loncom/lonnet/perl/lonnet.pm - diff

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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.118.2.14 and 1.1462

version 1.1172.2.118.2.14, 2021/01/04 13:41:25	version 1.1462, 2021/08/01 19:28:11
Line 71 delayed.	Line 71 delayed.
package Apache::lonnet;	package Apache::lonnet;

use strict;	use strict;
use LWP::UserAgent();
use HTTP::Date;	use HTTP::Date;
use Image::Magick;	use Image::Magick;
use CGI::Cookie;	use CGI::Cookie;

	use Encode;

use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex	use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex
$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease	$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
%managerstab $passwdmin);	%managerstab $passwdmin);
Line 95 use Cache::Memcached;	Line 96 use Cache::Memcached;
use Digest::MD5;	use Digest::MD5;
use Math::Random;	use Math::Random;
use File::MMagic;	use File::MMagic;
	use Net::CIDR;
	use Sys::Hostname::FQDN();
use LONCAPA qw(:DEFAULT :match);	use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;	use LONCAPA::Configuration;
use LONCAPA::lonmetadata;	use LONCAPA::lonmetadata;
use LONCAPA::Lond;	use LONCAPA::Lond;
	use LONCAPA::LWPReq;
use LONCAPA::transliterate;	use LONCAPA::transliterate;

use File::Copy;	use File::Copy;
Line 111 require Exporter;	Line 115 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 126 our @EXPORT = qw(%env);	Line 131 our @EXPORT = qw(%env);
my $now = time();	my $now = time();
my $id=$now.'00000'.$$.'00000'.$logid;	my $id=$now.'00000'.$$.'00000'.$logid;
my $ip = &get_requestor_ip();	my $ip = &get_requestor_ip();
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' => $ip,	'exe_ip' => $ip,
'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 183 sub create_connection {	Line 188 sub create_connection {
Type => SOCK_STREAM,	Type => SOCK_STREAM,
Timeout => 10);	Timeout => 10);
return 0 if (!$client);	return 0 if (!$client);
print $client (join(':',$hostname,$lonid,&machine_ids($hostname))."\n");	print $client (join(':',$hostname,$lonid,&machine_ids($hostname),$loncaparevs{$lonid})."\n");
my $result = <$client>;	my $result = <$client>;
chomp($result);	chomp($result);
return 1 if ($result eq 'done');	return 1 if ($result eq 'done');
Line 228 sub get_server_distarch {	Line 233 sub get_server_distarch {
return;	return;
}	}

	sub get_servercerts_info {
	my ($lonhost,$hostname,$context) = @_;
	return if ($lonhost eq '');
	if ($hostname eq '') {
	$hostname = &hostname($lonhost);
	}
	return if ($hostname eq '');
	my ($rep,$uselocal);
	if ($context eq 'install') {
	$uselocal = 1;
	} elsif (grep { $_ eq $lonhost } &current_machine_ids()) {
	$uselocal = 1;
	}
	if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) {
	my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
	if ($distro eq '') {
	$uselocal = 0;
	} elsif ($distro =~ /^(?:centos\|redhat\|scientific)(\d+)$/) {
	if ($1 < 6) {
	$uselocal = 0;
	}
	} elsif ($distro =~ /^(?:sles)(\d+)$/) {
	if ($1 < 12) {
	$uselocal = 0;
	}
	}
	}
	if ($uselocal) {
	$rep = LONCAPA::Lond::server_certs(\%perlvar,$lonhost,$hostname);
	} else {
	$rep=&reply('servercerts',$lonhost);
	}
	my ($result,%returnhash);
	if (($rep=~/^(refused\|rejected\|error)/) \|\| ($rep eq 'con_lost') \|\|
	($rep eq 'unknown_cmd')) {
	$result = $rep;
	} else {
	$result = 'ok';
	my @pairs=split(/\&/,$rep);
	foreach my $item (@pairs) {
	my ($key,$value)=split(/=/,$item,2);
	my $what = &unescape($key);
	$returnhash{$what}=&thaw_unescape($value);
	}
	}
	return ($result,\%returnhash);
	}

sub get_server_loncaparev {	sub get_server_loncaparev {
my ($dom,$lonhost,$ignore_cache,$caller) = @_;	my ($dom,$lonhost,$ignore_cache,$caller) = @_;
if (defined($lonhost)) {	if (defined($lonhost)) {
Line 262 sub get_server_loncaparev {	Line 315 sub get_server_loncaparev {
$answer = &reply('serverloncaparev',$lonhost);	$answer = &reply('serverloncaparev',$lonhost);
if (($answer eq 'unknown_cmd') \|\| ($answer eq 'con_lost')) {	if (($answer eq 'unknown_cmd') \|\| ($answer eq 'con_lost')) {
if ($caller eq 'loncron') {	if ($caller eq 'loncron') {
my $ua=new LWP::UserAgent;
$ua->timeout(4);
my $hostname = &hostname($lonhost);	my $hostname = &hostname($lonhost);
my $protocol = $protocol{$lonhost};	my $protocol = $protocol{$lonhost};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
my $url = $protocol.'://'.$hostname.'/adm/about.html';	my $url = $protocol.'://'.$hostname.'/adm/about.html';
my $request=new HTTP::Request('GET',$url);	my $request=new HTTP::Request('GET',$url);
my $response=$ua->request($request);	my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,4,1);
unless ($response->is_error()) {	unless ($response->is_error()) {
my $content = $response->content;	my $content = $response->content;
if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {	if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
Line 360 sub remote_devalidate_cache {	Line 411 sub remote_devalidate_cache {
my $items;	my $items;
return unless (ref($cachekeys) eq 'ARRAY');	return unless (ref($cachekeys) eq 'ARRAY');
my $cachestr = join('&',@{$cachekeys});	my $cachestr = join('&',@{$cachekeys});
return &reply('devalidatecache:'.&escape($cachestr),$lonhost);	my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
	return $response;
}	}

# -------------------------------------------------- Non-critical communication	# -------------------------------------------------- Non-critical communication
Line 392 sub subreply {	Line 444 sub subreply {
} else {	} else {
&create_connection(&hostname($server),$server);	&create_connection(&hostname($server),$server);
}	}
sleep(0.1); # Try again later if failed connection.	sleep(0.1); # Try again later if failed connection.
}	}
my $answer;	my $answer;
if ($client) {	if ($client) {
Line 416 sub reply {	Line 468 sub reply {
my $subcmd = $1;	my $subcmd = $1;
if (($subcmd eq 'auth') \|\| ($subcmd eq 'passwd') \|\|	if (($subcmd eq 'auth') \|\| ($subcmd eq 'passwd') \|\|
($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|	($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'putdom') \|\| ($subcmd eq 'autoexportgrades')) {	($subcmd eq 'putdom') \|\| ($subcmd eq 'autoexportgrades') \|\|
	($subcmd eq 'put')) {
(undef,undef,my @rest) = split(/:/,$cmd);	(undef,undef,my @rest) = split(/:/,$cmd);
if (($subcmd eq 'auth') \|\| ($subcmd eq 'putdom')) {	if (($subcmd eq 'auth') \|\| ($subcmd eq 'putdom')) {
splice(@rest,2,1,'Hidden');	splice(@rest,2,1,'Hidden');
} elsif ($subcmd eq 'passwd') {	} elsif ($subcmd eq 'passwd') {
splice(@rest,2,2,('Hidden','Hidden'));	splice(@rest,2,2,('Hidden','Hidden'));
} elsif (($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|	} elsif (($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'autoexportgrades')) {	($subcmd eq 'autoexportgrades') \|\| ($subcmd eq 'put')) {
splice(@rest,3,1,'Hidden');	splice(@rest,3,1,'Hidden');
}	}
$logged = join(':',('encrypt:'.$subcmd,@rest));	$logged = join(':',('encrypt:'.$subcmd,@rest));
Line 465 sub reconlonc {	Line 518 sub reconlonc {
&logthis("lonc at pid $loncpid responding, sending USR1");	&logthis("lonc at pid $loncpid responding, sending USR1");
kill USR1 => $loncpid;	kill USR1 => $loncpid;
sleep 1;	sleep 1;
} else {	} else {
&logthis(	&logthis(
"<font color=\"blue\">WARNING:".	"<font color=\"blue\">WARNING:".
" lonc at pid $loncpid not responding, giving up</font>");	" lonc at pid $loncpid not responding, giving up</font>");
Line 660 sub check_for_valid_session {	Line 713 sub check_for_valid_session {
}	}
}	}
if (!-e "$lonidsdir/$handle.id") {	if (!-e "$lonidsdir/$handle.id") {
if ((ref($domref)) && ($name eq 'lonID') &&	if ((ref($domref)) && ($name eq 'lonID') &&
($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {	($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
my ($possuname,$possudom,$possuhome) = ($1,$2,$3);	my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {	if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
Line 689 sub check_for_valid_session {	Line 742 sub check_for_valid_session {
if (ref($userhashref) eq 'HASH') {	if (ref($userhashref) eq 'HASH') {
$userhashref->{'name'} = $disk_env{'user.name'};	$userhashref->{'name'} = $disk_env{'user.name'};
$userhashref->{'domain'} = $disk_env{'user.domain'};	$userhashref->{'domain'} = $disk_env{'user.domain'};
	if ($disk_env{'request.role'}) {
	$userhashref->{'role'} = $disk_env{'request.role'};
	}
	$userhashref->{'lti'} = $disk_env{'request.lti.login'};
	if ($userhashref->{'lti'}) {
	$userhashref->{'ltitarget'} = $disk_env{'request.lti.target'};
	$userhashref->{'ltiuri'} = $disk_env{'request.lti.uri'};
	}
}	}
untie(%disk_env);	untie(%disk_env);

Line 917 sub userload {	Line 978 sub userload {
# ------------------------------ Find server with least workload from spare.tab	# ------------------------------ Find server with least workload from spare.tab

sub spareserver {	sub spareserver {
my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;	my ($r,$loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
my $spare_server;	my $spare_server;
if ($userloadpercent !~ /\d/) { $userloadpercent=0; }	if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent	my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
Line 962 sub spareserver {	Line 1023 sub spareserver {
if ($protocol{$spare_server} eq 'https') {	if ($protocol{$spare_server} eq 'https') {
$protocol = $protocol{$spare_server};	$protocol = $protocol{$spare_server};
}	}
	my $alias = &Apache::lonnet::use_proxy_alias($r,$spare_server);
	$hostname = $alias if ($alias ne '');
$spare_server = $protocol.'://'.$hostname;	$spare_server = $protocol.'://'.$hostname;
}	}
}	}
Line 1028 sub find_existing_session {	Line 1091 sub find_existing_session {
return;	return;
}	}

	sub delusersession {
	my ($lonid,$udom,$uname) = @_;
	my $uprimary_id = &domain($udom,'primary');
	my $uintdom = &internet_dom($uprimary_id);
	my $intdom = &internet_dom($lonid);
	my $serverhomedom = &host_domain($lonid);
	if (($uintdom ne '') && ($uintdom eq $intdom)) {
	return &reply(join(':','delusersession',
	map {&escape($_)} ($udom,$uname)),$lonid);
	}
	return;
	}

# check if user's browser sent load balancer cookie and server still has session	# check if user's browser sent load balancer cookie and server still has session
# and is not overloaded.	# and is not overloaded.
sub check_for_balancer_cookie {	sub check_for_balancer_cookie {
Line 1143 sub choose_server {	Line 1219 sub choose_server {
}	}
}	}
foreach my $lonhost (keys(%servers)) {	foreach my $lonhost (keys(%servers)) {
my $loginvia;
if ($skiploadbal) {	if ($skiploadbal) {
if (ref($balancers) eq 'HASH') {	if (ref($balancers) eq 'HASH') {
next if (exists($balancers->{$lonhost}));	next if (exists($balancers->{$lonhost}));
}	}
}	}
	my $loginvia;
if ($checkloginvia) {	if ($checkloginvia) {
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};	$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
if ($loginvia) {	if ($loginvia) {
Line 1376 sub spare_can_host {	Line 1452 sub spare_can_host {
$canhost = 0;	$canhost = 0;
}	}
}	}
	if ($canhost) {
	if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') {
	if ($defdomdefaults{'offloadoth'}{$try_server}) {
	unless (&shared_institution($udom,$try_server)) {
	$canhost = 0;
	}
	}
	}
	}
if (($canhost) && ($uint_dom)) {	if (($canhost) && ($uint_dom)) {
my @intdoms;	my @intdoms;
my $internet_names = &get_internet_names($try_server);	my $internet_names = &get_internet_names($try_server);
Line 1474 sub get_lonbalancer_config {	Line 1559 sub get_lonbalancer_config {
sub check_loadbalancing {	sub check_loadbalancing {
my ($uname,$udom,$caller) = @_;	my ($uname,$udom,$caller) = @_;
my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,	my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
$rule_in_effect,$offloadto,$otherserver,$setcookie);	$rule_in_effect,$offloadto,$otherserver,$setcookie,$dom_balancers);
my $lonhost = $perlvar{'lonHostID'};	my $lonhost = $perlvar{'lonHostID'};
my @hosts = &current_machine_ids();	my @hosts = &current_machine_ids();
my $uprimary_id = &Apache::lonnet::domain($udom,'primary');	my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);	my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
my $intdom = &Apache::lonnet::internet_dom($lonhost);	my $intdom = &Apache::lonnet::internet_dom($lonhost);
my $serverhomedom = &host_domain($lonhost);	my $serverhomedom = &host_domain($lonhost);
my $domneedscache;	my $domneedscache;
my $cachetime = 606024;	my $cachetime = 606024;

if (($uintdom ne '') && ($uintdom eq $intdom)) {	if (($uintdom ne '') && ($uintdom eq $intdom)) {
Line 1501 sub check_loadbalancing {	Line 1586 sub check_loadbalancing {
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1562 sub check_loadbalancing {	Line 1647 sub check_loadbalancing {
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1638 sub check_loadbalancing {	Line 1723 sub check_loadbalancing {
if (($is_balancer) && (!$homeintdom)) {	if (($is_balancer) && (!$homeintdom)) {
undef($setcookie);	undef($setcookie);
}	}
return ($is_balancer,$otherserver,$setcookie);	return ($is_balancer,$otherserver,$setcookie,$offloadto,$dom_balancers);
}	}

sub check_balancer_result {	sub check_balancer_result {
my ($result,@hosts) = @_;	my ($result,@hosts) = @_;
my ($is_balancer,$currtargets,$currrules,$setcookie);	my ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers);
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
if ($result->{'lonhost'} ne '') {	if ($result->{'lonhost'} ne '') {
my $currbalancer = $result->{'lonhost'};	my $currbalancer = $result->{'lonhost'};
Line 1652 sub check_balancer_result {	Line 1737 sub check_balancer_result {
$currtargets = $result->{'targets'};	$currtargets = $result->{'targets'};
$currrules = $result->{'rules'};	$currrules = $result->{'rules'};
}	}
	$dom_balancers = $currbalancer;
} else {	} else {
foreach my $key (keys(%{$result})) {	if (keys(%{$result})) {
if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&	foreach my $key (keys(%{$result})) {
(ref($result->{$key}) eq 'HASH')) {	if (($key ne '') && (grep(/^\Q$key\E$/,@hosts)) &&
$is_balancer = 1;	(ref($result->{$key}) eq 'HASH')) {
$currrules = $result->{$key}{'rules'};	$is_balancer = 1;
$currtargets = $result->{$key}{'targets'};	$currrules = $result->{$key}{'rules'};
$setcookie = $result->{$key}{'cookie'};	$currtargets = $result->{$key}{'targets'};
last;	$setcookie = $result->{$key}{'cookie'};
	last;
	}
}	}
	$dom_balancers = join(',',sort(keys(%{$result})));
}	}
}	}
}	}
return ($is_balancer,$currtargets,$currrules,$setcookie);	return ($is_balancer,$currtargets,$currrules,$setcookie,$dom_balancers);
}	}

sub get_loadbalancer_targets {	sub get_loadbalancer_targets {
Line 1737 sub internet_dom_servers {	Line 1826 sub internet_dom_servers {
return %uniqservers;	return %uniqservers;
}	}

	sub trusted_domains {
	my ($cmdtype,$calldom) = @_;
	my ($trusted,$untrusted);
	if (&domain($calldom) eq '') {
	return ($trusted,$untrusted);
	}
	unless ($cmdtype =~ /^(content\|shared\|enroll\|coaurem\|othcoau\|domroles\|catalog\|reqcrs\|msg)$/) {
	return ($trusted,$untrusted);
	}
	my $callprimary = &domain($calldom,'primary');
	my $intcalldom = &Apache::lonnet::internet_dom($callprimary);
	if ($intcalldom eq '') {
	return ($trusted,$untrusted);
	}

	my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new('trust',$calldom);
	unless (defined($cached)) {
	my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$calldom);
	&Apache::lonnet::do_cache_new('trust',$calldom,$domconfig{'trust'},3600);
	$trustconfig = $domconfig{'trust'};
	}
	if (ref($trustconfig)) {
	my (%possexc,%possinc,@allexc,@allinc);
	if (ref($trustconfig->{$cmdtype}) eq 'HASH') {
	if (ref($trustconfig->{$cmdtype}->{'exc'}) eq 'ARRAY') {
	map { $possexc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'exc'}};
	}
	if (ref($trustconfig->{$cmdtype}->{'inc'}) eq 'ARRAY') {
	$possinc{$intcalldom} = 1;
	map { $possinc{$_} = 1; } @{$trustconfig->{$cmdtype}->{'inc'}};
	}
	}
	if (keys(%possexc)) {
	if (keys(%possinc)) {
	foreach my $key (sort(keys(%possexc))) {
	next if ($key eq $intcalldom);
	unless ($possinc{$key}) {
	push(@allexc,$key);
	}
	}
	} else {
	@allexc = sort(keys(%possexc));
	}
	}
	if (keys(%possinc)) {
	$possinc{$intcalldom} = 1;
	@allinc = sort(keys(%possinc));
	}
	if ((@allexc > 0) \|\| (@allinc > 0)) {
	my %doms_by_intdom;
	my %allintdoms = &all_host_intdom();
	my %alldoms = &all_host_domain();
	foreach my $key (%allintdoms) {
	if (ref($doms_by_intdom{$allintdoms{$key}}) eq 'ARRAY') {
	unless (grep(/^\Q$alldoms{$key}\E$/,@{$doms_by_intdom{$allintdoms{$key}}})) {
	push(@{$doms_by_intdom{$allintdoms{$key}}},$alldoms{$key});
	}
	} else {
	$doms_by_intdom{$allintdoms{$key}} = [$alldoms{$key}];
	}
	}
	foreach my $exc (@allexc) {
	if (ref($doms_by_intdom{$exc}) eq 'ARRAY') {
	push(@{$untrusted},@{$doms_by_intdom{$exc}});
	}
	}
	foreach my $inc (@allinc) {
	if (ref($doms_by_intdom{$inc}) eq 'ARRAY') {
	push(@{$trusted},@{$doms_by_intdom{$inc}});
	}
	}
	}
	}
	return ($trusted,$untrusted);
	}

	sub will_trust {
	my ($cmdtype,$domain,$possdom) = @_;
	return 1 if ($domain eq $possdom);
	my ($trustedref,$untrustedref) = &trusted_domains($cmdtype,$possdom);
	my $willtrust;
	if ((ref($trustedref) eq 'ARRAY') && (@{$trustedref} > 0)) {
	if (grep(/^\Q$domain\E$/,@{$trustedref})) {
	$willtrust = 1;
	}
	} elsif ((ref($untrustedref) eq 'ARRAY') && (@{$untrustedref} > 0)) {
	unless (grep(/^\Q$domain\E$/,@{$untrustedref})) {
	$willtrust = 1;
	}
	} else {
	$willtrust = 1;
	}
	return $willtrust;
	}

# ---------------------- Find the homebase for a user from domain's lib servers	# ---------------------- Find the homebase for a user from domain's lib servers

my %homecache;	my %homecache;
Line 1762 sub homeserver {	Line 1946 sub homeserver {
return 'no_host';	return 'no_host';
}	}

# ------------------------------------- Find the usernames behind a list of IDs	# ----- Find the usernames behind a list of student/employee IDs or clicker IDs

sub idget {	sub idget {
my ($udom,@ids)=@_;	my ($udom,$idsref,$namespace)=@_;
my %returnhash=();	my %returnhash=();
	my @ids=();
	if (ref($idsref) eq 'ARRAY') {
	@ids = @{$idsref};
	} else {
	return %returnhash;
	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}

my %servers = &get_servers($udom,'library');	my %servers = &get_servers($udom,'library');
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
my $idlist=join('&', map { &escape($_); } @ids);	my $idlist=join('&', map { &escape($_); } @ids);
$idlist=~tr/A-Z/a-z/;	if ($namespace eq 'ids') {
my $reply=&reply("idget:$udom:".$idlist,$tryserver);	$idlist=~tr/A-Z/a-z/;
	}
	my $reply;
	if ($namespace eq 'ids') {
	$reply=&reply("idget:$udom:".$idlist,$tryserver);
	} else {
	$reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver);
	}
my @answer=();	my @answer=();
if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {	if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
@answer=split(/\&/,$reply);	@answer=split(/\&/,$reply);
Line 1781 sub idget {	Line 1981 sub idget {
for ($i=0;$i<=$#ids;$i++) {	for ($i=0;$i<=$#ids;$i++) {
if ($answer[$i]) {	if ($answer[$i]) {
$returnhash{$ids[$i]}=&unescape($answer[$i]);	$returnhash{$ids[$i]}=&unescape($answer[$i]);
}	}
}	}
}	}
return %returnhash;	return %returnhash;
}	}

Line 1798 sub idrget {	Line 1998 sub idrget {
return %returnhash;	return %returnhash;
}	}

# ------------------------------- Store away a list of names and associated IDs	# Store away a list of names and associated student/employee IDs or clicker IDs

sub idput {	sub idput {
my ($udom,%ids)=@_;	my ($udom,$idsref,$uhom,$namespace)=@_;
my %servers=();	my %servers=();
	my %ids=();
	my %byid = ();
	if (ref($idsref) eq 'HASH') {
	%ids=%{$idsref};
	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}
foreach my $uname (keys(%ids)) {	foreach my $uname (keys(%ids)) {
&cput('environment',{'id'=>$ids{$uname}},$udom,$uname);	&cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
my $uhom=&homeserver($uname,$udom);	if ($uhom eq '') {
	$uhom=&homeserver($uname,$udom);
	}
if ($uhom ne 'no_host') {	if ($uhom ne 'no_host') {
my $id=&escape($ids{$uname});
$id=~tr/A-Z/a-z/;
my $esc_unam=&escape($uname);	my $esc_unam=&escape($uname);
if ($servers{$uhom}) {	if ($namespace eq 'ids') {
$servers{$uhom}.='&'.$id.'='.$esc_unam;	my $id=&escape($ids{$uname});
	$id=~tr/A-Z/a-z/;
	my $esc_unam=&escape($uname);
	$servers{$uhom}.=$id.'='.$esc_unam.'&';
} else {	} else {
$servers{$uhom}=$id.'='.$esc_unam;	my @currids = split(/,/,$ids{$uname});
	foreach my $id (@currids) {
	$byid{$uhom}{$id} .= $uname.',';
	}
	}
	}
	}
	if ($namespace eq 'clickers') {
	foreach my $server (keys(%byid)) {
	if (ref($byid{$server}) eq 'HASH') {
	foreach my $id (keys(%{$byid{$server}})) {
	$byid{$server} =~ s/,$//;
	$servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&';
	}
}	}
}	}
}	}
foreach my $server (keys(%servers)) {	foreach my $server (keys(%servers)) {
&critical('idput:'.$udom.':'.$servers{$server},$server);	$servers{$server} =~ s/\&$//;
	if ($namespace eq 'ids') {
	&critical('idput:'.$udom.':'.$servers{$server},$server);
	} else {
	&critical('updateclickers:'.$udom.':add:'.$servers{$server},$server);
	}
}	}
}	}

# ---------------------------------------- Delete unwanted IDs from ids.db file	# ------------- Delete unwanted student/employee IDs or clicker IDs from domain

sub iddel {	sub iddel {
my ($udom,$idshashref,$uhome)=@_;	my ($udom,$idshashref,$uhome,$namespace)=@_;
my %result=();	my %result=();
unless (ref($idshashref) eq 'HASH') {	my %ids=();
	my %byid = ();
	if (ref($idshashref) eq 'HASH') {
	%ids=%{$idshashref};
	} else {
return %result;	return %result;
}	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}
my %servers=();	my %servers=();
while (my ($id,$uname) = each(%{$idshashref})) {	while (my ($id,$unamestr) = each(%ids)) {
my $uhom;	if ($namespace eq 'ids') {
if ($uhome) {	my $uhom = $uhome;
$uhom = $uhome;	if ($uhom eq '') {
} else {	$uhom=&homeserver($unamestr,$udom);
$uhom=&homeserver($uname,$udom);	}
}	if ($uhom ne 'no_host') {
if ($uhom ne 'no_host') {
if ($servers{$uhom}) {
$servers{$uhom}.='&'.&escape($id);	$servers{$uhom}.='&'.&escape($id);
} else {	}
$servers{$uhom}=&escape($id);	} else {
	my @curritems = split(/,/,$ids{$id});
	foreach my $uname (@curritems) {
	my $uhom = $uhome;
	if ($uhom eq '') {
	$uhom=&homeserver($uname,$udom);
	}
	if ($uhom ne 'no_host') {
	$byid{$uhom}{$id} .= $uname.',';
	}
	}
	}
	}
	if ($namespace eq 'clickers') {
	foreach my $server (keys(%byid)) {
	if (ref($byid{$server}) eq 'HASH') {
	foreach my $id (keys(%{$byid{$server}})) {
	$byid{$server}{$id} =~ s/,$//;
	$servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&';
	}
}	}
}	}
}	}
foreach my $server (keys(%servers)) {	foreach my $server (keys(%servers)) {
$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);	$servers{$server} =~ s/\&$//;
	if ($namespace eq 'ids') {
	$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
	} elsif ($namespace eq 'clickers') {
	$result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server);
	}
}	}
return %result;	return %result;
}	}

	# ----- Update clicker ID-to-username look-ups in clickers.db on library server

	sub updateclickers {
	my ($udom,$action,$idshashref,$uhome,$critical) = @_;
	my %clickers;
	if (ref($idshashref) eq 'HASH') {
	%clickers=%{$idshashref};
	} else {
	return;
	}
	my $items='';
	foreach my $item (keys(%clickers)) {
	$items.=&escape($item).'='.&escape($clickers{$item}).'&';
	}
	$items=~s/\&$//;
	my $request = "updateclickers:$udom:$action:$items";
	if ($critical) {
	return &critical($request,$uhome);
	} else {
	return &reply($request,$uhome);
	}
	}

# ------------------------------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 1866 sub dump_dom {	Line 2147 sub dump_dom {
# ------------------------------------------ get items from domain db files	# ------------------------------------------ get items from domain db files

sub get_dom {	sub get_dom {
my ($namespace,$storearr,$udom,$uhome)=@_;	my ($namespace,$storearr,$udom,$uhome,$encrypt)=@_;
return if ($udom eq 'public');	return if ($udom eq 'public');
my $items='';	my $items='';
foreach my $item (@$storearr) {	foreach my $item (@$storearr) {
Line 1890 sub get_dom {	Line 2171 sub get_dom {
}	}
if ($udom && $uhome && ($uhome ne 'no_host')) {	if ($udom && $uhome && ($uhome ne 'no_host')) {
my $rep;	my $rep;
if ($namespace =~ /^enc/) {	if (grep { $_ eq $uhome } &current_machine_ids()) {
$rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);	# domain information is hosted on this machine
	$rep = &LONCAPA::Lond::get_dom("getdom:$udom:$namespace:$items");
} else {	} else {
$rep=&reply("getdom:$udom:$namespace:$items",$uhome);	if ($encrypt) {
	$rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
	} else {
	$rep=&reply("getdom:$udom:$namespace:$items",$uhome);
	}
}	}
my %returnhash;	my %returnhash;
if ($rep eq '' \|\| $rep =~ /^error: 2 /) {	if ($rep eq '' \|\| $rep =~ /^error: 2 /) {
Line 1917 sub get_dom {	Line 2203 sub get_dom {
# -------------------------------------------- put items in domain db files	# -------------------------------------------- put items in domain db files

sub put_dom {	sub put_dom {
my ($namespace,$storehash,$udom,$uhome)=@_;	my ($namespace,$storehash,$udom,$uhome,$encrypt)=@_;
if (!$udom) {	if (!$udom) {
$udom=$env{'user.domain'};	$udom=$env{'user.domain'};
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
Line 1938 sub put_dom {	Line 2224 sub put_dom {
$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';	$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
}	}
$items=~s/\&$//;	$items=~s/\&$//;
if ($namespace =~ /^enc/) {	if ($encrypt) {
return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);	return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);
} else {	} else {
return &reply("putdom:$udom:$namespace:$items",$uhome);	return &reply("putdom:$udom:$namespace:$items",$uhome);
Line 2036 sub inst_directory_query {	Line 2322 sub inst_directory_query {
unless ($homeserver eq $perlvar{'lonHostID'}) {	unless ($homeserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {	if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($udom,$homeserver);	my $lcrev = &get_server_loncaparev($udom,$homeserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);	my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|	if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|	(($major == 2) && ($minor < 12))) {
(($major == 2) && ($minor == 11) && ($subver < 3))) {
return;	return;
}	}
}	}
Line 2088 sub usersearch {	Line 2373 sub usersearch {
unless ($tryserver eq $perlvar{'lonHostID'}) {	unless ($tryserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {	if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($dom,$tryserver);	my $lcrev = &get_server_loncaparev($dom,$tryserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);	my ($major,$minor) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
next if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|	next if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|	(($major == 2) && ($minor < 12)));
(($major == 2) && ($minor == 11) && ($subver < 3)));
}	}
}	}
my $host=&hostname($tryserver);	my $host=&hostname($tryserver);
Line 2183 sub get_multiple_instusers {	Line 2467 sub get_multiple_instusers {
my ($udom,$users,$caller) = @_;	my ($udom,$users,$caller) = @_;
my ($outcome,$results);	my ($outcome,$results);
if (ref($users) eq 'HASH') {	if (ref($users) eq 'HASH') {
my $count = keys(%{$users});	my $count = keys(%{$users});
my $requested = &freeze_escape($users);	my $requested = &freeze_escape($users);
my $homeserver = &domain($udom,'primary');	my $homeserver = &domain($udom,'primary');
if ($homeserver ne '') {	if ($homeserver ne '') {
Line 2227 sub get_multiple_instusers {	Line 2511 sub get_multiple_instusers {
} else {	} else {
($outcome,my $userdata) = split(/=/,$response,2);	($outcome,my $userdata) = split(/=/,$response,2);
if ($outcome eq 'ok') {	if ($outcome eq 'ok') {
$results = &thaw_unescape($userdata);	$results = &thaw_unescape($userdata);
}	}
}	}
}	}
Line 2332 sub get_domain_defaults {	Line 2616 sub get_domain_defaults {
'requestcourses','inststatus',	'requestcourses','inststatus',
'coursedefaults','usersessions',	'coursedefaults','usersessions',
'requestauthor','selfenrollment',	'requestauthor','selfenrollment',
'coursecategories','autoenroll',	'coursecategories','ssl','autoenroll',
'helpsettings'],$domain);	'trust','helpsettings','wafproxy'],$domain);
my @coursetypes = ('official','unofficial','community','textbook');	my @coursetypes = ('official','unofficial','community','textbook','placement');
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'} = $domconfig{'defaults'}{'auth_def'};
Line 2367 sub get_domain_defaults {	Line 2651 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'requestcourses'}) eq 'HASH') {	if (ref($domconfig{'requestcourses'}) eq 'HASH') {
foreach my $item ('official','unofficial','community','textbook') {	foreach my $item ('official','unofficial','community','textbook','placement') {
$domdefaults{$item} = $domconfig{'requestcourses'}{$item};	$domdefaults{$item} = $domconfig{'requestcourses'}{$item};
}	}
}	}
Line 2380 sub get_domain_defaults {	Line 2664 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'coursedefaults'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
	$domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};	$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};	$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
Line 2396 sub get_domain_defaults {	Line 2681 sub get_domain_defaults {
}	}
if ($domdefaults{'postsubmit'} eq 'on') {	if ($domdefaults{'postsubmit'} eq 'on') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
$domdefaults{$type.'postsubtimeout'} =	$domdefaults{$type.'postsubtimeout'} =
$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};	$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
}	}
}	}
}	}
Line 2413 sub get_domain_defaults {	Line 2698 sub get_domain_defaults {
}	}
if ($domconfig{'coursedefaults'}{'texengine'}) {	if ($domconfig{'coursedefaults'}{'texengine'}) {
$domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};	$domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
}	}
}	}
if (ref($domconfig{'usersessions'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}) eq 'HASH') {
if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
Line 2425 sub get_domain_defaults {	Line 2710 sub get_domain_defaults {
if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
$domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};	$domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
}	}
	if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') {
	$domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'};
	}
}	}
if (ref($domconfig{'selfenrollment'}) eq 'HASH') {	if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {	if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
Line 2464 sub get_domain_defaults {	Line 2752 sub get_domain_defaults {
$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};	$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
}	}
}	}
	if (ref($domconfig{'ssl'}) eq 'HASH') {
	if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') {
	$domdefaults{'replication'} = $domconfig{'ssl'}{'replication'};
	}
	if (ref($domconfig{'ssl'}{'connto'}) eq 'HASH') {
	$domdefaults{'connect'} = $domconfig{'ssl'}{'connto'};
	}
	if (ref($domconfig{'ssl'}{'connfrom'}) eq 'HASH') {
	$domdefaults{'connect'} = $domconfig{'ssl'}{'connfrom'};
	}
	}
	if (ref($domconfig{'trust'}) eq 'HASH') {
	my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg);
	foreach my $prefix (@prefixes) {
	if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') {
	$domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix};
	}
	}
	}
if (ref($domconfig{'autoenroll'}) eq 'HASH') {	if (ref($domconfig{'autoenroll'}) eq 'HASH') {
$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};	$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
}	}
Line 2473 sub get_domain_defaults {	Line 2780 sub get_domain_defaults {
$domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};	$domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
}	}
}	}
	if (ref($domconfig{'wafproxy'}) eq 'HASH') {
	foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') {
	if ($domconfig{'wafproxy'}{$item}) {
	$domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item};
	}
	}
	}
&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
}	}
Line 2536 sub retrieve_instcodes {	Line 2850 sub retrieve_instcodes {
return $totcodes;	return $totcodes;
}	}

	sub course_portal_url {
	my ($cnum,$cdom,$r) = @_;
	my $chome = &homeserver($cnum,$cdom);
	my $hostname = &hostname($chome);
	my $protocol = $protocol{$chome};
	$protocol = 'http' if ($protocol ne 'https');
	my %domdefaults = &get_domain_defaults($cdom);
	my $firsturl;
	if ($domdefaults{'portal_def'}) {
	$firsturl = $domdefaults{'portal_def'};
	} else {
	my $alias = &Apache::lonnet::use_proxy_alias($r,$chome);
	$hostname = $alias if ($alias ne '');
	$firsturl = $protocol.'://'.$hostname;
	}
	return $firsturl;
	}

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

sub get_passwdconf {	sub get_passwdconf {
Line 2559 sub get_passwdconf {	Line 2891 sub get_passwdconf {
return %passwdconf;	return %passwdconf;
}	}

sub course_portal_url {
my ($cnum,$cdom) = @_;
my $chome = &homeserver($cnum,$cdom);
my $hostname = &hostname($chome);
my $protocol = $protocol{$chome};
$protocol = 'http' if ($protocol ne 'https');
my %domdefaults = &get_domain_defaults($cdom);
my $firsturl;
if ($domdefaults{'portal_def'}) {
$firsturl = $domdefaults{'portal_def'};
} else {
$firsturl = $protocol.'://'.$hostname;
}
return $firsturl;
}

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

sub assign_access_key {	sub assign_access_key {
Line 2820 sub devalidate_cache_new {	Line 3136 sub devalidate_cache_new {

sub is_cached_new {	sub is_cached_new {
my ($name,$id,$debug) = @_;	my ($name,$id,$debug) = @_;
my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) for	my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible
# keys in %remembered hash, which persists for
# duration of request (no restriction on key length).
if (exists($remembered{$remembered_id})) {	if (exists($remembered{$remembered_id})) {
if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }	if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
$accessed{$remembered_id}=[&gettimeofday()];	$accessed{$remembered_id}=[&gettimeofday()];
Line 3084 sub repcopy {	Line 3398 sub repcopy {
mkdir($path,0777);	mkdir($path,0777);
}	}
}	}
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");	my $request=new HTTP::Request('GET',"$remoteurl");
my $response=$ua->request($request,$transname);	my $response;
	if ($remoteurl =~ m{/raw/}) {
	$response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',0,1);
	} else {
	$response=&LONCAPA::LWPReq::makerequest($home,$request,$transname,\%perlvar,'',1);
	}
if ($response->is_error()) {	if ($response->is_error()) {
unlink($transname);	unlink($transname);
my $message=$response->status_line;	my $message=$response->status_line;
Line 3096 sub repcopy {	Line 3414 sub repcopy {
} else {	} else {
if ($remoteurl!~/\.meta$/) {	if ($remoteurl!~/\.meta$/) {
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');	my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
my $mresponse=$ua->request($mrequest,$filename.'.meta');	my $mresponse;
	if ($remoteurl =~ m{/raw/}) {
	$mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',0,1);
	} else {
	$mresponse = &LONCAPA::LWPReq::makerequest($home,$mrequest,$filename.'.meta',\%perlvar,'',1);
	}
if ($mresponse->is_error()) {	if ($mresponse->is_error()) {
unlink($filename.'.meta');	unlink($filename.'.meta');
&logthis(	&logthis(
Line 3126 sub unsubscribe {	Line 3449 sub unsubscribe {
} elsif (grep { $_ eq $home } &current_machine_ids()) {	} elsif (grep { $_ eq $home } &current_machine_ids()) {
$answer = 'home';	$answer = 'home';
} else {	} else {
$answer = reply("unsub:$fname",$home);	my $defdom = $perlvar{'lonDefDomain'};
	if (&will_trust('content',$defdom,$udom)) {
	$answer = reply("unsub:$fname",$home);
	} else {
	$answer = 'untrusted';
	}
}	}
return $answer;	return $answer;
}	}
Line 3159 sub ssi_body {	Line 3487 sub ssi_body {
# --------------------------------------------------------- Server Side Include	# --------------------------------------------------------- Server Side Include

sub absolute_url {	sub absolute_url {
my ($host_name) = @_;	my ($host_name,$unalias,$keep_proto) = @_;
my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');	my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
if ($host_name eq '') {	if ($host_name eq '') {
$host_name = $ENV{'SERVER_NAME'};	$host_name = $ENV{'SERVER_NAME'};
}	}
	if ($unalias) {
	my $alias = &get_proxy_alias();
	if ($alias eq $host_name) {
	my $lonhost = $perlvar{'lonHostID'};
	my $hostname = &hostname($lonhost);
	my $lcproto;
	if (($keep_proto) \|\| ($hostname eq '')) {
	$lcproto = $protocol;
	} else {
	$lcproto = $protocol{$lonhost};
	$lcproto = 'http' if ($lcproto ne 'https');
	$lcproto .= '://';
	}
	unless ($hostname eq '') {
	return $lcproto.$hostname;
	}
	}
	}
return $protocol.$host_name;	return $protocol.$host_name;
}	}

Line 3180 sub absolute_url {	Line 3526 sub absolute_url {
sub ssi {	sub ssi {

my ($fn,%form)=@_;	my ($fn,%form)=@_;
my ($request,$response);	my ($host,$request,$response);
	$host = &absolute_url('',1);

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

$request->header(Cookie => $ENV{'HTTP_COOKIE'});	$request->header(Cookie => $ENV{'HTTP_COOKIE'});
	my $lonhost = $perlvar{'lonHostID'};
	my $islocal;
if (($env{'request.course.id'}) &&	if (($env{'request.course.id'}) &&
($form{'grade_courseid'} eq $env{'request.course.id'}) &&	($form{'grade_courseid'} eq $env{'request.course.id'}) &&
($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&	($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
($form{'grade_symb'} ne '') &&	($form{'grade_symb'} ne '') &&
(&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.	(&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {	($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
if (LWP::UserAgent->VERSION >= 5.834) {	$islocal = 1;
my $ua=new LWP::UserAgent;
$ua->local_address('127.0.0.1');
$response = $ua->request($request);
} else {
{
require LWP::Protocol::http;
local @LWP::Protocol::http::EXTRA_SOCK_OPTS = (LocalAddr => '127.0.0.1');
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
@LWP::Protocol::http::EXTRA_SOCK_OPTS = ();
}
}
} else {
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
}	}
	$response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,
	'','','',$islocal);

if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($response->content, $response);
} else {	} else {
Line 3230 sub ssi {	Line 3566 sub ssi {

sub externalssi {	sub externalssi {
my ($url)=@_;	my ($url)=@_;
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',$url);	my $request=new HTTP::Request('GET',$url);
my $response=$ua->request($request);	my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar);
if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($response->content, $response);
} else {	} else {
Line 3240 sub externalssi {	Line 3575 sub externalssi {
}	}
}	}

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

Line 3261 sub remove_stale_resfile {	Line 3597 sub remove_stale_resfile {
if ($hostname) {	if ($hostname) {
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
my $uri = $protocol.'://'.$hostname.'/raw/'.&declutter($url);	my $uri = &declutter($url);
my $ua=new LWP::UserAgent;	my $request=new HTTP::Request('HEAD',$protocol.'://'.$hostname.'/raw/'.$uri);
$ua->timeout(5);	my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,5,0,1);
my $request=new HTTP::Request('HEAD',$uri);
my $response=$ua->request($request);
if ($response->is_success()) {	if ($response->is_success()) {
my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );	my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
my $locmodtime = (stat($fname))[9];	my $locmodtime = (stat($fname))[9];
Line 3328 sub allowuploaded {	Line 3662 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 3336 sub allowuploaded {	Line 3670 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 3430 sub can_edit_resource {	Line 3764 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 ($env{'form.forceedit'}) {
Line 3481 sub can_edit_resource {	Line 3815 sub can_edit_resource {
}	}
} elsif ($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 3541 sub can_edit_resource {	Line 3875 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$/,@ids)) {
Line 3568 sub in_course {	Line 3902 sub in_course {
if ($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 3764 sub clean_filename {	Line 4098 sub clean_filename {
# Replace all .\d. sequences with _\d. so they no longer look like version	# Replace all .\d. sequences with _\d. so they no longer look like version
# numbers	# numbers
$fname=~s/\.(\d+)(?=\.)/_$1/g;	$fname=~s/\.(\d+)(?=\.)/_$1/g;
	# Replace three or more adjacent underscores with one for consistency
	# with loncfile::filename_check() so complete url can be extracted by
	# lonnet::decode_symb()
	$fname=~s/_{3,}/_/g;
return $fname;	return $fname;
}	}

Line 3809 sub resizeImage {	Line 4147 sub resizeImage {
# input: $formname - the contents of the file are in $env{"form.$formname"}	# input: $formname - the contents of the file are in $env{"form.$formname"}
# the desired filename is in $env{"form.$formname.filename"}	# the desired filename is in $env{"form.$formname.filename"}
# $context - possible values: coursedoc, existingfile, overwrite,	# $context - possible values: coursedoc, existingfile, overwrite,
# canceloverwrite, scantron or ''.	# canceloverwrite, scantron or ''.
# if 'coursedoc': upload to the current course	# if 'coursedoc': upload to the current course
# if 'existingfile': write file to tmp/overwrites directory	# if 'existingfile': write file to tmp/overwrites directory
# if 'canceloverwrite': delete file written to tmp/overwrites directory	# if 'canceloverwrite': delete file written to tmp/overwrites directory
Line 3817 sub resizeImage {	Line 4155 sub resizeImage {
# $subdir - directory in userfile to store the file into	# $subdir - directory in userfile to store the file into
# $parser - instruction to parse file for objects ($parser = parse) or	# $parser - instruction to parse file for objects ($parser = parse) or
# if context is 'scantron', $parser is hashref of csv column mapping	# if context is 'scantron', $parser is hashref of csv column mapping
# (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,	# (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
# Section => 4, CODE => 5, FirstQuestion => 9 }).	# Section => 4, CODE => 5, FirstQuestion => 9 }).
# $allfiles - reference to hash for embedded objects	# $allfiles - reference to hash for embedded objects
# $codebase - reference to hash for codebase of java objects	# $codebase - reference to hash for codebase of java objects
Line 3867 sub userfileupload {	Line 4205 sub userfileupload {
} else {	} else {
$docudom = $env{'user.domain'};	$docudom = $env{'user.domain'};
}	}
if ($destuname =~ /^$match_username$/) {	if ($destuname =~ /^$match_username$/) {
$docuname = $destuname;	$docuname = $destuname;
} else {	} else {
$docuname = $env{'user.name'};	$docuname = $env{'user.name'};
Line 4093 sub extract_embedded_items {	Line 4431 sub extract_embedded_items {
}	}
if (lc($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($tagname) eq 'script') {
Line 4274 sub bubblesheet_converter {	Line 4612 sub bubblesheet_converter {
($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&	($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
(-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {	(-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
my (%csvcols,%csvoptions);	my (%csvcols,%csvoptions);
if (ref($config->{'fields'}) eq 'HASH') {	if (ref($config->{'fields'}) eq 'HASH') {
%csvcols = %{$config->{'fields'}};	%csvcols = %{$config->{'fields'}};
}	}
if (ref($config->{'options'}) eq 'HASH') {	if (ref($config->{'options'}) eq 'HASH') {
Line 4673 sub flushcourselogs {	Line 5011 sub flushcourselogs {
delete $domainrolehash{$entry};	delete $domainrolehash{$entry};
}	}
foreach my $dom (keys(%domrolebuffer)) {	foreach my $dom (keys(%domrolebuffer)) {
my %servers;	my %servers;
if (defined(&domain($dom,'primary'))) {	if (defined(&domain($dom,'primary'))) {
my $primary=&domain($dom,'primary');	my $primary=&domain($dom,'primary');
my $hostname=&hostname($primary);	my $hostname=&hostname($primary);
$servers{$primary} = $hostname;	$servers{$primary} = $hostname;
} else {	} else {
%servers = &get_servers($dom,'library');	%servers = &get_servers($dom,'library');
}	}
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
if (&reply('domroleput:'.$dom.':'.	if (&reply('domroleput:'.$dom.':'.
$domrolebuffer{$dom},$tryserver) eq 'ok') {	$domrolebuffer{$dom},$tryserver) eq 'ok') {
last;	last;
} else {	} else {
&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);	&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
}	}
}	}
Line 5017 sub get_my_roles {	Line 5355 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 5314 sub courseiddump {	Line 5652 sub courseiddump {
if (($domfilter eq '') \|\|	if (($domfilter eq '') \|\|
(&host_domain($tryserver) eq $domfilter)) {	(&host_domain($tryserver) eq $domfilter)) {
my $rep;	my $rep;
if (grep { $_ eq $tryserver } &current_machine_ids()) {	if (grep { $_ eq $tryserver } current_machine_ids()) {
$rep = &LONCAPA::Lond::dump_course_id_handler(	$rep = LONCAPA::Lond::dump_course_id_handler(
join(":", (&host_domain($tryserver), $sincefilter,	join(":", (&host_domain($tryserver), $sincefilter,
&escape($descfilter), &escape($instcodefilter),	&escape($descfilter), &escape($instcodefilter),
&escape($ownerfilter), &escape($coursefilter),	&escape($ownerfilter), &escape($coursefilter),
&escape($typefilter), &escape($regexp_ok),	&escape($typefilter), &escape($regexp_ok),
$as_hash, &escape($selfenrollonly),	$as_hash, &escape($selfenrollonly),
&escape($catfilter), $showhidden, $caller,	&escape($catfilter), $showhidden, $caller,
&escape($cloner), &escape($cc_clone), $cloneonly,	&escape($cloner), &escape($cc_clone), $cloneonly,
&escape($createdbefore), &escape($createdafter),	&escape($createdbefore), &escape($createdafter),
&escape($creationcontext),$domcloner,$hasuniquecode,	&escape($creationcontext),$domcloner,$hasuniquecode,
$reqcrsdom,&escape($reqinstcode))));	$reqcrsdom,&escape($reqinstcode))));
} else {	} else {
Line 5339 sub courseiddump {	Line 5677 sub courseiddump {
&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.	&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);	':'.$reqcrsdom.':'.&escape($reqinstcode),$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 5566 sub set_first_access {	Line 5904 sub set_first_access {
}	}
}	}

sub checkout {
my ($symb,$tuname,$tudom,$tcrsid)=@_;
my $now=time;
my $lonhost=$perlvar{'lonHostID'};
my $ip = &get_requestor_ip();
my $infostr=&escape(
'CHECKOUTTOKEN&'.
$tuname.'&'.
$tudom.'&'.
$tcrsid.'&'.
$symb.'&'.
$now.'&'.$ip);
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' => $ip);

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 $ip = &get_requestor_ip();
my ($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' => $ip);

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 5907 sub tmpreset {	Line 6158 sub tmpreset {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=$ENV{'REMOTE_ADDR'};	$stuname=&get_requestor_ip();
}	}
my $path=LONCAPA::tempdir();	my $path=LONCAPA::tempdir();
my %hash;	my %hash;
Line 5944 sub tmpstore {	Line 6195 sub tmpstore {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=$ENV{'REMOTE_ADDR'};	$stuname=&get_requestor_ip();
}	}
my $now=time;	my $now=time;
my %hash;	my %hash;
Line 5988 sub tmprestore {	Line 6239 sub tmprestore {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=$ENV{'REMOTE_ADDR'};	$stuname=&get_requestor_ip();
}	}
my %returnhash;	my %returnhash;
$namespace=~s/\//\_/g;	$namespace=~s/\//\_/g;
Line 6044 sub store {	Line 6295 sub store {
}	}
if (!$home) { $home=$env{'user.home'}; }	if (!$home) { $home=$env{'user.home'}; }

$$storehash{'ip'}=$ENV{'REMOTE_ADDR'};	$$storehash{'ip'}=&get_requestor_ip();
$$storehash{'host'}=$perlvar{'lonHostID'};	$$storehash{'host'}=$perlvar{'lonHostID'};

my $namevalue='';	my $namevalue='';
Line 6080 sub cstore {	Line 6331 sub cstore {
}	}
if (!$home) { $home=$env{'user.home'}; }	if (!$home) { $home=$env{'user.home'}; }

$$storehash{'ip'}=$ENV{'REMOTE_ADDR'};	$$storehash{'ip'}=&get_requestor_ip();
$$storehash{'host'}=$perlvar{'lonHostID'};	$$storehash{'host'}=$perlvar{'lonHostID'};

my $namevalue='';	my $namevalue='';
Line 6246 sub privileged {	Line 6497 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 6273 sub privileged {	Line 6524 sub privileged {
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 > $now);
}	}
}	}
Line 6311 sub privileged_by_domain {	Line 6562 sub privileged_by_domain {
my ($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 6744 sub check_adhoc_privs {	Line 6995 sub check_adhoc_privs {
my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;	my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
if ($sec) {	if ($sec) {
$cckey .= '/'.$sec;	$cckey .= '/'.$sec;
}	}
my $setprivs;	my $setprivs;
if ($env{$cckey}) {	if ($env{$cckey}) {
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);	my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
Line 6786 sub set_adhoc_privileges {	Line 7037 sub set_adhoc_privileges {
my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);	my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
&appenv(\%userroles,[$role,'cm']);	&appenv(\%userroles,[$role,'cm']);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);
unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {	unless (($caller eq 'constructaccess' && $env{'request.course.id'}) \|\|
	($caller eq 'tiny')) {
&appenv( {'request.role' => $spec,	&appenv( {'request.role' => $spec,
'request.role.domain' => $dcdom,	'request.role.domain' => $dcdom,
'request.course.sec' => $sec,	'request.course.sec' => $sec,
}	}
);	);
my $tadv=0;	my $tadv=0;
Line 6849 sub unserialize {	Line 7101 sub unserialize {
return {} if $rep =~ /^error/;	return {} if $rep =~ /^error/;

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

# see Lond::dump_with_regexp	# see Lond::dump_with_regexp
# if $escapedkeys hash keys won't get unescaped.	# if $escapedkeys hash keys won't get unescaped.
sub dump {	sub dump {
my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;	my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys,$encrypt)=@_;
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 6871 sub dump {	Line 7124 sub dump {
} else {	} else {
$regexp='.';	$regexp='.';
}	}
if (grep { $_ eq $uhome } &current_machine_ids()) {	if (grep { $_ eq $uhome } current_machine_ids()) {
# user is hosted on this machine	# user is hosted on this machine
my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,	my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});	$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
return %{&unserialize($reply, $escapedkeys)};	return %{unserialize($reply, $escapedkeys)};
	}
	my $rep;
	if ($encrypt) {
	$rep=&reply("encrypt:edump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
	} else {
	$rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
}	}
my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
my @pairs=split(/\&/,$rep);	my @pairs=split(/\&/,$rep);
my %returnhash=();	my %returnhash=();
if (!($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 6927 sub currentdump {	Line 7186 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 7023 sub inc {	Line 7282 sub inc {
# --------------------------------------------------------------- put interface	# --------------------------------------------------------------- put interface

sub put {	sub put {
my ($namespace,$storehash,$udomain,$uname)=@_;	my ($namespace,$storehash,$udomain,$uname,$encrypt)=@_;
if (!$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 7032 sub put {	Line 7291 sub put {
$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';	$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
}	}
$items=~s/\&$//;	$items=~s/\&$//;
return &reply("put:$udomain:$uname:$namespace:$items",$uhome);	if ($encrypt) {
	return &reply("encrypt:put:$udomain:$uname:$namespace:$items",$uhome);
	} else {
	return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
	}
}	}

# ------------------------------------------------------------ newput interface	# ------------------------------------------------------------ newput interface
Line 7189 sub tmpdel {	Line 7452 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 7209 sub get_timebased_id {	Line 7472 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 7364 sub get_portfolio_access {	Line 7627 sub get_portfolio_access {
if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {	if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {	if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
$allowed = 1;	$allowed = 1;
last;	last;
}	}
}	}
}	}
Line 7558 sub usertools_access {	Line 7821 sub usertools_access {
unofficial => 1,	unofficial => 1,
community => 1,	community => 1,
textbook => 1,	textbook => 1,
	placement => 1,
	lti => 1,
);	);
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
%tools = (	%tools = (
Line 7592 sub usertools_access {	Line 7857 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 7754 sub is_advanced_user {	Line 8019 sub is_advanced_user {
}	}

sub check_can_request {	sub check_can_request {
my ($dom,$can_request,$request_domains) = @_;	my ($dom,$can_request,$request_domains,$uname,$udom) = @_;
my $canreq = 0;	my $canreq = 0;
	if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '')) {
	$uname = $env{'user.name'};
	$udom = $env{'user.domain'};
	}
my ($types,$typename) = &Apache::loncommon::course_types();	my ($types,$typename) = &Apache::loncommon::course_types();
my @options = ('approval','validate','autolimit');	my @options = ('approval','validate','autolimit');
my $optregex = join('\|',@options);	my $optregex = join('\|',@options);
if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {	if ((ref($can_request) eq 'HASH') && (ref($types) eq 'ARRAY')) {
foreach my $type (@{$types}) {	foreach my $type (@{$types}) {
if (&usertools_access($env{'user.name'},	if (&usertools_access($uname,$udom,$type,undef,
$env{'user.domain'},	'requestcourses')) {
$type,undef,'requestcourses')) {
$canreq ++;	$canreq ++;
if (ref($request_domains) eq 'HASH') {	if (ref($request_domains) eq 'HASH') {
push(@{$request_domains->{$type}},$env{'user.domain'});	push(@{$request_domains->{$type}},$udom);
}	}
if ($dom eq $env{'user.domain'}) {	if ($dom eq $udom) {
$can_request->{$type} = 1;	$can_request->{$type} = 1;
}	}
}	}
if ($env{'environment.reqcrsotherdom.'.$type} ne '') {	if (($env{'user.name'} ne '') && ($env{'user.domain'} ne '') &&
	($env{'environment.reqcrsotherdom.'.$type} ne '')) {
my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});	my @curr = split(',',$env{'environment.reqcrsotherdom.'.$type});
if (@curr > 0) {	if (@curr > 0) {
foreach my $item (@curr) {	foreach my $item (@curr) {
Line 7789 sub check_can_request {	Line 8058 sub check_can_request {
}	}
}	}
}	}
unless($dom eq $env{'user.domain'}) {	unless ($dom eq $env{'user.domain'}) {
$canreq ++;	$canreq ++;
if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {	if (grep(/^\Q$dom\E:($optregex)(=?\d*)$/,@curr)) {
$can_request->{$type} = 1;	$can_request->{$type} = 1;
Line 7854 sub customaccess {	Line 8123 sub customaccess {
# ------------------------------------------------- Check for a user privilege	# ------------------------------------------------- Check for a user privilege

sub allowed {	sub allowed {
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_;	my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache,$nodeeplinkcheck,$nodeeplinkout)=@_;
my $ver_orguri=$uri;	my $ver_orguri=$uri;
$uri=&deversion($uri);	$uri=&deversion($uri);
my $orguri=$uri;	my $orguri=$uri;
Line 7919 sub allowed {	Line 8188 sub allowed {
# Free bre to public access	# Free bre to public access

if ($priv eq 'bre') {	if ($priv eq 'bre') {
my $copyright=&metadata($uri,'copyright');	my $copyright;
	unless ($uri =~ /ext\.tool/) {
	$copyright=&metadata($uri,'copyright');
	}
if (($copyright eq 'public') && (!$env{'request.course.id'})) {	if (($copyright eq 'public') && (!$env{'request.course.id'})) {
return 'F';	return 'F';
}	}
Line 7977 sub allowed {	Line 8249 sub allowed {
my $adom = $1;	my $adom = $1;
foreach my $key (keys(%env)) {	foreach my $key (keys(%env)) {
if ($key =~ m{^user\.role\.(ca\|aa)/\Q$adom\E}) {	if ($key =~ m{^user\.role\.(ca\|aa)/\Q$adom\E}) {
my ($start,$end) = split('.',$env{$key});	my ($start,$end) = split(/\./,$env{$key});
if (($now >= $start) && (!$end \|\| $end < $now)) {	if (($now >= $start) && (!$end \|\| $end > $now)) {
$ownaccess = 1;	$ownaccess = 1;
last;	last;
}	}
Line 7990 sub allowed {	Line 8262 sub allowed {
foreach my $role ('ca','aa') {	foreach my $role ('ca','aa') {
if ($env{"user.role.$role./$adom/$aname"}) {	if ($env{"user.role.$role./$adom/$aname"}) {
my ($start,$end) =	my ($start,$end) =
split('.',$env{"user.role.$role./$adom/$aname"});	split(/\./,$env{"user.role.$role./$adom/$aname"});
if (($now >= $start) && (!$end \|\| $end < $now)) {	if (($now >= $start) && (!$end \|\| $end > $now)) {
$ownaccess = 1;	$ownaccess = 1;
last;	last;
}	}
Line 8076 sub allowed {	Line 8348 sub allowed {
if ($env{'user.priv.'.$env{'request.role'}.'./'}	if ($env{'user.priv.'.$env{'request.role'}.'./'}
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($noblockcheck) {	my $deeplinkblock;
	unless ($nodeeplinkcheck) {
	$deeplinkblock = &deeplink_check($priv,$symb,$uri);
	}
	if ($deeplinkblock) {
	$thisallowed='D';
	} elsif ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
Line 8096 sub allowed {	Line 8374 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 $deeplinkblock;
	unless ($nodeeplinkcheck) {
	$deeplinkblock = &deeplink_check($priv,$symb,$refuri);
	}
	if ($deeplinkblock) {
	$thisallowed='D';
	} elsif ($noblockcheck) {
$thisallowed='F';	$thisallowed='F';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
Line 8169 sub allowed {	Line 8453 sub allowed {
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($priv eq 'bre') {	if ($priv eq 'bre') {
if ($noblockcheck) {	my $deeplinkblock;
	unless ($nodeeplinkcheck) {
	$deeplinkblock = &deeplink_check($priv,$symb,$uri);
	}
	if ($deeplinkblock) {
	$thisallowed = 'D';
	} elsif ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);
Line 8211 sub allowed {	Line 8501 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 $deeplinkblock;
	unless ($nodeeplinkcheck) {
	$deeplinkblock = &deeplink_check($priv,$symb,$refuri);
	}
	if ($deeplinkblock) {
	$thisallowed = 'D';
	} elsif ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);
Line 8256 sub allowed {	Line 8552 sub allowed {
#	#

# Possibly locked functionality, check all courses	# Possibly locked functionality, check all courses
	# In roles.tab, L (unless locked) available for bre, pch, plc, pac and sma.
# Locks might take effect only after 10 minutes cache expiration for other	# Locks might take effect only after 10 minutes cache expiration for other
# courses, and 2 minutes for current course	# courses, and 2 minutes for current course, in which user has st or ta role
	# which is neither expired nor a future role (unless current course).

my $envkey;	my ($needlockcheck,$now,$crsonly);
if ($thisallowed=~/L/) {	if ($thisallowed=~/L/) {
foreach $envkey (keys(%env)) {	$now = time;
	if ($priv eq 'bre') {
	if ($uri ne '') {
	if ($orguri =~ m{^/+res/}) {
	if ($uri =~ m{^lib/templates/}) {
	if ($env{'request.course.id'}) {
	$crsonly = 1;
	$needlockcheck = 1;
	}
	} else {
	$needlockcheck = 1;
	}
	} elsif ($env{'request.course.id'}) {
	my ($crsdom,$crsnum) = split('_',$env{'request.course.id'});
	if (($uri =~ m{^(adm\|uploaded\|public)/$crsdom/$crsnum/}) \|\|
	($uri =~ m{^adm/$match_domain/$match_username/\d+/(smppg\|bulletinboard)$})) {
	$crsonly = 1;
	}
	$needlockcheck = 1;
	}
	}
	} elsif (($priv eq 'pch') \|\| ($priv eq 'plc') \|\| ($priv eq 'pac') \|\| ($priv eq 'sma')) {
	$needlockcheck = 1;
	}
	}
	if ($needlockcheck) {
	foreach my $envkey (keys(%env)) {
if ($envkey=~/^user\.role\.(st\|ta)\.([^\.]*)/) {	if ($envkey=~/^user\.role\.(st\|ta)\.([^\.]*)/) {
my $courseid=$2;	my $courseid=$2;
my $roleid=$1.'.'.$2;	my $roleid=$1.'.'.$2;
$courseid=~s/^\///;	$courseid=~s/^\///;
	unless ($env{'request.role'} eq $roleid) {
	my ($start,$end) = split(/\./,$env{$envkey});
	next unless (($now >= $start) && (!$end \|\| $end > $now));
	}
my $expiretime=600;	my $expiretime=600;
if ($env{'request.role'} eq $roleid) {	if ($env{'request.role'} eq $roleid) {
$expiretime=120;	$expiretime=120;
Line 8288 sub allowed {	Line 8616 sub allowed {
}	}
if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)	if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
\|\| ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {	\|\| ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
if ($env{'priv.'.$priv.'.lock.expire'}>time) {	if ($env{$prefix.'priv.'.$priv.'.lock.expire'}>time) {
&log($env{'user.domain'},$env{'user.name'},	&log($env{'user.domain'},$env{'user.name'},
$env{'user.home'},	$env{'user.home'},
'Locked by priv: '.$priv.' for '.$uri.' due to '.	'Locked by priv: '.$priv.' for '.$uri.' due to '.
Line 8327 sub allowed {	Line 8655 sub allowed {
my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};	my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}	if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
=~/\Q$rolecode\E/) {	=~/\Q$rolecode\E/) {
if (($priv ne 'pch') && ($priv ne 'plc')) {	if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.	&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.	'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
$env{'request.course.id'});	$env{'request.course.id'});
Line 8337 sub allowed {	Line 8665 sub allowed {

if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}	if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
=~/\Q$unamedom\E/) {	=~/\Q$unamedom\E/) {
if (($priv ne 'pch') && ($priv ne 'plc')) {	if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.	&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.	'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
$env{'request.course.id'});	$env{'request.course.id'});
Line 8359 sub allowed {	Line 8687 sub allowed {
}	}
}	}

	# Restricted for deeplinked session?

	if ($env{'request.deeplink.login'}) {
	if ($env{'acc.deeplinkout'} && !$nodeeplinkout) {
	if (!$symb) { $symb=&symbread($uri,1); }
	if (($symb) && ($env{'acc.deeplinkout'}=~/\&\Q$symb\E\&/)) {
	return '';
	}
	}
	}

# Restricted by state or randomout?	# Restricted by state or randomout?

if ($thisallowed=~/X/) {	if ($thisallowed=~/X/) {
Line 8379 sub allowed {	Line 8718 sub allowed {
return 'A';	return 'A';
} elsif ($thisallowed eq 'B') {	} elsif ($thisallowed eq 'B') {
return 'B';	return 'B';
	} elsif ($thisallowed eq 'D') {
	return 'D';
}	}
return 'F';	return 'F';
}	}
Line 8395 sub constructaccess {	Line 8736 sub constructaccess {
my ($ownername,$ownerdomain,$ownerhome);	my ($ownername,$ownerdomain,$ownerhome);

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

# The URL does not really point to any authorspace, forget it	# The URL does not really point to any authorspace, forget it
unless (($ownername) && ($ownerdomain)) { return ''; }	unless (($ownername) && ($ownerdomain)) { return ''; }
Line 8416 sub constructaccess {	Line 8757 sub constructaccess {
$ownerhome = &homeserver($ownername,$ownerdomain);	$ownerhome = &homeserver($ownername,$ownerdomain);
return ($ownername,$ownerdomain,$ownerhome);	return ($ownername,$ownerdomain,$ownerhome);
}	}
	if ($env{'request.course.id'}) {
	if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
	($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
	if (&allowed('mdc',$env{'request.course.id'})) {
	$ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
	return ($ownername,$ownerdomain,$ownerhome);
	}
	}
	}
}	}

# We don't have any access right now. If we are not possibly going to do anything about this,	# We don't have any access right now. If we are not possibly going to do anything about this,
Line 8460 sub constructaccess {	Line 8810 sub constructaccess {
my $cacheduser='';	my $cacheduser='';
# Course for which data are being temporarily cached.	# Course for which data are being temporarily cached.
my $cachedcid='';	my $cachedcid='';
# Cached blockers for this user (a hash of blocking items).	# Cached blockers for this user (a hash of blocking items).
my %cachedblockers=();	my %cachedblockers=();
# When the data were last cached.	# When the data were last cached.
my $cachedlast='';	my $cachedlast='';

sub load_all_blockers {	sub load_all_blockers {
my ($uname,$udom)=@_;	my ($uname,$udom)=@_;
if (($uname ne '') && ($udom ne '')) {	if (($uname ne '') && ($udom ne '')) {
if (($cacheduser eq $uname.':'.$udom) &&	if (($cacheduser eq $uname.':'.$udom) &&
($cachedcid eq $env{'request.course.id'}) &&	($cachedcid eq $env{'request.course.id'}) &&
(abs($cachedlast-time)<5)) {	(abs($cachedlast-time)<5)) {
Line 8512 sub get_commblock_resources {	Line 8862 sub get_commblock_resources {
} else {	} else {
%commblocks = &get_comm_blocks();	%commblocks = &get_comm_blocks();
}	}
return %blockers unless (keys(%commblocks) > 0);	return %blockers unless (keys(%commblocks) > 0);
my $navmap = Apache::lonnavmaps::navmap->new();	my $navmap = Apache::lonnavmaps::navmap->new();
return %blockers unless (ref($navmap));	return %blockers unless (ref($navmap));
my $now = time;	my $now = time;
Line 8524 sub get_commblock_resources {	Line 8874 sub get_commblock_resources {
if (ref($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{$block}{'blocks'}{'docs'}{'maps'}})) {	if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};	$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
}	}
}	}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
Line 8549 sub get_commblock_resources {	Line 8899 sub get_commblock_resources {
if ($item =~ /___\d+___/) {	if ($item =~ /___\d+___/) {
$type = 'resource';	$type = 'resource';
@interval=&EXT("resource.0.interval",$item);	@interval=&EXT("resource.0.interval",$item);
if (ref($navmap)) {	if (ref($navmap)) {
my $res = $navmap->getBySymb($item);	my $res = $navmap->getBySymb($item);
push(@to_test,$res);	push(@to_test,$res);
}	}
} else {	} else {
Line 8645 sub has_comm_blocking {	Line 8995 sub has_comm_blocking {
}	}
if ($symb) {	if ($symb) {
@symbs = ($symb);	@symbs = ($symb);
} elsif (keys(%possibles)) {	} elsif (keys(%possibles)) {
@symbs = keys(%possibles);	@symbs = keys(%possibles);
}	}
my $noblock;	my $noblock;
Line 8680 sub has_comm_blocking {	Line 9030 sub has_comm_blocking {
}	}
}	}
}	}
unless ($noblock) {	unless ($noblock) {
return @blockers;	return @blockers;
}	}
return;	return;
}	}
}	}

# -------------------------------- Deversion and split uri into path an filename	sub deeplink_check {
	my ($priv,$symb,$uri) = @_;
	return unless ($env{'request.course.id'});
	return unless ($priv eq 'bre');
	return if ($env{'request.state'} eq 'construct');
	return if ($env{'request.role.adv'});
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	my (%possibles,@symbs);
	if (!$symb) {
	$symb = &symbread($uri,1,1,1,\%possibles);
	}
	if ($symb) {
	@symbs = ($symb);
	} elsif (keys(%possibles)) {
	@symbs = keys(%possibles);
	}

	my ($deeplink_symb,$allow);
	if ($env{'request.deeplink.login'}) {
	$deeplink_symb = &Apache::loncommon::deeplink_login_symb($cnum,$cdom);
	}
	foreach my $symb (@symbs) {
	last if ($allow);
	my $deeplink = &EXT("resource.0.deeplink",$symb);
	if ($deeplink eq '') {
	$allow = 1;
	} else {
	my ($listed,$scope,$access) = split(/,/,$deeplink);
	if ($access eq 'any') {
	$allow = 1;
	} elsif ($deeplink_symb) {
	if ($access eq 'only') {
	if ($scope eq 'res') {
	if ($symb eq $deeplink_symb) {
	$allow = 1;
	}
	} elsif (($scope eq 'map') \|\| ($scope eq 'rec')) {
	my ($map_from_symb,$map_from_login);
	$map_from_symb = &deversion((&decode_symb($symb))[0]);
	if ($deeplink_symb =~ /\.(page\|sequence)$/) {
	$map_from_login = &deversion((&decode_symb($deeplink_symb))[2]);
	} else {
	$map_from_login = &deversion((&decode_symb($deeplink_symb))[0]);
	}
	if (($map_from_symb) && ($map_from_login)) {
	if ($map_from_symb eq $map_from_login) {
	$allow = 1;
	} elsif ($scope eq 'rec') {
	my @recurseup = &get_map_hierarchy($map_from_symb,$env{'request.course.id'});
	if (grep(/^\Q$map_from_login\E$/,@recurseup)) {
	$allow = 1;
	}
	}
	}
	}
	} else {
	my ($acctype,$item) = split(/:/,$access);
	if (($acctype eq 'lti') && ($env{'user.linkprotector'})) {
	if (grep(/^\Q$item\E$/,split(/,/,$env{'user.linkprotector'}))) {
	my %tinyurls = &get('tiny',[$symb],$cdom,$cnum);
	if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.linkproturis'}))) {
	$allow = 1;
	}
	}
	} elsif (($acctype eq 'key') && ($env{'user.deeplinkkey'})) {
	if (grep(/^\Q$item\E$/,split(/,/,$env{'user.deeplinkkey'}))) {
	my %tinyurls = &get('tiny',[$symb],$cdom,$cnum);
	if (grep(/\Q$tinyurls{$symb}\E$/,split(/,/,$env{'user.keyedlinkuri'}))) {
	$allow = 1;
	}
	}
	}
	}
	}
	}
	}
	return if ($allow);
	return 1;
	}

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

#	#
# Removes the version from a URI and	# Removes the version from a URI and
Line 8813 sub metadata_query {	Line 9244 sub metadata_query {
my @server_list = (defined($server_array) ? @$server_array	my @server_list = (defined($server_array) ? @$server_array
: keys(%libserv) );	: keys(%libserv) );
for my $server (@server_list) {	for my $server (@server_list) {
my $domains = '';	my $domains = '';
if (ref($domains_hash) eq 'HASH') {	if (ref($domains_hash) eq 'HASH') {
$domains = $domains_hash->{$server};	$domains = $domains_hash->{$server};
}	}
unless ($custom or $customshow) {	unless ($custom or $customshow) {
my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);	my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
Line 8948 sub fetch_enrollment_query {	Line 9379 sub fetch_enrollment_query {
}	}

sub get_query_reply {	sub get_query_reply {
my ($queryid,$sleep,$loopmax) = @_;	my ($queryid,$sleep,$loopmax) = @_;;
if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {	if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {
$sleep = 0.2;	$sleep = 0.2;
}	}
Line 9081 sub auto_validate_instcode {	Line 9512 sub auto_validate_instcode {
return ($outcome,$description,$defaultcredits);	return ($outcome,$description,$defaultcredits);
}	}

	sub auto_validate_inst_crosslist {
	my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_;
	my ($homeserver,$response);
	if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
	$homeserver = &homeserver($cnum,$cdom);
	}
	if (!defined($homeserver)) {
	if ($cdom =~ /^$match_domain$/) {
	$homeserver = &domain($cdom,'primary');
	}
	}
	unless (($homeserver eq '') \|\| ($homeserver eq 'no_host')) {
	$response=&reply('autovalidateinstcrosslist:'.$cdom.':'.
	&escape($instcode).':'.&escape($inst_xlist).':'.
	&escape($coowner),$homeserver);
	}
	return $response;
	}

sub auto_create_password {	sub auto_create_password {
my ($cnum,$cdom,$authparam,$udom) = @_;	my ($cnum,$cdom,$authparam,$udom) = @_;
my ($homeserver,$response);	my ($homeserver,$response);
Line 9352 sub auto_validate_class_sec {	Line 9802 sub auto_validate_class_sec {
return $response;	return $response;
}	}

	sub auto_instsec_reformat {
	my ($cdom,$action,$instsecref) = @_;
	return unless(($action eq 'clutter') \|\| ($action eq 'declutter'));
	my @homeservers;
	if (defined(&domain($cdom,'primary'))) {
	push(@homeservers,&domain($cdom,'primary'));
	} else {
	my %servers = &get_servers($cdom,'library');
	foreach my $tryserver (keys(%servers)) {
	if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
	push(@homeservers,$tryserver);
	}
	}
	}
	my $response;
	my %reformatted = %{$instsecref};
	foreach my $server (@homeservers) {
	if (ref($instsecref) eq 'HASH') {
	my $info = &freeze_escape($instsecref);
	my $response=&reply('autoinstsecreformat:'.$cdom.':'.
	$action.':'.$info,$server);
	next if ($response =~ /(con_lost\|error\|no_such_host\|refused\|unknown_command)/);
	my @items = split(/&/,$response);
	foreach my $item (@items) {
	my ($key,$value) = split(/=/,$item);
	$reformatted{&unescape($key)} = &thaw_unescape($value);
	}
	}
	}
	return %reformatted;
	}

sub auto_validate_instclasses {	sub auto_validate_instclasses {
my ($cdom,$cnum,$owners,$classesref) = @_;	my ($cdom,$cnum,$owners,$classesref) = @_;
my ($homeserver,%validations);	my ($homeserver,%validations);
Line 9395 sub auto_crsreq_update {	Line 9877 sub auto_crsreq_update {
':'.&escape($action).':'.&escape($ownername).':'.	':'.&escape($action).':'.&escape($ownername).':'.
&escape($ownerdomain).':'.&escape($fullname).':'.	&escape($ownerdomain).':'.&escape($fullname).':'.
&escape($title).':'.&escape($code).':'.	&escape($title).':'.&escape($code).':'.
&escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);	&escape($accessstart).':'.&escape($accessend).':'.$info,
	$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {	unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);	my @items = split(/&/,$response);
foreach my $item (@items) {	foreach my $item (@items) {
Line 9655 sub plaintext {	Line 10138 sub plaintext {
my %rolenames = (	my %rolenames = (
Course => 'std',	Course => 'std',
Community => 'alt1',	Community => 'alt1',
	Placement => 'std',
);	);
if ($cid ne '') {	if ($cid ne '') {
if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {	if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
Line 9736 sub assignrole {	Line 10220 sub assignrole {
}	}
if ($refused) {	if ($refused) {
my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});	my ($cdom,$cnum) = ($cwosec =~ m{^/?($match_domain)/($match_courseid)$});
if (!$selfenroll && $context eq 'course') {	if (!$selfenroll && (($context eq 'course') \|\| ($context eq 'ltienroll' && $env{'request.lti.login'}))) {
my %crsenv;	my %crsenv;
if ($role eq 'cc' \|\| $role eq 'co') {	if ($role eq 'cc' \|\| $role eq 'co') {
%crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));	%crsenv = &userenvironment($cdom,$cnum,('internal.courseowner'));
Line 9756 sub assignrole {	Line 10240 sub assignrole {
}	}
}	}
}	}
} elsif (($selfenroll == 1) && ($role eq 'st') && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {	} elsif (($selfenroll == 1) && ($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
$refused = '';	if ($role eq 'st') {
	$refused = '';
	} elsif (($context eq 'ltienroll') && ($env{'request.lti.login'})) {
	$refused = '';
	}
} elsif ($context eq 'requestcourses') {	} elsif ($context eq 'requestcourses') {
my @possroles = ('st','ta','ep','in','cc','co');	my @possroles = ('st','ta','ep','in','cc','co');
if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {	if ((grep(/^\Q$role\E$/,@possroles)) && ($env{'user.name'} ne '' && $env{'user.domain'} ne '')) {
Line 9776 sub assignrole {	Line 10264 sub assignrole {
}	}
}	}
} elsif ($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 = '';	$refused = '';
Line 9784 sub assignrole {	Line 10272 sub assignrole {
my %domdefaults = &get_domain_defaults($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 9878 sub assignrole {	Line 10366 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,$udom);
Line 9896 sub autoupdate_coowners {	Line 10384 sub autoupdate_coowners {
if ($domdesign{$cdom.'.autoassign.co-owners'}) {	if ($domdesign{$cdom.'.autoassign.co-owners'}) {
my %coursehash = &coursedescription($cdom.'_'.$cnum);	my %coursehash = &coursedescription($cdom.'_'.$cnum);
my $instcode = $coursehash{'internal.coursecode'};	my $instcode = $coursehash{'internal.coursecode'};
	my $xlists = $coursehash{'internal.crosslistings'};
if ($instcode ne '') {	if ($instcode ne '') {
if (($start && $start <= $now) && ($end == 0) \|\| ($end > $now)) {	if (($start && $start <= $now) && ($end == 0) \|\| ($end > $now)) {
unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {	unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);	my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);	my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
	unless ($result eq 'valid') {
	if ($xlists ne '') {
	foreach my $xlist (split(',',$xlists)) {
	my ($inst_crosslist,$lcsec) = split(':',$xlist);
	$result =
	&auto_validate_inst_crosslist($cnum,$cdom,$instcode,
	$inst_crosslist,$uname.':'.$udom);
	last if ($result eq 'valid');
	}
	}
	}
if ($result eq 'valid') {	if ($result eq 'valid') {
if ($coursehash{'internal.co-owners'}) {	if ($coursehash{'internal.co-owners'}) {
foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {	foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
Line 9913 sub autoupdate_coowners {	Line 10413 sub autoupdate_coowners {
} else {	} else {
push(@newcoowners,$uname.':'.$udom);	push(@newcoowners,$uname.':'.$udom);
}	}
} else {	} elsif ($coursehash{'internal.co-owners'}) {
if ($coursehash{'internal.co-owners'}) {	foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {	unless ($coowner eq $uname.':'.$udom) {
unless ($coowner eq $uname.':'.$udom) {	push(@newcoowners,$coowner);
push(@newcoowners,$coowner);
}
}
unless (@newcoowners > 0) {
$delcoowners = 1;
$coowners = '';
}	}
}	}
	unless (@newcoowners > 0) {
	$delcoowners = 1;
	$coowners = '';
	}
}	}
if (@newcoowners \|\| $delcoowners) {	if (@newcoowners \|\| $delcoowners) {
&store_coowners($cdom,$cnum,$coursehash{'home'},	&store_coowners($cdom,$cnum,$coursehash{'home'},
Line 10039 sub modifyuser {	Line 10537 sub modifyuser {
my $newuser;	my $newuser;
if ($uhome eq 'no_host') {	if ($uhome eq 'no_host') {
$newuser = 1;	$newuser = 1;
	unless (($umode && ($upass ne '')) \|\| ($umode eq 'localauth') \|\|
	($umode eq 'lti')) {
	return 'error: more information needed to create new user';
	}
}	}
# ----------------------------------------------------------------- Create User	# ----------------------------------------------------------------- Create User
if (($uhome eq 'no_host') &&	if (($uhome eq 'no_host') &&
(($umode && $upass) \|\| ($umode eq 'localauth'))) {	(($umode && $upass) \|\| ($umode eq 'localauth') \|\| ($umode eq 'lti'))) {
my $unhome='';	my $unhome='';
if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {	if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
$unhome = $desiredhome;	$unhome = $desiredhome;
Line 10084 sub modifyuser {	Line 10586 sub modifyuser {
'current user id "'.$uidhash{$uname}.'".';	'current user id "'.$uidhash{$uname}.'".';
}	}
} else {	} else {
&idput($udom,($uname => $uid));	&idput($udom,{$uname => $uid},$uhome,'ids');
}	}
}	}
# -------------------------------------------------------------- Add names, etc	# -------------------------------------------------------------- Add names, etc
Line 10209 sub modifystudent {	Line 10711 sub modifystudent {
# student's environment	# student's environment
$uid = undef if (!$forceid);	$uid = undef if (!$forceid);
$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,	$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
$gene,$usec,$end,$start,$type,$locktype,	$gene,$usec,$end,$start,$type,$locktype,
$cid,$selfenroll,$context,$credits,$instsec);	$cid,$selfenroll,$context,$credits,$instsec);
return $reply;	return $reply;
}	}
Line 10491 sub generate_coursenum {	Line 10993 sub generate_coursenum {
sub is_course {	sub is_course {
my ($cdom, $cnum) = scalar(@_) == 1 ?	my ($cdom, $cnum) = scalar(@_) == 1 ?
($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;	($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;

return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));	return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
my $uhome=&homeserver($cnum,$cdom);	my $uhome=&homeserver($cnum,$cdom);
my $iscourse;	my $iscourse;
Line 10509 sub is_course {	Line 11012 sub is_course {
&do_cache_new('iscourse',$hashid,$iscourse,3600);	&do_cache_new('iscourse',$hashid,$iscourse,3600);
}	}
}	}
return unless($iscourse);	return unless ($iscourse);
return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;	return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
}	}

Line 10708 sub files_not_in_path {	Line 11211 sub files_not_in_path {
return (@return_files);	return (@return_files);
}	}

	#------------------------------Submitted/Handedback Portfolio Files Versioning

	sub portfiles_versioning {
	my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
	my $portfolio_root = '/userfiles/portfolio';
	return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
	foreach my $file (@{$portfiles}) {
	&unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
	my ($directory,$answer_file) =($file =~ /^(.?)([^\/])$/);
	my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
	my $getpropath = 1;
	my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
	$stu_name,$getpropath);
	my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
	my $new_answer =
	&version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
	if ($new_answer ne 'problem getting file') {
	push(@{$versioned_portfiles}, $directory.$new_answer);
	&mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
	[$symb,$env{'request.course.id'},'graded']);
	}
	}
	}

	sub get_next_version {
	my ($answer_name, $answer_ext, $dir_list) = @_;
	my $version;
	if (ref($dir_list) eq 'ARRAY') {
	foreach my $row (@{$dir_list}) {
	my ($file) = split(/\&/,$row,2);
	my ($file_name,$file_version,$file_ext) =
	&file_name_version_ext($file);
	if (($file_name eq $answer_name) &&
	($file_ext eq $answer_ext)) {
	# gets here if filename and extension match,
	# regardless of version
	if ($file_version ne '') {
	# a versioned file is found so save it for later
	if ($file_version > $version) {
	$version = $file_version;
	}
	}
	}
	}
	}
	$version ++;
	return($version);
	}

	sub version_selected_portfile {
	my ($domain,$stu_name,$directory,$file_name,$version) = @_;
	my ($answer_name,$answer_ver,$answer_ext) =
	&file_name_version_ext($file_name);
	my $new_answer;
	$env{'form.copy'} =
	&getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
	if($env{'form.copy'} eq '-1') {
	$new_answer = 'problem getting file';
	} else {
	$new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
	my $copy_result =
	&finishuserfileupload($stu_name,$domain,'copy',
	'/portfolio'.$directory.$new_answer);
	}
	undef($env{'form.copy'});
	return ($new_answer);
	}

	sub file_name_version_ext {
	my ($file)=@_;
	my @file_parts = split(/\./, $file);
	my ($name,$version,$ext);
	if (@file_parts > 1) {
	$ext=pop(@file_parts);
	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
	$version=pop(@file_parts);
	}
	$name=join('.',@file_parts);
	} else {
	$name=join('.',@file_parts);
	}
	return($name,$version,$ext);
	}

#----------------------------------------------Get portfolio file permissions	#----------------------------------------------Get portfolio file permissions

sub get_portfile_permissions {	sub get_portfile_permissions {
Line 10852 sub modify_access_controls {	Line 11439 sub modify_access_controls {
}	}

sub make_public_indefinitely {	sub make_public_indefinitely {
my ($requrl) = @_;	my (@requrl) = @_;
	return &automated_portfile_access('public',\@requrl);
	}

	sub automated_portfile_access {
	my ($accesstype,$addsref,$delsref,$info) = @_;
	unless (($accesstype eq 'public') \|\| ($accesstype eq 'ip')) {
	return 'invalid';
	}
	my %urls;
	if (ref($addsref) eq 'ARRAY') {
	foreach my $requrl (@{$addsref}) {
	if (&is_portfolio_url($requrl)) {
	unless (exists($urls{$requrl})) {
	$urls{$requrl} = 'add';
	}
	}
	}
	}
	if (ref($delsref) eq 'ARRAY') {
	foreach my $requrl (@{$delsref}) {
	if (&is_portfolio_url($requrl)) {
	unless (exists($urls{$requrl})) {
	$urls{$requrl} = 'delete';
	}
	}
	}
	}
	unless (keys(%urls)) {
	return 'invalid';
	}
	my $ip;
	if ($accesstype eq 'ip') {
	if (ref($info) eq 'HASH') {
	if ($info->{'ip'} ne '') {
	$ip = $info->{'ip'};
	}
	}
	if ($ip eq '') {
	return 'invalid';
	}
	}
	my $errors;
my $now = time;	my $now = time;
my $action = 'activate';	my %current_perms;
my $aclnum = 0;	foreach my $requrl (sort(keys(%urls))) {
if (&is_portfolio_url($requrl)) {	my $action;
	if ($urls{$requrl} eq 'add') {
	$action = 'activate';
	} else {
	$action = 'none';
	}
	my $aclnum = 0;
my (undef,$udom,$unum,$file_name,$group) =	my (undef,$udom,$unum,$file_name,$group) =
&parse_portfolio_url($requrl);	&parse_portfolio_url($requrl);
my $current_perms = &get_portfile_permissions($udom,$unum);	unless (exists($current_perms{$unum.':'.$udom})) {
my %access_controls = &get_access_controls($current_perms,	$current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
	}
	my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
$group,$file_name);	$group,$file_name);
foreach my $key (keys(%{$access_controls{$file_name}})) {	foreach my $key (keys(%{$access_controls{$file_name}})) {
my ($num,$scope,$end,$start) =	my ($num,$scope,$end,$start) =
($key =~ /^([^:]+):([a-z]+)_(\d)_?(\d)$/);	($key =~ /^([^:]+):([a-z]+)_(\d)_?(\d)$/);
if ($scope eq 'public') {	if ($scope eq $accesstype) {
if ($start <= $now && $end == 0) {	if (($start <= $now) && ($end == 0)) {
$action = 'none';	if ($accesstype eq 'ip') {
} else {	if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
	if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
	if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
	if ($urls{$requrl} eq 'add') {
	$action = 'none';
	last;
	} else {
	$action = 'delete';
	$aclnum = $num;
	last;
	}
	}
	}
	}
	} elsif ($accesstype eq 'public') {
	if ($urls{$requrl} eq 'add') {
	$action = 'none';
	last;
	} else {
	$action = 'delete';
	$aclnum = $num;
	last;
	}
	}
	} elsif ($accesstype eq 'public') {
$action = 'update';	$action = 'update';
$aclnum = $num;	$aclnum = $num;
	last;
}	}
last;
}	}
}	}
if ($action eq 'none') {	if ($action eq 'none') {
return 'ok';	next;
} else {	} else {
my %changes;	my %changes;
my $newend = 0;	my $newend = 0;
my $newstart = $now;	my $newstart = $now;
my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;	my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
$changes{$action}{$newkey} = {	$changes{$action}{$newkey} = {
type => 'public',	type => $accesstype,
time => {	time => {
start => $newstart,	start => $newstart,
end => $newend,	end => $newend,
},	},
};	};
	if ($accesstype eq 'ip') {
	$changes{$action}{$newkey}{'ip'} = [$ip];
	}
my ($outcome,$deloutcome,$new_values,$translation) =	my ($outcome,$deloutcome,$new_values,$translation) =
&modify_access_controls($file_name,\%changes,$udom,$unum);	&modify_access_controls($file_name,\%changes,$udom,$unum);
return $outcome;	unless ($outcome eq 'ok') {
	$errors .= $outcome.' ';
	}
}	}
	}
	if ($errors) {
	$errors =~ s/\s$//;
	return $errors;
} else {	} else {
return 'invalid';	return 'ok';
}	}
}	}

Line 11099 sub dirlist {	Line 11769 sub dirlist {
foreach my $user (sort(keys(%allusers))) {	foreach my $user (sort(keys(%allusers))) {
push(@alluserslist,$user.'&user');	push(@alluserslist,$user.'&user');
}	}

if (!%listerror) {	if (!%listerror) {
# no errors	# no errors
return (\@alluserslist);	return (\@alluserslist);
} elsif (scalar(keys(%servers)) == 1) {	} elsif (scalar(keys(%servers)) == 1) {
# one library server, one error	# one library server, one error
my ($key) = keys(%listerror);	my ($key) = keys(%listerror);
return (\@alluserslist, $listerror{$key});	return (\@alluserslist, $listerror{$key});
} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {	} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
Line 11112 sub dirlist {	Line 11783 sub dirlist {
return (\@alluserslist, 'con_lost');	return (\@alluserslist, 'con_lost');
} else {	} else {
# multiple library servers and no con_lost -> data should be	# multiple library servers and no con_lost -> data should be
# complete.	# complete.
return (\@alluserslist);	return (\@alluserslist);
}	}

Line 11188 sub stat_file {	Line 11859 sub stat_file {
return ();	return ();
}	}

	# --------------------------------------------------------- recursedirs
	# Recursive function to traverse either a specific user's Authoring Space
	# or corresponding Published Resource Space, and populate the hash ref:
	# $dirhashref with URLs of all directories, and if $filehashref hash
	# ref arg is provided, the URLs of any files, excluding versioned, .meta,
	# or .rights files in resource space, and .meta, .save, .log, and .bak
	# files in Authoring Space.
	#
	# Inputs:
	#
	# $is_home - true if current server is home server for user's space
	# $context - either: priv, or res respectively for Authoring or Resource Space.
	# $docroot - Document root (i.e., /home/httpd/html
	# $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname
	# $relpath - Current path (relative to top level).
	# $dirhashref - reference to hash to populate with URLs of directories (Required)
	# $filehashref - reference to hash to populate with URLs of files (Optional)
	#
	# Returns: nothing
	#
	# Side Effects: populates $dirhashref, and $filehashref (if provided).
	#
	# Currently used by interface/londocs.pm to create linked select boxes for
	# directory and filename to import a Course "Author" resource into a course, and
	# also to create linked select boxes for Authoring Space and Directory to choose
	# save location for creation of a new "standard" problem from the Course Editor.
	#

	sub recursedirs {
	my ($is_home,$context,$docroot,$toppath,$relpath,$dirhashref,$filehashref) = @_;
	return unless (ref($dirhashref) eq 'HASH');
	my $currpath = $docroot.$toppath;
	if ($relpath) {
	$currpath .= "/$relpath";
	}
	my $savefile;
	if (ref($filehashref)) {
	$savefile = 1;
	}
	if ($is_home) {
	if (opendir(my $dirh,$currpath)) {
	foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) {
	next if ($item eq '');
	if (-d "$currpath/$item") {
	my $newpath;
	if ($relpath) {
	$newpath = "$relpath/$item";
	} else {
	$newpath = $item;
	}
	$dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
	&recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
	} elsif ($savefile) {
	if ($context eq 'priv') {
	unless ($item =~ /\.(meta\|save\|log\|bak\|DS_Store)$/) {
	$filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
	}
	} else {
	unless (($item =~ /\.meta$/) \|\| ($item =~ /\.\d+\.\w+$/) \|\| ($item =~ /\.rights$/)) {
	$filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
	}
	}
	}
	}
	closedir($dirh);
	}
	} else {
	my ($dirlistref,$listerror) =
	&dirlist($toppath.$relpath);
	my @dir_lines;
	my $dirptr=16384;
	if (ref($dirlistref) eq 'ARRAY') {
	foreach my $dir_line (sort
	{
	my ($afile)=split('&',$a,2);
	my ($bfile)=split('&',$b,2);
	return (lc($afile) cmp lc($bfile));
	} (@{$dirlistref})) {
	my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) =
	split(/\&/,$dir_line,16);
	$item =~ s/\s+$//;
	next if (($item =~ /^\.\.?$/) \|\| ($obs));
	if ($dirptr&$testdir) {
	my $newpath;
	if ($relpath) {
	$newpath = "$relpath/$item";
	} else {
	$relpath = '/';
	$newpath = $item;
	}
	$dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
	&recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
	} elsif ($savefile) {
	if ($context eq 'priv') {
	unless ($item =~ /\.(meta\|save\|log\|bak\|DS_Store)$/) {
	$filehashref->{$relpath}{$item} = 1;
	}
	} else {
	unless (($item =~ /\.meta$/) \|\| ($item =~ /\.\d+\.\w+$/)) {
	$filehashref->{$relpath}{$item} = 1;
	}
	}
	}
	}
	}
	}
	return;
	}

# -------------------------------------------------------- Value of a Condition	# -------------------------------------------------------- Value of a Condition

# gets the value of a specific preevaluated condition	# gets the value of a specific preevaluated condition
Line 11352 sub get_userresdata {	Line 12132 sub get_userresdata {
# $name - Course/user name.	# $name - Course/user name.
# $domain - Name of the domain the user/course is registered on.	# $domain - Name of the domain the user/course is registered on.
# $type - Type of thing $name is (must be 'course' or 'user')	# $type - Type of thing $name is (must be 'course' or 'user')
	# $mapp - decluttered URL of enclosing map
	# $recursed - Ref to scalar -- set to 1, if nested maps have been recursed.
	# $recurseup - Ref to array of map URLs, starting with map containing
	# $mapp up through hierarchy of nested maps to top level map.
	# $courseid - CourseID (first part of param identifier).
	# $modifier - Middle part of param identifier.
	# $what - Last part of param identifier.
# @which - Array of names of resources desired.	# @which - Array of names of resources desired.
# Returns:	# Returns:
# The value of the first reasource in @which that is found in the	# The value of the first reasource in @which that is found in the
Line 11361 sub get_userresdata {	Line 12148 sub get_userresdata {
# 'user', an undefined reference is returned.	# 'user', an undefined reference is returned.
# If none of the resources are found, an undef is returned	# If none of the resources are found, an undef is returned
sub resdata {	sub resdata {
my ($name,$domain,$type,@which)=@_;	my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid,
	$modifier,$what,@which)=@_;
my $result;	my $result;
if ($type eq 'course') {	if ($type eq 'course') {
$result=&get_courseresdata($name,$domain);	$result=&get_courseresdata($name,$domain);
Line 11370 sub resdata {	Line 12158 sub resdata {
}	}
if (!ref($result)) { return $result; }	if (!ref($result)) { return $result; }
foreach my $item (@which) {	foreach my $item (@which) {
if (defined($result->{$item->[0]})) {	if ($item->[1] eq 'course') {
return [$result->{$item->[0]},$item->[1]];	if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) {
	unless ($$recursed) {
	@{$recurseup} = &get_map_hierarchy($mapp,$courseid);
	$$recursed = 1;
	}
	foreach my $item (@${recurseup}) {
	my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what;
	last if (defined($result->{$norecursechk}));
	my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what;
	if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; }
	}
	}
}	}
	if (defined($result->{$item->[0]})) {
	return [$result->{$item->[0]},$item->[1]];
	}
}	}
return undef;	return undef;
}	}
Line 11396 sub get_domain_lti {	Line 12198 sub get_domain_lti {
my %domconfig = &get_dom('configuration',[$name],$cdom);	my %domconfig = &get_dom('configuration',[$name],$cdom);
if (ref($domconfig{$name}) eq 'HASH') {	if (ref($domconfig{$name}) eq 'HASH') {
%lti = %{$domconfig{$name}};	%lti = %{$domconfig{$name}};
my %encdomconfig = &get_dom('encconfig',[$name],$cdom);	my %encdomconfig = &get_dom('encconfig',[$name],$cdom,undef,1);
if (ref($encdomconfig{$name}) eq 'HASH') {	if (ref($encdomconfig{$name}) eq 'HASH') {
foreach my $id (keys(%lti)) {	foreach my $id (keys(%lti)) {
if (ref($encdomconfig{$name}{$id}) eq 'HASH') {	if (ref($encdomconfig{$name}{$id}) eq 'HASH') {
Line 11423 sub get_numsuppfiles {	Line 12225 sub get_numsuppfiles {
unless (defined($cached)) {	unless (defined($cached)) {
my $chome=&homeserver($cnum,$cdom);	my $chome=&homeserver($cnum,$cdom);
unless ($chome eq 'no_host') {	unless ($chome eq 'no_host') {
($suppcount,my $errors) = (0,0);	($suppcount,my $supptools,my $errors) = (0,0,0);
my $suppmap = 'supplemental.sequence';	my $suppmap = 'supplemental.sequence';
($suppcount,$errors) =	($suppcount,$supptools,$errors) =
&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);	&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,
	$supptools,$errors);
}	}
&do_cache_new('suppcount',$hashid,$suppcount,600);	&do_cache_new('suppcount',$hashid,$suppcount,600);
}	}
Line 11437 sub get_numsuppfiles {	Line 12240 sub get_numsuppfiles {
# EXT resource caching routines	# EXT resource caching routines
#	#

	{
	# Cache (5 seconds) of map hierarchy for speedup of navmaps display
	#
	# The course for which we cache
	my $cachedmapkey='';
	# The cached recursive maps for this course
	my %cachedmaps=();
	# When this was last done
	my $cachedmaptime='';

sub clear_EXT_cache_status {	sub clear_EXT_cache_status {
&delenv('cache.EXT.');	&delenv('cache.EXT.');
}	}
Line 11461 sub EXT_cache_set {	Line 12274 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,$recurse,$cid,$recurseupref)=@_;
unless ($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 11614 sub EXT {	Line 12427 sub EXT {
}	}
}	}

my ($section, $group, @groups);	my ($section, $group, @groups, @recurseup, $recursed);
my ($courselevelm,$courselevel);	if (ref($recurseupref) eq 'ARRAY') {
	@recurseup = @{$recurseupref};
	$recursed = 1;
	}
	my ($courselevelm,$courseleveli,$courselevel,$mapp);
if (($courseid eq '') && ($cid)) {	if (($courseid eq '') && ($cid)) {
$courseid = $cid;	$courseid = $cid;
}	}
if (($symbparm && $courseid) &&	if (($symbparm && $courseid) &&
(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {	(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {

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

# ----------------------------------------------------- Cascading lookup scheme	# ----------------------------------------------------- Cascading lookup scheme
my $symbp=$symbparm;	my $symbp=$symbparm;
my $mapp=&deversion((&decode_symb($symbp))[0]);	$mapp=&deversion((&decode_symb($symbp))[0]);

my $symbparm=$symbp.'.'.$spacequalifierrest;	my $symbparm=$symbp.'.'.$spacequalifierrest;
	my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest;
my $mapparm=$mapp.'___(all).'.$spacequalifierrest;	my $mapparm=$mapp.'___(all).'.$spacequalifierrest;

if (($env{'user.name'} eq $uname) &&	if (($env{'user.name'} eq $uname) &&
($env{'user.domain'} eq $udom)) {	($env{'user.domain'} eq $udom)) {
$section=$env{'request.course.sec'};	$section=$env{'request.course.sec'};
Line 11647 sub EXT {	Line 12463 sub EXT {

my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;	my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;	my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
	my $secleveli=$courseid.'.['.$section.'].'.$recurseparm;
my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;	my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;

$courselevel=$courseid.'.'.$spacequalifierrest;	$courselevel=$courseid.'.'.$spacequalifierrest;
my $courselevelr=$courseid.'.'.$symbparm;	my $courselevelr=$courseid.'.'.$symbparm;
	$courseleveli=$courseid.'.'.$recurseparm;
$courselevelm=$courseid.'.'.$mapparm;	$courselevelm=$courseid.'.'.$mapparm;

# ----------------------------------------------------------- first, check user	# ----------------------------------------------------------- first, check user

my $userreply=&resdata($uname,$udom,'user',	my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed,
	\@recurseup,$courseid,'.',$spacequalifierrest,
([$courselevelr,'resource'],	([$courselevelr,'resource'],
[$courselevelm,'map' ],	[$courselevelm,'map' ],
	[$courseleveli,'map' ],
[$courselevel, 'course' ]));	[$courselevel, 'course' ]));
if (defined($userreply)) { return &get_reply($userreply); }	if (defined($userreply)) { return &get_reply($userreply); }

Line 11665 sub EXT {	Line 12485 sub EXT {
my $coursereply;	my $coursereply;
if (@groups > 0) {	if (@groups > 0) {
$coursereply = &check_group_parms($courseid,\@groups,$symbparm,	$coursereply = &check_group_parms($courseid,\@groups,$symbparm,
$mapparm,$spacequalifierrest);	$recurseparm,$mapparm,$spacequalifierrest,
if (defined($coursereply)) { return &get_reply($coursereply); }	$mapp,\$recursed,\@recurseup);
	if (defined($coursereply)) { return &get_reply($coursereply); }
}	}

$coursereply=&resdata($env{'course.'.$courseid.'.num'},	$coursereply=&resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},	$env{'course.'.$courseid.'.domain'},
'course',	'course',$mapp,\$recursed,\@recurseup,
	$courseid,'.['.$section.'].',$spacequalifierrest,
([$seclevelr, 'resource'],	([$seclevelr, 'resource'],
[$seclevelm, 'map' ],	[$seclevelm, 'map' ],
	[$secleveli, 'map' ],
[$seclevel, 'course' ],	[$seclevel, 'course' ],
[$courselevelr,'resource']));	[$courselevelr,'resource']));
if (defined($coursereply)) { return &get_reply($coursereply); }	if (defined($coursereply)) { return &get_reply($coursereply); }
Line 11690 sub EXT {	Line 12513 sub EXT {
if ($thisparm) { return &get_reply([$thisparm,'resource']); }	if ($thisparm) { return &get_reply([$thisparm,'resource']); }
}	}
# ------------------------------------------ fourth, look in resource metadata	# ------------------------------------------ fourth, look in resource metadata

$spacequalifierrest=~s/\./\_/;	my $what = $spacequalifierrest;
	$what=~s/\./\_/;
my $filename;	my $filename;
if (!$symbparm) { $symbparm=&symbread(); }	if (!$symbparm) { $symbparm=&symbread(); }
if ($symbparm) {	if ($symbparm) {
Line 11699 sub EXT {	Line 12523 sub EXT {
} else {	} else {
$filename=$env{'request.filename'};	$filename=$env{'request.filename'};
}	}
my $metadata=&metadata($filename,$spacequalifierrest);	my $toolsymb;
	if (($filename =~ /ext\.tool$/) && ($what ne '0_gradable')) {
	$toolsymb = $symbparm;
	}
	my $metadata=&metadata($filename,$what,$toolsymb);
if (defined($metadata)) { return &get_reply([$metadata,'resource']); }	if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
$metadata=&metadata($filename,'parameter_'.$spacequalifierrest);	$metadata=&metadata($filename,'parameter_'.$what,$toolsymb);
if (defined($metadata)) { return &get_reply([$metadata,'resource']); }	if (defined($metadata)) { return &get_reply([$metadata,'resource']); }

# ---------------------------------------------- fourth, look in rest of course	# ----------------------------------------------- fifth, look in rest of course
if ($symbparm && defined($courseid) &&	if ($symbparm && defined($courseid) &&
$courseid eq $env{'request.course.id'}) {	$courseid eq $env{'request.course.id'}) {
my $coursereply=&resdata($env{'course.'.$courseid.'.num'},	my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},	$env{'course.'.$courseid.'.domain'},
'course',	'course',$mapp,\$recursed,\@recurseup,
	$courseid,'.',$spacequalifierrest,
([$courselevelm,'map' ],	([$courselevelm,'map' ],
	[$courseleveli,'map' ],
[$courselevel, 'course']));	[$courselevel, 'course']));
if (defined($coursereply)) { return &get_reply($coursereply); }	if (defined($coursereply)) { return &get_reply($coursereply); }
}	}
Line 11725 sub EXT {	Line 12555 sub EXT {
if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }	if (defined($partgeneral[0])) { return &get_reply(\@partgeneral); }
}	}
if ($recurse) { return undef; }	if ($recurse) { return undef; }
my $pack_def=&packages_tab_default($filename,$varname);	my $pack_def=&packages_tab_default($filename,$varname,$toolsymb);
if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }	if (defined($pack_def)) { return &get_reply([$pack_def,'resource']); }
# ---------------------------------------------------- Any other user namespace	# ---------------------------------------------------- Any other user namespace
} elsif ($realm eq 'environment') {	} elsif ($realm eq 'environment') {
Line 11750 sub EXT {	Line 12580 sub EXT {
if ($space eq 'name') {	if ($space eq 'name') {
return $ENV{'SERVER_NAME'};	return $ENV{'SERVER_NAME'};
}	}
	} elsif ($realm eq 'client') {
	if ($space eq 'remote_addr') {
	return &get_requestor_ip();
	}
}	}
return '';	return '';
}	}
Line 11767 sub get_reply {	Line 12601 sub get_reply {
}	}

sub check_group_parms {	sub check_group_parms {
my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;	my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp,
my @groupitems = ();	$recursed,$recurseupref) = @_;
my $resultitem;	my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'],
my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);	[$what,'course']);
	my $coursereply;
foreach my $group (@{$groups}) {	foreach my $group (@{$groups}) {
	my @groupitems = ();
foreach my $level (@levels) {	foreach my $level (@levels) {
my $item = $courseid.'.['.$group.'].'.$level->[0];	my $item = $courseid.'.['.$group.'].'.$level->[0];
push(@groupitems,[$item,$level->[1]]);	push(@groupitems,[$item,$level->[1]]);
}	}
	my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
	$env{'course.'.$courseid.'.domain'},
	'course',$mapp,$recursed,$recurseupref,
	$courseid,'.['.$group.'].',$what,
	@groupitems);
	last if (defined($coursereply));
}	}
my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},
'course',@groupitems);
return $coursereply;	return $coursereply;
}	}

	sub get_map_hierarchy {
	my ($mapname,$courseid) = @_;
	my @recurseup = ();
	if ($mapname) {
	if (($cachedmapkey eq $courseid) &&
	(abs($cachedmaptime-time)<5)) {
	if (ref($cachedmaps{$mapname}) eq 'ARRAY') {
	return @{$cachedmaps{$mapname}};
	}
	}
	my $navmap = Apache::lonnavmaps::navmap->new();
	if (ref($navmap)) {
	@recurseup = $navmap->recurseup_maps($mapname);
	undef($navmap);
	$cachedmaps{$mapname} = \@recurseup;
	$cachedmaptime=time;
	$cachedmapkey=$courseid;
	}
	}
	return @recurseup;
	}

	}

sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().	sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
my ($courseid,@groups) = @_;	my ($courseid,@groups) = @_;
@groups = sort(@groups);	@groups = sort(@groups);
Line 11790 sub sort_course_groups { # Sort groups b	Line 12653 sub sort_course_groups { # Sort groups b
}	}

sub packages_tab_default {	sub packages_tab_default {
my ($uri,$varname)=@_;	my ($uri,$varname,$toolsymb)=@_;
my (undef,$part,$name)=split(/\./,$varname);	my (undef,$part,$name)=split(/\./,$varname);

my (@extension,@specifics,$do_default);	my (@extension,@specifics,$do_default);
foreach my $package (split(/,/,&metadata($uri,'packages'))) {	foreach my $package (split(/,/,&metadata($uri,'packages',$toolsymb))) {
my ($pack_type,$pack_part)=split(/_/,$package,2);	my ($pack_type,$pack_part)=split(/_/,$package,2);
if ($pack_type eq 'default') {	if ($pack_type eq 'default') {
$do_default=1;	$do_default=1;
Line 11863 my %metaentry;	Line 12726 my %metaentry;
my %importedpartids;	my %importedpartids;
my %importedrespids;	my %importedrespids;
sub metadata {	sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;	my ($uri,$what,$toolsymb,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);	$uri=&declutter($uri);
# if it is a non metadata possible uri return quickly	# if it is a non metadata possible uri return quickly
if (($uri eq '') \|\|	if (($uri eq '') \|\|
Line 11887 sub metadata {	Line 12750 sub metadata {
my ($result,$cached)=&is_cached_new('meta',$uri);	my ($result,$cached)=&is_cached_new('meta',$uri);
if (defined($cached)) { return $result->{':'.$what}; }	if (defined($cached)) { return $result->{':'.$what}; }
}	}

	#
	# If the uri is for an external tool the file from
	# which metadata should be retrieved depends on whether
	# the tool had been configured to be gradable (set in the Course
	# Editor or Resource Editor).
	#
	# If a valid symb has been included as the third arg in the call
	# to &metadata() that can be used to retrieve the value of
	# parameter_0_gradable set for the resource, and included in the
	# uploaded map containing the tool. The value is retrieved via
	# &EXT(), if a valid symb is available. Otherwise the value of
	# gradable in the exttool_$marker.db file for the tool instance
	# is retrieved via &get().
	#
	# When lonuserstate::traceroute() calls lonnet::EXT() for
	# hiddenresource and encrypturl (during course initialization)
	# the map-level parameter for resource.0.gradable included in the
	# uploaded map containing the tool will not yet have been stored
	# in the user_course_parms.db file for the user's session, so in
	# this case fall back to retrieving gradable status from the
	# exttool_$marker.db file.
	#
	# In order to avoid an infinite loop, &metadata() will return
	# before a call to &EXT(), if the uri is for an external tool
	# and the $what for which metadata is being requested is
	# parameter_0_gradable or 0_gradable.
	#

	if ($uri =~ /ext\.tool$/) {
	if (($what eq 'parameter_0_gradable') \|\| ($what eq '0_gradable')) {
	return;
	} else {
	my ($checked,$use_passback);
	if ($toolsymb ne '') {
	(undef,undef,my $tooluri) = &decode_symb($toolsymb);
	if (($tooluri eq $uri) && (&EXT('resource.0.gradable',$toolsymb))) {
	$checked = 1;
	if (&EXT('resource.0.gradable',$toolsymb) =~ /^yes$/i) {
	$use_passback = 1;
	}
	}
	}
	unless ($checked) {
	my ($ignore,$cdom,$cnum,$marker) = split(m{/},$uri);
	$marker=~s/\D//g;
	if ($marker) {
	my %toolsettings=&get('exttool_'.$marker,['gradable'],$cdom,$cnum);
	$use_passback = $toolsettings{'gradable'};
	}
	}
	if ($use_passback) {
	$filename = '/home/httpd/html/res/lib/templates/LTIpassback.tool';
	} else {
	$filename = '/home/httpd/html/res/lib/templates/LTIstandard.tool';
	}
	}
	}

{	{
# Imported parts would go here	# Imported parts would go here
my @origfiletagids=();	my @origfiletagids=();
Line 11995 sub metadata {	Line 12917 sub metadata {
# Check metadata for imported file to	# Check metadata for imported file to
# see if it contained response items	# see if it contained response items
#	#
	my ($origfile,@libfilekeys);
my %currmetaentry = %metaentry;	my %currmetaentry = %metaentry;
my $libresponseorder = &metadata($location,'responseorder');	@libfilekeys = split(/,/,&metadata($location,'keys',undef,undef,undef,
my $origfile;	$depthcount+1));
if ($libresponseorder ne '') {	if (grep(/^responseorder$/,@libfilekeys)) {
if ($#origfiletagids<0) {	my $libresponseorder = &metadata($location,'responseorder',undef,undef,
undef(%importedrespids);	undef,$depthcount+1);
undef(%importedpartids);	if ($libresponseorder ne '') {
}	if ($#origfiletagids<0) {
@{$importedrespids{$importid}} = split(/\s,\s/,$libresponseorder);	undef(%importedrespids);
if (@{$importedrespids{$importid}} > 0) {	undef(%importedpartids);
$importedresponses = 1;	}
	my @respids = split(/\s,\s/,$libresponseorder);
	if (@respids) {
	$importedrespids{$importid} = join(',',map { $importid.'_'.$_ } @respids);
	}
	if ($importedrespids{$importid} ne '') {
	$importedresponses = 1;
# We need to get the original file and the imported file to get the response order correct	# We need to get the original file and the imported file to get the response order correct
# Load and inspect original file	# Load and inspect original file
if ($#origfiletagids<0) {	if ($#origfiletagids<0) {
my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);	my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
$origfile=&getfile($origfilelocation);	$origfile=&getfile($origfilelocation);
@origfiletagids=($origfile=~/<((?:\w+)response\|import\|part)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);	@origfiletagids=($origfile=~/<((?:\w+)response\|import\|part)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
	}
}	}
}	}
}	}
Line 12019 sub metadata {	Line 12949 sub metadata {
# hash populated for imported library file	# hash populated for imported library file
%metaentry = %currmetaentry;	%metaentry = %currmetaentry;
undef(%currmetaentry);	undef(%currmetaentry);
if ($importmode eq 'problem') {	if ($importmode eq 'part') {
# Import as problem/response
$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
} elsif ($importmode eq 'part') {
# Import as part(s)	# Import as part(s)
$importedparts=1;	$importedparts=1;
# We need to get the original file and the imported file to get the part order correct	# We need to get the original file and the imported file to get the part order correct
Line 12037 sub metadata {	Line 12964 sub metadata {
@origfiletagids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);	@origfiletagids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
}	}
}	}
	my @impfilepartids;
# Load and inspect imported file	# If <partorder> tag is included in metadata for the imported file
my $impfile=&getfile($location);	# get the parts in the imported file from that.
my @impfilepartids=($impfile=~/<part[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);	if (grep(/^partorder$/,@libfilekeys)) {
	%currmetaentry = %metaentry;
	my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
	$depthcount+1);
	%metaentry = %currmetaentry;
	undef(%currmetaentry);
	if ($libpartorder ne '') {
	@impfilepartids=split(/\s,\s/,$libpartorder);
	}
	} else {
	# If no <partorder> tag available, load and inspect imported file
	my $impfile=&getfile($location);
	@impfilepartids=($impfile=~/<part[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
	}
if ($#impfilepartids>=0) {	if ($#impfilepartids>=0) {
# This problem had parts	# This problem had parts
$importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);	$importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
Line 12051 sub metadata {	Line 12991 sub metadata {
$importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};	$importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
}	}
} else {	} else {
	# Import as problem or as normal import
	$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
	unless ($importmode eq 'problem') {
# Normal import	# Normal import
$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});	if (defined($token->[2]->{'id'})) {
if (defined($token->[2]->{'id'})) {	$unikey.='_'.$token->[2]->{'id'};
$unikey.='_'.$token->[2]->{'id'};	}
}	}
	# Check metadata for imported file to
	# see if it contained parts
	if (grep(/^partorder$/,@libfilekeys)) {
	%currmetaentry = %metaentry;
	my $libpartorder = &metadata($location,'partorder',undef,undef,undef,
	$depthcount+1);
	%metaentry = %currmetaentry;
	undef(%currmetaentry);
	if ($libpartorder ne '') {
	$importedparts = 1;
	$importedpartids{$token->[2]->{'id'}}=$libpartorder;
	}
	}
}	}

if ($depthcount<20) {	if ($depthcount<20) {
my $metadata =	my $metadata =
&metadata($uri,'keys', $location,$unikey,	&metadata($uri,'keys',$toolsymb,$location,$unikey,
$depthcount+1);	$depthcount+1);
foreach my $meta (split(',',$metadata)) {	foreach my $meta (split(',',$metadata)) {
$metaentry{':'.$meta}=$metaentry{':'.$meta};	$metaentry{':'.$meta}=$metaentry{':'.$meta};
$metathesekeys{$meta}=1;	$metathesekeys{$meta}=1;
}	}

}	}
} else {	} else {
#	#
Line 12135 sub metadata {	Line 13089 sub metadata {
$dir=~s\|[^/]*$\|\|;	$dir=~s\|[^/]*$\|\|;
$location=&filelocation($dir,$location);	$location=&filelocation($dir,$location);
my $rights_metadata =	my $rights_metadata =
&metadata($uri,'keys',$location,'_rights',	&metadata($uri,'keys',$toolsymb,$location,'_rights',
$depthcount+1);	$depthcount+1);
foreach my $rights (split(',',$rights_metadata)) {	foreach my $rights (split(',',$rights_metadata)) {
#$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};	#$metaentry{':'.$rights}=$metacache{$uri}->{':'.$rights};
Line 12156 sub metadata {	Line 13110 sub metadata {
$metathesekeys{'partorder'}=1;	$metathesekeys{'partorder'}=1;
}	}
if ($importedresponses) {	if ($importedresponses) {
# We had imported responses and need to rebuild responseorder	# We had imported responses and need to rebuil responseorder
$metaentry{':responseorder'}='';	$metaentry{':responseorder'}='';
$metathesekeys{'responseorder'}=1;	$metathesekeys{'responseorder'}=1;
}	}
Line 12170 sub metadata {	Line 13124 sub metadata {
} elsif ($origfiletagids[$index] eq 'import') {	} elsif ($origfiletagids[$index] eq 'import') {
if ($importedparts) {	if ($importedparts) {
# We have imported parts at this position	# We have imported parts at this position
$metaentry{':partorder'}.=','.$importedpartids{$origid};	if ($importedpartids{$origid} ne '') {
	$metaentry{':partorder'}.=','.$importedpartids{$origid};
	}
}	}
if ($importedresponses) {	if ($importedresponses) {
# We have imported responses at this position	# We have imported responses at this position
if (ref($importedrespids{$origid}) eq 'ARRAY') {	if ($importedrespids{$origid} ne '') {
$metaentry{':responseorder'}.=','.join(',',map { $origid.'_'.$_ } @{$importedrespids{$origid}});	$metaentry{':responseorder'}.=','.$importedrespids{$origid};
}	}
}	}
} else {	} else {
Line 12192 sub metadata {	Line 13148 sub metadata {
$metaentry{':responseorder'}=~s/^\,//;	$metaentry{':responseorder'}=~s/^\,//;
}	}
}	}

$metaentry{':keys'} = join(',',keys(%metathesekeys));	$metaentry{':keys'} = join(',',keys(%metathesekeys));
&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
$metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));	$metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
&do_cache_new('meta',$uri,\%metaentry,$cachetime);	unless ($liburi) {
	&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
}	}
return $metaentry{':'.$what};	return $metaentry{':'.$what};
Line 12469 sub symbverify {	Line 13426 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 ($ids) {
Line 12485 sub symbverify {	Line 13442 sub symbverify {
if (ref($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;	$okay=1;
last;	last;
}	}
}	}
}	}
}	}
untie(%bighash);	untie(%bighash);
}	}
Line 12580 sub symbread {	Line 13537 sub symbread {
unless ($thisfn) {	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 12660 sub symbread {	Line 13617 sub symbread {
}	}
}	}
}	}
} elsif ((!$donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	} elsif ((!$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) {
Line 12668 sub symbread {	Line 13625 sub symbread {
my $canaccess;	my $canaccess;
if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {
$canaccess = 1;	$canaccess = 1;
} else {	} else {
$canaccess = &allowed('bre',$file);	$canaccess = &allowed('bre',$file);
}	}
if ($canaccess) {	if ($canaccess) {
my ($mapid,$resid)=split(/\./,$id);	my ($mapid,$resid)=split(/\./,$id);
if ($bighash{'map_type_'.$mapid} ne 'page') {	if ($bighash{'map_type_'.$mapid} ne 'page') {
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},	my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);	$resid,$thisfn);
next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});	next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});
next unless (($noenccheck) \|\| ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));	next unless (($noenccheck) \|\| ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));
if ($checkforblock) {	if ($checkforblock) {
Line 12856 sub rndseed {	Line 13813 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 13041 sub rndseed_CODE_64bit5 {	Line 13999 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) = map { abs($_); } (split(/[,:]/,$rndseed));
if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {	if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {
&Math::Random::random_set_seed_from_phrase($rndseed);	&Math::Random::random_set_seed_from_phrase($rndseed);
} else {	} else {
Line 13225 sub repcopy_userfile {	Line 14183 sub repcopy_userfile {
}	}
# now the path exists for sure	# now the path exists for sure
# get a user agent	# get a user agent
my $ua=new LWP::UserAgent;
my $transferfile=$file.'.in.transfer';	my $transferfile=$file.'.in.transfer';
# FIXME: this should flock	# FIXME: this should flock
if (-e $transferfile) { return 'ok'; }	if (-e $transferfile) { return 'ok'; }
Line 13236 sub repcopy_userfile {	Line 14193 sub repcopy_userfile {
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);	$request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);
my $response=$ua->request($request,$transferfile);	my $response = &LONCAPA::LWPReq::makerequest($homeserver,$request,$transferfile,\%perlvar,'',0,1);
# did it work?	# did it work?
if ($response->is_error()) {	if ($response->is_error()) {
unlink($transferfile);	unlink($transferfile);
Line 13282 sub getuploaded {	Line 14239 sub getuploaded {
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$uri = $protocol.'://'.$hostname.'/raw/'.$uri;	$uri = $protocol.'://'.$hostname.'/raw/'.$uri;
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request($reqtype,$uri);	my $request=new HTTP::Request($reqtype,$uri);
my $response=$ua->request($request);	my $response=&LONCAPA::LWPReq::makerequest($homeserver,$request,'',\%perlvar,'',0,1);
$$rtncode = $response->code;	$$rtncode = $response->code;
if (! $response->is_success()) {	if (! $response->is_success()) {
return 'failed';	return 'failed';
Line 13436 sub default_login_domain {	Line 14392 sub default_login_domain {
}	}

sub shared_institution {	sub shared_institution {
my ($dom) = @_;	my ($dom,$lonhost) = @_;
	if ($lonhost eq '') {
	$lonhost = $perlvar{'lonHostID'};
	}
my $same_intdom;	my $same_intdom;
my $hostintdom = &internet_dom($perlvar{'lonHostID'});	my $hostintdom = &internet_dom($lonhost);
if ($hostintdom ne '') {	if ($hostintdom ne '') {
my %iphost = &get_iphost();	my %iphost = &get_iphost();
my $primary_id = &domain($dom,'primary');	my $primary_id = &domain($dom,'primary');
Line 13469 sub uses_sts {	Line 14428 sub uses_sts {
return $sts_on;	return $sts_on;
}	}
}	}
my $ua=new LWP::UserAgent;
my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';	my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';
my $request=new HTTP::Request('HEAD',$url);	my $request=new HTTP::Request('HEAD',$url);
my $response=$ua->request($request);	my $response=&LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar,'','','',1);
if ($response->is_success) {	if ($response->is_success) {
my $has_sts = $response->header('Strict-Transport-Security');	my $has_sts = $response->header('Strict-Transport-Security');
if ($has_sts eq '') {	if ($has_sts eq '') {
Line 13495 sub uses_sts {	Line 14453 sub uses_sts {
return;	return;
}	}

	sub waf_allssl {
	my ($host_name) = @_;
	my $alias = &get_proxy_alias();
	if ($host_name eq '') {
	$host_name = $ENV{'SERVER_NAME'};
	}
	if (($host_name ne '') && ($alias eq $host_name)) {
	my $serverhomedom = &host_domain($perlvar{'lonHostID'});
	my %defdomdefaults = &get_domain_defaults($serverhomedom);
	if ($defdomdefaults{'waf_sslopt'}) {
	return $defdomdefaults{'waf_sslopt'};
	}
	}
	return;
	}

sub get_requestor_ip {	sub get_requestor_ip {
my ($r,$nolookup,$noproxy) = @_;	my ($r,$nolookup,$noproxy) = @_;
my $from_ip;	my $from_ip;
if (ref($r)) {	if (ref($r)) {
$from_ip = $r->get_remote_host($nolookup);	if ($r->can('useragent_ip')) {
	if ($noproxy && $r->can('client_ip')) {
	$from_ip = $r->client_ip();
	} else {
	$from_ip = $r->useragent_ip();
	}
	} elsif ($r->connection->can('remote_ip')) {
	$from_ip = $r->connection->remote_ip();
	} else {
	$from_ip = $r->get_remote_host($nolookup);
	}
} else {	} else {
$from_ip = $ENV{'REMOTE_ADDR'};	$from_ip = $ENV{'REMOTE_ADDR'};
}	}
	return $from_ip if ($noproxy);
	# Who controls proxy settings for server
	my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};
	my $proxyinfo = &get_proxy_settings($dom_in_use);
	if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) {
	if ($proxyinfo->{'vpnint'}) {
	if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) {
	return $from_ip;
	}
	}
	if ($proxyinfo->{'trusted'}) {
	if (&ip_match($from_ip,$proxyinfo->{'trusted'})) {
	my $ipheader = $proxyinfo->{'ipheader'};
	my ($ip,$xfor);
	if (ref($r)) {
	if ($ipheader) {
	$ip = $r->headers_in->{$ipheader};
	}
	$xfor = $r->headers_in->{'X-Forwarded-For'};
	} else {
	if ($ipheader) {
	$ip = $ENV{'HTTP_'.uc($ipheader)};
	}
	$xfor = $ENV{'HTTP_X_FORWARDED_FOR'};
	}
	if (($ip eq '') && ($xfor ne '')) {
	foreach my $poss_ip (reverse(split(/\s,\s/,$xfor))) {
	unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) {
	$ip = $poss_ip;
	last;
	}
	}
	}
	if ($ip ne '') {
	return $ip;
	}
	}
	}
	}
return $from_ip;	return $from_ip;
}	}

	sub get_proxy_settings {
	my ($dom_in_use) = @_;
	my %domdefaults = &Apache::lonnet::get_domain_defaults($dom_in_use);
	my $proxyinfo = {
	ipheader => $domdefaults{'waf_ipheader'},
	trusted => $domdefaults{'waf_trusted'},
	vpnint => $domdefaults{'waf_vpnint'},
	vpnext => $domdefaults{'waf_vpnext'},
	sslopt => $domdefaults{'waf_sslopt'},
	};
	return $proxyinfo;
	}

	sub ip_match {
	my ($ip,$pattern_str) = @_;
	$ip=Net::CIDR::cidrvalidate($ip);
	if ($ip) {
	return Net::CIDR::cidrlookup($ip,split(/\s,\s/,$pattern_str));
	}
	return;
	}

	sub get_proxy_alias {
	my ($lonid) = @_;
	if ($lonid eq '') {
	$lonid = $perlvar{'lonHostID'};
	}
	if (!defined(&hostname($lonid))) {
	return;
	}
	if ($lonid ne '') {
	my ($alias,$cached) = &is_cached_new('proxyalias',$lonid);
	if ($cached) {
	return $alias;
	}
	my $dom = &Apache::lonnet::host_domain($lonid);
	if ($dom ne '') {
	my $cachetime = 606024;
	my %domconfig =
	&Apache::lonnet::get_dom('configuration',['wafproxy'],$dom);
	my $alias;
	if (ref($domconfig{'wafproxy'}) eq 'HASH') {
	if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') {
	$alias = $domconfig{'wafproxy'}{'alias'}{$lonid};
	}
	}
	return &do_cache_new('proxyalias',$lonid,$alias,$cachetime);
	}
	}
	return;
	}

	sub use_proxy_alias {
	my ($r,$lonid) = @_;
	my $alias = &get_proxy_alias($lonid);
	if ($alias) {
	my $dom = &host_domain($lonid);
	if ($dom ne '') {
	my $proxyinfo = &get_proxy_settings($dom );
	my ($vpnint,$remote_ip);
	if (ref($proxyinfo) eq 'HASH') {
	$vpnint = $proxyinfo->{'vpnint'};
	if ($vpnint) {
	$remote_ip = &get_requestor_ip($r,1,1);
	}
	}
	unless ($vpnint && &ip_match($remote_ip,$vpnint)) {
	return $alias;
	}
	}
	}
	return;
	}

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

sub declutter {	sub declutter {
Line 13645 sub get_dns {	Line 14742 sub get_dns {
}	}
while (%alldns) {	while (%alldns) {
my ($dns) = sort { $b cmp $a } keys(%alldns);	my ($dns) = sort { $b cmp $a } keys(%alldns);
my $ua=new LWP::UserAgent;	my ($contents,@content);
$ua->timeout(30);	if ($dns eq Sys::Hostname::FQDN::fqdn()) {
my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");	my $command = (split('/',$url))[3];
my $response=$ua->request($request);	my ($dir,$file) = &parse_getdns_url($command,$url);
delete($alldns{$dns});	delete($alldns{$dns});
next if ($response->is_error());	next if (($dir eq '') \|\| ($file eq ''));
my @content = split("\n",$response->content);	if (open(my $config,'<',"$dir/$file")) {
unless ($nocache) {	@content = <$config>;
&do_cache_new('dns',$url,\@content,302460*60);	close($config);
	}
	if ($url eq '/adm/dns/loncapaCRL') {
	$contents = join('',@content);
	}
	} else {
	my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
	my $response = &LONCAPA::LWPReq::makerequest('',$request,'',\%perlvar,30,0);
	delete($alldns{$dns});
	next if ($response->is_error());
	if ($url eq '/adm/dns/loncapaCRL') {
	$contents = $response->content;
	} else {
	@content = split("\n",$response->content);
	}
	}
	if ($url eq '/adm/dns/loncapaCRL') {
	return &$func($contents);
	} else {
	unless ($nocache) {
	&do_cache_new('dns',$url,\@content,302460*60);
	}
	&$func(\@content,$hashref);
	return;
}	}
&$func(\@content,$hashref);
return;
}	}
my $which = (split('/',$url))[3];	my $which = (split('/',$url,4))[3];
&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");	if ($which eq 'loncapaCRL') {
if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {	my $diskfile = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
my @content = <$config>;	if (-e $diskfile) {
&$func(\@content,$hashref);	&logthis("unable to contact DNS, on disk file $diskfile not updated");
	} else {
	&logthis("unable to contact DNS, no on disk file $diskfile available");
	}
	} else {
	&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
	if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {
	my @content = <$config>;
	close($config);
	&$func(\@content,$hashref);
	}
}	}
return;	return;
}	}
Line 13691 sub parse_dns_checksums_tab {	Line 14819 sub parse_dns_checksums_tab {
if (ref($lines) eq 'ARRAY') {	if (ref($lines) eq 'ARRAY') {
chomp(@{$lines});	chomp(@{$lines});
my $version = shift(@{$lines});	my $version = shift(@{$lines});
if ($version eq $release) {	if ($version eq $release) {
foreach my $line (@{$lines}) {	foreach my $line (@{$lines}) {
my ($file,$version,$shasum) = split(/,/,$line);	my ($file,$version,$shasum) = split(/,/,$line);
if ($file =~ m{^/etc/httpd/conf}) {	if ($file =~ m{^/etc/httpd/conf}) {
Line 13723 sub fetch_dns_checksums {	Line 14851 sub fetch_dns_checksums {
return \%checksums;	return \%checksums;
}	}

	sub fetch_crl_pemfile {
	return &get_dns("/adm/dns/loncapaCRL",\&save_crl_pem,1,1);
	}

	sub save_crl_pem {
	my ($content) = @_;
	my ($msg,$hadchanges);
	if ($content ne '') {
	my $now = time;
	my $lonca = $perlvar{'lonCertificateDirectory'}.'/'.$perlvar{'lonnetCertificateAuthority'};
	my $tmpcrl = $tmpdir.'/'.$perlvar{'lonnetCertRevocationList'}.'_'.$now.'.'.$$.'.tmp';
	if (open(my $fh,'>',"$tmpcrl")) {
	print $fh $content;
	close($fh);
	if (-e $lonca) {
	if (open(PIPE,"openssl crl -in $tmpcrl -inform pem -CAfile $lonca -noout 2>&1 \|")) {
	my $check = <PIPE>;
	close(PIPE);
	chomp($check);
	if ($check eq 'verify OK') {
	my $dest = "$perlvar{'lonCertificateDirectory'}/$perlvar{'lonnetCertRevocationList'}";
	my $backup;
	if (-e $dest) {
	if (&File::Copy::move($dest,"$dest.bak")) {
	$backup = 'ok';
	}
	}
	if (&File::Copy::move($tmpcrl,$dest)) {
	$msg = 'ok';
	if ($backup) {
	my (%oldnums,%newnums);
	if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest.bak \|grep 'Serial Number' \|")) {
	while (<PIPE>) {
	$oldnums{(split(/:/))[1]} = 1;
	}
	close(PIPE);
	}
	if (open(PIPE, "openssl crl -inform PEM -text -noout -in $dest \|grep 'Serial Number' \|")) {
	while(<PIPE>) {
	$newnums{(split(/:/))[1]} = 1;
	}
	close(PIPE);
	}
	foreach my $key (sort {$b <=> $a } (keys(%newnums))) {
	unless (exists($oldnums{$key})) {
	$hadchanges = 1;
	last;
	}
	}
	unless ($hadchanges) {
	foreach my $key (sort {$b <=> $a } (keys(%oldnums))) {
	unless (exists($newnums{$key})) {
	$hadchanges = 1;
	last;
	}
	}
	}
	}
	}
	} else {
	unlink($tmpcrl);
	}
	} else {
	unlink($tmpcrl);
	}
	} else {
	unlink($tmpcrl);
	}
	}
	}
	return ($msg,$hadchanges);
	}

	sub parse_getdns_url {
	my ($command,$url) = @_;
	my $dir = $perlvar{'lonTabDir'};
	my $file;
	if ($command eq 'hosts') {
	$file = 'dns_hosts.tab';
	} elsif ($command eq 'domain') {
	$file = 'dns_domain.tab';
	} elsif ($command eq 'checksums') {
	my $version = (split('/',$url))[4];
	$file = "dns_checksums/$version.tab",
	} elsif ($command eq 'loncapaCRL') {
	$dir = $perlvar{'lonCertificateDirectory'};
	$file = $perlvar{'lonnetCertRevocationList'};
	}
	return ($dir,$file);
	}

# ------------------------------------------------------------ Read domain file	# ------------------------------------------------------------ Read domain file
{	{
my $loaded;	my $loaded;
Line 13845 sub fetch_dns_checksums {	Line 15064 sub fetch_dns_checksums {
&purge_remembered();	&purge_remembered();
&reset_domain_info();	&reset_domain_info();
&reset_hosts_ip_info();	&reset_hosts_ip_info();
	undef(%internetdom);
undef(%name_to_host);	undef(%name_to_host);
undef(%hostname);	undef(%hostname);
undef(%hostdom);	undef(%hostdom);
Line 13887 sub fetch_dns_checksums {	Line 15107 sub fetch_dns_checksums {
return %hostdom;	return %hostdom;
}	}

	sub all_host_intdom {
	&load_hosts_tab() if (!$loaded);
	return %internetdom;
	}

sub is_library {	sub is_library {
&load_hosts_tab() if (!$loaded);	&load_hosts_tab() if (!$loaded);

Line 14117 sub all_loncaparevs {	Line 15342 sub all_loncaparevs {
return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);	return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);
}	}

# ------------------------------------------------------- Read loncaparev table	# ---------------------------------------------------------- Read loncaparev table
{	{
sub load_loncaparevs {	sub load_loncaparevs {
if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {	if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {	if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
Line 14133 sub all_loncaparevs {	Line 15358 sub all_loncaparevs {
}	}
}	}

# ----------------------------------------------------- Read serverhostID table	# ---------------------------------------------------------- Read serverhostID table
{	{
sub load_serverhomeIDs {	sub load_serverhomeIDs {
if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {	if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
Line 14225 BEGIN {	Line 15450 BEGIN {
close($config);	close($config);
}	}

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

&load_loncaparevs();	&load_loncaparevs();

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

&load_serverhomeIDs();	&load_serverhomeIDs();

Line 14243 BEGIN {	Line 15468 BEGIN {
my $item = $token->[1];	my $item = $token->[1];
my $name = $token->[2]{'name'};	my $name = $token->[2]{'name'};
my $value = $token->[2]{'value'};	my $value = $token->[2]{'value'};
if ($item ne '' && $name ne '' && $value ne '') {	my $valuematch = $token->[2]{'valuematch'};
	my $namematch = $token->[2]{'namematch'};
	if ($item eq 'parameter') {
	if (($namematch ne '') \|\| (($name ne '') && ($value ne '' \|\| $valuematch ne ''))) {
	my $release = $parser->get_text();
	$release =~ s/(^\s\|\s$ )//gx;
	$needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release;
	}
	} elsif ($item ne '' && $name ne '') {
my $release = $parser->get_text();	my $release = $parser->get_text();
$release =~ s/(^\s\|\s$ )//gx;	$release =~ s/(^\s\|\s$ )//gx;
$needsrelease{$item.':'.$name.':'.$value} = $release;	$needsrelease{$item.':'.$name.':'.$value} = $release;
Line 14526 the answer, and also caches if there is	Line 15759 the answer, and also caches if there is

=item *	=item *
X<idget()>	X<idget()>
B<idget($udom,@ids)>: find the usernames behind a list of IDs	B<idget($udom,$idsref,$namespace)>: find the usernames behind either
(IDs are a unique resource in a domain, there must be only 1 ID per	a list of student/employee IDs or clicker IDs
username, and only 1 username per ID in a specific domain) (returns	(student/employee IDs are a unique resource in a domain, there must be
hash: id=>name,id=>name)	only 1 ID per username, and only 1 username per ID in a specific domain).
	clickerIDs are not necessarily unique, as students might share clickers.
	(returns hash: id=>name,id=>name)

=item *	=item *
X<idrget()>	X<idrget()>
Line 14538 usernames (returns hash: name=>id,name=>	Line 15773 usernames (returns hash: name=>id,name=>

=item *	=item *
X<idput()>	X<idput()>
B<idput($udom,%ids)>: store away a list of names and associated IDs	B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of
	names and associated student/employee IDs or clicker IDs.

	=item *
	X<iddel()>
	B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted
	student/employee ID or clicker ID username look-ups from domain.
	The homeserver ($uhome) and namespace ($namespace) are optional.
	If no $uhome is provided, it will be determined usig &homeserver()
	for each user. If no $namespace is provided, the default is ids.

	=item *
	X<updateclickers()>
	B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update
	clicker ID-to-username look-ups in clickers.db on library server.
	Permitted actions are add or del (i.e., add or delete). The
	clickers.db contains clickerID as keys (escaped), and each corresponding
	value is an escaped comma-separated list of usernames (for whom the
	library server is the homeserver), who registered that particular ID.
	If $critical is true, the update will be sent via &critical, otherwise
	&reply() will be used.

=item *	=item *
X<rolesinit()>	X<rolesinit()>
Line 14586 The first argument is required, all othe	Line 15841 The first argument is required, all othe

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

F: full access	F: full access
Line 14602 prevents recursive calls to &allowed.	Line 15857 prevents recursive calls to &allowed.
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.	B: access temporarily blocked because of a blocking event in a course.
	D: access blocked because access is required via session initiated via deep-link

=item *	=item *

Line 14654 provided for types, will default to retu	Line 15910 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 14895 values that are the resource value. I b	Line 16151 values that are the resource value. I b
versions are also returned.	versions are also returned.

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

=back	=back
Line 15065 condval($condidx) : value of condition i	Line 16321 condval($condidx) : value of condition i

=item *	=item *

metadata($uri,$what,$liburi,$prefix,$depthcount) : request a	metadata($uri,$what,$toolsymb,$liburi,$prefix,$depthcount) : request a
resource's metadata, $what should be either a specific key, or either	resource's metadata, $what should be either a specific key, or either
'keys' (to get a list of possible keys) or 'packages' to get a list of	'keys' (to get a list of possible keys) or 'packages' to get a list of
packages that this resource currently uses, the last 3 arguments are only used internally for recursive metadata.	packages that this resource currently uses, the last 3 arguments are
	only used internally for recursive metadata.

	the toolsymb is only used where the uri is for an external tool (for which
	the uri as well as the symb are guaranteed to be unique).

this function automatically caches all requests	this function automatically caches all requests except any made recursively
	to retrieve a list of metadata keys for an imported library file ($liburi is
	defined).

=item *	=item *

Line 15080 will be stored for query	Line 16342 will be stored for query

=item *	=item *

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

Args: filename is the filename (including path) for the file for which a symb	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	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	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	(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	a randompick); ignorecachednull, if true will prevent a symb of '' being
returned if $env{$cache_str} is defined as ''; checkforblock if true will	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	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	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	ref to a hash, which, as a side effect, will be populated with all possible
symbs (content blocking not tested).	symbs (content blocking not tested).

returns the data handle	returns the data handle

=item *	=item *
Line 15103 and is a possible symb for the URL in $t	Line 16365 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 15158 expirespread($uname,$udom,$stype,$usymb)	Line 16420 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 15172 when viewing in course context.	Line 16434 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 15194 homeserver.	Line 16456 homeserver.

=item *	=item *

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

=item *	=item *

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

=item *	=item *
Line 15345 server ($udom and $uhome are optional)	Line 16607 server ($udom and $uhome are optional)

=item *	=item *

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

Line 15379 requestcourses: ability to request cours	Line 16641 requestcourses: ability to request cours
=over	=over

=item	=item
official, unofficial, community, textbook	official, unofficial, community, textbook, placement

=back	=back

Line 15400 for course's uploaded content.	Line 16662 for course's uploaded content.
=over	=over

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

=back	=back

Line 15411 on your servers.	Line 16673 on your servers.

=over	=over

=item	=item
remotesessions, hostedsessions	remotesessions, hostedsessions

=back	=back
Line 15419 remotesessions, hostedsessions	Line 16681 remotesessions, hostedsessions
=back	=back

In cases where a domain coordinator has never used the "Set Domain Configuration"	In cases where a domain coordinator has never used the "Set Domain Configuration"
utility to create a configuration.db file on a domain's primary library server	utility to create a configuration.db file on a domain's primary library server
only the following domain defaults: auth_def, auth_arg_def, lang_def	only the following domain defaults: auth_def, auth_arg_def, lang_def
-- corresponding values are authentication type (internal, krb4, krb5,	-- corresponding values are authentication type (internal, krb4, krb5,
or localauth), initial password or a kerberos realm, language (e.g., en-us) --	or localauth), initial password or a kerberos realm, language (e.g., en-us) --
will be available. Values are retrieved from cache (if current), unless the	will be available. Values are retrieved from cache (if current), unless the
optional $ignore_cache arg is true, or from domain's configuration.db (if available),	optional $ignore_cache arg is true, or from domain's configuration.db (if available),
or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.	or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
Line 15851 Returns:	Line 17113 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 15863 Args: (first three required; six others	Line 17125 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.1.1172.2.118.2.14
changed lines
	Added in v.1.1462