Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.890.2.2
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
1.890.2.2! albertel 4: # $Id: lonnet.pm,v 1.890.2.1 2007/06/25 23:30:27 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 {
1.836 www 217: &logthis("Trying to reconnect lonc");
1.1 albertel 218: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
1.448 albertel 219: if (open(my $fh,"<$loncfile")) {
1.1 albertel 220: my $loncpid=<$fh>;
221: chomp($loncpid);
222: if (kill 0 => $loncpid) {
223: &logthis("lonc at pid $loncpid responding, sending USR1");
224: kill USR1 => $loncpid;
225: sleep 1;
1.836 www 226: } else {
1.12 www 227: &logthis(
1.672 albertel 228: "<font color=\"blue\">WARNING:".
1.12 www 229: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 230: }
231: } else {
1.836 www 232: &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
1.1 albertel 233: }
234: }
235:
236: # ------------------------------------------------------ Critical communication
1.12 www 237:
1.1 albertel 238: sub critical {
239: my ($cmd,$server)=@_;
1.838 albertel 240: unless (&hostname($server)) {
1.672 albertel 241: &logthis("<font color=\"blue\">WARNING:".
1.89 www 242: " Critical message to unknown server ($server)</font>");
243: return 'no_such_host';
244: }
1.1 albertel 245: my $answer=reply($cmd,$server);
246: if ($answer eq 'con_lost') {
247: &reconlonc("$perlvar{'lonSockDir'}/$server");
1.589 albertel 248: my $answer=reply($cmd,$server);
1.1 albertel 249: if ($answer eq 'con_lost') {
250: my $now=time;
251: my $middlename=$cmd;
1.5 www 252: $middlename=substr($middlename,0,16);
1.1 albertel 253: $middlename=~s/\W//g;
254: my $dfilename=
1.305 www 255: "$perlvar{'lonSockDir'}/delayed/$now.$dumpcount.$$.$middlename.$server";
256: $dumpcount++;
1.1 albertel 257: {
1.448 albertel 258: my $dfh;
259: if (open($dfh,">$dfilename")) {
260: print $dfh "$cmd\n";
261: close($dfh);
262: }
1.1 albertel 263: }
264: sleep 2;
265: my $wcmd='';
266: {
1.448 albertel 267: my $dfh;
268: if (open($dfh,"<$dfilename")) {
269: $wcmd=<$dfh>;
270: close($dfh);
271: }
1.1 albertel 272: }
273: chomp($wcmd);
1.7 www 274: if ($wcmd eq $cmd) {
1.672 albertel 275: &logthis("<font color=\"blue\">WARNING: ".
1.12 www 276: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 277: &logperm("D:$server:$cmd");
278: return 'con_delayed';
279: } else {
1.672 albertel 280: &logthis("<font color=\"red\">CRITICAL:"
1.12 www 281: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 282: &logperm("F:$server:$cmd");
283: return 'con_failed';
284: }
285: }
286: }
287: return $answer;
1.405 albertel 288: }
289:
1.755 albertel 290: # ------------------------------------------- check if return value is an error
291:
292: sub error {
293: my ($result) = @_;
1.756 albertel 294: if ($result =~ /^(con_lost|no_such_host|error: (\d+) (.*))/) {
1.755 albertel 295: if ($2 == 2) { return undef; }
296: return $1;
297: }
298: return undef;
299: }
300:
1.783 albertel 301: sub convert_and_load_session_env {
302: my ($lonidsdir,$handle)=@_;
303: my @profile;
304: {
305: open(my $idf,"$lonidsdir/$handle.id");
306: flock($idf,LOCK_SH);
307: @profile=<$idf>;
308: close($idf);
309: }
310: my %temp_env;
311: foreach my $line (@profile) {
1.786 albertel 312: if ($line !~ m/=/) {
313: return 0;
314: }
1.783 albertel 315: chomp($line);
316: my ($envname,$envvalue)=split(/=/,$line,2);
317: $temp_env{&unescape($envname)} = &unescape($envvalue);
318: }
319: unlink("$lonidsdir/$handle.id");
320: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_WRCREAT(),
321: 0640)) {
322: %disk_env = %temp_env;
323: @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
324: untie(%disk_env);
325: }
1.786 albertel 326: return 1;
1.783 albertel 327: }
328:
1.374 www 329: # ------------------------------------------- Transfer profile into environment
1.780 albertel 330: my $env_loaded;
331: sub transfer_profile_to_env {
1.788 albertel 332: my ($lonidsdir,$handle,$force_transfer) = @_;
333: if (!$force_transfer && $env_loaded) { return; }
1.374 www 334:
1.720 albertel 335: if (!defined($lonidsdir)) {
336: $lonidsdir = $perlvar{'lonIDsDir'};
337: }
338: if (!defined($handle)) {
339: ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
340: }
341:
1.786 albertel 342: my $convert;
343: {
344: open(my $idf,"$lonidsdir/$handle.id");
345: flock($idf,LOCK_SH);
346: if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
347: &GDBM_READER(),0640)) {
348: @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
349: untie(%disk_env);
350: } else {
351: $convert = 1;
352: }
353: }
354: if ($convert) {
355: if (!&convert_and_load_session_env($lonidsdir,$handle)) {
356: &logthis("Failed to load session, or convert session.");
357: }
1.374 www 358: }
1.783 albertel 359:
1.786 albertel 360: my %remove;
1.783 albertel 361: while ( my $envname = each(%env) ) {
1.433 matthew 362: if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
363: if ($time < time-300) {
1.783 albertel 364: $remove{$key}++;
1.433 matthew 365: }
366: }
367: }
1.783 albertel 368:
1.619 albertel 369: $env{'user.environment'} = "$lonidsdir/$handle.id";
1.780 albertel 370: $env_loaded=1;
1.783 albertel 371: foreach my $expired_key (keys(%remove)) {
1.433 matthew 372: &delenv($expired_key);
1.374 www 373: }
1.1 albertel 374: }
375:
1.830 albertel 376: sub timed_flock {
377: my ($file,$lock_type) = @_;
378: my $failed=0;
379: eval {
380: local $SIG{__DIE__}='DEFAULT';
381: local $SIG{ALRM}=sub {
382: $failed=1;
383: die("failed lock");
384: };
385: alarm(13);
386: flock($file,$lock_type);
387: alarm(0);
388: };
389: if ($failed) {
390: return undef;
391: } else {
392: return 1;
393: }
394: }
395:
1.5 www 396: # ---------------------------------------------------------- Append Environment
397:
398: sub appenv {
1.6 www 399: my %newenv=@_;
1.692 albertel 400: foreach my $key (keys(%newenv)) {
401: if (($newenv{$key}=~/^user\.role/) || ($newenv{$key}=~/^user\.priv/)) {
1.672 albertel 402: &logthis("<font color=\"blue\">WARNING: ".
1.692 albertel 403: "Attempt to modify environment ".$key." to ".$newenv{$key}
1.151 www 404: .'</font>');
1.692 albertel 405: delete($newenv{$key});
1.35 www 406: } else {
1.692 albertel 407: $env{$key}=$newenv{$key};
1.35 www 408: }
1.191 harris41 409: }
1.830 albertel 410: open(my $env_file,$env{'user.environment'});
411: if (&timed_flock($env_file,LOCK_EX)
412: &&
413: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
414: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 415: while (my ($key,$value) = each(%newenv)) {
416: $disk_env{$key} = $value;
1.448 albertel 417: }
1.783 albertel 418: untie(%disk_env);
1.56 www 419: }
420: return 'ok';
421: }
422: # ----------------------------------------------------- Delete from Environment
423:
424: sub delenv {
425: my $delthis=shift;
426: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
1.672 albertel 427: &logthis("<font color=\"blue\">WARNING: ".
1.56 www 428: "Attempt to delete from environment ".$delthis);
429: return 'error';
430: }
1.830 albertel 431: open(my $env_file,$env{'user.environment'});
432: if (&timed_flock($env_file,LOCK_EX)
433: &&
434: tie(my %disk_env,'GDBM_File',$env{'user.environment'},
435: (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
1.783 albertel 436: foreach my $key (keys(%disk_env)) {
437: if ($key=~/^$delthis/) {
1.619 albertel 438: delete($env{$key});
1.783 albertel 439: delete($disk_env{$key});
1.473 matthew 440: }
1.448 albertel 441: }
1.783 albertel 442: untie(%disk_env);
1.5 www 443: }
444: return 'ok';
1.369 albertel 445: }
446:
1.790 albertel 447: sub get_env_multiple {
448: my ($name) = @_;
449: my @values;
450: if (defined($env{$name})) {
451: # exists is it an array
452: if (ref($env{$name})) {
453: @values=@{ $env{$name} };
454: } else {
455: $values[0]=$env{$name};
456: }
457: }
458: return(@values);
459: }
460:
1.369 albertel 461: # ------------------------------------------ Find out current server userload
462: # there is a copy in lond
463: sub userload {
464: my $numusers=0;
465: {
466: opendir(LONIDS,$perlvar{'lonIDsDir'});
467: my $filename;
468: my $curtime=time;
469: while ($filename=readdir(LONIDS)) {
470: if ($filename eq '.' || $filename eq '..') {next;}
1.404 albertel 471: my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
1.437 albertel 472: if ($curtime-$mtime < 1800) { $numusers++; }
1.369 albertel 473: }
474: closedir(LONIDS);
475: }
476: my $userloadpercent=0;
477: my $maxuserload=$perlvar{'lonUserLoadLim'};
478: if ($maxuserload) {
1.371 albertel 479: $userloadpercent=100*$numusers/$maxuserload;
1.369 albertel 480: }
1.372 albertel 481: $userloadpercent=sprintf("%.2f",$userloadpercent);
1.369 albertel 482: return $userloadpercent;
1.283 www 483: }
484:
485: # ------------------------------------------ Fight off request when overloaded
486:
487: sub overloaderror {
488: my ($r,$checkserver)=@_;
489: unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
490: my $loadavg;
491: if ($checkserver eq $perlvar{'lonHostID'}) {
1.448 albertel 492: open(my $loadfile,'/proc/loadavg');
1.283 www 493: $loadavg=<$loadfile>;
494: $loadavg =~ s/\s.*//g;
1.285 matthew 495: $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
1.448 albertel 496: close($loadfile);
1.283 www 497: } else {
498: $loadavg=&reply('load',$checkserver);
499: }
1.285 matthew 500: my $overload=$loadavg-100;
1.283 www 501: if ($overload>0) {
1.285 matthew 502: $r->err_headers_out->{'Retry-After'}=$overload;
1.283 www 503: $r->log_error('Overload of '.$overload.' on '.$checkserver);
1.554 www 504: return 413;
1.283 www 505: }
506: return '';
1.5 www 507: }
1.1 albertel 508:
509: # ------------------------------ Find server with least workload from spare.tab
1.11 www 510:
1.1 albertel 511: sub spareserver {
1.670 albertel 512: my ($loadpercent,$userloadpercent,$want_server_name) = @_;
1.784 albertel 513: my $spare_server;
1.370 albertel 514: if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
1.784 albertel 515: my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
516: : $userloadpercent;
517:
518: foreach my $try_server (@{ $spareid{'primary'} }) {
519: ($spare_server, $lowest_load) =
520: &compare_server_load($try_server, $spare_server, $lowest_load);
521: }
522:
523: my $found_server = ($spare_server ne '' && $lowest_load < 100);
524:
525: if (!$found_server) {
526: foreach my $try_server (@{ $spareid{'default'} }) {
527: ($spare_server, $lowest_load) =
528: &compare_server_load($try_server, $spare_server, $lowest_load);
529: }
530: }
531:
532: if (!$want_server_name) {
1.838 albertel 533: $spare_server="http://".&hostname($spare_server);
1.784 albertel 534: }
535: return $spare_server;
536: }
537:
538: sub compare_server_load {
539: my ($try_server, $spare_server, $lowest_load) = @_;
540:
541: my $loadans = &reply('load', $try_server);
542: my $userloadans = &reply('userload',$try_server);
543:
544: if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
545: next; #didn't get a number from the server
546: }
547:
548: my $load;
549: if ($loadans =~ /\d/) {
550: if ($userloadans =~ /\d/) {
551: #both are numbers, pick the bigger one
552: $load = ($loadans > $userloadans) ? $loadans
553: : $userloadans;
1.411 albertel 554: } else {
1.784 albertel 555: $load = $loadans;
1.411 albertel 556: }
1.784 albertel 557: } else {
558: $load = $userloadans;
559: }
560:
561: if (($load =~ /\d/) && ($load < $lowest_load)) {
562: $spare_server = $try_server;
563: $lowest_load = $load;
1.370 albertel 564: }
1.784 albertel 565: return ($spare_server,$lowest_load);
1.202 matthew 566: }
567: # --------------------------------------------- Try to change a user's password
568:
569: sub changepass {
1.799 raeburn 570: my ($uname,$udom,$currentpass,$newpass,$server,$context)=@_;
1.202 matthew 571: $currentpass = &escape($currentpass);
572: $newpass = &escape($newpass);
1.799 raeburn 573: my $answer = reply("encrypt:passwd:$udom:$uname:$currentpass:$newpass:$context",
1.202 matthew 574: $server);
575: if (! $answer) {
576: &logthis("No reply on password change request to $server ".
577: "by $uname in domain $udom.");
578: } elsif ($answer =~ "^ok") {
579: &logthis("$uname in $udom successfully changed their password ".
580: "on $server.");
581: } elsif ($answer =~ "^pwchange_failure") {
582: &logthis("$uname in $udom was unable to change their password ".
583: "on $server. The action was blocked by either lcpasswd ".
584: "or pwchange");
585: } elsif ($answer =~ "^non_authorized") {
586: &logthis("$uname in $udom did not get their password correct when ".
587: "attempting to change it on $server.");
588: } elsif ($answer =~ "^auth_mode_error") {
589: &logthis("$uname in $udom attempted to change their password despite ".
590: "not being locally or internally authenticated on $server.");
591: } elsif ($answer =~ "^unknown_user") {
592: &logthis("$uname in $udom attempted to change their password ".
593: "on $server but were unable to because $server is not ".
594: "their home server.");
595: } elsif ($answer =~ "^refused") {
596: &logthis("$server refused to change $uname in $udom password because ".
597: "it was sent an unencrypted request to change the password.");
598: }
599: return $answer;
1.1 albertel 600: }
601:
1.169 harris41 602: # ----------------------- Try to determine user's current authentication scheme
603:
604: sub queryauthenticate {
605: my ($uname,$udom)=@_;
1.456 albertel 606: my $uhome=&homeserver($uname,$udom);
607: if (!$uhome) {
608: &logthis("User $uname at $udom is unknown when looking for authentication mechanism");
609: return 'no_host';
610: }
611: my $answer=reply("encrypt:currentauth:$udom:$uname",$uhome);
612: if ($answer =~ /^(unknown_user|refused|con_lost)/) {
613: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.169 harris41 614: }
1.456 albertel 615: return $answer;
1.169 harris41 616: }
617:
1.1 albertel 618: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 619:
1.1 albertel 620: sub authenticate {
621: my ($uname,$upass,$udom)=@_;
1.807 albertel 622: $upass=&escape($upass);
623: $uname= &LONCAPA::clean_username($uname);
1.836 www 624: my $uhome=&homeserver($uname,$udom,1);
625: if ((!$uhome) || ($uhome eq 'no_host')) {
626: # Maybe the machine was offline and only re-appeared again recently?
627: &reconlonc();
628: # One more
629: my $uhome=&homeserver($uname,$udom,1);
630: if ((!$uhome) || ($uhome eq 'no_host')) {
631: &logthis("User $uname at $udom is unknown in authenticate");
632: }
1.471 albertel 633: return 'no_host';
1.1 albertel 634: }
1.471 albertel 635: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);
636: if ($answer eq 'authorized') {
637: &logthis("User $uname at $udom authorized by $uhome");
638: return $uhome;
639: }
640: if ($answer eq 'non_authorized') {
641: &logthis("User $uname at $udom rejected by $uhome");
642: return 'no_host';
1.9 www 643: }
1.471 albertel 644: &logthis("User $uname at $udom threw error $answer when checking authentication mechanism");
1.1 albertel 645: return 'no_host';
646: }
647:
648: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 649:
1.599 albertel 650: my %homecache;
1.1 albertel 651: sub homeserver {
1.230 stredwic 652: my ($uname,$udom,$ignoreBadCache)=@_;
1.1 albertel 653: my $index="$uname:$udom";
1.426 albertel 654:
1.599 albertel 655: if (exists($homecache{$index})) { return $homecache{$index}; }
1.841 albertel 656:
657: my %servers = &get_servers($udom,'library');
658: foreach my $tryserver (keys(%servers)) {
1.230 stredwic 659: next if ($ignoreBadCache ne 'true' &&
1.231 stredwic 660: exists($badServerCache{$tryserver}));
1.841 albertel 661:
662: my $answer=reply("home:$udom:$uname",$tryserver);
663: if ($answer eq 'found') {
664: delete($badServerCache{$tryserver});
665: return $homecache{$index}=$tryserver;
666: } elsif ($answer eq 'no_host') {
667: $badServerCache{$tryserver}=1;
668: }
1.1 albertel 669: }
670: return 'no_host';
1.70 www 671: }
672:
673: # ------------------------------------- Find the usernames behind a list of IDs
674:
675: sub idget {
676: my ($udom,@ids)=@_;
677: my %returnhash=();
678:
1.841 albertel 679: my %servers = &get_servers($udom,'library');
680: foreach my $tryserver (keys(%servers)) {
681: my $idlist=join('&',@ids);
682: $idlist=~tr/A-Z/a-z/;
683: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
684: my @answer=();
685: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
686: @answer=split(/\&/,$reply);
687: } ;
688: my $i;
689: for ($i=0;$i<=$#ids;$i++) {
690: if ($answer[$i]) {
691: $returnhash{$ids[$i]}=$answer[$i];
692: }
693: }
694: }
1.70 www 695: return %returnhash;
696: }
697:
698: # ------------------------------------- Find the IDs behind a list of usernames
699:
700: sub idrget {
701: my ($udom,@unames)=@_;
702: my %returnhash=();
1.800 albertel 703: foreach my $uname (@unames) {
704: $returnhash{$uname}=(&userenvironment($udom,$uname,'id'))[1];
1.191 harris41 705: }
1.70 www 706: return %returnhash;
707: }
708:
709: # ------------------------------- Store away a list of names and associated IDs
710:
711: sub idput {
712: my ($udom,%ids)=@_;
713: my %servers=();
1.800 albertel 714: foreach my $uname (keys(%ids)) {
715: &cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
716: my $uhom=&homeserver($uname,$udom);
1.70 www 717: if ($uhom ne 'no_host') {
1.800 albertel 718: my $id=&escape($ids{$uname});
1.70 www 719: $id=~tr/A-Z/a-z/;
1.800 albertel 720: my $esc_unam=&escape($uname);
1.70 www 721: if ($servers{$uhom}) {
1.800 albertel 722: $servers{$uhom}.='&'.$id.'='.$esc_unam;
1.70 www 723: } else {
1.800 albertel 724: $servers{$uhom}=$id.'='.$esc_unam;
1.70 www 725: }
726: }
1.191 harris41 727: }
1.800 albertel 728: foreach my $server (keys(%servers)) {
729: &critical('idput:'.$udom.':'.$servers{$server},$server);
1.191 harris41 730: }
1.344 www 731: }
732:
1.806 raeburn 733: # ------------------------------------------- get items from domain db files
734:
735: sub get_dom {
1.860 raeburn 736: my ($namespace,$storearr,$udom,$uhome)=@_;
1.806 raeburn 737: my $items='';
738: foreach my $item (@$storearr) {
739: $items.=&escape($item).'&';
740: }
741: $items=~s/\&$//;
1.860 raeburn 742: if (!$udom) {
743: $udom=$env{'user.domain'};
744: if (defined(&domain($udom,'primary'))) {
745: $uhome=&domain($udom,'primary');
746: } else {
1.874 albertel 747: undef($uhome);
1.860 raeburn 748: }
749: } else {
750: if (!$uhome) {
751: if (defined(&domain($udom,'primary'))) {
752: $uhome=&domain($udom,'primary');
753: }
754: }
755: }
756: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 757: my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
1.866 raeburn 758: my %returnhash;
1.875 albertel 759: if ($rep eq '' || $rep =~ /^error: 2 /) {
1.866 raeburn 760: return %returnhash;
761: }
1.806 raeburn 762: my @pairs=split(/\&/,$rep);
763: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
764: return @pairs;
765: }
766: my $i=0;
767: foreach my $item (@$storearr) {
768: $returnhash{$item}=&thaw_unescape($pairs[$i]);
769: $i++;
770: }
771: return %returnhash;
772: } else {
1.880 banghart 773: &logthis("get_dom failed - no homeserver and/or domain ($udom) ($uhome)");
1.806 raeburn 774: }
775: }
776:
777: # -------------------------------------------- put items in domain db files
778:
779: sub put_dom {
1.860 raeburn 780: my ($namespace,$storehash,$udom,$uhome)=@_;
781: if (!$udom) {
782: $udom=$env{'user.domain'};
783: if (defined(&domain($udom,'primary'))) {
784: $uhome=&domain($udom,'primary');
785: } else {
1.874 albertel 786: undef($uhome);
1.860 raeburn 787: }
788: } else {
789: if (!$uhome) {
790: if (defined(&domain($udom,'primary'))) {
791: $uhome=&domain($udom,'primary');
792: }
793: }
794: }
795: if ($udom && $uhome && ($uhome ne 'no_host')) {
1.806 raeburn 796: my $items='';
797: foreach my $item (keys(%$storehash)) {
798: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
799: }
800: $items=~s/\&$//;
801: return &reply("putdom:$udom:$namespace:$items",$uhome);
802: } else {
1.860 raeburn 803: &logthis("put_dom failed - no homeserver and/or domain");
1.806 raeburn 804: }
805: }
806:
1.837 raeburn 807: sub retrieve_inst_usertypes {
808: my ($udom) = @_;
809: my (%returnhash,@order);
1.846 albertel 810: if (defined(&domain($udom,'primary'))) {
811: my $uhome=&domain($udom,'primary');
1.837 raeburn 812: my $rep=&reply("inst_usertypes:$udom",$uhome);
813: my ($hashitems,$orderitems) = split(/:/,$rep);
814: my @pairs=split(/\&/,$hashitems);
815: foreach my $item (@pairs) {
816: my ($key,$value)=split(/=/,$item,2);
817: $key = &unescape($key);
818: next if ($key =~ /^error: 2 /);
819: $returnhash{$key}=&thaw_unescape($value);
820: }
821: my @esc_order = split(/\&/,$orderitems);
822: foreach my $item (@esc_order) {
823: push(@order,&unescape($item));
824: }
825: } else {
826: &logthis("get_dom failed - no primary domain server for $udom");
827: }
828: return (\%returnhash,\@order);
829: }
830:
1.868 raeburn 831: sub is_domainimage {
832: my ($url) = @_;
833: if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img|logo|domlogo)/+-) {
834: if (&domain($1) ne '') {
835: return '1';
836: }
837: }
838: return;
839: }
840:
1.344 www 841: # --------------------------------------------------- Assign a key to a student
842:
843: sub assign_access_key {
1.364 www 844: #
845: # a valid key looks like uname:udom#comments
846: # comments are being appended
847: #
1.498 www 848: my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
849: $kdom=
1.620 albertel 850: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($kdom));
1.498 www 851: $knum=
1.620 albertel 852: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($knum));
1.344 www 853: $cdom=
1.620 albertel 854: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 855: $cnum=
1.620 albertel 856: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
857: $udom=$env{'user.name'} unless (defined($udom));
858: $uname=$env{'user.domain'} unless (defined($uname));
1.498 www 859: my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
1.364 www 860: if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
1.479 albertel 861: ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {
1.364 www 862: # assigned to this person
863: # - this should not happen,
1.345 www 864: # unless something went wrong
865: # the first time around
866: # ready to assign
1.364 www 867: $logentry=$1.'; '.$logentry;
1.496 www 868: if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
1.498 www 869: $kdom,$knum) eq 'ok') {
1.345 www 870: # key now belongs to user
1.346 www 871: my $envkey='key.'.$cdom.'_'.$cnum;
1.345 www 872: if (&put('environment',{$envkey => $ckey}) eq 'ok') {
873: &appenv('environment.'.$envkey => $ckey);
874: return 'ok';
875: } else {
876: return
877: 'error: Count not permanently assign key, will need to be re-entered later.';
878: }
879: } else {
880: return 'error: Could not assign key, try again later.';
881: }
1.364 www 882: } elsif (!$existing{$ckey}) {
1.345 www 883: # the key does not exist
884: return 'error: The key does not exist';
885: } else {
886: # the key is somebody else's
887: return 'error: The key is already in use';
888: }
1.344 www 889: }
890:
1.364 www 891: # ------------------------------------------ put an additional comment on a key
892:
893: sub comment_access_key {
894: #
895: # a valid key looks like uname:udom#comments
896: # comments are being appended
897: #
898: my ($ckey,$cdom,$cnum,$logentry)=@_;
899: $cdom=
1.620 albertel 900: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.364 www 901: $cnum=
1.620 albertel 902: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.364 www 903: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
904: if ($existing{$ckey}) {
905: $existing{$ckey}.='; '.$logentry;
906: # ready to assign
1.367 www 907: if (&put('accesskeys',{$ckey=>$existing{$ckey}},
1.364 www 908: $cdom,$cnum) eq 'ok') {
909: return 'ok';
910: } else {
911: return 'error: Count not store comment.';
912: }
913: } else {
914: # the key does not exist
915: return 'error: The key does not exist';
916: }
917: }
918:
1.344 www 919: # ------------------------------------------------------ Generate a set of keys
920:
921: sub generate_access_keys {
1.364 www 922: my ($number,$cdom,$cnum,$logentry)=@_;
1.344 www 923: $cdom=
1.620 albertel 924: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 925: $cnum=
1.620 albertel 926: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
1.361 www 927: unless (&allowed('mky',$cdom)) { return 0; }
1.344 www 928: unless (($cdom) && ($cnum)) { return 0; }
929: if ($number>10000) { return 0; }
930: sleep(2); # make sure don't get same seed twice
931: srand(time()^($$+($$<<15))); # from "Programming Perl"
932: my $total=0;
933: for (my $i=1;$i<=$number;$i++) {
934: my $newkey=sprintf("%lx",int(100000*rand)).'-'.
935: sprintf("%lx",int(100000*rand)).'-'.
936: sprintf("%lx",int(100000*rand));
937: $newkey=~s/1/g/g; # folks mix up 1 and l
938: $newkey=~s/0/h/g; # and also 0 and O
939: my %existing=&get('accesskeys',[$newkey],$cdom,$cnum);
940: if ($existing{$newkey}) {
941: $i--;
942: } else {
1.364 www 943: if (&put('accesskeys',
944: { $newkey => '# generated '.localtime().
1.620 albertel 945: ' by '.$env{'user.name'}.'@'.$env{'user.domain'}.
1.364 www 946: '; '.$logentry },
947: $cdom,$cnum) eq 'ok') {
1.344 www 948: $total++;
949: }
950: }
951: }
1.620 albertel 952: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.344 www 953: 'Generated '.$total.' keys for '.$cnum.' at '.$cdom);
954: return $total;
955: }
956:
957: # ------------------------------------------------------- Validate an accesskey
958:
959: sub validate_access_key {
960: my ($ckey,$cdom,$cnum,$udom,$uname)=@_;
961: $cdom=
1.620 albertel 962: $env{'course.'.$env{'request.course.id'}.'.domain'} unless (defined($cdom));
1.344 www 963: $cnum=
1.620 albertel 964: $env{'course.'.$env{'request.course.id'}.'.num'} unless (defined($cnum));
965: $udom=$env{'user.domain'} unless (defined($udom));
966: $uname=$env{'user.name'} unless (defined($uname));
1.345 www 967: my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
1.479 albertel 968: return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
1.70 www 969: }
970:
971: # ------------------------------------- Find the section of student in a course
1.652 albertel 972: sub devalidate_getsection_cache {
973: my ($udom,$unam,$courseid)=@_;
974: my $hashid="$udom:$unam:$courseid";
975: &devalidate_cache_new('getsection',$hashid);
976: }
1.298 matthew 977:
1.815 albertel 978: sub courseid_to_courseurl {
979: my ($courseid) = @_;
980: #already url style courseid
981: return $courseid if ($courseid =~ m{^/});
982:
983: if (exists($env{'course.'.$courseid.'.num'})) {
984: my $cnum = $env{'course.'.$courseid.'.num'};
985: my $cdom = $env{'course.'.$courseid.'.domain'};
986: return "/$cdom/$cnum";
987: }
988:
989: my %courseinfo=&Apache::lonnet::coursedescription($courseid);
990: if (exists($courseinfo{'num'})) {
991: return "/$courseinfo{'domain'}/$courseinfo{'num'}";
992: }
993:
994: return undef;
995: }
996:
1.298 matthew 997: sub getsection {
998: my ($udom,$unam,$courseid)=@_;
1.599 albertel 999: my $cachetime=1800;
1.551 albertel 1000:
1001: my $hashid="$udom:$unam:$courseid";
1.599 albertel 1002: my ($result,$cached)=&is_cached_new('getsection',$hashid);
1.551 albertel 1003: if (defined($cached)) { return $result; }
1004:
1.298 matthew 1005: my %Pending;
1006: my %Expired;
1007: #
1008: # Each role can either have not started yet (pending), be active,
1009: # or have expired.
1010: #
1011: # If there is an active role, we are done.
1012: #
1013: # If there is more than one role which has not started yet,
1014: # choose the one which will start sooner
1015: # If there is one role which has not started yet, return it.
1016: #
1017: # If there is more than one expired role, choose the one which ended last.
1018: # If there is a role which has expired, return it.
1019: #
1.815 albertel 1020: $courseid = &courseid_to_courseurl($courseid);
1.817 raeburn 1021: my %roleshash = &dump('roles',$udom,$unam,$courseid);
1022: foreach my $key (keys(%roleshash)) {
1.479 albertel 1023: next if ($key !~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/);
1.298 matthew 1024: my $section=$1;
1025: if ($key eq $courseid.'_st') { $section=''; }
1.817 raeburn 1026: my ($dummy,$end,$start)=split(/\_/,&unescape($roleshash{$key}));
1.298 matthew 1027: my $now=time;
1.548 albertel 1028: if (defined($end) && $end && ($now > $end)) {
1.298 matthew 1029: $Expired{$end}=$section;
1030: next;
1031: }
1.548 albertel 1032: if (defined($start) && $start && ($now < $start)) {
1.298 matthew 1033: $Pending{$start}=$section;
1034: next;
1035: }
1.599 albertel 1036: return &do_cache_new('getsection',$hashid,$section,$cachetime);
1.298 matthew 1037: }
1038: #
1039: # Presumedly there will be few matching roles from the above
1040: # loop and the sorting time will be negligible.
1041: if (scalar(keys(%Pending))) {
1042: my ($time) = sort {$a <=> $b} keys(%Pending);
1.599 albertel 1043: return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
1.298 matthew 1044: }
1045: if (scalar(keys(%Expired))) {
1046: my @sorted = sort {$a <=> $b} keys(%Expired);
1047: my $time = pop(@sorted);
1.599 albertel 1048: return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
1.298 matthew 1049: }
1.599 albertel 1050: return &do_cache_new('getsection',$hashid,'-1',$cachetime);
1.298 matthew 1051: }
1.70 www 1052:
1.599 albertel 1053: sub save_cache {
1054: &purge_remembered();
1.722 albertel 1055: #&Apache::loncommon::validate_page();
1.620 albertel 1056: undef(%env);
1.780 albertel 1057: undef($env_loaded);
1.599 albertel 1058: }
1.452 albertel 1059:
1.599 albertel 1060: my $to_remember=-1;
1061: my %remembered;
1062: my %accessed;
1063: my $kicks=0;
1064: my $hits=0;
1.849 albertel 1065: sub make_key {
1066: my ($name,$id) = @_;
1.872 albertel 1067: if (length($id) > 65
1068: && length(&escape($id)) > 200) {
1069: $id=length($id).':'.&Digest::MD5::md5_hex($id);
1070: }
1.849 albertel 1071: return &escape($name.':'.$id);
1072: }
1073:
1.599 albertel 1074: sub devalidate_cache_new {
1075: my ($name,$id,$debug) = @_;
1076: if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
1.849 albertel 1077: $id=&make_key($name,$id);
1.599 albertel 1078: $memcache->delete($id);
1079: delete($remembered{$id});
1080: delete($accessed{$id});
1081: }
1082:
1083: sub is_cached_new {
1084: my ($name,$id,$debug) = @_;
1.849 albertel 1085: $id=&make_key($name,$id);
1.599 albertel 1086: if (exists($remembered{$id})) {
1087: if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
1088: $accessed{$id}=[&gettimeofday()];
1089: $hits++;
1090: return ($remembered{$id},1);
1091: }
1092: my $value = $memcache->get($id);
1093: if (!(defined($value))) {
1094: if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
1.417 albertel 1095: return (undef,undef);
1.416 albertel 1096: }
1.599 albertel 1097: if ($value eq '__undef__') {
1098: if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
1099: $value=undef;
1100: }
1101: &make_room($id,$value,$debug);
1102: if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
1103: return ($value,1);
1104: }
1105:
1106: sub do_cache_new {
1107: my ($name,$id,$value,$time,$debug) = @_;
1.849 albertel 1108: $id=&make_key($name,$id);
1.599 albertel 1109: my $setvalue=$value;
1110: if (!defined($setvalue)) {
1111: $setvalue='__undef__';
1112: }
1.623 albertel 1113: if (!defined($time) ) {
1114: $time=600;
1115: }
1.599 albertel 1116: if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
1.872 albertel 1117: if (!($memcache->set($id,$setvalue,$time))) {
1118: &logthis("caching of id -> $id failed");
1119: }
1.600 albertel 1120: # need to make a copy of $value
1121: #&make_room($id,$value,$debug);
1.599 albertel 1122: return $value;
1123: }
1124:
1125: sub make_room {
1126: my ($id,$value,$debug)=@_;
1127: $remembered{$id}=$value;
1128: if ($to_remember<0) { return; }
1129: $accessed{$id}=[&gettimeofday()];
1130: if (scalar(keys(%remembered)) <= $to_remember) { return; }
1131: my $to_kick;
1132: my $max_time=0;
1133: foreach my $other (keys(%accessed)) {
1134: if (&tv_interval($accessed{$other}) > $max_time) {
1135: $to_kick=$other;
1136: $max_time=&tv_interval($accessed{$other});
1137: }
1138: }
1139: delete($remembered{$to_kick});
1140: delete($accessed{$to_kick});
1141: $kicks++;
1142: if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
1.541 albertel 1143: return;
1144: }
1145:
1.599 albertel 1146: sub purge_remembered {
1.604 albertel 1147: #&logthis("Tossing ".scalar(keys(%remembered)));
1148: #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
1.599 albertel 1149: undef(%remembered);
1150: undef(%accessed);
1.428 albertel 1151: }
1.70 www 1152: # ------------------------------------- Read an entry from a user's environment
1153:
1154: sub userenvironment {
1155: my ($udom,$unam,@what)=@_;
1156: my %returnhash=();
1157: my @answer=split(/\&/,
1158: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
1159: &homeserver($unam,$udom)));
1160: my $i;
1161: for ($i=0;$i<=$#what;$i++) {
1162: $returnhash{$what[$i]}=&unescape($answer[$i]);
1163: }
1164: return %returnhash;
1.1 albertel 1165: }
1166:
1.617 albertel 1167: # ---------------------------------------------------------- Get a studentphoto
1168: sub studentphoto {
1169: my ($udom,$unam,$ext) = @_;
1170: my $home=&Apache::lonnet::homeserver($unam,$udom);
1.706 raeburn 1171: if (defined($env{'request.course.id'})) {
1.708 raeburn 1172: if ($env{'course.'.$env{'request.course.id'}.'.internal.showphoto'}) {
1.706 raeburn 1173: if ($udom eq $env{'course.'.$env{'request.course.id'}.'.domain'}) {
1174: return(&retrievestudentphoto($udom,$unam,$ext));
1175: } else {
1176: my ($result,$perm_reqd)=
1.707 albertel 1177: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1178: if ($result eq 'ok') {
1179: if (!($perm_reqd eq 'yes')) {
1180: return(&retrievestudentphoto($udom,$unam,$ext));
1181: }
1182: }
1183: }
1184: }
1185: } else {
1186: my ($result,$perm_reqd) =
1.707 albertel 1187: &Apache::lonnet::auto_photo_permission($unam,$udom);
1.706 raeburn 1188: if ($result eq 'ok') {
1189: if (!($perm_reqd eq 'yes')) {
1190: return(&retrievestudentphoto($udom,$unam,$ext));
1191: }
1192: }
1193: }
1194: return '/adm/lonKaputt/lonlogo_broken.gif';
1195: }
1196:
1197: sub retrievestudentphoto {
1198: my ($udom,$unam,$ext,$type) = @_;
1199: my $home=&Apache::lonnet::homeserver($unam,$udom);
1200: my $ret=&Apache::lonnet::reply("studentphoto:$udom:$unam:$ext:$type",$home);
1201: if ($ret eq 'ok') {
1202: my $url="/uploaded/$udom/$unam/internal/studentphoto.$ext";
1203: if ($type eq 'thumbnail') {
1204: $url="/uploaded/$udom/$unam/internal/studentphoto_tn.$ext";
1205: }
1206: my $tokenurl=&Apache::lonnet::tokenwrapper($url);
1207: return $tokenurl;
1208: } else {
1209: if ($type eq 'thumbnail') {
1210: return '/adm/lonKaputt/genericstudent_tn.gif';
1211: } else {
1212: return '/adm/lonKaputt/lonlogo_broken.gif';
1213: }
1.617 albertel 1214: }
1215: }
1216:
1.263 www 1217: # -------------------------------------------------------------------- New chat
1218:
1219: sub chatsend {
1.724 raeburn 1220: my ($newentry,$anon,$group)=@_;
1.620 albertel 1221: my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
1222: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1223: my $chome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.263 www 1224: &reply('chatsend:'.$cdom.':'.$cnum.':'.
1.620 albertel 1225: &escape($env{'user.domain'}.':'.$env{'user.name'}.':'.$anon.':'.
1.724 raeburn 1226: &escape($newentry)).':'.$group,$chome);
1.292 www 1227: }
1228:
1229: # ------------------------------------------ Find current version of a resource
1230:
1231: sub getversion {
1232: my $fname=&clutter(shift);
1233: unless ($fname=~/^\/res\//) { return -1; }
1234: return ¤tversion(&filelocation('',$fname));
1235: }
1236:
1237: sub currentversion {
1238: my $fname=shift;
1.599 albertel 1239: my ($result,$cached)=&is_cached_new('resversion',$fname);
1.440 www 1240: if (defined($cached)) { return $result; }
1.292 www 1241: my $author=$fname;
1242: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1243: my ($udom,$uname)=split(/\//,$author);
1244: my $home=homeserver($uname,$udom);
1245: if ($home eq 'no_host') {
1246: return -1;
1247: }
1248: my $answer=reply("currentversion:$fname",$home);
1249: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1250: return -1;
1251: }
1.599 albertel 1252: return &do_cache_new('resversion',$fname,$answer,600);
1.263 www 1253: }
1254:
1.1 albertel 1255: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 1256:
1.1 albertel 1257: sub subscribe {
1258: my $fname=shift;
1.761 raeburn 1259: if ($fname=~/\/(aboutme|syllabus|bulletinboard|smppg)$/) { return ''; }
1.532 albertel 1260: $fname=~s/[\n\r]//g;
1.1 albertel 1261: my $author=$fname;
1262: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1263: my ($udom,$uname)=split(/\//,$author);
1264: my $home=homeserver($uname,$udom);
1.335 albertel 1265: if ($home eq 'no_host') {
1266: return 'not_found';
1.1 albertel 1267: }
1268: my $answer=reply("sub:$fname",$home);
1.64 www 1269: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
1270: $answer.=' by '.$home;
1271: }
1.1 albertel 1272: return $answer;
1273: }
1274:
1.8 www 1275: # -------------------------------------------------------------- Replicate file
1276:
1277: sub repcopy {
1278: my $filename=shift;
1.23 www 1279: $filename=~s/\/+/\//g;
1.607 raeburn 1280: if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
1281: if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 1282: if ($filename=~m|^/home/httpd/html/userfiles/| or
1.609 banghart 1283: $filename=~m -^/*(uploaded|editupload)/-) {
1.538 albertel 1284: return &repcopy_userfile($filename);
1285: }
1.532 albertel 1286: $filename=~s/[\n\r]//g;
1.8 www 1287: my $transname="$filename.in.transfer";
1.828 www 1288: # FIXME: this should flock
1.607 raeburn 1289: if ((-e $filename) || (-e $transname)) { return 'ok'; }
1.8 www 1290: my $remoteurl=subscribe($filename);
1.64 www 1291: if ($remoteurl =~ /^con_lost by/) {
1292: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1293: return 'unavailable';
1.8 www 1294: } elsif ($remoteurl eq 'not_found') {
1.441 albertel 1295: #&logthis("Subscribe returned not_found: $filename");
1.607 raeburn 1296: return 'not_found';
1.64 www 1297: } elsif ($remoteurl =~ /^rejected by/) {
1298: &logthis("Subscribe returned $remoteurl: $filename");
1.607 raeburn 1299: return 'forbidden';
1.20 www 1300: } elsif ($remoteurl eq 'directory') {
1.607 raeburn 1301: return 'ok';
1.8 www 1302: } else {
1.290 www 1303: my $author=$filename;
1304: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
1305: my ($udom,$uname)=split(/\//,$author);
1306: my $home=homeserver($uname,$udom);
1307: unless ($home eq $perlvar{'lonHostID'}) {
1.8 www 1308: my @parts=split(/\//,$filename);
1309: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1310: if ($path ne "$perlvar{'lonDocRoot'}/res") {
1311: &logthis("Malconfiguration for replication: $filename");
1.607 raeburn 1312: return 'bad_request';
1.8 www 1313: }
1314: my $count;
1315: for ($count=5;$count<$#parts;$count++) {
1316: $path.="/$parts[$count]";
1317: if ((-e $path)!=1) {
1318: mkdir($path,0777);
1319: }
1320: }
1321: my $ua=new LWP::UserAgent;
1322: my $request=new HTTP::Request('GET',"$remoteurl");
1323: my $response=$ua->request($request,$transname);
1324: if ($response->is_error()) {
1325: unlink($transname);
1326: my $message=$response->status_line;
1.672 albertel 1327: &logthis("<font color=\"blue\">WARNING:"
1.12 www 1328: ." LWP get: $message: $filename</font>");
1.607 raeburn 1329: return 'unavailable';
1.8 www 1330: } else {
1.16 www 1331: if ($remoteurl!~/\.meta$/) {
1332: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
1333: my $mresponse=$ua->request($mrequest,$filename.'.meta');
1334: if ($mresponse->is_error()) {
1335: unlink($filename.'.meta');
1336: &logthis(
1.672 albertel 1337: "<font color=\"yellow\">INFO: No metadata: $filename</font>");
1.16 www 1338: }
1339: }
1.8 www 1340: rename($transname,$filename);
1.607 raeburn 1341: return 'ok';
1.8 www 1342: }
1.290 www 1343: }
1.8 www 1344: }
1.330 www 1345: }
1346:
1347: # ------------------------------------------------ Get server side include body
1348: sub ssi_body {
1.381 albertel 1349: my ($filelink,%form)=@_;
1.606 matthew 1350: if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
1351: $form{'LONCAPA_INTERNAL_no_discussion'}='true';
1352: }
1.330 www 1353: my $output=($filelink=~/^http\:/?&externalssi($filelink):
1.381 albertel 1354: &ssi($filelink,%form));
1.778 albertel 1355: $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+?// END LON-CAPA Internal\s*(-->)?\s||gs;
1.451 albertel 1356: $output=~s/^.*?\<body[^\>]*\>//si;
1357: $output=~s/(.*)\<\/body\s*\>.*?$/$1/si;
1.330 www 1358: return $output;
1.8 www 1359: }
1360:
1.15 www 1361: # --------------------------------------------------------- Server Side Include
1362:
1.782 albertel 1363: sub absolute_url {
1364: my ($host_name) = @_;
1365: my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
1366: if ($host_name eq '') {
1367: $host_name = $ENV{'SERVER_NAME'};
1368: }
1369: return $protocol.$host_name;
1370: }
1371:
1.15 www 1372: sub ssi {
1373:
1.23 www 1374: my ($fn,%form)=@_;
1.15 www 1375:
1376: my $ua=new LWP::UserAgent;
1.23 www 1377:
1378: my $request;
1.711 albertel 1379:
1380: $form{'no_update_last_known'}=1;
1381:
1.23 www 1382: if (%form) {
1.782 albertel 1383: $request=new HTTP::Request('POST',&absolute_url().$fn);
1.201 albertel 1384: $request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
1.23 www 1385: } else {
1.782 albertel 1386: $request=new HTTP::Request('GET',&absolute_url().$fn);
1.23 www 1387: }
1388:
1.15 www 1389: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
1390: my $response=$ua->request($request);
1391:
1.324 www 1392: return $response->content;
1393: }
1394:
1395: sub externalssi {
1396: my ($url)=@_;
1397: my $ua=new LWP::UserAgent;
1398: my $request=new HTTP::Request('GET',$url);
1399: my $response=$ua->request($request);
1.15 www 1400: return $response->content;
1401: }
1.254 www 1402:
1.492 albertel 1403: # -------------------------------- Allow a /uploaded/ URI to be vouched for
1404:
1405: sub allowuploaded {
1406: my ($srcurl,$url)=@_;
1407: $url=&clutter(&declutter($url));
1408: my $dir=$url;
1409: $dir=~s/\/[^\/]+$//;
1410: my %httpref=();
1411: my $httpurl=&hreflocation('',$url);
1412: $httpref{'httpref.'.$httpurl}=$srcurl;
1413: &Apache::lonnet::appenv(%httpref);
1.254 www 1414: }
1.477 raeburn 1415:
1.478 albertel 1416: # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
1.638 albertel 1417: # input: action, courseID, current domain, intended
1.637 raeburn 1418: # path to file, source of file, instruction to parse file for objects,
1419: # ref to hash for embedded objects,
1420: # ref to hash for codebase of java objects.
1421: #
1.485 raeburn 1422: # output: url to file (if action was uploaddoc),
1423: # ok if successful, or diagnostic message otherwise (if action was propagate or copy)
1.477 raeburn 1424: #
1.478 albertel 1425: # Allows directory structure to be used within lonUsers/../userfiles/ for a
1426: # course.
1.477 raeburn 1427: #
1.478 albertel 1428: # action = propagate - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1429: # will be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles in
1430: # course's home server.
1.477 raeburn 1431: #
1.478 albertel 1432: # action = copy - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file will
1433: # be copied from $source (current location) to
1434: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1435: # and will then be copied to
1436: # /home/httpd/lonUsers/$domain/1/2/3/$course/userfiles/$file in
1437: # course's home server.
1.485 raeburn 1438: #
1.481 raeburn 1439: # action = uploaddoc - /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1.620 albertel 1440: # will be retrived from $env{form.uploaddoc} (from DOCS interface) to
1.481 raeburn 1441: # /home/httpd/html/userfiles/$domain/1/2/3/$course/$file
1442: # and will then be copied to /home/httpd/lonUsers/1/2/3/$course/userfiles/$file
1443: # in course's home server.
1.637 raeburn 1444: #
1.477 raeburn 1445:
1446: sub process_coursefile {
1.638 albertel 1447: my ($action,$docuname,$docudom,$file,$source,$parser,$allfiles,$codebase)=@_;
1.477 raeburn 1448: my $fetchresult;
1.638 albertel 1449: my $home=&homeserver($docuname,$docudom);
1.477 raeburn 1450: if ($action eq 'propagate') {
1.638 albertel 1451: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1452: $home);
1.481 raeburn 1453: } else {
1.477 raeburn 1454: my $fpath = '';
1455: my $fname = $file;
1.478 albertel 1456: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1.477 raeburn 1457: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1.637 raeburn 1458: my $filepath = &build_filepath($fpath);
1.481 raeburn 1459: if ($action eq 'copy') {
1460: if ($source eq '') {
1461: $fetchresult = 'no source file';
1462: return $fetchresult;
1463: } else {
1464: my $destination = $filepath.'/'.$fname;
1465: rename($source,$destination);
1466: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1467: $home);
1.481 raeburn 1468: }
1469: } elsif ($action eq 'uploaddoc') {
1470: open(my $fh,'>'.$filepath.'/'.$fname);
1.620 albertel 1471: print $fh $env{'form.'.$source};
1.481 raeburn 1472: close($fh);
1.637 raeburn 1473: if ($parser eq 'parse') {
1474: my $parse_result = &extract_embedded_items($filepath,$fname,$allfiles,$codebase);
1475: unless ($parse_result eq 'ok') {
1476: &logthis('Failed to parse '.$filepath.'/'.$fname.' for embedded media: '.$parse_result);
1477: }
1478: }
1.477 raeburn 1479: $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1480: $home);
1.481 raeburn 1481: if ($fetchresult eq 'ok') {
1482: return '/uploaded/'.$fpath.'/'.$fname;
1483: } else {
1484: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1485: ' to host '.$home.': '.$fetchresult);
1.481 raeburn 1486: return '/adm/notfound.html';
1487: }
1.477 raeburn 1488: }
1489: }
1.485 raeburn 1490: unless ( $fetchresult eq 'ok') {
1.477 raeburn 1491: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1.638 albertel 1492: ' to host '.$home.': '.$fetchresult);
1.477 raeburn 1493: }
1494: return $fetchresult;
1495: }
1496:
1.637 raeburn 1497: sub build_filepath {
1498: my ($fpath) = @_;
1499: my $filepath=$perlvar{'lonDocRoot'}.'/userfiles';
1500: unless ($fpath eq '') {
1501: my @parts=split('/',$fpath);
1502: foreach my $part (@parts) {
1503: $filepath.= '/'.$part;
1504: if ((-e $filepath)!=1) {
1505: mkdir($filepath,0777);
1506: }
1507: }
1508: }
1509: return $filepath;
1510: }
1511:
1512: sub store_edited_file {
1.638 albertel 1513: my ($primary_url,$content,$docudom,$docuname,$fetchresult) = @_;
1.637 raeburn 1514: my $file = $primary_url;
1515: $file =~ s#^/uploaded/$docudom/$docuname/##;
1516: my $fpath = '';
1517: my $fname = $file;
1518: ($fpath,$fname) = ($file =~ m|^(.*)/([^/]+)$|);
1519: $fpath=$docudom.'/'.$docuname.'/'.$fpath;
1520: my $filepath = &build_filepath($fpath);
1521: open(my $fh,'>'.$filepath.'/'.$fname);
1522: print $fh $content;
1523: close($fh);
1.638 albertel 1524: my $home=&homeserver($docuname,$docudom);
1.637 raeburn 1525: $$fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$file,
1.638 albertel 1526: $home);
1.637 raeburn 1527: if ($$fetchresult eq 'ok') {
1528: return '/uploaded/'.$fpath.'/'.$fname;
1529: } else {
1.638 albertel 1530: &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$file.
1531: ' to host '.$home.': '.$$fetchresult);
1.637 raeburn 1532: return '/adm/notfound.html';
1533: }
1534: }
1535:
1.531 albertel 1536: sub clean_filename {
1.831 albertel 1537: my ($fname,$args)=@_;
1.315 www 1538: # Replace Windows backslashes by forward slashes
1.257 www 1539: $fname=~s/\\/\//g;
1.831 albertel 1540: if (!$args->{'keep_path'}) {
1541: # Get rid of everything but the actual filename
1542: $fname=~s/^.*\/([^\/]+)$/$1/;
1543: }
1.315 www 1544: # Replace spaces by underscores
1545: $fname=~s/\s+/\_/g;
1546: # Replace all other weird characters by nothing
1.831 albertel 1547: $fname=~s{[^/\w\.\-]}{}g;
1.540 albertel 1548: # Replace all .\d. sequences with _\d. so they no longer look like version
1549: # numbers
1550: $fname=~s/\.(\d+)(?=\.)/_$1/g;
1.531 albertel 1551: return $fname;
1552: }
1553:
1.608 albertel 1554: # --------------- Take an uploaded file and put it into the userfiles directory
1.686 albertel 1555: # input: $formname - the contents of the file are in $env{"form.$formname"}
1.719 banghart 1556: # the desired filenam is in $env{"form.$formname.filename"}
1.686 albertel 1557: # $coursedoc - if true up to the current course
1558: # if false
1559: # $subdir - directory in userfile to store the file into
1.858 raeburn 1560: # $parser - instruction to parse file for objects ($parser = parse)
1561: # $allfiles - reference to hash for embedded objects
1562: # $codebase - reference to hash for codebase of java objects
1563: # $desuname - username for permanent storage of uploaded file
1564: # $dsetudom - domain for permanaent storage of uploaded file
1.860 raeburn 1565: # $thumbwidth - width (pixels) of thumbnail to make for uploaded image
1566: # $thumbheight - height (pixels) of thumbnail to make for uploaded image
1.858 raeburn 1567: #
1.686 albertel 1568: # output: url of file in userspace, or error: <message>
1569: # or /adm/notfound.html if failure to upload occurse
1.608 albertel 1570:
1571:
1.531 albertel 1572: sub userfileupload {
1.860 raeburn 1573: my ($formname,$coursedoc,$subdir,$parser,$allfiles,$codebase,$destuname,
1574: $destudom,$thumbwidth,$thumbheight)=@_;
1.531 albertel 1575: if (!defined($subdir)) { $subdir='unknown'; }
1.620 albertel 1576: my $fname=$env{'form.'.$formname.'.filename'};
1.531 albertel 1577: $fname=&clean_filename($fname);
1.315 www 1578: # See if there is anything left
1.257 www 1579: unless ($fname) { return 'error: no uploaded file'; }
1.620 albertel 1580: chop($env{'form.'.$formname});
1.523 raeburn 1581: if (($formname eq 'screenshot') && ($subdir eq 'helprequests')) { #files uploaded to help request form are handled differently
1582: my $now = time;
1583: my $filepath = 'tmp/helprequests/'.$now;
1584: my @parts=split(/\//,$filepath);
1585: my $fullpath = $perlvar{'lonDaemons'};
1586: for (my $i=0;$i<@parts;$i++) {
1587: $fullpath .= '/'.$parts[$i];
1588: if ((-e $fullpath)!=1) {
1589: mkdir($fullpath,0777);
1590: }
1591: }
1592: open(my $fh,'>'.$fullpath.'/'.$fname);
1.620 albertel 1593: print $fh $env{'form.'.$formname};
1.523 raeburn 1594: close($fh);
1.741 raeburn 1595: return $fullpath.'/'.$fname;
1596: } elsif (($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) { #files uploaded to create course page are handled differently
1597: my $filepath = 'tmp/addcourse/'.$destudom.'/web/'.$env{'user.name'}.
1598: '_'.$env{'user.domain'}.'/pending';
1599: my @parts=split(/\//,$filepath);
1600: my $fullpath = $perlvar{'lonDaemons'};
1601: for (my $i=0;$i<@parts;$i++) {
1602: $fullpath .= '/'.$parts[$i];
1603: if ((-e $fullpath)!=1) {
1604: mkdir($fullpath,0777);
1605: }
1606: }
1607: open(my $fh,'>'.$fullpath.'/'.$fname);
1608: print $fh $env{'form.'.$formname};
1609: close($fh);
1610: return $fullpath.'/'.$fname;
1.523 raeburn 1611: }
1.719 banghart 1612:
1.258 www 1613: # Create the directory if not present
1.493 albertel 1614: $fname="$subdir/$fname";
1.259 www 1615: if ($coursedoc) {
1.638 albertel 1616: my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1617: my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.646 raeburn 1618: if ($env{'form.folder'} =~ m/^(default|supplemental)/) {
1.638 albertel 1619: return &finishuserfileupload($docuname,$docudom,
1620: $formname,$fname,$parser,$allfiles,
1.860 raeburn 1621: $codebase,$thumbwidth,$thumbheight);
1.481 raeburn 1622: } else {
1.620 albertel 1623: $fname=$env{'form.folder'}.'/'.$fname;
1.638 albertel 1624: return &process_coursefile('uploaddoc',$docuname,$docudom,
1625: $fname,$formname,$parser,
1626: $allfiles,$codebase);
1.481 raeburn 1627: }
1.719 banghart 1628: } elsif (defined($destuname)) {
1629: my $docuname=$destuname;
1630: my $docudom=$destudom;
1.860 raeburn 1631: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
1632: $parser,$allfiles,$codebase,
1633: $thumbwidth,$thumbheight);
1.719 banghart 1634:
1.259 www 1635: } else {
1.638 albertel 1636: my $docuname=$env{'user.name'};
1637: my $docudom=$env{'user.domain'};
1.714 raeburn 1638: if (exists($env{'form.group'})) {
1639: $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
1640: $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1641: }
1.860 raeburn 1642: return &finishuserfileupload($docuname,$docudom,$formname,$fname,
1643: $parser,$allfiles,$codebase,
1644: $thumbwidth,$thumbheight);
1.259 www 1645: }
1.271 www 1646: }
1647:
1648: sub finishuserfileupload {
1.860 raeburn 1649: my ($docuname,$docudom,$formname,$fname,$parser,$allfiles,$codebase,
1650: $thumbwidth,$thumbheight) = @_;
1.477 raeburn 1651: my $path=$docudom.'/'.$docuname.'/';
1.258 www 1652: my $filepath=$perlvar{'lonDocRoot'};
1.860 raeburn 1653: my ($fnamepath,$file,$fetchthumb);
1.494 albertel 1654: $file=$fname;
1655: if ($fname=~m|/|) {
1656: ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
1657: $path.=$fnamepath.'/';
1658: }
1.259 www 1659: my @parts=split(/\//,$filepath.'/userfiles/'.$path);
1.258 www 1660: my $count;
1661: for ($count=4;$count<=$#parts;$count++) {
1662: $filepath.="/$parts[$count]";
1663: if ((-e $filepath)!=1) {
1664: mkdir($filepath,0777);
1665: }
1666: }
1667: # Save the file
1668: {
1.701 albertel 1669: if (!open(FH,'>'.$filepath.'/'.$file)) {
1670: &logthis('Failed to create '.$filepath.'/'.$file);
1671: print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
1672: return '/adm/notfound.html';
1673: }
1674: if (!print FH ($env{'form.'.$formname})) {
1675: &logthis('Failed to write to '.$filepath.'/'.$file);
1676: print STDERR ('Failed to write to '.$filepath.'/'.$file."\n");
1677: return '/adm/notfound.html';
1678: }
1.570 albertel 1679: close(FH);
1.258 www 1680: }
1.637 raeburn 1681: if ($parser eq 'parse') {
1.638 albertel 1682: my $parse_result = &extract_embedded_items($filepath,$file,$allfiles,
1683: $codebase);
1.637 raeburn 1684: unless ($parse_result eq 'ok') {
1.638 albertel 1685: &logthis('Failed to parse '.$filepath.$file.
1686: ' for embedded media: '.$parse_result);
1.637 raeburn 1687: }
1688: }
1.860 raeburn 1689: if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
1690: my $input = $filepath.'/'.$file;
1691: my $output = $filepath.'/'.'tn-'.$file;
1692: my $thumbsize = $thumbwidth.'x'.$thumbheight;
1693: system("convert -sample $thumbsize $input $output");
1694: if (-e $filepath.'/'.'tn-'.$file) {
1695: $fetchthumb = 1;
1696: }
1697: }
1.858 raeburn 1698:
1.259 www 1699: # Notify homeserver to grep it
1700: #
1.638 albertel 1701: my $docuhome=&homeserver($docuname,$docudom);
1.494 albertel 1702: my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
1.295 www 1703: if ($fetchresult eq 'ok') {
1.860 raeburn 1704: if ($fetchthumb) {
1705: my $thumbresult= &reply('fetchuserfile:'.$path.'tn-'.$file,$docuhome);
1706: if ($thumbresult ne 'ok') {
1707: &logthis('Failed to transfer '.$path.'tn-'.$file.' to host '.
1708: $docuhome.': '.$thumbresult);
1709: }
1710: }
1.259 www 1711: #
1.258 www 1712: # Return the URL to it
1.494 albertel 1713: return '/uploaded/'.$path.$file;
1.263 www 1714: } else {
1.494 albertel 1715: &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
1716: ': '.$fetchresult);
1.263 www 1717: return '/adm/notfound.html';
1.858 raeburn 1718: }
1.493 albertel 1719: }
1720:
1.637 raeburn 1721: sub extract_embedded_items {
1.648 raeburn 1722: my ($filepath,$file,$allfiles,$codebase,$content) = @_;
1.637 raeburn 1723: my @state = ();
1724: my %javafiles = (
1725: codebase => '',
1726: code => '',
1727: archive => ''
1728: );
1729: my %mediafiles = (
1730: src => '',
1731: movie => '',
1732: );
1.648 raeburn 1733: my $p;
1734: if ($content) {
1735: $p = HTML::LCParser->new($content);
1736: } else {
1737: $p = HTML::LCParser->new($filepath.'/'.$file);
1738: }
1.641 albertel 1739: while (my $t=$p->get_token()) {
1.640 albertel 1740: if ($t->[0] eq 'S') {
1741: my ($tagname, $attr) = ($t->[1],$t->[2]);
1.886 albertel 1742: push(@state, $tagname);
1.648 raeburn 1743: if (lc($tagname) eq 'allow') {
1744: &add_filetype($allfiles,$attr->{'src'},'src');
1745: }
1.640 albertel 1746: if (lc($tagname) eq 'img') {
1747: &add_filetype($allfiles,$attr->{'src'},'src');
1748: }
1.886 albertel 1749: if (lc($tagname) eq 'a') {
1750: &add_filetype($allfiles,$attr->{'href'},'href');
1751: }
1.645 raeburn 1752: if (lc($tagname) eq 'script') {
1753: if ($attr->{'archive'} =~ /\.jar$/i) {
1754: &add_filetype($allfiles,$attr->{'archive'},'archive');
1755: } else {
1756: &add_filetype($allfiles,$attr->{'src'},'src');
1757: }
1758: }
1759: if (lc($tagname) eq 'link') {
1760: if (lc($attr->{'rel'}) eq 'stylesheet') {
1761: &add_filetype($allfiles,$attr->{'href'},'href');
1762: }
1763: }
1.640 albertel 1764: if (lc($tagname) eq 'object' ||
1765: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')) {
1766: foreach my $item (keys(%javafiles)) {
1767: $javafiles{$item} = '';
1768: }
1769: }
1770: if (lc($state[-2]) eq 'object' && lc($tagname) eq 'param') {
1771: my $name = lc($attr->{'name'});
1772: foreach my $item (keys(%javafiles)) {
1773: if ($name eq $item) {
1774: $javafiles{$item} = $attr->{'value'};
1775: last;
1776: }
1777: }
1778: foreach my $item (keys(%mediafiles)) {
1779: if ($name eq $item) {
1780: &add_filetype($allfiles, $attr->{'value'}, 'value');
1781: last;
1782: }
1783: }
1784: }
1785: if (lc($tagname) eq 'embed' || lc($tagname) eq 'applet') {
1786: foreach my $item (keys(%javafiles)) {
1787: if ($attr->{$item}) {
1788: $javafiles{$item} = $attr->{$item};
1789: last;
1790: }
1791: }
1792: foreach my $item (keys(%mediafiles)) {
1793: if ($attr->{$item}) {
1794: &add_filetype($allfiles,$attr->{$item},$item);
1795: last;
1796: }
1797: }
1798: }
1799: } elsif ($t->[0] eq 'E') {
1800: my ($tagname) = ($t->[1]);
1801: if ($javafiles{'codebase'} ne '') {
1802: $javafiles{'codebase'} .= '/';
1803: }
1804: if (lc($tagname) eq 'applet' ||
1805: lc($tagname) eq 'object' ||
1806: (lc($tagname) eq 'embed' && lc($state[-2]) ne 'object')
1807: ) {
1808: foreach my $item (keys(%javafiles)) {
1809: if ($item ne 'codebase' && $javafiles{$item} ne '') {
1810: my $file=$javafiles{'codebase'}.$javafiles{$item};
1811: &add_filetype($allfiles,$file,$item);
1812: }
1813: }
1814: }
1815: pop @state;
1816: }
1817: }
1.637 raeburn 1818: return 'ok';
1819: }
1820:
1.639 albertel 1821: sub add_filetype {
1822: my ($allfiles,$file,$type)=@_;
1823: if (exists($allfiles->{$file})) {
1824: unless (grep/^\Q$type\E$/, @{$allfiles->{$file}}) {
1825: push(@{$allfiles->{$file}}, &escape($type));
1826: }
1827: } else {
1828: @{$allfiles->{$file}} = (&escape($type));
1.637 raeburn 1829: }
1830: }
1831:
1.493 albertel 1832: sub removeuploadedurl {
1833: my ($url)=@_;
1834: my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
1.613 albertel 1835: return &removeuserfile($uname,$udom,$fname);
1.490 albertel 1836: }
1837:
1838: sub removeuserfile {
1839: my ($docuname,$docudom,$fname)=@_;
1840: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 1841: my $result = &reply("removeuserfile:$docudom/$docuname/$fname",$home);
1842: if ($result eq 'ok') {
1843: if (($fname !~ /\.meta$/) && (&is_portfolio_file($fname))) {
1844: my $metafile = $fname.'.meta';
1845: my $metaresult = &removeuserfile($docuname,$docudom,$metafile);
1.823 albertel 1846: my $url = "/uploaded/$docudom/$docuname/$fname";
1847: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 1848: my $sqlresult =
1.823 albertel 1849: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 1850: 'portfolio_metadata',$group,
1851: 'delete');
1.798 raeburn 1852: }
1853: }
1854: return $result;
1.257 www 1855: }
1.15 www 1856:
1.530 albertel 1857: sub mkdiruserfile {
1858: my ($docuname,$docudom,$dir)=@_;
1859: my $home=&homeserver($docuname,$docudom);
1860: return &reply("mkdiruserfile:".&escape("$docudom/$docuname/$dir"),$home);
1861: }
1862:
1.531 albertel 1863: sub renameuserfile {
1864: my ($docuname,$docudom,$old,$new)=@_;
1865: my $home=&homeserver($docuname,$docudom);
1.798 raeburn 1866: my $result = &reply("renameuserfile:$docudom:$docuname:".
1867: &escape("$old").':'.&escape("$new"),$home);
1868: if ($result eq 'ok') {
1869: if (($old !~ /\.meta$/) && (&is_portfolio_file($old))) {
1870: my $oldmeta = $old.'.meta';
1871: my $newmeta = $new.'.meta';
1872: my $metaresult =
1873: &renameuserfile($docuname,$docudom,$oldmeta,$newmeta);
1.823 albertel 1874: my $url = "/uploaded/$docudom/$docuname/$old";
1875: my ($file,$group) = (&parse_portfolio_url($url))[3,4];
1.821 raeburn 1876: my $sqlresult =
1.823 albertel 1877: &update_portfolio_table($docuname,$docudom,$file,
1.821 raeburn 1878: 'portfolio_metadata',$group,
1879: 'delete');
1.798 raeburn 1880: }
1881: }
1882: return $result;
1.531 albertel 1883: }
1884:
1.14 www 1885: # ------------------------------------------------------------------------- Log
1886:
1887: sub log {
1888: my ($dom,$nam,$hom,$what)=@_;
1.47 www 1889: return critical("log:$dom:$nam:$what",$hom);
1.157 www 1890: }
1891:
1892: # ------------------------------------------------------------------ Course Log
1.352 www 1893: #
1894: # This routine flushes several buffers of non-mission-critical nature
1895: #
1.157 www 1896:
1897: sub flushcourselogs {
1.352 www 1898: &logthis('Flushing log buffers');
1899: #
1900: # course logs
1901: # This is a log of all transactions in a course, which can be used
1902: # for data mining purposes
1903: #
1904: # It also collects the courseid database, which lists last transaction
1905: # times and course titles for all courseids
1906: #
1907: my %courseidbuffer=();
1.800 albertel 1908: foreach my $crsid (keys %courselogs) {
1.352 www 1909: if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
1.188 www 1910: &escape($courselogs{$crsid}),
1911: $coursehombuf{$crsid}) eq 'ok') {
1.157 www 1912: delete $courselogs{$crsid};
1913: } else {
1914: &logthis('Failed to flush log buffer for '.$crsid);
1915: if (length($courselogs{$crsid})>40000) {
1.672 albertel 1916: &logthis("<font color=\"blue\">WARNING: Buffer for ".$crsid.
1.157 www 1917: " exceeded maximum size, deleting.</font>");
1918: delete $courselogs{$crsid};
1919: }
1.352 www 1920: }
1921: if ($courseidbuffer{$coursehombuf{$crsid}}) {
1922: $courseidbuffer{$coursehombuf{$crsid}}.='&'.
1.516 raeburn 1923: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 1924: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.352 www 1925: } else {
1926: $courseidbuffer{$coursehombuf{$crsid}}=
1.516 raeburn 1927: &escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
1.741 raeburn 1928: ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid}).':'.&escape($coursetypebuf{$crsid});
1.571 raeburn 1929: }
1.191 harris41 1930: }
1.352 www 1931: #
1932: # Write course id database (reverse lookup) to homeserver of courses
1933: # Is used in pickcourse
1934: #
1.840 albertel 1935: foreach my $crs_home (keys(%courseidbuffer)) {
1.844 albertel 1936: &courseidput(&host_domain($crs_home),$courseidbuffer{$crs_home},
1.840 albertel 1937: $crs_home);
1.352 www 1938: }
1939: #
1940: # File accesses
1941: # Writes to the dynamic metadata of resources to get hit counts, etc.
1942: #
1.449 matthew 1943: foreach my $entry (keys(%accesshash)) {
1.458 matthew 1944: if ($entry =~ /___count$/) {
1945: my ($dom,$name);
1.807 albertel 1946: ($dom,$name,undef)=
1.811 albertel 1947: ($entry=~m{___($match_domain)/($match_name)/(.*)___count$});
1.458 matthew 1948: if (! defined($dom) || $dom eq '' ||
1949: ! defined($name) || $name eq '') {
1.620 albertel 1950: my $cid = $env{'request.course.id'};
1951: $dom = $env{'request.'.$cid.'.domain'};
1952: $name = $env{'request.'.$cid.'.num'};
1.458 matthew 1953: }
1.450 matthew 1954: my $value = $accesshash{$entry};
1955: my (undef,$url,undef) = ($entry =~ /^(.*)___(.*)___count$/);
1956: my %temphash=($url => $value);
1.449 matthew 1957: my $result = &inc('nohist_accesscount',\%temphash,$dom,$name);
1958: if ($result eq 'ok') {
1959: delete $accesshash{$entry};
1960: } elsif ($result eq 'unknown_cmd') {
1961: # Target server has old code running on it.
1.450 matthew 1962: my %temphash=($entry => $value);
1.449 matthew 1963: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1964: delete $accesshash{$entry};
1965: }
1966: }
1967: } else {
1.811 albertel 1968: my ($dom,$name) = ($entry=~m{___($match_domain)/($match_name)/(.*)___(\w+)$});
1.450 matthew 1969: my %temphash=($entry => $accesshash{$entry});
1.449 matthew 1970: if (&put('nohist_resevaldata',\%temphash,$dom,$name) eq 'ok') {
1971: delete $accesshash{$entry};
1972: }
1.185 www 1973: }
1.191 harris41 1974: }
1.352 www 1975: #
1976: # Roles
1977: # Reverse lookup of user roles for course faculty/staff and co-authorship
1978: #
1.800 albertel 1979: foreach my $entry (keys(%userrolehash)) {
1.351 www 1980: my ($role,$uname,$udom,$runame,$rudom,$rsec)=
1.349 www 1981: split(/\:/,$entry);
1982: if (&Apache::lonnet::put('nohist_userroles',
1.351 www 1983: { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
1.349 www 1984: $rudom,$runame) eq 'ok') {
1985: delete $userrolehash{$entry};
1986: }
1987: }
1.662 raeburn 1988: #
1989: # Reverse lookup of domain roles (dc, ad, li, sc, au)
1990: #
1991: my %domrolebuffer = ();
1992: foreach my $entry (keys %domainrolehash) {
1993: my ($role,$uname,$udom,$runame,$rudom,$rsec)=split/:/,$entry;
1994: if ($domrolebuffer{$rudom}) {
1995: $domrolebuffer{$rudom}.='&'.&escape($entry).
1996: '='.&escape($domainrolehash{$entry});
1997: } else {
1998: $domrolebuffer{$rudom}.=&escape($entry).
1999: '='.&escape($domainrolehash{$entry});
2000: }
2001: delete $domainrolehash{$entry};
2002: }
2003: foreach my $dom (keys(%domrolebuffer)) {
1.841 albertel 2004: my %servers = &get_servers($dom,'library');
2005: foreach my $tryserver (keys(%servers)) {
2006: unless (&reply('domroleput:'.$dom.':'.
2007: $domrolebuffer{$dom},$tryserver) eq 'ok') {
2008: &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
2009: }
1.662 raeburn 2010: }
2011: }
1.186 www 2012: $dumpcount++;
1.157 www 2013: }
2014:
2015: sub courselog {
2016: my $what=shift;
1.158 www 2017: $what=time.':'.$what;
1.620 albertel 2018: unless ($env{'request.course.id'}) { return ''; }
2019: $coursedombuf{$env{'request.course.id'}}=
2020: $env{'course.'.$env{'request.course.id'}.'.domain'};
2021: $coursenumbuf{$env{'request.course.id'}}=
2022: $env{'course.'.$env{'request.course.id'}.'.num'};
2023: $coursehombuf{$env{'request.course.id'}}=
2024: $env{'course.'.$env{'request.course.id'}.'.home'};
2025: $coursedescrbuf{$env{'request.course.id'}}=
2026: $env{'course.'.$env{'request.course.id'}.'.description'};
2027: $courseinstcodebuf{$env{'request.course.id'}}=
2028: $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'};
2029: $courseownerbuf{$env{'request.course.id'}}=
2030: $env{'course.'.$env{'request.course.id'}.'.internal.courseowner'};
1.741 raeburn 2031: $coursetypebuf{$env{'request.course.id'}}=
2032: $env{'course.'.$env{'request.course.id'}.'.type'};
1.620 albertel 2033: if (defined $courselogs{$env{'request.course.id'}}) {
2034: $courselogs{$env{'request.course.id'}}.='&'.$what;
1.157 www 2035: } else {
1.620 albertel 2036: $courselogs{$env{'request.course.id'}}.=$what;
1.157 www 2037: }
1.620 albertel 2038: if (length($courselogs{$env{'request.course.id'}})>4048) {
1.157 www 2039: &flushcourselogs();
2040: }
1.158 www 2041: }
2042:
2043: sub courseacclog {
2044: my $fnsymb=shift;
1.620 albertel 2045: unless ($env{'request.course.id'}) { return ''; }
2046: my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
1.657 albertel 2047: if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
1.187 www 2048: $what.=':POST';
1.583 matthew 2049: # FIXME: Probably ought to escape things....
1.800 albertel 2050: foreach my $key (keys(%env)) {
2051: if ($key=~/^form\.(.*)/) {
2052: $what.=':'.$1.'='.$env{$key};
1.158 www 2053: }
1.191 harris41 2054: }
1.583 matthew 2055: } elsif ($fnsymb =~ m:^/adm/searchcat:) {
2056: # FIXME: We should not be depending on a form parameter that someone
2057: # editing lonsearchcat.pm might change in the future.
1.620 albertel 2058: if ($env{'form.phase'} eq 'course_search') {
1.583 matthew 2059: $what.= ':POST';
2060: # FIXME: Probably ought to escape things....
2061: foreach my $element ('courseexp','crsfulltext','crsrelated',
2062: 'crsdiscuss') {
1.620 albertel 2063: $what.=':'.$element.'='.$env{'form.'.$element};
1.583 matthew 2064: }
2065: }
1.158 www 2066: }
2067: &courselog($what);
1.149 www 2068: }
2069:
1.185 www 2070: sub countacc {
2071: my $url=&declutter(shift);
1.458 matthew 2072: return if (! defined($url) || $url eq '');
1.620 albertel 2073: unless ($env{'request.course.id'}) { return ''; }
2074: $accesshash{$env{'request.course.id'}.'___'.$url.'___course'}=1;
1.281 www 2075: my $key=$$.$processmarker.'_'.$dumpcount.'___'.$url.'___count';
1.450 matthew 2076: $accesshash{$key}++;
1.185 www 2077: }
1.349 www 2078:
1.361 www 2079: sub linklog {
2080: my ($from,$to)=@_;
2081: $from=&declutter($from);
2082: $to=&declutter($to);
2083: $accesshash{$from.'___'.$to.'___comefrom'}=1;
2084: $accesshash{$to.'___'.$from.'___goto'}=1;
2085: }
2086:
1.349 www 2087: sub userrolelog {
2088: my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
1.661 raeburn 2089: if (($trole=~/^ca/) || ($trole=~/^aa/) ||
1.662 raeburn 2090: ($trole=~/^in/) || ($trole=~/^cc/) ||
1.661 raeburn 2091: ($trole=~/^ep/) || ($trole=~/^cr/) ||
2092: ($trole=~/^ta/)) {
1.350 www 2093: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2094: $userrolehash
2095: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
1.349 www 2096: =$tend.':'.$tstart;
1.662 raeburn 2097: }
2098: if (($trole=~/^dc/) || ($trole=~/^ad/) ||
2099: ($trole=~/^li/) || ($trole=~/^li/) ||
2100: ($trole=~/^au/) || ($trole=~/^dg/) ||
2101: ($trole=~/^sc/)) {
2102: my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
2103: $domainrolehash
2104: {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
2105: = $tend.':'.$tstart;
2106: }
1.351 www 2107: }
2108:
2109: sub get_course_adv_roles {
2110: my $cid=shift;
1.620 albertel 2111: $cid=$env{'request.course.id'} unless (defined($cid));
1.351 www 2112: my %coursehash=&coursedescription($cid);
1.470 www 2113: my %nothide=();
1.800 albertel 2114: foreach my $user (split(/\s*\,\s*/,$coursehash{'nothideprivileged'})) {
2115: $nothide{join(':',split(/[\@\:]/,$user))}=1;
1.470 www 2116: }
1.351 www 2117: my %returnhash=();
2118: my %dumphash=
2119: &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
2120: my $now=time;
1.800 albertel 2121: foreach my $entry (keys %dumphash) {
2122: my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
1.351 www 2123: if (($tstart) && ($tstart<0)) { next; }
2124: if (($tend) && ($tend<$now)) { next; }
2125: if (($tstart) && ($now<$tstart)) { next; }
1.800 albertel 2126: my ($role,$username,$domain,$section)=split(/\:/,$entry);
1.576 albertel 2127: if ($username eq '' || $domain eq '') { next; }
1.470 www 2128: if ((&privileged($username,$domain)) &&
2129: (!$nothide{$username.':'.$domain})) { next; }
1.656 albertel 2130: if ($role eq 'cr') { next; }
1.351 www 2131: my $key=&plaintext($role);
2132: if ($section) { $key.=' (Sec/Grp '.$section.')'; }
2133: if ($returnhash{$key}) {
2134: $returnhash{$key}.=','.$username.':'.$domain;
2135: } else {
2136: $returnhash{$key}=$username.':'.$domain;
2137: }
1.400 www 2138: }
2139: return %returnhash;
2140: }
2141:
2142: sub get_my_roles {
1.858 raeburn 2143: my ($uname,$udom,$context,$types,$roles,$roledoms)=@_;
1.620 albertel 2144: unless (defined($uname)) { $uname=$env{'user.name'}; }
2145: unless (defined($udom)) { $udom=$env{'user.domain'}; }
1.858 raeburn 2146: my %dumphash;
2147: if ($context eq 'userroles') {
2148: %dumphash = &dump('roles',$udom,$uname);
2149: } else {
2150: %dumphash=
1.400 www 2151: &dump('nohist_userroles',$udom,$uname);
1.858 raeburn 2152: }
1.400 www 2153: my %returnhash=();
2154: my $now=time;
1.800 albertel 2155: foreach my $entry (keys(%dumphash)) {
1.867 raeburn 2156: my ($role,$tend,$tstart);
2157: if ($context eq 'userroles') {
2158: ($role,$tend,$tstart)=split(/_/,$dumphash{$entry});
2159: } else {
2160: ($tend,$tstart)=split(/\:/,$dumphash{$entry});
2161: }
1.400 www 2162: if (($tstart) && ($tstart<0)) { next; }
1.832 raeburn 2163: my $status = 'active';
2164: if (($tend) && ($tend<$now)) {
2165: $status = 'previous';
2166: }
2167: if (($tstart) && ($now<$tstart)) {
2168: $status = 'future';
2169: }
2170: if (ref($types) eq 'ARRAY') {
2171: if (!grep(/^\Q$status\E$/,@{$types})) {
2172: next;
2173: }
2174: } else {
2175: if ($status ne 'active') {
2176: next;
2177: }
2178: }
1.867 raeburn 2179: my ($rolecode,$username,$domain,$section,$area);
2180: if ($context eq 'userroles') {
2181: ($area,$rolecode) = split(/_/,$entry);
2182: (undef,$domain,$username,$section) = split(/\//,$area);
2183: } else {
2184: ($role,$username,$domain,$section) = split(/\:/,$entry);
2185: }
1.832 raeburn 2186: if (ref($roledoms) eq 'ARRAY') {
2187: if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
2188: next;
2189: }
2190: }
2191: if (ref($roles) eq 'ARRAY') {
2192: if (!grep(/^\Q$role\E$/,@{$roles})) {
2193: next;
2194: }
1.867 raeburn 2195: }
1.400 www 2196: $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
1.832 raeburn 2197: }
1.373 www 2198: return %returnhash;
1.399 www 2199: }
2200:
2201: # ----------------------------------------------------- Frontpage Announcements
2202: #
2203: #
2204:
2205: sub postannounce {
2206: my ($server,$text)=@_;
1.844 albertel 2207: unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
1.399 www 2208: unless ($text=~/\w/) { $text=''; }
2209: return &reply('setannounce:'.&escape($text),$server);
2210: }
2211:
2212: sub getannounce {
1.448 albertel 2213:
2214: if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
1.399 www 2215: my $announcement='';
1.800 albertel 2216: while (my $line = <$fh>) { $announcement .= $line; }
1.448 albertel 2217: close($fh);
1.399 www 2218: if ($announcement=~/\w/) {
2219: return
2220: '<table bgcolor="#FF5555" cellpadding="5" cellspacing="3">'.
1.518 albertel 2221: '<tr><td bgcolor="#FFFFFF"><tt>'.$announcement.'</tt></td></tr></table>';
1.399 www 2222: } else {
2223: return '';
2224: }
2225: } else {
2226: return '';
2227: }
1.351 www 2228: }
1.353 www 2229:
2230: # ---------------------------------------------------------- Course ID routines
2231: # Deal with domain's nohist_courseid.db files
2232: #
2233:
2234: sub courseidput {
2235: my ($domain,$what,$coursehome)=@_;
2236: return &reply('courseidput:'.$domain.':'.$what,$coursehome);
2237: }
2238:
2239: sub courseiddump {
1.791 raeburn 2240: my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
1.353 www 2241: my %returnhash=();
1.355 www 2242: unless ($domfilter) { $domfilter=''; }
1.845 albertel 2243: my %libserv = &all_library();
2244: foreach my $tryserver (keys(%libserv)) {
2245: if ( ( $hostidflag == 1
2246: && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
2247: || (!defined($hostidflag)) ) {
2248:
2249: if ($domfilter eq ''
2250: || (&host_domain($tryserver) eq $domfilter)) {
1.800 albertel 2251: foreach my $line (
1.844 albertel 2252: split(/\&/,&reply('courseiddump:'.&host_domain($tryserver).':'.
1.571 raeburn 2253: $sincefilter.':'.&escape($descfilter).':'.
1.791 raeburn 2254: &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
1.354 www 2255: $tryserver))) {
1.800 albertel 2256: my ($key,$value)=split(/\=/,$line,2);
1.506 raeburn 2257: if (($key) && ($value)) {
1.516 raeburn 2258: $returnhash{&unescape($key)}=$value;
1.506 raeburn 2259: }
1.353 www 2260: }
2261: }
2262: }
2263: }
2264: return %returnhash;
2265: }
2266:
1.658 raeburn 2267: # ---------------------------------------------------------- DC e-mail
1.662 raeburn 2268:
2269: sub dcmailput {
1.685 raeburn 2270: my ($domain,$msgid,$message,$server)=@_;
1.662 raeburn 2271: my $status = &Apache::lonnet::critical(
1.740 www 2272: 'dcmailput:'.$domain.':'.&escape($msgid).'='.
2273: &escape($message),$server);
1.662 raeburn 2274: return $status;
2275: }
2276:
1.658 raeburn 2277: sub dcmaildump {
2278: my ($dom,$startdate,$enddate,$senders) = @_;
1.685 raeburn 2279: my %returnhash=();
1.846 albertel 2280:
2281: if (defined(&domain($dom,'primary'))) {
1.685 raeburn 2282: my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
2283: &escape($enddate).':';
2284: my @esc_senders=map { &escape($_)} @$senders;
2285: $cmd.=&escape(join('&',@esc_senders));
1.846 albertel 2286: foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
1.800 albertel 2287: my ($key,$value) = split(/\=/,$line,2);
1.685 raeburn 2288: if (($key) && ($value)) {
2289: $returnhash{&unescape($key)} = &unescape($value);
1.658 raeburn 2290: }
2291: }
2292: }
2293: return %returnhash;
2294: }
1.662 raeburn 2295: # ---------------------------------------------------------- Domain roles
2296:
2297: sub get_domain_roles {
2298: my ($dom,$roles,$startdate,$enddate)=@_;
2299: if (undef($startdate) || $startdate eq '') {
2300: $startdate = '.';
2301: }
2302: if (undef($enddate) || $enddate eq '') {
2303: $enddate = '.';
2304: }
2305: my $rolelist = join(':',@{$roles});
2306: my %personnel = ();
1.841 albertel 2307:
2308: my %servers = &get_servers($dom,'library');
2309: foreach my $tryserver (keys(%servers)) {
2310: %{$personnel{$tryserver}}=();
2311: foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
2312: &escape($startdate).':'.
2313: &escape($enddate).':'.
2314: &escape($rolelist), $tryserver))) {
2315: my ($key,$value) = split(/\=/,$line,2);
2316: if (($key) && ($value)) {
2317: $personnel{$tryserver}{&unescape($key)} = &unescape($value);
2318: }
2319: }
1.662 raeburn 2320: }
2321: return %personnel;
2322: }
1.658 raeburn 2323:
1.149 www 2324: # ----------------------------------------------------------- Check out an item
2325:
1.504 albertel 2326: sub get_first_access {
2327: my ($type,$argsymb)=@_;
1.790 albertel 2328: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2329: if ($argsymb) { $symb=$argsymb; }
2330: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2331: if ($type eq 'map') {
2332: $res=&symbread($map);
2333: } else {
2334: $res=$symb;
2335: }
2336: my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
2337: return $times{"$courseid\0$res"};
1.504 albertel 2338: }
2339:
2340: sub set_first_access {
2341: my ($type)=@_;
1.790 albertel 2342: my ($symb,$courseid,$udom,$uname)=&whichuser();
1.504 albertel 2343: my ($map,$id,$res)=&decode_symb($symb);
1.588 albertel 2344: if ($type eq 'map') {
2345: $res=&symbread($map);
2346: } else {
2347: $res=$symb;
2348: }
2349: my $firstaccess=&get_first_access($type,$symb);
1.505 albertel 2350: if (!$firstaccess) {
1.588 albertel 2351: return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
1.505 albertel 2352: }
2353: return 'already_set';
1.504 albertel 2354: }
2355:
1.149 www 2356: sub checkout {
2357: my ($symb,$tuname,$tudom,$tcrsid)=@_;
2358: my $now=time;
2359: my $lonhost=$perlvar{'lonHostID'};
2360: my $infostr=&escape(
1.234 www 2361: 'CHECKOUTTOKEN&'.
1.149 www 2362: $tuname.'&'.
2363: $tudom.'&'.
2364: $tcrsid.'&'.
2365: $symb.'&'.
2366: $now.'&'.$ENV{'REMOTE_ADDR'});
2367: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 2368: if ($token=~/^error\:/) {
1.672 albertel 2369: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2370: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
2371: "</font>");
2372: return '';
2373: }
2374:
1.149 www 2375: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
2376: $token=~tr/a-z/A-Z/;
2377:
1.153 www 2378: my %infohash=('resource.0.outtoken' => $token,
2379: 'resource.0.checkouttime' => $now,
2380: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 2381:
2382: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2383: return '';
1.151 www 2384: } else {
1.672 albertel 2385: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2386: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
2387: "</font>");
1.149 www 2388: }
2389:
2390: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2391: &escape('Checkout '.$infostr.' - '.
2392: $token)) ne 'ok') {
2393: return '';
1.151 www 2394: } else {
1.672 albertel 2395: &logthis("<font color=\"blue\">WARNING: ".
1.151 www 2396: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
2397: "</font>");
1.149 www 2398: }
1.151 www 2399: return $token;
1.149 www 2400: }
2401:
2402: # ------------------------------------------------------------ Check in an item
2403:
2404: sub checkin {
2405: my $token=shift;
1.150 www 2406: my $now=time;
2407: my ($ta,$tb,$lonhost)=split(/\*/,$token);
2408: $lonhost=~tr/A-Z/a-z/;
1.838 albertel 2409: my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
1.150 www 2410: $dtoken=~s/\W/\_/g;
1.234 www 2411: my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
1.150 www 2412: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
2413:
1.154 www 2414: unless (($tuname) && ($tudom)) {
2415: &logthis('Check in '.$token.' ('.$dtoken.') failed');
2416: return '';
2417: }
2418:
2419: unless (&allowed('mgr',$tcrsid)) {
2420: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
1.620 albertel 2421: $env{'user.name'}.' - '.$env{'user.domain'});
1.154 www 2422: return '';
2423: }
2424:
1.153 www 2425: my %infohash=('resource.0.intoken' => $token,
2426: 'resource.0.checkintime' => $now,
2427: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 2428:
2429: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
2430: return '';
2431: }
2432:
2433: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
2434: &escape('Checkin - '.$token)) ne 'ok') {
2435: return '';
2436: }
2437:
2438: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 2439: }
2440:
2441: # --------------------------------------------- Set Expire Date for Spreadsheet
2442:
2443: sub expirespread {
2444: my ($uname,$udom,$stype,$usymb)=@_;
1.620 albertel 2445: my $cid=$env{'request.course.id'};
1.110 www 2446: if ($cid) {
2447: my $now=time;
2448: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
1.620 albertel 2449: return &reply('put:'.$env{'course.'.$cid.'.domain'}.':'.
2450: $env{'course.'.$cid.'.num'}.
1.110 www 2451: ':nohist_expirationdates:'.
2452: &escape($key).'='.$now,
1.620 albertel 2453: $env{'course.'.$cid.'.home'})
1.110 www 2454: }
2455: return 'ok';
1.14 www 2456: }
2457:
1.109 www 2458: # ----------------------------------------------------- Devalidate Spreadsheets
2459:
2460: sub devalidate {
1.325 www 2461: my ($symb,$uname,$udom)=@_;
1.620 albertel 2462: my $cid=$env{'request.course.id'};
1.109 www 2463: if ($cid) {
1.391 matthew 2464: # delete the stored spreadsheets for
2465: # - the student level sheet of this user in course's homespace
2466: # - the assessment level sheet for this resource
2467: # for this user in user's homespace
1.553 albertel 2468: # - current conditional state info
1.325 www 2469: my $key=$uname.':'.$udom.':';
1.109 www 2470: my $status=
1.299 matthew 2471: &del('nohist_calculatedsheets',
1.391 matthew 2472: [$key.'studentcalc:'],
1.620 albertel 2473: $env{'course.'.$cid.'.domain'},
2474: $env{'course.'.$cid.'.num'})
1.133 albertel 2475: .' '.
2476: &del('nohist_calculatedsheets_'.$cid,
1.391 matthew 2477: [$key.'assesscalc:'.$symb],$udom,$uname);
1.109 www 2478: unless ($status eq 'ok ok') {
2479: &logthis('Could not devalidate spreadsheet '.
1.325 www 2480: $uname.' at '.$udom.' for '.
1.109 www 2481: $symb.': '.$status);
1.133 albertel 2482: }
1.553 albertel 2483: &delenv('user.state.'.$cid);
1.109 www 2484: }
2485: }
2486:
1.265 albertel 2487: sub get_scalar {
2488: my ($string,$end) = @_;
2489: my $value;
2490: if ($$string =~ s/^([^&]*?)($end)/$2/) {
2491: $value = $1;
2492: } elsif ($$string =~ s/^([^&]*?)&//) {
2493: $value = $1;
2494: }
2495: return &unescape($value);
2496: }
2497:
2498: sub array2str {
2499: my (@array) = @_;
2500: my $result=&arrayref2str(\@array);
2501: $result=~s/^__ARRAY_REF__//;
2502: $result=~s/__END_ARRAY_REF__$//;
2503: return $result;
2504: }
2505:
1.204 albertel 2506: sub arrayref2str {
2507: my ($arrayref) = @_;
1.265 albertel 2508: my $result='__ARRAY_REF__';
1.204 albertel 2509: foreach my $elem (@$arrayref) {
1.265 albertel 2510: if(ref($elem) eq 'ARRAY') {
2511: $result.=&arrayref2str($elem).'&';
2512: } elsif(ref($elem) eq 'HASH') {
2513: $result.=&hashref2str($elem).'&';
2514: } elsif(ref($elem)) {
2515: #print("Got a ref of ".(ref($elem))." skipping.");
1.204 albertel 2516: } else {
2517: $result.=&escape($elem).'&';
2518: }
2519: }
2520: $result=~s/\&$//;
1.265 albertel 2521: $result .= '__END_ARRAY_REF__';
1.204 albertel 2522: return $result;
2523: }
2524:
1.168 albertel 2525: sub hash2str {
1.204 albertel 2526: my (%hash) = @_;
2527: my $result=&hashref2str(\%hash);
1.265 albertel 2528: $result=~s/^__HASH_REF__//;
2529: $result=~s/__END_HASH_REF__$//;
1.204 albertel 2530: return $result;
2531: }
2532:
2533: sub hashref2str {
2534: my ($hashref)=@_;
1.265 albertel 2535: my $result='__HASH_REF__';
1.800 albertel 2536: foreach my $key (sort(keys(%$hashref))) {
2537: if (ref($key) eq 'ARRAY') {
2538: $result.=&arrayref2str($key).'=';
2539: } elsif (ref($key) eq 'HASH') {
2540: $result.=&hashref2str($key).'=';
2541: } elsif (ref($key)) {
1.265 albertel 2542: $result.='=';
1.800 albertel 2543: #print("Got a ref of ".(ref($key))." skipping.");
1.204 albertel 2544: } else {
1.800 albertel 2545: if ($key) {$result.=&escape($key).'=';} else { last; }
1.204 albertel 2546: }
2547:
1.800 albertel 2548: if(ref($hashref->{$key}) eq 'ARRAY') {
2549: $result.=&arrayref2str($hashref->{$key}).'&';
2550: } elsif(ref($hashref->{$key}) eq 'HASH') {
2551: $result.=&hashref2str($hashref->{$key}).'&';
2552: } elsif(ref($hashref->{$key})) {
1.265 albertel 2553: $result.='&';
1.800 albertel 2554: #print("Got a ref of ".(ref($hashref->{$key}))." skipping.");
1.204 albertel 2555: } else {
1.800 albertel 2556: $result.=&escape($hashref->{$key}).'&';
1.204 albertel 2557: }
2558: }
1.168 albertel 2559: $result=~s/\&$//;
1.265 albertel 2560: $result .= '__END_HASH_REF__';
1.168 albertel 2561: return $result;
2562: }
2563:
2564: sub str2hash {
1.265 albertel 2565: my ($string)=@_;
2566: my ($hash)=&str2hashref('__HASH_REF__'.$string.'__END_HASH_REF__');
2567: return %$hash;
2568: }
2569:
2570: sub str2hashref {
1.168 albertel 2571: my ($string) = @_;
1.265 albertel 2572:
2573: my %hash;
2574:
2575: if($string !~ /^__HASH_REF__/) {
2576: if (! ($string eq '' || !defined($string))) {
2577: $hash{'error'}='Not hash reference';
2578: }
2579: return (\%hash, $string);
2580: }
2581:
2582: $string =~ s/^__HASH_REF__//;
2583:
2584: while($string !~ /^__END_HASH_REF__/) {
2585: #key
2586: my $key='';
2587: if($string =~ /^__HASH_REF__/) {
2588: ($key, $string)=&str2hashref($string);
2589: if(defined($key->{'error'})) {
2590: $hash{'error'}='Bad data';
2591: return (\%hash, $string);
2592: }
2593: } elsif($string =~ /^__ARRAY_REF__/) {
2594: ($key, $string)=&str2arrayref($string);
2595: if($key->[0] eq 'Array reference error') {
2596: $hash{'error'}='Bad data';
2597: return (\%hash, $string);
2598: }
2599: } else {
2600: $string =~ s/^(.*?)=//;
1.267 albertel 2601: $key=&unescape($1);
1.265 albertel 2602: }
2603: $string =~ s/^=//;
2604:
2605: #value
2606: my $value='';
2607: if($string =~ /^__HASH_REF__/) {
2608: ($value, $string)=&str2hashref($string);
2609: if(defined($value->{'error'})) {
2610: $hash{'error'}='Bad data';
2611: return (\%hash, $string);
2612: }
2613: } elsif($string =~ /^__ARRAY_REF__/) {
2614: ($value, $string)=&str2arrayref($string);
2615: if($value->[0] eq 'Array reference error') {
2616: $hash{'error'}='Bad data';
2617: return (\%hash, $string);
2618: }
2619: } else {
2620: $value=&get_scalar(\$string,'__END_HASH_REF__');
2621: }
2622: $string =~ s/^&//;
2623:
2624: $hash{$key}=$value;
1.204 albertel 2625: }
1.265 albertel 2626:
2627: $string =~ s/^__END_HASH_REF__//;
2628:
2629: return (\%hash, $string);
1.204 albertel 2630: }
2631:
2632: sub str2array {
1.265 albertel 2633: my ($string)=@_;
2634: my ($array)=&str2arrayref('__ARRAY_REF__'.$string.'__END_ARRAY_REF__');
2635: return @$array;
2636: }
2637:
2638: sub str2arrayref {
1.204 albertel 2639: my ($string) = @_;
1.265 albertel 2640: my @array;
2641:
2642: if($string !~ /^__ARRAY_REF__/) {
2643: if (! ($string eq '' || !defined($string))) {
2644: $array[0]='Array reference error';
2645: }
2646: return (\@array, $string);
2647: }
2648:
2649: $string =~ s/^__ARRAY_REF__//;
2650:
2651: while($string !~ /^__END_ARRAY_REF__/) {
2652: my $value='';
2653: if($string =~ /^__HASH_REF__/) {
2654: ($value, $string)=&str2hashref($string);
2655: if(defined($value->{'error'})) {
2656: $array[0] ='Array reference error';
2657: return (\@array, $string);
2658: }
2659: } elsif($string =~ /^__ARRAY_REF__/) {
2660: ($value, $string)=&str2arrayref($string);
2661: if($value->[0] eq 'Array reference error') {
2662: $array[0] ='Array reference error';
2663: return (\@array, $string);
2664: }
2665: } else {
2666: $value=&get_scalar(\$string,'__END_ARRAY_REF__');
2667: }
2668: $string =~ s/^&//;
2669:
2670: push(@array, $value);
1.191 harris41 2671: }
1.265 albertel 2672:
2673: $string =~ s/^__END_ARRAY_REF__//;
2674:
2675: return (\@array, $string);
1.168 albertel 2676: }
2677:
1.167 albertel 2678: # -------------------------------------------------------------------Temp Store
2679:
1.168 albertel 2680: sub tmpreset {
2681: my ($symb,$namespace,$domain,$stuname) = @_;
2682: if (!$symb) {
2683: $symb=&symbread();
1.620 albertel 2684: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2685: }
2686: $symb=escape($symb);
2687:
1.620 albertel 2688: if (!$namespace) { $namespace=$env{'request.state'}; }
1.168 albertel 2689: $namespace=~s/\//\_/g;
2690: $namespace=~s/\W//g;
2691:
1.620 albertel 2692: if (!$domain) { $domain=$env{'user.domain'}; }
2693: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2694: if ($domain eq 'public' && $stuname eq 'public') {
2695: $stuname=$ENV{'REMOTE_ADDR'};
2696: }
1.168 albertel 2697: my $path=$perlvar{'lonDaemons'}.'/tmp';
2698: my %hash;
2699: if (tie(%hash,'GDBM_File',
2700: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2701: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2702: foreach my $key (keys %hash) {
1.180 albertel 2703: if ($key=~ /:$symb/) {
1.168 albertel 2704: delete($hash{$key});
2705: }
2706: }
2707: }
2708: }
2709:
1.167 albertel 2710: sub tmpstore {
1.168 albertel 2711: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2712:
2713: if (!$symb) {
2714: $symb=&symbread();
1.620 albertel 2715: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2716: }
2717: $symb=escape($symb);
2718:
2719: if (!$namespace) {
2720: # I don't think we would ever want to store this for a course.
2721: # it seems this will only be used if we don't have a course.
1.620 albertel 2722: #$namespace=$env{'request.course.id'};
1.168 albertel 2723: #if (!$namespace) {
1.620 albertel 2724: $namespace=$env{'request.state'};
1.168 albertel 2725: #}
2726: }
2727: $namespace=~s/\//\_/g;
2728: $namespace=~s/\W//g;
1.620 albertel 2729: if (!$domain) { $domain=$env{'user.domain'}; }
2730: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2731: if ($domain eq 'public' && $stuname eq 'public') {
2732: $stuname=$ENV{'REMOTE_ADDR'};
2733: }
1.168 albertel 2734: my $now=time;
2735: my %hash;
2736: my $path=$perlvar{'lonDaemons'}.'/tmp';
2737: if (tie(%hash,'GDBM_File',
2738: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2739: &GDBM_WRCREAT(),0640)) {
1.168 albertel 2740: $hash{"version:$symb"}++;
2741: my $version=$hash{"version:$symb"};
2742: my $allkeys='';
2743: foreach my $key (keys(%$storehash)) {
2744: $allkeys.=$key.':';
1.591 albertel 2745: $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
1.168 albertel 2746: }
2747: $hash{"$version:$symb:timestamp"}=$now;
2748: $allkeys.='timestamp';
2749: $hash{"$version:keys:$symb"}=$allkeys;
2750: if (untie(%hash)) {
2751: return 'ok';
2752: } else {
2753: return "error:$!";
2754: }
2755: } else {
2756: return "error:$!";
2757: }
2758: }
1.167 albertel 2759:
1.168 albertel 2760: # -----------------------------------------------------------------Temp Restore
1.167 albertel 2761:
1.168 albertel 2762: sub tmprestore {
2763: my ($symb,$namespace,$domain,$stuname) = @_;
1.167 albertel 2764:
1.168 albertel 2765: if (!$symb) {
2766: $symb=&symbread();
1.620 albertel 2767: if (!$symb) { $symb= $env{'request.url'}; }
1.168 albertel 2768: }
2769: $symb=escape($symb);
2770:
1.620 albertel 2771: if (!$namespace) { $namespace=$env{'request.state'}; }
1.591 albertel 2772:
1.620 albertel 2773: if (!$domain) { $domain=$env{'user.domain'}; }
2774: if (!$stuname) { $stuname=$env{'user.name'}; }
1.591 albertel 2775: if ($domain eq 'public' && $stuname eq 'public') {
2776: $stuname=$ENV{'REMOTE_ADDR'};
2777: }
1.168 albertel 2778: my %returnhash;
2779: $namespace=~s/\//\_/g;
2780: $namespace=~s/\W//g;
2781: my %hash;
2782: my $path=$perlvar{'lonDaemons'}.'/tmp';
2783: if (tie(%hash,'GDBM_File',
2784: $path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
1.256 albertel 2785: &GDBM_READER(),0640)) {
1.168 albertel 2786: my $version=$hash{"version:$symb"};
2787: $returnhash{'version'}=$version;
2788: my $scope;
2789: for ($scope=1;$scope<=$version;$scope++) {
2790: my $vkeys=$hash{"$scope:keys:$symb"};
2791: my @keys=split(/:/,$vkeys);
2792: my $key;
2793: $returnhash{"$scope:keys"}=$vkeys;
2794: foreach $key (@keys) {
1.591 albertel 2795: $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
2796: $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
1.167 albertel 2797: }
2798: }
1.168 albertel 2799: if (!(untie(%hash))) {
2800: return "error:$!";
2801: }
2802: } else {
2803: return "error:$!";
2804: }
2805: return %returnhash;
1.167 albertel 2806: }
2807:
1.9 www 2808: # ----------------------------------------------------------------------- Store
2809:
2810: sub store {
1.124 www 2811: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2812: my $home='';
2813:
1.168 albertel 2814: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2815:
1.213 www 2816: $symb=&symbclean($symb);
1.122 albertel 2817: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2818:
1.620 albertel 2819: if (!$domain) { $domain=$env{'user.domain'}; }
2820: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2821:
2822: &devalidate($symb,$stuname,$domain);
1.109 www 2823:
2824: $symb=escape($symb);
1.187 www 2825: if (!$namespace) {
1.620 albertel 2826: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2827: return '';
2828: }
2829: }
1.620 albertel 2830: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2831:
2832: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2833: $$storehash{'host'}=$perlvar{'lonHostID'};
2834:
1.12 www 2835: my $namevalue='';
1.800 albertel 2836: foreach my $key (keys(%$storehash)) {
2837: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 2838: }
1.12 www 2839: $namevalue=~s/\&$//;
1.187 www 2840: &courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
1.124 www 2841: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 2842: }
2843:
1.47 www 2844: # -------------------------------------------------------------- Critical Store
2845:
2846: sub cstore {
1.124 www 2847: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
2848: my $home='';
2849:
1.168 albertel 2850: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2851:
1.213 www 2852: $symb=&symbclean($symb);
1.122 albertel 2853: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 2854:
1.620 albertel 2855: if (!$domain) { $domain=$env{'user.domain'}; }
2856: if (!$stuname) { $stuname=$env{'user.name'}; }
1.325 www 2857:
2858: &devalidate($symb,$stuname,$domain);
1.109 www 2859:
2860: $symb=escape($symb);
1.187 www 2861: if (!$namespace) {
1.620 albertel 2862: unless ($namespace=$env{'request.course.id'}) {
1.187 www 2863: return '';
2864: }
2865: }
1.620 albertel 2866: if (!$home) { $home=$env{'user.home'}; }
1.447 www 2867:
2868: $$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
2869: $$storehash{'host'}=$perlvar{'lonHostID'};
1.122 albertel 2870:
1.47 www 2871: my $namevalue='';
1.800 albertel 2872: foreach my $key (keys(%$storehash)) {
2873: $namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
1.191 harris41 2874: }
1.47 www 2875: $namevalue=~s/\&$//;
1.187 www 2876: &courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
1.188 www 2877: return critical
2878: ("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 2879: }
2880:
1.9 www 2881: # --------------------------------------------------------------------- Restore
2882:
2883: sub restore {
1.124 www 2884: my ($symb,$namespace,$domain,$stuname) = @_;
2885: my $home='';
2886:
1.168 albertel 2887: if ($stuname) { $home=&homeserver($stuname,$domain); }
1.124 www 2888:
1.122 albertel 2889: if (!$symb) {
2890: unless ($symb=escape(&symbread())) { return ''; }
2891: } else {
1.213 www 2892: $symb=&escape(&symbclean($symb));
1.122 albertel 2893: }
1.188 www 2894: if (!$namespace) {
1.620 albertel 2895: unless ($namespace=$env{'request.course.id'}) {
1.188 www 2896: return '';
2897: }
2898: }
1.620 albertel 2899: if (!$domain) { $domain=$env{'user.domain'}; }
2900: if (!$stuname) { $stuname=$env{'user.name'}; }
2901: if (!$home) { $home=$env{'user.home'}; }
1.122 albertel 2902: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
2903:
1.12 www 2904: my %returnhash=();
1.800 albertel 2905: foreach my $line (split(/\&/,$answer)) {
2906: my ($name,$value)=split(/\=/,$line);
1.591 albertel 2907: $returnhash{&unescape($name)}=&thaw_unescape($value);
1.191 harris41 2908: }
1.75 www 2909: my $version;
2910: for ($version=1;$version<=$returnhash{'version'};$version++) {
1.800 albertel 2911: foreach my $item (split(/\:/,$returnhash{$version.':keys'})) {
2912: $returnhash{$item}=$returnhash{$version.':'.$item};
1.191 harris41 2913: }
1.75 www 2914: }
1.13 www 2915: return %returnhash;
1.34 www 2916: }
2917:
2918: # ---------------------------------------------------------- Course Description
2919:
2920: sub coursedescription {
1.731 albertel 2921: my ($courseid,$args)=@_;
1.34 www 2922: $courseid=~s/^\///;
1.49 www 2923: $courseid=~s/\_/\//g;
1.34 www 2924: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 2925: my $chome=&homeserver($cnum,$cdomain);
1.302 albertel 2926: my $normalid=$cdomain.'_'.$cnum;
2927: # need to always cache even if we get errors otherwise we keep
2928: # trying and trying and trying to get the course description.
2929: my %envhash=();
2930: my %returnhash=();
1.731 albertel 2931:
2932: my $expiretime=600;
2933: if ($env{'request.course.id'} eq $normalid) {
2934: $expiretime=120;
2935: }
2936:
2937: my $prefix='course.'.$cdomain.'_'.$cnum.'.';
2938: if (!$args->{'freshen_cache'}
2939: && ((time-$env{$prefix.'last_cache'}) < $expiretime) ) {
2940: foreach my $key (keys(%env)) {
2941: next if ($key !~ /^\Q$prefix\E(.*)/);
2942: my ($setting) = $1;
2943: $returnhash{$setting} = $env{$key};
2944: }
2945: return %returnhash;
2946: }
2947:
2948: # get the data agin
2949: if (!$args->{'one_time'}) {
2950: $envhash{'course.'.$normalid.'.last_cache'}=time;
2951: }
1.811 albertel 2952:
1.34 www 2953: if ($chome ne 'no_host') {
1.302 albertel 2954: %returnhash=&dump('environment',$cdomain,$cnum);
1.129 albertel 2955: if (!exists($returnhash{'con_lost'})) {
2956: $returnhash{'home'}= $chome;
2957: $returnhash{'domain'} = $cdomain;
2958: $returnhash{'num'} = $cnum;
1.741 raeburn 2959: if (!defined($returnhash{'type'})) {
2960: $returnhash{'type'} = 'Course';
2961: }
1.130 albertel 2962: while (my ($name,$value) = each %returnhash) {
1.53 www 2963: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 2964: }
1.270 www 2965: $returnhash{'url'}=&clutter($returnhash{'url'});
1.34 www 2966: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.620 albertel 2967: $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.60 www 2968: $envhash{'course.'.$normalid.'.home'}=$chome;
2969: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
2970: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.34 www 2971: }
2972: }
1.731 albertel 2973: if (!$args->{'one_time'}) {
2974: &appenv(%envhash);
2975: }
1.302 albertel 2976: return %returnhash;
1.461 www 2977: }
2978:
2979: # -------------------------------------------------See if a user is privileged
2980:
2981: sub privileged {
2982: my ($username,$domain)=@_;
2983: my $rolesdump=&reply("dump:$domain:$username:roles",
2984: &homeserver($username,$domain));
2985: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return 0; }
2986: my $now=time;
2987: if ($rolesdump ne '') {
1.800 albertel 2988: foreach my $entry (split(/&/,$rolesdump)) {
2989: if ($entry!~/^rolesdef_/) {
2990: my ($area,$role)=split(/=/,$entry);
1.461 www 2991: $area=~s/\_\w\w$//;
2992: my ($trole,$tend,$tstart)=split(/_/,$role);
2993: if (($trole eq 'dc') || ($trole eq 'su')) {
2994: my $active=1;
2995: if ($tend) {
2996: if ($tend<$now) { $active=0; }
2997: }
2998: if ($tstart) {
2999: if ($tstart>$now) { $active=0; }
3000: }
3001: if ($active) { return 1; }
3002: }
3003: }
3004: }
3005: }
3006: return 0;
1.9 www 3007: }
1.1 albertel 3008:
1.103 harris41 3009: # -------------------------------------------------------- Get user privileges
1.11 www 3010:
3011: sub rolesinit {
3012: my ($domain,$username,$authhost)=@_;
3013: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 3014: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 3015: my %allroles=();
1.678 raeburn 3016: my %allgroups=();
1.11 www 3017: my $now=time;
1.743 albertel 3018: my %userroles = ('user.login.time' => $now);
1.678 raeburn 3019: my $group_privs;
1.11 www 3020:
3021: if ($rolesdump ne '') {
1.800 albertel 3022: foreach my $entry (split(/&/,$rolesdump)) {
3023: if ($entry!~/^rolesdef_/) {
3024: my ($area,$role)=split(/=/,$entry);
1.587 albertel 3025: $area=~s/\_\w\w$//;
1.678 raeburn 3026: my ($trole,$tend,$tstart,$group_privs);
1.587 albertel 3027: if ($role=~/^cr/) {
1.807 albertel 3028: if ($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|) {
3029: ($trole,my $trest)=($role=~m|^(cr/$match_domain/$match_username/[a-zA-Z0-9]+)_(.*)$|);
1.655 albertel 3030: ($tend,$tstart)=split('_',$trest);
3031: } else {
3032: $trole=$role;
3033: }
1.678 raeburn 3034: } elsif ($role =~ m|^gr/|) {
3035: ($trole,$tend,$tstart) = split(/_/,$role);
3036: ($trole,$group_privs) = split(/\//,$trole);
3037: $group_privs = &unescape($group_privs);
1.587 albertel 3038: } else {
3039: ($trole,$tend,$tstart)=split(/_/,$role);
3040: }
1.743 albertel 3041: my %new_role = &set_arearole($trole,$area,$tstart,$tend,$domain,
3042: $username);
3043: @userroles{keys(%new_role)} = @new_role{keys(%new_role)};
1.567 raeburn 3044: if (($tend!=0) && ($tend<$now)) { $trole=''; }
3045: if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
1.11 www 3046: if (($area ne '') && ($trole ne '')) {
1.347 albertel 3047: my $spec=$trole.'.'.$area;
3048: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
3049: if ($trole =~ /^cr\//) {
1.567 raeburn 3050: &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
1.678 raeburn 3051: } elsif ($trole eq 'gr') {
3052: &group_roleprivs(\%allgroups,$area,$group_privs,$tend,$tstart);
1.347 albertel 3053: } else {
1.567 raeburn 3054: &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
1.347 albertel 3055: }
1.12 www 3056: }
1.662 raeburn 3057: }
1.191 harris41 3058: }
1.743 albertel 3059: my ($author,$adv) = &set_userprivs(\%userroles,\%allroles,\%allgroups);
3060: $userroles{'user.adv'} = $adv;
3061: $userroles{'user.author'} = $author;
1.620 albertel 3062: $env{'user.adv'}=$adv;
1.11 www 3063: }
1.743 albertel 3064: return \%userroles;
1.11 www 3065: }
3066:
1.567 raeburn 3067: sub set_arearole {
3068: my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
3069: # log the associated role with the area
3070: &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
1.743 albertel 3071: return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
1.567 raeburn 3072: }
3073:
3074: sub custom_roleprivs {
3075: my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
3076: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
3077: my $homsvr=homeserver($rauthor,$rdomain);
1.838 albertel 3078: if (&hostname($homsvr) ne '') {
1.567 raeburn 3079: my ($rdummy,$roledef)=
3080: &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
3081: if (($rdummy ne 'con_lost') && ($roledef ne '')) {
3082: my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
3083: if (defined($syspriv)) {
3084: $$allroles{'cm./'}.=':'.$syspriv;
3085: $$allroles{$spec.'./'}.=':'.$syspriv;
3086: }
3087: if ($tdomain ne '') {
3088: if (defined($dompriv)) {
3089: $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
3090: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
3091: }
3092: if (($trest ne '') && (defined($coursepriv))) {
3093: $$allroles{'cm.'.$area}.=':'.$coursepriv;
3094: $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
3095: }
3096: }
3097: }
3098: }
3099: }
3100:
1.678 raeburn 3101: sub group_roleprivs {
3102: my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
3103: my $access = 1;
3104: my $now = time;
3105: if (($tend!=0) && ($tend<$now)) { $access = 0; }
3106: if (($tstart!=0) && ($tstart>$now)) { $access=0; }
3107: if ($access) {
1.811 albertel 3108: my ($course,$group) = ($area =~ m|(/$match_domain/$match_courseid)/([^/]+)$|);
1.678 raeburn 3109: $$allgroups{$course}{$group} .=':'.$group_privs;
3110: }
3111: }
1.567 raeburn 3112:
3113: sub standard_roleprivs {
3114: my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
3115: if (defined($pr{$trole.':s'})) {
3116: $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
3117: $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
3118: }
3119: if ($tdomain ne '') {
3120: if (defined($pr{$trole.':d'})) {
3121: $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3122: $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
3123: }
3124: if (($trest ne '') && (defined($pr{$trole.':c'}))) {
3125: $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
3126: $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
3127: }
3128: }
3129: }
3130:
3131: sub set_userprivs {
1.678 raeburn 3132: my ($userroles,$allroles,$allgroups) = @_;
1.567 raeburn 3133: my $author=0;
3134: my $adv=0;
1.678 raeburn 3135: my %grouproles = ();
3136: if (keys(%{$allgroups}) > 0) {
3137: foreach my $role (keys %{$allroles}) {
1.681 raeburn 3138: my ($trole,$area,$sec,$extendedarea);
1.881 raeburn 3139: if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
1.678 raeburn 3140: $trole = $1;
3141: $area = $2;
1.681 raeburn 3142: $sec = $3;
3143: $extendedarea = $area.$sec;
3144: if (exists($$allgroups{$area})) {
3145: foreach my $group (keys(%{$$allgroups{$area}})) {
3146: my $spec = $trole.'.'.$extendedarea;
3147: $grouproles{$spec.'.'.$area.'/'.$group} =
3148: $$allgroups{$area}{$group};
1.678 raeburn 3149: }
3150: }
3151: }
3152: }
3153: }
1.800 albertel 3154: foreach my $group (keys(%grouproles)) {
3155: $$allroles{$group} = $grouproles{$group};
1.678 raeburn 3156: }
1.800 albertel 3157: foreach my $role (keys(%{$allroles})) {
3158: my %thesepriv;
3159: if (($role=~/^au/) || ($role=~/^ca/)) { $author=1; }
3160: foreach my $item (split(/:/,$$allroles{$role})) {
3161: if ($item ne '') {
3162: my ($privilege,$restrictions)=split(/&/,$item);
1.567 raeburn 3163: if ($restrictions eq '') {
3164: $thesepriv{$privilege}='F';
3165: } elsif ($thesepriv{$privilege} ne 'F') {
3166: $thesepriv{$privilege}.=$restrictions;
3167: }
3168: if ($thesepriv{'adv'} eq 'F') { $adv=1; }
3169: }
3170: }
3171: my $thesestr='';
1.800 albertel 3172: foreach my $priv (keys(%thesepriv)) {
3173: $thesestr.=':'.$priv.'&'.$thesepriv{$priv};
3174: }
3175: $userroles->{'user.priv.'.$role} = $thesestr;
1.567 raeburn 3176: }
3177: return ($author,$adv);
3178: }
3179:
1.12 www 3180: # --------------------------------------------------------------- get interface
3181:
3182: sub get {
1.131 albertel 3183: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3184: my $items='';
1.800 albertel 3185: foreach my $item (@$storearr) {
3186: $items.=&escape($item).'&';
1.191 harris41 3187: }
1.12 www 3188: $items=~s/\&$//;
1.620 albertel 3189: if (!$udomain) { $udomain=$env{'user.domain'}; }
3190: if (!$uname) { $uname=$env{'user.name'}; }
1.131 albertel 3191: my $uhome=&homeserver($uname,$udomain);
3192:
1.133 albertel 3193: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3194: my @pairs=split(/\&/,$rep);
1.273 albertel 3195: if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
3196: return @pairs;
3197: }
1.15 www 3198: my %returnhash=();
1.42 www 3199: my $i=0;
1.800 albertel 3200: foreach my $item (@$storearr) {
3201: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 3202: $i++;
1.191 harris41 3203: }
1.15 www 3204: return %returnhash;
1.27 www 3205: }
3206:
3207: # --------------------------------------------------------------- del interface
3208:
3209: sub del {
1.133 albertel 3210: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 3211: my $items='';
1.800 albertel 3212: foreach my $item (@$storearr) {
3213: $items.=&escape($item).'&';
1.191 harris41 3214: }
1.27 www 3215: $items=~s/\&$//;
1.620 albertel 3216: if (!$udomain) { $udomain=$env{'user.domain'}; }
3217: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3218: my $uhome=&homeserver($uname,$udomain);
3219:
3220: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 3221: }
3222:
3223: # -------------------------------------------------------------- dump interface
3224:
3225: sub dump {
1.755 albertel 3226: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
3227: if (!$udomain) { $udomain=$env{'user.domain'}; }
3228: if (!$uname) { $uname=$env{'user.name'}; }
3229: my $uhome=&homeserver($uname,$udomain);
3230: if ($regexp) {
3231: $regexp=&escape($regexp);
3232: } else {
3233: $regexp='.';
3234: }
3235: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3236: my @pairs=split(/\&/,$rep);
3237: my %returnhash=();
3238: foreach my $item (@pairs) {
3239: my ($key,$value)=split(/=/,$item,2);
3240: $key = &unescape($key);
3241: next if ($key =~ /^error: 2 /);
3242: $returnhash{$key}=&thaw_unescape($value);
3243: }
3244: return %returnhash;
1.407 www 3245: }
3246:
1.717 albertel 3247: # --------------------------------------------------------- dumpstore interface
3248:
3249: sub dumpstore {
3250: my ($namespace,$udomain,$uname,$regexp,$range)=@_;
1.822 albertel 3251: if (!$udomain) { $udomain=$env{'user.domain'}; }
3252: if (!$uname) { $uname=$env{'user.name'}; }
3253: my $uhome=&homeserver($uname,$udomain);
3254: if ($regexp) {
3255: $regexp=&escape($regexp);
3256: } else {
3257: $regexp='.';
3258: }
3259: my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
3260: my @pairs=split(/\&/,$rep);
3261: my %returnhash=();
3262: foreach my $item (@pairs) {
3263: my ($key,$value)=split(/=/,$item,2);
3264: next if ($key =~ /^error: 2 /);
3265: $returnhash{$key}=&thaw_unescape($value);
3266: }
3267: return %returnhash;
1.717 albertel 3268: }
3269:
1.407 www 3270: # -------------------------------------------------------------- keys interface
3271:
3272: sub getkeys {
3273: my ($namespace,$udomain,$uname)=@_;
1.620 albertel 3274: if (!$udomain) { $udomain=$env{'user.domain'}; }
3275: if (!$uname) { $uname=$env{'user.name'}; }
1.407 www 3276: my $uhome=&homeserver($uname,$udomain);
3277: my $rep=reply("keys:$udomain:$uname:$namespace",$uhome);
3278: my @keyarray=();
1.800 albertel 3279: foreach my $key (split(/\&/,$rep)) {
1.812 raeburn 3280: next if ($key =~ /^error: 2 /);
1.800 albertel 3281: push(@keyarray,&unescape($key));
1.407 www 3282: }
3283: return @keyarray;
1.318 matthew 3284: }
3285:
1.319 matthew 3286: # --------------------------------------------------------------- currentdump
3287: sub currentdump {
1.328 matthew 3288: my ($courseid,$sdom,$sname)=@_;
1.620 albertel 3289: $courseid = $env{'request.course.id'} if (! defined($courseid));
3290: $sdom = $env{'user.domain'} if (! defined($sdom));
3291: $sname = $env{'user.name'} if (! defined($sname));
1.326 matthew 3292: my $uhome = &homeserver($sname,$sdom);
3293: my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
1.318 matthew 3294: return if ($rep =~ /^(error:|no_such_host)/);
1.319 matthew 3295: #
1.318 matthew 3296: my %returnhash=();
1.319 matthew 3297: #
3298: if ($rep eq "unknown_cmd") {
3299: # an old lond will not know currentdump
3300: # Do a dump and make it look like a currentdump
1.822 albertel 3301: my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
1.319 matthew 3302: return if ($tmp[0] =~ /^(error:|no_such_host)/);
3303: my %hash = @tmp;
3304: @tmp=();
1.424 matthew 3305: %returnhash = %{&convert_dump_to_currentdump(\%hash)};
1.319 matthew 3306: } else {
3307: my @pairs=split(/\&/,$rep);
1.800 albertel 3308: foreach my $pair (@pairs) {
3309: my ($key,$value)=split(/=/,$pair,2);
1.319 matthew 3310: my ($symb,$param) = split(/:/,$key);
3311: $returnhash{&unescape($symb)}->{&unescape($param)} =
1.557 albertel 3312: &thaw_unescape($value);
1.319 matthew 3313: }
1.191 harris41 3314: }
1.12 www 3315: return %returnhash;
1.424 matthew 3316: }
3317:
3318: sub convert_dump_to_currentdump{
3319: my %hash = %{shift()};
3320: my %returnhash;
3321: # Code ripped from lond, essentially. The only difference
3322: # here is the unescaping done by lonnet::dump(). Conceivably
3323: # we might run in to problems with parameter names =~ /^v\./
3324: while (my ($key,$value) = each(%hash)) {
3325: my ($v,$symb,$param) = split(/:/,$key);
1.822 albertel 3326: $symb = &unescape($symb);
3327: $param = &unescape($param);
1.424 matthew 3328: next if ($v eq 'version' || $symb eq 'keys');
3329: next if (exists($returnhash{$symb}) &&
3330: exists($returnhash{$symb}->{$param}) &&
3331: $returnhash{$symb}->{'v.'.$param} > $v);
3332: $returnhash{$symb}->{$param}=$value;
3333: $returnhash{$symb}->{'v.'.$param}=$v;
3334: }
3335: #
3336: # Remove all of the keys in the hashes which keep track of
3337: # the version of the parameter.
3338: while (my ($symb,$param_hash) = each(%returnhash)) {
3339: # use a foreach because we are going to delete from the hash.
3340: foreach my $key (keys(%$param_hash)) {
3341: delete($param_hash->{$key}) if ($key =~ /^v\./);
3342: }
3343: }
3344: return \%returnhash;
1.12 www 3345: }
3346:
1.627 albertel 3347: # ------------------------------------------------------ critical inc interface
3348:
3349: sub cinc {
3350: return &inc(@_,'critical');
3351: }
3352:
1.449 matthew 3353: # --------------------------------------------------------------- inc interface
3354:
3355: sub inc {
1.627 albertel 3356: my ($namespace,$store,$udomain,$uname,$critical) = @_;
1.620 albertel 3357: if (!$udomain) { $udomain=$env{'user.domain'}; }
3358: if (!$uname) { $uname=$env{'user.name'}; }
1.449 matthew 3359: my $uhome=&homeserver($uname,$udomain);
3360: my $items='';
3361: if (! ref($store)) {
3362: # got a single value, so use that instead
3363: $items = &escape($store).'=&';
3364: } elsif (ref($store) eq 'SCALAR') {
3365: $items = &escape($$store).'=&';
3366: } elsif (ref($store) eq 'ARRAY') {
3367: $items = join('=&',map {&escape($_);} @{$store});
3368: } elsif (ref($store) eq 'HASH') {
3369: while (my($key,$value) = each(%{$store})) {
3370: $items.= &escape($key).'='.&escape($value).'&';
3371: }
3372: }
3373: $items=~s/\&$//;
1.627 albertel 3374: if ($critical) {
3375: return &critical("inc:$udomain:$uname:$namespace:$items",$uhome);
3376: } else {
3377: return &reply("inc:$udomain:$uname:$namespace:$items",$uhome);
3378: }
1.449 matthew 3379: }
3380:
1.12 www 3381: # --------------------------------------------------------------- put interface
3382:
3383: sub put {
1.134 albertel 3384: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3385: if (!$udomain) { $udomain=$env{'user.domain'}; }
3386: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3387: my $uhome=&homeserver($uname,$udomain);
1.12 www 3388: my $items='';
1.800 albertel 3389: foreach my $item (keys(%$storehash)) {
3390: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 3391: }
1.12 www 3392: $items=~s/\&$//;
1.134 albertel 3393: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 3394: }
3395:
1.631 albertel 3396: # ------------------------------------------------------------ newput interface
3397:
3398: sub newput {
3399: my ($namespace,$storehash,$udomain,$uname)=@_;
3400: if (!$udomain) { $udomain=$env{'user.domain'}; }
3401: if (!$uname) { $uname=$env{'user.name'}; }
3402: my $uhome=&homeserver($uname,$udomain);
3403: my $items='';
3404: foreach my $key (keys(%$storehash)) {
3405: $items.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
3406: }
3407: $items=~s/\&$//;
3408: return &reply("newput:$udomain:$uname:$namespace:$items",$uhome);
3409: }
3410:
3411: # --------------------------------------------------------- putstore interface
3412:
1.524 raeburn 3413: sub putstore {
1.715 albertel 3414: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
1.620 albertel 3415: if (!$udomain) { $udomain=$env{'user.domain'}; }
3416: if (!$uname) { $uname=$env{'user.name'}; }
1.524 raeburn 3417: my $uhome=&homeserver($uname,$udomain);
3418: my $items='';
1.715 albertel 3419: foreach my $key (keys(%$storehash)) {
3420: $items.= &escape($key).'='.&freeze_escape($storehash->{$key}).'&';
1.524 raeburn 3421: }
1.715 albertel 3422: $items=~s/\&$//;
1.716 albertel 3423: my $esc_symb=&escape($symb);
3424: my $esc_v=&escape($version);
1.715 albertel 3425: my $reply =
1.716 albertel 3426: &reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
1.715 albertel 3427: $uhome);
3428: if ($reply eq 'unknown_cmd') {
1.716 albertel 3429: # gfall back to way things use to be done
1.715 albertel 3430: return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
3431: $uname);
1.524 raeburn 3432: }
1.715 albertel 3433: return $reply;
3434: }
3435:
3436: sub old_putstore {
1.716 albertel 3437: my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
3438: if (!$udomain) { $udomain=$env{'user.domain'}; }
3439: if (!$uname) { $uname=$env{'user.name'}; }
3440: my $uhome=&homeserver($uname,$udomain);
3441: my %newstorehash;
1.800 albertel 3442: foreach my $item (keys(%$storehash)) {
3443: my $key = $version.':'.&escape($symb).':'.$item;
3444: $newstorehash{$key} = $storehash->{$item};
1.716 albertel 3445: }
3446: my $items='';
3447: my %allitems = ();
1.800 albertel 3448: foreach my $item (keys(%newstorehash)) {
3449: if ($item =~ m/^([^\:]+):([^\:]+):([^\:]+)$/) {
1.716 albertel 3450: my $key = $1.':keys:'.$2;
3451: $allitems{$key} .= $3.':';
3452: }
1.800 albertel 3453: $items.=$item.'='.&freeze_escape($newstorehash{$item}).'&';
1.716 albertel 3454: }
1.800 albertel 3455: foreach my $item (keys(%allitems)) {
3456: $allitems{$item} =~ s/\:$//;
3457: $items.= $item.'='.$allitems{$item}.'&';
1.716 albertel 3458: }
3459: $items=~s/\&$//;
3460: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.524 raeburn 3461: }
3462:
1.47 www 3463: # ------------------------------------------------------ critical put interface
3464:
3465: sub cput {
1.134 albertel 3466: my ($namespace,$storehash,$udomain,$uname)=@_;
1.620 albertel 3467: if (!$udomain) { $udomain=$env{'user.domain'}; }
3468: if (!$uname) { $uname=$env{'user.name'}; }
1.134 albertel 3469: my $uhome=&homeserver($uname,$udomain);
1.47 www 3470: my $items='';
1.800 albertel 3471: foreach my $item (keys(%$storehash)) {
3472: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.191 harris41 3473: }
1.47 www 3474: $items=~s/\&$//;
1.134 albertel 3475: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3476: }
3477:
3478: # -------------------------------------------------------------- eget interface
3479:
3480: sub eget {
1.133 albertel 3481: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 3482: my $items='';
1.800 albertel 3483: foreach my $item (@$storearr) {
3484: $items.=&escape($item).'&';
1.191 harris41 3485: }
1.12 www 3486: $items=~s/\&$//;
1.620 albertel 3487: if (!$udomain) { $udomain=$env{'user.domain'}; }
3488: if (!$uname) { $uname=$env{'user.name'}; }
1.133 albertel 3489: my $uhome=&homeserver($uname,$udomain);
3490: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 3491: my @pairs=split(/\&/,$rep);
3492: my %returnhash=();
1.42 www 3493: my $i=0;
1.800 albertel 3494: foreach my $item (@$storearr) {
3495: $returnhash{$item}=&thaw_unescape($pairs[$i]);
1.42 www 3496: $i++;
1.191 harris41 3497: }
1.12 www 3498: return %returnhash;
3499: }
3500:
1.667 albertel 3501: # ------------------------------------------------------------ tmpput interface
3502: sub tmpput {
1.802 raeburn 3503: my ($storehash,$server,$context)=@_;
1.667 albertel 3504: my $items='';
1.800 albertel 3505: foreach my $item (keys(%$storehash)) {
3506: $items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
1.667 albertel 3507: }
3508: $items=~s/\&$//;
1.802 raeburn 3509: if (defined($context)) {
3510: $items .= ':'.&escape($context);
3511: }
1.667 albertel 3512: return &reply("tmpput:$items",$server);
3513: }
3514:
3515: # ------------------------------------------------------------ tmpget interface
3516: sub tmpget {
1.688 albertel 3517: my ($token,$server)=@_;
3518: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3519: my $rep=&reply("tmpget:$token",$server);
1.667 albertel 3520: my %returnhash;
3521: foreach my $item (split(/\&/,$rep)) {
3522: my ($key,$value)=split(/=/,$item);
3523: $returnhash{&unescape($key)}=&thaw_unescape($value);
3524: }
3525: return %returnhash;
3526: }
3527:
1.688 albertel 3528: # ------------------------------------------------------------ tmpget interface
3529: sub tmpdel {
3530: my ($token,$server)=@_;
3531: if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
3532: return &reply("tmpdel:$token",$server);
3533: }
3534:
1.765 albertel 3535: # -------------------------------------------------- portfolio access checking
3536:
3537: sub portfolio_access {
1.766 albertel 3538: my ($requrl) = @_;
1.765 albertel 3539: my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
3540: my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
1.814 raeburn 3541: if ($result) {
3542: my %setters;
3543: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3544: my ($startblock,$endblock) =
3545: &Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
3546: if ($startblock && $endblock) {
3547: return 'B';
3548: }
3549: } else {
3550: my ($startblock,$endblock) =
3551: &Apache::loncommon::blockcheck(\%setters,'port');
3552: if ($startblock && $endblock) {
3553: return 'B';
3554: }
3555: }
3556: }
1.765 albertel 3557: if ($result eq 'ok') {
1.766 albertel 3558: return 'F';
1.765 albertel 3559: } elsif ($result =~ /^[^:]+:guest_/) {
1.766 albertel 3560: return 'A';
1.765 albertel 3561: }
1.766 albertel 3562: return '';
1.765 albertel 3563: }
3564:
3565: sub get_portfolio_access {
1.767 albertel 3566: my ($udom,$unum,$file_name,$group,$access_hash) = @_;
3567:
3568: if (!ref($access_hash)) {
3569: my $current_perms = &get_portfile_permissions($udom,$unum);
3570: my %access_controls = &get_access_controls($current_perms,$group,
3571: $file_name);
3572: $access_hash = $access_controls{$file_name};
3573: }
3574:
1.765 albertel 3575: my ($public,$guest,@domains,@users,@courses,@groups);
3576: my $now = time;
3577: if (ref($access_hash) eq 'HASH') {
3578: foreach my $key (keys(%{$access_hash})) {
3579: my ($num,$scope,$end,$start) = ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
3580: if ($start > $now) {
3581: next;
3582: }
3583: if ($end && $end<$now) {
3584: next;
3585: }
3586: if ($scope eq 'public') {
3587: $public = $key;
3588: last;
3589: } elsif ($scope eq 'guest') {
3590: $guest = $key;
3591: } elsif ($scope eq 'domains') {
3592: push(@domains,$key);
3593: } elsif ($scope eq 'users') {
3594: push(@users,$key);
3595: } elsif ($scope eq 'course') {
3596: push(@courses,$key);
3597: } elsif ($scope eq 'group') {
3598: push(@groups,$key);
3599: }
3600: }
3601: if ($public) {
3602: return 'ok';
3603: }
3604: if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
3605: if ($guest) {
3606: return $guest;
3607: }
3608: } else {
3609: if (@domains > 0) {
3610: foreach my $domkey (@domains) {
3611: if (ref($access_hash->{$domkey}{'dom'}) eq 'ARRAY') {
3612: if (grep(/^\Q$env{'user.domain'}\E$/,@{$access_hash->{$domkey}{'dom'}})) {
3613: return 'ok';
3614: }
3615: }
3616: }
3617: }
3618: if (@users > 0) {
3619: foreach my $userkey (@users) {
1.865 raeburn 3620: if (ref($access_hash->{$userkey}{'users'}) eq 'ARRAY') {
3621: foreach my $item (@{$access_hash->{$userkey}{'users'}}) {
3622: if (ref($item) eq 'HASH') {
3623: if (($item->{'uname'} eq $env{'user.name'}) &&
3624: ($item->{'udom'} eq $env{'user.domain'})) {
3625: return 'ok';
3626: }
3627: }
3628: }
3629: }
1.765 albertel 3630: }
3631: }
3632: my %roleshash;
3633: my @courses_and_groups = @courses;
3634: push(@courses_and_groups,@groups);
3635: if (@courses_and_groups > 0) {
3636: my (%allgroups,%allroles);
3637: my ($start,$end,$role,$sec,$group);
3638: foreach my $envkey (%env) {
1.811 albertel 3639: if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 3640: my $cid = $2.'_'.$3;
3641: if ($1 eq 'gr') {
3642: $group = $4;
3643: $allgroups{$cid}{$group} = $env{$envkey};
3644: } else {
3645: if ($4 eq '') {
3646: $sec = 'none';
3647: } else {
3648: $sec = $4;
3649: }
3650: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3651: }
1.811 albertel 3652: } elsif ($envkey =~ m-^user\.role\./cr/($match_domain/$match_username/\w*)./($match_domain)/($match_courseid)/?([^/]*)$-) {
1.765 albertel 3653: my $cid = $2.'_'.$3;
3654: if ($4 eq '') {
3655: $sec = 'none';
3656: } else {
3657: $sec = $4;
3658: }
3659: $allroles{$cid}{$1}{$sec} = $env{$envkey};
3660: }
3661: }
3662: if (keys(%allroles) == 0) {
3663: return;
3664: }
3665: foreach my $key (@courses_and_groups) {
3666: my %content = %{$$access_hash{$key}};
3667: my $cnum = $content{'number'};
3668: my $cdom = $content{'domain'};
3669: my $cid = $cdom.'_'.$cnum;
3670: if (!exists($allroles{$cid})) {
3671: next;
3672: }
3673: foreach my $role_id (keys(%{$content{'roles'}})) {
3674: my @sections = @{$content{'roles'}{$role_id}{'section'}};
3675: my @groups = @{$content{'roles'}{$role_id}{'group'}};
3676: my @status = @{$content{'roles'}{$role_id}{'access'}};
3677: my @roles = @{$content{'roles'}{$role_id}{'role'}};
3678: foreach my $role (keys(%{$allroles{$cid}})) {
3679: if ((grep/^all$/,@roles) || (grep/^\Q$role\E$/,@roles)) {
3680: foreach my $sec (keys(%{$allroles{$cid}{$role}})) {
3681: if (&course_group_datechecker($allroles{$cid}{$role}{$sec},$now,\@status) eq 'ok') {
3682: if (grep/^all$/,@sections) {
3683: return 'ok';
3684: } else {
3685: if (grep/^$sec$/,@sections) {
3686: return 'ok';
3687: }
3688: }
3689: }
3690: }
3691: if (keys(%{$allgroups{$cid}}) == 0) {
3692: if (grep/^none$/,@groups) {
3693: return 'ok';
3694: }
3695: } else {
3696: if (grep/^all$/,@groups) {
3697: return 'ok';
3698: }
3699: foreach my $group (keys(%{$allgroups{$cid}})) {
3700: if (grep/^$group$/,@groups) {
3701: return 'ok';
3702: }
3703: }
3704: }
3705: }
3706: }
3707: }
3708: }
3709: }
3710: if ($guest) {
3711: return $guest;
3712: }
3713: }
3714: }
3715: return;
3716: }
3717:
3718: sub course_group_datechecker {
3719: my ($dates,$now,$status) = @_;
3720: my ($start,$end) = split(/\./,$dates);
3721: if (!$start && !$end) {
3722: return 'ok';
3723: }
3724: if (grep/^active$/,@{$status}) {
3725: if (((!$start) || ($start && $start <= $now)) && ((!$end) || ($end && $end >= $now))) {
3726: return 'ok';
3727: }
3728: }
3729: if (grep/^previous$/,@{$status}) {
3730: if ($end > $now ) {
3731: return 'ok';
3732: }
3733: }
3734: if (grep/^future$/,@{$status}) {
3735: if ($start > $now) {
3736: return 'ok';
3737: }
3738: }
3739: return;
3740: }
3741:
3742: sub parse_portfolio_url {
3743: my ($url) = @_;
3744:
3745: my ($type,$udom,$unum,$group,$file_name);
3746:
1.823 albertel 3747: if ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_username)/portfolio(/.+)$-) {
1.765 albertel 3748: $type = 1;
3749: $udom = $1;
3750: $unum = $2;
3751: $file_name = $3;
1.823 albertel 3752: } elsif ($url =~ m-^/*(?:uploaded|editupload)/($match_domain)/($match_courseid)/groups/([^/]+)/portfolio/(.+)$-) {
1.765 albertel 3753: $type = 2;
3754: $udom = $1;
3755: $unum = $2;
3756: $group = $3;
3757: $file_name = $3.'/'.$4;
3758: }
3759: if (wantarray) {
3760: return ($type,$udom,$unum,$file_name,$group);
3761: }
3762: return $type;
3763: }
3764:
3765: sub is_portfolio_url {
3766: my ($url) = @_;
3767: return scalar(&parse_portfolio_url($url));
3768: }
3769:
1.798 raeburn 3770: sub is_portfolio_file {
3771: my ($file) = @_;
1.820 raeburn 3772: if (($file =~ /^portfolio/) || ($file =~ /^groups\/\w+\/portfolio/)) {
1.798 raeburn 3773: return 1;
3774: }
3775: return;
3776: }
3777:
3778:
1.341 www 3779: # ---------------------------------------------- Custom access rule evaluation
3780:
3781: sub customaccess {
3782: my ($priv,$uri)=@_;
1.807 albertel 3783: my ($urole,$urealm)=split(/\./,$env{'request.role'},2);
1.819 www 3784: my (undef,$udom,$ucrs,$usec)=split(/\//,$urealm);
1.807 albertel 3785: $udom = &LONCAPA::clean_domain($udom);
3786: $ucrs = &LONCAPA::clean_username($ucrs);
1.341 www 3787: my $access=0;
1.800 albertel 3788: foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
3789: my ($effect,$realm,$role)=split(/\:/,$right);
1.343 www 3790: if ($role) {
3791: if ($role ne $urole) { next; }
3792: }
1.800 albertel 3793: foreach my $scope (split(/\s*\,\s*/,$realm)) {
3794: my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
1.343 www 3795: if ($tdom) {
3796: if ($tdom ne $udom) { next; }
3797: }
3798: if ($tcrs) {
3799: if ($tcrs ne $ucrs) { next; }
3800: }
3801: if ($tsec) {
3802: if ($tsec ne $usec) { next; }
3803: }
3804: $access=($effect eq 'allow');
3805: last;
1.342 www 3806: }
1.402 bowersj2 3807: if ($realm eq '' && $role eq '') {
3808: $access=($effect eq 'allow');
3809: }
1.341 www 3810: }
3811: return $access;
3812: }
3813:
1.103 harris41 3814: # ------------------------------------------------- Check for a user privilege
1.12 www 3815:
3816: sub allowed {
1.810 raeburn 3817: my ($priv,$uri,$symb,$role)=@_;
1.705 albertel 3818: my $ver_orguri=$uri;
1.439 www 3819: $uri=&deversion($uri);
1.152 www 3820: my $orguri=$uri;
1.52 www 3821: $uri=&declutter($uri);
1.809 raeburn 3822:
1.810 raeburn 3823: if ($priv eq 'evb') {
3824: # Evade communication block restrictions for specified role in a course
3825: if ($env{'user.priv.'.$role} =~/evb\&([^\:]*)/) {
3826: return $1;
3827: } else {
3828: return;
3829: }
3830: }
3831:
1.620 albertel 3832: if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
1.54 www 3833: # Free bre access to adm and meta resources
1.775 albertel 3834: if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg|bulletinboard)$}))
1.769 albertel 3835: || (($uri=~/\.meta$/) && ($uri!~m|^uploaded/|) ))
3836: && ($priv eq 'bre')) {
1.14 www 3837: return 'F';
1.159 www 3838: }
3839:
1.545 banghart 3840: # Free bre access to user's own portfolio contents
1.714 raeburn 3841: my ($space,$domain,$name,@dir)=split('/',$uri);
1.647 raeburn 3842: if (($space=~/^(uploaded|editupload)$/) && ($env{'user.name'} eq $name) &&
1.714 raeburn 3843: ($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
1.814 raeburn 3844: my %setters;
3845: my ($startblock,$endblock) =
3846: &Apache::loncommon::blockcheck(\%setters,'port');
3847: if ($startblock && $endblock) {
3848: return 'B';
3849: } else {
3850: return 'F';
3851: }
1.545 banghart 3852: }
3853:
1.762 raeburn 3854: # bre access to group portfolio for rgf priv in group, or mdg or vcg in course.
1.714 raeburn 3855: if (($space=~/^(uploaded|editupload)$/) && ($dir[0] eq 'groups')
3856: && ($dir[2] eq 'portfolio') && ($priv eq 'bre')) {
3857: if (exists($env{'request.course.id'})) {
3858: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3859: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3860: if (($domain eq $cdom) && ($name eq $cnum)) {
3861: my $courseprivid=$env{'request.course.id'};
3862: $courseprivid=~s/\_/\//;
3863: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid
3864: .'/'.$dir[1]} =~/rgf\&([^\:]*)/) {
3865: return $1;
1.762 raeburn 3866: } else {
3867: if ($env{'request.course.sec'}) {
3868: $courseprivid.='/'.$env{'request.course.sec'};
3869: }
3870: if ($env{'user.priv.'.$env{'request.role'}.'./'.
3871: $courseprivid} =~/(mdg|vcg)\&([^\:]*)/) {
3872: return $2;
3873: }
1.714 raeburn 3874: }
3875: }
3876: }
3877: }
3878:
1.159 www 3879: # Free bre to public access
3880:
3881: if ($priv eq 'bre') {
1.238 www 3882: my $copyright=&metadata($uri,'copyright');
1.620 albertel 3883: if (($copyright eq 'public') && (!$env{'request.course.id'})) {
1.301 www 3884: return 'F';
3885: }
1.238 www 3886: if ($copyright eq 'priv') {
3887: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3888: unless (($env{'user.name'} eq $2) && ($env{'user.domain'} eq $1)) {
1.238 www 3889: return '';
3890: }
3891: }
3892: if ($copyright eq 'domain') {
3893: $uri=~/([^\/]+)\/([^\/]+)\//;
1.620 albertel 3894: unless (($env{'user.domain'} eq $1) ||
3895: ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1)) {
1.238 www 3896: return '';
3897: }
1.262 matthew 3898: }
1.620 albertel 3899: if ($env{'request.role'}=~ /li\.\//) {
1.262 matthew 3900: # Library role, so allow browsing of resources in this domain.
3901: return 'F';
1.238 www 3902: }
1.341 www 3903: if ($copyright eq 'custom') {
3904: unless (&customaccess($priv,$uri)) { return ''; }
3905: }
1.14 www 3906: }
1.264 matthew 3907: # Domain coordinator is trying to create a course
1.620 albertel 3908: if (($priv eq 'ccc') && ($env{'request.role'} =~ /^dc\./)) {
1.264 matthew 3909: # uri is the requested domain in this case.
3910: # comparison to 'request.role.domain' shows if the user has selected
1.678 raeburn 3911: # a role of dc for the domain in question.
1.620 albertel 3912: return 'F' if ($uri eq $env{'request.role.domain'});
1.264 matthew 3913: }
1.29 www 3914:
1.52 www 3915: my $thisallowed='';
3916: my $statecond=0;
3917: my $courseprivid='';
3918:
3919: # Course
3920:
1.620 albertel 3921: if ($env{'user.priv.'.$env{'request.role'}.'./'}=~/\Q$priv\E\&([^\:]*)/) {
1.52 www 3922: $thisallowed.=$1;
3923: }
1.29 www 3924:
1.52 www 3925: # Domain
3926:
1.620 albertel 3927: if ($env{'user.priv.'.$env{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1.479 albertel 3928: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3929: $thisallowed.=$1;
3930: }
1.52 www 3931:
3932: # Course: uri itself is a course
1.66 www 3933: my $courseuri=$uri;
3934: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 3935: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 3936:
1.620 albertel 3937: if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
1.479 albertel 3938: =~/\Q$priv\E\&([^\:]*)/) {
1.12 www 3939: $thisallowed.=$1;
3940: }
1.29 www 3941:
1.665 albertel 3942: # URI is an uploaded document for this course, default permissions don't matter
1.611 albertel 3943: # not allowing 'edit' access (editupload) to uploaded course docs
1.492 albertel 3944: if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
1.665 albertel 3945: $thisallowed='';
1.671 raeburn 3946: my ($match)=&is_on_map($uri);
3947: if ($match) {
3948: if ($env{'user.priv.'.$env{'request.role'}.'./'}
3949: =~/\Q$priv\E\&([^\:]*)/) {
3950: $thisallowed.=$1;
3951: }
3952: } else {
1.705 albertel 3953: my $refuri = $env{'httpref.'.$orguri} || $env{'httpref.'.$ver_orguri};
1.671 raeburn 3954: if ($refuri) {
3955: if ($refuri =~ m|^/adm/|) {
1.669 raeburn 3956: $thisallowed='F';
1.671 raeburn 3957: } else {
3958: $refuri=&declutter($refuri);
3959: my ($match) = &is_on_map($refuri);
3960: if ($match) {
3961: $thisallowed='F';
3962: }
1.669 raeburn 3963: }
1.671 raeburn 3964: }
3965: }
1.314 www 3966: }
1.492 albertel 3967:
1.766 albertel 3968: if ($priv eq 'bre'
3969: && $thisallowed ne 'F'
3970: && $thisallowed ne '2'
3971: && &is_portfolio_url($uri)) {
3972: $thisallowed = &portfolio_access($uri);
3973: }
3974:
1.52 www 3975: # Full access at system, domain or course-wide level? Exit.
1.29 www 3976:
3977: if ($thisallowed=~/F/) {
3978: return 'F';
3979: }
3980:
1.52 www 3981: # If this is generating or modifying users, exit with special codes
1.29 www 3982:
1.643 www 3983: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:caa:'=~/\:\Q$priv\E\:/) {
3984: if (($priv eq 'cca') || ($priv eq 'caa')) {
1.642 albertel 3985: my ($audom,$auname)=split('/',$uri);
1.643 www 3986: # no author name given, so this just checks on the general right to make a co-author in this domain
3987: unless ($auname) { return $thisallowed; }
3988: # an author name is given, so we are about to actually make a co-author for a certain account
1.642 albertel 3989: if (($auname ne $env{'user.name'} && $env{'request.role'} !~ /^dc\./) ||
3990: (($audom ne $env{'user.domain'} && $env{'request.role'} !~ /^dc\./) &&
3991: ($audom ne $env{'request.role.domain'}))) { return ''; }
3992: }
1.52 www 3993: return $thisallowed;
3994: }
3995: #
1.103 harris41 3996: # Gathered so far: system, domain and course wide privileges
1.52 www 3997: #
3998: # Course: See if uri or referer is an individual resource that is part of
3999: # the course
4000:
1.620 albertel 4001: if ($env{'request.course.id'}) {
1.232 www 4002:
1.620 albertel 4003: $courseprivid=$env{'request.course.id'};
4004: if ($env{'request.course.sec'}) {
4005: $courseprivid.='/'.$env{'request.course.sec'};
1.52 www 4006: }
4007: $courseprivid=~s/\_/\//;
4008: my $checkreferer=1;
1.232 www 4009: my ($match,$cond)=&is_on_map($uri);
4010: if ($match) {
4011: $statecond=$cond;
1.620 albertel 4012: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4013: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4014: $thisallowed.=$1;
4015: $checkreferer=0;
4016: }
1.29 www 4017: }
1.83 www 4018:
1.148 www 4019: if ($checkreferer) {
1.620 albertel 4020: my $refuri=$env{'httpref.'.$orguri};
1.148 www 4021: unless ($refuri) {
1.800 albertel 4022: foreach my $key (keys(%env)) {
4023: if ($key=~/^httpref\..*\*/) {
4024: my $pattern=$key;
1.156 www 4025: $pattern=~s/^httpref\.\/res\///;
1.148 www 4026: $pattern=~s/\*/\[\^\/\]\+/g;
4027: $pattern=~s/\//\\\//g;
1.152 www 4028: if ($orguri=~/$pattern/) {
1.800 albertel 4029: $refuri=$env{$key};
1.148 www 4030: }
4031: }
1.191 harris41 4032: }
1.148 www 4033: }
1.232 www 4034:
1.148 www 4035: if ($refuri) {
1.152 www 4036: $refuri=&declutter($refuri);
1.232 www 4037: my ($match,$cond)=&is_on_map($refuri);
4038: if ($match) {
4039: my $refstatecond=$cond;
1.620 albertel 4040: if ($env{'user.priv.'.$env{'request.role'}.'./'.$courseprivid}
1.479 albertel 4041: =~/\Q$priv\E\&([^\:]*)/) {
1.52 www 4042: $thisallowed.=$1;
1.53 www 4043: $uri=$refuri;
4044: $statecond=$refstatecond;
1.52 www 4045: }
4046: }
1.148 www 4047: }
1.29 www 4048: }
1.52 www 4049: }
1.29 www 4050:
1.52 www 4051: #
1.103 harris41 4052: # Gathered now: all privileges that could apply, and condition number
1.52 www 4053: #
4054: #
4055: # Full or no access?
4056: #
1.29 www 4057:
1.52 www 4058: if ($thisallowed=~/F/) {
4059: return 'F';
4060: }
1.29 www 4061:
1.52 www 4062: unless ($thisallowed) {
4063: return '';
4064: }
1.29 www 4065:
1.52 www 4066: # Restrictions exist, deal with them
4067: #
4068: # C:according to course preferences
4069: # R:according to resource settings
4070: # L:unless locked
4071: # X:according to user session state
4072: #
4073:
4074: # Possibly locked functionality, check all courses
1.54 www 4075: # Locks might take effect only after 10 minutes cache expiration for other
4076: # courses, and 2 minutes for current course
1.52 www 4077:
4078: my $envkey;
4079: if ($thisallowed=~/L/) {
1.620 albertel 4080: foreach $envkey (keys %env) {
1.54 www 4081: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
4082: my $courseid=$2;
4083: my $roleid=$1.'.'.$2;
1.92 www 4084: $courseid=~s/^\///;
1.54 www 4085: my $expiretime=600;
1.620 albertel 4086: if ($env{'request.role'} eq $roleid) {
1.54 www 4087: $expiretime=120;
4088: }
4089: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
4090: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1.620 albertel 4091: if ((time-$env{$prefix.'last_cache'})>$expiretime) {
1.731 albertel 4092: &coursedescription($courseid,{'freshen_cache' => 1});
1.54 www 4093: }
1.620 albertel 4094: if (($env{$prefix.'res.'.$uri.'.lock.sections'}=~/\,\Q$csec\E\,/)
4095: || ($env{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
4096: if ($env{$prefix.'res.'.$uri.'.lock.expire'}>time) {
4097: &log($env{'user.domain'},$env{'user.name'},
4098: $env{'user.home'},
1.57 www 4099: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 4100: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4101: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4102: return '';
4103: }
4104: }
1.620 albertel 4105: if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
4106: || ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
4107: if ($env{'priv.'.$priv.'.lock.expire'}>time) {
4108: &log($env{'user.domain'},$env{'user.name'},
4109: $env{'user.home'},
1.57 www 4110: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 4111: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.620 albertel 4112: $env{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 4113: return '';
4114: }
4115: }
4116: }
1.29 www 4117: }
1.52 www 4118: }
4119:
4120: #
4121: # Rest of the restrictions depend on selected course
4122: #
4123:
1.620 albertel 4124: unless ($env{'request.course.id'}) {
1.766 albertel 4125: if ($thisallowed eq 'A') {
4126: return 'A';
1.814 raeburn 4127: } elsif ($thisallowed eq 'B') {
4128: return 'B';
1.766 albertel 4129: } else {
4130: return '1';
4131: }
1.52 www 4132: }
1.29 www 4133:
1.52 www 4134: #
4135: # Now user is definitely in a course
4136: #
1.53 www 4137:
4138:
4139: # Course preferences
4140:
4141: if ($thisallowed=~/C/) {
1.620 albertel 4142: my $rolecode=(split(/\./,$env{'request.role'}))[0];
4143: my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
4144: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
1.479 albertel 4145: =~/\Q$rolecode\E/) {
1.689 albertel 4146: if ($priv ne 'pch') {
4147: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4148: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
4149: $env{'request.course.id'});
4150: }
1.237 www 4151: return '';
4152: }
4153:
1.620 albertel 4154: if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
1.479 albertel 4155: =~/\Q$unamedom\E/) {
1.689 albertel 4156: if ($priv ne 'pch') {
4157: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
4158: 'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
4159: $env{'request.course.id'});
4160: }
1.54 www 4161: return '';
4162: }
1.53 www 4163: }
4164:
4165: # Resource preferences
4166:
4167: if ($thisallowed=~/R/) {
1.620 albertel 4168: my $rolecode=(split(/\./,$env{'request.role'}))[0];
1.479 albertel 4169: if (&metadata($uri,'roledeny')=~/\Q$rolecode\E/) {
1.689 albertel 4170: if ($priv ne 'pch') {
4171: &logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
4172: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
4173: }
4174: return '';
1.54 www 4175: }
1.53 www 4176: }
1.30 www 4177:
1.246 www 4178: # Restricted by state or randomout?
1.30 www 4179:
1.52 www 4180: if ($thisallowed=~/X/) {
1.620 albertel 4181: if ($env{'acc.randomout'}) {
1.579 albertel 4182: if (!$symb) { $symb=&symbread($uri,1); }
1.620 albertel 4183: if (($symb) && ($env{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
1.248 www 4184: return '';
4185: }
1.247 www 4186: }
4187: if (&condval($statecond)) {
1.52 www 4188: return '2';
4189: } else {
4190: return '';
4191: }
4192: }
1.30 www 4193:
1.766 albertel 4194: if ($thisallowed eq 'A') {
4195: return 'A';
1.814 raeburn 4196: } elsif ($thisallowed eq 'B') {
4197: return 'B';
1.766 albertel 4198: }
1.52 www 4199: return 'F';
1.232 www 4200: }
4201:
1.710 albertel 4202: sub split_uri_for_cond {
4203: my $uri=&deversion(&declutter(shift));
4204: my @uriparts=split(/\//,$uri);
4205: my $filename=pop(@uriparts);
4206: my $pathname=join('/',@uriparts);
4207: return ($pathname,$filename);
4208: }
1.232 www 4209: # --------------------------------------------------- Is a resource on the map?
4210:
4211: sub is_on_map {
1.710 albertel 4212: my ($pathname,$filename) = &split_uri_for_cond(shift);
1.289 bowersj2 4213: #Trying to find the conditional for the file
1.620 albertel 4214: my $match=($env{'acc.res.'.$env{'request.course.id'}.'.'.$pathname}=~
1.289 bowersj2 4215: /\&\Q$filename\E\:([\d\|]+)\&/);
1.232 www 4216: if ($match) {
1.289 bowersj2 4217: return (1,$1);
4218: } else {
1.434 www 4219: return (0,0);
1.289 bowersj2 4220: }
1.12 www 4221: }
4222:
1.427 www 4223: # --------------------------------------------------------- Get symb from alias
4224:
4225: sub get_symb_from_alias {
4226: my $symb=shift;
4227: my ($map,$resid,$url)=&decode_symb($symb);
4228: # Already is a symb
4229: if ($url) { return $symb; }
4230: # Must be an alias
4231: my $aliassymb='';
4232: my %bighash;
1.620 albertel 4233: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.427 www 4234: &GDBM_READER(),0640)) {
4235: my $rid=$bighash{'mapalias_'.$symb};
4236: if ($rid) {
4237: my ($mapid,$resid)=split(/\./,$rid);
1.429 albertel 4238: $aliassymb=&encode_symb($bighash{'map_id_'.$mapid},
4239: $resid,$bighash{'src_'.$rid});
1.427 www 4240: }
4241: untie %bighash;
4242: }
4243: return $aliassymb;
4244: }
4245:
1.12 www 4246: # ----------------------------------------------------------------- Define Role
4247:
4248: sub definerole {
4249: if (allowed('mcr','/')) {
4250: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.800 albertel 4251: foreach my $role (split(':',$sysrole)) {
4252: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4253: if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
4254: if ($pr{'cr:s'}=~/\Q$crole\E\&/) {
4255: if ($pr{'cr:s'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4256: return "refused:s:$crole&$cqual";
4257: }
4258: }
1.191 harris41 4259: }
1.800 albertel 4260: foreach my $role (split(':',$domrole)) {
4261: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4262: if ($pr{'cr:d'}!~/\Q$crole\E/) { return "refused:d:$crole"; }
4263: if ($pr{'cr:d'}=~/\Q$crole\E\&/) {
4264: if ($pr{'cr:d'}!~/\Q$crole\W\&\w*\Q$cqual\E/) {
1.21 www 4265: return "refused:d:$crole&$cqual";
4266: }
4267: }
1.191 harris41 4268: }
1.800 albertel 4269: foreach my $role (split(':',$courole)) {
4270: my ($crole,$cqual)=split(/\&/,$role);
1.479 albertel 4271: if ($pr{'cr:c'}!~/\Q$crole\E/) { return "refused:c:$crole"; }
4272: if ($pr{'cr:c'}=~/\Q$crole\E\&/) {
4273: if ($pr{'cr:c'}!~/\Q$crole\E\&\w*\Q$cqual\E/) {
1.21 www 4274: return "refused:c:$crole&$cqual";
4275: }
4276: }
1.191 harris41 4277: }
1.620 albertel 4278: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
4279: "$env{'user.domain'}:$env{'user.name'}:".
1.21 www 4280: "rolesdef_$rolename=".
4281: escape($sysrole.'_'.$domrole.'_'.$courole);
1.620 albertel 4282: return reply($command,$env{'user.home'});
1.12 www 4283: } else {
4284: return 'refused';
4285: }
1.105 harris41 4286: }
4287:
4288: # ---------------- Make a metadata query against the network of library servers
4289:
4290: sub metadata_query {
1.244 matthew 4291: my ($query,$custom,$customshow,$server_array)=@_;
1.120 harris41 4292: my %rhash;
1.845 albertel 4293: my %libserv = &all_library();
1.244 matthew 4294: my @server_list = (defined($server_array) ? @$server_array
4295: : keys(%libserv) );
4296: for my $server (@server_list) {
1.118 harris41 4297: unless ($custom or $customshow) {
4298: my $reply=&reply("querysend:".&escape($query),$server);
4299: $rhash{$server}=$reply;
4300: }
4301: else {
4302: my $reply=&reply("querysend:".&escape($query).':'.
4303: &escape($custom).':'.&escape($customshow),
4304: $server);
4305: $rhash{$server}=$reply;
4306: }
1.112 harris41 4307: }
1.118 harris41 4308: return \%rhash;
1.240 www 4309: }
4310:
4311: # ----------------------------------------- Send log queries and wait for reply
4312:
4313: sub log_query {
4314: my ($uname,$udom,$query,%filters)=@_;
4315: my $uhome=&homeserver($uname,$udom);
4316: if ($uhome eq 'no_host') { return 'error: no_host'; }
1.838 albertel 4317: my $uhost=&hostname($uhome);
1.800 albertel 4318: my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
1.240 www 4319: my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
4320: $uhome);
1.479 albertel 4321: unless ($queryid=~/^\Q$uhost\E\_/) { return 'error: '.$queryid; }
1.242 www 4322: return get_query_reply($queryid);
4323: }
4324:
1.818 raeburn 4325: # -------------------------- Update MySQL table for portfolio file
4326:
4327: sub update_portfolio_table {
1.821 raeburn 4328: my ($uname,$udom,$file_name,$query,$group,$action) = @_;
1.818 raeburn 4329: my $homeserver = &homeserver($uname,$udom);
4330: my $queryid=
1.821 raeburn 4331: &reply("querysend:".$query.':'.&escape($uname.':'.$udom.':'.$group).
4332: ':'.&escape($file_name).':'.$action,$homeserver);
1.818 raeburn 4333: my $reply = &get_query_reply($queryid);
4334: return $reply;
4335: }
4336:
1.508 raeburn 4337: # ------- Request retrieval of institutional classlists for course(s)
1.506 raeburn 4338:
4339: sub fetch_enrollment_query {
1.511 raeburn 4340: my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
1.508 raeburn 4341: my $homeserver;
1.547 raeburn 4342: my $maxtries = 1;
1.508 raeburn 4343: if ($context eq 'automated') {
4344: $homeserver = $perlvar{'lonHostID'};
1.547 raeburn 4345: $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
1.508 raeburn 4346: } else {
4347: $homeserver = &homeserver($cnum,$dom);
4348: }
1.838 albertel 4349: my $host=&hostname($homeserver);
1.506 raeburn 4350: my $cmd = '';
1.800 albertel 4351: foreach my $affiliate (keys %{$affiliatesref}) {
4352: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.506 raeburn 4353: }
4354: $cmd =~ s/%%$//;
4355: $cmd = &escape($cmd);
4356: my $query = 'fetchenrollment';
1.620 albertel 4357: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$env{'user.name'}.':'.$cmd,$homeserver);
1.526 raeburn 4358: unless ($queryid=~/^\Q$host\E\_/) {
4359: &logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
4360: return 'error: '.$queryid;
4361: }
1.506 raeburn 4362: my $reply = &get_query_reply($queryid);
1.547 raeburn 4363: my $tries = 1;
4364: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4365: $reply = &get_query_reply($queryid);
4366: $tries ++;
4367: }
1.526 raeburn 4368: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
1.620 albertel 4369: &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
1.526 raeburn 4370: } else {
1.515 raeburn 4371: my @responses = split/:/,$reply;
4372: if ($homeserver eq $perlvar{'lonHostID'}) {
1.800 albertel 4373: foreach my $line (@responses) {
4374: my ($key,$value) = split(/=/,$line,2);
1.515 raeburn 4375: $$replyref{$key} = $value;
4376: }
4377: } else {
1.506 raeburn 4378: my $pathname = $perlvar{'lonDaemons'}.'/tmp';
1.800 albertel 4379: foreach my $line (@responses) {
4380: my ($key,$value) = split(/=/,$line);
1.506 raeburn 4381: $$replyref{$key} = $value;
4382: if ($value > 0) {
1.800 albertel 4383: foreach my $item (@{$$affiliatesref{$key}}) {
4384: my $filename = $dom.'_'.$key.'_'.$item.'_classlist.xml';
1.506 raeburn 4385: my $destname = $pathname.'/'.$filename;
4386: my $xml_classlist = &reply("autoretrieve:".$filename,$homeserver);
1.526 raeburn 4387: if ($xml_classlist =~ /^error/) {
4388: &logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
4389: } else {
1.506 raeburn 4390: if ( open(FILE,">$destname") ) {
4391: print FILE &unescape($xml_classlist);
4392: close(FILE);
1.526 raeburn 4393: } else {
4394: &logthis('fetch_enrollment_query - error opening classlist file '.$destname.' '.$context.' '.$cnum);
1.506 raeburn 4395: }
4396: }
4397: }
4398: }
4399: }
4400: }
4401: return 'ok';
4402: }
4403: return 'error';
4404: }
4405:
1.242 www 4406: sub get_query_reply {
4407: my $queryid=shift;
1.240 www 4408: my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
4409: my $reply='';
4410: for (1..100) {
4411: sleep 2;
4412: if (-e $replyfile.'.end') {
1.448 albertel 4413: if (open(my $fh,$replyfile)) {
1.240 www 4414: $reply.=<$fh>;
1.448 albertel 4415: close($fh);
1.240 www 4416: } else { return 'error: reply_file_error'; }
1.242 www 4417: return &unescape($reply);
4418: }
1.240 www 4419: }
1.242 www 4420: return 'timeout:'.$queryid;
1.240 www 4421: }
4422:
4423: sub courselog_query {
1.241 www 4424: #
4425: # possible filters:
4426: # url: url or symb
4427: # username
4428: # domain
4429: # action: view, submit, grade
4430: # start: timestamp
4431: # end: timestamp
4432: #
1.240 www 4433: my (%filters)=@_;
1.620 albertel 4434: unless ($env{'request.course.id'}) { return 'no_course'; }
1.241 www 4435: if ($filters{'url'}) {
4436: $filters{'url'}=&symbclean(&declutter($filters{'url'}));
4437: $filters{'url'}=~s/\.(\w+)$/(\\.\\d+)*\\.$1/;
4438: $filters{'url'}=~s/\.(\w+)\_\_\_/(\\.\\d+)*\\.$1/;
4439: }
1.620 albertel 4440: my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
4441: my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.240 www 4442: return &log_query($cname,$cdom,'courselog',%filters);
4443: }
4444:
4445: sub userlog_query {
1.858 raeburn 4446: #
4447: # possible filters:
4448: # action: log check role
4449: # start: timestamp
4450: # end: timestamp
4451: #
1.240 www 4452: my ($uname,$udom,%filters)=@_;
4453: return &log_query($uname,$udom,'userlog',%filters);
1.12 www 4454: }
4455:
1.506 raeburn 4456: #--------- Call auto-enrollment subs in localenroll.pm for homeserver for course
4457:
4458: sub auto_run {
1.508 raeburn 4459: my ($cnum,$cdom) = @_;
1.876 raeburn 4460: my $response = 0;
4461: my $settings;
4462: my %domconfig = &get_dom('configuration',['autoenroll'],$cdom);
4463: if (ref($domconfig{'autoenroll'}) eq 'HASH') {
4464: $settings = $domconfig{'autoenroll'};
4465: if ($settings->{'run'} eq '1') {
4466: $response = 1;
4467: }
4468: } else {
4469: my $homeserver = &homeserver($cnum,$cdom);
4470: $response = &reply('autorun:'.$cdom,$homeserver);
4471: }
1.506 raeburn 4472: return $response;
4473: }
1.776 albertel 4474:
1.506 raeburn 4475: sub auto_get_sections {
1.508 raeburn 4476: my ($cnum,$cdom,$inst_coursecode) = @_;
4477: my $homeserver = &homeserver($cnum,$cdom);
1.506 raeburn 4478: my @secs = ();
1.511 raeburn 4479: my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
1.506 raeburn 4480: unless ($response eq 'refused') {
4481: @secs = split/:/,$response;
4482: }
4483: return @secs;
4484: }
1.776 albertel 4485:
1.506 raeburn 4486: sub auto_new_course {
1.508 raeburn 4487: my ($cnum,$cdom,$inst_course_id,$owner) = @_;
4488: my $homeserver = &homeserver($cnum,$cdom);
1.515 raeburn 4489: my $response=&unescape(&reply('autonewcourse:'.$inst_course_id.':'.$owner.':'.$cdom,$homeserver));
1.506 raeburn 4490: return $response;
4491: }
1.776 albertel 4492:
1.506 raeburn 4493: sub auto_validate_courseID {
1.508 raeburn 4494: my ($cnum,$cdom,$inst_course_id) = @_;
4495: my $homeserver = &homeserver($cnum,$cdom);
1.511 raeburn 4496: my $response=&unescape(&reply('autovalidatecourse:'.$inst_course_id.':'.$cdom,$homeserver));
1.506 raeburn 4497: return $response;
4498: }
1.776 albertel 4499:
1.506 raeburn 4500: sub auto_create_password {
1.873 raeburn 4501: my ($cnum,$cdom,$authparam,$udom) = @_;
4502: my ($homeserver,$response);
1.506 raeburn 4503: my $create_passwd = 0;
4504: my $authchk = '';
1.873 raeburn 4505: if ($udom =~ /^$match_domain$/) {
4506: $homeserver = &domain($udom,'primary');
4507: }
4508: if ($homeserver eq '') {
4509: if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
4510: $homeserver = &homeserver($cnum,$cdom);
4511: }
4512: }
4513: if ($homeserver eq '') {
4514: $authchk = 'nodomain';
1.506 raeburn 4515: } else {
1.873 raeburn 4516: $response=&unescape(&reply('autocreatepassword:'.$authparam.':'.$cdom,$homeserver));
4517: if ($response eq 'refused') {
4518: $authchk = 'refused';
4519: } else {
4520: ($authparam,$create_passwd,$authchk) = split/:/,$response;
4521: }
1.506 raeburn 4522: }
4523: return ($authparam,$create_passwd,$authchk);
4524: }
4525:
1.706 raeburn 4526: sub auto_photo_permission {
4527: my ($cnum,$cdom,$students) = @_;
4528: my $homeserver = &homeserver($cnum,$cdom);
1.707 albertel 4529: my ($outcome,$perm_reqd,$conditions) =
4530: split(/:/,&unescape(&reply('autophotopermission:'.$cdom,$homeserver)),3);
1.709 albertel 4531: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4532: return (undef,undef);
4533: }
1.706 raeburn 4534: return ($outcome,$perm_reqd,$conditions);
4535: }
4536:
4537: sub auto_checkphotos {
4538: my ($uname,$udom,$pid) = @_;
4539: my $homeserver = &homeserver($uname,$udom);
4540: my ($result,$resulttype);
4541: my $outcome = &unescape(&reply('autophotocheck:'.&escape($udom).':'.
1.707 albertel 4542: &escape($uname).':'.&escape($pid),
4543: $homeserver));
1.709 albertel 4544: if ($outcome =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4545: return (undef,undef);
4546: }
1.706 raeburn 4547: if ($outcome) {
4548: ($result,$resulttype) = split(/:/,$outcome);
4549: }
4550: return ($result,$resulttype);
4551: }
4552:
4553: sub auto_photochoice {
4554: my ($cnum,$cdom) = @_;
4555: my $homeserver = &homeserver($cnum,$cdom);
4556: my ($update,$comment) = split(/:/,&unescape(&reply('autophotochoice:'.
1.707 albertel 4557: &escape($cdom),
4558: $homeserver)));
1.709 albertel 4559: if ($update =~ /^(con_lost|unknown_cmd|no_such_host)$/) {
4560: return (undef,undef);
4561: }
1.706 raeburn 4562: return ($update,$comment);
4563: }
4564:
4565: sub auto_photoupdate {
4566: my ($affiliatesref,$dom,$cnum,$photo) = @_;
4567: my $homeserver = &homeserver($cnum,$dom);
1.838 albertel 4568: my $host=&hostname($homeserver);
1.706 raeburn 4569: my $cmd = '';
4570: my $maxtries = 1;
1.800 albertel 4571: foreach my $affiliate (keys(%{$affiliatesref})) {
4572: $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
1.706 raeburn 4573: }
4574: $cmd =~ s/%%$//;
4575: $cmd = &escape($cmd);
4576: my $query = 'institutionalphotos';
4577: my $queryid=&reply("querysend:".$query.':'.$dom.':'.$cnum.':'.$cmd,$homeserver);
4578: unless ($queryid=~/^\Q$host\E\_/) {
4579: &logthis('institutionalphotos: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' and course: '.$cnum);
4580: return 'error: '.$queryid;
4581: }
4582: my $reply = &get_query_reply($queryid);
4583: my $tries = 1;
4584: while (($reply=~/^timeout/) && ($tries < $maxtries)) {
4585: $reply = &get_query_reply($queryid);
4586: $tries ++;
4587: }
4588: if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
4589: &logthis('institutionalphotos error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' course: '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
4590: } else {
4591: my @responses = split(/:/,$reply);
4592: my $outcome = shift(@responses);
4593: foreach my $item (@responses) {
4594: my ($key,$value) = split(/=/,$item);
4595: $$photo{$key} = $value;
4596: }
4597: return $outcome;
4598: }
4599: return 'error';
4600: }
4601:
1.521 raeburn 4602: sub auto_instcode_format {
1.793 albertel 4603: my ($caller,$codedom,$instcodes,$codes,$codetitles,$cat_titles,
4604: $cat_order) = @_;
1.521 raeburn 4605: my $courses = '';
1.772 raeburn 4606: my @homeservers;
1.521 raeburn 4607: if ($caller eq 'global') {
1.841 albertel 4608: my %servers = &get_servers($codedom,'library');
4609: foreach my $tryserver (keys(%servers)) {
4610: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
4611: push(@homeservers,$tryserver);
4612: }
1.584 raeburn 4613: }
1.521 raeburn 4614: } else {
1.772 raeburn 4615: push(@homeservers,&homeserver($caller,$codedom));
1.521 raeburn 4616: }
1.793 albertel 4617: foreach my $code (keys(%{$instcodes})) {
4618: $courses .= &escape($code).'='.&escape($$instcodes{$code}).'&';
1.521 raeburn 4619: }
4620: chop($courses);
1.772 raeburn 4621: my $ok_response = 0;
4622: my $response;
4623: while (@homeservers > 0 && $ok_response == 0) {
4624: my $server = shift(@homeservers);
4625: $response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
4626: if ($response !~ /(con_lost|error|no_such_host|refused)/) {
4627: my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
1.793 albertel 4628: split/:/,$response;
1.772 raeburn 4629: %{$codes} = (%{$codes},&str2hash($codes_str));
4630: push(@{$codetitles},&str2array($codetitles_str));
4631: %{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
4632: %{$cat_order} = (%{$cat_order},&str2hash($cat_order_str));
4633: $ok_response = 1;
4634: }
4635: }
4636: if ($ok_response) {
1.521 raeburn 4637: return 'ok';
1.772 raeburn 4638: } else {
4639: return $response;
1.521 raeburn 4640: }
4641: }
4642:
1.792 raeburn 4643: sub auto_instcode_defaults {
4644: my ($domain,$returnhash,$code_order) = @_;
4645: my @homeservers;
1.841 albertel 4646:
4647: my %servers = &get_servers($domain,'library');
4648: foreach my $tryserver (keys(%servers)) {
4649: if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
4650: push(@homeservers,$tryserver);
4651: }
1.792 raeburn 4652: }
1.841 albertel 4653:
1.792 raeburn 4654: my $response;
1.841 albertel 4655: foreach my $server (@homeservers) {
1.792 raeburn 4656: $response=&reply('autoinstcodedefaults:'.$domain,$server);
1.841 albertel 4657: next if ($response =~ /(con_lost|error|no_such_host|refused)/);
4658:
4659: foreach my $pair (split(/\&/,$response)) {
4660: my ($name,$value)=split(/\=/,$pair);
4661: if ($name eq 'code_order') {
4662: @{$code_order} = split(/\&/,&unescape($value));
4663: } else {
4664: $returnhash->{&unescape($name)}=&unescape($value);
4665: }
4666: }
4667: return 'ok';
1.792 raeburn 4668: }
1.841 albertel 4669:
4670: return $response;
1.792 raeburn 4671: }
4672:
1.777 albertel 4673: sub auto_validate_class_sec {
1.773 raeburn 4674: my ($cdom,$cnum,$owner,$inst_class) = @_;
4675: my $homeserver = &homeserver($cnum,$cdom);
4676: my $response=&reply('autovalidateclass_sec:'.$inst_class.':'.
1.774 banghart 4677: &escape($owner).':'.$cdom,$homeserver);
1.773 raeburn 4678: return $response;
4679: }
4680:
1.679 raeburn 4681: # ------------------------------------------------------- Course Group routines
4682:
4683: sub get_coursegroups {
1.809 raeburn 4684: my ($cdom,$cnum,$group,$namespace) = @_;
4685: return(&dump($namespace,$cdom,$cnum,$group));
1.805 raeburn 4686: }
4687:
1.679 raeburn 4688: sub modify_coursegroup {
4689: my ($cdom,$cnum,$groupsettings) = @_;
4690: return(&put('coursegroups',$groupsettings,$cdom,$cnum));
4691: }
4692:
1.809 raeburn 4693: sub toggle_coursegroup_status {
4694: my ($cdom,$cnum,$group,$action) = @_;
4695: my ($from_namespace,$to_namespace);
4696: if ($action eq 'delete') {
4697: $from_namespace = 'coursegroups';
4698: $to_namespace = 'deleted_groups';
4699: } else {
4700: $from_namespace = 'deleted_groups';
4701: $to_namespace = 'coursegroups';
4702: }
4703: my %curr_group = &get_coursegroups($cdom,$cnum,$group,$from_namespace);
1.805 raeburn 4704: if (my $tmp = &error(%curr_group)) {
4705: &Apache::lonnet::logthis('Error retrieving group: '.$tmp.' in '.$cnum.':'.$cdom);
4706: return ('read error',$tmp);
4707: } else {
4708: my %savedsettings = %curr_group;
1.809 raeburn 4709: my $result = &put($to_namespace,\%savedsettings,$cdom,$cnum);
1.805 raeburn 4710: my $deloutcome;
4711: if ($result eq 'ok') {
1.809 raeburn 4712: $deloutcome = &del($from_namespace,[$group],$cdom,$cnum);
1.805 raeburn 4713: } else {
4714: return ('write error',$result);
4715: }
4716: if ($deloutcome eq 'ok') {
4717: return 'ok';
4718: } else {
4719: return ('delete error',$deloutcome);
4720: }
4721: }
4722: }
4723:
1.679 raeburn 4724: sub modify_group_roles {
4725: my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs) = @_;
4726: my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
4727: my $role = 'gr/'.&escape($userprivs);
4728: my ($uname,$udom) = split(/:/,$user);
4729: my $result = &assignrole($udom,$uname,$url,$role,$end,$start);
1.684 raeburn 4730: if ($result eq 'ok') {
4731: &devalidate_getgroups_cache($udom,$uname,$cdom,$cnum);
4732: }
1.679 raeburn 4733: return $result;
4734: }
4735:
4736: sub modify_coursegroup_membership {
4737: my ($cdom,$cnum,$membership) = @_;
4738: my $result = &put('groupmembership',$membership,$cdom,$cnum);
4739: return $result;
4740: }
4741:
1.682 raeburn 4742: sub get_active_groups {
4743: my ($udom,$uname,$cdom,$cnum) = @_;
4744: my $now = time;
4745: my %groups = ();
4746: foreach my $key (keys(%env)) {
1.811 albertel 4747: if ($key =~ m-user\.role\.gr\./($match_domain)/($match_courseid)/(\w+)$-) {
1.682 raeburn 4748: my ($start,$end) = split(/\./,$env{$key});
4749: if (($end!=0) && ($end<$now)) { next; }
4750: if (($start!=0) && ($start>$now)) { next; }
4751: if ($1 eq $cdom && $2 eq $cnum) {
4752: $groups{$3} = $env{$key} ;
4753: }
4754: }
4755: }
4756: return %groups;
4757: }
4758:
1.683 raeburn 4759: sub get_group_membership {
4760: my ($cdom,$cnum,$group) = @_;
4761: return(&dump('groupmembership',$cdom,$cnum,$group));
4762: }
4763:
4764: sub get_users_groups {
4765: my ($udom,$uname,$courseid) = @_;
1.733 raeburn 4766: my @usersgroups;
1.683 raeburn 4767: my $cachetime=1800;
4768:
4769: my $hashid="$udom:$uname:$courseid";
1.733 raeburn 4770: my ($grouplist,$cached)=&is_cached_new('getgroups',$hashid);
4771: if (defined($cached)) {
1.734 albertel 4772: @usersgroups = split(/:/,$grouplist);
1.733 raeburn 4773: } else {
4774: $grouplist = '';
1.816 raeburn 4775: my $courseurl = &courseid_to_courseurl($courseid);
4776: my %roleshash = &dump('roles',$udom,$uname,$courseurl);
1.817 raeburn 4777: my $access_end = $env{'course.'.$courseid.
4778: '.default_enrollment_end_date'};
4779: my $now = time;
4780: foreach my $key (keys(%roleshash)) {
4781: if ($key =~ /^\Q$courseurl\E\/(\w+)\_gr$/) {
4782: my $group = $1;
4783: if ($roleshash{$key} =~ /_(\d+)_(\d+)$/) {
4784: my $start = $2;
4785: my $end = $1;
4786: if ($start == -1) { next; } # deleted from group
4787: if (($start!=0) && ($start>$now)) { next; }
4788: if (($end!=0) && ($end<$now)) {
4789: if ($access_end && $access_end < $now) {
4790: if ($access_end - $end < 86400) {
4791: push(@usersgroups,$group);
1.733 raeburn 4792: }
4793: }
1.817 raeburn 4794: next;
1.733 raeburn 4795: }
1.817 raeburn 4796: push(@usersgroups,$group);
1.683 raeburn 4797: }
4798: }
4799: }
1.817 raeburn 4800: @usersgroups = &sort_course_groups($courseid,@usersgroups);
4801: $grouplist = join(':',@usersgroups);
4802: &do_cache_new('getgroups',$hashid,$grouplist,$cachetime);
1.683 raeburn 4803: }
1.733 raeburn 4804: return @usersgroups;
1.683 raeburn 4805: }
4806:
4807: sub devalidate_getgroups_cache {
4808: my ($udom,$uname,$cdom,$cnum)=@_;
4809: my $courseid = $cdom.'_'.$cnum;
1.807 albertel 4810:
1.683 raeburn 4811: my $hashid="$udom:$uname:$courseid";
4812: &devalidate_cache_new('getgroups',$hashid);
4813: }
4814:
1.12 www 4815: # ------------------------------------------------------------------ Plain Text
4816:
4817: sub plaintext {
1.742 raeburn 4818: my ($short,$type,$cid) = @_;
1.758 albertel 4819: if ($short =~ /^cr/) {
4820: return (split('/',$short))[-1];
4821: }
1.742 raeburn 4822: if (!defined($cid)) {
4823: $cid = $env{'request.course.id'};
4824: }
4825: if (defined($cid) && defined($env{'course.'.$cid.'.'.$short.'.plaintext'})) {
4826: return &Apache::lonlocal::mt($env{'course.'.$cid.'.'.$short.
4827: '.plaintext'});
4828: }
4829: my %rolenames = (
4830: Course => 'std',
4831: Group => 'alt1',
4832: );
4833: if (defined($type) &&
4834: defined($rolenames{$type}) &&
4835: defined($prp{$short}{$rolenames{$type}})) {
4836: return &Apache::lonlocal::mt($prp{$short}{$rolenames{$type}});
4837: } else {
4838: return &Apache::lonlocal::mt($prp{$short}{'std'});
4839: }
1.12 www 4840: }
4841:
4842: # ----------------------------------------------------------------- Assign Role
4843:
4844: sub assignrole {
1.357 www 4845: my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
1.21 www 4846: my $mrole;
4847: if ($role =~ /^cr\//) {
1.393 www 4848: my $cwosec=$url;
1.811 albertel 4849: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.393 www 4850: unless (&allowed('ccr',$cwosec)) {
1.104 www 4851: &logthis('Refused custom assignrole: '.
4852: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 4853: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 4854: return 'refused';
4855: }
1.21 www 4856: $mrole='cr';
1.678 raeburn 4857: } elsif ($role =~ /^gr\//) {
4858: my $cwogrp=$url;
1.811 albertel 4859: $cwogrp=~s{^/($match_domain)/($match_courseid)/.*}{$1/$2};
1.678 raeburn 4860: unless (&allowed('mdg',$cwogrp)) {
4861: &logthis('Refused group assignrole: '.
4862: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
4863: $env{'user.name'}.' at '.$env{'user.domain'});
4864: return 'refused';
4865: }
4866: $mrole='gr';
1.21 www 4867: } else {
1.82 www 4868: my $cwosec=$url;
1.811 albertel 4869: $cwosec=~s/^\/($match_domain)\/($match_courseid)\/.*/$1\/$2/;
1.373 www 4870: unless ((&allowed('c'.$role,$cwosec)) || &allowed('c'.$role,$udom)) {
1.104 www 4871: &logthis('Refused assignrole: '.
4872: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1.620 albertel 4873: $env{'user.name'}.' at '.$env{'user.domain'});
1.104 www 4874: return 'refused';
4875: }
1.21 www 4876: $mrole=$role;
4877: }
1.620 albertel 4878: my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
1.21 www 4879: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 4880: if ($end) { $command.='_'.$end; }
1.21 www 4881: if ($start) {
4882: if ($end) {
1.81 www 4883: $command.='_'.$start;
1.21 www 4884: } else {
1.81 www 4885: $command.='_0_'.$start;
1.21 www 4886: }
4887: }
1.739 raeburn 4888: my $origstart = $start;
4889: my $origend = $end;
1.357 www 4890: # actually delete
4891: if ($deleteflag) {
1.373 www 4892: if ((&allowed('dro',$udom)) || (&allowed('dro',$url))) {
1.357 www 4893: # modify command to delete the role
1.620 albertel 4894: $command="encrypt:rolesdel:$env{'user.domain'}:$env{'user.name'}:".
1.357 www 4895: "$udom:$uname:$url".'_'."$mrole";
1.620 albertel 4896: &logthis("$env{'user.name'} at $env{'user.domain'} deletes $mrole in $url for $uname at $udom");
1.357 www 4897: # set start and finish to negative values for userrolelog
4898: $start=-1;
4899: $end=-1;
4900: }
4901: }
4902: # send command
1.349 www 4903: my $answer=&reply($command,&homeserver($uname,$udom));
1.357 www 4904: # log new user role if status is ok
1.349 www 4905: if ($answer eq 'ok') {
1.663 raeburn 4906: &userrolelog($role,$uname,$udom,$url,$start,$end);
1.739 raeburn 4907: # for course roles, perform group memberships changes triggered by role change.
4908: unless ($role =~ /^gr/) {
4909: &Apache::longroup::group_changes($udom,$uname,$url,$role,$origend,
4910: $origstart);
4911: }
1.349 www 4912: }
4913: return $answer;
1.169 harris41 4914: }
4915:
4916: # -------------------------------------------------- Modify user authentication
1.197 www 4917: # Overrides without validation
4918:
1.169 harris41 4919: sub modifyuserauth {
4920: my ($udom,$uname,$umode,$upass)=@_;
4921: my $uhome=&homeserver($uname,$udom);
1.197 www 4922: unless (&allowed('mau',$udom)) { return 'refused'; }
4923: &logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
1.620 albertel 4924: $umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
4925: ' in domain '.$env{'request.role.domain'});
1.169 harris41 4926: my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
4927: &escape($upass),$uhome);
1.620 albertel 4928: &log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
1.197 www 4929: 'Authentication changed for '.$udom.', '.$uname.', '.$umode.
4930: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
4931: &log($udom,,$uname,$uhome,
1.620 albertel 4932: 'Authentication changed by '.$env{'user.domain'}.', '.
4933: $env{'user.name'}.', '.$umode.
1.197 www 4934: '(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
1.169 harris41 4935: unless ($reply eq 'ok') {
1.197 www 4936: &logthis('Authentication mode error: '.$reply);
1.169 harris41 4937: return 'error: '.$reply;
4938: }
1.170 harris41 4939: return 'ok';
1.80 www 4940: }
4941:
1.81 www 4942: # --------------------------------------------------------------- Modify a user
1.80 www 4943:
1.81 www 4944: sub modifyuser {
1.206 matthew 4945: my ($udom, $uname, $uid,
4946: $umode, $upass, $first,
4947: $middle, $last, $gene,
1.387 www 4948: $forceid, $desiredhome, $email)=@_;
1.807 albertel 4949: $udom= &LONCAPA::clean_domain($udom);
4950: $uname=&LONCAPA::clean_username($uname);
1.81 www 4951: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 4952: $umode.', '.$first.', '.$middle.', '.
1.206 matthew 4953: $last.', '.$gene.'(forceid: '.$forceid.')'.
4954: (defined($desiredhome) ? ' desiredhome = '.$desiredhome :
4955: ' desiredhome not specified').
1.620 albertel 4956: ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
4957: ' in domain '.$env{'request.role.domain'});
1.230 stredwic 4958: my $uhome=&homeserver($uname,$udom,'true');
1.80 www 4959: # ----------------------------------------------------------------- Create User
1.406 albertel 4960: if (($uhome eq 'no_host') &&
4961: (($umode && $upass) || ($umode eq 'localauth'))) {
1.80 www 4962: my $unhome='';
1.844 albertel 4963: if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
1.209 matthew 4964: $unhome = $desiredhome;
1.620 albertel 4965: } elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
4966: $unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
1.209 matthew 4967: } else { # load balancing routine for determining $unhome
1.81 www 4968: my $loadm=10000000;
1.841 albertel 4969: my %servers = &get_servers($udom,'library');
4970: foreach my $tryserver (keys(%servers)) {
4971: my $answer=reply('load',$tryserver);
4972: if (($answer=~/\d+/) && ($answer<$loadm)) {
4973: $loadm=$answer;
4974: $unhome=$tryserver;
4975: }
1.80 www 4976: }
4977: }
4978: if (($unhome eq '') || ($unhome eq 'no_host')) {
1.206 matthew 4979: return 'error: unable to find a home server for '.$uname.
4980: ' in domain '.$udom;
1.80 www 4981: }
4982: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
4983: &escape($upass),$unhome);
4984: unless ($reply eq 'ok') {
4985: return 'error: '.$reply;
4986: }
1.230 stredwic 4987: $uhome=&homeserver($uname,$udom,'true');
1.80 www 4988: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1.386 matthew 4989: return 'error: unable verify users home machine.';
1.80 www 4990: }
1.209 matthew 4991: } # End of creation of new user
1.80 www 4992: # ---------------------------------------------------------------------- Add ID
4993: if ($uid) {
4994: $uid=~tr/A-Z/a-z/;
4995: my %uidhash=&idrget($udom,$uname);
1.196 www 4996: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)
4997: && (!$forceid)) {
1.80 www 4998: unless ($uid eq $uidhash{$uname}) {
1.386 matthew 4999: return 'error: user id "'.$uid.'" does not match '.
5000: 'current user id "'.$uidhash{$uname}.'".';
1.80 www 5001: }
5002: } else {
5003: &idput($udom,($uname => $uid));
5004: }
5005: }
5006: # -------------------------------------------------------------- Add names, etc
1.313 matthew 5007: my @tmp=&get('environment',
1.134 albertel 5008: ['firstname','middlename','lastname','generation'],
5009: $udom,$uname);
1.313 matthew 5010: my %names;
5011: if ($tmp[0] =~ m/^error:.*/) {
5012: %names=();
5013: } else {
5014: %names = @tmp;
5015: }
1.388 www 5016: #
5017: # Make sure to not trash student environment if instructor does not bother
5018: # to supply name and email information
5019: #
5020: if ($first) { $names{'firstname'} = $first; }
1.385 matthew 5021: if (defined($middle)) { $names{'middlename'} = $middle; }
1.388 www 5022: if ($last) { $names{'lastname'} = $last; }
1.385 matthew 5023: if (defined($gene)) { $names{'generation'} = $gene; }
1.592 www 5024: if ($email) {
5025: $email=~s/[^\w\@\.\-\,]//gs;
5026: if ($email=~/\@/) { $names{'notification'} = $email;
5027: $names{'critnotification'} = $email;
5028: $names{'permanentemail'} = $email; }
5029: }
1.134 albertel 5030: my $reply = &put('environment', \%names, $udom,$uname);
5031: if ($reply ne 'ok') { return 'error: '.$reply; }
1.680 www 5032: &devalidate_cache_new('namescache',$uname.':'.$udom);
1.81 www 5033: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 5034: $umode.', '.$first.', '.$middle.', '.
5035: $last.', '.$gene.' by '.
1.620 albertel 5036: $env{'user.name'}.' at '.$env{'user.domain'});
1.134 albertel 5037: return 'ok';
1.80 www 5038: }
5039:
1.81 www 5040: # -------------------------------------------------------------- Modify student
1.80 www 5041:
1.81 www 5042: sub modifystudent {
5043: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1.515 raeburn 5044: $end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid)=@_;
1.455 albertel 5045: if (!$cid) {
1.620 albertel 5046: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5047: return 'not_in_class';
5048: }
1.80 www 5049: }
5050: # --------------------------------------------------------------- Make the user
1.81 www 5051: my $reply=&modifyuser
1.209 matthew 5052: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid,
1.387 www 5053: $desiredhome,$email);
1.80 www 5054: unless ($reply eq 'ok') { return $reply; }
1.297 matthew 5055: # This will cause &modify_student_enrollment to get the uid from the
5056: # students environment
5057: $uid = undef if (!$forceid);
1.455 albertel 5058: $reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
1.515 raeburn 5059: $gene,$usec,$end,$start,$type,$locktype,$cid);
1.297 matthew 5060: return $reply;
5061: }
5062:
5063: sub modify_student_enrollment {
1.515 raeburn 5064: my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid) = @_;
1.455 albertel 5065: my ($cdom,$cnum,$chome);
5066: if (!$cid) {
1.620 albertel 5067: unless ($cid=$env{'request.course.id'}) {
1.455 albertel 5068: return 'not_in_class';
5069: }
1.620 albertel 5070: $cdom=$env{'course.'.$cid.'.domain'};
5071: $cnum=$env{'course.'.$cid.'.num'};
1.455 albertel 5072: } else {
5073: ($cdom,$cnum)=split(/_/,$cid);
5074: }
1.620 albertel 5075: $chome=$env{'course.'.$cid.'.home'};
1.455 albertel 5076: if (!$chome) {
1.457 raeburn 5077: $chome=&homeserver($cnum,$cdom);
1.297 matthew 5078: }
1.455 albertel 5079: if (!$chome) { return 'unknown_course'; }
1.297 matthew 5080: # Make sure the user exists
1.81 www 5081: my $uhome=&homeserver($uname,$udom);
5082: if (($uhome eq '') || ($uhome eq 'no_host')) {
5083: return 'error: no such user';
5084: }
1.297 matthew 5085: # Get student data if we were not given enough information
5086: if (!defined($first) || $first eq '' ||
5087: !defined($last) || $last eq '' ||
5088: !defined($uid) || $uid eq '' ||
5089: !defined($middle) || $middle eq '' ||
5090: !defined($gene) || $gene eq '') {
1.294 matthew 5091: # They did not supply us with enough data to enroll the student, so
5092: # we need to pick up more information.
1.297 matthew 5093: my %tmp = &get('environment',
1.294 matthew 5094: ['firstname','middlename','lastname', 'generation','id']
1.297 matthew 5095: ,$udom,$uname);
5096:
1.800 albertel 5097: #foreach my $key (keys(%tmp)) {
5098: # &logthis("key $key = ".$tmp{$key});
1.455 albertel 5099: #}
1.294 matthew 5100: $first = $tmp{'firstname'} if (!defined($first) || $first eq '');
5101: $middle = $tmp{'middlename'} if (!defined($middle) || $middle eq '');
5102: $last = $tmp{'lastname'} if (!defined($last) || $last eq '');
1.297 matthew 5103: $gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
1.294 matthew 5104: $uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
5105: }
1.556 albertel 5106: my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
1.487 albertel 5107: my $reply=cput('classlist',
5108: {"$uname:$udom" =>
1.515 raeburn 5109: join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
1.487 albertel 5110: $cdom,$cnum);
1.81 www 5111: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
5112: return 'error: '.$reply;
1.652 albertel 5113: } else {
5114: &devalidate_getsection_cache($udom,$uname,$cid);
1.81 www 5115: }
1.297 matthew 5116: # Add student role to user
1.83 www 5117: my $uurl='/'.$cid;
1.81 www 5118: $uurl=~s/\_/\//g;
5119: if ($usec) {
5120: $uurl.='/'.$usec;
5121: }
5122: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 5123: }
5124:
1.556 albertel 5125: sub format_name {
5126: my ($firstname,$middlename,$lastname,$generation,$first)=@_;
5127: my $name;
5128: if ($first ne 'lastname') {
5129: $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
5130: } else {
5131: if ($lastname=~/\S/) {
5132: $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
5133: $name=~s/\s+,/,/;
5134: } else {
5135: $name.= $firstname.' '.$middlename.' '.$generation;
5136: }
5137: }
5138: $name=~s/^\s+//;
5139: $name=~s/\s+$//;
5140: $name=~s/\s+/ /g;
5141: return $name;
5142: }
5143:
1.84 www 5144: # ------------------------------------------------- Write to course preferences
5145:
5146: sub writecoursepref {
5147: my ($courseid,%prefs)=@_;
5148: $courseid=~s/^\///;
5149: $courseid=~s/\_/\//g;
5150: my ($cdomain,$cnum)=split(/\//,$courseid);
5151: my $chome=homeserver($cnum,$cdomain);
5152: if (($chome eq '') || ($chome eq 'no_host')) {
5153: return 'error: no such course';
5154: }
5155: my $cstring='';
1.800 albertel 5156: foreach my $pref (keys(%prefs)) {
5157: $cstring.=&escape($pref).'='.&escape($prefs{$pref}).'&';
1.191 harris41 5158: }
1.84 www 5159: $cstring=~s/\&$//;
5160: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
5161: }
5162:
5163: # ---------------------------------------------------------- Make/modify course
5164:
5165: sub createcourse {
1.741 raeburn 5166: my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
5167: $course_owner,$crstype)=@_;
1.84 www 5168: $url=&declutter($url);
5169: my $cid='';
1.264 matthew 5170: unless (&allowed('ccc',$udom)) {
1.84 www 5171: return 'refused';
5172: }
5173: # ------------------------------------------------------------------- Create ID
1.674 www 5174: my $uname=int(1+rand(9)).
5175: ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
5176: substr($$.time,0,5).unpack("H8",pack("I32",time)).
1.84 www 5177: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
5178: # ----------------------------------------------- Make sure that does not exist
1.230 stredwic 5179: my $uhome=&homeserver($uname,$udom,'true');
1.84 www 5180: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5181: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
5182: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1.230 stredwic 5183: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5184: unless (($uhome eq '') || ($uhome eq 'no_host')) {
5185: return 'error: unable to generate unique course-ID';
5186: }
5187: }
1.264 matthew 5188: # ------------------------------------------------ Check supplied server name
1.620 albertel 5189: $course_server = $env{'user.homeserver'} if (! defined($course_server));
1.845 albertel 5190: if (! &is_library($course_server)) {
1.264 matthew 5191: return 'error:bad server name '.$course_server;
5192: }
1.84 www 5193: # ------------------------------------------------------------- Make the course
5194: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1.264 matthew 5195: $course_server);
1.84 www 5196: unless ($reply eq 'ok') { return 'error: '.$reply; }
1.230 stredwic 5197: $uhome=&homeserver($uname,$udom,'true');
1.84 www 5198: if (($uhome eq '') || ($uhome eq 'no_host')) {
5199: return 'error: no such course';
5200: }
1.271 www 5201: # ----------------------------------------------------------------- Course made
1.516 raeburn 5202: # log existence
5203: &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
1.741 raeburn 5204: ':'.&escape($inst_code).':'.&escape($course_owner).':'.
5205: &escape($crstype),$uhome);
1.358 www 5206: &flushcourselogs();
5207: # set toplevel url
1.271 www 5208: my $topurl=$url;
5209: unless ($nonstandard) {
5210: # ------------------------------------------ For standard courses, make top url
5211: my $mapurl=&clutter($url);
1.278 www 5212: if ($mapurl eq '/res/') { $mapurl=''; }
1.620 albertel 5213: $env{'form.initmap'}=(<<ENDINITMAP);
1.271 www 5214: <map>
5215: <resource id="1" type="start"></resource>
5216: <resource id="2" src="$mapurl"></resource>
5217: <resource id="3" type="finish"></resource>
5218: <link index="1" from="1" to="2"></link>
5219: <link index="2" from="2" to="3"></link>
5220: </map>
5221: ENDINITMAP
5222: $topurl=&declutter(
1.638 albertel 5223: &finishuserfileupload($uname,$udom,'initmap','default.sequence')
1.271 www 5224: );
5225: }
5226: # ----------------------------------------------------------- Write preferences
1.84 www 5227: &writecoursepref($udom.'_'.$uname,
5228: ('description' => $description,
1.271 www 5229: 'url' => $topurl));
1.84 www 5230: return '/'.$udom.'/'.$uname;
5231: }
5232:
1.813 albertel 5233: sub is_course {
5234: my ($cdom,$cnum) = @_;
5235: my %courses = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,
5236: undef,'.');
5237: if (exists($courses{$cdom.'_'.$cnum})) {
5238: return 1;
5239: }
5240: return 0;
5241: }
5242:
1.21 www 5243: # ---------------------------------------------------------- Assign Custom Role
5244:
5245: sub assigncustomrole {
1.357 www 5246: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
1.21 www 5247: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1.357 www 5248: $end,$start,$deleteflag);
1.21 www 5249: }
5250:
5251: # ----------------------------------------------------------------- Revoke Role
5252:
5253: sub revokerole {
1.357 www 5254: my ($udom,$uname,$url,$role,$deleteflag)=@_;
1.21 www 5255: my $now=time;
1.357 www 5256: return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
1.21 www 5257: }
5258:
5259: # ---------------------------------------------------------- Revoke Custom Role
5260:
5261: sub revokecustomrole {
1.357 www 5262: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
1.21 www 5263: my $now=time;
1.357 www 5264: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
5265: $deleteflag);
1.17 www 5266: }
5267:
1.533 banghart 5268: # ------------------------------------------------------------ Disk usage
1.535 albertel 5269: sub diskusage {
1.533 banghart 5270: my ($udom,$uname,$directoryRoot)=@_;
5271: $directoryRoot =~ s/\/$//;
1.535 albertel 5272: my $listing=&reply('du:'.$directoryRoot,homeserver($uname,$udom));
1.514 albertel 5273: return $listing;
1.512 banghart 5274: }
5275:
1.566 banghart 5276: sub is_locked {
5277: my ($file_name, $domain, $user) = @_;
5278: my @check;
5279: my $is_locked;
5280: push @check, $file_name;
1.613 albertel 5281: my %locked = &get('file_permissions',\@check,
1.620 albertel 5282: $env{'user.domain'},$env{'user.name'});
1.615 albertel 5283: my ($tmp)=keys(%locked);
5284: if ($tmp=~/^error:/) { undef(%locked); }
1.745 raeburn 5285:
1.566 banghart 5286: if (ref($locked{$file_name}) eq 'ARRAY') {
1.745 raeburn 5287: $is_locked = 'false';
5288: foreach my $entry (@{$locked{$file_name}}) {
5289: if (ref($entry) eq 'ARRAY') {
1.746 raeburn 5290: $is_locked = 'true';
5291: last;
1.745 raeburn 5292: }
5293: }
1.566 banghart 5294: } else {
5295: $is_locked = 'false';
5296: }
5297: }
5298:
1.759 albertel 5299: sub declutter_portfile {
5300: my ($file) = @_;
1.833 albertel 5301: $file =~ s{^(/portfolio/|portfolio/)}{/};
1.759 albertel 5302: return $file;
5303: }
5304:
1.559 banghart 5305: # ------------------------------------------------------------- Mark as Read Only
5306:
5307: sub mark_as_readonly {
5308: my ($domain,$user,$files,$what) = @_;
1.613 albertel 5309: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 5310: my ($tmp)=keys(%current_permissions);
5311: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.560 banghart 5312: foreach my $file (@{$files}) {
1.759 albertel 5313: $file = &declutter_portfile($file);
1.561 banghart 5314: push(@{$current_permissions{$file}},$what);
1.559 banghart 5315: }
1.613 albertel 5316: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5317: return;
5318: }
5319:
1.572 banghart 5320: # ------------------------------------------------------------Save Selected Files
5321:
5322: sub save_selected_files {
5323: my ($user, $path, @files) = @_;
5324: my $filename = $user."savedfiles";
1.573 banghart 5325: my @other_files = &files_not_in_path($user, $path);
1.871 albertel 5326: open (OUT, '>'.$tmpdir.$filename);
1.573 banghart 5327: foreach my $file (@files) {
1.620 albertel 5328: print (OUT $env{'form.currentpath'}.$file."\n");
1.573 banghart 5329: }
5330: foreach my $file (@other_files) {
1.574 banghart 5331: print (OUT $file."\n");
1.572 banghart 5332: }
1.574 banghart 5333: close (OUT);
1.572 banghart 5334: return 'ok';
5335: }
5336:
1.574 banghart 5337: sub clear_selected_files {
5338: my ($user) = @_;
5339: my $filename = $user."savedfiles";
5340: open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
5341: print (OUT undef);
5342: close (OUT);
5343: return ("ok");
5344: }
5345:
1.572 banghart 5346: sub files_in_path {
5347: my ($user, $path) = @_;
5348: my $filename = $user."savedfiles";
5349: my %return_files;
1.574 banghart 5350: open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
1.573 banghart 5351: while (my $line_in = <IN>) {
1.574 banghart 5352: chomp ($line_in);
5353: my @paths_and_file = split (m!/!, $line_in);
5354: my $file_part = pop (@paths_and_file);
5355: my $path_part = join ('/', @paths_and_file);
1.573 banghart 5356: $path_part.='/';
5357: my $path_and_file = $path_part.$file_part;
5358: if ($path_part eq $path) {
5359: $return_files{$file_part}= 'selected';
5360: }
5361: }
1.574 banghart 5362: close (IN);
5363: return (\%return_files);
1.572 banghart 5364: }
5365:
5366: # called in portfolio select mode, to show files selected NOT in current directory
5367: sub files_not_in_path {
5368: my ($user, $path) = @_;
5369: my $filename = $user."savedfiles";
5370: my @return_files;
5371: my $path_part;
1.800 albertel 5372: open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
5373: while (my $line = <IN>) {
1.572 banghart 5374: #ok, I know it's clunky, but I want it to work
1.800 albertel 5375: my @paths_and_file = split(m|/|, $line);
5376: my $file_part = pop(@paths_and_file);
5377: chomp($file_part);
5378: my $path_part = join('/', @paths_and_file);
1.572 banghart 5379: $path_part .= '/';
5380: my $path_and_file = $path_part.$file_part;
5381: if ($path_part ne $path) {
1.800 albertel 5382: push(@return_files, ($path_and_file));
1.572 banghart 5383: }
5384: }
1.800 albertel 5385: close(OUT);
1.574 banghart 5386: return (@return_files);
1.572 banghart 5387: }
5388:
1.745 raeburn 5389: #----------------------------------------------Get portfolio file permissions
1.629 banghart 5390:
1.745 raeburn 5391: sub get_portfile_permissions {
5392: my ($domain,$user) = @_;
1.613 albertel 5393: my %current_permissions = &dump('file_permissions',$domain,$user);
1.615 albertel 5394: my ($tmp)=keys(%current_permissions);
5395: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 5396: return \%current_permissions;
5397: }
5398:
5399: #---------------------------------------------Get portfolio file access controls
5400:
1.749 raeburn 5401: sub get_access_controls {
1.745 raeburn 5402: my ($current_permissions,$group,$file) = @_;
1.769 albertel 5403: my %access;
5404: my $real_file = $file;
5405: $file =~ s/\.meta$//;
1.745 raeburn 5406: if (defined($file)) {
1.749 raeburn 5407: if (ref($$current_permissions{$file."\0".'accesscontrol'}) eq 'HASH') {
5408: foreach my $control (keys(%{$$current_permissions{$file."\0".'accesscontrol'}})) {
1.769 albertel 5409: $access{$real_file}{$control} = $$current_permissions{$file."\0".$control};
1.749 raeburn 5410: }
5411: }
1.745 raeburn 5412: } else {
1.749 raeburn 5413: foreach my $key (keys(%{$current_permissions})) {
5414: if ($key =~ /\0accesscontrol$/) {
5415: if (defined($group)) {
5416: if ($key !~ m-^\Q$group\E/-) {
5417: next;
5418: }
5419: }
5420: my ($fullpath) = split(/\0/,$key);
5421: if (ref($$current_permissions{$key}) eq 'HASH') {
5422: foreach my $control (keys(%{$$current_permissions{$key}})) {
5423: $access{$fullpath}{$control}=$$current_permissions{$fullpath."\0".$control};
5424: }
5425: }
5426: }
5427: }
5428: }
5429: return %access;
5430: }
5431:
5432: sub modify_access_controls {
5433: my ($file_name,$changes,$domain,$user)=@_;
5434: my ($outcome,$deloutcome);
5435: my %store_permissions;
5436: my %new_values;
5437: my %new_control;
5438: my %translation;
5439: my @deletions = ();
5440: my $now = time;
5441: if (exists($$changes{'activate'})) {
5442: if (ref($$changes{'activate'}) eq 'HASH') {
5443: my @newitems = sort(keys(%{$$changes{'activate'}}));
5444: my $numnew = scalar(@newitems);
5445: for (my $i=0; $i<$numnew; $i++) {
5446: my $newkey = $newitems[$i];
5447: my $newid = &Apache::loncommon::get_cgi_id();
1.797 raeburn 5448: if ($newkey =~ /^\d+:/) {
5449: $newkey =~ s/^(\d+)/$newid/;
5450: $translation{$1} = $newid;
5451: } elsif ($newkey =~ /^\d+_\d+_\d+:/) {
5452: $newkey =~ s/^(\d+_\d+_\d+)/$newid/;
5453: $translation{$1} = $newid;
5454: }
1.749 raeburn 5455: $new_values{$file_name."\0".$newkey} =
5456: $$changes{'activate'}{$newitems[$i]};
5457: $new_control{$newkey} = $now;
5458: }
5459: }
5460: }
5461: my %todelete;
5462: my %changed_items;
5463: foreach my $action ('delete','update') {
5464: if (exists($$changes{$action})) {
5465: if (ref($$changes{$action}) eq 'HASH') {
5466: foreach my $key (keys(%{$$changes{$action}})) {
5467: my ($itemnum) = ($key =~ /^([^:]+):/);
5468: if ($action eq 'delete') {
5469: $todelete{$itemnum} = 1;
5470: } else {
5471: $changed_items{$itemnum} = $key;
5472: }
5473: }
1.745 raeburn 5474: }
5475: }
1.749 raeburn 5476: }
5477: # get lock on access controls for file.
5478: my $lockhash = {
5479: $file_name."\0".'locked_access_records' => $env{'user.name'}.
5480: ':'.$env{'user.domain'},
5481: };
5482: my $tries = 0;
5483: my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5484:
5485: while (($gotlock ne 'ok') && $tries <3) {
5486: $tries ++;
5487: sleep 1;
5488: $gotlock = &newput('file_permissions',$lockhash,$domain,$user);
5489: }
5490: if ($gotlock eq 'ok') {
5491: my %curr_permissions = &dump('file_permissions',$domain,$user,$file_name);
5492: my ($tmp)=keys(%curr_permissions);
5493: if ($tmp=~/^error:/) { undef(%curr_permissions); }
5494: if (exists($curr_permissions{$file_name."\0".'accesscontrol'})) {
5495: my $curr_controls = $curr_permissions{$file_name."\0".'accesscontrol'};
5496: if (ref($curr_controls) eq 'HASH') {
5497: foreach my $control_item (keys(%{$curr_controls})) {
5498: my ($itemnum) = ($control_item =~ /^([^:]+):/);
5499: if (defined($todelete{$itemnum})) {
5500: push(@deletions,$file_name."\0".$control_item);
5501: } else {
5502: if (defined($changed_items{$itemnum})) {
5503: $new_control{$changed_items{$itemnum}} = $now;
5504: push(@deletions,$file_name."\0".$control_item);
5505: $new_values{$file_name."\0".$changed_items{$itemnum}} = $$changes{'update'}{$changed_items{$itemnum}};
5506: } else {
5507: $new_control{$control_item} = $$curr_controls{$control_item};
5508: }
5509: }
1.745 raeburn 5510: }
5511: }
5512: }
1.749 raeburn 5513: $deloutcome = &del('file_permissions',\@deletions,$domain,$user);
5514: $new_values{$file_name."\0".'accesscontrol'} = \%new_control;
5515: $outcome = &put('file_permissions',\%new_values,$domain,$user);
5516: # remove lock
5517: my @del_lock = ($file_name."\0".'locked_access_records');
5518: my $dellockoutcome = &del('file_permissions',\@del_lock,$domain,$user);
1.818 raeburn 5519: my ($file,$group);
5520: if (&is_course($domain,$user)) {
5521: ($group,$file) = split(/\//,$file_name,2);
5522: } else {
5523: $file = $file_name;
5524: }
5525: my $sqlresult =
5526: &update_portfolio_table($user,$domain,$file,'portfolio_access',
5527: $group);
1.749 raeburn 5528: } else {
5529: $outcome = "error: could not obtain lockfile\n";
1.745 raeburn 5530: }
1.749 raeburn 5531: return ($outcome,$deloutcome,\%new_values,\%translation);
1.745 raeburn 5532: }
5533:
1.827 raeburn 5534: sub make_public_indefinitely {
5535: my ($requrl) = @_;
5536: my $now = time;
5537: my $action = 'activate';
5538: my $aclnum = 0;
5539: if (&is_portfolio_url($requrl)) {
5540: my (undef,$udom,$unum,$file_name,$group) =
5541: &parse_portfolio_url($requrl);
5542: my $current_perms = &get_portfile_permissions($udom,$unum);
5543: my %access_controls = &get_access_controls($current_perms,
5544: $group,$file_name);
5545: foreach my $key (keys(%{$access_controls{$file_name}})) {
5546: my ($num,$scope,$end,$start) =
5547: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
5548: if ($scope eq 'public') {
5549: if ($start <= $now && $end == 0) {
5550: $action = 'none';
5551: } else {
5552: $action = 'update';
5553: $aclnum = $num;
5554: }
5555: last;
5556: }
5557: }
5558: if ($action eq 'none') {
5559: return 'ok';
5560: } else {
5561: my %changes;
5562: my $newend = 0;
5563: my $newstart = $now;
5564: my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
5565: $changes{$action}{$newkey} = {
5566: type => 'public',
5567: time => {
5568: start => $newstart,
5569: end => $newend,
5570: },
5571: };
5572: my ($outcome,$deloutcome,$new_values,$translation) =
5573: &modify_access_controls($file_name,\%changes,$udom,$unum);
5574: return $outcome;
5575: }
5576: } else {
5577: return 'invalid';
5578: }
5579: }
5580:
1.745 raeburn 5581: #------------------------------------------------------Get Marked as Read Only
5582:
5583: sub get_marked_as_readonly {
5584: my ($domain,$user,$what,$group) = @_;
5585: my $current_permissions = &get_portfile_permissions($domain,$user);
1.563 banghart 5586: my @readonly_files;
1.629 banghart 5587: my $cmp1=$what;
5588: if (ref($what)) { $cmp1=join('',@{$what}) };
1.745 raeburn 5589: while (my ($file_name,$value) = each(%{$current_permissions})) {
5590: if (defined($group)) {
5591: if ($file_name !~ m-^\Q$group\E/-) {
5592: next;
5593: }
5594: }
1.561 banghart 5595: if (ref($value) eq "ARRAY"){
5596: foreach my $stored_what (@{$value}) {
1.629 banghart 5597: my $cmp2=$stored_what;
1.759 albertel 5598: if (ref($stored_what) eq 'ARRAY') {
1.746 raeburn 5599: $cmp2=join('',@{$stored_what});
1.745 raeburn 5600: }
1.629 banghart 5601: if ($cmp1 eq $cmp2) {
1.561 banghart 5602: push(@readonly_files, $file_name);
1.745 raeburn 5603: last;
1.563 banghart 5604: } elsif (!defined($what)) {
5605: push(@readonly_files, $file_name);
1.745 raeburn 5606: last;
1.561 banghart 5607: }
5608: }
1.745 raeburn 5609: }
1.561 banghart 5610: }
5611: return @readonly_files;
5612: }
1.577 banghart 5613: #-----------------------------------------------------------Get Marked as Read Only Hash
1.561 banghart 5614:
1.577 banghart 5615: sub get_marked_as_readonly_hash {
1.745 raeburn 5616: my ($current_permissions,$group,$what) = @_;
1.577 banghart 5617: my %readonly_files;
1.745 raeburn 5618: while (my ($file_name,$value) = each(%{$current_permissions})) {
5619: if (defined($group)) {
5620: if ($file_name !~ m-^\Q$group\E/-) {
5621: next;
5622: }
5623: }
1.577 banghart 5624: if (ref($value) eq "ARRAY"){
5625: foreach my $stored_what (@{$value}) {
1.745 raeburn 5626: if (ref($stored_what) eq 'ARRAY') {
1.750 banghart 5627: foreach my $lock_descriptor(@{$stored_what}) {
5628: if ($lock_descriptor eq 'graded') {
5629: $readonly_files{$file_name} = 'graded';
5630: } elsif ($lock_descriptor eq 'handback') {
5631: $readonly_files{$file_name} = 'handback';
5632: } else {
5633: if (!exists($readonly_files{$file_name})) {
5634: $readonly_files{$file_name} = 'locked';
5635: }
5636: }
1.745 raeburn 5637: }
1.750 banghart 5638: }
1.577 banghart 5639: }
5640: }
5641: }
5642: return %readonly_files;
5643: }
1.559 banghart 5644: # ------------------------------------------------------------ Unmark as Read Only
5645:
5646: sub unmark_as_readonly {
1.629 banghart 5647: # unmarks $file_name (if $file_name is defined), or all files locked by $what
5648: # for portfolio submissions, $what contains [$symb,$crsid]
1.745 raeburn 5649: my ($domain,$user,$what,$file_name,$group) = @_;
1.759 albertel 5650: $file_name = &declutter_portfile($file_name);
1.634 albertel 5651: my $symb_crs = $what;
5652: if (ref($what)) { $symb_crs=join('',@$what); }
1.745 raeburn 5653: my %current_permissions = &dump('file_permissions',$domain,$user,$group);
1.615 albertel 5654: my ($tmp)=keys(%current_permissions);
5655: if ($tmp=~/^error:/) { undef(%current_permissions); }
1.745 raeburn 5656: my @readonly_files = &get_marked_as_readonly($domain,$user,$what,$group);
1.650 albertel 5657: foreach my $file (@readonly_files) {
1.759 albertel 5658: my $clean_file = &declutter_portfile($file);
5659: if (defined($file_name) && ($file_name ne $clean_file)) { next; }
1.650 albertel 5660: my $current_locks = $current_permissions{$file};
1.563 banghart 5661: my @new_locks;
5662: my @del_keys;
5663: if (ref($current_locks) eq "ARRAY"){
5664: foreach my $locker (@{$current_locks}) {
1.632 albertel 5665: my $compare=$locker;
1.749 raeburn 5666: if (ref($locker) eq 'ARRAY') {
1.745 raeburn 5667: $compare=join('',@{$locker});
1.746 raeburn 5668: if ($compare ne $symb_crs) {
5669: push(@new_locks, $locker);
5670: }
1.563 banghart 5671: }
5672: }
1.650 albertel 5673: if (scalar(@new_locks) > 0) {
1.563 banghart 5674: $current_permissions{$file} = \@new_locks;
5675: } else {
5676: push(@del_keys, $file);
1.613 albertel 5677: &del('file_permissions',\@del_keys, $domain, $user);
1.650 albertel 5678: delete($current_permissions{$file});
1.563 banghart 5679: }
5680: }
1.561 banghart 5681: }
1.613 albertel 5682: &put('file_permissions',\%current_permissions,$domain,$user);
1.559 banghart 5683: return;
5684: }
1.512 banghart 5685:
1.17 www 5686: # ------------------------------------------------------------ Directory lister
5687:
5688: sub dirlist {
1.253 stredwic 5689: my ($uri,$userdomain,$username,$alternateDirectoryRoot)=@_;
5690:
1.18 www 5691: $uri=~s/^\///;
5692: $uri=~s/\/$//;
1.253 stredwic 5693: my ($udom, $uname);
5694: (undef,$udom,$uname)=split(/\//,$uri);
5695: if(defined($userdomain)) {
5696: $udom = $userdomain;
5697: }
5698: if(defined($username)) {
5699: $uname = $username;
5700: }
5701:
5702: my $dirRoot = $perlvar{'lonDocRoot'};
5703: if(defined($alternateDirectoryRoot)) {
5704: $dirRoot = $alternateDirectoryRoot;
5705: $dirRoot =~ s/\/$//;
1.751 banghart 5706: }
1.253 stredwic 5707:
5708: if($udom) {
5709: if($uname) {
1.800 albertel 5710: my $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
5711: &homeserver($uname,$udom));
1.605 matthew 5712: my @listing_results;
5713: if ($listing eq 'unknown_cmd') {
1.800 albertel 5714: $listing = &reply('ls:'.$dirRoot.'/'.$uri,
5715: &homeserver($uname,$udom));
1.605 matthew 5716: @listing_results = split(/:/,$listing);
5717: } else {
5718: @listing_results = map { &unescape($_); } split(/:/,$listing);
5719: }
5720: return @listing_results;
1.253 stredwic 5721: } elsif(!defined($alternateDirectoryRoot)) {
1.800 albertel 5722: my %allusers;
1.841 albertel 5723: my %servers = &get_servers($udom,'library');
5724: foreach my $tryserver (keys(%servers)) {
5725: my $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
5726: $udom, $tryserver);
5727: my @listing_results;
5728: if ($listing eq 'unknown_cmd') {
5729: $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
5730: $udom, $tryserver);
5731: @listing_results = split(/:/,$listing);
5732: } else {
5733: @listing_results =
5734: map { &unescape($_); } split(/:/,$listing);
5735: }
5736: if ($listing_results[0] ne 'no_such_dir' &&
5737: $listing_results[0] ne 'empty' &&
5738: $listing_results[0] ne 'con_lost') {
5739: foreach my $line (@listing_results) {
5740: my ($entry) = split(/&/,$line,2);
5741: $allusers{$entry} = 1;
5742: }
5743: }
1.253 stredwic 5744: }
5745: my $alluserstr='';
1.800 albertel 5746: foreach my $user (sort(keys(%allusers))) {
5747: $alluserstr.=$user.'&user:';
1.253 stredwic 5748: }
5749: $alluserstr=~s/:$//;
5750: return split(/:/,$alluserstr);
5751: } else {
1.800 albertel 5752: return ('missing user name');
1.253 stredwic 5753: }
5754: } elsif(!defined($alternateDirectoryRoot)) {
1.841 albertel 5755: my @all_domains = sort(&all_domains());
5756: foreach my $domain (@all_domains) {
5757: $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
5758: }
5759: return @all_domains;
5760: } else {
1.800 albertel 5761: return ('missing domain');
1.275 stredwic 5762: }
5763: }
5764:
5765: # --------------------------------------------- GetFileTimestamp
5766: # This function utilizes dirlist and returns the date stamp for
5767: # when it was last modified. It will also return an error of -1
5768: # if an error occurs
5769:
1.410 matthew 5770: ##
5771: ## FIXME: This subroutine assumes its caller knows something about the
5772: ## directory structure of the home server for the student ($root).
5773: ## Not a good assumption to make. Since this is for looking up files
5774: ## in user directories, the full path should be constructed by lond, not
5775: ## whatever machine we request data from.
5776: ##
1.275 stredwic 5777: sub GetFileTimestamp {
5778: my ($studentDomain,$studentName,$filename,$root)=@_;
1.807 albertel 5779: $studentDomain = &LONCAPA::clean_domain($studentDomain);
5780: $studentName = &LONCAPA::clean_username($studentName);
1.275 stredwic 5781: my $subdir=$studentName.'__';
5782: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
5783: my $proname="$studentDomain/$subdir/$studentName";
5784: $proname .= '/'.$filename;
1.375 matthew 5785: my ($fileStat) = &Apache::lonnet::dirlist($proname, $studentDomain,
5786: $studentName, $root);
1.275 stredwic 5787: my @stats = split('&', $fileStat);
5788: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
1.375 matthew 5789: # @stats contains first the filename, then the stat output
5790: return $stats[10]; # so this is 10 instead of 9.
1.275 stredwic 5791: } else {
5792: return -1;
1.253 stredwic 5793: }
1.26 www 5794: }
5795:
1.712 albertel 5796: sub stat_file {
5797: my ($uri) = @_;
1.787 albertel 5798: $uri = &clutter_with_no_wrapper($uri);
1.722 albertel 5799:
1.712 albertel 5800: my ($udom,$uname,$file,$dir);
5801: if ($uri =~ m-^/(uploaded|editupload)/-) {
5802: ($udom,$uname,$file) =
1.811 albertel 5803: ($uri =~ m-/(?:uploaded|editupload)/?($match_domain)/?($match_name)/?(.*)-);
1.712 albertel 5804: $file = 'userfiles/'.$file;
1.740 www 5805: $dir = &propath($udom,$uname);
1.712 albertel 5806: }
5807: if ($uri =~ m-^/res/-) {
5808: ($udom,$uname) =
1.807 albertel 5809: ($uri =~ m-/(?:res)/?($match_domain)/?($match_username)/-);
1.712 albertel 5810: $file = $uri;
5811: }
5812:
5813: if (!$udom || !$uname || !$file) {
5814: # unable to handle the uri
5815: return ();
5816: }
5817:
5818: my ($result) = &dirlist($file,$udom,$uname,$dir);
5819: my @stats = split('&', $result);
1.721 banghart 5820:
1.712 albertel 5821: if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
5822: shift(@stats); #filename is first
5823: return @stats;
5824: }
5825: return ();
5826: }
5827:
1.26 www 5828: # -------------------------------------------------------- Value of a Condition
5829:
1.713 albertel 5830: # gets the value of a specific preevaluated condition
5831: # stored in the string $env{user.state.<cid>}
5832: # or looks up a condition reference in the bighash and if if hasn't
5833: # already been evaluated recurses into docondval to get the value of
5834: # the condition, then memoizing it to
5835: # $env{user.state.<cid>.<condition>}
1.40 www 5836: sub directcondval {
5837: my $number=shift;
1.620 albertel 5838: if (!defined($env{'user.state.'.$env{'request.course.id'}})) {
1.555 albertel 5839: &Apache::lonuserstate::evalstate();
5840: }
1.713 albertel 5841: if (exists($env{'user.state.'.$env{'request.course.id'}.".$number"})) {
5842: return $env{'user.state.'.$env{'request.course.id'}.".$number"};
5843: } elsif ($number =~ /^_/) {
5844: my $sub_condition;
5845: if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
5846: &GDBM_READER(),0640)) {
5847: $sub_condition=$bighash{'conditions'.$number};
5848: untie(%bighash);
5849: }
5850: my $value = &docondval($sub_condition);
5851: &appenv('user.state.'.$env{'request.course.id'}.".$number" => $value);
5852: return $value;
5853: }
1.620 albertel 5854: if ($env{'user.state.'.$env{'request.course.id'}}) {
5855: return substr($env{'user.state.'.$env{'request.course.id'}},$number,1);
1.40 www 5856: } else {
5857: return 2;
5858: }
5859: }
5860:
1.713 albertel 5861: # get the collection of conditions for this resource
1.26 www 5862: sub condval {
5863: my $condidx=shift;
1.54 www 5864: my $allpathcond='';
1.713 albertel 5865: foreach my $cond (split(/\|/,$condidx)) {
5866: if (defined($env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond})) {
5867: $allpathcond.=
5868: '('.$env{'acc.cond.'.$env{'request.course.id'}.'.'.$cond}.')|';
5869: }
1.191 harris41 5870: }
1.54 www 5871: $allpathcond=~s/\|$//;
1.713 albertel 5872: return &docondval($allpathcond);
5873: }
5874:
5875: #evaluates an expression of conditions
5876: sub docondval {
5877: my ($allpathcond) = @_;
5878: my $result=0;
5879: if ($env{'request.course.id'}
5880: && defined($allpathcond)) {
5881: my $operand='|';
5882: my @stack;
5883: foreach my $chunk ($allpathcond=~/(\d+|_\d+\.\d+|\(|\)|\&|\|)/g) {
5884: if ($chunk eq '(') {
5885: push @stack,($operand,$result);
5886: } elsif ($chunk eq ')') {
5887: my $before=pop @stack;
5888: if (pop @stack eq '&') {
5889: $result=$result>$before?$before:$result;
5890: } else {
5891: $result=$result>$before?$result:$before;
5892: }
5893: } elsif (($chunk eq '&') || ($chunk eq '|')) {
5894: $operand=$chunk;
5895: } else {
5896: my $new=directcondval($chunk);
5897: if ($operand eq '&') {
5898: $result=$result>$new?$new:$result;
5899: } else {
5900: $result=$result>$new?$result:$new;
5901: }
5902: }
5903: }
1.26 www 5904: }
5905: return $result;
1.421 albertel 5906: }
5907:
5908: # ---------------------------------------------------- Devalidate courseresdata
5909:
5910: sub devalidatecourseresdata {
5911: my ($coursenum,$coursedomain)=@_;
5912: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 5913: &devalidate_cache_new('courseres',$hashid);
1.28 www 5914: }
5915:
1.763 www 5916:
1.200 www 5917: # --------------------------------------------------- Course Resourcedata Query
1.878 foxr 5918: #
5919: # Parameters:
5920: # $coursenum - Number of the course.
5921: # $coursedomain - Domain at which the course was created.
5922: # Returns:
5923: # A hash of the course parameters along (I think) with timestamps
5924: # and version info.
1.877 foxr 5925:
1.624 albertel 5926: sub get_courseresdata {
5927: my ($coursenum,$coursedomain)=@_;
1.200 www 5928: my $coursehom=&homeserver($coursenum,$coursedomain);
5929: my $hashid=$coursenum.':'.$coursedomain;
1.599 albertel 5930: my ($result,$cached)=&is_cached_new('courseres',$hashid);
1.624 albertel 5931: my %dumpreply;
1.417 albertel 5932: unless (defined($cached)) {
1.624 albertel 5933: %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
1.417 albertel 5934: $result=\%dumpreply;
1.251 albertel 5935: my ($tmp) = keys(%dumpreply);
5936: if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
1.599 albertel 5937: &do_cache_new('courseres',$hashid,$result,600);
1.306 albertel 5938: } elsif ($tmp =~ /^(con_lost|no_such_host)/) {
5939: return $tmp;
1.416 albertel 5940: } elsif ($tmp =~ /^(error)/) {
1.417 albertel 5941: $result=undef;
1.599 albertel 5942: &do_cache_new('courseres',$hashid,$result,600);
1.250 albertel 5943: }
5944: }
1.624 albertel 5945: return $result;
5946: }
5947:
1.633 albertel 5948: sub devalidateuserresdata {
5949: my ($uname,$udom)=@_;
5950: my $hashid="$udom:$uname";
5951: &devalidate_cache_new('userres',$hashid);
5952: }
5953:
1.624 albertel 5954: sub get_userresdata {
5955: my ($uname,$udom)=@_;
5956: #most student don\'t have any data set, check if there is some data
5957: if (&EXT_cache_status($udom,$uname)) { return undef; }
5958:
5959: my $hashid="$udom:$uname";
5960: my ($result,$cached)=&is_cached_new('userres',$hashid);
5961: if (!defined($cached)) {
5962: my %resourcedata=&dump('resourcedata',$udom,$uname);
5963: $result=\%resourcedata;
5964: &do_cache_new('userres',$hashid,$result,600);
5965: }
5966: my ($tmp)=keys(%$result);
5967: if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
5968: return $result;
5969: }
5970: #error 2 occurs when the .db doesn't exist
5971: if ($tmp!~/error: 2 /) {
1.672 albertel 5972: &logthis("<font color=\"blue\">WARNING:".
1.624 albertel 5973: " Trying to get resource data for ".
5974: $uname." at ".$udom.": ".
5975: $tmp."</font>");
5976: } elsif ($tmp=~/error: 2 /) {
1.633 albertel 5977: #&EXT_cache_set($udom,$uname);
5978: &do_cache_new('userres',$hashid,undef,600);
1.636 albertel 5979: undef($tmp); # not really an error so don't send it back
1.624 albertel 5980: }
5981: return $tmp;
5982: }
1.879 foxr 5983: #----------------------------------------------- resdata - return resource data
5984: # Purpose:
5985: # Return resource data for either users or for a course.
5986: # Parameters:
5987: # $name - Course/user name.
5988: # $domain - Name of the domain the user/course is registered on.
5989: # $type - Type of thing $name is (must be 'course' or 'user'
5990: # @which - Array of names of resources desired.
5991: # Returns:
5992: # The value of the first reasource in @which that is found in the
5993: # resource hash.
5994: # Exceptional Conditions:
5995: # If the $type passed in is not valid (not the string 'course' or
5996: # 'user', an undefined reference is returned.
5997: # If none of the resources are found, an undef is returned
1.624 albertel 5998: sub resdata {
5999: my ($name,$domain,$type,@which)=@_;
6000: my $result;
6001: if ($type eq 'course') {
6002: $result=&get_courseresdata($name,$domain);
6003: } elsif ($type eq 'user') {
6004: $result=&get_userresdata($name,$domain);
6005: }
6006: if (!ref($result)) { return $result; }
1.251 albertel 6007: foreach my $item (@which) {
1.417 albertel 6008: if (defined($result->{$item})) {
6009: return $result->{$item};
1.251 albertel 6010: }
1.250 albertel 6011: }
1.291 albertel 6012: return undef;
1.200 www 6013: }
6014:
1.379 matthew 6015: #
6016: # EXT resource caching routines
6017: #
6018:
6019: sub clear_EXT_cache_status {
1.383 albertel 6020: &delenv('cache.EXT.');
1.379 matthew 6021: }
6022:
6023: sub EXT_cache_status {
6024: my ($target_domain,$target_user) = @_;
1.383 albertel 6025: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.620 albertel 6026: if (exists($env{$cachename}) && ($env{$cachename}+600) > time) {
1.379 matthew 6027: # We know already the user has no data
6028: return 1;
6029: } else {
6030: return 0;
6031: }
6032: }
6033:
6034: sub EXT_cache_set {
6035: my ($target_domain,$target_user) = @_;
1.383 albertel 6036: my $cachename = 'cache.EXT.'.$target_user.'.'.$target_domain;
1.633 albertel 6037: #&appenv($cachename => time);
1.379 matthew 6038: }
6039:
1.28 www 6040: # --------------------------------------------------------- Value of a Variable
1.58 www 6041: sub EXT {
1.715 albertel 6042:
1.395 albertel 6043: my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
1.68 www 6044: unless ($varname) { return ''; }
1.218 albertel 6045: #get real user name/domain, courseid and symb
6046: my $courseid;
1.359 albertel 6047: my $publicuser;
1.427 www 6048: if ($symbparm) {
6049: $symbparm=&get_symb_from_alias($symbparm);
6050: }
1.218 albertel 6051: if (!($uname && $udom)) {
1.790 albertel 6052: (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
1.218 albertel 6053: if (!$symbparm) { $symbparm=$cursymb; }
6054: } else {
1.620 albertel 6055: $courseid=$env{'request.course.id'};
1.218 albertel 6056: }
1.48 www 6057: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
6058: my $rest;
1.320 albertel 6059: if (defined($therest[0])) {
1.48 www 6060: $rest=join('.',@therest);
6061: } else {
6062: $rest='';
6063: }
1.320 albertel 6064:
1.57 www 6065: my $qualifierrest=$qualifier;
6066: if ($rest) { $qualifierrest.='.'.$rest; }
6067: my $spacequalifierrest=$space;
6068: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 6069: if ($realm eq 'user') {
1.48 www 6070: # --------------------------------------------------------------- user.resource
6071: if ($space eq 'resource') {
1.651 albertel 6072: if ( (defined($Apache::lonhomework::parsing_a_problem)
6073: || defined($Apache::lonhomework::parsing_a_task))
6074: &&
1.744 albertel 6075: ($symbparm eq &symbread()) ) {
6076: # if we are in the middle of processing the resource the
6077: # get the value we are planning on committing
6078: if (defined($Apache::lonhomework::results{$qualifierrest})) {
6079: return $Apache::lonhomework::results{$qualifierrest};
6080: } else {
6081: return $Apache::lonhomework::history{$qualifierrest};
6082: }
1.335 albertel 6083: } else {
1.359 albertel 6084: my %restored;
1.620 albertel 6085: if ($publicuser || $env{'request.state'} eq 'construct') {
1.359 albertel 6086: %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
6087: } else {
6088: %restored=&restore($symbparm,$courseid,$udom,$uname);
6089: }
1.335 albertel 6090: return $restored{$qualifierrest};
6091: }
1.48 www 6092: # ----------------------------------------------------------------- user.access
6093: } elsif ($space eq 'access') {
1.218 albertel 6094: # FIXME - not supporting calls for a specific user
1.48 www 6095: return &allowed($qualifier,$rest);
6096: # ------------------------------------------ user.preferences, user.environment
6097: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.620 albertel 6098: if (($uname eq $env{'user.name'}) &&
6099: ($udom eq $env{'user.domain'})) {
6100: return $env{join('.',('environment',$qualifierrest))};
1.218 albertel 6101: } else {
1.359 albertel 6102: my %returnhash;
6103: if (!$publicuser) {
6104: %returnhash=&userenvironment($udom,$uname,
6105: $qualifierrest);
6106: }
1.218 albertel 6107: return $returnhash{$qualifierrest};
6108: }
1.48 www 6109: # ----------------------------------------------------------------- user.course
6110: } elsif ($space eq 'course') {
1.218 albertel 6111: # FIXME - not supporting calls for a specific user
1.620 albertel 6112: return $env{join('.',('request.course',$qualifier))};
1.48 www 6113: # ------------------------------------------------------------------- user.role
6114: } elsif ($space eq 'role') {
1.218 albertel 6115: # FIXME - not supporting calls for a specific user
1.620 albertel 6116: my ($role,$where)=split(/\./,$env{'request.role'});
1.48 www 6117: if ($qualifier eq 'value') {
6118: return $role;
6119: } elsif ($qualifier eq 'extent') {
6120: return $where;
6121: }
6122: # ----------------------------------------------------------------- user.domain
6123: } elsif ($space eq 'domain') {
1.218 albertel 6124: return $udom;
1.48 www 6125: # ------------------------------------------------------------------- user.name
6126: } elsif ($space eq 'name') {
1.218 albertel 6127: return $uname;
1.48 www 6128: # ---------------------------------------------------- Any other user namespace
1.29 www 6129: } else {
1.359 albertel 6130: my %reply;
6131: if (!$publicuser) {
6132: %reply=&get($space,[$qualifierrest],$udom,$uname);
6133: }
6134: return $reply{$qualifierrest};
1.48 www 6135: }
1.236 www 6136: } elsif ($realm eq 'query') {
6137: # ---------------------------------------------- pull stuff out of query string
1.384 albertel 6138: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
6139: [$spacequalifierrest]);
1.620 albertel 6140: return $env{'form.'.$spacequalifierrest};
1.236 www 6141: } elsif ($realm eq 'request') {
1.48 www 6142: # ------------------------------------------------------------- request.browser
6143: if ($space eq 'browser') {
1.430 www 6144: if ($qualifier eq 'textremote') {
1.676 albertel 6145: if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
1.430 www 6146: return 1;
6147: } else {
6148: return 0;
6149: }
6150: } else {
1.620 albertel 6151: return $env{'browser.'.$qualifier};
1.430 www 6152: }
1.57 www 6153: # ------------------------------------------------------------ request.filename
6154: } else {
1.620 albertel 6155: return $env{'request.'.$spacequalifierrest};
1.29 www 6156: }
1.28 www 6157: } elsif ($realm eq 'course') {
1.48 www 6158: # ---------------------------------------------------------- course.description
1.620 albertel 6159: return $env{'course.'.$courseid.'.'.$spacequalifierrest};
1.57 www 6160: } elsif ($realm eq 'resource') {
1.165 www 6161:
1.620 albertel 6162: if (defined($courseid) && $courseid eq $env{'request.course.id'}) {
1.539 albertel 6163: if (!$symbparm) { $symbparm=&symbread(); }
6164: }
1.693 albertel 6165:
6166: if ($space eq 'title') {
6167: if (!$symbparm) { $symbparm = $env{'request.filename'}; }
6168: return &gettitle($symbparm);
6169: }
6170:
6171: if ($space eq 'map') {
6172: my ($map) = &decode_symb($symbparm);
6173: return &symbread($map);
6174: }
6175:
6176: my ($section, $group, @groups);
1.593 albertel 6177: my ($courselevelm,$courselevel);
1.539 albertel 6178: if ($symbparm && defined($courseid) &&
1.620 albertel 6179: $courseid eq $env{'request.course.id'}) {
1.165 www 6180:
1.218 albertel 6181: #print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1.165 www 6182:
1.60 www 6183: # ----------------------------------------------------- Cascading lookup scheme
1.218 albertel 6184: my $symbp=$symbparm;
1.735 albertel 6185: my $mapp=&deversion((&decode_symb($symbp))[0]);
1.218 albertel 6186:
6187: my $symbparm=$symbp.'.'.$spacequalifierrest;
6188: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
6189:
1.620 albertel 6190: if (($env{'user.name'} eq $uname) &&
6191: ($env{'user.domain'} eq $udom)) {
6192: $section=$env{'request.course.sec'};
1.733 raeburn 6193: @groups = split(/:/,$env{'request.course.groups'});
6194: @groups=&sort_course_groups($courseid,@groups);
1.218 albertel 6195: } else {
1.539 albertel 6196: if (! defined($usection)) {
1.551 albertel 6197: $section=&getsection($udom,$uname,$courseid);
1.539 albertel 6198: } else {
6199: $section = $usection;
6200: }
1.733 raeburn 6201: @groups = &get_users_groups($udom,$uname,$courseid);
1.218 albertel 6202: }
6203:
6204: my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
6205: my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
6206: my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
6207:
1.593 albertel 6208: $courselevel=$courseid.'.'.$spacequalifierrest;
1.218 albertel 6209: my $courselevelr=$courseid.'.'.$symbparm;
1.593 albertel 6210: $courselevelm=$courseid.'.'.$mapparm;
1.69 www 6211:
1.60 www 6212: # ----------------------------------------------------------- first, check user
1.624 albertel 6213:
6214: my $userreply=&resdata($uname,$udom,'user',
6215: ($courselevelr,$courselevelm,
6216: $courselevel));
6217: if (defined($userreply)) { return $userreply; }
1.95 www 6218:
1.594 albertel 6219: # ------------------------------------------------ second, check some of course
1.684 raeburn 6220: my $coursereply;
1.691 raeburn 6221: if (@groups > 0) {
6222: $coursereply = &check_group_parms($courseid,\@groups,$symbparm,
6223: $mapparm,$spacequalifierrest);
1.684 raeburn 6224: if (defined($coursereply)) { return $coursereply; }
6225: }
1.96 www 6226:
1.684 raeburn 6227: $coursereply=&resdata($env{'course.'.$courseid.'.num'},
1.624 albertel 6228: $env{'course.'.$courseid.'.domain'},
6229: 'course',
6230: ($seclevelr,$seclevelm,$seclevel,
6231: $courselevelr));
1.287 albertel 6232: if (defined($coursereply)) { return $coursereply; }
1.200 www 6233:
1.60 www 6234: # ------------------------------------------------------ third, check map parms
1.218 albertel 6235: my %parmhash=();
6236: my $thisparm='';
6237: if (tie(%parmhash,'GDBM_File',
1.620 albertel 6238: $env{'request.course.fn'}.'_parms.db',
1.256 albertel 6239: &GDBM_READER(),0640)) {
1.218 albertel 6240: $thisparm=$parmhash{$symbparm};
6241: untie(%parmhash);
6242: }
6243: if ($thisparm) { return $thisparm; }
6244: }
1.594 albertel 6245: # ------------------------------------------ fourth, look in resource metadata
1.71 www 6246:
1.218 albertel 6247: $spacequalifierrest=~s/\./\_/;
1.282 albertel 6248: my $filename;
6249: if (!$symbparm) { $symbparm=&symbread(); }
6250: if ($symbparm) {
1.409 www 6251: $filename=(&decode_symb($symbparm))[2];
1.282 albertel 6252: } else {
1.620 albertel 6253: $filename=$env{'request.filename'};
1.282 albertel 6254: }
6255: my $metadata=&metadata($filename,$spacequalifierrest);
1.288 albertel 6256: if (defined($metadata)) { return $metadata; }
1.282 albertel 6257: $metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
1.288 albertel 6258: if (defined($metadata)) { return $metadata; }
1.142 www 6259:
1.594 albertel 6260: # ---------------------------------------------- fourth, look in rest pf course
1.593 albertel 6261: if ($symbparm && defined($courseid) &&
1.620 albertel 6262: $courseid eq $env{'request.course.id'}) {
1.624 albertel 6263: my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
6264: $env{'course.'.$courseid.'.domain'},
6265: 'course',
6266: ($courselevelm,$courselevel));
1.593 albertel 6267: if (defined($coursereply)) { return $coursereply; }
6268: }
1.145 www 6269: # ------------------------------------------------------------------ Cascade up
1.218 albertel 6270: unless ($space eq '0') {
1.336 albertel 6271: my @parts=split(/_/,$space);
6272: my $id=pop(@parts);
6273: my $part=join('_',@parts);
6274: if ($part eq '') { $part='0'; }
6275: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1.395 albertel 6276: $symbparm,$udom,$uname,$section,1);
1.337 albertel 6277: if (defined($partgeneral)) { return $partgeneral; }
1.218 albertel 6278: }
1.395 albertel 6279: if ($recurse) { return undef; }
6280: my $pack_def=&packages_tab_default($filename,$varname);
6281: if (defined($pack_def)) { return $pack_def; }
1.71 www 6282:
1.48 www 6283: # ---------------------------------------------------- Any other user namespace
6284: } elsif ($realm eq 'environment') {
6285: # ----------------------------------------------------------------- environment
1.620 albertel 6286: if (($uname eq $env{'user.name'})&&($udom eq $env{'user.domain'})) {
6287: return $env{'environment.'.$spacequalifierrest};
1.219 albertel 6288: } else {
1.770 albertel 6289: if ($uname eq 'anonymous' && $udom eq '') {
6290: return '';
6291: }
1.219 albertel 6292: my %returnhash=&userenvironment($udom,$uname,
6293: $spacequalifierrest);
6294: return $returnhash{$spacequalifierrest};
6295: }
1.28 www 6296: } elsif ($realm eq 'system') {
1.48 www 6297: # ----------------------------------------------------------------- system.time
6298: if ($space eq 'time') {
6299: return time;
6300: }
1.696 albertel 6301: } elsif ($realm eq 'server') {
6302: # ----------------------------------------------------------------- system.time
6303: if ($space eq 'name') {
6304: return $ENV{'SERVER_NAME'};
6305: }
1.28 www 6306: }
1.48 www 6307: return '';
1.61 www 6308: }
6309:
1.691 raeburn 6310: sub check_group_parms {
6311: my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;
6312: my @groupitems = ();
6313: my $resultitem;
6314: my @levels = ($symbparm,$mapparm,$what);
6315: foreach my $group (@{$groups}) {
6316: foreach my $level (@levels) {
6317: my $item = $courseid.'.['.$group.'].'.$level;
6318: push(@groupitems,$item);
6319: }
6320: }
6321: my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
6322: $env{'course.'.$courseid.'.domain'},
6323: 'course',@groupitems);
6324: return $coursereply;
6325: }
6326:
6327: sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
1.733 raeburn 6328: my ($courseid,@groups) = @_;
6329: @groups = sort(@groups);
1.691 raeburn 6330: return @groups;
6331: }
6332:
1.395 albertel 6333: sub packages_tab_default {
6334: my ($uri,$varname)=@_;
6335: my (undef,$part,$name)=split(/\./,$varname);
1.738 albertel 6336:
6337: my (@extension,@specifics,$do_default);
6338: foreach my $package (split(/,/,&metadata($uri,'packages'))) {
1.395 albertel 6339: my ($pack_type,$pack_part)=split(/_/,$package,2);
1.738 albertel 6340: if ($pack_type eq 'default') {
6341: $do_default=1;
6342: } elsif ($pack_type eq 'extension') {
6343: push(@extension,[$package,$pack_type,$pack_part]);
1.885 albertel 6344: } elsif ($pack_part eq $part || $pack_type eq 'part') {
1.848 albertel 6345: # only look at packages defaults for packages that this id is
1.738 albertel 6346: push(@specifics,[$package,$pack_type,$pack_part]);
6347: }
6348: }
6349: # first look for a package that matches the requested part id
6350: foreach my $package (@specifics) {
6351: my (undef,$pack_type,$pack_part)=@{$package};
6352: next if ($pack_part ne $part);
6353: if (defined($packagetab{"$pack_type&$name&default"})) {
6354: return $packagetab{"$pack_type&$name&default"};
6355: }
6356: }
6357: # look for any possible matching non extension_ package
6358: foreach my $package (@specifics) {
6359: my (undef,$pack_type,$pack_part)=@{$package};
1.468 albertel 6360: if (defined($packagetab{"$pack_type&$name&default"})) {
6361: return $packagetab{"$pack_type&$name&default"};
6362: }
1.585 albertel 6363: if ($pack_type eq 'part') { $pack_part='0'; }
1.468 albertel 6364: if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
6365: return $packagetab{$pack_type."_".$pack_part."&$name&default"};
1.395 albertel 6366: }
6367: }
1.738 albertel 6368: # look for any posible extension_ match
6369: foreach my $package (@extension) {
6370: my ($package,$pack_type)=@{$package};
6371: if (defined($packagetab{"$pack_type&$name&default"})) {
6372: return $packagetab{"$pack_type&$name&default"};
6373: }
6374: if (defined($packagetab{$package."&$name&default"})) {
6375: return $packagetab{$package."&$name&default"};
6376: }
6377: }
6378: # look for a global default setting
6379: if ($do_default && defined($packagetab{"default&$name&default"})) {
6380: return $packagetab{"default&$name&default"};
6381: }
1.395 albertel 6382: return undef;
6383: }
6384:
1.334 albertel 6385: sub add_prefix_and_part {
6386: my ($prefix,$part)=@_;
6387: my $keyroot;
6388: if (defined($prefix) && $prefix !~ /^__/) {
6389: # prefix that has a part already
6390: $keyroot=$prefix;
6391: } elsif (defined($prefix)) {
6392: # prefix that is missing a part
6393: if (defined($part)) { $keyroot='_'.$part.substr($prefix,1); }
6394: } else {
6395: # no prefix at all
6396: if (defined($part)) { $keyroot='_'.$part; }
6397: }
6398: return $keyroot;
6399: }
6400:
1.71 www 6401: # ---------------------------------------------------------------- Get metadata
6402:
1.599 albertel 6403: my %metaentry;
1.71 www 6404: sub metadata {
1.176 www 6405: my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
1.71 www 6406: $uri=&declutter($uri);
1.288 albertel 6407: # if it is a non metadata possible uri return quickly
1.529 albertel 6408: if (($uri eq '') ||
6409: (($uri =~ m|^/*adm/|) &&
1.698 albertel 6410: ($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
1.423 albertel 6411: ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
1.807 albertel 6412: ($uri =~ m|home/$match_username/public_html/|)) {
1.468 albertel 6413: return undef;
1.288 albertel 6414: }
1.73 www 6415: my $filename=$uri;
6416: $uri=~s/\.meta$//;
1.172 www 6417: #
6418: # Is the metadata already cached?
1.177 www 6419: # Look at timestamp of caching
1.172 www 6420: # Everything is cached by the main uri, libraries are never directly cached
6421: #
1.428 albertel 6422: if (!defined($liburi)) {
1.599 albertel 6423: my ($result,$cached)=&is_cached_new('meta',$uri);
1.428 albertel 6424: if (defined($cached)) { return $result->{':'.$what}; }
6425: }
6426: {
1.172 www 6427: #
6428: # Is this a recursive call for a library?
6429: #
1.599 albertel 6430: # if (! exists($metacache{$uri})) {
6431: # $metacache{$uri}={};
6432: # }
1.171 www 6433: if ($liburi) {
6434: $liburi=&declutter($liburi);
6435: $filename=$liburi;
1.401 bowersj2 6436: } else {
1.599 albertel 6437: &devalidate_cache_new('meta',$uri);
6438: undef(%metaentry);
1.401 bowersj2 6439: }
1.140 www 6440: my %metathesekeys=();
1.73 www 6441: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1.489 albertel 6442: my $metastring;
1.768 albertel 6443: if ($uri !~ m -^(editupload)/-) {
1.543 albertel 6444: my $file=&filelocation('',&clutter($filename));
1.599 albertel 6445: #push(@{$metaentry{$uri.'.file'}},$file);
1.543 albertel 6446: $metastring=&getfile($file);
1.489 albertel 6447: }
1.208 albertel 6448: my $parser=HTML::LCParser->new(\$metastring);
1.71 www 6449: my $token;
1.140 www 6450: undef %metathesekeys;
1.71 www 6451: while ($token=$parser->get_token) {
1.339 albertel 6452: if ($token->[0] eq 'S') {
6453: if (defined($token->[2]->{'package'})) {
1.172 www 6454: #
6455: # This is a package - get package info
6456: #
1.339 albertel 6457: my $package=$token->[2]->{'package'};
6458: my $keyroot=&add_prefix_and_part($prefix,$token->[2]->{'part'});
6459: if (defined($token->[2]->{'id'})) {
6460: $keyroot.='_'.$token->[2]->{'id'};
6461: }
1.599 albertel 6462: if ($metaentry{':packages'}) {
6463: $metaentry{':packages'}.=','.$package.$keyroot;
1.339 albertel 6464: } else {
1.599 albertel 6465: $metaentry{':packages'}=$package.$keyroot;
1.339 albertel 6466: }
1.736 albertel 6467: foreach my $pack_entry (keys(%packagetab)) {
1.432 albertel 6468: my $part=$keyroot;
6469: $part=~s/^\_//;
1.736 albertel 6470: if ($pack_entry=~/^\Q$package\E\&/ ||
6471: $pack_entry=~/^\Q$package\E_0\&/) {
6472: my ($pack,$name,$subp)=split(/\&/,$pack_entry);
1.395 albertel 6473: # ignore package.tab specified default values
6474: # here &package_tab_default() will fetch those
6475: if ($subp eq 'default') { next; }
1.736 albertel 6476: my $value=$packagetab{$pack_entry};
1.432 albertel 6477: my $unikey;
6478: if ($pack =~ /_0$/) {
6479: $unikey='parameter_0_'.$name;
6480: $part=0;
6481: } else {
6482: $unikey='parameter'.$keyroot.'_'.$name;
6483: }
1.339 albertel 6484: if ($subp eq 'display') {
6485: $value.=' [Part: '.$part.']';
6486: }
1.599 albertel 6487: $metaentry{':'.$unikey.'.part'}=$part;
1.395 albertel 6488: $metathesekeys{$unikey}=1;
1.599 albertel 6489: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6490: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.339 albertel 6491: }
1.599 albertel 6492: if (defined($metaentry{':'.$unikey.'.default'})) {
6493: $metaentry{':'.$unikey}=
6494: $metaentry{':'.$unikey.'.default'};
1.356 albertel 6495: }
1.339 albertel 6496: }
6497: }
6498: } else {
1.172 www 6499: #
6500: # This is not a package - some other kind of start tag
1.339 albertel 6501: #
6502: my $entry=$token->[1];
6503: my $unikey;
6504: if ($entry eq 'import') {
6505: $unikey='';
6506: } else {
6507: $unikey=$entry;
6508: }
6509: $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
6510:
6511: if (defined($token->[2]->{'id'})) {
6512: $unikey.='_'.$token->[2]->{'id'};
6513: }
1.175 www 6514:
1.339 albertel 6515: if ($entry eq 'import') {
1.175 www 6516: #
6517: # Importing a library here
1.339 albertel 6518: #
6519: if ($depthcount<20) {
6520: my $location=$parser->get_text('/import');
6521: my $dir=$filename;
6522: $dir=~s|[^/]*$||;
6523: $location=&filelocation($dir,$location);
1.736 albertel 6524: my $metadata =
6525: &metadata($uri,'keys', $location,$unikey,
6526: $depthcount+1);
6527: foreach my $meta (split(',',$metadata)) {
6528: $metaentry{':'.$meta}=$metaentry{':'.$meta};
6529: $metathesekeys{$meta}=1;
1.339 albertel 6530: }
6531: }
6532: } else {
6533:
6534: if (defined($token->[2]->{'name'})) {
6535: $unikey.='_'.$token->[2]->{'name'};
6536: }
6537: $metathesekeys{$unikey}=1;
1.736 albertel 6538: foreach my $param (@{$token->[3]}) {
6539: $metaentry{':'.$unikey.'.'.$param} =
6540: $token->[2]->{$param};
1.339 albertel 6541: }
6542: my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
1.599 albertel 6543: my $default=$metaentry{':'.$unikey.'.default'};
1.339 albertel 6544: if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
6545: # only ws inside the tag, and not in default, so use default
6546: # as value
1.599 albertel 6547: $metaentry{':'.$unikey}=$default;
1.339 albertel 6548: } else {
1.321 albertel 6549: # either something interesting inside the tag or default
6550: # uninteresting
1.599 albertel 6551: $metaentry{':'.$unikey}=$internaltext;
1.339 albertel 6552: }
1.172 www 6553: # end of not-a-package not-a-library import
1.339 albertel 6554: }
1.172 www 6555: # end of not-a-package start tag
1.339 albertel 6556: }
1.172 www 6557: # the next is the end of "start tag"
1.339 albertel 6558: }
6559: }
1.483 albertel 6560: my ($extension) = ($uri =~ /\.(\w+)$/);
1.883 albertel 6561: $extension = lc($extension);
6562: if ($extension eq 'htm') { $extension='html'; }
6563:
1.737 albertel 6564: foreach my $key (keys(%packagetab)) {
1.483 albertel 6565: #no specific packages #how's our extension
6566: if ($key!~/^extension_\Q$extension\E&/) { next; }
1.488 albertel 6567: &metadata_create_package_def($uri,$key,'extension_'.$extension,
1.483 albertel 6568: \%metathesekeys);
6569: }
1.883 albertel 6570:
6571: if (!exists($metaentry{':packages'})
6572: || $packagetab{"import_defaults&extension_$extension"}) {
1.737 albertel 6573: foreach my $key (keys(%packagetab)) {
1.483 albertel 6574: #no specific packages well let's get default then
6575: if ($key!~/^default&/) { next; }
1.488 albertel 6576: &metadata_create_package_def($uri,$key,'default',
1.483 albertel 6577: \%metathesekeys);
6578: }
6579: }
1.338 www 6580: # are there custom rights to evaluate
1.599 albertel 6581: if ($metaentry{':copyright'} eq 'custom') {
1.339 albertel 6582:
1.338 www 6583: #
6584: # Importing a rights file here
1.339 albertel 6585: #
6586: unless ($depthcount) {
1.599 albertel 6587: my $location=$metaentry{':customdistributionfile'};
1.339 albertel 6588: my $dir=$filename;
6589: $dir=~s|[^/]*$||;
6590: $location=&filelocation($dir,$location);
1.736 albertel 6591: my $rights_metadata =
6592: &metadata($uri,'keys',$location,'_rights',
6593: $depthcount+1);
6594: foreach my $rights (split(',',$rights_metadata)) {
6595: #$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
6596: $metathesekeys{$rights}=1;
1.339 albertel 6597: }
6598: }
6599: }
1.737 albertel 6600: # uniqifiy package listing
6601: my %seen;
6602: my @uniq_packages =
6603: grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
6604: $metaentry{':packages'} = join(',',@uniq_packages);
6605:
6606: $metaentry{':keys'} = join(',',keys(%metathesekeys));
1.599 albertel 6607: &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
6608: $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
1.699 albertel 6609: &do_cache_new('meta',$uri,\%metaentry,60*60);
1.177 www 6610: # this is the end of "was not already recently cached
1.71 www 6611: }
1.599 albertel 6612: return $metaentry{':'.$what};
1.261 albertel 6613: }
6614:
1.488 albertel 6615: sub metadata_create_package_def {
1.483 albertel 6616: my ($uri,$key,$package,$metathesekeys)=@_;
6617: my ($pack,$name,$subp)=split(/\&/,$key);
6618: if ($subp eq 'default') { next; }
6619:
1.599 albertel 6620: if (defined($metaentry{':packages'})) {
6621: $metaentry{':packages'}.=','.$package;
1.483 albertel 6622: } else {
1.599 albertel 6623: $metaentry{':packages'}=$package;
1.483 albertel 6624: }
6625: my $value=$packagetab{$key};
6626: my $unikey;
6627: $unikey='parameter_0_'.$name;
1.599 albertel 6628: $metaentry{':'.$unikey.'.part'}=0;
1.483 albertel 6629: $$metathesekeys{$unikey}=1;
1.599 albertel 6630: unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
6631: $metaentry{':'.$unikey.'.'.$subp}=$value;
1.483 albertel 6632: }
1.599 albertel 6633: if (defined($metaentry{':'.$unikey.'.default'})) {
6634: $metaentry{':'.$unikey}=
6635: $metaentry{':'.$unikey.'.default'};
1.483 albertel 6636: }
6637: }
6638:
1.261 albertel 6639: sub metadata_generate_part0 {
6640: my ($metadata,$metacache,$uri) = @_;
6641: my %allnames;
1.737 albertel 6642: foreach my $metakey (keys(%$metadata)) {
1.261 albertel 6643: if ($metakey=~/^parameter\_(.*)/) {
1.428 albertel 6644: my $part=$$metacache{':'.$metakey.'.part'};
6645: my $name=$$metacache{':'.$metakey.'.name'};
1.356 albertel 6646: if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
1.261 albertel 6647: $allnames{$name}=$part;
6648: }
6649: }
6650: }
6651: foreach my $name (keys(%allnames)) {
6652: $$metadata{"parameter_0_$name"}=1;
1.428 albertel 6653: my $key=":parameter_0_$name";
1.261 albertel 6654: $$metacache{"$key.part"}='0';
6655: $$metacache{"$key.name"}=$name;
1.428 albertel 6656: $$metacache{"$key.type"}=$$metacache{':parameter_'.
1.261 albertel 6657: $allnames{$name}.'_'.$name.
6658: '.type'};
1.428 albertel 6659: my $olddis=$$metacache{':parameter_'.$allnames{$name}.'_'.$name.
1.261 albertel 6660: '.display'};
1.644 www 6661: my $expr='[Part: '.$allnames{$name}.']';
1.479 albertel 6662: $olddis=~s/\Q$expr\E/\[Part: 0\]/;
1.261 albertel 6663: $$metacache{"$key.display"}=$olddis;
6664: }
1.71 www 6665: }
6666:
1.764 albertel 6667: # ------------------------------------------------------ Devalidate title cache
6668:
6669: sub devalidate_title_cache {
6670: my ($url)=@_;
6671: if (!$env{'request.course.id'}) { return; }
6672: my $symb=&symbread($url);
6673: if (!$symb) { return; }
6674: my $key=$env{'request.course.id'}."\0".$symb;
6675: &devalidate_cache_new('title',$key);
6676: }
6677:
1.301 www 6678: # ------------------------------------------------- Get the title of a resource
6679:
6680: sub gettitle {
6681: my $urlsymb=shift;
6682: my $symb=&symbread($urlsymb);
1.534 albertel 6683: if ($symb) {
1.620 albertel 6684: my $key=$env{'request.course.id'}."\0".$symb;
1.599 albertel 6685: my ($result,$cached)=&is_cached_new('title',$key);
1.575 albertel 6686: if (defined($cached)) {
6687: return $result;
6688: }
1.534 albertel 6689: my ($map,$resid,$url)=&decode_symb($symb);
6690: my $title='';
6691: my %bighash;
1.620 albertel 6692: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.534 albertel 6693: &GDBM_READER(),0640)) {
6694: my $mapid=$bighash{'map_pc_'.&clutter($map)};
6695: $title=$bighash{'title_'.$mapid.'.'.$resid};
6696: untie %bighash;
6697: }
6698: $title=~s/\&colon\;/\:/gs;
6699: if ($title) {
1.599 albertel 6700: return &do_cache_new('title',$key,$title,600);
1.534 albertel 6701: }
6702: $urlsymb=$url;
6703: }
6704: my $title=&metadata($urlsymb,'title');
6705: if (!$title) { $title=(split('/',$urlsymb))[-1]; }
6706: return $title;
1.301 www 6707: }
1.613 albertel 6708:
1.614 albertel 6709: sub get_slot {
6710: my ($which,$cnum,$cdom)=@_;
6711: if (!$cnum || !$cdom) {
1.790 albertel 6712: (undef,my $courseid)=&whichuser();
1.620 albertel 6713: $cdom=$env{'course.'.$courseid.'.domain'};
6714: $cnum=$env{'course.'.$courseid.'.num'};
1.614 albertel 6715: }
1.703 albertel 6716: my $key=join("\0",'slots',$cdom,$cnum,$which);
6717: my %slotinfo;
6718: if (exists($remembered{$key})) {
6719: $slotinfo{$which} = $remembered{$key};
6720: } else {
6721: %slotinfo=&get('slots',[$which],$cdom,$cnum);
6722: &Apache::lonhomework::showhash(%slotinfo);
6723: my ($tmp)=keys(%slotinfo);
6724: if ($tmp=~/^error:/) { return (); }
6725: $remembered{$key} = $slotinfo{$which};
6726: }
1.616 albertel 6727: if (ref($slotinfo{$which}) eq 'HASH') {
6728: return %{$slotinfo{$which}};
6729: }
6730: return $slotinfo{$which};
1.614 albertel 6731: }
1.31 www 6732: # ------------------------------------------------- Update symbolic store links
6733:
6734: sub symblist {
6735: my ($mapname,%newhash)=@_;
1.438 www 6736: $mapname=&deversion(&declutter($mapname));
1.31 www 6737: my %hash;
1.620 albertel 6738: if (($env{'request.course.fn'}) && (%newhash)) {
6739: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 6740: &GDBM_WRCREAT(),0640)) {
1.711 albertel 6741: foreach my $url (keys %newhash) {
6742: next if ($url eq 'last_known'
6743: && $env{'form.no_update_last_known'});
6744: $hash{declutter($url)}=&encode_symb($mapname,
6745: $newhash{$url}->[1],
6746: $newhash{$url}->[0]);
1.191 harris41 6747: }
1.31 www 6748: if (untie(%hash)) {
6749: return 'ok';
6750: }
6751: }
6752: }
6753: return 'error';
1.212 www 6754: }
6755:
6756: # --------------------------------------------------------------- Verify a symb
6757:
6758: sub symbverify {
1.510 www 6759: my ($symb,$thisurl)=@_;
6760: my $thisfn=$thisurl;
1.439 www 6761: $thisfn=&declutter($thisfn);
1.215 www 6762: # direct jump to resource in page or to a sequence - will construct own symbs
6763: if ($thisfn=~/\.(page|sequence)$/) { return 1; }
6764: # check URL part
1.409 www 6765: my ($map,$resid,$url)=&decode_symb($symb);
1.439 www 6766:
1.431 www 6767: unless ($url eq $thisfn) { return 0; }
1.213 www 6768:
1.216 www 6769: $symb=&symbclean($symb);
1.510 www 6770: $thisurl=&deversion($thisurl);
1.439 www 6771: $thisfn=&deversion($thisfn);
1.213 www 6772:
6773: my %bighash;
6774: my $okay=0;
1.431 www 6775:
1.620 albertel 6776: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 6777: &GDBM_READER(),0640)) {
1.510 www 6778: my $ids=$bighash{'ids_'.&clutter($thisurl)};
1.216 www 6779: unless ($ids) {
1.510 www 6780: $ids=$bighash{'ids_/'.$thisurl};
1.216 www 6781: }
6782: if ($ids) {
6783: # ------------------------------------------------------------------- Has ID(s)
1.800 albertel 6784: foreach my $id (split(/\,/,$ids)) {
6785: my ($mapid,$resid)=split(/\./,$id);
1.216 www 6786: if (
6787: &symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
6788: eq $symb) {
1.620 albertel 6789: if (($env{'request.role.adv'}) ||
1.800 albertel 6790: $bighash{'encrypted_'.$id} eq $env{'request.enc'}) {
1.582 albertel 6791: $okay=1;
6792: }
6793: }
1.216 www 6794: }
6795: }
1.213 www 6796: untie(%bighash);
6797: }
6798: return $okay;
1.31 www 6799: }
6800:
1.210 www 6801: # --------------------------------------------------------------- Clean-up symb
6802:
6803: sub symbclean {
6804: my $symb=shift;
1.568 albertel 6805: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
1.210 www 6806: # remove version from map
6807: $symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
1.215 www 6808:
1.210 www 6809: # remove version from URL
6810: $symb=~s/\.(\d+)\.(\w+)$/\.$2/;
1.213 www 6811:
1.507 www 6812: # remove wrapper
6813:
1.510 www 6814: $symb=~s/(\_\_\_\d+\_\_\_)adm\/wrapper\/(res\/)*/$1/;
1.694 albertel 6815: $symb=~s/(\_\_\_\d+\_\_\_)adm\/coursedocs\/showdoc\/(res\/)*/$1/;
1.210 www 6816: return $symb;
1.409 www 6817: }
6818:
6819: # ---------------------------------------------- Split symb to find map and url
1.429 albertel 6820:
6821: sub encode_symb {
6822: my ($map,$resid,$url)=@_;
6823: return &symbclean(&declutter($map).'___'.$resid.'___'.&declutter($url));
6824: }
1.409 www 6825:
6826: sub decode_symb {
1.568 albertel 6827: my $symb=shift;
6828: if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
6829: my ($map,$resid,$url)=split(/___/,$symb);
1.413 www 6830: return (&fixversion($map),$resid,&fixversion($url));
6831: }
6832:
6833: sub fixversion {
6834: my $fn=shift;
1.609 banghart 6835: if ($fn=~/^(adm|uploaded|editupload|public)/) { return $fn; }
1.435 www 6836: my %bighash;
6837: my $uri=&clutter($fn);
1.620 albertel 6838: my $key=$env{'request.course.id'}.'_'.$uri;
1.440 www 6839: # is this cached?
1.599 albertel 6840: my ($result,$cached)=&is_cached_new('courseresversion',$key);
1.440 www 6841: if (defined($cached)) { return $result; }
6842: # unfortunately not cached, or expired
1.620 albertel 6843: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.440 www 6844: &GDBM_READER(),0640)) {
6845: if ($bighash{'version_'.$uri}) {
6846: my $version=$bighash{'version_'.$uri};
1.444 www 6847: unless (($version eq 'mostrecent') ||
6848: ($version==&getversion($uri))) {
1.440 www 6849: $uri=~s/\.(\w+)$/\.$version\.$1/;
6850: }
6851: }
6852: untie %bighash;
1.413 www 6853: }
1.599 albertel 6854: return &do_cache_new('courseresversion',$key,&declutter($uri),600);
1.438 www 6855: }
6856:
6857: sub deversion {
6858: my $url=shift;
6859: $url=~s/\.\d+\.(\w+)$/\.$1/;
6860: return $url;
1.210 www 6861: }
6862:
1.31 www 6863: # ------------------------------------------------------ Return symb list entry
6864:
6865: sub symbread {
1.249 www 6866: my ($thisfn,$donotrecurse)=@_;
1.542 albertel 6867: my $cache_str='request.symbread.cached.'.$thisfn;
1.620 albertel 6868: if (defined($env{$cache_str})) { return $env{$cache_str}; }
1.242 www 6869: # no filename provided? try from environment
1.44 www 6870: unless ($thisfn) {
1.620 albertel 6871: if ($env{'request.symb'}) {
6872: return $env{$cache_str}=&symbclean($env{'request.symb'});
1.539 albertel 6873: }
1.620 albertel 6874: $thisfn=$env{'request.filename'};
1.44 www 6875: }
1.569 albertel 6876: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.242 www 6877: # is that filename actually a symb? Verify, clean, and return
6878: if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
1.539 albertel 6879: if (&symbverify($thisfn,$1)) {
1.620 albertel 6880: return $env{$cache_str}=&symbclean($thisfn);
1.539 albertel 6881: }
1.242 www 6882: }
1.44 www 6883: $thisfn=declutter($thisfn);
1.31 www 6884: my %hash;
1.37 www 6885: my %bighash;
6886: my $syval='';
1.620 albertel 6887: if (($env{'request.course.fn'}) && ($thisfn)) {
1.481 raeburn 6888: my $targetfn = $thisfn;
1.609 banghart 6889: if ( ($thisfn =~ m/^(uploaded|editupload)\//) && ($thisfn !~ m/\.(page|sequence)$/) ) {
1.481 raeburn 6890: $targetfn = 'adm/wrapper/'.$thisfn;
6891: }
1.687 albertel 6892: if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) {
6893: $targetfn=$1;
6894: }
1.620 albertel 6895: if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
1.256 albertel 6896: &GDBM_READER(),0640)) {
1.481 raeburn 6897: $syval=$hash{$targetfn};
1.37 www 6898: untie(%hash);
6899: }
6900: # ---------------------------------------------------------- There was an entry
6901: if ($syval) {
1.601 albertel 6902: #unless ($syval=~/\_\d+$/) {
1.620 albertel 6903: #unless ($env{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.601 albertel 6904: #&appenv('request.ambiguous' => $thisfn);
1.620 albertel 6905: #return $env{$cache_str}='';
1.601 albertel 6906: #}
6907: #$syval.=$1;
6908: #}
1.37 www 6909: } else {
6910: # ------------------------------------------------------- Was not in symb table
1.620 albertel 6911: if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
1.256 albertel 6912: &GDBM_READER(),0640)) {
1.37 www 6913: # ---------------------------------------------- Get ID(s) for current resource
1.280 www 6914: my $ids=$bighash{'ids_'.&clutter($thisfn)};
1.65 www 6915: unless ($ids) {
6916: $ids=$bighash{'ids_/'.$thisfn};
1.242 www 6917: }
6918: unless ($ids) {
6919: # alias?
6920: $ids=$bighash{'mapalias_'.$thisfn};
1.65 www 6921: }
1.37 www 6922: if ($ids) {
6923: # ------------------------------------------------------------------- Has ID(s)
6924: my @possibilities=split(/\,/,$ids);
1.39 www 6925: if ($#possibilities==0) {
6926: # ----------------------------------------------- There is only one possibility
1.37 www 6927: my ($mapid,$resid)=split(/\./,$ids);
1.626 albertel 6928: $syval=&encode_symb($bighash{'map_id_'.$mapid},
6929: $resid,$thisfn);
1.249 www 6930: } elsif (!$donotrecurse) {
1.39 www 6931: # ------------------------------------------ There is more than one possibility
6932: my $realpossible=0;
1.800 albertel 6933: foreach my $id (@possibilities) {
6934: my $file=$bighash{'src_'.$id};
1.39 www 6935: if (&allowed('bre',$file)) {
1.800 albertel 6936: my ($mapid,$resid)=split(/\./,$id);
1.39 www 6937: if ($bighash{'map_type_'.$mapid} ne 'page') {
6938: $realpossible++;
1.626 albertel 6939: $syval=&encode_symb($bighash{'map_id_'.$mapid},
6940: $resid,$thisfn);
1.39 www 6941: }
6942: }
1.191 harris41 6943: }
1.39 www 6944: if ($realpossible!=1) { $syval=''; }
1.249 www 6945: } else {
6946: $syval='';
1.37 www 6947: }
6948: }
6949: untie(%bighash)
1.481 raeburn 6950: }
1.31 www 6951: }
1.62 www 6952: if ($syval) {
1.620 albertel 6953: return $env{$cache_str}=$syval;
1.62 www 6954: }
1.31 www 6955: }
1.44 www 6956: &appenv('request.ambiguous' => $thisfn);
1.620 albertel 6957: return $env{$cache_str}='';
1.31 www 6958: }
6959:
6960: # ---------------------------------------------------------- Return random seed
6961:
1.32 www 6962: sub numval {
6963: my $txt=shift;
6964: $txt=~tr/A-J/0-9/;
6965: $txt=~tr/a-j/0-9/;
6966: $txt=~tr/K-T/0-9/;
6967: $txt=~tr/k-t/0-9/;
6968: $txt=~tr/U-Z/0-5/;
6969: $txt=~tr/u-z/0-5/;
6970: $txt=~s/\D//g;
1.564 albertel 6971: if ($_64bit) { if ($txt > 2**32) { return -1; } }
1.32 www 6972: return int($txt);
1.368 albertel 6973: }
6974:
1.484 albertel 6975: sub numval2 {
6976: my $txt=shift;
6977: $txt=~tr/A-J/0-9/;
6978: $txt=~tr/a-j/0-9/;
6979: $txt=~tr/K-T/0-9/;
6980: $txt=~tr/k-t/0-9/;
6981: $txt=~tr/U-Z/0-5/;
6982: $txt=~tr/u-z/0-5/;
6983: $txt=~s/\D//g;
6984: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
6985: my $total;
6986: foreach my $val (@txts) { $total+=$val; }
1.564 albertel 6987: if ($_64bit) { if ($total > 2**32) { return -1; } }
1.484 albertel 6988: return int($total);
6989: }
6990:
1.575 albertel 6991: sub numval3 {
6992: use integer;
6993: my $txt=shift;
6994: $txt=~tr/A-J/0-9/;
6995: $txt=~tr/a-j/0-9/;
6996: $txt=~tr/K-T/0-9/;
6997: $txt=~tr/k-t/0-9/;
6998: $txt=~tr/U-Z/0-5/;
6999: $txt=~tr/u-z/0-5/;
7000: $txt=~s/\D//g;
7001: my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
7002: my $total;
7003: foreach my $val (@txts) { $total+=$val; }
7004: if ($_64bit) { $total=(($total<<32)>>32); }
7005: return $total;
7006: }
7007:
1.675 albertel 7008: sub digest {
7009: my ($data)=@_;
7010: my $digest=&Digest::MD5::md5($data);
7011: my ($a,$b,$c,$d)=unpack("iiii",$digest);
7012: my ($e,$f);
7013: {
7014: use integer;
7015: $e=($a+$b);
7016: $f=($c+$d);
7017: if ($_64bit) {
7018: $e=(($e<<32)>>32);
7019: $f=(($f<<32)>>32);
7020: }
7021: }
7022: if (wantarray) {
7023: return ($e,$f);
7024: } else {
7025: my $g;
7026: {
7027: use integer;
7028: $g=($e+$f);
7029: if ($_64bit) {
7030: $g=(($g<<32)>>32);
7031: }
7032: }
7033: return $g;
7034: }
7035: }
7036:
1.368 albertel 7037: sub latest_rnd_algorithm_id {
1.675 albertel 7038: return '64bit5';
1.366 albertel 7039: }
1.32 www 7040:
1.503 albertel 7041: sub get_rand_alg {
7042: my ($courseid)=@_;
1.790 albertel 7043: if (!$courseid) { $courseid=(&whichuser())[1]; }
1.503 albertel 7044: if ($courseid) {
1.620 albertel 7045: return $env{"course.$courseid.rndseed"};
1.503 albertel 7046: }
7047: return &latest_rnd_algorithm_id();
7048: }
7049:
1.562 albertel 7050: sub validCODE {
7051: my ($CODE)=@_;
7052: if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
7053: return 0;
7054: }
7055:
1.491 albertel 7056: sub getCODE {
1.620 albertel 7057: if (&validCODE($env{'form.CODE'})) { return $env{'form.CODE'}; }
1.618 albertel 7058: if ( (defined($Apache::lonhomework::parsing_a_problem) ||
7059: defined($Apache::lonhomework::parsing_a_task) ) &&
7060: &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
1.491 albertel 7061: return $Apache::lonhomework::history{'resource.CODE'};
7062: }
7063: return undef;
7064: }
7065:
1.31 www 7066: sub rndseed {
1.155 albertel 7067: my ($symb,$courseid,$domain,$username)=@_;
1.790 albertel 7068: my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
1.155 albertel 7069: if (!$symb) {
1.366 albertel 7070: unless ($symb=$wsymb) { return time; }
7071: }
7072: if (!$courseid) { $courseid=$wcourseid; }
7073: if (!$domain) { $domain=$wdomain; }
7074: if (!$username) { $username=$wusername }
1.503 albertel 7075: my $which=&get_rand_alg();
1.803 albertel 7076:
1.491 albertel 7077: if (defined(&getCODE())) {
1.675 albertel 7078: if ($which eq '64bit5') {
7079: return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
7080: } elsif ($which eq '64bit4') {
1.575 albertel 7081: return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
7082: } else {
7083: return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
7084: }
1.675 albertel 7085: } elsif ($which eq '64bit5') {
7086: return &rndseed_64bit5($symb,$courseid,$domain,$username);
1.575 albertel 7087: } elsif ($which eq '64bit4') {
7088: return &rndseed_64bit4($symb,$courseid,$domain,$username);
1.501 albertel 7089: } elsif ($which eq '64bit3') {
7090: return &rndseed_64bit3($symb,$courseid,$domain,$username);
1.443 albertel 7091: } elsif ($which eq '64bit2') {
7092: return &rndseed_64bit2($symb,$courseid,$domain,$username);
1.366 albertel 7093: } elsif ($which eq '64bit') {
7094: return &rndseed_64bit($symb,$courseid,$domain,$username);
7095: }
7096: return &rndseed_32bit($symb,$courseid,$domain,$username);
7097: }
7098:
7099: sub rndseed_32bit {
7100: my ($symb,$courseid,$domain,$username)=@_;
7101: {
7102: use integer;
7103: my $symbchck=unpack("%32C*",$symb) << 27;
7104: my $symbseed=numval($symb) << 22;
7105: my $namechck=unpack("%32C*",$username) << 17;
7106: my $nameseed=numval($username) << 12;
7107: my $domainseed=unpack("%32C*",$domain) << 7;
7108: my $courseseed=unpack("%32C*",$courseid);
7109: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.790 albertel 7110: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7111: #&logthis("rndseed :$num:$symb");
1.564 albertel 7112: if ($_64bit) { $num=(($num<<32)>>32); }
1.366 albertel 7113: return $num;
7114: }
7115: }
7116:
7117: sub rndseed_64bit {
7118: my ($symb,$courseid,$domain,$username)=@_;
7119: {
7120: use integer;
7121: my $symbchck=unpack("%32S*",$symb) << 21;
7122: my $symbseed=numval($symb) << 10;
7123: my $namechck=unpack("%32S*",$username);
7124:
7125: my $nameseed=numval($username) << 21;
7126: my $domainseed=unpack("%32S*",$domain) << 10;
7127: my $courseseed=unpack("%32S*",$courseid);
7128:
7129: my $num1=$symbchck+$symbseed+$namechck;
7130: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7131: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7132: #&logthis("rndseed :$num:$symb");
1.564 albertel 7133: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.366 albertel 7134: return "$num1,$num2";
1.155 albertel 7135: }
1.366 albertel 7136: }
7137:
1.443 albertel 7138: sub rndseed_64bit2 {
7139: my ($symb,$courseid,$domain,$username)=@_;
7140: {
7141: use integer;
7142: # strings need to be an even # of cahracters long, it it is odd the
7143: # last characters gets thrown away
7144: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7145: my $symbseed=numval($symb) << 10;
7146: my $namechck=unpack("%32S*",$username.' ');
7147:
7148: my $nameseed=numval($username) << 21;
1.501 albertel 7149: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7150: my $courseseed=unpack("%32S*",$courseid.' ');
7151:
7152: my $num1=$symbchck+$symbseed+$namechck;
7153: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7154: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7155: #&logthis("rndseed :$num:$symb");
1.803 albertel 7156: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.501 albertel 7157: return "$num1,$num2";
7158: }
7159: }
7160:
7161: sub rndseed_64bit3 {
7162: my ($symb,$courseid,$domain,$username)=@_;
7163: {
7164: use integer;
7165: # strings need to be an even # of cahracters long, it it is odd the
7166: # last characters gets thrown away
7167: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7168: my $symbseed=numval2($symb) << 10;
7169: my $namechck=unpack("%32S*",$username.' ');
7170:
7171: my $nameseed=numval2($username) << 21;
1.443 albertel 7172: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7173: my $courseseed=unpack("%32S*",$courseid.' ');
7174:
7175: my $num1=$symbchck+$symbseed+$namechck;
7176: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7177: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7178: #&logthis("rndseed :$num1:$num2:$_64bit");
1.564 albertel 7179: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7180:
1.503 albertel 7181: return "$num1:$num2";
1.443 albertel 7182: }
7183: }
7184:
1.575 albertel 7185: sub rndseed_64bit4 {
7186: my ($symb,$courseid,$domain,$username)=@_;
7187: {
7188: use integer;
7189: # strings need to be an even # of cahracters long, it it is odd the
7190: # last characters gets thrown away
7191: my $symbchck=unpack("%32S*",$symb.' ') << 21;
7192: my $symbseed=numval3($symb) << 10;
7193: my $namechck=unpack("%32S*",$username.' ');
7194:
7195: my $nameseed=numval3($username) << 21;
7196: my $domainseed=unpack("%32S*",$domain.' ') << 10;
7197: my $courseseed=unpack("%32S*",$courseid.' ');
7198:
7199: my $num1=$symbchck+$symbseed+$namechck;
7200: my $num2=$nameseed+$domainseed+$courseseed;
1.790 albertel 7201: #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
7202: #&logthis("rndseed :$num1:$num2:$_64bit");
1.575 albertel 7203: if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
7204:
7205: return "$num1:$num2";
7206: }
7207: }
7208:
1.675 albertel 7209: sub rndseed_64bit5 {
7210: my ($symb,$courseid,$domain,$username)=@_;
7211: my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
7212: return "$num1:$num2";
7213: }
7214:
1.366 albertel 7215: sub rndseed_CODE_64bit {
7216: my ($symb,$courseid,$domain,$username)=@_;
1.155 albertel 7217: {
1.366 albertel 7218: use integer;
1.443 albertel 7219: my $symbchck=unpack("%32S*",$symb.' ') << 16;
1.484 albertel 7220: my $symbseed=numval2($symb);
1.491 albertel 7221: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7222: my $CODEseed=numval(&getCODE());
1.443 albertel 7223: my $courseseed=unpack("%32S*",$courseid.' ');
1.484 albertel 7224: my $num1=$symbseed+$CODEchck;
7225: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7226: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7227: #&logthis("rndseed :$num1:$num2:$symb");
1.564 albertel 7228: if ($_64bit) { $num1=(($num1<<32)>>32); }
7229: if ($_64bit) { $num2=(($num2<<32)>>32); }
1.503 albertel 7230: return "$num1:$num2";
1.366 albertel 7231: }
7232: }
7233:
1.575 albertel 7234: sub rndseed_CODE_64bit4 {
7235: my ($symb,$courseid,$domain,$username)=@_;
7236: {
7237: use integer;
7238: my $symbchck=unpack("%32S*",$symb.' ') << 16;
7239: my $symbseed=numval3($symb);
7240: my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
7241: my $CODEseed=numval3(&getCODE());
7242: my $courseseed=unpack("%32S*",$courseid.' ');
7243: my $num1=$symbseed+$CODEchck;
7244: my $num2=$CODEseed+$courseseed+$symbchck;
1.790 albertel 7245: #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
7246: #&logthis("rndseed :$num1:$num2:$symb");
1.575 albertel 7247: if ($_64bit) { $num1=(($num1<<32)>>32); }
7248: if ($_64bit) { $num2=(($num2<<32)>>32); }
7249: return "$num1:$num2";
7250: }
7251: }
7252:
1.675 albertel 7253: sub rndseed_CODE_64bit5 {
7254: my ($symb,$courseid,$domain,$username)=@_;
7255: my $code = &getCODE();
7256: my ($num1,$num2)=&digest("$symb,$courseid,$code");
7257: return "$num1:$num2";
7258: }
7259:
1.366 albertel 7260: sub setup_random_from_rndseed {
7261: my ($rndseed)=@_;
1.503 albertel 7262: if ($rndseed =~/([,:])/) {
7263: my ($num1,$num2)=split(/[,:]/,$rndseed);
1.366 albertel 7264: &Math::Random::random_set_seed(abs($num1),abs($num2));
7265: } else {
7266: &Math::Random::random_set_seed_from_phrase($rndseed);
1.98 albertel 7267: }
1.36 albertel 7268: }
7269:
1.474 albertel 7270: sub latest_receipt_algorithm_id {
1.835 albertel 7271: return 'receipt3';
1.474 albertel 7272: }
7273:
1.480 www 7274: sub recunique {
7275: my $fucourseid=shift;
7276: my $unique;
1.835 albertel 7277: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
7278: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7279: $unique=$env{"course.$fucourseid.internal.encseed"};
1.480 www 7280: } else {
7281: $unique=$perlvar{'lonReceipt'};
7282: }
7283: return unpack("%32C*",$unique);
7284: }
7285:
7286: sub recprefix {
7287: my $fucourseid=shift;
7288: my $prefix;
1.835 albertel 7289: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
7290: $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
1.620 albertel 7291: $prefix=$env{"course.$fucourseid.internal.encpref"};
1.480 www 7292: } else {
7293: $prefix=$perlvar{'lonHostID'};
7294: }
7295: return unpack("%32C*",$prefix);
7296: }
7297:
1.76 www 7298: sub ireceipt {
1.474 albertel 7299: my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
1.835 albertel 7300:
7301: my $return =&recprefix($fucourseid).'-';
7302:
7303: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
7304: $env{'request.state'} eq 'construct') {
7305: $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
7306: return $return;
7307: }
7308:
1.76 www 7309: my $cuname=unpack("%32C*",$funame);
7310: my $cudom=unpack("%32C*",$fudom);
7311: my $cucourseid=unpack("%32C*",$fucourseid);
7312: my $cusymb=unpack("%32C*",$fusymb);
1.480 www 7313: my $cunique=&recunique($fucourseid);
1.474 albertel 7314: my $cpart=unpack("%32S*",$part);
1.835 albertel 7315: if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
7316:
1.790 albertel 7317: #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
1.474 albertel 7318:
7319: $return.= ($cunique%$cuname+
7320: $cunique%$cudom+
7321: $cusymb%$cuname+
7322: $cusymb%$cudom+
7323: $cucourseid%$cuname+
7324: $cucourseid%$cudom+
7325: $cpart%$cuname+
7326: $cpart%$cudom);
7327: } else {
7328: $return.= ($cunique%$cuname+
7329: $cunique%$cudom+
7330: $cusymb%$cuname+
7331: $cusymb%$cudom+
7332: $cucourseid%$cuname+
7333: $cucourseid%$cudom);
7334: }
7335: return $return;
1.76 www 7336: }
7337:
7338: sub receipt {
1.474 albertel 7339: my ($part)=@_;
1.790 albertel 7340: my ($symb,$courseid,$domain,$name) = &whichuser();
1.474 albertel 7341: return &ireceipt($name,$domain,$courseid,$symb,$part);
1.76 www 7342: }
1.260 ng 7343:
1.790 albertel 7344: sub whichuser {
7345: my ($passedsymb)=@_;
7346: my ($symb,$courseid,$domain,$name,$publicuser);
7347: if (defined($env{'form.grade_symb'})) {
7348: my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
7349: my $allowed=&allowed('vgr',$tmp_courseid);
7350: if (!$allowed &&
7351: exists($env{'request.course.sec'}) &&
7352: $env{'request.course.sec'} !~ /^\s*$/) {
7353: $allowed=&allowed('vgr',$tmp_courseid.
7354: '/'.$env{'request.course.sec'});
7355: }
7356: if ($allowed) {
7357: ($symb)=&get_env_multiple('form.grade_symb');
7358: $courseid=$tmp_courseid;
7359: ($domain)=&get_env_multiple('form.grade_domain');
7360: ($name)=&get_env_multiple('form.grade_username');
7361: return ($symb,$courseid,$domain,$name,$publicuser);
7362: }
7363: }
7364: if (!$passedsymb) {
7365: $symb=&symbread();
7366: } else {
7367: $symb=$passedsymb;
7368: }
7369: $courseid=$env{'request.course.id'};
7370: $domain=$env{'user.domain'};
7371: $name=$env{'user.name'};
7372: if ($name eq 'public' && $domain eq 'public') {
7373: if (!defined($env{'form.username'})) {
7374: $env{'form.username'}.=time.rand(10000000);
7375: }
7376: $name.=$env{'form.username'};
7377: }
7378: return ($symb,$courseid,$domain,$name,$publicuser);
7379:
7380: }
7381:
1.36 albertel 7382: # ------------------------------------------------------------ Serves up a file
1.472 albertel 7383: # returns either the contents of the file or
7384: # -1 if the file doesn't exist
1.481 raeburn 7385: #
7386: # if the target is a file that was uploaded via DOCS,
7387: # a check will be made to see if a current copy exists on the local server,
7388: # if it does this will be served, otherwise a copy will be retrieved from
7389: # the home server for the course and stored in /home/httpd/html/userfiles on
7390: # the local server.
1.472 albertel 7391:
1.36 albertel 7392: sub getfile {
1.538 albertel 7393: my ($file) = @_;
1.609 banghart 7394: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.538 albertel 7395: &repcopy($file);
7396: return &readfile($file);
7397: }
7398:
7399: sub repcopy_userfile {
7400: my ($file)=@_;
1.609 banghart 7401: if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
1.610 albertel 7402: if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
1.538 albertel 7403: my ($cdom,$cnum,$filename) =
1.811 albertel 7404: ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
1.538 albertel 7405: my $uri="/uploaded/$cdom/$cnum/$filename";
7406: if (-e "$file") {
1.828 www 7407: # we already have a local copy, check it out
1.538 albertel 7408: my @fileinfo = stat($file);
1.828 www 7409: my $rtncode;
7410: my $info;
1.538 albertel 7411: my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
1.482 albertel 7412: if ($lwpresp ne 'ok') {
1.828 www 7413: # there is no such file anymore, even though we had a local copy
1.482 albertel 7414: if ($rtncode eq '404') {
1.538 albertel 7415: unlink($file);
1.482 albertel 7416: }
7417: return -1;
7418: }
7419: if ($info < $fileinfo[9]) {
1.828 www 7420: # nice, the file we have is up-to-date, just say okay
1.607 raeburn 7421: return 'ok';
1.828 www 7422: } else {
7423: # the file is outdated, get rid of it
7424: unlink($file);
1.482 albertel 7425: }
1.828 www 7426: }
7427: # one way or the other, at this point, we don't have the file
7428: # construct the correct path for the file
7429: my @parts = ($cdom,$cnum);
7430: if ($filename =~ m|^(.+)/[^/]+$|) {
7431: push @parts, split(/\//,$1);
7432: }
7433: my $path = $perlvar{'lonDocRoot'}.'/userfiles';
7434: foreach my $part (@parts) {
7435: $path .= '/'.$part;
7436: if (!-e $path) {
7437: mkdir($path,0770);
1.482 albertel 7438: }
7439: }
1.828 www 7440: # now the path exists for sure
7441: # get a user agent
7442: my $ua=new LWP::UserAgent;
7443: my $transferfile=$file.'.in.transfer';
7444: # FIXME: this should flock
7445: if (-e $transferfile) { return 'ok'; }
7446: my $request;
7447: $uri=~s/^\///;
1.838 albertel 7448: $request=new HTTP::Request('GET','http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri);
1.828 www 7449: my $response=$ua->request($request,$transferfile);
7450: # did it work?
7451: if ($response->is_error()) {
7452: unlink($transferfile);
7453: &logthis("Userfile repcopy failed for $uri");
7454: return -1;
7455: }
7456: # worked, rename the transfer file
7457: rename($transferfile,$file);
1.607 raeburn 7458: return 'ok';
1.481 raeburn 7459: }
7460:
1.517 albertel 7461: sub tokenwrapper {
7462: my $uri=shift;
1.552 albertel 7463: $uri=~s|^http\://([^/]+)||;
7464: $uri=~s|^/||;
1.620 albertel 7465: $env{'user.environment'}=~/\/([^\/]+)\.id/;
1.517 albertel 7466: my $token=$1;
1.552 albertel 7467: my (undef,$udom,$uname,$file)=split('/',$uri,4);
7468: if ($udom && $uname && $file) {
7469: $file=~s|(\?\.*)*$||;
1.620 albertel 7470: &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
1.838 albertel 7471: return 'http://'.&hostname(&homeserver($uname,$udom)).'/'.$uri.
1.517 albertel 7472: (($uri=~/\?/)?'&':'?').'token='.$token.
7473: '&tokenissued='.$perlvar{'lonHostID'};
7474: } else {
7475: return '/adm/notfound.html';
7476: }
7477: }
7478:
1.828 www 7479: # call with reqtype HEAD: get last modification time
7480: # call with reqtype GET: get the file contents
7481: # Do not call this with reqtype GET for large files! It loads everything into memory
7482: #
1.481 raeburn 7483: sub getuploaded {
7484: my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
7485: $uri=~s/^\///;
1.838 albertel 7486: $uri = 'http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri;
1.481 raeburn 7487: my $ua=new LWP::UserAgent;
7488: my $request=new HTTP::Request($reqtype,$uri);
7489: my $response=$ua->request($request);
7490: $$rtncode = $response->code;
1.482 albertel 7491: if (! $response->is_success()) {
7492: return 'failed';
7493: }
7494: if ($reqtype eq 'HEAD') {
1.486 www 7495: $$info = &HTTP::Date::str2time( $response->header('Last-modified') );
1.482 albertel 7496: } elsif ($reqtype eq 'GET') {
7497: $$info = $response->content;
1.472 albertel 7498: }
1.482 albertel 7499: return 'ok';
1.36 albertel 7500: }
7501:
1.481 raeburn 7502: sub readfile {
7503: my $file = shift;
7504: if ( (! -e $file ) || ($file eq '') ) { return -1; };
7505: my $fh;
7506: open($fh,"<$file");
7507: my $a='';
1.800 albertel 7508: while (my $line = <$fh>) { $a .= $line; }
1.481 raeburn 7509: return $a;
7510: }
7511:
1.36 albertel 7512: sub filelocation {
1.590 banghart 7513: my ($dir,$file) = @_;
7514: my $location;
7515: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.700 albertel 7516:
7517: if ($file =~ m-^/adm/-) {
7518: $file=~s-^/adm/wrapper/-/-;
7519: $file=~s-^/adm/coursedocs/showdoc/-/-;
7520: }
1.882 albertel 7521:
1.590 banghart 7522: if ($file=~m:^/~:) { # is a contruction space reference
7523: $location = $file;
7524: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.807 albertel 7525: } elsif ($file=~m{^/home/$match_username/public_html/}) {
1.649 albertel 7526: # is a correct contruction space reference
7527: $location = $file;
1.609 banghart 7528: } elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
1.590 banghart 7529: my ($udom,$uname,$filename)=
1.811 albertel 7530: ($file=~m -^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$-);
1.590 banghart 7531: my $home=&homeserver($uname,$udom);
7532: my $is_me=0;
7533: my @ids=¤t_machine_ids();
7534: foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
7535: if ($is_me) {
1.740 www 7536: $location=&propath($udom,$uname).
1.590 banghart 7537: '/userfiles/'.$filename;
7538: } else {
7539: $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
7540: $udom.'/'.$uname.'/'.$filename;
7541: }
1.882 albertel 7542: } elsif ($file =~ m-^/adm/-) {
7543: $location = $perlvar{'lonDocRoot'}.'/'.$file;
1.590 banghart 7544: } else {
7545: $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
7546: $file=~s:^/res/:/:;
7547: if ( !( $file =~ m:^/:) ) {
7548: $location = $dir. '/'.$file;
7549: } else {
7550: $location = '/home/httpd/html/res'.$file;
7551: }
1.59 albertel 7552: }
1.590 banghart 7553: $location=~s://+:/:g; # remove duplicate /
7554: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
7555: while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
7556: return $location;
1.46 www 7557: }
1.36 albertel 7558:
1.46 www 7559: sub hreflocation {
7560: my ($dir,$file)=@_;
1.460 albertel 7561: unless (($file=~m-^http://-i) || ($file=~m-^/-)) {
1.666 albertel 7562: $file=filelocation($dir,$file);
1.700 albertel 7563: } elsif ($file=~m-^/adm/-) {
7564: $file=~s-^/adm/wrapper/-/-;
7565: $file=~s-^/adm/coursedocs/showdoc/-/-;
1.666 albertel 7566: }
7567: if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
7568: $file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
1.807 albertel 7569: } elsif ($file=~m-/home/($match_username)/public_html/-) {
7570: $file=~s-^/home/($match_username)/public_html/-/~$1/-;
1.666 albertel 7571: } elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
1.811 albertel 7572: $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
1.666 albertel 7573: -/uploaded/$1/$2/-x;
1.46 www 7574: }
1.462 albertel 7575: return $file;
1.465 albertel 7576: }
7577:
7578: sub current_machine_domains {
1.853 albertel 7579: return &machine_domains(&hostname($perlvar{'lonHostID'}));
7580: }
7581:
7582: sub machine_domains {
7583: my ($hostname) = @_;
1.465 albertel 7584: my @domains;
1.838 albertel 7585: my %hostname = &all_hostnames();
1.465 albertel 7586: while( my($id, $name) = each(%hostname)) {
1.467 matthew 7587: # &logthis("-$id-$name-$hostname-");
1.465 albertel 7588: if ($hostname eq $name) {
1.844 albertel 7589: push(@domains,&host_domain($id));
1.465 albertel 7590: }
7591: }
7592: return @domains;
7593: }
7594:
7595: sub current_machine_ids {
1.853 albertel 7596: return &machine_ids(&hostname($perlvar{'lonHostID'}));
7597: }
7598:
7599: sub machine_ids {
7600: my ($hostname) = @_;
7601: $hostname ||= &hostname($perlvar{'lonHostID'});
1.465 albertel 7602: my @ids;
1.888 albertel 7603: my %name_to_host = &all_names();
1.889 albertel 7604: if (ref($name_to_host{$hostname}) eq 'ARRAY') {
7605: return @{ $name_to_host{$hostname} };
7606: }
7607: return;
1.31 www 7608: }
7609:
1.824 raeburn 7610: sub additional_machine_domains {
7611: my @domains;
7612: open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
7613: while( my $line = <$fh>) {
7614: $line =~ s/\s//g;
7615: push(@domains,$line);
7616: }
7617: return @domains;
7618: }
7619:
7620: sub default_login_domain {
7621: my $domain = $perlvar{'lonDefDomain'};
7622: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
7623: foreach my $posdom (¤t_machine_domains(),
7624: &additional_machine_domains()) {
7625: if (lc($posdom) eq lc($testdomain)) {
7626: $domain=$posdom;
7627: last;
7628: }
7629: }
7630: return $domain;
7631: }
7632:
1.31 www 7633: # ------------------------------------------------------------- Declutters URLs
7634:
7635: sub declutter {
7636: my $thisfn=shift;
1.569 albertel 7637: if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
1.479 albertel 7638: $thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
1.31 www 7639: $thisfn=~s/^\///;
1.697 albertel 7640: $thisfn=~s|^adm/wrapper/||;
7641: $thisfn=~s|^adm/coursedocs/showdoc/||;
1.31 www 7642: $thisfn=~s/^res\///;
1.235 www 7643: $thisfn=~s/\?.+$//;
1.268 www 7644: return $thisfn;
7645: }
7646:
7647: # ------------------------------------------------------------- Clutter up URLs
7648:
7649: sub clutter {
7650: my $thisfn='/'.&declutter(shift);
1.887 albertel 7651: if ($thisfn !~ m{^/(uploaded|editupload|adm|userfiles|ext|raw|priv|public)/}
1.884 albertel 7652: || $thisfn =~ m{^/adm/(includes|pages)} ) {
1.270 www 7653: $thisfn='/res'.$thisfn;
7654: }
1.694 albertel 7655: if ($thisfn !~m|/adm|) {
1.695 albertel 7656: if ($thisfn =~ m|/ext/|) {
1.694 albertel 7657: $thisfn='/adm/wrapper'.$thisfn;
1.695 albertel 7658: } else {
7659: my ($ext) = ($thisfn =~ /\.(\w+)$/);
7660: my $embstyle=&Apache::loncommon::fileembstyle($ext);
1.698 albertel 7661: if ($embstyle eq 'ssi'
7662: || ($embstyle eq 'hdn')
7663: || ($embstyle eq 'rat')
7664: || ($embstyle eq 'prv')
7665: || ($embstyle eq 'ign')) {
7666: #do nothing with these
7667: } elsif (($embstyle eq 'img')
1.695 albertel 7668: || ($embstyle eq 'emb')
7669: || ($embstyle eq 'wrp')) {
7670: $thisfn='/adm/wrapper'.$thisfn;
1.698 albertel 7671: } elsif ($embstyle eq 'unk'
7672: && $thisfn!~/\.(sequence|page)$/) {
1.695 albertel 7673: $thisfn='/adm/coursedocs/showdoc'.$thisfn;
1.698 albertel 7674: } else {
1.718 www 7675: # &logthis("Got a blank emb style");
1.695 albertel 7676: }
1.694 albertel 7677: }
7678: }
1.31 www 7679: return $thisfn;
1.12 www 7680: }
7681:
1.787 albertel 7682: sub clutter_with_no_wrapper {
7683: my $uri = &clutter(shift);
7684: if ($uri =~ m-^/adm/-) {
7685: $uri =~ s-^/adm/wrapper/-/-;
7686: $uri =~ s-^/adm/coursedocs/showdoc/-/-;
7687: }
7688: return $uri;
7689: }
7690:
1.557 albertel 7691: sub freeze_escape {
7692: my ($value)=@_;
7693: if (ref($value)) {
7694: $value=&nfreeze($value);
7695: return '__FROZEN__'.&escape($value);
7696: }
7697: return &escape($value);
7698: }
7699:
1.11 www 7700:
1.557 albertel 7701: sub thaw_unescape {
7702: my ($value)=@_;
7703: if ($value =~ /^__FROZEN__/) {
7704: substr($value,0,10,undef);
7705: $value=&unescape($value);
7706: return &thaw($value);
7707: }
7708: return &unescape($value);
7709: }
7710:
1.436 albertel 7711: sub correct_line_ends {
7712: my ($result)=@_;
7713: $$result =~s/\r\n/\n/mg;
7714: $$result =~s/\r/\n/mg;
1.415 albertel 7715: }
1.1 albertel 7716: # ================================================================ Main Program
7717:
1.184 www 7718: sub goodbye {
1.204 albertel 7719: &logthis("Starting Shut down");
1.443 albertel 7720: #not converted to using infrastruture and probably shouldn't be
1.870 albertel 7721: &logthis(sprintf("%-20s is %s",'%badServerCache',length(&nfreeze(\%badServerCache))));
1.443 albertel 7722: #converted
1.599 albertel 7723: # &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
1.870 albertel 7724: &logthis(sprintf("%-20s is %s",'%homecache',length(&nfreeze(\%homecache))));
7725: # &logthis(sprintf("%-20s is %s",'%titlecache',length(&nfreeze(\%titlecache))));
7726: # &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&nfreeze(\%courseresdatacache))));
1.425 albertel 7727: #1.1 only
1.870 albertel 7728: # &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&nfreeze(\%userresdatacache))));
7729: # &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&nfreeze(\%getsectioncache))));
7730: # &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&nfreeze(\%courseresversioncache))));
7731: # &logthis(sprintf("%-20s is %s",'%resversioncache',length(&nfreeze(\%resversioncache))));
7732: &logthis(sprintf("%-20s is %s",'%remembered',length(&nfreeze(\%remembered))));
1.599 albertel 7733: &logthis(sprintf("%-20s is %s",'kicks',$kicks));
7734: &logthis(sprintf("%-20s is %s",'hits',$hits));
1.184 www 7735: &flushcourselogs();
7736: &logthis("Shutting down");
7737: }
7738:
1.852 albertel 7739: sub get_dns {
1.869 albertel 7740: my ($url,$func,$ignore_cache) = @_;
7741: if (!$ignore_cache) {
7742: my ($content,$cached)=
7743: &Apache::lonnet::is_cached_new('dns',$url);
7744: if ($cached) {
7745: &$func($content);
7746: return;
7747: }
7748: }
7749:
7750: my %alldns;
1.852 albertel 7751: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
7752: foreach my $dns (<$config>) {
7753: next if ($dns !~ /^\^(\S*)/x);
1.869 albertel 7754: $alldns{$1} = 1;
7755: }
7756: while (%alldns) {
7757: my ($dns) = keys(%alldns);
7758: delete($alldns{$dns});
1.852 albertel 7759: my $ua=new LWP::UserAgent;
7760: my $request=new HTTP::Request('GET',"http://$dns$url");
7761: my $response=$ua->request($request);
7762: next if ($response->is_error());
7763: my @content = split("\n",$response->content);
1.869 albertel 7764: &Apache::lonnet::do_cache_new('dns',$url,\@content,30*24*60*60);
1.852 albertel 7765: &$func(\@content);
1.869 albertel 7766: return;
1.852 albertel 7767: }
7768: close($config);
1.871 albertel 7769: my $which = (split('/',$url))[3];
7770: &logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
7771: open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
1.869 albertel 7772: my @content = <$config>;
7773: &$func(\@content);
7774: return;
1.852 albertel 7775: }
1.327 albertel 7776: # ------------------------------------------------------------ Read domain file
7777: {
1.852 albertel 7778: my $loaded;
1.846 albertel 7779: my %domain;
7780:
1.852 albertel 7781: sub parse_domain_tab {
7782: my ($lines) = @_;
7783: foreach my $line (@$lines) {
7784: next if ($line =~ /^(\#|\s*$ )/x);
1.403 www 7785:
1.846 albertel 7786: chomp($line);
1.852 albertel 7787: my ($name,@elements) = split(/:/,$line,9);
1.846 albertel 7788: my %this_domain;
7789: foreach my $field ('description', 'auth_def', 'auth_arg_def',
7790: 'lang_def', 'city', 'longi', 'lati',
7791: 'primary') {
7792: $this_domain{$field} = shift(@elements);
7793: }
7794: $domain{$name} = \%this_domain;
1.852 albertel 7795: }
7796: }
1.864 albertel 7797:
7798: sub reset_domain_info {
7799: undef($loaded);
7800: undef(%domain);
7801: }
7802:
1.852 albertel 7803: sub load_domain_tab {
1.869 albertel 7804: my ($ignore_cache) = @_;
7805: &get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
1.852 albertel 7806: my $fh;
7807: if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
7808: my @lines = <$fh>;
7809: &parse_domain_tab(\@lines);
1.448 albertel 7810: }
1.852 albertel 7811: close($fh);
7812: $loaded = 1;
1.327 albertel 7813: }
1.846 albertel 7814:
7815: sub domain {
1.852 albertel 7816: &load_domain_tab() if (!$loaded);
7817:
1.846 albertel 7818: my ($name,$what) = @_;
7819: return if ( !exists($domain{$name}) );
7820:
7821: if (!$what) {
7822: return $domain{$name}{'description'};
7823: }
7824: return $domain{$name}{$what};
7825: }
1.327 albertel 7826: }
7827:
7828:
1.1 albertel 7829: # ------------------------------------------------------------- Read hosts file
7830: {
1.838 albertel 7831: my %hostname;
1.844 albertel 7832: my %hostdom;
1.845 albertel 7833: my %libserv;
1.852 albertel 7834: my $loaded;
1.888 albertel 7835: my %name_to_host;
1.852 albertel 7836:
7837: sub parse_hosts_tab {
7838: my ($file) = @_;
7839: foreach my $configline (@$file) {
7840: next if ($configline =~ /^(\#|\s*$ )/x);
7841: next if ($configline =~ /^\^/);
7842: chomp($configline);
7843: my ($id,$domain,$role,$name)=split(/:/,$configline);
7844: $name=~s/\s//g;
7845: if ($id && $domain && $role && $name) {
7846: $hostname{$id}=$name;
1.888 albertel 7847: push(@{$name_to_host{$name}}, $id);
1.852 albertel 7848: $hostdom{$id}=$domain;
7849: if ($role eq 'library') { $libserv{$id}=$name; }
7850: }
7851: }
7852: }
1.864 albertel 7853:
7854: sub reset_hosts_info {
7855: &reset_domain_info();
7856: &reset_hosts_ip_info();
1.890.2.1 albertel 7857: undef(%name_to_host);
1.864 albertel 7858: undef(%hostname);
7859: undef(%hostdom);
7860: undef(%libserv);
7861: undef($loaded);
7862: }
1.1 albertel 7863:
1.852 albertel 7864: sub load_hosts_tab {
1.869 albertel 7865: my ($ignore_cache) = @_;
7866: &get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
1.852 albertel 7867: open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
7868: my @config = <$config>;
7869: &parse_hosts_tab(\@config);
7870: close($config);
7871: $loaded=1;
1.1 albertel 7872: }
1.852 albertel 7873:
1.838 albertel 7874: sub hostname {
1.852 albertel 7875: &load_hosts_tab() if (!$loaded);
7876:
1.838 albertel 7877: my ($lonid) = @_;
7878: return $hostname{$lonid};
7879: }
1.845 albertel 7880:
1.838 albertel 7881: sub all_hostnames {
1.852 albertel 7882: &load_hosts_tab() if (!$loaded);
7883:
1.838 albertel 7884: return %hostname;
7885: }
1.845 albertel 7886:
1.888 albertel 7887: sub all_names {
7888: &load_hosts_tab() if (!$loaded);
7889:
7890: return %name_to_host;
7891: }
7892:
1.845 albertel 7893: sub is_library {
1.852 albertel 7894: &load_hosts_tab() if (!$loaded);
7895:
1.845 albertel 7896: return exists($libserv{$_[0]});
7897: }
7898:
7899: sub all_library {
1.852 albertel 7900: &load_hosts_tab() if (!$loaded);
7901:
1.845 albertel 7902: return %libserv;
7903: }
7904:
1.841 albertel 7905: sub get_servers {
1.852 albertel 7906: &load_hosts_tab() if (!$loaded);
7907:
1.841 albertel 7908: my ($domain,$type) = @_;
7909: my %possible_hosts = ($type eq 'library') ? %libserv
7910: : %hostname;
7911: my %result;
1.842 albertel 7912: if (ref($domain) eq 'ARRAY') {
7913: while ( my ($host,$hostname) = each(%possible_hosts)) {
1.843 albertel 7914: if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
1.842 albertel 7915: $result{$host} = $hostname;
7916: }
7917: }
7918: } else {
7919: while ( my ($host,$hostname) = each(%possible_hosts)) {
7920: if ($hostdom{$host} eq $domain) {
7921: $result{$host} = $hostname;
7922: }
1.841 albertel 7923: }
7924: }
7925: return %result;
7926: }
1.845 albertel 7927:
1.844 albertel 7928: sub host_domain {
1.852 albertel 7929: &load_hosts_tab() if (!$loaded);
7930:
1.844 albertel 7931: my ($lonid) = @_;
7932: return $hostdom{$lonid};
7933: }
7934:
1.841 albertel 7935: sub all_domains {
1.852 albertel 7936: &load_hosts_tab() if (!$loaded);
7937:
1.841 albertel 7938: my %seen;
7939: my @uniq = grep(!$seen{$_}++, values(%hostdom));
7940: return @uniq;
7941: }
1.1 albertel 7942: }
7943:
1.847 albertel 7944: {
7945: my %iphost;
1.856 albertel 7946: my %name_to_ip;
7947: my %lonid_to_ip;
1.869 albertel 7948:
1.847 albertel 7949: sub get_hosts_from_ip {
7950: my ($ip) = @_;
7951: my %iphosts = &get_iphost();
7952: if (ref($iphosts{$ip})) {
7953: return @{$iphosts{$ip}};
7954: }
7955: return;
1.839 albertel 7956: }
1.864 albertel 7957:
7958: sub reset_hosts_ip_info {
7959: undef(%iphost);
7960: undef(%name_to_ip);
7961: undef(%lonid_to_ip);
7962: }
1.856 albertel 7963:
7964: sub get_host_ip {
7965: my ($lonid) = @_;
7966: if (exists($lonid_to_ip{$lonid})) {
7967: return $lonid_to_ip{$lonid};
7968: }
7969: my $name=&hostname($lonid);
7970: my $ip = gethostbyname($name);
7971: return if (!$ip || length($ip) ne 4);
7972: $ip=inet_ntoa($ip);
7973: $name_to_ip{$name} = $ip;
7974: $lonid_to_ip{$lonid} = $ip;
7975: return $ip;
7976: }
1.847 albertel 7977:
7978: sub get_iphost {
1.869 albertel 7979: my ($ignore_cache) = @_;
1.890.2.2! albertel 7980:
1.869 albertel 7981: if (!$ignore_cache) {
7982: if (%iphost) {
7983: return %iphost;
7984: }
7985: my ($ip_info,$cached)=
7986: &Apache::lonnet::is_cached_new('iphost','iphost');
7987: if ($cached) {
7988: %iphost = %{$ip_info->[0]};
7989: %name_to_ip = %{$ip_info->[1]};
7990: %lonid_to_ip = %{$ip_info->[2]};
7991: return %iphost;
7992: }
7993: }
1.890.2.2! albertel 7994:
! 7995: # get yesterday's info for fallback
! 7996: my %old_name_to_ip;
! 7997: my ($ip_info,$cached)=
! 7998: &Apache::lonnet::is_cached_new('iphost','iphost');
! 7999: if ($cached) {
! 8000: %old_name_to_ip = %{$ip_info->[1]};
! 8001: }
! 8002:
1.888 albertel 8003: my %name_to_host = &all_names();
8004: foreach my $name (keys(%name_to_host)) {
1.847 albertel 8005: my $ip;
8006: if (!exists($name_to_ip{$name})) {
8007: $ip = gethostbyname($name);
8008: if (!$ip || length($ip) ne 4) {
1.890.2.2! albertel 8009: if (defined($old_name_to_ip{$name})) {
! 8010: $ip = $old_name_to_ip{$name};
! 8011: &logthis("Can't find $name defaulting to old $ip");
! 8012: } else {
! 8013: &logthis("Name $name no IP found");
! 8014: next;
! 8015: }
! 8016: } else {
! 8017: $ip=inet_ntoa($ip);
1.847 albertel 8018: }
8019: $name_to_ip{$name} = $ip;
8020: } else {
8021: $ip = $name_to_ip{$name};
1.653 albertel 8022: }
1.888 albertel 8023: foreach my $id (@{ $name_to_host{$name} }) {
8024: $lonid_to_ip{$id} = $ip;
8025: }
8026: push(@{$iphost{$ip}},@{$name_to_host{$name}});
1.598 albertel 8027: }
1.869 albertel 8028: &Apache::lonnet::do_cache_new('iphost','iphost',
8029: [\%iphost,\%name_to_ip,\%lonid_to_ip],
1.890.2.2! albertel 8030: 48*60*60);
1.869 albertel 8031:
1.847 albertel 8032: return %iphost;
1.598 albertel 8033: }
8034: }
8035:
1.862 albertel 8036: BEGIN {
8037:
8038: # ----------------------------------- Read loncapa.conf and loncapa_apache.conf
8039: unless ($readit) {
8040: {
8041: my $configvars = LONCAPA::Configuration::read_conf('loncapa.conf');
8042: %perlvar = (%perlvar,%{$configvars});
8043: }
8044:
8045:
1.1 albertel 8046: # ------------------------------------------------------ Read spare server file
8047: {
1.448 albertel 8048: open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
1.1 albertel 8049:
8050: while (my $configline=<$config>) {
8051: chomp($configline);
1.284 matthew 8052: if ($configline) {
1.784 albertel 8053: my ($host,$type) = split(':',$configline,2);
1.785 albertel 8054: if (!defined($type) || $type eq '') { $type = 'default' };
1.784 albertel 8055: push(@{ $spareid{$type} }, $host);
1.1 albertel 8056: }
8057: }
1.448 albertel 8058: close($config);
1.1 albertel 8059: }
1.11 www 8060: # ------------------------------------------------------------ Read permissions
8061: {
1.448 albertel 8062: open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");
1.11 www 8063:
8064: while (my $configline=<$config>) {
1.448 albertel 8065: chomp($configline);
8066: if ($configline) {
8067: my ($role,$perm)=split(/ /,$configline);
8068: if ($perm ne '') { $pr{$role}=$perm; }
8069: }
1.11 www 8070: }
1.448 albertel 8071: close($config);
1.11 www 8072: }
8073:
8074: # -------------------------------------------- Read plain texts for permissions
8075: {
1.448 albertel 8076: open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");
1.11 www 8077:
8078: while (my $configline=<$config>) {
1.448 albertel 8079: chomp($configline);
8080: if ($configline) {
1.742 raeburn 8081: my ($short,@plain)=split(/:/,$configline);
8082: %{$prp{$short}} = ();
8083: if (@plain > 0) {
8084: $prp{$short}{'std'} = $plain[0];
8085: for (my $i=1; $i<@plain; $i++) {
8086: $prp{$short}{'alt'.$i} = $plain[$i];
8087: }
8088: }
1.448 albertel 8089: }
1.135 www 8090: }
1.448 albertel 8091: close($config);
1.135 www 8092: }
8093:
8094: # ---------------------------------------------------------- Read package table
8095: {
1.448 albertel 8096: open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");
1.135 www 8097:
8098: while (my $configline=<$config>) {
1.483 albertel 8099: if ($configline !~ /\S/ || $configline=~/^#/) { next; }
1.448 albertel 8100: chomp($configline);
8101: my ($short,$plain)=split(/:/,$configline);
8102: my ($pack,$name)=split(/\&/,$short);
8103: if ($plain ne '') {
8104: $packagetab{$pack.'&'.$name.'&name'}=$name;
8105: $packagetab{$short}=$plain;
8106: }
1.11 www 8107: }
1.448 albertel 8108: close($config);
1.329 matthew 8109: }
8110:
8111: # ------------- set up temporary directory
8112: {
8113: $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
8114:
1.11 www 8115: }
8116:
1.794 albertel 8117: $memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
8118: 'compress_threshold'=> 20_000,
8119: });
1.185 www 8120:
1.281 www 8121: $processmarker='_'.time.'_'.$perlvar{'lonHostID'};
1.186 www 8122: $dumpcount=0;
1.22 www 8123:
1.163 harris41 8124: &logtouch();
1.672 albertel 8125: &logthis('<font color="yellow">INFO: Read configuration</font>');
1.195 www 8126: $readit=1;
1.564 albertel 8127: {
8128: use integer;
8129: my $test=(2**32)+1;
1.568 albertel 8130: if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
1.564 albertel 8131: &logthis(" Detected 64bit platform ($_64bit)");
8132: }
1.195 www 8133: }
1.1 albertel 8134: }
1.179 www 8135:
1.1 albertel 8136: 1;
1.191 harris41 8137: __END__
8138:
1.243 albertel 8139: =pod
8140:
1.191 harris41 8141: =head1 NAME
8142:
1.243 albertel 8143: Apache::lonnet - Subroutines to ask questions about things in the network.
1.191 harris41 8144:
8145: =head1 SYNOPSIS
8146:
1.243 albertel 8147: Invoked by other LON-CAPA modules, when they need to talk to or about objects in the network.
1.191 harris41 8148:
8149: &Apache::lonnet::SUBROUTINENAME(ARGUMENTS);
8150:
1.243 albertel 8151: Common parameters:
8152:
8153: =over 4
8154:
8155: =item *
8156:
8157: $uname : an internal username (if $cname expecting a course Id specifically)
8158:
8159: =item *
8160:
8161: $udom : a domain (if $cdom expecting a course's domain specifically)
8162:
8163: =item *
8164:
8165: $symb : a resource instance identifier
8166:
8167: =item *
8168:
8169: $namespace : the name of a .db file that contains the data needed or
8170: being set.
8171:
8172: =back
8173:
1.394 bowersj2 8174: =head1 OVERVIEW
1.191 harris41 8175:
1.394 bowersj2 8176: lonnet provides subroutines which interact with the
8177: lonc/lond (TCP) network layer of LON-CAPA. They can be used to ask
8178: about classes, users, and resources.
1.243 albertel 8179:
8180: For many of these objects you can also use this to store data about
8181: them or modify them in various ways.
1.191 harris41 8182:
1.394 bowersj2 8183: =head2 Symbs
1.191 harris41 8184:
1.394 bowersj2 8185: To identify a specific instance of a resource, LON-CAPA uses symbols
8186: or "symbs"X<symb>. These identifiers are built from the URL of the
8187: map, the resource number of the resource in the map, and the URL of
8188: the resource itself. The latter is somewhat redundant, but might help
8189: if maps change.
8190:
8191: An example is
8192:
8193: msu/korte/parts/part1.sequence___19___msu/korte/tests/part12.problem
8194:
8195: The respective map entry is
8196:
8197: <resource id="19" src="/res/msu/korte/tests/part12.problem"
8198: title="Problem 2">
8199: </resource>
8200:
8201: Symbs are used by the random number generator, as well as to store and
8202: restore data specific to a certain instance of for example a problem.
8203:
8204: =head2 Storing And Retrieving Data
8205:
8206: X<store()>X<cstore()>X<restore()>Three of the most important functions
8207: in C<lonnet.pm> are C<&Apache::lonnet::cstore()>,
8208: C<&Apache::lonnet:restore()>, and C<&Apache::lonnet::store()>, which
8209: is is the non-critical message twin of cstore. These functions are for
8210: handlers to store a perl hash to a user's permanent data space in an
8211: easy manner, and to retrieve it again on another call. It is expected
8212: that a handler would use this once at the beginning to retrieve data,
8213: and then again once at the end to send only the new data back.
8214:
8215: The data is stored in the user's data directory on the user's
8216: homeserver under the ID of the course.
8217:
8218: The hash that is returned by restore will have all of the previous
8219: value for all of the elements of the hash.
8220:
8221: Example:
8222:
8223: #creating a hash
8224: my %hash;
8225: $hash{'foo'}='bar';
8226:
8227: #storing it
8228: &Apache::lonnet::cstore(\%hash);
8229:
8230: #changing a value
8231: $hash{'foo'}='notbar';
8232:
8233: #adding a new value
8234: $hash{'bar'}='foo';
8235: &Apache::lonnet::cstore(\%hash);
8236:
8237: #retrieving the hash
8238: my %history=&Apache::lonnet::restore();
8239:
8240: #print the hash
8241: foreach my $key (sort(keys(%history))) {
8242: print("\%history{$key} = $history{$key}");
8243: }
8244:
8245: Will print out:
1.191 harris41 8246:
1.394 bowersj2 8247: %history{1:foo} = bar
8248: %history{1:keys} = foo:timestamp
8249: %history{1:timestamp} = 990455579
8250: %history{2:bar} = foo
8251: %history{2:foo} = notbar
8252: %history{2:keys} = foo:bar:timestamp
8253: %history{2:timestamp} = 990455580
8254: %history{bar} = foo
8255: %history{foo} = notbar
8256: %history{timestamp} = 990455580
8257: %history{version} = 2
8258:
8259: Note that the special hash entries C<keys>, C<version> and
8260: C<timestamp> were added to the hash. C<version> will be equal to the
8261: total number of versions of the data that have been stored. The
8262: C<timestamp> attribute will be the UNIX time the hash was
8263: stored. C<keys> is available in every historical section to list which
8264: keys were added or changed at a specific historical revision of a
8265: hash.
8266:
8267: B<Warning>: do not store the hash that restore returns directly. This
8268: will cause a mess since it will restore the historical keys as if the
8269: were new keys. I.E. 1:foo will become 1:1:foo etc.
1.191 harris41 8270:
1.394 bowersj2 8271: Calling convention:
1.191 harris41 8272:
1.394 bowersj2 8273: my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname,$home);
8274: &Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);
1.191 harris41 8275:
1.394 bowersj2 8276: For more detailed information, see lonnet specific documentation.
1.191 harris41 8277:
1.394 bowersj2 8278: =head1 RETURN MESSAGES
1.191 harris41 8279:
1.394 bowersj2 8280: =over 4
1.191 harris41 8281:
1.394 bowersj2 8282: =item * B<con_lost>: unable to contact remote host
1.191 harris41 8283:
1.394 bowersj2 8284: =item * B<con_delayed>: unable to contact remote host, message will be delivered
8285: when the connection is brought back up
1.191 harris41 8286:
1.394 bowersj2 8287: =item * B<con_failed>: unable to contact remote host and unable to save message
8288: for later delivery
1.191 harris41 8289:
1.394 bowersj2 8290: =item * B<error:>: an error a occured, a description of the error follows the :
1.191 harris41 8291:
1.394 bowersj2 8292: =item * B<no_such_host>: unable to fund a host associated with the user/domain
1.243 albertel 8293: that was requested
1.191 harris41 8294:
1.243 albertel 8295: =back
1.191 harris41 8296:
1.243 albertel 8297: =head1 PUBLIC SUBROUTINES
1.191 harris41 8298:
1.243 albertel 8299: =head2 Session Environment Functions
1.191 harris41 8300:
1.243 albertel 8301: =over 4
1.191 harris41 8302:
1.394 bowersj2 8303: =item *
8304: X<appenv()>
8305: B<appenv(%hash)>: the value of %hash is written to
8306: the user envirnoment file, and will be restored for each access this
1.620 albertel 8307: user makes during this session, also modifies the %env for the current
1.394 bowersj2 8308: process
1.191 harris41 8309:
8310: =item *
1.394 bowersj2 8311: X<delenv()>
8312: B<delenv($regexp)>: removes all items from the session
8313: environment file that matches the regular expression in $regexp. The
1.620 albertel 8314: values are also delted from the current processes %env.
1.191 harris41 8315:
1.795 albertel 8316: =item * get_env_multiple($name)
8317:
8318: gets $name from the %env hash, it seemlessly handles the cases where multiple
8319: values may be defined and end up as an array ref.
8320:
8321: returns an array of values
8322:
1.243 albertel 8323: =back
8324:
8325: =head2 User Information
1.191 harris41 8326:
1.243 albertel 8327: =over 4
1.191 harris41 8328:
8329: =item *
1.394 bowersj2 8330: X<queryauthenticate()>
8331: B<queryauthenticate($uname,$udom)>: try to determine user's current
1.191 harris41 8332: authentication scheme
8333:
8334: =item *
1.394 bowersj2 8335: X<authenticate()>
8336: B<authenticate($uname,$upass,$udom)>: try to
8337: authenticate user from domain's lib servers (first use the current
8338: one). C<$upass> should be the users password.
1.191 harris41 8339:
8340: =item *
1.394 bowersj2 8341: X<homeserver()>
8342: B<homeserver($uname,$udom)>: find the server which has
8343: the user's directory and files (there must be only one), this caches
8344: the answer, and also caches if there is a borken connection.
1.191 harris41 8345:
8346: =item *
1.394 bowersj2 8347: X<idget()>
8348: B<idget($udom,@ids)>: find the usernames behind a list of IDs
8349: (IDs are a unique resource in a domain, there must be only 1 ID per
8350: username, and only 1 username per ID in a specific domain) (returns
8351: hash: id=>name,id=>name)
1.191 harris41 8352:
8353: =item *
1.394 bowersj2 8354: X<idrget()>
8355: B<idrget($udom,@unames)>: find the IDs behind a list of
8356: usernames (returns hash: name=>id,name=>id)
1.191 harris41 8357:
8358: =item *
1.394 bowersj2 8359: X<idput()>
8360: B<idput($udom,%ids)>: store away a list of names and associated IDs
1.191 harris41 8361:
8362: =item *
1.394 bowersj2 8363: X<rolesinit()>
8364: B<rolesinit($udom,$username,$authhost)>: get user privileges
1.243 albertel 8365:
8366: =item *
1.551 albertel 8367: X<getsection()>
8368: B<getsection($udom,$uname,$cname)>: finds the section of student in the
1.243 albertel 8369: course $cname, return section name/number or '' for "not in course"
8370: and '-1' for "no section"
8371:
8372: =item *
1.394 bowersj2 8373: X<userenvironment()>
8374: B<userenvironment($udom,$uname,@what)>: gets the values of the keys
1.243 albertel 8375: passed in @what from the requested user's environment, returns a hash
8376:
1.858 raeburn 8377: =item *
8378: X<userlog_query()>
1.859 albertel 8379: B<userlog_query($uname,$udom,%filters)>: retrieves data from a user's
8380: activity.log file. %filters defines filters applied when parsing the
8381: log file. These can be start or end timestamps, or the type of action
8382: - log to look for Login or Logout events, check for Checkin or
8383: Checkout, role for role selection. The response is in the form
8384: timestamp1:hostid1:event1×tamp2:hostid2:event2 where events are
8385: escaped strings of the action recorded in the activity.log file.
1.858 raeburn 8386:
1.243 albertel 8387: =back
8388:
8389: =head2 User Roles
8390:
8391: =over 4
8392:
8393: =item *
8394:
1.810 raeburn 8395: allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
1.243 albertel 8396: F: full access
8397: U,I,K: authentication modes (cxx only)
8398: '': forbidden
8399: 1: user needs to choose course
8400: 2: browse allowed
1.766 albertel 8401: A: passphrase authentication needed
1.243 albertel 8402:
8403: =item *
8404:
8405: definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
8406: role rolename set privileges in format of lonTabs/roles.tab for system, domain,
8407: and course level
8408:
8409: =item *
8410:
8411: plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
8412: explanation of a user role term
8413:
1.832 raeburn 8414: =item *
8415:
1.858 raeburn 8416: get_my_roles($uname,$udom,$context,$types,$roles,$roledoms) :
8417: All arguments are optional. Returns a hash of a roles, either for
8418: co-author/assistant author roles for a user's Construction Space
8419: (default), or if $context is 'user', roles for the user himself,
8420: In the hash, keys are set to colon-sparated $uname,$udom,and $role,
8421: and value is set to colon-separated start and end times for the role.
8422: If no username and domain are specified, will default to current
8423: user/domain. Types, roles, and roledoms are references to arrays,
8424: of role statuses (active, future or previous), roles
8425: (e.g., cc,in, st etc.) and domains of the roles which can be used
8426: to restrict the list of roles reported. If no array ref is
8427: provided for types, will default to return only active roles.
1.834 albertel 8428:
1.243 albertel 8429: =back
8430:
8431: =head2 User Modification
8432:
8433: =over 4
8434:
8435: =item *
8436:
8437: assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a
8438: user for the level given by URL. Optional start and end dates (leave empty
8439: string or zero for "no date")
1.191 harris41 8440:
8441: =item *
8442:
1.243 albertel 8443: changepass($uname,$udom,$currentpass,$newpass,$server) : attempts to
8444: change a users, password, possible return values are: ok,
8445: pwchange_failure, non_authorized, auth_mode_error, unknown_user,
8446: refused
1.191 harris41 8447:
8448: =item *
8449:
1.243 albertel 8450: modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication
1.191 harris41 8451:
8452: =item *
8453:
1.243 albertel 8454: modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) :
8455: modify user
1.191 harris41 8456:
8457: =item *
8458:
1.286 matthew 8459: modifystudent
8460:
8461: modify a students enrollment and identification information.
8462: The course id is resolved based on the current users environment.
8463: This means the envoking user must be a course coordinator or otherwise
8464: associated with a course.
8465:
1.297 matthew 8466: This call is essentially a wrapper for lonnet::modifyuser and
8467: lonnet::modify_student_enrollment
1.286 matthew 8468:
8469: Inputs:
8470:
8471: =over 4
8472:
8473: =item B<$udom> Students loncapa domain
8474:
8475: =item B<$uname> Students loncapa login name
8476:
8477: =item B<$uid> Students id/student number
8478:
8479: =item B<$umode> Students authentication mode
8480:
8481: =item B<$upass> Students password
8482:
8483: =item B<$first> Students first name
8484:
8485: =item B<$middle> Students middle name
8486:
8487: =item B<$last> Students last name
8488:
8489: =item B<$gene> Students generation
8490:
8491: =item B<$usec> Students section in course
8492:
8493: =item B<$end> Unix time of the roles expiration
8494:
8495: =item B<$start> Unix time of the roles start date
8496:
8497: =item B<$forceid> If defined, allow $uid to be changed
8498:
8499: =item B<$desiredhome> server to use as home server for student
8500:
8501: =back
1.297 matthew 8502:
8503: =item *
8504:
8505: modify_student_enrollment
8506:
8507: Change a students enrollment status in a class. The environment variable
8508: 'role.request.course' must be defined for this function to proceed.
8509:
8510: Inputs:
8511:
8512: =over 4
8513:
8514: =item $udom, students domain
8515:
8516: =item $uname, students name
8517:
8518: =item $uid, students user id
8519:
8520: =item $first, students first name
8521:
8522: =item $middle
8523:
8524: =item $last
8525:
8526: =item $gene
8527:
8528: =item $usec
8529:
8530: =item $end
8531:
8532: =item $start
8533:
8534: =back
8535:
1.191 harris41 8536:
8537: =item *
8538:
1.243 albertel 8539: assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign
8540: custom role; give a custom role to a user for the level given by URL. Specify
8541: name and domain of role author, and role name
1.191 harris41 8542:
8543: =item *
8544:
1.243 albertel 8545: revokerole($udom,$uname,$url,$role) : revoke a role for url
1.191 harris41 8546:
8547: =item *
8548:
1.243 albertel 8549: revokecustomrole($udom,$uname,$url,$role) : revoke a custom role
8550:
8551: =back
8552:
8553: =head2 Course Infomation
8554:
8555: =over 4
1.191 harris41 8556:
8557: =item *
8558:
1.631 albertel 8559: coursedescription($courseid) : returns a hash of information about the
8560: specified course id, including all environment settings for the
8561: course, the description of the course will be in the hash under the
8562: key 'description'
1.191 harris41 8563:
8564: =item *
8565:
1.624 albertel 8566: resdata($name,$domain,$type,@which) : request for current parameter
8567: setting for a specific $type, where $type is either 'course' or 'user',
8568: @what should be a list of parameters to ask about. This routine caches
8569: answers for 5 minutes.
1.243 albertel 8570:
1.877 foxr 8571: =item *
8572:
8573: get_courseresdata($courseid, $domain) : dump the entire course resource
8574: data base, returning a hash that is keyed by the resource name and has
8575: values that are the resource value. I believe that the timestamps and
8576: versions are also returned.
8577:
8578:
1.243 albertel 8579: =back
8580:
8581: =head2 Course Modification
8582:
8583: =over 4
1.191 harris41 8584:
8585: =item *
8586:
1.243 albertel 8587: writecoursepref($courseid,%prefs) : write preferences (environment
8588: database) for a course
1.191 harris41 8589:
8590: =item *
8591:
1.243 albertel 8592: createcourse($udom,$description,$url) : make/modify course
8593:
8594: =back
8595:
8596: =head2 Resource Subroutines
8597:
8598: =over 4
1.191 harris41 8599:
8600: =item *
8601:
1.243 albertel 8602: subscribe($fname) : subscribe to a resource, returns URL if possible (probably should use repcopy instead)
1.191 harris41 8603:
8604: =item *
8605:
1.243 albertel 8606: repcopy($filename) : subscribes to the requested file, and attempts to
8607: replicate from the owning library server, Might return
1.607 raeburn 8608: 'unavailable', 'not_found', 'forbidden', 'ok', or
8609: 'bad_request', also attempts to grab the metadata for the
1.243 albertel 8610: resource. Expects the local filesystem pathname
8611: (/home/httpd/html/res/....)
8612:
8613: =back
8614:
8615: =head2 Resource Information
8616:
8617: =over 4
1.191 harris41 8618:
8619: =item *
8620:
1.243 albertel 8621: EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
8622: a vairety of different possible values, $varname should be a request
8623: string, and the other parameters can be used to specify who and what
8624: one is asking about.
8625:
8626: Possible values for $varname are environment.lastname (or other item
8627: from the envirnment hash), user.name (or someother aspect about the
8628: user), resource.0.maxtries (or some other part and parameter of a
8629: resource)
1.204 albertel 8630:
8631: =item *
8632:
1.243 albertel 8633: directcondval($number) : get current value of a condition; reads from a state
8634: string
1.204 albertel 8635:
8636: =item *
8637:
1.243 albertel 8638: condval($condidx) : value of condition index based on state
1.204 albertel 8639:
8640: =item *
8641:
1.243 albertel 8642: metadata($uri,$what,$liburi,$prefix,$depthcount) : request a
8643: resource's metadata, $what should be either a specific key, or either
8644: 'keys' (to get a list of possible keys) or 'packages' to get a list of
8645: packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.
8646:
8647: this function automatically caches all requests
1.191 harris41 8648:
8649: =item *
8650:
1.243 albertel 8651: metadata_query($query,$custom,$customshow) : make a metadata query against the
8652: network of library servers; returns file handle of where SQL and regex results
8653: will be stored for query
1.191 harris41 8654:
8655: =item *
8656:
1.243 albertel 8657: symbread($filename) : return symbolic list entry (filename argument optional);
8658: returns the data handle
1.191 harris41 8659:
8660: =item *
8661:
1.243 albertel 8662: symbverify($symb,$thisfn) : verifies that $symb actually exists and is
1.582 albertel 8663: a possible symb for the URL in $thisfn, and if is an encryypted
8664: resource that the user accessed using /enc/ returns a 1 on success, 0
8665: on failure, user must be in a course, as it assumes the existance of
1.620 albertel 8666: the course initial hash, and uses $env('request.course.id'}
1.243 albertel 8667:
1.191 harris41 8668:
8669: =item *
8670:
1.243 albertel 8671: symbclean($symb) : removes versions numbers from a symb, returns the
8672: cleaned symb
1.191 harris41 8673:
8674: =item *
8675:
1.243 albertel 8676: is_on_map($uri) : checks if the $uri is somewhere on the current
8677: course map, user must be in a course for it to work.
1.191 harris41 8678:
8679: =item *
8680:
1.243 albertel 8681: numval($salt) : return random seed value (addend for rndseed)
1.191 harris41 8682:
8683: =item *
8684:
1.243 albertel 8685: rndseed($symb,$courseid,$udom,$uname) : create a random sum; returns
8686: a random seed, all arguments are optional, if they aren't sent it uses the
8687: environment to derive them. Note: if symb isn't sent and it can't get one
8688: from &symbread it will use the current time as its return value
1.191 harris41 8689:
8690: =item *
8691:
1.243 albertel 8692: ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique,
8693: unfakeable, receipt
1.191 harris41 8694:
8695: =item *
8696:
1.620 albertel 8697: receipt() : API to ireceipt working off of env values; given out to users
1.191 harris41 8698:
8699: =item *
8700:
1.243 albertel 8701: countacc($url) : count the number of accesses to a given URL
1.191 harris41 8702:
8703: =item *
8704:
1.243 albertel 8705: checkout($symb,$tuname,$tudom,$tcrsid) : creates a record of a user having looked at an item, most likely printed out or otherwise using a resource
1.191 harris41 8706:
8707: =item *
8708:
1.243 albertel 8709: checkin($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 $tcrsid)
1.191 harris41 8710:
8711: =item *
8712:
1.243 albertel 8713: expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet
1.191 harris41 8714:
8715: =item *
8716:
1.243 albertel 8717: devalidate($symb) : devalidate temporary spreadsheet calculations,
8718: forcing spreadsheet to reevaluate the resource scores next time.
8719:
8720: =back
8721:
8722: =head2 Storing/Retreiving Data
8723:
8724: =over 4
1.191 harris41 8725:
8726: =item *
8727:
1.243 albertel 8728: store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
8729: for this url; hashref needs to be given and should be a \%hashname; the
8730: remaining args aren't required and if they aren't passed or are '' they will
1.620 albertel 8731: be derived from the env
1.191 harris41 8732:
8733: =item *
8734:
1.243 albertel 8735: cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
8736: uses critical subroutine
1.191 harris41 8737:
8738: =item *
8739:
1.243 albertel 8740: restore($symb,$namespace,$udom,$uname) : returns hash for this symb;
8741: all args are optional
1.191 harris41 8742:
8743: =item *
8744:
1.717 albertel 8745: dumpstore($namespace,$udom,$uname,$regexp,$range) :
8746: dumps the complete (or key matching regexp) namespace into a hash
8747: ($udom, $uname, $regexp, $range are optional) for a namespace that is
8748: normally &store()ed into
8749:
8750: $range should be either an integer '100' (give me the first 100
8751: matching records)
8752: or be two integers sperated by a - with no spaces
8753: '30-50' (give me the 30th through the 50th matching
8754: records)
8755:
8756:
8757: =item *
8758:
8759: putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
8760: replaces a &store() version of data with a replacement set of data
8761: for a particular resource in a namespace passed in the $storehash hash
8762: reference
8763:
8764: =item *
8765:
1.243 albertel 8766: tmpstore($storehash,$symb,$namespace,$udom,$uname) : storage that
8767: works very similar to store/cstore, but all data is stored in a
8768: temporary location and can be reset using tmpreset, $storehash should
8769: be a hash reference, returns nothing on success
1.191 harris41 8770:
8771: =item *
8772:
1.243 albertel 8773: tmprestore($symb,$namespace,$udom,$uname) : storage that works very
8774: similar to restore, but all data is stored in a temporary location and
8775: can be reset using tmpreset. Returns a hash of values on success,
8776: error string otherwise.
1.191 harris41 8777:
8778: =item *
8779:
1.243 albertel 8780: tmpreset($symb,$namespace,$udom,$uname) : temporary storage reset,
8781: deltes all keys for $symb form the temporary storage hash.
1.191 harris41 8782:
8783: =item *
8784:
1.243 albertel 8785: get($namespace,$storearr,$udom,$uname) : returns hash with keys from array
8786: reference filled in from namesp ($udom and $uname are optional)
1.191 harris41 8787:
8788: =item *
8789:
1.243 albertel 8790: del($namespace,$storearr,$udom,$uname) : deletes keys out of array from
8791: namesp ($udom and $uname are optional)
1.191 harris41 8792:
8793: =item *
8794:
1.702 albertel 8795: dump($namespace,$udom,$uname,$regexp,$range) :
1.243 albertel 8796: dumps the complete (or key matching regexp) namespace into a hash
1.702 albertel 8797: ($udom, $uname, $regexp, $range are optional)
1.449 matthew 8798:
1.702 albertel 8799: $range should be either an integer '100' (give me the first 100
8800: matching records)
8801: or be two integers sperated by a - with no spaces
8802: '30-50' (give me the 30th through the 50th matching
8803: records)
1.449 matthew 8804: =item *
8805:
8806: inc($namespace,$store,$udom,$uname) : increments $store in $namespace.
8807: $store can be a scalar, an array reference, or if the amount to be
8808: incremented is > 1, a hash reference.
8809:
8810: ($udom and $uname are optional)
1.191 harris41 8811:
8812: =item *
8813:
1.243 albertel 8814: put($namespace,$storehash,$udom,$uname) : stores hash in namesp
8815: ($udom and $uname are optional)
1.191 harris41 8816:
8817: =item *
8818:
1.243 albertel 8819: cput($namespace,$storehash,$udom,$uname) : critical put
8820: ($udom and $uname are optional)
1.191 harris41 8821:
8822: =item *
8823:
1.748 albertel 8824: newput($namespace,$storehash,$udom,$uname) :
8825:
8826: Attempts to store the items in the $storehash, but only if they don't
8827: currently exist, if this succeeds you can be certain that you have
8828: successfully created a new key value pair in the $namespace db.
8829:
8830:
8831: Args:
8832: $namespace: name of database to store values to
8833: $storehash: hashref to store to the db
8834: $udom: (optional) domain of user containing the db
8835: $uname: (optional) name of user caontaining the db
8836:
8837: Returns:
8838: 'ok' -> succeeded in storing all keys of $storehash
8839: 'key_exists: <key>' -> failed to anything out of $storehash, as at
8840: least <key> already existed in the db (other
8841: requested keys may also already exist)
8842: 'error: <msg>' -> unable to tie the DB or other erorr occured
8843: 'con_lost' -> unable to contact request server
8844: 'refused' -> action was not allowed by remote machine
8845:
8846:
8847: =item *
8848:
1.243 albertel 8849: eget($namespace,$storearr,$udom,$uname) : returns hash with keys from array
8850: reference filled in from namesp (encrypts the return communication)
8851: ($udom and $uname are optional)
1.191 harris41 8852:
8853: =item *
8854:
1.243 albertel 8855: log($udom,$name,$home,$message) : write to permanent log for user; use
8856: critical subroutine
8857:
1.806 raeburn 8858: =item *
8859:
1.860 raeburn 8860: get_dom($namespace,$storearr,$udom,$uhome) : returns hash with keys from
8861: array reference filled in from namespace found in domain level on either
8862: specified domain server ($uhome) or primary domain server ($udom and $uhome are optional).
1.806 raeburn 8863:
8864: =item *
8865:
1.860 raeburn 8866: put_dom($namespace,$storehash,$udom,$uhome) : stores hash in namespace at
8867: domain level either on specified domain server ($uhome) or primary domain
8868: server ($udom and $uhome are optional)
1.806 raeburn 8869:
1.243 albertel 8870: =back
8871:
8872: =head2 Network Status Functions
8873:
8874: =over 4
1.191 harris41 8875:
8876: =item *
8877:
8878: dirlist($uri) : return directory list based on URI
8879:
8880: =item *
8881:
1.243 albertel 8882: spareserver() : find server with least workload from spare.tab
8883:
8884: =back
8885:
8886: =head2 Apache Request
8887:
8888: =over 4
1.191 harris41 8889:
8890: =item *
8891:
1.243 albertel 8892: ssi($url,%hash) : server side include, does a complete request cycle on url to
8893: localhost, posts hash
8894:
8895: =back
8896:
8897: =head2 Data to String to Data
8898:
8899: =over 4
1.191 harris41 8900:
8901: =item *
8902:
1.243 albertel 8903: hash2str(%hash) : convert a hash into a string complete with escaping and '='
8904: and '&' separators, supports elements that are arrayrefs and hashrefs
1.191 harris41 8905:
8906: =item *
8907:
1.243 albertel 8908: hashref2str($hashref) : convert a hashref into a string complete with
8909: escaping and '=' and '&' separators, supports elements that are
8910: arrayrefs and hashrefs
1.191 harris41 8911:
8912: =item *
8913:
1.243 albertel 8914: arrayref2str($arrayref) : convert an arrayref into a string complete
8915: with escaping and '&' separators, supports elements that are arrayrefs
8916: and hashrefs
1.191 harris41 8917:
8918: =item *
8919:
1.243 albertel 8920: str2hash($string) : convert string to hash using unescaping and
8921: splitting on '=' and '&', supports elements that are arrayrefs and
8922: hashrefs
1.191 harris41 8923:
8924: =item *
8925:
1.243 albertel 8926: str2array($string) : convert string to hash using unescaping and
8927: splitting on '&', supports elements that are arrayrefs and hashrefs
8928:
8929: =back
8930:
8931: =head2 Logging Routines
8932:
8933: =over 4
8934:
8935: These routines allow one to make log messages in the lonnet.log and
8936: lonnet.perm logfiles.
1.191 harris41 8937:
8938: =item *
8939:
1.243 albertel 8940: logtouch() : make sure the logfile, lonnet.log, exists
1.191 harris41 8941:
8942: =item *
8943:
1.243 albertel 8944: logthis() : append message to the normal lonnet.log file, it gets
8945: preiodically rolled over and deleted.
1.191 harris41 8946:
8947: =item *
8948:
1.243 albertel 8949: logperm() : append a permanent message to lonnet.perm.log, this log
8950: file never gets deleted by any automated portion of the system, only
8951: messages of critical importance should go in here.
8952:
8953: =back
8954:
8955: =head2 General File Helper Routines
8956:
8957: =over 4
1.191 harris41 8958:
8959: =item *
8960:
1.481 raeburn 8961: getfile($file,$caller) : two cases - requests for files in /res or in /uploaded.
8962: (a) files in /uploaded
8963: (i) If a local copy of the file exists -
8964: compares modification date of local copy with last-modified date for
8965: definitive version stored on home server for course. If local copy is
8966: stale, requests a new version from the home server and stores it.
8967: If the original has been removed from the home server, then local copy
8968: is unlinked.
8969: (ii) If local copy does not exist -
8970: requests the file from the home server and stores it.
8971:
8972: If $caller is 'uploadrep':
8973: This indicates a call from lonuploadrep.pm (PerlHeaderParserHandler phase)
8974: for request for files originally uploaded via DOCS.
8975: - returns 'ok' if fresh local copy now available, -1 otherwise.
8976:
8977: Otherwise:
8978: This indicates a call from the content generation phase of the request.
8979: - returns the entire contents of the file or -1.
8980:
8981: (b) files in /res
8982: - returns the entire contents of a file or -1;
8983: it properly subscribes to and replicates the file if neccessary.
1.191 harris41 8984:
1.712 albertel 8985:
8986: =item *
8987:
8988: stat_file($url) : $url is expected to be a /res/ or /uploaded/ style file
8989: reference
8990:
8991: returns either a stat() list of data about the file or an empty list
8992: if the file doesn't exist or couldn't find out about it (connection
8993: problems or user unknown)
8994:
1.191 harris41 8995: =item *
8996:
1.243 albertel 8997: filelocation($dir,$file) : returns file system location of a file
8998: based on URI; meant to be "fairly clean" absolute reference, $dir is a
8999: directory that relative $file lookups are to looked in ($dir of /a/dir
9000: and a file of ../bob will become /a/bob)
1.191 harris41 9001:
9002: =item *
9003:
9004: hreflocation($dir,$file) : returns file system location or a URL; same as
9005: filelocation except for hrefs
9006:
9007: =item *
9008:
9009: declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
9010:
1.243 albertel 9011: =back
9012:
1.608 albertel 9013: =head2 Usererfile file routines (/uploaded*)
9014:
9015: =over 4
9016:
9017: =item *
9018:
9019: userfileupload(): main rotine for putting a file in a user or course's
9020: filespace, arguments are,
9021:
1.620 albertel 9022: formname - required - this is the name of the element in $env where the
1.608 albertel 9023: filename, and the contents of the file to create/modifed exist
1.620 albertel 9024: the filename is in $env{'form.'.$formname.'.filename'} and the
9025: contents of the file is located in $env{'form.'.$formname}
1.608 albertel 9026: coursedoc - if true, store the file in the course of the active role
9027: of the current user
9028: subdir - required - subdirectory to put the file in under ../userfiles/
9029: if undefined, it will be placed in "unknown"
9030:
9031: (This routine calls clean_filename() to remove any dangerous
9032: characters from the filename, and then calls finuserfileupload() to
9033: complete the transaction)
9034:
9035: returns either the url of the uploaded file (/uploaded/....) if successful
9036: and /adm/notfound.html if unsuccessful
9037:
9038: =item *
9039:
9040: clean_filename(): routine for cleaing a filename up for storage in
9041: userfile space, argument is:
9042:
9043: filename - proposed filename
9044:
9045: returns: the new clean filename
9046:
9047: =item *
9048:
9049: finishuserfileupload(): routine that creaes and sends the file to
9050: userspace, probably shouldn't be called directly
9051:
9052: docuname: username or courseid of destination for the file
9053: docudom: domain of user/course of destination for the file
9054: formname: same as for userfileupload()
9055: fname: filename (inculding subdirectories) for the file
9056:
9057: returns either the url of the uploaded file (/uploaded/....) if successful
9058: and /adm/notfound.html if unsuccessful
9059:
9060: =item *
9061:
9062: renameuserfile(): renames an existing userfile to a new name
9063:
9064: Args:
9065: docuname: username or courseid of destination for the file
9066: docudom: domain of user/course of destination for the file
9067: old: current file name (including any subdirs under userfiles)
9068: new: desired file name (including any subdirs under userfiles)
9069:
9070: =item *
9071:
9072: mkdiruserfile(): creates a directory is a userfiles dir
9073:
9074: Args:
9075: docuname: username or courseid of destination for the file
9076: docudom: domain of user/course of destination for the file
9077: dir: dir to create (including any subdirs under userfiles)
9078:
9079: =item *
9080:
9081: removeuserfile(): removes a file that exists in userfiles
9082:
9083: Args:
9084: docuname: username or courseid of destination for the file
9085: docudom: domain of user/course of destination for the file
9086: fname: filname to delete (including any subdirs under userfiles)
9087:
9088: =item *
9089:
9090: removeuploadedurl(): convience function for removeuserfile()
9091:
9092: Args:
9093: url: a full /uploaded/... url to delete
9094:
1.747 albertel 9095: =item *
9096:
9097: get_portfile_permissions():
9098: Args:
9099: domain: domain of user or course contain the portfolio files
9100: user: name of user or num of course contain the portfolio files
9101: Returns:
9102: hashref of a dump of the proper file_permissions.db
9103:
9104:
9105: =item *
9106:
9107: get_access_controls():
9108:
9109: Args:
9110: current_permissions: the hash ref returned from get_portfile_permissions()
9111: group: (optional) the group you want the files associated with
9112: file: (optional) the file you want access info on
9113:
9114: Returns:
1.749 raeburn 9115: a hash (keys are file names) of hashes containing
9116: keys are: path to file/file_name\0uniqueID:scope_end_start (see below)
9117: values are XML containing access control settings (see below)
1.747 albertel 9118:
9119: Internal notes:
9120:
1.749 raeburn 9121: access controls are stored in file_permissions.db as key=value pairs.
9122: key -> path to file/file_name\0uniqueID:scope_end_start
9123: where scope -> public,guest,course,group,domains or users.
9124: end -> UNIX time for end of access (0 -> no end date)
9125: start -> UNIX time for start of access
9126:
9127: value -> XML description of access control
9128: <scope type=""> (type =1 of: public,guest,course,group,domains,users">
9129: <start></start>
9130: <end></end>
9131:
9132: <password></password> for scope type = guest
9133:
9134: <domain></domain> for scope type = course or group
9135: <number></number>
9136: <roles id="">
9137: <role></role>
9138: <access></access>
9139: <section></section>
9140: <group></group>
9141: </roles>
9142:
9143: <dom></dom> for scope type = domains
9144:
9145: <users> for scope type = users
9146: <user>
9147: <uname></uname>
9148: <udom></udom>
9149: </user>
9150: </users>
9151: </scope>
9152:
9153: Access data is also aggregated for each file in an additional key=value pair:
9154: key -> path to file/file_name\0accesscontrol
9155: value -> reference to hash
9156: hash contains key = value pairs
9157: where key = uniqueID:scope_end_start
9158: value = UNIX time record was last updated
9159:
9160: Used to improve speed of look-ups of access controls for each file.
9161:
9162: Locks on files (resulting from submission of portfolio file to a homework problem stored in array of arrays.
9163:
9164: modify_access_controls():
9165:
9166: Modifies access controls for a portfolio file
9167: Args
9168: 1. file name
9169: 2. reference to hash of required changes,
9170: 3. domain
9171: 4. username
9172: where domain,username are the domain of the portfolio owner
9173: (either a user or a course)
9174:
9175: Returns:
9176: 1. result of additions or updates ('ok' or 'error', with error message).
9177: 2. result of deletions ('ok' or 'error', with error message).
9178: 3. reference to hash of any new or updated access controls.
9179: 4. reference to hash used to map incoming IDs to uniqueIDs assigned to control.
9180: key = integer (inbound ID)
9181: value = uniqueID
1.747 albertel 9182:
1.608 albertel 9183: =back
9184:
1.243 albertel 9185: =head2 HTTP Helper Routines
9186:
9187: =over 4
9188:
1.191 harris41 9189: =item *
9190:
9191: escape() : unpack non-word characters into CGI-compatible hex codes
9192:
9193: =item *
9194:
9195: unescape() : pack CGI-compatible hex codes into actual non-word ASCII character
9196:
1.243 albertel 9197: =back
9198:
9199: =head1 PRIVATE SUBROUTINES
9200:
9201: =head2 Underlying communication routines (Shouldn't call)
9202:
9203: =over 4
9204:
9205: =item *
9206:
9207: subreply() : tries to pass a message to lonc, returns con_lost if incapable
9208:
9209: =item *
9210:
9211: reply() : uses subreply to send a message to remote machine, logs all failures
9212:
9213: =item *
9214:
9215: critical() : passes a critical message to another server; if cannot
9216: get through then place message in connection buffer directory and
9217: returns con_delayed, if incapable of saving message, returns
9218: con_failed
9219:
9220: =item *
9221:
9222: reconlonc() : tries to reconnect lonc client processes.
9223:
9224: =back
9225:
9226: =head2 Resource Access Logging
9227:
9228: =over 4
9229:
9230: =item *
9231:
9232: flushcourselogs() : flush (save) buffer logs and access logs
9233:
9234: =item *
9235:
9236: courselog($what) : save message for course in hash
9237:
9238: =item *
9239:
9240: courseacclog($what) : save message for course using &courselog(). Perform
9241: special processing for specific resource types (problems, exams, quizzes, etc).
9242:
1.191 harris41 9243: =item *
9244:
9245: goodbye() : flush course logs and log shutting down; it is called in srm.conf
9246: as a PerlChildExitHandler
1.243 albertel 9247:
9248: =back
9249:
9250: =head2 Other
9251:
9252: =over 4
9253:
9254: =item *
9255:
9256: symblist($mapname,%newhash) : update symbolic storage links
1.191 harris41 9257:
9258: =back
9259:
9260: =cut
1.877 foxr 9261:
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