Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.910.2.3
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.910.2.3! albertel 4: # $Id: lonnet.pm,v 1.910.2.2 2007/09/29 04:06:34 albertel Exp $
1.178 www 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.169 harris41 28: ###
29:
1.1 albertel 30: package Apache::lonnet;
31:
32: use strict;
1.8 www 33: use LWP::UserAgent();
1.486 www 34: use HTTP::Date;
35: # use Date::Parse;
1.871 albertel 36: use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
37: $_64bit %env);
38:
39: my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
40: %userrolehash, $processmarker, $dumpcount, %coursedombuf,
41: %coursenumbuf, %coursehombuf, %coursedescrbuf, %courseinstcodebuf,
42: %courseownerbuf, %coursetypebuf);
1.403 www 43:
1.1 albertel 44: use IO::Socket;
1.31 www 45: use GDBM_File;
1.208 albertel 46: use HTML::LCParser;
1.88 www 47: use Fcntl qw(:flock);
1.870 albertel 48: use Storable qw(thaw nfreeze);
1.539 albertel 49: use Time::HiRes qw( gettimeofday tv_interval );
1.599 albertel 50: use Cache::Memcached;
1.676 albertel 51: use Digest::MD5;
1.790 albertel 52: use Math::Random;
1.807 albertel 53: use LONCAPA qw(:DEFAULT :match);
1.740 www 54: use LONCAPA::Configuration;
1.676 albertel 55:
1.195 www 56: my $readit;
1.550 foxr 57: my $max_connection_retries = 10; # Or some such value.
1.1 albertel 58:
1.619 albertel 59: require Exporter;
60:
61: our @ISA = qw (Exporter);
62: our @EXPORT = qw(%env);
63:
1.449 matthew 64: =pod
65:
66: =head1 Package Variables
67:
68: These are largely undocumented, so if you decipher one please note it here.
69:
70: =over 4
71:
72: =item $processmarker
73:
74: Contains the time this process was started and this servers host id.
75:
76: =item $dumpcount
77:
78: Counts the number of times a message log flush has been attempted (regardless
79: of success) by this process. Used as part of the filename when messages are
80: delayed.
81:
82: =back
83:
84: =cut
85:
86:
1.1 albertel 87: # --------------------------------------------------------------------- Logging
1.729 www 88: {
89: my $logid;
90: sub instructor_log {
91: my ($hash_name,$storehash,$delflag,$uname,$udom)=@_;
92: $logid++;
93: my $id=time().'00000'.$$.'00000'.$logid;
94: return &Apache::lonnet::put('nohist_'.$hash_name,
1.730 www 95: { $id => {
96: 'exe_uname' => $env{'user.name'},
97: 'exe_udom' => $env{'user.domain'},
98: 'exe_time' => time(),
99: 'exe_ip' => $ENV{'REMOTE_ADDR'},
100: 'delflag' => $delflag,
101: 'logentry' => $storehash,
102: 'uname' => $uname,
103: 'udom' => $udom,
104: }
105: },
1.729 www 106: $env{'course.'.$env{'request.course.id'}.'.domain'},
107: $env{'course.'.$env{'request.course.id'}.'.num'}
108: );
109: }
110: }
1.1 albertel 111:
1.163 harris41 112: sub logtouch {
113: my $execdir=$perlvar{'lonDaemons'};
1.448 albertel 114: unless (-e "$execdir/logs/lonnet.log") {
115: open(my $fh,">>$execdir/logs/lonnet.log");
1.163 harris41 116: close $fh;
117: }
118: my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
119: chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log');
120: }
121:
1.1 albertel 122: sub logthis {
123: my $message=shift;
124: my $execdir=$perlvar{'lonDaemons'};
125: my $now=time;
126: my $local=localtime($now);
1.448 albertel 127: if (open(my $fh,">>$execdir/logs/lonnet.log")) {
128: print $fh "$local ($$): $message\n";
129: close($fh);
130: }
1.1 albertel 131: return 1;
132: }
133:
134: sub logperm {
135: my $message=shift;
136: my $execdir=$perlvar{'lonDaemons'};
137: my $now=time;
138: my $local=localtime($now);
1.448 albertel 139: if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
140: print $fh "$now:$message:$local\n";
141: close($fh);
142: }
1.1 albertel 143: return 1;
144: }
145:
1.850 albertel 146: sub create_connection {
1.853 albertel 147: my ($hostname,$lonid) = @_;
1.851 albertel 148: my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
1.850 albertel 149: Type => SOCK_STREAM,
150: Timeout => 10);
151: return 0 if (!$client);
1.890 albertel 152: print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");
1.850 albertel 153: my $result = <$client>;
154: chomp($result);
155: return 1 if ($result eq 'done');
156: return 0;
157: }
158:
159:
1.1 albertel 160: # -------------------------------------------------- Non-critical communication
161: sub subreply {
162: my ($cmd,$server)=@_;
1.838 albertel 163: my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
1.549 foxr 164: #
165: # With loncnew process trimming, there's a timing hole between lonc server
166: # process exit and the master server picking up the listen on the AF_UNIX
167: # socket. In that time interval, a lock file will exist:
168:
169: my $lockfile=$peerfile.".lock";
170: while (-e $lockfile) { # Need to wait for the lockfile to disappear.
171: sleep(1);
172: }
173: # At this point, either a loncnew parent is listening or an old lonc
1.550 foxr 174: # or loncnew child is listening so we can connect or everything's dead.
1.549 foxr 175: #
1.550 foxr 176: # We'll give the connection a few tries before abandoning it. If
177: # connection is not possible, we'll con_lost back to the client.
178: #
179: my $client;
180: for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
181: $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
182: Type => SOCK_STREAM,
183: Timeout => 10);
1.869 albertel 184: if ($client) {
1.550 foxr 185: last; # Connected!
1.850 albertel 186: } else {
1.853 albertel 187: &create_connection(&hostname($server),$server);
1.550 foxr 188: }
1.850 albertel 189: sleep(1); # Try again later if failed connection.
1.550 foxr 190: }
191: my $answer;
192: if ($client) {
1.704 albertel 193: print $client "sethost:$server:$cmd\n";
1.550 foxr 194: $answer=<$client>;
195: if (!$answer) { $answer="con_lost"; }
196: chomp($answer);
197: } else {
198: $answer = 'con_lost'; # Failed connection.
199: }
1.1 albertel 200: return $answer;
201: }
202:
203: sub reply {
204: my ($cmd,$server)=@_;
1.838 albertel 205: unless (defined(&hostname($server))) { return 'no_such_host'; }
1.1 albertel 206: my $answer=subreply($cmd,$server);
1.65 www 207: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.672 albertel 208: &logthis("<font color=\"blue\">WARNING:".
1.12 www 209: " $cmd to $server returned $answer</font>");
210: }
1.1 albertel 211: return $answer;
212: }
213:
214: # ----------------------------------------------------------- Send USR1 to lonc
215:
216: sub reconlonc {
1.891 albertel 217: my ($lonid) = @_;
218: my $hostname = &hostname($lonid);
219: if ($lonid) {
220: my $peerfile="$perlvar{'lonSockDir'}/$hostname";
221: if ($hostname && -e $peerfile) {
222: &logthis("Trying to reconnect lonc for $lonid ($hostname)");
223: my $client=IO::Socket::UNIX->new(Peer => $peerfile,
224: Type => SOCK_STREAM,
225: Timeout => 10);
226: if ($client) {
227: print $client ("reset_retries\n");
228: my $answer=<$client>;
229: #reset just this one.
230: }
231: }
232: return;
233: }
234:
1.836 www 235: &logthis("Trying to reconnect lonc");
1.1 albertel 236: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 237: if (open(my $fh,"<$loncfile")) {
1.1 albertel 238: my $loncpid=<$fh>;
239: chomp($loncpid);
240: if (kill 0 => $loncpid) {
241: &logthis("lonc at pid $loncpid responding, sending USR1");
242: kill USR1 => $loncpid;
243: sleep 1;
1.836 www 244: } else {
1.12 www 245: &logthis(
1.672 albertel 246: "<font color=\"blue\">WARNING:".
1.12 www 247: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 248: }
249: } else {
1.836 www 250: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 251: }
252: }
253:
254: # ------------------------------------------------------ Critical communication
1.12 www 255:
1.1 albertel 256: sub critical {
257: my ($cmd,$server)=@_;
1.838 albertel 258: unless (&hostname($server)) {
1.672 albertel 259: &logthis("<font color=\"blue\">WARNING:".
1.89 www 260: " Critical message to unknown server ($server)</font>");
261: return 'no_such_host';
262: }
1.1 albertel 263: my $answer=reply($cmd,$server);
264: if ($answer eq 'con_lost') {
265: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 266: my $answer=reply($cmd,$server);
1.1 albertel 267: if ($answer eq 'con_lost') {
268: my $now=time;
269: my $middlename=$cmd;
1.5 www 270: $middlename=substr($middlename,0,16);
1.1 albertel 271: $middlename=~s/\W//g;
272: my $dfilename=
1.305 www 273: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
274: $dumpcount++;
1.1 albertel 275: {
1.448 albertel 276: my $dfh;
277: if (open($dfh,">$dfilename")) {
278: print $dfh "$cmd\n";
279: close($dfh);
280: }
1.1 albertel 281: }
282: sleep 2;
283: my $wcmd='';
284: {
1.448 albertel 285: my $dfh;
286: if (open($dfh,"<$dfilename")) {
287: $wcmd=<$dfh>;
288: close($dfh);
289: }
1.1 albertel 290: }
291: chomp($wcmd);
1.7 www 292: if ($wcmd eq $cmd) {
1.672 albertel 293: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 294: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 295: &logperm("D:$server:$cmd");
296: return 'con_delayed';
297: } else {
1.672 albertel 298: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 299: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 300: &logperm("F:$server:$cmd");
301: return 'con_failed';
302: }
303: }
304: }
305: return $answer;
1.405 albertel 306: }
307:
1.755 albertel 308: # ------------------------------------------- check if return value is an error
309:
310: sub error {
311: my ($result) = @_;
1.756 albertel 312: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 313: if ($2 == 2) { return undef; }
314: return $1;
315: }
316: return undef;
317: }
318:
1.783 albertel 319: sub convert_and_load_session_env {
320: my ($lonidsdir,$handle)=@_;
321: my @profile;
322: {
1.910.2.3! albertel 323: open(my $idf,'+<',"$lonidsdir/$handle.id");
! 324: if (!$idf) {
! 325: return 0;
! 326: }
1.783 albertel 327: flock($idf,LOCK_SH);
328: @profile=<$idf>;
329: close($idf);
330: }
331: my %temp_env;
332: foreach my $line (@profile) {
1.786 albertel 333: if ($line !~ m/=/) {
334: return 0;
335: }
1.783 albertel 336: chomp($line);
337: my ($envname,$envvalue)=split(/=/,$line,2);
338: $temp_env{&unescape($envname)} = &unescape($envvalue);
339: }
340: unlink("$lonidsdir/$handle.id");
341: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
342: 0640)) {
343: %disk_env = %temp_env;
344: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
345: untie(%disk_env);
346: }
1.786 albertel 347: return 1;
1.783 albertel 348: }
349:
1.374 www 350: # ------------------------------------------- Transfer profile into environment
1.780 albertel 351: my $env_loaded;
352: sub transfer_profile_to_env {
1.788 albertel 353: my ($lonidsdir,$handle,$force_transfer) = @_;
354: if (!$force_transfer && $env_loaded) { return; }
1.374 www 355:
1.720 albertel 356: if (!defined($lonidsdir)) {
357: $lonidsdir = $perlvar{'lonIDsDir'};
358: }
359: if (!defined($handle)) {
360: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
361: }
362:
1.786 albertel 363: my $convert;
364: {
1.910.2.3! albertel 365: open(my $idf,'+<',"$lonidsdir/$handle.id");
! 366: if (!$idf) {
! 367: return;
! 368: }
1.786 albertel 369: flock($idf,LOCK_SH);
370: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
371: &GDBM_READER(),0640)) {
372: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
373: untie(%disk_env);
374: } else {
375: $convert = 1;
376: }
377: }
378: if ($convert) {
379: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
380: &logthis("Failed to load session, or convert session.");
381: }
1.374 www 382: }
1.783 albertel 383:
1.786 albertel 384: my %remove;
1.783 albertel 385: while ( my $envname = each(%env) ) {
1.433 matthew 386: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
387: if ($time < time-300) {
1.783 albertel 388: $remove{$key}++;
1.433 matthew 389: }
390: }
391: }
1.783 albertel 392:
1.619 albertel 393: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 394: $env_loaded=1;
1.783 albertel 395: foreach my $expired_key (keys(%remove)) {
1.433 matthew 396: &delenv($expired_key);
1.374 www 397: }
1.1 albertel 398: }
399:
1.830 albertel 400: sub timed_flock {
401: my ($file,$lock_type) = @_;
402: my $failed=0;
403: eval {
404: local $SIG{__DIE__}='DEFAULT';
405: local $SIG{ALRM}=sub {
406: $failed=1;
407: die("failed lock");
408: };
409: alarm(13);
410: flock($file,$lock_type);
411: alarm(0);
412: };
413: if ($failed) {
414: return undef;
415: } else {
416: return 1;
417: }
418: }
419:
1.5 www 420: # ---------------------------------------------------------- Append Environment
421:
422: sub appenv {
1.6 www 423: my %newenv=@_;
1.692 albertel 424: foreach my $key (keys(%newenv)) {
425: if (($newenv{$key}=~/^user\.role/) || ($newenv{$key}=~/^user\.priv/)) {
1.672 albertel 426: &logthis("<font color=\"blue\">WARNING: ".
1.692 albertel 427: "Attempt to modify environment ".$key." to ".$newenv{$key}
1.151 www 428: .'</font>');
1.692 albertel 429: delete($newenv{$key});
1.35 www 430: } else {
1.692 albertel 431: $env{$key}=$newenv{$key};
1.35 www 432: }
1.191 harris41 433: }
1.910.2.3! albertel 434: open(my $env_file,'+<',$env{'user.environment'});
! 435: if ($env_file
! 436: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 437: &&
438: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
439: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 440: while (my ($key,$value) = each(%newenv)) {
441: $disk_env{$key} = $value;
1.448 albertel 442: }
1.783 albertel 443: untie(%disk_env);
1.56 www 444: }
445: return 'ok';
446: }
447: # ----------------------------------------------------- Delete from Environment
448:
449: sub delenv {
450: my $delthis=shift;
451: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 452: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 453: "Attempt to delete from environment ".$delthis);
454: return 'error';
455: }
1.910.2.3! albertel 456: open(my $env_file,'+<',$env{'user.environment'});
! 457: if ($env_file
! 458: && &timed_flock($env_file,LOCK_EX)
1.830 albertel 459: &&
460: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
461: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 462: foreach my $key (keys(%disk_env)) {
463: if ($key=~/^$delthis/) {
1.910.2.3! albertel 464: delete($env{$key});
! 465: delete($disk_env{$key});
! 466: }
1.448 albertel 467: }
1.783 albertel 468: untie(%disk_env);
1.5 www 469: }
470: return 'ok';
1.369 albertel 471: }
472:
1.790 albertel 473: sub get_env_multiple {
474: my ($name) = @_;
475: my @values;
476: if (defined($env{$name})) {
477: # exists is it an array
478: if (ref($env{$name})) {
479: @values=@{ $env{$name} };
480: } else {
481: $values[0]=$env{$name};
482: }
483: }
484: return(@values);
485: }
486:
1.369 albertel 487: # ------------------------------------------ Find out current server userload
488: # there is a copy in lond
489: sub userload {
490: my $numusers=0;
491: {
492: opendir(LONIDS,$perlvar{'lonIDsDir'});
493: my $filename;
494: my $curtime=time;
495: while ($filename=readdir(LONIDS)) {
496: if ($filename eq '.' || $filename eq '..') {next;}
1.404 albertel 497: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 498: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 499: }
500: closedir(LONIDS);
501: }
502: my $userloadpercent=0;
503: my $maxuserload=$perlvar{'lonUserLoadLim'};
504: if ($maxuserload) {
1.371 albertel 505: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 506: }
1.372 albertel 507: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 508: return $userloadpercent;
1.283 www 509: }
510:
511: # ------------------------------------------ Fight off request when overloaded
512:
513: sub overloaderror {
514: my ($r,$checkserver)=@_;
515: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
516: my $loadavg;
517: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 518: open(my $loadfile,'/proc/loadavg');
1.283 www 519: $loadavg=<$loadfile>;
520: $loadavg =~ s/\s.*//g;
1.285 matthew 521: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 522: close($loadfile);
1.283 www 523: } else {
524: $loadavg=&reply('load',$checkserver);
525: }
1.285 matthew 526: my $overload=$loadavg-100;
1.283 www 527: if ($overload>0) {
1.285 matthew 528: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 529: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 530: return 413;
1.283 www 531: }
532: return '';
1.5 www 533: }
1.1 albertel 534:
535: # ------------------------------ Find server with least workload from spare.tab
1.11 www 536:
1.1 albertel 537: sub spareserver {
1.670 albertel 538: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 539: my $spare_server;
1.370 albertel 540: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 541: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
542: : $userloadpercent;
543:
544: foreach my $try_server (@{ $spareid{'primary'} }) {
545: ($spare_server, $lowest_load) =
546: &compare_server_load($try_server, $spare_server, $lowest_load);
547: }
548:
549: my $found_server = ($spare_server ne '' && $lowest_load < 100);
550:
551: if (!$found_server) {
552: foreach my $try_server (@{ $spareid{'default'} }) {
553: ($spare_server, $lowest_load) =
554: &compare_server_load($try_server, $spare_server, $lowest_load);
555: }
556: }
557:
558: if (!$want_server_name) {
1.838 albertel 559: $spare_server="http://".&hostname($spare_server);
1.784 albertel 560: }
561: return $spare_server;
562: }
563:
564: sub compare_server_load {
565: my ($try_server, $spare_server, $lowest_load) = @_;
566:
567: my $loadans = &reply('load', $try_server);
568: my $userloadans = &reply('userload',$try_server);
569:
570: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
571: next; #didn't get a number from the server
572: }
573:
574: my $load;
575: if ($loadans =~ /\d/) {
576: if ($userloadans =~ /\d/) {
577: #both are numbers, pick the bigger one
578: $load = ($loadans > $userloadans) ? $loadans
579: : $userloadans;
1.411 albertel 580: } else {
1.784 albertel 581: $load = $loadans;
1.411 albertel 582: }
1.784 albertel 583: } else {
584: $load = $userloadans;
585: }
586:
587: if (($load =~ /\d/) && ($load < $lowest_load)) {
588: $spare_server = $try_server;
589: $lowest_load = $load;
1.370 albertel 590: }
1.784 albertel 591: return ($spare_server,$lowest_load);
1.202 matthew 592: }
1.910.2.2 albertel 593:
594: # --------------------------- ask offload servers if user already has a session
595: sub find_existing_session {
596: my ($udom,$uname) = @_;
597: foreach my $try_server (@{ $spareid{'primary'} },
598: @{ $spareid{'default'} }) {
599: return $try_server if (&has_user_session($try_server, $udom, $uname));
600: }
601: return;
602: }
603:
604: # -------------------------------- ask if server already has a session for user
605: sub has_user_session {
606: my ($lonid,$udom,$uname) = @_;
607: my $result = &reply(join(':','userhassession',
608: map {&escape($_)} ($udom,$uname)),$lonid);
609: return 1 if ($result eq 'ok');
610:
611: return 0;
612: }
613:
1.202 matthew 614: # --------------------------------------------- Try to change a user's password
615:
616: sub changepass {
1.799 raeburn 617: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 618: $currentpass = &escape($currentpass);
619: $newpass = &escape($newpass);
1.799 raeburn 620: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context",
1.202 matthew 621: $server);
622: if (! $answer) {
623: &logthis("No reply on password change request to $server ".
624: "by $uname in domain $udom.");
625: } elsif ($answer =~ "^ok") {
626: &logthis("$uname in $udom successfully changed their password ".
627: "on $server.");
628: } elsif ($answer =~ "^pwchange_failure") {
629: &logthis("$uname in $udom was unable to change their password ".
630: "on $server. The action was blocked by either lcpasswd ".
631: "or pwchange");
632: } elsif ($answer =~ "^non_authorized") {
633: &logthis("$uname in $udom did not get their password correct when ".
634: "attempting to change it on $server.");
635: } elsif ($answer =~ "^auth_mode_error") {
636: &logthis("$uname in $udom attempted to change their password despite ".
637: "not being locally or internally authenticated on $server.");
638: } elsif ($answer =~ "^unknown_user") {
639: &logthis("$uname in $udom attempted to change their password ".
640: "on $server but were unable to because $server is not ".
641: "their home server.");
642: } elsif ($answer =~ "^refused") {
643: &logthis("$server refused to change $uname in $udom password because ".
644: "it was sent an unencrypted request to change the password.");
645: }
646: return $answer;
1.1 albertel 647: }
648:
1.169 harris41 649: # ----------------------- Try to determine user's current authentication scheme
650:
651: sub queryauthenticate {
652: my ($uname,$udom)=@_;
1.456 albertel 653: my $uhome=&homeserver($uname,$udom);
654: if (!$uhome) {
655: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
656: return 'no_host';
657: }
658: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
659: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
660: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 661: }
1.456 albertel 662: return $answer;
1.169 harris41 663: }
664:
1.1 albertel 665: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 666:
1.1 albertel 667: sub authenticate {
668: my ($uname,$upass,$udom)=@_;
1.807 albertel 669: $upass=&escape($upass);
670: $uname= &LONCAPA::clean_username($uname);
1.836 www 671: my $uhome=&homeserver($uname,$udom,1);
672: if ((!$uhome) || ($uhome eq 'no_host')) {
673: # Maybe the machine was offline and only re-appeared again recently?
674: &reconlonc();
675: # One more
676: my $uhome=&homeserver($uname,$udom,1);
677: if ((!$uhome) || ($uhome eq 'no_host')) {
678: &logthis("User $uname at $udom is unknown in authenticate");
679: }
1.471 albertel 680: return 'no_host';
1.1 albertel 681: }
1.471 albertel 682: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);
683: if ($answer eq 'authorized') {
684: &logthis("User $uname at $udom authorized by $uhome");
685: return $uhome;
686: }
687: if ($answer eq 'non_authorized') {
688: &logthis("User $uname at $udom rejected by $uhome");
689: return 'no_host';
1.9 www 690: }
1.471 albertel 691: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 692: return 'no_host';
693: }
694:
695: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 696:
1.599 albertel 697: my %homecache;
1.1 albertel 698: sub homeserver {
1.230 stredwic 699: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 700: my $index="$uname:$udom";
1.426 albertel 701:
1.599 albertel 702: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 703:
704: my %servers = &get_servers($udom,'library');
705: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 706: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 707: exists($badServerCache{$tryserver}));
1.841 albertel 708:
709: my $answer=reply("home:$udom:$uname",$tryserver);
710: if ($answer eq 'found') {
711: delete($badServerCache{$tryserver});
712: return $homecache{$index}=$tryserver;
713: } elsif ($answer eq 'no_host') {
714: $badServerCache{$tryserver}=1;
715: }
1.1 albertel 716: }
717: return 'no_host';
1.70 www 718: }
719:
720: # ------------------------------------- Find the usernames behind a list of IDs
721:
722: sub idget {
723: my ($udom,@ids)=@_;
724: my %returnhash=();
725:
1.841 albertel 726: my %servers = &get_servers($udom,'library');
727: foreach my $tryserver (keys(%servers)) {
728: my $idlist=join('&',@ids);
729: $idlist=~tr/A-Z/a-z/;
730: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
731: my @answer=();
732: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
733: @answer=split(/\&/,$reply);
734: } ;
735: my $i;
736: for ($i=0;$i<=$#ids;$i++) {
737: if ($answer[$i]) {
738: $returnhash{$ids[$i]}=$answer[$i];
739: }
740: }
741: }
1.70 www 742: return %returnhash;
743: }
744:
745: # ------------------------------------- Find the IDs behind a list of usernames
746:
747: sub idrget {
748: my ($udom,@unames)=@_;
749: my %returnhash=();
1.800 albertel 750: foreach my $uname (@unames) {
751: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 752: }
1.70 www 753: return %returnhash;
754: }
755:
756: # ------------------------------- Store away a list of names and associated IDs
757:
758: sub idput {
759: my ($udom,%ids)=@_;
760: my %servers=();
1.800 albertel 761: foreach my $uname (keys(%ids)) {
762: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
763: my $uhom=&homeserver($uname,$udom);
1.70 www 764: if ($uhom ne 'no_host') {
1.800 albertel 765: my $id=&escape($ids{$uname});
1.70 www 766: $id=~tr/A-Z/a-z/;
1.800 albertel 767: my $esc_unam=&escape($uname);
1.70 www 768: if ($servers{$uhom}) {
1.800 albertel 769: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 770: } else {
1.800 albertel 771: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 772: }
773: }
1.191 harris41 774: }
1.800 albertel 775: foreach my $server (keys(%servers)) {
776: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 777: }
1.344 www 778: }
779:
1.806 raeburn 780: # ------------------------------------------- get items from domain db files
781:
782: sub get_dom {
1.860 raeburn 783: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 784: my $items='';
785: foreach my $item (@$storearr) {
786: $items.=&escape($item).'&';
787: }
788: $items=~s/\&$//;
1.860 raeburn 789: if (!$udom) {
790: $udom=$env{'user.domain'};
791: if (defined(&domain($udom,'primary'))) {
792: $uhome=&domain($udom,'primary');
793: } else {
1.874 albertel 794: undef($uhome);
1.860 raeburn 795: }
796: } else {
797: if (!$uhome) {
798: if (defined(&domain($udom,'primary'))) {
799: $uhome=&domain($udom,'primary');
800: }
801: }
802: }
803: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 804: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 805: my %returnhash;
1.875 albertel 806: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 807: return %returnhash;
808: }
1.806 raeburn 809: my @pairs=split(/\&/,$rep);
810: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
811: return @pairs;
812: }
813: my $i=0;
814: foreach my $item (@$storearr) {
815: $returnhash{$item}=&thaw_unescape($pairs[$i]);
816: $i++;
817: }
818: return %returnhash;
819: } else {
1.880 banghart 820: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 821: }
822: }
823:
824: # -------------------------------------------- put items in domain db files
825:
826: sub put_dom {
1.860 raeburn 827: my ($namespace,$storehash,$udom,$uhome)=@_;
828: if (!$udom) {
829: $udom=$env{'user.domain'};
830: if (defined(&domain($udom,'primary'))) {
831: $uhome=&domain($udom,'primary');
832: } else {
1.874 albertel 833: undef($uhome);
1.860 raeburn 834: }
835: } else {
836: if (!$uhome) {
837: if (defined(&domain($udom,'primary'))) {
838: $uhome=&domain($udom,'primary');
839: }
840: }
841: }
842: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 843: my $items='';
844: foreach my $item (keys(%$storehash)) {
845: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
846: }
847: $items=~s/\&$//;
848: return &reply("putdom:$udom:$namespace:$items",$uhome);
849: } else {
1.860 raeburn 850: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 851: }
852: }
853:
1.837 raeburn 854: sub retrieve_inst_usertypes {
855: my ($udom) = @_;
856: my (%returnhash,@order);
1.846 albertel 857: if (defined(&domain($udom,'primary'))) {
858: my $uhome=&domain($udom,'primary');
1.837 raeburn 859: my $rep=&reply("inst_usertypes:$udom",$uhome);
860: my ($hashitems,$orderitems) = split(/:/,$rep);
861: my @pairs=split(/\&/,$hashitems);
862: foreach my $item (@pairs) {
863: my ($key,$value)=split(/=/,$item,2);
864: $key = &unescape($key);
865: next if ($key =~ /^error: 2 /);
866: $returnhash{$key}=&thaw_unescape($value);
867: }
868: my @esc_order = split(/\&/,$orderitems);
869: foreach my $item (@esc_order) {
870: push(@order,&unescape($item));
871: }
872: } else {
873: &logthis("get_dom failed - no primary domain server for $udom");
874: }
875: return (\%returnhash,\@order);
876: }
877:
1.868 raeburn 878: sub is_domainimage {
879: my ($url) = @_;
880: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
881: if (&domain($1) ne '') {
882: return '1';
883: }
884: }
885: return;
886: }
887:
1.899 raeburn 888: sub inst_directory_query {
889: my ($srch) = @_;
890: my $udom = $srch->{'srchdomain'};
891: my %results;
892: my $homeserver = &domain($udom,'primary');
1.909 raeburn 893: my $outcome;
1.899 raeburn 894: if ($homeserver ne '') {
1.904 albertel 895: my $queryid=&reply("querysend:instdirsearch:".
896: &escape($srch->{'srchby'}).':'.
897: &escape($srch->{'srchterm'}).':'.
898: &escape($srch->{'srchtype'}),$homeserver);
899: my $host=&hostname($homeserver);
900: if ($queryid !~/^\Q$host\E\_/) {
901: &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
902: return;
903: }
904: my $response = &get_query_reply($queryid);
905: my $maxtries = 5;
906: my $tries = 1;
907: while (($response=~/^timeout/) && ($tries < $maxtries)) {
908: $response = &get_query_reply($queryid);
909: $tries ++;
910: }
911:
912: if (!&error($response) && $response ne 'refused') {
1.909 raeburn 913: if ($response eq 'unavailable') {
914: $outcome = $response;
915: } else {
916: $outcome = 'ok';
917: my @matches = split(/\n/,$response);
918: foreach my $match (@matches) {
919: my ($key,$value) = split(/=/,$match);
920: $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
921: }
1.899 raeburn 922: }
923: }
924: }
1.909 raeburn 925: return ($outcome,%results);
1.899 raeburn 926: }
927:
928: sub usersearch {
929: my ($srch) = @_;
930: my $dom = $srch->{'srchdomain'};
931: my %results;
932: my %libserv = &all_library();
933: my $query = 'usersearch';
934: foreach my $tryserver (keys(%libserv)) {
935: if (&host_domain($tryserver) eq $dom) {
936: my $host=&hostname($tryserver);
937: my $queryid=
938: &reply("querysend:".&escape($query).':'.&escape($dom).':'.
939: &escape($srch->{'srchby'}).'%%'.
940: &escape($srch->{'srchtype'}).':'.
941: &escape($srch->{'srchterm'}),$tryserver);
942: if ($queryid !~/^\Q$host\E\_/) {
943: &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
1.902 raeburn 944: next;
1.899 raeburn 945: }
946: my $reply = &get_query_reply($queryid);
947: my $maxtries = 1;
948: my $tries = 1;
949: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
950: $reply = &get_query_reply($queryid);
951: $tries ++;
952: }
953: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
954: &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
955: } else {
1.900 albertel 956: my @matches = split(/&/,$reply);
1.899 raeburn 957: foreach my $match (@matches) {
958: my @items = split(/:/,$match);
959: my ($uname,$udom,%userhash);
960: foreach my $entry (@items) {
961: my ($key,$value) = split(/=/,$entry);
962: $key = &unescape($key);
963: $value = &unescape($value);
964: $userhash{$key} = $value;
965: if ($key eq 'username') {
966: $uname = $value;
967: } elsif ($key eq 'domain') {
968: $udom = $value;
969: }
970: }
971: $results{$uname.':'.$udom} = \%userhash;
972: }
973: }
974: }
975: }
976: return %results;
977: }
978:
1.344 www 979: # --------------------------------------------------- Assign a key to a student
980:
981: sub assign_access_key {
1.364 www 982: #
983: # a valid key looks like uname:udom#comments
984: # comments are being appended
985: #
1.498 www 986: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
987: $kdom=
1.620 albertel 988: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 989: $knum=
1.620 albertel 990: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 991: $cdom=
1.620 albertel 992: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 993: $cnum=
1.620 albertel 994: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
995: $udom=$env{'user.name'} unless (defined($udom));
996: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 997: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 998: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 999: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 1000: # assigned to this person
1001: # - this should not happen,
1.345 www 1002: # unless something went wrong
1003: # the first time around
1004: # ready to assign
1.364 www 1005: $logentry=$1.'; '.$logentry;
1.496 www 1006: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 1007: $kdom,$knum) eq 'ok') {
1.345 www 1008: # key now belongs to user
1.346 www 1009: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 1010: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
1011: &appenv('environment.'.$envkey => $ckey);
1012: return 'ok';
1013: } else {
1014: return
1015: 'error: Count not permanently assign key, will need to be re-entered later.';
1016: }
1017: } else {
1018: return 'error: Could not assign key, try again later.';
1019: }
1.364 www 1020: } elsif (!$existing{$ckey}) {
1.345 www 1021: # the key does not exist
1022: return 'error: The key does not exist';
1023: } else {
1024: # the key is somebody else's
1025: return 'error: The key is already in use';
1026: }
1.344 www 1027: }
1028:
1.364 www 1029: # ------------------------------------------ put an additional comment on a key
1030:
1031: sub comment_access_key {
1032: #
1033: # a valid key looks like uname:udom#comments
1034: # comments are being appended
1035: #
1036: my ($ckey,$cdom,$cnum,$logentry)=@_;
1037: $cdom=
1.620 albertel 1038: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 1039: $cnum=
1.620 albertel 1040: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 1041: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1042: if ($existing{$ckey}) {
1043: $existing{$ckey}.='; '.$logentry;
1044: # ready to assign
1.367 www 1045: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 1046: $cdom,$cnum) eq 'ok') {
1047: return 'ok';
1048: } else {
1049: return 'error: Count not store comment.';
1050: }
1051: } else {
1052: # the key does not exist
1053: return 'error: The key does not exist';
1054: }
1055: }
1056:
1.344 www 1057: # ------------------------------------------------------ Generate a set of keys
1058:
1059: sub generate_access_keys {
1.364 www 1060: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 1061: $cdom=
1.620 albertel 1062: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1063: $cnum=
1.620 albertel 1064: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 1065: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 1066: unless (($cdom) && ($cnum)) { return 0; }
1067: if ($number>10000) { return 0; }
1068: sleep(2); # make sure don't get same seed twice
1069: srand(time()^($$+($$<<15))); # from "Programming Perl"
1070: my $total=0;
1071: for (my $i=1;$i<=$number;$i++) {
1072: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
1073: sprintf("%lx",int(100000*rand)).'-'.
1074: sprintf("%lx",int(100000*rand));
1075: $newkey=~s/1/g/g; # folks mix up 1 and l
1076: $newkey=~s/0/h/g; # and also 0 and O
1077: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
1078: if ($existing{$newkey}) {
1079: $i--;
1080: } else {
1.364 www 1081: if (&put('accesskeys',
1082: { $newkey => '# generated '.localtime().
1.620 albertel 1083: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 1084: '; '.$logentry },
1085: $cdom,$cnum) eq 'ok') {
1.344 www 1086: $total++;
1087: }
1088: }
1089: }
1.620 albertel 1090: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 1091: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
1092: return $total;
1093: }
1094:
1095: # ------------------------------------------------------- Validate an accesskey
1096:
1097: sub validate_access_key {
1098: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
1099: $cdom=
1.620 albertel 1100: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 1101: $cnum=
1.620 albertel 1102: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1103: $udom=$env{'user.domain'} unless (defined($udom));
1104: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 1105: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 1106: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 1107: }
1108:
1109: # ------------------------------------- Find the section of student in a course
1.652 albertel 1110: sub devalidate_getsection_cache {
1111: my ($udom,$unam,$courseid)=@_;
1112: my $hashid="$udom:$unam:$courseid";
1113: &devalidate_cache_new('getsection',$hashid);
1114: }
1.298 matthew 1115:
1.815 albertel 1116: sub courseid_to_courseurl {
1117: my ($courseid) = @_;
1118: #already url style courseid
1119: return $courseid if ($courseid =~ m{^/});
1120:
1121: if (exists($env{'course.'.$courseid.'.num'})) {
1122: my $cnum = $env{'course.'.$courseid.'.num'};
1123: my $cdom = $env{'course.'.$courseid.'.domain'};
1124: return "/$cdom/$cnum";
1125: }
1126:
1127: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
1128: if (exists($courseinfo{'num'})) {
1129: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
1130: }
1131:
1132: return undef;
1133: }
1134:
1.298 matthew 1135: sub getsection {
1136: my ($udom,$unam,$courseid)=@_;
1.599 albertel 1137: my $cachetime=1800;
1.551 albertel 1138:
1139: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1140: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1141: if (defined($cached)) { return $result; }
1142:
1.298 matthew 1143: my %Pending;
1144: my %Expired;
1145: #
1146: # Each role can either have not started yet (pending), be active,
1147: # or have expired.
1148: #
1149: # If there is an active role, we are done.
1150: #
1151: # If there is more than one role which has not started yet,
1152: # choose the one which will start sooner
1153: # If there is one role which has not started yet, return it.
1154: #
1155: # If there is more than one expired role, choose the one which ended last.
1156: # If there is a role which has expired, return it.
1157: #
1.815 albertel 1158: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1159: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1160: foreach my $key (keys(%roleshash)) {
1.479 albertel 1161: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1162: my $section=$1;
1163: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1164: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1165: my $now=time;
1.548 albertel 1166: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1167: $Expired{$end}=$section;
1168: next;
1169: }
1.548 albertel 1170: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1171: $Pending{$start}=$section;
1172: next;
1173: }
1.599 albertel 1174: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1175: }
1176: #
1177: # Presumedly there will be few matching roles from the above
1178: # loop and the sorting time will be negligible.
1179: if (scalar(keys(%Pending))) {
1180: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1181: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1182: }
1183: if (scalar(keys(%Expired))) {
1184: my @sorted = sort {$a <=> $b} keys(%Expired);
1185: my $time = pop(@sorted);
1.599 albertel 1186: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1187: }
1.599 albertel 1188: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1189: }
1.70 www 1190:
1.599 albertel 1191: sub save_cache {
1192: &purge_remembered();
1.722 albertel 1193: #&Apache::loncommon::validate_page();
1.620 albertel 1194: undef(%env);
1.780 albertel 1195: undef($env_loaded);
1.599 albertel 1196: }
1.452 albertel 1197:
1.599 albertel 1198: my $to_remember=-1;
1199: my %remembered;
1200: my %accessed;
1201: my $kicks=0;
1202: my $hits=0;
1.849 albertel 1203: sub make_key {
1204: my ($name,$id) = @_;
1.872 albertel 1205: if (length($id) > 65
1206: && length(&escape($id)) > 200) {
1207: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1208: }
1.849 albertel 1209: return &escape($name.':'.$id);
1210: }
1211:
1.599 albertel 1212: sub devalidate_cache_new {
1213: my ($name,$id,$debug) = @_;
1214: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1215: $id=&make_key($name,$id);
1.599 albertel 1216: $memcache->delete($id);
1217: delete($remembered{$id});
1218: delete($accessed{$id});
1219: }
1220:
1221: sub is_cached_new {
1222: my ($name,$id,$debug) = @_;
1.849 albertel 1223: $id=&make_key($name,$id);
1.599 albertel 1224: if (exists($remembered{$id})) {
1225: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1226: $accessed{$id}=[&gettimeofday()];
1227: $hits++;
1228: return ($remembered{$id},1);
1229: }
1230: my $value = $memcache->get($id);
1231: if (!(defined($value))) {
1232: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1233: return (undef,undef);
1.416 albertel 1234: }
1.599 albertel 1235: if ($value eq '__undef__') {
1236: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1237: $value=undef;
1238: }
1239: &make_room($id,$value,$debug);
1240: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1241: return ($value,1);
1242: }
1243:
1244: sub do_cache_new {
1245: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1246: $id=&make_key($name,$id);
1.599 albertel 1247: my $setvalue=$value;
1248: if (!defined($setvalue)) {
1249: $setvalue='__undef__';
1250: }
1.623 albertel 1251: if (!defined($time) ) {
1252: $time=600;
1253: }
1.599 albertel 1254: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.910 albertel 1255: my $result = $memcache->set($id,$setvalue,$time);
1256: if (! $result) {
1.872 albertel 1257: &logthis("caching of id -> $id failed");
1.910 albertel 1258: $memcache->disconnect_all();
1.872 albertel 1259: }
1.600 albertel 1260: # need to make a copy of $value
1261: #&make_room($id,$value,$debug);
1.599 albertel 1262: return $value;
1263: }
1264:
1265: sub make_room {
1266: my ($id,$value,$debug)=@_;
1267: $remembered{$id}=$value;
1268: if ($to_remember<0) { return; }
1269: $accessed{$id}=[&gettimeofday()];
1270: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1271: my $to_kick;
1272: my $max_time=0;
1273: foreach my $other (keys(%accessed)) {
1274: if (&tv_interval($accessed{$other}) > $max_time) {
1275: $to_kick=$other;
1276: $max_time=&tv_interval($accessed{$other});
1277: }
1278: }
1279: delete($remembered{$to_kick});
1280: delete($accessed{$to_kick});
1281: $kicks++;
1282: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1283: return;
1284: }
1285:
1.599 albertel 1286: sub purge_remembered {
1.604 albertel 1287: #&logthis("Tossing ".scalar(keys(%remembered)));
1288: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1289: undef(%remembered);
1290: undef(%accessed);
1.428 albertel 1291: }
1.70 www 1292: # ------------------------------------- Read an entry from a user's environment
1293:
1294: sub userenvironment {
1295: my ($udom,$unam,@what)=@_;
1296: my %returnhash=();
1297: my @answer=split(/\&/,
1298: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
1299: &homeserver($unam,$udom)));
1300: my $i;
1301: for ($i=0;$i<=$#what;$i++) {
1302: $returnhash{$what[$i]}=&unescape($answer[$i]);
1303: }
1304: return %returnhash;
1.1 albertel 1305: }
1306:
1.617 albertel 1307: # ---------------------------------------------------------- Get a studentphoto
1308: sub studentphoto {
1309: my ($udom,$unam,$ext) = @_;
1310: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1311: if (defined($env{'request.course.id'})) {
1.708 raeburn 1312: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1313: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1314: return(&retrievestudentphoto($udom,$unam,$ext));
1315: } else {
1316: my ($result,$perm_reqd)=
1.707 albertel 1317: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1318: if ($result eq 'ok') {
1319: if (!($perm_reqd eq 'yes')) {
1320: return(&retrievestudentphoto($udom,$unam,$ext));
1321: }
1322: }
1323: }
1324: }
1325: } else {
1326: my ($result,$perm_reqd) =
1.707 albertel 1327: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1328: if ($result eq 'ok') {
1329: if (!($perm_reqd eq 'yes')) {
1330: return(&retrievestudentphoto($udom,$unam,$ext));
1331: }
1332: }
1333: }
1334: return '/adm/lonKaputt/lonlogo_broken.gif';
1335: }
1336:
1337: sub retrievestudentphoto {
1338: my ($udom,$unam,$ext,$type) = @_;
1339: my $home=&Apache::lonnet::homeserver($unam,$udom);
1340: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1341: if ($ret eq 'ok') {
1342: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1343: if ($type eq 'thumbnail') {
1344: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1345: }
1346: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1347: return $tokenurl;
1348: } else {
1349: if ($type eq 'thumbnail') {
1350: return '/adm/lonKaputt/genericstudent_tn.gif';
1351: } else {
1352: return '/adm/lonKaputt/lonlogo_broken.gif';
1353: }
1.617 albertel 1354: }
1355: }
1356:
1.263 www 1357: # -------------------------------------------------------------------- New chat
1358:
1359: sub chatsend {
1.724 raeburn 1360: my ($newentry,$anon,$group)=@_;
1.620 albertel 1361: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1362: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1363: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1364: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1365: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1366: &escape($newentry)).':'.$group,$chome);
1.292 www 1367: }
1368:
1369: # ------------------------------------------ Find current version of a resource
1370:
1371: sub getversion {
1372: my $fname=&clutter(shift);
1373: unless ($fname=~/^\/res\//) { return -1; }
1374: return ¤tversion(&filelocation('',$fname));
1375: }
1376:
1377: sub currentversion {
1378: my $fname=shift;
1.599 albertel 1379: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1380: if (defined($cached)) { return $result; }
1.292 www 1381: my $author=$fname;
1382: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1383: my ($udom,$uname)=split(/\//,$author);
1384: my $home=homeserver($uname,$udom);
1385: if ($home eq 'no_host') {
1386: return -1;
1387: }
1388: my $answer=reply("currentversion:$fname",$home);
1389: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1390: return -1;
1391: }
1.599 albertel 1392: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1393: }
1394:
1.1 albertel 1395: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1396:
1.1 albertel 1397: sub subscribe {
1398: my $fname=shift;
1.761 raeburn 1399: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1400: $fname=~s/[\n\r]//g;
1.1 albertel 1401: my $author=$fname;
1402: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1403: my ($udom,$uname)=split(/\//,$author);
1404: my $home=homeserver($uname,$udom);
1.335 albertel 1405: if ($home eq 'no_host') {
1406: return 'not_found';
1.1 albertel 1407: }
1408: my $answer=reply("sub:$fname",$home);
1.64 www 1409: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1410: $answer.=' by '.$home;
1411: }
1.1 albertel 1412: return $answer;
1413: }
1414:
1.8 www 1415: # -------------------------------------------------------------- Replicate file
1416:
1417: sub repcopy {
1418: my $filename=shift;
1.23 www 1419: $filename=~s/\/+/\//g;
1.607 raeburn 1420: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1421: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1422: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1423: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1424: return &repcopy_userfile($filename);
1425: }
1.532 albertel 1426: $filename=~s/[\n\r]//g;
1.8 www 1427: my $transname="$filename.in.transfer";
1.828 www 1428: # FIXME: this should flock
1.607 raeburn 1429: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1430: my $remoteurl=subscribe($filename);
1.64 www 1431: if ($remoteurl =~ /^con_lost by/) {
1432: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1433: return 'unavailable';
1.8 www 1434: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1435: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1436: return 'not_found';
1.64 www 1437: } elsif ($remoteurl =~ /^rejected by/) {
1438: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1439: return 'forbidden';
1.20 www 1440: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1441: return 'ok';
1.8 www 1442: } else {
1.290 www 1443: my $author=$filename;
1444: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1445: my ($udom,$uname)=split(/\//,$author);
1446: my $home=homeserver($uname,$udom);
1447: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1448: my @parts=split(/\//,$filename);
1449: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1450: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1451: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1452: return 'bad_request';
1.8 www 1453: }
1454: my $count;
1455: for ($count=5;$count<$#parts;$count++) {
1456: $path.="/$parts[$count]";
1457: if ((-e $path)!=1) {
1458: mkdir($path,0777);
1459: }
1460: }
1461: my $ua=new LWP::UserAgent;
1462: my $request=new HTTP::Request('GET',"$remoteurl");
1463: my $response=$ua->request($request,$transname);
1464: if ($response->is_error()) {
1465: unlink($transname);
1466: my $message=$response->status_line;
1.672 albertel 1467: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1468: ." LWP get: $message: $filename</font>");
1.607 raeburn 1469: return 'unavailable';
1.8 www 1470: } else {
1.16 www 1471: if ($remoteurl!~/\.meta$/) {
1472: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1473: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1474: if ($mresponse->is_error()) {
1475: unlink($filename.'.meta');
1476: &logthis(
1.672 albertel 1477: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1478: }
1479: }
1.8 www 1480: rename($transname,$filename);
1.607 raeburn 1481: return 'ok';
1.8 www 1482: }
1.290 www 1483: }
1.8 www 1484: }
1.330 www 1485: }
1486:
1487: # ------------------------------------------------ Get server side include body
1488: sub ssi_body {
1.381 albertel 1489: my ($filelink,%form)=@_;
1.606 matthew 1490: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1491: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1492: }
1.330 www 1493: my $output=($filelink=~/^http\:/?&externalssi($filelink):
1.381 albertel 1494: &ssi($filelink,%form));
1.778 albertel 1495: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1496: $output=~s/^.*?\<body[^\>]*\>//si;
1497: $output=~s/(.*)\<\/body\s*\>.*?$/$1/si;
1.330 www 1498: return $output;
1.8 www 1499: }
1500:
1.15 www 1501: # --------------------------------------------------------- Server Side Include
1502:
1.782 albertel 1503: sub absolute_url {
1504: my ($host_name) = @_;
1505: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1506: if ($host_name eq '') {
1507: $host_name = $ENV{'SERVER_NAME'};
1508: }
1509: return $protocol.$host_name;
1510: }
1511:
1.15 www 1512: sub ssi {
1513:
1.23 www 1514: my ($fn,%form)=@_;
1.15 www 1515:
1516: my $ua=new LWP::UserAgent;
1.23 www 1517:
1518: my $request;
1.711 albertel 1519:
1520: $form{'no_update_last_known'}=1;
1.895 albertel 1521: &Apache::lonenc::check_encrypt(\$fn);
1.23 www 1522: if (%form) {
1.782 albertel 1523: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.201 albertel 1524: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
1.23 www 1525: } else {
1.782 albertel 1526: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1527: }
1528:
1.15 www 1529: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1530: my $response=$ua->request($request);
1531:
1.324 www 1532: return $response->content;
1533: }
1534:
1535: sub externalssi {
1536: my ($url)=@_;
1537: my $ua=new LWP::UserAgent;
1538: my $request=new HTTP::Request('GET',$url);
1539: my $response=$ua->request($request);
1.15 www 1540: return $response->content;
1541: }
1.254 www 1542:
1.492 albertel 1543: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1544:
1545: sub allowuploaded {
1546: my ($srcurl,$url)=@_;
1547: $url=&clutter(&declutter($url));
1548: my $dir=$url;
1549: $dir=~s/\/[^\/]+$//;
1550: my %httpref=();
1551: my $httpurl=&hreflocation('',$url);
1552: $httpref{'httpref.'.$httpurl}=$srcurl;
1553: &Apache::lonnet::appenv(%httpref);
1.254 www 1554: }
1.477 raeburn 1555:
1.478 albertel 1556: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1557: # input: action, courseID, current domain, intended
1.637 raeburn 1558: # path to file, source of file, instruction to parse file for objects,
1559: # ref to hash for embedded objects,
1560: # ref to hash for codebase of java objects.
1561: #
1.485 raeburn 1562: # output: url to file (if action was uploaddoc),
1563: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1564: #
1.478 albertel 1565: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1566: # course.
1.477 raeburn 1567: #
1.478 albertel 1568: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1569: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1570: # course's home server.
1.477 raeburn 1571: #
1.478 albertel 1572: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1573: # be copied from $source (current location) to
1574: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1575: # and will then be copied to
1576: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1577: # course's home server.
1.485 raeburn 1578: #
1.481 raeburn 1579: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1580: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1581: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1582: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1583: # in course's home server.
1.637 raeburn 1584: #
1.477 raeburn 1585:
1586: sub process_coursefile {
1.638 albertel 1587: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1588: my $fetchresult;
1.638 albertel 1589: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1590: if ($action eq 'propagate') {
1.638 albertel 1591: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1592: $home);
1.481 raeburn 1593: } else {
1.477 raeburn 1594: my $fpath = '';
1595: my $fname = $file;
1.478 albertel 1596: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1597: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1598: my $filepath = &build_filepath($fpath);
1.481 raeburn 1599: if ($action eq 'copy') {
1600: if ($source eq '') {
1601: $fetchresult = 'no source file';
1602: return $fetchresult;
1603: } else {
1604: my $destination = $filepath.'/'.$fname;
1605: rename($source,$destination);
1606: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1607: $home);
1.481 raeburn 1608: }
1609: } elsif ($action eq 'uploaddoc') {
1610: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 1611: print $fh $env{'form.'.$source};
1.481 raeburn 1612: close($fh);
1.637 raeburn 1613: if ($parser eq 'parse') {
1614: my $parse_result = &extract_embedded_items($filepath,$fname,$allfiles,$codebase);
1615: unless ($parse_result eq 'ok') {
1616: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
1617: }
1618: }
1.477 raeburn 1619: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1620: $home);
1.481 raeburn 1621: if ($fetchresult eq 'ok') {
1622: return '/uploaded/'.$fpath.'/'.$fname;
1623: } else {
1624: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1625: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 1626: return '/adm/notfound.html';
1627: }
1.477 raeburn 1628: }
1629: }
1.485 raeburn 1630: unless ( $fetchresult eq 'ok') {
1.477 raeburn 1631: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1632: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 1633: }
1634: return $fetchresult;
1635: }
1636:
1.637 raeburn 1637: sub build_filepath {
1638: my ($fpath) = @_;
1639: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
1640: unless ($fpath eq '') {
1641: my @parts=split('/',$fpath);
1642: foreach my $part (@parts) {
1643: $filepath.= '/'.$part;
1644: if ((-e $filepath)!=1) {
1645: mkdir($filepath,0777);
1646: }
1647: }
1648: }
1649: return $filepath;
1650: }
1651:
1652: sub store_edited_file {
1.638 albertel 1653: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 1654: my $file = $primary_url;
1655: $file =~ s#^/uploaded/$docudom/$docuname/##;
1656: my $fpath = '';
1657: my $fname = $file;
1658: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1659: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1660: my $filepath = &build_filepath($fpath);
1661: open(my $fh,'>'.$filepath.'/'.$fname);
1662: print $fh $content;
1663: close($fh);
1.638 albertel 1664: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 1665: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1666: $home);
1.637 raeburn 1667: if ($$fetchresult eq 'ok') {
1668: return '/uploaded/'.$fpath.'/'.$fname;
1669: } else {
1.638 albertel 1670: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1671: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 1672: return '/adm/notfound.html';
1673: }
1674: }
1675:
1.531 albertel 1676: sub clean_filename {
1.831 albertel 1677: my ($fname,$args)=@_;
1.315 www 1678: # Replace Windows backslashes by forward slashes
1.257 www 1679: $fname=~s/\\/\//g;
1.831 albertel 1680: if (!$args->{'keep_path'}) {
1681: # Get rid of everything but the actual filename
1682: $fname=~s/^.*\/([^\/]+)$/$1/;
1683: }
1.315 www 1684: # Replace spaces by underscores
1685: $fname=~s/\s+/\_/g;
1686: # Replace all other weird characters by nothing
1.831 albertel 1687: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 1688: # Replace all .\d. sequences with _\d. so they no longer look like version
1689: # numbers
1690: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 1691: return $fname;
1692: }
1693:
1.608 albertel 1694: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 1695: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 1696: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 1697: # $coursedoc - if true up to the current course
1698: # if false
1699: # $subdir - directory in userfile to store the file into
1.858 raeburn 1700: # $parser - instruction to parse file for objects ($parser = parse)
1701: # $allfiles - reference to hash for embedded objects
1702: # $codebase - reference to hash for codebase of java objects
1703: # $desuname - username for permanent storage of uploaded file
1704: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 1705: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
1706: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 1707: #
1.686 albertel 1708: # output: url of file in userspace, or error: <message>
1709: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 1710:
1711:
1.531 albertel 1712: sub userfileupload {
1.860 raeburn 1713: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
1714: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 1715: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 1716: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 1717: $fname=&clean_filename($fname);
1.315 www 1718: # See if there is anything left
1.257 www 1719: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 1720: chop($env{'form.'.$formname});
1.523 raeburn 1721: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
1722: my $now = time;
1723: my $filepath = 'tmp/helprequests/'.$now;
1724: my @parts=split(/\//,$filepath);
1725: my $fullpath = $perlvar{'lonDaemons'};
1726: for (my $i=0;$i<@parts;$i++) {
1727: $fullpath .= '/'.$parts[$i];
1728: if ((-e $fullpath)!=1) {
1729: mkdir($fullpath,0777);
1730: }
1731: }
1732: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 1733: print $fh $env{'form.'.$formname};
1.523 raeburn 1734: close($fh);
1.741 raeburn 1735: return $fullpath.'/'.$fname;
1736: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
1737: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
1738: '_'.$env{'user.domain'}.'/pending';
1739: my @parts=split(/\//,$filepath);
1740: my $fullpath = $perlvar{'lonDaemons'};
1741: for (my $i=0;$i<@parts;$i++) {
1742: $fullpath .= '/'.$parts[$i];
1743: if ((-e $fullpath)!=1) {
1744: mkdir($fullpath,0777);
1745: }
1746: }
1747: open(my $fh,'>'.$fullpath.'/'.$fname);
1748: print $fh $env{'form.'.$formname};
1749: close($fh);
1750: return $fullpath.'/'.$fname;
1.523 raeburn 1751: }
1.719 banghart 1752:
1.258 www 1753: # Create the directory if not present
1.493 albertel 1754: $fname="$subdir/$fname";
1.259 www 1755: if ($coursedoc) {
1.638 albertel 1756: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1757: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 1758: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 1759: return &finishuserfileupload($docuname,$docudom,
1760: $formname,$fname,$parser,$allfiles,
1.860 raeburn 1761: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 1762: } else {
1.620 albertel 1763: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 1764: return &process_coursefile('uploaddoc',$docuname,$docudom,
1765: $fname,$formname,$parser,
1766: $allfiles,$codebase);
1.481 raeburn 1767: }
1.719 banghart 1768: } elsif (defined($destuname)) {
1769: my $docuname=$destuname;
1770: my $docudom=$destudom;
1.860 raeburn 1771: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
1772: $parser,$allfiles,$codebase,
1773: $thumbwidth,$thumbheight);
1.719 banghart 1774:
1.259 www 1775: } else {
1.638 albertel 1776: my $docuname=$env{'user.name'};
1777: my $docudom=$env{'user.domain'};
1.714 raeburn 1778: if (exists($env{'form.group'})) {
1779: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1780: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1781: }
1.860 raeburn 1782: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
1783: $parser,$allfiles,$codebase,
1784: $thumbwidth,$thumbheight);
1.259 www 1785: }
1.271 www 1786: }
1787:
1788: sub finishuserfileupload {
1.860 raeburn 1789: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1790: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 1791: my $path=$docudom.'/'.$docuname.'/';
1.258 www 1792: my $filepath=$perlvar{'lonDocRoot'};
1.860 raeburn 1793: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 1794: $file=$fname;
1795: if ($fname=~m|/|) {
1796: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
1797: $path.=$fnamepath.'/';
1798: }
1.259 www 1799: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 1800: my $count;
1801: for ($count=4;$count<=$#parts;$count++) {
1802: $filepath.="/$parts[$count]";
1803: if ((-e $filepath)!=1) {
1804: mkdir($filepath,0777);
1805: }
1806: }
1807: # Save the file
1808: {
1.701 albertel 1809: if (!open(FH,'>'.$filepath.'/'.$file)) {
1810: &logthis('Failed to create '.$filepath.'/'.$file);
1811: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
1812: return '/adm/notfound.html';
1813: }
1814: if (!print FH ($env{'form.'.$formname})) {
1815: &logthis('Failed to write to '.$filepath.'/'.$file);
1816: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
1817: return '/adm/notfound.html';
1818: }
1.570 albertel 1819: close(FH);
1.258 www 1820: }
1.637 raeburn 1821: if ($parser eq 'parse') {
1.638 albertel 1822: my $parse_result = &extract_embedded_items($filepath,$file,$allfiles,
1823: $codebase);
1.637 raeburn 1824: unless ($parse_result eq 'ok') {
1.638 albertel 1825: &logthis('Failed to parse '.$filepath.$file.
1826: ' for embedded media: '.$parse_result);
1.637 raeburn 1827: }
1828: }
1.860 raeburn 1829: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
1830: my $input = $filepath.'/'.$file;
1831: my $output = $filepath.'/'.'tn-'.$file;
1832: my $thumbsize = $thumbwidth.'x'.$thumbheight;
1833: system("convert -sample $thumbsize $input $output");
1834: if (-e $filepath.'/'.'tn-'.$file) {
1835: $fetchthumb = 1;
1836: }
1837: }
1.858 raeburn 1838:
1.259 www 1839: # Notify homeserver to grep it
1840: #
1.638 albertel 1841: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 1842: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 1843: if ($fetchresult eq 'ok') {
1.860 raeburn 1844: if ($fetchthumb) {
1845: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
1846: if ($thumbresult ne 'ok') {
1847: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
1848: $docuhome.': '.$thumbresult);
1849: }
1850: }
1.259 www 1851: #
1.258 www 1852: # Return the URL to it
1.494 albertel 1853: return '/uploaded/'.$path.$file;
1.263 www 1854: } else {
1.494 albertel 1855: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
1856: ': '.$fetchresult);
1.263 www 1857: return '/adm/notfound.html';
1.858 raeburn 1858: }
1.493 albertel 1859: }
1860:
1.637 raeburn 1861: sub extract_embedded_items {
1.648 raeburn 1862: my ($filepath,$file,$allfiles,$codebase,$content) = @_;
1.637 raeburn 1863: my @state = ();
1864: my %javafiles = (
1865: codebase => '',
1866: code => '',
1867: archive => ''
1868: );
1869: my %mediafiles = (
1870: src => '',
1871: movie => '',
1872: );
1.648 raeburn 1873: my $p;
1874: if ($content) {
1875: $p = HTML::LCParser->new($content);
1876: } else {
1877: $p = HTML::LCParser->new($filepath.'/'.$file);
1878: }
1.641 albertel 1879: while (my $t=$p->get_token()) {
1.640 albertel 1880: if ($t->[0] eq 'S') {
1881: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 1882: push(@state, $tagname);
1.648 raeburn 1883: if (lc($tagname) eq 'allow') {
1884: &add_filetype($allfiles,$attr->{'src'},'src');
1885: }
1.640 albertel 1886: if (lc($tagname) eq 'img') {
1887: &add_filetype($allfiles,$attr->{'src'},'src');
1888: }
1.886 albertel 1889: if (lc($tagname) eq 'a') {
1890: &add_filetype($allfiles,$attr->{'href'},'href');
1891: }
1.645 raeburn 1892: if (lc($tagname) eq 'script') {
1893: if ($attr->{'archive'} =~ /\.jar$/i) {
1894: &add_filetype($allfiles,$attr->{'archive'},'archive');
1895: } else {
1896: &add_filetype($allfiles,$attr->{'src'},'src');
1897: }
1898: }
1899: if (lc($tagname) eq 'link') {
1900: if (lc($attr->{'rel'}) eq 'stylesheet') {
1901: &add_filetype($allfiles,$attr->{'href'},'href');
1902: }
1903: }
1.640 albertel 1904: if (lc($tagname) eq 'object' ||
1905: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
1906: foreach my $item (keys(%javafiles)) {
1907: $javafiles{$item} = '';
1908: }
1909: }
1910: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
1911: my $name = lc($attr->{'name'});
1912: foreach my $item (keys(%javafiles)) {
1913: if ($name eq $item) {
1914: $javafiles{$item} = $attr->{'value'};
1915: last;
1916: }
1917: }
1918: foreach my $item (keys(%mediafiles)) {
1919: if ($name eq $item) {
1920: &add_filetype($allfiles, $attr->{'value'}, 'value');
1921: last;
1922: }
1923: }
1924: }
1925: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
1926: foreach my $item (keys(%javafiles)) {
1927: if ($attr->{$item}) {
1928: $javafiles{$item} = $attr->{$item};
1929: last;
1930: }
1931: }
1932: foreach my $item (keys(%mediafiles)) {
1933: if ($attr->{$item}) {
1934: &add_filetype($allfiles,$attr->{$item},$item);
1935: last;
1936: }
1937: }
1938: }
1939: } elsif ($t->[0] eq 'E') {
1940: my ($tagname) = ($t->[1]);
1941: if ($javafiles{'codebase'} ne '') {
1942: $javafiles{'codebase'} .= '/';
1943: }
1944: if (lc($tagname) eq 'applet' ||
1945: lc($tagname) eq 'object' ||
1946: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
1947: ) {
1948: foreach my $item (keys(%javafiles)) {
1949: if ($item ne 'codebase' && $javafiles{$item} ne '') {
1950: my $file=$javafiles{'codebase'}.$javafiles{$item};
1951: &add_filetype($allfiles,$file,$item);
1952: }
1953: }
1954: }
1955: pop @state;
1956: }
1957: }
1.637 raeburn 1958: return 'ok';
1959: }
1960:
1.639 albertel 1961: sub add_filetype {
1962: my ($allfiles,$file,$type)=@_;
1963: if (exists($allfiles->{$file})) {
1964: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
1965: push(@{$allfiles->{$file}}, &escape($type));
1966: }
1967: } else {
1968: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 1969: }
1970: }
1971:
1.493 albertel 1972: sub removeuploadedurl {
1973: my ($url)=@_;
1974: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 1975: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 1976: }
1977:
1978: sub removeuserfile {
1979: my ($docuname,$docudom,$fname)=@_;
1980: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 1981: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1982: if ($result eq 'ok') {
1983: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
1984: my $metafile = $fname.'.meta';
1985: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 1986: my $url = "/uploaded/$docudom/$docuname/$fname";
1987: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 1988: my $sqlresult =
1.823 albertel 1989: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 1990: 'portfolio_metadata',$group,
1991: 'delete');
1.798 raeburn 1992: }
1993: }
1994: return $result;
1.257 www 1995: }
1.15 www 1996:
1.530 albertel 1997: sub mkdiruserfile {
1998: my ($docuname,$docudom,$dir)=@_;
1999: my $home=&homeserver($docuname,$docudom);
2000: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
2001: }
2002:
1.531 albertel 2003: sub renameuserfile {
2004: my ($docuname,$docudom,$old,$new)=@_;
2005: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 2006: my $result = &reply("renameuserfile:$docudom:$docuname:".
2007: &escape("$old").':'.&escape("$new"),$home);
2008: if ($result eq 'ok') {
2009: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
2010: my $oldmeta = $old.'.meta';
2011: my $newmeta = $new.'.meta';
2012: my $metaresult =
2013: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 2014: my $url = "/uploaded/$docudom/$docuname/$old";
2015: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 2016: my $sqlresult =
1.823 albertel 2017: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 2018: 'portfolio_metadata',$group,
2019: 'delete');
1.798 raeburn 2020: }
2021: }
2022: return $result;
1.531 albertel 2023: }
2024:
1.14 www 2025: # ------------------------------------------------------------------------- Log
2026:
2027: sub log {
2028: my ($dom,$nam,$hom,$what)=@_;
1.47 www 2029: return critical("log:$dom:$nam:$what",$hom);
1.157 www 2030: }
2031:
2032: # ------------------------------------------------------------------ Course Log
1.352 www 2033: #
2034: # This routine flushes several buffers of non-mission-critical nature
2035: #
1.157 www 2036:
2037: sub flushcourselogs {
1.352 www 2038: &logthis('Flushing log buffers');
2039: #
2040: # course logs
2041: # This is a log of all transactions in a course, which can be used
2042: # for data mining purposes
2043: #
2044: # It also collects the courseid database, which lists last transaction
2045: # times and course titles for all courseids
2046: #
2047: my %courseidbuffer=();
1.800 albertel 2048: foreach my $crsid (keys %courselogs) {
1.352 www 2049: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 2050: &escape($courselogs{$crsid}),
2051: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 2052: delete $courselogs{$crsid};
2053: } else {
2054: &logthis('Failed to flush log buffer for '.$crsid);
2055: if (length($courselogs{$crsid})>40000) {
1.672 albertel 2056: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 2057: " exceeded maximum size, deleting.</font>");
2058: delete $courselogs{$crsid};
2059: }
1.352 www 2060: }
2061: if ($courseidbuffer{$coursehombuf{$crsid}}) {
2062: $courseidbuffer{$coursehombuf{$crsid}}.='&'.
1.516 raeburn 2063: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 2064: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.352 www 2065: } else {
2066: $courseidbuffer{$coursehombuf{$crsid}}=
1.516 raeburn 2067: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 2068: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.571 raeburn 2069: }
1.191 harris41 2070: }
1.352 www 2071: #
2072: # Write course id database (reverse lookup) to homeserver of courses
2073: # Is used in pickcourse
2074: #
1.840 albertel 2075: foreach my $crs_home (keys(%courseidbuffer)) {
1.844 albertel 2076: &courseidput(&host_domain($crs_home),$courseidbuffer{$crs_home},
1.840 albertel 2077: $crs_home);
1.352 www 2078: }
2079: #
2080: # File accesses
2081: # Writes to the dynamic metadata of resources to get hit counts, etc.
2082: #
1.449 matthew 2083: foreach my $entry (keys(%accesshash)) {
1.458 matthew 2084: if ($entry =~ /___count$/) {
2085: my ($dom,$name);
1.807 albertel 2086: ($dom,$name,undef)=
1.811 albertel 2087: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 2088: if (! defined($dom) || $dom eq '' ||
2089: ! defined($name) || $name eq '') {
1.620 albertel 2090: my $cid = $env{'request.course.id'};
2091: $dom = $env{'request.'.$cid.'.domain'};
2092: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 2093: }
1.450 matthew 2094: my $value = $accesshash{$entry};
2095: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
2096: my %temphash=($url => $value);
1.449 matthew 2097: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
2098: if ($result eq 'ok') {
2099: delete $accesshash{$entry};
2100: } elsif ($result eq 'unknown_cmd') {
2101: # Target server has old code running on it.
1.450 matthew 2102: my %temphash=($entry => $value);
1.449 matthew 2103: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2104: delete $accesshash{$entry};
2105: }
2106: }
2107: } else {
1.811 albertel 2108: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 2109: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 2110: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
2111: delete $accesshash{$entry};
2112: }
1.185 www 2113: }
1.191 harris41 2114: }
1.352 www 2115: #
2116: # Roles
2117: # Reverse lookup of user roles for course faculty/staff and co-authorship
2118: #
1.800 albertel 2119: foreach my $entry (keys(%userrolehash)) {
1.351 www 2120: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 2121: split(/\:/,$entry);
2122: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 2123: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 2124: $rudom,$runame) eq 'ok') {
2125: delete $userrolehash{$entry};
2126: }
2127: }
1.662 raeburn 2128: #
2129: # Reverse lookup of domain roles (dc, ad, li, sc, au)
2130: #
2131: my %domrolebuffer = ();
2132: foreach my $entry (keys %domainrolehash) {
1.901 albertel 2133: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
1.662 raeburn 2134: if ($domrolebuffer{$rudom}) {
2135: $domrolebuffer{$rudom}.='&'.&escape($entry).
2136: '='.&escape($domainrolehash{$entry});
2137: } else {
2138: $domrolebuffer{$rudom}.=&escape($entry).
2139: '='.&escape($domainrolehash{$entry});
2140: }
2141: delete $domainrolehash{$entry};
2142: }
2143: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2144: my %servers = &get_servers($dom,'library');
2145: foreach my $tryserver (keys(%servers)) {
2146: unless (&reply('domroleput:'.$dom.':'.
2147: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2148: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2149: }
1.662 raeburn 2150: }
2151: }
1.186 www 2152: $dumpcount++;
1.157 www 2153: }
2154:
2155: sub courselog {
2156: my $what=shift;
1.158 www 2157: $what=time.':'.$what;
1.620 albertel 2158: unless ($env{'request.course.id'}) { return ''; }
2159: $coursedombuf{$env{'request.course.id'}}=
2160: $env{'course.'.$env{'request.course.id'}.'.domain'};
2161: $coursenumbuf{$env{'request.course.id'}}=
2162: $env{'course.'.$env{'request.course.id'}.'.num'};
2163: $coursehombuf{$env{'request.course.id'}}=
2164: $env{'course.'.$env{'request.course.id'}.'.home'};
2165: $coursedescrbuf{$env{'request.course.id'}}=
2166: $env{'course.'.$env{'request.course.id'}.'.description'};
2167: $courseinstcodebuf{$env{'request.course.id'}}=
2168: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2169: $courseownerbuf{$env{'request.course.id'}}=
2170: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2171: $coursetypebuf{$env{'request.course.id'}}=
2172: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2173: if (defined $courselogs{$env{'request.course.id'}}) {
2174: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2175: } else {
1.620 albertel 2176: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2177: }
1.620 albertel 2178: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2179: &flushcourselogs();
2180: }
1.158 www 2181: }
2182:
2183: sub courseacclog {
2184: my $fnsymb=shift;
1.620 albertel 2185: unless ($env{'request.course.id'}) { return ''; }
2186: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2187: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2188: $what.=':POST';
1.583 matthew 2189: # FIXME: Probably ought to escape things....
1.800 albertel 2190: foreach my $key (keys(%env)) {
2191: if ($key=~/^form\.(.*)/) {
2192: $what.=':'.$1.'='.$env{$key};
1.158 www 2193: }
1.191 harris41 2194: }
1.583 matthew 2195: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2196: # FIXME: We should not be depending on a form parameter that someone
2197: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2198: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2199: $what.= ':POST';
2200: # FIXME: Probably ought to escape things....
2201: foreach my $element ('courseexp','crsfulltext','crsrelated',
2202: 'crsdiscuss') {
1.620 albertel 2203: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2204: }
2205: }
1.158 www 2206: }
2207: &courselog($what);
1.149 www 2208: }
2209:
1.185 www 2210: sub countacc {
2211: my $url=&declutter(shift);
1.458 matthew 2212: return if (! defined($url) || $url eq '');
1.620 albertel 2213: unless ($env{'request.course.id'}) { return ''; }
2214: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2215: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2216: $accesshash{$key}++;
1.185 www 2217: }
1.349 www 2218:
1.361 www 2219: sub linklog {
2220: my ($from,$to)=@_;
2221: $from=&declutter($from);
2222: $to=&declutter($to);
2223: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2224: $accesshash{$to.'___'.$from.'___goto'}=1;
2225: }
2226:
1.349 www 2227: sub userrolelog {
2228: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2229: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2230: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2231: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2232: ($trole=~/^ta/)) {
1.350 www 2233: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2234: $userrolehash
2235: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2236: =$tend.':'.$tstart;
1.662 raeburn 2237: }
1.898 albertel 2238: if (($env{'request.role'} =~ /dc\./) &&
2239: (($trole=~/^au/) || ($trole=~/^in/) ||
2240: ($trole=~/^cc/) || ($trole=~/^ep/) ||
2241: ($trole=~/^cr/) || ($trole=~/^ta/))) {
2242: $userrolehash
2243: {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
2244: =$tend.':'.$tstart;
2245: }
1.662 raeburn 2246: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2247: ($trole=~/^li/) || ($trole=~/^li/) ||
2248: ($trole=~/^au/) || ($trole=~/^dg/) ||
2249: ($trole=~/^sc/)) {
2250: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2251: $domainrolehash
2252: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2253: = $tend.':'.$tstart;
2254: }
1.351 www 2255: }
2256:
2257: sub get_course_adv_roles {
2258: my $cid=shift;
1.620 albertel 2259: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2260: my %coursehash=&coursedescription($cid);
1.470 www 2261: my %nothide=();
1.800 albertel 2262: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2263: $nothide{join(':',split(/[\@\:]/,$user))}=1;
1.470 www 2264: }
1.351 www 2265: my %returnhash=();
2266: my %dumphash=
2267: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2268: my $now=time;
1.800 albertel 2269: foreach my $entry (keys %dumphash) {
2270: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2271: if (($tstart) && ($tstart<0)) { next; }
2272: if (($tend) && ($tend<$now)) { next; }
2273: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2274: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2275: if ($username eq '' || $domain eq '') { next; }
1.470 www 2276: if ((&privileged($username,$domain)) &&
2277: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2278: if ($role eq 'cr') { next; }
1.351 www 2279: my $key=&plaintext($role);
2280: if ($section) { $key.=' (Sec/Grp '.$section.')'; }
2281: if ($returnhash{$key}) {
2282: $returnhash{$key}.=','.$username.':'.$domain;
2283: } else {
2284: $returnhash{$key}=$username.':'.$domain;
2285: }
1.400 www 2286: }
2287: return %returnhash;
2288: }
2289:
2290: sub get_my_roles {
1.858 raeburn 2291: my ($uname,$udom,$context,$types,$roles,$roledoms)=@_;
1.620 albertel 2292: unless (defined($uname)) { $uname=$env{'user.name'}; }
2293: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.858 raeburn 2294: my %dumphash;
2295: if ($context eq 'userroles') {
2296: %dumphash = &dump('roles',$udom,$uname);
2297: } else {
2298: %dumphash=
1.400 www 2299: &dump('nohist_userroles',$udom,$uname);
1.858 raeburn 2300: }
1.400 www 2301: my %returnhash=();
2302: my $now=time;
1.800 albertel 2303: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2304: my ($role,$tend,$tstart);
2305: if ($context eq 'userroles') {
2306: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2307: } else {
2308: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2309: }
1.400 www 2310: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2311: my $status = 'active';
2312: if (($tend) && ($tend<$now)) {
2313: $status = 'previous';
2314: }
2315: if (($tstart) && ($now<$tstart)) {
2316: $status = 'future';
2317: }
2318: if (ref($types) eq 'ARRAY') {
2319: if (!grep(/^\Q$status\E$/,@{$types})) {
2320: next;
2321: }
2322: } else {
2323: if ($status ne 'active') {
2324: next;
2325: }
2326: }
1.867 raeburn 2327: my ($rolecode,$username,$domain,$section,$area);
2328: if ($context eq 'userroles') {
2329: ($area,$rolecode) = split(/_/,$entry);
2330: (undef,$domain,$username,$section) = split(/\//,$area);
2331: } else {
2332: ($role,$username,$domain,$section) = split(/\:/,$entry);
2333: }
1.832 raeburn 2334: if (ref($roledoms) eq 'ARRAY') {
2335: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2336: next;
2337: }
2338: }
2339: if (ref($roles) eq 'ARRAY') {
2340: if (!grep(/^\Q$role\E$/,@{$roles})) {
2341: next;
2342: }
1.867 raeburn 2343: }
1.400 www 2344: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
1.832 raeburn 2345: }
1.373 www 2346: return %returnhash;
1.399 www 2347: }
2348:
2349: # ----------------------------------------------------- Frontpage Announcements
2350: #
2351: #
2352:
2353: sub postannounce {
2354: my ($server,$text)=@_;
1.844 albertel 2355: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 2356: unless ($text=~/\w/) { $text=''; }
2357: return &reply('setannounce:'.&escape($text),$server);
2358: }
2359:
2360: sub getannounce {
1.448 albertel 2361:
2362: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 2363: my $announcement='';
1.800 albertel 2364: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 2365: close($fh);
1.399 www 2366: if ($announcement=~/\w/) {
2367: return
2368: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 2369: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 2370: } else {
2371: return '';
2372: }
2373: } else {
2374: return '';
2375: }
1.351 www 2376: }
1.353 www 2377:
2378: # ---------------------------------------------------------- Course ID routines
2379: # Deal with domain's nohist_courseid.db files
2380: #
2381:
2382: sub courseidput {
2383: my ($domain,$what,$coursehome)=@_;
2384: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
2385: }
2386:
2387: sub courseiddump {
1.791 raeburn 2388: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
1.353 www 2389: my %returnhash=();
1.355 www 2390: unless ($domfilter) { $domfilter=''; }
1.845 albertel 2391: my %libserv = &all_library();
2392: foreach my $tryserver (keys(%libserv)) {
2393: if ( ( $hostidflag == 1
2394: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
2395: || (!defined($hostidflag)) ) {
2396:
2397: if ($domfilter eq ''
2398: || (&host_domain($tryserver) eq $domfilter)) {
1.800 albertel 2399: foreach my $line (
1.844 albertel 2400: split(/\&/,&reply('courseiddump:'.&host_domain($tryserver).':'.
1.571 raeburn 2401: $sincefilter.':'.&escape($descfilter).':'.
1.791 raeburn 2402: &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
1.354 www 2403: $tryserver))) {
1.800 albertel 2404: my ($key,$value)=split(/\=/,$line,2);
1.506 raeburn 2405: if (($key) && ($value)) {
1.516 raeburn 2406: $returnhash{&unescape($key)}=$value;
1.506 raeburn 2407: }
1.353 www 2408: }
2409: }
2410: }
2411: }
2412: return %returnhash;
2413: }
2414:
1.658 raeburn 2415: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 2416:
2417: sub dcmailput {
1.685 raeburn 2418: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 2419: my $status = &Apache::lonnet::critical(
1.740 www 2420: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
2421: &escape($message),$server);
1.662 raeburn 2422: return $status;
2423: }
2424:
1.658 raeburn 2425: sub dcmaildump {
2426: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 2427: my %returnhash=();
1.846 albertel 2428:
2429: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 2430: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
2431: &escape($enddate).':';
2432: my @esc_senders=map { &escape($_)} @$senders;
2433: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 2434: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 2435: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 2436: if (($key) && ($value)) {
2437: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 2438: }
2439: }
2440: }
2441: return %returnhash;
2442: }
1.662 raeburn 2443: # ---------------------------------------------------------- Domain roles
2444:
2445: sub get_domain_roles {
2446: my ($dom,$roles,$startdate,$enddate)=@_;
2447: if (undef($startdate) || $startdate eq '') {
2448: $startdate = '.';
2449: }
2450: if (undef($enddate) || $enddate eq '') {
2451: $enddate = '.';
2452: }
2453: my $rolelist = join(':',@{$roles});
2454: my %personnel = ();
1.841 albertel 2455:
2456: my %servers = &get_servers($dom,'library');
2457: foreach my $tryserver (keys(%servers)) {
2458: %{$personnel{$tryserver}}=();
2459: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
2460: &escape($startdate).':'.
2461: &escape($enddate).':'.
2462: &escape($rolelist), $tryserver))) {
2463: my ($key,$value) = split(/\=/,$line,2);
2464: if (($key) && ($value)) {
2465: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
2466: }
2467: }
1.662 raeburn 2468: }
2469: return %personnel;
2470: }
1.658 raeburn 2471:
1.149 www 2472: # ----------------------------------------------------------- Check out an item
2473:
1.504 albertel 2474: sub get_first_access {
2475: my ($type,$argsymb)=@_;
1.790 albertel 2476: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2477: if ($argsymb) { $symb=$argsymb; }
2478: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2479: if ($type eq 'map') {
2480: $res=&symbread($map);
2481: } else {
2482: $res=$symb;
2483: }
2484: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
2485: return $times{"$courseid\0$res"};
1.504 albertel 2486: }
2487:
2488: sub set_first_access {
2489: my ($type)=@_;
1.790 albertel 2490: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2491: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2492: if ($type eq 'map') {
2493: $res=&symbread($map);
2494: } else {
2495: $res=$symb;
2496: }
2497: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 2498: if (!$firstaccess) {
1.588 albertel 2499: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 2500: }
2501: return 'already_set';
1.504 albertel 2502: }
2503:
1.149 www 2504: sub checkout {
2505: my ($symb,$tuname,$tudom,$tcrsid)=@_;
2506: my $now=time;
2507: my $lonhost=$perlvar{'lonHostID'};
2508: my $infostr=&escape(
1.234 www 2509: 'CHECKOUTTOKEN&'.
1.149 www 2510: $tuname.'&'.
2511: $tudom.'&'.
2512: $tcrsid.'&'.
2513: $symb.'&'.
2514: $now.'&'.$ENV{'REMOTE_ADDR'});
2515: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 2516: if ($token=~/^error\:/) {
1.672 albertel 2517: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2518: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
2519: "</font>");
2520: return '';
2521: }
2522:
1.149 www 2523: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
2524: $token=~tr/a-z/A-Z/;
2525:
1.153 www 2526: my %infohash=('resource.0.outtoken' => $token,
2527: 'resource.0.checkouttime' => $now,
2528: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 2529:
2530: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2531: return '';
1.151 www 2532: } else {
1.672 albertel 2533: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2534: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
2535: "</font>");
1.149 www 2536: }
2537:
2538: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2539: &escape('Checkout '.$infostr.' - '.
2540: $token)) ne 'ok') {
2541: return '';
1.151 www 2542: } else {
1.672 albertel 2543: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2544: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
2545: "</font>");
1.149 www 2546: }
1.151 www 2547: return $token;
1.149 www 2548: }
2549:
2550: # ------------------------------------------------------------ Check in an item
2551:
2552: sub checkin {
2553: my $token=shift;
1.150 www 2554: my $now=time;
2555: my ($ta,$tb,$lonhost)=split(/\*/,$token);
2556: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 2557: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 2558: $dtoken=~s/\W/\_/g;
1.234 www 2559: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 2560: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
2561:
1.154 www 2562: unless (($tuname) && ($tudom)) {
2563: &logthis('Check in '.$token.' ('.$dtoken.') failed');
2564: return '';
2565: }
2566:
2567: unless (&allowed('mgr',$tcrsid)) {
2568: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 2569: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 2570: return '';
2571: }
2572:
1.153 www 2573: my %infohash=('resource.0.intoken' => $token,
2574: 'resource.0.checkintime' => $now,
2575: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 2576:
2577: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2578: return '';
2579: }
2580:
2581: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2582: &escape('Checkin - '.$token)) ne 'ok') {
2583: return '';
2584: }
2585:
2586: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 2587: }
2588:
2589: # --------------------------------------------- Set Expire Date for Spreadsheet
2590:
2591: sub expirespread {
2592: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 2593: my $cid=$env{'request.course.id'};
1.110 www 2594: if ($cid) {
2595: my $now=time;
2596: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 2597: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
2598: $env{'course.'.$cid.'.num'}.
1.110 www 2599: ':nohist_expirationdates:'.
2600: &escape($key).'='.$now,
1.620 albertel 2601: $env{'course.'.$cid.'.home'})
1.110 www 2602: }
2603: return 'ok';
1.14 www 2604: }
2605:
1.109 www 2606: # ----------------------------------------------------- Devalidate Spreadsheets
2607:
2608: sub devalidate {
1.325 www 2609: my ($symb,$uname,$udom)=@_;
1.620 albertel 2610: my $cid=$env{'request.course.id'};
1.109 www 2611: if ($cid) {
1.391 matthew 2612: # delete the stored spreadsheets for
2613: # - the student level sheet of this user in course's homespace
2614: # - the assessment level sheet for this resource
2615: # for this user in user's homespace
1.553 albertel 2616: # - current conditional state info
1.325 www 2617: my $key=$uname.':'.$udom.':';
1.109 www 2618: my $status=
1.299 matthew 2619: &del('nohist_calculatedsheets',
1.391 matthew 2620: [$key.'studentcalc:'],
1.620 albertel 2621: $env{'course.'.$cid.'.domain'},
2622: $env{'course.'.$cid.'.num'})
1.133 albertel 2623: .' '.
2624: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 2625: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 2626: unless ($status eq 'ok ok') {
2627: &logthis('Could not devalidate spreadsheet '.
1.325 www 2628: $uname.' at '.$udom.' for '.
1.109 www 2629: $symb.': '.$status);
1.133 albertel 2630: }
1.553 albertel 2631: &delenv('user.state.'.$cid);
1.109 www 2632: }
2633: }
2634:
1.265 albertel 2635: sub get_scalar {
2636: my ($string,$end) = @_;
2637: my $value;
2638: if ($$string =~ s/^([^&]*?)($end)/$2/) {
2639: $value = $1;
2640: } elsif ($$string =~ s/^([^&]*?)&//) {
2641: $value = $1;
2642: }
2643: return &unescape($value);
2644: }
2645:
2646: sub array2str {
2647: my (@array) = @_;
2648: my $result=&arrayref2str(\@array);
2649: $result=~s/^__ARRAY_REF__//;
2650: $result=~s/__END_ARRAY_REF__$//;
2651: return $result;
2652: }
2653:
1.204 albertel 2654: sub arrayref2str {
2655: my ($arrayref) = @_;
1.265 albertel 2656: my $result='__ARRAY_REF__';
1.204 albertel 2657: foreach my $elem (@$arrayref) {
1.265 albertel 2658: if(ref($elem) eq 'ARRAY') {
2659: $result.=&arrayref2str($elem).'&';
2660: } elsif(ref($elem) eq 'HASH') {
2661: $result.=&hashref2str($elem).'&';
2662: } elsif(ref($elem)) {
2663: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 2664: } else {
2665: $result.=&escape($elem).'&';
2666: }
2667: }
2668: $result=~s/\&$//;
1.265 albertel 2669: $result .= '__END_ARRAY_REF__';
1.204 albertel 2670: return $result;
2671: }
2672:
1.168 albertel 2673: sub hash2str {
1.204 albertel 2674: my (%hash) = @_;
2675: my $result=&hashref2str(\%hash);
1.265 albertel 2676: $result=~s/^__HASH_REF__//;
2677: $result=~s/__END_HASH_REF__$//;
1.204 albertel 2678: return $result;
2679: }
2680:
2681: sub hashref2str {
2682: my ($hashref)=@_;
1.265 albertel 2683: my $result='__HASH_REF__';
1.800 albertel 2684: foreach my $key (sort(keys(%$hashref))) {
2685: if (ref($key) eq 'ARRAY') {
2686: $result.=&arrayref2str($key).'=';
2687: } elsif (ref($key) eq 'HASH') {
2688: $result.=&hashref2str($key).'=';
2689: } elsif (ref($key)) {
1.265 albertel 2690: $result.='=';
1.800 albertel 2691: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 2692: } else {
1.800 albertel 2693: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 2694: }
2695:
1.800 albertel 2696: if(ref($hashref->{$key}) eq 'ARRAY') {
2697: $result.=&arrayref2str($hashref->{$key}).'&';
2698: } elsif(ref($hashref->{$key}) eq 'HASH') {
2699: $result.=&hashref2str($hashref->{$key}).'&';
2700: } elsif(ref($hashref->{$key})) {
1.265 albertel 2701: $result.='&';
1.800 albertel 2702: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 2703: } else {
1.800 albertel 2704: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 2705: }
2706: }
1.168 albertel 2707: $result=~s/\&$//;
1.265 albertel 2708: $result .= '__END_HASH_REF__';
1.168 albertel 2709: return $result;
2710: }
2711:
2712: sub str2hash {
1.265 albertel 2713: my ($string)=@_;
2714: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
2715: return %$hash;
2716: }
2717:
2718: sub str2hashref {
1.168 albertel 2719: my ($string) = @_;
1.265 albertel 2720:
2721: my %hash;
2722:
2723: if($string !~ /^__HASH_REF__/) {
2724: if (! ($string eq '' || !defined($string))) {
2725: $hash{'error'}='Not hash reference';
2726: }
2727: return (\%hash, $string);
2728: }
2729:
2730: $string =~ s/^__HASH_REF__//;
2731:
2732: while($string !~ /^__END_HASH_REF__/) {
2733: #key
2734: my $key='';
2735: if($string =~ /^__HASH_REF__/) {
2736: ($key, $string)=&str2hashref($string);
2737: if(defined($key->{'error'})) {
2738: $hash{'error'}='Bad data';
2739: return (\%hash, $string);
2740: }
2741: } elsif($string =~ /^__ARRAY_REF__/) {
2742: ($key, $string)=&str2arrayref($string);
2743: if($key->[0] eq 'Array reference error') {
2744: $hash{'error'}='Bad data';
2745: return (\%hash, $string);
2746: }
2747: } else {
2748: $string =~ s/^(.*?)=//;
1.267 albertel 2749: $key=&unescape($1);
1.265 albertel 2750: }
2751: $string =~ s/^=//;
2752:
2753: #value
2754: my $value='';
2755: if($string =~ /^__HASH_REF__/) {
2756: ($value, $string)=&str2hashref($string);
2757: if(defined($value->{'error'})) {
2758: $hash{'error'}='Bad data';
2759: return (\%hash, $string);
2760: }
2761: } elsif($string =~ /^__ARRAY_REF__/) {
2762: ($value, $string)=&str2arrayref($string);
2763: if($value->[0] eq 'Array reference error') {
2764: $hash{'error'}='Bad data';
2765: return (\%hash, $string);
2766: }
2767: } else {
2768: $value=&get_scalar(\$string,'__END_HASH_REF__');
2769: }
2770: $string =~ s/^&//;
2771:
2772: $hash{$key}=$value;
1.204 albertel 2773: }
1.265 albertel 2774:
2775: $string =~ s/^__END_HASH_REF__//;
2776:
2777: return (\%hash, $string);
1.204 albertel 2778: }
2779:
2780: sub str2array {
1.265 albertel 2781: my ($string)=@_;
2782: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
2783: return @$array;
2784: }
2785:
2786: sub str2arrayref {
1.204 albertel 2787: my ($string) = @_;
1.265 albertel 2788: my @array;
2789:
2790: if($string !~ /^__ARRAY_REF__/) {
2791: if (! ($string eq '' || !defined($string))) {
2792: $array[0]='Array reference error';
2793: }
2794: return (\@array, $string);
2795: }
2796:
2797: $string =~ s/^__ARRAY_REF__//;
2798:
2799: while($string !~ /^__END_ARRAY_REF__/) {
2800: my $value='';
2801: if($string =~ /^__HASH_REF__/) {
2802: ($value, $string)=&str2hashref($string);
2803: if(defined($value->{'error'})) {
2804: $array[0] ='Array reference error';
2805: return (\@array, $string);
2806: }
2807: } elsif($string =~ /^__ARRAY_REF__/) {
2808: ($value, $string)=&str2arrayref($string);
2809: if($value->[0] eq 'Array reference error') {
2810: $array[0] ='Array reference error';
2811: return (\@array, $string);
2812: }
2813: } else {
2814: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
2815: }
2816: $string =~ s/^&//;
2817:
2818: push(@array, $value);
1.191 harris41 2819: }
1.265 albertel 2820:
2821: $string =~ s/^__END_ARRAY_REF__//;
2822:
2823: return (\@array, $string);
1.168 albertel 2824: }
2825:
1.167 albertel 2826: # -------------------------------------------------------------------Temp Store
2827:
1.168 albertel 2828: sub tmpreset {
2829: my ($symb,$namespace,$domain,$stuname) = @_;
2830: if (!$symb) {
2831: $symb=&symbread();
1.620 albertel 2832: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2833: }
2834: $symb=escape($symb);
2835:
1.620 albertel 2836: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 2837: $namespace=~s/\//\_/g;
2838: $namespace=~s/\W//g;
2839:
1.620 albertel 2840: if (!$domain) { $domain=$env{'user.domain'}; }
2841: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2842: if ($domain eq 'public' && $stuname eq 'public') {
2843: $stuname=$ENV{'REMOTE_ADDR'};
2844: }
1.168 albertel 2845: my $path=$perlvar{'lonDaemons'}.'/tmp';
2846: my %hash;
2847: if (tie(%hash,'GDBM_File',
2848: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2849: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2850: foreach my $key (keys %hash) {
1.180 albertel 2851: if ($key=~ /:$symb/) {
1.168 albertel 2852: delete($hash{$key});
2853: }
2854: }
2855: }
2856: }
2857:
1.167 albertel 2858: sub tmpstore {
1.168 albertel 2859: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2860:
2861: if (!$symb) {
2862: $symb=&symbread();
1.620 albertel 2863: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2864: }
2865: $symb=escape($symb);
2866:
2867: if (!$namespace) {
2868: # I don't think we would ever want to store this for a course.
2869: # it seems this will only be used if we don't have a course.
1.620 albertel 2870: #$namespace=$env{'request.course.id'};
1.168 albertel 2871: #if (!$namespace) {
1.620 albertel 2872: $namespace=$env{'request.state'};
1.168 albertel 2873: #}
2874: }
2875: $namespace=~s/\//\_/g;
2876: $namespace=~s/\W//g;
1.620 albertel 2877: if (!$domain) { $domain=$env{'user.domain'}; }
2878: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2879: if ($domain eq 'public' && $stuname eq 'public') {
2880: $stuname=$ENV{'REMOTE_ADDR'};
2881: }
1.168 albertel 2882: my $now=time;
2883: my %hash;
2884: my $path=$perlvar{'lonDaemons'}.'/tmp';
2885: if (tie(%hash,'GDBM_File',
2886: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2887: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2888: $hash{"version:$symb"}++;
2889: my $version=$hash{"version:$symb"};
2890: my $allkeys='';
2891: foreach my $key (keys(%$storehash)) {
2892: $allkeys.=$key.':';
1.591 albertel 2893: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 2894: }
2895: $hash{"$version:$symb:timestamp"}=$now;
2896: $allkeys.='timestamp';
2897: $hash{"$version:keys:$symb"}=$allkeys;
2898: if (untie(%hash)) {
2899: return 'ok';
2900: } else {
2901: return "error:$!";
2902: }
2903: } else {
2904: return "error:$!";
2905: }
2906: }
1.167 albertel 2907:
1.168 albertel 2908: # -----------------------------------------------------------------Temp Restore
1.167 albertel 2909:
1.168 albertel 2910: sub tmprestore {
2911: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 2912:
1.168 albertel 2913: if (!$symb) {
2914: $symb=&symbread();
1.620 albertel 2915: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2916: }
2917: $symb=escape($symb);
2918:
1.620 albertel 2919: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 2920:
1.620 albertel 2921: if (!$domain) { $domain=$env{'user.domain'}; }
2922: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2923: if ($domain eq 'public' && $stuname eq 'public') {
2924: $stuname=$ENV{'REMOTE_ADDR'};
2925: }
1.168 albertel 2926: my %returnhash;
2927: $namespace=~s/\//\_/g;
2928: $namespace=~s/\W//g;
2929: my %hash;
2930: my $path=$perlvar{'lonDaemons'}.'/tmp';
2931: if (tie(%hash,'GDBM_File',
2932: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2933: &GDBM_READER(),0640)) {
1.168 albertel 2934: my $version=$hash{"version:$symb"};
2935: $returnhash{'version'}=$version;
2936: my $scope;
2937: for ($scope=1;$scope<=$version;$scope++) {
2938: my $vkeys=$hash{"$scope:keys:$symb"};
2939: my @keys=split(/:/,$vkeys);
2940: my $key;
2941: $returnhash{"$scope:keys"}=$vkeys;
2942: foreach $key (@keys) {
1.591 albertel 2943: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
2944: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 2945: }
2946: }
1.168 albertel 2947: if (!(untie(%hash))) {
2948: return "error:$!";
2949: }
2950: } else {
2951: return "error:$!";
2952: }
2953: return %returnhash;
1.167 albertel 2954: }
2955:
1.9 www 2956: # ----------------------------------------------------------------------- Store
2957:
2958: sub store {
1.124 www 2959: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2960: my $home='';
2961:
1.168 albertel 2962: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2963:
1.213 www 2964: $symb=&symbclean($symb);
1.122 albertel 2965: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2966:
1.620 albertel 2967: if (!$domain) { $domain=$env{'user.domain'}; }
2968: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2969:
2970: &devalidate($symb,$stuname,$domain);
1.109 www 2971:
2972: $symb=escape($symb);
1.187 www 2973: if (!$namespace) {
1.620 albertel 2974: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2975: return '';
2976: }
2977: }
1.620 albertel 2978: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2979:
2980: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2981: $$storehash{'host'}=$perlvar{'lonHostID'};
2982:
1.12 www 2983: my $namevalue='';
1.800 albertel 2984: foreach my $key (keys(%$storehash)) {
2985: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 2986: }
1.12 www 2987: $namevalue=~s/\&$//;
1.187 www 2988: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 2989: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 2990: }
2991:
1.47 www 2992: # -------------------------------------------------------------- Critical Store
2993:
2994: sub cstore {
1.124 www 2995: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2996: my $home='';
2997:
1.168 albertel 2998: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2999:
1.213 www 3000: $symb=&symbclean($symb);
1.122 albertel 3001: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 3002:
1.620 albertel 3003: if (!$domain) { $domain=$env{'user.domain'}; }
3004: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 3005:
3006: &devalidate($symb,$stuname,$domain);
1.109 www 3007:
3008: $symb=escape($symb);
1.187 www 3009: if (!$namespace) {
1.620 albertel 3010: unless ($namespace=$env{'request.course.id'}) {
1.187 www 3011: return '';
3012: }
3013: }
1.620 albertel 3014: if (!$home) { $home=$env{'user.home'}; }
1.447 www 3015:
3016: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
3017: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 3018:
1.47 www 3019: my $namevalue='';
1.800 albertel 3020: foreach my $key (keys(%$storehash)) {
3021: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 3022: }
1.47 www 3023: $namevalue=~s/\&$//;
1.187 www 3024: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 3025: return critical
3026: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 3027: }
3028:
1.9 www 3029: # --------------------------------------------------------------------- Restore
3030:
3031: sub restore {
1.124 www 3032: my ($symb,$namespace,$domain,$stuname) = @_;
3033: my $home='';
3034:
1.168 albertel 3035: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 3036:
1.122 albertel 3037: if (!$symb) {
3038: unless ($symb=escape(&symbread())) { return ''; }
3039: } else {
1.213 www 3040: $symb=&escape(&symbclean($symb));
1.122 albertel 3041: }
1.188 www 3042: if (!$namespace) {
1.620 albertel 3043: unless ($namespace=$env{'request.course.id'}) {
1.188 www 3044: return '';
3045: }
3046: }
1.620 albertel 3047: if (!$domain) { $domain=$env{'user.domain'}; }
3048: if (!$stuname) { $stuname=$env{'user.name'}; }
3049: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 3050: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
3051:
1.12 www 3052: my %returnhash=();
1.800 albertel 3053: foreach my $line (split(/\&/,$answer)) {
3054: my ($name,$value)=split(/\=/,$line);
1.591 albertel 3055: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 3056: }
1.75 www 3057: my $version;
3058: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 3059: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
3060: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 3061: }
1.75 www 3062: }
1.13 www 3063: return %returnhash;
1.34 www 3064: }
3065:
3066: # ---------------------------------------------------------- Course Description
3067:
3068: sub coursedescription {
1.731 albertel 3069: my ($courseid,$args)=@_;
1.34 www 3070: $courseid=~s/^\///;
1.49 www 3071: $courseid=~s/\_/\//g;
1.34 www 3072: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 3073: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 3074: my $normalid=$cdomain.'_'.$cnum;
3075: # need to always cache even if we get errors otherwise we keep
3076: # trying and trying and trying to get the course description.
3077: my %envhash=();
3078: my %returnhash=();
1.731 albertel 3079:
3080: my $expiretime=600;
3081: if ($env{'request.course.id'} eq $normalid) {
3082: $expiretime=120;
3083: }
3084:
3085: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
3086: if (!$args->{'freshen_cache'}
3087: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
3088: foreach my $key (keys(%env)) {
3089: next if ($key !~ /^\Q$prefix\E(.*)/);
3090: my ($setting) = $1;
3091: $returnhash{$setting} = $env{$key};
3092: }
3093: return %returnhash;
3094: }
3095:
3096: # get the data agin
3097: if (!$args->{'one_time'}) {
3098: $envhash{'course.'.$normalid.'.last_cache'}=time;
3099: }
1.811 albertel 3100:
1.34 www 3101: if ($chome ne 'no_host') {
1.302 albertel 3102: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 3103: if (!exists($returnhash{'con_lost'})) {
3104: $returnhash{'home'}= $chome;
3105: $returnhash{'domain'} = $cdomain;
3106: $returnhash{'num'} = $cnum;
1.741 raeburn 3107: if (!defined($returnhash{'type'})) {
3108: $returnhash{'type'} = 'Course';
3109: }
1.130 albertel 3110: while (my ($name,$value) = each %returnhash) {
1.53 www 3111: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 3112: }
1.270 www 3113: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 3114: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 3115: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 3116: $envhash{'course.'.$normalid.'.home'}=$chome;
3117: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
3118: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 3119: }
3120: }
1.731 albertel 3121: if (!$args->{'one_time'}) {
3122: &appenv(%envhash);
3123: }
1.302 albertel 3124: return %returnhash;
1.461 www 3125: }
3126:
3127: # -------------------------------------------------See if a user is privileged
3128:
3129: sub privileged {
3130: my ($username,$domain)=@_;
3131: my $rolesdump=&reply("dump:$domain:$username:roles",
3132: &homeserver($username,$domain));
3133: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
3134: my $now=time;
3135: if ($rolesdump ne '') {
1.800 albertel 3136: foreach my $entry (split(/&/,$rolesdump)) {
3137: if ($entry!~/^rolesdef_/) {
3138: my ($area,$role)=split(/=/,$entry);
1.461 www 3139: $area=~s/\_\w\w$//;
3140: my ($trole,$tend,$tstart)=split(/_/,$role);
3141: if (($trole eq 'dc') || ($trole eq 'su')) {
3142: my $active=1;
3143: if ($tend) {
3144: if ($tend<$now) { $active=0; }
3145: }
3146: if ($tstart) {
3147: if ($tstart>$now) { $active=0; }
3148: }
3149: if ($active) { return 1; }
3150: }
3151: }
3152: }
3153: }
3154: return 0;
1.9 www 3155: }
1.1 albertel 3156:
1.103 harris41 3157: # -------------------------------------------------------- Get user privileges
1.11 www 3158:
3159: sub rolesinit {
3160: my ($domain,$username,$authhost)=@_;
3161: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 3162: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 3163: my %allroles=();
1.678 raeburn 3164: my %allgroups=();
1.11 www 3165: my $now=time;
1.743 albertel 3166: my %userroles = ('user.login.time' => $now);
1.678 raeburn 3167: my $group_privs;
1.11 www 3168:
3169: if ($rolesdump ne '') {
1.800 albertel 3170: foreach my $entry (split(/&/,$rolesdump)) {
3171: if ($entry!~/^rolesdef_/) {
3172: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3173: $area=~s/\_\w\w$//;
1.678 raeburn 3174: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3175: if ($role=~/^cr/) {
1.807 albertel 3176: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3177: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3178: ($tend,$tstart)=split('_',$trest);
3179: } else {
3180: $trole=$role;
3181: }
1.678 raeburn 3182: } elsif ($role =~ m|^gr/|) {
3183: ($trole,$tend,$tstart) = split(/_/,$role);
3184: ($trole,$group_privs) = split(/\//,$trole);
3185: $group_privs = &unescape($group_privs);
1.587 albertel 3186: } else {
3187: ($trole,$tend,$tstart)=split(/_/,$role);
3188: }
1.743 albertel 3189: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3190: $username);
3191: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3192: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3193: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3194: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3195: my $spec=$trole.'.'.$area;
3196: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3197: if ($trole =~ /^cr\//) {
1.567 raeburn 3198: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3199: } elsif ($trole eq 'gr') {
3200: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3201: } else {
1.567 raeburn 3202: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3203: }
1.12 www 3204: }
1.662 raeburn 3205: }
1.191 harris41 3206: }
1.743 albertel 3207: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3208: $userroles{'user.adv'} = $adv;
3209: $userroles{'user.author'} = $author;
1.620 albertel 3210: $env{'user.adv'}=$adv;
1.11 www 3211: }
1.743 albertel 3212: return \%userroles;
1.11 www 3213: }
3214:
1.567 raeburn 3215: sub set_arearole {
3216: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3217: # log the associated role with the area
3218: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3219: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3220: }
3221:
3222: sub custom_roleprivs {
3223: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3224: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3225: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3226: if (&hostname($homsvr) ne '') {
1.567 raeburn 3227: my ($rdummy,$roledef)=
3228: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3229: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3230: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3231: if (defined($syspriv)) {
3232: $$allroles{'cm./'}.=':'.$syspriv;
3233: $$allroles{$spec.'./'}.=':'.$syspriv;
3234: }
3235: if ($tdomain ne '') {
3236: if (defined($dompriv)) {
3237: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3238: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3239: }
3240: if (($trest ne '') && (defined($coursepriv))) {
3241: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3242: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3243: }
3244: }
3245: }
3246: }
3247: }
3248:
1.678 raeburn 3249: sub group_roleprivs {
3250: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3251: my $access = 1;
3252: my $now = time;
3253: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3254: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3255: if ($access) {
1.811 albertel 3256: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3257: $$allgroups{$course}{$group} .=':'.$group_privs;
3258: }
3259: }
1.567 raeburn 3260:
3261: sub standard_roleprivs {
3262: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3263: if (defined($pr{$trole.':s'})) {
3264: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3265: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3266: }
3267: if ($tdomain ne '') {
3268: if (defined($pr{$trole.':d'})) {
3269: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3270: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3271: }
3272: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3273: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3274: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3275: }
3276: }
3277: }
3278:
3279: sub set_userprivs {
1.678 raeburn 3280: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3281: my $author=0;
3282: my $adv=0;
1.678 raeburn 3283: my %grouproles = ();
3284: if (keys(%{$allgroups}) > 0) {
3285: foreach my $role (keys %{$allroles}) {
1.681 raeburn 3286: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3287: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3288: $trole = $1;
3289: $area = $2;
1.681 raeburn 3290: $sec = $3;
3291: $extendedarea = $area.$sec;
3292: if (exists($$allgroups{$area})) {
3293: foreach my $group (keys(%{$$allgroups{$area}})) {
3294: my $spec = $trole.'.'.$extendedarea;
3295: $grouproles{$spec.'.'.$area.'/'.$group} =
3296: $$allgroups{$area}{$group};
1.678 raeburn 3297: }
3298: }
3299: }
3300: }
3301: }
1.800 albertel 3302: foreach my $group (keys(%grouproles)) {
3303: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 3304: }
1.800 albertel 3305: foreach my $role (keys(%{$allroles})) {
3306: my %thesepriv;
3307: if (($role=~/^au/) || ($role=~/^ca/)) { $author=1; }
3308: foreach my $item (split(/:/,$$allroles{$role})) {
3309: if ($item ne '') {
3310: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 3311: if ($restrictions eq '') {
3312: $thesepriv{$privilege}='F';
3313: } elsif ($thesepriv{$privilege} ne 'F') {
3314: $thesepriv{$privilege}.=$restrictions;
3315: }
3316: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
3317: }
3318: }
3319: my $thesestr='';
1.800 albertel 3320: foreach my $priv (keys(%thesepriv)) {
3321: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
3322: }
3323: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 3324: }
3325: return ($author,$adv);
3326: }
3327:
1.12 www 3328: # --------------------------------------------------------------- get interface
3329:
3330: sub get {
1.131 albertel 3331: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3332: my $items='';
1.800 albertel 3333: foreach my $item (@$storearr) {
3334: $items.=&escape($item).'&';
1.191 harris41 3335: }
1.12 www 3336: $items=~s/\&$//;
1.620 albertel 3337: if (!$udomain) { $udomain=$env{'user.domain'}; }
3338: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 3339: my $uhome=&homeserver($uname,$udomain);
3340:
1.133 albertel 3341: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3342: my @pairs=split(/\&/,$rep);
1.273 albertel 3343: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
3344: return @pairs;
3345: }
1.15 www 3346: my %returnhash=();
1.42 www 3347: my $i=0;
1.800 albertel 3348: foreach my $item (@$storearr) {
3349: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 3350: $i++;
1.191 harris41 3351: }
1.15 www 3352: return %returnhash;
1.27 www 3353: }
3354:
3355: # --------------------------------------------------------------- del interface
3356:
3357: sub del {
1.133 albertel 3358: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 3359: my $items='';
1.800 albertel 3360: foreach my $item (@$storearr) {
3361: $items.=&escape($item).'&';
1.191 harris41 3362: }
1.27 www 3363: $items=~s/\&$//;
1.620 albertel 3364: if (!$udomain) { $udomain=$env{'user.domain'}; }
3365: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3366: my $uhome=&homeserver($uname,$udomain);
3367:
3368: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3369: }
3370:
3371: # -------------------------------------------------------------- dump interface
3372:
3373: sub dump {
1.755 albertel 3374: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
3375: if (!$udomain) { $udomain=$env{'user.domain'}; }
3376: if (!$uname) { $uname=$env{'user.name'}; }
3377: my $uhome=&homeserver($uname,$udomain);
3378: if ($regexp) {
3379: $regexp=&escape($regexp);
3380: } else {
3381: $regexp='.';
3382: }
3383: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3384: my @pairs=split(/\&/,$rep);
3385: my %returnhash=();
3386: foreach my $item (@pairs) {
3387: my ($key,$value)=split(/=/,$item,2);
3388: $key = &unescape($key);
3389: next if ($key =~ /^error: 2 /);
3390: $returnhash{$key}=&thaw_unescape($value);
3391: }
3392: return %returnhash;
1.407 www 3393: }
3394:
1.717 albertel 3395: # --------------------------------------------------------- dumpstore interface
3396:
3397: sub dumpstore {
3398: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 3399: if (!$udomain) { $udomain=$env{'user.domain'}; }
3400: if (!$uname) { $uname=$env{'user.name'}; }
3401: my $uhome=&homeserver($uname,$udomain);
3402: if ($regexp) {
3403: $regexp=&escape($regexp);
3404: } else {
3405: $regexp='.';
3406: }
3407: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3408: my @pairs=split(/\&/,$rep);
3409: my %returnhash=();
3410: foreach my $item (@pairs) {
3411: my ($key,$value)=split(/=/,$item,2);
3412: next if ($key =~ /^error: 2 /);
3413: $returnhash{$key}=&thaw_unescape($value);
3414: }
3415: return %returnhash;
1.717 albertel 3416: }
3417:
1.407 www 3418: # -------------------------------------------------------------- keys interface
3419:
3420: sub getkeys {
3421: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 3422: if (!$udomain) { $udomain=$env{'user.domain'}; }
3423: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 3424: my $uhome=&homeserver($uname,$udomain);
3425: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
3426: my @keyarray=();
1.800 albertel 3427: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 3428: next if ($key =~ /^error: 2 /);
1.800 albertel 3429: push(@keyarray,&unescape($key));
1.407 www 3430: }
3431: return @keyarray;
1.318 matthew 3432: }
3433:
1.319 matthew 3434: # --------------------------------------------------------------- currentdump
3435: sub currentdump {
1.328 matthew 3436: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 3437: $courseid = $env{'request.course.id'} if (! defined($courseid));
3438: $sdom = $env{'user.domain'} if (! defined($sdom));
3439: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 3440: my $uhome = &homeserver($sname,$sdom);
3441: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 3442: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 3443: #
1.318 matthew 3444: my %returnhash=();
1.319 matthew 3445: #
3446: if ($rep eq "unknown_cmd") {
3447: # an old lond will not know currentdump
3448: # Do a dump and make it look like a currentdump
1.822 albertel 3449: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 3450: return if ($tmp[0] =~ /^(error:|no_such_host)/);
3451: my %hash = @tmp;
3452: @tmp=();
1.424 matthew 3453: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 3454: } else {
3455: my @pairs=split(/\&/,$rep);
1.800 albertel 3456: foreach my $pair (@pairs) {
3457: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 3458: my ($symb,$param) = split(/:/,$key);
3459: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 3460: &thaw_unescape($value);
1.319 matthew 3461: }
1.191 harris41 3462: }
1.12 www 3463: return %returnhash;
1.424 matthew 3464: }
3465:
3466: sub convert_dump_to_currentdump{
3467: my %hash = %{shift()};
3468: my %returnhash;
3469: # Code ripped from lond, essentially. The only difference
3470: # here is the unescaping done by lonnet::dump(). Conceivably
3471: # we might run in to problems with parameter names =~ /^v\./
3472: while (my ($key,$value) = each(%hash)) {
3473: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 3474: $symb = &unescape($symb);
3475: $param = &unescape($param);
1.424 matthew 3476: next if ($v eq 'version' || $symb eq 'keys');
3477: next if (exists($returnhash{$symb}) &&
3478: exists($returnhash{$symb}->{$param}) &&
3479: $returnhash{$symb}->{'v.'.$param} > $v);
3480: $returnhash{$symb}->{$param}=$value;
3481: $returnhash{$symb}->{'v.'.$param}=$v;
3482: }
3483: #
3484: # Remove all of the keys in the hashes which keep track of
3485: # the version of the parameter.
3486: while (my ($symb,$param_hash) = each(%returnhash)) {
3487: # use a foreach because we are going to delete from the hash.
3488: foreach my $key (keys(%$param_hash)) {
3489: delete($param_hash->{$key}) if ($key =~ /^v\./);
3490: }
3491: }
3492: return \%returnhash;
1.12 www 3493: }
3494:
1.627 albertel 3495: # ------------------------------------------------------ critical inc interface
3496:
3497: sub cinc {
3498: return &inc(@_,'critical');
3499: }
3500:
1.449 matthew 3501: # --------------------------------------------------------------- inc interface
3502:
3503: sub inc {
1.627 albertel 3504: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 3505: if (!$udomain) { $udomain=$env{'user.domain'}; }
3506: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 3507: my $uhome=&homeserver($uname,$udomain);
3508: my $items='';
3509: if (! ref($store)) {
3510: # got a single value, so use that instead
3511: $items = &escape($store).'=&';
3512: } elsif (ref($store) eq 'SCALAR') {
3513: $items = &escape($$store).'=&';
3514: } elsif (ref($store) eq 'ARRAY') {
3515: $items = join('=&',map {&escape($_);} @{$store});
3516: } elsif (ref($store) eq 'HASH') {
3517: while (my($key,$value) = each(%{$store})) {
3518: $items.= &escape($key).'='.&escape($value).'&';
3519: }
3520: }
3521: $items=~s/\&$//;
1.627 albertel 3522: if ($critical) {
3523: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
3524: } else {
3525: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
3526: }
1.449 matthew 3527: }
3528:
1.12 www 3529: # --------------------------------------------------------------- put interface
3530:
3531: sub put {
1.134 albertel 3532: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3533: if (!$udomain) { $udomain=$env{'user.domain'}; }
3534: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3535: my $uhome=&homeserver($uname,$udomain);
1.12 www 3536: my $items='';
1.800 albertel 3537: foreach my $item (keys(%$storehash)) {
3538: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 3539: }
1.12 www 3540: $items=~s/\&$//;
1.134 albertel 3541: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 3542: }
3543:
1.631 albertel 3544: # ------------------------------------------------------------ newput interface
3545:
3546: sub newput {
3547: my ($namespace,$storehash,$udomain,$uname)=@_;
3548: if (!$udomain) { $udomain=$env{'user.domain'}; }
3549: if (!$uname) { $uname=$env{'user.name'}; }
3550: my $uhome=&homeserver($uname,$udomain);
3551: my $items='';
3552: foreach my $key (keys(%$storehash)) {
3553: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
3554: }
3555: $items=~s/\&$//;
3556: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
3557: }
3558:
3559: # --------------------------------------------------------- putstore interface
3560:
1.524 raeburn 3561: sub putstore {
1.715 albertel 3562: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 3563: if (!$udomain) { $udomain=$env{'user.domain'}; }
3564: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 3565: my $uhome=&homeserver($uname,$udomain);
3566: my $items='';
1.715 albertel 3567: foreach my $key (keys(%$storehash)) {
3568: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 3569: }
1.715 albertel 3570: $items=~s/\&$//;
1.716 albertel 3571: my $esc_symb=&escape($symb);
3572: my $esc_v=&escape($version);
1.715 albertel 3573: my $reply =
1.716 albertel 3574: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 3575: $uhome);
3576: if ($reply eq 'unknown_cmd') {
1.716 albertel 3577: # gfall back to way things use to be done
1.715 albertel 3578: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
3579: $uname);
1.524 raeburn 3580: }
1.715 albertel 3581: return $reply;
3582: }
3583:
3584: sub old_putstore {
1.716 albertel 3585: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
3586: if (!$udomain) { $udomain=$env{'user.domain'}; }
3587: if (!$uname) { $uname=$env{'user.name'}; }
3588: my $uhome=&homeserver($uname,$udomain);
3589: my %newstorehash;
1.800 albertel 3590: foreach my $item (keys(%$storehash)) {
3591: my $key = $version.':'.&escape($symb).':'.$item;
3592: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 3593: }
3594: my $items='';
3595: my %allitems = ();
1.800 albertel 3596: foreach my $item (keys(%newstorehash)) {
3597: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 3598: my $key = $1.':keys:'.$2;
3599: $allitems{$key} .= $3.':';
3600: }
1.800 albertel 3601: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 3602: }
1.800 albertel 3603: foreach my $item (keys(%allitems)) {
3604: $allitems{$item} =~ s/\:$//;
3605: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 3606: }
3607: $items=~s/\&$//;
3608: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 3609: }
3610:
1.47 www 3611: # ------------------------------------------------------ critical put interface
3612:
3613: sub cput {
1.134 albertel 3614: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3615: if (!$udomain) { $udomain=$env{'user.domain'}; }
3616: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3617: my $uhome=&homeserver($uname,$udomain);
1.47 www 3618: my $items='';
1.800 albertel 3619: foreach my $item (keys(%$storehash)) {
3620: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 3621: }
1.47 www 3622: $items=~s/\&$//;
1.134 albertel 3623: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3624: }
3625:
3626: # -------------------------------------------------------------- eget interface
3627:
3628: sub eget {
1.133 albertel 3629: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3630: my $items='';
1.800 albertel 3631: foreach my $item (@$storearr) {
3632: $items.=&escape($item).'&';
1.191 harris41 3633: }
1.12 www 3634: $items=~s/\&$//;
1.620 albertel 3635: if (!$udomain) { $udomain=$env{'user.domain'}; }
3636: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3637: my $uhome=&homeserver($uname,$udomain);
3638: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3639: my @pairs=split(/\&/,$rep);
3640: my %returnhash=();
1.42 www 3641: my $i=0;
1.800 albertel 3642: foreach my $item (@$storearr) {
3643: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 3644: $i++;
1.191 harris41 3645: }
1.12 www 3646: return %returnhash;
3647: }
3648:
1.667 albertel 3649: # ------------------------------------------------------------ tmpput interface
3650: sub tmpput {
1.802 raeburn 3651: my ($storehash,$server,$context)=@_;
1.667 albertel 3652: my $items='';
1.800 albertel 3653: foreach my $item (keys(%$storehash)) {
3654: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 3655: }
3656: $items=~s/\&$//;
1.802 raeburn 3657: if (defined($context)) {
3658: $items .= ':'.&escape($context);
3659: }
1.667 albertel 3660: return &reply("tmpput:$items",$server);
3661: }
3662:
3663: # ------------------------------------------------------------ tmpget interface
3664: sub tmpget {
1.688 albertel 3665: my ($token,$server)=@_;
3666: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3667: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 3668: my %returnhash;
3669: foreach my $item (split(/\&/,$rep)) {
3670: my ($key,$value)=split(/=/,$item);
3671: $returnhash{&unescape($key)}=&thaw_unescape($value);
3672: }
3673: return %returnhash;
3674: }
3675:
1.688 albertel 3676: # ------------------------------------------------------------ tmpget interface
3677: sub tmpdel {
3678: my ($token,$server)=@_;
3679: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3680: return &reply("tmpdel:$token",$server);
3681: }
3682:
1.765 albertel 3683: # -------------------------------------------------- portfolio access checking
3684:
3685: sub portfolio_access {
1.766 albertel 3686: my ($requrl) = @_;
1.765 albertel 3687: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
3688: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 3689: if ($result) {
3690: my %setters;
3691: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3692: my ($startblock,$endblock) =
3693: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
3694: if ($startblock && $endblock) {
3695: return 'B';
3696: }
3697: } else {
3698: my ($startblock,$endblock) =
3699: &Apache::loncommon::blockcheck(\%setters,'port');
3700: if ($startblock && $endblock) {
3701: return 'B';
3702: }
3703: }
3704: }
1.765 albertel 3705: if ($result eq 'ok') {
1.766 albertel 3706: return 'F';
1.765 albertel 3707: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 3708: return 'A';
1.765 albertel 3709: }
1.766 albertel 3710: return '';
1.765 albertel 3711: }
3712:
3713: sub get_portfolio_access {
1.767 albertel 3714: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
3715:
3716: if (!ref($access_hash)) {
3717: my $current_perms = &get_portfile_permissions($udom,$unum);
3718: my %access_controls = &get_access_controls($current_perms,$group,
3719: $file_name);
3720: $access_hash = $access_controls{$file_name};
3721: }
3722:
1.765 albertel 3723: my ($public,$guest,@domains,@users,@courses,@groups);
3724: my $now = time;
3725: if (ref($access_hash) eq 'HASH') {
3726: foreach my $key (keys(%{$access_hash})) {
3727: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
3728: if ($start > $now) {
3729: next;
3730: }
3731: if ($end && $end<$now) {
3732: next;
3733: }
3734: if ($scope eq 'public') {
3735: $public = $key;
3736: last;
3737: } elsif ($scope eq 'guest') {
3738: $guest = $key;
3739: } elsif ($scope eq 'domains') {
3740: push(@domains,$key);
3741: } elsif ($scope eq 'users') {
3742: push(@users,$key);
3743: } elsif ($scope eq 'course') {
3744: push(@courses,$key);
3745: } elsif ($scope eq 'group') {
3746: push(@groups,$key);
3747: }
3748: }
3749: if ($public) {
3750: return 'ok';
3751: }
3752: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3753: if ($guest) {
3754: return $guest;
3755: }
3756: } else {
3757: if (@domains > 0) {
3758: foreach my $domkey (@domains) {
3759: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
3760: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
3761: return 'ok';
3762: }
3763: }
3764: }
3765: }
3766: if (@users > 0) {
3767: foreach my $userkey (@users) {
1.865 raeburn 3768: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
3769: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
3770: if (ref($item) eq 'HASH') {
3771: if (($item->{'uname'} eq $env{'user.name'}) &&
3772: ($item->{'udom'} eq $env{'user.domain'})) {
3773: return 'ok';
3774: }
3775: }
3776: }
3777: }
1.765 albertel 3778: }
3779: }
3780: my %roleshash;
3781: my @courses_and_groups = @courses;
3782: push(@courses_and_groups,@groups);
3783: if (@courses_and_groups > 0) {
3784: my (%allgroups,%allroles);
3785: my ($start,$end,$role,$sec,$group);
3786: foreach my $envkey (%env) {
1.811 albertel 3787: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 3788: my $cid = $2.'_'.$3;
3789: if ($1 eq 'gr') {
3790: $group = $4;
3791: $allgroups{$cid}{$group} = $env{$envkey};
3792: } else {
3793: if ($4 eq '') {
3794: $sec = 'none';
3795: } else {
3796: $sec = $4;
3797: }
3798: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3799: }
1.811 albertel 3800: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 3801: my $cid = $2.'_'.$3;
3802: if ($4 eq '') {
3803: $sec = 'none';
3804: } else {
3805: $sec = $4;
3806: }
3807: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3808: }
3809: }
3810: if (keys(%allroles) == 0) {
3811: return;
3812: }
3813: foreach my $key (@courses_and_groups) {
3814: my %content = %{$$access_hash{$key}};
3815: my $cnum = $content{'number'};
3816: my $cdom = $content{'domain'};
3817: my $cid = $cdom.'_'.$cnum;
3818: if (!exists($allroles{$cid})) {
3819: next;
3820: }
3821: foreach my $role_id (keys(%{$content{'roles'}})) {
3822: my @sections = @{$content{'roles'}{$role_id}{'section'}};
3823: my @groups = @{$content{'roles'}{$role_id}{'group'}};
3824: my @status = @{$content{'roles'}{$role_id}{'access'}};
3825: my @roles = @{$content{'roles'}{$role_id}{'role'}};
3826: foreach my $role (keys(%{$allroles{$cid}})) {
3827: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
3828: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
3829: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
3830: if (grep/^all$/,@sections) {
3831: return 'ok';
3832: } else {
3833: if (grep/^$sec$/,@sections) {
3834: return 'ok';
3835: }
3836: }
3837: }
3838: }
3839: if (keys(%{$allgroups{$cid}}) == 0) {
3840: if (grep/^none$/,@groups) {
3841: return 'ok';
3842: }
3843: } else {
3844: if (grep/^all$/,@groups) {
3845: return 'ok';
3846: }
3847: foreach my $group (keys(%{$allgroups{$cid}})) {
3848: if (grep/^$group$/,@groups) {
3849: return 'ok';
3850: }
3851: }
3852: }
3853: }
3854: }
3855: }
3856: }
3857: }
3858: if ($guest) {
3859: return $guest;
3860: }
3861: }
3862: }
3863: return;
3864: }
3865:
3866: sub course_group_datechecker {
3867: my ($dates,$now,$status) = @_;
3868: my ($start,$end) = split(/\./,$dates);
3869: if (!$start && !$end) {
3870: return 'ok';
3871: }
3872: if (grep/^active$/,@{$status}) {
3873: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
3874: return 'ok';
3875: }
3876: }
3877: if (grep/^previous$/,@{$status}) {
3878: if ($end > $now ) {
3879: return 'ok';
3880: }
3881: }
3882: if (grep/^future$/,@{$status}) {
3883: if ($start > $now) {
3884: return 'ok';
3885: }
3886: }
3887: return;
3888: }
3889:
3890: sub parse_portfolio_url {
3891: my ($url) = @_;
3892:
3893: my ($type,$udom,$unum,$group,$file_name);
3894:
1.823 albertel 3895: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 3896: $type = 1;
3897: $udom = $1;
3898: $unum = $2;
3899: $file_name = $3;
1.823 albertel 3900: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 3901: $type = 2;
3902: $udom = $1;
3903: $unum = $2;
3904: $group = $3;
3905: $file_name = $3.'/'.$4;
3906: }
3907: if (wantarray) {
3908: return ($type,$udom,$unum,$file_name,$group);
3909: }
3910: return $type;
3911: }
3912:
3913: sub is_portfolio_url {
3914: my ($url) = @_;
3915: return scalar(&parse_portfolio_url($url));
3916: }
3917:
1.798 raeburn 3918: sub is_portfolio_file {
3919: my ($file) = @_;
1.820 raeburn 3920: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 3921: return 1;
3922: }
3923: return;
3924: }
3925:
3926:
1.341 www 3927: # ---------------------------------------------- Custom access rule evaluation
3928:
3929: sub customaccess {
3930: my ($priv,$uri)=@_;
1.807 albertel 3931: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 3932: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 3933: $udom = &LONCAPA::clean_domain($udom);
3934: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 3935: my $access=0;
1.800 albertel 3936: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
1.893 albertel 3937: my ($effect,$realm,$role,$type)=split(/\:/,$right);
3938: if ($type eq 'user') {
3939: foreach my $scope (split(/\s*\,\s*/,$realm)) {
1.896 albertel 3940: my ($tdom,$tuname)=split(m{/},$scope);
1.893 albertel 3941: if ($tdom) {
3942: if ($tdom ne $env{'user.domain'}) { next; }
3943: }
1.896 albertel 3944: if ($tuname) {
3945: if ($tuname ne $env{'user.name'}) { next; }
1.893 albertel 3946: }
3947: $access=($effect eq 'allow');
3948: last;
3949: }
3950: } else {
3951: if ($role) {
3952: if ($role ne $urole) { next; }
3953: }
3954: foreach my $scope (split(/\s*\,\s*/,$realm)) {
3955: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
3956: if ($tdom) {
3957: if ($tdom ne $udom) { next; }
3958: }
3959: if ($tcrs) {
3960: if ($tcrs ne $ucrs) { next; }
3961: }
3962: if ($tsec) {
3963: if ($tsec ne $usec) { next; }
3964: }
3965: $access=($effect eq 'allow');
3966: last;
3967: }
3968: if ($realm eq '' && $role eq '') {
3969: $access=($effect eq 'allow');
3970: }
1.402 bowersj2 3971: }
1.341 www 3972: }
3973: return $access;
3974: }
3975:
1.103 harris41 3976: # ------------------------------------------------- Check for a user privilege
1.12 www 3977:
3978: sub allowed {
1.810 raeburn 3979: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 3980: my $ver_orguri=$uri;
1.439 www 3981: $uri=&deversion($uri);
1.152 www 3982: my $orguri=$uri;
1.52 www 3983: $uri=&declutter($uri);
1.809 raeburn 3984:
1.810 raeburn 3985: if ($priv eq 'evb') {
3986: # Evade communication block restrictions for specified role in a course
3987: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
3988: return $1;
3989: } else {
3990: return;
3991: }
3992: }
3993:
1.620 albertel 3994: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 3995: # Free bre access to adm and meta resources
1.775 albertel 3996: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 3997: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
3998: && ($priv eq 'bre')) {
1.14 www 3999: return 'F';
1.159 www 4000: }
4001:
1.545 banghart 4002: # Free bre access to user's own portfolio contents
1.714 raeburn 4003: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 4004: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 4005: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 4006: my %setters;
4007: my ($startblock,$endblock) =
4008: &Apache::loncommon::blockcheck(\%setters,'port');
4009: if ($startblock && $endblock) {
4010: return 'B';
4011: } else {
4012: return 'F';
4013: }
1.545 banghart 4014: }
4015:
1.762 raeburn 4016: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 4017: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
4018: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
4019: if (exists($env{'request.course.id'})) {
4020: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4021: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4022: if (($domain eq $cdom) && ($name eq $cnum)) {
4023: my $courseprivid=$env{'request.course.id'};
4024: $courseprivid=~s/\_/\//;
4025: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
4026: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
4027: return $1;
1.762 raeburn 4028: } else {
4029: if ($env{'request.course.sec'}) {
4030: $courseprivid.='/'.$env{'request.course.sec'};
4031: }
4032: if ($env{'user.priv.'.$env{'request.role'}.'./'.
4033: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
4034: return $2;
4035: }
1.714 raeburn 4036: }
4037: }
4038: }
4039: }
4040:
1.159 www 4041: # Free bre to public access
4042:
4043: if ($priv eq 'bre') {
1.238 www 4044: my $copyright=&metadata($uri,'copyright');
1.620 albertel 4045: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 4046: return 'F';
4047: }
1.238 www 4048: if ($copyright eq 'priv') {
4049: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4050: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 4051: return '';
4052: }
4053: }
4054: if ($copyright eq 'domain') {
4055: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 4056: unless (($env{'user.domain'} eq $1) ||
4057: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 4058: return '';
4059: }
1.262 matthew 4060: }
1.620 albertel 4061: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 4062: # Library role, so allow browsing of resources in this domain.
4063: return 'F';
1.238 www 4064: }
1.341 www 4065: if ($copyright eq 'custom') {
4066: unless (&customaccess($priv,$uri)) { return ''; }
4067: }
1.14 www 4068: }
1.264 matthew 4069: # Domain coordinator is trying to create a course
1.620 albertel 4070: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 4071: # uri is the requested domain in this case.
4072: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 4073: # a role of dc for the domain in question.
1.620 albertel 4074: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 4075: }
1.29 www 4076:
1.52 www 4077: my $thisallowed='';
4078: my $statecond=0;
4079: my $courseprivid='';
4080:
4081: # Course
4082:
1.620 albertel 4083: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4084: $thisallowed.=$1;
4085: }
1.29 www 4086:
1.52 www 4087: # Domain
4088:
1.620 albertel 4089: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 4090: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4091: $thisallowed.=$1;
4092: }
1.52 www 4093:
4094: # Course: uri itself is a course
1.66 www 4095: my $courseuri=$uri;
4096: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 4097: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 4098:
1.620 albertel 4099: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 4100: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 4101: $thisallowed.=$1;
4102: }
1.29 www 4103:
1.665 albertel 4104: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 4105: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 4106: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 4107: $thisallowed='';
1.671 raeburn 4108: my ($match)=&is_on_map($uri);
4109: if ($match) {
4110: if ($env{'user.priv.'.$env{'request.role'}.'./'}
4111: =~/\Q$priv\E\&([^\:]*)/) {
4112: $thisallowed.=$1;
4113: }
4114: } else {
1.705 albertel 4115: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 4116: if ($refuri) {
4117: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 4118: $thisallowed='F';
1.671 raeburn 4119: } else {
4120: $refuri=&declutter($refuri);
4121: my ($match) = &is_on_map($refuri);
4122: if ($match) {
4123: $thisallowed='F';
4124: }
1.669 raeburn 4125: }
1.671 raeburn 4126: }
4127: }
1.314 www 4128: }
1.492 albertel 4129:
1.766 albertel 4130: if ($priv eq 'bre'
4131: && $thisallowed ne 'F'
4132: && $thisallowed ne '2'
4133: && &is_portfolio_url($uri)) {
4134: $thisallowed = &portfolio_access($uri);
4135: }
4136:
1.52 www 4137: # Full access at system, domain or course-wide level? Exit.
1.29 www 4138:
4139: if ($thisallowed=~/F/) {
4140: return 'F';
4141: }
4142:
1.52 www 4143: # If this is generating or modifying users, exit with special codes
1.29 www 4144:
1.643 www 4145: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
4146: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 4147: my ($audom,$auname)=split('/',$uri);
1.643 www 4148: # no author name given, so this just checks on the general right to make a co-author in this domain
4149: unless ($auname) { return $thisallowed; }
4150: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 4151: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
4152: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
4153: ($audom ne $env{'request.role.domain'}))) { return ''; }
4154: }
1.52 www 4155: return $thisallowed;
4156: }
4157: #
1.103 harris41 4158: # Gathered so far: system, domain and course wide privileges
1.52 www 4159: #
4160: # Course: See if uri or referer is an individual resource that is part of
4161: # the course
4162:
1.620 albertel 4163: if ($env{'request.course.id'}) {
1.232 www 4164:
1.620 albertel 4165: $courseprivid=$env{'request.course.id'};
4166: if ($env{'request.course.sec'}) {
4167: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 4168: }
4169: $courseprivid=~s/\_/\//;
4170: my $checkreferer=1;
1.232 www 4171: my ($match,$cond)=&is_on_map($uri);
4172: if ($match) {
4173: $statecond=$cond;
1.620 albertel 4174: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4175: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4176: $thisallowed.=$1;
4177: $checkreferer=0;
4178: }
1.29 www 4179: }
1.83 www 4180:
1.148 www 4181: if ($checkreferer) {
1.620 albertel 4182: my $refuri=$env{'httpref.'.$orguri};
1.148 www 4183: unless ($refuri) {
1.800 albertel 4184: foreach my $key (keys(%env)) {
4185: if ($key=~/^httpref\..*\*/) {
4186: my $pattern=$key;
1.156 www 4187: $pattern=~s/^httpref\.\/res\///;
1.148 www 4188: $pattern=~s/\*/\[\^\/\]\+/g;
4189: $pattern=~s/\//\\\//g;
1.152 www 4190: if ($orguri=~/$pattern/) {
1.800 albertel 4191: $refuri=$env{$key};
1.148 www 4192: }
4193: }
1.191 harris41 4194: }
1.148 www 4195: }
1.232 www 4196:
1.148 www 4197: if ($refuri) {
1.152 www 4198: $refuri=&declutter($refuri);
1.232 www 4199: my ($match,$cond)=&is_on_map($refuri);
4200: if ($match) {
4201: my $refstatecond=$cond;
1.620 albertel 4202: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4203: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4204: $thisallowed.=$1;
1.53 www 4205: $uri=$refuri;
4206: $statecond=$refstatecond;
1.52 www 4207: }
4208: }
1.148 www 4209: }
1.29 www 4210: }
1.52 www 4211: }
1.29 www 4212:
1.52 www 4213: #
1.103 harris41 4214: # Gathered now: all privileges that could apply, and condition number
1.52 www 4215: #
4216: #
4217: # Full or no access?
4218: #
1.29 www 4219:
1.52 www 4220: if ($thisallowed=~/F/) {
4221: return 'F';
4222: }
1.29 www 4223:
1.52 www 4224: unless ($thisallowed) {
4225: return '';
4226: }
1.29 www 4227:
1.52 www 4228: # Restrictions exist, deal with them
4229: #
4230: # C:according to course preferences
4231: # R:according to resource settings
4232: # L:unless locked
4233: # X:according to user session state
4234: #
4235:
4236: # Possibly locked functionality, check all courses
1.54 www 4237: # Locks might take effect only after 10 minutes cache expiration for other
4238: # courses, and 2 minutes for current course
1.52 www 4239:
4240: my $envkey;
4241: if ($thisallowed=~/L/) {
1.620 albertel 4242: foreach $envkey (keys %env) {
1.54 www 4243: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
4244: my $courseid=$2;
4245: my $roleid=$1.'.'.$2;
1.92 www 4246: $courseid=~s/^\///;
1.54 www 4247: my $expiretime=600;
1.620 albertel 4248: if ($env{'request.role'} eq $roleid) {
1.54 www 4249: $expiretime=120;
4250: }
4251: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
4252: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 4253: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 4254: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 4255: }
1.620 albertel 4256: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
4257: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
4258: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
4259: &log($env{'user.domain'},$env{'user.name'},
4260: $env{'user.home'},
1.57 www 4261: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 4262: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4263: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4264: return '';
4265: }
4266: }
1.620 albertel 4267: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
4268: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
4269: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
4270: &log($env{'user.domain'},$env{'user.name'},
4271: $env{'user.home'},
1.57 www 4272: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 4273: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4274: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4275: return '';
4276: }
4277: }
4278: }
1.29 www 4279: }
1.52 www 4280: }
4281:
4282: #
4283: # Rest of the restrictions depend on selected course
4284: #
4285:
1.620 albertel 4286: unless ($env{'request.course.id'}) {
1.766 albertel 4287: if ($thisallowed eq 'A') {
4288: return 'A';
1.814 raeburn 4289: } elsif ($thisallowed eq 'B') {
4290: return 'B';
1.766 albertel 4291: } else {
4292: return '1';
4293: }
1.52 www 4294: }
1.29 www 4295:
1.52 www 4296: #
4297: # Now user is definitely in a course
4298: #
1.53 www 4299:
4300:
4301: # Course preferences
4302:
4303: if ($thisallowed=~/C/) {
1.620 albertel 4304: my $rolecode=(split(/\./,$env{'request.role'}))[0];
4305: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
4306: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 4307: =~/\Q$rolecode\E/) {
1.689 albertel 4308: if ($priv ne 'pch') {
4309: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4310: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
4311: $env{'request.course.id'});
4312: }
1.237 www 4313: return '';
4314: }
4315:
1.620 albertel 4316: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 4317: =~/\Q$unamedom\E/) {
1.689 albertel 4318: if ($priv ne 'pch') {
4319: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
4320: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
4321: $env{'request.course.id'});
4322: }
1.54 www 4323: return '';
4324: }
1.53 www 4325: }
4326:
4327: # Resource preferences
4328:
4329: if ($thisallowed=~/R/) {
1.620 albertel 4330: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 4331: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 4332: if ($priv ne 'pch') {
4333: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4334: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
4335: }
4336: return '';
1.54 www 4337: }
1.53 www 4338: }
1.30 www 4339:
1.246 www 4340: # Restricted by state or randomout?
1.30 www 4341:
1.52 www 4342: if ($thisallowed=~/X/) {
1.620 albertel 4343: if ($env{'acc.randomout'}) {
1.579 albertel 4344: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 4345: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 4346: return '';
4347: }
1.247 www 4348: }
4349: if (&condval($statecond)) {
1.52 www 4350: return '2';
4351: } else {
4352: return '';
4353: }
4354: }
1.30 www 4355:
1.766 albertel 4356: if ($thisallowed eq 'A') {
4357: return 'A';
1.814 raeburn 4358: } elsif ($thisallowed eq 'B') {
4359: return 'B';
1.766 albertel 4360: }
1.52 www 4361: return 'F';
1.232 www 4362: }
4363:
1.710 albertel 4364: sub split_uri_for_cond {
4365: my $uri=&deversion(&declutter(shift));
4366: my @uriparts=split(/\//,$uri);
4367: my $filename=pop(@uriparts);
4368: my $pathname=join('/',@uriparts);
4369: return ($pathname,$filename);
4370: }
1.232 www 4371: # --------------------------------------------------- Is a resource on the map?
4372:
4373: sub is_on_map {
1.710 albertel 4374: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 4375: #Trying to find the conditional for the file
1.620 albertel 4376: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 4377: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 4378: if ($match) {
1.289 bowersj2 4379: return (1,$1);
4380: } else {
1.434 www 4381: return (0,0);
1.289 bowersj2 4382: }
1.12 www 4383: }
4384:
1.427 www 4385: # --------------------------------------------------------- Get symb from alias
4386:
4387: sub get_symb_from_alias {
4388: my $symb=shift;
4389: my ($map,$resid,$url)=&decode_symb($symb);
4390: # Already is a symb
4391: if ($url) { return $symb; }
4392: # Must be an alias
4393: my $aliassymb='';
4394: my %bighash;
1.620 albertel 4395: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 4396: &GDBM_READER(),0640)) {
4397: my $rid=$bighash{'mapalias_'.$symb};
4398: if ($rid) {
4399: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 4400: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
4401: $resid,$bighash{'src_'.$rid});
1.427 www 4402: }
4403: untie %bighash;
4404: }
4405: return $aliassymb;
4406: }
4407:
1.12 www 4408: # ----------------------------------------------------------------- Define Role
4409:
4410: sub definerole {
4411: if (allowed('mcr','/')) {
4412: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 4413: foreach my $role (split(':',$sysrole)) {
4414: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4415: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
4416: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
4417: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4418: return "refused:s:$crole&$cqual";
4419: }
4420: }
1.191 harris41 4421: }
1.800 albertel 4422: foreach my $role (split(':',$domrole)) {
4423: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4424: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
4425: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
4426: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 4427: return "refused:d:$crole&$cqual";
4428: }
4429: }
1.191 harris41 4430: }
1.800 albertel 4431: foreach my $role (split(':',$courole)) {
4432: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4433: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
4434: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
4435: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4436: return "refused:c:$crole&$cqual";
4437: }
4438: }
1.191 harris41 4439: }
1.620 albertel 4440: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
4441: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 4442: "rolesdef_$rolename=".
4443: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 4444: return reply($command,$env{'user.home'});
1.12 www 4445: } else {
4446: return 'refused';
4447: }
1.105 harris41 4448: }
4449:
4450: # ---------------- Make a metadata query against the network of library servers
4451:
4452: sub metadata_query {
1.244 matthew 4453: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 4454: my %rhash;
1.845 albertel 4455: my %libserv = &all_library();
1.244 matthew 4456: my @server_list = (defined($server_array) ? @$server_array
4457: : keys(%libserv) );
4458: for my $server (@server_list) {
1.118 harris41 4459: unless ($custom or $customshow) {
4460: my $reply=&reply("querysend:".&escape($query),$server);
4461: $rhash{$server}=$reply;
4462: }
4463: else {
4464: my $reply=&reply("querysend:".&escape($query).':'.
4465: &escape($custom).':'.&escape($customshow),
4466: $server);
4467: $rhash{$server}=$reply;
4468: }
1.112 harris41 4469: }
1.118 harris41 4470: return \%rhash;
1.240 www 4471: }
4472:
4473: # ----------------------------------------- Send log queries and wait for reply
4474:
4475: sub log_query {
4476: my ($uname,$udom,$query,%filters)=@_;
4477: my $uhome=&homeserver($uname,$udom);
4478: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 4479: my $uhost=&hostname($uhome);
1.800 albertel 4480: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 4481: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
4482: $uhome);
1.479 albertel 4483: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 4484: return get_query_reply($queryid);
4485: }
4486:
1.818 raeburn 4487: # -------------------------- Update MySQL table for portfolio file
4488:
4489: sub update_portfolio_table {
1.821 raeburn 4490: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.818 raeburn 4491: my $homeserver = &homeserver($uname,$udom);
4492: my $queryid=
1.821 raeburn 4493: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
4494: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 4495: my $reply = &get_query_reply($queryid);
4496: return $reply;
4497: }
4498:
1.899 raeburn 4499: # -------------------------- Update MySQL allusers table
4500:
4501: sub update_allusers_table {
4502: my ($uname,$udom,$names) = @_;
4503: my $homeserver = &homeserver($uname,$udom);
4504: my $queryid=
4505: &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
4506: 'lastname='.&escape($names->{'lastname'}).'%%'.
4507: 'firstname='.&escape($names->{'firstname'}).'%%'.
4508: 'middlename='.&escape($names->{'middlename'}).'%%'.
4509: 'generation='.&escape($names->{'generation'}).'%%'.
4510: 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
4511: 'id='.&escape($names->{'id'}),$homeserver);
4512: my $reply = &get_query_reply($queryid);
4513: return $reply;
4514: }
4515:
1.508 raeburn 4516: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 4517:
4518: sub fetch_enrollment_query {
1.511 raeburn 4519: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 4520: my $homeserver;
1.547 raeburn 4521: my $maxtries = 1;
1.508 raeburn 4522: if ($context eq 'automated') {
4523: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 4524: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 4525: } else {
4526: $homeserver = &homeserver($cnum,$dom);
4527: }
1.838 albertel 4528: my $host=&hostname($homeserver);
1.506 raeburn 4529: my $cmd = '';
1.800 albertel 4530: foreach my $affiliate (keys %{$affiliatesref}) {
4531: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 4532: }
4533: $cmd =~ s/%%$//;
4534: $cmd = &escape($cmd);
4535: my $query = 'fetchenrollment';
1.620 albertel 4536: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 4537: unless ($queryid=~/^\Q$host\E\_/) {
4538: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
4539: return 'error: '.$queryid;
4540: }
1.506 raeburn 4541: my $reply = &get_query_reply($queryid);
1.547 raeburn 4542: my $tries = 1;
4543: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4544: $reply = &get_query_reply($queryid);
4545: $tries ++;
4546: }
1.526 raeburn 4547: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 4548: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 4549: } else {
1.901 albertel 4550: my @responses = split(/:/,$reply);
1.515 raeburn 4551: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 4552: foreach my $line (@responses) {
4553: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 4554: $$replyref{$key} = $value;
4555: }
4556: } else {
1.506 raeburn 4557: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 4558: foreach my $line (@responses) {
4559: my ($key,$value) = split(/=/,$line);
1.506 raeburn 4560: $$replyref{$key} = $value;
4561: if ($value > 0) {
1.800 albertel 4562: foreach my $item (@{$$affiliatesref{$key}}) {
4563: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 4564: my $destname = $pathname.'/'.$filename;
4565: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 4566: if ($xml_classlist =~ /^error/) {
4567: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
4568: } else {
1.506 raeburn 4569: if ( open(FILE,">$destname") ) {
4570: print FILE &unescape($xml_classlist);
4571: close(FILE);
1.526 raeburn 4572: } else {
4573: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 4574: }
4575: }
4576: }
4577: }
4578: }
4579: }
4580: return 'ok';
4581: }
4582: return 'error';
4583: }
4584:
1.242 www 4585: sub get_query_reply {
4586: my $queryid=shift;
1.240 www 4587: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
4588: my $reply='';
4589: for (1..100) {
4590: sleep 2;
4591: if (-e $replyfile.'.end') {
1.448 albertel 4592: if (open(my $fh,$replyfile)) {
1.904 albertel 4593: $reply = join('',<$fh>);
4594: close($fh);
1.240 www 4595: } else { return 'error: reply_file_error'; }
1.242 www 4596: return &unescape($reply);
4597: }
1.240 www 4598: }
1.242 www 4599: return 'timeout:'.$queryid;
1.240 www 4600: }
4601:
4602: sub courselog_query {
1.241 www 4603: #
4604: # possible filters:
4605: # url: url or symb
4606: # username
4607: # domain
4608: # action: view, submit, grade
4609: # start: timestamp
4610: # end: timestamp
4611: #
1.240 www 4612: my (%filters)=@_;
1.620 albertel 4613: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 4614: if ($filters{'url'}) {
4615: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
4616: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
4617: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
4618: }
1.620 albertel 4619: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
4620: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 4621: return &log_query($cname,$cdom,'courselog',%filters);
4622: }
4623:
4624: sub userlog_query {
1.858 raeburn 4625: #
4626: # possible filters:
4627: # action: log check role
4628: # start: timestamp
4629: # end: timestamp
4630: #
1.240 www 4631: my ($uname,$udom,%filters)=@_;
4632: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 4633: }
4634:
1.506 raeburn 4635: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
4636:
4637: sub auto_run {
1.508 raeburn 4638: my ($cnum,$cdom) = @_;
1.876 raeburn 4639: my $response = 0;
4640: my $settings;
4641: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
4642: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
4643: $settings = $domconfig{'autoenroll'};
4644: if ($settings->{'run'} eq '1') {
4645: $response = 1;
4646: }
4647: } else {
4648: my $homeserver = &homeserver($cnum,$cdom);
4649: $response = &reply('autorun:'.$cdom,$homeserver);
4650: }
1.506 raeburn 4651: return $response;
4652: }
1.776 albertel 4653:
1.506 raeburn 4654: sub auto_get_sections {
1.508 raeburn 4655: my ($cnum,$cdom,$inst_coursecode) = @_;
4656: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 4657: my @secs = ();
1.511 raeburn 4658: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 4659: unless ($response eq 'refused') {
1.901 albertel 4660: @secs = split(/:/,$response);
1.506 raeburn 4661: }
4662: return @secs;
4663: }
1.776 albertel 4664:
1.506 raeburn 4665: sub auto_new_course {
1.508 raeburn 4666: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
4667: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 4668: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 4669: return $response;
4670: }
1.776 albertel 4671:
1.506 raeburn 4672: sub auto_validate_courseID {
1.508 raeburn 4673: my ($cnum,$cdom,$inst_course_id) = @_;
4674: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 4675: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 4676: return $response;
4677: }
1.776 albertel 4678:
1.506 raeburn 4679: sub auto_create_password {
1.873 raeburn 4680: my ($cnum,$cdom,$authparam,$udom) = @_;
4681: my ($homeserver,$response);
1.506 raeburn 4682: my $create_passwd = 0;
4683: my $authchk = '';
1.873 raeburn 4684: if ($udom =~ /^$match_domain$/) {
4685: $homeserver = &domain($udom,'primary');
4686: }
4687: if ($homeserver eq '') {
4688: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
4689: $homeserver = &homeserver($cnum,$cdom);
4690: }
4691: }
4692: if ($homeserver eq '') {
4693: $authchk = 'nodomain';
1.506 raeburn 4694: } else {
1.873 raeburn 4695: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
4696: if ($response eq 'refused') {
4697: $authchk = 'refused';
4698: } else {
1.901 albertel 4699: ($authparam,$create_passwd,$authchk) = split(/:/,$response);
1.873 raeburn 4700: }
1.506 raeburn 4701: }
4702: return ($authparam,$create_passwd,$authchk);
4703: }
4704:
1.706 raeburn 4705: sub auto_photo_permission {
4706: my ($cnum,$cdom,$students) = @_;
4707: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 4708: my ($outcome,$perm_reqd,$conditions) =
4709: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 4710: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4711: return (undef,undef);
4712: }
1.706 raeburn 4713: return ($outcome,$perm_reqd,$conditions);
4714: }
4715:
4716: sub auto_checkphotos {
4717: my ($uname,$udom,$pid) = @_;
4718: my $homeserver = &homeserver($uname,$udom);
4719: my ($result,$resulttype);
4720: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 4721: &escape($uname).':'.&escape($pid),
4722: $homeserver));
1.709 albertel 4723: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4724: return (undef,undef);
4725: }
1.706 raeburn 4726: if ($outcome) {
4727: ($result,$resulttype) = split(/:/,$outcome);
4728: }
4729: return ($result,$resulttype);
4730: }
4731:
4732: sub auto_photochoice {
4733: my ($cnum,$cdom) = @_;
4734: my $homeserver = &homeserver($cnum,$cdom);
4735: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 4736: &escape($cdom),
4737: $homeserver)));
1.709 albertel 4738: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4739: return (undef,undef);
4740: }
1.706 raeburn 4741: return ($update,$comment);
4742: }
4743:
4744: sub auto_photoupdate {
4745: my ($affiliatesref,$dom,$cnum,$photo) = @_;
4746: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 4747: my $host=&hostname($homeserver);
1.706 raeburn 4748: my $cmd = '';
4749: my $maxtries = 1;
1.800 albertel 4750: foreach my $affiliate (keys(%{$affiliatesref})) {
4751: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 4752: }
4753: $cmd =~ s/%%$//;
4754: $cmd = &escape($cmd);
4755: my $query = 'institutionalphotos';
4756: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
4757: unless ($queryid=~/^\Q$host\E\_/) {
4758: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
4759: return 'error: '.$queryid;
4760: }
4761: my $reply = &get_query_reply($queryid);
4762: my $tries = 1;
4763: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4764: $reply = &get_query_reply($queryid);
4765: $tries ++;
4766: }
4767: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
4768: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
4769: } else {
4770: my @responses = split(/:/,$reply);
4771: my $outcome = shift(@responses);
4772: foreach my $item (@responses) {
4773: my ($key,$value) = split(/=/,$item);
4774: $$photo{$key} = $value;
4775: }
4776: return $outcome;
4777: }
4778: return 'error';
4779: }
4780:
1.521 raeburn 4781: sub auto_instcode_format {
1.793 albertel 4782: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
4783: $cat_order) = @_;
1.521 raeburn 4784: my $courses = '';
1.772 raeburn 4785: my @homeservers;
1.521 raeburn 4786: if ($caller eq 'global') {
1.841 albertel 4787: my %servers = &get_servers($codedom,'library');
4788: foreach my $tryserver (keys(%servers)) {
4789: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
4790: push(@homeservers,$tryserver);
4791: }
1.584 raeburn 4792: }
1.521 raeburn 4793: } else {
1.772 raeburn 4794: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 4795: }
1.793 albertel 4796: foreach my $code (keys(%{$instcodes})) {
4797: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 4798: }
4799: chop($courses);
1.772 raeburn 4800: my $ok_response = 0;
4801: my $response;
4802: while (@homeservers > 0 && $ok_response == 0) {
4803: my $server = shift(@homeservers);
4804: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
4805: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
4806: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.901 albertel 4807: split(/:/,$response);
1.772 raeburn 4808: %{$codes} = (%{$codes},&str2hash($codes_str));
4809: push(@{$codetitles},&str2array($codetitles_str));
4810: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
4811: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
4812: $ok_response = 1;
4813: }
4814: }
4815: if ($ok_response) {
1.521 raeburn 4816: return 'ok';
1.772 raeburn 4817: } else {
4818: return $response;
1.521 raeburn 4819: }
4820: }
4821:
1.792 raeburn 4822: sub auto_instcode_defaults {
4823: my ($domain,$returnhash,$code_order) = @_;
4824: my @homeservers;
1.841 albertel 4825:
4826: my %servers = &get_servers($domain,'library');
4827: foreach my $tryserver (keys(%servers)) {
4828: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
4829: push(@homeservers,$tryserver);
4830: }
1.792 raeburn 4831: }
1.841 albertel 4832:
1.792 raeburn 4833: my $response;
1.841 albertel 4834: foreach my $server (@homeservers) {
1.792 raeburn 4835: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 4836: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
4837:
4838: foreach my $pair (split(/\&/,$response)) {
4839: my ($name,$value)=split(/\=/,$pair);
4840: if ($name eq 'code_order') {
4841: @{$code_order} = split(/\&/,&unescape($value));
4842: } else {
4843: $returnhash->{&unescape($name)}=&unescape($value);
4844: }
4845: }
4846: return 'ok';
1.792 raeburn 4847: }
1.841 albertel 4848:
4849: return $response;
1.792 raeburn 4850: }
4851:
1.777 albertel 4852: sub auto_validate_class_sec {
1.773 raeburn 4853: my ($cdom,$cnum,$owner,$inst_class) = @_;
4854: my $homeserver = &homeserver($cnum,$cdom);
4855: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.774 banghart 4856: &escape($owner).':'.$cdom,$homeserver);
1.773 raeburn 4857: return $response;
4858: }
4859:
1.679 raeburn 4860: # ------------------------------------------------------- Course Group routines
4861:
4862: sub get_coursegroups {
1.809 raeburn 4863: my ($cdom,$cnum,$group,$namespace) = @_;
4864: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 4865: }
4866:
1.679 raeburn 4867: sub modify_coursegroup {
4868: my ($cdom,$cnum,$groupsettings) = @_;
4869: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
4870: }
4871:
1.809 raeburn 4872: sub toggle_coursegroup_status {
4873: my ($cdom,$cnum,$group,$action) = @_;
4874: my ($from_namespace,$to_namespace);
4875: if ($action eq 'delete') {
4876: $from_namespace = 'coursegroups';
4877: $to_namespace = 'deleted_groups';
4878: } else {
4879: $from_namespace = 'deleted_groups';
4880: $to_namespace = 'coursegroups';
4881: }
4882: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 4883: if (my $tmp = &error(%curr_group)) {
4884: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
4885: return ('read error',$tmp);
4886: } else {
4887: my %savedsettings = %curr_group;
1.809 raeburn 4888: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 4889: my $deloutcome;
4890: if ($result eq 'ok') {
1.809 raeburn 4891: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 4892: } else {
4893: return ('write error',$result);
4894: }
4895: if ($deloutcome eq 'ok') {
4896: return 'ok';
4897: } else {
4898: return ('delete error',$deloutcome);
4899: }
4900: }
4901: }
4902:
1.679 raeburn 4903: sub modify_group_roles {
4904: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs) = @_;
4905: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
4906: my $role = 'gr/'.&escape($userprivs);
4907: my ($uname,$udom) = split(/:/,$user);
4908: my $result = &assignrole($udom,$uname,$url,$role,$end,$start);
1.684 raeburn 4909: if ($result eq 'ok') {
4910: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
4911: }
1.679 raeburn 4912: return $result;
4913: }
4914:
4915: sub modify_coursegroup_membership {
4916: my ($cdom,$cnum,$membership) = @_;
4917: my $result = &put('groupmembership',$membership,$cdom,$cnum);
4918: return $result;
4919: }
4920:
1.682 raeburn 4921: sub get_active_groups {
4922: my ($udom,$uname,$cdom,$cnum) = @_;
4923: my $now = time;
4924: my %groups = ();
4925: foreach my $key (keys(%env)) {
1.811 albertel 4926: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 4927: my ($start,$end) = split(/\./,$env{$key});
4928: if (($end!=0) && ($end<$now)) { next; }
4929: if (($start!=0) && ($start>$now)) { next; }
4930: if ($1 eq $cdom && $2 eq $cnum) {
4931: $groups{$3} = $env{$key} ;
4932: }
4933: }
4934: }
4935: return %groups;
4936: }
4937:
1.683 raeburn 4938: sub get_group_membership {
4939: my ($cdom,$cnum,$group) = @_;
4940: return(&dump('groupmembership',$cdom,$cnum,$group));
4941: }
4942:
4943: sub get_users_groups {
4944: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 4945: my @usersgroups;
1.683 raeburn 4946: my $cachetime=1800;
4947:
4948: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 4949: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
4950: if (defined($cached)) {
1.734 albertel 4951: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 4952: } else {
4953: $grouplist = '';
1.816 raeburn 4954: my $courseurl = &courseid_to_courseurl($courseid);
4955: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 4956: my $access_end = $env{'course.'.$courseid.
4957: '.default_enrollment_end_date'};
4958: my $now = time;
4959: foreach my $key (keys(%roleshash)) {
4960: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
4961: my $group = $1;
4962: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
4963: my $start = $2;
4964: my $end = $1;
4965: if ($start == -1) { next; } # deleted from group
4966: if (($start!=0) && ($start>$now)) { next; }
4967: if (($end!=0) && ($end<$now)) {
4968: if ($access_end && $access_end < $now) {
4969: if ($access_end - $end < 86400) {
4970: push(@usersgroups,$group);
1.733 raeburn 4971: }
4972: }
1.817 raeburn 4973: next;
1.733 raeburn 4974: }
1.817 raeburn 4975: push(@usersgroups,$group);
1.683 raeburn 4976: }
4977: }
4978: }
1.817 raeburn 4979: @usersgroups = &sort_course_groups($courseid,@usersgroups);
4980: $grouplist = join(':',@usersgroups);
4981: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 4982: }
1.733 raeburn 4983: return @usersgroups;
1.683 raeburn 4984: }
4985:
4986: sub devalidate_getgroups_cache {
4987: my ($udom,$uname,$cdom,$cnum)=@_;
4988: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 4989:
1.683 raeburn 4990: my $hashid="$udom:$uname:$courseid";
4991: &devalidate_cache_new('getgroups',$hashid);
4992: }
4993:
1.12 www 4994: # ------------------------------------------------------------------ Plain Text
4995:
4996: sub plaintext {
1.742 raeburn 4997: my ($short,$type,$cid) = @_;
1.758 albertel 4998: if ($short =~ /^cr/) {
4999: return (split('/',$short))[-1];
5000: }
1.742 raeburn 5001: if (!defined($cid)) {
5002: $cid = $env{'request.course.id'};
5003: }
5004: if (defined($cid) && defined($env{'course.'.$cid.'.'.$short.'.plaintext'})) {
5005: return &Apache::lonlocal::mt($env{'course.'.$cid.'.'.$short.
5006: '.plaintext'});
5007: }
5008: my %rolenames = (
5009: Course => 'std',
5010: Group => 'alt1',
5011: );
5012: if (defined($type) &&
5013: defined($rolenames{$type}) &&
5014: defined($prp{$short}{$rolenames{$type}})) {
5015: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
5016: } else {
5017: return &Apache::lonlocal::mt($prp{$short}{'std'});
5018: }
1.12 www 5019: }
5020:
5021: # ----------------------------------------------------------------- Assign Role
5022:
5023: sub assignrole {
1.357 www 5024: my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
1.21 www 5025: my $mrole;
5026: if ($role =~ /^cr\//) {
1.393 www 5027: my $cwosec=$url;
1.811 albertel 5028: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 5029: unless (&allowed('ccr',$cwosec)) {
1.104 www 5030: &logthis('Refused custom assignrole: '.
5031: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 5032: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 5033: return 'refused';
5034: }
1.21 www 5035: $mrole='cr';
1.678 raeburn 5036: } elsif ($role =~ /^gr\//) {
5037: my $cwogrp=$url;
1.811 albertel 5038: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 5039: unless (&allowed('mdg',$cwogrp)) {
5040: &logthis('Refused group assignrole: '.
5041: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
5042: $env{'user.name'}.' at '.$env{'user.domain'});
5043: return 'refused';
5044: }
5045: $mrole='gr';
1.21 www 5046: } else {
1.82 www 5047: my $cwosec=$url;
1.811 albertel 5048: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.373 www 5049: unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) {
1.104 www 5050: &logthis('Refused assignrole: '.
5051: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 5052: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 5053: return 'refused';
5054: }
1.21 www 5055: $mrole=$role;
5056: }
1.620 albertel 5057: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 5058: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 5059: if ($end) { $command.='_'.$end; }
1.21 www 5060: if ($start) {
5061: if ($end) {
1.81 www 5062: $command.='_'.$start;
1.21 www 5063: } else {
1.81 www 5064: $command.='_0_'.$start;
1.21 www 5065: }
5066: }
1.739 raeburn 5067: my $origstart = $start;
5068: my $origend = $end;
1.357 www 5069: # actually delete
5070: if ($deleteflag) {
1.373 www 5071: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 5072: # modify command to delete the role
1.620 albertel 5073: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 5074: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 5075: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 5076: # set start and finish to negative values for userrolelog
5077: $start=-1;
5078: $end=-1;
5079: }
5080: }
5081: # send command
1.349 www 5082: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 5083: # log new user role if status is ok
1.349 www 5084: if ($answer eq 'ok') {
1.663 raeburn 5085: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 5086: # for course roles, perform group memberships changes triggered by role change.
5087: unless ($role =~ /^gr/) {
5088: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
5089: $origstart);
5090: }
1.349 www 5091: }
5092: return $answer;
1.169 harris41 5093: }
5094:
5095: # -------------------------------------------------- Modify user authentication
1.197 www 5096: # Overrides without validation
5097:
1.169 harris41 5098: sub modifyuserauth {
5099: my ($udom,$uname,$umode,$upass)=@_;
5100: my $uhome=&homeserver($uname,$udom);
1.197 www 5101: unless (&allowed('mau',$udom)) { return 'refused'; }
5102: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 5103: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
5104: ' in domain '.$env{'request.role.domain'});
1.169 harris41 5105: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
5106: &escape($upass),$uhome);
1.620 albertel 5107: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 5108: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
5109: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
5110: &log($udom,,$uname,$uhome,
1.620 albertel 5111: 'Authentication changed by '.$env{'user.domain'}.', '.
5112: $env{'user.name'}.', '.$umode.
1.197 www 5113: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 5114: unless ($reply eq 'ok') {
1.197 www 5115: &logthis('Authentication mode error: '.$reply);
1.169 harris41 5116: return 'error: '.$reply;
5117: }
1.170 harris41 5118: return 'ok';
1.80 www 5119: }
5120:
1.81 www 5121: # --------------------------------------------------------------- Modify a user
1.80 www 5122:
1.81 www 5123: sub modifyuser {
1.206 matthew 5124: my ($udom, $uname, $uid,
5125: $umode, $upass, $first,
5126: $middle, $last, $gene,
1.387 www 5127: $forceid, $desiredhome, $email)=@_;
1.807 albertel 5128: $udom= &LONCAPA::clean_domain($udom);
5129: $uname=&LONCAPA::clean_username($uname);
1.81 www 5130: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 5131: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 5132: $last.', '.$gene.'(forceid: '.$forceid.')'.
5133: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
5134: ' desiredhome not specified').
1.620 albertel 5135: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
5136: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 5137: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 5138: # ----------------------------------------------------------------- Create User
1.406 albertel 5139: if (($uhome eq 'no_host') &&
5140: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 5141: my $unhome='';
1.844 albertel 5142: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 5143: $unhome = $desiredhome;
1.620 albertel 5144: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
5145: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 5146: } else { # load balancing routine for determining $unhome
1.81 www 5147: my $loadm=10000000;
1.841 albertel 5148: my %servers = &get_servers($udom,'library');
5149: foreach my $tryserver (keys(%servers)) {
5150: my $answer=reply('load',$tryserver);
5151: if (($answer=~/\d+/) && ($answer<$loadm)) {
5152: $loadm=$answer;
5153: $unhome=$tryserver;
5154: }
1.80 www 5155: }
5156: }
5157: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 5158: return 'error: unable to find a home server for '.$uname.
5159: ' in domain '.$udom;
1.80 www 5160: }
5161: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
5162: &escape($upass),$unhome);
5163: unless ($reply eq 'ok') {
5164: return 'error: '.$reply;
5165: }
1.230 stredwic 5166: $uhome=&homeserver($uname,$udom,'true');
1.80 www 5167: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 5168: return 'error: unable verify users home machine.';
1.80 www 5169: }
1.209 matthew 5170: } # End of creation of new user
1.80 www 5171: # ---------------------------------------------------------------------- Add ID
5172: if ($uid) {
5173: $uid=~tr/A-Z/a-z/;
5174: my %uidhash=&idrget($udom,$uname);
1.196 www 5175: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
5176: && (!$forceid)) {
1.80 www 5177: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 5178: return 'error: user id "'.$uid.'" does not match '.
5179: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 5180: }
5181: } else {
5182: &idput($udom,($uname => $uid));
5183: }
5184: }
5185: # -------------------------------------------------------------- Add names, etc
1.313 matthew 5186: my @tmp=&get('environment',
1.899 raeburn 5187: ['firstname','middlename','lastname','generation','id',
5188: 'permanentemail'],
1.134 albertel 5189: $udom,$uname);
1.313 matthew 5190: my %names;
5191: if ($tmp[0] =~ m/^error:.*/) {
5192: %names=();
5193: } else {
5194: %names = @tmp;
5195: }
1.388 www 5196: #
5197: # Make sure to not trash student environment if instructor does not bother
5198: # to supply name and email information
5199: #
5200: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 5201: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 5202: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 5203: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 5204: if ($email) {
5205: $email=~s/[^\w\@\.\-\,]//gs;
5206: if ($email=~/\@/) { $names{'notification'} = $email;
5207: $names{'critnotification'} = $email;
5208: $names{'permanentemail'} = $email; }
5209: }
1.899 raeburn 5210: if ($uid) { $names{'id'} = $uid; }
1.134 albertel 5211: my $reply = &put('environment', \%names, $udom,$uname);
5212: if ($reply ne 'ok') { return 'error: '.$reply; }
1.899 raeburn 5213: my $sqlresult = &update_allusers_table($uname,$udom,\%names);
1.680 www 5214: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.81 www 5215: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 5216: $umode.', '.$first.', '.$middle.', '.
5217: $last.', '.$gene.' by '.
1.620 albertel 5218: $env{'user.name'}.' at '.$env{'user.domain'});
1.134 albertel 5219: return 'ok';
1.80 www 5220: }
5221:
1.81 www 5222: # -------------------------------------------------------------- Modify student
1.80 www 5223:
1.81 www 5224: sub modifystudent {
5225: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.515 raeburn 5226: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid)=@_;
1.455 albertel 5227: if (!$cid) {
1.620 albertel 5228: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5229: return 'not_in_class';
5230: }
1.80 www 5231: }
5232: # --------------------------------------------------------------- Make the user
1.81 www 5233: my $reply=&modifyuser
1.209 matthew 5234: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 5235: $desiredhome,$email);
1.80 www 5236: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 5237: # This will cause &modify_student_enrollment to get the uid from the
5238: # students environment
5239: $uid = undef if (!$forceid);
1.455 albertel 5240: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.515 raeburn 5241: $gene,$usec,$end,$start,$type,$locktype,$cid);
1.297 matthew 5242: return $reply;
5243: }
5244:
5245: sub modify_student_enrollment {
1.515 raeburn 5246: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid) = @_;
1.455 albertel 5247: my ($cdom,$cnum,$chome);
5248: if (!$cid) {
1.620 albertel 5249: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5250: return 'not_in_class';
5251: }
1.620 albertel 5252: $cdom=$env{'course.'.$cid.'.domain'};
5253: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 5254: } else {
5255: ($cdom,$cnum)=split(/_/,$cid);
5256: }
1.620 albertel 5257: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 5258: if (!$chome) {
1.457 raeburn 5259: $chome=&homeserver($cnum,$cdom);
1.297 matthew 5260: }
1.455 albertel 5261: if (!$chome) { return 'unknown_course'; }
1.297 matthew 5262: # Make sure the user exists
1.81 www 5263: my $uhome=&homeserver($uname,$udom);
5264: if (($uhome eq '') || ($uhome eq 'no_host')) {
5265: return 'error: no such user';
5266: }
1.297 matthew 5267: # Get student data if we were not given enough information
5268: if (!defined($first) || $first eq '' ||
5269: !defined($last) || $last eq '' ||
5270: !defined($uid) || $uid eq '' ||
5271: !defined($middle) || $middle eq '' ||
5272: !defined($gene) || $gene eq '') {
1.294 matthew 5273: # They did not supply us with enough data to enroll the student, so
5274: # we need to pick up more information.
1.297 matthew 5275: my %tmp = &get('environment',
1.294 matthew 5276: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 5277: ,$udom,$uname);
5278:
1.800 albertel 5279: #foreach my $key (keys(%tmp)) {
5280: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 5281: #}
1.294 matthew 5282: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
5283: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
5284: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 5285: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 5286: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
5287: }
1.556 albertel 5288: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 5289: my $reply=cput('classlist',
5290: {"$uname:$udom" =>
1.515 raeburn 5291: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 5292: $cdom,$cnum);
1.81 www 5293: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
5294: return 'error: '.$reply;
1.652 albertel 5295: } else {
5296: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 5297: }
1.297 matthew 5298: # Add student role to user
1.83 www 5299: my $uurl='/'.$cid;
1.81 www 5300: $uurl=~s/\_/\//g;
5301: if ($usec) {
5302: $uurl.='/'.$usec;
5303: }
5304: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 5305: }
5306:
1.556 albertel 5307: sub format_name {
5308: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
5309: my $name;
5310: if ($first ne 'lastname') {
5311: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
5312: } else {
5313: if ($lastname=~/\S/) {
5314: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
5315: $name=~s/\s+,/,/;
5316: } else {
5317: $name.= $firstname.' '.$middlename.' '.$generation;
5318: }
5319: }
5320: $name=~s/^\s+//;
5321: $name=~s/\s+$//;
5322: $name=~s/\s+/ /g;
5323: return $name;
5324: }
5325:
1.84 www 5326: # ------------------------------------------------- Write to course preferences
5327:
5328: sub writecoursepref {
5329: my ($courseid,%prefs)=@_;
5330: $courseid=~s/^\///;
5331: $courseid=~s/\_/\//g;
5332: my ($cdomain,$cnum)=split(/\//,$courseid);
5333: my $chome=homeserver($cnum,$cdomain);
5334: if (($chome eq '') || ($chome eq 'no_host')) {
5335: return 'error: no such course';
5336: }
5337: my $cstring='';
1.800 albertel 5338: foreach my $pref (keys(%prefs)) {
5339: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 5340: }
1.84 www 5341: $cstring=~s/\&$//;
5342: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
5343: }
5344:
5345: # ---------------------------------------------------------- Make/modify course
5346:
5347: sub createcourse {
1.741 raeburn 5348: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
5349: $course_owner,$crstype)=@_;
1.84 www 5350: $url=&declutter($url);
5351: my $cid='';
1.264 matthew 5352: unless (&allowed('ccc',$udom)) {
1.84 www 5353: return 'refused';
5354: }
5355: # ------------------------------------------------------------------- Create ID
1.674 www 5356: my $uname=int(1+rand(9)).
5357: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
5358: substr($$.time,0,5).unpack("H8",pack("I32",time)).
1.84 www 5359: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
5360: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 5361: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 5362: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5363: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
5364: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 5365: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5366: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5367: return 'error: unable to generate unique course-ID';
5368: }
5369: }
1.264 matthew 5370: # ------------------------------------------------ Check supplied server name
1.620 albertel 5371: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 5372: if (! &is_library($course_server)) {
1.264 matthew 5373: return 'error:bad server name '.$course_server;
5374: }
1.84 www 5375: # ------------------------------------------------------------- Make the course
5376: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 5377: $course_server);
1.84 www 5378: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 5379: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5380: if (($uhome eq '') || ($uhome eq 'no_host')) {
5381: return 'error: no such course';
5382: }
1.271 www 5383: # ----------------------------------------------------------------- Course made
1.516 raeburn 5384: # log existence
5385: &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
1.741 raeburn 5386: ':'.&escape($inst_code).':'.&escape($course_owner).':'.
5387: &escape($crstype),$uhome);
1.358 www 5388: &flushcourselogs();
5389: # set toplevel url
1.271 www 5390: my $topurl=$url;
5391: unless ($nonstandard) {
5392: # ------------------------------------------ For standard courses, make top url
5393: my $mapurl=&clutter($url);
1.278 www 5394: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 5395: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 5396: <map>
5397: <resource id="1" type="start"></resource>
5398: <resource id="2" src="$mapurl"></resource>
5399: <resource id="3" type="finish"></resource>
5400: <link index="1" from="1" to="2"></link>
5401: <link index="2" from="2" to="3"></link>
5402: </map>
5403: ENDINITMAP
5404: $topurl=&declutter(
1.638 albertel 5405: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 5406: );
5407: }
5408: # ----------------------------------------------------------- Write preferences
1.84 www 5409: &writecoursepref($udom.'_'.$uname,
5410: ('description' => $description,
1.271 www 5411: 'url' => $topurl));
1.84 www 5412: return '/'.$udom.'/'.$uname;
5413: }
5414:
1.813 albertel 5415: sub is_course {
5416: my ($cdom,$cnum) = @_;
5417: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
5418: undef,'.');
5419: if (exists($courses{$cdom.'_'.$cnum})) {
5420: return 1;
5421: }
5422: return 0;
5423: }
5424:
1.21 www 5425: # ---------------------------------------------------------- Assign Custom Role
5426:
5427: sub assigncustomrole {
1.357 www 5428: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
1.21 www 5429: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.357 www 5430: $end,$start,$deleteflag);
1.21 www 5431: }
5432:
5433: # ----------------------------------------------------------------- Revoke Role
5434:
5435: sub revokerole {
1.357 www 5436: my ($udom,$uname,$url,$role,$deleteflag)=@_;
1.21 www 5437: my $now=time;
1.357 www 5438: return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
1.21 www 5439: }
5440:
5441: # ---------------------------------------------------------- Revoke Custom Role
5442:
5443: sub revokecustomrole {
1.357 www 5444: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
1.21 www 5445: my $now=time;
1.357 www 5446: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
5447: $deleteflag);
1.17 www 5448: }
5449:
1.533 banghart 5450: # ------------------------------------------------------------ Disk usage
1.535 albertel 5451: sub diskusage {
1.533 banghart 5452: my ($udom,$uname,$directoryRoot)=@_;
5453: $directoryRoot =~ s/\/$//;
1.535 albertel 5454: my $listing=&reply('du:'.$directoryRoot,homeserver($uname,$udom));
1.514 albertel 5455: return $listing;
1.512 banghart 5456: }
5457:
1.566 banghart 5458: sub is_locked {
5459: my ($file_name, $domain, $user) = @_;
5460: my @check;
5461: my $is_locked;
5462: push @check, $file_name;
1.613 albertel 5463: my %locked = &get('file_permissions',\@check,
1.620 albertel 5464: $env{'user.domain'},$env{'user.name'});
1.615 albertel 5465: my ($tmp)=keys(%locked);
5466: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 5467:
1.566 banghart 5468: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 5469: $is_locked = 'false';
5470: foreach my $entry (@{$locked{$file_name}}) {
5471: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 5472: $is_locked = 'true';
5473: last;
1.745 raeburn 5474: }
5475: }
1.566 banghart 5476: } else {
5477: $is_locked = 'false';
5478: }
5479: }
5480:
1.759 albertel 5481: sub declutter_portfile {
5482: my ($file) = @_;
1.833 albertel 5483: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 5484: return $file;
5485: }
5486:
1.559 banghart 5487: # ------------------------------------------------------------- Mark as Read Only
5488:
5489: sub mark_as_readonly {
5490: my ($domain,$user,$files,$what) = @_;
1.613 albertel 5491: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 5492: my ($tmp)=keys(%current_permissions);
5493: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 5494: foreach my $file (@{$files}) {
1.759 albertel 5495: $file = &declutter_portfile($file);
1.561 banghart 5496: push(@{$current_permissions{$file}},$what);
1.559 banghart 5497: }
1.613 albertel 5498: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5499: return;
5500: }
5501:
1.572 banghart 5502: # ------------------------------------------------------------Save Selected Files
5503:
5504: sub save_selected_files {
5505: my ($user, $path, @files) = @_;
5506: my $filename = $user."savedfiles";
1.573 banghart 5507: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 5508: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 5509: foreach my $file (@files) {
1.620 albertel 5510: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 5511: }
5512: foreach my $file (@other_files) {
1.574 banghart 5513: print (OUT $file."\n");
1.572 banghart 5514: }
1.574 banghart 5515: close (OUT);
1.572 banghart 5516: return 'ok';
5517: }
5518:
1.574 banghart 5519: sub clear_selected_files {
5520: my ($user) = @_;
5521: my $filename = $user."savedfiles";
5522: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
5523: print (OUT undef);
5524: close (OUT);
5525: return ("ok");
5526: }
5527:
1.572 banghart 5528: sub files_in_path {
5529: my ($user, $path) = @_;
5530: my $filename = $user."savedfiles";
5531: my %return_files;
1.574 banghart 5532: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 5533: while (my $line_in = <IN>) {
1.574 banghart 5534: chomp ($line_in);
5535: my @paths_and_file = split (m!/!, $line_in);
5536: my $file_part = pop (@paths_and_file);
5537: my $path_part = join ('/', @paths_and_file);
1.573 banghart 5538: $path_part.='/';
5539: my $path_and_file = $path_part.$file_part;
5540: if ($path_part eq $path) {
5541: $return_files{$file_part}= 'selected';
5542: }
5543: }
1.574 banghart 5544: close (IN);
5545: return (\%return_files);
1.572 banghart 5546: }
5547:
5548: # called in portfolio select mode, to show files selected NOT in current directory
5549: sub files_not_in_path {
5550: my ($user, $path) = @_;
5551: my $filename = $user."savedfiles";
5552: my @return_files;
5553: my $path_part;
1.800 albertel 5554: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
5555: while (my $line = <IN>) {
1.572 banghart 5556: #ok, I know it's clunky, but I want it to work
1.800 albertel 5557: my @paths_and_file = split(m|/|, $line);
5558: my $file_part = pop(@paths_and_file);
5559: chomp($file_part);
5560: my $path_part = join('/', @paths_and_file);
1.572 banghart 5561: $path_part .= '/';
5562: my $path_and_file = $path_part.$file_part;
5563: if ($path_part ne $path) {
1.800 albertel 5564: push(@return_files, ($path_and_file));
1.572 banghart 5565: }
5566: }
1.800 albertel 5567: close(OUT);
1.574 banghart 5568: return (@return_files);
1.572 banghart 5569: }
5570:
1.745 raeburn 5571: #----------------------------------------------Get portfolio file permissions
1.629 banghart 5572:
1.745 raeburn 5573: sub get_portfile_permissions {
5574: my ($domain,$user) = @_;
1.613 albertel 5575: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 5576: my ($tmp)=keys(%current_permissions);
5577: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 5578: return \%current_permissions;
5579: }
5580:
5581: #---------------------------------------------Get portfolio file access controls
5582:
1.749 raeburn 5583: sub get_access_controls {
1.745 raeburn 5584: my ($current_permissions,$group,$file) = @_;
1.769 albertel 5585: my %access;
5586: my $real_file = $file;
5587: $file =~ s/\.meta$//;
1.745 raeburn 5588: if (defined($file)) {
1.749 raeburn 5589: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
5590: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 5591: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 5592: }
5593: }
1.745 raeburn 5594: } else {
1.749 raeburn 5595: foreach my $key (keys(%{$current_permissions})) {
5596: if ($key =~ /\0accesscontrol$/) {
5597: if (defined($group)) {
5598: if ($key !~ m-^\Q$group\E/-) {
5599: next;
5600: }
5601: }
5602: my ($fullpath) = split(/\0/,$key);
5603: if (ref($$current_permissions{$key}) eq 'HASH') {
5604: foreach my $control (keys(%{$$current_permissions{$key}})) {
5605: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
5606: }
5607: }
5608: }
5609: }
5610: }
5611: return %access;
5612: }
5613:
5614: sub modify_access_controls {
5615: my ($file_name,$changes,$domain,$user)=@_;
5616: my ($outcome,$deloutcome);
5617: my %store_permissions;
5618: my %new_values;
5619: my %new_control;
5620: my %translation;
5621: my @deletions = ();
5622: my $now = time;
5623: if (exists($$changes{'activate'})) {
5624: if (ref($$changes{'activate'}) eq 'HASH') {
5625: my @newitems = sort(keys(%{$$changes{'activate'}}));
5626: my $numnew = scalar(@newitems);
5627: for (my $i=0; $i<$numnew; $i++) {
5628: my $newkey = $newitems[$i];
5629: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 5630: if ($newkey =~ /^\d+:/) {
5631: $newkey =~ s/^(\d+)/$newid/;
5632: $translation{$1} = $newid;
5633: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
5634: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
5635: $translation{$1} = $newid;
5636: }
1.749 raeburn 5637: $new_values{$file_name."\0".$newkey} =
5638: $$changes{'activate'}{$newitems[$i]};
5639: $new_control{$newkey} = $now;
5640: }
5641: }
5642: }
5643: my %todelete;
5644: my %changed_items;
5645: foreach my $action ('delete','update') {
5646: if (exists($$changes{$action})) {
5647: if (ref($$changes{$action}) eq 'HASH') {
5648: foreach my $key (keys(%{$$changes{$action}})) {
5649: my ($itemnum) = ($key =~ /^([^:]+):/);
5650: if ($action eq 'delete') {
5651: $todelete{$itemnum} = 1;
5652: } else {
5653: $changed_items{$itemnum} = $key;
5654: }
5655: }
1.745 raeburn 5656: }
5657: }
1.749 raeburn 5658: }
5659: # get lock on access controls for file.
5660: my $lockhash = {
5661: $file_name."\0".'locked_access_records' => $env{'user.name'}.
5662: ':'.$env{'user.domain'},
5663: };
5664: my $tries = 0;
5665: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5666:
5667: while (($gotlock ne 'ok') && $tries <3) {
5668: $tries ++;
5669: sleep 1;
5670: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5671: }
5672: if ($gotlock eq 'ok') {
5673: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
5674: my ($tmp)=keys(%curr_permissions);
5675: if ($tmp=~/^error:/) { undef(%curr_permissions); }
5676: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
5677: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
5678: if (ref($curr_controls) eq 'HASH') {
5679: foreach my $control_item (keys(%{$curr_controls})) {
5680: my ($itemnum) = ($control_item =~ /^([^:]+):/);
5681: if (defined($todelete{$itemnum})) {
5682: push(@deletions,$file_name."\0".$control_item);
5683: } else {
5684: if (defined($changed_items{$itemnum})) {
5685: $new_control{$changed_items{$itemnum}} = $now;
5686: push(@deletions,$file_name."\0".$control_item);
5687: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
5688: } else {
5689: $new_control{$control_item} = $$curr_controls{$control_item};
5690: }
5691: }
1.745 raeburn 5692: }
5693: }
5694: }
1.749 raeburn 5695: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
5696: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
5697: $outcome = &put('file_permissions',\%new_values,$domain,$user);
5698: # remove lock
5699: my @del_lock = ($file_name."\0".'locked_access_records');
5700: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 5701: my ($file,$group);
5702: if (&is_course($domain,$user)) {
5703: ($group,$file) = split(/\//,$file_name,2);
5704: } else {
5705: $file = $file_name;
5706: }
5707: my $sqlresult =
5708: &update_portfolio_table($user,$domain,$file,'portfolio_access',
5709: $group);
1.749 raeburn 5710: } else {
5711: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 5712: }
1.749 raeburn 5713: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 5714: }
5715:
1.827 raeburn 5716: sub make_public_indefinitely {
5717: my ($requrl) = @_;
5718: my $now = time;
5719: my $action = 'activate';
5720: my $aclnum = 0;
5721: if (&is_portfolio_url($requrl)) {
5722: my (undef,$udom,$unum,$file_name,$group) =
5723: &parse_portfolio_url($requrl);
5724: my $current_perms = &get_portfile_permissions($udom,$unum);
5725: my %access_controls = &get_access_controls($current_perms,
5726: $group,$file_name);
5727: foreach my $key (keys(%{$access_controls{$file_name}})) {
5728: my ($num,$scope,$end,$start) =
5729: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5730: if ($scope eq 'public') {
5731: if ($start <= $now && $end == 0) {
5732: $action = 'none';
5733: } else {
5734: $action = 'update';
5735: $aclnum = $num;
5736: }
5737: last;
5738: }
5739: }
5740: if ($action eq 'none') {
5741: return 'ok';
5742: } else {
5743: my %changes;
5744: my $newend = 0;
5745: my $newstart = $now;
5746: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
5747: $changes{$action}{$newkey} = {
5748: type => 'public',
5749: time => {
5750: start => $newstart,
5751: end => $newend,
5752: },
5753: };
5754: my ($outcome,$deloutcome,$new_values,$translation) =
5755: &modify_access_controls($file_name,\%changes,$udom,$unum);
5756: return $outcome;
5757: }
5758: } else {
5759: return 'invalid';
5760: }
5761: }
5762:
1.745 raeburn 5763: #------------------------------------------------------Get Marked as Read Only
5764:
5765: sub get_marked_as_readonly {
5766: my ($domain,$user,$what,$group) = @_;
5767: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 5768: my @readonly_files;
1.629 banghart 5769: my $cmp1=$what;
5770: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 5771: while (my ($file_name,$value) = each(%{$current_permissions})) {
5772: if (defined($group)) {
5773: if ($file_name !~ m-^\Q$group\E/-) {
5774: next;
5775: }
5776: }
1.561 banghart 5777: if (ref($value) eq "ARRAY"){
5778: foreach my $stored_what (@{$value}) {
1.629 banghart 5779: my $cmp2=$stored_what;
1.759 albertel 5780: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 5781: $cmp2=join('',@{$stored_what});
1.745 raeburn 5782: }
1.629 banghart 5783: if ($cmp1 eq $cmp2) {
1.561 banghart 5784: push(@readonly_files, $file_name);
1.745 raeburn 5785: last;
1.563 banghart 5786: } elsif (!defined($what)) {
5787: push(@readonly_files, $file_name);
1.745 raeburn 5788: last;
1.561 banghart 5789: }
5790: }
1.745 raeburn 5791: }
1.561 banghart 5792: }
5793: return @readonly_files;
5794: }
1.577 banghart 5795: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 5796:
1.577 banghart 5797: sub get_marked_as_readonly_hash {
1.745 raeburn 5798: my ($current_permissions,$group,$what) = @_;
1.577 banghart 5799: my %readonly_files;
1.745 raeburn 5800: while (my ($file_name,$value) = each(%{$current_permissions})) {
5801: if (defined($group)) {
5802: if ($file_name !~ m-^\Q$group\E/-) {
5803: next;
5804: }
5805: }
1.577 banghart 5806: if (ref($value) eq "ARRAY"){
5807: foreach my $stored_what (@{$value}) {
1.745 raeburn 5808: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 5809: foreach my $lock_descriptor(@{$stored_what}) {
5810: if ($lock_descriptor eq 'graded') {
5811: $readonly_files{$file_name} = 'graded';
5812: } elsif ($lock_descriptor eq 'handback') {
5813: $readonly_files{$file_name} = 'handback';
5814: } else {
5815: if (!exists($readonly_files{$file_name})) {
5816: $readonly_files{$file_name} = 'locked';
5817: }
5818: }
1.745 raeburn 5819: }
1.750 banghart 5820: }
1.577 banghart 5821: }
5822: }
5823: }
5824: return %readonly_files;
5825: }
1.559 banghart 5826: # ------------------------------------------------------------ Unmark as Read Only
5827:
5828: sub unmark_as_readonly {
1.629 banghart 5829: # unmarks $file_name (if $file_name is defined), or all files locked by $what
5830: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 5831: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 5832: $file_name = &declutter_portfile($file_name);
1.634 albertel 5833: my $symb_crs = $what;
5834: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 5835: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 5836: my ($tmp)=keys(%current_permissions);
5837: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 5838: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 5839: foreach my $file (@readonly_files) {
1.759 albertel 5840: my $clean_file = &declutter_portfile($file);
5841: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 5842: my $current_locks = $current_permissions{$file};
1.563 banghart 5843: my @new_locks;
5844: my @del_keys;
5845: if (ref($current_locks) eq "ARRAY"){
5846: foreach my $locker (@{$current_locks}) {
1.632 albertel 5847: my $compare=$locker;
1.749 raeburn 5848: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 5849: $compare=join('',@{$locker});
1.746 raeburn 5850: if ($compare ne $symb_crs) {
5851: push(@new_locks, $locker);
5852: }
1.563 banghart 5853: }
5854: }
1.650 albertel 5855: if (scalar(@new_locks) > 0) {
1.563 banghart 5856: $current_permissions{$file} = \@new_locks;
5857: } else {
5858: push(@del_keys, $file);
1.613 albertel 5859: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 5860: delete($current_permissions{$file});
1.563 banghart 5861: }
5862: }
1.561 banghart 5863: }
1.613 albertel 5864: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5865: return;
5866: }
1.512 banghart 5867:
1.17 www 5868: # ------------------------------------------------------------ Directory lister
5869:
5870: sub dirlist {
1.253 stredwic 5871: my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_;
5872:
1.18 www 5873: $uri=~s/^\///;
5874: $uri=~s/\/$//;
1.253 stredwic 5875: my ($udom, $uname);
5876: (undef,$udom,$uname)=split(/\//,$uri);
5877: if(defined($userdomain)) {
5878: $udom = $userdomain;
5879: }
5880: if(defined($username)) {
5881: $uname = $username;
5882: }
5883:
5884: my $dirRoot = $perlvar{'lonDocRoot'};
5885: if(defined($alternateDirectoryRoot)) {
5886: $dirRoot = $alternateDirectoryRoot;
5887: $dirRoot =~ s/\/$//;
1.751 banghart 5888: }
1.253 stredwic 5889:
5890: if($udom) {
5891: if($uname) {
1.800 albertel 5892: my $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
5893: &homeserver($uname,$udom));
1.605 matthew 5894: my @listing_results;
5895: if ($listing eq 'unknown_cmd') {
1.800 albertel 5896: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
5897: &homeserver($uname,$udom));
1.605 matthew 5898: @listing_results = split(/:/,$listing);
5899: } else {
5900: @listing_results = map { &unescape($_); } split(/:/,$listing);
5901: }
5902: return @listing_results;
1.253 stredwic 5903: } elsif(!defined($alternateDirectoryRoot)) {
1.800 albertel 5904: my %allusers;
1.841 albertel 5905: my %servers = &get_servers($udom,'library');
5906: foreach my $tryserver (keys(%servers)) {
5907: my $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
5908: $udom, $tryserver);
5909: my @listing_results;
5910: if ($listing eq 'unknown_cmd') {
5911: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
5912: $udom, $tryserver);
5913: @listing_results = split(/:/,$listing);
5914: } else {
5915: @listing_results =
5916: map { &unescape($_); } split(/:/,$listing);
5917: }
5918: if ($listing_results[0] ne 'no_such_dir' &&
5919: $listing_results[0] ne 'empty' &&
5920: $listing_results[0] ne 'con_lost') {
5921: foreach my $line (@listing_results) {
5922: my ($entry) = split(/&/,$line,2);
5923: $allusers{$entry} = 1;
5924: }
5925: }
1.253 stredwic 5926: }
5927: my $alluserstr='';
1.800 albertel 5928: foreach my $user (sort(keys(%allusers))) {
5929: $alluserstr.=$user.'&user:';
1.253 stredwic 5930: }
5931: $alluserstr=~s/:$//;
5932: return split(/:/,$alluserstr);
5933: } else {
1.800 albertel 5934: return ('missing user name');
1.253 stredwic 5935: }
5936: } elsif(!defined($alternateDirectoryRoot)) {
1.841 albertel 5937: my @all_domains = sort(&all_domains());
5938: foreach my $domain (@all_domains) {
5939: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
5940: }
5941: return @all_domains;
5942: } else {
1.800 albertel 5943: return ('missing domain');
1.275 stredwic 5944: }
5945: }
5946:
5947: # --------------------------------------------- GetFileTimestamp
5948: # This function utilizes dirlist and returns the date stamp for
5949: # when it was last modified. It will also return an error of -1
5950: # if an error occurs
5951:
1.410 matthew 5952: ##
5953: ## FIXME: This subroutine assumes its caller knows something about the
5954: ## directory structure of the home server for the student ($root).
5955: ## Not a good assumption to make. Since this is for looking up files
5956: ## in user directories, the full path should be constructed by lond, not
5957: ## whatever machine we request data from.
5958: ##
1.275 stredwic 5959: sub GetFileTimestamp {
5960: my ($studentDomain,$studentName,$filename,$root)=@_;
1.807 albertel 5961: $studentDomain = &LONCAPA::clean_domain($studentDomain);
5962: $studentName = &LONCAPA::clean_username($studentName);
1.275 stredwic 5963: my $subdir=$studentName.'__';
5964: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
5965: my $proname="$studentDomain/$subdir/$studentName";
5966: $proname .= '/'.$filename;
1.375 matthew 5967: my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain,
5968: $studentName, $root);
1.275 stredwic 5969: my @stats = split('&', $fileStat);
5970: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 5971: # @stats contains first the filename, then the stat output
5972: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 5973: } else {
5974: return -1;
1.253 stredwic 5975: }
1.26 www 5976: }
5977:
1.712 albertel 5978: sub stat_file {
5979: my ($uri) = @_;
1.787 albertel 5980: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 5981:
1.712 albertel 5982: my ($udom,$uname,$file,$dir);
5983: if ($uri =~ m-^/(uploaded|editupload)/-) {
5984: ($udom,$uname,$file) =
1.811 albertel 5985: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 5986: $file = 'userfiles/'.$file;
1.740 www 5987: $dir = &propath($udom,$uname);
1.712 albertel 5988: }
5989: if ($uri =~ m-^/res/-) {
5990: ($udom,$uname) =
1.807 albertel 5991: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 5992: $file = $uri;
5993: }
5994:
5995: if (!$udom || !$uname || !$file) {
5996: # unable to handle the uri
5997: return ();
5998: }
5999:
6000: my ($result) = &dirlist($file,$udom,$uname,$dir);
6001: my @stats = split('&', $result);
1.721 banghart 6002:
1.712 albertel 6003: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
6004: shift(@stats); #filename is first
6005: return @stats;
6006: }
6007: return ();
6008: }
6009:
1.26 www 6010: # -------------------------------------------------------- Value of a Condition
6011:
1.713 albertel 6012: # gets the value of a specific preevaluated condition
6013: # stored in the string $env{user.state.<cid>}
6014: # or looks up a condition reference in the bighash and if if hasn't
6015: # already been evaluated recurses into docondval to get the value of
6016: # the condition, then memoizing it to
6017: # $env{user.state.<cid>.<condition>}
1.40 www 6018: sub directcondval {
6019: my $number=shift;
1.620 albertel 6020: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 6021: &Apache::lonuserstate::evalstate();
6022: }
1.713 albertel 6023: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
6024: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
6025: } elsif ($number =~ /^_/) {
6026: my $sub_condition;
6027: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
6028: &GDBM_READER(),0640)) {
6029: $sub_condition=$bighash{'conditions'.$number};
6030: untie(%bighash);
6031: }
6032: my $value = &docondval($sub_condition);
6033: &appenv('user.state.'.$env{'request.course.id'}.".$number" => $value);
6034: return $value;
6035: }
1.620 albertel 6036: if ($env{'user.state.'.$env{'request.course.id'}}) {
6037: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 6038: } else {
6039: return 2;
6040: }
6041: }
6042:
1.713 albertel 6043: # get the collection of conditions for this resource
1.26 www 6044: sub condval {
6045: my $condidx=shift;
1.54 www 6046: my $allpathcond='';
1.713 albertel 6047: foreach my $cond (split(/\|/,$condidx)) {
6048: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
6049: $allpathcond.=
6050: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
6051: }
1.191 harris41 6052: }
1.54 www 6053: $allpathcond=~s/\|$//;
1.713 albertel 6054: return &docondval($allpathcond);
6055: }
6056:
6057: #evaluates an expression of conditions
6058: sub docondval {
6059: my ($allpathcond) = @_;
6060: my $result=0;
6061: if ($env{'request.course.id'}
6062: && defined($allpathcond)) {
6063: my $operand='|';
6064: my @stack;
6065: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
6066: if ($chunk eq '(') {
6067: push @stack,($operand,$result);
6068: } elsif ($chunk eq ')') {
6069: my $before=pop @stack;
6070: if (pop @stack eq '&') {
6071: $result=$result>$before?$before:$result;
6072: } else {
6073: $result=$result>$before?$result:$before;
6074: }
6075: } elsif (($chunk eq '&') || ($chunk eq '|')) {
6076: $operand=$chunk;
6077: } else {
6078: my $new=directcondval($chunk);
6079: if ($operand eq '&') {
6080: $result=$result>$new?$new:$result;
6081: } else {
6082: $result=$result>$new?$result:$new;
6083: }
6084: }
6085: }
1.26 www 6086: }
6087: return $result;
1.421 albertel 6088: }
6089:
6090: # ---------------------------------------------------- Devalidate courseresdata
6091:
6092: sub devalidatecourseresdata {
6093: my ($coursenum,$coursedomain)=@_;
6094: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 6095: &devalidate_cache_new('courseres',$hashid);
1.28 www 6096: }
6097:
1.763 www 6098:
1.200 www 6099: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 6100: #
6101: # Parameters:
6102: # $coursenum - Number of the course.
6103: # $coursedomain - Domain at which the course was created.
6104: # Returns:
6105: # A hash of the course parameters along (I think) with timestamps
6106: # and version info.
1.877 foxr 6107:
1.624 albertel 6108: sub get_courseresdata {
6109: my ($coursenum,$coursedomain)=@_;
1.200 www 6110: my $coursehom=&homeserver($coursenum,$coursedomain);
6111: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 6112: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 6113: my %dumpreply;
1.417 albertel 6114: unless (defined($cached)) {
1.624 albertel 6115: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 6116: $result=\%dumpreply;
1.251 albertel 6117: my ($tmp) = keys(%dumpreply);
6118: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 6119: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 6120: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
6121: return $tmp;
1.416 albertel 6122: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 6123: $result=undef;
1.599 albertel 6124: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 6125: }
6126: }
1.624 albertel 6127: return $result;
6128: }
6129:
1.633 albertel 6130: sub devalidateuserresdata {
6131: my ($uname,$udom)=@_;
6132: my $hashid="$udom:$uname";
6133: &devalidate_cache_new('userres',$hashid);
6134: }
6135:
1.624 albertel 6136: sub get_userresdata {
6137: my ($uname,$udom)=@_;
6138: #most student don\'t have any data set, check if there is some data
6139: if (&EXT_cache_status($udom,$uname)) { return undef; }
6140:
6141: my $hashid="$udom:$uname";
6142: my ($result,$cached)=&is_cached_new('userres',$hashid);
6143: if (!defined($cached)) {
6144: my %resourcedata=&dump('resourcedata',$udom,$uname);
6145: $result=\%resourcedata;
6146: &do_cache_new('userres',$hashid,$result,600);
6147: }
6148: my ($tmp)=keys(%$result);
6149: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
6150: return $result;
6151: }
6152: #error 2 occurs when the .db doesn't exist
6153: if ($tmp!~/error: 2 /) {
1.672 albertel 6154: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 6155: " Trying to get resource data for ".
6156: $uname." at ".$udom.": ".
6157: $tmp."</font>");
6158: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 6159: #&EXT_cache_set($udom,$uname);
6160: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 6161: undef($tmp); # not really an error so don't send it back
1.624 albertel 6162: }
6163: return $tmp;
6164: }
1.879 foxr 6165: #----------------------------------------------- resdata - return resource data
6166: # Purpose:
6167: # Return resource data for either users or for a course.
6168: # Parameters:
6169: # $name - Course/user name.
6170: # $domain - Name of the domain the user/course is registered on.
6171: # $type - Type of thing $name is (must be 'course' or 'user'
6172: # @which - Array of names of resources desired.
6173: # Returns:
6174: # The value of the first reasource in @which that is found in the
6175: # resource hash.
6176: # Exceptional Conditions:
6177: # If the $type passed in is not valid (not the string 'course' or
6178: # 'user', an undefined reference is returned.
6179: # If none of the resources are found, an undef is returned
1.624 albertel 6180: sub resdata {
6181: my ($name,$domain,$type,@which)=@_;
6182: my $result;
6183: if ($type eq 'course') {
6184: $result=&get_courseresdata($name,$domain);
6185: } elsif ($type eq 'user') {
6186: $result=&get_userresdata($name,$domain);
6187: }
6188: if (!ref($result)) { return $result; }
1.251 albertel 6189: foreach my $item (@which) {
1.417 albertel 6190: if (defined($result->{$item})) {
6191: return $result->{$item};
1.251 albertel 6192: }
1.250 albertel 6193: }
1.291 albertel 6194: return undef;
1.200 www 6195: }
6196:
1.379 matthew 6197: #
6198: # EXT resource caching routines
6199: #
6200:
6201: sub clear_EXT_cache_status {
1.383 albertel 6202: &delenv('cache.EXT.');
1.379 matthew 6203: }
6204:
6205: sub EXT_cache_status {
6206: my ($target_domain,$target_user) = @_;
1.383 albertel 6207: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 6208: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 6209: # We know already the user has no data
6210: return 1;
6211: } else {
6212: return 0;
6213: }
6214: }
6215:
6216: sub EXT_cache_set {
6217: my ($target_domain,$target_user) = @_;
1.383 albertel 6218: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.633 albertel 6219: #&appenv($cachename => time);
1.379 matthew 6220: }
6221:
1.28 www 6222: # --------------------------------------------------------- Value of a Variable
1.58 www 6223: sub EXT {
1.715 albertel 6224:
1.395 albertel 6225: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 6226: unless ($varname) { return ''; }
1.218 albertel 6227: #get real user name/domain, courseid and symb
6228: my $courseid;
1.359 albertel 6229: my $publicuser;
1.427 www 6230: if ($symbparm) {
6231: $symbparm=&get_symb_from_alias($symbparm);
6232: }
1.218 albertel 6233: if (!($uname && $udom)) {
1.790 albertel 6234: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 6235: if (!$symbparm) { $symbparm=$cursymb; }
6236: } else {
1.620 albertel 6237: $courseid=$env{'request.course.id'};
1.218 albertel 6238: }
1.48 www 6239: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
6240: my $rest;
1.320 albertel 6241: if (defined($therest[0])) {
1.48 www 6242: $rest=join('.',@therest);
6243: } else {
6244: $rest='';
6245: }
1.320 albertel 6246:
1.57 www 6247: my $qualifierrest=$qualifier;
6248: if ($rest) { $qualifierrest.='.'.$rest; }
6249: my $spacequalifierrest=$space;
6250: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 6251: if ($realm eq 'user') {
1.48 www 6252: # --------------------------------------------------------------- user.resource
6253: if ($space eq 'resource') {
1.651 albertel 6254: if ( (defined($Apache::lonhomework::parsing_a_problem)
6255: || defined($Apache::lonhomework::parsing_a_task))
6256: &&
1.744 albertel 6257: ($symbparm eq &symbread()) ) {
6258: # if we are in the middle of processing the resource the
6259: # get the value we are planning on committing
6260: if (defined($Apache::lonhomework::results{$qualifierrest})) {
6261: return $Apache::lonhomework::results{$qualifierrest};
6262: } else {
6263: return $Apache::lonhomework::history{$qualifierrest};
6264: }
1.335 albertel 6265: } else {
1.359 albertel 6266: my %restored;
1.620 albertel 6267: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 6268: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
6269: } else {
6270: %restored=&restore($symbparm,$courseid,$udom,$uname);
6271: }
1.335 albertel 6272: return $restored{$qualifierrest};
6273: }
1.48 www 6274: # ----------------------------------------------------------------- user.access
6275: } elsif ($space eq 'access') {
1.218 albertel 6276: # FIXME - not supporting calls for a specific user
1.48 www 6277: return &allowed($qualifier,$rest);
6278: # ------------------------------------------ user.preferences, user.environment
6279: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 6280: if (($uname eq $env{'user.name'}) &&
6281: ($udom eq $env{'user.domain'})) {
6282: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 6283: } else {
1.359 albertel 6284: my %returnhash;
6285: if (!$publicuser) {
6286: %returnhash=&userenvironment($udom,$uname,
6287: $qualifierrest);
6288: }
1.218 albertel 6289: return $returnhash{$qualifierrest};
6290: }
1.48 www 6291: # ----------------------------------------------------------------- user.course
6292: } elsif ($space eq 'course') {
1.218 albertel 6293: # FIXME - not supporting calls for a specific user
1.620 albertel 6294: return $env{join('.',('request.course',$qualifier))};
1.48 www 6295: # ------------------------------------------------------------------- user.role
6296: } elsif ($space eq 'role') {
1.218 albertel 6297: # FIXME - not supporting calls for a specific user
1.620 albertel 6298: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 6299: if ($qualifier eq 'value') {
6300: return $role;
6301: } elsif ($qualifier eq 'extent') {
6302: return $where;
6303: }
6304: # ----------------------------------------------------------------- user.domain
6305: } elsif ($space eq 'domain') {
1.218 albertel 6306: return $udom;
1.48 www 6307: # ------------------------------------------------------------------- user.name
6308: } elsif ($space eq 'name') {
1.218 albertel 6309: return $uname;
1.48 www 6310: # ---------------------------------------------------- Any other user namespace
1.29 www 6311: } else {
1.359 albertel 6312: my %reply;
6313: if (!$publicuser) {
6314: %reply=&get($space,[$qualifierrest],$udom,$uname);
6315: }
6316: return $reply{$qualifierrest};
1.48 www 6317: }
1.236 www 6318: } elsif ($realm eq 'query') {
6319: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 6320: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
6321: [$spacequalifierrest]);
1.620 albertel 6322: return $env{'form.'.$spacequalifierrest};
1.236 www 6323: } elsif ($realm eq 'request') {
1.48 www 6324: # ------------------------------------------------------------- request.browser
6325: if ($space eq 'browser') {
1.430 www 6326: if ($qualifier eq 'textremote') {
1.676 albertel 6327: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 6328: return 1;
6329: } else {
6330: return 0;
6331: }
6332: } else {
1.620 albertel 6333: return $env{'browser.'.$qualifier};
1.430 www 6334: }
1.57 www 6335: # ------------------------------------------------------------ request.filename
6336: } else {
1.620 albertel 6337: return $env{'request.'.$spacequalifierrest};
1.29 www 6338: }
1.28 www 6339: } elsif ($realm eq 'course') {
1.48 www 6340: # ---------------------------------------------------------- course.description
1.620 albertel 6341: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 6342: } elsif ($realm eq 'resource') {
1.165 www 6343:
1.620 albertel 6344: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 6345: if (!$symbparm) { $symbparm=&symbread(); }
6346: }
1.693 albertel 6347:
6348: if ($space eq 'title') {
6349: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
6350: return &gettitle($symbparm);
6351: }
6352:
6353: if ($space eq 'map') {
6354: my ($map) = &decode_symb($symbparm);
6355: return &symbread($map);
6356: }
1.905 albertel 6357: if ($space eq 'filename') {
6358: if ($symbparm) {
6359: return &clutter((&decode_symb($symbparm))[2]);
6360: }
6361: return &hreflocation('',$env{'request.filename'});
6362: }
1.693 albertel 6363:
6364: my ($section, $group, @groups);
1.593 albertel 6365: my ($courselevelm,$courselevel);
1.539 albertel 6366: if ($symbparm && defined($courseid) &&
1.620 albertel 6367: $courseid eq $env{'request.course.id'}) {
1.165 www 6368:
1.218 albertel 6369: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 6370:
1.60 www 6371: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 6372: my $symbp=$symbparm;
1.735 albertel 6373: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 6374:
6375: my $symbparm=$symbp.'.'.$spacequalifierrest;
6376: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
6377:
1.620 albertel 6378: if (($env{'user.name'} eq $uname) &&
6379: ($env{'user.domain'} eq $udom)) {
6380: $section=$env{'request.course.sec'};
1.733 raeburn 6381: @groups = split(/:/,$env{'request.course.groups'});
6382: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 6383: } else {
1.539 albertel 6384: if (! defined($usection)) {
1.551 albertel 6385: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 6386: } else {
6387: $section = $usection;
6388: }
1.733 raeburn 6389: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 6390: }
6391:
6392: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
6393: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
6394: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
6395:
1.593 albertel 6396: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 6397: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 6398: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 6399:
1.60 www 6400: # ----------------------------------------------------------- first, check user
1.624 albertel 6401:
6402: my $userreply=&resdata($uname,$udom,'user',
6403: ($courselevelr,$courselevelm,
6404: $courselevel));
6405: if (defined($userreply)) { return $userreply; }
1.95 www 6406:
1.594 albertel 6407: # ------------------------------------------------ second, check some of course
1.684 raeburn 6408: my $coursereply;
1.691 raeburn 6409: if (@groups > 0) {
6410: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
6411: $mapparm,$spacequalifierrest);
1.684 raeburn 6412: if (defined($coursereply)) { return $coursereply; }
6413: }
1.96 www 6414:
1.684 raeburn 6415: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.624 albertel 6416: $env{'course.'.$courseid.'.domain'},
6417: 'course',
6418: ($seclevelr,$seclevelm,$seclevel,
6419: $courselevelr));
1.287 albertel 6420: if (defined($coursereply)) { return $coursereply; }
1.200 www 6421:
1.60 www 6422: # ------------------------------------------------------ third, check map parms
1.218 albertel 6423: my %parmhash=();
6424: my $thisparm='';
6425: if (tie(%parmhash,'GDBM_File',
1.620 albertel 6426: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 6427: &GDBM_READER(),0640)) {
1.218 albertel 6428: $thisparm=$parmhash{$symbparm};
6429: untie(%parmhash);
6430: }
6431: if ($thisparm) { return $thisparm; }
6432: }
1.594 albertel 6433: # ------------------------------------------ fourth, look in resource metadata
1.71 www 6434:
1.218 albertel 6435: $spacequalifierrest=~s/\./\_/;
1.282 albertel 6436: my $filename;
6437: if (!$symbparm) { $symbparm=&symbread(); }
6438: if ($symbparm) {
1.409 www 6439: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 6440: } else {
1.620 albertel 6441: $filename=$env{'request.filename'};
1.282 albertel 6442: }
6443: my $metadata=&metadata($filename,$spacequalifierrest);
1.288 albertel 6444: if (defined($metadata)) { return $metadata; }
1.282 albertel 6445: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.288 albertel 6446: if (defined($metadata)) { return $metadata; }
1.142 www 6447:
1.594 albertel 6448: # ---------------------------------------------- fourth, look in rest pf course
1.593 albertel 6449: if ($symbparm && defined($courseid) &&
1.620 albertel 6450: $courseid eq $env{'request.course.id'}) {
1.624 albertel 6451: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
6452: $env{'course.'.$courseid.'.domain'},
6453: 'course',
6454: ($courselevelm,$courselevel));
1.593 albertel 6455: if (defined($coursereply)) { return $coursereply; }
6456: }
1.145 www 6457: # ------------------------------------------------------------------ Cascade up
1.218 albertel 6458: unless ($space eq '0') {
1.336 albertel 6459: my @parts=split(/_/,$space);
6460: my $id=pop(@parts);
6461: my $part=join('_',@parts);
6462: if ($part eq '') { $part='0'; }
6463: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 6464: $symbparm,$udom,$uname,$section,1);
1.337 albertel 6465: if (defined($partgeneral)) { return $partgeneral; }
1.218 albertel 6466: }
1.395 albertel 6467: if ($recurse) { return undef; }
6468: my $pack_def=&packages_tab_default($filename,$varname);
6469: if (defined($pack_def)) { return $pack_def; }
1.71 www 6470:
1.48 www 6471: # ---------------------------------------------------- Any other user namespace
6472: } elsif ($realm eq 'environment') {
6473: # ----------------------------------------------------------------- environment
1.620 albertel 6474: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
6475: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 6476: } else {
1.770 albertel 6477: if ($uname eq 'anonymous' && $udom eq '') {
6478: return '';
6479: }
1.219 albertel 6480: my %returnhash=&userenvironment($udom,$uname,
6481: $spacequalifierrest);
6482: return $returnhash{$spacequalifierrest};
6483: }
1.28 www 6484: } elsif ($realm eq 'system') {
1.48 www 6485: # ----------------------------------------------------------------- system.time
6486: if ($space eq 'time') {
6487: return time;
6488: }
1.696 albertel 6489: } elsif ($realm eq 'server') {
6490: # ----------------------------------------------------------------- system.time
6491: if ($space eq 'name') {
6492: return $ENV{'SERVER_NAME'};
6493: }
1.28 www 6494: }
1.48 www 6495: return '';
1.61 www 6496: }
6497:
1.691 raeburn 6498: sub check_group_parms {
6499: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
6500: my @groupitems = ();
6501: my $resultitem;
6502: my @levels = ($symbparm,$mapparm,$what);
6503: foreach my $group (@{$groups}) {
6504: foreach my $level (@levels) {
6505: my $item = $courseid.'.['.$group.'].'.$level;
6506: push(@groupitems,$item);
6507: }
6508: }
6509: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
6510: $env{'course.'.$courseid.'.domain'},
6511: 'course',@groupitems);
6512: return $coursereply;
6513: }
6514:
6515: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 6516: my ($courseid,@groups) = @_;
6517: @groups = sort(@groups);
1.691 raeburn 6518: return @groups;
6519: }
6520:
1.395 albertel 6521: sub packages_tab_default {
6522: my ($uri,$varname)=@_;
6523: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 6524:
6525: my (@extension,@specifics,$do_default);
6526: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 6527: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 6528: if ($pack_type eq 'default') {
6529: $do_default=1;
6530: } elsif ($pack_type eq 'extension') {
6531: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 6532: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 6533: # only look at packages defaults for packages that this id is
1.738 albertel 6534: push(@specifics,[$package,$pack_type,$pack_part]);
6535: }
6536: }
6537: # first look for a package that matches the requested part id
6538: foreach my $package (@specifics) {
6539: my (undef,$pack_type,$pack_part)=@{$package};
6540: next if ($pack_part ne $part);
6541: if (defined($packagetab{"$pack_type&$name&default"})) {
6542: return $packagetab{"$pack_type&$name&default"};
6543: }
6544: }
6545: # look for any possible matching non extension_ package
6546: foreach my $package (@specifics) {
6547: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 6548: if (defined($packagetab{"$pack_type&$name&default"})) {
6549: return $packagetab{"$pack_type&$name&default"};
6550: }
1.585 albertel 6551: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 6552: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
6553: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 6554: }
6555: }
1.738 albertel 6556: # look for any posible extension_ match
6557: foreach my $package (@extension) {
6558: my ($package,$pack_type)=@{$package};
6559: if (defined($packagetab{"$pack_type&$name&default"})) {
6560: return $packagetab{"$pack_type&$name&default"};
6561: }
6562: if (defined($packagetab{$package."&$name&default"})) {
6563: return $packagetab{$package."&$name&default"};
6564: }
6565: }
6566: # look for a global default setting
6567: if ($do_default && defined($packagetab{"default&$name&default"})) {
6568: return $packagetab{"default&$name&default"};
6569: }
1.395 albertel 6570: return undef;
6571: }
6572:
1.334 albertel 6573: sub add_prefix_and_part {
6574: my ($prefix,$part)=@_;
6575: my $keyroot;
6576: if (defined($prefix) && $prefix !~ /^__/) {
6577: # prefix that has a part already
6578: $keyroot=$prefix;
6579: } elsif (defined($prefix)) {
6580: # prefix that is missing a part
6581: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
6582: } else {
6583: # no prefix at all
6584: if (defined($part)) { $keyroot='_'.$part; }
6585: }
6586: return $keyroot;
6587: }
6588:
1.71 www 6589: # ---------------------------------------------------------------- Get metadata
6590:
1.599 albertel 6591: my %metaentry;
1.71 www 6592: sub metadata {
1.176 www 6593: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 6594: $uri=&declutter($uri);
1.288 albertel 6595: # if it is a non metadata possible uri return quickly
1.529 albertel 6596: if (($uri eq '') ||
6597: (($uri =~ m|^/*adm/|) &&
1.698 albertel 6598: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.423 albertel 6599: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
1.807 albertel 6600: ($uri =~ m|home/$match_username/public_html/|)) {
1.468 albertel 6601: return undef;
1.288 albertel 6602: }
1.73 www 6603: my $filename=$uri;
6604: $uri=~s/\.meta$//;
1.172 www 6605: #
6606: # Is the metadata already cached?
1.177 www 6607: # Look at timestamp of caching
1.172 www 6608: # Everything is cached by the main uri, libraries are never directly cached
6609: #
1.428 albertel 6610: if (!defined($liburi)) {
1.599 albertel 6611: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 6612: if (defined($cached)) { return $result->{':'.$what}; }
6613: }
6614: {
1.172 www 6615: #
6616: # Is this a recursive call for a library?
6617: #
1.599 albertel 6618: # if (! exists($metacache{$uri})) {
6619: # $metacache{$uri}={};
6620: # }
1.171 www 6621: if ($liburi) {
6622: $liburi=&declutter($liburi);
6623: $filename=$liburi;
1.401 bowersj2 6624: } else {
1.599 albertel 6625: &devalidate_cache_new('meta',$uri);
6626: undef(%metaentry);
1.401 bowersj2 6627: }
1.140 www 6628: my %metathesekeys=();
1.73 www 6629: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 6630: my $metastring;
1.768 albertel 6631: if ($uri !~ m -^(editupload)/-) {
1.543 albertel 6632: my $file=&filelocation('',&clutter($filename));
1.599 albertel 6633: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 6634: $metastring=&getfile($file);
1.489 albertel 6635: }
1.208 albertel 6636: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 6637: my $token;
1.140 www 6638: undef %metathesekeys;
1.71 www 6639: while ($token=$parser->get_token) {
1.339 albertel 6640: if ($token->[0] eq 'S') {
6641: if (defined($token->[2]->{'package'})) {
1.172 www 6642: #
6643: # This is a package - get package info
6644: #
1.339 albertel 6645: my $package=$token->[2]->{'package'};
6646: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
6647: if (defined($token->[2]->{'id'})) {
6648: $keyroot.='_'.$token->[2]->{'id'};
6649: }
1.599 albertel 6650: if ($metaentry{':packages'}) {
6651: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 6652: } else {
1.599 albertel 6653: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 6654: }
1.736 albertel 6655: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 6656: my $part=$keyroot;
6657: $part=~s/^\_//;
1.736 albertel 6658: if ($pack_entry=~/^\Q$package\E\&/ ||
6659: $pack_entry=~/^\Q$package\E_0\&/) {
6660: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 6661: # ignore package.tab specified default values
6662: # here &package_tab_default() will fetch those
6663: if ($subp eq 'default') { next; }
1.736 albertel 6664: my $value=$packagetab{$pack_entry};
1.432 albertel 6665: my $unikey;
6666: if ($pack =~ /_0$/) {
6667: $unikey='parameter_0_'.$name;
6668: $part=0;
6669: } else {
6670: $unikey='parameter'.$keyroot.'_'.$name;
6671: }
1.339 albertel 6672: if ($subp eq 'display') {
6673: $value.=' [Part: '.$part.']';
6674: }
1.599 albertel 6675: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 6676: $metathesekeys{$unikey}=1;
1.599 albertel 6677: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6678: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 6679: }
1.599 albertel 6680: if (defined($metaentry{':'.$unikey.'.default'})) {
6681: $metaentry{':'.$unikey}=
6682: $metaentry{':'.$unikey.'.default'};
1.356 albertel 6683: }
1.339 albertel 6684: }
6685: }
6686: } else {
1.172 www 6687: #
6688: # This is not a package - some other kind of start tag
1.339 albertel 6689: #
6690: my $entry=$token->[1];
6691: my $unikey;
6692: if ($entry eq 'import') {
6693: $unikey='';
6694: } else {
6695: $unikey=$entry;
6696: }
6697: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
6698:
6699: if (defined($token->[2]->{'id'})) {
6700: $unikey.='_'.$token->[2]->{'id'};
6701: }
1.175 www 6702:
1.339 albertel 6703: if ($entry eq 'import') {
1.175 www 6704: #
6705: # Importing a library here
1.339 albertel 6706: #
6707: if ($depthcount<20) {
6708: my $location=$parser->get_text('/import');
6709: my $dir=$filename;
6710: $dir=~s|[^/]*$||;
6711: $location=&filelocation($dir,$location);
1.736 albertel 6712: my $metadata =
6713: &metadata($uri,'keys', $location,$unikey,
6714: $depthcount+1);
6715: foreach my $meta (split(',',$metadata)) {
6716: $metaentry{':'.$meta}=$metaentry{':'.$meta};
6717: $metathesekeys{$meta}=1;
1.339 albertel 6718: }
6719: }
6720: } else {
6721:
6722: if (defined($token->[2]->{'name'})) {
6723: $unikey.='_'.$token->[2]->{'name'};
6724: }
6725: $metathesekeys{$unikey}=1;
1.736 albertel 6726: foreach my $param (@{$token->[3]}) {
6727: $metaentry{':'.$unikey.'.'.$param} =
6728: $token->[2]->{$param};
1.339 albertel 6729: }
6730: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 6731: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 6732: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
6733: # only ws inside the tag, and not in default, so use default
6734: # as value
1.599 albertel 6735: $metaentry{':'.$unikey}=$default;
1.908 albertel 6736: } elsif ( $internaltext =~ /\S/ ) {
6737: # something interesting inside the tag
6738: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 6739: } else {
1.908 albertel 6740: # no interesting values, don't set a default
1.339 albertel 6741: }
1.172 www 6742: # end of not-a-package not-a-library import
1.339 albertel 6743: }
1.172 www 6744: # end of not-a-package start tag
1.339 albertel 6745: }
1.172 www 6746: # the next is the end of "start tag"
1.339 albertel 6747: }
6748: }
1.483 albertel 6749: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 6750: $extension = lc($extension);
6751: if ($extension eq 'htm') { $extension='html'; }
6752:
1.737 albertel 6753: foreach my $key (keys(%packagetab)) {
1.483 albertel 6754: #no specific packages #how's our extension
6755: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 6756: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 6757: \%metathesekeys);
6758: }
1.883 albertel 6759:
6760: if (!exists($metaentry{':packages'})
6761: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 6762: foreach my $key (keys(%packagetab)) {
1.483 albertel 6763: #no specific packages well let's get default then
6764: if ($key!~/^default&/) { next; }
1.488 albertel 6765: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 6766: \%metathesekeys);
6767: }
6768: }
1.338 www 6769: # are there custom rights to evaluate
1.599 albertel 6770: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 6771:
1.338 www 6772: #
6773: # Importing a rights file here
1.339 albertel 6774: #
6775: unless ($depthcount) {
1.599 albertel 6776: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 6777: my $dir=$filename;
6778: $dir=~s|[^/]*$||;
6779: $location=&filelocation($dir,$location);
1.736 albertel 6780: my $rights_metadata =
6781: &metadata($uri,'keys',$location,'_rights',
6782: $depthcount+1);
6783: foreach my $rights (split(',',$rights_metadata)) {
6784: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
6785: $metathesekeys{$rights}=1;
1.339 albertel 6786: }
6787: }
6788: }
1.737 albertel 6789: # uniqifiy package listing
6790: my %seen;
6791: my @uniq_packages =
6792: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
6793: $metaentry{':packages'} = join(',',@uniq_packages);
6794:
6795: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 6796: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
6797: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.699 albertel 6798: &do_cache_new('meta',$uri,\%metaentry,60*60);
1.177 www 6799: # this is the end of "was not already recently cached
1.71 www 6800: }
1.599 albertel 6801: return $metaentry{':'.$what};
1.261 albertel 6802: }
6803:
1.488 albertel 6804: sub metadata_create_package_def {
1.483 albertel 6805: my ($uri,$key,$package,$metathesekeys)=@_;
6806: my ($pack,$name,$subp)=split(/\&/,$key);
6807: if ($subp eq 'default') { next; }
6808:
1.599 albertel 6809: if (defined($metaentry{':packages'})) {
6810: $metaentry{':packages'}.=','.$package;
1.483 albertel 6811: } else {
1.599 albertel 6812: $metaentry{':packages'}=$package;
1.483 albertel 6813: }
6814: my $value=$packagetab{$key};
6815: my $unikey;
6816: $unikey='parameter_0_'.$name;
1.599 albertel 6817: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 6818: $$metathesekeys{$unikey}=1;
1.599 albertel 6819: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6820: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 6821: }
1.599 albertel 6822: if (defined($metaentry{':'.$unikey.'.default'})) {
6823: $metaentry{':'.$unikey}=
6824: $metaentry{':'.$unikey.'.default'};
1.483 albertel 6825: }
6826: }
6827:
1.261 albertel 6828: sub metadata_generate_part0 {
6829: my ($metadata,$metacache,$uri) = @_;
6830: my %allnames;
1.737 albertel 6831: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 6832: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 6833: my $part=$$metacache{':'.$metakey.'.part'};
6834: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 6835: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 6836: $allnames{$name}=$part;
6837: }
6838: }
6839: }
6840: foreach my $name (keys(%allnames)) {
6841: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 6842: my $key=":parameter_0_$name";
1.261 albertel 6843: $$metacache{"$key.part"}='0';
6844: $$metacache{"$key.name"}=$name;
1.428 albertel 6845: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 6846: $allnames{$name}.'_'.$name.
6847: '.type'};
1.428 albertel 6848: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 6849: '.display'};
1.644 www 6850: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 6851: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 6852: $$metacache{"$key.display"}=$olddis;
6853: }
1.71 www 6854: }
6855:
1.764 albertel 6856: # ------------------------------------------------------ Devalidate title cache
6857:
6858: sub devalidate_title_cache {
6859: my ($url)=@_;
6860: if (!$env{'request.course.id'}) { return; }
6861: my $symb=&symbread($url);
6862: if (!$symb) { return; }
6863: my $key=$env{'request.course.id'}."\0".$symb;
6864: &devalidate_cache_new('title',$key);
6865: }
6866:
1.301 www 6867: # ------------------------------------------------- Get the title of a resource
6868:
6869: sub gettitle {
6870: my $urlsymb=shift;
6871: my $symb=&symbread($urlsymb);
1.534 albertel 6872: if ($symb) {
1.620 albertel 6873: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 6874: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 6875: if (defined($cached)) {
6876: return $result;
6877: }
1.534 albertel 6878: my ($map,$resid,$url)=&decode_symb($symb);
6879: my $title='';
1.907 albertel 6880: if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
6881: $title = $env{'course.'.$env{'request.course.id'}.'.description'};
6882: } else {
6883: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
6884: &GDBM_READER(),0640)) {
6885: my $mapid=$bighash{'map_pc_'.&clutter($map)};
6886: $title=$bighash{'title_'.$mapid.'.'.$resid};
6887: untie(%bighash);
6888: }
1.534 albertel 6889: }
6890: $title=~s/\&colon\;/\:/gs;
6891: if ($title) {
1.599 albertel 6892: return &do_cache_new('title',$key,$title,600);
1.534 albertel 6893: }
6894: $urlsymb=$url;
6895: }
6896: my $title=&metadata($urlsymb,'title');
6897: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
6898: return $title;
1.301 www 6899: }
1.613 albertel 6900:
1.614 albertel 6901: sub get_slot {
6902: my ($which,$cnum,$cdom)=@_;
6903: if (!$cnum || !$cdom) {
1.790 albertel 6904: (undef,my $courseid)=&whichuser();
1.620 albertel 6905: $cdom=$env{'course.'.$courseid.'.domain'};
6906: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 6907: }
1.703 albertel 6908: my $key=join("\0",'slots',$cdom,$cnum,$which);
6909: my %slotinfo;
6910: if (exists($remembered{$key})) {
6911: $slotinfo{$which} = $remembered{$key};
6912: } else {
6913: %slotinfo=&get('slots',[$which],$cdom,$cnum);
6914: &Apache::lonhomework::showhash(%slotinfo);
6915: my ($tmp)=keys(%slotinfo);
6916: if ($tmp=~/^error:/) { return (); }
6917: $remembered{$key} = $slotinfo{$which};
6918: }
1.616 albertel 6919: if (ref($slotinfo{$which}) eq 'HASH') {
6920: return %{$slotinfo{$which}};
6921: }
6922: return $slotinfo{$which};
1.614 albertel 6923: }
1.31 www 6924: # ------------------------------------------------- Update symbolic store links
6925:
6926: sub symblist {
6927: my ($mapname,%newhash)=@_;
1.438 www 6928: $mapname=&deversion(&declutter($mapname));
1.31 www 6929: my %hash;
1.620 albertel 6930: if (($env{'request.course.fn'}) && (%newhash)) {
6931: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 6932: &GDBM_WRCREAT(),0640)) {
1.711 albertel 6933: foreach my $url (keys %newhash) {
6934: next if ($url eq 'last_known'
6935: && $env{'form.no_update_last_known'});
6936: $hash{declutter($url)}=&encode_symb($mapname,
6937: $newhash{$url}->[1],
6938: $newhash{$url}->[0]);
1.191 harris41 6939: }
1.31 www 6940: if (untie(%hash)) {
6941: return 'ok';
6942: }
6943: }
6944: }
6945: return 'error';
1.212 www 6946: }
6947:
6948: # --------------------------------------------------------------- Verify a symb
6949:
6950: sub symbverify {
1.510 www 6951: my ($symb,$thisurl)=@_;
6952: my $thisfn=$thisurl;
1.439 www 6953: $thisfn=&declutter($thisfn);
1.215 www 6954: # direct jump to resource in page or to a sequence - will construct own symbs
6955: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
6956: # check URL part
1.409 www 6957: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 6958:
1.431 www 6959: unless ($url eq $thisfn) { return 0; }
1.213 www 6960:
1.216 www 6961: $symb=&symbclean($symb);
1.510 www 6962: $thisurl=&deversion($thisurl);
1.439 www 6963: $thisfn=&deversion($thisfn);
1.213 www 6964:
6965: my %bighash;
6966: my $okay=0;
1.431 www 6967:
1.620 albertel 6968: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 6969: &GDBM_READER(),0640)) {
1.510 www 6970: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 6971: unless ($ids) {
1.510 www 6972: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 6973: }
6974: if ($ids) {
6975: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 6976: foreach my $id (split(/\,/,$ids)) {
6977: my ($mapid,$resid)=split(/\./,$id);
1.216 www 6978: if (
6979: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
6980: eq $symb) {
1.620 albertel 6981: if (($env{'request.role.adv'}) ||
1.800 albertel 6982: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 6983: $okay=1;
6984: }
6985: }
1.216 www 6986: }
6987: }
1.213 www 6988: untie(%bighash);
6989: }
6990: return $okay;
1.31 www 6991: }
6992:
1.210 www 6993: # --------------------------------------------------------------- Clean-up symb
6994:
6995: sub symbclean {
6996: my $symb=shift;
1.568 albertel 6997: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 6998: # remove version from map
6999: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 7000:
1.210 www 7001: # remove version from URL
7002: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 7003:
1.507 www 7004: # remove wrapper
7005:
1.510 www 7006: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 7007: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 7008: return $symb;
1.409 www 7009: }
7010:
7011: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 7012:
7013: sub encode_symb {
7014: my ($map,$resid,$url)=@_;
7015: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
7016: }
1.409 www 7017:
7018: sub decode_symb {
1.568 albertel 7019: my $symb=shift;
7020: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
7021: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 7022: return (&fixversion($map),$resid,&fixversion($url));
7023: }
7024:
7025: sub fixversion {
7026: my $fn=shift;
1.609 banghart 7027: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 7028: my %bighash;
7029: my $uri=&clutter($fn);
1.620 albertel 7030: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 7031: # is this cached?
1.599 albertel 7032: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 7033: if (defined($cached)) { return $result; }
7034: # unfortunately not cached, or expired
1.620 albertel 7035: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 7036: &GDBM_READER(),0640)) {
7037: if ($bighash{'version_'.$uri}) {
7038: my $version=$bighash{'version_'.$uri};
1.444 www 7039: unless (($version eq 'mostrecent') ||
7040: ($version==&getversion($uri))) {
1.440 www 7041: $uri=~s/\.(\w+)$/\.$version\.$1/;
7042: }
7043: }
7044: untie %bighash;
1.413 www 7045: }
1.599 albertel 7046: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 7047: }
7048:
7049: sub deversion {
7050: my $url=shift;
7051: $url=~s/\.\d+\.(\w+)$/\.$1/;
7052: return $url;
1.210 www 7053: }
7054:
1.31 www 7055: # ------------------------------------------------------ Return symb list entry
7056:
7057: sub symbread {
1.249 www 7058: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 7059: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 7060: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 7061: # no filename provided? try from environment
1.44 www 7062: unless ($thisfn) {
1.620 albertel 7063: if ($env{'request.symb'}) {
7064: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 7065: }
1.620 albertel 7066: $thisfn=$env{'request.filename'};
1.44 www 7067: }
1.569 albertel 7068: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 7069: # is that filename actually a symb? Verify, clean, and return
7070: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 7071: if (&symbverify($thisfn,$1)) {
1.620 albertel 7072: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 7073: }
1.242 www 7074: }
1.44 www 7075: $thisfn=declutter($thisfn);
1.31 www 7076: my %hash;
1.37 www 7077: my %bighash;
7078: my $syval='';
1.620 albertel 7079: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 7080: my $targetfn = $thisfn;
1.609 banghart 7081: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 7082: $targetfn = 'adm/wrapper/'.$thisfn;
7083: }
1.687 albertel 7084: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
7085: $targetfn=$1;
7086: }
1.620 albertel 7087: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 7088: &GDBM_READER(),0640)) {
1.481 raeburn 7089: $syval=$hash{$targetfn};
1.37 www 7090: untie(%hash);
7091: }
7092: # ---------------------------------------------------------- There was an entry
7093: if ($syval) {
1.601 albertel 7094: #unless ($syval=~/\_\d+$/) {
1.620 albertel 7095: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.601 albertel 7096: #&appenv('request.ambiguous' => $thisfn);
1.620 albertel 7097: #return $env{$cache_str}='';
1.601 albertel 7098: #}
7099: #$syval.=$1;
7100: #}
1.37 www 7101: } else {
7102: # ------------------------------------------------------- Was not in symb table
1.620 albertel 7103: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 7104: &GDBM_READER(),0640)) {
1.37 www 7105: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 7106: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 7107: unless ($ids) {
7108: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 7109: }
7110: unless ($ids) {
7111: # alias?
7112: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 7113: }
1.37 www 7114: if ($ids) {
7115: # ------------------------------------------------------------------- Has ID(s)
7116: my @possibilities=split(/\,/,$ids);
1.39 www 7117: if ($#possibilities==0) {
7118: # ----------------------------------------------- There is only one possibility
1.37 www 7119: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 7120: $syval=&encode_symb($bighash{'map_id_'.$mapid},
7121: $resid,$thisfn);
1.249 www 7122: } elsif (!$donotrecurse) {
1.39 www 7123: # ------------------------------------------ There is more than one possibility
7124: my $realpossible=0;
1.800 albertel 7125: foreach my $id (@possibilities) {
7126: my $file=$bighash{'src_'.$id};
1.39 www 7127: if (&allowed('bre',$file)) {
1.800 albertel 7128: my ($mapid,$resid)=split(/\./,$id);
1.39 www 7129: if ($bighash{'map_type_'.$mapid} ne 'page') {
7130: $realpossible++;
1.626 albertel 7131: $syval=&encode_symb($bighash{'map_id_'.$mapid},
7132: $resid,$thisfn);
1.39 www 7133: }
7134: }
1.191 harris41 7135: }
1.39 www 7136: if ($realpossible!=1) { $syval=''; }
1.249 www 7137: } else {
7138: $syval='';
1.37 www 7139: }
7140: }
7141: untie(%bighash)
1.481 raeburn 7142: }
1.31 www 7143: }
1.62 www 7144: if ($syval) {
1.620 albertel 7145: return $env{$cache_str}=$syval;
1.62 www 7146: }
1.31 www 7147: }
1.44 www 7148: &appenv('request.ambiguous' => $thisfn);
1.620 albertel 7149: return $env{$cache_str}='';
1.31 www 7150: }
7151:
7152: # ---------------------------------------------------------- Return random seed
7153:
1.32 www 7154: sub numval {
7155: my $txt=shift;
7156: $txt=~tr/A-J/0-9/;
7157: $txt=~tr/a-j/0-9/;
7158: $txt=~tr/K-T/0-9/;
7159: $txt=~tr/k-t/0-9/;
7160: $txt=~tr/U-Z/0-5/;
7161: $txt=~tr/u-z/0-5/;
7162: $txt=~s/\D//g;
1.564 albertel 7163: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 7164: return int($txt);
1.368 albertel 7165: }
7166:
1.484 albertel 7167: sub numval2 {
7168: my $txt=shift;
7169: $txt=~tr/A-J/0-9/;
7170: $txt=~tr/a-j/0-9/;
7171: $txt=~tr/K-T/0-9/;
7172: $txt=~tr/k-t/0-9/;
7173: $txt=~tr/U-Z/0-5/;
7174: $txt=~tr/u-z/0-5/;
7175: $txt=~s/\D//g;
7176: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
7177: my $total;
7178: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 7179: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 7180: return int($total);
7181: }
7182:
1.575 albertel 7183: sub numval3 {
7184: use integer;
7185: my $txt=shift;
7186: $txt=~tr/A-J/0-9/;
7187: $txt=~tr/a-j/0-9/;
7188: $txt=~tr/K-T/0-9/;
7189: $txt=~tr/k-t/0-9/;
7190: $txt=~tr/U-Z/0-5/;
7191: $txt=~tr/u-z/0-5/;
7192: $txt=~s/\D//g;
7193: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
7194: my $total;
7195: foreach my $val (@txts) { $total+=$val; }
7196: if ($_64bit) { $total=(($total<<32)>>32); }
7197: return $total;
7198: }
7199:
1.675 albertel 7200: sub digest {
7201: my ($data)=@_;
7202: my $digest=&Digest::MD5::md5($data);
7203: my ($a,$b,$c,$d)=unpack("iiii",$digest);
7204: my ($e,$f);
7205: {
7206: use integer;
7207: $e=($a+$b);
7208: $f=($c+$d);
7209: if ($_64bit) {
7210: $e=(($e<<32)>>32);
7211: $f=(($f<<32)>>32);
7212: }
7213: }
7214: if (wantarray) {
7215: return ($e,$f);
7216: } else {
7217: my $g;
7218: {
7219: use integer;
7220: $g=($e+$f);
7221: if ($_64bit) {
7222: $g=(($g<<32)>>32);
7223: }
7224: }
7225: return $g;
7226: }
7227: }
7228:
1.368 albertel 7229: sub latest_rnd_algorithm_id {
1.675 albertel 7230: return '64bit5';
1.366 albertel 7231: }
1.32 www 7232:
1.503 albertel 7233: sub get_rand_alg {
7234: my ($courseid)=@_;
1.790 albertel 7235: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 7236: if ($courseid) {
1.620 albertel 7237: return $env{"course.$courseid.rndseed"};
1.503 albertel 7238: }
7239: return &latest_rnd_algorithm_id();
7240: }
7241:
1.562 albertel 7242: sub validCODE {
7243: my ($CODE)=@_;
7244: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
7245: return 0;
7246: }
7247:
1.491 albertel 7248: sub getCODE {
1.620 albertel 7249: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 7250: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
7251: defined($Apache::lonhomework::parsing_a_task) ) &&
7252: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 7253: return $Apache::lonhomework::history{'resource.CODE'};
7254: }
7255: return undef;
7256: }
7257:
1.31 www 7258: sub rndseed {
1.155 albertel 7259: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 7260: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.896 albertel 7261: if (!defined($symb)) {
1.366 albertel 7262: unless ($symb=$wsymb) { return time; }
7263: }
7264: if (!$courseid) { $courseid=$wcourseid; }
7265: if (!$domain) { $domain=$wdomain; }
7266: if (!$username) { $username=$wusername }
1.503 albertel 7267: my $which=&get_rand_alg();
1.803 albertel 7268:
1.491 albertel 7269: if (defined(&getCODE())) {
1.675 albertel 7270: if ($which eq '64bit5') {
7271: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
7272: } elsif ($which eq '64bit4') {
1.575 albertel 7273: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
7274: } else {
7275: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
7276: }
1.675 albertel 7277: } elsif ($which eq '64bit5') {
7278: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 7279: } elsif ($which eq '64bit4') {
7280: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 7281: } elsif ($which eq '64bit3') {
7282: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 7283: } elsif ($which eq '64bit2') {
7284: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 7285: } elsif ($which eq '64bit') {
7286: return &rndseed_64bit($symb,$courseid,$domain,$username);
7287: }
7288: return &rndseed_32bit($symb,$courseid,$domain,$username);
7289: }
7290:
7291: sub rndseed_32bit {
7292: my ($symb,$courseid,$domain,$username)=@_;
7293: {
7294: use integer;
7295: my $symbchck=unpack("%32C*",$symb) << 27;
7296: my $symbseed=numval($symb) << 22;
7297: my $namechck=unpack("%32C*",$username) << 17;
7298: my $nameseed=numval($username) << 12;
7299: my $domainseed=unpack("%32C*",$domain) << 7;
7300: my $courseseed=unpack("%32C*",$courseid);
7301: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 7302: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7303: #&logthis("rndseed :$num:$symb");
1.564 albertel 7304: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 7305: return $num;
7306: }
7307: }
7308:
7309: sub rndseed_64bit {
7310: my ($symb,$courseid,$domain,$username)=@_;
7311: {
7312: use integer;
7313: my $symbchck=unpack("%32S*",$symb) << 21;
7314: my $symbseed=numval($symb) << 10;
7315: my $namechck=unpack("%32S*",$username);
7316:
7317: my $nameseed=numval($username) << 21;
7318: my $domainseed=unpack("%32S*",$domain) << 10;
7319: my $courseseed=unpack("%32S*",$courseid);
7320:
7321: my $num1=$symbchck+$symbseed+$namechck;
7322: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7323: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7324: #&logthis("rndseed :$num:$symb");
1.564 albertel 7325: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 7326: return "$num1,$num2";
1.155 albertel 7327: }
1.366 albertel 7328: }
7329:
1.443 albertel 7330: sub rndseed_64bit2 {
7331: my ($symb,$courseid,$domain,$username)=@_;
7332: {
7333: use integer;
7334: # strings need to be an even # of cahracters long, it it is odd the
7335: # last characters gets thrown away
7336: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7337: my $symbseed=numval($symb) << 10;
7338: my $namechck=unpack("%32S*",$username.' ');
7339:
7340: my $nameseed=numval($username) << 21;
1.501 albertel 7341: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7342: my $courseseed=unpack("%32S*",$courseid.' ');
7343:
7344: my $num1=$symbchck+$symbseed+$namechck;
7345: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7346: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7347: #&logthis("rndseed :$num:$symb");
1.803 albertel 7348: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 7349: return "$num1,$num2";
7350: }
7351: }
7352:
7353: sub rndseed_64bit3 {
7354: my ($symb,$courseid,$domain,$username)=@_;
7355: {
7356: use integer;
7357: # strings need to be an even # of cahracters long, it it is odd the
7358: # last characters gets thrown away
7359: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7360: my $symbseed=numval2($symb) << 10;
7361: my $namechck=unpack("%32S*",$username.' ');
7362:
7363: my $nameseed=numval2($username) << 21;
1.443 albertel 7364: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7365: my $courseseed=unpack("%32S*",$courseid.' ');
7366:
7367: my $num1=$symbchck+$symbseed+$namechck;
7368: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7369: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7370: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 7371: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7372:
1.503 albertel 7373: return "$num1:$num2";
1.443 albertel 7374: }
7375: }
7376:
1.575 albertel 7377: sub rndseed_64bit4 {
7378: my ($symb,$courseid,$domain,$username)=@_;
7379: {
7380: use integer;
7381: # strings need to be an even # of cahracters long, it it is odd the
7382: # last characters gets thrown away
7383: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7384: my $symbseed=numval3($symb) << 10;
7385: my $namechck=unpack("%32S*",$username.' ');
7386:
7387: my $nameseed=numval3($username) << 21;
7388: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7389: my $courseseed=unpack("%32S*",$courseid.' ');
7390:
7391: my $num1=$symbchck+$symbseed+$namechck;
7392: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7393: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7394: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 7395: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7396:
7397: return "$num1:$num2";
7398: }
7399: }
7400:
1.675 albertel 7401: sub rndseed_64bit5 {
7402: my ($symb,$courseid,$domain,$username)=@_;
7403: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
7404: return "$num1:$num2";
7405: }
7406:
1.366 albertel 7407: sub rndseed_CODE_64bit {
7408: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 7409: {
1.366 albertel 7410: use integer;
1.443 albertel 7411: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 7412: my $symbseed=numval2($symb);
1.491 albertel 7413: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7414: my $CODEseed=numval(&getCODE());
1.443 albertel 7415: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 7416: my $num1=$symbseed+$CODEchck;
7417: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7418: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7419: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 7420: if ($_64bit) { $num1=(($num1<<32)>>32); }
7421: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 7422: return "$num1:$num2";
1.366 albertel 7423: }
7424: }
7425:
1.575 albertel 7426: sub rndseed_CODE_64bit4 {
7427: my ($symb,$courseid,$domain,$username)=@_;
7428: {
7429: use integer;
7430: my $symbchck=unpack("%32S*",$symb.' ') << 16;
7431: my $symbseed=numval3($symb);
7432: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7433: my $CODEseed=numval3(&getCODE());
7434: my $courseseed=unpack("%32S*",$courseid.' ');
7435: my $num1=$symbseed+$CODEchck;
7436: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7437: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7438: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 7439: if ($_64bit) { $num1=(($num1<<32)>>32); }
7440: if ($_64bit) { $num2=(($num2<<32)>>32); }
7441: return "$num1:$num2";
7442: }
7443: }
7444:
1.675 albertel 7445: sub rndseed_CODE_64bit5 {
7446: my ($symb,$courseid,$domain,$username)=@_;
7447: my $code = &getCODE();
7448: my ($num1,$num2)=&digest("$symb,$courseid,$code");
7449: return "$num1:$num2";
7450: }
7451:
1.366 albertel 7452: sub setup_random_from_rndseed {
7453: my ($rndseed)=@_;
1.503 albertel 7454: if ($rndseed =~/([,:])/) {
7455: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 7456: &Math::Random::random_set_seed(abs($num1),abs($num2));
7457: } else {
7458: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 7459: }
1.36 albertel 7460: }
7461:
1.474 albertel 7462: sub latest_receipt_algorithm_id {
1.835 albertel 7463: return 'receipt3';
1.474 albertel 7464: }
7465:
1.480 www 7466: sub recunique {
7467: my $fucourseid=shift;
7468: my $unique;
1.835 albertel 7469: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
7470: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7471: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 7472: } else {
7473: $unique=$perlvar{'lonReceipt'};
7474: }
7475: return unpack("%32C*",$unique);
7476: }
7477:
7478: sub recprefix {
7479: my $fucourseid=shift;
7480: my $prefix;
1.835 albertel 7481: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
7482: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7483: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 7484: } else {
7485: $prefix=$perlvar{'lonHostID'};
7486: }
7487: return unpack("%32C*",$prefix);
7488: }
7489:
1.76 www 7490: sub ireceipt {
1.474 albertel 7491: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 7492:
7493: my $return =&recprefix($fucourseid).'-';
7494:
7495: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
7496: $env{'request.state'} eq 'construct') {
7497: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
7498: return $return;
7499: }
7500:
1.76 www 7501: my $cuname=unpack("%32C*",$funame);
7502: my $cudom=unpack("%32C*",$fudom);
7503: my $cucourseid=unpack("%32C*",$fucourseid);
7504: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 7505: my $cunique=&recunique($fucourseid);
1.474 albertel 7506: my $cpart=unpack("%32S*",$part);
1.835 albertel 7507: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
7508:
1.790 albertel 7509: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 7510:
7511: $return.= ($cunique%$cuname+
7512: $cunique%$cudom+
7513: $cusymb%$cuname+
7514: $cusymb%$cudom+
7515: $cucourseid%$cuname+
7516: $cucourseid%$cudom+
7517: $cpart%$cuname+
7518: $cpart%$cudom);
7519: } else {
7520: $return.= ($cunique%$cuname+
7521: $cunique%$cudom+
7522: $cusymb%$cuname+
7523: $cusymb%$cudom+
7524: $cucourseid%$cuname+
7525: $cucourseid%$cudom);
7526: }
7527: return $return;
1.76 www 7528: }
7529:
7530: sub receipt {
1.474 albertel 7531: my ($part)=@_;
1.790 albertel 7532: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 7533: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 7534: }
1.260 ng 7535:
1.790 albertel 7536: sub whichuser {
7537: my ($passedsymb)=@_;
7538: my ($symb,$courseid,$domain,$name,$publicuser);
7539: if (defined($env{'form.grade_symb'})) {
7540: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
7541: my $allowed=&allowed('vgr',$tmp_courseid);
7542: if (!$allowed &&
7543: exists($env{'request.course.sec'}) &&
7544: $env{'request.course.sec'} !~ /^\s*$/) {
7545: $allowed=&allowed('vgr',$tmp_courseid.
7546: '/'.$env{'request.course.sec'});
7547: }
7548: if ($allowed) {
7549: ($symb)=&get_env_multiple('form.grade_symb');
7550: $courseid=$tmp_courseid;
7551: ($domain)=&get_env_multiple('form.grade_domain');
7552: ($name)=&get_env_multiple('form.grade_username');
7553: return ($symb,$courseid,$domain,$name,$publicuser);
7554: }
7555: }
7556: if (!$passedsymb) {
7557: $symb=&symbread();
7558: } else {
7559: $symb=$passedsymb;
7560: }
7561: $courseid=$env{'request.course.id'};
7562: $domain=$env{'user.domain'};
7563: $name=$env{'user.name'};
7564: if ($name eq 'public' && $domain eq 'public') {
7565: if (!defined($env{'form.username'})) {
7566: $env{'form.username'}.=time.rand(10000000);
7567: }
7568: $name.=$env{'form.username'};
7569: }
7570: return ($symb,$courseid,$domain,$name,$publicuser);
7571:
7572: }
7573:
1.36 albertel 7574: # ------------------------------------------------------------ Serves up a file
1.472 albertel 7575: # returns either the contents of the file or
7576: # -1 if the file doesn't exist
1.481 raeburn 7577: #
7578: # if the target is a file that was uploaded via DOCS,
7579: # a check will be made to see if a current copy exists on the local server,
7580: # if it does this will be served, otherwise a copy will be retrieved from
7581: # the home server for the course and stored in /home/httpd/html/userfiles on
7582: # the local server.
1.472 albertel 7583:
1.36 albertel 7584: sub getfile {
1.538 albertel 7585: my ($file) = @_;
1.609 banghart 7586: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 7587: &repcopy($file);
7588: return &readfile($file);
7589: }
7590:
7591: sub repcopy_userfile {
7592: my ($file)=@_;
1.609 banghart 7593: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 7594: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 7595: my ($cdom,$cnum,$filename) =
1.811 albertel 7596: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 7597: my $uri="/uploaded/$cdom/$cnum/$filename";
7598: if (-e "$file") {
1.828 www 7599: # we already have a local copy, check it out
1.538 albertel 7600: my @fileinfo = stat($file);
1.828 www 7601: my $rtncode;
7602: my $info;
1.538 albertel 7603: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 7604: if ($lwpresp ne 'ok') {
1.828 www 7605: # there is no such file anymore, even though we had a local copy
1.482 albertel 7606: if ($rtncode eq '404') {
1.538 albertel 7607: unlink($file);
1.482 albertel 7608: }
7609: return -1;
7610: }
7611: if ($info < $fileinfo[9]) {
1.828 www 7612: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 7613: return 'ok';
1.828 www 7614: } else {
7615: # the file is outdated, get rid of it
7616: unlink($file);
1.482 albertel 7617: }
1.828 www 7618: }
7619: # one way or the other, at this point, we don't have the file
7620: # construct the correct path for the file
7621: my @parts = ($cdom,$cnum);
7622: if ($filename =~ m|^(.+)/[^/]+$|) {
7623: push @parts, split(/\//,$1);
7624: }
7625: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
7626: foreach my $part (@parts) {
7627: $path .= '/'.$part;
7628: if (!-e $path) {
7629: mkdir($path,0770);
1.482 albertel 7630: }
7631: }
1.828 www 7632: # now the path exists for sure
7633: # get a user agent
7634: my $ua=new LWP::UserAgent;
7635: my $transferfile=$file.'.in.transfer';
7636: # FIXME: this should flock
7637: if (-e $transferfile) { return 'ok'; }
7638: my $request;
7639: $uri=~s/^\///;
1.838 albertel 7640: $request=new HTTP::Request('GET','http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri);
1.828 www 7641: my $response=$ua->request($request,$transferfile);
7642: # did it work?
7643: if ($response->is_error()) {
7644: unlink($transferfile);
7645: &logthis("Userfile repcopy failed for $uri");
7646: return -1;
7647: }
7648: # worked, rename the transfer file
7649: rename($transferfile,$file);
1.607 raeburn 7650: return 'ok';
1.481 raeburn 7651: }
7652:
1.517 albertel 7653: sub tokenwrapper {
7654: my $uri=shift;
1.552 albertel 7655: $uri=~s|^http\://([^/]+)||;
7656: $uri=~s|^/||;
1.620 albertel 7657: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 7658: my $token=$1;
1.552 albertel 7659: my (undef,$udom,$uname,$file)=split('/',$uri,4);
7660: if ($udom && $uname && $file) {
7661: $file=~s|(\?\.*)*$||;
1.620 albertel 7662: &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
1.838 albertel 7663: return 'http://'.&hostname(&homeserver($uname,$udom)).'/'.$uri.
1.517 albertel 7664: (($uri=~/\?/)?'&':'?').'token='.$token.
7665: '&tokenissued='.$perlvar{'lonHostID'};
7666: } else {
7667: return '/adm/notfound.html';
7668: }
7669: }
7670:
1.828 www 7671: # call with reqtype HEAD: get last modification time
7672: # call with reqtype GET: get the file contents
7673: # Do not call this with reqtype GET for large files! It loads everything into memory
7674: #
1.481 raeburn 7675: sub getuploaded {
7676: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
7677: $uri=~s/^\///;
1.838 albertel 7678: $uri = 'http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri;
1.481 raeburn 7679: my $ua=new LWP::UserAgent;
7680: my $request=new HTTP::Request($reqtype,$uri);
7681: my $response=$ua->request($request);
7682: $$rtncode = $response->code;
1.482 albertel 7683: if (! $response->is_success()) {
7684: return 'failed';
7685: }
7686: if ($reqtype eq 'HEAD') {
1.486 www 7687: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 7688: } elsif ($reqtype eq 'GET') {
7689: $$info = $response->content;
1.472 albertel 7690: }
1.482 albertel 7691: return 'ok';
1.36 albertel 7692: }
7693:
1.481 raeburn 7694: sub readfile {
7695: my $file = shift;
7696: if ( (! -e $file ) || ($file eq '') ) { return -1; };
7697: my $fh;
7698: open($fh,"<$file");
7699: my $a='';
1.800 albertel 7700: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 7701: return $a;
7702: }
7703:
1.36 albertel 7704: sub filelocation {
1.590 banghart 7705: my ($dir,$file) = @_;
7706: my $location;
7707: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 7708:
7709: if ($file =~ m-^/adm/-) {
7710: $file=~s-^/adm/wrapper/-/-;
7711: $file=~s-^/adm/coursedocs/showdoc/-/-;
7712: }
1.882 albertel 7713:
1.590 banghart 7714: if ($file=~m:^/~:) { # is a contruction space reference
7715: $location = $file;
7716: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 7717: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 7718: # is a correct contruction space reference
7719: $location = $file;
1.609 banghart 7720: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 7721: my ($udom,$uname,$filename)=
1.811 albertel 7722: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 7723: my $home=&homeserver($uname,$udom);
7724: my $is_me=0;
7725: my @ids=¤t_machine_ids();
7726: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
7727: if ($is_me) {
1.740 www 7728: $location=&propath($udom,$uname).
1.590 banghart 7729: '/userfiles/'.$filename;
7730: } else {
7731: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
7732: $udom.'/'.$uname.'/'.$filename;
7733: }
1.882 albertel 7734: } elsif ($file =~ m-^/adm/-) {
7735: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 7736: } else {
7737: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
7738: $file=~s:^/res/:/:;
7739: if ( !( $file =~ m:^/:) ) {
7740: $location = $dir. '/'.$file;
7741: } else {
7742: $location = '/home/httpd/html/res'.$file;
7743: }
1.59 albertel 7744: }
1.590 banghart 7745: $location=~s://+:/:g; # remove duplicate /
7746: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
7747: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
7748: return $location;
1.46 www 7749: }
1.36 albertel 7750:
1.46 www 7751: sub hreflocation {
7752: my ($dir,$file)=@_;
1.460 albertel 7753: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
1.666 albertel 7754: $file=filelocation($dir,$file);
1.700 albertel 7755: } elsif ($file=~m-^/adm/-) {
7756: $file=~s-^/adm/wrapper/-/-;
7757: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 7758: }
7759: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
7760: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 7761: } elsif ($file=~m-/home/($match_username)/public_html/-) {
7762: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 7763: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 7764: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 7765: -/uploaded/$1/$2/-x;
1.46 www 7766: }
1.910.2.1 albertel 7767: if ($file=~ m{^/userfiles/}) {
7768: $file =~ s{^/userfiles/}{/uploaded/};
7769: }
1.462 albertel 7770: return $file;
1.465 albertel 7771: }
7772:
7773: sub current_machine_domains {
1.853 albertel 7774: return &machine_domains(&hostname($perlvar{'lonHostID'}));
7775: }
7776:
7777: sub machine_domains {
7778: my ($hostname) = @_;
1.465 albertel 7779: my @domains;
1.838 albertel 7780: my %hostname = &all_hostnames();
1.465 albertel 7781: while( my($id, $name) = each(%hostname)) {
1.467 matthew 7782: # &logthis("-$id-$name-$hostname-");
1.465 albertel 7783: if ($hostname eq $name) {
1.844 albertel 7784: push(@domains,&host_domain($id));
1.465 albertel 7785: }
7786: }
7787: return @domains;
7788: }
7789:
7790: sub current_machine_ids {
1.853 albertel 7791: return &machine_ids(&hostname($perlvar{'lonHostID'}));
7792: }
7793:
7794: sub machine_ids {
7795: my ($hostname) = @_;
7796: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 7797: my @ids;
1.888 albertel 7798: my %name_to_host = &all_names();
1.889 albertel 7799: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
7800: return @{ $name_to_host{$hostname} };
7801: }
7802: return;
1.31 www 7803: }
7804:
1.824 raeburn 7805: sub additional_machine_domains {
7806: my @domains;
7807: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
7808: while( my $line = <$fh>) {
7809: $line =~ s/\s//g;
7810: push(@domains,$line);
7811: }
7812: return @domains;
7813: }
7814:
7815: sub default_login_domain {
7816: my $domain = $perlvar{'lonDefDomain'};
7817: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
7818: foreach my $posdom (¤t_machine_domains(),
7819: &additional_machine_domains()) {
7820: if (lc($posdom) eq lc($testdomain)) {
7821: $domain=$posdom;
7822: last;
7823: }
7824: }
7825: return $domain;
7826: }
7827:
1.31 www 7828: # ------------------------------------------------------------- Declutters URLs
7829:
7830: sub declutter {
7831: my $thisfn=shift;
1.569 albertel 7832: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 7833: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 7834: $thisfn=~s/^\///;
1.697 albertel 7835: $thisfn=~s|^adm/wrapper/||;
7836: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 7837: $thisfn=~s/^res\///;
1.235 www 7838: $thisfn=~s/\?.+$//;
1.268 www 7839: return $thisfn;
7840: }
7841:
7842: # ------------------------------------------------------------- Clutter up URLs
7843:
7844: sub clutter {
7845: my $thisfn='/'.&declutter(shift);
1.887 albertel 7846: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 7847: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 7848: $thisfn='/res'.$thisfn;
7849: }
1.694 albertel 7850: if ($thisfn !~m|/adm|) {
1.695 albertel 7851: if ($thisfn =~ m|/ext/|) {
1.694 albertel 7852: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 7853: } else {
7854: my ($ext) = ($thisfn =~ /\.(\w+)$/);
7855: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 7856: if ($embstyle eq 'ssi'
7857: || ($embstyle eq 'hdn')
7858: || ($embstyle eq 'rat')
7859: || ($embstyle eq 'prv')
7860: || ($embstyle eq 'ign')) {
7861: #do nothing with these
7862: } elsif (($embstyle eq 'img')
1.695 albertel 7863: || ($embstyle eq 'emb')
7864: || ($embstyle eq 'wrp')) {
7865: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 7866: } elsif ($embstyle eq 'unk'
7867: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 7868: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 7869: } else {
1.718 www 7870: # &logthis("Got a blank emb style");
1.695 albertel 7871: }
1.694 albertel 7872: }
7873: }
1.31 www 7874: return $thisfn;
1.12 www 7875: }
7876:
1.787 albertel 7877: sub clutter_with_no_wrapper {
7878: my $uri = &clutter(shift);
7879: if ($uri =~ m-^/adm/-) {
7880: $uri =~ s-^/adm/wrapper/-/-;
7881: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
7882: }
7883: return $uri;
7884: }
7885:
1.557 albertel 7886: sub freeze_escape {
7887: my ($value)=@_;
7888: if (ref($value)) {
7889: $value=&nfreeze($value);
7890: return '__FROZEN__'.&escape($value);
7891: }
7892: return &escape($value);
7893: }
7894:
1.11 www 7895:
1.557 albertel 7896: sub thaw_unescape {
7897: my ($value)=@_;
7898: if ($value =~ /^__FROZEN__/) {
7899: substr($value,0,10,undef);
7900: $value=&unescape($value);
7901: return &thaw($value);
7902: }
7903: return &unescape($value);
7904: }
7905:
1.436 albertel 7906: sub correct_line_ends {
7907: my ($result)=@_;
7908: $$result =~s/\r\n/\n/mg;
7909: $$result =~s/\r/\n/mg;
1.415 albertel 7910: }
1.1 albertel 7911: # ================================================================ Main Program
7912:
1.184 www 7913: sub goodbye {
1.204 albertel 7914: &logthis("Starting Shut down");
1.443 albertel 7915: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 7916: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 7917: #converted
1.599 albertel 7918: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 7919: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
7920: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
7921: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 7922: #1.1 only
1.870 albertel 7923: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
7924: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
7925: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
7926: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
7927: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 7928: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
7929: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 7930: &flushcourselogs();
7931: &logthis("Shutting down");
7932: }
7933:
1.852 albertel 7934: sub get_dns {
1.869 albertel 7935: my ($url,$func,$ignore_cache) = @_;
7936: if (!$ignore_cache) {
7937: my ($content,$cached)=
7938: &Apache::lonnet::is_cached_new('dns',$url);
7939: if ($cached) {
7940: &$func($content);
7941: return;
7942: }
7943: }
7944:
7945: my %alldns;
1.852 albertel 7946: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
7947: foreach my $dns (<$config>) {
7948: next if ($dns !~ /^\^(\S*)/x);
1.869 albertel 7949: $alldns{$1} = 1;
7950: }
7951: while (%alldns) {
7952: my ($dns) = keys(%alldns);
7953: delete($alldns{$dns});
1.852 albertel 7954: my $ua=new LWP::UserAgent;
7955: my $request=new HTTP::Request('GET',"http://$dns$url");
7956: my $response=$ua->request($request);
7957: next if ($response->is_error());
7958: my @content = split("\n",$response->content);
1.869 albertel 7959: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 7960: &$func(\@content);
1.869 albertel 7961: return;
1.852 albertel 7962: }
7963: close($config);
1.871 albertel 7964: my $which = (split('/',$url))[3];
7965: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
7966: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 7967: my @content = <$config>;
7968: &$func(\@content);
7969: return;
1.852 albertel 7970: }
1.327 albertel 7971: # ------------------------------------------------------------ Read domain file
7972: {
1.852 albertel 7973: my $loaded;
1.846 albertel 7974: my %domain;
7975:
1.852 albertel 7976: sub parse_domain_tab {
7977: my ($lines) = @_;
7978: foreach my $line (@$lines) {
7979: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 7980:
1.846 albertel 7981: chomp($line);
1.852 albertel 7982: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 7983: my %this_domain;
7984: foreach my $field ('description', 'auth_def', 'auth_arg_def',
7985: 'lang_def', 'city', 'longi', 'lati',
7986: 'primary') {
7987: $this_domain{$field} = shift(@elements);
7988: }
7989: $domain{$name} = \%this_domain;
1.852 albertel 7990: }
7991: }
1.864 albertel 7992:
7993: sub reset_domain_info {
7994: undef($loaded);
7995: undef(%domain);
7996: }
7997:
1.852 albertel 7998: sub load_domain_tab {
1.869 albertel 7999: my ($ignore_cache) = @_;
8000: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 8001: my $fh;
8002: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
8003: my @lines = <$fh>;
8004: &parse_domain_tab(\@lines);
1.448 albertel 8005: }
1.852 albertel 8006: close($fh);
8007: $loaded = 1;
1.327 albertel 8008: }
1.846 albertel 8009:
8010: sub domain {
1.852 albertel 8011: &load_domain_tab() if (!$loaded);
8012:
1.846 albertel 8013: my ($name,$what) = @_;
8014: return if ( !exists($domain{$name}) );
8015:
8016: if (!$what) {
8017: return $domain{$name}{'description'};
8018: }
8019: return $domain{$name}{$what};
8020: }
1.327 albertel 8021: }
8022:
8023:
1.1 albertel 8024: # ------------------------------------------------------------- Read hosts file
8025: {
1.838 albertel 8026: my %hostname;
1.844 albertel 8027: my %hostdom;
1.845 albertel 8028: my %libserv;
1.852 albertel 8029: my $loaded;
1.888 albertel 8030: my %name_to_host;
1.852 albertel 8031:
8032: sub parse_hosts_tab {
8033: my ($file) = @_;
8034: foreach my $configline (@$file) {
8035: next if ($configline =~ /^(\#|\s*$ )/x);
8036: next if ($configline =~ /^\^/);
8037: chomp($configline);
8038: my ($id,$domain,$role,$name)=split(/:/,$configline);
8039: $name=~s/\s//g;
8040: if ($id && $domain && $role && $name) {
8041: $hostname{$id}=$name;
1.888 albertel 8042: push(@{$name_to_host{$name}}, $id);
1.852 albertel 8043: $hostdom{$id}=$domain;
8044: if ($role eq 'library') { $libserv{$id}=$name; }
8045: }
8046: }
8047: }
1.864 albertel 8048:
8049: sub reset_hosts_info {
1.897 albertel 8050: &purge_remembered();
1.864 albertel 8051: &reset_domain_info();
8052: &reset_hosts_ip_info();
1.892 albertel 8053: undef(%name_to_host);
1.864 albertel 8054: undef(%hostname);
8055: undef(%hostdom);
8056: undef(%libserv);
8057: undef($loaded);
8058: }
1.1 albertel 8059:
1.852 albertel 8060: sub load_hosts_tab {
1.869 albertel 8061: my ($ignore_cache) = @_;
8062: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 8063: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
8064: my @config = <$config>;
8065: &parse_hosts_tab(\@config);
8066: close($config);
8067: $loaded=1;
1.1 albertel 8068: }
1.852 albertel 8069:
1.838 albertel 8070: sub hostname {
1.852 albertel 8071: &load_hosts_tab() if (!$loaded);
8072:
1.838 albertel 8073: my ($lonid) = @_;
8074: return $hostname{$lonid};
8075: }
1.845 albertel 8076:
1.838 albertel 8077: sub all_hostnames {
1.852 albertel 8078: &load_hosts_tab() if (!$loaded);
8079:
1.838 albertel 8080: return %hostname;
8081: }
1.845 albertel 8082:
1.888 albertel 8083: sub all_names {
8084: &load_hosts_tab() if (!$loaded);
8085:
8086: return %name_to_host;
8087: }
8088:
1.845 albertel 8089: sub is_library {
1.852 albertel 8090: &load_hosts_tab() if (!$loaded);
8091:
1.845 albertel 8092: return exists($libserv{$_[0]});
8093: }
8094:
8095: sub all_library {
1.852 albertel 8096: &load_hosts_tab() if (!$loaded);
8097:
1.845 albertel 8098: return %libserv;
8099: }
8100:
1.841 albertel 8101: sub get_servers {
1.852 albertel 8102: &load_hosts_tab() if (!$loaded);
8103:
1.841 albertel 8104: my ($domain,$type) = @_;
8105: my %possible_hosts = ($type eq 'library') ? %libserv
8106: : %hostname;
8107: my %result;
1.842 albertel 8108: if (ref($domain) eq 'ARRAY') {
8109: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 8110: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 8111: $result{$host} = $hostname;
8112: }
8113: }
8114: } else {
8115: while ( my ($host,$hostname) = each(%possible_hosts)) {
8116: if ($hostdom{$host} eq $domain) {
8117: $result{$host} = $hostname;
8118: }
1.841 albertel 8119: }
8120: }
8121: return %result;
8122: }
1.845 albertel 8123:
1.844 albertel 8124: sub host_domain {
1.852 albertel 8125: &load_hosts_tab() if (!$loaded);
8126:
1.844 albertel 8127: my ($lonid) = @_;
8128: return $hostdom{$lonid};
8129: }
8130:
1.841 albertel 8131: sub all_domains {
1.852 albertel 8132: &load_hosts_tab() if (!$loaded);
8133:
1.841 albertel 8134: my %seen;
8135: my @uniq = grep(!$seen{$_}++, values(%hostdom));
8136: return @uniq;
8137: }
1.1 albertel 8138: }
8139:
1.847 albertel 8140: {
8141: my %iphost;
1.856 albertel 8142: my %name_to_ip;
8143: my %lonid_to_ip;
1.869 albertel 8144:
1.847 albertel 8145: sub get_hosts_from_ip {
8146: my ($ip) = @_;
8147: my %iphosts = &get_iphost();
8148: if (ref($iphosts{$ip})) {
8149: return @{$iphosts{$ip}};
8150: }
8151: return;
1.839 albertel 8152: }
1.864 albertel 8153:
8154: sub reset_hosts_ip_info {
8155: undef(%iphost);
8156: undef(%name_to_ip);
8157: undef(%lonid_to_ip);
8158: }
1.856 albertel 8159:
8160: sub get_host_ip {
8161: my ($lonid) = @_;
8162: if (exists($lonid_to_ip{$lonid})) {
8163: return $lonid_to_ip{$lonid};
8164: }
8165: my $name=&hostname($lonid);
8166: my $ip = gethostbyname($name);
8167: return if (!$ip || length($ip) ne 4);
8168: $ip=inet_ntoa($ip);
8169: $name_to_ip{$name} = $ip;
8170: $lonid_to_ip{$lonid} = $ip;
8171: return $ip;
8172: }
1.847 albertel 8173:
8174: sub get_iphost {
1.869 albertel 8175: my ($ignore_cache) = @_;
1.894 albertel 8176:
1.869 albertel 8177: if (!$ignore_cache) {
8178: if (%iphost) {
8179: return %iphost;
8180: }
8181: my ($ip_info,$cached)=
8182: &Apache::lonnet::is_cached_new('iphost','iphost');
8183: if ($cached) {
8184: %iphost = %{$ip_info->[0]};
8185: %name_to_ip = %{$ip_info->[1]};
8186: %lonid_to_ip = %{$ip_info->[2]};
8187: return %iphost;
8188: }
8189: }
1.894 albertel 8190:
8191: # get yesterday's info for fallback
8192: my %old_name_to_ip;
8193: my ($ip_info,$cached)=
8194: &Apache::lonnet::is_cached_new('iphost','iphost');
8195: if ($cached) {
8196: %old_name_to_ip = %{$ip_info->[1]};
8197: }
8198:
1.888 albertel 8199: my %name_to_host = &all_names();
8200: foreach my $name (keys(%name_to_host)) {
1.847 albertel 8201: my $ip;
8202: if (!exists($name_to_ip{$name})) {
8203: $ip = gethostbyname($name);
8204: if (!$ip || length($ip) ne 4) {
1.894 albertel 8205: if (defined($old_name_to_ip{$name})) {
8206: $ip = $old_name_to_ip{$name};
8207: &logthis("Can't find $name defaulting to old $ip");
8208: } else {
8209: &logthis("Name $name no IP found");
8210: next;
8211: }
8212: } else {
8213: $ip=inet_ntoa($ip);
1.847 albertel 8214: }
8215: $name_to_ip{$name} = $ip;
8216: } else {
8217: $ip = $name_to_ip{$name};
1.653 albertel 8218: }
1.888 albertel 8219: foreach my $id (@{ $name_to_host{$name} }) {
8220: $lonid_to_ip{$id} = $ip;
8221: }
8222: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 8223: }
1.869 albertel 8224: &Apache::lonnet::do_cache_new('iphost','iphost',
8225: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.894 albertel 8226: 48*60*60);
1.869 albertel 8227:
1.847 albertel 8228: return %iphost;
1.598 albertel 8229: }
8230: }
8231:
1.862 albertel 8232: BEGIN {
8233:
8234: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
8235: unless ($readit) {
8236: {
8237: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
8238: %perlvar = (%perlvar,%{$configvars});
8239: }
8240:
8241:
1.1 albertel 8242: # ------------------------------------------------------ Read spare server file
8243: {
1.448 albertel 8244: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 8245:
8246: while (my $configline=<$config>) {
8247: chomp($configline);
1.284 matthew 8248: if ($configline) {
1.784 albertel 8249: my ($host,$type) = split(':',$configline,2);
1.785 albertel 8250: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 8251: push(@{ $spareid{$type} }, $host);
1.1 albertel 8252: }
8253: }
1.448 albertel 8254: close($config);
1.1 albertel 8255: }
1.11 www 8256: # ------------------------------------------------------------ Read permissions
8257: {
1.448 albertel 8258: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 8259:
8260: while (my $configline=<$config>) {
1.448 albertel 8261: chomp($configline);
8262: if ($configline) {
8263: my ($role,$perm)=split(/ /,$configline);
8264: if ($perm ne '') { $pr{$role}=$perm; }
8265: }
1.11 www 8266: }
1.448 albertel 8267: close($config);
1.11 www 8268: }
8269:
8270: # -------------------------------------------- Read plain texts for permissions
8271: {
1.448 albertel 8272: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 8273:
8274: while (my $configline=<$config>) {
1.448 albertel 8275: chomp($configline);
8276: if ($configline) {
1.742 raeburn 8277: my ($short,@plain)=split(/:/,$configline);
8278: %{$prp{$short}} = ();
8279: if (@plain > 0) {
8280: $prp{$short}{'std'} = $plain[0];
8281: for (my $i=1; $i<@plain; $i++) {
8282: $prp{$short}{'alt'.$i} = $plain[$i];
8283: }
8284: }
1.448 albertel 8285: }
1.135 www 8286: }
1.448 albertel 8287: close($config);
1.135 www 8288: }
8289:
8290: # ---------------------------------------------------------- Read package table
8291: {
1.448 albertel 8292: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 8293:
8294: while (my $configline=<$config>) {
1.483 albertel 8295: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 8296: chomp($configline);
8297: my ($short,$plain)=split(/:/,$configline);
8298: my ($pack,$name)=split(/\&/,$short);
8299: if ($plain ne '') {
8300: $packagetab{$pack.'&'.$name.'&name'}=$name;
8301: $packagetab{$short}=$plain;
8302: }
1.11 www 8303: }
1.448 albertel 8304: close($config);
1.329 matthew 8305: }
8306:
8307: # ------------- set up temporary directory
8308: {
8309: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
8310:
1.11 www 8311: }
8312:
1.794 albertel 8313: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
8314: 'compress_threshold'=> 20_000,
8315: });
1.185 www 8316:
1.281 www 8317: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 8318: $dumpcount=0;
1.22 www 8319:
1.163 harris41 8320: &logtouch();
1.672 albertel 8321: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 8322: $readit=1;
1.564 albertel 8323: {
8324: use integer;
8325: my $test=(2**32)+1;
1.568 albertel 8326: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 8327: &logthis(" Detected 64bit platform ($_64bit)");
8328: }
1.195 www 8329: }
1.1 albertel 8330: }
1.179 www 8331:
1.1 albertel 8332: 1;
1.191 harris41 8333: __END__
8334:
1.243 albertel 8335: =pod
8336:
1.191 harris41 8337: =head1 NAME
8338:
1.243 albertel 8339: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 8340:
8341: =head1 SYNOPSIS
8342:
1.243 albertel 8343: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 8344:
8345: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
8346:
1.243 albertel 8347: Common parameters:
8348:
8349: =over 4
8350:
8351: =item *
8352:
8353: $uname : an internal username (if $cname expecting a course Id specifically)
8354:
8355: =item *
8356:
8357: $udom : a domain (if $cdom expecting a course's domain specifically)
8358:
8359: =item *
8360:
8361: $symb : a resource instance identifier
8362:
8363: =item *
8364:
8365: $namespace : the name of a .db file that contains the data needed or
8366: being set.
8367:
8368: =back
8369:
1.394 bowersj2 8370: =head1 OVERVIEW
1.191 harris41 8371:
1.394 bowersj2 8372: lonnet provides subroutines which interact with the
8373: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
8374: about classes, users, and resources.
1.243 albertel 8375:
8376: For many of these objects you can also use this to store data about
8377: them or modify them in various ways.
1.191 harris41 8378:
1.394 bowersj2 8379: =head2 Symbs
1.191 harris41 8380:
1.394 bowersj2 8381: To identify a specific instance of a resource, LON-CAPA uses symbols
8382: or "symbs"X<symb>. These identifiers are built from the URL of the
8383: map, the resource number of the resource in the map, and the URL of
8384: the resource itself. The latter is somewhat redundant, but might help
8385: if maps change.
8386:
8387: An example is
8388:
8389: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
8390:
8391: The respective map entry is
8392:
8393: <resource id="19" src="/res/msu/korte/tests/part12.problem"
8394: title="Problem 2">
8395: </resource>
8396:
8397: Symbs are used by the random number generator, as well as to store and
8398: restore data specific to a certain instance of for example a problem.
8399:
8400: =head2 Storing And Retrieving Data
8401:
8402: X<store()>X<cstore()>X<restore()>Three of the most important functions
8403: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
8404: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
8405: is is the non-critical message twin of cstore. These functions are for
8406: handlers to store a perl hash to a user's permanent data space in an
8407: easy manner, and to retrieve it again on another call. It is expected
8408: that a handler would use this once at the beginning to retrieve data,
8409: and then again once at the end to send only the new data back.
8410:
8411: The data is stored in the user's data directory on the user's
8412: homeserver under the ID of the course.
8413:
8414: The hash that is returned by restore will have all of the previous
8415: value for all of the elements of the hash.
8416:
8417: Example:
8418:
8419: #creating a hash
8420: my %hash;
8421: $hash{'foo'}='bar';
8422:
8423: #storing it
8424: &Apache::lonnet::cstore(\%hash);
8425:
8426: #changing a value
8427: $hash{'foo'}='notbar';
8428:
8429: #adding a new value
8430: $hash{'bar'}='foo';
8431: &Apache::lonnet::cstore(\%hash);
8432:
8433: #retrieving the hash
8434: my %history=&Apache::lonnet::restore();
8435:
8436: #print the hash
8437: foreach my $key (sort(keys(%history))) {
8438: print("\%history{$key} = $history{$key}");
8439: }
8440:
8441: Will print out:
1.191 harris41 8442:
1.394 bowersj2 8443: %history{1:foo} = bar
8444: %history{1:keys} = foo:timestamp
8445: %history{1:timestamp} = 990455579
8446: %history{2:bar} = foo
8447: %history{2:foo} = notbar
8448: %history{2:keys} = foo:bar:timestamp
8449: %history{2:timestamp} = 990455580
8450: %history{bar} = foo
8451: %history{foo} = notbar
8452: %history{timestamp} = 990455580
8453: %history{version} = 2
8454:
8455: Note that the special hash entries C<keys>, C<version> and
8456: C<timestamp> were added to the hash. C<version> will be equal to the
8457: total number of versions of the data that have been stored. The
8458: C<timestamp> attribute will be the UNIX time the hash was
8459: stored. C<keys> is available in every historical section to list which
8460: keys were added or changed at a specific historical revision of a
8461: hash.
8462:
8463: B<Warning>: do not store the hash that restore returns directly. This
8464: will cause a mess since it will restore the historical keys as if the
8465: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 8466:
1.394 bowersj2 8467: Calling convention:
1.191 harris41 8468:
1.394 bowersj2 8469: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
8470: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 8471:
1.394 bowersj2 8472: For more detailed information, see lonnet specific documentation.
1.191 harris41 8473:
1.394 bowersj2 8474: =head1 RETURN MESSAGES
1.191 harris41 8475:
1.394 bowersj2 8476: =over 4
1.191 harris41 8477:
1.394 bowersj2 8478: =item * B<con_lost>: unable to contact remote host
1.191 harris41 8479:
1.394 bowersj2 8480: =item * B<con_delayed>: unable to contact remote host, message will be delivered
8481: when the connection is brought back up
1.191 harris41 8482:
1.394 bowersj2 8483: =item * B<con_failed>: unable to contact remote host and unable to save message
8484: for later delivery
1.191 harris41 8485:
1.394 bowersj2 8486: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 8487:
1.394 bowersj2 8488: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 8489: that was requested
1.191 harris41 8490:
1.243 albertel 8491: =back
1.191 harris41 8492:
1.243 albertel 8493: =head1 PUBLIC SUBROUTINES
1.191 harris41 8494:
1.243 albertel 8495: =head2 Session Environment Functions
1.191 harris41 8496:
1.243 albertel 8497: =over 4
1.191 harris41 8498:
1.394 bowersj2 8499: =item *
8500: X<appenv()>
8501: B<appenv(%hash)>: the value of %hash is written to
8502: the user envirnoment file, and will be restored for each access this
1.620 albertel 8503: user makes during this session, also modifies the %env for the current
1.394 bowersj2 8504: process
1.191 harris41 8505:
8506: =item *
1.394 bowersj2 8507: X<delenv()>
8508: B<delenv($regexp)>: removes all items from the session
8509: environment file that matches the regular expression in $regexp. The
1.620 albertel 8510: values are also delted from the current processes %env.
1.191 harris41 8511:
1.795 albertel 8512: =item * get_env_multiple($name)
8513:
8514: gets $name from the %env hash, it seemlessly handles the cases where multiple
8515: values may be defined and end up as an array ref.
8516:
8517: returns an array of values
8518:
1.243 albertel 8519: =back
8520:
8521: =head2 User Information
1.191 harris41 8522:
1.243 albertel 8523: =over 4
1.191 harris41 8524:
8525: =item *
1.394 bowersj2 8526: X<queryauthenticate()>
8527: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 8528: authentication scheme
8529:
8530: =item *
1.394 bowersj2 8531: X<authenticate()>
8532: B<authenticate($uname,$upass,$udom)>: try to
8533: authenticate user from domain's lib servers (first use the current
8534: one). C<$upass> should be the users password.
1.191 harris41 8535:
8536: =item *
1.394 bowersj2 8537: X<homeserver()>
8538: B<homeserver($uname,$udom)>: find the server which has
8539: the user's directory and files (there must be only one), this caches
8540: the answer, and also caches if there is a borken connection.
1.191 harris41 8541:
8542: =item *
1.394 bowersj2 8543: X<idget()>
8544: B<idget($udom,@ids)>: find the usernames behind a list of IDs
8545: (IDs are a unique resource in a domain, there must be only 1 ID per
8546: username, and only 1 username per ID in a specific domain) (returns
8547: hash: id=>name,id=>name)
1.191 harris41 8548:
8549: =item *
1.394 bowersj2 8550: X<idrget()>
8551: B<idrget($udom,@unames)>: find the IDs behind a list of
8552: usernames (returns hash: name=>id,name=>id)
1.191 harris41 8553:
8554: =item *
1.394 bowersj2 8555: X<idput()>
8556: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 8557:
8558: =item *
1.394 bowersj2 8559: X<rolesinit()>
8560: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 8561:
8562: =item *
1.551 albertel 8563: X<getsection()>
8564: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 8565: course $cname, return section name/number or '' for "not in course"
8566: and '-1' for "no section"
8567:
8568: =item *
1.394 bowersj2 8569: X<userenvironment()>
8570: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 8571: passed in @what from the requested user's environment, returns a hash
8572:
1.858 raeburn 8573: =item *
8574: X<userlog_query()>
1.859 albertel 8575: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
8576: activity.log file. %filters defines filters applied when parsing the
8577: log file. These can be start or end timestamps, or the type of action
8578: - log to look for Login or Logout events, check for Checkin or
8579: Checkout, role for role selection. The response is in the form
8580: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
8581: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 8582:
1.243 albertel 8583: =back
8584:
8585: =head2 User Roles
8586:
8587: =over 4
8588:
8589: =item *
8590:
1.810 raeburn 8591: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 8592: F: full access
8593: U,I,K: authentication modes (cxx only)
8594: '': forbidden
8595: 1: user needs to choose course
8596: 2: browse allowed
1.766 albertel 8597: A: passphrase authentication needed
1.243 albertel 8598:
8599: =item *
8600:
8601: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
8602: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
8603: and course level
8604:
8605: =item *
8606:
8607: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
8608: explanation of a user role term
8609:
1.832 raeburn 8610: =item *
8611:
1.858 raeburn 8612: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms) :
8613: All arguments are optional. Returns a hash of a roles, either for
8614: co-author/assistant author roles for a user's Construction Space
1.906 albertel 8615: (default), or if $context is 'userroles', roles for the user himself,
1.858 raeburn 8616: In the hash, keys are set to colon-sparated $uname,$udom,and $role,
8617: and value is set to colon-separated start and end times for the role.
8618: If no username and domain are specified, will default to current
8619: user/domain. Types, roles, and roledoms are references to arrays,
8620: of role statuses (active, future or previous), roles
8621: (e.g., cc,in, st etc.) and domains of the roles which can be used
8622: to restrict the list of roles reported. If no array ref is
8623: provided for types, will default to return only active roles.
1.834 albertel 8624:
1.243 albertel 8625: =back
8626:
8627: =head2 User Modification
8628:
8629: =over 4
8630:
8631: =item *
8632:
8633: assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a
8634: user for the level given by URL. Optional start and end dates (leave empty
8635: string or zero for "no date")
1.191 harris41 8636:
8637: =item *
8638:
1.243 albertel 8639: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
8640: change a users, password, possible return values are: ok,
8641: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
8642: refused
1.191 harris41 8643:
8644: =item *
8645:
1.243 albertel 8646: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 8647:
8648: =item *
8649:
1.243 albertel 8650: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) :
8651: modify user
1.191 harris41 8652:
8653: =item *
8654:
1.286 matthew 8655: modifystudent
8656:
8657: modify a students enrollment and identification information.
8658: The course id is resolved based on the current users environment.
8659: This means the envoking user must be a course coordinator or otherwise
8660: associated with a course.
8661:
1.297 matthew 8662: This call is essentially a wrapper for lonnet::modifyuser and
8663: lonnet::modify_student_enrollment
1.286 matthew 8664:
8665: Inputs:
8666:
8667: =over 4
8668:
8669: =item B<$udom> Students loncapa domain
8670:
8671: =item B<$uname> Students loncapa login name
8672:
8673: =item B<$uid> Students id/student number
8674:
8675: =item B<$umode> Students authentication mode
8676:
8677: =item B<$upass> Students password
8678:
8679: =item B<$first> Students first name
8680:
8681: =item B<$middle> Students middle name
8682:
8683: =item B<$last> Students last name
8684:
8685: =item B<$gene> Students generation
8686:
8687: =item B<$usec> Students section in course
8688:
8689: =item B<$end> Unix time of the roles expiration
8690:
8691: =item B<$start> Unix time of the roles start date
8692:
8693: =item B<$forceid> If defined, allow $uid to be changed
8694:
8695: =item B<$desiredhome> server to use as home server for student
8696:
8697: =back
1.297 matthew 8698:
8699: =item *
8700:
8701: modify_student_enrollment
8702:
8703: Change a students enrollment status in a class. The environment variable
8704: 'role.request.course' must be defined for this function to proceed.
8705:
8706: Inputs:
8707:
8708: =over 4
8709:
8710: =item $udom, students domain
8711:
8712: =item $uname, students name
8713:
8714: =item $uid, students user id
8715:
8716: =item $first, students first name
8717:
8718: =item $middle
8719:
8720: =item $last
8721:
8722: =item $gene
8723:
8724: =item $usec
8725:
8726: =item $end
8727:
8728: =item $start
8729:
8730: =back
8731:
1.191 harris41 8732:
8733: =item *
8734:
1.243 albertel 8735: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
8736: custom role; give a custom role to a user for the level given by URL. Specify
8737: name and domain of role author, and role name
1.191 harris41 8738:
8739: =item *
8740:
1.243 albertel 8741: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 8742:
8743: =item *
8744:
1.243 albertel 8745: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
8746:
8747: =back
8748:
8749: =head2 Course Infomation
8750:
8751: =over 4
1.191 harris41 8752:
8753: =item *
8754:
1.631 albertel 8755: coursedescription($courseid) : returns a hash of information about the
8756: specified course id, including all environment settings for the
8757: course, the description of the course will be in the hash under the
8758: key 'description'
1.191 harris41 8759:
8760: =item *
8761:
1.624 albertel 8762: resdata($name,$domain,$type,@which) : request for current parameter
8763: setting for a specific $type, where $type is either 'course' or 'user',
8764: @what should be a list of parameters to ask about. This routine caches
8765: answers for 5 minutes.
1.243 albertel 8766:
1.877 foxr 8767: =item *
8768:
8769: get_courseresdata($courseid, $domain) : dump the entire course resource
8770: data base, returning a hash that is keyed by the resource name and has
8771: values that are the resource value. I believe that the timestamps and
8772: versions are also returned.
8773:
8774:
1.243 albertel 8775: =back
8776:
8777: =head2 Course Modification
8778:
8779: =over 4
1.191 harris41 8780:
8781: =item *
8782:
1.243 albertel 8783: writecoursepref($courseid,%prefs) : write preferences (environment
8784: database) for a course
1.191 harris41 8785:
8786: =item *
8787:
1.243 albertel 8788: createcourse($udom,$description,$url) : make/modify course
8789:
8790: =back
8791:
8792: =head2 Resource Subroutines
8793:
8794: =over 4
1.191 harris41 8795:
8796: =item *
8797:
1.243 albertel 8798: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 8799:
8800: =item *
8801:
1.243 albertel 8802: repcopy($filename) : subscribes to the requested file, and attempts to
8803: replicate from the owning library server, Might return
1.607 raeburn 8804: 'unavailable', 'not_found', 'forbidden', 'ok', or
8805: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 8806: resource. Expects the local filesystem pathname
8807: (/home/httpd/html/res/....)
8808:
8809: =back
8810:
8811: =head2 Resource Information
8812:
8813: =over 4
1.191 harris41 8814:
8815: =item *
8816:
1.243 albertel 8817: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
8818: a vairety of different possible values, $varname should be a request
8819: string, and the other parameters can be used to specify who and what
8820: one is asking about.
8821:
8822: Possible values for $varname are environment.lastname (or other item
8823: from the envirnment hash), user.name (or someother aspect about the
8824: user), resource.0.maxtries (or some other part and parameter of a
8825: resource)
1.204 albertel 8826:
8827: =item *
8828:
1.243 albertel 8829: directcondval($number) : get current value of a condition; reads from a state
8830: string
1.204 albertel 8831:
8832: =item *
8833:
1.243 albertel 8834: condval($condidx) : value of condition index based on state
1.204 albertel 8835:
8836: =item *
8837:
1.243 albertel 8838: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
8839: resource's metadata, $what should be either a specific key, or either
8840: 'keys' (to get a list of possible keys) or 'packages' to get a list of
8841: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
8842:
8843: this function automatically caches all requests
1.191 harris41 8844:
8845: =item *
8846:
1.243 albertel 8847: metadata_query($query,$custom,$customshow) : make a metadata query against the
8848: network of library servers; returns file handle of where SQL and regex results
8849: will be stored for query
1.191 harris41 8850:
8851: =item *
8852:
1.243 albertel 8853: symbread($filename) : return symbolic list entry (filename argument optional);
8854: returns the data handle
1.191 harris41 8855:
8856: =item *
8857:
1.243 albertel 8858: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 8859: a possible symb for the URL in $thisfn, and if is an encryypted
8860: resource that the user accessed using /enc/ returns a 1 on success, 0
8861: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 8862: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 8863:
1.191 harris41 8864:
8865: =item *
8866:
1.243 albertel 8867: symbclean($symb) : removes versions numbers from a symb, returns the
8868: cleaned symb
1.191 harris41 8869:
8870: =item *
8871:
1.243 albertel 8872: is_on_map($uri) : checks if the $uri is somewhere on the current
8873: course map, user must be in a course for it to work.
1.191 harris41 8874:
8875: =item *
8876:
1.243 albertel 8877: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 8878:
8879: =item *
8880:
1.243 albertel 8881: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
8882: a random seed, all arguments are optional, if they aren't sent it uses the
8883: environment to derive them. Note: if symb isn't sent and it can't get one
8884: from &symbread it will use the current time as its return value
1.191 harris41 8885:
8886: =item *
8887:
1.243 albertel 8888: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
8889: unfakeable, receipt
1.191 harris41 8890:
8891: =item *
8892:
1.620 albertel 8893: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 8894:
8895: =item *
8896:
1.243 albertel 8897: countacc($url) : count the number of accesses to a given URL
1.191 harris41 8898:
8899: =item *
8900:
1.243 albertel 8901: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 8902:
8903: =item *
8904:
1.243 albertel 8905: checkin($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 $tcrsid)
1.191 harris41 8906:
8907: =item *
8908:
1.243 albertel 8909: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 8910:
8911: =item *
8912:
1.243 albertel 8913: devalidate($symb) : devalidate temporary spreadsheet calculations,
8914: forcing spreadsheet to reevaluate the resource scores next time.
8915:
8916: =back
8917:
8918: =head2 Storing/Retreiving Data
8919:
8920: =over 4
1.191 harris41 8921:
8922: =item *
8923:
1.243 albertel 8924: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
8925: for this url; hashref needs to be given and should be a \%hashname; the
8926: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 8927: be derived from the env
1.191 harris41 8928:
8929: =item *
8930:
1.243 albertel 8931: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
8932: uses critical subroutine
1.191 harris41 8933:
8934: =item *
8935:
1.243 albertel 8936: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
8937: all args are optional
1.191 harris41 8938:
8939: =item *
8940:
1.717 albertel 8941: dumpstore($namespace,$udom,$uname,$regexp,$range) :
8942: dumps the complete (or key matching regexp) namespace into a hash
8943: ($udom, $uname, $regexp, $range are optional) for a namespace that is
8944: normally &store()ed into
8945:
8946: $range should be either an integer '100' (give me the first 100
8947: matching records)
8948: or be two integers sperated by a - with no spaces
8949: '30-50' (give me the 30th through the 50th matching
8950: records)
8951:
8952:
8953: =item *
8954:
8955: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
8956: replaces a &store() version of data with a replacement set of data
8957: for a particular resource in a namespace passed in the $storehash hash
8958: reference
8959:
8960: =item *
8961:
1.243 albertel 8962: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
8963: works very similar to store/cstore, but all data is stored in a
8964: temporary location and can be reset using tmpreset, $storehash should
8965: be a hash reference, returns nothing on success
1.191 harris41 8966:
8967: =item *
8968:
1.243 albertel 8969: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
8970: similar to restore, but all data is stored in a temporary location and
8971: can be reset using tmpreset. Returns a hash of values on success,
8972: error string otherwise.
1.191 harris41 8973:
8974: =item *
8975:
1.243 albertel 8976: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
8977: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 8978:
8979: =item *
8980:
1.243 albertel 8981: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
8982: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 8983:
8984: =item *
8985:
1.243 albertel 8986: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
8987: namesp ($udom and $uname are optional)
1.191 harris41 8988:
8989: =item *
8990:
1.702 albertel 8991: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 8992: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 8993: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 8994:
1.702 albertel 8995: $range should be either an integer '100' (give me the first 100
8996: matching records)
8997: or be two integers sperated by a - with no spaces
8998: '30-50' (give me the 30th through the 50th matching
8999: records)
1.449 matthew 9000: =item *
9001:
9002: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
9003: $store can be a scalar, an array reference, or if the amount to be
9004: incremented is > 1, a hash reference.
9005:
9006: ($udom and $uname are optional)
1.191 harris41 9007:
9008: =item *
9009:
1.243 albertel 9010: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
9011: ($udom and $uname are optional)
1.191 harris41 9012:
9013: =item *
9014:
1.243 albertel 9015: cput($namespace,$storehash,$udom,$uname) : critical put
9016: ($udom and $uname are optional)
1.191 harris41 9017:
9018: =item *
9019:
1.748 albertel 9020: newput($namespace,$storehash,$udom,$uname) :
9021:
9022: Attempts to store the items in the $storehash, but only if they don't
9023: currently exist, if this succeeds you can be certain that you have
9024: successfully created a new key value pair in the $namespace db.
9025:
9026:
9027: Args:
9028: $namespace: name of database to store values to
9029: $storehash: hashref to store to the db
9030: $udom: (optional) domain of user containing the db
9031: $uname: (optional) name of user caontaining the db
9032:
9033: Returns:
9034: 'ok' -> succeeded in storing all keys of $storehash
9035: 'key_exists: <key>' -> failed to anything out of $storehash, as at
9036: least <key> already existed in the db (other
9037: requested keys may also already exist)
9038: 'error: <msg>' -> unable to tie the DB or other erorr occured
9039: 'con_lost' -> unable to contact request server
9040: 'refused' -> action was not allowed by remote machine
9041:
9042:
9043: =item *
9044:
1.243 albertel 9045: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
9046: reference filled in from namesp (encrypts the return communication)
9047: ($udom and $uname are optional)
1.191 harris41 9048:
9049: =item *
9050:
1.243 albertel 9051: log($udom,$name,$home,$message) : write to permanent log for user; use
9052: critical subroutine
9053:
1.806 raeburn 9054: =item *
9055:
1.860 raeburn 9056: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
9057: array reference filled in from namespace found in domain level on either
9058: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 9059:
9060: =item *
9061:
1.860 raeburn 9062: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
9063: domain level either on specified domain server ($uhome) or primary domain
9064: server ($udom and $uhome are optional)
1.806 raeburn 9065:
1.243 albertel 9066: =back
9067:
9068: =head2 Network Status Functions
9069:
9070: =over 4
1.191 harris41 9071:
9072: =item *
9073:
9074: dirlist($uri) : return directory list based on URI
9075:
9076: =item *
9077:
1.243 albertel 9078: spareserver() : find server with least workload from spare.tab
9079:
9080: =back
9081:
9082: =head2 Apache Request
9083:
9084: =over 4
1.191 harris41 9085:
9086: =item *
9087:
1.243 albertel 9088: ssi($url,%hash) : server side include, does a complete request cycle on url to
9089: localhost, posts hash
9090:
9091: =back
9092:
9093: =head2 Data to String to Data
9094:
9095: =over 4
1.191 harris41 9096:
9097: =item *
9098:
1.243 albertel 9099: hash2str(%hash) : convert a hash into a string complete with escaping and '='
9100: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 9101:
9102: =item *
9103:
1.243 albertel 9104: hashref2str($hashref) : convert a hashref into a string complete with
9105: escaping and '=' and '&' separators, supports elements that are
9106: arrayrefs and hashrefs
1.191 harris41 9107:
9108: =item *
9109:
1.243 albertel 9110: arrayref2str($arrayref) : convert an arrayref into a string complete
9111: with escaping and '&' separators, supports elements that are arrayrefs
9112: and hashrefs
1.191 harris41 9113:
9114: =item *
9115:
1.243 albertel 9116: str2hash($string) : convert string to hash using unescaping and
9117: splitting on '=' and '&', supports elements that are arrayrefs and
9118: hashrefs
1.191 harris41 9119:
9120: =item *
9121:
1.243 albertel 9122: str2array($string) : convert string to hash using unescaping and
9123: splitting on '&', supports elements that are arrayrefs and hashrefs
9124:
9125: =back
9126:
9127: =head2 Logging Routines
9128:
9129: =over 4
9130:
9131: These routines allow one to make log messages in the lonnet.log and
9132: lonnet.perm logfiles.
1.191 harris41 9133:
9134: =item *
9135:
1.243 albertel 9136: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 9137:
9138: =item *
9139:
1.243 albertel 9140: logthis() : append message to the normal lonnet.log file, it gets
9141: preiodically rolled over and deleted.
1.191 harris41 9142:
9143: =item *
9144:
1.243 albertel 9145: logperm() : append a permanent message to lonnet.perm.log, this log
9146: file never gets deleted by any automated portion of the system, only
9147: messages of critical importance should go in here.
9148:
9149: =back
9150:
9151: =head2 General File Helper Routines
9152:
9153: =over 4
1.191 harris41 9154:
9155: =item *
9156:
1.481 raeburn 9157: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
9158: (a) files in /uploaded
9159: (i) If a local copy of the file exists -
9160: compares modification date of local copy with last-modified date for
9161: definitive version stored on home server for course. If local copy is
9162: stale, requests a new version from the home server and stores it.
9163: If the original has been removed from the home server, then local copy
9164: is unlinked.
9165: (ii) If local copy does not exist -
9166: requests the file from the home server and stores it.
9167:
9168: If $caller is 'uploadrep':
9169: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
9170: for request for files originally uploaded via DOCS.
9171: - returns 'ok' if fresh local copy now available, -1 otherwise.
9172:
9173: Otherwise:
9174: This indicates a call from the content generation phase of the request.
9175: - returns the entire contents of the file or -1.
9176:
9177: (b) files in /res
9178: - returns the entire contents of a file or -1;
9179: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 9180:
1.712 albertel 9181:
9182: =item *
9183:
9184: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
9185: reference
9186:
9187: returns either a stat() list of data about the file or an empty list
9188: if the file doesn't exist or couldn't find out about it (connection
9189: problems or user unknown)
9190:
1.191 harris41 9191: =item *
9192:
1.243 albertel 9193: filelocation($dir,$file) : returns file system location of a file
9194: based on URI; meant to be "fairly clean" absolute reference, $dir is a
9195: directory that relative $file lookups are to looked in ($dir of /a/dir
9196: and a file of ../bob will become /a/bob)
1.191 harris41 9197:
9198: =item *
9199:
9200: hreflocation($dir,$file) : returns file system location or a URL; same as
9201: filelocation except for hrefs
9202:
9203: =item *
9204:
9205: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
9206:
1.243 albertel 9207: =back
9208:
1.608 albertel 9209: =head2 Usererfile file routines (/uploaded*)
9210:
9211: =over 4
9212:
9213: =item *
9214:
9215: userfileupload(): main rotine for putting a file in a user or course's
9216: filespace, arguments are,
9217:
1.620 albertel 9218: formname - required - this is the name of the element in $env where the
1.608 albertel 9219: filename, and the contents of the file to create/modifed exist
1.620 albertel 9220: the filename is in $env{'form.'.$formname.'.filename'} and the
9221: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 9222: coursedoc - if true, store the file in the course of the active role
9223: of the current user
9224: subdir - required - subdirectory to put the file in under ../userfiles/
9225: if undefined, it will be placed in "unknown"
9226:
9227: (This routine calls clean_filename() to remove any dangerous
9228: characters from the filename, and then calls finuserfileupload() to
9229: complete the transaction)
9230:
9231: returns either the url of the uploaded file (/uploaded/....) if successful
9232: and /adm/notfound.html if unsuccessful
9233:
9234: =item *
9235:
9236: clean_filename(): routine for cleaing a filename up for storage in
9237: userfile space, argument is:
9238:
9239: filename - proposed filename
9240:
9241: returns: the new clean filename
9242:
9243: =item *
9244:
9245: finishuserfileupload(): routine that creaes and sends the file to
9246: userspace, probably shouldn't be called directly
9247:
9248: docuname: username or courseid of destination for the file
9249: docudom: domain of user/course of destination for the file
9250: formname: same as for userfileupload()
9251: fname: filename (inculding subdirectories) for the file
9252:
9253: returns either the url of the uploaded file (/uploaded/....) if successful
9254: and /adm/notfound.html if unsuccessful
9255:
9256: =item *
9257:
9258: renameuserfile(): renames an existing userfile to a new name
9259:
9260: Args:
9261: docuname: username or courseid of destination for the file
9262: docudom: domain of user/course of destination for the file
9263: old: current file name (including any subdirs under userfiles)
9264: new: desired file name (including any subdirs under userfiles)
9265:
9266: =item *
9267:
9268: mkdiruserfile(): creates a directory is a userfiles dir
9269:
9270: Args:
9271: docuname: username or courseid of destination for the file
9272: docudom: domain of user/course of destination for the file
9273: dir: dir to create (including any subdirs under userfiles)
9274:
9275: =item *
9276:
9277: removeuserfile(): removes a file that exists in userfiles
9278:
9279: Args:
9280: docuname: username or courseid of destination for the file
9281: docudom: domain of user/course of destination for the file
9282: fname: filname to delete (including any subdirs under userfiles)
9283:
9284: =item *
9285:
9286: removeuploadedurl(): convience function for removeuserfile()
9287:
9288: Args:
9289: url: a full /uploaded/... url to delete
9290:
1.747 albertel 9291: =item *
9292:
9293: get_portfile_permissions():
9294: Args:
9295: domain: domain of user or course contain the portfolio files
9296: user: name of user or num of course contain the portfolio files
9297: Returns:
9298: hashref of a dump of the proper file_permissions.db
9299:
9300:
9301: =item *
9302:
9303: get_access_controls():
9304:
9305: Args:
9306: current_permissions: the hash ref returned from get_portfile_permissions()
9307: group: (optional) the group you want the files associated with
9308: file: (optional) the file you want access info on
9309:
9310: Returns:
1.749 raeburn 9311: a hash (keys are file names) of hashes containing
9312: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
9313: values are XML containing access control settings (see below)
1.747 albertel 9314:
9315: Internal notes:
9316:
1.749 raeburn 9317: access controls are stored in file_permissions.db as key=value pairs.
9318: key -> path to file/file_name\0uniqueID:scope_end_start
9319: where scope -> public,guest,course,group,domains or users.
9320: end -> UNIX time for end of access (0 -> no end date)
9321: start -> UNIX time for start of access
9322:
9323: value -> XML description of access control
9324: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
9325: <start></start>
9326: <end></end>
9327:
9328: <password></password> for scope type = guest
9329:
9330: <domain></domain> for scope type = course or group
9331: <number></number>
9332: <roles id="">
9333: <role></role>
9334: <access></access>
9335: <section></section>
9336: <group></group>
9337: </roles>
9338:
9339: <dom></dom> for scope type = domains
9340:
9341: <users> for scope type = users
9342: <user>
9343: <uname></uname>
9344: <udom></udom>
9345: </user>
9346: </users>
9347: </scope>
9348:
9349: Access data is also aggregated for each file in an additional key=value pair:
9350: key -> path to file/file_name\0accesscontrol
9351: value -> reference to hash
9352: hash contains key = value pairs
9353: where key = uniqueID:scope_end_start
9354: value = UNIX time record was last updated
9355:
9356: Used to improve speed of look-ups of access controls for each file.
9357:
9358: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
9359:
9360: modify_access_controls():
9361:
9362: Modifies access controls for a portfolio file
9363: Args
9364: 1. file name
9365: 2. reference to hash of required changes,
9366: 3. domain
9367: 4. username
9368: where domain,username are the domain of the portfolio owner
9369: (either a user or a course)
9370:
9371: Returns:
9372: 1. result of additions or updates ('ok' or 'error', with error message).
9373: 2. result of deletions ('ok' or 'error', with error message).
9374: 3. reference to hash of any new or updated access controls.
9375: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
9376: key = integer (inbound ID)
9377: value = uniqueID
1.747 albertel 9378:
1.608 albertel 9379: =back
9380:
1.243 albertel 9381: =head2 HTTP Helper Routines
9382:
9383: =over 4
9384:
1.191 harris41 9385: =item *
9386:
9387: escape() : unpack non-word characters into CGI-compatible hex codes
9388:
9389: =item *
9390:
9391: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
9392:
1.243 albertel 9393: =back
9394:
9395: =head1 PRIVATE SUBROUTINES
9396:
9397: =head2 Underlying communication routines (Shouldn't call)
9398:
9399: =over 4
9400:
9401: =item *
9402:
9403: subreply() : tries to pass a message to lonc, returns con_lost if incapable
9404:
9405: =item *
9406:
9407: reply() : uses subreply to send a message to remote machine, logs all failures
9408:
9409: =item *
9410:
9411: critical() : passes a critical message to another server; if cannot
9412: get through then place message in connection buffer directory and
9413: returns con_delayed, if incapable of saving message, returns
9414: con_failed
9415:
9416: =item *
9417:
9418: reconlonc() : tries to reconnect lonc client processes.
9419:
9420: =back
9421:
9422: =head2 Resource Access Logging
9423:
9424: =over 4
9425:
9426: =item *
9427:
9428: flushcourselogs() : flush (save) buffer logs and access logs
9429:
9430: =item *
9431:
9432: courselog($what) : save message for course in hash
9433:
9434: =item *
9435:
9436: courseacclog($what) : save message for course using &courselog(). Perform
9437: special processing for specific resource types (problems, exams, quizzes, etc).
9438:
1.191 harris41 9439: =item *
9440:
9441: goodbye() : flush course logs and log shutting down; it is called in srm.conf
9442: as a PerlChildExitHandler
1.243 albertel 9443:
9444: =back
9445:
9446: =head2 Other
9447:
9448: =over 4
9449:
9450: =item *
9451:
9452: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 9453:
9454: =back
9455:
9456: =cut
1.877 foxr 9457:
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