
2854: } else {
2855: next;
2856: }
1.832 raeburn 2857: }
1.867 raeburn 2858: }
1.937 raeburn 2859: if ($hidepriv) {
1.999 raeburn 2860: if ($context eq 'userroles') {
2861: if ((&privileged($username,$domain)) &&
2862: (!$nothide{$username.':'.$domain})) {
2863: next;
2864: }
2865: } else {
2866: unless (ref($privileged{$domain}) eq 'HASH') {
2867: my %dompersonnel =
2868: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
2869: $privileged{$domain} = {};
2870: if (keys(%dompersonnel)) {
2871: foreach my $server (keys(%dompersonnel)) {
2872: if (ref($dompersonnel{$server}) eq 'HASH') {
2873: foreach my $user (keys(%{$dompersonnel{$server}})) {
2874: my ($trole,$uname,$udom) = split(/:/,$user);
2875: $privileged{$udom}{$uname} = $trole;
2876: }
2877: }
2878: }
2879: }
2880: }
2881: if (exists($privileged{$domain}{$username})) {
2882: if (!$nothide{$username.':'.$domain}) {
2883: next;
2884: }
2885: }
1.937 raeburn 2886: }
2887: }
1.933 raeburn 2888: if ($withsec) {
2889: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
2890: $tstart.':'.$tend;
2891: } else {
2892: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
2893: }
1.832 raeburn 2894: }
1.373 www 2895: return %returnhash;
1.399 www 2896: }
2897:
2898: # ----------------------------------------------------- Frontpage Announcements
2899: #
2900: #
2901:
2902: sub postannounce {
2903: my ($server,$text)=@_;
1.844 albertel 2904: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 2905: unless ($text=~/\w/) { $text=''; }
2906: return &reply('setannounce:'.&escape($text),$server);
2907: }
2908:
2909: sub getannounce {
1.448 albertel 2910:
2911: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 2912: my $announcement='';
1.800 albertel 2913: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 2914: close($fh);
1.399 www 2915: if ($announcement=~/\w/) {
2916: return
2917: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 2918: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 2919: } else {
2920: return '';
2921: }
2922: } else {
2923: return '';
2924: }
1.351 www 2925: }
1.353 www 2926:
2927: # ---------------------------------------------------------- Course ID routines
2928: # Deal with domain's nohist_courseid.db files
2929: #
2930:
2931: sub courseidput {
1.921 raeburn 2932: my ($domain,$storehash,$coursehome,$caller) = @_;
2933: my $outcome;
2934: if ($caller eq 'timeonly') {
2935: my $cids = '';
2936: foreach my $item (keys(%$storehash)) {
2937: $cids.=&escape($item).'&';
2938: }
2939: $cids=~s/\&$//;
2940: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
2941: $coursehome);
2942: } else {
2943: my $items = '';
2944: foreach my $item (keys(%$storehash)) {
2945: $items.= &escape($item).'='.
2946: &freeze_escape($$storehash{$item}).'&';
2947: }
2948: $items=~s/\&$//;
2949: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
2950: $coursehome);
1.918 raeburn 2951: }
2952: if ($outcome eq 'unknown_cmd') {
2953: my $what;
2954: foreach my $cid (keys(%$storehash)) {
2955: $what .= &escape($cid).'=';
1.921 raeburn 2956: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 2957: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 2958: }
2959: $what =~ s/\:$/&/;
2960: }
2961: $what =~ s/\&$//;
2962: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
2963: } else {
2964: return $outcome;
2965: }
1.353 www 2966: }
2967:
2968: sub courseiddump {
1.921 raeburn 2969: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 2970: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.962 raeburn 2971: $selfenrollonly,$catfilter,$showhidden,$caller)=@_;
1.918 raeburn 2972: my $as_hash = 1;
2973: my %returnhash;
2974: if (!$domfilter) { $domfilter=''; }
1.845 albertel 2975: my %libserv = &all_library();
2976: foreach my $tryserver (keys(%libserv)) {
2977: if ( ( $hostidflag == 1
2978: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
2979: || (!defined($hostidflag)) ) {
2980:
1.918 raeburn 2981: if (($domfilter eq '') ||
2982: (&host_domain($tryserver) eq $domfilter)) {
2983: my $rep =
2984: &reply('courseiddump:'.&host_domain($tryserver).':'.
2985: $sincefilter.':'.&escape($descfilter).':'.
2986: &escape($instcodefilter).':'.&escape($ownerfilter).
2987: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 2988: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 2989: &escape($selfenrollonly).':'.&escape($catfilter).':'.
2990: $showhidden.':'.$caller,$tryserver);
1.918 raeburn 2991: my @pairs=split(/\&/,$rep);
2992: foreach my $item (@pairs) {
2993: my ($key,$value)=split(/\=/,$item,2);
2994: $key = &unescape($key);
2995: next if ($key =~ /^error: 2 /);
2996: my $result = &thaw_unescape($value);
2997: if (ref($result) eq 'HASH') {
2998: $returnhash{$key}=$result;
2999: } else {
1.921 raeburn 3000: my @responses = split(/:/,$value);
3001: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3002: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3003: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3004: }
3005: }
1.353 www 3006: }
3007: }
3008: }
3009: }
3010: return %returnhash;
3011: }
3012:
1.658 raeburn 3013: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3014:
3015: sub dcmailput {
1.685 raeburn 3016: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3017: my $status = &Apache::lonnet::critical(
1.740 www 3018: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3019: &escape($message),$server);
1.662 raeburn 3020: return $status;
3021: }
3022:
1.658 raeburn 3023: sub dcmaildump {
3024: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3025: my %returnhash=();
1.846 albertel 3026:
3027: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3028: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3029: &escape($enddate).':';
3030: my @esc_senders=map { &escape($_)} @$senders;
3031: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3032: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3033: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3034: if (($key) && ($value)) {
3035: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3036: }
3037: }
3038: }
3039: return %returnhash;
3040: }
1.662 raeburn 3041: # ---------------------------------------------------------- Domain roles
3042:
3043: sub get_domain_roles {
3044: my ($dom,$roles,$startdate,$enddate)=@_;
3045: if (undef($startdate) || $startdate eq '') {
3046: $startdate = '.';
3047: }
3048: if (undef($enddate) || $enddate eq '') {
3049: $enddate = '.';
3050: }
1.922 raeburn 3051: my $rolelist;
3052: if (ref($roles) eq 'ARRAY') {
3053: $rolelist = join(':',@{$roles});
3054: }
1.662 raeburn 3055: my %personnel = ();
1.841 albertel 3056:
3057: my %servers = &get_servers($dom,'library');
3058: foreach my $tryserver (keys(%servers)) {
3059: %{$personnel{$tryserver}}=();
3060: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3061: &escape($startdate).':'.
3062: &escape($enddate).':'.
3063: &escape($rolelist), $tryserver))) {
3064: my ($key,$value) = split(/\=/,$line,2);
3065: if (($key) && ($value)) {
3066: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3067: }
3068: }
1.662 raeburn 3069: }
3070: return %personnel;
3071: }
1.658 raeburn 3072:
1.149 www 3073: # ----------------------------------------------------------- Check out an item
3074:
1.504 albertel 3075: sub get_first_access {
3076: my ($type,$argsymb)=@_;
1.790 albertel 3077: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3078: if ($argsymb) { $symb=$argsymb; }
3079: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 3080: if ($type eq 'course') {
3081: $res='course';
3082: } elsif ($type eq 'map') {
1.588 albertel 3083: $res=&symbread($map);
3084: } else {
3085: $res=$symb;
3086: }
3087: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
3088: return $times{"$courseid\0$res"};
1.504 albertel 3089: }
3090:
3091: sub set_first_access {
3092: my ($type)=@_;
1.790 albertel 3093: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3094: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 3095: if ($type eq 'course') {
3096: $res='course';
3097: } elsif ($type eq 'map') {
1.588 albertel 3098: $res=&symbread($map);
3099: } else {
3100: $res=$symb;
3101: }
3102: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 3103: if (!$firstaccess) {
1.588 albertel 3104: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 3105: }
3106: return 'already_set';
1.504 albertel 3107: }
3108:
1.149 www 3109: sub checkout {
3110: my ($symb,$tuname,$tudom,$tcrsid)=@_;
3111: my $now=time;
3112: my $lonhost=$perlvar{'lonHostID'};
3113: my $infostr=&escape(
1.234 www 3114: 'CHECKOUTTOKEN&'.
1.149 www 3115: $tuname.'&'.
3116: $tudom.'&'.
3117: $tcrsid.'&'.
3118: $symb.'&'.
3119: $now.'&'.$ENV{'REMOTE_ADDR'});
3120: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 3121: if ($token=~/^error\:/) {
1.672 albertel 3122: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3123: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
3124: "</font>");
3125: return '';
3126: }
3127:
1.149 www 3128: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
3129: $token=~tr/a-z/A-Z/;
3130:
1.153 www 3131: my %infohash=('resource.0.outtoken' => $token,
3132: 'resource.0.checkouttime' => $now,
3133: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 3134:
3135: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3136: return '';
1.151 www 3137: } else {
1.672 albertel 3138: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3139: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
3140: "</font>");
1.149 www 3141: }
3142:
3143: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3144: &escape('Checkout '.$infostr.' - '.
3145: $token)) ne 'ok') {
3146: return '';
1.151 www 3147: } else {
1.672 albertel 3148: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3149: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
3150: "</font>");
1.149 www 3151: }
1.151 www 3152: return $token;
1.149 www 3153: }
3154:
3155: # ------------------------------------------------------------ Check in an item
3156:
3157: sub checkin {
3158: my $token=shift;
1.150 www 3159: my $now=time;
3160: my ($ta,$tb,$lonhost)=split(/\*/,$token);
3161: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 3162: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 3163: $dtoken=~s/\W/\_/g;
1.234 www 3164: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 3165: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
3166:
1.154 www 3167: unless (($tuname) && ($tudom)) {
3168: &logthis('Check in '.$token.' ('.$dtoken.') failed');
3169: return '';
3170: }
3171:
3172: unless (&allowed('mgr',$tcrsid)) {
3173: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 3174: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 3175: return '';
3176: }
3177:
1.153 www 3178: my %infohash=('resource.0.intoken' => $token,
3179: 'resource.0.checkintime' => $now,
3180: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 3181:
3182: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3183: return '';
3184: }
3185:
3186: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3187: &escape('Checkin - '.$token)) ne 'ok') {
3188: return '';
3189: }
3190:
3191: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 3192: }
3193:
3194: # --------------------------------------------- Set Expire Date for Spreadsheet
3195:
3196: sub expirespread {
3197: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 3198: my $cid=$env{'request.course.id'};
1.110 www 3199: if ($cid) {
3200: my $now=time;
3201: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3202: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3203: $env{'course.'.$cid.'.num'}.
1.110 www 3204: ':nohist_expirationdates:'.
3205: &escape($key).'='.$now,
1.620 albertel 3206: $env{'course.'.$cid.'.home'})
1.110 www 3207: }
3208: return 'ok';
1.14 www 3209: }
3210:
1.109 www 3211: # ----------------------------------------------------- Devalidate Spreadsheets
3212:
3213: sub devalidate {
1.325 www 3214: my ($symb,$uname,$udom)=@_;
1.620 albertel 3215: my $cid=$env{'request.course.id'};
1.109 www 3216: if ($cid) {
1.391 matthew 3217: # delete the stored spreadsheets for
3218: # - the student level sheet of this user in course's homespace
3219: # - the assessment level sheet for this resource
3220: # for this user in user's homespace
1.553 albertel 3221: # - current conditional state info
1.325 www 3222: my $key=$uname.':'.$udom.':';
1.109 www 3223: my $status=
1.299 matthew 3224: &del('nohist_calculatedsheets',
1.391 matthew 3225: [$key.'studentcalc:'],
1.620 albertel 3226: $env{'course.'.$cid.'.domain'},
3227: $env{'course.'.$cid.'.num'})
1.133 albertel 3228: .' '.
3229: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3230: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3231: unless ($status eq 'ok ok') {
3232: &logthis('Could not devalidate spreadsheet '.
1.325 www 3233: $uname.' at '.$udom.' for '.
1.109 www 3234: $symb.': '.$status);
1.133 albertel 3235: }
1.553 albertel 3236: &delenv('user.state.'.$cid);
1.109 www 3237: }
3238: }
3239:
1.265 albertel 3240: sub get_scalar {
3241: my ($string,$end) = @_;
3242: my $value;
3243: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3244: $value = $1;
3245: } elsif ($$string =~ s/^([^&]*?)&//) {
3246: $value = $1;
3247: }
3248: return &unescape($value);
3249: }
3250:
3251: sub array2str {
3252: my (@array) = @_;
3253: my $result=&arrayref2str(\@array);
3254: $result=~s/^__ARRAY_REF__//;
3255: $result=~s/__END_ARRAY_REF__$//;
3256: return $result;
3257: }
3258:
1.204 albertel 3259: sub arrayref2str {
3260: my ($arrayref) = @_;
1.265 albertel 3261: my $result='__ARRAY_REF__';
1.204 albertel 3262: foreach my $elem (@$arrayref) {
1.265 albertel 3263: if(ref($elem) eq 'ARRAY') {
3264: $result.=&arrayref2str($elem).'&';
3265: } elsif(ref($elem) eq 'HASH') {
3266: $result.=&hashref2str($elem).'&';
3267: } elsif(ref($elem)) {
3268: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3269: } else {
3270: $result.=&escape($elem).'&';
3271: }
3272: }
3273: $result=~s/\&$//;
1.265 albertel 3274: $result .= '__END_ARRAY_REF__';
1.204 albertel 3275: return $result;
3276: }
3277:
1.168 albertel 3278: sub hash2str {
1.204 albertel 3279: my (%hash) = @_;
3280: my $result=&hashref2str(\%hash);
1.265 albertel 3281: $result=~s/^__HASH_REF__//;
3282: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3283: return $result;
3284: }
3285:
3286: sub hashref2str {
3287: my ($hashref)=@_;
1.265 albertel 3288: my $result='__HASH_REF__';
1.800 albertel 3289: foreach my $key (sort(keys(%$hashref))) {
3290: if (ref($key) eq 'ARRAY') {
3291: $result.=&arrayref2str($key).'=';
3292: } elsif (ref($key) eq 'HASH') {
3293: $result.=&hashref2str($key).'=';
3294: } elsif (ref($key)) {
1.265 albertel 3295: $result.='=';
1.800 albertel 3296: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3297: } else {
1.800 albertel 3298: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3299: }
3300:
1.800 albertel 3301: if(ref($hashref->{$key}) eq 'ARRAY') {
3302: $result.=&arrayref2str($hashref->{$key}).'&';
3303: } elsif(ref($hashref->{$key}) eq 'HASH') {
3304: $result.=&hashref2str($hashref->{$key}).'&';
3305: } elsif(ref($hashref->{$key})) {
1.265 albertel 3306: $result.='&';
1.800 albertel 3307: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3308: } else {
1.800 albertel 3309: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3310: }
3311: }
1.168 albertel 3312: $result=~s/\&$//;
1.265 albertel 3313: $result .= '__END_HASH_REF__';
1.168 albertel 3314: return $result;
3315: }
3316:
3317: sub str2hash {
1.265 albertel 3318: my ($string)=@_;
3319: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3320: return %$hash;
3321: }
3322:
3323: sub str2hashref {
1.168 albertel 3324: my ($string) = @_;
1.265 albertel 3325:
3326: my %hash;
3327:
3328: if($string !~ /^__HASH_REF__/) {
3329: if (! ($string eq '' || !defined($string))) {
3330: $hash{'error'}='Not hash reference';
3331: }
3332: return (\%hash, $string);
3333: }
3334:
3335: $string =~ s/^__HASH_REF__//;
3336:
3337: while($string !~ /^__END_HASH_REF__/) {
3338: #key
3339: my $key='';
3340: if($string =~ /^__HASH_REF__/) {
3341: ($key, $string)=&str2hashref($string);
3342: if(defined($key->{'error'})) {
3343: $hash{'error'}='Bad data';
3344: return (\%hash, $string);
3345: }
3346: } elsif($string =~ /^__ARRAY_REF__/) {
3347: ($key, $string)=&str2arrayref($string);
3348: if($key->[0] eq 'Array reference error') {
3349: $hash{'error'}='Bad data';
3350: return (\%hash, $string);
3351: }
3352: } else {
3353: $string =~ s/^(.*?)=//;
1.267 albertel 3354: $key=&unescape($1);
1.265 albertel 3355: }
3356: $string =~ s/^=//;
3357:
3358: #value
3359: my $value='';
3360: if($string =~ /^__HASH_REF__/) {
3361: ($value, $string)=&str2hashref($string);
3362: if(defined($value->{'error'})) {
3363: $hash{'error'}='Bad data';
3364: return (\%hash, $string);
3365: }
3366: } elsif($string =~ /^__ARRAY_REF__/) {
3367: ($value, $string)=&str2arrayref($string);
3368: if($value->[0] eq 'Array reference error') {
3369: $hash{'error'}='Bad data';
3370: return (\%hash, $string);
3371: }
3372: } else {
3373: $value=&get_scalar(\$string,'__END_HASH_REF__');
3374: }
3375: $string =~ s/^&//;
3376:
3377: $hash{$key}=$value;
1.204 albertel 3378: }
1.265 albertel 3379:
3380: $string =~ s/^__END_HASH_REF__//;
3381:
3382: return (\%hash, $string);
1.204 albertel 3383: }
3384:
3385: sub str2array {
1.265 albertel 3386: my ($string)=@_;
3387: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3388: return @$array;
3389: }
3390:
3391: sub str2arrayref {
1.204 albertel 3392: my ($string) = @_;
1.265 albertel 3393: my @array;
3394:
3395: if($string !~ /^__ARRAY_REF__/) {
3396: if (! ($string eq '' || !defined($string))) {
3397: $array[0]='Array reference error';
3398: }
3399: return (\@array, $string);
3400: }
3401:
3402: $string =~ s/^__ARRAY_REF__//;
3403:
3404: while($string !~ /^__END_ARRAY_REF__/) {
3405: my $value='';
3406: if($string =~ /^__HASH_REF__/) {
3407: ($value, $string)=&str2hashref($string);
3408: if(defined($value->{'error'})) {
3409: $array[0] ='Array reference error';
3410: return (\@array, $string);
3411: }
3412: } elsif($string =~ /^__ARRAY_REF__/) {
3413: ($value, $string)=&str2arrayref($string);
3414: if($value->[0] eq 'Array reference error') {
3415: $array[0] ='Array reference error';
3416: return (\@array, $string);
3417: }
3418: } else {
3419: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3420: }
3421: $string =~ s/^&//;
3422:
3423: push(@array, $value);
1.191 harris41 3424: }
1.265 albertel 3425:
3426: $string =~ s/^__END_ARRAY_REF__//;
3427:
3428: return (\@array, $string);
1.168 albertel 3429: }
3430:
1.167 albertel 3431: # -------------------------------------------------------------------Temp Store
3432:
1.168 albertel 3433: sub tmpreset {
3434: my ($symb,$namespace,$domain,$stuname) = @_;
3435: if (!$symb) {
3436: $symb=&symbread();
1.620 albertel 3437: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3438: }
3439: $symb=escape($symb);
3440:
1.620 albertel 3441: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3442: $namespace=~s/\//\_/g;
3443: $namespace=~s/\W//g;
3444:
1.620 albertel 3445: if (!$domain) { $domain=$env{'user.domain'}; }
3446: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3447: if ($domain eq 'public' && $stuname eq 'public') {
3448: $stuname=$ENV{'REMOTE_ADDR'};
3449: }
1.168 albertel 3450: my $path=$perlvar{'lonDaemons'}.'/tmp';
3451: my %hash;
3452: if (tie(%hash,'GDBM_File',
3453: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3454: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 3455: foreach my $key (keys(%hash)) {
1.180 albertel 3456: if ($key=~ /:$symb/) {
1.168 albertel 3457: delete($hash{$key});
3458: }
3459: }
3460: }
3461: }
3462:
1.167 albertel 3463: sub tmpstore {
1.168 albertel 3464: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3465:
3466: if (!$symb) {
3467: $symb=&symbread();
1.620 albertel 3468: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3469: }
3470: $symb=escape($symb);
3471:
3472: if (!$namespace) {
3473: # I don't think we would ever want to store this for a course.
3474: # it seems this will only be used if we don't have a course.
1.620 albertel 3475: #$namespace=$env{'request.course.id'};
1.168 albertel 3476: #if (!$namespace) {
1.620 albertel 3477: $namespace=$env{'request.state'};
1.168 albertel 3478: #}
3479: }
3480: $namespace=~s/\//\_/g;
3481: $namespace=~s/\W//g;
1.620 albertel 3482: if (!$domain) { $domain=$env{'user.domain'}; }
3483: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3484: if ($domain eq 'public' && $stuname eq 'public') {
3485: $stuname=$ENV{'REMOTE_ADDR'};
3486: }
1.168 albertel 3487: my $now=time;
3488: my %hash;
3489: my $path=$perlvar{'lonDaemons'}.'/tmp';
3490: if (tie(%hash,'GDBM_File',
3491: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3492: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3493: $hash{"version:$symb"}++;
3494: my $version=$hash{"version:$symb"};
3495: my $allkeys='';
3496: foreach my $key (keys(%$storehash)) {
3497: $allkeys.=$key.':';
1.591 albertel 3498: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3499: }
3500: $hash{"$version:$symb:timestamp"}=$now;
3501: $allkeys.='timestamp';
3502: $hash{"$version:keys:$symb"}=$allkeys;
3503: if (untie(%hash)) {
3504: return 'ok';
3505: } else {
3506: return "error:$!";
3507: }
3508: } else {
3509: return "error:$!";
3510: }
3511: }
1.167 albertel 3512:
1.168 albertel 3513: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3514:
1.168 albertel 3515: sub tmprestore {
3516: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3517:
1.168 albertel 3518: if (!$symb) {
3519: $symb=&symbread();
1.620 albertel 3520: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3521: }
3522: $symb=escape($symb);
3523:
1.620 albertel 3524: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3525:
1.620 albertel 3526: if (!$domain) { $domain=$env{'user.domain'}; }
3527: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3528: if ($domain eq 'public' && $stuname eq 'public') {
3529: $stuname=$ENV{'REMOTE_ADDR'};
3530: }
1.168 albertel 3531: my %returnhash;
3532: $namespace=~s/\//\_/g;
3533: $namespace=~s/\W//g;
3534: my %hash;
3535: my $path=$perlvar{'lonDaemons'}.'/tmp';
3536: if (tie(%hash,'GDBM_File',
3537: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3538: &GDBM_READER(),0640)) {
1.168 albertel 3539: my $version=$hash{"version:$symb"};
3540: $returnhash{'version'}=$version;
3541: my $scope;
3542: for ($scope=1;$scope<=$version;$scope++) {
3543: my $vkeys=$hash{"$scope:keys:$symb"};
3544: my @keys=split(/:/,$vkeys);
3545: my $key;
3546: $returnhash{"$scope:keys"}=$vkeys;
3547: foreach $key (@keys) {
1.591 albertel 3548: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3549: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3550: }
3551: }
1.168 albertel 3552: if (!(untie(%hash))) {
3553: return "error:$!";
3554: }
3555: } else {
3556: return "error:$!";
3557: }
3558: return %returnhash;
1.167 albertel 3559: }
3560:
1.9 www 3561: # ----------------------------------------------------------------------- Store
3562:
3563: sub store {
1.124 www 3564: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3565: my $home='';
3566:
1.168 albertel 3567: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3568:
1.213 www 3569: $symb=&symbclean($symb);
1.122 albertel 3570: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3571:
1.620 albertel 3572: if (!$domain) { $domain=$env{'user.domain'}; }
3573: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3574:
3575: &devalidate($symb,$stuname,$domain);
1.109 www 3576:
3577: $symb=escape($symb);
1.187 www 3578: if (!$namespace) {
1.620 albertel 3579: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3580: return '';
3581: }
3582: }
1.620 albertel 3583: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3584:
3585: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3586: $$storehash{'host'}=$perlvar{'lonHostID'};
3587:
1.12 www 3588: my $namevalue='';
1.800 albertel 3589: foreach my $key (keys(%$storehash)) {
3590: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3591: }
1.12 www 3592: $namevalue=~s/\&$//;
1.187 www 3593: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3594: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3595: }
3596:
1.47 www 3597: # -------------------------------------------------------------- Critical Store
3598:
3599: sub cstore {
1.124 www 3600: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3601: my $home='';
3602:
1.168 albertel 3603: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3604:
1.213 www 3605: $symb=&symbclean($symb);
1.122 albertel 3606: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3607:
1.620 albertel 3608: if (!$domain) { $domain=$env{'user.domain'}; }
3609: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3610:
3611: &devalidate($symb,$stuname,$domain);
1.109 www 3612:
3613: $symb=escape($symb);
1.187 www 3614: if (!$namespace) {
1.620 albertel 3615: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3616: return '';
3617: }
3618: }
1.620 albertel 3619: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3620:
3621: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3622: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3623:
1.47 www 3624: my $namevalue='';
1.800 albertel 3625: foreach my $key (keys(%$storehash)) {
3626: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3627: }
1.47 www 3628: $namevalue=~s/\&$//;
1.187 www 3629: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3630: return critical
3631: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3632: }
3633:
1.9 www 3634: # --------------------------------------------------------------------- Restore
3635:
3636: sub restore {
1.124 www 3637: my ($symb,$namespace,$domain,$stuname) = @_;
3638: my $home='';
3639:
1.168 albertel 3640: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3641:
1.122 albertel 3642: if (!$symb) {
3643: unless ($symb=escape(&symbread())) { return ''; }
3644: } else {
1.213 www 3645: $symb=&escape(&symbclean($symb));
1.122 albertel 3646: }
1.188 www 3647: if (!$namespace) {
1.620 albertel 3648: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3649: return '';
3650: }
3651: }
1.620 albertel 3652: if (!$domain) { $domain=$env{'user.domain'}; }
3653: if (!$stuname) { $stuname=$env{'user.name'}; }
3654: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3655: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3656:
1.12 www 3657: my %returnhash=();
1.800 albertel 3658: foreach my $line (split(/\&/,$answer)) {
3659: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3660: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3661: }
1.75 www 3662: my $version;
3663: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3664: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3665: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3666: }
1.75 www 3667: }
1.13 www 3668: return %returnhash;
1.34 www 3669: }
3670:
3671: # ---------------------------------------------------------- Course Description
3672:
3673: sub coursedescription {
1.731 albertel 3674: my ($courseid,$args)=@_;
1.34 www 3675: $courseid=~s/^\///;
1.49 www 3676: $courseid=~s/\_/\//g;
1.34 www 3677: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3678: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3679: my $normalid=$cdomain.'_'.$cnum;
3680: # need to always cache even if we get errors otherwise we keep
3681: # trying and trying and trying to get the course description.
3682: my %envhash=();
3683: my %returnhash=();
1.731 albertel 3684:
3685: my $expiretime=600;
3686: if ($env{'request.course.id'} eq $normalid) {
3687: $expiretime=120;
3688: }
3689:
3690: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3691: if (!$args->{'freshen_cache'}
3692: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3693: foreach my $key (keys(%env)) {
3694: next if ($key !~ /^\Q$prefix\E(.*)/);
3695: my ($setting) = $1;
3696: $returnhash{$setting} = $env{$key};
3697: }
3698: return %returnhash;
3699: }
3700:
3701: # get the data agin
3702: if (!$args->{'one_time'}) {
3703: $envhash{'course.'.$normalid.'.last_cache'}=time;
3704: }
1.811 albertel 3705:
1.34 www 3706: if ($chome ne 'no_host') {
1.302 albertel 3707: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3708: if (!exists($returnhash{'con_lost'})) {
3709: $returnhash{'home'}= $chome;
3710: $returnhash{'domain'} = $cdomain;
3711: $returnhash{'num'} = $cnum;
1.741 raeburn 3712: if (!defined($returnhash{'type'})) {
3713: $returnhash{'type'} = 'Course';
3714: }
1.130 albertel 3715: while (my ($name,$value) = each %returnhash) {
1.53 www 3716: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3717: }
1.270 www 3718: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3719: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3720: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3721: $envhash{'course.'.$normalid.'.home'}=$chome;
3722: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3723: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3724: }
3725: }
1.731 albertel 3726: if (!$args->{'one_time'}) {
1.949 raeburn 3727: &appenv(\%envhash);
1.731 albertel 3728: }
1.302 albertel 3729: return %returnhash;
1.461 www 3730: }
3731:
3732: # -------------------------------------------------See if a user is privileged
3733:
3734: sub privileged {
3735: my ($username,$domain)=@_;
3736: my $rolesdump=&reply("dump:$domain:$username:roles",
3737: &homeserver($username,$domain));
3738: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
3739: my $now=time;
3740: if ($rolesdump ne '') {
1.800 albertel 3741: foreach my $entry (split(/&/,$rolesdump)) {
3742: if ($entry!~/^rolesdef_/) {
3743: my ($area,$role)=split(/=/,$entry);
1.461 www 3744: $area=~s/\_\w\w$//;
3745: my ($trole,$tend,$tstart)=split(/_/,$role);
3746: if (($trole eq 'dc') || ($trole eq 'su')) {
3747: my $active=1;
3748: if ($tend) {
3749: if ($tend<$now) { $active=0; }
3750: }
3751: if ($tstart) {
3752: if ($tstart>$now) { $active=0; }
3753: }
3754: if ($active) { return 1; }
3755: }
3756: }
3757: }
3758: }
3759: return 0;
1.9 www 3760: }
1.1 albertel 3761:
1.103 harris41 3762: # -------------------------------------------------------- Get user privileges
1.11 www 3763:
3764: sub rolesinit {
3765: my ($domain,$username,$authhost)=@_;
1.966 raeburn 3766: my %userroles;
1.11 www 3767: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.966 raeburn 3768: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return \%userroles; }
1.11 www 3769: my %allroles=();
1.678 raeburn 3770: my %allgroups=();
1.11 www 3771: my $now=time;
1.966 raeburn 3772: %userroles = ('user.login.time' => $now);
1.678 raeburn 3773: my $group_privs;
1.11 www 3774:
3775: if ($rolesdump ne '') {
1.800 albertel 3776: foreach my $entry (split(/&/,$rolesdump)) {
3777: if ($entry!~/^rolesdef_/) {
3778: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3779: $area=~s/\_\w\w$//;
1.678 raeburn 3780: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3781: if ($role=~/^cr/) {
1.807 albertel 3782: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3783: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3784: ($tend,$tstart)=split('_',$trest);
3785: } else {
3786: $trole=$role;
3787: }
1.678 raeburn 3788: } elsif ($role =~ m|^gr/|) {
3789: ($trole,$tend,$tstart) = split(/_/,$role);
3790: ($trole,$group_privs) = split(/\//,$trole);
3791: $group_privs = &unescape($group_privs);
1.587 albertel 3792: } else {
3793: ($trole,$tend,$tstart)=split(/_/,$role);
3794: }
1.743 albertel 3795: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3796: $username);
3797: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3798: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3799: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3800: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3801: my $spec=$trole.'.'.$area;
3802: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3803: if ($trole =~ /^cr\//) {
1.567 raeburn 3804: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3805: } elsif ($trole eq 'gr') {
3806: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3807: } else {
1.567 raeburn 3808: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3809: }
1.12 www 3810: }
1.662 raeburn 3811: }
1.191 harris41 3812: }
1.743 albertel 3813: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3814: $userroles{'user.adv'} = $adv;
3815: $userroles{'user.author'} = $author;
1.620 albertel 3816: $env{'user.adv'}=$adv;
1.11 www 3817: }
1.743 albertel 3818: return \%userroles;
1.11 www 3819: }
3820:
1.567 raeburn 3821: sub set_arearole {
3822: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3823: # log the associated role with the area
3824: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3825: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3826: }
3827:
3828: sub custom_roleprivs {
3829: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3830: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3831: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3832: if (&hostname($homsvr) ne '') {
1.567 raeburn 3833: my ($rdummy,$roledef)=
3834: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3835: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3836: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3837: if (defined($syspriv)) {
3838: $$allroles{'cm./'}.=':'.$syspriv;
3839: $$allroles{$spec.'./'}.=':'.$syspriv;
3840: }
3841: if ($tdomain ne '') {
3842: if (defined($dompriv)) {
3843: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3844: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3845: }
3846: if (($trest ne '') && (defined($coursepriv))) {
3847: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3848: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3849: }
3850: }
3851: }
3852: }
3853: }
3854:
1.678 raeburn 3855: sub group_roleprivs {
3856: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3857: my $access = 1;
3858: my $now = time;
3859: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3860: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3861: if ($access) {
1.811 albertel 3862: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3863: $$allgroups{$course}{$group} .=':'.$group_privs;
3864: }
3865: }
1.567 raeburn 3866:
3867: sub standard_roleprivs {
3868: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3869: if (defined($pr{$trole.':s'})) {
3870: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3871: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3872: }
3873: if ($tdomain ne '') {
3874: if (defined($pr{$trole.':d'})) {
3875: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3876: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3877: }
3878: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3879: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3880: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3881: }
3882: }
3883: }
3884:
3885: sub set_userprivs {
1.678 raeburn 3886: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3887: my $author=0;
3888: my $adv=0;
1.678 raeburn 3889: my %grouproles = ();
3890: if (keys(%{$allgroups}) > 0) {
1.1000 raeburn 3891: foreach my $role (keys(%{$allroles})) {
1.681 raeburn 3892: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3893: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3894: $trole = $1;
3895: $area = $2;
1.681 raeburn 3896: $sec = $3;
3897: $extendedarea = $area.$sec;
3898: if (exists($$allgroups{$area})) {
3899: foreach my $group (keys(%{$$allgroups{$area}})) {
3900: my $spec = $trole.'.'.$extendedarea;
3901: $grouproles{$spec.'.'.$area.'/'.$group} =
3902: $$allgroups{$area}{$group};
1.678 raeburn 3903: }
3904: }
3905: }
3906: }
3907: }
1.800 albertel 3908: foreach my $group (keys(%grouproles)) {
3909: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 3910: }
1.800 albertel 3911: foreach my $role (keys(%{$allroles})) {
3912: my %thesepriv;
1.941 raeburn 3913: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 3914: foreach my $item (split(/:/,$$allroles{$role})) {
3915: if ($item ne '') {
3916: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 3917: if ($restrictions eq '') {
3918: $thesepriv{$privilege}='F';
3919: } elsif ($thesepriv{$privilege} ne 'F') {
3920: $thesepriv{$privilege}.=$restrictions;
3921: }
3922: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
3923: }
3924: }
3925: my $thesestr='';
1.800 albertel 3926: foreach my $priv (keys(%thesepriv)) {
3927: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
3928: }
3929: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 3930: }
3931: return ($author,$adv);
3932: }
3933:
1.994 raeburn 3934: sub role_status {
1.1002 raeburn 3935: my ($rolekey,$then,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 3936: my @pwhere = ();
3937: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
3938: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
3939: unless (!defined($$role) || $$role eq '') {
3940: $$where=join('.',@pwhere);
3941: $$trolecode=$$role.'.'.$$where;
3942: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
3943: $$tstatus='is';
3944: if ($$tstart && $$tstart>$then) {
3945: $$tstatus='future';
1.1002 raeburn 3946: if ($$tstart && $$tstart>$refresh) {
3947: if ($$tstart<$now) {
3948: if (($$where ne '') && ($$role ne '')) {
3949: my (%allroles,%allgroups,$group_privs);
3950: my %userroles = (
3951: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
3952: );
3953: my $spec=$$role.'.'.$$where;
3954: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
3955: if ($$role eq 'gr') {
3956: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
3957: $env{'user.name'})=@_;
3958: my ($trole) = split('_',$role,1);
3959: (undef,my $group_privs) = split(/\//,$trole);
3960: $group_privs = &unescape($group_privs);
3961: }
3962: if ($$role =~ /^cr\//) {
3963: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
3964: } elsif ($$role eq 'gr') {
3965: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
3966: $env{'user.name'});
3967: my $trole = split('_',$rolehash{$$where.'_'.$$role},1);
3968: (undef,my $group_privs) = split(/\//,$trole);
3969: $group_privs = &unescape($group_privs);
3970: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
3971: } else {
3972: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
3973: }
3974: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups);
3975: &appenv(\%userroles,[$$role,'cm']);
3976: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
3977: $$tstatus = 'is';
3978: }
3979: }
3980: }
1.994 raeburn 3981: }
3982: if ($$tend) {
3983: if ($$tend<$then) {
3984: $$tstatus='expired';
3985: } elsif ($$tend<$now) {
3986: $$tstatus='will_not';
3987: }
3988: }
3989: }
3990: }
3991: }
3992:
3993: sub check_adhoc_privs {
1.1002 raeburn 3994: my ($cdom,$cnum,$then,$refresh,$now,$checkrole) = @_;
1.994 raeburn 3995: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
3996: if ($env{$cckey}) {
3997: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1002 raeburn 3998: &role_status($cckey,$then,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 3999: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
4000: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4001: }
4002: } else {
4003: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4004: }
4005: }
4006:
4007: sub set_adhoc_privileges {
4008: # role can be cc or ca
4009: my ($dcdom,$pickedcourse,$role) = @_;
4010: my $area = '/'.$dcdom.'/'.$pickedcourse;
4011: my $spec = $role.'.'.$area;
4012: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
4013: $env{'user.name'});
4014: my %ccrole = ();
4015: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
4016: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
4017: &appenv(\%userroles,[$role,'cm']);
4018: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4019: &appenv( {'request.role' => $spec,
4020: 'request.role.domain' => $dcdom,
4021: 'request.course.sec' => ''
4022: }
4023: );
4024: my $tadv=0;
4025: if (&allowed('adv') eq 'F') { $tadv=1; }
4026: &appenv({'request.role.adv' => $tadv});
4027: }
4028:
1.12 www 4029: # --------------------------------------------------------------- get interface
4030:
4031: sub get {
1.131 albertel 4032: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4033: my $items='';
1.800 albertel 4034: foreach my $item (@$storearr) {
4035: $items.=&escape($item).'&';
1.191 harris41 4036: }
1.12 www 4037: $items=~s/\&$//;
1.620 albertel 4038: if (!$udomain) { $udomain=$env{'user.domain'}; }
4039: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 4040: my $uhome=&homeserver($uname,$udomain);
4041:
1.133 albertel 4042: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4043: my @pairs=split(/\&/,$rep);
1.273 albertel 4044: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
4045: return @pairs;
4046: }
1.15 www 4047: my %returnhash=();
1.42 www 4048: my $i=0;
1.800 albertel 4049: foreach my $item (@$storearr) {
4050: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4051: $i++;
1.191 harris41 4052: }
1.15 www 4053: return %returnhash;
1.27 www 4054: }
4055:
4056: # --------------------------------------------------------------- del interface
4057:
4058: sub del {
1.133 albertel 4059: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 4060: my $items='';
1.800 albertel 4061: foreach my $item (@$storearr) {
4062: $items.=&escape($item).'&';
1.191 harris41 4063: }
1.984 neumanie 4064:
1.27 www 4065: $items=~s/\&$//;
1.620 albertel 4066: if (!$udomain) { $udomain=$env{'user.domain'}; }
4067: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4068: my $uhome=&homeserver($uname,$udomain);
4069: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4070: }
4071:
4072: # -------------------------------------------------------------- dump interface
4073:
4074: sub dump {
1.755 albertel 4075: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
4076: if (!$udomain) { $udomain=$env{'user.domain'}; }
4077: if (!$uname) { $uname=$env{'user.name'}; }
4078: my $uhome=&homeserver($uname,$udomain);
4079: if ($regexp) {
4080: $regexp=&escape($regexp);
4081: } else {
4082: $regexp='.';
4083: }
4084: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4085: my @pairs=split(/\&/,$rep);
4086: my %returnhash=();
4087: foreach my $item (@pairs) {
4088: my ($key,$value)=split(/=/,$item,2);
4089: $key = &unescape($key);
4090: next if ($key =~ /^error: 2 /);
4091: $returnhash{$key}=&thaw_unescape($value);
4092: }
4093: return %returnhash;
1.407 www 4094: }
4095:
1.717 albertel 4096: # --------------------------------------------------------- dumpstore interface
4097:
4098: sub dumpstore {
4099: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 4100: if (!$udomain) { $udomain=$env{'user.domain'}; }
4101: if (!$uname) { $uname=$env{'user.name'}; }
4102: my $uhome=&homeserver($uname,$udomain);
4103: if ($regexp) {
4104: $regexp=&escape($regexp);
4105: } else {
4106: $regexp='.';
4107: }
4108: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4109: my @pairs=split(/\&/,$rep);
4110: my %returnhash=();
4111: foreach my $item (@pairs) {
4112: my ($key,$value)=split(/=/,$item,2);
4113: next if ($key =~ /^error: 2 /);
4114: $returnhash{$key}=&thaw_unescape($value);
4115: }
4116: return %returnhash;
1.717 albertel 4117: }
4118:
1.407 www 4119: # -------------------------------------------------------------- keys interface
4120:
4121: sub getkeys {
4122: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 4123: if (!$udomain) { $udomain=$env{'user.domain'}; }
4124: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 4125: my $uhome=&homeserver($uname,$udomain);
4126: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
4127: my @keyarray=();
1.800 albertel 4128: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 4129: next if ($key =~ /^error: 2 /);
1.800 albertel 4130: push(@keyarray,&unescape($key));
1.407 www 4131: }
4132: return @keyarray;
1.318 matthew 4133: }
4134:
1.319 matthew 4135: # --------------------------------------------------------------- currentdump
4136: sub currentdump {
1.328 matthew 4137: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 4138: $courseid = $env{'request.course.id'} if (! defined($courseid));
4139: $sdom = $env{'user.domain'} if (! defined($sdom));
4140: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 4141: my $uhome = &homeserver($sname,$sdom);
4142: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 4143: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 4144: #
1.318 matthew 4145: my %returnhash=();
1.319 matthew 4146: #
4147: if ($rep eq "unknown_cmd") {
4148: # an old lond will not know currentdump
4149: # Do a dump and make it look like a currentdump
1.822 albertel 4150: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 4151: return if ($tmp[0] =~ /^(error:|no_such_host)/);
4152: my %hash = @tmp;
4153: @tmp=();
1.424 matthew 4154: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 4155: } else {
4156: my @pairs=split(/\&/,$rep);
1.800 albertel 4157: foreach my $pair (@pairs) {
4158: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 4159: my ($symb,$param) = split(/:/,$key);
4160: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 4161: &thaw_unescape($value);
1.319 matthew 4162: }
1.191 harris41 4163: }
1.12 www 4164: return %returnhash;
1.424 matthew 4165: }
4166:
4167: sub convert_dump_to_currentdump{
4168: my %hash = %{shift()};
4169: my %returnhash;
4170: # Code ripped from lond, essentially. The only difference
4171: # here is the unescaping done by lonnet::dump(). Conceivably
4172: # we might run in to problems with parameter names =~ /^v\./
4173: while (my ($key,$value) = each(%hash)) {
4174: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 4175: $symb = &unescape($symb);
4176: $param = &unescape($param);
1.424 matthew 4177: next if ($v eq 'version' || $symb eq 'keys');
4178: next if (exists($returnhash{$symb}) &&
4179: exists($returnhash{$symb}->{$param}) &&
4180: $returnhash{$symb}->{'v.'.$param} > $v);
4181: $returnhash{$symb}->{$param}=$value;
4182: $returnhash{$symb}->{'v.'.$param}=$v;
4183: }
4184: #
4185: # Remove all of the keys in the hashes which keep track of
4186: # the version of the parameter.
4187: while (my ($symb,$param_hash) = each(%returnhash)) {
4188: # use a foreach because we are going to delete from the hash.
4189: foreach my $key (keys(%$param_hash)) {
4190: delete($param_hash->{$key}) if ($key =~ /^v\./);
4191: }
4192: }
4193: return \%returnhash;
1.12 www 4194: }
4195:
1.627 albertel 4196: # ------------------------------------------------------ critical inc interface
4197:
4198: sub cinc {
4199: return &inc(@_,'critical');
4200: }
4201:
1.449 matthew 4202: # --------------------------------------------------------------- inc interface
4203:
4204: sub inc {
1.627 albertel 4205: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 4206: if (!$udomain) { $udomain=$env{'user.domain'}; }
4207: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 4208: my $uhome=&homeserver($uname,$udomain);
4209: my $items='';
4210: if (! ref($store)) {
4211: # got a single value, so use that instead
4212: $items = &escape($store).'=&';
4213: } elsif (ref($store) eq 'SCALAR') {
4214: $items = &escape($$store).'=&';
4215: } elsif (ref($store) eq 'ARRAY') {
4216: $items = join('=&',map {&escape($_);} @{$store});
4217: } elsif (ref($store) eq 'HASH') {
4218: while (my($key,$value) = each(%{$store})) {
4219: $items.= &escape($key).'='.&escape($value).'&';
4220: }
4221: }
4222: $items=~s/\&$//;
1.627 albertel 4223: if ($critical) {
4224: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
4225: } else {
4226: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
4227: }
1.449 matthew 4228: }
4229:
1.12 www 4230: # --------------------------------------------------------------- put interface
4231:
4232: sub put {
1.134 albertel 4233: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4234: if (!$udomain) { $udomain=$env{'user.domain'}; }
4235: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4236: my $uhome=&homeserver($uname,$udomain);
1.12 www 4237: my $items='';
1.800 albertel 4238: foreach my $item (keys(%$storehash)) {
4239: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4240: }
1.12 www 4241: $items=~s/\&$//;
1.134 albertel 4242: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 4243: }
4244:
1.631 albertel 4245: # ------------------------------------------------------------ newput interface
4246:
4247: sub newput {
4248: my ($namespace,$storehash,$udomain,$uname)=@_;
4249: if (!$udomain) { $udomain=$env{'user.domain'}; }
4250: if (!$uname) { $uname=$env{'user.name'}; }
4251: my $uhome=&homeserver($uname,$udomain);
4252: my $items='';
4253: foreach my $key (keys(%$storehash)) {
4254: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
4255: }
4256: $items=~s/\&$//;
4257: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
4258: }
4259:
4260: # --------------------------------------------------------- putstore interface
4261:
1.524 raeburn 4262: sub putstore {
1.715 albertel 4263: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 4264: if (!$udomain) { $udomain=$env{'user.domain'}; }
4265: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 4266: my $uhome=&homeserver($uname,$udomain);
4267: my $items='';
1.715 albertel 4268: foreach my $key (keys(%$storehash)) {
4269: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 4270: }
1.715 albertel 4271: $items=~s/\&$//;
1.716 albertel 4272: my $esc_symb=&escape($symb);
4273: my $esc_v=&escape($version);
1.715 albertel 4274: my $reply =
1.716 albertel 4275: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 4276: $uhome);
4277: if ($reply eq 'unknown_cmd') {
1.716 albertel 4278: # gfall back to way things use to be done
1.715 albertel 4279: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
4280: $uname);
1.524 raeburn 4281: }
1.715 albertel 4282: return $reply;
4283: }
4284:
4285: sub old_putstore {
1.716 albertel 4286: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
4287: if (!$udomain) { $udomain=$env{'user.domain'}; }
4288: if (!$uname) { $uname=$env{'user.name'}; }
4289: my $uhome=&homeserver($uname,$udomain);
4290: my %newstorehash;
1.800 albertel 4291: foreach my $item (keys(%$storehash)) {
4292: my $key = $version.':'.&escape($symb).':'.$item;
4293: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 4294: }
4295: my $items='';
4296: my %allitems = ();
1.800 albertel 4297: foreach my $item (keys(%newstorehash)) {
4298: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4299: my $key = $1.':keys:'.$2;
4300: $allitems{$key} .= $3.':';
4301: }
1.800 albertel 4302: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4303: }
1.800 albertel 4304: foreach my $item (keys(%allitems)) {
4305: $allitems{$item} =~ s/\:$//;
4306: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4307: }
4308: $items=~s/\&$//;
4309: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4310: }
4311:
1.47 www 4312: # ------------------------------------------------------ critical put interface
4313:
4314: sub cput {
1.134 albertel 4315: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4316: if (!$udomain) { $udomain=$env{'user.domain'}; }
4317: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4318: my $uhome=&homeserver($uname,$udomain);
1.47 www 4319: my $items='';
1.800 albertel 4320: foreach my $item (keys(%$storehash)) {
4321: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4322: }
1.47 www 4323: $items=~s/\&$//;
1.134 albertel 4324: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4325: }
4326:
4327: # -------------------------------------------------------------- eget interface
4328:
4329: sub eget {
1.133 albertel 4330: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4331: my $items='';
1.800 albertel 4332: foreach my $item (@$storearr) {
4333: $items.=&escape($item).'&';
1.191 harris41 4334: }
1.12 www 4335: $items=~s/\&$//;
1.620 albertel 4336: if (!$udomain) { $udomain=$env{'user.domain'}; }
4337: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4338: my $uhome=&homeserver($uname,$udomain);
4339: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4340: my @pairs=split(/\&/,$rep);
4341: my %returnhash=();
1.42 www 4342: my $i=0;
1.800 albertel 4343: foreach my $item (@$storearr) {
4344: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4345: $i++;
1.191 harris41 4346: }
1.12 www 4347: return %returnhash;
4348: }
4349:
1.667 albertel 4350: # ------------------------------------------------------------ tmpput interface
4351: sub tmpput {
1.802 raeburn 4352: my ($storehash,$server,$context)=@_;
1.667 albertel 4353: my $items='';
1.800 albertel 4354: foreach my $item (keys(%$storehash)) {
4355: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4356: }
4357: $items=~s/\&$//;
1.802 raeburn 4358: if (defined($context)) {
4359: $items .= ':'.&escape($context);
4360: }
1.667 albertel 4361: return &reply("tmpput:$items",$server);
4362: }
4363:
4364: # ------------------------------------------------------------ tmpget interface
4365: sub tmpget {
1.688 albertel 4366: my ($token,$server)=@_;
4367: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4368: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4369: my %returnhash;
4370: foreach my $item (split(/\&/,$rep)) {
4371: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4372: next if ($key =~ /^error: 2 /);
1.667 albertel 4373: $returnhash{&unescape($key)}=&thaw_unescape($value);
4374: }
4375: return %returnhash;
4376: }
4377:
1.688 albertel 4378: # ------------------------------------------------------------ tmpget interface
4379: sub tmpdel {
4380: my ($token,$server)=@_;
4381: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4382: return &reply("tmpdel:$token",$server);
4383: }
4384:
1.765 albertel 4385: # -------------------------------------------------- portfolio access checking
4386:
4387: sub portfolio_access {
1.766 albertel 4388: my ($requrl) = @_;
1.765 albertel 4389: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4390: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4391: if ($result) {
4392: my %setters;
4393: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4394: my ($startblock,$endblock) =
4395: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4396: if ($startblock && $endblock) {
4397: return 'B';
4398: }
4399: } else {
4400: my ($startblock,$endblock) =
4401: &Apache::loncommon::blockcheck(\%setters,'port');
4402: if ($startblock && $endblock) {
4403: return 'B';
4404: }
4405: }
4406: }
1.765 albertel 4407: if ($result eq 'ok') {
1.766 albertel 4408: return 'F';
1.765 albertel 4409: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4410: return 'A';
1.765 albertel 4411: }
1.766 albertel 4412: return '';
1.765 albertel 4413: }
4414:
4415: sub get_portfolio_access {
1.767 albertel 4416: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4417:
4418: if (!ref($access_hash)) {
4419: my $current_perms = &get_portfile_permissions($udom,$unum);
4420: my %access_controls = &get_access_controls($current_perms,$group,
4421: $file_name);
4422: $access_hash = $access_controls{$file_name};
4423: }
4424:
1.765 albertel 4425: my ($public,$guest,@domains,@users,@courses,@groups);
4426: my $now = time;
4427: if (ref($access_hash) eq 'HASH') {
4428: foreach my $key (keys(%{$access_hash})) {
4429: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4430: if ($start > $now) {
4431: next;
4432: }
4433: if ($end && $end<$now) {
4434: next;
4435: }
4436: if ($scope eq 'public') {
4437: $public = $key;
4438: last;
4439: } elsif ($scope eq 'guest') {
4440: $guest = $key;
4441: } elsif ($scope eq 'domains') {
4442: push(@domains,$key);
4443: } elsif ($scope eq 'users') {
4444: push(@users,$key);
4445: } elsif ($scope eq 'course') {
4446: push(@courses,$key);
4447: } elsif ($scope eq 'group') {
4448: push(@groups,$key);
4449: }
4450: }
4451: if ($public) {
4452: return 'ok';
4453: }
4454: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4455: if ($guest) {
4456: return $guest;
4457: }
4458: } else {
4459: if (@domains > 0) {
4460: foreach my $domkey (@domains) {
4461: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4462: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4463: return 'ok';
4464: }
4465: }
4466: }
4467: }
4468: if (@users > 0) {
4469: foreach my $userkey (@users) {
1.865 raeburn 4470: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4471: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4472: if (ref($item) eq 'HASH') {
4473: if (($item->{'uname'} eq $env{'user.name'}) &&
4474: ($item->{'udom'} eq $env{'user.domain'})) {
4475: return 'ok';
4476: }
4477: }
4478: }
4479: }
1.765 albertel 4480: }
4481: }
4482: my %roleshash;
4483: my @courses_and_groups = @courses;
4484: push(@courses_and_groups,@groups);
4485: if (@courses_and_groups > 0) {
4486: my (%allgroups,%allroles);
4487: my ($start,$end,$role,$sec,$group);
4488: foreach my $envkey (%env) {
1.811 albertel 4489: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4490: my $cid = $2.'_'.$3;
4491: if ($1 eq 'gr') {
4492: $group = $4;
4493: $allgroups{$cid}{$group} = $env{$envkey};
4494: } else {
4495: if ($4 eq '') {
4496: $sec = 'none';
4497: } else {
4498: $sec = $4;
4499: }
4500: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4501: }
1.811 albertel 4502: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4503: my $cid = $2.'_'.$3;
4504: if ($4 eq '') {
4505: $sec = 'none';
4506: } else {
4507: $sec = $4;
4508: }
4509: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4510: }
4511: }
4512: if (keys(%allroles) == 0) {
4513: return;
4514: }
4515: foreach my $key (@courses_and_groups) {
4516: my %content = %{$$access_hash{$key}};
4517: my $cnum = $content{'number'};
4518: my $cdom = $content{'domain'};
4519: my $cid = $cdom.'_'.$cnum;
4520: if (!exists($allroles{$cid})) {
4521: next;
4522: }
4523: foreach my $role_id (keys(%{$content{'roles'}})) {
4524: my @sections = @{$content{'roles'}{$role_id}{'section'}};
4525: my @groups = @{$content{'roles'}{$role_id}{'group'}};
4526: my @status = @{$content{'roles'}{$role_id}{'access'}};
4527: my @roles = @{$content{'roles'}{$role_id}{'role'}};
4528: foreach my $role (keys(%{$allroles{$cid}})) {
4529: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
4530: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
4531: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
4532: if (grep/^all$/,@sections) {
4533: return 'ok';
4534: } else {
4535: if (grep/^$sec$/,@sections) {
4536: return 'ok';
4537: }
4538: }
4539: }
4540: }
4541: if (keys(%{$allgroups{$cid}}) == 0) {
4542: if (grep/^none$/,@groups) {
4543: return 'ok';
4544: }
4545: } else {
4546: if (grep/^all$/,@groups) {
4547: return 'ok';
4548: }
4549: foreach my $group (keys(%{$allgroups{$cid}})) {
4550: if (grep/^$group$/,@groups) {
4551: return 'ok';
4552: }
4553: }
4554: }
4555: }
4556: }
4557: }
4558: }
4559: }
4560: if ($guest) {
4561: return $guest;
4562: }
4563: }
4564: }
4565: return;
4566: }
4567:
4568: sub course_group_datechecker {
4569: my ($dates,$now,$status) = @_;
4570: my ($start,$end) = split(/\./,$dates);
4571: if (!$start && !$end) {
4572: return 'ok';
4573: }
4574: if (grep/^active$/,@{$status}) {
4575: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
4576: return 'ok';
4577: }
4578: }
4579: if (grep/^previous$/,@{$status}) {
4580: if ($end > $now ) {
4581: return 'ok';
4582: }
4583: }
4584: if (grep/^future$/,@{$status}) {
4585: if ($start > $now) {
4586: return 'ok';
4587: }
4588: }
4589: return;
4590: }
4591:
4592: sub parse_portfolio_url {
4593: my ($url) = @_;
4594:
4595: my ($type,$udom,$unum,$group,$file_name);
4596:
1.823 albertel 4597: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 4598: $type = 1;
4599: $udom = $1;
4600: $unum = $2;
4601: $file_name = $3;
1.823 albertel 4602: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 4603: $type = 2;
4604: $udom = $1;
4605: $unum = $2;
4606: $group = $3;
4607: $file_name = $3.'/'.$4;
4608: }
4609: if (wantarray) {
4610: return ($type,$udom,$unum,$file_name,$group);
4611: }
4612: return $type;
4613: }
4614:
4615: sub is_portfolio_url {
4616: my ($url) = @_;
4617: return scalar(&parse_portfolio_url($url));
4618: }
4619:
1.798 raeburn 4620: sub is_portfolio_file {
4621: my ($file) = @_;
1.820 raeburn 4622: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 4623: return 1;
4624: }
4625: return;
4626: }
4627:
1.976 raeburn 4628: sub usertools_access {
1.985 raeburn 4629: my ($uname,$udom,$tool,$action,$context) = @_;
4630: my ($access,%tools);
4631: if ($context eq '') {
4632: $context = 'tools';
4633: }
4634: if ($context eq 'requestcourses') {
4635: %tools = (
4636: official => 1,
4637: unofficial => 1,
1.1006 ! raeburn 4638: community => 1,
1.985 raeburn 4639: );
4640: } else {
4641: %tools = (
4642: aboutme => 1,
4643: blog => 1,
4644: portfolio => 1,
4645: );
4646: }
1.976 raeburn 4647: return if (!defined($tools{$tool}));
4648:
4649: if ((!defined($udom)) || (!defined($uname))) {
4650: $udom = $env{'user.domain'};
4651: $uname = $env{'user.name'};
4652: }
4653:
1.978 raeburn 4654: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
4655: if ($action ne 'reload') {
1.985 raeburn 4656: if ($context eq 'requestcourses') {
4657: return $env{'environment.canrequest.'.$tool};
4658: } else {
4659: return $env{'environment.availabletools.'.$tool};
4660: }
4661: }
1.976 raeburn 4662: }
4663:
4664: my ($toolstatus,$inststatus);
4665:
1.985 raeburn 4666: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
4667: ($action ne 'reload')) {
4668: $toolstatus = $env{'environment.'.$context.'.'.$tool};
1.976 raeburn 4669: $inststatus = $env{'environment.inststatus'};
4670: } else {
1.985 raeburn 4671: my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool);
4672: $toolstatus = $userenv{$context.'.'.$tool};
1.976 raeburn 4673: $inststatus = $userenv{'inststatus'};
4674: }
4675:
4676: if ($toolstatus ne '') {
4677: if ($toolstatus) {
4678: $access = 1;
4679: } else {
4680: $access = 0;
4681: }
4682: return $access;
4683: }
4684:
4685: my $is_adv = &is_advanced_user($udom,$uname);
4686: my %domdef = &get_domain_defaults($udom);
4687: if (ref($domdef{$tool}) eq 'HASH') {
4688: if ($is_adv) {
4689: if ($domdef{$tool}{'_LC_adv'} ne '') {
4690: if ($domdef{$tool}{'_LC_adv'}) {
4691: $access = 1;
4692: } else {
4693: $access = 0;
4694: }
4695: return $access;
4696: }
4697: }
4698: if ($inststatus ne '') {
4699: my ($hasaccess,$hasnoaccess);
4700: foreach my $affiliation (split(/:/,$inststatus)) {
4701: if ($domdef{$tool}{$affiliation} ne '') {
4702: if ($domdef{$tool}{$affiliation}) {
4703: $hasaccess = 1;
4704: } else {
4705: $hasnoaccess = 1;
4706: }
4707: }
4708: }
4709: if ($hasaccess || $hasnoaccess) {
4710: if ($hasaccess) {
4711: $access = 1;
4712: } elsif ($hasnoaccess) {
4713: $access = 0;
4714: }
4715: return $access;
4716: }
4717: } else {
4718: if ($domdef{$tool}{'default'} ne '') {
4719: if ($domdef{$tool}{'default'}) {
4720: $access = 1;
4721: } elsif ($domdef{$tool}{'default'} == 0) {
4722: $access = 0;
4723: }
4724: return $access;
4725: }
4726: }
4727: } else {
1.985 raeburn 4728: if ($context eq 'tools') {
4729: $access = 1;
4730: } else {
4731: $access = 0;
4732: }
1.976 raeburn 4733: return $access;
4734: }
4735: }
4736:
4737: sub is_advanced_user {
4738: my ($udom,$uname) = @_;
4739: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
4740: my %allroles;
4741: my $is_adv;
4742: foreach my $role (keys(%roleshash)) {
4743: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
4744: my $area = '/'.$tdomain.'/'.$trest;
4745: if ($sec ne '') {
4746: $area .= '/'.$sec;
4747: }
4748: if (($area ne '') && ($trole ne '')) {
4749: my $spec=$trole.'.'.$area;
4750: if ($trole =~ /^cr\//) {
4751: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
4752: } elsif ($trole ne 'gr') {
4753: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
4754: }
4755: }
4756: }
4757: foreach my $role (keys(%allroles)) {
4758: last if ($is_adv);
4759: foreach my $item (split(/:/,$allroles{$role})) {
4760: if ($item ne '') {
4761: my ($privilege,$restrictions)=split(/&/,$item);
4762: if ($privilege eq 'adv') {
4763: $is_adv = 1;
4764: last;
4765: }
4766: }
4767: }
4768: }
4769: return $is_adv;
4770: }
1.798 raeburn 4771:
1.341 www 4772: # ---------------------------------------------- Custom access rule evaluation
4773:
4774: sub customaccess {
4775: my ($priv,$uri)=@_;
1.807 albertel 4776: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 4777: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 4778: $udom = &LONCAPA::clean_domain($udom);
4779: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 4780: my $access=0;
1.800 albertel 4781: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 4782: my ($effect,$realm,$role,$type)=split(/\:/,$right);
4783: if ($type eq 'user') {
4784: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 4785: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 4786: if ($tdom) {
4787: if ($tdom ne $env{'user.domain'}) { next; }
4788: }
1.896 albertel 4789: if ($tuname) {
4790: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 4791: }
4792: $access=($effect eq 'allow');
4793: last;
4794: }
4795: } else {
4796: if ($role) {
4797: if ($role ne $urole) { next; }
4798: }
4799: foreach my $scope (split(/\s*\,\s*/,$realm)) {
4800: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
4801: if ($tdom) {
4802: if ($tdom ne $udom) { next; }
4803: }
4804: if ($tcrs) {
4805: if ($tcrs ne $ucrs) { next; }
4806: }
4807: if ($tsec) {
4808: if ($tsec ne $usec) { next; }
4809: }
4810: $access=($effect eq 'allow');
4811: last;
4812: }
4813: if ($realm eq '' && $role eq '') {
4814: $access=($effect eq 'allow');
4815: }
1.402 bowersj2 4816: }
1.341 www 4817: }
4818: return $access;
4819: }
4820:
1.103 harris41 4821: # ------------------------------------------------- Check for a user privilege
1.12 www 4822:
4823: sub allowed {
1.810 raeburn 4824: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 4825: my $ver_orguri=$uri;
1.439 www 4826: $uri=&deversion($uri);
1.152 www 4827: my $orguri=$uri;
1.52 www 4828: $uri=&declutter($uri);
1.809 raeburn 4829:
1.810 raeburn 4830: if ($priv eq 'evb') {
4831: # Evade communication block restrictions for specified role in a course
4832: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
4833: return $1;
4834: } else {
4835: return;
4836: }
4837: }
4838:
1.620 albertel 4839: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 4840: # Free bre access to adm and meta resources
1.775 albertel 4841: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 4842: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
4843: && ($priv eq 'bre')) {
1.14 www 4844: return 'F';
1.159 www 4845: }
4846:
1.545 banghart 4847: # Free bre access to user's own portfolio contents
1.714 raeburn 4848: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 4849: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 4850: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 4851: my %setters;
4852: my ($startblock,$endblock) =
4853: &Apache::loncommon::blockcheck(\%setters,'port');
4854: if ($startblock && $endblock) {
4855: return 'B';
4856: } else {
4857: return 'F';
4858: }
1.545 banghart 4859: }
4860:
1.762 raeburn 4861: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 4862: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
4863: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
4864: if (exists($env{'request.course.id'})) {
4865: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4866: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4867: if (($domain eq $cdom) && ($name eq $cnum)) {
4868: my $courseprivid=$env{'request.course.id'};
4869: $courseprivid=~s/\_/\//;
4870: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
4871: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
4872: return $1;
1.762 raeburn 4873: } else {
4874: if ($env{'request.course.sec'}) {
4875: $courseprivid.='/'.$env{'request.course.sec'};
4876: }
4877: if ($env{'user.priv.'.$env{'request.role'}.'./'.
4878: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
4879: return $2;
4880: }
1.714 raeburn 4881: }
4882: }
4883: }
4884: }
4885:
1.159 www 4886: # Free bre to public access
4887:
4888: if ($priv eq 'bre') {
1.238 www 4889: my $copyright=&metadata($uri,'copyright');
1.620 albertel 4890: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 4891: return 'F';
4892: }
1.238 www 4893: if ($copyright eq 'priv') {
4894: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4895: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 4896: return '';
4897: }
4898: }
4899: if ($copyright eq 'domain') {
4900: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4901: unless (($env{'user.domain'} eq $1) ||
4902: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 4903: return '';
4904: }
1.262 matthew 4905: }
1.620 albertel 4906: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 4907: # Library role, so allow browsing of resources in this domain.
4908: return 'F';
1.238 www 4909: }
1.341 www 4910: if ($copyright eq 'custom') {
4911: unless (&customaccess($priv,$uri)) { return ''; }
4912: }
1.14 www 4913: }
1.264 matthew 4914: # Domain coordinator is trying to create a course
1.620 albertel 4915: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 4916: # uri is the requested domain in this case.
4917: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 4918: # a role of dc for the domain in question.
1.620 albertel 4919: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 4920: }
1.29 www 4921:
1.52 www 4922: my $thisallowed='';
4923: my $statecond=0;
4924: my $courseprivid='';
4925:
4926: # Course
4927:
1.620 albertel 4928: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4929: $thisallowed.=$1;
4930: }
1.29 www 4931:
1.52 www 4932: # Domain
4933:
1.620 albertel 4934: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 4935: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4936: $thisallowed.=$1;
4937: }
1.52 www 4938:
4939: # Course: uri itself is a course
1.66 www 4940: my $courseuri=$uri;
4941: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 4942: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 4943:
1.620 albertel 4944: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 4945: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4946: $thisallowed.=$1;
4947: }
1.29 www 4948:
1.665 albertel 4949: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 4950: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 4951: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 4952: $thisallowed='';
1.671 raeburn 4953: my ($match)=&is_on_map($uri);
4954: if ($match) {
4955: if ($env{'user.priv.'.$env{'request.role'}.'./'}
4956: =~/\Q$priv\E\&([^\:]*)/) {
4957: $thisallowed.=$1;
4958: }
4959: } else {
1.705 albertel 4960: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 4961: if ($refuri) {
4962: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 4963: $thisallowed='F';
1.671 raeburn 4964: } else {
4965: $refuri=&declutter($refuri);
4966: my ($match) = &is_on_map($refuri);
4967: if ($match) {
4968: $thisallowed='F';
4969: }
1.669 raeburn 4970: }
1.671 raeburn 4971: }
4972: }
1.314 www 4973: }
1.492 albertel 4974:
1.766 albertel 4975: if ($priv eq 'bre'
4976: && $thisallowed ne 'F'
4977: && $thisallowed ne '2'
4978: && &is_portfolio_url($uri)) {
4979: $thisallowed = &portfolio_access($uri);
4980: }
4981:
1.52 www 4982: # Full access at system, domain or course-wide level? Exit.
1.29 www 4983: if ($thisallowed=~/F/) {
4984: return 'F';
4985: }
4986:
1.52 www 4987: # If this is generating or modifying users, exit with special codes
1.29 www 4988:
1.643 www 4989: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
4990: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 4991: my ($audom,$auname)=split('/',$uri);
1.643 www 4992: # no author name given, so this just checks on the general right to make a co-author in this domain
4993: unless ($auname) { return $thisallowed; }
4994: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 4995: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
4996: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
4997: ($audom ne $env{'request.role.domain'}))) { return ''; }
4998: }
1.52 www 4999: return $thisallowed;
5000: }
5001: #
1.103 harris41 5002: # Gathered so far: system, domain and course wide privileges
1.52 www 5003: #
5004: # Course: See if uri or referer is an individual resource that is part of
5005: # the course
5006:
1.620 albertel 5007: if ($env{'request.course.id'}) {
1.232 www 5008:
1.620 albertel 5009: $courseprivid=$env{'request.course.id'};
5010: if ($env{'request.course.sec'}) {
5011: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 5012: }
5013: $courseprivid=~s/\_/\//;
5014: my $checkreferer=1;
1.232 www 5015: my ($match,$cond)=&is_on_map($uri);
5016: if ($match) {
5017: $statecond=$cond;
1.620 albertel 5018: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5019: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5020: $thisallowed.=$1;
5021: $checkreferer=0;
5022: }
1.29 www 5023: }
1.83 www 5024:
1.148 www 5025: if ($checkreferer) {
1.620 albertel 5026: my $refuri=$env{'httpref.'.$orguri};
1.148 www 5027: unless ($refuri) {
1.800 albertel 5028: foreach my $key (keys(%env)) {
5029: if ($key=~/^httpref\..*\*/) {
5030: my $pattern=$key;
1.156 www 5031: $pattern=~s/^httpref\.\/res\///;
1.148 www 5032: $pattern=~s/\*/\[\^\/\]\+/g;
5033: $pattern=~s/\//\\\//g;
1.152 www 5034: if ($orguri=~/$pattern/) {
1.800 albertel 5035: $refuri=$env{$key};
1.148 www 5036: }
5037: }
1.191 harris41 5038: }
1.148 www 5039: }
1.232 www 5040:
1.148 www 5041: if ($refuri) {
1.152 www 5042: $refuri=&declutter($refuri);
1.232 www 5043: my ($match,$cond)=&is_on_map($refuri);
5044: if ($match) {
5045: my $refstatecond=$cond;
1.620 albertel 5046: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5047: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5048: $thisallowed.=$1;
1.53 www 5049: $uri=$refuri;
5050: $statecond=$refstatecond;
1.52 www 5051: }
5052: }
1.148 www 5053: }
1.29 www 5054: }
1.52 www 5055: }
1.29 www 5056:
1.52 www 5057: #
1.103 harris41 5058: # Gathered now: all privileges that could apply, and condition number
1.52 www 5059: #
5060: #
5061: # Full or no access?
5062: #
1.29 www 5063:
1.52 www 5064: if ($thisallowed=~/F/) {
5065: return 'F';
5066: }
1.29 www 5067:
1.52 www 5068: unless ($thisallowed) {
5069: return '';
5070: }
1.29 www 5071:
1.52 www 5072: # Restrictions exist, deal with them
5073: #
5074: # C:according to course preferences
5075: # R:according to resource settings
5076: # L:unless locked
5077: # X:according to user session state
5078: #
5079:
5080: # Possibly locked functionality, check all courses
1.54 www 5081: # Locks might take effect only after 10 minutes cache expiration for other
5082: # courses, and 2 minutes for current course
1.52 www 5083:
5084: my $envkey;
5085: if ($thisallowed=~/L/) {
1.1000 raeburn 5086: foreach $envkey (keys(%env)) {
1.54 www 5087: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
5088: my $courseid=$2;
5089: my $roleid=$1.'.'.$2;
1.92 www 5090: $courseid=~s/^\///;
1.54 www 5091: my $expiretime=600;
1.620 albertel 5092: if ($env{'request.role'} eq $roleid) {
1.54 www 5093: $expiretime=120;
5094: }
5095: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
5096: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 5097: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 5098: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 5099: }
1.620 albertel 5100: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
5101: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
5102: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
5103: &log($env{'user.domain'},$env{'user.name'},
5104: $env{'user.home'},
1.57 www 5105: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 5106: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5107: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5108: return '';
5109: }
5110: }
1.620 albertel 5111: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
5112: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
5113: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
5114: &log($env{'user.domain'},$env{'user.name'},
5115: $env{'user.home'},
1.57 www 5116: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 5117: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5118: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5119: return '';
5120: }
5121: }
5122: }
1.29 www 5123: }
1.52 www 5124: }
5125:
5126: #
5127: # Rest of the restrictions depend on selected course
5128: #
5129:
1.620 albertel 5130: unless ($env{'request.course.id'}) {
1.766 albertel 5131: if ($thisallowed eq 'A') {
5132: return 'A';
1.814 raeburn 5133: } elsif ($thisallowed eq 'B') {
5134: return 'B';
1.766 albertel 5135: } else {
5136: return '1';
5137: }
1.52 www 5138: }
1.29 www 5139:
1.52 www 5140: #
5141: # Now user is definitely in a course
5142: #
1.53 www 5143:
5144:
5145: # Course preferences
5146:
5147: if ($thisallowed=~/C/) {
1.620 albertel 5148: my $rolecode=(split(/\./,$env{'request.role'}))[0];
5149: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
5150: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 5151: =~/\Q$rolecode\E/) {
1.689 albertel 5152: if ($priv ne 'pch') {
5153: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5154: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
5155: $env{'request.course.id'});
5156: }
1.237 www 5157: return '';
5158: }
5159:
1.620 albertel 5160: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 5161: =~/\Q$unamedom\E/) {
1.689 albertel 5162: if ($priv ne 'pch') {
5163: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
5164: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
5165: $env{'request.course.id'});
5166: }
1.54 www 5167: return '';
5168: }
1.53 www 5169: }
5170:
5171: # Resource preferences
5172:
5173: if ($thisallowed=~/R/) {
1.620 albertel 5174: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 5175: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 5176: if ($priv ne 'pch') {
5177: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5178: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
5179: }
5180: return '';
1.54 www 5181: }
1.53 www 5182: }
1.30 www 5183:
1.246 www 5184: # Restricted by state or randomout?
1.30 www 5185:
1.52 www 5186: if ($thisallowed=~/X/) {
1.620 albertel 5187: if ($env{'acc.randomout'}) {
1.579 albertel 5188: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 5189: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 5190: return '';
5191: }
1.247 www 5192: }
5193: if (&condval($statecond)) {
1.52 www 5194: return '2';
5195: } else {
5196: return '';
5197: }
5198: }
1.30 www 5199:
1.766 albertel 5200: if ($thisallowed eq 'A') {
5201: return 'A';
1.814 raeburn 5202: } elsif ($thisallowed eq 'B') {
5203: return 'B';
1.766 albertel 5204: }
1.52 www 5205: return 'F';
1.232 www 5206: }
5207:
1.710 albertel 5208: sub split_uri_for_cond {
5209: my $uri=&deversion(&declutter(shift));
5210: my @uriparts=split(/\//,$uri);
5211: my $filename=pop(@uriparts);
5212: my $pathname=join('/',@uriparts);
5213: return ($pathname,$filename);
5214: }
1.232 www 5215: # --------------------------------------------------- Is a resource on the map?
5216:
5217: sub is_on_map {
1.710 albertel 5218: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 5219: #Trying to find the conditional for the file
1.620 albertel 5220: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 5221: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 5222: if ($match) {
1.289 bowersj2 5223: return (1,$1);
5224: } else {
1.434 www 5225: return (0,0);
1.289 bowersj2 5226: }
1.12 www 5227: }
5228:
1.427 www 5229: # --------------------------------------------------------- Get symb from alias
5230:
5231: sub get_symb_from_alias {
5232: my $symb=shift;
5233: my ($map,$resid,$url)=&decode_symb($symb);
5234: # Already is a symb
5235: if ($url) { return $symb; }
5236: # Must be an alias
5237: my $aliassymb='';
5238: my %bighash;
1.620 albertel 5239: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 5240: &GDBM_READER(),0640)) {
5241: my $rid=$bighash{'mapalias_'.$symb};
5242: if ($rid) {
5243: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 5244: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
5245: $resid,$bighash{'src_'.$rid});
1.427 www 5246: }
5247: untie %bighash;
5248: }
5249: return $aliassymb;
5250: }
5251:
1.12 www 5252: # ----------------------------------------------------------------- Define Role
5253:
5254: sub definerole {
5255: if (allowed('mcr','/')) {
5256: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 5257: foreach my $role (split(':',$sysrole)) {
5258: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5259: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
5260: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
5261: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5262: return "refused:s:$crole&$cqual";
5263: }
5264: }
1.191 harris41 5265: }
1.800 albertel 5266: foreach my $role (split(':',$domrole)) {
5267: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5268: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
5269: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
5270: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 5271: return "refused:d:$crole&$cqual";
5272: }
5273: }
1.191 harris41 5274: }
1.800 albertel 5275: foreach my $role (split(':',$courole)) {
5276: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5277: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
5278: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
5279: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5280: return "refused:c:$crole&$cqual";
5281: }
5282: }
1.191 harris41 5283: }
1.620 albertel 5284: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
5285: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5286: "rolesdef_$rolename=".
5287: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 5288: return reply($command,$env{'user.home'});
1.12 www 5289: } else {
5290: return 'refused';
5291: }
1.105 harris41 5292: }
5293:
5294: # ---------------- Make a metadata query against the network of library servers
5295:
5296: sub metadata_query {
1.244 matthew 5297: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 5298: my %rhash;
1.845 albertel 5299: my %libserv = &all_library();
1.244 matthew 5300: my @server_list = (defined($server_array) ? @$server_array
5301: : keys(%libserv) );
5302: for my $server (@server_list) {
1.118 harris41 5303: unless ($custom or $customshow) {
5304: my $reply=&reply("querysend:".&escape($query),$server);
5305: $rhash{$server}=$reply;
5306: }
5307: else {
5308: my $reply=&reply("querysend:".&escape($query).':'.
5309: &escape($custom).':'.&escape($customshow),
5310: $server);
5311: $rhash{$server}=$reply;
5312: }
1.112 harris41 5313: }
1.118 harris41 5314: return \%rhash;
1.240 www 5315: }
5316:
5317: # ----------------------------------------- Send log queries and wait for reply
5318:
5319: sub log_query {
5320: my ($uname,$udom,$query,%filters)=@_;
5321: my $uhome=&homeserver($uname,$udom);
5322: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 5323: my $uhost=&hostname($uhome);
1.800 albertel 5324: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 5325: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
5326: $uhome);
1.479 albertel 5327: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 5328: return get_query_reply($queryid);
5329: }
5330:
1.818 raeburn 5331: # -------------------------- Update MySQL table for portfolio file
5332:
5333: sub update_portfolio_table {
1.821 raeburn 5334: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 5335: if ($group ne '') {
5336: $file_name =~s /^\Q$group\E//;
5337: }
1.818 raeburn 5338: my $homeserver = &homeserver($uname,$udom);
5339: my $queryid=
1.821 raeburn 5340: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
5341: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 5342: my $reply = &get_query_reply($queryid);
5343: return $reply;
5344: }
5345:
1.899 raeburn 5346: # -------------------------- Update MySQL allusers table
5347:
5348: sub update_allusers_table {
5349: my ($uname,$udom,$names) = @_;
5350: my $homeserver = &homeserver($uname,$udom);
5351: my $queryid=
5352: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
5353: 'lastname='.&escape($names->{'lastname'}).'%%'.
5354: 'firstname='.&escape($names->{'firstname'}).'%%'.
5355: 'middlename='.&escape($names->{'middlename'}).'%%'.
5356: 'generation='.&escape($names->{'generation'}).'%%'.
5357: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
5358: 'id='.&escape($names->{'id'}),$homeserver);
5359: my $reply = &get_query_reply($queryid);
5360: return $reply;
5361: }
5362:
1.508 raeburn 5363: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 5364:
5365: sub fetch_enrollment_query {
1.511 raeburn 5366: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 5367: my $homeserver;
1.547 raeburn 5368: my $maxtries = 1;
1.508 raeburn 5369: if ($context eq 'automated') {
5370: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 5371: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 5372: } else {
5373: $homeserver = &homeserver($cnum,$dom);
5374: }
1.838 albertel 5375: my $host=&hostname($homeserver);
1.506 raeburn 5376: my $cmd = '';
1.1000 raeburn 5377: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 5378: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 5379: }
5380: $cmd =~ s/%%$//;
5381: $cmd = &escape($cmd);
5382: my $query = 'fetchenrollment';
1.620 albertel 5383: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 5384: unless ($queryid=~/^\Q$host\E\_/) {
5385: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
5386: return 'error: '.$queryid;
5387: }
1.506 raeburn 5388: my $reply = &get_query_reply($queryid);
1.547 raeburn 5389: my $tries = 1;
5390: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5391: $reply = &get_query_reply($queryid);
5392: $tries ++;
5393: }
1.526 raeburn 5394: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 5395: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 5396: } else {
1.901 albertel 5397: my @responses = split(/:/,$reply);
1.515 raeburn 5398: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 5399: foreach my $line (@responses) {
5400: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 5401: $$replyref{$key} = $value;
5402: }
5403: } else {
1.506 raeburn 5404: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 5405: foreach my $line (@responses) {
5406: my ($key,$value) = split(/=/,$line);
1.506 raeburn 5407: $$replyref{$key} = $value;
5408: if ($value > 0) {
1.800 albertel 5409: foreach my $item (@{$$affiliatesref{$key}}) {
5410: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 5411: my $destname = $pathname.'/'.$filename;
5412: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 5413: if ($xml_classlist =~ /^error/) {
5414: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
5415: } else {
1.506 raeburn 5416: if ( open(FILE,">$destname") ) {
5417: print FILE &unescape($xml_classlist);
5418: close(FILE);
1.526 raeburn 5419: } else {
5420: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 5421: }
5422: }
5423: }
5424: }
5425: }
5426: }
5427: return 'ok';
5428: }
5429: return 'error';
5430: }
5431:
1.242 www 5432: sub get_query_reply {
5433: my $queryid=shift;
1.240 www 5434: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
5435: my $reply='';
5436: for (1..100) {
5437: sleep 2;
5438: if (-e $replyfile.'.end') {
1.448 albertel 5439: if (open(my $fh,$replyfile)) {
1.904 albertel 5440: $reply = join('',<$fh>);
5441: close($fh);
1.240 www 5442: } else { return 'error: reply_file_error'; }
1.242 www 5443: return &unescape($reply);
5444: }
1.240 www 5445: }
1.242 www 5446: return 'timeout:'.$queryid;
1.240 www 5447: }
5448:
5449: sub courselog_query {
1.241 www 5450: #
5451: # possible filters:
5452: # url: url or symb
5453: # username
5454: # domain
5455: # action: view, submit, grade
5456: # start: timestamp
5457: # end: timestamp
5458: #
1.240 www 5459: my (%filters)=@_;
1.620 albertel 5460: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 5461: if ($filters{'url'}) {
5462: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
5463: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
5464: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
5465: }
1.620 albertel 5466: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
5467: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 5468: return &log_query($cname,$cdom,'courselog',%filters);
5469: }
5470:
5471: sub userlog_query {
1.858 raeburn 5472: #
5473: # possible filters:
5474: # action: log check role
5475: # start: timestamp
5476: # end: timestamp
5477: #
1.240 www 5478: my ($uname,$udom,%filters)=@_;
5479: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 5480: }
5481:
1.506 raeburn 5482: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
5483:
5484: sub auto_run {
1.508 raeburn 5485: my ($cnum,$cdom) = @_;
1.876 raeburn 5486: my $response = 0;
5487: my $settings;
5488: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
5489: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
5490: $settings = $domconfig{'autoenroll'};
5491: if ($settings->{'run'} eq '1') {
5492: $response = 1;
5493: }
5494: } else {
1.934 raeburn 5495: my $homeserver;
5496: if (&is_course($cdom,$cnum)) {
5497: $homeserver = &homeserver($cnum,$cdom);
5498: } else {
5499: $homeserver = &domain($cdom,'primary');
5500: }
5501: if ($homeserver ne 'no_host') {
5502: $response = &reply('autorun:'.$cdom,$homeserver);
5503: }
1.876 raeburn 5504: }
1.506 raeburn 5505: return $response;
5506: }
1.776 albertel 5507:
1.506 raeburn 5508: sub auto_get_sections {
1.508 raeburn 5509: my ($cnum,$cdom,$inst_coursecode) = @_;
5510: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 5511: my @secs = ();
1.511 raeburn 5512: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 5513: unless ($response eq 'refused') {
1.901 albertel 5514: @secs = split(/:/,$response);
1.506 raeburn 5515: }
5516: return @secs;
5517: }
1.776 albertel 5518:
1.506 raeburn 5519: sub auto_new_course {
1.508 raeburn 5520: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
5521: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 5522: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 5523: return $response;
5524: }
1.776 albertel 5525:
1.506 raeburn 5526: sub auto_validate_courseID {
1.508 raeburn 5527: my ($cnum,$cdom,$inst_course_id) = @_;
5528: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 5529: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 5530: return $response;
5531: }
1.776 albertel 5532:
1.506 raeburn 5533: sub auto_create_password {
1.873 raeburn 5534: my ($cnum,$cdom,$authparam,$udom) = @_;
5535: my ($homeserver,$response);
1.506 raeburn 5536: my $create_passwd = 0;
5537: my $authchk = '';
1.873 raeburn 5538: if ($udom =~ /^$match_domain$/) {
5539: $homeserver = &domain($udom,'primary');
5540: }
5541: if ($homeserver eq '') {
5542: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5543: $homeserver = &homeserver($cnum,$cdom);
5544: }
5545: }
5546: if ($homeserver eq '') {
5547: $authchk = 'nodomain';
1.506 raeburn 5548: } else {
1.873 raeburn 5549: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
5550: if ($response eq 'refused') {
5551: $authchk = 'refused';
5552: } else {
1.901 albertel 5553: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 5554: }
1.506 raeburn 5555: }
5556: return ($authparam,$create_passwd,$authchk);
5557: }
5558:
1.706 raeburn 5559: sub auto_photo_permission {
5560: my ($cnum,$cdom,$students) = @_;
5561: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 5562: my ($outcome,$perm_reqd,$conditions) =
5563: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 5564: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5565: return (undef,undef);
5566: }
1.706 raeburn 5567: return ($outcome,$perm_reqd,$conditions);
5568: }
5569:
5570: sub auto_checkphotos {
5571: my ($uname,$udom,$pid) = @_;
5572: my $homeserver = &homeserver($uname,$udom);
5573: my ($result,$resulttype);
5574: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 5575: &escape($uname).':'.&escape($pid),
5576: $homeserver));
1.709 albertel 5577: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5578: return (undef,undef);
5579: }
1.706 raeburn 5580: if ($outcome) {
5581: ($result,$resulttype) = split(/:/,$outcome);
5582: }
5583: return ($result,$resulttype);
5584: }
5585:
5586: sub auto_photochoice {
5587: my ($cnum,$cdom) = @_;
5588: my $homeserver = &homeserver($cnum,$cdom);
5589: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 5590: &escape($cdom),
5591: $homeserver)));
1.709 albertel 5592: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5593: return (undef,undef);
5594: }
1.706 raeburn 5595: return ($update,$comment);
5596: }
5597:
5598: sub auto_photoupdate {
5599: my ($affiliatesref,$dom,$cnum,$photo) = @_;
5600: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 5601: my $host=&hostname($homeserver);
1.706 raeburn 5602: my $cmd = '';
5603: my $maxtries = 1;
1.800 albertel 5604: foreach my $affiliate (keys(%{$affiliatesref})) {
5605: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 5606: }
5607: $cmd =~ s/%%$//;
5608: $cmd = &escape($cmd);
5609: my $query = 'institutionalphotos';
5610: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
5611: unless ($queryid=~/^\Q$host\E\_/) {
5612: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
5613: return 'error: '.$queryid;
5614: }
5615: my $reply = &get_query_reply($queryid);
5616: my $tries = 1;
5617: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5618: $reply = &get_query_reply($queryid);
5619: $tries ++;
5620: }
5621: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
5622: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
5623: } else {
5624: my @responses = split(/:/,$reply);
5625: my $outcome = shift(@responses);
5626: foreach my $item (@responses) {
5627: my ($key,$value) = split(/=/,$item);
5628: $$photo{$key} = $value;
5629: }
5630: return $outcome;
5631: }
5632: return 'error';
5633: }
5634:
1.521 raeburn 5635: sub auto_instcode_format {
1.793 albertel 5636: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
5637: $cat_order) = @_;
1.521 raeburn 5638: my $courses = '';
1.772 raeburn 5639: my @homeservers;
1.521 raeburn 5640: if ($caller eq 'global') {
1.841 albertel 5641: my %servers = &get_servers($codedom,'library');
5642: foreach my $tryserver (keys(%servers)) {
5643: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5644: push(@homeservers,$tryserver);
5645: }
1.584 raeburn 5646: }
1.521 raeburn 5647: } else {
1.772 raeburn 5648: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 5649: }
1.793 albertel 5650: foreach my $code (keys(%{$instcodes})) {
5651: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 5652: }
5653: chop($courses);
1.772 raeburn 5654: my $ok_response = 0;
5655: my $response;
5656: while (@homeservers > 0 && $ok_response == 0) {
5657: my $server = shift(@homeservers);
5658: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
5659: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
5660: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 5661: split(/:/,$response);
1.772 raeburn 5662: %{$codes} = (%{$codes},&str2hash($codes_str));
5663: push(@{$codetitles},&str2array($codetitles_str));
5664: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
5665: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
5666: $ok_response = 1;
5667: }
5668: }
5669: if ($ok_response) {
1.521 raeburn 5670: return 'ok';
1.772 raeburn 5671: } else {
5672: return $response;
1.521 raeburn 5673: }
5674: }
5675:
1.792 raeburn 5676: sub auto_instcode_defaults {
5677: my ($domain,$returnhash,$code_order) = @_;
5678: my @homeservers;
1.841 albertel 5679:
5680: my %servers = &get_servers($domain,'library');
5681: foreach my $tryserver (keys(%servers)) {
5682: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5683: push(@homeservers,$tryserver);
5684: }
1.792 raeburn 5685: }
1.841 albertel 5686:
1.792 raeburn 5687: my $response;
1.841 albertel 5688: foreach my $server (@homeservers) {
1.792 raeburn 5689: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 5690: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
5691:
5692: foreach my $pair (split(/\&/,$response)) {
5693: my ($name,$value)=split(/\=/,$pair);
5694: if ($name eq 'code_order') {
5695: @{$code_order} = split(/\&/,&unescape($value));
5696: } else {
5697: $returnhash->{&unescape($name)}=&unescape($value);
5698: }
5699: }
5700: return 'ok';
1.792 raeburn 5701: }
1.841 albertel 5702:
5703: return $response;
1.1003 raeburn 5704: }
5705:
5706: sub auto_possible_instcodes {
1.1005 raeburn 5707: my ($domain,$codetitles,$cat_titles,$cat_orders) = @_;
1.1003 raeburn 5708: my (@homeservers,$uhome);
5709: if (defined(&domain($domain,'primary'))) {
5710: $uhome=&domain($domain,'primary');
5711: push(@homeservers,&domain($domain,'primary'));
5712: } else {
5713: my %servers = &get_servers($domain,'library');
5714: foreach my $tryserver (keys(%servers)) {
5715: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5716: push(@homeservers,$tryserver);
5717: }
5718: }
5719: }
5720: my $response;
5721: foreach my $server (@homeservers) {
5722: $response=&reply('autopossibleinstcodes:'.$domain,$server);
5723: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
5724: my ($codetitlestr,$cat_title,$cat_order) = split(':',$response);
5725: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
5726: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 5727: my ($name,$value)=split('=',$item);
5728: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5729: }
5730: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 5731: my ($name,$value)=split('=',$item);
5732: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5733: }
5734: return 'ok';
5735: }
5736: return $response;
5737: }
1.792 raeburn 5738:
1.777 albertel 5739: sub auto_validate_class_sec {
1.918 raeburn 5740: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 5741: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 5742: my $ownerlist;
5743: if (ref($owners) eq 'ARRAY') {
5744: $ownerlist = join(',',@{$owners});
5745: } else {
5746: $ownerlist = $owners;
5747: }
1.773 raeburn 5748: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 5749: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 5750: return $response;
5751: }
5752:
1.679 raeburn 5753: # ------------------------------------------------------- Course Group routines
5754:
5755: sub get_coursegroups {
1.809 raeburn 5756: my ($cdom,$cnum,$group,$namespace) = @_;
5757: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 5758: }
5759:
1.679 raeburn 5760: sub modify_coursegroup {
5761: my ($cdom,$cnum,$groupsettings) = @_;
5762: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
5763: }
5764:
1.809 raeburn 5765: sub toggle_coursegroup_status {
5766: my ($cdom,$cnum,$group,$action) = @_;
5767: my ($from_namespace,$to_namespace);
5768: if ($action eq 'delete') {
5769: $from_namespace = 'coursegroups';
5770: $to_namespace = 'deleted_groups';
5771: } else {
5772: $from_namespace = 'deleted_groups';
5773: $to_namespace = 'coursegroups';
5774: }
5775: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 5776: if (my $tmp = &error(%curr_group)) {
5777: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
5778: return ('read error',$tmp);
5779: } else {
5780: my %savedsettings = %curr_group;
1.809 raeburn 5781: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 5782: my $deloutcome;
5783: if ($result eq 'ok') {
1.809 raeburn 5784: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 5785: } else {
5786: return ('write error',$result);
5787: }
5788: if ($deloutcome eq 'ok') {
5789: return 'ok';
5790: } else {
5791: return ('delete error',$deloutcome);
5792: }
5793: }
5794: }
5795:
1.679 raeburn 5796: sub modify_group_roles {
1.957 raeburn 5797: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 5798: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
5799: my $role = 'gr/'.&escape($userprivs);
5800: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 5801: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 5802: if ($result eq 'ok') {
5803: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
5804: }
1.679 raeburn 5805: return $result;
5806: }
5807:
5808: sub modify_coursegroup_membership {
5809: my ($cdom,$cnum,$membership) = @_;
5810: my $result = &put('groupmembership',$membership,$cdom,$cnum);
5811: return $result;
5812: }
5813:
1.682 raeburn 5814: sub get_active_groups {
5815: my ($udom,$uname,$cdom,$cnum) = @_;
5816: my $now = time;
5817: my %groups = ();
5818: foreach my $key (keys(%env)) {
1.811 albertel 5819: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 5820: my ($start,$end) = split(/\./,$env{$key});
5821: if (($end!=0) && ($end<$now)) { next; }
5822: if (($start!=0) && ($start>$now)) { next; }
5823: if ($1 eq $cdom && $2 eq $cnum) {
5824: $groups{$3} = $env{$key} ;
5825: }
5826: }
5827: }
5828: return %groups;
5829: }
5830:
1.683 raeburn 5831: sub get_group_membership {
5832: my ($cdom,$cnum,$group) = @_;
5833: return(&dump('groupmembership',$cdom,$cnum,$group));
5834: }
5835:
5836: sub get_users_groups {
5837: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 5838: my @usersgroups;
1.683 raeburn 5839: my $cachetime=1800;
5840:
5841: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 5842: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
5843: if (defined($cached)) {
1.734 albertel 5844: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 5845: } else {
5846: $grouplist = '';
1.816 raeburn 5847: my $courseurl = &courseid_to_courseurl($courseid);
5848: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 5849: my $access_end = $env{'course.'.$courseid.
5850: '.default_enrollment_end_date'};
5851: my $now = time;
5852: foreach my $key (keys(%roleshash)) {
5853: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
5854: my $group = $1;
5855: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
5856: my $start = $2;
5857: my $end = $1;
5858: if ($start == -1) { next; } # deleted from group
5859: if (($start!=0) && ($start>$now)) { next; }
5860: if (($end!=0) && ($end<$now)) {
5861: if ($access_end && $access_end < $now) {
5862: if ($access_end - $end < 86400) {
5863: push(@usersgroups,$group);
1.733 raeburn 5864: }
5865: }
1.817 raeburn 5866: next;
1.733 raeburn 5867: }
1.817 raeburn 5868: push(@usersgroups,$group);
1.683 raeburn 5869: }
5870: }
5871: }
1.817 raeburn 5872: @usersgroups = &sort_course_groups($courseid,@usersgroups);
5873: $grouplist = join(':',@usersgroups);
5874: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 5875: }
1.733 raeburn 5876: return @usersgroups;
1.683 raeburn 5877: }
5878:
5879: sub devalidate_getgroups_cache {
5880: my ($udom,$uname,$cdom,$cnum)=@_;
5881: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 5882:
1.683 raeburn 5883: my $hashid="$udom:$uname:$courseid";
5884: &devalidate_cache_new('getgroups',$hashid);
5885: }
5886:
1.12 www 5887: # ------------------------------------------------------------------ Plain Text
5888:
5889: sub plaintext {
1.988 raeburn 5890: my ($short,$type,$cid,$forcedefault) = @_;
1.758 albertel 5891: if ($short =~ /^cr/) {
5892: return (split('/',$short))[-1];
5893: }
1.742 raeburn 5894: if (!defined($cid)) {
5895: $cid = $env{'request.course.id'};
5896: }
1.988 raeburn 5897: if (defined($cid) && ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '')) {
5898: unless ($forcedefault) {
5899: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
5900: &Apache::lonlocal::mt_escape(\$roletext);
5901: return &Apache::lonlocal::mt($roletext);
5902: }
1.742 raeburn 5903: }
5904: my %rolenames = (
5905: Course => 'std',
5906: Group => 'alt1',
5907: );
5908: if (defined($type) &&
5909: defined($rolenames{$type}) &&
5910: defined($prp{$short}{$rolenames{$type}})) {
5911: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
5912: } else {
5913: return &Apache::lonlocal::mt($prp{$short}{'std'});
5914: }
1.12 www 5915: }
5916:
5917: # ----------------------------------------------------------------- Assign Role
5918:
5919: sub assignrole {
1.957 raeburn 5920: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
5921: $context)=@_;
1.21 www 5922: my $mrole;
5923: if ($role =~ /^cr\//) {
1.393 www 5924: my $cwosec=$url;
1.811 albertel 5925: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 5926: unless (&allowed('ccr',$cwosec)) {
1.104 www 5927: &logthis('Refused custom assignrole: '.
5928: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 5929: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 5930: return 'refused';
5931: }
1.21 www 5932: $mrole='cr';
1.678 raeburn 5933: } elsif ($role =~ /^gr\//) {
5934: my $cwogrp=$url;
1.811 albertel 5935: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 5936: unless (&allowed('mdg',$cwogrp)) {
5937: &logthis('Refused group assignrole: '.
5938: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
5939: $env{'user.name'}.' at '.$env{'user.domain'});
5940: return 'refused';
5941: }
5942: $mrole='gr';
1.21 www 5943: } else {
1.82 www 5944: my $cwosec=$url;
1.811 albertel 5945: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 5946: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
5947: my $refused;
5948: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
5949: if (!(&allowed('c'.$role,$url))) {
5950: $refused = 1;
5951: }
5952: } else {
5953: $refused = 1;
5954: }
1.947 raeburn 5955: if ($refused) {
5956: if (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
5957: $refused = '';
5958: } else {
5959: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
5960: ' '.$role.' '.$end.' '.$start.' by '.
5961: $env{'user.name'}.' at '.$env{'user.domain'});
5962: return 'refused';
5963: }
1.932 raeburn 5964: }
1.104 www 5965: }
1.21 www 5966: $mrole=$role;
5967: }
1.620 albertel 5968: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5969: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 5970: if ($end) { $command.='_'.$end; }
1.21 www 5971: if ($start) {
5972: if ($end) {
1.81 www 5973: $command.='_'.$start;
1.21 www 5974: } else {
1.81 www 5975: $command.='_0_'.$start;
1.21 www 5976: }
5977: }
1.739 raeburn 5978: my $origstart = $start;
5979: my $origend = $end;
1.957 raeburn 5980: my $delflag;
1.357 www 5981: # actually delete
5982: if ($deleteflag) {
1.373 www 5983: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 5984: # modify command to delete the role
1.620 albertel 5985: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 5986: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 5987: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 5988: # set start and finish to negative values for userrolelog
5989: $start=-1;
5990: $end=-1;
1.957 raeburn 5991: $delflag = 1;
1.357 www 5992: }
5993: }
5994: # send command
1.349 www 5995: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 5996: # log new user role if status is ok
1.349 www 5997: if ($answer eq 'ok') {
1.663 raeburn 5998: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 5999: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 6000: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 6001: unless ($role =~ /^gr/) {
6002: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 6003: $origstart,$selfenroll,$context);
1.739 raeburn 6004: }
1.349 www 6005: }
6006: return $answer;
1.169 harris41 6007: }
6008:
6009: # -------------------------------------------------- Modify user authentication
1.197 www 6010: # Overrides without validation
6011:
1.169 harris41 6012: sub modifyuserauth {
6013: my ($udom,$uname,$umode,$upass)=@_;
6014: my $uhome=&homeserver($uname,$udom);
1.197 www 6015: unless (&allowed('mau',$udom)) { return 'refused'; }
6016: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 6017: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6018: ' in domain '.$env{'request.role.domain'});
1.169 harris41 6019: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
6020: &escape($upass),$uhome);
1.620 albertel 6021: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 6022: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
6023: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
6024: &log($udom,,$uname,$uhome,
1.620 albertel 6025: 'Authentication changed by '.$env{'user.domain'}.', '.
6026: $env{'user.name'}.', '.$umode.
1.197 www 6027: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 6028: unless ($reply eq 'ok') {
1.197 www 6029: &logthis('Authentication mode error: '.$reply);
1.169 harris41 6030: return 'error: '.$reply;
6031: }
1.170 harris41 6032: return 'ok';
1.80 www 6033: }
6034:
1.81 www 6035: # --------------------------------------------------------------- Modify a user
1.80 www 6036:
1.81 www 6037: sub modifyuser {
1.206 matthew 6038: my ($udom, $uname, $uid,
6039: $umode, $upass, $first,
6040: $middle, $last, $gene,
1.963 raeburn 6041: $forceid, $desiredhome, $email, $inststatus)=@_;
1.807 albertel 6042: $udom= &LONCAPA::clean_domain($udom);
6043: $uname=&LONCAPA::clean_username($uname);
1.81 www 6044: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 6045: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 6046: $last.', '.$gene.'(forceid: '.$forceid.')'.
6047: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
6048: ' desiredhome not specified').
1.620 albertel 6049: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6050: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 6051: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 6052: # ----------------------------------------------------------------- Create User
1.406 albertel 6053: if (($uhome eq 'no_host') &&
6054: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 6055: my $unhome='';
1.844 albertel 6056: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 6057: $unhome = $desiredhome;
1.620 albertel 6058: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
6059: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 6060: } else { # load balancing routine for determining $unhome
1.81 www 6061: my $loadm=10000000;
1.841 albertel 6062: my %servers = &get_servers($udom,'library');
6063: foreach my $tryserver (keys(%servers)) {
6064: my $answer=reply('load',$tryserver);
6065: if (($answer=~/\d+/) && ($answer<$loadm)) {
6066: $loadm=$answer;
6067: $unhome=$tryserver;
6068: }
1.80 www 6069: }
6070: }
6071: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 6072: return 'error: unable to find a home server for '.$uname.
6073: ' in domain '.$udom;
1.80 www 6074: }
6075: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
6076: &escape($upass),$unhome);
6077: unless ($reply eq 'ok') {
6078: return 'error: '.$reply;
6079: }
1.230 stredwic 6080: $uhome=&homeserver($uname,$udom,'true');
1.80 www 6081: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 6082: return 'error: unable verify users home machine.';
1.80 www 6083: }
1.209 matthew 6084: } # End of creation of new user
1.80 www 6085: # ---------------------------------------------------------------------- Add ID
6086: if ($uid) {
6087: $uid=~tr/A-Z/a-z/;
6088: my %uidhash=&idrget($udom,$uname);
1.196 www 6089: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
6090: && (!$forceid)) {
1.80 www 6091: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 6092: return 'error: user id "'.$uid.'" does not match '.
6093: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 6094: }
6095: } else {
6096: &idput($udom,($uname => $uid));
6097: }
6098: }
6099: # -------------------------------------------------------------- Add names, etc
1.313 matthew 6100: my @tmp=&get('environment',
1.899 raeburn 6101: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 6102: 'permanentemail','inststatus'],
1.134 albertel 6103: $udom,$uname);
1.313 matthew 6104: my %names;
6105: if ($tmp[0] =~ m/^error:.*/) {
6106: %names=();
6107: } else {
6108: %names = @tmp;
6109: }
1.388 www 6110: #
6111: # Make sure to not trash student environment if instructor does not bother
6112: # to supply name and email information
6113: #
6114: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 6115: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 6116: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 6117: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 6118: if ($email) {
6119: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 6120: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 6121: }
1.899 raeburn 6122: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 6123: if (defined($inststatus)) {
6124: $names{'inststatus'} = '';
6125: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
6126: if (ref($usertypes) eq 'HASH') {
6127: my @okstatuses;
6128: foreach my $item (split(/:/,$inststatus)) {
6129: if (defined($usertypes->{$item})) {
6130: push(@okstatuses,$item);
6131: }
6132: }
6133: if (@okstatuses) {
6134: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
6135: }
6136: }
6137: }
1.134 albertel 6138: my $reply = &put('environment', \%names, $udom,$uname);
6139: if ($reply ne 'ok') { return 'error: '.$reply; }
1.899 raeburn 6140: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
1.680 www 6141: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.963 raeburn 6142: my $logmsg = 'Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
6143: $umode.', '.$first.', '.$middle.', '.
6144: $last.', '.$gene.', '.$email.', '.$inststatus;
6145: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
6146: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
6147: } else {
6148: $logmsg .= ' during self creation';
6149: }
6150: &logthis($logmsg);
1.134 albertel 6151: return 'ok';
1.80 www 6152: }
6153:
1.81 www 6154: # -------------------------------------------------------------- Modify student
1.80 www 6155:
1.81 www 6156: sub modifystudent {
6157: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 6158: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 6159: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 6160: if (!$cid) {
1.620 albertel 6161: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6162: return 'not_in_class';
6163: }
1.80 www 6164: }
6165: # --------------------------------------------------------------- Make the user
1.81 www 6166: my $reply=&modifyuser
1.209 matthew 6167: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 6168: $desiredhome,$email,$inststatus);
1.80 www 6169: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 6170: # This will cause &modify_student_enrollment to get the uid from the
6171: # students environment
6172: $uid = undef if (!$forceid);
1.455 albertel 6173: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 6174: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 6175: return $reply;
6176: }
6177:
6178: sub modify_student_enrollment {
1.957 raeburn 6179: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 6180: my ($cdom,$cnum,$chome);
6181: if (!$cid) {
1.620 albertel 6182: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6183: return 'not_in_class';
6184: }
1.620 albertel 6185: $cdom=$env{'course.'.$cid.'.domain'};
6186: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 6187: } else {
6188: ($cdom,$cnum)=split(/_/,$cid);
6189: }
1.620 albertel 6190: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 6191: if (!$chome) {
1.457 raeburn 6192: $chome=&homeserver($cnum,$cdom);
1.297 matthew 6193: }
1.455 albertel 6194: if (!$chome) { return 'unknown_course'; }
1.297 matthew 6195: # Make sure the user exists
1.81 www 6196: my $uhome=&homeserver($uname,$udom);
6197: if (($uhome eq '') || ($uhome eq 'no_host')) {
6198: return 'error: no such user';
6199: }
1.297 matthew 6200: # Get student data if we were not given enough information
6201: if (!defined($first) || $first eq '' ||
6202: !defined($last) || $last eq '' ||
6203: !defined($uid) || $uid eq '' ||
6204: !defined($middle) || $middle eq '' ||
6205: !defined($gene) || $gene eq '') {
1.294 matthew 6206: # They did not supply us with enough data to enroll the student, so
6207: # we need to pick up more information.
1.297 matthew 6208: my %tmp = &get('environment',
1.294 matthew 6209: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 6210: ,$udom,$uname);
6211:
1.800 albertel 6212: #foreach my $key (keys(%tmp)) {
6213: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 6214: #}
1.294 matthew 6215: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
6216: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
6217: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 6218: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 6219: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
6220: }
1.556 albertel 6221: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 6222: my $reply=cput('classlist',
6223: {"$uname:$udom" =>
1.515 raeburn 6224: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 6225: $cdom,$cnum);
1.81 www 6226: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
6227: return 'error: '.$reply;
1.652 albertel 6228: } else {
6229: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 6230: }
1.297 matthew 6231: # Add student role to user
1.83 www 6232: my $uurl='/'.$cid;
1.81 www 6233: $uurl=~s/\_/\//g;
6234: if ($usec) {
6235: $uurl.='/'.$usec;
6236: }
1.957 raeburn 6237: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 6238: }
6239:
1.556 albertel 6240: sub format_name {
6241: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
6242: my $name;
6243: if ($first ne 'lastname') {
6244: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
6245: } else {
6246: if ($lastname=~/\S/) {
6247: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
6248: $name=~s/\s+,/,/;
6249: } else {
6250: $name.= $firstname.' '.$middlename.' '.$generation;
6251: }
6252: }
6253: $name=~s/^\s+//;
6254: $name=~s/\s+$//;
6255: $name=~s/\s+/ /g;
6256: return $name;
6257: }
6258:
1.84 www 6259: # ------------------------------------------------- Write to course preferences
6260:
6261: sub writecoursepref {
6262: my ($courseid,%prefs)=@_;
6263: $courseid=~s/^\///;
6264: $courseid=~s/\_/\//g;
6265: my ($cdomain,$cnum)=split(/\//,$courseid);
6266: my $chome=homeserver($cnum,$cdomain);
6267: if (($chome eq '') || ($chome eq 'no_host')) {
6268: return 'error: no such course';
6269: }
6270: my $cstring='';
1.800 albertel 6271: foreach my $pref (keys(%prefs)) {
6272: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 6273: }
1.84 www 6274: $cstring=~s/\&$//;
6275: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
6276: }
6277:
6278: # ---------------------------------------------------------- Make/modify course
6279:
6280: sub createcourse {
1.741 raeburn 6281: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
6282: $course_owner,$crstype)=@_;
1.84 www 6283: $url=&declutter($url);
6284: my $cid='';
1.264 matthew 6285: unless (&allowed('ccc',$udom)) {
1.84 www 6286: return 'refused';
6287: }
6288: # ------------------------------------------------------------------- Create ID
1.674 www 6289: my $uname=int(1+rand(9)).
6290: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
6291: substr($$.time,0,5).unpack("H8",pack("I32",time)).
1.84 www 6292: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
6293: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 6294: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 6295: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6296: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
6297: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 6298: $uhome=&homeserver($uname,$udom,'true');
1.84 www 6299: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6300: return 'error: unable to generate unique course-ID';
6301: }
6302: }
1.264 matthew 6303: # ------------------------------------------------ Check supplied server name
1.620 albertel 6304: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 6305: if (! &is_library($course_server)) {
1.264 matthew 6306: return 'error:bad server name '.$course_server;
6307: }
1.84 www 6308: # ------------------------------------------------------------- Make the course
6309: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 6310: $course_server);
1.84 www 6311: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 6312: $uhome=&homeserver($uname,$udom,'true');
1.84 www 6313: if (($uhome eq '') || ($uhome eq 'no_host')) {
6314: return 'error: no such course';
6315: }
1.271 www 6316: # ----------------------------------------------------------------- Course made
1.516 raeburn 6317: # log existence
1.918 raeburn 6318: my $newcourse = {
6319: $udom.'_'.$uname => {
1.921 raeburn 6320: description => $description,
6321: inst_code => $inst_code,
6322: owner => $course_owner,
6323: type => $crstype,
1.918 raeburn 6324: },
6325: };
1.921 raeburn 6326: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 6327: # set toplevel url
1.271 www 6328: my $topurl=$url;
6329: unless ($nonstandard) {
6330: # ------------------------------------------ For standard courses, make top url
6331: my $mapurl=&clutter($url);
1.278 www 6332: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 6333: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 6334: <map>
6335: <resource id="1" type="start"></resource>
6336: <resource id="2" src="$mapurl"></resource>
6337: <resource id="3" type="finish"></resource>
6338: <link index="1" from="1" to="2"></link>
6339: <link index="2" from="2" to="3"></link>
6340: </map>
6341: ENDINITMAP
6342: $topurl=&declutter(
1.638 albertel 6343: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 6344: );
6345: }
6346: # ----------------------------------------------------------- Write preferences
1.84 www 6347: &writecoursepref($udom.'_'.$uname,
6348: ('description' => $description,
1.271 www 6349: 'url' => $topurl));
1.84 www 6350: return '/'.$udom.'/'.$uname;
6351: }
6352:
1.813 albertel 6353: sub is_course {
6354: my ($cdom,$cnum) = @_;
6355: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 6356: undef,'.');
1.813 albertel 6357: if (exists($courses{$cdom.'_'.$cnum})) {
6358: return 1;
6359: }
6360: return 0;
6361: }
6362:
1.21 www 6363: # ---------------------------------------------------------- Assign Custom Role
6364:
6365: sub assigncustomrole {
1.957 raeburn 6366: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6367: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 6368: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 6369: }
6370:
6371: # ----------------------------------------------------------------- Revoke Role
6372:
6373: sub revokerole {
1.957 raeburn 6374: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6375: my $now=time;
1.965 raeburn 6376: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 6377: }
6378:
6379: # ---------------------------------------------------------- Revoke Custom Role
6380:
6381: sub revokecustomrole {
1.957 raeburn 6382: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6383: my $now=time;
1.357 www 6384: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 6385: $deleteflag,$selfenroll,$context);
1.17 www 6386: }
6387:
1.533 banghart 6388: # ------------------------------------------------------------ Disk usage
1.535 albertel 6389: sub diskusage {
1.955 raeburn 6390: my ($udom,$uname,$directorypath,$getpropath)=@_;
6391: $directorypath =~ s/\/$//;
6392: my $listing=&reply('du2:'.&escape($directorypath).':'
6393: .&escape($getpropath).':'.&escape($uname).':'
6394: .&escape($udom),homeserver($uname,$udom));
6395: if ($listing eq 'unknown_cmd') {
6396: if ($getpropath) {
6397: $directorypath = &propath($udom,$uname).'/'.$directorypath;
6398: }
6399: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
6400: }
1.514 albertel 6401: return $listing;
1.512 banghart 6402: }
6403:
1.566 banghart 6404: sub is_locked {
6405: my ($file_name, $domain, $user) = @_;
6406: my @check;
6407: my $is_locked;
6408: push @check, $file_name;
1.613 albertel 6409: my %locked = &get('file_permissions',\@check,
1.620 albertel 6410: $env{'user.domain'},$env{'user.name'});
1.615 albertel 6411: my ($tmp)=keys(%locked);
6412: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 6413:
1.566 banghart 6414: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 6415: $is_locked = 'false';
6416: foreach my $entry (@{$locked{$file_name}}) {
6417: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 6418: $is_locked = 'true';
6419: last;
1.745 raeburn 6420: }
6421: }
1.566 banghart 6422: } else {
6423: $is_locked = 'false';
6424: }
6425: }
6426:
1.759 albertel 6427: sub declutter_portfile {
6428: my ($file) = @_;
1.833 albertel 6429: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 6430: return $file;
6431: }
6432:
1.559 banghart 6433: # ------------------------------------------------------------- Mark as Read Only
6434:
6435: sub mark_as_readonly {
6436: my ($domain,$user,$files,$what) = @_;
1.613 albertel 6437: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6438: my ($tmp)=keys(%current_permissions);
6439: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 6440: foreach my $file (@{$files}) {
1.759 albertel 6441: $file = &declutter_portfile($file);
1.561 banghart 6442: push(@{$current_permissions{$file}},$what);
1.559 banghart 6443: }
1.613 albertel 6444: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 6445: return;
6446: }
6447:
1.572 banghart 6448: # ------------------------------------------------------------Save Selected Files
6449:
6450: sub save_selected_files {
6451: my ($user, $path, @files) = @_;
6452: my $filename = $user."savedfiles";
1.573 banghart 6453: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 6454: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 6455: foreach my $file (@files) {
1.620 albertel 6456: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 6457: }
6458: foreach my $file (@other_files) {
1.574 banghart 6459: print (OUT $file."\n");
1.572 banghart 6460: }
1.574 banghart 6461: close (OUT);
1.572 banghart 6462: return 'ok';
6463: }
6464:
1.574 banghart 6465: sub clear_selected_files {
6466: my ($user) = @_;
6467: my $filename = $user."savedfiles";
6468: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6469: print (OUT undef);
6470: close (OUT);
6471: return ("ok");
6472: }
6473:
1.572 banghart 6474: sub files_in_path {
6475: my ($user, $path) = @_;
6476: my $filename = $user."savedfiles";
6477: my %return_files;
1.574 banghart 6478: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 6479: while (my $line_in = <IN>) {
1.574 banghart 6480: chomp ($line_in);
6481: my @paths_and_file = split (m!/!, $line_in);
6482: my $file_part = pop (@paths_and_file);
6483: my $path_part = join ('/', @paths_and_file);
1.573 banghart 6484: $path_part.='/';
6485: my $path_and_file = $path_part.$file_part;
6486: if ($path_part eq $path) {
6487: $return_files{$file_part}= 'selected';
6488: }
6489: }
1.574 banghart 6490: close (IN);
6491: return (\%return_files);
1.572 banghart 6492: }
6493:
6494: # called in portfolio select mode, to show files selected NOT in current directory
6495: sub files_not_in_path {
6496: my ($user, $path) = @_;
6497: my $filename = $user."savedfiles";
6498: my @return_files;
6499: my $path_part;
1.800 albertel 6500: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6501: while (my $line = <IN>) {
1.572 banghart 6502: #ok, I know it's clunky, but I want it to work
1.800 albertel 6503: my @paths_and_file = split(m|/|, $line);
6504: my $file_part = pop(@paths_and_file);
6505: chomp($file_part);
6506: my $path_part = join('/', @paths_and_file);
1.572 banghart 6507: $path_part .= '/';
6508: my $path_and_file = $path_part.$file_part;
6509: if ($path_part ne $path) {
1.800 albertel 6510: push(@return_files, ($path_and_file));
1.572 banghart 6511: }
6512: }
1.800 albertel 6513: close(OUT);
1.574 banghart 6514: return (@return_files);
1.572 banghart 6515: }
6516:
1.745 raeburn 6517: #----------------------------------------------Get portfolio file permissions
1.629 banghart 6518:
1.745 raeburn 6519: sub get_portfile_permissions {
6520: my ($domain,$user) = @_;
1.613 albertel 6521: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6522: my ($tmp)=keys(%current_permissions);
6523: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6524: return \%current_permissions;
6525: }
6526:
6527: #---------------------------------------------Get portfolio file access controls
6528:
1.749 raeburn 6529: sub get_access_controls {
1.745 raeburn 6530: my ($current_permissions,$group,$file) = @_;
1.769 albertel 6531: my %access;
6532: my $real_file = $file;
6533: $file =~ s/\.meta$//;
1.745 raeburn 6534: if (defined($file)) {
1.749 raeburn 6535: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
6536: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 6537: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 6538: }
6539: }
1.745 raeburn 6540: } else {
1.749 raeburn 6541: foreach my $key (keys(%{$current_permissions})) {
6542: if ($key =~ /\0accesscontrol$/) {
6543: if (defined($group)) {
6544: if ($key !~ m-^\Q$group\E/-) {
6545: next;
6546: }
6547: }
6548: my ($fullpath) = split(/\0/,$key);
6549: if (ref($$current_permissions{$key}) eq 'HASH') {
6550: foreach my $control (keys(%{$$current_permissions{$key}})) {
6551: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
6552: }
6553: }
6554: }
6555: }
6556: }
6557: return %access;
6558: }
6559:
6560: sub modify_access_controls {
6561: my ($file_name,$changes,$domain,$user)=@_;
6562: my ($outcome,$deloutcome);
6563: my %store_permissions;
6564: my %new_values;
6565: my %new_control;
6566: my %translation;
6567: my @deletions = ();
6568: my $now = time;
6569: if (exists($$changes{'activate'})) {
6570: if (ref($$changes{'activate'}) eq 'HASH') {
6571: my @newitems = sort(keys(%{$$changes{'activate'}}));
6572: my $numnew = scalar(@newitems);
6573: for (my $i=0; $i<$numnew; $i++) {
6574: my $newkey = $newitems[$i];
6575: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 6576: if ($newkey =~ /^\d+:/) {
6577: $newkey =~ s/^(\d+)/$newid/;
6578: $translation{$1} = $newid;
6579: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
6580: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
6581: $translation{$1} = $newid;
6582: }
1.749 raeburn 6583: $new_values{$file_name."\0".$newkey} =
6584: $$changes{'activate'}{$newitems[$i]};
6585: $new_control{$newkey} = $now;
6586: }
6587: }
6588: }
6589: my %todelete;
6590: my %changed_items;
6591: foreach my $action ('delete','update') {
6592: if (exists($$changes{$action})) {
6593: if (ref($$changes{$action}) eq 'HASH') {
6594: foreach my $key (keys(%{$$changes{$action}})) {
6595: my ($itemnum) = ($key =~ /^([^:]+):/);
6596: if ($action eq 'delete') {
6597: $todelete{$itemnum} = 1;
6598: } else {
6599: $changed_items{$itemnum} = $key;
6600: }
6601: }
1.745 raeburn 6602: }
6603: }
1.749 raeburn 6604: }
6605: # get lock on access controls for file.
6606: my $lockhash = {
6607: $file_name."\0".'locked_access_records' => $env{'user.name'}.
6608: ':'.$env{'user.domain'},
6609: };
6610: my $tries = 0;
6611: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6612:
6613: while (($gotlock ne 'ok') && $tries <3) {
6614: $tries ++;
6615: sleep 1;
6616: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6617: }
6618: if ($gotlock eq 'ok') {
6619: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
6620: my ($tmp)=keys(%curr_permissions);
6621: if ($tmp=~/^error:/) { undef(%curr_permissions); }
6622: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
6623: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
6624: if (ref($curr_controls) eq 'HASH') {
6625: foreach my $control_item (keys(%{$curr_controls})) {
6626: my ($itemnum) = ($control_item =~ /^([^:]+):/);
6627: if (defined($todelete{$itemnum})) {
6628: push(@deletions,$file_name."\0".$control_item);
6629: } else {
6630: if (defined($changed_items{$itemnum})) {
6631: $new_control{$changed_items{$itemnum}} = $now;
6632: push(@deletions,$file_name."\0".$control_item);
6633: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
6634: } else {
6635: $new_control{$control_item} = $$curr_controls{$control_item};
6636: }
6637: }
1.745 raeburn 6638: }
6639: }
6640: }
1.970 raeburn 6641: my ($group);
6642: if (&is_course($domain,$user)) {
6643: ($group,my $file) = split(/\//,$file_name,2);
6644: }
1.749 raeburn 6645: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
6646: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
6647: $outcome = &put('file_permissions',\%new_values,$domain,$user);
6648: # remove lock
6649: my @del_lock = ($file_name."\0".'locked_access_records');
6650: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 6651: my $sqlresult =
1.970 raeburn 6652: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 6653: $group);
1.749 raeburn 6654: } else {
6655: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 6656: }
1.749 raeburn 6657: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 6658: }
6659:
1.827 raeburn 6660: sub make_public_indefinitely {
6661: my ($requrl) = @_;
6662: my $now = time;
6663: my $action = 'activate';
6664: my $aclnum = 0;
6665: if (&is_portfolio_url($requrl)) {
6666: my (undef,$udom,$unum,$file_name,$group) =
6667: &parse_portfolio_url($requrl);
6668: my $current_perms = &get_portfile_permissions($udom,$unum);
6669: my %access_controls = &get_access_controls($current_perms,
6670: $group,$file_name);
6671: foreach my $key (keys(%{$access_controls{$file_name}})) {
6672: my ($num,$scope,$end,$start) =
6673: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6674: if ($scope eq 'public') {
6675: if ($start <= $now && $end == 0) {
6676: $action = 'none';
6677: } else {
6678: $action = 'update';
6679: $aclnum = $num;
6680: }
6681: last;
6682: }
6683: }
6684: if ($action eq 'none') {
6685: return 'ok';
6686: } else {
6687: my %changes;
6688: my $newend = 0;
6689: my $newstart = $now;
6690: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
6691: $changes{$action}{$newkey} = {
6692: type => 'public',
6693: time => {
6694: start => $newstart,
6695: end => $newend,
6696: },
6697: };
6698: my ($outcome,$deloutcome,$new_values,$translation) =
6699: &modify_access_controls($file_name,\%changes,$udom,$unum);
6700: return $outcome;
6701: }
6702: } else {
6703: return 'invalid';
6704: }
6705: }
6706:
1.745 raeburn 6707: #------------------------------------------------------Get Marked as Read Only
6708:
6709: sub get_marked_as_readonly {
6710: my ($domain,$user,$what,$group) = @_;
6711: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 6712: my @readonly_files;
1.629 banghart 6713: my $cmp1=$what;
6714: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 6715: while (my ($file_name,$value) = each(%{$current_permissions})) {
6716: if (defined($group)) {
6717: if ($file_name !~ m-^\Q$group\E/-) {
6718: next;
6719: }
6720: }
1.561 banghart 6721: if (ref($value) eq "ARRAY"){
6722: foreach my $stored_what (@{$value}) {
1.629 banghart 6723: my $cmp2=$stored_what;
1.759 albertel 6724: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 6725: $cmp2=join('',@{$stored_what});
1.745 raeburn 6726: }
1.629 banghart 6727: if ($cmp1 eq $cmp2) {
1.561 banghart 6728: push(@readonly_files, $file_name);
1.745 raeburn 6729: last;
1.563 banghart 6730: } elsif (!defined($what)) {
6731: push(@readonly_files, $file_name);
1.745 raeburn 6732: last;
1.561 banghart 6733: }
6734: }
1.745 raeburn 6735: }
1.561 banghart 6736: }
6737: return @readonly_files;
6738: }
1.577 banghart 6739: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 6740:
1.577 banghart 6741: sub get_marked_as_readonly_hash {
1.745 raeburn 6742: my ($current_permissions,$group,$what) = @_;
1.577 banghart 6743: my %readonly_files;
1.745 raeburn 6744: while (my ($file_name,$value) = each(%{$current_permissions})) {
6745: if (defined($group)) {
6746: if ($file_name !~ m-^\Q$group\E/-) {
6747: next;
6748: }
6749: }
1.577 banghart 6750: if (ref($value) eq "ARRAY"){
6751: foreach my $stored_what (@{$value}) {
1.745 raeburn 6752: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 6753: foreach my $lock_descriptor(@{$stored_what}) {
6754: if ($lock_descriptor eq 'graded') {
6755: $readonly_files{$file_name} = 'graded';
6756: } elsif ($lock_descriptor eq 'handback') {
6757: $readonly_files{$file_name} = 'handback';
6758: } else {
6759: if (!exists($readonly_files{$file_name})) {
6760: $readonly_files{$file_name} = 'locked';
6761: }
6762: }
1.745 raeburn 6763: }
1.750 banghart 6764: }
1.577 banghart 6765: }
6766: }
6767: }
6768: return %readonly_files;
6769: }
1.559 banghart 6770: # ------------------------------------------------------------ Unmark as Read Only
6771:
6772: sub unmark_as_readonly {
1.629 banghart 6773: # unmarks $file_name (if $file_name is defined), or all files locked by $what
6774: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 6775: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 6776: $file_name = &declutter_portfile($file_name);
1.634 albertel 6777: my $symb_crs = $what;
6778: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 6779: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 6780: my ($tmp)=keys(%current_permissions);
6781: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6782: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 6783: foreach my $file (@readonly_files) {
1.759 albertel 6784: my $clean_file = &declutter_portfile($file);
6785: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 6786: my $current_locks = $current_permissions{$file};
1.563 banghart 6787: my @new_locks;
6788: my @del_keys;
6789: if (ref($current_locks) eq "ARRAY"){
6790: foreach my $locker (@{$current_locks}) {
1.632 albertel 6791: my $compare=$locker;
1.749 raeburn 6792: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 6793: $compare=join('',@{$locker});
1.746 raeburn 6794: if ($compare ne $symb_crs) {
6795: push(@new_locks, $locker);
6796: }
1.563 banghart 6797: }
6798: }
1.650 albertel 6799: if (scalar(@new_locks) > 0) {
1.563 banghart 6800: $current_permissions{$file} = \@new_locks;
6801: } else {
6802: push(@del_keys, $file);
1.613 albertel 6803: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 6804: delete($current_permissions{$file});
1.563 banghart 6805: }
6806: }
1.561 banghart 6807: }
1.613 albertel 6808: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 6809: return;
6810: }
1.512 banghart 6811:
1.17 www 6812: # ------------------------------------------------------------ Directory lister
6813:
6814: sub dirlist {
1.955 raeburn 6815: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 6816: $uri=~s/^\///;
6817: $uri=~s/\/$//;
1.253 stredwic 6818: my ($udom, $uname);
1.955 raeburn 6819: if ($getuserdir) {
1.253 stredwic 6820: $udom = $userdomain;
6821: $uname = $username;
1.955 raeburn 6822: } else {
6823: (undef,$udom,$uname)=split(/\//,$uri);
6824: if(defined($userdomain)) {
6825: $udom = $userdomain;
6826: }
6827: if(defined($username)) {
6828: $uname = $username;
6829: }
1.253 stredwic 6830: }
1.955 raeburn 6831: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 6832:
1.955 raeburn 6833: $dirRoot = $perlvar{'lonDocRoot'};
6834: if (defined($getpropath)) {
6835: $dirRoot = &propath($udom,$uname);
1.253 stredwic 6836: $dirRoot =~ s/\/$//;
1.955 raeburn 6837: } elsif (defined($getuserdir)) {
6838: my $subdir=$uname.'__';
6839: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
6840: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
6841: ."/$udom/$subdir/$uname";
6842: } elsif (defined($alternateRoot)) {
6843: $dirRoot = $alternateRoot;
1.751 banghart 6844: }
1.253 stredwic 6845:
6846: if($udom) {
6847: if($uname) {
1.955 raeburn 6848: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 6849: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 6850: .':'.&escape($uname).':'.&escape($udom),
6851: &homeserver($uname,$udom));
6852: if ($listing eq 'unknown_cmd') {
6853: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
6854: &homeserver($uname,$udom));
6855: } else {
6856: @listing_results = map { &unescape($_); } split(/:/,$listing);
6857: }
1.605 matthew 6858: if ($listing eq 'unknown_cmd') {
1.800 albertel 6859: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
6860: &homeserver($uname,$udom));
1.605 matthew 6861: @listing_results = split(/:/,$listing);
6862: } else {
6863: @listing_results = map { &unescape($_); } split(/:/,$listing);
6864: }
6865: return @listing_results;
1.955 raeburn 6866: } elsif(!$alternateRoot) {
1.800 albertel 6867: my %allusers;
1.841 albertel 6868: my %servers = &get_servers($udom,'library');
1.955 raeburn 6869: foreach my $tryserver (keys(%servers)) {
6870: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
6871: &escape($udom),$tryserver);
6872: if ($listing eq 'unknown_cmd') {
6873: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
6874: $udom, $tryserver);
6875: } else {
6876: @listing_results = map { &unescape($_); } split(/:/,$listing);
6877: }
1.841 albertel 6878: if ($listing eq 'unknown_cmd') {
6879: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
6880: $udom, $tryserver);
6881: @listing_results = split(/:/,$listing);
6882: } else {
6883: @listing_results =
6884: map { &unescape($_); } split(/:/,$listing);
6885: }
6886: if ($listing_results[0] ne 'no_such_dir' &&
6887: $listing_results[0] ne 'empty' &&
6888: $listing_results[0] ne 'con_lost') {
6889: foreach my $line (@listing_results) {
6890: my ($entry) = split(/&/,$line,2);
6891: $allusers{$entry} = 1;
6892: }
6893: }
1.253 stredwic 6894: }
6895: my $alluserstr='';
1.800 albertel 6896: foreach my $user (sort(keys(%allusers))) {
6897: $alluserstr.=$user.'&user:';
1.253 stredwic 6898: }
6899: $alluserstr=~s/:$//;
6900: return split(/:/,$alluserstr);
6901: } else {
1.800 albertel 6902: return ('missing user name');
1.253 stredwic 6903: }
1.955 raeburn 6904: } elsif(!defined($getpropath)) {
1.841 albertel 6905: my @all_domains = sort(&all_domains());
1.955 raeburn 6906: foreach my $domain (@all_domains) {
6907: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
6908: }
6909: return @all_domains;
6910: } else {
1.800 albertel 6911: return ('missing domain');
1.275 stredwic 6912: }
6913: }
6914:
6915: # --------------------------------------------- GetFileTimestamp
6916: # This function utilizes dirlist and returns the date stamp for
6917: # when it was last modified. It will also return an error of -1
6918: # if an error occurs
6919:
6920: sub GetFileTimestamp {
1.955 raeburn 6921: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 6922: $studentDomain = &LONCAPA::clean_domain($studentDomain);
6923: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 6924: my ($fileStat) =
6925: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
6926: undef,$getuserdir);
1.275 stredwic 6927: my @stats = split('&', $fileStat);
6928: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 6929: # @stats contains first the filename, then the stat output
6930: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 6931: } else {
6932: return -1;
1.253 stredwic 6933: }
1.26 www 6934: }
6935:
1.712 albertel 6936: sub stat_file {
6937: my ($uri) = @_;
1.787 albertel 6938: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 6939:
1.955 raeburn 6940: my ($udom,$uname,$file);
1.712 albertel 6941: if ($uri =~ m-^/(uploaded|editupload)/-) {
6942: ($udom,$uname,$file) =
1.811 albertel 6943: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 6944: $file = 'userfiles/'.$file;
6945: }
6946: if ($uri =~ m-^/res/-) {
6947: ($udom,$uname) =
1.807 albertel 6948: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 6949: $file = $uri;
6950: }
6951:
6952: if (!$udom || !$uname || !$file) {
6953: # unable to handle the uri
6954: return ();
6955: }
1.956 raeburn 6956: my $getpropath;
6957: if ($file =~ /^userfiles\//) {
6958: $getpropath = 1;
6959: }
1.955 raeburn 6960: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 6961: my @stats = split('&', $result);
1.721 banghart 6962:
1.712 albertel 6963: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
6964: shift(@stats); #filename is first
6965: return @stats;
6966: }
6967: return ();
6968: }
6969:
1.26 www 6970: # -------------------------------------------------------- Value of a Condition
6971:
1.713 albertel 6972: # gets the value of a specific preevaluated condition
6973: # stored in the string $env{user.state.<cid>}
6974: # or looks up a condition reference in the bighash and if if hasn't
6975: # already been evaluated recurses into docondval to get the value of
6976: # the condition, then memoizing it to
6977: # $env{user.state.<cid>.<condition>}
1.40 www 6978: sub directcondval {
6979: my $number=shift;
1.620 albertel 6980: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 6981: &Apache::lonuserstate::evalstate();
6982: }
1.713 albertel 6983: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
6984: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
6985: } elsif ($number =~ /^_/) {
6986: my $sub_condition;
6987: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
6988: &GDBM_READER(),0640)) {
6989: $sub_condition=$bighash{'conditions'.$number};
6990: untie(%bighash);
6991: }
6992: my $value = &docondval($sub_condition);
1.949 raeburn 6993: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 6994: return $value;
6995: }
1.620 albertel 6996: if ($env{'user.state.'.$env{'request.course.id'}}) {
6997: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 6998: } else {
6999: return 2;
7000: }
7001: }
7002:
1.713 albertel 7003: # get the collection of conditions for this resource
1.26 www 7004: sub condval {
7005: my $condidx=shift;
1.54 www 7006: my $allpathcond='';
1.713 albertel 7007: foreach my $cond (split(/\|/,$condidx)) {
7008: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
7009: $allpathcond.=
7010: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
7011: }
1.191 harris41 7012: }
1.54 www 7013: $allpathcond=~s/\|$//;
1.713 albertel 7014: return &docondval($allpathcond);
7015: }
7016:
7017: #evaluates an expression of conditions
7018: sub docondval {
7019: my ($allpathcond) = @_;
7020: my $result=0;
7021: if ($env{'request.course.id'}
7022: && defined($allpathcond)) {
7023: my $operand='|';
7024: my @stack;
7025: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
7026: if ($chunk eq '(') {
7027: push @stack,($operand,$result);
7028: } elsif ($chunk eq ')') {
7029: my $before=pop @stack;
7030: if (pop @stack eq '&') {
7031: $result=$result>$before?$before:$result;
7032: } else {
7033: $result=$result>$before?$result:$before;
7034: }
7035: } elsif (($chunk eq '&') || ($chunk eq '|')) {
7036: $operand=$chunk;
7037: } else {
7038: my $new=directcondval($chunk);
7039: if ($operand eq '&') {
7040: $result=$result>$new?$new:$result;
7041: } else {
7042: $result=$result>$new?$result:$new;
7043: }
7044: }
7045: }
1.26 www 7046: }
7047: return $result;
1.421 albertel 7048: }
7049:
7050: # ---------------------------------------------------- Devalidate courseresdata
7051:
7052: sub devalidatecourseresdata {
7053: my ($coursenum,$coursedomain)=@_;
7054: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7055: &devalidate_cache_new('courseres',$hashid);
1.28 www 7056: }
7057:
1.763 www 7058:
1.200 www 7059: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 7060: #
7061: # Parameters:
7062: # $coursenum - Number of the course.
7063: # $coursedomain - Domain at which the course was created.
7064: # Returns:
7065: # A hash of the course parameters along (I think) with timestamps
7066: # and version info.
1.877 foxr 7067:
1.624 albertel 7068: sub get_courseresdata {
7069: my ($coursenum,$coursedomain)=@_;
1.200 www 7070: my $coursehom=&homeserver($coursenum,$coursedomain);
7071: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7072: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 7073: my %dumpreply;
1.417 albertel 7074: unless (defined($cached)) {
1.624 albertel 7075: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 7076: $result=\%dumpreply;
1.251 albertel 7077: my ($tmp) = keys(%dumpreply);
7078: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 7079: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 7080: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
7081: return $tmp;
1.416 albertel 7082: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 7083: $result=undef;
1.599 albertel 7084: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 7085: }
7086: }
1.624 albertel 7087: return $result;
7088: }
7089:
1.633 albertel 7090: sub devalidateuserresdata {
7091: my ($uname,$udom)=@_;
7092: my $hashid="$udom:$uname";
7093: &devalidate_cache_new('userres',$hashid);
7094: }
7095:
1.624 albertel 7096: sub get_userresdata {
7097: my ($uname,$udom)=@_;
7098: #most student don\'t have any data set, check if there is some data
7099: if (&EXT_cache_status($udom,$uname)) { return undef; }
7100:
7101: my $hashid="$udom:$uname";
7102: my ($result,$cached)=&is_cached_new('userres',$hashid);
7103: if (!defined($cached)) {
7104: my %resourcedata=&dump('resourcedata',$udom,$uname);
7105: $result=\%resourcedata;
7106: &do_cache_new('userres',$hashid,$result,600);
7107: }
7108: my ($tmp)=keys(%$result);
7109: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
7110: return $result;
7111: }
7112: #error 2 occurs when the .db doesn't exist
7113: if ($tmp!~/error: 2 /) {
1.672 albertel 7114: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 7115: " Trying to get resource data for ".
7116: $uname." at ".$udom.": ".
7117: $tmp."</font>");
7118: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 7119: #&EXT_cache_set($udom,$uname);
7120: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 7121: undef($tmp); # not really an error so don't send it back
1.624 albertel 7122: }
7123: return $tmp;
7124: }
1.879 foxr 7125: #----------------------------------------------- resdata - return resource data
7126: # Purpose:
7127: # Return resource data for either users or for a course.
7128: # Parameters:
7129: # $name - Course/user name.
7130: # $domain - Name of the domain the user/course is registered on.
7131: # $type - Type of thing $name is (must be 'course' or 'user'
7132: # @which - Array of names of resources desired.
7133: # Returns:
7134: # The value of the first reasource in @which that is found in the
7135: # resource hash.
7136: # Exceptional Conditions:
7137: # If the $type passed in is not valid (not the string 'course' or
7138: # 'user', an undefined reference is returned.
7139: # If none of the resources are found, an undef is returned
1.624 albertel 7140: sub resdata {
7141: my ($name,$domain,$type,@which)=@_;
7142: my $result;
7143: if ($type eq 'course') {
7144: $result=&get_courseresdata($name,$domain);
7145: } elsif ($type eq 'user') {
7146: $result=&get_userresdata($name,$domain);
7147: }
7148: if (!ref($result)) { return $result; }
1.251 albertel 7149: foreach my $item (@which) {
1.927 albertel 7150: if (defined($result->{$item->[0]})) {
7151: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 7152: }
1.250 albertel 7153: }
1.291 albertel 7154: return undef;
1.200 www 7155: }
7156:
1.379 matthew 7157: #
7158: # EXT resource caching routines
7159: #
7160:
7161: sub clear_EXT_cache_status {
1.383 albertel 7162: &delenv('cache.EXT.');
1.379 matthew 7163: }
7164:
7165: sub EXT_cache_status {
7166: my ($target_domain,$target_user) = @_;
1.383 albertel 7167: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 7168: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 7169: # We know already the user has no data
7170: return 1;
7171: } else {
7172: return 0;
7173: }
7174: }
7175:
7176: sub EXT_cache_set {
7177: my ($target_domain,$target_user) = @_;
1.383 albertel 7178: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 7179: #&appenv({$cachename => time});
1.379 matthew 7180: }
7181:
1.28 www 7182: # --------------------------------------------------------- Value of a Variable
1.58 www 7183: sub EXT {
1.715 albertel 7184:
1.395 albertel 7185: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 7186: unless ($varname) { return ''; }
1.218 albertel 7187: #get real user name/domain, courseid and symb
7188: my $courseid;
1.359 albertel 7189: my $publicuser;
1.427 www 7190: if ($symbparm) {
7191: $symbparm=&get_symb_from_alias($symbparm);
7192: }
1.218 albertel 7193: if (!($uname && $udom)) {
1.790 albertel 7194: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 7195: if (!$symbparm) { $symbparm=$cursymb; }
7196: } else {
1.620 albertel 7197: $courseid=$env{'request.course.id'};
1.218 albertel 7198: }
1.48 www 7199: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
7200: my $rest;
1.320 albertel 7201: if (defined($therest[0])) {
1.48 www 7202: $rest=join('.',@therest);
7203: } else {
7204: $rest='';
7205: }
1.320 albertel 7206:
1.57 www 7207: my $qualifierrest=$qualifier;
7208: if ($rest) { $qualifierrest.='.'.$rest; }
7209: my $spacequalifierrest=$space;
7210: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 7211: if ($realm eq 'user') {
1.48 www 7212: # --------------------------------------------------------------- user.resource
7213: if ($space eq 'resource') {
1.651 albertel 7214: if ( (defined($Apache::lonhomework::parsing_a_problem)
7215: || defined($Apache::lonhomework::parsing_a_task))
7216: &&
1.744 albertel 7217: ($symbparm eq &symbread()) ) {
7218: # if we are in the middle of processing the resource the
7219: # get the value we are planning on committing
7220: if (defined($Apache::lonhomework::results{$qualifierrest})) {
7221: return $Apache::lonhomework::results{$qualifierrest};
7222: } else {
7223: return $Apache::lonhomework::history{$qualifierrest};
7224: }
1.335 albertel 7225: } else {
1.359 albertel 7226: my %restored;
1.620 albertel 7227: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 7228: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
7229: } else {
7230: %restored=&restore($symbparm,$courseid,$udom,$uname);
7231: }
1.335 albertel 7232: return $restored{$qualifierrest};
7233: }
1.48 www 7234: # ----------------------------------------------------------------- user.access
7235: } elsif ($space eq 'access') {
1.218 albertel 7236: # FIXME - not supporting calls for a specific user
1.48 www 7237: return &allowed($qualifier,$rest);
7238: # ------------------------------------------ user.preferences, user.environment
7239: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 7240: if (($uname eq $env{'user.name'}) &&
7241: ($udom eq $env{'user.domain'})) {
7242: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 7243: } else {
1.359 albertel 7244: my %returnhash;
7245: if (!$publicuser) {
7246: %returnhash=&userenvironment($udom,$uname,
7247: $qualifierrest);
7248: }
1.218 albertel 7249: return $returnhash{$qualifierrest};
7250: }
1.48 www 7251: # ----------------------------------------------------------------- user.course
7252: } elsif ($space eq 'course') {
1.218 albertel 7253: # FIXME - not supporting calls for a specific user
1.620 albertel 7254: return $env{join('.',('request.course',$qualifier))};
1.48 www 7255: # ------------------------------------------------------------------- user.role
7256: } elsif ($space eq 'role') {
1.218 albertel 7257: # FIXME - not supporting calls for a specific user
1.620 albertel 7258: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 7259: if ($qualifier eq 'value') {
7260: return $role;
7261: } elsif ($qualifier eq 'extent') {
7262: return $where;
7263: }
7264: # ----------------------------------------------------------------- user.domain
7265: } elsif ($space eq 'domain') {
1.218 albertel 7266: return $udom;
1.48 www 7267: # ------------------------------------------------------------------- user.name
7268: } elsif ($space eq 'name') {
1.218 albertel 7269: return $uname;
1.48 www 7270: # ---------------------------------------------------- Any other user namespace
1.29 www 7271: } else {
1.359 albertel 7272: my %reply;
7273: if (!$publicuser) {
7274: %reply=&get($space,[$qualifierrest],$udom,$uname);
7275: }
7276: return $reply{$qualifierrest};
1.48 www 7277: }
1.236 www 7278: } elsif ($realm eq 'query') {
7279: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 7280: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
7281: [$spacequalifierrest]);
1.620 albertel 7282: return $env{'form.'.$spacequalifierrest};
1.236 www 7283: } elsif ($realm eq 'request') {
1.48 www 7284: # ------------------------------------------------------------- request.browser
7285: if ($space eq 'browser') {
1.430 www 7286: if ($qualifier eq 'textremote') {
1.676 albertel 7287: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 7288: return 1;
7289: } else {
7290: return 0;
7291: }
7292: } else {
1.620 albertel 7293: return $env{'browser.'.$qualifier};
1.430 www 7294: }
1.57 www 7295: # ------------------------------------------------------------ request.filename
7296: } else {
1.620 albertel 7297: return $env{'request.'.$spacequalifierrest};
1.29 www 7298: }
1.28 www 7299: } elsif ($realm eq 'course') {
1.48 www 7300: # ---------------------------------------------------------- course.description
1.620 albertel 7301: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 7302: } elsif ($realm eq 'resource') {
1.165 www 7303:
1.620 albertel 7304: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 7305: if (!$symbparm) { $symbparm=&symbread(); }
7306: }
1.693 albertel 7307:
7308: if ($space eq 'title') {
7309: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
7310: return &gettitle($symbparm);
7311: }
7312:
7313: if ($space eq 'map') {
7314: my ($map) = &decode_symb($symbparm);
7315: return &symbread($map);
7316: }
1.905 albertel 7317: if ($space eq 'filename') {
7318: if ($symbparm) {
7319: return &clutter((&decode_symb($symbparm))[2]);
7320: }
7321: return &hreflocation('',$env{'request.filename'});
7322: }
1.693 albertel 7323:
7324: my ($section, $group, @groups);
1.593 albertel 7325: my ($courselevelm,$courselevel);
1.539 albertel 7326: if ($symbparm && defined($courseid) &&
1.620 albertel 7327: $courseid eq $env{'request.course.id'}) {
1.165 www 7328:
1.218 albertel 7329: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 7330:
1.60 www 7331: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 7332: my $symbp=$symbparm;
1.735 albertel 7333: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 7334:
7335: my $symbparm=$symbp.'.'.$spacequalifierrest;
7336: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
7337:
1.620 albertel 7338: if (($env{'user.name'} eq $uname) &&
7339: ($env{'user.domain'} eq $udom)) {
7340: $section=$env{'request.course.sec'};
1.733 raeburn 7341: @groups = split(/:/,$env{'request.course.groups'});
7342: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 7343: } else {
1.539 albertel 7344: if (! defined($usection)) {
1.551 albertel 7345: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 7346: } else {
7347: $section = $usection;
7348: }
1.733 raeburn 7349: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 7350: }
7351:
7352: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
7353: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
7354: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
7355:
1.593 albertel 7356: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 7357: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 7358: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 7359:
1.60 www 7360: # ----------------------------------------------------------- first, check user
1.624 albertel 7361:
7362: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 7363: ([$courselevelr,'resource'],
7364: [$courselevelm,'map' ],
7365: [$courselevel, 'course' ]));
1.931 albertel 7366: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 7367:
1.594 albertel 7368: # ------------------------------------------------ second, check some of course
1.684 raeburn 7369: my $coursereply;
1.691 raeburn 7370: if (@groups > 0) {
7371: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
7372: $mapparm,$spacequalifierrest);
1.927 albertel 7373: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 7374: }
1.96 www 7375:
1.684 raeburn 7376: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 7377: $env{'course.'.$courseid.'.domain'},
7378: 'course',
7379: ([$seclevelr, 'resource'],
7380: [$seclevelm, 'map' ],
7381: [$seclevel, 'course' ],
7382: [$courselevelr,'resource']));
7383: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 7384:
1.60 www 7385: # ------------------------------------------------------ third, check map parms
1.218 albertel 7386: my %parmhash=();
7387: my $thisparm='';
7388: if (tie(%parmhash,'GDBM_File',
1.620 albertel 7389: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 7390: &GDBM_READER(),0640)) {
1.218 albertel 7391: $thisparm=$parmhash{$symbparm};
7392: untie(%parmhash);
7393: }
1.927 albertel 7394: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 7395: }
1.594 albertel 7396: # ------------------------------------------ fourth, look in resource metadata
1.71 www 7397:
1.218 albertel 7398: $spacequalifierrest=~s/\./\_/;
1.282 albertel 7399: my $filename;
7400: if (!$symbparm) { $symbparm=&symbread(); }
7401: if ($symbparm) {
1.409 www 7402: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 7403: } else {
1.620 albertel 7404: $filename=$env{'request.filename'};
1.282 albertel 7405: }
7406: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 7407: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 7408: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 7409: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 7410:
1.927 albertel 7411: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 7412: if ($symbparm && defined($courseid) &&
1.620 albertel 7413: $courseid eq $env{'request.course.id'}) {
1.624 albertel 7414: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
7415: $env{'course.'.$courseid.'.domain'},
7416: 'course',
1.927 albertel 7417: ([$courselevelm,'map' ],
7418: [$courselevel, 'course']));
7419: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 7420: }
1.145 www 7421: # ------------------------------------------------------------------ Cascade up
1.218 albertel 7422: unless ($space eq '0') {
1.336 albertel 7423: my @parts=split(/_/,$space);
7424: my $id=pop(@parts);
7425: my $part=join('_',@parts);
7426: if ($part eq '') { $part='0'; }
1.927 albertel 7427: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 7428: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 7429: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 7430: }
1.395 albertel 7431: if ($recurse) { return undef; }
7432: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 7433: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 7434: # ---------------------------------------------------- Any other user namespace
7435: } elsif ($realm eq 'environment') {
7436: # ----------------------------------------------------------------- environment
1.620 albertel 7437: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
7438: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 7439: } else {
1.770 albertel 7440: if ($uname eq 'anonymous' && $udom eq '') {
7441: return '';
7442: }
1.219 albertel 7443: my %returnhash=&userenvironment($udom,$uname,
7444: $spacequalifierrest);
7445: return $returnhash{$spacequalifierrest};
7446: }
1.28 www 7447: } elsif ($realm eq 'system') {
1.48 www 7448: # ----------------------------------------------------------------- system.time
7449: if ($space eq 'time') {
7450: return time;
7451: }
1.696 albertel 7452: } elsif ($realm eq 'server') {
7453: # ----------------------------------------------------------------- system.time
7454: if ($space eq 'name') {
7455: return $ENV{'SERVER_NAME'};
7456: }
1.28 www 7457: }
1.48 www 7458: return '';
1.61 www 7459: }
7460:
1.927 albertel 7461: sub get_reply {
7462: my ($reply_value) = @_;
1.940 raeburn 7463: if (ref($reply_value) eq 'ARRAY') {
7464: if (wantarray) {
7465: return @$reply_value;
7466: }
7467: return $reply_value->[0];
7468: } else {
7469: return $reply_value;
1.927 albertel 7470: }
7471: }
7472:
1.691 raeburn 7473: sub check_group_parms {
7474: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
7475: my @groupitems = ();
7476: my $resultitem;
1.927 albertel 7477: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 7478: foreach my $group (@{$groups}) {
7479: foreach my $level (@levels) {
1.927 albertel 7480: my $item = $courseid.'.['.$group.'].'.$level->[0];
7481: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 7482: }
7483: }
7484: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
7485: $env{'course.'.$courseid.'.domain'},
7486: 'course',@groupitems);
7487: return $coursereply;
7488: }
7489:
7490: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 7491: my ($courseid,@groups) = @_;
7492: @groups = sort(@groups);
1.691 raeburn 7493: return @groups;
7494: }
7495:
1.395 albertel 7496: sub packages_tab_default {
7497: my ($uri,$varname)=@_;
7498: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 7499:
7500: my (@extension,@specifics,$do_default);
7501: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 7502: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 7503: if ($pack_type eq 'default') {
7504: $do_default=1;
7505: } elsif ($pack_type eq 'extension') {
7506: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 7507: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 7508: # only look at packages defaults for packages that this id is
1.738 albertel 7509: push(@specifics,[$package,$pack_type,$pack_part]);
7510: }
7511: }
7512: # first look for a package that matches the requested part id
7513: foreach my $package (@specifics) {
7514: my (undef,$pack_type,$pack_part)=@{$package};
7515: next if ($pack_part ne $part);
7516: if (defined($packagetab{"$pack_type&$name&default"})) {
7517: return $packagetab{"$pack_type&$name&default"};
7518: }
7519: }
7520: # look for any possible matching non extension_ package
7521: foreach my $package (@specifics) {
7522: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 7523: if (defined($packagetab{"$pack_type&$name&default"})) {
7524: return $packagetab{"$pack_type&$name&default"};
7525: }
1.585 albertel 7526: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 7527: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
7528: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 7529: }
7530: }
1.738 albertel 7531: # look for any posible extension_ match
7532: foreach my $package (@extension) {
7533: my ($package,$pack_type)=@{$package};
7534: if (defined($packagetab{"$pack_type&$name&default"})) {
7535: return $packagetab{"$pack_type&$name&default"};
7536: }
7537: if (defined($packagetab{$package."&$name&default"})) {
7538: return $packagetab{$package."&$name&default"};
7539: }
7540: }
7541: # look for a global default setting
7542: if ($do_default && defined($packagetab{"default&$name&default"})) {
7543: return $packagetab{"default&$name&default"};
7544: }
1.395 albertel 7545: return undef;
7546: }
7547:
1.334 albertel 7548: sub add_prefix_and_part {
7549: my ($prefix,$part)=@_;
7550: my $keyroot;
7551: if (defined($prefix) && $prefix !~ /^__/) {
7552: # prefix that has a part already
7553: $keyroot=$prefix;
7554: } elsif (defined($prefix)) {
7555: # prefix that is missing a part
7556: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
7557: } else {
7558: # no prefix at all
7559: if (defined($part)) { $keyroot='_'.$part; }
7560: }
7561: return $keyroot;
7562: }
7563:
1.71 www 7564: # ---------------------------------------------------------------- Get metadata
7565:
1.599 albertel 7566: my %metaentry;
1.71 www 7567: sub metadata {
1.176 www 7568: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 7569: $uri=&declutter($uri);
1.288 albertel 7570: # if it is a non metadata possible uri return quickly
1.529 albertel 7571: if (($uri eq '') ||
7572: (($uri =~ m|^/*adm/|) &&
1.698 albertel 7573: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.924 albertel 7574: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) ) {
7575: return undef;
7576: }
7577: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
7578: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 7579: return undef;
1.288 albertel 7580: }
1.73 www 7581: my $filename=$uri;
7582: $uri=~s/\.meta$//;
1.172 www 7583: #
7584: # Is the metadata already cached?
1.177 www 7585: # Look at timestamp of caching
1.172 www 7586: # Everything is cached by the main uri, libraries are never directly cached
7587: #
1.428 albertel 7588: if (!defined($liburi)) {
1.599 albertel 7589: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 7590: if (defined($cached)) { return $result->{':'.$what}; }
7591: }
7592: {
1.172 www 7593: #
7594: # Is this a recursive call for a library?
7595: #
1.599 albertel 7596: # if (! exists($metacache{$uri})) {
7597: # $metacache{$uri}={};
7598: # }
1.924 albertel 7599: my $cachetime = 60*60;
1.171 www 7600: if ($liburi) {
7601: $liburi=&declutter($liburi);
7602: $filename=$liburi;
1.401 bowersj2 7603: } else {
1.599 albertel 7604: &devalidate_cache_new('meta',$uri);
7605: undef(%metaentry);
1.401 bowersj2 7606: }
1.140 www 7607: my %metathesekeys=();
1.73 www 7608: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 7609: my $metastring;
1.924 albertel 7610: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 7611: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 7612: $metastring =
1.929 albertel 7613: &Apache::lonnet::ssi_body($which,
1.924 albertel 7614: ('grade_target' => 'meta'));
7615: $cachetime = 1; # only want this cached in the child not long term
7616: } elsif ($uri !~ m -^(editupload)/-) {
1.543 albertel 7617: my $file=&filelocation('',&clutter($filename));
1.599 albertel 7618: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 7619: $metastring=&getfile($file);
1.489 albertel 7620: }
1.208 albertel 7621: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 7622: my $token;
1.140 www 7623: undef %metathesekeys;
1.71 www 7624: while ($token=$parser->get_token) {
1.339 albertel 7625: if ($token->[0] eq 'S') {
7626: if (defined($token->[2]->{'package'})) {
1.172 www 7627: #
7628: # This is a package - get package info
7629: #
1.339 albertel 7630: my $package=$token->[2]->{'package'};
7631: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7632: if (defined($token->[2]->{'id'})) {
7633: $keyroot.='_'.$token->[2]->{'id'};
7634: }
1.599 albertel 7635: if ($metaentry{':packages'}) {
7636: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 7637: } else {
1.599 albertel 7638: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 7639: }
1.736 albertel 7640: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 7641: my $part=$keyroot;
7642: $part=~s/^\_//;
1.736 albertel 7643: if ($pack_entry=~/^\Q$package\E\&/ ||
7644: $pack_entry=~/^\Q$package\E_0\&/) {
7645: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 7646: # ignore package.tab specified default values
7647: # here &package_tab_default() will fetch those
7648: if ($subp eq 'default') { next; }
1.736 albertel 7649: my $value=$packagetab{$pack_entry};
1.432 albertel 7650: my $unikey;
7651: if ($pack =~ /_0$/) {
7652: $unikey='parameter_0_'.$name;
7653: $part=0;
7654: } else {
7655: $unikey='parameter'.$keyroot.'_'.$name;
7656: }
1.339 albertel 7657: if ($subp eq 'display') {
7658: $value.=' [Part: '.$part.']';
7659: }
1.599 albertel 7660: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 7661: $metathesekeys{$unikey}=1;
1.599 albertel 7662: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7663: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 7664: }
1.599 albertel 7665: if (defined($metaentry{':'.$unikey.'.default'})) {
7666: $metaentry{':'.$unikey}=
7667: $metaentry{':'.$unikey.'.default'};
1.356 albertel 7668: }
1.339 albertel 7669: }
7670: }
7671: } else {
1.172 www 7672: #
7673: # This is not a package - some other kind of start tag
1.339 albertel 7674: #
7675: my $entry=$token->[1];
7676: my $unikey;
7677: if ($entry eq 'import') {
7678: $unikey='';
7679: } else {
7680: $unikey=$entry;
7681: }
7682: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7683:
7684: if (defined($token->[2]->{'id'})) {
7685: $unikey.='_'.$token->[2]->{'id'};
7686: }
1.175 www 7687:
1.339 albertel 7688: if ($entry eq 'import') {
1.175 www 7689: #
7690: # Importing a library here
1.339 albertel 7691: #
7692: if ($depthcount<20) {
7693: my $location=$parser->get_text('/import');
7694: my $dir=$filename;
7695: $dir=~s|[^/]*$||;
7696: $location=&filelocation($dir,$location);
1.736 albertel 7697: my $metadata =
7698: &metadata($uri,'keys', $location,$unikey,
7699: $depthcount+1);
7700: foreach my $meta (split(',',$metadata)) {
7701: $metaentry{':'.$meta}=$metaentry{':'.$meta};
7702: $metathesekeys{$meta}=1;
1.339 albertel 7703: }
7704: }
7705: } else {
7706:
7707: if (defined($token->[2]->{'name'})) {
7708: $unikey.='_'.$token->[2]->{'name'};
7709: }
7710: $metathesekeys{$unikey}=1;
1.736 albertel 7711: foreach my $param (@{$token->[3]}) {
7712: $metaentry{':'.$unikey.'.'.$param} =
7713: $token->[2]->{$param};
1.339 albertel 7714: }
7715: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 7716: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 7717: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
7718: # only ws inside the tag, and not in default, so use default
7719: # as value
1.599 albertel 7720: $metaentry{':'.$unikey}=$default;
1.908 albertel 7721: } elsif ( $internaltext =~ /\S/ ) {
7722: # something interesting inside the tag
7723: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 7724: } else {
1.908 albertel 7725: # no interesting values, don't set a default
1.339 albertel 7726: }
1.172 www 7727: # end of not-a-package not-a-library import
1.339 albertel 7728: }
1.172 www 7729: # end of not-a-package start tag
1.339 albertel 7730: }
1.172 www 7731: # the next is the end of "start tag"
1.339 albertel 7732: }
7733: }
1.483 albertel 7734: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 7735: $extension = lc($extension);
7736: if ($extension eq 'htm') { $extension='html'; }
7737:
1.737 albertel 7738: foreach my $key (keys(%packagetab)) {
1.483 albertel 7739: #no specific packages #how's our extension
7740: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 7741: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 7742: \%metathesekeys);
7743: }
1.883 albertel 7744:
7745: if (!exists($metaentry{':packages'})
7746: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 7747: foreach my $key (keys(%packagetab)) {
1.483 albertel 7748: #no specific packages well let's get default then
7749: if ($key!~/^default&/) { next; }
1.488 albertel 7750: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 7751: \%metathesekeys);
7752: }
7753: }
1.338 www 7754: # are there custom rights to evaluate
1.599 albertel 7755: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 7756:
1.338 www 7757: #
7758: # Importing a rights file here
1.339 albertel 7759: #
7760: unless ($depthcount) {
1.599 albertel 7761: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 7762: my $dir=$filename;
7763: $dir=~s|[^/]*$||;
7764: $location=&filelocation($dir,$location);
1.736 albertel 7765: my $rights_metadata =
7766: &metadata($uri,'keys',$location,'_rights',
7767: $depthcount+1);
7768: foreach my $rights (split(',',$rights_metadata)) {
7769: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
7770: $metathesekeys{$rights}=1;
1.339 albertel 7771: }
7772: }
7773: }
1.737 albertel 7774: # uniqifiy package listing
7775: my %seen;
7776: my @uniq_packages =
7777: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
7778: $metaentry{':packages'} = join(',',@uniq_packages);
7779:
7780: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 7781: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
7782: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 7783: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 7784: # this is the end of "was not already recently cached
1.71 www 7785: }
1.599 albertel 7786: return $metaentry{':'.$what};
1.261 albertel 7787: }
7788:
1.488 albertel 7789: sub metadata_create_package_def {
1.483 albertel 7790: my ($uri,$key,$package,$metathesekeys)=@_;
7791: my ($pack,$name,$subp)=split(/\&/,$key);
7792: if ($subp eq 'default') { next; }
7793:
1.599 albertel 7794: if (defined($metaentry{':packages'})) {
7795: $metaentry{':packages'}.=','.$package;
1.483 albertel 7796: } else {
1.599 albertel 7797: $metaentry{':packages'}=$package;
1.483 albertel 7798: }
7799: my $value=$packagetab{$key};
7800: my $unikey;
7801: $unikey='parameter_0_'.$name;
1.599 albertel 7802: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 7803: $$metathesekeys{$unikey}=1;
1.599 albertel 7804: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7805: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 7806: }
1.599 albertel 7807: if (defined($metaentry{':'.$unikey.'.default'})) {
7808: $metaentry{':'.$unikey}=
7809: $metaentry{':'.$unikey.'.default'};
1.483 albertel 7810: }
7811: }
7812:
1.261 albertel 7813: sub metadata_generate_part0 {
7814: my ($metadata,$metacache,$uri) = @_;
7815: my %allnames;
1.737 albertel 7816: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 7817: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 7818: my $part=$$metacache{':'.$metakey.'.part'};
7819: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 7820: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 7821: $allnames{$name}=$part;
7822: }
7823: }
7824: }
7825: foreach my $name (keys(%allnames)) {
7826: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 7827: my $key=":parameter_0_$name";
1.261 albertel 7828: $$metacache{"$key.part"}='0';
7829: $$metacache{"$key.name"}=$name;
1.428 albertel 7830: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 7831: $allnames{$name}.'_'.$name.
7832: '.type'};
1.428 albertel 7833: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 7834: '.display'};
1.644 www 7835: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 7836: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 7837: $$metacache{"$key.display"}=$olddis;
7838: }
1.71 www 7839: }
7840:
1.764 albertel 7841: # ------------------------------------------------------ Devalidate title cache
7842:
7843: sub devalidate_title_cache {
7844: my ($url)=@_;
7845: if (!$env{'request.course.id'}) { return; }
7846: my $symb=&symbread($url);
7847: if (!$symb) { return; }
7848: my $key=$env{'request.course.id'}."\0".$symb;
7849: &devalidate_cache_new('title',$key);
7850: }
7851:
1.301 www 7852: # ------------------------------------------------- Get the title of a resource
7853:
7854: sub gettitle {
7855: my $urlsymb=shift;
7856: my $symb=&symbread($urlsymb);
1.534 albertel 7857: if ($symb) {
1.620 albertel 7858: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 7859: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 7860: if (defined($cached)) {
7861: return $result;
7862: }
1.534 albertel 7863: my ($map,$resid,$url)=&decode_symb($symb);
7864: my $title='';
1.907 albertel 7865: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
7866: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
7867: } else {
7868: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
7869: &GDBM_READER(),0640)) {
7870: my $mapid=$bighash{'map_pc_'.&clutter($map)};
7871: $title=$bighash{'title_'.$mapid.'.'.$resid};
7872: untie(%bighash);
7873: }
1.534 albertel 7874: }
7875: $title=~s/\&colon\;/\:/gs;
7876: if ($title) {
1.599 albertel 7877: return &do_cache_new('title',$key,$title,600);
1.534 albertel 7878: }
7879: $urlsymb=$url;
7880: }
7881: my $title=&metadata($urlsymb,'title');
7882: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
7883: return $title;
1.301 www 7884: }
1.613 albertel 7885:
1.614 albertel 7886: sub get_slot {
7887: my ($which,$cnum,$cdom)=@_;
7888: if (!$cnum || !$cdom) {
1.790 albertel 7889: (undef,my $courseid)=&whichuser();
1.620 albertel 7890: $cdom=$env{'course.'.$courseid.'.domain'};
7891: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 7892: }
1.703 albertel 7893: my $key=join("\0",'slots',$cdom,$cnum,$which);
7894: my %slotinfo;
7895: if (exists($remembered{$key})) {
7896: $slotinfo{$which} = $remembered{$key};
7897: } else {
7898: %slotinfo=&get('slots',[$which],$cdom,$cnum);
7899: &Apache::lonhomework::showhash(%slotinfo);
7900: my ($tmp)=keys(%slotinfo);
7901: if ($tmp=~/^error:/) { return (); }
7902: $remembered{$key} = $slotinfo{$which};
7903: }
1.616 albertel 7904: if (ref($slotinfo{$which}) eq 'HASH') {
7905: return %{$slotinfo{$which}};
7906: }
7907: return $slotinfo{$which};
1.614 albertel 7908: }
1.31 www 7909: # ------------------------------------------------- Update symbolic store links
7910:
7911: sub symblist {
7912: my ($mapname,%newhash)=@_;
1.438 www 7913: $mapname=&deversion(&declutter($mapname));
1.31 www 7914: my %hash;
1.620 albertel 7915: if (($env{'request.course.fn'}) && (%newhash)) {
7916: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 7917: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 7918: foreach my $url (keys(%newhash)) {
1.711 albertel 7919: next if ($url eq 'last_known'
7920: && $env{'form.no_update_last_known'});
7921: $hash{declutter($url)}=&encode_symb($mapname,
7922: $newhash{$url}->[1],
7923: $newhash{$url}->[0]);
1.191 harris41 7924: }
1.31 www 7925: if (untie(%hash)) {
7926: return 'ok';
7927: }
7928: }
7929: }
7930: return 'error';
1.212 www 7931: }
7932:
7933: # --------------------------------------------------------------- Verify a symb
7934:
7935: sub symbverify {
1.510 www 7936: my ($symb,$thisurl)=@_;
7937: my $thisfn=$thisurl;
1.439 www 7938: $thisfn=&declutter($thisfn);
1.215 www 7939: # direct jump to resource in page or to a sequence - will construct own symbs
7940: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
7941: # check URL part
1.409 www 7942: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 7943:
1.431 www 7944: unless ($url eq $thisfn) { return 0; }
1.213 www 7945:
1.216 www 7946: $symb=&symbclean($symb);
1.510 www 7947: $thisurl=&deversion($thisurl);
1.439 www 7948: $thisfn=&deversion($thisfn);
1.213 www 7949:
7950: my %bighash;
7951: my $okay=0;
1.431 www 7952:
1.620 albertel 7953: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 7954: &GDBM_READER(),0640)) {
1.510 www 7955: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 7956: unless ($ids) {
1.510 www 7957: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 7958: }
7959: if ($ids) {
7960: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 7961: foreach my $id (split(/\,/,$ids)) {
7962: my ($mapid,$resid)=split(/\./,$id);
1.216 www 7963: if (
7964: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
7965: eq $symb) {
1.620 albertel 7966: if (($env{'request.role.adv'}) ||
1.800 albertel 7967: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 7968: $okay=1;
7969: }
7970: }
1.216 www 7971: }
7972: }
1.213 www 7973: untie(%bighash);
7974: }
7975: return $okay;
1.31 www 7976: }
7977:
1.210 www 7978: # --------------------------------------------------------------- Clean-up symb
7979:
7980: sub symbclean {
7981: my $symb=shift;
1.568 albertel 7982: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 7983: # remove version from map
7984: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 7985:
1.210 www 7986: # remove version from URL
7987: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 7988:
1.507 www 7989: # remove wrapper
7990:
1.510 www 7991: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 7992: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 7993: return $symb;
1.409 www 7994: }
7995:
7996: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 7997:
7998: sub encode_symb {
7999: my ($map,$resid,$url)=@_;
8000: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
8001: }
1.409 www 8002:
8003: sub decode_symb {
1.568 albertel 8004: my $symb=shift;
8005: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
8006: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 8007: return (&fixversion($map),$resid,&fixversion($url));
8008: }
8009:
8010: sub fixversion {
8011: my $fn=shift;
1.609 banghart 8012: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 8013: my %bighash;
8014: my $uri=&clutter($fn);
1.620 albertel 8015: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 8016: # is this cached?
1.599 albertel 8017: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 8018: if (defined($cached)) { return $result; }
8019: # unfortunately not cached, or expired
1.620 albertel 8020: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 8021: &GDBM_READER(),0640)) {
8022: if ($bighash{'version_'.$uri}) {
8023: my $version=$bighash{'version_'.$uri};
1.444 www 8024: unless (($version eq 'mostrecent') ||
8025: ($version==&getversion($uri))) {
1.440 www 8026: $uri=~s/\.(\w+)$/\.$version\.$1/;
8027: }
8028: }
8029: untie %bighash;
1.413 www 8030: }
1.599 albertel 8031: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 8032: }
8033:
8034: sub deversion {
8035: my $url=shift;
8036: $url=~s/\.\d+\.(\w+)$/\.$1/;
8037: return $url;
1.210 www 8038: }
8039:
1.31 www 8040: # ------------------------------------------------------ Return symb list entry
8041:
8042: sub symbread {
1.249 www 8043: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 8044: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 8045: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 8046: # no filename provided? try from environment
1.44 www 8047: unless ($thisfn) {
1.620 albertel 8048: if ($env{'request.symb'}) {
8049: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 8050: }
1.620 albertel 8051: $thisfn=$env{'request.filename'};
1.44 www 8052: }
1.569 albertel 8053: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 8054: # is that filename actually a symb? Verify, clean, and return
8055: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 8056: if (&symbverify($thisfn,$1)) {
1.620 albertel 8057: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 8058: }
1.242 www 8059: }
1.44 www 8060: $thisfn=declutter($thisfn);
1.31 www 8061: my %hash;
1.37 www 8062: my %bighash;
8063: my $syval='';
1.620 albertel 8064: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 8065: my $targetfn = $thisfn;
1.609 banghart 8066: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 8067: $targetfn = 'adm/wrapper/'.$thisfn;
8068: }
1.687 albertel 8069: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
8070: $targetfn=$1;
8071: }
1.620 albertel 8072: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8073: &GDBM_READER(),0640)) {
1.481 raeburn 8074: $syval=$hash{$targetfn};
1.37 www 8075: untie(%hash);
8076: }
8077: # ---------------------------------------------------------- There was an entry
8078: if ($syval) {
1.601 albertel 8079: #unless ($syval=~/\_\d+$/) {
1.620 albertel 8080: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 8081: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8082: #return $env{$cache_str}='';
1.601 albertel 8083: #}
8084: #$syval.=$1;
8085: #}
1.37 www 8086: } else {
8087: # ------------------------------------------------------- Was not in symb table
1.620 albertel 8088: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8089: &GDBM_READER(),0640)) {
1.37 www 8090: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 8091: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 8092: unless ($ids) {
8093: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 8094: }
8095: unless ($ids) {
8096: # alias?
8097: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 8098: }
1.37 www 8099: if ($ids) {
8100: # ------------------------------------------------------------------- Has ID(s)
8101: my @possibilities=split(/\,/,$ids);
1.39 www 8102: if ($#possibilities==0) {
8103: # ----------------------------------------------- There is only one possibility
1.37 www 8104: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 8105: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8106: $resid,$thisfn);
1.249 www 8107: } elsif (!$donotrecurse) {
1.39 www 8108: # ------------------------------------------ There is more than one possibility
8109: my $realpossible=0;
1.800 albertel 8110: foreach my $id (@possibilities) {
8111: my $file=$bighash{'src_'.$id};
1.39 www 8112: if (&allowed('bre',$file)) {
1.800 albertel 8113: my ($mapid,$resid)=split(/\./,$id);
1.39 www 8114: if ($bighash{'map_type_'.$mapid} ne 'page') {
8115: $realpossible++;
1.626 albertel 8116: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8117: $resid,$thisfn);
1.39 www 8118: }
8119: }
1.191 harris41 8120: }
1.39 www 8121: if ($realpossible!=1) { $syval=''; }
1.249 www 8122: } else {
8123: $syval='';
1.37 www 8124: }
8125: }
8126: untie(%bighash)
1.481 raeburn 8127: }
1.31 www 8128: }
1.62 www 8129: if ($syval) {
1.620 albertel 8130: return $env{$cache_str}=$syval;
1.62 www 8131: }
1.31 www 8132: }
1.949 raeburn 8133: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8134: return $env{$cache_str}='';
1.31 www 8135: }
8136:
8137: # ---------------------------------------------------------- Return random seed
8138:
1.32 www 8139: sub numval {
8140: my $txt=shift;
8141: $txt=~tr/A-J/0-9/;
8142: $txt=~tr/a-j/0-9/;
8143: $txt=~tr/K-T/0-9/;
8144: $txt=~tr/k-t/0-9/;
8145: $txt=~tr/U-Z/0-5/;
8146: $txt=~tr/u-z/0-5/;
8147: $txt=~s/\D//g;
1.564 albertel 8148: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 8149: return int($txt);
1.368 albertel 8150: }
8151:
1.484 albertel 8152: sub numval2 {
8153: my $txt=shift;
8154: $txt=~tr/A-J/0-9/;
8155: $txt=~tr/a-j/0-9/;
8156: $txt=~tr/K-T/0-9/;
8157: $txt=~tr/k-t/0-9/;
8158: $txt=~tr/U-Z/0-5/;
8159: $txt=~tr/u-z/0-5/;
8160: $txt=~s/\D//g;
8161: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8162: my $total;
8163: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 8164: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 8165: return int($total);
8166: }
8167:
1.575 albertel 8168: sub numval3 {
8169: use integer;
8170: my $txt=shift;
8171: $txt=~tr/A-J/0-9/;
8172: $txt=~tr/a-j/0-9/;
8173: $txt=~tr/K-T/0-9/;
8174: $txt=~tr/k-t/0-9/;
8175: $txt=~tr/U-Z/0-5/;
8176: $txt=~tr/u-z/0-5/;
8177: $txt=~s/\D//g;
8178: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8179: my $total;
8180: foreach my $val (@txts) { $total+=$val; }
8181: if ($_64bit) { $total=(($total<<32)>>32); }
8182: return $total;
8183: }
8184:
1.675 albertel 8185: sub digest {
8186: my ($data)=@_;
8187: my $digest=&Digest::MD5::md5($data);
8188: my ($a,$b,$c,$d)=unpack("iiii",$digest);
8189: my ($e,$f);
8190: {
8191: use integer;
8192: $e=($a+$b);
8193: $f=($c+$d);
8194: if ($_64bit) {
8195: $e=(($e<<32)>>32);
8196: $f=(($f<<32)>>32);
8197: }
8198: }
8199: if (wantarray) {
8200: return ($e,$f);
8201: } else {
8202: my $g;
8203: {
8204: use integer;
8205: $g=($e+$f);
8206: if ($_64bit) {
8207: $g=(($g<<32)>>32);
8208: }
8209: }
8210: return $g;
8211: }
8212: }
8213:
1.368 albertel 8214: sub latest_rnd_algorithm_id {
1.675 albertel 8215: return '64bit5';
1.366 albertel 8216: }
1.32 www 8217:
1.503 albertel 8218: sub get_rand_alg {
8219: my ($courseid)=@_;
1.790 albertel 8220: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 8221: if ($courseid) {
1.620 albertel 8222: return $env{"course.$courseid.rndseed"};
1.503 albertel 8223: }
8224: return &latest_rnd_algorithm_id();
8225: }
8226:
1.562 albertel 8227: sub validCODE {
8228: my ($CODE)=@_;
8229: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
8230: return 0;
8231: }
8232:
1.491 albertel 8233: sub getCODE {
1.620 albertel 8234: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 8235: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
8236: defined($Apache::lonhomework::parsing_a_task) ) &&
8237: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 8238: return $Apache::lonhomework::history{'resource.CODE'};
8239: }
8240: return undef;
8241: }
8242:
1.31 www 8243: sub rndseed {
1.155 albertel 8244: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 8245: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 8246: if (!defined($symb)) {
1.366 albertel 8247: unless ($symb=$wsymb) { return time; }
8248: }
8249: if (!$courseid) { $courseid=$wcourseid; }
8250: if (!$domain) { $domain=$wdomain; }
8251: if (!$username) { $username=$wusername }
1.503 albertel 8252: my $which=&get_rand_alg();
1.803 albertel 8253:
1.491 albertel 8254: if (defined(&getCODE())) {
1.675 albertel 8255: if ($which eq '64bit5') {
8256: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
8257: } elsif ($which eq '64bit4') {
1.575 albertel 8258: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
8259: } else {
8260: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
8261: }
1.675 albertel 8262: } elsif ($which eq '64bit5') {
8263: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 8264: } elsif ($which eq '64bit4') {
8265: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 8266: } elsif ($which eq '64bit3') {
8267: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 8268: } elsif ($which eq '64bit2') {
8269: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 8270: } elsif ($which eq '64bit') {
8271: return &rndseed_64bit($symb,$courseid,$domain,$username);
8272: }
8273: return &rndseed_32bit($symb,$courseid,$domain,$username);
8274: }
8275:
8276: sub rndseed_32bit {
8277: my ($symb,$courseid,$domain,$username)=@_;
8278: {
8279: use integer;
8280: my $symbchck=unpack("%32C*",$symb) << 27;
8281: my $symbseed=numval($symb) << 22;
8282: my $namechck=unpack("%32C*",$username) << 17;
8283: my $nameseed=numval($username) << 12;
8284: my $domainseed=unpack("%32C*",$domain) << 7;
8285: my $courseseed=unpack("%32C*",$courseid);
8286: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 8287: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8288: #&logthis("rndseed :$num:$symb");
1.564 albertel 8289: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 8290: return $num;
8291: }
8292: }
8293:
8294: sub rndseed_64bit {
8295: my ($symb,$courseid,$domain,$username)=@_;
8296: {
8297: use integer;
8298: my $symbchck=unpack("%32S*",$symb) << 21;
8299: my $symbseed=numval($symb) << 10;
8300: my $namechck=unpack("%32S*",$username);
8301:
8302: my $nameseed=numval($username) << 21;
8303: my $domainseed=unpack("%32S*",$domain) << 10;
8304: my $courseseed=unpack("%32S*",$courseid);
8305:
8306: my $num1=$symbchck+$symbseed+$namechck;
8307: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8308: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8309: #&logthis("rndseed :$num:$symb");
1.564 albertel 8310: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 8311: return "$num1,$num2";
1.155 albertel 8312: }
1.366 albertel 8313: }
8314:
1.443 albertel 8315: sub rndseed_64bit2 {
8316: my ($symb,$courseid,$domain,$username)=@_;
8317: {
8318: use integer;
8319: # strings need to be an even # of cahracters long, it it is odd the
8320: # last characters gets thrown away
8321: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8322: my $symbseed=numval($symb) << 10;
8323: my $namechck=unpack("%32S*",$username.' ');
8324:
8325: my $nameseed=numval($username) << 21;
1.501 albertel 8326: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8327: my $courseseed=unpack("%32S*",$courseid.' ');
8328:
8329: my $num1=$symbchck+$symbseed+$namechck;
8330: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8331: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8332: #&logthis("rndseed :$num:$symb");
1.803 albertel 8333: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 8334: return "$num1,$num2";
8335: }
8336: }
8337:
8338: sub rndseed_64bit3 {
8339: my ($symb,$courseid,$domain,$username)=@_;
8340: {
8341: use integer;
8342: # strings need to be an even # of cahracters long, it it is odd the
8343: # last characters gets thrown away
8344: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8345: my $symbseed=numval2($symb) << 10;
8346: my $namechck=unpack("%32S*",$username.' ');
8347:
8348: my $nameseed=numval2($username) << 21;
1.443 albertel 8349: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8350: my $courseseed=unpack("%32S*",$courseid.' ');
8351:
8352: my $num1=$symbchck+$symbseed+$namechck;
8353: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8354: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8355: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 8356: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8357:
1.503 albertel 8358: return "$num1:$num2";
1.443 albertel 8359: }
8360: }
8361:
1.575 albertel 8362: sub rndseed_64bit4 {
8363: my ($symb,$courseid,$domain,$username)=@_;
8364: {
8365: use integer;
8366: # strings need to be an even # of cahracters long, it it is odd the
8367: # last characters gets thrown away
8368: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8369: my $symbseed=numval3($symb) << 10;
8370: my $namechck=unpack("%32S*",$username.' ');
8371:
8372: my $nameseed=numval3($username) << 21;
8373: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8374: my $courseseed=unpack("%32S*",$courseid.' ');
8375:
8376: my $num1=$symbchck+$symbseed+$namechck;
8377: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8378: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8379: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 8380: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8381:
8382: return "$num1:$num2";
8383: }
8384: }
8385:
1.675 albertel 8386: sub rndseed_64bit5 {
8387: my ($symb,$courseid,$domain,$username)=@_;
8388: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
8389: return "$num1:$num2";
8390: }
8391:
1.366 albertel 8392: sub rndseed_CODE_64bit {
8393: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 8394: {
1.366 albertel 8395: use integer;
1.443 albertel 8396: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 8397: my $symbseed=numval2($symb);
1.491 albertel 8398: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8399: my $CODEseed=numval(&getCODE());
1.443 albertel 8400: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 8401: my $num1=$symbseed+$CODEchck;
8402: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8403: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8404: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 8405: if ($_64bit) { $num1=(($num1<<32)>>32); }
8406: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 8407: return "$num1:$num2";
1.366 albertel 8408: }
8409: }
8410:
1.575 albertel 8411: sub rndseed_CODE_64bit4 {
8412: my ($symb,$courseid,$domain,$username)=@_;
8413: {
8414: use integer;
8415: my $symbchck=unpack("%32S*",$symb.' ') << 16;
8416: my $symbseed=numval3($symb);
8417: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8418: my $CODEseed=numval3(&getCODE());
8419: my $courseseed=unpack("%32S*",$courseid.' ');
8420: my $num1=$symbseed+$CODEchck;
8421: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8422: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8423: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 8424: if ($_64bit) { $num1=(($num1<<32)>>32); }
8425: if ($_64bit) { $num2=(($num2<<32)>>32); }
8426: return "$num1:$num2";
8427: }
8428: }
8429:
1.675 albertel 8430: sub rndseed_CODE_64bit5 {
8431: my ($symb,$courseid,$domain,$username)=@_;
8432: my $code = &getCODE();
8433: my ($num1,$num2)=&digest("$symb,$courseid,$code");
8434: return "$num1:$num2";
8435: }
8436:
1.366 albertel 8437: sub setup_random_from_rndseed {
8438: my ($rndseed)=@_;
1.503 albertel 8439: if ($rndseed =~/([,:])/) {
8440: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 8441: &Math::Random::random_set_seed(abs($num1),abs($num2));
8442: } else {
8443: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 8444: }
1.36 albertel 8445: }
8446:
1.474 albertel 8447: sub latest_receipt_algorithm_id {
1.835 albertel 8448: return 'receipt3';
1.474 albertel 8449: }
8450:
1.480 www 8451: sub recunique {
8452: my $fucourseid=shift;
8453: my $unique;
1.835 albertel 8454: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
8455: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8456: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 8457: } else {
8458: $unique=$perlvar{'lonReceipt'};
8459: }
8460: return unpack("%32C*",$unique);
8461: }
8462:
8463: sub recprefix {
8464: my $fucourseid=shift;
8465: my $prefix;
1.835 albertel 8466: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
8467: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8468: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 8469: } else {
8470: $prefix=$perlvar{'lonHostID'};
8471: }
8472: return unpack("%32C*",$prefix);
8473: }
8474:
1.76 www 8475: sub ireceipt {
1.474 albertel 8476: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 8477:
8478: my $return =&recprefix($fucourseid).'-';
8479:
8480: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
8481: $env{'request.state'} eq 'construct') {
8482: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
8483: return $return;
8484: }
8485:
1.76 www 8486: my $cuname=unpack("%32C*",$funame);
8487: my $cudom=unpack("%32C*",$fudom);
8488: my $cucourseid=unpack("%32C*",$fucourseid);
8489: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 8490: my $cunique=&recunique($fucourseid);
1.474 albertel 8491: my $cpart=unpack("%32S*",$part);
1.835 albertel 8492: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
8493:
1.790 albertel 8494: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 8495:
8496: $return.= ($cunique%$cuname+
8497: $cunique%$cudom+
8498: $cusymb%$cuname+
8499: $cusymb%$cudom+
8500: $cucourseid%$cuname+
8501: $cucourseid%$cudom+
8502: $cpart%$cuname+
8503: $cpart%$cudom);
8504: } else {
8505: $return.= ($cunique%$cuname+
8506: $cunique%$cudom+
8507: $cusymb%$cuname+
8508: $cusymb%$cudom+
8509: $cucourseid%$cuname+
8510: $cucourseid%$cudom);
8511: }
8512: return $return;
1.76 www 8513: }
8514:
8515: sub receipt {
1.474 albertel 8516: my ($part)=@_;
1.790 albertel 8517: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 8518: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 8519: }
1.260 ng 8520:
1.790 albertel 8521: sub whichuser {
8522: my ($passedsymb)=@_;
8523: my ($symb,$courseid,$domain,$name,$publicuser);
8524: if (defined($env{'form.grade_symb'})) {
8525: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
8526: my $allowed=&allowed('vgr',$tmp_courseid);
8527: if (!$allowed &&
8528: exists($env{'request.course.sec'}) &&
8529: $env{'request.course.sec'} !~ /^\s*$/) {
8530: $allowed=&allowed('vgr',$tmp_courseid.
8531: '/'.$env{'request.course.sec'});
8532: }
8533: if ($allowed) {
8534: ($symb)=&get_env_multiple('form.grade_symb');
8535: $courseid=$tmp_courseid;
8536: ($domain)=&get_env_multiple('form.grade_domain');
8537: ($name)=&get_env_multiple('form.grade_username');
8538: return ($symb,$courseid,$domain,$name,$publicuser);
8539: }
8540: }
8541: if (!$passedsymb) {
8542: $symb=&symbread();
8543: } else {
8544: $symb=$passedsymb;
8545: }
8546: $courseid=$env{'request.course.id'};
8547: $domain=$env{'user.domain'};
8548: $name=$env{'user.name'};
8549: if ($name eq 'public' && $domain eq 'public') {
8550: if (!defined($env{'form.username'})) {
8551: $env{'form.username'}.=time.rand(10000000);
8552: }
8553: $name.=$env{'form.username'};
8554: }
8555: return ($symb,$courseid,$domain,$name,$publicuser);
8556:
8557: }
8558:
1.36 albertel 8559: # ------------------------------------------------------------ Serves up a file
1.472 albertel 8560: # returns either the contents of the file or
8561: # -1 if the file doesn't exist
1.481 raeburn 8562: #
8563: # if the target is a file that was uploaded via DOCS,
8564: # a check will be made to see if a current copy exists on the local server,
8565: # if it does this will be served, otherwise a copy will be retrieved from
8566: # the home server for the course and stored in /home/httpd/html/userfiles on
8567: # the local server.
1.472 albertel 8568:
1.36 albertel 8569: sub getfile {
1.538 albertel 8570: my ($file) = @_;
1.609 banghart 8571: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 8572: &repcopy($file);
8573: return &readfile($file);
8574: }
8575:
8576: sub repcopy_userfile {
8577: my ($file)=@_;
1.609 banghart 8578: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 8579: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 8580: my ($cdom,$cnum,$filename) =
1.811 albertel 8581: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 8582: my $uri="/uploaded/$cdom/$cnum/$filename";
8583: if (-e "$file") {
1.828 www 8584: # we already have a local copy, check it out
1.538 albertel 8585: my @fileinfo = stat($file);
1.828 www 8586: my $rtncode;
8587: my $info;
1.538 albertel 8588: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 8589: if ($lwpresp ne 'ok') {
1.828 www 8590: # there is no such file anymore, even though we had a local copy
1.482 albertel 8591: if ($rtncode eq '404') {
1.538 albertel 8592: unlink($file);
1.482 albertel 8593: }
8594: return -1;
8595: }
8596: if ($info < $fileinfo[9]) {
1.828 www 8597: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 8598: return 'ok';
1.828 www 8599: } else {
8600: # the file is outdated, get rid of it
8601: unlink($file);
1.482 albertel 8602: }
1.828 www 8603: }
8604: # one way or the other, at this point, we don't have the file
8605: # construct the correct path for the file
8606: my @parts = ($cdom,$cnum);
8607: if ($filename =~ m|^(.+)/[^/]+$|) {
8608: push @parts, split(/\//,$1);
8609: }
8610: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
8611: foreach my $part (@parts) {
8612: $path .= '/'.$part;
8613: if (!-e $path) {
8614: mkdir($path,0770);
1.482 albertel 8615: }
8616: }
1.828 www 8617: # now the path exists for sure
8618: # get a user agent
8619: my $ua=new LWP::UserAgent;
8620: my $transferfile=$file.'.in.transfer';
8621: # FIXME: this should flock
8622: if (-e $transferfile) { return 'ok'; }
8623: my $request;
8624: $uri=~s/^\///;
1.980 raeburn 8625: my $homeserver = &homeserver($cnum,$cdom);
8626: my $protocol = $protocol{$homeserver};
8627: $protocol = 'http' if ($protocol ne 'https');
8628: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 8629: my $response=$ua->request($request,$transferfile);
8630: # did it work?
8631: if ($response->is_error()) {
8632: unlink($transferfile);
8633: &logthis("Userfile repcopy failed for $uri");
8634: return -1;
8635: }
8636: # worked, rename the transfer file
8637: rename($transferfile,$file);
1.607 raeburn 8638: return 'ok';
1.481 raeburn 8639: }
8640:
1.517 albertel 8641: sub tokenwrapper {
8642: my $uri=shift;
1.980 raeburn 8643: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 8644: $uri=~s|^/||;
1.620 albertel 8645: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 8646: my $token=$1;
1.552 albertel 8647: my (undef,$udom,$uname,$file)=split('/',$uri,4);
8648: if ($udom && $uname && $file) {
8649: $file=~s|(\?\.*)*$||;
1.949 raeburn 8650: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 8651: my $homeserver = &homeserver($uname,$udom);
8652: my $protocol = $protocol{$homeserver};
8653: $protocol = 'http' if ($protocol ne 'https');
8654: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 8655: (($uri=~/\?/)?'&':'?').'token='.$token.
8656: '&tokenissued='.$perlvar{'lonHostID'};
8657: } else {
8658: return '/adm/notfound.html';
8659: }
8660: }
8661:
1.828 www 8662: # call with reqtype HEAD: get last modification time
8663: # call with reqtype GET: get the file contents
8664: # Do not call this with reqtype GET for large files! It loads everything into memory
8665: #
1.481 raeburn 8666: sub getuploaded {
8667: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
8668: $uri=~s/^\///;
1.980 raeburn 8669: my $homeserver = &homeserver($cnum,$cdom);
8670: my $protocol = $protocol{$homeserver};
8671: $protocol = 'http' if ($protocol ne 'https');
8672: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 8673: my $ua=new LWP::UserAgent;
8674: my $request=new HTTP::Request($reqtype,$uri);
8675: my $response=$ua->request($request);
8676: $$rtncode = $response->code;
1.482 albertel 8677: if (! $response->is_success()) {
8678: return 'failed';
8679: }
8680: if ($reqtype eq 'HEAD') {
1.486 www 8681: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 8682: } elsif ($reqtype eq 'GET') {
8683: $$info = $response->content;
1.472 albertel 8684: }
1.482 albertel 8685: return 'ok';
1.36 albertel 8686: }
8687:
1.481 raeburn 8688: sub readfile {
8689: my $file = shift;
8690: if ( (! -e $file ) || ($file eq '') ) { return -1; };
8691: my $fh;
8692: open($fh,"<$file");
8693: my $a='';
1.800 albertel 8694: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 8695: return $a;
8696: }
8697:
1.36 albertel 8698: sub filelocation {
1.590 banghart 8699: my ($dir,$file) = @_;
8700: my $location;
8701: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 8702:
8703: if ($file =~ m-^/adm/-) {
8704: $file=~s-^/adm/wrapper/-/-;
8705: $file=~s-^/adm/coursedocs/showdoc/-/-;
8706: }
1.882 albertel 8707:
1.590 banghart 8708: if ($file=~m:^/~:) { # is a contruction space reference
8709: $location = $file;
8710: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 8711: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 8712: # is a correct contruction space reference
8713: $location = $file;
1.956 raeburn 8714: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
8715: $location = $file;
1.609 banghart 8716: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 8717: my ($udom,$uname,$filename)=
1.811 albertel 8718: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 8719: my $home=&homeserver($uname,$udom);
8720: my $is_me=0;
8721: my @ids=¤t_machine_ids();
8722: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
8723: if ($is_me) {
1.955 raeburn 8724: $location=&propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 8725: } else {
8726: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
8727: $udom.'/'.$uname.'/'.$filename;
8728: }
1.882 albertel 8729: } elsif ($file =~ m-^/adm/-) {
8730: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 8731: } else {
8732: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
8733: $file=~s:^/res/:/:;
8734: if ( !( $file =~ m:^/:) ) {
8735: $location = $dir. '/'.$file;
8736: } else {
8737: $location = '/home/httpd/html/res'.$file;
8738: }
1.59 albertel 8739: }
1.590 banghart 8740: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 8741: while ($location=~m{/\.\./}) {
8742: if ($location =~ m{/[^/]+/\.\./}) {
8743: $location=~ s{/[^/]+/\.\./}{/}g;
8744: } else {
8745: $location=~ s{/\.\./}{/}g;
8746: }
8747: } #remove dir/..
1.590 banghart 8748: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
8749: return $location;
1.46 www 8750: }
1.36 albertel 8751:
1.46 www 8752: sub hreflocation {
8753: my ($dir,$file)=@_;
1.980 raeburn 8754: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 8755: $file=filelocation($dir,$file);
1.700 albertel 8756: } elsif ($file=~m-^/adm/-) {
8757: $file=~s-^/adm/wrapper/-/-;
8758: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 8759: }
8760: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
8761: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 8762: } elsif ($file=~m-/home/($match_username)/public_html/-) {
8763: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 8764: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 8765: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 8766: -/uploaded/$1/$2/-x;
1.46 www 8767: }
1.913 albertel 8768: if ($file=~ m{^/userfiles/}) {
8769: $file =~ s{^/userfiles/}{/uploaded/};
8770: }
1.462 albertel 8771: return $file;
1.465 albertel 8772: }
8773:
8774: sub current_machine_domains {
1.853 albertel 8775: return &machine_domains(&hostname($perlvar{'lonHostID'}));
8776: }
8777:
8778: sub machine_domains {
8779: my ($hostname) = @_;
1.465 albertel 8780: my @domains;
1.838 albertel 8781: my %hostname = &all_hostnames();
1.465 albertel 8782: while( my($id, $name) = each(%hostname)) {
1.467 matthew 8783: # &logthis("-$id-$name-$hostname-");
1.465 albertel 8784: if ($hostname eq $name) {
1.844 albertel 8785: push(@domains,&host_domain($id));
1.465 albertel 8786: }
8787: }
8788: return @domains;
8789: }
8790:
8791: sub current_machine_ids {
1.853 albertel 8792: return &machine_ids(&hostname($perlvar{'lonHostID'}));
8793: }
8794:
8795: sub machine_ids {
8796: my ($hostname) = @_;
8797: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 8798: my @ids;
1.888 albertel 8799: my %name_to_host = &all_names();
1.889 albertel 8800: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
8801: return @{ $name_to_host{$hostname} };
8802: }
8803: return;
1.31 www 8804: }
8805:
1.824 raeburn 8806: sub additional_machine_domains {
8807: my @domains;
8808: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
8809: while( my $line = <$fh>) {
8810: $line =~ s/\s//g;
8811: push(@domains,$line);
8812: }
8813: return @domains;
8814: }
8815:
8816: sub default_login_domain {
8817: my $domain = $perlvar{'lonDefDomain'};
8818: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
8819: foreach my $posdom (¤t_machine_domains(),
8820: &additional_machine_domains()) {
8821: if (lc($posdom) eq lc($testdomain)) {
8822: $domain=$posdom;
8823: last;
8824: }
8825: }
8826: return $domain;
8827: }
8828:
1.31 www 8829: # ------------------------------------------------------------- Declutters URLs
8830:
8831: sub declutter {
8832: my $thisfn=shift;
1.569 albertel 8833: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 8834: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 8835: $thisfn=~s/^\///;
1.697 albertel 8836: $thisfn=~s|^adm/wrapper/||;
8837: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 8838: $thisfn=~s/^res\///;
1.235 www 8839: $thisfn=~s/\?.+$//;
1.268 www 8840: return $thisfn;
8841: }
8842:
8843: # ------------------------------------------------------------- Clutter up URLs
8844:
8845: sub clutter {
8846: my $thisfn='/'.&declutter(shift);
1.887 albertel 8847: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 8848: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 8849: $thisfn='/res'.$thisfn;
8850: }
1.694 albertel 8851: if ($thisfn !~m|/adm|) {
1.695 albertel 8852: if ($thisfn =~ m|/ext/|) {
1.694 albertel 8853: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 8854: } else {
8855: my ($ext) = ($thisfn =~ /\.(\w+)$/);
8856: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 8857: if ($embstyle eq 'ssi'
8858: || ($embstyle eq 'hdn')
8859: || ($embstyle eq 'rat')
8860: || ($embstyle eq 'prv')
8861: || ($embstyle eq 'ign')) {
8862: #do nothing with these
8863: } elsif (($embstyle eq 'img')
1.695 albertel 8864: || ($embstyle eq 'emb')
8865: || ($embstyle eq 'wrp')) {
8866: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 8867: } elsif ($embstyle eq 'unk'
8868: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 8869: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 8870: } else {
1.718 www 8871: # &logthis("Got a blank emb style");
1.695 albertel 8872: }
1.694 albertel 8873: }
8874: }
1.31 www 8875: return $thisfn;
1.12 www 8876: }
8877:
1.787 albertel 8878: sub clutter_with_no_wrapper {
8879: my $uri = &clutter(shift);
8880: if ($uri =~ m-^/adm/-) {
8881: $uri =~ s-^/adm/wrapper/-/-;
8882: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
8883: }
8884: return $uri;
8885: }
8886:
1.557 albertel 8887: sub freeze_escape {
8888: my ($value)=@_;
8889: if (ref($value)) {
8890: $value=&nfreeze($value);
8891: return '__FROZEN__'.&escape($value);
8892: }
8893: return &escape($value);
8894: }
8895:
1.11 www 8896:
1.557 albertel 8897: sub thaw_unescape {
8898: my ($value)=@_;
8899: if ($value =~ /^__FROZEN__/) {
8900: substr($value,0,10,undef);
8901: $value=&unescape($value);
8902: return &thaw($value);
8903: }
8904: return &unescape($value);
8905: }
8906:
1.436 albertel 8907: sub correct_line_ends {
8908: my ($result)=@_;
8909: $$result =~s/\r\n/\n/mg;
8910: $$result =~s/\r/\n/mg;
1.415 albertel 8911: }
1.1 albertel 8912: # ================================================================ Main Program
8913:
1.184 www 8914: sub goodbye {
1.204 albertel 8915: &logthis("Starting Shut down");
1.443 albertel 8916: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 8917: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 8918: #converted
1.599 albertel 8919: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 8920: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
8921: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
8922: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 8923: #1.1 only
1.870 albertel 8924: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
8925: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
8926: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
8927: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
8928: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 8929: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
8930: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 8931: &flushcourselogs();
8932: &logthis("Shutting down");
8933: }
8934:
1.852 albertel 8935: sub get_dns {
1.869 albertel 8936: my ($url,$func,$ignore_cache) = @_;
8937: if (!$ignore_cache) {
8938: my ($content,$cached)=
8939: &Apache::lonnet::is_cached_new('dns',$url);
8940: if ($cached) {
8941: &$func($content);
8942: return;
8943: }
8944: }
8945:
8946: my %alldns;
1.852 albertel 8947: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
8948: foreach my $dns (<$config>) {
8949: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 8950: my $line = $1;
8951: my ($host,$protocol) = split(/:/,$line);
8952: if ($protocol ne 'https') {
8953: $protocol = 'http';
8954: }
8955: $alldns{$host} = $protocol;
1.869 albertel 8956: }
8957: while (%alldns) {
8958: my ($dns) = keys(%alldns);
1.852 albertel 8959: my $ua=new LWP::UserAgent;
1.979 raeburn 8960: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 8961: my $response=$ua->request($request);
1.979 raeburn 8962: delete($alldns{$dns});
1.852 albertel 8963: next if ($response->is_error());
8964: my @content = split("\n",$response->content);
1.869 albertel 8965: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 8966: &$func(\@content);
1.869 albertel 8967: return;
1.852 albertel 8968: }
8969: close($config);
1.871 albertel 8970: my $which = (split('/',$url))[3];
8971: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
8972: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 8973: my @content = <$config>;
8974: &$func(\@content);
8975: return;
1.852 albertel 8976: }
1.327 albertel 8977: # ------------------------------------------------------------ Read domain file
8978: {
1.852 albertel 8979: my $loaded;
1.846 albertel 8980: my %domain;
8981:
1.852 albertel 8982: sub parse_domain_tab {
8983: my ($lines) = @_;
8984: foreach my $line (@$lines) {
8985: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 8986:
1.846 albertel 8987: chomp($line);
1.852 albertel 8988: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 8989: my %this_domain;
8990: foreach my $field ('description', 'auth_def', 'auth_arg_def',
8991: 'lang_def', 'city', 'longi', 'lati',
8992: 'primary') {
8993: $this_domain{$field} = shift(@elements);
8994: }
8995: $domain{$name} = \%this_domain;
1.852 albertel 8996: }
8997: }
1.864 albertel 8998:
8999: sub reset_domain_info {
9000: undef($loaded);
9001: undef(%domain);
9002: }
9003:
1.852 albertel 9004: sub load_domain_tab {
1.869 albertel 9005: my ($ignore_cache) = @_;
9006: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 9007: my $fh;
9008: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
9009: my @lines = <$fh>;
9010: &parse_domain_tab(\@lines);
1.448 albertel 9011: }
1.852 albertel 9012: close($fh);
9013: $loaded = 1;
1.327 albertel 9014: }
1.846 albertel 9015:
9016: sub domain {
1.852 albertel 9017: &load_domain_tab() if (!$loaded);
9018:
1.846 albertel 9019: my ($name,$what) = @_;
9020: return if ( !exists($domain{$name}) );
9021:
9022: if (!$what) {
9023: return $domain{$name}{'description'};
9024: }
9025: return $domain{$name}{$what};
9026: }
1.974 raeburn 9027:
9028: sub domain_info {
9029: &load_domain_tab() if (!$loaded);
9030: return %domain;
9031: }
9032:
1.327 albertel 9033: }
9034:
9035:
1.1 albertel 9036: # ------------------------------------------------------------- Read hosts file
9037: {
1.838 albertel 9038: my %hostname;
1.844 albertel 9039: my %hostdom;
1.845 albertel 9040: my %libserv;
1.852 albertel 9041: my $loaded;
1.888 albertel 9042: my %name_to_host;
1.852 albertel 9043:
9044: sub parse_hosts_tab {
9045: my ($file) = @_;
9046: foreach my $configline (@$file) {
9047: next if ($configline =~ /^(\#|\s*$ )/x);
9048: next if ($configline =~ /^\^/);
9049: chomp($configline);
1.968 raeburn 9050: my ($id,$domain,$role,$name,$protocol)=split(/:/,$configline);
1.852 albertel 9051: $name=~s/\s//g;
9052: if ($id && $domain && $role && $name) {
9053: $hostname{$id}=$name;
1.888 albertel 9054: push(@{$name_to_host{$name}}, $id);
1.852 albertel 9055: $hostdom{$id}=$domain;
9056: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 9057: if (defined($protocol)) {
9058: if ($protocol eq 'https') {
9059: $protocol{$id} = $protocol;
9060: } else {
9061: $protocol{$id} = 'http';
9062: }
1.968 raeburn 9063: } else {
1.969 raeburn 9064: $protocol{$id} = 'http';
1.968 raeburn 9065: }
1.852 albertel 9066: }
9067: }
9068: }
1.864 albertel 9069:
9070: sub reset_hosts_info {
1.897 albertel 9071: &purge_remembered();
1.864 albertel 9072: &reset_domain_info();
9073: &reset_hosts_ip_info();
1.892 albertel 9074: undef(%name_to_host);
1.864 albertel 9075: undef(%hostname);
9076: undef(%hostdom);
9077: undef(%libserv);
9078: undef($loaded);
9079: }
1.1 albertel 9080:
1.852 albertel 9081: sub load_hosts_tab {
1.869 albertel 9082: my ($ignore_cache) = @_;
9083: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 9084: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9085: my @config = <$config>;
9086: &parse_hosts_tab(\@config);
9087: close($config);
9088: $loaded=1;
1.1 albertel 9089: }
1.852 albertel 9090:
1.838 albertel 9091: sub hostname {
1.852 albertel 9092: &load_hosts_tab() if (!$loaded);
9093:
1.838 albertel 9094: my ($lonid) = @_;
9095: return $hostname{$lonid};
9096: }
1.845 albertel 9097:
1.838 albertel 9098: sub all_hostnames {
1.852 albertel 9099: &load_hosts_tab() if (!$loaded);
9100:
1.838 albertel 9101: return %hostname;
9102: }
1.845 albertel 9103:
1.888 albertel 9104: sub all_names {
9105: &load_hosts_tab() if (!$loaded);
9106:
9107: return %name_to_host;
9108: }
9109:
1.974 raeburn 9110: sub all_host_domain {
9111: &load_hosts_tab() if (!$loaded);
9112: return %hostdom;
9113: }
9114:
1.845 albertel 9115: sub is_library {
1.852 albertel 9116: &load_hosts_tab() if (!$loaded);
9117:
1.845 albertel 9118: return exists($libserv{$_[0]});
9119: }
9120:
9121: sub all_library {
1.852 albertel 9122: &load_hosts_tab() if (!$loaded);
9123:
1.845 albertel 9124: return %libserv;
9125: }
9126:
1.841 albertel 9127: sub get_servers {
1.852 albertel 9128: &load_hosts_tab() if (!$loaded);
9129:
1.841 albertel 9130: my ($domain,$type) = @_;
9131: my %possible_hosts = ($type eq 'library') ? %libserv
9132: : %hostname;
9133: my %result;
1.842 albertel 9134: if (ref($domain) eq 'ARRAY') {
9135: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 9136: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 9137: $result{$host} = $hostname;
9138: }
9139: }
9140: } else {
9141: while ( my ($host,$hostname) = each(%possible_hosts)) {
9142: if ($hostdom{$host} eq $domain) {
9143: $result{$host} = $hostname;
9144: }
1.841 albertel 9145: }
9146: }
9147: return %result;
9148: }
1.845 albertel 9149:
1.844 albertel 9150: sub host_domain {
1.852 albertel 9151: &load_hosts_tab() if (!$loaded);
9152:
1.844 albertel 9153: my ($lonid) = @_;
9154: return $hostdom{$lonid};
9155: }
9156:
1.841 albertel 9157: sub all_domains {
1.852 albertel 9158: &load_hosts_tab() if (!$loaded);
9159:
1.841 albertel 9160: my %seen;
9161: my @uniq = grep(!$seen{$_}++, values(%hostdom));
9162: return @uniq;
9163: }
1.1 albertel 9164: }
9165:
1.847 albertel 9166: {
9167: my %iphost;
1.856 albertel 9168: my %name_to_ip;
9169: my %lonid_to_ip;
1.869 albertel 9170:
1.847 albertel 9171: sub get_hosts_from_ip {
9172: my ($ip) = @_;
9173: my %iphosts = &get_iphost();
9174: if (ref($iphosts{$ip})) {
9175: return @{$iphosts{$ip}};
9176: }
9177: return;
1.839 albertel 9178: }
1.864 albertel 9179:
9180: sub reset_hosts_ip_info {
9181: undef(%iphost);
9182: undef(%name_to_ip);
9183: undef(%lonid_to_ip);
9184: }
1.856 albertel 9185:
9186: sub get_host_ip {
9187: my ($lonid) = @_;
9188: if (exists($lonid_to_ip{$lonid})) {
9189: return $lonid_to_ip{$lonid};
9190: }
9191: my $name=&hostname($lonid);
9192: my $ip = gethostbyname($name);
9193: return if (!$ip || length($ip) ne 4);
9194: $ip=inet_ntoa($ip);
9195: $name_to_ip{$name} = $ip;
9196: $lonid_to_ip{$lonid} = $ip;
9197: return $ip;
9198: }
1.847 albertel 9199:
9200: sub get_iphost {
1.869 albertel 9201: my ($ignore_cache) = @_;
1.894 albertel 9202:
1.869 albertel 9203: if (!$ignore_cache) {
9204: if (%iphost) {
9205: return %iphost;
9206: }
9207: my ($ip_info,$cached)=
9208: &Apache::lonnet::is_cached_new('iphost','iphost');
9209: if ($cached) {
9210: %iphost = %{$ip_info->[0]};
9211: %name_to_ip = %{$ip_info->[1]};
9212: %lonid_to_ip = %{$ip_info->[2]};
9213: return %iphost;
9214: }
9215: }
1.894 albertel 9216:
9217: # get yesterday's info for fallback
9218: my %old_name_to_ip;
9219: my ($ip_info,$cached)=
9220: &Apache::lonnet::is_cached_new('iphost','iphost');
9221: if ($cached) {
9222: %old_name_to_ip = %{$ip_info->[1]};
9223: }
9224:
1.888 albertel 9225: my %name_to_host = &all_names();
9226: foreach my $name (keys(%name_to_host)) {
1.847 albertel 9227: my $ip;
9228: if (!exists($name_to_ip{$name})) {
9229: $ip = gethostbyname($name);
9230: if (!$ip || length($ip) ne 4) {
1.894 albertel 9231: if (defined($old_name_to_ip{$name})) {
9232: $ip = $old_name_to_ip{$name};
9233: &logthis("Can't find $name defaulting to old $ip");
9234: } else {
9235: &logthis("Name $name no IP found");
9236: next;
9237: }
9238: } else {
9239: $ip=inet_ntoa($ip);
1.847 albertel 9240: }
9241: $name_to_ip{$name} = $ip;
9242: } else {
9243: $ip = $name_to_ip{$name};
1.653 albertel 9244: }
1.888 albertel 9245: foreach my $id (@{ $name_to_host{$name} }) {
9246: $lonid_to_ip{$id} = $ip;
9247: }
9248: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 9249: }
1.869 albertel 9250: &Apache::lonnet::do_cache_new('iphost','iphost',
9251: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 9252: 48*60*60);
1.869 albertel 9253:
1.847 albertel 9254: return %iphost;
1.598 albertel 9255: }
9256:
1.992 raeburn 9257: #
9258: # Given a DNS returns the loncapa host name for that DNS
9259: #
9260: sub host_from_dns {
9261: my ($dns) = @_;
9262: my @hosts;
9263: my $ip;
9264:
1.993 raeburn 9265: if (exists($name_to_ip{$dns})) {
1.992 raeburn 9266: $ip = $name_to_ip{$dns};
9267: }
9268: if (!$ip) {
9269: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
9270: if (length($ip) == 4) {
9271: $ip = &IO::Socket::inet_ntoa($ip);
9272: }
9273: }
9274: if ($ip) {
9275: @hosts = get_hosts_from_ip($ip);
9276: return $hosts[0];
9277: }
9278: return undef;
1.986 foxr 9279: }
1.992 raeburn 9280:
1.986 foxr 9281: }
9282:
1.862 albertel 9283: BEGIN {
9284:
9285: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
9286: unless ($readit) {
9287: {
9288: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
9289: %perlvar = (%perlvar,%{$configvars});
9290: }
9291:
9292:
1.1 albertel 9293: # ------------------------------------------------------ Read spare server file
9294: {
1.448 albertel 9295: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 9296:
9297: while (my $configline=<$config>) {
9298: chomp($configline);
1.284 matthew 9299: if ($configline) {
1.784 albertel 9300: my ($host,$type) = split(':',$configline,2);
1.785 albertel 9301: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 9302: push(@{ $spareid{$type} }, $host);
1.1 albertel 9303: }
9304: }
1.448 albertel 9305: close($config);
1.1 albertel 9306: }
1.11 www 9307: # ------------------------------------------------------------ Read permissions
9308: {
1.448 albertel 9309: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 9310:
9311: while (my $configline=<$config>) {
1.448 albertel 9312: chomp($configline);
9313: if ($configline) {
9314: my ($role,$perm)=split(/ /,$configline);
9315: if ($perm ne '') { $pr{$role}=$perm; }
9316: }
1.11 www 9317: }
1.448 albertel 9318: close($config);
1.11 www 9319: }
9320:
9321: # -------------------------------------------- Read plain texts for permissions
9322: {
1.448 albertel 9323: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 9324:
9325: while (my $configline=<$config>) {
1.448 albertel 9326: chomp($configline);
9327: if ($configline) {
1.742 raeburn 9328: my ($short,@plain)=split(/:/,$configline);
9329: %{$prp{$short}} = ();
9330: if (@plain > 0) {
9331: $prp{$short}{'std'} = $plain[0];
9332: for (my $i=1; $i<@plain; $i++) {
9333: $prp{$short}{'alt'.$i} = $plain[$i];
9334: }
9335: }
1.448 albertel 9336: }
1.135 www 9337: }
1.448 albertel 9338: close($config);
1.135 www 9339: }
9340:
9341: # ---------------------------------------------------------- Read package table
9342: {
1.448 albertel 9343: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 9344:
9345: while (my $configline=<$config>) {
1.483 albertel 9346: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 9347: chomp($configline);
9348: my ($short,$plain)=split(/:/,$configline);
9349: my ($pack,$name)=split(/\&/,$short);
9350: if ($plain ne '') {
9351: $packagetab{$pack.'&'.$name.'&name'}=$name;
9352: $packagetab{$short}=$plain;
9353: }
1.11 www 9354: }
1.448 albertel 9355: close($config);
1.329 matthew 9356: }
9357:
9358: # ------------- set up temporary directory
9359: {
9360: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
9361:
1.11 www 9362: }
9363:
1.794 albertel 9364: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
9365: 'compress_threshold'=> 20_000,
9366: });
1.185 www 9367:
1.281 www 9368: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 9369: $dumpcount=0;
1.958 www 9370: $locknum=0;
1.22 www 9371:
1.163 harris41 9372: &logtouch();
1.672 albertel 9373: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 9374: $readit=1;
1.564 albertel 9375: {
9376: use integer;
9377: my $test=(2**32)+1;
1.568 albertel 9378: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 9379: &logthis(" Detected 64bit platform ($_64bit)");
9380: }
1.195 www 9381: }
1.1 albertel 9382: }
1.179 www 9383:
1.1 albertel 9384: 1;
1.191 harris41 9385: __END__
9386:
1.243 albertel 9387: =pod
9388:
1.191 harris41 9389: =head1 NAME
9390:
1.243 albertel 9391: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 9392:
9393: =head1 SYNOPSIS
9394:
1.243 albertel 9395: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 9396:
9397: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
9398:
1.243 albertel 9399: Common parameters:
9400:
9401: =over 4
9402:
9403: =item *
9404:
9405: $uname : an internal username (if $cname expecting a course Id specifically)
9406:
9407: =item *
9408:
9409: $udom : a domain (if $cdom expecting a course's domain specifically)
9410:
9411: =item *
9412:
9413: $symb : a resource instance identifier
9414:
9415: =item *
9416:
9417: $namespace : the name of a .db file that contains the data needed or
9418: being set.
9419:
9420: =back
9421:
1.394 bowersj2 9422: =head1 OVERVIEW
1.191 harris41 9423:
1.394 bowersj2 9424: lonnet provides subroutines which interact with the
9425: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
9426: about classes, users, and resources.
1.243 albertel 9427:
9428: For many of these objects you can also use this to store data about
9429: them or modify them in various ways.
1.191 harris41 9430:
1.394 bowersj2 9431: =head2 Symbs
1.191 harris41 9432:
1.394 bowersj2 9433: To identify a specific instance of a resource, LON-CAPA uses symbols
9434: or "symbs"X<symb>. These identifiers are built from the URL of the
9435: map, the resource number of the resource in the map, and the URL of
9436: the resource itself. The latter is somewhat redundant, but might help
9437: if maps change.
9438:
9439: An example is
9440:
9441: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
9442:
9443: The respective map entry is
9444:
9445: <resource id="19" src="/res/msu/korte/tests/part12.problem"
9446: title="Problem 2">
9447: </resource>
9448:
9449: Symbs are used by the random number generator, as well as to store and
9450: restore data specific to a certain instance of for example a problem.
9451:
9452: =head2 Storing And Retrieving Data
9453:
9454: X<store()>X<cstore()>X<restore()>Three of the most important functions
9455: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
9456: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
9457: is is the non-critical message twin of cstore. These functions are for
9458: handlers to store a perl hash to a user's permanent data space in an
9459: easy manner, and to retrieve it again on another call. It is expected
9460: that a handler would use this once at the beginning to retrieve data,
9461: and then again once at the end to send only the new data back.
9462:
9463: The data is stored in the user's data directory on the user's
9464: homeserver under the ID of the course.
9465:
9466: The hash that is returned by restore will have all of the previous
9467: value for all of the elements of the hash.
9468:
9469: Example:
9470:
9471: #creating a hash
9472: my %hash;
9473: $hash{'foo'}='bar';
9474:
9475: #storing it
9476: &Apache::lonnet::cstore(\%hash);
9477:
9478: #changing a value
9479: $hash{'foo'}='notbar';
9480:
9481: #adding a new value
9482: $hash{'bar'}='foo';
9483: &Apache::lonnet::cstore(\%hash);
9484:
9485: #retrieving the hash
9486: my %history=&Apache::lonnet::restore();
9487:
9488: #print the hash
9489: foreach my $key (sort(keys(%history))) {
9490: print("\%history{$key} = $history{$key}");
9491: }
9492:
9493: Will print out:
1.191 harris41 9494:
1.394 bowersj2 9495: %history{1:foo} = bar
9496: %history{1:keys} = foo:timestamp
9497: %history{1:timestamp} = 990455579
9498: %history{2:bar} = foo
9499: %history{2:foo} = notbar
9500: %history{2:keys} = foo:bar:timestamp
9501: %history{2:timestamp} = 990455580
9502: %history{bar} = foo
9503: %history{foo} = notbar
9504: %history{timestamp} = 990455580
9505: %history{version} = 2
9506:
9507: Note that the special hash entries C<keys>, C<version> and
9508: C<timestamp> were added to the hash. C<version> will be equal to the
9509: total number of versions of the data that have been stored. The
9510: C<timestamp> attribute will be the UNIX time the hash was
9511: stored. C<keys> is available in every historical section to list which
9512: keys were added or changed at a specific historical revision of a
9513: hash.
9514:
9515: B<Warning>: do not store the hash that restore returns directly. This
9516: will cause a mess since it will restore the historical keys as if the
9517: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 9518:
1.394 bowersj2 9519: Calling convention:
1.191 harris41 9520:
1.394 bowersj2 9521: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
9522: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 9523:
1.394 bowersj2 9524: For more detailed information, see lonnet specific documentation.
1.191 harris41 9525:
1.394 bowersj2 9526: =head1 RETURN MESSAGES
1.191 harris41 9527:
1.394 bowersj2 9528: =over 4
1.191 harris41 9529:
1.394 bowersj2 9530: =item * B<con_lost>: unable to contact remote host
1.191 harris41 9531:
1.394 bowersj2 9532: =item * B<con_delayed>: unable to contact remote host, message will be delivered
9533: when the connection is brought back up
1.191 harris41 9534:
1.394 bowersj2 9535: =item * B<con_failed>: unable to contact remote host and unable to save message
9536: for later delivery
1.191 harris41 9537:
1.967 bisitz 9538: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 9539:
1.394 bowersj2 9540: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 9541: that was requested
1.191 harris41 9542:
1.243 albertel 9543: =back
1.191 harris41 9544:
1.243 albertel 9545: =head1 PUBLIC SUBROUTINES
1.191 harris41 9546:
1.243 albertel 9547: =head2 Session Environment Functions
1.191 harris41 9548:
1.243 albertel 9549: =over 4
1.191 harris41 9550:
1.394 bowersj2 9551: =item *
9552: X<appenv()>
1.949 raeburn 9553: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 9554: the user envirnoment file, and will be restored for each access this
1.620 albertel 9555: user makes during this session, also modifies the %env for the current
1.949 raeburn 9556: process. Optional rolesarrayref - if defined contains a reference to an array
9557: of roles which are exempt from the restriction on modifying user.role entries
9558: in the user's environment.db and in %env.
1.191 harris41 9559:
9560: =item *
1.394 bowersj2 9561: X<delenv()>
1.987 raeburn 9562: B<delenv($delthis,$regexp)>: removes all items from the session
9563: environment file that begin with $delthis. If the
9564: optional second arg - $regexp - is true, $delthis is treated as a
9565: regular expression, otherwise \Q$delthis\E is used.
9566: The values are also deleted from the current processes %env.
1.191 harris41 9567:
1.795 albertel 9568: =item * get_env_multiple($name)
9569:
9570: gets $name from the %env hash, it seemlessly handles the cases where multiple
9571: values may be defined and end up as an array ref.
9572:
9573: returns an array of values
9574:
1.243 albertel 9575: =back
9576:
9577: =head2 User Information
1.191 harris41 9578:
1.243 albertel 9579: =over 4
1.191 harris41 9580:
9581: =item *
1.394 bowersj2 9582: X<queryauthenticate()>
9583: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 9584: authentication scheme
9585:
9586: =item *
1.394 bowersj2 9587: X<authenticate()>
9588: B<authenticate($uname,$upass,$udom)>: try to
9589: authenticate user from domain's lib servers (first use the current
9590: one). C<$upass> should be the users password.
1.191 harris41 9591:
9592: =item *
1.394 bowersj2 9593: X<homeserver()>
9594: B<homeserver($uname,$udom)>: find the server which has
9595: the user's directory and files (there must be only one), this caches
9596: the answer, and also caches if there is a borken connection.
1.191 harris41 9597:
9598: =item *
1.394 bowersj2 9599: X<idget()>
9600: B<idget($udom,@ids)>: find the usernames behind a list of IDs
9601: (IDs are a unique resource in a domain, there must be only 1 ID per
9602: username, and only 1 username per ID in a specific domain) (returns
9603: hash: id=>name,id=>name)
1.191 harris41 9604:
9605: =item *
1.394 bowersj2 9606: X<idrget()>
9607: B<idrget($udom,@unames)>: find the IDs behind a list of
9608: usernames (returns hash: name=>id,name=>id)
1.191 harris41 9609:
9610: =item *
1.394 bowersj2 9611: X<idput()>
9612: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 9613:
9614: =item *
1.394 bowersj2 9615: X<rolesinit()>
9616: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 9617:
9618: =item *
1.551 albertel 9619: X<getsection()>
9620: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 9621: course $cname, return section name/number or '' for "not in course"
9622: and '-1' for "no section"
9623:
9624: =item *
1.394 bowersj2 9625: X<userenvironment()>
9626: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 9627: passed in @what from the requested user's environment, returns a hash
9628:
1.858 raeburn 9629: =item *
9630: X<userlog_query()>
1.859 albertel 9631: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
9632: activity.log file. %filters defines filters applied when parsing the
9633: log file. These can be start or end timestamps, or the type of action
9634: - log to look for Login or Logout events, check for Checkin or
9635: Checkout, role for role selection. The response is in the form
9636: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
9637: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 9638:
1.243 albertel 9639: =back
9640:
9641: =head2 User Roles
9642:
9643: =over 4
9644:
9645: =item *
9646:
1.810 raeburn 9647: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 9648: F: full access
9649: U,I,K: authentication modes (cxx only)
9650: '': forbidden
9651: 1: user needs to choose course
9652: 2: browse allowed
1.766 albertel 9653: A: passphrase authentication needed
1.243 albertel 9654:
9655: =item *
9656:
9657: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
9658: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
9659: and course level
9660:
9661: =item *
9662:
1.988 raeburn 9663: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
9664: (rolesplain.tab); plain text explanation of a user role term.
9665: $type is Course (default) or Group.
9666: If $forcedefault evaluates to true, text returned will be default
9667: text for $type. Otherwise, if this is a course, the text returned
9668: will be a custom name for the role (if defined in the course's
9669: environment). If no custom name is defined the default is returned.
9670:
1.832 raeburn 9671: =item *
9672:
1.935 raeburn 9673: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 9674: All arguments are optional. Returns a hash of a roles, either for
9675: co-author/assistant author roles for a user's Construction Space
1.906 albertel 9676: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 9677: In the hash, keys are set to colon-separated $uname,$udom,$role, and
9678: (optionally) if $withsec is true, a fourth colon-separated item - $section.
9679: For each key, value is set to colon-separated start and end times for
9680: the role. If no username and domain are specified, will default to
1.934 raeburn 9681: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 9682: of role statuses (active, future or previous), roles
9683: (e.g., cc,in, st etc.) and domains of the roles which can be used
9684: to restrict the list of roles reported. If no array ref is
9685: provided for types, will default to return only active roles.
1.834 albertel 9686:
1.243 albertel 9687: =back
9688:
9689: =head2 User Modification
9690:
9691: =over 4
9692:
9693: =item *
9694:
1.957 raeburn 9695: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 9696: user for the level given by URL. Optional start and end dates (leave empty
9697: string or zero for "no date")
1.191 harris41 9698:
9699: =item *
9700:
1.243 albertel 9701: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
9702: change a users, password, possible return values are: ok,
9703: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
9704: refused
1.191 harris41 9705:
9706: =item *
9707:
1.243 albertel 9708: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 9709:
9710: =item *
9711:
1.963 raeburn 9712: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,
9713: $forceid,$desiredhome,$email,$inststatus) :
1.243 albertel 9714: modify user
1.191 harris41 9715:
9716: =item *
9717:
1.286 matthew 9718: modifystudent
9719:
1.957 raeburn 9720: modify a student's enrollment and identification information.
1.286 matthew 9721: The course id is resolved based on the current users environment.
9722: This means the envoking user must be a course coordinator or otherwise
9723: associated with a course.
9724:
1.297 matthew 9725: This call is essentially a wrapper for lonnet::modifyuser and
9726: lonnet::modify_student_enrollment
1.286 matthew 9727:
9728: Inputs:
9729:
9730: =over 4
9731:
1.957 raeburn 9732: =item B<$udom> Student's loncapa domain
1.286 matthew 9733:
1.957 raeburn 9734: =item B<$uname> Student's loncapa login name
1.286 matthew 9735:
1.964 bisitz 9736: =item B<$uid> Student/Employee ID
1.286 matthew 9737:
1.957 raeburn 9738: =item B<$umode> Student's authentication mode
1.286 matthew 9739:
1.957 raeburn 9740: =item B<$upass> Student's password
1.286 matthew 9741:
1.957 raeburn 9742: =item B<$first> Student's first name
1.286 matthew 9743:
1.957 raeburn 9744: =item B<$middle> Student's middle name
1.286 matthew 9745:
1.957 raeburn 9746: =item B<$last> Student's last name
1.286 matthew 9747:
1.957 raeburn 9748: =item B<$gene> Student's generation
1.286 matthew 9749:
1.957 raeburn 9750: =item B<$usec> Student's section in course
1.286 matthew 9751:
9752: =item B<$end> Unix time of the roles expiration
9753:
9754: =item B<$start> Unix time of the roles start date
9755:
9756: =item B<$forceid> If defined, allow $uid to be changed
9757:
9758: =item B<$desiredhome> server to use as home server for student
9759:
1.957 raeburn 9760: =item B<$email> Student's permanent e-mail address
9761:
9762: =item B<$type> Type of enrollment (auto or manual)
9763:
1.963 raeburn 9764: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
9765:
9766: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 9767:
1.963 raeburn 9768: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 9769:
1.963 raeburn 9770: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 9771:
1.963 raeburn 9772: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 9773:
1.286 matthew 9774: =back
1.297 matthew 9775:
9776: =item *
9777:
9778: modify_student_enrollment
9779:
9780: Change a students enrollment status in a class. The environment variable
9781: 'role.request.course' must be defined for this function to proceed.
9782:
9783: Inputs:
9784:
9785: =over 4
9786:
9787: =item $udom, students domain
9788:
9789: =item $uname, students name
9790:
9791: =item $uid, students user id
9792:
9793: =item $first, students first name
9794:
9795: =item $middle
9796:
9797: =item $last
9798:
9799: =item $gene
9800:
9801: =item $usec
9802:
9803: =item $end
9804:
9805: =item $start
9806:
1.957 raeburn 9807: =item $type
9808:
9809: =item $locktype
9810:
9811: =item $cid
9812:
9813: =item $selfenroll
9814:
9815: =item $context
9816:
1.297 matthew 9817: =back
9818:
1.191 harris41 9819:
9820: =item *
9821:
1.243 albertel 9822: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
9823: custom role; give a custom role to a user for the level given by URL. Specify
9824: name and domain of role author, and role name
1.191 harris41 9825:
9826: =item *
9827:
1.243 albertel 9828: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 9829:
9830: =item *
9831:
1.243 albertel 9832: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
9833:
9834: =back
9835:
9836: =head2 Course Infomation
9837:
9838: =over 4
1.191 harris41 9839:
9840: =item *
9841:
1.631 albertel 9842: coursedescription($courseid) : returns a hash of information about the
9843: specified course id, including all environment settings for the
9844: course, the description of the course will be in the hash under the
9845: key 'description'
1.191 harris41 9846:
9847: =item *
9848:
1.624 albertel 9849: resdata($name,$domain,$type,@which) : request for current parameter
9850: setting for a specific $type, where $type is either 'course' or 'user',
9851: @what should be a list of parameters to ask about. This routine caches
9852: answers for 5 minutes.
1.243 albertel 9853:
1.877 foxr 9854: =item *
9855:
9856: get_courseresdata($courseid, $domain) : dump the entire course resource
9857: data base, returning a hash that is keyed by the resource name and has
9858: values that are the resource value. I believe that the timestamps and
9859: versions are also returned.
9860:
9861:
1.243 albertel 9862: =back
9863:
9864: =head2 Course Modification
9865:
9866: =over 4
1.191 harris41 9867:
9868: =item *
9869:
1.243 albertel 9870: writecoursepref($courseid,%prefs) : write preferences (environment
9871: database) for a course
1.191 harris41 9872:
9873: =item *
9874:
1.243 albertel 9875: createcourse($udom,$description,$url) : make/modify course
9876:
9877: =back
9878:
9879: =head2 Resource Subroutines
9880:
9881: =over 4
1.191 harris41 9882:
9883: =item *
9884:
1.243 albertel 9885: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 9886:
9887: =item *
9888:
1.243 albertel 9889: repcopy($filename) : subscribes to the requested file, and attempts to
9890: replicate from the owning library server, Might return
1.607 raeburn 9891: 'unavailable', 'not_found', 'forbidden', 'ok', or
9892: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 9893: resource. Expects the local filesystem pathname
9894: (/home/httpd/html/res/....)
9895:
9896: =back
9897:
9898: =head2 Resource Information
9899:
9900: =over 4
1.191 harris41 9901:
9902: =item *
9903:
1.243 albertel 9904: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
9905: a vairety of different possible values, $varname should be a request
9906: string, and the other parameters can be used to specify who and what
9907: one is asking about.
9908:
9909: Possible values for $varname are environment.lastname (or other item
9910: from the envirnment hash), user.name (or someother aspect about the
9911: user), resource.0.maxtries (or some other part and parameter of a
9912: resource)
1.204 albertel 9913:
9914: =item *
9915:
1.243 albertel 9916: directcondval($number) : get current value of a condition; reads from a state
9917: string
1.204 albertel 9918:
9919: =item *
9920:
1.243 albertel 9921: condval($condidx) : value of condition index based on state
1.204 albertel 9922:
9923: =item *
9924:
1.243 albertel 9925: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
9926: resource's metadata, $what should be either a specific key, or either
9927: 'keys' (to get a list of possible keys) or 'packages' to get a list of
9928: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
9929:
9930: this function automatically caches all requests
1.191 harris41 9931:
9932: =item *
9933:
1.243 albertel 9934: metadata_query($query,$custom,$customshow) : make a metadata query against the
9935: network of library servers; returns file handle of where SQL and regex results
9936: will be stored for query
1.191 harris41 9937:
9938: =item *
9939:
1.243 albertel 9940: symbread($filename) : return symbolic list entry (filename argument optional);
9941: returns the data handle
1.191 harris41 9942:
9943: =item *
9944:
1.243 albertel 9945: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 9946: a possible symb for the URL in $thisfn, and if is an encryypted
9947: resource that the user accessed using /enc/ returns a 1 on success, 0
9948: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 9949: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 9950:
1.191 harris41 9951:
9952: =item *
9953:
1.243 albertel 9954: symbclean($symb) : removes versions numbers from a symb, returns the
9955: cleaned symb
1.191 harris41 9956:
9957: =item *
9958:
1.243 albertel 9959: is_on_map($uri) : checks if the $uri is somewhere on the current
9960: course map, user must be in a course for it to work.
1.191 harris41 9961:
9962: =item *
9963:
1.243 albertel 9964: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 9965:
9966: =item *
9967:
1.243 albertel 9968: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
9969: a random seed, all arguments are optional, if they aren't sent it uses the
9970: environment to derive them. Note: if symb isn't sent and it can't get one
9971: from &symbread it will use the current time as its return value
1.191 harris41 9972:
9973: =item *
9974:
1.243 albertel 9975: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
9976: unfakeable, receipt
1.191 harris41 9977:
9978: =item *
9979:
1.620 albertel 9980: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 9981:
9982: =item *
9983:
1.243 albertel 9984: countacc($url) : count the number of accesses to a given URL
1.191 harris41 9985:
9986: =item *
9987:
1.243 albertel 9988: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 9989:
9990: =item *
9991:
1.243 albertel 9992: checkin($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 $tcrsid)
1.191 harris41 9993:
9994: =item *
9995:
1.243 albertel 9996: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 9997:
9998: =item *
9999:
1.243 albertel 10000: devalidate($symb) : devalidate temporary spreadsheet calculations,
10001: forcing spreadsheet to reevaluate the resource scores next time.
10002:
10003: =back
10004:
10005: =head2 Storing/Retreiving Data
10006:
10007: =over 4
1.191 harris41 10008:
10009: =item *
10010:
1.243 albertel 10011: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
10012: for this url; hashref needs to be given and should be a \%hashname; the
10013: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 10014: be derived from the env
1.191 harris41 10015:
10016: =item *
10017:
1.243 albertel 10018: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
10019: uses critical subroutine
1.191 harris41 10020:
10021: =item *
10022:
1.243 albertel 10023: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
10024: all args are optional
1.191 harris41 10025:
10026: =item *
10027:
1.717 albertel 10028: dumpstore($namespace,$udom,$uname,$regexp,$range) :
10029: dumps the complete (or key matching regexp) namespace into a hash
10030: ($udom, $uname, $regexp, $range are optional) for a namespace that is
10031: normally &store()ed into
10032:
10033: $range should be either an integer '100' (give me the first 100
10034: matching records)
10035: or be two integers sperated by a - with no spaces
10036: '30-50' (give me the 30th through the 50th matching
10037: records)
10038:
10039:
10040: =item *
10041:
10042: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
10043: replaces a &store() version of data with a replacement set of data
10044: for a particular resource in a namespace passed in the $storehash hash
10045: reference
10046:
10047: =item *
10048:
1.243 albertel 10049: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
10050: works very similar to store/cstore, but all data is stored in a
10051: temporary location and can be reset using tmpreset, $storehash should
10052: be a hash reference, returns nothing on success
1.191 harris41 10053:
10054: =item *
10055:
1.243 albertel 10056: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
10057: similar to restore, but all data is stored in a temporary location and
10058: can be reset using tmpreset. Returns a hash of values on success,
10059: error string otherwise.
1.191 harris41 10060:
10061: =item *
10062:
1.243 albertel 10063: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
10064: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 10065:
10066: =item *
10067:
1.243 albertel 10068: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10069: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 10070:
10071: =item *
10072:
1.243 albertel 10073: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
10074: namesp ($udom and $uname are optional)
1.191 harris41 10075:
10076: =item *
10077:
1.702 albertel 10078: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 10079: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 10080: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 10081:
1.702 albertel 10082: $range should be either an integer '100' (give me the first 100
10083: matching records)
10084: or be two integers sperated by a - with no spaces
10085: '30-50' (give me the 30th through the 50th matching
10086: records)
1.449 matthew 10087: =item *
10088:
10089: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
10090: $store can be a scalar, an array reference, or if the amount to be
10091: incremented is > 1, a hash reference.
10092:
10093: ($udom and $uname are optional)
1.191 harris41 10094:
10095: =item *
10096:
1.243 albertel 10097: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
10098: ($udom and $uname are optional)
1.191 harris41 10099:
10100: =item *
10101:
1.243 albertel 10102: cput($namespace,$storehash,$udom,$uname) : critical put
10103: ($udom and $uname are optional)
1.191 harris41 10104:
10105: =item *
10106:
1.748 albertel 10107: newput($namespace,$storehash,$udom,$uname) :
10108:
10109: Attempts to store the items in the $storehash, but only if they don't
10110: currently exist, if this succeeds you can be certain that you have
10111: successfully created a new key value pair in the $namespace db.
10112:
10113:
10114: Args:
10115: $namespace: name of database to store values to
10116: $storehash: hashref to store to the db
10117: $udom: (optional) domain of user containing the db
10118: $uname: (optional) name of user caontaining the db
10119:
10120: Returns:
10121: 'ok' -> succeeded in storing all keys of $storehash
10122: 'key_exists: <key>' -> failed to anything out of $storehash, as at
10123: least <key> already existed in the db (other
10124: requested keys may also already exist)
1.967 bisitz 10125: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 10126: 'con_lost' -> unable to contact request server
10127: 'refused' -> action was not allowed by remote machine
10128:
10129:
10130: =item *
10131:
1.243 albertel 10132: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10133: reference filled in from namesp (encrypts the return communication)
10134: ($udom and $uname are optional)
1.191 harris41 10135:
10136: =item *
10137:
1.243 albertel 10138: log($udom,$name,$home,$message) : write to permanent log for user; use
10139: critical subroutine
10140:
1.806 raeburn 10141: =item *
10142:
1.860 raeburn 10143: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
10144: array reference filled in from namespace found in domain level on either
10145: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 10146:
10147: =item *
10148:
1.860 raeburn 10149: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
10150: domain level either on specified domain server ($uhome) or primary domain
10151: server ($udom and $uhome are optional)
1.806 raeburn 10152:
1.943 raeburn 10153: =item *
10154:
10155: get_domain_defaults($target_domain) : returns hash with defaults for
10156: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
10157: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
10158: or localauth), initial password or a kerberos realm, language (e.g., en-us).
10159: Values are retrieved from cache (if current), or from domain's configuration.db
10160: (if available), or lastly from values in lonTabs/dns_domain,tab,
10161: or lonTabs/domain.tab.
10162:
10163: %domdefaults = &get_auth_defaults($target_domain);
10164:
1.243 albertel 10165: =back
10166:
10167: =head2 Network Status Functions
10168:
10169: =over 4
1.191 harris41 10170:
10171: =item *
10172:
10173: dirlist($uri) : return directory list based on URI
10174:
10175: =item *
10176:
1.243 albertel 10177: spareserver() : find server with least workload from spare.tab
10178:
1.986 foxr 10179:
10180: =item *
10181:
10182: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
10183: if there is no corresponding loncapa host.
10184:
1.243 albertel 10185: =back
10186:
1.986 foxr 10187:
1.243 albertel 10188: =head2 Apache Request
10189:
10190: =over 4
1.191 harris41 10191:
10192: =item *
10193:
1.243 albertel 10194: ssi($url,%hash) : server side include, does a complete request cycle on url to
10195: localhost, posts hash
10196:
10197: =back
10198:
10199: =head2 Data to String to Data
10200:
10201: =over 4
1.191 harris41 10202:
10203: =item *
10204:
1.243 albertel 10205: hash2str(%hash) : convert a hash into a string complete with escaping and '='
10206: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 10207:
10208: =item *
10209:
1.243 albertel 10210: hashref2str($hashref) : convert a hashref into a string complete with
10211: escaping and '=' and '&' separators, supports elements that are
10212: arrayrefs and hashrefs
1.191 harris41 10213:
10214: =item *
10215:
1.243 albertel 10216: arrayref2str($arrayref) : convert an arrayref into a string complete
10217: with escaping and '&' separators, supports elements that are arrayrefs
10218: and hashrefs
1.191 harris41 10219:
10220: =item *
10221:
1.243 albertel 10222: str2hash($string) : convert string to hash using unescaping and
10223: splitting on '=' and '&', supports elements that are arrayrefs and
10224: hashrefs
1.191 harris41 10225:
10226: =item *
10227:
1.243 albertel 10228: str2array($string) : convert string to hash using unescaping and
10229: splitting on '&', supports elements that are arrayrefs and hashrefs
10230:
10231: =back
10232:
10233: =head2 Logging Routines
10234:
10235: =over 4
10236:
10237: These routines allow one to make log messages in the lonnet.log and
10238: lonnet.perm logfiles.
1.191 harris41 10239:
10240: =item *
10241:
1.243 albertel 10242: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 10243:
10244: =item *
10245:
1.243 albertel 10246: logthis() : append message to the normal lonnet.log file, it gets
10247: preiodically rolled over and deleted.
1.191 harris41 10248:
10249: =item *
10250:
1.243 albertel 10251: logperm() : append a permanent message to lonnet.perm.log, this log
10252: file never gets deleted by any automated portion of the system, only
10253: messages of critical importance should go in here.
10254:
10255: =back
10256:
10257: =head2 General File Helper Routines
10258:
10259: =over 4
1.191 harris41 10260:
10261: =item *
10262:
1.481 raeburn 10263: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
10264: (a) files in /uploaded
10265: (i) If a local copy of the file exists -
10266: compares modification date of local copy with last-modified date for
10267: definitive version stored on home server for course. If local copy is
10268: stale, requests a new version from the home server and stores it.
10269: If the original has been removed from the home server, then local copy
10270: is unlinked.
10271: (ii) If local copy does not exist -
10272: requests the file from the home server and stores it.
10273:
10274: If $caller is 'uploadrep':
10275: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
10276: for request for files originally uploaded via DOCS.
10277: - returns 'ok' if fresh local copy now available, -1 otherwise.
10278:
10279: Otherwise:
10280: This indicates a call from the content generation phase of the request.
10281: - returns the entire contents of the file or -1.
10282:
10283: (b) files in /res
10284: - returns the entire contents of a file or -1;
10285: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 10286:
1.712 albertel 10287:
10288: =item *
10289:
10290: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
10291: reference
10292:
10293: returns either a stat() list of data about the file or an empty list
10294: if the file doesn't exist or couldn't find out about it (connection
10295: problems or user unknown)
10296:
1.191 harris41 10297: =item *
10298:
1.243 albertel 10299: filelocation($dir,$file) : returns file system location of a file
10300: based on URI; meant to be "fairly clean" absolute reference, $dir is a
10301: directory that relative $file lookups are to looked in ($dir of /a/dir
10302: and a file of ../bob will become /a/bob)
1.191 harris41 10303:
10304: =item *
10305:
10306: hreflocation($dir,$file) : returns file system location or a URL; same as
10307: filelocation except for hrefs
10308:
10309: =item *
10310:
10311: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
10312:
1.243 albertel 10313: =back
10314:
1.608 albertel 10315: =head2 Usererfile file routines (/uploaded*)
10316:
10317: =over 4
10318:
10319: =item *
10320:
10321: userfileupload(): main rotine for putting a file in a user or course's
10322: filespace, arguments are,
10323:
1.620 albertel 10324: formname - required - this is the name of the element in $env where the
1.608 albertel 10325: filename, and the contents of the file to create/modifed exist
1.620 albertel 10326: the filename is in $env{'form.'.$formname.'.filename'} and the
10327: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 10328: coursedoc - if true, store the file in the course of the active role
10329: of the current user
10330: subdir - required - subdirectory to put the file in under ../userfiles/
10331: if undefined, it will be placed in "unknown"
10332:
10333: (This routine calls clean_filename() to remove any dangerous
10334: characters from the filename, and then calls finuserfileupload() to
10335: complete the transaction)
10336:
10337: returns either the url of the uploaded file (/uploaded/....) if successful
10338: and /adm/notfound.html if unsuccessful
10339:
10340: =item *
10341:
10342: clean_filename(): routine for cleaing a filename up for storage in
10343: userfile space, argument is:
10344:
10345: filename - proposed filename
10346:
10347: returns: the new clean filename
10348:
10349: =item *
10350:
10351: finishuserfileupload(): routine that creaes and sends the file to
10352: userspace, probably shouldn't be called directly
10353:
10354: docuname: username or courseid of destination for the file
10355: docudom: domain of user/course of destination for the file
10356: formname: same as for userfileupload()
10357: fname: filename (inculding subdirectories) for the file
10358:
10359: returns either the url of the uploaded file (/uploaded/....) if successful
10360: and /adm/notfound.html if unsuccessful
10361:
10362: =item *
10363:
10364: renameuserfile(): renames an existing userfile to a new name
10365:
10366: Args:
10367: docuname: username or courseid of destination for the file
10368: docudom: domain of user/course of destination for the file
10369: old: current file name (including any subdirs under userfiles)
10370: new: desired file name (including any subdirs under userfiles)
10371:
10372: =item *
10373:
10374: mkdiruserfile(): creates a directory is a userfiles dir
10375:
10376: Args:
10377: docuname: username or courseid of destination for the file
10378: docudom: domain of user/course of destination for the file
10379: dir: dir to create (including any subdirs under userfiles)
10380:
10381: =item *
10382:
10383: removeuserfile(): removes a file that exists in userfiles
10384:
10385: Args:
10386: docuname: username or courseid of destination for the file
10387: docudom: domain of user/course of destination for the file
10388: fname: filname to delete (including any subdirs under userfiles)
10389:
10390: =item *
10391:
10392: removeuploadedurl(): convience function for removeuserfile()
10393:
10394: Args:
10395: url: a full /uploaded/... url to delete
10396:
1.747 albertel 10397: =item *
10398:
10399: get_portfile_permissions():
10400: Args:
10401: domain: domain of user or course contain the portfolio files
10402: user: name of user or num of course contain the portfolio files
10403: Returns:
10404: hashref of a dump of the proper file_permissions.db
10405:
10406:
10407: =item *
10408:
10409: get_access_controls():
10410:
10411: Args:
10412: current_permissions: the hash ref returned from get_portfile_permissions()
10413: group: (optional) the group you want the files associated with
10414: file: (optional) the file you want access info on
10415:
10416: Returns:
1.749 raeburn 10417: a hash (keys are file names) of hashes containing
10418: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
10419: values are XML containing access control settings (see below)
1.747 albertel 10420:
10421: Internal notes:
10422:
1.749 raeburn 10423: access controls are stored in file_permissions.db as key=value pairs.
10424: key -> path to file/file_name\0uniqueID:scope_end_start
10425: where scope -> public,guest,course,group,domains or users.
10426: end -> UNIX time for end of access (0 -> no end date)
10427: start -> UNIX time for start of access
10428:
10429: value -> XML description of access control
10430: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
10431: <start></start>
10432: <end></end>
10433:
10434: <password></password> for scope type = guest
10435:
10436: <domain></domain> for scope type = course or group
10437: <number></number>
10438: <roles id="">
10439: <role></role>
10440: <access></access>
10441: <section></section>
10442: <group></group>
10443: </roles>
10444:
10445: <dom></dom> for scope type = domains
10446:
10447: <users> for scope type = users
10448: <user>
10449: <uname></uname>
10450: <udom></udom>
10451: </user>
10452: </users>
10453: </scope>
10454:
10455: Access data is also aggregated for each file in an additional key=value pair:
10456: key -> path to file/file_name\0accesscontrol
10457: value -> reference to hash
10458: hash contains key = value pairs
10459: where key = uniqueID:scope_end_start
10460: value = UNIX time record was last updated
10461:
10462: Used to improve speed of look-ups of access controls for each file.
10463:
10464: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
10465:
10466: modify_access_controls():
10467:
10468: Modifies access controls for a portfolio file
10469: Args
10470: 1. file name
10471: 2. reference to hash of required changes,
10472: 3. domain
10473: 4. username
10474: where domain,username are the domain of the portfolio owner
10475: (either a user or a course)
10476:
10477: Returns:
10478: 1. result of additions or updates ('ok' or 'error', with error message).
10479: 2. result of deletions ('ok' or 'error', with error message).
10480: 3. reference to hash of any new or updated access controls.
10481: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
10482: key = integer (inbound ID)
10483: value = uniqueID
1.747 albertel 10484:
1.608 albertel 10485: =back
10486:
1.243 albertel 10487: =head2 HTTP Helper Routines
10488:
10489: =over 4
10490:
1.191 harris41 10491: =item *
10492:
10493: escape() : unpack non-word characters into CGI-compatible hex codes
10494:
10495: =item *
10496:
10497: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
10498:
1.243 albertel 10499: =back
10500:
10501: =head1 PRIVATE SUBROUTINES
10502:
10503: =head2 Underlying communication routines (Shouldn't call)
10504:
10505: =over 4
10506:
10507: =item *
10508:
10509: subreply() : tries to pass a message to lonc, returns con_lost if incapable
10510:
10511: =item *
10512:
10513: reply() : uses subreply to send a message to remote machine, logs all failures
10514:
10515: =item *
10516:
10517: critical() : passes a critical message to another server; if cannot
10518: get through then place message in connection buffer directory and
10519: returns con_delayed, if incapable of saving message, returns
10520: con_failed
10521:
10522: =item *
10523:
10524: reconlonc() : tries to reconnect lonc client processes.
10525:
10526: =back
10527:
10528: =head2 Resource Access Logging
10529:
10530: =over 4
10531:
10532: =item *
10533:
10534: flushcourselogs() : flush (save) buffer logs and access logs
10535:
10536: =item *
10537:
10538: courselog($what) : save message for course in hash
10539:
10540: =item *
10541:
10542: courseacclog($what) : save message for course using &courselog(). Perform
10543: special processing for specific resource types (problems, exams, quizzes, etc).
10544:
1.191 harris41 10545: =item *
10546:
10547: goodbye() : flush course logs and log shutting down; it is called in srm.conf
10548: as a PerlChildExitHandler
1.243 albertel 10549:
10550: =back
10551:
10552: =head2 Other
10553:
10554: =over 4
10555:
10556: =item *
10557:
10558: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 10559:
10560: =back
10561:
10562: =cut
1.877 foxr 10563:
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