3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
38 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
39 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
40 $pingint $obscount %pc19list $chatdupeage $chatimportfn
41 $investigation_int $pc19_version $myprot_version
42 %nodehops $baddx $badspotter $badnode $censorpc
43 $allowzero $decode_dk0wcy $send_opernam @checklist
44 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
45 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
46 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
50 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
51 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
52 $pc92_slug_changes = 60*5; # slug any changes going outward for this long
53 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
54 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
55 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
56 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
57 # this is actually the partition between "yesterday" and "today" but old.
59 $pc92filterdef = bless ([
60 # tag, sort, field, priv, special parser
69 # incoming talk commands
77 # this is to catch loops caused by bad software ...
78 if (eph_dup($line, $pc10_dupe_age)) {
82 # will we allow it at all?
85 if (@bad = BadWords::check($_[3])) {
86 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
91 # is it for me or one of mine?
92 my ($from, $to, $via, $call, $dxchan);
101 # if this is a 'nodx' node then ignore it
102 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
103 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
107 # if this is a 'bad spotter' user then ignore it
109 $nossid =~ s/-\d+$//;
110 if ($badspotter->in($nossid)) {
111 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
115 # if we are converting announces to talk is it a dup?
117 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
118 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
123 # convert this to a PC93, coming from mycall with origin set and process it as such
124 $main::me->normal(pc93($to, $from, $via, $_[3], $_[6]));
135 # route 'foreign' pc26s
137 if ($_[7] ne $main::mycall) {
138 $self->route($_[7], $line);
143 # my ($hops) = $_[8] =~ /^H(\d+)/;
145 # is the spotted callsign blank? This should really be trapped earlier but it
146 # could break other protocol sentences. Also check for lower case characters.
147 if ($_[2] =~ /^\s*$/) {
148 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
151 if ($_[2] =~ /[a-z]/) {
152 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
157 # if this is a 'nodx' node then ignore it
158 if ($badnode->in($_[7])) {
159 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
163 # if this is a 'bad spotter' user then ignore it
165 $nossid =~ s/-\d+$//;
166 if ($badspotter->in($nossid)) {
167 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
171 # convert the date to a unix date
172 my $d = cltounix($_[3], $_[4]);
173 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
174 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
175 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
180 if ($baddx->in($_[2]) || BadWords::check($_[2])) {
181 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
186 $_[5] =~ s/^\s+//; # take any leading blanks off
187 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
188 if ($_[2] =~ /BUST\w*$/) {
189 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
194 if (@bad = BadWords::check($_[5])) {
195 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
200 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7], $_[8]);
201 # global spot filtering on INPUT
202 if ($self->{inspotsfilter}) {
203 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
205 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
210 # this goes after the input filtering, but before the add
211 # so that if it is input filtered, it isn't added to the dup
212 # list. This allows it to come in from a "legitimate" source
213 if (Spot::dup(@spot[0..4,5])) {
214 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
222 # @spot at this point contains:-
223 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
224 # then spotted itu, spotted cq, spotters itu, spotters cq
225 # you should be able to route on any of these
228 # fix up qra locators of known users
229 my $user = DXUser::get_current($spot[4]);
231 my $qra = $user->qra;
232 unless ($qra && is_qra($qra)) {
233 my $lat = $user->lat;
234 my $long = $user->long;
235 if (defined $lat && defined $long) {
236 $user->qra(DXBearing::lltoqra($lat, $long));
241 # send a remote command to a distant cluster if it is visible and there is no
242 # qra locator and we havn't done it for a month.
244 unless ($user->qra) {
246 my $to = $user->homenode;
247 my $last = $user->lastoper || 0;
248 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
249 my $cmd = "forward/opernam $spot[4]";
250 # send the rcmd but we aren't interested in the replies...
251 my $dxchan = $node->dxchan;
252 if ($dxchan && $dxchan->is_clx) {
253 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
255 route(undef, $to, pc34($main::mycall, $to, $cmd));
259 $node = Route::Node::get($to);
261 $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 $user->lastoper($main::systime);
276 if (defined &Local::spot) {
279 $r = Local::spot($self, @spot);
284 # DON'T be silly and send on PC26s!
285 return if $pcno == 26;
287 # send out the filtered spots
288 send_dx_spot($self, $line, @spot) if @spot;
299 # announce duplicate checking
300 $_[3] =~ s/^\s+//; # remove leading blanks
304 if (@bad = BadWords::check($_[3])) {
305 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
310 # if this is a 'nodx' node then ignore it
311 if ($badnode->in($_[5])) {
312 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
316 # if this is a 'bad spotter' user then ignore it
318 $nossid =~ s/-\d+$//;
319 if ($badspotter->in($nossid)) {
320 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
324 # ignore PC12s from origins that use PCxx protocol
325 my $oref = Route::get($origin);
326 if ($oref->do_pc9x) {
327 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
333 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
334 $self->send_chat(0, $line, @_[1..6]);
335 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
337 # ignore something that looks like a chat line coming in with sysop
338 # flag - this is a kludge...
339 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
340 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
344 # here's a bit of fun, convert incoming ann with a callsign in the first word
345 # or one saying 'to <call>' to a talk if we can route to the recipient
347 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
349 my $ref = Route::get($call);
351 $dxchan = $ref->dxchan;
352 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
359 $self->send_announce(0, $line, @_[1..6]);
361 $self->route($_[2], $line);
365 if (defined &Local::ann) {
368 $r = Local::ann($self, $line, @_[1..6]);
381 if (eph_dup($line, $eph_pc15_restime)) {
384 unless ($self->{isolate}) {
385 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
401 my $newline = "PC16^";
403 # dos I want users from this channel?
404 unless ($self->user->wantpc16) {
405 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
410 if ($ncall eq $main::mycall) {
411 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
416 $h = 1 if DXChannel::get($ncall);
417 if ($h && $self->{call} ne $ncall) {
418 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
422 if (eph_dup($line)) {
426 # isolate now means only accept stuff from this call only
427 if ($self->{isolate} && $ncall ne $self->{call}) {
428 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
432 my $parent = Route::Node::get($ncall);
435 $dxchan = $parent->dxchan;
436 if ($dxchan && $dxchan ne $self) {
437 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
441 # input filter if required
442 return unless $self->in_filter_route($parent);
444 $parent = Route::Node->new($ncall);
448 if ($parent->via_pc92) {
449 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
456 for ($i = 2; $i < $#_; $i++) {
457 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
458 next unless $call && $conf && defined $here && is_callsign($call);
459 next if $call eq $main::mycall;
461 eph_del_regex("^PC17\\^$call\\^$ncall");
463 $conf = $conf eq '*';
465 # reject this if we think it is a node already
466 my $r = Route::Node::get($call);
467 my $u = DXUser::get_current($call) unless $r;
468 if ($r || ($u && $u->is_node)) {
469 dbg("PCPROT: $call is a node") if isdbg('chanerr');
473 $r = Route::User::get($call);
474 my $flags = Route::here($here)|Route::conf($conf);
477 my $au = $r->addparent($parent);
478 if ($r->flags != $flags) {
482 push @rout, $r if $h && $au;
484 my @ans = $parent->add_user($call, $flags);
485 push @rout, @ans if $h && @ans;
488 # add this station to the user database, if required
489 my $user = DXUser::get_current($ncall);
490 $user = DXUser->new($call) unless $user;
491 $user->homenode($parent->call) if !$user->homenode;
492 $user->node($parent->call);
493 $user->lastin($main::systime) unless DXChannel::get($call);
496 # send info to all logged in thingies
497 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
498 $self->tell_buddies('loginb', $call, $ncall);
501 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
502 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
517 eph_del_regex("^PC16\\^$ncall.*$ucall");
519 # do I want users from this channel?
520 unless ($self->user->wantpc16) {
521 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
525 if ($ncall eq $main::mycall) {
526 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
530 # isolate now means only accept stuff from this call only
531 if ($self->{isolate} && $ncall ne $self->{call}) {
532 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
536 my $uref = Route::User::get($ucall);
538 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
541 my $parent = Route::Node::get($ncall);
543 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
547 $dxchan = DXChannel::get($ncall);
548 if ($dxchan && $dxchan ne $self) {
549 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
554 if ($parent->via_pc92) {
555 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
560 if (DXChannel::get($ucall)) {
561 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
565 # input filter if required and then remove user if present
566 # return unless $self->in_filter_route($parent);
567 $parent->del_user($uref);
569 # send info to all logged in thingies
570 my $user = DXUser::get_current($ncall);
571 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
572 $self->tell_buddies('logoutb', $ucall, $ncall);
574 if (eph_dup($line)) {
578 $self->route_pc17($origin, $line, $parent, $uref);
579 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
589 $self->state('init');
591 my $parent = Route::Node::get($self->{call});
593 # record the type and version offered
594 if (my ($version) = $_[1] =~ /DXSpider Version: (\d+\.\d+)/) {
595 $self->{version} = 53 + $version;
596 $self->user->version(53 + $version);
597 $parent->version(0 + $version);
598 my ($build) = $_[1] =~ /Build: (\d+(?:\.\d+)?)/;
599 $self->{build} = 0 + $build;
600 $self->user->build(0 + $build);
601 $parent->build(0 + $build);
602 dbg("DXSpider version $version build $build");
603 unless ($self->is_spider) {
604 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
605 $self->user->sort('S');
609 # $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml/;
611 dbg("Unknown software");
612 $self->version(50.0);
613 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
614 $self->user->version($self->version);
617 if ($_[1] =~ /\bpc9x/) {
618 if ($self->{isolate}) {
619 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
620 } elsif (!$self->user->wantpc9x) {
621 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
623 $self->{do_pc9x} = 1;
624 dbg("Do px9x set on $self->{call}");
628 # first clear out any nodes on this dxchannel
629 my @rout = $parent->del_nodes;
630 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
631 $self->send_local_config();
639 # add this station to the user database, if required (don't remove SSID from nodes)
640 my $user = DXUser::get_current($call);
642 $user = DXUser->new($call);
643 $user->priv(1); # I have relented and defaulted nodes
645 $user->homenode($call);
648 $user->sort('A') unless $user->is_node;
652 # incoming cluster list
661 my $newline = "PC19^";
664 my (@rout, @pc92out);
666 # first get the INTERFACE node
667 my $parent = Route::Node::get($self->{call});
669 dbg("PCPROT: my parent $self->{call} has disappeared");
678 # We are making a major change from now on. We are only going to accept
679 # PC19s from directly connected nodes. This means that we are probably
680 # going to throw away most of the data that we are being sent.
682 # The justification for this is that most of it is wrong or out of date
685 # From now on we are only going to believe PC92 data and locally connected
688 for ($i = 1; $i < $#_-1; $i += 4) {
690 my $call = uc $_[$i+1];
693 next unless defined $here && defined $conf && is_callsign($call);
695 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
697 # check for sane parameters
698 # $ver = 5000 if $ver eq '0000';
699 next unless $ver && $ver =~ /^\d+$/;
700 next if $ver < 5000; # only works with version 5 software
701 next if length $call < 3; # min 3 letter callsigns
702 next if $call eq $main::mycall;
704 # check that this PC19 isn't trying to alter the wrong dxchan
706 my $dxchan = DXChannel::get($call);
708 if ($dxchan == $self) {
711 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
716 # isolate now means only accept stuff from this call only
717 if ($self->{isolate} && $call ne $self->{call}) {
718 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
722 my $user = check_add_node($call);
724 # if (eph_dup($genline)) {
725 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
731 if ($parent->via_pc92) {
732 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
737 my $r = Route::Node::get($call);
738 my $flags = Route::here($here)|Route::conf($conf);
740 # modify the routing table if it is in it, otherwise store it in the pc19list for now
743 if ($call ne $parent->call) {
744 if ($self->in_filter_route($r)) {
745 $ar = $parent->add($call, $ver, $flags);
746 # push @rout, $ar if $ar;
751 if ($r->version ne $ver || $r->flags != $flags) {
757 if ($call eq $self->{call} || $user->wantroutepc19) {
758 my $new = Route->new($call); # throw away
759 if ($self->in_filter_route($new)) {
760 my $ar = $parent->add($call, $ver, $flags);
761 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
762 push @rout, $ar if $ar;
763 push @pc92out, $r if $h;
770 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
771 my $mref = DXMsg::get_busy($call);
772 $mref->stop_msg($call) if $mref;
774 $user->lastin($main::systime) unless DXChannel::get($call);
778 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
779 # but remember there will only be one (pair) these because any extras will be
782 # $self->route_pc21($self->{call}, $line, @rout);
783 $self->route_pc19($self->{call}, $line, @rout);
785 if (@pc92out && !$pc92_slug_changes) {
786 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
790 # send local configuration
798 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
799 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
800 $self->{do_pc9x} = 0;
802 $self->send_local_config;
804 $self->state('normal');
805 $self->{lastping} = 0;
806 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
809 # delete a cluster from the list
811 # This should never occur for directly connected nodes.
821 eph_del_regex("^PC1[679].*$call");
823 # if I get a PC21 from the same callsign as self then ignore it
824 if ($call eq $self->{call}) {
825 dbg("PCPROT: self referencing PC21 from $self->{call}");
829 # for the above reason and also because of the check for PC21s coming
830 # in for self->call from outside being ignored further down
831 # we don't need any isolation code here, because we will never
832 # act on a PC21 with self->call in it.
834 my $parent = Route::Node::get($self->{call});
836 dbg("PCPROT: my parent $self->{call} has disappeared");
843 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
844 my $node = Route::Node::get($call);
847 if ($node->via_pc92) {
848 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
852 my $dxchan = DXChannel::get($call);
853 if ($dxchan && $dxchan != $self) {
854 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
859 return unless $self->in_filter_route($node);
861 # routing objects, force a PC21 if it is local
862 push @rout, $node->del($parent);
863 push @rout, $call if $dxchan && @rout == 0;
866 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
870 if (eph_dup($line)) {
875 $self->route_pc21($origin, $line, @rout);
876 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
888 if ($self->{do_pc9x}) {
889 if ($self->{state} ne 'init92') {
890 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
891 $self->{do_pc9x} = 0;
894 $self->{lastping} = 0;
895 $self->state('normal');
896 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
907 # route foreign' pc27s
909 if ($_[8] ne $main::mycall) {
910 $self->route($_[8], $line);
917 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
918 my $sfi = unpad($_[3]);
919 my $k = unpad($_[4]);
920 my $i = unpad($_[5]);
921 my ($r) = $_[6] =~ /R=(\d+)/;
923 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
924 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
928 # global wwv filtering on INPUT
929 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
930 if ($self->{inwwvfilter}) {
931 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
933 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
937 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
938 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
939 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
943 # note this only takes the first one it gets
944 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
946 if (defined &Local::wwv) {
949 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
954 # DON'T be silly and send on PC27s!
955 return if $pcno == 27;
957 # broadcast to the eager world
958 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
970 $nref = Route::Node::get($call);
971 $uref = Route::User::get($call);
972 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
974 if (eph_dup($line)) {
978 $nref->here($_[2]) if $nref;
979 $uref->here($_[2]) if $uref;
980 my $ref = $nref || $uref;
981 return unless $self->in_filter_route($ref);
983 $self->route_pc24($origin, $line, $ref, $_[3]);
993 if ($_[1] ne $main::mycall) {
994 $self->route($_[1], $line);
997 if ($_[2] eq $main::mycall) {
998 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
1002 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
1006 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
1009 $self->send(pc26(@{$in}[0..4], $_[2]));
1015 my @in = reverse Geomag::search(0, $_[4], time, 1);
1018 $self->send(pc27(@{$in}[0..5], $_[2]));
1023 sub handle_26 {goto &handle_11}
1024 sub handle_27 {goto &handle_23}
1026 # mail/file handling
1033 if ($_[1] eq $main::mycall) {
1035 my $sub = "DXMsg::handle_$pcno";
1038 $self->route($_[1], $line) unless $self->is_clx;
1042 sub handle_29 {goto &handle_28}
1043 sub handle_30 {goto &handle_28}
1044 sub handle_31 {goto &handle_28}
1045 sub handle_32 {goto &handle_28}
1046 sub handle_33 {goto &handle_28}
1054 if (eph_dup($line, $eph_pc34_restime)) {
1057 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1061 # remote command replies
1068 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1069 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1072 sub handle_36 {goto &handle_34}
1081 if ($_[1] eq $main::mycall) {
1083 my $sub = "DXDb::handle_$pcno";
1086 $self->route($_[1], $line) unless $self->is_clx;
1090 # node connected list from neighbour
1099 # incoming disconnect
1106 if ($_[1] eq $self->{call}) {
1107 $self->disconnect(1);
1109 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1113 sub handle_40 {goto &handle_28}
1126 my $l = "PC41^$call^$sort";
1127 if (eph_dup($l, $eph_info_restime)) {
1131 # input filter if required
1132 # my $ref = Route::get($call) || Route->new($call);
1133 # return unless $self->in_filter_route($ref);
1135 if ($val eq $sort || $val =~ /^\s*$/) {
1136 dbg('PCPROT: invalid value') if isdbg('chanerr');
1140 # add this station to the user database, if required
1141 my $user = DXUser::get_current($call);
1142 $user = DXUser->new($call) unless $user;
1145 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1146 dbg("PCPROT: invalid name") if isdbg('chanerr');
1147 if ($main::mycall eq 'GB7DJK' || $main::mycall eq 'GB7BAA' || $main::mycall eq 'WR3D') {
1148 DXChannel::broadcast_nodes(pc41($_[1], 1, $user->name)); # send it to everyone including me
1153 } elsif ($sort == 2) {
1155 } elsif ($sort == 3) {
1156 if (is_latlong($val)) {
1157 my ($lat, $long) = DXBearing::stoll($val);
1158 $user->lat($lat) if $lat;
1159 $user->long($long) if $long;
1160 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1162 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1165 } elsif ($sort == 4) {
1166 $user->homenode($val);
1167 } elsif ($sort == 5) {
1168 if (is_qra(uc $val)) {
1169 my ($lat, $long) = DXBearing::qratoll(uc $val);
1170 $user->lat($lat) if $lat && !$user->lat;
1171 $user->long($long) if $long && !$user->long;
1172 $user->qra(uc $val);
1174 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1178 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1181 unless ($self->{isolate}) {
1182 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1185 # perhaps this IS what we want after all
1186 # $self->route_pc41($ref, $call, $sort, $val, $_[4]);
1189 sub handle_42 {goto &handle_28}
1193 sub handle_44 {goto &handle_37}
1194 sub handle_45 {goto &handle_37}
1195 sub handle_46 {goto &handle_37}
1196 sub handle_47 {goto &handle_37}
1197 sub handle_48 {goto &handle_37}
1199 # message and database
1207 if (eph_dup($line)) {
1211 if ($_[1] eq $main::mycall) {
1212 DXMsg::handle_49($self, @_);
1214 $self->route($_[1], $line) unless $self->is_clx;
1218 # keep alive/user list
1226 return if (eph_dup($line));
1230 my $node = Route::Node::get($call);
1232 return unless $node->call eq $self->{call};
1233 $node->usercount($_[2]) unless $node->users;
1235 $node->PC92C_dxchan($self->call, $_[-1]);
1237 # input filter if required
1238 # return unless $self->in_filter_route($node);
1240 unless ($self->{isolate}) {
1241 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1243 # $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1247 # incoming ping requests/answers
1260 if ($to eq $main::mycall) {
1262 $self->send(pc51($from, $to, '0'));
1264 DXXml::Ping::handle_ping_reply($self, $from);
1267 if (eph_dup($line)) {
1270 # route down an appropriate thingy
1271 $self->route($to, $line);
1275 sub handle_61 { goto &handle_11; }
1277 # dunno but route it
1285 if ($call ne $main::mycall) {
1286 $self->route($call, $line);
1300 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1301 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1302 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1305 @_ = map { unpad($_) } @_;
1307 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1311 my $wcy = WCY::update($d, @_[2..12]);
1313 if (defined &Local::wcy) {
1316 $rep = Local::wcy($self, @_[1..12]);
1321 # broadcast to the eager world
1322 send_wcy_spot($self, $line, $d, @_[2..12]);
1325 # remote commands (incoming)
1332 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1335 # remote command replies
1342 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1345 # decode a pc92 call: flag call : version : build
1346 sub _decode_pc92_call
1349 my @part = split /:/, $icall;
1350 my ($flag, $call) = unpack "A A*", $part[0];
1351 unless (defined $flag && $flag ge '0' && $flag le '7') {
1352 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1355 unless ($call && is_callsign($call)) {
1356 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1359 my $is_node = $flag & 4;
1360 my $is_extnode = $flag & 2;
1361 my $here = $flag & 1;
1363 $ip ||= $part[1] if $part[1] && ($part[1] =~ /^(?:\d+\.)+/ || $part[1] =~ /^(?:(?:[abcdef\d]+)?,)+/);
1364 $ip =~ s/,/:/g if $ip;
1365 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1368 # decode a pc92 call: flag call : version : build
1369 sub _encode_pc92_call
1373 # plain call or value
1374 return $ref unless ref $ref;
1376 my $ext = shift || 0;
1378 my $call = $ref->call;
1380 $flag |= $ref->here ? 1 : 0;
1381 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1383 my $dxchan = DXChannel::get($call);
1384 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1385 if (($ext & 1) && $ref->version) {
1386 my $version = $ref->version || 1.0;
1387 $version = $version * 100 + 5300 if $version < 50;
1388 $extra .= ":" . $version;
1391 if (($ext & 2) && $ref->ip) {
1394 $extra .= ':' . $ip;
1396 return "$flag$call$extra";
1409 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1413 my $ncall = $parent->call;
1415 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1416 @rout = $parent->add($call, $version, Route::here($here), $ip);
1417 my $r = Route::Node::get($call);
1418 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1421 Log('DXProt', "PC92A $call -> $ip on $ncall");
1424 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1425 @rout = $parent->add_user($call, Route::here($here), $ip);
1426 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1427 my $r = Route::User::get($call);
1430 Log('DXProt', "PC92A $call -> $ip on $ncall");
1433 if ($pc92_slug_changes && $parent == $main::routeroot) {
1434 $things_add{$call} = Route::get($call);
1435 delete $things_del{$call};
1446 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1451 $ref = Route::Node::get($call);
1452 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1453 @rout = $ref->del($parent) if $ref;
1455 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1456 $ref = Route::User::get($call);
1458 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1459 @rout = $parent->del_user($ref);
1462 if ($pc92_slug_changes && $parent == $main::routeroot) {
1463 $things_del{$call} = $ref unless exists $things_add{$call};
1464 delete $things_add{$call};
1470 # this will only happen if we are slugging changes and
1471 # there are some changes to be sent, it will create an add or a delete
1473 sub gen_pc92_changes
1475 my @add = values %things_add;
1476 my @del = values %things_del;
1477 return (\@add, \@del);
1480 sub clear_pc92_changes
1482 %things_add = %things_del = ();
1483 $last_pc92_slug = $main::systime;
1492 return $_last_pc9x_id;
1497 if (!$_last_time || $_last_time != $main::systime) {
1498 $_last_time = $main::systime;
1500 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1503 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1514 # check that the time is between 0 >= $t < 86400
1515 unless ($t >= 0 && $t < 86400) {
1516 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1520 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1521 my $now = $main::systime - $main::systime_daystart ;
1522 my $diff = abs($now - $t);
1523 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1524 my $c = ref $call ? $call->call : $call;
1525 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1529 my $parent = ref $call ? $call : Route::Node::get($call);
1531 # we only do this for external calls whose routing table
1532 # record come and go. The reference for mycall is permanent
1533 # and not that frequently used, it also never times out, so
1534 # the id on it is completely unreliable. Besides, only commands
1535 # originating on this box will go through this code...
1536 if ($parent->call ne $main::mycall) {
1537 my $lastid = $parent->lastid;
1538 if (defined $lastid) {
1540 # note that this is where we determine whether this pc9x has come in yesterday
1541 # but is still greater (modulo 86400) than the lastid or is simply an old
1542 # duplicate sentence. To determine this we need to do some module 86400
1543 # arithmetic. High numbers mean that this is an old duplicate sentence,
1544 # low numbers that it is a new sentence.
1546 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1547 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1548 # 86378 respectively in the calculation below).
1550 if ($t+86400-$lastid > $pc9x_past_age) {
1551 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1554 } elsif ($t == $lastid) {
1555 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1558 # check that if we have a low number in lastid that yesterday's numbers
1559 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1560 if ($lastid+86400-$t < $pc9x_past_age) {
1561 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1568 $parent = Route::Node->new($call);
1570 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1573 if (isdbg('pc92dedupe')) {
1574 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1575 my $val = $parent->{lastid};
1576 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1577 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1579 $parent->lastid($t);
1584 sub pc92_handle_first_slot
1591 my $oparent = $parent;
1595 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1596 if ($call && $is_node) {
1597 if ($call eq $main::mycall) {
1598 dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
1601 # this is only accepted from my "self".
1602 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1603 # locally connected. Local nodes always take precedence. But we remember the lastid
1604 # to try to reduce the number of dupe PC92s for this external node.
1605 if (DXChannel::get($call) && $call ne $self->{call}) {
1606 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1607 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1611 # reparent to external node (note that we must have received a 'C' or 'A' record
1612 # from the true parent node for this external before we get one for the this node
1613 unless ($parent = Route::Node::get($call)) {
1614 if ($is_extnode && $oparent) {
1615 @radd = _add_thingy($oparent, $slot, $self, $hops);
1618 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1622 $parent = check_pc9x_t($call, $t, 92) || return;
1623 $parent->via_pc92(1);
1624 $parent->PC92C_dxchan($self->{call}, $hops);
1627 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1630 $parent->here(Route::here($here));
1631 $parent->version($version || $pc19_version) if $version;
1632 $parent->build($build) if $build;
1633 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1634 return ($parent, @radd);
1637 # DXSpider routing entries
1652 # this catches loops of A/Ds
1653 # if (eph_dup($line, $pc9x_dupe_age)) {
1657 if ($pcall eq $main::mycall) {
1658 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1662 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1663 if ($self->{isolate}) {
1664 dbg("PC9x received, but $pcall is isolated, ignored");
1666 } elsif (!$self->user->wantpc9x) {
1667 dbg("PC9x explicitly switched off on $pcall, ignored");
1670 $self->state('init92');
1671 $self->{do_pc9x} = 1;
1672 dbg("Do pc9x set on $pcall");
1675 unless ($self->{do_pc9x}) {
1676 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1680 # don't create routing entries for D records that don't already exist
1681 # this is what causes all those PC92 loops!
1682 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1683 my $oparent = $parent;
1685 $parent->do_pc9x(1);
1686 $parent->via_pc92(1);
1688 if ($sort eq 'F' || $sort eq 'R') {
1690 # this is the route finding section
1691 # here is where the consequences of the 'find' command
1701 if ($ref = DXChannel::get($target)) {
1702 $flag = 1; # we are directly connected
1704 $ref = Route::get($target);
1705 $dxchan = $ref->dxchan;
1708 if ($ref && $flag && $dxchan) {
1709 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1712 } elsif ($sort eq 'R') {
1713 if (my $dxchan = DXChannel::get($from)) {
1714 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @_[6,7]);
1716 my $ref = Route::get($from);
1718 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1720 $_->send($line) for @dxchan;
1722 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1725 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1731 } elsif ($sort eq 'K') {
1732 $pc92Kin += length $line;
1734 # remember the last channel we arrived on
1735 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1737 my @ent = _decode_pc92_call($_[4]);
1742 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1743 return unless $parent; # dupe
1745 push @radd, $add if $add;
1747 $parent->version($ent[4]) if $ent[4];
1748 $parent->build($ent[5]) if $ent[5];
1750 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1752 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1754 $pc92Ain += length $line if $sort eq 'A';
1755 $pc92Cin += length $line if $sort eq 'C';
1756 $pc92Din += length $line if $sort eq 'D';
1758 # remember the last channel we arrived on
1759 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1761 # this is the main route section
1762 # here is where all the routes are created and destroyed
1764 # cope with missing duplicate node calls in the first slot
1765 my $me = $_[4] || '';
1766 $me ||= _encode_pc92_call($parent) unless $me ;
1768 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
1772 # look at the first one which will always be a node of some sort
1773 # except in the case of 'A' or 'D' in which the $pcall is used
1774 # otherwise use the node call and update any information
1775 # that needs to be done.
1778 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
1779 return unless $parent; # dupe
1782 push @radd, $add if $add;
1785 # do a pass through removing any references to either mycall
1789 next unless $_ && @$_;
1790 if ($_->[0] eq $main::mycall) {
1791 dbg("PCPROT: $_->[0] refers to me, ignored") if isdbg('chanerr');
1799 push @radd, _add_thingy($parent, $_, $self, $hops);
1801 } elsif ($sort eq 'D') {
1803 push @rdel, _del_thingy($parent, $_, $self);
1805 } elsif ($sort eq 'C') {
1806 my (@nodes, @users);
1808 # we reset obscounts on config records as well as K records
1810 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1813 foreach my $r (@nent) {
1814 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1817 push @nodes, $r->[0];
1819 push @users, $r->[0];
1822 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1826 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1829 foreach my $r (@nent) {
1832 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
1836 foreach my $r (@$dnodes) {
1837 push @rdel,_del_thingy($parent, [$r, 1], $self);
1839 foreach my $r (@$dusers) {
1840 push @rdel,_del_thingy($parent, [$r, 0], $self);
1843 # remember this last PC92C for rebroadcast on demand
1844 $parent->last_PC92C($line);
1846 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1850 foreach my $r (@rdel) {
1853 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1854 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1856 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1857 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1858 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1859 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1860 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1863 # broadcast it if we get here
1864 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1867 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
1868 # might be on two or more nodes at the same time or that there may be more than
1869 # one equal distance neighbour to a node.
1871 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
1872 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
1873 # each and then combined to give a set of dxchans to send the PC9x record down
1875 sub find_pc9x_routes
1878 my $ref = Route::get($to);
1882 if ($ref->isa('Route::User')) {
1883 my $dxchan = DXChannel::get($to);
1884 push @parent, $to if $dxchan;
1885 push @parent, $ref->parents;
1889 foreach my $p (@parent) {
1891 my @routes = Route::findroutes($p);
1892 foreach my $r (@routes) {
1893 $lasthops = $r->[0] unless defined $lasthops;
1894 if ($r->[0] == $lasthops) {
1895 $cand{$r->[1]->call} = $r->[1];
1901 return values %cand;
1911 # $self->{do_pc9x} ||= 1;
1913 my $pcall = $_[1]; # this is now checked earlier
1915 # remember that we are converting PC10->PC93 and self will be $main::me if it
1917 unless ($self->{do_pc9x}) {
1918 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1923 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
1926 my $from = uc $_[4];
1929 my $onode = uc $_[7];
1930 $onode = $pcall if @_ <= 8;
1932 # this is catch loops caused by bad software ...
1933 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
1937 # will we allow it at all?
1940 if (@bad = BadWords::check($text)) {
1941 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
1946 # if this is a 'bad spotter' user then ignore it
1948 $nossid =~ s/-\d+$//;
1949 if ($badspotter->in($nossid)) {
1950 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
1954 # ignore PC93 coming in from outside this node with a target of local
1955 if ($to eq 'LOCAL' && $self != $main::me) {
1956 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
1960 # if it is routeable then then treat it like a talk
1961 my $ref = Route::get($to);
1965 # convert to PC10 or local talks where appropriate
1966 # PC93 capable nodes of the same hop count all get a copy
1967 # if there is a PC10 node then it will get a copy and that
1968 # will be it. Hopefully such a node will not figure highly
1969 # in the route list, unless it is local, 'cos it don't issue PC92s!
1970 # note that both local and PC93s at the same time are possible if the
1971 # user on more than one node.
1972 my @routes = find_pc9x_routes($to);
1974 foreach $dxchan (@routes) {
1975 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1976 if ($dxchan->{do_pc9x}) {
1977 $dxchan->send($line);
1979 $dxchan->talk($from, $to, $via, $text, $onode);
1982 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
1987 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
1989 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
1990 my $wx = $to eq 'WX' ? '1' : '0';
1991 my $local = $via eq 'LOCAL' ? '*' : $via;
1993 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
1994 return if $via eq 'LOCAL';
1995 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
1996 # chat messages really only locally connected users
1997 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2000 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2001 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2004 # if get here then rebroadcast the thing with its Hop count decremented (if
2005 # there is one). If it has a hop count and it decrements to zero then don't
2008 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2019 unless (eph_dup($line)) {
2022 unless (is_callsign($pcall)) {
2023 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
2027 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2028 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2030 unless ($self->{isolate}) {
2031 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me