loncom/lonnet/perl/lonnet.pm - diff

Return to lonnet.pm CVS log

Up to [LON-CAPA] / loncom / lonnet / perl

Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.129 and 1.1256

version 1.1172.2.129, 2020/10/15 19:20:25	version 1.1256, 2014/04/23 10:11:34
Line 74 use strict;	Line 74 use strict;
use LWP::UserAgent();	use LWP::UserAgent();
use HTTP::Date;	use HTTP::Date;
use Image::Magick;	use Image::Magick;
use CGI::Cookie;

use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex
	use Encode;

	use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease	$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
%managerstab $passwdmin);	%managerstab);

my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,	my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
%userrolehash, $processmarker, $dumpcount, %coursedombuf,	%userrolehash, $processmarker, $dumpcount, %coursedombuf,
Line 90 use GDBM_File;	Line 92 use GDBM_File;
use HTML::LCParser;	use HTML::LCParser;
use Fcntl qw(:flock);	use Fcntl qw(:flock);
use Storable qw(thaw nfreeze);	use Storable qw(thaw nfreeze);
use Time::HiRes qw( sleep gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
use Cache::Memcached;	use Cache::Memcached;
use Digest::MD5;	use Digest::MD5;
use Math::Random;	use Math::Random;
Line 99 use LONCAPA qw(:DEFAULT :match);	Line 101 use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;	use LONCAPA::Configuration;
use LONCAPA::lonmetadata;	use LONCAPA::lonmetadata;
use LONCAPA::Lond;	use LONCAPA::Lond;
use LONCAPA::transliterate;

use File::Copy;	use File::Copy;

my $readit;	my $readit;
my $max_connection_retries = 20; # Or some such value.	my $max_connection_retries = 10; # Or some such value.

require Exporter;	require Exporter;

our @ISA = qw (Exporter);	our @ISA = qw (Exporter);
our @EXPORT = qw(%env);	our @EXPORT = qw(%env);


# ------------------------------------ Logging (parameters, docs, slots, roles)	# ------------------------------------ Logging (parameters, docs, slots, roles)
{	{
my $logid;	my $logid;
Line 125 our @EXPORT = qw(%env);	Line 127 our @EXPORT = qw(%env);
$logid ++;	$logid ++;
my $now = time();	my $now = time();
my $id=$now.'00000'.$$.'00000'.$logid;	my $id=$now.'00000'.$$.'00000'.$logid;
my $logentry = {	my $logentry = {
$id => {	$id => {
'exe_uname' => $env{'user.name'},	'exe_uname' => $env{'user.name'},
'exe_udom' => $env{'user.domain'},	'exe_udom' => $env{'user.domain'},
'exe_time' => $now,	'exe_time' => $now,
'exe_ip' => $ENV{'REMOTE_ADDR'},	'exe_ip' => $ENV{'REMOTE_ADDR'},
'delflag' => $delflag,	'delflag' => $delflag,
'logentry' => $storehash,	'logentry' => $storehash,
'uname' => $uname,	'uname' => $uname,
'udom' => $udom,	'udom' => $udom,
}	}
};	};
return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);	return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
}	}
}	}

sub logtouch {	sub logtouch {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
unless (-e "$execdir/logs/lonnet.log") {	unless (-e "$execdir/logs/lonnet.log") {
open(my $fh,">>","$execdir/logs/lonnet.log");	open(my $fh,">>$execdir/logs/lonnet.log");
close $fh;	close $fh;
}	}
my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];	my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
Line 156 sub logthis {	Line 158 sub logthis {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
if (open(my $fh,">>","$execdir/logs/lonnet.log")) {	if (open(my $fh,">>$execdir/logs/lonnet.log")) {
my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.	my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
print $fh $logstring;	print $fh $logstring;
close($fh);	close($fh);
Line 169 sub logperm {	Line 171 sub logperm {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {	if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
print $fh "$now:$message:$local\n";	print $fh "$now:$message:$local\n";
close($fh);	close($fh);
}	}
Line 263 sub get_server_loncaparev {	Line 265 sub get_server_loncaparev {
if ($caller eq 'loncron') {	if ($caller eq 'loncron') {
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
$ua->timeout(4);	$ua->timeout(4);
my $hostname = &hostname($lonhost);
my $protocol = $protocol{$lonhost};	my $protocol = $protocol{$lonhost};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
my $url = $protocol.'://'.$hostname.'/adm/about.html';	my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
my $request=new HTTP::Request('GET',$url);	my $request=new HTTP::Request('GET',$url);
my $response=$ua->request($request);	my $response=$ua->request($request);
unless ($response->is_error()) {	unless ($response->is_error()) {
Line 359 sub remote_devalidate_cache {	Line 360 sub remote_devalidate_cache {
my $items;	my $items;
return unless (ref($cachekeys) eq 'ARRAY');	return unless (ref($cachekeys) eq 'ARRAY');
my $cachestr = join('&',@{$cachekeys});	my $cachestr = join('&',@{$cachekeys});
return &reply('devalidatecache:'.&escape($cachestr),$lonhost);	my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
	return $response;
}	}

# -------------------------------------------------- Non-critical communication	# -------------------------------------------------- Non-critical communication
Line 373 sub subreply {	Line 375 sub subreply {

my $lockfile=$peerfile.".lock";	my $lockfile=$peerfile.".lock";
while (-e $lockfile) { # Need to wait for the lockfile to disappear.	while (-e $lockfile) { # Need to wait for the lockfile to disappear.
sleep(0.1);	sleep(1);
}	}
# At this point, either a loncnew parent is listening or an old lonc	# At this point, either a loncnew parent is listening or an old lonc
# or loncnew child is listening so we can connect or everything's dead.	# or loncnew child is listening so we can connect or everything's dead.
Line 391 sub subreply {	Line 393 sub subreply {
} else {	} else {
&create_connection(&hostname($server),$server);	&create_connection(&hostname($server),$server);
}	}
sleep(0.1); # Try again later if failed connection.	sleep(1); # Try again later if failed connection.
}	}
my $answer;	my $answer;
if ($client) {	if ($client) {
Line 410 sub reply {	Line 412 sub reply {
unless (defined(&hostname($server))) { return 'no_such_host'; }	unless (defined(&hostname($server))) { return 'no_such_host'; }
my $answer=subreply($cmd,$server);	my $answer=subreply($cmd,$server);
if (($answer=~/^refused/) \|\| ($answer=~/^rejected/)) {	if (($answer=~/^refused/) \|\| ($answer=~/^rejected/)) {
my $logged = $cmd;	&logthis("<font color=\"blue\">WARNING:".
if ($cmd =~ /^encrypt:([^:]+):/) {	" $cmd to $server returned $answer</font>");
my $subcmd = $1;
if (($subcmd eq 'auth') \|\| ($subcmd eq 'passwd') \|\|
($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'putdom') \|\| ($subcmd eq 'autoexportgrades')) {
(undef,undef,my @rest) = split(/:/,$cmd);
if (($subcmd eq 'auth') \|\| ($subcmd eq 'putdom')) {
splice(@rest,2,1,'Hidden');
} elsif ($subcmd eq 'passwd') {
splice(@rest,2,2,('Hidden','Hidden'));
} elsif (($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'autoexportgrades')) {
splice(@rest,3,1,'Hidden');
}
$logged = join(':',('encrypt:'.$subcmd,@rest));
}
}
&logthis("<font color=\"blue\">WARNING:".
" $logged to $server returned $answer</font>");
}	}
return $answer;	return $answer;
}	}
Line 438 sub reply {	Line 422 sub reply {

sub reconlonc {	sub reconlonc {
my ($lonid) = @_;	my ($lonid) = @_;
	my $hostname = &hostname($lonid);
if ($lonid) {	if ($lonid) {
my $hostname = &hostname($lonid);
my $peerfile="$perlvar{'lonSockDir'}/$hostname";	my $peerfile="$perlvar{'lonSockDir'}/$hostname";
if ($hostname && -e $peerfile) {	if ($hostname && -e $peerfile) {
&logthis("Trying to reconnect lonc for $lonid ($hostname)");	&logthis("Trying to reconnect lonc for $lonid ($hostname)");
Line 457 sub reconlonc {	Line 441 sub reconlonc {

&logthis("Trying to reconnect lonc");	&logthis("Trying to reconnect lonc");
my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";	my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
if (open(my $fh,"<",$loncfile)) {	if (open(my $fh,"<$loncfile")) {
my $loncpid=<$fh>;	my $loncpid=<$fh>;
chomp($loncpid);	chomp($loncpid);
if (kill 0 => $loncpid) {	if (kill 0 => $loncpid) {
Line 485 sub critical {	Line 469 sub critical {
}	}
my $answer=reply($cmd,$server);	my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {	if ($answer eq 'con_lost') {
&reconlonc($server);	&reconlonc("$perlvar{'lonSockDir'}/$server");
my $answer=reply($cmd,$server);	my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {	if ($answer eq 'con_lost') {
my $now=time;	my $now=time;
Line 497 sub critical {	Line 481 sub critical {
$dumpcount++;	$dumpcount++;
{	{
my $dfh;	my $dfh;
if (open($dfh,">",$dfilename)) {	if (open($dfh,">$dfilename")) {
print $dfh "$cmd\n";	print $dfh "$cmd\n";
close($dfh);	close($dfh);
}	}
}	}
sleep 1;	sleep 2;
my $wcmd='';	my $wcmd='';
{	{
my $dfh;	my $dfh;
if (open($dfh,"<",$dfilename)) {	if (open($dfh,"<$dfilename")) {
$wcmd=<$dfh>;	$wcmd=<$dfh>;
close($dfh);	close($dfh);
}	}
Line 622 sub transfer_profile_to_env {	Line 606 sub transfer_profile_to_env {

# ---------------------------------------------------- Check for valid session	# ---------------------------------------------------- Check for valid session
sub check_for_valid_session {	sub check_for_valid_session {
my ($r,$name,$userhashref,$domref) = @_;	my ($r,$name,$userhashref) = @_;
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));	my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
my ($lonidsdir,$linkname,$pubname,$secure,$lonid);	if ($name eq '') {
if ($name eq 'lonDAV') {	$name = 'lonID';
$lonidsdir=$r->dir_config('lonDAVsessDir');
} else {
$lonidsdir=$r->dir_config('lonIDsDir');
if ($name eq '') {
$name = 'lonID';
}
}
if ($name eq 'lonID') {
$secure = 'lonSID';
$linkname = 'lonLinkID';
$pubname = 'lonPubID';
if (exists($cookies{$secure})) {
$lonid=$cookies{$secure};
} elsif (exists($cookies{$name})) {
$lonid=$cookies{$name};
} elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) {
$lonid=$cookies{$linkname};
} elsif (exists($cookies{$pubname})) {
$lonid=$cookies{$pubname};
}
} else {
$lonid=$cookies{$name};
}	}
	my $lonid=$cookies{$name};
return undef if (!$lonid);	return undef if (!$lonid);

my $handle=&LONCAPA::clean_handle($lonid->value);	my $handle=&LONCAPA::clean_handle($lonid->value);
if (-l "$lonidsdir/$handle.id") {	my $lonidsdir;
my $link = readlink("$lonidsdir/$handle.id");	if ($name eq 'lonDAV') {
if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {	$lonidsdir=$r->dir_config('lonDAVsessDir');
$handle = $1;	} else {
}	$lonidsdir=$r->dir_config('lonIDsDir');
}
if (!-e "$lonidsdir/$handle.id") {
if ((ref($domref)) && ($name eq 'lonID') &&
($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
$$domref = $possudom;
}
}
return undef;
}	}
	return undef if (!-e "$lonidsdir/$handle.id");

my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");	my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
return undef if (!$opened);	return undef if (!$opened);
Line 681 sub check_for_valid_session {	Line 635 sub check_for_valid_session {

if (!defined($disk_env{'user.name'})	if (!defined($disk_env{'user.name'})
\|\| !defined($disk_env{'user.domain'})) {	\|\| !defined($disk_env{'user.domain'})) {
untie(%disk_env);
return undef;	return undef;
}	}

Line 689 sub check_for_valid_session {	Line 642 sub check_for_valid_session {
$userhashref->{'name'} = $disk_env{'user.name'};	$userhashref->{'name'} = $disk_env{'user.name'};
$userhashref->{'domain'} = $disk_env{'user.domain'};	$userhashref->{'domain'} = $disk_env{'user.domain'};
}	}
untie(%disk_env);

return $handle;	return $handle;
}	}
Line 714 sub timed_flock {	Line 666 sub timed_flock {
}	}
}	}

sub get_sessionfile_vars {
my ($handle,$lonidsdir,$storearr) = @_;
my %returnhash;
unless (ref($storearr) eq 'ARRAY') {
return %returnhash;
}
if (-l "$lonidsdir/$handle.id") {
my $link = readlink("$lonidsdir/$handle.id");
if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
$handle = $1;
}
}
if ((-e "$lonidsdir/$handle.id") &&
($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
if (open(my $idf,'+<',"$lonidsdir/$handle.id")) {
flock($idf,LOCK_SH);
if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
&GDBM_READER(),0640)) {
foreach my $item (@{$storearr}) {
$returnhash{$item} = $disk_env{$item};
}
untie(%disk_env);
}
}
}
}
return %returnhash;
}

# ---------------------------------------------------------- Append Environment	# ---------------------------------------------------------- Append Environment

sub appenv {	sub appenv {
Line 770 sub appenv {	Line 691 sub appenv {
$env{$key}=$newenv->{$key};	$env{$key}=$newenv->{$key};
}	}
}	}
my $lonids = $perlvar{'lonIDsDir'};	my $opened = open(my $env_file,'+<',$env{'user.environment'});
if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) {	if ($opened
my $opened = open(my $env_file,'+<',$env{'user.environment'});	&& &timed_flock($env_file,LOCK_EX)
if ($opened	&&
&& &timed_flock($env_file,LOCK_EX)	tie(my %disk_env,'GDBM_File',$env{'user.environment'},
&&	(&GDBM_WRITER()\|&GDBM_NOLOCK()),0640)) {
tie(my %disk_env,'GDBM_File',$env{'user.environment'},	while (my ($key,$value) = each(%{$newenv})) {
(&GDBM_WRITER()\|&GDBM_NOLOCK()),0640)) {	$disk_env{$key} = $value;
while (my ($key,$value) = each(%{$newenv})) {	}
$disk_env{$key} = $value;	untie(%disk_env);
}
untie(%disk_env);
}
}	}
}	}
return 'ok';	return 'ok';
Line 898 sub userload {	Line 816 sub userload {
while ($filename=readdir(LONIDS)) {	while ($filename=readdir(LONIDS)) {
next if ($filename eq '.' \|\| $filename eq '..');	next if ($filename eq '.' \|\| $filename eq '..');
next if ($filename =~ /publicuser_\d+\.id/);	next if ($filename =~ /publicuser_\d+\.id/);
next if ($filename =~ /^[a-f0-9]+_linked\.id$/);
my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];	my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
if ($curtime-$mtime < 1800) { $numusers++; }	if ($curtime-$mtime < 1800) { $numusers++; }
}	}
Line 932 sub spareserver {	Line 849 sub spareserver {
if (ref($spareshash) eq 'HASH') {	if (ref($spareshash) eq 'HASH') {
if (ref($spareshash->{'primary'}) eq 'ARRAY') {	if (ref($spareshash->{'primary'}) eq 'ARRAY') {
foreach my $try_server (@{ $spareshash->{'primary'} }) {	foreach my $try_server (@{ $spareshash->{'primary'} }) {
next unless (&spare_can_host($udom,$uint_dom,$remotesessions,	if ($uint_dom) {
$try_server));	next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
	$try_server));
	}
($spare_server, $lowest_load) =	($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);	&compare_server_load($try_server, $spare_server, $lowest_load);
}	}
Line 944 sub spareserver {	Line 863 sub spareserver {
if (!$found_server) {	if (!$found_server) {
if (ref($spareshash->{'default'}) eq 'ARRAY') {	if (ref($spareshash->{'default'}) eq 'ARRAY') {
foreach my $try_server (@{ $spareshash->{'default'} }) {	foreach my $try_server (@{ $spareshash->{'default'} }) {
next unless (&spare_can_host($udom,$uint_dom,	if ($uint_dom) {
$remotesessions,$try_server));	next unless (&spare_can_host($udom,$uint_dom,
	$remotesessions,$try_server));
	}
($spare_server, $lowest_load) =	($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);	&compare_server_load($try_server, $spare_server, $lowest_load);
}	}
Line 954 sub spareserver {	Line 875 sub spareserver {
}	}

if (!$want_server_name) {	if (!$want_server_name) {
	my $protocol = 'http';
	if ($protocol{$spare_server} eq 'https') {
	$protocol = $protocol{$spare_server};
	}
if (defined($spare_server)) {	if (defined($spare_server)) {
my $hostname = &hostname($spare_server);	my $hostname = &hostname($spare_server);
if (defined($hostname)) {	if (defined($hostname)) {
my $protocol = 'http';
if ($protocol{$spare_server} eq 'https') {
$protocol = $protocol{$spare_server};
}
$spare_server = $protocol.'://'.$hostname;	$spare_server = $protocol.'://'.$hostname;
}	}
}	}
Line 1027 sub find_existing_session {	Line 948 sub find_existing_session {
return;	return;
}	}

# check if user's browser sent load balancer cookie and server still has session
# and is not overloaded.
sub check_for_balancer_cookie {
my ($r,$update_mtime) = @_;
my ($otherserver,$cookie);
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
if (exists($cookies{'balanceID'})) {
my $balid = $cookies{'balanceID'};
$cookie=&LONCAPA::clean_handle($balid->value);
my $balancedir=$r->dir_config('lonBalanceDir');
if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) {
if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) {
my ($possudom,$possuname) = ($1,$2);
my $has_session = 0;
if ((&domain($possudom) ne '') &&
(&homeserver($possuname,$possudom) ne 'no_host')) {
my $try_server;
my $opened = open(my $idf,'+<',"$balancedir/$cookie.id");
if ($opened) {
flock($idf,LOCK_SH);
while (my $line = <$idf>) {
chomp($line);
if (&hostname($line) ne '') {
$try_server = $line;
last;
}
}
close($idf);
if (($try_server) &&
(&has_user_session($try_server,$possudom,$possuname))) {
my $lowest_load = 30000;
($otherserver,$lowest_load) =
&compare_server_load($try_server,undef,$lowest_load);
if ($otherserver ne '' && $lowest_load < 100) {
$has_session = 1;
} else {
undef($otherserver);
}
}
}
}
if ($has_session) {
if ($update_mtime) {
my $atime = my $mtime = time;
utime($atime,$mtime,"$balancedir/$cookie.id");
}
} else {
unlink("$balancedir/$cookie.id");
}
}
}
}
return ($otherserver,$cookie);
}

sub delbalcookie {
my ($cookie,$balancer) =@_;
if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
my ($udom,$uname) = ($1,$2);
my $uprimary_id = &domain($udom,'primary');
my $uintdom = &internet_dom($uprimary_id);
my $intdom = &internet_dom($balancer);
my $serverhomedom = &host_domain($balancer);
if (($uintdom ne '') && ($uintdom eq $intdom)) {
return &reply("delbalcookie:$cookie",$balancer);
}
}
}

# -------------------------------- ask if server already has a session for user	# -------------------------------- ask if server already has a session for user
sub has_user_session {	sub has_user_session {
my ($lonid,$udom,$uname) = @_;	my ($lonid,$udom,$uname) = @_;
Line 1109 sub has_user_session {	Line 961 sub has_user_session {
# --------- determine least loaded server in a user's domain which allows login	# --------- determine least loaded server in a user's domain which allows login

sub choose_server {	sub choose_server {
my ($udom,$checkloginvia,$required,$skiploadbal) = @_;	my ($udom,$checkloginvia,$required) = @_;
my %domconfhash = &Apache::loncommon::get_domainconf($udom);	my %domconfhash = &Apache::loncommon::get_domainconf($udom);
my %servers = &get_servers($udom);	my %servers = &get_servers($udom);
my $lowest_load = 30000;	my $lowest_load = 30000;
my ($login_host,$hostname,$portal_path,$isredirect,$balancers);	my ($login_host,$hostname,$portal_path,$isredirect);
if ($skiploadbal) {
($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
unless (defined($cached)) {
my $cachetime = 606024;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
$cachetime);
}
}
}
foreach my $lonhost (keys(%servers)) {	foreach my $lonhost (keys(%servers)) {
my $loginvia;	my $loginvia;
if ($skiploadbal) {
if (ref($balancers) eq 'HASH') {
next if (exists($balancers->{$lonhost}));
}
}
if ($checkloginvia) {	if ($checkloginvia) {
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};	$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
if ($loginvia) {	if ($loginvia) {
Line 1159 sub choose_server {	Line 994 sub choose_server {
if ($login_host ne '') {	if ($login_host ne '') {
$hostname = &hostname($login_host);	$hostname = &hostname($login_host);
}	}
return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);	return ($login_host,$hostname,$portal_path,$isredirect);
}

sub get_course_sessions {
my ($cnum,$cdom,$lastactivity) = @_;
my %servers = &internet_dom_servers($cdom);
my %returnhash;
foreach my $server (sort(keys(%servers))) {
my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server);
my @pairs=split(/\&/,$rep);
unless (($rep eq 'unknown_cmd') \|\| ($rep =~ /^error/)) {
foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);
$key = &unescape($key);
next if ($key =~ /^error: 2 /);
if (exists($returnhash{$key})) {
next if ($value < $returnhash{$key});
}
$returnhash{$key}=$value;
}
}
}
return %returnhash;
}	}

# --------------------------------------------- Try to change a user's password	# --------------------------------------------- Try to change a user's password
Line 1219 sub changepass {	Line 1032 sub changepass {
} elsif ($answer =~ "invalid_client") {	} elsif ($answer =~ "invalid_client") {
&logthis("$server refused to change $uname in $udom password because ".	&logthis("$server refused to change $uname in $udom password because ".
"it was a reset by e-mail originating from an invalid server.");	"it was a reset by e-mail originating from an invalid server.");
} elsif ($answer =~ "^prioruse") {
&logthis("$server refused to change $uname in $udom password because ".
"the password had been used before");
}	}
return $answer;	return $answer;
}	}
Line 1351 sub can_host_session {	Line 1161 sub can_host_session {
sub spare_can_host {	sub spare_can_host {
my ($udom,$uint_dom,$remotesessions,$try_server)=@_;	my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
my $canhost=1;	my $canhost=1;
my $try_server_hostname = &hostname($try_server);	my @intdoms;
my $serverhomeID = &get_server_homeID($try_server_hostname);	my $internet_names = &Apache::lonnet::get_internet_names($try_server);
my $serverhomedom = &host_domain($serverhomeID);	if (ref($internet_names) eq 'ARRAY') {
my %defdomdefaults = &get_domain_defaults($serverhomedom);	@intdoms = @{$internet_names};
if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {	}
if ($defdomdefaults{'offloadnow'}{$try_server}) {	unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
$canhost = 0;	my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
}	my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
}	my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
if (($canhost) && ($uint_dom)) {	my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
my @intdoms;	$canhost = &can_host_session($udom,$try_server,$remoterev,
my $internet_names = &get_internet_names($try_server);	$remotesessions,
if (ref($internet_names) eq 'ARRAY') {	$defdomdefaults{'hostedsessions'});
@intdoms = @{$internet_names};
}
unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
my $remoterev = &get_server_loncaparev(undef,$try_server);
$canhost = &can_host_session($udom,$try_server,$remoterev,
$remotesessions,
$defdomdefaults{'hostedsessions'});
}
}	}
return $canhost;	return $canhost;
}	}
Line 1456 sub get_lonbalancer_config {	Line 1258 sub get_lonbalancer_config {
}	}

sub check_loadbalancing {	sub check_loadbalancing {
my ($uname,$udom,$caller) = @_;	my ($uname,$udom) = @_;
my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,	my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
$rule_in_effect,$offloadto,$otherserver,$setcookie);	$rule_in_effect,$offloadto,$otherserver);
my $lonhost = $perlvar{'lonHostID'};	my $lonhost = $perlvar{'lonHostID'};
my @hosts = &current_machine_ids();	my @hosts = &current_machine_ids();
my $uprimary_id = &Apache::lonnet::domain($udom,'primary');	my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);	my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
my $intdom = &Apache::lonnet::internet_dom($lonhost);	my $intdom = &Apache::lonnet::internet_dom($lonhost);
my $serverhomedom = &host_domain($lonhost);	my $serverhomedom = &host_domain($lonhost);
my $domneedscache;
my $cachetime = 606024;	my $cachetime = 606024;

if (($uintdom ne '') && ($uintdom eq $intdom)) {	if (($uintdom ne '') && ($uintdom eq $intdom)) {
Line 1480 sub check_loadbalancing {	Line 1282 sub check_loadbalancing {
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);	&Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {	if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);	$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
} else {
$domneedscache = $dom_in_use;
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1540 sub check_loadbalancing {	Line 1340 sub check_loadbalancing {
my %domconfig =	my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);	&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {	if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);	$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
} else {
$domneedscache = $serverhomedom;
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1562 sub check_loadbalancing {	Line 1360 sub check_loadbalancing {
$is_balancer = 1;	$is_balancer = 1;
$offloadto = &this_host_spares($dom_in_use);	$offloadto = &this_host_spares($dom_in_use);
}	}
unless (defined($cached)) {
$domneedscache = $serverhomedom;
}
}	}
} else {	} else {
if ($perlvar{'lonBalancer'} eq 'yes') {	if ($perlvar{'lonBalancer'} eq 'yes') {
$is_balancer = 1;	$is_balancer = 1;
$offloadto = &this_host_spares($dom_in_use);	$offloadto = &this_host_spares($dom_in_use);
}	}
unless (defined($cached)) {
$domneedscache = $serverhomedom;
}
}
if ($domneedscache) {
&do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
}	}
if ($is_balancer) {	if ($is_balancer) {
my $lowest_load = 30000;	my $lowest_load = 30000;
Line 1607 sub check_loadbalancing {	Line 1396 sub check_loadbalancing {
}	}
}	}
}	}
unless ($caller eq 'login') {	if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {	$is_balancer = 0;
$is_balancer = 0;	if ($uname ne '' && $udom ne '') {
if ($uname ne '' && $udom ne '') {	if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
&appenv({'user.loadbalexempt' => $lonhost,	&appenv({'user.loadbalexempt' => $lonhost,
'user.loadbalcheck.time' => time});	'user.loadbalcheck.time' => time});
}
}	}
}	}
}	}
unless ($homeintdom) {
undef($setcookie);
}
}	}
return ($is_balancer,$otherserver,$setcookie);	return ($is_balancer,$otherserver);
}	}

sub check_balancer_result {	sub check_balancer_result {
my ($result,@hosts) = @_;	my ($result,@hosts) = @_;
my ($is_balancer,$currtargets,$currrules,$setcookie);	my ($is_balancer,$currtargets,$currrules);
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
if ($result->{'lonhost'} ne '') {	if ($result->{'lonhost'} ne '') {
my $currbalancer = $result->{'lonhost'};	my $currbalancer = $result->{'lonhost'};
Line 1643 sub check_balancer_result {	Line 1428 sub check_balancer_result {
$is_balancer = 1;	$is_balancer = 1;
$currrules = $result->{$key}{'rules'};	$currrules = $result->{$key}{'rules'};
$currtargets = $result->{$key}{'targets'};	$currtargets = $result->{$key}{'targets'};
$setcookie = $result->{$key}{'cookie'};
last;	last;
}	}
}	}
}	}
}	}
return ($is_balancer,$currtargets,$currrules,$setcookie);	return ($is_balancer,$currtargets,$currrules);
}	}

sub get_loadbalancer_targets {	sub get_loadbalancer_targets {
Line 1754 sub idget {	Line 1538 sub idget {

my %servers = &get_servers($udom,'library');	my %servers = &get_servers($udom,'library');
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
my $idlist=join('&', map { &escape($_); } @ids);	my $idlist=join('&',@ids);
$idlist=~tr/A-Z/a-z/;	$idlist=~tr/A-Z/a-z/;
my $reply=&reply("idget:$udom:".$idlist,$tryserver);	my $reply=&reply("idget:$udom:".$idlist,$tryserver);
my @answer=();	my @answer=();
Line 1764 sub idget {	Line 1548 sub idget {
my $i;	my $i;
for ($i=0;$i<=$#ids;$i++) {	for ($i=0;$i<=$#ids;$i++) {
if ($answer[$i]) {	if ($answer[$i]) {
$returnhash{$ids[$i]}=&unescape($answer[$i]);	$returnhash{$ids[$i]}=$answer[$i];
}	}
}	}
}	}
Line 1806 sub idput {	Line 1590 sub idput {
}	}
}	}

# ---------------------------------------- Delete unwanted IDs from ids.db file	# ---------------------------------------- Delete unwanted IDs from ids.db file

sub iddel {	sub iddel {
my ($udom,$idshashref,$uhome)=@_;	my ($udom,$idshashref,$uhome)=@_;
Line 1851 sub dump_dom {	Line 1635 sub dump_dom {

sub get_dom {	sub get_dom {
my ($namespace,$storearr,$udom,$uhome)=@_;	my ($namespace,$storearr,$udom,$uhome)=@_;
return if ($udom eq 'public');
my $items='';	my $items='';
foreach my $item (@$storearr) {	foreach my $item (@$storearr) {
$items.=&escape($item).'&';	$items.=&escape($item).'&';
Line 1859 sub get_dom {	Line 1642 sub get_dom {
$items=~s/\&$//;	$items=~s/\&$//;
if (!$udom) {	if (!$udom) {
$udom=$env{'user.domain'};	$udom=$env{'user.domain'};
return if ($udom eq 'public');
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
$uhome=&domain($udom,'primary');	$uhome=&domain($udom,'primary');
} else {	} else {
Line 1993 sub retrieve_inst_usertypes {	Line 1775 sub retrieve_inst_usertypes {

sub is_domainimage {	sub is_domainimage {
my ($url) = @_;	my ($url) = @_;
if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo)/+[^/]-) {	if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo)/+-) {
if (&domain($1) ne '') {	if (&domain($1) ne '') {
return '1';	return '1';
}	}
Line 2008 sub inst_directory_query {	Line 1790 sub inst_directory_query {
my $homeserver = &domain($udom,'primary');	my $homeserver = &domain($udom,'primary');
my $outcome;	my $outcome;
if ($homeserver ne '') {	if ($homeserver ne '') {
unless ($homeserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($udom,$homeserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);
if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|
(($major == 2) && ($minor == 11) && ($subver < 3))) {
return;
}
}
}
my $queryid=&reply("querysend:instdirsearch:".	my $queryid=&reply("querysend:instdirsearch:".
&escape($srch->{'srchby'}).':'.	&escape($srch->{'srchby'}).':'.
&escape($srch->{'srchterm'}).':'.	&escape($srch->{'srchterm'}).':'.
&escape($srch->{'srchtype'}),$homeserver);	&escape($srch->{'srchtype'}),$homeserver);
my $host=&hostname($homeserver);	my $host=&hostname($homeserver);
if ($queryid !~/^\Q$host\E\_/) {	if ($queryid !~/^\Q$host\E\_/) {
&logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);	&logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
return;	return;
}	}
my $response = &get_query_reply($queryid);	my $response = &get_query_reply($queryid);
Line 2060 sub usersearch {	Line 1831 sub usersearch {
my $query = 'usersearch';	my $query = 'usersearch';
foreach my $tryserver (keys(%libserv)) {	foreach my $tryserver (keys(%libserv)) {
if (&host_domain($tryserver) eq $dom) {	if (&host_domain($tryserver) eq $dom) {
unless ($tryserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($dom,$tryserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);
next if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|
(($major == 2) && ($minor == 11) && ($subver < 3)));
}
}
my $host=&hostname($tryserver);	my $host=&hostname($tryserver);
my $queryid=	my $queryid=
&reply("querysend:".&escape($query).':'.	&reply("querysend:".&escape($query).':'.
Line 2154 sub get_instuser {	Line 1916 sub get_instuser {
return ($outcome,%userinfo);	return ($outcome,%userinfo);
}	}

sub get_multiple_instusers {
my ($udom,$users,$caller) = @_;
my ($outcome,$results);
if (ref($users) eq 'HASH') {
my $count = keys(%{$users});
my $requested = &freeze_escape($users);
my $homeserver = &domain($udom,'primary');
if ($homeserver ne '') {
my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
my $host=&hostname($homeserver);
if ($queryid !~/^\Q$host\E\_/) {
&logthis('get_multiple_instusers invalid queryid: '.$queryid.
' for host: '.$homeserver.'in domain '.$udom);
return ($outcome,$results);
}
my $response = &get_query_reply($queryid);
my $maxtries = 5;
if ($count > 100) {
$maxtries = 1+int($count/20);
}
my $tries = 1;
while (($response=~/^timeout/) && ($tries <= $maxtries)) {
$response = &get_query_reply($queryid);
$tries ++;
}
if ($response eq '') {
$results = {};
foreach my $key (keys(%{$users})) {
my ($uname,$id);
if ($caller eq 'id') {
$id = $key;
} else {
$uname = $key;
}
my ($resp,%info) = &get_instuser($udom,$uname,$id);
$outcome = $resp;
if ($resp eq 'ok') {
%{$results} = (%{$results}, %info);
} else {
last;
}
}
} elsif(!&error($response) && ($response ne 'refused')) {
if (($response eq 'unavailable') \|\| ($response eq 'invalid') \|\| ($response eq 'timeout')) {
$outcome = $response;
} else {
($outcome,my $userdata) = split(/=/,$response,2);
if ($outcome eq 'ok') {
$results = &thaw_unescape($userdata);
}
}
}
}
}
return ($outcome,$results);
}

sub inst_rulecheck {	sub inst_rulecheck {
my ($udom,$uname,$id,$item,$rules) = @_;	my ($udom,$uname,$id,$item,$rules) = @_;
my %returnhash;	my %returnhash;
Line 2306 sub get_domain_defaults {	Line 2011 sub get_domain_defaults {
&Apache::lonnet::get_dom('configuration',['defaults','quotas',	&Apache::lonnet::get_dom('configuration',['defaults','quotas',
'requestcourses','inststatus',	'requestcourses','inststatus',
'coursedefaults','usersessions',	'coursedefaults','usersessions',
'requestauthor','selfenrollment',	'requestauthor','selfenrollment'],$domain);
'coursecategories','autoenroll',
'helpsettings'],$domain);
my @coursetypes = ('official','unofficial','community','textbook');	my @coursetypes = ('official','unofficial','community','textbook');
if (ref($domconfig{'defaults'}) eq 'HASH') {	if (ref($domconfig{'defaults'}) eq 'HASH') {
$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};	$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
Line 2317 sub get_domain_defaults {	Line 2020 sub get_domain_defaults {
$domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};	$domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
$domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};	$domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
$domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};	$domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
$domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
$domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
$domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
} else {	} else {
$domdefaults{'lang_def'} = &domain($domain,'lang_def');	$domdefaults{'lang_def'} = &domain($domain,'lang_def');
$domdefaults{'auth_def'} = &domain($domain,'auth_def');	$domdefaults{'auth_def'} = &domain($domain,'auth_def');
Line 2355 sub get_domain_defaults {	Line 2055 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'coursedefaults'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};	$domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
}
foreach my $type (@coursetypes) {	foreach my $type (@coursetypes) {
if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
unless ($type eq 'community') {	unless ($type eq 'community') {
Line 2369 sub get_domain_defaults {	Line 2065 sub get_domain_defaults {
if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
$domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};	$domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
}	}
if ($domdefaults{'postsubmit'} eq 'on') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
$domdefaults{$type.'postsubtimeout'} =
$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
}
}
}
if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
if (@clonecodes) {
$domdefaults{'canclone'} = join('+',@clonecodes);
}
}
} elsif ($domconfig{'coursedefaults'}{'canclone'}) {
$domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
}
if ($domconfig{'coursedefaults'}{'texengine'}) {
$domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
}	}
}	}
if (ref($domconfig{'usersessions'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}) eq 'HASH') {
Line 2397 sub get_domain_defaults {	Line 2074 sub get_domain_defaults {
if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};	$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
}	}
if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
$domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
}
}	}
if (ref($domconfig{'selfenrollment'}) eq 'HASH') {	if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {	if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
Line 2429 sub get_domain_defaults {	Line 2103 sub get_domain_defaults {
}	}
}	}
}	}
if (ref($domconfig{'coursecategories'}) eq 'HASH') {
$domdefaults{'catauth'} = 'std';
$domdefaults{'catunauth'} = 'std';
if ($domconfig{'coursecategories'}{'auth'}) {
$domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
}
if ($domconfig{'coursecategories'}{'unauth'}) {
$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
}
}
if (ref($domconfig{'autoenroll'}) eq 'HASH') {
$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
}
if (ref($domconfig{'helpsettings'}) eq 'HASH') {
$domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
$domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
}
}
&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
}	}

sub get_dom_cats {
my ($dom) = @_;
return unless (&domain($dom));
my ($cats,$cached)=&is_cached_new('cats',$dom);
unless (defined($cached)) {
my %domconfig = &get_dom('configuration',['coursecategories'],$dom);
if (ref($domconfig{'coursecategories'}) eq 'HASH') {
if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {
%{$cats} = %{$domconfig{'coursecategories'}{'cats'}};
} else {
$cats = {};
}
} else {
$cats = {};
}
&Apache::lonnet::do_cache_new('cats',$dom,$cats,3600);
}
return $cats;
}

sub get_dom_instcats {
my ($dom) = @_;
return unless (&domain($dom));
my ($instcats,$cached)=&is_cached_new('instcats',$dom);
unless (defined($cached)) {
my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order);
my $totcodes = &retrieve_instcodes(\%coursecodes,$dom);
if ($totcodes > 0) {
my $caller = 'global';
if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes,
\@codetitles,\%cat_titles,\%cat_order) eq 'ok') {
$instcats = {
codes => \%codes,
codetitles => \@codetitles,
cat_titles => \%cat_titles,
cat_order => \%cat_order,
};
&do_cache_new('instcats',$dom,$instcats,3600);
}
}
}
return $instcats;
}

sub retrieve_instcodes {
my ($coursecodes,$dom) = @_;
my $totcodes;
my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course');
foreach my $course (keys(%courses)) {
if (ref($courses{$course}) eq 'HASH') {
if ($courses{$course}{'inst_code'} ne '') {
$$coursecodes{$course} = $courses{$course}{'inst_code'};
$totcodes ++;
}
}
}
return $totcodes;
}

# --------------------------------------------- Get domain config for passwords

sub get_passwdconf {
my ($dom) = @_;
my (%passwdconf,$gotconf,$lookup);
my ($result,$cached)=&is_cached_new('passwdconf',$dom);
if (defined($cached)) {
if (ref($result) eq 'HASH') {
%passwdconf = %{$result};
$gotconf = 1;
}
}
unless ($gotconf) {
my %domconfig = &get_dom('configuration',['passwords'],$dom);
if (ref($domconfig{'passwords'}) eq 'HASH') {
%passwdconf = %{$domconfig{'passwords'}};
}
my $cachetime = 246060;
&do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
}
return %passwdconf;
}

# --------------------------------------------------- Assign a key to a student	# --------------------------------------------------- Assign a key to a student

sub assign_access_key {	sub assign_access_key {
Line 2770 sub make_key {	Line 2343 sub make_key {
sub devalidate_cache_new {	sub devalidate_cache_new {
my ($name,$id,$debug) = @_;	my ($name,$id,$debug) = @_;
if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }	if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
my $remembered_id=$name.':'.$id;
$id=&make_key($name,$id);	$id=&make_key($name,$id);
$memcache->delete($id);	$memcache->delete($id);
delete($remembered{$remembered_id});	delete($remembered{$id});
delete($accessed{$remembered_id});	delete($accessed{$id});
}	}

sub is_cached_new {	sub is_cached_new {
my ($name,$id,$debug) = @_;	my ($name,$id,$debug) = @_;
my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) for	$id=&make_key($name,$id);
# keys in %remembered hash, which persists for	if (exists($remembered{$id})) {
# duration of request (no restriction on key length).	if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
if (exists($remembered{$remembered_id})) {	$accessed{$id}=[&gettimeofday()];
if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
$accessed{$remembered_id}=[&gettimeofday()];
$hits++;	$hits++;
return ($remembered{$remembered_id},1);	return ($remembered{$id},1);
}	}
$id=&make_key($name,$id);
my $value = $memcache->get($id);	my $value = $memcache->get($id);
if (!(defined($value))) {	if (!(defined($value))) {
if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
Line 2798 sub is_cached_new {	Line 2367 sub is_cached_new {
if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
$value=undef;	$value=undef;
}	}
&make_room($remembered_id,$value,$debug);	&make_room($id,$value,$debug);
if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
return ($value,1);	return ($value,1);
}	}

sub do_cache_new {	sub do_cache_new {
my ($name,$id,$value,$time,$debug) = @_;	my ($name,$id,$value,$time,$debug) = @_;
my $remembered_id=$name.':'.$id;
$id=&make_key($name,$id);	$id=&make_key($name,$id);
my $setvalue=$value;	my $setvalue=$value;
if (!defined($setvalue)) {	if (!defined($setvalue)) {
Line 2821 sub do_cache_new {	Line 2389 sub do_cache_new {
$memcache->disconnect_all();	$memcache->disconnect_all();
}	}
# need to make a copy of $value	# need to make a copy of $value
&make_room($remembered_id,$value,$debug);	&make_room($id,$value,$debug);
return $value;	return $value;
}	}

sub make_room {	sub make_room {
my ($remembered_id,$value,$debug)=@_;	my ($id,$value,$debug)=@_;

$remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)	$remembered{$id}= (ref($value)) ? &Storable::dclone($value)
: $value;	: $value;
if ($to_remember<0) { return; }	if ($to_remember<0) { return; }
$accessed{$remembered_id}=[&gettimeofday()];	$accessed{$id}=[&gettimeofday()];
if (scalar(keys(%remembered)) <= $to_remember) { return; }	if (scalar(keys(%remembered)) <= $to_remember) { return; }
my $to_kick;	my $to_kick;
my $max_time=0;	my $max_time=0;
Line 3069 sub repcopy {	Line 2637 sub repcopy {
}	}
}	}

# ------------------------------------------------- Unsubscribe from a resource

sub unsubscribe {
my ($fname) = @_;
my $answer;
if ($fname=~/\/(aboutme\|syllabus\|bulletinboard\|smppg)$/) { return $answer; }
$fname=~s/[\n\r]//g;
my $author=$fname;
$author=~s/\/home\/httpd\/html\/res\/([^\/])\/([^\/]).*/$1\/$2/;
my ($udom,$uname)=split(/\//,$author);
my $home=homeserver($uname,$udom);
if ($home eq 'no_host') {
$answer = 'no_host';
} elsif (grep { $_ eq $home } &current_machine_ids()) {
$answer = 'home';
} else {
$answer = reply("unsub:$fname",$home);
}
return $answer;
}

# ------------------------------------------------ Get server side include body	# ------------------------------------------------ Get server side include body
sub ssi_body {	sub ssi_body {
my ($filelink,%form)=@_;	my ($filelink,%form)=@_;
Line 3139 sub absolute_url {	Line 2686 sub absolute_url {
sub ssi {	sub ssi {

my ($fn,%form)=@_;	my ($fn,%form)=@_;
my ($request,$response);	my $ua=new LWP::UserAgent;
	my $request;

$form{'no_update_last_known'}=1;	$form{'no_update_last_known'}=1;
&Apache::lonenc::check_encrypt(\$fn);	&Apache::lonenc::check_encrypt(\$fn);
if (%form) {	if (%form) {
$request=new HTTP::Request('POST',&absolute_url().$fn);	$request=new HTTP::Request('POST',&absolute_url().$fn);
$request->content(join('&',map {	$request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
my $name = escape($_);
"$name=" . ( ref($form{$_}) eq 'ARRAY'
? join("&$name=", map {escape($_) } @{$form{$_}})
: &escape($form{$_}) );
} keys(%form)));
} else {	} else {
$request=new HTTP::Request('GET',&absolute_url().$fn);	$request=new HTTP::Request('GET',&absolute_url().$fn);
}	}

$request->header(Cookie => $ENV{'HTTP_COOKIE'});	$request->header(Cookie => $ENV{'HTTP_COOKIE'});
	my $response= $ua->request($request);
	my $content = $response->content;


if (($env{'request.course.id'}) &&
($form{'grade_courseid'} eq $env{'request.course.id'}) &&
($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
($form{'grade_symb'} ne '') &&
(&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
if (LWP::UserAgent->VERSION >= 5.834) {
my $ua=new LWP::UserAgent;
$ua->local_address('127.0.0.1');
$response = $ua->request($request);
} else {
{
require LWP::Protocol::http;
local @LWP::Protocol::http::EXTRA_SOCK_OPTS = (LocalAddr => '127.0.0.1');
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
@LWP::Protocol::http::EXTRA_SOCK_OPTS = ();
}
}
} else {
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
}
if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($content, $response);
} else {	} else {
return $response->content;	return $content;
}	}
}	}

Line 3199 sub externalssi {	Line 2722 sub externalssi {
}	}
}	}

# If the local copy of a replicated resource is outdated, trigger a
# connection from the homeserver to flush the delayed queue. If no update
# happens, remove local copies of outdated resource (and corresponding
# metadata file).

sub remove_stale_resfile {
my ($url) = @_;
my $removed;
if ($url=~m{^/res/($match_domain)/($match_username)/}) {
my $audom = $1;
my $auname = $2;
unless (($url =~ /\.\d+\.\w+$/) \|\| ($url =~ m{^/res/lib/templates/})) {
my $homeserver = &homeserver($auname,$audom);
unless (($homeserver eq 'no_host') \|\|
(grep { $_ eq $homeserver } &current_machine_ids())) {
my $fname = &filelocation('',$url);
if (-e $fname) {
my $hostname = &hostname($homeserver);
if ($hostname) {
my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');
my $uri = $protocol.'://'.$hostname.'/raw/'.&declutter($url);
my $ua=new LWP::UserAgent;
$ua->timeout(5);
my $request=new HTTP::Request('HEAD',$uri);
my $response=$ua->request($request);
if ($response->is_success()) {
my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
my $locmodtime = (stat($fname))[9];
if ($locmodtime < $remmodtime) {
my $stale;
my $answer = &reply('pong',$homeserver);
if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
sleep(0.2);
$locmodtime = (stat($fname))[9];
if ($locmodtime < $remmodtime) {
my $posstransfer = $fname.'.in.transfer';
if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
$removed = 1;
} else {
$stale = 1;
}
} else {
$removed = 1;
}
} else {
$stale = 1;
}
if ($stale) {
if (unlink($fname)) {
if ($uri!~/\.meta$/) {
if (-e $fname.'.meta') {
unlink($fname.'.meta');
}
}
my $unsubresult = &unsubscribe($fname);
unless ($unsubresult eq 'ok') {
&logthis("no unsub of $fname from $homeserver, reason: $unsubresult");
}
$removed = 1;
}
}
}
}
}
}
}
}
}
return $removed;
}

# -------------------------------- Allow a /uploaded/ URI to be vouched for	# -------------------------------- Allow a /uploaded/ URI to be vouched for

sub allowuploaded {	sub allowuploaded {
Line 3287 sub allowuploaded {	Line 2738 sub allowuploaded {
#	#
# Determine if the current user should be able to edit a particular resource,	# Determine if the current user should be able to edit a particular resource,
# when viewing in course context.	# when viewing in course context.
# (a) When viewing resource used to determine if "Edit" item is included in	# (a) When viewing resource used to determine if "Edit" item is included in
# Functions.	# Functions.
# (b) When displaying folder contents in course editor, used to determine if	# (b) When displaying folder contents in course editor, used to determine if
# "Edit" link will be displayed alongside resource.	# "Edit" link will be displayed alongside resource.
Line 3295 sub allowuploaded {	Line 2746 sub allowuploaded {
# input: six args -- filename (decluttered), course number, course domain,	# input: six args -- filename (decluttered), course number, course domain,
# url, symb (if registered) and group (if this is a group	# url, symb (if registered) and group (if this is a group
# item -- e.g., bulletin board, group page etc.).	# item -- e.g., bulletin board, group page etc.).
# output: array of five scalars --	# output: array of five scalars --
# $cfile -- url for file editing if editable on current server	# $cfile -- url for file editing if editable on current server
# $home -- homeserver of resource (i.e., for author if published,	# $home -- homeserver of resource (i.e., for author if published,
# or course if uploaded.).	# or course if uploaded.).
# $switchserver -- 1 if server switch will be needed.	# $switchserver -- 1 if server switch will be needed.
# $forceedit -- 1 if icon/link should be to go to edit mode	# $forceedit -- 1 if icon/link should be to go to edit mode
# $forceview -- 1 if icon/link should be to go to view mode	# $forceview -- 1 if icon/link should be to go to view mode
#	#

Line 3389 sub can_edit_resource {	Line 2840 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl ne '') && (&is_on_map($resurl))) {	} elsif (($resurl ne '') && (&is_on_map($resurl))) {
if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg\|bulletinboard$}) {	if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg\|bulletinboard$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3409 sub can_edit_resource {	Line 2860 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) {
my ($map,$id,$res) = &decode_symb($symb);
if ($map =~ /\.page$/) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
$cfile = $map;
} else {
$forceedit = 1;
$cfile = '/adm/wrapper'.$resurl;
}
}
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3432 sub can_edit_resource {	Line 2871 sub can_edit_resource {
}	}
} elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {	} elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
my $template = '/res/lib/templates/simpleproblem.problem';	my $template = '/res/lib/templates/simpleproblem.problem';
if (&is_on_map($template)) {	if (&is_on_map($template)) {
$incourse = 1;	$incourse = 1;
$forceview = 1;	$forceview = 1;
$cfile = $template;	$cfile = $template;
}	}
} elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {	} elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
$forceview = 1;	$forceview = 1;
} else {	} else {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl eq '/adm/extresedit') && ($symb \|\| $env{'form.folderpath'})) {	} elsif (($resurl eq '/adm/extresedit') && ($symb \|\| $env{'form.folderpath'})) {
$incourse = 1;	$incourse = 1;
$forceview = 1;	$forceview = 1;
Line 3479 sub can_edit_resource {	Line 2918 sub can_edit_resource {
$cfile=$file;	$cfile=$file;
}	}
}	}
if (($cfile ne '') && (!$incourse \|\| $uploaded) &&	if (($cfile ne '') && (!$incourse \|\| $uploaded) &&
(($home ne '') && ($home ne 'no_host'))) {	(($home ne '') && ($home ne 'no_host'))) {
my @ids=&current_machine_ids();	my @ids=&current_machine_ids();
unless (grep(/^\Q$home\E$/,@ids)) {	unless (grep(/^\Q$home\E$/,@ids)) {
Line 3506 sub in_course {	Line 2945 sub in_course {
if ($hideprivileged) {	if ($hideprivileged) {
my $skipuser;	my $skipuser;
my %coursehash = &coursedescription($cdom.'_'.$cnum);	my %coursehash = &coursedescription($cdom.'_'.$cnum);
my @possdoms = ($cdom);	my @possdoms = ($cdom);
if ($coursehash{'checkforpriv'}) {	if ($coursehash{'checkforpriv'}) {
push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));	push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
}	}
if (&privileged($uname,$udom,\@possdoms)) {	if (&privileged($uname,$udom,\@possdoms)) {
$skipuser = 1;	$skipuser = 1;
Line 3611 sub process_coursefile {	Line 3050 sub process_coursefile {
$home);	$home);
}	}
} elsif ($action eq 'uploaddoc') {	} elsif ($action eq 'uploaddoc') {
open(my $fh,'>',$filepath.'/'.$fname);	open(my $fh,'>'.$filepath.'/'.$fname);
print $fh $env{'form.'.$source};	print $fh $env{'form.'.$source};
close($fh);	close($fh);
if ($parser eq 'parse') {	if ($parser eq 'parse') {
Line 3669 sub store_edited_file {	Line 3108 sub store_edited_file {
($fpath,$fname) = ($file =~ m\|^(.*)/([^/]+)$\|);	($fpath,$fname) = ($file =~ m\|^(.*)/([^/]+)$\|);
$fpath=$docudom.'/'.$docuname.'/'.$fpath;	$fpath=$docudom.'/'.$docuname.'/'.$fpath;
my $filepath = &build_filepath($fpath);	my $filepath = &build_filepath($fpath);
open(my $fh,'>',$filepath.'/'.$fname);	open(my $fh,'>'.$filepath.'/'.$fname);
print $fh $content;	print $fh $content;
close($fh);	close($fh);
my $home=&homeserver($docuname,$docudom);	my $home=&homeserver($docuname,$docudom);
Line 3694 sub clean_filename {	Line 3133 sub clean_filename {
}	}
# Replace spaces by underscores	# Replace spaces by underscores
$fname=~s/\s+/\_/g;	$fname=~s/\s+/\_/g;
# Transliterate non-ascii text to ascii
my $lang = &Apache::lonlocal::current_language();
$fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang);
# Replace all other weird characters by nothing	# Replace all other weird characters by nothing
$fname=~s{[^/\w\.\-]}{}g;	$fname=~s{[^/\w\.\-]}{}g;
# Replace all .\d. sequences with _\d. so they no longer look like version	# Replace all .\d. sequences with _\d. so they no longer look like version
Line 3704 sub clean_filename {	Line 3140 sub clean_filename {
$fname=~s/\.(\d+)(?=\.)/_$1/g;	$fname=~s/\.(\d+)(?=\.)/_$1/g;
return $fname;	return $fname;
}	}

# This Function checks if an Image's dimensions exceed either $resizewidth (width)	# This Function checks if an Image's dimensions exceed either $resizewidth (width)
# or $resizeheight (height) - both pixels. If so, the image is scaled to produce an	# or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
# image with the same aspect ratio as the original, but with dimensions which do	# image with the same aspect ratio as the original, but with dimensions which do
Line 3747 sub resizeImage {	Line 3182 sub resizeImage {
# input: $formname - the contents of the file are in $env{"form.$formname"}	# input: $formname - the contents of the file are in $env{"form.$formname"}
# the desired filename is in $env{"form.$formname.filename"}	# the desired filename is in $env{"form.$formname.filename"}
# $context - possible values: coursedoc, existingfile, overwrite,	# $context - possible values: coursedoc, existingfile, overwrite,
# canceloverwrite, scantron or ''.	# canceloverwrite, or ''.
# if 'coursedoc': upload to the current course	# if 'coursedoc': upload to the current course
# if 'existingfile': write file to tmp/overwrites directory	# if 'existingfile': write file to tmp/overwrites directory
# if 'canceloverwrite': delete file written to tmp/overwrites directory	# if 'canceloverwrite': delete file written to tmp/overwrites directory
# $context is passed as argument to &finishuserfileupload	# $context is passed as argument to &finishuserfileupload
# $subdir - directory in userfile to store the file into	# $subdir - directory in userfile to store the file into
# $parser - instruction to parse file for objects ($parser = parse) or	# $parser - instruction to parse file for objects ($parser = parse)
# if context is 'scantron', $parser is hashref of csv column mapping
# (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
# Section => 4, CODE => 5, FirstQuestion => 9 }).
# $allfiles - reference to hash for embedded objects	# $allfiles - reference to hash for embedded objects
# $codebase - reference to hash for codebase of java objects	# $codebase - reference to hash for codebase of java objects
# $desuname - username for permanent storage of uploaded file	# $desuname - username for permanent storage of uploaded file
Line 3779 sub userfileupload {	Line 3211 sub userfileupload {
$fname=&clean_filename($fname);	$fname=&clean_filename($fname);
# See if there is anything left	# See if there is anything left
unless ($fname) { return 'error: no uploaded file'; }	unless ($fname) { return 'error: no uploaded file'; }
# If filename now begins with a . prepend unix timestamp _ milliseconds
if ($fname =~ /^\./) {
my ($s,$usec) = &gettimeofday();
while (length($usec) < 6) {
$usec = '0'.$usec;
}
$fname = $s.'_'.substr($usec,0,3).$fname;
}
# Files uploaded to help request form, or uploaded to "create course" page are handled differently	# Files uploaded to help request form, or uploaded to "create course" page are handled differently
if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) \|\|	if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) \|\|
(($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) \|\|	(($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) \|\|
Line 3800 sub userfileupload {	Line 3224 sub userfileupload {
'_'.$env{'user.domain'}.'/pending';	'_'.$env{'user.domain'}.'/pending';
} elsif (($context eq 'existingfile') \|\| ($context eq 'canceloverwrite')) {	} elsif (($context eq 'existingfile') \|\| ($context eq 'canceloverwrite')) {
my ($docuname,$docudom);	my ($docuname,$docudom);
if ($destudom =~ /^$match_domain$/) {	if ($destudom) {
$docudom = $destudom;	$docudom = $destudom;
} else {	} else {
$docudom = $env{'user.domain'};	$docudom = $env{'user.domain'};
}	}
if ($destuname =~ /^$match_username$/) {	if ($destuname) {
$docuname = $destuname;	$docuname = $destuname;
} else {	} else {
$docuname = $env{'user.name'};	$docuname = $env{'user.name'};
Line 3835 sub userfileupload {	Line 3259 sub userfileupload {
mkdir($fullpath,0777);	mkdir($fullpath,0777);
}	}
}	}
open(my $fh,'>',$fullpath.'/'.$fname);	open(my $fh,'>'.$fullpath.'/'.$fname);
print $fh $env{'form.'.$formname};	print $fh $env{'form.'.$formname};
close($fh);	close($fh);
if ($context eq 'existingfile') {	if ($context eq 'existingfile') {
Line 3910 sub finishuserfileupload {	Line 3334 sub finishuserfileupload {

# Save the file	# Save the file
{	{
if (!open(FH,'>',$filepath.'/'.$file)) {	if (!open(FH,'>'.$filepath.'/'.$file)) {
&logthis('Failed to create '.$filepath.'/'.$file);	&logthis('Failed to create '.$filepath.'/'.$file);
print STDERR ('Failed to create '.$filepath.'/'.$file."\n");	print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
return '/adm/notfound.html';	return '/adm/notfound.html';
Line 3954 sub finishuserfileupload {	Line 3378 sub finishuserfileupload {
}	}
}	}
}	}
if (($context ne 'scantron') && ($parser eq 'parse')) {	if ($parser eq 'parse') {
if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {	if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
my $parse_result = &extract_embedded_items($filepath.'/'.$file,	my $parse_result = &extract_embedded_items($filepath.'/'.$file,
$allfiles,$codebase);	$allfiles,$codebase);
Line 3963 sub finishuserfileupload {	Line 3387 sub finishuserfileupload {
' for embedded media: '.$parse_result);	' for embedded media: '.$parse_result);
}	}
}	}
} elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) {
my $format = $env{'form.scantron_format'};
&bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format);
}	}
if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {	if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
my $input = $filepath.'/'.$file;	my $input = $filepath.'/'.$file;
my $output = $filepath.'/'.'tn-'.$file;	my $output = $filepath.'/'.'tn-'.$file;
my $thumbsize = $thumbwidth.'x'.$thumbheight;	my $thumbsize = $thumbwidth.'x'.$thumbheight;
my @args = ('convert','-sample',$thumbsize,$input,$output);	system("convert -sample $thumbsize $input $output");
system({$args[0]} @args);
if (-e $filepath.'/'.'tn-'.$file) {	if (-e $filepath.'/'.'tn-'.$file) {
$fetchthumb = 1;	$fetchthumb = 1;
}	}
Line 4031 sub extract_embedded_items {	Line 3451 sub extract_embedded_items {
}	}
if (lc($tagname) eq 'a') {	if (lc($tagname) eq 'a') {
unless (($attr->{'href'} =~ /^#/) \|\| ($attr->{'href'} eq '')) {	unless (($attr->{'href'} =~ /^#/) \|\| ($attr->{'href'} eq '')) {
&add_filetype($allfiles,$attr->{'href'},'href');	&add_filetype($allfiles,$attr->{'href'},'href');
}	}
}	}
if (lc($tagname) eq 'script') {	if (lc($tagname) eq 'script') {
Line 4206 sub embedded_dependency {	Line 3626 sub embedded_dependency {
return;	return;
}	}

sub bubblesheet_converter {
my ($cdom,$fullpath,$config,$format) = @_;
if ((&domain($cdom) ne '') &&
($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
(-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
my (%csvcols,%csvoptions);
if (ref($config->{'fields'}) eq 'HASH') {
%csvcols = %{$config->{'fields'}};
}
if (ref($config->{'options'}) eq 'HASH') {
%csvoptions = %{$config->{'options'}};
}
my %csvbynum = reverse(%csvcols);
my %scantronconf = &get_scantron_config($format,$cdom);
if (keys(%scantronconf)) {
my %bynum = (
$scantronconf{CODEstart} => 'CODEstart',
$scantronconf{IDstart} => 'IDstart',
$scantronconf{PaperID} => 'PaperID',
$scantronconf{FirstName} => 'FirstName',
$scantronconf{LastName} => 'LastName',
$scantronconf{Qstart} => 'Qstart',
);
my @ordered;
foreach my $item (sort { $a <=> $b } keys(%bynum)) {
push(@ordered,$bynum{$item});
}
my %mapstart = (
CODEstart => 'CODE',
IDstart => 'ID',
PaperID => 'PaperID',
FirstName => 'FirstName',
LastName => 'LastName',
Qstart => 'FirstQuestion',
);
my %maplength = (
CODEstart => 'CODElength',
IDstart => 'IDlength',
PaperID => 'PaperIDlength',
FirstName => 'FirstNamelength',
LastName => 'LastNamelength',
);
if (open(my $fh,'<',$fullpath)) {
my $output;
my %lettdig = &letter_to_digits();
my %diglett = reverse(%lettdig);
my $numletts = scalar(keys(%lettdig));
my $num = 0;
while (my $line=<$fh>) {
$num ++;
next if (($num == 1) && ($csvoptions{'hdr'} == 1));
$line =~ s{[\r\n]+$}{};
my %found;
my @values = split(/,/,$line);
my ($qstart,$record);
for (my $i=0; $i<@values; $i++) {
if ((($qstart ne '') && ($i > $qstart)) \|\|
($csvbynum{$i} eq 'FirstQuestion')) {
if ($values[$i] eq '') {
$values[$i] = $scantronconf{'Qoff'};
} elsif ($scantronconf{'Qon'} eq 'number') {
if ($values[$i] =~ /^[A-Ja-j]$/) {
$values[$i] = $lettdig{uc($values[$i])};
}
} elsif ($scantronconf{'Qon'} eq 'letter') {
if ($values[$i] =~ /^[0-9]$/) {
$values[$i] = $diglett{$values[$i]};
}
} else {
if ($values[$i] =~ /^[0-9A-Ja-j]$/) {
my $digit;
if ($values[$i] =~ /^[A-Ja-j]$/) {
$digit = $lettdig{uc($values[$i])}-1;
if ($values[$i] eq 'J') {
$digit += $numletts;
}
} elsif ($values[$i] =~ /^[0-9]$/) {
$digit = $values[$i]-1;
if ($values[$i] eq '0') {
$digit += $numletts;
}
}
my $qval='';
for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) {
if ($j == $digit) {
$qval .= $scantronconf{'Qon'};
} else {
$qval .= $scantronconf{'Qoff'};
}
}
$values[$i] = $qval;
}
}
if (length($values[$i]) > $scantronconf{'Qlength'}) {
$values[$i] = substr($values[$i],0,$scantronconf{'Qlength'});
}
my $numblank = $scantronconf{'Qlength'} - length($values[$i]);
if ($numblank > 0) {
$values[$i] .= ($scantronconf{'Qoff'} x $numblank);
}
if ($csvbynum{$i} eq 'FirstQuestion') {
$qstart = $i;
$found{$csvbynum{$i}} = $values[$i];
} else {
$found{'FirstQuestion'} .= $values[$i];
}
} elsif (exists($csvbynum{$i})) {
if ($csvoptions{'rem'}) {
$values[$i] =~ s/^\s+//;
}
if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) {
while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) {
$values[$i] = '0'.$values[$i];
}
}
$found{$csvbynum{$i}} = $values[$i];
}
}
foreach my $item (@ordered) {
my $currlength = 1+length($record);
my $numspaces = $scantronconf{$item} - $currlength;
if ($numspaces > 0) {
$record .= (' ' x $numspaces);
}
if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) {
unless ($item eq 'Qstart') {
if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) {
$found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}});
}
}
$record .= $found{$mapstart{$item}};
}
}
$output .= "$record\n";
}
close($fh);
if ($output) {
if (open(my $fh,'>',$fullpath)) {
print $fh $output;
close($fh);
}
}
}
}
return;
}
}

sub letter_to_digits {
my %lettdig = (
A => 1,
B => 2,
C => 3,
D => 4,
E => 5,
F => 6,
G => 7,
H => 8,
I => 9,
J => 0,
);
return %lettdig;
}

sub get_scantron_config {
my ($which,$cdom) = @_;
my @lines = &get_scantronformat_file($cdom);
my %config;
#FIXME probably should move to XML it has already gotten a bit much now
foreach my $line (@lines) {
my ($name,$descrip)=split(/:/,$line);
if ($name ne $which ) { next; }
chomp($line);
my @config=split(/:/,$line);
$config{'name'}=$config[0];
$config{'description'}=$config[1];
$config{'CODElocation'}=$config[2];
$config{'CODEstart'}=$config[3];
$config{'CODElength'}=$config[4];
$config{'IDstart'}=$config[5];
$config{'IDlength'}=$config[6];
$config{'Qstart'}=$config[7];
$config{'Qlength'}=$config[8];
$config{'Qoff'}=$config[9];
$config{'Qon'}=$config[10];
$config{'PaperID'}=$config[11];
$config{'PaperIDlength'}=$config[12];
$config{'FirstName'}=$config[13];
$config{'FirstNamelength'}=$config[14];
$config{'LastName'}=$config[15];
$config{'LastNamelength'}=$config[16];
$config{'BubblesPerRow'}=$config[17];
last;
}
return %config;
}

sub get_scantronformat_file {
my ($cdom) = @_;
if ($cdom eq '') {
$cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
}
my %domconfig = &get_dom('configuration',['scantron'],$cdom);
my $gottab = 0;
my @lines;
if (ref($domconfig{'scantron'}) eq 'HASH') {
if ($domconfig{'scantron'}{'scantronformat'} ne '') {
my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
if ($formatfile ne '-1') {
@lines = split("\n",$formatfile,-1);
$gottab = 1;
}
}
}
if (!$gottab) {
my $confname = $cdom.'-domainconfig';
my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
my $formatfile = &getfile($default);
if ($formatfile ne '-1') {
@lines = split("\n",$formatfile,-1);
$gottab = 1;
}
}
if (!$gottab) {
my @domains = &current_machine_domains();
if (grep(/^\Q$cdom\E$/,@domains)) {
if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) {
@lines = <$fh>;
close($fh);
}
} else {
if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) {
@lines = <$fh>;
close($fh);
}
}
}
return @lines;
}

sub removeuploadedurl {	sub removeuploadedurl {
my ($url)=@_;	my ($url)=@_;
my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);	my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
Line 4596 sub flushcourselogs {	Line 3776 sub flushcourselogs {
}	}
}	}
#	#
# Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)	# Reverse lookup of domain roles (dc, ad, li, sc, au)
#	#
my %domrolebuffer = ();	my %domrolebuffer = ();
foreach my $entry (keys(%domainrolehash)) {	foreach my $entry (keys(%domainrolehash)) {
Line 4611 sub flushcourselogs {	Line 3791 sub flushcourselogs {
delete $domainrolehash{$entry};	delete $domainrolehash{$entry};
}	}
foreach my $dom (keys(%domrolebuffer)) {	foreach my $dom (keys(%domrolebuffer)) {
my %servers;	my %servers = &get_servers($dom,'library');
if (defined(&domain($dom,'primary'))) {
my $primary=&domain($dom,'primary');
my $hostname=&hostname($primary);
$servers{$primary} = $hostname;
} else {
%servers = &get_servers($dom,'library');
}
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
if (&reply('domroleput:'.$dom.':'.	unless (&reply('domroleput:'.$dom.':'.
$domrolebuffer{$dom},$tryserver) eq 'ok') {	$domrolebuffer{$dom},$tryserver) eq 'ok') {
last;
} else {
&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);	&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
}	}
}	}
Line 4743 sub userrolelog {	Line 3914 sub userrolelog {
{$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}	{$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
=$tend.':'.$tstart;	=$tend.':'.$tstart;
}	}
if ($trole =~ /^(dc\|ad\|li\|au\|dg\|sc\|dh\|da)/ ) {	if ($trole =~ /^(dc\|ad\|li\|au\|dg\|sc)/ ) {
my (undef,$rudom,$runame,$rsec)=split(/\//,$area);	my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
$domainrolehash	$domainrolehash
{$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}	{$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
Line 4951 sub get_my_roles {	Line 4122 sub get_my_roles {
} else {	} else {
my $possdoms = [$domain];	my $possdoms = [$domain];
if (ref($roledoms) eq 'ARRAY') {	if (ref($roledoms) eq 'ARRAY') {
push(@{$possdoms},@{$roledoms});	push(@{$possdoms},@{$roledoms});
}	}
if (&privileged($username,$domain,$possdoms,\@privroles)) {	if (&privileged($username,$domain,$possdoms,\@privroles)) {
if (!$nothide{$username.':'.$domain}) {	if (!$nothide{$username.':'.$domain}) {
Line 4970 sub get_my_roles {	Line 4141 sub get_my_roles {
return %returnhash;	return %returnhash;
}	}

sub get_all_adhocroles {
my ($dom) = @_;
my @roles_by_num = ();
my %domdefaults = &get_domain_defaults($dom);
my (%description,%access_in_dom,%access_info);
if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
my $count = 0;
my %domcurrent = %{$domdefaults{'adhocroles'}};
my %ordered;
foreach my $role (sort(keys(%domcurrent))) {
my ($order,$desc,$access_in_dom);
if (ref($domcurrent{$role}) eq 'HASH') {
$order = $domcurrent{$role}{'order'};
$desc = $domcurrent{$role}{'desc'};
$access_in_dom{$role} = $domcurrent{$role}{'access'};
$access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
}
if ($order eq '') {
$order = $count;
}
$ordered{$order} = $role;
if ($desc ne '') {
$description{$role} = $desc;
} else {
$description{$role}= $role;
}
$count++;
}
foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
push(@roles_by_num,$ordered{$item});
}
}
return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
}

sub get_my_adhocroles {
my ($cid,$checkreg) = @_;
my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
if ($env{'request.course.id'} eq $cid) {
$cdom = $env{'course.'.$cid.'.domain'};
$cnum = $env{'course.'.$cid.'.num'};
$info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
} elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
$cdom = $1;
$cnum = $2;
%info = &Apache::lonnet::get('environment',['internal.coursecode'],
$cdom,$cnum);
}
if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
my $user = $env{'user.name'}.':'.$env{'user.domain'};
my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
if ($rosterhash{$user} ne '') {
my $type = (split(/:/,$rosterhash{$user}))[5];
return ([],{}) if ($type eq 'auto');
}
}
if (($cdom ne '') && ($cnum ne '')) {
if (($env{"user.role.dh./$cdom/"}) \|\| ($env{"user.role.da./$cdom/"})) {
my $then=$env{'user.login.time'};
my $update=$env{'user.update.time'};
if (!$update) {
$update = $then;
}
my @liveroles;
foreach my $role ('dh','da') {
if ($env{"user.role.$role./$cdom/"}) {
my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
my $limit = $update;
if ($env{'request.role'} eq "$role./$cdom/") {
$limit = $then;
}
my $activerole = 1;
if ($tstart && $tstart>$limit) { $activerole = 0; }
if ($tend && $tend <$limit) { $activerole = 0; }
if ($activerole) {
push(@liveroles,$role);
}
}
}
if (@liveroles) {
if (&homeserver($cnum,$cdom) ne 'no_host') {
my ($accessref,$accessinfo,%access_in_dom);
($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
if (ref($roles_by_num) eq 'ARRAY') {
if (@{$roles_by_num}) {
my %settings;
if ($env{'request.course.id'} eq $cid) {
foreach my $envkey (keys(%env)) {
if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
$settings{$1} = $env{$envkey};
}
}
} else {
%settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
}
my %setincrs;
if ($settings{'internal.adhocaccess'}) {
map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
}
my @statuses;
if ($env{'environment.inststatus'}) {
@statuses = split(/,/,$env{'environment.inststatus'});
}
my $user = $env{'user.name'}.':'.$env{'user.domain'};
if (ref($accessref) eq 'HASH') {
%access_in_dom = %{$accessref};
}
foreach my $role (@{$roles_by_num}) {
my ($curraccess,@okstatus,@personnel);
if ($setincrs{$role}) {
($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
if ($curraccess eq 'status') {
@okstatus = split(/\&/,$rest);
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
@personnel = split(/\&/,$rest);
}
} else {
$curraccess = $access_in_dom{$role};
if (ref($accessinfo) eq 'HASH') {
if ($curraccess eq 'status') {
if (ref($accessinfo->{$role}) eq 'ARRAY') {
@okstatus = @{$accessinfo->{$role}};
}
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
if (ref($accessinfo->{$role}) eq 'ARRAY') {
@personnel = @{$accessinfo->{$role}};
}
}
}
}
if ($curraccess eq 'none') {
next;
} elsif ($curraccess eq 'all') {
push(@possroles,$role);
} elsif ($curraccess eq 'dh') {
if (grep(/^dh$/,@liveroles)) {
push(@possroles,$role);
} else {
next;
}
} elsif ($curraccess eq 'da') {
if (grep(/^da$/,@liveroles)) {
push(@possroles,$role);
} else {
next;
}
} elsif ($curraccess eq 'status') {
if (@okstatus) {
if (!@statuses) {
if (grep(/^default$/,@okstatus)) {
push(@possroles,$role);
}
} else {
foreach my $status (@okstatus) {
if (grep(/^\Q$status\E$/,@statuses)) {
push(@possroles,$role);
last;
}
}
}
}
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
if (grep(/^\Q$user\E$/,@personnel)) {
if ($curraccess eq 'exc') {
push(@possroles,$role);
}
} elsif ($curraccess eq 'inc') {
push(@possroles,$role);
}
}
}
}
}
}
}
}
}
unless (ref($description) eq 'HASH') {
if (ref($roles_by_num) eq 'ARRAY') {
my %desc;
map { $desc{$_} = $_; } (@{$roles_by_num});
$description = \%desc;
} else {
$description = {};
}
}
return (\@possroles,$description);
}

# ----------------------------------------------------- Frontpage Announcements	# ----------------------------------------------------- Frontpage Announcements
#	#
#	#
Line 5172 sub postannounce {	Line 4154 sub postannounce {

sub getannounce {	sub getannounce {

if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {	if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
my $announcement='';	my $announcement='';
while (my $line = <$fh>) { $announcement .= $line; }	while (my $line = <$fh>) { $announcement .= $line; }
close($fh);	close($fh);
Line 5235 sub courseiddump {	Line 4217 sub courseiddump {
$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,	$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,	$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,	$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
$hasuniquecode,$reqcrsdom,$reqinstcode)=@_;	$hasuniquecode)=@_;
my $as_hash = 1;	my $as_hash = 1;
my %returnhash;	my %returnhash;
if (!$domfilter) { $domfilter=''; }	if (!$domfilter) { $domfilter=''; }
Line 5248 sub courseiddump {	Line 4230 sub courseiddump {
if (($domfilter eq '') \|\|	if (($domfilter eq '') \|\|
(&host_domain($tryserver) eq $domfilter)) {	(&host_domain($tryserver) eq $domfilter)) {
my $rep;	my $rep;
if (grep { $_ eq $tryserver } &current_machine_ids()) {	if (grep { $_ eq $tryserver } current_machine_ids()) {
$rep = &LONCAPA::Lond::dump_course_id_handler(	$rep = LONCAPA::Lond::dump_course_id_handler(
join(":", (&host_domain($tryserver), $sincefilter,	join(":", (&host_domain($tryserver), $sincefilter,
&escape($descfilter), &escape($instcodefilter),	&escape($descfilter), &escape($instcodefilter),
&escape($ownerfilter), &escape($coursefilter),	&escape($ownerfilter), &escape($coursefilter),
&escape($typefilter), &escape($regexp_ok),	&escape($typefilter), &escape($regexp_ok),
$as_hash, &escape($selfenrollonly),	$as_hash, &escape($selfenrollonly),
&escape($catfilter), $showhidden, $caller,	&escape($catfilter), $showhidden, $caller,
&escape($cloner), &escape($cc_clone), $cloneonly,	&escape($cloner), &escape($cc_clone), $cloneonly,
&escape($createdbefore), &escape($createdafter),	&escape($createdbefore), &escape($createdafter),
&escape($creationcontext),$domcloner,$hasuniquecode,	&escape($creationcontext), $domcloner, $hasuniquecode)));
$reqcrsdom,&escape($reqinstcode))));
} else {	} else {
$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.	$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
$sincefilter.':'.&escape($descfilter).':'.	$sincefilter.':'.&escape($descfilter).':'.
Line 5270 sub courseiddump {	Line 4251 sub courseiddump {
$showhidden.':'.$caller.':'.&escape($cloner).':'.	$showhidden.':'.$caller.':'.&escape($cloner).':'.
&escape($cc_clone).':'.$cloneonly.':'.	&escape($cc_clone).':'.$cloneonly.':'.
&escape($createdbefore).':'.&escape($createdafter).':'.	&escape($createdbefore).':'.&escape($createdafter).':'.
&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.	&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode,
':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);	$tryserver);
}	}

my @pairs=split(/\&/,$rep);	my @pairs=split(/\&/,$rep);
foreach my $item (@pairs) {	foreach my $item (@pairs) {
my ($key,$value)=split(/\=/,$item,2);	my ($key,$value)=split(/\=/,$item,2);
Line 5399 sub get_domain_roles {	Line 4380 sub get_domain_roles {
return %personnel;	return %personnel;
}	}

sub get_active_domroles {
my ($dom,$roles) = @_;
return () unless (ref($roles) eq 'ARRAY');
my $now = time;
my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
my %domroles;
foreach my $server (keys(%dompersonnel)) {
foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
$domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
}
}
return %domroles;
}

# ----------------------------------------------------------- Interval timing	# ----------------------------------------------------------- Interval timing

{	{
Line 5425 my $cachedkey='';	Line 4391 my $cachedkey='';
# The cached times for this user	# The cached times for this user
my %cachedtimes=();	my %cachedtimes=();
# When this was last done	# When this was last done
my $cachedtime='';	my $cachedtime=();

sub load_all_first_access {	sub load_all_first_access {
my ($uname,$udom)=@_;	my ($uname,$udom)=@_;
Line 5468 sub set_first_access {	Line 4434 sub set_first_access {
}	}
$cachedkey='';	$cachedkey='';
my $firstaccess=&get_first_access($type,$symb,$map);	my $firstaccess=&get_first_access($type,$symb,$map);
if ($firstaccess) {	if (!$firstaccess) {
&logthis("First access time already set ($firstaccess) when attempting ".
"to set new value (type: $type, extent: $res) for $uname:$udom ".
"in $courseid");
return 'already_set';
} else {
my $start = time;	my $start = time;
my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},	my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
$udom,$uname);	$udom,$uname);
Line 5486 sub set_first_access {	Line 4447 sub set_first_access {
'course.'.$courseid.'.timerinterval.'.$res => $interval,	'course.'.$courseid.'.timerinterval.'.$res => $interval,
}	}
);	);
if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
$cachedtimes{"$courseid\0$res"} = $start;
}
} elsif ($putres ne 'refused') {
&logthis("Result: $putres when attempting to set first access time ".
"(type: $type, extent: $res) for $uname:$udom in $courseid");
}	}
return $putres;	return $putres;
}	}
return 'already_set';	return 'already_set';
}	}
}	}

sub checkout {
my ($symb,$tuname,$tudom,$tcrsid)=@_;
my $now=time;
my $lonhost=$perlvar{'lonHostID'};
my $infostr=&escape(
'CHECKOUTTOKEN&'.
$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.'_'.&hostname($lonhost).'_'.$tb;
$dtoken=~s/\W/\_/g;
my ($dummy,$tuname,$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	# --------------------------------------------- Set Expire Date for Spreadsheet

sub expirespread {	sub expirespread {
Line 5954 sub tmprestore {	Line 4823 sub tmprestore {
# ----------------------------------------------------------------------- Store	# ----------------------------------------------------------------------- Store

sub store {	sub store {
my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;	my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
my $home='';	my $home='';

if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }
Line 5984 sub store {	Line 4853 sub store {
}	}
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);	&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");	return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
}	}

# -------------------------------------------------------------- Critical Store	# -------------------------------------------------------------- Critical Store

sub cstore {	sub cstore {
my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;	my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
my $home='';	my $home='';

if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }
Line 6021 sub cstore {	Line 4890 sub cstore {
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);	&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
return critical	return critical
("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");	("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
}	}

# --------------------------------------------------------------------- Restore	# --------------------------------------------------------------------- Restore
Line 6177 sub privileged {	Line 5046 sub privileged {
my $now = time;	my $now = time;
my $roles;	my $roles;
if (ref($possroles) eq 'ARRAY') {	if (ref($possroles) eq 'ARRAY') {
$roles = $possroles;	$roles = $possroles;
} else {	} else {
$roles = ['dc','su'];	$roles = ['dc','su'];
}	}
Line 6201 sub privileged {	Line 5070 sub privileged {
my %rolesdump = &dump("roles", $domain, $username) or return 0;	my %rolesdump = &dump("roles", $domain, $username) or return 0;
my $now = time;	my $now = time;

for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {	for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
my ($trole, $tend, $tstart) = split(/_/, $role);	my ($trole, $tend, $tstart) = split(/_/, $role);
if (grep(/^\Q$trole\E$/,@{$roles})) {	if (grep(/^\Q$trole\E$/,@{$roles})) {
return 1 unless ($tend && $tend < $now)	return 1 unless ($tend && $tend < $now)
or ($tstart && $tstart > $now);	or ($tstart && $tstart > $now);
}	}
}	}
Line 6242 sub privileged_by_domain {	Line 5111 sub privileged_by_domain {
my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);	my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});	my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
next if ($end && $end < $now);	next if ($end && $end < $now);
$privileged{$dom}{$trole}{$uname.':'.$udom} =	$privileged{$dom}{$trole}{$uname.':'.$udom} =
$dompersonnel{$server}{$item};	$dompersonnel{$server}{$item};
}	}
}	}
Line 6290 sub rolesinit {	Line 5159 sub rolesinit {
my %allroles=();	my %allroles=();
my %allgroups=();	my %allgroups=();

for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {	for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
my $role = $rolesdump{$area};	my $role = $rolesdump{$area};
$area =~ s/\_\w\w$//;	$area =~ s/\_\w\w$//;

Line 6363 sub rolesinit {	Line 5232 sub rolesinit {
}	}
}	}

@userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,	@userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
\%allroles, \%allgroups);	\%allroles, \%allgroups);
$env{'user.adv'} = $userroles{'user.adv'};	$env{'user.adv'} = $userroles{'user.adv'};
$env{'user.rar'} = $userroles{'user.rar'};

return (\%userroles,\%firstaccenv,\%timerintenv);	return (\%userroles,\%firstaccenv,\%timerintenv);
}	}
Line 6402 sub custom_roleprivs {	Line 5270 sub custom_roleprivs {
$$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;	$$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
}	}
if (($trest ne '') && (defined($coursepriv))) {	if (($trest ne '') && (defined($coursepriv))) {
if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
my $rolename = $1;
$coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
}
$$allroles{'cm.'.$area}.=':'.$coursepriv;	$$allroles{'cm.'.$area}.=':'.$coursepriv;
$$allroles{$spec.'.'.$area}.=':'.$coursepriv;	$$allroles{$spec.'.'.$area}.=':'.$coursepriv;
}	}
Line 6414 sub custom_roleprivs {	Line 5278 sub custom_roleprivs {
}	}
}	}

sub course_adhocrole_privs {
my ($rolename,$cdom,$cnum,$coursepriv) = @_;
my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
if ($overrides{"internal.adhocpriv.$rolename"}) {
my (%currprivs,%storeprivs);
foreach my $item (split(/:/,$coursepriv)) {
my ($priv,$restrict) = split(/\&/,$item);
$currprivs{$priv} = $restrict;
}
my (%possadd,%possremove,%full);
foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
my ($priv,$restrict)=split(/\&/,$item);
$full{$priv} = $restrict;
}
foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
next if ($item eq '');
my ($rule,$rest) = split(/=/,$item);
next unless (($rule eq 'off') \|\| ($rule eq 'on'));
foreach my $priv (split(/:/,$rest)) {
if ($priv ne '') {
if ($rule eq 'off') {
$possremove{$priv} = 1;
} else {
$possadd{$priv} = 1;
}
}
}
}
foreach my $priv (sort(keys(%full))) {
if (exists($currprivs{$priv})) {
unless (exists($possremove{$priv})) {
$storeprivs{$priv} = $currprivs{$priv};
}
} elsif (exists($possadd{$priv})) {
$storeprivs{$priv} = $full{$priv};
}
}
$coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
}
return $coursepriv;
}

sub group_roleprivs {	sub group_roleprivs {
my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;	my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
my $access = 1;	my $access = 1;
Line 6490 sub set_userprivs {	Line 5312 sub set_userprivs {
my ($userroles,$allroles,$allgroups,$groups_roles) = @_;	my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
my $author=0;	my $author=0;
my $adv=0;	my $adv=0;
my $rar=0;
my %grouproles = ();	my %grouproles = ();
if (keys(%{$allgroups}) > 0) {	if (keys(%{$allgroups}) > 0) {
my @groupkeys;	my @groupkeys;
Line 6538 sub set_userprivs {	Line 5359 sub set_userprivs {
$thesepriv{$privilege}.=$restrictions;	$thesepriv{$privilege}.=$restrictions;
}	}
if ($thesepriv{'adv'} eq 'F') { $adv=1; }	if ($thesepriv{'adv'} eq 'F') { $adv=1; }
if ($thesepriv{'rar'} eq 'F') { $rar=1; }
}	}
}	}
my $thesestr='';	my $thesestr='';
Line 6547 sub set_userprivs {	Line 5367 sub set_userprivs {
}	}
$userroles->{'user.priv.'.$role} = $thesestr;	$userroles->{'user.priv.'.$role} = $thesestr;
}	}
return ($author,$adv,$rar);	return ($author,$adv);
}	}

sub role_status {	sub role_status {
Line 6592 sub role_status {	Line 5412 sub role_status {
push(@rolecodes,$$role);	push(@rolecodes,$$role);
&standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);	&standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
}	}
my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,	my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
\%groups_roles);
&appenv(\%userroles,\@rolecodes);	&appenv(\%userroles,\@rolecodes);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
}	}
}	}
$$tstatus = 'is';	$$tstatus = 'is';
Line 6671 sub delete_env_groupprivs {	Line 5490 sub delete_env_groupprivs {
}	}

sub check_adhoc_privs {	sub check_adhoc_privs {
my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;	my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;	my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
if ($sec) {
$cckey .= '/'.$sec;
}
my $setprivs;	my $setprivs;
if ($env{$cckey}) {	if ($env{$cckey}) {
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);	my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
&role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);	&role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
unless (($tstatus eq 'is') \|\| ($tstatus eq 'will_not')) {	unless (($tstatus eq 'is') \|\| ($tstatus eq 'will_not')) {
&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);	&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
$setprivs = 1;	$setprivs = 1;
}	}
} else {	} else {
&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);	&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
$setprivs = 1;	$setprivs = 1;
}	}
return $setprivs;	return $setprivs;
}	}

sub set_adhoc_privileges {	sub set_adhoc_privileges {
# role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role	# role can be cc or ca
my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;	my ($dcdom,$pickedcourse,$role,$caller) = @_;
my $area = '/'.$dcdom.'/'.$pickedcourse;	my $area = '/'.$dcdom.'/'.$pickedcourse;
if ($sec ne '') {
$area .= '/'.$sec;
}
my $spec = $role.'.'.$area;	my $spec = $role.'.'.$area;
my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},	my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
$env{'user.name'},1);	$env{'user.name'},1);
my %rolehash = ();	my %ccrole = ();
if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {	&standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
my $rolename = $1;	my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
&custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
my %domdef = &get_domain_defaults($dcdom);
if (ref($domdef{'adhocroles'}) eq 'HASH') {
if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
&appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
}
}
} else {
&standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
}
my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
&appenv(\%userroles,[$role,'cm']);	&appenv(\%userroles,[$role,'cm']);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {	unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
&appenv( {'request.role' => $spec,	&appenv( {'request.role' => $spec,
'request.role.domain' => $dcdom,	'request.role.domain' => $dcdom,
'request.course.sec' => $sec,	'request.course.sec' => ''
}	}
);	);
my $tadv=0;	my $tadv=0;
Line 6780 sub unserialize {	Line 5582 sub unserialize {
return {} if $rep =~ /^error/;	return {} if $rep =~ /^error/;

my %returnhash=();	my %returnhash=();
foreach my $item (split(/\&/,$rep)) {	foreach my $item (split(/\&/,$rep)) {
my ($key, $value) = split(/=/, $item, 2);	my ($key, $value) = split(/=/, $item, 2);
$key = unescape($key) unless $escapedkeys;	$key = unescape($key) unless $escapedkeys;
next if $key =~ /^error: 2 /;	next if $key =~ /^error: 2 /;
$returnhash{$key} = &thaw_unescape($value);	$returnhash{$key} = &thaw_unescape($value);
}	}
	#return %returnhash;
return \%returnhash;	return \%returnhash;
}	}

# see Lond::dump_with_regexp	# see Lond::dump_with_regexp
# if $escapedkeys hash keys won't get unescaped.	# if $escapedkeys hash keys won't get unescaped.
Line 6797 sub dump {	Line 5600 sub dump {
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);

if ($regexp) {	my $reply;
$regexp=&escape($regexp);	if (grep { $_ eq $uhome } current_machine_ids()) {
} else {
$regexp='.';
}
if (grep { $_ eq $uhome } &current_machine_ids()) {
# user is hosted on this machine	# user is hosted on this machine
my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,	$reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});	$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
return %{&unserialize($reply, $escapedkeys)};	return %{unserialize($reply, $escapedkeys)};
	}
	if ($regexp) {
	$regexp=&escape($regexp);
	} else {
	$regexp='.';
}	}
my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);	my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
my @pairs=split(/\&/,$rep);	my @pairs=split(/\&/,$rep);
Line 6814 sub dump {	Line 5618 sub dump {
if (!($rep =~ /^error/ )) {	if (!($rep =~ /^error/ )) {
foreach my $item (@pairs) {	foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);	my ($key,$value)=split(/=/,$item,2);
$key = &unescape($key) unless ($escapedkeys);	$key = unescape($key) unless $escapedkeys;
	#$key = &unescape($key);
next if ($key =~ /^error: 2 /);	next if ($key =~ /^error: 2 /);
$returnhash{$key}=&thaw_unescape($value);	$returnhash{$key}=&thaw_unescape($value);
}	}
Line 6858 sub currentdump {	Line 5663 sub currentdump {
my $rep;	my $rep;

if (grep { $_ eq $uhome } current_machine_ids()) {	if (grep { $_ eq $uhome } current_machine_ids()) {
$rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,	$rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
$courseid)));	$courseid)));
} else {	} else {
$rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);	$rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
Line 6984 sub newput {	Line 5789 sub newput {
# --------------------------------------------------------- putstore interface	# --------------------------------------------------------- putstore interface

sub putstore {	sub putstore {
my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;	my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
if (!$udomain) { $udomain=$env{'user.domain'}; }	if (!$udomain) { $udomain=$env{'user.domain'}; }
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);
Line 6998 sub putstore {	Line 5803 sub putstore {
my $reply =	my $reply =
&reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",	&reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
$uhome);	$uhome);
if (($tolog) && ($reply eq 'ok')) {
my $namevalue='';
foreach my $key (keys(%{$storehash})) {
$namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
}
$namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
'&host='.&escape($perlvar{'lonHostID'}).
'&version='.$esc_v.
'&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
&Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
}
if ($reply eq 'unknown_cmd') {	if ($reply eq 'unknown_cmd') {
# gfall back to way things use to be done	# gfall back to way things use to be done
return &old_putstore($namespace,$symb,$version,$storehash,$udomain,	return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
Line 7102 sub tmpget {	Line 5896 sub tmpget {
if (!defined($server)) { $server = $perlvar{'lonHostID'}; }	if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
my $rep=&reply("tmpget:$token",$server);	my $rep=&reply("tmpget:$token",$server);
my %returnhash;	my %returnhash;
if ($rep =~ /^(con_lost\|error\|no_such_host)/i) {
return %returnhash;
}
foreach my $item (split(/\&/,$rep)) {	foreach my $item (split(/\&/,$rep)) {
my ($key,$value)=split(/=/,$item);	my ($key,$value)=split(/=/,$item);
	next if ($key =~ /^error: 2 /);
$returnhash{&unescape($key)}=&thaw_unescape($value);	$returnhash{&unescape($key)}=&thaw_unescape($value);
}	}
return %returnhash;	return %returnhash;
Line 7119 sub tmpdel {	Line 5911 sub tmpdel {
return &reply("tmpdel:$token",$server);	return &reply("tmpdel:$token",$server);
}	}

# ------------------------------------------------------------ get_timebased_id	# ------------------------------------------------------------ get_timebased_id

sub get_timebased_id {	sub get_timebased_id {
my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,	my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
$maxtries) = @_;	$maxtries) = @_;
my ($newid,$error,$dellock);	my ($newid,$error,$dellock);
unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {	unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
return ('','ok','invalid call to get suffix');	return ('','ok','invalid call to get suffix');
}	}

Line 7139 sub get_timebased_id {	Line 5931 sub get_timebased_id {
if (!$maxtries) {	if (!$maxtries) {
$maxtries = 10;	$maxtries = 10;
}	}

if (($cdom eq '') \|\| ($cnum eq '')) {	if (($cdom eq '') \|\| ($cnum eq '')) {
if ($env{'request.course.id'}) {	if ($env{'request.course.id'}) {
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};	$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
Line 7169 sub get_timebased_id {	Line 5961 sub get_timebased_id {
my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);	my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
my $id = time;	my $id = time;
$newid = $id;	$newid = $id;
if ($idtype eq 'addcode') {
$newid .= &sixnum_code();
}
my $idtries = 0;	my $idtries = 0;
while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {	while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
if ($idtype eq 'concat') {	if ($idtype eq 'concat') {
$newid = $id.$idtries;	$newid = $id.$idtries;
} elsif ($idtype eq 'addcode') {
$newid = $newid.&sixnum_code();
} else {	} else {
$newid ++;	$newid ++;
}	}
Line 7194 sub get_timebased_id {	Line 5981 sub get_timebased_id {
$error = 'error saving new item: '.$putresult;	$error = 'error saving new item: '.$putresult;
}	}
} else {	} else {
undef($newid);
$error = ('error: no unique suffix available for the new item ');	$error = ('error: no unique suffix available for the new item ');
}	}
# remove lock	# remove lock
Line 7203 sub get_timebased_id {	Line 5989 sub get_timebased_id {
} else {	} else {
$error = "error: could not obtain lockfile\n";	$error = "error: could not obtain lockfile\n";
$dellock = 'ok';	$dellock = 'ok';
if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
$dellock = 'nolock';
}
}	}
return ($newid,$dellock,$error);	return ($newid,$dellock,$error);
}	}

sub sixnum_code {
my $code;
for (0..6) {
$code .= int( rand(9) );
}
return $code;
}

# -------------------------------------------------- portfolio access checking	# -------------------------------------------------- portfolio access checking

sub portfolio_access {	sub portfolio_access {
my ($requrl,$clientip) = @_;	my ($requrl) = @_;
my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);	my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);	my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
if ($result) {	if ($result) {
my %setters;	my %setters;
if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {	if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
Line 7249 sub portfolio_access {	Line 6024 sub portfolio_access {
}	}

sub get_portfolio_access {	sub get_portfolio_access {
my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;	my ($udom,$unum,$file_name,$group,$access_hash) = @_;

if (!ref($access_hash)) {	if (!ref($access_hash)) {
my $current_perms = &get_portfile_permissions($udom,$unum);	my $current_perms = &get_portfile_permissions($udom,$unum);
Line 7258 sub get_portfolio_access {	Line 6033 sub get_portfolio_access {
$access_hash = $access_controls{$file_name};	$access_hash = $access_controls{$file_name};
}	}

my ($public,$guest,@domains,@users,@courses,@groups,@ips);	my ($public,$guest,@domains,@users,@courses,@groups);
my $now = time;	my $now = time;
if (ref($access_hash) eq 'HASH') {	if (ref($access_hash) eq 'HASH') {
foreach my $key (keys(%{$access_hash})) {	foreach my $key (keys(%{$access_hash})) {
Line 7282 sub get_portfolio_access {	Line 6057 sub get_portfolio_access {
push(@courses,$key);	push(@courses,$key);
} elsif ($scope eq 'group') {	} elsif ($scope eq 'group') {
push(@groups,$key);	push(@groups,$key);
} elsif ($scope eq 'ip') {
push(@ips,$key);
}	}
}	}
if ($public) {	if ($public) {
return 'ok';	return 'ok';
} elsif (@ips > 0) {
my $allowed;
foreach my $ipkey (@ips) {
if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
$allowed = 1;
last;
}
}
}
if ($allowed) {
return 'ok';
}
}	}
if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {	if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
if ($guest) {	if ($guest) {
Line 7522 sub usertools_access {	Line 6282 sub usertools_access {

my ($toolstatus,$inststatus,$envkey);	my ($toolstatus,$inststatus,$envkey);
if ($context eq 'requestauthor') {	if ($context eq 'requestauthor') {
$envkey = $context;	$envkey = $context;
} else {	} else {
$envkey = $context.'.'.$tool;	$envkey = $context.'.'.$tool;
}	}
Line 7784 sub customaccess {	Line 6544 sub customaccess {
# ------------------------------------------------- Check for a user privilege	# ------------------------------------------------- Check for a user privilege

sub allowed {	sub allowed {
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_;	my ($priv,$uri,$symb,$role)=@_;
my $ver_orguri=$uri;	my $ver_orguri=$uri;
$uri=&deversion($uri);	$uri=&deversion($uri);
my $orguri=$uri;	my $orguri=$uri;
Line 7966 sub allowed {	Line 6726 sub allowed {

if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}	if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
if ($priv eq 'mip') {	unless (($priv eq 'bro') && (!$ownaccess)) {
my $rem = $1;	$thisallowed.=$1;
if (($uri ne '') && ($env{'request.course.id'} eq $uri) &&
($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
if ($cdom ne '') {
my %passwdconf = &get_passwdconf($cdom);
if (ref($passwdconf{'crsownerchg'}) eq 'HASH') {
if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') {
if (@{$passwdconf{'crsownerchg'}{'by'}}) {
my @inststatuses = split(':',$env{'environment.inststatus'});
unless (@inststatuses) {
@inststatuses = ('default');
}
foreach my $status (@inststatuses) {
if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) {
$thisallowed.=$rem;
}
}
}
}
}
}
}
} else {
unless (($priv eq 'bro') && (!$ownaccess)) {
$thisallowed.=$1;
}
}	}
}	}

Line 8005 sub allowed {	Line 6739 sub allowed {
if ($match) {	if ($match) {
if ($env{'user.priv.'.$env{'request.role'}.'./'}	if ($env{'user.priv.'.$env{'request.role'}.'./'}
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my @blockers = &has_comm_blocking($priv,$symb,$uri);
if ($noblockcheck) {	if (@blockers > 0) {
$thisallowed.=$value;	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	$thisallowed.=$1;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
}	}
} else {	} else {
Line 8026 sub allowed {	Line 6755 sub allowed {
$refuri=&declutter($refuri);	$refuri=&declutter($refuri);
my ($match) = &is_on_map($refuri);	my ($match) = &is_on_map($refuri);
if ($match) {	if ($match) {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
$thisallowed='F';	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	$thisallowed='F';
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed='F';
}
}	}
}	}
}	}
Line 8046 sub allowed {	Line 6771 sub allowed {
&& $thisallowed ne 'F'	&& $thisallowed ne 'F'
&& $thisallowed ne '2'	&& $thisallowed ne '2'
&& &is_portfolio_url($uri)) {	&& &is_portfolio_url($uri)) {
$thisallowed = &portfolio_access($uri,$clientip);	$thisallowed = &portfolio_access($uri);
}	}

# Full access at system, domain or course-wide level? Exit.	# Full access at system, domain or course-wide level? Exit.
if ($thisallowed=~/F/) {	if ($thisallowed=~/F/) {
return 'F';	return 'F';
Line 8076 sub allowed {	Line 6801 sub allowed {

if ($env{'request.course.id'}) {	if ($env{'request.course.id'}) {

# If this is modifying password (internal auth) domains must match for user and user's role.

if ($priv eq 'mip') {
if ($env{'user.domain'} eq $env{'request.role.domain'}) {
return $thisallowed;
} else {
return '';
}
}

$courseprivid=$env{'request.course.id'};	$courseprivid=$env{'request.course.id'};
if ($env{'request.course.sec'}) {	if ($env{'request.course.sec'}) {
$courseprivid.='/'.$env{'request.course.sec'};	$courseprivid.='/'.$env{'request.course.sec'};
Line 8099 sub allowed {	Line 6814 sub allowed {
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($priv eq 'bre') {	if ($priv eq 'bre') {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$uri);
$thisallowed.=$value;	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 8115 sub allowed {	Line 6826 sub allowed {
$checkreferer=0;	$checkreferer=0;
}	}
}	}

if ($checkreferer) {	if ($checkreferer) {
my $refuri=$env{'httpref.'.$orguri};	my $refuri=$env{'httpref.'.$orguri};
unless ($refuri) {	unless ($refuri) {
Line 8141 sub allowed {	Line 6852 sub allowed {
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($priv eq 'bre') {	if ($priv eq 'bre') {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
$thisallowed.=$value;	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 8230 sub allowed {	Line 6937 sub allowed {
}	}
}	}
}	}

#	#
# Rest of the restrictions depend on selected course	# Rest of the restrictions depend on selected course
#	#
Line 8325 sub constructaccess {	Line 7032 sub constructaccess {
my ($ownername,$ownerdomain,$ownerhome);	my ($ownername,$ownerdomain,$ownerhome);

($ownerdomain,$ownername) =	($ownerdomain,$ownername) =
($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E\|)/priv/($match_domain)/($match_username)(?:/\|$)});	($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E\|)/priv/($match_domain)/($match_username)/});

# The URL does not really point to any authorspace, forget it	# The URL does not really point to any authorspace, forget it
unless (($ownername) && ($ownerdomain)) { return ''; }	unless (($ownername) && ($ownerdomain)) { return ''; }
Line 8380 sub constructaccess {	Line 7087 sub constructaccess {
return '';	return '';
}	}

# ----------------------------------------------------------- Content Blocking

{
# Caches for faster Course Contents display where content blocking
# is in operation (i.e., interval param set) for timed quiz.
#
# User for whom data are being temporarily cached.
my $cacheduser='';
# Course for which data are being temporarily cached.
my $cachedcid='';
# Cached blockers for this user (a hash of blocking items).
my %cachedblockers=();
# When the data were last cached.
my $cachedlast='';

sub load_all_blockers {
my ($uname,$udom)=@_;
if (($uname ne '') && ($udom ne '')) {
if (($cacheduser eq $uname.':'.$udom) &&
($cachedcid eq $env{'request.course.id'}) &&
(abs($cachedlast-time)<5)) {
return;
}
}
$cachedlast=time;
$cacheduser=$uname.':'.$udom;
$cachedcid=$env{'request.course.id'};
%cachedblockers = &get_commblock_resources();
return;
}

sub get_comm_blocks {	sub get_comm_blocks {
my ($cdom,$cnum) = @_;	my ($cdom,$cnum) = @_;
if ($cdom eq '' \|\| $cnum eq '') {	if ($cdom eq '' \|\| $cnum eq '') {
Line 8431 sub get_comm_blocks {	Line 7107 sub get_comm_blocks {
return %commblocks;	return %commblocks;
}	}

sub get_commblock_resources {	sub has_comm_blocking {
my ($blocks) = @_;	my ($priv,$symb,$uri,$blocks) = @_;
my %blockers = ();	return unless ($env{'request.course.id'});
return %blockers unless ($env{'request.course.id'});	return unless ($priv eq 'bre');
return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);	return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
my %commblocks;	my %commblocks;
if (ref($blocks) eq 'HASH') {	if (ref($blocks) eq 'HASH') {
%commblocks = %{$blocks};	%commblocks = %{$blocks};
} else {	} else {
%commblocks = &get_comm_blocks();	%commblocks = &get_comm_blocks();
}	}
return %blockers unless (keys(%commblocks) > 0);	return unless (keys(%commblocks) > 0);
my $navmap = Apache::lonnavmaps::navmap->new();	if (!$symb) { $symb=&symbread($uri,1); }
return %blockers unless (ref($navmap));	my ($map,$resid,undef)=&decode_symb($symb);
	my %tocheck = (
	maps => $map,
	resources => $symb,
	);
	my @blockers;
my $now = time;	my $now = time;
	my $navmap = Apache::lonnavmaps::navmap->new();
foreach my $block (keys(%commblocks)) {	foreach my $block (keys(%commblocks)) {
if ($block =~ /^(\d+)____(\d+)$/) {	if ($block =~ /^(\d+)____(\d+)$/) {
my ($start,$end) = ($1,$2);	my ($start,$end) = ($1,$2);
Line 8453 sub get_commblock_resources {	Line 7135 sub get_commblock_resources {
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {	if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};	unless (grep(/^\Q$block\E$/,@blockers)) {
	push(@blockers,$block);
	}
}	}
}	}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {	if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};	unless (grep(/^\Q$block\E$/,@blockers)) {
	push(@blockers,$block);
	}
}	}
}	}
}	}
Line 8470 sub get_commblock_resources {	Line 7156 sub get_commblock_resources {
my @to_test;	my @to_test;
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
my @interval;	my $check_interval;
my $type = 'map';	if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
if ($item eq 'course') {	my @interval;
$type = 'course';	my $type = 'map';
@interval=&EXT("resource.0.interval");	if ($item eq 'course') {
} else {	$type = 'course';
if ($item =~ /___\d+___/) {	@interval=&EXT("resource.0.interval");
$type = 'resource';
@interval=&EXT("resource.0.interval",$item);
if (ref($navmap)) {
my $res = $navmap->getBySymb($item);
push(@to_test,$res);
}
} else {	} else {
my $mapsymb = &symbread($item,1);	if ($item =~ /___\d+___/) {
if ($mapsymb) {	$type = 'resource';
if (ref($navmap)) {	@interval=&EXT("resource.0.interval",$item);
my $mapres = $navmap->getBySymb($mapsymb);	if (ref($navmap)) {
if (ref($mapres)) {	my $res = $navmap->getBySymb($item);
my $first = $mapres->map_start();	push(@to_test,$res);
my $finish = $mapres->map_finish();	}
my $it = $navmap->getIterator($first,$finish,undef,0,0);	} else {
if (ref($it)) {	my $mapsymb = &symbread($item,1);
my $res;	if ($mapsymb) {
while ($res = $it->next(undef,1)) {	if (ref($navmap)) {
next unless (ref($res));	my $mapres = $navmap->getBySymb($mapsymb);
my $symb = $res->symb();	@to_test = $mapres->retrieveResources($mapres,undef,0,1);
next if (($symb eq $mapsymb) \|\| ($symb eq ''));	foreach my $res (@to_test) {
	my $symb = $res->symb();
	next if ($symb eq $mapsymb);
	if ($symb ne '') {
@interval=&EXT("resource.0.interval",$symb);	@interval=&EXT("resource.0.interval",$symb);
if ($interval[1] eq 'map') {	last;
if ($res->answerable()) {
push(@to_test,$res);
last;
}
}
}	}
}	}
}	}
}	}
}	}
}	}
}	if ($interval[0] =~ /\d+/) {
if ($interval[0] =~ /^\d+$/) {	my $first_access;
my $first_access;	if ($type eq 'resource') {
if ($type eq 'resource') {	$first_access=&get_first_access($interval[1],$item);
$first_access=&get_first_access($interval[1],$item);	} elsif ($type eq 'map') {
} elsif ($type eq 'map') {	$first_access=&get_first_access($interval[1],undef,$item);
$first_access=&get_first_access($interval[1],undef,$item);	} else {
} else {	$first_access=&get_first_access($interval[1]);
$first_access=&get_first_access($interval[1]);	}
}	if ($first_access) {
if ($first_access) {	my $timesup = $first_access+$interval[0];
my $timesup = $first_access+$interval[0];	if ($timesup > $now) {
if ($timesup > $now) {	foreach my $res (@to_test) {
my $activeblock;	if ($res->is_problem()) {
foreach my $res (@to_test) {	if ($res->completable()) {
if ($res->answerable()) {	unless (grep(/^\Q$block\E$/,@blockers)) {
$activeblock = 1;	push(@blockers,$block);
last;	}
}	last;
}	}
if ($activeblock) {
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
$blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
}
}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
}	}
}	}
}	}
Line 8550 sub get_commblock_resources {	Line 7219 sub get_commblock_resources {
}	}
}	}
}	}
return %blockers;	return @blockers;
}	}

sub has_comm_blocking {	sub check_docs_block {
my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_;	my ($docsblock,$tocheck) =@_;
my @blockers;	if ((ref($docsblock) ne 'HASH') \|\| (ref($tocheck) ne 'HASH')) {
return unless ($env{'request.course.id'});	return;
return unless ($priv eq 'bre');
return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
return if ($env{'request.state'} eq 'construct');
my %blockinfo;
if (ref($blocks) eq 'HASH') {
%blockinfo = &get_commblock_resources($blocks);
} else {
&load_all_blockers($env{'user.name'},$env{'user.domain'});
%blockinfo = %cachedblockers;
}
return unless (keys(%blockinfo) > 0);
my (%possibles,@symbs);
if (!$symb) {
$symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck);
}	}
if ($symb) {	if (ref($docsblock->{'maps'}) eq 'HASH') {
@symbs = ($symb);	if ($tocheck->{'maps'}) {
} elsif (keys(%possibles)) {	if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
@symbs = keys(%possibles);	return 1;
}
my $noblock;
foreach my $symb (@symbs) {
last if ($noblock);
my ($map,$resid,$resurl)=&decode_symb($symb);
foreach my $block (keys(%blockinfo)) {
if ($block =~ /^firstaccess____(.+)$/) {
my $item = $1;
unless ($blocked) {
if (($item eq $map) \|\| ($item eq $symb)) {
$noblock = 1;
last;
}
}
}
if (ref($blockinfo{$block}) eq 'HASH') {
if (ref($blockinfo{$block}{'resources'}) eq 'HASH') {
if ($blockinfo{$block}{'resources'}{$symb}) {
unless (grep(/^\Q$block\E$/,@blockers)) {
push(@blockers,$block);
}
}
}
if (ref($blockinfo{$block}{'maps'}) eq 'HASH') {
if ($blockinfo{$block}{'maps'}{$map}) {
unless (grep(/^\Q$block\E$/,@blockers)) {
push(@blockers,$block);
}
}
}
}	}
}	}
}	}
unless ($noblock) {	if (ref($docsblock->{'resources'}) eq 'HASH') {
return @blockers;	if ($tocheck->{'resources'}) {
	if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
	return 1;
	}
	}
}	}
return;	return;
}	}
}

# -------------------------------- Deversion and split uri into path an filename

#	#
# Removes the version from a URI and	# Removes the versino from a URI and
# splits it in to its filename and path to the filename.	# splits it in to its filename and path to the filename.
# Seems like File::Basename could have done this more clearly.	# Seems like File::Basename could have done this more clearly.
# Parameters:	# Parameters:
Line 8687 sub get_symb_from_alias {	Line 7313 sub get_symb_from_alias {

sub definerole {	sub definerole {
if (allowed('mcr','/')) {	if (allowed('mcr','/')) {
my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;	my ($rolename,$sysrole,$domrole,$courole)=@_;
foreach my $role (split(':',$sysrole)) {	foreach my $role (split(':',$sysrole)) {
my ($crole,$cqual)=split(/\&/,$role);	my ($crole,$cqual)=split(/\&/,$role);
if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }	if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
Line 8715 sub definerole {	Line 7341 sub definerole {
}	}
}	}
}	}
my $uhome;
if (($uname ne '') && ($udom ne '')) {
$uhome = &homeserver($uname,$udom);
return $uhome if ($uhome eq 'no_host');
} else {
$uname = $env{'user.name'};
$udom = $env{'user.domain'};
$uhome = $env{'user.home'};
}
my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".	my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
"$udom:$uname:rolesdef_$rolename=".	"$env{'user.domain'}:$env{'user.name'}:".
	"rolesdef_$rolename=".
escape($sysrole.'_'.$domrole.'_'.$courole);	escape($sysrole.'_'.$domrole.'_'.$courole);
return reply($command,$uhome);	return reply($command,$env{'user.home'});
} else {	} else {
return 'refused';	return 'refused';
}	}
Line 8742 sub metadata_query {	Line 7360 sub metadata_query {
my @server_list = (defined($server_array) ? @$server_array	my @server_list = (defined($server_array) ? @$server_array
: keys(%libserv) );	: keys(%libserv) );
for my $server (@server_list) {	for my $server (@server_list) {
my $domains = '';	my $domains = '';
if (ref($domains_hash) eq 'HASH') {	if (ref($domains_hash) eq 'HASH') {
$domains = $domains_hash->{$server};	$domains = $domains_hash->{$server};
}	}
unless ($custom or $customshow) {	unless ($custom or $customshow) {
my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);	my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
Line 8809 sub update_allusers_table {	Line 7427 sub update_allusers_table {

sub fetch_enrollment_query {	sub fetch_enrollment_query {
my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;	my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
my ($homeserver,$sleep,$loopmax);	my $homeserver;
my $maxtries = 1;	my $maxtries = 1;
if ($context eq 'automated') {	if ($context eq 'automated') {
$homeserver = $perlvar{'lonHostID'};	$homeserver = $perlvar{'lonHostID'};
$sleep = 2;
$loopmax = 100;
$maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout	$maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
} else {	} else {
$homeserver = &homeserver($cnum,$dom);	$homeserver = &homeserver($cnum,$dom);
Line 8832 sub fetch_enrollment_query {	Line 7448 sub fetch_enrollment_query {
&logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);	&logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
return 'error: '.$queryid;	return 'error: '.$queryid;
}	}
my $reply = &get_query_reply($queryid,$sleep,$loopmax);	my $reply = &get_query_reply($queryid);
my $tries = 1;	my $tries = 1;
while (($reply=~/^timeout/) && ($tries < $maxtries)) {	while (($reply=~/^timeout/) && ($tries < $maxtries)) {
$reply = &get_query_reply($queryid,$sleep,$loopmax);	$reply = &get_query_reply($queryid);
$tries ++;	$tries ++;
}	}
if ( ($reply =~/^timeout/) \|\| ($reply =~/^error/) ) {	if ( ($reply =~/^timeout/) \|\| ($reply =~/^error/) ) {
&logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);	&logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
} else {	} else {
my @responses = split(/:/,$reply);	my @responses = split(/:/,$reply);
if (grep { $_ eq $homeserver } &current_machine_ids()) {	if ($homeserver eq $perlvar{'lonHostID'}) {
foreach my $line (@responses) {	foreach my $line (@responses) {
my ($key,$value) = split(/=/,$line,2);	my ($key,$value) = split(/=/,$line,2);
$$replyref{$key} = $value;	$$replyref{$key} = $value;
Line 8860 sub fetch_enrollment_query {	Line 7476 sub fetch_enrollment_query {
if ($xml_classlist =~ /^error/) {	if ($xml_classlist =~ /^error/) {
&logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);	&logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
} else {	} else {
if ( open(FILE,">",$destname) ) {	if ( open(FILE,">$destname") ) {
print FILE &unescape($xml_classlist);	print FILE &unescape($xml_classlist);
close(FILE);	close(FILE);
} else {	} else {
Line 8877 sub fetch_enrollment_query {	Line 7493 sub fetch_enrollment_query {
}	}

sub get_query_reply {	sub get_query_reply {
my ($queryid,$sleep,$loopmax) = @_;	my $queryid=shift;
if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {
$sleep = 0.2;
}
if (($loopmax eq '') \|\| ($loopmax =~ /\D/)) {
$loopmax = 100;
}
my $replyfile=LONCAPA::tempdir().$queryid;	my $replyfile=LONCAPA::tempdir().$queryid;
my $reply='';	my $reply='';
for (1..$loopmax) {	for (1..100) {
sleep($sleep);	sleep 2;
if (-e $replyfile.'.end') {	if (-e $replyfile.'.end') {
if (open(my $fh,"<",$replyfile)) {	if (open(my $fh,$replyfile)) {
$reply = join('',<$fh>);	$reply = join('',<$fh>);
close($fh);	close($fh);
} else { return 'error: reply_file_error'; }	} else { return 'error: reply_file_error'; }
Line 9281 sub auto_validate_class_sec {	Line 7891 sub auto_validate_class_sec {
return $response;	return $response;
}	}

sub auto_validate_instclasses {
my ($cdom,$cnum,$owners,$classesref) = @_;
my ($homeserver,%validations);
$homeserver = &homeserver($cnum,$cdom);
unless ($homeserver eq 'no_host') {
my $ownerlist;
if (ref($owners) eq 'ARRAY') {
$ownerlist = join(',',@{$owners});
} else {
$ownerlist = $owners;
}
if (ref($classesref) eq 'HASH') {
my $classes = &freeze_escape($classesref);
my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
':'.$cdom.':'.$classes,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$validations{&unescape($key)} = &thaw_unescape($value);
}
}
}
}
return %validations;
}

sub auto_crsreq_update {	sub auto_crsreq_update {
my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,	my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
$code,$accessstart,$accessend,$inbound) = @_;	$code,$inbound) = @_;
my ($homeserver,%crsreqresponse);	my ($homeserver,%crsreqresponse);
if ($cdom =~ /^$match_domain$/) {	if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');	$homeserver = &domain($cdom,'primary');
Line 9323 sub auto_crsreq_update {	Line 7906 sub auto_crsreq_update {
my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).	my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
':'.&escape($action).':'.&escape($ownername).':'.	':'.&escape($action).':'.&escape($ownername).':'.
&escape($ownerdomain).':'.&escape($fullname).':'.	&escape($ownerdomain).':'.&escape($fullname).':'.
&escape($title).':'.&escape($code).':'.	&escape($title).':'.&escape($code).':'.$info,$homeserver);
&escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {	unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);	my @items = split(/&/,$response);
foreach my $item (@items) {	foreach my $item (@items) {
Line 9336 sub auto_crsreq_update {	Line 7918 sub auto_crsreq_update {
return \%crsreqresponse;	return \%crsreqresponse;
}	}

sub auto_export_grades {
my ($cdom,$cnum,$inforef,$gradesref) = @_;
my ($homeserver,%exportresponse);
if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');
}
unless (($homeserver eq 'no_host') \|\| ($homeserver eq '')) {
my $info;
if (ref($inforef) eq 'HASH') {
$info = &freeze_escape($inforef);
}
if (ref($gradesref) eq 'HASH') {
my $grades = &freeze_escape($gradesref);
my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
$info.':'.$grades,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused\|unknown_command)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$exportresponse{&unescape($key)} = &thaw_unescape($value);
}
}
}
}
return \%exportresponse;
}

sub check_instcode_cloning {
my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
return;
}
my $canclone;
if (@{$code_order} > 0) {
my $instcoderegexp ='^';
my @clonecodes = split(/\&/,$cloner);
foreach my $item (@{$code_order}) {
if (grep(/^\Q$item\E=/,@clonecodes)) {
foreach my $pair (@clonecodes) {
my ($key,$val) = split(/\=/,$pair,2);
$val = &unescape($val);
if ($key eq $item) {
$instcoderegexp .= '('.$val.')';
last;
}
}
} else {
$instcoderegexp .= $codedefaults->{$item};
}
}
$instcoderegexp .= '$';
my (@from,@to);
eval {
(@from) = ($clonefromcode =~ /$instcoderegexp/);
(@to) = ($clonetocode =~ /$instcoderegexp/);
};
if ((@from > 0) && (@to > 0)) {
my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
if (!@diffs) {
$canclone = 1;
}
}
}
return $canclone;
}

sub default_instcode_cloning {
my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
my (%codedefaults,@code_order,$canclone);
if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
%codedefaults = %{$codedefaultsref};
@code_order = @{$codeorderref};
} elsif ($clonedom) {
&auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
}
if (($domdefclone) && (@code_order)) {
my @clonecodes = split(/\+/,$domdefclone);
my $instcoderegexp ='^';
foreach my $item (@code_order) {
if (grep(/^\Q$item\E$/,@clonecodes)) {
$instcoderegexp .= '('.$codedefaults{$item}.')';
} else {
$instcoderegexp .= $codedefaults{$item};
}
}
$instcoderegexp .= '$';
my (@from,@to);
eval {
(@from) = ($clonefromcode =~ /$instcoderegexp/);
(@to) = ($clonetocode =~ /$instcoderegexp/);
};
if ((@from > 0) && (@to > 0)) {
my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
if (!@diffs) {
$canclone = 1;
}
}
}
return $canclone;
}

# ------------------------------------------------------- Course Group routines	# ------------------------------------------------------- Course Group routines

sub get_coursegroups {	sub get_coursegroups {
Line 9705 sub assignrole {	Line 8186 sub assignrole {
}	}
}	}
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&	if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
($url eq '/'.$udom.'/') && ($role eq 'au')) {	($url eq '/'.$udom.'/') && ($role eq 'au')) {
if ($env{'environment.requestauthor'} eq 'automatic') {	if ($env{'environment.requestauthor'} eq 'automatic') {
$refused = '';	$refused = '';
Line 9713 sub assignrole {	Line 8194 sub assignrole {
my %domdefaults = &get_domain_defaults($udom);	my %domdefaults = &get_domain_defaults($udom);
if (ref($domdefaults{'requestauthor'}) eq 'HASH') {	if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
my $checkbystatus;	my $checkbystatus;
if ($env{'user.adv'}) {	if ($env{'user.adv'}) {
my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};	my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
if ($disposition eq 'automatic') {	if ($disposition eq 'automatic') {
$refused = '';	$refused = '';
} elsif ($disposition eq '') {	} elsif ($disposition eq '') {
$checkbystatus = 1;	$checkbystatus = 1;
}	}
} else {	} else {
$checkbystatus = 1;	$checkbystatus = 1;
}	}
Line 9801 sub assignrole {	Line 8282 sub assignrole {
&courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$selfenroll,$context);	$selfenroll,$context);
} elsif (($role eq 'li') \|\| ($role eq 'dg') \|\| ($role eq 'sc') \|\|	} elsif (($role eq 'li') \|\| ($role eq 'dg') \|\| ($role eq 'sc') \|\|
($role eq 'au') \|\| ($role eq 'dc') \|\| ($role eq 'dh') \|\|	($role eq 'au') \|\| ($role eq 'dc')) {
($role eq 'da')) {
&domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$context);	$context);
} elsif (($role eq 'ca') \|\| ($role eq 'aa')) {	} elsif (($role eq 'ca') \|\| ($role eq 'aa')) {
&coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$context);	$context);
}	}
if ($role eq 'cc') {	if ($role eq 'cc') {
&autoupdate_coowners($url,$end,$start,$uname,$udom);	&autoupdate_coowners($url,$end,$start,$uname,$udom);
Line 9906 sub store_coowners {	Line 8386 sub store_coowners {
sub modifyuserauth {	sub modifyuserauth {
my ($udom,$uname,$umode,$upass)=@_;	my ($udom,$uname,$umode,$upass)=@_;
my $uhome=&homeserver($uname,$udom);	my $uhome=&homeserver($uname,$udom);
my $allowed;	unless (&allowed('mau',$udom)) { return 'refused'; }
if (&allowed('mau',$udom)) {
$allowed = 1;
} elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) &&
($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) &&
(!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if (($cdom ne '') && ($cnum ne '')) {
my $is_owner = &is_course_owner($cdom,$cnum);
if ($is_owner) {
$allowed = 1;
}
}
}
unless ($allowed) { return 'refused'; }
&logthis('Call to modify user authentication '.$udom.', '.$uname.', '.	&logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
$umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.	$umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
' in domain '.$env{'request.role.domain'});	' in domain '.$env{'request.role.domain'});
Line 10122 sub modifyuser {	Line 8587 sub modifyuser {
sub modifystudent {	sub modifystudent {
my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,	my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,	$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
$selfenroll,$context,$inststatus,$credits,$instsec)=@_;	$selfenroll,$context,$inststatus,$credits)=@_;
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
return 'not_in_class';	return 'not_in_class';
Line 10137 sub modifystudent {	Line 8602 sub modifystudent {
# student's environment	# student's environment
$uid = undef if (!$forceid);	$uid = undef if (!$forceid);
$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,	$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
$gene,$usec,$end,$start,$type,$locktype,	$gene,$usec,$end,$start,$type,$locktype,
$cid,$selfenroll,$context,$credits,$instsec);	$cid,$selfenroll,$context,$credits);
return $reply;	return $reply;
}	}

sub modify_student_enrollment {	sub modify_student_enrollment {
my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,	my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
$locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_;	$locktype,$cid,$selfenroll,$context,$credits) = @_;
my ($cdom,$cnum,$chome);	my ($cdom,$cnum,$chome);
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
Line 10191 sub modify_student_enrollment {	Line 8656 sub modify_student_enrollment {
my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);	my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
my $reply=cput('classlist',	my $reply=cput('classlist',
{$user =>	{$user =>
join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },	join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits) },
$cdom,$cnum);	$cdom,$cnum);
if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {	if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {
&devalidate_getsection_cache($udom,$uname,$cid);	&devalidate_getsection_cache($udom,$uname,$cid);
Line 10414 sub generate_coursenum {	Line 8879 sub generate_coursenum {
sub is_course {	sub is_course {
my ($cdom, $cnum) = scalar(@_) == 1 ?	my ($cdom, $cnum) = scalar(@_) == 1 ?
($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;	($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
my $uhome=&homeserver($cnum,$cdom);	return unless $cdom and $cnum;
my $iscourse;
if (grep { $_ eq $uhome } current_machine_ids()) {	my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
$iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);	'.');
} else {
my $hashid = $cdom.':'.$cnum;	return unless(exists($courses{$cdom.'_'.$cnum}));
($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
unless (defined($cached)) {
my %courses = &courseiddump($cdom, '.', 1, '.', '.',
$cnum,undef,undef,'.');
$iscourse = 0;
if (exists($courses{$cdom.'_'.$cnum})) {
$iscourse = 1;
}
&do_cache_new('iscourse',$hashid,$iscourse,3600);
}
}
return unless($iscourse);
return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;	return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
}	}

Line 10568 sub save_selected_files {	Line 9021 sub save_selected_files {
my ($user, $path, @files) = @_;	my ($user, $path, @files) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my @other_files = &files_not_in_path($user, $path);	my @other_files = &files_not_in_path($user, $path);
open (OUT,'>',LONCAPA::tempdir().$filename);	open (OUT, '>'.$tmpdir.$filename);
foreach my $file (@files) {	foreach my $file (@files) {
print (OUT $env{'form.currentpath'}.$file."\n");	print (OUT $env{'form.currentpath'}.$file."\n");
}	}
Line 10582 sub save_selected_files {	Line 9035 sub save_selected_files {
sub clear_selected_files {	sub clear_selected_files {
my ($user) = @_;	my ($user) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
open (OUT,'>',LONCAPA::tempdir().$filename);	open (OUT, '>'.LONCAPA::tempdir().$filename);
print (OUT undef);	print (OUT undef);
close (OUT);	close (OUT);
return ("ok");	return ("ok");
Line 10592 sub files_in_path {	Line 9045 sub files_in_path {
my ($user, $path) = @_;	my ($user, $path) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my %return_files;	my %return_files;
open (IN,'<',LONCAPA::tempdir().$filename);	open (IN, '<'.LONCAPA::tempdir().$filename);
while (my $line_in = <IN>) {	while (my $line_in = <IN>) {
chomp ($line_in);	chomp ($line_in);
my @paths_and_file = split (m!/!, $line_in);	my @paths_and_file = split (m!/!, $line_in);
Line 10614 sub files_not_in_path {	Line 9067 sub files_not_in_path {
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my @return_files;	my @return_files;
my $path_part;	my $path_part;
open(IN, '<',LONCAPA::tempdir().$filename);	open(IN, '<'.LONCAPA::.$filename);
while (my $line = <IN>) {	while (my $line = <IN>) {
#ok, I know it's clunky, but I want it to work	#ok, I know it's clunky, but I want it to work
my @paths_and_file = split(m\|/\|, $line);	my @paths_and_file = split(m\|/\|, $line);
Line 10727 sub modify_access_controls {	Line 9180 sub modify_access_controls {
my $tries = 0;	my $tries = 0;
my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);	my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);

while (($gotlock ne 'ok') && $tries < 10) {	while (($gotlock ne 'ok') && $tries <3) {
$tries ++;	$tries ++;
sleep(0.1);	sleep 1;
$gotlock = &newput('file_permissions',$lockhash,$domain,$user);	$gotlock = &newput('file_permissions',$lockhash,$domain,$user);
}	}
if ($gotlock eq 'ok') {	if ($gotlock eq 'ok') {
Line 11022 sub dirlist {	Line 9475 sub dirlist {
foreach my $user (sort(keys(%allusers))) {	foreach my $user (sort(keys(%allusers))) {
push(@alluserslist,$user.'&user');	push(@alluserslist,$user.'&user');
}	}
if (!%listerror) {	return (\@alluserslist);
# no errors
return (\@alluserslist);
} elsif (scalar(keys(%servers)) == 1) {
# one library server, one error
my ($key) = keys(%listerror);
return (\@alluserslist, $listerror{$key});
} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
# con_lost indicates that we might miss data from at least one
# library server
return (\@alluserslist, 'con_lost');
} else {
# multiple library servers and no con_lost -> data should be
# complete.
return (\@alluserslist);
}

} else {	} else {
return ([],'missing username');	return ([],'missing username');
}	}
Line 11255 sub get_userresdata {	Line 9692 sub get_userresdata {
}	}
#error 2 occurs when the .db doesn't exist	#error 2 occurs when the .db doesn't exist
if ($tmp!~/error: 2 /) {	if ($tmp!~/error: 2 /) {
if ((!defined($cached)) \|\| ($tmp ne 'con_lost')) {	&logthis("<font color=\"blue\">WARNING:".
&logthis("<font color=\"blue\">WARNING:".	" Trying to get resource data for ".
" Trying to get resource data for ".	$uname." at ".$udom.": ".
$uname." at ".$udom.": ".	$tmp."</font>");
$tmp."</font>");
}
} elsif ($tmp=~/error: 2 /) {	} elsif ($tmp=~/error: 2 /) {
#&EXT_cache_set($udom,$uname);	#&EXT_cache_set($udom,$uname);
&do_cache_new('userres',$hashid,undef,600);	&do_cache_new('userres',$hashid,undef,600);
Line 11312 sub get_numsuppfiles {	Line 9747 sub get_numsuppfiles {
unless ($chome eq 'no_host') {	unless ($chome eq 'no_host') {
($suppcount,my $errors) = (0,0);	($suppcount,my $errors) = (0,0);
my $suppmap = 'supplemental.sequence';	my $suppmap = 'supplemental.sequence';
($suppcount,$errors) =	($suppcount,$errors) =
&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);	&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
}	}
&do_cache_new('suppcount',$hashid,$suppcount,600);	&do_cache_new('suppcount',$hashid,$suppcount,600);
Line 11507 sub EXT {	Line 9942 sub EXT {
$courseid = $cid;	$courseid = $cid;
}	}
if (($symbparm && $courseid) &&	if (($symbparm && $courseid) &&
(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {	(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {

#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;	#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;

Line 11748 sub add_prefix_and_part {	Line 10183 sub add_prefix_and_part {

my %metaentry;	my %metaentry;
my %importedpartids;	my %importedpartids;
my %importedrespids;
sub metadata {	sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;	my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);	$uri=&declutter($uri);
Line 11759 sub metadata {	Line 10193 sub metadata {
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;	return undef;
}	}
if (($uri =~ /^priv/ \|\| $uri=~m{^home/httpd/html/priv})	if (($uri =~ /^priv/ \|\| $uri=~/home\/httpd\/html\/priv/)
&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {	&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {
return undef;	return undef;
}	}
Line 11776 sub metadata {	Line 10210 sub metadata {
}	}
{	{
# Imported parts would go here	# Imported parts would go here
my @origfiletagids=();	my %importedids=();
	my @origfileimportpartids=();
my $importedparts=0;	my $importedparts=0;

# Imported responseids would go here
my $importedresponses=0;
#	#
# Is this a recursive call for a library?	# Is this a recursive call for a library?
#	#
Line 11875 sub metadata {	Line 10307 sub metadata {
my $dir=$filename;	my $dir=$filename;
$dir=~s\|[^/]*$\|\|;	$dir=~s\|[^/]*$\|\|;
$location=&filelocation($dir,$location);	$location=&filelocation($dir,$location);

my $importid=$token->[2]->{'id'};
my $importmode=$token->[2]->{'importmode'};	my $importmode=$token->[2]->{'importmode'};
#
# Check metadata for imported file to
# see if it contained response items
#
my %currmetaentry = %metaentry;
my $libresponseorder = &metadata($location,'responseorder');
my $origfile;
if ($libresponseorder ne '') {
if ($#origfiletagids<0) {
undef(%importedrespids);
undef(%importedpartids);
}
@{$importedrespids{$importid}} = split(/\s,\s/,$libresponseorder);
if (@{$importedrespids{$importid}} > 0) {
$importedresponses = 1;
# We need to get the original file and the imported file to get the response order correct
# Load and inspect original file
if ($#origfiletagids<0) {
my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
$origfile=&getfile($origfilelocation);
@origfiletagids=($origfile=~/<((?:\w+)response\|import\|part)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
}
}
}
# Do not overwrite contents of %metaentry hash for resource itself with
# hash populated for imported library file
%metaentry = %currmetaentry;
undef(%currmetaentry);
if ($importmode eq 'problem') {	if ($importmode eq 'problem') {
# Import as problem/response	# Import as problem/response
$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});	$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
Line 11914 sub metadata {	Line 10317 sub metadata {
$importedparts=1;	$importedparts=1;
# We need to get the original file and the imported file to get the part order correct	# We need to get the original file and the imported file to get the part order correct
# Good news: we do not need to worry about nested libraries, since parts cannot be nested	# Good news: we do not need to worry about nested libraries, since parts cannot be nested
# Load and inspect original file if we didn't do that already	# Load and inspect original file
if ($#origfiletagids<0) {	if ($#origfileimportpartids<0) {
undef(%importedrespids);	undef(%importedpartids);
undef(%importedpartids);	my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
if ($origfile eq '') {	my $origfile=&getfile($origfilelocation);
my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);	@origfileimportpartids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
$origfile=&getfile($origfilelocation);
@origfiletagids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
}
}	}

# Load and inspect imported file	# Load and inspect imported file
Line 12036 sub metadata {	Line 10436 sub metadata {
grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));	grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
$metaentry{':packages'} = join(',',@uniq_packages);	$metaentry{':packages'} = join(',',@uniq_packages);

if (($importedresponses) \|\| ($importedparts)) {	if ($importedparts) {
if ($importedparts) {
# We had imported parts and need to rebuild partorder	# We had imported parts and need to rebuild partorder
$metaentry{':partorder'}='';	$metaentry{':partorder'}='';
$metathesekeys{'partorder'}=1;	$metathesekeys{'partorder'}=1;
}	for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
if ($importedresponses) {	if ($origfileimportpartids[$index] eq 'part') {
# We had imported responses and need to rebuild responseorder	# original part, part of the problem
$metaentry{':responseorder'}='';	$metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
$metathesekeys{'responseorder'}=1;	} else {
}	# we have imported parts at this position
for (my $index=0;$index<$#origfiletagids;$index+=2) {	$metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
my $origid = $origfiletagids[$index+1];	}
if ($origfiletagids[$index] eq 'part') {	}
# Original part, part of the problem	$metaentry{':partorder'}=~s/^\,//;
if ($importedparts) {
$metaentry{':partorder'}.=','.$origid;
}
} elsif ($origfiletagids[$index] eq 'import') {
if ($importedparts) {
# We have imported parts at this position
$metaentry{':partorder'}.=','.$importedpartids{$origid};
}
if ($importedresponses) {
# We have imported responses at this position
if (ref($importedrespids{$origid}) eq 'ARRAY') {
$metaentry{':responseorder'}.=','.join(',',map { $origid.'_'.$_ } @{$importedrespids{$origid}});
}
}
} else {
# Original response item, part of the problem
if ($importedresponses) {
$metaentry{':responseorder'}.=','.$origid;
}
}
}
if ($importedparts) {
$metaentry{':partorder'}=~s/^\,//;
}
if ($importedresponses) {
$metaentry{':responseorder'}=~s/^\,//;
}
}	}

$metaentry{':keys'} = join(',',keys(%metathesekeys));	$metaentry{':keys'} = join(',',keys(%metathesekeys));
&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
$metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
&do_cache_new('meta',$uri,\%metaentry,$cachetime);	&do_cache_new('meta',$uri,\%metaentry,$cachetime);
# this is the end of "was not already recently cached	# this is the end of "was not already recently cached
}	}
Line 12342 sub symbverify {	Line 10714 sub symbverify {

if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',	if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640)) {	&GDBM_READER(),0640)) {
	my $noclutter;
if (($thisurl =~ m{^/adm/wrapper/ext/}) \|\| ($thisurl =~ m{^ext/})) {	if (($thisurl =~ m{^/adm/wrapper/ext/}) \|\| ($thisurl =~ m{^ext/})) {
$thisurl =~ s/\?.+$//;	$thisurl =~ s/\?.+$//;
if ($map =~ m{^uploaded/.+\.page$}) {	if ($map =~ m{^uploaded/.+\.page$}) {
$thisurl =~ s{^(/adm/wrapper\|)/ext/}{http://};	$thisurl =~ s{^(/adm/wrapper\|)/ext/}{http://};
$thisurl =~ s{^\Qhttp://https://\E}{https://};	$thisurl =~ s{^\Qhttp://https://\E}{https://};
	$noclutter = 1;
}	}
}	}
my $ids;	my $ids;
if ($map =~ m{^uploaded/.+\.page$}) {	if ($noclutter) {
$ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)};	$ids=$bighash{'ids_'.$thisurl};
} else {	} else {
$ids=$bighash{'ids_'.&clutter($thisurl)};	$ids=$bighash{'ids_'.&clutter($thisurl)};
}	}
unless ($ids) {	unless ($ids) {
my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;	my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
$ids=$bighash{$idkey};	$ids=$bighash{$idkey};
}	}
if ($ids) {	if ($ids) {
Line 12372 sub symbverify {	Line 10746 sub symbverify {
if (ref($encstate)) {	if (ref($encstate)) {
$$encstate = $bighash{'encrypted_'.$id};	$$encstate = $bighash{'encrypted_'.$id};
}	}
if (($env{'request.role.adv'}) \|\|	if (($env{'request.role.adv'}) \|\|
($bighash{'encrypted_'.$id} eq $env{'request.enc'}) \|\|	($bighash{'encrypted_'.$id} eq $env{'request.enc'}) \|\|
($thisurl eq '/adm/navmaps')) {	($thisurl eq '/adm/navmaps')) {
$okay=1;	$okay=1;
last;	last;
}	}
}	}
}	}
}	}
untie(%bighash);	untie(%bighash);
}	}
Line 12451 sub deversion {	Line 10825 sub deversion {
# ------------------------------------------------------ Return symb list entry	# ------------------------------------------------------ Return symb list entry

sub symbread {	sub symbread {
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles,	my ($thisfn,$donotrecurse)=@_;
$ignoresymbdb,$noenccheck)=@_;	my $cache_str;
my $cache_str='request.symbread.cached.'.$thisfn;	if ($thisfn ne '') {
if (defined($env{$cache_str})) {	$cache_str='request.symbread.cached.'.$thisfn;
unless (ref($possibles) eq 'HASH') {	if ($env{$cache_str} ne '') {
if ($ignorecachednull) {	return $env{$cache_str};
return $env{$cache_str} unless ($env{$cache_str} eq '');
} else {
return $env{$cache_str};
}
}	}
}	} else {
# no filename provided? try from environment	# no filename provided? try from environment
unless ($thisfn) {
if ($env{'request.symb'}) {	if ($env{'request.symb'}) {
return $env{$cache_str}=&symbclean($env{'request.symb'});	return $env{$cache_str}=&symbclean($env{'request.symb'});
}	}
$thisfn=$env{'request.filename'};	$thisfn=$env{'request.filename'};
}	}
if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }	if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
# is that filename actually a symb? Verify, clean, and return	# is that filename actually a symb? Verify, clean, and return
Line 12489 sub symbread {	Line 10858 sub symbread {
if ($targetfn =~ m\|^adm/wrapper/(ext/.*)\|) {	if ($targetfn =~ m\|^adm/wrapper/(ext/.*)\|) {
$targetfn=$1;	$targetfn=$1;
}	}
unless ($ignoresymbdb) {	if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',	&GDBM_READER(),0640)) {
&GDBM_READER(),0640)) {	$syval=$hash{$targetfn};
$syval=$hash{$targetfn};	untie(%hash);
untie(%hash);
}
if ($syval && $checkforblock) {
my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck);
if (@blockers) {
$syval='';
}
}
}	}
# ---------------------------------------------------------- There was an entry	# ---------------------------------------------------------- There was an entry
if ($syval) {	if ($syval) {
Line 12532 sub symbread {	Line 10893 sub symbread {
my ($mapid,$resid)=split(/\./,$ids);	my ($mapid,$resid)=split(/\./,$ids);
$syval=&encode_symb($bighash{'map_id_'.$mapid},	$syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);	$resid,$thisfn);
if (ref($possibles) eq 'HASH') {	} elsif (!$donotrecurse) {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {
$possibles->{$syval} = 1;
}
}
if ($checkforblock) {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck);
if (@blockers) {
$syval = '';
untie(%bighash);
return $env{$cache_str}='';
}
}
}
} elsif ((!$donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {
# ------------------------------------------ There is more than one possibility	# ------------------------------------------ There is more than one possibility
my $realpossible=0;	my $realpossible=0;
foreach my $id (@possibilities) {	foreach my $id (@possibilities) {
my $file=$bighash{'src_'.$id};	my $file=$bighash{'src_'.$id};
my $canaccess;	if (&allowed('bre',$file)) {
if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	my ($mapid,$resid)=split(/\./,$id);
$canaccess = 1;	if ($bighash{'map_type_'.$mapid} ne 'page') {
} else {	$realpossible++;
$canaccess = &allowed('bre',$file);	$syval=&encode_symb($bighash{'map_id_'.$mapid},
}	$resid,$thisfn);
if ($canaccess) {	}
my ($mapid,$resid)=split(/\./,$id);
if ($bighash{'map_type_'.$mapid} ne 'page') {
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);
next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});
next unless (($noenccheck) \|\| ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));
if ($checkforblock) {
my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck);
if (@blockers > 0) {
$syval = '';
} else {
$syval = $poss_syval;
$realpossible++;
}
} else {
$syval = $poss_syval;
$realpossible++;
}
if ($syval) {
if (ref($possibles) eq 'HASH') {
$possibles->{$syval} = 1;
}
}
}
}	}
}	}
if ($realpossible!=1) { $syval=''; }	if ($realpossible!=1) { $syval=''; }
Line 12590 sub symbread {	Line 10912 sub symbread {
$syval='';	$syval='';
}	}
}	}
untie(%bighash);	untie(%bighash)
}	}
}	}
if ($syval) {	if ($syval) {
Line 12743 sub rndseed {	Line 11065 sub rndseed {
$which =&get_rand_alg($courseid);	$which =&get_rand_alg($courseid);
}	}
if (defined(&getCODE())) {	if (defined(&getCODE())) {

if ($which eq '64bit5') {	if ($which eq '64bit5') {
return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);	return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit4') {	} elsif ($which eq '64bit4') {
Line 12928 sub rndseed_CODE_64bit5 {	Line 11251 sub rndseed_CODE_64bit5 {
sub setup_random_from_rndseed {	sub setup_random_from_rndseed {
my ($rndseed)=@_;	my ($rndseed)=@_;
if ($rndseed =~/([,:])/) {	if ($rndseed =~/([,:])/) {
my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));	my ($num1,$num2)=split(/[,:]/,$rndseed);
if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {	&Math::Random::random_set_seed(abs($num1),abs($num2));
&Math::Random::random_set_seed_from_phrase($rndseed);
} else {
&Math::Random::random_set_seed($num1,$num2);
}
} else {	} else {
&Math::Random::random_set_seed_from_phrase($rndseed);	&Math::Random::random_set_seed_from_phrase($rndseed);
}	}
Line 13119 sub repcopy_userfile {	Line 11438 sub repcopy_userfile {
my $request;	my $request;
$uri=~s/^\///;	$uri=~s/^\///;
my $homeserver = &homeserver($cnum,$cdom);	my $homeserver = &homeserver($cnum,$cdom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);	$request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
my $response=$ua->request($request,$transferfile);	my $response=$ua->request($request,$transferfile);
# did it work?	# did it work?
if ($response->is_error()) {	if ($response->is_error()) {
Line 13146 sub tokenwrapper {	Line 11464 sub tokenwrapper {
$file=~s\|(\?\.)$\|\|;	$file=~s\|(\?\.)$\|\|;
&appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});	&appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
my $homeserver = &homeserver($uname,$udom);	my $homeserver = &homeserver($uname,$udom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
return $protocol.'://'.$hostname.'/'.$uri.	return $protocol.'://'.&hostname($homeserver).'/'.$uri.
(($uri=~/\?/)?'&':'?').'token='.$token.	(($uri=~/\?/)?'&':'?').'token='.$token.
'&tokenissued='.$perlvar{'lonHostID'};	'&tokenissued='.$perlvar{'lonHostID'};
} else {	} else {
Line 13165 sub getuploaded {	Line 11482 sub getuploaded {
my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;	my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
$uri=~s/^\///;	$uri=~s/^\///;
my $homeserver = &homeserver($cnum,$cdom);	my $homeserver = &homeserver($cnum,$cdom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$uri = $protocol.'://'.$hostname.'/raw/'.$uri;	$uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
my $request=new HTTP::Request($reqtype,$uri);	my $request=new HTTP::Request($reqtype,$uri);
my $response=$ua->request($request);	my $response=$ua->request($request);
Line 13188 sub readfile {	Line 11504 sub readfile {
my $file = shift;	my $file = shift;
if ( (! -e $file ) \|\| ($file eq '') ) { return -1; };	if ( (! -e $file ) \|\| ($file eq '') ) { return -1; };
my $fh;	my $fh;
open($fh,"<",$file);	open($fh,"<$file");
my $a='';	my $a='';
while (my $line = <$fh>) { $a .= $line; }	while (my $line = <$fh>) { $a .= $line; }
return $a;	return $a;
Line 13301 sub machine_ids {	Line 11617 sub machine_ids {

sub additional_machine_domains {	sub additional_machine_domains {
my @domains;	my @domains;
open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab");	open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
while( my $line = <$fh>) {	while( my $line = <$fh>) {
$line =~ s/\s//g;	$line =~ s/\s//g;
push(@domains,$line);	push(@domains,$line);
Line 13322 sub default_login_domain {	Line 11638 sub default_login_domain {
return $domain;	return $domain;
}	}

sub shared_institution {
my ($dom) = @_;
my $same_intdom;
my $hostintdom = &internet_dom($perlvar{'lonHostID'});
if ($hostintdom ne '') {
my %iphost = &get_iphost();
my $primary_id = &domain($dom,'primary');
my $primary_ip = &get_host_ip($primary_id);
if (ref($iphost{$primary_ip}) eq 'ARRAY') {
foreach my $id (@{$iphost{$primary_ip}}) {
my $intdom = &internet_dom($id);
if ($intdom eq $hostintdom) {
$same_intdom = 1;
last;
}
}
}
}
return $same_intdom;
}

sub uses_sts {
my ($ignore_cache) = @_;
my $lonhost = $perlvar{'lonHostID'};
my $hostname = &hostname($lonhost);
my $sts_on;
if ($protocol{$lonhost} eq 'https') {
my $cachetime = 12*3600;
if (!$ignore_cache) {
($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost);
if (defined($cached)) {
return $sts_on;
}
}
my $ua=new LWP::UserAgent;
my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';
my $request=new HTTP::Request('HEAD',$url);
my $response=$ua->request($request);
if ($response->is_success) {
my $has_sts = $response->header('Strict-Transport-Security');
if ($has_sts eq '') {
$sts_on = 0;
} else {
if ($has_sts =~ /\Qmax-age=\E(\d+)/) {
my $maxage = $1;
if ($maxage) {
$sts_on = 1;
} else {
$sts_on = 0;
}
} else {
$sts_on = 0;
}
}
return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime);
}
}
return;
}

# ------------------------------------------------------------- Declutters URLs	# ------------------------------------------------------------- Declutters URLs

sub declutter {	sub declutter {
my $thisfn=shift;	my $thisfn=shift;
if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }	if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
unless ($thisfn=~m{^/home/httpd/html/priv/}) {	$thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
$thisfn=~s{^/home/httpd/html}{};
}
$thisfn=~s/^\///;	$thisfn=~s/^\///;
$thisfn=~s\|^adm/wrapper/\|\|;	$thisfn=~s\|^adm/wrapper/\|\|;
$thisfn=~s\|^adm/coursedocs/showdoc/\|\|;	$thisfn=~s\|^adm/coursedocs/showdoc/\|\|;
Line 13505 sub get_dns {	Line 11759 sub get_dns {
}	}

my %alldns;	my %alldns;
if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {	open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
foreach my $dns (<$config>) {	foreach my $dns (<$config>) {
next if ($dns !~ /^\^(\S*)/x);	next if ($dns !~ /^\^(\S*)/x);
my $line = $1;	my $line = $1;
my ($host,$protocol) = split(/:/,$line);	my ($host,$protocol) = split(/:/,$line);
if ($protocol ne 'https') {	if ($protocol ne 'https') {
$protocol = 'http';	$protocol = 'http';
}
$alldns{$host} = $protocol;
}	}
close($config);	$alldns{$host} = $protocol;
}	}
while (%alldns) {	while (%alldns) {
my ($dns) = sort { $b cmp $a } keys(%alldns);	my ($dns) = keys(%alldns);
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
$ua->timeout(30);	$ua->timeout(30);
my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");	my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
Line 13526 sub get_dns {	Line 11778 sub get_dns {
delete($alldns{$dns});	delete($alldns{$dns});
next if ($response->is_error());	next if ($response->is_error());
my @content = split("\n",$response->content);	my @content = split("\n",$response->content);
unless ($nocache) {	unless ($nocache) {
&do_cache_new('dns',$url,\@content,302460*60);	&do_cache_new('dns',$url,\@content,302460*60);
}	}
&$func(\@content,$hashref);	&$func(\@content,$hashref);
return;	return;
}	}
	close($config);
my $which = (split('/',$url))[3];	my $which = (split('/',$url))[3];
&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");	&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {	open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
my @content = <$config>;	my @content = <$config>;
&$func(\@content,$hashref);	&$func(\@content,$hashref);
}
return;	return;
}	}

# ------------------------------------------------------Get DNS checksums file	# ------------------------------------------------------Get DNS checksums file
sub parse_dns_checksums_tab {	sub parse_dns_checksums_tab {
my ($lines,$hashref) = @_;	my ($lines,$hashref) = @_;
my $lonhost = $perlvar{'lonHostID'};	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
my $machine_dom = &Apache::lonnet::host_domain($lonhost);
my $loncaparev = &get_server_loncaparev($machine_dom);	my $loncaparev = &get_server_loncaparev($machine_dom);
my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
my $webconfdir = '/etc/httpd/conf';
if ($distro =~ /^(ubuntu\|debian)(\d+)$/) {
$webconfdir = '/etc/apache2';
} elsif ($distro =~ /^sles(\d+)$/) {
if ($1 >= 10) {
$webconfdir = '/etc/apache2';
}
} elsif ($distro =~ /^suse(\d+\.\d+)$/) {
if ($1 >= 10.0) {
$webconfdir = '/etc/apache2';
}
}
my ($release,$timestamp) = split(/\-/,$loncaparev);	my ($release,$timestamp) = split(/\-/,$loncaparev);
my (%chksum,%revnum);	my (%chksum,%revnum);
if (ref($lines) eq 'ARRAY') {	if (ref($lines) eq 'ARRAY') {
chomp(@{$lines});	chomp(@{$lines});
my $version = shift(@{$lines});	my $version = shift(@{$lines});
if ($version eq $release) {	if ($version eq $release) {
foreach my $line (@{$lines}) {	foreach my $line (@{$lines}) {
my ($file,$version,$shasum) = split(/,/,$line);	my ($file,$version,$shasum) = split(/,/,$line);
if ($file =~ m{^/etc/httpd/conf}) {
if ($webconfdir eq '/etc/apache2') {
$file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
}
}
$chksum{$file} = $shasum;	$chksum{$file} = $shasum;
$revnum{$file} = $version;	$revnum{$file} = $version;
}	}
Line 13590 sub parse_dns_checksums_tab {	Line 11823 sub parse_dns_checksums_tab {
sub fetch_dns_checksums {	sub fetch_dns_checksums {
my %checksums;	my %checksums;
my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});	my $loncaparev = &get_server_loncaparev($machine_dom);
my ($release,$timestamp) = split(/\-/,$loncaparev);	my ($release,$timestamp) = split(/\-/,$loncaparev);
&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,	&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
\%checksums);	\%checksums);
Line 13625 sub fetch_dns_checksums {	Line 11858 sub fetch_dns_checksums {
}	}

sub load_domain_tab {	sub load_domain_tab {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;
&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
my $fh;	my $fh;
if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {	if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
my @lines = <$fh>;	my @lines = <$fh>;
&parse_domain_tab(\@lines);	&parse_domain_tab(\@lines);
}	}
Line 13680 sub fetch_dns_checksums {	Line 11913 sub fetch_dns_checksums {
my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);	my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
$name=~s/\s//g;	$name=~s/\s//g;
if ($id && $domain && $role && $name) {	if ($id && $domain && $role && $name) {
if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
my $curr = $hostname{$id};
my $skip;
if (ref($name_to_host{$curr}) eq 'ARRAY') {
if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
$skip = 1;
} else {
@{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
}
}
unless ($skip) {
push(@{$name_to_host{$name}},$id);
}
} else {
push(@{$name_to_host{$name}},$id);
}
$hostname{$id}=$name;	$hostname{$id}=$name;
	push(@{$name_to_host{$name}}, $id);
$hostdom{$id}=$domain;	$hostdom{$id}=$domain;
if ($role eq 'library') { $libserv{$id}=$name; }	if ($role eq 'library') { $libserv{$id}=$name; }
if (defined($protocol)) {	if (defined($protocol)) {
Line 13727 sub fetch_dns_checksums {	Line 11945 sub fetch_dns_checksums {
}	}

sub load_hosts_tab {	sub load_hosts_tab {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;
&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");	open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
my @config = <$config>;	my @config = <$config>;
&parse_hosts_tab(\@config);	&parse_hosts_tab(\@config);
close($config);	close($config);
Line 13750 sub fetch_dns_checksums {	Line 11968 sub fetch_dns_checksums {
}	}

sub all_names {	sub all_names {
my ($ignore_cache,$nocache) = @_;	&load_hosts_tab() if (!$loaded);
&load_hosts_tab($ignore_cache,$nocache) if (!$loaded);

return %name_to_host;	return %name_to_host;
}	}
Line 13873 sub fetch_dns_checksums {	Line 12090 sub fetch_dns_checksums {
}	}

sub get_iphost {	sub get_iphost {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;

if (!$ignore_cache) {	if (!$ignore_cache) {
if (%iphost) {	if (%iphost) {
Line 13897 sub fetch_dns_checksums {	Line 12114 sub fetch_dns_checksums {
%old_name_to_ip = %{$ip_info->[1]};	%old_name_to_ip = %{$ip_info->[1]};
}	}

my %name_to_host = &all_names($ignore_cache,$nocache);	my %name_to_host = &all_names();
foreach my $name (keys(%name_to_host)) {	foreach my $name (keys(%name_to_host)) {
my $ip;	my $ip;
if (!exists($name_to_ip{$name})) {	if (!exists($name_to_ip{$name})) {
Line 13922 sub fetch_dns_checksums {	Line 12139 sub fetch_dns_checksums {
}	}
push(@{$iphost{$ip}},@{$name_to_host{$name}});	push(@{$iphost{$ip}},@{$name_to_host{$name}});
}	}
unless ($nocache) {	&do_cache_new('iphost','iphost',
&do_cache_new('iphost','iphost',	[\%iphost,\%name_to_ip,\%lonid_to_ip],
[\%iphost,\%name_to_ip,\%lonid_to_ip],	486060);
486060);
}

return %iphost;	return %iphost;
}	}
Line 13991 sub all_loncaparevs {	Line 12206 sub all_loncaparevs {
return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);	return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
}	}

# ------------------------------------------------------- Read loncaparev table	# ---------------------------------------------------------- Read loncaparev table
{	{
sub load_loncaparevs {	sub load_loncaparevs {
if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {	if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
my ($hostid,$loncaparev)=split(/:/,$configline);	my ($hostid,$loncaparev)=split(/:/,$configline);
Line 14007 sub all_loncaparevs {	Line 12222 sub all_loncaparevs {
}	}
}	}

# ----------------------------------------------------- Read serverhostID table	# ---------------------------------------------------------- Read serverhostID table
{	{
sub load_serverhomeIDs {	sub load_serverhomeIDs {
if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {	if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
my ($name,$id)=split(/:/,$configline);	my ($name,$id)=split(/:/,$configline);
Line 14036 BEGIN {	Line 12251 BEGIN {

# ------------------------------------------------------ Read spare server file	# ------------------------------------------------------ Read spare server file
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");	open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14050 BEGIN {	Line 12265 BEGIN {
}	}
# ------------------------------------------------------------ Read permissions	# ------------------------------------------------------------ Read permissions
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");	open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14064 BEGIN {	Line 12279 BEGIN {

# -------------------------------------------- Read plain texts for permissions	# -------------------------------------------- Read plain texts for permissions
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");	open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14084 BEGIN {	Line 12299 BEGIN {

# ---------------------------------------------------------- Read package table	# ---------------------------------------------------------- Read package table
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");	open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
if ($configline !~ /\S/ \|\| $configline=~/^#/) { next; }	if ($configline !~ /\S/ \|\| $configline=~/^#/) { next; }
Line 14099 BEGIN {	Line 12314 BEGIN {
close($config);	close($config);
}	}

# --------------------------------------------------------- Read loncaparev table	# ---------------------------------------------------------- Read loncaparev table

&load_loncaparevs();	&load_loncaparevs();

# ------------------------------------------------------- Read serverhostID table	# ---------------------------------------------------------- Read serverhostID table

&load_serverhomeIDs();	&load_serverhomeIDs();

Line 14130 BEGIN {	Line 12345 BEGIN {
# ---------------------------------------------------------- Read managers table	# ---------------------------------------------------------- Read managers table
{	{
if (-e "$perlvar{'lonTabDir'}/managers.tab") {	if (-e "$perlvar{'lonTabDir'}/managers.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
next if ($configline =~ /^\#/);	next if ($configline =~ /^\#/);
Line 14149 BEGIN {	Line 12364 BEGIN {

}	}

# ------------- set default texengine (domain default overrides this)
{
$deftex = LONCAPA::texengine();
}

# ------------- set default minimum length for passwords for internal auth users
{
$passwdmin = LONCAPA::passwd_min();
}

$memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],	$memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
'compress_threshold'=> 20_000,	'compress_threshold'=> 20_000,
});	});
Line 14317 were new keys. I.E. 1:foo will become 1:	Line 12522 were new keys. I.E. 1:foo will become 1:
Calling convention:	Calling convention:

my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);	my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);	&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname);

For more detailed information, see lonnet specific documentation.	For more detailed information, see lonnet specific documentation.

Line 14453 escaped strings of the action recorded i	Line 12658 escaped strings of the action recorded i

=item *	=item *

allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege;	allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions
returns codes for allowed actions.

The first argument is required, all others are optional.

$priv is the privilege being checked.
$uri contains additional information about what is being checked for access (e.g.,
URL, course ID etc.).
$symb is the unique resource instance identifier in a course; if needed,
but not provided, it will be retrieved via a call to &symbread().
$role is the role for which a priv is being checked (only used if priv is evb).
$clientip is the user's IP address (only used when checking for access to portfolio
files).
$noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
prevents recursive calls to &allowed.

F: full access	F: full access
U,I,K: authentication modes (cxx only)	U,I,K: authentication modes (cxx only)
'': forbidden	'': forbidden
1: user needs to choose course	1: user needs to choose course
2: browse allowed	2: browse allowed
A: passphrase authentication needed	A: passphrase authentication needed
B: access temporarily blocked because of a blocking event in a course.

=item *	=item *

Line 14494 in which case the null string is returne	Line 12683 in which case the null string is returne

=item *	=item *

definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;	definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
define a custom role rolename set privileges in format of lonTabs/roles.tab	role rolename set privileges in format of lonTabs/roles.tab for system, domain,
for system, domain, and course level. $uname and $udom are optional (current	and course level
user's username and domain will be used when either of $uname or $udom are absent.

=item *	=item *

Line 14528 provided for types, will default to retu	Line 12716 provided for types, will default to retu
=item *	=item *

in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if	in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
user: $uname:$udom has a role in the course: $cdom_$cnum.	user: $uname:$udom has a role in the course: $cdom_$cnum.

Additional optional arguments are: $type (if role checking is to be restricted	Additional optional arguments are: $type (if role checking is to be restricted
to certain user status types -- previous (expired roles), active (currently	to certain user status types -- previous (expired roles), active (currently
available roles) or future (roles available in the future), and	available roles) or future (roles available in the future), and
$hideprivileged -- if true will not report course roles for users who	$hideprivileged -- if true will not report course roles for users who
Line 14701 Inputs:	Line 12889 Inputs:

=item $credits, number of credits student will earn from this class	=item $credits, number of credits student will earn from this class

=item $instsec, institutional course section code for student

=back	=back


Line 14769 values that are the resource value. I b	Line 12955 values that are the resource value. I b
versions are also returned.	versions are also returned.

get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's	get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
supplemental content area. This routine caches the number of files for	supplemental content area. This routine caches the number of files for
10 minutes.	10 minutes.

=back	=back
Line 14806 Returns:	Line 12992 Returns:

=back	=back

=head2 Bubblesheet Configuration

=over 4

=item *

get_scantron_config($which)

$which - the name of the configuration to parse from the file.

Parses and returns the bubblesheet configuration line selected as a
hash of configuration file fields.


Returns:
If the named configuration is not in the file, an empty
hash is returned.

a hash with the fields
name - internal name for the this configuration setup
description - text to display to operator that describes this config
CODElocation - if 0 or the string 'none'
- no CODE exists for this config
if -1 \|\| the string 'letter'
- a CODE exists for this config and is
a string of letters
Unsupported value (but planned for future support)
if a positive integer
- The CODE exists as the first n items from
the question section of the form
if the string 'number'
- The CODE exists for this config and is
a string of numbers
CODEstart - (only matter if a CODE exists) column in the line where
the CODE starts
CODElength - length of the CODE
IDstart - column where the student/employee ID starts
IDlength - length of the student/employee ID info
Qstart - column where the information from the bubbled
'questions' start
Qlength - number of columns comprising a single bubble line from
the sheet. (usually either 1 or 10)
Qon - either a single character representing the character used
to signal a bubble was chosen in the positional setup, or
the string 'letter' if the letter of the chosen bubble is
in the final, or 'number' if a number representing the
chosen bubble is in the file (1->A 0->J)
Qoff - the character used to represent that a bubble was
left blank
PaperID - if the scanning process generates a unique number for each
sheet scanned the column that this ID number starts in
PaperIDlength - number of columns that comprise the unique ID number
for the sheet of paper
FirstName - column that the first name starts in
FirstNameLength - number of columns that the first name spans
LastName - column that the last name starts in
LastNameLength - number of columns that the last name spans
BubblesPerRow - number of bubbles available in each row used to
bubble an answer. (If not specified, 10 assumed).


=item *

get_scantronformat_file($cdom)

$cdom - the course's domain (optional); if not supplied, uses
domain for current $env{'request.course.id'}.

Returns an array containing lines from the scantron format file for
the domain of the course.

If a url for a custom.tab file is listed in domain's configuration.db,
lines are from this file.

Otherwise, if a default.tab has been published in RES space by the
domainconfig user, lines are from this file.

Otherwise, fall back to getting lines from the legacy file on the
local server: /home/httpd/lonTabs/default_scantronformat.tab

=back

=head2 Resource Subroutines	=head2 Resource Subroutines

=over 4	=over 4
Line 14954 will be stored for query	Line 13058 will be stored for query

=item *	=item *

symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :	symbread($filename) : return symbolic list entry (filename argument optional);
return symbolic list entry (all arguments optional).

Args: filename is the filename (including path) for the file for which a symb
is required; donotrecurse, if true will prevent calls to allowed() being made
to check access status if more than one resource was found in the bighash
(see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
a randompick); ignorecachednull, if true will prevent a symb of '' being
returned if $env{$cache_str} is defined as ''; checkforblock if true will
cause possible symbs to be checked to determine if they are subject to content
blocking, if so they will not be included as possible symbs; possibles is a
ref to a hash, which, as a side effect, will be populated with all possible
symbs (content blocking not tested).

returns the data handle	returns the data handle

=item *	=item *
Line 14977 and is a possible symb for the URL in $t	Line 13068 and is a possible symb for the URL in $t
resource that the user accessed using /enc/ returns a 1 on success, 0	resource that the user accessed using /enc/ returns a 1 on success, 0
on failure, user must be in a course, as it assumes the existence of	on failure, user must be in a course, as it assumes the existence of
the course initial hash, and uses $env('request.course.id'}. The third	the course initial hash, and uses $env('request.course.id'}. The third
arg is an optional reference to a scalar. If this arg is passed in the	arg is an optional reference to a scalar. If this arg is passed in the
call to symbverify, it will be set to 1 if the symb has been set to be	call to symbverify, it will be set to 1 if the symb has been set to be
encrypted; otherwise it will be null.	encrypted; otherwise it will be null.

=item *	=item *

Line 15032 expirespread($uname,$udom,$stype,$usymb)	Line 13123 expirespread($uname,$udom,$stype,$usymb)
devalidate($symb) : devalidate temporary spreadsheet calculations,	devalidate($symb) : devalidate temporary spreadsheet calculations,
forcing spreadsheet to reevaluate the resource scores next time.	forcing spreadsheet to reevaluate the resource scores next time.

=item *	=item *

can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,	can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
when viewing in course context.	when viewing in course context.

input: six args -- filename (decluttered), course number, course domain,	input: six args -- filename (decluttered), course number, course domain,
url, symb (if registered) and group (if this is a	url, symb (if registered) and group (if this is a
group item -- e.g., bulletin board, group page etc.).	group item -- e.g., bulletin board, group page etc.).

output: array of five scalars --	output: array of five scalars --
Line 15046 when viewing in course context.	Line 13137 when viewing in course context.
$home -- homeserver of resource (i.e., for author if published,	$home -- homeserver of resource (i.e., for author if published,
or course if uploaded.).	or course if uploaded.).
$switchserver -- 1 if server switch will be needed.	$switchserver -- 1 if server switch will be needed.
$forceedit -- 1 if icon/link should be to go to edit mode	$forceedit -- 1 if icon/link should be to go to edit mode
$forceview -- 1 if icon/link should be to go to view mode	$forceview -- 1 if icon/link should be to go to view mode

=item *	=item *

is_course_upload($file,$cnum,$cdom)	is_course_upload($file,$cnum,$cdom)

Used in course context to determine if current file was uploaded to	Used in course context to determine if current file was uploaded to
the course (i.e., would be found in /userfiles/docs on the course's	the course (i.e., would be found in /userfiles/docs on the course's
homeserver.	homeserver.

input: 3 args -- filename (decluttered), course number and course domain.	input: 3 args -- filename (decluttered), course number and course domain.
Line 15068 homeserver.	Line 13159 homeserver.

=item *	=item *

store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash	store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
permanently for this url; hashref needs to be given and should be a \%hashname;	for this url; hashref needs to be given and should be a \%hashname; the
the remaining args aren't required and if they aren't passed or are '' they will	remaining args aren't required and if they aren't passed or are '' they will
be derived from the env (with the exception of $laststore, which is an	be derived from the env
optional arg used when a user's submission is stored in grading).
$laststore is $version=$timestamp, where $version is the most recent version
number retrieved for the corresponding $symb in the $namespace db file, and
$timestamp is the timestamp for that transaction (UNIX time).
$laststore is currently only passed when cstore() is called by
structuretags::finalize_storage().

=item *	=item *

cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store	cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
but uses critical subroutine	uses critical subroutine

=item *	=item *

Line 15105 $range should be either an integer '100'	Line 13190 $range should be either an integer '100'

=item *	=item *

putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :	putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
replaces a &store() version of data with a replacement set of data	replaces a &store() version of data with a replacement set of data
for a particular resource in a namespace passed in the $storehash hash	for a particular resource in a namespace passed in the $storehash hash
reference. If $tolog is true, the transaction is logged in the courselog	reference
with an action=PUTSTORE.

=item *	=item *

Line 15219 server ($udom and $uhome are optional)	Line 13303 server ($udom and $uhome are optional)

=item *	=item *

get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults	get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
for: authentication, language, quotas, timezone, date locale, and portal URL in	for: authentication, language, quotas, timezone, date locale, and portal URL in
the target domain.	the target domain.

Line 15274 for course's uploaded content.	Line 13358 for course's uploaded content.
=over	=over

=item	=item
canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,	canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,
communityquota, textbookquota	communityquota, textbookquota

=back	=back
Line 15285 on your servers.	Line 13369 on your servers.

=over	=over

=item	=item
remotesessions, hostedsessions	remotesessions, hostedsessions

=back	=back
Line 15293 remotesessions, hostedsessions	Line 13377 remotesessions, hostedsessions
=back	=back

In cases where a domain coordinator has never used the "Set Domain Configuration"	In cases where a domain coordinator has never used the "Set Domain Configuration"
utility to create a configuration.db file on a domain's primary library server	utility to create a configuration.db file on a domain's primary library server
only the following domain defaults: auth_def, auth_arg_def, lang_def	only the following domain defaults: auth_def, auth_arg_def, lang_def
-- corresponding values are authentication type (internal, krb4, krb5,	-- corresponding values are authentication type (internal, krb4, krb5,
or localauth), initial password or a kerberos realm, language (e.g., en-us) --	or localauth), initial password or a kerberos realm, language (e.g., en-us) --
will be available. Values are retrieved from cache (if current), unless the	will be available. Values are retrieved from cache (if current), unless the
optional $ignore_cache arg is true, or from domain's configuration.db (if available),	optional $ignore_cache arg is true, or from domain's configuration.db (if available),
or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.	or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
Line 15528 filelocation except for hrefs	Line 13612 filelocation except for hrefs

=item *	=item *

declutter() : declutters URLs -- remove beginning slashes, 'res' etc.	declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
also removes beginning /home/httpd/html unless /priv/ follows it.

=back	=back

Line 15579 userspace, probably shouldn't be called	Line 13662 userspace, probably shouldn't be called
formname: same as for userfileupload()	formname: same as for userfileupload()
fname: filename (including subdirectories) for the file	fname: filename (including subdirectories) for the file
parser: if 'parse', will parse (html) file to extract references to objects, links etc.	parser: if 'parse', will parse (html) file to extract references to objects, links etc.
if hashref, and context is scantron, will convert csv format to standard format
allfiles: reference to hash used to store objects found by parser	allfiles: reference to hash used to store objects found by parser
codebase: reference to hash used for codebases of java objects found by parser	codebase: reference to hash used for codebases of java objects found by parser
thumbwidth: width (pixels) of thumbnail to be created for uploaded image	thumbwidth: width (pixels) of thumbnail to be created for uploaded image
Line 15725 Returns:	Line 13807 Returns:

get_timebased_id():	get_timebased_id():

Attempts to get a unique timestamp-based suffix for use with items added to a	Attempts to get a unique timestamp-based suffix for use with items added to a
course via the Course Editor (e.g., folders, composite pages,	course via the Course Editor (e.g., folders, composite pages,
group bulletin boards).	group bulletin boards).

Args: (first three required; six others optional)	Args: (first three required; six others optional)
Line 15737 Args: (first three required; six others	Line 13819 Args: (first three required; six others
2. keyid (alphanumeric): name of temporary locking key in hash,	2. keyid (alphanumeric): name of temporary locking key in hash,
e.g., num, boardids	e.g., num, boardids

3. namespace: name of gdbm file used to store suffixes already assigned;	3. namespace: name of gdbm file used to store suffixes already assigned;
file will be named nohist_namespace.db	file will be named nohist_namespace.db

4. cdom: domain of course; default is current course domain from %env	4. cdom: domain of course; default is current course domain from %env

5. cnum: course number; default is current course number from %env	5. cnum: course number; default is current course number from %env

6. idtype: set to concat if an additional digit is to be appended to the	6. idtype: set to concat if an additional digit is to be appended to the
unix timestamp to form the suffix, if the plain timestamp is already	unix timestamp to form the suffix, if the plain timestamp is already
in use. Default is to not do this, but simply increment the unix	in use. Default is to not do this, but simply increment the unix
timestamp by 1 until a unique key is obtained.	timestamp by 1 until a unique key is obtained.

7. who: holder of locking key; defaults to user:domain for user.	7. who: holder of locking key; defaults to user:domain for user.

8. locktries: number of attempts to obtain a lock (sleep of 1s before	8. locktries: number of attempts to obtain a lock (sleep of 1s before
retrying); default is 3.	retrying); default is 3.

9. maxtries: number of attempts to obtain a unique suffix; default is 20.	9. maxtries: number of attempts to obtain a unique suffix; default is 20.

Returns:	Returns:

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.1172.2.129
changed lines
	Added in v.1.1256