Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.659
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.659 ! albertel 4: # $Id: lonnet.pm,v 1.658 2005/10/04 16:26:15 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
1.349 www 40: %courselogs %accesshash %userrolehash $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: }
1.186 www 1613: $dumpcount++;
1.157 www 1614: }
1615:
1616: sub courselog {
1617: my $what=shift;
1.158 www 1618: $what=time.':'.$what;
1.620 albertel 1619: unless ($env{'request.course.id'}) { return ''; }
1620: $coursedombuf{$env{'request.course.id'}}=
1621: $env{'course.'.$env{'request.course.id'}.'.domain'};
1622: $coursenumbuf{$env{'request.course.id'}}=
1623: $env{'course.'.$env{'request.course.id'}.'.num'};
1624: $coursehombuf{$env{'request.course.id'}}=
1625: $env{'course.'.$env{'request.course.id'}.'.home'};
1626: $coursedescrbuf{$env{'request.course.id'}}=
1627: $env{'course.'.$env{'request.course.id'}.'.description'};
1628: $courseinstcodebuf{$env{'request.course.id'}}=
1629: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
1630: $courseownerbuf{$env{'request.course.id'}}=
1631: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1632: if (defined $courselogs{$env{'request.course.id'}}) {
1633: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 1634: } else {
1.620 albertel 1635: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 1636: }
1.620 albertel 1637: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 1638: &flushcourselogs();
1639: }
1.158 www 1640: }
1641:
1642: sub courseacclog {
1643: my $fnsymb=shift;
1.620 albertel 1644: unless ($env{'request.course.id'}) { return ''; }
1645: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 1646: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 1647: $what.=':POST';
1.583 matthew 1648: # FIXME: Probably ought to escape things....
1.620 albertel 1649: foreach (keys %env) {
1.158 www 1650: if ($_=~/^form\.(.*)/) {
1.620 albertel 1651: $what.=':'.$1.'='.$env{$_};
1.158 www 1652: }
1.191 harris41 1653: }
1.583 matthew 1654: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
1655: # FIXME: We should not be depending on a form parameter that someone
1656: # editing lonsearchcat.pm might change in the future.
1.620 albertel 1657: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 1658: $what.= ':POST';
1659: # FIXME: Probably ought to escape things....
1660: foreach my $element ('courseexp','crsfulltext','crsrelated',
1661: 'crsdiscuss') {
1.620 albertel 1662: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 1663: }
1664: }
1.158 www 1665: }
1666: &courselog($what);
1.149 www 1667: }
1668:
1.185 www 1669: sub countacc {
1670: my $url=&declutter(shift);
1.458 matthew 1671: return if (! defined($url) || $url eq '');
1.620 albertel 1672: unless ($env{'request.course.id'}) { return ''; }
1673: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 1674: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 1675: $accesshash{$key}++;
1.185 www 1676: }
1.349 www 1677:
1.361 www 1678: sub linklog {
1679: my ($from,$to)=@_;
1680: $from=&declutter($from);
1681: $to=&declutter($to);
1682: $accesshash{$from.'___'.$to.'___comefrom'}=1;
1683: $accesshash{$to.'___'.$from.'___goto'}=1;
1684: }
1685:
1.349 www 1686: sub userrolelog {
1687: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1688: if (($trole=~/^ca/) || ($trole=~/^in/) ||
1689: ($trole=~/^cc/) || ($trole=~/^ep/) ||
1.469 www 1690: ($trole=~/^cr/) || ($trole=~/^ta/)) {
1.350 www 1691: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
1692: $userrolehash
1693: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 1694: =$tend.':'.$tstart;
1695: }
1.351 www 1696: }
1697:
1698: sub get_course_adv_roles {
1699: my $cid=shift;
1.620 albertel 1700: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 1701: my %coursehash=&coursedescription($cid);
1.470 www 1702: my %nothide=();
1703: foreach (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
1704: $nothide{join(':',split(/[\@\:]/,$_))}=1;
1705: }
1.351 www 1706: my %returnhash=();
1707: my %dumphash=
1708: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
1709: my $now=time;
1710: foreach (keys %dumphash) {
1711: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1712: if (($tstart) && ($tstart<0)) { next; }
1713: if (($tend) && ($tend<$now)) { next; }
1714: if (($tstart) && ($now<$tstart)) { next; }
1715: my ($role,$username,$domain,$section)=split(/\:/,$_);
1.576 albertel 1716: if ($username eq '' || $domain eq '') { next; }
1.470 www 1717: if ((&privileged($username,$domain)) &&
1718: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 1719: if ($role eq 'cr') { next; }
1.351 www 1720: my $key=&plaintext($role);
1.656 albertel 1721: if ($role =~ /^cr/) {
1722: $key=(split('/',$role))[3];
1723: }
1.351 www 1724: if ($section) { $key.=' (Sec/Grp '.$section.')'; }
1725: if ($returnhash{$key}) {
1726: $returnhash{$key}.=','.$username.':'.$domain;
1727: } else {
1728: $returnhash{$key}=$username.':'.$domain;
1729: }
1.400 www 1730: }
1731: return %returnhash;
1732: }
1733:
1734: sub get_my_roles {
1735: my ($uname,$udom)=@_;
1.620 albertel 1736: unless (defined($uname)) { $uname=$env{'user.name'}; }
1737: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.400 www 1738: my %dumphash=
1739: &dump('nohist_userroles',$udom,$uname);
1740: my %returnhash=();
1741: my $now=time;
1742: foreach (keys %dumphash) {
1743: my ($tend,$tstart)=split(/\:/,$dumphash{$_});
1744: if (($tstart) && ($tstart<0)) { next; }
1745: if (($tend) && ($tend<$now)) { next; }
1746: if (($tstart) && ($now<$tstart)) { next; }
1747: my ($role,$username,$domain,$section)=split(/\:/,$_);
1748: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
1.373 www 1749: }
1750: return %returnhash;
1.399 www 1751: }
1752:
1753: # ----------------------------------------------------- Frontpage Announcements
1754: #
1755: #
1756:
1757: sub postannounce {
1758: my ($server,$text)=@_;
1759: unless (&allowed('psa',$hostdom{$server})) { return 'refused'; }
1760: unless ($text=~/\w/) { $text=''; }
1761: return &reply('setannounce:'.&escape($text),$server);
1762: }
1763:
1764: sub getannounce {
1.448 albertel 1765:
1766: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 1767: my $announcement='';
1768: while (<$fh>) { $announcement .=$_; }
1.448 albertel 1769: close($fh);
1.399 www 1770: if ($announcement=~/\w/) {
1771: return
1772: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 1773: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 1774: } else {
1775: return '';
1776: }
1777: } else {
1778: return '';
1779: }
1.351 www 1780: }
1.353 www 1781:
1782: # ---------------------------------------------------------- Course ID routines
1783: # Deal with domain's nohist_courseid.db files
1784: #
1785:
1786: sub courseidput {
1787: my ($domain,$what,$coursehome)=@_;
1788: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
1789: }
1790:
1791: sub courseiddump {
1.622 raeburn 1792: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref)=@_;
1.353 www 1793: my %returnhash=();
1.355 www 1794: unless ($domfilter) { $domfilter=''; }
1.353 www 1795: foreach my $tryserver (keys %libserv) {
1.511 raeburn 1796: if ( ($hostidflag == 1 && grep/^$tryserver$/,@{$hostidref}) || (!defined($hostidflag)) ) {
1.506 raeburn 1797: if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
1798: foreach (
1799: split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
1.571 raeburn 1800: $sincefilter.':'.&escape($descfilter).':'.
1.622 raeburn 1801: &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter),
1.354 www 1802: $tryserver))) {
1.506 raeburn 1803: my ($key,$value)=split(/\=/,$_);
1804: if (($key) && ($value)) {
1.516 raeburn 1805: $returnhash{&unescape($key)}=$value;
1.506 raeburn 1806: }
1.353 www 1807: }
1808: }
1809: }
1810: }
1811: return %returnhash;
1812: }
1813:
1.658 raeburn 1814: # ---------------------------------------------------------- DC e-mail
1815: sub dcmaildump {
1816: my ($dom,$startdate,$enddate,$senders) = @_;
1817: my %returnhash=();
1818: foreach my $tryserver (keys %libserv) {
1819: if ($hostdom{$tryserver} eq $dom) {
1820: %{$returnhash{$tryserver}}=();
1821: foreach (
1822: split(/\&/,&reply('dcmaildump:'.$dom.':'.
1823: &escape($startdate).':'.&escape($enddate).':'.
1824: &escape($senders), ,$tryserver))) {
1825: my($key,$value) = split(/\=/,$_);
1826: if (($key) && ($value)) {
1827: $returnhash{$tryserver}{$key} = $value;
1828: }
1829: }
1830: }
1831: }
1832: return %returnhash;
1833: }
1834:
1.149 www 1835: # ----------------------------------------------------------- Check out an item
1836:
1.504 albertel 1837: sub get_first_access {
1838: my ($type,$argsymb)=@_;
1839: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1840: if ($argsymb) { $symb=$argsymb; }
1841: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 1842: if ($type eq 'map') {
1843: $res=&symbread($map);
1844: } else {
1845: $res=$symb;
1846: }
1847: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
1848: return $times{"$courseid\0$res"};
1.504 albertel 1849: }
1850:
1851: sub set_first_access {
1852: my ($type)=@_;
1853: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1854: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 1855: if ($type eq 'map') {
1856: $res=&symbread($map);
1857: } else {
1858: $res=$symb;
1859: }
1860: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 1861: if (!$firstaccess) {
1.588 albertel 1862: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 1863: }
1864: return 'already_set';
1.504 albertel 1865: }
1866:
1.149 www 1867: sub checkout {
1868: my ($symb,$tuname,$tudom,$tcrsid)=@_;
1869: my $now=time;
1870: my $lonhost=$perlvar{'lonHostID'};
1871: my $infostr=&escape(
1.234 www 1872: 'CHECKOUTTOKEN&'.
1.149 www 1873: $tuname.'&'.
1874: $tudom.'&'.
1875: $tcrsid.'&'.
1876: $symb.'&'.
1877: $now.'&'.$ENV{'REMOTE_ADDR'});
1878: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 1879: if ($token=~/^error\:/) {
1880: &logthis("<font color=blue>WARNING: ".
1881: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
1882: "</font>");
1883: return '';
1884: }
1885:
1.149 www 1886: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
1887: $token=~tr/a-z/A-Z/;
1888:
1.153 www 1889: my %infohash=('resource.0.outtoken' => $token,
1890: 'resource.0.checkouttime' => $now,
1891: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 1892:
1893: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
1894: return '';
1.151 www 1895: } else {
1896: &logthis("<font color=blue>WARNING: ".
1897: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
1898: "</font>");
1.149 www 1899: }
1900:
1901: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
1902: &escape('Checkout '.$infostr.' - '.
1903: $token)) ne 'ok') {
1904: return '';
1.151 www 1905: } else {
1906: &logthis("<font color=blue>WARNING: ".
1907: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
1908: "</font>");
1.149 www 1909: }
1.151 www 1910: return $token;
1.149 www 1911: }
1912:
1913: # ------------------------------------------------------------ Check in an item
1914:
1915: sub checkin {
1916: my $token=shift;
1.150 www 1917: my $now=time;
1918: my ($ta,$tb,$lonhost)=split(/\*/,$token);
1919: $lonhost=~tr/A-Z/a-z/;
1.595 albertel 1920: my $dtoken=$ta.'_'.$hostname{$lonhost}.'_'.$tb;
1.150 www 1921: $dtoken=~s/\W/\_/g;
1.234 www 1922: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 1923: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
1924:
1.154 www 1925: unless (($tuname) && ($tudom)) {
1926: &logthis('Check in '.$token.' ('.$dtoken.') failed');
1927: return '';
1928: }
1929:
1930: unless (&allowed('mgr',$tcrsid)) {
1931: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 1932: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 1933: return '';
1934: }
1935:
1.153 www 1936: my %infohash=('resource.0.intoken' => $token,
1937: 'resource.0.checkintime' => $now,
1938: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 1939:
1940: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
1941: return '';
1942: }
1943:
1944: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
1945: &escape('Checkin - '.$token)) ne 'ok') {
1946: return '';
1947: }
1948:
1949: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 1950: }
1951:
1952: # --------------------------------------------- Set Expire Date for Spreadsheet
1953:
1954: sub expirespread {
1955: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 1956: my $cid=$env{'request.course.id'};
1.110 www 1957: if ($cid) {
1958: my $now=time;
1959: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 1960: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
1961: $env{'course.'.$cid.'.num'}.
1.110 www 1962: ':nohist_expirationdates:'.
1963: &escape($key).'='.$now,
1.620 albertel 1964: $env{'course.'.$cid.'.home'})
1.110 www 1965: }
1966: return 'ok';
1.14 www 1967: }
1968:
1.109 www 1969: # ----------------------------------------------------- Devalidate Spreadsheets
1970:
1971: sub devalidate {
1.325 www 1972: my ($symb,$uname,$udom)=@_;
1.620 albertel 1973: my $cid=$env{'request.course.id'};
1.109 www 1974: if ($cid) {
1.391 matthew 1975: # delete the stored spreadsheets for
1976: # - the student level sheet of this user in course's homespace
1977: # - the assessment level sheet for this resource
1978: # for this user in user's homespace
1.553 albertel 1979: # - current conditional state info
1.325 www 1980: my $key=$uname.':'.$udom.':';
1.109 www 1981: my $status=
1.299 matthew 1982: &del('nohist_calculatedsheets',
1.391 matthew 1983: [$key.'studentcalc:'],
1.620 albertel 1984: $env{'course.'.$cid.'.domain'},
1985: $env{'course.'.$cid.'.num'})
1.133 albertel 1986: .' '.
1987: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 1988: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 1989: unless ($status eq 'ok ok') {
1990: &logthis('Could not devalidate spreadsheet '.
1.325 www 1991: $uname.' at '.$udom.' for '.
1.109 www 1992: $symb.': '.$status);
1.133 albertel 1993: }
1.553 albertel 1994: &delenv('user.state.'.$cid);
1.109 www 1995: }
1996: }
1997:
1.265 albertel 1998: sub get_scalar {
1999: my ($string,$end) = @_;
2000: my $value;
2001: if ($$string =~ s/^([^&]*?)($end)/$2/) {
2002: $value = $1;
2003: } elsif ($$string =~ s/^([^&]*?)&//) {
2004: $value = $1;
2005: }
2006: return &unescape($value);
2007: }
2008:
2009: sub array2str {
2010: my (@array) = @_;
2011: my $result=&arrayref2str(\@array);
2012: $result=~s/^__ARRAY_REF__//;
2013: $result=~s/__END_ARRAY_REF__$//;
2014: return $result;
2015: }
2016:
1.204 albertel 2017: sub arrayref2str {
2018: my ($arrayref) = @_;
1.265 albertel 2019: my $result='__ARRAY_REF__';
1.204 albertel 2020: foreach my $elem (@$arrayref) {
1.265 albertel 2021: if(ref($elem) eq 'ARRAY') {
2022: $result.=&arrayref2str($elem).'&';
2023: } elsif(ref($elem) eq 'HASH') {
2024: $result.=&hashref2str($elem).'&';
2025: } elsif(ref($elem)) {
2026: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 2027: } else {
2028: $result.=&escape($elem).'&';
2029: }
2030: }
2031: $result=~s/\&$//;
1.265 albertel 2032: $result .= '__END_ARRAY_REF__';
1.204 albertel 2033: return $result;
2034: }
2035:
1.168 albertel 2036: sub hash2str {
1.204 albertel 2037: my (%hash) = @_;
2038: my $result=&hashref2str(\%hash);
1.265 albertel 2039: $result=~s/^__HASH_REF__//;
2040: $result=~s/__END_HASH_REF__$//;
1.204 albertel 2041: return $result;
2042: }
2043:
2044: sub hashref2str {
2045: my ($hashref)=@_;
1.265 albertel 2046: my $result='__HASH_REF__';
1.495 albertel 2047: foreach (sort(keys(%$hashref))) {
1.204 albertel 2048: if (ref($_) eq 'ARRAY') {
1.265 albertel 2049: $result.=&arrayref2str($_).'=';
1.204 albertel 2050: } elsif (ref($_) eq 'HASH') {
1.265 albertel 2051: $result.=&hashref2str($_).'=';
1.204 albertel 2052: } elsif (ref($_)) {
1.265 albertel 2053: $result.='=';
2054: #print("Got a ref of ".(ref($_))." skipping.");
1.204 albertel 2055: } else {
1.265 albertel 2056: if ($_) {$result.=&escape($_).'=';} else { last; }
1.204 albertel 2057: }
2058:
1.265 albertel 2059: if(ref($hashref->{$_}) eq 'ARRAY') {
2060: $result.=&arrayref2str($hashref->{$_}).'&';
2061: } elsif(ref($hashref->{$_}) eq 'HASH') {
2062: $result.=&hashref2str($hashref->{$_}).'&';
2063: } elsif(ref($hashref->{$_})) {
2064: $result.='&';
2065: #print("Got a ref of ".(ref($hashref->{$_}))." skipping.");
1.204 albertel 2066: } else {
1.265 albertel 2067: $result.=&escape($hashref->{$_}).'&';
1.204 albertel 2068: }
2069: }
1.168 albertel 2070: $result=~s/\&$//;
1.265 albertel 2071: $result .= '__END_HASH_REF__';
1.168 albertel 2072: return $result;
2073: }
2074:
2075: sub str2hash {
1.265 albertel 2076: my ($string)=@_;
2077: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
2078: return %$hash;
2079: }
2080:
2081: sub str2hashref {
1.168 albertel 2082: my ($string) = @_;
1.265 albertel 2083:
2084: my %hash;
2085:
2086: if($string !~ /^__HASH_REF__/) {
2087: if (! ($string eq '' || !defined($string))) {
2088: $hash{'error'}='Not hash reference';
2089: }
2090: return (\%hash, $string);
2091: }
2092:
2093: $string =~ s/^__HASH_REF__//;
2094:
2095: while($string !~ /^__END_HASH_REF__/) {
2096: #key
2097: my $key='';
2098: if($string =~ /^__HASH_REF__/) {
2099: ($key, $string)=&str2hashref($string);
2100: if(defined($key->{'error'})) {
2101: $hash{'error'}='Bad data';
2102: return (\%hash, $string);
2103: }
2104: } elsif($string =~ /^__ARRAY_REF__/) {
2105: ($key, $string)=&str2arrayref($string);
2106: if($key->[0] eq 'Array reference error') {
2107: $hash{'error'}='Bad data';
2108: return (\%hash, $string);
2109: }
2110: } else {
2111: $string =~ s/^(.*?)=//;
1.267 albertel 2112: $key=&unescape($1);
1.265 albertel 2113: }
2114: $string =~ s/^=//;
2115:
2116: #value
2117: my $value='';
2118: if($string =~ /^__HASH_REF__/) {
2119: ($value, $string)=&str2hashref($string);
2120: if(defined($value->{'error'})) {
2121: $hash{'error'}='Bad data';
2122: return (\%hash, $string);
2123: }
2124: } elsif($string =~ /^__ARRAY_REF__/) {
2125: ($value, $string)=&str2arrayref($string);
2126: if($value->[0] eq 'Array reference error') {
2127: $hash{'error'}='Bad data';
2128: return (\%hash, $string);
2129: }
2130: } else {
2131: $value=&get_scalar(\$string,'__END_HASH_REF__');
2132: }
2133: $string =~ s/^&//;
2134:
2135: $hash{$key}=$value;
1.204 albertel 2136: }
1.265 albertel 2137:
2138: $string =~ s/^__END_HASH_REF__//;
2139:
2140: return (\%hash, $string);
1.204 albertel 2141: }
2142:
2143: sub str2array {
1.265 albertel 2144: my ($string)=@_;
2145: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
2146: return @$array;
2147: }
2148:
2149: sub str2arrayref {
1.204 albertel 2150: my ($string) = @_;
1.265 albertel 2151: my @array;
2152:
2153: if($string !~ /^__ARRAY_REF__/) {
2154: if (! ($string eq '' || !defined($string))) {
2155: $array[0]='Array reference error';
2156: }
2157: return (\@array, $string);
2158: }
2159:
2160: $string =~ s/^__ARRAY_REF__//;
2161:
2162: while($string !~ /^__END_ARRAY_REF__/) {
2163: my $value='';
2164: if($string =~ /^__HASH_REF__/) {
2165: ($value, $string)=&str2hashref($string);
2166: if(defined($value->{'error'})) {
2167: $array[0] ='Array reference error';
2168: return (\@array, $string);
2169: }
2170: } elsif($string =~ /^__ARRAY_REF__/) {
2171: ($value, $string)=&str2arrayref($string);
2172: if($value->[0] eq 'Array reference error') {
2173: $array[0] ='Array reference error';
2174: return (\@array, $string);
2175: }
2176: } else {
2177: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
2178: }
2179: $string =~ s/^&//;
2180:
2181: push(@array, $value);
1.191 harris41 2182: }
1.265 albertel 2183:
2184: $string =~ s/^__END_ARRAY_REF__//;
2185:
2186: return (\@array, $string);
1.168 albertel 2187: }
2188:
1.167 albertel 2189: # -------------------------------------------------------------------Temp Store
2190:
1.168 albertel 2191: sub tmpreset {
2192: my ($symb,$namespace,$domain,$stuname) = @_;
2193: if (!$symb) {
2194: $symb=&symbread();
1.620 albertel 2195: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2196: }
2197: $symb=escape($symb);
2198:
1.620 albertel 2199: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 2200: $namespace=~s/\//\_/g;
2201: $namespace=~s/\W//g;
2202:
1.620 albertel 2203: if (!$domain) { $domain=$env{'user.domain'}; }
2204: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2205: if ($domain eq 'public' && $stuname eq 'public') {
2206: $stuname=$ENV{'REMOTE_ADDR'};
2207: }
1.168 albertel 2208: my $path=$perlvar{'lonDaemons'}.'/tmp';
2209: my %hash;
2210: if (tie(%hash,'GDBM_File',
2211: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2212: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2213: foreach my $key (keys %hash) {
1.180 albertel 2214: if ($key=~ /:$symb/) {
1.168 albertel 2215: delete($hash{$key});
2216: }
2217: }
2218: }
2219: }
2220:
1.167 albertel 2221: sub tmpstore {
1.168 albertel 2222: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2223:
2224: if (!$symb) {
2225: $symb=&symbread();
1.620 albertel 2226: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2227: }
2228: $symb=escape($symb);
2229:
2230: if (!$namespace) {
2231: # I don't think we would ever want to store this for a course.
2232: # it seems this will only be used if we don't have a course.
1.620 albertel 2233: #$namespace=$env{'request.course.id'};
1.168 albertel 2234: #if (!$namespace) {
1.620 albertel 2235: $namespace=$env{'request.state'};
1.168 albertel 2236: #}
2237: }
2238: $namespace=~s/\//\_/g;
2239: $namespace=~s/\W//g;
1.620 albertel 2240: if (!$domain) { $domain=$env{'user.domain'}; }
2241: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2242: if ($domain eq 'public' && $stuname eq 'public') {
2243: $stuname=$ENV{'REMOTE_ADDR'};
2244: }
1.168 albertel 2245: my $now=time;
2246: my %hash;
2247: my $path=$perlvar{'lonDaemons'}.'/tmp';
2248: if (tie(%hash,'GDBM_File',
2249: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2250: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2251: $hash{"version:$symb"}++;
2252: my $version=$hash{"version:$symb"};
2253: my $allkeys='';
2254: foreach my $key (keys(%$storehash)) {
2255: $allkeys.=$key.':';
1.591 albertel 2256: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 2257: }
2258: $hash{"$version:$symb:timestamp"}=$now;
2259: $allkeys.='timestamp';
2260: $hash{"$version:keys:$symb"}=$allkeys;
2261: if (untie(%hash)) {
2262: return 'ok';
2263: } else {
2264: return "error:$!";
2265: }
2266: } else {
2267: return "error:$!";
2268: }
2269: }
1.167 albertel 2270:
1.168 albertel 2271: # -----------------------------------------------------------------Temp Restore
1.167 albertel 2272:
1.168 albertel 2273: sub tmprestore {
2274: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 2275:
1.168 albertel 2276: if (!$symb) {
2277: $symb=&symbread();
1.620 albertel 2278: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2279: }
2280: $symb=escape($symb);
2281:
1.620 albertel 2282: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 2283:
1.620 albertel 2284: if (!$domain) { $domain=$env{'user.domain'}; }
2285: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2286: if ($domain eq 'public' && $stuname eq 'public') {
2287: $stuname=$ENV{'REMOTE_ADDR'};
2288: }
1.168 albertel 2289: my %returnhash;
2290: $namespace=~s/\//\_/g;
2291: $namespace=~s/\W//g;
2292: my %hash;
2293: my $path=$perlvar{'lonDaemons'}.'/tmp';
2294: if (tie(%hash,'GDBM_File',
2295: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2296: &GDBM_READER(),0640)) {
1.168 albertel 2297: my $version=$hash{"version:$symb"};
2298: $returnhash{'version'}=$version;
2299: my $scope;
2300: for ($scope=1;$scope<=$version;$scope++) {
2301: my $vkeys=$hash{"$scope:keys:$symb"};
2302: my @keys=split(/:/,$vkeys);
2303: my $key;
2304: $returnhash{"$scope:keys"}=$vkeys;
2305: foreach $key (@keys) {
1.591 albertel 2306: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
2307: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 2308: }
2309: }
1.168 albertel 2310: if (!(untie(%hash))) {
2311: return "error:$!";
2312: }
2313: } else {
2314: return "error:$!";
2315: }
2316: return %returnhash;
1.167 albertel 2317: }
2318:
1.9 www 2319: # ----------------------------------------------------------------------- Store
2320:
2321: sub store {
1.124 www 2322: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2323: my $home='';
2324:
1.168 albertel 2325: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2326:
1.213 www 2327: $symb=&symbclean($symb);
1.122 albertel 2328: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2329:
1.620 albertel 2330: if (!$domain) { $domain=$env{'user.domain'}; }
2331: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2332:
2333: &devalidate($symb,$stuname,$domain);
1.109 www 2334:
2335: $symb=escape($symb);
1.187 www 2336: if (!$namespace) {
1.620 albertel 2337: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2338: return '';
2339: }
2340: }
1.620 albertel 2341: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2342:
2343: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2344: $$storehash{'host'}=$perlvar{'lonHostID'};
2345:
1.12 www 2346: my $namevalue='';
1.191 harris41 2347: foreach (keys %$storehash) {
1.591 albertel 2348: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2349: }
1.12 www 2350: $namevalue=~s/\&$//;
1.187 www 2351: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 2352: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 2353: }
2354:
1.47 www 2355: # -------------------------------------------------------------- Critical Store
2356:
2357: sub cstore {
1.124 www 2358: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2359: my $home='';
2360:
1.168 albertel 2361: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2362:
1.213 www 2363: $symb=&symbclean($symb);
1.122 albertel 2364: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2365:
1.620 albertel 2366: if (!$domain) { $domain=$env{'user.domain'}; }
2367: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2368:
2369: &devalidate($symb,$stuname,$domain);
1.109 www 2370:
2371: $symb=escape($symb);
1.187 www 2372: if (!$namespace) {
1.620 albertel 2373: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2374: return '';
2375: }
2376: }
1.620 albertel 2377: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2378:
2379: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2380: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 2381:
1.47 www 2382: my $namevalue='';
1.191 harris41 2383: foreach (keys %$storehash) {
1.591 albertel 2384: $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2385: }
1.47 www 2386: $namevalue=~s/\&$//;
1.187 www 2387: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 2388: return critical
2389: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 2390: }
2391:
1.9 www 2392: # --------------------------------------------------------------------- Restore
2393:
2394: sub restore {
1.124 www 2395: my ($symb,$namespace,$domain,$stuname) = @_;
2396: my $home='';
2397:
1.168 albertel 2398: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2399:
1.122 albertel 2400: if (!$symb) {
2401: unless ($symb=escape(&symbread())) { return ''; }
2402: } else {
1.213 www 2403: $symb=&escape(&symbclean($symb));
1.122 albertel 2404: }
1.188 www 2405: if (!$namespace) {
1.620 albertel 2406: unless ($namespace=$env{'request.course.id'}) {
1.188 www 2407: return '';
2408: }
2409: }
1.620 albertel 2410: if (!$domain) { $domain=$env{'user.domain'}; }
2411: if (!$stuname) { $stuname=$env{'user.name'}; }
2412: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 2413: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
2414:
1.12 www 2415: my %returnhash=();
1.191 harris41 2416: foreach (split(/\&/,$answer)) {
1.12 www 2417: my ($name,$value)=split(/\=/,$_);
1.591 albertel 2418: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 2419: }
1.75 www 2420: my $version;
2421: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.191 harris41 2422: foreach (split(/\:/,$returnhash{$version.':keys'})) {
1.75 www 2423: $returnhash{$_}=$returnhash{$version.':'.$_};
1.191 harris41 2424: }
1.75 www 2425: }
1.13 www 2426: return %returnhash;
1.34 www 2427: }
2428:
2429: # ---------------------------------------------------------- Course Description
2430:
2431: sub coursedescription {
2432: my $courseid=shift;
2433: $courseid=~s/^\///;
1.49 www 2434: $courseid=~s/\_/\//g;
1.34 www 2435: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 2436: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 2437: my $normalid=$cdomain.'_'.$cnum;
2438: # need to always cache even if we get errors otherwise we keep
2439: # trying and trying and trying to get the course description.
2440: my %envhash=();
2441: my %returnhash=();
2442: $envhash{'course.'.$normalid.'.last_cache'}=time;
1.34 www 2443: if ($chome ne 'no_host') {
1.302 albertel 2444: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 2445: if (!exists($returnhash{'con_lost'})) {
2446: $returnhash{'home'}= $chome;
2447: $returnhash{'domain'} = $cdomain;
2448: $returnhash{'num'} = $cnum;
1.130 albertel 2449: while (my ($name,$value) = each %returnhash) {
1.53 www 2450: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 2451: }
1.270 www 2452: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 2453: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 2454: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 2455: $envhash{'course.'.$normalid.'.home'}=$chome;
2456: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
2457: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 2458: }
2459: }
1.302 albertel 2460: &appenv(%envhash);
2461: return %returnhash;
1.461 www 2462: }
2463:
2464: # -------------------------------------------------See if a user is privileged
2465:
2466: sub privileged {
2467: my ($username,$domain)=@_;
2468: my $rolesdump=&reply("dump:$domain:$username:roles",
2469: &homeserver($username,$domain));
2470: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
2471: my $now=time;
2472: if ($rolesdump ne '') {
2473: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2474: if ($_!~/^rolesdef_/) {
1.461 www 2475: my ($area,$role)=split(/=/,$_);
2476: $area=~s/\_\w\w$//;
2477: my ($trole,$tend,$tstart)=split(/_/,$role);
2478: if (($trole eq 'dc') || ($trole eq 'su')) {
2479: my $active=1;
2480: if ($tend) {
2481: if ($tend<$now) { $active=0; }
2482: }
2483: if ($tstart) {
2484: if ($tstart>$now) { $active=0; }
2485: }
2486: if ($active) { return 1; }
2487: }
2488: }
2489: }
2490: }
2491: return 0;
1.9 www 2492: }
1.1 albertel 2493:
1.103 harris41 2494: # -------------------------------------------------------- Get user privileges
1.11 www 2495:
2496: sub rolesinit {
2497: my ($domain,$username,$authhost)=@_;
2498: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 2499: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 2500: my %allroles=();
2501: my $now=time;
1.21 www 2502: my $userroles="user.login.time=$now\n";
1.11 www 2503:
2504: if ($rolesdump ne '') {
1.191 harris41 2505: foreach (split(/&/,$rolesdump)) {
1.586 albertel 2506: if ($_!~/^rolesdef_/) {
1.11 www 2507: my ($area,$role)=split(/=/,$_);
1.587 albertel 2508: $area=~s/\_\w\w$//;
2509:
2510: my ($trole,$tend,$tstart);
2511: if ($role=~/^cr/) {
1.655 albertel 2512: if ($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|) {
2513: ($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
2514: ($tend,$tstart)=split('_',$trest);
2515: } else {
2516: $trole=$role;
2517: }
1.587 albertel 2518: } else {
2519: ($trole,$tend,$tstart)=split(/_/,$role);
2520: }
1.576 albertel 2521: $userroles.=&set_arearole($trole,$area,$tstart,$tend,$domain,$username);
1.567 raeburn 2522: if (($tend!=0) && ($tend<$now)) { $trole=''; }
2523: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 2524: if (($area ne '') && ($trole ne '')) {
1.347 albertel 2525: my $spec=$trole.'.'.$area;
2526: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
2527: if ($trole =~ /^cr\//) {
1.567 raeburn 2528: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.347 albertel 2529: } else {
1.567 raeburn 2530: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 2531: }
1.12 www 2532: }
2533: }
1.191 harris41 2534: }
1.567 raeburn 2535: my ($author,$adv) = &set_userprivs(\$userroles,\%allroles);
1.128 www 2536: $userroles.='user.adv='.$adv."\n".
2537: 'user.author='.$author."\n";
1.620 albertel 2538: $env{'user.adv'}=$adv;
1.11 www 2539: }
2540: return $userroles;
2541: }
2542:
1.567 raeburn 2543: sub set_arearole {
2544: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
2545: # log the associated role with the area
2546: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
2547: return 'user.role.'.$trole.'.'.$area.'='.$tstart.'.'.$tend."\n";
2548: }
2549:
2550: sub custom_roleprivs {
2551: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
2552: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
2553: my $homsvr=homeserver($rauthor,$rdomain);
2554: if ($hostname{$homsvr} ne '') {
2555: my ($rdummy,$roledef)=
2556: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
2557: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
2558: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
2559: if (defined($syspriv)) {
2560: $$allroles{'cm./'}.=':'.$syspriv;
2561: $$allroles{$spec.'./'}.=':'.$syspriv;
2562: }
2563: if ($tdomain ne '') {
2564: if (defined($dompriv)) {
2565: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
2566: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
2567: }
2568: if (($trest ne '') && (defined($coursepriv))) {
2569: $$allroles{'cm.'.$area}.=':'.$coursepriv;
2570: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
2571: }
2572: }
2573: }
2574: }
2575: }
2576:
2577:
2578: sub standard_roleprivs {
2579: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
2580: if (defined($pr{$trole.':s'})) {
2581: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
2582: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
2583: }
2584: if ($tdomain ne '') {
2585: if (defined($pr{$trole.':d'})) {
2586: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2587: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
2588: }
2589: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
2590: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
2591: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
2592: }
2593: }
2594: }
2595:
2596: sub set_userprivs {
2597: my ($userroles,$allroles) = @_;
2598: my $author=0;
2599: my $adv=0;
2600: foreach (keys %{$allroles}) {
2601: my %thesepriv=();
2602: if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
2603: foreach (split(/:/,$$allroles{$_})) {
2604: if ($_ ne '') {
2605: my ($privilege,$restrictions)=split(/&/,$_);
2606: if ($restrictions eq '') {
2607: $thesepriv{$privilege}='F';
2608: } elsif ($thesepriv{$privilege} ne 'F') {
2609: $thesepriv{$privilege}.=$restrictions;
2610: }
2611: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
2612: }
2613: }
2614: my $thesestr='';
2615: foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; }
2616: $$userroles.='user.priv.'.$_.'='.$thesestr."\n";
2617: }
2618: return ($author,$adv);
2619: }
2620:
1.12 www 2621: # --------------------------------------------------------------- get interface
2622:
2623: sub get {
1.131 albertel 2624: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 2625: my $items='';
1.191 harris41 2626: foreach (@$storearr) {
1.12 www 2627: $items.=escape($_).'&';
1.191 harris41 2628: }
1.12 www 2629: $items=~s/\&$//;
1.620 albertel 2630: if (!$udomain) { $udomain=$env{'user.domain'}; }
2631: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 2632: my $uhome=&homeserver($uname,$udomain);
2633:
1.133 albertel 2634: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2635: my @pairs=split(/\&/,$rep);
1.273 albertel 2636: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
2637: return @pairs;
2638: }
1.15 www 2639: my %returnhash=();
1.42 www 2640: my $i=0;
1.191 harris41 2641: foreach (@$storearr) {
1.557 albertel 2642: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 2643: $i++;
1.191 harris41 2644: }
1.15 www 2645: return %returnhash;
1.27 www 2646: }
2647:
2648: # --------------------------------------------------------------- del interface
2649:
2650: sub del {
1.133 albertel 2651: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 2652: my $items='';
1.191 harris41 2653: foreach (@$storearr) {
1.27 www 2654: $items.=escape($_).'&';
1.191 harris41 2655: }
1.27 www 2656: $items=~s/\&$//;
1.620 albertel 2657: if (!$udomain) { $udomain=$env{'user.domain'}; }
2658: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 2659: my $uhome=&homeserver($uname,$udomain);
2660:
2661: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 2662: }
2663:
2664: # -------------------------------------------------------------- dump interface
2665:
2666: sub dump {
1.193 www 2667: my ($namespace,$udomain,$uname,$regexp)=@_;
1.620 albertel 2668: if (!$udomain) { $udomain=$env{'user.domain'}; }
2669: if (!$uname) { $uname=$env{'user.name'}; }
1.129 albertel 2670: my $uhome=&homeserver($uname,$udomain);
1.193 www 2671: if ($regexp) {
2672: $regexp=&escape($regexp);
2673: } else {
2674: $regexp='.';
2675: }
2676: my $rep=reply("dump:$udomain:$uname:$namespace:$regexp",$uhome);
1.12 www 2677: my @pairs=split(/\&/,$rep);
2678: my %returnhash=();
1.191 harris41 2679: foreach (@pairs) {
1.12 www 2680: my ($key,$value)=split(/=/,$_);
1.557 albertel 2681: $returnhash{unescape($key)}=&thaw_unescape($value);
1.318 matthew 2682: }
2683: return %returnhash;
1.407 www 2684: }
2685:
2686: # -------------------------------------------------------------- keys interface
2687:
2688: sub getkeys {
2689: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 2690: if (!$udomain) { $udomain=$env{'user.domain'}; }
2691: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 2692: my $uhome=&homeserver($uname,$udomain);
2693: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
2694: my @keyarray=();
2695: foreach (split(/\&/,$rep)) {
2696: push (@keyarray,&unescape($_));
2697: }
2698: return @keyarray;
1.318 matthew 2699: }
2700:
1.319 matthew 2701: # --------------------------------------------------------------- currentdump
2702: sub currentdump {
1.328 matthew 2703: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 2704: $courseid = $env{'request.course.id'} if (! defined($courseid));
2705: $sdom = $env{'user.domain'} if (! defined($sdom));
2706: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 2707: my $uhome = &homeserver($sname,$sdom);
2708: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 2709: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 2710: #
1.318 matthew 2711: my %returnhash=();
1.319 matthew 2712: #
2713: if ($rep eq "unknown_cmd") {
2714: # an old lond will not know currentdump
2715: # Do a dump and make it look like a currentdump
1.326 matthew 2716: my @tmp = &dump($courseid,$sdom,$sname,'.');
1.319 matthew 2717: return if ($tmp[0] =~ /^(error:|no_such_host)/);
2718: my %hash = @tmp;
2719: @tmp=();
1.424 matthew 2720: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 2721: } else {
2722: my @pairs=split(/\&/,$rep);
2723: foreach (@pairs) {
2724: my ($key,$value)=split(/=/,$_);
2725: my ($symb,$param) = split(/:/,$key);
2726: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 2727: &thaw_unescape($value);
1.319 matthew 2728: }
1.191 harris41 2729: }
1.12 www 2730: return %returnhash;
1.424 matthew 2731: }
2732:
2733: sub convert_dump_to_currentdump{
2734: my %hash = %{shift()};
2735: my %returnhash;
2736: # Code ripped from lond, essentially. The only difference
2737: # here is the unescaping done by lonnet::dump(). Conceivably
2738: # we might run in to problems with parameter names =~ /^v\./
2739: while (my ($key,$value) = each(%hash)) {
2740: my ($v,$symb,$param) = split(/:/,$key);
2741: next if ($v eq 'version' || $symb eq 'keys');
2742: next if (exists($returnhash{$symb}) &&
2743: exists($returnhash{$symb}->{$param}) &&
2744: $returnhash{$symb}->{'v.'.$param} > $v);
2745: $returnhash{$symb}->{$param}=$value;
2746: $returnhash{$symb}->{'v.'.$param}=$v;
2747: }
2748: #
2749: # Remove all of the keys in the hashes which keep track of
2750: # the version of the parameter.
2751: while (my ($symb,$param_hash) = each(%returnhash)) {
2752: # use a foreach because we are going to delete from the hash.
2753: foreach my $key (keys(%$param_hash)) {
2754: delete($param_hash->{$key}) if ($key =~ /^v\./);
2755: }
2756: }
2757: return \%returnhash;
1.12 www 2758: }
2759:
1.627 albertel 2760: # ------------------------------------------------------ critical inc interface
2761:
2762: sub cinc {
2763: return &inc(@_,'critical');
2764: }
2765:
1.449 matthew 2766: # --------------------------------------------------------------- inc interface
2767:
2768: sub inc {
1.627 albertel 2769: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 2770: if (!$udomain) { $udomain=$env{'user.domain'}; }
2771: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 2772: my $uhome=&homeserver($uname,$udomain);
2773: my $items='';
2774: if (! ref($store)) {
2775: # got a single value, so use that instead
2776: $items = &escape($store).'=&';
2777: } elsif (ref($store) eq 'SCALAR') {
2778: $items = &escape($$store).'=&';
2779: } elsif (ref($store) eq 'ARRAY') {
2780: $items = join('=&',map {&escape($_);} @{$store});
2781: } elsif (ref($store) eq 'HASH') {
2782: while (my($key,$value) = each(%{$store})) {
2783: $items.= &escape($key).'='.&escape($value).'&';
2784: }
2785: }
2786: $items=~s/\&$//;
1.627 albertel 2787: if ($critical) {
2788: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
2789: } else {
2790: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
2791: }
1.449 matthew 2792: }
2793:
1.12 www 2794: # --------------------------------------------------------------- put interface
2795:
2796: sub put {
1.134 albertel 2797: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2798: if (!$udomain) { $udomain=$env{'user.domain'}; }
2799: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 2800: my $uhome=&homeserver($uname,$udomain);
1.12 www 2801: my $items='';
1.191 harris41 2802: foreach (keys %$storehash) {
1.557 albertel 2803: $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2804: }
1.12 www 2805: $items=~s/\&$//;
1.134 albertel 2806: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 2807: }
2808:
1.631 albertel 2809: # ------------------------------------------------------------ newput interface
2810:
2811: sub newput {
2812: my ($namespace,$storehash,$udomain,$uname)=@_;
2813: if (!$udomain) { $udomain=$env{'user.domain'}; }
2814: if (!$uname) { $uname=$env{'user.name'}; }
2815: my $uhome=&homeserver($uname,$udomain);
2816: my $items='';
2817: foreach my $key (keys(%$storehash)) {
2818: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
2819: }
2820: $items=~s/\&$//;
2821: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
2822: }
2823:
2824: # --------------------------------------------------------- putstore interface
2825:
1.524 raeburn 2826: sub putstore {
2827: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2828: if (!$udomain) { $udomain=$env{'user.domain'}; }
2829: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 2830: my $uhome=&homeserver($uname,$udomain);
2831: my $items='';
2832: my %allitems = ();
2833: foreach (keys %$storehash) {
2834: if ($_ =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
2835: my $key = $1.':keys:'.$2;
2836: $allitems{$key} .= $3.':';
2837: }
1.591 albertel 2838: $items.=$_.'='.&freeze_escape($$storehash{$_}).'&';
1.524 raeburn 2839: }
2840: foreach (keys %allitems) {
2841: $allitems{$_} =~ s/\:$//;
2842: $items.= $_.'='.$allitems{$_}.'&';
2843: }
2844: $items=~s/\&$//;
2845: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
2846: }
2847:
1.47 www 2848: # ------------------------------------------------------ critical put interface
2849:
2850: sub cput {
1.134 albertel 2851: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 2852: if (!$udomain) { $udomain=$env{'user.domain'}; }
2853: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 2854: my $uhome=&homeserver($uname,$udomain);
1.47 www 2855: my $items='';
1.191 harris41 2856: foreach (keys %$storehash) {
1.557 albertel 2857: $items.=escape($_).'='.&freeze_escape($$storehash{$_}).'&';
1.191 harris41 2858: }
1.47 www 2859: $items=~s/\&$//;
1.134 albertel 2860: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 2861: }
2862:
2863: # -------------------------------------------------------------- eget interface
2864:
2865: sub eget {
1.133 albertel 2866: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 2867: my $items='';
1.191 harris41 2868: foreach (@$storearr) {
1.12 www 2869: $items.=escape($_).'&';
1.191 harris41 2870: }
1.12 www 2871: $items=~s/\&$//;
1.620 albertel 2872: if (!$udomain) { $udomain=$env{'user.domain'}; }
2873: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 2874: my $uhome=&homeserver($uname,$udomain);
2875: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 2876: my @pairs=split(/\&/,$rep);
2877: my %returnhash=();
1.42 www 2878: my $i=0;
1.191 harris41 2879: foreach (@$storearr) {
1.557 albertel 2880: $returnhash{$_}=&thaw_unescape($pairs[$i]);
1.42 www 2881: $i++;
1.191 harris41 2882: }
1.12 www 2883: return %returnhash;
2884: }
2885:
1.341 www 2886: # ---------------------------------------------- Custom access rule evaluation
2887:
2888: sub customaccess {
2889: my ($priv,$uri)=@_;
1.620 albertel 2890: my ($urole,$urealm)=split(/\./,$env{'request.role'});
1.343 www 2891: $urealm=~s/^\W//;
2892: my ($udom,$ucrs,$usec)=split(/\//,$urealm);
1.341 www 2893: my $access=0;
2894: foreach (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.342 www 2895: my ($effect,$realm,$role)=split(/\:/,$_);
1.343 www 2896: if ($role) {
2897: if ($role ne $urole) { next; }
2898: }
2899: foreach (split(/\s*\,\s*/,$realm)) {
2900: my ($tdom,$tcrs,$tsec)=split(/\_/,$_);
2901: if ($tdom) {
2902: if ($tdom ne $udom) { next; }
2903: }
2904: if ($tcrs) {
2905: if ($tcrs ne $ucrs) { next; }
2906: }
2907: if ($tsec) {
2908: if ($tsec ne $usec) { next; }
2909: }
2910: $access=($effect eq 'allow');
2911: last;
1.342 www 2912: }
1.402 bowersj2 2913: if ($realm eq '' && $role eq '') {
2914: $access=($effect eq 'allow');
2915: }
1.341 www 2916: }
2917: return $access;
2918: }
2919:
1.103 harris41 2920: # ------------------------------------------------- Check for a user privilege
1.12 www 2921:
2922: sub allowed {
1.579 albertel 2923: my ($priv,$uri,$symb)=@_;
1.439 www 2924: $uri=&deversion($uri);
1.152 www 2925: my $orguri=$uri;
1.52 www 2926: $uri=&declutter($uri);
1.545 banghart 2927:
2928:
2929:
1.620 albertel 2930: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 2931: # Free bre access to adm and meta resources
1.529 albertel 2932: if (((($uri=~/^adm\//) && ($uri !~ m|/bulletinboard$|))
2933: || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
1.14 www 2934: return 'F';
1.159 www 2935: }
2936:
1.545 banghart 2937: # Free bre access to user's own portfolio contents
1.546 albertel 2938: my ($space,$domain,$name,$dir)=split('/',$uri);
1.647 raeburn 2939: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.620 albertel 2940: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir)) {
1.545 banghart 2941: return 'F';
2942: }
2943:
1.159 www 2944: # Free bre to public access
2945:
2946: if ($priv eq 'bre') {
1.238 www 2947: my $copyright=&metadata($uri,'copyright');
1.620 albertel 2948: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 2949: return 'F';
2950: }
1.238 www 2951: if ($copyright eq 'priv') {
2952: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 2953: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 2954: return '';
2955: }
2956: }
2957: if ($copyright eq 'domain') {
2958: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 2959: unless (($env{'user.domain'} eq $1) ||
2960: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 2961: return '';
2962: }
1.262 matthew 2963: }
1.620 albertel 2964: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 2965: # Library role, so allow browsing of resources in this domain.
2966: return 'F';
1.238 www 2967: }
1.341 www 2968: if ($copyright eq 'custom') {
2969: unless (&customaccess($priv,$uri)) { return ''; }
2970: }
1.14 www 2971: }
1.264 matthew 2972: # Domain coordinator is trying to create a course
1.620 albertel 2973: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 2974: # uri is the requested domain in this case.
2975: # comparison to 'request.role.domain' shows if the user has selected
2976: # a role of dc for the domain in question.
1.620 albertel 2977: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 2978: }
1.29 www 2979:
1.52 www 2980: my $thisallowed='';
2981: my $statecond=0;
2982: my $courseprivid='';
2983:
2984: # Course
2985:
1.620 albertel 2986: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 2987: $thisallowed.=$1;
2988: }
1.29 www 2989:
1.52 www 2990: # Domain
2991:
1.620 albertel 2992: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 2993: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 2994: $thisallowed.=$1;
2995: }
1.52 www 2996:
2997: # Course: uri itself is a course
1.66 www 2998: my $courseuri=$uri;
2999: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 3000: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 3001:
1.620 albertel 3002: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 3003: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3004: $thisallowed.=$1;
3005: }
1.29 www 3006:
1.314 www 3007: # URI is an uploaded document for this course
1.611 albertel 3008: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 3009: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.620 albertel 3010: my $refuri=$env{'httpref.'.$orguri};
1.492 albertel 3011: if ($refuri) {
3012: if ($refuri =~ m|^/adm/|) {
3013: $thisallowed='F';
3014: }
3015: }
1.314 www 3016: }
1.492 albertel 3017:
1.52 www 3018: # Full access at system, domain or course-wide level? Exit.
1.29 www 3019:
3020: if ($thisallowed=~/F/) {
3021: return 'F';
3022: }
3023:
1.52 www 3024: # If this is generating or modifying users, exit with special codes
1.29 www 3025:
1.643 www 3026: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
3027: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 3028: my ($audom,$auname)=split('/',$uri);
1.643 www 3029: # no author name given, so this just checks on the general right to make a co-author in this domain
3030: unless ($auname) { return $thisallowed; }
3031: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 3032: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
3033: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
3034: ($audom ne $env{'request.role.domain'}))) { return ''; }
3035: }
1.52 www 3036: return $thisallowed;
3037: }
3038: #
1.103 harris41 3039: # Gathered so far: system, domain and course wide privileges
1.52 www 3040: #
3041: # Course: See if uri or referer is an individual resource that is part of
3042: # the course
3043:
1.620 albertel 3044: if ($env{'request.course.id'}) {
1.232 www 3045:
1.620 albertel 3046: $courseprivid=$env{'request.course.id'};
3047: if ($env{'request.course.sec'}) {
3048: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 3049: }
3050: $courseprivid=~s/\_/\//;
3051: my $checkreferer=1;
1.232 www 3052: my ($match,$cond)=&is_on_map($uri);
3053: if ($match) {
3054: $statecond=$cond;
1.620 albertel 3055: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3056: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3057: $thisallowed.=$1;
3058: $checkreferer=0;
3059: }
1.29 www 3060: }
1.83 www 3061:
1.148 www 3062: if ($checkreferer) {
1.620 albertel 3063: my $refuri=$env{'httpref.'.$orguri};
1.148 www 3064: unless ($refuri) {
1.620 albertel 3065: foreach (keys %env) {
1.148 www 3066: if ($_=~/^httpref\..*\*/) {
3067: my $pattern=$_;
1.156 www 3068: $pattern=~s/^httpref\.\/res\///;
1.148 www 3069: $pattern=~s/\*/\[\^\/\]\+/g;
3070: $pattern=~s/\//\\\//g;
1.152 www 3071: if ($orguri=~/$pattern/) {
1.620 albertel 3072: $refuri=$env{$_};
1.148 www 3073: }
3074: }
1.191 harris41 3075: }
1.148 www 3076: }
1.232 www 3077:
1.148 www 3078: if ($refuri) {
1.152 www 3079: $refuri=&declutter($refuri);
1.232 www 3080: my ($match,$cond)=&is_on_map($refuri);
3081: if ($match) {
3082: my $refstatecond=$cond;
1.620 albertel 3083: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 3084: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3085: $thisallowed.=$1;
1.53 www 3086: $uri=$refuri;
3087: $statecond=$refstatecond;
1.52 www 3088: }
3089: }
1.148 www 3090: }
1.29 www 3091: }
1.52 www 3092: }
1.29 www 3093:
1.52 www 3094: #
1.103 harris41 3095: # Gathered now: all privileges that could apply, and condition number
1.52 www 3096: #
3097: #
3098: # Full or no access?
3099: #
1.29 www 3100:
1.52 www 3101: if ($thisallowed=~/F/) {
3102: return 'F';
3103: }
1.29 www 3104:
1.52 www 3105: unless ($thisallowed) {
3106: return '';
3107: }
1.29 www 3108:
1.52 www 3109: # Restrictions exist, deal with them
3110: #
3111: # C:according to course preferences
3112: # R:according to resource settings
3113: # L:unless locked
3114: # X:according to user session state
3115: #
3116:
3117: # Possibly locked functionality, check all courses
1.54 www 3118: # Locks might take effect only after 10 minutes cache expiration for other
3119: # courses, and 2 minutes for current course
1.52 www 3120:
3121: my $envkey;
3122: if ($thisallowed=~/L/) {
1.620 albertel 3123: foreach $envkey (keys %env) {
1.54 www 3124: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
3125: my $courseid=$2;
3126: my $roleid=$1.'.'.$2;
1.92 www 3127: $courseid=~s/^\///;
1.54 www 3128: my $expiretime=600;
1.620 albertel 3129: if ($env{'request.role'} eq $roleid) {
1.54 www 3130: $expiretime=120;
3131: }
3132: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
3133: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 3134: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.54 www 3135: &coursedescription($courseid);
3136: }
1.620 albertel 3137: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
3138: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
3139: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
3140: &log($env{'user.domain'},$env{'user.name'},
3141: $env{'user.home'},
1.57 www 3142: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 3143: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3144: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3145: return '';
3146: }
3147: }
1.620 albertel 3148: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
3149: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
3150: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
3151: &log($env{'user.domain'},$env{'user.name'},
3152: $env{'user.home'},
1.57 www 3153: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 3154: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 3155: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 3156: return '';
3157: }
3158: }
3159: }
1.29 www 3160: }
1.52 www 3161: }
3162:
3163: #
3164: # Rest of the restrictions depend on selected course
3165: #
3166:
1.620 albertel 3167: unless ($env{'request.course.id'}) {
1.52 www 3168: return '1';
3169: }
1.29 www 3170:
1.52 www 3171: #
3172: # Now user is definitely in a course
3173: #
1.53 www 3174:
3175:
3176: # Course preferences
3177:
3178: if ($thisallowed=~/C/) {
1.620 albertel 3179: my $rolecode=(split(/\./,$env{'request.role'}))[0];
3180: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
3181: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 3182: =~/\Q$rolecode\E/) {
1.620 albertel 3183: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.57 www 3184: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
1.620 albertel 3185: $env{'request.course.id'});
1.237 www 3186: return '';
3187: }
3188:
1.620 albertel 3189: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 3190: =~/\Q$unamedom\E/) {
1.620 albertel 3191: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.237 www 3192: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
1.620 albertel 3193: $env{'request.course.id'});
1.54 www 3194: return '';
3195: }
1.53 www 3196: }
3197:
3198: # Resource preferences
3199:
3200: if ($thisallowed=~/R/) {
1.620 albertel 3201: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 3202: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.620 albertel 3203: &log($env{'user.domain'},$env{'user.name'},$env{'user.host'},
1.57 www 3204: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
1.341 www 3205: return '';
1.54 www 3206: }
1.53 www 3207: }
1.30 www 3208:
1.246 www 3209: # Restricted by state or randomout?
1.30 www 3210:
1.52 www 3211: if ($thisallowed=~/X/) {
1.620 albertel 3212: if ($env{'acc.randomout'}) {
1.579 albertel 3213: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 3214: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 3215: return '';
3216: }
1.247 www 3217: }
3218: if (&condval($statecond)) {
1.52 www 3219: return '2';
3220: } else {
3221: return '';
3222: }
3223: }
1.30 www 3224:
1.52 www 3225: return 'F';
1.232 www 3226: }
3227:
3228: # --------------------------------------------------- Is a resource on the map?
3229:
3230: sub is_on_map {
1.659 ! albertel 3231: my $uri=&deversion(&declutter(shift));
1.232 www 3232: my @uriparts=split(/\//,$uri);
3233: my $filename=$uriparts[$#uriparts];
3234: my $pathname=$uri;
1.289 bowersj2 3235: $pathname=~s|/\Q$filename\E$||;
1.332 www 3236: $pathname=~s/^adm\/wrapper\///;
1.289 bowersj2 3237: #Trying to find the conditional for the file
1.620 albertel 3238: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 3239: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 3240: if ($match) {
1.289 bowersj2 3241: return (1,$1);
3242: } else {
1.434 www 3243: return (0,0);
1.289 bowersj2 3244: }
1.12 www 3245: }
3246:
1.427 www 3247: # --------------------------------------------------------- Get symb from alias
3248:
3249: sub get_symb_from_alias {
3250: my $symb=shift;
3251: my ($map,$resid,$url)=&decode_symb($symb);
3252: # Already is a symb
3253: if ($url) { return $symb; }
3254: # Must be an alias
3255: my $aliassymb='';
3256: my %bighash;
1.620 albertel 3257: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 3258: &GDBM_READER(),0640)) {
3259: my $rid=$bighash{'mapalias_'.$symb};
3260: if ($rid) {
3261: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 3262: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
3263: $resid,$bighash{'src_'.$rid});
1.427 www 3264: }
3265: untie %bighash;
3266: }
3267: return $aliassymb;
3268: }
3269:
1.12 www 3270: # ----------------------------------------------------------------- Define Role
3271:
3272: sub definerole {
3273: if (allowed('mcr','/')) {
3274: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.392 www 3275: foreach (split(':',$sysrole)) {
1.21 www 3276: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3277: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
3278: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
3279: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3280: return "refused:s:$crole&$cqual";
3281: }
3282: }
1.191 harris41 3283: }
1.392 www 3284: foreach (split(':',$domrole)) {
1.21 www 3285: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3286: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
3287: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
3288: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 3289: return "refused:d:$crole&$cqual";
3290: }
3291: }
1.191 harris41 3292: }
1.392 www 3293: foreach (split(':',$courole)) {
1.21 www 3294: my ($crole,$cqual)=split(/\&/,$_);
1.479 albertel 3295: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
3296: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
3297: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 3298: return "refused:c:$crole&$cqual";
3299: }
3300: }
1.191 harris41 3301: }
1.620 albertel 3302: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
3303: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 3304: "rolesdef_$rolename=".
3305: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 3306: return reply($command,$env{'user.home'});
1.12 www 3307: } else {
3308: return 'refused';
3309: }
1.105 harris41 3310: }
3311:
3312: # ---------------- Make a metadata query against the network of library servers
3313:
3314: sub metadata_query {
1.244 matthew 3315: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 3316: my %rhash;
1.244 matthew 3317: my @server_list = (defined($server_array) ? @$server_array
3318: : keys(%libserv) );
3319: for my $server (@server_list) {
1.118 harris41 3320: unless ($custom or $customshow) {
3321: my $reply=&reply("querysend:".&escape($query),$server);
3322: $rhash{$server}=$reply;
3323: }
3324: else {
3325: my $reply=&reply("querysend:".&escape($query).':'.
3326: &escape($custom).':'.&escape($customshow),
3327: $server);
3328: $rhash{$server}=$reply;
3329: }
1.112 harris41 3330: }
1.118 harris41 3331: return \%rhash;
1.240 www 3332: }
3333:
3334: # ----------------------------------------- Send log queries and wait for reply
3335:
3336: sub log_query {
3337: my ($uname,$udom,$query,%filters)=@_;
3338: my $uhome=&homeserver($uname,$udom);
3339: if ($uhome eq 'no_host') { return 'error: no_host'; }
3340: my $uhost=$hostname{$uhome};
1.241 www 3341: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys %filters));
1.240 www 3342: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
3343: $uhome);
1.479 albertel 3344: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 3345: return get_query_reply($queryid);
3346: }
3347:
1.508 raeburn 3348: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 3349:
3350: sub fetch_enrollment_query {
1.511 raeburn 3351: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 3352: my $homeserver;
1.547 raeburn 3353: my $maxtries = 1;
1.508 raeburn 3354: if ($context eq 'automated') {
3355: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 3356: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 3357: } else {
3358: $homeserver = &homeserver($cnum,$dom);
3359: }
1.506 raeburn 3360: my $host=$hostname{$homeserver};
3361: my $cmd = '';
3362: foreach (keys %{$affiliatesref}) {
1.508 raeburn 3363: $cmd .= $_.'='.join(",",@{$$affiliatesref{$_}}).'%%';
1.506 raeburn 3364: }
3365: $cmd =~ s/%%$//;
3366: $cmd = &escape($cmd);
3367: my $query = 'fetchenrollment';
1.620 albertel 3368: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 3369: unless ($queryid=~/^\Q$host\E\_/) {
3370: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
3371: return 'error: '.$queryid;
3372: }
1.506 raeburn 3373: my $reply = &get_query_reply($queryid);
1.547 raeburn 3374: my $tries = 1;
3375: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
3376: $reply = &get_query_reply($queryid);
3377: $tries ++;
3378: }
1.526 raeburn 3379: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 3380: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 3381: } else {
1.515 raeburn 3382: my @responses = split/:/,$reply;
3383: if ($homeserver eq $perlvar{'lonHostID'}) {
3384: foreach (@responses) {
3385: my ($key,$value) = split/=/,$_;
3386: $$replyref{$key} = $value;
3387: }
3388: } else {
1.506 raeburn 3389: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
3390: foreach (@responses) {
3391: my ($key,$value) = split/=/,$_;
3392: $$replyref{$key} = $value;
3393: if ($value > 0) {
3394: foreach (@{$$affiliatesref{$key}}) {
3395: my $filename = $dom.'_'.$key.'_'.$_.'_classlist.xml';
3396: my $destname = $pathname.'/'.$filename;
3397: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 3398: if ($xml_classlist =~ /^error/) {
3399: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
3400: } else {
1.506 raeburn 3401: if ( open(FILE,">$destname") ) {
3402: print FILE &unescape($xml_classlist);
3403: close(FILE);
1.526 raeburn 3404: } else {
3405: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 3406: }
3407: }
3408: }
3409: }
3410: }
3411: }
3412: return 'ok';
3413: }
3414: return 'error';
3415: }
3416:
1.242 www 3417: sub get_query_reply {
3418: my $queryid=shift;
1.240 www 3419: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
3420: my $reply='';
3421: for (1..100) {
3422: sleep 2;
3423: if (-e $replyfile.'.end') {
1.448 albertel 3424: if (open(my $fh,$replyfile)) {
1.240 www 3425: $reply.=<$fh>;
1.448 albertel 3426: close($fh);
1.240 www 3427: } else { return 'error: reply_file_error'; }
1.242 www 3428: return &unescape($reply);
3429: }
1.240 www 3430: }
1.242 www 3431: return 'timeout:'.$queryid;
1.240 www 3432: }
3433:
3434: sub courselog_query {
1.241 www 3435: #
3436: # possible filters:
3437: # url: url or symb
3438: # username
3439: # domain
3440: # action: view, submit, grade
3441: # start: timestamp
3442: # end: timestamp
3443: #
1.240 www 3444: my (%filters)=@_;
1.620 albertel 3445: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 3446: if ($filters{'url'}) {
3447: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
3448: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
3449: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
3450: }
1.620 albertel 3451: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
3452: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 3453: return &log_query($cname,$cdom,'courselog',%filters);
3454: }
3455:
3456: sub userlog_query {
3457: my ($uname,$udom,%filters)=@_;
3458: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 3459: }
3460:
1.506 raeburn 3461: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
3462:
3463: sub auto_run {
1.508 raeburn 3464: my ($cnum,$cdom) = @_;
3465: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 3466: my $response = &reply('autorun:'.$cdom,$homeserver);
1.506 raeburn 3467: return $response;
3468: }
3469:
3470: sub auto_get_sections {
1.508 raeburn 3471: my ($cnum,$cdom,$inst_coursecode) = @_;
3472: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 3473: my @secs = ();
1.511 raeburn 3474: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 3475: unless ($response eq 'refused') {
3476: @secs = split/:/,$response;
3477: }
3478: return @secs;
3479: }
3480:
3481: sub auto_new_course {
1.508 raeburn 3482: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
3483: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 3484: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 3485: return $response;
3486: }
3487:
3488: sub auto_validate_courseID {
1.508 raeburn 3489: my ($cnum,$cdom,$inst_course_id) = @_;
3490: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 3491: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 3492: return $response;
3493: }
3494:
3495: sub auto_create_password {
1.508 raeburn 3496: my ($cnum,$cdom,$authparam) = @_;
3497: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 3498: my $create_passwd = 0;
3499: my $authchk = '';
1.511 raeburn 3500: my $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
1.506 raeburn 3501: if ($response eq 'refused') {
3502: $authchk = 'refused';
3503: } else {
3504: ($authparam,$create_passwd,$authchk) = split/:/,$response;
3505: }
3506: return ($authparam,$create_passwd,$authchk);
3507: }
3508:
1.521 raeburn 3509: sub auto_instcode_format {
3510: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,$cat_order) = @_;
3511: my $courses = '';
3512: my $homeserver;
3513: if ($caller eq 'global') {
1.584 raeburn 3514: foreach my $tryserver (keys %libserv) {
3515: if ($hostdom{$tryserver} eq $codedom) {
3516: $homeserver = $tryserver;
3517: last;
3518: }
3519: }
1.620 albertel 3520: if (($env{'user.name'}) && ($env{'user.domain'} eq $codedom)) {
3521: $homeserver = &homeserver($env{'user.name'},$codedom);
1.584 raeburn 3522: }
1.521 raeburn 3523: } else {
3524: $homeserver = &homeserver($caller,$codedom);
3525: }
3526: foreach (keys %{$instcodes}) {
3527: $courses .= &escape($_).'='.&escape($$instcodes{$_}).'&';
3528: }
3529: chop($courses);
3530: my $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$homeserver);
3531: unless ($response =~ /(con_lost|error|no_such_host|refused)/) {
3532: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) = split/:/,$response;
3533: %{$codes} = &str2hash($codes_str);
3534: @{$codetitles} = &str2array($codetitles_str);
3535: %{$cat_titles} = &str2hash($cat_titles_str);
3536: %{$cat_order} = &str2hash($cat_order_str);
3537: return 'ok';
3538: }
3539: return $response;
3540: }
3541:
1.12 www 3542: # ------------------------------------------------------------------ Plain Text
3543:
3544: sub plaintext {
1.22 www 3545: my $short=shift;
1.414 www 3546: return &mt($prp{$short});
1.12 www 3547: }
3548:
3549: # ----------------------------------------------------------------- Assign Role
3550:
3551: sub assignrole {
1.357 www 3552: my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
1.21 www 3553: my $mrole;
3554: if ($role =~ /^cr\//) {
1.393 www 3555: my $cwosec=$url;
3556: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
3557: unless (&allowed('ccr',$cwosec)) {
1.104 www 3558: &logthis('Refused custom assignrole: '.
3559: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 3560: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 3561: return 'refused';
3562: }
1.21 www 3563: $mrole='cr';
3564: } else {
1.82 www 3565: my $cwosec=$url;
1.83 www 3566: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
1.373 www 3567: unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) {
1.104 www 3568: &logthis('Refused assignrole: '.
3569: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 3570: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 3571: return 'refused';
3572: }
1.21 www 3573: $mrole=$role;
3574: }
1.620 albertel 3575: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 3576: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 3577: if ($end) { $command.='_'.$end; }
1.21 www 3578: if ($start) {
3579: if ($end) {
1.81 www 3580: $command.='_'.$start;
1.21 www 3581: } else {
1.81 www 3582: $command.='_0_'.$start;
1.21 www 3583: }
3584: }
1.357 www 3585: # actually delete
3586: if ($deleteflag) {
1.373 www 3587: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 3588: # modify command to delete the role
1.620 albertel 3589: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 3590: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 3591: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 3592: # set start and finish to negative values for userrolelog
3593: $start=-1;
3594: $end=-1;
3595: }
3596: }
3597: # send command
1.349 www 3598: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 3599: # log new user role if status is ok
1.349 www 3600: if ($answer eq 'ok') {
3601: &userrolelog($mrole,$uname,$udom,$url,$start,$end);
3602: }
3603: return $answer;
1.169 harris41 3604: }
3605:
3606: # -------------------------------------------------- Modify user authentication
1.197 www 3607: # Overrides without validation
3608:
1.169 harris41 3609: sub modifyuserauth {
3610: my ($udom,$uname,$umode,$upass)=@_;
3611: my $uhome=&homeserver($uname,$udom);
1.197 www 3612: unless (&allowed('mau',$udom)) { return 'refused'; }
3613: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 3614: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
3615: ' in domain '.$env{'request.role.domain'});
1.169 harris41 3616: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
3617: &escape($upass),$uhome);
1.620 albertel 3618: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 3619: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
3620: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
3621: &log($udom,,$uname,$uhome,
1.620 albertel 3622: 'Authentication changed by '.$env{'user.domain'}.', '.
3623: $env{'user.name'}.', '.$umode.
1.197 www 3624: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 3625: unless ($reply eq 'ok') {
1.197 www 3626: &logthis('Authentication mode error: '.$reply);
1.169 harris41 3627: return 'error: '.$reply;
3628: }
1.170 harris41 3629: return 'ok';
1.80 www 3630: }
3631:
1.81 www 3632: # --------------------------------------------------------------- Modify a user
1.80 www 3633:
1.81 www 3634: sub modifyuser {
1.206 matthew 3635: my ($udom, $uname, $uid,
3636: $umode, $upass, $first,
3637: $middle, $last, $gene,
1.387 www 3638: $forceid, $desiredhome, $email)=@_;
1.198 www 3639: $udom=~s/\W//g;
3640: $uname=~s/\W//g;
1.81 www 3641: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 3642: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 3643: $last.', '.$gene.'(forceid: '.$forceid.')'.
3644: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
3645: ' desiredhome not specified').
1.620 albertel 3646: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
3647: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 3648: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 3649: # ----------------------------------------------------------------- Create User
1.406 albertel 3650: if (($uhome eq 'no_host') &&
3651: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 3652: my $unhome='';
1.209 matthew 3653: if (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) {
3654: $unhome = $desiredhome;
1.620 albertel 3655: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
3656: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 3657: } else { # load balancing routine for determining $unhome
1.80 www 3658: my $tryserver;
1.81 www 3659: my $loadm=10000000;
1.80 www 3660: foreach $tryserver (keys %libserv) {
3661: if ($hostdom{$tryserver} eq $udom) {
3662: my $answer=reply('load',$tryserver);
3663: if (($answer=~/\d+/) && ($answer<$loadm)) {
3664: $loadm=$answer;
3665: $unhome=$tryserver;
3666: }
3667: }
3668: }
3669: }
3670: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 3671: return 'error: unable to find a home server for '.$uname.
3672: ' in domain '.$udom;
1.80 www 3673: }
3674: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
3675: &escape($upass),$unhome);
3676: unless ($reply eq 'ok') {
3677: return 'error: '.$reply;
3678: }
1.230 stredwic 3679: $uhome=&homeserver($uname,$udom,'true');
1.80 www 3680: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 3681: return 'error: unable verify users home machine.';
1.80 www 3682: }
1.209 matthew 3683: } # End of creation of new user
1.80 www 3684: # ---------------------------------------------------------------------- Add ID
3685: if ($uid) {
3686: $uid=~tr/A-Z/a-z/;
3687: my %uidhash=&idrget($udom,$uname);
1.196 www 3688: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
3689: && (!$forceid)) {
1.80 www 3690: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 3691: return 'error: user id "'.$uid.'" does not match '.
3692: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 3693: }
3694: } else {
3695: &idput($udom,($uname => $uid));
3696: }
3697: }
3698: # -------------------------------------------------------------- Add names, etc
1.313 matthew 3699: my @tmp=&get('environment',
1.134 albertel 3700: ['firstname','middlename','lastname','generation'],
3701: $udom,$uname);
1.313 matthew 3702: my %names;
3703: if ($tmp[0] =~ m/^error:.*/) {
3704: %names=();
3705: } else {
3706: %names = @tmp;
3707: }
1.388 www 3708: #
3709: # Make sure to not trash student environment if instructor does not bother
3710: # to supply name and email information
3711: #
3712: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 3713: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 3714: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 3715: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 3716: if ($email) {
3717: $email=~s/[^\w\@\.\-\,]//gs;
3718: if ($email=~/\@/) { $names{'notification'} = $email;
3719: $names{'critnotification'} = $email;
3720: $names{'permanentemail'} = $email; }
3721: }
1.134 albertel 3722: my $reply = &put('environment', \%names, $udom,$uname);
3723: if ($reply ne 'ok') { return 'error: '.$reply; }
1.81 www 3724: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 3725: $umode.', '.$first.', '.$middle.', '.
3726: $last.', '.$gene.' by '.
1.620 albertel 3727: $env{'user.name'}.' at '.$env{'user.domain'});
1.134 albertel 3728: return 'ok';
1.80 www 3729: }
3730:
1.81 www 3731: # -------------------------------------------------------------- Modify student
1.80 www 3732:
1.81 www 3733: sub modifystudent {
3734: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.515 raeburn 3735: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid)=@_;
1.455 albertel 3736: if (!$cid) {
1.620 albertel 3737: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 3738: return 'not_in_class';
3739: }
1.80 www 3740: }
3741: # --------------------------------------------------------------- Make the user
1.81 www 3742: my $reply=&modifyuser
1.209 matthew 3743: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 3744: $desiredhome,$email);
1.80 www 3745: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 3746: # This will cause &modify_student_enrollment to get the uid from the
3747: # students environment
3748: $uid = undef if (!$forceid);
1.455 albertel 3749: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.515 raeburn 3750: $gene,$usec,$end,$start,$type,$locktype,$cid);
1.297 matthew 3751: return $reply;
3752: }
3753:
3754: sub modify_student_enrollment {
1.515 raeburn 3755: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid) = @_;
1.455 albertel 3756: my ($cdom,$cnum,$chome);
3757: if (!$cid) {
1.620 albertel 3758: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 3759: return 'not_in_class';
3760: }
1.620 albertel 3761: $cdom=$env{'course.'.$cid.'.domain'};
3762: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 3763: } else {
3764: ($cdom,$cnum)=split(/_/,$cid);
3765: }
1.620 albertel 3766: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 3767: if (!$chome) {
1.457 raeburn 3768: $chome=&homeserver($cnum,$cdom);
1.297 matthew 3769: }
1.455 albertel 3770: if (!$chome) { return 'unknown_course'; }
1.297 matthew 3771: # Make sure the user exists
1.81 www 3772: my $uhome=&homeserver($uname,$udom);
3773: if (($uhome eq '') || ($uhome eq 'no_host')) {
3774: return 'error: no such user';
3775: }
1.297 matthew 3776: # Get student data if we were not given enough information
3777: if (!defined($first) || $first eq '' ||
3778: !defined($last) || $last eq '' ||
3779: !defined($uid) || $uid eq '' ||
3780: !defined($middle) || $middle eq '' ||
3781: !defined($gene) || $gene eq '') {
1.294 matthew 3782: # They did not supply us with enough data to enroll the student, so
3783: # we need to pick up more information.
1.297 matthew 3784: my %tmp = &get('environment',
1.294 matthew 3785: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 3786: ,$udom,$uname);
3787:
1.455 albertel 3788: #foreach (keys(%tmp)) {
3789: # &logthis("key $_ = ".$tmp{$_});
3790: #}
1.294 matthew 3791: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
3792: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
3793: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 3794: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 3795: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
3796: }
1.556 albertel 3797: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 3798: my $reply=cput('classlist',
3799: {"$uname:$udom" =>
1.515 raeburn 3800: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 3801: $cdom,$cnum);
1.81 www 3802: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
3803: return 'error: '.$reply;
1.652 albertel 3804: } else {
3805: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 3806: }
1.297 matthew 3807: # Add student role to user
1.83 www 3808: my $uurl='/'.$cid;
1.81 www 3809: $uurl=~s/\_/\//g;
3810: if ($usec) {
3811: $uurl.='/'.$usec;
3812: }
3813: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 3814: }
3815:
1.556 albertel 3816: sub format_name {
3817: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
3818: my $name;
3819: if ($first ne 'lastname') {
3820: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
3821: } else {
3822: if ($lastname=~/\S/) {
3823: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
3824: $name=~s/\s+,/,/;
3825: } else {
3826: $name.= $firstname.' '.$middlename.' '.$generation;
3827: }
3828: }
3829: $name=~s/^\s+//;
3830: $name=~s/\s+$//;
3831: $name=~s/\s+/ /g;
3832: return $name;
3833: }
3834:
1.84 www 3835: # ------------------------------------------------- Write to course preferences
3836:
3837: sub writecoursepref {
3838: my ($courseid,%prefs)=@_;
3839: $courseid=~s/^\///;
3840: $courseid=~s/\_/\//g;
3841: my ($cdomain,$cnum)=split(/\//,$courseid);
3842: my $chome=homeserver($cnum,$cdomain);
3843: if (($chome eq '') || ($chome eq 'no_host')) {
3844: return 'error: no such course';
3845: }
3846: my $cstring='';
1.191 harris41 3847: foreach (keys %prefs) {
1.84 www 3848: $cstring.=escape($_).'='.escape($prefs{$_}).'&';
1.191 harris41 3849: }
1.84 www 3850: $cstring=~s/\&$//;
3851: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
3852: }
3853:
3854: # ---------------------------------------------------------- Make/modify course
3855:
3856: sub createcourse {
1.571 raeburn 3857: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner)=@_;
1.84 www 3858: $url=&declutter($url);
3859: my $cid='';
1.264 matthew 3860: unless (&allowed('ccc',$udom)) {
1.84 www 3861: return 'refused';
3862: }
3863: # ------------------------------------------------------------------- Create ID
3864: my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
3865: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
3866: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 3867: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 3868: unless (($uhome eq '') || ($uhome eq 'no_host')) {
3869: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
3870: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 3871: $uhome=&homeserver($uname,$udom,'true');
1.84 www 3872: unless (($uhome eq '') || ($uhome eq 'no_host')) {
3873: return 'error: unable to generate unique course-ID';
3874: }
3875: }
1.264 matthew 3876: # ------------------------------------------------ Check supplied server name
1.620 albertel 3877: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.264 matthew 3878: if (! exists($libserv{$course_server})) {
3879: return 'error:bad server name '.$course_server;
3880: }
1.84 www 3881: # ------------------------------------------------------------- Make the course
3882: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 3883: $course_server);
1.84 www 3884: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 3885: $uhome=&homeserver($uname,$udom,'true');
1.84 www 3886: if (($uhome eq '') || ($uhome eq 'no_host')) {
3887: return 'error: no such course';
3888: }
1.271 www 3889: # ----------------------------------------------------------------- Course made
1.516 raeburn 3890: # log existence
3891: &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
1.571 raeburn 3892: ':'.&escape($inst_code).':'.&escape($course_owner),$uhome);
1.358 www 3893: &flushcourselogs();
3894: # set toplevel url
1.271 www 3895: my $topurl=$url;
3896: unless ($nonstandard) {
3897: # ------------------------------------------ For standard courses, make top url
3898: my $mapurl=&clutter($url);
1.278 www 3899: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 3900: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 3901: <map>
3902: <resource id="1" type="start"></resource>
3903: <resource id="2" src="$mapurl"></resource>
3904: <resource id="3" type="finish"></resource>
3905: <link index="1" from="1" to="2"></link>
3906: <link index="2" from="2" to="3"></link>
3907: </map>
3908: ENDINITMAP
3909: $topurl=&declutter(
1.638 albertel 3910: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 3911: );
3912: }
3913: # ----------------------------------------------------------- Write preferences
1.84 www 3914: &writecoursepref($udom.'_'.$uname,
3915: ('description' => $description,
1.271 www 3916: 'url' => $topurl));
1.84 www 3917: return '/'.$udom.'/'.$uname;
3918: }
3919:
1.21 www 3920: # ---------------------------------------------------------- Assign Custom Role
3921:
3922: sub assigncustomrole {
1.357 www 3923: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
1.21 www 3924: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.357 www 3925: $end,$start,$deleteflag);
1.21 www 3926: }
3927:
3928: # ----------------------------------------------------------------- Revoke Role
3929:
3930: sub revokerole {
1.357 www 3931: my ($udom,$uname,$url,$role,$deleteflag)=@_;
1.21 www 3932: my $now=time;
1.357 www 3933: return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
1.21 www 3934: }
3935:
3936: # ---------------------------------------------------------- Revoke Custom Role
3937:
3938: sub revokecustomrole {
1.357 www 3939: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
1.21 www 3940: my $now=time;
1.357 www 3941: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
3942: $deleteflag);
1.17 www 3943: }
3944:
1.533 banghart 3945: # ------------------------------------------------------------ Disk usage
1.535 albertel 3946: sub diskusage {
1.533 banghart 3947: my ($udom,$uname,$directoryRoot)=@_;
3948: $directoryRoot =~ s/\/$//;
1.535 albertel 3949: my $listing=&reply('du:'.$directoryRoot,homeserver($uname,$udom));
1.514 albertel 3950: return $listing;
1.512 banghart 3951: }
3952:
1.566 banghart 3953: sub is_locked {
3954: my ($file_name, $domain, $user) = @_;
3955: my @check;
3956: my $is_locked;
3957: push @check, $file_name;
1.613 albertel 3958: my %locked = &get('file_permissions',\@check,
1.620 albertel 3959: $env{'user.domain'},$env{'user.name'});
1.615 albertel 3960: my ($tmp)=keys(%locked);
3961: if ($tmp=~/^error:/) { undef(%locked); }
1.613 albertel 3962:
1.566 banghart 3963: if (ref($locked{$file_name}) eq 'ARRAY') {
3964: $is_locked = 'true';
3965: } else {
3966: $is_locked = 'false';
3967: }
3968: }
3969:
1.559 banghart 3970: # ------------------------------------------------------------- Mark as Read Only
3971:
3972: sub mark_as_readonly {
3973: my ($domain,$user,$files,$what) = @_;
1.613 albertel 3974: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 3975: my ($tmp)=keys(%current_permissions);
3976: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 3977: foreach my $file (@{$files}) {
1.561 banghart 3978: push(@{$current_permissions{$file}},$what);
1.559 banghart 3979: }
1.613 albertel 3980: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 3981: return;
3982: }
3983:
1.572 banghart 3984: # ------------------------------------------------------------Save Selected Files
3985:
3986: sub save_selected_files {
3987: my ($user, $path, @files) = @_;
3988: my $filename = $user."savedfiles";
1.573 banghart 3989: my @other_files = &files_not_in_path($user, $path);
1.574 banghart 3990: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 3991: foreach my $file (@files) {
1.620 albertel 3992: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 3993: }
3994: foreach my $file (@other_files) {
1.574 banghart 3995: print (OUT $file."\n");
1.572 banghart 3996: }
1.574 banghart 3997: close (OUT);
1.572 banghart 3998: return 'ok';
3999: }
4000:
1.574 banghart 4001: sub clear_selected_files {
4002: my ($user) = @_;
4003: my $filename = $user."savedfiles";
4004: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
4005: print (OUT undef);
4006: close (OUT);
4007: return ("ok");
4008: }
4009:
1.572 banghart 4010: sub files_in_path {
4011: my ($user, $path) = @_;
4012: my $filename = $user."savedfiles";
4013: my %return_files;
1.574 banghart 4014: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 4015: while (my $line_in = <IN>) {
1.574 banghart 4016: chomp ($line_in);
4017: my @paths_and_file = split (m!/!, $line_in);
4018: my $file_part = pop (@paths_and_file);
4019: my $path_part = join ('/', @paths_and_file);
1.573 banghart 4020: $path_part.='/';
4021: my $path_and_file = $path_part.$file_part;
4022: if ($path_part eq $path) {
4023: $return_files{$file_part}= 'selected';
4024: }
4025: }
1.574 banghart 4026: close (IN);
4027: return (\%return_files);
1.572 banghart 4028: }
4029:
4030: # called in portfolio select mode, to show files selected NOT in current directory
4031: sub files_not_in_path {
4032: my ($user, $path) = @_;
4033: my $filename = $user."savedfiles";
4034: my @return_files;
4035: my $path_part;
1.574 banghart 4036: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.572 banghart 4037: while (<IN>) {
4038: #ok, I know it's clunky, but I want it to work
4039: my @paths_and_file = split m!/!, $_;
1.574 banghart 4040: my $file_part = pop (@paths_and_file);
4041: chomp ($file_part);
4042: my $path_part = join ('/', @paths_and_file);
1.572 banghart 4043: $path_part .= '/';
4044: my $path_and_file = $path_part.$file_part;
4045: if ($path_part ne $path) {
1.574 banghart 4046: push (@return_files, ($path_and_file));
1.572 banghart 4047: }
4048: }
1.574 banghart 4049: close (OUT);
4050: return (@return_files);
1.572 banghart 4051: }
4052:
1.561 banghart 4053: #--------------------------------------------------------------Get Marked as Read Only
4054:
1.629 banghart 4055:
1.561 banghart 4056: sub get_marked_as_readonly {
4057: my ($domain,$user,$what) = @_;
1.613 albertel 4058: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4059: my ($tmp)=keys(%current_permissions);
4060: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.563 banghart 4061: my @readonly_files;
1.629 banghart 4062: my $cmp1=$what;
4063: if (ref($what)) { $cmp1=join('',@{$what}) };
1.563 banghart 4064: while (my ($file_name,$value) = each(%current_permissions)) {
1.561 banghart 4065: if (ref($value) eq "ARRAY"){
4066: foreach my $stored_what (@{$value}) {
1.629 banghart 4067: my $cmp2=$stored_what;
4068: if (ref($stored_what)) { $cmp2=join('',@{$stored_what}) };
4069: if ($cmp1 eq $cmp2) {
1.561 banghart 4070: push(@readonly_files, $file_name);
1.563 banghart 4071: } elsif (!defined($what)) {
4072: push(@readonly_files, $file_name);
1.561 banghart 4073: }
4074: }
4075: }
4076: }
4077: return @readonly_files;
4078: }
1.577 banghart 4079: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 4080:
1.577 banghart 4081: sub get_marked_as_readonly_hash {
4082: my ($domain,$user,$what) = @_;
1.613 albertel 4083: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4084: my ($tmp)=keys(%current_permissions);
4085: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.613 albertel 4086:
1.577 banghart 4087: my %readonly_files;
4088: while (my ($file_name,$value) = each(%current_permissions)) {
4089: if (ref($value) eq "ARRAY"){
4090: foreach my $stored_what (@{$value}) {
4091: if ($stored_what eq $what) {
4092: $readonly_files{$file_name} = 'locked';
4093: } elsif (!defined($what)) {
4094: $readonly_files{$file_name} = 'locked';
4095: }
4096: }
4097: }
4098: }
4099: return %readonly_files;
4100: }
1.559 banghart 4101: # ------------------------------------------------------------ Unmark as Read Only
4102:
4103: sub unmark_as_readonly {
1.629 banghart 4104: # unmarks $file_name (if $file_name is defined), or all files locked by $what
4105: # for portfolio submissions, $what contains [$symb,$crsid]
4106: my ($domain,$user,$what,$file_name) = @_;
1.634 albertel 4107: my $symb_crs = $what;
4108: if (ref($what)) { $symb_crs=join('',@$what); }
1.613 albertel 4109: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 4110: my ($tmp)=keys(%current_permissions);
4111: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.613 albertel 4112: my @readonly_files = &get_marked_as_readonly($domain,$user,$what);
1.650 albertel 4113: foreach my $file (@readonly_files) {
4114: if (defined($file_name) && ($file_name ne $file)) { next; }
4115: my $current_locks = $current_permissions{$file};
1.563 banghart 4116: my @new_locks;
4117: my @del_keys;
4118: if (ref($current_locks) eq "ARRAY"){
4119: foreach my $locker (@{$current_locks}) {
1.632 albertel 4120: my $compare=$locker;
4121: if (ref($locker)) { $compare=join('',@{$locker}) };
1.650 albertel 4122: if ($compare ne $symb_crs) {
4123: push(@new_locks, $locker);
1.563 banghart 4124: }
4125: }
1.650 albertel 4126: if (scalar(@new_locks) > 0) {
1.563 banghart 4127: $current_permissions{$file} = \@new_locks;
4128: } else {
4129: push(@del_keys, $file);
1.613 albertel 4130: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 4131: delete($current_permissions{$file});
1.563 banghart 4132: }
4133: }
1.561 banghart 4134: }
1.613 albertel 4135: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 4136: return;
4137: }
1.512 banghart 4138:
1.17 www 4139: # ------------------------------------------------------------ Directory lister
4140:
4141: sub dirlist {
1.253 stredwic 4142: my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_;
4143:
1.18 www 4144: $uri=~s/^\///;
4145: $uri=~s/\/$//;
1.253 stredwic 4146: my ($udom, $uname);
4147: (undef,$udom,$uname)=split(/\//,$uri);
4148: if(defined($userdomain)) {
4149: $udom = $userdomain;
4150: }
4151: if(defined($username)) {
4152: $uname = $username;
4153: }
4154:
4155: my $dirRoot = $perlvar{'lonDocRoot'};
4156: if(defined($alternateDirectoryRoot)) {
4157: $dirRoot = $alternateDirectoryRoot;
4158: $dirRoot =~ s/\/$//;
4159: }
4160:
4161: if($udom) {
4162: if($uname) {
1.605 matthew 4163: my $listing=reply('ls2:'.$dirRoot.'/'.$uri,
1.253 stredwic 4164: homeserver($uname,$udom));
1.605 matthew 4165: my @listing_results;
4166: if ($listing eq 'unknown_cmd') {
4167: $listing=reply('ls:'.$dirRoot.'/'.$uri,
4168: homeserver($uname,$udom));
4169: @listing_results = split(/:/,$listing);
4170: } else {
4171: @listing_results = map { &unescape($_); } split(/:/,$listing);
4172: }
4173: return @listing_results;
1.253 stredwic 4174: } elsif(!defined($alternateDirectoryRoot)) {
4175: my $tryserver;
4176: my %allusers=();
4177: foreach $tryserver (keys %libserv) {
4178: if($hostdom{$tryserver} eq $udom) {
1.605 matthew 4179: my $listing=reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
1.253 stredwic 4180: $udom, $tryserver);
1.605 matthew 4181: my @listing_results;
4182: if ($listing eq 'unknown_cmd') {
4183: $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
4184: $udom, $tryserver);
4185: @listing_results = split(/:/,$listing);
4186: } else {
4187: @listing_results =
4188: map { &unescape($_); } split(/:/,$listing);
4189: }
4190: if ($listing_results[0] ne 'no_such_dir' &&
4191: $listing_results[0] ne 'empty' &&
4192: $listing_results[0] ne 'con_lost') {
4193: foreach (@listing_results) {
1.253 stredwic 4194: my ($entry,@stat)=split(/&/,$_);
4195: $allusers{$entry}=1;
4196: }
4197: }
1.191 harris41 4198: }
1.253 stredwic 4199: }
4200: my $alluserstr='';
4201: foreach (sort keys %allusers) {
4202: $alluserstr.=$_.'&user:';
4203: }
4204: $alluserstr=~s/:$//;
4205: return split(/:/,$alluserstr);
4206: } else {
4207: my @emptyResults = ();
4208: push(@emptyResults, 'missing user name');
4209: return split(':',@emptyResults);
4210: }
4211: } elsif(!defined($alternateDirectoryRoot)) {
4212: my $tryserver;
4213: my %alldom=();
4214: foreach $tryserver (keys %libserv) {
4215: $alldom{$hostdom{$tryserver}}=1;
4216: }
4217: my $alldomstr='';
4218: foreach (sort keys %alldom) {
1.397 albertel 4219: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'/&domain:';
1.253 stredwic 4220: }
4221: $alldomstr=~s/:$//;
4222: return split(/:/,$alldomstr);
4223: } else {
4224: my @emptyResults = ();
4225: push(@emptyResults, 'missing domain');
4226: return split(':',@emptyResults);
1.275 stredwic 4227: }
4228: }
4229:
4230: # --------------------------------------------- GetFileTimestamp
4231: # This function utilizes dirlist and returns the date stamp for
4232: # when it was last modified. It will also return an error of -1
4233: # if an error occurs
4234:
1.410 matthew 4235: ##
4236: ## FIXME: This subroutine assumes its caller knows something about the
4237: ## directory structure of the home server for the student ($root).
4238: ## Not a good assumption to make. Since this is for looking up files
4239: ## in user directories, the full path should be constructed by lond, not
4240: ## whatever machine we request data from.
4241: ##
1.275 stredwic 4242: sub GetFileTimestamp {
4243: my ($studentDomain,$studentName,$filename,$root)=@_;
4244: $studentDomain=~s/\W//g;
4245: $studentName=~s/\W//g;
4246: my $subdir=$studentName.'__';
4247: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
4248: my $proname="$studentDomain/$subdir/$studentName";
4249: $proname .= '/'.$filename;
1.375 matthew 4250: my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain,
4251: $studentName, $root);
1.275 stredwic 4252: my @stats = split('&', $fileStat);
4253: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 4254: # @stats contains first the filename, then the stat output
4255: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 4256: } else {
4257: return -1;
1.253 stredwic 4258: }
1.26 www 4259: }
4260:
4261: # -------------------------------------------------------- Value of a Condition
4262:
1.40 www 4263: sub directcondval {
4264: my $number=shift;
1.620 albertel 4265: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 4266: &Apache::lonuserstate::evalstate();
4267: }
1.620 albertel 4268: if ($env{'user.state.'.$env{'request.course.id'}}) {
4269: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 4270: } else {
4271: return 2;
4272: }
4273: }
4274:
1.26 www 4275: sub condval {
4276: my $condidx=shift;
4277: my $result=0;
1.54 www 4278: my $allpathcond='';
1.191 harris41 4279: foreach (split(/\|/,$condidx)) {
1.620 albertel 4280: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$_})) {
1.54 www 4281: $allpathcond.=
1.620 albertel 4282: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$_}.')|';
1.54 www 4283: }
1.191 harris41 4284: }
1.54 www 4285: $allpathcond=~s/\|$//;
1.620 albertel 4286: if ($env{'request.course.id'}) {
1.54 www 4287: if ($allpathcond) {
1.26 www 4288: my $operand='|';
4289: my @stack;
1.191 harris41 4290: foreach ($allpathcond=~/(\d+|\(|\)|\&|\|)/g) {
1.26 www 4291: if ($_ eq '(') {
4292: push @stack,($operand,$result)
4293: } elsif ($_ eq ')') {
4294: my $before=pop @stack;
4295: if (pop @stack eq '&') {
4296: $result=$result>$before?$before:$result;
4297: } else {
4298: $result=$result>$before?$result:$before;
4299: }
4300: } elsif (($_ eq '&') || ($_ eq '|')) {
4301: $operand=$_;
4302: } else {
1.40 www 4303: my $new=directcondval($_);
1.26 www 4304: if ($operand eq '&') {
4305: $result=$result>$new?$new:$result;
4306: } else {
4307: $result=$result>$new?$result:$new;
1.191 harris41 4308: }
1.26 www 4309: }
1.191 harris41 4310: }
1.26 www 4311: }
4312: }
4313: return $result;
1.421 albertel 4314: }
4315:
4316: # ---------------------------------------------------- Devalidate courseresdata
4317:
4318: sub devalidatecourseresdata {
4319: my ($coursenum,$coursedomain)=@_;
4320: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 4321: &devalidate_cache_new('courseres',$hashid);
1.28 www 4322: }
4323:
1.200 www 4324: # --------------------------------------------------- Course Resourcedata Query
4325:
1.624 albertel 4326: sub get_courseresdata {
4327: my ($coursenum,$coursedomain)=@_;
1.200 www 4328: my $coursehom=&homeserver($coursenum,$coursedomain);
4329: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 4330: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 4331: my %dumpreply;
1.417 albertel 4332: unless (defined($cached)) {
1.624 albertel 4333: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 4334: $result=\%dumpreply;
1.251 albertel 4335: my ($tmp) = keys(%dumpreply);
4336: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 4337: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 4338: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
4339: return $tmp;
1.416 albertel 4340: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 4341: $result=undef;
1.599 albertel 4342: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 4343: }
4344: }
1.624 albertel 4345: return $result;
4346: }
4347:
1.633 albertel 4348: sub devalidateuserresdata {
4349: my ($uname,$udom)=@_;
4350: my $hashid="$udom:$uname";
4351: &devalidate_cache_new('userres',$hashid);
4352: }
4353:
1.624 albertel 4354: sub get_userresdata {
4355: my ($uname,$udom)=@_;
4356: #most student don\'t have any data set, check if there is some data
4357: if (&EXT_cache_status($udom,$uname)) { return undef; }
4358:
4359: my $hashid="$udom:$uname";
4360: my ($result,$cached)=&is_cached_new('userres',$hashid);
4361: if (!defined($cached)) {
4362: my %resourcedata=&dump('resourcedata',$udom,$uname);
4363: $result=\%resourcedata;
4364: &do_cache_new('userres',$hashid,$result,600);
4365: }
4366: my ($tmp)=keys(%$result);
4367: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
4368: return $result;
4369: }
4370: #error 2 occurs when the .db doesn't exist
4371: if ($tmp!~/error: 2 /) {
4372: &logthis("<font color=blue>WARNING:".
4373: " Trying to get resource data for ".
4374: $uname." at ".$udom.": ".
4375: $tmp."</font>");
4376: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 4377: #&EXT_cache_set($udom,$uname);
4378: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 4379: undef($tmp); # not really an error so don't send it back
1.624 albertel 4380: }
4381: return $tmp;
4382: }
4383:
4384: sub resdata {
4385: my ($name,$domain,$type,@which)=@_;
4386: my $result;
4387: if ($type eq 'course') {
4388: $result=&get_courseresdata($name,$domain);
4389: } elsif ($type eq 'user') {
4390: $result=&get_userresdata($name,$domain);
4391: }
4392: if (!ref($result)) { return $result; }
1.251 albertel 4393: foreach my $item (@which) {
1.417 albertel 4394: if (defined($result->{$item})) {
4395: return $result->{$item};
1.251 albertel 4396: }
1.250 albertel 4397: }
1.291 albertel 4398: return undef;
1.200 www 4399: }
4400:
1.379 matthew 4401: #
4402: # EXT resource caching routines
4403: #
4404:
4405: sub clear_EXT_cache_status {
1.383 albertel 4406: &delenv('cache.EXT.');
1.379 matthew 4407: }
4408:
4409: sub EXT_cache_status {
4410: my ($target_domain,$target_user) = @_;
1.383 albertel 4411: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 4412: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 4413: # We know already the user has no data
4414: return 1;
4415: } else {
4416: return 0;
4417: }
4418: }
4419:
4420: sub EXT_cache_set {
4421: my ($target_domain,$target_user) = @_;
1.383 albertel 4422: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.633 albertel 4423: #&appenv($cachename => time);
1.379 matthew 4424: }
4425:
1.28 www 4426: # --------------------------------------------------------- Value of a Variable
1.58 www 4427: sub EXT {
1.395 albertel 4428: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.218 albertel 4429:
1.68 www 4430: unless ($varname) { return ''; }
1.218 albertel 4431: #get real user name/domain, courseid and symb
4432: my $courseid;
1.359 albertel 4433: my $publicuser;
1.427 www 4434: if ($symbparm) {
4435: $symbparm=&get_symb_from_alias($symbparm);
4436: }
1.218 albertel 4437: if (!($uname && $udom)) {
1.360 albertel 4438: (my $cursymb,$courseid,$udom,$uname,$publicuser)=
1.378 matthew 4439: &Apache::lonxml::whichuser($symbparm);
1.218 albertel 4440: if (!$symbparm) { $symbparm=$cursymb; }
4441: } else {
1.620 albertel 4442: $courseid=$env{'request.course.id'};
1.218 albertel 4443: }
1.48 www 4444: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
4445: my $rest;
1.320 albertel 4446: if (defined($therest[0])) {
1.48 www 4447: $rest=join('.',@therest);
4448: } else {
4449: $rest='';
4450: }
1.320 albertel 4451:
1.57 www 4452: my $qualifierrest=$qualifier;
4453: if ($rest) { $qualifierrest.='.'.$rest; }
4454: my $spacequalifierrest=$space;
4455: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 4456: if ($realm eq 'user') {
1.48 www 4457: # --------------------------------------------------------------- user.resource
4458: if ($space eq 'resource') {
1.651 albertel 4459: if ( (defined($Apache::lonhomework::parsing_a_problem)
4460: || defined($Apache::lonhomework::parsing_a_task))
4461: &&
4462: ($symbparm eq &symbread()) ) {
1.335 albertel 4463: return $Apache::lonhomework::history{$qualifierrest};
4464: } else {
1.359 albertel 4465: my %restored;
1.620 albertel 4466: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 4467: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
4468: } else {
4469: %restored=&restore($symbparm,$courseid,$udom,$uname);
4470: }
1.335 albertel 4471: return $restored{$qualifierrest};
4472: }
1.48 www 4473: # ----------------------------------------------------------------- user.access
4474: } elsif ($space eq 'access') {
1.218 albertel 4475: # FIXME - not supporting calls for a specific user
1.48 www 4476: return &allowed($qualifier,$rest);
4477: # ------------------------------------------ user.preferences, user.environment
4478: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 4479: if (($uname eq $env{'user.name'}) &&
4480: ($udom eq $env{'user.domain'})) {
4481: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 4482: } else {
1.359 albertel 4483: my %returnhash;
4484: if (!$publicuser) {
4485: %returnhash=&userenvironment($udom,$uname,
4486: $qualifierrest);
4487: }
1.218 albertel 4488: return $returnhash{$qualifierrest};
4489: }
1.48 www 4490: # ----------------------------------------------------------------- user.course
4491: } elsif ($space eq 'course') {
1.218 albertel 4492: # FIXME - not supporting calls for a specific user
1.620 albertel 4493: return $env{join('.',('request.course',$qualifier))};
1.48 www 4494: # ------------------------------------------------------------------- user.role
4495: } elsif ($space eq 'role') {
1.218 albertel 4496: # FIXME - not supporting calls for a specific user
1.620 albertel 4497: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 4498: if ($qualifier eq 'value') {
4499: return $role;
4500: } elsif ($qualifier eq 'extent') {
4501: return $where;
4502: }
4503: # ----------------------------------------------------------------- user.domain
4504: } elsif ($space eq 'domain') {
1.218 albertel 4505: return $udom;
1.48 www 4506: # ------------------------------------------------------------------- user.name
4507: } elsif ($space eq 'name') {
1.218 albertel 4508: return $uname;
1.48 www 4509: # ---------------------------------------------------- Any other user namespace
1.29 www 4510: } else {
1.359 albertel 4511: my %reply;
4512: if (!$publicuser) {
4513: %reply=&get($space,[$qualifierrest],$udom,$uname);
4514: }
4515: return $reply{$qualifierrest};
1.48 www 4516: }
1.236 www 4517: } elsif ($realm eq 'query') {
4518: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 4519: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4520: [$spacequalifierrest]);
1.620 albertel 4521: return $env{'form.'.$spacequalifierrest};
1.236 www 4522: } elsif ($realm eq 'request') {
1.48 www 4523: # ------------------------------------------------------------- request.browser
4524: if ($space eq 'browser') {
1.430 www 4525: if ($qualifier eq 'textremote') {
4526: if (&mt('textual_remote_display') eq 'on') {
4527: return 1;
4528: } else {
4529: return 0;
4530: }
4531: } else {
1.620 albertel 4532: return $env{'browser.'.$qualifier};
1.430 www 4533: }
1.57 www 4534: # ------------------------------------------------------------ request.filename
4535: } else {
1.620 albertel 4536: return $env{'request.'.$spacequalifierrest};
1.29 www 4537: }
1.28 www 4538: } elsif ($realm eq 'course') {
1.48 www 4539: # ---------------------------------------------------------- course.description
1.620 albertel 4540: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 4541: } elsif ($realm eq 'resource') {
1.165 www 4542:
1.395 albertel 4543: my $section;
1.620 albertel 4544: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 4545: if (!$symbparm) { $symbparm=&symbread(); }
4546: }
1.593 albertel 4547: my ($courselevelm,$courselevel);
1.539 albertel 4548: if ($symbparm && defined($courseid) &&
1.620 albertel 4549: $courseid eq $env{'request.course.id'}) {
1.165 www 4550:
1.218 albertel 4551: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 4552:
1.60 www 4553: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 4554: my $symbp=$symbparm;
1.409 www 4555: my $mapp=(&decode_symb($symbp))[0];
1.218 albertel 4556:
4557: my $symbparm=$symbp.'.'.$spacequalifierrest;
4558: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
4559:
1.620 albertel 4560: if (($env{'user.name'} eq $uname) &&
4561: ($env{'user.domain'} eq $udom)) {
4562: $section=$env{'request.course.sec'};
1.218 albertel 4563: } else {
1.539 albertel 4564: if (! defined($usection)) {
1.551 albertel 4565: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 4566: } else {
4567: $section = $usection;
4568: }
1.218 albertel 4569: }
4570:
4571: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
4572: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
4573: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
4574:
1.593 albertel 4575: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 4576: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 4577: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 4578:
1.60 www 4579: # ----------------------------------------------------------- first, check user
1.624 albertel 4580:
4581: my $userreply=&resdata($uname,$udom,'user',
4582: ($courselevelr,$courselevelm,
4583: $courselevel));
4584:
4585: if (defined($userreply)) { return $userreply; }
1.95 www 4586:
1.594 albertel 4587: # ------------------------------------------------ second, check some of course
1.96 www 4588:
1.624 albertel 4589: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
4590: $env{'course.'.$courseid.'.domain'},
4591: 'course',
4592: ($seclevelr,$seclevelm,$seclevel,
4593: $courselevelr));
1.287 albertel 4594: if (defined($coursereply)) { return $coursereply; }
1.200 www 4595:
1.60 www 4596: # ------------------------------------------------------ third, check map parms
1.218 albertel 4597: my %parmhash=();
4598: my $thisparm='';
4599: if (tie(%parmhash,'GDBM_File',
1.620 albertel 4600: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 4601: &GDBM_READER(),0640)) {
1.218 albertel 4602: $thisparm=$parmhash{$symbparm};
4603: untie(%parmhash);
4604: }
4605: if ($thisparm) { return $thisparm; }
4606: }
1.594 albertel 4607: # ------------------------------------------ fourth, look in resource metadata
1.71 www 4608:
1.218 albertel 4609: $spacequalifierrest=~s/\./\_/;
1.282 albertel 4610: my $filename;
4611: if (!$symbparm) { $symbparm=&symbread(); }
4612: if ($symbparm) {
1.409 www 4613: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 4614: } else {
1.620 albertel 4615: $filename=$env{'request.filename'};
1.282 albertel 4616: }
4617: my $metadata=&metadata($filename,$spacequalifierrest);
1.288 albertel 4618: if (defined($metadata)) { return $metadata; }
1.282 albertel 4619: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.288 albertel 4620: if (defined($metadata)) { return $metadata; }
1.142 www 4621:
1.594 albertel 4622: # ---------------------------------------------- fourth, look in rest pf course
1.593 albertel 4623: if ($symbparm && defined($courseid) &&
1.620 albertel 4624: $courseid eq $env{'request.course.id'}) {
1.624 albertel 4625: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
4626: $env{'course.'.$courseid.'.domain'},
4627: 'course',
4628: ($courselevelm,$courselevel));
1.593 albertel 4629: if (defined($coursereply)) { return $coursereply; }
4630: }
1.145 www 4631: # ------------------------------------------------------------------ Cascade up
1.218 albertel 4632: unless ($space eq '0') {
1.336 albertel 4633: my @parts=split(/_/,$space);
4634: my $id=pop(@parts);
4635: my $part=join('_',@parts);
4636: if ($part eq '') { $part='0'; }
4637: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 4638: $symbparm,$udom,$uname,$section,1);
1.337 albertel 4639: if (defined($partgeneral)) { return $partgeneral; }
1.218 albertel 4640: }
1.395 albertel 4641: if ($recurse) { return undef; }
4642: my $pack_def=&packages_tab_default($filename,$varname);
4643: if (defined($pack_def)) { return $pack_def; }
1.71 www 4644:
1.48 www 4645: # ---------------------------------------------------- Any other user namespace
4646: } elsif ($realm eq 'environment') {
4647: # ----------------------------------------------------------------- environment
1.620 albertel 4648: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
4649: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 4650: } else {
4651: my %returnhash=&userenvironment($udom,$uname,
4652: $spacequalifierrest);
4653: return $returnhash{$spacequalifierrest};
4654: }
1.28 www 4655: } elsif ($realm eq 'system') {
1.48 www 4656: # ----------------------------------------------------------------- system.time
4657: if ($space eq 'time') {
4658: return time;
4659: }
1.28 www 4660: }
1.48 www 4661: return '';
1.61 www 4662: }
4663:
1.395 albertel 4664: sub packages_tab_default {
4665: my ($uri,$varname)=@_;
4666: my (undef,$part,$name)=split(/\./,$varname);
4667: my $packages=&metadata($uri,'packages');
4668: foreach my $package (split(/,/,$packages)) {
4669: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.468 albertel 4670: if (defined($packagetab{"$pack_type&$name&default"})) {
4671: return $packagetab{"$pack_type&$name&default"};
4672: }
1.585 albertel 4673: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 4674: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
4675: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 4676: }
4677: }
4678: return undef;
4679: }
4680:
1.334 albertel 4681: sub add_prefix_and_part {
4682: my ($prefix,$part)=@_;
4683: my $keyroot;
4684: if (defined($prefix) && $prefix !~ /^__/) {
4685: # prefix that has a part already
4686: $keyroot=$prefix;
4687: } elsif (defined($prefix)) {
4688: # prefix that is missing a part
4689: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
4690: } else {
4691: # no prefix at all
4692: if (defined($part)) { $keyroot='_'.$part; }
4693: }
4694: return $keyroot;
4695: }
4696:
1.71 www 4697: # ---------------------------------------------------------------- Get metadata
4698:
1.599 albertel 4699: my %metaentry;
1.71 www 4700: sub metadata {
1.176 www 4701: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 4702: $uri=&declutter($uri);
1.288 albertel 4703: # if it is a non metadata possible uri return quickly
1.529 albertel 4704: if (($uri eq '') ||
4705: (($uri =~ m|^/*adm/|) &&
4706: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.423 albertel 4707: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
1.489 albertel 4708: ($uri =~ m|home/[^/]+/public_html/|)) {
1.468 albertel 4709: return undef;
1.288 albertel 4710: }
1.73 www 4711: my $filename=$uri;
4712: $uri=~s/\.meta$//;
1.172 www 4713: #
4714: # Is the metadata already cached?
1.177 www 4715: # Look at timestamp of caching
1.172 www 4716: # Everything is cached by the main uri, libraries are never directly cached
4717: #
1.428 albertel 4718: if (!defined($liburi)) {
1.599 albertel 4719: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 4720: if (defined($cached)) { return $result->{':'.$what}; }
4721: }
4722: {
1.172 www 4723: #
4724: # Is this a recursive call for a library?
4725: #
1.599 albertel 4726: # if (! exists($metacache{$uri})) {
4727: # $metacache{$uri}={};
4728: # }
1.171 www 4729: if ($liburi) {
4730: $liburi=&declutter($liburi);
4731: $filename=$liburi;
1.401 bowersj2 4732: } else {
1.599 albertel 4733: &devalidate_cache_new('meta',$uri);
4734: undef(%metaentry);
1.401 bowersj2 4735: }
1.140 www 4736: my %metathesekeys=();
1.73 www 4737: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 4738: my $metastring;
1.609 banghart 4739: if ($uri !~ m -^(uploaded|editupload)/-) {
1.543 albertel 4740: my $file=&filelocation('',&clutter($filename));
1.599 albertel 4741: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 4742: $metastring=&getfile($file);
1.489 albertel 4743: }
1.208 albertel 4744: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 4745: my $token;
1.140 www 4746: undef %metathesekeys;
1.71 www 4747: while ($token=$parser->get_token) {
1.339 albertel 4748: if ($token->[0] eq 'S') {
4749: if (defined($token->[2]->{'package'})) {
1.172 www 4750: #
4751: # This is a package - get package info
4752: #
1.339 albertel 4753: my $package=$token->[2]->{'package'};
4754: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
4755: if (defined($token->[2]->{'id'})) {
4756: $keyroot.='_'.$token->[2]->{'id'};
4757: }
1.599 albertel 4758: if ($metaentry{':packages'}) {
4759: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 4760: } else {
1.599 albertel 4761: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 4762: }
1.613 albertel 4763: foreach (sort keys %packagetab) {
1.432 albertel 4764: my $part=$keyroot;
4765: $part=~s/^\_//;
4766: if ($_=~/^\Q$package\E\&/ ||
4767: $_=~/^\Q$package\E_0\&/) {
1.339 albertel 4768: my ($pack,$name,$subp)=split(/\&/,$_);
1.395 albertel 4769: # ignore package.tab specified default values
4770: # here &package_tab_default() will fetch those
4771: if ($subp eq 'default') { next; }
1.339 albertel 4772: my $value=$packagetab{$_};
1.432 albertel 4773: my $unikey;
4774: if ($pack =~ /_0$/) {
4775: $unikey='parameter_0_'.$name;
4776: $part=0;
4777: } else {
4778: $unikey='parameter'.$keyroot.'_'.$name;
4779: }
1.339 albertel 4780: if ($subp eq 'display') {
4781: $value.=' [Part: '.$part.']';
4782: }
1.599 albertel 4783: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 4784: $metathesekeys{$unikey}=1;
1.599 albertel 4785: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
4786: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 4787: }
1.599 albertel 4788: if (defined($metaentry{':'.$unikey.'.default'})) {
4789: $metaentry{':'.$unikey}=
4790: $metaentry{':'.$unikey.'.default'};
1.356 albertel 4791: }
1.339 albertel 4792: }
4793: }
4794: } else {
1.172 www 4795: #
4796: # This is not a package - some other kind of start tag
1.339 albertel 4797: #
4798: my $entry=$token->[1];
4799: my $unikey;
4800: if ($entry eq 'import') {
4801: $unikey='';
4802: } else {
4803: $unikey=$entry;
4804: }
4805: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
4806:
4807: if (defined($token->[2]->{'id'})) {
4808: $unikey.='_'.$token->[2]->{'id'};
4809: }
1.175 www 4810:
1.339 albertel 4811: if ($entry eq 'import') {
1.175 www 4812: #
4813: # Importing a library here
1.339 albertel 4814: #
4815: if ($depthcount<20) {
4816: my $location=$parser->get_text('/import');
4817: my $dir=$filename;
4818: $dir=~s|[^/]*$||;
4819: $location=&filelocation($dir,$location);
4820: foreach (sort(split(/\,/,&metadata($uri,'keys',
4821: $location,$unikey,
4822: $depthcount+1)))) {
1.599 albertel 4823: $metaentry{':'.$_}=$metaentry{':'.$_};
1.339 albertel 4824: $metathesekeys{$_}=1;
4825: }
4826: }
4827: } else {
4828:
4829: if (defined($token->[2]->{'name'})) {
4830: $unikey.='_'.$token->[2]->{'name'};
4831: }
4832: $metathesekeys{$unikey}=1;
4833: foreach (@{$token->[3]}) {
1.599 albertel 4834: $metaentry{':'.$unikey.'.'.$_}=$token->[2]->{$_};
1.339 albertel 4835: }
4836: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 4837: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 4838: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
4839: # only ws inside the tag, and not in default, so use default
4840: # as value
1.599 albertel 4841: $metaentry{':'.$unikey}=$default;
1.339 albertel 4842: } else {
1.321 albertel 4843: # either something interesting inside the tag or default
4844: # uninteresting
1.599 albertel 4845: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 4846: }
1.172 www 4847: # end of not-a-package not-a-library import
1.339 albertel 4848: }
1.172 www 4849: # end of not-a-package start tag
1.339 albertel 4850: }
1.172 www 4851: # the next is the end of "start tag"
1.339 albertel 4852: }
4853: }
1.483 albertel 4854: my ($extension) = ($uri =~ /\.(\w+)$/);
4855: foreach my $key (sort(keys(%packagetab))) {
4856: #no specific packages #how's our extension
4857: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 4858: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 4859: \%metathesekeys);
4860: }
1.599 albertel 4861: if (!exists($metaentry{':packages'})) {
1.483 albertel 4862: foreach my $key (sort(keys(%packagetab))) {
4863: #no specific packages well let's get default then
4864: if ($key!~/^default&/) { next; }
1.488 albertel 4865: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 4866: \%metathesekeys);
4867: }
4868: }
1.338 www 4869: # are there custom rights to evaluate
1.599 albertel 4870: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 4871:
1.338 www 4872: #
4873: # Importing a rights file here
1.339 albertel 4874: #
4875: unless ($depthcount) {
1.599 albertel 4876: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 4877: my $dir=$filename;
4878: $dir=~s|[^/]*$||;
4879: $location=&filelocation($dir,$location);
4880: foreach (sort(split(/\,/,&metadata($uri,'keys',
4881: $location,'_rights',
4882: $depthcount+1)))) {
1.599 albertel 4883: #$metaentry{':'.$_}=$metacache{$uri}->{':'.$_};
1.339 albertel 4884: $metathesekeys{$_}=1;
4885: }
4886: }
4887: }
1.599 albertel 4888: $metaentry{':keys'}=join(',',keys %metathesekeys);
4889: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
4890: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.623 albertel 4891: &do_cache_new('meta',$uri,\%metaentry,60*60*24);
1.177 www 4892: # this is the end of "was not already recently cached
1.71 www 4893: }
1.599 albertel 4894: return $metaentry{':'.$what};
1.261 albertel 4895: }
4896:
1.488 albertel 4897: sub metadata_create_package_def {
1.483 albertel 4898: my ($uri,$key,$package,$metathesekeys)=@_;
4899: my ($pack,$name,$subp)=split(/\&/,$key);
4900: if ($subp eq 'default') { next; }
4901:
1.599 albertel 4902: if (defined($metaentry{':packages'})) {
4903: $metaentry{':packages'}.=','.$package;
1.483 albertel 4904: } else {
1.599 albertel 4905: $metaentry{':packages'}=$package;
1.483 albertel 4906: }
4907: my $value=$packagetab{$key};
4908: my $unikey;
4909: $unikey='parameter_0_'.$name;
1.599 albertel 4910: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 4911: $$metathesekeys{$unikey}=1;
1.599 albertel 4912: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
4913: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 4914: }
1.599 albertel 4915: if (defined($metaentry{':'.$unikey.'.default'})) {
4916: $metaentry{':'.$unikey}=
4917: $metaentry{':'.$unikey.'.default'};
1.483 albertel 4918: }
4919: }
4920:
1.261 albertel 4921: sub metadata_generate_part0 {
4922: my ($metadata,$metacache,$uri) = @_;
4923: my %allnames;
4924: foreach my $metakey (sort keys %$metadata) {
4925: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 4926: my $part=$$metacache{':'.$metakey.'.part'};
4927: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 4928: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 4929: $allnames{$name}=$part;
4930: }
4931: }
4932: }
4933: foreach my $name (keys(%allnames)) {
4934: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 4935: my $key=":parameter_0_$name";
1.261 albertel 4936: $$metacache{"$key.part"}='0';
4937: $$metacache{"$key.name"}=$name;
1.428 albertel 4938: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 4939: $allnames{$name}.'_'.$name.
4940: '.type'};
1.428 albertel 4941: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 4942: '.display'};
1.644 www 4943: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 4944: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 4945: $$metacache{"$key.display"}=$olddis;
4946: }
1.71 www 4947: }
4948:
1.301 www 4949: # ------------------------------------------------- Get the title of a resource
4950:
4951: sub gettitle {
4952: my $urlsymb=shift;
4953: my $symb=&symbread($urlsymb);
1.534 albertel 4954: if ($symb) {
1.620 albertel 4955: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 4956: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 4957: if (defined($cached)) {
4958: return $result;
4959: }
1.534 albertel 4960: my ($map,$resid,$url)=&decode_symb($symb);
4961: my $title='';
4962: my %bighash;
1.620 albertel 4963: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.534 albertel 4964: &GDBM_READER(),0640)) {
4965: my $mapid=$bighash{'map_pc_'.&clutter($map)};
4966: $title=$bighash{'title_'.$mapid.'.'.$resid};
4967: untie %bighash;
4968: }
4969: $title=~s/\&colon\;/\:/gs;
4970: if ($title) {
1.599 albertel 4971: return &do_cache_new('title',$key,$title,600);
1.534 albertel 4972: }
4973: $urlsymb=$url;
4974: }
4975: my $title=&metadata($urlsymb,'title');
4976: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
4977: return $title;
1.301 www 4978: }
1.613 albertel 4979:
1.614 albertel 4980: sub get_slot {
4981: my ($which,$cnum,$cdom)=@_;
4982: if (!$cnum || !$cdom) {
4983: (undef,my $courseid)=&Apache::lonxml::whichuser();
1.620 albertel 4984: $cdom=$env{'course.'.$courseid.'.domain'};
4985: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 4986: }
4987: my %slotinfo=&get('slots',[$which],$cdom,$cnum);
4988: &Apache::lonhomework::showhash(%slotinfo);
4989: my ($tmp)=keys(%slotinfo);
4990: if ($tmp=~/^error:/) { return (); }
1.616 albertel 4991: if (ref($slotinfo{$which}) eq 'HASH') {
4992: return %{$slotinfo{$which}};
4993: }
4994: return $slotinfo{$which};
1.614 albertel 4995: }
1.31 www 4996: # ------------------------------------------------- Update symbolic store links
4997:
4998: sub symblist {
4999: my ($mapname,%newhash)=@_;
1.438 www 5000: $mapname=&deversion(&declutter($mapname));
1.31 www 5001: my %hash;
1.620 albertel 5002: if (($env{'request.course.fn'}) && (%newhash)) {
5003: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 5004: &GDBM_WRCREAT(),0640)) {
1.191 harris41 5005: foreach (keys %newhash) {
1.601 albertel 5006: $hash{declutter($_)}=&encode_symb($mapname,$newhash{$_}->[1],
5007: $newhash{$_}->[0]);
1.191 harris41 5008: }
1.31 www 5009: if (untie(%hash)) {
5010: return 'ok';
5011: }
5012: }
5013: }
5014: return 'error';
1.212 www 5015: }
5016:
5017: # --------------------------------------------------------------- Verify a symb
5018:
5019: sub symbverify {
1.510 www 5020: my ($symb,$thisurl)=@_;
5021: my $thisfn=$thisurl;
5022: # wrapper not part of symbs
5023: $thisfn=~s/^\/adm\/wrapper//;
1.439 www 5024: $thisfn=&declutter($thisfn);
1.215 www 5025: # direct jump to resource in page or to a sequence - will construct own symbs
5026: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
5027: # check URL part
1.409 www 5028: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 5029:
1.431 www 5030: unless ($url eq $thisfn) { return 0; }
1.213 www 5031:
1.216 www 5032: $symb=&symbclean($symb);
1.510 www 5033: $thisurl=&deversion($thisurl);
1.439 www 5034: $thisfn=&deversion($thisfn);
1.213 www 5035:
5036: my %bighash;
5037: my $okay=0;
1.431 www 5038:
1.620 albertel 5039: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 5040: &GDBM_READER(),0640)) {
1.510 www 5041: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 5042: unless ($ids) {
1.510 www 5043: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 5044: }
5045: if ($ids) {
5046: # ------------------------------------------------------------------- Has ID(s)
5047: foreach (split(/\,/,$ids)) {
1.644 www 5048: my ($mapid,$resid)=split(/\./,$_);
1.216 www 5049: if (
5050: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
5051: eq $symb) {
1.620 albertel 5052: if (($env{'request.role.adv'}) ||
5053: $bighash{'encrypted_'.$_} eq $env{'request.enc'}) {
1.582 albertel 5054: $okay=1;
5055: }
5056: }
1.216 www 5057: }
5058: }
1.213 www 5059: untie(%bighash);
5060: }
5061: return $okay;
1.31 www 5062: }
5063:
1.210 www 5064: # --------------------------------------------------------------- Clean-up symb
5065:
5066: sub symbclean {
5067: my $symb=shift;
1.568 albertel 5068: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 5069: # remove version from map
5070: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 5071:
1.210 www 5072: # remove version from URL
5073: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 5074:
1.507 www 5075: # remove wrapper
5076:
1.510 www 5077: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.210 www 5078: return $symb;
1.409 www 5079: }
5080:
5081: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 5082:
5083: sub encode_symb {
5084: my ($map,$resid,$url)=@_;
5085: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
5086: }
1.409 www 5087:
5088: sub decode_symb {
1.568 albertel 5089: my $symb=shift;
5090: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
5091: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 5092: return (&fixversion($map),$resid,&fixversion($url));
5093: }
5094:
5095: sub fixversion {
5096: my $fn=shift;
1.609 banghart 5097: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 5098: my %bighash;
5099: my $uri=&clutter($fn);
1.620 albertel 5100: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 5101: # is this cached?
1.599 albertel 5102: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 5103: if (defined($cached)) { return $result; }
5104: # unfortunately not cached, or expired
1.620 albertel 5105: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 5106: &GDBM_READER(),0640)) {
5107: if ($bighash{'version_'.$uri}) {
5108: my $version=$bighash{'version_'.$uri};
1.444 www 5109: unless (($version eq 'mostrecent') ||
5110: ($version==&getversion($uri))) {
1.440 www 5111: $uri=~s/\.(\w+)$/\.$version\.$1/;
5112: }
5113: }
5114: untie %bighash;
1.413 www 5115: }
1.599 albertel 5116: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 5117: }
5118:
5119: sub deversion {
5120: my $url=shift;
5121: $url=~s/\.\d+\.(\w+)$/\.$1/;
5122: return $url;
1.210 www 5123: }
5124:
1.31 www 5125: # ------------------------------------------------------ Return symb list entry
5126:
5127: sub symbread {
1.249 www 5128: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 5129: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 5130: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 5131: # no filename provided? try from environment
1.44 www 5132: unless ($thisfn) {
1.620 albertel 5133: if ($env{'request.symb'}) {
5134: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 5135: }
1.620 albertel 5136: $thisfn=$env{'request.filename'};
1.44 www 5137: }
1.569 albertel 5138: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 5139: # is that filename actually a symb? Verify, clean, and return
5140: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 5141: if (&symbverify($thisfn,$1)) {
1.620 albertel 5142: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 5143: }
1.242 www 5144: }
1.44 www 5145: $thisfn=declutter($thisfn);
1.31 www 5146: my %hash;
1.37 www 5147: my %bighash;
5148: my $syval='';
1.620 albertel 5149: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 5150: my $targetfn = $thisfn;
1.609 banghart 5151: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 5152: $targetfn = 'adm/wrapper/'.$thisfn;
5153: }
1.620 albertel 5154: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 5155: &GDBM_READER(),0640)) {
1.481 raeburn 5156: $syval=$hash{$targetfn};
1.37 www 5157: untie(%hash);
5158: }
5159: # ---------------------------------------------------------- There was an entry
5160: if ($syval) {
1.601 albertel 5161: #unless ($syval=~/\_\d+$/) {
1.620 albertel 5162: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.601 albertel 5163: #&appenv('request.ambiguous' => $thisfn);
1.620 albertel 5164: #return $env{$cache_str}='';
1.601 albertel 5165: #}
5166: #$syval.=$1;
5167: #}
1.37 www 5168: } else {
5169: # ------------------------------------------------------- Was not in symb table
1.620 albertel 5170: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 5171: &GDBM_READER(),0640)) {
1.37 www 5172: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 5173: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 5174: unless ($ids) {
5175: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 5176: }
5177: unless ($ids) {
5178: # alias?
5179: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 5180: }
1.37 www 5181: if ($ids) {
5182: # ------------------------------------------------------------------- Has ID(s)
5183: my @possibilities=split(/\,/,$ids);
1.39 www 5184: if ($#possibilities==0) {
5185: # ----------------------------------------------- There is only one possibility
1.37 www 5186: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 5187: $syval=&encode_symb($bighash{'map_id_'.$mapid},
5188: $resid,$thisfn);
1.249 www 5189: } elsif (!$donotrecurse) {
1.39 www 5190: # ------------------------------------------ There is more than one possibility
5191: my $realpossible=0;
1.191 harris41 5192: foreach (@possibilities) {
1.39 www 5193: my $file=$bighash{'src_'.$_};
5194: if (&allowed('bre',$file)) {
5195: my ($mapid,$resid)=split(/\./,$_);
5196: if ($bighash{'map_type_'.$mapid} ne 'page') {
5197: $realpossible++;
1.626 albertel 5198: $syval=&encode_symb($bighash{'map_id_'.$mapid},
5199: $resid,$thisfn);
1.39 www 5200: }
5201: }
1.191 harris41 5202: }
1.39 www 5203: if ($realpossible!=1) { $syval=''; }
1.249 www 5204: } else {
5205: $syval='';
1.37 www 5206: }
5207: }
5208: untie(%bighash)
1.481 raeburn 5209: }
1.31 www 5210: }
1.62 www 5211: if ($syval) {
1.620 albertel 5212: return $env{$cache_str}=$syval;
1.62 www 5213: }
1.31 www 5214: }
1.44 www 5215: &appenv('request.ambiguous' => $thisfn);
1.620 albertel 5216: return $env{$cache_str}='';
1.31 www 5217: }
5218:
5219: # ---------------------------------------------------------- Return random seed
5220:
1.32 www 5221: sub numval {
5222: my $txt=shift;
5223: $txt=~tr/A-J/0-9/;
5224: $txt=~tr/a-j/0-9/;
5225: $txt=~tr/K-T/0-9/;
5226: $txt=~tr/k-t/0-9/;
5227: $txt=~tr/U-Z/0-5/;
5228: $txt=~tr/u-z/0-5/;
5229: $txt=~s/\D//g;
1.564 albertel 5230: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 5231: return int($txt);
1.368 albertel 5232: }
5233:
1.484 albertel 5234: sub numval2 {
5235: my $txt=shift;
5236: $txt=~tr/A-J/0-9/;
5237: $txt=~tr/a-j/0-9/;
5238: $txt=~tr/K-T/0-9/;
5239: $txt=~tr/k-t/0-9/;
5240: $txt=~tr/U-Z/0-5/;
5241: $txt=~tr/u-z/0-5/;
5242: $txt=~s/\D//g;
5243: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
5244: my $total;
5245: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 5246: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 5247: return int($total);
5248: }
5249:
1.575 albertel 5250: sub numval3 {
5251: use integer;
5252: my $txt=shift;
5253: $txt=~tr/A-J/0-9/;
5254: $txt=~tr/a-j/0-9/;
5255: $txt=~tr/K-T/0-9/;
5256: $txt=~tr/k-t/0-9/;
5257: $txt=~tr/U-Z/0-5/;
5258: $txt=~tr/u-z/0-5/;
5259: $txt=~s/\D//g;
5260: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
5261: my $total;
5262: foreach my $val (@txts) { $total+=$val; }
5263: if ($_64bit) { $total=(($total<<32)>>32); }
5264: return $total;
5265: }
5266:
1.368 albertel 5267: sub latest_rnd_algorithm_id {
1.575 albertel 5268: return '64bit4';
1.366 albertel 5269: }
1.32 www 5270:
1.503 albertel 5271: sub get_rand_alg {
5272: my ($courseid)=@_;
5273: if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }
5274: if ($courseid) {
1.620 albertel 5275: return $env{"course.$courseid.rndseed"};
1.503 albertel 5276: }
5277: return &latest_rnd_algorithm_id();
5278: }
5279:
1.562 albertel 5280: sub validCODE {
5281: my ($CODE)=@_;
5282: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
5283: return 0;
5284: }
5285:
1.491 albertel 5286: sub getCODE {
1.620 albertel 5287: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 5288: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
5289: defined($Apache::lonhomework::parsing_a_task) ) &&
5290: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 5291: return $Apache::lonhomework::history{'resource.CODE'};
5292: }
5293: return undef;
5294: }
5295:
1.31 www 5296: sub rndseed {
1.155 albertel 5297: my ($symb,$courseid,$domain,$username)=@_;
1.366 albertel 5298:
5299: my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser();
1.155 albertel 5300: if (!$symb) {
1.366 albertel 5301: unless ($symb=$wsymb) { return time; }
5302: }
5303: if (!$courseid) { $courseid=$wcourseid; }
5304: if (!$domain) { $domain=$wdomain; }
5305: if (!$username) { $username=$wusername }
1.503 albertel 5306: my $which=&get_rand_alg();
1.491 albertel 5307: if (defined(&getCODE())) {
1.575 albertel 5308: if ($which eq '64bit4') {
5309: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
5310: } else {
5311: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
5312: }
5313: } elsif ($which eq '64bit4') {
5314: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 5315: } elsif ($which eq '64bit3') {
5316: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 5317: } elsif ($which eq '64bit2') {
5318: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 5319: } elsif ($which eq '64bit') {
5320: return &rndseed_64bit($symb,$courseid,$domain,$username);
5321: }
5322: return &rndseed_32bit($symb,$courseid,$domain,$username);
5323: }
5324:
5325: sub rndseed_32bit {
5326: my ($symb,$courseid,$domain,$username)=@_;
5327: {
5328: use integer;
5329: my $symbchck=unpack("%32C*",$symb) << 27;
5330: my $symbseed=numval($symb) << 22;
5331: my $namechck=unpack("%32C*",$username) << 17;
5332: my $nameseed=numval($username) << 12;
5333: my $domainseed=unpack("%32C*",$domain) << 7;
5334: my $courseseed=unpack("%32C*",$courseid);
5335: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
5336: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5337: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.564 albertel 5338: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 5339: return $num;
5340: }
5341: }
5342:
5343: sub rndseed_64bit {
5344: my ($symb,$courseid,$domain,$username)=@_;
5345: {
5346: use integer;
5347: my $symbchck=unpack("%32S*",$symb) << 21;
5348: my $symbseed=numval($symb) << 10;
5349: my $namechck=unpack("%32S*",$username);
5350:
5351: my $nameseed=numval($username) << 21;
5352: my $domainseed=unpack("%32S*",$domain) << 10;
5353: my $courseseed=unpack("%32S*",$courseid);
5354:
5355: my $num1=$symbchck+$symbseed+$namechck;
5356: my $num2=$nameseed+$domainseed+$courseseed;
5357: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5358: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.564 albertel 5359: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5360: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 5361: return "$num1,$num2";
1.155 albertel 5362: }
1.366 albertel 5363: }
5364:
1.443 albertel 5365: sub rndseed_64bit2 {
5366: my ($symb,$courseid,$domain,$username)=@_;
5367: {
5368: use integer;
5369: # strings need to be an even # of cahracters long, it it is odd the
5370: # last characters gets thrown away
5371: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5372: my $symbseed=numval($symb) << 10;
5373: my $namechck=unpack("%32S*",$username.' ');
5374:
5375: my $nameseed=numval($username) << 21;
1.501 albertel 5376: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5377: my $courseseed=unpack("%32S*",$courseid.' ');
5378:
5379: my $num1=$symbchck+$symbseed+$namechck;
5380: my $num2=$nameseed+$domainseed+$courseseed;
5381: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5382: #&Apache::lonxml::debug("rndseed :$num:$symb");
5383: return "$num1,$num2";
5384: }
5385: }
5386:
5387: sub rndseed_64bit3 {
5388: my ($symb,$courseid,$domain,$username)=@_;
5389: {
5390: use integer;
5391: # strings need to be an even # of cahracters long, it it is odd the
5392: # last characters gets thrown away
5393: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5394: my $symbseed=numval2($symb) << 10;
5395: my $namechck=unpack("%32S*",$username.' ');
5396:
5397: my $nameseed=numval2($username) << 21;
1.443 albertel 5398: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5399: my $courseseed=unpack("%32S*",$courseid.' ');
5400:
5401: my $num1=$symbchck+$symbseed+$namechck;
5402: my $num2=$nameseed+$domainseed+$courseseed;
5403: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
1.564 albertel 5404: #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
5405: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5406:
1.503 albertel 5407: return "$num1:$num2";
1.443 albertel 5408: }
5409: }
5410:
1.575 albertel 5411: sub rndseed_64bit4 {
5412: my ($symb,$courseid,$domain,$username)=@_;
5413: {
5414: use integer;
5415: # strings need to be an even # of cahracters long, it it is odd the
5416: # last characters gets thrown away
5417: my $symbchck=unpack("%32S*",$symb.' ') << 21;
5418: my $symbseed=numval3($symb) << 10;
5419: my $namechck=unpack("%32S*",$username.' ');
5420:
5421: my $nameseed=numval3($username) << 21;
5422: my $domainseed=unpack("%32S*",$domain.' ') << 10;
5423: my $courseseed=unpack("%32S*",$courseid.' ');
5424:
5425: my $num1=$symbchck+$symbseed+$namechck;
5426: my $num2=$nameseed+$domainseed+$courseseed;
5427: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
5428: #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
5429: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
5430:
5431: return "$num1:$num2";
5432: }
5433: }
5434:
1.366 albertel 5435: sub rndseed_CODE_64bit {
5436: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 5437: {
1.366 albertel 5438: use integer;
1.443 albertel 5439: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 5440: my $symbseed=numval2($symb);
1.491 albertel 5441: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
5442: my $CODEseed=numval(&getCODE());
1.443 albertel 5443: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 5444: my $num1=$symbseed+$CODEchck;
5445: my $num2=$CODEseed+$courseseed+$symbchck;
5446: #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
1.366 albertel 5447: #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
1.564 albertel 5448: if ($_64bit) { $num1=(($num1<<32)>>32); }
5449: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 5450: return "$num1:$num2";
1.366 albertel 5451: }
5452: }
5453:
1.575 albertel 5454: sub rndseed_CODE_64bit4 {
5455: my ($symb,$courseid,$domain,$username)=@_;
5456: {
5457: use integer;
5458: my $symbchck=unpack("%32S*",$symb.' ') << 16;
5459: my $symbseed=numval3($symb);
5460: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
5461: my $CODEseed=numval3(&getCODE());
5462: my $courseseed=unpack("%32S*",$courseid.' ');
5463: my $num1=$symbseed+$CODEchck;
5464: my $num2=$CODEseed+$courseseed+$symbchck;
5465: #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
5466: #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
5467: if ($_64bit) { $num1=(($num1<<32)>>32); }
5468: if ($_64bit) { $num2=(($num2<<32)>>32); }
5469: return "$num1:$num2";
5470: }
5471: }
5472:
1.366 albertel 5473: sub setup_random_from_rndseed {
5474: my ($rndseed)=@_;
1.503 albertel 5475: if ($rndseed =~/([,:])/) {
5476: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 5477: &Math::Random::random_set_seed(abs($num1),abs($num2));
5478: } else {
5479: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 5480: }
1.36 albertel 5481: }
5482:
1.474 albertel 5483: sub latest_receipt_algorithm_id {
5484: return 'receipt2';
5485: }
5486:
1.480 www 5487: sub recunique {
5488: my $fucourseid=shift;
5489: my $unique;
1.620 albertel 5490: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
5491: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 5492: } else {
5493: $unique=$perlvar{'lonReceipt'};
5494: }
5495: return unpack("%32C*",$unique);
5496: }
5497:
5498: sub recprefix {
5499: my $fucourseid=shift;
5500: my $prefix;
1.620 albertel 5501: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
5502: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 5503: } else {
5504: $prefix=$perlvar{'lonHostID'};
5505: }
5506: return unpack("%32C*",$prefix);
5507: }
5508:
1.76 www 5509: sub ireceipt {
1.474 albertel 5510: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.76 www 5511: my $cuname=unpack("%32C*",$funame);
5512: my $cudom=unpack("%32C*",$fudom);
5513: my $cucourseid=unpack("%32C*",$fucourseid);
5514: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 5515: my $cunique=&recunique($fucourseid);
1.474 albertel 5516: my $cpart=unpack("%32S*",$part);
1.480 www 5517: my $return =&recprefix($fucourseid).'-';
1.620 albertel 5518: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
5519: $env{'request.state'} eq 'construct') {
1.474 albertel 5520: &Apache::lonxml::debug("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname).
5521: " and ".($cpart%$cudom));
5522:
5523: $return.= ($cunique%$cuname+
5524: $cunique%$cudom+
5525: $cusymb%$cuname+
5526: $cusymb%$cudom+
5527: $cucourseid%$cuname+
5528: $cucourseid%$cudom+
5529: $cpart%$cuname+
5530: $cpart%$cudom);
5531: } else {
5532: $return.= ($cunique%$cuname+
5533: $cunique%$cudom+
5534: $cusymb%$cuname+
5535: $cusymb%$cudom+
5536: $cucourseid%$cuname+
5537: $cucourseid%$cudom);
5538: }
5539: return $return;
1.76 www 5540: }
5541:
5542: sub receipt {
1.474 albertel 5543: my ($part)=@_;
5544: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
5545: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 5546: }
1.260 ng 5547:
1.36 albertel 5548: # ------------------------------------------------------------ Serves up a file
1.472 albertel 5549: # returns either the contents of the file or
5550: # -1 if the file doesn't exist
1.481 raeburn 5551: #
5552: # if the target is a file that was uploaded via DOCS,
5553: # a check will be made to see if a current copy exists on the local server,
5554: # if it does this will be served, otherwise a copy will be retrieved from
5555: # the home server for the course and stored in /home/httpd/html/userfiles on
5556: # the local server.
1.472 albertel 5557:
1.36 albertel 5558: sub getfile {
1.538 albertel 5559: my ($file) = @_;
1.609 banghart 5560: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 5561: &repcopy($file);
5562: return &readfile($file);
5563: }
5564:
5565: sub repcopy_userfile {
5566: my ($file)=@_;
1.609 banghart 5567: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 5568: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 5569: my ($cdom,$cnum,$filename) =
5570: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+([^/]+)/+([^/]+)/+(.*)|);
5571: my ($info,$rtncode);
5572: my $uri="/uploaded/$cdom/$cnum/$filename";
5573: if (-e "$file") {
5574: my @fileinfo = stat($file);
5575: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5576: if ($lwpresp ne 'ok') {
5577: if ($rtncode eq '404') {
1.538 albertel 5578: unlink($file);
1.482 albertel 5579: }
1.517 albertel 5580: #my $ua=new LWP::UserAgent;
1.538 albertel 5581: #my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 5582: #my $response=$ua->request($request);
5583: #if ($response->is_success()) {
5584: # return $response->content;
5585: # } else {
5586: # return -1;
5587: # }
1.482 albertel 5588: return -1;
5589: }
5590: if ($info < $fileinfo[9]) {
1.607 raeburn 5591: return 'ok';
1.482 albertel 5592: }
5593: $info = '';
1.538 albertel 5594: $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5595: if ($lwpresp ne 'ok') {
5596: return -1;
5597: }
5598: } else {
1.538 albertel 5599: my $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 5600: if ($lwpresp ne 'ok') {
1.517 albertel 5601: my $ua=new LWP::UserAgent;
1.538 albertel 5602: my $request=new HTTP::Request('GET',&tokenwrapper($uri));
1.517 albertel 5603: my $response=$ua->request($request);
5604: if ($response->is_success()) {
1.538 albertel 5605: $info=$response->content;
1.517 albertel 5606: } else {
5607: return -1;
5608: }
1.482 albertel 5609: }
5610: my @parts = ($cdom,$cnum);
5611: if ($filename =~ m|^(.+)/[^/]+$|) {
5612: push @parts, split(/\//,$1);
1.518 albertel 5613: }
1.538 albertel 5614: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
1.482 albertel 5615: foreach my $part (@parts) {
5616: $path .= '/'.$part;
5617: if (!-e $path) {
5618: mkdir($path,0770);
5619: }
5620: }
5621: }
1.538 albertel 5622: open(FILE,">$file");
1.482 albertel 5623: print FILE $info;
5624: close(FILE);
1.607 raeburn 5625: return 'ok';
1.481 raeburn 5626: }
5627:
1.517 albertel 5628: sub tokenwrapper {
5629: my $uri=shift;
1.552 albertel 5630: $uri=~s|^http\://([^/]+)||;
5631: $uri=~s|^/||;
1.620 albertel 5632: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 5633: my $token=$1;
1.552 albertel 5634: my (undef,$udom,$uname,$file)=split('/',$uri,4);
5635: if ($udom && $uname && $file) {
5636: $file=~s|(\?\.*)*$||;
1.620 albertel 5637: &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
1.552 albertel 5638: return 'http://'.$hostname{ &homeserver($uname,$udom)}.'/'.$uri.
1.517 albertel 5639: (($uri=~/\?/)?'&':'?').'token='.$token.
5640: '&tokenissued='.$perlvar{'lonHostID'};
5641: } else {
5642: return '/adm/notfound.html';
5643: }
5644: }
5645:
1.481 raeburn 5646: sub getuploaded {
5647: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
5648: $uri=~s/^\///;
5649: $uri = 'http://'.$hostname{ &homeserver($cnum,$cdom)}.'/raw/'.$uri;
5650: my $ua=new LWP::UserAgent;
5651: my $request=new HTTP::Request($reqtype,$uri);
5652: my $response=$ua->request($request);
5653: $$rtncode = $response->code;
1.482 albertel 5654: if (! $response->is_success()) {
5655: return 'failed';
5656: }
5657: if ($reqtype eq 'HEAD') {
1.486 www 5658: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 5659: } elsif ($reqtype eq 'GET') {
5660: $$info = $response->content;
1.472 albertel 5661: }
1.482 albertel 5662: return 'ok';
1.36 albertel 5663: }
5664:
1.481 raeburn 5665: sub readfile {
5666: my $file = shift;
5667: if ( (! -e $file ) || ($file eq '') ) { return -1; };
5668: my $fh;
5669: open($fh,"<$file");
5670: my $a='';
5671: while (<$fh>) { $a .=$_; }
5672: return $a;
5673: }
5674:
1.36 albertel 5675: sub filelocation {
1.590 banghart 5676: my ($dir,$file) = @_;
5677: my $location;
5678: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
5679: if ($file=~m:^/~:) { # is a contruction space reference
5680: $location = $file;
5681: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.649 albertel 5682: } elsif ($file=~m:^/home/[^/]*/public_html/:) {
5683: # is a correct contruction space reference
5684: $location = $file;
1.609 banghart 5685: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 5686: my ($udom,$uname,$filename)=
1.609 banghart 5687: ($file=~m -^/+(?:uploaded|editupload)/+([^/]+)/+([^/]+)/+(.*)$-);
1.590 banghart 5688: my $home=&homeserver($uname,$udom);
5689: my $is_me=0;
5690: my @ids=¤t_machine_ids();
5691: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
5692: if ($is_me) {
5693: $location=&Apache::loncommon::propath($udom,$uname).
5694: '/userfiles/'.$filename;
5695: } else {
5696: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
5697: $udom.'/'.$uname.'/'.$filename;
5698: }
5699: } else {
5700: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
5701: $file=~s:^/res/:/:;
5702: if ( !( $file =~ m:^/:) ) {
5703: $location = $dir. '/'.$file;
5704: } else {
5705: $location = '/home/httpd/html/res'.$file;
5706: }
1.59 albertel 5707: }
1.590 banghart 5708: $location=~s://+:/:g; # remove duplicate /
5709: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
5710: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
5711: return $location;
1.46 www 5712: }
1.36 albertel 5713:
1.46 www 5714: sub hreflocation {
5715: my ($dir,$file)=@_;
1.460 albertel 5716: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
5717: my $finalpath=filelocation($dir,$file);
5718: $finalpath=~s-^/home/httpd/html--;
1.462 albertel 5719: $finalpath=~s-^/home/(\w+)/public_html/-/~$1/-;
1.460 albertel 5720: return $finalpath;
5721: } elsif ($file=~m-^/home-) {
5722: $file=~s-^/home/httpd/html--;
1.462 albertel 5723: $file=~s-^/home/(\w+)/public_html/-/~$1/-;
1.460 albertel 5724: return $file;
1.46 www 5725: }
1.462 albertel 5726: return $file;
1.465 albertel 5727: }
5728:
5729: sub current_machine_domains {
5730: my $hostname=$hostname{$perlvar{'lonHostID'}};
5731: my @domains;
5732: while( my($id, $name) = each(%hostname)) {
1.467 matthew 5733: # &logthis("-$id-$name-$hostname-");
1.465 albertel 5734: if ($hostname eq $name) {
5735: push(@domains,$hostdom{$id});
5736: }
5737: }
5738: return @domains;
5739: }
5740:
5741: sub current_machine_ids {
5742: my $hostname=$hostname{$perlvar{'lonHostID'}};
5743: my @ids;
5744: while( my($id, $name) = each(%hostname)) {
1.467 matthew 5745: # &logthis("-$id-$name-$hostname-");
1.465 albertel 5746: if ($hostname eq $name) {
5747: push(@ids,$id);
5748: }
5749: }
5750: return @ids;
1.31 www 5751: }
5752:
5753: # ------------------------------------------------------------- Declutters URLs
5754:
5755: sub declutter {
5756: my $thisfn=shift;
1.569 albertel 5757: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 5758: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 5759: $thisfn=~s/^\///;
5760: $thisfn=~s/^res\///;
1.235 www 5761: $thisfn=~s/\?.+$//;
1.268 www 5762: return $thisfn;
5763: }
5764:
5765: # ------------------------------------------------------------- Clutter up URLs
5766:
5767: sub clutter {
5768: my $thisfn='/'.&declutter(shift);
1.609 banghart 5769: unless ($thisfn=~/^\/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)\//) {
1.270 www 5770: $thisfn='/res'.$thisfn;
5771: }
1.31 www 5772: return $thisfn;
1.12 www 5773: }
5774:
1.557 albertel 5775: sub freeze_escape {
5776: my ($value)=@_;
5777: if (ref($value)) {
5778: $value=&nfreeze($value);
5779: return '__FROZEN__'.&escape($value);
5780: }
5781: return &escape($value);
5782: }
5783:
1.12 www 5784: # -------------------------------------------------------- Escape Special Chars
5785:
5786: sub escape {
5787: my $str=shift;
5788: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
5789: return $str;
5790: }
5791:
5792: # ----------------------------------------------------- Un-Escape Special Chars
5793:
5794: sub unescape {
5795: my $str=shift;
5796: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
5797: return $str;
5798: }
1.11 www 5799:
1.557 albertel 5800: sub thaw_unescape {
5801: my ($value)=@_;
5802: if ($value =~ /^__FROZEN__/) {
5803: substr($value,0,10,undef);
5804: $value=&unescape($value);
5805: return &thaw($value);
5806: }
5807: return &unescape($value);
5808: }
5809:
1.415 albertel 5810: sub mod_perl_version {
1.580 albertel 5811: return 1;
1.415 albertel 5812: if (defined($perlvar{'MODPERL2'})) {
5813: return 2;
5814: }
1.436 albertel 5815: }
5816:
5817: sub correct_line_ends {
5818: my ($result)=@_;
5819: $$result =~s/\r\n/\n/mg;
5820: $$result =~s/\r/\n/mg;
1.415 albertel 5821: }
1.1 albertel 5822: # ================================================================ Main Program
5823:
1.184 www 5824: sub goodbye {
1.204 albertel 5825: &logthis("Starting Shut down");
1.443 albertel 5826: #not converted to using infrastruture and probably shouldn't be
1.599 albertel 5827: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&freeze(\%badServerCache))));
1.443 albertel 5828: #converted
1.599 albertel 5829: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
5830: &logthis(sprintf("%-20s is %s",'%homecache',length(&freeze(\%homecache))));
5831: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&freeze(\%titlecache))));
5832: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&freeze(\%courseresdatacache))));
1.425 albertel 5833: #1.1 only
1.599 albertel 5834: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&freeze(\%userresdatacache))));
5835: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&freeze(\%getsectioncache))));
5836: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&freeze(\%courseresversioncache))));
5837: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&freeze(\%resversioncache))));
5838: &logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
5839: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
5840: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 5841: &flushcourselogs();
5842: &logthis("Shutting down");
1.362 albertel 5843: return DONE;
1.184 www 5844: }
5845:
1.179 www 5846: BEGIN {
1.228 harris41 5847: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
1.195 www 5848: unless ($readit) {
1.217 harris41 5849: {
1.581 matthew 5850: # FIXME: Use LONCAPA::Configuration::read_conf here and omit next block
1.448 albertel 5851: open(my $config,"</etc/httpd/conf/loncapa.conf");
1.217 harris41 5852:
5853: while (my $configline=<$config>) {
1.484 albertel 5854: if ($configline=~/\S/ && $configline =~ /^[^\#]*PerlSetVar/) {
1.1 albertel 5855: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
1.8 www 5856: chomp($varvalue);
1.1 albertel 5857: $perlvar{$varname}=$varvalue;
5858: }
5859: }
1.448 albertel 5860: close($config);
1.1 albertel 5861: }
1.227 harris41 5862: {
1.448 albertel 5863: open(my $config,"</etc/httpd/conf/loncapa_apache.conf");
1.227 harris41 5864:
5865: while (my $configline=<$config>) {
5866: if ($configline =~ /^[^\#]*PerlSetVar/) {
5867: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
5868: chomp($varvalue);
5869: $perlvar{$varname}=$varvalue;
5870: }
5871: }
1.448 albertel 5872: close($config);
1.227 harris41 5873: }
1.1 albertel 5874:
1.327 albertel 5875: # ------------------------------------------------------------ Read domain file
5876: {
5877: %domaindescription = ();
5878: %domain_auth_def = ();
5879: %domain_auth_arg_def = ();
1.448 albertel 5880: my $fh;
5881: if (open($fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/domain.tab')) {
1.327 albertel 5882: while (<$fh>) {
1.390 matthew 5883: next if (/^(\#|\s*$)/);
5884: # next if /^\#/;
1.327 albertel 5885: chomp;
1.403 www 5886: my ($domain, $domain_description, $def_auth, $def_auth_arg,
5887: $def_lang, $city, $longi, $lati) = split(/:/,$_);
5888: $domain_auth_def{$domain}=$def_auth;
1.327 albertel 5889: $domain_auth_arg_def{$domain}=$def_auth_arg;
1.403 www 5890: $domaindescription{$domain}=$domain_description;
5891: $domain_lang_def{$domain}=$def_lang;
5892: $domain_city{$domain}=$city;
5893: $domain_longi{$domain}=$longi;
5894: $domain_lati{$domain}=$lati;
5895:
1.448 albertel 5896: # &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}");
1.327 albertel 5897: # &logthis("Domain.tab: $domain ".$domaindescription{$domain} );
1.448 albertel 5898: }
1.327 albertel 5899: }
1.448 albertel 5900: close ($fh);
1.327 albertel 5901: }
5902:
5903:
1.1 albertel 5904: # ------------------------------------------------------------- Read hosts file
5905: {
1.448 albertel 5906: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
1.1 albertel 5907:
5908: while (my $configline=<$config>) {
1.303 matthew 5909: next if ($configline =~ /^(\#|\s*$)/);
1.154 www 5910: chomp($configline);
1.595 albertel 5911: my ($id,$domain,$role,$name)=split(/:/,$configline);
1.597 albertel 5912: $name=~s/\s//g;
1.595 albertel 5913: if ($id && $domain && $role && $name) {
1.252 albertel 5914: $hostname{$id}=$name;
5915: $hostdom{$id}=$domain;
5916: if ($role eq 'library') { $libserv{$id}=$name; }
1.245 www 5917: }
1.1 albertel 5918: }
1.448 albertel 5919: close($config);
1.619 albertel 5920: # FIXME: dev server don't want this, production servers _do_ want this
1.654 albertel 5921: #&get_iphost();
1.1 albertel 5922: }
5923:
1.598 albertel 5924: sub get_iphost {
5925: if (%iphost) { return %iphost; }
1.653 albertel 5926: my %name_to_ip;
1.598 albertel 5927: foreach my $id (keys(%hostname)) {
5928: my $name=$hostname{$id};
1.653 albertel 5929: my $ip;
5930: if (!exists($name_to_ip{$name})) {
5931: $ip = gethostbyname($name);
5932: if (!$ip || length($ip) ne 4) {
5933: &logthis("Skipping host $id name $name no IP found\n");
5934: next;
5935: }
5936: $ip=inet_ntoa($ip);
5937: $name_to_ip{$name} = $ip;
5938: } else {
5939: $ip = $name_to_ip{$name};
1.598 albertel 5940: }
5941: push(@{$iphost{$ip}},$id);
5942: }
5943: return %iphost;
5944: }
5945:
1.1 albertel 5946: # ------------------------------------------------------ Read spare server file
5947: {
1.448 albertel 5948: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 5949:
5950: while (my $configline=<$config>) {
5951: chomp($configline);
1.284 matthew 5952: if ($configline) {
1.1 albertel 5953: $spareid{$configline}=1;
5954: }
5955: }
1.448 albertel 5956: close($config);
1.1 albertel 5957: }
1.11 www 5958: # ------------------------------------------------------------ Read permissions
5959: {
1.448 albertel 5960: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 5961:
5962: while (my $configline=<$config>) {
1.448 albertel 5963: chomp($configline);
5964: if ($configline) {
5965: my ($role,$perm)=split(/ /,$configline);
5966: if ($perm ne '') { $pr{$role}=$perm; }
5967: }
1.11 www 5968: }
1.448 albertel 5969: close($config);
1.11 www 5970: }
5971:
5972: # -------------------------------------------- Read plain texts for permissions
5973: {
1.448 albertel 5974: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 5975:
5976: while (my $configline=<$config>) {
1.448 albertel 5977: chomp($configline);
5978: if ($configline) {
5979: my ($short,$plain)=split(/:/,$configline);
5980: if ($plain ne '') { $prp{$short}=$plain; }
5981: }
1.135 www 5982: }
1.448 albertel 5983: close($config);
1.135 www 5984: }
5985:
5986: # ---------------------------------------------------------- Read package table
5987: {
1.448 albertel 5988: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 5989:
5990: while (my $configline=<$config>) {
1.483 albertel 5991: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 5992: chomp($configline);
5993: my ($short,$plain)=split(/:/,$configline);
5994: my ($pack,$name)=split(/\&/,$short);
5995: if ($plain ne '') {
5996: $packagetab{$pack.'&'.$name.'&name'}=$name;
5997: $packagetab{$short}=$plain;
5998: }
1.11 www 5999: }
1.448 albertel 6000: close($config);
1.329 matthew 6001: }
6002:
6003: # ------------- set up temporary directory
6004: {
6005: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
6006:
1.11 www 6007: }
6008:
1.599 albertel 6009: $memcache=new Cache::Memcached({'servers'=>['127.0.0.1:11211']});
1.185 www 6010:
1.281 www 6011: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 6012: $dumpcount=0;
1.22 www 6013:
1.163 harris41 6014: &logtouch();
1.12 www 6015: &logthis('<font color=yellow>INFO: Read configuration</font>');
1.195 www 6016: $readit=1;
1.564 albertel 6017: {
6018: use integer;
6019: my $test=(2**32)+1;
1.568 albertel 6020: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 6021: &logthis(" Detected 64bit platform ($_64bit)");
6022: }
1.195 www 6023: }
1.1 albertel 6024: }
1.179 www 6025:
1.1 albertel 6026: 1;
1.191 harris41 6027: __END__
6028:
1.243 albertel 6029: =pod
6030:
1.191 harris41 6031: =head1 NAME
6032:
1.243 albertel 6033: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 6034:
6035: =head1 SYNOPSIS
6036:
1.243 albertel 6037: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 6038:
6039: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
6040:
1.243 albertel 6041: Common parameters:
6042:
6043: =over 4
6044:
6045: =item *
6046:
6047: $uname : an internal username (if $cname expecting a course Id specifically)
6048:
6049: =item *
6050:
6051: $udom : a domain (if $cdom expecting a course's domain specifically)
6052:
6053: =item *
6054:
6055: $symb : a resource instance identifier
6056:
6057: =item *
6058:
6059: $namespace : the name of a .db file that contains the data needed or
6060: being set.
6061:
6062: =back
6063:
1.394 bowersj2 6064: =head1 OVERVIEW
1.191 harris41 6065:
1.394 bowersj2 6066: lonnet provides subroutines which interact with the
6067: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
6068: about classes, users, and resources.
1.243 albertel 6069:
6070: For many of these objects you can also use this to store data about
6071: them or modify them in various ways.
1.191 harris41 6072:
1.394 bowersj2 6073: =head2 Symbs
1.191 harris41 6074:
1.394 bowersj2 6075: To identify a specific instance of a resource, LON-CAPA uses symbols
6076: or "symbs"X<symb>. These identifiers are built from the URL of the
6077: map, the resource number of the resource in the map, and the URL of
6078: the resource itself. The latter is somewhat redundant, but might help
6079: if maps change.
6080:
6081: An example is
6082:
6083: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
6084:
6085: The respective map entry is
6086:
6087: <resource id="19" src="/res/msu/korte/tests/part12.problem"
6088: title="Problem 2">
6089: </resource>
6090:
6091: Symbs are used by the random number generator, as well as to store and
6092: restore data specific to a certain instance of for example a problem.
6093:
6094: =head2 Storing And Retrieving Data
6095:
6096: X<store()>X<cstore()>X<restore()>Three of the most important functions
6097: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
6098: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
6099: is is the non-critical message twin of cstore. These functions are for
6100: handlers to store a perl hash to a user's permanent data space in an
6101: easy manner, and to retrieve it again on another call. It is expected
6102: that a handler would use this once at the beginning to retrieve data,
6103: and then again once at the end to send only the new data back.
6104:
6105: The data is stored in the user's data directory on the user's
6106: homeserver under the ID of the course.
6107:
6108: The hash that is returned by restore will have all of the previous
6109: value for all of the elements of the hash.
6110:
6111: Example:
6112:
6113: #creating a hash
6114: my %hash;
6115: $hash{'foo'}='bar';
6116:
6117: #storing it
6118: &Apache::lonnet::cstore(\%hash);
6119:
6120: #changing a value
6121: $hash{'foo'}='notbar';
6122:
6123: #adding a new value
6124: $hash{'bar'}='foo';
6125: &Apache::lonnet::cstore(\%hash);
6126:
6127: #retrieving the hash
6128: my %history=&Apache::lonnet::restore();
6129:
6130: #print the hash
6131: foreach my $key (sort(keys(%history))) {
6132: print("\%history{$key} = $history{$key}");
6133: }
6134:
6135: Will print out:
1.191 harris41 6136:
1.394 bowersj2 6137: %history{1:foo} = bar
6138: %history{1:keys} = foo:timestamp
6139: %history{1:timestamp} = 990455579
6140: %history{2:bar} = foo
6141: %history{2:foo} = notbar
6142: %history{2:keys} = foo:bar:timestamp
6143: %history{2:timestamp} = 990455580
6144: %history{bar} = foo
6145: %history{foo} = notbar
6146: %history{timestamp} = 990455580
6147: %history{version} = 2
6148:
6149: Note that the special hash entries C<keys>, C<version> and
6150: C<timestamp> were added to the hash. C<version> will be equal to the
6151: total number of versions of the data that have been stored. The
6152: C<timestamp> attribute will be the UNIX time the hash was
6153: stored. C<keys> is available in every historical section to list which
6154: keys were added or changed at a specific historical revision of a
6155: hash.
6156:
6157: B<Warning>: do not store the hash that restore returns directly. This
6158: will cause a mess since it will restore the historical keys as if the
6159: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 6160:
1.394 bowersj2 6161: Calling convention:
1.191 harris41 6162:
1.394 bowersj2 6163: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
6164: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 6165:
1.394 bowersj2 6166: For more detailed information, see lonnet specific documentation.
1.191 harris41 6167:
1.394 bowersj2 6168: =head1 RETURN MESSAGES
1.191 harris41 6169:
1.394 bowersj2 6170: =over 4
1.191 harris41 6171:
1.394 bowersj2 6172: =item * B<con_lost>: unable to contact remote host
1.191 harris41 6173:
1.394 bowersj2 6174: =item * B<con_delayed>: unable to contact remote host, message will be delivered
6175: when the connection is brought back up
1.191 harris41 6176:
1.394 bowersj2 6177: =item * B<con_failed>: unable to contact remote host and unable to save message
6178: for later delivery
1.191 harris41 6179:
1.394 bowersj2 6180: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 6181:
1.394 bowersj2 6182: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 6183: that was requested
1.191 harris41 6184:
1.243 albertel 6185: =back
1.191 harris41 6186:
1.243 albertel 6187: =head1 PUBLIC SUBROUTINES
1.191 harris41 6188:
1.243 albertel 6189: =head2 Session Environment Functions
1.191 harris41 6190:
1.243 albertel 6191: =over 4
1.191 harris41 6192:
1.394 bowersj2 6193: =item *
6194: X<appenv()>
6195: B<appenv(%hash)>: the value of %hash is written to
6196: the user envirnoment file, and will be restored for each access this
1.620 albertel 6197: user makes during this session, also modifies the %env for the current
1.394 bowersj2 6198: process
1.191 harris41 6199:
6200: =item *
1.394 bowersj2 6201: X<delenv()>
6202: B<delenv($regexp)>: removes all items from the session
6203: environment file that matches the regular expression in $regexp. The
1.620 albertel 6204: values are also delted from the current processes %env.
1.191 harris41 6205:
1.243 albertel 6206: =back
6207:
6208: =head2 User Information
1.191 harris41 6209:
1.243 albertel 6210: =over 4
1.191 harris41 6211:
6212: =item *
1.394 bowersj2 6213: X<queryauthenticate()>
6214: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 6215: authentication scheme
6216:
6217: =item *
1.394 bowersj2 6218: X<authenticate()>
6219: B<authenticate($uname,$upass,$udom)>: try to
6220: authenticate user from domain's lib servers (first use the current
6221: one). C<$upass> should be the users password.
1.191 harris41 6222:
6223: =item *
1.394 bowersj2 6224: X<homeserver()>
6225: B<homeserver($uname,$udom)>: find the server which has
6226: the user's directory and files (there must be only one), this caches
6227: the answer, and also caches if there is a borken connection.
1.191 harris41 6228:
6229: =item *
1.394 bowersj2 6230: X<idget()>
6231: B<idget($udom,@ids)>: find the usernames behind a list of IDs
6232: (IDs are a unique resource in a domain, there must be only 1 ID per
6233: username, and only 1 username per ID in a specific domain) (returns
6234: hash: id=>name,id=>name)
1.191 harris41 6235:
6236: =item *
1.394 bowersj2 6237: X<idrget()>
6238: B<idrget($udom,@unames)>: find the IDs behind a list of
6239: usernames (returns hash: name=>id,name=>id)
1.191 harris41 6240:
6241: =item *
1.394 bowersj2 6242: X<idput()>
6243: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 6244:
6245: =item *
1.394 bowersj2 6246: X<rolesinit()>
6247: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 6248:
6249: =item *
1.551 albertel 6250: X<getsection()>
6251: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 6252: course $cname, return section name/number or '' for "not in course"
6253: and '-1' for "no section"
6254:
6255: =item *
1.394 bowersj2 6256: X<userenvironment()>
6257: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 6258: passed in @what from the requested user's environment, returns a hash
6259:
6260: =back
6261:
6262: =head2 User Roles
6263:
6264: =over 4
6265:
6266: =item *
6267:
6268: allowed($priv,$uri) : check for a user privilege; returns codes for allowed
6269: actions
6270: F: full access
6271: U,I,K: authentication modes (cxx only)
6272: '': forbidden
6273: 1: user needs to choose course
6274: 2: browse allowed
6275:
6276: =item *
6277:
6278: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
6279: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
6280: and course level
6281:
6282: =item *
6283:
6284: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
6285: explanation of a user role term
6286:
6287: =back
6288:
6289: =head2 User Modification
6290:
6291: =over 4
6292:
6293: =item *
6294:
6295: assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a
6296: user for the level given by URL. Optional start and end dates (leave empty
6297: string or zero for "no date")
1.191 harris41 6298:
6299: =item *
6300:
1.243 albertel 6301: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
6302: change a users, password, possible return values are: ok,
6303: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
6304: refused
1.191 harris41 6305:
6306: =item *
6307:
1.243 albertel 6308: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 6309:
6310: =item *
6311:
1.243 albertel 6312: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) :
6313: modify user
1.191 harris41 6314:
6315: =item *
6316:
1.286 matthew 6317: modifystudent
6318:
6319: modify a students enrollment and identification information.
6320: The course id is resolved based on the current users environment.
6321: This means the envoking user must be a course coordinator or otherwise
6322: associated with a course.
6323:
1.297 matthew 6324: This call is essentially a wrapper for lonnet::modifyuser and
6325: lonnet::modify_student_enrollment
1.286 matthew 6326:
6327: Inputs:
6328:
6329: =over 4
6330:
6331: =item B<$udom> Students loncapa domain
6332:
6333: =item B<$uname> Students loncapa login name
6334:
6335: =item B<$uid> Students id/student number
6336:
6337: =item B<$umode> Students authentication mode
6338:
6339: =item B<$upass> Students password
6340:
6341: =item B<$first> Students first name
6342:
6343: =item B<$middle> Students middle name
6344:
6345: =item B<$last> Students last name
6346:
6347: =item B<$gene> Students generation
6348:
6349: =item B<$usec> Students section in course
6350:
6351: =item B<$end> Unix time of the roles expiration
6352:
6353: =item B<$start> Unix time of the roles start date
6354:
6355: =item B<$forceid> If defined, allow $uid to be changed
6356:
6357: =item B<$desiredhome> server to use as home server for student
6358:
6359: =back
1.297 matthew 6360:
6361: =item *
6362:
6363: modify_student_enrollment
6364:
6365: Change a students enrollment status in a class. The environment variable
6366: 'role.request.course' must be defined for this function to proceed.
6367:
6368: Inputs:
6369:
6370: =over 4
6371:
6372: =item $udom, students domain
6373:
6374: =item $uname, students name
6375:
6376: =item $uid, students user id
6377:
6378: =item $first, students first name
6379:
6380: =item $middle
6381:
6382: =item $last
6383:
6384: =item $gene
6385:
6386: =item $usec
6387:
6388: =item $end
6389:
6390: =item $start
6391:
6392: =back
6393:
1.191 harris41 6394:
6395: =item *
6396:
1.243 albertel 6397: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
6398: custom role; give a custom role to a user for the level given by URL. Specify
6399: name and domain of role author, and role name
1.191 harris41 6400:
6401: =item *
6402:
1.243 albertel 6403: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 6404:
6405: =item *
6406:
1.243 albertel 6407: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
6408:
6409: =back
6410:
6411: =head2 Course Infomation
6412:
6413: =over 4
1.191 harris41 6414:
6415: =item *
6416:
1.631 albertel 6417: coursedescription($courseid) : returns a hash of information about the
6418: specified course id, including all environment settings for the
6419: course, the description of the course will be in the hash under the
6420: key 'description'
1.191 harris41 6421:
6422: =item *
6423:
1.624 albertel 6424: resdata($name,$domain,$type,@which) : request for current parameter
6425: setting for a specific $type, where $type is either 'course' or 'user',
6426: @what should be a list of parameters to ask about. This routine caches
6427: answers for 5 minutes.
1.243 albertel 6428:
6429: =back
6430:
6431: =head2 Course Modification
6432:
6433: =over 4
1.191 harris41 6434:
6435: =item *
6436:
1.243 albertel 6437: writecoursepref($courseid,%prefs) : write preferences (environment
6438: database) for a course
1.191 harris41 6439:
6440: =item *
6441:
1.243 albertel 6442: createcourse($udom,$description,$url) : make/modify course
6443:
6444: =back
6445:
6446: =head2 Resource Subroutines
6447:
6448: =over 4
1.191 harris41 6449:
6450: =item *
6451:
1.243 albertel 6452: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 6453:
6454: =item *
6455:
1.243 albertel 6456: repcopy($filename) : subscribes to the requested file, and attempts to
6457: replicate from the owning library server, Might return
1.607 raeburn 6458: 'unavailable', 'not_found', 'forbidden', 'ok', or
6459: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 6460: resource. Expects the local filesystem pathname
6461: (/home/httpd/html/res/....)
6462:
6463: =back
6464:
6465: =head2 Resource Information
6466:
6467: =over 4
1.191 harris41 6468:
6469: =item *
6470:
1.243 albertel 6471: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
6472: a vairety of different possible values, $varname should be a request
6473: string, and the other parameters can be used to specify who and what
6474: one is asking about.
6475:
6476: Possible values for $varname are environment.lastname (or other item
6477: from the envirnment hash), user.name (or someother aspect about the
6478: user), resource.0.maxtries (or some other part and parameter of a
6479: resource)
1.204 albertel 6480:
6481: =item *
6482:
1.243 albertel 6483: directcondval($number) : get current value of a condition; reads from a state
6484: string
1.204 albertel 6485:
6486: =item *
6487:
1.243 albertel 6488: condval($condidx) : value of condition index based on state
1.204 albertel 6489:
6490: =item *
6491:
1.243 albertel 6492: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
6493: resource's metadata, $what should be either a specific key, or either
6494: 'keys' (to get a list of possible keys) or 'packages' to get a list of
6495: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
6496:
6497: this function automatically caches all requests
1.191 harris41 6498:
6499: =item *
6500:
1.243 albertel 6501: metadata_query($query,$custom,$customshow) : make a metadata query against the
6502: network of library servers; returns file handle of where SQL and regex results
6503: will be stored for query
1.191 harris41 6504:
6505: =item *
6506:
1.243 albertel 6507: symbread($filename) : return symbolic list entry (filename argument optional);
6508: returns the data handle
1.191 harris41 6509:
6510: =item *
6511:
1.243 albertel 6512: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 6513: a possible symb for the URL in $thisfn, and if is an encryypted
6514: resource that the user accessed using /enc/ returns a 1 on success, 0
6515: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 6516: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 6517:
1.191 harris41 6518:
6519: =item *
6520:
1.243 albertel 6521: symbclean($symb) : removes versions numbers from a symb, returns the
6522: cleaned symb
1.191 harris41 6523:
6524: =item *
6525:
1.243 albertel 6526: is_on_map($uri) : checks if the $uri is somewhere on the current
6527: course map, user must be in a course for it to work.
1.191 harris41 6528:
6529: =item *
6530:
1.243 albertel 6531: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 6532:
6533: =item *
6534:
1.243 albertel 6535: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
6536: a random seed, all arguments are optional, if they aren't sent it uses the
6537: environment to derive them. Note: if symb isn't sent and it can't get one
6538: from &symbread it will use the current time as its return value
1.191 harris41 6539:
6540: =item *
6541:
1.243 albertel 6542: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
6543: unfakeable, receipt
1.191 harris41 6544:
6545: =item *
6546:
1.620 albertel 6547: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 6548:
6549: =item *
6550:
1.243 albertel 6551: countacc($url) : count the number of accesses to a given URL
1.191 harris41 6552:
6553: =item *
6554:
1.243 albertel 6555: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 6556:
6557: =item *
6558:
1.243 albertel 6559: checkin($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 $tcrsid)
1.191 harris41 6560:
6561: =item *
6562:
1.243 albertel 6563: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 6564:
6565: =item *
6566:
1.243 albertel 6567: devalidate($symb) : devalidate temporary spreadsheet calculations,
6568: forcing spreadsheet to reevaluate the resource scores next time.
6569:
6570: =back
6571:
6572: =head2 Storing/Retreiving Data
6573:
6574: =over 4
1.191 harris41 6575:
6576: =item *
6577:
1.243 albertel 6578: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
6579: for this url; hashref needs to be given and should be a \%hashname; the
6580: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 6581: be derived from the env
1.191 harris41 6582:
6583: =item *
6584:
1.243 albertel 6585: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
6586: uses critical subroutine
1.191 harris41 6587:
6588: =item *
6589:
1.243 albertel 6590: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
6591: all args are optional
1.191 harris41 6592:
6593: =item *
6594:
1.243 albertel 6595: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
6596: works very similar to store/cstore, but all data is stored in a
6597: temporary location and can be reset using tmpreset, $storehash should
6598: be a hash reference, returns nothing on success
1.191 harris41 6599:
6600: =item *
6601:
1.243 albertel 6602: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
6603: similar to restore, but all data is stored in a temporary location and
6604: can be reset using tmpreset. Returns a hash of values on success,
6605: error string otherwise.
1.191 harris41 6606:
6607: =item *
6608:
1.243 albertel 6609: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
6610: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 6611:
6612: =item *
6613:
1.243 albertel 6614: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
6615: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 6616:
6617: =item *
6618:
1.243 albertel 6619: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
6620: namesp ($udom and $uname are optional)
1.191 harris41 6621:
6622: =item *
6623:
1.243 albertel 6624: dump($namespace,$udom,$uname,$regexp) :
6625: dumps the complete (or key matching regexp) namespace into a hash
6626: ($udom, $uname and $regexp are optional)
1.449 matthew 6627:
6628: =item *
6629:
6630: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
6631: $store can be a scalar, an array reference, or if the amount to be
6632: incremented is > 1, a hash reference.
6633:
6634: ($udom and $uname are optional)
1.191 harris41 6635:
6636: =item *
6637:
1.243 albertel 6638: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
6639: ($udom and $uname are optional)
1.191 harris41 6640:
6641: =item *
6642:
1.524 raeburn 6643: putstore($namespace,$storehash,$udomain,$uname) : stores hash in namesp
6644: keys used in storehash include version information (e.g., 1:$symb:message etc.) as
6645: used in records written by &store and retrieved by &restore. This function
6646: was created for use in editing discussion posts, without incrementing the
6647: version number included in the key for a particular post. The colon
6648: separated list of attribute names (e.g., the value associated with the key
6649: 1:keys:$symb) is also generated and passed in the ampersand separated
6650: items sent to lonnet::reply().
6651:
6652: =item *
6653:
1.243 albertel 6654: cput($namespace,$storehash,$udom,$uname) : critical put
6655: ($udom and $uname are optional)
1.191 harris41 6656:
6657: =item *
6658:
1.243 albertel 6659: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
6660: reference filled in from namesp (encrypts the return communication)
6661: ($udom and $uname are optional)
1.191 harris41 6662:
6663: =item *
6664:
1.243 albertel 6665: log($udom,$name,$home,$message) : write to permanent log for user; use
6666: critical subroutine
6667:
6668: =back
6669:
6670: =head2 Network Status Functions
6671:
6672: =over 4
1.191 harris41 6673:
6674: =item *
6675:
6676: dirlist($uri) : return directory list based on URI
6677:
6678: =item *
6679:
1.243 albertel 6680: spareserver() : find server with least workload from spare.tab
6681:
6682: =back
6683:
6684: =head2 Apache Request
6685:
6686: =over 4
1.191 harris41 6687:
6688: =item *
6689:
1.243 albertel 6690: ssi($url,%hash) : server side include, does a complete request cycle on url to
6691: localhost, posts hash
6692:
6693: =back
6694:
6695: =head2 Data to String to Data
6696:
6697: =over 4
1.191 harris41 6698:
6699: =item *
6700:
1.243 albertel 6701: hash2str(%hash) : convert a hash into a string complete with escaping and '='
6702: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 6703:
6704: =item *
6705:
1.243 albertel 6706: hashref2str($hashref) : convert a hashref into a string complete with
6707: escaping and '=' and '&' separators, supports elements that are
6708: arrayrefs and hashrefs
1.191 harris41 6709:
6710: =item *
6711:
1.243 albertel 6712: arrayref2str($arrayref) : convert an arrayref into a string complete
6713: with escaping and '&' separators, supports elements that are arrayrefs
6714: and hashrefs
1.191 harris41 6715:
6716: =item *
6717:
1.243 albertel 6718: str2hash($string) : convert string to hash using unescaping and
6719: splitting on '=' and '&', supports elements that are arrayrefs and
6720: hashrefs
1.191 harris41 6721:
6722: =item *
6723:
1.243 albertel 6724: str2array($string) : convert string to hash using unescaping and
6725: splitting on '&', supports elements that are arrayrefs and hashrefs
6726:
6727: =back
6728:
6729: =head2 Logging Routines
6730:
6731: =over 4
6732:
6733: These routines allow one to make log messages in the lonnet.log and
6734: lonnet.perm logfiles.
1.191 harris41 6735:
6736: =item *
6737:
1.243 albertel 6738: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 6739:
6740: =item *
6741:
1.243 albertel 6742: logthis() : append message to the normal lonnet.log file, it gets
6743: preiodically rolled over and deleted.
1.191 harris41 6744:
6745: =item *
6746:
1.243 albertel 6747: logperm() : append a permanent message to lonnet.perm.log, this log
6748: file never gets deleted by any automated portion of the system, only
6749: messages of critical importance should go in here.
6750:
6751: =back
6752:
6753: =head2 General File Helper Routines
6754:
6755: =over 4
1.191 harris41 6756:
6757: =item *
6758:
1.481 raeburn 6759: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
6760: (a) files in /uploaded
6761: (i) If a local copy of the file exists -
6762: compares modification date of local copy with last-modified date for
6763: definitive version stored on home server for course. If local copy is
6764: stale, requests a new version from the home server and stores it.
6765: If the original has been removed from the home server, then local copy
6766: is unlinked.
6767: (ii) If local copy does not exist -
6768: requests the file from the home server and stores it.
6769:
6770: If $caller is 'uploadrep':
6771: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
6772: for request for files originally uploaded via DOCS.
6773: - returns 'ok' if fresh local copy now available, -1 otherwise.
6774:
6775: Otherwise:
6776: This indicates a call from the content generation phase of the request.
6777: - returns the entire contents of the file or -1.
6778:
6779: (b) files in /res
6780: - returns the entire contents of a file or -1;
6781: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 6782:
6783: =item *
6784:
1.243 albertel 6785: filelocation($dir,$file) : returns file system location of a file
6786: based on URI; meant to be "fairly clean" absolute reference, $dir is a
6787: directory that relative $file lookups are to looked in ($dir of /a/dir
6788: and a file of ../bob will become /a/bob)
1.191 harris41 6789:
6790: =item *
6791:
6792: hreflocation($dir,$file) : returns file system location or a URL; same as
6793: filelocation except for hrefs
6794:
6795: =item *
6796:
6797: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
6798:
1.243 albertel 6799: =back
6800:
1.608 albertel 6801: =head2 Usererfile file routines (/uploaded*)
6802:
6803: =over 4
6804:
6805: =item *
6806:
6807: userfileupload(): main rotine for putting a file in a user or course's
6808: filespace, arguments are,
6809:
1.620 albertel 6810: formname - required - this is the name of the element in $env where the
1.608 albertel 6811: filename, and the contents of the file to create/modifed exist
1.620 albertel 6812: the filename is in $env{'form.'.$formname.'.filename'} and the
6813: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 6814: coursedoc - if true, store the file in the course of the active role
6815: of the current user
6816: subdir - required - subdirectory to put the file in under ../userfiles/
6817: if undefined, it will be placed in "unknown"
6818:
6819: (This routine calls clean_filename() to remove any dangerous
6820: characters from the filename, and then calls finuserfileupload() to
6821: complete the transaction)
6822:
6823: returns either the url of the uploaded file (/uploaded/....) if successful
6824: and /adm/notfound.html if unsuccessful
6825:
6826: =item *
6827:
6828: clean_filename(): routine for cleaing a filename up for storage in
6829: userfile space, argument is:
6830:
6831: filename - proposed filename
6832:
6833: returns: the new clean filename
6834:
6835: =item *
6836:
6837: finishuserfileupload(): routine that creaes and sends the file to
6838: userspace, probably shouldn't be called directly
6839:
6840: docuname: username or courseid of destination for the file
6841: docudom: domain of user/course of destination for the file
6842: formname: same as for userfileupload()
6843: fname: filename (inculding subdirectories) for the file
6844:
6845: returns either the url of the uploaded file (/uploaded/....) if successful
6846: and /adm/notfound.html if unsuccessful
6847:
6848: =item *
6849:
6850: renameuserfile(): renames an existing userfile to a new name
6851:
6852: Args:
6853: docuname: username or courseid of destination for the file
6854: docudom: domain of user/course of destination for the file
6855: old: current file name (including any subdirs under userfiles)
6856: new: desired file name (including any subdirs under userfiles)
6857:
6858: =item *
6859:
6860: mkdiruserfile(): creates a directory is a userfiles dir
6861:
6862: Args:
6863: docuname: username or courseid of destination for the file
6864: docudom: domain of user/course of destination for the file
6865: dir: dir to create (including any subdirs under userfiles)
6866:
6867: =item *
6868:
6869: removeuserfile(): removes a file that exists in userfiles
6870:
6871: Args:
6872: docuname: username or courseid of destination for the file
6873: docudom: domain of user/course of destination for the file
6874: fname: filname to delete (including any subdirs under userfiles)
6875:
6876: =item *
6877:
6878: removeuploadedurl(): convience function for removeuserfile()
6879:
6880: Args:
6881: url: a full /uploaded/... url to delete
6882:
6883: =back
6884:
1.243 albertel 6885: =head2 HTTP Helper Routines
6886:
6887: =over 4
6888:
1.191 harris41 6889: =item *
6890:
6891: escape() : unpack non-word characters into CGI-compatible hex codes
6892:
6893: =item *
6894:
6895: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
6896:
1.243 albertel 6897: =back
6898:
6899: =head1 PRIVATE SUBROUTINES
6900:
6901: =head2 Underlying communication routines (Shouldn't call)
6902:
6903: =over 4
6904:
6905: =item *
6906:
6907: subreply() : tries to pass a message to lonc, returns con_lost if incapable
6908:
6909: =item *
6910:
6911: reply() : uses subreply to send a message to remote machine, logs all failures
6912:
6913: =item *
6914:
6915: critical() : passes a critical message to another server; if cannot
6916: get through then place message in connection buffer directory and
6917: returns con_delayed, if incapable of saving message, returns
6918: con_failed
6919:
6920: =item *
6921:
6922: reconlonc() : tries to reconnect lonc client processes.
6923:
6924: =back
6925:
6926: =head2 Resource Access Logging
6927:
6928: =over 4
6929:
6930: =item *
6931:
6932: flushcourselogs() : flush (save) buffer logs and access logs
6933:
6934: =item *
6935:
6936: courselog($what) : save message for course in hash
6937:
6938: =item *
6939:
6940: courseacclog($what) : save message for course using &courselog(). Perform
6941: special processing for specific resource types (problems, exams, quizzes, etc).
6942:
1.191 harris41 6943: =item *
6944:
6945: goodbye() : flush course logs and log shutting down; it is called in srm.conf
6946: as a PerlChildExitHandler
1.243 albertel 6947:
6948: =back
6949:
6950: =head2 Other
6951:
6952: =over 4
6953:
6954: =item *
6955:
6956: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 6957:
6958: =back
6959:
6960: =cut
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