--- loncom/lonnet/perl/lonnet.pm 2011/02/24 23:55:58 1.1104
+++ loncom/lonnet/perl/lonnet.pm 2011/11/09 13:14:20 1.1145
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.1104 2011/02/24 23:55:58 raeburn Exp $
+# $Id: lonnet.pm,v 1.1145 2011/11/09 13:14:20 bisitz Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -76,7 +76,8 @@ use HTTP::Date;
use Image::Magick;
use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
- $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease);
+ $_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
+ %managerstab);
my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
%userrolehash, $processmarker, $dumpcount, %coursedombuf,
@@ -95,6 +96,7 @@ use Math::Random;
use File::MMagic;
use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;
+
use File::Copy;
my $readit;
@@ -196,6 +198,29 @@ sub get_server_timezone {
}
}
+sub get_server_distarch {
+ my ($lonhost,$ignore_cache) = @_;
+ if (defined($lonhost)) {
+ if (!defined(&hostname($lonhost))) {
+ return;
+ }
+ my $cachetime = 12*3600;
+ if (!$ignore_cache) {
+ my ($distarch,$cached)=&is_cached_new('serverdistarch',$lonhost);
+ if (defined($cached)) {
+ return $distarch;
+ }
+ }
+ my $rep = &reply('serverdistarch',$lonhost);
+ unless ($rep eq 'unknown_command' || $rep eq 'no_such_host' ||
+ $rep eq 'con_lost' || $rep eq 'rejected' || $rep eq 'refused' ||
+ $rep eq '') {
+ return &do_cache_new('serverdistarch',$lonhost,$rep,$cachetime);
+ }
+ }
+ return;
+}
+
sub get_server_loncaparev {
my ($dom,$lonhost,$ignore_cache,$caller) = @_;
if (defined($lonhost)) {
@@ -282,6 +307,52 @@ sub get_server_homeID {
return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
}
+sub get_remote_globals {
+ my ($lonhost,$whathash,$ignore_cache) = @_;
+ my ($result,%returnhash,%whatneeded);
+ if (ref($whathash) eq 'HASH') {
+ foreach my $what (sort(keys(%{$whathash}))) {
+ my $hashid = $lonhost.'-'.$what;
+ my ($response,$cached);
+ unless ($ignore_cache) {
+ ($response,$cached)=&is_cached_new('lonnetglobal',$hashid);
+ }
+ if (defined($cached)) {
+ $returnhash{$what} = $response;
+ } else {
+ $whatneeded{$what} = 1;
+ }
+ }
+ if (keys(%whatneeded) == 0) {
+ $result = 'ok';
+ } else {
+ my $requested = &freeze_escape(\%whatneeded);
+ my $rep=&reply('readlonnetglobal:'.$requested,$lonhost);
+ if (($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);
+ my $hashid = $lonhost.'-'.$what;
+ $returnhash{$what}=&thaw_unescape($value);
+ &do_cache_new('lonnetglobal',$hashid,$returnhash{$what},600);
+ }
+ }
+ }
+ }
+ return ($result,\%returnhash);
+}
+
+sub remote_devalidate_cache {
+ my ($lonhost,$name,$id) = @_;
+ my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);
+ return $response;
+}
+
# -------------------------------------------------- Non-critical communication
sub subreply {
my ($cmd,$server)=@_;
@@ -749,26 +820,33 @@ sub spareserver {
my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
$remotesessions = $udomdefaults{'remotesessions'};
}
- foreach my $try_server (@{ $spareid{'primary'} }) {
- if ($uint_dom) {
- next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
- $try_server));
+ my $spareshash = &this_host_spares($udom);
+ if (ref($spareshash) eq 'HASH') {
+ if (ref($spareshash->{'primary'}) eq 'ARRAY') {
+ foreach my $try_server (@{ $spareshash->{'primary'} }) {
+ if ($uint_dom) {
+ next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
+ $try_server));
+ }
+ ($spare_server, $lowest_load) =
+ &compare_server_load($try_server, $spare_server, $lowest_load);
+ }
}
- ($spare_server, $lowest_load) =
- &compare_server_load($try_server, $spare_server, $lowest_load);
- }
-
- my $found_server = ($spare_server ne '' && $lowest_load < 100);
- if (!$found_server) {
- foreach my $try_server (@{ $spareid{'default'} }) {
- if ($uint_dom) {
- next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
- $try_server));
- }
- ($spare_server, $lowest_load) =
- &compare_server_load($try_server, $spare_server, $lowest_load);
- }
+ my $found_server = ($spare_server ne '' && $lowest_load < 100);
+
+ if (!$found_server) {
+ if (ref($spareshash->{'default'}) eq 'ARRAY') {
+ foreach my $try_server (@{ $spareshash->{'default'} }) {
+ if ($uint_dom) {
+ next unless (&spare_can_host($udom,$uint_dom,
+ $remotesessions,$try_server));
+ }
+ ($spare_server, $lowest_load) =
+ &compare_server_load($try_server, $spare_server, $lowest_load);
+ }
+ }
+ }
}
if (!$want_server_name) {
@@ -793,7 +871,7 @@ sub compare_server_load {
my $userloadans = &reply('userload',$try_server);
if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
- return; #didn't get a number from the server
+ return ($spare_server, $lowest_load); #didn't get a number from the server
}
my $load;
@@ -819,9 +897,18 @@ sub compare_server_load {
# --------------------------- ask offload servers if user already has a session
sub find_existing_session {
my ($udom,$uname) = @_;
- foreach my $try_server (@{ $spareid{'primary'} },
- @{ $spareid{'default'} }) {
- return $try_server if (&has_user_session($try_server, $udom, $uname));
+ my $spareshash = &this_host_spares($udom);
+ if (ref($spareshash) eq 'HASH') {
+ if (ref($spareshash->{'primary'}) eq 'ARRAY') {
+ foreach my $try_server (@{ $spareshash->{'primary'} }) {
+ return $try_server if (&has_user_session($try_server, $udom, $uname));
+ }
+ }
+ if (ref($spareshash->{'default'}) eq 'ARRAY') {
+ foreach my $try_server (@{ $spareshash->{'default'} }) {
+ return $try_server if (&has_user_session($try_server, $udom, $uname));
+ }
+ }
}
return;
}
@@ -839,22 +926,38 @@ sub has_user_session {
# --------- determine least loaded server in a user's domain which allows login
sub choose_server {
- my ($udom) = @_;
+ my ($udom,$checkloginvia) = @_;
my %domconfhash = &Apache::loncommon::get_domainconf($udom);
my %servers = &get_servers($udom);
my $lowest_load = 30000;
- my ($login_host,$hostname);
+ my ($login_host,$hostname,$portal_path);
foreach my $lonhost (keys(%servers)) {
- my $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
- if ($loginvia eq '') {
+ my $loginvia;
+ if ($checkloginvia) {
+ $loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
+ if ($loginvia) {
+ my ($server,$path) = split(/:/,$loginvia);
+ ($login_host, $lowest_load) =
+ &compare_server_load($server, $login_host, $lowest_load);
+ if ($login_host eq $server) {
+ $portal_path = $path;
+ }
+ } else {
+ ($login_host, $lowest_load) =
+ &compare_server_load($lonhost, $login_host, $lowest_load);
+ if ($login_host eq $lonhost) {
+ $portal_path = '';
+ }
+ }
+ } else {
($login_host, $lowest_load) =
- &compare_server_load($lonhost, $login_host, $lowest_load);
+ &compare_server_load($lonhost, $login_host, $lowest_load);
}
}
if ($login_host ne '') {
- $hostname = $servers{$login_host};
+ $hostname = &hostname($login_host);
}
- return ($login_host,$hostname);
+ return ($login_host,$hostname,$portal_path);
}
# --------------------------------------------- Try to change a user's password
@@ -995,15 +1098,19 @@ sub can_host_session {
}
if ($canhost) {
if (ref($hostedsessions) eq 'HASH') {
+ my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
+ my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
- if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'excludedomain'}})) {
+ if (($uint_dom ne '') &&
+ (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'excludedomain'}}))) {
$canhost = 0;
} else {
$canhost = 1;
}
}
if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
- if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'includedomain'}})) {
+ if (($uint_dom ne '') &&
+ (grep(/^\Q$uint_dom\E$/,@{$hostedsessions->{'includedomain'}}))) {
$canhost = 1;
} else {
$canhost = 0;
@@ -1034,6 +1141,302 @@ sub spare_can_host {
return $canhost;
}
+sub this_host_spares {
+ my ($dom) = @_;
+ my ($dom_in_use,$lonhost_in_use,$result);
+ my @hosts = ¤t_machine_ids();
+ foreach my $lonhost (@hosts) {
+ if (&host_domain($lonhost) eq $dom) {
+ $dom_in_use = $dom;
+ $lonhost_in_use = $lonhost;
+ last;
+ }
+ }
+ if ($dom_in_use ne '') {
+ $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
+ }
+ if (ref($result) ne 'HASH') {
+ $lonhost_in_use = $perlvar{'lonHostID'};
+ $dom_in_use = &host_domain($lonhost_in_use);
+ $result = &spares_for_offload($dom_in_use,$lonhost_in_use);
+ if (ref($result) ne 'HASH') {
+ $result = \%spareid;
+ }
+ }
+ return $result;
+}
+
+sub spares_for_offload {
+ my ($dom_in_use,$lonhost_in_use) = @_;
+ my ($result,$cached)=&is_cached_new('spares',$dom_in_use);
+ if (defined($cached)) {
+ return $result;
+ } else {
+ my $cachetime = 60*60*24;
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['usersessions'],$dom_in_use);
+ if (ref($domconfig{'usersessions'}) eq 'HASH') {
+ if (ref($domconfig{'usersessions'}{'spares'}) eq 'HASH') {
+ if (ref($domconfig{'usersessions'}{'spares'}{$lonhost_in_use}) eq 'HASH') {
+ return &do_cache_new('spares',$dom_in_use,$domconfig{'usersessions'}{'spares'}{$lonhost_in_use},$cachetime);
+ }
+ }
+ }
+ }
+ return;
+}
+
+sub get_lonbalancer_config {
+ my ($servers) = @_;
+ my ($currbalancer,$currtargets);
+ if (ref($servers) eq 'HASH') {
+ foreach my $server (keys(%{$servers})) {
+ my %what = (
+ spareid => 1,
+ perlvar => 1,
+ );
+ my ($result,$returnhash) = &get_remote_globals($server,\%what);
+ if ($result eq 'ok') {
+ if (ref($returnhash) eq 'HASH') {
+ if (ref($returnhash->{'perlvar'}) eq 'HASH') {
+ if ($returnhash->{'perlvar'}->{'lonBalancer'} eq 'yes') {
+ $currbalancer = $server;
+ $currtargets = {};
+ if (ref($returnhash->{'spareid'}) eq 'HASH') {
+ if (ref($returnhash->{'spareid'}->{'primary'}) eq 'ARRAY') {
+ $currtargets->{'primary'} = $returnhash->{'spareid'}->{'primary'};
+ }
+ if (ref($returnhash->{'spareid'}->{'default'}) eq 'ARRAY') {
+ $currtargets->{'default'} = $returnhash->{'spareid'}->{'default'};
+ }
+ }
+ last;
+ }
+ }
+ }
+ }
+ }
+ }
+ return ($currbalancer,$currtargets);
+}
+
+sub check_loadbalancing {
+ my ($uname,$udom) = @_;
+ my ($is_balancer,$dom_in_use,$homeintdom,$rule_in_effect,
+ $offloadto,$otherserver);
+ my $lonhost = $perlvar{'lonHostID'};
+ my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
+ my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
+ my $intdom = &Apache::lonnet::internet_dom($lonhost);
+ my $serverhomedom = &host_domain($lonhost);
+
+ my $cachetime = 60*60*24;
+
+ if (($uintdom ne '') && ($uintdom eq $intdom)) {
+ $dom_in_use = $udom;
+ $homeintdom = 1;
+ } else {
+ $dom_in_use = $serverhomedom;
+ }
+ my ($result,$cached)=&is_cached_new('loadbalancing',$dom_in_use);
+ unless (defined($cached)) {
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
+ if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
+ $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
+ }
+ }
+ if (ref($result) eq 'HASH') {
+ my $currbalancer = $result->{'lonhost'};
+ my $currtargets = $result->{'targets'};
+ my $currrules = $result->{'rules'};
+ if ($currbalancer ne '') {
+ my @hosts = ¤t_machine_ids();
+ if (grep(/^\Q$currbalancer\E$/,@hosts)) {
+ $is_balancer = 1;
+ }
+ }
+ if ($is_balancer) {
+ if (ref($currrules) eq 'HASH') {
+ if ($homeintdom) {
+ if ($uname ne '') {
+ if (($currrules->{'_LC_adv'} ne '') || ($currrules->{'_LC_author'} ne '')) {
+ my ($is_adv,$is_author) = &is_advanced_user($udom,$uname);
+ if (($currrules->{'_LC_author'} ne '') && ($is_author)) {
+ $rule_in_effect = $currrules->{'_LC_author'};
+ } elsif (($currrules->{'_LC_adv'} ne '') && ($is_adv)) {
+ $rule_in_effect = $currrules->{'_LC_adv'}
+ }
+ }
+ if ($rule_in_effect eq '') {
+ my %userenv = &userenvironment($udom,$uname,'inststatus');
+ if ($userenv{'inststatus'} ne '') {
+ my @statuses = map { &unescape($_); } split(/:/,$userenv{'inststatus'});
+ my ($othertitle,$usertypes,$types) =
+ &Apache::loncommon::sorted_inst_types($udom);
+ if (ref($types) eq 'ARRAY') {
+ foreach my $type (@{$types}) {
+ if (grep(/^\Q$type\E$/,@statuses)) {
+ if (exists($currrules->{$type})) {
+ $rule_in_effect = $currrules->{$type};
+ }
+ }
+ }
+ }
+ } else {
+ if (exists($currrules->{'default'})) {
+ $rule_in_effect = $currrules->{'default'};
+ }
+ }
+ }
+ } else {
+ if (exists($currrules->{'default'})) {
+ $rule_in_effect = $currrules->{'default'};
+ }
+ }
+ } else {
+ if ($currrules->{'_LC_external'} ne '') {
+ $rule_in_effect = $currrules->{'_LC_external'};
+ }
+ }
+ $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
+ $uname,$udom);
+ }
+ }
+ } elsif (($homeintdom) && ($udom ne $serverhomedom)) {
+ my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
+ unless (defined($cached)) {
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
+ if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
+ $result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
+ }
+ }
+ if (ref($result) eq 'HASH') {
+ my $currbalancer = $result->{'lonhost'};
+ my $currtargets = $result->{'targets'};
+ my $currrules = $result->{'rules'};
+
+ if ($currbalancer eq $lonhost) {
+ $is_balancer = 1;
+ if (ref($currrules) eq 'HASH') {
+ if ($currrules->{'_LC_internetdom'} ne '') {
+ $rule_in_effect = $currrules->{'_LC_internetdom'};
+ }
+ }
+ $offloadto = &get_loadbalancer_targets($rule_in_effect,$currtargets,
+ $uname,$udom);
+ }
+ } else {
+ if ($perlvar{'lonBalancer'} eq 'yes') {
+ $is_balancer = 1;
+ $offloadto = &this_host_spares($dom_in_use);
+ }
+ }
+ } else {
+ if ($perlvar{'lonBalancer'} eq 'yes') {
+ $is_balancer = 1;
+ $offloadto = &this_host_spares($dom_in_use);
+ }
+ }
+ my $lowest_load = 30000;
+ if (ref($offloadto) eq 'HASH') {
+ if (ref($offloadto->{'primary'}) eq 'ARRAY') {
+ foreach my $try_server (@{$offloadto->{'primary'}}) {
+ ($otherserver,$lowest_load) =
+ &compare_server_load($try_server,$otherserver,$lowest_load);
+ }
+ }
+ my $found_server = ($otherserver ne '' && $lowest_load < 100);
+
+ if (!$found_server) {
+ if (ref($offloadto->{'default'}) eq 'ARRAY') {
+ foreach my $try_server (@{$offloadto->{'default'}}) {
+ ($otherserver,$lowest_load) =
+ &compare_server_load($try_server,$otherserver,$lowest_load);
+ }
+ }
+ }
+ } elsif (ref($offloadto) eq 'ARRAY') {
+ if (@{$offloadto} == 1) {
+ $otherserver = $offloadto->[0];
+ } elsif (@{$offloadto} > 1) {
+ foreach my $try_server (@{$offloadto}) {
+ ($otherserver,$lowest_load) =
+ &compare_server_load($try_server,$otherserver,$lowest_load);
+ }
+ }
+ }
+ return ($is_balancer,$otherserver);
+}
+
+sub get_loadbalancer_targets {
+ my ($rule_in_effect,$currtargets,$uname,$udom) = @_;
+ my $offloadto;
+ if ($rule_in_effect eq '') {
+ $offloadto = $currtargets;
+ } else {
+ if ($rule_in_effect eq 'homeserver') {
+ my $homeserver = &homeserver($uname,$udom);
+ if ($homeserver ne 'no_host') {
+ $offloadto = [$homeserver];
+ }
+ } elsif ($rule_in_effect eq 'externalbalancer') {
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
+ if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
+ if ($domconfig{'loadbalancing'}{'lonhost'} ne '') {
+ if (&hostname($domconfig{'loadbalancing'}{'lonhost'}) ne '') {
+ $offloadto = [$domconfig{'loadbalancing'}{'lonhost'}];
+ }
+ }
+ } else {
+ my %servers = &dom_servers($udom);
+ my ($remotebalancer,$remotetargets) = &get_lonbalancer_config(\%servers);
+ if (&hostname($remotebalancer) ne '') {
+ $offloadto = [$remotebalancer];
+ }
+ }
+ } elsif (&hostname($rule_in_effect) ne '') {
+ $offloadto = [$rule_in_effect];
+ }
+ }
+ return $offloadto;
+}
+
+sub internet_dom_servers {
+ my ($dom) = @_;
+ my (%uniqservers,%servers);
+ my $primaryserver = &hostname(&domain($dom,'primary'));
+ my @machinedoms = &machine_domains($primaryserver);
+ foreach my $mdom (@machinedoms) {
+ my %currservers = %servers;
+ my %server = &get_servers($mdom);
+ %servers = (%currservers,%server);
+ }
+ my %by_hostname;
+ foreach my $id (keys(%servers)) {
+ push(@{$by_hostname{$servers{$id}}},$id);
+ }
+ foreach my $hostname (sort(keys(%by_hostname))) {
+ if (@{$by_hostname{$hostname}} > 1) {
+ my $match = 0;
+ foreach my $id (@{$by_hostname{$hostname}}) {
+ if (&host_domain($id) eq $dom) {
+ $uniqservers{$id} = $hostname;
+ $match = 1;
+ }
+ }
+ unless ($match) {
+ $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
+ }
+ } else {
+ $uniqservers{$by_hostname{$hostname}[0]} = $hostname;
+ }
+ }
+ return %uniqservers;
+}
+
# ---------------------- Find the homebase for a user from domain's lib servers
my %homecache;
@@ -1810,7 +2213,7 @@ sub is_cached_new {
my ($name,$id,$debug) = @_;
$id=&make_key($name,$id);
if (exists($remembered{$id})) {
- if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
+ if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
$accessed{$id}=[&gettimeofday()];
$hits++;
return ($remembered{$id},1);
@@ -1976,20 +2379,29 @@ sub getversion {
sub currentversion {
my $fname=shift;
- my ($result,$cached)=&is_cached_new('resversion',$fname);
- if (defined($cached)) { return $result; }
my $author=$fname;
$author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
my ($udom,$uname)=split(/\//,$author);
- my $home=homeserver($uname,$udom);
+ my $home=&homeserver($uname,$udom);
if ($home eq 'no_host') {
return -1;
}
- my $answer=reply("currentversion:$fname",$home);
+ my $answer=&reply("currentversion:$fname",$home);
if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
return -1;
}
- return &do_cache_new('resversion',$fname,$answer,600);
+ return $answer;
+}
+
+#
+# Return special version number of resource if set by override, empty otherwise
+#
+sub usedversion {
+ my $fname=shift;
+ unless ($fname) { $fname=$env{'request.uri'}; }
+ my ($urlversion)=($fname=~/\.(\d+)\.\w+$/);
+ if ($urlversion) { return $urlversion; }
+ return '';
}
# ----------------------------- Subscribe to a resource, return URL if possible
@@ -2017,10 +2429,11 @@ sub subscribe {
sub repcopy {
my $filename=shift;
$filename=~s/\/+/\//g;
- if ($filename=~m|^/home/httpd/html/adm/|) { return 'ok'; }
- if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
- if ($filename=~m|^/home/httpd/html/userfiles/| or
- $filename=~m -^/*(uploaded|editupload)/-) {
+ my $londocroot = $perlvar{'lonDocRoot'};
+ if ($filename=~m{^\Q$londocroot/adm/\E}) { return 'ok'; }
+ if ($filename=~m{^\Q$londocroot/lonUsers/\E}) { return 'ok'; }
+ if ($filename=~m{^\Q$londocroot/userfiles/\E} or
+ $filename=~m{^/*(uploaded|editupload)/}) {
return &repcopy_userfile($filename);
}
$filename=~s/[\n\r]//g;
@@ -2047,7 +2460,7 @@ sub repcopy {
unless ($home eq $perlvar{'lonHostID'}) {
my @parts=split(/\//,$filename);
my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
- if ($path ne "$perlvar{'lonDocRoot'}/res") {
+ if ($path ne "$londocroot/res") {
&logthis("Malconfiguration for replication: $filename");
return 'bad_request';
}
@@ -2525,7 +2938,7 @@ sub finishuserfileupload {
return '/adm/notfound.html';
}
if ($context eq 'overwrite') {
- my $source = $perlvar{'lonDaemons'}.'/tmp/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
+ my $source = LONCAPA::tempdir().'/overwrites/'.$docudom.'/'.$docuname.'/'.$fname;
my $target = $filepath.'/'.$file;
if (-e $source) {
my @info = stat($source);
@@ -2925,7 +3338,7 @@ sub courseacclog {
my $fnsymb=shift;
unless ($env{'request.course.id'}) { return ''; }
my $what=$fnsymb.':'.$env{'user.name'}.':'.$env{'user.domain'};
- if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|task|page)$/) {
+ if ($fnsymb=~/$LONCAPA::assess_re/) {
$what.=':POST';
# FIXME: Probably ought to escape things....
foreach my $key (keys(%env)) {
@@ -3575,7 +3988,7 @@ sub hashref2str {
$result.='=';
#print("Got a ref of ".(ref($key))." skipping.");
} else {
- if ($key) {$result.=&escape($key).'=';} else { last; }
+ if (defined($key)) {$result.=&escape($key).'=';} else { last; }
}
if(ref($hashref->{$key}) eq 'ARRAY') {
@@ -3727,7 +4140,7 @@ sub tmpreset {
if ($domain eq 'public' && $stuname eq 'public') {
$stuname=$ENV{'REMOTE_ADDR'};
}
- my $path=$perlvar{'lonDaemons'}.'/tmp';
+ my $path=LONCAPA::tempdir();
my %hash;
if (tie(%hash,'GDBM_File',
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
@@ -3766,7 +4179,7 @@ sub tmpstore {
}
my $now=time;
my %hash;
- my $path=$perlvar{'lonDaemons'}.'/tmp';
+ my $path=LONCAPA::tempdir();
if (tie(%hash,'GDBM_File',
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
&GDBM_WRCREAT(),0640)) {
@@ -3812,7 +4225,7 @@ sub tmprestore {
$namespace=~s/\//\_/g;
$namespace=~s/\W//g;
my %hash;
- my $path=$perlvar{'lonDaemons'}.'/tmp';
+ my $path=LONCAPA::tempdir();
if (tie(%hash,'GDBM_File',
$path.'/tmpstore_'.$stuname.'_'.$domain.'_'.$namespace.'.db',
&GDBM_READER(),0640)) {
@@ -3949,6 +4362,8 @@ sub restore {
}
# ---------------------------------------------------------- Course Description
+#
+#
sub coursedescription {
my ($courseid,$args)=@_;
@@ -3978,7 +4393,8 @@ sub coursedescription {
return %returnhash;
}
- # get the data agin
+ # get the data again
+
if (!$args->{'one_time'}) {
$envhash{'course.'.$normalid.'.last_cache'}=time;
}
@@ -3986,6 +4402,10 @@ sub coursedescription {
if ($chome ne 'no_host') {
%returnhash=&dump('environment',$cdomain,$cnum);
if (!exists($returnhash{'con_lost'})) {
+ my $username = $env{'user.name'}; # Defult username
+ if(defined $args->{'user'}) {
+ $username = $args->{'user'};
+ }
$returnhash{'home'}= $chome;
$returnhash{'domain'} = $cdomain;
$returnhash{'num'} = $cnum;
@@ -3996,8 +4416,8 @@ sub coursedescription {
$envhash{'course.'.$normalid.'.'.$name}=$value;
}
$returnhash{'url'}=&clutter($returnhash{'url'});
- $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
- $env{'user.name'}.'_'.$cdomain.'_'.$cnum;
+ $returnhash{'fn'}=LONCAPA::tempdir() .
+ $username.'_'.$cdomain.'_'.$cnum;
$envhash{'course.'.$normalid.'.home'}=$chome;
$envhash{'course.'.$normalid.'.domain'}=$cdomain;
$envhash{'course.'.$normalid.'.num'}=$cnum;
@@ -4780,7 +5200,7 @@ sub tmpget {
return %returnhash;
}
-# ------------------------------------------------------------ tmpget interface
+# ------------------------------------------------------------ tmpdel interface
sub tmpdel {
my ($token,$server)=@_;
if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
@@ -5178,12 +5598,16 @@ sub is_advanced_user {
my ($udom,$uname) = @_;
if ($udom ne '' && $uname ne '') {
if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'})) {
- return $env{'user.adv'};
+ if (wantarray) {
+ return ($env{'user.adv'},$env{'user.author'});
+ } else {
+ return $env{'user.adv'};
+ }
}
}
my %roleshash = &get_my_roles($uname,$udom,'userroles',undef,undef,undef,1);
my %allroles;
- my $is_adv;
+ my ($is_adv,$is_author);
foreach my $role (keys(%roleshash)) {
my ($trest,$tdomain,$trole,$sec) = split(/:/,$role);
my $area = '/'.$tdomain.'/'.$trest;
@@ -5197,6 +5621,9 @@ sub is_advanced_user {
} elsif ($trole ne 'gr') {
&standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
}
+ if ($trole eq 'au') {
+ $is_author = 1;
+ }
}
}
foreach my $role (keys(%allroles)) {
@@ -5211,6 +5638,9 @@ sub is_advanced_user {
}
}
}
+ if (wantarray) {
+ return ($is_adv,$is_author);
+ }
return $is_adv;
}
@@ -5481,6 +5911,15 @@ sub allowed {
}
}
+# User who is not author or co-author might still be able to edit
+# resource of an author in the domain (e.g., if Domain Coordinator).
+ if (($priv eq 'eco') && ($thisallowed eq '') && ($env{'request.course.id'}) &&
+ (&allowed('mdc',$env{'request.course.id'}))) {
+ if ($env{"user.priv.cm./$uri/"}=~/\Q$priv\E\&([^\:]*)/) {
+ $thisallowed.=$1;
+ }
+ }
+
# Course: uri itself is a course
my $courseuri=$uri;
$courseuri=~s/\_(\d)/\/$1/;
@@ -5751,7 +6190,27 @@ sub allowed {
}
return 'F';
}
-
+#
+# Removes the versino from a URI and
+# splits it in to its filename and path to the filename.
+# Seems like File::Basename could have done this more clearly.
+# Parameters:
+# $uri - input URI
+# Returns:
+# Two element list consisting of
+# $pathname - the URI up to and excluding the trailing /
+# $filename - The part of the URI following the last /
+# NOTE:
+# Another realization of this is simply:
+# use File::Basename;
+# ...
+# $uri = shift;
+# $filename = basename($uri);
+# $path = dirname($uri);
+# return ($filename, $path);
+#
+# The implementation below is probably faster however.
+#
sub split_uri_for_cond {
my $uri=&deversion(&declutter(shift));
my @uriparts=split(/\//,$uri);
@@ -5947,7 +6406,7 @@ sub fetch_enrollment_query {
$$replyref{$key} = $value;
}
} else {
- my $pathname = $perlvar{'lonDaemons'}.'/tmp';
+ my $pathname = LONCAPA::tempdir();
foreach my $line (@responses) {
my ($key,$value) = split(/=/,$line);
$$replyref{$key} = $value;
@@ -5977,7 +6436,7 @@ sub fetch_enrollment_query {
sub get_query_reply {
my $queryid=shift;
- my $replyfile=$perlvar{'lonDaemons'}.'/tmp/'.$queryid;
+ my $replyfile=LONCAPA::tempdir().$queryid;
my $reply='';
for (1..100) {
sleep 2;
@@ -6647,6 +7106,13 @@ sub assignrole {
return 'refused';
}
}
+ } elsif ($role eq 'au') {
+ if ($url ne '/'.$udom.'/') {
+ &logthis('Attempt by '.$env{'user.name'}.':'.$env{'user.domain'}.
+ ' to assign author role for '.$uname.':'.$udom.
+ ' in domain: '.$url.' refused (wrong domain).');
+ return 'refused';
+ }
}
$mrole=$role;
}
@@ -7292,8 +7758,8 @@ sub store_userdata {
$namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
}
$namevalue=~s/\&$//;
- $result = &reply("store:$env{'user.domain'}:$env{'user.name'}:".
- "$namespace:$datakey:$namevalue",$uhome);
+ $result = &reply("store:$udom:$uname:$namespace:$datakey:".
+ $namevalue,$uhome);
}
} else {
$result = 'error: data to store was not a hash reference';
@@ -7414,7 +7880,7 @@ sub save_selected_files {
sub clear_selected_files {
my ($user) = @_;
my $filename = $user."savedfiles";
- open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ open (OUT, '>'.LONCAPA::tempdir().$filename);
print (OUT undef);
close (OUT);
return ("ok");
@@ -7424,7 +7890,7 @@ sub files_in_path {
my ($user, $path) = @_;
my $filename = $user."savedfiles";
my %return_files;
- open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ open (IN, '<'.LONCAPA::tempdir().$filename);
while (my $line_in = <IN>) {
chomp ($line_in);
my @paths_and_file = split (m!/!, $line_in);
@@ -7446,7 +7912,7 @@ sub files_not_in_path {
my $filename = $user."savedfiles";
my @return_files;
my $path_part;
- open(IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ open(IN, '<'.LONCAPA::.$filename);
while (my $line = <IN>) {
#ok, I know it's clunky, but I want it to work
my @paths_and_file = split(m|/|, $line);
@@ -7794,26 +8260,33 @@ sub dirlist {
if($udom) {
if($uname) {
+ my $uhome = &homeserver($uname,$udom);
+ if ($uhome eq 'no_host') {
+ return ([],'no_host');
+ }
$listing = &reply('ls3:'.&escape('/'.$uri).':'.$getpropath.':'
.$getuserdir.':'.&escape($dirRoot)
- .':'.&escape($uname).':'.&escape($udom),
- &homeserver($uname,$udom));
+ .':'.&escape($uname).':'.&escape($udom),$uhome);
if ($listing eq 'unknown_cmd') {
- $listing = &reply('ls2:'.$dirRoot.'/'.$uri,
- &homeserver($uname,$udom));
+ $listing = &reply('ls2:'.$dirRoot.'/'.$uri,$uhome);
} else {
@listing_results = map { &unescape($_); } split(/:/,$listing);
}
if ($listing eq 'unknown_cmd') {
- $listing = &reply('ls:'.$dirRoot.'/'.$uri,
- &homeserver($uname,$udom));
+ $listing = &reply('ls:'.$dirRoot.'/'.$uri,$uhome);
@listing_results = split(/:/,$listing);
} else {
@listing_results = map { &unescape($_); } split(/:/,$listing);
}
- return @listing_results;
+ if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
+ ($listing eq 'rejected') || ($listing eq 'refused') ||
+ ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
+ return ([],$listing);
+ } else {
+ return (\@listing_results);
+ }
} elsif(!$alternateRoot) {
- my %allusers;
+ my (%allusers,%listerror);
my %servers = &get_servers($udom,'library');
foreach my $tryserver (keys(%servers)) {
$listing = &reply('ls3:'.&escape("/res/$udom").':::::'.
@@ -7832,32 +8305,31 @@ sub dirlist {
@listing_results =
map { &unescape($_); } split(/:/,$listing);
}
- if ($listing_results[0] ne 'no_such_dir' &&
- $listing_results[0] ne 'empty' &&
- $listing_results[0] ne 'con_lost') {
+ if (($listing eq 'no_such_host') || ($listing eq 'con_lost') ||
+ ($listing eq 'rejected') || ($listing eq 'refused') ||
+ ($listing eq 'no_such_dir') || ($listing eq 'empty')) {
+ $listerror{$tryserver} = $listing;
+ } else {
foreach my $line (@listing_results) {
my ($entry) = split(/&/,$line,2);
$allusers{$entry} = 1;
}
}
}
- my $alluserstr='';
+ my @alluserslist=();
foreach my $user (sort(keys(%allusers))) {
- $alluserstr.=$user.'&user:';
+ push(@alluserslist,$user.'&user');
}
- $alluserstr=~s/:$//;
- return split(/:/,$alluserstr);
+ return (\@alluserslist);
} else {
- return ('missing user name');
+ return ([],'missing username');
}
} elsif(!defined($getpropath)) {
- my @all_domains = sort(&all_domains());
- foreach my $domain (@all_domains) {
- $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
- }
- return @all_domains;
+ my $path = $perlvar{'lonDocRoot'}.'/res/';
+ my @all_domains = map { $path.$_.'/&domain'; } (sort(&all_domains()));
+ return (\@all_domains);
} else {
- return ('missing domain');
+ return ([],'missing domain');
}
}
@@ -7870,11 +8342,13 @@ sub GetFileTimestamp {
my ($studentDomain,$studentName,$filename,$getuserdir)=@_;
$studentDomain = &LONCAPA::clean_domain($studentDomain);
$studentName = &LONCAPA::clean_username($studentName);
- my ($fileStat) =
- &Apache::lonnet::dirlist($filename,$studentDomain,$studentName,
- undef,$getuserdir);
- my @stats = split('&', $fileStat);
- if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
+ my ($fileref,$error) = &dirlist($filename,$studentDomain,$studentName,
+ undef,$getuserdir);
+ if (($error eq 'empty') || ($error eq 'no_such_dir')) {
+ return -1;
+ }
+ if (ref($fileref) eq 'ARRAY') {
+ my @stats = split('&',$fileref->[0]);
# @stats contains first the filename, then the stat output
return $stats[10]; # so this is 10 instead of 9.
} else {
@@ -7906,12 +8380,15 @@ sub stat_file {
if ($file =~ /^userfiles\//) {
$getpropath = 1;
}
- my ($result) = &dirlist($file,$udom,$uname,$getpropath);
- my @stats = split('&', $result);
-
- if($stats[0] ne 'empty' && $stats[0] ne 'no_such_dir') {
- shift(@stats); #filename is first
- return @stats;
+ my ($listref,$error) = &dirlist($file,$udom,$uname,$getpropath);
+ if (($error eq 'empty') || ($error eq 'no_such_dir')) {
+ return ();
+ } else {
+ if (ref($listref) eq 'ARRAY') {
+ my @stats = split('&',$listref->[0]);
+ shift(@stats); #filename is first
+ return @stats;
+ }
}
return ();
}
@@ -8232,15 +8709,7 @@ sub EXT {
} elsif ($realm eq 'request') {
# ------------------------------------------------------------- request.browser
if ($space eq 'browser') {
- if ($qualifier eq 'textremote') {
- if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
- return 1;
- } else {
- return 0;
- }
- } else {
- return $env{'browser.'.$qualifier};
- }
+ return $env{'browser.'.$qualifier};
# ------------------------------------------------------------ request.filename
} else {
return $env{'request.'.$spacequalifierrest};
@@ -8521,10 +8990,10 @@ sub metadata {
if (($uri eq '') ||
(($uri =~ m|^/*adm/|) &&
($uri !~ m|^adm/includes|) && ($uri !~ m|/bulletinboard$|)) ||
- ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$}) || ($uri =~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
+ ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;
}
- if (($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/})
+ if (($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/)
&& &Apache::lonxml::get_state('target') =~ /^(|meta)$/) {
return undef;
}
@@ -8561,13 +9030,14 @@ sub metadata {
my %metathesekeys=();
unless ($filename=~/\.meta$/) { $filename.='.meta'; }
my $metastring;
- if ($uri =~ /^~/ || $uri =~ m{home/$match_username/public_html/}) {
+ if ($uri =~ /^priv/ || $uri=~/home\/httpd\/html\/priv/) {
my $which = &hreflocation('','/'.($liburi || $uri));
$metastring =
&Apache::lonnet::ssi_body($which,
('grade_target' => 'meta'));
$cachetime = 1; # only want this cached in the child not long term
- } elsif ($uri !~ m -^(editupload)/-) {
+ } elsif (($uri !~ m -^(editupload)/-) &&
+ ($uri !~ m{^/*uploaded/$match_domain/$match_courseid/docs/})) {
my $file=&filelocation('',&clutter($filename));
#push(@{$metaentry{$uri.'.file'}},$file);
$metastring=&getfile($file);
@@ -9257,9 +9727,26 @@ sub getCODE {
}
return undef;
}
-
+#
+# Determines the random seed for a specific context:
+#
+# parameters:
+# symb - in course context the symb for the seed.
+# course_id - The course id of the form domain_coursenum.
+# domain - Domain for the user.
+# course - Course for the user.
+# cenv - environment of the course.
+#
+# NOTE:
+# All parameters are picked out of the environment if missing
+# or not defined.
+# If a symb cannot be determined the current time is used instead.
+#
+# For a given well defined symb, courside, domain, username,
+# and course environment, the seed is reproducible.
+#
sub rndseed {
- my ($symb,$courseid,$domain,$username)=@_;
+ my ($symb,$courseid,$domain,$username, $cenv)=@_;
my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
if (!defined($symb)) {
unless ($symb=$wsymb) { return time; }
@@ -9267,9 +9754,16 @@ sub rndseed {
if (!$courseid) { $courseid=$wcourseid; }
if (!$domain) { $domain=$wdomain; }
if (!$username) { $username=$wusername }
- my $which=&get_rand_alg();
+
+ my $which;
+ if (defined($cenv->{'rndseed'})) {
+ $which = $cenv->{'rndseed'};
+ } else {
+ $which =&get_rand_alg($courseid);
+ }
if (defined(&getCODE())) {
+
if ($which eq '64bit5') {
return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit4') {
@@ -9593,8 +10087,9 @@ sub getfile {
sub repcopy_userfile {
my ($file)=@_;
- if ($file =~ m -^/*(uploaded|editupload)/-) { $file=&filelocation("",$file); }
- if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
+ my $londocroot = $perlvar{'lonDocRoot'};
+ if ($file =~ m{^/*(uploaded|editupload)/}) { $file=&filelocation("",$file); }
+ if ($file =~ m{^\Q$londocroot/lonUsers/\E}) { return 'ok'; }
my ($cdom,$cnum,$filename) =
($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
my $uri="/uploaded/$cdom/$cnum/$filename";
@@ -9723,13 +10218,7 @@ sub filelocation {
$file=~s-^/adm/coursedocs/showdoc/-/-;
}
- if ($file=~m:^/~:) { # is a contruction space reference
- $location = $file;
- $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
- } elsif ($file=~m{^/home/$match_username/public_html/}) {
- # is a correct contruction space reference
- $location = $file;
- } elsif ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
+ if ($file =~ m-^\Q$Apache::lonnet::perlvar{'lonTabDir'}\E/-) {
$location = $file;
} elsif ($file=~/^\/*(uploaded|editupload)/) { # is an uploaded file
my ($udom,$uname,$filename)=
@@ -9739,7 +10228,7 @@ sub filelocation {
my @ids=¤t_machine_ids();
foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
if ($is_me) {
- $location=&propath($udom,$uname).'/userfiles/'.$filename;
+ $location=propath($udom,$uname).'/userfiles/'.$filename;
} else {
$location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
$udom.'/'.$uname.'/'.$filename;
@@ -9748,11 +10237,12 @@ sub filelocation {
$location = $perlvar{'lonDocRoot'}.'/'.$file;
} else {
$file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
- $file=~s:^/res/:/:;
+ $file=~s:^/(res|priv)/:/:;
+ my $space=$1;
if ( !( $file =~ m:^/:) ) {
$location = $dir. '/'.$file;
} else {
- $location = '/home/httpd/html/res'.$file;
+ $location = $perlvar{'lonDocRoot'}.'/'.$space.$file;
}
}
$location=~s://+:/:g; # remove duplicate /
@@ -9777,11 +10267,9 @@ sub hreflocation {
}
if ($file=~m-^\Q$perlvar{'lonDocRoot'}\E-) {
$file=~s-^\Q$perlvar{'lonDocRoot'}\E--;
- } elsif ($file=~m-/home/($match_username)/public_html/-) {
- $file=~s-^/home/($match_username)/public_html/-/~$1/-;
} elsif ($file=~m-^\Q$perlvar{'lonUsersDir'}\E-) {
- $file=~s-^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/
- -/uploaded/$1/$2/-x;
+ $file=~s{^/home/httpd/lonUsers/($match_domain)/./././($match_name)/userfiles/}
+ {/uploaded/$1/$2/}x;
}
if ($file=~ m{^/userfiles/}) {
$file =~ s{^/userfiles/}{/uploaded/};
@@ -9789,6 +10277,10 @@ sub hreflocation {
return $file;
}
+
+
+
+
sub current_machine_domains {
return &machine_domains(&hostname($perlvar{'lonHostID'}));
}
@@ -9977,6 +10469,7 @@ sub get_dns {
while (%alldns) {
my ($dns) = keys(%alldns);
my $ua=new LWP::UserAgent;
+ $ua->timeout(30);
my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
my $response=$ua->request($request);
delete($alldns{$dns});
@@ -10061,13 +10554,19 @@ sub get_dns {
my $loaded;
my %name_to_host;
my %internetdom;
+ my %LC_dns_serv;
sub parse_hosts_tab {
my ($file) = @_;
foreach my $configline (@$file) {
next if ($configline =~ /^(\#|\s*$ )/x);
- next if ($configline =~ /^\^/);
- chomp($configline);
+ chomp($configline);
+ if ($configline =~ /^\^/) {
+ if ($configline =~ /^\^([\w.\-]+)/) {
+ $LC_dns_serv{$1} = 1;
+ }
+ next;
+ }
my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
$name=~s/\s//g;
if ($id && $domain && $role && $name) {
@@ -10203,6 +10702,14 @@ sub get_dns {
my ($lonid) = @_;
return $internetdom{$lonid};
}
+
+ sub is_LC_dns {
+ &load_hosts_tab() if (!$loaded);
+
+ my ($hostname) = @_;
+ return exists($LC_dns_serv{$hostname});
+ }
+
}
{
@@ -10478,9 +10985,25 @@ BEGIN {
}
}
+# ---------------------------------------------------------- Read managers table
+{
+ if (-e "$perlvar{'lonTabDir'}/managers.tab") {
+ if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
+ while (my $configline=<$config>) {
+ chomp($configline);
+ next if ($configline =~ /^\#/);
+ if (($configline =~ /^[\w\-]+$/) || ($configline =~ /^[\w\-]+\:[\w\-]+$/)) {
+ $managerstab{$configline} = 1;
+ }
+ }
+ close($config);
+ }
+ }
+}
+
# ------------- set up temporary directory
{
- $tmpdir = $perlvar{'lonDaemons'}.'/tmp/';
+ $tmpdir = LONCAPA::tempdir();
}
@@ -10974,11 +11497,32 @@ revokecustomrole($udom,$uname,$url,$role
=item *
-coursedescription($courseid) : returns a hash of information about the
+coursedescription($courseid,$options) : returns a hash of information about the
specified course id, including all environment settings for the
course, the description of the course will be in the hash under the
key 'description'
+$options is an optional parameter that if supplied is a hash reference that controls
+what how this function works. It has the following key/values:
+
+=over 4
+
+=item freshen_cache
+
+If defined, and the environment cache for the course is valid, it is
+returned in the returned hash.
+
+=item one_time
+
+If defined, the last cache time is set to _now_
+
+=item user
+
+If defined, the supplied username is used instead of the current user.
+
+
+=back
+
=item *
resdata($name,$domain,$type,@which) : request for current parameter
@@ -11309,7 +11853,82 @@ or lonTabs/domain.tab.
=item *
-dirlist($uri) : return directory list based on URI
+dirlist() : return directory list based on URI (first arg).
+
+Inputs: 1 required, 5 optional.
+
+=over
+
+=item
+$uri - path to file in filesystem (starts: /res or /userfiles/). Required.
+
+=item
+$userdomain - domain of user/course to be listed. Extracted from $uri if absent.
+
+=item
+$username - username of user/course to be listed. Extracted from $uri if absent.
+
+=item
+$getpropath - boolean: 1 if prepend path using &propath().
+
+=item
+$getuserdir - boolean: 1 if prepend path for "userfiles".
+
+=item
+$alternateRoot - path to prepend in place of path from $uri.
+
+=back
+
+Returns: Array of up to two items.
+
+=over
+
+a reference to an array of files/subdirectories
+
+=over
+
+Each element in the array of files/subdirectories is a & separated list of
+item name and the result of running stat on the item. If dirlist was requested
+for a file instead of a directory, the item name will be ''. For a directory
+listing, if the item is a metadata file, the element will end &N&M
+(where N amd M are either 0 or 1, corresponding to obsolete set (1), or
+default copyright set (1).
+
+=back
+
+a scalar containing error condition (if encountered).
+
+=over
+
+=item
+no_host (no homeserver identified for $username:$domain).
+
+=item
+no_such_host (server contacted for listing not identified as valid host).
+
+=item
+con_lost (connection to remote server failed).
+
+=item
+refused (invalid $username:$domain received on lond side).
+
+=item
+no_such_dir (directory at specified path on lond side does not exist).
+
+=item
+empty (directory at specified path on lond side is empty).
+
+=over
+
+This is currently not encountered because the &ls3, &ls2,
+&ls (_handler) routines on the lond side do not filter out
+. and .. from a directory listing.
+
+=back
+
+=back
+
+=back
=item *
@@ -11371,11 +11990,12 @@ splitting on '&', supports elements that
=head2 Logging Routines
-=over 4
These routines allow one to make log messages in the lonnet.log and
lonnet.perm logfiles.
+=over 4
+
=item *
logtouch() : make sure the logfile, lonnet.log, exists
@@ -11391,6 +12011,7 @@ logperm() : append a permanent message t
file never gets deleted by any automated portion of the system, only
messages of critical importance should go in here.
+
=back
=head2 General File Helper Routines