*** empty log message ***
authorminima <minima>
Wed, 22 Jan 2003 07:41:18 +0000 (07:41 +0000)
committerminima <minima>
Wed, 22 Jan 2003 07:41:18 +0000 (07:41 +0000)
perl/QXProt.pm
perl/Thingy.pm [new file with mode: 0644]
perl/Thingy/PCProt.pm [new file with mode: 0644]

index 41b34d6f2eacc03ca4a5d5b9f85c980b7bc62c64..3aabb5ed07e8c9d206d24024483cbc71dfc70a08 100644 (file)
@@ -72,28 +72,45 @@ sub sendinit
 
 sub normal
 {
-       if ($_[1] =~ /^PC\d\d\^/) {
-               DXProt::normal(@_);
-               return;
+       my $r;
+       
+       if  (ref $_[1] && $_->isa('Thingy')) {
+               $_[1]->handle($_[0]);
+       } else {
+               if ($_[1] =~ /^PC\d\d\^/) {
+                       DXProt::normal(@_);
+               } elsif ($_[1] =~ /^QX\w\^/){
+
+                       my ($sort, $tonode, $fromnode, $msgid, $incs);
+                       return unless ($sort, $tonode, $fromnode, $msgid, $incs) = $_[1] =~ /^QX([A-Z])\^(\*|[-A-Z0-9]+)\^([-A-Z0-9]+)\^([0-9A-F]{1,4})\^.*\^([0-9A-F]{2})$/;
+                       
+                       $msgid = hex $msgid;
+                       my $noderef = Route::Node::get($fromnode);
+                       $noderef = Route::Node::new($fromnode) unless $noderef;
+                       
+                       my $il = length $incs; 
+                       my $cs = sprintf("%02X", unpack("%32C*", substr($_[1], 0, length($_[1]) - ($il+1))) & 255);
+                       if ($incs ne $cs) {
+                               dbg("QXPROT: Checksum fail in: $incs ne calc: $cs" ) if isdbg('chanerr');
+                               return;
+                       }
+                       
+                       unless ($noderef->newid($msgid)) {
+                               dbg("QXPROT: Dupe, dropped") if isdbg('chanerr');
+                               return;
+                       }
+                       
+                       no strict 'subs';
+                       my $sub = "Thingy::QX$sort";
+                       my $thing = $sub->new(sort => $sort, tonode => $tonode, fromnode => $fromnode, id=> $msgid, line => $line);
+                       $r = $thing->handle($_[0]); 
+               } else {
+                       dbg("QXProt: unrecognised protocol, dropped") if isdbg('chanerr') 
+               }
        }
-       my ($sort, $tonode, $fromnode, $msgid, $incs);
-       return unless ($sort, $tonode, $fromnode, $msgid, $incs) = $_[1] =~ /^QX([A-Z])\^(\*|[-A-Z0-9]+)\^([-A-Z0-9]+)\^([0-9A-F]{1,4})\^.*\^([0-9A-F]{2})$/;
-
-       $msgid = hex $msgid;
-       my $noderef = Route::Node::get($fromnode);
-       $noderef = Route::Node::new($fromnode) unless $noderef;
-
-       my $il = length $incs; 
-       my $cs = sprintf("%02X", unpack("%32C*", substr($_[1], 0, length($_[1]) - ($il+1))) & 255);
-       if ($incs ne $cs) {
-               dbg("QXPROT: Checksum fail in: $incs ne calc: $cs" ) if isdbg('chanerr');
-               return;
+       unless (ref $r) {
+               dbg($r) if isdbg("chanerr");
        }
-
-       return unless $noderef->newid($msgid);
-
-       $_[0]->handle($sort, $tonode, $fromnode, $msgid, $_[1]);
-       return;
 }
 
 sub handle
@@ -224,7 +241,7 @@ sub handleX
 
        my ($pcno) = $line =~ /^PC(\d\d)/;
        if ($pcno) {
-               $line =~ s/^[\x\x]$//;
+               $line =~ s/\^[[0-9A-F]+]$//;
                DXProt::normal($self, $line);
        }
 }
diff --git a/perl/Thingy.pm b/perl/Thingy.pm
new file mode 100644 (file)
index 0000000..ce586a9
--- /dev/null
@@ -0,0 +1,59 @@
+#
+# This module is the factory method for dealing with routable entities
+# It will route transforming them on the way as required.
+#
+# Copyright (c) 2001 Dirk Koopman G1TLH
+#
+# $Id$
+# 
+
+package Thingy;
+
+use strict;
+
+use DXDebug;
+
+use vars qw($VERSION $BRANCH);
+$VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
+$main::build += $VERSION;
+$main::branch += $BRANCH;
+
+use vars qw(%valid);
+
+%valid = (
+                 sort => '0,Sort',
+                 tonode => '0,To Node',
+                 fromnode => '0,From Node',
+                 id => '0,Msg Id',
+                 origin => '0,Origin Node',
+                 line => '0,Input Line',
+                );
+
+
+sub init
+{
+
+}
+
+sub new
+{
+       my $pkg = shift;
+       my $self = {@_};
+       return bless $self, $pkg;
+}
+
+sub AUTOLOAD
+{
+       my ($pkg, $name) = $AUTOLOAD =~ /^(.*)::(\w+)$/;
+       return if $name eq 'DESTROY';
+  
+       my $v = "${pkg}::valid";
+       confess "Non-existant field '$AUTOLOAD'" unless $$v{$name} || $valid{$name};
+
+       *$AUTOLOAD = sub {@_ > 1 ? $_[0]->{$name} = $_[1] : $_[0]->{$name}};
+       goto &$AUTOLOAD;
+}
+
+1;
+
diff --git a/perl/Thingy/PCProt.pm b/perl/Thingy/PCProt.pm
new file mode 100644 (file)
index 0000000..7482d99
--- /dev/null
@@ -0,0 +1,1265 @@
+#
+# This module is the PC Protocol Thingy Handler 
+# It will route transforming them on the way as required.
+#
+# Copyright (c) 2001 Dirk Koopman G1TLH
+#
+# $Id$
+# 
+
+use strict;
+
+use DXDebug;
+
+use vars qw($VERSION $BRANCH);
+$VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
+$BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
+$main::build += $VERSION;
+$main::branch += $BRANCH;
+
+
+package Thingy::PC10;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+       
+# incoming talk commands
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       # rsfp check
+       return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
+                       
+       # will we allow it at all?
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($_[3])) {
+                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       # is it for me or one of mine?
+       my ($from, $to, $via, $call, $dxchan);
+       $from = $_[1];
+       if ($_[5] gt ' ') {
+               $via = $_[2];
+               $to = $_[5];
+       } else {
+               $to = $_[2];
+       }
+
+       # if this is a 'nodx' node then ignore it
+       if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
+               dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+               return;
+       }
+
+       # if this is a 'bad spotter' user then ignore it
+       my $nossid = $from;
+       $nossid =~ s/-\d+$//;
+       if ($badspotter->in($nossid)) {
+               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               return;
+       }
+
+       # if we are converting announces to talk is it a dup?
+       if ($ann_to_talk) {
+               if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
+                       dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       # it is here and logged on
+       $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
+       $dxchan = DXChannel->get($to) unless $dxchan;
+       if ($dxchan && $dxchan->is_user) {
+               $_[3] =~ s/\%5E/^/g;
+               $dxchan->talk($from, $to, $via, $_[3]);
+               return;
+       }
+
+       # is it elsewhere, visible on the cluster via the to address?
+       # note: this discards the via unless the to address is on
+       # the via address
+       my ($ref, $vref);
+       if ($ref = Route::get($to)) {
+               $vref = Route::Node::get($via) if $via;
+               $vref = undef unless $vref && grep $to eq $_, $vref->users;
+               $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
+               return;
+       }
+
+       # not visible here, send a message of condolence
+       $vref = undef;
+       $ref = Route::get($from);
+       $vref = $ref = Route::Node::get($_[6]) unless $ref; 
+       if ($ref) {
+               $dxchan = $ref->dxchan;
+               $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
+       }
+}
+
+# DX Spot handling
+package Thingy::PC11;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       # route 'foreign' pc26s 
+       if ($pcno == 26) {
+               if ($_[7] ne $main::mycall) {
+                       $self->route($_[7], $line);
+                       return;
+               }
+       }
+                       
+       # rsfp check
+       #                       return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
+
+       # if this is a 'nodx' node then ignore it
+       if ($badnode->in($_[7])) {
+               dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+               return;
+       }
+                       
+       # if this is a 'bad spotter' user then ignore it
+       my $nossid = $_[6];
+       $nossid =~ s/-\d+$//;
+       if ($badspotter->in($nossid)) {
+               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               return;
+       }
+                       
+       # convert the date to a unix date
+       my $d = cltounix($_[3], $_[4]);
+       # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
+       if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
+               dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
+               return;
+       }
+
+       # is it 'baddx'
+       if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
+               dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
+               return;
+       }
+                       
+       # do some de-duping
+       $_[5] =~ s/^\s+//;                      # take any leading blanks off
+       $_[2] = unpad($_[2]);           # take off leading and trailing blanks from spotted callsign
+       if ($_[2] =~ /BUST\w*$/) {
+               dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
+               return;
+       }
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($_[5])) {
+                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+
+       my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $_[6], $_[7]);
+       # global spot filtering on INPUT
+       if ($self->{inspotsfilter}) {
+               my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
+               unless ($filter) {
+                       dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       # this goes after the input filtering, but before the add
+       # so that if it is input filtered, it isn't added to the dup
+       # list. This allows it to come in from a "legitimate" source
+       if (Spot::dup($_[1], $_[2], $d, $_[5], $_[6])) {
+               dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
+               return;
+       }
+
+       # add it 
+       Spot::add(@spot);
+
+       #
+       # @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
+       #
+                       
+       # fix up qra locators of known users 
+       my $user = DXUser->get_current($spot[4]);
+       if ($user) {
+               my $qra = $user->qra;
+               unless ($qra && is_qra($qra)) {
+                       my $lat = $user->lat;
+                       my $long = $user->long;
+                       if (defined $lat && defined $long) {
+                               $user->qra(DXBearing::lltoqra($lat, $long)); 
+                               $user->put;
+                       }
+               }
+
+               # send a remote command to a distant cluster if it is visible and there is no
+               # qra locator and we havn't done it for a month.
+
+               unless ($user->qra) {
+                       my $node;
+                       my $to = $user->homenode;
+                       my $last = $user->lastoper || 0;
+                       if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
+                               my $cmd = "forward/opernam $spot[4]";
+                               # send the rcmd but we aren't interested in the replies...
+                               my $dxchan = $node->dxchan;
+                               if ($dxchan && $dxchan->is_clx) {
+                                       route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+                               } else {
+                                       route(undef, $to, pc34($main::mycall, $to, $cmd));
+                               }
+                               if ($to ne $_[7]) {
+                                       $to = $_[7];
+                                       $node = Route::Node::get($to);
+                                       if ($node) {
+                                               $dxchan = $node->dxchan;
+                                               if ($dxchan && $dxchan->is_clx) {
+                                                       route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+                                               } else {
+                                                       route(undef, $to, pc34($main::mycall, $to, $cmd));
+                                               }
+                                       }
+                               }
+                               $user->lastoper($main::systime);
+                               $user->put;
+                       }
+               }
+       }
+                               
+       # local processing 
+       my $r;
+       eval {
+               $r = Local::spot($self, @spot);
+       };
+       #                       dbg("Local::spot1 error $@") if isdbg('local') 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;
+}
+               
+# announces
+package Thingy::PC12;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       #                       return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
+
+       # announce duplicate checking
+       $_[3] =~ s/^\s+//;                      # remove leading blanks
+
+       if ($censorpc) {
+               my @bad;
+               if (@bad = BadWords::check($_[3])) {
+                       dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       # if this is a 'nodx' node then ignore it
+       if ($badnode->in($_[5])) {
+               dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+               return;
+       }
+
+       # if this is a 'bad spotter' user then ignore it
+       my $nossid = $_[1];
+       $nossid =~ s/-\d+$//;
+       if ($badspotter->in($nossid)) {
+               dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+               return;
+       }
+
+       if ($_[2] eq '*' || $_[2] eq $main::mycall) {
+
+
+               # here's a bit of fun, convert incoming ann with a callsign in the first word
+               # or one saying 'to <call>' to a talk if we can route to the recipient
+               if ($ann_to_talk) {
+                       my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
+                       if ($call) {
+                               my $ref = Route::get($call);
+                               if ($ref) {
+                                       my $dxchan = $ref->dxchan;
+                                       $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
+                                       return;
+                               }
+                       }
+               }
+       
+               # send it
+               $self->send_announce($line, @_[1..6]);
+       } else {
+               $self->route($_[2], $line);
+       }
+}
+               
+# incoming user                
+package Thingy::PC16;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+
+       if (eph_dup($line)) {
+               dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
+               return;
+       }
+
+       # general checks
+       my $dxchan;
+       my $ncall = $_[1];
+       my $newline = "PC16^";
+                       
+       # do I want users from this channel?
+       unless ($self->user->wantpc16) {
+               dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
+               return;
+       }
+       # is it me?
+       if ($ncall eq $main::mycall) {
+               dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+               return;
+       }
+       my $parent = Route::Node::get($ncall); 
+
+       # if there is a parent, proceed, otherwise if there is a latent PC19 in the PC19list, 
+       # fix it up in the routing tables and issue it forth before the PC16
+       unless ($parent) {
+               my $nl = $pc19list{$ncall};
+
+               if ($nl && @_ > 3) { # 3 because of the hop count!
+
+                       # this is a new (remembered) node, now attach it to me if it isn't in filtered
+                       # and we haven't disallowed it
+                       my $user = DXUser->get_current($ncall);
+                       if (!$user) {
+                               $user = DXUser->new($ncall);
+                               $user->sort('A');
+                               $user->priv(1); # I have relented and defaulted nodes
+                               $user->lockout(1);
+                               $user->homenode($ncall);
+                               $user->node($ncall);
+                       }
+
+                       my $wantpc19 = $user->wantroutepc19;
+                       if ($wantpc19 || !defined $wantpc19) {
+                               my $new = Route->new($ncall); # throw away
+                               if ($self->in_filter_route($new)) {
+                                       my @nrout;
+                                       for (@$nl) {
+                                               $parent = Route::Node::get($_->[0]);
+                                               $dxchan = $parent->dxchan if $parent;
+                                               if ($dxchan && $dxchan ne $self) {
+                                                       dbg("PCPROT: PC19 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+                                                       $parent = undef;
+                                               }
+                                               if ($parent) {
+                                                       my $r = $parent->add($ncall, $_->[1], $_->[2]);
+                                                       push @nrout, $r unless @nrout;
+                                               }
+                                       }
+                                       $user->wantroutepc19(1) unless defined $wantpc19; # for now we work on the basis that pc16 = real route 
+                                       $user->lastin($main::systime) unless DXChannel->get($ncall);
+                                       $user->put;
+                                               
+                                       # route the pc19 - this will cause 'stuttering PC19s' for a while
+                                       $self->route_pc19(@nrout) if @nrout ;
+                                       $parent = Route::Node::get($ncall);
+                                       unless ($parent) {
+                                               dbg("PCPROT: lost $ncall after sending PC19 for it?");
+                                               return;
+                                       }
+                               } else {
+                                       return;
+                               }
+                               delete $pc19list{$ncall};
+                       }
+               } else {
+                       dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
+                       return;
+               }
+       } else {
+                               
+               $dxchan = $parent->dxchan;
+               if ($dxchan && $dxchan ne $self) {
+                       dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+                       return;
+               }
+
+               # input filter if required
+               return unless $self->in_filter_route($parent);
+       }
+
+       my $i;
+       my @rout;
+       for ($i = 2; $i < $#_; $i++) {
+               my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
+               next unless $call && $conf && defined $here && is_callsign($call);
+               next if $call eq $main::mycall;
+
+               eph_del_regex("^PC17\\^$call\\^$ncall");
+                               
+               $conf = $conf eq '*';
+
+               # reject this if we think it is a node already
+               my $r = Route::Node::get($call);
+               my $u = DXUser->get_current($call) unless $r;
+               if ($r || ($u && $u->is_node)) {
+                       dbg("PCPROT: $call is a node") if isdbg('chanerr');
+                       next;
+               }
+                               
+               $r = Route::User::get($call);
+               my $flags = Route::here($here)|Route::conf($conf);
+                               
+               if ($r) {
+                       my $au = $r->addparent($parent);                                        
+                       if ($r->flags != $flags) {
+                               $r->flags($flags);
+                               $au = $r;
+                       }
+                       push @rout, $r if $au;
+               } else {
+                       push @rout, $parent->add_user($call, $flags);
+               }
+               
+                               
+               # 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;
+               $user->homenode($parent->call) if !$user->homenode;
+               $user->node($parent->call);
+               $user->lastin($main::systime) unless DXChannel->get($call);
+               $user->put;
+       }
+                       
+       $self->route_pc16($parent, @rout) if @rout;
+}
+               
+# remove a user
+package Thingy::PC17;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $ncall = $_[2];
+       my $ucall = $_[1];
+
+       eph_del_regex("^PC16\\^$ncall.*$ucall");
+                       
+       # do I want users from this channel?
+       unless ($self->user->wantpc16) {
+               dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
+               return;
+       }
+       if ($ncall eq $main::mycall) {
+               dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+               return;
+       }
+
+       my $uref = Route::User::get($ucall);
+       unless ($uref) {
+               dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
+               return;
+       }
+       my $parent = Route::Node::get($ncall);
+       unless ($parent) {
+               dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
+               return;
+       }                       
+
+       $dxchan = $parent->dxchan;
+       if ($dxchan && $dxchan ne $self) {
+               dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+               return;
+       }
+
+       # input filter if required
+       return unless $self->in_filter_route($parent);
+                       
+       $parent->del_user($uref);
+
+       if (eph_dup($line)) {
+               dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
+               return;
+       }
+
+       $self->route_pc17($parent, $uref);
+}
+               
+# link request
+package Thingy::PC18;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       $self->state('init');   
+
+       # record the type and version offered
+       if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
+               $self->version(53 + $1);
+               $self->user->version(53 + $1);
+               $self->build(0 + $2);
+               $self->user->build(0 + $2);
+               unless ($self->is_spider) {
+                       $self->user->sort('S');
+                       $self->user->put;
+                       $self->sort('S');
+               }
+       } else {
+               $self->version(50.0);
+               $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
+               $self->user->version($self->version);
+       }
+
+       # first clear out any nodes on this dxchannel
+       my $parent = Route::Node::get($self->{call});
+       my @rout = $parent->del_nodes;
+       $self->route_pc21(@rout, $parent) if @rout;
+       $self->send_local_config();
+       $self->send(pc20());
+}
+               
+# incoming cluster list
+package Thingy::PC19;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       my $i;
+       my $newline = "PC19^";
+
+       if (eph_dup($line)) {
+               dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
+               return;
+       }
+
+       # new routing list
+       my @rout;
+       my $parent = Route::Node::get($self->{call});
+       unless ($parent) {
+               dbg("DXPROT: my parent $self->{call} has disappeared");
+               $self->disconnect;
+               return;
+       }
+
+       # parse the PC19
+       for ($i = 1; $i < $#_-1; $i += 4) {
+               my $here = $_[$i];
+               my $call = uc $_[$i+1];
+               my $conf = $_[$i+2];
+               my $ver = $_[$i+3];
+               next unless defined $here && defined $conf && is_callsign($call);
+
+               eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
+                               
+               # check for sane parameters
+               #                               $ver = 5000 if $ver eq '0000';
+               next if $ver < 5000;    # only works with version 5 software
+               next if length $call < 3; # min 3 letter callsigns
+               next if $call eq $main::mycall;
+
+               # check that this PC19 isn't trying to alter the wrong dxchan
+               my $dxchan = DXChannel->get($call);
+               if ($dxchan && $dxchan != $self) {
+                       dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
+                       next;
+               }
+
+               # 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
+                       $user->lockout(1);
+                       $user->homenode($call);
+                       $user->node($call);
+               }
+
+               my $r = Route::Node::get($call);
+               my $flags = Route::here($here)|Route::conf($conf);
+
+               # modify the routing table if it is in it, otherwise store it in the pc19list for now
+               if ($r) {
+                       my $ar;
+                       if ($call ne $parent->call) {
+                               if ($self->in_filter_route($r)) {
+                                       $ar = $parent->add($call, $ver, $flags);
+                                       push @rout, $ar if $ar;
+                               } else {
+                                       next;
+                               }
+                       }
+                       if ($r->version ne $ver || $r->flags != $flags) {
+                               $r->version($ver);
+                               $r->flags($flags);
+                               push @rout, $r unless $ar;
+                       }
+               } else {
+
+                       # if he is directly connected or allowed then add him, otherwise store him up for later
+                       if ($call eq $self->{call} || $user->wantroutepc19) {
+                               my $new = Route->new($call); # throw away
+                               if ($self->in_filter_route($new)) {
+                                       my $ar = $parent->add($call, $ver, $flags);
+                                       $user->wantroutepc19(1) unless defined $user->wantroutepc19;
+                                       push @rout, $ar if $ar;
+                               } else {
+                                       next;
+                               }
+                       } else {
+                               $pc19list{$call} = [] unless exists $pc19list{$call};
+                               my $nl = $pc19list{$call};
+                               push @{$pc19list{$call}}, [$self->{call}, $ver, $flags] unless grep $_->[0] eq $self->{call}, @$nl;
+                       }
+               }
+
+               # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
+               my $mref = DXMsg::get_busy($call);
+               $mref->stop_msg($call) if $mref;
+                               
+               $user->lastin($main::systime) unless DXChannel->get($call);
+               $user->put;
+       }
+
+
+       $self->route_pc19(@rout) if @rout;
+}
+               
+# send local configuration
+package Thingy::PC20;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       $self->send_local_config();
+       $self->send(pc22());
+       $self->state('normal');
+       $self->{lastping} = 0;
+}
+               
+# delete a cluster from the list
+package Thingy::PC21;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $call = uc $_[1];
+
+       eph_del_regex("^PC1[679].*$call");
+                       
+       # if I get a PC21 from the same callsign as self then treat it
+       # as a PC39: I have gone away
+       if ($call eq $self->call) {
+               $self->disconnect(1);
+               return;
+       }
+
+       # check to see if we are in the pc19list, if we are then don't bother with any of
+       # this routing table manipulation, just remove it from the list and dump it
+       my @rout;
+       if (my $nl = $pc19list{$call}) {
+               $pc19list{$call} = [ grep {$_->[0] ne $self->{call}} @$nl ];
+               delete $pc19list{$call} unless @{$pc19list{$call}};
+       } else {
+                               
+               my $parent = Route::Node::get($self->{call});
+               unless ($parent) {
+                       dbg("DXPROT: my parent $self->{call} has disappeared");
+                       $self->disconnect;
+                       return;
+               }
+               if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
+                       my $node = Route::Node::get($call);
+                       if ($node) {
+                                               
+                               my $dxchan = DXChannel->get($call);
+                               if ($dxchan && $dxchan != $self) {
+                                       dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
+                                       return;
+                               }
+                                               
+                               # input filter it
+                               return unless $self->in_filter_route($node);
+                                               
+                               # routing objects
+                               push @rout, $node->del($parent);
+                       }
+               } else {
+                       dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
+                       return;
+               }
+       }
+
+       $self->route_pc21(@rout) if @rout;
+}
+               
+
+package Thingy::PC22;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       $self->state('normal');
+       $self->{lastping} = 0;
+}
+                               
+# WWV info
+package Thingy::PC23;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+                       
+       # route 'foreign' pc27s 
+       if ($pcno == 27) {
+               if ($_[8] ne $main::mycall) {
+                       $self->route($_[8], $line);
+                       return;
+               }
+       }
+
+       return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7]);
+
+       # do some de-duping
+       my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
+       my $sfi = unpad($_[3]);
+       my $k = unpad($_[4]);
+       my $i = unpad($_[5]);
+       my ($r) = $_[6] =~ /R=(\d+)/;
+       $r = 0 unless $r;
+       if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
+               dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
+               return;
+       }
+       if (Geomag::dup($d,$sfi,$k,$i,$_[6])) {
+               dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
+               return;
+       }
+       $_[7] =~ s/-\d+$//o;            # remove spotter's ssid
+               
+       my $wwv = Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
+
+       my $rep;
+       eval {
+               $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
+       };
+       #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
+       return if $rep;
+
+       # DON'T be silly and send on PC27s!
+       return if $pcno == 27;
+
+       # broadcast to the eager world
+       send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
+}
+               
+# set here status
+package Thingy::PC24;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $call = uc $_[1];
+       my ($nref, $uref);
+       $nref = Route::Node::get($call);
+       $uref = Route::User::get($call);
+       return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
+                       
+       if (eph_dup($line)) {
+               dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
+               return;
+       }
+       
+       $nref->here($_[2]) if $nref;
+       $uref->here($_[2]) if $uref;
+       my $ref = $nref || $uref;
+       return unless $self->in_filter_route($ref);
+
+       $self->route_pc24($ref, $_[3]);
+}
+               
+# merge request
+package Thingy::PC25;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       if ($_[1] ne $main::mycall) {
+               $self->route($_[1], $line);
+               return;
+       }
+       if ($_[2] eq $main::mycall) {
+               dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
+               return;
+       }
+
+       Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
+                       
+       # spots
+       if ($_[3] > 0) {
+               my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
+               my $in;
+               foreach $in (@in) {
+                       $self->send_frame($main::me, pc26(@{$in}[0..4], $_[2]));
+               }
+       }
+
+       # wwv
+       if ($_[4] > 0) {
+               my @in = reverse Geomag::search(0, $_[4], time, 1);
+               my $in;
+               foreach $in (@in) {
+                       $self->send_frame($main::me, pc27(@{$in}[0..5], $_[2]));
+               }
+       }
+}
+
+sub handle_26 {goto &handle_11}
+sub handle_27 {goto &handle_23}
+
+# mail/file handling
+package Thingy::PC28;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       if ($_[1] eq $main::mycall) {
+               no strict 'refs';
+               my $sub = "DXMsg::handle_$pcno";
+               &$sub($self, @_);
+       } else {
+               $self->route($_[1], $line) unless $self->is_clx;
+       }
+}
+
+sub handle_29 {goto &handle_28}
+sub handle_30 {goto &handle_28}
+sub handle_31 {goto &handle_28}
+sub handle_32 {goto &handle_28}
+sub handle_33 {goto &handle_28}
+               
+package Thingy::PC34;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       if (eph_dup($line, $eph_pc34_restime)) {
+               dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
+       } else {
+               $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
+       }
+}
+               
+# remote command replies
+package Thingy::PC35;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
+       $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
+}
+               
+sub handle_36 {goto &handle_34}
+
+# database stuff
+package Thingy::PC37;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       DXDb::process($self, $line);
+}
+
+# node connected list from neighbour
+package Thingy::PC38;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+}
+               
+# incoming disconnect
+package Thingy::PC39;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       if ($_[1] eq $self->{call}) {
+               $self->disconnect(1);
+       } else {
+               dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
+       }
+}
+
+sub handle_40 {goto &handle_28}
+               
+# user info
+package Thingy::PC41;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $call = $_[1];
+
+       my $l = $line;
+       $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
+       if (eph_dup($l, $eph_info_restime)) {
+               dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
+               return;
+       }
+                       
+       # input filter if required
+       #                       my $ref = Route::get($call) || Route->new($call);
+       #                       return unless $self->in_filter_route($ref);
+
+       if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
+               dbg('PCPROT: invalid value') if isdbg('chanerr');
+               return;
+       }
+
+       # add this station to the user database, if required
+       my $user = DXUser->get_current($call);
+       $user = DXUser->new($call) unless $user;
+                       
+       if ($_[2] == 1) {
+               $user->name($_[3]);
+       } elsif ($_[2] == 2) {
+               $user->qth($_[3]);
+       } elsif ($_[2] == 3) {
+               if (is_latlong($_[3])) {
+                       my ($lat, $long) = DXBearing::stoll($_[3]);
+                       $user->lat($lat);
+                       $user->long($long);
+                       $user->qra(DXBearing::lltoqra($lat, $long));
+               } else {
+                       dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
+                       return;
+               }
+       } elsif ($_[2] == 4) {
+               $user->homenode($_[3]);
+       } elsif ($_[2] == 5) {
+               if (is_qra(uc $_[3])) {
+                       my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
+                       $user->lat($lat);
+                       $user->long($long);
+                       $user->qra(uc $_[3]);
+               } else {
+                       dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
+                       return;
+               }
+       }
+       $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
+       $user->put;
+
+       unless ($self->{isolate}) {
+               DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
+       }
+
+       #  perhaps this IS what we want after all
+       #                       $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
+}
+
+sub handle_42 {goto &handle_28}
+
+
+# database
+sub handle_44 {goto &handle_37}
+sub handle_45 {goto &handle_37}
+sub handle_46 {goto &handle_37}
+sub handle_47 {goto &handle_37}
+sub handle_48 {goto &handle_37}
+               
+# message and database
+package Thingy::PC49;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       if (eph_dup($line)) {
+               dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
+               return;
+       }
+       
+       if ($_[1] eq $main::mycall) {
+               DXMsg::handle_49($self, @_);
+       } else {
+               $self->route($_[1], $line) unless $self->is_clx;
+       }
+}
+
+# keep alive/user list
+package Thingy::PC50;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       my $call = $_[1];
+       my $node = Route::Node::get($call);
+       if ($node) {
+               return unless $node->call eq $self->{call};
+               $node->usercount($_[2]);
+
+               # input filter if required
+               return unless $self->in_filter_route($node);
+
+               $self->route_pc50($node, $_[2], $_[3]) unless eph_dup($line);
+       }
+}
+               
+# incoming ping requests/answers
+package Thingy::PC51;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $to = $_[1];
+       my $from = $_[2];
+       my $flag = $_[3];
+
+                       
+       # is it for us?
+       if ($to eq $main::mycall) {
+               if ($flag == 1) {
+                       $self->send_frame($main::me, pc51($from, $to, '0'));
+               } else {
+                       # it's a reply, look in the ping list for this one
+                       my $ref = $pings{$from};
+                       if ($ref) {
+                               my $tochan =  DXChannel->get($from);
+                               while (@$ref) {
+                                       my $r = shift @$ref;
+                                       my $dxchan = DXChannel->get($r->{call});
+                                       next unless $dxchan;
+                                       my $t = tv_interval($r->{t}, [ gettimeofday ]);
+                                       if ($dxchan->is_user) {
+                                               my $s = sprintf "%.2f", $t; 
+                                               my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
+                                               $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
+                                       } elsif ($dxchan->is_node) {
+                                               if ($tochan) {
+                                                       my $nopings = $tochan->user->nopings || 2;
+                                                       push @{$tochan->{pingtime}}, $t;
+                                                       shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
+
+                                                               # cope with a missed ping, this means you must set the pingint large enough
+                                                       if ($t > $tochan->{pingint}  && $t < 2 * $tochan->{pingint} ) {
+                                                               $t -= $tochan->{pingint};
+                                                       }
+
+                                                               # calc smoothed RTT a la TCP
+                                                       if (@{$tochan->{pingtime}} == 1) {
+                                                               $tochan->{pingave} = $t;
+                                                       } else {
+                                                               $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
+                                                       }
+                                                       $tochan->{nopings} = $nopings; # pump up the timer
+                                               }
+                                       } 
+                               }
+                       }
+               }
+       } else {
+               if (eph_dup($line)) {
+                       dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
+                       return;
+               }
+               # route down an appropriate thingy
+               $self->route($to, $line);
+       }
+}
+
+# dunno but route it
+package Thingy::PC75;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $call = $_[1];
+       if ($call ne $main::mycall) {
+               $self->route($call, $line);
+       }
+}
+
+# WCY broadcasts
+package Thingy::PC73;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       my $call = $_[1];
+                       
+       # do some de-duping
+       my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
+       if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
+               dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
+               return;
+       }
+       @_ = map { unpad($_) } @_;
+       if (WCY::dup($d)) {
+               dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
+               return;
+       }
+               
+       my $wcy = WCY::update($d, @_[2..12]);
+
+       my $rep;
+       eval {
+               $rep = Local::wcy($self, @_[1..12]);
+       };
+       # dbg("Local::wcy error $@") if isdbg('local') if $@;
+       return if $rep;
+
+       # broadcast to the eager world
+       send_wcy_spot($self, $line, $d, @_[2..12]);
+}
+
+# remote commands (incoming)
+package Thingy::PC84;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
+}
+
+# remote command replies
+package Thingy::PC85;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+       $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
+}
+        
+# 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!!!!
+#
+
+package Thingy::PCdefault;
+use vars qw(@ISA);
+@ISA = qw(Thingy);
+
+sub handle
+{
+       my $self = shift;
+       my $dxchan = shift;
+
+       if (eph_dup($line)) {
+               dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
+       } else {
+               unless ($self->{isolate}) {
+                       DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
+               }
+       }
+}
+
+1;