Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.1020
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.1020 ! raeburn 4: # $Id: lonnet.pm,v 1.1019 2009/08/18 20:08:25 raeburn Exp $
1.178 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.169 harris41 28: ###
29:
1.971 jms 30: =pod
31:
1.972 jms 32: =head1 NAME
33:
34: Apache::lonnet.pm
35:
36: =head1 SYNOPSIS
37:
38: This file is an interface to the lonc processes of
39: the LON-CAPA network as well as set of elaborated functions for handling information
40: necessary for navigating through a given cluster of LON-CAPA machines within a
41: domain. There are over 40 specialized functions in this module which handle the
42: reading and transmission of metadata, user information (ids, names, environments, roles,
43: logs), file information (storage, reading, directories, extensions, replication, embedded
44: styles and descriptors), educational resources (course descriptions, section names and
45: numbers), url hashing (to assign roles on a url basis), and translating abbreviated symbols to
46: and from more descriptive phrases or explanations.
47:
48: This is part of the LearningOnline Network with CAPA project
49: described at http://www.lon-capa.org.
50:
1.971 jms 51: =head1 Package Variables
52:
53: These are largely undocumented, so if you decipher one please note it here.
54:
55: =over 4
56:
57: =item $processmarker
58:
59: Contains the time this process was started and this servers host id.
60:
61: =item $dumpcount
62:
63: Counts the number of times a message log flush has been attempted (regardless
64: of success) by this process. Used as part of the filename when messages are
65: delayed.
66:
67: =back
68:
69: =cut
70:
1.1 albertel 71: package Apache::lonnet;
72:
73: use strict;
1.8 www 74: use LWP::UserAgent();
1.486 www 75: use HTTP::Date;
1.977 amueller 76: use Image::Magick;
77:
1.871 albertel 78: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
1.968 raeburn 79: $_64bit %env %protocol);
1.871 albertel 80:
81: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
82: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
83: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 84: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 85:
1.1 albertel 86: use IO::Socket;
1.31 www 87: use GDBM_File;
1.208 albertel 88: use HTML::LCParser;
1.88 www 89: use Fcntl qw(:flock);
1.870 albertel 90: use Storable qw(thaw nfreeze);
1.539 albertel 91: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 92: use Cache::Memcached;
1.676 albertel 93: use Digest::MD5;
1.790 albertel 94: use Math::Random;
1.807 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},$server);
1.191 harris41 958: }
1.344 www 959: }
960:
1.1012 raeburn 961: # ------------------------------------------------ dump from domain db files
962:
963: sub dump_dom {
964: my ($namespace,$udom,$uhome,$regexp,$range)=@_;
965: if (!$udom) {
966: $udom=$env{'user.domain'};
967: if (defined(&domain($udom,'primary'))) {
968: $uhome=&domain($udom,'primary');
969: } else {
970: undef($uhome);
971: }
972: } else {
973: if (!$uhome) {
974: if (defined(&domain($udom,'primary'))) {
975: $uhome=&domain($udom,'primary');
976: }
977: }
978: }
979: my %returnhash;
980: if ($udom && $uhome && ($uhome ne 'no_host')) {
981: if ($regexp) {
982: $regexp=&escape($regexp);
983: } else {
984: $regexp='.';
985: }
986: my $rep=&reply("dumpdom:$udom:$namespace:$regexp:$range",$uhome);
987: my @pairs=split(/\&/,$rep);
988: foreach my $item (@pairs) {
989: my ($key,$value)=split(/=/,$item,2);
990: $key = &unescape($key);
991: next if ($key =~ /^error: 2 /);
992: $returnhash{$key}=&thaw_unescape($value);
993: }
994: }
995: return %returnhash;
996: }
997:
1.806 raeburn 998: # ------------------------------------------- get items from domain db files
999:
1000: sub get_dom {
1.860 raeburn 1001: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 1002: my $items='';
1003: foreach my $item (@$storearr) {
1004: $items.=&escape($item).'&';
1005: }
1006: $items=~s/\&$//;
1.860 raeburn 1007: if (!$udom) {
1008: $udom=$env{'user.domain'};
1009: if (defined(&domain($udom,'primary'))) {
1010: $uhome=&domain($udom,'primary');
1011: } else {
1.874 albertel 1012: undef($uhome);
1.860 raeburn 1013: }
1014: } else {
1015: if (!$uhome) {
1016: if (defined(&domain($udom,'primary'))) {
1017: $uhome=&domain($udom,'primary');
1018: }
1019: }
1020: }
1021: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1022: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 1023: my %returnhash;
1.875 albertel 1024: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 1025: return %returnhash;
1026: }
1.806 raeburn 1027: my @pairs=split(/\&/,$rep);
1028: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
1029: return @pairs;
1030: }
1031: my $i=0;
1032: foreach my $item (@$storearr) {
1033: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1034: $i++;
1035: }
1036: return %returnhash;
1037: } else {
1.880 banghart 1038: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 1039: }
1040: }
1041:
1042: # -------------------------------------------- put items in domain db files
1043:
1044: sub put_dom {
1.860 raeburn 1045: my ($namespace,$storehash,$udom,$uhome)=@_;
1046: if (!$udom) {
1047: $udom=$env{'user.domain'};
1048: if (defined(&domain($udom,'primary'))) {
1049: $uhome=&domain($udom,'primary');
1050: } else {
1.874 albertel 1051: undef($uhome);
1.860 raeburn 1052: }
1053: } else {
1054: if (!$uhome) {
1055: if (defined(&domain($udom,'primary'))) {
1056: $uhome=&domain($udom,'primary');
1057: }
1058: }
1059: }
1060: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 1061: my $items='';
1062: foreach my $item (keys(%$storehash)) {
1063: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1064: }
1065: $items=~s/\&$//;
1066: return &reply("putdom:$udom:$namespace:$items",$uhome);
1067: } else {
1.860 raeburn 1068: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 1069: }
1070: }
1071:
1.1012 raeburn 1072: # -------------------------------------- newput for items in domain db files
1073:
1074: sub newput_dom {
1075: my ($namespace,$storehash,$udom,$uhome) = @_;
1076: my $result;
1077: if (!$udom) {
1078: $udom=$env{'user.domain'};
1079: if (defined(&domain($udom,'primary'))) {
1080: $uhome=&domain($udom,'primary');
1081: } else {
1082: undef($uhome);
1083: }
1084: } else {
1085: if (!$uhome) {
1086: if (defined(&domain($udom,'primary'))) {
1087: $uhome=&domain($udom,'primary');
1088: }
1089: }
1090: }
1091: if ($udom && $uhome && ($uhome ne 'no_host')) {
1092: my $items='';
1093: if (ref($storehash) eq 'HASH') {
1094: foreach my $key (keys(%$storehash)) {
1095: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1096: }
1097: $items=~s/\&$//;
1098: $result = &reply("newputdom:$udom:$namespace:$items",$uhome);
1099: }
1100: } else {
1101: &logthis("put_dom failed - no homeserver and/or domain");
1102: }
1103: return $result;
1104: }
1105:
1106: sub del_dom {
1107: my ($namespace,$storearr,$udom,$uhome)=@_;
1108: if (ref($storearr) eq 'ARRAY') {
1109: my $items='';
1110: foreach my $item (@$storearr) {
1111: $items.=&escape($item).'&';
1112: }
1113: $items=~s/\&$//;
1114: if (!$udom) {
1115: $udom=$env{'user.domain'};
1116: if (defined(&domain($udom,'primary'))) {
1117: $uhome=&domain($udom,'primary');
1118: } else {
1119: undef($uhome);
1120: }
1121: } else {
1122: if (!$uhome) {
1123: if (defined(&domain($udom,'primary'))) {
1124: $uhome=&domain($udom,'primary');
1125: }
1126: }
1127: }
1128: if ($udom && $uhome && ($uhome ne 'no_host')) {
1129: return &reply("deldom:$udom:$namespace:$items",$uhome);
1130: } else {
1131: &logthis("del_dom failed - no homeserver and/or domain");
1132: }
1133: }
1134: }
1135:
1.837 raeburn 1136: sub retrieve_inst_usertypes {
1137: my ($udom) = @_;
1138: my (%returnhash,@order);
1.989 raeburn 1139: my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
1140: if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
1141: (ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
1142: %returnhash = %{$domdefs{'inststatustypes'}};
1143: @order = @{$domdefs{'inststatusorder'}};
1144: } else {
1145: if (defined(&domain($udom,'primary'))) {
1146: my $uhome=&domain($udom,'primary');
1147: my $rep=&reply("inst_usertypes:$udom",$uhome);
1148: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
1149: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
1150: return (\%returnhash,\@order);
1151: }
1152: my ($hashitems,$orderitems) = split(/:/,$rep);
1153: my @pairs=split(/\&/,$hashitems);
1154: foreach my $item (@pairs) {
1155: my ($key,$value)=split(/=/,$item,2);
1156: $key = &unescape($key);
1157: next if ($key =~ /^error: 2 /);
1158: $returnhash{$key}=&thaw_unescape($value);
1159: }
1160: my @esc_order = split(/\&/,$orderitems);
1161: foreach my $item (@esc_order) {
1162: push(@order,&unescape($item));
1163: }
1164: } else {
1165: &logthis("get_dom failed - no primary domain server for $udom");
1.837 raeburn 1166: }
1167: }
1168: return (\%returnhash,\@order);
1169: }
1170:
1.868 raeburn 1171: sub is_domainimage {
1172: my ($url) = @_;
1173: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
1174: if (&domain($1) ne '') {
1175: return '1';
1176: }
1177: }
1178: return;
1179: }
1180:
1.899 raeburn 1181: sub inst_directory_query {
1182: my ($srch) = @_;
1183: my $udom = $srch->{'srchdomain'};
1184: my %results;
1185: my $homeserver = &domain($udom,'primary');
1.909 raeburn 1186: my $outcome;
1.899 raeburn 1187: if ($homeserver ne '') {
1.904 albertel 1188: my $queryid=&reply("querysend:instdirsearch:".
1189: &escape($srch->{'srchby'}).':'.
1190: &escape($srch->{'srchterm'}).':'.
1191: &escape($srch->{'srchtype'}),$homeserver);
1192: my $host=&hostname($homeserver);
1193: if ($queryid !~/^\Q$host\E\_/) {
1194: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1195: return;
1196: }
1197: my $response = &get_query_reply($queryid);
1198: my $maxtries = 5;
1199: my $tries = 1;
1200: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1201: $response = &get_query_reply($queryid);
1202: $tries ++;
1203: }
1204:
1205: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1206: if ($response eq 'unavailable') {
1207: $outcome = $response;
1208: } else {
1209: $outcome = 'ok';
1210: my @matches = split(/\n/,$response);
1211: foreach my $match (@matches) {
1212: my ($key,$value) = split(/=/,$match);
1213: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1214: }
1.899 raeburn 1215: }
1216: }
1217: }
1.909 raeburn 1218: return ($outcome,%results);
1.899 raeburn 1219: }
1220:
1221: sub usersearch {
1222: my ($srch) = @_;
1223: my $dom = $srch->{'srchdomain'};
1224: my %results;
1225: my %libserv = &all_library();
1226: my $query = 'usersearch';
1227: foreach my $tryserver (keys(%libserv)) {
1228: if (&host_domain($tryserver) eq $dom) {
1229: my $host=&hostname($tryserver);
1230: my $queryid=
1.911 raeburn 1231: &reply("querysend:".&escape($query).':'.
1232: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1233: &escape($srch->{'srchtype'}).':'.
1234: &escape($srch->{'srchterm'}),$tryserver);
1235: if ($queryid !~/^\Q$host\E\_/) {
1236: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1237: next;
1.899 raeburn 1238: }
1239: my $reply = &get_query_reply($queryid);
1240: my $maxtries = 1;
1241: my $tries = 1;
1242: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1243: $reply = &get_query_reply($queryid);
1244: $tries ++;
1245: }
1246: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1247: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1248: } else {
1.911 raeburn 1249: my @matches;
1250: if ($reply =~ /\n/) {
1251: @matches = split(/\n/,$reply);
1252: } else {
1253: @matches = split(/\&/,$reply);
1254: }
1.899 raeburn 1255: foreach my $match (@matches) {
1256: my ($uname,$udom,%userhash);
1.911 raeburn 1257: foreach my $entry (split(/:/,$match)) {
1258: my ($key,$value) =
1259: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1260: $userhash{$key} = $value;
1261: if ($key eq 'username') {
1262: $uname = $value;
1263: } elsif ($key eq 'domain') {
1264: $udom = $value;
1.911 raeburn 1265: }
1.899 raeburn 1266: }
1267: $results{$uname.':'.$udom} = \%userhash;
1268: }
1269: }
1270: }
1271: }
1272: return %results;
1273: }
1274:
1.912 raeburn 1275: sub get_instuser {
1276: my ($udom,$uname,$id) = @_;
1277: my $homeserver = &domain($udom,'primary');
1278: my ($outcome,%results);
1279: if ($homeserver ne '') {
1280: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1281: &escape($id).':'.&escape($udom),$homeserver);
1282: my $host=&hostname($homeserver);
1283: if ($queryid !~/^\Q$host\E\_/) {
1284: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1285: return;
1286: }
1287: my $response = &get_query_reply($queryid);
1288: my $maxtries = 5;
1289: my $tries = 1;
1290: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1291: $response = &get_query_reply($queryid);
1292: $tries ++;
1293: }
1294: if (!&error($response) && $response ne 'refused') {
1295: if ($response eq 'unavailable') {
1296: $outcome = $response;
1297: } else {
1298: $outcome = 'ok';
1299: my @matches = split(/\n/,$response);
1300: foreach my $match (@matches) {
1301: my ($key,$value) = split(/=/,$match);
1302: $results{&unescape($key)} = &thaw_unescape($value);
1303: }
1304: }
1305: }
1306: }
1307: my %userinfo;
1308: if (ref($results{$uname}) eq 'HASH') {
1309: %userinfo = %{$results{$uname}};
1310: }
1311: return ($outcome,%userinfo);
1312: }
1313:
1314: sub inst_rulecheck {
1.923 raeburn 1315: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1316: my %returnhash;
1317: if ($udom ne '') {
1318: if (ref($rules) eq 'ARRAY') {
1319: @{$rules} = map {&escape($_);} (@{$rules});
1320: my $rulestr = join(':',@{$rules});
1321: my $homeserver=&domain($udom,'primary');
1322: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1323: my $response;
1324: if ($item eq 'username') {
1325: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1326: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1327: $homeserver));
1.923 raeburn 1328: } elsif ($item eq 'id') {
1329: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1330: ':'.&escape($id).':'.$rulestr,
1331: $homeserver));
1.945 raeburn 1332: } elsif ($item eq 'selfcreate') {
1333: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1334: &escape($udom).':'.&escape($uname).
1335: ':'.$rulestr,$homeserver));
1.923 raeburn 1336: }
1.912 raeburn 1337: if ($response ne 'refused') {
1338: my @pairs=split(/\&/,$response);
1339: foreach my $item (@pairs) {
1340: my ($key,$value)=split(/=/,$item,2);
1341: $key = &unescape($key);
1342: next if ($key =~ /^error: 2 /);
1343: $returnhash{$key}=&thaw_unescape($value);
1344: }
1345: }
1346: }
1347: }
1348: }
1349: return %returnhash;
1350: }
1351:
1352: sub inst_userrules {
1.923 raeburn 1353: my ($udom,$check) = @_;
1.912 raeburn 1354: my (%ruleshash,@ruleorder);
1355: if ($udom ne '') {
1356: my $homeserver=&domain($udom,'primary');
1357: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1358: my $response;
1359: if ($check eq 'id') {
1360: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1361: $homeserver);
1.943 raeburn 1362: } elsif ($check eq 'email') {
1363: $response=&reply('instemailrules:'.&escape($udom),
1364: $homeserver);
1.923 raeburn 1365: } else {
1366: $response=&reply('instuserrules:'.&escape($udom),
1367: $homeserver);
1368: }
1.912 raeburn 1369: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1370: ($response ne 'unknown_cmd') &&
1.912 raeburn 1371: ($response ne 'no_such_host')) {
1372: my ($hashitems,$orderitems) = split(/:/,$response);
1373: my @pairs=split(/\&/,$hashitems);
1374: foreach my $item (@pairs) {
1375: my ($key,$value)=split(/=/,$item,2);
1376: $key = &unescape($key);
1377: next if ($key =~ /^error: 2 /);
1378: $ruleshash{$key}=&thaw_unescape($value);
1379: }
1380: my @esc_order = split(/\&/,$orderitems);
1381: foreach my $item (@esc_order) {
1382: push(@ruleorder,&unescape($item));
1383: }
1384: }
1385: }
1386: }
1387: return (\%ruleshash,\@ruleorder);
1388: }
1389:
1.976 raeburn 1390: # ------------- Get Authentication, Language and User Tools Defaults for Domain
1.943 raeburn 1391:
1392: sub get_domain_defaults {
1393: my ($domain) = @_;
1394: my $cachetime = 60*60*24;
1395: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1396: if (defined($cached)) {
1397: if (ref($result) eq 'HASH') {
1398: return %{$result};
1399: }
1400: }
1401: my %domdefaults;
1402: my %domconfig =
1.989 raeburn 1403: &Apache::lonnet::get_dom('configuration',['defaults','quotas',
1404: 'requestcourses','inststatus'],$domain);
1.943 raeburn 1405: if (ref($domconfig{'defaults'}) eq 'HASH') {
1406: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1407: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1408: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1.982 raeburn 1409: $domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
1.985 raeburn 1410: $domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
1.943 raeburn 1411: } else {
1412: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1413: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1414: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1415: }
1.976 raeburn 1416: if (ref($domconfig{'quotas'}) eq 'HASH') {
1417: if (ref($domconfig{'quotas'}{'defaultquota'}) eq 'HASH') {
1418: $domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
1419: } else {
1420: $domdefaults{'defaultquota'} = $domconfig{'quotas'};
1421: }
1422: my @usertools = ('aboutme','blog','portfolio');
1423: foreach my $item (@usertools) {
1424: if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
1425: $domdefaults{$item} = $domconfig{'quotas'}{$item};
1426: }
1427: }
1428: }
1.985 raeburn 1429: if (ref($domconfig{'requestcourses'}) eq 'HASH') {
1.1006 raeburn 1430: foreach my $item ('official','unofficial','community') {
1.985 raeburn 1431: $domdefaults{$item} = $domconfig{'requestcourses'}{$item};
1432: }
1433: }
1.989 raeburn 1434: if (ref($domconfig{'inststatus'}) eq 'HASH') {
1435: foreach my $item ('inststatustypes','inststatusorder') {
1436: $domdefaults{$item} = $domconfig{'inststatus'}{$item};
1437: }
1438: }
1.943 raeburn 1439: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1440: $cachetime);
1441: return %domdefaults;
1442: }
1443:
1.344 www 1444: # --------------------------------------------------- Assign a key to a student
1445:
1446: sub assign_access_key {
1.364 www 1447: #
1448: # a valid key looks like uname:udom#comments
1449: # comments are being appended
1450: #
1.498 www 1451: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1452: $kdom=
1.620 albertel 1453: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1454: $knum=
1.620 albertel 1455: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1456: $cdom=
1.620 albertel 1457: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1458: $cnum=
1.620 albertel 1459: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1460: $udom=$env{'user.name'} unless (defined($udom));
1461: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1462: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1463: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1464: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1465: # assigned to this person
1466: # - this should not happen,
1.345 www 1467: # unless something went wrong
1468: # the first time around
1469: # ready to assign
1.364 www 1470: $logentry=$1.'; '.$logentry;
1.496 www 1471: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1472: $kdom,$knum) eq 'ok') {
1.345 www 1473: # key now belongs to user
1.346 www 1474: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1475: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1476: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1477: return 'ok';
1478: } else {
1479: return
1480: 'error: Count not permanently assign key, will need to be re-entered later.';
1481: }
1482: } else {
1483: return 'error: Could not assign key, try again later.';
1484: }
1.364 www 1485: } elsif (!$existing{$ckey}) {
1.345 www 1486: # the key does not exist
1487: return 'error: The key does not exist';
1488: } else {
1489: # the key is somebody else's
1490: return 'error: The key is already in use';
1491: }
1.344 www 1492: }
1493:
1.364 www 1494: # ------------------------------------------ put an additional comment on a key
1495:
1496: sub comment_access_key {
1497: #
1498: # a valid key looks like uname:udom#comments
1499: # comments are being appended
1500: #
1501: my ($ckey,$cdom,$cnum,$logentry)=@_;
1502: $cdom=
1.620 albertel 1503: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1504: $cnum=
1.620 albertel 1505: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1506: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1507: if ($existing{$ckey}) {
1508: $existing{$ckey}.='; '.$logentry;
1509: # ready to assign
1.367 www 1510: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1511: $cdom,$cnum) eq 'ok') {
1512: return 'ok';
1513: } else {
1514: return 'error: Count not store comment.';
1515: }
1516: } else {
1517: # the key does not exist
1518: return 'error: The key does not exist';
1519: }
1520: }
1521:
1.344 www 1522: # ------------------------------------------------------ Generate a set of keys
1523:
1524: sub generate_access_keys {
1.364 www 1525: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1526: $cdom=
1.620 albertel 1527: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1528: $cnum=
1.620 albertel 1529: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1530: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1531: unless (($cdom) && ($cnum)) { return 0; }
1532: if ($number>10000) { return 0; }
1533: sleep(2); # make sure don't get same seed twice
1534: srand(time()^($$+($$<<15))); # from "Programming Perl"
1535: my $total=0;
1536: for (my $i=1;$i<=$number;$i++) {
1537: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1538: sprintf("%lx",int(100000*rand)).'-'.
1539: sprintf("%lx",int(100000*rand));
1540: $newkey=~s/1/g/g; # folks mix up 1 and l
1541: $newkey=~s/0/h/g; # and also 0 and O
1542: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1543: if ($existing{$newkey}) {
1544: $i--;
1545: } else {
1.364 www 1546: if (&put('accesskeys',
1547: { $newkey => '# generated '.localtime().
1.620 albertel 1548: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1549: '; '.$logentry },
1550: $cdom,$cnum) eq 'ok') {
1.344 www 1551: $total++;
1552: }
1553: }
1554: }
1.620 albertel 1555: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1556: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1557: return $total;
1558: }
1559:
1560: # ------------------------------------------------------- Validate an accesskey
1561:
1562: sub validate_access_key {
1563: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1564: $cdom=
1.620 albertel 1565: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1566: $cnum=
1.620 albertel 1567: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1568: $udom=$env{'user.domain'} unless (defined($udom));
1569: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1570: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1571: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1572: }
1573:
1574: # ------------------------------------- Find the section of student in a course
1.652 albertel 1575: sub devalidate_getsection_cache {
1576: my ($udom,$unam,$courseid)=@_;
1577: my $hashid="$udom:$unam:$courseid";
1578: &devalidate_cache_new('getsection',$hashid);
1579: }
1.298 matthew 1580:
1.815 albertel 1581: sub courseid_to_courseurl {
1582: my ($courseid) = @_;
1583: #already url style courseid
1584: return $courseid if ($courseid =~ m{^/});
1585:
1586: if (exists($env{'course.'.$courseid.'.num'})) {
1587: my $cnum = $env{'course.'.$courseid.'.num'};
1588: my $cdom = $env{'course.'.$courseid.'.domain'};
1589: return "/$cdom/$cnum";
1590: }
1591:
1592: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1593: if (exists($courseinfo{'num'})) {
1594: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1595: }
1596:
1597: return undef;
1598: }
1599:
1.298 matthew 1600: sub getsection {
1601: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1602: my $cachetime=1800;
1.551 albertel 1603:
1604: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1605: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1606: if (defined($cached)) { return $result; }
1607:
1.298 matthew 1608: my %Pending;
1609: my %Expired;
1610: #
1611: # Each role can either have not started yet (pending), be active,
1612: # or have expired.
1613: #
1614: # If there is an active role, we are done.
1615: #
1616: # If there is more than one role which has not started yet,
1617: # choose the one which will start sooner
1618: # If there is one role which has not started yet, return it.
1619: #
1620: # If there is more than one expired role, choose the one which ended last.
1621: # If there is a role which has expired, return it.
1622: #
1.815 albertel 1623: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1624: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1625: foreach my $key (keys(%roleshash)) {
1.479 albertel 1626: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1627: my $section=$1;
1628: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1629: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1630: my $now=time;
1.548 albertel 1631: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1632: $Expired{$end}=$section;
1633: next;
1634: }
1.548 albertel 1635: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1636: $Pending{$start}=$section;
1637: next;
1638: }
1.599 albertel 1639: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1640: }
1641: #
1642: # Presumedly there will be few matching roles from the above
1643: # loop and the sorting time will be negligible.
1644: if (scalar(keys(%Pending))) {
1645: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1646: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1647: }
1648: if (scalar(keys(%Expired))) {
1649: my @sorted = sort {$a <=> $b} keys(%Expired);
1650: my $time = pop(@sorted);
1.599 albertel 1651: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1652: }
1.599 albertel 1653: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1654: }
1.70 www 1655:
1.599 albertel 1656: sub save_cache {
1657: &purge_remembered();
1.722 albertel 1658: #&Apache::loncommon::validate_page();
1.620 albertel 1659: undef(%env);
1.780 albertel 1660: undef($env_loaded);
1.599 albertel 1661: }
1.452 albertel 1662:
1.599 albertel 1663: my $to_remember=-1;
1664: my %remembered;
1665: my %accessed;
1666: my $kicks=0;
1667: my $hits=0;
1.849 albertel 1668: sub make_key {
1669: my ($name,$id) = @_;
1.872 albertel 1670: if (length($id) > 65
1671: && length(&escape($id)) > 200) {
1672: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1673: }
1.849 albertel 1674: return &escape($name.':'.$id);
1675: }
1676:
1.599 albertel 1677: sub devalidate_cache_new {
1678: my ($name,$id,$debug) = @_;
1679: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1680: $id=&make_key($name,$id);
1.599 albertel 1681: $memcache->delete($id);
1682: delete($remembered{$id});
1683: delete($accessed{$id});
1684: }
1685:
1686: sub is_cached_new {
1687: my ($name,$id,$debug) = @_;
1.849 albertel 1688: $id=&make_key($name,$id);
1.599 albertel 1689: if (exists($remembered{$id})) {
1690: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1691: $accessed{$id}=[&gettimeofday()];
1692: $hits++;
1693: return ($remembered{$id},1);
1694: }
1695: my $value = $memcache->get($id);
1696: if (!(defined($value))) {
1697: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1698: return (undef,undef);
1.416 albertel 1699: }
1.599 albertel 1700: if ($value eq '__undef__') {
1701: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1702: $value=undef;
1703: }
1704: &make_room($id,$value,$debug);
1705: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1706: return ($value,1);
1707: }
1708:
1709: sub do_cache_new {
1710: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1711: $id=&make_key($name,$id);
1.599 albertel 1712: my $setvalue=$value;
1713: if (!defined($setvalue)) {
1714: $setvalue='__undef__';
1715: }
1.623 albertel 1716: if (!defined($time) ) {
1717: $time=600;
1718: }
1.599 albertel 1719: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1720: my $result = $memcache->set($id,$setvalue,$time);
1721: if (! $result) {
1.872 albertel 1722: &logthis("caching of id -> $id failed");
1.910 albertel 1723: $memcache->disconnect_all();
1.872 albertel 1724: }
1.600 albertel 1725: # need to make a copy of $value
1.919 albertel 1726: &make_room($id,$value,$debug);
1.599 albertel 1727: return $value;
1728: }
1729:
1730: sub make_room {
1731: my ($id,$value,$debug)=@_;
1.919 albertel 1732:
1733: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1734: : $value;
1.599 albertel 1735: if ($to_remember<0) { return; }
1736: $accessed{$id}=[&gettimeofday()];
1737: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1738: my $to_kick;
1739: my $max_time=0;
1740: foreach my $other (keys(%accessed)) {
1741: if (&tv_interval($accessed{$other}) > $max_time) {
1742: $to_kick=$other;
1743: $max_time=&tv_interval($accessed{$other});
1744: }
1745: }
1746: delete($remembered{$to_kick});
1747: delete($accessed{$to_kick});
1748: $kicks++;
1749: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1750: return;
1751: }
1752:
1.599 albertel 1753: sub purge_remembered {
1.604 albertel 1754: #&logthis("Tossing ".scalar(keys(%remembered)));
1755: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1756: undef(%remembered);
1757: undef(%accessed);
1.428 albertel 1758: }
1.70 www 1759: # ------------------------------------- Read an entry from a user's environment
1760:
1761: sub userenvironment {
1762: my ($udom,$unam,@what)=@_;
1.976 raeburn 1763: my $items;
1764: foreach my $item (@what) {
1765: $items.=&escape($item).'&';
1766: }
1767: $items=~s/\&$//;
1.70 www 1768: my %returnhash=();
1.1009 raeburn 1769: my $uhome = &homeserver($unam,$udom);
1770: unless ($uhome eq 'no_host') {
1771: my @answer=split(/\&/,
1772: &reply('get:'.$udom.':'.$unam.':environment:'.$items,$uhome));
1773: my $i;
1774: for ($i=0;$i<=$#what;$i++) {
1775: $returnhash{$what[$i]}=&unescape($answer[$i]);
1776: }
1.70 www 1777: }
1778: return %returnhash;
1.1 albertel 1779: }
1780:
1.617 albertel 1781: # ---------------------------------------------------------- Get a studentphoto
1782: sub studentphoto {
1783: my ($udom,$unam,$ext) = @_;
1784: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1785: if (defined($env{'request.course.id'})) {
1.708 raeburn 1786: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1787: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1788: return(&retrievestudentphoto($udom,$unam,$ext));
1789: } else {
1790: my ($result,$perm_reqd)=
1.707 albertel 1791: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1792: if ($result eq 'ok') {
1793: if (!($perm_reqd eq 'yes')) {
1794: return(&retrievestudentphoto($udom,$unam,$ext));
1795: }
1796: }
1797: }
1798: }
1799: } else {
1800: my ($result,$perm_reqd) =
1.707 albertel 1801: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1802: if ($result eq 'ok') {
1803: if (!($perm_reqd eq 'yes')) {
1804: return(&retrievestudentphoto($udom,$unam,$ext));
1805: }
1806: }
1807: }
1808: return '/adm/lonKaputt/lonlogo_broken.gif';
1809: }
1810:
1811: sub retrievestudentphoto {
1812: my ($udom,$unam,$ext,$type) = @_;
1813: my $home=&Apache::lonnet::homeserver($unam,$udom);
1814: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1815: if ($ret eq 'ok') {
1816: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1817: if ($type eq 'thumbnail') {
1818: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1819: }
1820: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1821: return $tokenurl;
1822: } else {
1823: if ($type eq 'thumbnail') {
1824: return '/adm/lonKaputt/genericstudent_tn.gif';
1825: } else {
1826: return '/adm/lonKaputt/lonlogo_broken.gif';
1827: }
1.617 albertel 1828: }
1829: }
1830:
1.263 www 1831: # -------------------------------------------------------------------- New chat
1832:
1833: sub chatsend {
1.724 raeburn 1834: my ($newentry,$anon,$group)=@_;
1.620 albertel 1835: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1836: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1837: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1838: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1839: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1840: &escape($newentry)).':'.$group,$chome);
1.292 www 1841: }
1842:
1843: # ------------------------------------------ Find current version of a resource
1844:
1845: sub getversion {
1846: my $fname=&clutter(shift);
1847: unless ($fname=~/^\/res\//) { return -1; }
1848: return ¤tversion(&filelocation('',$fname));
1849: }
1850:
1851: sub currentversion {
1852: my $fname=shift;
1.599 albertel 1853: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1854: if (defined($cached)) { return $result; }
1.292 www 1855: my $author=$fname;
1856: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1857: my ($udom,$uname)=split(/\//,$author);
1858: my $home=homeserver($uname,$udom);
1859: if ($home eq 'no_host') {
1860: return -1;
1861: }
1862: my $answer=reply("currentversion:$fname",$home);
1863: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1864: return -1;
1865: }
1.599 albertel 1866: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1867: }
1868:
1.1 albertel 1869: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1870:
1.1 albertel 1871: sub subscribe {
1872: my $fname=shift;
1.761 raeburn 1873: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1874: $fname=~s/[\n\r]//g;
1.1 albertel 1875: my $author=$fname;
1876: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1877: my ($udom,$uname)=split(/\//,$author);
1878: my $home=homeserver($uname,$udom);
1.335 albertel 1879: if ($home eq 'no_host') {
1880: return 'not_found';
1.1 albertel 1881: }
1882: my $answer=reply("sub:$fname",$home);
1.64 www 1883: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1884: $answer.=' by '.$home;
1885: }
1.1 albertel 1886: return $answer;
1887: }
1888:
1.8 www 1889: # -------------------------------------------------------------- Replicate file
1890:
1891: sub repcopy {
1892: my $filename=shift;
1.23 www 1893: $filename=~s/\/+/\//g;
1.607 raeburn 1894: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1895: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1896: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1897: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1898: return &repcopy_userfile($filename);
1899: }
1.532 albertel 1900: $filename=~s/[\n\r]//g;
1.8 www 1901: my $transname="$filename.in.transfer";
1.828 www 1902: # FIXME: this should flock
1.607 raeburn 1903: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1904: my $remoteurl=subscribe($filename);
1.64 www 1905: if ($remoteurl =~ /^con_lost by/) {
1906: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1907: return 'unavailable';
1.8 www 1908: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1909: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1910: return 'not_found';
1.64 www 1911: } elsif ($remoteurl =~ /^rejected by/) {
1912: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1913: return 'forbidden';
1.20 www 1914: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1915: return 'ok';
1.8 www 1916: } else {
1.290 www 1917: my $author=$filename;
1918: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1919: my ($udom,$uname)=split(/\//,$author);
1920: my $home=homeserver($uname,$udom);
1921: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1922: my @parts=split(/\//,$filename);
1923: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1924: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1925: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1926: return 'bad_request';
1.8 www 1927: }
1928: my $count;
1929: for ($count=5;$count<$#parts;$count++) {
1930: $path.="/$parts[$count]";
1931: if ((-e $path)!=1) {
1932: mkdir($path,0777);
1933: }
1934: }
1935: my $ua=new LWP::UserAgent;
1936: my $request=new HTTP::Request('GET',"$remoteurl");
1937: my $response=$ua->request($request,$transname);
1938: if ($response->is_error()) {
1939: unlink($transname);
1940: my $message=$response->status_line;
1.672 albertel 1941: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1942: ." LWP get: $message: $filename</font>");
1.607 raeburn 1943: return 'unavailable';
1.8 www 1944: } else {
1.16 www 1945: if ($remoteurl!~/\.meta$/) {
1946: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1947: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1948: if ($mresponse->is_error()) {
1949: unlink($filename.'.meta');
1950: &logthis(
1.672 albertel 1951: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1952: }
1953: }
1.8 www 1954: rename($transname,$filename);
1.607 raeburn 1955: return 'ok';
1.8 www 1956: }
1.290 www 1957: }
1.8 www 1958: }
1.330 www 1959: }
1960:
1961: # ------------------------------------------------ Get server side include body
1962: sub ssi_body {
1.381 albertel 1963: my ($filelink,%form)=@_;
1.606 matthew 1964: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1965: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1966: }
1.953 www 1967: my $output='';
1968: my $response;
1.980 raeburn 1969: if ($filelink=~/^https?\:/) {
1.954 raeburn 1970: ($output,$response)=&externalssi($filelink);
1.953 www 1971: } else {
1.1004 droeschl 1972: $filelink .= $filelink=~/\?/ ? '&' : '?';
1973: $filelink .= 'inhibitmenu=yes';
1.953 www 1974: ($output,$response)=&ssi($filelink,%form);
1975: }
1.778 albertel 1976: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1977: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 1978: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 1979: if (wantarray) {
1980: return ($output, $response);
1981: } else {
1982: return $output;
1983: }
1.8 www 1984: }
1985:
1.15 www 1986: # --------------------------------------------------------- Server Side Include
1987:
1.782 albertel 1988: sub absolute_url {
1989: my ($host_name) = @_;
1990: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1991: if ($host_name eq '') {
1992: $host_name = $ENV{'SERVER_NAME'};
1993: }
1994: return $protocol.$host_name;
1995: }
1996:
1.942 foxr 1997: #
1998: # Server side include.
1999: # Parameters:
2000: # fn Possibly encrypted resource name/id.
2001: # form Hash that describes how the rendering should be done
2002: # and other things.
1.944 foxr 2003: # Returns:
1.950 raeburn 2004: # Scalar context: The content of the response.
2005: # Array context: 2 element list of the content and the full response object.
1.942 foxr 2006: #
1.15 www 2007: sub ssi {
2008:
1.944 foxr 2009: my ($fn,%form)=@_;
1.15 www 2010: my $ua=new LWP::UserAgent;
1.23 www 2011: my $request;
1.711 albertel 2012:
2013: $form{'no_update_last_known'}=1;
1.895 albertel 2014: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 2015: if (%form) {
1.782 albertel 2016: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.1000 raeburn 2017: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
1.23 www 2018: } else {
1.782 albertel 2019: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 2020: }
2021:
1.15 www 2022: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
2023: my $response=$ua->request($request);
2024:
1.944 foxr 2025: if (wantarray) {
2026: return ($response->content, $response);
2027: } else {
2028: return $response->content;
1.942 foxr 2029: }
1.324 www 2030: }
2031:
2032: sub externalssi {
2033: my ($url)=@_;
2034: my $ua=new LWP::UserAgent;
2035: my $request=new HTTP::Request('GET',$url);
2036: my $response=$ua->request($request);
1.954 raeburn 2037: if (wantarray) {
2038: return ($response->content, $response);
2039: } else {
2040: return $response->content;
2041: }
1.15 www 2042: }
1.254 www 2043:
1.492 albertel 2044: # -------------------------------- Allow a /uploaded/ URI to be vouched for
2045:
2046: sub allowuploaded {
2047: my ($srcurl,$url)=@_;
2048: $url=&clutter(&declutter($url));
2049: my $dir=$url;
2050: $dir=~s/\/[^\/]+$//;
2051: my %httpref=();
2052: my $httpurl=&hreflocation('',$url);
2053: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 2054: &Apache::lonnet::appenv(\%httpref);
1.254 www 2055: }
1.477 raeburn 2056:
1.478 albertel 2057: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 2058: # input: action, courseID, current domain, intended
1.637 raeburn 2059: # path to file, source of file, instruction to parse file for objects,
2060: # ref to hash for embedded objects,
2061: # ref to hash for codebase of java objects.
2062: #
1.485 raeburn 2063: # output: url to file (if action was uploaddoc),
2064: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 2065: #
1.478 albertel 2066: # Allows directory structure to be used within lonUsers/../userfiles/ for a
2067: # course.
1.477 raeburn 2068: #
1.478 albertel 2069: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2070: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
2071: # course's home server.
1.477 raeburn 2072: #
1.478 albertel 2073: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
2074: # be copied from $source (current location) to
2075: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2076: # and will then be copied to
2077: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
2078: # course's home server.
1.485 raeburn 2079: #
1.481 raeburn 2080: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 2081: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 2082: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
2083: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
2084: # in course's home server.
1.637 raeburn 2085: #
1.477 raeburn 2086:
2087: sub process_coursefile {
1.638 albertel 2088: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 2089: my $fetchresult;
1.638 albertel 2090: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 2091: if ($action eq 'propagate') {
1.638 albertel 2092: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
2093: $home);
1.481 raeburn 2094: } else {
1.477 raeburn 2095: my $fpath = '';
2096: my $fname = $file;
1.478 albertel 2097: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 2098: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 2099: my $filepath = &build_filepath($fpath);
1.481 raeburn 2100: if ($action eq 'copy') {
2101: if ($source eq '') {
2102: $fetchresult = 'no source file';
2103: return $fetchresult;
2104: } else {
2105: my $destination = $filepath.'/'.$fname;
2106: rename($source,$destination);
2107: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2108: $home);
1.481 raeburn 2109: }
2110: } elsif ($action eq 'uploaddoc') {
2111: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 2112: print $fh $env{'form.'.$source};
1.481 raeburn 2113: close($fh);
1.637 raeburn 2114: if ($parser eq 'parse') {
1.961 raeburn 2115: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
1.637 raeburn 2116: unless ($parse_result eq 'ok') {
2117: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
2118: }
2119: }
1.477 raeburn 2120: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2121: $home);
1.481 raeburn 2122: if ($fetchresult eq 'ok') {
2123: return '/uploaded/'.$fpath.'/'.$fname;
2124: } else {
2125: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2126: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 2127: return '/adm/notfound.html';
2128: }
1.477 raeburn 2129: }
2130: }
1.485 raeburn 2131: unless ( $fetchresult eq 'ok') {
1.477 raeburn 2132: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 2133: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 2134: }
2135: return $fetchresult;
2136: }
2137:
1.637 raeburn 2138: sub build_filepath {
2139: my ($fpath) = @_;
2140: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
2141: unless ($fpath eq '') {
2142: my @parts=split('/',$fpath);
2143: foreach my $part (@parts) {
2144: $filepath.= '/'.$part;
2145: if ((-e $filepath)!=1) {
2146: mkdir($filepath,0777);
2147: }
2148: }
2149: }
2150: return $filepath;
2151: }
2152:
2153: sub store_edited_file {
1.638 albertel 2154: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 2155: my $file = $primary_url;
2156: $file =~ s#^/uploaded/$docudom/$docuname/##;
2157: my $fpath = '';
2158: my $fname = $file;
2159: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
2160: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
2161: my $filepath = &build_filepath($fpath);
2162: open(my $fh,'>'.$filepath.'/'.$fname);
2163: print $fh $content;
2164: close($fh);
1.638 albertel 2165: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 2166: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 2167: $home);
1.637 raeburn 2168: if ($$fetchresult eq 'ok') {
2169: return '/uploaded/'.$fpath.'/'.$fname;
2170: } else {
1.638 albertel 2171: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
2172: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 2173: return '/adm/notfound.html';
2174: }
2175: }
2176:
1.531 albertel 2177: sub clean_filename {
1.831 albertel 2178: my ($fname,$args)=@_;
1.315 www 2179: # Replace Windows backslashes by forward slashes
1.257 www 2180: $fname=~s/\\/\//g;
1.831 albertel 2181: if (!$args->{'keep_path'}) {
2182: # Get rid of everything but the actual filename
2183: $fname=~s/^.*\/([^\/]+)$/$1/;
2184: }
1.315 www 2185: # Replace spaces by underscores
2186: $fname=~s/\s+/\_/g;
2187: # Replace all other weird characters by nothing
1.831 albertel 2188: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 2189: # Replace all .\d. sequences with _\d. so they no longer look like version
2190: # numbers
2191: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 2192: return $fname;
2193: }
1.984 neumanie 2194: #This Function check if a Image max 400px width and height 500px. If not then scale the image down
2195: sub resizeImage {
2196: my($img_url) = @_;
2197: my $ima = Image::Magick->new;
2198: $ima->Read($img_url);
2199: if($ima->Get('width') > 400)
2200: {
2201: my $factor = $ima->Get('width')/400;
2202: $ima->Scale( width=>400, height=>$ima->Get('height')/$factor );
2203: }
2204: if($ima->Get('height') > 500)
2205: {
2206: my $factor = $ima->Get('height')/500;
2207: $ima->Scale( width=>$ima->Get('width')/$factor, height=>500);
2208: }
2209:
2210: $ima->Write($img_url);
2211: }
1.531 albertel 2212:
1.977 amueller 2213: #Wrapper function for userphotoupload
2214: sub userphotoupload
2215: {
2216: my($formname,$subdir) = @_;
2217: $upload_photo_form = 1;
2218: return &userfileupload($formname,undef,$subdir);
2219: }
2220:
1.608 albertel 2221: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 2222: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 2223: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 2224: # $coursedoc - if true up to the current course
2225: # if false
2226: # $subdir - directory in userfile to store the file into
1.858 raeburn 2227: # $parser - instruction to parse file for objects ($parser = parse)
2228: # $allfiles - reference to hash for embedded objects
2229: # $codebase - reference to hash for codebase of java objects
2230: # $desuname - username for permanent storage of uploaded file
2231: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 2232: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
2233: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 2234: #
1.686 albertel 2235: # output: url of file in userspace, or error: <message>
2236: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 2237:
2238:
1.531 albertel 2239: sub userfileupload {
1.860 raeburn 2240: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
2241: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 2242: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 2243: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 2244: $fname=&clean_filename($fname);
1.315 www 2245: # See if there is anything left
1.257 www 2246: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 2247: chop($env{'form.'.$formname});
1.523 raeburn 2248: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
2249: my $now = time;
2250: my $filepath = 'tmp/helprequests/'.$now;
2251: my @parts=split(/\//,$filepath);
2252: my $fullpath = $perlvar{'lonDaemons'};
2253: for (my $i=0;$i<@parts;$i++) {
2254: $fullpath .= '/'.$parts[$i];
2255: if ((-e $fullpath)!=1) {
2256: mkdir($fullpath,0777);
2257: }
2258: }
2259: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 2260: print $fh $env{'form.'.$formname};
1.523 raeburn 2261: close($fh);
1.741 raeburn 2262: return $fullpath.'/'.$fname;
2263: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
2264: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2265: '_'.$env{'user.domain'}.'/pending';
2266: my @parts=split(/\//,$filepath);
2267: my $fullpath = $perlvar{'lonDaemons'};
2268: for (my $i=0;$i<@parts;$i++) {
2269: $fullpath .= '/'.$parts[$i];
2270: if ((-e $fullpath)!=1) {
2271: mkdir($fullpath,0777);
2272: }
2273: }
2274: open(my $fh,'>'.$fullpath.'/'.$fname);
2275: print $fh $env{'form.'.$formname};
2276: close($fh);
2277: return $fullpath.'/'.$fname;
1.523 raeburn 2278: }
1.995 raeburn 2279: if ($subdir eq 'scantron') {
2280: $fname = 'scantron_orig_'.$fname;
2281: } else {
1.258 www 2282: # Create the directory if not present
1.995 raeburn 2283: $fname="$subdir/$fname";
2284: }
1.259 www 2285: if ($coursedoc) {
1.638 albertel 2286: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2287: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2288: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2289: return &finishuserfileupload($docuname,$docudom,
2290: $formname,$fname,$parser,$allfiles,
1.860 raeburn 2291: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 2292: } else {
1.620 albertel 2293: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2294: return &process_coursefile('uploaddoc',$docuname,$docudom,
2295: $fname,$formname,$parser,
2296: $allfiles,$codebase);
1.481 raeburn 2297: }
1.719 banghart 2298: } elsif (defined($destuname)) {
2299: my $docuname=$destuname;
2300: my $docudom=$destudom;
1.860 raeburn 2301: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2302: $parser,$allfiles,$codebase,
2303: $thumbwidth,$thumbheight);
1.719 banghart 2304:
1.259 www 2305: } else {
1.638 albertel 2306: my $docuname=$env{'user.name'};
2307: my $docudom=$env{'user.domain'};
1.714 raeburn 2308: if (exists($env{'form.group'})) {
2309: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2310: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2311: }
1.860 raeburn 2312: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2313: $parser,$allfiles,$codebase,
2314: $thumbwidth,$thumbheight);
1.259 www 2315: }
1.271 www 2316: }
2317:
2318: sub finishuserfileupload {
1.860 raeburn 2319: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
2320: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 2321: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2322: my $filepath=$perlvar{'lonDocRoot'};
1.984 neumanie 2323:
1.860 raeburn 2324: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2325: $file=$fname;
2326: if ($fname=~m|/|) {
2327: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2328: $path.=$fnamepath.'/';
2329: }
1.259 www 2330: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2331: my $count;
2332: for ($count=4;$count<=$#parts;$count++) {
2333: $filepath.="/$parts[$count]";
2334: if ((-e $filepath)!=1) {
2335: mkdir($filepath,0777);
2336: }
2337: }
1.984 neumanie 2338:
1.258 www 2339: # Save the file
2340: {
1.701 albertel 2341: if (!open(FH,'>'.$filepath.'/'.$file)) {
2342: &logthis('Failed to create '.$filepath.'/'.$file);
2343: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2344: return '/adm/notfound.html';
2345: }
2346: if (!print FH ($env{'form.'.$formname})) {
2347: &logthis('Failed to write to '.$filepath.'/'.$file);
2348: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2349: return '/adm/notfound.html';
2350: }
1.570 albertel 2351: close(FH);
1.977 amueller 2352: if($upload_photo_form==1)
2353: {
1.984 neumanie 2354: resizeImage($filepath.'/'.$file);
1.977 amueller 2355: $upload_photo_form = 0;
2356: }
1.258 www 2357: }
1.637 raeburn 2358: if ($parser eq 'parse') {
1.961 raeburn 2359: my $parse_result = &extract_embedded_items($filepath.'/'.$file,$allfiles,
1.638 albertel 2360: $codebase);
1.637 raeburn 2361: unless ($parse_result eq 'ok') {
1.638 albertel 2362: &logthis('Failed to parse '.$filepath.$file.
2363: ' for embedded media: '.$parse_result);
1.637 raeburn 2364: }
2365: }
1.860 raeburn 2366: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2367: my $input = $filepath.'/'.$file;
2368: my $output = $filepath.'/'.'tn-'.$file;
2369: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2370: system("convert -sample $thumbsize $input $output");
2371: if (-e $filepath.'/'.'tn-'.$file) {
2372: $fetchthumb = 1;
2373: }
2374: }
1.858 raeburn 2375:
1.259 www 2376: # Notify homeserver to grep it
2377: #
1.984 neumanie 2378: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2379: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2380: if ($fetchresult eq 'ok') {
1.860 raeburn 2381: if ($fetchthumb) {
2382: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2383: if ($thumbresult ne 'ok') {
2384: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2385: $docuhome.': '.$thumbresult);
2386: }
2387: }
1.259 www 2388: #
1.258 www 2389: # Return the URL to it
1.494 albertel 2390: return '/uploaded/'.$path.$file;
1.263 www 2391: } else {
1.494 albertel 2392: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2393: ': '.$fetchresult);
1.263 www 2394: return '/adm/notfound.html';
1.858 raeburn 2395: }
1.493 albertel 2396: }
2397:
1.637 raeburn 2398: sub extract_embedded_items {
1.961 raeburn 2399: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2400: my @state = ();
2401: my %javafiles = (
2402: codebase => '',
2403: code => '',
2404: archive => ''
2405: );
2406: my %mediafiles = (
2407: src => '',
2408: movie => '',
2409: );
1.648 raeburn 2410: my $p;
2411: if ($content) {
2412: $p = HTML::LCParser->new($content);
2413: } else {
1.961 raeburn 2414: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2415: }
1.641 albertel 2416: while (my $t=$p->get_token()) {
1.640 albertel 2417: if ($t->[0] eq 'S') {
2418: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2419: push(@state, $tagname);
1.648 raeburn 2420: if (lc($tagname) eq 'allow') {
2421: &add_filetype($allfiles,$attr->{'src'},'src');
2422: }
1.640 albertel 2423: if (lc($tagname) eq 'img') {
2424: &add_filetype($allfiles,$attr->{'src'},'src');
2425: }
1.886 albertel 2426: if (lc($tagname) eq 'a') {
2427: &add_filetype($allfiles,$attr->{'href'},'href');
2428: }
1.645 raeburn 2429: if (lc($tagname) eq 'script') {
2430: if ($attr->{'archive'} =~ /\.jar$/i) {
2431: &add_filetype($allfiles,$attr->{'archive'},'archive');
2432: } else {
2433: &add_filetype($allfiles,$attr->{'src'},'src');
2434: }
2435: }
2436: if (lc($tagname) eq 'link') {
2437: if (lc($attr->{'rel'}) eq 'stylesheet') {
2438: &add_filetype($allfiles,$attr->{'href'},'href');
2439: }
2440: }
1.640 albertel 2441: if (lc($tagname) eq 'object' ||
2442: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2443: foreach my $item (keys(%javafiles)) {
2444: $javafiles{$item} = '';
2445: }
2446: }
2447: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2448: my $name = lc($attr->{'name'});
2449: foreach my $item (keys(%javafiles)) {
2450: if ($name eq $item) {
2451: $javafiles{$item} = $attr->{'value'};
2452: last;
2453: }
2454: }
2455: foreach my $item (keys(%mediafiles)) {
2456: if ($name eq $item) {
2457: &add_filetype($allfiles, $attr->{'value'}, 'value');
2458: last;
2459: }
2460: }
2461: }
2462: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2463: foreach my $item (keys(%javafiles)) {
2464: if ($attr->{$item}) {
2465: $javafiles{$item} = $attr->{$item};
2466: last;
2467: }
2468: }
2469: foreach my $item (keys(%mediafiles)) {
2470: if ($attr->{$item}) {
2471: &add_filetype($allfiles,$attr->{$item},$item);
2472: last;
2473: }
2474: }
2475: }
2476: } elsif ($t->[0] eq 'E') {
2477: my ($tagname) = ($t->[1]);
2478: if ($javafiles{'codebase'} ne '') {
2479: $javafiles{'codebase'} .= '/';
2480: }
2481: if (lc($tagname) eq 'applet' ||
2482: lc($tagname) eq 'object' ||
2483: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2484: ) {
2485: foreach my $item (keys(%javafiles)) {
2486: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2487: my $file=$javafiles{'codebase'}.$javafiles{$item};
2488: &add_filetype($allfiles,$file,$item);
2489: }
2490: }
2491: }
2492: pop @state;
2493: }
2494: }
1.637 raeburn 2495: return 'ok';
2496: }
2497:
1.639 albertel 2498: sub add_filetype {
2499: my ($allfiles,$file,$type)=@_;
2500: if (exists($allfiles->{$file})) {
2501: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2502: push(@{$allfiles->{$file}}, &escape($type));
2503: }
2504: } else {
2505: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2506: }
2507: }
2508:
1.493 albertel 2509: sub removeuploadedurl {
1.984 neumanie 2510: my ($url)=@_;
2511: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2512: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2513: }
2514:
2515: sub removeuserfile {
2516: my ($docuname,$docudom,$fname)=@_;
1.984 neumanie 2517: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2518: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.984 neumanie 2519: if ($result eq 'ok') {
1.798 raeburn 2520: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2521: my $metafile = $fname.'.meta';
2522: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2523: my $url = "/uploaded/$docudom/$docuname/$fname";
1.984 neumanie 2524: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2525: my $sqlresult =
1.823 albertel 2526: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2527: 'portfolio_metadata',$group,
2528: 'delete');
1.798 raeburn 2529: }
2530: }
2531: return $result;
1.257 www 2532: }
1.15 www 2533:
1.530 albertel 2534: sub mkdiruserfile {
2535: my ($docuname,$docudom,$dir)=@_;
2536: my $home=&homeserver($docuname,$docudom);
2537: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2538: }
2539:
1.531 albertel 2540: sub renameuserfile {
2541: my ($docuname,$docudom,$old,$new)=@_;
2542: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2543: my $result = &reply("renameuserfile:$docudom:$docuname:".
2544: &escape("$old").':'.&escape("$new"),$home);
2545: if ($result eq 'ok') {
2546: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2547: my $oldmeta = $old.'.meta';
2548: my $newmeta = $new.'.meta';
2549: my $metaresult =
2550: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2551: my $url = "/uploaded/$docudom/$docuname/$old";
2552: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2553: my $sqlresult =
1.823 albertel 2554: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2555: 'portfolio_metadata',$group,
2556: 'delete');
1.798 raeburn 2557: }
2558: }
2559: return $result;
1.531 albertel 2560: }
2561:
1.14 www 2562: # ------------------------------------------------------------------------- Log
2563:
2564: sub log {
2565: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2566: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2567: }
2568:
2569: # ------------------------------------------------------------------ Course Log
1.352 www 2570: #
2571: # This routine flushes several buffers of non-mission-critical nature
2572: #
1.157 www 2573:
2574: sub flushcourselogs {
1.352 www 2575: &logthis('Flushing log buffers');
2576: #
2577: # course logs
2578: # This is a log of all transactions in a course, which can be used
2579: # for data mining purposes
2580: #
2581: # It also collects the courseid database, which lists last transaction
2582: # times and course titles for all courseids
2583: #
2584: my %courseidbuffer=();
1.921 raeburn 2585: foreach my $crsid (keys(%courselogs)) {
1.352 www 2586: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2587: &escape($courselogs{$crsid}),
2588: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2589: delete $courselogs{$crsid};
2590: } else {
2591: &logthis('Failed to flush log buffer for '.$crsid);
2592: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2593: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2594: " exceeded maximum size, deleting.</font>");
2595: delete $courselogs{$crsid};
2596: }
1.352 www 2597: }
1.920 raeburn 2598: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2599: 'description' => $coursedescrbuf{$crsid},
2600: 'inst_code' => $courseinstcodebuf{$crsid},
2601: 'type' => $coursetypebuf{$crsid},
2602: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2603: };
1.191 harris41 2604: }
1.352 www 2605: #
2606: # Write course id database (reverse lookup) to homeserver of courses
2607: # Is used in pickcourse
2608: #
1.840 albertel 2609: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2610: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2611: $courseidbuffer{$crs_home},
2612: $crs_home,'timeonly');
1.352 www 2613: }
2614: #
2615: # File accesses
2616: # Writes to the dynamic metadata of resources to get hit counts, etc.
2617: #
1.449 matthew 2618: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2619: if ($entry =~ /___count$/) {
2620: my ($dom,$name);
1.807 albertel 2621: ($dom,$name,undef)=
1.811 albertel 2622: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2623: if (! defined($dom) || $dom eq '' ||
2624: ! defined($name) || $name eq '') {
1.620 albertel 2625: my $cid = $env{'request.course.id'};
2626: $dom = $env{'request.'.$cid.'.domain'};
2627: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2628: }
1.450 matthew 2629: my $value = $accesshash{$entry};
2630: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2631: my %temphash=($url => $value);
1.449 matthew 2632: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2633: if ($result eq 'ok') {
2634: delete $accesshash{$entry};
2635: } elsif ($result eq 'unknown_cmd') {
2636: # Target server has old code running on it.
1.450 matthew 2637: my %temphash=($entry => $value);
1.449 matthew 2638: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2639: delete $accesshash{$entry};
2640: }
2641: }
2642: } else {
1.811 albertel 2643: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2644: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2645: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2646: delete $accesshash{$entry};
2647: }
1.185 www 2648: }
1.191 harris41 2649: }
1.352 www 2650: #
2651: # Roles
2652: # Reverse lookup of user roles for course faculty/staff and co-authorship
2653: #
1.800 albertel 2654: foreach my $entry (keys(%userrolehash)) {
1.351 www 2655: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2656: split(/\:/,$entry);
2657: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2658: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2659: $rudom,$runame) eq 'ok') {
2660: delete $userrolehash{$entry};
2661: }
2662: }
1.662 raeburn 2663: #
2664: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2665: #
2666: my %domrolebuffer = ();
1.1000 raeburn 2667: foreach my $entry (keys(%domainrolehash)) {
1.901 albertel 2668: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2669: if ($domrolebuffer{$rudom}) {
2670: $domrolebuffer{$rudom}.='&'.&escape($entry).
2671: '='.&escape($domainrolehash{$entry});
2672: } else {
2673: $domrolebuffer{$rudom}.=&escape($entry).
2674: '='.&escape($domainrolehash{$entry});
2675: }
2676: delete $domainrolehash{$entry};
2677: }
2678: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2679: my %servers = &get_servers($dom,'library');
2680: foreach my $tryserver (keys(%servers)) {
2681: unless (&reply('domroleput:'.$dom.':'.
2682: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2683: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2684: }
1.662 raeburn 2685: }
2686: }
1.186 www 2687: $dumpcount++;
1.157 www 2688: }
2689:
2690: sub courselog {
2691: my $what=shift;
1.158 www 2692: $what=time.':'.$what;
1.620 albertel 2693: unless ($env{'request.course.id'}) { return ''; }
2694: $coursedombuf{$env{'request.course.id'}}=
2695: $env{'course.'.$env{'request.course.id'}.'.domain'};
2696: $coursenumbuf{$env{'request.course.id'}}=
2697: $env{'course.'.$env{'request.course.id'}.'.num'};
2698: $coursehombuf{$env{'request.course.id'}}=
2699: $env{'course.'.$env{'request.course.id'}.'.home'};
2700: $coursedescrbuf{$env{'request.course.id'}}=
2701: $env{'course.'.$env{'request.course.id'}.'.description'};
2702: $courseinstcodebuf{$env{'request.course.id'}}=
2703: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2704: $courseownerbuf{$env{'request.course.id'}}=
2705: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2706: $coursetypebuf{$env{'request.course.id'}}=
2707: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2708: if (defined $courselogs{$env{'request.course.id'}}) {
2709: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2710: } else {
1.620 albertel 2711: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2712: }
1.620 albertel 2713: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2714: &flushcourselogs();
2715: }
1.158 www 2716: }
2717:
2718: sub courseacclog {
2719: my $fnsymb=shift;
1.620 albertel 2720: unless ($env{'request.course.id'}) { return ''; }
2721: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2722: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2723: $what.=':POST';
1.583 matthew 2724: # FIXME: Probably ought to escape things....
1.800 albertel 2725: foreach my $key (keys(%env)) {
2726: if ($key=~/^form\.(.*)/) {
1.975 raeburn 2727: my $formitem = $1;
2728: if ($formitem =~ /^HWFILE(?:SIZE|TOOBIG)/) {
2729: $what.=':'.$formitem.'='.$env{$key};
2730: } elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
2731: $what.=':'.$formitem.'='.$env{$key};
2732: }
1.158 www 2733: }
1.191 harris41 2734: }
1.583 matthew 2735: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2736: # FIXME: We should not be depending on a form parameter that someone
2737: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2738: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2739: $what.= ':POST';
2740: # FIXME: Probably ought to escape things....
2741: foreach my $element ('courseexp','crsfulltext','crsrelated',
2742: 'crsdiscuss') {
1.620 albertel 2743: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2744: }
2745: }
1.158 www 2746: }
2747: &courselog($what);
1.149 www 2748: }
2749:
1.185 www 2750: sub countacc {
2751: my $url=&declutter(shift);
1.458 matthew 2752: return if (! defined($url) || $url eq '');
1.620 albertel 2753: unless ($env{'request.course.id'}) { return ''; }
2754: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2755: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2756: $accesshash{$key}++;
1.185 www 2757: }
1.349 www 2758:
1.361 www 2759: sub linklog {
2760: my ($from,$to)=@_;
2761: $from=&declutter($from);
2762: $to=&declutter($to);
2763: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2764: $accesshash{$to.'___'.$from.'___goto'}=1;
2765: }
2766:
1.349 www 2767: sub userrolelog {
2768: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2769: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2770: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2771: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2772: ($trole=~/^ta/)) {
1.350 www 2773: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2774: $userrolehash
2775: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2776: =$tend.':'.$tstart;
1.662 raeburn 2777: }
1.898 albertel 2778: if (($env{'request.role'} =~ /dc\./) &&
2779: (($trole=~/^au/) || ($trole=~/^in/) ||
2780: ($trole=~/^cc/) || ($trole=~/^ep/) ||
2781: ($trole=~/^cr/) || ($trole=~/^ta/))) {
2782: $userrolehash
2783: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2784: =$tend.':'.$tstart;
2785: }
1.662 raeburn 2786: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2787: ($trole=~/^li/) || ($trole=~/^li/) ||
2788: ($trole=~/^au/) || ($trole=~/^dg/) ||
2789: ($trole=~/^sc/)) {
2790: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2791: $domainrolehash
2792: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2793: = $tend.':'.$tstart;
2794: }
1.351 www 2795: }
2796:
1.957 raeburn 2797: sub courserolelog {
2798: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
2799: if (($trole eq 'cc') || ($trole eq 'in') ||
2800: ($trole eq 'ep') || ($trole eq 'ad') ||
2801: ($trole eq 'ta') || ($trole eq 'st') ||
2802: ($trole=~/^cr/) || ($trole eq 'gr')) {
2803: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
2804: my $cdom = $1;
2805: my $cnum = $2;
2806: my $sec = $3;
2807: my $namespace = 'rolelog';
2808: my %storehash = (
2809: role => $trole,
2810: start => $tstart,
2811: end => $tend,
2812: selfenroll => $selfenroll,
2813: context => $context,
2814: );
2815: if ($trole eq 'gr') {
2816: $namespace = 'groupslog';
2817: $storehash{'group'} = $sec;
2818: } else {
2819: $storehash{'section'} = $sec;
2820: }
2821: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
1.996 raeburn 2822: if (($trole ne 'st') || ($sec ne '')) {
2823: &devalidate_cache_new('getcourseroles',$cdom.'_'.$cnum);
2824: }
1.957 raeburn 2825: }
2826: }
2827: return;
2828: }
2829:
1.351 www 2830: sub get_course_adv_roles {
1.948 raeburn 2831: my ($cid,$codes) = @_;
1.620 albertel 2832: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2833: my %coursehash=&coursedescription($cid);
1.988 raeburn 2834: my $crstype = &Apache::loncommon::course_type($cid);
1.470 www 2835: my %nothide=();
1.800 albertel 2836: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 2837: if ($user !~ /:/) {
2838: $nothide{join(':',split(/[\@]/,$user))}=1;
2839: } else {
2840: $nothide{$user}=1;
2841: }
1.470 www 2842: }
1.351 www 2843: my %returnhash=();
2844: my %dumphash=
2845: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2846: my $now=time;
1.997 raeburn 2847: my %privileged;
1.1000 raeburn 2848: foreach my $entry (keys(%dumphash)) {
1.800 albertel 2849: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2850: if (($tstart) && ($tstart<0)) { next; }
2851: if (($tend) && ($tend<$now)) { next; }
2852: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2853: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2854: if ($username eq '' || $domain eq '') { next; }
1.997 raeburn 2855: unless (ref($privileged{$domain}) eq 'HASH') {
2856: my %dompersonnel =
1.998 raeburn 2857: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
1.997 raeburn 2858: $privileged{$domain} = {};
2859: foreach my $server (keys(%dompersonnel)) {
1.999 raeburn 2860: if (ref($dompersonnel{$server}) eq 'HASH') {
1.997 raeburn 2861: foreach my $user (keys(%{$dompersonnel{$server}})) {
2862: my ($trole,$uname,$udom) = split(/:/,$user);
2863: $privileged{$udom}{$uname} = 1;
2864: }
2865: }
2866: }
2867: }
2868: if ((exists($privileged{$domain}{$username})) &&
2869: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2870: if ($role eq 'cr') { next; }
1.948 raeburn 2871: if ($codes) {
2872: if ($section) { $role .= ':'.$section; }
2873: if ($returnhash{$role}) {
2874: $returnhash{$role}.=','.$username.':'.$domain;
2875: } else {
2876: $returnhash{$role}=$username.':'.$domain;
2877: }
1.351 www 2878: } else {
1.988 raeburn 2879: my $key=&plaintext($role,$crstype);
1.973 bisitz 2880: if ($section) { $key.=' ('.&Apache::lonlocal::mt('Section [_1]',$section).')'; }
1.948 raeburn 2881: if ($returnhash{$key}) {
2882: $returnhash{$key}.=','.$username.':'.$domain;
2883: } else {
2884: $returnhash{$key}=$username.':'.$domain;
2885: }
1.351 www 2886: }
1.948 raeburn 2887: }
1.400 www 2888: return %returnhash;
2889: }
2890:
2891: sub get_my_roles {
1.937 raeburn 2892: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 2893: unless (defined($uname)) { $uname=$env{'user.name'}; }
2894: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 2895: my (%dumphash,%nothide);
1.858 raeburn 2896: if ($context eq 'userroles') {
2897: %dumphash = &dump('roles',$udom,$uname);
2898: } else {
2899: %dumphash=
1.400 www 2900: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 2901: if ($hidepriv) {
2902: my %coursehash=&coursedescription($udom.'_'.$uname);
2903: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2904: if ($user !~ /:/) {
2905: $nothide{join(':',split(/[\@]/,$user))} = 1;
2906: } else {
2907: $nothide{$user} = 1;
2908: }
2909: }
2910: }
1.858 raeburn 2911: }
1.400 www 2912: my %returnhash=();
2913: my $now=time;
1.999 raeburn 2914: my %privileged;
1.800 albertel 2915: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2916: my ($role,$tend,$tstart);
2917: if ($context eq 'userroles') {
2918: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2919: } else {
2920: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2921: }
1.400 www 2922: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2923: my $status = 'active';
1.939 raeburn 2924: if (($tend) && ($tend<=$now)) {
1.832 raeburn 2925: $status = 'previous';
2926: }
2927: if (($tstart) && ($now<$tstart)) {
2928: $status = 'future';
2929: }
2930: if (ref($types) eq 'ARRAY') {
2931: if (!grep(/^\Q$status\E$/,@{$types})) {
2932: next;
2933: }
2934: } else {
2935: if ($status ne 'active') {
2936: next;
2937: }
2938: }
1.867 raeburn 2939: my ($rolecode,$username,$domain,$section,$area);
2940: if ($context eq 'userroles') {
2941: ($area,$rolecode) = split(/_/,$entry);
2942: (undef,$domain,$username,$section) = split(/\//,$area);
2943: } else {
2944: ($role,$username,$domain,$section) = split(/\:/,$entry);
2945: }
1.832 raeburn 2946: if (ref($roledoms) eq 'ARRAY') {
2947: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2948: next;
2949: }
2950: }
2951: if (ref($roles) eq 'ARRAY') {
2952: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 2953: if ($role =~ /^cr\//) {
2954: if (!grep(/^cr$/,@{$roles})) {
2955: next;
2956: }
2957: } else {
2958: next;
2959: }
1.832 raeburn 2960: }
1.867 raeburn 2961: }
1.937 raeburn 2962: if ($hidepriv) {
1.999 raeburn 2963: if ($context eq 'userroles') {
2964: if ((&privileged($username,$domain)) &&
2965: (!$nothide{$username.':'.$domain})) {
2966: next;
2967: }
2968: } else {
2969: unless (ref($privileged{$domain}) eq 'HASH') {
2970: my %dompersonnel =
2971: &Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
2972: $privileged{$domain} = {};
2973: if (keys(%dompersonnel)) {
2974: foreach my $server (keys(%dompersonnel)) {
2975: if (ref($dompersonnel{$server}) eq 'HASH') {
2976: foreach my $user (keys(%{$dompersonnel{$server}})) {
2977: my ($trole,$uname,$udom) = split(/:/,$user);
2978: $privileged{$udom}{$uname} = $trole;
2979: }
2980: }
2981: }
2982: }
2983: }
2984: if (exists($privileged{$domain}{$username})) {
2985: if (!$nothide{$username.':'.$domain}) {
2986: next;
2987: }
2988: }
1.937 raeburn 2989: }
2990: }
1.933 raeburn 2991: if ($withsec) {
2992: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
2993: $tstart.':'.$tend;
2994: } else {
2995: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
2996: }
1.832 raeburn 2997: }
1.373 www 2998: return %returnhash;
1.399 www 2999: }
3000:
3001: # ----------------------------------------------------- Frontpage Announcements
3002: #
3003: #
3004:
3005: sub postannounce {
3006: my ($server,$text)=@_;
1.844 albertel 3007: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 3008: unless ($text=~/\w/) { $text=''; }
3009: return &reply('setannounce:'.&escape($text),$server);
3010: }
3011:
3012: sub getannounce {
1.448 albertel 3013:
3014: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 3015: my $announcement='';
1.800 albertel 3016: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 3017: close($fh);
1.399 www 3018: if ($announcement=~/\w/) {
3019: return
3020: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 3021: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 3022: } else {
3023: return '';
3024: }
3025: } else {
3026: return '';
3027: }
1.351 www 3028: }
1.353 www 3029:
3030: # ---------------------------------------------------------- Course ID routines
3031: # Deal with domain's nohist_courseid.db files
3032: #
3033:
3034: sub courseidput {
1.921 raeburn 3035: my ($domain,$storehash,$coursehome,$caller) = @_;
3036: my $outcome;
3037: if ($caller eq 'timeonly') {
3038: my $cids = '';
3039: foreach my $item (keys(%$storehash)) {
3040: $cids.=&escape($item).'&';
3041: }
3042: $cids=~s/\&$//;
3043: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
3044: $coursehome);
3045: } else {
3046: my $items = '';
3047: foreach my $item (keys(%$storehash)) {
3048: $items.= &escape($item).'='.
3049: &freeze_escape($$storehash{$item}).'&';
3050: }
3051: $items=~s/\&$//;
3052: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
3053: $coursehome);
1.918 raeburn 3054: }
3055: if ($outcome eq 'unknown_cmd') {
3056: my $what;
3057: foreach my $cid (keys(%$storehash)) {
3058: $what .= &escape($cid).'=';
1.921 raeburn 3059: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 3060: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 3061: }
3062: $what =~ s/\:$/&/;
3063: }
3064: $what =~ s/\&$//;
3065: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
3066: } else {
3067: return $outcome;
3068: }
1.353 www 3069: }
3070:
3071: sub courseiddump {
1.921 raeburn 3072: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 3073: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.1008 raeburn 3074: $selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,$cloneonly)=@_;
1.918 raeburn 3075: my $as_hash = 1;
3076: my %returnhash;
3077: if (!$domfilter) { $domfilter=''; }
1.845 albertel 3078: my %libserv = &all_library();
3079: foreach my $tryserver (keys(%libserv)) {
3080: if ( ( $hostidflag == 1
3081: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
3082: || (!defined($hostidflag)) ) {
3083:
1.918 raeburn 3084: if (($domfilter eq '') ||
3085: (&host_domain($tryserver) eq $domfilter)) {
3086: my $rep =
3087: &reply('courseiddump:'.&host_domain($tryserver).':'.
3088: $sincefilter.':'.&escape($descfilter).':'.
3089: &escape($instcodefilter).':'.&escape($ownerfilter).
3090: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 3091: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 3092: &escape($selfenrollonly).':'.&escape($catfilter).':'.
1.1008 raeburn 3093: $showhidden.':'.$caller.':'.&escape($cloner).':'.
3094: &escape($cc_clone).':'.$cloneonly,$tryserver);
1.918 raeburn 3095: my @pairs=split(/\&/,$rep);
3096: foreach my $item (@pairs) {
3097: my ($key,$value)=split(/\=/,$item,2);
3098: $key = &unescape($key);
3099: next if ($key =~ /^error: 2 /);
3100: my $result = &thaw_unescape($value);
3101: if (ref($result) eq 'HASH') {
3102: $returnhash{$key}=$result;
3103: } else {
1.921 raeburn 3104: my @responses = split(/:/,$value);
3105: my @items = ('description','inst_code','owner','type');
1.918 raeburn 3106: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 3107: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 3108: }
1.1008 raeburn 3109: }
1.353 www 3110: }
3111: }
3112: }
3113: }
3114: return %returnhash;
3115: }
3116:
1.658 raeburn 3117: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 3118:
3119: sub dcmailput {
1.685 raeburn 3120: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 3121: my $status = &Apache::lonnet::critical(
1.740 www 3122: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
3123: &escape($message),$server);
1.662 raeburn 3124: return $status;
3125: }
3126:
1.658 raeburn 3127: sub dcmaildump {
3128: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 3129: my %returnhash=();
1.846 albertel 3130:
3131: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 3132: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
3133: &escape($enddate).':';
3134: my @esc_senders=map { &escape($_)} @$senders;
3135: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 3136: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 3137: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 3138: if (($key) && ($value)) {
3139: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 3140: }
3141: }
3142: }
3143: return %returnhash;
3144: }
1.662 raeburn 3145: # ---------------------------------------------------------- Domain roles
3146:
3147: sub get_domain_roles {
3148: my ($dom,$roles,$startdate,$enddate)=@_;
1.1018 raeburn 3149: if ((!defined($startdate)) || ($startdate eq '')) {
1.662 raeburn 3150: $startdate = '.';
3151: }
1.1018 raeburn 3152: if ((!defined($enddate)) || ($enddate eq '')) {
1.662 raeburn 3153: $enddate = '.';
3154: }
1.922 raeburn 3155: my $rolelist;
3156: if (ref($roles) eq 'ARRAY') {
3157: $rolelist = join(':',@{$roles});
3158: }
1.662 raeburn 3159: my %personnel = ();
1.841 albertel 3160:
3161: my %servers = &get_servers($dom,'library');
3162: foreach my $tryserver (keys(%servers)) {
3163: %{$personnel{$tryserver}}=();
3164: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
3165: &escape($startdate).':'.
3166: &escape($enddate).':'.
3167: &escape($rolelist), $tryserver))) {
3168: my ($key,$value) = split(/\=/,$line,2);
3169: if (($key) && ($value)) {
3170: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
3171: }
3172: }
1.662 raeburn 3173: }
3174: return %personnel;
3175: }
1.658 raeburn 3176:
1.149 www 3177: # ----------------------------------------------------------- Check out an item
3178:
1.504 albertel 3179: sub get_first_access {
3180: my ($type,$argsymb)=@_;
1.790 albertel 3181: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3182: if ($argsymb) { $symb=$argsymb; }
3183: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 3184: if ($type eq 'course') {
3185: $res='course';
3186: } elsif ($type eq 'map') {
1.588 albertel 3187: $res=&symbread($map);
3188: } else {
3189: $res=$symb;
3190: }
3191: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
3192: return $times{"$courseid\0$res"};
1.504 albertel 3193: }
3194:
3195: sub set_first_access {
3196: my ($type)=@_;
1.790 albertel 3197: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 3198: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 3199: if ($type eq 'course') {
3200: $res='course';
3201: } elsif ($type eq 'map') {
1.588 albertel 3202: $res=&symbread($map);
3203: } else {
3204: $res=$symb;
3205: }
3206: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 3207: if (!$firstaccess) {
1.588 albertel 3208: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 3209: }
3210: return 'already_set';
1.504 albertel 3211: }
3212:
1.149 www 3213: sub checkout {
3214: my ($symb,$tuname,$tudom,$tcrsid)=@_;
3215: my $now=time;
3216: my $lonhost=$perlvar{'lonHostID'};
3217: my $infostr=&escape(
1.234 www 3218: 'CHECKOUTTOKEN&'.
1.149 www 3219: $tuname.'&'.
3220: $tudom.'&'.
3221: $tcrsid.'&'.
3222: $symb.'&'.
3223: $now.'&'.$ENV{'REMOTE_ADDR'});
3224: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 3225: if ($token=~/^error\:/) {
1.672 albertel 3226: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3227: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
3228: "</font>");
3229: return '';
3230: }
3231:
1.149 www 3232: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
3233: $token=~tr/a-z/A-Z/;
3234:
1.153 www 3235: my %infohash=('resource.0.outtoken' => $token,
3236: 'resource.0.checkouttime' => $now,
3237: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 3238:
3239: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3240: return '';
1.151 www 3241: } else {
1.672 albertel 3242: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3243: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
3244: "</font>");
1.149 www 3245: }
3246:
3247: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3248: &escape('Checkout '.$infostr.' - '.
3249: $token)) ne 'ok') {
3250: return '';
1.151 www 3251: } else {
1.672 albertel 3252: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 3253: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
3254: "</font>");
1.149 www 3255: }
1.151 www 3256: return $token;
1.149 www 3257: }
3258:
3259: # ------------------------------------------------------------ Check in an item
3260:
3261: sub checkin {
3262: my $token=shift;
1.150 www 3263: my $now=time;
3264: my ($ta,$tb,$lonhost)=split(/\*/,$token);
3265: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 3266: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 3267: $dtoken=~s/\W/\_/g;
1.234 www 3268: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 3269: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
3270:
1.154 www 3271: unless (($tuname) && ($tudom)) {
3272: &logthis('Check in '.$token.' ('.$dtoken.') failed');
3273: return '';
3274: }
3275:
3276: unless (&allowed('mgr',$tcrsid)) {
3277: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 3278: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 3279: return '';
3280: }
3281:
1.153 www 3282: my %infohash=('resource.0.intoken' => $token,
3283: 'resource.0.checkintime' => $now,
3284: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 3285:
3286: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
3287: return '';
3288: }
3289:
3290: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
3291: &escape('Checkin - '.$token)) ne 'ok') {
3292: return '';
3293: }
3294:
3295: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 3296: }
3297:
3298: # --------------------------------------------- Set Expire Date for Spreadsheet
3299:
3300: sub expirespread {
3301: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 3302: my $cid=$env{'request.course.id'};
1.110 www 3303: if ($cid) {
3304: my $now=time;
3305: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3306: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3307: $env{'course.'.$cid.'.num'}.
1.110 www 3308: ':nohist_expirationdates:'.
3309: &escape($key).'='.$now,
1.620 albertel 3310: $env{'course.'.$cid.'.home'})
1.110 www 3311: }
3312: return 'ok';
1.14 www 3313: }
3314:
1.109 www 3315: # ----------------------------------------------------- Devalidate Spreadsheets
3316:
3317: sub devalidate {
1.325 www 3318: my ($symb,$uname,$udom)=@_;
1.620 albertel 3319: my $cid=$env{'request.course.id'};
1.109 www 3320: if ($cid) {
1.391 matthew 3321: # delete the stored spreadsheets for
3322: # - the student level sheet of this user in course's homespace
3323: # - the assessment level sheet for this resource
3324: # for this user in user's homespace
1.553 albertel 3325: # - current conditional state info
1.325 www 3326: my $key=$uname.':'.$udom.':';
1.109 www 3327: my $status=
1.299 matthew 3328: &del('nohist_calculatedsheets',
1.391 matthew 3329: [$key.'studentcalc:'],
1.620 albertel 3330: $env{'course.'.$cid.'.domain'},
3331: $env{'course.'.$cid.'.num'})
1.133 albertel 3332: .' '.
3333: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3334: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3335: unless ($status eq 'ok ok') {
3336: &logthis('Could not devalidate spreadsheet '.
1.325 www 3337: $uname.' at '.$udom.' for '.
1.109 www 3338: $symb.': '.$status);
1.133 albertel 3339: }
1.553 albertel 3340: &delenv('user.state.'.$cid);
1.109 www 3341: }
3342: }
3343:
1.265 albertel 3344: sub get_scalar {
3345: my ($string,$end) = @_;
3346: my $value;
3347: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3348: $value = $1;
3349: } elsif ($$string =~ s/^([^&]*?)&//) {
3350: $value = $1;
3351: }
3352: return &unescape($value);
3353: }
3354:
3355: sub array2str {
3356: my (@array) = @_;
3357: my $result=&arrayref2str(\@array);
3358: $result=~s/^__ARRAY_REF__//;
3359: $result=~s/__END_ARRAY_REF__$//;
3360: return $result;
3361: }
3362:
1.204 albertel 3363: sub arrayref2str {
3364: my ($arrayref) = @_;
1.265 albertel 3365: my $result='__ARRAY_REF__';
1.204 albertel 3366: foreach my $elem (@$arrayref) {
1.265 albertel 3367: if(ref($elem) eq 'ARRAY') {
3368: $result.=&arrayref2str($elem).'&';
3369: } elsif(ref($elem) eq 'HASH') {
3370: $result.=&hashref2str($elem).'&';
3371: } elsif(ref($elem)) {
3372: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3373: } else {
3374: $result.=&escape($elem).'&';
3375: }
3376: }
3377: $result=~s/\&$//;
1.265 albertel 3378: $result .= '__END_ARRAY_REF__';
1.204 albertel 3379: return $result;
3380: }
3381:
1.168 albertel 3382: sub hash2str {
1.204 albertel 3383: my (%hash) = @_;
3384: my $result=&hashref2str(\%hash);
1.265 albertel 3385: $result=~s/^__HASH_REF__//;
3386: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3387: return $result;
3388: }
3389:
3390: sub hashref2str {
3391: my ($hashref)=@_;
1.265 albertel 3392: my $result='__HASH_REF__';
1.800 albertel 3393: foreach my $key (sort(keys(%$hashref))) {
3394: if (ref($key) eq 'ARRAY') {
3395: $result.=&arrayref2str($key).'=';
3396: } elsif (ref($key) eq 'HASH') {
3397: $result.=&hashref2str($key).'=';
3398: } elsif (ref($key)) {
1.265 albertel 3399: $result.='=';
1.800 albertel 3400: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3401: } else {
1.800 albertel 3402: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3403: }
3404:
1.800 albertel 3405: if(ref($hashref->{$key}) eq 'ARRAY') {
3406: $result.=&arrayref2str($hashref->{$key}).'&';
3407: } elsif(ref($hashref->{$key}) eq 'HASH') {
3408: $result.=&hashref2str($hashref->{$key}).'&';
3409: } elsif(ref($hashref->{$key})) {
1.265 albertel 3410: $result.='&';
1.800 albertel 3411: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3412: } else {
1.800 albertel 3413: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3414: }
3415: }
1.168 albertel 3416: $result=~s/\&$//;
1.265 albertel 3417: $result .= '__END_HASH_REF__';
1.168 albertel 3418: return $result;
3419: }
3420:
3421: sub str2hash {
1.265 albertel 3422: my ($string)=@_;
3423: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3424: return %$hash;
3425: }
3426:
3427: sub str2hashref {
1.168 albertel 3428: my ($string) = @_;
1.265 albertel 3429:
3430: my %hash;
3431:
3432: if($string !~ /^__HASH_REF__/) {
3433: if (! ($string eq '' || !defined($string))) {
3434: $hash{'error'}='Not hash reference';
3435: }
3436: return (\%hash, $string);
3437: }
3438:
3439: $string =~ s/^__HASH_REF__//;
3440:
3441: while($string !~ /^__END_HASH_REF__/) {
3442: #key
3443: my $key='';
3444: if($string =~ /^__HASH_REF__/) {
3445: ($key, $string)=&str2hashref($string);
3446: if(defined($key->{'error'})) {
3447: $hash{'error'}='Bad data';
3448: return (\%hash, $string);
3449: }
3450: } elsif($string =~ /^__ARRAY_REF__/) {
3451: ($key, $string)=&str2arrayref($string);
3452: if($key->[0] eq 'Array reference error') {
3453: $hash{'error'}='Bad data';
3454: return (\%hash, $string);
3455: }
3456: } else {
3457: $string =~ s/^(.*?)=//;
1.267 albertel 3458: $key=&unescape($1);
1.265 albertel 3459: }
3460: $string =~ s/^=//;
3461:
3462: #value
3463: my $value='';
3464: if($string =~ /^__HASH_REF__/) {
3465: ($value, $string)=&str2hashref($string);
3466: if(defined($value->{'error'})) {
3467: $hash{'error'}='Bad data';
3468: return (\%hash, $string);
3469: }
3470: } elsif($string =~ /^__ARRAY_REF__/) {
3471: ($value, $string)=&str2arrayref($string);
3472: if($value->[0] eq 'Array reference error') {
3473: $hash{'error'}='Bad data';
3474: return (\%hash, $string);
3475: }
3476: } else {
3477: $value=&get_scalar(\$string,'__END_HASH_REF__');
3478: }
3479: $string =~ s/^&//;
3480:
3481: $hash{$key}=$value;
1.204 albertel 3482: }
1.265 albertel 3483:
3484: $string =~ s/^__END_HASH_REF__//;
3485:
3486: return (\%hash, $string);
1.204 albertel 3487: }
3488:
3489: sub str2array {
1.265 albertel 3490: my ($string)=@_;
3491: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3492: return @$array;
3493: }
3494:
3495: sub str2arrayref {
1.204 albertel 3496: my ($string) = @_;
1.265 albertel 3497: my @array;
3498:
3499: if($string !~ /^__ARRAY_REF__/) {
3500: if (! ($string eq '' || !defined($string))) {
3501: $array[0]='Array reference error';
3502: }
3503: return (\@array, $string);
3504: }
3505:
3506: $string =~ s/^__ARRAY_REF__//;
3507:
3508: while($string !~ /^__END_ARRAY_REF__/) {
3509: my $value='';
3510: if($string =~ /^__HASH_REF__/) {
3511: ($value, $string)=&str2hashref($string);
3512: if(defined($value->{'error'})) {
3513: $array[0] ='Array reference error';
3514: return (\@array, $string);
3515: }
3516: } elsif($string =~ /^__ARRAY_REF__/) {
3517: ($value, $string)=&str2arrayref($string);
3518: if($value->[0] eq 'Array reference error') {
3519: $array[0] ='Array reference error';
3520: return (\@array, $string);
3521: }
3522: } else {
3523: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3524: }
3525: $string =~ s/^&//;
3526:
3527: push(@array, $value);
1.191 harris41 3528: }
1.265 albertel 3529:
3530: $string =~ s/^__END_ARRAY_REF__//;
3531:
3532: return (\@array, $string);
1.168 albertel 3533: }
3534:
1.167 albertel 3535: # -------------------------------------------------------------------Temp Store
3536:
1.168 albertel 3537: sub tmpreset {
3538: my ($symb,$namespace,$domain,$stuname) = @_;
3539: if (!$symb) {
3540: $symb=&symbread();
1.620 albertel 3541: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3542: }
3543: $symb=escape($symb);
3544:
1.620 albertel 3545: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3546: $namespace=~s/\//\_/g;
3547: $namespace=~s/\W//g;
3548:
1.620 albertel 3549: if (!$domain) { $domain=$env{'user.domain'}; }
3550: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3551: if ($domain eq 'public' && $stuname eq 'public') {
3552: $stuname=$ENV{'REMOTE_ADDR'};
3553: }
1.168 albertel 3554: my $path=$perlvar{'lonDaemons'}.'/tmp';
3555: my %hash;
3556: if (tie(%hash,'GDBM_File',
3557: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3558: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 3559: foreach my $key (keys(%hash)) {
1.180 albertel 3560: if ($key=~ /:$symb/) {
1.168 albertel 3561: delete($hash{$key});
3562: }
3563: }
3564: }
3565: }
3566:
1.167 albertel 3567: sub tmpstore {
1.168 albertel 3568: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3569:
3570: if (!$symb) {
3571: $symb=&symbread();
1.620 albertel 3572: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3573: }
3574: $symb=escape($symb);
3575:
3576: if (!$namespace) {
3577: # I don't think we would ever want to store this for a course.
3578: # it seems this will only be used if we don't have a course.
1.620 albertel 3579: #$namespace=$env{'request.course.id'};
1.168 albertel 3580: #if (!$namespace) {
1.620 albertel 3581: $namespace=$env{'request.state'};
1.168 albertel 3582: #}
3583: }
3584: $namespace=~s/\//\_/g;
3585: $namespace=~s/\W//g;
1.620 albertel 3586: if (!$domain) { $domain=$env{'user.domain'}; }
3587: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3588: if ($domain eq 'public' && $stuname eq 'public') {
3589: $stuname=$ENV{'REMOTE_ADDR'};
3590: }
1.168 albertel 3591: my $now=time;
3592: my %hash;
3593: my $path=$perlvar{'lonDaemons'}.'/tmp';
3594: if (tie(%hash,'GDBM_File',
3595: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3596: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3597: $hash{"version:$symb"}++;
3598: my $version=$hash{"version:$symb"};
3599: my $allkeys='';
3600: foreach my $key (keys(%$storehash)) {
3601: $allkeys.=$key.':';
1.591 albertel 3602: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3603: }
3604: $hash{"$version:$symb:timestamp"}=$now;
3605: $allkeys.='timestamp';
3606: $hash{"$version:keys:$symb"}=$allkeys;
3607: if (untie(%hash)) {
3608: return 'ok';
3609: } else {
3610: return "error:$!";
3611: }
3612: } else {
3613: return "error:$!";
3614: }
3615: }
1.167 albertel 3616:
1.168 albertel 3617: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3618:
1.168 albertel 3619: sub tmprestore {
3620: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3621:
1.168 albertel 3622: if (!$symb) {
3623: $symb=&symbread();
1.620 albertel 3624: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3625: }
3626: $symb=escape($symb);
3627:
1.620 albertel 3628: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3629:
1.620 albertel 3630: if (!$domain) { $domain=$env{'user.domain'}; }
3631: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3632: if ($domain eq 'public' && $stuname eq 'public') {
3633: $stuname=$ENV{'REMOTE_ADDR'};
3634: }
1.168 albertel 3635: my %returnhash;
3636: $namespace=~s/\//\_/g;
3637: $namespace=~s/\W//g;
3638: my %hash;
3639: my $path=$perlvar{'lonDaemons'}.'/tmp';
3640: if (tie(%hash,'GDBM_File',
3641: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3642: &GDBM_READER(),0640)) {
1.168 albertel 3643: my $version=$hash{"version:$symb"};
3644: $returnhash{'version'}=$version;
3645: my $scope;
3646: for ($scope=1;$scope<=$version;$scope++) {
3647: my $vkeys=$hash{"$scope:keys:$symb"};
3648: my @keys=split(/:/,$vkeys);
3649: my $key;
3650: $returnhash{"$scope:keys"}=$vkeys;
3651: foreach $key (@keys) {
1.591 albertel 3652: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3653: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3654: }
3655: }
1.168 albertel 3656: if (!(untie(%hash))) {
3657: return "error:$!";
3658: }
3659: } else {
3660: return "error:$!";
3661: }
3662: return %returnhash;
1.167 albertel 3663: }
3664:
1.9 www 3665: # ----------------------------------------------------------------------- Store
3666:
3667: sub store {
1.124 www 3668: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3669: my $home='';
3670:
1.168 albertel 3671: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3672:
1.213 www 3673: $symb=&symbclean($symb);
1.122 albertel 3674: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3675:
1.620 albertel 3676: if (!$domain) { $domain=$env{'user.domain'}; }
3677: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3678:
3679: &devalidate($symb,$stuname,$domain);
1.109 www 3680:
3681: $symb=escape($symb);
1.187 www 3682: if (!$namespace) {
1.620 albertel 3683: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3684: return '';
3685: }
3686: }
1.620 albertel 3687: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3688:
3689: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3690: $$storehash{'host'}=$perlvar{'lonHostID'};
3691:
1.12 www 3692: my $namevalue='';
1.800 albertel 3693: foreach my $key (keys(%$storehash)) {
3694: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3695: }
1.12 www 3696: $namevalue=~s/\&$//;
1.187 www 3697: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3698: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3699: }
3700:
1.47 www 3701: # -------------------------------------------------------------- Critical Store
3702:
3703: sub cstore {
1.124 www 3704: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3705: my $home='';
3706:
1.168 albertel 3707: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3708:
1.213 www 3709: $symb=&symbclean($symb);
1.122 albertel 3710: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3711:
1.620 albertel 3712: if (!$domain) { $domain=$env{'user.domain'}; }
3713: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3714:
3715: &devalidate($symb,$stuname,$domain);
1.109 www 3716:
3717: $symb=escape($symb);
1.187 www 3718: if (!$namespace) {
1.620 albertel 3719: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3720: return '';
3721: }
3722: }
1.620 albertel 3723: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3724:
3725: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3726: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3727:
1.47 www 3728: my $namevalue='';
1.800 albertel 3729: foreach my $key (keys(%$storehash)) {
3730: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3731: }
1.47 www 3732: $namevalue=~s/\&$//;
1.187 www 3733: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3734: return critical
3735: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3736: }
3737:
1.9 www 3738: # --------------------------------------------------------------------- Restore
3739:
3740: sub restore {
1.124 www 3741: my ($symb,$namespace,$domain,$stuname) = @_;
3742: my $home='';
3743:
1.168 albertel 3744: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3745:
1.122 albertel 3746: if (!$symb) {
3747: unless ($symb=escape(&symbread())) { return ''; }
3748: } else {
1.213 www 3749: $symb=&escape(&symbclean($symb));
1.122 albertel 3750: }
1.188 www 3751: if (!$namespace) {
1.620 albertel 3752: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3753: return '';
3754: }
3755: }
1.620 albertel 3756: if (!$domain) { $domain=$env{'user.domain'}; }
3757: if (!$stuname) { $stuname=$env{'user.name'}; }
3758: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3759: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3760:
1.12 www 3761: my %returnhash=();
1.800 albertel 3762: foreach my $line (split(/\&/,$answer)) {
3763: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3764: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3765: }
1.75 www 3766: my $version;
3767: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3768: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3769: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3770: }
1.75 www 3771: }
1.13 www 3772: return %returnhash;
1.34 www 3773: }
3774:
3775: # ---------------------------------------------------------- Course Description
3776:
3777: sub coursedescription {
1.731 albertel 3778: my ($courseid,$args)=@_;
1.34 www 3779: $courseid=~s/^\///;
1.49 www 3780: $courseid=~s/\_/\//g;
1.34 www 3781: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3782: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3783: my $normalid=$cdomain.'_'.$cnum;
3784: # need to always cache even if we get errors otherwise we keep
3785: # trying and trying and trying to get the course description.
3786: my %envhash=();
3787: my %returnhash=();
1.731 albertel 3788:
3789: my $expiretime=600;
3790: if ($env{'request.course.id'} eq $normalid) {
3791: $expiretime=120;
3792: }
3793:
3794: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3795: if (!$args->{'freshen_cache'}
3796: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3797: foreach my $key (keys(%env)) {
3798: next if ($key !~ /^\Q$prefix\E(.*)/);
3799: my ($setting) = $1;
3800: $returnhash{$setting} = $env{$key};
3801: }
3802: return %returnhash;
3803: }
3804:
3805: # get the data agin
3806: if (!$args->{'one_time'}) {
3807: $envhash{'course.'.$normalid.'.last_cache'}=time;
3808: }
1.811 albertel 3809:
1.34 www 3810: if ($chome ne 'no_host') {
1.302 albertel 3811: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3812: if (!exists($returnhash{'con_lost'})) {
3813: $returnhash{'home'}= $chome;
3814: $returnhash{'domain'} = $cdomain;
3815: $returnhash{'num'} = $cnum;
1.741 raeburn 3816: if (!defined($returnhash{'type'})) {
3817: $returnhash{'type'} = 'Course';
3818: }
1.130 albertel 3819: while (my ($name,$value) = each %returnhash) {
1.53 www 3820: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3821: }
1.270 www 3822: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3823: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3824: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3825: $envhash{'course.'.$normalid.'.home'}=$chome;
3826: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3827: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3828: }
3829: }
1.731 albertel 3830: if (!$args->{'one_time'}) {
1.949 raeburn 3831: &appenv(\%envhash);
1.731 albertel 3832: }
1.302 albertel 3833: return %returnhash;
1.461 www 3834: }
3835:
3836: # -------------------------------------------------See if a user is privileged
3837:
3838: sub privileged {
3839: my ($username,$domain)=@_;
3840: my $rolesdump=&reply("dump:$domain:$username:roles",
3841: &homeserver($username,$domain));
3842: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
3843: my $now=time;
3844: if ($rolesdump ne '') {
1.800 albertel 3845: foreach my $entry (split(/&/,$rolesdump)) {
3846: if ($entry!~/^rolesdef_/) {
3847: my ($area,$role)=split(/=/,$entry);
1.461 www 3848: $area=~s/\_\w\w$//;
3849: my ($trole,$tend,$tstart)=split(/_/,$role);
3850: if (($trole eq 'dc') || ($trole eq 'su')) {
3851: my $active=1;
3852: if ($tend) {
3853: if ($tend<$now) { $active=0; }
3854: }
3855: if ($tstart) {
3856: if ($tstart>$now) { $active=0; }
3857: }
3858: if ($active) { return 1; }
3859: }
3860: }
3861: }
3862: }
3863: return 0;
1.9 www 3864: }
1.1 albertel 3865:
1.103 harris41 3866: # -------------------------------------------------------- Get user privileges
1.11 www 3867:
3868: sub rolesinit {
3869: my ($domain,$username,$authhost)=@_;
1.966 raeburn 3870: my %userroles;
1.11 www 3871: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.966 raeburn 3872: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return \%userroles; }
1.11 www 3873: my %allroles=();
1.678 raeburn 3874: my %allgroups=();
1.11 www 3875: my $now=time;
1.966 raeburn 3876: %userroles = ('user.login.time' => $now);
1.678 raeburn 3877: my $group_privs;
1.11 www 3878:
3879: if ($rolesdump ne '') {
1.800 albertel 3880: foreach my $entry (split(/&/,$rolesdump)) {
3881: if ($entry!~/^rolesdef_/) {
3882: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3883: $area=~s/\_\w\w$//;
1.678 raeburn 3884: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3885: if ($role=~/^cr/) {
1.807 albertel 3886: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3887: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3888: ($tend,$tstart)=split('_',$trest);
3889: } else {
3890: $trole=$role;
3891: }
1.678 raeburn 3892: } elsif ($role =~ m|^gr/|) {
3893: ($trole,$tend,$tstart) = split(/_/,$role);
3894: ($trole,$group_privs) = split(/\//,$trole);
3895: $group_privs = &unescape($group_privs);
1.587 albertel 3896: } else {
3897: ($trole,$tend,$tstart)=split(/_/,$role);
3898: }
1.743 albertel 3899: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3900: $username);
3901: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3902: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3903: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3904: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3905: my $spec=$trole.'.'.$area;
3906: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3907: if ($trole =~ /^cr\//) {
1.567 raeburn 3908: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3909: } elsif ($trole eq 'gr') {
3910: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3911: } else {
1.567 raeburn 3912: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3913: }
1.12 www 3914: }
1.662 raeburn 3915: }
1.191 harris41 3916: }
1.743 albertel 3917: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3918: $userroles{'user.adv'} = $adv;
3919: $userroles{'user.author'} = $author;
1.620 albertel 3920: $env{'user.adv'}=$adv;
1.11 www 3921: }
1.743 albertel 3922: return \%userroles;
1.11 www 3923: }
3924:
1.567 raeburn 3925: sub set_arearole {
3926: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3927: # log the associated role with the area
3928: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3929: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3930: }
3931:
3932: sub custom_roleprivs {
3933: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3934: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3935: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3936: if (&hostname($homsvr) ne '') {
1.567 raeburn 3937: my ($rdummy,$roledef)=
3938: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3939: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3940: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3941: if (defined($syspriv)) {
3942: $$allroles{'cm./'}.=':'.$syspriv;
3943: $$allroles{$spec.'./'}.=':'.$syspriv;
3944: }
3945: if ($tdomain ne '') {
3946: if (defined($dompriv)) {
3947: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3948: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3949: }
3950: if (($trest ne '') && (defined($coursepriv))) {
3951: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3952: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3953: }
3954: }
3955: }
3956: }
3957: }
3958:
1.678 raeburn 3959: sub group_roleprivs {
3960: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3961: my $access = 1;
3962: my $now = time;
3963: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3964: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3965: if ($access) {
1.811 albertel 3966: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3967: $$allgroups{$course}{$group} .=':'.$group_privs;
3968: }
3969: }
1.567 raeburn 3970:
3971: sub standard_roleprivs {
3972: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3973: if (defined($pr{$trole.':s'})) {
3974: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3975: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3976: }
3977: if ($tdomain ne '') {
3978: if (defined($pr{$trole.':d'})) {
3979: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3980: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3981: }
3982: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3983: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3984: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3985: }
3986: }
3987: }
3988:
3989: sub set_userprivs {
1.678 raeburn 3990: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3991: my $author=0;
3992: my $adv=0;
1.678 raeburn 3993: my %grouproles = ();
3994: if (keys(%{$allgroups}) > 0) {
1.1000 raeburn 3995: foreach my $role (keys(%{$allroles})) {
1.681 raeburn 3996: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3997: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3998: $trole = $1;
3999: $area = $2;
1.681 raeburn 4000: $sec = $3;
4001: $extendedarea = $area.$sec;
4002: if (exists($$allgroups{$area})) {
4003: foreach my $group (keys(%{$$allgroups{$area}})) {
4004: my $spec = $trole.'.'.$extendedarea;
4005: $grouproles{$spec.'.'.$area.'/'.$group} =
4006: $$allgroups{$area}{$group};
1.678 raeburn 4007: }
4008: }
4009: }
4010: }
4011: }
1.800 albertel 4012: foreach my $group (keys(%grouproles)) {
4013: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 4014: }
1.800 albertel 4015: foreach my $role (keys(%{$allroles})) {
4016: my %thesepriv;
1.941 raeburn 4017: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 4018: foreach my $item (split(/:/,$$allroles{$role})) {
4019: if ($item ne '') {
4020: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 4021: if ($restrictions eq '') {
4022: $thesepriv{$privilege}='F';
4023: } elsif ($thesepriv{$privilege} ne 'F') {
4024: $thesepriv{$privilege}.=$restrictions;
4025: }
4026: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
4027: }
4028: }
4029: my $thesestr='';
1.800 albertel 4030: foreach my $priv (keys(%thesepriv)) {
4031: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
4032: }
4033: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 4034: }
4035: return ($author,$adv);
4036: }
4037:
1.994 raeburn 4038: sub role_status {
1.1002 raeburn 4039: my ($rolekey,$then,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
1.994 raeburn 4040: my @pwhere = ();
4041: if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
4042: (undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
4043: unless (!defined($$role) || $$role eq '') {
4044: $$where=join('.',@pwhere);
4045: $$trolecode=$$role.'.'.$$where;
4046: ($$tstart,$$tend)=split(/\./,$env{$rolekey});
4047: $$tstatus='is';
4048: if ($$tstart && $$tstart>$then) {
4049: $$tstatus='future';
1.1002 raeburn 4050: if ($$tstart && $$tstart>$refresh) {
4051: if ($$tstart<$now) {
4052: if (($$where ne '') && ($$role ne '')) {
4053: my (%allroles,%allgroups,$group_privs);
4054: my %userroles = (
4055: 'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
4056: );
4057: my $spec=$$role.'.'.$$where;
4058: my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
4059: if ($$role eq 'gr') {
4060: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4061: $env{'user.name'})=@_;
4062: my ($trole) = split('_',$role,1);
4063: (undef,my $group_privs) = split(/\//,$trole);
4064: $group_privs = &unescape($group_privs);
4065: }
4066: if ($$role =~ /^cr\//) {
4067: &custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
4068: } elsif ($$role eq 'gr') {
4069: my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
4070: $env{'user.name'});
4071: my $trole = split('_',$rolehash{$$where.'_'.$$role},1);
4072: (undef,my $group_privs) = split(/\//,$trole);
4073: $group_privs = &unescape($group_privs);
4074: &group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
4075: } else {
4076: &standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
4077: }
4078: my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups);
4079: &appenv(\%userroles,[$$role,'cm']);
4080: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4081: $$tstatus = 'is';
4082: }
4083: }
4084: }
1.994 raeburn 4085: }
4086: if ($$tend) {
4087: if ($$tend<$then) {
4088: $$tstatus='expired';
4089: } elsif ($$tend<$now) {
4090: $$tstatus='will_not';
4091: }
4092: }
4093: }
4094: }
4095: }
4096:
4097: sub check_adhoc_privs {
1.1002 raeburn 4098: my ($cdom,$cnum,$then,$refresh,$now,$checkrole) = @_;
1.994 raeburn 4099: my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
4100: if ($env{$cckey}) {
4101: my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
1.1002 raeburn 4102: &role_status($cckey,$then,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
1.994 raeburn 4103: unless (($tstatus eq 'is') || ($tstatus eq 'will_not')) {
4104: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4105: }
4106: } else {
4107: &set_adhoc_privileges($cdom,$cnum,$checkrole);
4108: }
4109: }
4110:
4111: sub set_adhoc_privileges {
4112: # role can be cc or ca
4113: my ($dcdom,$pickedcourse,$role) = @_;
4114: my $area = '/'.$dcdom.'/'.$pickedcourse;
4115: my $spec = $role.'.'.$area;
4116: my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
4117: $env{'user.name'});
4118: my %ccrole = ();
4119: &standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
4120: my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
4121: &appenv(\%userroles,[$role,'cm']);
4122: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
4123: &appenv( {'request.role' => $spec,
4124: 'request.role.domain' => $dcdom,
4125: 'request.course.sec' => ''
4126: }
4127: );
4128: my $tadv=0;
4129: if (&allowed('adv') eq 'F') { $tadv=1; }
4130: &appenv({'request.role.adv' => $tadv});
4131: }
4132:
1.12 www 4133: # --------------------------------------------------------------- get interface
4134:
4135: sub get {
1.131 albertel 4136: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4137: my $items='';
1.800 albertel 4138: foreach my $item (@$storearr) {
4139: $items.=&escape($item).'&';
1.191 harris41 4140: }
1.12 www 4141: $items=~s/\&$//;
1.620 albertel 4142: if (!$udomain) { $udomain=$env{'user.domain'}; }
4143: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 4144: my $uhome=&homeserver($uname,$udomain);
4145:
1.133 albertel 4146: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4147: my @pairs=split(/\&/,$rep);
1.273 albertel 4148: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
4149: return @pairs;
4150: }
1.15 www 4151: my %returnhash=();
1.42 www 4152: my $i=0;
1.800 albertel 4153: foreach my $item (@$storearr) {
4154: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4155: $i++;
1.191 harris41 4156: }
1.15 www 4157: return %returnhash;
1.27 www 4158: }
4159:
4160: # --------------------------------------------------------------- del interface
4161:
4162: sub del {
1.133 albertel 4163: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 4164: my $items='';
1.800 albertel 4165: foreach my $item (@$storearr) {
4166: $items.=&escape($item).'&';
1.191 harris41 4167: }
1.984 neumanie 4168:
1.27 www 4169: $items=~s/\&$//;
1.620 albertel 4170: if (!$udomain) { $udomain=$env{'user.domain'}; }
4171: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4172: my $uhome=&homeserver($uname,$udomain);
4173: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 4174: }
4175:
4176: # -------------------------------------------------------------- dump interface
4177:
4178: sub dump {
1.755 albertel 4179: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
4180: if (!$udomain) { $udomain=$env{'user.domain'}; }
4181: if (!$uname) { $uname=$env{'user.name'}; }
4182: my $uhome=&homeserver($uname,$udomain);
4183: if ($regexp) {
4184: $regexp=&escape($regexp);
4185: } else {
4186: $regexp='.';
4187: }
4188: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4189: my @pairs=split(/\&/,$rep);
4190: my %returnhash=();
4191: foreach my $item (@pairs) {
4192: my ($key,$value)=split(/=/,$item,2);
4193: $key = &unescape($key);
4194: next if ($key =~ /^error: 2 /);
4195: $returnhash{$key}=&thaw_unescape($value);
4196: }
4197: return %returnhash;
1.407 www 4198: }
4199:
1.717 albertel 4200: # --------------------------------------------------------- dumpstore interface
4201:
4202: sub dumpstore {
4203: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 4204: if (!$udomain) { $udomain=$env{'user.domain'}; }
4205: if (!$uname) { $uname=$env{'user.name'}; }
4206: my $uhome=&homeserver($uname,$udomain);
4207: if ($regexp) {
4208: $regexp=&escape($regexp);
4209: } else {
4210: $regexp='.';
4211: }
4212: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
4213: my @pairs=split(/\&/,$rep);
4214: my %returnhash=();
4215: foreach my $item (@pairs) {
4216: my ($key,$value)=split(/=/,$item,2);
4217: next if ($key =~ /^error: 2 /);
4218: $returnhash{$key}=&thaw_unescape($value);
4219: }
4220: return %returnhash;
1.717 albertel 4221: }
4222:
1.407 www 4223: # -------------------------------------------------------------- keys interface
4224:
4225: sub getkeys {
4226: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 4227: if (!$udomain) { $udomain=$env{'user.domain'}; }
4228: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 4229: my $uhome=&homeserver($uname,$udomain);
4230: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
4231: my @keyarray=();
1.800 albertel 4232: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 4233: next if ($key =~ /^error: 2 /);
1.800 albertel 4234: push(@keyarray,&unescape($key));
1.407 www 4235: }
4236: return @keyarray;
1.318 matthew 4237: }
4238:
1.319 matthew 4239: # --------------------------------------------------------------- currentdump
4240: sub currentdump {
1.328 matthew 4241: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 4242: $courseid = $env{'request.course.id'} if (! defined($courseid));
4243: $sdom = $env{'user.domain'} if (! defined($sdom));
4244: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 4245: my $uhome = &homeserver($sname,$sdom);
4246: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 4247: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 4248: #
1.318 matthew 4249: my %returnhash=();
1.319 matthew 4250: #
4251: if ($rep eq "unknown_cmd") {
4252: # an old lond will not know currentdump
4253: # Do a dump and make it look like a currentdump
1.822 albertel 4254: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 4255: return if ($tmp[0] =~ /^(error:|no_such_host)/);
4256: my %hash = @tmp;
4257: @tmp=();
1.424 matthew 4258: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 4259: } else {
4260: my @pairs=split(/\&/,$rep);
1.800 albertel 4261: foreach my $pair (@pairs) {
4262: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 4263: my ($symb,$param) = split(/:/,$key);
4264: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 4265: &thaw_unescape($value);
1.319 matthew 4266: }
1.191 harris41 4267: }
1.12 www 4268: return %returnhash;
1.424 matthew 4269: }
4270:
4271: sub convert_dump_to_currentdump{
4272: my %hash = %{shift()};
4273: my %returnhash;
4274: # Code ripped from lond, essentially. The only difference
4275: # here is the unescaping done by lonnet::dump(). Conceivably
4276: # we might run in to problems with parameter names =~ /^v\./
4277: while (my ($key,$value) = each(%hash)) {
4278: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 4279: $symb = &unescape($symb);
4280: $param = &unescape($param);
1.424 matthew 4281: next if ($v eq 'version' || $symb eq 'keys');
4282: next if (exists($returnhash{$symb}) &&
4283: exists($returnhash{$symb}->{$param}) &&
4284: $returnhash{$symb}->{'v.'.$param} > $v);
4285: $returnhash{$symb}->{$param}=$value;
4286: $returnhash{$symb}->{'v.'.$param}=$v;
4287: }
4288: #
4289: # Remove all of the keys in the hashes which keep track of
4290: # the version of the parameter.
4291: while (my ($symb,$param_hash) = each(%returnhash)) {
4292: # use a foreach because we are going to delete from the hash.
4293: foreach my $key (keys(%$param_hash)) {
4294: delete($param_hash->{$key}) if ($key =~ /^v\./);
4295: }
4296: }
4297: return \%returnhash;
1.12 www 4298: }
4299:
1.627 albertel 4300: # ------------------------------------------------------ critical inc interface
4301:
4302: sub cinc {
4303: return &inc(@_,'critical');
4304: }
4305:
1.449 matthew 4306: # --------------------------------------------------------------- inc interface
4307:
4308: sub inc {
1.627 albertel 4309: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 4310: if (!$udomain) { $udomain=$env{'user.domain'}; }
4311: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 4312: my $uhome=&homeserver($uname,$udomain);
4313: my $items='';
4314: if (! ref($store)) {
4315: # got a single value, so use that instead
4316: $items = &escape($store).'=&';
4317: } elsif (ref($store) eq 'SCALAR') {
4318: $items = &escape($$store).'=&';
4319: } elsif (ref($store) eq 'ARRAY') {
4320: $items = join('=&',map {&escape($_);} @{$store});
4321: } elsif (ref($store) eq 'HASH') {
4322: while (my($key,$value) = each(%{$store})) {
4323: $items.= &escape($key).'='.&escape($value).'&';
4324: }
4325: }
4326: $items=~s/\&$//;
1.627 albertel 4327: if ($critical) {
4328: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
4329: } else {
4330: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
4331: }
1.449 matthew 4332: }
4333:
1.12 www 4334: # --------------------------------------------------------------- put interface
4335:
4336: sub put {
1.134 albertel 4337: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4338: if (!$udomain) { $udomain=$env{'user.domain'}; }
4339: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4340: my $uhome=&homeserver($uname,$udomain);
1.12 www 4341: my $items='';
1.800 albertel 4342: foreach my $item (keys(%$storehash)) {
4343: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4344: }
1.12 www 4345: $items=~s/\&$//;
1.134 albertel 4346: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 4347: }
4348:
1.631 albertel 4349: # ------------------------------------------------------------ newput interface
4350:
4351: sub newput {
4352: my ($namespace,$storehash,$udomain,$uname)=@_;
4353: if (!$udomain) { $udomain=$env{'user.domain'}; }
4354: if (!$uname) { $uname=$env{'user.name'}; }
4355: my $uhome=&homeserver($uname,$udomain);
4356: my $items='';
4357: foreach my $key (keys(%$storehash)) {
4358: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
4359: }
4360: $items=~s/\&$//;
4361: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
4362: }
4363:
4364: # --------------------------------------------------------- putstore interface
4365:
1.524 raeburn 4366: sub putstore {
1.715 albertel 4367: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 4368: if (!$udomain) { $udomain=$env{'user.domain'}; }
4369: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 4370: my $uhome=&homeserver($uname,$udomain);
4371: my $items='';
1.715 albertel 4372: foreach my $key (keys(%$storehash)) {
4373: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 4374: }
1.715 albertel 4375: $items=~s/\&$//;
1.716 albertel 4376: my $esc_symb=&escape($symb);
4377: my $esc_v=&escape($version);
1.715 albertel 4378: my $reply =
1.716 albertel 4379: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 4380: $uhome);
4381: if ($reply eq 'unknown_cmd') {
1.716 albertel 4382: # gfall back to way things use to be done
1.715 albertel 4383: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
4384: $uname);
1.524 raeburn 4385: }
1.715 albertel 4386: return $reply;
4387: }
4388:
4389: sub old_putstore {
1.716 albertel 4390: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
4391: if (!$udomain) { $udomain=$env{'user.domain'}; }
4392: if (!$uname) { $uname=$env{'user.name'}; }
4393: my $uhome=&homeserver($uname,$udomain);
4394: my %newstorehash;
1.800 albertel 4395: foreach my $item (keys(%$storehash)) {
4396: my $key = $version.':'.&escape($symb).':'.$item;
4397: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 4398: }
4399: my $items='';
4400: my %allitems = ();
1.800 albertel 4401: foreach my $item (keys(%newstorehash)) {
4402: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4403: my $key = $1.':keys:'.$2;
4404: $allitems{$key} .= $3.':';
4405: }
1.800 albertel 4406: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4407: }
1.800 albertel 4408: foreach my $item (keys(%allitems)) {
4409: $allitems{$item} =~ s/\:$//;
4410: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4411: }
4412: $items=~s/\&$//;
4413: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4414: }
4415:
1.47 www 4416: # ------------------------------------------------------ critical put interface
4417:
4418: sub cput {
1.134 albertel 4419: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4420: if (!$udomain) { $udomain=$env{'user.domain'}; }
4421: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4422: my $uhome=&homeserver($uname,$udomain);
1.47 www 4423: my $items='';
1.800 albertel 4424: foreach my $item (keys(%$storehash)) {
4425: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4426: }
1.47 www 4427: $items=~s/\&$//;
1.134 albertel 4428: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4429: }
4430:
4431: # -------------------------------------------------------------- eget interface
4432:
4433: sub eget {
1.133 albertel 4434: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4435: my $items='';
1.800 albertel 4436: foreach my $item (@$storearr) {
4437: $items.=&escape($item).'&';
1.191 harris41 4438: }
1.12 www 4439: $items=~s/\&$//;
1.620 albertel 4440: if (!$udomain) { $udomain=$env{'user.domain'}; }
4441: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4442: my $uhome=&homeserver($uname,$udomain);
4443: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4444: my @pairs=split(/\&/,$rep);
4445: my %returnhash=();
1.42 www 4446: my $i=0;
1.800 albertel 4447: foreach my $item (@$storearr) {
4448: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4449: $i++;
1.191 harris41 4450: }
1.12 www 4451: return %returnhash;
4452: }
4453:
1.667 albertel 4454: # ------------------------------------------------------------ tmpput interface
4455: sub tmpput {
1.802 raeburn 4456: my ($storehash,$server,$context)=@_;
1.667 albertel 4457: my $items='';
1.800 albertel 4458: foreach my $item (keys(%$storehash)) {
4459: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4460: }
4461: $items=~s/\&$//;
1.802 raeburn 4462: if (defined($context)) {
4463: $items .= ':'.&escape($context);
4464: }
1.667 albertel 4465: return &reply("tmpput:$items",$server);
4466: }
4467:
4468: # ------------------------------------------------------------ tmpget interface
4469: sub tmpget {
1.688 albertel 4470: my ($token,$server)=@_;
4471: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4472: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4473: my %returnhash;
4474: foreach my $item (split(/\&/,$rep)) {
4475: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4476: next if ($key =~ /^error: 2 /);
1.667 albertel 4477: $returnhash{&unescape($key)}=&thaw_unescape($value);
4478: }
4479: return %returnhash;
4480: }
4481:
1.688 albertel 4482: # ------------------------------------------------------------ tmpget interface
4483: sub tmpdel {
4484: my ($token,$server)=@_;
4485: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4486: return &reply("tmpdel:$token",$server);
4487: }
4488:
1.765 albertel 4489: # -------------------------------------------------- portfolio access checking
4490:
4491: sub portfolio_access {
1.766 albertel 4492: my ($requrl) = @_;
1.765 albertel 4493: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4494: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4495: if ($result) {
4496: my %setters;
4497: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4498: my ($startblock,$endblock) =
4499: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4500: if ($startblock && $endblock) {
4501: return 'B';
4502: }
4503: } else {
4504: my ($startblock,$endblock) =
4505: &Apache::loncommon::blockcheck(\%setters,'port');
4506: if ($startblock && $endblock) {
4507: return 'B';
4508: }
4509: }
4510: }
1.765 albertel 4511: if ($result eq 'ok') {
1.766 albertel 4512: return 'F';
1.765 albertel 4513: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4514: return 'A';
1.765 albertel 4515: }
1.766 albertel 4516: return '';
1.765 albertel 4517: }
4518:
4519: sub get_portfolio_access {
1.767 albertel 4520: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4521:
4522: if (!ref($access_hash)) {
4523: my $current_perms = &get_portfile_permissions($udom,$unum);
4524: my %access_controls = &get_access_controls($current_perms,$group,
4525: $file_name);
4526: $access_hash = $access_controls{$file_name};
4527: }
4528:
1.765 albertel 4529: my ($public,$guest,@domains,@users,@courses,@groups);
4530: my $now = time;
4531: if (ref($access_hash) eq 'HASH') {
4532: foreach my $key (keys(%{$access_hash})) {
4533: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4534: if ($start > $now) {
4535: next;
4536: }
4537: if ($end && $end<$now) {
4538: next;
4539: }
4540: if ($scope eq 'public') {
4541: $public = $key;
4542: last;
4543: } elsif ($scope eq 'guest') {
4544: $guest = $key;
4545: } elsif ($scope eq 'domains') {
4546: push(@domains,$key);
4547: } elsif ($scope eq 'users') {
4548: push(@users,$key);
4549: } elsif ($scope eq 'course') {
4550: push(@courses,$key);
4551: } elsif ($scope eq 'group') {
4552: push(@groups,$key);
4553: }
4554: }
4555: if ($public) {
4556: return 'ok';
4557: }
4558: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4559: if ($guest) {
4560: return $guest;
4561: }
4562: } else {
4563: if (@domains > 0) {
4564: foreach my $domkey (@domains) {
4565: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4566: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4567: return 'ok';
4568: }
4569: }
4570: }
4571: }
4572: if (@users > 0) {
4573: foreach my $userkey (@users) {
1.865 raeburn 4574: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4575: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4576: if (ref($item) eq 'HASH') {
4577: if (($item->{'uname'} eq $env{'user.name'}) &&
4578: ($item->{'udom'} eq $env{'user.domain'})) {
4579: return 'ok';
4580: }
4581: }
4582: }
4583: }
1.765 albertel 4584: }
4585: }
4586: my %roleshash;
4587: my @courses_and_groups = @courses;
4588: push(@courses_and_groups,@groups);
4589: if (@courses_and_groups > 0) {
4590: my (%allgroups,%allroles);
4591: my ($start,$end,$role,$sec,$group);
4592: foreach my $envkey (%env) {
1.811 albertel 4593: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4594: my $cid = $2.'_'.$3;
4595: if ($1 eq 'gr') {
4596: $group = $4;
4597: $allgroups{$cid}{$group} = $env{$envkey};
4598: } else {
4599: if ($4 eq '') {
4600: $sec = 'none';
4601: } else {
4602: $sec = $4;
4603: }
4604: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4605: }
1.811 albertel 4606: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4607: my $cid = $2.'_'.$3;
4608: if ($4 eq '') {
4609: $sec = 'none';
4610: } else {
4611: $sec = $4;
4612: }
4613: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4614: }
4615: }
4616: if (keys(%allroles) == 0) {
4617: return;
4618: }
4619: foreach my $key (@courses_and_groups) {
4620: my %content = %{$$access_hash{$key}};
4621: my $cnum = $content{'number'};
4622: my $cdom = $content{'domain'};
4623: my $cid = $cdom.'_'.$cnum;
4624: if (!exists($allroles{$cid})) {
4625: next;
4626: }
4627: foreach my $role_id (keys(%{$content{'roles'}})) {
4628: my @sections = @{$content{'roles'}{$role_id}{'section'}};
4629: my @groups = @{$content{'roles'}{$role_id}{'group'}};
4630: my @status = @{$content{'roles'}{$role_id}{'access'}};
4631: my @roles = @{$content{'roles'}{$role_id}{'role'}};
4632: foreach my $role (keys(%{$allroles{$cid}})) {
4633: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
4634: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
4635: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
4636: if (grep/^all$/,@sections) {
4637: return 'ok';
4638: } else {
4639: if (grep/^$sec$/,@sections) {
4640: return 'ok';
4641: }
4642: }
4643: }
4644: }
4645: if (keys(%{$allgroups{$cid}}) == 0) {
4646: if (grep/^none$/,@groups) {
4647: return 'ok';
4648: }
4649: } else {
4650: if (grep/^all$/,@groups) {
4651: return 'ok';
4652: }
4653: foreach my $group (keys(%{$allgroups{$cid}})) {
4654: if (grep/^$group$/,@groups) {
4655: return 'ok';
4656: }
4657: }
4658: }
4659: }
4660: }
4661: }
4662: }
4663: }
4664: if ($guest) {
4665: return $guest;
4666: }
4667: }
4668: }
4669: return;
4670: }
4671:
4672: sub course_group_datechecker {
4673: my ($dates,$now,$status) = @_;
4674: my ($start,$end) = split(/\./,$dates);
4675: if (!$start && !$end) {
4676: return 'ok';
4677: }
4678: if (grep/^active$/,@{$status}) {
4679: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
4680: return 'ok';
4681: }
4682: }
4683: if (grep/^previous$/,@{$status}) {
4684: if ($end > $now ) {
4685: return 'ok';
4686: }
4687: }
4688: if (grep/^future$/,@{$status}) {
4689: if ($start > $now) {
4690: return 'ok';
4691: }
4692: }
4693: return;
4694: }
4695:
4696: sub parse_portfolio_url {
4697: my ($url) = @_;
4698:
4699: my ($type,$udom,$unum,$group,$file_name);
4700:
1.823 albertel 4701: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 4702: $type = 1;
4703: $udom = $1;
4704: $unum = $2;
4705: $file_name = $3;
1.823 albertel 4706: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 4707: $type = 2;
4708: $udom = $1;
4709: $unum = $2;
4710: $group = $3;
4711: $file_name = $3.'/'.$4;
4712: }
4713: if (wantarray) {
4714: return ($type,$udom,$unum,$file_name,$group);
4715: }
4716: return $type;
4717: }
4718:
4719: sub is_portfolio_url {
4720: my ($url) = @_;
4721: return scalar(&parse_portfolio_url($url));
4722: }
4723:
1.798 raeburn 4724: sub is_portfolio_file {
4725: my ($file) = @_;
1.820 raeburn 4726: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 4727: return 1;
4728: }
4729: return;
4730: }
4731:
1.976 raeburn 4732: sub usertools_access {
1.985 raeburn 4733: my ($uname,$udom,$tool,$action,$context) = @_;
4734: my ($access,%tools);
4735: if ($context eq '') {
4736: $context = 'tools';
4737: }
4738: if ($context eq 'requestcourses') {
4739: %tools = (
4740: official => 1,
4741: unofficial => 1,
1.1006 raeburn 4742: community => 1,
1.985 raeburn 4743: );
4744: } else {
4745: %tools = (
4746: aboutme => 1,
4747: blog => 1,
4748: portfolio => 1,
4749: );
4750: }
1.976 raeburn 4751: return if (!defined($tools{$tool}));
4752:
4753: if ((!defined($udom)) || (!defined($uname))) {
4754: $udom = $env{'user.domain'};
4755: $uname = $env{'user.name'};
4756: }
4757:
1.978 raeburn 4758: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
4759: if ($action ne 'reload') {
1.985 raeburn 4760: if ($context eq 'requestcourses') {
4761: return $env{'environment.canrequest.'.$tool};
4762: } else {
4763: return $env{'environment.availabletools.'.$tool};
4764: }
4765: }
1.976 raeburn 4766: }
4767:
4768: my ($toolstatus,$inststatus);
4769:
1.985 raeburn 4770: if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
4771: ($action ne 'reload')) {
4772: $toolstatus = $env{'environment.'.$context.'.'.$tool};
1.976 raeburn 4773: $inststatus = $env{'environment.inststatus'};
4774: } else {
1.985 raeburn 4775: my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool);
4776: $toolstatus = $userenv{$context.'.'.$tool};
1.976 raeburn 4777: $inststatus = $userenv{'inststatus'};
4778: }
4779:
4780: if ($toolstatus ne '') {
4781: if ($toolstatus) {
4782: $access = 1;
4783: } else {
4784: $access = 0;
4785: }
4786: return $access;
4787: }
4788:
4789: my $is_adv = &is_advanced_user($udom,$uname);
4790: my %domdef = &get_domain_defaults($udom);
4791: if (ref($domdef{$tool}) eq 'HASH') {
4792: if ($is_adv) {
4793: if ($domdef{$tool}{'_LC_adv'} ne '') {
4794: if ($domdef{$tool}{'_LC_adv'}) {
4795: $access = 1;
4796: } else {
4797: $access = 0;
4798: }
4799: return $access;
4800: }
4801: }
4802: if ($inststatus ne '') {
4803: my ($hasaccess,$hasnoaccess);
4804: foreach my $affiliation (split(/:/,$inststatus)) {
4805: if ($domdef{$tool}{$affiliation} ne '') {
4806: if ($domdef{$tool}{$affiliation}) {
4807: $hasaccess = 1;
4808: } else {
4809: $hasnoaccess = 1;
4810: }
4811: }
4812: }
4813: if ($hasaccess || $hasnoaccess) {
4814: if ($hasaccess) {
4815: $access = 1;
4816: } elsif ($hasnoaccess) {
4817: $access = 0;
4818: }
4819: return $access;
4820: }
4821: } else {
4822: if ($domdef{$tool}{'default'} ne '') {
4823: if ($domdef{$tool}{'default'}) {
4824: $access = 1;
4825: } elsif ($domdef{$tool}{'default'} == 0) {
4826: $access = 0;
4827: }
4828: return $access;
4829: }
4830: }
4831: } else {
1.985 raeburn 4832: if ($context eq 'tools') {
4833: $access = 1;
4834: } else {
4835: $access = 0;
4836: }
1.976 raeburn 4837: return $access;
4838: }
4839: }
4840:
4841: sub is_advanced_user {
4842: my ($udom,$uname) = @_;
4843: my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
4844: my %allroles;
4845: my $is_adv;
4846: foreach my $role (keys(%roleshash)) {
4847: my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
4848: my $area = '/'.$tdomain.'/'.$trest;
4849: if ($sec ne '') {
4850: $area .= '/'.$sec;
4851: }
4852: if (($area ne '') && ($trole ne '')) {
4853: my $spec=$trole.'.'.$area;
4854: if ($trole =~ /^cr\//) {
4855: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
4856: } elsif ($trole ne 'gr') {
4857: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
4858: }
4859: }
4860: }
4861: foreach my $role (keys(%allroles)) {
4862: last if ($is_adv);
4863: foreach my $item (split(/:/,$allroles{$role})) {
4864: if ($item ne '') {
4865: my ($privilege,$restrictions)=split(/&/,$item);
4866: if ($privilege eq 'adv') {
4867: $is_adv = 1;
4868: last;
4869: }
4870: }
4871: }
4872: }
4873: return $is_adv;
4874: }
1.798 raeburn 4875:
1.341 www 4876: # ---------------------------------------------- Custom access rule evaluation
4877:
4878: sub customaccess {
4879: my ($priv,$uri)=@_;
1.807 albertel 4880: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 4881: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 4882: $udom = &LONCAPA::clean_domain($udom);
4883: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 4884: my $access=0;
1.800 albertel 4885: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 4886: my ($effect,$realm,$role,$type)=split(/\:/,$right);
4887: if ($type eq 'user') {
4888: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 4889: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 4890: if ($tdom) {
4891: if ($tdom ne $env{'user.domain'}) { next; }
4892: }
1.896 albertel 4893: if ($tuname) {
4894: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 4895: }
4896: $access=($effect eq 'allow');
4897: last;
4898: }
4899: } else {
4900: if ($role) {
4901: if ($role ne $urole) { next; }
4902: }
4903: foreach my $scope (split(/\s*\,\s*/,$realm)) {
4904: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
4905: if ($tdom) {
4906: if ($tdom ne $udom) { next; }
4907: }
4908: if ($tcrs) {
4909: if ($tcrs ne $ucrs) { next; }
4910: }
4911: if ($tsec) {
4912: if ($tsec ne $usec) { next; }
4913: }
4914: $access=($effect eq 'allow');
4915: last;
4916: }
4917: if ($realm eq '' && $role eq '') {
4918: $access=($effect eq 'allow');
4919: }
1.402 bowersj2 4920: }
1.341 www 4921: }
4922: return $access;
4923: }
4924:
1.103 harris41 4925: # ------------------------------------------------- Check for a user privilege
1.12 www 4926:
4927: sub allowed {
1.810 raeburn 4928: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 4929: my $ver_orguri=$uri;
1.439 www 4930: $uri=&deversion($uri);
1.152 www 4931: my $orguri=$uri;
1.52 www 4932: $uri=&declutter($uri);
1.809 raeburn 4933:
1.810 raeburn 4934: if ($priv eq 'evb') {
4935: # Evade communication block restrictions for specified role in a course
4936: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
4937: return $1;
4938: } else {
4939: return;
4940: }
4941: }
4942:
1.620 albertel 4943: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 4944: # Free bre access to adm and meta resources
1.775 albertel 4945: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 4946: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
4947: && ($priv eq 'bre')) {
1.14 www 4948: return 'F';
1.159 www 4949: }
4950:
1.545 banghart 4951: # Free bre access to user's own portfolio contents
1.714 raeburn 4952: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 4953: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 4954: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 4955: my %setters;
4956: my ($startblock,$endblock) =
4957: &Apache::loncommon::blockcheck(\%setters,'port');
4958: if ($startblock && $endblock) {
4959: return 'B';
4960: } else {
4961: return 'F';
4962: }
1.545 banghart 4963: }
4964:
1.762 raeburn 4965: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 4966: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
4967: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
4968: if (exists($env{'request.course.id'})) {
4969: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4970: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4971: if (($domain eq $cdom) && ($name eq $cnum)) {
4972: my $courseprivid=$env{'request.course.id'};
4973: $courseprivid=~s/\_/\//;
4974: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
4975: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
4976: return $1;
1.762 raeburn 4977: } else {
4978: if ($env{'request.course.sec'}) {
4979: $courseprivid.='/'.$env{'request.course.sec'};
4980: }
4981: if ($env{'user.priv.'.$env{'request.role'}.'./'.
4982: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
4983: return $2;
4984: }
1.714 raeburn 4985: }
4986: }
4987: }
4988: }
4989:
1.159 www 4990: # Free bre to public access
4991:
4992: if ($priv eq 'bre') {
1.238 www 4993: my $copyright=&metadata($uri,'copyright');
1.620 albertel 4994: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 4995: return 'F';
4996: }
1.238 www 4997: if ($copyright eq 'priv') {
4998: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4999: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 5000: return '';
5001: }
5002: }
5003: if ($copyright eq 'domain') {
5004: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 5005: unless (($env{'user.domain'} eq $1) ||
5006: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 5007: return '';
5008: }
1.262 matthew 5009: }
1.620 albertel 5010: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 5011: # Library role, so allow browsing of resources in this domain.
5012: return 'F';
1.238 www 5013: }
1.341 www 5014: if ($copyright eq 'custom') {
5015: unless (&customaccess($priv,$uri)) { return ''; }
5016: }
1.14 www 5017: }
1.264 matthew 5018: # Domain coordinator is trying to create a course
1.620 albertel 5019: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 5020: # uri is the requested domain in this case.
5021: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 5022: # a role of dc for the domain in question.
1.620 albertel 5023: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 5024: }
1.29 www 5025:
1.52 www 5026: my $thisallowed='';
5027: my $statecond=0;
5028: my $courseprivid='';
5029:
5030: # Course
5031:
1.620 albertel 5032: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5033: $thisallowed.=$1;
5034: }
1.29 www 5035:
1.52 www 5036: # Domain
5037:
1.620 albertel 5038: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 5039: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 5040: $thisallowed.=$1;
5041: }
1.52 www 5042:
5043: # Course: uri itself is a course
1.66 www 5044: my $courseuri=$uri;
5045: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 5046: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 5047:
1.620 albertel 5048: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 5049: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 5050: $thisallowed.=$1;
5051: }
1.29 www 5052:
1.665 albertel 5053: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 5054: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 5055: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 5056: $thisallowed='';
1.671 raeburn 5057: my ($match)=&is_on_map($uri);
5058: if ($match) {
5059: if ($env{'user.priv.'.$env{'request.role'}.'./'}
5060: =~/\Q$priv\E\&([^\:]*)/) {
5061: $thisallowed.=$1;
5062: }
5063: } else {
1.705 albertel 5064: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 5065: if ($refuri) {
5066: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 5067: $thisallowed='F';
1.671 raeburn 5068: } else {
5069: $refuri=&declutter($refuri);
5070: my ($match) = &is_on_map($refuri);
5071: if ($match) {
5072: $thisallowed='F';
5073: }
1.669 raeburn 5074: }
1.671 raeburn 5075: }
5076: }
1.314 www 5077: }
1.492 albertel 5078:
1.766 albertel 5079: if ($priv eq 'bre'
5080: && $thisallowed ne 'F'
5081: && $thisallowed ne '2'
5082: && &is_portfolio_url($uri)) {
5083: $thisallowed = &portfolio_access($uri);
5084: }
5085:
1.52 www 5086: # Full access at system, domain or course-wide level? Exit.
1.29 www 5087: if ($thisallowed=~/F/) {
5088: return 'F';
5089: }
5090:
1.52 www 5091: # If this is generating or modifying users, exit with special codes
1.29 www 5092:
1.643 www 5093: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
5094: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 5095: my ($audom,$auname)=split('/',$uri);
1.643 www 5096: # no author name given, so this just checks on the general right to make a co-author in this domain
5097: unless ($auname) { return $thisallowed; }
5098: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 5099: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
5100: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
5101: ($audom ne $env{'request.role.domain'}))) { return ''; }
5102: }
1.52 www 5103: return $thisallowed;
5104: }
5105: #
1.103 harris41 5106: # Gathered so far: system, domain and course wide privileges
1.52 www 5107: #
5108: # Course: See if uri or referer is an individual resource that is part of
5109: # the course
5110:
1.620 albertel 5111: if ($env{'request.course.id'}) {
1.232 www 5112:
1.620 albertel 5113: $courseprivid=$env{'request.course.id'};
5114: if ($env{'request.course.sec'}) {
5115: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 5116: }
5117: $courseprivid=~s/\_/\//;
5118: my $checkreferer=1;
1.232 www 5119: my ($match,$cond)=&is_on_map($uri);
5120: if ($match) {
5121: $statecond=$cond;
1.620 albertel 5122: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5123: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5124: $thisallowed.=$1;
5125: $checkreferer=0;
5126: }
1.29 www 5127: }
1.83 www 5128:
1.148 www 5129: if ($checkreferer) {
1.620 albertel 5130: my $refuri=$env{'httpref.'.$orguri};
1.148 www 5131: unless ($refuri) {
1.800 albertel 5132: foreach my $key (keys(%env)) {
5133: if ($key=~/^httpref\..*\*/) {
5134: my $pattern=$key;
1.156 www 5135: $pattern=~s/^httpref\.\/res\///;
1.148 www 5136: $pattern=~s/\*/\[\^\/\]\+/g;
5137: $pattern=~s/\//\\\//g;
1.152 www 5138: if ($orguri=~/$pattern/) {
1.800 albertel 5139: $refuri=$env{$key};
1.148 www 5140: }
5141: }
1.191 harris41 5142: }
1.148 www 5143: }
1.232 www 5144:
1.148 www 5145: if ($refuri) {
1.152 www 5146: $refuri=&declutter($refuri);
1.232 www 5147: my ($match,$cond)=&is_on_map($refuri);
5148: if ($match) {
5149: my $refstatecond=$cond;
1.620 albertel 5150: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 5151: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 5152: $thisallowed.=$1;
1.53 www 5153: $uri=$refuri;
5154: $statecond=$refstatecond;
1.52 www 5155: }
5156: }
1.148 www 5157: }
1.29 www 5158: }
1.52 www 5159: }
1.29 www 5160:
1.52 www 5161: #
1.103 harris41 5162: # Gathered now: all privileges that could apply, and condition number
1.52 www 5163: #
5164: #
5165: # Full or no access?
5166: #
1.29 www 5167:
1.52 www 5168: if ($thisallowed=~/F/) {
5169: return 'F';
5170: }
1.29 www 5171:
1.52 www 5172: unless ($thisallowed) {
5173: return '';
5174: }
1.29 www 5175:
1.52 www 5176: # Restrictions exist, deal with them
5177: #
5178: # C:according to course preferences
5179: # R:according to resource settings
5180: # L:unless locked
5181: # X:according to user session state
5182: #
5183:
5184: # Possibly locked functionality, check all courses
1.54 www 5185: # Locks might take effect only after 10 minutes cache expiration for other
5186: # courses, and 2 minutes for current course
1.52 www 5187:
5188: my $envkey;
5189: if ($thisallowed=~/L/) {
1.1000 raeburn 5190: foreach $envkey (keys(%env)) {
1.54 www 5191: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
5192: my $courseid=$2;
5193: my $roleid=$1.'.'.$2;
1.92 www 5194: $courseid=~s/^\///;
1.54 www 5195: my $expiretime=600;
1.620 albertel 5196: if ($env{'request.role'} eq $roleid) {
1.54 www 5197: $expiretime=120;
5198: }
5199: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
5200: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 5201: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 5202: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 5203: }
1.620 albertel 5204: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
5205: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
5206: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
5207: &log($env{'user.domain'},$env{'user.name'},
5208: $env{'user.home'},
1.57 www 5209: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 5210: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5211: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5212: return '';
5213: }
5214: }
1.620 albertel 5215: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
5216: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
5217: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
5218: &log($env{'user.domain'},$env{'user.name'},
5219: $env{'user.home'},
1.57 www 5220: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 5221: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 5222: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 5223: return '';
5224: }
5225: }
5226: }
1.29 www 5227: }
1.52 www 5228: }
5229:
5230: #
5231: # Rest of the restrictions depend on selected course
5232: #
5233:
1.620 albertel 5234: unless ($env{'request.course.id'}) {
1.766 albertel 5235: if ($thisallowed eq 'A') {
5236: return 'A';
1.814 raeburn 5237: } elsif ($thisallowed eq 'B') {
5238: return 'B';
1.766 albertel 5239: } else {
5240: return '1';
5241: }
1.52 www 5242: }
1.29 www 5243:
1.52 www 5244: #
5245: # Now user is definitely in a course
5246: #
1.53 www 5247:
5248:
5249: # Course preferences
5250:
5251: if ($thisallowed=~/C/) {
1.620 albertel 5252: my $rolecode=(split(/\./,$env{'request.role'}))[0];
5253: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
5254: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 5255: =~/\Q$rolecode\E/) {
1.689 albertel 5256: if ($priv ne 'pch') {
5257: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5258: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
5259: $env{'request.course.id'});
5260: }
1.237 www 5261: return '';
5262: }
5263:
1.620 albertel 5264: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 5265: =~/\Q$unamedom\E/) {
1.689 albertel 5266: if ($priv ne 'pch') {
5267: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
5268: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
5269: $env{'request.course.id'});
5270: }
1.54 www 5271: return '';
5272: }
1.53 www 5273: }
5274:
5275: # Resource preferences
5276:
5277: if ($thisallowed=~/R/) {
1.620 albertel 5278: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 5279: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 5280: if ($priv ne 'pch') {
5281: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
5282: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
5283: }
5284: return '';
1.54 www 5285: }
1.53 www 5286: }
1.30 www 5287:
1.246 www 5288: # Restricted by state or randomout?
1.30 www 5289:
1.52 www 5290: if ($thisallowed=~/X/) {
1.620 albertel 5291: if ($env{'acc.randomout'}) {
1.579 albertel 5292: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 5293: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 5294: return '';
5295: }
1.247 www 5296: }
5297: if (&condval($statecond)) {
1.52 www 5298: return '2';
5299: } else {
5300: return '';
5301: }
5302: }
1.30 www 5303:
1.766 albertel 5304: if ($thisallowed eq 'A') {
5305: return 'A';
1.814 raeburn 5306: } elsif ($thisallowed eq 'B') {
5307: return 'B';
1.766 albertel 5308: }
1.52 www 5309: return 'F';
1.232 www 5310: }
5311:
1.710 albertel 5312: sub split_uri_for_cond {
5313: my $uri=&deversion(&declutter(shift));
5314: my @uriparts=split(/\//,$uri);
5315: my $filename=pop(@uriparts);
5316: my $pathname=join('/',@uriparts);
5317: return ($pathname,$filename);
5318: }
1.232 www 5319: # --------------------------------------------------- Is a resource on the map?
5320:
5321: sub is_on_map {
1.710 albertel 5322: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 5323: #Trying to find the conditional for the file
1.620 albertel 5324: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 5325: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 5326: if ($match) {
1.289 bowersj2 5327: return (1,$1);
5328: } else {
1.434 www 5329: return (0,0);
1.289 bowersj2 5330: }
1.12 www 5331: }
5332:
1.427 www 5333: # --------------------------------------------------------- Get symb from alias
5334:
5335: sub get_symb_from_alias {
5336: my $symb=shift;
5337: my ($map,$resid,$url)=&decode_symb($symb);
5338: # Already is a symb
5339: if ($url) { return $symb; }
5340: # Must be an alias
5341: my $aliassymb='';
5342: my %bighash;
1.620 albertel 5343: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 5344: &GDBM_READER(),0640)) {
5345: my $rid=$bighash{'mapalias_'.$symb};
5346: if ($rid) {
5347: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 5348: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
5349: $resid,$bighash{'src_'.$rid});
1.427 www 5350: }
5351: untie %bighash;
5352: }
5353: return $aliassymb;
5354: }
5355:
1.12 www 5356: # ----------------------------------------------------------------- Define Role
5357:
5358: sub definerole {
5359: if (allowed('mcr','/')) {
5360: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 5361: foreach my $role (split(':',$sysrole)) {
5362: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5363: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
5364: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
5365: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5366: return "refused:s:$crole&$cqual";
5367: }
5368: }
1.191 harris41 5369: }
1.800 albertel 5370: foreach my $role (split(':',$domrole)) {
5371: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5372: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
5373: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
5374: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 5375: return "refused:d:$crole&$cqual";
5376: }
5377: }
1.191 harris41 5378: }
1.800 albertel 5379: foreach my $role (split(':',$courole)) {
5380: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 5381: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
5382: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
5383: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 5384: return "refused:c:$crole&$cqual";
5385: }
5386: }
1.191 harris41 5387: }
1.620 albertel 5388: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
5389: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5390: "rolesdef_$rolename=".
5391: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 5392: return reply($command,$env{'user.home'});
1.12 www 5393: } else {
5394: return 'refused';
5395: }
1.105 harris41 5396: }
5397:
5398: # ---------------- Make a metadata query against the network of library servers
5399:
5400: sub metadata_query {
1.244 matthew 5401: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 5402: my %rhash;
1.845 albertel 5403: my %libserv = &all_library();
1.244 matthew 5404: my @server_list = (defined($server_array) ? @$server_array
5405: : keys(%libserv) );
5406: for my $server (@server_list) {
1.118 harris41 5407: unless ($custom or $customshow) {
5408: my $reply=&reply("querysend:".&escape($query),$server);
5409: $rhash{$server}=$reply;
5410: }
5411: else {
5412: my $reply=&reply("querysend:".&escape($query).':'.
5413: &escape($custom).':'.&escape($customshow),
5414: $server);
5415: $rhash{$server}=$reply;
5416: }
1.112 harris41 5417: }
1.118 harris41 5418: return \%rhash;
1.240 www 5419: }
5420:
5421: # ----------------------------------------- Send log queries and wait for reply
5422:
5423: sub log_query {
5424: my ($uname,$udom,$query,%filters)=@_;
5425: my $uhome=&homeserver($uname,$udom);
5426: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 5427: my $uhost=&hostname($uhome);
1.800 albertel 5428: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 5429: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
5430: $uhome);
1.479 albertel 5431: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 5432: return get_query_reply($queryid);
5433: }
5434:
1.818 raeburn 5435: # -------------------------- Update MySQL table for portfolio file
5436:
5437: sub update_portfolio_table {
1.821 raeburn 5438: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.970 raeburn 5439: if ($group ne '') {
5440: $file_name =~s /^\Q$group\E//;
5441: }
1.818 raeburn 5442: my $homeserver = &homeserver($uname,$udom);
5443: my $queryid=
1.821 raeburn 5444: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
5445: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 5446: my $reply = &get_query_reply($queryid);
5447: return $reply;
5448: }
5449:
1.899 raeburn 5450: # -------------------------- Update MySQL allusers table
5451:
5452: sub update_allusers_table {
5453: my ($uname,$udom,$names) = @_;
5454: my $homeserver = &homeserver($uname,$udom);
5455: my $queryid=
5456: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
5457: 'lastname='.&escape($names->{'lastname'}).'%%'.
5458: 'firstname='.&escape($names->{'firstname'}).'%%'.
5459: 'middlename='.&escape($names->{'middlename'}).'%%'.
5460: 'generation='.&escape($names->{'generation'}).'%%'.
5461: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
5462: 'id='.&escape($names->{'id'}),$homeserver);
5463: my $reply = &get_query_reply($queryid);
5464: return $reply;
5465: }
5466:
1.508 raeburn 5467: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 5468:
5469: sub fetch_enrollment_query {
1.511 raeburn 5470: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 5471: my $homeserver;
1.547 raeburn 5472: my $maxtries = 1;
1.508 raeburn 5473: if ($context eq 'automated') {
5474: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 5475: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 5476: } else {
5477: $homeserver = &homeserver($cnum,$dom);
5478: }
1.838 albertel 5479: my $host=&hostname($homeserver);
1.506 raeburn 5480: my $cmd = '';
1.1000 raeburn 5481: foreach my $affiliate (keys(%{$affiliatesref})) {
1.800 albertel 5482: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 5483: }
5484: $cmd =~ s/%%$//;
5485: $cmd = &escape($cmd);
5486: my $query = 'fetchenrollment';
1.620 albertel 5487: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 5488: unless ($queryid=~/^\Q$host\E\_/) {
5489: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
5490: return 'error: '.$queryid;
5491: }
1.506 raeburn 5492: my $reply = &get_query_reply($queryid);
1.547 raeburn 5493: my $tries = 1;
5494: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5495: $reply = &get_query_reply($queryid);
5496: $tries ++;
5497: }
1.526 raeburn 5498: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 5499: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 5500: } else {
1.901 albertel 5501: my @responses = split(/:/,$reply);
1.515 raeburn 5502: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 5503: foreach my $line (@responses) {
5504: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 5505: $$replyref{$key} = $value;
5506: }
5507: } else {
1.506 raeburn 5508: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 5509: foreach my $line (@responses) {
5510: my ($key,$value) = split(/=/,$line);
1.506 raeburn 5511: $$replyref{$key} = $value;
5512: if ($value > 0) {
1.800 albertel 5513: foreach my $item (@{$$affiliatesref{$key}}) {
5514: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 5515: my $destname = $pathname.'/'.$filename;
5516: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 5517: if ($xml_classlist =~ /^error/) {
5518: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
5519: } else {
1.506 raeburn 5520: if ( open(FILE,">$destname") ) {
5521: print FILE &unescape($xml_classlist);
5522: close(FILE);
1.526 raeburn 5523: } else {
5524: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 5525: }
5526: }
5527: }
5528: }
5529: }
5530: }
5531: return 'ok';
5532: }
5533: return 'error';
5534: }
5535:
1.242 www 5536: sub get_query_reply {
5537: my $queryid=shift;
1.240 www 5538: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
5539: my $reply='';
5540: for (1..100) {
5541: sleep 2;
5542: if (-e $replyfile.'.end') {
1.448 albertel 5543: if (open(my $fh,$replyfile)) {
1.904 albertel 5544: $reply = join('',<$fh>);
5545: close($fh);
1.240 www 5546: } else { return 'error: reply_file_error'; }
1.242 www 5547: return &unescape($reply);
5548: }
1.240 www 5549: }
1.242 www 5550: return 'timeout:'.$queryid;
1.240 www 5551: }
5552:
5553: sub courselog_query {
1.241 www 5554: #
5555: # possible filters:
5556: # url: url or symb
5557: # username
5558: # domain
5559: # action: view, submit, grade
5560: # start: timestamp
5561: # end: timestamp
5562: #
1.240 www 5563: my (%filters)=@_;
1.620 albertel 5564: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 5565: if ($filters{'url'}) {
5566: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
5567: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
5568: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
5569: }
1.620 albertel 5570: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
5571: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 5572: return &log_query($cname,$cdom,'courselog',%filters);
5573: }
5574:
5575: sub userlog_query {
1.858 raeburn 5576: #
5577: # possible filters:
5578: # action: log check role
5579: # start: timestamp
5580: # end: timestamp
5581: #
1.240 www 5582: my ($uname,$udom,%filters)=@_;
5583: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 5584: }
5585:
1.506 raeburn 5586: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
5587:
5588: sub auto_run {
1.508 raeburn 5589: my ($cnum,$cdom) = @_;
1.876 raeburn 5590: my $response = 0;
5591: my $settings;
5592: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
5593: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
5594: $settings = $domconfig{'autoenroll'};
5595: if ($settings->{'run'} eq '1') {
5596: $response = 1;
5597: }
5598: } else {
1.934 raeburn 5599: my $homeserver;
5600: if (&is_course($cdom,$cnum)) {
5601: $homeserver = &homeserver($cnum,$cdom);
5602: } else {
5603: $homeserver = &domain($cdom,'primary');
5604: }
5605: if ($homeserver ne 'no_host') {
5606: $response = &reply('autorun:'.$cdom,$homeserver);
5607: }
1.876 raeburn 5608: }
1.506 raeburn 5609: return $response;
5610: }
1.776 albertel 5611:
1.506 raeburn 5612: sub auto_get_sections {
1.508 raeburn 5613: my ($cnum,$cdom,$inst_coursecode) = @_;
1.1007 raeburn 5614: my $homeserver;
5615: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5616: $homeserver = &homeserver($cnum,$cdom);
5617: }
5618: if (!defined($homeserver)) {
5619: if ($cdom =~ /^$match_domain$/) {
5620: $homeserver = &domain($cdom,'primary');
5621: }
5622: }
5623: my @secs;
5624: if (defined($homeserver)) {
5625: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
5626: unless ($response eq 'refused') {
5627: @secs = split(/:/,$response);
5628: }
1.506 raeburn 5629: }
5630: return @secs;
5631: }
1.776 albertel 5632:
1.506 raeburn 5633: sub auto_new_course {
1.508 raeburn 5634: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
5635: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 5636: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 5637: return $response;
5638: }
1.776 albertel 5639:
1.506 raeburn 5640: sub auto_validate_courseID {
1.508 raeburn 5641: my ($cnum,$cdom,$inst_course_id) = @_;
5642: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 5643: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 5644: return $response;
5645: }
1.776 albertel 5646:
1.1007 raeburn 5647: sub auto_validate_instcode {
1.1020 ! raeburn 5648: my ($cnum,$cdom,$instcode,$owner) = @_;
1.1007 raeburn 5649: my ($homeserver,$response);
5650: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5651: $homeserver = &homeserver($cnum,$cdom);
5652: }
5653: if (!defined($homeserver)) {
5654: if ($cdom =~ /^$match_domain$/) {
5655: $homeserver = &domain($cdom,'primary');
5656: }
5657: }
5658: my $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
1.1020 ! raeburn 5659: &escape($instcode).':'.&escape($owner),$homeserver));
1.1007 raeburn 5660: return $response;
5661: }
5662:
1.506 raeburn 5663: sub auto_create_password {
1.873 raeburn 5664: my ($cnum,$cdom,$authparam,$udom) = @_;
5665: my ($homeserver,$response);
1.506 raeburn 5666: my $create_passwd = 0;
5667: my $authchk = '';
1.873 raeburn 5668: if ($udom =~ /^$match_domain$/) {
5669: $homeserver = &domain($udom,'primary');
5670: }
5671: if ($homeserver eq '') {
5672: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5673: $homeserver = &homeserver($cnum,$cdom);
5674: }
5675: }
5676: if ($homeserver eq '') {
5677: $authchk = 'nodomain';
1.506 raeburn 5678: } else {
1.873 raeburn 5679: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
5680: if ($response eq 'refused') {
5681: $authchk = 'refused';
5682: } else {
1.901 albertel 5683: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 5684: }
1.506 raeburn 5685: }
5686: return ($authparam,$create_passwd,$authchk);
5687: }
5688:
1.706 raeburn 5689: sub auto_photo_permission {
5690: my ($cnum,$cdom,$students) = @_;
5691: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 5692: my ($outcome,$perm_reqd,$conditions) =
5693: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 5694: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5695: return (undef,undef);
5696: }
1.706 raeburn 5697: return ($outcome,$perm_reqd,$conditions);
5698: }
5699:
5700: sub auto_checkphotos {
5701: my ($uname,$udom,$pid) = @_;
5702: my $homeserver = &homeserver($uname,$udom);
5703: my ($result,$resulttype);
5704: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 5705: &escape($uname).':'.&escape($pid),
5706: $homeserver));
1.709 albertel 5707: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5708: return (undef,undef);
5709: }
1.706 raeburn 5710: if ($outcome) {
5711: ($result,$resulttype) = split(/:/,$outcome);
5712: }
5713: return ($result,$resulttype);
5714: }
5715:
5716: sub auto_photochoice {
5717: my ($cnum,$cdom) = @_;
5718: my $homeserver = &homeserver($cnum,$cdom);
5719: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 5720: &escape($cdom),
5721: $homeserver)));
1.709 albertel 5722: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5723: return (undef,undef);
5724: }
1.706 raeburn 5725: return ($update,$comment);
5726: }
5727:
5728: sub auto_photoupdate {
5729: my ($affiliatesref,$dom,$cnum,$photo) = @_;
5730: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 5731: my $host=&hostname($homeserver);
1.706 raeburn 5732: my $cmd = '';
5733: my $maxtries = 1;
1.800 albertel 5734: foreach my $affiliate (keys(%{$affiliatesref})) {
5735: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 5736: }
5737: $cmd =~ s/%%$//;
5738: $cmd = &escape($cmd);
5739: my $query = 'institutionalphotos';
5740: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
5741: unless ($queryid=~/^\Q$host\E\_/) {
5742: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
5743: return 'error: '.$queryid;
5744: }
5745: my $reply = &get_query_reply($queryid);
5746: my $tries = 1;
5747: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5748: $reply = &get_query_reply($queryid);
5749: $tries ++;
5750: }
5751: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
5752: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
5753: } else {
5754: my @responses = split(/:/,$reply);
5755: my $outcome = shift(@responses);
5756: foreach my $item (@responses) {
5757: my ($key,$value) = split(/=/,$item);
5758: $$photo{$key} = $value;
5759: }
5760: return $outcome;
5761: }
5762: return 'error';
5763: }
5764:
1.521 raeburn 5765: sub auto_instcode_format {
1.793 albertel 5766: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
5767: $cat_order) = @_;
1.521 raeburn 5768: my $courses = '';
1.772 raeburn 5769: my @homeservers;
1.521 raeburn 5770: if ($caller eq 'global') {
1.841 albertel 5771: my %servers = &get_servers($codedom,'library');
5772: foreach my $tryserver (keys(%servers)) {
5773: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5774: push(@homeservers,$tryserver);
5775: }
1.584 raeburn 5776: }
1.521 raeburn 5777: } else {
1.772 raeburn 5778: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 5779: }
1.793 albertel 5780: foreach my $code (keys(%{$instcodes})) {
5781: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 5782: }
5783: chop($courses);
1.772 raeburn 5784: my $ok_response = 0;
5785: my $response;
5786: while (@homeservers > 0 && $ok_response == 0) {
5787: my $server = shift(@homeservers);
5788: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
5789: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
5790: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 5791: split(/:/,$response);
1.772 raeburn 5792: %{$codes} = (%{$codes},&str2hash($codes_str));
5793: push(@{$codetitles},&str2array($codetitles_str));
5794: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
5795: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
5796: $ok_response = 1;
5797: }
5798: }
5799: if ($ok_response) {
1.521 raeburn 5800: return 'ok';
1.772 raeburn 5801: } else {
5802: return $response;
1.521 raeburn 5803: }
5804: }
5805:
1.792 raeburn 5806: sub auto_instcode_defaults {
5807: my ($domain,$returnhash,$code_order) = @_;
5808: my @homeservers;
1.841 albertel 5809:
5810: my %servers = &get_servers($domain,'library');
5811: foreach my $tryserver (keys(%servers)) {
5812: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5813: push(@homeservers,$tryserver);
5814: }
1.792 raeburn 5815: }
1.841 albertel 5816:
1.792 raeburn 5817: my $response;
1.841 albertel 5818: foreach my $server (@homeservers) {
1.792 raeburn 5819: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 5820: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
5821:
5822: foreach my $pair (split(/\&/,$response)) {
5823: my ($name,$value)=split(/\=/,$pair);
5824: if ($name eq 'code_order') {
5825: @{$code_order} = split(/\&/,&unescape($value));
5826: } else {
5827: $returnhash->{&unescape($name)}=&unescape($value);
5828: }
5829: }
5830: return 'ok';
1.792 raeburn 5831: }
1.841 albertel 5832:
5833: return $response;
1.1003 raeburn 5834: }
5835:
5836: sub auto_possible_instcodes {
1.1007 raeburn 5837: my ($domain,$codetitles,$cat_titles,$cat_orders,$code_order) = @_;
5838: unless ((ref($codetitles) eq 'ARRAY') && (ref($cat_titles) eq 'HASH') &&
5839: (ref($cat_orders) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
5840: return;
5841: }
1.1003 raeburn 5842: my (@homeservers,$uhome);
5843: if (defined(&domain($domain,'primary'))) {
5844: $uhome=&domain($domain,'primary');
5845: push(@homeservers,&domain($domain,'primary'));
5846: } else {
5847: my %servers = &get_servers($domain,'library');
5848: foreach my $tryserver (keys(%servers)) {
5849: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5850: push(@homeservers,$tryserver);
5851: }
5852: }
5853: }
5854: my $response;
5855: foreach my $server (@homeservers) {
5856: $response=&reply('autopossibleinstcodes:'.$domain,$server);
5857: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
1.1007 raeburn 5858: my ($codetitlestr,$codeorderstr,$cat_title,$cat_order) =
5859: split(':',$response);
5860: @{$codetitles} = map { &unescape($_); } (split('&',$codetitlestr));
5861: @{$code_order} = map { &unescape($_); } (split('&',$codeorderstr));
1.1003 raeburn 5862: foreach my $item (split('&',$cat_title)) {
1.1005 raeburn 5863: my ($name,$value)=split('=',$item);
5864: $cat_titles->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5865: }
5866: foreach my $item (split('&',$cat_order)) {
1.1005 raeburn 5867: my ($name,$value)=split('=',$item);
5868: $cat_orders->{&unescape($name)}=&thaw_unescape($value);
1.1003 raeburn 5869: }
5870: return 'ok';
5871: }
5872: return $response;
5873: }
1.792 raeburn 5874:
1.1010 raeburn 5875: sub auto_courserequest_checks {
5876: my ($dom) = @_;
1.1020 ! raeburn 5877: my ($homeserver,%validations);
! 5878: if ($dom =~ /^$match_domain$/) {
! 5879: $homeserver = &domain($dom,'primary');
! 5880: }
! 5881: unless ($homeserver eq 'no_host') {
! 5882: my $response=&reply('autocrsreqchecks:'.$dom,$homeserver);
! 5883: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
! 5884: my @items = split(/&/,$response);
! 5885: foreach my $item (@items) {
! 5886: my ($key,$value) = split('=',$item);
! 5887: $validations{&unescape($key)} = &thaw_unescape($value);
! 5888: }
! 5889: }
! 5890: }
1.1010 raeburn 5891: return %validations;
5892: }
5893:
1.1020 ! raeburn 5894: sub auto_courserequest_validation {
! 5895: my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
! 5896: my ($homeserver,$response);
! 5897: if ($dom =~ /^$match_domain$/) {
! 5898: $homeserver = &domain($dom,'primary');
! 5899: }
! 5900: unless ($homeserver eq 'no_host') {
! 5901: $response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
! 5902: ':'.&escape($crstype).':'/&escape($inststatuslist).
! 5903: ':'.&escape($instcode).':'.&escape($instseclist),
! 5904: $homeserver));
! 5905: }
! 5906: return $response;
! 5907: }
! 5908:
1.777 albertel 5909: sub auto_validate_class_sec {
1.918 raeburn 5910: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 5911: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 5912: my $ownerlist;
5913: if (ref($owners) eq 'ARRAY') {
5914: $ownerlist = join(',',@{$owners});
5915: } else {
5916: $ownerlist = $owners;
5917: }
1.773 raeburn 5918: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 5919: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 5920: return $response;
5921: }
5922:
1.679 raeburn 5923: # ------------------------------------------------------- Course Group routines
5924:
5925: sub get_coursegroups {
1.809 raeburn 5926: my ($cdom,$cnum,$group,$namespace) = @_;
5927: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 5928: }
5929:
1.679 raeburn 5930: sub modify_coursegroup {
5931: my ($cdom,$cnum,$groupsettings) = @_;
5932: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
5933: }
5934:
1.809 raeburn 5935: sub toggle_coursegroup_status {
5936: my ($cdom,$cnum,$group,$action) = @_;
5937: my ($from_namespace,$to_namespace);
5938: if ($action eq 'delete') {
5939: $from_namespace = 'coursegroups';
5940: $to_namespace = 'deleted_groups';
5941: } else {
5942: $from_namespace = 'deleted_groups';
5943: $to_namespace = 'coursegroups';
5944: }
5945: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 5946: if (my $tmp = &error(%curr_group)) {
5947: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
5948: return ('read error',$tmp);
5949: } else {
5950: my %savedsettings = %curr_group;
1.809 raeburn 5951: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 5952: my $deloutcome;
5953: if ($result eq 'ok') {
1.809 raeburn 5954: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 5955: } else {
5956: return ('write error',$result);
5957: }
5958: if ($deloutcome eq 'ok') {
5959: return 'ok';
5960: } else {
5961: return ('delete error',$deloutcome);
5962: }
5963: }
5964: }
5965:
1.679 raeburn 5966: sub modify_group_roles {
1.957 raeburn 5967: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 5968: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
5969: my $role = 'gr/'.&escape($userprivs);
5970: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 5971: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 5972: if ($result eq 'ok') {
5973: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
5974: }
1.679 raeburn 5975: return $result;
5976: }
5977:
5978: sub modify_coursegroup_membership {
5979: my ($cdom,$cnum,$membership) = @_;
5980: my $result = &put('groupmembership',$membership,$cdom,$cnum);
5981: return $result;
5982: }
5983:
1.682 raeburn 5984: sub get_active_groups {
5985: my ($udom,$uname,$cdom,$cnum) = @_;
5986: my $now = time;
5987: my %groups = ();
5988: foreach my $key (keys(%env)) {
1.811 albertel 5989: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 5990: my ($start,$end) = split(/\./,$env{$key});
5991: if (($end!=0) && ($end<$now)) { next; }
5992: if (($start!=0) && ($start>$now)) { next; }
5993: if ($1 eq $cdom && $2 eq $cnum) {
5994: $groups{$3} = $env{$key} ;
5995: }
5996: }
5997: }
5998: return %groups;
5999: }
6000:
1.683 raeburn 6001: sub get_group_membership {
6002: my ($cdom,$cnum,$group) = @_;
6003: return(&dump('groupmembership',$cdom,$cnum,$group));
6004: }
6005:
6006: sub get_users_groups {
6007: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 6008: my @usersgroups;
1.683 raeburn 6009: my $cachetime=1800;
6010:
6011: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 6012: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
6013: if (defined($cached)) {
1.734 albertel 6014: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 6015: } else {
6016: $grouplist = '';
1.816 raeburn 6017: my $courseurl = &courseid_to_courseurl($courseid);
6018: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 6019: my $access_end = $env{'course.'.$courseid.
6020: '.default_enrollment_end_date'};
6021: my $now = time;
6022: foreach my $key (keys(%roleshash)) {
6023: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
6024: my $group = $1;
6025: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
6026: my $start = $2;
6027: my $end = $1;
6028: if ($start == -1) { next; } # deleted from group
6029: if (($start!=0) && ($start>$now)) { next; }
6030: if (($end!=0) && ($end<$now)) {
6031: if ($access_end && $access_end < $now) {
6032: if ($access_end - $end < 86400) {
6033: push(@usersgroups,$group);
1.733 raeburn 6034: }
6035: }
1.817 raeburn 6036: next;
1.733 raeburn 6037: }
1.817 raeburn 6038: push(@usersgroups,$group);
1.683 raeburn 6039: }
6040: }
6041: }
1.817 raeburn 6042: @usersgroups = &sort_course_groups($courseid,@usersgroups);
6043: $grouplist = join(':',@usersgroups);
6044: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 6045: }
1.733 raeburn 6046: return @usersgroups;
1.683 raeburn 6047: }
6048:
6049: sub devalidate_getgroups_cache {
6050: my ($udom,$uname,$cdom,$cnum)=@_;
6051: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 6052:
1.683 raeburn 6053: my $hashid="$udom:$uname:$courseid";
6054: &devalidate_cache_new('getgroups',$hashid);
6055: }
6056:
1.12 www 6057: # ------------------------------------------------------------------ Plain Text
6058:
6059: sub plaintext {
1.988 raeburn 6060: my ($short,$type,$cid,$forcedefault) = @_;
1.758 albertel 6061: if ($short =~ /^cr/) {
6062: return (split('/',$short))[-1];
6063: }
1.742 raeburn 6064: if (!defined($cid)) {
6065: $cid = $env{'request.course.id'};
6066: }
1.988 raeburn 6067: if (defined($cid) && ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '')) {
6068: unless ($forcedefault) {
6069: my $roletext = $env{'course.'.$cid.'.'.$short.'.plaintext'};
6070: &Apache::lonlocal::mt_escape(\$roletext);
6071: return &Apache::lonlocal::mt($roletext);
6072: }
1.742 raeburn 6073: }
6074: my %rolenames = (
1.1008 raeburn 6075: Course => 'std',
6076: Community => 'alt1',
1.742 raeburn 6077: );
6078: if (defined($type) &&
6079: defined($rolenames{$type}) &&
6080: defined($prp{$short}{$rolenames{$type}})) {
6081: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
6082: } else {
6083: return &Apache::lonlocal::mt($prp{$short}{'std'});
6084: }
1.12 www 6085: }
6086:
6087: # ----------------------------------------------------------------- Assign Role
6088:
6089: sub assignrole {
1.957 raeburn 6090: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
6091: $context)=@_;
1.21 www 6092: my $mrole;
6093: if ($role =~ /^cr\//) {
1.393 www 6094: my $cwosec=$url;
1.811 albertel 6095: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 6096: unless (&allowed('ccr',$cwosec)) {
1.104 www 6097: &logthis('Refused custom assignrole: '.
6098: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 6099: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 6100: return 'refused';
6101: }
1.21 www 6102: $mrole='cr';
1.678 raeburn 6103: } elsif ($role =~ /^gr\//) {
6104: my $cwogrp=$url;
1.811 albertel 6105: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 6106: unless (&allowed('mdg',$cwogrp)) {
6107: &logthis('Refused group assignrole: '.
6108: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
6109: $env{'user.name'}.' at '.$env{'user.domain'});
6110: return 'refused';
6111: }
6112: $mrole='gr';
1.21 www 6113: } else {
1.82 www 6114: my $cwosec=$url;
1.811 albertel 6115: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 6116: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
6117: my $refused;
6118: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
6119: if (!(&allowed('c'.$role,$url))) {
6120: $refused = 1;
6121: }
6122: } else {
6123: $refused = 1;
6124: }
1.947 raeburn 6125: if ($refused) {
6126: if (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
6127: $refused = '';
1.1017 raeburn 6128: } elsif ($context eq 'requestcourses') {
6129: if (($role eq 'cc') && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
6130: my ($cdom,$cnum) = ($cwosec =~ m{^/($match_domain)/($match_courseid)$});
6131: my %crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
6132: if ($crsenv{'internal.courseowner'} eq
6133: $env{'user.name'}.':'.$env{'user.domain'}) {
6134: $refused = '';
6135: }
6136: }
6137: }
6138: if ($refused) {
1.947 raeburn 6139: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
6140: ' '.$role.' '.$end.' '.$start.' by '.
6141: $env{'user.name'}.' at '.$env{'user.domain'});
6142: return 'refused';
6143: }
1.932 raeburn 6144: }
1.104 www 6145: }
1.21 www 6146: $mrole=$role;
6147: }
1.620 albertel 6148: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 6149: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 6150: if ($end) { $command.='_'.$end; }
1.21 www 6151: if ($start) {
6152: if ($end) {
1.81 www 6153: $command.='_'.$start;
1.21 www 6154: } else {
1.81 www 6155: $command.='_0_'.$start;
1.21 www 6156: }
6157: }
1.739 raeburn 6158: my $origstart = $start;
6159: my $origend = $end;
1.957 raeburn 6160: my $delflag;
1.357 www 6161: # actually delete
6162: if ($deleteflag) {
1.373 www 6163: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 6164: # modify command to delete the role
1.620 albertel 6165: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 6166: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 6167: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 6168: # set start and finish to negative values for userrolelog
6169: $start=-1;
6170: $end=-1;
1.957 raeburn 6171: $delflag = 1;
1.357 www 6172: }
6173: }
6174: # send command
1.349 www 6175: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 6176: # log new user role if status is ok
1.349 www 6177: if ($answer eq 'ok') {
1.663 raeburn 6178: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 6179: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 6180: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 6181: unless ($role =~ /^gr/) {
6182: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 6183: $origstart,$selfenroll,$context);
1.739 raeburn 6184: }
1.349 www 6185: }
6186: return $answer;
1.169 harris41 6187: }
6188:
6189: # -------------------------------------------------- Modify user authentication
1.197 www 6190: # Overrides without validation
6191:
1.169 harris41 6192: sub modifyuserauth {
6193: my ($udom,$uname,$umode,$upass)=@_;
6194: my $uhome=&homeserver($uname,$udom);
1.197 www 6195: unless (&allowed('mau',$udom)) { return 'refused'; }
6196: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 6197: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6198: ' in domain '.$env{'request.role.domain'});
1.169 harris41 6199: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
6200: &escape($upass),$uhome);
1.620 albertel 6201: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 6202: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
6203: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
6204: &log($udom,,$uname,$uhome,
1.620 albertel 6205: 'Authentication changed by '.$env{'user.domain'}.', '.
6206: $env{'user.name'}.', '.$umode.
1.197 www 6207: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 6208: unless ($reply eq 'ok') {
1.197 www 6209: &logthis('Authentication mode error: '.$reply);
1.169 harris41 6210: return 'error: '.$reply;
6211: }
1.170 harris41 6212: return 'ok';
1.80 www 6213: }
6214:
1.81 www 6215: # --------------------------------------------------------------- Modify a user
1.80 www 6216:
1.81 www 6217: sub modifyuser {
1.206 matthew 6218: my ($udom, $uname, $uid,
6219: $umode, $upass, $first,
6220: $middle, $last, $gene,
1.963 raeburn 6221: $forceid, $desiredhome, $email, $inststatus)=@_;
1.807 albertel 6222: $udom= &LONCAPA::clean_domain($udom);
6223: $uname=&LONCAPA::clean_username($uname);
1.81 www 6224: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 6225: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 6226: $last.', '.$gene.'(forceid: '.$forceid.')'.
6227: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
6228: ' desiredhome not specified').
1.620 albertel 6229: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
6230: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 6231: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 6232: # ----------------------------------------------------------------- Create User
1.406 albertel 6233: if (($uhome eq 'no_host') &&
6234: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 6235: my $unhome='';
1.844 albertel 6236: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 6237: $unhome = $desiredhome;
1.620 albertel 6238: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
6239: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 6240: } else { # load balancing routine for determining $unhome
1.81 www 6241: my $loadm=10000000;
1.841 albertel 6242: my %servers = &get_servers($udom,'library');
6243: foreach my $tryserver (keys(%servers)) {
6244: my $answer=reply('load',$tryserver);
6245: if (($answer=~/\d+/) && ($answer<$loadm)) {
6246: $loadm=$answer;
6247: $unhome=$tryserver;
6248: }
1.80 www 6249: }
6250: }
6251: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 6252: return 'error: unable to find a home server for '.$uname.
6253: ' in domain '.$udom;
1.80 www 6254: }
6255: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
6256: &escape($upass),$unhome);
6257: unless ($reply eq 'ok') {
6258: return 'error: '.$reply;
6259: }
1.230 stredwic 6260: $uhome=&homeserver($uname,$udom,'true');
1.80 www 6261: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 6262: return 'error: unable verify users home machine.';
1.80 www 6263: }
1.209 matthew 6264: } # End of creation of new user
1.80 www 6265: # ---------------------------------------------------------------------- Add ID
6266: if ($uid) {
6267: $uid=~tr/A-Z/a-z/;
6268: my %uidhash=&idrget($udom,$uname);
1.196 www 6269: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
6270: && (!$forceid)) {
1.80 www 6271: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 6272: return 'error: user id "'.$uid.'" does not match '.
6273: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 6274: }
6275: } else {
6276: &idput($udom,($uname => $uid));
6277: }
6278: }
6279: # -------------------------------------------------------------- Add names, etc
1.313 matthew 6280: my @tmp=&get('environment',
1.899 raeburn 6281: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 6282: 'permanentemail','inststatus'],
1.134 albertel 6283: $udom,$uname);
1.313 matthew 6284: my %names;
6285: if ($tmp[0] =~ m/^error:.*/) {
6286: %names=();
6287: } else {
6288: %names = @tmp;
6289: }
1.388 www 6290: #
6291: # Make sure to not trash student environment if instructor does not bother
6292: # to supply name and email information
6293: #
6294: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 6295: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 6296: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 6297: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 6298: if ($email) {
6299: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 6300: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 6301: }
1.899 raeburn 6302: if ($uid) { $names{'id'} = $uid; }
1.989 raeburn 6303: if (defined($inststatus)) {
6304: $names{'inststatus'} = '';
6305: my ($usertypes,$typesorder) = &retrieve_inst_usertypes($udom);
6306: if (ref($usertypes) eq 'HASH') {
6307: my @okstatuses;
6308: foreach my $item (split(/:/,$inststatus)) {
6309: if (defined($usertypes->{$item})) {
6310: push(@okstatuses,$item);
6311: }
6312: }
6313: if (@okstatuses) {
6314: $names{'inststatus'} = join(':', map { &escape($_); } @okstatuses);
6315: }
6316: }
6317: }
1.134 albertel 6318: my $reply = &put('environment', \%names, $udom,$uname);
6319: if ($reply ne 'ok') { return 'error: '.$reply; }
1.899 raeburn 6320: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
1.680 www 6321: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.963 raeburn 6322: my $logmsg = 'Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
6323: $umode.', '.$first.', '.$middle.', '.
6324: $last.', '.$gene.', '.$email.', '.$inststatus;
6325: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
6326: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
6327: } else {
6328: $logmsg .= ' during self creation';
6329: }
6330: &logthis($logmsg);
1.134 albertel 6331: return 'ok';
1.80 www 6332: }
6333:
1.81 www 6334: # -------------------------------------------------------------- Modify student
1.80 www 6335:
1.81 www 6336: sub modifystudent {
6337: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 6338: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
1.990 raeburn 6339: $selfenroll,$context,$inststatus)=@_;
1.455 albertel 6340: if (!$cid) {
1.620 albertel 6341: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6342: return 'not_in_class';
6343: }
1.80 www 6344: }
6345: # --------------------------------------------------------------- Make the user
1.81 www 6346: my $reply=&modifyuser
1.209 matthew 6347: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.990 raeburn 6348: $desiredhome,$email,$inststatus);
1.80 www 6349: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 6350: # This will cause &modify_student_enrollment to get the uid from the
6351: # students environment
6352: $uid = undef if (!$forceid);
1.455 albertel 6353: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 6354: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 6355: return $reply;
6356: }
6357:
6358: sub modify_student_enrollment {
1.957 raeburn 6359: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 6360: my ($cdom,$cnum,$chome);
6361: if (!$cid) {
1.620 albertel 6362: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 6363: return 'not_in_class';
6364: }
1.620 albertel 6365: $cdom=$env{'course.'.$cid.'.domain'};
6366: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 6367: } else {
6368: ($cdom,$cnum)=split(/_/,$cid);
6369: }
1.620 albertel 6370: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 6371: if (!$chome) {
1.457 raeburn 6372: $chome=&homeserver($cnum,$cdom);
1.297 matthew 6373: }
1.455 albertel 6374: if (!$chome) { return 'unknown_course'; }
1.297 matthew 6375: # Make sure the user exists
1.81 www 6376: my $uhome=&homeserver($uname,$udom);
6377: if (($uhome eq '') || ($uhome eq 'no_host')) {
6378: return 'error: no such user';
6379: }
1.297 matthew 6380: # Get student data if we were not given enough information
6381: if (!defined($first) || $first eq '' ||
6382: !defined($last) || $last eq '' ||
6383: !defined($uid) || $uid eq '' ||
6384: !defined($middle) || $middle eq '' ||
6385: !defined($gene) || $gene eq '') {
1.294 matthew 6386: # They did not supply us with enough data to enroll the student, so
6387: # we need to pick up more information.
1.297 matthew 6388: my %tmp = &get('environment',
1.294 matthew 6389: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 6390: ,$udom,$uname);
6391:
1.800 albertel 6392: #foreach my $key (keys(%tmp)) {
6393: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 6394: #}
1.294 matthew 6395: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
6396: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
6397: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 6398: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 6399: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
6400: }
1.556 albertel 6401: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 6402: my $reply=cput('classlist',
6403: {"$uname:$udom" =>
1.515 raeburn 6404: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 6405: $cdom,$cnum);
1.81 www 6406: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
6407: return 'error: '.$reply;
1.652 albertel 6408: } else {
6409: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 6410: }
1.297 matthew 6411: # Add student role to user
1.83 www 6412: my $uurl='/'.$cid;
1.81 www 6413: $uurl=~s/\_/\//g;
6414: if ($usec) {
6415: $uurl.='/'.$usec;
6416: }
1.957 raeburn 6417: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 6418: }
6419:
1.556 albertel 6420: sub format_name {
6421: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
6422: my $name;
6423: if ($first ne 'lastname') {
6424: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
6425: } else {
6426: if ($lastname=~/\S/) {
6427: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
6428: $name=~s/\s+,/,/;
6429: } else {
6430: $name.= $firstname.' '.$middlename.' '.$generation;
6431: }
6432: }
6433: $name=~s/^\s+//;
6434: $name=~s/\s+$//;
6435: $name=~s/\s+/ /g;
6436: return $name;
6437: }
6438:
1.84 www 6439: # ------------------------------------------------- Write to course preferences
6440:
6441: sub writecoursepref {
6442: my ($courseid,%prefs)=@_;
6443: $courseid=~s/^\///;
6444: $courseid=~s/\_/\//g;
6445: my ($cdomain,$cnum)=split(/\//,$courseid);
6446: my $chome=homeserver($cnum,$cdomain);
6447: if (($chome eq '') || ($chome eq 'no_host')) {
6448: return 'error: no such course';
6449: }
6450: my $cstring='';
1.800 albertel 6451: foreach my $pref (keys(%prefs)) {
6452: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 6453: }
1.84 www 6454: $cstring=~s/\&$//;
6455: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
6456: }
6457:
6458: # ---------------------------------------------------------- Make/modify course
6459:
6460: sub createcourse {
1.741 raeburn 6461: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
1.1017 raeburn 6462: $course_owner,$crstype,$cnum,$context,$category)=@_;
1.84 www 6463: $url=&declutter($url);
6464: my $cid='';
1.264 matthew 6465: unless (&allowed('ccc',$udom)) {
1.1017 raeburn 6466: if ($context eq 'requestcourses') {
6467: unless (&usertools_access($course_owner,$udom,$category,undef,$context)) {
6468: return 'refused';
6469: }
6470: } else {
6471: return 'refused';
6472: }
1.84 www 6473: }
1.1011 raeburn 6474: # --------------------------------------------------------------- Get Unique ID
6475: my $uname;
6476: if ($cnum =~ /^$match_courseid$/) {
6477: my $chome=&homeserver($cnum,$udom,'true');
6478: if (($chome eq '') || ($chome eq 'no_host')) {
6479: $uname = $cnum;
6480: } else {
6481: $uname = &generate_coursenum($udom);
6482: }
6483: } else {
6484: $uname = &generate_coursenum($udom);
6485: }
6486: return $uname if ($uname =~ /^error/);
6487: # -------------------------------------------------- Check supplied server name
1.620 albertel 6488: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 6489: if (! &is_library($course_server)) {
1.264 matthew 6490: return 'error:bad server name '.$course_server;
6491: }
1.84 www 6492: # ------------------------------------------------------------- Make the course
6493: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 6494: $course_server);
1.84 www 6495: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.1011 raeburn 6496: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 6497: if (($uhome eq '') || ($uhome eq 'no_host')) {
6498: return 'error: no such course';
6499: }
1.271 www 6500: # ----------------------------------------------------------------- Course made
1.516 raeburn 6501: # log existence
1.918 raeburn 6502: my $newcourse = {
6503: $udom.'_'.$uname => {
1.921 raeburn 6504: description => $description,
6505: inst_code => $inst_code,
6506: owner => $course_owner,
6507: type => $crstype,
1.918 raeburn 6508: },
6509: };
1.921 raeburn 6510: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 6511: # set toplevel url
1.271 www 6512: my $topurl=$url;
6513: unless ($nonstandard) {
6514: # ------------------------------------------ For standard courses, make top url
6515: my $mapurl=&clutter($url);
1.278 www 6516: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 6517: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 6518: <map>
6519: <resource id="1" type="start"></resource>
6520: <resource id="2" src="$mapurl"></resource>
6521: <resource id="3" type="finish"></resource>
6522: <link index="1" from="1" to="2"></link>
6523: <link index="2" from="2" to="3"></link>
6524: </map>
6525: ENDINITMAP
6526: $topurl=&declutter(
1.638 albertel 6527: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 6528: );
6529: }
6530: # ----------------------------------------------------------- Write preferences
1.84 www 6531: &writecoursepref($udom.'_'.$uname,
6532: ('description' => $description,
1.271 www 6533: 'url' => $topurl));
1.84 www 6534: return '/'.$udom.'/'.$uname;
6535: }
6536:
1.1011 raeburn 6537: # ------------------------------------------------------------------- Create ID
6538: sub generate_coursenum {
6539: my ($udom) = @_;
6540: my $domdesc = &domain($udom);
6541: return 'error: invalid domain' if ($domdesc eq '');
6542: my $uname=int(1+rand(9)).
6543: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
6544: substr($$.time,0,5).unpack("H8",pack("I32",time)).
6545: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
6546: # ----------------------------------------------- Make sure that does not exist
6547: my $uhome=&homeserver($uname,$udom,'true');
6548: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6549: $uname=int(1+rand(9)).
6550: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
6551: substr($$.time,0,5).unpack("H8",pack("I32",time)).
6552: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
6553: $uhome=&homeserver($uname,$udom,'true');
6554: unless (($uhome eq '') || ($uhome eq 'no_host')) {
6555: return 'error: unable to generate unique course-ID';
6556: }
6557: }
6558: return $uname;
6559: }
6560:
1.813 albertel 6561: sub is_course {
6562: my ($cdom,$cnum) = @_;
6563: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 6564: undef,'.');
1.813 albertel 6565: if (exists($courses{$cdom.'_'.$cnum})) {
6566: return 1;
6567: }
6568: return 0;
6569: }
6570:
1.1015 raeburn 6571: sub store_userdata {
6572: my ($storehash,$datakey,$namespace,$udom,$uname) = @_;
1.1013 raeburn 6573: my $result;
1.1016 raeburn 6574: if ($datakey ne '') {
1.1013 raeburn 6575: if (ref($storehash) eq 'HASH') {
1.1017 raeburn 6576: if ($udom eq '' || $uname eq '') {
6577: $udom = $env{'user.domain'};
6578: $uname = $env{'user.name'};
6579: }
6580: my $uhome=&homeserver($uname,$udom);
1.1013 raeburn 6581: if (($uhome eq '') || ($uhome eq 'no_host')) {
6582: $result = 'error: no_host';
6583: } else {
6584: $storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
6585: $storehash->{'host'} = $perlvar{'lonHostID'};
6586:
6587: my $namevalue='';
6588: foreach my $key (keys(%{$storehash})) {
6589: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
6590: }
6591: $namevalue=~s/\&$//;
6592: $result = &reply("store:$env{'user.domain'}:$env{'user.name'}:".
1.1015 raeburn 6593: "$namespace:$datakey:$namevalue",$uhome);
1.1013 raeburn 6594: }
6595: } else {
6596: $result = 'error: data to store was not a hash reference';
6597: }
6598: } else {
6599: $result= 'error: invalid requestkey';
6600: }
6601: return $result;
6602: }
6603:
1.21 www 6604: # ---------------------------------------------------------- Assign Custom Role
6605:
6606: sub assigncustomrole {
1.957 raeburn 6607: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6608: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 6609: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 6610: }
6611:
6612: # ----------------------------------------------------------------- Revoke Role
6613:
6614: sub revokerole {
1.957 raeburn 6615: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6616: my $now=time;
1.965 raeburn 6617: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 6618: }
6619:
6620: # ---------------------------------------------------------- Revoke Custom Role
6621:
6622: sub revokecustomrole {
1.957 raeburn 6623: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 6624: my $now=time;
1.357 www 6625: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 6626: $deleteflag,$selfenroll,$context);
1.17 www 6627: }
6628:
1.533 banghart 6629: # ------------------------------------------------------------ Disk usage
1.535 albertel 6630: sub diskusage {
1.955 raeburn 6631: my ($udom,$uname,$directorypath,$getpropath)=@_;
6632: $directorypath =~ s/\/$//;
6633: my $listing=&reply('du2:'.&escape($directorypath).':'
6634: .&escape($getpropath).':'.&escape($uname).':'
6635: .&escape($udom),homeserver($uname,$udom));
6636: if ($listing eq 'unknown_cmd') {
6637: if ($getpropath) {
6638: $directorypath = &propath($udom,$uname).'/'.$directorypath;
6639: }
6640: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
6641: }
1.514 albertel 6642: return $listing;
1.512 banghart 6643: }
6644:
1.566 banghart 6645: sub is_locked {
6646: my ($file_name, $domain, $user) = @_;
6647: my @check;
6648: my $is_locked;
6649: push @check, $file_name;
1.613 albertel 6650: my %locked = &get('file_permissions',\@check,
1.620 albertel 6651: $env{'user.domain'},$env{'user.name'});
1.615 albertel 6652: my ($tmp)=keys(%locked);
6653: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 6654:
1.566 banghart 6655: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 6656: $is_locked = 'false';
6657: foreach my $entry (@{$locked{$file_name}}) {
6658: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 6659: $is_locked = 'true';
6660: last;
1.745 raeburn 6661: }
6662: }
1.566 banghart 6663: } else {
6664: $is_locked = 'false';
6665: }
6666: }
6667:
1.759 albertel 6668: sub declutter_portfile {
6669: my ($file) = @_;
1.833 albertel 6670: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 6671: return $file;
6672: }
6673:
1.559 banghart 6674: # ------------------------------------------------------------- Mark as Read Only
6675:
6676: sub mark_as_readonly {
6677: my ($domain,$user,$files,$what) = @_;
1.613 albertel 6678: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6679: my ($tmp)=keys(%current_permissions);
6680: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 6681: foreach my $file (@{$files}) {
1.759 albertel 6682: $file = &declutter_portfile($file);
1.561 banghart 6683: push(@{$current_permissions{$file}},$what);
1.559 banghart 6684: }
1.613 albertel 6685: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 6686: return;
6687: }
6688:
1.572 banghart 6689: # ------------------------------------------------------------Save Selected Files
6690:
6691: sub save_selected_files {
6692: my ($user, $path, @files) = @_;
6693: my $filename = $user."savedfiles";
1.573 banghart 6694: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 6695: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 6696: foreach my $file (@files) {
1.620 albertel 6697: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 6698: }
6699: foreach my $file (@other_files) {
1.574 banghart 6700: print (OUT $file."\n");
1.572 banghart 6701: }
1.574 banghart 6702: close (OUT);
1.572 banghart 6703: return 'ok';
6704: }
6705:
1.574 banghart 6706: sub clear_selected_files {
6707: my ($user) = @_;
6708: my $filename = $user."savedfiles";
6709: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6710: print (OUT undef);
6711: close (OUT);
6712: return ("ok");
6713: }
6714:
1.572 banghart 6715: sub files_in_path {
6716: my ($user, $path) = @_;
6717: my $filename = $user."savedfiles";
6718: my %return_files;
1.574 banghart 6719: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 6720: while (my $line_in = <IN>) {
1.574 banghart 6721: chomp ($line_in);
6722: my @paths_and_file = split (m!/!, $line_in);
6723: my $file_part = pop (@paths_and_file);
6724: my $path_part = join ('/', @paths_and_file);
1.573 banghart 6725: $path_part.='/';
6726: my $path_and_file = $path_part.$file_part;
6727: if ($path_part eq $path) {
6728: $return_files{$file_part}= 'selected';
6729: }
6730: }
1.574 banghart 6731: close (IN);
6732: return (\%return_files);
1.572 banghart 6733: }
6734:
6735: # called in portfolio select mode, to show files selected NOT in current directory
6736: sub files_not_in_path {
6737: my ($user, $path) = @_;
6738: my $filename = $user."savedfiles";
6739: my @return_files;
6740: my $path_part;
1.800 albertel 6741: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6742: while (my $line = <IN>) {
1.572 banghart 6743: #ok, I know it's clunky, but I want it to work
1.800 albertel 6744: my @paths_and_file = split(m|/|, $line);
6745: my $file_part = pop(@paths_and_file);
6746: chomp($file_part);
6747: my $path_part = join('/', @paths_and_file);
1.572 banghart 6748: $path_part .= '/';
6749: my $path_and_file = $path_part.$file_part;
6750: if ($path_part ne $path) {
1.800 albertel 6751: push(@return_files, ($path_and_file));
1.572 banghart 6752: }
6753: }
1.800 albertel 6754: close(OUT);
1.574 banghart 6755: return (@return_files);
1.572 banghart 6756: }
6757:
1.745 raeburn 6758: #----------------------------------------------Get portfolio file permissions
1.629 banghart 6759:
1.745 raeburn 6760: sub get_portfile_permissions {
6761: my ($domain,$user) = @_;
1.613 albertel 6762: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6763: my ($tmp)=keys(%current_permissions);
6764: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6765: return \%current_permissions;
6766: }
6767:
6768: #---------------------------------------------Get portfolio file access controls
6769:
1.749 raeburn 6770: sub get_access_controls {
1.745 raeburn 6771: my ($current_permissions,$group,$file) = @_;
1.769 albertel 6772: my %access;
6773: my $real_file = $file;
6774: $file =~ s/\.meta$//;
1.745 raeburn 6775: if (defined($file)) {
1.749 raeburn 6776: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
6777: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 6778: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 6779: }
6780: }
1.745 raeburn 6781: } else {
1.749 raeburn 6782: foreach my $key (keys(%{$current_permissions})) {
6783: if ($key =~ /\0accesscontrol$/) {
6784: if (defined($group)) {
6785: if ($key !~ m-^\Q$group\E/-) {
6786: next;
6787: }
6788: }
6789: my ($fullpath) = split(/\0/,$key);
6790: if (ref($$current_permissions{$key}) eq 'HASH') {
6791: foreach my $control (keys(%{$$current_permissions{$key}})) {
6792: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
6793: }
6794: }
6795: }
6796: }
6797: }
6798: return %access;
6799: }
6800:
6801: sub modify_access_controls {
6802: my ($file_name,$changes,$domain,$user)=@_;
6803: my ($outcome,$deloutcome);
6804: my %store_permissions;
6805: my %new_values;
6806: my %new_control;
6807: my %translation;
6808: my @deletions = ();
6809: my $now = time;
6810: if (exists($$changes{'activate'})) {
6811: if (ref($$changes{'activate'}) eq 'HASH') {
6812: my @newitems = sort(keys(%{$$changes{'activate'}}));
6813: my $numnew = scalar(@newitems);
6814: for (my $i=0; $i<$numnew; $i++) {
6815: my $newkey = $newitems[$i];
6816: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 6817: if ($newkey =~ /^\d+:/) {
6818: $newkey =~ s/^(\d+)/$newid/;
6819: $translation{$1} = $newid;
6820: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
6821: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
6822: $translation{$1} = $newid;
6823: }
1.749 raeburn 6824: $new_values{$file_name."\0".$newkey} =
6825: $$changes{'activate'}{$newitems[$i]};
6826: $new_control{$newkey} = $now;
6827: }
6828: }
6829: }
6830: my %todelete;
6831: my %changed_items;
6832: foreach my $action ('delete','update') {
6833: if (exists($$changes{$action})) {
6834: if (ref($$changes{$action}) eq 'HASH') {
6835: foreach my $key (keys(%{$$changes{$action}})) {
6836: my ($itemnum) = ($key =~ /^([^:]+):/);
6837: if ($action eq 'delete') {
6838: $todelete{$itemnum} = 1;
6839: } else {
6840: $changed_items{$itemnum} = $key;
6841: }
6842: }
1.745 raeburn 6843: }
6844: }
1.749 raeburn 6845: }
6846: # get lock on access controls for file.
6847: my $lockhash = {
6848: $file_name."\0".'locked_access_records' => $env{'user.name'}.
6849: ':'.$env{'user.domain'},
6850: };
6851: my $tries = 0;
6852: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6853:
6854: while (($gotlock ne 'ok') && $tries <3) {
6855: $tries ++;
6856: sleep 1;
6857: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6858: }
6859: if ($gotlock eq 'ok') {
6860: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
6861: my ($tmp)=keys(%curr_permissions);
6862: if ($tmp=~/^error:/) { undef(%curr_permissions); }
6863: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
6864: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
6865: if (ref($curr_controls) eq 'HASH') {
6866: foreach my $control_item (keys(%{$curr_controls})) {
6867: my ($itemnum) = ($control_item =~ /^([^:]+):/);
6868: if (defined($todelete{$itemnum})) {
6869: push(@deletions,$file_name."\0".$control_item);
6870: } else {
6871: if (defined($changed_items{$itemnum})) {
6872: $new_control{$changed_items{$itemnum}} = $now;
6873: push(@deletions,$file_name."\0".$control_item);
6874: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
6875: } else {
6876: $new_control{$control_item} = $$curr_controls{$control_item};
6877: }
6878: }
1.745 raeburn 6879: }
6880: }
6881: }
1.970 raeburn 6882: my ($group);
6883: if (&is_course($domain,$user)) {
6884: ($group,my $file) = split(/\//,$file_name,2);
6885: }
1.749 raeburn 6886: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
6887: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
6888: $outcome = &put('file_permissions',\%new_values,$domain,$user);
6889: # remove lock
6890: my @del_lock = ($file_name."\0".'locked_access_records');
6891: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 6892: my $sqlresult =
1.970 raeburn 6893: &update_portfolio_table($user,$domain,$file_name,'portfolio_access',
1.818 raeburn 6894: $group);
1.749 raeburn 6895: } else {
6896: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 6897: }
1.749 raeburn 6898: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 6899: }
6900:
1.827 raeburn 6901: sub make_public_indefinitely {
6902: my ($requrl) = @_;
6903: my $now = time;
6904: my $action = 'activate';
6905: my $aclnum = 0;
6906: if (&is_portfolio_url($requrl)) {
6907: my (undef,$udom,$unum,$file_name,$group) =
6908: &parse_portfolio_url($requrl);
6909: my $current_perms = &get_portfile_permissions($udom,$unum);
6910: my %access_controls = &get_access_controls($current_perms,
6911: $group,$file_name);
6912: foreach my $key (keys(%{$access_controls{$file_name}})) {
6913: my ($num,$scope,$end,$start) =
6914: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6915: if ($scope eq 'public') {
6916: if ($start <= $now && $end == 0) {
6917: $action = 'none';
6918: } else {
6919: $action = 'update';
6920: $aclnum = $num;
6921: }
6922: last;
6923: }
6924: }
6925: if ($action eq 'none') {
6926: return 'ok';
6927: } else {
6928: my %changes;
6929: my $newend = 0;
6930: my $newstart = $now;
6931: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
6932: $changes{$action}{$newkey} = {
6933: type => 'public',
6934: time => {
6935: start => $newstart,
6936: end => $newend,
6937: },
6938: };
6939: my ($outcome,$deloutcome,$new_values,$translation) =
6940: &modify_access_controls($file_name,\%changes,$udom,$unum);
6941: return $outcome;
6942: }
6943: } else {
6944: return 'invalid';
6945: }
6946: }
6947:
1.745 raeburn 6948: #------------------------------------------------------Get Marked as Read Only
6949:
6950: sub get_marked_as_readonly {
6951: my ($domain,$user,$what,$group) = @_;
6952: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 6953: my @readonly_files;
1.629 banghart 6954: my $cmp1=$what;
6955: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 6956: while (my ($file_name,$value) = each(%{$current_permissions})) {
6957: if (defined($group)) {
6958: if ($file_name !~ m-^\Q$group\E/-) {
6959: next;
6960: }
6961: }
1.561 banghart 6962: if (ref($value) eq "ARRAY"){
6963: foreach my $stored_what (@{$value}) {
1.629 banghart 6964: my $cmp2=$stored_what;
1.759 albertel 6965: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 6966: $cmp2=join('',@{$stored_what});
1.745 raeburn 6967: }
1.629 banghart 6968: if ($cmp1 eq $cmp2) {
1.561 banghart 6969: push(@readonly_files, $file_name);
1.745 raeburn 6970: last;
1.563 banghart 6971: } elsif (!defined($what)) {
6972: push(@readonly_files, $file_name);
1.745 raeburn 6973: last;
1.561 banghart 6974: }
6975: }
1.745 raeburn 6976: }
1.561 banghart 6977: }
6978: return @readonly_files;
6979: }
1.577 banghart 6980: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 6981:
1.577 banghart 6982: sub get_marked_as_readonly_hash {
1.745 raeburn 6983: my ($current_permissions,$group,$what) = @_;
1.577 banghart 6984: my %readonly_files;
1.745 raeburn 6985: while (my ($file_name,$value) = each(%{$current_permissions})) {
6986: if (defined($group)) {
6987: if ($file_name !~ m-^\Q$group\E/-) {
6988: next;
6989: }
6990: }
1.577 banghart 6991: if (ref($value) eq "ARRAY"){
6992: foreach my $stored_what (@{$value}) {
1.745 raeburn 6993: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 6994: foreach my $lock_descriptor(@{$stored_what}) {
6995: if ($lock_descriptor eq 'graded') {
6996: $readonly_files{$file_name} = 'graded';
6997: } elsif ($lock_descriptor eq 'handback') {
6998: $readonly_files{$file_name} = 'handback';
6999: } else {
7000: if (!exists($readonly_files{$file_name})) {
7001: $readonly_files{$file_name} = 'locked';
7002: }
7003: }
1.745 raeburn 7004: }
1.750 banghart 7005: }
1.577 banghart 7006: }
7007: }
7008: }
7009: return %readonly_files;
7010: }
1.559 banghart 7011: # ------------------------------------------------------------ Unmark as Read Only
7012:
7013: sub unmark_as_readonly {
1.629 banghart 7014: # unmarks $file_name (if $file_name is defined), or all files locked by $what
7015: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 7016: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 7017: $file_name = &declutter_portfile($file_name);
1.634 albertel 7018: my $symb_crs = $what;
7019: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 7020: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 7021: my ($tmp)=keys(%current_permissions);
7022: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 7023: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 7024: foreach my $file (@readonly_files) {
1.759 albertel 7025: my $clean_file = &declutter_portfile($file);
7026: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 7027: my $current_locks = $current_permissions{$file};
1.563 banghart 7028: my @new_locks;
7029: my @del_keys;
7030: if (ref($current_locks) eq "ARRAY"){
7031: foreach my $locker (@{$current_locks}) {
1.632 albertel 7032: my $compare=$locker;
1.749 raeburn 7033: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 7034: $compare=join('',@{$locker});
1.746 raeburn 7035: if ($compare ne $symb_crs) {
7036: push(@new_locks, $locker);
7037: }
1.563 banghart 7038: }
7039: }
1.650 albertel 7040: if (scalar(@new_locks) > 0) {
1.563 banghart 7041: $current_permissions{$file} = \@new_locks;
7042: } else {
7043: push(@del_keys, $file);
1.613 albertel 7044: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 7045: delete($current_permissions{$file});
1.563 banghart 7046: }
7047: }
1.561 banghart 7048: }
1.613 albertel 7049: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 7050: return;
7051: }
1.512 banghart 7052:
1.17 www 7053: # ------------------------------------------------------------ Directory lister
7054:
7055: sub dirlist {
1.955 raeburn 7056: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 7057: $uri=~s/^\///;
7058: $uri=~s/\/$//;
1.253 stredwic 7059: my ($udom, $uname);
1.955 raeburn 7060: if ($getuserdir) {
1.253 stredwic 7061: $udom = $userdomain;
7062: $uname = $username;
1.955 raeburn 7063: } else {
7064: (undef,$udom,$uname)=split(/\//,$uri);
7065: if(defined($userdomain)) {
7066: $udom = $userdomain;
7067: }
7068: if(defined($username)) {
7069: $uname = $username;
7070: }
1.253 stredwic 7071: }
1.955 raeburn 7072: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 7073:
1.955 raeburn 7074: $dirRoot = $perlvar{'lonDocRoot'};
7075: if (defined($getpropath)) {
7076: $dirRoot = &propath($udom,$uname);
1.253 stredwic 7077: $dirRoot =~ s/\/$//;
1.955 raeburn 7078: } elsif (defined($getuserdir)) {
7079: my $subdir=$uname.'__';
7080: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
7081: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
7082: ."/$udom/$subdir/$uname";
7083: } elsif (defined($alternateRoot)) {
7084: $dirRoot = $alternateRoot;
1.751 banghart 7085: }
1.253 stredwic 7086:
7087: if($udom) {
7088: if($uname) {
1.955 raeburn 7089: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 7090: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 7091: .':'.&escape($uname).':'.&escape($udom),
7092: &homeserver($uname,$udom));
7093: if ($listing eq 'unknown_cmd') {
7094: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
7095: &homeserver($uname,$udom));
7096: } else {
7097: @listing_results = map { &unescape($_); } split(/:/,$listing);
7098: }
1.605 matthew 7099: if ($listing eq 'unknown_cmd') {
1.800 albertel 7100: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
7101: &homeserver($uname,$udom));
1.605 matthew 7102: @listing_results = split(/:/,$listing);
7103: } else {
7104: @listing_results = map { &unescape($_); } split(/:/,$listing);
7105: }
7106: return @listing_results;
1.955 raeburn 7107: } elsif(!$alternateRoot) {
1.800 albertel 7108: my %allusers;
1.841 albertel 7109: my %servers = &get_servers($udom,'library');
1.955 raeburn 7110: foreach my $tryserver (keys(%servers)) {
7111: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
7112: &escape($udom),$tryserver);
7113: if ($listing eq 'unknown_cmd') {
7114: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
7115: $udom, $tryserver);
7116: } else {
7117: @listing_results = map { &unescape($_); } split(/:/,$listing);
7118: }
1.841 albertel 7119: if ($listing eq 'unknown_cmd') {
7120: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
7121: $udom, $tryserver);
7122: @listing_results = split(/:/,$listing);
7123: } else {
7124: @listing_results =
7125: map { &unescape($_); } split(/:/,$listing);
7126: }
7127: if ($listing_results[0] ne 'no_such_dir' &&
7128: $listing_results[0] ne 'empty' &&
7129: $listing_results[0] ne 'con_lost') {
7130: foreach my $line (@listing_results) {
7131: my ($entry) = split(/&/,$line,2);
7132: $allusers{$entry} = 1;
7133: }
7134: }
1.253 stredwic 7135: }
7136: my $alluserstr='';
1.800 albertel 7137: foreach my $user (sort(keys(%allusers))) {
7138: $alluserstr.=$user.'&user:';
1.253 stredwic 7139: }
7140: $alluserstr=~s/:$//;
7141: return split(/:/,$alluserstr);
7142: } else {
1.800 albertel 7143: return ('missing user name');
1.253 stredwic 7144: }
1.955 raeburn 7145: } elsif(!defined($getpropath)) {
1.841 albertel 7146: my @all_domains = sort(&all_domains());
1.955 raeburn 7147: foreach my $domain (@all_domains) {
7148: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
7149: }
7150: return @all_domains;
7151: } else {
1.800 albertel 7152: return ('missing domain');
1.275 stredwic 7153: }
7154: }
7155:
7156: # --------------------------------------------- GetFileTimestamp
7157: # This function utilizes dirlist and returns the date stamp for
7158: # when it was last modified. It will also return an error of -1
7159: # if an error occurs
7160:
7161: sub GetFileTimestamp {
1.955 raeburn 7162: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 7163: $studentDomain = &LONCAPA::clean_domain($studentDomain);
7164: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 7165: my ($fileStat) =
7166: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
7167: undef,$getuserdir);
1.275 stredwic 7168: my @stats = split('&', $fileStat);
7169: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 7170: # @stats contains first the filename, then the stat output
7171: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 7172: } else {
7173: return -1;
1.253 stredwic 7174: }
1.26 www 7175: }
7176:
1.712 albertel 7177: sub stat_file {
7178: my ($uri) = @_;
1.787 albertel 7179: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 7180:
1.955 raeburn 7181: my ($udom,$uname,$file);
1.712 albertel 7182: if ($uri =~ m-^/(uploaded|editupload)/-) {
7183: ($udom,$uname,$file) =
1.811 albertel 7184: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 7185: $file = 'userfiles/'.$file;
7186: }
7187: if ($uri =~ m-^/res/-) {
7188: ($udom,$uname) =
1.807 albertel 7189: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 7190: $file = $uri;
7191: }
7192:
7193: if (!$udom || !$uname || !$file) {
7194: # unable to handle the uri
7195: return ();
7196: }
1.956 raeburn 7197: my $getpropath;
7198: if ($file =~ /^userfiles\//) {
7199: $getpropath = 1;
7200: }
1.955 raeburn 7201: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 7202: my @stats = split('&', $result);
1.721 banghart 7203:
1.712 albertel 7204: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
7205: shift(@stats); #filename is first
7206: return @stats;
7207: }
7208: return ();
7209: }
7210:
1.26 www 7211: # -------------------------------------------------------- Value of a Condition
7212:
1.713 albertel 7213: # gets the value of a specific preevaluated condition
7214: # stored in the string $env{user.state.<cid>}
7215: # or looks up a condition reference in the bighash and if if hasn't
7216: # already been evaluated recurses into docondval to get the value of
7217: # the condition, then memoizing it to
7218: # $env{user.state.<cid>.<condition>}
1.40 www 7219: sub directcondval {
7220: my $number=shift;
1.620 albertel 7221: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 7222: &Apache::lonuserstate::evalstate();
7223: }
1.713 albertel 7224: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
7225: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
7226: } elsif ($number =~ /^_/) {
7227: my $sub_condition;
7228: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
7229: &GDBM_READER(),0640)) {
7230: $sub_condition=$bighash{'conditions'.$number};
7231: untie(%bighash);
7232: }
7233: my $value = &docondval($sub_condition);
1.949 raeburn 7234: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 7235: return $value;
7236: }
1.620 albertel 7237: if ($env{'user.state.'.$env{'request.course.id'}}) {
7238: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 7239: } else {
7240: return 2;
7241: }
7242: }
7243:
1.713 albertel 7244: # get the collection of conditions for this resource
1.26 www 7245: sub condval {
7246: my $condidx=shift;
1.54 www 7247: my $allpathcond='';
1.713 albertel 7248: foreach my $cond (split(/\|/,$condidx)) {
7249: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
7250: $allpathcond.=
7251: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
7252: }
1.191 harris41 7253: }
1.54 www 7254: $allpathcond=~s/\|$//;
1.713 albertel 7255: return &docondval($allpathcond);
7256: }
7257:
7258: #evaluates an expression of conditions
7259: sub docondval {
7260: my ($allpathcond) = @_;
7261: my $result=0;
7262: if ($env{'request.course.id'}
7263: && defined($allpathcond)) {
7264: my $operand='|';
7265: my @stack;
7266: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
7267: if ($chunk eq '(') {
7268: push @stack,($operand,$result);
7269: } elsif ($chunk eq ')') {
7270: my $before=pop @stack;
7271: if (pop @stack eq '&') {
7272: $result=$result>$before?$before:$result;
7273: } else {
7274: $result=$result>$before?$result:$before;
7275: }
7276: } elsif (($chunk eq '&') || ($chunk eq '|')) {
7277: $operand=$chunk;
7278: } else {
7279: my $new=directcondval($chunk);
7280: if ($operand eq '&') {
7281: $result=$result>$new?$new:$result;
7282: } else {
7283: $result=$result>$new?$result:$new;
7284: }
7285: }
7286: }
1.26 www 7287: }
7288: return $result;
1.421 albertel 7289: }
7290:
7291: # ---------------------------------------------------- Devalidate courseresdata
7292:
7293: sub devalidatecourseresdata {
7294: my ($coursenum,$coursedomain)=@_;
7295: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7296: &devalidate_cache_new('courseres',$hashid);
1.28 www 7297: }
7298:
1.763 www 7299:
1.200 www 7300: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 7301: #
7302: # Parameters:
7303: # $coursenum - Number of the course.
7304: # $coursedomain - Domain at which the course was created.
7305: # Returns:
7306: # A hash of the course parameters along (I think) with timestamps
7307: # and version info.
1.877 foxr 7308:
1.624 albertel 7309: sub get_courseresdata {
7310: my ($coursenum,$coursedomain)=@_;
1.200 www 7311: my $coursehom=&homeserver($coursenum,$coursedomain);
7312: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 7313: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 7314: my %dumpreply;
1.417 albertel 7315: unless (defined($cached)) {
1.624 albertel 7316: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 7317: $result=\%dumpreply;
1.251 albertel 7318: my ($tmp) = keys(%dumpreply);
7319: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 7320: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 7321: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
7322: return $tmp;
1.416 albertel 7323: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 7324: $result=undef;
1.599 albertel 7325: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 7326: }
7327: }
1.624 albertel 7328: return $result;
7329: }
7330:
1.633 albertel 7331: sub devalidateuserresdata {
7332: my ($uname,$udom)=@_;
7333: my $hashid="$udom:$uname";
7334: &devalidate_cache_new('userres',$hashid);
7335: }
7336:
1.624 albertel 7337: sub get_userresdata {
7338: my ($uname,$udom)=@_;
7339: #most student don\'t have any data set, check if there is some data
7340: if (&EXT_cache_status($udom,$uname)) { return undef; }
7341:
7342: my $hashid="$udom:$uname";
7343: my ($result,$cached)=&is_cached_new('userres',$hashid);
7344: if (!defined($cached)) {
7345: my %resourcedata=&dump('resourcedata',$udom,$uname);
7346: $result=\%resourcedata;
7347: &do_cache_new('userres',$hashid,$result,600);
7348: }
7349: my ($tmp)=keys(%$result);
7350: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
7351: return $result;
7352: }
7353: #error 2 occurs when the .db doesn't exist
7354: if ($tmp!~/error: 2 /) {
1.672 albertel 7355: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 7356: " Trying to get resource data for ".
7357: $uname." at ".$udom.": ".
7358: $tmp."</font>");
7359: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 7360: #&EXT_cache_set($udom,$uname);
7361: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 7362: undef($tmp); # not really an error so don't send it back
1.624 albertel 7363: }
7364: return $tmp;
7365: }
1.879 foxr 7366: #----------------------------------------------- resdata - return resource data
7367: # Purpose:
7368: # Return resource data for either users or for a course.
7369: # Parameters:
7370: # $name - Course/user name.
7371: # $domain - Name of the domain the user/course is registered on.
7372: # $type - Type of thing $name is (must be 'course' or 'user'
7373: # @which - Array of names of resources desired.
7374: # Returns:
7375: # The value of the first reasource in @which that is found in the
7376: # resource hash.
7377: # Exceptional Conditions:
7378: # If the $type passed in is not valid (not the string 'course' or
7379: # 'user', an undefined reference is returned.
7380: # If none of the resources are found, an undef is returned
1.624 albertel 7381: sub resdata {
7382: my ($name,$domain,$type,@which)=@_;
7383: my $result;
7384: if ($type eq 'course') {
7385: $result=&get_courseresdata($name,$domain);
7386: } elsif ($type eq 'user') {
7387: $result=&get_userresdata($name,$domain);
7388: }
7389: if (!ref($result)) { return $result; }
1.251 albertel 7390: foreach my $item (@which) {
1.927 albertel 7391: if (defined($result->{$item->[0]})) {
7392: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 7393: }
1.250 albertel 7394: }
1.291 albertel 7395: return undef;
1.200 www 7396: }
7397:
1.379 matthew 7398: #
7399: # EXT resource caching routines
7400: #
7401:
7402: sub clear_EXT_cache_status {
1.383 albertel 7403: &delenv('cache.EXT.');
1.379 matthew 7404: }
7405:
7406: sub EXT_cache_status {
7407: my ($target_domain,$target_user) = @_;
1.383 albertel 7408: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 7409: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 7410: # We know already the user has no data
7411: return 1;
7412: } else {
7413: return 0;
7414: }
7415: }
7416:
7417: sub EXT_cache_set {
7418: my ($target_domain,$target_user) = @_;
1.383 albertel 7419: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 7420: #&appenv({$cachename => time});
1.379 matthew 7421: }
7422:
1.28 www 7423: # --------------------------------------------------------- Value of a Variable
1.58 www 7424: sub EXT {
1.715 albertel 7425:
1.395 albertel 7426: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 7427: unless ($varname) { return ''; }
1.218 albertel 7428: #get real user name/domain, courseid and symb
7429: my $courseid;
1.359 albertel 7430: my $publicuser;
1.427 www 7431: if ($symbparm) {
7432: $symbparm=&get_symb_from_alias($symbparm);
7433: }
1.218 albertel 7434: if (!($uname && $udom)) {
1.790 albertel 7435: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 7436: if (!$symbparm) { $symbparm=$cursymb; }
7437: } else {
1.620 albertel 7438: $courseid=$env{'request.course.id'};
1.218 albertel 7439: }
1.48 www 7440: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
7441: my $rest;
1.320 albertel 7442: if (defined($therest[0])) {
1.48 www 7443: $rest=join('.',@therest);
7444: } else {
7445: $rest='';
7446: }
1.320 albertel 7447:
1.57 www 7448: my $qualifierrest=$qualifier;
7449: if ($rest) { $qualifierrest.='.'.$rest; }
7450: my $spacequalifierrest=$space;
7451: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 7452: if ($realm eq 'user') {
1.48 www 7453: # --------------------------------------------------------------- user.resource
7454: if ($space eq 'resource') {
1.651 albertel 7455: if ( (defined($Apache::lonhomework::parsing_a_problem)
7456: || defined($Apache::lonhomework::parsing_a_task))
7457: &&
1.744 albertel 7458: ($symbparm eq &symbread()) ) {
7459: # if we are in the middle of processing the resource the
7460: # get the value we are planning on committing
7461: if (defined($Apache::lonhomework::results{$qualifierrest})) {
7462: return $Apache::lonhomework::results{$qualifierrest};
7463: } else {
7464: return $Apache::lonhomework::history{$qualifierrest};
7465: }
1.335 albertel 7466: } else {
1.359 albertel 7467: my %restored;
1.620 albertel 7468: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 7469: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
7470: } else {
7471: %restored=&restore($symbparm,$courseid,$udom,$uname);
7472: }
1.335 albertel 7473: return $restored{$qualifierrest};
7474: }
1.48 www 7475: # ----------------------------------------------------------------- user.access
7476: } elsif ($space eq 'access') {
1.218 albertel 7477: # FIXME - not supporting calls for a specific user
1.48 www 7478: return &allowed($qualifier,$rest);
7479: # ------------------------------------------ user.preferences, user.environment
7480: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 7481: if (($uname eq $env{'user.name'}) &&
7482: ($udom eq $env{'user.domain'})) {
7483: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 7484: } else {
1.359 albertel 7485: my %returnhash;
7486: if (!$publicuser) {
7487: %returnhash=&userenvironment($udom,$uname,
7488: $qualifierrest);
7489: }
1.218 albertel 7490: return $returnhash{$qualifierrest};
7491: }
1.48 www 7492: # ----------------------------------------------------------------- user.course
7493: } elsif ($space eq 'course') {
1.218 albertel 7494: # FIXME - not supporting calls for a specific user
1.620 albertel 7495: return $env{join('.',('request.course',$qualifier))};
1.48 www 7496: # ------------------------------------------------------------------- user.role
7497: } elsif ($space eq 'role') {
1.218 albertel 7498: # FIXME - not supporting calls for a specific user
1.620 albertel 7499: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 7500: if ($qualifier eq 'value') {
7501: return $role;
7502: } elsif ($qualifier eq 'extent') {
7503: return $where;
7504: }
7505: # ----------------------------------------------------------------- user.domain
7506: } elsif ($space eq 'domain') {
1.218 albertel 7507: return $udom;
1.48 www 7508: # ------------------------------------------------------------------- user.name
7509: } elsif ($space eq 'name') {
1.218 albertel 7510: return $uname;
1.48 www 7511: # ---------------------------------------------------- Any other user namespace
1.29 www 7512: } else {
1.359 albertel 7513: my %reply;
7514: if (!$publicuser) {
7515: %reply=&get($space,[$qualifierrest],$udom,$uname);
7516: }
7517: return $reply{$qualifierrest};
1.48 www 7518: }
1.236 www 7519: } elsif ($realm eq 'query') {
7520: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 7521: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
7522: [$spacequalifierrest]);
1.620 albertel 7523: return $env{'form.'.$spacequalifierrest};
1.236 www 7524: } elsif ($realm eq 'request') {
1.48 www 7525: # ------------------------------------------------------------- request.browser
7526: if ($space eq 'browser') {
1.430 www 7527: if ($qualifier eq 'textremote') {
1.676 albertel 7528: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 7529: return 1;
7530: } else {
7531: return 0;
7532: }
7533: } else {
1.620 albertel 7534: return $env{'browser.'.$qualifier};
1.430 www 7535: }
1.57 www 7536: # ------------------------------------------------------------ request.filename
7537: } else {
1.620 albertel 7538: return $env{'request.'.$spacequalifierrest};
1.29 www 7539: }
1.28 www 7540: } elsif ($realm eq 'course') {
1.48 www 7541: # ---------------------------------------------------------- course.description
1.620 albertel 7542: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 7543: } elsif ($realm eq 'resource') {
1.165 www 7544:
1.620 albertel 7545: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 7546: if (!$symbparm) { $symbparm=&symbread(); }
7547: }
1.693 albertel 7548:
7549: if ($space eq 'title') {
7550: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
7551: return &gettitle($symbparm);
7552: }
7553:
7554: if ($space eq 'map') {
7555: my ($map) = &decode_symb($symbparm);
7556: return &symbread($map);
7557: }
1.905 albertel 7558: if ($space eq 'filename') {
7559: if ($symbparm) {
7560: return &clutter((&decode_symb($symbparm))[2]);
7561: }
7562: return &hreflocation('',$env{'request.filename'});
7563: }
1.693 albertel 7564:
7565: my ($section, $group, @groups);
1.593 albertel 7566: my ($courselevelm,$courselevel);
1.539 albertel 7567: if ($symbparm && defined($courseid) &&
1.620 albertel 7568: $courseid eq $env{'request.course.id'}) {
1.165 www 7569:
1.218 albertel 7570: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 7571:
1.60 www 7572: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 7573: my $symbp=$symbparm;
1.735 albertel 7574: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 7575:
7576: my $symbparm=$symbp.'.'.$spacequalifierrest;
7577: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
7578:
1.620 albertel 7579: if (($env{'user.name'} eq $uname) &&
7580: ($env{'user.domain'} eq $udom)) {
7581: $section=$env{'request.course.sec'};
1.733 raeburn 7582: @groups = split(/:/,$env{'request.course.groups'});
7583: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 7584: } else {
1.539 albertel 7585: if (! defined($usection)) {
1.551 albertel 7586: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 7587: } else {
7588: $section = $usection;
7589: }
1.733 raeburn 7590: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 7591: }
7592:
7593: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
7594: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
7595: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
7596:
1.593 albertel 7597: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 7598: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 7599: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 7600:
1.60 www 7601: # ----------------------------------------------------------- first, check user
1.624 albertel 7602:
7603: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 7604: ([$courselevelr,'resource'],
7605: [$courselevelm,'map' ],
7606: [$courselevel, 'course' ]));
1.931 albertel 7607: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 7608:
1.594 albertel 7609: # ------------------------------------------------ second, check some of course
1.684 raeburn 7610: my $coursereply;
1.691 raeburn 7611: if (@groups > 0) {
7612: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
7613: $mapparm,$spacequalifierrest);
1.927 albertel 7614: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 7615: }
1.96 www 7616:
1.684 raeburn 7617: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 7618: $env{'course.'.$courseid.'.domain'},
7619: 'course',
7620: ([$seclevelr, 'resource'],
7621: [$seclevelm, 'map' ],
7622: [$seclevel, 'course' ],
7623: [$courselevelr,'resource']));
7624: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 7625:
1.60 www 7626: # ------------------------------------------------------ third, check map parms
1.218 albertel 7627: my %parmhash=();
7628: my $thisparm='';
7629: if (tie(%parmhash,'GDBM_File',
1.620 albertel 7630: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 7631: &GDBM_READER(),0640)) {
1.218 albertel 7632: $thisparm=$parmhash{$symbparm};
7633: untie(%parmhash);
7634: }
1.927 albertel 7635: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 7636: }
1.594 albertel 7637: # ------------------------------------------ fourth, look in resource metadata
1.71 www 7638:
1.218 albertel 7639: $spacequalifierrest=~s/\./\_/;
1.282 albertel 7640: my $filename;
7641: if (!$symbparm) { $symbparm=&symbread(); }
7642: if ($symbparm) {
1.409 www 7643: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 7644: } else {
1.620 albertel 7645: $filename=$env{'request.filename'};
1.282 albertel 7646: }
7647: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 7648: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 7649: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 7650: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 7651:
1.927 albertel 7652: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 7653: if ($symbparm && defined($courseid) &&
1.620 albertel 7654: $courseid eq $env{'request.course.id'}) {
1.624 albertel 7655: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
7656: $env{'course.'.$courseid.'.domain'},
7657: 'course',
1.927 albertel 7658: ([$courselevelm,'map' ],
7659: [$courselevel, 'course']));
7660: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 7661: }
1.145 www 7662: # ------------------------------------------------------------------ Cascade up
1.218 albertel 7663: unless ($space eq '0') {
1.336 albertel 7664: my @parts=split(/_/,$space);
7665: my $id=pop(@parts);
7666: my $part=join('_',@parts);
7667: if ($part eq '') { $part='0'; }
1.927 albertel 7668: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 7669: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 7670: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 7671: }
1.395 albertel 7672: if ($recurse) { return undef; }
7673: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 7674: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 7675: # ---------------------------------------------------- Any other user namespace
7676: } elsif ($realm eq 'environment') {
7677: # ----------------------------------------------------------------- environment
1.620 albertel 7678: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
7679: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 7680: } else {
1.770 albertel 7681: if ($uname eq 'anonymous' && $udom eq '') {
7682: return '';
7683: }
1.219 albertel 7684: my %returnhash=&userenvironment($udom,$uname,
7685: $spacequalifierrest);
7686: return $returnhash{$spacequalifierrest};
7687: }
1.28 www 7688: } elsif ($realm eq 'system') {
1.48 www 7689: # ----------------------------------------------------------------- system.time
7690: if ($space eq 'time') {
7691: return time;
7692: }
1.696 albertel 7693: } elsif ($realm eq 'server') {
7694: # ----------------------------------------------------------------- system.time
7695: if ($space eq 'name') {
7696: return $ENV{'SERVER_NAME'};
7697: }
1.28 www 7698: }
1.48 www 7699: return '';
1.61 www 7700: }
7701:
1.927 albertel 7702: sub get_reply {
7703: my ($reply_value) = @_;
1.940 raeburn 7704: if (ref($reply_value) eq 'ARRAY') {
7705: if (wantarray) {
7706: return @$reply_value;
7707: }
7708: return $reply_value->[0];
7709: } else {
7710: return $reply_value;
1.927 albertel 7711: }
7712: }
7713:
1.691 raeburn 7714: sub check_group_parms {
7715: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
7716: my @groupitems = ();
7717: my $resultitem;
1.927 albertel 7718: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 7719: foreach my $group (@{$groups}) {
7720: foreach my $level (@levels) {
1.927 albertel 7721: my $item = $courseid.'.['.$group.'].'.$level->[0];
7722: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 7723: }
7724: }
7725: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
7726: $env{'course.'.$courseid.'.domain'},
7727: 'course',@groupitems);
7728: return $coursereply;
7729: }
7730:
7731: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 7732: my ($courseid,@groups) = @_;
7733: @groups = sort(@groups);
1.691 raeburn 7734: return @groups;
7735: }
7736:
1.395 albertel 7737: sub packages_tab_default {
7738: my ($uri,$varname)=@_;
7739: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 7740:
7741: my (@extension,@specifics,$do_default);
7742: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 7743: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 7744: if ($pack_type eq 'default') {
7745: $do_default=1;
7746: } elsif ($pack_type eq 'extension') {
7747: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 7748: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 7749: # only look at packages defaults for packages that this id is
1.738 albertel 7750: push(@specifics,[$package,$pack_type,$pack_part]);
7751: }
7752: }
7753: # first look for a package that matches the requested part id
7754: foreach my $package (@specifics) {
7755: my (undef,$pack_type,$pack_part)=@{$package};
7756: next if ($pack_part ne $part);
7757: if (defined($packagetab{"$pack_type&$name&default"})) {
7758: return $packagetab{"$pack_type&$name&default"};
7759: }
7760: }
7761: # look for any possible matching non extension_ package
7762: foreach my $package (@specifics) {
7763: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 7764: if (defined($packagetab{"$pack_type&$name&default"})) {
7765: return $packagetab{"$pack_type&$name&default"};
7766: }
1.585 albertel 7767: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 7768: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
7769: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 7770: }
7771: }
1.738 albertel 7772: # look for any posible extension_ match
7773: foreach my $package (@extension) {
7774: my ($package,$pack_type)=@{$package};
7775: if (defined($packagetab{"$pack_type&$name&default"})) {
7776: return $packagetab{"$pack_type&$name&default"};
7777: }
7778: if (defined($packagetab{$package."&$name&default"})) {
7779: return $packagetab{$package."&$name&default"};
7780: }
7781: }
7782: # look for a global default setting
7783: if ($do_default && defined($packagetab{"default&$name&default"})) {
7784: return $packagetab{"default&$name&default"};
7785: }
1.395 albertel 7786: return undef;
7787: }
7788:
1.334 albertel 7789: sub add_prefix_and_part {
7790: my ($prefix,$part)=@_;
7791: my $keyroot;
7792: if (defined($prefix) && $prefix !~ /^__/) {
7793: # prefix that has a part already
7794: $keyroot=$prefix;
7795: } elsif (defined($prefix)) {
7796: # prefix that is missing a part
7797: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
7798: } else {
7799: # no prefix at all
7800: if (defined($part)) { $keyroot='_'.$part; }
7801: }
7802: return $keyroot;
7803: }
7804:
1.71 www 7805: # ---------------------------------------------------------------- Get metadata
7806:
1.599 albertel 7807: my %metaentry;
1.71 www 7808: sub metadata {
1.176 www 7809: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 7810: $uri=&declutter($uri);
1.288 albertel 7811: # if it is a non metadata possible uri return quickly
1.529 albertel 7812: if (($uri eq '') ||
7813: (($uri =~ m|^/*adm/|) &&
1.698 albertel 7814: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.924 albertel 7815: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) ) {
7816: return undef;
7817: }
7818: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
7819: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 7820: return undef;
1.288 albertel 7821: }
1.73 www 7822: my $filename=$uri;
7823: $uri=~s/\.meta$//;
1.172 www 7824: #
7825: # Is the metadata already cached?
1.177 www 7826: # Look at timestamp of caching
1.172 www 7827: # Everything is cached by the main uri, libraries are never directly cached
7828: #
1.428 albertel 7829: if (!defined($liburi)) {
1.599 albertel 7830: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 7831: if (defined($cached)) { return $result->{':'.$what}; }
7832: }
7833: {
1.172 www 7834: #
7835: # Is this a recursive call for a library?
7836: #
1.599 albertel 7837: # if (! exists($metacache{$uri})) {
7838: # $metacache{$uri}={};
7839: # }
1.924 albertel 7840: my $cachetime = 60*60;
1.171 www 7841: if ($liburi) {
7842: $liburi=&declutter($liburi);
7843: $filename=$liburi;
1.401 bowersj2 7844: } else {
1.599 albertel 7845: &devalidate_cache_new('meta',$uri);
7846: undef(%metaentry);
1.401 bowersj2 7847: }
1.140 www 7848: my %metathesekeys=();
1.73 www 7849: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 7850: my $metastring;
1.924 albertel 7851: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 7852: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 7853: $metastring =
1.929 albertel 7854: &Apache::lonnet::ssi_body($which,
1.924 albertel 7855: ('grade_target' => 'meta'));
7856: $cachetime = 1; # only want this cached in the child not long term
7857: } elsif ($uri !~ m -^(editupload)/-) {
1.543 albertel 7858: my $file=&filelocation('',&clutter($filename));
1.599 albertel 7859: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 7860: $metastring=&getfile($file);
1.489 albertel 7861: }
1.208 albertel 7862: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 7863: my $token;
1.140 www 7864: undef %metathesekeys;
1.71 www 7865: while ($token=$parser->get_token) {
1.339 albertel 7866: if ($token->[0] eq 'S') {
7867: if (defined($token->[2]->{'package'})) {
1.172 www 7868: #
7869: # This is a package - get package info
7870: #
1.339 albertel 7871: my $package=$token->[2]->{'package'};
7872: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7873: if (defined($token->[2]->{'id'})) {
7874: $keyroot.='_'.$token->[2]->{'id'};
7875: }
1.599 albertel 7876: if ($metaentry{':packages'}) {
7877: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 7878: } else {
1.599 albertel 7879: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 7880: }
1.736 albertel 7881: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 7882: my $part=$keyroot;
7883: $part=~s/^\_//;
1.736 albertel 7884: if ($pack_entry=~/^\Q$package\E\&/ ||
7885: $pack_entry=~/^\Q$package\E_0\&/) {
7886: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 7887: # ignore package.tab specified default values
7888: # here &package_tab_default() will fetch those
7889: if ($subp eq 'default') { next; }
1.736 albertel 7890: my $value=$packagetab{$pack_entry};
1.432 albertel 7891: my $unikey;
7892: if ($pack =~ /_0$/) {
7893: $unikey='parameter_0_'.$name;
7894: $part=0;
7895: } else {
7896: $unikey='parameter'.$keyroot.'_'.$name;
7897: }
1.339 albertel 7898: if ($subp eq 'display') {
7899: $value.=' [Part: '.$part.']';
7900: }
1.599 albertel 7901: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 7902: $metathesekeys{$unikey}=1;
1.599 albertel 7903: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7904: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 7905: }
1.599 albertel 7906: if (defined($metaentry{':'.$unikey.'.default'})) {
7907: $metaentry{':'.$unikey}=
7908: $metaentry{':'.$unikey.'.default'};
1.356 albertel 7909: }
1.339 albertel 7910: }
7911: }
7912: } else {
1.172 www 7913: #
7914: # This is not a package - some other kind of start tag
1.339 albertel 7915: #
7916: my $entry=$token->[1];
7917: my $unikey;
7918: if ($entry eq 'import') {
7919: $unikey='';
7920: } else {
7921: $unikey=$entry;
7922: }
7923: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7924:
7925: if (defined($token->[2]->{'id'})) {
7926: $unikey.='_'.$token->[2]->{'id'};
7927: }
1.175 www 7928:
1.339 albertel 7929: if ($entry eq 'import') {
1.175 www 7930: #
7931: # Importing a library here
1.339 albertel 7932: #
7933: if ($depthcount<20) {
7934: my $location=$parser->get_text('/import');
7935: my $dir=$filename;
7936: $dir=~s|[^/]*$||;
7937: $location=&filelocation($dir,$location);
1.736 albertel 7938: my $metadata =
7939: &metadata($uri,'keys', $location,$unikey,
7940: $depthcount+1);
7941: foreach my $meta (split(',',$metadata)) {
7942: $metaentry{':'.$meta}=$metaentry{':'.$meta};
7943: $metathesekeys{$meta}=1;
1.339 albertel 7944: }
7945: }
7946: } else {
7947:
7948: if (defined($token->[2]->{'name'})) {
7949: $unikey.='_'.$token->[2]->{'name'};
7950: }
7951: $metathesekeys{$unikey}=1;
1.736 albertel 7952: foreach my $param (@{$token->[3]}) {
7953: $metaentry{':'.$unikey.'.'.$param} =
7954: $token->[2]->{$param};
1.339 albertel 7955: }
7956: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 7957: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 7958: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
7959: # only ws inside the tag, and not in default, so use default
7960: # as value
1.599 albertel 7961: $metaentry{':'.$unikey}=$default;
1.908 albertel 7962: } elsif ( $internaltext =~ /\S/ ) {
7963: # something interesting inside the tag
7964: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 7965: } else {
1.908 albertel 7966: # no interesting values, don't set a default
1.339 albertel 7967: }
1.172 www 7968: # end of not-a-package not-a-library import
1.339 albertel 7969: }
1.172 www 7970: # end of not-a-package start tag
1.339 albertel 7971: }
1.172 www 7972: # the next is the end of "start tag"
1.339 albertel 7973: }
7974: }
1.483 albertel 7975: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 7976: $extension = lc($extension);
7977: if ($extension eq 'htm') { $extension='html'; }
7978:
1.737 albertel 7979: foreach my $key (keys(%packagetab)) {
1.483 albertel 7980: #no specific packages #how's our extension
7981: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 7982: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 7983: \%metathesekeys);
7984: }
1.883 albertel 7985:
7986: if (!exists($metaentry{':packages'})
7987: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 7988: foreach my $key (keys(%packagetab)) {
1.483 albertel 7989: #no specific packages well let's get default then
7990: if ($key!~/^default&/) { next; }
1.488 albertel 7991: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 7992: \%metathesekeys);
7993: }
7994: }
1.338 www 7995: # are there custom rights to evaluate
1.599 albertel 7996: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 7997:
1.338 www 7998: #
7999: # Importing a rights file here
1.339 albertel 8000: #
8001: unless ($depthcount) {
1.599 albertel 8002: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 8003: my $dir=$filename;
8004: $dir=~s|[^/]*$||;
8005: $location=&filelocation($dir,$location);
1.736 albertel 8006: my $rights_metadata =
8007: &metadata($uri,'keys',$location,'_rights',
8008: $depthcount+1);
8009: foreach my $rights (split(',',$rights_metadata)) {
8010: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
8011: $metathesekeys{$rights}=1;
1.339 albertel 8012: }
8013: }
8014: }
1.737 albertel 8015: # uniqifiy package listing
8016: my %seen;
8017: my @uniq_packages =
8018: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
8019: $metaentry{':packages'} = join(',',@uniq_packages);
8020:
8021: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 8022: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
8023: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 8024: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 8025: # this is the end of "was not already recently cached
1.71 www 8026: }
1.599 albertel 8027: return $metaentry{':'.$what};
1.261 albertel 8028: }
8029:
1.488 albertel 8030: sub metadata_create_package_def {
1.483 albertel 8031: my ($uri,$key,$package,$metathesekeys)=@_;
8032: my ($pack,$name,$subp)=split(/\&/,$key);
8033: if ($subp eq 'default') { next; }
8034:
1.599 albertel 8035: if (defined($metaentry{':packages'})) {
8036: $metaentry{':packages'}.=','.$package;
1.483 albertel 8037: } else {
1.599 albertel 8038: $metaentry{':packages'}=$package;
1.483 albertel 8039: }
8040: my $value=$packagetab{$key};
8041: my $unikey;
8042: $unikey='parameter_0_'.$name;
1.599 albertel 8043: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 8044: $$metathesekeys{$unikey}=1;
1.599 albertel 8045: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
8046: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 8047: }
1.599 albertel 8048: if (defined($metaentry{':'.$unikey.'.default'})) {
8049: $metaentry{':'.$unikey}=
8050: $metaentry{':'.$unikey.'.default'};
1.483 albertel 8051: }
8052: }
8053:
1.261 albertel 8054: sub metadata_generate_part0 {
8055: my ($metadata,$metacache,$uri) = @_;
8056: my %allnames;
1.737 albertel 8057: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 8058: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 8059: my $part=$$metacache{':'.$metakey.'.part'};
8060: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 8061: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 8062: $allnames{$name}=$part;
8063: }
8064: }
8065: }
8066: foreach my $name (keys(%allnames)) {
8067: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 8068: my $key=":parameter_0_$name";
1.261 albertel 8069: $$metacache{"$key.part"}='0';
8070: $$metacache{"$key.name"}=$name;
1.428 albertel 8071: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 8072: $allnames{$name}.'_'.$name.
8073: '.type'};
1.428 albertel 8074: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 8075: '.display'};
1.644 www 8076: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 8077: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 8078: $$metacache{"$key.display"}=$olddis;
8079: }
1.71 www 8080: }
8081:
1.764 albertel 8082: # ------------------------------------------------------ Devalidate title cache
8083:
8084: sub devalidate_title_cache {
8085: my ($url)=@_;
8086: if (!$env{'request.course.id'}) { return; }
8087: my $symb=&symbread($url);
8088: if (!$symb) { return; }
8089: my $key=$env{'request.course.id'}."\0".$symb;
8090: &devalidate_cache_new('title',$key);
8091: }
8092:
1.1014 droeschl 8093: # ------------------------------------------------- Get the title of a course
8094:
8095: sub current_course_title {
8096: return $env{ 'course.' . $env{'request.course.id'} . '.description' };
8097: }
1.301 www 8098: # ------------------------------------------------- Get the title of a resource
8099:
8100: sub gettitle {
8101: my $urlsymb=shift;
8102: my $symb=&symbread($urlsymb);
1.534 albertel 8103: if ($symb) {
1.620 albertel 8104: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 8105: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 8106: if (defined($cached)) {
8107: return $result;
8108: }
1.534 albertel 8109: my ($map,$resid,$url)=&decode_symb($symb);
8110: my $title='';
1.907 albertel 8111: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
8112: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
8113: } else {
8114: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
8115: &GDBM_READER(),0640)) {
8116: my $mapid=$bighash{'map_pc_'.&clutter($map)};
8117: $title=$bighash{'title_'.$mapid.'.'.$resid};
8118: untie(%bighash);
8119: }
1.534 albertel 8120: }
8121: $title=~s/\&colon\;/\:/gs;
8122: if ($title) {
1.599 albertel 8123: return &do_cache_new('title',$key,$title,600);
1.534 albertel 8124: }
8125: $urlsymb=$url;
8126: }
8127: my $title=&metadata($urlsymb,'title');
8128: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
8129: return $title;
1.301 www 8130: }
1.613 albertel 8131:
1.614 albertel 8132: sub get_slot {
8133: my ($which,$cnum,$cdom)=@_;
8134: if (!$cnum || !$cdom) {
1.790 albertel 8135: (undef,my $courseid)=&whichuser();
1.620 albertel 8136: $cdom=$env{'course.'.$courseid.'.domain'};
8137: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 8138: }
1.703 albertel 8139: my $key=join("\0",'slots',$cdom,$cnum,$which);
8140: my %slotinfo;
8141: if (exists($remembered{$key})) {
8142: $slotinfo{$which} = $remembered{$key};
8143: } else {
8144: %slotinfo=&get('slots',[$which],$cdom,$cnum);
8145: &Apache::lonhomework::showhash(%slotinfo);
8146: my ($tmp)=keys(%slotinfo);
8147: if ($tmp=~/^error:/) { return (); }
8148: $remembered{$key} = $slotinfo{$which};
8149: }
1.616 albertel 8150: if (ref($slotinfo{$which}) eq 'HASH') {
8151: return %{$slotinfo{$which}};
8152: }
8153: return $slotinfo{$which};
1.614 albertel 8154: }
1.31 www 8155: # ------------------------------------------------- Update symbolic store links
8156:
8157: sub symblist {
8158: my ($mapname,%newhash)=@_;
1.438 www 8159: $mapname=&deversion(&declutter($mapname));
1.31 www 8160: my %hash;
1.620 albertel 8161: if (($env{'request.course.fn'}) && (%newhash)) {
8162: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8163: &GDBM_WRCREAT(),0640)) {
1.1000 raeburn 8164: foreach my $url (keys(%newhash)) {
1.711 albertel 8165: next if ($url eq 'last_known'
8166: && $env{'form.no_update_last_known'});
8167: $hash{declutter($url)}=&encode_symb($mapname,
8168: $newhash{$url}->[1],
8169: $newhash{$url}->[0]);
1.191 harris41 8170: }
1.31 www 8171: if (untie(%hash)) {
8172: return 'ok';
8173: }
8174: }
8175: }
8176: return 'error';
1.212 www 8177: }
8178:
8179: # --------------------------------------------------------------- Verify a symb
8180:
8181: sub symbverify {
1.510 www 8182: my ($symb,$thisurl)=@_;
8183: my $thisfn=$thisurl;
1.439 www 8184: $thisfn=&declutter($thisfn);
1.215 www 8185: # direct jump to resource in page or to a sequence - will construct own symbs
8186: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
8187: # check URL part
1.409 www 8188: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 8189:
1.431 www 8190: unless ($url eq $thisfn) { return 0; }
1.213 www 8191:
1.216 www 8192: $symb=&symbclean($symb);
1.510 www 8193: $thisurl=&deversion($thisurl);
1.439 www 8194: $thisfn=&deversion($thisfn);
1.213 www 8195:
8196: my %bighash;
8197: my $okay=0;
1.431 www 8198:
1.620 albertel 8199: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8200: &GDBM_READER(),0640)) {
1.510 www 8201: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 8202: unless ($ids) {
1.510 www 8203: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 8204: }
8205: if ($ids) {
8206: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 8207: foreach my $id (split(/\,/,$ids)) {
8208: my ($mapid,$resid)=split(/\./,$id);
1.216 www 8209: if (
8210: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
8211: eq $symb) {
1.620 albertel 8212: if (($env{'request.role.adv'}) ||
1.800 albertel 8213: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 8214: $okay=1;
8215: }
8216: }
1.216 www 8217: }
8218: }
1.213 www 8219: untie(%bighash);
8220: }
8221: return $okay;
1.31 www 8222: }
8223:
1.210 www 8224: # --------------------------------------------------------------- Clean-up symb
8225:
8226: sub symbclean {
8227: my $symb=shift;
1.568 albertel 8228: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 8229: # remove version from map
8230: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 8231:
1.210 www 8232: # remove version from URL
8233: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 8234:
1.507 www 8235: # remove wrapper
8236:
1.510 www 8237: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 8238: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 8239: return $symb;
1.409 www 8240: }
8241:
8242: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 8243:
8244: sub encode_symb {
8245: my ($map,$resid,$url)=@_;
8246: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
8247: }
1.409 www 8248:
8249: sub decode_symb {
1.568 albertel 8250: my $symb=shift;
8251: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
8252: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 8253: return (&fixversion($map),$resid,&fixversion($url));
8254: }
8255:
8256: sub fixversion {
8257: my $fn=shift;
1.609 banghart 8258: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 8259: my %bighash;
8260: my $uri=&clutter($fn);
1.620 albertel 8261: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 8262: # is this cached?
1.599 albertel 8263: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 8264: if (defined($cached)) { return $result; }
8265: # unfortunately not cached, or expired
1.620 albertel 8266: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 8267: &GDBM_READER(),0640)) {
8268: if ($bighash{'version_'.$uri}) {
8269: my $version=$bighash{'version_'.$uri};
1.444 www 8270: unless (($version eq 'mostrecent') ||
8271: ($version==&getversion($uri))) {
1.440 www 8272: $uri=~s/\.(\w+)$/\.$version\.$1/;
8273: }
8274: }
8275: untie %bighash;
1.413 www 8276: }
1.599 albertel 8277: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 8278: }
8279:
8280: sub deversion {
8281: my $url=shift;
8282: $url=~s/\.\d+\.(\w+)$/\.$1/;
8283: return $url;
1.210 www 8284: }
8285:
1.31 www 8286: # ------------------------------------------------------ Return symb list entry
8287:
8288: sub symbread {
1.249 www 8289: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 8290: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 8291: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 8292: # no filename provided? try from environment
1.44 www 8293: unless ($thisfn) {
1.620 albertel 8294: if ($env{'request.symb'}) {
8295: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 8296: }
1.620 albertel 8297: $thisfn=$env{'request.filename'};
1.44 www 8298: }
1.569 albertel 8299: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 8300: # is that filename actually a symb? Verify, clean, and return
8301: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 8302: if (&symbverify($thisfn,$1)) {
1.620 albertel 8303: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 8304: }
1.242 www 8305: }
1.44 www 8306: $thisfn=declutter($thisfn);
1.31 www 8307: my %hash;
1.37 www 8308: my %bighash;
8309: my $syval='';
1.620 albertel 8310: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 8311: my $targetfn = $thisfn;
1.609 banghart 8312: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 8313: $targetfn = 'adm/wrapper/'.$thisfn;
8314: }
1.687 albertel 8315: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
8316: $targetfn=$1;
8317: }
1.620 albertel 8318: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 8319: &GDBM_READER(),0640)) {
1.481 raeburn 8320: $syval=$hash{$targetfn};
1.37 www 8321: untie(%hash);
8322: }
8323: # ---------------------------------------------------------- There was an entry
8324: if ($syval) {
1.601 albertel 8325: #unless ($syval=~/\_\d+$/) {
1.620 albertel 8326: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 8327: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8328: #return $env{$cache_str}='';
1.601 albertel 8329: #}
8330: #$syval.=$1;
8331: #}
1.37 www 8332: } else {
8333: # ------------------------------------------------------- Was not in symb table
1.620 albertel 8334: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 8335: &GDBM_READER(),0640)) {
1.37 www 8336: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 8337: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 8338: unless ($ids) {
8339: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 8340: }
8341: unless ($ids) {
8342: # alias?
8343: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 8344: }
1.37 www 8345: if ($ids) {
8346: # ------------------------------------------------------------------- Has ID(s)
8347: my @possibilities=split(/\,/,$ids);
1.39 www 8348: if ($#possibilities==0) {
8349: # ----------------------------------------------- There is only one possibility
1.37 www 8350: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 8351: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8352: $resid,$thisfn);
1.249 www 8353: } elsif (!$donotrecurse) {
1.39 www 8354: # ------------------------------------------ There is more than one possibility
8355: my $realpossible=0;
1.800 albertel 8356: foreach my $id (@possibilities) {
8357: my $file=$bighash{'src_'.$id};
1.39 www 8358: if (&allowed('bre',$file)) {
1.800 albertel 8359: my ($mapid,$resid)=split(/\./,$id);
1.39 www 8360: if ($bighash{'map_type_'.$mapid} ne 'page') {
8361: $realpossible++;
1.626 albertel 8362: $syval=&encode_symb($bighash{'map_id_'.$mapid},
8363: $resid,$thisfn);
1.39 www 8364: }
8365: }
1.191 harris41 8366: }
1.39 www 8367: if ($realpossible!=1) { $syval=''; }
1.249 www 8368: } else {
8369: $syval='';
1.37 www 8370: }
8371: }
8372: untie(%bighash)
1.481 raeburn 8373: }
1.31 www 8374: }
1.62 www 8375: if ($syval) {
1.620 albertel 8376: return $env{$cache_str}=$syval;
1.62 www 8377: }
1.31 www 8378: }
1.949 raeburn 8379: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 8380: return $env{$cache_str}='';
1.31 www 8381: }
8382:
8383: # ---------------------------------------------------------- Return random seed
8384:
1.32 www 8385: sub numval {
8386: my $txt=shift;
8387: $txt=~tr/A-J/0-9/;
8388: $txt=~tr/a-j/0-9/;
8389: $txt=~tr/K-T/0-9/;
8390: $txt=~tr/k-t/0-9/;
8391: $txt=~tr/U-Z/0-5/;
8392: $txt=~tr/u-z/0-5/;
8393: $txt=~s/\D//g;
1.564 albertel 8394: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 8395: return int($txt);
1.368 albertel 8396: }
8397:
1.484 albertel 8398: sub numval2 {
8399: my $txt=shift;
8400: $txt=~tr/A-J/0-9/;
8401: $txt=~tr/a-j/0-9/;
8402: $txt=~tr/K-T/0-9/;
8403: $txt=~tr/k-t/0-9/;
8404: $txt=~tr/U-Z/0-5/;
8405: $txt=~tr/u-z/0-5/;
8406: $txt=~s/\D//g;
8407: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8408: my $total;
8409: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 8410: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 8411: return int($total);
8412: }
8413:
1.575 albertel 8414: sub numval3 {
8415: use integer;
8416: my $txt=shift;
8417: $txt=~tr/A-J/0-9/;
8418: $txt=~tr/a-j/0-9/;
8419: $txt=~tr/K-T/0-9/;
8420: $txt=~tr/k-t/0-9/;
8421: $txt=~tr/U-Z/0-5/;
8422: $txt=~tr/u-z/0-5/;
8423: $txt=~s/\D//g;
8424: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
8425: my $total;
8426: foreach my $val (@txts) { $total+=$val; }
8427: if ($_64bit) { $total=(($total<<32)>>32); }
8428: return $total;
8429: }
8430:
1.675 albertel 8431: sub digest {
8432: my ($data)=@_;
8433: my $digest=&Digest::MD5::md5($data);
8434: my ($a,$b,$c,$d)=unpack("iiii",$digest);
8435: my ($e,$f);
8436: {
8437: use integer;
8438: $e=($a+$b);
8439: $f=($c+$d);
8440: if ($_64bit) {
8441: $e=(($e<<32)>>32);
8442: $f=(($f<<32)>>32);
8443: }
8444: }
8445: if (wantarray) {
8446: return ($e,$f);
8447: } else {
8448: my $g;
8449: {
8450: use integer;
8451: $g=($e+$f);
8452: if ($_64bit) {
8453: $g=(($g<<32)>>32);
8454: }
8455: }
8456: return $g;
8457: }
8458: }
8459:
1.368 albertel 8460: sub latest_rnd_algorithm_id {
1.675 albertel 8461: return '64bit5';
1.366 albertel 8462: }
1.32 www 8463:
1.503 albertel 8464: sub get_rand_alg {
8465: my ($courseid)=@_;
1.790 albertel 8466: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 8467: if ($courseid) {
1.620 albertel 8468: return $env{"course.$courseid.rndseed"};
1.503 albertel 8469: }
8470: return &latest_rnd_algorithm_id();
8471: }
8472:
1.562 albertel 8473: sub validCODE {
8474: my ($CODE)=@_;
8475: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
8476: return 0;
8477: }
8478:
1.491 albertel 8479: sub getCODE {
1.620 albertel 8480: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 8481: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
8482: defined($Apache::lonhomework::parsing_a_task) ) &&
8483: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 8484: return $Apache::lonhomework::history{'resource.CODE'};
8485: }
8486: return undef;
8487: }
8488:
1.31 www 8489: sub rndseed {
1.155 albertel 8490: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 8491: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 8492: if (!defined($symb)) {
1.366 albertel 8493: unless ($symb=$wsymb) { return time; }
8494: }
8495: if (!$courseid) { $courseid=$wcourseid; }
8496: if (!$domain) { $domain=$wdomain; }
8497: if (!$username) { $username=$wusername }
1.503 albertel 8498: my $which=&get_rand_alg();
1.803 albertel 8499:
1.491 albertel 8500: if (defined(&getCODE())) {
1.675 albertel 8501: if ($which eq '64bit5') {
8502: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
8503: } elsif ($which eq '64bit4') {
1.575 albertel 8504: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
8505: } else {
8506: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
8507: }
1.675 albertel 8508: } elsif ($which eq '64bit5') {
8509: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 8510: } elsif ($which eq '64bit4') {
8511: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 8512: } elsif ($which eq '64bit3') {
8513: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 8514: } elsif ($which eq '64bit2') {
8515: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 8516: } elsif ($which eq '64bit') {
8517: return &rndseed_64bit($symb,$courseid,$domain,$username);
8518: }
8519: return &rndseed_32bit($symb,$courseid,$domain,$username);
8520: }
8521:
8522: sub rndseed_32bit {
8523: my ($symb,$courseid,$domain,$username)=@_;
8524: {
8525: use integer;
8526: my $symbchck=unpack("%32C*",$symb) << 27;
8527: my $symbseed=numval($symb) << 22;
8528: my $namechck=unpack("%32C*",$username) << 17;
8529: my $nameseed=numval($username) << 12;
8530: my $domainseed=unpack("%32C*",$domain) << 7;
8531: my $courseseed=unpack("%32C*",$courseid);
8532: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 8533: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8534: #&logthis("rndseed :$num:$symb");
1.564 albertel 8535: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 8536: return $num;
8537: }
8538: }
8539:
8540: sub rndseed_64bit {
8541: my ($symb,$courseid,$domain,$username)=@_;
8542: {
8543: use integer;
8544: my $symbchck=unpack("%32S*",$symb) << 21;
8545: my $symbseed=numval($symb) << 10;
8546: my $namechck=unpack("%32S*",$username);
8547:
8548: my $nameseed=numval($username) << 21;
8549: my $domainseed=unpack("%32S*",$domain) << 10;
8550: my $courseseed=unpack("%32S*",$courseid);
8551:
8552: my $num1=$symbchck+$symbseed+$namechck;
8553: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8554: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8555: #&logthis("rndseed :$num:$symb");
1.564 albertel 8556: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 8557: return "$num1,$num2";
1.155 albertel 8558: }
1.366 albertel 8559: }
8560:
1.443 albertel 8561: sub rndseed_64bit2 {
8562: my ($symb,$courseid,$domain,$username)=@_;
8563: {
8564: use integer;
8565: # strings need to be an even # of cahracters long, it it is odd the
8566: # last characters gets thrown away
8567: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8568: my $symbseed=numval($symb) << 10;
8569: my $namechck=unpack("%32S*",$username.' ');
8570:
8571: my $nameseed=numval($username) << 21;
1.501 albertel 8572: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8573: my $courseseed=unpack("%32S*",$courseid.' ');
8574:
8575: my $num1=$symbchck+$symbseed+$namechck;
8576: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8577: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8578: #&logthis("rndseed :$num:$symb");
1.803 albertel 8579: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 8580: return "$num1,$num2";
8581: }
8582: }
8583:
8584: sub rndseed_64bit3 {
8585: my ($symb,$courseid,$domain,$username)=@_;
8586: {
8587: use integer;
8588: # strings need to be an even # of cahracters long, it it is odd the
8589: # last characters gets thrown away
8590: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8591: my $symbseed=numval2($symb) << 10;
8592: my $namechck=unpack("%32S*",$username.' ');
8593:
8594: my $nameseed=numval2($username) << 21;
1.443 albertel 8595: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8596: my $courseseed=unpack("%32S*",$courseid.' ');
8597:
8598: my $num1=$symbchck+$symbseed+$namechck;
8599: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8600: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8601: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 8602: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8603:
1.503 albertel 8604: return "$num1:$num2";
1.443 albertel 8605: }
8606: }
8607:
1.575 albertel 8608: sub rndseed_64bit4 {
8609: my ($symb,$courseid,$domain,$username)=@_;
8610: {
8611: use integer;
8612: # strings need to be an even # of cahracters long, it it is odd the
8613: # last characters gets thrown away
8614: my $symbchck=unpack("%32S*",$symb.' ') << 21;
8615: my $symbseed=numval3($symb) << 10;
8616: my $namechck=unpack("%32S*",$username.' ');
8617:
8618: my $nameseed=numval3($username) << 21;
8619: my $domainseed=unpack("%32S*",$domain.' ') << 10;
8620: my $courseseed=unpack("%32S*",$courseid.' ');
8621:
8622: my $num1=$symbchck+$symbseed+$namechck;
8623: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 8624: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
8625: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 8626: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
8627:
8628: return "$num1:$num2";
8629: }
8630: }
8631:
1.675 albertel 8632: sub rndseed_64bit5 {
8633: my ($symb,$courseid,$domain,$username)=@_;
8634: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
8635: return "$num1:$num2";
8636: }
8637:
1.366 albertel 8638: sub rndseed_CODE_64bit {
8639: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 8640: {
1.366 albertel 8641: use integer;
1.443 albertel 8642: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 8643: my $symbseed=numval2($symb);
1.491 albertel 8644: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8645: my $CODEseed=numval(&getCODE());
1.443 albertel 8646: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 8647: my $num1=$symbseed+$CODEchck;
8648: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8649: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8650: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 8651: if ($_64bit) { $num1=(($num1<<32)>>32); }
8652: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 8653: return "$num1:$num2";
1.366 albertel 8654: }
8655: }
8656:
1.575 albertel 8657: sub rndseed_CODE_64bit4 {
8658: my ($symb,$courseid,$domain,$username)=@_;
8659: {
8660: use integer;
8661: my $symbchck=unpack("%32S*",$symb.' ') << 16;
8662: my $symbseed=numval3($symb);
8663: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
8664: my $CODEseed=numval3(&getCODE());
8665: my $courseseed=unpack("%32S*",$courseid.' ');
8666: my $num1=$symbseed+$CODEchck;
8667: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 8668: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
8669: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 8670: if ($_64bit) { $num1=(($num1<<32)>>32); }
8671: if ($_64bit) { $num2=(($num2<<32)>>32); }
8672: return "$num1:$num2";
8673: }
8674: }
8675:
1.675 albertel 8676: sub rndseed_CODE_64bit5 {
8677: my ($symb,$courseid,$domain,$username)=@_;
8678: my $code = &getCODE();
8679: my ($num1,$num2)=&digest("$symb,$courseid,$code");
8680: return "$num1:$num2";
8681: }
8682:
1.366 albertel 8683: sub setup_random_from_rndseed {
8684: my ($rndseed)=@_;
1.503 albertel 8685: if ($rndseed =~/([,:])/) {
8686: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 8687: &Math::Random::random_set_seed(abs($num1),abs($num2));
8688: } else {
8689: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 8690: }
1.36 albertel 8691: }
8692:
1.474 albertel 8693: sub latest_receipt_algorithm_id {
1.835 albertel 8694: return 'receipt3';
1.474 albertel 8695: }
8696:
1.480 www 8697: sub recunique {
8698: my $fucourseid=shift;
8699: my $unique;
1.835 albertel 8700: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
8701: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8702: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 8703: } else {
8704: $unique=$perlvar{'lonReceipt'};
8705: }
8706: return unpack("%32C*",$unique);
8707: }
8708:
8709: sub recprefix {
8710: my $fucourseid=shift;
8711: my $prefix;
1.835 albertel 8712: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
8713: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 8714: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 8715: } else {
8716: $prefix=$perlvar{'lonHostID'};
8717: }
8718: return unpack("%32C*",$prefix);
8719: }
8720:
1.76 www 8721: sub ireceipt {
1.474 albertel 8722: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 8723:
8724: my $return =&recprefix($fucourseid).'-';
8725:
8726: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
8727: $env{'request.state'} eq 'construct') {
8728: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
8729: return $return;
8730: }
8731:
1.76 www 8732: my $cuname=unpack("%32C*",$funame);
8733: my $cudom=unpack("%32C*",$fudom);
8734: my $cucourseid=unpack("%32C*",$fucourseid);
8735: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 8736: my $cunique=&recunique($fucourseid);
1.474 albertel 8737: my $cpart=unpack("%32S*",$part);
1.835 albertel 8738: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
8739:
1.790 albertel 8740: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 8741:
8742: $return.= ($cunique%$cuname+
8743: $cunique%$cudom+
8744: $cusymb%$cuname+
8745: $cusymb%$cudom+
8746: $cucourseid%$cuname+
8747: $cucourseid%$cudom+
8748: $cpart%$cuname+
8749: $cpart%$cudom);
8750: } else {
8751: $return.= ($cunique%$cuname+
8752: $cunique%$cudom+
8753: $cusymb%$cuname+
8754: $cusymb%$cudom+
8755: $cucourseid%$cuname+
8756: $cucourseid%$cudom);
8757: }
8758: return $return;
1.76 www 8759: }
8760:
8761: sub receipt {
1.474 albertel 8762: my ($part)=@_;
1.790 albertel 8763: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 8764: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 8765: }
1.260 ng 8766:
1.790 albertel 8767: sub whichuser {
8768: my ($passedsymb)=@_;
8769: my ($symb,$courseid,$domain,$name,$publicuser);
8770: if (defined($env{'form.grade_symb'})) {
8771: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
8772: my $allowed=&allowed('vgr',$tmp_courseid);
8773: if (!$allowed &&
8774: exists($env{'request.course.sec'}) &&
8775: $env{'request.course.sec'} !~ /^\s*$/) {
8776: $allowed=&allowed('vgr',$tmp_courseid.
8777: '/'.$env{'request.course.sec'});
8778: }
8779: if ($allowed) {
8780: ($symb)=&get_env_multiple('form.grade_symb');
8781: $courseid=$tmp_courseid;
8782: ($domain)=&get_env_multiple('form.grade_domain');
8783: ($name)=&get_env_multiple('form.grade_username');
8784: return ($symb,$courseid,$domain,$name,$publicuser);
8785: }
8786: }
8787: if (!$passedsymb) {
8788: $symb=&symbread();
8789: } else {
8790: $symb=$passedsymb;
8791: }
8792: $courseid=$env{'request.course.id'};
8793: $domain=$env{'user.domain'};
8794: $name=$env{'user.name'};
8795: if ($name eq 'public' && $domain eq 'public') {
8796: if (!defined($env{'form.username'})) {
8797: $env{'form.username'}.=time.rand(10000000);
8798: }
8799: $name.=$env{'form.username'};
8800: }
8801: return ($symb,$courseid,$domain,$name,$publicuser);
8802:
8803: }
8804:
1.36 albertel 8805: # ------------------------------------------------------------ Serves up a file
1.472 albertel 8806: # returns either the contents of the file or
8807: # -1 if the file doesn't exist
1.481 raeburn 8808: #
8809: # if the target is a file that was uploaded via DOCS,
8810: # a check will be made to see if a current copy exists on the local server,
8811: # if it does this will be served, otherwise a copy will be retrieved from
8812: # the home server for the course and stored in /home/httpd/html/userfiles on
8813: # the local server.
1.472 albertel 8814:
1.36 albertel 8815: sub getfile {
1.538 albertel 8816: my ($file) = @_;
1.609 banghart 8817: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 8818: &repcopy($file);
8819: return &readfile($file);
8820: }
8821:
8822: sub repcopy_userfile {
8823: my ($file)=@_;
1.609 banghart 8824: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 8825: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 8826: my ($cdom,$cnum,$filename) =
1.811 albertel 8827: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 8828: my $uri="/uploaded/$cdom/$cnum/$filename";
8829: if (-e "$file") {
1.828 www 8830: # we already have a local copy, check it out
1.538 albertel 8831: my @fileinfo = stat($file);
1.828 www 8832: my $rtncode;
8833: my $info;
1.538 albertel 8834: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 8835: if ($lwpresp ne 'ok') {
1.828 www 8836: # there is no such file anymore, even though we had a local copy
1.482 albertel 8837: if ($rtncode eq '404') {
1.538 albertel 8838: unlink($file);
1.482 albertel 8839: }
8840: return -1;
8841: }
8842: if ($info < $fileinfo[9]) {
1.828 www 8843: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 8844: return 'ok';
1.828 www 8845: } else {
8846: # the file is outdated, get rid of it
8847: unlink($file);
1.482 albertel 8848: }
1.828 www 8849: }
8850: # one way or the other, at this point, we don't have the file
8851: # construct the correct path for the file
8852: my @parts = ($cdom,$cnum);
8853: if ($filename =~ m|^(.+)/[^/]+$|) {
8854: push @parts, split(/\//,$1);
8855: }
8856: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
8857: foreach my $part (@parts) {
8858: $path .= '/'.$part;
8859: if (!-e $path) {
8860: mkdir($path,0770);
1.482 albertel 8861: }
8862: }
1.828 www 8863: # now the path exists for sure
8864: # get a user agent
8865: my $ua=new LWP::UserAgent;
8866: my $transferfile=$file.'.in.transfer';
8867: # FIXME: this should flock
8868: if (-e $transferfile) { return 'ok'; }
8869: my $request;
8870: $uri=~s/^\///;
1.980 raeburn 8871: my $homeserver = &homeserver($cnum,$cdom);
8872: my $protocol = $protocol{$homeserver};
8873: $protocol = 'http' if ($protocol ne 'https');
8874: $request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
1.828 www 8875: my $response=$ua->request($request,$transferfile);
8876: # did it work?
8877: if ($response->is_error()) {
8878: unlink($transferfile);
8879: &logthis("Userfile repcopy failed for $uri");
8880: return -1;
8881: }
8882: # worked, rename the transfer file
8883: rename($transferfile,$file);
1.607 raeburn 8884: return 'ok';
1.481 raeburn 8885: }
8886:
1.517 albertel 8887: sub tokenwrapper {
8888: my $uri=shift;
1.980 raeburn 8889: $uri=~s|^https?\://([^/]+)||;
1.552 albertel 8890: $uri=~s|^/||;
1.620 albertel 8891: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 8892: my $token=$1;
1.552 albertel 8893: my (undef,$udom,$uname,$file)=split('/',$uri,4);
8894: if ($udom && $uname && $file) {
8895: $file=~s|(\?\.*)*$||;
1.949 raeburn 8896: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.980 raeburn 8897: my $homeserver = &homeserver($uname,$udom);
8898: my $protocol = $protocol{$homeserver};
8899: $protocol = 'http' if ($protocol ne 'https');
8900: return $protocol.'://'.&hostname($homeserver).'/'.$uri.
1.517 albertel 8901: (($uri=~/\?/)?'&':'?').'token='.$token.
8902: '&tokenissued='.$perlvar{'lonHostID'};
8903: } else {
8904: return '/adm/notfound.html';
8905: }
8906: }
8907:
1.828 www 8908: # call with reqtype HEAD: get last modification time
8909: # call with reqtype GET: get the file contents
8910: # Do not call this with reqtype GET for large files! It loads everything into memory
8911: #
1.481 raeburn 8912: sub getuploaded {
8913: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
8914: $uri=~s/^\///;
1.980 raeburn 8915: my $homeserver = &homeserver($cnum,$cdom);
8916: my $protocol = $protocol{$homeserver};
8917: $protocol = 'http' if ($protocol ne 'https');
8918: $uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
1.481 raeburn 8919: my $ua=new LWP::UserAgent;
8920: my $request=new HTTP::Request($reqtype,$uri);
8921: my $response=$ua->request($request);
8922: $$rtncode = $response->code;
1.482 albertel 8923: if (! $response->is_success()) {
8924: return 'failed';
8925: }
8926: if ($reqtype eq 'HEAD') {
1.486 www 8927: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 8928: } elsif ($reqtype eq 'GET') {
8929: $$info = $response->content;
1.472 albertel 8930: }
1.482 albertel 8931: return 'ok';
1.36 albertel 8932: }
8933:
1.481 raeburn 8934: sub readfile {
8935: my $file = shift;
8936: if ( (! -e $file ) || ($file eq '') ) { return -1; };
8937: my $fh;
8938: open($fh,"<$file");
8939: my $a='';
1.800 albertel 8940: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 8941: return $a;
8942: }
8943:
1.36 albertel 8944: sub filelocation {
1.590 banghart 8945: my ($dir,$file) = @_;
8946: my $location;
8947: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 8948:
8949: if ($file =~ m-^/adm/-) {
8950: $file=~s-^/adm/wrapper/-/-;
8951: $file=~s-^/adm/coursedocs/showdoc/-/-;
8952: }
1.882 albertel 8953:
1.590 banghart 8954: if ($file=~m:^/~:) { # is a contruction space reference
8955: $location = $file;
8956: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 8957: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 8958: # is a correct contruction space reference
8959: $location = $file;
1.956 raeburn 8960: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
8961: $location = $file;
1.609 banghart 8962: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 8963: my ($udom,$uname,$filename)=
1.811 albertel 8964: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 8965: my $home=&homeserver($uname,$udom);
8966: my $is_me=0;
8967: my @ids=¤t_machine_ids();
8968: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
8969: if ($is_me) {
1.955 raeburn 8970: $location=&propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 8971: } else {
8972: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
8973: $udom.'/'.$uname.'/'.$filename;
8974: }
1.882 albertel 8975: } elsif ($file =~ m-^/adm/-) {
8976: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 8977: } else {
8978: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
8979: $file=~s:^/res/:/:;
8980: if ( !( $file =~ m:^/:) ) {
8981: $location = $dir. '/'.$file;
8982: } else {
8983: $location = '/home/httpd/html/res'.$file;
8984: }
1.59 albertel 8985: }
1.590 banghart 8986: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 8987: while ($location=~m{/\.\./}) {
8988: if ($location =~ m{/[^/]+/\.\./}) {
8989: $location=~ s{/[^/]+/\.\./}{/}g;
8990: } else {
8991: $location=~ s{/\.\./}{/}g;
8992: }
8993: } #remove dir/..
1.590 banghart 8994: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
8995: return $location;
1.46 www 8996: }
1.36 albertel 8997:
1.46 www 8998: sub hreflocation {
8999: my ($dir,$file)=@_;
1.980 raeburn 9000: unless (($file=~m-^https?\://-i) || ($file=~m-^/-)) {
1.666 albertel 9001: $file=filelocation($dir,$file);
1.700 albertel 9002: } elsif ($file=~m-^/adm/-) {
9003: $file=~s-^/adm/wrapper/-/-;
9004: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 9005: }
9006: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
9007: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 9008: } elsif ($file=~m-/home/($match_username)/public_html/-) {
9009: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 9010: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 9011: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 9012: -/uploaded/$1/$2/-x;
1.46 www 9013: }
1.913 albertel 9014: if ($file=~ m{^/userfiles/}) {
9015: $file =~ s{^/userfiles/}{/uploaded/};
9016: }
1.462 albertel 9017: return $file;
1.465 albertel 9018: }
9019:
9020: sub current_machine_domains {
1.853 albertel 9021: return &machine_domains(&hostname($perlvar{'lonHostID'}));
9022: }
9023:
9024: sub machine_domains {
9025: my ($hostname) = @_;
1.465 albertel 9026: my @domains;
1.838 albertel 9027: my %hostname = &all_hostnames();
1.465 albertel 9028: while( my($id, $name) = each(%hostname)) {
1.467 matthew 9029: # &logthis("-$id-$name-$hostname-");
1.465 albertel 9030: if ($hostname eq $name) {
1.844 albertel 9031: push(@domains,&host_domain($id));
1.465 albertel 9032: }
9033: }
9034: return @domains;
9035: }
9036:
9037: sub current_machine_ids {
1.853 albertel 9038: return &machine_ids(&hostname($perlvar{'lonHostID'}));
9039: }
9040:
9041: sub machine_ids {
9042: my ($hostname) = @_;
9043: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 9044: my @ids;
1.888 albertel 9045: my %name_to_host = &all_names();
1.889 albertel 9046: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
9047: return @{ $name_to_host{$hostname} };
9048: }
9049: return;
1.31 www 9050: }
9051:
1.824 raeburn 9052: sub additional_machine_domains {
9053: my @domains;
9054: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
9055: while( my $line = <$fh>) {
9056: $line =~ s/\s//g;
9057: push(@domains,$line);
9058: }
9059: return @domains;
9060: }
9061:
9062: sub default_login_domain {
9063: my $domain = $perlvar{'lonDefDomain'};
9064: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
9065: foreach my $posdom (¤t_machine_domains(),
9066: &additional_machine_domains()) {
9067: if (lc($posdom) eq lc($testdomain)) {
9068: $domain=$posdom;
9069: last;
9070: }
9071: }
9072: return $domain;
9073: }
9074:
1.31 www 9075: # ------------------------------------------------------------- Declutters URLs
9076:
9077: sub declutter {
9078: my $thisfn=shift;
1.569 albertel 9079: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 9080: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 9081: $thisfn=~s/^\///;
1.697 albertel 9082: $thisfn=~s|^adm/wrapper/||;
9083: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 9084: $thisfn=~s/^res\///;
1.235 www 9085: $thisfn=~s/\?.+$//;
1.268 www 9086: return $thisfn;
9087: }
9088:
9089: # ------------------------------------------------------------- Clutter up URLs
9090:
9091: sub clutter {
9092: my $thisfn='/'.&declutter(shift);
1.887 albertel 9093: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 9094: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 9095: $thisfn='/res'.$thisfn;
9096: }
1.694 albertel 9097: if ($thisfn !~m|/adm|) {
1.695 albertel 9098: if ($thisfn =~ m|/ext/|) {
1.694 albertel 9099: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 9100: } else {
9101: my ($ext) = ($thisfn =~ /\.(\w+)$/);
9102: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 9103: if ($embstyle eq 'ssi'
9104: || ($embstyle eq 'hdn')
9105: || ($embstyle eq 'rat')
9106: || ($embstyle eq 'prv')
9107: || ($embstyle eq 'ign')) {
9108: #do nothing with these
9109: } elsif (($embstyle eq 'img')
1.695 albertel 9110: || ($embstyle eq 'emb')
9111: || ($embstyle eq 'wrp')) {
9112: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 9113: } elsif ($embstyle eq 'unk'
9114: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 9115: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 9116: } else {
1.718 www 9117: # &logthis("Got a blank emb style");
1.695 albertel 9118: }
1.694 albertel 9119: }
9120: }
1.31 www 9121: return $thisfn;
1.12 www 9122: }
9123:
1.787 albertel 9124: sub clutter_with_no_wrapper {
9125: my $uri = &clutter(shift);
9126: if ($uri =~ m-^/adm/-) {
9127: $uri =~ s-^/adm/wrapper/-/-;
9128: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
9129: }
9130: return $uri;
9131: }
9132:
1.557 albertel 9133: sub freeze_escape {
9134: my ($value)=@_;
9135: if (ref($value)) {
9136: $value=&nfreeze($value);
9137: return '__FROZEN__'.&escape($value);
9138: }
9139: return &escape($value);
9140: }
9141:
1.11 www 9142:
1.557 albertel 9143: sub thaw_unescape {
9144: my ($value)=@_;
9145: if ($value =~ /^__FROZEN__/) {
9146: substr($value,0,10,undef);
9147: $value=&unescape($value);
9148: return &thaw($value);
9149: }
9150: return &unescape($value);
9151: }
9152:
1.436 albertel 9153: sub correct_line_ends {
9154: my ($result)=@_;
9155: $$result =~s/\r\n/\n/mg;
9156: $$result =~s/\r/\n/mg;
1.415 albertel 9157: }
1.1 albertel 9158: # ================================================================ Main Program
9159:
1.184 www 9160: sub goodbye {
1.204 albertel 9161: &logthis("Starting Shut down");
1.443 albertel 9162: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 9163: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 9164: #converted
1.599 albertel 9165: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 9166: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
9167: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
9168: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 9169: #1.1 only
1.870 albertel 9170: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
9171: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
9172: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
9173: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
9174: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 9175: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
9176: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 9177: &flushcourselogs();
9178: &logthis("Shutting down");
9179: }
9180:
1.852 albertel 9181: sub get_dns {
1.869 albertel 9182: my ($url,$func,$ignore_cache) = @_;
9183: if (!$ignore_cache) {
9184: my ($content,$cached)=
9185: &Apache::lonnet::is_cached_new('dns',$url);
9186: if ($cached) {
9187: &$func($content);
9188: return;
9189: }
9190: }
9191:
9192: my %alldns;
1.852 albertel 9193: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9194: foreach my $dns (<$config>) {
9195: next if ($dns !~ /^\^(\S*)/x);
1.979 raeburn 9196: my $line = $1;
9197: my ($host,$protocol) = split(/:/,$line);
9198: if ($protocol ne 'https') {
9199: $protocol = 'http';
9200: }
9201: $alldns{$host} = $protocol;
1.869 albertel 9202: }
9203: while (%alldns) {
9204: my ($dns) = keys(%alldns);
1.852 albertel 9205: my $ua=new LWP::UserAgent;
1.979 raeburn 9206: my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
1.852 albertel 9207: my $response=$ua->request($request);
1.979 raeburn 9208: delete($alldns{$dns});
1.852 albertel 9209: next if ($response->is_error());
9210: my @content = split("\n",$response->content);
1.869 albertel 9211: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 9212: &$func(\@content);
1.869 albertel 9213: return;
1.852 albertel 9214: }
9215: close($config);
1.871 albertel 9216: my $which = (split('/',$url))[3];
9217: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
9218: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 9219: my @content = <$config>;
9220: &$func(\@content);
9221: return;
1.852 albertel 9222: }
1.327 albertel 9223: # ------------------------------------------------------------ Read domain file
9224: {
1.852 albertel 9225: my $loaded;
1.846 albertel 9226: my %domain;
9227:
1.852 albertel 9228: sub parse_domain_tab {
9229: my ($lines) = @_;
9230: foreach my $line (@$lines) {
9231: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 9232:
1.846 albertel 9233: chomp($line);
1.852 albertel 9234: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 9235: my %this_domain;
9236: foreach my $field ('description', 'auth_def', 'auth_arg_def',
9237: 'lang_def', 'city', 'longi', 'lati',
9238: 'primary') {
9239: $this_domain{$field} = shift(@elements);
9240: }
9241: $domain{$name} = \%this_domain;
1.852 albertel 9242: }
9243: }
1.864 albertel 9244:
9245: sub reset_domain_info {
9246: undef($loaded);
9247: undef(%domain);
9248: }
9249:
1.852 albertel 9250: sub load_domain_tab {
1.869 albertel 9251: my ($ignore_cache) = @_;
9252: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 9253: my $fh;
9254: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
9255: my @lines = <$fh>;
9256: &parse_domain_tab(\@lines);
1.448 albertel 9257: }
1.852 albertel 9258: close($fh);
9259: $loaded = 1;
1.327 albertel 9260: }
1.846 albertel 9261:
9262: sub domain {
1.852 albertel 9263: &load_domain_tab() if (!$loaded);
9264:
1.846 albertel 9265: my ($name,$what) = @_;
9266: return if ( !exists($domain{$name}) );
9267:
9268: if (!$what) {
9269: return $domain{$name}{'description'};
9270: }
9271: return $domain{$name}{$what};
9272: }
1.974 raeburn 9273:
9274: sub domain_info {
9275: &load_domain_tab() if (!$loaded);
9276: return %domain;
9277: }
9278:
1.327 albertel 9279: }
9280:
9281:
1.1 albertel 9282: # ------------------------------------------------------------- Read hosts file
9283: {
1.838 albertel 9284: my %hostname;
1.844 albertel 9285: my %hostdom;
1.845 albertel 9286: my %libserv;
1.852 albertel 9287: my $loaded;
1.888 albertel 9288: my %name_to_host;
1.852 albertel 9289:
9290: sub parse_hosts_tab {
9291: my ($file) = @_;
9292: foreach my $configline (@$file) {
9293: next if ($configline =~ /^(\#|\s*$ )/x);
9294: next if ($configline =~ /^\^/);
9295: chomp($configline);
1.968 raeburn 9296: my ($id,$domain,$role,$name,$protocol)=split(/:/,$configline);
1.852 albertel 9297: $name=~s/\s//g;
9298: if ($id && $domain && $role && $name) {
9299: $hostname{$id}=$name;
1.888 albertel 9300: push(@{$name_to_host{$name}}, $id);
1.852 albertel 9301: $hostdom{$id}=$domain;
9302: if ($role eq 'library') { $libserv{$id}=$name; }
1.969 raeburn 9303: if (defined($protocol)) {
9304: if ($protocol eq 'https') {
9305: $protocol{$id} = $protocol;
9306: } else {
9307: $protocol{$id} = 'http';
9308: }
1.968 raeburn 9309: } else {
1.969 raeburn 9310: $protocol{$id} = 'http';
1.968 raeburn 9311: }
1.852 albertel 9312: }
9313: }
9314: }
1.864 albertel 9315:
9316: sub reset_hosts_info {
1.897 albertel 9317: &purge_remembered();
1.864 albertel 9318: &reset_domain_info();
9319: &reset_hosts_ip_info();
1.892 albertel 9320: undef(%name_to_host);
1.864 albertel 9321: undef(%hostname);
9322: undef(%hostdom);
9323: undef(%libserv);
9324: undef($loaded);
9325: }
1.1 albertel 9326:
1.852 albertel 9327: sub load_hosts_tab {
1.869 albertel 9328: my ($ignore_cache) = @_;
9329: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 9330: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
9331: my @config = <$config>;
9332: &parse_hosts_tab(\@config);
9333: close($config);
9334: $loaded=1;
1.1 albertel 9335: }
1.852 albertel 9336:
1.838 albertel 9337: sub hostname {
1.852 albertel 9338: &load_hosts_tab() if (!$loaded);
9339:
1.838 albertel 9340: my ($lonid) = @_;
9341: return $hostname{$lonid};
9342: }
1.845 albertel 9343:
1.838 albertel 9344: sub all_hostnames {
1.852 albertel 9345: &load_hosts_tab() if (!$loaded);
9346:
1.838 albertel 9347: return %hostname;
9348: }
1.845 albertel 9349:
1.888 albertel 9350: sub all_names {
9351: &load_hosts_tab() if (!$loaded);
9352:
9353: return %name_to_host;
9354: }
9355:
1.974 raeburn 9356: sub all_host_domain {
9357: &load_hosts_tab() if (!$loaded);
9358: return %hostdom;
9359: }
9360:
1.845 albertel 9361: sub is_library {
1.852 albertel 9362: &load_hosts_tab() if (!$loaded);
9363:
1.845 albertel 9364: return exists($libserv{$_[0]});
9365: }
9366:
9367: sub all_library {
1.852 albertel 9368: &load_hosts_tab() if (!$loaded);
9369:
1.845 albertel 9370: return %libserv;
9371: }
9372:
1.841 albertel 9373: sub get_servers {
1.852 albertel 9374: &load_hosts_tab() if (!$loaded);
9375:
1.841 albertel 9376: my ($domain,$type) = @_;
9377: my %possible_hosts = ($type eq 'library') ? %libserv
9378: : %hostname;
9379: my %result;
1.842 albertel 9380: if (ref($domain) eq 'ARRAY') {
9381: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 9382: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 9383: $result{$host} = $hostname;
9384: }
9385: }
9386: } else {
9387: while ( my ($host,$hostname) = each(%possible_hosts)) {
9388: if ($hostdom{$host} eq $domain) {
9389: $result{$host} = $hostname;
9390: }
1.841 albertel 9391: }
9392: }
9393: return %result;
9394: }
1.845 albertel 9395:
1.844 albertel 9396: sub host_domain {
1.852 albertel 9397: &load_hosts_tab() if (!$loaded);
9398:
1.844 albertel 9399: my ($lonid) = @_;
9400: return $hostdom{$lonid};
9401: }
9402:
1.841 albertel 9403: sub all_domains {
1.852 albertel 9404: &load_hosts_tab() if (!$loaded);
9405:
1.841 albertel 9406: my %seen;
9407: my @uniq = grep(!$seen{$_}++, values(%hostdom));
9408: return @uniq;
9409: }
1.1 albertel 9410: }
9411:
1.847 albertel 9412: {
9413: my %iphost;
1.856 albertel 9414: my %name_to_ip;
9415: my %lonid_to_ip;
1.869 albertel 9416:
1.847 albertel 9417: sub get_hosts_from_ip {
9418: my ($ip) = @_;
9419: my %iphosts = &get_iphost();
9420: if (ref($iphosts{$ip})) {
9421: return @{$iphosts{$ip}};
9422: }
9423: return;
1.839 albertel 9424: }
1.864 albertel 9425:
9426: sub reset_hosts_ip_info {
9427: undef(%iphost);
9428: undef(%name_to_ip);
9429: undef(%lonid_to_ip);
9430: }
1.856 albertel 9431:
9432: sub get_host_ip {
9433: my ($lonid) = @_;
9434: if (exists($lonid_to_ip{$lonid})) {
9435: return $lonid_to_ip{$lonid};
9436: }
9437: my $name=&hostname($lonid);
9438: my $ip = gethostbyname($name);
9439: return if (!$ip || length($ip) ne 4);
9440: $ip=inet_ntoa($ip);
9441: $name_to_ip{$name} = $ip;
9442: $lonid_to_ip{$lonid} = $ip;
9443: return $ip;
9444: }
1.847 albertel 9445:
9446: sub get_iphost {
1.869 albertel 9447: my ($ignore_cache) = @_;
1.894 albertel 9448:
1.869 albertel 9449: if (!$ignore_cache) {
9450: if (%iphost) {
9451: return %iphost;
9452: }
9453: my ($ip_info,$cached)=
9454: &Apache::lonnet::is_cached_new('iphost','iphost');
9455: if ($cached) {
9456: %iphost = %{$ip_info->[0]};
9457: %name_to_ip = %{$ip_info->[1]};
9458: %lonid_to_ip = %{$ip_info->[2]};
9459: return %iphost;
9460: }
9461: }
1.894 albertel 9462:
9463: # get yesterday's info for fallback
9464: my %old_name_to_ip;
9465: my ($ip_info,$cached)=
9466: &Apache::lonnet::is_cached_new('iphost','iphost');
9467: if ($cached) {
9468: %old_name_to_ip = %{$ip_info->[1]};
9469: }
9470:
1.888 albertel 9471: my %name_to_host = &all_names();
9472: foreach my $name (keys(%name_to_host)) {
1.847 albertel 9473: my $ip;
9474: if (!exists($name_to_ip{$name})) {
9475: $ip = gethostbyname($name);
9476: if (!$ip || length($ip) ne 4) {
1.894 albertel 9477: if (defined($old_name_to_ip{$name})) {
9478: $ip = $old_name_to_ip{$name};
9479: &logthis("Can't find $name defaulting to old $ip");
9480: } else {
9481: &logthis("Name $name no IP found");
9482: next;
9483: }
9484: } else {
9485: $ip=inet_ntoa($ip);
1.847 albertel 9486: }
9487: $name_to_ip{$name} = $ip;
9488: } else {
9489: $ip = $name_to_ip{$name};
1.653 albertel 9490: }
1.888 albertel 9491: foreach my $id (@{ $name_to_host{$name} }) {
9492: $lonid_to_ip{$id} = $ip;
9493: }
9494: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 9495: }
1.869 albertel 9496: &Apache::lonnet::do_cache_new('iphost','iphost',
9497: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 9498: 48*60*60);
1.869 albertel 9499:
1.847 albertel 9500: return %iphost;
1.598 albertel 9501: }
9502:
1.992 raeburn 9503: #
9504: # Given a DNS returns the loncapa host name for that DNS
9505: #
9506: sub host_from_dns {
9507: my ($dns) = @_;
9508: my @hosts;
9509: my $ip;
9510:
1.993 raeburn 9511: if (exists($name_to_ip{$dns})) {
1.992 raeburn 9512: $ip = $name_to_ip{$dns};
9513: }
9514: if (!$ip) {
9515: $ip = gethostbyname($dns); # Initial translation to IP is in net order.
9516: if (length($ip) == 4) {
9517: $ip = &IO::Socket::inet_ntoa($ip);
9518: }
9519: }
9520: if ($ip) {
9521: @hosts = get_hosts_from_ip($ip);
9522: return $hosts[0];
9523: }
9524: return undef;
1.986 foxr 9525: }
1.992 raeburn 9526:
1.986 foxr 9527: }
9528:
1.862 albertel 9529: BEGIN {
9530:
9531: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
9532: unless ($readit) {
9533: {
9534: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
9535: %perlvar = (%perlvar,%{$configvars});
9536: }
9537:
9538:
1.1 albertel 9539: # ------------------------------------------------------ Read spare server file
9540: {
1.448 albertel 9541: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 9542:
9543: while (my $configline=<$config>) {
9544: chomp($configline);
1.284 matthew 9545: if ($configline) {
1.784 albertel 9546: my ($host,$type) = split(':',$configline,2);
1.785 albertel 9547: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 9548: push(@{ $spareid{$type} }, $host);
1.1 albertel 9549: }
9550: }
1.448 albertel 9551: close($config);
1.1 albertel 9552: }
1.11 www 9553: # ------------------------------------------------------------ Read permissions
9554: {
1.448 albertel 9555: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 9556:
9557: while (my $configline=<$config>) {
1.448 albertel 9558: chomp($configline);
9559: if ($configline) {
9560: my ($role,$perm)=split(/ /,$configline);
9561: if ($perm ne '') { $pr{$role}=$perm; }
9562: }
1.11 www 9563: }
1.448 albertel 9564: close($config);
1.11 www 9565: }
9566:
9567: # -------------------------------------------- Read plain texts for permissions
9568: {
1.448 albertel 9569: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 9570:
9571: while (my $configline=<$config>) {
1.448 albertel 9572: chomp($configline);
9573: if ($configline) {
1.742 raeburn 9574: my ($short,@plain)=split(/:/,$configline);
9575: %{$prp{$short}} = ();
9576: if (@plain > 0) {
9577: $prp{$short}{'std'} = $plain[0];
9578: for (my $i=1; $i<@plain; $i++) {
9579: $prp{$short}{'alt'.$i} = $plain[$i];
9580: }
9581: }
1.448 albertel 9582: }
1.135 www 9583: }
1.448 albertel 9584: close($config);
1.135 www 9585: }
9586:
9587: # ---------------------------------------------------------- Read package table
9588: {
1.448 albertel 9589: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 9590:
9591: while (my $configline=<$config>) {
1.483 albertel 9592: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 9593: chomp($configline);
9594: my ($short,$plain)=split(/:/,$configline);
9595: my ($pack,$name)=split(/\&/,$short);
9596: if ($plain ne '') {
9597: $packagetab{$pack.'&'.$name.'&name'}=$name;
9598: $packagetab{$short}=$plain;
9599: }
1.11 www 9600: }
1.448 albertel 9601: close($config);
1.329 matthew 9602: }
9603:
9604: # ------------- set up temporary directory
9605: {
9606: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
9607:
1.11 www 9608: }
9609:
1.794 albertel 9610: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
9611: 'compress_threshold'=> 20_000,
9612: });
1.185 www 9613:
1.281 www 9614: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 9615: $dumpcount=0;
1.958 www 9616: $locknum=0;
1.22 www 9617:
1.163 harris41 9618: &logtouch();
1.672 albertel 9619: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 9620: $readit=1;
1.564 albertel 9621: {
9622: use integer;
9623: my $test=(2**32)+1;
1.568 albertel 9624: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 9625: &logthis(" Detected 64bit platform ($_64bit)");
9626: }
1.195 www 9627: }
1.1 albertel 9628: }
1.179 www 9629:
1.1 albertel 9630: 1;
1.191 harris41 9631: __END__
9632:
1.243 albertel 9633: =pod
9634:
1.191 harris41 9635: =head1 NAME
9636:
1.243 albertel 9637: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 9638:
9639: =head1 SYNOPSIS
9640:
1.243 albertel 9641: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 9642:
9643: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
9644:
1.243 albertel 9645: Common parameters:
9646:
9647: =over 4
9648:
9649: =item *
9650:
9651: $uname : an internal username (if $cname expecting a course Id specifically)
9652:
9653: =item *
9654:
9655: $udom : a domain (if $cdom expecting a course's domain specifically)
9656:
9657: =item *
9658:
9659: $symb : a resource instance identifier
9660:
9661: =item *
9662:
9663: $namespace : the name of a .db file that contains the data needed or
9664: being set.
9665:
9666: =back
9667:
1.394 bowersj2 9668: =head1 OVERVIEW
1.191 harris41 9669:
1.394 bowersj2 9670: lonnet provides subroutines which interact with the
9671: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
9672: about classes, users, and resources.
1.243 albertel 9673:
9674: For many of these objects you can also use this to store data about
9675: them or modify them in various ways.
1.191 harris41 9676:
1.394 bowersj2 9677: =head2 Symbs
1.191 harris41 9678:
1.394 bowersj2 9679: To identify a specific instance of a resource, LON-CAPA uses symbols
9680: or "symbs"X<symb>. These identifiers are built from the URL of the
9681: map, the resource number of the resource in the map, and the URL of
9682: the resource itself. The latter is somewhat redundant, but might help
9683: if maps change.
9684:
9685: An example is
9686:
9687: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
9688:
9689: The respective map entry is
9690:
9691: <resource id="19" src="/res/msu/korte/tests/part12.problem"
9692: title="Problem 2">
9693: </resource>
9694:
9695: Symbs are used by the random number generator, as well as to store and
9696: restore data specific to a certain instance of for example a problem.
9697:
9698: =head2 Storing And Retrieving Data
9699:
9700: X<store()>X<cstore()>X<restore()>Three of the most important functions
9701: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
9702: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
9703: is is the non-critical message twin of cstore. These functions are for
9704: handlers to store a perl hash to a user's permanent data space in an
9705: easy manner, and to retrieve it again on another call. It is expected
9706: that a handler would use this once at the beginning to retrieve data,
9707: and then again once at the end to send only the new data back.
9708:
9709: The data is stored in the user's data directory on the user's
9710: homeserver under the ID of the course.
9711:
9712: The hash that is returned by restore will have all of the previous
9713: value for all of the elements of the hash.
9714:
9715: Example:
9716:
9717: #creating a hash
9718: my %hash;
9719: $hash{'foo'}='bar';
9720:
9721: #storing it
9722: &Apache::lonnet::cstore(\%hash);
9723:
9724: #changing a value
9725: $hash{'foo'}='notbar';
9726:
9727: #adding a new value
9728: $hash{'bar'}='foo';
9729: &Apache::lonnet::cstore(\%hash);
9730:
9731: #retrieving the hash
9732: my %history=&Apache::lonnet::restore();
9733:
9734: #print the hash
9735: foreach my $key (sort(keys(%history))) {
9736: print("\%history{$key} = $history{$key}");
9737: }
9738:
9739: Will print out:
1.191 harris41 9740:
1.394 bowersj2 9741: %history{1:foo} = bar
9742: %history{1:keys} = foo:timestamp
9743: %history{1:timestamp} = 990455579
9744: %history{2:bar} = foo
9745: %history{2:foo} = notbar
9746: %history{2:keys} = foo:bar:timestamp
9747: %history{2:timestamp} = 990455580
9748: %history{bar} = foo
9749: %history{foo} = notbar
9750: %history{timestamp} = 990455580
9751: %history{version} = 2
9752:
9753: Note that the special hash entries C<keys>, C<version> and
9754: C<timestamp> were added to the hash. C<version> will be equal to the
9755: total number of versions of the data that have been stored. The
9756: C<timestamp> attribute will be the UNIX time the hash was
9757: stored. C<keys> is available in every historical section to list which
9758: keys were added or changed at a specific historical revision of a
9759: hash.
9760:
9761: B<Warning>: do not store the hash that restore returns directly. This
9762: will cause a mess since it will restore the historical keys as if the
9763: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 9764:
1.394 bowersj2 9765: Calling convention:
1.191 harris41 9766:
1.394 bowersj2 9767: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
9768: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 9769:
1.394 bowersj2 9770: For more detailed information, see lonnet specific documentation.
1.191 harris41 9771:
1.394 bowersj2 9772: =head1 RETURN MESSAGES
1.191 harris41 9773:
1.394 bowersj2 9774: =over 4
1.191 harris41 9775:
1.394 bowersj2 9776: =item * B<con_lost>: unable to contact remote host
1.191 harris41 9777:
1.394 bowersj2 9778: =item * B<con_delayed>: unable to contact remote host, message will be delivered
9779: when the connection is brought back up
1.191 harris41 9780:
1.394 bowersj2 9781: =item * B<con_failed>: unable to contact remote host and unable to save message
9782: for later delivery
1.191 harris41 9783:
1.967 bisitz 9784: =item * B<error:>: an error a occurred, a description of the error follows the :
1.191 harris41 9785:
1.394 bowersj2 9786: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 9787: that was requested
1.191 harris41 9788:
1.243 albertel 9789: =back
1.191 harris41 9790:
1.243 albertel 9791: =head1 PUBLIC SUBROUTINES
1.191 harris41 9792:
1.243 albertel 9793: =head2 Session Environment Functions
1.191 harris41 9794:
1.243 albertel 9795: =over 4
1.191 harris41 9796:
1.394 bowersj2 9797: =item *
9798: X<appenv()>
1.949 raeburn 9799: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 9800: the user envirnoment file, and will be restored for each access this
1.620 albertel 9801: user makes during this session, also modifies the %env for the current
1.949 raeburn 9802: process. Optional rolesarrayref - if defined contains a reference to an array
9803: of roles which are exempt from the restriction on modifying user.role entries
9804: in the user's environment.db and in %env.
1.191 harris41 9805:
9806: =item *
1.394 bowersj2 9807: X<delenv()>
1.987 raeburn 9808: B<delenv($delthis,$regexp)>: removes all items from the session
9809: environment file that begin with $delthis. If the
9810: optional second arg - $regexp - is true, $delthis is treated as a
9811: regular expression, otherwise \Q$delthis\E is used.
9812: The values are also deleted from the current processes %env.
1.191 harris41 9813:
1.795 albertel 9814: =item * get_env_multiple($name)
9815:
9816: gets $name from the %env hash, it seemlessly handles the cases where multiple
9817: values may be defined and end up as an array ref.
9818:
9819: returns an array of values
9820:
1.243 albertel 9821: =back
9822:
9823: =head2 User Information
1.191 harris41 9824:
1.243 albertel 9825: =over 4
1.191 harris41 9826:
9827: =item *
1.394 bowersj2 9828: X<queryauthenticate()>
9829: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 9830: authentication scheme
9831:
9832: =item *
1.394 bowersj2 9833: X<authenticate()>
9834: B<authenticate($uname,$upass,$udom)>: try to
9835: authenticate user from domain's lib servers (first use the current
9836: one). C<$upass> should be the users password.
1.191 harris41 9837:
9838: =item *
1.394 bowersj2 9839: X<homeserver()>
9840: B<homeserver($uname,$udom)>: find the server which has
9841: the user's directory and files (there must be only one), this caches
9842: the answer, and also caches if there is a borken connection.
1.191 harris41 9843:
9844: =item *
1.394 bowersj2 9845: X<idget()>
9846: B<idget($udom,@ids)>: find the usernames behind a list of IDs
9847: (IDs are a unique resource in a domain, there must be only 1 ID per
9848: username, and only 1 username per ID in a specific domain) (returns
9849: hash: id=>name,id=>name)
1.191 harris41 9850:
9851: =item *
1.394 bowersj2 9852: X<idrget()>
9853: B<idrget($udom,@unames)>: find the IDs behind a list of
9854: usernames (returns hash: name=>id,name=>id)
1.191 harris41 9855:
9856: =item *
1.394 bowersj2 9857: X<idput()>
9858: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 9859:
9860: =item *
1.394 bowersj2 9861: X<rolesinit()>
9862: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 9863:
9864: =item *
1.551 albertel 9865: X<getsection()>
9866: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 9867: course $cname, return section name/number or '' for "not in course"
9868: and '-1' for "no section"
9869:
9870: =item *
1.394 bowersj2 9871: X<userenvironment()>
9872: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 9873: passed in @what from the requested user's environment, returns a hash
9874:
1.858 raeburn 9875: =item *
9876: X<userlog_query()>
1.859 albertel 9877: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
9878: activity.log file. %filters defines filters applied when parsing the
9879: log file. These can be start or end timestamps, or the type of action
9880: - log to look for Login or Logout events, check for Checkin or
9881: Checkout, role for role selection. The response is in the form
9882: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
9883: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 9884:
1.243 albertel 9885: =back
9886:
9887: =head2 User Roles
9888:
9889: =over 4
9890:
9891: =item *
9892:
1.810 raeburn 9893: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 9894: F: full access
9895: U,I,K: authentication modes (cxx only)
9896: '': forbidden
9897: 1: user needs to choose course
9898: 2: browse allowed
1.766 albertel 9899: A: passphrase authentication needed
1.243 albertel 9900:
9901: =item *
9902:
9903: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
9904: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
9905: and course level
9906:
9907: =item *
9908:
1.988 raeburn 9909: plaintext($short,$type,$cid,$forcedefault) : return value in %prp hash
9910: (rolesplain.tab); plain text explanation of a user role term.
1.1008 raeburn 9911: $type is Course (default) or Community.
1.988 raeburn 9912: If $forcedefault evaluates to true, text returned will be default
9913: text for $type. Otherwise, if this is a course, the text returned
9914: will be a custom name for the role (if defined in the course's
9915: environment). If no custom name is defined the default is returned.
9916:
1.832 raeburn 9917: =item *
9918:
1.935 raeburn 9919: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 9920: All arguments are optional. Returns a hash of a roles, either for
9921: co-author/assistant author roles for a user's Construction Space
1.906 albertel 9922: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 9923: In the hash, keys are set to colon-separated $uname,$udom,$role, and
9924: (optionally) if $withsec is true, a fourth colon-separated item - $section.
9925: For each key, value is set to colon-separated start and end times for
9926: the role. If no username and domain are specified, will default to
1.934 raeburn 9927: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 9928: of role statuses (active, future or previous), roles
9929: (e.g., cc,in, st etc.) and domains of the roles which can be used
9930: to restrict the list of roles reported. If no array ref is
9931: provided for types, will default to return only active roles.
1.834 albertel 9932:
1.243 albertel 9933: =back
9934:
9935: =head2 User Modification
9936:
9937: =over 4
9938:
9939: =item *
9940:
1.957 raeburn 9941: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 9942: user for the level given by URL. Optional start and end dates (leave empty
9943: string or zero for "no date")
1.191 harris41 9944:
9945: =item *
9946:
1.243 albertel 9947: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
9948: change a users, password, possible return values are: ok,
9949: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
9950: refused
1.191 harris41 9951:
9952: =item *
9953:
1.243 albertel 9954: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 9955:
9956: =item *
9957:
1.963 raeburn 9958: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,
9959: $forceid,$desiredhome,$email,$inststatus) :
1.243 albertel 9960: modify user
1.191 harris41 9961:
9962: =item *
9963:
1.286 matthew 9964: modifystudent
9965:
1.957 raeburn 9966: modify a student's enrollment and identification information.
1.286 matthew 9967: The course id is resolved based on the current users environment.
9968: This means the envoking user must be a course coordinator or otherwise
9969: associated with a course.
9970:
1.297 matthew 9971: This call is essentially a wrapper for lonnet::modifyuser and
9972: lonnet::modify_student_enrollment
1.286 matthew 9973:
9974: Inputs:
9975:
9976: =over 4
9977:
1.957 raeburn 9978: =item B<$udom> Student's loncapa domain
1.286 matthew 9979:
1.957 raeburn 9980: =item B<$uname> Student's loncapa login name
1.286 matthew 9981:
1.964 bisitz 9982: =item B<$uid> Student/Employee ID
1.286 matthew 9983:
1.957 raeburn 9984: =item B<$umode> Student's authentication mode
1.286 matthew 9985:
1.957 raeburn 9986: =item B<$upass> Student's password
1.286 matthew 9987:
1.957 raeburn 9988: =item B<$first> Student's first name
1.286 matthew 9989:
1.957 raeburn 9990: =item B<$middle> Student's middle name
1.286 matthew 9991:
1.957 raeburn 9992: =item B<$last> Student's last name
1.286 matthew 9993:
1.957 raeburn 9994: =item B<$gene> Student's generation
1.286 matthew 9995:
1.957 raeburn 9996: =item B<$usec> Student's section in course
1.286 matthew 9997:
9998: =item B<$end> Unix time of the roles expiration
9999:
10000: =item B<$start> Unix time of the roles start date
10001:
10002: =item B<$forceid> If defined, allow $uid to be changed
10003:
10004: =item B<$desiredhome> server to use as home server for student
10005:
1.957 raeburn 10006: =item B<$email> Student's permanent e-mail address
10007:
10008: =item B<$type> Type of enrollment (auto or manual)
10009:
1.963 raeburn 10010: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
10011:
10012: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 10013:
1.963 raeburn 10014: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 10015:
1.963 raeburn 10016: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 10017:
1.963 raeburn 10018: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 10019:
1.286 matthew 10020: =back
1.297 matthew 10021:
10022: =item *
10023:
10024: modify_student_enrollment
10025:
10026: Change a students enrollment status in a class. The environment variable
10027: 'role.request.course' must be defined for this function to proceed.
10028:
10029: Inputs:
10030:
10031: =over 4
10032:
10033: =item $udom, students domain
10034:
10035: =item $uname, students name
10036:
10037: =item $uid, students user id
10038:
10039: =item $first, students first name
10040:
10041: =item $middle
10042:
10043: =item $last
10044:
10045: =item $gene
10046:
10047: =item $usec
10048:
10049: =item $end
10050:
10051: =item $start
10052:
1.957 raeburn 10053: =item $type
10054:
10055: =item $locktype
10056:
10057: =item $cid
10058:
10059: =item $selfenroll
10060:
10061: =item $context
10062:
1.297 matthew 10063: =back
10064:
1.191 harris41 10065:
10066: =item *
10067:
1.243 albertel 10068: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
10069: custom role; give a custom role to a user for the level given by URL. Specify
10070: name and domain of role author, and role name
1.191 harris41 10071:
10072: =item *
10073:
1.243 albertel 10074: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 10075:
10076: =item *
10077:
1.243 albertel 10078: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
10079:
10080: =back
10081:
10082: =head2 Course Infomation
10083:
10084: =over 4
1.191 harris41 10085:
10086: =item *
10087:
1.631 albertel 10088: coursedescription($courseid) : returns a hash of information about the
10089: specified course id, including all environment settings for the
10090: course, the description of the course will be in the hash under the
10091: key 'description'
1.191 harris41 10092:
10093: =item *
10094:
1.624 albertel 10095: resdata($name,$domain,$type,@which) : request for current parameter
10096: setting for a specific $type, where $type is either 'course' or 'user',
10097: @what should be a list of parameters to ask about. This routine caches
10098: answers for 5 minutes.
1.243 albertel 10099:
1.877 foxr 10100: =item *
10101:
10102: get_courseresdata($courseid, $domain) : dump the entire course resource
10103: data base, returning a hash that is keyed by the resource name and has
10104: values that are the resource value. I believe that the timestamps and
10105: versions are also returned.
10106:
10107:
1.243 albertel 10108: =back
10109:
10110: =head2 Course Modification
10111:
10112: =over 4
1.191 harris41 10113:
10114: =item *
10115:
1.243 albertel 10116: writecoursepref($courseid,%prefs) : write preferences (environment
10117: database) for a course
1.191 harris41 10118:
10119: =item *
10120:
1.1011 raeburn 10121: createcourse($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner,$crstype,$cnum) : make course
10122:
10123: =item *
10124:
10125: generate_coursenum($udom) : get a unique (unused) course number in domain $udom
1.243 albertel 10126:
10127: =back
10128:
10129: =head2 Resource Subroutines
10130:
10131: =over 4
1.191 harris41 10132:
10133: =item *
10134:
1.243 albertel 10135: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 10136:
10137: =item *
10138:
1.243 albertel 10139: repcopy($filename) : subscribes to the requested file, and attempts to
10140: replicate from the owning library server, Might return
1.607 raeburn 10141: 'unavailable', 'not_found', 'forbidden', 'ok', or
10142: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 10143: resource. Expects the local filesystem pathname
10144: (/home/httpd/html/res/....)
10145:
10146: =back
10147:
10148: =head2 Resource Information
10149:
10150: =over 4
1.191 harris41 10151:
10152: =item *
10153:
1.243 albertel 10154: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
10155: a vairety of different possible values, $varname should be a request
10156: string, and the other parameters can be used to specify who and what
10157: one is asking about.
10158:
10159: Possible values for $varname are environment.lastname (or other item
10160: from the envirnment hash), user.name (or someother aspect about the
10161: user), resource.0.maxtries (or some other part and parameter of a
10162: resource)
1.204 albertel 10163:
10164: =item *
10165:
1.243 albertel 10166: directcondval($number) : get current value of a condition; reads from a state
10167: string
1.204 albertel 10168:
10169: =item *
10170:
1.243 albertel 10171: condval($condidx) : value of condition index based on state
1.204 albertel 10172:
10173: =item *
10174:
1.243 albertel 10175: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
10176: resource's metadata, $what should be either a specific key, or either
10177: 'keys' (to get a list of possible keys) or 'packages' to get a list of
10178: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
10179:
10180: this function automatically caches all requests
1.191 harris41 10181:
10182: =item *
10183:
1.243 albertel 10184: metadata_query($query,$custom,$customshow) : make a metadata query against the
10185: network of library servers; returns file handle of where SQL and regex results
10186: will be stored for query
1.191 harris41 10187:
10188: =item *
10189:
1.243 albertel 10190: symbread($filename) : return symbolic list entry (filename argument optional);
10191: returns the data handle
1.191 harris41 10192:
10193: =item *
10194:
1.243 albertel 10195: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 10196: a possible symb for the URL in $thisfn, and if is an encryypted
10197: resource that the user accessed using /enc/ returns a 1 on success, 0
10198: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 10199: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 10200:
1.191 harris41 10201:
10202: =item *
10203:
1.243 albertel 10204: symbclean($symb) : removes versions numbers from a symb, returns the
10205: cleaned symb
1.191 harris41 10206:
10207: =item *
10208:
1.243 albertel 10209: is_on_map($uri) : checks if the $uri is somewhere on the current
10210: course map, user must be in a course for it to work.
1.191 harris41 10211:
10212: =item *
10213:
1.243 albertel 10214: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 10215:
10216: =item *
10217:
1.243 albertel 10218: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
10219: a random seed, all arguments are optional, if they aren't sent it uses the
10220: environment to derive them. Note: if symb isn't sent and it can't get one
10221: from &symbread it will use the current time as its return value
1.191 harris41 10222:
10223: =item *
10224:
1.243 albertel 10225: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
10226: unfakeable, receipt
1.191 harris41 10227:
10228: =item *
10229:
1.620 albertel 10230: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 10231:
10232: =item *
10233:
1.243 albertel 10234: countacc($url) : count the number of accesses to a given URL
1.191 harris41 10235:
10236: =item *
10237:
1.243 albertel 10238: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 10239:
10240: =item *
10241:
1.243 albertel 10242: checkin($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 $tcrsid)
1.191 harris41 10243:
10244: =item *
10245:
1.243 albertel 10246: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 10247:
10248: =item *
10249:
1.243 albertel 10250: devalidate($symb) : devalidate temporary spreadsheet calculations,
10251: forcing spreadsheet to reevaluate the resource scores next time.
10252:
10253: =back
10254:
10255: =head2 Storing/Retreiving Data
10256:
10257: =over 4
1.191 harris41 10258:
10259: =item *
10260:
1.243 albertel 10261: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
10262: for this url; hashref needs to be given and should be a \%hashname; the
10263: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 10264: be derived from the env
1.191 harris41 10265:
10266: =item *
10267:
1.243 albertel 10268: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
10269: uses critical subroutine
1.191 harris41 10270:
10271: =item *
10272:
1.243 albertel 10273: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
10274: all args are optional
1.191 harris41 10275:
10276: =item *
10277:
1.717 albertel 10278: dumpstore($namespace,$udom,$uname,$regexp,$range) :
10279: dumps the complete (or key matching regexp) namespace into a hash
10280: ($udom, $uname, $regexp, $range are optional) for a namespace that is
10281: normally &store()ed into
10282:
10283: $range should be either an integer '100' (give me the first 100
10284: matching records)
10285: or be two integers sperated by a - with no spaces
10286: '30-50' (give me the 30th through the 50th matching
10287: records)
10288:
10289:
10290: =item *
10291:
10292: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
10293: replaces a &store() version of data with a replacement set of data
10294: for a particular resource in a namespace passed in the $storehash hash
10295: reference
10296:
10297: =item *
10298:
1.243 albertel 10299: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
10300: works very similar to store/cstore, but all data is stored in a
10301: temporary location and can be reset using tmpreset, $storehash should
10302: be a hash reference, returns nothing on success
1.191 harris41 10303:
10304: =item *
10305:
1.243 albertel 10306: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
10307: similar to restore, but all data is stored in a temporary location and
10308: can be reset using tmpreset. Returns a hash of values on success,
10309: error string otherwise.
1.191 harris41 10310:
10311: =item *
10312:
1.243 albertel 10313: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
10314: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 10315:
10316: =item *
10317:
1.243 albertel 10318: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10319: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 10320:
10321: =item *
10322:
1.243 albertel 10323: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
10324: namesp ($udom and $uname are optional)
1.191 harris41 10325:
10326: =item *
10327:
1.702 albertel 10328: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 10329: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 10330: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 10331:
1.702 albertel 10332: $range should be either an integer '100' (give me the first 100
10333: matching records)
10334: or be two integers sperated by a - with no spaces
10335: '30-50' (give me the 30th through the 50th matching
10336: records)
1.449 matthew 10337: =item *
10338:
10339: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
10340: $store can be a scalar, an array reference, or if the amount to be
10341: incremented is > 1, a hash reference.
10342:
10343: ($udom and $uname are optional)
1.191 harris41 10344:
10345: =item *
10346:
1.243 albertel 10347: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
10348: ($udom and $uname are optional)
1.191 harris41 10349:
10350: =item *
10351:
1.243 albertel 10352: cput($namespace,$storehash,$udom,$uname) : critical put
10353: ($udom and $uname are optional)
1.191 harris41 10354:
10355: =item *
10356:
1.748 albertel 10357: newput($namespace,$storehash,$udom,$uname) :
10358:
10359: Attempts to store the items in the $storehash, but only if they don't
10360: currently exist, if this succeeds you can be certain that you have
10361: successfully created a new key value pair in the $namespace db.
10362:
10363:
10364: Args:
10365: $namespace: name of database to store values to
10366: $storehash: hashref to store to the db
10367: $udom: (optional) domain of user containing the db
10368: $uname: (optional) name of user caontaining the db
10369:
10370: Returns:
10371: 'ok' -> succeeded in storing all keys of $storehash
10372: 'key_exists: <key>' -> failed to anything out of $storehash, as at
10373: least <key> already existed in the db (other
10374: requested keys may also already exist)
1.967 bisitz 10375: 'error: <msg>' -> unable to tie the DB or other error occurred
1.748 albertel 10376: 'con_lost' -> unable to contact request server
10377: 'refused' -> action was not allowed by remote machine
10378:
10379:
10380: =item *
10381:
1.243 albertel 10382: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
10383: reference filled in from namesp (encrypts the return communication)
10384: ($udom and $uname are optional)
1.191 harris41 10385:
10386: =item *
10387:
1.243 albertel 10388: log($udom,$name,$home,$message) : write to permanent log for user; use
10389: critical subroutine
10390:
1.806 raeburn 10391: =item *
10392:
1.860 raeburn 10393: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
10394: array reference filled in from namespace found in domain level on either
10395: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 10396:
10397: =item *
10398:
1.860 raeburn 10399: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
10400: domain level either on specified domain server ($uhome) or primary domain
10401: server ($udom and $uhome are optional)
1.806 raeburn 10402:
1.943 raeburn 10403: =item *
10404:
10405: get_domain_defaults($target_domain) : returns hash with defaults for
10406: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
10407: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
10408: or localauth), initial password or a kerberos realm, language (e.g., en-us).
10409: Values are retrieved from cache (if current), or from domain's configuration.db
10410: (if available), or lastly from values in lonTabs/dns_domain,tab,
10411: or lonTabs/domain.tab.
10412:
10413: %domdefaults = &get_auth_defaults($target_domain);
10414:
1.243 albertel 10415: =back
10416:
10417: =head2 Network Status Functions
10418:
10419: =over 4
1.191 harris41 10420:
10421: =item *
10422:
10423: dirlist($uri) : return directory list based on URI
10424:
10425: =item *
10426:
1.243 albertel 10427: spareserver() : find server with least workload from spare.tab
10428:
1.986 foxr 10429:
10430: =item *
10431:
10432: host_from_dns($dns) : Returns the loncapa hostname corresponding to a DNS name or undef
10433: if there is no corresponding loncapa host.
10434:
1.243 albertel 10435: =back
10436:
1.986 foxr 10437:
1.243 albertel 10438: =head2 Apache Request
10439:
10440: =over 4
1.191 harris41 10441:
10442: =item *
10443:
1.243 albertel 10444: ssi($url,%hash) : server side include, does a complete request cycle on url to
10445: localhost, posts hash
10446:
10447: =back
10448:
10449: =head2 Data to String to Data
10450:
10451: =over 4
1.191 harris41 10452:
10453: =item *
10454:
1.243 albertel 10455: hash2str(%hash) : convert a hash into a string complete with escaping and '='
10456: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 10457:
10458: =item *
10459:
1.243 albertel 10460: hashref2str($hashref) : convert a hashref into a string complete with
10461: escaping and '=' and '&' separators, supports elements that are
10462: arrayrefs and hashrefs
1.191 harris41 10463:
10464: =item *
10465:
1.243 albertel 10466: arrayref2str($arrayref) : convert an arrayref into a string complete
10467: with escaping and '&' separators, supports elements that are arrayrefs
10468: and hashrefs
1.191 harris41 10469:
10470: =item *
10471:
1.243 albertel 10472: str2hash($string) : convert string to hash using unescaping and
10473: splitting on '=' and '&', supports elements that are arrayrefs and
10474: hashrefs
1.191 harris41 10475:
10476: =item *
10477:
1.243 albertel 10478: str2array($string) : convert string to hash using unescaping and
10479: splitting on '&', supports elements that are arrayrefs and hashrefs
10480:
10481: =back
10482:
10483: =head2 Logging Routines
10484:
10485: =over 4
10486:
10487: These routines allow one to make log messages in the lonnet.log and
10488: lonnet.perm logfiles.
1.191 harris41 10489:
10490: =item *
10491:
1.243 albertel 10492: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 10493:
10494: =item *
10495:
1.243 albertel 10496: logthis() : append message to the normal lonnet.log file, it gets
10497: preiodically rolled over and deleted.
1.191 harris41 10498:
10499: =item *
10500:
1.243 albertel 10501: logperm() : append a permanent message to lonnet.perm.log, this log
10502: file never gets deleted by any automated portion of the system, only
10503: messages of critical importance should go in here.
10504:
10505: =back
10506:
10507: =head2 General File Helper Routines
10508:
10509: =over 4
1.191 harris41 10510:
10511: =item *
10512:
1.481 raeburn 10513: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
10514: (a) files in /uploaded
10515: (i) If a local copy of the file exists -
10516: compares modification date of local copy with last-modified date for
10517: definitive version stored on home server for course. If local copy is
10518: stale, requests a new version from the home server and stores it.
10519: If the original has been removed from the home server, then local copy
10520: is unlinked.
10521: (ii) If local copy does not exist -
10522: requests the file from the home server and stores it.
10523:
10524: If $caller is 'uploadrep':
10525: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
10526: for request for files originally uploaded via DOCS.
10527: - returns 'ok' if fresh local copy now available, -1 otherwise.
10528:
10529: Otherwise:
10530: This indicates a call from the content generation phase of the request.
10531: - returns the entire contents of the file or -1.
10532:
10533: (b) files in /res
10534: - returns the entire contents of a file or -1;
10535: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 10536:
1.712 albertel 10537:
10538: =item *
10539:
10540: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
10541: reference
10542:
10543: returns either a stat() list of data about the file or an empty list
10544: if the file doesn't exist or couldn't find out about it (connection
10545: problems or user unknown)
10546:
1.191 harris41 10547: =item *
10548:
1.243 albertel 10549: filelocation($dir,$file) : returns file system location of a file
10550: based on URI; meant to be "fairly clean" absolute reference, $dir is a
10551: directory that relative $file lookups are to looked in ($dir of /a/dir
10552: and a file of ../bob will become /a/bob)
1.191 harris41 10553:
10554: =item *
10555:
10556: hreflocation($dir,$file) : returns file system location or a URL; same as
10557: filelocation except for hrefs
10558:
10559: =item *
10560:
10561: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
10562:
1.243 albertel 10563: =back
10564:
1.608 albertel 10565: =head2 Usererfile file routines (/uploaded*)
10566:
10567: =over 4
10568:
10569: =item *
10570:
10571: userfileupload(): main rotine for putting a file in a user or course's
10572: filespace, arguments are,
10573:
1.620 albertel 10574: formname - required - this is the name of the element in $env where the
1.608 albertel 10575: filename, and the contents of the file to create/modifed exist
1.620 albertel 10576: the filename is in $env{'form.'.$formname.'.filename'} and the
10577: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 10578: coursedoc - if true, store the file in the course of the active role
10579: of the current user
10580: subdir - required - subdirectory to put the file in under ../userfiles/
10581: if undefined, it will be placed in "unknown"
10582:
10583: (This routine calls clean_filename() to remove any dangerous
10584: characters from the filename, and then calls finuserfileupload() to
10585: complete the transaction)
10586:
10587: returns either the url of the uploaded file (/uploaded/....) if successful
10588: and /adm/notfound.html if unsuccessful
10589:
10590: =item *
10591:
10592: clean_filename(): routine for cleaing a filename up for storage in
10593: userfile space, argument is:
10594:
10595: filename - proposed filename
10596:
10597: returns: the new clean filename
10598:
10599: =item *
10600:
10601: finishuserfileupload(): routine that creaes and sends the file to
10602: userspace, probably shouldn't be called directly
10603:
10604: docuname: username or courseid of destination for the file
10605: docudom: domain of user/course of destination for the file
10606: formname: same as for userfileupload()
10607: fname: filename (inculding subdirectories) for the file
10608:
10609: returns either the url of the uploaded file (/uploaded/....) if successful
10610: and /adm/notfound.html if unsuccessful
10611:
10612: =item *
10613:
10614: renameuserfile(): renames an existing userfile to a new name
10615:
10616: Args:
10617: docuname: username or courseid of destination for the file
10618: docudom: domain of user/course of destination for the file
10619: old: current file name (including any subdirs under userfiles)
10620: new: desired file name (including any subdirs under userfiles)
10621:
10622: =item *
10623:
10624: mkdiruserfile(): creates a directory is a userfiles dir
10625:
10626: Args:
10627: docuname: username or courseid of destination for the file
10628: docudom: domain of user/course of destination for the file
10629: dir: dir to create (including any subdirs under userfiles)
10630:
10631: =item *
10632:
10633: removeuserfile(): removes a file that exists in userfiles
10634:
10635: Args:
10636: docuname: username or courseid of destination for the file
10637: docudom: domain of user/course of destination for the file
10638: fname: filname to delete (including any subdirs under userfiles)
10639:
10640: =item *
10641:
10642: removeuploadedurl(): convience function for removeuserfile()
10643:
10644: Args:
10645: url: a full /uploaded/... url to delete
10646:
1.747 albertel 10647: =item *
10648:
10649: get_portfile_permissions():
10650: Args:
10651: domain: domain of user or course contain the portfolio files
10652: user: name of user or num of course contain the portfolio files
10653: Returns:
10654: hashref of a dump of the proper file_permissions.db
10655:
10656:
10657: =item *
10658:
10659: get_access_controls():
10660:
10661: Args:
10662: current_permissions: the hash ref returned from get_portfile_permissions()
10663: group: (optional) the group you want the files associated with
10664: file: (optional) the file you want access info on
10665:
10666: Returns:
1.749 raeburn 10667: a hash (keys are file names) of hashes containing
10668: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
10669: values are XML containing access control settings (see below)
1.747 albertel 10670:
10671: Internal notes:
10672:
1.749 raeburn 10673: access controls are stored in file_permissions.db as key=value pairs.
10674: key -> path to file/file_name\0uniqueID:scope_end_start
10675: where scope -> public,guest,course,group,domains or users.
10676: end -> UNIX time for end of access (0 -> no end date)
10677: start -> UNIX time for start of access
10678:
10679: value -> XML description of access control
10680: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
10681: <start></start>
10682: <end></end>
10683:
10684: <password></password> for scope type = guest
10685:
10686: <domain></domain> for scope type = course or group
10687: <number></number>
10688: <roles id="">
10689: <role></role>
10690: <access></access>
10691: <section></section>
10692: <group></group>
10693: </roles>
10694:
10695: <dom></dom> for scope type = domains
10696:
10697: <users> for scope type = users
10698: <user>
10699: <uname></uname>
10700: <udom></udom>
10701: </user>
10702: </users>
10703: </scope>
10704:
10705: Access data is also aggregated for each file in an additional key=value pair:
10706: key -> path to file/file_name\0accesscontrol
10707: value -> reference to hash
10708: hash contains key = value pairs
10709: where key = uniqueID:scope_end_start
10710: value = UNIX time record was last updated
10711:
10712: Used to improve speed of look-ups of access controls for each file.
10713:
10714: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
10715:
10716: modify_access_controls():
10717:
10718: Modifies access controls for a portfolio file
10719: Args
10720: 1. file name
10721: 2. reference to hash of required changes,
10722: 3. domain
10723: 4. username
10724: where domain,username are the domain of the portfolio owner
10725: (either a user or a course)
10726:
10727: Returns:
10728: 1. result of additions or updates ('ok' or 'error', with error message).
10729: 2. result of deletions ('ok' or 'error', with error message).
10730: 3. reference to hash of any new or updated access controls.
10731: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
10732: key = integer (inbound ID)
10733: value = uniqueID
1.747 albertel 10734:
1.608 albertel 10735: =back
10736:
1.243 albertel 10737: =head2 HTTP Helper Routines
10738:
10739: =over 4
10740:
1.191 harris41 10741: =item *
10742:
10743: escape() : unpack non-word characters into CGI-compatible hex codes
10744:
10745: =item *
10746:
10747: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
10748:
1.243 albertel 10749: =back
10750:
10751: =head1 PRIVATE SUBROUTINES
10752:
10753: =head2 Underlying communication routines (Shouldn't call)
10754:
10755: =over 4
10756:
10757: =item *
10758:
10759: subreply() : tries to pass a message to lonc, returns con_lost if incapable
10760:
10761: =item *
10762:
10763: reply() : uses subreply to send a message to remote machine, logs all failures
10764:
10765: =item *
10766:
10767: critical() : passes a critical message to another server; if cannot
10768: get through then place message in connection buffer directory and
10769: returns con_delayed, if incapable of saving message, returns
10770: con_failed
10771:
10772: =item *
10773:
10774: reconlonc() : tries to reconnect lonc client processes.
10775:
10776: =back
10777:
10778: =head2 Resource Access Logging
10779:
10780: =over 4
10781:
10782: =item *
10783:
10784: flushcourselogs() : flush (save) buffer logs and access logs
10785:
10786: =item *
10787:
10788: courselog($what) : save message for course in hash
10789:
10790: =item *
10791:
10792: courseacclog($what) : save message for course using &courselog(). Perform
10793: special processing for specific resource types (problems, exams, quizzes, etc).
10794:
1.191 harris41 10795: =item *
10796:
10797: goodbye() : flush course logs and log shutting down; it is called in srm.conf
10798: as a PerlChildExitHandler
1.243 albertel 10799:
10800: =back
10801:
10802: =head2 Other
10803:
10804: =over 4
10805:
10806: =item *
10807:
10808: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 10809:
10810: =back
10811:
10812: =cut
1.877 foxr 10813:
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