Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.966
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.966 ! raeburn 4: # $Id: lonnet.pm,v 1.965 2008/08/27 02:29:31 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:
1.1 albertel 30: package Apache::lonnet;
31:
32: use strict;
1.8 www 33: use LWP::UserAgent();
1.486 www 34: use HTTP::Date;
35: # use Date::Parse;
1.871 albertel 36: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
37: $_64bit %env);
38:
39: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
40: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
41: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
1.958 www 42: %courseownerbuf, %coursetypebuf,$locknum);
1.403 www 43:
1.1 albertel 44: use IO::Socket;
1.31 www 45: use GDBM_File;
1.208 albertel 46: use HTML::LCParser;
1.88 www 47: use Fcntl qw(:flock);
1.870 albertel 48: use Storable qw(thaw nfreeze);
1.539 albertel 49: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 50: use Cache::Memcached;
1.676 albertel 51: use Digest::MD5;
1.790 albertel 52: use Math::Random;
1.807 albertel 53: use LONCAPA qw(:DEFAULT :match);
1.740 www 54: use LONCAPA::Configuration;
1.676 albertel 55:
1.195 www 56: my $readit;
1.550 foxr 57: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 58:
1.619 albertel 59: require Exporter;
60:
61: our @ISA = qw (Exporter);
62: our @EXPORT = qw(%env);
63:
1.449 matthew 64: =pod
65:
66: =head1 Package Variables
67:
68: These are largely undocumented, so if you decipher one please note it here.
69:
70: =over 4
71:
72: =item $processmarker
73:
74: Contains the time this process was started and this servers host id.
75:
76: =item $dumpcount
77:
78: Counts the number of times a message log flush has been attempted (regardless
79: of success) by this process. Used as part of the filename when messages are
80: delayed.
81:
82: =back
83:
84: =cut
85:
86:
1.1 albertel 87: # --------------------------------------------------------------------- Logging
1.729 www 88: {
89: my $logid;
90: sub instructor_log {
1.957 raeburn 91: my ($hash_name,$storehash,$delflag,$uname,$udom,$cnum,$cdom)=@_;
92: if (($cnum eq '') || ($cdom eq '')) {
93: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
94: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
95: }
1.729 www 96: $logid++;
1.957 raeburn 97: my $now = time();
98: my $id=$now.'00000'.$$.'00000'.$logid;
1.729 www 99: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 100: { $id => {
101: 'exe_uname' => $env{'user.name'},
102: 'exe_udom' => $env{'user.domain'},
1.957 raeburn 103: 'exe_time' => $now,
1.730 www 104: 'exe_ip' => $ENV{'REMOTE_ADDR'},
105: 'delflag' => $delflag,
106: 'logentry' => $storehash,
107: 'uname' => $uname,
108: 'udom' => $udom,
109: }
1.957 raeburn 110: },$cdom,$cnum);
1.729 www 111: }
112: }
1.1 albertel 113:
1.163 harris41 114: sub logtouch {
115: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 116: unless (-e "$execdir/logs/lonnet.log") {
117: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 118: close $fh;
119: }
120: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
121: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
122: }
123:
1.1 albertel 124: sub logthis {
125: my $message=shift;
126: my $execdir=$perlvar{'lonDaemons'};
127: my $now=time;
128: my $local=localtime($now);
1.448 albertel 129: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
130: print $fh "$local ($$): $message\n";
131: close($fh);
132: }
1.1 albertel 133: return 1;
134: }
135:
136: sub logperm {
137: my $message=shift;
138: my $execdir=$perlvar{'lonDaemons'};
139: my $now=time;
140: my $local=localtime($now);
1.448 albertel 141: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
142: print $fh "$now:$message:$local\n";
143: close($fh);
144: }
1.1 albertel 145: return 1;
146: }
147:
1.850 albertel 148: sub create_connection {
1.853 albertel 149: my ($hostname,$lonid) = @_;
1.851 albertel 150: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 151: Type => SOCK_STREAM,
152: Timeout => 10);
153: return 0 if (!$client);
1.890 albertel 154: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 155: my $result = <$client>;
156: chomp($result);
157: return 1 if ($result eq 'done');
158: return 0;
159: }
160:
161:
1.1 albertel 162: # -------------------------------------------------- Non-critical communication
163: sub subreply {
164: my ($cmd,$server)=@_;
1.838 albertel 165: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 166: #
167: # With loncnew process trimming, there's a timing hole between lonc server
168: # process exit and the master server picking up the listen on the AF_UNIX
169: # socket. In that time interval, a lock file will exist:
170:
171: my $lockfile=$peerfile.".lock";
172: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
173: sleep(1);
174: }
175: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 176: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 177: #
1.550 foxr 178: # We'll give the connection a few tries before abandoning it. If
179: # connection is not possible, we'll con_lost back to the client.
180: #
181: my $client;
182: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
183: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
184: Type => SOCK_STREAM,
185: Timeout => 10);
1.869 albertel 186: if ($client) {
1.550 foxr 187: last; # Connected!
1.850 albertel 188: } else {
1.853 albertel 189: &create_connection(&hostname($server),$server);
1.550 foxr 190: }
1.850 albertel 191: sleep(1); # Try again later if failed connection.
1.550 foxr 192: }
193: my $answer;
194: if ($client) {
1.704 albertel 195: print $client "sethost:$server:$cmd\n";
1.550 foxr 196: $answer=<$client>;
197: if (!$answer) { $answer="con_lost"; }
198: chomp($answer);
199: } else {
200: $answer = 'con_lost'; # Failed connection.
201: }
1.1 albertel 202: return $answer;
203: }
204:
205: sub reply {
206: my ($cmd,$server)=@_;
1.838 albertel 207: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 208: my $answer=subreply($cmd,$server);
1.65 www 209: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 210: &logthis("<font color=\"blue\">WARNING:".
1.12 www 211: " $cmd to $server returned $answer</font>");
212: }
1.1 albertel 213: return $answer;
214: }
215:
216: # ----------------------------------------------------------- Send USR1 to lonc
217:
218: sub reconlonc {
1.891 albertel 219: my ($lonid) = @_;
220: my $hostname = &hostname($lonid);
221: if ($lonid) {
222: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
223: if ($hostname && -e $peerfile) {
224: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
225: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
226: Type => SOCK_STREAM,
227: Timeout => 10);
228: if ($client) {
229: print $client ("reset_retries\n");
230: my $answer=<$client>;
231: #reset just this one.
232: }
233: }
234: return;
235: }
236:
1.836 www 237: &logthis("Trying to reconnect lonc");
1.1 albertel 238: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 239: if (open(my $fh,"<$loncfile")) {
1.1 albertel 240: my $loncpid=<$fh>;
241: chomp($loncpid);
242: if (kill 0 => $loncpid) {
243: &logthis("lonc at pid $loncpid responding, sending USR1");
244: kill USR1 => $loncpid;
245: sleep 1;
1.836 www 246: } else {
1.12 www 247: &logthis(
1.672 albertel 248: "<font color=\"blue\">WARNING:".
1.12 www 249: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 250: }
251: } else {
1.836 www 252: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 253: }
254: }
255:
256: # ------------------------------------------------------ Critical communication
1.12 www 257:
1.1 albertel 258: sub critical {
259: my ($cmd,$server)=@_;
1.838 albertel 260: unless (&hostname($server)) {
1.672 albertel 261: &logthis("<font color=\"blue\">WARNING:".
1.89 www 262: " Critical message to unknown server ($server)</font>");
263: return 'no_such_host';
264: }
1.1 albertel 265: my $answer=reply($cmd,$server);
266: if ($answer eq 'con_lost') {
267: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 268: my $answer=reply($cmd,$server);
1.1 albertel 269: if ($answer eq 'con_lost') {
270: my $now=time;
271: my $middlename=$cmd;
1.5 www 272: $middlename=substr($middlename,0,16);
1.1 albertel 273: $middlename=~s/\W//g;
274: my $dfilename=
1.305 www 275: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
276: $dumpcount++;
1.1 albertel 277: {
1.448 albertel 278: my $dfh;
279: if (open($dfh,">$dfilename")) {
280: print $dfh "$cmd\n";
281: close($dfh);
282: }
1.1 albertel 283: }
284: sleep 2;
285: my $wcmd='';
286: {
1.448 albertel 287: my $dfh;
288: if (open($dfh,"<$dfilename")) {
289: $wcmd=<$dfh>;
290: close($dfh);
291: }
1.1 albertel 292: }
293: chomp($wcmd);
1.7 www 294: if ($wcmd eq $cmd) {
1.672 albertel 295: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 296: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 297: &logperm("D:$server:$cmd");
298: return 'con_delayed';
299: } else {
1.672 albertel 300: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 301: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 302: &logperm("F:$server:$cmd");
303: return 'con_failed';
304: }
305: }
306: }
307: return $answer;
1.405 albertel 308: }
309:
1.755 albertel 310: # ------------------------------------------- check if return value is an error
311:
312: sub error {
313: my ($result) = @_;
1.756 albertel 314: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 315: if ($2 == 2) { return undef; }
316: return $1;
317: }
318: return undef;
319: }
320:
1.783 albertel 321: sub convert_and_load_session_env {
322: my ($lonidsdir,$handle)=@_;
323: my @profile;
324: {
1.917 albertel 325: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
326: if (!$opened) {
1.915 albertel 327: return 0;
328: }
1.783 albertel 329: flock($idf,LOCK_SH);
330: @profile=<$idf>;
331: close($idf);
332: }
333: my %temp_env;
334: foreach my $line (@profile) {
1.786 albertel 335: if ($line !~ m/=/) {
336: return 0;
337: }
1.783 albertel 338: chomp($line);
339: my ($envname,$envvalue)=split(/=/,$line,2);
340: $temp_env{&unescape($envname)} = &unescape($envvalue);
341: }
342: unlink("$lonidsdir/$handle.id");
343: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
344: 0640)) {
345: %disk_env = %temp_env;
346: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
347: untie(%disk_env);
348: }
1.786 albertel 349: return 1;
1.783 albertel 350: }
351:
1.374 www 352: # ------------------------------------------- Transfer profile into environment
1.780 albertel 353: my $env_loaded;
354: sub transfer_profile_to_env {
1.788 albertel 355: my ($lonidsdir,$handle,$force_transfer) = @_;
356: if (!$force_transfer && $env_loaded) { return; }
1.374 www 357:
1.720 albertel 358: if (!defined($lonidsdir)) {
359: $lonidsdir = $perlvar{'lonIDsDir'};
360: }
361: if (!defined($handle)) {
362: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
363: }
364:
1.786 albertel 365: my $convert;
366: {
1.917 albertel 367: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
368: if (!$opened) {
1.915 albertel 369: return;
370: }
1.786 albertel 371: flock($idf,LOCK_SH);
372: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
373: &GDBM_READER(),0640)) {
374: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
375: untie(%disk_env);
376: } else {
377: $convert = 1;
378: }
379: }
380: if ($convert) {
381: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
382: &logthis("Failed to load session, or convert session.");
383: }
1.374 www 384: }
1.783 albertel 385:
1.786 albertel 386: my %remove;
1.783 albertel 387: while ( my $envname = each(%env) ) {
1.433 matthew 388: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
389: if ($time < time-300) {
1.783 albertel 390: $remove{$key}++;
1.433 matthew 391: }
392: }
393: }
1.783 albertel 394:
1.619 albertel 395: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 396: $env_loaded=1;
1.783 albertel 397: foreach my $expired_key (keys(%remove)) {
1.433 matthew 398: &delenv($expired_key);
1.374 www 399: }
1.1 albertel 400: }
401:
1.916 albertel 402: # ---------------------------------------------------- Check for valid session
403: sub check_for_valid_session {
404: my ($r) = @_;
405: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
406: my $lonid=$cookies{'lonID'};
407: return undef if (!$lonid);
408:
409: my $handle=&LONCAPA::clean_handle($lonid->value);
410: my $lonidsdir=$r->dir_config('lonIDsDir');
411: return undef if (!-e "$lonidsdir/$handle.id");
412:
1.917 albertel 413: my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
414: return undef if (!$opened);
1.916 albertel 415:
416: flock($idf,LOCK_SH);
417: my %disk_env;
418: if (!tie(%disk_env,'GDBM_File',"$lonidsdir/$handle.id",
419: &GDBM_READER(),0640)) {
420: return undef;
421: }
422:
423: if (!defined($disk_env{'user.name'})
424: || !defined($disk_env{'user.domain'})) {
425: return undef;
426: }
427: return $handle;
428: }
429:
1.830 albertel 430: sub timed_flock {
431: my ($file,$lock_type) = @_;
432: my $failed=0;
433: eval {
434: local $SIG{__DIE__}='DEFAULT';
435: local $SIG{ALRM}=sub {
436: $failed=1;
437: die("failed lock");
438: };
439: alarm(13);
440: flock($file,$lock_type);
441: alarm(0);
442: };
443: if ($failed) {
444: return undef;
445: } else {
446: return 1;
447: }
448: }
449:
1.5 www 450: # ---------------------------------------------------------- Append Environment
451:
452: sub appenv {
1.949 raeburn 453: my ($newenv,$roles) = @_;
454: if (ref($newenv) eq 'HASH') {
455: foreach my $key (keys(%{$newenv})) {
456: my $refused = 0;
457: if (($key =~ /^user\.role/) || ($key =~ /^user\.priv/)) {
458: $refused = 1;
459: if (ref($roles) eq 'ARRAY') {
460: my ($type,$role) = ($key =~ /^user\.(role|priv)\.([^.]+)\./);
461: if (grep(/^\Q$role\E$/,@{$roles})) {
462: $refused = 0;
463: }
464: }
465: }
466: if ($refused) {
467: &logthis("<font color=\"blue\">WARNING: ".
468: "Attempt to modify environment ".$key." to ".$newenv->{$key}
469: .'</font>');
470: delete($newenv->{$key});
471: } else {
472: $env{$key}=$newenv->{$key};
473: }
474: }
475: my $opened = open(my $env_file,'+<',$env{'user.environment'});
476: if ($opened
477: && &timed_flock($env_file,LOCK_EX)
478: &&
479: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
480: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
481: while (my ($key,$value) = each(%{$newenv})) {
482: $disk_env{$key} = $value;
483: }
484: untie(%disk_env);
1.35 www 485: }
1.191 harris41 486: }
1.56 www 487: return 'ok';
488: }
489: # ----------------------------------------------------- Delete from Environment
490:
491: sub delenv {
492: my $delthis=shift;
493: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 494: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 495: "Attempt to delete from environment ".$delthis);
496: return 'error';
497: }
1.917 albertel 498: my $opened = open(my $env_file,'+<',$env{'user.environment'});
499: if ($opened
1.915 albertel 500: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 501: &&
502: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
503: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 504: foreach my $key (keys(%disk_env)) {
505: if ($key=~/^$delthis/) {
1.915 albertel 506: delete($env{$key});
507: delete($disk_env{$key});
508: }
1.448 albertel 509: }
1.783 albertel 510: untie(%disk_env);
1.5 www 511: }
512: return 'ok';
1.369 albertel 513: }
514:
1.790 albertel 515: sub get_env_multiple {
516: my ($name) = @_;
517: my @values;
518: if (defined($env{$name})) {
519: # exists is it an array
520: if (ref($env{$name})) {
521: @values=@{ $env{$name} };
522: } else {
523: $values[0]=$env{$name};
524: }
525: }
526: return(@values);
527: }
528:
1.958 www 529: # ------------------------------------------------------------------- Locking
530:
531: sub set_lock {
532: my ($text)=@_;
533: $locknum++;
534: my $id=$$.'-'.$locknum;
535: &appenv({'session.locks' => $env{'session.locks'}.','.$id,
536: 'session.lock.'.$id => $text});
537: return $id;
538: }
539:
540: sub get_locks {
541: my $num=0;
542: my %texts=();
543: foreach my $lock (split(/\,/,$env{'session.locks'})) {
544: if ($lock=~/\w/) {
545: $num++;
546: $texts{$lock}=$env{'session.lock.'.$lock};
547: }
548: }
549: return ($num,%texts);
550: }
551:
552: sub remove_lock {
553: my ($id)=@_;
554: my $newlocks='';
555: foreach my $lock (split(/\,/,$env{'session.locks'})) {
556: if (($lock=~/\w/) && ($lock ne $id)) {
557: $newlocks.=','.$lock;
558: }
559: }
560: &appenv({'session.locks' => $newlocks});
561: &delenv('session.lock.'.$id);
562: }
563:
564: sub remove_all_locks {
565: my $activelocks=$env{'session.locks'};
566: foreach my $lock (split(/\,/,$env{'session.locks'})) {
567: if ($lock=~/\w/) {
568: &remove_lock($lock);
569: }
570: }
571: }
572:
573:
1.369 albertel 574: # ------------------------------------------ Find out current server userload
575: sub userload {
576: my $numusers=0;
577: {
578: opendir(LONIDS,$perlvar{'lonIDsDir'});
579: my $filename;
580: my $curtime=time;
581: while ($filename=readdir(LONIDS)) {
1.925 albertel 582: next if ($filename eq '.' || $filename eq '..');
583: next if ($filename =~ /publicuser_\d+\.id/);
1.404 albertel 584: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 585: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 586: }
587: closedir(LONIDS);
588: }
589: my $userloadpercent=0;
590: my $maxuserload=$perlvar{'lonUserLoadLim'};
591: if ($maxuserload) {
1.371 albertel 592: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 593: }
1.372 albertel 594: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 595: return $userloadpercent;
1.283 www 596: }
597:
598: # ------------------------------------------ Fight off request when overloaded
599:
600: sub overloaderror {
601: my ($r,$checkserver)=@_;
602: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
603: my $loadavg;
604: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 605: open(my $loadfile,'/proc/loadavg');
1.283 www 606: $loadavg=<$loadfile>;
607: $loadavg =~ s/\s.*//g;
1.285 matthew 608: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 609: close($loadfile);
1.283 www 610: } else {
611: $loadavg=&reply('load',$checkserver);
612: }
1.285 matthew 613: my $overload=$loadavg-100;
1.283 www 614: if ($overload>0) {
1.285 matthew 615: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 616: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 617: return 413;
1.283 www 618: }
619: return '';
1.5 www 620: }
1.1 albertel 621:
622: # ------------------------------ Find server with least workload from spare.tab
1.11 www 623:
1.1 albertel 624: sub spareserver {
1.670 albertel 625: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 626: my $spare_server;
1.370 albertel 627: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 628: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
629: : $userloadpercent;
630:
631: foreach my $try_server (@{ $spareid{'primary'} }) {
632: ($spare_server, $lowest_load) =
633: &compare_server_load($try_server, $spare_server, $lowest_load);
634: }
635:
636: my $found_server = ($spare_server ne '' && $lowest_load < 100);
637:
638: if (!$found_server) {
639: foreach my $try_server (@{ $spareid{'default'} }) {
640: ($spare_server, $lowest_load) =
641: &compare_server_load($try_server, $spare_server, $lowest_load);
642: }
643: }
644:
645: if (!$want_server_name) {
1.838 albertel 646: $spare_server="http://".&hostname($spare_server);
1.784 albertel 647: }
648: return $spare_server;
649: }
650:
651: sub compare_server_load {
652: my ($try_server, $spare_server, $lowest_load) = @_;
653:
654: my $loadans = &reply('load', $try_server);
655: my $userloadans = &reply('userload',$try_server);
656:
657: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
658: next; #didn't get a number from the server
659: }
660:
661: my $load;
662: if ($loadans =~ /\d/) {
663: if ($userloadans =~ /\d/) {
664: #both are numbers, pick the bigger one
665: $load = ($loadans > $userloadans) ? $loadans
666: : $userloadans;
1.411 albertel 667: } else {
1.784 albertel 668: $load = $loadans;
1.411 albertel 669: }
1.784 albertel 670: } else {
671: $load = $userloadans;
672: }
673:
674: if (($load =~ /\d/) && ($load < $lowest_load)) {
675: $spare_server = $try_server;
676: $lowest_load = $load;
1.370 albertel 677: }
1.784 albertel 678: return ($spare_server,$lowest_load);
1.202 matthew 679: }
1.914 albertel 680:
681: # --------------------------- ask offload servers if user already has a session
682: sub find_existing_session {
683: my ($udom,$uname) = @_;
684: foreach my $try_server (@{ $spareid{'primary'} },
685: @{ $spareid{'default'} }) {
686: return $try_server if (&has_user_session($try_server, $udom, $uname));
687: }
688: return;
689: }
690:
691: # -------------------------------- ask if server already has a session for user
692: sub has_user_session {
693: my ($lonid,$udom,$uname) = @_;
694: my $result = &reply(join(':','userhassession',
695: map {&escape($_)} ($udom,$uname)),$lonid);
696: return 1 if ($result eq 'ok');
697:
698: return 0;
699: }
700:
1.202 matthew 701: # --------------------------------------------- Try to change a user's password
702:
703: sub changepass {
1.799 raeburn 704: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 705: $currentpass = &escape($currentpass);
706: $newpass = &escape($newpass);
1.799 raeburn 707: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context",
1.202 matthew 708: $server);
709: if (! $answer) {
710: &logthis("No reply on password change request to $server ".
711: "by $uname in domain $udom.");
712: } elsif ($answer =~ "^ok") {
713: &logthis("$uname in $udom successfully changed their password ".
714: "on $server.");
715: } elsif ($answer =~ "^pwchange_failure") {
716: &logthis("$uname in $udom was unable to change their password ".
717: "on $server. The action was blocked by either lcpasswd ".
718: "or pwchange");
719: } elsif ($answer =~ "^non_authorized") {
720: &logthis("$uname in $udom did not get their password correct when ".
721: "attempting to change it on $server.");
722: } elsif ($answer =~ "^auth_mode_error") {
723: &logthis("$uname in $udom attempted to change their password despite ".
724: "not being locally or internally authenticated on $server.");
725: } elsif ($answer =~ "^unknown_user") {
726: &logthis("$uname in $udom attempted to change their password ".
727: "on $server but were unable to because $server is not ".
728: "their home server.");
729: } elsif ($answer =~ "^refused") {
730: &logthis("$server refused to change $uname in $udom password because ".
731: "it was sent an unencrypted request to change the password.");
732: }
733: return $answer;
1.1 albertel 734: }
735:
1.169 harris41 736: # ----------------------- Try to determine user's current authentication scheme
737:
738: sub queryauthenticate {
739: my ($uname,$udom)=@_;
1.456 albertel 740: my $uhome=&homeserver($uname,$udom);
741: if (!$uhome) {
742: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
743: return 'no_host';
744: }
745: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
746: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
747: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 748: }
1.456 albertel 749: return $answer;
1.169 harris41 750: }
751:
1.1 albertel 752: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 753:
1.1 albertel 754: sub authenticate {
1.952 raeburn 755: my ($uname,$upass,$udom,$checkdefauth)=@_;
1.807 albertel 756: $upass=&escape($upass);
757: $uname= &LONCAPA::clean_username($uname);
1.836 www 758: my $uhome=&homeserver($uname,$udom,1);
1.952 raeburn 759: my $newhome;
1.836 www 760: if ((!$uhome) || ($uhome eq 'no_host')) {
761: # Maybe the machine was offline and only re-appeared again recently?
762: &reconlonc();
763: # One more
1.952 raeburn 764: $uhome=&homeserver($uname,$udom,1);
765: if (($uhome eq 'no_host') && $checkdefauth) {
766: if (defined(&domain($udom,'primary'))) {
767: $newhome=&domain($udom,'primary');
768: }
769: if ($newhome ne '') {
770: $uhome = $newhome;
771: }
772: }
1.836 www 773: if ((!$uhome) || ($uhome eq 'no_host')) {
774: &logthis("User $uname at $udom is unknown in authenticate");
1.952 raeburn 775: return 'no_host';
776: }
1.1 albertel 777: }
1.952 raeburn 778: my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth",$uhome);
1.471 albertel 779: if ($answer eq 'authorized') {
1.952 raeburn 780: if ($newhome) {
781: &logthis("User $uname at $udom authorized by $uhome, but needs account");
782: return 'no_account_on_host';
783: } else {
784: &logthis("User $uname at $udom authorized by $uhome");
785: return $uhome;
786: }
1.471 albertel 787: }
788: if ($answer eq 'non_authorized') {
789: &logthis("User $uname at $udom rejected by $uhome");
790: return 'no_host';
1.9 www 791: }
1.471 albertel 792: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 793: return 'no_host';
794: }
795:
796: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 797:
1.599 albertel 798: my %homecache;
1.1 albertel 799: sub homeserver {
1.230 stredwic 800: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 801: my $index="$uname:$udom";
1.426 albertel 802:
1.599 albertel 803: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 804:
805: my %servers = &get_servers($udom,'library');
806: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 807: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 808: exists($badServerCache{$tryserver}));
1.841 albertel 809:
810: my $answer=reply("home:$udom:$uname",$tryserver);
811: if ($answer eq 'found') {
812: delete($badServerCache{$tryserver});
813: return $homecache{$index}=$tryserver;
814: } elsif ($answer eq 'no_host') {
815: $badServerCache{$tryserver}=1;
816: }
1.1 albertel 817: }
818: return 'no_host';
1.70 www 819: }
820:
821: # ------------------------------------- Find the usernames behind a list of IDs
822:
823: sub idget {
824: my ($udom,@ids)=@_;
825: my %returnhash=();
826:
1.841 albertel 827: my %servers = &get_servers($udom,'library');
828: foreach my $tryserver (keys(%servers)) {
829: my $idlist=join('&',@ids);
830: $idlist=~tr/A-Z/a-z/;
831: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
832: my @answer=();
833: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
834: @answer=split(/\&/,$reply);
835: } ;
836: my $i;
837: for ($i=0;$i<=$#ids;$i++) {
838: if ($answer[$i]) {
839: $returnhash{$ids[$i]}=$answer[$i];
840: }
841: }
842: }
1.70 www 843: return %returnhash;
844: }
845:
846: # ------------------------------------- Find the IDs behind a list of usernames
847:
848: sub idrget {
849: my ($udom,@unames)=@_;
850: my %returnhash=();
1.800 albertel 851: foreach my $uname (@unames) {
852: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 853: }
1.70 www 854: return %returnhash;
855: }
856:
857: # ------------------------------- Store away a list of names and associated IDs
858:
859: sub idput {
860: my ($udom,%ids)=@_;
861: my %servers=();
1.800 albertel 862: foreach my $uname (keys(%ids)) {
863: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
864: my $uhom=&homeserver($uname,$udom);
1.70 www 865: if ($uhom ne 'no_host') {
1.800 albertel 866: my $id=&escape($ids{$uname});
1.70 www 867: $id=~tr/A-Z/a-z/;
1.800 albertel 868: my $esc_unam=&escape($uname);
1.70 www 869: if ($servers{$uhom}) {
1.800 albertel 870: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 871: } else {
1.800 albertel 872: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 873: }
874: }
1.191 harris41 875: }
1.800 albertel 876: foreach my $server (keys(%servers)) {
877: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 878: }
1.344 www 879: }
880:
1.806 raeburn 881: # ------------------------------------------- get items from domain db files
882:
883: sub get_dom {
1.860 raeburn 884: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 885: my $items='';
886: foreach my $item (@$storearr) {
887: $items.=&escape($item).'&';
888: }
889: $items=~s/\&$//;
1.860 raeburn 890: if (!$udom) {
891: $udom=$env{'user.domain'};
892: if (defined(&domain($udom,'primary'))) {
893: $uhome=&domain($udom,'primary');
894: } else {
1.874 albertel 895: undef($uhome);
1.860 raeburn 896: }
897: } else {
898: if (!$uhome) {
899: if (defined(&domain($udom,'primary'))) {
900: $uhome=&domain($udom,'primary');
901: }
902: }
903: }
904: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 905: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 906: my %returnhash;
1.875 albertel 907: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 908: return %returnhash;
909: }
1.806 raeburn 910: my @pairs=split(/\&/,$rep);
911: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
912: return @pairs;
913: }
914: my $i=0;
915: foreach my $item (@$storearr) {
916: $returnhash{$item}=&thaw_unescape($pairs[$i]);
917: $i++;
918: }
919: return %returnhash;
920: } else {
1.880 banghart 921: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 922: }
923: }
924:
925: # -------------------------------------------- put items in domain db files
926:
927: sub put_dom {
1.860 raeburn 928: my ($namespace,$storehash,$udom,$uhome)=@_;
929: if (!$udom) {
930: $udom=$env{'user.domain'};
931: if (defined(&domain($udom,'primary'))) {
932: $uhome=&domain($udom,'primary');
933: } else {
1.874 albertel 934: undef($uhome);
1.860 raeburn 935: }
936: } else {
937: if (!$uhome) {
938: if (defined(&domain($udom,'primary'))) {
939: $uhome=&domain($udom,'primary');
940: }
941: }
942: }
943: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 944: my $items='';
945: foreach my $item (keys(%$storehash)) {
946: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
947: }
948: $items=~s/\&$//;
949: return &reply("putdom:$udom:$namespace:$items",$uhome);
950: } else {
1.860 raeburn 951: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 952: }
953: }
954:
1.837 raeburn 955: sub retrieve_inst_usertypes {
956: my ($udom) = @_;
957: my (%returnhash,@order);
1.846 albertel 958: if (defined(&domain($udom,'primary'))) {
959: my $uhome=&domain($udom,'primary');
1.837 raeburn 960: my $rep=&reply("inst_usertypes:$udom",$uhome);
1.960 raeburn 961: if ($rep =~ /^(con_lost|error|no_such_host|refused)/) {
962: &logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
963: return (\%returnhash,\@order);
964: }
1.837 raeburn 965: my ($hashitems,$orderitems) = split(/:/,$rep);
966: my @pairs=split(/\&/,$hashitems);
967: foreach my $item (@pairs) {
968: my ($key,$value)=split(/=/,$item,2);
969: $key = &unescape($key);
970: next if ($key =~ /^error: 2 /);
971: $returnhash{$key}=&thaw_unescape($value);
972: }
973: my @esc_order = split(/\&/,$orderitems);
974: foreach my $item (@esc_order) {
975: push(@order,&unescape($item));
976: }
977: } else {
978: &logthis("get_dom failed - no primary domain server for $udom");
979: }
980: return (\%returnhash,\@order);
981: }
982:
1.868 raeburn 983: sub is_domainimage {
984: my ($url) = @_;
985: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
986: if (&domain($1) ne '') {
987: return '1';
988: }
989: }
990: return;
991: }
992:
1.899 raeburn 993: sub inst_directory_query {
994: my ($srch) = @_;
995: my $udom = $srch->{'srchdomain'};
996: my %results;
997: my $homeserver = &domain($udom,'primary');
1.909 raeburn 998: my $outcome;
1.899 raeburn 999: if ($homeserver ne '') {
1.904 albertel 1000: my $queryid=&reply("querysend:instdirsearch:".
1001: &escape($srch->{'srchby'}).':'.
1002: &escape($srch->{'srchterm'}).':'.
1003: &escape($srch->{'srchtype'}),$homeserver);
1004: my $host=&hostname($homeserver);
1005: if ($queryid !~/^\Q$host\E\_/) {
1006: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1007: return;
1008: }
1009: my $response = &get_query_reply($queryid);
1010: my $maxtries = 5;
1011: my $tries = 1;
1012: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1013: $response = &get_query_reply($queryid);
1014: $tries ++;
1015: }
1016:
1017: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 1018: if ($response eq 'unavailable') {
1019: $outcome = $response;
1020: } else {
1021: $outcome = 'ok';
1022: my @matches = split(/\n/,$response);
1023: foreach my $match (@matches) {
1024: my ($key,$value) = split(/=/,$match);
1025: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
1026: }
1.899 raeburn 1027: }
1028: }
1029: }
1.909 raeburn 1030: return ($outcome,%results);
1.899 raeburn 1031: }
1032:
1033: sub usersearch {
1034: my ($srch) = @_;
1035: my $dom = $srch->{'srchdomain'};
1036: my %results;
1037: my %libserv = &all_library();
1038: my $query = 'usersearch';
1039: foreach my $tryserver (keys(%libserv)) {
1040: if (&host_domain($tryserver) eq $dom) {
1041: my $host=&hostname($tryserver);
1042: my $queryid=
1.911 raeburn 1043: &reply("querysend:".&escape($query).':'.
1044: &escape($srch->{'srchby'}).':'.
1.899 raeburn 1045: &escape($srch->{'srchtype'}).':'.
1046: &escape($srch->{'srchterm'}),$tryserver);
1047: if ($queryid !~/^\Q$host\E\_/) {
1048: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 1049: next;
1.899 raeburn 1050: }
1051: my $reply = &get_query_reply($queryid);
1052: my $maxtries = 1;
1053: my $tries = 1;
1054: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
1055: $reply = &get_query_reply($queryid);
1056: $tries ++;
1057: }
1058: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1059: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
1060: } else {
1.911 raeburn 1061: my @matches;
1062: if ($reply =~ /\n/) {
1063: @matches = split(/\n/,$reply);
1064: } else {
1065: @matches = split(/\&/,$reply);
1066: }
1.899 raeburn 1067: foreach my $match (@matches) {
1068: my ($uname,$udom,%userhash);
1.911 raeburn 1069: foreach my $entry (split(/:/,$match)) {
1070: my ($key,$value) =
1071: map {&unescape($_);} split(/=/,$entry);
1.899 raeburn 1072: $userhash{$key} = $value;
1073: if ($key eq 'username') {
1074: $uname = $value;
1075: } elsif ($key eq 'domain') {
1076: $udom = $value;
1.911 raeburn 1077: }
1.899 raeburn 1078: }
1079: $results{$uname.':'.$udom} = \%userhash;
1080: }
1081: }
1082: }
1083: }
1084: return %results;
1085: }
1086:
1.912 raeburn 1087: sub get_instuser {
1088: my ($udom,$uname,$id) = @_;
1089: my $homeserver = &domain($udom,'primary');
1090: my ($outcome,%results);
1091: if ($homeserver ne '') {
1092: my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
1093: &escape($id).':'.&escape($udom),$homeserver);
1094: my $host=&hostname($homeserver);
1095: if ($queryid !~/^\Q$host\E\_/) {
1096: &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
1097: return;
1098: }
1099: my $response = &get_query_reply($queryid);
1100: my $maxtries = 5;
1101: my $tries = 1;
1102: while (($response=~/^timeout/) && ($tries < $maxtries)) {
1103: $response = &get_query_reply($queryid);
1104: $tries ++;
1105: }
1106: if (!&error($response) && $response ne 'refused') {
1107: if ($response eq 'unavailable') {
1108: $outcome = $response;
1109: } else {
1110: $outcome = 'ok';
1111: my @matches = split(/\n/,$response);
1112: foreach my $match (@matches) {
1113: my ($key,$value) = split(/=/,$match);
1114: $results{&unescape($key)} = &thaw_unescape($value);
1115: }
1116: }
1117: }
1118: }
1119: my %userinfo;
1120: if (ref($results{$uname}) eq 'HASH') {
1121: %userinfo = %{$results{$uname}};
1122: }
1123: return ($outcome,%userinfo);
1124: }
1125:
1126: sub inst_rulecheck {
1.923 raeburn 1127: my ($udom,$uname,$id,$item,$rules) = @_;
1.912 raeburn 1128: my %returnhash;
1129: if ($udom ne '') {
1130: if (ref($rules) eq 'ARRAY') {
1131: @{$rules} = map {&escape($_);} (@{$rules});
1132: my $rulestr = join(':',@{$rules});
1133: my $homeserver=&domain($udom,'primary');
1134: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1135: my $response;
1136: if ($item eq 'username') {
1137: $response=&unescape(&reply('instrulecheck:'.&escape($udom).
1138: ':'.&escape($uname).':'.$rulestr,
1.912 raeburn 1139: $homeserver));
1.923 raeburn 1140: } elsif ($item eq 'id') {
1141: $response=&unescape(&reply('instidrulecheck:'.&escape($udom).
1142: ':'.&escape($id).':'.$rulestr,
1143: $homeserver));
1.945 raeburn 1144: } elsif ($item eq 'selfcreate') {
1145: $response=&unescape(&reply('instselfcreatecheck:'.
1.943 raeburn 1146: &escape($udom).':'.&escape($uname).
1147: ':'.$rulestr,$homeserver));
1.923 raeburn 1148: }
1.912 raeburn 1149: if ($response ne 'refused') {
1150: my @pairs=split(/\&/,$response);
1151: foreach my $item (@pairs) {
1152: my ($key,$value)=split(/=/,$item,2);
1153: $key = &unescape($key);
1154: next if ($key =~ /^error: 2 /);
1155: $returnhash{$key}=&thaw_unescape($value);
1156: }
1157: }
1158: }
1159: }
1160: }
1161: return %returnhash;
1162: }
1163:
1164: sub inst_userrules {
1.923 raeburn 1165: my ($udom,$check) = @_;
1.912 raeburn 1166: my (%ruleshash,@ruleorder);
1167: if ($udom ne '') {
1168: my $homeserver=&domain($udom,'primary');
1169: if (($homeserver ne '') && ($homeserver ne 'no_host')) {
1.923 raeburn 1170: my $response;
1171: if ($check eq 'id') {
1172: $response=&reply('instidrules:'.&escape($udom),
1.912 raeburn 1173: $homeserver);
1.943 raeburn 1174: } elsif ($check eq 'email') {
1175: $response=&reply('instemailrules:'.&escape($udom),
1176: $homeserver);
1.923 raeburn 1177: } else {
1178: $response=&reply('instuserrules:'.&escape($udom),
1179: $homeserver);
1180: }
1.912 raeburn 1181: if (($response ne 'refused') && ($response ne 'error') &&
1.923 raeburn 1182: ($response ne 'unknown_cmd') &&
1.912 raeburn 1183: ($response ne 'no_such_host')) {
1184: my ($hashitems,$orderitems) = split(/:/,$response);
1185: my @pairs=split(/\&/,$hashitems);
1186: foreach my $item (@pairs) {
1187: my ($key,$value)=split(/=/,$item,2);
1188: $key = &unescape($key);
1189: next if ($key =~ /^error: 2 /);
1190: $ruleshash{$key}=&thaw_unescape($value);
1191: }
1192: my @esc_order = split(/\&/,$orderitems);
1193: foreach my $item (@esc_order) {
1194: push(@ruleorder,&unescape($item));
1195: }
1196: }
1197: }
1198: }
1199: return (\%ruleshash,\@ruleorder);
1200: }
1201:
1.943 raeburn 1202: # ------------------------- Get Authentication and Language Defaults for Domain
1203:
1204: sub get_domain_defaults {
1205: my ($domain) = @_;
1206: my $cachetime = 60*60*24;
1207: my ($defauthtype,$defautharg,$deflang);
1208: my ($result,$cached)=&is_cached_new('domdefaults',$domain);
1209: if (defined($cached)) {
1210: if (ref($result) eq 'HASH') {
1211: return %{$result};
1212: }
1213: }
1214: my %domdefaults;
1215: my %domconfig =
1216: &Apache::lonnet::get_dom('configuration',['defaults'],$domain);
1217: if (ref($domconfig{'defaults'}) eq 'HASH') {
1218: $domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
1219: $domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
1220: $domdefaults{'auth_arg_def'} = $domconfig{'defaults'}{'auth_arg_def'};
1221: } else {
1222: $domdefaults{'lang_def'} = &domain($domain,'lang_def');
1223: $domdefaults{'auth_def'} = &domain($domain,'auth_def');
1224: $domdefaults{'auth_arg_def'} = &domain($domain,'auth_arg_def');
1225: }
1226: &Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
1227: $cachetime);
1228: return %domdefaults;
1229: }
1230:
1.344 www 1231: # --------------------------------------------------- Assign a key to a student
1232:
1233: sub assign_access_key {
1.364 www 1234: #
1235: # a valid key looks like uname:udom#comments
1236: # comments are being appended
1237: #
1.498 www 1238: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
1239: $kdom=
1.620 albertel 1240: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 1241: $knum=
1.620 albertel 1242: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 1243: $cdom=
1.620 albertel 1244: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1245: $cnum=
1.620 albertel 1246: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1247: $udom=$env{'user.name'} unless (defined($udom));
1248: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 1249: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 1250: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 1251: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1252: # assigned to this person
1253: # - this should not happen,
1.345 www 1254: # unless something went wrong
1255: # the first time around
1256: # ready to assign
1.364 www 1257: $logentry=$1.'; '.$logentry;
1.496 www 1258: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1259: $kdom,$knum) eq 'ok') {
1.345 www 1260: # key now belongs to user
1.346 www 1261: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1262: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1.949 raeburn 1263: &appenv({'environment.'.$envkey => $ckey});
1.345 www 1264: return 'ok';
1265: } else {
1266: return
1267: 'error: Count not permanently assign key, will need to be re-entered later.';
1268: }
1269: } else {
1270: return 'error: Could not assign key, try again later.';
1271: }
1.364 www 1272: } elsif (!$existing{$ckey}) {
1.345 www 1273: # the key does not exist
1274: return 'error: The key does not exist';
1275: } else {
1276: # the key is somebody else's
1277: return 'error: The key is already in use';
1278: }
1.344 www 1279: }
1280:
1.364 www 1281: # ------------------------------------------ put an additional comment on a key
1282:
1283: sub comment_access_key {
1284: #
1285: # a valid key looks like uname:udom#comments
1286: # comments are being appended
1287: #
1288: my ($ckey,$cdom,$cnum,$logentry)=@_;
1289: $cdom=
1.620 albertel 1290: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1291: $cnum=
1.620 albertel 1292: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1293: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1294: if ($existing{$ckey}) {
1295: $existing{$ckey}.='; '.$logentry;
1296: # ready to assign
1.367 www 1297: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1298: $cdom,$cnum) eq 'ok') {
1299: return 'ok';
1300: } else {
1301: return 'error: Count not store comment.';
1302: }
1303: } else {
1304: # the key does not exist
1305: return 'error: The key does not exist';
1306: }
1307: }
1308:
1.344 www 1309: # ------------------------------------------------------ Generate a set of keys
1310:
1311: sub generate_access_keys {
1.364 www 1312: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1313: $cdom=
1.620 albertel 1314: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1315: $cnum=
1.620 albertel 1316: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1317: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1318: unless (($cdom) && ($cnum)) { return 0; }
1319: if ($number>10000) { return 0; }
1320: sleep(2); # make sure don't get same seed twice
1321: srand(time()^($$+($$<<15))); # from "Programming Perl"
1322: my $total=0;
1323: for (my $i=1;$i<=$number;$i++) {
1324: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1325: sprintf("%lx",int(100000*rand)).'-'.
1326: sprintf("%lx",int(100000*rand));
1327: $newkey=~s/1/g/g; # folks mix up 1 and l
1328: $newkey=~s/0/h/g; # and also 0 and O
1329: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1330: if ($existing{$newkey}) {
1331: $i--;
1332: } else {
1.364 www 1333: if (&put('accesskeys',
1334: { $newkey => '# generated '.localtime().
1.620 albertel 1335: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1336: '; '.$logentry },
1337: $cdom,$cnum) eq 'ok') {
1.344 www 1338: $total++;
1339: }
1340: }
1341: }
1.620 albertel 1342: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1343: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1344: return $total;
1345: }
1346:
1347: # ------------------------------------------------------- Validate an accesskey
1348:
1349: sub validate_access_key {
1350: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1351: $cdom=
1.620 albertel 1352: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1353: $cnum=
1.620 albertel 1354: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1355: $udom=$env{'user.domain'} unless (defined($udom));
1356: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1357: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1358: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1359: }
1360:
1361: # ------------------------------------- Find the section of student in a course
1.652 albertel 1362: sub devalidate_getsection_cache {
1363: my ($udom,$unam,$courseid)=@_;
1364: my $hashid="$udom:$unam:$courseid";
1365: &devalidate_cache_new('getsection',$hashid);
1366: }
1.298 matthew 1367:
1.815 albertel 1368: sub courseid_to_courseurl {
1369: my ($courseid) = @_;
1370: #already url style courseid
1371: return $courseid if ($courseid =~ m{^/});
1372:
1373: if (exists($env{'course.'.$courseid.'.num'})) {
1374: my $cnum = $env{'course.'.$courseid.'.num'};
1375: my $cdom = $env{'course.'.$courseid.'.domain'};
1376: return "/$cdom/$cnum";
1377: }
1378:
1379: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1380: if (exists($courseinfo{'num'})) {
1381: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1382: }
1383:
1384: return undef;
1385: }
1386:
1.298 matthew 1387: sub getsection {
1388: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1389: my $cachetime=1800;
1.551 albertel 1390:
1391: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1392: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1393: if (defined($cached)) { return $result; }
1394:
1.298 matthew 1395: my %Pending;
1396: my %Expired;
1397: #
1398: # Each role can either have not started yet (pending), be active,
1399: # or have expired.
1400: #
1401: # If there is an active role, we are done.
1402: #
1403: # If there is more than one role which has not started yet,
1404: # choose the one which will start sooner
1405: # If there is one role which has not started yet, return it.
1406: #
1407: # If there is more than one expired role, choose the one which ended last.
1408: # If there is a role which has expired, return it.
1409: #
1.815 albertel 1410: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1411: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1412: foreach my $key (keys(%roleshash)) {
1.479 albertel 1413: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1414: my $section=$1;
1415: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1416: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1417: my $now=time;
1.548 albertel 1418: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1419: $Expired{$end}=$section;
1420: next;
1421: }
1.548 albertel 1422: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1423: $Pending{$start}=$section;
1424: next;
1425: }
1.599 albertel 1426: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1427: }
1428: #
1429: # Presumedly there will be few matching roles from the above
1430: # loop and the sorting time will be negligible.
1431: if (scalar(keys(%Pending))) {
1432: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1433: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1434: }
1435: if (scalar(keys(%Expired))) {
1436: my @sorted = sort {$a <=> $b} keys(%Expired);
1437: my $time = pop(@sorted);
1.599 albertel 1438: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1439: }
1.599 albertel 1440: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1441: }
1.70 www 1442:
1.599 albertel 1443: sub save_cache {
1444: &purge_remembered();
1.722 albertel 1445: #&Apache::loncommon::validate_page();
1.620 albertel 1446: undef(%env);
1.780 albertel 1447: undef($env_loaded);
1.599 albertel 1448: }
1.452 albertel 1449:
1.599 albertel 1450: my $to_remember=-1;
1451: my %remembered;
1452: my %accessed;
1453: my $kicks=0;
1454: my $hits=0;
1.849 albertel 1455: sub make_key {
1456: my ($name,$id) = @_;
1.872 albertel 1457: if (length($id) > 65
1458: && length(&escape($id)) > 200) {
1459: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1460: }
1.849 albertel 1461: return &escape($name.':'.$id);
1462: }
1463:
1.599 albertel 1464: sub devalidate_cache_new {
1465: my ($name,$id,$debug) = @_;
1466: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1467: $id=&make_key($name,$id);
1.599 albertel 1468: $memcache->delete($id);
1469: delete($remembered{$id});
1470: delete($accessed{$id});
1471: }
1472:
1473: sub is_cached_new {
1474: my ($name,$id,$debug) = @_;
1.849 albertel 1475: $id=&make_key($name,$id);
1.599 albertel 1476: if (exists($remembered{$id})) {
1477: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1478: $accessed{$id}=[&gettimeofday()];
1479: $hits++;
1480: return ($remembered{$id},1);
1481: }
1482: my $value = $memcache->get($id);
1483: if (!(defined($value))) {
1484: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1485: return (undef,undef);
1.416 albertel 1486: }
1.599 albertel 1487: if ($value eq '__undef__') {
1488: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1489: $value=undef;
1490: }
1491: &make_room($id,$value,$debug);
1492: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1493: return ($value,1);
1494: }
1495:
1496: sub do_cache_new {
1497: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1498: $id=&make_key($name,$id);
1.599 albertel 1499: my $setvalue=$value;
1500: if (!defined($setvalue)) {
1501: $setvalue='__undef__';
1502: }
1.623 albertel 1503: if (!defined($time) ) {
1504: $time=600;
1505: }
1.599 albertel 1506: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1507: my $result = $memcache->set($id,$setvalue,$time);
1508: if (! $result) {
1.872 albertel 1509: &logthis("caching of id -> $id failed");
1.910 albertel 1510: $memcache->disconnect_all();
1.872 albertel 1511: }
1.600 albertel 1512: # need to make a copy of $value
1.919 albertel 1513: &make_room($id,$value,$debug);
1.599 albertel 1514: return $value;
1515: }
1516:
1517: sub make_room {
1518: my ($id,$value,$debug)=@_;
1.919 albertel 1519:
1520: $remembered{$id}= (ref($value)) ? &Storable::dclone($value)
1521: : $value;
1.599 albertel 1522: if ($to_remember<0) { return; }
1523: $accessed{$id}=[&gettimeofday()];
1524: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1525: my $to_kick;
1526: my $max_time=0;
1527: foreach my $other (keys(%accessed)) {
1528: if (&tv_interval($accessed{$other}) > $max_time) {
1529: $to_kick=$other;
1530: $max_time=&tv_interval($accessed{$other});
1531: }
1532: }
1533: delete($remembered{$to_kick});
1534: delete($accessed{$to_kick});
1535: $kicks++;
1536: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1537: return;
1538: }
1539:
1.599 albertel 1540: sub purge_remembered {
1.604 albertel 1541: #&logthis("Tossing ".scalar(keys(%remembered)));
1542: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1543: undef(%remembered);
1544: undef(%accessed);
1.428 albertel 1545: }
1.70 www 1546: # ------------------------------------- Read an entry from a user's environment
1547:
1548: sub userenvironment {
1549: my ($udom,$unam,@what)=@_;
1550: my %returnhash=();
1551: my @answer=split(/\&/,
1552: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
1553: &homeserver($unam,$udom)));
1554: my $i;
1555: for ($i=0;$i<=$#what;$i++) {
1556: $returnhash{$what[$i]}=&unescape($answer[$i]);
1557: }
1558: return %returnhash;
1.1 albertel 1559: }
1560:
1.617 albertel 1561: # ---------------------------------------------------------- Get a studentphoto
1562: sub studentphoto {
1563: my ($udom,$unam,$ext) = @_;
1564: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1565: if (defined($env{'request.course.id'})) {
1.708 raeburn 1566: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1567: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1568: return(&retrievestudentphoto($udom,$unam,$ext));
1569: } else {
1570: my ($result,$perm_reqd)=
1.707 albertel 1571: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1572: if ($result eq 'ok') {
1573: if (!($perm_reqd eq 'yes')) {
1574: return(&retrievestudentphoto($udom,$unam,$ext));
1575: }
1576: }
1577: }
1578: }
1579: } else {
1580: my ($result,$perm_reqd) =
1.707 albertel 1581: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1582: if ($result eq 'ok') {
1583: if (!($perm_reqd eq 'yes')) {
1584: return(&retrievestudentphoto($udom,$unam,$ext));
1585: }
1586: }
1587: }
1588: return '/adm/lonKaputt/lonlogo_broken.gif';
1589: }
1590:
1591: sub retrievestudentphoto {
1592: my ($udom,$unam,$ext,$type) = @_;
1593: my $home=&Apache::lonnet::homeserver($unam,$udom);
1594: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1595: if ($ret eq 'ok') {
1596: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1597: if ($type eq 'thumbnail') {
1598: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1599: }
1600: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1601: return $tokenurl;
1602: } else {
1603: if ($type eq 'thumbnail') {
1604: return '/adm/lonKaputt/genericstudent_tn.gif';
1605: } else {
1606: return '/adm/lonKaputt/lonlogo_broken.gif';
1607: }
1.617 albertel 1608: }
1609: }
1610:
1.263 www 1611: # -------------------------------------------------------------------- New chat
1612:
1613: sub chatsend {
1.724 raeburn 1614: my ($newentry,$anon,$group)=@_;
1.620 albertel 1615: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1616: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1617: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1618: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1619: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1620: &escape($newentry)).':'.$group,$chome);
1.292 www 1621: }
1622:
1623: # ------------------------------------------ Find current version of a resource
1624:
1625: sub getversion {
1626: my $fname=&clutter(shift);
1627: unless ($fname=~/^\/res\//) { return -1; }
1628: return ¤tversion(&filelocation('',$fname));
1629: }
1630:
1631: sub currentversion {
1632: my $fname=shift;
1.599 albertel 1633: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1634: if (defined($cached)) { return $result; }
1.292 www 1635: my $author=$fname;
1636: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1637: my ($udom,$uname)=split(/\//,$author);
1638: my $home=homeserver($uname,$udom);
1639: if ($home eq 'no_host') {
1640: return -1;
1641: }
1642: my $answer=reply("currentversion:$fname",$home);
1643: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1644: return -1;
1645: }
1.599 albertel 1646: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1647: }
1648:
1.1 albertel 1649: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1650:
1.1 albertel 1651: sub subscribe {
1652: my $fname=shift;
1.761 raeburn 1653: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1654: $fname=~s/[\n\r]//g;
1.1 albertel 1655: my $author=$fname;
1656: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1657: my ($udom,$uname)=split(/\//,$author);
1658: my $home=homeserver($uname,$udom);
1.335 albertel 1659: if ($home eq 'no_host') {
1660: return 'not_found';
1.1 albertel 1661: }
1662: my $answer=reply("sub:$fname",$home);
1.64 www 1663: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1664: $answer.=' by '.$home;
1665: }
1.1 albertel 1666: return $answer;
1667: }
1668:
1.8 www 1669: # -------------------------------------------------------------- Replicate file
1670:
1671: sub repcopy {
1672: my $filename=shift;
1.23 www 1673: $filename=~s/\/+/\//g;
1.607 raeburn 1674: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1675: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1676: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1677: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1678: return &repcopy_userfile($filename);
1679: }
1.532 albertel 1680: $filename=~s/[\n\r]//g;
1.8 www 1681: my $transname="$filename.in.transfer";
1.828 www 1682: # FIXME: this should flock
1.607 raeburn 1683: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1684: my $remoteurl=subscribe($filename);
1.64 www 1685: if ($remoteurl =~ /^con_lost by/) {
1686: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1687: return 'unavailable';
1.8 www 1688: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1689: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1690: return 'not_found';
1.64 www 1691: } elsif ($remoteurl =~ /^rejected by/) {
1692: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1693: return 'forbidden';
1.20 www 1694: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1695: return 'ok';
1.8 www 1696: } else {
1.290 www 1697: my $author=$filename;
1698: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1699: my ($udom,$uname)=split(/\//,$author);
1700: my $home=homeserver($uname,$udom);
1701: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1702: my @parts=split(/\//,$filename);
1703: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1704: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1705: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1706: return 'bad_request';
1.8 www 1707: }
1708: my $count;
1709: for ($count=5;$count<$#parts;$count++) {
1710: $path.="/$parts[$count]";
1711: if ((-e $path)!=1) {
1712: mkdir($path,0777);
1713: }
1714: }
1715: my $ua=new LWP::UserAgent;
1716: my $request=new HTTP::Request('GET',"$remoteurl");
1717: my $response=$ua->request($request,$transname);
1718: if ($response->is_error()) {
1719: unlink($transname);
1720: my $message=$response->status_line;
1.672 albertel 1721: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1722: ." LWP get: $message: $filename</font>");
1.607 raeburn 1723: return 'unavailable';
1.8 www 1724: } else {
1.16 www 1725: if ($remoteurl!~/\.meta$/) {
1726: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1727: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1728: if ($mresponse->is_error()) {
1729: unlink($filename.'.meta');
1730: &logthis(
1.672 albertel 1731: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1732: }
1733: }
1.8 www 1734: rename($transname,$filename);
1.607 raeburn 1735: return 'ok';
1.8 www 1736: }
1.290 www 1737: }
1.8 www 1738: }
1.330 www 1739: }
1740:
1741: # ------------------------------------------------ Get server side include body
1742: sub ssi_body {
1.381 albertel 1743: my ($filelink,%form)=@_;
1.606 matthew 1744: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1745: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1746: }
1.953 www 1747: my $output='';
1748: my $response;
1749: if ($filelink=~/^http\:/) {
1.954 raeburn 1750: ($output,$response)=&externalssi($filelink);
1.953 www 1751: } else {
1752: ($output,$response)=&ssi($filelink,%form);
1753: }
1.778 albertel 1754: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1755: $output=~s/^.*?\<body[^\>]*\>//si;
1.930 albertel 1756: $output=~s/\<\/body\s*\>.*?$//si;
1.953 www 1757: if (wantarray) {
1758: return ($output, $response);
1759: } else {
1760: return $output;
1761: }
1.8 www 1762: }
1763:
1.15 www 1764: # --------------------------------------------------------- Server Side Include
1765:
1.782 albertel 1766: sub absolute_url {
1767: my ($host_name) = @_;
1768: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1769: if ($host_name eq '') {
1770: $host_name = $ENV{'SERVER_NAME'};
1771: }
1772: return $protocol.$host_name;
1773: }
1774:
1.942 foxr 1775: #
1776: # Server side include.
1777: # Parameters:
1778: # fn Possibly encrypted resource name/id.
1779: # form Hash that describes how the rendering should be done
1780: # and other things.
1.944 foxr 1781: # Returns:
1.950 raeburn 1782: # Scalar context: The content of the response.
1783: # Array context: 2 element list of the content and the full response object.
1.942 foxr 1784: #
1.15 www 1785: sub ssi {
1786:
1.944 foxr 1787: my ($fn,%form)=@_;
1.15 www 1788: my $ua=new LWP::UserAgent;
1.23 www 1789: my $request;
1.711 albertel 1790:
1791: $form{'no_update_last_known'}=1;
1.895 albertel 1792: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 1793: if (%form) {
1.782 albertel 1794: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.201 albertel 1795: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
1.23 www 1796: } else {
1.782 albertel 1797: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1798: }
1799:
1.15 www 1800: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1801: my $response=$ua->request($request);
1802:
1.944 foxr 1803: if (wantarray) {
1804: return ($response->content, $response);
1805: } else {
1806: return $response->content;
1.942 foxr 1807: }
1.324 www 1808: }
1809:
1810: sub externalssi {
1811: my ($url)=@_;
1812: my $ua=new LWP::UserAgent;
1813: my $request=new HTTP::Request('GET',$url);
1814: my $response=$ua->request($request);
1.954 raeburn 1815: if (wantarray) {
1816: return ($response->content, $response);
1817: } else {
1818: return $response->content;
1819: }
1.15 www 1820: }
1.254 www 1821:
1.492 albertel 1822: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1823:
1824: sub allowuploaded {
1825: my ($srcurl,$url)=@_;
1826: $url=&clutter(&declutter($url));
1827: my $dir=$url;
1828: $dir=~s/\/[^\/]+$//;
1829: my %httpref=();
1830: my $httpurl=&hreflocation('',$url);
1831: $httpref{'httpref.'.$httpurl}=$srcurl;
1.949 raeburn 1832: &Apache::lonnet::appenv(\%httpref);
1.254 www 1833: }
1.477 raeburn 1834:
1.478 albertel 1835: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1836: # input: action, courseID, current domain, intended
1.637 raeburn 1837: # path to file, source of file, instruction to parse file for objects,
1838: # ref to hash for embedded objects,
1839: # ref to hash for codebase of java objects.
1840: #
1.485 raeburn 1841: # output: url to file (if action was uploaddoc),
1842: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1843: #
1.478 albertel 1844: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1845: # course.
1.477 raeburn 1846: #
1.478 albertel 1847: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1848: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1849: # course's home server.
1.477 raeburn 1850: #
1.478 albertel 1851: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1852: # be copied from $source (current location) to
1853: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1854: # and will then be copied to
1855: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1856: # course's home server.
1.485 raeburn 1857: #
1.481 raeburn 1858: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1859: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1860: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1861: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1862: # in course's home server.
1.637 raeburn 1863: #
1.477 raeburn 1864:
1865: sub process_coursefile {
1.638 albertel 1866: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1867: my $fetchresult;
1.638 albertel 1868: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1869: if ($action eq 'propagate') {
1.638 albertel 1870: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1871: $home);
1.481 raeburn 1872: } else {
1.477 raeburn 1873: my $fpath = '';
1874: my $fname = $file;
1.478 albertel 1875: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1876: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1877: my $filepath = &build_filepath($fpath);
1.481 raeburn 1878: if ($action eq 'copy') {
1879: if ($source eq '') {
1880: $fetchresult = 'no source file';
1881: return $fetchresult;
1882: } else {
1883: my $destination = $filepath.'/'.$fname;
1884: rename($source,$destination);
1885: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1886: $home);
1.481 raeburn 1887: }
1888: } elsif ($action eq 'uploaddoc') {
1889: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 1890: print $fh $env{'form.'.$source};
1.481 raeburn 1891: close($fh);
1.637 raeburn 1892: if ($parser eq 'parse') {
1.961 raeburn 1893: my $parse_result = &extract_embedded_items($filepath.'/'.$fname,$allfiles,$codebase);
1.637 raeburn 1894: unless ($parse_result eq 'ok') {
1895: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
1896: }
1897: }
1.477 raeburn 1898: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1899: $home);
1.481 raeburn 1900: if ($fetchresult eq 'ok') {
1901: return '/uploaded/'.$fpath.'/'.$fname;
1902: } else {
1903: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1904: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 1905: return '/adm/notfound.html';
1906: }
1.477 raeburn 1907: }
1908: }
1.485 raeburn 1909: unless ( $fetchresult eq 'ok') {
1.477 raeburn 1910: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1911: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 1912: }
1913: return $fetchresult;
1914: }
1915:
1.637 raeburn 1916: sub build_filepath {
1917: my ($fpath) = @_;
1918: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
1919: unless ($fpath eq '') {
1920: my @parts=split('/',$fpath);
1921: foreach my $part (@parts) {
1922: $filepath.= '/'.$part;
1923: if ((-e $filepath)!=1) {
1924: mkdir($filepath,0777);
1925: }
1926: }
1927: }
1928: return $filepath;
1929: }
1930:
1931: sub store_edited_file {
1.638 albertel 1932: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 1933: my $file = $primary_url;
1934: $file =~ s#^/uploaded/$docudom/$docuname/##;
1935: my $fpath = '';
1936: my $fname = $file;
1937: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1938: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1939: my $filepath = &build_filepath($fpath);
1940: open(my $fh,'>'.$filepath.'/'.$fname);
1941: print $fh $content;
1942: close($fh);
1.638 albertel 1943: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 1944: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1945: $home);
1.637 raeburn 1946: if ($$fetchresult eq 'ok') {
1947: return '/uploaded/'.$fpath.'/'.$fname;
1948: } else {
1.638 albertel 1949: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1950: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 1951: return '/adm/notfound.html';
1952: }
1953: }
1954:
1.531 albertel 1955: sub clean_filename {
1.831 albertel 1956: my ($fname,$args)=@_;
1.315 www 1957: # Replace Windows backslashes by forward slashes
1.257 www 1958: $fname=~s/\\/\//g;
1.831 albertel 1959: if (!$args->{'keep_path'}) {
1960: # Get rid of everything but the actual filename
1961: $fname=~s/^.*\/([^\/]+)$/$1/;
1962: }
1.315 www 1963: # Replace spaces by underscores
1964: $fname=~s/\s+/\_/g;
1965: # Replace all other weird characters by nothing
1.831 albertel 1966: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 1967: # Replace all .\d. sequences with _\d. so they no longer look like version
1968: # numbers
1969: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 1970: return $fname;
1971: }
1972:
1.608 albertel 1973: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 1974: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 1975: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 1976: # $coursedoc - if true up to the current course
1977: # if false
1978: # $subdir - directory in userfile to store the file into
1.858 raeburn 1979: # $parser - instruction to parse file for objects ($parser = parse)
1980: # $allfiles - reference to hash for embedded objects
1981: # $codebase - reference to hash for codebase of java objects
1982: # $desuname - username for permanent storage of uploaded file
1983: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 1984: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
1985: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 1986: #
1.686 albertel 1987: # output: url of file in userspace, or error: <message>
1988: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 1989:
1990:
1.531 albertel 1991: sub userfileupload {
1.860 raeburn 1992: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
1993: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 1994: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 1995: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 1996: $fname=&clean_filename($fname);
1.315 www 1997: # See if there is anything left
1.257 www 1998: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 1999: chop($env{'form.'.$formname});
1.523 raeburn 2000: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
2001: my $now = time;
2002: my $filepath = 'tmp/helprequests/'.$now;
2003: my @parts=split(/\//,$filepath);
2004: my $fullpath = $perlvar{'lonDaemons'};
2005: for (my $i=0;$i<@parts;$i++) {
2006: $fullpath .= '/'.$parts[$i];
2007: if ((-e $fullpath)!=1) {
2008: mkdir($fullpath,0777);
2009: }
2010: }
2011: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 2012: print $fh $env{'form.'.$formname};
1.523 raeburn 2013: close($fh);
1.741 raeburn 2014: return $fullpath.'/'.$fname;
2015: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
2016: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
2017: '_'.$env{'user.domain'}.'/pending';
2018: my @parts=split(/\//,$filepath);
2019: my $fullpath = $perlvar{'lonDaemons'};
2020: for (my $i=0;$i<@parts;$i++) {
2021: $fullpath .= '/'.$parts[$i];
2022: if ((-e $fullpath)!=1) {
2023: mkdir($fullpath,0777);
2024: }
2025: }
2026: open(my $fh,'>'.$fullpath.'/'.$fname);
2027: print $fh $env{'form.'.$formname};
2028: close($fh);
2029: return $fullpath.'/'.$fname;
1.523 raeburn 2030: }
1.719 banghart 2031:
1.258 www 2032: # Create the directory if not present
1.493 albertel 2033: $fname="$subdir/$fname";
1.259 www 2034: if ($coursedoc) {
1.638 albertel 2035: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2036: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 2037: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 2038: return &finishuserfileupload($docuname,$docudom,
2039: $formname,$fname,$parser,$allfiles,
1.860 raeburn 2040: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 2041: } else {
1.620 albertel 2042: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 2043: return &process_coursefile('uploaddoc',$docuname,$docudom,
2044: $fname,$formname,$parser,
2045: $allfiles,$codebase);
1.481 raeburn 2046: }
1.719 banghart 2047: } elsif (defined($destuname)) {
2048: my $docuname=$destuname;
2049: my $docudom=$destudom;
1.860 raeburn 2050: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2051: $parser,$allfiles,$codebase,
2052: $thumbwidth,$thumbheight);
1.719 banghart 2053:
1.259 www 2054: } else {
1.638 albertel 2055: my $docuname=$env{'user.name'};
2056: my $docudom=$env{'user.domain'};
1.714 raeburn 2057: if (exists($env{'form.group'})) {
2058: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
2059: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
2060: }
1.860 raeburn 2061: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
2062: $parser,$allfiles,$codebase,
2063: $thumbwidth,$thumbheight);
1.259 www 2064: }
1.271 www 2065: }
2066:
2067: sub finishuserfileupload {
1.860 raeburn 2068: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
2069: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 2070: my $path=$docudom.'/'.$docuname.'/';
1.258 www 2071: my $filepath=$perlvar{'lonDocRoot'};
1.860 raeburn 2072: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 2073: $file=$fname;
2074: if ($fname=~m|/|) {
2075: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
2076: $path.=$fnamepath.'/';
2077: }
1.259 www 2078: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 2079: my $count;
2080: for ($count=4;$count<=$#parts;$count++) {
2081: $filepath.="/$parts[$count]";
2082: if ((-e $filepath)!=1) {
2083: mkdir($filepath,0777);
2084: }
2085: }
2086: # Save the file
2087: {
1.701 albertel 2088: if (!open(FH,'>'.$filepath.'/'.$file)) {
2089: &logthis('Failed to create '.$filepath.'/'.$file);
2090: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
2091: return '/adm/notfound.html';
2092: }
2093: if (!print FH ($env{'form.'.$formname})) {
2094: &logthis('Failed to write to '.$filepath.'/'.$file);
2095: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
2096: return '/adm/notfound.html';
2097: }
1.570 albertel 2098: close(FH);
1.258 www 2099: }
1.637 raeburn 2100: if ($parser eq 'parse') {
1.961 raeburn 2101: my $parse_result = &extract_embedded_items($filepath.'/'.$file,$allfiles,
1.638 albertel 2102: $codebase);
1.637 raeburn 2103: unless ($parse_result eq 'ok') {
1.638 albertel 2104: &logthis('Failed to parse '.$filepath.$file.
2105: ' for embedded media: '.$parse_result);
1.637 raeburn 2106: }
2107: }
1.860 raeburn 2108: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
2109: my $input = $filepath.'/'.$file;
2110: my $output = $filepath.'/'.'tn-'.$file;
2111: my $thumbsize = $thumbwidth.'x'.$thumbheight;
2112: system("convert -sample $thumbsize $input $output");
2113: if (-e $filepath.'/'.'tn-'.$file) {
2114: $fetchthumb = 1;
2115: }
2116: }
1.858 raeburn 2117:
1.259 www 2118: # Notify homeserver to grep it
2119: #
1.638 albertel 2120: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 2121: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 2122: if ($fetchresult eq 'ok') {
1.860 raeburn 2123: if ($fetchthumb) {
2124: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
2125: if ($thumbresult ne 'ok') {
2126: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
2127: $docuhome.': '.$thumbresult);
2128: }
2129: }
1.259 www 2130: #
1.258 www 2131: # Return the URL to it
1.494 albertel 2132: return '/uploaded/'.$path.$file;
1.263 www 2133: } else {
1.494 albertel 2134: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
2135: ': '.$fetchresult);
1.263 www 2136: return '/adm/notfound.html';
1.858 raeburn 2137: }
1.493 albertel 2138: }
2139:
1.637 raeburn 2140: sub extract_embedded_items {
1.961 raeburn 2141: my ($fullpath,$allfiles,$codebase,$content) = @_;
1.637 raeburn 2142: my @state = ();
2143: my %javafiles = (
2144: codebase => '',
2145: code => '',
2146: archive => ''
2147: );
2148: my %mediafiles = (
2149: src => '',
2150: movie => '',
2151: );
1.648 raeburn 2152: my $p;
2153: if ($content) {
2154: $p = HTML::LCParser->new($content);
2155: } else {
1.961 raeburn 2156: $p = HTML::LCParser->new($fullpath);
1.648 raeburn 2157: }
1.641 albertel 2158: while (my $t=$p->get_token()) {
1.640 albertel 2159: if ($t->[0] eq 'S') {
2160: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 2161: push(@state, $tagname);
1.648 raeburn 2162: if (lc($tagname) eq 'allow') {
2163: &add_filetype($allfiles,$attr->{'src'},'src');
2164: }
1.640 albertel 2165: if (lc($tagname) eq 'img') {
2166: &add_filetype($allfiles,$attr->{'src'},'src');
2167: }
1.886 albertel 2168: if (lc($tagname) eq 'a') {
2169: &add_filetype($allfiles,$attr->{'href'},'href');
2170: }
1.645 raeburn 2171: if (lc($tagname) eq 'script') {
2172: if ($attr->{'archive'} =~ /\.jar$/i) {
2173: &add_filetype($allfiles,$attr->{'archive'},'archive');
2174: } else {
2175: &add_filetype($allfiles,$attr->{'src'},'src');
2176: }
2177: }
2178: if (lc($tagname) eq 'link') {
2179: if (lc($attr->{'rel'}) eq 'stylesheet') {
2180: &add_filetype($allfiles,$attr->{'href'},'href');
2181: }
2182: }
1.640 albertel 2183: if (lc($tagname) eq 'object' ||
2184: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
2185: foreach my $item (keys(%javafiles)) {
2186: $javafiles{$item} = '';
2187: }
2188: }
2189: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
2190: my $name = lc($attr->{'name'});
2191: foreach my $item (keys(%javafiles)) {
2192: if ($name eq $item) {
2193: $javafiles{$item} = $attr->{'value'};
2194: last;
2195: }
2196: }
2197: foreach my $item (keys(%mediafiles)) {
2198: if ($name eq $item) {
2199: &add_filetype($allfiles, $attr->{'value'}, 'value');
2200: last;
2201: }
2202: }
2203: }
2204: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
2205: foreach my $item (keys(%javafiles)) {
2206: if ($attr->{$item}) {
2207: $javafiles{$item} = $attr->{$item};
2208: last;
2209: }
2210: }
2211: foreach my $item (keys(%mediafiles)) {
2212: if ($attr->{$item}) {
2213: &add_filetype($allfiles,$attr->{$item},$item);
2214: last;
2215: }
2216: }
2217: }
2218: } elsif ($t->[0] eq 'E') {
2219: my ($tagname) = ($t->[1]);
2220: if ($javafiles{'codebase'} ne '') {
2221: $javafiles{'codebase'} .= '/';
2222: }
2223: if (lc($tagname) eq 'applet' ||
2224: lc($tagname) eq 'object' ||
2225: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
2226: ) {
2227: foreach my $item (keys(%javafiles)) {
2228: if ($item ne 'codebase' && $javafiles{$item} ne '') {
2229: my $file=$javafiles{'codebase'}.$javafiles{$item};
2230: &add_filetype($allfiles,$file,$item);
2231: }
2232: }
2233: }
2234: pop @state;
2235: }
2236: }
1.637 raeburn 2237: return 'ok';
2238: }
2239:
1.639 albertel 2240: sub add_filetype {
2241: my ($allfiles,$file,$type)=@_;
2242: if (exists($allfiles->{$file})) {
2243: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
2244: push(@{$allfiles->{$file}}, &escape($type));
2245: }
2246: } else {
2247: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 2248: }
2249: }
2250:
1.493 albertel 2251: sub removeuploadedurl {
2252: my ($url)=@_;
2253: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 2254: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 2255: }
2256:
2257: sub removeuserfile {
2258: my ($docuname,$docudom,$fname)=@_;
2259: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2260: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
2261: if ($result eq 'ok') {
2262: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
2263: my $metafile = $fname.'.meta';
2264: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 2265: my $url = "/uploaded/$docudom/$docuname/$fname";
2266: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2267: my $sqlresult =
1.823 albertel 2268: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2269: 'portfolio_metadata',$group,
2270: 'delete');
1.798 raeburn 2271: }
2272: }
2273: return $result;
1.257 www 2274: }
1.15 www 2275:
1.530 albertel 2276: sub mkdiruserfile {
2277: my ($docuname,$docudom,$dir)=@_;
2278: my $home=&homeserver($docuname,$docudom);
2279: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2280: }
2281:
1.531 albertel 2282: sub renameuserfile {
2283: my ($docuname,$docudom,$old,$new)=@_;
2284: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2285: my $result = &reply("renameuserfile:$docudom:$docuname:".
2286: &escape("$old").':'.&escape("$new"),$home);
2287: if ($result eq 'ok') {
2288: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2289: my $oldmeta = $old.'.meta';
2290: my $newmeta = $new.'.meta';
2291: my $metaresult =
2292: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2293: my $url = "/uploaded/$docudom/$docuname/$old";
2294: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2295: my $sqlresult =
1.823 albertel 2296: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2297: 'portfolio_metadata',$group,
2298: 'delete');
1.798 raeburn 2299: }
2300: }
2301: return $result;
1.531 albertel 2302: }
2303:
1.14 www 2304: # ------------------------------------------------------------------------- Log
2305:
2306: sub log {
2307: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2308: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2309: }
2310:
2311: # ------------------------------------------------------------------ Course Log
1.352 www 2312: #
2313: # This routine flushes several buffers of non-mission-critical nature
2314: #
1.157 www 2315:
2316: sub flushcourselogs {
1.352 www 2317: &logthis('Flushing log buffers');
2318: #
2319: # course logs
2320: # This is a log of all transactions in a course, which can be used
2321: # for data mining purposes
2322: #
2323: # It also collects the courseid database, which lists last transaction
2324: # times and course titles for all courseids
2325: #
2326: my %courseidbuffer=();
1.921 raeburn 2327: foreach my $crsid (keys(%courselogs)) {
1.352 www 2328: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2329: &escape($courselogs{$crsid}),
2330: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2331: delete $courselogs{$crsid};
2332: } else {
2333: &logthis('Failed to flush log buffer for '.$crsid);
2334: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2335: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2336: " exceeded maximum size, deleting.</font>");
2337: delete $courselogs{$crsid};
2338: }
1.352 www 2339: }
1.920 raeburn 2340: $courseidbuffer{$coursehombuf{$crsid}}{$crsid} = {
1.936 raeburn 2341: 'description' => $coursedescrbuf{$crsid},
2342: 'inst_code' => $courseinstcodebuf{$crsid},
2343: 'type' => $coursetypebuf{$crsid},
2344: 'owner' => $courseownerbuf{$crsid},
1.920 raeburn 2345: };
1.191 harris41 2346: }
1.352 www 2347: #
2348: # Write course id database (reverse lookup) to homeserver of courses
2349: # Is used in pickcourse
2350: #
1.840 albertel 2351: foreach my $crs_home (keys(%courseidbuffer)) {
1.918 raeburn 2352: my $response = &courseidput(&host_domain($crs_home),
1.921 raeburn 2353: $courseidbuffer{$crs_home},
2354: $crs_home,'timeonly');
1.352 www 2355: }
2356: #
2357: # File accesses
2358: # Writes to the dynamic metadata of resources to get hit counts, etc.
2359: #
1.449 matthew 2360: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2361: if ($entry =~ /___count$/) {
2362: my ($dom,$name);
1.807 albertel 2363: ($dom,$name,undef)=
1.811 albertel 2364: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2365: if (! defined($dom) || $dom eq '' ||
2366: ! defined($name) || $name eq '') {
1.620 albertel 2367: my $cid = $env{'request.course.id'};
2368: $dom = $env{'request.'.$cid.'.domain'};
2369: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2370: }
1.450 matthew 2371: my $value = $accesshash{$entry};
2372: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2373: my %temphash=($url => $value);
1.449 matthew 2374: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2375: if ($result eq 'ok') {
2376: delete $accesshash{$entry};
2377: } elsif ($result eq 'unknown_cmd') {
2378: # Target server has old code running on it.
1.450 matthew 2379: my %temphash=($entry => $value);
1.449 matthew 2380: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2381: delete $accesshash{$entry};
2382: }
2383: }
2384: } else {
1.811 albertel 2385: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2386: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2387: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2388: delete $accesshash{$entry};
2389: }
1.185 www 2390: }
1.191 harris41 2391: }
1.352 www 2392: #
2393: # Roles
2394: # Reverse lookup of user roles for course faculty/staff and co-authorship
2395: #
1.800 albertel 2396: foreach my $entry (keys(%userrolehash)) {
1.351 www 2397: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2398: split(/\:/,$entry);
2399: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2400: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2401: $rudom,$runame) eq 'ok') {
2402: delete $userrolehash{$entry};
2403: }
2404: }
1.662 raeburn 2405: #
2406: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2407: #
2408: my %domrolebuffer = ();
2409: foreach my $entry (keys %domainrolehash) {
1.901 albertel 2410: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2411: if ($domrolebuffer{$rudom}) {
2412: $domrolebuffer{$rudom}.='&'.&escape($entry).
2413: '='.&escape($domainrolehash{$entry});
2414: } else {
2415: $domrolebuffer{$rudom}.=&escape($entry).
2416: '='.&escape($domainrolehash{$entry});
2417: }
2418: delete $domainrolehash{$entry};
2419: }
2420: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2421: my %servers = &get_servers($dom,'library');
2422: foreach my $tryserver (keys(%servers)) {
2423: unless (&reply('domroleput:'.$dom.':'.
2424: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2425: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2426: }
1.662 raeburn 2427: }
2428: }
1.186 www 2429: $dumpcount++;
1.157 www 2430: }
2431:
2432: sub courselog {
2433: my $what=shift;
1.158 www 2434: $what=time.':'.$what;
1.620 albertel 2435: unless ($env{'request.course.id'}) { return ''; }
2436: $coursedombuf{$env{'request.course.id'}}=
2437: $env{'course.'.$env{'request.course.id'}.'.domain'};
2438: $coursenumbuf{$env{'request.course.id'}}=
2439: $env{'course.'.$env{'request.course.id'}.'.num'};
2440: $coursehombuf{$env{'request.course.id'}}=
2441: $env{'course.'.$env{'request.course.id'}.'.home'};
2442: $coursedescrbuf{$env{'request.course.id'}}=
2443: $env{'course.'.$env{'request.course.id'}.'.description'};
2444: $courseinstcodebuf{$env{'request.course.id'}}=
2445: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2446: $courseownerbuf{$env{'request.course.id'}}=
2447: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2448: $coursetypebuf{$env{'request.course.id'}}=
2449: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2450: if (defined $courselogs{$env{'request.course.id'}}) {
2451: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2452: } else {
1.620 albertel 2453: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2454: }
1.620 albertel 2455: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2456: &flushcourselogs();
2457: }
1.158 www 2458: }
2459:
2460: sub courseacclog {
2461: my $fnsymb=shift;
1.620 albertel 2462: unless ($env{'request.course.id'}) { return ''; }
2463: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2464: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2465: $what.=':POST';
1.583 matthew 2466: # FIXME: Probably ought to escape things....
1.800 albertel 2467: foreach my $key (keys(%env)) {
2468: if ($key=~/^form\.(.*)/) {
2469: $what.=':'.$1.'='.$env{$key};
1.158 www 2470: }
1.191 harris41 2471: }
1.583 matthew 2472: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2473: # FIXME: We should not be depending on a form parameter that someone
2474: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2475: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2476: $what.= ':POST';
2477: # FIXME: Probably ought to escape things....
2478: foreach my $element ('courseexp','crsfulltext','crsrelated',
2479: 'crsdiscuss') {
1.620 albertel 2480: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2481: }
2482: }
1.158 www 2483: }
2484: &courselog($what);
1.149 www 2485: }
2486:
1.185 www 2487: sub countacc {
2488: my $url=&declutter(shift);
1.458 matthew 2489: return if (! defined($url) || $url eq '');
1.620 albertel 2490: unless ($env{'request.course.id'}) { return ''; }
2491: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2492: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2493: $accesshash{$key}++;
1.185 www 2494: }
1.349 www 2495:
1.361 www 2496: sub linklog {
2497: my ($from,$to)=@_;
2498: $from=&declutter($from);
2499: $to=&declutter($to);
2500: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2501: $accesshash{$to.'___'.$from.'___goto'}=1;
2502: }
2503:
1.349 www 2504: sub userrolelog {
2505: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2506: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2507: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2508: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2509: ($trole=~/^ta/)) {
1.350 www 2510: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2511: $userrolehash
2512: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2513: =$tend.':'.$tstart;
1.662 raeburn 2514: }
1.898 albertel 2515: if (($env{'request.role'} =~ /dc\./) &&
2516: (($trole=~/^au/) || ($trole=~/^in/) ||
2517: ($trole=~/^cc/) || ($trole=~/^ep/) ||
2518: ($trole=~/^cr/) || ($trole=~/^ta/))) {
2519: $userrolehash
2520: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2521: =$tend.':'.$tstart;
2522: }
1.662 raeburn 2523: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2524: ($trole=~/^li/) || ($trole=~/^li/) ||
2525: ($trole=~/^au/) || ($trole=~/^dg/) ||
2526: ($trole=~/^sc/)) {
2527: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2528: $domainrolehash
2529: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2530: = $tend.':'.$tstart;
2531: }
1.351 www 2532: }
2533:
1.957 raeburn 2534: sub courserolelog {
2535: my ($trole,$username,$domain,$area,$tstart,$tend,$delflag,$selfenroll,$context)=@_;
2536: if (($trole eq 'cc') || ($trole eq 'in') ||
2537: ($trole eq 'ep') || ($trole eq 'ad') ||
2538: ($trole eq 'ta') || ($trole eq 'st') ||
2539: ($trole=~/^cr/) || ($trole eq 'gr')) {
2540: if ($area =~ m-^/($match_domain)/($match_courseid)/?([^/]*)-) {
2541: my $cdom = $1;
2542: my $cnum = $2;
2543: my $sec = $3;
2544: my $namespace = 'rolelog';
2545: my %storehash = (
2546: role => $trole,
2547: start => $tstart,
2548: end => $tend,
2549: selfenroll => $selfenroll,
2550: context => $context,
2551: );
2552: if ($trole eq 'gr') {
2553: $namespace = 'groupslog';
2554: $storehash{'group'} = $sec;
2555: } else {
2556: $storehash{'section'} = $sec;
2557: }
2558: &instructor_log($namespace,\%storehash,$delflag,$username,$domain,$cnum,$cdom);
2559: }
2560: }
2561: return;
2562: }
2563:
1.351 www 2564: sub get_course_adv_roles {
1.948 raeburn 2565: my ($cid,$codes) = @_;
1.620 albertel 2566: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2567: my %coursehash=&coursedescription($cid);
1.470 www 2568: my %nothide=();
1.800 albertel 2569: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1.937 raeburn 2570: if ($user !~ /:/) {
2571: $nothide{join(':',split(/[\@]/,$user))}=1;
2572: } else {
2573: $nothide{$user}=1;
2574: }
1.470 www 2575: }
1.351 www 2576: my %returnhash=();
2577: my %dumphash=
2578: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2579: my $now=time;
1.800 albertel 2580: foreach my $entry (keys %dumphash) {
2581: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2582: if (($tstart) && ($tstart<0)) { next; }
2583: if (($tend) && ($tend<$now)) { next; }
2584: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2585: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2586: if ($username eq '' || $domain eq '') { next; }
1.470 www 2587: if ((&privileged($username,$domain)) &&
2588: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2589: if ($role eq 'cr') { next; }
1.948 raeburn 2590: if ($codes) {
2591: if ($section) { $role .= ':'.$section; }
2592: if ($returnhash{$role}) {
2593: $returnhash{$role}.=','.$username.':'.$domain;
2594: } else {
2595: $returnhash{$role}=$username.':'.$domain;
2596: }
1.351 www 2597: } else {
1.948 raeburn 2598: my $key=&plaintext($role);
2599: if ($section) { $key.=' (Section '.$section.')'; }
2600: if ($returnhash{$key}) {
2601: $returnhash{$key}.=','.$username.':'.$domain;
2602: } else {
2603: $returnhash{$key}=$username.':'.$domain;
2604: }
1.351 www 2605: }
1.948 raeburn 2606: }
1.400 www 2607: return %returnhash;
2608: }
2609:
2610: sub get_my_roles {
1.937 raeburn 2611: my ($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv)=@_;
1.620 albertel 2612: unless (defined($uname)) { $uname=$env{'user.name'}; }
2613: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.937 raeburn 2614: my (%dumphash,%nothide);
1.858 raeburn 2615: if ($context eq 'userroles') {
2616: %dumphash = &dump('roles',$udom,$uname);
2617: } else {
2618: %dumphash=
1.400 www 2619: &dump('nohist_userroles',$udom,$uname);
1.937 raeburn 2620: if ($hidepriv) {
2621: my %coursehash=&coursedescription($udom.'_'.$uname);
2622: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2623: if ($user !~ /:/) {
2624: $nothide{join(':',split(/[\@]/,$user))} = 1;
2625: } else {
2626: $nothide{$user} = 1;
2627: }
2628: }
2629: }
1.858 raeburn 2630: }
1.400 www 2631: my %returnhash=();
2632: my $now=time;
1.800 albertel 2633: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2634: my ($role,$tend,$tstart);
2635: if ($context eq 'userroles') {
2636: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2637: } else {
2638: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2639: }
1.400 www 2640: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2641: my $status = 'active';
1.939 raeburn 2642: if (($tend) && ($tend<=$now)) {
1.832 raeburn 2643: $status = 'previous';
2644: }
2645: if (($tstart) && ($now<$tstart)) {
2646: $status = 'future';
2647: }
2648: if (ref($types) eq 'ARRAY') {
2649: if (!grep(/^\Q$status\E$/,@{$types})) {
2650: next;
2651: }
2652: } else {
2653: if ($status ne 'active') {
2654: next;
2655: }
2656: }
1.867 raeburn 2657: my ($rolecode,$username,$domain,$section,$area);
2658: if ($context eq 'userroles') {
2659: ($area,$rolecode) = split(/_/,$entry);
2660: (undef,$domain,$username,$section) = split(/\//,$area);
2661: } else {
2662: ($role,$username,$domain,$section) = split(/\:/,$entry);
2663: }
1.832 raeburn 2664: if (ref($roledoms) eq 'ARRAY') {
2665: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2666: next;
2667: }
2668: }
2669: if (ref($roles) eq 'ARRAY') {
2670: if (!grep(/^\Q$role\E$/,@{$roles})) {
1.922 raeburn 2671: if ($role =~ /^cr\//) {
2672: if (!grep(/^cr$/,@{$roles})) {
2673: next;
2674: }
2675: } else {
2676: next;
2677: }
1.832 raeburn 2678: }
1.867 raeburn 2679: }
1.937 raeburn 2680: if ($hidepriv) {
2681: if ((&privileged($username,$domain)) &&
2682: (!$nothide{$username.':'.$domain})) {
2683: next;
2684: }
2685: }
1.933 raeburn 2686: if ($withsec) {
2687: $returnhash{$username.':'.$domain.':'.$role.':'.$section} =
2688: $tstart.':'.$tend;
2689: } else {
2690: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
2691: }
1.832 raeburn 2692: }
1.373 www 2693: return %returnhash;
1.399 www 2694: }
2695:
2696: # ----------------------------------------------------- Frontpage Announcements
2697: #
2698: #
2699:
2700: sub postannounce {
2701: my ($server,$text)=@_;
1.844 albertel 2702: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 2703: unless ($text=~/\w/) { $text=''; }
2704: return &reply('setannounce:'.&escape($text),$server);
2705: }
2706:
2707: sub getannounce {
1.448 albertel 2708:
2709: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 2710: my $announcement='';
1.800 albertel 2711: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 2712: close($fh);
1.399 www 2713: if ($announcement=~/\w/) {
2714: return
2715: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 2716: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 2717: } else {
2718: return '';
2719: }
2720: } else {
2721: return '';
2722: }
1.351 www 2723: }
1.353 www 2724:
2725: # ---------------------------------------------------------- Course ID routines
2726: # Deal with domain's nohist_courseid.db files
2727: #
2728:
2729: sub courseidput {
1.921 raeburn 2730: my ($domain,$storehash,$coursehome,$caller) = @_;
2731: my $outcome;
2732: if ($caller eq 'timeonly') {
2733: my $cids = '';
2734: foreach my $item (keys(%$storehash)) {
2735: $cids.=&escape($item).'&';
2736: }
2737: $cids=~s/\&$//;
2738: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$cids,
2739: $coursehome);
2740: } else {
2741: my $items = '';
2742: foreach my $item (keys(%$storehash)) {
2743: $items.= &escape($item).'='.
2744: &freeze_escape($$storehash{$item}).'&';
2745: }
2746: $items=~s/\&$//;
2747: $outcome = &reply('courseidputhash:'.$domain.':'.$caller.':'.$items,
2748: $coursehome);
1.918 raeburn 2749: }
2750: if ($outcome eq 'unknown_cmd') {
2751: my $what;
2752: foreach my $cid (keys(%$storehash)) {
2753: $what .= &escape($cid).'=';
1.921 raeburn 2754: foreach my $item ('description','inst_code','owner','type') {
1.936 raeburn 2755: $what .= &escape($storehash->{$cid}{$item}).':';
1.918 raeburn 2756: }
2757: $what =~ s/\:$/&/;
2758: }
2759: $what =~ s/\&$//;
2760: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
2761: } else {
2762: return $outcome;
2763: }
1.353 www 2764: }
2765:
2766: sub courseiddump {
1.921 raeburn 2767: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
1.947 raeburn 2768: $coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
1.962 raeburn 2769: $selfenrollonly,$catfilter,$showhidden,$caller)=@_;
1.918 raeburn 2770: my $as_hash = 1;
2771: my %returnhash;
2772: if (!$domfilter) { $domfilter=''; }
1.845 albertel 2773: my %libserv = &all_library();
2774: foreach my $tryserver (keys(%libserv)) {
2775: if ( ( $hostidflag == 1
2776: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
2777: || (!defined($hostidflag)) ) {
2778:
1.918 raeburn 2779: if (($domfilter eq '') ||
2780: (&host_domain($tryserver) eq $domfilter)) {
2781: my $rep =
2782: &reply('courseiddump:'.&host_domain($tryserver).':'.
2783: $sincefilter.':'.&escape($descfilter).':'.
2784: &escape($instcodefilter).':'.&escape($ownerfilter).
2785: ':'.&escape($coursefilter).':'.&escape($typefilter).
1.947 raeburn 2786: ':'.&escape($regexp_ok).':'.$as_hash.':'.
1.962 raeburn 2787: &escape($selfenrollonly).':'.&escape($catfilter).':'.
2788: $showhidden.':'.$caller,$tryserver);
1.918 raeburn 2789: my @pairs=split(/\&/,$rep);
2790: foreach my $item (@pairs) {
2791: my ($key,$value)=split(/\=/,$item,2);
2792: $key = &unescape($key);
2793: next if ($key =~ /^error: 2 /);
2794: my $result = &thaw_unescape($value);
2795: if (ref($result) eq 'HASH') {
2796: $returnhash{$key}=$result;
2797: } else {
1.921 raeburn 2798: my @responses = split(/:/,$value);
2799: my @items = ('description','inst_code','owner','type');
1.918 raeburn 2800: for (my $i=0; $i<@responses; $i++) {
1.921 raeburn 2801: $returnhash{$key}{$items[$i]} = &unescape($responses[$i]);
1.918 raeburn 2802: }
2803: }
1.353 www 2804: }
2805: }
2806: }
2807: }
2808: return %returnhash;
2809: }
2810:
1.658 raeburn 2811: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 2812:
2813: sub dcmailput {
1.685 raeburn 2814: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 2815: my $status = &Apache::lonnet::critical(
1.740 www 2816: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
2817: &escape($message),$server);
1.662 raeburn 2818: return $status;
2819: }
2820:
1.658 raeburn 2821: sub dcmaildump {
2822: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 2823: my %returnhash=();
1.846 albertel 2824:
2825: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 2826: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
2827: &escape($enddate).':';
2828: my @esc_senders=map { &escape($_)} @$senders;
2829: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 2830: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 2831: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 2832: if (($key) && ($value)) {
2833: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 2834: }
2835: }
2836: }
2837: return %returnhash;
2838: }
1.662 raeburn 2839: # ---------------------------------------------------------- Domain roles
2840:
2841: sub get_domain_roles {
2842: my ($dom,$roles,$startdate,$enddate)=@_;
2843: if (undef($startdate) || $startdate eq '') {
2844: $startdate = '.';
2845: }
2846: if (undef($enddate) || $enddate eq '') {
2847: $enddate = '.';
2848: }
1.922 raeburn 2849: my $rolelist;
2850: if (ref($roles) eq 'ARRAY') {
2851: $rolelist = join(':',@{$roles});
2852: }
1.662 raeburn 2853: my %personnel = ();
1.841 albertel 2854:
2855: my %servers = &get_servers($dom,'library');
2856: foreach my $tryserver (keys(%servers)) {
2857: %{$personnel{$tryserver}}=();
2858: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
2859: &escape($startdate).':'.
2860: &escape($enddate).':'.
2861: &escape($rolelist), $tryserver))) {
2862: my ($key,$value) = split(/\=/,$line,2);
2863: if (($key) && ($value)) {
2864: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
2865: }
2866: }
1.662 raeburn 2867: }
2868: return %personnel;
2869: }
1.658 raeburn 2870:
1.149 www 2871: # ----------------------------------------------------------- Check out an item
2872:
1.504 albertel 2873: sub get_first_access {
2874: my ($type,$argsymb)=@_;
1.790 albertel 2875: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2876: if ($argsymb) { $symb=$argsymb; }
2877: my ($map,$id,$res)=&decode_symb($symb);
1.926 albertel 2878: if ($type eq 'course') {
2879: $res='course';
2880: } elsif ($type eq 'map') {
1.588 albertel 2881: $res=&symbread($map);
2882: } else {
2883: $res=$symb;
2884: }
2885: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
2886: return $times{"$courseid\0$res"};
1.504 albertel 2887: }
2888:
2889: sub set_first_access {
2890: my ($type)=@_;
1.790 albertel 2891: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2892: my ($map,$id,$res)=&decode_symb($symb);
1.928 albertel 2893: if ($type eq 'course') {
2894: $res='course';
2895: } elsif ($type eq 'map') {
1.588 albertel 2896: $res=&symbread($map);
2897: } else {
2898: $res=$symb;
2899: }
2900: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 2901: if (!$firstaccess) {
1.588 albertel 2902: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 2903: }
2904: return 'already_set';
1.504 albertel 2905: }
2906:
1.149 www 2907: sub checkout {
2908: my ($symb,$tuname,$tudom,$tcrsid)=@_;
2909: my $now=time;
2910: my $lonhost=$perlvar{'lonHostID'};
2911: my $infostr=&escape(
1.234 www 2912: 'CHECKOUTTOKEN&'.
1.149 www 2913: $tuname.'&'.
2914: $tudom.'&'.
2915: $tcrsid.'&'.
2916: $symb.'&'.
2917: $now.'&'.$ENV{'REMOTE_ADDR'});
2918: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 2919: if ($token=~/^error\:/) {
1.672 albertel 2920: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2921: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
2922: "</font>");
2923: return '';
2924: }
2925:
1.149 www 2926: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
2927: $token=~tr/a-z/A-Z/;
2928:
1.153 www 2929: my %infohash=('resource.0.outtoken' => $token,
2930: 'resource.0.checkouttime' => $now,
2931: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 2932:
2933: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2934: return '';
1.151 www 2935: } else {
1.672 albertel 2936: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2937: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
2938: "</font>");
1.149 www 2939: }
2940:
2941: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2942: &escape('Checkout '.$infostr.' - '.
2943: $token)) ne 'ok') {
2944: return '';
1.151 www 2945: } else {
1.672 albertel 2946: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2947: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
2948: "</font>");
1.149 www 2949: }
1.151 www 2950: return $token;
1.149 www 2951: }
2952:
2953: # ------------------------------------------------------------ Check in an item
2954:
2955: sub checkin {
2956: my $token=shift;
1.150 www 2957: my $now=time;
2958: my ($ta,$tb,$lonhost)=split(/\*/,$token);
2959: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 2960: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 2961: $dtoken=~s/\W/\_/g;
1.234 www 2962: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 2963: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
2964:
1.154 www 2965: unless (($tuname) && ($tudom)) {
2966: &logthis('Check in '.$token.' ('.$dtoken.') failed');
2967: return '';
2968: }
2969:
2970: unless (&allowed('mgr',$tcrsid)) {
2971: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 2972: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 2973: return '';
2974: }
2975:
1.153 www 2976: my %infohash=('resource.0.intoken' => $token,
2977: 'resource.0.checkintime' => $now,
2978: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 2979:
2980: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2981: return '';
2982: }
2983:
2984: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2985: &escape('Checkin - '.$token)) ne 'ok') {
2986: return '';
2987: }
2988:
2989: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 2990: }
2991:
2992: # --------------------------------------------- Set Expire Date for Spreadsheet
2993:
2994: sub expirespread {
2995: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 2996: my $cid=$env{'request.course.id'};
1.110 www 2997: if ($cid) {
2998: my $now=time;
2999: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 3000: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
3001: $env{'course.'.$cid.'.num'}.
1.110 www 3002: ':nohist_expirationdates:'.
3003: &escape($key).'='.$now,
1.620 albertel 3004: $env{'course.'.$cid.'.home'})
1.110 www 3005: }
3006: return 'ok';
1.14 www 3007: }
3008:
1.109 www 3009: # ----------------------------------------------------- Devalidate Spreadsheets
3010:
3011: sub devalidate {
1.325 www 3012: my ($symb,$uname,$udom)=@_;
1.620 albertel 3013: my $cid=$env{'request.course.id'};
1.109 www 3014: if ($cid) {
1.391 matthew 3015: # delete the stored spreadsheets for
3016: # - the student level sheet of this user in course's homespace
3017: # - the assessment level sheet for this resource
3018: # for this user in user's homespace
1.553 albertel 3019: # - current conditional state info
1.325 www 3020: my $key=$uname.':'.$udom.':';
1.109 www 3021: my $status=
1.299 matthew 3022: &del('nohist_calculatedsheets',
1.391 matthew 3023: [$key.'studentcalc:'],
1.620 albertel 3024: $env{'course.'.$cid.'.domain'},
3025: $env{'course.'.$cid.'.num'})
1.133 albertel 3026: .' '.
3027: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 3028: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 3029: unless ($status eq 'ok ok') {
3030: &logthis('Could not devalidate spreadsheet '.
1.325 www 3031: $uname.' at '.$udom.' for '.
1.109 www 3032: $symb.': '.$status);
1.133 albertel 3033: }
1.553 albertel 3034: &delenv('user.state.'.$cid);
1.109 www 3035: }
3036: }
3037:
1.265 albertel 3038: sub get_scalar {
3039: my ($string,$end) = @_;
3040: my $value;
3041: if ($$string =~ s/^([^&]*?)($end)/$2/) {
3042: $value = $1;
3043: } elsif ($$string =~ s/^([^&]*?)&//) {
3044: $value = $1;
3045: }
3046: return &unescape($value);
3047: }
3048:
3049: sub array2str {
3050: my (@array) = @_;
3051: my $result=&arrayref2str(\@array);
3052: $result=~s/^__ARRAY_REF__//;
3053: $result=~s/__END_ARRAY_REF__$//;
3054: return $result;
3055: }
3056:
1.204 albertel 3057: sub arrayref2str {
3058: my ($arrayref) = @_;
1.265 albertel 3059: my $result='__ARRAY_REF__';
1.204 albertel 3060: foreach my $elem (@$arrayref) {
1.265 albertel 3061: if(ref($elem) eq 'ARRAY') {
3062: $result.=&arrayref2str($elem).'&';
3063: } elsif(ref($elem) eq 'HASH') {
3064: $result.=&hashref2str($elem).'&';
3065: } elsif(ref($elem)) {
3066: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 3067: } else {
3068: $result.=&escape($elem).'&';
3069: }
3070: }
3071: $result=~s/\&$//;
1.265 albertel 3072: $result .= '__END_ARRAY_REF__';
1.204 albertel 3073: return $result;
3074: }
3075:
1.168 albertel 3076: sub hash2str {
1.204 albertel 3077: my (%hash) = @_;
3078: my $result=&hashref2str(\%hash);
1.265 albertel 3079: $result=~s/^__HASH_REF__//;
3080: $result=~s/__END_HASH_REF__$//;
1.204 albertel 3081: return $result;
3082: }
3083:
3084: sub hashref2str {
3085: my ($hashref)=@_;
1.265 albertel 3086: my $result='__HASH_REF__';
1.800 albertel 3087: foreach my $key (sort(keys(%$hashref))) {
3088: if (ref($key) eq 'ARRAY') {
3089: $result.=&arrayref2str($key).'=';
3090: } elsif (ref($key) eq 'HASH') {
3091: $result.=&hashref2str($key).'=';
3092: } elsif (ref($key)) {
1.265 albertel 3093: $result.='=';
1.800 albertel 3094: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 3095: } else {
1.800 albertel 3096: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 3097: }
3098:
1.800 albertel 3099: if(ref($hashref->{$key}) eq 'ARRAY') {
3100: $result.=&arrayref2str($hashref->{$key}).'&';
3101: } elsif(ref($hashref->{$key}) eq 'HASH') {
3102: $result.=&hashref2str($hashref->{$key}).'&';
3103: } elsif(ref($hashref->{$key})) {
1.265 albertel 3104: $result.='&';
1.800 albertel 3105: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 3106: } else {
1.800 albertel 3107: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 3108: }
3109: }
1.168 albertel 3110: $result=~s/\&$//;
1.265 albertel 3111: $result .= '__END_HASH_REF__';
1.168 albertel 3112: return $result;
3113: }
3114:
3115: sub str2hash {
1.265 albertel 3116: my ($string)=@_;
3117: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
3118: return %$hash;
3119: }
3120:
3121: sub str2hashref {
1.168 albertel 3122: my ($string) = @_;
1.265 albertel 3123:
3124: my %hash;
3125:
3126: if($string !~ /^__HASH_REF__/) {
3127: if (! ($string eq '' || !defined($string))) {
3128: $hash{'error'}='Not hash reference';
3129: }
3130: return (\%hash, $string);
3131: }
3132:
3133: $string =~ s/^__HASH_REF__//;
3134:
3135: while($string !~ /^__END_HASH_REF__/) {
3136: #key
3137: my $key='';
3138: if($string =~ /^__HASH_REF__/) {
3139: ($key, $string)=&str2hashref($string);
3140: if(defined($key->{'error'})) {
3141: $hash{'error'}='Bad data';
3142: return (\%hash, $string);
3143: }
3144: } elsif($string =~ /^__ARRAY_REF__/) {
3145: ($key, $string)=&str2arrayref($string);
3146: if($key->[0] eq 'Array reference error') {
3147: $hash{'error'}='Bad data';
3148: return (\%hash, $string);
3149: }
3150: } else {
3151: $string =~ s/^(.*?)=//;
1.267 albertel 3152: $key=&unescape($1);
1.265 albertel 3153: }
3154: $string =~ s/^=//;
3155:
3156: #value
3157: my $value='';
3158: if($string =~ /^__HASH_REF__/) {
3159: ($value, $string)=&str2hashref($string);
3160: if(defined($value->{'error'})) {
3161: $hash{'error'}='Bad data';
3162: return (\%hash, $string);
3163: }
3164: } elsif($string =~ /^__ARRAY_REF__/) {
3165: ($value, $string)=&str2arrayref($string);
3166: if($value->[0] eq 'Array reference error') {
3167: $hash{'error'}='Bad data';
3168: return (\%hash, $string);
3169: }
3170: } else {
3171: $value=&get_scalar(\$string,'__END_HASH_REF__');
3172: }
3173: $string =~ s/^&//;
3174:
3175: $hash{$key}=$value;
1.204 albertel 3176: }
1.265 albertel 3177:
3178: $string =~ s/^__END_HASH_REF__//;
3179:
3180: return (\%hash, $string);
1.204 albertel 3181: }
3182:
3183: sub str2array {
1.265 albertel 3184: my ($string)=@_;
3185: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
3186: return @$array;
3187: }
3188:
3189: sub str2arrayref {
1.204 albertel 3190: my ($string) = @_;
1.265 albertel 3191: my @array;
3192:
3193: if($string !~ /^__ARRAY_REF__/) {
3194: if (! ($string eq '' || !defined($string))) {
3195: $array[0]='Array reference error';
3196: }
3197: return (\@array, $string);
3198: }
3199:
3200: $string =~ s/^__ARRAY_REF__//;
3201:
3202: while($string !~ /^__END_ARRAY_REF__/) {
3203: my $value='';
3204: if($string =~ /^__HASH_REF__/) {
3205: ($value, $string)=&str2hashref($string);
3206: if(defined($value->{'error'})) {
3207: $array[0] ='Array reference error';
3208: return (\@array, $string);
3209: }
3210: } elsif($string =~ /^__ARRAY_REF__/) {
3211: ($value, $string)=&str2arrayref($string);
3212: if($value->[0] eq 'Array reference error') {
3213: $array[0] ='Array reference error';
3214: return (\@array, $string);
3215: }
3216: } else {
3217: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
3218: }
3219: $string =~ s/^&//;
3220:
3221: push(@array, $value);
1.191 harris41 3222: }
1.265 albertel 3223:
3224: $string =~ s/^__END_ARRAY_REF__//;
3225:
3226: return (\@array, $string);
1.168 albertel 3227: }
3228:
1.167 albertel 3229: # -------------------------------------------------------------------Temp Store
3230:
1.168 albertel 3231: sub tmpreset {
3232: my ($symb,$namespace,$domain,$stuname) = @_;
3233: if (!$symb) {
3234: $symb=&symbread();
1.620 albertel 3235: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3236: }
3237: $symb=escape($symb);
3238:
1.620 albertel 3239: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 3240: $namespace=~s/\//\_/g;
3241: $namespace=~s/\W//g;
3242:
1.620 albertel 3243: if (!$domain) { $domain=$env{'user.domain'}; }
3244: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3245: if ($domain eq 'public' && $stuname eq 'public') {
3246: $stuname=$ENV{'REMOTE_ADDR'};
3247: }
1.168 albertel 3248: my $path=$perlvar{'lonDaemons'}.'/tmp';
3249: my %hash;
3250: if (tie(%hash,'GDBM_File',
3251: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3252: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3253: foreach my $key (keys %hash) {
1.180 albertel 3254: if ($key=~ /:$symb/) {
1.168 albertel 3255: delete($hash{$key});
3256: }
3257: }
3258: }
3259: }
3260:
1.167 albertel 3261: sub tmpstore {
1.168 albertel 3262: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3263:
3264: if (!$symb) {
3265: $symb=&symbread();
1.620 albertel 3266: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3267: }
3268: $symb=escape($symb);
3269:
3270: if (!$namespace) {
3271: # I don't think we would ever want to store this for a course.
3272: # it seems this will only be used if we don't have a course.
1.620 albertel 3273: #$namespace=$env{'request.course.id'};
1.168 albertel 3274: #if (!$namespace) {
1.620 albertel 3275: $namespace=$env{'request.state'};
1.168 albertel 3276: #}
3277: }
3278: $namespace=~s/\//\_/g;
3279: $namespace=~s/\W//g;
1.620 albertel 3280: if (!$domain) { $domain=$env{'user.domain'}; }
3281: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3282: if ($domain eq 'public' && $stuname eq 'public') {
3283: $stuname=$ENV{'REMOTE_ADDR'};
3284: }
1.168 albertel 3285: my $now=time;
3286: my %hash;
3287: my $path=$perlvar{'lonDaemons'}.'/tmp';
3288: if (tie(%hash,'GDBM_File',
3289: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3290: &GDBM_WRCREAT(),0640)) {
1.168 albertel 3291: $hash{"version:$symb"}++;
3292: my $version=$hash{"version:$symb"};
3293: my $allkeys='';
3294: foreach my $key (keys(%$storehash)) {
3295: $allkeys.=$key.':';
1.591 albertel 3296: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 3297: }
3298: $hash{"$version:$symb:timestamp"}=$now;
3299: $allkeys.='timestamp';
3300: $hash{"$version:keys:$symb"}=$allkeys;
3301: if (untie(%hash)) {
3302: return 'ok';
3303: } else {
3304: return "error:$!";
3305: }
3306: } else {
3307: return "error:$!";
3308: }
3309: }
1.167 albertel 3310:
1.168 albertel 3311: # -----------------------------------------------------------------Temp Restore
1.167 albertel 3312:
1.168 albertel 3313: sub tmprestore {
3314: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 3315:
1.168 albertel 3316: if (!$symb) {
3317: $symb=&symbread();
1.620 albertel 3318: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 3319: }
3320: $symb=escape($symb);
3321:
1.620 albertel 3322: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 3323:
1.620 albertel 3324: if (!$domain) { $domain=$env{'user.domain'}; }
3325: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 3326: if ($domain eq 'public' && $stuname eq 'public') {
3327: $stuname=$ENV{'REMOTE_ADDR'};
3328: }
1.168 albertel 3329: my %returnhash;
3330: $namespace=~s/\//\_/g;
3331: $namespace=~s/\W//g;
3332: my %hash;
3333: my $path=$perlvar{'lonDaemons'}.'/tmp';
3334: if (tie(%hash,'GDBM_File',
3335: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 3336: &GDBM_READER(),0640)) {
1.168 albertel 3337: my $version=$hash{"version:$symb"};
3338: $returnhash{'version'}=$version;
3339: my $scope;
3340: for ($scope=1;$scope<=$version;$scope++) {
3341: my $vkeys=$hash{"$scope:keys:$symb"};
3342: my @keys=split(/:/,$vkeys);
3343: my $key;
3344: $returnhash{"$scope:keys"}=$vkeys;
3345: foreach $key (@keys) {
1.591 albertel 3346: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
3347: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 3348: }
3349: }
1.168 albertel 3350: if (!(untie(%hash))) {
3351: return "error:$!";
3352: }
3353: } else {
3354: return "error:$!";
3355: }
3356: return %returnhash;
1.167 albertel 3357: }
3358:
1.9 www 3359: # ----------------------------------------------------------------------- Store
3360:
3361: sub store {
1.124 www 3362: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3363: my $home='';
3364:
1.168 albertel 3365: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3366:
1.213 www 3367: $symb=&symbclean($symb);
1.122 albertel 3368: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3369:
1.620 albertel 3370: if (!$domain) { $domain=$env{'user.domain'}; }
3371: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3372:
3373: &devalidate($symb,$stuname,$domain);
1.109 www 3374:
3375: $symb=escape($symb);
1.187 www 3376: if (!$namespace) {
1.620 albertel 3377: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3378: return '';
3379: }
3380: }
1.620 albertel 3381: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3382:
3383: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3384: $$storehash{'host'}=$perlvar{'lonHostID'};
3385:
1.12 www 3386: my $namevalue='';
1.800 albertel 3387: foreach my $key (keys(%$storehash)) {
3388: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3389: }
1.12 www 3390: $namevalue=~s/\&$//;
1.187 www 3391: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 3392: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 3393: }
3394:
1.47 www 3395: # -------------------------------------------------------------- Critical Store
3396:
3397: sub cstore {
1.124 www 3398: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
3399: my $home='';
3400:
1.168 albertel 3401: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3402:
1.213 www 3403: $symb=&symbclean($symb);
1.122 albertel 3404: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3405:
1.620 albertel 3406: if (!$domain) { $domain=$env{'user.domain'}; }
3407: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3408:
3409: &devalidate($symb,$stuname,$domain);
1.109 www 3410:
3411: $symb=escape($symb);
1.187 www 3412: if (!$namespace) {
1.620 albertel 3413: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3414: return '';
3415: }
3416: }
1.620 albertel 3417: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3418:
3419: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3420: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3421:
1.47 www 3422: my $namevalue='';
1.800 albertel 3423: foreach my $key (keys(%$storehash)) {
3424: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3425: }
1.47 www 3426: $namevalue=~s/\&$//;
1.187 www 3427: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3428: return critical
3429: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3430: }
3431:
1.9 www 3432: # --------------------------------------------------------------------- Restore
3433:
3434: sub restore {
1.124 www 3435: my ($symb,$namespace,$domain,$stuname) = @_;
3436: my $home='';
3437:
1.168 albertel 3438: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3439:
1.122 albertel 3440: if (!$symb) {
3441: unless ($symb=escape(&symbread())) { return ''; }
3442: } else {
1.213 www 3443: $symb=&escape(&symbclean($symb));
1.122 albertel 3444: }
1.188 www 3445: if (!$namespace) {
1.620 albertel 3446: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3447: return '';
3448: }
3449: }
1.620 albertel 3450: if (!$domain) { $domain=$env{'user.domain'}; }
3451: if (!$stuname) { $stuname=$env{'user.name'}; }
3452: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3453: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3454:
1.12 www 3455: my %returnhash=();
1.800 albertel 3456: foreach my $line (split(/\&/,$answer)) {
3457: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3458: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3459: }
1.75 www 3460: my $version;
3461: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3462: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3463: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3464: }
1.75 www 3465: }
1.13 www 3466: return %returnhash;
1.34 www 3467: }
3468:
3469: # ---------------------------------------------------------- Course Description
3470:
3471: sub coursedescription {
1.731 albertel 3472: my ($courseid,$args)=@_;
1.34 www 3473: $courseid=~s/^\///;
1.49 www 3474: $courseid=~s/\_/\//g;
1.34 www 3475: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3476: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3477: my $normalid=$cdomain.'_'.$cnum;
3478: # need to always cache even if we get errors otherwise we keep
3479: # trying and trying and trying to get the course description.
3480: my %envhash=();
3481: my %returnhash=();
1.731 albertel 3482:
3483: my $expiretime=600;
3484: if ($env{'request.course.id'} eq $normalid) {
3485: $expiretime=120;
3486: }
3487:
3488: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3489: if (!$args->{'freshen_cache'}
3490: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3491: foreach my $key (keys(%env)) {
3492: next if ($key !~ /^\Q$prefix\E(.*)/);
3493: my ($setting) = $1;
3494: $returnhash{$setting} = $env{$key};
3495: }
3496: return %returnhash;
3497: }
3498:
3499: # get the data agin
3500: if (!$args->{'one_time'}) {
3501: $envhash{'course.'.$normalid.'.last_cache'}=time;
3502: }
1.811 albertel 3503:
1.34 www 3504: if ($chome ne 'no_host') {
1.302 albertel 3505: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3506: if (!exists($returnhash{'con_lost'})) {
3507: $returnhash{'home'}= $chome;
3508: $returnhash{'domain'} = $cdomain;
3509: $returnhash{'num'} = $cnum;
1.741 raeburn 3510: if (!defined($returnhash{'type'})) {
3511: $returnhash{'type'} = 'Course';
3512: }
1.130 albertel 3513: while (my ($name,$value) = each %returnhash) {
1.53 www 3514: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3515: }
1.270 www 3516: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3517: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3518: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3519: $envhash{'course.'.$normalid.'.home'}=$chome;
3520: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3521: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3522: }
3523: }
1.731 albertel 3524: if (!$args->{'one_time'}) {
1.949 raeburn 3525: &appenv(\%envhash);
1.731 albertel 3526: }
1.302 albertel 3527: return %returnhash;
1.461 www 3528: }
3529:
3530: # -------------------------------------------------See if a user is privileged
3531:
3532: sub privileged {
3533: my ($username,$domain)=@_;
3534: my $rolesdump=&reply("dump:$domain:$username:roles",
3535: &homeserver($username,$domain));
3536: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
3537: my $now=time;
3538: if ($rolesdump ne '') {
1.800 albertel 3539: foreach my $entry (split(/&/,$rolesdump)) {
3540: if ($entry!~/^rolesdef_/) {
3541: my ($area,$role)=split(/=/,$entry);
1.461 www 3542: $area=~s/\_\w\w$//;
3543: my ($trole,$tend,$tstart)=split(/_/,$role);
3544: if (($trole eq 'dc') || ($trole eq 'su')) {
3545: my $active=1;
3546: if ($tend) {
3547: if ($tend<$now) { $active=0; }
3548: }
3549: if ($tstart) {
3550: if ($tstart>$now) { $active=0; }
3551: }
3552: if ($active) { return 1; }
3553: }
3554: }
3555: }
3556: }
3557: return 0;
1.9 www 3558: }
1.1 albertel 3559:
1.103 harris41 3560: # -------------------------------------------------------- Get user privileges
1.11 www 3561:
3562: sub rolesinit {
3563: my ($domain,$username,$authhost)=@_;
1.966 ! raeburn 3564: my %userroles;
1.11 www 3565: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.966 ! raeburn 3566: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return \%userroles; }
1.11 www 3567: my %allroles=();
1.678 raeburn 3568: my %allgroups=();
1.11 www 3569: my $now=time;
1.966 ! raeburn 3570: %userroles = ('user.login.time' => $now);
1.678 raeburn 3571: my $group_privs;
1.11 www 3572:
3573: if ($rolesdump ne '') {
1.800 albertel 3574: foreach my $entry (split(/&/,$rolesdump)) {
3575: if ($entry!~/^rolesdef_/) {
3576: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3577: $area=~s/\_\w\w$//;
1.678 raeburn 3578: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3579: if ($role=~/^cr/) {
1.807 albertel 3580: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3581: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3582: ($tend,$tstart)=split('_',$trest);
3583: } else {
3584: $trole=$role;
3585: }
1.678 raeburn 3586: } elsif ($role =~ m|^gr/|) {
3587: ($trole,$tend,$tstart) = split(/_/,$role);
3588: ($trole,$group_privs) = split(/\//,$trole);
3589: $group_privs = &unescape($group_privs);
1.587 albertel 3590: } else {
3591: ($trole,$tend,$tstart)=split(/_/,$role);
3592: }
1.743 albertel 3593: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3594: $username);
3595: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3596: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3597: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3598: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3599: my $spec=$trole.'.'.$area;
3600: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3601: if ($trole =~ /^cr\//) {
1.567 raeburn 3602: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3603: } elsif ($trole eq 'gr') {
3604: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3605: } else {
1.567 raeburn 3606: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3607: }
1.12 www 3608: }
1.662 raeburn 3609: }
1.191 harris41 3610: }
1.743 albertel 3611: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3612: $userroles{'user.adv'} = $adv;
3613: $userroles{'user.author'} = $author;
1.620 albertel 3614: $env{'user.adv'}=$adv;
1.11 www 3615: }
1.743 albertel 3616: return \%userroles;
1.11 www 3617: }
3618:
1.567 raeburn 3619: sub set_arearole {
3620: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3621: # log the associated role with the area
3622: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3623: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3624: }
3625:
3626: sub custom_roleprivs {
3627: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3628: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3629: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3630: if (&hostname($homsvr) ne '') {
1.567 raeburn 3631: my ($rdummy,$roledef)=
3632: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3633: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3634: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3635: if (defined($syspriv)) {
3636: $$allroles{'cm./'}.=':'.$syspriv;
3637: $$allroles{$spec.'./'}.=':'.$syspriv;
3638: }
3639: if ($tdomain ne '') {
3640: if (defined($dompriv)) {
3641: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3642: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3643: }
3644: if (($trest ne '') && (defined($coursepriv))) {
3645: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3646: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3647: }
3648: }
3649: }
3650: }
3651: }
3652:
1.678 raeburn 3653: sub group_roleprivs {
3654: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3655: my $access = 1;
3656: my $now = time;
3657: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3658: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3659: if ($access) {
1.811 albertel 3660: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3661: $$allgroups{$course}{$group} .=':'.$group_privs;
3662: }
3663: }
1.567 raeburn 3664:
3665: sub standard_roleprivs {
3666: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3667: if (defined($pr{$trole.':s'})) {
3668: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3669: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3670: }
3671: if ($tdomain ne '') {
3672: if (defined($pr{$trole.':d'})) {
3673: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3674: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3675: }
3676: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3677: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3678: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3679: }
3680: }
3681: }
3682:
3683: sub set_userprivs {
1.678 raeburn 3684: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3685: my $author=0;
3686: my $adv=0;
1.678 raeburn 3687: my %grouproles = ();
3688: if (keys(%{$allgroups}) > 0) {
3689: foreach my $role (keys %{$allroles}) {
1.681 raeburn 3690: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3691: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3692: $trole = $1;
3693: $area = $2;
1.681 raeburn 3694: $sec = $3;
3695: $extendedarea = $area.$sec;
3696: if (exists($$allgroups{$area})) {
3697: foreach my $group (keys(%{$$allgroups{$area}})) {
3698: my $spec = $trole.'.'.$extendedarea;
3699: $grouproles{$spec.'.'.$area.'/'.$group} =
3700: $$allgroups{$area}{$group};
1.678 raeburn 3701: }
3702: }
3703: }
3704: }
3705: }
1.800 albertel 3706: foreach my $group (keys(%grouproles)) {
3707: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 3708: }
1.800 albertel 3709: foreach my $role (keys(%{$allroles})) {
3710: my %thesepriv;
1.941 raeburn 3711: if (($role=~/^au/) || ($role=~/^ca/) || ($role=~/^aa/)) { $author=1; }
1.800 albertel 3712: foreach my $item (split(/:/,$$allroles{$role})) {
3713: if ($item ne '') {
3714: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 3715: if ($restrictions eq '') {
3716: $thesepriv{$privilege}='F';
3717: } elsif ($thesepriv{$privilege} ne 'F') {
3718: $thesepriv{$privilege}.=$restrictions;
3719: }
3720: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
3721: }
3722: }
3723: my $thesestr='';
1.800 albertel 3724: foreach my $priv (keys(%thesepriv)) {
3725: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
3726: }
3727: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 3728: }
3729: return ($author,$adv);
3730: }
3731:
1.12 www 3732: # --------------------------------------------------------------- get interface
3733:
3734: sub get {
1.131 albertel 3735: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3736: my $items='';
1.800 albertel 3737: foreach my $item (@$storearr) {
3738: $items.=&escape($item).'&';
1.191 harris41 3739: }
1.12 www 3740: $items=~s/\&$//;
1.620 albertel 3741: if (!$udomain) { $udomain=$env{'user.domain'}; }
3742: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 3743: my $uhome=&homeserver($uname,$udomain);
3744:
1.133 albertel 3745: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3746: my @pairs=split(/\&/,$rep);
1.273 albertel 3747: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
3748: return @pairs;
3749: }
1.15 www 3750: my %returnhash=();
1.42 www 3751: my $i=0;
1.800 albertel 3752: foreach my $item (@$storearr) {
3753: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 3754: $i++;
1.191 harris41 3755: }
1.15 www 3756: return %returnhash;
1.27 www 3757: }
3758:
3759: # --------------------------------------------------------------- del interface
3760:
3761: sub del {
1.133 albertel 3762: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 3763: my $items='';
1.800 albertel 3764: foreach my $item (@$storearr) {
3765: $items.=&escape($item).'&';
1.191 harris41 3766: }
1.27 www 3767: $items=~s/\&$//;
1.620 albertel 3768: if (!$udomain) { $udomain=$env{'user.domain'}; }
3769: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3770: my $uhome=&homeserver($uname,$udomain);
3771:
3772: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3773: }
3774:
3775: # -------------------------------------------------------------- dump interface
3776:
3777: sub dump {
1.755 albertel 3778: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
3779: if (!$udomain) { $udomain=$env{'user.domain'}; }
3780: if (!$uname) { $uname=$env{'user.name'}; }
3781: my $uhome=&homeserver($uname,$udomain);
3782: if ($regexp) {
3783: $regexp=&escape($regexp);
3784: } else {
3785: $regexp='.';
3786: }
3787: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3788: my @pairs=split(/\&/,$rep);
3789: my %returnhash=();
3790: foreach my $item (@pairs) {
3791: my ($key,$value)=split(/=/,$item,2);
3792: $key = &unescape($key);
3793: next if ($key =~ /^error: 2 /);
3794: $returnhash{$key}=&thaw_unescape($value);
3795: }
3796: return %returnhash;
1.407 www 3797: }
3798:
1.717 albertel 3799: # --------------------------------------------------------- dumpstore interface
3800:
3801: sub dumpstore {
3802: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 3803: if (!$udomain) { $udomain=$env{'user.domain'}; }
3804: if (!$uname) { $uname=$env{'user.name'}; }
3805: my $uhome=&homeserver($uname,$udomain);
3806: if ($regexp) {
3807: $regexp=&escape($regexp);
3808: } else {
3809: $regexp='.';
3810: }
3811: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3812: my @pairs=split(/\&/,$rep);
3813: my %returnhash=();
3814: foreach my $item (@pairs) {
3815: my ($key,$value)=split(/=/,$item,2);
3816: next if ($key =~ /^error: 2 /);
3817: $returnhash{$key}=&thaw_unescape($value);
3818: }
3819: return %returnhash;
1.717 albertel 3820: }
3821:
1.407 www 3822: # -------------------------------------------------------------- keys interface
3823:
3824: sub getkeys {
3825: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 3826: if (!$udomain) { $udomain=$env{'user.domain'}; }
3827: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 3828: my $uhome=&homeserver($uname,$udomain);
3829: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
3830: my @keyarray=();
1.800 albertel 3831: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 3832: next if ($key =~ /^error: 2 /);
1.800 albertel 3833: push(@keyarray,&unescape($key));
1.407 www 3834: }
3835: return @keyarray;
1.318 matthew 3836: }
3837:
1.319 matthew 3838: # --------------------------------------------------------------- currentdump
3839: sub currentdump {
1.328 matthew 3840: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 3841: $courseid = $env{'request.course.id'} if (! defined($courseid));
3842: $sdom = $env{'user.domain'} if (! defined($sdom));
3843: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 3844: my $uhome = &homeserver($sname,$sdom);
3845: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 3846: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 3847: #
1.318 matthew 3848: my %returnhash=();
1.319 matthew 3849: #
3850: if ($rep eq "unknown_cmd") {
3851: # an old lond will not know currentdump
3852: # Do a dump and make it look like a currentdump
1.822 albertel 3853: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 3854: return if ($tmp[0] =~ /^(error:|no_such_host)/);
3855: my %hash = @tmp;
3856: @tmp=();
1.424 matthew 3857: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 3858: } else {
3859: my @pairs=split(/\&/,$rep);
1.800 albertel 3860: foreach my $pair (@pairs) {
3861: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 3862: my ($symb,$param) = split(/:/,$key);
3863: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 3864: &thaw_unescape($value);
1.319 matthew 3865: }
1.191 harris41 3866: }
1.12 www 3867: return %returnhash;
1.424 matthew 3868: }
3869:
3870: sub convert_dump_to_currentdump{
3871: my %hash = %{shift()};
3872: my %returnhash;
3873: # Code ripped from lond, essentially. The only difference
3874: # here is the unescaping done by lonnet::dump(). Conceivably
3875: # we might run in to problems with parameter names =~ /^v\./
3876: while (my ($key,$value) = each(%hash)) {
3877: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 3878: $symb = &unescape($symb);
3879: $param = &unescape($param);
1.424 matthew 3880: next if ($v eq 'version' || $symb eq 'keys');
3881: next if (exists($returnhash{$symb}) &&
3882: exists($returnhash{$symb}->{$param}) &&
3883: $returnhash{$symb}->{'v.'.$param} > $v);
3884: $returnhash{$symb}->{$param}=$value;
3885: $returnhash{$symb}->{'v.'.$param}=$v;
3886: }
3887: #
3888: # Remove all of the keys in the hashes which keep track of
3889: # the version of the parameter.
3890: while (my ($symb,$param_hash) = each(%returnhash)) {
3891: # use a foreach because we are going to delete from the hash.
3892: foreach my $key (keys(%$param_hash)) {
3893: delete($param_hash->{$key}) if ($key =~ /^v\./);
3894: }
3895: }
3896: return \%returnhash;
1.12 www 3897: }
3898:
1.627 albertel 3899: # ------------------------------------------------------ critical inc interface
3900:
3901: sub cinc {
3902: return &inc(@_,'critical');
3903: }
3904:
1.449 matthew 3905: # --------------------------------------------------------------- inc interface
3906:
3907: sub inc {
1.627 albertel 3908: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 3909: if (!$udomain) { $udomain=$env{'user.domain'}; }
3910: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 3911: my $uhome=&homeserver($uname,$udomain);
3912: my $items='';
3913: if (! ref($store)) {
3914: # got a single value, so use that instead
3915: $items = &escape($store).'=&';
3916: } elsif (ref($store) eq 'SCALAR') {
3917: $items = &escape($$store).'=&';
3918: } elsif (ref($store) eq 'ARRAY') {
3919: $items = join('=&',map {&escape($_);} @{$store});
3920: } elsif (ref($store) eq 'HASH') {
3921: while (my($key,$value) = each(%{$store})) {
3922: $items.= &escape($key).'='.&escape($value).'&';
3923: }
3924: }
3925: $items=~s/\&$//;
1.627 albertel 3926: if ($critical) {
3927: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
3928: } else {
3929: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
3930: }
1.449 matthew 3931: }
3932:
1.12 www 3933: # --------------------------------------------------------------- put interface
3934:
3935: sub put {
1.134 albertel 3936: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3937: if (!$udomain) { $udomain=$env{'user.domain'}; }
3938: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3939: my $uhome=&homeserver($uname,$udomain);
1.12 www 3940: my $items='';
1.800 albertel 3941: foreach my $item (keys(%$storehash)) {
3942: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 3943: }
1.12 www 3944: $items=~s/\&$//;
1.134 albertel 3945: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 3946: }
3947:
1.631 albertel 3948: # ------------------------------------------------------------ newput interface
3949:
3950: sub newput {
3951: my ($namespace,$storehash,$udomain,$uname)=@_;
3952: if (!$udomain) { $udomain=$env{'user.domain'}; }
3953: if (!$uname) { $uname=$env{'user.name'}; }
3954: my $uhome=&homeserver($uname,$udomain);
3955: my $items='';
3956: foreach my $key (keys(%$storehash)) {
3957: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
3958: }
3959: $items=~s/\&$//;
3960: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
3961: }
3962:
3963: # --------------------------------------------------------- putstore interface
3964:
1.524 raeburn 3965: sub putstore {
1.715 albertel 3966: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 3967: if (!$udomain) { $udomain=$env{'user.domain'}; }
3968: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 3969: my $uhome=&homeserver($uname,$udomain);
3970: my $items='';
1.715 albertel 3971: foreach my $key (keys(%$storehash)) {
3972: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 3973: }
1.715 albertel 3974: $items=~s/\&$//;
1.716 albertel 3975: my $esc_symb=&escape($symb);
3976: my $esc_v=&escape($version);
1.715 albertel 3977: my $reply =
1.716 albertel 3978: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 3979: $uhome);
3980: if ($reply eq 'unknown_cmd') {
1.716 albertel 3981: # gfall back to way things use to be done
1.715 albertel 3982: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
3983: $uname);
1.524 raeburn 3984: }
1.715 albertel 3985: return $reply;
3986: }
3987:
3988: sub old_putstore {
1.716 albertel 3989: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
3990: if (!$udomain) { $udomain=$env{'user.domain'}; }
3991: if (!$uname) { $uname=$env{'user.name'}; }
3992: my $uhome=&homeserver($uname,$udomain);
3993: my %newstorehash;
1.800 albertel 3994: foreach my $item (keys(%$storehash)) {
3995: my $key = $version.':'.&escape($symb).':'.$item;
3996: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 3997: }
3998: my $items='';
3999: my %allitems = ();
1.800 albertel 4000: foreach my $item (keys(%newstorehash)) {
4001: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 4002: my $key = $1.':keys:'.$2;
4003: $allitems{$key} .= $3.':';
4004: }
1.800 albertel 4005: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 4006: }
1.800 albertel 4007: foreach my $item (keys(%allitems)) {
4008: $allitems{$item} =~ s/\:$//;
4009: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 4010: }
4011: $items=~s/\&$//;
4012: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 4013: }
4014:
1.47 www 4015: # ------------------------------------------------------ critical put interface
4016:
4017: sub cput {
1.134 albertel 4018: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 4019: if (!$udomain) { $udomain=$env{'user.domain'}; }
4020: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 4021: my $uhome=&homeserver($uname,$udomain);
1.47 www 4022: my $items='';
1.800 albertel 4023: foreach my $item (keys(%$storehash)) {
4024: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 4025: }
1.47 www 4026: $items=~s/\&$//;
1.134 albertel 4027: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4028: }
4029:
4030: # -------------------------------------------------------------- eget interface
4031:
4032: sub eget {
1.133 albertel 4033: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 4034: my $items='';
1.800 albertel 4035: foreach my $item (@$storearr) {
4036: $items.=&escape($item).'&';
1.191 harris41 4037: }
1.12 www 4038: $items=~s/\&$//;
1.620 albertel 4039: if (!$udomain) { $udomain=$env{'user.domain'}; }
4040: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 4041: my $uhome=&homeserver($uname,$udomain);
4042: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 4043: my @pairs=split(/\&/,$rep);
4044: my %returnhash=();
1.42 www 4045: my $i=0;
1.800 albertel 4046: foreach my $item (@$storearr) {
4047: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 4048: $i++;
1.191 harris41 4049: }
1.12 www 4050: return %returnhash;
4051: }
4052:
1.667 albertel 4053: # ------------------------------------------------------------ tmpput interface
4054: sub tmpput {
1.802 raeburn 4055: my ($storehash,$server,$context)=@_;
1.667 albertel 4056: my $items='';
1.800 albertel 4057: foreach my $item (keys(%$storehash)) {
4058: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 4059: }
4060: $items=~s/\&$//;
1.802 raeburn 4061: if (defined($context)) {
4062: $items .= ':'.&escape($context);
4063: }
1.667 albertel 4064: return &reply("tmpput:$items",$server);
4065: }
4066:
4067: # ------------------------------------------------------------ tmpget interface
4068: sub tmpget {
1.688 albertel 4069: my ($token,$server)=@_;
4070: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4071: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 4072: my %returnhash;
4073: foreach my $item (split(/\&/,$rep)) {
4074: my ($key,$value)=split(/=/,$item);
1.951 raeburn 4075: next if ($key =~ /^error: 2 /);
1.667 albertel 4076: $returnhash{&unescape($key)}=&thaw_unescape($value);
4077: }
4078: return %returnhash;
4079: }
4080:
1.688 albertel 4081: # ------------------------------------------------------------ tmpget interface
4082: sub tmpdel {
4083: my ($token,$server)=@_;
4084: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
4085: return &reply("tmpdel:$token",$server);
4086: }
4087:
1.765 albertel 4088: # -------------------------------------------------- portfolio access checking
4089:
4090: sub portfolio_access {
1.766 albertel 4091: my ($requrl) = @_;
1.765 albertel 4092: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
4093: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 4094: if ($result) {
4095: my %setters;
4096: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4097: my ($startblock,$endblock) =
4098: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
4099: if ($startblock && $endblock) {
4100: return 'B';
4101: }
4102: } else {
4103: my ($startblock,$endblock) =
4104: &Apache::loncommon::blockcheck(\%setters,'port');
4105: if ($startblock && $endblock) {
4106: return 'B';
4107: }
4108: }
4109: }
1.765 albertel 4110: if ($result eq 'ok') {
1.766 albertel 4111: return 'F';
1.765 albertel 4112: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 4113: return 'A';
1.765 albertel 4114: }
1.766 albertel 4115: return '';
1.765 albertel 4116: }
4117:
4118: sub get_portfolio_access {
1.767 albertel 4119: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
4120:
4121: if (!ref($access_hash)) {
4122: my $current_perms = &get_portfile_permissions($udom,$unum);
4123: my %access_controls = &get_access_controls($current_perms,$group,
4124: $file_name);
4125: $access_hash = $access_controls{$file_name};
4126: }
4127:
1.765 albertel 4128: my ($public,$guest,@domains,@users,@courses,@groups);
4129: my $now = time;
4130: if (ref($access_hash) eq 'HASH') {
4131: foreach my $key (keys(%{$access_hash})) {
4132: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
4133: if ($start > $now) {
4134: next;
4135: }
4136: if ($end && $end<$now) {
4137: next;
4138: }
4139: if ($scope eq 'public') {
4140: $public = $key;
4141: last;
4142: } elsif ($scope eq 'guest') {
4143: $guest = $key;
4144: } elsif ($scope eq 'domains') {
4145: push(@domains,$key);
4146: } elsif ($scope eq 'users') {
4147: push(@users,$key);
4148: } elsif ($scope eq 'course') {
4149: push(@courses,$key);
4150: } elsif ($scope eq 'group') {
4151: push(@groups,$key);
4152: }
4153: }
4154: if ($public) {
4155: return 'ok';
4156: }
4157: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
4158: if ($guest) {
4159: return $guest;
4160: }
4161: } else {
4162: if (@domains > 0) {
4163: foreach my $domkey (@domains) {
4164: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
4165: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
4166: return 'ok';
4167: }
4168: }
4169: }
4170: }
4171: if (@users > 0) {
4172: foreach my $userkey (@users) {
1.865 raeburn 4173: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
4174: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
4175: if (ref($item) eq 'HASH') {
4176: if (($item->{'uname'} eq $env{'user.name'}) &&
4177: ($item->{'udom'} eq $env{'user.domain'})) {
4178: return 'ok';
4179: }
4180: }
4181: }
4182: }
1.765 albertel 4183: }
4184: }
4185: my %roleshash;
4186: my @courses_and_groups = @courses;
4187: push(@courses_and_groups,@groups);
4188: if (@courses_and_groups > 0) {
4189: my (%allgroups,%allroles);
4190: my ($start,$end,$role,$sec,$group);
4191: foreach my $envkey (%env) {
1.811 albertel 4192: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4193: my $cid = $2.'_'.$3;
4194: if ($1 eq 'gr') {
4195: $group = $4;
4196: $allgroups{$cid}{$group} = $env{$envkey};
4197: } else {
4198: if ($4 eq '') {
4199: $sec = 'none';
4200: } else {
4201: $sec = $4;
4202: }
4203: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4204: }
1.811 albertel 4205: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 4206: my $cid = $2.'_'.$3;
4207: if ($4 eq '') {
4208: $sec = 'none';
4209: } else {
4210: $sec = $4;
4211: }
4212: $allroles{$cid}{$1}{$sec} = $env{$envkey};
4213: }
4214: }
4215: if (keys(%allroles) == 0) {
4216: return;
4217: }
4218: foreach my $key (@courses_and_groups) {
4219: my %content = %{$$access_hash{$key}};
4220: my $cnum = $content{'number'};
4221: my $cdom = $content{'domain'};
4222: my $cid = $cdom.'_'.$cnum;
4223: if (!exists($allroles{$cid})) {
4224: next;
4225: }
4226: foreach my $role_id (keys(%{$content{'roles'}})) {
4227: my @sections = @{$content{'roles'}{$role_id}{'section'}};
4228: my @groups = @{$content{'roles'}{$role_id}{'group'}};
4229: my @status = @{$content{'roles'}{$role_id}{'access'}};
4230: my @roles = @{$content{'roles'}{$role_id}{'role'}};
4231: foreach my $role (keys(%{$allroles{$cid}})) {
4232: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
4233: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
4234: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
4235: if (grep/^all$/,@sections) {
4236: return 'ok';
4237: } else {
4238: if (grep/^$sec$/,@sections) {
4239: return 'ok';
4240: }
4241: }
4242: }
4243: }
4244: if (keys(%{$allgroups{$cid}}) == 0) {
4245: if (grep/^none$/,@groups) {
4246: return 'ok';
4247: }
4248: } else {
4249: if (grep/^all$/,@groups) {
4250: return 'ok';
4251: }
4252: foreach my $group (keys(%{$allgroups{$cid}})) {
4253: if (grep/^$group$/,@groups) {
4254: return 'ok';
4255: }
4256: }
4257: }
4258: }
4259: }
4260: }
4261: }
4262: }
4263: if ($guest) {
4264: return $guest;
4265: }
4266: }
4267: }
4268: return;
4269: }
4270:
4271: sub course_group_datechecker {
4272: my ($dates,$now,$status) = @_;
4273: my ($start,$end) = split(/\./,$dates);
4274: if (!$start && !$end) {
4275: return 'ok';
4276: }
4277: if (grep/^active$/,@{$status}) {
4278: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
4279: return 'ok';
4280: }
4281: }
4282: if (grep/^previous$/,@{$status}) {
4283: if ($end > $now ) {
4284: return 'ok';
4285: }
4286: }
4287: if (grep/^future$/,@{$status}) {
4288: if ($start > $now) {
4289: return 'ok';
4290: }
4291: }
4292: return;
4293: }
4294:
4295: sub parse_portfolio_url {
4296: my ($url) = @_;
4297:
4298: my ($type,$udom,$unum,$group,$file_name);
4299:
1.823 albertel 4300: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 4301: $type = 1;
4302: $udom = $1;
4303: $unum = $2;
4304: $file_name = $3;
1.823 albertel 4305: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 4306: $type = 2;
4307: $udom = $1;
4308: $unum = $2;
4309: $group = $3;
4310: $file_name = $3.'/'.$4;
4311: }
4312: if (wantarray) {
4313: return ($type,$udom,$unum,$file_name,$group);
4314: }
4315: return $type;
4316: }
4317:
4318: sub is_portfolio_url {
4319: my ($url) = @_;
4320: return scalar(&parse_portfolio_url($url));
4321: }
4322:
1.798 raeburn 4323: sub is_portfolio_file {
4324: my ($file) = @_;
1.820 raeburn 4325: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 4326: return 1;
4327: }
4328: return;
4329: }
4330:
4331:
1.341 www 4332: # ---------------------------------------------- Custom access rule evaluation
4333:
4334: sub customaccess {
4335: my ($priv,$uri)=@_;
1.807 albertel 4336: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 4337: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 4338: $udom = &LONCAPA::clean_domain($udom);
4339: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 4340: my $access=0;
1.800 albertel 4341: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 4342: my ($effect,$realm,$role,$type)=split(/\:/,$right);
4343: if ($type eq 'user') {
4344: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 4345: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 4346: if ($tdom) {
4347: if ($tdom ne $env{'user.domain'}) { next; }
4348: }
1.896 albertel 4349: if ($tuname) {
4350: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 4351: }
4352: $access=($effect eq 'allow');
4353: last;
4354: }
4355: } else {
4356: if ($role) {
4357: if ($role ne $urole) { next; }
4358: }
4359: foreach my $scope (split(/\s*\,\s*/,$realm)) {
4360: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
4361: if ($tdom) {
4362: if ($tdom ne $udom) { next; }
4363: }
4364: if ($tcrs) {
4365: if ($tcrs ne $ucrs) { next; }
4366: }
4367: if ($tsec) {
4368: if ($tsec ne $usec) { next; }
4369: }
4370: $access=($effect eq 'allow');
4371: last;
4372: }
4373: if ($realm eq '' && $role eq '') {
4374: $access=($effect eq 'allow');
4375: }
1.402 bowersj2 4376: }
1.341 www 4377: }
4378: return $access;
4379: }
4380:
1.103 harris41 4381: # ------------------------------------------------- Check for a user privilege
1.12 www 4382:
4383: sub allowed {
1.810 raeburn 4384: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 4385: my $ver_orguri=$uri;
1.439 www 4386: $uri=&deversion($uri);
1.152 www 4387: my $orguri=$uri;
1.52 www 4388: $uri=&declutter($uri);
1.809 raeburn 4389:
1.810 raeburn 4390: if ($priv eq 'evb') {
4391: # Evade communication block restrictions for specified role in a course
4392: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
4393: return $1;
4394: } else {
4395: return;
4396: }
4397: }
4398:
1.620 albertel 4399: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 4400: # Free bre access to adm and meta resources
1.775 albertel 4401: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 4402: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
4403: && ($priv eq 'bre')) {
1.14 www 4404: return 'F';
1.159 www 4405: }
4406:
1.545 banghart 4407: # Free bre access to user's own portfolio contents
1.714 raeburn 4408: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 4409: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 4410: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 4411: my %setters;
4412: my ($startblock,$endblock) =
4413: &Apache::loncommon::blockcheck(\%setters,'port');
4414: if ($startblock && $endblock) {
4415: return 'B';
4416: } else {
4417: return 'F';
4418: }
1.545 banghart 4419: }
4420:
1.762 raeburn 4421: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 4422: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
4423: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
4424: if (exists($env{'request.course.id'})) {
4425: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4426: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4427: if (($domain eq $cdom) && ($name eq $cnum)) {
4428: my $courseprivid=$env{'request.course.id'};
4429: $courseprivid=~s/\_/\//;
4430: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
4431: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
4432: return $1;
1.762 raeburn 4433: } else {
4434: if ($env{'request.course.sec'}) {
4435: $courseprivid.='/'.$env{'request.course.sec'};
4436: }
4437: if ($env{'user.priv.'.$env{'request.role'}.'./'.
4438: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
4439: return $2;
4440: }
1.714 raeburn 4441: }
4442: }
4443: }
4444: }
4445:
1.159 www 4446: # Free bre to public access
4447:
4448: if ($priv eq 'bre') {
1.238 www 4449: my $copyright=&metadata($uri,'copyright');
1.620 albertel 4450: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 4451: return 'F';
4452: }
1.238 www 4453: if ($copyright eq 'priv') {
4454: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4455: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 4456: return '';
4457: }
4458: }
4459: if ($copyright eq 'domain') {
4460: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4461: unless (($env{'user.domain'} eq $1) ||
4462: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 4463: return '';
4464: }
1.262 matthew 4465: }
1.620 albertel 4466: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 4467: # Library role, so allow browsing of resources in this domain.
4468: return 'F';
1.238 www 4469: }
1.341 www 4470: if ($copyright eq 'custom') {
4471: unless (&customaccess($priv,$uri)) { return ''; }
4472: }
1.14 www 4473: }
1.264 matthew 4474: # Domain coordinator is trying to create a course
1.620 albertel 4475: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 4476: # uri is the requested domain in this case.
4477: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 4478: # a role of dc for the domain in question.
1.620 albertel 4479: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 4480: }
1.29 www 4481:
1.52 www 4482: my $thisallowed='';
4483: my $statecond=0;
4484: my $courseprivid='';
4485:
4486: # Course
4487:
1.620 albertel 4488: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4489: $thisallowed.=$1;
4490: }
1.29 www 4491:
1.52 www 4492: # Domain
4493:
1.620 albertel 4494: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 4495: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4496: $thisallowed.=$1;
4497: }
1.52 www 4498:
4499: # Course: uri itself is a course
1.66 www 4500: my $courseuri=$uri;
4501: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 4502: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 4503:
1.620 albertel 4504: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 4505: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4506: $thisallowed.=$1;
4507: }
1.29 www 4508:
1.665 albertel 4509: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 4510: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 4511: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 4512: $thisallowed='';
1.671 raeburn 4513: my ($match)=&is_on_map($uri);
4514: if ($match) {
4515: if ($env{'user.priv.'.$env{'request.role'}.'./'}
4516: =~/\Q$priv\E\&([^\:]*)/) {
4517: $thisallowed.=$1;
4518: }
4519: } else {
1.705 albertel 4520: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 4521: if ($refuri) {
4522: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 4523: $thisallowed='F';
1.671 raeburn 4524: } else {
4525: $refuri=&declutter($refuri);
4526: my ($match) = &is_on_map($refuri);
4527: if ($match) {
4528: $thisallowed='F';
4529: }
1.669 raeburn 4530: }
1.671 raeburn 4531: }
4532: }
1.314 www 4533: }
1.492 albertel 4534:
1.766 albertel 4535: if ($priv eq 'bre'
4536: && $thisallowed ne 'F'
4537: && $thisallowed ne '2'
4538: && &is_portfolio_url($uri)) {
4539: $thisallowed = &portfolio_access($uri);
4540: }
4541:
1.52 www 4542: # Full access at system, domain or course-wide level? Exit.
1.29 www 4543: if ($thisallowed=~/F/) {
4544: return 'F';
4545: }
4546:
1.52 www 4547: # If this is generating or modifying users, exit with special codes
1.29 www 4548:
1.643 www 4549: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
4550: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 4551: my ($audom,$auname)=split('/',$uri);
1.643 www 4552: # no author name given, so this just checks on the general right to make a co-author in this domain
4553: unless ($auname) { return $thisallowed; }
4554: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 4555: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
4556: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
4557: ($audom ne $env{'request.role.domain'}))) { return ''; }
4558: }
1.52 www 4559: return $thisallowed;
4560: }
4561: #
1.103 harris41 4562: # Gathered so far: system, domain and course wide privileges
1.52 www 4563: #
4564: # Course: See if uri or referer is an individual resource that is part of
4565: # the course
4566:
1.620 albertel 4567: if ($env{'request.course.id'}) {
1.232 www 4568:
1.620 albertel 4569: $courseprivid=$env{'request.course.id'};
4570: if ($env{'request.course.sec'}) {
4571: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 4572: }
4573: $courseprivid=~s/\_/\//;
4574: my $checkreferer=1;
1.232 www 4575: my ($match,$cond)=&is_on_map($uri);
4576: if ($match) {
4577: $statecond=$cond;
1.620 albertel 4578: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4579: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4580: $thisallowed.=$1;
4581: $checkreferer=0;
4582: }
1.29 www 4583: }
1.83 www 4584:
1.148 www 4585: if ($checkreferer) {
1.620 albertel 4586: my $refuri=$env{'httpref.'.$orguri};
1.148 www 4587: unless ($refuri) {
1.800 albertel 4588: foreach my $key (keys(%env)) {
4589: if ($key=~/^httpref\..*\*/) {
4590: my $pattern=$key;
1.156 www 4591: $pattern=~s/^httpref\.\/res\///;
1.148 www 4592: $pattern=~s/\*/\[\^\/\]\+/g;
4593: $pattern=~s/\//\\\//g;
1.152 www 4594: if ($orguri=~/$pattern/) {
1.800 albertel 4595: $refuri=$env{$key};
1.148 www 4596: }
4597: }
1.191 harris41 4598: }
1.148 www 4599: }
1.232 www 4600:
1.148 www 4601: if ($refuri) {
1.152 www 4602: $refuri=&declutter($refuri);
1.232 www 4603: my ($match,$cond)=&is_on_map($refuri);
4604: if ($match) {
4605: my $refstatecond=$cond;
1.620 albertel 4606: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4607: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4608: $thisallowed.=$1;
1.53 www 4609: $uri=$refuri;
4610: $statecond=$refstatecond;
1.52 www 4611: }
4612: }
1.148 www 4613: }
1.29 www 4614: }
1.52 www 4615: }
1.29 www 4616:
1.52 www 4617: #
1.103 harris41 4618: # Gathered now: all privileges that could apply, and condition number
1.52 www 4619: #
4620: #
4621: # Full or no access?
4622: #
1.29 www 4623:
1.52 www 4624: if ($thisallowed=~/F/) {
4625: return 'F';
4626: }
1.29 www 4627:
1.52 www 4628: unless ($thisallowed) {
4629: return '';
4630: }
1.29 www 4631:
1.52 www 4632: # Restrictions exist, deal with them
4633: #
4634: # C:according to course preferences
4635: # R:according to resource settings
4636: # L:unless locked
4637: # X:according to user session state
4638: #
4639:
4640: # Possibly locked functionality, check all courses
1.54 www 4641: # Locks might take effect only after 10 minutes cache expiration for other
4642: # courses, and 2 minutes for current course
1.52 www 4643:
4644: my $envkey;
4645: if ($thisallowed=~/L/) {
1.620 albertel 4646: foreach $envkey (keys %env) {
1.54 www 4647: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
4648: my $courseid=$2;
4649: my $roleid=$1.'.'.$2;
1.92 www 4650: $courseid=~s/^\///;
1.54 www 4651: my $expiretime=600;
1.620 albertel 4652: if ($env{'request.role'} eq $roleid) {
1.54 www 4653: $expiretime=120;
4654: }
4655: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
4656: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 4657: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 4658: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 4659: }
1.620 albertel 4660: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
4661: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
4662: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
4663: &log($env{'user.domain'},$env{'user.name'},
4664: $env{'user.home'},
1.57 www 4665: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 4666: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4667: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4668: return '';
4669: }
4670: }
1.620 albertel 4671: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
4672: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
4673: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
4674: &log($env{'user.domain'},$env{'user.name'},
4675: $env{'user.home'},
1.57 www 4676: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 4677: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4678: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4679: return '';
4680: }
4681: }
4682: }
1.29 www 4683: }
1.52 www 4684: }
4685:
4686: #
4687: # Rest of the restrictions depend on selected course
4688: #
4689:
1.620 albertel 4690: unless ($env{'request.course.id'}) {
1.766 albertel 4691: if ($thisallowed eq 'A') {
4692: return 'A';
1.814 raeburn 4693: } elsif ($thisallowed eq 'B') {
4694: return 'B';
1.766 albertel 4695: } else {
4696: return '1';
4697: }
1.52 www 4698: }
1.29 www 4699:
1.52 www 4700: #
4701: # Now user is definitely in a course
4702: #
1.53 www 4703:
4704:
4705: # Course preferences
4706:
4707: if ($thisallowed=~/C/) {
1.620 albertel 4708: my $rolecode=(split(/\./,$env{'request.role'}))[0];
4709: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
4710: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 4711: =~/\Q$rolecode\E/) {
1.689 albertel 4712: if ($priv ne 'pch') {
4713: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4714: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
4715: $env{'request.course.id'});
4716: }
1.237 www 4717: return '';
4718: }
4719:
1.620 albertel 4720: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 4721: =~/\Q$unamedom\E/) {
1.689 albertel 4722: if ($priv ne 'pch') {
4723: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
4724: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
4725: $env{'request.course.id'});
4726: }
1.54 www 4727: return '';
4728: }
1.53 www 4729: }
4730:
4731: # Resource preferences
4732:
4733: if ($thisallowed=~/R/) {
1.620 albertel 4734: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 4735: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 4736: if ($priv ne 'pch') {
4737: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4738: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
4739: }
4740: return '';
1.54 www 4741: }
1.53 www 4742: }
1.30 www 4743:
1.246 www 4744: # Restricted by state or randomout?
1.30 www 4745:
1.52 www 4746: if ($thisallowed=~/X/) {
1.620 albertel 4747: if ($env{'acc.randomout'}) {
1.579 albertel 4748: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 4749: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 4750: return '';
4751: }
1.247 www 4752: }
4753: if (&condval($statecond)) {
1.52 www 4754: return '2';
4755: } else {
4756: return '';
4757: }
4758: }
1.30 www 4759:
1.766 albertel 4760: if ($thisallowed eq 'A') {
4761: return 'A';
1.814 raeburn 4762: } elsif ($thisallowed eq 'B') {
4763: return 'B';
1.766 albertel 4764: }
1.52 www 4765: return 'F';
1.232 www 4766: }
4767:
1.710 albertel 4768: sub split_uri_for_cond {
4769: my $uri=&deversion(&declutter(shift));
4770: my @uriparts=split(/\//,$uri);
4771: my $filename=pop(@uriparts);
4772: my $pathname=join('/',@uriparts);
4773: return ($pathname,$filename);
4774: }
1.232 www 4775: # --------------------------------------------------- Is a resource on the map?
4776:
4777: sub is_on_map {
1.710 albertel 4778: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 4779: #Trying to find the conditional for the file
1.620 albertel 4780: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 4781: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 4782: if ($match) {
1.289 bowersj2 4783: return (1,$1);
4784: } else {
1.434 www 4785: return (0,0);
1.289 bowersj2 4786: }
1.12 www 4787: }
4788:
1.427 www 4789: # --------------------------------------------------------- Get symb from alias
4790:
4791: sub get_symb_from_alias {
4792: my $symb=shift;
4793: my ($map,$resid,$url)=&decode_symb($symb);
4794: # Already is a symb
4795: if ($url) { return $symb; }
4796: # Must be an alias
4797: my $aliassymb='';
4798: my %bighash;
1.620 albertel 4799: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 4800: &GDBM_READER(),0640)) {
4801: my $rid=$bighash{'mapalias_'.$symb};
4802: if ($rid) {
4803: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 4804: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
4805: $resid,$bighash{'src_'.$rid});
1.427 www 4806: }
4807: untie %bighash;
4808: }
4809: return $aliassymb;
4810: }
4811:
1.12 www 4812: # ----------------------------------------------------------------- Define Role
4813:
4814: sub definerole {
4815: if (allowed('mcr','/')) {
4816: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 4817: foreach my $role (split(':',$sysrole)) {
4818: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4819: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
4820: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
4821: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4822: return "refused:s:$crole&$cqual";
4823: }
4824: }
1.191 harris41 4825: }
1.800 albertel 4826: foreach my $role (split(':',$domrole)) {
4827: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4828: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
4829: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
4830: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 4831: return "refused:d:$crole&$cqual";
4832: }
4833: }
1.191 harris41 4834: }
1.800 albertel 4835: foreach my $role (split(':',$courole)) {
4836: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4837: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
4838: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
4839: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4840: return "refused:c:$crole&$cqual";
4841: }
4842: }
1.191 harris41 4843: }
1.620 albertel 4844: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
4845: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 4846: "rolesdef_$rolename=".
4847: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 4848: return reply($command,$env{'user.home'});
1.12 www 4849: } else {
4850: return 'refused';
4851: }
1.105 harris41 4852: }
4853:
4854: # ---------------- Make a metadata query against the network of library servers
4855:
4856: sub metadata_query {
1.244 matthew 4857: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 4858: my %rhash;
1.845 albertel 4859: my %libserv = &all_library();
1.244 matthew 4860: my @server_list = (defined($server_array) ? @$server_array
4861: : keys(%libserv) );
4862: for my $server (@server_list) {
1.118 harris41 4863: unless ($custom or $customshow) {
4864: my $reply=&reply("querysend:".&escape($query),$server);
4865: $rhash{$server}=$reply;
4866: }
4867: else {
4868: my $reply=&reply("querysend:".&escape($query).':'.
4869: &escape($custom).':'.&escape($customshow),
4870: $server);
4871: $rhash{$server}=$reply;
4872: }
1.112 harris41 4873: }
1.118 harris41 4874: return \%rhash;
1.240 www 4875: }
4876:
4877: # ----------------------------------------- Send log queries and wait for reply
4878:
4879: sub log_query {
4880: my ($uname,$udom,$query,%filters)=@_;
4881: my $uhome=&homeserver($uname,$udom);
4882: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 4883: my $uhost=&hostname($uhome);
1.800 albertel 4884: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 4885: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
4886: $uhome);
1.479 albertel 4887: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 4888: return get_query_reply($queryid);
4889: }
4890:
1.818 raeburn 4891: # -------------------------- Update MySQL table for portfolio file
4892:
4893: sub update_portfolio_table {
1.821 raeburn 4894: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.818 raeburn 4895: my $homeserver = &homeserver($uname,$udom);
4896: my $queryid=
1.821 raeburn 4897: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
4898: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 4899: my $reply = &get_query_reply($queryid);
4900: return $reply;
4901: }
4902:
1.899 raeburn 4903: # -------------------------- Update MySQL allusers table
4904:
4905: sub update_allusers_table {
4906: my ($uname,$udom,$names) = @_;
4907: my $homeserver = &homeserver($uname,$udom);
4908: my $queryid=
4909: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
4910: 'lastname='.&escape($names->{'lastname'}).'%%'.
4911: 'firstname='.&escape($names->{'firstname'}).'%%'.
4912: 'middlename='.&escape($names->{'middlename'}).'%%'.
4913: 'generation='.&escape($names->{'generation'}).'%%'.
4914: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
4915: 'id='.&escape($names->{'id'}),$homeserver);
4916: my $reply = &get_query_reply($queryid);
4917: return $reply;
4918: }
4919:
1.508 raeburn 4920: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 4921:
4922: sub fetch_enrollment_query {
1.511 raeburn 4923: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 4924: my $homeserver;
1.547 raeburn 4925: my $maxtries = 1;
1.508 raeburn 4926: if ($context eq 'automated') {
4927: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 4928: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 4929: } else {
4930: $homeserver = &homeserver($cnum,$dom);
4931: }
1.838 albertel 4932: my $host=&hostname($homeserver);
1.506 raeburn 4933: my $cmd = '';
1.800 albertel 4934: foreach my $affiliate (keys %{$affiliatesref}) {
4935: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 4936: }
4937: $cmd =~ s/%%$//;
4938: $cmd = &escape($cmd);
4939: my $query = 'fetchenrollment';
1.620 albertel 4940: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 4941: unless ($queryid=~/^\Q$host\E\_/) {
4942: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
4943: return 'error: '.$queryid;
4944: }
1.506 raeburn 4945: my $reply = &get_query_reply($queryid);
1.547 raeburn 4946: my $tries = 1;
4947: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4948: $reply = &get_query_reply($queryid);
4949: $tries ++;
4950: }
1.526 raeburn 4951: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 4952: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 4953: } else {
1.901 albertel 4954: my @responses = split(/:/,$reply);
1.515 raeburn 4955: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 4956: foreach my $line (@responses) {
4957: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 4958: $$replyref{$key} = $value;
4959: }
4960: } else {
1.506 raeburn 4961: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 4962: foreach my $line (@responses) {
4963: my ($key,$value) = split(/=/,$line);
1.506 raeburn 4964: $$replyref{$key} = $value;
4965: if ($value > 0) {
1.800 albertel 4966: foreach my $item (@{$$affiliatesref{$key}}) {
4967: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 4968: my $destname = $pathname.'/'.$filename;
4969: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 4970: if ($xml_classlist =~ /^error/) {
4971: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
4972: } else {
1.506 raeburn 4973: if ( open(FILE,">$destname") ) {
4974: print FILE &unescape($xml_classlist);
4975: close(FILE);
1.526 raeburn 4976: } else {
4977: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 4978: }
4979: }
4980: }
4981: }
4982: }
4983: }
4984: return 'ok';
4985: }
4986: return 'error';
4987: }
4988:
1.242 www 4989: sub get_query_reply {
4990: my $queryid=shift;
1.240 www 4991: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
4992: my $reply='';
4993: for (1..100) {
4994: sleep 2;
4995: if (-e $replyfile.'.end') {
1.448 albertel 4996: if (open(my $fh,$replyfile)) {
1.904 albertel 4997: $reply = join('',<$fh>);
4998: close($fh);
1.240 www 4999: } else { return 'error: reply_file_error'; }
1.242 www 5000: return &unescape($reply);
5001: }
1.240 www 5002: }
1.242 www 5003: return 'timeout:'.$queryid;
1.240 www 5004: }
5005:
5006: sub courselog_query {
1.241 www 5007: #
5008: # possible filters:
5009: # url: url or symb
5010: # username
5011: # domain
5012: # action: view, submit, grade
5013: # start: timestamp
5014: # end: timestamp
5015: #
1.240 www 5016: my (%filters)=@_;
1.620 albertel 5017: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 5018: if ($filters{'url'}) {
5019: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
5020: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
5021: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
5022: }
1.620 albertel 5023: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
5024: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 5025: return &log_query($cname,$cdom,'courselog',%filters);
5026: }
5027:
5028: sub userlog_query {
1.858 raeburn 5029: #
5030: # possible filters:
5031: # action: log check role
5032: # start: timestamp
5033: # end: timestamp
5034: #
1.240 www 5035: my ($uname,$udom,%filters)=@_;
5036: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 5037: }
5038:
1.506 raeburn 5039: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
5040:
5041: sub auto_run {
1.508 raeburn 5042: my ($cnum,$cdom) = @_;
1.876 raeburn 5043: my $response = 0;
5044: my $settings;
5045: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
5046: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
5047: $settings = $domconfig{'autoenroll'};
5048: if ($settings->{'run'} eq '1') {
5049: $response = 1;
5050: }
5051: } else {
1.934 raeburn 5052: my $homeserver;
5053: if (&is_course($cdom,$cnum)) {
5054: $homeserver = &homeserver($cnum,$cdom);
5055: } else {
5056: $homeserver = &domain($cdom,'primary');
5057: }
5058: if ($homeserver ne 'no_host') {
5059: $response = &reply('autorun:'.$cdom,$homeserver);
5060: }
1.876 raeburn 5061: }
1.506 raeburn 5062: return $response;
5063: }
1.776 albertel 5064:
1.506 raeburn 5065: sub auto_get_sections {
1.508 raeburn 5066: my ($cnum,$cdom,$inst_coursecode) = @_;
5067: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 5068: my @secs = ();
1.511 raeburn 5069: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 5070: unless ($response eq 'refused') {
1.901 albertel 5071: @secs = split(/:/,$response);
1.506 raeburn 5072: }
5073: return @secs;
5074: }
1.776 albertel 5075:
1.506 raeburn 5076: sub auto_new_course {
1.508 raeburn 5077: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
5078: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 5079: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 5080: return $response;
5081: }
1.776 albertel 5082:
1.506 raeburn 5083: sub auto_validate_courseID {
1.508 raeburn 5084: my ($cnum,$cdom,$inst_course_id) = @_;
5085: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 5086: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 5087: return $response;
5088: }
1.776 albertel 5089:
1.506 raeburn 5090: sub auto_create_password {
1.873 raeburn 5091: my ($cnum,$cdom,$authparam,$udom) = @_;
5092: my ($homeserver,$response);
1.506 raeburn 5093: my $create_passwd = 0;
5094: my $authchk = '';
1.873 raeburn 5095: if ($udom =~ /^$match_domain$/) {
5096: $homeserver = &domain($udom,'primary');
5097: }
5098: if ($homeserver eq '') {
5099: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
5100: $homeserver = &homeserver($cnum,$cdom);
5101: }
5102: }
5103: if ($homeserver eq '') {
5104: $authchk = 'nodomain';
1.506 raeburn 5105: } else {
1.873 raeburn 5106: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
5107: if ($response eq 'refused') {
5108: $authchk = 'refused';
5109: } else {
1.901 albertel 5110: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 5111: }
1.506 raeburn 5112: }
5113: return ($authparam,$create_passwd,$authchk);
5114: }
5115:
1.706 raeburn 5116: sub auto_photo_permission {
5117: my ($cnum,$cdom,$students) = @_;
5118: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 5119: my ($outcome,$perm_reqd,$conditions) =
5120: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 5121: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5122: return (undef,undef);
5123: }
1.706 raeburn 5124: return ($outcome,$perm_reqd,$conditions);
5125: }
5126:
5127: sub auto_checkphotos {
5128: my ($uname,$udom,$pid) = @_;
5129: my $homeserver = &homeserver($uname,$udom);
5130: my ($result,$resulttype);
5131: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 5132: &escape($uname).':'.&escape($pid),
5133: $homeserver));
1.709 albertel 5134: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5135: return (undef,undef);
5136: }
1.706 raeburn 5137: if ($outcome) {
5138: ($result,$resulttype) = split(/:/,$outcome);
5139: }
5140: return ($result,$resulttype);
5141: }
5142:
5143: sub auto_photochoice {
5144: my ($cnum,$cdom) = @_;
5145: my $homeserver = &homeserver($cnum,$cdom);
5146: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 5147: &escape($cdom),
5148: $homeserver)));
1.709 albertel 5149: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
5150: return (undef,undef);
5151: }
1.706 raeburn 5152: return ($update,$comment);
5153: }
5154:
5155: sub auto_photoupdate {
5156: my ($affiliatesref,$dom,$cnum,$photo) = @_;
5157: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 5158: my $host=&hostname($homeserver);
1.706 raeburn 5159: my $cmd = '';
5160: my $maxtries = 1;
1.800 albertel 5161: foreach my $affiliate (keys(%{$affiliatesref})) {
5162: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 5163: }
5164: $cmd =~ s/%%$//;
5165: $cmd = &escape($cmd);
5166: my $query = 'institutionalphotos';
5167: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
5168: unless ($queryid=~/^\Q$host\E\_/) {
5169: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
5170: return 'error: '.$queryid;
5171: }
5172: my $reply = &get_query_reply($queryid);
5173: my $tries = 1;
5174: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
5175: $reply = &get_query_reply($queryid);
5176: $tries ++;
5177: }
5178: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
5179: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
5180: } else {
5181: my @responses = split(/:/,$reply);
5182: my $outcome = shift(@responses);
5183: foreach my $item (@responses) {
5184: my ($key,$value) = split(/=/,$item);
5185: $$photo{$key} = $value;
5186: }
5187: return $outcome;
5188: }
5189: return 'error';
5190: }
5191:
1.521 raeburn 5192: sub auto_instcode_format {
1.793 albertel 5193: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
5194: $cat_order) = @_;
1.521 raeburn 5195: my $courses = '';
1.772 raeburn 5196: my @homeservers;
1.521 raeburn 5197: if ($caller eq 'global') {
1.841 albertel 5198: my %servers = &get_servers($codedom,'library');
5199: foreach my $tryserver (keys(%servers)) {
5200: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5201: push(@homeservers,$tryserver);
5202: }
1.584 raeburn 5203: }
1.521 raeburn 5204: } else {
1.772 raeburn 5205: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 5206: }
1.793 albertel 5207: foreach my $code (keys(%{$instcodes})) {
5208: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 5209: }
5210: chop($courses);
1.772 raeburn 5211: my $ok_response = 0;
5212: my $response;
5213: while (@homeservers > 0 && $ok_response == 0) {
5214: my $server = shift(@homeservers);
5215: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
5216: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
5217: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 5218: split(/:/,$response);
1.772 raeburn 5219: %{$codes} = (%{$codes},&str2hash($codes_str));
5220: push(@{$codetitles},&str2array($codetitles_str));
5221: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
5222: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
5223: $ok_response = 1;
5224: }
5225: }
5226: if ($ok_response) {
1.521 raeburn 5227: return 'ok';
1.772 raeburn 5228: } else {
5229: return $response;
1.521 raeburn 5230: }
5231: }
5232:
1.792 raeburn 5233: sub auto_instcode_defaults {
5234: my ($domain,$returnhash,$code_order) = @_;
5235: my @homeservers;
1.841 albertel 5236:
5237: my %servers = &get_servers($domain,'library');
5238: foreach my $tryserver (keys(%servers)) {
5239: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
5240: push(@homeservers,$tryserver);
5241: }
1.792 raeburn 5242: }
1.841 albertel 5243:
1.792 raeburn 5244: my $response;
1.841 albertel 5245: foreach my $server (@homeservers) {
1.792 raeburn 5246: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 5247: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
5248:
5249: foreach my $pair (split(/\&/,$response)) {
5250: my ($name,$value)=split(/\=/,$pair);
5251: if ($name eq 'code_order') {
5252: @{$code_order} = split(/\&/,&unescape($value));
5253: } else {
5254: $returnhash->{&unescape($name)}=&unescape($value);
5255: }
5256: }
5257: return 'ok';
1.792 raeburn 5258: }
1.841 albertel 5259:
5260: return $response;
1.792 raeburn 5261: }
5262:
1.777 albertel 5263: sub auto_validate_class_sec {
1.918 raeburn 5264: my ($cdom,$cnum,$owners,$inst_class) = @_;
1.773 raeburn 5265: my $homeserver = &homeserver($cnum,$cdom);
1.918 raeburn 5266: my $ownerlist;
5267: if (ref($owners) eq 'ARRAY') {
5268: $ownerlist = join(',',@{$owners});
5269: } else {
5270: $ownerlist = $owners;
5271: }
1.773 raeburn 5272: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.918 raeburn 5273: &escape($ownerlist).':'.$cdom,$homeserver);
1.773 raeburn 5274: return $response;
5275: }
5276:
1.679 raeburn 5277: # ------------------------------------------------------- Course Group routines
5278:
5279: sub get_coursegroups {
1.809 raeburn 5280: my ($cdom,$cnum,$group,$namespace) = @_;
5281: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 5282: }
5283:
1.679 raeburn 5284: sub modify_coursegroup {
5285: my ($cdom,$cnum,$groupsettings) = @_;
5286: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
5287: }
5288:
1.809 raeburn 5289: sub toggle_coursegroup_status {
5290: my ($cdom,$cnum,$group,$action) = @_;
5291: my ($from_namespace,$to_namespace);
5292: if ($action eq 'delete') {
5293: $from_namespace = 'coursegroups';
5294: $to_namespace = 'deleted_groups';
5295: } else {
5296: $from_namespace = 'deleted_groups';
5297: $to_namespace = 'coursegroups';
5298: }
5299: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 5300: if (my $tmp = &error(%curr_group)) {
5301: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
5302: return ('read error',$tmp);
5303: } else {
5304: my %savedsettings = %curr_group;
1.809 raeburn 5305: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 5306: my $deloutcome;
5307: if ($result eq 'ok') {
1.809 raeburn 5308: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 5309: } else {
5310: return ('write error',$result);
5311: }
5312: if ($deloutcome eq 'ok') {
5313: return 'ok';
5314: } else {
5315: return ('delete error',$deloutcome);
5316: }
5317: }
5318: }
5319:
1.679 raeburn 5320: sub modify_group_roles {
1.957 raeburn 5321: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs,$selfenroll,$context) = @_;
1.679 raeburn 5322: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
5323: my $role = 'gr/'.&escape($userprivs);
5324: my ($uname,$udom) = split(/:/,$user);
1.957 raeburn 5325: my $result = &assignrole($udom,$uname,$url,$role,$end,$start,'',$selfenroll,$context);
1.684 raeburn 5326: if ($result eq 'ok') {
5327: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
5328: }
1.679 raeburn 5329: return $result;
5330: }
5331:
5332: sub modify_coursegroup_membership {
5333: my ($cdom,$cnum,$membership) = @_;
5334: my $result = &put('groupmembership',$membership,$cdom,$cnum);
5335: return $result;
5336: }
5337:
1.682 raeburn 5338: sub get_active_groups {
5339: my ($udom,$uname,$cdom,$cnum) = @_;
5340: my $now = time;
5341: my %groups = ();
5342: foreach my $key (keys(%env)) {
1.811 albertel 5343: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 5344: my ($start,$end) = split(/\./,$env{$key});
5345: if (($end!=0) && ($end<$now)) { next; }
5346: if (($start!=0) && ($start>$now)) { next; }
5347: if ($1 eq $cdom && $2 eq $cnum) {
5348: $groups{$3} = $env{$key} ;
5349: }
5350: }
5351: }
5352: return %groups;
5353: }
5354:
1.683 raeburn 5355: sub get_group_membership {
5356: my ($cdom,$cnum,$group) = @_;
5357: return(&dump('groupmembership',$cdom,$cnum,$group));
5358: }
5359:
5360: sub get_users_groups {
5361: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 5362: my @usersgroups;
1.683 raeburn 5363: my $cachetime=1800;
5364:
5365: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 5366: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
5367: if (defined($cached)) {
1.734 albertel 5368: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 5369: } else {
5370: $grouplist = '';
1.816 raeburn 5371: my $courseurl = &courseid_to_courseurl($courseid);
5372: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 5373: my $access_end = $env{'course.'.$courseid.
5374: '.default_enrollment_end_date'};
5375: my $now = time;
5376: foreach my $key (keys(%roleshash)) {
5377: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
5378: my $group = $1;
5379: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
5380: my $start = $2;
5381: my $end = $1;
5382: if ($start == -1) { next; } # deleted from group
5383: if (($start!=0) && ($start>$now)) { next; }
5384: if (($end!=0) && ($end<$now)) {
5385: if ($access_end && $access_end < $now) {
5386: if ($access_end - $end < 86400) {
5387: push(@usersgroups,$group);
1.733 raeburn 5388: }
5389: }
1.817 raeburn 5390: next;
1.733 raeburn 5391: }
1.817 raeburn 5392: push(@usersgroups,$group);
1.683 raeburn 5393: }
5394: }
5395: }
1.817 raeburn 5396: @usersgroups = &sort_course_groups($courseid,@usersgroups);
5397: $grouplist = join(':',@usersgroups);
5398: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 5399: }
1.733 raeburn 5400: return @usersgroups;
1.683 raeburn 5401: }
5402:
5403: sub devalidate_getgroups_cache {
5404: my ($udom,$uname,$cdom,$cnum)=@_;
5405: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 5406:
1.683 raeburn 5407: my $hashid="$udom:$uname:$courseid";
5408: &devalidate_cache_new('getgroups',$hashid);
5409: }
5410:
1.12 www 5411: # ------------------------------------------------------------------ Plain Text
5412:
5413: sub plaintext {
1.742 raeburn 5414: my ($short,$type,$cid) = @_;
1.758 albertel 5415: if ($short =~ /^cr/) {
5416: return (split('/',$short))[-1];
5417: }
1.742 raeburn 5418: if (!defined($cid)) {
5419: $cid = $env{'request.course.id'};
5420: }
5421: if (defined($cid) && defined($env{'course.'.$cid.'.'.$short.'.plaintext'})) {
5422: return &Apache::lonlocal::mt($env{'course.'.$cid.'.'.$short.
5423: '.plaintext'});
5424: }
5425: my %rolenames = (
5426: Course => 'std',
5427: Group => 'alt1',
5428: );
5429: if (defined($type) &&
5430: defined($rolenames{$type}) &&
5431: defined($prp{$short}{$rolenames{$type}})) {
5432: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
5433: } else {
5434: return &Apache::lonlocal::mt($prp{$short}{'std'});
5435: }
1.12 www 5436: }
5437:
5438: # ----------------------------------------------------------------- Assign Role
5439:
5440: sub assignrole {
1.957 raeburn 5441: my ($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,
5442: $context)=@_;
1.21 www 5443: my $mrole;
5444: if ($role =~ /^cr\//) {
1.393 www 5445: my $cwosec=$url;
1.811 albertel 5446: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 5447: unless (&allowed('ccr',$cwosec)) {
1.104 www 5448: &logthis('Refused custom assignrole: '.
5449: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 5450: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 5451: return 'refused';
5452: }
1.21 www 5453: $mrole='cr';
1.678 raeburn 5454: } elsif ($role =~ /^gr\//) {
5455: my $cwogrp=$url;
1.811 albertel 5456: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 5457: unless (&allowed('mdg',$cwogrp)) {
5458: &logthis('Refused group assignrole: '.
5459: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
5460: $env{'user.name'}.' at '.$env{'user.domain'});
5461: return 'refused';
5462: }
5463: $mrole='gr';
1.21 www 5464: } else {
1.82 www 5465: my $cwosec=$url;
1.811 albertel 5466: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.932 raeburn 5467: if (!(&allowed('c'.$role,$cwosec)) && !(&allowed('c'.$role,$udom))) {
5468: my $refused;
5469: if (($env{'request.course.sec'} ne '') && ($role eq 'st')) {
5470: if (!(&allowed('c'.$role,$url))) {
5471: $refused = 1;
5472: }
5473: } else {
5474: $refused = 1;
5475: }
1.947 raeburn 5476: if ($refused) {
5477: if (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
5478: $refused = '';
5479: } else {
5480: &logthis('Refused assignrole: '.$udom.' '.$uname.' '.$url.
5481: ' '.$role.' '.$end.' '.$start.' by '.
5482: $env{'user.name'}.' at '.$env{'user.domain'});
5483: return 'refused';
5484: }
1.932 raeburn 5485: }
1.104 www 5486: }
1.21 www 5487: $mrole=$role;
5488: }
1.620 albertel 5489: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5490: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 5491: if ($end) { $command.='_'.$end; }
1.21 www 5492: if ($start) {
5493: if ($end) {
1.81 www 5494: $command.='_'.$start;
1.21 www 5495: } else {
1.81 www 5496: $command.='_0_'.$start;
1.21 www 5497: }
5498: }
1.739 raeburn 5499: my $origstart = $start;
5500: my $origend = $end;
1.957 raeburn 5501: my $delflag;
1.357 www 5502: # actually delete
5503: if ($deleteflag) {
1.373 www 5504: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 5505: # modify command to delete the role
1.620 albertel 5506: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 5507: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 5508: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 5509: # set start and finish to negative values for userrolelog
5510: $start=-1;
5511: $end=-1;
1.957 raeburn 5512: $delflag = 1;
1.357 www 5513: }
5514: }
5515: # send command
1.349 www 5516: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 5517: # log new user role if status is ok
1.349 www 5518: if ($answer eq 'ok') {
1.663 raeburn 5519: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 5520: # for course roles, perform group memberships changes triggered by role change.
1.957 raeburn 5521: &courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,$selfenroll,$context);
1.739 raeburn 5522: unless ($role =~ /^gr/) {
5523: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
1.957 raeburn 5524: $origstart,$selfenroll,$context);
1.739 raeburn 5525: }
1.349 www 5526: }
5527: return $answer;
1.169 harris41 5528: }
5529:
5530: # -------------------------------------------------- Modify user authentication
1.197 www 5531: # Overrides without validation
5532:
1.169 harris41 5533: sub modifyuserauth {
5534: my ($udom,$uname,$umode,$upass)=@_;
5535: my $uhome=&homeserver($uname,$udom);
1.197 www 5536: unless (&allowed('mau',$udom)) { return 'refused'; }
5537: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 5538: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
5539: ' in domain '.$env{'request.role.domain'});
1.169 harris41 5540: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
5541: &escape($upass),$uhome);
1.620 albertel 5542: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 5543: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
5544: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
5545: &log($udom,,$uname,$uhome,
1.620 albertel 5546: 'Authentication changed by '.$env{'user.domain'}.', '.
5547: $env{'user.name'}.', '.$umode.
1.197 www 5548: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 5549: unless ($reply eq 'ok') {
1.197 www 5550: &logthis('Authentication mode error: '.$reply);
1.169 harris41 5551: return 'error: '.$reply;
5552: }
1.170 harris41 5553: return 'ok';
1.80 www 5554: }
5555:
1.81 www 5556: # --------------------------------------------------------------- Modify a user
1.80 www 5557:
1.81 www 5558: sub modifyuser {
1.206 matthew 5559: my ($udom, $uname, $uid,
5560: $umode, $upass, $first,
5561: $middle, $last, $gene,
1.963 raeburn 5562: $forceid, $desiredhome, $email, $inststatus)=@_;
1.807 albertel 5563: $udom= &LONCAPA::clean_domain($udom);
5564: $uname=&LONCAPA::clean_username($uname);
1.81 www 5565: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 5566: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 5567: $last.', '.$gene.'(forceid: '.$forceid.')'.
5568: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
5569: ' desiredhome not specified').
1.620 albertel 5570: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
5571: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 5572: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 5573: # ----------------------------------------------------------------- Create User
1.406 albertel 5574: if (($uhome eq 'no_host') &&
5575: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 5576: my $unhome='';
1.844 albertel 5577: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 5578: $unhome = $desiredhome;
1.620 albertel 5579: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
5580: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 5581: } else { # load balancing routine for determining $unhome
1.81 www 5582: my $loadm=10000000;
1.841 albertel 5583: my %servers = &get_servers($udom,'library');
5584: foreach my $tryserver (keys(%servers)) {
5585: my $answer=reply('load',$tryserver);
5586: if (($answer=~/\d+/) && ($answer<$loadm)) {
5587: $loadm=$answer;
5588: $unhome=$tryserver;
5589: }
1.80 www 5590: }
5591: }
5592: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 5593: return 'error: unable to find a home server for '.$uname.
5594: ' in domain '.$udom;
1.80 www 5595: }
5596: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
5597: &escape($upass),$unhome);
5598: unless ($reply eq 'ok') {
5599: return 'error: '.$reply;
5600: }
1.230 stredwic 5601: $uhome=&homeserver($uname,$udom,'true');
1.80 www 5602: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 5603: return 'error: unable verify users home machine.';
1.80 www 5604: }
1.209 matthew 5605: } # End of creation of new user
1.80 www 5606: # ---------------------------------------------------------------------- Add ID
5607: if ($uid) {
5608: $uid=~tr/A-Z/a-z/;
5609: my %uidhash=&idrget($udom,$uname);
1.196 www 5610: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
5611: && (!$forceid)) {
1.80 www 5612: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 5613: return 'error: user id "'.$uid.'" does not match '.
5614: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 5615: }
5616: } else {
5617: &idput($udom,($uname => $uid));
5618: }
5619: }
5620: # -------------------------------------------------------------- Add names, etc
1.313 matthew 5621: my @tmp=&get('environment',
1.899 raeburn 5622: ['firstname','middlename','lastname','generation','id',
1.963 raeburn 5623: 'permanentemail','inststatus'],
1.134 albertel 5624: $udom,$uname);
1.313 matthew 5625: my %names;
5626: if ($tmp[0] =~ m/^error:.*/) {
5627: %names=();
5628: } else {
5629: %names = @tmp;
5630: }
1.388 www 5631: #
5632: # Make sure to not trash student environment if instructor does not bother
5633: # to supply name and email information
5634: #
5635: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 5636: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 5637: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 5638: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 5639: if ($email) {
5640: $email=~s/[^\w\@\.\-\,]//gs;
1.963 raeburn 5641: if ($email=~/\@/) { $names{'permanentemail'} = $email; }
1.592 www 5642: }
1.899 raeburn 5643: if ($uid) { $names{'id'} = $uid; }
1.963 raeburn 5644: if (defined($inststatus)) { $names{'inststatus'} = $inststatus; }
1.134 albertel 5645: my $reply = &put('environment', \%names, $udom,$uname);
5646: if ($reply ne 'ok') { return 'error: '.$reply; }
1.899 raeburn 5647: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
1.680 www 5648: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.963 raeburn 5649: my $logmsg = 'Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
5650: $umode.', '.$first.', '.$middle.', '.
5651: $last.', '.$gene.', '.$email.', '.$inststatus;
5652: if ($env{'user.name'} ne '' && $env{'user.domain'}) {
5653: $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
5654: } else {
5655: $logmsg .= ' during self creation';
5656: }
5657: &logthis($logmsg);
1.134 albertel 5658: return 'ok';
1.80 www 5659: }
5660:
1.81 www 5661: # -------------------------------------------------------------- Modify student
1.80 www 5662:
1.81 www 5663: sub modifystudent {
5664: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.957 raeburn 5665: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
5666: $selfenroll,$context)=@_;
1.455 albertel 5667: if (!$cid) {
1.620 albertel 5668: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5669: return 'not_in_class';
5670: }
1.80 www 5671: }
5672: # --------------------------------------------------------------- Make the user
1.81 www 5673: my $reply=&modifyuser
1.209 matthew 5674: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 5675: $desiredhome,$email);
1.80 www 5676: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 5677: # This will cause &modify_student_enrollment to get the uid from the
5678: # students environment
5679: $uid = undef if (!$forceid);
1.455 albertel 5680: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.957 raeburn 5681: $gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context);
1.297 matthew 5682: return $reply;
5683: }
5684:
5685: sub modify_student_enrollment {
1.957 raeburn 5686: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;
1.455 albertel 5687: my ($cdom,$cnum,$chome);
5688: if (!$cid) {
1.620 albertel 5689: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5690: return 'not_in_class';
5691: }
1.620 albertel 5692: $cdom=$env{'course.'.$cid.'.domain'};
5693: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 5694: } else {
5695: ($cdom,$cnum)=split(/_/,$cid);
5696: }
1.620 albertel 5697: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 5698: if (!$chome) {
1.457 raeburn 5699: $chome=&homeserver($cnum,$cdom);
1.297 matthew 5700: }
1.455 albertel 5701: if (!$chome) { return 'unknown_course'; }
1.297 matthew 5702: # Make sure the user exists
1.81 www 5703: my $uhome=&homeserver($uname,$udom);
5704: if (($uhome eq '') || ($uhome eq 'no_host')) {
5705: return 'error: no such user';
5706: }
1.297 matthew 5707: # Get student data if we were not given enough information
5708: if (!defined($first) || $first eq '' ||
5709: !defined($last) || $last eq '' ||
5710: !defined($uid) || $uid eq '' ||
5711: !defined($middle) || $middle eq '' ||
5712: !defined($gene) || $gene eq '') {
1.294 matthew 5713: # They did not supply us with enough data to enroll the student, so
5714: # we need to pick up more information.
1.297 matthew 5715: my %tmp = &get('environment',
1.294 matthew 5716: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 5717: ,$udom,$uname);
5718:
1.800 albertel 5719: #foreach my $key (keys(%tmp)) {
5720: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 5721: #}
1.294 matthew 5722: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
5723: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
5724: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 5725: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 5726: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
5727: }
1.556 albertel 5728: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 5729: my $reply=cput('classlist',
5730: {"$uname:$udom" =>
1.515 raeburn 5731: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 5732: $cdom,$cnum);
1.81 www 5733: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
5734: return 'error: '.$reply;
1.652 albertel 5735: } else {
5736: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 5737: }
1.297 matthew 5738: # Add student role to user
1.83 www 5739: my $uurl='/'.$cid;
1.81 www 5740: $uurl=~s/\_/\//g;
5741: if ($usec) {
5742: $uurl.='/'.$usec;
5743: }
1.957 raeburn 5744: return &assignrole($udom,$uname,$uurl,'st',$end,$start,undef,$selfenroll,$context);
1.21 www 5745: }
5746:
1.556 albertel 5747: sub format_name {
5748: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
5749: my $name;
5750: if ($first ne 'lastname') {
5751: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
5752: } else {
5753: if ($lastname=~/\S/) {
5754: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
5755: $name=~s/\s+,/,/;
5756: } else {
5757: $name.= $firstname.' '.$middlename.' '.$generation;
5758: }
5759: }
5760: $name=~s/^\s+//;
5761: $name=~s/\s+$//;
5762: $name=~s/\s+/ /g;
5763: return $name;
5764: }
5765:
1.84 www 5766: # ------------------------------------------------- Write to course preferences
5767:
5768: sub writecoursepref {
5769: my ($courseid,%prefs)=@_;
5770: $courseid=~s/^\///;
5771: $courseid=~s/\_/\//g;
5772: my ($cdomain,$cnum)=split(/\//,$courseid);
5773: my $chome=homeserver($cnum,$cdomain);
5774: if (($chome eq '') || ($chome eq 'no_host')) {
5775: return 'error: no such course';
5776: }
5777: my $cstring='';
1.800 albertel 5778: foreach my $pref (keys(%prefs)) {
5779: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 5780: }
1.84 www 5781: $cstring=~s/\&$//;
5782: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
5783: }
5784:
5785: # ---------------------------------------------------------- Make/modify course
5786:
5787: sub createcourse {
1.741 raeburn 5788: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
5789: $course_owner,$crstype)=@_;
1.84 www 5790: $url=&declutter($url);
5791: my $cid='';
1.264 matthew 5792: unless (&allowed('ccc',$udom)) {
1.84 www 5793: return 'refused';
5794: }
5795: # ------------------------------------------------------------------- Create ID
1.674 www 5796: my $uname=int(1+rand(9)).
5797: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
5798: substr($$.time,0,5).unpack("H8",pack("I32",time)).
1.84 www 5799: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
5800: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 5801: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 5802: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5803: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
5804: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 5805: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5806: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5807: return 'error: unable to generate unique course-ID';
5808: }
5809: }
1.264 matthew 5810: # ------------------------------------------------ Check supplied server name
1.620 albertel 5811: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 5812: if (! &is_library($course_server)) {
1.264 matthew 5813: return 'error:bad server name '.$course_server;
5814: }
1.84 www 5815: # ------------------------------------------------------------- Make the course
5816: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 5817: $course_server);
1.84 www 5818: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 5819: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5820: if (($uhome eq '') || ($uhome eq 'no_host')) {
5821: return 'error: no such course';
5822: }
1.271 www 5823: # ----------------------------------------------------------------- Course made
1.516 raeburn 5824: # log existence
1.918 raeburn 5825: my $newcourse = {
5826: $udom.'_'.$uname => {
1.921 raeburn 5827: description => $description,
5828: inst_code => $inst_code,
5829: owner => $course_owner,
5830: type => $crstype,
1.918 raeburn 5831: },
5832: };
1.921 raeburn 5833: &courseidput($udom,$newcourse,$uhome,'notime');
1.358 www 5834: # set toplevel url
1.271 www 5835: my $topurl=$url;
5836: unless ($nonstandard) {
5837: # ------------------------------------------ For standard courses, make top url
5838: my $mapurl=&clutter($url);
1.278 www 5839: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 5840: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 5841: <map>
5842: <resource id="1" type="start"></resource>
5843: <resource id="2" src="$mapurl"></resource>
5844: <resource id="3" type="finish"></resource>
5845: <link index="1" from="1" to="2"></link>
5846: <link index="2" from="2" to="3"></link>
5847: </map>
5848: ENDINITMAP
5849: $topurl=&declutter(
1.638 albertel 5850: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 5851: );
5852: }
5853: # ----------------------------------------------------------- Write preferences
1.84 www 5854: &writecoursepref($udom.'_'.$uname,
5855: ('description' => $description,
1.271 www 5856: 'url' => $topurl));
1.84 www 5857: return '/'.$udom.'/'.$uname;
5858: }
5859:
1.813 albertel 5860: sub is_course {
5861: my ($cdom,$cnum) = @_;
5862: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
1.946 raeburn 5863: undef,'.');
1.813 albertel 5864: if (exists($courses{$cdom.'_'.$cnum})) {
5865: return 1;
5866: }
5867: return 0;
5868: }
5869:
1.21 www 5870: # ---------------------------------------------------------- Assign Custom Role
5871:
5872: sub assigncustomrole {
1.957 raeburn 5873: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag,$selfenroll,$context)=@_;
1.21 www 5874: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.957 raeburn 5875: $end,$start,$deleteflag,$selfenroll,$context);
1.21 www 5876: }
5877:
5878: # ----------------------------------------------------------------- Revoke Role
5879:
5880: sub revokerole {
1.957 raeburn 5881: my ($udom,$uname,$url,$role,$deleteflag,$selfenroll,$context)=@_;
1.21 www 5882: my $now=time;
1.965 raeburn 5883: return &assignrole($udom,$uname,$url,$role,$now,undef,$deleteflag,$selfenroll,$context);
1.21 www 5884: }
5885:
5886: # ---------------------------------------------------------- Revoke Custom Role
5887:
5888: sub revokecustomrole {
1.957 raeburn 5889: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag,$selfenroll,$context)=@_;
1.21 www 5890: my $now=time;
1.357 www 5891: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
1.957 raeburn 5892: $deleteflag,$selfenroll,$context);
1.17 www 5893: }
5894:
1.533 banghart 5895: # ------------------------------------------------------------ Disk usage
1.535 albertel 5896: sub diskusage {
1.955 raeburn 5897: my ($udom,$uname,$directorypath,$getpropath)=@_;
5898: $directorypath =~ s/\/$//;
5899: my $listing=&reply('du2:'.&escape($directorypath).':'
5900: .&escape($getpropath).':'.&escape($uname).':'
5901: .&escape($udom),homeserver($uname,$udom));
5902: if ($listing eq 'unknown_cmd') {
5903: if ($getpropath) {
5904: $directorypath = &propath($udom,$uname).'/'.$directorypath;
5905: }
5906: $listing = &reply('du:'.$directorypath,homeserver($uname,$udom));
5907: }
1.514 albertel 5908: return $listing;
1.512 banghart 5909: }
5910:
1.566 banghart 5911: sub is_locked {
5912: my ($file_name, $domain, $user) = @_;
5913: my @check;
5914: my $is_locked;
5915: push @check, $file_name;
1.613 albertel 5916: my %locked = &get('file_permissions',\@check,
1.620 albertel 5917: $env{'user.domain'},$env{'user.name'});
1.615 albertel 5918: my ($tmp)=keys(%locked);
5919: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 5920:
1.566 banghart 5921: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 5922: $is_locked = 'false';
5923: foreach my $entry (@{$locked{$file_name}}) {
5924: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 5925: $is_locked = 'true';
5926: last;
1.745 raeburn 5927: }
5928: }
1.566 banghart 5929: } else {
5930: $is_locked = 'false';
5931: }
5932: }
5933:
1.759 albertel 5934: sub declutter_portfile {
5935: my ($file) = @_;
1.833 albertel 5936: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 5937: return $file;
5938: }
5939:
1.559 banghart 5940: # ------------------------------------------------------------- Mark as Read Only
5941:
5942: sub mark_as_readonly {
5943: my ($domain,$user,$files,$what) = @_;
1.613 albertel 5944: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 5945: my ($tmp)=keys(%current_permissions);
5946: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 5947: foreach my $file (@{$files}) {
1.759 albertel 5948: $file = &declutter_portfile($file);
1.561 banghart 5949: push(@{$current_permissions{$file}},$what);
1.559 banghart 5950: }
1.613 albertel 5951: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5952: return;
5953: }
5954:
1.572 banghart 5955: # ------------------------------------------------------------Save Selected Files
5956:
5957: sub save_selected_files {
5958: my ($user, $path, @files) = @_;
5959: my $filename = $user."savedfiles";
1.573 banghart 5960: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 5961: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 5962: foreach my $file (@files) {
1.620 albertel 5963: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 5964: }
5965: foreach my $file (@other_files) {
1.574 banghart 5966: print (OUT $file."\n");
1.572 banghart 5967: }
1.574 banghart 5968: close (OUT);
1.572 banghart 5969: return 'ok';
5970: }
5971:
1.574 banghart 5972: sub clear_selected_files {
5973: my ($user) = @_;
5974: my $filename = $user."savedfiles";
5975: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
5976: print (OUT undef);
5977: close (OUT);
5978: return ("ok");
5979: }
5980:
1.572 banghart 5981: sub files_in_path {
5982: my ($user, $path) = @_;
5983: my $filename = $user."savedfiles";
5984: my %return_files;
1.574 banghart 5985: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 5986: while (my $line_in = <IN>) {
1.574 banghart 5987: chomp ($line_in);
5988: my @paths_and_file = split (m!/!, $line_in);
5989: my $file_part = pop (@paths_and_file);
5990: my $path_part = join ('/', @paths_and_file);
1.573 banghart 5991: $path_part.='/';
5992: my $path_and_file = $path_part.$file_part;
5993: if ($path_part eq $path) {
5994: $return_files{$file_part}= 'selected';
5995: }
5996: }
1.574 banghart 5997: close (IN);
5998: return (\%return_files);
1.572 banghart 5999: }
6000:
6001: # called in portfolio select mode, to show files selected NOT in current directory
6002: sub files_not_in_path {
6003: my ($user, $path) = @_;
6004: my $filename = $user."savedfiles";
6005: my @return_files;
6006: my $path_part;
1.800 albertel 6007: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
6008: while (my $line = <IN>) {
1.572 banghart 6009: #ok, I know it's clunky, but I want it to work
1.800 albertel 6010: my @paths_and_file = split(m|/|, $line);
6011: my $file_part = pop(@paths_and_file);
6012: chomp($file_part);
6013: my $path_part = join('/', @paths_and_file);
1.572 banghart 6014: $path_part .= '/';
6015: my $path_and_file = $path_part.$file_part;
6016: if ($path_part ne $path) {
1.800 albertel 6017: push(@return_files, ($path_and_file));
1.572 banghart 6018: }
6019: }
1.800 albertel 6020: close(OUT);
1.574 banghart 6021: return (@return_files);
1.572 banghart 6022: }
6023:
1.745 raeburn 6024: #----------------------------------------------Get portfolio file permissions
1.629 banghart 6025:
1.745 raeburn 6026: sub get_portfile_permissions {
6027: my ($domain,$user) = @_;
1.613 albertel 6028: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 6029: my ($tmp)=keys(%current_permissions);
6030: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6031: return \%current_permissions;
6032: }
6033:
6034: #---------------------------------------------Get portfolio file access controls
6035:
1.749 raeburn 6036: sub get_access_controls {
1.745 raeburn 6037: my ($current_permissions,$group,$file) = @_;
1.769 albertel 6038: my %access;
6039: my $real_file = $file;
6040: $file =~ s/\.meta$//;
1.745 raeburn 6041: if (defined($file)) {
1.749 raeburn 6042: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
6043: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 6044: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 6045: }
6046: }
1.745 raeburn 6047: } else {
1.749 raeburn 6048: foreach my $key (keys(%{$current_permissions})) {
6049: if ($key =~ /\0accesscontrol$/) {
6050: if (defined($group)) {
6051: if ($key !~ m-^\Q$group\E/-) {
6052: next;
6053: }
6054: }
6055: my ($fullpath) = split(/\0/,$key);
6056: if (ref($$current_permissions{$key}) eq 'HASH') {
6057: foreach my $control (keys(%{$$current_permissions{$key}})) {
6058: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
6059: }
6060: }
6061: }
6062: }
6063: }
6064: return %access;
6065: }
6066:
6067: sub modify_access_controls {
6068: my ($file_name,$changes,$domain,$user)=@_;
6069: my ($outcome,$deloutcome);
6070: my %store_permissions;
6071: my %new_values;
6072: my %new_control;
6073: my %translation;
6074: my @deletions = ();
6075: my $now = time;
6076: if (exists($$changes{'activate'})) {
6077: if (ref($$changes{'activate'}) eq 'HASH') {
6078: my @newitems = sort(keys(%{$$changes{'activate'}}));
6079: my $numnew = scalar(@newitems);
6080: for (my $i=0; $i<$numnew; $i++) {
6081: my $newkey = $newitems[$i];
6082: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 6083: if ($newkey =~ /^\d+:/) {
6084: $newkey =~ s/^(\d+)/$newid/;
6085: $translation{$1} = $newid;
6086: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
6087: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
6088: $translation{$1} = $newid;
6089: }
1.749 raeburn 6090: $new_values{$file_name."\0".$newkey} =
6091: $$changes{'activate'}{$newitems[$i]};
6092: $new_control{$newkey} = $now;
6093: }
6094: }
6095: }
6096: my %todelete;
6097: my %changed_items;
6098: foreach my $action ('delete','update') {
6099: if (exists($$changes{$action})) {
6100: if (ref($$changes{$action}) eq 'HASH') {
6101: foreach my $key (keys(%{$$changes{$action}})) {
6102: my ($itemnum) = ($key =~ /^([^:]+):/);
6103: if ($action eq 'delete') {
6104: $todelete{$itemnum} = 1;
6105: } else {
6106: $changed_items{$itemnum} = $key;
6107: }
6108: }
1.745 raeburn 6109: }
6110: }
1.749 raeburn 6111: }
6112: # get lock on access controls for file.
6113: my $lockhash = {
6114: $file_name."\0".'locked_access_records' => $env{'user.name'}.
6115: ':'.$env{'user.domain'},
6116: };
6117: my $tries = 0;
6118: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6119:
6120: while (($gotlock ne 'ok') && $tries <3) {
6121: $tries ++;
6122: sleep 1;
6123: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
6124: }
6125: if ($gotlock eq 'ok') {
6126: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
6127: my ($tmp)=keys(%curr_permissions);
6128: if ($tmp=~/^error:/) { undef(%curr_permissions); }
6129: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
6130: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
6131: if (ref($curr_controls) eq 'HASH') {
6132: foreach my $control_item (keys(%{$curr_controls})) {
6133: my ($itemnum) = ($control_item =~ /^([^:]+):/);
6134: if (defined($todelete{$itemnum})) {
6135: push(@deletions,$file_name."\0".$control_item);
6136: } else {
6137: if (defined($changed_items{$itemnum})) {
6138: $new_control{$changed_items{$itemnum}} = $now;
6139: push(@deletions,$file_name."\0".$control_item);
6140: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
6141: } else {
6142: $new_control{$control_item} = $$curr_controls{$control_item};
6143: }
6144: }
1.745 raeburn 6145: }
6146: }
6147: }
1.749 raeburn 6148: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
6149: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
6150: $outcome = &put('file_permissions',\%new_values,$domain,$user);
6151: # remove lock
6152: my @del_lock = ($file_name."\0".'locked_access_records');
6153: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 6154: my ($file,$group);
6155: if (&is_course($domain,$user)) {
6156: ($group,$file) = split(/\//,$file_name,2);
6157: } else {
6158: $file = $file_name;
6159: }
6160: my $sqlresult =
6161: &update_portfolio_table($user,$domain,$file,'portfolio_access',
6162: $group);
1.749 raeburn 6163: } else {
6164: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 6165: }
1.749 raeburn 6166: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 6167: }
6168:
1.827 raeburn 6169: sub make_public_indefinitely {
6170: my ($requrl) = @_;
6171: my $now = time;
6172: my $action = 'activate';
6173: my $aclnum = 0;
6174: if (&is_portfolio_url($requrl)) {
6175: my (undef,$udom,$unum,$file_name,$group) =
6176: &parse_portfolio_url($requrl);
6177: my $current_perms = &get_portfile_permissions($udom,$unum);
6178: my %access_controls = &get_access_controls($current_perms,
6179: $group,$file_name);
6180: foreach my $key (keys(%{$access_controls{$file_name}})) {
6181: my ($num,$scope,$end,$start) =
6182: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
6183: if ($scope eq 'public') {
6184: if ($start <= $now && $end == 0) {
6185: $action = 'none';
6186: } else {
6187: $action = 'update';
6188: $aclnum = $num;
6189: }
6190: last;
6191: }
6192: }
6193: if ($action eq 'none') {
6194: return 'ok';
6195: } else {
6196: my %changes;
6197: my $newend = 0;
6198: my $newstart = $now;
6199: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
6200: $changes{$action}{$newkey} = {
6201: type => 'public',
6202: time => {
6203: start => $newstart,
6204: end => $newend,
6205: },
6206: };
6207: my ($outcome,$deloutcome,$new_values,$translation) =
6208: &modify_access_controls($file_name,\%changes,$udom,$unum);
6209: return $outcome;
6210: }
6211: } else {
6212: return 'invalid';
6213: }
6214: }
6215:
1.745 raeburn 6216: #------------------------------------------------------Get Marked as Read Only
6217:
6218: sub get_marked_as_readonly {
6219: my ($domain,$user,$what,$group) = @_;
6220: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 6221: my @readonly_files;
1.629 banghart 6222: my $cmp1=$what;
6223: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 6224: while (my ($file_name,$value) = each(%{$current_permissions})) {
6225: if (defined($group)) {
6226: if ($file_name !~ m-^\Q$group\E/-) {
6227: next;
6228: }
6229: }
1.561 banghart 6230: if (ref($value) eq "ARRAY"){
6231: foreach my $stored_what (@{$value}) {
1.629 banghart 6232: my $cmp2=$stored_what;
1.759 albertel 6233: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 6234: $cmp2=join('',@{$stored_what});
1.745 raeburn 6235: }
1.629 banghart 6236: if ($cmp1 eq $cmp2) {
1.561 banghart 6237: push(@readonly_files, $file_name);
1.745 raeburn 6238: last;
1.563 banghart 6239: } elsif (!defined($what)) {
6240: push(@readonly_files, $file_name);
1.745 raeburn 6241: last;
1.561 banghart 6242: }
6243: }
1.745 raeburn 6244: }
1.561 banghart 6245: }
6246: return @readonly_files;
6247: }
1.577 banghart 6248: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 6249:
1.577 banghart 6250: sub get_marked_as_readonly_hash {
1.745 raeburn 6251: my ($current_permissions,$group,$what) = @_;
1.577 banghart 6252: my %readonly_files;
1.745 raeburn 6253: while (my ($file_name,$value) = each(%{$current_permissions})) {
6254: if (defined($group)) {
6255: if ($file_name !~ m-^\Q$group\E/-) {
6256: next;
6257: }
6258: }
1.577 banghart 6259: if (ref($value) eq "ARRAY"){
6260: foreach my $stored_what (@{$value}) {
1.745 raeburn 6261: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 6262: foreach my $lock_descriptor(@{$stored_what}) {
6263: if ($lock_descriptor eq 'graded') {
6264: $readonly_files{$file_name} = 'graded';
6265: } elsif ($lock_descriptor eq 'handback') {
6266: $readonly_files{$file_name} = 'handback';
6267: } else {
6268: if (!exists($readonly_files{$file_name})) {
6269: $readonly_files{$file_name} = 'locked';
6270: }
6271: }
1.745 raeburn 6272: }
1.750 banghart 6273: }
1.577 banghart 6274: }
6275: }
6276: }
6277: return %readonly_files;
6278: }
1.559 banghart 6279: # ------------------------------------------------------------ Unmark as Read Only
6280:
6281: sub unmark_as_readonly {
1.629 banghart 6282: # unmarks $file_name (if $file_name is defined), or all files locked by $what
6283: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 6284: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 6285: $file_name = &declutter_portfile($file_name);
1.634 albertel 6286: my $symb_crs = $what;
6287: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 6288: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 6289: my ($tmp)=keys(%current_permissions);
6290: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 6291: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 6292: foreach my $file (@readonly_files) {
1.759 albertel 6293: my $clean_file = &declutter_portfile($file);
6294: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 6295: my $current_locks = $current_permissions{$file};
1.563 banghart 6296: my @new_locks;
6297: my @del_keys;
6298: if (ref($current_locks) eq "ARRAY"){
6299: foreach my $locker (@{$current_locks}) {
1.632 albertel 6300: my $compare=$locker;
1.749 raeburn 6301: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 6302: $compare=join('',@{$locker});
1.746 raeburn 6303: if ($compare ne $symb_crs) {
6304: push(@new_locks, $locker);
6305: }
1.563 banghart 6306: }
6307: }
1.650 albertel 6308: if (scalar(@new_locks) > 0) {
1.563 banghart 6309: $current_permissions{$file} = \@new_locks;
6310: } else {
6311: push(@del_keys, $file);
1.613 albertel 6312: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 6313: delete($current_permissions{$file});
1.563 banghart 6314: }
6315: }
1.561 banghart 6316: }
1.613 albertel 6317: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 6318: return;
6319: }
1.512 banghart 6320:
1.17 www 6321: # ------------------------------------------------------------ Directory lister
6322:
6323: sub dirlist {
1.955 raeburn 6324: my ($uri,$userdomain,$username,$getpropath,$getuserdir,$alternateRoot)=@_;
1.18 www 6325: $uri=~s/^\///;
6326: $uri=~s/\/$//;
1.253 stredwic 6327: my ($udom, $uname);
1.955 raeburn 6328: if ($getuserdir) {
1.253 stredwic 6329: $udom = $userdomain;
6330: $uname = $username;
1.955 raeburn 6331: } else {
6332: (undef,$udom,$uname)=split(/\//,$uri);
6333: if(defined($userdomain)) {
6334: $udom = $userdomain;
6335: }
6336: if(defined($username)) {
6337: $uname = $username;
6338: }
1.253 stredwic 6339: }
1.955 raeburn 6340: my ($dirRoot,$listing,@listing_results);
1.253 stredwic 6341:
1.955 raeburn 6342: $dirRoot = $perlvar{'lonDocRoot'};
6343: if (defined($getpropath)) {
6344: $dirRoot = &propath($udom,$uname);
1.253 stredwic 6345: $dirRoot =~ s/\/$//;
1.955 raeburn 6346: } elsif (defined($getuserdir)) {
6347: my $subdir=$uname.'__';
6348: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
6349: $dirRoot = $Apache::lonnet::perlvar{'lonUsersDir'}
6350: ."/$udom/$subdir/$uname";
6351: } elsif (defined($alternateRoot)) {
6352: $dirRoot = $alternateRoot;
1.751 banghart 6353: }
1.253 stredwic 6354:
6355: if($udom) {
6356: if($uname) {
1.955 raeburn 6357: $listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
1.956 raeburn 6358: .$getuserdir.':'.&escape($dirRoot)
1.955 raeburn 6359: .':'.&escape($uname).':'.&escape($udom),
6360: &homeserver($uname,$udom));
6361: if ($listing eq 'unknown_cmd') {
6362: $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
6363: &homeserver($uname,$udom));
6364: } else {
6365: @listing_results = map { &unescape($_); } split(/:/,$listing);
6366: }
1.605 matthew 6367: if ($listing eq 'unknown_cmd') {
1.800 albertel 6368: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
6369: &homeserver($uname,$udom));
1.605 matthew 6370: @listing_results = split(/:/,$listing);
6371: } else {
6372: @listing_results = map { &unescape($_); } split(/:/,$listing);
6373: }
6374: return @listing_results;
1.955 raeburn 6375: } elsif(!$alternateRoot) {
1.800 albertel 6376: my %allusers;
1.841 albertel 6377: my %servers = &get_servers($udom,'library');
1.955 raeburn 6378: foreach my $tryserver (keys(%servers)) {
6379: $listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
6380: &escape($udom),$tryserver);
6381: if ($listing eq 'unknown_cmd') {
6382: $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
6383: $udom, $tryserver);
6384: } else {
6385: @listing_results = map { &unescape($_); } split(/:/,$listing);
6386: }
1.841 albertel 6387: if ($listing eq 'unknown_cmd') {
6388: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
6389: $udom, $tryserver);
6390: @listing_results = split(/:/,$listing);
6391: } else {
6392: @listing_results =
6393: map { &unescape($_); } split(/:/,$listing);
6394: }
6395: if ($listing_results[0] ne 'no_such_dir' &&
6396: $listing_results[0] ne 'empty' &&
6397: $listing_results[0] ne 'con_lost') {
6398: foreach my $line (@listing_results) {
6399: my ($entry) = split(/&/,$line,2);
6400: $allusers{$entry} = 1;
6401: }
6402: }
1.253 stredwic 6403: }
6404: my $alluserstr='';
1.800 albertel 6405: foreach my $user (sort(keys(%allusers))) {
6406: $alluserstr.=$user.'&user:';
1.253 stredwic 6407: }
6408: $alluserstr=~s/:$//;
6409: return split(/:/,$alluserstr);
6410: } else {
1.800 albertel 6411: return ('missing user name');
1.253 stredwic 6412: }
1.955 raeburn 6413: } elsif(!defined($getpropath)) {
1.841 albertel 6414: my @all_domains = sort(&all_domains());
1.955 raeburn 6415: foreach my $domain (@all_domains) {
6416: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
6417: }
6418: return @all_domains;
6419: } else {
1.800 albertel 6420: return ('missing domain');
1.275 stredwic 6421: }
6422: }
6423:
6424: # --------------------------------------------- GetFileTimestamp
6425: # This function utilizes dirlist and returns the date stamp for
6426: # when it was last modified. It will also return an error of -1
6427: # if an error occurs
6428:
6429: sub GetFileTimestamp {
1.955 raeburn 6430: my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
1.807 albertel 6431: $studentDomain = &LONCAPA::clean_domain($studentDomain);
6432: $studentName = &LONCAPA::clean_username($studentName);
1.955 raeburn 6433: my ($fileStat) =
6434: &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
6435: undef,$getuserdir);
1.275 stredwic 6436: my @stats = split('&', $fileStat);
6437: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 6438: # @stats contains first the filename, then the stat output
6439: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 6440: } else {
6441: return -1;
1.253 stredwic 6442: }
1.26 www 6443: }
6444:
1.712 albertel 6445: sub stat_file {
6446: my ($uri) = @_;
1.787 albertel 6447: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 6448:
1.955 raeburn 6449: my ($udom,$uname,$file);
1.712 albertel 6450: if ($uri =~ m-^/(uploaded|editupload)/-) {
6451: ($udom,$uname,$file) =
1.811 albertel 6452: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 6453: $file = 'userfiles/'.$file;
6454: }
6455: if ($uri =~ m-^/res/-) {
6456: ($udom,$uname) =
1.807 albertel 6457: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 6458: $file = $uri;
6459: }
6460:
6461: if (!$udom || !$uname || !$file) {
6462: # unable to handle the uri
6463: return ();
6464: }
1.956 raeburn 6465: my $getpropath;
6466: if ($file =~ /^userfiles\//) {
6467: $getpropath = 1;
6468: }
1.955 raeburn 6469: my ($result) = &dirlist($file,$udom,$uname,$getpropath);
1.712 albertel 6470: my @stats = split('&', $result);
1.721 banghart 6471:
1.712 albertel 6472: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
6473: shift(@stats); #filename is first
6474: return @stats;
6475: }
6476: return ();
6477: }
6478:
1.26 www 6479: # -------------------------------------------------------- Value of a Condition
6480:
1.713 albertel 6481: # gets the value of a specific preevaluated condition
6482: # stored in the string $env{user.state.<cid>}
6483: # or looks up a condition reference in the bighash and if if hasn't
6484: # already been evaluated recurses into docondval to get the value of
6485: # the condition, then memoizing it to
6486: # $env{user.state.<cid>.<condition>}
1.40 www 6487: sub directcondval {
6488: my $number=shift;
1.620 albertel 6489: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 6490: &Apache::lonuserstate::evalstate();
6491: }
1.713 albertel 6492: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
6493: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
6494: } elsif ($number =~ /^_/) {
6495: my $sub_condition;
6496: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
6497: &GDBM_READER(),0640)) {
6498: $sub_condition=$bighash{'conditions'.$number};
6499: untie(%bighash);
6500: }
6501: my $value = &docondval($sub_condition);
1.949 raeburn 6502: &appenv({'user.state.'.$env{'request.course.id'}.".$number" => $value});
1.713 albertel 6503: return $value;
6504: }
1.620 albertel 6505: if ($env{'user.state.'.$env{'request.course.id'}}) {
6506: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 6507: } else {
6508: return 2;
6509: }
6510: }
6511:
1.713 albertel 6512: # get the collection of conditions for this resource
1.26 www 6513: sub condval {
6514: my $condidx=shift;
1.54 www 6515: my $allpathcond='';
1.713 albertel 6516: foreach my $cond (split(/\|/,$condidx)) {
6517: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
6518: $allpathcond.=
6519: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
6520: }
1.191 harris41 6521: }
1.54 www 6522: $allpathcond=~s/\|$//;
1.713 albertel 6523: return &docondval($allpathcond);
6524: }
6525:
6526: #evaluates an expression of conditions
6527: sub docondval {
6528: my ($allpathcond) = @_;
6529: my $result=0;
6530: if ($env{'request.course.id'}
6531: && defined($allpathcond)) {
6532: my $operand='|';
6533: my @stack;
6534: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
6535: if ($chunk eq '(') {
6536: push @stack,($operand,$result);
6537: } elsif ($chunk eq ')') {
6538: my $before=pop @stack;
6539: if (pop @stack eq '&') {
6540: $result=$result>$before?$before:$result;
6541: } else {
6542: $result=$result>$before?$result:$before;
6543: }
6544: } elsif (($chunk eq '&') || ($chunk eq '|')) {
6545: $operand=$chunk;
6546: } else {
6547: my $new=directcondval($chunk);
6548: if ($operand eq '&') {
6549: $result=$result>$new?$new:$result;
6550: } else {
6551: $result=$result>$new?$result:$new;
6552: }
6553: }
6554: }
1.26 www 6555: }
6556: return $result;
1.421 albertel 6557: }
6558:
6559: # ---------------------------------------------------- Devalidate courseresdata
6560:
6561: sub devalidatecourseresdata {
6562: my ($coursenum,$coursedomain)=@_;
6563: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 6564: &devalidate_cache_new('courseres',$hashid);
1.28 www 6565: }
6566:
1.763 www 6567:
1.200 www 6568: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 6569: #
6570: # Parameters:
6571: # $coursenum - Number of the course.
6572: # $coursedomain - Domain at which the course was created.
6573: # Returns:
6574: # A hash of the course parameters along (I think) with timestamps
6575: # and version info.
1.877 foxr 6576:
1.624 albertel 6577: sub get_courseresdata {
6578: my ($coursenum,$coursedomain)=@_;
1.200 www 6579: my $coursehom=&homeserver($coursenum,$coursedomain);
6580: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 6581: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 6582: my %dumpreply;
1.417 albertel 6583: unless (defined($cached)) {
1.624 albertel 6584: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 6585: $result=\%dumpreply;
1.251 albertel 6586: my ($tmp) = keys(%dumpreply);
6587: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 6588: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 6589: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
6590: return $tmp;
1.416 albertel 6591: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 6592: $result=undef;
1.599 albertel 6593: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 6594: }
6595: }
1.624 albertel 6596: return $result;
6597: }
6598:
1.633 albertel 6599: sub devalidateuserresdata {
6600: my ($uname,$udom)=@_;
6601: my $hashid="$udom:$uname";
6602: &devalidate_cache_new('userres',$hashid);
6603: }
6604:
1.624 albertel 6605: sub get_userresdata {
6606: my ($uname,$udom)=@_;
6607: #most student don\'t have any data set, check if there is some data
6608: if (&EXT_cache_status($udom,$uname)) { return undef; }
6609:
6610: my $hashid="$udom:$uname";
6611: my ($result,$cached)=&is_cached_new('userres',$hashid);
6612: if (!defined($cached)) {
6613: my %resourcedata=&dump('resourcedata',$udom,$uname);
6614: $result=\%resourcedata;
6615: &do_cache_new('userres',$hashid,$result,600);
6616: }
6617: my ($tmp)=keys(%$result);
6618: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
6619: return $result;
6620: }
6621: #error 2 occurs when the .db doesn't exist
6622: if ($tmp!~/error: 2 /) {
1.672 albertel 6623: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 6624: " Trying to get resource data for ".
6625: $uname." at ".$udom.": ".
6626: $tmp."</font>");
6627: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 6628: #&EXT_cache_set($udom,$uname);
6629: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 6630: undef($tmp); # not really an error so don't send it back
1.624 albertel 6631: }
6632: return $tmp;
6633: }
1.879 foxr 6634: #----------------------------------------------- resdata - return resource data
6635: # Purpose:
6636: # Return resource data for either users or for a course.
6637: # Parameters:
6638: # $name - Course/user name.
6639: # $domain - Name of the domain the user/course is registered on.
6640: # $type - Type of thing $name is (must be 'course' or 'user'
6641: # @which - Array of names of resources desired.
6642: # Returns:
6643: # The value of the first reasource in @which that is found in the
6644: # resource hash.
6645: # Exceptional Conditions:
6646: # If the $type passed in is not valid (not the string 'course' or
6647: # 'user', an undefined reference is returned.
6648: # If none of the resources are found, an undef is returned
1.624 albertel 6649: sub resdata {
6650: my ($name,$domain,$type,@which)=@_;
6651: my $result;
6652: if ($type eq 'course') {
6653: $result=&get_courseresdata($name,$domain);
6654: } elsif ($type eq 'user') {
6655: $result=&get_userresdata($name,$domain);
6656: }
6657: if (!ref($result)) { return $result; }
1.251 albertel 6658: foreach my $item (@which) {
1.927 albertel 6659: if (defined($result->{$item->[0]})) {
6660: return [$result->{$item->[0]},$item->[1]];
1.251 albertel 6661: }
1.250 albertel 6662: }
1.291 albertel 6663: return undef;
1.200 www 6664: }
6665:
1.379 matthew 6666: #
6667: # EXT resource caching routines
6668: #
6669:
6670: sub clear_EXT_cache_status {
1.383 albertel 6671: &delenv('cache.EXT.');
1.379 matthew 6672: }
6673:
6674: sub EXT_cache_status {
6675: my ($target_domain,$target_user) = @_;
1.383 albertel 6676: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 6677: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 6678: # We know already the user has no data
6679: return 1;
6680: } else {
6681: return 0;
6682: }
6683: }
6684:
6685: sub EXT_cache_set {
6686: my ($target_domain,$target_user) = @_;
1.383 albertel 6687: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.949 raeburn 6688: #&appenv({$cachename => time});
1.379 matthew 6689: }
6690:
1.28 www 6691: # --------------------------------------------------------- Value of a Variable
1.58 www 6692: sub EXT {
1.715 albertel 6693:
1.395 albertel 6694: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 6695: unless ($varname) { return ''; }
1.218 albertel 6696: #get real user name/domain, courseid and symb
6697: my $courseid;
1.359 albertel 6698: my $publicuser;
1.427 www 6699: if ($symbparm) {
6700: $symbparm=&get_symb_from_alias($symbparm);
6701: }
1.218 albertel 6702: if (!($uname && $udom)) {
1.790 albertel 6703: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 6704: if (!$symbparm) { $symbparm=$cursymb; }
6705: } else {
1.620 albertel 6706: $courseid=$env{'request.course.id'};
1.218 albertel 6707: }
1.48 www 6708: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
6709: my $rest;
1.320 albertel 6710: if (defined($therest[0])) {
1.48 www 6711: $rest=join('.',@therest);
6712: } else {
6713: $rest='';
6714: }
1.320 albertel 6715:
1.57 www 6716: my $qualifierrest=$qualifier;
6717: if ($rest) { $qualifierrest.='.'.$rest; }
6718: my $spacequalifierrest=$space;
6719: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 6720: if ($realm eq 'user') {
1.48 www 6721: # --------------------------------------------------------------- user.resource
6722: if ($space eq 'resource') {
1.651 albertel 6723: if ( (defined($Apache::lonhomework::parsing_a_problem)
6724: || defined($Apache::lonhomework::parsing_a_task))
6725: &&
1.744 albertel 6726: ($symbparm eq &symbread()) ) {
6727: # if we are in the middle of processing the resource the
6728: # get the value we are planning on committing
6729: if (defined($Apache::lonhomework::results{$qualifierrest})) {
6730: return $Apache::lonhomework::results{$qualifierrest};
6731: } else {
6732: return $Apache::lonhomework::history{$qualifierrest};
6733: }
1.335 albertel 6734: } else {
1.359 albertel 6735: my %restored;
1.620 albertel 6736: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 6737: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
6738: } else {
6739: %restored=&restore($symbparm,$courseid,$udom,$uname);
6740: }
1.335 albertel 6741: return $restored{$qualifierrest};
6742: }
1.48 www 6743: # ----------------------------------------------------------------- user.access
6744: } elsif ($space eq 'access') {
1.218 albertel 6745: # FIXME - not supporting calls for a specific user
1.48 www 6746: return &allowed($qualifier,$rest);
6747: # ------------------------------------------ user.preferences, user.environment
6748: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 6749: if (($uname eq $env{'user.name'}) &&
6750: ($udom eq $env{'user.domain'})) {
6751: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 6752: } else {
1.359 albertel 6753: my %returnhash;
6754: if (!$publicuser) {
6755: %returnhash=&userenvironment($udom,$uname,
6756: $qualifierrest);
6757: }
1.218 albertel 6758: return $returnhash{$qualifierrest};
6759: }
1.48 www 6760: # ----------------------------------------------------------------- user.course
6761: } elsif ($space eq 'course') {
1.218 albertel 6762: # FIXME - not supporting calls for a specific user
1.620 albertel 6763: return $env{join('.',('request.course',$qualifier))};
1.48 www 6764: # ------------------------------------------------------------------- user.role
6765: } elsif ($space eq 'role') {
1.218 albertel 6766: # FIXME - not supporting calls for a specific user
1.620 albertel 6767: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 6768: if ($qualifier eq 'value') {
6769: return $role;
6770: } elsif ($qualifier eq 'extent') {
6771: return $where;
6772: }
6773: # ----------------------------------------------------------------- user.domain
6774: } elsif ($space eq 'domain') {
1.218 albertel 6775: return $udom;
1.48 www 6776: # ------------------------------------------------------------------- user.name
6777: } elsif ($space eq 'name') {
1.218 albertel 6778: return $uname;
1.48 www 6779: # ---------------------------------------------------- Any other user namespace
1.29 www 6780: } else {
1.359 albertel 6781: my %reply;
6782: if (!$publicuser) {
6783: %reply=&get($space,[$qualifierrest],$udom,$uname);
6784: }
6785: return $reply{$qualifierrest};
1.48 www 6786: }
1.236 www 6787: } elsif ($realm eq 'query') {
6788: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 6789: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
6790: [$spacequalifierrest]);
1.620 albertel 6791: return $env{'form.'.$spacequalifierrest};
1.236 www 6792: } elsif ($realm eq 'request') {
1.48 www 6793: # ------------------------------------------------------------- request.browser
6794: if ($space eq 'browser') {
1.430 www 6795: if ($qualifier eq 'textremote') {
1.676 albertel 6796: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 6797: return 1;
6798: } else {
6799: return 0;
6800: }
6801: } else {
1.620 albertel 6802: return $env{'browser.'.$qualifier};
1.430 www 6803: }
1.57 www 6804: # ------------------------------------------------------------ request.filename
6805: } else {
1.620 albertel 6806: return $env{'request.'.$spacequalifierrest};
1.29 www 6807: }
1.28 www 6808: } elsif ($realm eq 'course') {
1.48 www 6809: # ---------------------------------------------------------- course.description
1.620 albertel 6810: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 6811: } elsif ($realm eq 'resource') {
1.165 www 6812:
1.620 albertel 6813: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 6814: if (!$symbparm) { $symbparm=&symbread(); }
6815: }
1.693 albertel 6816:
6817: if ($space eq 'title') {
6818: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
6819: return &gettitle($symbparm);
6820: }
6821:
6822: if ($space eq 'map') {
6823: my ($map) = &decode_symb($symbparm);
6824: return &symbread($map);
6825: }
1.905 albertel 6826: if ($space eq 'filename') {
6827: if ($symbparm) {
6828: return &clutter((&decode_symb($symbparm))[2]);
6829: }
6830: return &hreflocation('',$env{'request.filename'});
6831: }
1.693 albertel 6832:
6833: my ($section, $group, @groups);
1.593 albertel 6834: my ($courselevelm,$courselevel);
1.539 albertel 6835: if ($symbparm && defined($courseid) &&
1.620 albertel 6836: $courseid eq $env{'request.course.id'}) {
1.165 www 6837:
1.218 albertel 6838: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 6839:
1.60 www 6840: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 6841: my $symbp=$symbparm;
1.735 albertel 6842: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 6843:
6844: my $symbparm=$symbp.'.'.$spacequalifierrest;
6845: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
6846:
1.620 albertel 6847: if (($env{'user.name'} eq $uname) &&
6848: ($env{'user.domain'} eq $udom)) {
6849: $section=$env{'request.course.sec'};
1.733 raeburn 6850: @groups = split(/:/,$env{'request.course.groups'});
6851: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 6852: } else {
1.539 albertel 6853: if (! defined($usection)) {
1.551 albertel 6854: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 6855: } else {
6856: $section = $usection;
6857: }
1.733 raeburn 6858: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 6859: }
6860:
6861: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
6862: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
6863: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
6864:
1.593 albertel 6865: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 6866: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 6867: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 6868:
1.60 www 6869: # ----------------------------------------------------------- first, check user
1.624 albertel 6870:
6871: my $userreply=&resdata($uname,$udom,'user',
1.927 albertel 6872: ([$courselevelr,'resource'],
6873: [$courselevelm,'map' ],
6874: [$courselevel, 'course' ]));
1.931 albertel 6875: if (defined($userreply)) { return &get_reply($userreply); }
1.95 www 6876:
1.594 albertel 6877: # ------------------------------------------------ second, check some of course
1.684 raeburn 6878: my $coursereply;
1.691 raeburn 6879: if (@groups > 0) {
6880: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
6881: $mapparm,$spacequalifierrest);
1.927 albertel 6882: if (defined($coursereply)) { return &get_reply($coursereply); }
1.684 raeburn 6883: }
1.96 www 6884:
1.684 raeburn 6885: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.927 albertel 6886: $env{'course.'.$courseid.'.domain'},
6887: 'course',
6888: ([$seclevelr, 'resource'],
6889: [$seclevelm, 'map' ],
6890: [$seclevel, 'course' ],
6891: [$courselevelr,'resource']));
6892: if (defined($coursereply)) { return &get_reply($coursereply); }
1.200 www 6893:
1.60 www 6894: # ------------------------------------------------------ third, check map parms
1.218 albertel 6895: my %parmhash=();
6896: my $thisparm='';
6897: if (tie(%parmhash,'GDBM_File',
1.620 albertel 6898: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 6899: &GDBM_READER(),0640)) {
1.218 albertel 6900: $thisparm=$parmhash{$symbparm};
6901: untie(%parmhash);
6902: }
1.927 albertel 6903: if ($thisparm) { return &get_reply([$thisparm,'resource']); }
1.218 albertel 6904: }
1.594 albertel 6905: # ------------------------------------------ fourth, look in resource metadata
1.71 www 6906:
1.218 albertel 6907: $spacequalifierrest=~s/\./\_/;
1.282 albertel 6908: my $filename;
6909: if (!$symbparm) { $symbparm=&symbread(); }
6910: if ($symbparm) {
1.409 www 6911: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 6912: } else {
1.620 albertel 6913: $filename=$env{'request.filename'};
1.282 albertel 6914: }
6915: my $metadata=&metadata($filename,$spacequalifierrest);
1.927 albertel 6916: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.282 albertel 6917: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.927 albertel 6918: if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
1.142 www 6919:
1.927 albertel 6920: # ---------------------------------------------- fourth, look in rest of course
1.593 albertel 6921: if ($symbparm && defined($courseid) &&
1.620 albertel 6922: $courseid eq $env{'request.course.id'}) {
1.624 albertel 6923: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
6924: $env{'course.'.$courseid.'.domain'},
6925: 'course',
1.927 albertel 6926: ([$courselevelm,'map' ],
6927: [$courselevel, 'course']));
6928: if (defined($coursereply)) { return &get_reply($coursereply); }
1.593 albertel 6929: }
1.145 www 6930: # ------------------------------------------------------------------ Cascade up
1.218 albertel 6931: unless ($space eq '0') {
1.336 albertel 6932: my @parts=split(/_/,$space);
6933: my $id=pop(@parts);
6934: my $part=join('_',@parts);
6935: if ($part eq '') { $part='0'; }
1.927 albertel 6936: my @partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 6937: $symbparm,$udom,$uname,$section,1);
1.938 raeburn 6938: if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
1.218 albertel 6939: }
1.395 albertel 6940: if ($recurse) { return undef; }
6941: my $pack_def=&packages_tab_default($filename,$varname);
1.927 albertel 6942: if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
1.48 www 6943: # ---------------------------------------------------- Any other user namespace
6944: } elsif ($realm eq 'environment') {
6945: # ----------------------------------------------------------------- environment
1.620 albertel 6946: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
6947: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 6948: } else {
1.770 albertel 6949: if ($uname eq 'anonymous' && $udom eq '') {
6950: return '';
6951: }
1.219 albertel 6952: my %returnhash=&userenvironment($udom,$uname,
6953: $spacequalifierrest);
6954: return $returnhash{$spacequalifierrest};
6955: }
1.28 www 6956: } elsif ($realm eq 'system') {
1.48 www 6957: # ----------------------------------------------------------------- system.time
6958: if ($space eq 'time') {
6959: return time;
6960: }
1.696 albertel 6961: } elsif ($realm eq 'server') {
6962: # ----------------------------------------------------------------- system.time
6963: if ($space eq 'name') {
6964: return $ENV{'SERVER_NAME'};
6965: }
1.28 www 6966: }
1.48 www 6967: return '';
1.61 www 6968: }
6969:
1.927 albertel 6970: sub get_reply {
6971: my ($reply_value) = @_;
1.940 raeburn 6972: if (ref($reply_value) eq 'ARRAY') {
6973: if (wantarray) {
6974: return @$reply_value;
6975: }
6976: return $reply_value->[0];
6977: } else {
6978: return $reply_value;
1.927 albertel 6979: }
6980: }
6981:
1.691 raeburn 6982: sub check_group_parms {
6983: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
6984: my @groupitems = ();
6985: my $resultitem;
1.927 albertel 6986: my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);
1.691 raeburn 6987: foreach my $group (@{$groups}) {
6988: foreach my $level (@levels) {
1.927 albertel 6989: my $item = $courseid.'.['.$group.'].'.$level->[0];
6990: push(@groupitems,[$item,$level->[1]]);
1.691 raeburn 6991: }
6992: }
6993: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
6994: $env{'course.'.$courseid.'.domain'},
6995: 'course',@groupitems);
6996: return $coursereply;
6997: }
6998:
6999: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 7000: my ($courseid,@groups) = @_;
7001: @groups = sort(@groups);
1.691 raeburn 7002: return @groups;
7003: }
7004:
1.395 albertel 7005: sub packages_tab_default {
7006: my ($uri,$varname)=@_;
7007: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 7008:
7009: my (@extension,@specifics,$do_default);
7010: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 7011: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 7012: if ($pack_type eq 'default') {
7013: $do_default=1;
7014: } elsif ($pack_type eq 'extension') {
7015: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 7016: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 7017: # only look at packages defaults for packages that this id is
1.738 albertel 7018: push(@specifics,[$package,$pack_type,$pack_part]);
7019: }
7020: }
7021: # first look for a package that matches the requested part id
7022: foreach my $package (@specifics) {
7023: my (undef,$pack_type,$pack_part)=@{$package};
7024: next if ($pack_part ne $part);
7025: if (defined($packagetab{"$pack_type&$name&default"})) {
7026: return $packagetab{"$pack_type&$name&default"};
7027: }
7028: }
7029: # look for any possible matching non extension_ package
7030: foreach my $package (@specifics) {
7031: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 7032: if (defined($packagetab{"$pack_type&$name&default"})) {
7033: return $packagetab{"$pack_type&$name&default"};
7034: }
1.585 albertel 7035: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 7036: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
7037: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 7038: }
7039: }
1.738 albertel 7040: # look for any posible extension_ match
7041: foreach my $package (@extension) {
7042: my ($package,$pack_type)=@{$package};
7043: if (defined($packagetab{"$pack_type&$name&default"})) {
7044: return $packagetab{"$pack_type&$name&default"};
7045: }
7046: if (defined($packagetab{$package."&$name&default"})) {
7047: return $packagetab{$package."&$name&default"};
7048: }
7049: }
7050: # look for a global default setting
7051: if ($do_default && defined($packagetab{"default&$name&default"})) {
7052: return $packagetab{"default&$name&default"};
7053: }
1.395 albertel 7054: return undef;
7055: }
7056:
1.334 albertel 7057: sub add_prefix_and_part {
7058: my ($prefix,$part)=@_;
7059: my $keyroot;
7060: if (defined($prefix) && $prefix !~ /^__/) {
7061: # prefix that has a part already
7062: $keyroot=$prefix;
7063: } elsif (defined($prefix)) {
7064: # prefix that is missing a part
7065: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
7066: } else {
7067: # no prefix at all
7068: if (defined($part)) { $keyroot='_'.$part; }
7069: }
7070: return $keyroot;
7071: }
7072:
1.71 www 7073: # ---------------------------------------------------------------- Get metadata
7074:
1.599 albertel 7075: my %metaentry;
1.71 www 7076: sub metadata {
1.176 www 7077: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 7078: $uri=&declutter($uri);
1.288 albertel 7079: # if it is a non metadata possible uri return quickly
1.529 albertel 7080: if (($uri eq '') ||
7081: (($uri =~ m|^/*adm/|) &&
1.698 albertel 7082: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.924 albertel 7083: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) ) {
7084: return undef;
7085: }
7086: if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
7087: && &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
1.468 albertel 7088: return undef;
1.288 albertel 7089: }
1.73 www 7090: my $filename=$uri;
7091: $uri=~s/\.meta$//;
1.172 www 7092: #
7093: # Is the metadata already cached?
1.177 www 7094: # Look at timestamp of caching
1.172 www 7095: # Everything is cached by the main uri, libraries are never directly cached
7096: #
1.428 albertel 7097: if (!defined($liburi)) {
1.599 albertel 7098: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 7099: if (defined($cached)) { return $result->{':'.$what}; }
7100: }
7101: {
1.172 www 7102: #
7103: # Is this a recursive call for a library?
7104: #
1.599 albertel 7105: # if (! exists($metacache{$uri})) {
7106: # $metacache{$uri}={};
7107: # }
1.924 albertel 7108: my $cachetime = 60*60;
1.171 www 7109: if ($liburi) {
7110: $liburi=&declutter($liburi);
7111: $filename=$liburi;
1.401 bowersj2 7112: } else {
1.599 albertel 7113: &devalidate_cache_new('meta',$uri);
7114: undef(%metaentry);
1.401 bowersj2 7115: }
1.140 www 7116: my %metathesekeys=();
1.73 www 7117: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 7118: my $metastring;
1.924 albertel 7119: if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
1.929 albertel 7120: my $which = &hreflocation('','/'.($liburi || $uri));
1.924 albertel 7121: $metastring =
1.929 albertel 7122: &Apache::lonnet::ssi_body($which,
1.924 albertel 7123: ('grade_target' => 'meta'));
7124: $cachetime = 1; # only want this cached in the child not long term
7125: } elsif ($uri !~ m -^(editupload)/-) {
1.543 albertel 7126: my $file=&filelocation('',&clutter($filename));
1.599 albertel 7127: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 7128: $metastring=&getfile($file);
1.489 albertel 7129: }
1.208 albertel 7130: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 7131: my $token;
1.140 www 7132: undef %metathesekeys;
1.71 www 7133: while ($token=$parser->get_token) {
1.339 albertel 7134: if ($token->[0] eq 'S') {
7135: if (defined($token->[2]->{'package'})) {
1.172 www 7136: #
7137: # This is a package - get package info
7138: #
1.339 albertel 7139: my $package=$token->[2]->{'package'};
7140: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7141: if (defined($token->[2]->{'id'})) {
7142: $keyroot.='_'.$token->[2]->{'id'};
7143: }
1.599 albertel 7144: if ($metaentry{':packages'}) {
7145: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 7146: } else {
1.599 albertel 7147: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 7148: }
1.736 albertel 7149: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 7150: my $part=$keyroot;
7151: $part=~s/^\_//;
1.736 albertel 7152: if ($pack_entry=~/^\Q$package\E\&/ ||
7153: $pack_entry=~/^\Q$package\E_0\&/) {
7154: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 7155: # ignore package.tab specified default values
7156: # here &package_tab_default() will fetch those
7157: if ($subp eq 'default') { next; }
1.736 albertel 7158: my $value=$packagetab{$pack_entry};
1.432 albertel 7159: my $unikey;
7160: if ($pack =~ /_0$/) {
7161: $unikey='parameter_0_'.$name;
7162: $part=0;
7163: } else {
7164: $unikey='parameter'.$keyroot.'_'.$name;
7165: }
1.339 albertel 7166: if ($subp eq 'display') {
7167: $value.=' [Part: '.$part.']';
7168: }
1.599 albertel 7169: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 7170: $metathesekeys{$unikey}=1;
1.599 albertel 7171: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7172: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 7173: }
1.599 albertel 7174: if (defined($metaentry{':'.$unikey.'.default'})) {
7175: $metaentry{':'.$unikey}=
7176: $metaentry{':'.$unikey.'.default'};
1.356 albertel 7177: }
1.339 albertel 7178: }
7179: }
7180: } else {
1.172 www 7181: #
7182: # This is not a package - some other kind of start tag
1.339 albertel 7183: #
7184: my $entry=$token->[1];
7185: my $unikey;
7186: if ($entry eq 'import') {
7187: $unikey='';
7188: } else {
7189: $unikey=$entry;
7190: }
7191: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
7192:
7193: if (defined($token->[2]->{'id'})) {
7194: $unikey.='_'.$token->[2]->{'id'};
7195: }
1.175 www 7196:
1.339 albertel 7197: if ($entry eq 'import') {
1.175 www 7198: #
7199: # Importing a library here
1.339 albertel 7200: #
7201: if ($depthcount<20) {
7202: my $location=$parser->get_text('/import');
7203: my $dir=$filename;
7204: $dir=~s|[^/]*$||;
7205: $location=&filelocation($dir,$location);
1.736 albertel 7206: my $metadata =
7207: &metadata($uri,'keys', $location,$unikey,
7208: $depthcount+1);
7209: foreach my $meta (split(',',$metadata)) {
7210: $metaentry{':'.$meta}=$metaentry{':'.$meta};
7211: $metathesekeys{$meta}=1;
1.339 albertel 7212: }
7213: }
7214: } else {
7215:
7216: if (defined($token->[2]->{'name'})) {
7217: $unikey.='_'.$token->[2]->{'name'};
7218: }
7219: $metathesekeys{$unikey}=1;
1.736 albertel 7220: foreach my $param (@{$token->[3]}) {
7221: $metaentry{':'.$unikey.'.'.$param} =
7222: $token->[2]->{$param};
1.339 albertel 7223: }
7224: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 7225: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 7226: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
7227: # only ws inside the tag, and not in default, so use default
7228: # as value
1.599 albertel 7229: $metaentry{':'.$unikey}=$default;
1.908 albertel 7230: } elsif ( $internaltext =~ /\S/ ) {
7231: # something interesting inside the tag
7232: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 7233: } else {
1.908 albertel 7234: # no interesting values, don't set a default
1.339 albertel 7235: }
1.172 www 7236: # end of not-a-package not-a-library import
1.339 albertel 7237: }
1.172 www 7238: # end of not-a-package start tag
1.339 albertel 7239: }
1.172 www 7240: # the next is the end of "start tag"
1.339 albertel 7241: }
7242: }
1.483 albertel 7243: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 7244: $extension = lc($extension);
7245: if ($extension eq 'htm') { $extension='html'; }
7246:
1.737 albertel 7247: foreach my $key (keys(%packagetab)) {
1.483 albertel 7248: #no specific packages #how's our extension
7249: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 7250: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 7251: \%metathesekeys);
7252: }
1.883 albertel 7253:
7254: if (!exists($metaentry{':packages'})
7255: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 7256: foreach my $key (keys(%packagetab)) {
1.483 albertel 7257: #no specific packages well let's get default then
7258: if ($key!~/^default&/) { next; }
1.488 albertel 7259: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 7260: \%metathesekeys);
7261: }
7262: }
1.338 www 7263: # are there custom rights to evaluate
1.599 albertel 7264: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 7265:
1.338 www 7266: #
7267: # Importing a rights file here
1.339 albertel 7268: #
7269: unless ($depthcount) {
1.599 albertel 7270: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 7271: my $dir=$filename;
7272: $dir=~s|[^/]*$||;
7273: $location=&filelocation($dir,$location);
1.736 albertel 7274: my $rights_metadata =
7275: &metadata($uri,'keys',$location,'_rights',
7276: $depthcount+1);
7277: foreach my $rights (split(',',$rights_metadata)) {
7278: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
7279: $metathesekeys{$rights}=1;
1.339 albertel 7280: }
7281: }
7282: }
1.737 albertel 7283: # uniqifiy package listing
7284: my %seen;
7285: my @uniq_packages =
7286: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
7287: $metaentry{':packages'} = join(',',@uniq_packages);
7288:
7289: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 7290: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
7291: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.924 albertel 7292: &do_cache_new('meta',$uri,\%metaentry,$cachetime);
1.177 www 7293: # this is the end of "was not already recently cached
1.71 www 7294: }
1.599 albertel 7295: return $metaentry{':'.$what};
1.261 albertel 7296: }
7297:
1.488 albertel 7298: sub metadata_create_package_def {
1.483 albertel 7299: my ($uri,$key,$package,$metathesekeys)=@_;
7300: my ($pack,$name,$subp)=split(/\&/,$key);
7301: if ($subp eq 'default') { next; }
7302:
1.599 albertel 7303: if (defined($metaentry{':packages'})) {
7304: $metaentry{':packages'}.=','.$package;
1.483 albertel 7305: } else {
1.599 albertel 7306: $metaentry{':packages'}=$package;
1.483 albertel 7307: }
7308: my $value=$packagetab{$key};
7309: my $unikey;
7310: $unikey='parameter_0_'.$name;
1.599 albertel 7311: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 7312: $$metathesekeys{$unikey}=1;
1.599 albertel 7313: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
7314: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 7315: }
1.599 albertel 7316: if (defined($metaentry{':'.$unikey.'.default'})) {
7317: $metaentry{':'.$unikey}=
7318: $metaentry{':'.$unikey.'.default'};
1.483 albertel 7319: }
7320: }
7321:
1.261 albertel 7322: sub metadata_generate_part0 {
7323: my ($metadata,$metacache,$uri) = @_;
7324: my %allnames;
1.737 albertel 7325: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 7326: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 7327: my $part=$$metacache{':'.$metakey.'.part'};
7328: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 7329: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 7330: $allnames{$name}=$part;
7331: }
7332: }
7333: }
7334: foreach my $name (keys(%allnames)) {
7335: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 7336: my $key=":parameter_0_$name";
1.261 albertel 7337: $$metacache{"$key.part"}='0';
7338: $$metacache{"$key.name"}=$name;
1.428 albertel 7339: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 7340: $allnames{$name}.'_'.$name.
7341: '.type'};
1.428 albertel 7342: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 7343: '.display'};
1.644 www 7344: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 7345: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 7346: $$metacache{"$key.display"}=$olddis;
7347: }
1.71 www 7348: }
7349:
1.764 albertel 7350: # ------------------------------------------------------ Devalidate title cache
7351:
7352: sub devalidate_title_cache {
7353: my ($url)=@_;
7354: if (!$env{'request.course.id'}) { return; }
7355: my $symb=&symbread($url);
7356: if (!$symb) { return; }
7357: my $key=$env{'request.course.id'}."\0".$symb;
7358: &devalidate_cache_new('title',$key);
7359: }
7360:
1.301 www 7361: # ------------------------------------------------- Get the title of a resource
7362:
7363: sub gettitle {
7364: my $urlsymb=shift;
7365: my $symb=&symbread($urlsymb);
1.534 albertel 7366: if ($symb) {
1.620 albertel 7367: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 7368: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 7369: if (defined($cached)) {
7370: return $result;
7371: }
1.534 albertel 7372: my ($map,$resid,$url)=&decode_symb($symb);
7373: my $title='';
1.907 albertel 7374: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
7375: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
7376: } else {
7377: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
7378: &GDBM_READER(),0640)) {
7379: my $mapid=$bighash{'map_pc_'.&clutter($map)};
7380: $title=$bighash{'title_'.$mapid.'.'.$resid};
7381: untie(%bighash);
7382: }
1.534 albertel 7383: }
7384: $title=~s/\&colon\;/\:/gs;
7385: if ($title) {
1.599 albertel 7386: return &do_cache_new('title',$key,$title,600);
1.534 albertel 7387: }
7388: $urlsymb=$url;
7389: }
7390: my $title=&metadata($urlsymb,'title');
7391: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
7392: return $title;
1.301 www 7393: }
1.613 albertel 7394:
1.614 albertel 7395: sub get_slot {
7396: my ($which,$cnum,$cdom)=@_;
7397: if (!$cnum || !$cdom) {
1.790 albertel 7398: (undef,my $courseid)=&whichuser();
1.620 albertel 7399: $cdom=$env{'course.'.$courseid.'.domain'};
7400: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 7401: }
1.703 albertel 7402: my $key=join("\0",'slots',$cdom,$cnum,$which);
7403: my %slotinfo;
7404: if (exists($remembered{$key})) {
7405: $slotinfo{$which} = $remembered{$key};
7406: } else {
7407: %slotinfo=&get('slots',[$which],$cdom,$cnum);
7408: &Apache::lonhomework::showhash(%slotinfo);
7409: my ($tmp)=keys(%slotinfo);
7410: if ($tmp=~/^error:/) { return (); }
7411: $remembered{$key} = $slotinfo{$which};
7412: }
1.616 albertel 7413: if (ref($slotinfo{$which}) eq 'HASH') {
7414: return %{$slotinfo{$which}};
7415: }
7416: return $slotinfo{$which};
1.614 albertel 7417: }
1.31 www 7418: # ------------------------------------------------- Update symbolic store links
7419:
7420: sub symblist {
7421: my ($mapname,%newhash)=@_;
1.438 www 7422: $mapname=&deversion(&declutter($mapname));
1.31 www 7423: my %hash;
1.620 albertel 7424: if (($env{'request.course.fn'}) && (%newhash)) {
7425: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 7426: &GDBM_WRCREAT(),0640)) {
1.711 albertel 7427: foreach my $url (keys %newhash) {
7428: next if ($url eq 'last_known'
7429: && $env{'form.no_update_last_known'});
7430: $hash{declutter($url)}=&encode_symb($mapname,
7431: $newhash{$url}->[1],
7432: $newhash{$url}->[0]);
1.191 harris41 7433: }
1.31 www 7434: if (untie(%hash)) {
7435: return 'ok';
7436: }
7437: }
7438: }
7439: return 'error';
1.212 www 7440: }
7441:
7442: # --------------------------------------------------------------- Verify a symb
7443:
7444: sub symbverify {
1.510 www 7445: my ($symb,$thisurl)=@_;
7446: my $thisfn=$thisurl;
1.439 www 7447: $thisfn=&declutter($thisfn);
1.215 www 7448: # direct jump to resource in page or to a sequence - will construct own symbs
7449: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
7450: # check URL part
1.409 www 7451: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 7452:
1.431 www 7453: unless ($url eq $thisfn) { return 0; }
1.213 www 7454:
1.216 www 7455: $symb=&symbclean($symb);
1.510 www 7456: $thisurl=&deversion($thisurl);
1.439 www 7457: $thisfn=&deversion($thisfn);
1.213 www 7458:
7459: my %bighash;
7460: my $okay=0;
1.431 www 7461:
1.620 albertel 7462: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 7463: &GDBM_READER(),0640)) {
1.510 www 7464: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 7465: unless ($ids) {
1.510 www 7466: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 7467: }
7468: if ($ids) {
7469: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 7470: foreach my $id (split(/\,/,$ids)) {
7471: my ($mapid,$resid)=split(/\./,$id);
1.216 www 7472: if (
7473: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
7474: eq $symb) {
1.620 albertel 7475: if (($env{'request.role.adv'}) ||
1.800 albertel 7476: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 7477: $okay=1;
7478: }
7479: }
1.216 www 7480: }
7481: }
1.213 www 7482: untie(%bighash);
7483: }
7484: return $okay;
1.31 www 7485: }
7486:
1.210 www 7487: # --------------------------------------------------------------- Clean-up symb
7488:
7489: sub symbclean {
7490: my $symb=shift;
1.568 albertel 7491: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 7492: # remove version from map
7493: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 7494:
1.210 www 7495: # remove version from URL
7496: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 7497:
1.507 www 7498: # remove wrapper
7499:
1.510 www 7500: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 7501: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 7502: return $symb;
1.409 www 7503: }
7504:
7505: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 7506:
7507: sub encode_symb {
7508: my ($map,$resid,$url)=@_;
7509: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
7510: }
1.409 www 7511:
7512: sub decode_symb {
1.568 albertel 7513: my $symb=shift;
7514: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
7515: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 7516: return (&fixversion($map),$resid,&fixversion($url));
7517: }
7518:
7519: sub fixversion {
7520: my $fn=shift;
1.609 banghart 7521: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 7522: my %bighash;
7523: my $uri=&clutter($fn);
1.620 albertel 7524: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 7525: # is this cached?
1.599 albertel 7526: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 7527: if (defined($cached)) { return $result; }
7528: # unfortunately not cached, or expired
1.620 albertel 7529: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 7530: &GDBM_READER(),0640)) {
7531: if ($bighash{'version_'.$uri}) {
7532: my $version=$bighash{'version_'.$uri};
1.444 www 7533: unless (($version eq 'mostrecent') ||
7534: ($version==&getversion($uri))) {
1.440 www 7535: $uri=~s/\.(\w+)$/\.$version\.$1/;
7536: }
7537: }
7538: untie %bighash;
1.413 www 7539: }
1.599 albertel 7540: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 7541: }
7542:
7543: sub deversion {
7544: my $url=shift;
7545: $url=~s/\.\d+\.(\w+)$/\.$1/;
7546: return $url;
1.210 www 7547: }
7548:
1.31 www 7549: # ------------------------------------------------------ Return symb list entry
7550:
7551: sub symbread {
1.249 www 7552: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 7553: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 7554: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 7555: # no filename provided? try from environment
1.44 www 7556: unless ($thisfn) {
1.620 albertel 7557: if ($env{'request.symb'}) {
7558: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 7559: }
1.620 albertel 7560: $thisfn=$env{'request.filename'};
1.44 www 7561: }
1.569 albertel 7562: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 7563: # is that filename actually a symb? Verify, clean, and return
7564: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 7565: if (&symbverify($thisfn,$1)) {
1.620 albertel 7566: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 7567: }
1.242 www 7568: }
1.44 www 7569: $thisfn=declutter($thisfn);
1.31 www 7570: my %hash;
1.37 www 7571: my %bighash;
7572: my $syval='';
1.620 albertel 7573: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 7574: my $targetfn = $thisfn;
1.609 banghart 7575: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 7576: $targetfn = 'adm/wrapper/'.$thisfn;
7577: }
1.687 albertel 7578: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
7579: $targetfn=$1;
7580: }
1.620 albertel 7581: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 7582: &GDBM_READER(),0640)) {
1.481 raeburn 7583: $syval=$hash{$targetfn};
1.37 www 7584: untie(%hash);
7585: }
7586: # ---------------------------------------------------------- There was an entry
7587: if ($syval) {
1.601 albertel 7588: #unless ($syval=~/\_\d+$/) {
1.620 albertel 7589: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.949 raeburn 7590: #&appenv({'request.ambiguous' => $thisfn});
1.620 albertel 7591: #return $env{$cache_str}='';
1.601 albertel 7592: #}
7593: #$syval.=$1;
7594: #}
1.37 www 7595: } else {
7596: # ------------------------------------------------------- Was not in symb table
1.620 albertel 7597: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 7598: &GDBM_READER(),0640)) {
1.37 www 7599: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 7600: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 7601: unless ($ids) {
7602: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 7603: }
7604: unless ($ids) {
7605: # alias?
7606: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 7607: }
1.37 www 7608: if ($ids) {
7609: # ------------------------------------------------------------------- Has ID(s)
7610: my @possibilities=split(/\,/,$ids);
1.39 www 7611: if ($#possibilities==0) {
7612: # ----------------------------------------------- There is only one possibility
1.37 www 7613: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 7614: $syval=&encode_symb($bighash{'map_id_'.$mapid},
7615: $resid,$thisfn);
1.249 www 7616: } elsif (!$donotrecurse) {
1.39 www 7617: # ------------------------------------------ There is more than one possibility
7618: my $realpossible=0;
1.800 albertel 7619: foreach my $id (@possibilities) {
7620: my $file=$bighash{'src_'.$id};
1.39 www 7621: if (&allowed('bre',$file)) {
1.800 albertel 7622: my ($mapid,$resid)=split(/\./,$id);
1.39 www 7623: if ($bighash{'map_type_'.$mapid} ne 'page') {
7624: $realpossible++;
1.626 albertel 7625: $syval=&encode_symb($bighash{'map_id_'.$mapid},
7626: $resid,$thisfn);
1.39 www 7627: }
7628: }
1.191 harris41 7629: }
1.39 www 7630: if ($realpossible!=1) { $syval=''; }
1.249 www 7631: } else {
7632: $syval='';
1.37 www 7633: }
7634: }
7635: untie(%bighash)
1.481 raeburn 7636: }
1.31 www 7637: }
1.62 www 7638: if ($syval) {
1.620 albertel 7639: return $env{$cache_str}=$syval;
1.62 www 7640: }
1.31 www 7641: }
1.949 raeburn 7642: &appenv({'request.ambiguous' => $thisfn});
1.620 albertel 7643: return $env{$cache_str}='';
1.31 www 7644: }
7645:
7646: # ---------------------------------------------------------- Return random seed
7647:
1.32 www 7648: sub numval {
7649: my $txt=shift;
7650: $txt=~tr/A-J/0-9/;
7651: $txt=~tr/a-j/0-9/;
7652: $txt=~tr/K-T/0-9/;
7653: $txt=~tr/k-t/0-9/;
7654: $txt=~tr/U-Z/0-5/;
7655: $txt=~tr/u-z/0-5/;
7656: $txt=~s/\D//g;
1.564 albertel 7657: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 7658: return int($txt);
1.368 albertel 7659: }
7660:
1.484 albertel 7661: sub numval2 {
7662: my $txt=shift;
7663: $txt=~tr/A-J/0-9/;
7664: $txt=~tr/a-j/0-9/;
7665: $txt=~tr/K-T/0-9/;
7666: $txt=~tr/k-t/0-9/;
7667: $txt=~tr/U-Z/0-5/;
7668: $txt=~tr/u-z/0-5/;
7669: $txt=~s/\D//g;
7670: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
7671: my $total;
7672: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 7673: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 7674: return int($total);
7675: }
7676:
1.575 albertel 7677: sub numval3 {
7678: use integer;
7679: my $txt=shift;
7680: $txt=~tr/A-J/0-9/;
7681: $txt=~tr/a-j/0-9/;
7682: $txt=~tr/K-T/0-9/;
7683: $txt=~tr/k-t/0-9/;
7684: $txt=~tr/U-Z/0-5/;
7685: $txt=~tr/u-z/0-5/;
7686: $txt=~s/\D//g;
7687: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
7688: my $total;
7689: foreach my $val (@txts) { $total+=$val; }
7690: if ($_64bit) { $total=(($total<<32)>>32); }
7691: return $total;
7692: }
7693:
1.675 albertel 7694: sub digest {
7695: my ($data)=@_;
7696: my $digest=&Digest::MD5::md5($data);
7697: my ($a,$b,$c,$d)=unpack("iiii",$digest);
7698: my ($e,$f);
7699: {
7700: use integer;
7701: $e=($a+$b);
7702: $f=($c+$d);
7703: if ($_64bit) {
7704: $e=(($e<<32)>>32);
7705: $f=(($f<<32)>>32);
7706: }
7707: }
7708: if (wantarray) {
7709: return ($e,$f);
7710: } else {
7711: my $g;
7712: {
7713: use integer;
7714: $g=($e+$f);
7715: if ($_64bit) {
7716: $g=(($g<<32)>>32);
7717: }
7718: }
7719: return $g;
7720: }
7721: }
7722:
1.368 albertel 7723: sub latest_rnd_algorithm_id {
1.675 albertel 7724: return '64bit5';
1.366 albertel 7725: }
1.32 www 7726:
1.503 albertel 7727: sub get_rand_alg {
7728: my ($courseid)=@_;
1.790 albertel 7729: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 7730: if ($courseid) {
1.620 albertel 7731: return $env{"course.$courseid.rndseed"};
1.503 albertel 7732: }
7733: return &latest_rnd_algorithm_id();
7734: }
7735:
1.562 albertel 7736: sub validCODE {
7737: my ($CODE)=@_;
7738: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
7739: return 0;
7740: }
7741:
1.491 albertel 7742: sub getCODE {
1.620 albertel 7743: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 7744: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
7745: defined($Apache::lonhomework::parsing_a_task) ) &&
7746: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 7747: return $Apache::lonhomework::history{'resource.CODE'};
7748: }
7749: return undef;
7750: }
7751:
1.31 www 7752: sub rndseed {
1.155 albertel 7753: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 7754: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 7755: if (!defined($symb)) {
1.366 albertel 7756: unless ($symb=$wsymb) { return time; }
7757: }
7758: if (!$courseid) { $courseid=$wcourseid; }
7759: if (!$domain) { $domain=$wdomain; }
7760: if (!$username) { $username=$wusername }
1.503 albertel 7761: my $which=&get_rand_alg();
1.803 albertel 7762:
1.491 albertel 7763: if (defined(&getCODE())) {
1.675 albertel 7764: if ($which eq '64bit5') {
7765: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
7766: } elsif ($which eq '64bit4') {
1.575 albertel 7767: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
7768: } else {
7769: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
7770: }
1.675 albertel 7771: } elsif ($which eq '64bit5') {
7772: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 7773: } elsif ($which eq '64bit4') {
7774: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 7775: } elsif ($which eq '64bit3') {
7776: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 7777: } elsif ($which eq '64bit2') {
7778: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 7779: } elsif ($which eq '64bit') {
7780: return &rndseed_64bit($symb,$courseid,$domain,$username);
7781: }
7782: return &rndseed_32bit($symb,$courseid,$domain,$username);
7783: }
7784:
7785: sub rndseed_32bit {
7786: my ($symb,$courseid,$domain,$username)=@_;
7787: {
7788: use integer;
7789: my $symbchck=unpack("%32C*",$symb) << 27;
7790: my $symbseed=numval($symb) << 22;
7791: my $namechck=unpack("%32C*",$username) << 17;
7792: my $nameseed=numval($username) << 12;
7793: my $domainseed=unpack("%32C*",$domain) << 7;
7794: my $courseseed=unpack("%32C*",$courseid);
7795: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 7796: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7797: #&logthis("rndseed :$num:$symb");
1.564 albertel 7798: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 7799: return $num;
7800: }
7801: }
7802:
7803: sub rndseed_64bit {
7804: my ($symb,$courseid,$domain,$username)=@_;
7805: {
7806: use integer;
7807: my $symbchck=unpack("%32S*",$symb) << 21;
7808: my $symbseed=numval($symb) << 10;
7809: my $namechck=unpack("%32S*",$username);
7810:
7811: my $nameseed=numval($username) << 21;
7812: my $domainseed=unpack("%32S*",$domain) << 10;
7813: my $courseseed=unpack("%32S*",$courseid);
7814:
7815: my $num1=$symbchck+$symbseed+$namechck;
7816: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7817: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7818: #&logthis("rndseed :$num:$symb");
1.564 albertel 7819: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 7820: return "$num1,$num2";
1.155 albertel 7821: }
1.366 albertel 7822: }
7823:
1.443 albertel 7824: sub rndseed_64bit2 {
7825: my ($symb,$courseid,$domain,$username)=@_;
7826: {
7827: use integer;
7828: # strings need to be an even # of cahracters long, it it is odd the
7829: # last characters gets thrown away
7830: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7831: my $symbseed=numval($symb) << 10;
7832: my $namechck=unpack("%32S*",$username.' ');
7833:
7834: my $nameseed=numval($username) << 21;
1.501 albertel 7835: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7836: my $courseseed=unpack("%32S*",$courseid.' ');
7837:
7838: my $num1=$symbchck+$symbseed+$namechck;
7839: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7840: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7841: #&logthis("rndseed :$num:$symb");
1.803 albertel 7842: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 7843: return "$num1,$num2";
7844: }
7845: }
7846:
7847: sub rndseed_64bit3 {
7848: my ($symb,$courseid,$domain,$username)=@_;
7849: {
7850: use integer;
7851: # strings need to be an even # of cahracters long, it it is odd the
7852: # last characters gets thrown away
7853: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7854: my $symbseed=numval2($symb) << 10;
7855: my $namechck=unpack("%32S*",$username.' ');
7856:
7857: my $nameseed=numval2($username) << 21;
1.443 albertel 7858: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7859: my $courseseed=unpack("%32S*",$courseid.' ');
7860:
7861: my $num1=$symbchck+$symbseed+$namechck;
7862: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7863: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7864: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 7865: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7866:
1.503 albertel 7867: return "$num1:$num2";
1.443 albertel 7868: }
7869: }
7870:
1.575 albertel 7871: sub rndseed_64bit4 {
7872: my ($symb,$courseid,$domain,$username)=@_;
7873: {
7874: use integer;
7875: # strings need to be an even # of cahracters long, it it is odd the
7876: # last characters gets thrown away
7877: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7878: my $symbseed=numval3($symb) << 10;
7879: my $namechck=unpack("%32S*",$username.' ');
7880:
7881: my $nameseed=numval3($username) << 21;
7882: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7883: my $courseseed=unpack("%32S*",$courseid.' ');
7884:
7885: my $num1=$symbchck+$symbseed+$namechck;
7886: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7887: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7888: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 7889: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7890:
7891: return "$num1:$num2";
7892: }
7893: }
7894:
1.675 albertel 7895: sub rndseed_64bit5 {
7896: my ($symb,$courseid,$domain,$username)=@_;
7897: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
7898: return "$num1:$num2";
7899: }
7900:
1.366 albertel 7901: sub rndseed_CODE_64bit {
7902: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 7903: {
1.366 albertel 7904: use integer;
1.443 albertel 7905: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 7906: my $symbseed=numval2($symb);
1.491 albertel 7907: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7908: my $CODEseed=numval(&getCODE());
1.443 albertel 7909: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 7910: my $num1=$symbseed+$CODEchck;
7911: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7912: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7913: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 7914: if ($_64bit) { $num1=(($num1<<32)>>32); }
7915: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 7916: return "$num1:$num2";
1.366 albertel 7917: }
7918: }
7919:
1.575 albertel 7920: sub rndseed_CODE_64bit4 {
7921: my ($symb,$courseid,$domain,$username)=@_;
7922: {
7923: use integer;
7924: my $symbchck=unpack("%32S*",$symb.' ') << 16;
7925: my $symbseed=numval3($symb);
7926: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7927: my $CODEseed=numval3(&getCODE());
7928: my $courseseed=unpack("%32S*",$courseid.' ');
7929: my $num1=$symbseed+$CODEchck;
7930: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7931: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7932: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 7933: if ($_64bit) { $num1=(($num1<<32)>>32); }
7934: if ($_64bit) { $num2=(($num2<<32)>>32); }
7935: return "$num1:$num2";
7936: }
7937: }
7938:
1.675 albertel 7939: sub rndseed_CODE_64bit5 {
7940: my ($symb,$courseid,$domain,$username)=@_;
7941: my $code = &getCODE();
7942: my ($num1,$num2)=&digest("$symb,$courseid,$code");
7943: return "$num1:$num2";
7944: }
7945:
1.366 albertel 7946: sub setup_random_from_rndseed {
7947: my ($rndseed)=@_;
1.503 albertel 7948: if ($rndseed =~/([,:])/) {
7949: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 7950: &Math::Random::random_set_seed(abs($num1),abs($num2));
7951: } else {
7952: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 7953: }
1.36 albertel 7954: }
7955:
1.474 albertel 7956: sub latest_receipt_algorithm_id {
1.835 albertel 7957: return 'receipt3';
1.474 albertel 7958: }
7959:
1.480 www 7960: sub recunique {
7961: my $fucourseid=shift;
7962: my $unique;
1.835 albertel 7963: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
7964: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7965: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 7966: } else {
7967: $unique=$perlvar{'lonReceipt'};
7968: }
7969: return unpack("%32C*",$unique);
7970: }
7971:
7972: sub recprefix {
7973: my $fucourseid=shift;
7974: my $prefix;
1.835 albertel 7975: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
7976: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7977: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 7978: } else {
7979: $prefix=$perlvar{'lonHostID'};
7980: }
7981: return unpack("%32C*",$prefix);
7982: }
7983:
1.76 www 7984: sub ireceipt {
1.474 albertel 7985: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 7986:
7987: my $return =&recprefix($fucourseid).'-';
7988:
7989: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
7990: $env{'request.state'} eq 'construct') {
7991: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
7992: return $return;
7993: }
7994:
1.76 www 7995: my $cuname=unpack("%32C*",$funame);
7996: my $cudom=unpack("%32C*",$fudom);
7997: my $cucourseid=unpack("%32C*",$fucourseid);
7998: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 7999: my $cunique=&recunique($fucourseid);
1.474 albertel 8000: my $cpart=unpack("%32S*",$part);
1.835 albertel 8001: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
8002:
1.790 albertel 8003: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 8004:
8005: $return.= ($cunique%$cuname+
8006: $cunique%$cudom+
8007: $cusymb%$cuname+
8008: $cusymb%$cudom+
8009: $cucourseid%$cuname+
8010: $cucourseid%$cudom+
8011: $cpart%$cuname+
8012: $cpart%$cudom);
8013: } else {
8014: $return.= ($cunique%$cuname+
8015: $cunique%$cudom+
8016: $cusymb%$cuname+
8017: $cusymb%$cudom+
8018: $cucourseid%$cuname+
8019: $cucourseid%$cudom);
8020: }
8021: return $return;
1.76 www 8022: }
8023:
8024: sub receipt {
1.474 albertel 8025: my ($part)=@_;
1.790 albertel 8026: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 8027: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 8028: }
1.260 ng 8029:
1.790 albertel 8030: sub whichuser {
8031: my ($passedsymb)=@_;
8032: my ($symb,$courseid,$domain,$name,$publicuser);
8033: if (defined($env{'form.grade_symb'})) {
8034: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
8035: my $allowed=&allowed('vgr',$tmp_courseid);
8036: if (!$allowed &&
8037: exists($env{'request.course.sec'}) &&
8038: $env{'request.course.sec'} !~ /^\s*$/) {
8039: $allowed=&allowed('vgr',$tmp_courseid.
8040: '/'.$env{'request.course.sec'});
8041: }
8042: if ($allowed) {
8043: ($symb)=&get_env_multiple('form.grade_symb');
8044: $courseid=$tmp_courseid;
8045: ($domain)=&get_env_multiple('form.grade_domain');
8046: ($name)=&get_env_multiple('form.grade_username');
8047: return ($symb,$courseid,$domain,$name,$publicuser);
8048: }
8049: }
8050: if (!$passedsymb) {
8051: $symb=&symbread();
8052: } else {
8053: $symb=$passedsymb;
8054: }
8055: $courseid=$env{'request.course.id'};
8056: $domain=$env{'user.domain'};
8057: $name=$env{'user.name'};
8058: if ($name eq 'public' && $domain eq 'public') {
8059: if (!defined($env{'form.username'})) {
8060: $env{'form.username'}.=time.rand(10000000);
8061: }
8062: $name.=$env{'form.username'};
8063: }
8064: return ($symb,$courseid,$domain,$name,$publicuser);
8065:
8066: }
8067:
1.36 albertel 8068: # ------------------------------------------------------------ Serves up a file
1.472 albertel 8069: # returns either the contents of the file or
8070: # -1 if the file doesn't exist
1.481 raeburn 8071: #
8072: # if the target is a file that was uploaded via DOCS,
8073: # a check will be made to see if a current copy exists on the local server,
8074: # if it does this will be served, otherwise a copy will be retrieved from
8075: # the home server for the course and stored in /home/httpd/html/userfiles on
8076: # the local server.
1.472 albertel 8077:
1.36 albertel 8078: sub getfile {
1.538 albertel 8079: my ($file) = @_;
1.609 banghart 8080: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 8081: &repcopy($file);
8082: return &readfile($file);
8083: }
8084:
8085: sub repcopy_userfile {
8086: my ($file)=@_;
1.609 banghart 8087: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 8088: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 8089: my ($cdom,$cnum,$filename) =
1.811 albertel 8090: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 8091: my $uri="/uploaded/$cdom/$cnum/$filename";
8092: if (-e "$file") {
1.828 www 8093: # we already have a local copy, check it out
1.538 albertel 8094: my @fileinfo = stat($file);
1.828 www 8095: my $rtncode;
8096: my $info;
1.538 albertel 8097: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 8098: if ($lwpresp ne 'ok') {
1.828 www 8099: # there is no such file anymore, even though we had a local copy
1.482 albertel 8100: if ($rtncode eq '404') {
1.538 albertel 8101: unlink($file);
1.482 albertel 8102: }
8103: return -1;
8104: }
8105: if ($info < $fileinfo[9]) {
1.828 www 8106: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 8107: return 'ok';
1.828 www 8108: } else {
8109: # the file is outdated, get rid of it
8110: unlink($file);
1.482 albertel 8111: }
1.828 www 8112: }
8113: # one way or the other, at this point, we don't have the file
8114: # construct the correct path for the file
8115: my @parts = ($cdom,$cnum);
8116: if ($filename =~ m|^(.+)/[^/]+$|) {
8117: push @parts, split(/\//,$1);
8118: }
8119: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
8120: foreach my $part (@parts) {
8121: $path .= '/'.$part;
8122: if (!-e $path) {
8123: mkdir($path,0770);
1.482 albertel 8124: }
8125: }
1.828 www 8126: # now the path exists for sure
8127: # get a user agent
8128: my $ua=new LWP::UserAgent;
8129: my $transferfile=$file.'.in.transfer';
8130: # FIXME: this should flock
8131: if (-e $transferfile) { return 'ok'; }
8132: my $request;
8133: $uri=~s/^\///;
1.838 albertel 8134: $request=new HTTP::Request('GET','http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri);
1.828 www 8135: my $response=$ua->request($request,$transferfile);
8136: # did it work?
8137: if ($response->is_error()) {
8138: unlink($transferfile);
8139: &logthis("Userfile repcopy failed for $uri");
8140: return -1;
8141: }
8142: # worked, rename the transfer file
8143: rename($transferfile,$file);
1.607 raeburn 8144: return 'ok';
1.481 raeburn 8145: }
8146:
1.517 albertel 8147: sub tokenwrapper {
8148: my $uri=shift;
1.552 albertel 8149: $uri=~s|^http\://([^/]+)||;
8150: $uri=~s|^/||;
1.620 albertel 8151: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 8152: my $token=$1;
1.552 albertel 8153: my (undef,$udom,$uname,$file)=split('/',$uri,4);
8154: if ($udom && $uname && $file) {
8155: $file=~s|(\?\.*)*$||;
1.949 raeburn 8156: &appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
1.838 albertel 8157: return 'http://'.&hostname(&homeserver($uname,$udom)).'/'.$uri.
1.517 albertel 8158: (($uri=~/\?/)?'&':'?').'token='.$token.
8159: '&tokenissued='.$perlvar{'lonHostID'};
8160: } else {
8161: return '/adm/notfound.html';
8162: }
8163: }
8164:
1.828 www 8165: # call with reqtype HEAD: get last modification time
8166: # call with reqtype GET: get the file contents
8167: # Do not call this with reqtype GET for large files! It loads everything into memory
8168: #
1.481 raeburn 8169: sub getuploaded {
8170: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
8171: $uri=~s/^\///;
1.838 albertel 8172: $uri = 'http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri;
1.481 raeburn 8173: my $ua=new LWP::UserAgent;
8174: my $request=new HTTP::Request($reqtype,$uri);
8175: my $response=$ua->request($request);
8176: $$rtncode = $response->code;
1.482 albertel 8177: if (! $response->is_success()) {
8178: return 'failed';
8179: }
8180: if ($reqtype eq 'HEAD') {
1.486 www 8181: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 8182: } elsif ($reqtype eq 'GET') {
8183: $$info = $response->content;
1.472 albertel 8184: }
1.482 albertel 8185: return 'ok';
1.36 albertel 8186: }
8187:
1.481 raeburn 8188: sub readfile {
8189: my $file = shift;
8190: if ( (! -e $file ) || ($file eq '') ) { return -1; };
8191: my $fh;
8192: open($fh,"<$file");
8193: my $a='';
1.800 albertel 8194: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 8195: return $a;
8196: }
8197:
1.36 albertel 8198: sub filelocation {
1.590 banghart 8199: my ($dir,$file) = @_;
8200: my $location;
8201: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 8202:
8203: if ($file =~ m-^/adm/-) {
8204: $file=~s-^/adm/wrapper/-/-;
8205: $file=~s-^/adm/coursedocs/showdoc/-/-;
8206: }
1.882 albertel 8207:
1.590 banghart 8208: if ($file=~m:^/~:) { # is a contruction space reference
8209: $location = $file;
8210: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 8211: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 8212: # is a correct contruction space reference
8213: $location = $file;
1.956 raeburn 8214: } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
8215: $location = $file;
1.609 banghart 8216: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 8217: my ($udom,$uname,$filename)=
1.811 albertel 8218: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 8219: my $home=&homeserver($uname,$udom);
8220: my $is_me=0;
8221: my @ids=¤t_machine_ids();
8222: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
8223: if ($is_me) {
1.955 raeburn 8224: $location=&propath($udom,$uname).'/userfiles/'.$filename;
1.590 banghart 8225: } else {
8226: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
8227: $udom.'/'.$uname.'/'.$filename;
8228: }
1.882 albertel 8229: } elsif ($file =~ m-^/adm/-) {
8230: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 8231: } else {
8232: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
8233: $file=~s:^/res/:/:;
8234: if ( !( $file =~ m:^/:) ) {
8235: $location = $dir. '/'.$file;
8236: } else {
8237: $location = '/home/httpd/html/res'.$file;
8238: }
1.59 albertel 8239: }
1.590 banghart 8240: $location=~s://+:/:g; # remove duplicate /
1.930 albertel 8241: while ($location=~m{/\.\./}) {
8242: if ($location =~ m{/[^/]+/\.\./}) {
8243: $location=~ s{/[^/]+/\.\./}{/}g;
8244: } else {
8245: $location=~ s{/\.\./}{/}g;
8246: }
8247: } #remove dir/..
1.590 banghart 8248: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
8249: return $location;
1.46 www 8250: }
1.36 albertel 8251:
1.46 www 8252: sub hreflocation {
8253: my ($dir,$file)=@_;
1.460 albertel 8254: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
1.666 albertel 8255: $file=filelocation($dir,$file);
1.700 albertel 8256: } elsif ($file=~m-^/adm/-) {
8257: $file=~s-^/adm/wrapper/-/-;
8258: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 8259: }
8260: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
8261: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 8262: } elsif ($file=~m-/home/($match_username)/public_html/-) {
8263: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 8264: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 8265: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 8266: -/uploaded/$1/$2/-x;
1.46 www 8267: }
1.913 albertel 8268: if ($file=~ m{^/userfiles/}) {
8269: $file =~ s{^/userfiles/}{/uploaded/};
8270: }
1.462 albertel 8271: return $file;
1.465 albertel 8272: }
8273:
8274: sub current_machine_domains {
1.853 albertel 8275: return &machine_domains(&hostname($perlvar{'lonHostID'}));
8276: }
8277:
8278: sub machine_domains {
8279: my ($hostname) = @_;
1.465 albertel 8280: my @domains;
1.838 albertel 8281: my %hostname = &all_hostnames();
1.465 albertel 8282: while( my($id, $name) = each(%hostname)) {
1.467 matthew 8283: # &logthis("-$id-$name-$hostname-");
1.465 albertel 8284: if ($hostname eq $name) {
1.844 albertel 8285: push(@domains,&host_domain($id));
1.465 albertel 8286: }
8287: }
8288: return @domains;
8289: }
8290:
8291: sub current_machine_ids {
1.853 albertel 8292: return &machine_ids(&hostname($perlvar{'lonHostID'}));
8293: }
8294:
8295: sub machine_ids {
8296: my ($hostname) = @_;
8297: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 8298: my @ids;
1.888 albertel 8299: my %name_to_host = &all_names();
1.889 albertel 8300: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
8301: return @{ $name_to_host{$hostname} };
8302: }
8303: return;
1.31 www 8304: }
8305:
1.824 raeburn 8306: sub additional_machine_domains {
8307: my @domains;
8308: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
8309: while( my $line = <$fh>) {
8310: $line =~ s/\s//g;
8311: push(@domains,$line);
8312: }
8313: return @domains;
8314: }
8315:
8316: sub default_login_domain {
8317: my $domain = $perlvar{'lonDefDomain'};
8318: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
8319: foreach my $posdom (¤t_machine_domains(),
8320: &additional_machine_domains()) {
8321: if (lc($posdom) eq lc($testdomain)) {
8322: $domain=$posdom;
8323: last;
8324: }
8325: }
8326: return $domain;
8327: }
8328:
1.31 www 8329: # ------------------------------------------------------------- Declutters URLs
8330:
8331: sub declutter {
8332: my $thisfn=shift;
1.569 albertel 8333: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 8334: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 8335: $thisfn=~s/^\///;
1.697 albertel 8336: $thisfn=~s|^adm/wrapper/||;
8337: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 8338: $thisfn=~s/^res\///;
1.235 www 8339: $thisfn=~s/\?.+$//;
1.268 www 8340: return $thisfn;
8341: }
8342:
8343: # ------------------------------------------------------------- Clutter up URLs
8344:
8345: sub clutter {
8346: my $thisfn='/'.&declutter(shift);
1.887 albertel 8347: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 8348: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 8349: $thisfn='/res'.$thisfn;
8350: }
1.694 albertel 8351: if ($thisfn !~m|/adm|) {
1.695 albertel 8352: if ($thisfn =~ m|/ext/|) {
1.694 albertel 8353: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 8354: } else {
8355: my ($ext) = ($thisfn =~ /\.(\w+)$/);
8356: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 8357: if ($embstyle eq 'ssi'
8358: || ($embstyle eq 'hdn')
8359: || ($embstyle eq 'rat')
8360: || ($embstyle eq 'prv')
8361: || ($embstyle eq 'ign')) {
8362: #do nothing with these
8363: } elsif (($embstyle eq 'img')
1.695 albertel 8364: || ($embstyle eq 'emb')
8365: || ($embstyle eq 'wrp')) {
8366: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 8367: } elsif ($embstyle eq 'unk'
8368: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 8369: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 8370: } else {
1.718 www 8371: # &logthis("Got a blank emb style");
1.695 albertel 8372: }
1.694 albertel 8373: }
8374: }
1.31 www 8375: return $thisfn;
1.12 www 8376: }
8377:
1.787 albertel 8378: sub clutter_with_no_wrapper {
8379: my $uri = &clutter(shift);
8380: if ($uri =~ m-^/adm/-) {
8381: $uri =~ s-^/adm/wrapper/-/-;
8382: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
8383: }
8384: return $uri;
8385: }
8386:
1.557 albertel 8387: sub freeze_escape {
8388: my ($value)=@_;
8389: if (ref($value)) {
8390: $value=&nfreeze($value);
8391: return '__FROZEN__'.&escape($value);
8392: }
8393: return &escape($value);
8394: }
8395:
1.11 www 8396:
1.557 albertel 8397: sub thaw_unescape {
8398: my ($value)=@_;
8399: if ($value =~ /^__FROZEN__/) {
8400: substr($value,0,10,undef);
8401: $value=&unescape($value);
8402: return &thaw($value);
8403: }
8404: return &unescape($value);
8405: }
8406:
1.436 albertel 8407: sub correct_line_ends {
8408: my ($result)=@_;
8409: $$result =~s/\r\n/\n/mg;
8410: $$result =~s/\r/\n/mg;
1.415 albertel 8411: }
1.1 albertel 8412: # ================================================================ Main Program
8413:
1.184 www 8414: sub goodbye {
1.204 albertel 8415: &logthis("Starting Shut down");
1.443 albertel 8416: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 8417: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 8418: #converted
1.599 albertel 8419: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 8420: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
8421: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
8422: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 8423: #1.1 only
1.870 albertel 8424: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
8425: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
8426: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
8427: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
8428: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 8429: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
8430: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 8431: &flushcourselogs();
8432: &logthis("Shutting down");
8433: }
8434:
1.852 albertel 8435: sub get_dns {
1.869 albertel 8436: my ($url,$func,$ignore_cache) = @_;
8437: if (!$ignore_cache) {
8438: my ($content,$cached)=
8439: &Apache::lonnet::is_cached_new('dns',$url);
8440: if ($cached) {
8441: &$func($content);
8442: return;
8443: }
8444: }
8445:
8446: my %alldns;
1.852 albertel 8447: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
8448: foreach my $dns (<$config>) {
8449: next if ($dns !~ /^\^(\S*)/x);
1.869 albertel 8450: $alldns{$1} = 1;
8451: }
8452: while (%alldns) {
8453: my ($dns) = keys(%alldns);
8454: delete($alldns{$dns});
1.852 albertel 8455: my $ua=new LWP::UserAgent;
8456: my $request=new HTTP::Request('GET',"http://$dns$url");
8457: my $response=$ua->request($request);
8458: next if ($response->is_error());
8459: my @content = split("\n",$response->content);
1.869 albertel 8460: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 8461: &$func(\@content);
1.869 albertel 8462: return;
1.852 albertel 8463: }
8464: close($config);
1.871 albertel 8465: my $which = (split('/',$url))[3];
8466: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
8467: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 8468: my @content = <$config>;
8469: &$func(\@content);
8470: return;
1.852 albertel 8471: }
1.327 albertel 8472: # ------------------------------------------------------------ Read domain file
8473: {
1.852 albertel 8474: my $loaded;
1.846 albertel 8475: my %domain;
8476:
1.852 albertel 8477: sub parse_domain_tab {
8478: my ($lines) = @_;
8479: foreach my $line (@$lines) {
8480: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 8481:
1.846 albertel 8482: chomp($line);
1.852 albertel 8483: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 8484: my %this_domain;
8485: foreach my $field ('description', 'auth_def', 'auth_arg_def',
8486: 'lang_def', 'city', 'longi', 'lati',
8487: 'primary') {
8488: $this_domain{$field} = shift(@elements);
8489: }
8490: $domain{$name} = \%this_domain;
1.852 albertel 8491: }
8492: }
1.864 albertel 8493:
8494: sub reset_domain_info {
8495: undef($loaded);
8496: undef(%domain);
8497: }
8498:
1.852 albertel 8499: sub load_domain_tab {
1.869 albertel 8500: my ($ignore_cache) = @_;
8501: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 8502: my $fh;
8503: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
8504: my @lines = <$fh>;
8505: &parse_domain_tab(\@lines);
1.448 albertel 8506: }
1.852 albertel 8507: close($fh);
8508: $loaded = 1;
1.327 albertel 8509: }
1.846 albertel 8510:
8511: sub domain {
1.852 albertel 8512: &load_domain_tab() if (!$loaded);
8513:
1.846 albertel 8514: my ($name,$what) = @_;
8515: return if ( !exists($domain{$name}) );
8516:
8517: if (!$what) {
8518: return $domain{$name}{'description'};
8519: }
8520: return $domain{$name}{$what};
8521: }
1.327 albertel 8522: }
8523:
8524:
1.1 albertel 8525: # ------------------------------------------------------------- Read hosts file
8526: {
1.838 albertel 8527: my %hostname;
1.844 albertel 8528: my %hostdom;
1.845 albertel 8529: my %libserv;
1.852 albertel 8530: my $loaded;
1.888 albertel 8531: my %name_to_host;
1.852 albertel 8532:
8533: sub parse_hosts_tab {
8534: my ($file) = @_;
8535: foreach my $configline (@$file) {
8536: next if ($configline =~ /^(\#|\s*$ )/x);
8537: next if ($configline =~ /^\^/);
8538: chomp($configline);
8539: my ($id,$domain,$role,$name)=split(/:/,$configline);
8540: $name=~s/\s//g;
8541: if ($id && $domain && $role && $name) {
8542: $hostname{$id}=$name;
1.888 albertel 8543: push(@{$name_to_host{$name}}, $id);
1.852 albertel 8544: $hostdom{$id}=$domain;
8545: if ($role eq 'library') { $libserv{$id}=$name; }
8546: }
8547: }
8548: }
1.864 albertel 8549:
8550: sub reset_hosts_info {
1.897 albertel 8551: &purge_remembered();
1.864 albertel 8552: &reset_domain_info();
8553: &reset_hosts_ip_info();
1.892 albertel 8554: undef(%name_to_host);
1.864 albertel 8555: undef(%hostname);
8556: undef(%hostdom);
8557: undef(%libserv);
8558: undef($loaded);
8559: }
1.1 albertel 8560:
1.852 albertel 8561: sub load_hosts_tab {
1.869 albertel 8562: my ($ignore_cache) = @_;
8563: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 8564: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
8565: my @config = <$config>;
8566: &parse_hosts_tab(\@config);
8567: close($config);
8568: $loaded=1;
1.1 albertel 8569: }
1.852 albertel 8570:
1.838 albertel 8571: sub hostname {
1.852 albertel 8572: &load_hosts_tab() if (!$loaded);
8573:
1.838 albertel 8574: my ($lonid) = @_;
8575: return $hostname{$lonid};
8576: }
1.845 albertel 8577:
1.838 albertel 8578: sub all_hostnames {
1.852 albertel 8579: &load_hosts_tab() if (!$loaded);
8580:
1.838 albertel 8581: return %hostname;
8582: }
1.845 albertel 8583:
1.888 albertel 8584: sub all_names {
8585: &load_hosts_tab() if (!$loaded);
8586:
8587: return %name_to_host;
8588: }
8589:
1.845 albertel 8590: sub is_library {
1.852 albertel 8591: &load_hosts_tab() if (!$loaded);
8592:
1.845 albertel 8593: return exists($libserv{$_[0]});
8594: }
8595:
8596: sub all_library {
1.852 albertel 8597: &load_hosts_tab() if (!$loaded);
8598:
1.845 albertel 8599: return %libserv;
8600: }
8601:
1.841 albertel 8602: sub get_servers {
1.852 albertel 8603: &load_hosts_tab() if (!$loaded);
8604:
1.841 albertel 8605: my ($domain,$type) = @_;
8606: my %possible_hosts = ($type eq 'library') ? %libserv
8607: : %hostname;
8608: my %result;
1.842 albertel 8609: if (ref($domain) eq 'ARRAY') {
8610: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 8611: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 8612: $result{$host} = $hostname;
8613: }
8614: }
8615: } else {
8616: while ( my ($host,$hostname) = each(%possible_hosts)) {
8617: if ($hostdom{$host} eq $domain) {
8618: $result{$host} = $hostname;
8619: }
1.841 albertel 8620: }
8621: }
8622: return %result;
8623: }
1.845 albertel 8624:
1.844 albertel 8625: sub host_domain {
1.852 albertel 8626: &load_hosts_tab() if (!$loaded);
8627:
1.844 albertel 8628: my ($lonid) = @_;
8629: return $hostdom{$lonid};
8630: }
8631:
1.841 albertel 8632: sub all_domains {
1.852 albertel 8633: &load_hosts_tab() if (!$loaded);
8634:
1.841 albertel 8635: my %seen;
8636: my @uniq = grep(!$seen{$_}++, values(%hostdom));
8637: return @uniq;
8638: }
1.1 albertel 8639: }
8640:
1.847 albertel 8641: {
8642: my %iphost;
1.856 albertel 8643: my %name_to_ip;
8644: my %lonid_to_ip;
1.869 albertel 8645:
1.847 albertel 8646: sub get_hosts_from_ip {
8647: my ($ip) = @_;
8648: my %iphosts = &get_iphost();
8649: if (ref($iphosts{$ip})) {
8650: return @{$iphosts{$ip}};
8651: }
8652: return;
1.839 albertel 8653: }
1.864 albertel 8654:
8655: sub reset_hosts_ip_info {
8656: undef(%iphost);
8657: undef(%name_to_ip);
8658: undef(%lonid_to_ip);
8659: }
1.856 albertel 8660:
8661: sub get_host_ip {
8662: my ($lonid) = @_;
8663: if (exists($lonid_to_ip{$lonid})) {
8664: return $lonid_to_ip{$lonid};
8665: }
8666: my $name=&hostname($lonid);
8667: my $ip = gethostbyname($name);
8668: return if (!$ip || length($ip) ne 4);
8669: $ip=inet_ntoa($ip);
8670: $name_to_ip{$name} = $ip;
8671: $lonid_to_ip{$lonid} = $ip;
8672: return $ip;
8673: }
1.847 albertel 8674:
8675: sub get_iphost {
1.869 albertel 8676: my ($ignore_cache) = @_;
1.894 albertel 8677:
1.869 albertel 8678: if (!$ignore_cache) {
8679: if (%iphost) {
8680: return %iphost;
8681: }
8682: my ($ip_info,$cached)=
8683: &Apache::lonnet::is_cached_new('iphost','iphost');
8684: if ($cached) {
8685: %iphost = %{$ip_info->[0]};
8686: %name_to_ip = %{$ip_info->[1]};
8687: %lonid_to_ip = %{$ip_info->[2]};
8688: return %iphost;
8689: }
8690: }
1.894 albertel 8691:
8692: # get yesterday's info for fallback
8693: my %old_name_to_ip;
8694: my ($ip_info,$cached)=
8695: &Apache::lonnet::is_cached_new('iphost','iphost');
8696: if ($cached) {
8697: %old_name_to_ip = %{$ip_info->[1]};
8698: }
8699:
1.888 albertel 8700: my %name_to_host = &all_names();
8701: foreach my $name (keys(%name_to_host)) {
1.847 albertel 8702: my $ip;
8703: if (!exists($name_to_ip{$name})) {
8704: $ip = gethostbyname($name);
8705: if (!$ip || length($ip) ne 4) {
1.894 albertel 8706: if (defined($old_name_to_ip{$name})) {
8707: $ip = $old_name_to_ip{$name};
8708: &logthis("Can't find $name defaulting to old $ip");
8709: } else {
8710: &logthis("Name $name no IP found");
8711: next;
8712: }
8713: } else {
8714: $ip=inet_ntoa($ip);
1.847 albertel 8715: }
8716: $name_to_ip{$name} = $ip;
8717: } else {
8718: $ip = $name_to_ip{$name};
1.653 albertel 8719: }
1.888 albertel 8720: foreach my $id (@{ $name_to_host{$name} }) {
8721: $lonid_to_ip{$id} = $ip;
8722: }
8723: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 8724: }
1.869 albertel 8725: &Apache::lonnet::do_cache_new('iphost','iphost',
8726: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 8727: 48*60*60);
1.869 albertel 8728:
1.847 albertel 8729: return %iphost;
1.598 albertel 8730: }
8731: }
8732:
1.862 albertel 8733: BEGIN {
8734:
8735: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
8736: unless ($readit) {
8737: {
8738: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
8739: %perlvar = (%perlvar,%{$configvars});
8740: }
8741:
8742:
1.1 albertel 8743: # ------------------------------------------------------ Read spare server file
8744: {
1.448 albertel 8745: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 8746:
8747: while (my $configline=<$config>) {
8748: chomp($configline);
1.284 matthew 8749: if ($configline) {
1.784 albertel 8750: my ($host,$type) = split(':',$configline,2);
1.785 albertel 8751: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 8752: push(@{ $spareid{$type} }, $host);
1.1 albertel 8753: }
8754: }
1.448 albertel 8755: close($config);
1.1 albertel 8756: }
1.11 www 8757: # ------------------------------------------------------------ Read permissions
8758: {
1.448 albertel 8759: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 8760:
8761: while (my $configline=<$config>) {
1.448 albertel 8762: chomp($configline);
8763: if ($configline) {
8764: my ($role,$perm)=split(/ /,$configline);
8765: if ($perm ne '') { $pr{$role}=$perm; }
8766: }
1.11 www 8767: }
1.448 albertel 8768: close($config);
1.11 www 8769: }
8770:
8771: # -------------------------------------------- Read plain texts for permissions
8772: {
1.448 albertel 8773: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 8774:
8775: while (my $configline=<$config>) {
1.448 albertel 8776: chomp($configline);
8777: if ($configline) {
1.742 raeburn 8778: my ($short,@plain)=split(/:/,$configline);
8779: %{$prp{$short}} = ();
8780: if (@plain > 0) {
8781: $prp{$short}{'std'} = $plain[0];
8782: for (my $i=1; $i<@plain; $i++) {
8783: $prp{$short}{'alt'.$i} = $plain[$i];
8784: }
8785: }
1.448 albertel 8786: }
1.135 www 8787: }
1.448 albertel 8788: close($config);
1.135 www 8789: }
8790:
8791: # ---------------------------------------------------------- Read package table
8792: {
1.448 albertel 8793: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 8794:
8795: while (my $configline=<$config>) {
1.483 albertel 8796: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 8797: chomp($configline);
8798: my ($short,$plain)=split(/:/,$configline);
8799: my ($pack,$name)=split(/\&/,$short);
8800: if ($plain ne '') {
8801: $packagetab{$pack.'&'.$name.'&name'}=$name;
8802: $packagetab{$short}=$plain;
8803: }
1.11 www 8804: }
1.448 albertel 8805: close($config);
1.329 matthew 8806: }
8807:
8808: # ------------- set up temporary directory
8809: {
8810: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
8811:
1.11 www 8812: }
8813:
1.794 albertel 8814: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
8815: 'compress_threshold'=> 20_000,
8816: });
1.185 www 8817:
1.281 www 8818: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 8819: $dumpcount=0;
1.958 www 8820: $locknum=0;
1.22 www 8821:
1.163 harris41 8822: &logtouch();
1.672 albertel 8823: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 8824: $readit=1;
1.564 albertel 8825: {
8826: use integer;
8827: my $test=(2**32)+1;
1.568 albertel 8828: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 8829: &logthis(" Detected 64bit platform ($_64bit)");
8830: }
1.195 www 8831: }
1.1 albertel 8832: }
1.179 www 8833:
1.1 albertel 8834: 1;
1.191 harris41 8835: __END__
8836:
1.243 albertel 8837: =pod
8838:
1.191 harris41 8839: =head1 NAME
8840:
1.243 albertel 8841: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 8842:
8843: =head1 SYNOPSIS
8844:
1.243 albertel 8845: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 8846:
8847: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
8848:
1.243 albertel 8849: Common parameters:
8850:
8851: =over 4
8852:
8853: =item *
8854:
8855: $uname : an internal username (if $cname expecting a course Id specifically)
8856:
8857: =item *
8858:
8859: $udom : a domain (if $cdom expecting a course's domain specifically)
8860:
8861: =item *
8862:
8863: $symb : a resource instance identifier
8864:
8865: =item *
8866:
8867: $namespace : the name of a .db file that contains the data needed or
8868: being set.
8869:
8870: =back
8871:
1.394 bowersj2 8872: =head1 OVERVIEW
1.191 harris41 8873:
1.394 bowersj2 8874: lonnet provides subroutines which interact with the
8875: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
8876: about classes, users, and resources.
1.243 albertel 8877:
8878: For many of these objects you can also use this to store data about
8879: them or modify them in various ways.
1.191 harris41 8880:
1.394 bowersj2 8881: =head2 Symbs
1.191 harris41 8882:
1.394 bowersj2 8883: To identify a specific instance of a resource, LON-CAPA uses symbols
8884: or "symbs"X<symb>. These identifiers are built from the URL of the
8885: map, the resource number of the resource in the map, and the URL of
8886: the resource itself. The latter is somewhat redundant, but might help
8887: if maps change.
8888:
8889: An example is
8890:
8891: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
8892:
8893: The respective map entry is
8894:
8895: <resource id="19" src="/res/msu/korte/tests/part12.problem"
8896: title="Problem 2">
8897: </resource>
8898:
8899: Symbs are used by the random number generator, as well as to store and
8900: restore data specific to a certain instance of for example a problem.
8901:
8902: =head2 Storing And Retrieving Data
8903:
8904: X<store()>X<cstore()>X<restore()>Three of the most important functions
8905: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
8906: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
8907: is is the non-critical message twin of cstore. These functions are for
8908: handlers to store a perl hash to a user's permanent data space in an
8909: easy manner, and to retrieve it again on another call. It is expected
8910: that a handler would use this once at the beginning to retrieve data,
8911: and then again once at the end to send only the new data back.
8912:
8913: The data is stored in the user's data directory on the user's
8914: homeserver under the ID of the course.
8915:
8916: The hash that is returned by restore will have all of the previous
8917: value for all of the elements of the hash.
8918:
8919: Example:
8920:
8921: #creating a hash
8922: my %hash;
8923: $hash{'foo'}='bar';
8924:
8925: #storing it
8926: &Apache::lonnet::cstore(\%hash);
8927:
8928: #changing a value
8929: $hash{'foo'}='notbar';
8930:
8931: #adding a new value
8932: $hash{'bar'}='foo';
8933: &Apache::lonnet::cstore(\%hash);
8934:
8935: #retrieving the hash
8936: my %history=&Apache::lonnet::restore();
8937:
8938: #print the hash
8939: foreach my $key (sort(keys(%history))) {
8940: print("\%history{$key} = $history{$key}");
8941: }
8942:
8943: Will print out:
1.191 harris41 8944:
1.394 bowersj2 8945: %history{1:foo} = bar
8946: %history{1:keys} = foo:timestamp
8947: %history{1:timestamp} = 990455579
8948: %history{2:bar} = foo
8949: %history{2:foo} = notbar
8950: %history{2:keys} = foo:bar:timestamp
8951: %history{2:timestamp} = 990455580
8952: %history{bar} = foo
8953: %history{foo} = notbar
8954: %history{timestamp} = 990455580
8955: %history{version} = 2
8956:
8957: Note that the special hash entries C<keys>, C<version> and
8958: C<timestamp> were added to the hash. C<version> will be equal to the
8959: total number of versions of the data that have been stored. The
8960: C<timestamp> attribute will be the UNIX time the hash was
8961: stored. C<keys> is available in every historical section to list which
8962: keys were added or changed at a specific historical revision of a
8963: hash.
8964:
8965: B<Warning>: do not store the hash that restore returns directly. This
8966: will cause a mess since it will restore the historical keys as if the
8967: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 8968:
1.394 bowersj2 8969: Calling convention:
1.191 harris41 8970:
1.394 bowersj2 8971: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
8972: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 8973:
1.394 bowersj2 8974: For more detailed information, see lonnet specific documentation.
1.191 harris41 8975:
1.394 bowersj2 8976: =head1 RETURN MESSAGES
1.191 harris41 8977:
1.394 bowersj2 8978: =over 4
1.191 harris41 8979:
1.394 bowersj2 8980: =item * B<con_lost>: unable to contact remote host
1.191 harris41 8981:
1.394 bowersj2 8982: =item * B<con_delayed>: unable to contact remote host, message will be delivered
8983: when the connection is brought back up
1.191 harris41 8984:
1.394 bowersj2 8985: =item * B<con_failed>: unable to contact remote host and unable to save message
8986: for later delivery
1.191 harris41 8987:
1.394 bowersj2 8988: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 8989:
1.394 bowersj2 8990: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 8991: that was requested
1.191 harris41 8992:
1.243 albertel 8993: =back
1.191 harris41 8994:
1.243 albertel 8995: =head1 PUBLIC SUBROUTINES
1.191 harris41 8996:
1.243 albertel 8997: =head2 Session Environment Functions
1.191 harris41 8998:
1.243 albertel 8999: =over 4
1.191 harris41 9000:
1.394 bowersj2 9001: =item *
9002: X<appenv()>
1.949 raeburn 9003: B<appenv($hashref,$rolesarrayref)>: the value of %{$hashref} is written to
1.394 bowersj2 9004: the user envirnoment file, and will be restored for each access this
1.620 albertel 9005: user makes during this session, also modifies the %env for the current
1.949 raeburn 9006: process. Optional rolesarrayref - if defined contains a reference to an array
9007: of roles which are exempt from the restriction on modifying user.role entries
9008: in the user's environment.db and in %env.
1.191 harris41 9009:
9010: =item *
1.394 bowersj2 9011: X<delenv()>
9012: B<delenv($regexp)>: removes all items from the session
9013: environment file that matches the regular expression in $regexp. The
1.620 albertel 9014: values are also delted from the current processes %env.
1.191 harris41 9015:
1.795 albertel 9016: =item * get_env_multiple($name)
9017:
9018: gets $name from the %env hash, it seemlessly handles the cases where multiple
9019: values may be defined and end up as an array ref.
9020:
9021: returns an array of values
9022:
1.243 albertel 9023: =back
9024:
9025: =head2 User Information
1.191 harris41 9026:
1.243 albertel 9027: =over 4
1.191 harris41 9028:
9029: =item *
1.394 bowersj2 9030: X<queryauthenticate()>
9031: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 9032: authentication scheme
9033:
9034: =item *
1.394 bowersj2 9035: X<authenticate()>
9036: B<authenticate($uname,$upass,$udom)>: try to
9037: authenticate user from domain's lib servers (first use the current
9038: one). C<$upass> should be the users password.
1.191 harris41 9039:
9040: =item *
1.394 bowersj2 9041: X<homeserver()>
9042: B<homeserver($uname,$udom)>: find the server which has
9043: the user's directory and files (there must be only one), this caches
9044: the answer, and also caches if there is a borken connection.
1.191 harris41 9045:
9046: =item *
1.394 bowersj2 9047: X<idget()>
9048: B<idget($udom,@ids)>: find the usernames behind a list of IDs
9049: (IDs are a unique resource in a domain, there must be only 1 ID per
9050: username, and only 1 username per ID in a specific domain) (returns
9051: hash: id=>name,id=>name)
1.191 harris41 9052:
9053: =item *
1.394 bowersj2 9054: X<idrget()>
9055: B<idrget($udom,@unames)>: find the IDs behind a list of
9056: usernames (returns hash: name=>id,name=>id)
1.191 harris41 9057:
9058: =item *
1.394 bowersj2 9059: X<idput()>
9060: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 9061:
9062: =item *
1.394 bowersj2 9063: X<rolesinit()>
9064: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 9065:
9066: =item *
1.551 albertel 9067: X<getsection()>
9068: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 9069: course $cname, return section name/number or '' for "not in course"
9070: and '-1' for "no section"
9071:
9072: =item *
1.394 bowersj2 9073: X<userenvironment()>
9074: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 9075: passed in @what from the requested user's environment, returns a hash
9076:
1.858 raeburn 9077: =item *
9078: X<userlog_query()>
1.859 albertel 9079: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
9080: activity.log file. %filters defines filters applied when parsing the
9081: log file. These can be start or end timestamps, or the type of action
9082: - log to look for Login or Logout events, check for Checkin or
9083: Checkout, role for role selection. The response is in the form
9084: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
9085: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 9086:
1.243 albertel 9087: =back
9088:
9089: =head2 User Roles
9090:
9091: =over 4
9092:
9093: =item *
9094:
1.810 raeburn 9095: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 9096: F: full access
9097: U,I,K: authentication modes (cxx only)
9098: '': forbidden
9099: 1: user needs to choose course
9100: 2: browse allowed
1.766 albertel 9101: A: passphrase authentication needed
1.243 albertel 9102:
9103: =item *
9104:
9105: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
9106: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
9107: and course level
9108:
9109: =item *
9110:
9111: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
9112: explanation of a user role term
9113:
1.832 raeburn 9114: =item *
9115:
1.935 raeburn 9116: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :
1.858 raeburn 9117: All arguments are optional. Returns a hash of a roles, either for
9118: co-author/assistant author roles for a user's Construction Space
1.906 albertel 9119: (default), or if $context is 'userroles', roles for the user himself,
1.933 raeburn 9120: In the hash, keys are set to colon-separated $uname,$udom,$role, and
9121: (optionally) if $withsec is true, a fourth colon-separated item - $section.
9122: For each key, value is set to colon-separated start and end times for
9123: the role. If no username and domain are specified, will default to
1.934 raeburn 9124: current user/domain. Types, roles, and roledoms are references to arrays
1.858 raeburn 9125: of role statuses (active, future or previous), roles
9126: (e.g., cc,in, st etc.) and domains of the roles which can be used
9127: to restrict the list of roles reported. If no array ref is
9128: provided for types, will default to return only active roles.
1.834 albertel 9129:
1.243 albertel 9130: =back
9131:
9132: =head2 User Modification
9133:
9134: =over 4
9135:
9136: =item *
9137:
1.957 raeburn 9138: assignrole($udom,$uname,$url,$role,$end,$start,$deleteflag,$selfenroll,$context) : assign role; give a role to a
1.243 albertel 9139: user for the level given by URL. Optional start and end dates (leave empty
9140: string or zero for "no date")
1.191 harris41 9141:
9142: =item *
9143:
1.243 albertel 9144: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
9145: change a users, password, possible return values are: ok,
9146: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
9147: refused
1.191 harris41 9148:
9149: =item *
9150:
1.243 albertel 9151: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 9152:
9153: =item *
9154:
1.963 raeburn 9155: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,
9156: $forceid,$desiredhome,$email,$inststatus) :
1.243 albertel 9157: modify user
1.191 harris41 9158:
9159: =item *
9160:
1.286 matthew 9161: modifystudent
9162:
1.957 raeburn 9163: modify a student's enrollment and identification information.
1.286 matthew 9164: The course id is resolved based on the current users environment.
9165: This means the envoking user must be a course coordinator or otherwise
9166: associated with a course.
9167:
1.297 matthew 9168: This call is essentially a wrapper for lonnet::modifyuser and
9169: lonnet::modify_student_enrollment
1.286 matthew 9170:
9171: Inputs:
9172:
9173: =over 4
9174:
1.957 raeburn 9175: =item B<$udom> Student's loncapa domain
1.286 matthew 9176:
1.957 raeburn 9177: =item B<$uname> Student's loncapa login name
1.286 matthew 9178:
1.964 bisitz 9179: =item B<$uid> Student/Employee ID
1.286 matthew 9180:
1.957 raeburn 9181: =item B<$umode> Student's authentication mode
1.286 matthew 9182:
1.957 raeburn 9183: =item B<$upass> Student's password
1.286 matthew 9184:
1.957 raeburn 9185: =item B<$first> Student's first name
1.286 matthew 9186:
1.957 raeburn 9187: =item B<$middle> Student's middle name
1.286 matthew 9188:
1.957 raeburn 9189: =item B<$last> Student's last name
1.286 matthew 9190:
1.957 raeburn 9191: =item B<$gene> Student's generation
1.286 matthew 9192:
1.957 raeburn 9193: =item B<$usec> Student's section in course
1.286 matthew 9194:
9195: =item B<$end> Unix time of the roles expiration
9196:
9197: =item B<$start> Unix time of the roles start date
9198:
9199: =item B<$forceid> If defined, allow $uid to be changed
9200:
9201: =item B<$desiredhome> server to use as home server for student
9202:
1.957 raeburn 9203: =item B<$email> Student's permanent e-mail address
9204:
9205: =item B<$type> Type of enrollment (auto or manual)
9206:
1.963 raeburn 9207: =item B<$locktype> boolean - enrollment type locked to prevent Autoenroll.pl changing manual to auto
9208:
9209: =item B<$cid> courseID - needed if a course role is assigned by a user whose current role is DC
1.957 raeburn 9210:
1.963 raeburn 9211: =item B<$selfenroll> boolean - 1 if user role change occurred via self-enrollment
1.957 raeburn 9212:
1.963 raeburn 9213: =item B<$context> role change context (shown in User Management Logs display in a course)
1.957 raeburn 9214:
1.963 raeburn 9215: =item B<$inststatus> institutional status of user - : separated string of escaped status types
1.957 raeburn 9216:
1.286 matthew 9217: =back
1.297 matthew 9218:
9219: =item *
9220:
9221: modify_student_enrollment
9222:
9223: Change a students enrollment status in a class. The environment variable
9224: 'role.request.course' must be defined for this function to proceed.
9225:
9226: Inputs:
9227:
9228: =over 4
9229:
9230: =item $udom, students domain
9231:
9232: =item $uname, students name
9233:
9234: =item $uid, students user id
9235:
9236: =item $first, students first name
9237:
9238: =item $middle
9239:
9240: =item $last
9241:
9242: =item $gene
9243:
9244: =item $usec
9245:
9246: =item $end
9247:
9248: =item $start
9249:
1.957 raeburn 9250: =item $type
9251:
9252: =item $locktype
9253:
9254: =item $cid
9255:
9256: =item $selfenroll
9257:
9258: =item $context
9259:
1.297 matthew 9260: =back
9261:
1.191 harris41 9262:
9263: =item *
9264:
1.243 albertel 9265: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
9266: custom role; give a custom role to a user for the level given by URL. Specify
9267: name and domain of role author, and role name
1.191 harris41 9268:
9269: =item *
9270:
1.243 albertel 9271: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 9272:
9273: =item *
9274:
1.243 albertel 9275: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
9276:
9277: =back
9278:
9279: =head2 Course Infomation
9280:
9281: =over 4
1.191 harris41 9282:
9283: =item *
9284:
1.631 albertel 9285: coursedescription($courseid) : returns a hash of information about the
9286: specified course id, including all environment settings for the
9287: course, the description of the course will be in the hash under the
9288: key 'description'
1.191 harris41 9289:
9290: =item *
9291:
1.624 albertel 9292: resdata($name,$domain,$type,@which) : request for current parameter
9293: setting for a specific $type, where $type is either 'course' or 'user',
9294: @what should be a list of parameters to ask about. This routine caches
9295: answers for 5 minutes.
1.243 albertel 9296:
1.877 foxr 9297: =item *
9298:
9299: get_courseresdata($courseid, $domain) : dump the entire course resource
9300: data base, returning a hash that is keyed by the resource name and has
9301: values that are the resource value. I believe that the timestamps and
9302: versions are also returned.
9303:
9304:
1.243 albertel 9305: =back
9306:
9307: =head2 Course Modification
9308:
9309: =over 4
1.191 harris41 9310:
9311: =item *
9312:
1.243 albertel 9313: writecoursepref($courseid,%prefs) : write preferences (environment
9314: database) for a course
1.191 harris41 9315:
9316: =item *
9317:
1.243 albertel 9318: createcourse($udom,$description,$url) : make/modify course
9319:
9320: =back
9321:
9322: =head2 Resource Subroutines
9323:
9324: =over 4
1.191 harris41 9325:
9326: =item *
9327:
1.243 albertel 9328: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 9329:
9330: =item *
9331:
1.243 albertel 9332: repcopy($filename) : subscribes to the requested file, and attempts to
9333: replicate from the owning library server, Might return
1.607 raeburn 9334: 'unavailable', 'not_found', 'forbidden', 'ok', or
9335: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 9336: resource. Expects the local filesystem pathname
9337: (/home/httpd/html/res/....)
9338:
9339: =back
9340:
9341: =head2 Resource Information
9342:
9343: =over 4
1.191 harris41 9344:
9345: =item *
9346:
1.243 albertel 9347: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
9348: a vairety of different possible values, $varname should be a request
9349: string, and the other parameters can be used to specify who and what
9350: one is asking about.
9351:
9352: Possible values for $varname are environment.lastname (or other item
9353: from the envirnment hash), user.name (or someother aspect about the
9354: user), resource.0.maxtries (or some other part and parameter of a
9355: resource)
1.204 albertel 9356:
9357: =item *
9358:
1.243 albertel 9359: directcondval($number) : get current value of a condition; reads from a state
9360: string
1.204 albertel 9361:
9362: =item *
9363:
1.243 albertel 9364: condval($condidx) : value of condition index based on state
1.204 albertel 9365:
9366: =item *
9367:
1.243 albertel 9368: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
9369: resource's metadata, $what should be either a specific key, or either
9370: 'keys' (to get a list of possible keys) or 'packages' to get a list of
9371: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
9372:
9373: this function automatically caches all requests
1.191 harris41 9374:
9375: =item *
9376:
1.243 albertel 9377: metadata_query($query,$custom,$customshow) : make a metadata query against the
9378: network of library servers; returns file handle of where SQL and regex results
9379: will be stored for query
1.191 harris41 9380:
9381: =item *
9382:
1.243 albertel 9383: symbread($filename) : return symbolic list entry (filename argument optional);
9384: returns the data handle
1.191 harris41 9385:
9386: =item *
9387:
1.243 albertel 9388: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 9389: a possible symb for the URL in $thisfn, and if is an encryypted
9390: resource that the user accessed using /enc/ returns a 1 on success, 0
9391: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 9392: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 9393:
1.191 harris41 9394:
9395: =item *
9396:
1.243 albertel 9397: symbclean($symb) : removes versions numbers from a symb, returns the
9398: cleaned symb
1.191 harris41 9399:
9400: =item *
9401:
1.243 albertel 9402: is_on_map($uri) : checks if the $uri is somewhere on the current
9403: course map, user must be in a course for it to work.
1.191 harris41 9404:
9405: =item *
9406:
1.243 albertel 9407: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 9408:
9409: =item *
9410:
1.243 albertel 9411: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
9412: a random seed, all arguments are optional, if they aren't sent it uses the
9413: environment to derive them. Note: if symb isn't sent and it can't get one
9414: from &symbread it will use the current time as its return value
1.191 harris41 9415:
9416: =item *
9417:
1.243 albertel 9418: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
9419: unfakeable, receipt
1.191 harris41 9420:
9421: =item *
9422:
1.620 albertel 9423: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 9424:
9425: =item *
9426:
1.243 albertel 9427: countacc($url) : count the number of accesses to a given URL
1.191 harris41 9428:
9429: =item *
9430:
1.243 albertel 9431: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 9432:
9433: =item *
9434:
1.243 albertel 9435: checkin($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 $tcrsid)
1.191 harris41 9436:
9437: =item *
9438:
1.243 albertel 9439: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 9440:
9441: =item *
9442:
1.243 albertel 9443: devalidate($symb) : devalidate temporary spreadsheet calculations,
9444: forcing spreadsheet to reevaluate the resource scores next time.
9445:
9446: =back
9447:
9448: =head2 Storing/Retreiving Data
9449:
9450: =over 4
1.191 harris41 9451:
9452: =item *
9453:
1.243 albertel 9454: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
9455: for this url; hashref needs to be given and should be a \%hashname; the
9456: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 9457: be derived from the env
1.191 harris41 9458:
9459: =item *
9460:
1.243 albertel 9461: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
9462: uses critical subroutine
1.191 harris41 9463:
9464: =item *
9465:
1.243 albertel 9466: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
9467: all args are optional
1.191 harris41 9468:
9469: =item *
9470:
1.717 albertel 9471: dumpstore($namespace,$udom,$uname,$regexp,$range) :
9472: dumps the complete (or key matching regexp) namespace into a hash
9473: ($udom, $uname, $regexp, $range are optional) for a namespace that is
9474: normally &store()ed into
9475:
9476: $range should be either an integer '100' (give me the first 100
9477: matching records)
9478: or be two integers sperated by a - with no spaces
9479: '30-50' (give me the 30th through the 50th matching
9480: records)
9481:
9482:
9483: =item *
9484:
9485: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
9486: replaces a &store() version of data with a replacement set of data
9487: for a particular resource in a namespace passed in the $storehash hash
9488: reference
9489:
9490: =item *
9491:
1.243 albertel 9492: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
9493: works very similar to store/cstore, but all data is stored in a
9494: temporary location and can be reset using tmpreset, $storehash should
9495: be a hash reference, returns nothing on success
1.191 harris41 9496:
9497: =item *
9498:
1.243 albertel 9499: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
9500: similar to restore, but all data is stored in a temporary location and
9501: can be reset using tmpreset. Returns a hash of values on success,
9502: error string otherwise.
1.191 harris41 9503:
9504: =item *
9505:
1.243 albertel 9506: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
9507: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 9508:
9509: =item *
9510:
1.243 albertel 9511: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
9512: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 9513:
9514: =item *
9515:
1.243 albertel 9516: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
9517: namesp ($udom and $uname are optional)
1.191 harris41 9518:
9519: =item *
9520:
1.702 albertel 9521: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 9522: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 9523: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 9524:
1.702 albertel 9525: $range should be either an integer '100' (give me the first 100
9526: matching records)
9527: or be two integers sperated by a - with no spaces
9528: '30-50' (give me the 30th through the 50th matching
9529: records)
1.449 matthew 9530: =item *
9531:
9532: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
9533: $store can be a scalar, an array reference, or if the amount to be
9534: incremented is > 1, a hash reference.
9535:
9536: ($udom and $uname are optional)
1.191 harris41 9537:
9538: =item *
9539:
1.243 albertel 9540: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
9541: ($udom and $uname are optional)
1.191 harris41 9542:
9543: =item *
9544:
1.243 albertel 9545: cput($namespace,$storehash,$udom,$uname) : critical put
9546: ($udom and $uname are optional)
1.191 harris41 9547:
9548: =item *
9549:
1.748 albertel 9550: newput($namespace,$storehash,$udom,$uname) :
9551:
9552: Attempts to store the items in the $storehash, but only if they don't
9553: currently exist, if this succeeds you can be certain that you have
9554: successfully created a new key value pair in the $namespace db.
9555:
9556:
9557: Args:
9558: $namespace: name of database to store values to
9559: $storehash: hashref to store to the db
9560: $udom: (optional) domain of user containing the db
9561: $uname: (optional) name of user caontaining the db
9562:
9563: Returns:
9564: 'ok' -> succeeded in storing all keys of $storehash
9565: 'key_exists: <key>' -> failed to anything out of $storehash, as at
9566: least <key> already existed in the db (other
9567: requested keys may also already exist)
9568: 'error: <msg>' -> unable to tie the DB or other erorr occured
9569: 'con_lost' -> unable to contact request server
9570: 'refused' -> action was not allowed by remote machine
9571:
9572:
9573: =item *
9574:
1.243 albertel 9575: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
9576: reference filled in from namesp (encrypts the return communication)
9577: ($udom and $uname are optional)
1.191 harris41 9578:
9579: =item *
9580:
1.243 albertel 9581: log($udom,$name,$home,$message) : write to permanent log for user; use
9582: critical subroutine
9583:
1.806 raeburn 9584: =item *
9585:
1.860 raeburn 9586: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
9587: array reference filled in from namespace found in domain level on either
9588: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 9589:
9590: =item *
9591:
1.860 raeburn 9592: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
9593: domain level either on specified domain server ($uhome) or primary domain
9594: server ($udom and $uhome are optional)
1.806 raeburn 9595:
1.943 raeburn 9596: =item *
9597:
9598: get_domain_defaults($target_domain) : returns hash with defaults for
9599: authentication and language in the domain. Keys are: auth_def, auth_arg_def,
9600: lang_def; corresponsing values are authentication type (internal, krb4, krb5,
9601: or localauth), initial password or a kerberos realm, language (e.g., en-us).
9602: Values are retrieved from cache (if current), or from domain's configuration.db
9603: (if available), or lastly from values in lonTabs/dns_domain,tab,
9604: or lonTabs/domain.tab.
9605:
9606: %domdefaults = &get_auth_defaults($target_domain);
9607:
1.243 albertel 9608: =back
9609:
9610: =head2 Network Status Functions
9611:
9612: =over 4
1.191 harris41 9613:
9614: =item *
9615:
9616: dirlist($uri) : return directory list based on URI
9617:
9618: =item *
9619:
1.243 albertel 9620: spareserver() : find server with least workload from spare.tab
9621:
9622: =back
9623:
9624: =head2 Apache Request
9625:
9626: =over 4
1.191 harris41 9627:
9628: =item *
9629:
1.243 albertel 9630: ssi($url,%hash) : server side include, does a complete request cycle on url to
9631: localhost, posts hash
9632:
9633: =back
9634:
9635: =head2 Data to String to Data
9636:
9637: =over 4
1.191 harris41 9638:
9639: =item *
9640:
1.243 albertel 9641: hash2str(%hash) : convert a hash into a string complete with escaping and '='
9642: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 9643:
9644: =item *
9645:
1.243 albertel 9646: hashref2str($hashref) : convert a hashref into a string complete with
9647: escaping and '=' and '&' separators, supports elements that are
9648: arrayrefs and hashrefs
1.191 harris41 9649:
9650: =item *
9651:
1.243 albertel 9652: arrayref2str($arrayref) : convert an arrayref into a string complete
9653: with escaping and '&' separators, supports elements that are arrayrefs
9654: and hashrefs
1.191 harris41 9655:
9656: =item *
9657:
1.243 albertel 9658: str2hash($string) : convert string to hash using unescaping and
9659: splitting on '=' and '&', supports elements that are arrayrefs and
9660: hashrefs
1.191 harris41 9661:
9662: =item *
9663:
1.243 albertel 9664: str2array($string) : convert string to hash using unescaping and
9665: splitting on '&', supports elements that are arrayrefs and hashrefs
9666:
9667: =back
9668:
9669: =head2 Logging Routines
9670:
9671: =over 4
9672:
9673: These routines allow one to make log messages in the lonnet.log and
9674: lonnet.perm logfiles.
1.191 harris41 9675:
9676: =item *
9677:
1.243 albertel 9678: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 9679:
9680: =item *
9681:
1.243 albertel 9682: logthis() : append message to the normal lonnet.log file, it gets
9683: preiodically rolled over and deleted.
1.191 harris41 9684:
9685: =item *
9686:
1.243 albertel 9687: logperm() : append a permanent message to lonnet.perm.log, this log
9688: file never gets deleted by any automated portion of the system, only
9689: messages of critical importance should go in here.
9690:
9691: =back
9692:
9693: =head2 General File Helper Routines
9694:
9695: =over 4
1.191 harris41 9696:
9697: =item *
9698:
1.481 raeburn 9699: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
9700: (a) files in /uploaded
9701: (i) If a local copy of the file exists -
9702: compares modification date of local copy with last-modified date for
9703: definitive version stored on home server for course. If local copy is
9704: stale, requests a new version from the home server and stores it.
9705: If the original has been removed from the home server, then local copy
9706: is unlinked.
9707: (ii) If local copy does not exist -
9708: requests the file from the home server and stores it.
9709:
9710: If $caller is 'uploadrep':
9711: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
9712: for request for files originally uploaded via DOCS.
9713: - returns 'ok' if fresh local copy now available, -1 otherwise.
9714:
9715: Otherwise:
9716: This indicates a call from the content generation phase of the request.
9717: - returns the entire contents of the file or -1.
9718:
9719: (b) files in /res
9720: - returns the entire contents of a file or -1;
9721: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 9722:
1.712 albertel 9723:
9724: =item *
9725:
9726: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
9727: reference
9728:
9729: returns either a stat() list of data about the file or an empty list
9730: if the file doesn't exist or couldn't find out about it (connection
9731: problems or user unknown)
9732:
1.191 harris41 9733: =item *
9734:
1.243 albertel 9735: filelocation($dir,$file) : returns file system location of a file
9736: based on URI; meant to be "fairly clean" absolute reference, $dir is a
9737: directory that relative $file lookups are to looked in ($dir of /a/dir
9738: and a file of ../bob will become /a/bob)
1.191 harris41 9739:
9740: =item *
9741:
9742: hreflocation($dir,$file) : returns file system location or a URL; same as
9743: filelocation except for hrefs
9744:
9745: =item *
9746:
9747: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
9748:
1.243 albertel 9749: =back
9750:
1.608 albertel 9751: =head2 Usererfile file routines (/uploaded*)
9752:
9753: =over 4
9754:
9755: =item *
9756:
9757: userfileupload(): main rotine for putting a file in a user or course's
9758: filespace, arguments are,
9759:
1.620 albertel 9760: formname - required - this is the name of the element in $env where the
1.608 albertel 9761: filename, and the contents of the file to create/modifed exist
1.620 albertel 9762: the filename is in $env{'form.'.$formname.'.filename'} and the
9763: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 9764: coursedoc - if true, store the file in the course of the active role
9765: of the current user
9766: subdir - required - subdirectory to put the file in under ../userfiles/
9767: if undefined, it will be placed in "unknown"
9768:
9769: (This routine calls clean_filename() to remove any dangerous
9770: characters from the filename, and then calls finuserfileupload() to
9771: complete the transaction)
9772:
9773: returns either the url of the uploaded file (/uploaded/....) if successful
9774: and /adm/notfound.html if unsuccessful
9775:
9776: =item *
9777:
9778: clean_filename(): routine for cleaing a filename up for storage in
9779: userfile space, argument is:
9780:
9781: filename - proposed filename
9782:
9783: returns: the new clean filename
9784:
9785: =item *
9786:
9787: finishuserfileupload(): routine that creaes and sends the file to
9788: userspace, probably shouldn't be called directly
9789:
9790: docuname: username or courseid of destination for the file
9791: docudom: domain of user/course of destination for the file
9792: formname: same as for userfileupload()
9793: fname: filename (inculding subdirectories) for the file
9794:
9795: returns either the url of the uploaded file (/uploaded/....) if successful
9796: and /adm/notfound.html if unsuccessful
9797:
9798: =item *
9799:
9800: renameuserfile(): renames an existing userfile to a new name
9801:
9802: Args:
9803: docuname: username or courseid of destination for the file
9804: docudom: domain of user/course of destination for the file
9805: old: current file name (including any subdirs under userfiles)
9806: new: desired file name (including any subdirs under userfiles)
9807:
9808: =item *
9809:
9810: mkdiruserfile(): creates a directory is a userfiles dir
9811:
9812: Args:
9813: docuname: username or courseid of destination for the file
9814: docudom: domain of user/course of destination for the file
9815: dir: dir to create (including any subdirs under userfiles)
9816:
9817: =item *
9818:
9819: removeuserfile(): removes a file that exists in userfiles
9820:
9821: Args:
9822: docuname: username or courseid of destination for the file
9823: docudom: domain of user/course of destination for the file
9824: fname: filname to delete (including any subdirs under userfiles)
9825:
9826: =item *
9827:
9828: removeuploadedurl(): convience function for removeuserfile()
9829:
9830: Args:
9831: url: a full /uploaded/... url to delete
9832:
1.747 albertel 9833: =item *
9834:
9835: get_portfile_permissions():
9836: Args:
9837: domain: domain of user or course contain the portfolio files
9838: user: name of user or num of course contain the portfolio files
9839: Returns:
9840: hashref of a dump of the proper file_permissions.db
9841:
9842:
9843: =item *
9844:
9845: get_access_controls():
9846:
9847: Args:
9848: current_permissions: the hash ref returned from get_portfile_permissions()
9849: group: (optional) the group you want the files associated with
9850: file: (optional) the file you want access info on
9851:
9852: Returns:
1.749 raeburn 9853: a hash (keys are file names) of hashes containing
9854: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
9855: values are XML containing access control settings (see below)
1.747 albertel 9856:
9857: Internal notes:
9858:
1.749 raeburn 9859: access controls are stored in file_permissions.db as key=value pairs.
9860: key -> path to file/file_name\0uniqueID:scope_end_start
9861: where scope -> public,guest,course,group,domains or users.
9862: end -> UNIX time for end of access (0 -> no end date)
9863: start -> UNIX time for start of access
9864:
9865: value -> XML description of access control
9866: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
9867: <start></start>
9868: <end></end>
9869:
9870: <password></password> for scope type = guest
9871:
9872: <domain></domain> for scope type = course or group
9873: <number></number>
9874: <roles id="">
9875: <role></role>
9876: <access></access>
9877: <section></section>
9878: <group></group>
9879: </roles>
9880:
9881: <dom></dom> for scope type = domains
9882:
9883: <users> for scope type = users
9884: <user>
9885: <uname></uname>
9886: <udom></udom>
9887: </user>
9888: </users>
9889: </scope>
9890:
9891: Access data is also aggregated for each file in an additional key=value pair:
9892: key -> path to file/file_name\0accesscontrol
9893: value -> reference to hash
9894: hash contains key = value pairs
9895: where key = uniqueID:scope_end_start
9896: value = UNIX time record was last updated
9897:
9898: Used to improve speed of look-ups of access controls for each file.
9899:
9900: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
9901:
9902: modify_access_controls():
9903:
9904: Modifies access controls for a portfolio file
9905: Args
9906: 1. file name
9907: 2. reference to hash of required changes,
9908: 3. domain
9909: 4. username
9910: where domain,username are the domain of the portfolio owner
9911: (either a user or a course)
9912:
9913: Returns:
9914: 1. result of additions or updates ('ok' or 'error', with error message).
9915: 2. result of deletions ('ok' or 'error', with error message).
9916: 3. reference to hash of any new or updated access controls.
9917: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
9918: key = integer (inbound ID)
9919: value = uniqueID
1.747 albertel 9920:
1.608 albertel 9921: =back
9922:
1.243 albertel 9923: =head2 HTTP Helper Routines
9924:
9925: =over 4
9926:
1.191 harris41 9927: =item *
9928:
9929: escape() : unpack non-word characters into CGI-compatible hex codes
9930:
9931: =item *
9932:
9933: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
9934:
1.243 albertel 9935: =back
9936:
9937: =head1 PRIVATE SUBROUTINES
9938:
9939: =head2 Underlying communication routines (Shouldn't call)
9940:
9941: =over 4
9942:
9943: =item *
9944:
9945: subreply() : tries to pass a message to lonc, returns con_lost if incapable
9946:
9947: =item *
9948:
9949: reply() : uses subreply to send a message to remote machine, logs all failures
9950:
9951: =item *
9952:
9953: critical() : passes a critical message to another server; if cannot
9954: get through then place message in connection buffer directory and
9955: returns con_delayed, if incapable of saving message, returns
9956: con_failed
9957:
9958: =item *
9959:
9960: reconlonc() : tries to reconnect lonc client processes.
9961:
9962: =back
9963:
9964: =head2 Resource Access Logging
9965:
9966: =over 4
9967:
9968: =item *
9969:
9970: flushcourselogs() : flush (save) buffer logs and access logs
9971:
9972: =item *
9973:
9974: courselog($what) : save message for course in hash
9975:
9976: =item *
9977:
9978: courseacclog($what) : save message for course using &courselog(). Perform
9979: special processing for specific resource types (problems, exams, quizzes, etc).
9980:
1.191 harris41 9981: =item *
9982:
9983: goodbye() : flush course logs and log shutting down; it is called in srm.conf
9984: as a PerlChildExitHandler
1.243 albertel 9985:
9986: =back
9987:
9988: =head2 Other
9989:
9990: =over 4
9991:
9992: =item *
9993:
9994: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 9995:
9996: =back
9997:
9998: =cut
1.877 foxr 9999:
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