X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXProt.pm;h=0d137e529bd3710f7dd391eadf9ee126f4fe0083;hb=f0ac8322367c66080b6dbb74da4de72dae126dc3;hp=b21a4b587ded315c75f024446e96224b94ff5a5a;hpb=56b610b0ed32b6d10122bca7554ce7a11251cdaa;p=spider.git

diff --git a/perl/DXProt.pm b/perl/DXProt.pm
index b21a4b58..0d137e52 100644
--- a/perl/DXProt.pm
+++ b/perl/DXProt.pm
@@ -9,45 +9,1143 @@
 
 package DXProt;
 
+@ISA = qw(DXChannel);
+
 use DXUtil;
 use DXChannel;
 use DXUser;
 use DXM;
+use DXCluster;
+use DXProtVars;
+use DXCommandmode;
+use DXLog;
+use Spot;
+use DXProtout;
+use DXDebug;
+use Filter;
+use Local;
+
+use Carp;
+
+use strict;
+use vars qw($me $pc11_max_age $pc11_dup_age $pc23_dup_age 
+			%spotdup %wwvdup $last_hour %pings %rcmds 
+			%nodehops @baddx $baddxfn $pc12_dup_age
+			%anndup $allowzero);
+
+$me = undef;					# the channel id for this cluster
+$pc11_max_age = 1*3600;			# the maximum age for an incoming 'real-time' pc11
+$pc11_dup_age = 24*3600;		# the maximum time to keep the spot dup list for
+$pc23_dup_age = 24*3600;		# the maximum time to keep the wwv dup list for
+$pc12_dup_age = 24*3600;		# the maximum time to keep the ann dup list for
+%spotdup = ();				    # the pc11 and 26 dup hash 
+%wwvdup = ();				    # the pc23 and 27 dup hash
+%anndup = ();                               # the PC12 dup hash
+$last_hour = time;				# last time I did an hourly periodic update
+%pings = ();                    # outstanding ping requests outbound
+%rcmds = ();                    # outstanding rcmd requests outbound
+%nodehops = ();                 # node specific hop control
+@baddx = ();                    # list of illegal spotted callsigns
+
+$baddxfn = "$main::data/baddx.pl";
+
+sub init
+{
+	my $user = DXUser->get($main::mycall);
+	$DXProt::myprot_version += $main::version*100;
+	$me = DXProt->new($main::mycall, 0, $user); 
+	$me->{here} = 1;
+	$me->{state} = "indifferent";
+	do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
+	confess $@ if $@;
+	#  $me->{sort} = 'M';    # M for me
+
+	# now prime the spot duplicates file with today's and yesterday's data
+    my @today = Julian::unixtoj(time);
+	my @spots = Spot::readfile(@today);
+	@today = Julian::sub(@today, 1);
+	push @spots, Spot::readfile(@today);
+	for (@spots) {
+		my $dupkey = "$_->[0]$_->[1]$_->[2]$_->[3]$_->[4]";
+		$spotdup{$dupkey} = $_->[2];
+	}
+
+	# now prime the wwv duplicates file with just this month's data
+	my @wwv = Geomag::readfile(time);
+	for (@wwv) {
+		my $dupkey = "$_->[1].$_->[2]$_->[3]$_->[4]";
+		$wwvdup{$dupkey} = $_->[1];
+	}
+
+	# load the baddx file
+	do "$baddxfn" if -e "$baddxfn";
+	print "$@\n" if $@;
+}
+
+#
+# obtain a new connection this is derived from dxchannel
+#
+
+sub new 
+{
+	my $self = DXChannel::alloc(@_);
+	$self->{'sort'} = 'A';		# in absence of how to find out what sort of an object I am
+	return $self;
+}
 
 # this is how a pc connection starts (for an incoming connection)
 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 # all the crap that comes between).
-sub pc_start
+sub start
 {
-  my $self = shift;
-  $self->{normal} = \&pc_normal;
-  $self->{finish} = \&pc_finish;
+	my ($self, $line, $sort) = @_;
+	my $call = $self->{call};
+	my $user = $self->{user};
+	
+	# remember type of connection
+	$self->{consort} = $line;
+	$self->{outbound} = $sort eq 'O';
+	$self->{priv} = $user->priv;
+	$self->{lang} = $user->lang;
+	$self->{isolate} = $user->{isolate};
+	$self->{consort} = $line;	# save the connection type
+	$self->{here} = 1;
+
+	# get the filters
+	$self->{spotfilter} = Filter::read_in('spots', $call);
+	$self->{wwvfilter} = Filter::read_in('wwv', $call);
+	$self->{annfilter} = Filter::read_in('ann', $call);
+	
+	# set unbuffered and no echo
+	$self->send_now('B',"0");
+	$self->send_now('E',"0");
+	
+	# send initialisation string
+	if (!$self->{outbound}) {
+		$self->send(pc38()) if DXNode->get_all();
+		$self->send(pc18());
+	}
+	$self->state('init');
+	$self->pc50_t(time);
+
+	Log('DXProt', "$call connected");
 }
 
 #
 # This is the normal pcxx despatcher
 #
-sub pc_normal
+sub normal
 {
+	my ($self, $line) = @_;
+	my @field = split /\^/, $line;
+	pop @field if $field[-1] eq '~';
+	
+#	print join(',', @field), "\n";
+						
+	# ignore any lines that don't start with PC
+	return if !$field[0] =~ /^PC/;
+	
+	# process PC frames
+	my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
+	return unless $pcno;
+	return if $pcno < 10 || $pcno > 51;
+	
+	# local processing 1
+	my $pcr;
+	eval {
+		$pcr = Local::pcprot($self, $pcno, @field);
+	};
+#	dbg('local', "Local::pcprot error $@") if $@;
+	return if $pcr;
+	
+ SWITCH: {
+		if ($pcno == 10) {		# incoming talk
+			
+			# is it for me or one of mine?
+			my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
+			if ($call eq $main::mycall || grep $_ eq $call, get_all_user_calls()) {
+				
+				# yes, it is
+				my $text = unpad($field[3]);
+				Log('talk', $call, $field[1], $field[6], $text);
+				$call = $main::myalias if $call eq $main::mycall;
+				my $ref = DXChannel->get($call);
+				$ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
+			} else {
+				route($field[2], $line); # relay it on its way
+			}
+			return;
+		}
+		
+		if ($pcno == 11 || $pcno == 26) { # dx spot
+
+			# route 'foreign' pc26s 
+			if ($pcno == 26) {
+				if ($field[7] ne $main::mycall) {
+					route($field[7], $line);
+					return;
+				}
+			}
+			
+			# if this is a 'nodx' node then ignore it
+			last SWITCH if grep $field[7] =~ /^$_/,  @DXProt::nodx_node;
+			
+			# convert the date to a unix date
+			my $d = cltounix($field[3], $field[4]);
+			# bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
+			if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
+				dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
+				return;
+			}
+
+			# strip off the leading & trailing spaces from the comment
+			my $text = unpad($field[5]);
+			
+			# store it away
+			my $spotter = $field[6];
+			$spotter =~ s/-\d+$//o;	# strip off the ssid from the spotter
+			
+			# do some de-duping
+			my $freq = $field[1] - 0;
+			my $dupkey = "$freq$field[2]$d$text$spotter";
+			if ($spotdup{$dupkey}) {
+				dbg('chan', "Duplicate Spot ignored\n");
+				return;
+			}
+			
+			$spotdup{$dupkey} = $d;
+
+			# is it 'baddx'
+			if (grep $field[2] eq $_, @baddx) {
+				dbg('chan', "Bad DX spot, ignored");
+				return;
+			}
+			
+			my @spot = Spot::add($freq, $field[2], $d, $text, $spotter, $field[7]);
+
+            #
+			# @spot at this point contains:-
+            # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
+			# then  spotted itu, spotted cq, spotters itu, spotters cq
+			# you should be able to route on any of these
+            #
+			
+			# local processing 
+			my $r;
+			eval {
+				$r = Local::spot($self, @spot);
+			};
+#			dbg('local', "Local::spot1 error $@") if $@;
+			return if $r;
+
+			# DON'T be silly and send on PC26s!
+			return if $pcno == 26;
+
+			# send out the filtered spots
+			send_dx_spot($self, $line, @spot) if @spot;
+			return;
+		}
+		
+		if ($pcno == 12) {		# announces
+		        # announce duplicate checking
+			my $text = uc unpad($field[3]);
+			my $dupkey = $field[1].$field[2].$text.$field[4].$field[6];
+			if ($anndup{$dupkey}) {
+				dbg('chan', "Duplicate Announce ignored\n");
+				return;
+			}
+			$anndup{$dupkey} = $main::systime;
+			
+			# global ann filtering
+			my ($filter, $hops) = Filter::it($self->{annfilter}, @field[1..6], $self->{call} ) if $self->{annfilter};
+			if ($self->{annfilter} && !$filter) {
+			        dbg('chan', "Rejected by filter");
+				return;
+			}
+			
+			if ($field[2] eq '*' || $field[2] eq $main::mycall) {
+				
+				# strip leading and trailing stuff
+				my $text = unpad($field[3]);
+				my $target;
+				my $to = 'To ';
+				my @list;
+				
+				if ($field[4] eq '*') {	# sysops
+					$target = "SYSOP";
+					@list = map { $_->priv >= 5 ? $_ : () } get_all_users();
+				} elsif ($field[4] gt ' ') { # speciality list handling
+					my ($name) = split /\./, $field[4]; 
+					$target = "$name"; # put the rest in later (if bothered) 
+				} 
+				
+				if ($field[6] eq '1') {
+					$target = "WX"; 
+					$to = '';
+				}
+				$target = "All" if !$target;
+				
+				if (@list > 0) {
+					broadcast_list("$to$target de $field[1]: $text", 'ann', undef, @list);
+				} else {
+					broadcast_users("$target de $field[1]: $text", 'ann', undef);
+				}
+				Log('ann', $target, $field[1], $text);
+				
+				return if $field[2] eq $main::mycall; # it's routed to me
+			} else {
+				route($field[2], $line);
+				return;			# only on a routed one
+			}
+			
+			last SWITCH;
+		}
+		
+		if ($pcno == 13) {
+			last SWITCH;
+		}
+		if ($pcno == 14) {
+			last SWITCH;
+		}
+		if ($pcno == 15) {
+			last SWITCH;
+		}
+		
+		if ($pcno == 16) {		# add a user
+			my $node = DXCluster->get_exact($field[1]); 
+			return unless $node; # ignore if havn't seen a PC19 for this one yet
+			return unless $node->isa('DXNode');
+			if ($node->dxchan != $self) {
+				dbg('chan', "LOOP: $field[1] came in on wrong channel");
+				return;
+			}
+			my $dxchan;
+			if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
+				dbg('chan', "LOOP: $field[1] connected locally");
+				return;
+			}
+			my $i;
+			
+			
+			for ($i = 2; $i < $#field; $i++) {
+				my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
+				next if !$call || length $call < 3 || length $call > 8;
+				next if !$confmode;
+				$call = uc $call;
+				next if DXCluster->get_exact($call); # we already have this (loop?)
+				
+				$confmode = $confmode eq '*';
+				DXNodeuser->new($self, $node, $call, $confmode, $here);
+				
+				# add this station to the user database, if required
+				$call =~ s/-\d+$//o;        # remove ssid for users
+				my $user = DXUser->get_current($call);
+				$user = DXUser->new($call) if !$user;
+				$user->homenode($node->call) if !$user->homenode;
+				$user->node($node->call);
+				$user->lastin($main::systime) unless DXChannel->get($call);
+				$user->put;
+			}
+			
+			# queue up any messages (look for privates only)
+			DXMsg::queue_msg(1) if $self->state eq 'normal';     
+			last SWITCH;
+		}
+		
+		if ($pcno == 17) {		# remove a user
+			my $node = DXCluster->get_exact($field[2]);
+			return unless $node;
+			return unless $node->isa('DXNode');
+			if ($node->dxchan != $self) {
+				dbg('chan', "LOOP: $field[2] came in on wrong channel");
+				return;
+			}
+			my $dxchan;
+			if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
+				dbg('chan', "LOOP: $field[2] connected locally");
+				return;
+			}
+			my $ref = DXCluster->get_exact($field[1]);
+			$ref->del() if $ref;
+			last SWITCH;
+		}
+		
+		if ($pcno == 18) {		# link request
+			$self->state('init');	
+
+			# first clear out any nodes on this dxchannel
+			my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
+			foreach my $node (@gonenodes) {
+				next if $node->dxchan == $DXProt::me;
+				broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate}; 
+				$node->del();
+			}
+			$self->send_local_config();
+			$self->send(pc20());
+			return;             # we don't pass these on
+		}
+		
+		if ($pcno == 19) {		# incoming cluster list
+			my $i;
+			my $newline = "PC19^";
+			for ($i = 1; $i < $#field-1; $i += 4) {
+				my $here = $field[$i];
+				my $call = uc $field[$i+1];
+				my $confmode = $field[$i+2];
+				my $ver = $field[$i+3];
+
+				$ver = 5400 if !$ver && $allowzero;
+				
+				# now check the call over
+				my $node = DXCluster->get_exact($call);
+				if ($node) {
+					my $dxchan;
+					if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
+						dbg('chan', "LOOP: $call connected locally");
+					}
+				    if ($node->dxchan != $self) {
+						dbg('chan', "LOOP: $call come in on wrong channel");
+						next;
+					}
+					dbg('chan', "already have $call");
+					next;
+				}
+				
+				# check for sane parameters
+				next if $ver < 5000; # only works with version 5 software
+				next if length $call < 3; # min 3 letter callsigns
 
+				# add it to the nodes table and outgoing line
+				$newline .= "$here^$call^$confmode^$ver^";
+				DXNode->new($self, $call, $confmode, $here, $ver);
+				
+				# unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
+				my $mref = DXMsg::get_busy($call);
+				$mref->stop_msg($self) if $mref;
+				
+				# add this station to the user database, if required (don't remove SSID from nodes)
+				my $user = DXUser->get_current($call);
+				if (!$user) {
+					$user = DXUser->new($call);
+					$user->sort('A');
+					$user->priv(1);                   # I have relented and defaulted nodes
+					$self->{priv} = 1;                # to user RCMDs allowed
+					$user->homenode($call);
+					$user->node($call);
+				}
+				$user->lastin($main::systime) unless DXChannel->get($call);
+				$user->put;
+			}
+			
+			# queue up any messages
+			DXMsg::queue_msg(0) if $self->state eq 'normal';
+			return if $newline eq "PC19^";
+
+			# add hop count 
+			$newline .=  get_hops(19) . "^";
+			$line = $newline;
+			last SWITCH;
+		}
+		
+		if ($pcno == 20) {		# send local configuration
+			$self->send_local_config();
+			$self->send(pc22());
+			$self->state('normal');
+			
+			# queue mail
+			DXMsg::queue_msg(0);
+
+			return;
+		}
+		
+		if ($pcno == 21) {		# delete a cluster from the list
+			my $call = uc $field[1];
+			if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
+				my $node = DXCluster->get_exact($call);
+				if ($node) {
+					if ($node->dxchan != $self) {
+						dbg('chan', "LOOP: $call come in on wrong channel");
+						return;
+					}
+					my $dxchan;
+					if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
+						dbg('chan', "LOOP: $call connected locally");
+						return;
+					}
+					$node->del();
+				} else {
+					dbg('chan', "$call not in table, dropped");
+					return;
+				}
+			}
+			last SWITCH;
+		}
+		
+		if ($pcno == 22) {
+			$self->state('normal');
+			
+			# queue mail
+			DXMsg::queue_msg(0);
+			return;
+		}
+		
+		if ($pcno == 23 || $pcno == 27) { # WWV info
+			
+			# route 'foreign' pc27s 
+			if ($pcno == 27) {
+				if ($field[8] ne $main::mycall) {
+					route($field[8], $line);
+					return;
+				}
+			}
+
+			# do some de-duping
+			my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
+			my $sfi = unpad($field[3]);
+			my $k = unpad($field[4]);
+			my $i = unpad($field[5]);
+			my $dupkey = "$d.$sfi$k$i";
+			if ($wwvdup{$dupkey}) {
+				dbg('chan', "Dup WWV Spot ignored\n");
+				return;
+			}
+			if ($d > $main::systime + 900 || $field[2] < 0 || $field[2] > 23) {
+				dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
+				return;
+			}
+			$wwvdup{$dupkey} = $d;
+			$field[6] =~ s/-\d+$//o;            # remove spotter's ssid
+		
+			my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8]);
+
+			my $r;
+			eval {
+				$r = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8]);
+			};
+#			dbg('local', "Local::wwv2 error $@") if $@;
+			return if $r;
+
+			# DON'T be silly and send on PC27s!
+			return if $pcno == 27;
+
+			# broadcast to the eager world
+			send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
+			return;
+		}
+		
+		if ($pcno == 24) {		# set here status
+			my $call = uc $field[1];
+			my $ref = DXCluster->get_exact($call);
+			$ref->here($field[2]) if $ref;
+			last SWITCH;
+		}
+		
+		if ($pcno == 25) {      # merge request
+			if ($field[1] ne $main::mycall) {
+				route($field[1], $line);
+				return;
+			}
+			if ($field[2] eq $main::mycall) {
+				dbg('chan', "Trying to merge to myself, ignored");
+				return;
+			}
+
+			Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
+			
+			# spots
+			if ($field[3] > 0) {
+				my @in = reverse Spot::search(1, undef, undef, 0, $field[3]-1);
+				my $in;
+				foreach $in (@in) {
+					$self->send(pc26(@{$in}[0..4], $field[2]));
+				}
+			}
+
+			# wwv
+			if ($field[4] > 0) {
+				my @in = reverse Geomag::search(0, $field[4], time, 1);
+				my $in;
+				foreach $in (@in) {
+					$self->send(pc27(@{$in}[0..5], $field[2]));
+				}
+			}
+			return;
+		}
+
+		if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
+			if ($field[1] eq $main::mycall) {
+				DXMsg::process($self, $line);
+			} else {
+				route($field[1], $line);
+			}
+			return;
+		}
+		
+		if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
+			if ($field[1] eq $main::mycall) {
+				my $ref = DXUser->get_current($field[2]);
+				my $cref = DXCluster->get($field[2]);
+				Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
+				unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
+					if ($ref->{priv}) {	# you have to have SOME privilege, the commands have further filtering
+						$self->{remotecmd} = 1; # for the benefit of any command that needs to know
+						my $oldpriv = $self->{priv};
+						$self->{priv} = $ref->{priv};     # assume the user's privilege level
+						my @in = (DXCommandmode::run_cmd($self, $field[3]));
+						$self->{priv} = $oldpriv;
+						for (@in) {
+							s/\s*$//og;
+							$self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
+							Log('rcmd', 'out', $field[2], $_);
+						}
+						delete $self->{remotecmd};
+					} else {
+						$self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
+					}
+				} else {
+					$self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
+				}
+			} else {
+				route($field[1], $line);
+			}
+			return;
+		}
+		
+		if ($pcno == 35) {		# remote command replies
+			if ($field[1] eq $main::mycall) {
+				my $s = $rcmds{$field[2]};
+				if ($s) {
+					my $dxchan = DXChannel->get($s->{call});
+					$dxchan->send($field[3]) if $dxchan;
+					delete $rcmds{$field[2]} if !$dxchan;
+				}
+			} else {
+				route($field[1], $line);
+			}
+			return;
+		}
+		
+		# for pc 37 see 44 onwards
+
+		if ($pcno == 38) {		# node connected list from neighbour
+			return;
+		}
+		
+		if ($pcno == 39) {		# incoming disconnect
+			$self->disconnect();
+			return;
+		}
+		
+		if ($pcno == 41) {		# user info
+			# add this station to the user database, if required
+			my $user = DXUser->get_current($field[1]);
+			if (!$user) {
+				# then try without an SSID
+				$field[1] =~ s/-\d+$//o;
+				$user = DXUser->get_current($field[1]);
+			}
+			$user = DXUser->new($field[1]) if !$user;
+			
+			if ($field[2] == 1) {
+				$user->name($field[3]);
+			} elsif ($field[2] == 2) {
+				$user->qth($field[3]);
+			} elsif ($field[2] == 3) {
+				my ($lat, $long) = DXBearing::stoll($field[3]);
+				$user->lat($lat);
+				$user->long($long);
+			} elsif ($field[2] == 4) {
+				$user->homenode($field[3]);
+			}
+			$user->put;
+			last SWITCH;
+		}
+		if ($pcno == 43) {
+			last SWITCH;
+		}
+		if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 49) {
+			if ($field[1] eq $main::mycall) {
+				;
+			} else {
+				route($field[1], $line);
+			}
+			return;
+		}
+		
+		if ($pcno == 50) {		# keep alive/user list
+			my $node = DXCluster->get_exact($field[1]);
+			if ($node) {
+				return unless $node->isa('DXNode');
+				return unless $node->dxchan == $self;
+				$node->update_users($field[2]);
+			}
+			last SWITCH;
+		}
+		
+		if ($pcno == 51) {		# incoming ping requests/answers
+			
+			# is it for us?
+			if ($field[1] eq $main::mycall) {
+				my $flag = $field[3];
+				if ($flag == 1) {
+					$self->send(pc51($field[2], $field[1], '0'));
+				} else {
+					# it's a reply, look in the ping list for this one
+					my $ref = $pings{$field[2]};
+					if ($ref) {
+						my $r = shift @$ref;
+						my $dxchan = DXChannel->get($r->{call});
+						$dxchan->send($dxchan->msg('pingi', $field[2], atime($main::systime), $main::systime - $r->{t})) if $dxchan;
+					}
+				}
+				
+			} else {
+				# route down an appropriate thingy
+				route($field[1], $line);
+			}
+			return;
+		}
+	}
+	 
+	 # if get here then rebroadcast the thing with its Hop count decremented (if
+	 # there is one). If it has a hop count and it decrements to zero then don't
+	 # rebroadcast it.
+	 #
+	 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
+	 #        REBROADCAST!!!!
+	 #
+	 
+	if (!$self->{isolate}) {
+		broadcast_ak1a($line, $self); # send it to everyone but me
+	}
 }
 
 #
 # This is called from inside the main cluster processing loop and is used
 # for despatching commands that are doing some long processing job
 #
-sub pc_process
+sub process
 {
-
+	my $t = time;
+	my @dxchan = DXChannel->get_all();
+	my $dxchan;
+	
+	foreach $dxchan (@dxchan) {
+		next unless $dxchan->is_ak1a();
+		next if $dxchan == $me;
+		
+		# send a pc50 out on this channel
+		if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
+			$dxchan->send(pc50());
+			$dxchan->pc50_t($t);
+		}
+	}
+	
+	my $key;
+	my $val;
+	my $cutoff;
+	if ($main::systime - 3600 > $last_hour) {
+		$cutoff  = $main::systime - $pc11_dup_age;
+		while (($key, $val) = each %spotdup) {
+			delete $spotdup{$key} if $val < $cutoff;
+		}
+		$cutoff = $main::systime - $pc23_dup_age;
+		while (($key, $val) = each %wwvdup) {
+			delete $wwvdup{$key} if $val < $cutoff;
+		}
+		$cutoff = $main::systime - $pc12_dup_age;
+		while (($key, $val) = each %anndup) {
+			delete $anndup{$key} if $val < $cutoff;
+		}
+		$last_hour = $main::systime;
+	}
 }
 
 #
 # finish up a pc context
 #
-sub pc_clean
+sub finish
+{
+	my $self = shift;
+	my $call = $self->call;
+	my $ref = DXCluster->get_exact($call);
+	
+	# unbusy and stop and outgoing mail
+	my $mref = DXMsg::get_busy($call);
+	$mref->stop_msg($self) if $mref;
+	
+	# broadcast to all other nodes that all the nodes connected to via me are gone
+	my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
+	my $node;
+	
+	foreach $node (@gonenodes) {
+		next if $node->call eq $call;
+		broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate}; 
+		$node->del();
+	}
+
+	# remove outstanding pings
+	delete $pings{$call};
+	
+	# now broadcast to all other ak1a nodes that I have gone
+	broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
+	
+	Log('DXProt', $call . " Disconnected");
+	$ref->del() if $ref;
+}
+
+#
+# some active measures
+#
+sub send_dx_spot
+{
+	my $self = shift;
+	my $line = shift;
+	my @dxchan = DXChannel->get_all();
+	my $dxchan;
+	
+	# send it if it isn't the except list and isn't isolated and still has a hop count
+	# taking into account filtering and so on
+	foreach $dxchan (@dxchan) {
+		my $routeit;
+		my ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} ) if $dxchan->{spotfilter};
+		if ($dxchan->is_ak1a) {
+			next if $dxchan == $self;
+			if ($hops) {
+				$routeit = $line;
+				$routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+			} else {
+				$routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
+				next unless $routeit;
+			}
+			if ($filter) {
+				$dxchan->send($routeit) if $routeit;
+			} else {
+				$dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
+				
+			}
+		} elsif ($dxchan->is_user && $dxchan->{dx}) {
+			my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
+			$buf .= "\a\a" if $dxchan->{beep};
+			if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+				$dxchan->send($buf) if !$hops || ($hops && $filter);
+			} else {
+				$dxchan->delay($buf) if !$hops || ($hops && $filter);
+			}
+		}					
+	}
+}
+
+sub send_wwv_spot
+{
+	my $self = shift;
+	my $line = shift;
+	my @dxchan = DXChannel->get_all();
+	my $dxchan;
+	
+	# send it if it isn't the except list and isn't isolated and still has a hop count
+	# taking into account filtering and so on
+	foreach $dxchan (@dxchan) {
+		my $routeit;
+		my ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} ) if $dxchan->{wwvfilter};
+		if ($dxchan->is_ak1a) {
+			next if $dxchan == $self;
+			if ($hops) {
+				$routeit = $line;
+				$routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+			} else {
+				$routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
+				next unless $routeit;
+			}
+			if ($filter) {
+				$dxchan->send($routeit) if $routeit;
+			} else {
+				$dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
+				
+			}
+		} elsif ($dxchan->is_user && $dxchan->{wwv}) {
+			my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
+			$buf .= "\a\a" if $dxchan->{beep};
+			if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+				$dxchan->send($buf) if !$hops || ($hops && $filter);
+			} else {
+				$dxchan->delay($buf) if !$hops || ($hops && $filter);
+			}
+		}					
+	}
+}
+
+sub send_local_config
+{
+	my $self = shift;
+	my $n;
+	my @nodes;
+	my @localnodes;
+	my @remotenodes;
+		
+	# send our nodes
+	if ($self->{isolate}) {
+		@localnodes = (DXCluster->get_exact($main::mycall));
+	} else {
+		# create a list of all the nodes that are not connected to this connection
+		# and are not themselves isolated, this to make sure that isolated nodes
+        # don't appear outside of this node
+		@nodes = DXNode::get_all();
+		@nodes = grep { $_->{call} ne $main::mycall } @nodes;
+		@nodes = grep { $_->dxchan != $self } @nodes if @nodes;
+		@nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
+		@localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
+		unshift @localnodes, DXCluster->get_exact($main::mycall);
+		@remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
+	}
+
+	my @s = $me->pc19(@localnodes, @remotenodes);
+	for (@s) {
+		my $routeit = adjust_hops($self, $_);
+		$self->send($routeit) if $routeit;
+	}
+	
+	# get all the users connected on the above nodes and send them out
+	foreach $n (@localnodes, @remotenodes) {
+		my @users = values %{$n->list};
+		my @s = pc16($n, @users);
+		for (@s) {
+			my $routeit = adjust_hops($self, $_);
+			$self->send($routeit) if $routeit;
+		}
+	}
+}
+
+#
+# route a message down an appropriate interface for a callsign
+#
+# is called route(to, pcline);
+#
+sub route
+{
+	my ($call, $line) = @_;
+	my $cl = DXCluster->get_exact($call);
+	if ($cl) {
+		my $hops;
+		my $dxchan = $cl->{dxchan};
+		if ($dxchan) {
+			my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
+			if ($routeit) {
+				$dxchan->send($routeit) if $dxchan;
+			}
+		}
+	}
+}
+
+# broadcast a message to all clusters taking into account isolation
+# [except those mentioned after buffer]
+sub broadcast_ak1a
 {
+	my $s = shift;				# the line to be rebroadcast
+	my @except = @_;			# to all channels EXCEPT these (dxchannel refs)
+	my @dxchan = get_all_ak1a();
+	my $dxchan;
+	
+	# send it if it isn't the except list and isn't isolated and still has a hop count
+	foreach $dxchan (@dxchan) {
+		next if grep $dxchan == $_, @except;
+		my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
+		$dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
+	}
+}
 
+# broadcast a message to all clusters ignoring isolation
+# [except those mentioned after buffer]
+sub broadcast_all_ak1a
+{
+	my $s = shift;				# the line to be rebroadcast
+	my @except = @_;			# to all channels EXCEPT these (dxchannel refs)
+	my @dxchan = get_all_ak1a();
+	my $dxchan;
+	
+	# send it if it isn't the except list and isn't isolated and still has a hop count
+	foreach $dxchan (@dxchan) {
+		next if grep $dxchan == $_, @except;
+		my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
+		$dxchan->send($routeit);
+	}
 }
 
+# broadcast to all users
+# storing the spot or whatever until it is in a state to receive it
+sub broadcast_users
+{
+	my $s = shift;				# the line to be rebroadcast
+	my $sort = shift;           # the type of transmission
+	my $fref = shift;           # a reference to an object to filter on
+	my @except = @_;			# to all channels EXCEPT these (dxchannel refs)
+	my @dxchan = get_all_users();
+	my $dxchan;
+	my @out;
+	
+	foreach $dxchan (@dxchan) {
+		next if grep $dxchan == $_, @except;
+		push @out, $dxchan;
+	}
+	broadcast_list($s, $sort, $fref, @out);
+}
+
+# broadcast to a list of users
+sub broadcast_list
+{
+	my $s = shift;
+	my $sort = shift;
+	my $fref = shift;
+	my $dxchan;
+	
+	foreach $dxchan (@_) {
+		my $filter = 1;
+		
+		if ($sort eq 'dx') {
+		    next unless $dxchan->{dx};
+			($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
+			next unless $filter;
+		}
+		next if $sort eq 'ann' && !$dxchan->{ann};
+		next if $sort eq 'wwv' && !$dxchan->{wwv};
+		next if $sort eq 'wx' && !$dxchan->{wx};
+
+		$s =~ s/\a//og unless $dxchan->{beep};
+
+		if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+			$dxchan->send($s);	
+		} else {
+			$dxchan->delay($s);
+		}
+	}
+}
+
+#
+# gimme all the ak1a nodes
+#
+sub get_all_ak1a
+{
+	my @list = DXChannel->get_all();
+	my $ref;
+	my @out;
+	foreach $ref (@list) {
+		push @out, $ref if $ref->is_ak1a;
+	}
+	return @out;
+}
+
+# return a list of all users
+sub get_all_users
+{
+	my @list = DXChannel->get_all();
+	my $ref;
+	my @out;
+	foreach $ref (@list) {
+		push @out, $ref if $ref->is_user;
+	}
+	return @out;
+}
+
+# return a list of all user callsigns
+sub get_all_user_calls
+{
+	my @list = DXChannel->get_all();
+	my $ref;
+	my @out;
+	foreach $ref (@list) {
+		push @out, $ref->call if $ref->is_user;
+	}
+	return @out;
+}
+
+#
+# obtain the hops from the list for this callsign and pc no 
+#
+
+sub get_hops
+{
+	my $pcno = shift;
+	my $hops = $DXProt::hopcount{$pcno};
+	$hops = $DXProt::def_hopcount if !$hops;
+	return "H$hops";       
+}
+
+# 
+# adjust the hop count on a per node basis using the user loadable 
+# hop table if available or else decrement an existing one
+#
+
+sub adjust_hops
+{
+	my $self = shift;
+	my $s = shift;
+	my $call = $self->{call};
+	my $hops;
+	
+	if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
+		my ($pcno) = $s =~ /^PC(\d\d)/o;
+		confess "$call called adjust_hops with '$s'" unless $pcno;
+		my $ref = $nodehops{$call} if %nodehops;
+		if ($ref) {
+			my $newhops = $ref->{$pcno};
+			return "" if defined $newhops && $newhops == 0;
+			$newhops = $ref->{default} unless $newhops;
+			return "" if defined $newhops && $newhops == 0;
+			$newhops = $hops if !$newhops;
+			$s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
+		} else {
+			# simply decrement it
+			$hops--;
+			return "" if !$hops;
+			$s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
+		}
+	}
+	return $s;
+}
+
+# 
+# load hop tables
+#
+sub load_hops
+{
+	my $self = shift;
+	return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
+	do "$main::data/hop_table.pl";
+	return $@ if $@;
+	return 0;
+}
+
+# remove leading and trailing spaces from an input string
+sub unpad
+{
+	my $s = shift;
+	$s =~ s/^\s+|\s+$//;
+	return $s;
+}
+
+# add a ping request to the ping queues
+sub addping
+{
+	my ($from, $to) = @_;
+	my $ref = $pings{$to};
+	$ref = $pings{$to} = [] if !$ref;
+	my $r = {};
+	$r->{call} = $from;
+	$r->{t} = $main::systime;
+	route($to, pc51($to, $main::mycall, 1));
+	push @$ref, $r;
+}
+
+# add a rcmd request to the rcmd queues
+sub addrcmd
+{
+	my ($from, $to, $cmd) = @_;
+	my $r = {};
+	$r->{call} = $from;
+	$r->{t} = $main::systime;
+	$r->{cmd} = $cmd;
+	route($to, pc34($main::mycall, $to, $cmd));
+	$rcmds{$to} = $r;
+}
 1;
 __END__