loncom/lonnet/perl/lonnet.pm - diff

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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.93.4.3 and 1.1237

version 1.1172.2.93.4.3, 2017/10/14 21:27:51	version 1.1237, 2013/09/01 22:39:48
Line 75 use LWP::UserAgent();	Line 75 use LWP::UserAgent();
use HTTP::Date;	use HTTP::Date;
use Image::Magick;	use Image::Magick;

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

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

Line 89 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 102 use LONCAPA::Lond;	Line 105 use LONCAPA::Lond;
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 123 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);
}	}
}	}

Line 352 sub get_remote_globals {	Line 356 sub get_remote_globals {
}	}

sub remote_devalidate_cache {	sub remote_devalidate_cache {
my ($lonhost,$cachekeys) = @_;	my ($lonhost,$name,$id) = @_;
my $items;	my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
return unless (ref($cachekeys) eq 'ARRAY');	return $response;
my $cachestr = join('&',@{$cachekeys});
return &reply('devalidatecache:'.&escape($cachestr),$lonhost);
}	}

# -------------------------------------------------- Non-critical communication	# -------------------------------------------------- Non-critical communication
Line 370 sub subreply {	Line 372 sub subreply {

my $lockfile=$peerfile.".lock";	my $lockfile=$peerfile.".lock";
while (-e $lockfile) { # Need to wait for the lockfile to disappear.	while (-e $lockfile) { # Need to wait for the lockfile to disappear.
sleep(0.1);	sleep(1);
}	}
# At this point, either a loncnew parent is listening or an old lonc	# At this point, either a loncnew parent is listening or an old lonc
# or loncnew child is listening so we can connect or everything's dead.	# or loncnew child is listening so we can connect or everything's dead.
Line 388 sub subreply {	Line 390 sub subreply {
} else {	} else {
&create_connection(&hostname($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 417 sub reply {	Line 419 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 464 sub critical {	Line 466 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 $now=time;
Line 481 sub critical {	Line 483 sub critical {
close($dfh);	close($dfh);
}	}
}	}
sleep 1;	sleep 2;
my $wcmd='';	my $wcmd='';
{	{
my $dfh;	my $dfh;
Line 601 sub transfer_profile_to_env {	Line 603 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) = @_;
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));	my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
if ($name eq '') {	if ($name eq '') {
$name = 'lonID';	$name = 'lonID';
Line 616 sub check_for_valid_session {	Line 618 sub check_for_valid_session {
} else {	} else {
$lonidsdir=$r->dir_config('lonIDsDir');	$lonidsdir=$r->dir_config('lonIDsDir');
}	}
if (!-e "$lonidsdir/$handle.id") {	return undef 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;
}

my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");	my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
return undef if (!$opened);	return undef if (!$opened);
Line 641 sub check_for_valid_session {	Line 634 sub check_for_valid_session {
\|\| !defined($disk_env{'user.domain'})) {	\|\| !defined($disk_env{'user.domain'})) {
return undef;	return undef;
}	}
	if (($r->user() eq '') && ($apache >= 2.4)) {
if (ref($userhashref) eq 'HASH') {	if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
$userhashref->{'name'} = $disk_env{'user.name'};	$r->user($disk_env{'user.name'});
$userhashref->{'domain'} = $disk_env{'user.domain'};	} else {
	$r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
	}
}	}

return $handle;	return $handle;
}	}

Line 680 sub appenv {	Line 674 sub appenv {
if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {	if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {
$refused = 1;	$refused = 1;
if (ref($roles) eq 'ARRAY') {	if (ref($roles) eq 'ARRAY') {
my ($type,$role) = ($key =~ m{^user\.(role\|priv)\.(.+?)\./});	my ($type,$role) = ($key =~ /^user\.(role\|priv)\.([^.]+)\./);
if (grep(/^\Q$role\E$/,@{$roles})) {	if (grep(/^\Q$role\E$/,@{$roles})) {
$refused = 0;	$refused = 0;
}	}
Line 853 sub spareserver {	Line 847 sub spareserver {
if (ref($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, $lowest_load);
}	}
Line 865 sub spareserver {	Line 861 sub spareserver {
if (!$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 890 sub spareserver {	Line 888 sub spareserver {
}	}

sub compare_server_load {	sub compare_server_load {
my ($try_server, $spare_server, $lowest_load, $required) = @_;	my ($try_server, $spare_server, $lowest_load) = @_;

if ($required) {
my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
my $remoterev = &get_server_loncaparev(undef,$try_server);
my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
if (($major eq '' && $minor eq '') \|\|
(($reqdmajor > $major) \|\| (($reqdmajor == $major) && ($reqdminor > $minor)))) {
return ($spare_server,$lowest_load);
}
}

my $loadans = &reply('load', $try_server);	my $loadans = &reply('load', $try_server);
my $userloadans = &reply('userload',$try_server);	my $userloadans = &reply('userload',$try_server);
Line 961 sub has_user_session {	Line 949 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) = @_;
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 ($loginvia) {
my ($server,$path) = split(/:/,$loginvia);	my ($server,$path) = split(/:/,$loginvia);
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($server, $login_host, $lowest_load, $required);	&compare_server_load($server, $login_host, $lowest_load);
if ($login_host eq $server) {	if ($login_host eq $server) {
$portal_path = $path;	$portal_path = $path;
$isredirect = 1;	$isredirect = 1;
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load, $required);	&compare_server_load($lonhost, $login_host, $lowest_load);
if ($login_host eq $lonhost) {	if ($login_host eq $lonhost) {
$portal_path = '';	$portal_path = '';
$isredirect = '';	$isredirect = '';
Line 1005 sub choose_server {	Line 976 sub choose_server {
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load, $required);	&compare_server_load($lonhost, $login_host, $lowest_load);
}	}
}	}
if ($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);
}	}

# --------------------------------------------- Try to change a user's password	# --------------------------------------------- Try to change a user's password
Line 1178 sub can_host_session {	Line 1149 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 1283 sub get_lonbalancer_config {	Line 1246 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);	$rule_in_effect,$offloadto,$otherserver);
my $lonhost = $perlvar{'lonHostID'};	my $lonhost = $perlvar{'lonHostID'};
Line 1292 sub check_loadbalancing {	Line 1255 sub check_loadbalancing {
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 $intdom)) {
Line 1307 sub check_loadbalancing {	Line 1270 sub check_loadbalancing {
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$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) =	($is_balancer,$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($currrules) eq 'HASH') {
Line 1362 sub check_loadbalancing {	Line 1323 sub check_loadbalancing {
}	}
}	}
} elsif (($homeintdom) && ($udom ne $serverhomedom)) {	} elsif (($homeintdom) && ($udom ne $serverhomedom)) {
($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);	my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
unless (defined($cached)) {	unless (defined($cached)) {
my %domconfig =	my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$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) =	($is_balancer,$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 1389 sub check_loadbalancing {	Line 1348 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 $lowest_load = 30000;
Line 1434 sub check_loadbalancing {	Line 1384 sub check_loadbalancing {
}	}
}	}
}	}
unless ($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});
}
}	}
}	}
}	}
Line 1578 sub idget {	Line 1526 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 1588 sub idget {	Line 1536 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 1630 sub idput {	Line 1578 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 1675 sub dump_dom {	Line 1623 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 1683 sub get_dom {	Line 1630 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 1697 sub get_dom {	Line 1643 sub get_dom {
}	}
}	}
if ($udom && $uhome && ($uhome ne 'no_host')) {	if ($udom && $uhome && ($uhome ne 'no_host')) {
my $rep;	my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
if ($namespace =~ /^enc/) {
$rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
} else {
$rep=&reply("getdom:$udom:$namespace:$items",$uhome);
}
my %returnhash;	my %returnhash;
if ($rep eq '' \|\| $rep =~ /^error: 2 /) {	if ($rep eq '' \|\| $rep =~ /^error: 2 /) {
return %returnhash;	return %returnhash;
Line 1746 sub put_dom {	Line 1687 sub put_dom {
$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';	$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
}	}
$items=~s/\&$//;	$items=~s/\&$//;
if ($namespace =~ /^enc/) {	return &reply("putdom:$udom:$namespace:$items",$uhome);
return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);
} else {
return &reply("putdom:$udom:$namespace:$items",$uhome);
}
} else {	} else {
&logthis("put_dom failed - no homeserver and/or domain");	&logthis("put_dom failed - no homeserver and/or domain");
}	}
Line 1796 sub retrieve_inst_usertypes {	Line 1733 sub retrieve_inst_usertypes {
my %domdefs = &Apache::lonnet::get_domain_defaults($udom);	my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&	if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {	(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});	%returnhash = %{$domdefs{'inststatustypes'}};
	@order = @{$domdefs{'inststatusorder'}};
} else {	} else {
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
my $uhome=&domain($udom,'primary');	my $uhome=&domain($udom,'primary');
my $rep=&reply("inst_usertypes:$udom",$uhome);	my $rep=&reply("inst_usertypes:$udom",$uhome);
if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {	if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {
&logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");	&logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
return (\%returnhash,\@order);	return (\%returnhash,\@order);
}	}
my ($hashitems,$orderitems) = split(/:/,$rep);	my ($hashitems,$orderitems) = split(/:/,$rep);
Line 1818 sub retrieve_inst_usertypes {	Line 1756 sub retrieve_inst_usertypes {
push(@order,&unescape($item));	push(@order,&unescape($item));
}	}
} else {	} else {
&logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");	&logthis("get_dom failed - no primary domain server for $udom");
}	}
return (\%returnhash,\@order);
}	}
	return (\%returnhash,\@order);
}	}

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($1) ne '') {
return '1';	return '1';
}	}
Line 1847 sub inst_directory_query {	Line 1785 sub inst_directory_query {
&escape($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 1967 sub get_instuser {	Line 1905 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 2103 sub inst_userrules {	Line 1984 sub inst_userrules {
# ------------- Get Authentication, Language and User Tools Defaults for Domain	# ------------- Get Authentication, Language and User Tools Defaults for Domain

sub get_domain_defaults {	sub get_domain_defaults {
my ($domain,$ignore_cache) = @_;	my ($domain) = @_;
return if (($domain eq '') \|\| ($domain eq 'public'));
my $cachetime = 606024;	my $cachetime = 606024;
unless ($ignore_cache) {	my ($result,$cached)=&is_cached_new('domdefaults',$domain);
my ($result,$cached)=&is_cached_new('domdefaults',$domain);	if (defined($cached)) {
if (defined($cached)) {	if (ref($result) eq 'HASH') {
if (ref($result) eq 'HASH') {	return %{$result};
return %{$result};
}
}	}
}	}
my %domdefaults;	my %domdefaults;
Line 2119 sub get_domain_defaults {	Line 1997 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'],$domain);
'coursecategories','autoenroll',
'helpsettings'],$domain);
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'};
$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};	$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
Line 2130 sub get_domain_defaults {	Line 2005 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 2155 sub get_domain_defaults {	Line 2027 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'requestcourses'}) eq 'HASH') {	if (ref($domconfig{'requestcourses'}) eq 'HASH') {
foreach my $item ('official','unofficial','community','textbook') {	foreach my $item ('official','unofficial','community') {
$domdefaults{$item} = $domconfig{'requestcourses'}{$item};	$domdefaults{$item} = $domconfig{'requestcourses'}{$item};
}	}
}	}
Line 2163 sub get_domain_defaults {	Line 2035 sub get_domain_defaults {
$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};	$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
}	}
if (ref($domconfig{'inststatus'}) eq 'HASH') {	if (ref($domconfig{'inststatus'}) eq 'HASH') {
foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {	foreach my $item ('inststatustypes','inststatusorder') {
$domdefaults{$item} = $domconfig{'inststatus'}{$item};	$domdefaults{$item} = $domconfig{'inststatus'}{$item};
}	}
}	}
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'}{'coursecredits'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {	$domdefaults{'officialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'official'};
$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};	$domdefaults{'unofficialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'};
}	}
foreach my $type (@coursetypes) {	if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {	$domdefaults{'officialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'official'};
unless ($type eq 'community') {	$domdefaults{'unofficialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'unofficial'};
$domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};	$domdefaults{'communityquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'community'};
}
}
if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
$domdefaults{$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 (ref($domconfig{'usersessions'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}) eq 'HASH') {
Line 2207 sub get_domain_defaults {	Line 2058 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'}{'admin'}) eq 'HASH') {
my @settings = ('types','registered','enroll_dates','access_dates','section',
'approval','limit');
foreach my $type (@coursetypes) {
if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
my @mgrdc = ();
foreach my $item (@settings) {
if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
push(@mgrdc,$item);
}
}
if (@mgrdc) {
$domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
}
}
}
}
if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
foreach my $type (@coursetypes) {
if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
$domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
}
}
}
}
}
if (ref($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 course_portal_url {
my ($cnum,$cdom) = @_;
my $chome = &homeserver($cnum,$cdom);
my $hostname = &hostname($chome);
my $protocol = $protocol{$chome};
$protocol = 'http' if ($protocol ne 'https');
my %domdefaults = &get_domain_defaults($cdom);
my $firsturl;
if ($domdefaults{'portal_def'}) {
$firsturl = $domdefaults{'portal_def'};
} else {
$firsturl = $protocol.'://'.$hostname;
}
return $firsturl;
}

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

sub assign_access_key {	sub assign_access_key {
Line 2514 sub make_key {	Line 2299 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 $id is not defined"); }
Line 2542 sub is_cached_new {	Line 2323 sub is_cached_new {
if ($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 2565 sub do_cache_new {	Line 2345 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 2869 sub ssi {	Line 2649 sub ssi {
&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 $response= $ua->request($request);
	my $content = $response->content;


if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($content, $response);
} else {	} else {
return $response->content;	return $content;
}	}
}	}

Line 2916 sub allowuploaded {	Line 2694 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 2924 sub allowuploaded {	Line 2702 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 3018 sub can_edit_resource {	Line 2796 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 3038 sub can_edit_resource {	Line 2816 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
} else {
$forceedit = 1;
}
$cfile = $resurl;
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3057 sub can_edit_resource {	Line 2827 sub can_edit_resource {
}	}
} elsif ($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;
Line 3070 sub can_edit_resource {	Line 2840 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
} else {
$forceedit = 1;
}
$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 3087 sub can_edit_resource {	Line 2849 sub can_edit_resource {
$cfile = &clutter($res);	$cfile = &clutter($res);
} else {	} else {
$cfile = $env{'form.suppurl'};	$cfile = $env{'form.suppurl'};
my $escfile = &unescape($cfile);	$cfile =~ s{^http://}{};
if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {	$cfile = '/adm/wrapper/ext/'.$cfile;
$cfile = '/adm/wrapper'.$escfile;
} else {
$escfile =~ s{^http://}{};
$cfile = &escape("/adm/wrapper/ext/$escfile");
}
}	}
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3117 sub can_edit_resource {	Line 2874 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$/,@ids)) {
Line 3144 sub in_course {	Line 2901 sub in_course {
if ($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;	$skipuser = 1;
Line 3650 sub extract_embedded_items {	Line 3407 sub extract_embedded_items {
}	}
if (lc($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($tagname) eq 'script') {
Line 3739 sub extract_embedded_items {	Line 3496 sub extract_embedded_items {
}	}
}	}
}	}
if (lc($tagname) eq 'iframe') {
my $src = $attr->{'src'} ;
if (($src ne '') && ($src !~ m{^(/\|https?://)})) {
&add_filetype($allfiles,$src,'src');
} elsif ($src =~ m{^/}) {
if ($env{'request.course.id'}) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $url = &hreflocation('',$fullpath);
if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
my $relpath = $1;
if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
&add_filetype($allfiles,$1,'src');
}
}
}
}
}
if ($t->[4] =~ m{/>$}) {	if ($t->[4] =~ m{/>$}) {
pop(@state);	pop(@state);
}	}
} elsif ($t->[0] eq 'E') {	} elsif ($t->[0] eq 'E') {
my ($tagname) = ($t->[1]);	my ($tagname) = ($t->[1]);
Line 3975 sub flushcourselogs {	Line 3714 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 3990 sub flushcourselogs {	Line 3729 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 '.$tryserver);
}	}
}	}
Line 4122 sub userrolelog {	Line 3852 sub userrolelog {
{$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 4330 sub get_my_roles {	Line 4060 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 4349 sub get_my_roles {	Line 4079 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 4613 sub courseiddump {	Line 4154 sub courseiddump {
my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,	my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
$coursefilter,$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)=@_;
my $as_hash = 1;	my $as_hash = 1;
my %returnhash;	my %returnhash;
if (!$domfilter) { $domfilter=''; }	if (!$domfilter) { $domfilter=''; }
Line 4627 sub courseiddump {	Line 4167 sub courseiddump {
if (($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)));
$reqcrsdom,&escape($reqinstcode))));
} else {	} else {
$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.	$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
$sincefilter.':'.&escape($descfilter).':'.	$sincefilter.':'.&escape($descfilter).':'.
Line 4649 sub courseiddump {	Line 4188 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,
':'.$reqcrsdom.':'.&escape($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 4778 sub get_domain_roles {	Line 4317 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 4804 my $cachedkey='';	Line 4328 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,$ignorecache)=@_;	my ($uname,$udom)=@_;
if (($cachedkey eq $uname.':'.$udom) &&	if (($cachedkey eq $uname.':'.$udom) &&
(abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) &&	(abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
(!$ignorecache)) {
return;	return;
}	}
$cachedtime=time;	$cachedtime=time;
Line 4819 sub load_all_first_access {	Line 4342 sub load_all_first_access {
}	}

sub get_first_access {	sub get_first_access {
my ($type,$argsymb,$argmap,$ignorecache)=@_;	my ($type,$argsymb,$argmap)=@_;
my ($symb,$courseid,$udom,$uname)=&whichuser();	my ($symb,$courseid,$udom,$uname)=&whichuser();
if ($argsymb) { $symb=$argsymb; }	if ($argsymb) { $symb=$argsymb; }
my ($map,$id,$res)=&decode_symb($symb);	my ($map,$id,$res)=&decode_symb($symb);
Line 4831 sub get_first_access {	Line 4354 sub get_first_access {
} else {	} else {
$res=$symb;	$res=$symb;
}	}
&load_all_first_access($uname,$udom,$ignorecache);	&load_all_first_access($uname,$udom);
return $cachedtimes{"$courseid\0$res"};	return $cachedtimes{"$courseid\0$res"};
}	}

Line 4867 sub set_first_access {	Line 4390 sub set_first_access {
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 5323 sub tmprestore {	Line 4760 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 5353 sub store {	Line 4790 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 5390 sub cstore {	Line 4827 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 5546 sub privileged {	Line 4983 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 5570 sub privileged {	Line 5007 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 > $now);
}	}
}	}
Line 5611 sub privileged_by_domain {	Line 5048 sub privileged_by_domain {
my ($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 5659 sub rolesinit {	Line 5096 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 5732 sub rolesinit {	Line 5169 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 5752 sub set_arearole {	Line 5188 sub set_arearole {
sub custom_roleprivs {	sub custom_roleprivs {
my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;	my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);	my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
my $homsvr = &homeserver($rauthor,$rdomain);	my $homsvr=homeserver($rauthor,$rdomain);
if (&hostname($homsvr) ne '') {	if (&hostname($homsvr) ne '') {
my ($rdummy,$roledef)=	my ($rdummy,$roledef)=
&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);	&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
Line 5771 sub custom_roleprivs {	Line 5207 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 5783 sub custom_roleprivs {	Line 5215 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 $access = 1;
Line 5859 sub set_userprivs {	Line 5249 sub set_userprivs {
my ($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 5907 sub set_userprivs {	Line 5296 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 5916 sub set_userprivs {	Line 5304 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 {
my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;	my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
	my @pwhere = ();
if (exists($env{$rolekey}) && $env{$rolekey} ne '') {	if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
my ($one,$two) = split(m{\./},$rolekey,2);	(undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
(undef,undef,$$role) = split(/\./,$one,3);
unless (!defined($$role) \|\| $$role eq '') {	unless (!defined($$role) \|\| $$role eq '') {
$$where = '/'.$two;	$$where=join('.',@pwhere);
$$trolecode=$$role.'.'.$$where;	$$trolecode=$$role.'.'.$$where;
($$tstart,$$tend)=split(/\./,$env{$rolekey});	($$tstart,$$tend)=split(/\./,$env{$rolekey});
$$tstatus='is';	$$tstatus='is';
Line 5961 sub role_status {	Line 5349 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 6040 sub delete_env_groupprivs {	Line 5427 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 6149 sub unserialize {	Line 5519 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} = Apache::lonnet::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 $escapedkeys hash keys won't get unescaped.
Line 6166 sub dump {	Line 5537 sub dump {
if (!$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(/\&/,$rep);
Line 6183 sub dump {	Line 5555 sub dump {
if (!($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 6227 sub currentdump {	Line 5600 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,$uhome);
Line 6237 sub currentdump {	Line 5610 sub currentdump {
#	#
my %returnhash=();	my %returnhash=();
#	#
if ($rep eq 'unknown_cmd') {	if ($rep eq "unknown_cmd") {
# an old lond will not know currentdump	# an old lond will not know currentdump
# Do a dump and make it look like a currentdump	# Do a dump and make it look like a currentdump
my @tmp = &dumpstore($courseid,$sdom,$sname,'.');	my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
Line 6353 sub newput {	Line 5726 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 6367 sub putstore {	Line 5740 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 6471 sub tmpget {	Line 5833 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($value);
}	}
return %returnhash;	return %returnhash;
Line 6488 sub tmpdel {	Line 5848 sub tmpdel {
return &reply("tmpdel:$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 6508 sub get_timebased_id {	Line 5868 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 6538 sub get_timebased_id {	Line 5898 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 6563 sub get_timebased_id {	Line 5918 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 6572 sub get_timebased_id {	Line 5926 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 6618 sub portfolio_access {	Line 5961 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 6627 sub get_portfolio_access {	Line 5970 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 6651 sub get_portfolio_access {	Line 5994 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 ($guest) {
Line 6856 sub usertools_access {	Line 6184 sub usertools_access {
official => 1,	official => 1,
unofficial => 1,	unofficial => 1,
community => 1,	community => 1,
textbook => 1,
);	);
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
%tools = (	%tools = (
Line 6872 sub usertools_access {	Line 6199 sub usertools_access {
}	}
return if (!defined($tools{$tool}));	return if (!defined($tools{$tool}));

if (($udom eq '') \|\| ($uname eq '')) {	if ((!defined($udom)) \|\| (!defined($uname))) {
$udom = $env{'user.domain'};	$udom = $env{'user.domain'};
$uname = $env{'user.name'};	$uname = $env{'user.name'};
}	}
Line 6891 sub usertools_access {	Line 6218 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 7153 sub customaccess {	Line 6480 sub customaccess {
# ------------------------------------------------- Check for a user privilege	# ------------------------------------------------- Check for a user privilege

sub allowed {	sub allowed {
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck)=@_;	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 7170 sub allowed {	Line 6497 sub allowed {

if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }	if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
# Free bre access to adm and meta resources	# Free bre access to adm and meta resources
if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg\|bulletinboard\|ext\.tool)$}))	if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg\|bulletinboard)$}))
\|\| (($uri=~/\.meta$/) && ($uri!~m\|^uploaded/\|) ))	\|\| (($uri=~/\.meta$/) && ($uri!~m\|^uploaded/\|) ))
&& ($priv eq 'bre')) {	&& ($priv eq 'bre')) {
return 'F';	return 'F';
Line 7348 sub allowed {	Line 6675 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);	$thisallowed.=$1;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
}	}
} else {	} else {
Line 7369 sub allowed {	Line 6691 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,$symb,$refuri);	$thisallowed='F';
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed='F';
}
}	}
}	}
}	}
Line 7389 sub allowed {	Line 6707 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.
Line 7432 sub allowed {	Line 6750 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);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 7474 sub allowed {	Line 6788 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,$symb,$refuri);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 7658 sub constructaccess {	Line 6968 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 7713 sub constructaccess {	Line 7023 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='';
# 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,$blocks)=@_;
if (($uname ne '') && ($udom ne '')) {
if (($cacheduser eq $uname.':'.$udom) &&
(abs($cachedlast-time)<5)) {
return;
}
}
$cachedlast=time;
$cacheduser=$uname.':'.$udom;
%cachedblockers = &get_commblock_resources($blocks);
}

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 7759 sub get_comm_blocks {	Line 7043 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,$2);
Line 7781 sub get_commblock_resources {	Line 7071 sub get_commblock_resources {
if (ref($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,$block);
	}
}	}
}	}
}	}
Line 7798 sub get_commblock_resources {	Line 7092 sub get_commblock_resources {
my @to_test;	my @to_test;
if (ref($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)) {
@to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1);	my $res = $navmap->getBySymb($item);
foreach my $res (@to_test) {	push(@to_test,$res);
my $symb = $res->symb();	}
next if ($symb eq $mapsymb);	} else {
if ($symb ne '') {	my $mapsymb = &symbread($item,1);
@interval=&EXT("resource.0.interval",$symb);	if ($mapsymb) {
if ($interval[1] eq 'map') {	if (ref($navmap)) {
	my $mapres = $navmap->getBySymb($mapsymb);
	@to_test = $mapres->retrieveResources($mapres,undef,0,1);
	foreach my $res (@to_test) {
	my $symb = $res->symb();
	next if ($symb eq $mapsymb);
	if ($symb ne '') {
	@interval=&EXT("resource.0.interval",$symb);
last;	last;
}	}
}	}
Line 7830 sub get_commblock_resources {	Line 7125 sub get_commblock_resources {
}	}
}	}
}	}
}	if ($interval[0] =~ /\d+/) {
if ($interval[0] =~ /^(\d+)/) {	my $first_access;
my $timelimit = $1;	if ($type eq 'resource') {
my $first_access;	$first_access=&get_first_access($interval[1],$item);
if ($type eq 'resource') {	} elsif ($type eq 'map') {
$first_access=&get_first_access($interval[1],$item);	$first_access=&get_first_access($interval[1],undef,$item);
} elsif ($type eq 'map') {	} else {
$first_access=&get_first_access($interval[1],undef,$item);	$first_access=&get_first_access($interval[1]);
} else {	}
$first_access=&get_first_access($interval[1]);	if ($first_access) {
}	my $timesup = $first_access+$interval[0];
if ($first_access) {	if ($timesup > $now) {
my $timesup = $first_access+$timelimit;	foreach my $res (@to_test) {
if ($timesup > $now) {	if ($res->is_problem()) {
my $activeblock;	if ($res->completable()) {
foreach my $res (@to_test) {	unless (grep(/^\Q$block\E$/,@blockers)) {
if ($res->answerable()) {	push(@blockers,$block);
$activeblock = 1;	}
last;	last;
}	}
}
if ($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 7870 sub get_commblock_resources {	Line 7155 sub get_commblock_resources {
}	}
}	}
}	}
return %blockers;	return @blockers;
}	}

sub has_comm_blocking {	sub check_docs_block {
my ($priv,$symb,$uri,$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 ($env{'request.state'} eq 'construct');
&load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks);
return unless (keys(%cachedblockers) > 0);
my (%possibles,@symbs);
if (!$symb) {
$symb = &symbread($uri,1,1,1,\%possibles);
}	}
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 $block (keys(%cachedblockers)) {
if ($block =~ /^firstaccess____(.+)$/) {
my $item = $1;
if (($item eq $map) \|\| ($item eq $symb)) {
$noblock = 1;
last;
}
}
if (ref($cachedblockers{$block}) eq 'HASH') {
if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') {
if ($cachedblockers{$block}{'resources'}{$symb}) {
unless (grep(/^\Q$block\E$/,@blockers)) {
push(@blockers,$block);
}
}
}
}	}
if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') {	}
if ($cachedblockers{$block}{'maps'}{$map}) {	}
unless (grep(/^\Q$block\E$/,@blockers)) {	if (ref($docsblock->{'resources'}) eq 'HASH') {
push(@blockers,$block);	if ($tocheck->{'resources'}) {
}	if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
}	return 1;
}	}
}	}
}	}
return if ($noblock);	return;
return @blockers;
}
}	}

# -------------------------------- 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 7997 sub get_symb_from_alias {	Line 7249 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 8025 sub definerole {	Line 7277 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,$env{'user.home'});
} else {	} else {
return 'refused';	return 'refused';
}	}
Line 8052 sub metadata_query {	Line 7296 sub metadata_query {
my @server_list = (defined($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 8119 sub update_allusers_table {	Line 7363 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,$dom);
Line 8142 sub fetch_enrollment_query {	Line 7384 sub fetch_enrollment_query {
&logthis('fetch_enrollment_query: invalid queryid: '.$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 8187 sub fetch_enrollment_query {	Line 7429 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>);
Line 8559 sub auto_courserequest_checks {	Line 7795 sub auto_courserequest_checks {
}	}

sub auto_courserequest_validation {	sub auto_courserequest_validation {
my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;	my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
my ($homeserver,$response);	my ($homeserver,$response);
if ($dom =~ /^$match_domain$/) {	if ($dom =~ /^$match_domain$/) {
$homeserver = &domain($dom,'primary');	$homeserver = &domain($dom,'primary');
}	}
unless ($homeserver eq 'no_host') {	unless ($homeserver eq 'no_host') {
my $customdata;
if (ref($custominfo) eq 'HASH') {
$customdata = &freeze_escape($custominfo);
}
$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).	$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
':'.&escape($crstype).':'.&escape($inststatuslist).	':'.&escape($crstype).':'.&escape($inststatuslist).
':'.&escape($instcode).':'.&escape($instseclist).':'.	':'.&escape($instcode).':'.&escape($instseclist),
$customdata,$homeserver));	$homeserver));
}	}
return $response;	return $response;
}	}
Line 8591 sub auto_validate_class_sec {	Line 7824 sub auto_validate_class_sec {
return $response;	return $response;
}	}

sub auto_crsreq_update {
my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
$code,$accessstart,$accessend,$inbound) = @_;
my ($homeserver,%crsreqresponse);
if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');
}
unless (($homeserver eq 'no_host') \|\| ($homeserver eq '')) {
my $info;
if (ref($inbound) eq 'HASH') {
$info = &freeze_escape($inbound);
}
my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
':'.&escape($action).':'.&escape($ownername).':'.
&escape($ownerdomain).':'.&escape($fullname).':'.
&escape($title).':'.&escape($code).':'.
&escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$crsreqresponse{&unescape($key)} = &thaw_unescape($value);
}
}
}
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 8988 sub assignrole {	Line 8092 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 = '';	$refused = '';
Line 8996 sub assignrole {	Line 8100 sub assignrole {
my %domdefaults = &get_domain_defaults($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;	$checkbystatus = 1;
}	}
Line 9084 sub assignrole {	Line 8188 sub assignrole {
&courserolelog($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,$udom);
Line 9390 sub modifyuser {	Line 8493 sub modifyuser {
sub modifystudent {	sub modifystudent {
my ($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 9405 sub modifystudent {	Line 8508 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=$env{'request.course.id'}) {
Line 9459 sub modify_student_enrollment {	Line 8562 sub modify_student_enrollment {
my %old_entry = &Apache::lonnet::get('classlist',[$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 9983 sub modify_access_controls {	Line 9086 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 10278 sub dirlist {	Line 9381 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 10511 sub get_userresdata {	Line 9598 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 10530 sub get_userresdata {	Line 9615 sub get_userresdata {
# Parameters:	# Parameters:
# $name - Course/user name.	# $name - Course/user name.
# $domain - Name of the domain the user/course is registered on.	# $domain - Name of the domain the user/course is registered on.
# $type - Type of thing $name is (must be 'course' or 'user')	# $type - Type of thing $name is (must be 'course' or 'user'
# @which - Array of names of resources desired.	# @which - Array of names of resources desired.
# Returns:	# Returns:
# The value of the first reasource in @which that is found in the	# The value of the first reasource in @which that is found in the
Line 10549 sub resdata {	Line 9634 sub resdata {
}	}
if (!ref($result)) { return $result; }	if (!ref($result)) { return $result; }
foreach my $item (@which) {	foreach my $item (@which) {
if (ref($item) eq 'ARRAY') {	if (defined($result->{$item->[0]})) {
if (defined($result->{$item->[0]})) {	return [$result->{$item->[0]},$item->[1]];
return [$result->{$item->[0]},$item->[1]];	}
}
}
}	}
return undef;	return undef;
}	}

sub get_domain_ltitools {
my ($cdom) = @_;
my %ltitools;
my ($result,$cached)=&is_cached_new('ltitools',$cdom);
if (defined($cached)) {
if (ref($result) eq 'HASH') {
%ltitools = %{$result};
}
} else {
my %domconfig = &get_dom('configuration',['ltitools'],$cdom);
if (ref($domconfig{'ltitools'}) eq 'HASH') {
%ltitools = %{$domconfig{'ltitools'}};
my %encdomconfig = &get_dom('encconfig',['ltitools'],$cdom);
if (ref($encdomconfig{'ltitools'}) eq 'HASH') {
foreach my $id (keys(%ltitools)) {
if (ref($encdomconfig{'ltitools'}{$id}) eq 'HASH') {
foreach my $item ('key','secret') {
$ltitools{$id}{$item} = $encdomconfig{'ltitools'}{$id}{$item};
}
}
}
}
}
my $cachetime = 246060;
&do_cache_new('ltitools',$cdom,\%ltitools,$cachetime);
}
return %ltitools;
}

sub get_numsuppfiles {	sub get_numsuppfiles {
my ($cnum,$cdom,$ignorecache)=@_;	my ($cnum,$cdom,$ignorecache)=@_;
my $hashid=$cnum.':'.$cdom;	my $hashid=$cnum.':'.$cdom;
Line 10599 sub get_numsuppfiles {	Line 9653 sub get_numsuppfiles {
unless ($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 10794 sub EXT {	Line 9848 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 11041 sub metadata {	Line 10095 sub metadata {
# if it is a non metadata possible uri return quickly	# if it is a non metadata possible uri return quickly
if (($uri eq '') \|\|	if (($uri eq '') \|\|
(($uri =~ m\|^/*adm/\|) &&	(($uri =~ m\|^/*adm/\|) &&
($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard\|ext\.tool)$})) \|\|	($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard)$})) \|\|
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
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 11306 sub metadata {	Line 10360 sub metadata {

$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 11582 sub symbverify {	Line 10636 sub symbverify {
$ids=$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 ($ids) {
Line 11598 sub symbverify {	Line 10652 sub symbverify {
if (ref($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 11677 sub deversion {	Line 10731 sub deversion {
# ------------------------------------------------------ Return symb list entry	# ------------------------------------------------------ Return symb list entry

sub symbread {	sub symbread {
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_;	my ($thisfn,$donotrecurse)=@_;
my $cache_str='request.symbread.cached.'.$thisfn;	my $cache_str;
if (defined($env{$cache_str})) {	if ($thisfn ne '') {
if ($ignorecachednull) {	$cache_str='request.symbread.cached.'.$thisfn;
return $env{$cache_str} unless ($env{$cache_str} eq '');	if ($env{$cache_str} ne '') {
} else {
return $env{$cache_str};	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 11747 sub symbread {	Line 10799 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) {
$possibles->{$syval} = 1;
}
if ($checkforblock) {
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids});
if (@blockers) {
$syval = '';
return;
}
}
} elsif ((!$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);
if (ref($possibles) eq 'HASH') {
$possibles->{$syval} = 1;
}
if ($checkforblock) {
my @blockers = &has_comm_blocking('bre',$poss_syval,$file);
unless (@blockers > 0) {
$syval = $poss_syval;
$realpossible++;
}
} else {
$syval = $poss_syval;
$realpossible++;
}
}
}	}
}	}
if ($realpossible!=1) { $syval=''; }	if ($realpossible!=1) { $syval=''; }
Line 11794 sub symbread {	Line 10818 sub symbread {
$syval='';	$syval='';
}	}
}	}
untie(%bighash);	untie(%bighash)
}	}
}	}
if ($syval) {	if ($syval) {
Line 11947 sub rndseed {	Line 10971 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 12132 sub rndseed_CODE_64bit5 {	Line 11157 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 12528 sub default_login_domain {	Line 11549 sub default_login_domain {
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/\|\|;	$thisfn=~s\|^adm/coursedocs/showdoc/\|\|;
Line 12573 sub clutter {	Line 11592 sub clutter {
# &logthis("Got a blank emb style");	# &logthis("Got a blank emb style");
}	}
}	}
} elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) {
$thisfn='/adm/wrapper'.$thisfn;
}	}
return $thisfn;	return $thisfn;
}	}
Line 12659 sub get_dns {	Line 11676 sub get_dns {
$alldns{$host} = $protocol;	$alldns{$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$url");
Line 12667 sub get_dns {	Line 11684 sub get_dns {
delete($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,$hashref);
return;	return;
}	}
Line 12685 sub get_dns {	Line 11702 sub get_dns {
# ------------------------------------------------------Get DNS checksums file	# ------------------------------------------------------Get DNS checksums file
sub parse_dns_checksums_tab {	sub parse_dns_checksums_tab {
my ($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 $versions = shift(@{$lines});
if ($version eq $release) {	my %supported;
	if ($versions =~ /^VERSIONS\:([\w\.\,]+)$/) {
	my $releaseslist = $1;
	if ($releaseslist =~ /,/) {
	map { $supported{$_} = 1; } split(/,/,$releaseslist);
	} elsif ($releaseslist) {
	$supported{$releaseslist} = 1;
	}
	}
	if ($supported{$release}) {
	my $matchthis = 0;
foreach my $line (@{$lines}) {	foreach my $line (@{$lines}) {
my ($file,$version,$shasum) = split(/,/,$line);	if ($line =~ /^(\d[\w\.]+)$/) {
if ($file =~ m{^/etc/httpd/conf}) {	if ($matchthis) {
if ($webconfdir eq '/etc/apache2') {	last;
$file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};	} elsif ($1 eq $release) {
	$matchthis = 1;
}	}
	} elsif ($matchthis) {
	my ($file,$version,$shasum) = split(/,/,$line);
	$chksum{$file} = $shasum;
	$revnum{$file} = $version;
}	}
$chksum{$file} = $shasum;
$revnum{$file} = $version;
}	}
if (ref($hashref) eq 'HASH') {	if (ref($hashref) eq 'HASH') {
%{$hashref} = (	%{$hashref} = (
Line 12729 sub parse_dns_checksums_tab {	Line 11745 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'});	&get_dns('/adm/dns/checksums',\&parse_dns_checksums_tab,1,1,
my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});
my ($release,$timestamp) = split(/\-/,$loncaparev);
&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
\%checksums);	\%checksums);
return \%checksums;	return \%checksums;
}	}
Line 12766 sub fetch_dns_checksums {	Line 11779 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 = <$fh>;
Line 12821 sub fetch_dns_checksums {	Line 11834 sub fetch_dns_checksums {
my ($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 12868 sub fetch_dns_checksums {	Line 11866 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);
Line 12891 sub fetch_dns_checksums {	Line 11889 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 13014 sub fetch_dns_checksums {	Line 12011 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 13038 sub fetch_dns_checksums {	Line 12035 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{$name})) {
Line 13063 sub fetch_dns_checksums {	Line 12060 sub fetch_dns_checksums {
}	}
push(@{$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 13129 sub fetch_dns_checksums {	Line 12124 sub fetch_dns_checksums {
}	}

sub all_loncaparevs {	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);
}	}

# ------------------------------------------------------- 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>) {
Line 13148 sub all_loncaparevs {	Line 12143 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") {
Line 13240 BEGIN {	Line 12235 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 13307 $readit=1;	Line 12302 $readit=1;
if ($test != 0) { $_64bit=1; } else { $_64bit=0; }	if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
&logthis(" Detected 64bit platform ($_64bit)");	&logthis(" Detected 64bit platform ($_64bit)");
}	}

	{
	eval {
	($apache) =
	(Apache2::ServerUtil::get_server_version() =~ m{Apache/(\d+\.\d+)});
	};
	if ($@) {
	$apache = 1.3;
	}
	}

}	}
}	}

Line 13448 were new keys. I.E. 1:foo will become 1:	Line 12454 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 13584 escaped strings of the action recorded i	Line 12590 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 13625 in which case the null string is returne	Line 12615 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 13659 provided for types, will default to retu	Line 12648 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 13832 Inputs:	Line 12821 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 13900 values that are the resource value. I b	Line 12887 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 14003 will be stored for query	Line 12990 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 14026 and is a possible symb for the URL in $t	Line 13000 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 14081 expirespread($uname,$udom,$stype,$usymb)	Line 13055 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 14095 when viewing in course context.	Line 13069 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 14117 homeserver.	Line 13091 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 14154 $range should be either an integer '100'	Line 13122 $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 14268 server ($udom and $uhome are optional)	Line 13235 server ($udom and $uhome are optional)

=item *	=item *

get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults	get_domain_defaults($target_domain) : returns hash with defaults for
for: authentication, language, quotas, timezone, date locale, and portal URL in	authentication and language in the domain. Keys are: auth_def, auth_arg_def,
the target domain.	lang_def; corresponsing values are authentication type (internal, krb4, krb5,
	or localauth), initial password or a kerberos realm, language (e.g., en-us).
May also include additional key => value pairs for the following groups:	Values are retrieved from cache (if current), or from domain's configuration.db
	(if available), or lastly from values in lonTabs/dns_domain,tab,
=over	or lonTabs/domain.tab.

=item
disk quotas (MB allocated by default to portfolios and authoring spaces).

=over

=item defaultquota, authorquota

=back

=item
tools (availability of aboutme page, blog, webDAV access for authoring spaces,
portfolio for users).

=over

=item
aboutme, blog, webdav, portfolio

=back

=item
requestcourses: ability to request courses, and how requests are processed.

=over

=item
official, unofficial, community, textbook

=back

=item
inststatus: types of institutional affiliation, and order in which they are displayed.

=over

=item
inststatustypes, inststatusorder, inststatusguest

=back

=item
coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
for course's uploaded content.

=over

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

=back

=item
usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
on your servers.

=over

=item
remotesessions, hostedsessions

=back

=back

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
only the following domain defaults: auth_def, auth_arg_def, lang_def
-- corresponding values are authentication type (internal, krb4, krb5,
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
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.

Typical usage:

%domdefaults = &get_domain_defaults($target_domain);	%domdefaults = &get_auth_defaults($target_domain);

=back	=back

Line 14577 filelocation except for hrefs	Line 13468 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 14773 Returns:	Line 13663 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 14785 Args: (first three required; six others	Line 13675 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.1.1172.2.93.4.3
changed lines
	Added in v.1.1237