--- loncom/lonnet/perl/lonnet.pm 2007/03/02 23:43:24 1.839
+++ loncom/lonnet/perl/lonnet.pm 2007/03/28 21:44:13 1.854
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.839 2007/03/02 23:43:24 albertel Exp $
+# $Id: lonnet.pm,v 1.854 2007/03/28 21:44:13 albertel Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -35,12 +35,10 @@ use HTTP::Headers;
use HTTP::Date;
# use Date::Parse;
use vars
-qw(%perlvar %badServerCache %iphost %spareid %hostdom
- %libserv %pr %prp $memcache %packagetab
+qw(%perlvar %badServerCache %spareid
+ %pr %prp $memcache %packagetab
%courselogs %accesshash %userrolehash %domainrolehash $processmarker $dumpcount
%coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf %coursetypebuf
- %domaindescription %domain_auth_def %domain_auth_arg_def
- %domain_lang_def %domain_city %domain_longi %domain_lati %domain_primary
$tmpdir $_64bit %env);
use IO::Socket;
@@ -55,6 +53,7 @@ use Digest::MD5;
use Math::Random;
use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;
+use Apache::lonhosts;
my $readit;
my $max_connection_retries = 10; # Or some such value.
@@ -146,6 +145,20 @@ sub logperm {
return 1;
}
+sub create_connection {
+ my ($hostname,$lonid) = @_;
+ my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
+ Type => SOCK_STREAM,
+ Timeout => 10);
+ return 0 if (!$client);
+ print $client (join(':',$hostname,$lonid,&machine_ids($lonid))."\n");
+ my $result = <$client>;
+ chomp($result);
+ return 1 if ($result eq 'done');
+ return 0;
+}
+
+
# -------------------------------------------------- Non-critical communication
sub subreply {
my ($cmd,$server)=@_;
@@ -172,8 +185,10 @@ sub subreply {
Timeout => 10);
if($client) {
last; # Connected!
+ } else {
+ &create_connection(&hostname($server),$server);
}
- sleep(1); # Try again later if failed connection.
+ sleep(1); # Try again later if failed connection.
}
my $answer;
if ($client) {
@@ -640,19 +655,19 @@ sub homeserver {
my $index="$uname:$udom";
if (exists($homecache{$index})) { return $homecache{$index}; }
- my $tryserver;
- foreach $tryserver (keys %libserv) {
+
+ my %servers = &get_servers($udom,'library');
+ foreach my $tryserver (keys(%servers)) {
next if ($ignoreBadCache ne 'true' &&
exists($badServerCache{$tryserver}));
- if ($hostdom{$tryserver} eq $udom) {
- my $answer=reply("home:$udom:$uname",$tryserver);
- if ($answer eq 'found') {
- delete($badServerCache{$tryserver});
- return $homecache{$index}=$tryserver;
- } elsif ($answer eq 'no_host') {
- $badServerCache{$tryserver}=1;
- }
- }
+
+ my $answer=reply("home:$udom:$uname",$tryserver);
+ if ($answer eq 'found') {
+ delete($badServerCache{$tryserver});
+ return $homecache{$index}=$tryserver;
+ } elsif ($answer eq 'no_host') {
+ $badServerCache{$tryserver}=1;
+ }
}
return 'no_host';
}
@@ -663,24 +678,22 @@ sub idget {
my ($udom,@ids)=@_;
my %returnhash=();
- my $tryserver;
- foreach $tryserver (keys %libserv) {
- if ($hostdom{$tryserver} eq $udom) {
- my $idlist=join('&',@ids);
- $idlist=~tr/A-Z/a-z/;
- my $reply=&reply("idget:$udom:".$idlist,$tryserver);
- my @answer=();
- if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
- @answer=split(/\&/,$reply);
- } ;
- my $i;
- for ($i=0;$i<=$#ids;$i++) {
- if ($answer[$i]) {
- $returnhash{$ids[$i]}=$answer[$i];
- }
- }
- }
- }
+ my %servers = &get_servers($udom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ my $idlist=join('&',@ids);
+ $idlist=~tr/A-Z/a-z/;
+ my $reply=&reply("idget:$udom:".$idlist,$tryserver);
+ my @answer=();
+ if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
+ @answer=split(/\&/,$reply);
+ } ;
+ my $i;
+ for ($i=0;$i<=$#ids;$i++) {
+ if ($answer[$i]) {
+ $returnhash{$ids[$i]}=$answer[$i];
+ }
+ }
+ }
return %returnhash;
}
@@ -729,8 +742,8 @@ sub get_dom {
}
$items=~s/\&$//;
if (!$udom) { $udom=$env{'user.domain'}; }
- if (exists($domain_primary{$udom})) {
- my $uhome=$domain_primary{$udom};
+ if (defined(&domain($udom,'primary'))) {
+ my $uhome=&domain($udom,'primary');
my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
my @pairs=split(/\&/,$rep);
if ( $#pairs==0 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
@@ -753,8 +766,8 @@ sub get_dom {
sub put_dom {
my ($namespace,$storehash,$udom)=@_;
if (!$udom) { $udom=$env{'user.domain'}; }
- if (exists($domain_primary{$udom})) {
- my $uhome=$domain_primary{$udom};
+ if (defined(&domain($udom,'primary'))) {
+ my $uhome=&domain($udom,'primary');
my $items='';
foreach my $item (keys(%$storehash)) {
$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
@@ -769,8 +782,8 @@ sub put_dom {
sub retrieve_inst_usertypes {
my ($udom) = @_;
my (%returnhash,@order);
- if (exists($domain_primary{$udom})) {
- my $uhome=$domain_primary{$udom};
+ if (defined(&domain($udom,'primary'))) {
+ my $uhome=&domain($udom,'primary');
my $rep=&reply("inst_usertypes:$udom",$uhome);
my ($hashitems,$orderitems) = split(/:/,$rep);
my @pairs=split(/\&/,$hashitems);
@@ -1014,10 +1027,16 @@ my %remembered;
my %accessed;
my $kicks=0;
my $hits=0;
+sub make_key {
+ my ($name,$id) = @_;
+ if (length($id) > 200) { $id=length($id).':'.&Digest::MD5::md5_hex($id); }
+ return &escape($name.':'.$id);
+}
+
sub devalidate_cache_new {
my ($name,$id,$debug) = @_;
if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
- $id=&escape($name.':'.$id);
+ $id=&make_key($name,$id);
$memcache->delete($id);
delete($remembered{$id});
delete($accessed{$id});
@@ -1025,7 +1044,7 @@ sub devalidate_cache_new {
sub is_cached_new {
my ($name,$id,$debug) = @_;
- $id=&escape($name.':'.$id);
+ $id=&make_key($name,$id);
if (exists($remembered{$id})) {
if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
$accessed{$id}=[&gettimeofday()];
@@ -1048,7 +1067,7 @@ sub is_cached_new {
sub do_cache_new {
my ($name,$id,$value,$time,$debug) = @_;
- $id=&escape($name.':'.$id);
+ $id=&make_key($name,$id);
my $setvalue=$value;
if (!defined($setvalue)) {
$setvalue='__undef__';
@@ -1843,8 +1862,9 @@ sub flushcourselogs {
# Write course id database (reverse lookup) to homeserver of courses
# Is used in pickcourse
#
- foreach my $crsid (keys(%courseidbuffer)) {
- &courseidput($hostdom{$crsid},$courseidbuffer{$crsid},$crsid);
+ foreach my $crs_home (keys(%courseidbuffer)) {
+ &courseidput(&host_domain($crs_home),$courseidbuffer{$crs_home},
+ $crs_home);
}
#
# File accesses
@@ -1911,13 +1931,12 @@ sub flushcourselogs {
delete $domainrolehash{$entry};
}
foreach my $dom (keys(%domrolebuffer)) {
- foreach my $tryserver (keys %libserv) {
- if ($hostdom{$tryserver} eq $dom) {
- unless (&reply('domroleput:'.$dom.':'.
- $domrolebuffer{$dom},$tryserver) eq 'ok') {
- &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
- }
- }
+ my %servers = &get_servers($dom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ unless (&reply('domroleput:'.$dom.':'.
+ $domrolebuffer{$dom},$tryserver) eq 'ok') {
+ &logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
+ }
}
}
$dumpcount++;
@@ -2099,7 +2118,7 @@ sub get_my_roles {
sub postannounce {
my ($server,$text)=@_;
- unless (&allowed('psa',$hostdom{$server})) { return 'refused'; }
+ unless (&allowed('psa',&host_domain($server))) { return 'refused'; }
unless ($text=~/\w/) { $text=''; }
return &reply('setannounce:'.&escape($text),$server);
}
@@ -2135,11 +2154,16 @@ sub courseiddump {
my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
my %returnhash=();
unless ($domfilter) { $domfilter=''; }
- foreach my $tryserver (keys %libserv) {
- if ( ($hostidflag == 1 && grep/^$tryserver$/,@{$hostidref}) || (!defined($hostidflag)) ) {
- if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
+ my %libserv = &all_library();
+ foreach my $tryserver (keys(%libserv)) {
+ if ( ( $hostidflag == 1
+ && grep(/^\Q$tryserver\E$/,@{$hostidref}) )
+ || (!defined($hostidflag)) ) {
+
+ if ($domfilter eq ''
+ || (&host_domain($tryserver) eq $domfilter)) {
foreach my $line (
- split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
+ split(/\&/,&reply('courseiddump:'.&host_domain($tryserver).':'.
$sincefilter.':'.&escape($descfilter).':'.
&escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
$tryserver))) {
@@ -2167,12 +2191,13 @@ sub dcmailput {
sub dcmaildump {
my ($dom,$startdate,$enddate,$senders) = @_;
my %returnhash=();
- if (exists($domain_primary{$dom})) {
+
+ if (defined(&domain($dom,'primary'))) {
my $cmd='dcmaildump:'.$dom.':'.&escape($startdate).':'.
&escape($enddate).':';
my @esc_senders=map { &escape($_)} @$senders;
$cmd.=&escape(join('&',@esc_senders));
- foreach my $line (split(/\&/,&reply($cmd,$domain_primary{$dom}))) {
+ foreach my $line (split(/\&/,&reply($cmd,&domain($dom,'primary')))) {
my ($key,$value) = split(/\=/,$line,2);
if (($key) && ($value)) {
$returnhash{&unescape($key)} = &unescape($value);
@@ -2193,19 +2218,19 @@ sub get_domain_roles {
}
my $rolelist = join(':',@{$roles});
my %personnel = ();
- foreach my $tryserver (keys(%libserv)) {
- if ($hostdom{$tryserver} eq $dom) {
- %{$personnel{$tryserver}}=();
- foreach my $line (
- split(/\&/,&reply('domrolesdump:'.$dom.':'.
- &escape($startdate).':'.&escape($enddate).':'.
- &escape($rolelist), $tryserver))) {
- my ($key,$value) = split(/\=/,$line,2);
- if (($key) && ($value)) {
- $personnel{$tryserver}{&unescape($key)} = &unescape($value);
- }
- }
- }
+
+ my %servers = &get_servers($dom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ %{$personnel{$tryserver}}=();
+ foreach my $line (split(/\&/,&reply('domrolesdump:'.$dom.':'.
+ &escape($startdate).':'.
+ &escape($enddate).':'.
+ &escape($rolelist), $tryserver))) {
+ my ($key,$value) = split(/\=/,$line,2);
+ if (($key) && ($value)) {
+ $personnel{$tryserver}{&unescape($key)} = &unescape($value);
+ }
+ }
}
return %personnel;
}
@@ -4172,6 +4197,7 @@ sub definerole {
sub metadata_query {
my ($query,$custom,$customshow,$server_array)=@_;
my %rhash;
+ my %libserv = &all_library();
my @server_list = (defined($server_array) ? @$server_array
: keys(%libserv) );
for my $server (@server_list) {
@@ -4458,12 +4484,11 @@ sub auto_instcode_format {
my $courses = '';
my @homeservers;
if ($caller eq 'global') {
- foreach my $tryserver (keys(%libserv)) {
- if ($hostdom{$tryserver} eq $codedom) {
- if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
- push(@homeservers,$tryserver);
- }
- }
+ my %servers = &get_servers($codedom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
+ push(@homeservers,$tryserver);
+ }
}
} else {
push(@homeservers,&homeserver($caller,$codedom));
@@ -4497,35 +4522,31 @@ sub auto_instcode_format {
sub auto_instcode_defaults {
my ($domain,$returnhash,$code_order) = @_;
my @homeservers;
- foreach my $tryserver (keys(%libserv)) {
- if ($hostdom{$tryserver} eq $domain) {
- if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
- push(@homeservers,$tryserver);
- }
- }
+
+ my %servers = &get_servers($domain,'library');
+ foreach my $tryserver (keys(%servers)) {
+ if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
+ push(@homeservers,$tryserver);
+ }
}
- my $ok_response = 0;
+
my $response;
- while (@homeservers > 0 && $ok_response == 0) {
- my $server = shift(@homeservers);
+ foreach my $server (@homeservers) {
$response=&reply('autoinstcodedefaults:'.$domain,$server);
- if ($response !~ /(con_lost|error|no_such_host|refused)/) {
- foreach my $pair (split(/\&/,$response)) {
- my ($name,$value)=split(/\=/,$pair);
- if ($name eq 'code_order') {
- @{$code_order} = split(/\&/,&unescape($value));
- } else {
- $returnhash->{&unescape($name)}=&unescape($value);
- }
- }
- $ok_response = 1;
- }
- }
- if ($ok_response) {
- return 'ok';
- } else {
- return $response;
+ next if ($response =~ /(con_lost|error|no_such_host|refused)/);
+
+ foreach my $pair (split(/\&/,$response)) {
+ my ($name,$value)=split(/\=/,$pair);
+ if ($name eq 'code_order') {
+ @{$code_order} = split(/\&/,&unescape($value));
+ } else {
+ $returnhash->{&unescape($name)}=&unescape($value);
+ }
+ }
+ return 'ok';
}
+
+ return $response;
}
sub auto_validate_class_sec {
@@ -4818,21 +4839,19 @@ sub modifyuser {
if (($uhome eq 'no_host') &&
(($umode && $upass) || ($umode eq 'localauth'))) {
my $unhome='';
- if (defined($desiredhome) && $hostdom{$desiredhome} eq $udom) {
+ if (defined($desiredhome) && &host_domain($desiredhome) eq $udom) {
$unhome = $desiredhome;
} elsif($env{'course.'.$env{'request.course.id'}.'.domain'} eq $udom) {
$unhome=$env{'course.'.$env{'request.course.id'}.'.home'};
} else { # load balancing routine for determining $unhome
- my $tryserver;
my $loadm=10000000;
- foreach $tryserver (keys %libserv) {
- if ($hostdom{$tryserver} eq $udom) {
- my $answer=reply('load',$tryserver);
- if (($answer=~/\d+/) && ($answer<$loadm)) {
- $loadm=$answer;
- $unhome=$tryserver;
- }
- }
+ my %servers = &get_servers($udom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ my $answer=reply('load',$tryserver);
+ if (($answer=~/\d+/) && ($answer<$loadm)) {
+ $loadm=$answer;
+ $unhome=$tryserver;
+ }
}
}
if (($unhome eq '') || ($unhome eq 'no_host')) {
@@ -5047,7 +5066,7 @@ sub createcourse {
}
# ------------------------------------------------ Check supplied server name
$course_server = $env{'user.homeserver'} if (! defined($course_server));
- if (! exists($libserv{$course_server})) {
+ if (! &is_library($course_server)) {
return 'error:bad server name '.$course_server;
}
# ------------------------------------------------------------- Make the course
@@ -5580,28 +5599,27 @@ sub dirlist {
return @listing_results;
} elsif(!defined($alternateDirectoryRoot)) {
my %allusers;
- foreach my $tryserver (keys(%libserv)) {
- if($hostdom{$tryserver} eq $udom) {
- my $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
- $udom, $tryserver);
- my @listing_results;
- if ($listing eq 'unknown_cmd') {
- $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
- $udom, $tryserver);
- @listing_results = split(/:/,$listing);
- } else {
- @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') {
- foreach my $line (@listing_results) {
- my ($entry) = split(/&/,$line,2);
- $allusers{$entry} = 1;
- }
- }
- }
+ my %servers = &get_servers($udom,'library');
+ foreach my $tryserver (keys(%servers)) {
+ my $listing = &reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
+ $udom, $tryserver);
+ my @listing_results;
+ if ($listing eq 'unknown_cmd') {
+ $listing = &reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
+ $udom, $tryserver);
+ @listing_results = split(/:/,$listing);
+ } else {
+ @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') {
+ foreach my $line (@listing_results) {
+ my ($entry) = split(/&/,$line,2);
+ $allusers{$entry} = 1;
+ }
+ }
}
my $alluserstr='';
foreach my $user (sort(keys(%allusers))) {
@@ -5613,18 +5631,12 @@ sub dirlist {
return ('missing user name');
}
} elsif(!defined($alternateDirectoryRoot)) {
- my $tryserver;
- my %alldom=();
- foreach $tryserver (keys(%libserv)) {
- $alldom{$hostdom{$tryserver}}=1;
- }
- my $alldomstr='';
- foreach my $domain (sort(keys(%alldom))) {
- $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain:';
- }
- $alldomstr=~s/:$//;
- return split(/:/,$alldomstr);
- } else {
+ my @all_domains = sort(&all_domains());
+ foreach my $domain (@all_domains) {
+ $domain = $perlvar{'lonDocRoot'}.'/res/'.$domain.'/&domain';
+ }
+ return @all_domains;
+ } else {
return ('missing domain');
}
}
@@ -6187,7 +6199,8 @@ sub packages_tab_default {
$do_default=1;
} elsif ($pack_type eq 'extension') {
push(@extension,[$package,$pack_type,$pack_part]);
- } else {
+ } elsif ($pack_part eq $part) {
+ # only look at packages defaults for packages that this id is
push(@specifics,[$package,$pack_type,$pack_part]);
}
}
@@ -7414,20 +7427,29 @@ sub hreflocation {
}
sub current_machine_domains {
- my $hostname=&hostname($perlvar{'lonHostID'});
+ return &machine_domains(&hostname($perlvar{'lonHostID'}));
+}
+
+sub machine_domains {
+ my ($hostname) = @_;
my @domains;
my %hostname = &all_hostnames();
while( my($id, $name) = each(%hostname)) {
# &logthis("-$id-$name-$hostname-");
if ($hostname eq $name) {
- push(@domains,$hostdom{$id});
+ push(@domains,&host_domain($id));
}
}
return @domains;
}
sub current_machine_ids {
- my $hostname=&hostname($perlvar{'lonHostID'});
+ return &machine_ids(&hostname($perlvar{'lonHostID'}));
+}
+
+sub machine_ids {
+ my ($hostname) = @_;
+ $hostname ||= &hostname($perlvar{'lonHostID'});
my @ids;
my %hostname = &all_hostnames();
while( my($id, $name) = each(%hostname)) {
@@ -7575,95 +7597,202 @@ BEGIN {
%perlvar = (%perlvar,%{$configvars});
}
+sub get_dns {
+ my ($url,$func) = @_;
+ open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
+ foreach my $dns (<$config>) {
+ next if ($dns !~ /^\^(\S*)/x);
+ $dns = $1;
+ my $ua=new LWP::UserAgent;
+ my $request=new HTTP::Request('GET',"http://$dns$url");
+ my $response=$ua->request($request);
+ next if ($response->is_error());
+ my @content = split("\n",$response->content);
+ &$func(\@content);
+ }
+ close($config);
+}
# ------------------------------------------------------------ Read domain file
{
- %domaindescription = ();
- %domain_auth_def = ();
- %domain_auth_arg_def = ();
- my $fh;
- if (open($fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/domain.tab')) {
- while (my $line = <$fh>) {
- next if ($line =~ /^(\#|\s*$)/);
-# next if /^\#/;
- chomp $line;
- my ($domain, $domain_description, $def_auth, $def_auth_arg,
- $def_lang, $city, $longi, $lati, $primary) = split(/:/,$line,9);
- $domain_auth_def{$domain}=$def_auth;
- $domain_auth_arg_def{$domain}=$def_auth_arg;
- $domaindescription{$domain}=$domain_description;
- $domain_lang_def{$domain}=$def_lang;
- $domain_city{$domain}=$city;
- $domain_longi{$domain}=$longi;
- $domain_lati{$domain}=$lati;
- $domain_primary{$domain}=$primary;
+ my $loaded;
+ my %domain;
- # &logthis("Domain.tab: $domain, $domain_auth_def{$domain}, $domain_auth_arg_def{$domain},$domaindescription{$domain}");
-# &logthis("Domain.tab: $domain ".$domaindescription{$domain} );
+ sub parse_domain_tab {
+ my ($lines) = @_;
+ foreach my $line (@$lines) {
+ next if ($line =~ /^(\#|\s*$ )/x);
+
+ chomp($line);
+ my ($name,@elements) = split(/:/,$line,9);
+ my %this_domain;
+ foreach my $field ('description', 'auth_def', 'auth_arg_def',
+ 'lang_def', 'city', 'longi', 'lati',
+ 'primary') {
+ $this_domain{$field} = shift(@elements);
+ }
+ $domain{$name} = \%this_domain;
+ &logthis("Domain.tab: $name ".$domain{$name}{'description'} );
}
}
- close ($fh);
+
+ sub load_domain_tab {
+ &get_dns('/adm/dns/domain',\&parse_domain_tab);
+ my $fh;
+ if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
+ my @lines = <$fh>;
+ &parse_domain_tab(\@lines);
+ }
+ close($fh);
+ $loaded = 1;
+ }
+
+ sub domain {
+ &load_domain_tab() if (!$loaded);
+
+ my ($name,$what) = @_;
+ return if ( !exists($domain{$name}) );
+
+ if (!$what) {
+ return $domain{$name}{'description'};
+ }
+ return $domain{$name}{$what};
+ }
}
# ------------------------------------------------------------- Read hosts file
{
my %hostname;
- open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
+ my %hostdom;
+ my %libserv;
+ my $loaded;
+
+ sub parse_hosts_tab {
+ my ($file) = @_;
+ foreach my $configline (@$file) {
+ next if ($configline =~ /^(\#|\s*$ )/x);
+ next if ($configline =~ /^\^/);
+ chomp($configline);
+ my ($id,$domain,$role,$name)=split(/:/,$configline);
+ $name=~s/\s//g;
+ if ($id && $domain && $role && $name) {
+ $hostname{$id}=$name;
+ $hostdom{$id}=$domain;
+ if ($role eq 'library') { $libserv{$id}=$name; }
+ }
+ &logthis("Hosts.tab: $name ".$id );
+ }
+ }
- while (my $configline=<$config>) {
- next if ($configline =~ /^(\#|\s*$)/);
- chomp($configline);
- my ($id,$domain,$role,$name)=split(/:/,$configline);
- $name=~s/\s//g;
- if ($id && $domain && $role && $name) {
- $hostname{$id}=$name;
- $hostdom{$id}=$domain;
- if ($role eq 'library') { $libserv{$id}=$name; }
- }
+ sub load_hosts_tab {
+ &get_dns('/adm/dns/hosts',\&parse_hosts_tab);
+ open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
+ my @config = <$config>;
+ &parse_hosts_tab(\@config);
+ close($config);
+ $loaded=1;
}
- close($config);
+
# FIXME: dev server don't want this, production servers _do_ want this
#&get_iphost();
sub hostname {
+ &load_hosts_tab() if (!$loaded);
+
my ($lonid) = @_;
return $hostname{$lonid};
}
+
sub all_hostnames {
+ &load_hosts_tab() if (!$loaded);
+
return %hostname;
}
-}
-sub get_hosts_from_ip {
- my ($ip) = @_;
- my %iphosts = &get_iphost();
- if (ref($iphosts{$ip})) {
- return @{$iphosts{$ip}};
+ sub is_library {
+ &load_hosts_tab() if (!$loaded);
+
+ return exists($libserv{$_[0]});
}
- return;
-}
-sub get_iphost {
- if (%iphost) { return %iphost; }
- my %name_to_ip;
- my %hostname = &all_hostnames();
- foreach my $id (keys(%hostname)) {
- my $name=$hostname{$id};
- my $ip;
- if (!exists($name_to_ip{$name})) {
- $ip = gethostbyname($name);
- if (!$ip || length($ip) ne 4) {
- &logthis("Skipping host $id name $name no IP found");
- next;
+ sub all_library {
+ &load_hosts_tab() if (!$loaded);
+
+ return %libserv;
+ }
+
+ sub get_servers {
+ &load_hosts_tab() if (!$loaded);
+
+ my ($domain,$type) = @_;
+ my %possible_hosts = ($type eq 'library') ? %libserv
+ : %hostname;
+ my %result;
+ if (ref($domain) eq 'ARRAY') {
+ while ( my ($host,$hostname) = each(%possible_hosts)) {
+ if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
+ $result{$host} = $hostname;
+ }
}
- $ip=inet_ntoa($ip);
- $name_to_ip{$name} = $ip;
} else {
- $ip = $name_to_ip{$name};
+ while ( my ($host,$hostname) = each(%possible_hosts)) {
+ if ($hostdom{$host} eq $domain) {
+ $result{$host} = $hostname;
+ }
+ }
+ }
+ return %result;
+ }
+
+ sub host_domain {
+ &load_hosts_tab() if (!$loaded);
+
+ my ($lonid) = @_;
+ return $hostdom{$lonid};
+ }
+
+ sub all_domains {
+ &load_hosts_tab() if (!$loaded);
+
+ my %seen;
+ my @uniq = grep(!$seen{$_}++, values(%hostdom));
+ return @uniq;
+ }
+}
+
+{
+ my %iphost;
+ sub get_hosts_from_ip {
+ my ($ip) = @_;
+ my %iphosts = &get_iphost();
+ if (ref($iphosts{$ip})) {
+ return @{$iphosts{$ip}};
+ }
+ return;
+ }
+
+ sub get_iphost {
+ if (%iphost) { return %iphost; }
+ my %name_to_ip;
+ my %hostname = &all_hostnames();
+ foreach my $id (keys(%hostname)) {
+ my $name=$hostname{$id};
+ my $ip;
+ if (!exists($name_to_ip{$name})) {
+ $ip = gethostbyname($name);
+ if (!$ip || length($ip) ne 4) {
+ &logthis("Skipping host $id name $name no IP found");
+ next;
+ }
+ $ip=inet_ntoa($ip);
+ $name_to_ip{$name} = $ip;
+ } else {
+ $ip = $name_to_ip{$name};
+ }
+ push(@{$iphost{$ip}},$id);
}
- push(@{$iphost{$ip}},$id);
+ return %iphost;
}
- return %iphost;
}
# ------------------------------------------------------ Read spare server file