--- loncom/lonnet/perl/lonnet.pm 2007/06/25 23:30:27 1.890.2.1
+++ loncom/lonnet/perl/lonnet.pm 2007/10/01 21:06:04 1.915
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.890.2.1 2007/06/25 23:30:27 albertel Exp $
+# $Id: lonnet.pm,v 1.915 2007/10/01 21:06:04 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -214,6 +214,24 @@ sub reply {
# ----------------------------------------------------------- Send USR1 to lonc
sub reconlonc {
+ my ($lonid) = @_;
+ my $hostname = &hostname($lonid);
+ if ($lonid) {
+ my $peerfile="$perlvar{'lonSockDir'}/$hostname";
+ if ($hostname && -e $peerfile) {
+ &logthis("Trying to reconnect lonc for $lonid ($hostname)");
+ my $client=IO::Socket::UNIX->new(Peer => $peerfile,
+ Type => SOCK_STREAM,
+ Timeout => 10);
+ if ($client) {
+ print $client ("reset_retries\n");
+ my $answer=<$client>;
+ #reset just this one.
+ }
+ }
+ return;
+ }
+
&logthis("Trying to reconnect lonc");
my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
if (open(my $fh,"<$loncfile")) {
@@ -302,7 +320,10 @@ sub convert_and_load_session_env {
my ($lonidsdir,$handle)=@_;
my @profile;
{
- open(my $idf,"$lonidsdir/$handle.id");
+ open(my $idf,'+<',"$lonidsdir/$handle.id");
+ if (!$idf) {
+ return 0;
+ }
flock($idf,LOCK_SH);
@profile=<$idf>;
close($idf);
@@ -341,7 +362,10 @@ sub transfer_profile_to_env {
my $convert;
{
- open(my $idf,"$lonidsdir/$handle.id");
+ open(my $idf,'+<',"$lonidsdir/$handle.id");
+ if (!$idf) {
+ return;
+ }
flock($idf,LOCK_SH);
if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
&GDBM_READER(),0640)) {
@@ -407,8 +431,9 @@ sub appenv {
$env{$key}=$newenv{$key};
}
}
- open(my $env_file,$env{'user.environment'});
- if (&timed_flock($env_file,LOCK_EX)
+ open(my $env_file,'+<',$env{'user.environment'});
+ if ($env_file
+ && &timed_flock($env_file,LOCK_EX)
&&
tie(my %disk_env,'GDBM_File',$env{'user.environment'},
(&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
@@ -428,16 +453,17 @@ sub delenv {
"Attempt to delete from environment ".$delthis);
return 'error';
}
- open(my $env_file,$env{'user.environment'});
- if (&timed_flock($env_file,LOCK_EX)
+ open(my $env_file,'+<',$env{'user.environment'});
+ if ($env_file
+ && &timed_flock($env_file,LOCK_EX)
&&
tie(my %disk_env,'GDBM_File',$env{'user.environment'},
(&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
foreach my $key (keys(%disk_env)) {
if ($key=~/^$delthis/) {
- delete($env{$key});
- delete($disk_env{$key});
- }
+ delete($env{$key});
+ delete($disk_env{$key});
+ }
}
untie(%disk_env);
}
@@ -564,6 +590,27 @@ sub compare_server_load {
}
return ($spare_server,$lowest_load);
}
+
+# --------------------------- ask offload servers if user already has a session
+sub find_existing_session {
+ my ($udom,$uname) = @_;
+ foreach my $try_server (@{ $spareid{'primary'} },
+ @{ $spareid{'default'} }) {
+ return $try_server if (&has_user_session($try_server, $udom, $uname));
+ }
+ return;
+}
+
+# -------------------------------- ask if server already has a session for user
+sub has_user_session {
+ my ($lonid,$udom,$uname) = @_;
+ my $result = &reply(join(':','userhassession',
+ map {&escape($_)} ($udom,$uname)),$lonid);
+ return 1 if ($result eq 'ok');
+
+ return 0;
+}
+
# --------------------------------------------- Try to change a user's password
sub changepass {
@@ -838,6 +885,194 @@ sub is_domainimage {
return;
}
+sub inst_directory_query {
+ my ($srch) = @_;
+ my $udom = $srch->{'srchdomain'};
+ my %results;
+ my $homeserver = &domain($udom,'primary');
+ my $outcome;
+ if ($homeserver ne '') {
+ my $queryid=&reply("querysend:instdirsearch:".
+ &escape($srch->{'srchby'}).':'.
+ &escape($srch->{'srchterm'}).':'.
+ &escape($srch->{'srchtype'}),$homeserver);
+ my $host=&hostname($homeserver);
+ if ($queryid !~/^\Q$host\E\_/) {
+ &logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
+ return;
+ }
+ my $response = &get_query_reply($queryid);
+ my $maxtries = 5;
+ my $tries = 1;
+ while (($response=~/^timeout/) && ($tries < $maxtries)) {
+ $response = &get_query_reply($queryid);
+ $tries ++;
+ }
+
+ if (!&error($response) && $response ne 'refused') {
+ if ($response eq 'unavailable') {
+ $outcome = $response;
+ } else {
+ $outcome = 'ok';
+ my @matches = split(/\n/,$response);
+ foreach my $match (@matches) {
+ my ($key,$value) = split(/=/,$match);
+ $results{&unescape($key).':'.$udom} = &thaw_unescape($value);
+ }
+ }
+ }
+ }
+ return ($outcome,%results);
+}
+
+sub usersearch {
+ my ($srch) = @_;
+ my $dom = $srch->{'srchdomain'};
+ my %results;
+ my %libserv = &all_library();
+ my $query = 'usersearch';
+ foreach my $tryserver (keys(%libserv)) {
+ if (&host_domain($tryserver) eq $dom) {
+ my $host=&hostname($tryserver);
+ my $queryid=
+ &reply("querysend:".&escape($query).':'.
+ &escape($srch->{'srchby'}).':'.
+ &escape($srch->{'srchtype'}).':'.
+ &escape($srch->{'srchterm'}),$tryserver);
+ if ($queryid !~/^\Q$host\E\_/) {
+ &logthis('usersearch: invalid queryid: '.$queryid.' for host: '.$host.'in domain '.$dom.' and server: '.$tryserver);
+ next;
+ }
+ my $reply = &get_query_reply($queryid);
+ my $maxtries = 1;
+ my $tries = 1;
+ while (($reply=~/^timeout/) && ($tries < $maxtries)) {
+ $reply = &get_query_reply($queryid);
+ $tries ++;
+ }
+ if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
+ &logthis('usersrch error: '.$reply.' for '.$dom.' - searching for : '.$srch->{'srchterm'}.' by '.$srch->{'srchby'}.' ('.$srch->{'srchtype'}.') - maxtries: '.$maxtries.' tries: '.$tries);
+ } else {
+ my @matches;
+ if ($reply =~ /\n/) {
+ @matches = split(/\n/,$reply);
+ } else {
+ @matches = split(/\&/,$reply);
+ }
+ foreach my $match (@matches) {
+ my ($uname,$udom,%userhash);
+ foreach my $entry (split(/:/,$match)) {
+ my ($key,$value) =
+ map {&unescape($_);} split(/=/,$entry);
+ $userhash{$key} = $value;
+ if ($key eq 'username') {
+ $uname = $value;
+ } elsif ($key eq 'domain') {
+ $udom = $value;
+ }
+ }
+ $results{$uname.':'.$udom} = \%userhash;
+ }
+ }
+ }
+ }
+ return %results;
+}
+
+sub get_instuser {
+ my ($udom,$uname,$id) = @_;
+ my $homeserver = &domain($udom,'primary');
+ my ($outcome,%results);
+ if ($homeserver ne '') {
+ my $queryid=&reply("querysend:getinstuser:".&escape($uname).':'.
+ &escape($id).':'.&escape($udom),$homeserver);
+ my $host=&hostname($homeserver);
+ if ($queryid !~/^\Q$host\E\_/) {
+ &logthis('get_instuser invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
+ return;
+ }
+ my $response = &get_query_reply($queryid);
+ my $maxtries = 5;
+ my $tries = 1;
+ while (($response=~/^timeout/) && ($tries < $maxtries)) {
+ $response = &get_query_reply($queryid);
+ $tries ++;
+ }
+ if (!&error($response) && $response ne 'refused') {
+ if ($response eq 'unavailable') {
+ $outcome = $response;
+ } else {
+ $outcome = 'ok';
+ my @matches = split(/\n/,$response);
+ foreach my $match (@matches) {
+ my ($key,$value) = split(/=/,$match);
+ $results{&unescape($key)} = &thaw_unescape($value);
+ }
+ }
+ }
+ }
+ my %userinfo;
+ if (ref($results{$uname}) eq 'HASH') {
+ %userinfo = %{$results{$uname}};
+ }
+ return ($outcome,%userinfo);
+}
+
+sub inst_rulecheck {
+ my ($udom,$uname,$rules) = @_;
+ my %returnhash;
+ if ($udom ne '') {
+ if (ref($rules) eq 'ARRAY') {
+ @{$rules} = map {&escape($_);} (@{$rules});
+ my $rulestr = join(':',@{$rules});
+ my $homeserver=&domain($udom,'primary');
+ if (($homeserver ne '') && ($homeserver ne 'no_host')) {
+ my $response=&unescape(&reply('instrulecheck:'.&escape($udom).':'.
+ &escape($uname).':'.$rulestr,
+ $homeserver));
+ if ($response ne 'refused') {
+ my @pairs=split(/\&/,$response);
+ foreach my $item (@pairs) {
+ my ($key,$value)=split(/=/,$item,2);
+ $key = &unescape($key);
+ next if ($key =~ /^error: 2 /);
+ $returnhash{$key}=&thaw_unescape($value);
+ }
+ }
+ }
+ }
+ }
+ return %returnhash;
+}
+
+sub inst_userrules {
+ my ($udom) = @_;
+ my (%ruleshash,@ruleorder);
+ if ($udom ne '') {
+ my $homeserver=&domain($udom,'primary');
+ if (($homeserver ne '') && ($homeserver ne 'no_host')) {
+ my $response=&reply('instuserrules:'.&escape($udom),
+ $homeserver);
+ if (($response ne 'refused') && ($response ne 'error') &&
+ ($response ne 'no_such_host')) {
+ my ($hashitems,$orderitems) = split(/:/,$response);
+ my @pairs=split(/\&/,$hashitems);
+ foreach my $item (@pairs) {
+ my ($key,$value)=split(/=/,$item,2);
+ $key = &unescape($key);
+ next if ($key =~ /^error: 2 /);
+ $ruleshash{$key}=&thaw_unescape($value);
+ }
+ my @esc_order = split(/\&/,$orderitems);
+ foreach my $item (@esc_order) {
+ push(@ruleorder,&unescape($item));
+ }
+ }
+ }
+ }
+ return (\%ruleshash,\@ruleorder);
+}
+
# --------------------------------------------------- Assign a key to a student
sub assign_access_key {
@@ -1114,8 +1349,10 @@ sub do_cache_new {
$time=600;
}
if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
- if (!($memcache->set($id,$setvalue,$time))) {
+ my $result = $memcache->set($id,$setvalue,$time);
+ if (! $result) {
&logthis("caching of id -> $id failed");
+ $memcache->disconnect_all();
}
# need to make a copy of $value
#&make_room($id,$value,$debug);
@@ -1378,7 +1615,7 @@ sub ssi {
my $request;
$form{'no_update_last_known'}=1;
-
+ &Apache::lonenc::check_encrypt(\$fn);
if (%form) {
$request=new HTTP::Request('POST',&absolute_url().$fn);
$request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys %form));
@@ -1990,7 +2227,7 @@ sub flushcourselogs {
#
my %domrolebuffer = ();
foreach my $entry (keys %domainrolehash) {
- my ($role,$uname,$udom,$runame,$rudom,$rsec)=split/:/,$entry;
+ my ($role,$uname,$udom,$runame,$rudom,$rsec)=split(/:/,$entry);
if ($domrolebuffer{$rudom}) {
$domrolebuffer{$rudom}.='&'.&escape($entry).
'='.&escape($domainrolehash{$entry});
@@ -2095,6 +2332,14 @@ sub userrolelog {
{$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
=$tend.':'.$tstart;
}
+ if (($env{'request.role'} =~ /dc\./) &&
+ (($trole=~/^au/) || ($trole=~/^in/) ||
+ ($trole=~/^cc/) || ($trole=~/^ep/) ||
+ ($trole=~/^cr/) || ($trole=~/^ta/))) {
+ $userrolehash
+ {$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
+ =$tend.':'.$tstart;
+ }
if (($trole=~/^dc/) || ($trole=~/^ad/) ||
($trole=~/^li/) || ($trole=~/^li/) ||
($trole=~/^au/) || ($trole=~/^dg/) ||
@@ -3786,26 +4031,40 @@ sub customaccess {
$ucrs = &LONCAPA::clean_username($ucrs);
my $access=0;
foreach my $right (split(/\s*\,\s*/,&metadata($uri,'rule_rights'))) {
- my ($effect,$realm,$role)=split(/\:/,$right);
- if ($role) {
- if ($role ne $urole) { next; }
- }
- foreach my $scope (split(/\s*\,\s*/,$realm)) {
- my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
- if ($tdom) {
- if ($tdom ne $udom) { next; }
- }
- if ($tcrs) {
- if ($tcrs ne $ucrs) { next; }
- }
- if ($tsec) {
- if ($tsec ne $usec) { next; }
- }
- $access=($effect eq 'allow');
- last;
- }
- if ($realm eq '' && $role eq '') {
- $access=($effect eq 'allow');
+ my ($effect,$realm,$role,$type)=split(/\:/,$right);
+ if ($type eq 'user') {
+ foreach my $scope (split(/\s*\,\s*/,$realm)) {
+ my ($tdom,$tuname)=split(m{/},$scope);
+ if ($tdom) {
+ if ($tdom ne $env{'user.domain'}) { next; }
+ }
+ if ($tuname) {
+ if ($tuname ne $env{'user.name'}) { next; }
+ }
+ $access=($effect eq 'allow');
+ last;
+ }
+ } else {
+ if ($role) {
+ if ($role ne $urole) { next; }
+ }
+ foreach my $scope (split(/\s*\,\s*/,$realm)) {
+ my ($tdom,$tcrs,$tsec)=split(/\_/,$scope);
+ if ($tdom) {
+ if ($tdom ne $udom) { next; }
+ }
+ if ($tcrs) {
+ if ($tcrs ne $ucrs) { next; }
+ }
+ if ($tsec) {
+ if ($tsec ne $usec) { next; }
+ }
+ $access=($effect eq 'allow');
+ last;
+ }
+ if ($realm eq '' && $role eq '') {
+ $access=($effect eq 'allow');
+ }
}
}
return $access;
@@ -4334,6 +4593,23 @@ sub update_portfolio_table {
return $reply;
}
+# -------------------------- Update MySQL allusers table
+
+sub update_allusers_table {
+ my ($uname,$udom,$names) = @_;
+ my $homeserver = &homeserver($uname,$udom);
+ my $queryid=
+ &reply('querysend:allusers:'.&escape($uname).':'.&escape($udom).':'.
+ 'lastname='.&escape($names->{'lastname'}).'%%'.
+ 'firstname='.&escape($names->{'firstname'}).'%%'.
+ 'middlename='.&escape($names->{'middlename'}).'%%'.
+ 'generation='.&escape($names->{'generation'}).'%%'.
+ 'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
+ 'id='.&escape($names->{'id'}),$homeserver);
+ my $reply = &get_query_reply($queryid);
+ return $reply;
+}
+
# ------- Request retrieval of institutional classlists for course(s)
sub fetch_enrollment_query {
@@ -4368,7 +4644,7 @@ sub fetch_enrollment_query {
if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
&logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
} else {
- my @responses = split/:/,$reply;
+ my @responses = split(/:/,$reply);
if ($homeserver eq $perlvar{'lonHostID'}) {
foreach my $line (@responses) {
my ($key,$value) = split(/=/,$line,2);
@@ -4411,8 +4687,8 @@ sub get_query_reply {
sleep 2;
if (-e $replyfile.'.end') {
if (open(my $fh,$replyfile)) {
- $reply.=<$fh>;
- close($fh);
+ $reply = join('',<$fh>);
+ close($fh);
} else { return 'error: reply_file_error'; }
return &unescape($reply);
}
@@ -4478,7 +4754,7 @@ sub auto_get_sections {
my @secs = ();
my $response=&unescape(&reply('autogetsections:'.$inst_coursecode.':'.$cdom,$homeserver));
unless ($response eq 'refused') {
- @secs = split/:/,$response;
+ @secs = split(/:/,$response);
}
return @secs;
}
@@ -4517,7 +4793,7 @@ sub auto_create_password {
if ($response eq 'refused') {
$authchk = 'refused';
} else {
- ($authparam,$create_passwd,$authchk) = split/:/,$response;
+ ($authparam,$create_passwd,$authchk) = split(/:/,$response);
}
}
return ($authparam,$create_passwd,$authchk);
@@ -4625,7 +4901,7 @@ sub auto_instcode_format {
$response=&reply('autoinstcodeformat:'.$codedom.':'.$courses,$server);
if ($response !~ /(con_lost|error|no_such_host|refused)/) {
my ($codes_str,$codetitles_str,$cat_titles_str,$cat_order_str) =
- split/:/,$response;
+ split(/:/,$response);
%{$codes} = (%{$codes},&str2hash($codes_str));
push(@{$codetitles},&str2array($codetitles_str));
%{$cat_titles} = (%{$cat_titles},&str2hash($cat_titles_str));
@@ -5005,7 +5281,8 @@ sub modifyuser {
}
# -------------------------------------------------------------- Add names, etc
my @tmp=&get('environment',
- ['firstname','middlename','lastname','generation'],
+ ['firstname','middlename','lastname','generation','id',
+ 'permanentemail'],
$udom,$uname);
my %names;
if ($tmp[0] =~ m/^error:.*/) {
@@ -5027,8 +5304,10 @@ sub modifyuser {
$names{'critnotification'} = $email;
$names{'permanentemail'} = $email; }
}
+ if ($uid) { $names{'id'} = $uid; }
my $reply = &put('environment', \%names, $udom,$uname);
if ($reply ne 'ok') { return 'error: '.$reply; }
+ my $sqlresult = &update_allusers_table($uname,$udom,\%names);
&devalidate_cache_new('namescache',$uname.':'.$udom);
&logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
$umode.', '.$first.', '.$middle.', '.
@@ -6172,6 +6451,12 @@ sub EXT {
my ($map) = &decode_symb($symbparm);
return &symbread($map);
}
+ if ($space eq 'filename') {
+ if ($symbparm) {
+ return &clutter((&decode_symb($symbparm))[2]);
+ }
+ return &hreflocation('',$env{'request.filename'});
+ }
my ($section, $group, @groups);
my ($courselevelm,$courselevel);
@@ -6545,10 +6830,11 @@ sub metadata {
# only ws inside the tag, and not in default, so use default
# as value
$metaentry{':'.$unikey}=$default;
- } else {
- # either something interesting inside the tag or default
- # uninteresting
+ } elsif ( $internaltext =~ /\S/ ) {
+ # something interesting inside the tag
$metaentry{':'.$unikey}=$internaltext;
+ } else {
+ # no interesting values, don't set a default
}
# end of not-a-package not-a-library import
}
@@ -6688,12 +6974,15 @@ sub gettitle {
}
my ($map,$resid,$url)=&decode_symb($symb);
my $title='';
- my %bighash;
- if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
- &GDBM_READER(),0640)) {
- my $mapid=$bighash{'map_pc_'.&clutter($map)};
- $title=$bighash{'title_'.$mapid.'.'.$resid};
- untie %bighash;
+ if (!$map && $resid == 0 && $url =~/default\.sequence$/) {
+ $title = $env{'course.'.$env{'request.course.id'}.'.description'};
+ } else {
+ if (tie(my %bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
+ &GDBM_READER(),0640)) {
+ my $mapid=$bighash{'map_pc_'.&clutter($map)};
+ $title=$bighash{'title_'.$mapid.'.'.$resid};
+ untie(%bighash);
+ }
}
$title=~s/\&colon\;/\:/gs;
if ($title) {
@@ -7066,7 +7355,7 @@ sub getCODE {
sub rndseed {
my ($symb,$courseid,$domain,$username)=@_;
my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
- if (!$symb) {
+ if (!defined($symb)) {
unless ($symb=$wsymb) { return time; }
}
if (!$courseid) { $courseid=$wcourseid; }
@@ -7572,6 +7861,9 @@ sub hreflocation {
$file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
-/uploaded/$1/$2/-x;
}
+ if ($file=~ m{^/userfiles/}) {
+ $file =~ s{^/userfiles/}{/uploaded/};
+ }
return $file;
}
@@ -7852,6 +8144,7 @@ sub get_dns {
}
sub reset_hosts_info {
+ &purge_remembered();
&reset_domain_info();
&reset_hosts_ip_info();
undef(%name_to_host);
@@ -7977,6 +8270,7 @@ sub get_dns {
sub get_iphost {
my ($ignore_cache) = @_;
+
if (!$ignore_cache) {
if (%iphost) {
return %iphost;
@@ -7990,16 +8284,31 @@ sub get_dns {
return %iphost;
}
}
+
+ # get yesterday's info for fallback
+ my %old_name_to_ip;
+ my ($ip_info,$cached)=
+ &Apache::lonnet::is_cached_new('iphost','iphost');
+ if ($cached) {
+ %old_name_to_ip = %{$ip_info->[1]};
+ }
+
my %name_to_host = &all_names();
foreach my $name (keys(%name_to_host)) {
my $ip;
if (!exists($name_to_ip{$name})) {
$ip = gethostbyname($name);
if (!$ip || length($ip) ne 4) {
- &logthis("Skipping name $name no IP found");
- next;
+ if (defined($old_name_to_ip{$name})) {
+ $ip = $old_name_to_ip{$name};
+ &logthis("Can't find $name defaulting to old $ip");
+ } else {
+ &logthis("Name $name no IP found");
+ next;
+ }
+ } else {
+ $ip=inet_ntoa($ip);
}
- $ip=inet_ntoa($ip);
$name_to_ip{$name} = $ip;
} else {
$ip = $name_to_ip{$name};
@@ -8011,7 +8320,7 @@ sub get_dns {
}
&Apache::lonnet::do_cache_new('iphost','iphost',
[\%iphost,\%name_to_ip,\%lonid_to_ip],
- 24*60*60);
+ 48*60*60);
return %iphost;
}
@@ -8400,7 +8709,7 @@ explanation of a user role term
get_my_roles($uname,$udom,$context,$types,$roles,$roledoms) :
All arguments are optional. Returns a hash of a roles, either for
co-author/assistant author roles for a user's Construction Space
-(default), or if $context is 'user', roles for the user himself,
+(default), or if $context is 'userroles', roles for the user himself,
In the hash, keys are set to colon-sparated $uname,$udom,and $role,
and value is set to colon-separated start and end times for the role.
If no username and domain are specified, will default to current