--- loncom/lonnet/perl/lonnet.pm 2007/03/03 01:33:10 1.841
+++ loncom/lonnet/perl/lonnet.pm 2007/03/28 00:12:58 1.852
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.841 2007/03/03 01:33:10 albertel Exp $
+# $Id: lonnet.pm,v 1.852 2007/03/28 00:12:58 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 $_64bit %env);
use IO::Socket;
@@ -146,6 +144,20 @@ sub logperm {
return 1;
}
+sub create_connection {
+ my ($server) = @_;
+ my $client=IO::Socket::UNIX->new(Peer => $perlvar{'lonSockCreate'},
+ Type => SOCK_STREAM,
+ Timeout => 10);
+ return 0 if (!$client);
+ print $client ("$server\n");
+ my $result = <$client>;
+ chomp($result);
+ return 1 if ($result eq 'done');
+ return 0;
+}
+
+
# -------------------------------------------------- Non-critical communication
sub subreply {
my ($cmd,$server)=@_;
@@ -172,8 +184,10 @@ sub subreply {
Timeout => 10);
if($client) {
last; # Connected!
+ } else {
+ &create_connection(&hostname($server));
}
- sleep(1); # Try again later if failed connection.
+ sleep(1); # Try again later if failed connection.
}
my $answer;
if ($client) {
@@ -727,8 +741,8 @@ 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 && $pairs[0] =~ /^(con_lost|error|no_such_host)/i) {
@@ -751,8 +765,8 @@ sub get_dom {
sub put_dom {
my ($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{$item}).'&';
@@ -767,8 +781,8 @@ sub put_dom {
sub retrieve_inst_usertypes {
my ($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);
@@ -1012,10 +1026,16 @@ 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});
@@ -1023,7 +1043,7 @@ 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()];
@@ -1046,7 +1066,7 @@ 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__';
@@ -1842,7 +1862,7 @@ sub flushcourselogs {
# Is used in pickcourse
#
foreach my $crs_home (keys(%courseidbuffer)) {
- &courseidput($hostdom{$crs_home},$courseidbuffer{$crs_home},
+ &courseidput(&host_domain($crs_home),$courseidbuffer{$crs_home},
$crs_home);
}
#
@@ -2097,7 +2117,7 @@ sub get_my_roles {
sub postannounce {
my ($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),$server);
}
@@ -2133,11 +2153,16 @@ sub courseiddump {
my ($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),
$tryserver))) {
@@ -2165,12 +2190,13 @@ sub dcmailput {
sub dcmaildump {
my ($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($value);
@@ -4170,6 +4196,7 @@ sub definerole {
sub metadata_query {
my ($query,$custom,$customshow,$server_array)=@_;
my %rhash;
+ my %libserv = &all_library();
my @server_list = (defined($server_array) ? @$server_array
: keys(%libserv) );
for my $server (@server_list) {
@@ -4811,7 +4838,7 @@ sub modifyuser {
if (($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'};
@@ -5038,7 +5065,7 @@ 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
@@ -6171,7 +6198,8 @@ 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]);
}
}
@@ -7404,7 +7432,7 @@ sub current_machine_domains {
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;
@@ -7559,112 +7587,202 @@ 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 (!$loaded);
+
return %hostname;
}
+
+ sub is_library {
+ &load_hosts_tab() if (!$loaded);
+
+ return exists($libserv{$_[0]});
+ }
+
+ sub all_library {
+ &load_hosts_tab() if (!$loaded);
+
+ return %libserv;
+ }
+
sub get_servers {
+ &load_hosts_tab() if (!$loaded);
+
my ($domain,$type) = @_;
my %possible_hosts = ($type eq 'library') ? %libserv
: %hostname;
my %result;
- while ( my ($host,$hostname) = each(%possible_hosts)) {
- if ($hostdom{$host} eq $domain) {
- $result{$host} = $hostname;
+ if (ref($domain) eq 'ARRAY') {
+ while ( my ($host,$hostname) = each(%possible_hosts)) {
+ if (grep(/^\Q$hostdom{$host}\E$/,@$domain)) {
+ $result{$host} = $hostname;
+ }
+ }
+ } else {
+ while ( my ($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{$_}++, values(%hostdom));
return @uniq;
}
}
-sub get_hosts_from_ip {
- my ($ip) = @_;
- my %iphosts = &get_iphost();
- if (ref($iphosts{$ip})) {
- return @{$iphosts{$ip}};
+{
+ my %iphost;
+ sub get_hosts_from_ip {
+ my ($ip) = @_;
+ my %iphosts = &get_iphost();
+ if (ref($iphosts{$ip})) {
+ return @{$iphosts{$ip}};
+ }
+ return;
}
- 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 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};
}
- $ip=inet_ntoa($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