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version 1.2, 1999/11/08 16:20:35
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version 1.197, 2002/01/04 16:31:41
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| # The LearningOnline Network |
# The LearningOnline Network |
| # TCP networking package |
# TCP networking package |
| |
# |
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# $Id$ |
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# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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# |
| # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
# 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30, |
| # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,11/8 Gerd Kortemeyer |
# 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19, |
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# 11/8,11/16,11/18,11/22,11/23,12/22, |
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# 01/06,01/13,02/24,02/28,02/29, |
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# 03/01,03/02,03/06,03/07,03/13, |
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# 04/05,05/29,05/31,06/01, |
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# 06/05,06/26 Gerd Kortemeyer |
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# 06/26 Ben Tyszka |
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# 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer |
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# 08/14 Ben Tyszka |
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# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer |
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# 10/04 Gerd Kortemeyer |
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# 10/04 Guy Albertelli |
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# 10/06,10/09,10/10,10/11,10/14,10/20,10/23,10/25,10/26,10/27,10/28,10/29, |
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# 10/30,10/31, |
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# 11/2,11/14,11/15,11/16,11/20,11/21,11/22,11/25,11/27, |
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# 12/02,12/12,12/13,12/14,12/28,12/29 Gerd Kortemeyer |
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# 05/01/01 Guy Albertelli |
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# 05/01,06/01,09/01 Gerd Kortemeyer |
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# 09/01 Guy Albertelli |
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# 09/01,10/01,11/01 Gerd Kortemeyer |
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# YEAR=2001 |
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# 02/27/01 Scott Harrison |
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# 3/2 Gerd Kortemeyer |
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# 3/15,3/19 Scott Harrison |
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# 3/19,3/20 Gerd Kortemeyer |
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# 3/22,3/27,4/2,4/16,4/17 Scott Harrison |
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# 5/26,5/28 Gerd Kortemeyer |
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# 5/30 H. K. Ng |
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# 6/1 Gerd Kortemeyer |
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# July Guy Albertelli |
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# 8/4,8/7,8/8,8/9,8/11,8/16,8/17,8/18,8/20,8/23,9/20,9/21,9/26, |
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# 10/2 Gerd Kortemeyer |
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# 10/5,10/10,11/13,11/15 Scott Harrison |
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# 11/17,11/20,11/22,11/29 Gerd Kortemeyer |
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# 12/5 Matthew Hall |
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# 12/5 Guy Albertelli |
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# 12/6,12/7,12/12 Gerd Kortemeyer |
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# 12/18 Scott Harrison |
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# 12/21,12/22,12/27,12/28 Gerd Kortemeyer |
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# YEAR=2002 |
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# 1/4 Gerd Kortemeyer |
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# |
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### |
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|
| package Apache::lonnet; |
package Apache::lonnet; |
| |
|
| use strict; |
use strict; |
| use Apache::File; |
use Apache::File; |
| use vars qw(%perlvar %hostname %homecache %spareid %hostdom %libserv $readit); |
use LWP::UserAgent(); |
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use HTTP::Headers; |
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use vars |
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qw(%perlvar %hostname %homecache %hostip %spareid %hostdom |
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%libserv %pr %prp %metacache %packagetab |
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%courselogs %accesshash $processmarker $dumpcount |
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%coursedombuf %coursehombuf); |
| use IO::Socket; |
use IO::Socket; |
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use GDBM_File; |
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use Apache::Constants qw(:common :http); |
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use HTML::TokeParser; |
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use Fcntl qw(:flock); |
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my $readit; |
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|
| # --------------------------------------------------------------------- Logging |
# --------------------------------------------------------------------- Logging |
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|
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sub logtouch { |
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my $execdir=$perlvar{'lonDaemons'}; |
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unless (-e "$execdir/logs/lonnet.log") { |
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my $fh=Apache::File->new(">>$execdir/logs/lonnet.log"); |
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close $fh; |
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} |
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my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3]; |
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chown($wwwuid,$wwwgid,$execdir.'/logs/lonnet.log'); |
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} |
| |
|
| sub logthis { |
sub logthis { |
| my $message=shift; |
my $message=shift; |
| my $execdir=$perlvar{'lonDaemons'}; |
my $execdir=$perlvar{'lonDaemons'}; |
|
Line 42 sub subreply {
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Line 130 sub subreply {
|
| or return "con_lost"; |
or return "con_lost"; |
| print $client "$cmd\n"; |
print $client "$cmd\n"; |
| my $answer=<$client>; |
my $answer=<$client>; |
| chomp($answer); |
|
| if (!$answer) { $answer="con_lost"; } |
if (!$answer) { $answer="con_lost"; } |
| |
chomp($answer); |
| return $answer; |
return $answer; |
| } |
} |
| |
|
|
Line 51 sub reply {
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Line 139 sub reply {
|
| my ($cmd,$server)=@_; |
my ($cmd,$server)=@_; |
| my $answer=subreply($cmd,$server); |
my $answer=subreply($cmd,$server); |
| if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); } |
if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); } |
| return $answer; |
if (($answer=~/^refused/) || ($answer=~/^rejected/)) { |
| } |
&logthis("<font color=blue>WARNING:". |
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" $cmd to $server returned $answer</font>"); |
| # ------------------------------------------------ Try to send delayed messages |
|
| |
|
| sub senddelayed { |
|
| my $server=shift; |
|
| my $dfname; |
|
| my $path="$perlvar{'lonSockDir'}/delayed"; |
|
| while ($dfname=<$path/*.$server>) { |
|
| my $wcmd; |
|
| { |
|
| my $dfh=Apache::File->new($dfname); |
|
| $wcmd=<$dfh>; |
|
| } |
|
| my ($server,$cmd)=split(/:/,$wcmd); |
|
| chomp($cmd); |
|
| my $answer=subreply($cmd,$server); |
|
| if ($answer ne 'con_lost') { |
|
| unlink("$dfname"); |
|
| &logthis("Delayed $cmd to $server: $answer"); |
|
| &logperm("S:$server:$cmd"); |
|
| } |
|
| } |
} |
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return $answer; |
| } |
} |
| |
|
| # ----------------------------------------------------------- Send USR1 to lonc |
# ----------------------------------------------------------- Send USR1 to lonc |
|
Line 94 sub reconlonc {
|
Line 163 sub reconlonc {
|
| &logthis("$peerfile still not there, give it another try"); |
&logthis("$peerfile still not there, give it another try"); |
| sleep 5; |
sleep 5; |
| if (-e "$peerfile") { return; } |
if (-e "$peerfile") { return; } |
| &logthis("$peerfile still not there, giving up"); |
&logthis( |
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"<font color=blue>WARNING: $peerfile still not there, giving up</font>"); |
| } else { |
} else { |
| &logthis("lonc at pid $loncpid not responding, giving up"); |
&logthis( |
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"<font color=blue>WARNING:". |
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" lonc at pid $loncpid not responding, giving up</font>"); |
| } |
} |
| } else { |
} else { |
| &logthis('lonc not running, giving up'); |
&logthis('<font color=blue>WARNING: lonc not running, giving up</font>'); |
| } |
} |
| } |
} |
| |
|
| # ------------------------------------------------------ Critical communication |
# ------------------------------------------------------ Critical communication |
| |
|
| sub critical { |
sub critical { |
| my ($cmd,$server)=@_; |
my ($cmd,$server)=@_; |
| &senddelayed($server); |
unless ($hostname{$server}) { |
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&logthis("<font color=blue>WARNING:". |
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" Critical message to unknown server ($server)</font>"); |
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return 'no_such_host'; |
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} |
| my $answer=reply($cmd,$server); |
my $answer=reply($cmd,$server); |
| if ($answer eq 'con_lost') { |
if ($answer eq 'con_lost') { |
| my $pingreply=reply('ping',$server); |
my $pingreply=reply('ping',$server); |
|
Line 117 sub critical {
|
Line 194 sub critical {
|
| if ($answer eq 'con_lost') { |
if ($answer eq 'con_lost') { |
| my $now=time; |
my $now=time; |
| my $middlename=$cmd; |
my $middlename=$cmd; |
| |
$middlename=substr($middlename,0,16); |
| $middlename=~s/\W//g; |
$middlename=~s/\W//g; |
| my $dfilename= |
my $dfilename= |
| "$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server"; |
"$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server"; |
| { |
{ |
| my $dfh; |
my $dfh; |
| if ($dfh=Apache::File->new(">$dfilename")) { |
if ($dfh=Apache::File->new(">$dfilename")) { |
| print $dfh "$server:$cmd\n"; |
print $dfh "$cmd\n"; |
| } |
} |
| } |
} |
| sleep 2; |
sleep 2; |
|
Line 135 sub critical {
|
Line 213 sub critical {
|
| } |
} |
| } |
} |
| chomp($wcmd); |
chomp($wcmd); |
| if ($wcmd eq "$server:$cmd") { |
if ($wcmd eq $cmd) { |
| &logthis("Connection buffer $dfilename: $cmd"); |
&logthis("<font color=blue>WARNING: ". |
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"Connection buffer $dfilename: $cmd</font>"); |
| &logperm("D:$server:$cmd"); |
&logperm("D:$server:$cmd"); |
| return 'con_delayed'; |
return 'con_delayed'; |
| } else { |
} else { |
| &logthis("CRITICAL CONNECTION FAILED: $server $cmd"); |
&logthis("<font color=red>CRITICAL:" |
| |
." Critical connection failed: $server $cmd</font>"); |
| &logperm("F:$server:$cmd"); |
&logperm("F:$server:$cmd"); |
| return 'con_failed'; |
return 'con_failed'; |
| } |
} |
|
Line 149 sub critical {
|
Line 229 sub critical {
|
| return $answer; |
return $answer; |
| } |
} |
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|
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# ---------------------------------------------------------- Append Environment |
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|
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sub appenv { |
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my %newenv=@_; |
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foreach (keys %newenv) { |
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if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) { |
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&logthis("<font color=blue>WARNING: ". |
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"Attempt to modify environment ".$_." to ".$newenv{$_} |
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.'</font>'); |
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delete($newenv{$_}); |
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} else { |
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$ENV{$_}=$newenv{$_}; |
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} |
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} |
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|
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my $lockfh; |
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unless ($lockfh=Apache::File->new("$ENV{'user.environment'}")) { |
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return 'error: '.$!; |
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} |
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unless (flock($lockfh,LOCK_EX)) { |
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&logthis("<font color=blue>WARNING: ". |
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'Could not obtain exclusive lock in appenv: '.$!); |
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$lockfh->close(); |
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return 'error: '.$!; |
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} |
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|
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my @oldenv; |
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{ |
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my $fh; |
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unless ($fh=Apache::File->new("$ENV{'user.environment'}")) { |
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return 'error: '.$!; |
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} |
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@oldenv=<$fh>; |
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$fh->close(); |
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} |
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for (my $i=0; $i<=$#oldenv; $i++) { |
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chomp($oldenv[$i]); |
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if ($oldenv[$i] ne '') { |
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my ($name,$value)=split(/=/,$oldenv[$i]); |
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unless (defined($newenv{$name})) { |
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$newenv{$name}=$value; |
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} |
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} |
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} |
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{ |
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my $fh; |
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unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) { |
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return 'error'; |
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} |
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my $newname; |
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foreach $newname (keys %newenv) { |
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print $fh "$newname=$newenv{$newname}\n"; |
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} |
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$fh->close(); |
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} |
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|
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$lockfh->close(); |
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return 'ok'; |
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} |
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# ----------------------------------------------------- Delete from Environment |
| |
|
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sub delenv { |
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my $delthis=shift; |
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my %newenv=(); |
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if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) { |
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&logthis("<font color=blue>WARNING: ". |
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"Attempt to delete from environment ".$delthis); |
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return 'error'; |
| |
} |
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my @oldenv; |
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{ |
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my $fh; |
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unless ($fh=Apache::File->new("$ENV{'user.environment'}")) { |
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return 'error'; |
| |
} |
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unless (flock($fh,LOCK_SH)) { |
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&logthis("<font color=blue>WARNING: ". |
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'Could not obtain shared lock in delenv: '.$!); |
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$fh->close(); |
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return 'error: '.$!; |
| |
} |
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@oldenv=<$fh>; |
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$fh->close(); |
| |
} |
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{ |
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my $fh; |
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unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) { |
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return 'error'; |
| |
} |
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unless (flock($fh,LOCK_EX)) { |
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&logthis("<font color=blue>WARNING: ". |
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'Could not obtain exclusive lock in delenv: '.$!); |
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$fh->close(); |
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return 'error: '.$!; |
| |
} |
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foreach (@oldenv) { |
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unless ($_=~/^$delthis/) { print $fh $_; } |
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} |
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$fh->close(); |
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} |
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return 'ok'; |
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} |
| |
|
| # ------------------------------ Find server with least workload from spare.tab |
# ------------------------------ Find server with least workload from spare.tab |
| |
|
| sub spareserver { |
sub spareserver { |
| my $tryserver; |
my $tryserver; |
| my $spareserver=''; |
my $spareserver=''; |
|
Line 165 sub spareserver {
|
Line 348 sub spareserver {
|
| return $spareserver; |
return $spareserver; |
| } |
} |
| |
|
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# ----------------------- Try to determine user's current authentication scheme |
| |
|
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sub queryauthenticate { |
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my ($uname,$udom)=@_; |
| |
if (($perlvar{'lonRole'} eq 'library') && |
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($udom eq $perlvar{'lonDefDomain'})) { |
| |
my $answer=reply("encrypt:currentauth:$udom:$uname", |
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$perlvar{'lonHostID'}); |
| |
unless ($answer eq 'unknown_user' or $answer eq 'refused') { |
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if (length($answer)) { |
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return $answer; |
| |
} |
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else { |
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&logthis("User $uname at $udom lacks an authentication mechanism"); |
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return 'no_host'; |
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} |
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} |
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} |
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|
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my $tryserver; |
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foreach $tryserver (keys %libserv) { |
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if ($hostdom{$tryserver} eq $udom) { |
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my $answer=reply("encrypt:currentauth:$udom:$uname",$tryserver); |
| |
unless ($answer eq 'unknown_user' or $answer eq 'refused') { |
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if (length($answer)) { |
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return $answer; |
| |
} |
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else { |
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&logthis("User $uname at $udom lacks an authentication mechanism"); |
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return 'no_host'; |
| |
} |
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} |
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} |
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} |
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&logthis("User $uname at $udom lacks an authentication mechanism"); |
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return 'no_host'; |
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} |
| |
|
| # --------- Try to authenticate user from domain's lib servers (first this one) |
# --------- Try to authenticate user from domain's lib servers (first this one) |
| |
|
| sub authenticate { |
sub authenticate { |
| my ($uname,$upass,$udom)=@_; |
my ($uname,$upass,$udom)=@_; |
| |
$upass=escape($upass); |
| if (($perlvar{'lonRole'} eq 'library') && |
if (($perlvar{'lonRole'} eq 'library') && |
| ($udom eq $perlvar{'lonDefDomain'})) { |
($udom eq $perlvar{'lonDefDomain'})) { |
| my $answer=reply("enc:auth:$udom:$uname:$upass",$perlvar{'lonHostID'}); |
my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'}); |
| if ($answer =~ /authorized/) { |
if ($answer =~ /authorized/) { |
| if ($answer eq 'authorized') { return $perlvar{'lonHostID'}; } |
if ($answer eq 'authorized') { |
| if ($answer eq 'non_authorized') { return 'no_host'; } |
&logthis("User $uname at $udom authorized by local server"); |
| |
return $perlvar{'lonHostID'}; |
| |
} |
| |
if ($answer eq 'non_authorized') { |
| |
&logthis("User $uname at $udom rejected by local server"); |
| |
return 'no_host'; |
| |
} |
| } |
} |
| } |
} |
| |
|
| my $tryserver; |
my $tryserver; |
| foreach $tryserver (keys %libserv) { |
foreach $tryserver (keys %libserv) { |
| if ($hostdom{$tryserver} eq $udom) { |
if ($hostdom{$tryserver} eq $udom) { |
| my $answer=reply("enc:auth:$udom:$uname:$upass",$tryserver); |
my $answer=reply("encrypt:auth:$udom:$uname:$upass",$tryserver); |
| if ($answer =~ /authorized/) { |
if ($answer =~ /authorized/) { |
| if ($answer eq 'authorized') { return $tryserver; } |
if ($answer eq 'authorized') { |
| |
&logthis("User $uname at $udom authorized by $tryserver"); |
| |
return $tryserver; |
| |
} |
| |
if ($answer eq 'non_authorized') { |
| |
&logthis("User $uname at $udom rejected by $tryserver"); |
| |
return 'no_host'; |
| |
} |
| } |
} |
| } |
} |
| } |
} |
| |
&logthis("User $uname at $udom could not be authenticated"); |
| return 'no_host'; |
return 'no_host'; |
| } |
} |
| |
|
| # ---------------------- Find the homebase for a user from domain's lib servers |
# ---------------------- Find the homebase for a user from domain's lib servers |
| |
|
| sub homeserver { |
sub homeserver { |
| my ($uname,$udom)=@_; |
my ($uname,$udom)=@_; |
| |
|
|
Line 210 sub homeserver {
|
Line 447 sub homeserver {
|
| return 'no_host'; |
return 'no_host'; |
| } |
} |
| |
|
| |
# ------------------------------------- Find the usernames behind a list of IDs |
| |
|
| |
sub idget { |
| |
my ($udom,@ids)=@_; |
| |
my %returnhash=(); |
| |
|
| |
my $tryserver; |
| |
foreach $tryserver (keys %libserv) { |
| |
if ($hostdom{$tryserver} eq $udom) { |
| |
my $idlist=join('&',@ids); |
| |
$idlist=~tr/A-Z/a-z/; |
| |
my $reply=&reply("idget:$udom:".$idlist,$tryserver); |
| |
my @answer=(); |
| |
if (($reply ne 'con_lost') && ($reply!~/^error\:/)) { |
| |
@answer=split(/\&/,$reply); |
| |
} ; |
| |
my $i; |
| |
for ($i=0;$i<=$#ids;$i++) { |
| |
if ($answer[$i]) { |
| |
$returnhash{$ids[$i]}=$answer[$i]; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# ------------------------------------- Find the IDs behind a list of usernames |
| |
|
| |
sub idrget { |
| |
my ($udom,@unames)=@_; |
| |
my %returnhash=(); |
| |
foreach (@unames) { |
| |
$returnhash{$_}=(&userenvironment($udom,$_,'id'))[1]; |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# ------------------------------- Store away a list of names and associated IDs |
| |
|
| |
sub idput { |
| |
my ($udom,%ids)=@_; |
| |
my %servers=(); |
| |
foreach (keys %ids) { |
| |
my $uhom=&homeserver($_,$udom); |
| |
if ($uhom ne 'no_host') { |
| |
my $id=&escape($ids{$_}); |
| |
$id=~tr/A-Z/a-z/; |
| |
my $unam=&escape($_); |
| |
if ($servers{$uhom}) { |
| |
$servers{$uhom}.='&'.$id.'='.$unam; |
| |
} else { |
| |
$servers{$uhom}=$id.'='.$unam; |
| |
} |
| |
&critical('put:'.$udom.':'.$unam.':environment:id='.$id,$uhom); |
| |
} |
| |
} |
| |
foreach (keys %servers) { |
| |
&critical('idput:'.$udom.':'.$servers{$_},$_); |
| |
} |
| |
} |
| |
|
| |
# ------------------------------------- Find the section of student in a course |
| |
|
| |
sub usection { |
| |
my ($udom,$unam,$courseid)=@_; |
| |
$courseid=~s/\_/\//g; |
| |
$courseid=~s/^(\w)/\/$1/; |
| |
foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles', |
| |
&homeserver($unam,$udom)))) { |
| |
my ($key,$value)=split(/\=/,$_); |
| |
$key=&unescape($key); |
| |
if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) { |
| |
my $section=$1; |
| |
if ($key eq $courseid.'_st') { $section=''; } |
| |
my ($dummy,$end,$start)=split(/\_/,&unescape($value)); |
| |
my $now=time; |
| |
my $notactive=0; |
| |
if ($start) { |
| |
if ($now<$start) { $notactive=1; } |
| |
} |
| |
if ($end) { |
| |
if ($now>$end) { $notactive=1; } |
| |
} |
| |
unless ($notactive) { return $section; } |
| |
} |
| |
} |
| |
return '-1'; |
| |
} |
| |
|
| |
# ------------------------------------- Read an entry from a user's environment |
| |
|
| |
sub userenvironment { |
| |
my ($udom,$unam,@what)=@_; |
| |
my %returnhash=(); |
| |
my @answer=split(/\&/, |
| |
&reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what), |
| |
&homeserver($unam,$udom))); |
| |
my $i; |
| |
for ($i=0;$i<=$#what;$i++) { |
| |
$returnhash{$what[$i]}=&unescape($answer[$i]); |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| # ----------------------------- Subscribe to a resource, return URL if possible |
# ----------------------------- Subscribe to a resource, return URL if possible |
| |
|
| sub subscribe { |
sub subscribe { |
| my $fname=shift; |
my $fname=shift; |
| &logthis($fname); |
|
| my $author=$fname; |
my $author=$fname; |
| $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; |
$author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/; |
| my ($udom,$uname)=split(/\//,$author); |
my ($udom,$uname)=split(/\//,$author); |
| my $home=homeserver($uname,$udom); |
my $home=homeserver($uname,$udom); |
| &logthis("$home $udom $uname"); |
|
| if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) { |
if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) { |
| return 'not_found'; |
return 'not_found'; |
| } |
} |
| my $answer=reply("sub:$fname",$home); |
my $answer=reply("sub:$fname",$home); |
| |
if (($answer eq 'con_lost') || ($answer eq 'rejected')) { |
| |
$answer.=' by '.$home; |
| |
} |
| return $answer; |
return $answer; |
| } |
} |
| |
|
| |
# -------------------------------------------------------------- Replicate file |
| |
|
| |
sub repcopy { |
| |
my $filename=shift; |
| |
$filename=~s/\/+/\//g; |
| |
my $transname="$filename.in.transfer"; |
| |
if ((-e $filename) || (-e $transname)) { return OK; } |
| |
my $remoteurl=subscribe($filename); |
| |
if ($remoteurl =~ /^con_lost by/) { |
| |
&logthis("Subscribe returned $remoteurl: $filename"); |
| |
return HTTP_SERVICE_UNAVAILABLE; |
| |
} elsif ($remoteurl eq 'not_found') { |
| |
&logthis("Subscribe returned not_found: $filename"); |
| |
return HTTP_NOT_FOUND; |
| |
} elsif ($remoteurl =~ /^rejected by/) { |
| |
&logthis("Subscribe returned $remoteurl: $filename"); |
| |
return FORBIDDEN; |
| |
} elsif ($remoteurl eq 'directory') { |
| |
return OK; |
| |
} else { |
| |
my @parts=split(/\//,$filename); |
| |
my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]"; |
| |
if ($path ne "$perlvar{'lonDocRoot'}/res") { |
| |
&logthis("Malconfiguration for replication: $filename"); |
| |
return HTTP_BAD_REQUEST; |
| |
} |
| |
my $count; |
| |
for ($count=5;$count<$#parts;$count++) { |
| |
$path.="/$parts[$count]"; |
| |
if ((-e $path)!=1) { |
| |
mkdir($path,0777); |
| |
} |
| |
} |
| |
my $ua=new LWP::UserAgent; |
| |
my $request=new HTTP::Request('GET',"$remoteurl"); |
| |
my $response=$ua->request($request,$transname); |
| |
if ($response->is_error()) { |
| |
unlink($transname); |
| |
my $message=$response->status_line; |
| |
&logthis("<font color=blue>WARNING:" |
| |
." LWP get: $message: $filename</font>"); |
| |
return HTTP_SERVICE_UNAVAILABLE; |
| |
} else { |
| |
if ($remoteurl!~/\.meta$/) { |
| |
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta'); |
| |
my $mresponse=$ua->request($mrequest,$filename.'.meta'); |
| |
if ($mresponse->is_error()) { |
| |
unlink($filename.'.meta'); |
| |
&logthis( |
| |
"<font color=yellow>INFO: No metadata: $filename</font>"); |
| |
} |
| |
} |
| |
rename($transname,$filename); |
| |
return OK; |
| |
} |
| |
} |
| |
} |
| |
|
| |
# --------------------------------------------------------- Server Side Include |
| |
|
| |
sub ssi { |
| |
|
| |
my ($fn,%form)=@_; |
| |
|
| |
my $ua=new LWP::UserAgent; |
| |
|
| |
my $request; |
| |
|
| |
if (%form) { |
| |
$request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn); |
| |
$request->content(join '&', map { "$_=$form{$_}" } keys %form); |
| |
} else { |
| |
$request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn); |
| |
} |
| |
|
| |
$request->header(Cookie => $ENV{'HTTP_COOKIE'}); |
| |
my $response=$ua->request($request); |
| |
|
| |
return $response->content; |
| |
} |
| |
|
| |
# ------------------------------------------------------------------------- Log |
| |
|
| |
sub log { |
| |
my ($dom,$nam,$hom,$what)=@_; |
| |
return critical("log:$dom:$nam:$what",$hom); |
| |
} |
| |
|
| |
# ------------------------------------------------------------------ Course Log |
| |
|
| |
sub flushcourselogs { |
| |
&logthis('Flushing course log buffers'); |
| |
foreach (keys %courselogs) { |
| |
my $crsid=$_; |
| |
if (&reply('log:'.$coursedombuf{$crsid}.':'. |
| |
&escape($courselogs{$crsid}), |
| |
$coursehombuf{$crsid}) eq 'ok') { |
| |
delete $courselogs{$crsid}; |
| |
} else { |
| |
&logthis('Failed to flush log buffer for '.$crsid); |
| |
if (length($courselogs{$crsid})>40000) { |
| |
&logthis("<font color=blue>WARNING: Buffer for ".$crsid. |
| |
" exceeded maximum size, deleting.</font>"); |
| |
delete $courselogs{$crsid}; |
| |
} |
| |
} |
| |
} |
| |
&logthis('Flushing access logs'); |
| |
foreach (keys %accesshash) { |
| |
my $entry=$_; |
| |
$entry=~/\_\_\_(\w+)\/(\w+)\/(.*)\_\_\_(\w+)$/; |
| |
my %temphash=($entry => $accesshash{$entry}); |
| |
if (&Apache::lonnet::put('resevaldata',\%temphash,$1,$2) eq 'ok') { |
| |
delete $accesshash{$entry}; |
| |
} |
| |
} |
| |
$dumpcount++; |
| |
} |
| |
|
| |
sub courselog { |
| |
my $what=shift; |
| |
$what=time.':'.$what; |
| |
unless ($ENV{'request.course.id'}) { return ''; } |
| |
$coursedombuf{$ENV{'request.course.id'}}= |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.num'}; |
| |
$coursehombuf{$ENV{'request.course.id'}}= |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; |
| |
if (defined $courselogs{$ENV{'request.course.id'}}) { |
| |
$courselogs{$ENV{'request.course.id'}}.='&'.$what; |
| |
} else { |
| |
$courselogs{$ENV{'request.course.id'}}.=$what; |
| |
} |
| |
if (length($courselogs{$ENV{'request.course.id'}})>4048) { |
| |
&flushcourselogs(); |
| |
} |
| |
} |
| |
|
| |
sub courseacclog { |
| |
my $fnsymb=shift; |
| |
unless ($ENV{'request.course.id'}) { return ''; } |
| |
my $what=$fnsymb.':'.$ENV{'user.name'}.':'.$ENV{'user.domain'}; |
| |
if ($fnsymb=~/(problem|exam|quiz|assess|survey|form)$/) { |
| |
$what.=':POST'; |
| |
foreach (keys %ENV) { |
| |
if ($_=~/^form\.(.*)/) { |
| |
$what.=':'.$1.'='.$ENV{$_}; |
| |
} |
| |
} |
| |
} |
| |
&courselog($what); |
| |
} |
| |
|
| |
sub countacc { |
| |
my $url=&declutter(shift); |
| |
unless ($ENV{'request.course.id'}) { return ''; } |
| |
$accesshash{$ENV{'request.course.id'}.'___'.$url.'___course'}=1; |
| |
my $key=$processmarker.'_'.$dumpcount.'___'.$url.'___count'; |
| |
if (defined($accesshash{$key})) { |
| |
$accesshash{$key}++; |
| |
} else { |
| |
$accesshash{$key}=1; |
| |
} |
| |
} |
| |
|
| |
# ----------------------------------------------------------- Check out an item |
| |
|
| |
sub checkout { |
| |
my ($symb,$tuname,$tudom,$tcrsid)=@_; |
| |
my $now=time; |
| |
my $lonhost=$perlvar{'lonHostID'}; |
| |
my $infostr=&escape( |
| |
$tuname.'&'. |
| |
$tudom.'&'. |
| |
$tcrsid.'&'. |
| |
$symb.'&'. |
| |
$now.'&'.$ENV{'REMOTE_ADDR'}); |
| |
my $token=&reply('tmpput:'.$infostr,$lonhost); |
| |
if ($token=~/^error\:/) { |
| |
&logthis("<font color=blue>WARNING: ". |
| |
"Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb. |
| |
"</font>"); |
| |
return ''; |
| |
} |
| |
|
| |
$token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/; |
| |
$token=~tr/a-z/A-Z/; |
| |
|
| |
my %infohash=('resource.0.outtoken' => $token, |
| |
'resource.0.checkouttime' => $now, |
| |
'resource.0.outremote' => $ENV{'REMOTE_ADDR'}); |
| |
|
| |
unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') { |
| |
return ''; |
| |
} else { |
| |
&logthis("<font color=blue>WARNING: ". |
| |
"Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb. |
| |
"</font>"); |
| |
} |
| |
|
| |
if (&log($tudom,$tuname,&homeserver($tuname,$tudom), |
| |
&escape('Checkout '.$infostr.' - '. |
| |
$token)) ne 'ok') { |
| |
return ''; |
| |
} else { |
| |
&logthis("<font color=blue>WARNING: ". |
| |
"Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb. |
| |
"</font>"); |
| |
} |
| |
return $token; |
| |
} |
| |
|
| |
# ------------------------------------------------------------ Check in an item |
| |
|
| |
sub checkin { |
| |
my $token=shift; |
| |
my $now=time; |
| |
my ($ta,$tb,$lonhost)=split(/\*/,$token); |
| |
$lonhost=~tr/A-Z/a-z/; |
| |
my $dtoken=$ta.'_'.$hostip{$lonhost}.'_'.$tb; |
| |
$dtoken=~s/\W/\_/g; |
| |
my ($tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)= |
| |
split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost))); |
| |
|
| |
unless (($tuname) && ($tudom)) { |
| |
&logthis('Check in '.$token.' ('.$dtoken.') failed'); |
| |
return ''; |
| |
} |
| |
|
| |
unless (&allowed('mgr',$tcrsid)) { |
| |
&logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '. |
| |
$ENV{'user.name'}.' - '.$ENV{'user.domain'}); |
| |
return ''; |
| |
} |
| |
|
| |
my %infohash=('resource.0.intoken' => $token, |
| |
'resource.0.checkintime' => $now, |
| |
'resource.0.inremote' => $ENV{'REMOTE_ADDR'}); |
| |
|
| |
unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') { |
| |
return ''; |
| |
} |
| |
|
| |
if (&log($tudom,$tuname,&homeserver($tuname,$tudom), |
| |
&escape('Checkin - '.$token)) ne 'ok') { |
| |
return ''; |
| |
} |
| |
|
| |
return ($symb,$tuname,$tudom,$tcrsid); |
| |
} |
| |
|
| |
# --------------------------------------------- Set Expire Date for Spreadsheet |
| |
|
| |
sub expirespread { |
| |
my ($uname,$udom,$stype,$usymb)=@_; |
| |
my $cid=$ENV{'request.course.id'}; |
| |
if ($cid) { |
| |
my $now=time; |
| |
my $key=$uname.':'.$udom.':'.$stype.':'.$usymb; |
| |
return &reply('put:'.$ENV{'course.'.$cid.'.domain'}.':'. |
| |
$ENV{'course.'.$cid.'.num'}. |
| |
':nohist_expirationdates:'. |
| |
&escape($key).'='.$now, |
| |
$ENV{'course.'.$cid.'.home'}) |
| |
} |
| |
return 'ok'; |
| |
} |
| |
|
| |
# ----------------------------------------------------- Devalidate Spreadsheets |
| |
|
| |
sub devalidate { |
| |
my $symb=shift; |
| |
my $cid=$ENV{'request.course.id'}; |
| |
if ($cid) { |
| |
my $key=$ENV{'user.name'}.':'.$ENV{'user.domain'}.':'; |
| |
my $status= |
| |
&del('nohist_calculatedsheet', |
| |
[$key.'studentcalc'], |
| |
$ENV{'course.'.$cid.'.domain'}, |
| |
$ENV{'course.'.$cid.'.num'}) |
| |
.' '. |
| |
&del('nohist_calculatedsheets_'.$cid, |
| |
[$key.'assesscalc:'.$symb]); |
| |
unless ($status eq 'ok ok') { |
| |
&logthis('Could not devalidate spreadsheet '. |
| |
$ENV{'user.name'}.' at '.$ENV{'user.domain'}.' for '. |
| |
$symb.': '.$status); |
| |
} |
| |
} |
| |
} |
| |
|
| |
sub hash2str { |
| |
my (%hash)=@_; |
| |
my $result=''; |
| |
foreach (keys %hash) { $result.=escape($_).'='.escape($hash{$_}).'&'; } |
| |
$result=~s/\&$//; |
| |
return $result; |
| |
} |
| |
|
| |
sub str2hash { |
| |
my ($string) = @_; |
| |
my %returnhash; |
| |
foreach (split(/\&/,$string)) { |
| |
my ($name,$value)=split(/\=/,$_); |
| |
$returnhash{&unescape($name)}=&unescape($value); |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# -------------------------------------------------------------------Temp Store |
| |
|
| |
sub tmpreset { |
| |
my ($symb,$namespace,$domain,$stuname) = @_; |
| |
if (!$symb) { |
| |
$symb=&symbread(); |
| |
if (!$symb) { $symb= $ENV{'REQUEST_URI'}; } |
| |
} |
| |
$symb=escape($symb); |
| |
|
| |
if (!$namespace) { $namespace=$ENV{'request.state'}; } |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
|
| |
#FIXME needs to do something for /pub resources |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
my $path=$perlvar{'lonDaemons'}.'/tmp'; |
| |
my %hash; |
| |
if (tie(%hash,'GDBM_File', |
| |
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', |
| |
&GDBM_WRCREAT,0640)) { |
| |
foreach my $key (keys %hash) { |
| |
if ($key=~ /:$symb/) { |
| |
delete($hash{$key}); |
| |
} |
| |
} |
| |
} |
| |
} |
| |
|
| |
sub tmpstore { |
| |
my ($storehash,$symb,$namespace,$domain,$stuname) = @_; |
| |
|
| |
if (!$symb) { |
| |
$symb=&symbread(); |
| |
if (!$symb) { $symb= $ENV{'request.url'}; } |
| |
} |
| |
$symb=escape($symb); |
| |
|
| |
if (!$namespace) { |
| |
# I don't think we would ever want to store this for a course. |
| |
# it seems this will only be used if we don't have a course. |
| |
#$namespace=$ENV{'request.course.id'}; |
| |
#if (!$namespace) { |
| |
$namespace=$ENV{'request.state'}; |
| |
#} |
| |
} |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
#FIXME needs to do something for /pub resources |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
my $now=time; |
| |
my %hash; |
| |
my $path=$perlvar{'lonDaemons'}.'/tmp'; |
| |
if (tie(%hash,'GDBM_File', |
| |
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', |
| |
&GDBM_WRCREAT,0640)) { |
| |
$hash{"version:$symb"}++; |
| |
my $version=$hash{"version:$symb"}; |
| |
my $allkeys=''; |
| |
foreach my $key (keys(%$storehash)) { |
| |
$allkeys.=$key.':'; |
| |
$hash{"$version:$symb:$key"}=$$storehash{$key}; |
| |
} |
| |
$hash{"$version:$symb:timestamp"}=$now; |
| |
$allkeys.='timestamp'; |
| |
$hash{"$version:keys:$symb"}=$allkeys; |
| |
if (untie(%hash)) { |
| |
return 'ok'; |
| |
} else { |
| |
return "error:$!"; |
| |
} |
| |
} else { |
| |
return "error:$!"; |
| |
} |
| |
} |
| |
|
| |
# -----------------------------------------------------------------Temp Restore |
| |
|
| |
sub tmprestore { |
| |
my ($symb,$namespace,$domain,$stuname) = @_; |
| |
|
| |
if (!$symb) { |
| |
$symb=&symbread(); |
| |
if (!$symb) { $symb= $ENV{'request.url'}; } |
| |
} |
| |
$symb=escape($symb); |
| |
|
| |
if (!$namespace) { $namespace=$ENV{'request.state'}; } |
| |
#FIXME needs to do something for /pub resources |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
|
| |
my %returnhash; |
| |
$namespace=~s/\//\_/g; |
| |
$namespace=~s/\W//g; |
| |
my %hash; |
| |
my $path=$perlvar{'lonDaemons'}.'/tmp'; |
| |
if (tie(%hash,'GDBM_File', |
| |
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db', |
| |
&GDBM_READER,0640)) { |
| |
my $version=$hash{"version:$symb"}; |
| |
$returnhash{'version'}=$version; |
| |
my $scope; |
| |
for ($scope=1;$scope<=$version;$scope++) { |
| |
my $vkeys=$hash{"$scope:keys:$symb"}; |
| |
my @keys=split(/:/,$vkeys); |
| |
my $key; |
| |
$returnhash{"$scope:keys"}=$vkeys; |
| |
foreach $key (@keys) { |
| |
$returnhash{"$scope:$key"}=$hash{"$scope:$symb:$key"}; |
| |
$returnhash{"$key"}=$hash{"$scope:$symb:$key"}; |
| |
} |
| |
} |
| |
if (!(untie(%hash))) { |
| |
return "error:$!"; |
| |
} |
| |
} else { |
| |
return "error:$!"; |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# ----------------------------------------------------------------------- Store |
| |
|
| |
sub store { |
| |
my ($storehash,$symb,$namespace,$domain,$stuname) = @_; |
| |
my $home=''; |
| |
|
| |
if ($stuname) { $home=&homeserver($stuname,$domain); } |
| |
|
| |
if (!$symb) { unless ($symb=&symbread()) { return ''; } } |
| |
|
| |
&devalidate($symb); |
| |
|
| |
$symb=escape($symb); |
| |
if (!$namespace) { |
| |
unless ($namespace=$ENV{'request.course.id'}) { |
| |
return ''; |
| |
} |
| |
} |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
if (!$home) { $home=$ENV{'user.home'}; } |
| |
my $namevalue=''; |
| |
foreach (keys %$storehash) { |
| |
$namevalue.=escape($_).'='.escape($$storehash{$_}).'&'; |
| |
} |
| |
$namevalue=~s/\&$//; |
| |
&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue); |
| |
return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home"); |
| |
} |
| |
|
| |
# -------------------------------------------------------------- Critical Store |
| |
|
| |
sub cstore { |
| |
my ($storehash,$symb,$namespace,$domain,$stuname) = @_; |
| |
my $home=''; |
| |
|
| |
if ($stuname) { $home=&homeserver($stuname,$domain); } |
| |
|
| |
if (!$symb) { unless ($symb=&symbread()) { return ''; } } |
| |
|
| |
&devalidate($symb); |
| |
|
| |
$symb=escape($symb); |
| |
if (!$namespace) { |
| |
unless ($namespace=$ENV{'request.course.id'}) { |
| |
return ''; |
| |
} |
| |
} |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
if (!$home) { $home=$ENV{'user.home'}; } |
| |
|
| |
my $namevalue=''; |
| |
foreach (keys %$storehash) { |
| |
$namevalue.=escape($_).'='.escape($$storehash{$_}).'&'; |
| |
} |
| |
$namevalue=~s/\&$//; |
| |
&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue); |
| |
return critical |
| |
("store:$domain:$stuname:$namespace:$symb:$namevalue","$home"); |
| |
} |
| |
|
| |
# --------------------------------------------------------------------- Restore |
| |
|
| |
sub restore { |
| |
my ($symb,$namespace,$domain,$stuname) = @_; |
| |
my $home=''; |
| |
|
| |
if ($stuname) { $home=&homeserver($stuname,$domain); } |
| |
|
| |
if (!$symb) { |
| |
unless ($symb=escape(&symbread())) { return ''; } |
| |
} else { |
| |
$symb=&escape($symb); |
| |
} |
| |
if (!$namespace) { |
| |
unless ($namespace=$ENV{'request.course.id'}) { |
| |
return ''; |
| |
} |
| |
} |
| |
if (!$domain) { $domain=$ENV{'user.domain'}; } |
| |
if (!$stuname) { $stuname=$ENV{'user.name'}; } |
| |
if (!$home) { $home=$ENV{'user.home'}; } |
| |
my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home"); |
| |
|
| |
my %returnhash=(); |
| |
foreach (split(/\&/,$answer)) { |
| |
my ($name,$value)=split(/\=/,$_); |
| |
$returnhash{&unescape($name)}=&unescape($value); |
| |
} |
| |
my $version; |
| |
for ($version=1;$version<=$returnhash{'version'};$version++) { |
| |
foreach (split(/\:/,$returnhash{$version.':keys'})) { |
| |
$returnhash{$_}=$returnhash{$version.':'.$_}; |
| |
} |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Course Description |
| |
|
| |
sub coursedescription { |
| |
my $courseid=shift; |
| |
$courseid=~s/^\///; |
| |
$courseid=~s/\_/\//g; |
| |
my ($cdomain,$cnum)=split(/\//,$courseid); |
| |
my $chome=&homeserver($cnum,$cdomain); |
| |
if ($chome ne 'no_host') { |
| |
my %returnhash=&dump('environment',$cdomain,$cnum); |
| |
if (!exists($returnhash{'con_lost'})) { |
| |
my $normalid=$cdomain.'_'.$cnum; |
| |
my %envhash=(); |
| |
$returnhash{'home'}= $chome; |
| |
$returnhash{'domain'} = $cdomain; |
| |
$returnhash{'num'} = $cnum; |
| |
while (my ($name,$value) = each %returnhash) { |
| |
$envhash{'course.'.$normalid.'.'.$name}=$value; |
| |
} |
| |
$returnhash{'url'}='/res/'.declutter($returnhash{'url'}); |
| |
$returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. |
| |
$ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; |
| |
$envhash{'course.'.$normalid.'.last_cache'}=time; |
| |
$envhash{'course.'.$normalid.'.home'}=$chome; |
| |
$envhash{'course.'.$normalid.'.domain'}=$cdomain; |
| |
$envhash{'course.'.$normalid.'.num'}=$cnum; |
| |
&appenv(%envhash); |
| |
return %returnhash; |
| |
} |
| |
} |
| |
return (); |
| |
} |
| |
|
| |
# -------------------------------------------------------- Get user privileges |
| |
|
| |
sub rolesinit { |
| |
my ($domain,$username,$authhost)=@_; |
| |
my $rolesdump=reply("dump:$domain:$username:roles",$authhost); |
| |
if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; } |
| |
my %allroles=(); |
| |
my %thesepriv=(); |
| |
my $now=time; |
| |
my $userroles="user.login.time=$now\n"; |
| |
my $thesestr; |
| |
|
| |
if ($rolesdump ne '') { |
| |
foreach (split(/&/,$rolesdump)) { |
| |
if ($_!~/^rolesdef\&/) { |
| |
my ($area,$role)=split(/=/,$_); |
| |
$area=~s/\_\w\w$//; |
| |
my ($trole,$tend,$tstart)=split(/_/,$role); |
| |
$userroles.='user.role.'.$trole.'.'.$area.'='. |
| |
$tstart.'.'.$tend."\n"; |
| |
if ($tend!=0) { |
| |
if ($tend<$now) { |
| |
$trole=''; |
| |
} |
| |
} |
| |
if ($tstart!=0) { |
| |
if ($tstart>$now) { |
| |
$trole=''; |
| |
} |
| |
} |
| |
if (($area ne '') && ($trole ne '')) { |
| |
my $spec=$trole.'.'.$area; |
| |
my ($tdummy,$tdomain,$trest)=split(/\//,$area); |
| |
if ($trole =~ /^cr\//) { |
| |
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole); |
| |
my $homsvr=homeserver($rauthor,$rdomain); |
| |
if ($hostname{$homsvr} ne '') { |
| |
my $roledef= |
| |
reply("get:$rdomain:$rauthor:roles:rolesdef_$rrole", |
| |
$homsvr); |
| |
if (($roledef ne 'con_lost') && ($roledef ne '')) { |
| |
my ($syspriv,$dompriv,$coursepriv)= |
| |
split(/\_/,unescape($roledef)); |
| |
$allroles{'cm./'}.=':'.$syspriv; |
| |
$allroles{$spec.'./'}.=':'.$syspriv; |
| |
if ($tdomain ne '') { |
| |
$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv; |
| |
$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv; |
| |
if ($trest ne '') { |
| |
$allroles{'cm.'.$area}.=':'.$coursepriv; |
| |
$allroles{$spec.'.'.$area}.=':'.$coursepriv; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} else { |
| |
$allroles{'cm./'}.=':'.$pr{$trole.':s'}; |
| |
$allroles{$spec.'./'}.=':'.$pr{$trole.':s'}; |
| |
if ($tdomain ne '') { |
| |
$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; |
| |
$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'}; |
| |
if ($trest ne '') { |
| |
$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'}; |
| |
$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'}; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
my $adv=0; |
| |
my $author=0; |
| |
foreach (keys %allroles) { |
| |
%thesepriv=(); |
| |
if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; } |
| |
if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; } |
| |
foreach (split(/:/,$allroles{$_})) { |
| |
if ($_ ne '') { |
| |
my ($privilege,$restrictions)=split(/&/,$_); |
| |
if ($restrictions eq '') { |
| |
$thesepriv{$privilege}='F'; |
| |
} else { |
| |
if ($thesepriv{$privilege} ne 'F') { |
| |
$thesepriv{$privilege}.=$restrictions; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
$thesestr=''; |
| |
foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; } |
| |
$userroles.='user.priv.'.$_.'='.$thesestr."\n"; |
| |
} |
| |
$userroles.='user.adv='.$adv."\n". |
| |
'user.author='.$author."\n"; |
| |
$ENV{'user.adv'}=$adv; |
| |
} |
| |
return $userroles; |
| |
} |
| |
|
| |
# --------------------------------------------------------------- get interface |
| |
|
| |
sub get { |
| |
my ($namespace,$storearr,$udomain,$uname)=@_; |
| |
my $items=''; |
| |
foreach (@$storearr) { |
| |
$items.=escape($_).'&'; |
| |
} |
| |
$items=~s/\&$//; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
|
| |
my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome); |
| |
my @pairs=split(/\&/,$rep); |
| |
my %returnhash=(); |
| |
my $i=0; |
| |
foreach (@$storearr) { |
| |
$returnhash{$_}=unescape($pairs[$i]); |
| |
$i++; |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# --------------------------------------------------------------- del interface |
| |
|
| |
sub del { |
| |
my ($namespace,$storearr,$udomain,$uname)=@_; |
| |
my $items=''; |
| |
foreach (@$storearr) { |
| |
$items.=escape($_).'&'; |
| |
} |
| |
$items=~s/\&$//; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
|
| |
return &reply("del:$udomain:$uname:$namespace:$items",$uhome); |
| |
} |
| |
|
| |
# -------------------------------------------------------------- dump interface |
| |
|
| |
sub dump { |
| |
my ($namespace,$udomain,$uname,$regexp)=@_; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
if ($regexp) { |
| |
$regexp=&escape($regexp); |
| |
} else { |
| |
$regexp='.'; |
| |
} |
| |
my $rep=reply("dump:$udomain:$uname:$namespace:$regexp",$uhome); |
| |
my @pairs=split(/\&/,$rep); |
| |
my %returnhash=(); |
| |
foreach (@pairs) { |
| |
my ($key,$value)=split(/=/,$_); |
| |
$returnhash{unescape($key)}=unescape($value); |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# --------------------------------------------------------------- put interface |
| |
|
| |
sub put { |
| |
my ($namespace,$storehash,$udomain,$uname)=@_; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
my $items=''; |
| |
foreach (keys %$storehash) { |
| |
$items.=&escape($_).'='.&escape($$storehash{$_}).'&'; |
| |
} |
| |
$items=~s/\&$//; |
| |
return &reply("put:$udomain:$uname:$namespace:$items",$uhome); |
| |
} |
| |
|
| |
# ------------------------------------------------------ critical put interface |
| |
|
| |
sub cput { |
| |
my ($namespace,$storehash,$udomain,$uname)=@_; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
my $items=''; |
| |
foreach (keys %$storehash) { |
| |
$items.=escape($_).'='.escape($$storehash{$_}).'&'; |
| |
} |
| |
$items=~s/\&$//; |
| |
return &critical("put:$udomain:$uname:$namespace:$items",$uhome); |
| |
} |
| |
|
| |
# -------------------------------------------------------------- eget interface |
| |
|
| |
sub eget { |
| |
my ($namespace,$storearr,$udomain,$uname)=@_; |
| |
my $items=''; |
| |
foreach (@$storearr) { |
| |
$items.=escape($_).'&'; |
| |
} |
| |
$items=~s/\&$//; |
| |
if (!$udomain) { $udomain=$ENV{'user.domain'}; } |
| |
if (!$uname) { $uname=$ENV{'user.name'}; } |
| |
my $uhome=&homeserver($uname,$udomain); |
| |
my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome); |
| |
my @pairs=split(/\&/,$rep); |
| |
my %returnhash=(); |
| |
my $i=0; |
| |
foreach (@$storearr) { |
| |
$returnhash{$_}=unescape($pairs[$i]); |
| |
$i++; |
| |
} |
| |
return %returnhash; |
| |
} |
| |
|
| |
# ------------------------------------------------- Check for a user privilege |
| |
|
| |
sub allowed { |
| |
my ($priv,$uri)=@_; |
| |
|
| |
my $orguri=$uri; |
| |
$uri=&declutter($uri); |
| |
|
| |
# Free bre access to adm and meta resources |
| |
|
| |
if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) { |
| |
return 'F'; |
| |
} |
| |
|
| |
# Free bre to public access |
| |
|
| |
if ($priv eq 'bre') { |
| |
if (&metadata($uri,'copyright') eq 'public') { return 'F'; } |
| |
} |
| |
|
| |
my $thisallowed=''; |
| |
my $statecond=0; |
| |
my $courseprivid=''; |
| |
|
| |
# Course |
| |
|
| |
if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) { |
| |
$thisallowed.=$1; |
| |
} |
| |
|
| |
# Domain |
| |
|
| |
if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} |
| |
=~/$priv\&([^\:]*)/) { |
| |
$thisallowed.=$1; |
| |
} |
| |
|
| |
# Course: uri itself is a course |
| |
my $courseuri=$uri; |
| |
$courseuri=~s/\_(\d)/\/$1/; |
| |
$courseuri=~s/^([^\/])/\/$1/; |
| |
|
| |
if ($ENV{'user.priv.'.$ENV{'request.role'}.'.'.$courseuri} |
| |
=~/$priv\&([^\:]*)/) { |
| |
$thisallowed.=$1; |
| |
} |
| |
|
| |
# Full access at system, domain or course-wide level? Exit. |
| |
|
| |
if ($thisallowed=~/F/) { |
| |
return 'F'; |
| |
} |
| |
|
| |
# If this is generating or modifying users, exit with special codes |
| |
|
| |
if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:cca:'=~/\:$priv\:/) { |
| |
return $thisallowed; |
| |
} |
| |
# |
| |
# Gathered so far: system, domain and course wide privileges |
| |
# |
| |
# Course: See if uri or referer is an individual resource that is part of |
| |
# the course |
| |
|
| |
if ($ENV{'request.course.id'}) { |
| |
$courseprivid=$ENV{'request.course.id'}; |
| |
if ($ENV{'request.course.sec'}) { |
| |
$courseprivid.='/'.$ENV{'request.course.sec'}; |
| |
} |
| |
$courseprivid=~s/\_/\//; |
| |
my $checkreferer=1; |
| |
my @uriparts=split(/\//,$uri); |
| |
my $filename=$uriparts[$#uriparts]; |
| |
my $pathname=$uri; |
| |
$pathname=~s/\/$filename$//; |
| |
if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~ |
| |
/\&$filename\:([\d\|]+)\&/) { |
| |
$statecond=$1; |
| |
if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} |
| |
=~/$priv\&([^\:]*)/) { |
| |
$thisallowed.=$1; |
| |
$checkreferer=0; |
| |
} |
| |
} |
| |
|
| |
if ($checkreferer) { |
| |
my $refuri=$ENV{'httpref.'.$orguri}; |
| |
|
| |
unless ($refuri) { |
| |
foreach (keys %ENV) { |
| |
if ($_=~/^httpref\..*\*/) { |
| |
my $pattern=$_; |
| |
$pattern=~s/^httpref\.\/res\///; |
| |
$pattern=~s/\*/\[\^\/\]\+/g; |
| |
$pattern=~s/\//\\\//g; |
| |
if ($orguri=~/$pattern/) { |
| |
$refuri=$ENV{$_}; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if ($refuri) { |
| |
$refuri=&declutter($refuri); |
| |
my @uriparts=split(/\//,$refuri); |
| |
my $filename=$uriparts[$#uriparts]; |
| |
my $pathname=$refuri; |
| |
$pathname=~s/\/$filename$//; |
| |
if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~ |
| |
/\&$filename\:([\d\|]+)\&/) { |
| |
my $refstatecond=$1; |
| |
if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} |
| |
=~/$priv\&([^\:]*)/) { |
| |
$thisallowed.=$1; |
| |
$uri=$refuri; |
| |
$statecond=$refstatecond; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Gathered now: all privileges that could apply, and condition number |
| |
# |
| |
# |
| |
# Full or no access? |
| |
# |
| |
|
| |
if ($thisallowed=~/F/) { |
| |
return 'F'; |
| |
} |
| |
|
| |
unless ($thisallowed) { |
| |
return ''; |
| |
} |
| |
|
| |
# Restrictions exist, deal with them |
| |
# |
| |
# C:according to course preferences |
| |
# R:according to resource settings |
| |
# L:unless locked |
| |
# X:according to user session state |
| |
# |
| |
|
| |
# Possibly locked functionality, check all courses |
| |
# Locks might take effect only after 10 minutes cache expiration for other |
| |
# courses, and 2 minutes for current course |
| |
|
| |
my $envkey; |
| |
if ($thisallowed=~/L/) { |
| |
foreach $envkey (keys %ENV) { |
| |
if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) { |
| |
my $courseid=$2; |
| |
my $roleid=$1.'.'.$2; |
| |
$courseid=~s/^\///; |
| |
my $expiretime=600; |
| |
if ($ENV{'request.role'} eq $roleid) { |
| |
$expiretime=120; |
| |
} |
| |
my ($cdom,$cnum,$csec)=split(/\//,$courseid); |
| |
my $prefix='course.'.$cdom.'_'.$cnum.'.'; |
| |
if ((time-$ENV{$prefix.'last_cache'})>$expiretime) { |
| |
&coursedescription($courseid); |
| |
} |
| |
if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/) |
| |
|| ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { |
| |
if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) { |
| |
&log($ENV{'user.domain'},$ENV{'user.name'}, |
| |
$ENV{'user.host'}, |
| |
'Locked by res: '.$priv.' for '.$uri.' due to '. |
| |
$cdom.'/'.$cnum.'/'.$csec.' expire '. |
| |
$ENV{$prefix.'priv.'.$priv.'.lock.expire'}); |
| |
return ''; |
| |
} |
| |
} |
| |
if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/) |
| |
|| ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { |
| |
if ($ENV{'priv.'.$priv.'.lock.expire'}>time) { |
| |
&log($ENV{'user.domain'},$ENV{'user.name'}, |
| |
$ENV{'user.host'}, |
| |
'Locked by priv: '.$priv.' for '.$uri.' due to '. |
| |
$cdom.'/'.$cnum.'/'.$csec.' expire '. |
| |
$ENV{$prefix.'priv.'.$priv.'.lock.expire'}); |
| |
return ''; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
|
| |
# |
| |
# Rest of the restrictions depend on selected course |
| |
# |
| |
|
| |
unless ($ENV{'request.course.id'}) { |
| |
return '1'; |
| |
} |
| |
|
| |
# |
| |
# Now user is definitely in a course |
| |
# |
| |
|
| |
|
| |
# Course preferences |
| |
|
| |
if ($thisallowed=~/C/) { |
| |
my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; |
| |
if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'} |
| |
=~/$rolecode/) { |
| |
&log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'}, |
| |
'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. |
| |
$ENV{'request.course.id'}); |
| |
return ''; |
| |
} |
| |
} |
| |
|
| |
# Resource preferences |
| |
|
| |
if ($thisallowed=~/R/) { |
| |
my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; |
| |
my $filename=$perlvar{'lonDocRoot'}.'/res/'.$uri.'.meta'; |
| |
if (-e $filename) { |
| |
my @content; |
| |
{ |
| |
my $fh=Apache::File->new($filename); |
| |
@content=<$fh>; |
| |
} |
| |
if (join('',@content)=~ |
| |
/\<roledeny[^\>]*\>[^\<]*$rolecode[^\<]*\<\/roledeny\>/) { |
| |
&log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'}, |
| |
'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); |
| |
return ''; |
| |
|
| |
} |
| |
} |
| |
} |
| |
|
| |
# Restricted by state? |
| |
|
| |
if ($thisallowed=~/X/) { |
| |
if (&condval($statecond)) { |
| |
return '2'; |
| |
} else { |
| |
return ''; |
| |
} |
| |
} |
| |
|
| |
return 'F'; |
| |
} |
| |
|
| |
# ----------------------------------------------------------------- Define Role |
| |
|
| |
sub definerole { |
| |
if (allowed('mcr','/')) { |
| |
my ($rolename,$sysrole,$domrole,$courole)=@_; |
| |
foreach (split('/',$sysrole)) { |
| |
my ($crole,$cqual)=split(/\&/,$_); |
| |
if ($pr{'cr:s'}!~/$crole/) { return "refused:s:$crole"; } |
| |
if ($pr{'cr:s'}=~/$crole\&/) { |
| |
if ($pr{'cr:s'}!~/$crole\&\w*$cqual/) { |
| |
return "refused:s:$crole&$cqual"; |
| |
} |
| |
} |
| |
} |
| |
foreach (split('/',$domrole)) { |
| |
my ($crole,$cqual)=split(/\&/,$_); |
| |
if ($pr{'cr:d'}!~/$crole/) { return "refused:d:$crole"; } |
| |
if ($pr{'cr:d'}=~/$crole\&/) { |
| |
if ($pr{'cr:d'}!~/$crole\&\w*$cqual/) { |
| |
return "refused:d:$crole&$cqual"; |
| |
} |
| |
} |
| |
} |
| |
foreach (split('/',$courole)) { |
| |
my ($crole,$cqual)=split(/\&/,$_); |
| |
if ($pr{'cr:c'}!~/$crole/) { return "refused:c:$crole"; } |
| |
if ($pr{'cr:c'}=~/$crole\&/) { |
| |
if ($pr{'cr:c'}!~/$crole\&\w*$cqual/) { |
| |
return "refused:c:$crole&$cqual"; |
| |
} |
| |
} |
| |
} |
| |
my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:". |
| |
"$ENV{'user.domain'}:$ENV{'user.name'}:". |
| |
"rolesdef_$rolename=". |
| |
escape($sysrole.'_'.$domrole.'_'.$courole); |
| |
return reply($command,$ENV{'user.home'}); |
| |
} else { |
| |
return 'refused'; |
| |
} |
| |
} |
| |
|
| |
# ---------------- Make a metadata query against the network of library servers |
| |
|
| |
sub metadata_query { |
| |
my ($query,$custom,$customshow)=@_; |
| |
my %rhash; |
| |
for my $server (keys %libserv) { |
| |
unless ($custom or $customshow) { |
| |
my $reply=&reply("querysend:".&escape($query),$server); |
| |
$rhash{$server}=$reply; |
| |
} |
| |
else { |
| |
my $reply=&reply("querysend:".&escape($query).':'. |
| |
&escape($custom).':'.&escape($customshow), |
| |
$server); |
| |
$rhash{$server}=$reply; |
| |
} |
| |
} |
| |
return \%rhash; |
| |
} |
| |
|
| |
# ------------------------------------------------------------------ Plain Text |
| |
|
| |
sub plaintext { |
| |
my $short=shift; |
| |
return $prp{$short}; |
| |
} |
| |
|
| |
# ----------------------------------------------------------------- Assign Role |
| |
|
| |
sub assignrole { |
| |
my ($udom,$uname,$url,$role,$end,$start)=@_; |
| |
my $mrole; |
| |
if ($role =~ /^cr\//) { |
| |
unless (&allowed('ccr',$url)) { |
| |
&logthis('Refused custom assignrole: '. |
| |
$udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. |
| |
$ENV{'user.name'}.' at '.$ENV{'user.domain'}); |
| |
return 'refused'; |
| |
} |
| |
$mrole='cr'; |
| |
} else { |
| |
my $cwosec=$url; |
| |
$cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/; |
| |
unless (&allowed('c'.$role,$cwosec)) { |
| |
&logthis('Refused assignrole: '. |
| |
$udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '. |
| |
$ENV{'user.name'}.' at '.$ENV{'user.domain'}); |
| |
return 'refused'; |
| |
} |
| |
$mrole=$role; |
| |
} |
| |
my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:". |
| |
"$udom:$uname:$url".'_'."$mrole=$role"; |
| |
if ($end) { $command.='_'.$end; } |
| |
if ($start) { |
| |
if ($end) { |
| |
$command.='_'.$start; |
| |
} else { |
| |
$command.='_0_'.$start; |
| |
} |
| |
} |
| |
return &reply($command,&homeserver($uname,$udom)); |
| |
} |
| |
|
| |
# -------------------------------------------------- Modify user authentication |
| |
# Overrides without validation |
| |
|
| |
sub modifyuserauth { |
| |
my ($udom,$uname,$umode,$upass)=@_; |
| |
my $uhome=&homeserver($uname,$udom); |
| |
unless (&allowed('mau',$udom)) { return 'refused'; } |
| |
&logthis('Call to modify user authentication '.$udom.', '.$uname.', '. |
| |
$umode.' by '.$ENV{'user.name'}.' at '.$ENV{'user.domain'}); |
| |
my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'. |
| |
&escape($upass),$uhome); |
| |
&log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.home'}, |
| |
'Authentication changed for '.$udom.', '.$uname.', '.$umode. |
| |
'(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); |
| |
&log($udom,,$uname,$uhome, |
| |
'Authentication changed by '.$ENV{'user.domain'}.', '. |
| |
$ENV{'user.name'}.', '.$umode. |
| |
'(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply); |
| |
unless ($reply eq 'ok') { |
| |
&logthis('Authentication mode error: '.$reply); |
| |
return 'error: '.$reply; |
| |
} |
| |
return 'ok'; |
| |
} |
| |
|
| |
# --------------------------------------------------------------- Modify a user |
| |
|
| |
|
| |
sub modifyuser { |
| |
my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene, |
| |
$forceid)=@_; |
| |
&logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '. |
| |
$umode.', '.$first.', '.$middle.', '. |
| |
$last.', '.$gene.'(forceid: '.$forceid.') by '. |
| |
$ENV{'user.name'}.' at '.$ENV{'user.domain'}); |
| |
my $uhome=&homeserver($uname,$udom); |
| |
# ----------------------------------------------------------------- Create User |
| |
if (($uhome eq 'no_host') && ($umode) && ($upass)) { |
| |
my $unhome=''; |
| |
if ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) { |
| |
$unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'}; |
| |
} else { |
| |
my $tryserver; |
| |
my $loadm=10000000; |
| |
foreach $tryserver (keys %libserv) { |
| |
if ($hostdom{$tryserver} eq $udom) { |
| |
my $answer=reply('load',$tryserver); |
| |
if (($answer=~/\d+/) && ($answer<$loadm)) { |
| |
$loadm=$answer; |
| |
$unhome=$tryserver; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
if (($unhome eq '') || ($unhome eq 'no_host')) { |
| |
return 'error: find home'; |
| |
} |
| |
my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'. |
| |
&escape($upass),$unhome); |
| |
unless ($reply eq 'ok') { |
| |
return 'error: '.$reply; |
| |
} |
| |
$uhome=&homeserver($uname,$udom); |
| |
if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) { |
| |
return 'error: verify home'; |
| |
} |
| |
} |
| |
# ---------------------------------------------------------------------- Add ID |
| |
if ($uid) { |
| |
$uid=~tr/A-Z/a-z/; |
| |
my %uidhash=&idrget($udom,$uname); |
| |
if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/) |
| |
&& (!$forceid)) { |
| |
unless ($uid eq $uidhash{$uname}) { |
| |
return 'error: mismatch '.$uidhash{$uname}.' versus '.$uid; |
| |
} |
| |
} else { |
| |
&idput($udom,($uname => $uid)); |
| |
} |
| |
} |
| |
# -------------------------------------------------------------- Add names, etc |
| |
my %names=&get('environment', |
| |
['firstname','middlename','lastname','generation'], |
| |
$udom,$uname); |
| |
if ($first) { $names{'firstname'} = $first; } |
| |
if ($middle) { $names{'middlename'} = $middle; } |
| |
if ($last) { $names{'lastname'} = $last; } |
| |
if ($gene) { $names{'generation'} = $gene; } |
| |
my $reply = &put('environment', \%names, $udom,$uname); |
| |
if ($reply ne 'ok') { return 'error: '.$reply; } |
| |
&logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '. |
| |
$umode.', '.$first.', '.$middle.', '. |
| |
$last.', '.$gene.' by '. |
| |
$ENV{'user.name'}.' at '.$ENV{'user.domain'}); |
| |
return 'ok'; |
| |
} |
| |
|
| |
# -------------------------------------------------------------- Modify student |
| |
|
| |
sub modifystudent { |
| |
my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec, |
| |
$end,$start,$forceid)=@_; |
| |
my $cid=''; |
| |
unless ($cid=$ENV{'request.course.id'}) { |
| |
return 'not_in_class'; |
| |
} |
| |
# --------------------------------------------------------------- Make the user |
| |
my $reply=&modifyuser |
| |
($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$forceid); |
| |
unless ($reply eq 'ok') { return $reply; } |
| |
my $uhome=&homeserver($uname,$udom); |
| |
if (($uhome eq '') || ($uhome eq 'no_host')) { |
| |
return 'error: no such user'; |
| |
} |
| |
# -------------------------------------------------- Add student to course list |
| |
$reply=critical('put:'.$ENV{'course.'.$cid.'.domain'}.':'. |
| |
$ENV{'course.'.$cid.'.num'}.':classlist:'. |
| |
&escape($uname.':'.$udom).'='. |
| |
&escape($end.':'.$start), |
| |
$ENV{'course.'.$cid.'.home'}); |
| |
unless (($reply eq 'ok') || ($reply eq 'delayed')) { |
| |
return 'error: '.$reply; |
| |
} |
| |
# ---------------------------------------------------- Add student role to user |
| |
my $uurl='/'.$cid; |
| |
$uurl=~s/\_/\//g; |
| |
if ($usec) { |
| |
$uurl.='/'.$usec; |
| |
} |
| |
return &assignrole($udom,$uname,$uurl,'st',$end,$start); |
| |
} |
| |
|
| |
# ------------------------------------------------- Write to course preferences |
| |
|
| |
sub writecoursepref { |
| |
my ($courseid,%prefs)=@_; |
| |
$courseid=~s/^\///; |
| |
$courseid=~s/\_/\//g; |
| |
my ($cdomain,$cnum)=split(/\//,$courseid); |
| |
my $chome=homeserver($cnum,$cdomain); |
| |
if (($chome eq '') || ($chome eq 'no_host')) { |
| |
return 'error: no such course'; |
| |
} |
| |
my $cstring=''; |
| |
foreach (keys %prefs) { |
| |
$cstring.=escape($_).'='.escape($prefs{$_}).'&'; |
| |
} |
| |
$cstring=~s/\&$//; |
| |
return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome); |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Make/modify course |
| |
|
| |
sub createcourse { |
| |
my ($udom,$description,$url)=@_; |
| |
$url=&declutter($url); |
| |
my $cid=''; |
| |
unless (&allowed('ccc',$ENV{'user.domain'})) { |
| |
return 'refused'; |
| |
} |
| |
unless ($udom eq $ENV{'user.domain'}) { |
| |
return 'refused'; |
| |
} |
| |
# ------------------------------------------------------------------- Create ID |
| |
my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)). |
| |
unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; |
| |
# ----------------------------------------------- Make sure that does not exist |
| |
my $uhome=&homeserver($uname,$udom); |
| |
unless (($uhome eq '') || ($uhome eq 'no_host')) { |
| |
$uname=substr($$.time,0,5).unpack("H8",pack("I32",time)). |
| |
unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'}; |
| |
$uhome=&homeserver($uname,$udom); |
| |
unless (($uhome eq '') || ($uhome eq 'no_host')) { |
| |
return 'error: unable to generate unique course-ID'; |
| |
} |
| |
} |
| |
# ------------------------------------------------------------- Make the course |
| |
my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::', |
| |
$ENV{'user.home'}); |
| |
unless ($reply eq 'ok') { return 'error: '.$reply; } |
| |
$uhome=&homeserver($uname,$udom); |
| |
if (($uhome eq '') || ($uhome eq 'no_host')) { |
| |
return 'error: no such course'; |
| |
} |
| |
&writecoursepref($udom.'_'.$uname, |
| |
('description' => $description, |
| |
'url' => $url)); |
| |
return '/'.$udom.'/'.$uname; |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Assign Custom Role |
| |
|
| |
sub assigncustomrole { |
| |
my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start)=@_; |
| |
return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename, |
| |
$end,$start); |
| |
} |
| |
|
| |
# ----------------------------------------------------------------- Revoke Role |
| |
|
| |
sub revokerole { |
| |
my ($udom,$uname,$url,$role)=@_; |
| |
my $now=time; |
| |
return &assignrole($udom,$uname,$url,$role,$now); |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Revoke Custom Role |
| |
|
| |
sub revokecustomrole { |
| |
my ($udom,$uname,$url,$rdom,$rnam,$rolename)=@_; |
| |
my $now=time; |
| |
return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now); |
| |
} |
| |
|
| |
# ------------------------------------------------------------ Directory lister |
| |
|
| |
sub dirlist { |
| |
my $uri=shift; |
| |
$uri=~s/^\///; |
| |
$uri=~s/\/$//; |
| |
my ($res,$udom,$uname,@rest)=split(/\//,$uri); |
| |
if ($udom) { |
| |
if ($uname) { |
| |
my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/'.$uri, |
| |
homeserver($uname,$udom)); |
| |
return split(/:/,$listing); |
| |
} else { |
| |
my $tryserver; |
| |
my %allusers=(); |
| |
foreach $tryserver (keys %libserv) { |
| |
if ($hostdom{$tryserver} eq $udom) { |
| |
my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.$udom, |
| |
$tryserver); |
| |
if (($listing ne 'no_such_dir') && ($listing ne 'empty') |
| |
&& ($listing ne 'con_lost')) { |
| |
foreach (split(/:/,$listing)) { |
| |
my ($entry,@stat)=split(/&/,$_); |
| |
$allusers{$entry}=1; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
my $alluserstr=''; |
| |
foreach (sort keys %allusers) { |
| |
$alluserstr.=$_.'&user:'; |
| |
} |
| |
$alluserstr=~s/:$//; |
| |
return split(/:/,$alluserstr); |
| |
} |
| |
} else { |
| |
my $tryserver; |
| |
my %alldom=(); |
| |
foreach $tryserver (keys %libserv) { |
| |
$alldom{$hostdom{$tryserver}}=1; |
| |
} |
| |
my $alldomstr=''; |
| |
foreach (sort keys %alldom) { |
| |
$alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:'; |
| |
} |
| |
$alldomstr=~s/:$//; |
| |
return split(/:/,$alldomstr); |
| |
} |
| |
} |
| |
|
| |
# -------------------------------------------------------- Value of a Condition |
| |
|
| |
sub directcondval { |
| |
my $number=shift; |
| |
if ($ENV{'user.state.'.$ENV{'request.course.id'}}) { |
| |
return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1); |
| |
} else { |
| |
return 2; |
| |
} |
| |
} |
| |
|
| |
sub condval { |
| |
my $condidx=shift; |
| |
my $result=0; |
| |
my $allpathcond=''; |
| |
foreach (split(/\|/,$condidx)) { |
| |
if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) { |
| |
$allpathcond.= |
| |
'('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|'; |
| |
} |
| |
} |
| |
$allpathcond=~s/\|$//; |
| |
if ($ENV{'request.course.id'}) { |
| |
if ($allpathcond) { |
| |
my $operand='|'; |
| |
my @stack; |
| |
foreach ($allpathcond=~/(\d+|\(|\)|\&|\|)/g) { |
| |
if ($_ eq '(') { |
| |
push @stack,($operand,$result) |
| |
} elsif ($_ eq ')') { |
| |
my $before=pop @stack; |
| |
if (pop @stack eq '&') { |
| |
$result=$result>$before?$before:$result; |
| |
} else { |
| |
$result=$result>$before?$result:$before; |
| |
} |
| |
} elsif (($_ eq '&') || ($_ eq '|')) { |
| |
$operand=$_; |
| |
} else { |
| |
my $new=directcondval($_); |
| |
if ($operand eq '&') { |
| |
$result=$result>$new?$new:$result; |
| |
} else { |
| |
$result=$result>$new?$result:$new; |
| |
} |
| |
} |
| |
} |
| |
} |
| |
} |
| |
return $result; |
| |
} |
| |
|
| |
# --------------------------------------------------------- Value of a Variable |
| |
|
| |
sub EXT { |
| |
my ($varname,$symbparm)=@_; |
| |
unless ($varname) { return ''; } |
| |
my ($realm,$space,$qualifier,@therest)=split(/\./,$varname); |
| |
my $rest; |
| |
if ($therest[0]) { |
| |
$rest=join('.',@therest); |
| |
} else { |
| |
$rest=''; |
| |
} |
| |
my $qualifierrest=$qualifier; |
| |
if ($rest) { $qualifierrest.='.'.$rest; } |
| |
my $spacequalifierrest=$space; |
| |
if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; } |
| |
if ($realm eq 'user') { |
| |
# --------------------------------------------------------------- user.resource |
| |
if ($space eq 'resource') { |
| |
my %restored=&restore(); |
| |
return $restored{$qualifierrest}; |
| |
# ----------------------------------------------------------------- user.access |
| |
} elsif ($space eq 'access') { |
| |
return &allowed($qualifier,$rest); |
| |
# ------------------------------------------ user.preferences, user.environment |
| |
} elsif (($space eq 'preferences') || ($space eq 'environment')) { |
| |
return $ENV{join('.',('environment',$qualifierrest))}; |
| |
# ----------------------------------------------------------------- user.course |
| |
} elsif ($space eq 'course') { |
| |
return $ENV{join('.',('request.course',$qualifier))}; |
| |
# ------------------------------------------------------------------- user.role |
| |
} elsif ($space eq 'role') { |
| |
my ($role,$where)=split(/\./,$ENV{'request.role'}); |
| |
if ($qualifier eq 'value') { |
| |
return $role; |
| |
} elsif ($qualifier eq 'extent') { |
| |
return $where; |
| |
} |
| |
# ----------------------------------------------------------------- user.domain |
| |
} elsif ($space eq 'domain') { |
| |
return $ENV{'user.domain'}; |
| |
# ------------------------------------------------------------------- user.name |
| |
} elsif ($space eq 'name') { |
| |
return $ENV{'user.name'}; |
| |
# ---------------------------------------------------- Any other user namespace |
| |
} else { |
| |
my $item=($rest)?$qualifier.'.'.$rest:$qualifier; |
| |
my %reply=&get($space,[$item]); |
| |
return $reply{$item}; |
| |
} |
| |
} elsif ($realm eq 'request') { |
| |
# ------------------------------------------------------------- request.browser |
| |
if ($space eq 'browser') { |
| |
return $ENV{'browser.'.$qualifier}; |
| |
# ------------------------------------------------------------ request.filename |
| |
} else { |
| |
return $ENV{'request.'.$spacequalifierrest}; |
| |
} |
| |
} elsif ($realm eq 'course') { |
| |
# ---------------------------------------------------------- course.description |
| |
return $ENV{'course.'.$ENV{'request.course.id'}.'.'. |
| |
$spacequalifierrest}; |
| |
} elsif ($realm eq 'resource') { |
| |
if ($ENV{'request.course.id'}) { |
| |
|
| |
# print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest; |
| |
|
| |
|
| |
# ----------------------------------------------------- Cascading lookup scheme |
| |
my $symbp; |
| |
if ($symbparm) { |
| |
$symbp=$symbparm; |
| |
} else { |
| |
$symbp=&symbread(); |
| |
} |
| |
my $mapp=(split(/\_\_\_/,$symbp))[0]; |
| |
|
| |
my $symbparm=$symbp.'.'.$spacequalifierrest; |
| |
my $mapparm=$mapp.'___(all).'.$spacequalifierrest; |
| |
|
| |
my $seclevel= |
| |
$ENV{'request.course.id'}.'.['. |
| |
$ENV{'request.course.sec'}.'].'.$spacequalifierrest; |
| |
my $seclevelr= |
| |
$ENV{'request.course.id'}.'.['. |
| |
$ENV{'request.course.sec'}.'].'.$symbparm; |
| |
my $seclevelm= |
| |
$ENV{'request.course.id'}.'.['. |
| |
$ENV{'request.course.sec'}.'].'.$mapparm; |
| |
|
| |
my $courselevel= |
| |
$ENV{'request.course.id'}.'.'.$spacequalifierrest; |
| |
my $courselevelr= |
| |
$ENV{'request.course.id'}.'.'.$symbparm; |
| |
my $courselevelm= |
| |
$ENV{'request.course.id'}.'.'.$mapparm; |
| |
|
| |
# ----------------------------------------------------------- first, check user |
| |
my %resourcedata=get('resourcedata', |
| |
[$courselevelr,$courselevelm,$courselevel]); |
| |
if (($resourcedata{$courselevelr}!~/^error\:/) && |
| |
($resourcedata{$courselevelr}!~/^con_lost/)) { |
| |
|
| |
if ($resourcedata{$courselevelr}) { |
| |
return $resourcedata{$courselevelr}; } |
| |
if ($resourcedata{$courselevelm}) { |
| |
return $resourcedata{$courselevelm}; } |
| |
if ($resourcedata{$courselevel}) { return $resourcedata{$courselevel}; } |
| |
|
| |
} else { |
| |
if ($resourcedata{$courselevelr}!~/No such file/) { |
| |
&logthis("<font color=blue>WARNING:". |
| |
" Trying to get resource data for ".$ENV{'user.name'}." at " |
| |
.$ENV{'user.domain'}.": ".$resourcedata{$courselevelr}. |
| |
"</font>"); |
| |
} |
| |
} |
| |
|
| |
# -------------------------------------------------------- second, check course |
| |
|
| |
my $reply=&reply('get:'. |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'. |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.num'}. |
| |
':resourcedata:'. |
| |
&escape($seclevelr).'&'.&escape($seclevelm).'&'.&escape($seclevel).'&'. |
| |
&escape($courselevelr).'&'.&escape($courselevelm).'&'.&escape($courselevel), |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.home'}); |
| |
if ($reply!~/^error\:/) { |
| |
foreach (split(/\&/,$reply)) { |
| |
if ($_) { return &unescape($_); } |
| |
} |
| |
} |
| |
if (($reply=~/^con_lost/) || ($reply=~/^error\:/)) { |
| |
&logthis("<font color=blue>WARNING:". |
| |
" Getting ".$reply." asking for ".$varname." for ". |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.num'}. |
| |
' at '. |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}. |
| |
' from '. |
| |
$ENV{'course.'.$ENV{'request.course.id'}.'.home'}. |
| |
"</font>"); |
| |
} |
| |
# ------------------------------------------------------ third, check map parms |
| |
my %parmhash=(); |
| |
my $thisparm=''; |
| |
if (tie(%parmhash,'GDBM_File', |
| |
$ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640)) { |
| |
$thisparm=$parmhash{$symbparm}; |
| |
untie(%parmhash); |
| |
} |
| |
if ($thisparm) { return $thisparm; } |
| |
} |
| |
|
| |
# --------------------------------------------- last, look in resource metadata |
| |
|
| |
$spacequalifierrest=~s/\./\_/; |
| |
my $metadata=&metadata($ENV{'request.filename'},$spacequalifierrest); |
| |
if ($metadata) { return $metadata; } |
| |
$metadata=&metadata($ENV{'request.filename'}, |
| |
'parameter_'.$spacequalifierrest); |
| |
if ($metadata) { return $metadata; } |
| |
|
| |
# ------------------------------------------------------------------ Cascade up |
| |
|
| |
unless ($space eq '0') { |
| |
my ($part,$id)=split(/\_/,$space); |
| |
if ($id) { |
| |
my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest, |
| |
$symbparm); |
| |
if ($partgeneral) { return $partgeneral; } |
| |
} else { |
| |
my $resourcegeneral=&EXT('resource.0.'.$qualifierrest, |
| |
$symbparm); |
| |
if ($resourcegeneral) { return $resourcegeneral; } |
| |
} |
| |
} |
| |
|
| |
# ---------------------------------------------------- Any other user namespace |
| |
} elsif ($realm eq 'environment') { |
| |
# ----------------------------------------------------------------- environment |
| |
return $ENV{'environment.'.$spacequalifierrest}; |
| |
} elsif ($realm eq 'system') { |
| |
# ----------------------------------------------------------------- system.time |
| |
if ($space eq 'time') { |
| |
return time; |
| |
} |
| |
} |
| |
return ''; |
| |
} |
| |
|
| |
# ---------------------------------------------------------------- Get metadata |
| |
|
| |
sub metadata { |
| |
my ($uri,$what,$liburi,$prefix,$depthcount)=@_; |
| |
|
| |
$uri=&declutter($uri); |
| |
my $filename=$uri; |
| |
$uri=~s/\.meta$//; |
| |
# |
| |
# Is the metadata already cached? |
| |
# Look at timestamp of caching |
| |
# Everything is cached by the main uri, libraries are never directly cached |
| |
# |
| |
unless (abs($metacache{$uri.':cachedtimestamp'}-time)<600) { |
| |
# |
| |
# Is this a recursive call for a library? |
| |
# |
| |
if ($liburi) { |
| |
$liburi=&declutter($liburi); |
| |
$filename=$liburi; |
| |
} |
| |
my %metathesekeys=(); |
| |
unless ($filename=~/\.meta$/) { $filename.='.meta'; } |
| |
my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename); |
| |
my $parser=HTML::TokeParser->new(\$metastring); |
| |
my $token; |
| |
undef %metathesekeys; |
| |
while ($token=$parser->get_token) { |
| |
if ($token->[0] eq 'S') { |
| |
if (defined($token->[2]->{'package'})) { |
| |
# |
| |
# This is a package - get package info |
| |
# |
| |
my $package=$token->[2]->{'package'}; |
| |
my $keyroot=''; |
| |
if ($prefix) { |
| |
$keyroot.='_'.$prefix; |
| |
} else { |
| |
if (defined($token->[2]->{'part'})) { |
| |
$keyroot.='_'.$token->[2]->{'part'}; |
| |
} |
| |
} |
| |
if (defined($token->[2]->{'id'})) { |
| |
$keyroot.='_'.$token->[2]->{'id'}; |
| |
} |
| |
if ($metacache{$uri.':packages'}) { |
| |
$metacache{$uri.':packages'}.=','.$package.$keyroot; |
| |
} else { |
| |
$metacache{$uri.':packages'}=$package.$keyroot; |
| |
} |
| |
foreach (keys %packagetab) { |
| |
if ($_=~/^$package\&/) { |
| |
my ($pack,$name,$subp)=split(/\&/,$_); |
| |
my $value=$packagetab{$_}; |
| |
my $part=$keyroot; |
| |
$part=~s/^\_//; |
| |
if ($subp eq 'display') { |
| |
$value.=' [Part: '.$part.']'; |
| |
} |
| |
my $unikey='parameter'.$keyroot.'_'.$name; |
| |
$metathesekeys{$unikey}=1; |
| |
$metacache{$uri.':'.$unikey.'.part'}=$part; |
| |
unless |
| |
(defined($metacache{$uri.':'.$unikey.'.'.$subp})) { |
| |
$metacache{$uri.':'.$unikey.'.'.$subp}=$value; |
| |
} |
| |
} |
| |
} |
| |
} else { |
| |
# |
| |
# This is not a package - some other kind of start tag |
| |
# |
| |
my $entry=$token->[1]; |
| |
my $unikey; |
| |
if ($entry eq 'import') { |
| |
$unikey=''; |
| |
} else { |
| |
$unikey=$entry; |
| |
} |
| |
if ($prefix) { |
| |
$unikey.=$prefix; |
| |
} else { |
| |
if (defined($token->[2]->{'part'})) { |
| |
$unikey.='_'.$token->[2]->{'part'}; |
| |
} |
| |
} |
| |
if (defined($token->[2]->{'id'})) { |
| |
$unikey.='_'.$token->[2]->{'id'}; |
| |
} |
| |
|
| |
if ($entry eq 'import') { |
| |
# |
| |
# Importing a library here |
| |
# |
| |
if (defined($depthcount)) { $depthcount++; } else |
| |
{ $depthcount=0; } |
| |
if ($depthcount<20) { |
| |
foreach (split(/\,/,&metadata($uri,'keys', |
| |
$parser->get_text('/import'),$unikey, |
| |
$depthcount))) { |
| |
$metathesekeys{$_}=1; |
| |
} |
| |
} |
| |
} else { |
| |
|
| |
if (defined($token->[2]->{'name'})) { |
| |
$unikey.='_'.$token->[2]->{'name'}; |
| |
} |
| |
$metathesekeys{$unikey}=1; |
| |
foreach (@{$token->[3]}) { |
| |
$metacache{$uri.':'.$unikey.'.'.$_}=$token->[2]->{$_}; |
| |
} |
| |
unless ( |
| |
$metacache{$uri.':'.$unikey}=$parser->get_text('/'.$entry) |
| |
) { $metacache{$uri.':'.$unikey}= |
| |
$metacache{$uri.':'.$unikey.'.default'}; |
| |
} |
| |
# end of not-a-package not-a-library import |
| |
} |
| |
# end of not-a-package start tag |
| |
} |
| |
# the next is the end of "start tag" |
| |
} |
| |
} |
| |
$metacache{$uri.':keys'}=join(',',keys %metathesekeys); |
| |
$metacache{$uri.':cachedtimestamp'}=time; |
| |
# this is the end of "was not already recently cached |
| |
} |
| |
return $metacache{$uri.':'.$what}; |
| |
} |
| |
|
| |
# ------------------------------------------------- Update symbolic store links |
| |
|
| |
sub symblist { |
| |
my ($mapname,%newhash)=@_; |
| |
$mapname=declutter($mapname); |
| |
my %hash; |
| |
if (($ENV{'request.course.fn'}) && (%newhash)) { |
| |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
| |
&GDBM_WRCREAT,0640)) { |
| |
foreach (keys %newhash) { |
| |
$hash{declutter($_)}=$mapname.'___'.$newhash{$_}; |
| |
} |
| |
if (untie(%hash)) { |
| |
return 'ok'; |
| |
} |
| |
} |
| |
} |
| |
return 'error'; |
| |
} |
| |
|
| |
# ------------------------------------------------------ Return symb list entry |
| |
|
| |
sub symbread { |
| |
my $thisfn=shift; |
| |
unless ($thisfn) { |
| |
if ($ENV{'request.symb'}) { return $ENV{'request.symb'}; } |
| |
$thisfn=$ENV{'request.filename'}; |
| |
} |
| |
$thisfn=declutter($thisfn); |
| |
my %hash; |
| |
my %bighash; |
| |
my $syval=''; |
| |
if (($ENV{'request.course.fn'}) && ($thisfn)) { |
| |
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db', |
| |
&GDBM_READER,0640)) { |
| |
$syval=$hash{$thisfn}; |
| |
untie(%hash); |
| |
} |
| |
# ---------------------------------------------------------- There was an entry |
| |
if ($syval) { |
| |
unless ($syval=~/\_\d+$/) { |
| |
unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) { |
| |
&appenv('request.ambiguous' => $thisfn); |
| |
return ''; |
| |
} |
| |
$syval.=$1; |
| |
} |
| |
} else { |
| |
# ------------------------------------------------------- Was not in symb table |
| |
if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db', |
| |
&GDBM_READER,0640)) { |
| |
# ---------------------------------------------- Get ID(s) for current resource |
| |
my $ids=$bighash{'ids_/res/'.$thisfn}; |
| |
unless ($ids) { |
| |
$ids=$bighash{'ids_/'.$thisfn}; |
| |
} |
| |
if ($ids) { |
| |
# ------------------------------------------------------------------- Has ID(s) |
| |
my @possibilities=split(/\,/,$ids); |
| |
if ($#possibilities==0) { |
| |
# ----------------------------------------------- There is only one possibility |
| |
my ($mapid,$resid)=split(/\./,$ids); |
| |
$syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid; |
| |
} else { |
| |
# ------------------------------------------ There is more than one possibility |
| |
my $realpossible=0; |
| |
foreach (@possibilities) { |
| |
my $file=$bighash{'src_'.$_}; |
| |
if (&allowed('bre',$file)) { |
| |
my ($mapid,$resid)=split(/\./,$_); |
| |
if ($bighash{'map_type_'.$mapid} ne 'page') { |
| |
$realpossible++; |
| |
$syval=declutter($bighash{'map_id_'.$mapid}). |
| |
'___'.$resid; |
| |
} |
| |
} |
| |
} |
| |
if ($realpossible!=1) { $syval=''; } |
| |
} |
| |
} |
| |
untie(%bighash) |
| |
} |
| |
} |
| |
if ($syval) { |
| |
return $syval.'___'.$thisfn; |
| |
} |
| |
} |
| |
&appenv('request.ambiguous' => $thisfn); |
| |
return ''; |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Return random seed |
| |
|
| |
sub numval { |
| |
my $txt=shift; |
| |
$txt=~tr/A-J/0-9/; |
| |
$txt=~tr/a-j/0-9/; |
| |
$txt=~tr/K-T/0-9/; |
| |
$txt=~tr/k-t/0-9/; |
| |
$txt=~tr/U-Z/0-5/; |
| |
$txt=~tr/u-z/0-5/; |
| |
$txt=~s/\D//g; |
| |
return int($txt); |
| |
} |
| |
|
| |
sub rndseed { |
| |
my ($symb,$courseid,$domain,$username)=@_; |
| |
if (!$symb) { |
| |
unless ($symb=&symbread()) { return time; } |
| |
} |
| |
if (!$courseid) { $courseid=$ENV{'request.course.id'};} |
| |
if (!$domain) {$domain=$ENV{'user.domain'};} |
| |
if (!$username) {$username=$ENV{'user.name'};} |
| |
{ |
| |
use integer; |
| |
my $symbchck=unpack("%32C*",$symb) << 27; |
| |
my $symbseed=numval($symb) << 22; |
| |
my $namechck=unpack("%32C*",$username) << 17; |
| |
my $nameseed=numval($username) << 12; |
| |
my $domainseed=unpack("%32C*",$domain) << 7; |
| |
my $courseseed=unpack("%32C*",$courseid); |
| |
my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck; |
| |
#uncommenting these lines can break things! |
| |
#&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck"); |
| |
#&Apache::lonxml::debug("rndseed :$num:$symb"); |
| |
return $num; |
| |
} |
| |
} |
| |
|
| |
sub ireceipt { |
| |
my ($funame,$fudom,$fucourseid,$fusymb)=@_; |
| |
my $cuname=unpack("%32C*",$funame); |
| |
my $cudom=unpack("%32C*",$fudom); |
| |
my $cucourseid=unpack("%32C*",$fucourseid); |
| |
my $cusymb=unpack("%32C*",$fusymb); |
| |
my $cunique=unpack("%32C*",$perlvar{'lonReceipt'}); |
| |
return unpack("%32C*",$perlvar{'lonHostID'}).'-'. |
| |
($cunique%$cuname+ |
| |
$cunique%$cudom+ |
| |
$cusymb%$cuname+ |
| |
$cusymb%$cudom+ |
| |
$cucourseid%$cuname+ |
| |
$cucourseid%$cudom); |
| |
} |
| |
|
| |
sub receipt { |
| |
return &ireceipt($ENV{'user.name'},$ENV{'user.domain'}, |
| |
$ENV{'request.course.id'},&symbread()); |
| |
} |
| |
|
| |
# ------------------------------------------------------------ Serves up a file |
| |
# returns either the contents of the file or a -1 |
| |
sub getfile { |
| |
my $file=shift; |
| |
&repcopy($file); |
| |
if (! -e $file ) { return -1; }; |
| |
my $fh=Apache::File->new($file); |
| |
my $a=''; |
| |
while (<$fh>) { $a .=$_; } |
| |
return $a |
| |
} |
| |
|
| |
sub filelocation { |
| |
my ($dir,$file) = @_; |
| |
my $location; |
| |
$file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces |
| |
if ($file=~m:^/~:) { # is a contruction space reference |
| |
$location = $file; |
| |
$location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:; |
| |
} else { |
| |
$file=~s/^$perlvar{'lonDocRoot'}//; |
| |
$file=~s:^/*res::; |
| |
if ( !( $file =~ m:^/:) ) { |
| |
$location = $dir. '/'.$file; |
| |
} else { |
| |
$location = '/home/httpd/html/res'.$file; |
| |
} |
| |
} |
| |
$location=~s://+:/:g; # remove duplicate / |
| |
while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/.. |
| |
return $location; |
| |
} |
| |
|
| |
sub hreflocation { |
| |
my ($dir,$file)=@_; |
| |
unless (($file=~/^http:\/\//i) || ($file=~/^\//)) { |
| |
my $finalpath=filelocation($dir,$file); |
| |
$finalpath=~s/^\/home\/httpd\/html//; |
| |
return $finalpath; |
| |
} else { |
| |
return $file; |
| |
} |
| |
} |
| |
|
| |
# ------------------------------------------------------------- Declutters URLs |
| |
|
| |
sub declutter { |
| |
my $thisfn=shift; |
| |
$thisfn=~s/^$perlvar{'lonDocRoot'}//; |
| |
$thisfn=~s/^\///; |
| |
$thisfn=~s/^res\///; |
| |
return $thisfn; |
| |
} |
| |
|
| |
# -------------------------------------------------------- Escape Special Chars |
| |
|
| |
sub escape { |
| |
my $str=shift; |
| |
$str =~ s/(\W)/"%".unpack('H2',$1)/eg; |
| |
return $str; |
| |
} |
| |
|
| |
# ----------------------------------------------------- Un-Escape Special Chars |
| |
|
| |
sub unescape { |
| |
my $str=shift; |
| |
$str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
| |
return $str; |
| |
} |
| |
|
| # ================================================================ Main Program |
# ================================================================ Main Program |
| |
|
| sub BEGIN { |
sub goodbye { |
| if ($readit ne 'done') { |
&flushcourselogs(); |
| |
&logthis("Shutting down"); |
| |
} |
| |
|
| |
BEGIN { |
| # ------------------------------------------------------------ Read access.conf |
# ------------------------------------------------------------ Read access.conf |
| |
unless ($readit) { |
| { |
{ |
| my $config=Apache::File->new("/etc/httpd/conf/access.conf"); |
my $config=Apache::File->new("/etc/httpd/conf/access.conf"); |
| |
|
| while (my $configline=<$config>) { |
while (my $configline=<$config>) { |
| if ($configline =~ /PerlSetVar/) { |
if ($configline =~ /PerlSetVar/) { |
| my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); |
my ($dummy,$varname,$varvalue)=split(/\s+/,$configline); |
| |
chomp($varvalue); |
| $perlvar{$varname}=$varvalue; |
$perlvar{$varname}=$varvalue; |
| } |
} |
| } |
} |
|
Line 248 if ($readit ne 'done') {
|
Line 2589 if ($readit ne 'done') {
|
| my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab"); |
my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab"); |
| |
|
| while (my $configline=<$config>) { |
while (my $configline=<$config>) { |
| |
chomp($configline); |
| my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
my ($id,$domain,$role,$name,$ip)=split(/:/,$configline); |
| $hostname{$id}=$name; |
$hostname{$id}=$name; |
| $hostdom{$id}=$domain; |
$hostdom{$id}=$domain; |
| |
$hostip{$id}=$ip; |
| if ($role eq 'library') { $libserv{$id}=$name; } |
if ($role eq 'library') { $libserv{$id}=$name; } |
| } |
} |
| } |
} |
|
Line 266 if ($readit ne 'done') {
|
Line 2609 if ($readit ne 'done') {
|
| } |
} |
| } |
} |
| } |
} |
| $readit='done'; |
# ------------------------------------------------------------ Read permissions |
| &logthis('Read configuration'); |
{ |
| |
my $config=Apache::File->new("$perlvar{'lonTabDir'}/roles.tab"); |
| |
|
| |
while (my $configline=<$config>) { |
| |
chomp($configline); |
| |
if ($configline) { |
| |
my ($role,$perm)=split(/ /,$configline); |
| |
if ($perm ne '') { $pr{$role}=$perm; } |
| |
} |
| |
} |
| |
} |
| |
|
| |
# -------------------------------------------- Read plain texts for permissions |
| |
{ |
| |
my $config=Apache::File->new("$perlvar{'lonTabDir'}/rolesplain.tab"); |
| |
|
| |
while (my $configline=<$config>) { |
| |
chomp($configline); |
| |
if ($configline) { |
| |
my ($short,$plain)=split(/:/,$configline); |
| |
if ($plain ne '') { $prp{$short}=$plain; } |
| |
} |
| |
} |
| |
} |
| |
|
| |
# ---------------------------------------------------------- Read package table |
| |
{ |
| |
my $config=Apache::File->new("$perlvar{'lonTabDir'}/packages.tab"); |
| |
|
| |
while (my $configline=<$config>) { |
| |
chomp($configline); |
| |
my ($short,$plain)=split(/:/,$configline); |
| |
my ($pack,$name)=split(/\&/,$short); |
| |
if ($plain ne '') { |
| |
$packagetab{$pack.'&'.$name.'&name'}=$name; |
| |
$packagetab{$short}=$plain; |
| |
} |
| |
} |
| |
} |
| |
|
| |
%metacache=(); |
| |
|
| |
$processmarker=$$.'_'.time.'_'.$perlvar{'lonHostID'}; |
| |
$dumpcount=0; |
| |
|
| |
&logtouch(); |
| |
&logthis('<font color=yellow>INFO: Read configuration</font>'); |
| |
$readit=1; |
| } |
} |
| } |
} |
| |
|
| 1; |
1; |
| |
__END__ |
| |
|
| |
=head1 NAME |
| |
|
| |
Apache::lonnet - TCP networking package |
| |
|
| |
=head1 SYNOPSIS |
| |
|
| |
Invoked by other LON-CAPA modules. |
| |
|
| |
&Apache::lonnet::SUBROUTINENAME(ARGUMENTS); |
| |
|
| |
=head1 INTRODUCTION |
| |
|
| |
This module provides subroutines which interact with the |
| |
lonc/lond (TCP) network layer of LON-CAPA. |
| |
|
| |
This is part of the LearningOnline Network with CAPA project |
| |
described at http://www.lon-capa.org. |
| |
|
| |
=head1 HANDLER SUBROUTINE |
| |
|
| |
There is no handler routine for this module. |
| |
|
| |
=head1 OTHER SUBROUTINES |
| |
|
| |
=over 4 |
| |
|
| |
=item * |
| |
|
| |
logtouch() : make sure the logfile, lonnet.log, exists |
| |
|
| |
=item * |
| |
|
| |
logthis() : append message to lonnet.log |
| |
|
| |
=item * |
| |
|
| |
logperm() : append a permanent message to lonnet.perm.log |
| |
|
| |
=item * |
| |
|
| |
subreply() : non-critical communication, called by &reply |
| |
|
| |
=item * |
| |
|
| |
reply() : makes two attempts to pass message; logs refusals and rejections |
| |
|
| |
=item * |
| |
|
| |
reconlonc() : tries to reconnect lonc client processes. |
| |
|
| |
=item * |
| |
|
| |
critical() : passes a critical message to another server; if cannot get |
| |
through then place message in connection buffer |
| |
|
| |
=item * |
| |
|
| |
appenv(%hash) : read in current user environment, append new environment |
| |
values to make new user environment |
| |
|
| |
=item * |
| |
|
| |
delenv($varname) : read in current user environment, remove all values |
| |
beginning with $varname, write new user environment (note: flock is used |
| |
to prevent conflicting shared read/writes with file) |
| |
|
| |
=item * |
| |
|
| |
spareserver() : find server with least workload from spare.tab |
| |
|
| |
=item * |
| |
|
| |
queryauthenticate($uname,$udom) : try to determine user's current |
| |
authentication scheme |
| |
|
| |
=item * |
| |
|
| |
authenticate($uname,$upass,$udom) : try to authenticate user from domain's lib |
| |
servers (first use the current one) |
| |
|
| |
=item * |
| |
|
| |
homeserver($uname,$udom) : find the homebase for a user from domain's lib |
| |
servers |
| |
|
| |
=item * |
| |
|
| |
idget($udom,@ids) : find the usernames behind a list of IDs (returns hash: |
| |
id=>name,id=>name) |
| |
|
| |
=item * |
| |
|
| |
idrget($udom,@unames) : find the IDs behind a list of usernames (returns hash: |
| |
name=>id,name=>id) |
| |
|
| |
=item * |
| |
|
| |
idput($udom,%ids) : store away a list of names and associated IDs |
| |
|
| |
=item * |
| |
|
| |
usection($domain,$user,$courseid) : output of section name/number or '' for |
| |
"not in course" and '-1' for "no section" |
| |
|
| |
=item * |
| |
|
| |
userenvironment($domain,$user,$what) : puts out any environment parameter |
| |
for a user |
| |
|
| |
=item * |
| |
|
| |
subscribe($fname) : subscribe to a resource, return URL if possible |
| |
|
| |
=item * |
| |
|
| |
repcopy($filename) : replicate file |
| |
|
| |
=item * |
| |
|
| |
ssi($url,%hash) : server side include, does a complete request cycle on url to |
| |
localhost, posts hash |
| |
|
| |
=item * |
| |
|
| |
log($domain,$name,$home,$message) : write to permanent log for user; use |
| |
critical subroutine |
| |
|
| |
=item * |
| |
|
| |
flushcourselogs() : flush (save) buffer logs and access logs |
| |
|
| |
=item * |
| |
|
| |
courselog($what) : save message for course in hash |
| |
|
| |
=item * |
| |
|
| |
courseacclog($what) : save message for course using &courselog(). Perform |
| |
special processing for specific resource types (problems, exams, quizzes, etc). |
| |
|
| |
=item * |
| |
|
| |
countacc($url) : count the number of accesses to a given URL |
| |
|
| |
=item * |
| |
|
| |
sub checkout($symb,$tuname,$tudom,$tcrsid) : check out an item |
| |
|
| |
=item * |
| |
|
| |
sub checkin($token) : check in an item |
| |
|
| |
=item * |
| |
|
| |
sub expirespread($uname,$udom,$stype,$usymb) : set expire date for spreadsheet |
| |
|
| |
=item * |
| |
|
| |
devalidate($symb) : devalidate spreadsheets |
| |
|
| |
=item * |
| |
|
| |
hash2str(%hash) : convert a hash into a string complete with escaping and '=' |
| |
and '&' separators |
| |
|
| |
=item * |
| |
|
| |
str2hash($string) : convert string to hash using unescaping and splitting on |
| |
'=' and '&' |
| |
|
| |
=item * |
| |
|
| |
tmpreset($symb,$namespace,$domain,$stuname) : temporary storage |
| |
|
| |
=item * |
| |
|
| |
tmprestore($symb,$namespace,$domain,$stuname) : temporary restore |
| |
|
| |
=item * |
| |
|
| |
store($storehash,$symb,$namespace,$domain,$stuname) : stores hash permanently |
| |
for this url; hashref needs to be given and should be a \%hashname; the |
| |
remaining args aren't required and if they aren't passed or are '' they will |
| |
be derived from the ENV |
| |
|
| |
=item * |
| |
|
| |
cstore($storehash,$symb,$namespace,$domain,$stuname) : same as store but |
| |
uses critical subroutine |
| |
|
| |
=item * |
| |
|
| |
restore($symb,$namespace,$domain,$stuname) : returns hash for this symb; |
| |
all args are optional |
| |
|
| |
=item * |
| |
|
| |
coursedescription($courseid) : course description |
| |
|
| |
=item * |
| |
|
| |
rolesinit($domain,$username,$authhost) : get user privileges |
| |
|
| |
=item * |
| |
|
| |
get($namespace,$storearr,$udomain,$uname) : returns hash with keys from array |
| |
reference filled in from namesp ($udomain and $uname are optional) |
| |
|
| |
=item * |
| |
|
| |
del($namespace,$storearr,$udomain,$uname) : deletes keys out of array from |
| |
namesp ($udomain and $uname are optional) |
| |
|
| |
=item * |
| |
|
| |
dump($namespace,$udomain,$uname,$regexp) : |
| |
dumps the complete (or key matching regexp) namespace into a hash |
| |
($udomain, $uname and $regexp are optional) |
| |
|
| |
=item * |
| |
|
| |
put($namespace,$storehash,$udomain,$uname) : stores hash in namesp |
| |
($udomain and $uname are optional) |
| |
|
| |
=item * |
| |
|
| |
cput($namespace,$storehash,$udomain,$uname) : critical put |
| |
($udomain and $uname are optional) |
| |
|
| |
=item * |
| |
|
| |
eget($namespace,$storearr,$udomain,$uname) : returns hash with keys from array |
| |
reference filled in from namesp (encrypts the return communication) |
| |
($udomain and $uname are optional) |
| |
|
| |
=item * |
| |
|
| |
allowed($priv,$uri) : check for a user privilege; returns codes for allowed |
| |
actions |
| |
F: full access |
| |
U,I,K: authentication modes (cxx only) |
| |
'': forbidden |
| |
1: user needs to choose course |
| |
2: browse allowed |
| |
|
| |
=item * |
| |
|
| |
definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom |
| |
role rolename set privileges in format of lonTabs/roles.tab for system, domain, |
| |
and course level |
| |
|
| |
=item * |
| |
|
| |
metadata_query($query,$custom,$customshow) : make a metadata query against the |
| |
network of library servers; returns file handle of where SQL and regex results |
| |
will be stored for query |
| |
|
| |
=item * |
| |
|
| |
plaintext($short) : return value in %prp hash (rolesplain.tab); plain text |
| |
explanation of a user role term |
| |
|
| |
=item * |
| |
|
| |
assignrole($udom,$uname,$url,$role,$end,$start) : assign role; give a role to a |
| |
user for the level given by URL. Optional start and end dates (leave empty |
| |
string or zero for "no date") |
| |
|
| |
=item * |
| |
|
| |
modifyuserauth($udom,$uname,$umode,$upass) : modify user authentication |
| |
|
| |
=item * |
| |
|
| |
modifyuser($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene) : |
| |
modify user |
| |
|
| |
=item * |
| |
|
| |
modifystudent($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec, |
| |
$end,$start) : modify student |
| |
|
| |
=item * |
| |
|
| |
writecoursepref($courseid,%prefs) : write preferences for a course |
| |
|
| |
=item * |
| |
|
| |
createcourse($udom,$description,$url) : make/modify course |
| |
|
| |
=item * |
| |
|
| |
assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start) : assign |
| |
custom role; give a custom role to a user for the level given by URL. Specify |
| |
name and domain of role author, and role name |
| |
|
| |
=item * |
| |
|
| |
revokerole($udom,$uname,$url,$role) : revoke a role for url |
| |
|
| |
=item * |
| |
|
| |
revokecustomrole($udom,$uname,$url,$role) : revoke a custom role |
| |
|
| |
=item * |
| |
|
| |
dirlist($uri) : return directory list based on URI |
| |
|
| |
=item * |
| |
|
| |
directcondval($number) : get current value of a condition; reads from a state |
| |
string |
| |
|
| |
=item * |
| |
|
| |
condval($condidx) : value of condition index based on state |
| |
|
| |
=item * |
| |
|
| |
EXT($varname,$symbparm) : value of a variable |
| |
|
| |
=item * |
| |
|
| |
metadata($uri,$what,$liburi,$prefix,$depthcount) : get metadata; returns the |
| |
metadata entry for a file; entry='keys', returns a comma separated list of keys |
| |
|
| |
=item * |
| |
|
| |
symblist($mapname,%newhash) : update symbolic storage links |
| |
|
| |
=item * |
| |
|
| |
symbread($filename) : return symbolic list entry (filename argument optional); |
| |
returns the data handle |
| |
|
| |
=item * |
| |
|
| |
numval($salt) : return random seed value (addend for rndseed) |
| |
|
| |
=item * |
| |
|
| |
rndseed($symb,$courseid,$domain,$username) : create a random sum; returns |
| |
a random seed, all arguments are optional, if they aren't sent it uses the |
| |
environment to derive them. Note: if symb isn't sent and it can't get one |
| |
from &symbread it will use the current time as its return value |
| |
|
| |
=item * |
| |
|
| |
ireceipt($funame,$fudom,$fucourseid,$fusymb) : return unique, |
| |
unfakeable, receipt |
| |
|
| |
=item * |
| |
|
| |
receipt() : API to ireceipt working off of ENV values; given out to users |
| |
|
| |
=item * |
| |
|
| |
getfile($file) : serves up a file, returns the contents of a file or -1; |
| |
replicates and subscribes to the file |
| |
|
| |
=item * |
| |
|
| |
filelocation($dir,$file) : returns file system location of a file based on URI; |
| |
meant to be "fairly clean" absolute reference |
| |
|
| |
=item * |
| |
|
| |
hreflocation($dir,$file) : returns file system location or a URL; same as |
| |
filelocation except for hrefs |
| |
|
| |
=item * |
| |
|
| |
declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc) |
| |
|
| |
=item * |
| |
|
| |
escape() : unpack non-word characters into CGI-compatible hex codes |
| |
|
| |
=item * |
| |
|
| |
unescape() : pack CGI-compatible hex codes into actual non-word ASCII character |
| |
|
| |
=item * |
| |
|
| |
goodbye() : flush course logs and log shutting down; it is called in srm.conf |
| |
as a PerlChildExitHandler |
| |
|
| |
=back |
| |
|
| |
=cut |
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