loncom/lonnet/perl/lonnet.pm - diff

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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.72 and 1.1223

version 1.1172.2.72, 2016/08/05 15:34:27	version 1.1223, 2013/05/21 18:57:45
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 109 require Exporter;	Line 112 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 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 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,$userhashref) = @_;	my ($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';	$name = 'lonID';
Line 632 sub check_for_valid_session {	Line 634 sub check_for_valid_session {
\|\| !defined($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 671 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;	$refused = 0;
}	}
Line 844 sub spareserver {	Line 847 sub spareserver {
if (ref($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, $lowest_load);
}	}
Line 856 sub spareserver {	Line 861 sub spareserver {
if (!$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 881 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 952 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 = '';	$isredirect = '';
Line 996 sub choose_server {	Line 976 sub choose_server {
}	}
} else {	} else {
($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 ($login_host ne '') {
Line 1169 sub can_host_session {	Line 1149 sub can_host_session {
sub spare_can_host {	sub spare_can_host {
my ($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 $canhost;
}	}
Line 1301 sub check_loadbalancing {	Line 1273 sub check_loadbalancing {
}	}
}	}
if (ref($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($currrules) eq 'HASH') {
Line 1351 sub check_loadbalancing {	Line 1323 sub check_loadbalancing {
}	}
}	}
} elsif (($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'],$serverhomedom);
Line 1360 sub check_loadbalancing {	Line 1332 sub check_loadbalancing {
}	}
}	}
if (ref($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 1416 sub check_loadbalancing {	Line 1388 sub check_loadbalancing {
$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 1606 sub idput {	Line 1578 sub idput {
}	}
}	}

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

sub iddel {
my ($udom,$idshashref,$uhome)=@_;
my %result=();
unless (ref($idshashref) eq 'HASH') {
return %result;
}
my %servers=();
while (my ($id,$uname) = each(%{$idshashref})) {
my $uhom;
if ($uhome) {
$uhom = $uhome;
} else {
$uhom=&homeserver($uname,$udom);
}
if ($uhom ne 'no_host') {
if ($servers{$uhom}) {
$servers{$uhom}.='&'.&escape($id);
} else {
$servers{$uhom}=&escape($id);
}
}
}
foreach my $server (keys(%servers)) {
$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
}
return %result;
}

# ------------------------------dump from db file owned by domainconfig user	# ------------------------------dump from db file owned by domainconfig user
sub dump_dom {	sub dump_dom {
my ($namespace, $udom, $regexp) = @_;	my ($namespace, $udom, $regexp) = @_;
Line 1651 sub dump_dom {	Line 1593 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 1659 sub get_dom {	Line 1600 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 1763 sub retrieve_inst_usertypes {	Line 1703 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(/:/,$rep);
Line 1785 sub retrieve_inst_usertypes {	Line 1726 sub retrieve_inst_usertypes {
push(@order,&unescape($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 {
Line 1934 sub get_instuser {	Line 1875 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 2070 sub inst_userrules {	Line 1954 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 2086 sub get_domain_defaults {	Line 1967 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'],$domain);
'coursecategories'],$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 2106 sub get_domain_defaults {	Line 1985 sub get_domain_defaults {
$domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};	$domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
} else {	} else {
$domdefaults{'defaultquota'} = $domconfig{'quotas'};	$domdefaults{'defaultquota'} = $domconfig{'quotas'};
}	}
my @usertools = ('aboutme','blog','webdav','portfolio');	my @usertools = ('aboutme','blog','webdav','portfolio');
foreach my $item (@usertools) {	foreach my $item (@usertools) {
if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {	if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
$domdefaults{$item} = $domconfig{'quotas'}{$item};	$domdefaults{$item} = $domconfig{'quotas'}{$item};
}	}
}	}
if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
$domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
}
}	}
if (ref($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 2126 sub get_domain_defaults {	Line 2002 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'};	foreach my $item ('canuse_pdfforms') {
$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};	$domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
}	}
foreach my $type (@coursetypes) {	if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {	$domdefaults{'officialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'official'};
unless ($type eq 'community') {	$domdefaults{'unofficialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'};
$domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
}
}
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 2170 sub get_domain_defaults {	Line 2022 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'} = $domconfig{'coursecategories'}{'unauth'};
}
}	}
&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
Line 2802 sub ssi {	Line 2613 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 2849 sub allowuploaded {	Line 2658 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 2857 sub allowuploaded {	Line 2666 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 2951 sub can_edit_resource {	Line 2760 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 ($env{'form.forceedit'}) {
Line 2982 sub can_edit_resource {	Line 2791 sub can_edit_resource {
}	}
} elsif ($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 3007 sub can_edit_resource {	Line 2816 sub can_edit_resource {
$cfile =~ s{^http://}{};	$cfile =~ s{^http://}{};
$cfile = '/adm/wrapper/ext/'.$cfile;	$cfile = '/adm/wrapper/ext/'.$cfile;
}	}
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
if ($env{'form.forceedit'}) {
$forceview = 1;
} else {
$forceedit = 1;
}
$cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
}	}
}	}
if ($uploaded \|\| $incourse) {	if ($uploaded \|\| $incourse) {
Line 3029 sub can_edit_resource {	Line 2831 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$/,@ids)) {
Line 3056 sub in_course {	Line 2858 sub in_course {
if ($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;	$skipuser = 1;
Line 3562 sub extract_embedded_items {	Line 3364 sub extract_embedded_items {
}	}
if (lc($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($tagname) eq 'script') {
Line 3651 sub extract_embedded_items {	Line 3453 sub extract_embedded_items {
}	}
}	}
}	}
if (lc($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 4233 sub get_my_roles {	Line 4017 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 4327 sub courseiddump {	Line 4111 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) { $domfilter=''; }
Line 4341 sub courseiddump {	Line 4124 sub courseiddump {
if (($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 4363 sub courseiddump {	Line 4145 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 4503 my $cachedkey='';	Line 4285 my $cachedkey='';
# The cached times for this user	# The cached times for this user
my %cachedtimes=();	my %cachedtimes=();
# When this was last done	# When this was last done
my $cachedtime='';	my $cachedtime=();

sub load_all_first_access {	sub load_all_first_access {
my ($uname,$udom)=@_;	my ($uname,$udom)=@_;
Line 4565 sub set_first_access {	Line 4347 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 5021 sub tmprestore {	Line 4717 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 5051 sub store {	Line 4747 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 5088 sub cstore {	Line 4784 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 5100 sub restore {	Line 4796 sub restore {
if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }

if (!$symb) {	if (!$symb) {
return if ($namespace eq 'courserequests');	unless ($symb=escape(&symbread())) { return ''; }
unless ($symb=escape(&symbread())) { return ''; }
} else {	} else {
unless ($namespace eq 'courserequests') {	$symb=&escape(&symbclean($symb));
$symb=&escape(&symbclean($symb));
}
}	}
if (!$namespace) {	if (!$namespace) {
unless ($namespace=$env{'request.course.id'}) {	unless ($namespace=$env{'request.course.id'}) {
Line 5244 sub privileged {	Line 4937 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 5268 sub privileged {	Line 4961 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 > $now);
}	}
}	}
Line 5309 sub privileged_by_domain {	Line 5002 sub privileged_by_domain {
my ($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 5357 sub rolesinit {	Line 5050 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 5449 sub set_arearole {	Line 5142 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 5570 sub set_userprivs {	Line 5263 sub set_userprivs {

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 5780 sub unserialize {	Line 5473 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 $escapedkeys hash keys won't get unescaped.
Line 5797 sub dump {	Line 5491 sub dump {
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);

	my $reply;
	if (grep { $_ eq $uhome } current_machine_ids()) {
	# user is hosted on this machine
	$reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
	$uname, $namespace, $regexp, $range)), $loncaparevs{$uhome});
	return %{unserialize($reply, $escapedkeys)};
	}
if ($regexp) {	if ($regexp) {
$regexp=&escape($regexp);	$regexp=&escape($regexp);
} else {	} else {
$regexp='.';	$regexp='.';
}
if (grep { $_ eq $uhome } &current_machine_ids()) {
# user is hosted on this machine
my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,
$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
return %{&unserialize($reply, $escapedkeys)};
}	}
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(/\&/,$rep);
Line 5814 sub dump {	Line 5509 sub dump {
if (!($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 5858 sub currentdump {	Line 5554 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 5984 sub newput {	Line 5680 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 5998 sub putstore {	Line 5694 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 6117 sub tmpdel {	Line 5802 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 6137 sub get_timebased_id {	Line 5822 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 6167 sub get_timebased_id {	Line 5852 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 6192 sub get_timebased_id {	Line 5872 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 6201 sub get_timebased_id {	Line 5880 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 {
Line 6470 sub usertools_access {	Line 6138 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 6486 sub usertools_access {	Line 6153 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 6505 sub usertools_access {	Line 6172 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 6767 sub customaccess {	Line 6434 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 6962 sub allowed {	Line 6629 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 6983 sub allowed {	Line 6645 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 {
$thisallowed='F';
}
}	}
}	}
}	}
Line 7046 sub allowed {	Line 6704 sub allowed {
=~/\Q$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 7088 sub allowed {	Line 6742 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 7327 sub constructaccess {	Line 6977 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 7373 sub get_comm_blocks {	Line 6997 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,$2);
Line 7395 sub get_commblock_resources {	Line 7025 sub get_commblock_resources {
if (ref($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,$block);
	}
}	}
}	}
}	}
Line 7412 sub get_commblock_resources {	Line 7046 sub get_commblock_resources {
my @to_test;	my @to_test;
if (ref($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",$symb);
last;	last;
}	}
}	}
Line 7444 sub get_commblock_resources {	Line 7079 sub get_commblock_resources {
}	}
}	}
}	}
}	if ($interval[0] =~ /\d+/) {
if ($interval[0] =~ /^\d+$/) {	my $first_access;
my $first_access;	if ($type eq 'resource') {
if ($type eq 'resource') {	$first_access=&get_first_access($interval[1],$item);
$first_access=&get_first_access($interval[1],$item);	} elsif ($type eq 'map') {
} elsif ($type eq 'map') {	$first_access=&get_first_access($interval[1],undef,$item);
$first_access=&get_first_access($interval[1],undef,$item);	} else {
} else {	$first_access=&get_first_access($interval[1]);
$first_access=&get_first_access($interval[1]);	}
}	if ($first_access) {
if ($first_access) {	my $timesup = $first_access+$interval[0];
my $timesup = $first_access+$interval[0];	if ($timesup > $now) {
if ($timesup > $now) {	foreach my $res (@to_test) {
my $activeblock;	if ($res->is_problem()) {
foreach my $res (@to_test) {	if ($res->completable()) {
if ($res->answerable()) {	unless (grep(/^\Q$block\E$/,@blockers)) {
$activeblock = 1;	push(@blockers,$block);
last;	}
}	last;
}	}
if ($activeblock) {
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
$blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
}
}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
}	}
}	}
}	}
Line 7483 sub get_commblock_resources {	Line 7109 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 7651 sub definerole {	Line 7244 sub definerole {
# ---------------- Make a metadata query against the network of library servers	# ---------------- Make a metadata query against the network of library servers

sub metadata_query {	sub metadata_query {
my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;	my ($query,$custom,$customshow,$server_array)=@_;
my %rhash;	my %rhash;
my %libserv = &all_library();	my %libserv = &all_library();
my @server_list = (defined($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 $domains = '';
if (ref($domains_hash) eq 'HASH') {
$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),$server);
$rhash{$server}=$reply;	$rhash{$server}=$reply;
}	}
else {	else {
my $reply=&reply("querysend:".&escape($query).':'.	my $reply=&reply("querysend:".&escape($query).':'.
&escape($custom).':'.&escape($customshow).':'.&escape($domains),	&escape($custom).':'.&escape($customshow),
$server);	$server);
$rhash{$server}=$reply;	$rhash{$server}=$reply;
}	}
Line 8156 sub auto_courserequest_checks {	Line 7745 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 8188 sub auto_validate_class_sec {	Line 7774 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 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 8558 sub assignrole {	Line 8042 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 = '';	$refused = '';
Line 8566 sub assignrole {	Line 8050 sub assignrole {
my %domdefaults = &get_domain_defaults($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 8659 sub assignrole {	Line 8143 sub assignrole {
$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 8971 sub modifystudent {	Line 8455 sub modifystudent {
$desiredhome,$email,$inststatus);	$desiredhome,$email,$inststatus);
unless ($reply eq 'ok') { return $reply; }	unless ($reply eq 'ok') { return $reply; }
# This will cause &modify_student_enrollment to get the uid from the	# This will cause &modify_student_enrollment to get the uid from the
# student's environment	# students 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);	$cid,$selfenroll,$context,$credits);
return $reply;	return $reply;
}	}
Line 9282 sub store_userdata {	Line 8766 sub store_userdata {
$namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';	$namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
}	}
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
unless ($namespace eq 'courserequests') {
$datakey = &escape($datakey);
}
$result = &reply("store:$udom:$uname:$namespace:$datakey:".	$result = &reply("store:$udom:$uname:$namespace:$datakey:".
$namevalue,$uhome);	$namevalue,$uhome);
}	}
Line 10064 sub get_userresdata {	Line 9545 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 10109 sub resdata {	Line 9588 sub resdata {
return undef;	return undef;
}	}

sub get_numsuppfiles {
my ($cnum,$cdom,$ignorecache)=@_;
my $hashid=$cnum.':'.$cdom;
my ($suppcount,$cached);
unless ($ignorecache) {
($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
}
unless (defined($cached)) {
my $chome=&homeserver($cnum,$cdom);
unless ($chome eq 'no_host') {
($suppcount,my $errors) = (0,0);
my $suppmap = 'supplemental.sequence';
($suppcount,$errors) =
&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
}
&do_cache_new('suppcount',$hashid,$suppcount,600);
}
return $suppcount;
}

#	#
# EXT resource caching routines	# EXT resource caching routines
#	#
Line 10157 sub EXT_cache_set {	Line 9616 sub EXT_cache_set {
# --------------------------------------------------------- Value of a Variable	# --------------------------------------------------------- Value of a Variable
sub EXT {	sub EXT {

my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;	my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;
unless ($varname) { return ''; }	unless ($varname) { return ''; }
#get real user name/domain, courseid and symb	#get real user name/domain, courseid and symb
my $courseid;	my $courseid;
Line 10272 sub EXT {	Line 9731 sub EXT {
if (!$symbparm) { $symbparm=&symbread(); }	if (!$symbparm) { $symbparm=&symbread(); }
}	}

if ($qualifier eq '') {	if ($space eq 'title') {
if ($space eq 'title') {	if (!$symbparm) { $symbparm = $env{'request.filename'}; }
if (!$symbparm) { $symbparm = $env{'request.filename'}; }	return &gettitle($symbparm);
return &gettitle($symbparm);	}
}

if ($space eq 'map') {	if ($space eq 'map') {
my ($map) = &decode_symb($symbparm);	my ($map) = &decode_symb($symbparm);
return &symbread($map);	return &symbread($map);
}	}
if ($space eq 'maptitle') {	if ($space eq 'filename') {
my ($map) = &decode_symb($symbparm);	if ($symbparm) {
return &gettitle($map);	return &clutter((&decode_symb($symbparm))[2]);
}
if ($space eq 'filename') {
if ($symbparm) {
return &clutter((&decode_symb($symbparm))[2]);
}
return &hreflocation('',$env{'request.filename'});
}	}
	return &hreflocation('',$env{'request.filename'});
if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {	}
if ($space eq 'visibleparts') {
my $navmap = Apache::lonnavmaps::navmap->new();
my $item;
if (ref($navmap)) {
my $res = $navmap->getBySymb($symbparm);
my $parts = $res->parts();
if (ref($parts) eq 'ARRAY') {
$item = join(',',@{$parts});
}
undef($navmap);
}
return $item;
}
}
}

my ($section, $group, @groups);	my ($section, $group, @groups);
my ($courselevelm,$courselevel);	my ($courselevelm,$courselevel);
if (($courseid eq '') && ($cid)) {	if ($symbparm && defined($courseid) &&
$courseid = $cid;	$courseid eq $env{'request.course.id'}) {
}
if (($symbparm && $courseid) &&
(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {

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

Line 10567 sub metadata {	Line 10001 sub metadata {
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;	return undef;
}	}
if (($uri =~ /^priv/ \|\| $uri=~m{^home/httpd/html/priv})	if (($uri =~ /^priv/ \|\| $uri=~/home\/httpd\/html\/priv/)
&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {	&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {
return undef;	return undef;
}	}
Line 10828 sub metadata {	Line 10262 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 11104 sub symbverify {	Line 10538 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 ($ids) {
Line 11120 sub symbverify {	Line 10554 sub symbverify {
if (ref($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 11199 sub deversion {	Line 10633 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 11269 sub symbread {	Line 10701 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 11316 sub symbread {	Line 10720 sub symbread {
$syval='';	$syval='';
}	}
}	}
untie(%bighash);	untie(%bighash)
}	}
}	}
if ($syval) {	if ($syval) {
Line 11469 sub rndseed {	Line 10873 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 11654 sub rndseed_CODE_64bit5 {	Line 11059 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 12050 sub default_login_domain {	Line 11451 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 12179 sub get_dns {	Line 11578 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$url");
Line 12187 sub get_dns {	Line 11586 sub get_dns {
delete($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,$hashref);
return;	return;
}	}
Line 12205 sub get_dns {	Line 11604 sub get_dns {
# ------------------------------------------------------Get DNS checksums file	# ------------------------------------------------------Get DNS checksums file
sub parse_dns_checksums_tab {	sub parse_dns_checksums_tab {
my ($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 12249 sub parse_dns_checksums_tab {	Line 11647 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 12286 sub fetch_dns_checksums {	Line 11681 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 12373 sub fetch_dns_checksums {	Line 11768 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 12396 sub fetch_dns_checksums {	Line 11791 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 12519 sub fetch_dns_checksums {	Line 11913 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 12543 sub fetch_dns_checksums {	Line 11937 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{$name})) {
Line 12568 sub fetch_dns_checksums {	Line 11962 sub fetch_dns_checksums {
}	}
push(@{$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 12634 sub fetch_dns_checksums {	Line 12026 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
{
sub load_loncaparevs {
if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
while (my $configline=<$config>) {
chomp($configline);
my ($hostid,$loncaparev)=split(/:/,$configline);
$loncaparevs{$hostid}=$loncaparev;
}
close($config);
}
}
}
}	}

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


BEGIN {	BEGIN {

# ----------------------------------- Read loncapa.conf and loncapa_apache.conf	# ----------------------------------- Read loncapa.conf and loncapa_apache.conf
Line 12745 BEGIN {	Line 12104 BEGIN {
close($config);	close($config);
}	}

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

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

# ---------------------------------------------------------- Read releaseslist XML
{	{
my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';	my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
if (-e $file) {	if (-e $file) {
Line 12812 $readit=1;	Line 12190 $readit=1;
if ($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 12952 were new keys. I.E. 1:foo will become 1:	Line 12341 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,$home);
&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);	&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$home);

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

Line 13089 escaped strings of the action recorded i	Line 12478 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 13163 provided for types, will default to retu	Line 12536 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 13236 or when Autoupdate.pl is run by cron in	Line 12609 or when Autoupdate.pl is run by cron in
modifystudent	modifystudent

modify a student's enrollment and identification information.	modify a student's enrollment and identification information.
The course id is resolved based on the current user's environment.	The course id is resolved based on the current users environment.
This means the invoking user must be a course coordinator or otherwise	This means the envoking user must be a course coordinator or otherwise
associated with a course.	associated with a course.

This call is essentially a wrapper for lonnet::modifyuser and	This call is essentially a wrapper for lonnet::modifyuser and
Line 13297 Inputs:	Line 12670 Inputs:

modify_student_enrollment	modify_student_enrollment

Change a student's enrollment status in a class. The environment variable	Change a students enrollment status in a class. The environment variable
'role.request.course' must be defined for this function to proceed.	'role.request.course' must be defined for this function to proceed.

Inputs:	Inputs:

=over 4	=over 4

=item $udom, student's domain	=item $udom, students domain

=item $uname, student's name	=item $uname, students name

=item $uid, student's user id	=item $uid, students user id

=item $first, student's first name	=item $first, students first name

=item $middle	=item $middle

Line 13392 If defined, the supplied username is use	Line 12765 If defined, the supplied username is use
resdata($name,$domain,$type,@which) : request for current parameter	resdata($name,$domain,$type,@which) : request for current parameter
setting for a specific $type, where $type is either 'course' or 'user',	setting for a specific $type, where $type is either 'course' or 'user',
@what should be a list of parameters to ask about. This routine caches	@what should be a list of parameters to ask about. This routine caches
answers for 10 minutes.	answers for 5 minutes.

=item *	=item *

Line 13401 data base, returning a hash that is keye	Line 12774 data base, returning a hash that is keye
values that are the resource value. I believe that the timestamps and	values that are the resource value. I believe that the timestamps and
versions are also returned.	versions are also returned.

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

=back	=back

=head2 Course Modification	=head2 Course Modification
Line 13464 resource. Expects the local filesystem p	Line 12833 resource. Expects the local filesystem p

=item *	=item *

EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates	EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of
and returns the value of a variety of different possible values,	a vairety of different possible values, $varname should be a request
$varname should be a request string, and the other parameters can be	string, and the other parameters can be used to specify who and what
used to specify who and what one is asking about. Ordinarily, $cid	one is asking about.
does not need to be specified, as it is retrived from
$env{'request.course.id'}, but &Apache::lonnet::EXT() is called
within lonuserstate::loadmap() when initializing a course, before
$env{'request.course.id'} has been set, so it needs to be provided
in that one case.

Possible values for $varname are environment.lastname (or other item	Possible values for $varname are environment.lastname (or other item
from the envirnment hash), user.name (or someother aspect about the	from the envirnment hash), user.name (or someother aspect about the
Line 13505 will be stored for query	Line 12869 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 13528 and is a possible symb for the URL in $t	Line 12879 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 13583 expirespread($uname,$udom,$stype,$usymb)	Line 12934 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 13597 when viewing in course context.	Line 12948 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 13619 homeserver.	Line 12970 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 13656 $range should be either an integer '100'	Line 13001 $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 13770 server ($udom and $uhome are optional)	Line 13114 server ($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 14079 filelocation except for hrefs	Line 13347 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 14275 Returns:	Line 13542 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 14287 Args: (first three required; six others	Line 13554 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.1.1172.2.72
changed lines
	Added in v.1.1223