--- loncom/loncron 2018/12/22 20:05:16 1.116 +++ loncom/loncron 2019/07/18 18:28:40 1.119 @@ -2,7 +2,7 @@ # Housekeeping program, started by cron, loncontrol and loncron.pl # -# $Id: loncron,v 1.116 2018/12/22 20:05:16 raeburn Exp $ +# $Id: loncron,v 1.119 2019/07/18 18:28:40 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -45,6 +45,7 @@ use Getopt::Long; use GDBM_File; use Storable qw(thaw); use File::ReadBackwards; +use File::Copy; #globals use vars qw (%perlvar %simplestatus $errors $warnings $notices $totalcount); @@ -566,6 +567,34 @@ sub clean_webDAV_sessionIDs { } } +# ------------------------------------------------------------ clean out ltiIDs + +sub clean_ltiIDs { + my ($fh)=@_; + &log($fh,'

LTI Session Pointers

'); + my $cleaned=0; + my $active=0; + if (-d $perlvar{'ltiIDsDir'}) { + while (my $fname=<$perlvar{'ltiIDsDir'}/*>) { + my ($dev,$ino,$mode,$nlink, + $uid,$gid,$rdev,$size, + $atime,$mtime,$ctime, + $blksize,$blocks)=stat($fname); + my $now=time; + my $since=$now-$mtime; + if ($since>$perlvar{'lonExpire'}) { + $cleaned++; + &log($fh,"Unlinking $fname
"); + unlink("$fname"); + } else { + $active++; + } + } + } + &log($fh,"

Cleaned up ".$cleaned." old LTI session pointers.

"); + &log($fh,"

$active unexpired LTI session pointers

"); +} + # ----------------------------------------------------------- clean out sockets sub clean_sockets { my ($fh)=@_; @@ -1027,6 +1056,94 @@ sub write_checksums { return; } +sub write_hostips { + my $lontabdir = $perlvar{'lonTabDir'}; + my $defdom = $perlvar{'lonDefDomain'}; + my $lonhost = $perlvar{'lonHostID'}; + my $newfile = "$lontabdir/currhostips.tab"; + my $oldfile = "$lontabdir/prevhostips.tab"; + my (%prevhosts,%currhosts,%ipchange); + if ((-e $newfile) && (-s $newfile)) { + move($newfile,$oldfile); + chmod(0644,$oldfile); + if (open(my $fh,'<',$oldfile)) { + while (my $line=<$fh>) { + chomp($line); + if ($line =~ /^([^:]+):([\d.]+)$/) { + $prevhosts{$1} = $2; + } + } + close($fh); + } + } + my ($ip_info,$cached) = + &Apache::lonnet::is_cached_new('iphost','iphost'); + if (!$cached) { + &Apache::lonnet::get_iphost(); + ($ip_info,$cached) = + &Apache::lonnet::is_cached_new('iphost','iphost'); + } + if (ref($ip_info) eq 'ARRAY') { + %currhosts = %{$ip_info->[1]}; + if (open(my $fh,'>',$newfile)) { + foreach my $key (keys(%currhosts)) { + print $fh "$key:$currhosts{$key}\n"; + } + close($fh); + chmod(0644,$newfile); + } + } + if (keys(%prevhosts) && keys(%currhosts)) { + foreach my $key (keys(%prevhosts)) { + unless ($currhosts{$key} eq $prevhosts{$key}) { + $ipchange{$key} = $prevhosts{$key}.'|'.$currhosts{$key}; + } + } + foreach my $key (keys(%currhosts)) { + unless ($currhosts{$key} eq $prevhosts{$key}) { + $ipchange{$key} = $prevhosts{$key}.' | '.$currhosts{$key}; + } + } + } + if (&Apache::lonnet::domain($defdom,'primary') eq $lonhost) { + if (keys(%ipchange)) { + if (open(my $fh,'>>',$perlvar{'lonDaemons'}.'/logs/hostip.log')) { + print $fh "********************\n".localtime(time).' Changes --'."\n". + "Hostname | Previous IP | New IP\n". + "--------------------------------\n"; + foreach my $hostname (sort(keys(%ipchange))) { + print $fh "$hostname | $ipchange{$hostname}\n"; + } + print $fh "\n*******************\n\n"; + close($fh); + } + my $emailto = &Apache::loncommon::build_recipient_list(undef, + 'hostipmail',$defdom); + if ($emailto) { + my $subject = "LON-CAPA Hostname to IP change ($perlvar{'lonHostID'})"; + my $chgmail = "To: $emailto\n". + "Subject: $subject\n". + "Content-type: text/plain\; charset=UTF-8\n". + "MIME-Version: 1.0\n\n". + "Host/IP changes\n". + " \n". + "Hostname | Previous IP | New IP\n". + "--------------------------------\n"; + foreach my $hostname (sort(keys(%ipchange))) { + $chgmail .= "$hostname | $ipchange{$hostname}\n"; + } + $chgmail .= "\n\n"; + if (open(my $mailh, "|/usr/lib/sendmail -oi -t -odb")) { + print $mailh $chgmail; + close($mailh); + print "Sending mail notification of hostname/IP changes.\n"; + } + } + } + } + return; +} + sub clean_nosslverify { my ($fh) = @_; my %unlinked; @@ -1397,19 +1514,23 @@ Options: do not send emails do not check if the daemons are running, do not generate lon-status - + --justiptables Only update the dynamic iptables rules for the + lond port; do not send emails, do not + check if the daemons are running, do not + generate lon-status USAGE } # ================================================================ Main Program sub main () { my ($help,$justcheckdaemons,$noemail,$justcheckconnections, - $justreload); + $justreload,$justiptables); &GetOptions("help" => \$help, "justcheckdaemons" => \$justcheckdaemons, "noemail" => \$noemail, "justcheckconnections" => \$justcheckconnections, - "justreload" => \$justreload + "justreload" => \$justreload, + "justiptables" => \$justiptables ); if ($help) { &usage(); return; } # --------------------------------- Read loncapa_apache.conf and loncapa.conf @@ -1459,9 +1580,11 @@ sub main () { } } } - &Apache::lonnet::load_hosts_tab(1,$nomemcache); - &Apache::lonnet::load_domain_tab(1,$nomemcache); - &Apache::lonnet::get_iphost(1,$nomemcache); + if (!$justiptables) { + &Apache::lonnet::load_hosts_tab(1,$nomemcache); + &Apache::lonnet::load_domain_tab(1,$nomemcache); + &Apache::lonnet::get_iphost(1,$nomemcache); + } # ----------------------------------------- Force firewall update for lond port @@ -1492,7 +1615,7 @@ sub main () { my $fh; - if (!$justcheckdaemons && !$justcheckconnections && !$justreload) { + if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) { $fh=&start_logging(); &log_machine_info($fh); @@ -1500,11 +1623,12 @@ sub main () { &clean_lonIDs($fh); &clean_balanceIDs($fh); &clean_webDAV_sessionIDs($fh); + &clean_ltiIDs($fh); &check_httpd_logs($fh); &rotate_lonnet_logs($fh); &rotate_other_logs($fh); } - if (!$justcheckconnections && !$justreload) { + if (!$justcheckconnections && !$justreload && !$justiptables) { &checkon_daemon($fh,'lonmemcached',40000); &checkon_daemon($fh,'lonsql',200000); if ( &checkon_daemon($fh,'lond',40000,'USR1') eq 'running') { @@ -1525,7 +1649,7 @@ sub main () { if ($justcheckconnections) { &test_connections($fh); } - if (!$justcheckdaemons && !$justcheckconnections && !$justreload) { + if (!$justcheckdaemons && !$justcheckconnections && !$justreload && !$justiptables) { my $domconf = &get_domain_config(); my ($threshold,$sysmail,$reportstatus,$weightsref,$exclusionsref) = &get_permcount_settings($domconf); @@ -1533,6 +1657,7 @@ sub main () { &write_loncaparevs(); &write_serverhomeIDs(); &write_checksums(); + &write_hostips(); my %sslrem = &clean_nosslverify($fh); my %conchgs = &write_connection_config(); my %hosttypechgs = &write_hosttypes();