X-Git-Url: http://dxcluster.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2Fcluster.pl;h=4a4400a15f45c90fae90a76d36cd0fd515905efa;hb=ca18864d1264fadfe9869b630f05c950876c2169;hp=f1b467321219f222df82efaaffd7dabb8722165c;hpb=ab568d677a2d2243eabee315b3e609c4ea4f73a0;p=spider.git

diff --git a/perl/cluster.pl b/perl/cluster.pl
index f1b46732..4a4400a1 100755
--- a/perl/cluster.pl
+++ b/perl/cluster.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/perl -w
 #
 # This is the DX cluster 'daemon'. It sits in the middle of its little
 # web of client routines sucking and blowing data where it may.
@@ -10,8 +10,12 @@
 # $Id$
 # 
 
+require 5.004;
+
 # make sure that modules are searched in the order local then perl
 BEGIN {
+	umask 002;
+	
 	# root of directory tree for this system
 	$root = "/spider"; 
 	$root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
@@ -19,8 +23,19 @@ BEGIN {
 	unshift @INC, "$root/perl";	# this IS the right way round!
 	unshift @INC, "$root/local";
 
-#	require Exporter;
-#	$Exporter::Verbose = 1;
+	# try to create and lock a lockfile (this isn't atomic but 
+	# should do for now
+	$lockfn = "$root/perl/cluster.lock";       # lock file name
+	if (-e $lockfn) {
+		open(CLLOCK, "$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+		my $pid = <CLLOCK>;
+		chomp $pid;
+		die "Lockfile ($lockfn) and process $pid exist, another cluster running?" if kill 0, $pid;
+		close CLLOCK;
+	}
+	open(CLLOCK, ">$lockfn") or die "Can't open Lockfile ($lockfn) $!";
+	print CLLOCK "$$\n";
+	close CLLOCK;
 }
 
 use Msg;
@@ -42,15 +57,20 @@ use Prefix;
 use Bands;
 use Geomag;
 use CmdAlias;
+use Filter;
+use Local;
+use Fcntl ':flock'; 
+
 use Carp;
 
 package main;
 
 @inqueue = ();					# the main input queue, an array of hashes
 $systime = 0;					# the time now (in seconds)
-$version = 1.5;					# the version no of the software
+$version = "1.25";				# the version no of the software
 $starttime = 0;                 # the starting time of the cluster   
- 
+$lockfn = "cluster.lock";       # lock file name
+      
 # handle disconnections
 sub disconnect
 {
@@ -59,6 +79,18 @@ sub disconnect
 	$dxchan->disconnect();
 }
 
+# send a message to call on conn and disconnect
+sub already_conn
+{
+	my ($conn, $call, $mess) = @_;
+	
+	dbg('chan', "-> D $call $mess\n"); 
+	$conn->send_now("D$call|$mess");
+	sleep(1);
+	dbg('chan', "-> Z $call bye\n");
+	$conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
+}
+
 # handle incoming messages
 sub rec
 {
@@ -74,38 +106,35 @@ sub rec
 	if (!defined $dxchan) {
 		my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 		
-		# is there one already connected?
-		if (DXChannel->get($call)) {
-			my $mess = DXM::msg($lang, 'conother', $call);
-			dbg('chan', "-> D $call $mess\n"); 
-			$conn->send_now("D$call|$mess");
-			sleep(1);
-			dbg('chan', "-> Z $call bye\n");
-			$conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
-			return;
+		# is there one already connected elsewhere in the cluster (and not a cluster)
+		my $user = DXUser->get($call);
+		if ($user) {
+			if (($user->sort eq 'A' || $call eq $myalias) && !DXCluster->get_exact($call)) {
+				;
+			} else {
+				if (DXCluster->get($call) || DXChannel->get($call)) {
+					my $mess = DXM::msg($lang, $user->sort eq 'A' ? 'concluster' : 'conother', $call);
+					already_conn($conn, $call, $mess);
+					return;
+				}
+			}
+			$user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
+		} else {
+			if (DXCluster->get($call)) {
+				my $mess = DXM::msg($lang, 'conother', $call);
+				already_conn($conn, $call, $mess);
+				return;
+			}
+			$user = DXUser->new($call);
 		}
-		
-		# is there one already connected elsewhere in the cluster?
-		if (($call eq $main::myalias && DXCluster->get_exact($call)) ||
-		    DXCluster->get($call)) {
-			my $mess = DXM::msg($lang, 'concluster', $call);
-			dbg('chan', "-> D $call $mess\n"); 
-			$conn->send_now("D$call|$mess");
-			sleep(1);
-			dbg('chan', "-> Z $call bye\n");
+
+		# is he locked out ?
+		if ($user->lockout) {
+			Log('DXCommand', "$call is locked out, disconnected");
 			$conn->send_now("Z$call|bye"); # this will cause 'client' to disconnect
 			return;
 		}
-		
-		# the user MAY have an SSID if local, but otherwise doesn't
-		my $user = DXUser->get($call);
-		if (!defined $user) {
-			$user = DXUser->new($call);
-		} else {
-			$user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
-		}
-		
-		
+
 		# create the channel
 		$dxchan = DXCommandmode->new($call, $conn, $user) if ($user->sort eq 'U');
 		$dxchan = DXProt->new($call, $conn, $user) if ($user->sort eq 'A');
@@ -130,16 +159,32 @@ sub login
 sub cease
 {
 	my $dxchan;
+
+	$SIG{'TERM'} = 'IGNORE';
+	$SIG{'INT'} = 'IGNORE';
+	
+	eval {
+		Local::finish();   # end local processing
+	};
+	dbg('local', "Local::finish error $@") if $@;
+	
 	foreach $dxchan (DXChannel->get_all()) {
-		disconnect($dxchan);
+		disconnect($dxchan) unless $dxchan == $DXProt::me;
 	}
+	Msg->event_loop(1, 0.05);
+	Msg->event_loop(1, 0.05);
+	Msg->event_loop(1, 0.05);
+	Msg->event_loop(1, 0.05);
+	DXUser::finish();
 	Log('cluster', "DXSpider V$version stopped");
+	unlink $lockfn;
 	exit(0);
 }
 
 # the reaper of children
 sub reap
 {
+	$SIG{'CHLD'} = \&reap;
 	my $cpid = wait;
 }
 
@@ -155,13 +200,13 @@ sub process_inqueue
 	my ($sort, $call, $line) = $data =~ /^(\w)(\S+)\|(.*)$/;
 	
 	# do the really sexy console interface bit! (Who is going to do the TK interface then?)
-	dbg('chan', "<- $sort $call $line\n");
+	dbg('chan', "<- $sort $call $line\n") unless $sort eq 'D';
 	
 	# handle A records
 	my $user = $dxchan->user;
 	if ($sort eq 'A' || $sort eq 'O') {
 		$dxchan->start($line, $sort);  
-	} elsif ($sort eq 'D') {
+	} elsif ($sort eq 'I') {
 		die "\$user not defined for $call" if !defined $user;
 		
 		# normal input
@@ -170,6 +215,8 @@ sub process_inqueue
 		disconnect($dxchan) if ($dxchan->{state} eq 'bye');
 	} elsif ($sort eq 'Z') {
 		disconnect($dxchan);
+	} elsif ($sort eq 'D') {
+		;                       # ignored (an echo)
 	} else {
 		print STDERR atime, " Unknown command letter ($sort) received from $call\n";
 	}
@@ -214,7 +261,7 @@ Bands::load();
 
 # initialise User file system
 print "loading user file system ...\n"; 
-DXUser->init($userfn);
+DXUser->init($userfn, 1);
 
 # start listening for incoming messages/connects
 print "starting listener ...\n";
@@ -232,27 +279,39 @@ DXM->init();
 # read in command aliases
 CmdAlias->init();
 
-# initialise the protocol engine
-DXProt->init();
-
 # initialise the Geomagnetic data engine
 Geomag->init();
 
 # initial the Spot stuff
 Spot->init();
 
+# initialise the protocol engine
+print "reading in duplicate spot and WWV info ...\n";
+DXProt->init();
+
+
 # put in a DXCluster node for us here so we can add users and take them away
 DXNode->new(0, $mycall, 0, 1, $DXProt::myprot_version); 
 
 # read in any existing message headers and clean out old crap
-print "reading existing message headers\n";
+print "reading existing message headers ...\n";
 DXMsg->init();
 DXMsg::clean_old();
 
 # read in any cron jobs
-print "reading cron jobs\n";
+print "reading cron jobs ...\n";
 DXCron->init();
 
+# starting local stuff
+print "doing local initialisation ...\n";
+eval {
+	Local::init();
+};
+dbg('local', "Local::init error $@") if $@;
+
+# print various flags
+#print "useful info - \$^D: $^D \$^W: $^W \$^S: $^S \$^P: $^P\n";
+
 # this, such as it is, is the main loop!
 print "orft we jolly well go ...\n";
 for (;;) {
@@ -270,10 +329,16 @@ for (;;) {
 		DXCommandmode::process(); # process ongoing command mode stuff
 		DXProt::process();		# process ongoing ak1a pcxx stuff
 		DXConnect::process();
+		eval { 
+			Local::process();       # do any localised processing
+		};
+		dbg('local', "Local::process error $@") if $@;
 	}
 	if ($decease) {
 		last if --$decease <= 0;
 	}
 }
+cease(0);
+exit(0);