Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.662
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.662 ! raeburn 4: # $Id: lonnet.pm,v 1.661 2005/10/10 18:15:52 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();
1.15 www 34: use HTTP::Headers;
1.486 www 35: use HTTP::Date;
36: # use Date::Parse;
1.11 www 37: use vars
1.599 albertel 38: qw(%perlvar %hostname %badServerCache %iphost %spareid %hostdom
39: %libserv %pr %prp $memcache %packagetab
1.662 ! raeburn 40: %courselogs %accesshash %userrolehash %domainrolehash $processmarker $dumpcount
1.599 albertel 41: %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf
42: %domaindescription %domain_auth_def %domain_auth_arg_def
1.619 albertel 43: %domain_lang_def %domain_city %domain_longi %domain_lati $tmpdir $_64bit
44: %env);
1.403 www 45:
1.1 albertel 46: use IO::Socket;
1.31 www 47: use GDBM_File;
1.8 www 48: use Apache::Constants qw(:common :http);
1.208 albertel 49: use HTML::LCParser;
1.637 raeburn 50: use HTML::Parser;
1.88 www 51: use Fcntl qw(:flock);
1.414 www 52: use Apache::lonlocal;
1.557 albertel 53: use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw nfreeze);
1.539 albertel 54: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 55: use Cache::Memcached;
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
88:
1.163 harris41 89: sub logtouch {
90: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 91: unless (-e "$execdir/logs/lonnet.log") {
92: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 93: close $fh;
94: }
95: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
96: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
97: }
98:
1.1 albertel 99: sub logthis {
100: my $message=shift;
101: my $execdir=$perlvar{'lonDaemons'};
102: my $now=time;
103: my $local=localtime($now);
1.448 albertel 104: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
105: print $fh "$local ($$): $message\n";
106: close($fh);
107: }
1.1 albertel 108: return 1;
109: }
110:
111: sub logperm {
112: my $message=shift;
113: my $execdir=$perlvar{'lonDaemons'};
114: my $now=time;
115: my $local=localtime($now);
1.448 albertel 116: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
117: print $fh "$now:$message:$local\n";
118: close($fh);
119: }
1.1 albertel 120: return 1;
121: }
122:
123: # -------------------------------------------------- Non-critical communication
124: sub subreply {
125: my ($cmd,$server)=@_;
126: my $peerfile="$perlvar{'lonSockDir'}/$server";
1.549 foxr 127: #
128: # With loncnew process trimming, there's a timing hole between lonc server
129: # process exit and the master server picking up the listen on the AF_UNIX
130: # socket. In that time interval, a lock file will exist:
131:
132: my $lockfile=$peerfile.".lock";
133: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
134: sleep(1);
135: }
136: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 137: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 138: #
1.550 foxr 139: # We'll give the connection a few tries before abandoning it. If
140: # connection is not possible, we'll con_lost back to the client.
141: #
142: my $client;
143: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
144: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
145: Type => SOCK_STREAM,
146: Timeout => 10);
147: if($client) {
148: last; # Connected!
149: }
150: sleep(1); # Try again later if failed connection.
151: }
152: my $answer;
153: if ($client) {
154: print $client "$cmd\n";
155: $answer=<$client>;
156: if (!$answer) { $answer="con_lost"; }
157: chomp($answer);
158: } else {
159: $answer = 'con_lost'; # Failed connection.
160: }
1.1 albertel 161: return $answer;
162: }
163:
164: sub reply {
165: my ($cmd,$server)=@_;
1.205 www 166: unless (defined($hostname{$server})) { return 'no_such_host'; }
1.1 albertel 167: my $answer=subreply($cmd,$server);
1.65 www 168: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.12 www 169: &logthis("<font color=blue>WARNING:".
170: " $cmd to $server returned $answer</font>");
171: }
1.1 albertel 172: return $answer;
173: }
174:
175: # ----------------------------------------------------------- Send USR1 to lonc
176:
177: sub reconlonc {
178: my $peerfile=shift;
179: &logthis("Trying to reconnect for $peerfile");
180: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 181: if (open(my $fh,"<$loncfile")) {
1.1 albertel 182: my $loncpid=<$fh>;
183: chomp($loncpid);
184: if (kill 0 => $loncpid) {
185: &logthis("lonc at pid $loncpid responding, sending USR1");
186: kill USR1 => $loncpid;
187: sleep 1;
188: if (-e "$peerfile") { return; }
189: &logthis("$peerfile still not there, give it another try");
190: sleep 5;
191: if (-e "$peerfile") { return; }
1.12 www 192: &logthis(
193: "<font color=blue>WARNING: $peerfile still not there, giving up</font>");
1.1 albertel 194: } else {
1.12 www 195: &logthis(
196: "<font color=blue>WARNING:".
197: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 198: }
199: } else {
1.12 www 200: &logthis('<font color=blue>WARNING: lonc not running, giving up</font>');
1.1 albertel 201: }
202: }
203:
204: # ------------------------------------------------------ Critical communication
1.12 www 205:
1.1 albertel 206: sub critical {
207: my ($cmd,$server)=@_;
1.89 www 208: unless ($hostname{$server}) {
209: &logthis("<font color=blue>WARNING:".
210: " Critical message to unknown server ($server)</font>");
211: return 'no_such_host';
212: }
1.1 albertel 213: my $answer=reply($cmd,$server);
214: if ($answer eq 'con_lost') {
215: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 216: my $answer=reply($cmd,$server);
1.1 albertel 217: if ($answer eq 'con_lost') {
218: my $now=time;
219: my $middlename=$cmd;
1.5 www 220: $middlename=substr($middlename,0,16);
1.1 albertel 221: $middlename=~s/\W//g;
222: my $dfilename=
1.305 www 223: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
224: $dumpcount++;
1.1 albertel 225: {
1.448 albertel 226: my $dfh;
227: if (open($dfh,">$dfilename")) {
228: print $dfh "$cmd\n";
229: close($dfh);
230: }
1.1 albertel 231: }
232: sleep 2;
233: my $wcmd='';
234: {
1.448 albertel 235: my $dfh;
236: if (open($dfh,"<$dfilename")) {
237: $wcmd=<$dfh>;
238: close($dfh);
239: }
1.1 albertel 240: }
241: chomp($wcmd);
1.7 www 242: if ($wcmd eq $cmd) {
1.12 www 243: &logthis("<font color=blue>WARNING: ".
244: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 245: &logperm("D:$server:$cmd");
246: return 'con_delayed';
247: } else {
1.12 www 248: &logthis("<font color=red>CRITICAL:"
249: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 250: &logperm("F:$server:$cmd");
251: return 'con_failed';
252: }
253: }
254: }
255: return $answer;
1.405 albertel 256: }
257:
1.374 www 258: # ------------------------------------------- Transfer profile into environment
259:
260: sub transfer_profile_to_env {
261: my ($lonidsdir,$handle)=@_;
262: my @profile;
263: {
1.448 albertel 264: open(my $idf,"$lonidsdir/$handle.id");
1.374 www 265: flock($idf,LOCK_SH);
266: @profile=<$idf>;
1.448 albertel 267: close($idf);
1.374 www 268: }
269: my $envi;
1.433 matthew 270: my %Remove;
1.374 www 271: for ($envi=0;$envi<=$#profile;$envi++) {
272: chomp($profile[$envi]);
273: my ($envname,$envvalue)=split(/=/,$profile[$envi]);
1.619 albertel 274: $env{$envname} = $envvalue;
1.433 matthew 275: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
276: if ($time < time-300) {
277: $Remove{$key}++;
278: }
279: }
280: }
1.619 albertel 281: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.433 matthew 282: foreach my $expired_key (keys(%Remove)) {
283: &delenv($expired_key);
1.374 www 284: }
1.1 albertel 285: }
286:
1.5 www 287: # ---------------------------------------------------------- Append Environment
288:
289: sub appenv {
1.6 www 290: my %newenv=@_;
1.191 harris41 291: foreach (keys %newenv) {
1.35 www 292: if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) {
293: &logthis("<font color=blue>WARNING: ".
1.151 www 294: "Attempt to modify environment ".$_." to ".$newenv{$_}
295: .'</font>');
1.35 www 296: delete($newenv{$_});
297: } else {
1.619 albertel 298: $env{$_}=$newenv{$_};
1.35 www 299: }
1.191 harris41 300: }
1.95 www 301:
302: my $lockfh;
1.620 albertel 303: unless (open($lockfh,"$env{'user.environment'}")) {
1.448 albertel 304: return 'error: '.$!;
1.95 www 305: }
306: unless (flock($lockfh,LOCK_EX)) {
307: &logthis("<font color=blue>WARNING: ".
308: 'Could not obtain exclusive lock in appenv: '.$!);
1.448 albertel 309: close($lockfh);
1.95 www 310: return 'error: '.$!;
311: }
312:
1.6 www 313: my @oldenv;
314: {
1.448 albertel 315: my $fh;
1.620 albertel 316: unless (open($fh,"$env{'user.environment'}")) {
1.448 albertel 317: return 'error: '.$!;
318: }
319: @oldenv=<$fh>;
320: close($fh);
1.6 www 321: }
322: for (my $i=0; $i<=$#oldenv; $i++) {
323: chomp($oldenv[$i]);
1.9 www 324: if ($oldenv[$i] ne '') {
1.448 albertel 325: my ($name,$value)=split(/=/,$oldenv[$i]);
326: unless (defined($newenv{$name})) {
327: $newenv{$name}=$value;
328: }
1.9 www 329: }
1.6 www 330: }
331: {
1.448 albertel 332: my $fh;
1.620 albertel 333: unless (open($fh,">$env{'user.environment'}")) {
1.448 albertel 334: return 'error';
335: }
336: my $newname;
337: foreach $newname (keys %newenv) {
338: print $fh "$newname=$newenv{$newname}\n";
339: }
340: close($fh);
1.56 www 341: }
1.448 albertel 342:
343: close($lockfh);
1.56 www 344: return 'ok';
345: }
346: # ----------------------------------------------------- Delete from Environment
347:
348: sub delenv {
349: my $delthis=shift;
350: my %newenv=();
351: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
352: &logthis("<font color=blue>WARNING: ".
353: "Attempt to delete from environment ".$delthis);
354: return 'error';
355: }
356: my @oldenv;
357: {
1.448 albertel 358: my $fh;
1.620 albertel 359: unless (open($fh,"$env{'user.environment'}")) {
1.448 albertel 360: return 'error';
361: }
362: unless (flock($fh,LOCK_SH)) {
363: &logthis("<font color=blue>WARNING: ".
364: 'Could not obtain shared lock in delenv: '.$!);
365: close($fh);
366: return 'error: '.$!;
367: }
368: @oldenv=<$fh>;
369: close($fh);
1.56 www 370: }
371: {
1.448 albertel 372: my $fh;
1.620 albertel 373: unless (open($fh,">$env{'user.environment'}")) {
1.448 albertel 374: return 'error';
375: }
376: unless (flock($fh,LOCK_EX)) {
377: &logthis("<font color=blue>WARNING: ".
378: 'Could not obtain exclusive lock in delenv: '.$!);
379: close($fh);
380: return 'error: '.$!;
381: }
382: foreach (@oldenv) {
1.473 matthew 383: if ($_=~/^$delthis/) {
384: my ($key,undef) = split('=',$_);
1.619 albertel 385: delete($env{$key});
1.473 matthew 386: } else {
387: print $fh $_;
388: }
1.448 albertel 389: }
390: close($fh);
1.5 www 391: }
392: return 'ok';
1.369 albertel 393: }
394:
395: # ------------------------------------------ Find out current server userload
396: # there is a copy in lond
397: sub userload {
398: my $numusers=0;
399: {
400: opendir(LONIDS,$perlvar{'lonIDsDir'});
401: my $filename;
402: my $curtime=time;
403: while ($filename=readdir(LONIDS)) {
404: if ($filename eq '.' || $filename eq '..') {next;}
1.404 albertel 405: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 406: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 407: }
408: closedir(LONIDS);
409: }
410: my $userloadpercent=0;
411: my $maxuserload=$perlvar{'lonUserLoadLim'};
412: if ($maxuserload) {
1.371 albertel 413: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 414: }
1.372 albertel 415: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 416: return $userloadpercent;
1.283 www 417: }
418:
419: # ------------------------------------------ Fight off request when overloaded
420:
421: sub overloaderror {
422: my ($r,$checkserver)=@_;
423: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
424: my $loadavg;
425: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 426: open(my $loadfile,'/proc/loadavg');
1.283 www 427: $loadavg=<$loadfile>;
428: $loadavg =~ s/\s.*//g;
1.285 matthew 429: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 430: close($loadfile);
1.283 www 431: } else {
432: $loadavg=&reply('load',$checkserver);
433: }
1.285 matthew 434: my $overload=$loadavg-100;
1.283 www 435: if ($overload>0) {
1.285 matthew 436: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 437: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 438: return 413;
1.283 www 439: }
440: return '';
1.5 www 441: }
1.1 albertel 442:
443: # ------------------------------ Find server with least workload from spare.tab
1.11 www 444:
1.1 albertel 445: sub spareserver {
1.370 albertel 446: my ($loadpercent,$userloadpercent) = @_;
1.1 albertel 447: my $tryserver;
448: my $spareserver='';
1.370 albertel 449: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
450: my $lowestserver=$loadpercent > $userloadpercent?
451: $loadpercent : $userloadpercent;
1.1 albertel 452: foreach $tryserver (keys %spareid) {
1.411 albertel 453: my $loadans=reply('load',$tryserver);
454: my $userloadans=reply('userload',$tryserver);
455: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
456: next; #didn't get a number from the server
457: }
458: my $answer;
459: if ($loadans =~ /\d/) {
460: if ($userloadans =~ /\d/) {
461: #both are numbers, pick the bigger one
462: $answer=$loadans > $userloadans?
463: $loadans : $userloadans;
464: } else {
465: $answer = $loadans;
466: }
467: } else {
468: $answer = $userloadans;
469: }
470: if (($answer =~ /\d/) && ($answer<$lowestserver)) {
471: $spareserver="http://$hostname{$tryserver}";
472: $lowestserver=$answer;
473: }
1.370 albertel 474: }
1.1 albertel 475: return $spareserver;
1.202 matthew 476: }
477:
478: # --------------------------------------------- Try to change a user's password
479:
480: sub changepass {
481: my ($uname,$udom,$currentpass,$newpass,$server)=@_;
482: $currentpass = &escape($currentpass);
483: $newpass = &escape($newpass);
484: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass",
485: $server);
486: if (! $answer) {
487: &logthis("No reply on password change request to $server ".
488: "by $uname in domain $udom.");
489: } elsif ($answer =~ "^ok") {
490: &logthis("$uname in $udom successfully changed their password ".
491: "on $server.");
492: } elsif ($answer =~ "^pwchange_failure") {
493: &logthis("$uname in $udom was unable to change their password ".
494: "on $server. The action was blocked by either lcpasswd ".
495: "or pwchange");
496: } elsif ($answer =~ "^non_authorized") {
497: &logthis("$uname in $udom did not get their password correct when ".
498: "attempting to change it on $server.");
499: } elsif ($answer =~ "^auth_mode_error") {
500: &logthis("$uname in $udom attempted to change their password despite ".
501: "not being locally or internally authenticated on $server.");
502: } elsif ($answer =~ "^unknown_user") {
503: &logthis("$uname in $udom attempted to change their password ".
504: "on $server but were unable to because $server is not ".
505: "their home server.");
506: } elsif ($answer =~ "^refused") {
507: &logthis("$server refused to change $uname in $udom password because ".
508: "it was sent an unencrypted request to change the password.");
509: }
510: return $answer;
1.1 albertel 511: }
512:
1.169 harris41 513: # ----------------------- Try to determine user's current authentication scheme
514:
515: sub queryauthenticate {
516: my ($uname,$udom)=@_;
1.456 albertel 517: my $uhome=&homeserver($uname,$udom);
518: if (!$uhome) {
519: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
520: return 'no_host';
521: }
522: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
523: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
524: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 525: }
1.456 albertel 526: return $answer;
1.169 harris41 527: }
528:
1.1 albertel 529: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 530:
1.1 albertel 531: sub authenticate {
532: my ($uname,$upass,$udom)=@_;
1.12 www 533: $upass=escape($upass);
1.199 www 534: $uname=~s/\W//g;
1.471 albertel 535: my $uhome=&homeserver($uname,$udom);
536: if (!$uhome) {
537: &logthis("User $uname at $udom is unknown in authenticate");
538: return 'no_host';
1.1 albertel 539: }
1.471 albertel 540: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);
541: if ($answer eq 'authorized') {
542: &logthis("User $uname at $udom authorized by $uhome");
543: return $uhome;
544: }
545: if ($answer eq 'non_authorized') {
546: &logthis("User $uname at $udom rejected by $uhome");
547: return 'no_host';
1.9 www 548: }
1.471 albertel 549: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 550: return 'no_host';
551: }
552:
553: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 554:
1.599 albertel 555: my %homecache;
1.1 albertel 556: sub homeserver {
1.230 stredwic 557: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 558: my $index="$uname:$udom";
1.426 albertel 559:
1.599 albertel 560: if (exists($homecache{$index})) { return $homecache{$index}; }
1.1 albertel 561: my $tryserver;
562: foreach $tryserver (keys %libserv) {
1.230 stredwic 563: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 564: exists($badServerCache{$tryserver}));
1.1 albertel 565: if ($hostdom{$tryserver} eq $udom) {
566: my $answer=reply("home:$udom:$uname",$tryserver);
567: if ($answer eq 'found') {
1.599 albertel 568: return $homecache{$index}=$tryserver;
1.231 stredwic 569: } elsif ($answer eq 'no_host') {
570: $badServerCache{$tryserver}=1;
1.221 matthew 571: }
1.1 albertel 572: }
573: }
574: return 'no_host';
1.70 www 575: }
576:
577: # ------------------------------------- Find the usernames behind a list of IDs
578:
579: sub idget {
580: my ($udom,@ids)=@_;
581: my %returnhash=();
582:
583: my $tryserver;
584: foreach $tryserver (keys %libserv) {
585: if ($hostdom{$tryserver} eq $udom) {
586: my $idlist=join('&',@ids);
587: $idlist=~tr/A-Z/a-z/;
588: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
589: my @answer=();
1.76 www 590: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1.70 www 591: @answer=split(/\&/,$reply);
592: } ;
593: my $i;
594: for ($i=0;$i<=$#ids;$i++) {
595: if ($answer[$i]) {
596: $returnhash{$ids[$i]}=$answer[$i];
597: }
598: }
599: }
600: }
601: return %returnhash;
602: }
603:
604: # ------------------------------------- Find the IDs behind a list of usernames
605:
606: sub idrget {
607: my ($udom,@unames)=@_;
608: my %returnhash=();
1.191 harris41 609: foreach (@unames) {
1.70 www 610: $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1];
1.191 harris41 611: }
1.70 www 612: return %returnhash;
613: }
614:
615: # ------------------------------- Store away a list of names and associated IDs
616:
617: sub idput {
618: my ($udom,%ids)=@_;
619: my %servers=();
1.191 harris41 620: foreach (keys %ids) {
1.487 albertel 621: &cput('environment',{'id'=>$ids{$_}},$udom,$_);
1.70 www 622: my $uhom=&homeserver($_,$udom);
623: if ($uhom ne 'no_host') {
624: my $id=&escape($ids{$_});
625: $id=~tr/A-Z/a-z/;
626: my $unam=&escape($_);
627: if ($servers{$uhom}) {
628: $servers{$uhom}.='&'.$id.'='.$unam;
629: } else {
630: $servers{$uhom}=$id.'='.$unam;
631: }
632: }
1.191 harris41 633: }
634: foreach (keys %servers) {
1.70 www 635: &critical('idput:'.$udom.':'.$servers{$_},$_);
1.191 harris41 636: }
1.344 www 637: }
638:
639: # --------------------------------------------------- Assign a key to a student
640:
641: sub assign_access_key {
1.364 www 642: #
643: # a valid key looks like uname:udom#comments
644: # comments are being appended
645: #
1.498 www 646: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
647: $kdom=
1.620 albertel 648: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 649: $knum=
1.620 albertel 650: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 651: $cdom=
1.620 albertel 652: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 653: $cnum=
1.620 albertel 654: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
655: $udom=$env{'user.name'} unless (defined($udom));
656: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 657: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 658: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 659: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 660: # assigned to this person
661: # - this should not happen,
1.345 www 662: # unless something went wrong
663: # the first time around
664: # ready to assign
1.364 www 665: $logentry=$1.'; '.$logentry;
1.496 www 666: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 667: $kdom,$knum) eq 'ok') {
1.345 www 668: # key now belongs to user
1.346 www 669: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 670: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
671: &appenv('environment.'.$envkey => $ckey);
672: return 'ok';
673: } else {
674: return
675: 'error: Count not permanently assign key, will need to be re-entered later.';
676: }
677: } else {
678: return 'error: Could not assign key, try again later.';
679: }
1.364 www 680: } elsif (!$existing{$ckey}) {
1.345 www 681: # the key does not exist
682: return 'error: The key does not exist';
683: } else {
684: # the key is somebody else's
685: return 'error: The key is already in use';
686: }
1.344 www 687: }
688:
1.364 www 689: # ------------------------------------------ put an additional comment on a key
690:
691: sub comment_access_key {
692: #
693: # a valid key looks like uname:udom#comments
694: # comments are being appended
695: #
696: my ($ckey,$cdom,$cnum,$logentry)=@_;
697: $cdom=
1.620 albertel 698: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 699: $cnum=
1.620 albertel 700: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 701: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
702: if ($existing{$ckey}) {
703: $existing{$ckey}.='; '.$logentry;
704: # ready to assign
1.367 www 705: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 706: $cdom,$cnum) eq 'ok') {
707: return 'ok';
708: } else {
709: return 'error: Count not store comment.';
710: }
711: } else {
712: # the key does not exist
713: return 'error: The key does not exist';
714: }
715: }
716:
1.344 www 717: # ------------------------------------------------------ Generate a set of keys
718:
719: sub generate_access_keys {
1.364 www 720: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 721: $cdom=
1.620 albertel 722: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 723: $cnum=
1.620 albertel 724: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 725: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 726: unless (($cdom) && ($cnum)) { return 0; }
727: if ($number>10000) { return 0; }
728: sleep(2); # make sure don't get same seed twice
729: srand(time()^($$+($$<<15))); # from "Programming Perl"
730: my $total=0;
731: for (my $i=1;$i<=$number;$i++) {
732: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
733: sprintf("%lx",int(100000*rand)).'-'.
734: sprintf("%lx",int(100000*rand));
735: $newkey=~s/1/g/g; # folks mix up 1 and l
736: $newkey=~s/0/h/g; # and also 0 and O
737: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
738: if ($existing{$newkey}) {
739: $i--;
740: } else {
1.364 www 741: if (&put('accesskeys',
742: { $newkey => '# generated '.localtime().
1.620 albertel 743: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 744: '; '.$logentry },
745: $cdom,$cnum) eq 'ok') {
1.344 www 746: $total++;
747: }
748: }
749: }
1.620 albertel 750: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 751: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
752: return $total;
753: }
754:
755: # ------------------------------------------------------- Validate an accesskey
756:
757: sub validate_access_key {
758: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
759: $cdom=
1.620 albertel 760: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 761: $cnum=
1.620 albertel 762: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
763: $udom=$env{'user.domain'} unless (defined($udom));
764: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 765: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 766: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 767: }
768:
769: # ------------------------------------- Find the section of student in a course
1.652 albertel 770: sub devalidate_getsection_cache {
771: my ($udom,$unam,$courseid)=@_;
772: $courseid=~s/\_/\//g;
773: $courseid=~s/^(\w)/\/$1/;
774: my $hashid="$udom:$unam:$courseid";
775: &devalidate_cache_new('getsection',$hashid);
776: }
1.298 matthew 777:
778: sub getsection {
779: my ($udom,$unam,$courseid)=@_;
1.599 albertel 780: my $cachetime=1800;
1.298 matthew 781: $courseid=~s/\_/\//g;
782: $courseid=~s/^(\w)/\/$1/;
1.551 albertel 783:
784: my $hashid="$udom:$unam:$courseid";
1.599 albertel 785: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 786: if (defined($cached)) { return $result; }
787:
1.298 matthew 788: my %Pending;
789: my %Expired;
790: #
791: # Each role can either have not started yet (pending), be active,
792: # or have expired.
793: #
794: # If there is an active role, we are done.
795: #
796: # If there is more than one role which has not started yet,
797: # choose the one which will start sooner
798: # If there is one role which has not started yet, return it.
799: #
800: # If there is more than one expired role, choose the one which ended last.
801: # If there is a role which has expired, return it.
802: #
803: foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
804: &homeserver($unam,$udom)))) {
805: my ($key,$value)=split(/\=/,$_);
806: $key=&unescape($key);
1.479 albertel 807: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 808: my $section=$1;
809: if ($key eq $courseid.'_st') { $section=''; }
810: my ($dummy,$end,$start)=split(/\_/,&unescape($value));
811: my $now=time;
1.548 albertel 812: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 813: $Expired{$end}=$section;
814: next;
815: }
1.548 albertel 816: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 817: $Pending{$start}=$section;
818: next;
819: }
1.599 albertel 820: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 821: }
822: #
823: # Presumedly there will be few matching roles from the above
824: # loop and the sorting time will be negligible.
825: if (scalar(keys(%Pending))) {
826: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 827: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 828: }
829: if (scalar(keys(%Expired))) {
830: my @sorted = sort {$a <=> $b} keys(%Expired);
831: my $time = pop(@sorted);
1.599 albertel 832: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 833: }
1.599 albertel 834: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 835: }
1.70 www 836:
1.599 albertel 837: sub save_cache {
1.628 albertel 838: my ($r)=@_;
839: if (! $r->is_initial_req()) { return DECLINED; }
1.599 albertel 840: &purge_remembered();
1.620 albertel 841: undef(%env);
1.628 albertel 842: return OK;
1.599 albertel 843: }
1.452 albertel 844:
1.599 albertel 845: my $to_remember=-1;
846: my %remembered;
847: my %accessed;
848: my $kicks=0;
849: my $hits=0;
850: sub devalidate_cache_new {
851: my ($name,$id,$debug) = @_;
852: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
853: $id=&escape($name.':'.$id);
854: $memcache->delete($id);
855: delete($remembered{$id});
856: delete($accessed{$id});
857: }
858:
859: sub is_cached_new {
860: my ($name,$id,$debug) = @_;
861: $id=&escape($name.':'.$id);
862: if (exists($remembered{$id})) {
863: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
864: $accessed{$id}=[&gettimeofday()];
865: $hits++;
866: return ($remembered{$id},1);
867: }
868: my $value = $memcache->get($id);
869: if (!(defined($value))) {
870: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 871: return (undef,undef);
1.416 albertel 872: }
1.599 albertel 873: if ($value eq '__undef__') {
874: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
875: $value=undef;
876: }
877: &make_room($id,$value,$debug);
878: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
879: return ($value,1);
880: }
881:
882: sub do_cache_new {
883: my ($name,$id,$value,$time,$debug) = @_;
884: $id=&escape($name.':'.$id);
885: my $setvalue=$value;
886: if (!defined($setvalue)) {
887: $setvalue='__undef__';
888: }
1.623 albertel 889: if (!defined($time) ) {
890: $time=600;
891: }
1.599 albertel 892: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.600 albertel 893: $memcache->set($id,$setvalue,$time);
894: # need to make a copy of $value
895: #&make_room($id,$value,$debug);
1.599 albertel 896: return $value;
897: }
898:
899: sub make_room {
900: my ($id,$value,$debug)=@_;
901: $remembered{$id}=$value;
902: if ($to_remember<0) { return; }
903: $accessed{$id}=[&gettimeofday()];
904: if (scalar(keys(%remembered)) <= $to_remember) { return; }
905: my $to_kick;
906: my $max_time=0;
907: foreach my $other (keys(%accessed)) {
908: if (&tv_interval($accessed{$other}) > $max_time) {
909: $to_kick=$other;
910: $max_time=&tv_interval($accessed{$other});
911: }
912: }
913: delete($remembered{$to_kick});
914: delete($accessed{$to_kick});
915: $kicks++;
916: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 917: return;
918: }
919:
1.599 albertel 920: sub purge_remembered {
1.604 albertel 921: #&logthis("Tossing ".scalar(keys(%remembered)));
922: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 923: undef(%remembered);
924: undef(%accessed);
1.428 albertel 925: }
1.70 www 926: # ------------------------------------- Read an entry from a user's environment
927:
928: sub userenvironment {
929: my ($udom,$unam,@what)=@_;
930: my %returnhash=();
931: my @answer=split(/\&/,
932: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
933: &homeserver($unam,$udom)));
934: my $i;
935: for ($i=0;$i<=$#what;$i++) {
936: $returnhash{$what[$i]}=&unescape($answer[$i]);
937: }
938: return %returnhash;
1.1 albertel 939: }
940:
1.617 albertel 941: # ---------------------------------------------------------- Get a studentphoto
942: sub studentphoto {
943: my ($udom,$unam,$ext) = @_;
944: my $home=&Apache::lonnet::homeserver($unam,$udom);
945: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext",$home);
946: my $url="/uploaded/$udom/$unam/internal/studentphoto.".$ext;
947: if ($ret ne 'ok') {
948: return '/adm/lonKaputt/lonlogo_broken.gif';
949: }
950: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
951: return $tokenurl;
952: }
953:
1.263 www 954: # -------------------------------------------------------------------- New chat
955:
956: sub chatsend {
957: my ($newentry,$anon)=@_;
1.620 albertel 958: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
959: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
960: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 961: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 962: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.263 www 963: &escape($newentry)),$chome);
1.292 www 964: }
965:
966: # ------------------------------------------ Find current version of a resource
967:
968: sub getversion {
969: my $fname=&clutter(shift);
970: unless ($fname=~/^\/res\//) { return -1; }
971: return ¤tversion(&filelocation('',$fname));
972: }
973:
974: sub currentversion {
975: my $fname=shift;
1.599 albertel 976: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 977: if (defined($cached)) { return $result; }
1.292 www 978: my $author=$fname;
979: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
980: my ($udom,$uname)=split(/\//,$author);
981: my $home=homeserver($uname,$udom);
982: if ($home eq 'no_host') {
983: return -1;
984: }
985: my $answer=reply("currentversion:$fname",$home);
986: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
987: return -1;
988: }
1.599 albertel 989: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 990: }
991:
1.1 albertel 992: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 993:
1.1 albertel 994: sub subscribe {
995: my $fname=shift;
1.312 www 996: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 997: $fname=~s/[\n\r]//g;
1.1 albertel 998: my $author=$fname;
999: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1000: my ($udom,$uname)=split(/\//,$author);
1001: my $home=homeserver($uname,$udom);
1.335 albertel 1002: if ($home eq 'no_host') {
1003: return 'not_found';
1.1 albertel 1004: }
1005: my $answer=reply("sub:$fname",$home);
1.64 www 1006: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1007: $answer.=' by '.$home;
1008: }
1.1 albertel 1009: return $answer;
1010: }
1011:
1.8 www 1012: # -------------------------------------------------------------- Replicate file
1013:
1014: sub repcopy {
1015: my $filename=shift;
1.23 www 1016: $filename=~s/\/+/\//g;
1.607 raeburn 1017: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1018: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1019: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1020: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1021: return &repcopy_userfile($filename);
1022: }
1.532 albertel 1023: $filename=~s/[\n\r]//g;
1.8 www 1024: my $transname="$filename.in.transfer";
1.607 raeburn 1025: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1026: my $remoteurl=subscribe($filename);
1.64 www 1027: if ($remoteurl =~ /^con_lost by/) {
1028: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1029: return 'unavailable';
1.8 www 1030: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1031: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1032: return 'not_found';
1.64 www 1033: } elsif ($remoteurl =~ /^rejected by/) {
1034: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1035: return 'forbidden';
1.20 www 1036: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1037: return 'ok';
1.8 www 1038: } else {
1.290 www 1039: my $author=$filename;
1040: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1041: my ($udom,$uname)=split(/\//,$author);
1042: my $home=homeserver($uname,$udom);
1043: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1044: my @parts=split(/\//,$filename);
1045: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1046: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1047: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1048: return 'bad_request';
1.8 www 1049: }
1050: my $count;
1051: for ($count=5;$count<$#parts;$count++) {
1052: $path.="/$parts[$count]";
1053: if ((-e $path)!=1) {
1054: mkdir($path,0777);
1055: }
1056: }
1057: my $ua=new LWP::UserAgent;
1058: my $request=new HTTP::Request('GET',"$remoteurl");
1059: my $response=$ua->request($request,$transname);
1060: if ($response->is_error()) {
1061: unlink($transname);
1062: my $message=$response->status_line;
1.12 www 1063: &logthis("<font color=blue>WARNING:"
1064: ." LWP get: $message: $filename</font>");
1.607 raeburn 1065: return 'unavailable';
1.8 www 1066: } else {
1.16 www 1067: if ($remoteurl!~/\.meta$/) {
1068: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1069: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1070: if ($mresponse->is_error()) {
1071: unlink($filename.'.meta');
1072: &logthis(
1073: "<font color=yellow>INFO: No metadata: $filename</font>");
1074: }
1075: }
1.8 www 1076: rename($transname,$filename);
1.607 raeburn 1077: return 'ok';
1.8 www 1078: }
1.290 www 1079: }
1.8 www 1080: }
1.330 www 1081: }
1082:
1083: # ------------------------------------------------ Get server side include body
1084: sub ssi_body {
1.381 albertel 1085: my ($filelink,%form)=@_;
1.606 matthew 1086: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1087: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1088: }
1.330 www 1089: my $output=($filelink=~/^http\:/?&externalssi($filelink):
1.381 albertel 1090: &ssi($filelink,%form));
1.565 albertel 1091: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1092: $output=~s/^.*?\<body[^\>]*\>//si;
1093: $output=~s/(.*)\<\/body\s*\>.*?$/$1/si;
1.330 www 1094: return $output;
1.8 www 1095: }
1096:
1.15 www 1097: # --------------------------------------------------------- Server Side Include
1098:
1099: sub ssi {
1100:
1.23 www 1101: my ($fn,%form)=@_;
1.15 www 1102:
1103: my $ua=new LWP::UserAgent;
1.23 www 1104:
1105: my $request;
1106:
1107: if (%form) {
1108: $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
1.201 albertel 1109: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
1.23 www 1110: } else {
1111: $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
1112: }
1113:
1.15 www 1114: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1115: my $response=$ua->request($request);
1116:
1.324 www 1117: return $response->content;
1118: }
1119:
1120: sub externalssi {
1121: my ($url)=@_;
1122: my $ua=new LWP::UserAgent;
1123: my $request=new HTTP::Request('GET',$url);
1124: my $response=$ua->request($request);
1.15 www 1125: return $response->content;
1126: }
1.254 www 1127:
1.492 albertel 1128: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1129:
1130: sub allowuploaded {
1131: my ($srcurl,$url)=@_;
1132: $url=&clutter(&declutter($url));
1133: my $dir=$url;
1134: $dir=~s/\/[^\/]+$//;
1135: my %httpref=();
1136: my $httpurl=&hreflocation('',$url);
1137: $httpref{'httpref.'.$httpurl}=$srcurl;
1138: &Apache::lonnet::appenv(%httpref);
1.254 www 1139: }
1.477 raeburn 1140:
1.478 albertel 1141: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1142: # input: action, courseID, current domain, intended
1.637 raeburn 1143: # path to file, source of file, instruction to parse file for objects,
1144: # ref to hash for embedded objects,
1145: # ref to hash for codebase of java objects.
1146: #
1.485 raeburn 1147: # output: url to file (if action was uploaddoc),
1148: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1149: #
1.478 albertel 1150: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1151: # course.
1.477 raeburn 1152: #
1.478 albertel 1153: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1154: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1155: # course's home server.
1.477 raeburn 1156: #
1.478 albertel 1157: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1158: # be copied from $source (current location) to
1159: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1160: # and will then be copied to
1161: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1162: # course's home server.
1.485 raeburn 1163: #
1.481 raeburn 1164: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1165: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1166: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1167: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1168: # in course's home server.
1.637 raeburn 1169: #
1.477 raeburn 1170:
1171: sub process_coursefile {
1.638 albertel 1172: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1173: my $fetchresult;
1.638 albertel 1174: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1175: if ($action eq 'propagate') {
1.638 albertel 1176: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1177: $home);
1.481 raeburn 1178: } else {
1.477 raeburn 1179: my $fetchresult = '';
1180: my $fpath = '';
1181: my $fname = $file;
1.478 albertel 1182: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1183: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1184: my $filepath = &build_filepath($fpath);
1.481 raeburn 1185: if ($action eq 'copy') {
1186: if ($source eq '') {
1187: $fetchresult = 'no source file';
1188: return $fetchresult;
1189: } else {
1190: my $destination = $filepath.'/'.$fname;
1191: rename($source,$destination);
1192: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1193: $home);
1.481 raeburn 1194: }
1195: } elsif ($action eq 'uploaddoc') {
1196: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 1197: print $fh $env{'form.'.$source};
1.481 raeburn 1198: close($fh);
1.637 raeburn 1199: if ($parser eq 'parse') {
1200: my $parse_result = &extract_embedded_items($filepath,$fname,$allfiles,$codebase);
1201: unless ($parse_result eq 'ok') {
1202: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
1203: }
1204: }
1.477 raeburn 1205: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1206: $home);
1.481 raeburn 1207: if ($fetchresult eq 'ok') {
1208: return '/uploaded/'.$fpath.'/'.$fname;
1209: } else {
1210: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1211: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 1212: return '/adm/notfound.html';
1213: }
1.477 raeburn 1214: }
1215: }
1.485 raeburn 1216: unless ( $fetchresult eq 'ok') {
1.477 raeburn 1217: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1218: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 1219: }
1220: return $fetchresult;
1221: }
1222:
1.637 raeburn 1223: sub build_filepath {
1224: my ($fpath) = @_;
1225: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
1226: unless ($fpath eq '') {
1227: my @parts=split('/',$fpath);
1228: foreach my $part (@parts) {
1229: $filepath.= '/'.$part;
1230: if ((-e $filepath)!=1) {
1231: mkdir($filepath,0777);
1232: }
1233: }
1234: }
1235: return $filepath;
1236: }
1237:
1238: sub store_edited_file {
1.638 albertel 1239: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 1240: my $file = $primary_url;
1241: $file =~ s#^/uploaded/$docudom/$docuname/##;
1242: my $fpath = '';
1243: my $fname = $file;
1244: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1245: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1246: my $filepath = &build_filepath($fpath);
1247: open(my $fh,'>'.$filepath.'/'.$fname);
1248: print $fh $content;
1249: close($fh);
1.638 albertel 1250: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 1251: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1252: $home);
1.637 raeburn 1253: if ($$fetchresult eq 'ok') {
1254: return '/uploaded/'.$fpath.'/'.$fname;
1255: } else {
1.638 albertel 1256: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1257: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 1258: return '/adm/notfound.html';
1259: }
1260: }
1261:
1.531 albertel 1262: sub clean_filename {
1263: my ($fname)=@_;
1.315 www 1264: # Replace Windows backslashes by forward slashes
1.257 www 1265: $fname=~s/\\/\//g;
1.315 www 1266: # Get rid of everything but the actual filename
1.257 www 1267: $fname=~s/^.*\/([^\/]+)$/$1/;
1.315 www 1268: # Replace spaces by underscores
1269: $fname=~s/\s+/\_/g;
1270: # Replace all other weird characters by nothing
1.317 www 1271: $fname=~s/[^\w\.\-]//g;
1.540 albertel 1272: # Replace all .\d. sequences with _\d. so they no longer look like version
1273: # numbers
1274: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 1275: return $fname;
1276: }
1277:
1.608 albertel 1278: # --------------- Take an uploaded file and put it into the userfiles directory
1279: # input: name of form element, coursedoc=1 means this is for the course
1280: # output: url of file in userspace
1281:
1282:
1.531 albertel 1283: sub userfileupload {
1.637 raeburn 1284: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase)=@_;
1.531 albertel 1285: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 1286: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 1287: $fname=&clean_filename($fname);
1.315 www 1288: # See if there is anything left
1.257 www 1289: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 1290: chop($env{'form.'.$formname});
1.523 raeburn 1291: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
1292: my $now = time;
1293: my $filepath = 'tmp/helprequests/'.$now;
1294: my @parts=split(/\//,$filepath);
1295: my $fullpath = $perlvar{'lonDaemons'};
1296: for (my $i=0;$i<@parts;$i++) {
1297: $fullpath .= '/'.$parts[$i];
1298: if ((-e $fullpath)!=1) {
1299: mkdir($fullpath,0777);
1300: }
1301: }
1302: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 1303: print $fh $env{'form.'.$formname};
1.523 raeburn 1304: close($fh);
1305: return $fullpath.'/'.$fname;
1306: }
1.258 www 1307: # Create the directory if not present
1.493 albertel 1308: $fname="$subdir/$fname";
1.259 www 1309: if ($coursedoc) {
1.638 albertel 1310: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1311: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 1312: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 1313: return &finishuserfileupload($docuname,$docudom,
1314: $formname,$fname,$parser,$allfiles,
1315: $codebase);
1.481 raeburn 1316: } else {
1.620 albertel 1317: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 1318: return &process_coursefile('uploaddoc',$docuname,$docudom,
1319: $fname,$formname,$parser,
1320: $allfiles,$codebase);
1.481 raeburn 1321: }
1.259 www 1322: } else {
1.638 albertel 1323: my $docuname=$env{'user.name'};
1324: my $docudom=$env{'user.domain'};
1325: return &finishuserfileupload($docuname,$docudom,$formname,
1326: $fname,$parser,$allfiles,$codebase);
1.259 www 1327: }
1.271 www 1328: }
1329:
1330: sub finishuserfileupload {
1.638 albertel 1331: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase) = @_;
1.477 raeburn 1332: my $path=$docudom.'/'.$docuname.'/';
1.258 www 1333: my $filepath=$perlvar{'lonDocRoot'};
1.494 albertel 1334: my ($fnamepath,$file);
1335: $file=$fname;
1336: if ($fname=~m|/|) {
1337: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
1338: $path.=$fnamepath.'/';
1339: }
1.259 www 1340: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 1341: my $count;
1342: for ($count=4;$count<=$#parts;$count++) {
1343: $filepath.="/$parts[$count]";
1344: if ((-e $filepath)!=1) {
1345: mkdir($filepath,0777);
1346: }
1347: }
1348: # Save the file
1349: {
1.570 albertel 1350: open(FH,'>'.$filepath.'/'.$file);
1.620 albertel 1351: print FH $env{'form.'.$formname};
1.570 albertel 1352: close(FH);
1.258 www 1353: }
1.637 raeburn 1354: if ($parser eq 'parse') {
1.638 albertel 1355: my $parse_result = &extract_embedded_items($filepath,$file,$allfiles,
1356: $codebase);
1.637 raeburn 1357: unless ($parse_result eq 'ok') {
1.638 albertel 1358: &logthis('Failed to parse '.$filepath.$file.
1359: ' for embedded media: '.$parse_result);
1.637 raeburn 1360: }
1361: }
1.259 www 1362: # Notify homeserver to grep it
1363: #
1.638 albertel 1364: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 1365: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 1366: if ($fetchresult eq 'ok') {
1.259 www 1367: #
1.258 www 1368: # Return the URL to it
1.494 albertel 1369: return '/uploaded/'.$path.$file;
1.263 www 1370: } else {
1.494 albertel 1371: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
1372: ': '.$fetchresult);
1.263 www 1373: return '/adm/notfound.html';
1374: }
1.493 albertel 1375: }
1376:
1.637 raeburn 1377: sub extract_embedded_items {
1.648 raeburn 1378: my ($filepath,$file,$allfiles,$codebase,$content) = @_;
1.637 raeburn 1379: my @state = ();
1380: my %javafiles = (
1381: codebase => '',
1382: code => '',
1383: archive => ''
1384: );
1385: my %mediafiles = (
1386: src => '',
1387: movie => '',
1388: );
1.648 raeburn 1389: my $p;
1390: if ($content) {
1391: $p = HTML::LCParser->new($content);
1392: } else {
1393: $p = HTML::LCParser->new($filepath.'/'.$file);
1394: }
1.641 albertel 1395: while (my $t=$p->get_token()) {
1.640 albertel 1396: if ($t->[0] eq 'S') {
1397: my ($tagname, $attr) = ($t->[1],$t->[2]);
1398: push (@state, $tagname);
1.648 raeburn 1399: if (lc($tagname) eq 'allow') {
1400: &add_filetype($allfiles,$attr->{'src'},'src');
1401: }
1.640 albertel 1402: if (lc($tagname) eq 'img') {
1403: &add_filetype($allfiles,$attr->{'src'},'src');
1404: }
1.645 raeburn 1405: if (lc($tagname) eq 'script') {
1406: if ($attr->{'archive'} =~ /\.jar$/i) {
1407: &add_filetype($allfiles,$attr->{'archive'},'archive');
1408: } else {
1409: &add_filetype($allfiles,$attr->{'src'},'src');
1410: }
1411: }
1412: if (lc($tagname) eq 'link') {
1413: if (lc($attr->{'rel'}) eq 'stylesheet') {
1414: &add_filetype($allfiles,$attr->{'href'},'href');
1415: }
1416: }
1.640 albertel 1417: if (lc($tagname) eq 'object' ||
1418: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
1419: foreach my $item (keys(%javafiles)) {
1420: $javafiles{$item} = '';
1421: }
1422: }
1423: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
1424: my $name = lc($attr->{'name'});
1425: foreach my $item (keys(%javafiles)) {
1426: if ($name eq $item) {
1427: $javafiles{$item} = $attr->{'value'};
1428: last;
1429: }
1430: }
1431: foreach my $item (keys(%mediafiles)) {
1432: if ($name eq $item) {
1433: &add_filetype($allfiles, $attr->{'value'}, 'value');
1434: last;
1435: }
1436: }
1437: }
1438: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
1439: foreach my $item (keys(%javafiles)) {
1440: if ($attr->{$item}) {
1441: $javafiles{$item} = $attr->{$item};
1442: last;
1443: }
1444: }
1445: foreach my $item (keys(%mediafiles)) {
1446: if ($attr->{$item}) {
1447: &add_filetype($allfiles,$attr->{$item},$item);
1448: last;
1449: }
1450: }
1451: }
1452: } elsif ($t->[0] eq 'E') {
1453: my ($tagname) = ($t->[1]);
1454: if ($javafiles{'codebase'} ne '') {
1455: $javafiles{'codebase'} .= '/';
1456: }
1457: if (lc($tagname) eq 'applet' ||
1458: lc($tagname) eq 'object' ||
1459: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
1460: ) {
1461: foreach my $item (keys(%javafiles)) {
1462: if ($item ne 'codebase' && $javafiles{$item} ne '') {
1463: my $file=$javafiles{'codebase'}.$javafiles{$item};
1464: &add_filetype($allfiles,$file,$item);
1465: }
1466: }
1467: }
1468: pop @state;
1469: }
1470: }
1.637 raeburn 1471: return 'ok';
1472: }
1473:
1.639 albertel 1474: sub add_filetype {
1475: my ($allfiles,$file,$type)=@_;
1476: if (exists($allfiles->{$file})) {
1477: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
1478: push(@{$allfiles->{$file}}, &escape($type));
1479: }
1480: } else {
1481: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 1482: }
1483: }
1484:
1.493 albertel 1485: sub removeuploadedurl {
1486: my ($url)=@_;
1487: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 1488: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 1489: }
1490:
1491: sub removeuserfile {
1492: my ($docuname,$docudom,$fname)=@_;
1493: my $home=&homeserver($docuname,$docudom);
1494: return &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1.257 www 1495: }
1.15 www 1496:
1.530 albertel 1497: sub mkdiruserfile {
1498: my ($docuname,$docudom,$dir)=@_;
1499: my $home=&homeserver($docuname,$docudom);
1500: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
1501: }
1502:
1.531 albertel 1503: sub renameuserfile {
1504: my ($docuname,$docudom,$old,$new)=@_;
1505: my $home=&homeserver($docuname,$docudom);
1506: return &reply("renameuserfile:$docudom:$docuname:".&escape("$old").':'.
1507: &escape("$new"),$home);
1508: }
1509:
1.14 www 1510: # ------------------------------------------------------------------------- Log
1511:
1512: sub log {
1513: my ($dom,$nam,$hom,$what)=@_;
1.47 www 1514: return critical("log:$dom:$nam:$what",$hom);
1.157 www 1515: }
1516:
1517: # ------------------------------------------------------------------ Course Log
1.352 www 1518: #
1519: # This routine flushes several buffers of non-mission-critical nature
1520: #
1.157 www 1521:
1522: sub flushcourselogs {
1.352 www 1523: &logthis('Flushing log buffers');
1524: #
1525: # course logs
1526: # This is a log of all transactions in a course, which can be used
1527: # for data mining purposes
1528: #
1529: # It also collects the courseid database, which lists last transaction
1530: # times and course titles for all courseids
1531: #
1532: my %courseidbuffer=();
1.191 harris41 1533: foreach (keys %courselogs) {
1.157 www 1534: my $crsid=$_;
1.352 www 1535: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 1536: &escape($courselogs{$crsid}),
1537: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 1538: delete $courselogs{$crsid};
1539: } else {
1540: &logthis('Failed to flush log buffer for '.$crsid);
1541: if (length($courselogs{$crsid})>40000) {
1542: &logthis("<font color=blue>WARNING: Buffer for ".$crsid.
1543: " exceeded maximum size, deleting.</font>");
1544: delete $courselogs{$crsid};
1545: }
1.352 www 1546: }
1547: if ($courseidbuffer{$coursehombuf{$crsid}}) {
1548: $courseidbuffer{$coursehombuf{$crsid}}.='&'.
1.516 raeburn 1549: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.571 raeburn 1550: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid});
1.352 www 1551: } else {
1552: $courseidbuffer{$coursehombuf{$crsid}}=
1.516 raeburn 1553: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.571 raeburn 1554: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid});
1555: }
1.191 harris41 1556: }
1.352 www 1557: #
1558: # Write course id database (reverse lookup) to homeserver of courses
1559: # Is used in pickcourse
1560: #
1561: foreach (keys %courseidbuffer) {
1.353 www 1562: &courseidput($hostdom{$_},$courseidbuffer{$_},$_);
1.352 www 1563: }
1564: #
1565: # File accesses
1566: # Writes to the dynamic metadata of resources to get hit counts, etc.
1567: #
1.449 matthew 1568: foreach my $entry (keys(%accesshash)) {
1.458 matthew 1569: if ($entry =~ /___count$/) {
1570: my ($dom,$name);
1571: ($dom,$name,undef)=($entry=~m:___(\w+)/(\w+)/(.*)___count$:);
1572: if (! defined($dom) || $dom eq '' ||
1573: ! defined($name) || $name eq '') {
1.620 albertel 1574: my $cid = $env{'request.course.id'};
1575: $dom = $env{'request.'.$cid.'.domain'};
1576: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 1577: }
1.450 matthew 1578: my $value = $accesshash{$entry};
1579: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
1580: my %temphash=($url => $value);
1.449 matthew 1581: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
1582: if ($result eq 'ok') {
1583: delete $accesshash{$entry};
1584: } elsif ($result eq 'unknown_cmd') {
1585: # Target server has old code running on it.
1.450 matthew 1586: my %temphash=($entry => $value);
1.449 matthew 1587: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1588: delete $accesshash{$entry};
1589: }
1590: }
1591: } else {
1.458 matthew 1592: my ($dom,$name) = ($entry=~m:___(\w+)/(\w+)/(.*)___(\w+)$:);
1.450 matthew 1593: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 1594: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1595: delete $accesshash{$entry};
1596: }
1.185 www 1597: }
1.191 harris41 1598: }
1.352 www 1599: #
1600: # Roles
1601: # Reverse lookup of user roles for course faculty/staff and co-authorship
1602: #
1.349 www 1603: foreach (keys %userrolehash) {
1604: my $entry=$_;
1.351 www 1605: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 1606: split(/\:/,$entry);
1607: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 1608: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 1609: $rudom,$runame) eq 'ok') {
1610: delete $userrolehash{$entry};
1611: }
1612: }
1.662 ! raeburn 1613: #
! 1614: # Reverse lookup of domain roles (dc, ad, li, sc, au)
! 1615: #
! 1616: my %domrolebuffer = ();
! 1617: foreach my $entry (keys %domainrolehash) {
! 1618: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split/:/,$entry;
! 1619: if ($domrolebuffer{$rudom}) {
! 1620: $domrolebuffer{$rudom}.='&'.&escape($entry).
! 1621: '='.&escape($domainrolehash{$entry});
! 1622: } else {
! 1623: $domrolebuffer{$rudom}.=&escape($entry).
! 1624: '='.&escape($domainrolehash{$entry});
! 1625: }
! 1626: delete $domainrolehash{$entry};
! 1627: }
! 1628: foreach my $dom (keys(%domrolebuffer)) {
! 1629: foreach my $tryserver (keys %libserv) {
! 1630: if ($hostdom{$tryserver} eq $dom) {
! 1631: unless (&reply('domroleput:'.$dom.':'.
! 1632: $domrolebuffer{$dom},$tryserver) eq 'ok') {
! 1633: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
! 1634: }
! 1635: }
! 1636: }
! 1637: }
1.186 www 1638: $dumpcount++;
1.157 www 1639: }
1640:
1641: sub courselog {
1642: my $what=shift;
1.158 www 1643: $what=time.':'.$what;
1.620 albertel 1644: unless ($env{'request.course.id'}) { return ''; }
1645: $coursedombuf{$env{'request.course.id'}}=
1646: $env{'course.'.$env{'request.course.id'}.'.domain'};
1647: $coursenumbuf{$env{'request.course.id'}}=
1648: $env{'course.'.$env{'request.course.id'}.'.num'};
1649: $coursehombuf{$env{'request.course.id'}}=
1650: $env{'course.'.$env{'request.course.id'}.'.home'};
1651: $coursedescrbuf{$env{'request.course.id'}}=
1652: $env{'course.'.$env{'request.course.id'}.'.description'};
1653: $courseinstcodebuf{$env{'request.course.id'}}=
1654: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
1655: $courseownerbuf{$env{'request.course.id'}}=
1656: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1657: if (defined $courselogs{$env{'request.course.id'}}) {
1658: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 1659: } else {
1.620 albertel 1660: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 1661: }
1.620 albertel 1662: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 1663: &flushcourselogs();
1664: }
1.158 www 1665: }
1666:
1667: sub courseacclog {
1668: my $fnsymb=shift;
1.620 albertel 1669: unless ($env{'request.course.id'}) { return ''; }
1670: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 1671: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 1672: $what.=':POST';
1.583 matthew 1673: # FIXME: Probably ought to escape things....
1.620 albertel 1674: foreach (keys %env) {
1.158 www 1675: if ($_=~/^form\.(.*)/) {
1.620 albertel 1676: $what.=':'.$1.'='.$env{$_};
1.158 www 1677: }
1.191 harris41 1678: }
1.583 matthew 1679: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
1680: # FIXME: We should not be depending on a form parameter that someone
1681: # editing lonsearchcat.pm might change in the future.
1.620 albertel 1682: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 1683: $what.= ':POST';
1684: # FIXME: Probably ought to escape things....
1685: foreach my $element ('courseexp','crsfulltext','crsrelated',
1686: 'crsdiscuss') {
1.620 albertel 1687: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 1688: }
1689: }
1.158 www 1690: }
1691: &courselog($what);
1.149 www 1692: }
1693:
1.185 www 1694: sub countacc {
1695: my $url=&declutter(shift);
1.458 matthew 1696: return if (! defined($url) || $url eq '');
1.620 albertel 1697: unless ($env{'request.course.id'}) { return ''; }
1698: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 1699: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 1700: $accesshash{$key}++;
1.185 www 1701: }
1.349 www 1702:
1.361 www 1703: sub linklog {
1704: my ($from,$to)=@_;
1705: $from=&declutter($from);
1706: $to=&declutter($to);
1707: $accesshash{$from.'___'.$to.'___comefrom'}=1;
1708: $accesshash{$to.'___'.$from.'___goto'}=1;
1709: }
1710:
1.349 www 1711: sub userrolelog {
1712: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 1713: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 ! raeburn 1714: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 1715: ($trole=~/^ep/) || ($trole=~/^cr/) ||
1716: ($trole=~/^ta/)) {
1.350 www 1717: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
1718: $userrolehash
1719: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 1720: =$tend.':'.$tstart;
1.662 ! raeburn 1721: }
! 1722: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
! 1723: ($trole=~/^li/) || ($trole=~/^li/) ||
! 1724: ($trole=~/^au/) || ($trole=~/^dg/) ||
! 1725: ($trole=~/^sc/)) {
! 1726: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
! 1727: $domainrolehash
! 1728: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
! 1729: = $tend.':'.$tstart;
! 1730: }
1.351 www 1731: }
1732:
1733: sub get_course_adv_roles {
1734: my $cid=shift;
1.620 albertel 1735: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 1736: my %coursehash=&coursedescription($cid);
1.470 www 1737: my %nothide=();
1738: foreach (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1739: $nothide{join(':',split(/[\@\:]/,$_))}=1;
1740: }
1.351 www 1741: my %returnhash=();
1742: my %dumphash=
1743: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
1744: my $now=time;
1745: foreach (keys %dumphash) {
1746: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1747: if (($tstart) && ($tstart<0)) { next; }
1748: if (($tend) && ($tend<$now)) { next; }
1749: if (($tstart) && ($now<$tstart)) { next; }
1750: my ($role,$username,$domain,$section)=split(/\:/,$_);
1.576 albertel 1751: if ($username eq '' || $domain eq '') { next; }
1.470 www 1752: if ((&privileged($username,$domain)) &&
1753: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 1754: if ($role eq 'cr') { next; }
1.351 www 1755: my $key=&plaintext($role);
1.656 albertel 1756: if ($role =~ /^cr/) {
1757: $key=(split('/',$role))[3];
1758: }
1.351 www 1759: if ($section) { $key.=' (Sec/Grp '.$section.')'; }
1760: if ($returnhash{$key}) {
1761: $returnhash{$key}.=','.$username.':'.$domain;
1762: } else {
1763: $returnhash{$key}=$username.':'.$domain;
1764: }
1.400 www 1765: }
1766: return %returnhash;
1767: }
1768:
1769: sub get_my_roles {
1770: my ($uname,$udom)=@_;
1.620 albertel 1771: unless (defined($uname)) { $uname=$env{'user.name'}; }
1772: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.400 www 1773: my %dumphash=
1774: &dump('nohist_userroles',$udom,$uname);
1775: my %returnhash=();
1776: my $now=time;
1777: foreach (keys %dumphash) {
1778: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1779: if (($tstart) && ($tstart<0)) { next; }
1780: if (($tend) && ($tend<$now)) { next; }
1781: if (($tstart) && ($now<$tstart)) { next; }
1782: my ($role,$username,$domain,$section)=split(/\:/,$_);
1783: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
1.373 www 1784: }
1785: return %returnhash;
1.399 www 1786: }
1787:
1788: # ----------------------------------------------------- Frontpage Announcements
1789: #
1790: #
1791:
1792: sub postannounce {
1793: my ($server,$text)=@_;
1794: unless (&allowed('psa',$hostdom{$server})) { return 'refused'; }
1795: unless ($text=~/\w/) { $text=''; }
1796: return &reply('setannounce:'.&escape($text),$server);
1797: }
1798:
1799: sub getannounce {
1.448 albertel 1800:
1801: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 1802: my $announcement='';
1803: while (<$fh>) { $announcement .=$_; }
1.448 albertel 1804: close($fh);
1.399 www 1805: if ($announcement=~/\w/) {
1806: return
1807: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 1808: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 1809: } else {
1810: return '';
1811: }
1812: } else {
1813: return '';
1814: }
1.351 www 1815: }
1.353 www 1816:
1817: # ---------------------------------------------------------- Course ID routines
1818: # Deal with domain's nohist_courseid.db files
1819: #
1820:
1821: sub courseidput {
1822: my ($domain,$what,$coursehome)=@_;
1823: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
1824: }
1825:
1826: sub courseiddump {
1.622 raeburn 1827: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref)=@_;
1.353 www 1828: my %returnhash=();
1.355 www 1829: unless ($domfilter) { $domfilter=''; }
1.353 www 1830: foreach my $tryserver (keys %libserv) {
1.511 raeburn 1831: if ( ($hostidflag == 1 && grep/^$tryserver$/,@{$hostidref}) || (!defined($hostidflag)) ) {
1.506 raeburn 1832: if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
1833: foreach (
1834: split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
1.571 raeburn 1835: $sincefilter.':'.&escape($descfilter).':'.
1.622 raeburn 1836: &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter),
1.354 www 1837: $tryserver))) {
1.506 raeburn 1838: my ($key,$value)=split(/\=/,$_);
1839: if (($key) && ($value)) {
1.516 raeburn 1840: $returnhash{&unescape($key)}=$value;
1.506 raeburn 1841: }
1.353 www 1842: }
1843: }
1844: }
1845: }
1846: return %returnhash;
1847: }
1848:
1.658 raeburn 1849: # ---------------------------------------------------------- DC e-mail
1.662 ! raeburn 1850:
! 1851: sub dcmailput {
! 1852: my ($domain,$msgid,$contents,$server)=@_;
! 1853: my $status = &Apache::lonnet::critical(
! 1854: 'dcmailput:'.$domain.':'.&Apache::lonnet::escape($msgid).'='.
! 1855: &Apache::lonnet::escape($$contents{$server}),$server);
! 1856: return $status;
! 1857: }
! 1858:
1.658 raeburn 1859: sub dcmaildump {
1860: my ($dom,$startdate,$enddate,$senders) = @_;
1861: my %returnhash=();
1.660 raeburn 1862: foreach my $tryserver (keys(%libserv)) {
1.658 raeburn 1863: if ($hostdom{$tryserver} eq $dom) {
1864: %{$returnhash{$tryserver}}=();
1865: foreach (
1866: split(/\&/,&reply('dcmaildump:'.$dom.':'.
1867: &escape($startdate).':'.&escape($enddate).':'.
1.662 ! raeburn 1868: &escape($senders), $tryserver))) {
! 1869: my ($key,$value) = split(/\=/,$_);
1.658 raeburn 1870: if (($key) && ($value)) {
1.660 raeburn 1871: $returnhash{$tryserver}{&unescape($key)} = &unescape($value);
1.658 raeburn 1872: }
1873: }
1874: }
1875: }
1876: return %returnhash;
1877: }
1.662 ! raeburn 1878: # ---------------------------------------------------------- Domain roles
! 1879:
! 1880: sub get_domain_roles {
! 1881: my ($dom,$roles,$startdate,$enddate)=@_;
! 1882: if (undef($startdate) || $startdate eq '') {
! 1883: $startdate = '.';
! 1884: }
! 1885: if (undef($enddate) || $enddate eq '') {
! 1886: $enddate = '.';
! 1887: }
! 1888: my $rolelist = join(':',@{$roles});
! 1889: my %personnel = ();
! 1890: foreach my $tryserver (keys(%libserv)) {
! 1891: if ($hostdom{$tryserver} eq $dom) {
! 1892: %{$personnel{$tryserver}}=();
! 1893: foreach (
! 1894: split(/\&/,&reply('domrolesdump:'.$dom.':'.
! 1895: &escape($startdate).':'.&escape($enddate).':'.
! 1896: &escape($rolelist), $tryserver))) {
! 1897: my($key,$value) = split(/\=/,$_);
! 1898: if (($key) && ($value)) {
! 1899: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
! 1900: }
! 1901: }
! 1902: }
! 1903: }
! 1904: return %personnel;
! 1905: }
1.658 raeburn 1906:
1.149 www 1907: # ----------------------------------------------------------- Check out an item
1908:
1.504 albertel 1909: sub get_first_access {
1910: my ($type,$argsymb)=@_;
1911: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1912: if ($argsymb) { $symb=$argsymb; }
1913: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 1914: if ($type eq 'map') {
1915: $res=&symbread($map);
1916: } else {
1917: $res=$symb;
1918: }
1919: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
1920: return $times{"$courseid\0$res"};
1.504 albertel 1921: }
1922:
1923: sub set_first_access {
1924: my ($type)=@_;
1925: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1926: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 1927: if ($type eq 'map') {
1928: $res=&symbread($map);
1929: } else {
1930: $res=$symb;
1931: }
1932: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 1933: if (!$firstaccess) {
1.588 albertel 1934: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 1935: }
1936: return 'already_set';
1.504 albertel 1937: }
1938:
1.149 www 1939: sub checkout {
1940: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1941: my $now=time;
1942: my $lonhost=$perlvar{'lonHostID'};
1943: my $infostr=&escape(
1.234 www 1944: 'CHECKOUTTOKEN&'.
1.149 www 1945: $tuname.'&'.
1946: $tudom.'&'.
1947: $tcrsid.'&'.
1948: $symb.'&'.
1949: $now.'&'.$ENV{'REMOTE_ADDR'});
1950: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 1951: if ($token=~/^error\:/) {
1952: &logthis("<font color=blue>WARNING: ".
1953: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
1954: "</font>");
1955: return '';
1956: }
1957:
1.149 www 1958: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
1959: $token=~tr/a-z/A-Z/;
1960:
1.153 www 1961: my %infohash=('resource.0.outtoken' => $token,
1962: 'resource.0.checkouttime' => $now,
1963: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 1964:
1965: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
1966: return '';
1.151 www 1967: } else {
1968: &logthis("<font color=blue>WARNING: ".
1969: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
1970: "</font>");
1.149 www 1971: }
1972:
1973: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
1974: &escape('Checkout '.$infostr.' - '.
1975: $token)) ne 'ok') {
1976: return '';
1.151 www 1977: } else {
1978: &logthis("<font color=blue>WARNING: ".
1979: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
1980: "</font>");
1.149 www 1981: }
1.151 www 1982: return $token;
1.149 www 1983: }
1984:
1985: # ------------------------------------------------------------ Check in an item
1986:
1987: sub checkin {
1988: my $token=shift;
1.150 www 1989: my $now=time;
1990: my ($ta,$tb,$lonhost)=split(/\*/,$token);
1991: $lonhost=~tr/A-Z/a-z/;
1.595 albertel 1992: my $dtoken=$ta.'_'.$hostname{$lonhost}.'_'.$tb;
1.150 www 1993: $dtoken=~s/\W/\_/g;
1.234 www 1994: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 1995: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
1996:
1.154 www 1997: unless (($tuname) && ($tudom)) {
1998: &logthis('Check in '.$token.' ('.$dtoken.') failed');
1999: return '';
2000: }
2001:
2002: unless (&allowed('mgr',$tcrsid)) {
2003: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 2004: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 2005: return '';
2006: }
2007:
1.153 www 2008: my %infohash=('resource.0.intoken' => $token,
2009: 'resource.0.checkintime' => $now,
2010: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 2011:
2012: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2013: return '';
2014: }
2015:
2016: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2017: &escape('Checkin - '.$token)) ne 'ok') {
2018: return '';
2019: }
2020:
2021: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 2022: }
2023:
2024: # --------------------------------------------- Set Expire Date for Spreadsheet
2025:
2026: sub expirespread {
2027: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 2028: my $cid=$env{'request.course.id'};
1.110 www 2029: if ($cid) {
2030: my $now=time;
2031: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 2032: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
2033: $env{'course.'.$cid.'.num'}.
1.110 www 2034: ':nohist_expirationdates:'.
2035: &escape($key).'='.$now,
1.620 albertel 2036: $env{'course.'.$cid.'.home'})
1.110 www 2037: }
2038: return 'ok';
1.14 www 2039: }
2040:
1.109 www 2041: # ----------------------------------------------------- Devalidate Spreadsheets
2042:
2043: sub devalidate {
1.325 www 2044: my ($symb,$uname,$udom)=@_;
1.620 albertel 2045: my $cid=$env{'request.course.id'};
1.109 www 2046: if ($cid) {
1.391 matthew 2047: # delete the stored spreadsheets for
2048: # - the student level sheet of this user in course's homespace
2049: # - the assessment level sheet for this resource
2050: # for this user in user's homespace
1.553 albertel 2051: # - current conditional state info
1.325 www 2052: my $key=$uname.':'.$udom.':';
1.109 www 2053: my $status=
1.299 matthew 2054: &del('nohist_calculatedsheets',
1.391 matthew 2055: [$key.'studentcalc:'],
1.620 albertel 2056: $env{'course.'.$cid.'.domain'},
2057: $env{'course.'.$cid.'.num'})
1.133 albertel 2058: .' '.
2059: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 2060: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 2061: unless ($status eq 'ok ok') {
2062: &logthis('Could not devalidate spreadsheet '.
1.325 www 2063: $uname.' at '.$udom.' for '.
1.109 www 2064: $symb.': '.$status);
1.133 albertel 2065: }
1.553 albertel 2066: &delenv('user.state.'.$cid);
1.109 www 2067: }
2068: }
2069:
1.265 albertel 2070: sub get_scalar {
2071: my ($string,$end) = @_;
2072: my $value;
2073: if ($$string =~ s/^([^&]*?)($end)/$2/) {
2074: $value = $1;
2075: } elsif ($$string =~ s/^([^&]*?)&//) {
2076: $value = $1;
2077: }
2078: return &unescape($value);
2079: }
2080:
2081: sub array2str {
2082: my (@array) = @_;
2083: my $result=&arrayref2str(\@array);
2084: $result=~s/^__ARRAY_REF__//;
2085: $result=~s/__END_ARRAY_REF__$//;
2086: return $result;
2087: }
2088:
1.204 albertel 2089: sub arrayref2str {
2090: my ($arrayref) = @_;
1.265 albertel 2091: my $result='__ARRAY_REF__';
1.204 albertel 2092: foreach my $elem (@$arrayref) {
1.265 albertel 2093: if(ref($elem) eq 'ARRAY') {
2094: $result.=&arrayref2str($elem).'&';
2095: } elsif(ref($elem) eq 'HASH') {
2096: $result.=&hashref2str($elem).'&';
2097: } elsif(ref($elem)) {
2098: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 2099: } else {
2100: $result.=&escape($elem).'&';
2101: }
2102: }
2103: $result=~s/\&$//;
1.265 albertel 2104: $result .= '__END_ARRAY_REF__';
1.204 albertel 2105: return $result;
2106: }
2107:
1.168 albertel 2108: sub hash2str {
1.204 albertel 2109: my (%hash) = @_;
2110: my $result=&hashref2str(\%hash);
1.265 albertel 2111: $result=~s/^__HASH_REF__//;
2112: $result=~s/__END_HASH_REF__$//;
1.204 albertel 2113: return $result;
2114: }
2115:
2116: sub hashref2str {
2117: my ($hashref)=@_;
1.265 albertel 2118: my $result='__HASH_REF__';
1.495 albertel 2119: foreach (sort(keys(%$hashref))) {
1.204 albertel 2120: if (ref($_) eq 'ARRAY') {
1.265 albertel 2121: $result.=&arrayref2str($_).'=';
1.204 albertel 2122: } elsif (ref($_) eq 'HASH') {
1.265 albertel 2123: $result.=&hashref2str($_).'=';
1.204 albertel 2124: } elsif (ref($_)) {
1.265 albertel 2125: $result.='=';
2126: #print("Got a ref of ".(ref($_))." skipping.");
1.204 albertel 2127: } else {
1.265 albertel 2128: if ($_) {$result.=&escape($_).'=';} else { last; }
1.204 albertel 2129: }
2130:
1.265 albertel 2131: if(ref($hashref->{$_}) eq 'ARRAY') {
2132: $result.=&arrayref2str($hashref->{$_}).'&';
2133: } elsif(ref($hashref->{$_}) eq 'HASH') {
2134: $result.=&hashref2str($hashref->{$_}).'&';
2135: } elsif(ref($hashref->{$_})) {
2136: $result.='&';
2137: #print("Got a ref of ".(ref($hashref->{$_}))." skipping.");
1.204 albertel 2138: } else {
1.265 albertel 2139: $result.=&escape($hashref->{$_}).'&';
1.204 albertel 2140: }
2141: }
1.168 albertel 2142: $result=~s/\&$//;
1.265 albertel 2143: $result .= '__END_HASH_REF__';
1.168 albertel 2144: return $result;
2145: }
2146:
2147: sub str2hash {
1.265 albertel 2148: my ($string)=@_;
2149: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
2150: return %$hash;
2151: }
2152:
2153: sub str2hashref {
1.168 albertel 2154: my ($string) = @_;
1.265 albertel 2155:
2156: my %hash;
2157:
2158: if($string !~ /^__HASH_REF__/) {
2159: if (! ($string eq '' || !defined($string))) {
2160: $hash{'error'}='Not hash reference';
2161: }
2162: return (\%hash, $string);
2163: }
2164:
2165: $string =~ s/^__HASH_REF__//;
2166:
2167: while($string !~ /^__END_HASH_REF__/) {
2168: #key
2169: my $key='';
2170: if($string =~ /^__HASH_REF__/) {
2171: ($key, $string)=&str2hashref($string);
2172: if(defined($key->{'error'})) {
2173: $hash{'error'}='Bad data';
2174: return (\%hash, $string);
2175: }
2176: } elsif($string =~ /^__ARRAY_REF__/) {
2177: ($key, $string)=&str2arrayref($string);
2178: if($key->[0] eq 'Array reference error') {
2179: $hash{'error'}='Bad data';
2180: return (\%hash, $string);
2181: }
2182: } else {
2183: $string =~ s/^(.*?)=//;
1.267 albertel 2184: $key=&unescape($1);
1.265 albertel 2185: }
2186: $string =~ s/^=//;
2187:
2188: #value
2189: my $value='';
2190: if($string =~ /^__HASH_REF__/) {
2191: ($value, $string)=&str2hashref($string);
2192: if(defined($value->{'error'})) {
2193: $hash{'error'}='Bad data';
2194: return (\%hash, $string);
2195: }
2196: } elsif($string =~ /^__ARRAY_REF__/) {
2197: ($value, $string)=&str2arrayref($string);
2198: if($value->[0] eq 'Array reference error') {
2199: $hash{'error'}='Bad data';
2200: return (\%hash, $string);
2201: }
2202: } else {
2203: $value=&get_scalar(\$string,'__END_HASH_REF__');
2204: }
2205: $string =~ s/^&//;
2206:
2207: $hash{$key}=$value;
1.204 albertel 2208: }
1.265 albertel 2209:
2210: $string =~ s/^__END_HASH_REF__//;
2211:
2212: return (\%hash, $string);
1.204 albertel 2213: }
2214:
2215: sub str2array {
1.265 albertel 2216: my ($string)=@_;
2217: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
2218: return @$array;
2219: }
2220:
2221: sub str2arrayref {
1.204 albertel 2222: my ($string) = @_;
1.265 albertel 2223: my @array;
2224:
2225: if($string !~ /^__ARRAY_REF__/) {
2226: if (! ($string eq '' || !defined($string))) {
2227: $array[0]='Array reference error';
2228: }
2229: return (\@array, $string);
2230: }
2231:
2232: $string =~ s/^__ARRAY_REF__//;
2233:
2234: while($string !~ /^__END_ARRAY_REF__/) {
2235: my $value='';
2236: if($string =~ /^__HASH_REF__/) {
2237: ($value, $string)=&str2hashref($string);
2238: if(defined($value->{'error'})) {
2239: $array[0] ='Array reference error';
2240: return (\@array, $string);
2241: }
2242: } elsif($string =~ /^__ARRAY_REF__/) {
2243: ($value, $string)=&str2arrayref($string);
2244: if($value->[0] eq 'Array reference error') {
2245: $array[0] ='Array reference error';
2246: return (\@array, $string);
2247: }
2248: } else {
2249: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
2250: }
2251: $string =~ s/^&//;
2252:
2253: push(@array, $value);
1.191 harris41 2254: }
1.265 albertel 2255:
2256: $string =~ s/^__END_ARRAY_REF__//;
2257:
2258: return (\@array, $string);
1.168 albertel 2259: }
2260:
1.167 albertel 2261: # -------------------------------------------------------------------Temp Store
2262:
1.168 albertel 2263: sub tmpreset {
2264: my ($symb,$namespace,$domain,$stuname) = @_;
2265: if (!$symb) {
2266: $symb=&symbread();
1.620 albertel 2267: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2268: }
2269: $symb=escape($symb);
2270:
1.620 albertel 2271: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 2272: $namespace=~s/\//\_/g;
2273: $namespace=~s/\W//g;
2274:
1.620 albertel 2275: if (!$domain) { $domain=$env{'user.domain'}; }
2276: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2277: if ($domain eq 'public' && $stuname eq 'public') {
2278: $stuname=$ENV{'REMOTE_ADDR'};
2279: }
1.168 albertel 2280: my $path=$perlvar{'lonDaemons'}.'/tmp';
2281: my %hash;
2282: if (tie(%hash,'GDBM_File',
2283: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2284: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2285: foreach my $key (keys %hash) {
1.180 albertel 2286: if ($key=~ /:$symb/) {
1.168 albertel 2287: delete($hash{$key});
2288: }
2289: }
2290: }
2291: }
2292:
1.167 albertel 2293: sub tmpstore {
1.168 albertel 2294: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2295:
2296: if (!$symb) {
2297: $symb=&symbread();
1.620 albertel 2298: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2299: }
2300: $symb=escape($symb);
2301:
2302: if (!$namespace) {
2303: # I don't think we would ever want to store this for a course.
2304: # it seems this will only be used if we don't have a course.
1.620 albertel 2305: #$namespace=$env{'request.course.id'};
1.168 albertel 2306: #if (!$namespace) {
1.620 albertel 2307: $namespace=$env{'request.state'};
1.168 albertel 2308: #}
2309: }
2310: $namespace=~s/\//\_/g;
2311: $namespace=~s/\W//g;
1.620 albertel 2312: if (!$domain) { $domain=$env{'user.domain'}; }
2313: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2314: if ($domain eq 'public' && $stuname eq 'public') {
2315: $stuname=$ENV{'REMOTE_ADDR'};
2316: }
1.168 albertel 2317: my $now=time;
2318: my %hash;
2319: my $path=$perlvar{'lonDaemons'}.'/tmp';
2320: if (tie(%hash,'GDBM_File',
2321: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2322: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2323: $hash{"version:$symb"}++;
2324: my $version=$hash{"version:$symb"};
2325: my $allkeys='';
2326: foreach my $key (keys(%$storehash)) {
2327: $allkeys.=$key.':';
1.591 albertel 2328: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 2329: }
2330: $hash{"$version:$symb:timestamp"}=$now;
2331: $allkeys.='timestamp';
2332: $hash{"$version:keys:$symb"}=$allkeys;
2333: if (untie(%hash)) {
2334: return 'ok';
2335: } else {
2336: return "error:$!";
2337: }
2338: } else {
2339: return "error:$!";
2340: }
2341: }
1.167 albertel 2342:
1.168 albertel 2343: # -----------------------------------------------------------------Temp Restore
1.167 albertel 2344:
1.168 albertel 2345: sub tmprestore {
2346: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 2347:
1.168 albertel 2348: if (!$symb) {
2349: $symb=&symbread();
1.620 albertel 2350: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2351: }
2352: $symb=escape($symb);
2353:
1.620 albertel 2354: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 2355:
1.620 albertel 2356: if (!$domain) { $domain=$env{'user.domain'}; }
2357: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2358: if ($domain eq 'public' && $stuname eq 'public') {
2359: $stuname=$ENV{'REMOTE_ADDR'};
2360: }
1.168 albertel 2361: my %returnhash;
2362: $namespace=~s/\//\_/g;
2363: $namespace=~s/\W//g;
2364: my %hash;
2365: my $path=$perlvar{'lonDaemons'}.'/tmp';
2366: if (tie(%hash,'GDBM_File',
2367: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2368: &GDBM_READER(),0640)) {
1.168 albertel 2369: my $version=$hash{"version:$symb"};
2370: $returnhash{'version'}=$version;
2371: my $scope;
2372: for ($scope=1;$scope<=$version;$scope++) {
2373: my $vkeys=$hash{"$scope:keys:$symb"};
2374: my @keys=split(/:/,$vkeys);
2375: my $key;
2376: $returnhash{"$scope:keys"}=$vkeys;
2377: foreach $key (@keys) {
1.591 albertel 2378: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
2379: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 2380: }
2381: }
1.168 albertel 2382: if (!(untie(%hash))) {
2383: return "error:$!";
2384: }
2385: } else {
2386: return "error:$!";
2387: }
2388: return %returnhash;
1.167 albertel 2389: }
2390:
1.9 www 2391: # ----------------------------------------------------------------------- Store
2392:
2393: sub store {
1.124 www 2394: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2395: my $home='';
2396:
1.168 albertel 2397: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2398:
1.213 www 2399: $symb=&symbclean($symb);
1.122 albertel 2400: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2401:
1.620 albertel 2402: if (!$domain) { $domain=$env{'user.domain'}; }
2403: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2404:
2405: &devalidate($symb,$stuname,$domain);
1.109 www 2406:
2407: $symb=escape($symb);
1.187 www 2408: if (!$namespace) {
1.620 albertel 2409: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2410: return '';
2411: }
2412: }
1.620 albertel 2413: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2414:
2415: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2416: $$storehash{'host'}=$perlvar{'lonHostID'};
2417:
1.12 www 2418: my $namevalue='';
1.191 harris41 2419: foreach (keys %$storehash) {
1.591 albertel 2420: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2421: }
1.12 www 2422: $namevalue=~s/\&$//;
1.187 www 2423: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 2424: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 2425: }
2426:
1.47 www 2427: # -------------------------------------------------------------- Critical Store
2428:
2429: sub cstore {
1.124 www 2430: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2431: my $home='';
2432:
1.168 albertel 2433: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2434:
1.213 www 2435: $symb=&symbclean($symb);
1.122 albertel 2436: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2437:
1.620 albertel 2438: if (!$domain) { $domain=$env{'user.domain'}; }
2439: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2440:
2441: &devalidate($symb,$stuname,$domain);
1.109 www 2442:
2443: $symb=escape($symb);
1.187 www 2444: if (!$namespace) {
1.620 albertel 2445: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2446: return '';
2447: }
2448: }
1.620 albertel 2449: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2450:
2451: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2452: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 2453:
1.47 www 2454: my $namevalue='';
1.191 harris41 2455: foreach (keys %$storehash) {
1.591 albertel 2456: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2457: }
1.47 www 2458: $namevalue=~s/\&$//;
1.187 www 2459: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 2460: return critical
2461: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 2462: }
2463:
1.9 www 2464: # --------------------------------------------------------------------- Restore
2465:
2466: sub restore {
1.124 www 2467: my ($symb,$namespace,$domain,$stuname) = @_;
2468: my $home='';
2469:
1.168 albertel 2470: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2471:
1.122 albertel 2472: if (!$symb) {
2473: unless ($symb=escape(&symbread())) { return ''; }
2474: } else {
1.213 www 2475: $symb=&escape(&symbclean($symb));
1.122 albertel 2476: }
1.188 www 2477: if (!$namespace) {
1.620 albertel 2478: unless ($namespace=$env{'request.course.id'}) {
1.188 www 2479: return '';
2480: }
2481: }
1.620 albertel 2482: if (!$domain) { $domain=$env{'user.domain'}; }
2483: if (!$stuname) { $stuname=$env{'user.name'}; }
2484: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 2485: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
2486:
1.12 www 2487: my %returnhash=();
1.191 harris41 2488: foreach (split(/\&/,$answer)) {
1.12 www 2489: my ($name,$value)=split(/\=/,$_);
1.591 albertel 2490: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 2491: }
1.75 www 2492: my $version;
2493: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.191 harris41 2494: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1.75 www 2495: $returnhash{$_}=$returnhash{$version.':'.$_};
1.191 harris41 2496: }
1.75 www 2497: }
1.13 www 2498: return %returnhash;
1.34 www 2499: }
2500:
2501: # ---------------------------------------------------------- Course Description
2502:
2503: sub coursedescription {
2504: my $courseid=shift;
2505: $courseid=~s/^\///;
1.49 www 2506: $courseid=~s/\_/\//g;
1.34 www 2507: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 2508: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 2509: my $normalid=$cdomain.'_'.$cnum;
2510: # need to always cache even if we get errors otherwise we keep
2511: # trying and trying and trying to get the course description.
2512: my %envhash=();
2513: my %returnhash=();
2514: $envhash{'course.'.$normalid.'.last_cache'}=time;
1.34 www 2515: if ($chome ne 'no_host') {
1.302 albertel 2516: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 2517: if (!exists($returnhash{'con_lost'})) {
2518: $returnhash{'home'}= $chome;
2519: $returnhash{'domain'} = $cdomain;
2520: $returnhash{'num'} = $cnum;
1.130 albertel 2521: while (my ($name,$value) = each %returnhash) {
1.53 www 2522: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 2523: }
1.270 www 2524: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 2525: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 2526: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 2527: $envhash{'course.'.$normalid.'.home'}=$chome;
2528: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
2529: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 2530: }
2531: }
1.302 albertel 2532: &appenv(%envhash);
2533: return %returnhash;
1.461 www 2534: }
2535:
2536: # -------------------------------------------------See if a user is privileged
2537:
2538: sub privileged {
2539: my ($username,$domain)=@_;
2540: my $rolesdump=&reply("dump:$domain:$username:roles",
2541: &homeserver($username,$domain));
2542: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
2543: my $now=time;
2544: if ($rolesdump ne '') {
2545: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2546: if ($_!~/^rolesdef_/) {
1.461 www 2547: my ($area,$role)=split(/=/,$_);
2548: $area=~s/\_\w\w$//;
2549: my ($trole,$tend,$tstart)=split(/_/,$role);
2550: if (($trole eq 'dc') || ($trole eq 'su')) {
2551: my $active=1;
2552: if ($tend) {
2553: if ($tend<$now) { $active=0; }
2554: }
2555: if ($tstart) {
2556: if ($tstart>$now) { $active=0; }
2557: }
2558: if ($active) { return 1; }
2559: }
2560: }
2561: }
2562: }
2563: return 0;
1.9 www 2564: }
1.1 albertel 2565:
1.103 harris41 2566: # -------------------------------------------------------- Get user privileges
1.11 www 2567:
2568: sub rolesinit {
2569: my ($domain,$username,$authhost)=@_;
2570: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 2571: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 2572: my %allroles=();
2573: my $now=time;
1.21 www 2574: my $userroles="user.login.time=$now\n";
1.11 www 2575:
2576: if ($rolesdump ne '') {
1.191 harris41 2577: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2578: if ($_!~/^rolesdef_/) {
1.11 www 2579: my ($area,$role)=split(/=/,$_);
1.587 albertel 2580: $area=~s/\_\w\w$//;
2581: my ($trole,$tend,$tstart);
2582: if ($role=~/^cr/) {
1.655 albertel 2583: if ($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|) {
2584: ($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
2585: ($tend,$tstart)=split('_',$trest);
2586: } else {
2587: $trole=$role;
2588: }
1.587 albertel 2589: } else {
2590: ($trole,$tend,$tstart)=split(/_/,$role);
2591: }
1.576 albertel 2592: $userroles.=&set_arearole($trole,$area,$tstart,$tend,$domain,$username);
1.567 raeburn 2593: if (($tend!=0) && ($tend<$now)) { $trole=''; }
2594: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 2595: if (($area ne '') && ($trole ne '')) {
1.347 albertel 2596: my $spec=$trole.'.'.$area;
2597: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2598: if ($trole =~ /^cr\//) {
1.567 raeburn 2599: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.347 albertel 2600: } else {
1.567 raeburn 2601: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 2602: }
1.12 www 2603: }
1.662 ! raeburn 2604: }
1.191 harris41 2605: }
1.567 raeburn 2606: my ($author,$adv) = &set_userprivs(\$userroles,\%allroles);
1.128 www 2607: $userroles.='user.adv='.$adv."\n".
2608: 'user.author='.$author."\n";
1.620 albertel 2609: $env{'user.adv'}=$adv;
1.11 www 2610: }
2611: return $userroles;
2612: }
2613:
1.567 raeburn 2614: sub set_arearole {
2615: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
2616: # log the associated role with the area
2617: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
2618: return 'user.role.'.$trole.'.'.$area.'='.$tstart.'.'.$tend."\n";
2619: }
2620:
2621: sub custom_roleprivs {
2622: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
2623: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
2624: my $homsvr=homeserver($rauthor,$rdomain);
2625: if ($hostname{$homsvr} ne '') {
2626: my ($rdummy,$roledef)=
2627: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
2628: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2629: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
2630: if (defined($syspriv)) {
2631: $$allroles{'cm./'}.=':'.$syspriv;
2632: $$allroles{$spec.'./'}.=':'.$syspriv;
2633: }
2634: if ($tdomain ne '') {
2635: if (defined($dompriv)) {
2636: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
2637: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
2638: }
2639: if (($trest ne '') && (defined($coursepriv))) {
2640: $$allroles{'cm.'.$area}.=':'.$coursepriv;
2641: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
2642: }
2643: }
2644: }
2645: }
2646: }
2647:
2648:
2649: sub standard_roleprivs {
2650: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
2651: if (defined($pr{$trole.':s'})) {
2652: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
2653: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
2654: }
2655: if ($tdomain ne '') {
2656: if (defined($pr{$trole.':d'})) {
2657: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2658: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2659: }
2660: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
2661: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
2662: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
2663: }
2664: }
2665: }
2666:
2667: sub set_userprivs {
2668: my ($userroles,$allroles) = @_;
2669: my $author=0;
2670: my $adv=0;
2671: foreach (keys %{$allroles}) {
2672: my %thesepriv=();
2673: if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
2674: foreach (split(/:/,$$allroles{$_})) {
2675: if ($_ ne '') {
2676: my ($privilege,$restrictions)=split(/&/,$_);
2677: if ($restrictions eq '') {
2678: $thesepriv{$privilege}='F';
2679: } elsif ($thesepriv{$privilege} ne 'F') {
2680: $thesepriv{$privilege}.=$restrictions;
2681: }
2682: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
2683: }
2684: }
2685: my $thesestr='';
2686: foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; }
2687: $$userroles.='user.priv.'.$_.'='.$thesestr."\n";
2688: }
2689: return ($author,$adv);
2690: }
2691:
1.12 www 2692: # --------------------------------------------------------------- get interface
2693:
2694: sub get {
1.131 albertel 2695: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 2696: my $items='';
1.191 harris41 2697: foreach (@$storearr) {
1.12 www 2698: $items.=escape($_).'&';
1.191 harris41 2699: }
1.12 www 2700: $items=~s/\&$//;
1.620 albertel 2701: if (!$udomain) { $udomain=$env{'user.domain'}; }
2702: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 2703: my $uhome=&homeserver($uname,$udomain);
2704:
1.133 albertel 2705: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2706: my @pairs=split(/\&/,$rep);
1.273 albertel 2707: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
2708: return @pairs;
2709: }
1.15 www 2710: my %returnhash=();
1.42 www 2711: my $i=0;
1.191 harris41 2712: foreach (@$storearr) {
1.557 albertel 2713: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 2714: $i++;
1.191 harris41 2715: }
1.15 www 2716: return %returnhash;
1.27 www 2717: }
2718:
2719: # --------------------------------------------------------------- del interface
2720:
2721: sub del {
1.133 albertel 2722: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 2723: my $items='';
1.191 harris41 2724: foreach (@$storearr) {
1.27 www 2725: $items.=escape($_).'&';
1.191 harris41 2726: }
1.27 www 2727: $items=~s/\&$//;
1.620 albertel 2728: if (!$udomain) { $udomain=$env{'user.domain'}; }
2729: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 2730: my $uhome=&homeserver($uname,$udomain);
2731:
2732: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2733: }
2734:
2735: # -------------------------------------------------------------- dump interface
2736:
2737: sub dump {
1.193 www 2738: my ($namespace,$udomain,$uname,$regexp)=@_;
1.620 albertel 2739: if (!$udomain) { $udomain=$env{'user.domain'}; }
2740: if (!$uname) { $uname=$env{'user.name'}; }
1.129 albertel 2741: my $uhome=&homeserver($uname,$udomain);
1.193 www 2742: if ($regexp) {
2743: $regexp=&escape($regexp);
2744: } else {
2745: $regexp='.';
2746: }
2747: my $rep=reply("dump:$udomain:$uname:$namespace:$regexp",$uhome);
1.12 www 2748: my @pairs=split(/\&/,$rep);
2749: my %returnhash=();
1.191 harris41 2750: foreach (@pairs) {
1.12 www 2751: my ($key,$value)=split(/=/,$_);
1.557 albertel 2752: $returnhash{unescape($key)}=&thaw_unescape($value);
1.318 matthew 2753: }
2754: return %returnhash;
1.407 www 2755: }
2756:
2757: # -------------------------------------------------------------- keys interface
2758:
2759: sub getkeys {
2760: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 2761: if (!$udomain) { $udomain=$env{'user.domain'}; }
2762: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 2763: my $uhome=&homeserver($uname,$udomain);
2764: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
2765: my @keyarray=();
2766: foreach (split(/\&/,$rep)) {
2767: push (@keyarray,&unescape($_));
2768: }
2769: return @keyarray;
1.318 matthew 2770: }
2771:
1.319 matthew 2772: # --------------------------------------------------------------- currentdump
2773: sub currentdump {
1.328 matthew 2774: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 2775: $courseid = $env{'request.course.id'} if (! defined($courseid));
2776: $sdom = $env{'user.domain'} if (! defined($sdom));
2777: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 2778: my $uhome = &homeserver($sname,$sdom);
2779: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 2780: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 2781: #
1.318 matthew 2782: my %returnhash=();
1.319 matthew 2783: #
2784: if ($rep eq "unknown_cmd") {
2785: # an old lond will not know currentdump
2786: # Do a dump and make it look like a currentdump
1.326 matthew 2787: my @tmp = &dump($courseid,$sdom,$sname,'.');
1.319 matthew 2788: return if ($tmp[0] =~ /^(error:|no_such_host)/);
2789: my %hash = @tmp;
2790: @tmp=();
1.424 matthew 2791: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 2792: } else {
2793: my @pairs=split(/\&/,$rep);
2794: foreach (@pairs) {
2795: my ($key,$value)=split(/=/,$_);
2796: my ($symb,$param) = split(/:/,$key);
2797: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 2798: &thaw_unescape($value);
1.319 matthew 2799: }
1.191 harris41 2800: }
1.12 www 2801: return %returnhash;
1.424 matthew 2802: }
2803:
2804: sub convert_dump_to_currentdump{
2805: my %hash = %{shift()};
2806: my %returnhash;
2807: # Code ripped from lond, essentially. The only difference
2808: # here is the unescaping done by lonnet::dump(). Conceivably
2809: # we might run in to problems with parameter names =~ /^v\./
2810: while (my ($key,$value) = each(%hash)) {
2811: my ($v,$symb,$param) = split(/:/,$key);
2812: next if ($v eq 'version' || $symb eq 'keys');
2813: next if (exists($returnhash{$symb}) &&
2814: exists($returnhash{$symb}->{$param}) &&
2815: $returnhash{$symb}->{'v.'.$param} > $v);
2816: $returnhash{$symb}->{$param}=$value;
2817: $returnhash{$symb}->{'v.'.$param}=$v;
2818: }
2819: #
2820: # Remove all of the keys in the hashes which keep track of
2821: # the version of the parameter.
2822: while (my ($symb,$param_hash) = each(%returnhash)) {
2823: # use a foreach because we are going to delete from the hash.
2824: foreach my $key (keys(%$param_hash)) {
2825: delete($param_hash->{$key}) if ($key =~ /^v\./);
2826: }
2827: }
2828: return \%returnhash;
1.12 www 2829: }
2830:
1.627 albertel 2831: # ------------------------------------------------------ critical inc interface
2832:
2833: sub cinc {
2834: return &inc(@_,'critical');
2835: }
2836:
1.449 matthew 2837: # --------------------------------------------------------------- inc interface
2838:
2839: sub inc {
1.627 albertel 2840: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 2841: if (!$udomain) { $udomain=$env{'user.domain'}; }
2842: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 2843: my $uhome=&homeserver($uname,$udomain);
2844: my $items='';
2845: if (! ref($store)) {
2846: # got a single value, so use that instead
2847: $items = &escape($store).'=&';
2848: } elsif (ref($store) eq 'SCALAR') {
2849: $items = &escape($$store).'=&';
2850: } elsif (ref($store) eq 'ARRAY') {
2851: $items = join('=&',map {&escape($_);} @{$store});
2852: } elsif (ref($store) eq 'HASH') {
2853: while (my($key,$value) = each(%{$store})) {
2854: $items.= &escape($key).'='.&escape($value).'&';
2855: }
2856: }
2857: $items=~s/\&$//;
1.627 albertel 2858: if ($critical) {
2859: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
2860: } else {
2861: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
2862: }
1.449 matthew 2863: }
2864:
1.12 www 2865: # --------------------------------------------------------------- put interface
2866:
2867: sub put {
1.134 albertel 2868: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2869: if (!$udomain) { $udomain=$env{'user.domain'}; }
2870: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 2871: my $uhome=&homeserver($uname,$udomain);
1.12 www 2872: my $items='';
1.191 harris41 2873: foreach (keys %$storehash) {
1.557 albertel 2874: $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2875: }
1.12 www 2876: $items=~s/\&$//;
1.134 albertel 2877: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 2878: }
2879:
1.631 albertel 2880: # ------------------------------------------------------------ newput interface
2881:
2882: sub newput {
2883: my ($namespace,$storehash,$udomain,$uname)=@_;
2884: if (!$udomain) { $udomain=$env{'user.domain'}; }
2885: if (!$uname) { $uname=$env{'user.name'}; }
2886: my $uhome=&homeserver($uname,$udomain);
2887: my $items='';
2888: foreach my $key (keys(%$storehash)) {
2889: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
2890: }
2891: $items=~s/\&$//;
2892: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
2893: }
2894:
2895: # --------------------------------------------------------- putstore interface
2896:
1.524 raeburn 2897: sub putstore {
2898: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2899: if (!$udomain) { $udomain=$env{'user.domain'}; }
2900: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 2901: my $uhome=&homeserver($uname,$udomain);
2902: my $items='';
2903: my %allitems = ();
2904: foreach (keys %$storehash) {
2905: if ($_ =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
2906: my $key = $1.':keys:'.$2;
2907: $allitems{$key} .= $3.':';
2908: }
1.591 albertel 2909: $items.=$_.'='.&freeze_escape($$storehash{$_}).'&';
1.524 raeburn 2910: }
2911: foreach (keys %allitems) {
2912: $allitems{$_} =~ s/\:$//;
2913: $items.= $_.'='.$allitems{$_}.'&';
2914: }
2915: $items=~s/\&$//;
2916: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
2917: }
2918:
1.47 www 2919: # ------------------------------------------------------ critical put interface
2920:
2921: sub cput {
1.134 albertel 2922: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2923: if (!$udomain) { $udomain=$env{'user.domain'}; }
2924: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 2925: my $uhome=&homeserver($uname,$udomain);
1.47 www 2926: my $items='';
1.191 harris41 2927: foreach (keys %$storehash) {
1.557 albertel 2928: $items.=escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2929: }
1.47 www 2930: $items=~s/\&$//;
1.134 albertel 2931: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 2932: }
2933:
2934: # -------------------------------------------------------------- eget interface
2935:
2936: sub eget {
1.133 albertel 2937: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 2938: my $items='';
1.191 harris41 2939: foreach (@$storearr) {
1.12 www 2940: $items.=escape($_).'&';
1.191 harris41 2941: }
1.12 www 2942: $items=~s/\&$//;
1.620 albertel 2943: if (!$udomain) { $udomain=$env{'user.domain'}; }
2944: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 2945: my $uhome=&homeserver($uname,$udomain);
2946: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 2947: my @pairs=split(/\&/,$rep);
2948: my %returnhash=();
1.42 www 2949: my $i=0;
1.191 harris41 2950: foreach (@$storearr) {
1.557 albertel 2951: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 2952: $i++;
1.191 harris41 2953: }
1.12 www 2954: return %returnhash;
2955: }
2956:
1.341 www 2957: # ---------------------------------------------- Custom access rule evaluation
2958:
2959: sub customaccess {
2960: my ($priv,$uri)=@_;
1.620 albertel 2961: my ($urole,$urealm)=split(/\./,$env{'request.role'});
1.343 www 2962: $urealm=~s/^\W//;
2963: my ($udom,$ucrs,$usec)=split(/\//,$urealm);
1.341 www 2964: my $access=0;
2965: foreach (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.342 www 2966: my ($effect,$realm,$role)=split(/\:/,$_);
1.343 www 2967: if ($role) {
2968: if ($role ne $urole) { next; }
2969: }
2970: foreach (split(/\s*\,\s*/,$realm)) {
2971: my ($tdom,$tcrs,$tsec)=split(/\_/,$_);
2972: if ($tdom) {
2973: if ($tdom ne $udom) { next; }
2974: }
2975: if ($tcrs) {
2976: if ($tcrs ne $ucrs) { next; }
2977: }
2978: if ($tsec) {
2979: if ($tsec ne $usec) { next; }
2980: }
2981: $access=($effect eq 'allow');
2982: last;
1.342 www 2983: }
1.402 bowersj2 2984: if ($realm eq '' && $role eq '') {
2985: $access=($effect eq 'allow');
2986: }
1.341 www 2987: }
2988: return $access;
2989: }
2990:
1.103 harris41 2991: # ------------------------------------------------- Check for a user privilege
1.12 www 2992:
2993: sub allowed {
1.579 albertel 2994: my ($priv,$uri,$symb)=@_;
1.439 www 2995: $uri=&deversion($uri);
1.152 www 2996: my $orguri=$uri;
1.52 www 2997: $uri=&declutter($uri);
1.545 banghart 2998:
2999:
3000:
1.620 albertel 3001: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 3002: # Free bre access to adm and meta resources
1.529 albertel 3003: if (((($uri=~/^adm\//) && ($uri !~ m|/bulletinboard$|))
3004: || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
1.14 www 3005: return 'F';
1.159 www 3006: }
3007:
1.545 banghart 3008: # Free bre access to user's own portfolio contents
1.546 albertel 3009: my ($space,$domain,$name,$dir)=split('/',$uri);
1.647 raeburn 3010: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.620 albertel 3011: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir)) {
1.545 banghart 3012: return 'F';
3013: }
3014:
1.159 www 3015: # Free bre to public access
3016:
3017: if ($priv eq 'bre') {
1.238 www 3018: my $copyright=&metadata($uri,'copyright');
1.620 albertel 3019: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 3020: return 'F';
3021: }
1.238 www 3022: if ($copyright eq 'priv') {
3023: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3024: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 3025: return '';
3026: }
3027: }
3028: if ($copyright eq 'domain') {
3029: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3030: unless (($env{'user.domain'} eq $1) ||
3031: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 3032: return '';
3033: }
1.262 matthew 3034: }
1.620 albertel 3035: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 3036: # Library role, so allow browsing of resources in this domain.
3037: return 'F';
1.238 www 3038: }
1.341 www 3039: if ($copyright eq 'custom') {
3040: unless (&customaccess($priv,$uri)) { return ''; }
3041: }
1.14 www 3042: }
1.264 matthew 3043: # Domain coordinator is trying to create a course
1.620 albertel 3044: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 3045: # uri is the requested domain in this case.
3046: # comparison to 'request.role.domain' shows if the user has selected
3047: # a role of dc for the domain in question.
1.620 albertel 3048: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 3049: }
1.29 www 3050:
1.52 www 3051: my $thisallowed='';
3052: my $statecond=0;
3053: my $courseprivid='';
3054:
3055: # Course
3056:
1.620 albertel 3057: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3058: $thisallowed.=$1;
3059: }
1.29 www 3060:
1.52 www 3061: # Domain
3062:
1.620 albertel 3063: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 3064: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3065: $thisallowed.=$1;
3066: }
1.52 www 3067:
3068: # Course: uri itself is a course
1.66 www 3069: my $courseuri=$uri;
3070: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 3071: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 3072:
1.620 albertel 3073: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 3074: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3075: $thisallowed.=$1;
3076: }
1.29 www 3077:
1.314 www 3078: # URI is an uploaded document for this course
1.611 albertel 3079: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 3080: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.620 albertel 3081: my $refuri=$env{'httpref.'.$orguri};
1.492 albertel 3082: if ($refuri) {
3083: if ($refuri =~ m|^/adm/|) {
3084: $thisallowed='F';
3085: }
3086: }
1.314 www 3087: }
1.492 albertel 3088:
1.52 www 3089: # Full access at system, domain or course-wide level? Exit.
1.29 www 3090:
3091: if ($thisallowed=~/F/) {
3092: return 'F';
3093: }
3094:
1.52 www 3095: # If this is generating or modifying users, exit with special codes
1.29 www 3096:
1.643 www 3097: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
3098: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 3099: my ($audom,$auname)=split('/',$uri);
1.643 www 3100: # no author name given, so this just checks on the general right to make a co-author in this domain
3101: unless ($auname) { return $thisallowed; }
3102: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 3103: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
3104: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
3105: ($audom ne $env{'request.role.domain'}))) { return ''; }
3106: }
1.52 www 3107: return $thisallowed;
3108: }
3109: #
1.103 harris41 3110: # Gathered so far: system, domain and course wide privileges
1.52 www 3111: #
3112: # Course: See if uri or referer is an individual resource that is part of
3113: # the course
3114:
1.620 albertel 3115: if ($env{'request.course.id'}) {
1.232 www 3116:
1.620 albertel 3117: $courseprivid=$env{'request.course.id'};
3118: if ($env{'request.course.sec'}) {
3119: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 3120: }
3121: $courseprivid=~s/\_/\//;
3122: my $checkreferer=1;
1.232 www 3123: my ($match,$cond)=&is_on_map($uri);
3124: if ($match) {
3125: $statecond=$cond;
1.620 albertel 3126: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3127: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3128: $thisallowed.=$1;
3129: $checkreferer=0;
3130: }
1.29 www 3131: }
1.83 www 3132:
1.148 www 3133: if ($checkreferer) {
1.620 albertel 3134: my $refuri=$env{'httpref.'.$orguri};
1.148 www 3135: unless ($refuri) {
1.620 albertel 3136: foreach (keys %env) {
1.148 www 3137: if ($_=~/^httpref\..*\*/) {
3138: my $pattern=$_;
1.156 www 3139: $pattern=~s/^httpref\.\/res\///;
1.148 www 3140: $pattern=~s/\*/\[\^\/\]\+/g;
3141: $pattern=~s/\//\\\//g;
1.152 www 3142: if ($orguri=~/$pattern/) {
1.620 albertel 3143: $refuri=$env{$_};
1.148 www 3144: }
3145: }
1.191 harris41 3146: }
1.148 www 3147: }
1.232 www 3148:
1.148 www 3149: if ($refuri) {
1.152 www 3150: $refuri=&declutter($refuri);
1.232 www 3151: my ($match,$cond)=&is_on_map($refuri);
3152: if ($match) {
3153: my $refstatecond=$cond;
1.620 albertel 3154: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3155: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3156: $thisallowed.=$1;
1.53 www 3157: $uri=$refuri;
3158: $statecond=$refstatecond;
1.52 www 3159: }
3160: }
1.148 www 3161: }
1.29 www 3162: }
1.52 www 3163: }
1.29 www 3164:
1.52 www 3165: #
1.103 harris41 3166: # Gathered now: all privileges that could apply, and condition number
1.52 www 3167: #
3168: #
3169: # Full or no access?
3170: #
1.29 www 3171:
1.52 www 3172: if ($thisallowed=~/F/) {
3173: return 'F';
3174: }
1.29 www 3175:
1.52 www 3176: unless ($thisallowed) {
3177: return '';
3178: }
1.29 www 3179:
1.52 www 3180: # Restrictions exist, deal with them
3181: #
3182: # C:according to course preferences
3183: # R:according to resource settings
3184: # L:unless locked
3185: # X:according to user session state
3186: #
3187:
3188: # Possibly locked functionality, check all courses
1.54 www 3189: # Locks might take effect only after 10 minutes cache expiration for other
3190: # courses, and 2 minutes for current course
1.52 www 3191:
3192: my $envkey;
3193: if ($thisallowed=~/L/) {
1.620 albertel 3194: foreach $envkey (keys %env) {
1.54 www 3195: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
3196: my $courseid=$2;
3197: my $roleid=$1.'.'.$2;
1.92 www 3198: $courseid=~s/^\///;
1.54 www 3199: my $expiretime=600;
1.620 albertel 3200: if ($env{'request.role'} eq $roleid) {
1.54 www 3201: $expiretime=120;
3202: }
3203: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
3204: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 3205: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.54 www 3206: &coursedescription($courseid);
3207: }
1.620 albertel 3208: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
3209: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
3210: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
3211: &log($env{'user.domain'},$env{'user.name'},
3212: $env{'user.home'},
1.57 www 3213: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 3214: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3215: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3216: return '';
3217: }
3218: }
1.620 albertel 3219: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
3220: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
3221: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
3222: &log($env{'user.domain'},$env{'user.name'},
3223: $env{'user.home'},
1.57 www 3224: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 3225: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3226: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3227: return '';
3228: }
3229: }
3230: }
1.29 www 3231: }
1.52 www 3232: }
3233:
3234: #
3235: # Rest of the restrictions depend on selected course
3236: #
3237:
1.620 albertel 3238: unless ($env{'request.course.id'}) {
1.52 www 3239: return '1';
3240: }
1.29 www 3241:
1.52 www 3242: #
3243: # Now user is definitely in a course
3244: #
1.53 www 3245:
3246:
3247: # Course preferences
3248:
3249: if ($thisallowed=~/C/) {
1.620 albertel 3250: my $rolecode=(split(/\./,$env{'request.role'}))[0];
3251: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
3252: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 3253: =~/\Q$rolecode\E/) {
1.620 albertel 3254: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.57 www 3255: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
1.620 albertel 3256: $env{'request.course.id'});
1.237 www 3257: return '';
3258: }
3259:
1.620 albertel 3260: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 3261: =~/\Q$unamedom\E/) {
1.620 albertel 3262: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.237 www 3263: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
1.620 albertel 3264: $env{'request.course.id'});
1.54 www 3265: return '';
3266: }
1.53 www 3267: }
3268:
3269: # Resource preferences
3270:
3271: if ($thisallowed=~/R/) {
1.620 albertel 3272: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 3273: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.620 albertel 3274: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.57 www 3275: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
1.341 www 3276: return '';
1.54 www 3277: }
1.53 www 3278: }
1.30 www 3279:
1.246 www 3280: # Restricted by state or randomout?
1.30 www 3281:
1.52 www 3282: if ($thisallowed=~/X/) {
1.620 albertel 3283: if ($env{'acc.randomout'}) {
1.579 albertel 3284: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 3285: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 3286: return '';
3287: }
1.247 www 3288: }
3289: if (&condval($statecond)) {
1.52 www 3290: return '2';
3291: } else {
3292: return '';
3293: }
3294: }
1.30 www 3295:
1.52 www 3296: return 'F';
1.232 www 3297: }
3298:
3299: # --------------------------------------------------- Is a resource on the map?
3300:
3301: sub is_on_map {
1.659 albertel 3302: my $uri=&deversion(&declutter(shift));
1.232 www 3303: my @uriparts=split(/\//,$uri);
3304: my $filename=$uriparts[$#uriparts];
3305: my $pathname=$uri;
1.289 bowersj2 3306: $pathname=~s|/\Q$filename\E$||;
1.332 www 3307: $pathname=~s/^adm\/wrapper\///;
1.289 bowersj2 3308: #Trying to find the conditional for the file
1.620 albertel 3309: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 3310: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 3311: if ($match) {
1.289 bowersj2 3312: return (1,$1);
3313: } else {
1.434 www 3314: return (0,0);
1.289 bowersj2 3315: }
1.12 www 3316: }
3317:
1.427 www 3318: # --------------------------------------------------------- Get symb from alias
3319:
3320: sub get_symb_from_alias {
3321: my $symb=shift;
3322: my ($map,$resid,$url)=&decode_symb($symb);
3323: # Already is a symb
3324: if ($url) { return $symb; }
3325: # Must be an alias
3326: my $aliassymb='';
3327: my %bighash;
1.620 albertel 3328: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 3329: &GDBM_READER(),0640)) {
3330: my $rid=$bighash{'mapalias_'.$symb};
3331: if ($rid) {
3332: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 3333: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
3334: $resid,$bighash{'src_'.$rid});
1.427 www 3335: }
3336: untie %bighash;
3337: }
3338: return $aliassymb;
3339: }
3340:
1.12 www 3341: # ----------------------------------------------------------------- Define Role
3342:
3343: sub definerole {
3344: if (allowed('mcr','/')) {
3345: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.392 www 3346: foreach (split(':',$sysrole)) {
1.21 www 3347: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3348: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
3349: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
3350: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3351: return "refused:s:$crole&$cqual";
3352: }
3353: }
1.191 harris41 3354: }
1.392 www 3355: foreach (split(':',$domrole)) {
1.21 www 3356: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3357: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
3358: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
3359: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 3360: return "refused:d:$crole&$cqual";
3361: }
3362: }
1.191 harris41 3363: }
1.392 www 3364: foreach (split(':',$courole)) {
1.21 www 3365: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3366: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
3367: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
3368: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3369: return "refused:c:$crole&$cqual";
3370: }
3371: }
1.191 harris41 3372: }
1.620 albertel 3373: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
3374: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 3375: "rolesdef_$rolename=".
3376: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 3377: return reply($command,$env{'user.home'});
1.12 www 3378: } else {
3379: return 'refused';
3380: }
1.105 harris41 3381: }
3382:
3383: # ---------------- Make a metadata query against the network of library servers
3384:
3385: sub metadata_query {
1.244 matthew 3386: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 3387: my %rhash;
1.244 matthew 3388: my @server_list = (defined($server_array) ? @$server_array
3389: : keys(%libserv) );
3390: for my $server (@server_list) {
1.118 harris41 3391: unless ($custom or $customshow) {
3392: my $reply=&reply("querysend:".&escape($query),$server);
3393: $rhash{$server}=$reply;
3394: }
3395: else {
3396: my $reply=&reply("querysend:".&escape($query).':'.
3397: &escape($custom).':'.&escape($customshow),
3398: $server);
3399: $rhash{$server}=$reply;
3400: }
1.112 harris41 3401: }
1.118 harris41 3402: return \%rhash;
1.240 www 3403: }
3404:
3405: # ----------------------------------------- Send log queries and wait for reply
3406:
3407: sub log_query {
3408: my ($uname,$udom,$query,%filters)=@_;
3409: my $uhome=&homeserver($uname,$udom);
3410: if ($uhome eq 'no_host') { return 'error: no_host'; }
3411: my $uhost=$hostname{$uhome};
1.241 www 3412: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys %filters));
1.240 www 3413: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
3414: $uhome);
1.479 albertel 3415: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 3416: return get_query_reply($queryid);
3417: }
3418:
1.508 raeburn 3419: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 3420:
3421: sub fetch_enrollment_query {
1.511 raeburn 3422: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 3423: my $homeserver;
1.547 raeburn 3424: my $maxtries = 1;
1.508 raeburn 3425: if ($context eq 'automated') {
3426: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 3427: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 3428: } else {
3429: $homeserver = &homeserver($cnum,$dom);
3430: }
1.506 raeburn 3431: my $host=$hostname{$homeserver};
3432: my $cmd = '';
3433: foreach (keys %{$affiliatesref}) {
1.508 raeburn 3434: $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%';
1.506 raeburn 3435: }
3436: $cmd =~ s/%%$//;
3437: $cmd = &escape($cmd);
3438: my $query = 'fetchenrollment';
1.620 albertel 3439: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 3440: unless ($queryid=~/^\Q$host\E\_/) {
3441: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
3442: return 'error: '.$queryid;
3443: }
1.506 raeburn 3444: my $reply = &get_query_reply($queryid);
1.547 raeburn 3445: my $tries = 1;
3446: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
3447: $reply = &get_query_reply($queryid);
3448: $tries ++;
3449: }
1.526 raeburn 3450: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 3451: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 3452: } else {
1.515 raeburn 3453: my @responses = split/:/,$reply;
3454: if ($homeserver eq $perlvar{'lonHostID'}) {
3455: foreach (@responses) {
3456: my ($key,$value) = split/=/,$_;
3457: $$replyref{$key} = $value;
3458: }
3459: } else {
1.506 raeburn 3460: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
3461: foreach (@responses) {
3462: my ($key,$value) = split/=/,$_;
3463: $$replyref{$key} = $value;
3464: if ($value > 0) {
3465: foreach (@{$$affiliatesref{$key}}) {
3466: my $filename = $dom.'_'.$key.'_'.$_.'_classlist.xml';
3467: my $destname = $pathname.'/'.$filename;
3468: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 3469: if ($xml_classlist =~ /^error/) {
3470: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
3471: } else {
1.506 raeburn 3472: if ( open(FILE,">$destname") ) {
3473: print FILE &unescape($xml_classlist);
3474: close(FILE);
1.526 raeburn 3475: } else {
3476: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 3477: }
3478: }
3479: }
3480: }
3481: }
3482: }
3483: return 'ok';
3484: }
3485: return 'error';
3486: }
3487:
1.242 www 3488: sub get_query_reply {
3489: my $queryid=shift;
1.240 www 3490: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
3491: my $reply='';
3492: for (1..100) {
3493: sleep 2;
3494: if (-e $replyfile.'.end') {
1.448 albertel 3495: if (open(my $fh,$replyfile)) {
1.240 www 3496: $reply.=<$fh>;
1.448 albertel 3497: close($fh);
1.240 www 3498: } else { return 'error: reply_file_error'; }
1.242 www 3499: return &unescape($reply);
3500: }
1.240 www 3501: }
1.242 www 3502: return 'timeout:'.$queryid;
1.240 www 3503: }
3504:
3505: sub courselog_query {
1.241 www 3506: #
3507: # possible filters:
3508: # url: url or symb
3509: # username
3510: # domain
3511: # action: view, submit, grade
3512: # start: timestamp
3513: # end: timestamp
3514: #
1.240 www 3515: my (%filters)=@_;
1.620 albertel 3516: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 3517: if ($filters{'url'}) {
3518: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
3519: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
3520: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
3521: }
1.620 albertel 3522: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
3523: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 3524: return &log_query($cname,$cdom,'courselog',%filters);
3525: }
3526:
3527: sub userlog_query {
3528: my ($uname,$udom,%filters)=@_;
3529: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 3530: }
3531:
1.506 raeburn 3532: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
3533:
3534: sub auto_run {
1.508 raeburn 3535: my ($cnum,$cdom) = @_;
3536: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 3537: my $response = &reply('autorun:'.$cdom,$homeserver);
1.506 raeburn 3538: return $response;
3539: }
3540:
3541: sub auto_get_sections {
1.508 raeburn 3542: my ($cnum,$cdom,$inst_coursecode) = @_;
3543: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 3544: my @secs = ();
1.511 raeburn 3545: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 3546: unless ($response eq 'refused') {
3547: @secs = split/:/,$response;
3548: }
3549: return @secs;
3550: }
3551:
3552: sub auto_new_course {
1.508 raeburn 3553: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
3554: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 3555: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 3556: return $response;
3557: }
3558:
3559: sub auto_validate_courseID {
1.508 raeburn 3560: my ($cnum,$cdom,$inst_course_id) = @_;
3561: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 3562: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 3563: return $response;
3564: }
3565:
3566: sub auto_create_password {
1.508 raeburn 3567: my ($cnum,$cdom,$authparam) = @_;
3568: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 3569: my $create_passwd = 0;
3570: my $authchk = '';
1.511 raeburn 3571: my $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
1.506 raeburn 3572: if ($response eq 'refused') {
3573: $authchk = 'refused';
3574: } else {
3575: ($authparam,$create_passwd,$authchk) = split/:/,$response;
3576: }
3577: return ($authparam,$create_passwd,$authchk);
3578: }
3579:
1.521 raeburn 3580: sub auto_instcode_format {
3581: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_;
3582: my $courses = '';
3583: my $homeserver;
3584: if ($caller eq 'global') {
1.584 raeburn 3585: foreach my $tryserver (keys %libserv) {
3586: if ($hostdom{$tryserver} eq $codedom) {
3587: $homeserver = $tryserver;
3588: last;
3589: }
3590: }
1.620 albertel 3591: if (($env{'user.name'}) && ($env{'user.domain'} eq $codedom)) {
3592: $homeserver = &homeserver($env{'user.name'},$codedom);
1.584 raeburn 3593: }
1.521 raeburn 3594: } else {
3595: $homeserver = &homeserver($caller,$codedom);
3596: }
3597: foreach (keys %{$instcodes}) {
3598: $courses .= &escape($_).'='.&escape($$instcodes{$_}).'&';
3599: }
3600: chop($courses);
3601: my $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$homeserver);
3602: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
3603: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) = split/:/,$response;
3604: %{$codes} = &str2hash($codes_str);
3605: @{$codetitles} = &str2array($codetitles_str);
3606: %{$cat_titles} = &str2hash($cat_titles_str);
3607: %{$cat_order} = &str2hash($cat_order_str);
3608: return 'ok';
3609: }
3610: return $response;
3611: }
3612:
1.12 www 3613: # ------------------------------------------------------------------ Plain Text
3614:
3615: sub plaintext {
1.22 www 3616: my $short=shift;
1.414 www 3617: return &mt($prp{$short});
1.12 www 3618: }
3619:
3620: # ----------------------------------------------------------------- Assign Role
3621:
3622: sub assignrole {
1.357 www 3623: my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
1.21 www 3624: my $mrole;
3625: if ($role =~ /^cr\//) {
1.393 www 3626: my $cwosec=$url;
3627: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
3628: unless (&allowed('ccr',$cwosec)) {
1.104 www 3629: &logthis('Refused custom assignrole: '.
3630: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 3631: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 3632: return 'refused';
3633: }
1.21 www 3634: $mrole='cr';
3635: } else {
1.82 www 3636: my $cwosec=$url;
1.83 www 3637: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
1.373 www 3638: unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) {
1.104 www 3639: &logthis('Refused assignrole: '.
3640: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 3641: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 3642: return 'refused';
3643: }
1.21 www 3644: $mrole=$role;
3645: }
1.620 albertel 3646: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 3647: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 3648: if ($end) { $command.='_'.$end; }
1.21 www 3649: if ($start) {
3650: if ($end) {
1.81 www 3651: $command.='_'.$start;
1.21 www 3652: } else {
1.81 www 3653: $command.='_0_'.$start;
1.21 www 3654: }
3655: }
1.357 www 3656: # actually delete
3657: if ($deleteflag) {
1.373 www 3658: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 3659: # modify command to delete the role
1.620 albertel 3660: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 3661: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 3662: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 3663: # set start and finish to negative values for userrolelog
3664: $start=-1;
3665: $end=-1;
3666: }
3667: }
3668: # send command
1.349 www 3669: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 3670: # log new user role if status is ok
1.349 www 3671: if ($answer eq 'ok') {
3672: &userrolelog($mrole,$uname,$udom,$url,$start,$end);
3673: }
3674: return $answer;
1.169 harris41 3675: }
3676:
3677: # -------------------------------------------------- Modify user authentication
1.197 www 3678: # Overrides without validation
3679:
1.169 harris41 3680: sub modifyuserauth {
3681: my ($udom,$uname,$umode,$upass)=@_;
3682: my $uhome=&homeserver($uname,$udom);
1.197 www 3683: unless (&allowed('mau',$udom)) { return 'refused'; }
3684: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 3685: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
3686: ' in domain '.$env{'request.role.domain'});
1.169 harris41 3687: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
3688: &escape($upass),$uhome);
1.620 albertel 3689: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 3690: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
3691: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
3692: &log($udom,,$uname,$uhome,
1.620 albertel 3693: 'Authentication changed by '.$env{'user.domain'}.', '.
3694: $env{'user.name'}.', '.$umode.
1.197 www 3695: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 3696: unless ($reply eq 'ok') {
1.197 www 3697: &logthis('Authentication mode error: '.$reply);
1.169 harris41 3698: return 'error: '.$reply;
3699: }
1.170 harris41 3700: return 'ok';
1.80 www 3701: }
3702:
1.81 www 3703: # --------------------------------------------------------------- Modify a user
1.80 www 3704:
1.81 www 3705: sub modifyuser {
1.206 matthew 3706: my ($udom, $uname, $uid,
3707: $umode, $upass, $first,
3708: $middle, $last, $gene,
1.387 www 3709: $forceid, $desiredhome, $email)=@_;
1.198 www 3710: $udom=~s/\W//g;
3711: $uname=~s/\W//g;
1.81 www 3712: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 3713: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 3714: $last.', '.$gene.'(forceid: '.$forceid.')'.
3715: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
3716: ' desiredhome not specified').
1.620 albertel 3717: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
3718: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 3719: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 3720: # ----------------------------------------------------------------- Create User
1.406 albertel 3721: if (($uhome eq 'no_host') &&
3722: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 3723: my $unhome='';
1.209 matthew 3724: if (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) {
3725: $unhome = $desiredhome;
1.620 albertel 3726: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
3727: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 3728: } else { # load balancing routine for determining $unhome
1.80 www 3729: my $tryserver;
1.81 www 3730: my $loadm=10000000;
1.80 www 3731: foreach $tryserver (keys %libserv) {
3732: if ($hostdom{$tryserver} eq $udom) {
3733: my $answer=reply('load',$tryserver);
3734: if (($answer=~/\d+/) && ($answer<$loadm)) {
3735: $loadm=$answer;
3736: $unhome=$tryserver;
3737: }
3738: }
3739: }
3740: }
3741: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 3742: return 'error: unable to find a home server for '.$uname.
3743: ' in domain '.$udom;
1.80 www 3744: }
3745: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
3746: &escape($upass),$unhome);
3747: unless ($reply eq 'ok') {
3748: return 'error: '.$reply;
3749: }
1.230 stredwic 3750: $uhome=&homeserver($uname,$udom,'true');
1.80 www 3751: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 3752: return 'error: unable verify users home machine.';
1.80 www 3753: }
1.209 matthew 3754: } # End of creation of new user
1.80 www 3755: # ---------------------------------------------------------------------- Add ID
3756: if ($uid) {
3757: $uid=~tr/A-Z/a-z/;
3758: my %uidhash=&idrget($udom,$uname);
1.196 www 3759: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
3760: && (!$forceid)) {
1.80 www 3761: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 3762: return 'error: user id "'.$uid.'" does not match '.
3763: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 3764: }
3765: } else {
3766: &idput($udom,($uname => $uid));
3767: }
3768: }
3769: # -------------------------------------------------------------- Add names, etc
1.313 matthew 3770: my @tmp=&get('environment',
1.134 albertel 3771: ['firstname','middlename','lastname','generation'],
3772: $udom,$uname);
1.313 matthew 3773: my %names;
3774: if ($tmp[0] =~ m/^error:.*/) {
3775: %names=();
3776: } else {
3777: %names = @tmp;
3778: }
1.388 www 3779: #
3780: # Make sure to not trash student environment if instructor does not bother
3781: # to supply name and email information
3782: #
3783: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 3784: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 3785: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 3786: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 3787: if ($email) {
3788: $email=~s/[^\w\@\.\-\,]//gs;
3789: if ($email=~/\@/) { $names{'notification'} = $email;
3790: $names{'critnotification'} = $email;
3791: $names{'permanentemail'} = $email; }
3792: }
1.134 albertel 3793: my $reply = &put('environment', \%names, $udom,$uname);
3794: if ($reply ne 'ok') { return 'error: '.$reply; }
1.81 www 3795: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 3796: $umode.', '.$first.', '.$middle.', '.
3797: $last.', '.$gene.' by '.
1.620 albertel 3798: $env{'user.name'}.' at '.$env{'user.domain'});
1.134 albertel 3799: return 'ok';
1.80 www 3800: }
3801:
1.81 www 3802: # -------------------------------------------------------------- Modify student
1.80 www 3803:
1.81 www 3804: sub modifystudent {
3805: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.515 raeburn 3806: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid)=@_;
1.455 albertel 3807: if (!$cid) {
1.620 albertel 3808: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 3809: return 'not_in_class';
3810: }
1.80 www 3811: }
3812: # --------------------------------------------------------------- Make the user
1.81 www 3813: my $reply=&modifyuser
1.209 matthew 3814: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 3815: $desiredhome,$email);
1.80 www 3816: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 3817: # This will cause &modify_student_enrollment to get the uid from the
3818: # students environment
3819: $uid = undef if (!$forceid);
1.455 albertel 3820: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.515 raeburn 3821: $gene,$usec,$end,$start,$type,$locktype,$cid);
1.297 matthew 3822: return $reply;
3823: }
3824:
3825: sub modify_student_enrollment {
1.515 raeburn 3826: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid) = @_;
1.455 albertel 3827: my ($cdom,$cnum,$chome);
3828: if (!$cid) {
1.620 albertel 3829: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 3830: return 'not_in_class';
3831: }
1.620 albertel 3832: $cdom=$env{'course.'.$cid.'.domain'};
3833: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 3834: } else {
3835: ($cdom,$cnum)=split(/_/,$cid);
3836: }
1.620 albertel 3837: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 3838: if (!$chome) {
1.457 raeburn 3839: $chome=&homeserver($cnum,$cdom);
1.297 matthew 3840: }
1.455 albertel 3841: if (!$chome) { return 'unknown_course'; }
1.297 matthew 3842: # Make sure the user exists
1.81 www 3843: my $uhome=&homeserver($uname,$udom);
3844: if (($uhome eq '') || ($uhome eq 'no_host')) {
3845: return 'error: no such user';
3846: }
1.297 matthew 3847: # Get student data if we were not given enough information
3848: if (!defined($first) || $first eq '' ||
3849: !defined($last) || $last eq '' ||
3850: !defined($uid) || $uid eq '' ||
3851: !defined($middle) || $middle eq '' ||
3852: !defined($gene) || $gene eq '') {
1.294 matthew 3853: # They did not supply us with enough data to enroll the student, so
3854: # we need to pick up more information.
1.297 matthew 3855: my %tmp = &get('environment',
1.294 matthew 3856: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 3857: ,$udom,$uname);
3858:
1.455 albertel 3859: #foreach (keys(%tmp)) {
3860: # &logthis("key $_ = ".$tmp{$_});
3861: #}
1.294 matthew 3862: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
3863: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
3864: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 3865: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 3866: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
3867: }
1.556 albertel 3868: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 3869: my $reply=cput('classlist',
3870: {"$uname:$udom" =>
1.515 raeburn 3871: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 3872: $cdom,$cnum);
1.81 www 3873: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
3874: return 'error: '.$reply;
1.652 albertel 3875: } else {
3876: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 3877: }
1.297 matthew 3878: # Add student role to user
1.83 www 3879: my $uurl='/'.$cid;
1.81 www 3880: $uurl=~s/\_/\//g;
3881: if ($usec) {
3882: $uurl.='/'.$usec;
3883: }
3884: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 3885: }
3886:
1.556 albertel 3887: sub format_name {
3888: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
3889: my $name;
3890: if ($first ne 'lastname') {
3891: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
3892: } else {
3893: if ($lastname=~/\S/) {
3894: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
3895: $name=~s/\s+,/,/;
3896: } else {
3897: $name.= $firstname.' '.$middlename.' '.$generation;
3898: }
3899: }
3900: $name=~s/^\s+//;
3901: $name=~s/\s+$//;
3902: $name=~s/\s+/ /g;
3903: return $name;
3904: }
3905:
1.84 www 3906: # ------------------------------------------------- Write to course preferences
3907:
3908: sub writecoursepref {
3909: my ($courseid,%prefs)=@_;
3910: $courseid=~s/^\///;
3911: $courseid=~s/\_/\//g;
3912: my ($cdomain,$cnum)=split(/\//,$courseid);
3913: my $chome=homeserver($cnum,$cdomain);
3914: if (($chome eq '') || ($chome eq 'no_host')) {
3915: return 'error: no such course';
3916: }
3917: my $cstring='';
1.191 harris41 3918: foreach (keys %prefs) {
1.84 www 3919: $cstring.=escape($_).'='.escape($prefs{$_}).'&';
1.191 harris41 3920: }
1.84 www 3921: $cstring=~s/\&$//;
3922: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
3923: }
3924:
3925: # ---------------------------------------------------------- Make/modify course
3926:
3927: sub createcourse {
1.571 raeburn 3928: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner)=@_;
1.84 www 3929: $url=&declutter($url);
3930: my $cid='';
1.264 matthew 3931: unless (&allowed('ccc',$udom)) {
1.84 www 3932: return 'refused';
3933: }
3934: # ------------------------------------------------------------------- Create ID
3935: my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
3936: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
3937: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 3938: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 3939: unless (($uhome eq '') || ($uhome eq 'no_host')) {
3940: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
3941: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 3942: $uhome=&homeserver($uname,$udom,'true');
1.84 www 3943: unless (($uhome eq '') || ($uhome eq 'no_host')) {
3944: return 'error: unable to generate unique course-ID';
3945: }
3946: }
1.264 matthew 3947: # ------------------------------------------------ Check supplied server name
1.620 albertel 3948: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.264 matthew 3949: if (! exists($libserv{$course_server})) {
3950: return 'error:bad server name '.$course_server;
3951: }
1.84 www 3952: # ------------------------------------------------------------- Make the course
3953: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 3954: $course_server);
1.84 www 3955: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 3956: $uhome=&homeserver($uname,$udom,'true');
1.84 www 3957: if (($uhome eq '') || ($uhome eq 'no_host')) {
3958: return 'error: no such course';
3959: }
1.271 www 3960: # ----------------------------------------------------------------- Course made
1.516 raeburn 3961: # log existence
3962: &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
1.571 raeburn 3963: ':'.&escape($inst_code).':'.&escape($course_owner),$uhome);
1.358 www 3964: &flushcourselogs();
3965: # set toplevel url
1.271 www 3966: my $topurl=$url;
3967: unless ($nonstandard) {
3968: # ------------------------------------------ For standard courses, make top url
3969: my $mapurl=&clutter($url);
1.278 www 3970: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 3971: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 3972: <map>
3973: <resource id="1" type="start"></resource>
3974: <resource id="2" src="$mapurl"></resource>
3975: <resource id="3" type="finish"></resource>
3976: <link index="1" from="1" to="2"></link>
3977: <link index="2" from="2" to="3"></link>
3978: </map>
3979: ENDINITMAP
3980: $topurl=&declutter(
1.638 albertel 3981: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 3982: );
3983: }
3984: # ----------------------------------------------------------- Write preferences
1.84 www 3985: &writecoursepref($udom.'_'.$uname,
3986: ('description' => $description,
1.271 www 3987: 'url' => $topurl));
1.84 www 3988: return '/'.$udom.'/'.$uname;
3989: }
3990:
1.21 www 3991: # ---------------------------------------------------------- Assign Custom Role
3992:
3993: sub assigncustomrole {
1.357 www 3994: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
1.21 www 3995: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.357 www 3996: $end,$start,$deleteflag);
1.21 www 3997: }
3998:
3999: # ----------------------------------------------------------------- Revoke Role
4000:
4001: sub revokerole {
1.357 www 4002: my ($udom,$uname,$url,$role,$deleteflag)=@_;
1.21 www 4003: my $now=time;
1.357 www 4004: return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
1.21 www 4005: }
4006:
4007: # ---------------------------------------------------------- Revoke Custom Role
4008:
4009: sub revokecustomrole {
1.357 www 4010: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
1.21 www 4011: my $now=time;
1.357 www 4012: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
4013: $deleteflag);
1.17 www 4014: }
4015:
1.533 banghart 4016: # ------------------------------------------------------------ Disk usage
1.535 albertel 4017: sub diskusage {
1.533 banghart 4018: my ($udom,$uname,$directoryRoot)=@_;
4019: $directoryRoot =~ s/\/$//;
1.535 albertel 4020: my $listing=&reply('du:'.$directoryRoot,homeserver($uname,$udom));
1.514 albertel 4021: return $listing;
1.512 banghart 4022: }
4023:
1.566 banghart 4024: sub is_locked {
4025: my ($file_name, $domain, $user) = @_;
4026: my @check;
4027: my $is_locked;
4028: push @check, $file_name;
1.613 albertel 4029: my %locked = &get('file_permissions',\@check,
1.620 albertel 4030: $env{'user.domain'},$env{'user.name'});
1.615 albertel 4031: my ($tmp)=keys(%locked);
4032: if ($tmp=~/^error:/) { undef(%locked); }
1.613 albertel 4033:
1.566 banghart 4034: if (ref($locked{$file_name}) eq 'ARRAY') {
4035: $is_locked = 'true';
4036: } else {
4037: $is_locked = 'false';
4038: }
4039: }
4040:
1.559 banghart 4041: # ------------------------------------------------------------- Mark as Read Only
4042:
4043: sub mark_as_readonly {
4044: my ($domain,$user,$files,$what) = @_;
1.613 albertel 4045: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4046: my ($tmp)=keys(%current_permissions);
4047: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 4048: foreach my $file (@{$files}) {
1.561 banghart 4049: push(@{$current_permissions{$file}},$what);
1.559 banghart 4050: }
1.613 albertel 4051: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 4052: return;
4053: }
4054:
1.572 banghart 4055: # ------------------------------------------------------------Save Selected Files
4056:
4057: sub save_selected_files {
4058: my ($user, $path, @files) = @_;
4059: my $filename = $user."savedfiles";
1.573 banghart 4060: my @other_files = &files_not_in_path($user, $path);
1.574 banghart 4061: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 4062: foreach my $file (@files) {
1.620 albertel 4063: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 4064: }
4065: foreach my $file (@other_files) {
1.574 banghart 4066: print (OUT $file."\n");
1.572 banghart 4067: }
1.574 banghart 4068: close (OUT);
1.572 banghart 4069: return 'ok';
4070: }
4071:
1.574 banghart 4072: sub clear_selected_files {
4073: my ($user) = @_;
4074: my $filename = $user."savedfiles";
4075: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
4076: print (OUT undef);
4077: close (OUT);
4078: return ("ok");
4079: }
4080:
1.572 banghart 4081: sub files_in_path {
4082: my ($user, $path) = @_;
4083: my $filename = $user."savedfiles";
4084: my %return_files;
1.574 banghart 4085: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 4086: while (my $line_in = <IN>) {
1.574 banghart 4087: chomp ($line_in);
4088: my @paths_and_file = split (m!/!, $line_in);
4089: my $file_part = pop (@paths_and_file);
4090: my $path_part = join ('/', @paths_and_file);
1.573 banghart 4091: $path_part.='/';
4092: my $path_and_file = $path_part.$file_part;
4093: if ($path_part eq $path) {
4094: $return_files{$file_part}= 'selected';
4095: }
4096: }
1.574 banghart 4097: close (IN);
4098: return (\%return_files);
1.572 banghart 4099: }
4100:
4101: # called in portfolio select mode, to show files selected NOT in current directory
4102: sub files_not_in_path {
4103: my ($user, $path) = @_;
4104: my $filename = $user."savedfiles";
4105: my @return_files;
4106: my $path_part;
1.574 banghart 4107: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.572 banghart 4108: while (<IN>) {
4109: #ok, I know it's clunky, but I want it to work
4110: my @paths_and_file = split m!/!, $_;
1.574 banghart 4111: my $file_part = pop (@paths_and_file);
4112: chomp ($file_part);
4113: my $path_part = join ('/', @paths_and_file);
1.572 banghart 4114: $path_part .= '/';
4115: my $path_and_file = $path_part.$file_part;
4116: if ($path_part ne $path) {
1.574 banghart 4117: push (@return_files, ($path_and_file));
1.572 banghart 4118: }
4119: }
1.574 banghart 4120: close (OUT);
4121: return (@return_files);
1.572 banghart 4122: }
4123:
1.561 banghart 4124: #--------------------------------------------------------------Get Marked as Read Only
4125:
1.629 banghart 4126:
1.561 banghart 4127: sub get_marked_as_readonly {
4128: my ($domain,$user,$what) = @_;
1.613 albertel 4129: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4130: my ($tmp)=keys(%current_permissions);
4131: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.563 banghart 4132: my @readonly_files;
1.629 banghart 4133: my $cmp1=$what;
4134: if (ref($what)) { $cmp1=join('',@{$what}) };
1.563 banghart 4135: while (my ($file_name,$value) = each(%current_permissions)) {
1.561 banghart 4136: if (ref($value) eq "ARRAY"){
4137: foreach my $stored_what (@{$value}) {
1.629 banghart 4138: my $cmp2=$stored_what;
4139: if (ref($stored_what)) { $cmp2=join('',@{$stored_what}) };
4140: if ($cmp1 eq $cmp2) {
1.561 banghart 4141: push(@readonly_files, $file_name);
1.563 banghart 4142: } elsif (!defined($what)) {
4143: push(@readonly_files, $file_name);
1.561 banghart 4144: }
4145: }
4146: }
4147: }
4148: return @readonly_files;
4149: }
1.577 banghart 4150: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 4151:
1.577 banghart 4152: sub get_marked_as_readonly_hash {
4153: my ($domain,$user,$what) = @_;
1.613 albertel 4154: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4155: my ($tmp)=keys(%current_permissions);
4156: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.613 albertel 4157:
1.577 banghart 4158: my %readonly_files;
4159: while (my ($file_name,$value) = each(%current_permissions)) {
4160: if (ref($value) eq "ARRAY"){
4161: foreach my $stored_what (@{$value}) {
4162: if ($stored_what eq $what) {
4163: $readonly_files{$file_name} = 'locked';
4164: } elsif (!defined($what)) {
4165: $readonly_files{$file_name} = 'locked';
4166: }
4167: }
4168: }
4169: }
4170: return %readonly_files;
4171: }
1.559 banghart 4172: # ------------------------------------------------------------ Unmark as Read Only
4173:
4174: sub unmark_as_readonly {
1.629 banghart 4175: # unmarks $file_name (if $file_name is defined), or all files locked by $what
4176: # for portfolio submissions, $what contains [$symb,$crsid]
4177: my ($domain,$user,$what,$file_name) = @_;
1.634 albertel 4178: my $symb_crs = $what;
4179: if (ref($what)) { $symb_crs=join('',@$what); }
1.613 albertel 4180: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4181: my ($tmp)=keys(%current_permissions);
4182: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.613 albertel 4183: my @readonly_files = &get_marked_as_readonly($domain,$user,$what);
1.650 albertel 4184: foreach my $file (@readonly_files) {
4185: if (defined($file_name) && ($file_name ne $file)) { next; }
4186: my $current_locks = $current_permissions{$file};
1.563 banghart 4187: my @new_locks;
4188: my @del_keys;
4189: if (ref($current_locks) eq "ARRAY"){
4190: foreach my $locker (@{$current_locks}) {
1.632 albertel 4191: my $compare=$locker;
4192: if (ref($locker)) { $compare=join('',@{$locker}) };
1.650 albertel 4193: if ($compare ne $symb_crs) {
4194: push(@new_locks, $locker);
1.563 banghart 4195: }
4196: }
1.650 albertel 4197: if (scalar(@new_locks) > 0) {
1.563 banghart 4198: $current_permissions{$file} = \@new_locks;
4199: } else {
4200: push(@del_keys, $file);
1.613 albertel 4201: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 4202: delete($current_permissions{$file});
1.563 banghart 4203: }
4204: }
1.561 banghart 4205: }
1.613 albertel 4206: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 4207: return;
4208: }
1.512 banghart 4209:
1.17 www 4210: # ------------------------------------------------------------ Directory lister
4211:
4212: sub dirlist {
1.253 stredwic 4213: my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_;
4214:
1.18 www 4215: $uri=~s/^\///;
4216: $uri=~s/\/$//;
1.253 stredwic 4217: my ($udom, $uname);
4218: (undef,$udom,$uname)=split(/\//,$uri);
4219: if(defined($userdomain)) {
4220: $udom = $userdomain;
4221: }
4222: if(defined($username)) {
4223: $uname = $username;
4224: }
4225:
4226: my $dirRoot = $perlvar{'lonDocRoot'};
4227: if(defined($alternateDirectoryRoot)) {
4228: $dirRoot = $alternateDirectoryRoot;
4229: $dirRoot =~ s/\/$//;
4230: }
4231:
4232: if($udom) {
4233: if($uname) {
1.605 matthew 4234: my $listing=reply('ls2:'.$dirRoot.'/'.$uri,
1.253 stredwic 4235: homeserver($uname,$udom));
1.605 matthew 4236: my @listing_results;
4237: if ($listing eq 'unknown_cmd') {
4238: $listing=reply('ls:'.$dirRoot.'/'.$uri,
4239: homeserver($uname,$udom));
4240: @listing_results = split(/:/,$listing);
4241: } else {
4242: @listing_results = map { &unescape($_); } split(/:/,$listing);
4243: }
4244: return @listing_results;
1.253 stredwic 4245: } elsif(!defined($alternateDirectoryRoot)) {
4246: my $tryserver;
4247: my %allusers=();
4248: foreach $tryserver (keys %libserv) {
4249: if($hostdom{$tryserver} eq $udom) {
1.605 matthew 4250: my $listing=reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
1.253 stredwic 4251: $udom, $tryserver);
1.605 matthew 4252: my @listing_results;
4253: if ($listing eq 'unknown_cmd') {
4254: $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
4255: $udom, $tryserver);
4256: @listing_results = split(/:/,$listing);
4257: } else {
4258: @listing_results =
4259: map { &unescape($_); } split(/:/,$listing);
4260: }
4261: if ($listing_results[0] ne 'no_such_dir' &&
4262: $listing_results[0] ne 'empty' &&
4263: $listing_results[0] ne 'con_lost') {
4264: foreach (@listing_results) {
1.253 stredwic 4265: my ($entry,@stat)=split(/&/,$_);
4266: $allusers{$entry}=1;
4267: }
4268: }
1.191 harris41 4269: }
1.253 stredwic 4270: }
4271: my $alluserstr='';
4272: foreach (sort keys %allusers) {
4273: $alluserstr.=$_.'&user:';
4274: }
4275: $alluserstr=~s/:$//;
4276: return split(/:/,$alluserstr);
4277: } else {
4278: my @emptyResults = ();
4279: push(@emptyResults, 'missing user name');
4280: return split(':',@emptyResults);
4281: }
4282: } elsif(!defined($alternateDirectoryRoot)) {
4283: my $tryserver;
4284: my %alldom=();
4285: foreach $tryserver (keys %libserv) {
4286: $alldom{$hostdom{$tryserver}}=1;
4287: }
4288: my $alldomstr='';
4289: foreach (sort keys %alldom) {
1.397 albertel 4290: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'/&domain:';
1.253 stredwic 4291: }
4292: $alldomstr=~s/:$//;
4293: return split(/:/,$alldomstr);
4294: } else {
4295: my @emptyResults = ();
4296: push(@emptyResults, 'missing domain');
4297: return split(':',@emptyResults);
1.275 stredwic 4298: }
4299: }
4300:
4301: # --------------------------------------------- GetFileTimestamp
4302: # This function utilizes dirlist and returns the date stamp for
4303: # when it was last modified. It will also return an error of -1
4304: # if an error occurs
4305:
1.410 matthew 4306: ##
4307: ## FIXME: This subroutine assumes its caller knows something about the
4308: ## directory structure of the home server for the student ($root).
4309: ## Not a good assumption to make. Since this is for looking up files
4310: ## in user directories, the full path should be constructed by lond, not
4311: ## whatever machine we request data from.
4312: ##
1.275 stredwic 4313: sub GetFileTimestamp {
4314: my ($studentDomain,$studentName,$filename,$root)=@_;
4315: $studentDomain=~s/\W//g;
4316: $studentName=~s/\W//g;
4317: my $subdir=$studentName.'__';
4318: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
4319: my $proname="$studentDomain/$subdir/$studentName";
4320: $proname .= '/'.$filename;
1.375 matthew 4321: my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain,
4322: $studentName, $root);
1.275 stredwic 4323: my @stats = split('&', $fileStat);
4324: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 4325: # @stats contains first the filename, then the stat output
4326: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 4327: } else {
4328: return -1;
1.253 stredwic 4329: }
1.26 www 4330: }
4331:
4332: # -------------------------------------------------------- Value of a Condition
4333:
1.40 www 4334: sub directcondval {
4335: my $number=shift;
1.620 albertel 4336: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 4337: &Apache::lonuserstate::evalstate();
4338: }
1.620 albertel 4339: if ($env{'user.state.'.$env{'request.course.id'}}) {
4340: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 4341: } else {
4342: return 2;
4343: }
4344: }
4345:
1.26 www 4346: sub condval {
4347: my $condidx=shift;
4348: my $result=0;
1.54 www 4349: my $allpathcond='';
1.191 harris41 4350: foreach (split(/\|/,$condidx)) {
1.620 albertel 4351: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$_})) {
1.54 www 4352: $allpathcond.=
1.620 albertel 4353: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$_}.')|';
1.54 www 4354: }
1.191 harris41 4355: }
1.54 www 4356: $allpathcond=~s/\|$//;
1.620 albertel 4357: if ($env{'request.course.id'}) {
1.54 www 4358: if ($allpathcond) {
1.26 www 4359: my $operand='|';
4360: my @stack;
1.191 harris41 4361: foreach ($allpathcond=~/(\d+|\(|\)|\&|\|)/g) {
1.26 www 4362: if ($_ eq '(') {
4363: push @stack,($operand,$result)
4364: } elsif ($_ eq ')') {
4365: my $before=pop @stack;
4366: if (pop @stack eq '&') {
4367: $result=$result>$before?$before:$result;
4368: } else {
4369: $result=$result>$before?$result:$before;
4370: }
4371: } elsif (($_ eq '&') || ($_ eq '|')) {
4372: $operand=$_;
4373: } else {
1.40 www 4374: my $new=directcondval($_);
1.26 www 4375: if ($operand eq '&') {
4376: $result=$result>$new?$new:$result;
4377: } else {
4378: $result=$result>$new?$result:$new;
1.191 harris41 4379: }
1.26 www 4380: }
1.191 harris41 4381: }
1.26 www 4382: }
4383: }
4384: return $result;
1.421 albertel 4385: }
4386:
4387: # ---------------------------------------------------- Devalidate courseresdata
4388:
4389: sub devalidatecourseresdata {
4390: my ($coursenum,$coursedomain)=@_;
4391: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 4392: &devalidate_cache_new('courseres',$hashid);
1.28 www 4393: }
4394:
1.200 www 4395: # --------------------------------------------------- Course Resourcedata Query
4396:
1.624 albertel 4397: sub get_courseresdata {
4398: my ($coursenum,$coursedomain)=@_;
1.200 www 4399: my $coursehom=&homeserver($coursenum,$coursedomain);
4400: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 4401: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 4402: my %dumpreply;
1.417 albertel 4403: unless (defined($cached)) {
1.624 albertel 4404: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 4405: $result=\%dumpreply;
1.251 albertel 4406: my ($tmp) = keys(%dumpreply);
4407: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 4408: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 4409: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
4410: return $tmp;
1.416 albertel 4411: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 4412: $result=undef;
1.599 albertel 4413: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 4414: }
4415: }
1.624 albertel 4416: return $result;
4417: }
4418:
1.633 albertel 4419: sub devalidateuserresdata {
4420: my ($uname,$udom)=@_;
4421: my $hashid="$udom:$uname";
4422: &devalidate_cache_new('userres',$hashid);
4423: }
4424:
1.624 albertel 4425: sub get_userresdata {
4426: my ($uname,$udom)=@_;
4427: #most student don\'t have any data set, check if there is some data
4428: if (&EXT_cache_status($udom,$uname)) { return undef; }
4429:
4430: my $hashid="$udom:$uname";
4431: my ($result,$cached)=&is_cached_new('userres',$hashid);
4432: if (!defined($cached)) {
4433: my %resourcedata=&dump('resourcedata',$udom,$uname);
4434: $result=\%resourcedata;
4435: &do_cache_new('userres',$hashid,$result,600);
4436: }
4437: my ($tmp)=keys(%$result);
4438: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
4439: return $result;
4440: }
4441: #error 2 occurs when the .db doesn't exist
4442: if ($tmp!~/error: 2 /) {
4443: &logthis("<font color=blue>WARNING:".
4444: " Trying to get resource data for ".
4445: $uname." at ".$udom.": ".
4446: $tmp."</font>");
4447: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 4448: #&EXT_cache_set($udom,$uname);
4449: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 4450: undef($tmp); # not really an error so don't send it back
1.624 albertel 4451: }
4452: return $tmp;
4453: }
4454:
4455: sub resdata {
4456: my ($name,$domain,$type,@which)=@_;
4457: my $result;
4458: if ($type eq 'course') {
4459: $result=&get_courseresdata($name,$domain);
4460: } elsif ($type eq 'user') {
4461: $result=&get_userresdata($name,$domain);
4462: }
4463: if (!ref($result)) { return $result; }
1.251 albertel 4464: foreach my $item (@which) {
1.417 albertel 4465: if (defined($result->{$item})) {
4466: return $result->{$item};
1.251 albertel 4467: }
1.250 albertel 4468: }
1.291 albertel 4469: return undef;
1.200 www 4470: }
4471:
1.379 matthew 4472: #
4473: # EXT resource caching routines
4474: #
4475:
4476: sub clear_EXT_cache_status {
1.383 albertel 4477: &delenv('cache.EXT.');
1.379 matthew 4478: }
4479:
4480: sub EXT_cache_status {
4481: my ($target_domain,$target_user) = @_;
1.383 albertel 4482: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 4483: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 4484: # We know already the user has no data
4485: return 1;
4486: } else {
4487: return 0;
4488: }
4489: }
4490:
4491: sub EXT_cache_set {
4492: my ($target_domain,$target_user) = @_;
1.383 albertel 4493: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.633 albertel 4494: #&appenv($cachename => time);
1.379 matthew 4495: }
4496:
1.28 www 4497: # --------------------------------------------------------- Value of a Variable
1.58 www 4498: sub EXT {
1.395 albertel 4499: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.218 albertel 4500:
1.68 www 4501: unless ($varname) { return ''; }
1.218 albertel 4502: #get real user name/domain, courseid and symb
4503: my $courseid;
1.359 albertel 4504: my $publicuser;
1.427 www 4505: if ($symbparm) {
4506: $symbparm=&get_symb_from_alias($symbparm);
4507: }
1.218 albertel 4508: if (!($uname && $udom)) {
1.360 albertel 4509: (my $cursymb,$courseid,$udom,$uname,$publicuser)=
1.378 matthew 4510: &Apache::lonxml::whichuser($symbparm);
1.218 albertel 4511: if (!$symbparm) { $symbparm=$cursymb; }
4512: } else {
1.620 albertel 4513: $courseid=$env{'request.course.id'};
1.218 albertel 4514: }
1.48 www 4515: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
4516: my $rest;
1.320 albertel 4517: if (defined($therest[0])) {
1.48 www 4518: $rest=join('.',@therest);
4519: } else {
4520: $rest='';
4521: }
1.320 albertel 4522:
1.57 www 4523: my $qualifierrest=$qualifier;
4524: if ($rest) { $qualifierrest.='.'.$rest; }
4525: my $spacequalifierrest=$space;
4526: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 4527: if ($realm eq 'user') {
1.48 www 4528: # --------------------------------------------------------------- user.resource
4529: if ($space eq 'resource') {
1.651 albertel 4530: if ( (defined($Apache::lonhomework::parsing_a_problem)
4531: || defined($Apache::lonhomework::parsing_a_task))
4532: &&
4533: ($symbparm eq &symbread()) ) {
1.335 albertel 4534: return $Apache::lonhomework::history{$qualifierrest};
4535: } else {
1.359 albertel 4536: my %restored;
1.620 albertel 4537: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 4538: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
4539: } else {
4540: %restored=&restore($symbparm,$courseid,$udom,$uname);
4541: }
1.335 albertel 4542: return $restored{$qualifierrest};
4543: }
1.48 www 4544: # ----------------------------------------------------------------- user.access
4545: } elsif ($space eq 'access') {
1.218 albertel 4546: # FIXME - not supporting calls for a specific user
1.48 www 4547: return &allowed($qualifier,$rest);
4548: # ------------------------------------------ user.preferences, user.environment
4549: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 4550: if (($uname eq $env{'user.name'}) &&
4551: ($udom eq $env{'user.domain'})) {
4552: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 4553: } else {
1.359 albertel 4554: my %returnhash;
4555: if (!$publicuser) {
4556: %returnhash=&userenvironment($udom,$uname,
4557: $qualifierrest);
4558: }
1.218 albertel 4559: return $returnhash{$qualifierrest};
4560: }
1.48 www 4561: # ----------------------------------------------------------------- user.course
4562: } elsif ($space eq 'course') {
1.218 albertel 4563: # FIXME - not supporting calls for a specific user
1.620 albertel 4564: return $env{join('.',('request.course',$qualifier))};
1.48 www 4565: # ------------------------------------------------------------------- user.role
4566: } elsif ($space eq 'role') {
1.218 albertel 4567: # FIXME - not supporting calls for a specific user
1.620 albertel 4568: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 4569: if ($qualifier eq 'value') {
4570: return $role;
4571: } elsif ($qualifier eq 'extent') {
4572: return $where;
4573: }
4574: # ----------------------------------------------------------------- user.domain
4575: } elsif ($space eq 'domain') {
1.218 albertel 4576: return $udom;
1.48 www 4577: # ------------------------------------------------------------------- user.name
4578: } elsif ($space eq 'name') {
1.218 albertel 4579: return $uname;
1.48 www 4580: # ---------------------------------------------------- Any other user namespace
1.29 www 4581: } else {
1.359 albertel 4582: my %reply;
4583: if (!$publicuser) {
4584: %reply=&get($space,[$qualifierrest],$udom,$uname);
4585: }
4586: return $reply{$qualifierrest};
1.48 www 4587: }
1.236 www 4588: } elsif ($realm eq 'query') {
4589: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 4590: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4591: [$spacequalifierrest]);
1.620 albertel 4592: return $env{'form.'.$spacequalifierrest};
1.236 www 4593: } elsif ($realm eq 'request') {
1.48 www 4594: # ------------------------------------------------------------- request.browser
4595: if ($space eq 'browser') {
1.430 www 4596: if ($qualifier eq 'textremote') {
4597: if (&mt('textual_remote_display') eq 'on') {
4598: return 1;
4599: } else {
4600: return 0;
4601: }
4602: } else {
1.620 albertel 4603: return $env{'browser.'.$qualifier};
1.430 www 4604: }
1.57 www 4605: # ------------------------------------------------------------ request.filename
4606: } else {
1.620 albertel 4607: return $env{'request.'.$spacequalifierrest};
1.29 www 4608: }
1.28 www 4609: } elsif ($realm eq 'course') {
1.48 www 4610: # ---------------------------------------------------------- course.description
1.620 albertel 4611: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 4612: } elsif ($realm eq 'resource') {
1.165 www 4613:
1.395 albertel 4614: my $section;
1.620 albertel 4615: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 4616: if (!$symbparm) { $symbparm=&symbread(); }
4617: }
1.593 albertel 4618: my ($courselevelm,$courselevel);
1.539 albertel 4619: if ($symbparm && defined($courseid) &&
1.620 albertel 4620: $courseid eq $env{'request.course.id'}) {
1.165 www 4621:
1.218 albertel 4622: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 4623:
1.60 www 4624: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 4625: my $symbp=$symbparm;
1.409 www 4626: my $mapp=(&decode_symb($symbp))[0];
1.218 albertel 4627:
4628: my $symbparm=$symbp.'.'.$spacequalifierrest;
4629: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
4630:
1.620 albertel 4631: if (($env{'user.name'} eq $uname) &&
4632: ($env{'user.domain'} eq $udom)) {
4633: $section=$env{'request.course.sec'};
1.218 albertel 4634: } else {
1.539 albertel 4635: if (! defined($usection)) {
1.551 albertel 4636: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 4637: } else {
4638: $section = $usection;
4639: }
1.218 albertel 4640: }
4641:
4642: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
4643: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
4644: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
4645:
1.593 albertel 4646: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 4647: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 4648: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 4649:
1.60 www 4650: # ----------------------------------------------------------- first, check user
1.624 albertel 4651:
4652: my $userreply=&resdata($uname,$udom,'user',
4653: ($courselevelr,$courselevelm,
4654: $courselevel));
4655:
4656: if (defined($userreply)) { return $userreply; }
1.95 www 4657:
1.594 albertel 4658: # ------------------------------------------------ second, check some of course
1.96 www 4659:
1.624 albertel 4660: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
4661: $env{'course.'.$courseid.'.domain'},
4662: 'course',
4663: ($seclevelr,$seclevelm,$seclevel,
4664: $courselevelr));
1.287 albertel 4665: if (defined($coursereply)) { return $coursereply; }
1.200 www 4666:
1.60 www 4667: # ------------------------------------------------------ third, check map parms
1.218 albertel 4668: my %parmhash=();
4669: my $thisparm='';
4670: if (tie(%parmhash,'GDBM_File',
1.620 albertel 4671: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 4672: &GDBM_READER(),0640)) {
1.218 albertel 4673: $thisparm=$parmhash{$symbparm};
4674: untie(%parmhash);
4675: }
4676: if ($thisparm) { return $thisparm; }
4677: }
1.594 albertel 4678: # ------------------------------------------ fourth, look in resource metadata
1.71 www 4679:
1.218 albertel 4680: $spacequalifierrest=~s/\./\_/;
1.282 albertel 4681: my $filename;
4682: if (!$symbparm) { $symbparm=&symbread(); }
4683: if ($symbparm) {
1.409 www 4684: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 4685: } else {
1.620 albertel 4686: $filename=$env{'request.filename'};
1.282 albertel 4687: }
4688: my $metadata=&metadata($filename,$spacequalifierrest);
1.288 albertel 4689: if (defined($metadata)) { return $metadata; }
1.282 albertel 4690: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.288 albertel 4691: if (defined($metadata)) { return $metadata; }
1.142 www 4692:
1.594 albertel 4693: # ---------------------------------------------- fourth, look in rest pf course
1.593 albertel 4694: if ($symbparm && defined($courseid) &&
1.620 albertel 4695: $courseid eq $env{'request.course.id'}) {
1.624 albertel 4696: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
4697: $env{'course.'.$courseid.'.domain'},
4698: 'course',
4699: ($courselevelm,$courselevel));
1.593 albertel 4700: if (defined($coursereply)) { return $coursereply; }
4701: }
1.145 www 4702: # ------------------------------------------------------------------ Cascade up
1.218 albertel 4703: unless ($space eq '0') {
1.336 albertel 4704: my @parts=split(/_/,$space);
4705: my $id=pop(@parts);
4706: my $part=join('_',@parts);
4707: if ($part eq '') { $part='0'; }
4708: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 4709: $symbparm,$udom,$uname,$section,1);
1.337 albertel 4710: if (defined($partgeneral)) { return $partgeneral; }
1.218 albertel 4711: }
1.395 albertel 4712: if ($recurse) { return undef; }
4713: my $pack_def=&packages_tab_default($filename,$varname);
4714: if (defined($pack_def)) { return $pack_def; }
1.71 www 4715:
1.48 www 4716: # ---------------------------------------------------- Any other user namespace
4717: } elsif ($realm eq 'environment') {
4718: # ----------------------------------------------------------------- environment
1.620 albertel 4719: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
4720: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 4721: } else {
4722: my %returnhash=&userenvironment($udom,$uname,
4723: $spacequalifierrest);
4724: return $returnhash{$spacequalifierrest};
4725: }
1.28 www 4726: } elsif ($realm eq 'system') {
1.48 www 4727: # ----------------------------------------------------------------- system.time
4728: if ($space eq 'time') {
4729: return time;
4730: }
1.28 www 4731: }
1.48 www 4732: return '';
1.61 www 4733: }
4734:
1.395 albertel 4735: sub packages_tab_default {
4736: my ($uri,$varname)=@_;
4737: my (undef,$part,$name)=split(/\./,$varname);
4738: my $packages=&metadata($uri,'packages');
4739: foreach my $package (split(/,/,$packages)) {
4740: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.468 albertel 4741: if (defined($packagetab{"$pack_type&$name&default"})) {
4742: return $packagetab{"$pack_type&$name&default"};
4743: }
1.585 albertel 4744: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 4745: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
4746: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 4747: }
4748: }
4749: return undef;
4750: }
4751:
1.334 albertel 4752: sub add_prefix_and_part {
4753: my ($prefix,$part)=@_;
4754: my $keyroot;
4755: if (defined($prefix) && $prefix !~ /^__/) {
4756: # prefix that has a part already
4757: $keyroot=$prefix;
4758: } elsif (defined($prefix)) {
4759: # prefix that is missing a part
4760: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
4761: } else {
4762: # no prefix at all
4763: if (defined($part)) { $keyroot='_'.$part; }
4764: }
4765: return $keyroot;
4766: }
4767:
1.71 www 4768: # ---------------------------------------------------------------- Get metadata
4769:
1.599 albertel 4770: my %metaentry;
1.71 www 4771: sub metadata {
1.176 www 4772: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 4773: $uri=&declutter($uri);
1.288 albertel 4774: # if it is a non metadata possible uri return quickly
1.529 albertel 4775: if (($uri eq '') ||
4776: (($uri =~ m|^/*adm/|) &&
4777: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.423 albertel 4778: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
1.489 albertel 4779: ($uri =~ m|home/[^/]+/public_html/|)) {
1.468 albertel 4780: return undef;
1.288 albertel 4781: }
1.73 www 4782: my $filename=$uri;
4783: $uri=~s/\.meta$//;
1.172 www 4784: #
4785: # Is the metadata already cached?
1.177 www 4786: # Look at timestamp of caching
1.172 www 4787: # Everything is cached by the main uri, libraries are never directly cached
4788: #
1.428 albertel 4789: if (!defined($liburi)) {
1.599 albertel 4790: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 4791: if (defined($cached)) { return $result->{':'.$what}; }
4792: }
4793: {
1.172 www 4794: #
4795: # Is this a recursive call for a library?
4796: #
1.599 albertel 4797: # if (! exists($metacache{$uri})) {
4798: # $metacache{$uri}={};
4799: # }
1.171 www 4800: if ($liburi) {
4801: $liburi=&declutter($liburi);
4802: $filename=$liburi;
1.401 bowersj2 4803: } else {
1.599 albertel 4804: &devalidate_cache_new('meta',$uri);
4805: undef(%metaentry);
1.401 bowersj2 4806: }
1.140 www 4807: my %metathesekeys=();
1.73 www 4808: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 4809: my $metastring;
1.609 banghart 4810: if ($uri !~ m -^(uploaded|editupload)/-) {
1.543 albertel 4811: my $file=&filelocation('',&clutter($filename));
1.599 albertel 4812: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 4813: $metastring=&getfile($file);
1.489 albertel 4814: }
1.208 albertel 4815: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 4816: my $token;
1.140 www 4817: undef %metathesekeys;
1.71 www 4818: while ($token=$parser->get_token) {
1.339 albertel 4819: if ($token->[0] eq 'S') {
4820: if (defined($token->[2]->{'package'})) {
1.172 www 4821: #
4822: # This is a package - get package info
4823: #
1.339 albertel 4824: my $package=$token->[2]->{'package'};
4825: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
4826: if (defined($token->[2]->{'id'})) {
4827: $keyroot.='_'.$token->[2]->{'id'};
4828: }
1.599 albertel 4829: if ($metaentry{':packages'}) {
4830: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 4831: } else {
1.599 albertel 4832: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 4833: }
1.613 albertel 4834: foreach (sort keys %packagetab) {
1.432 albertel 4835: my $part=$keyroot;
4836: $part=~s/^\_//;
4837: if ($_=~/^\Q$package\E\&/ ||
4838: $_=~/^\Q$package\E_0\&/) {
1.339 albertel 4839: my ($pack,$name,$subp)=split(/\&/,$_);
1.395 albertel 4840: # ignore package.tab specified default values
4841: # here &package_tab_default() will fetch those
4842: if ($subp eq 'default') { next; }
1.339 albertel 4843: my $value=$packagetab{$_};
1.432 albertel 4844: my $unikey;
4845: if ($pack =~ /_0$/) {
4846: $unikey='parameter_0_'.$name;
4847: $part=0;
4848: } else {
4849: $unikey='parameter'.$keyroot.'_'.$name;
4850: }
1.339 albertel 4851: if ($subp eq 'display') {
4852: $value.=' [Part: '.$part.']';
4853: }
1.599 albertel 4854: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 4855: $metathesekeys{$unikey}=1;
1.599 albertel 4856: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
4857: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 4858: }
1.599 albertel 4859: if (defined($metaentry{':'.$unikey.'.default'})) {
4860: $metaentry{':'.$unikey}=
4861: $metaentry{':'.$unikey.'.default'};
1.356 albertel 4862: }
1.339 albertel 4863: }
4864: }
4865: } else {
1.172 www 4866: #
4867: # This is not a package - some other kind of start tag
1.339 albertel 4868: #
4869: my $entry=$token->[1];
4870: my $unikey;
4871: if ($entry eq 'import') {
4872: $unikey='';
4873: } else {
4874: $unikey=$entry;
4875: }
4876: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
4877:
4878: if (defined($token->[2]->{'id'})) {
4879: $unikey.='_'.$token->[2]->{'id'};
4880: }
1.175 www 4881:
1.339 albertel 4882: if ($entry eq 'import') {
1.175 www 4883: #
4884: # Importing a library here
1.339 albertel 4885: #
4886: if ($depthcount<20) {
4887: my $location=$parser->get_text('/import');
4888: my $dir=$filename;
4889: $dir=~s|[^/]*$||;
4890: $location=&filelocation($dir,$location);
4891: foreach (sort(split(/\,/,&metadata($uri,'keys',
4892: $location,$unikey,
4893: $depthcount+1)))) {
1.599 albertel 4894: $metaentry{':'.$_}=$metaentry{':'.$_};
1.339 albertel 4895: $metathesekeys{$_}=1;
4896: }
4897: }
4898: } else {
4899:
4900: if (defined($token->[2]->{'name'})) {
4901: $unikey.='_'.$token->[2]->{'name'};
4902: }
4903: $metathesekeys{$unikey}=1;
4904: foreach (@{$token->[3]}) {
1.599 albertel 4905: $metaentry{':'.$unikey.'.'.$_}=$token->[2]->{$_};
1.339 albertel 4906: }
4907: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 4908: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 4909: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
4910: # only ws inside the tag, and not in default, so use default
4911: # as value
1.599 albertel 4912: $metaentry{':'.$unikey}=$default;
1.339 albertel 4913: } else {
1.321 albertel 4914: # either something interesting inside the tag or default
4915: # uninteresting
1.599 albertel 4916: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 4917: }
1.172 www 4918: # end of not-a-package not-a-library import
1.339 albertel 4919: }
1.172 www 4920: # end of not-a-package start tag
1.339 albertel 4921: }
1.172 www 4922: # the next is the end of "start tag"
1.339 albertel 4923: }
4924: }
1.483 albertel 4925: my ($extension) = ($uri =~ /\.(\w+)$/);
4926: foreach my $key (sort(keys(%packagetab))) {
4927: #no specific packages #how's our extension
4928: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 4929: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 4930: \%metathesekeys);
4931: }
1.599 albertel 4932: if (!exists($metaentry{':packages'})) {
1.483 albertel 4933: foreach my $key (sort(keys(%packagetab))) {
4934: #no specific packages well let's get default then
4935: if ($key!~/^default&/) { next; }
1.488 albertel 4936: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 4937: \%metathesekeys);
4938: }
4939: }
1.338 www 4940: # are there custom rights to evaluate
1.599 albertel 4941: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 4942:
1.338 www 4943: #
4944: # Importing a rights file here
1.339 albertel 4945: #
4946: unless ($depthcount) {
1.599 albertel 4947: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 4948: my $dir=$filename;
4949: $dir=~s|[^/]*$||;
4950: $location=&filelocation($dir,$location);
4951: foreach (sort(split(/\,/,&metadata($uri,'keys',
4952: $location,'_rights',
4953: $depthcount+1)))) {
1.599 albertel 4954: #$metaentry{':'.$_}=$metacache{$uri}->{':'.$_};
1.339 albertel 4955: $metathesekeys{$_}=1;
4956: }
4957: }
4958: }
1.599 albertel 4959: $metaentry{':keys'}=join(',',keys %metathesekeys);
4960: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
4961: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.623 albertel 4962: &do_cache_new('meta',$uri,\%metaentry,60*60*24);
1.177 www 4963: # this is the end of "was not already recently cached
1.71 www 4964: }
1.599 albertel 4965: return $metaentry{':'.$what};
1.261 albertel 4966: }
4967:
1.488 albertel 4968: sub metadata_create_package_def {
1.483 albertel 4969: my ($uri,$key,$package,$metathesekeys)=@_;
4970: my ($pack,$name,$subp)=split(/\&/,$key);
4971: if ($subp eq 'default') { next; }
4972:
1.599 albertel 4973: if (defined($metaentry{':packages'})) {
4974: $metaentry{':packages'}.=','.$package;
1.483 albertel 4975: } else {
1.599 albertel 4976: $metaentry{':packages'}=$package;
1.483 albertel 4977: }
4978: my $value=$packagetab{$key};
4979: my $unikey;
4980: $unikey='parameter_0_'.$name;
1.599 albertel 4981: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 4982: $$metathesekeys{$unikey}=1;
1.599 albertel 4983: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
4984: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 4985: }
1.599 albertel 4986: if (defined($metaentry{':'.$unikey.'.default'})) {
4987: $metaentry{':'.$unikey}=
4988: $metaentry{':'.$unikey.'.default'};
1.483 albertel 4989: }
4990: }
4991:
1.261 albertel 4992: sub metadata_generate_part0 {
4993: my ($metadata,$metacache,$uri) = @_;
4994: my %allnames;
4995: foreach my $metakey (sort keys %$metadata) {
4996: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 4997: my $part=$$metacache{':'.$metakey.'.part'};
4998: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 4999: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 5000: $allnames{$name}=$part;
5001: }
5002: }
5003: }
5004: foreach my $name (keys(%allnames)) {
5005: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 5006: my $key=":parameter_0_$name";
1.261 albertel 5007: $$metacache{"$key.part"}='0';
5008: $$metacache{"$key.name"}=$name;
1.428 albertel 5009: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 5010: $allnames{$name}.'_'.$name.
5011: '.type'};
1.428 albertel 5012: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 5013: '.display'};
1.644 www 5014: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 5015: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 5016: $$metacache{"$key.display"}=$olddis;
5017: }
1.71 www 5018: }
5019:
1.301 www 5020: # ------------------------------------------------- Get the title of a resource
5021:
5022: sub gettitle {
5023: my $urlsymb=shift;
5024: my $symb=&symbread($urlsymb);
1.534 albertel 5025: if ($symb) {
1.620 albertel 5026: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 5027: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 5028: if (defined($cached)) {
5029: return $result;
5030: }
1.534 albertel 5031: my ($map,$resid,$url)=&decode_symb($symb);
5032: my $title='';
5033: my %bighash;
1.620 albertel 5034: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.534 albertel 5035: &GDBM_READER(),0640)) {
5036: my $mapid=$bighash{'map_pc_'.&clutter($map)};
5037: $title=$bighash{'title_'.$mapid.'.'.$resid};
5038: untie %bighash;
5039: }
5040: $title=~s/\&colon\;/\:/gs;
5041: if ($title) {
1.599 albertel 5042: return &do_cache_new('title',$key,$title,600);
1.534 albertel 5043: }
5044: $urlsymb=$url;
5045: }
5046: my $title=&metadata($urlsymb,'title');
5047: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
5048: return $title;
1.301 www 5049: }
1.613 albertel 5050:
1.614 albertel 5051: sub get_slot {
5052: my ($which,$cnum,$cdom)=@_;
5053: if (!$cnum || !$cdom) {
5054: (undef,my $courseid)=&Apache::lonxml::whichuser();
1.620 albertel 5055: $cdom=$env{'course.'.$courseid.'.domain'};
5056: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 5057: }
5058: my %slotinfo=&get('slots',[$which],$cdom,$cnum);
5059: &Apache::lonhomework::showhash(%slotinfo);
5060: my ($tmp)=keys(%slotinfo);
5061: if ($tmp=~/^error:/) { return (); }
1.616 albertel 5062: if (ref($slotinfo{$which}) eq 'HASH') {
5063: return %{$slotinfo{$which}};
5064: }
5065: return $slotinfo{$which};
1.614 albertel 5066: }
1.31 www 5067: # ------------------------------------------------- Update symbolic store links
5068:
5069: sub symblist {
5070: my ($mapname,%newhash)=@_;
1.438 www 5071: $mapname=&deversion(&declutter($mapname));
1.31 www 5072: my %hash;
1.620 albertel 5073: if (($env{'request.course.fn'}) && (%newhash)) {
5074: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 5075: &GDBM_WRCREAT(),0640)) {
1.191 harris41 5076: foreach (keys %newhash) {
1.601 albertel 5077: $hash{declutter($_)}=&encode_symb($mapname,$newhash{$_}->[1],
5078: $newhash{$_}->[0]);
1.191 harris41 5079: }
1.31 www 5080: if (untie(%hash)) {
5081: return 'ok';
5082: }
5083: }
5084: }
5085: return 'error';
1.212 www 5086: }
5087:
5088: # --------------------------------------------------------------- Verify a symb
5089:
5090: sub symbverify {
1.510 www 5091: my ($symb,$thisurl)=@_;
5092: my $thisfn=$thisurl;
5093: # wrapper not part of symbs
5094: $thisfn=~s/^\/adm\/wrapper//;
1.439 www 5095: $thisfn=&declutter($thisfn);
1.215 www 5096: # direct jump to resource in page or to a sequence - will construct own symbs
5097: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
5098: # check URL part
1.409 www 5099: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 5100:
1.431 www 5101: unless ($url eq $thisfn) { return 0; }
1.213 www 5102:
1.216 www 5103: $symb=&symbclean($symb);
1.510 www 5104: $thisurl=&deversion($thisurl);
1.439 www 5105: $thisfn=&deversion($thisfn);
1.213 www 5106:
5107: my %bighash;
5108: my $okay=0;
1.431 www 5109:
1.620 albertel 5110: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 5111: &GDBM_READER(),0640)) {
1.510 www 5112: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 5113: unless ($ids) {
1.510 www 5114: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 5115: }
5116: if ($ids) {
5117: # ------------------------------------------------------------------- Has ID(s)
5118: foreach (split(/\,/,$ids)) {
1.644 www 5119: my ($mapid,$resid)=split(/\./,$_);
1.216 www 5120: if (
5121: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
5122: eq $symb) {
1.620 albertel 5123: if (($env{'request.role.adv'}) ||
5124: $bighash{'encrypted_'.$_} eq $env{'request.enc'}) {
1.582 albertel 5125: $okay=1;
5126: }
5127: }
1.216 www 5128: }
5129: }
1.213 www 5130: untie(%bighash);
5131: }
5132: return $okay;
1.31 www 5133: }
5134:
1.210 www 5135: # --------------------------------------------------------------- Clean-up symb
5136:
5137: sub symbclean {
5138: my $symb=shift;
1.568 albertel 5139: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 5140: # remove version from map
5141: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 5142:
1.210 www 5143: # remove version from URL
5144: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 5145:
1.507 www 5146: # remove wrapper
5147:
1.510 www 5148: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.210 www 5149: return $symb;
1.409 www 5150: }
5151:
5152: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 5153:
5154: sub encode_symb {
5155: my ($map,$resid,$url)=@_;
5156: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
5157: }
1.409 www 5158:
5159: sub decode_symb {
1.568 albertel 5160: my $symb=shift;
5161: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
5162: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 5163: return (&fixversion($map),$resid,&fixversion($url));
5164: }
5165:
5166: sub fixversion {
5167: my $fn=shift;
1.609 banghart 5168: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 5169: my %bighash;
5170: my $uri=&clutter($fn);
1.620 albertel 5171: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 5172: # is this cached?
1.599 albertel 5173: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 5174: if (defined($cached)) { return $result; }
5175: # unfortunately not cached, or expired
1.620 albertel 5176: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 5177: &GDBM_READER(),0640)) {
5178: if ($bighash{'version_'.$uri}) {
5179: my $version=$bighash{'version_'.$uri};
1.444 www 5180: unless (($version eq 'mostrecent') ||
5181: ($version==&getversion($uri))) {
1.440 www 5182: $uri=~s/\.(\w+)$/\.$version\.$1/;
5183: }
5184: }
5185: untie %bighash;
1.413 www 5186: }
1.599 albertel 5187: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 5188: }
5189:
5190: sub deversion {
5191: my $url=shift;
5192: $url=~s/\.\d+\.(\w+)$/\.$1/;
5193: return $url;
1.210 www 5194: }
5195:
1.31 www 5196: # ------------------------------------------------------ Return symb list entry
5197:
5198: sub symbread {
1.249 www 5199: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 5200: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 5201: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 5202: # no filename provided? try from environment
1.44 www 5203: unless ($thisfn) {
1.620 albertel 5204: if ($env{'request.symb'}) {
5205: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 5206: }
1.620 albertel 5207: $thisfn=$env{'request.filename'};
1.44 www 5208: }
1.569 albertel 5209: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 5210: # is that filename actually a symb? Verify, clean, and return
5211: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 5212: if (&symbverify($thisfn,$1)) {
1.620 albertel 5213: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 5214: }
1.242 www 5215: }
1.44 www 5216: $thisfn=declutter($thisfn);
1.31 www 5217: my %hash;
1.37 www 5218: my %bighash;
5219: my $syval='';
1.620 albertel 5220: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 5221: my $targetfn = $thisfn;
1.609 banghart 5222: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 5223: $targetfn = 'adm/wrapper/'.$thisfn;
5224: }
1.620 albertel 5225: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 5226: &GDBM_READER(),0640)) {
1.481 raeburn 5227: $syval=$hash{$targetfn};
1.37 www 5228: untie(%hash);
5229: }
5230: # ---------------------------------------------------------- There was an entry
5231: if ($syval) {
1.601 albertel 5232: #unless ($syval=~/\_\d+$/) {
1.620 albertel 5233: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.601 albertel 5234: #&appenv('request.ambiguous' => $thisfn);
1.620 albertel 5235: #return $env{$cache_str}='';
1.601 albertel 5236: #}
5237: #$syval.=$1;
5238: #}
1.37 www 5239: } else {
5240: # ------------------------------------------------------- Was not in symb table
1.620 albertel 5241: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 5242: &GDBM_READER(),0640)) {
1.37 www 5243: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 5244: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 5245: unless ($ids) {
5246: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 5247: }
5248: unless ($ids) {
5249: # alias?
5250: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 5251: }
1.37 www 5252: if ($ids) {
5253: # ------------------------------------------------------------------- Has ID(s)
5254: my @possibilities=split(/\,/,$ids);
1.39 www 5255: if ($#possibilities==0) {
5256: # ----------------------------------------------- There is only one possibility
1.37 www 5257: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 5258: $syval=&encode_symb($bighash{'map_id_'.$mapid},
5259: $resid,$thisfn);
1.249 www 5260: } elsif (!$donotrecurse) {
1.39 www 5261: # ------------------------------------------ There is more than one possibility
5262: my $realpossible=0;
1.191 harris41 5263: foreach (@possibilities) {
1.39 www 5264: my $file=$bighash{'src_'.$_};
5265: if (&allowed('bre',$file)) {
5266: my ($mapid,$resid)=split(/\./,$_);
5267: if ($bighash{'map_type_'.$mapid} ne 'page') {
5268: $realpossible++;
1.626 albertel 5269: $syval=&encode_symb($bighash{'map_id_'.$mapid},
5270: $resid,$thisfn);
1.39 www 5271: }
5272: }
1.191 harris41 5273: }
1.39 www 5274: if ($realpossible!=1) { $syval=''; }
1.249 www 5275: } else {
5276: $syval='';
1.37 www 5277: }
5278: }
5279: untie(%bighash)
1.481 raeburn 5280: }
1.31 www 5281: }
1.62 www 5282: if ($syval) {
1.620 albertel 5283: return $env{$cache_str}=$syval;
1.62 www 5284: }
1.31 www 5285: }
1.44 www 5286: &appenv('request.ambiguous' => $thisfn);
1.620 albertel 5287: return $env{$cache_str}='';
1.31 www 5288: }
5289:
5290: # ---------------------------------------------------------- Return random seed
5291:
1.32 www 5292: sub numval {
5293: my $txt=shift;
5294: $txt=~tr/A-J/0-9/;
5295: $txt=~tr/a-j/0-9/;
5296: $txt=~tr/K-T/0-9/;
5297: $txt=~tr/k-t/0-9/;
5298: $txt=~tr/U-Z/0-5/;
5299: $txt=~tr/u-z/0-5/;
5300: $txt=~s/\D//g;
1.564 albertel 5301: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 5302: return int($txt);
1.368 albertel 5303: }
5304:
1.484 albertel 5305: sub numval2 {
5306: my $txt=shift;
5307: $txt=~tr/A-J/0-9/;
5308: $txt=~tr/a-j/0-9/;
5309: $txt=~tr/K-T/0-9/;
5310: $txt=~tr/k-t/0-9/;
5311: $txt=~tr/U-Z/0-5/;
5312: $txt=~tr/u-z/0-5/;
5313: $txt=~s/\D//g;
5314: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
5315: my $total;
5316: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 5317: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 5318: return int($total);
5319: }
5320:
1.575 albertel 5321: sub numval3 {
5322: use integer;
5323: my $txt=shift;
5324: $txt=~tr/A-J/0-9/;
5325: $txt=~tr/a-j/0-9/;
5326: $txt=~tr/K-T/0-9/;
5327: $txt=~tr/k-t/0-9/;
5328: $txt=~tr/U-Z/0-5/;
5329: $txt=~tr/u-z/0-5/;
5330: $txt=~s/\D//g;
5331: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
5332: my $total;
5333: foreach my $val (@txts) { $total+=$val; }
5334: if ($_64bit) { $total=(($total<<32)>>32); }
5335: return $total;
5336: }
5337:
1.368 albertel 5338: sub latest_rnd_algorithm_id {
1.575 albertel 5339: return '64bit4';
1.366 albertel 5340: }
1.32 www 5341:
1.503 albertel 5342: sub get_rand_alg {
5343: my ($courseid)=@_;
5344: if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }
5345: if ($courseid) {
1.620 albertel 5346: return $env{"course.$courseid.rndseed"};
1.503 albertel 5347: }
5348: return &latest_rnd_algorithm_id();
5349: }
5350:
1.562 albertel 5351: sub validCODE {
5352: my ($CODE)=@_;
5353: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
5354: return 0;
5355: }
5356:
1.491 albertel 5357: sub getCODE {
1.620 albertel 5358: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 5359: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
5360: defined($Apache::lonhomework::parsing_a_task) ) &&
5361: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 5362: return $Apache::lonhomework::history{'resource.CODE'};
5363: }
5364: return undef;
5365: }
5366:
1.31 www 5367: sub rndseed {
1.155 albertel 5368: my ($symb,$courseid,$domain,$username)=@_;
1.366 albertel 5369:
5370: my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser();
1.155 albertel 5371: if (!$symb) {
1.366 albertel 5372: unless ($symb=$wsymb) { return time; }
5373: }
5374: if (!$courseid) { $courseid=$wcourseid; }
5375: if (!$domain) { $domain=$wdomain; }
5376: if (!$username) { $username=$wusername }
1.503 albertel 5377: my $which=&get_rand_alg();
1.491 albertel 5378: if (defined(&getCODE())) {
1.575 albertel 5379: if ($which eq '64bit4') {
5380: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
5381: } else {
5382: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
5383: }
5384: } elsif ($which eq '64bit4') {
5385: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 5386: } elsif ($which eq '64bit3') {
5387: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 5388: } elsif ($which eq '64bit2') {
5389: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 5390: } elsif ($which eq '64bit') {
5391: return &rndseed_64bit($symb,$courseid,$domain,$username);
5392: }
5393: return &rndseed_32bit($symb,$courseid,$domain,$username);
5394: }
5395:
5396: sub rndseed_32bit {
5397: my ($symb,$courseid,$domain,$username)=@_;
5398: {
5399: use integer;
5400: my $symbchck=unpack("%32C*",$symb) << 27;
5401: my $symbseed=numval($symb) << 22;
5402: my $namechck=unpack("%32C*",$username) << 17;
5403: my $nameseed=numval($username) << 12;
5404: my $domainseed=unpack("%32C*",$domain) << 7;
5405: my $courseseed=unpack("%32C*",$courseid);
5406: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
5407: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5408: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.564 albertel 5409: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 5410: return $num;
5411: }
5412: }
5413:
5414: sub rndseed_64bit {
5415: my ($symb,$courseid,$domain,$username)=@_;
5416: {
5417: use integer;
5418: my $symbchck=unpack("%32S*",$symb) << 21;
5419: my $symbseed=numval($symb) << 10;
5420: my $namechck=unpack("%32S*",$username);
5421:
5422: my $nameseed=numval($username) << 21;
5423: my $domainseed=unpack("%32S*",$domain) << 10;
5424: my $courseseed=unpack("%32S*",$courseid);
5425:
5426: my $num1=$symbchck+$symbseed+$namechck;
5427: my $num2=$nameseed+$domainseed+$courseseed;
5428: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5429: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.564 albertel 5430: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5431: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 5432: return "$num1,$num2";
1.155 albertel 5433: }
1.366 albertel 5434: }
5435:
1.443 albertel 5436: sub rndseed_64bit2 {
5437: my ($symb,$courseid,$domain,$username)=@_;
5438: {
5439: use integer;
5440: # strings need to be an even # of cahracters long, it it is odd the
5441: # last characters gets thrown away
5442: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5443: my $symbseed=numval($symb) << 10;
5444: my $namechck=unpack("%32S*",$username.' ');
5445:
5446: my $nameseed=numval($username) << 21;
1.501 albertel 5447: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5448: my $courseseed=unpack("%32S*",$courseid.' ');
5449:
5450: my $num1=$symbchck+$symbseed+$namechck;
5451: my $num2=$nameseed+$domainseed+$courseseed;
5452: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5453: #&Apache::lonxml::debug("rndseed :$num:$symb");
5454: return "$num1,$num2";
5455: }
5456: }
5457:
5458: sub rndseed_64bit3 {
5459: my ($symb,$courseid,$domain,$username)=@_;
5460: {
5461: use integer;
5462: # strings need to be an even # of cahracters long, it it is odd the
5463: # last characters gets thrown away
5464: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5465: my $symbseed=numval2($symb) << 10;
5466: my $namechck=unpack("%32S*",$username.' ');
5467:
5468: my $nameseed=numval2($username) << 21;
1.443 albertel 5469: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5470: my $courseseed=unpack("%32S*",$courseid.' ');
5471:
5472: my $num1=$symbchck+$symbseed+$namechck;
5473: my $num2=$nameseed+$domainseed+$courseseed;
5474: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
1.564 albertel 5475: #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
5476: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5477:
1.503 albertel 5478: return "$num1:$num2";
1.443 albertel 5479: }
5480: }
5481:
1.575 albertel 5482: sub rndseed_64bit4 {
5483: my ($symb,$courseid,$domain,$username)=@_;
5484: {
5485: use integer;
5486: # strings need to be an even # of cahracters long, it it is odd the
5487: # last characters gets thrown away
5488: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5489: my $symbseed=numval3($symb) << 10;
5490: my $namechck=unpack("%32S*",$username.' ');
5491:
5492: my $nameseed=numval3($username) << 21;
5493: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5494: my $courseseed=unpack("%32S*",$courseid.' ');
5495:
5496: my $num1=$symbchck+$symbseed+$namechck;
5497: my $num2=$nameseed+$domainseed+$courseseed;
5498: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5499: #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
5500: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5501:
5502: return "$num1:$num2";
5503: }
5504: }
5505:
1.366 albertel 5506: sub rndseed_CODE_64bit {
5507: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 5508: {
1.366 albertel 5509: use integer;
1.443 albertel 5510: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 5511: my $symbseed=numval2($symb);
1.491 albertel 5512: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
5513: my $CODEseed=numval(&getCODE());
1.443 albertel 5514: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 5515: my $num1=$symbseed+$CODEchck;
5516: my $num2=$CODEseed+$courseseed+$symbchck;
5517: #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
1.366 albertel 5518: #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
1.564 albertel 5519: if ($_64bit) { $num1=(($num1<<32)>>32); }
5520: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 5521: return "$num1:$num2";
1.366 albertel 5522: }
5523: }
5524:
1.575 albertel 5525: sub rndseed_CODE_64bit4 {
5526: my ($symb,$courseid,$domain,$username)=@_;
5527: {
5528: use integer;
5529: my $symbchck=unpack("%32S*",$symb.' ') << 16;
5530: my $symbseed=numval3($symb);
5531: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
5532: my $CODEseed=numval3(&getCODE());
5533: my $courseseed=unpack("%32S*",$courseid.' ');
5534: my $num1=$symbseed+$CODEchck;
5535: my $num2=$CODEseed+$courseseed+$symbchck;
5536: #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
5537: #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
5538: if ($_64bit) { $num1=(($num1<<32)>>32); }
5539: if ($_64bit) { $num2=(($num2<<32)>>32); }
5540: return "$num1:$num2";
5541: }
5542: }
5543:
1.366 albertel 5544: sub setup_random_from_rndseed {
5545: my ($rndseed)=@_;
1.503 albertel 5546: if ($rndseed =~/([,:])/) {
5547: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 5548: &Math::Random::random_set_seed(abs($num1),abs($num2));
5549: } else {
5550: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 5551: }
1.36 albertel 5552: }
5553:
1.474 albertel 5554: sub latest_receipt_algorithm_id {
5555: return 'receipt2';
5556: }
5557:
1.480 www 5558: sub recunique {
5559: my $fucourseid=shift;
5560: my $unique;
1.620 albertel 5561: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
5562: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 5563: } else {
5564: $unique=$perlvar{'lonReceipt'};
5565: }
5566: return unpack("%32C*",$unique);
5567: }
5568:
5569: sub recprefix {
5570: my $fucourseid=shift;
5571: my $prefix;
1.620 albertel 5572: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
5573: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 5574: } else {
5575: $prefix=$perlvar{'lonHostID'};
5576: }
5577: return unpack("%32C*",$prefix);
5578: }
5579:
1.76 www 5580: sub ireceipt {
1.474 albertel 5581: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.76 www 5582: my $cuname=unpack("%32C*",$funame);
5583: my $cudom=unpack("%32C*",$fudom);
5584: my $cucourseid=unpack("%32C*",$fucourseid);
5585: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 5586: my $cunique=&recunique($fucourseid);
1.474 albertel 5587: my $cpart=unpack("%32S*",$part);
1.480 www 5588: my $return =&recprefix($fucourseid).'-';
1.620 albertel 5589: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
5590: $env{'request.state'} eq 'construct') {
1.474 albertel 5591: &Apache::lonxml::debug("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname).
5592: " and ".($cpart%$cudom));
5593:
5594: $return.= ($cunique%$cuname+
5595: $cunique%$cudom+
5596: $cusymb%$cuname+
5597: $cusymb%$cudom+
5598: $cucourseid%$cuname+
5599: $cucourseid%$cudom+
5600: $cpart%$cuname+
5601: $cpart%$cudom);
5602: } else {
5603: $return.= ($cunique%$cuname+
5604: $cunique%$cudom+
5605: $cusymb%$cuname+
5606: $cusymb%$cudom+
5607: $cucourseid%$cuname+
5608: $cucourseid%$cudom);
5609: }
5610: return $return;
1.76 www 5611: }
5612:
5613: sub receipt {
1.474 albertel 5614: my ($part)=@_;
5615: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
5616: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 5617: }
1.260 ng 5618:
1.36 albertel 5619: # ------------------------------------------------------------ Serves up a file
1.472 albertel 5620: # returns either the contents of the file or
5621: # -1 if the file doesn't exist
1.481 raeburn 5622: #
5623: # if the target is a file that was uploaded via DOCS,
5624: # a check will be made to see if a current copy exists on the local server,
5625: # if it does this will be served, otherwise a copy will be retrieved from
5626: # the home server for the course and stored in /home/httpd/html/userfiles on
5627: # the local server.
1.472 albertel 5628:
1.36 albertel 5629: sub getfile {
1.538 albertel 5630: my ($file) = @_;
1.609 banghart 5631: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 5632: &repcopy($file);
5633: return &readfile($file);
5634: }
5635:
5636: sub repcopy_userfile {
5637: my ($file)=@_;
1.609 banghart 5638: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 5639: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 5640: my ($cdom,$cnum,$filename) =
5641: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+([^/]+)/+([^/]+)/+(.*)|);
5642: my ($info,$rtncode);
5643: my $uri="/uploaded/$cdom/$cnum/$filename";
5644: if (-e "$file") {
5645: my @fileinfo = stat($file);
5646: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5647: if ($lwpresp ne 'ok') {
5648: if ($rtncode eq '404') {
1.538 albertel 5649: unlink($file);
1.482 albertel 5650: }
1.517 albertel 5651: #my $ua=new LWP::UserAgent;
1.538 albertel 5652: #my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 5653: #my $response=$ua->request($request);
5654: #if ($response->is_success()) {
5655: # return $response->content;
5656: # } else {
5657: # return -1;
5658: # }
1.482 albertel 5659: return -1;
5660: }
5661: if ($info < $fileinfo[9]) {
1.607 raeburn 5662: return 'ok';
1.482 albertel 5663: }
5664: $info = '';
1.538 albertel 5665: $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5666: if ($lwpresp ne 'ok') {
5667: return -1;
5668: }
5669: } else {
1.538 albertel 5670: my $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5671: if ($lwpresp ne 'ok') {
1.517 albertel 5672: my $ua=new LWP::UserAgent;
1.538 albertel 5673: my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 5674: my $response=$ua->request($request);
5675: if ($response->is_success()) {
1.538 albertel 5676: $info=$response->content;
1.517 albertel 5677: } else {
5678: return -1;
5679: }
1.482 albertel 5680: }
5681: my @parts = ($cdom,$cnum);
5682: if ($filename =~ m|^(.+)/[^/]+$|) {
5683: push @parts, split(/\//,$1);
1.518 albertel 5684: }
1.538 albertel 5685: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
1.482 albertel 5686: foreach my $part (@parts) {
5687: $path .= '/'.$part;
5688: if (!-e $path) {
5689: mkdir($path,0770);
5690: }
5691: }
5692: }
1.538 albertel 5693: open(FILE,">$file");
1.482 albertel 5694: print FILE $info;
5695: close(FILE);
1.607 raeburn 5696: return 'ok';
1.481 raeburn 5697: }
5698:
1.517 albertel 5699: sub tokenwrapper {
5700: my $uri=shift;
1.552 albertel 5701: $uri=~s|^http\://([^/]+)||;
5702: $uri=~s|^/||;
1.620 albertel 5703: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 5704: my $token=$1;
1.552 albertel 5705: my (undef,$udom,$uname,$file)=split('/',$uri,4);
5706: if ($udom && $uname && $file) {
5707: $file=~s|(\?\.*)*$||;
1.620 albertel 5708: &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
1.552 albertel 5709: return 'http://'.$hostname{ &homeserver($uname,$udom)}.'/'.$uri.
1.517 albertel 5710: (($uri=~/\?/)?'&':'?').'token='.$token.
5711: '&tokenissued='.$perlvar{'lonHostID'};
5712: } else {
5713: return '/adm/notfound.html';
5714: }
5715: }
5716:
1.481 raeburn 5717: sub getuploaded {
5718: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
5719: $uri=~s/^\///;
5720: $uri = 'http://'.$hostname{ &homeserver($cnum,$cdom)}.'/raw/'.$uri;
5721: my $ua=new LWP::UserAgent;
5722: my $request=new HTTP::Request($reqtype,$uri);
5723: my $response=$ua->request($request);
5724: $$rtncode = $response->code;
1.482 albertel 5725: if (! $response->is_success()) {
5726: return 'failed';
5727: }
5728: if ($reqtype eq 'HEAD') {
1.486 www 5729: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 5730: } elsif ($reqtype eq 'GET') {
5731: $$info = $response->content;
1.472 albertel 5732: }
1.482 albertel 5733: return 'ok';
1.36 albertel 5734: }
5735:
1.481 raeburn 5736: sub readfile {
5737: my $file = shift;
5738: if ( (! -e $file ) || ($file eq '') ) { return -1; };
5739: my $fh;
5740: open($fh,"<$file");
5741: my $a='';
5742: while (<$fh>) { $a .=$_; }
5743: return $a;
5744: }
5745:
1.36 albertel 5746: sub filelocation {
1.590 banghart 5747: my ($dir,$file) = @_;
5748: my $location;
5749: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
5750: if ($file=~m:^/~:) { # is a contruction space reference
5751: $location = $file;
5752: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.649 albertel 5753: } elsif ($file=~m:^/home/[^/]*/public_html/:) {
5754: # is a correct contruction space reference
5755: $location = $file;
1.609 banghart 5756: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 5757: my ($udom,$uname,$filename)=
1.609 banghart 5758: ($file=~m -^/+(?:uploaded|editupload)/+([^/]+)/+([^/]+)/+(.*)$-);
1.590 banghart 5759: my $home=&homeserver($uname,$udom);
5760: my $is_me=0;
5761: my @ids=¤t_machine_ids();
5762: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
5763: if ($is_me) {
5764: $location=&Apache::loncommon::propath($udom,$uname).
5765: '/userfiles/'.$filename;
5766: } else {
5767: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
5768: $udom.'/'.$uname.'/'.$filename;
5769: }
5770: } else {
5771: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
5772: $file=~s:^/res/:/:;
5773: if ( !( $file =~ m:^/:) ) {
5774: $location = $dir. '/'.$file;
5775: } else {
5776: $location = '/home/httpd/html/res'.$file;
5777: }
1.59 albertel 5778: }
1.590 banghart 5779: $location=~s://+:/:g; # remove duplicate /
5780: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
5781: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
5782: return $location;
1.46 www 5783: }
1.36 albertel 5784:
1.46 www 5785: sub hreflocation {
5786: my ($dir,$file)=@_;
1.460 albertel 5787: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
5788: my $finalpath=filelocation($dir,$file);
5789: $finalpath=~s-^/home/httpd/html--;
1.462 albertel 5790: $finalpath=~s-^/home/(\w+)/public_html/-/~$1/-;
1.460 albertel 5791: return $finalpath;
5792: } elsif ($file=~m-^/home-) {
5793: $file=~s-^/home/httpd/html--;
1.462 albertel 5794: $file=~s-^/home/(\w+)/public_html/-/~$1/-;
1.460 albertel 5795: return $file;
1.46 www 5796: }
1.462 albertel 5797: return $file;
1.465 albertel 5798: }
5799:
5800: sub current_machine_domains {
5801: my $hostname=$hostname{$perlvar{'lonHostID'}};
5802: my @domains;
5803: while( my($id, $name) = each(%hostname)) {
1.467 matthew 5804: # &logthis("-$id-$name-$hostname-");
1.465 albertel 5805: if ($hostname eq $name) {
5806: push(@domains,$hostdom{$id});
5807: }
5808: }
5809: return @domains;
5810: }
5811:
5812: sub current_machine_ids {
5813: my $hostname=$hostname{$perlvar{'lonHostID'}};
5814: my @ids;
5815: while( my($id, $name) = each(%hostname)) {
1.467 matthew 5816: # &logthis("-$id-$name-$hostname-");
1.465 albertel 5817: if ($hostname eq $name) {
5818: push(@ids,$id);
5819: }
5820: }
5821: return @ids;
1.31 www 5822: }
5823:
5824: # ------------------------------------------------------------- Declutters URLs
5825:
5826: sub declutter {
5827: my $thisfn=shift;
1.569 albertel 5828: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 5829: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 5830: $thisfn=~s/^\///;
5831: $thisfn=~s/^res\///;
1.235 www 5832: $thisfn=~s/\?.+$//;
1.268 www 5833: return $thisfn;
5834: }
5835:
5836: # ------------------------------------------------------------- Clutter up URLs
5837:
5838: sub clutter {
5839: my $thisfn='/'.&declutter(shift);
1.609 banghart 5840: unless ($thisfn=~/^\/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)\//) {
1.270 www 5841: $thisfn='/res'.$thisfn;
5842: }
1.31 www 5843: return $thisfn;
1.12 www 5844: }
5845:
1.557 albertel 5846: sub freeze_escape {
5847: my ($value)=@_;
5848: if (ref($value)) {
5849: $value=&nfreeze($value);
5850: return '__FROZEN__'.&escape($value);
5851: }
5852: return &escape($value);
5853: }
5854:
1.12 www 5855: # -------------------------------------------------------- Escape Special Chars
5856:
5857: sub escape {
5858: my $str=shift;
5859: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
5860: return $str;
5861: }
5862:
5863: # ----------------------------------------------------- Un-Escape Special Chars
5864:
5865: sub unescape {
5866: my $str=shift;
5867: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
5868: return $str;
5869: }
1.11 www 5870:
1.557 albertel 5871: sub thaw_unescape {
5872: my ($value)=@_;
5873: if ($value =~ /^__FROZEN__/) {
5874: substr($value,0,10,undef);
5875: $value=&unescape($value);
5876: return &thaw($value);
5877: }
5878: return &unescape($value);
5879: }
5880:
1.415 albertel 5881: sub mod_perl_version {
1.580 albertel 5882: return 1;
1.415 albertel 5883: if (defined($perlvar{'MODPERL2'})) {
5884: return 2;
5885: }
1.436 albertel 5886: }
5887:
5888: sub correct_line_ends {
5889: my ($result)=@_;
5890: $$result =~s/\r\n/\n/mg;
5891: $$result =~s/\r/\n/mg;
1.415 albertel 5892: }
1.1 albertel 5893: # ================================================================ Main Program
5894:
1.184 www 5895: sub goodbye {
1.204 albertel 5896: &logthis("Starting Shut down");
1.443 albertel 5897: #not converted to using infrastruture and probably shouldn't be
1.599 albertel 5898: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&freeze(\%badServerCache))));
1.443 albertel 5899: #converted
1.599 albertel 5900: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
5901: &logthis(sprintf("%-20s is %s",'%homecache',length(&freeze(\%homecache))));
5902: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&freeze(\%titlecache))));
5903: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&freeze(\%courseresdatacache))));
1.425 albertel 5904: #1.1 only
1.599 albertel 5905: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&freeze(\%userresdatacache))));
5906: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&freeze(\%getsectioncache))));
5907: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&freeze(\%courseresversioncache))));
5908: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&freeze(\%resversioncache))));
5909: &logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
5910: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
5911: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 5912: &flushcourselogs();
5913: &logthis("Shutting down");
1.362 albertel 5914: return DONE;
1.184 www 5915: }
5916:
1.179 www 5917: BEGIN {
1.228 harris41 5918: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
1.195 www 5919: unless ($readit) {
1.217 harris41 5920: {
1.581 matthew 5921: # FIXME: Use LONCAPA::Configuration::read_conf here and omit next block
1.448 albertel 5922: open(my $config,"</etc/httpd/conf/loncapa.conf");
1.217 harris41 5923:
5924: while (my $configline=<$config>) {
1.484 albertel 5925: if ($configline=~/\S/ && $configline =~ /^[^\#]*PerlSetVar/) {
1.1 albertel 5926: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
1.8 www 5927: chomp($varvalue);
1.1 albertel 5928: $perlvar{$varname}=$varvalue;
5929: }
5930: }
1.448 albertel 5931: close($config);
1.1 albertel 5932: }
1.227 harris41 5933: {
1.448 albertel 5934: open(my $config,"</etc/httpd/conf/loncapa_apache.conf");
1.227 harris41 5935:
5936: while (my $configline=<$config>) {
5937: if ($configline =~ /^[^\#]*PerlSetVar/) {
5938: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
5939: chomp($varvalue);
5940: $perlvar{$varname}=$varvalue;
5941: }
5942: }
1.448 albertel 5943: close($config);
1.227 harris41 5944: }
1.1 albertel 5945:
1.327 albertel 5946: # ------------------------------------------------------------ Read domain file
5947: {
5948: %domaindescription = ();
5949: %domain_auth_def = ();
5950: %domain_auth_arg_def = ();
1.448 albertel 5951: my $fh;
5952: if (open($fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/domain.tab')) {
1.327 albertel 5953: while (<$fh>) {
1.390 matthew 5954: next if (/^(\#|\s*$)/);
5955: # next if /^\#/;
1.327 albertel 5956: chomp;
1.403 www 5957: my ($domain, $domain_description, $def_auth, $def_auth_arg,
5958: $def_lang, $city, $longi, $lati) = split(/:/,$_);
5959: $domain_auth_def{$domain}=$def_auth;
1.327 albertel 5960: $domain_auth_arg_def{$domain}=$def_auth_arg;
1.403 www 5961: $domaindescription{$domain}=$domain_description;
5962: $domain_lang_def{$domain}=$def_lang;
5963: $domain_city{$domain}=$city;
5964: $domain_longi{$domain}=$longi;
5965: $domain_lati{$domain}=$lati;
5966:
1.448 albertel 5967: # &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}");
1.327 albertel 5968: # &logthis("Domain.tab: $domain ".$domaindescription{$domain} );
1.448 albertel 5969: }
1.327 albertel 5970: }
1.448 albertel 5971: close ($fh);
1.327 albertel 5972: }
5973:
5974:
1.1 albertel 5975: # ------------------------------------------------------------- Read hosts file
5976: {
1.448 albertel 5977: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
1.1 albertel 5978:
5979: while (my $configline=<$config>) {
1.303 matthew 5980: next if ($configline =~ /^(\#|\s*$)/);
1.154 www 5981: chomp($configline);
1.595 albertel 5982: my ($id,$domain,$role,$name)=split(/:/,$configline);
1.597 albertel 5983: $name=~s/\s//g;
1.595 albertel 5984: if ($id && $domain && $role && $name) {
1.252 albertel 5985: $hostname{$id}=$name;
5986: $hostdom{$id}=$domain;
5987: if ($role eq 'library') { $libserv{$id}=$name; }
1.245 www 5988: }
1.1 albertel 5989: }
1.448 albertel 5990: close($config);
1.619 albertel 5991: # FIXME: dev server don't want this, production servers _do_ want this
1.654 albertel 5992: #&get_iphost();
1.1 albertel 5993: }
5994:
1.598 albertel 5995: sub get_iphost {
5996: if (%iphost) { return %iphost; }
1.653 albertel 5997: my %name_to_ip;
1.598 albertel 5998: foreach my $id (keys(%hostname)) {
5999: my $name=$hostname{$id};
1.653 albertel 6000: my $ip;
6001: if (!exists($name_to_ip{$name})) {
6002: $ip = gethostbyname($name);
6003: if (!$ip || length($ip) ne 4) {
6004: &logthis("Skipping host $id name $name no IP found\n");
6005: next;
6006: }
6007: $ip=inet_ntoa($ip);
6008: $name_to_ip{$name} = $ip;
6009: } else {
6010: $ip = $name_to_ip{$name};
1.598 albertel 6011: }
6012: push(@{$iphost{$ip}},$id);
6013: }
6014: return %iphost;
6015: }
6016:
1.1 albertel 6017: # ------------------------------------------------------ Read spare server file
6018: {
1.448 albertel 6019: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 6020:
6021: while (my $configline=<$config>) {
6022: chomp($configline);
1.284 matthew 6023: if ($configline) {
1.1 albertel 6024: $spareid{$configline}=1;
6025: }
6026: }
1.448 albertel 6027: close($config);
1.1 albertel 6028: }
1.11 www 6029: # ------------------------------------------------------------ Read permissions
6030: {
1.448 albertel 6031: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 6032:
6033: while (my $configline=<$config>) {
1.448 albertel 6034: chomp($configline);
6035: if ($configline) {
6036: my ($role,$perm)=split(/ /,$configline);
6037: if ($perm ne '') { $pr{$role}=$perm; }
6038: }
1.11 www 6039: }
1.448 albertel 6040: close($config);
1.11 www 6041: }
6042:
6043: # -------------------------------------------- Read plain texts for permissions
6044: {
1.448 albertel 6045: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 6046:
6047: while (my $configline=<$config>) {
1.448 albertel 6048: chomp($configline);
6049: if ($configline) {
6050: my ($short,$plain)=split(/:/,$configline);
6051: if ($plain ne '') { $prp{$short}=$plain; }
6052: }
1.135 www 6053: }
1.448 albertel 6054: close($config);
1.135 www 6055: }
6056:
6057: # ---------------------------------------------------------- Read package table
6058: {
1.448 albertel 6059: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 6060:
6061: while (my $configline=<$config>) {
1.483 albertel 6062: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 6063: chomp($configline);
6064: my ($short,$plain)=split(/:/,$configline);
6065: my ($pack,$name)=split(/\&/,$short);
6066: if ($plain ne '') {
6067: $packagetab{$pack.'&'.$name.'&name'}=$name;
6068: $packagetab{$short}=$plain;
6069: }
1.11 www 6070: }
1.448 albertel 6071: close($config);
1.329 matthew 6072: }
6073:
6074: # ------------- set up temporary directory
6075: {
6076: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
6077:
1.11 www 6078: }
6079:
1.599 albertel 6080: $memcache=new Cache::Memcached({'servers'=>['127.0.0.1:11211']});
1.185 www 6081:
1.281 www 6082: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 6083: $dumpcount=0;
1.22 www 6084:
1.163 harris41 6085: &logtouch();
1.12 www 6086: &logthis('<font color=yellow>INFO: Read configuration</font>');
1.195 www 6087: $readit=1;
1.564 albertel 6088: {
6089: use integer;
6090: my $test=(2**32)+1;
1.568 albertel 6091: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 6092: &logthis(" Detected 64bit platform ($_64bit)");
6093: }
1.195 www 6094: }
1.1 albertel 6095: }
1.179 www 6096:
1.1 albertel 6097: 1;
1.191 harris41 6098: __END__
6099:
1.243 albertel 6100: =pod
6101:
1.191 harris41 6102: =head1 NAME
6103:
1.243 albertel 6104: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 6105:
6106: =head1 SYNOPSIS
6107:
1.243 albertel 6108: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 6109:
6110: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
6111:
1.243 albertel 6112: Common parameters:
6113:
6114: =over 4
6115:
6116: =item *
6117:
6118: $uname : an internal username (if $cname expecting a course Id specifically)
6119:
6120: =item *
6121:
6122: $udom : a domain (if $cdom expecting a course's domain specifically)
6123:
6124: =item *
6125:
6126: $symb : a resource instance identifier
6127:
6128: =item *
6129:
6130: $namespace : the name of a .db file that contains the data needed or
6131: being set.
6132:
6133: =back
6134:
1.394 bowersj2 6135: =head1 OVERVIEW
1.191 harris41 6136:
1.394 bowersj2 6137: lonnet provides subroutines which interact with the
6138: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
6139: about classes, users, and resources.
1.243 albertel 6140:
6141: For many of these objects you can also use this to store data about
6142: them or modify them in various ways.
1.191 harris41 6143:
1.394 bowersj2 6144: =head2 Symbs
1.191 harris41 6145:
1.394 bowersj2 6146: To identify a specific instance of a resource, LON-CAPA uses symbols
6147: or "symbs"X<symb>. These identifiers are built from the URL of the
6148: map, the resource number of the resource in the map, and the URL of
6149: the resource itself. The latter is somewhat redundant, but might help
6150: if maps change.
6151:
6152: An example is
6153:
6154: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
6155:
6156: The respective map entry is
6157:
6158: <resource id="19" src="/res/msu/korte/tests/part12.problem"
6159: title="Problem 2">
6160: </resource>
6161:
6162: Symbs are used by the random number generator, as well as to store and
6163: restore data specific to a certain instance of for example a problem.
6164:
6165: =head2 Storing And Retrieving Data
6166:
6167: X<store()>X<cstore()>X<restore()>Three of the most important functions
6168: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
6169: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
6170: is is the non-critical message twin of cstore. These functions are for
6171: handlers to store a perl hash to a user's permanent data space in an
6172: easy manner, and to retrieve it again on another call. It is expected
6173: that a handler would use this once at the beginning to retrieve data,
6174: and then again once at the end to send only the new data back.
6175:
6176: The data is stored in the user's data directory on the user's
6177: homeserver under the ID of the course.
6178:
6179: The hash that is returned by restore will have all of the previous
6180: value for all of the elements of the hash.
6181:
6182: Example:
6183:
6184: #creating a hash
6185: my %hash;
6186: $hash{'foo'}='bar';
6187:
6188: #storing it
6189: &Apache::lonnet::cstore(\%hash);
6190:
6191: #changing a value
6192: $hash{'foo'}='notbar';
6193:
6194: #adding a new value
6195: $hash{'bar'}='foo';
6196: &Apache::lonnet::cstore(\%hash);
6197:
6198: #retrieving the hash
6199: my %history=&Apache::lonnet::restore();
6200:
6201: #print the hash
6202: foreach my $key (sort(keys(%history))) {
6203: print("\%history{$key} = $history{$key}");
6204: }
6205:
6206: Will print out:
1.191 harris41 6207:
1.394 bowersj2 6208: %history{1:foo} = bar
6209: %history{1:keys} = foo:timestamp
6210: %history{1:timestamp} = 990455579
6211: %history{2:bar} = foo
6212: %history{2:foo} = notbar
6213: %history{2:keys} = foo:bar:timestamp
6214: %history{2:timestamp} = 990455580
6215: %history{bar} = foo
6216: %history{foo} = notbar
6217: %history{timestamp} = 990455580
6218: %history{version} = 2
6219:
6220: Note that the special hash entries C<keys>, C<version> and
6221: C<timestamp> were added to the hash. C<version> will be equal to the
6222: total number of versions of the data that have been stored. The
6223: C<timestamp> attribute will be the UNIX time the hash was
6224: stored. C<keys> is available in every historical section to list which
6225: keys were added or changed at a specific historical revision of a
6226: hash.
6227:
6228: B<Warning>: do not store the hash that restore returns directly. This
6229: will cause a mess since it will restore the historical keys as if the
6230: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 6231:
1.394 bowersj2 6232: Calling convention:
1.191 harris41 6233:
1.394 bowersj2 6234: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
6235: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 6236:
1.394 bowersj2 6237: For more detailed information, see lonnet specific documentation.
1.191 harris41 6238:
1.394 bowersj2 6239: =head1 RETURN MESSAGES
1.191 harris41 6240:
1.394 bowersj2 6241: =over 4
1.191 harris41 6242:
1.394 bowersj2 6243: =item * B<con_lost>: unable to contact remote host
1.191 harris41 6244:
1.394 bowersj2 6245: =item * B<con_delayed>: unable to contact remote host, message will be delivered
6246: when the connection is brought back up
1.191 harris41 6247:
1.394 bowersj2 6248: =item * B<con_failed>: unable to contact remote host and unable to save message
6249: for later delivery
1.191 harris41 6250:
1.394 bowersj2 6251: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 6252:
1.394 bowersj2 6253: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 6254: that was requested
1.191 harris41 6255:
1.243 albertel 6256: =back
1.191 harris41 6257:
1.243 albertel 6258: =head1 PUBLIC SUBROUTINES
1.191 harris41 6259:
1.243 albertel 6260: =head2 Session Environment Functions
1.191 harris41 6261:
1.243 albertel 6262: =over 4
1.191 harris41 6263:
1.394 bowersj2 6264: =item *
6265: X<appenv()>
6266: B<appenv(%hash)>: the value of %hash is written to
6267: the user envirnoment file, and will be restored for each access this
1.620 albertel 6268: user makes during this session, also modifies the %env for the current
1.394 bowersj2 6269: process
1.191 harris41 6270:
6271: =item *
1.394 bowersj2 6272: X<delenv()>
6273: B<delenv($regexp)>: removes all items from the session
6274: environment file that matches the regular expression in $regexp. The
1.620 albertel 6275: values are also delted from the current processes %env.
1.191 harris41 6276:
1.243 albertel 6277: =back
6278:
6279: =head2 User Information
1.191 harris41 6280:
1.243 albertel 6281: =over 4
1.191 harris41 6282:
6283: =item *
1.394 bowersj2 6284: X<queryauthenticate()>
6285: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 6286: authentication scheme
6287:
6288: =item *
1.394 bowersj2 6289: X<authenticate()>
6290: B<authenticate($uname,$upass,$udom)>: try to
6291: authenticate user from domain's lib servers (first use the current
6292: one). C<$upass> should be the users password.
1.191 harris41 6293:
6294: =item *
1.394 bowersj2 6295: X<homeserver()>
6296: B<homeserver($uname,$udom)>: find the server which has
6297: the user's directory and files (there must be only one), this caches
6298: the answer, and also caches if there is a borken connection.
1.191 harris41 6299:
6300: =item *
1.394 bowersj2 6301: X<idget()>
6302: B<idget($udom,@ids)>: find the usernames behind a list of IDs
6303: (IDs are a unique resource in a domain, there must be only 1 ID per
6304: username, and only 1 username per ID in a specific domain) (returns
6305: hash: id=>name,id=>name)
1.191 harris41 6306:
6307: =item *
1.394 bowersj2 6308: X<idrget()>
6309: B<idrget($udom,@unames)>: find the IDs behind a list of
6310: usernames (returns hash: name=>id,name=>id)
1.191 harris41 6311:
6312: =item *
1.394 bowersj2 6313: X<idput()>
6314: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 6315:
6316: =item *
1.394 bowersj2 6317: X<rolesinit()>
6318: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 6319:
6320: =item *
1.551 albertel 6321: X<getsection()>
6322: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 6323: course $cname, return section name/number or '' for "not in course"
6324: and '-1' for "no section"
6325:
6326: =item *
1.394 bowersj2 6327: X<userenvironment()>
6328: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 6329: passed in @what from the requested user's environment, returns a hash
6330:
6331: =back
6332:
6333: =head2 User Roles
6334:
6335: =over 4
6336:
6337: =item *
6338:
6339: allowed($priv,$uri) : check for a user privilege; returns codes for allowed
6340: actions
6341: F: full access
6342: U,I,K: authentication modes (cxx only)
6343: '': forbidden
6344: 1: user needs to choose course
6345: 2: browse allowed
6346:
6347: =item *
6348:
6349: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
6350: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
6351: and course level
6352:
6353: =item *
6354:
6355: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
6356: explanation of a user role term
6357:
6358: =back
6359:
6360: =head2 User Modification
6361:
6362: =over 4
6363:
6364: =item *
6365:
6366: assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a
6367: user for the level given by URL. Optional start and end dates (leave empty
6368: string or zero for "no date")
1.191 harris41 6369:
6370: =item *
6371:
1.243 albertel 6372: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
6373: change a users, password, possible return values are: ok,
6374: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
6375: refused
1.191 harris41 6376:
6377: =item *
6378:
1.243 albertel 6379: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 6380:
6381: =item *
6382:
1.243 albertel 6383: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) :
6384: modify user
1.191 harris41 6385:
6386: =item *
6387:
1.286 matthew 6388: modifystudent
6389:
6390: modify a students enrollment and identification information.
6391: The course id is resolved based on the current users environment.
6392: This means the envoking user must be a course coordinator or otherwise
6393: associated with a course.
6394:
1.297 matthew 6395: This call is essentially a wrapper for lonnet::modifyuser and
6396: lonnet::modify_student_enrollment
1.286 matthew 6397:
6398: Inputs:
6399:
6400: =over 4
6401:
6402: =item B<$udom> Students loncapa domain
6403:
6404: =item B<$uname> Students loncapa login name
6405:
6406: =item B<$uid> Students id/student number
6407:
6408: =item B<$umode> Students authentication mode
6409:
6410: =item B<$upass> Students password
6411:
6412: =item B<$first> Students first name
6413:
6414: =item B<$middle> Students middle name
6415:
6416: =item B<$last> Students last name
6417:
6418: =item B<$gene> Students generation
6419:
6420: =item B<$usec> Students section in course
6421:
6422: =item B<$end> Unix time of the roles expiration
6423:
6424: =item B<$start> Unix time of the roles start date
6425:
6426: =item B<$forceid> If defined, allow $uid to be changed
6427:
6428: =item B<$desiredhome> server to use as home server for student
6429:
6430: =back
1.297 matthew 6431:
6432: =item *
6433:
6434: modify_student_enrollment
6435:
6436: Change a students enrollment status in a class. The environment variable
6437: 'role.request.course' must be defined for this function to proceed.
6438:
6439: Inputs:
6440:
6441: =over 4
6442:
6443: =item $udom, students domain
6444:
6445: =item $uname, students name
6446:
6447: =item $uid, students user id
6448:
6449: =item $first, students first name
6450:
6451: =item $middle
6452:
6453: =item $last
6454:
6455: =item $gene
6456:
6457: =item $usec
6458:
6459: =item $end
6460:
6461: =item $start
6462:
6463: =back
6464:
1.191 harris41 6465:
6466: =item *
6467:
1.243 albertel 6468: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
6469: custom role; give a custom role to a user for the level given by URL. Specify
6470: name and domain of role author, and role name
1.191 harris41 6471:
6472: =item *
6473:
1.243 albertel 6474: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 6475:
6476: =item *
6477:
1.243 albertel 6478: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
6479:
6480: =back
6481:
6482: =head2 Course Infomation
6483:
6484: =over 4
1.191 harris41 6485:
6486: =item *
6487:
1.631 albertel 6488: coursedescription($courseid) : returns a hash of information about the
6489: specified course id, including all environment settings for the
6490: course, the description of the course will be in the hash under the
6491: key 'description'
1.191 harris41 6492:
6493: =item *
6494:
1.624 albertel 6495: resdata($name,$domain,$type,@which) : request for current parameter
6496: setting for a specific $type, where $type is either 'course' or 'user',
6497: @what should be a list of parameters to ask about. This routine caches
6498: answers for 5 minutes.
1.243 albertel 6499:
6500: =back
6501:
6502: =head2 Course Modification
6503:
6504: =over 4
1.191 harris41 6505:
6506: =item *
6507:
1.243 albertel 6508: writecoursepref($courseid,%prefs) : write preferences (environment
6509: database) for a course
1.191 harris41 6510:
6511: =item *
6512:
1.243 albertel 6513: createcourse($udom,$description,$url) : make/modify course
6514:
6515: =back
6516:
6517: =head2 Resource Subroutines
6518:
6519: =over 4
1.191 harris41 6520:
6521: =item *
6522:
1.243 albertel 6523: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 6524:
6525: =item *
6526:
1.243 albertel 6527: repcopy($filename) : subscribes to the requested file, and attempts to
6528: replicate from the owning library server, Might return
1.607 raeburn 6529: 'unavailable', 'not_found', 'forbidden', 'ok', or
6530: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 6531: resource. Expects the local filesystem pathname
6532: (/home/httpd/html/res/....)
6533:
6534: =back
6535:
6536: =head2 Resource Information
6537:
6538: =over 4
1.191 harris41 6539:
6540: =item *
6541:
1.243 albertel 6542: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
6543: a vairety of different possible values, $varname should be a request
6544: string, and the other parameters can be used to specify who and what
6545: one is asking about.
6546:
6547: Possible values for $varname are environment.lastname (or other item
6548: from the envirnment hash), user.name (or someother aspect about the
6549: user), resource.0.maxtries (or some other part and parameter of a
6550: resource)
1.204 albertel 6551:
6552: =item *
6553:
1.243 albertel 6554: directcondval($number) : get current value of a condition; reads from a state
6555: string
1.204 albertel 6556:
6557: =item *
6558:
1.243 albertel 6559: condval($condidx) : value of condition index based on state
1.204 albertel 6560:
6561: =item *
6562:
1.243 albertel 6563: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
6564: resource's metadata, $what should be either a specific key, or either
6565: 'keys' (to get a list of possible keys) or 'packages' to get a list of
6566: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
6567:
6568: this function automatically caches all requests
1.191 harris41 6569:
6570: =item *
6571:
1.243 albertel 6572: metadata_query($query,$custom,$customshow) : make a metadata query against the
6573: network of library servers; returns file handle of where SQL and regex results
6574: will be stored for query
1.191 harris41 6575:
6576: =item *
6577:
1.243 albertel 6578: symbread($filename) : return symbolic list entry (filename argument optional);
6579: returns the data handle
1.191 harris41 6580:
6581: =item *
6582:
1.243 albertel 6583: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 6584: a possible symb for the URL in $thisfn, and if is an encryypted
6585: resource that the user accessed using /enc/ returns a 1 on success, 0
6586: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 6587: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 6588:
1.191 harris41 6589:
6590: =item *
6591:
1.243 albertel 6592: symbclean($symb) : removes versions numbers from a symb, returns the
6593: cleaned symb
1.191 harris41 6594:
6595: =item *
6596:
1.243 albertel 6597: is_on_map($uri) : checks if the $uri is somewhere on the current
6598: course map, user must be in a course for it to work.
1.191 harris41 6599:
6600: =item *
6601:
1.243 albertel 6602: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 6603:
6604: =item *
6605:
1.243 albertel 6606: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
6607: a random seed, all arguments are optional, if they aren't sent it uses the
6608: environment to derive them. Note: if symb isn't sent and it can't get one
6609: from &symbread it will use the current time as its return value
1.191 harris41 6610:
6611: =item *
6612:
1.243 albertel 6613: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
6614: unfakeable, receipt
1.191 harris41 6615:
6616: =item *
6617:
1.620 albertel 6618: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 6619:
6620: =item *
6621:
1.243 albertel 6622: countacc($url) : count the number of accesses to a given URL
1.191 harris41 6623:
6624: =item *
6625:
1.243 albertel 6626: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 6627:
6628: =item *
6629:
1.243 albertel 6630: checkin($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 $tcrsid)
1.191 harris41 6631:
6632: =item *
6633:
1.243 albertel 6634: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 6635:
6636: =item *
6637:
1.243 albertel 6638: devalidate($symb) : devalidate temporary spreadsheet calculations,
6639: forcing spreadsheet to reevaluate the resource scores next time.
6640:
6641: =back
6642:
6643: =head2 Storing/Retreiving Data
6644:
6645: =over 4
1.191 harris41 6646:
6647: =item *
6648:
1.243 albertel 6649: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
6650: for this url; hashref needs to be given and should be a \%hashname; the
6651: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 6652: be derived from the env
1.191 harris41 6653:
6654: =item *
6655:
1.243 albertel 6656: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
6657: uses critical subroutine
1.191 harris41 6658:
6659: =item *
6660:
1.243 albertel 6661: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
6662: all args are optional
1.191 harris41 6663:
6664: =item *
6665:
1.243 albertel 6666: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
6667: works very similar to store/cstore, but all data is stored in a
6668: temporary location and can be reset using tmpreset, $storehash should
6669: be a hash reference, returns nothing on success
1.191 harris41 6670:
6671: =item *
6672:
1.243 albertel 6673: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
6674: similar to restore, but all data is stored in a temporary location and
6675: can be reset using tmpreset. Returns a hash of values on success,
6676: error string otherwise.
1.191 harris41 6677:
6678: =item *
6679:
1.243 albertel 6680: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
6681: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 6682:
6683: =item *
6684:
1.243 albertel 6685: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
6686: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 6687:
6688: =item *
6689:
1.243 albertel 6690: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
6691: namesp ($udom and $uname are optional)
1.191 harris41 6692:
6693: =item *
6694:
1.243 albertel 6695: dump($namespace,$udom,$uname,$regexp) :
6696: dumps the complete (or key matching regexp) namespace into a hash
6697: ($udom, $uname and $regexp are optional)
1.449 matthew 6698:
6699: =item *
6700:
6701: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
6702: $store can be a scalar, an array reference, or if the amount to be
6703: incremented is > 1, a hash reference.
6704:
6705: ($udom and $uname are optional)
1.191 harris41 6706:
6707: =item *
6708:
1.243 albertel 6709: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
6710: ($udom and $uname are optional)
1.191 harris41 6711:
6712: =item *
6713:
1.524 raeburn 6714: putstore($namespace,$storehash,$udomain,$uname) : stores hash in namesp
6715: keys used in storehash include version information (e.g., 1:$symb:message etc.) as
6716: used in records written by &store and retrieved by &restore. This function
6717: was created for use in editing discussion posts, without incrementing the
6718: version number included in the key for a particular post. The colon
6719: separated list of attribute names (e.g., the value associated with the key
6720: 1:keys:$symb) is also generated and passed in the ampersand separated
6721: items sent to lonnet::reply().
6722:
6723: =item *
6724:
1.243 albertel 6725: cput($namespace,$storehash,$udom,$uname) : critical put
6726: ($udom and $uname are optional)
1.191 harris41 6727:
6728: =item *
6729:
1.243 albertel 6730: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
6731: reference filled in from namesp (encrypts the return communication)
6732: ($udom and $uname are optional)
1.191 harris41 6733:
6734: =item *
6735:
1.243 albertel 6736: log($udom,$name,$home,$message) : write to permanent log for user; use
6737: critical subroutine
6738:
6739: =back
6740:
6741: =head2 Network Status Functions
6742:
6743: =over 4
1.191 harris41 6744:
6745: =item *
6746:
6747: dirlist($uri) : return directory list based on URI
6748:
6749: =item *
6750:
1.243 albertel 6751: spareserver() : find server with least workload from spare.tab
6752:
6753: =back
6754:
6755: =head2 Apache Request
6756:
6757: =over 4
1.191 harris41 6758:
6759: =item *
6760:
1.243 albertel 6761: ssi($url,%hash) : server side include, does a complete request cycle on url to
6762: localhost, posts hash
6763:
6764: =back
6765:
6766: =head2 Data to String to Data
6767:
6768: =over 4
1.191 harris41 6769:
6770: =item *
6771:
1.243 albertel 6772: hash2str(%hash) : convert a hash into a string complete with escaping and '='
6773: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 6774:
6775: =item *
6776:
1.243 albertel 6777: hashref2str($hashref) : convert a hashref into a string complete with
6778: escaping and '=' and '&' separators, supports elements that are
6779: arrayrefs and hashrefs
1.191 harris41 6780:
6781: =item *
6782:
1.243 albertel 6783: arrayref2str($arrayref) : convert an arrayref into a string complete
6784: with escaping and '&' separators, supports elements that are arrayrefs
6785: and hashrefs
1.191 harris41 6786:
6787: =item *
6788:
1.243 albertel 6789: str2hash($string) : convert string to hash using unescaping and
6790: splitting on '=' and '&', supports elements that are arrayrefs and
6791: hashrefs
1.191 harris41 6792:
6793: =item *
6794:
1.243 albertel 6795: str2array($string) : convert string to hash using unescaping and
6796: splitting on '&', supports elements that are arrayrefs and hashrefs
6797:
6798: =back
6799:
6800: =head2 Logging Routines
6801:
6802: =over 4
6803:
6804: These routines allow one to make log messages in the lonnet.log and
6805: lonnet.perm logfiles.
1.191 harris41 6806:
6807: =item *
6808:
1.243 albertel 6809: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 6810:
6811: =item *
6812:
1.243 albertel 6813: logthis() : append message to the normal lonnet.log file, it gets
6814: preiodically rolled over and deleted.
1.191 harris41 6815:
6816: =item *
6817:
1.243 albertel 6818: logperm() : append a permanent message to lonnet.perm.log, this log
6819: file never gets deleted by any automated portion of the system, only
6820: messages of critical importance should go in here.
6821:
6822: =back
6823:
6824: =head2 General File Helper Routines
6825:
6826: =over 4
1.191 harris41 6827:
6828: =item *
6829:
1.481 raeburn 6830: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
6831: (a) files in /uploaded
6832: (i) If a local copy of the file exists -
6833: compares modification date of local copy with last-modified date for
6834: definitive version stored on home server for course. If local copy is
6835: stale, requests a new version from the home server and stores it.
6836: If the original has been removed from the home server, then local copy
6837: is unlinked.
6838: (ii) If local copy does not exist -
6839: requests the file from the home server and stores it.
6840:
6841: If $caller is 'uploadrep':
6842: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
6843: for request for files originally uploaded via DOCS.
6844: - returns 'ok' if fresh local copy now available, -1 otherwise.
6845:
6846: Otherwise:
6847: This indicates a call from the content generation phase of the request.
6848: - returns the entire contents of the file or -1.
6849:
6850: (b) files in /res
6851: - returns the entire contents of a file or -1;
6852: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 6853:
6854: =item *
6855:
1.243 albertel 6856: filelocation($dir,$file) : returns file system location of a file
6857: based on URI; meant to be "fairly clean" absolute reference, $dir is a
6858: directory that relative $file lookups are to looked in ($dir of /a/dir
6859: and a file of ../bob will become /a/bob)
1.191 harris41 6860:
6861: =item *
6862:
6863: hreflocation($dir,$file) : returns file system location or a URL; same as
6864: filelocation except for hrefs
6865:
6866: =item *
6867:
6868: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
6869:
1.243 albertel 6870: =back
6871:
1.608 albertel 6872: =head2 Usererfile file routines (/uploaded*)
6873:
6874: =over 4
6875:
6876: =item *
6877:
6878: userfileupload(): main rotine for putting a file in a user or course's
6879: filespace, arguments are,
6880:
1.620 albertel 6881: formname - required - this is the name of the element in $env where the
1.608 albertel 6882: filename, and the contents of the file to create/modifed exist
1.620 albertel 6883: the filename is in $env{'form.'.$formname.'.filename'} and the
6884: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 6885: coursedoc - if true, store the file in the course of the active role
6886: of the current user
6887: subdir - required - subdirectory to put the file in under ../userfiles/
6888: if undefined, it will be placed in "unknown"
6889:
6890: (This routine calls clean_filename() to remove any dangerous
6891: characters from the filename, and then calls finuserfileupload() to
6892: complete the transaction)
6893:
6894: returns either the url of the uploaded file (/uploaded/....) if successful
6895: and /adm/notfound.html if unsuccessful
6896:
6897: =item *
6898:
6899: clean_filename(): routine for cleaing a filename up for storage in
6900: userfile space, argument is:
6901:
6902: filename - proposed filename
6903:
6904: returns: the new clean filename
6905:
6906: =item *
6907:
6908: finishuserfileupload(): routine that creaes and sends the file to
6909: userspace, probably shouldn't be called directly
6910:
6911: docuname: username or courseid of destination for the file
6912: docudom: domain of user/course of destination for the file
6913: formname: same as for userfileupload()
6914: fname: filename (inculding subdirectories) for the file
6915:
6916: returns either the url of the uploaded file (/uploaded/....) if successful
6917: and /adm/notfound.html if unsuccessful
6918:
6919: =item *
6920:
6921: renameuserfile(): renames an existing userfile to a new name
6922:
6923: Args:
6924: docuname: username or courseid of destination for the file
6925: docudom: domain of user/course of destination for the file
6926: old: current file name (including any subdirs under userfiles)
6927: new: desired file name (including any subdirs under userfiles)
6928:
6929: =item *
6930:
6931: mkdiruserfile(): creates a directory is a userfiles dir
6932:
6933: Args:
6934: docuname: username or courseid of destination for the file
6935: docudom: domain of user/course of destination for the file
6936: dir: dir to create (including any subdirs under userfiles)
6937:
6938: =item *
6939:
6940: removeuserfile(): removes a file that exists in userfiles
6941:
6942: Args:
6943: docuname: username or courseid of destination for the file
6944: docudom: domain of user/course of destination for the file
6945: fname: filname to delete (including any subdirs under userfiles)
6946:
6947: =item *
6948:
6949: removeuploadedurl(): convience function for removeuserfile()
6950:
6951: Args:
6952: url: a full /uploaded/... url to delete
6953:
6954: =back
6955:
1.243 albertel 6956: =head2 HTTP Helper Routines
6957:
6958: =over 4
6959:
1.191 harris41 6960: =item *
6961:
6962: escape() : unpack non-word characters into CGI-compatible hex codes
6963:
6964: =item *
6965:
6966: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
6967:
1.243 albertel 6968: =back
6969:
6970: =head1 PRIVATE SUBROUTINES
6971:
6972: =head2 Underlying communication routines (Shouldn't call)
6973:
6974: =over 4
6975:
6976: =item *
6977:
6978: subreply() : tries to pass a message to lonc, returns con_lost if incapable
6979:
6980: =item *
6981:
6982: reply() : uses subreply to send a message to remote machine, logs all failures
6983:
6984: =item *
6985:
6986: critical() : passes a critical message to another server; if cannot
6987: get through then place message in connection buffer directory and
6988: returns con_delayed, if incapable of saving message, returns
6989: con_failed
6990:
6991: =item *
6992:
6993: reconlonc() : tries to reconnect lonc client processes.
6994:
6995: =back
6996:
6997: =head2 Resource Access Logging
6998:
6999: =over 4
7000:
7001: =item *
7002:
7003: flushcourselogs() : flush (save) buffer logs and access logs
7004:
7005: =item *
7006:
7007: courselog($what) : save message for course in hash
7008:
7009: =item *
7010:
7011: courseacclog($what) : save message for course using &courselog(). Perform
7012: special processing for specific resource types (problems, exams, quizzes, etc).
7013:
1.191 harris41 7014: =item *
7015:
7016: goodbye() : flush course logs and log shutting down; it is called in srm.conf
7017: as a PerlChildExitHandler
1.243 albertel 7018:
7019: =back
7020:
7021: =head2 Other
7022:
7023: =over 4
7024:
7025: =item *
7026:
7027: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 7028:
7029: =back
7030:
7031: =cut
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