3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
40 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
41 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
42 $pingint $obscount %pc19list $chatdupeage $chatimportfn
43 $investigation_int $pc19_version $myprot_version
44 %nodehops $baddx $badspotter $badnode $censorpc
45 $allowzero $decode_dk0wcy $send_opernam @checklist
46 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
47 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
48 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
52 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
53 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
54 $pc92_slug_changes = 60; # slug any changes going outward for this long
55 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
56 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
57 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
58 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
59 # this is actually the partition between "yesterday" and "today" but old.
61 $pc92filterdef = bless ([
62 # tag, sort, field, priv, special parser
71 # incoming talk commands
79 # this is to catch loops caused by bad software ...
80 if (eph_dup($line, $pc10_dupe_age)) {
84 # will we allow it at all?
87 if (@bad = BadWords::check($_[3])) {
88 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
93 # is it for me or one of mine?
94 my ($from, $to, $via, $call, $dxchan);
103 # if this is a 'nodx' node then ignore it
104 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
105 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
109 # if this is a 'bad spotter' user then ignore it
111 $nossid =~ s/-\d+$//;
112 if ($badspotter->in($nossid)) {
113 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
117 # if we are converting announces to talk is it a dup?
119 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
120 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
125 # remember a route to this node and also the node on which this user is
126 RouteDB::update($_[6], $self->{call});
127 # RouteDB::update($to, $_[6]);
129 # convert this to a PC93, coming from mycall with origin set and process it as such
130 $main::me->normal(pc93($to, $from, $via, $_[3], $_[6]));
141 # route 'foreign' pc26s
143 if ($_[7] ne $main::mycall) {
144 $self->route($_[7], $line);
149 # my ($hops) = $_[8] =~ /^H(\d+)/;
151 # is the spotted callsign blank? This should really be trapped earlier but it
152 # could break other protocol sentences. Also check for lower case characters.
153 if ($_[2] =~ /^\s*$/) {
154 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
157 if ($_[2] =~ /[a-z]/) {
158 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
163 # if this is a 'nodx' node then ignore it
164 if ($badnode->in($_[7])) {
165 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
169 # if this is a 'bad spotter' user then ignore it
171 $nossid =~ s/-\d+$//;
172 if ($badspotter->in($nossid)) {
173 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
177 # convert the date to a unix date
178 my $d = cltounix($_[3], $_[4]);
179 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
180 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
181 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
186 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
187 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
192 $_[5] =~ s/^\s+//; # take any leading blanks off
193 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
194 if ($_[2] =~ /BUST\w*$/) {
195 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
200 if (@bad = BadWords::check($_[5])) {
201 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
207 # RouteDB::update($_[7], $self->{call});
208 # RouteDB::update($_[6], $_[7]);
210 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]);
211 # global spot filtering on INPUT
212 if ($self->{inspotsfilter}) {
213 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
215 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
220 # this goes after the input filtering, but before the add
221 # so that if it is input filtered, it isn't added to the dup
222 # list. This allows it to come in from a "legitimate" source
223 if (Spot::dup(@spot[0..4,5])) {
224 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
232 # @spot at this point contains:-
233 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
234 # then spotted itu, spotted cq, spotters itu, spotters cq
235 # you should be able to route on any of these
238 # fix up qra locators of known users
239 my $user = DXUser::get_current($spot[4]);
241 my $qra = $user->qra;
242 unless ($qra && is_qra($qra)) {
243 my $lat = $user->lat;
244 my $long = $user->long;
245 if (defined $lat && defined $long) {
246 $user->qra(DXBearing::lltoqra($lat, $long));
251 # send a remote command to a distant cluster if it is visible and there is no
252 # qra locator and we havn't done it for a month.
254 unless ($user->qra) {
256 my $to = $user->homenode;
257 my $last = $user->lastoper || 0;
258 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
259 my $cmd = "forward/opernam $spot[4]";
260 # send the rcmd but we aren't interested in the replies...
261 my $dxchan = $node->dxchan;
262 if ($dxchan && $dxchan->is_clx) {
263 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
265 route(undef, $to, pc34($main::mycall, $to, $cmd));
269 $node = Route::Node::get($to);
271 $dxchan = $node->dxchan;
272 if ($dxchan && $dxchan->is_clx) {
273 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
275 route(undef, $to, pc34($main::mycall, $to, $cmd));
279 $user->lastoper($main::systime);
286 if (defined &Local::spot) {
289 $r = Local::spot($self, @spot);
294 # DON'T be silly and send on PC26s!
295 return if $pcno == 26;
297 # send out the filtered spots
298 send_dx_spot($self, $line, @spot) if @spot;
309 # announce duplicate checking
310 $_[3] =~ s/^\s+//; # remove leading blanks
314 if (@bad = BadWords::check($_[3])) {
315 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
320 # if this is a 'nodx' node then ignore it
321 if ($badnode->in($_[5])) {
322 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
326 # if this is a 'bad spotter' user then ignore it
328 $nossid =~ s/-\d+$//;
329 if ($badspotter->in($nossid)) {
330 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
337 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
338 $self->send_chat(0, $line, @_[1..6]);
339 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
342 # RouteDB::update($_[5], $self->{call});
343 # RouteDB::update($_[1], $_[5]);
345 # ignore something that looks like a chat line coming in with sysop
346 # flag - this is a kludge...
347 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
348 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
352 # here's a bit of fun, convert incoming ann with a callsign in the first word
353 # or one saying 'to <call>' to a talk if we can route to the recipient
355 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
357 my $ref = Route::get($call);
359 $dxchan = $ref->dxchan;
360 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
367 $self->send_announce(0, $line, @_[1..6]);
369 $self->route($_[2], $line);
373 if (defined &Local::ann) {
376 $r = Local::ann($self, $line, @_[1..6]);
389 if (eph_dup($line, $eph_pc15_restime)) {
392 unless ($self->{isolate}) {
393 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
409 my $newline = "PC16^";
411 # dos I want users from this channel?
412 unless ($self->user->wantpc16) {
413 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
418 if ($ncall eq $main::mycall) {
419 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
424 $h = 1 if DXChannel::get($ncall);
425 RouteDB::update($ncall, $self->{call}, $h);
426 if ($h && $self->{call} ne $ncall) {
427 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
431 if (eph_dup($line)) {
435 # isolate now means only accept stuff from this call only
436 if ($self->{isolate} && $ncall ne $self->{call}) {
437 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
441 my $parent = Route::Node::get($ncall);
444 $dxchan = $parent->dxchan;
445 if ($dxchan && $dxchan ne $self) {
446 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
450 # input filter if required
451 return unless $self->in_filter_route($parent);
453 $parent = Route::Node->new($ncall);
457 if ($parent->via_pc92) {
458 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
465 for ($i = 2; $i < $#_; $i++) {
466 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
467 next unless $call && $conf && defined $here && is_callsign($call);
468 next if $call eq $main::mycall;
470 eph_del_regex("^PC17\\^$call\\^$ncall");
472 $conf = $conf eq '*';
474 # reject this if we think it is a node already
475 my $r = Route::Node::get($call);
476 my $u = DXUser::get_current($call) unless $r;
477 if ($r || ($u && $u->is_node)) {
478 dbg("PCPROT: $call is a node") if isdbg('chanerr');
482 $r = Route::User::get($call);
483 my $flags = Route::here($here)|Route::conf($conf);
486 my $au = $r->addparent($parent);
487 if ($r->flags != $flags) {
491 push @rout, $r if $h && $au;
493 my @ans = $parent->add_user($call, $flags);
494 push @rout, @ans if $h && @ans;
497 # add this station to the user database, if required
498 my $user = DXUser::get_current($ncall);
499 $user = DXUser->new($call) unless $user;
500 $user->homenode($parent->call) if !$user->homenode;
501 $user->node($parent->call);
502 $user->lastin($main::systime) unless DXChannel::get($call);
505 # send info to all logged in thingies
506 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
507 $self->tell_buddies('loginb', $call, $ncall);
510 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
511 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
526 eph_del_regex("^PC16\\^$ncall.*$ucall");
528 # do I want users from this channel?
529 unless ($self->user->wantpc16) {
530 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
534 if ($ncall eq $main::mycall) {
535 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
539 # isolate now means only accept stuff from this call only
540 if ($self->{isolate} && $ncall ne $self->{call}) {
541 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
545 RouteDB::delete($ncall, $self->{call});
547 my $uref = Route::User::get($ucall);
549 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
552 my $parent = Route::Node::get($ncall);
554 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
558 $dxchan = DXChannel::get($ncall);
559 if ($dxchan && $dxchan ne $self) {
560 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
565 if ($parent->via_pc92) {
566 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
571 if (DXChannel::get($ucall)) {
572 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
576 # input filter if required and then remove user if present
577 # return unless $self->in_filter_route($parent);
578 $parent->del_user($uref);
580 # send info to all logged in thingies
581 my $user = DXUser::get_current($ncall);
582 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
583 $self->tell_buddies('logoutb', $ucall, $ncall);
585 if (eph_dup($line)) {
589 $self->route_pc17($origin, $line, $parent, $uref);
590 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
600 $self->state('init');
602 my $parent = Route::Node::get($self->{call});
604 # record the type and version offered
605 if (my ($version) = $_[1] =~ /DXSpider Version: (\d+\.\d+)/) {
606 $self->{version} = 53 + $version;
607 $self->user->version(53 + $version);
608 $parent->version(0 + $version);
609 my ($build) = $_[1] =~ /Build: (\d+(?:\.\d+)?)/;
610 $self->{build} = 0 + $build;
611 $self->user->build(0 + $build);
612 $parent->build(0 + $build);
613 dbg("DXSpider version $version build $build");
614 unless ($self->is_spider) {
615 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
616 $self->user->sort('S');
620 # $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml/;
622 dbg("Unknown software");
623 $self->version(50.0);
624 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
625 $self->user->version($self->version);
628 if ($_[1] =~ /\bpc9x/) {
629 if ($self->{isolate}) {
630 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
631 } elsif (!$self->user->wantpc9x) {
632 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
634 $self->{do_pc9x} = 1;
635 dbg("Do px9x set on $self->{call}");
639 # first clear out any nodes on this dxchannel
640 my @rout = $parent->del_nodes;
641 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
642 $self->send_local_config();
650 # add this station to the user database, if required (don't remove SSID from nodes)
651 my $user = DXUser::get_current($call);
653 $user = DXUser->new($call);
654 $user->priv(1); # I have relented and defaulted nodes
656 $user->homenode($call);
659 $user->sort('A') unless $user->is_node;
663 # incoming cluster list
672 my $newline = "PC19^";
675 my (@rout, @pc92out);
677 # first get the INTERFACE node
678 my $parent = Route::Node::get($self->{call});
680 dbg("PCPROT: my parent $self->{call} has disappeared");
689 # We are making a major change from now on. We are only going to accept
690 # PC19s from directly connected nodes. This means that we are probably
691 # going to throw away most of the data that we are being sent.
693 # The justification for this is that most of it is wrong or out of date
696 # From now on we are only going to believe PC92 data and locally connected
699 for ($i = 1; $i < $#_-1; $i += 4) {
701 my $call = uc $_[$i+1];
704 next unless defined $here && defined $conf && is_callsign($call);
706 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
708 # check for sane parameters
709 # $ver = 5000 if $ver eq '0000';
710 next unless $ver && $ver =~ /^\d+$/;
711 next if $ver < 5000; # only works with version 5 software
712 next if length $call < 3; # min 3 letter callsigns
713 next if $call eq $main::mycall;
715 # check that this PC19 isn't trying to alter the wrong dxchan
717 my $dxchan = DXChannel::get($call);
719 if ($dxchan == $self) {
722 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
727 # isolate now means only accept stuff from this call only
728 if ($self->{isolate} && $call ne $self->{call}) {
729 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
733 my $user = check_add_node($call);
735 # if (eph_dup($genline)) {
736 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
740 RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef);
743 if ($parent->via_pc92) {
744 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
749 my $r = Route::Node::get($call);
750 my $flags = Route::here($here)|Route::conf($conf);
752 # modify the routing table if it is in it, otherwise store it in the pc19list for now
755 if ($call ne $parent->call) {
756 if ($self->in_filter_route($r)) {
757 $ar = $parent->add($call, $ver, $flags);
758 # push @rout, $ar if $ar;
763 if ($r->version ne $ver || $r->flags != $flags) {
769 if ($call eq $self->{call} || $user->wantroutepc19) {
770 my $new = Route->new($call); # throw away
771 if ($self->in_filter_route($new)) {
772 my $ar = $parent->add($call, $ver, $flags);
773 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
774 push @rout, $ar if $ar;
775 push @pc92out, $r if $h;
782 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
783 my $mref = DXMsg::get_busy($call);
784 $mref->stop_msg($call) if $mref;
786 $user->lastin($main::systime) unless DXChannel::get($call);
790 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
791 # but remember there will only be one (pair) these because any extras will be
794 # $self->route_pc21($self->{call}, $line, @rout);
795 $self->route_pc19($self->{call}, $line, @rout);
797 if (@pc92out && !$pc92_slug_changes) {
798 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
802 # send local configuration
810 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
811 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
812 $self->{do_pc9x} = 0;
814 $self->send_local_config;
816 $self->state('normal');
817 $self->{lastping} = 0;
818 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
821 # delete a cluster from the list
823 # This should never occur for directly connected nodes.
833 eph_del_regex("^PC1[679].*$call");
835 # if I get a PC21 from the same callsign as self then ignore it
836 if ($call eq $self->{call}) {
837 dbg("PCPROT: self referencing PC21 from $self->{call}");
841 # for the above reason and also because of the check for PC21s coming
842 # in for self->call from outside being ignored further down
843 # we don't need any isolation code here, because we will never
844 # act on a PC21 with self->call in it.
846 RouteDB::delete($call, $self->{call});
848 my $parent = Route::Node::get($self->{call});
850 dbg("PCPROT: my parent $self->{call} has disappeared");
857 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
858 my $node = Route::Node::get($call);
861 if ($node->via_pc92) {
862 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
866 my $dxchan = DXChannel::get($call);
867 if ($dxchan && $dxchan != $self) {
868 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
873 return unless $self->in_filter_route($node);
875 # routing objects, force a PC21 if it is local
876 push @rout, $node->del($parent);
877 push @rout, $call if $dxchan && @rout == 0;
880 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
884 if (eph_dup($line)) {
889 $self->route_pc21($origin, $line, @rout);
890 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
902 if ($self->{do_pc9x}) {
903 if ($self->{state} ne 'init92') {
904 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
905 $self->{do_pc9x} = 0;
908 $self->{lastping} = 0;
909 $self->state('normal');
910 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
921 # route foreign' pc27s
923 if ($_[8] ne $main::mycall) {
924 $self->route($_[8], $line);
931 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
932 my $sfi = unpad($_[3]);
933 my $k = unpad($_[4]);
934 my $i = unpad($_[5]);
935 my ($r) = $_[6] =~ /R=(\d+)/;
937 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
938 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
942 # global wwv filtering on INPUT
943 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
944 if ($self->{inwwvfilter}) {
945 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
947 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
951 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
952 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
953 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
957 # note this only takes the first one it gets
958 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
960 if (defined &Local::wwv) {
963 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
968 # DON'T be silly and send on PC27s!
969 return if $pcno == 27;
971 # broadcast to the eager world
972 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
984 $nref = Route::Node::get($call);
985 $uref = Route::User::get($call);
986 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
988 if (eph_dup($line)) {
992 $nref->here($_[2]) if $nref;
993 $uref->here($_[2]) if $uref;
994 my $ref = $nref || $uref;
995 return unless $self->in_filter_route($ref);
997 $self->route_pc24($origin, $line, $ref, $_[3]);
1007 if ($_[1] ne $main::mycall) {
1008 $self->route($_[1], $line);
1011 if ($_[2] eq $main::mycall) {
1012 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
1016 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
1020 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
1023 $self->send(pc26(@{$in}[0..4], $_[2]));
1029 my @in = reverse Geomag::search(0, $_[4], time, 1);
1032 $self->send(pc27(@{$in}[0..5], $_[2]));
1037 sub handle_26 {goto &handle_11}
1038 sub handle_27 {goto &handle_23}
1040 # mail/file handling
1047 if ($_[1] eq $main::mycall) {
1049 my $sub = "DXMsg::handle_$pcno";
1052 $self->route($_[1], $line) unless $self->is_clx;
1056 sub handle_29 {goto &handle_28}
1057 sub handle_30 {goto &handle_28}
1058 sub handle_31 {goto &handle_28}
1059 sub handle_32 {goto &handle_28}
1060 sub handle_33 {goto &handle_28}
1068 if (eph_dup($line, $eph_pc34_restime)) {
1071 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1075 # remote command replies
1082 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1083 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1086 sub handle_36 {goto &handle_34}
1095 if ($_[1] eq $main::mycall) {
1097 my $sub = "DXDb::handle_$pcno";
1100 $self->route($_[1], $line) unless $self->is_clx;
1104 # node connected list from neighbour
1113 # incoming disconnect
1120 if ($_[1] eq $self->{call}) {
1121 $self->disconnect(1);
1123 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1127 sub handle_40 {goto &handle_28}
1140 my $l = "PC41^$call^$sort";
1141 if (eph_dup($l, $eph_info_restime)) {
1145 # input filter if required
1146 # my $ref = Route::get($call) || Route->new($call);
1147 # return unless $self->in_filter_route($ref);
1149 if ($val eq $sort || $val =~ /^\s*$/) {
1150 dbg('PCPROT: invalid value') if isdbg('chanerr');
1154 # add this station to the user database, if required
1155 my $user = DXUser::get_current($call);
1156 $user = DXUser->new($call) unless $user;
1159 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1160 dbg("PCPROT: invalid name") if isdbg('chanerr');
1161 if ($main::mycall eq 'GB7DJK' || $main::mycall eq 'GB7BAA' || $main::mycall eq 'WR3D') {
1162 DXChannel::broadcast_nodes(pc41($_[1], 1, $user->name)); # send it to everyone including me
1167 } elsif ($sort == 2) {
1169 } elsif ($sort == 3) {
1170 if (is_latlong($val)) {
1171 my ($lat, $long) = DXBearing::stoll($val);
1172 $user->lat($lat) if $lat;
1173 $user->long($long) if $long;
1174 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1176 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1179 } elsif ($sort == 4) {
1180 $user->homenode($val);
1181 } elsif ($sort == 5) {
1182 if (is_qra(uc $val)) {
1183 my ($lat, $long) = DXBearing::qratoll(uc $val);
1184 $user->lat($lat) if $lat && !$user->lat;
1185 $user->long($long) if $long && !$user->long;
1186 $user->qra(uc $val);
1188 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1192 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1195 unless ($self->{isolate}) {
1196 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1199 # perhaps this IS what we want after all
1200 # $self->route_pc41($ref, $call, $sort, $val, $_[4]);
1203 sub handle_42 {goto &handle_28}
1207 sub handle_44 {goto &handle_37}
1208 sub handle_45 {goto &handle_37}
1209 sub handle_46 {goto &handle_37}
1210 sub handle_47 {goto &handle_37}
1211 sub handle_48 {goto &handle_37}
1213 # message and database
1221 if (eph_dup($line)) {
1225 if ($_[1] eq $main::mycall) {
1226 DXMsg::handle_49($self, @_);
1228 $self->route($_[1], $line) unless $self->is_clx;
1232 # keep alive/user list
1240 return if (eph_dup($line));
1244 RouteDB::update($call, $self->{call});
1246 my $node = Route::Node::get($call);
1248 return unless $node->call eq $self->{call};
1249 $node->usercount($_[2]) unless $node->users;
1252 # input filter if required
1253 # return unless $self->in_filter_route($node);
1255 unless ($self->{isolate}) {
1256 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1258 # $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1262 # incoming ping requests/answers
1275 if ($to eq $main::mycall) {
1277 $self->send(pc51($from, $to, '0'));
1279 DXXml::Ping::handle_ping_reply($self, $from);
1283 RouteDB::update($from, $self->{call});
1285 if (eph_dup($line)) {
1288 # route down an appropriate thingy
1289 $self->route($to, $line);
1293 sub handle_61 { goto &handle_11; }
1295 # dunno but route it
1303 if ($call ne $main::mycall) {
1304 $self->route($call, $line);
1318 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1319 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1320 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1323 @_ = map { unpad($_) } @_;
1325 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1329 my $wcy = WCY::update($d, @_[2..12]);
1331 if (defined &Local::wcy) {
1334 $rep = Local::wcy($self, @_[1..12]);
1339 # broadcast to the eager world
1340 send_wcy_spot($self, $line, $d, @_[2..12]);
1343 # remote commands (incoming)
1350 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1353 # remote command replies
1360 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1363 # decode a pc92 call: flag call : version : build
1364 sub _decode_pc92_call
1367 my @part = split /:/, $icall;
1368 my ($flag, $call) = unpack "A A*", $part[0];
1369 unless (defined $flag && $flag ge '0' && $flag le '7') {
1370 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1373 unless ($call && is_callsign($call)) {
1374 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1377 my $is_node = $flag & 4;
1378 my $is_extnode = $flag & 2;
1379 my $here = $flag & 1;
1380 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);
1383 # decode a pc92 call: flag call : version : build
1384 sub _encode_pc92_call
1388 # plain call or value
1389 return $ref unless ref $ref;
1393 my $call = $ref->call;
1395 $flag |= $ref->here ? 1 : 0;
1396 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1398 my $dxchan = DXChannel::get($call);
1399 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1401 if ($ref->version) {
1402 my $version = $ref->version || 1.0;
1403 $version = $version * 100 + 5300 if $version < 50;
1404 $extra .= ":" . $version;
1408 return "$flag$call$extra";
1418 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1423 dbg("ROUTE: added node $call to " . $parent->call) if isdbg('routelow');
1424 @rout = $parent->add($call, $version, Route::here($here));
1426 dbg("ROUTE: added user $call to " . $parent->call) if isdbg('routelow');
1427 @rout = $parent->add_user($call, Route::here($here));
1429 if ($pc92_slug_changes && $parent == $main::routeroot) {
1430 $things_add{$call} = Route::get($call);
1431 delete $things_del{$call};
1441 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1446 $ref = Route::Node::get($call);
1447 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1448 @rout = $ref->del($parent) if $ref;
1450 $ref = Route::User::get($call);
1451 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1452 @rout = $parent->del_user($ref) if $ref;
1454 if ($pc92_slug_changes && $parent == $main::routeroot) {
1455 $things_del{$call} = $ref unless exists $things_add{$call};
1456 delete $things_add{$call};
1462 # this will only happen if we are slugging changes and
1463 # there are some changes to be sent, it will create an add or a delete
1465 sub gen_pc92_changes
1467 my @add = values %things_add;
1468 my @del = values %things_del;
1469 return (\@add, \@del);
1472 sub clear_pc92_changes
1474 %things_add = %things_del = ();
1475 $last_pc92_slug = $main::systime;
1484 return $_last_pc9x_id;
1489 if (!$_last_time || $_last_time != $main::systime) {
1490 $_last_time = $main::systime;
1492 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1495 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1506 # check that the time is between 0 >= $t < 86400
1507 unless ($t >= 0 && $t < 86400) {
1508 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1512 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1513 my $now = $main::systime - $main::systime_daystart ;
1514 my $diff = abs($now - $t);
1515 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1516 my $c = ref $call ? $call->call : $call;
1517 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1521 my $parent = ref $call ? $call : Route::Node::get($call);
1523 # we only do this for external calls whose routing table
1524 # record come and go. The reference for mycall is permanent
1525 # and not that frequently used, it also never times out, so
1526 # the id on it is completely unreliable. Besides, only commands
1527 # originating on this box will go through this code...
1528 if ($parent->call ne $main::mycall) {
1529 my $lastid = $parent->lastid;
1530 if (defined $lastid) {
1532 # note that this is where we determine whether this pc9x has come in yesterday
1533 # but is still greater (modulo 86400) than the lastid or is simply an old
1534 # duplicate sentence. To determine this we need to do some module 86400
1535 # arithmetic. High numbers mean that this is an old duplicate sentence,
1536 # low numbers that it is a new sentence.
1538 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1539 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1540 # 86378 respectively in the calculation below).
1542 if ($t+86400-$lastid > $pc9x_past_age) {
1543 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1546 } elsif ($t == $lastid) {
1547 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1550 # check that if we have a low number in lastid that yesterday's numbers
1551 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1552 if ($lastid+86400-$t < $pc9x_past_age) {
1553 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1560 $parent = Route::Node->new($call);
1562 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1565 if (isdbg('pc92dedupe')) {
1566 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1567 my $val = $parent->{lastid};
1568 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1569 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1571 $parent->lastid($t);
1576 sub pc92_handle_first_slot
1582 my $oparent = $parent;
1586 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1587 if ($call && $is_node) {
1588 if ($call eq $main::mycall) {
1589 dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
1592 # this is only accepted from my "self".
1593 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1594 # locally connected. Local nodes always take precedence. But we remember the lastid
1595 # to try to reduce the number of dupe PC92s for this external node.
1596 if (DXChannel::get($call) && $call ne $self->{call}) {
1597 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1598 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1602 # reparent to external node (note that we must have received a 'C' or 'A' record
1603 # from the true parent node for this external before we get one for the this node
1604 unless ($parent = Route::Node::get($call)) {
1605 if ($is_extnode && $oparent) {
1606 @radd = _add_thingy($oparent, $slot);
1609 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1613 $parent = check_pc9x_t($call, $t, 92) || return;
1614 $parent->via_pc92(1);
1615 $parent->PC92C_dxchan($self->{call});
1618 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1621 $parent->here(Route::here($here));
1622 $parent->version($version || $pc19_version) if $version;
1623 $parent->build($build) if $build;
1624 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1625 return ($parent, @radd);
1628 # DXSpider routing entries
1642 # this catches loops of A/Ds
1643 # if (eph_dup($line, $pc9x_dupe_age)) {
1647 if ($pcall eq $main::mycall) {
1648 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1652 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1653 if ($self->{isolate}) {
1654 dbg("PC9x received, but $pcall is isolated, ignored");
1656 } elsif (!$self->user->wantpc9x) {
1657 dbg("PC9x explicitly switched off on $pcall, ignored");
1660 $self->state('init92');
1661 $self->{do_pc9x} = 1;
1662 dbg("Do pc9x set on $pcall");
1665 unless ($self->{do_pc9x}) {
1666 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1670 # don't create routing entries for D records that don't already exist
1671 # this is what causes all those PC92 loops!
1672 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1673 my $oparent = $parent;
1675 $parent->do_pc9x(1);
1676 $parent->via_pc92(1);
1678 if ($sort eq 'F' || $sort eq 'R') {
1680 # this is the route finding section
1681 # here is where the consequences of the 'find' command
1691 if ($ref = DXChannel::get($target)) {
1692 $flag = 1; # we are directly connected
1694 $ref = Route::get($target);
1695 $dxchan = $ref->dxchan;
1698 if ($ref && $flag && $dxchan) {
1699 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1702 } elsif ($sort eq 'R') {
1703 if (my $dxchan = DXChannel::get($from)) {
1704 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @_[6,7]);
1706 my $ref = Route::get($from);
1708 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1710 $_->send($line) for @dxchan;
1712 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1715 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1721 } elsif ($sort eq 'K') {
1722 $pc92Kin += length $line;
1724 # remember the last channel we arrived on
1725 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1727 my @ent = _decode_pc92_call($_[4]);
1732 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t);
1733 return unless $parent; # dupe
1735 push @radd, $add if $add;
1737 $parent->version($ent[4]) if $ent[4];
1738 $parent->build($ent[5]) if $ent[5];
1740 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1742 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1744 $pc92Ain += length $line if $sort eq 'A';
1745 $pc92Cin += length $line if $sort eq 'C';
1746 $pc92Din += length $line if $sort eq 'D';
1748 # remember the last channel we arrived on
1749 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1751 # this is the main route section
1752 # here is where all the routes are created and destroyed
1754 # cope with missing duplicate node calls in the first slot
1755 my $me = $_[4] || '';
1756 $me ||= _encode_pc92_call($parent) unless $me ;
1758 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
1762 # look at the first one which will always be a node of some sort
1763 # except in the case of 'A' or 'D' in which the $pcall is used
1764 # otherwise use the node call and update any information
1765 # that needs to be done.
1768 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t);
1769 return unless $parent; # dupe
1772 push @radd, $add if $add;
1775 # do a pass through removing any references to either locally connected nodes or mycall
1778 next unless $_ && @$_;
1779 if ($_->[0] eq $main::mycall || DXChannel::get($_->[0])) {
1780 dbg("PCPROT: $_->[0] refers to locally connected node, ignored") if isdbg('chanerr');
1788 push @radd, _add_thingy($parent, $_);
1790 } elsif ($sort eq 'D') {
1792 push @rdel, _del_thingy($parent, $_);
1794 } elsif ($sort eq 'C') {
1795 my (@nodes, @users);
1797 # we reset obscounts on config records as well as K records
1799 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1802 foreach my $r (@nent) {
1803 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1806 push @nodes, $r->[0];
1808 push @users, $r->[0];
1811 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1815 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1818 foreach my $r (@nent) {
1821 push @radd,_add_thingy($parent, $r) if grep $call eq $_, (@$nnodes, @$nusers);
1825 foreach my $r (@$dnodes) {
1826 push @rdel,_del_thingy($parent, [$r, 1]);
1828 foreach my $r (@$dusers) {
1829 push @rdel,_del_thingy($parent, [$r, 0]);
1832 # remember this last PC92C for rebroadcast on demand
1833 $parent->last_PC92C($line);
1835 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1839 foreach my $r (@rdel) {
1842 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1843 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1845 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1846 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1847 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1848 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1849 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1852 # broadcast it if we get here
1853 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1864 # $self->{do_pc9x} ||= 1;
1866 my $pcall = $_[1]; # this is now checked earlier
1868 # remember that we are converting PC10->PC93 and self will be $main::me if it
1870 unless ($self->{do_pc9x}) {
1871 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1876 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
1879 my $from = uc $_[4];
1882 my $onode = uc $_[7];
1883 $onode = $pcall if @_ <= 8;
1885 # this is catch loops caused by bad software ...
1886 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
1890 # will we allow it at all?
1893 if (@bad = BadWords::check($text)) {
1894 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
1899 # if this is a 'bad spotter' user then ignore it
1901 $nossid =~ s/-\d+$//;
1902 if ($badspotter->in($nossid)) {
1903 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
1907 # ignore PC93 coming in from outside this node with a target of local
1908 if ($to eq 'LOCAL' && $self != $main::me) {
1909 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
1913 # if it is routeable then then treat it like a talk
1914 my $ref = Route::get($to);
1918 $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall;
1919 $dxchan = DXChannel::get($to) unless $dxchan;
1922 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1923 if ($dxchan->is_user) {
1924 $dxchan->talk($from, $to, $via, $text, $onode);
1928 dbg("ERROR: $to -> $dxchan is not a DXChannel! (local talk)");
1932 # convert to PC10 talks where appropriate
1933 # just go for the "best" one for now (rather than broadcast)
1934 $dxchan = $ref->dxchan;
1937 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1938 if ($dxchan->{do_pc9x}) {
1939 $dxchan->send($line);
1941 $dxchan->talk($from, $to, $via, $text, $onode);
1944 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
1948 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
1950 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
1951 my $wx = $to eq 'WX' ? '1' : '0';
1952 my $local = $via eq 'LOCAL' ? '*' : $via;
1954 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
1955 return if $via eq 'LOCAL';
1956 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
1957 # chat messages to non-pc9x nodes
1958 $self->send_chat(1, pc12($from, $text, undef, $to, undef, $pcall), $from, '*', $text, $to, $pcall, '0');
1961 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
1962 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
1965 # if get here then rebroadcast the thing with its Hop count decremented (if
1966 # there is one). If it has a hop count and it decrements to zero then don't
1969 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1980 unless (eph_dup($line)) {
1983 unless (is_callsign($pcall)) {
1984 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
1988 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
1989 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1991 unless ($self->{isolate}) {
1992 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me