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 $pc92filterdef = bless ([
60 # tag, sort, field, priv, special parser
69 # incoming talk commands
78 # this is to catch loops caused by bad software ...
79 if (eph_dup($line, $pc10_dupe_age)) {
83 # will we allow it at all?
86 if (@bad = BadWords::check($pc->[3])) {
87 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
92 # is it for me or one of mine?
93 my ($from, $to, $via, $call, $dxchan);
95 if ($pc->[5] gt ' ') {
102 # if this is a 'nodx' node then ignore it
103 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
104 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
108 # if this is a 'bad spotter' user then ignore it
110 $nossid =~ s/-\d+$//;
111 if ($badspotter->in($nossid)) {
112 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
116 # if we are converting announces to talk is it a dup?
118 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
119 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
124 # convert this to a PC93, coming from mycall with origin set and process it as such
125 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
137 # route 'foreign' pc26s
139 if ($pc->[7] ne $main::mycall) {
140 $self->route($pc->[7], $line);
145 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
147 # is the spotted callsign blank? This should really be trapped earlier but it
148 # could break other protocol sentences. Also check for lower case characters.
149 if ($pc->[2] =~ /^\s*$/) {
150 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
153 if ($pc->[2] =~ /[a-z]/) {
154 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
159 # if this is a 'nodx' node then ignore it
160 if ($badnode->in($pc->[7])) {
161 dbg("PCPROT: Bad Node $pc->[7], dropped") if isdbg('chanerr');
165 # if this is a 'bad spotter' or an unknown user then ignore it. BUT if it's got an IP address then allow it through
166 my $nossid = $pc->[6];
167 $nossid =~ s/-\d+$//;
168 if ($badspotter->in($nossid)) {
169 dbg("PCPROT: Bad Spotter $pc->[6], dropped") if isdbg('chanerr');
172 # unless (is_ipaddr($pc->[8]) || DXUser::get_current($pc->[6])) {
173 # dbg("PCPROT: Unknown Spotter $pc->[6], dropped") if isdbg('chanerr');
177 # convert the date to a unix date
178 my $d = cltounix($pc->[3], $pc->[4]);
179 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
180 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
181 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n") if isdbg('chanerr');
186 if ($baddx->in($pc->[2]) || BadWords::check($pc->[2])) {
187 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
192 $pc->[5] =~ s/^\s+//; # take any leading blanks off
193 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
194 if ($pc->[2] =~ /BUST\w*$/) {
195 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
200 if (@bad = BadWords::check($pc->[5])) {
201 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
206 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
207 # global spot filtering on INPUT
208 if ($self->{inspotsfilter}) {
209 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
211 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
216 # this goes after the input filtering, but before the add
217 # so that if it is input filtered, it isn't added to the dup
218 # list. This allows it to come in from a "legitimate" source
219 if (Spot::dup(@spot[0..4,5])) {
220 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
228 # @spot at this point contains:-
229 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
230 # then spotted itu, spotted cq, spotters itu, spotters cq
231 # you should be able to route on any of these
234 # fix up qra locators of known users
235 my $user = DXUser::get_current($spot[4]);
237 my $qra = $user->qra;
238 unless ($qra && is_qra($qra)) {
239 my $lat = $user->lat;
240 my $long = $user->long;
241 if (defined $lat && defined $long) {
242 $user->qra(DXBearing::lltoqra($lat, $long));
247 # send a remote command to a distant cluster if it is visible and there is no
248 # qra locator and we havn't done it for a month.
250 unless ($user->qra) {
252 my $to = $user->homenode;
253 my $last = $user->lastoper || 0;
254 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
255 my $cmd = "forward/opernam $spot[4]";
256 # send the rcmd but we aren't interested in the replies...
257 my $dxchan = $node->dxchan;
258 if ($dxchan && $dxchan->is_clx) {
259 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
261 route(undef, $to, pc34($main::mycall, $to, $cmd));
263 if ($to ne $pc->[7]) {
265 $node = Route::Node::get($to);
267 $dxchan = $node->dxchan;
268 if ($dxchan && $dxchan->is_clx) {
269 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
271 route(undef, $to, pc34($main::mycall, $to, $cmd));
275 $user->lastoper($main::systime);
282 if (defined &Local::spot) {
285 $r = Local::spot($self, @spot);
290 # DON'T be silly and send on PC26s!
291 return if $pcno == 26;
293 # send out the filtered spots
294 send_dx_spot($self, $line, @spot) if @spot;
306 # announce duplicate checking
307 $pc->[3] =~ s/^\s+//; # remove leading blanks
311 if (@bad = BadWords::check($pc->[3])) {
312 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
317 # if this is a 'nodx' node then ignore it
318 if ($badnode->in($pc->[5])) {
319 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
323 # if this is a 'bad spotter' user then ignore it
324 my $nossid = $pc->[1];
325 $nossid =~ s/-\d+$//;
326 if ($badspotter->in($nossid)) {
327 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
331 # ignore PC12s from origins that use PCxx protocol
332 my $oref = Route::get($origin);
333 if ($oref->do_pc9x) {
334 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
340 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
341 $self->send_chat(0, $line, @$pc[1..6]);
342 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
344 # ignore something that looks like a chat line coming in with sysop
345 # flag - this is a kludge...
346 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
347 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
351 # here's a bit of fun, convert incoming ann with a callsign in the first word
352 # or one saying 'to <call>' to a talk if we can route to the recipient
354 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
356 my $ref = Route::get($call);
358 $dxchan = $ref->dxchan;
359 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
366 $self->send_announce(0, $line, @$pc[1..6]);
368 $self->route($pc->[2], $line);
372 if (defined &Local::ann) {
375 $r = Local::ann($self, $line, @$pc[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 $ncall = $pc->[1];
410 my $newline = "PC16^";
412 # dos I want users from this channel?
413 unless ($self->user->wantpc16) {
414 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
419 if ($ncall eq $main::mycall) {
420 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
425 $h = 1 if DXChannel::get($ncall);
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 < $#$pc; $i++) {
466 my ($call, $conf, $here) = $pc->[$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';
525 my $ncall = $pc->[2];
526 my $ucall = $pc->[1];
528 eph_del_regex("^PC16\\^$ncall.*$ucall");
530 # do I want users from this channel?
531 unless ($self->user->wantpc16) {
532 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
536 if ($ncall eq $main::mycall) {
537 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
541 # isolate now means only accept stuff from this call only
542 if ($self->{isolate} && $ncall ne $self->{call}) {
543 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
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;
602 $self->state('init');
604 my $parent = Route::Node::get($self->{call});
606 # record the type and version offered
607 if (my ($version) = $pc->[1] =~ /DXSpider Version: (\d+\.\d+)/) {
608 $self->{version} = 53 + $version;
609 $self->user->version(53 + $version);
610 $parent->version(0 + $version);
611 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
612 $self->{build} = 0 + $build;
613 $self->user->build(0 + $build);
614 $parent->build(0 + $build);
615 dbg("DXSpider version $version build $build");
616 unless ($self->is_spider) {
617 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
618 $self->user->sort('S');
622 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
624 dbg("Unknown software");
625 $self->version(50.0);
626 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
627 $self->user->version($self->version);
630 if ($pc->[1] =~ /\bpc9x/) {
631 if ($self->{isolate}) {
632 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
633 } elsif (!$self->user->wantpc9x) {
634 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
636 $self->{do_pc9x} = 1;
637 dbg("Do px9x set on $self->{call}");
641 # first clear out any nodes on this dxchannel
642 my @rout = $parent->del_nodes;
643 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
644 $self->send_local_config();
652 # add this station to the user database, if required (don't remove SSID from nodes)
653 my $user = DXUser::get_current($call);
655 $user = DXUser->new($call);
656 $user->priv(1); # I have relented and defaulted nodes
658 $user->homenode($call);
665 # incoming cluster list
675 my $newline = "PC19^";
678 my (@rout, @pc92out);
680 # first get the INTERFACE node
681 my $parent = Route::Node::get($self->{call});
683 dbg("PCPROT: my parent $self->{call} has disappeared");
692 # We are making a major change from now on. We are only going to accept
693 # PC19s from directly connected nodes. This means that we are probably
694 # going to throw away most of the data that we are being sent.
696 # The justification for this is that most of it is wrong or out of date
699 # From now on we are only going to believe PC92 data and locally connected
702 for ($i = 1; $i < $#$pc-1; $i += 4) {
703 my $here = $pc->[$i];
704 my $call = uc $pc->[$i+1];
705 my $conf = $pc->[$i+2];
706 my $ver = $pc->[$i+3];
707 next unless defined $here && defined $conf && is_callsign($call);
709 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
711 # check for sane parameters
712 # $ver = 5000 if $ver eq '0000';
713 next unless $ver && $ver =~ /^\d+$/;
714 next if $ver < 5000; # only works with version 5 software
715 next if length $call < 3; # min 3 letter callsigns
716 next if $call eq $main::mycall || $call eq $main::myalias;
718 # check that this PC19 isn't trying to alter the wrong dxchan
720 my $dxchan = DXChannel::get($call);
722 if ($dxchan == $self) {
725 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
730 # isolate now means only accept stuff from this call only
731 if ($self->{isolate} && $call ne $self->{call}) {
732 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
736 my $user = check_add_node($call);
738 # if (eph_dup($genline)) {
739 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
745 if ($parent->via_pc92) {
746 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
751 my $r = Route::Node::get($call);
752 my $flags = Route::here($here)|Route::conf($conf);
754 # modify the routing table if it is in it, otherwise store it in the pc19list for now
757 if ($call ne $parent->call) {
758 if ($self->in_filter_route($r)) {
759 $ar = $parent->add($call, $ver, $flags);
760 # push @rout, $ar if $ar;
765 if ($r->version ne $ver || $r->flags != $flags) {
771 if ($call eq $self->{call} || $user->wantroutepc19) {
772 my $new = Route->new($call); # throw away
773 if ($self->in_filter_route($new)) {
774 my $ar = $parent->add($call, $ver, $flags);
775 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
776 push @rout, $ar if $ar;
777 push @pc92out, $r if $h;
784 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
785 my $mref = DXMsg::get_busy($call);
786 $mref->stop_msg($call) if $mref;
788 $user->lastin($main::systime) unless DXChannel::get($call);
792 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
793 # but remember there will only be one (pair) these because any extras will be
796 # $self->route_pc21($self->{call}, $line, @rout);
797 $self->route_pc19($self->{call}, $line, @rout);
799 if (@pc92out && !$pc92_slug_changes) {
800 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
804 # send local configuration
813 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
814 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
815 $self->{do_pc9x} = 0;
817 $self->send_local_config;
819 $self->state('normal');
820 $self->{lastping} = 0;
821 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
824 # delete a cluster from the list
826 # This should never occur for directly connected nodes.
836 my $call = uc $pc->[1];
838 eph_del_regex("^PC1[679].*$call");
840 # if I get a PC21 from the same callsign as self then ignore it
841 if ($call eq $self->{call}) {
842 dbg("PCPROT: self referencing PC21 from $self->{call}");
846 # for the above reason and also because of the check for PC21s coming
847 # in for self->call from outside being ignored further down
848 # we don't need any isolation code here, because we will never
849 # act on a PC21 with self->call in it.
851 my $parent = Route::Node::get($self->{call});
853 dbg("PCPROT: my parent $self->{call} has disappeared");
860 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
861 my $node = Route::Node::get($call);
864 if ($node->via_pc92) {
865 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
869 my $dxchan = DXChannel::get($call);
870 if ($dxchan && $dxchan != $self) {
871 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
876 return unless $self->in_filter_route($node);
878 # routing objects, force a PC21 if it is local
879 push @rout, $node->del($parent);
880 push @rout, $call if $dxchan && @rout == 0;
883 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
887 if (eph_dup($line)) {
892 $self->route_pc21($origin, $line, @rout);
893 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
906 if ($self->{do_pc9x}) {
907 if ($self->{state} ne 'init92') {
908 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
909 $self->{do_pc9x} = 0;
912 $self->{lastping} = 0;
913 $self->state('normal');
914 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
926 # route foreign' pc27s
928 if ($pc->[8] ne $main::mycall) {
929 $self->route($pc->[8], $line);
936 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
937 my $sfi = unpad($pc->[3]);
938 my $k = unpad($pc->[4]);
939 my $i = unpad($pc->[5]);
940 my ($r) = $pc->[6] =~ /R=(\d+)/;
942 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
943 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
947 # global wwv filtering on INPUT
948 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
949 if ($self->{inwwvfilter}) {
950 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
952 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
956 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
957 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
958 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
962 # note this only takes the first one it gets
963 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
965 if (defined &Local::wwv) {
968 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
973 # DON'T be silly and send on PC27s!
974 return if $pcno == 27;
976 # broadcast to the eager world
977 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
989 my $call = uc $pc->[1];
991 $nref = Route::Node::get($call);
992 $uref = Route::User::get($call);
993 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
995 if (eph_dup($line)) {
999 $nref->here($pc->[2]) if $nref;
1000 $uref->here($pc->[2]) if $uref;
1001 my $ref = $nref || $uref;
1002 return unless $self->in_filter_route($ref);
1004 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1016 if ($pc->[1] ne $main::mycall) {
1017 $self->route($pc->[1], $line);
1020 if ($pc->[2] eq $main::mycall) {
1021 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1025 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1029 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1032 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1038 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1041 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1046 sub handle_26 {goto &handle_11}
1047 sub handle_27 {goto &handle_23}
1049 # mail/file handling
1058 if ($pc->[1] eq $main::mycall) {
1060 my $sub = "DXMsg::handle_$pcno";
1063 $self->route($pc->[1], $line) unless $self->is_clx;
1067 sub handle_29 {goto &handle_28}
1068 sub handle_30 {goto &handle_28}
1069 sub handle_31 {goto &handle_28}
1070 sub handle_32 {goto &handle_28}
1071 sub handle_33 {goto &handle_28}
1081 if (eph_dup($line, $eph_pc34_restime)) {
1084 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1088 # remote command replies
1097 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1098 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1101 sub handle_36 {goto &handle_34}
1112 if ($pc->[1] eq $main::mycall) {
1114 my $sub = "DXDb::handle_$pcno";
1117 $self->route($pc->[1], $line) unless $self->is_clx;
1121 # node connected list from neighbour
1131 # incoming disconnect
1140 if ($pc->[1] eq $self->{call}) {
1141 $self->disconnect(1);
1143 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1147 sub handle_40 {goto &handle_28}
1158 my $call = $pc->[1];
1159 my $sort = $pc->[2];
1162 my $l = "PC41^$call^$sort";
1163 if (eph_dup($l, $eph_info_restime)) {
1167 # input filter if required
1168 # my $ref = Route::get($call) || Route->new($call);
1169 # return unless $self->in_filter_route($ref);
1171 if ($val eq $sort || $val =~ /^\s*$/) {
1172 dbg('PCPROT: invalid value') if isdbg('chanerr');
1176 if ($call eq $main::mycall || $call eq $main::myalias) {
1177 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1180 my $chan = DXChannel::get($call);
1182 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1186 # add this station to the user database, if required
1187 my $user = DXUser::get_current($call);
1188 $user = DXUser->new($call) unless $user;
1191 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1192 dbg("PCPROT: invalid name") if isdbg('chanerr');
1196 } elsif ($sort == 2) {
1198 } elsif ($sort == 3) {
1199 if (is_latlong($val)) {
1200 my ($lat, $long) = DXBearing::stoll($val);
1201 $user->lat($lat) if $lat;
1202 $user->long($long) if $long;
1203 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1205 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1208 } elsif ($sort == 4) {
1209 $user->homenode($val);
1210 } elsif ($sort == 5) {
1211 if (is_qra(uc $val)) {
1212 my ($lat, $long) = DXBearing::qratoll(uc $val);
1213 $user->lat($lat) if $lat && !$user->lat;
1214 $user->long($long) if $long && !$user->long;
1215 $user->qra(uc $val);
1217 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1221 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1224 unless ($self->{isolate}) {
1225 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1228 # perhaps this IS what we want after all
1229 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1232 sub handle_42 {goto &handle_28}
1236 sub handle_44 {goto &handle_37}
1237 sub handle_45 {goto &handle_37}
1238 sub handle_46 {goto &handle_37}
1239 sub handle_47 {goto &handle_37}
1240 sub handle_48 {goto &handle_37}
1242 # message and database
1251 if (eph_dup($line)) {
1255 if ($pc->[1] eq $main::mycall) {
1256 DXMsg::handle_49($self, @$pc);
1258 $self->route($pc->[1], $line) unless $self->is_clx;
1262 # keep alive/user list
1271 return if (eph_dup($line));
1273 my $call = $pc->[1];
1275 my $node = Route::Node::get($call);
1277 return unless $node->call eq $self->{call};
1278 $node->usercount($pc->[2]) unless $node->users;
1280 $node->PC92C_dxchan($self->call, $pc->[-1]);
1282 # input filter if required
1283 # return unless $self->in_filter_route($node);
1285 unless ($self->{isolate}) {
1286 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1288 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1292 # incoming ping requests/answers
1302 my $from = $pc->[2];
1303 my $flag = $pc->[3];
1305 if ($to eq $main::myalias) {
1306 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1311 if ($to eq $main::mycall) {
1313 $self->send(pc51($from, $to, '0'));
1315 DXXml::Ping::handle_ping_reply($self, $from);
1318 if (eph_dup($line)) {
1321 # route down an appropriate thingy
1322 $self->route($to, $line);
1326 sub handle_61 { goto &handle_11; }
1328 # dunno but route it
1337 my $call = $pc->[1];
1338 if ($call ne $main::mycall) {
1339 $self->route($call, $line);
1352 my $call = $pc->[1];
1355 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1356 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1357 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1360 $pc = [ map { unpad($_) } @$pc ];
1362 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1366 my $wcy = WCY::update($d, @$pc[2..12]);
1368 if (defined &Local::wcy) {
1371 $rep = Local::wcy($self, @$pc[1..12]);
1376 # broadcast to the eager world
1377 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1380 # remote commands (incoming)
1389 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1392 # remote command replies
1401 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1404 # decode a pc92 call: flag call : version : build
1405 sub _decode_pc92_call
1408 my @part = split /:/, $icall;
1409 my ($flag, $call) = unpack "A A*", $part[0];
1410 unless (defined $flag && $flag ge '0' && $flag le '7') {
1411 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1414 unless ($call && is_callsign($call)) {
1415 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1418 my $is_node = $flag & 4;
1419 my $is_extnode = $flag & 2;
1420 my $here = $flag & 1;
1422 $ip ||= $part[1] if $part[1] && ($part[1] =~ /^(?:\d+\.)+/ || $part[1] =~ /^(?:(?:[abcdef\d]+)?,)+/);
1423 $ip =~ s/,/:/g if $ip;
1424 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2], $ip);
1427 # decode a pc92 call: flag call : version : build
1428 sub _encode_pc92_call
1432 # plain call or value
1433 return $ref unless ref $ref;
1435 my $ext = shift || 0;
1437 my $call = $ref->call;
1439 $flag |= $ref->here ? 1 : 0;
1440 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1442 my $dxchan = DXChannel::get($call);
1443 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1444 if (($ext & 1) && $ref->version) {
1445 my $version = $ref->version || 1.0;
1446 $version = $version * 100 + 5300 if $version < 50;
1447 $extra .= ":" . $version;
1450 if (($ext & 2) && $ref->ip) {
1453 $extra .= ':' . $ip;
1455 return "$flag$call$extra";
1468 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1472 my $ncall = $parent->call;
1474 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1475 @rout = $parent->add($call, $version, Route::here($here), $ip);
1476 my $r = Route::Node::get($call);
1477 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1480 Log('DXProt', "PC92A $call -> $ip on $ncall");
1483 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1484 @rout = $parent->add_user($call, Route::here($here), $ip);
1485 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1486 my $r = Route::User::get($call);
1489 Log('DXProt', "PC92A $call -> $ip on $ncall");
1492 if ($pc92_slug_changes && $parent == $main::routeroot) {
1493 $things_add{$call} = Route::get($call);
1494 delete $things_del{$call};
1505 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1510 $ref = Route::Node::get($call);
1511 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1512 @rout = $ref->del($parent) if $ref;
1514 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1515 $ref = Route::User::get($call);
1517 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1518 @rout = $parent->del_user($ref);
1521 if ($pc92_slug_changes && $parent == $main::routeroot) {
1522 $things_del{$call} = $ref unless exists $things_add{$call};
1523 delete $things_add{$call};
1529 # this will only happen if we are slugging changes and
1530 # there are some changes to be sent, it will create an add or a delete
1532 sub gen_pc92_changes
1534 my @add = values %things_add;
1535 my @del = values %things_del;
1536 return (\@add, \@del);
1539 sub clear_pc92_changes
1541 %things_add = %things_del = ();
1542 $last_pc92_slug = $main::systime;
1551 return $_last_pc9x_id;
1556 if (!$_last_time || $_last_time != $main::systime) {
1557 $_last_time = $main::systime;
1559 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1562 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1573 # check that the time is between 0 >= $t < 86400
1574 unless ($t >= 0 && $t < 86400) {
1575 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1579 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1580 my $now = $main::systime - $main::systime_daystart ;
1581 my $diff = abs($now - $t);
1582 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1583 my $c = ref $call ? $call->call : $call;
1584 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1588 my $parent = ref $call ? $call : Route::Node::get($call);
1590 # we only do this for external calls whose routing table
1591 # record come and go. The reference for mycall is permanent
1592 # and not that frequently used, it also never times out, so
1593 # the id on it is completely unreliable. Besides, only commands
1594 # originating on this box will go through this code...
1595 if ($parent->call ne $main::mycall) {
1596 my $lastid = $parent->lastid;
1597 if (defined $lastid) {
1599 # note that this is where we determine whether this pc9x has come in yesterday
1600 # but is still greater (modulo 86400) than the lastid or is simply an old
1601 # duplicate sentence. To determine this we need to do some module 86400
1602 # arithmetic. High numbers mean that this is an old duplicate sentence,
1603 # low numbers that it is a new sentence.
1605 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1606 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1607 # 86378 respectively in the calculation below).
1609 if ($t+86400-$lastid > $pc9x_past_age) {
1610 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1613 } elsif ($t == $lastid) {
1614 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1617 # check that if we have a low number in lastid that yesterday's numbers
1618 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1619 if ($lastid+86400-$t < $pc9x_past_age) {
1620 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1627 $parent = Route::Node->new($call);
1629 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1632 if (isdbg('pc92dedupe')) {
1633 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1634 my $val = $parent->{lastid};
1635 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1636 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1638 $parent->lastid($t);
1643 sub pc92_handle_first_slot
1650 my $oparent = $parent;
1654 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1655 if ($call && $is_node) {
1656 if ($call eq $main::mycall) {
1657 dbg("PCPROT: $call looped back onto \$main::mycall ($main::mycall), ignored") if isdbg('chan');
1660 if ($call eq $main::myalias) {
1661 dbg("PCPROT: $call looped back onto \$main::myalias ($main::myalias), ignored") if isdbg('chan');
1664 # this is only accepted from my "self".
1665 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1666 # locally connected. Local nodes always take precedence. But we remember the lastid
1667 # to try to reduce the number of dupe PC92s for this external node.
1668 if (DXChannel::get($call) && $call ne $self->{call}) {
1669 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1670 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1674 # reparent to external node (note that we must have received a 'C' or 'A' record
1675 # from the true parent node for this external before we get one for the this node
1676 unless ($parent = Route::Node::get($call)) {
1677 if ($is_extnode && $oparent) {
1678 @radd = _add_thingy($oparent, $slot, $self, $hops);
1681 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1685 $parent = check_pc9x_t($call, $t, 92) || return;
1686 $parent->via_pc92(1);
1687 $parent->PC92C_dxchan($self->{call}, $hops);
1690 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1693 $parent->here(Route::here($here));
1694 $parent->version($version || $pc19_version) if $version;
1695 $parent->build($build) if $build;
1696 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1697 return ($parent, @radd);
1700 # DXSpider routing entries
1711 my $pcall = $pc->[1];
1713 my $sort = $pc->[3];
1714 my $hops = $pc->[-1];
1716 # this catches loops of A/Ds
1717 # if (eph_dup($line, $pc9x_dupe_age)) {
1721 if ($pcall eq $main::mycall) {
1722 dbg("PCPROT: looped back, ignored") if isdbg('chan');
1726 if ($pcall eq $main::myalias) {
1727 dbg("PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored") if isdbg('chan');
1731 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1732 if ($self->{isolate}) {
1733 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
1735 } elsif (!$self->user->wantpc9x) {
1736 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
1739 $self->state('init92');
1740 $self->{do_pc9x} = 1;
1741 dbg("DXPROT: Do pc9x set on $pcall");
1744 unless ($self->{do_pc9x}) {
1745 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1749 # don't create routing entries for D records that don't already exist
1750 # this is what causes all those PC92 loops!
1751 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
1752 my $oparent = $parent;
1754 $parent->do_pc9x(1);
1755 $parent->via_pc92(1);
1757 if ($sort eq 'F' || $sort eq 'R') {
1759 # this is the route finding section
1760 # here is where the consequences of the 'find' command
1763 my $from = $pc->[4];
1764 my $target = $pc->[5];
1770 if ($ref = DXChannel::get($target)) {
1771 $flag = 1; # we are directly connected
1773 $ref = Route::get($target);
1774 $dxchan = $ref->dxchan;
1777 if ($ref && $flag && $dxchan) {
1778 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1781 } elsif ($sort eq 'R') {
1782 if (my $dxchan = DXChannel::get($from)) {
1783 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
1785 my $ref = Route::get($from);
1787 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1789 $_->send($line) for @dxchan;
1791 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1794 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1800 } elsif ($sort eq 'K') {
1801 $pc92Kin += length $line;
1803 # remember the last channel we arrived on
1804 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1806 my @ent = _decode_pc92_call($pc->[4]);
1811 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
1812 return unless $parent; # dupe
1814 push @radd, $add if $add;
1816 $parent->version($ent[4]) if $ent[4];
1817 $parent->build($ent[5]) if $ent[5];
1819 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1821 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1823 $pc92Ain += length $line if $sort eq 'A';
1824 $pc92Cin += length $line if $sort eq 'C';
1825 $pc92Din += length $line if $sort eq 'D';
1827 # remember the last channel we arrived on
1828 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1830 # this is the main route section
1831 # here is where all the routes are created and destroyed
1833 # cope with missing duplicate node calls in the first slot
1834 my $me = $pc->[4] || '';
1835 $me ||= _encode_pc92_call($parent) unless $me ;
1837 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
1841 # look at the first one which will always be a node of some sort
1842 # except in the case of 'A' or 'D' in which the $pcall is used
1843 # otherwise use the node call and update any information
1844 # that needs to be done.
1847 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
1848 return unless $parent; # dupe
1851 push @radd, $add if $add;
1854 # do a pass through removing any references to either mycall
1858 next unless $_ && @$_;
1859 if ($_->[0] eq $main::mycall) {
1860 dbg("PCPROT: $_->[0] refers to me, ignored") if isdbg('chanerr');
1868 push @radd, _add_thingy($parent, $_, $self, $hops);
1870 } elsif ($sort eq 'D') {
1872 push @rdel, _del_thingy($parent, $_, $self);
1874 } elsif ($sort eq 'C') {
1875 my (@nodes, @users);
1877 # we reset obscounts on config records as well as K records
1879 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1882 foreach my $r (@nent) {
1883 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1886 push @nodes, $r->[0];
1888 push @users, $r->[0];
1891 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1895 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1898 foreach my $r (@nent) {
1901 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
1905 foreach my $r (@$dnodes) {
1906 push @rdel,_del_thingy($parent, [$r, 1], $self);
1908 foreach my $r (@$dusers) {
1909 push @rdel,_del_thingy($parent, [$r, 0], $self);
1912 # remember this last PC92C for rebroadcast on demand
1913 $parent->last_PC92C($line);
1915 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1919 foreach my $r (@rdel) {
1922 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1923 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1925 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1926 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1927 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1928 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1929 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1932 # broadcast it if we get here
1933 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1936 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
1937 # might be on two or more nodes at the same time or that there may be more than
1938 # one equal distance neighbour to a node.
1940 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
1941 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
1942 # each and then combined to give a set of dxchans to send the PC9x record down
1944 sub find_pc9x_routes
1947 my $ref = Route::get($to);
1951 if ($ref->isa('Route::User')) {
1952 my $dxchan = DXChannel::get($to);
1953 push @parent, $to if $dxchan;
1954 push @parent, $ref->parents;
1958 foreach my $p (@parent) {
1960 my @routes = Route::findroutes($p);
1961 foreach my $r (@routes) {
1962 $lasthops = $r->[0] unless defined $lasthops;
1963 if ($r->[0] == $lasthops) {
1964 $cand{$r->[1]->call} = $r->[1];
1970 return values %cand;
1981 # $self->{do_pc9x} ||= 1;
1983 my $pcall = $pc->[1]; # this is now checked earlier
1985 # remember that we are converting PC10->PC93 and self will be $main::me if it
1987 unless ($self->{do_pc9x}) {
1988 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1993 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
1995 my $to = uc $pc->[3];
1996 my $from = uc $pc->[4];
1997 my $via = uc $pc->[5];
1998 my $text = $pc->[6];
1999 my $onode = uc $pc->[7];
2000 $onode = $pcall if @$pc <= 8;
2002 # this is catch loops caused by bad software ...
2003 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2007 # will we allow it at all?
2010 if (@bad = BadWords::check($text)) {
2011 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
2016 # if this is a 'bad spotter' user then ignore it
2018 $nossid =~ s/-\d+$//;
2019 if ($badspotter->in($nossid)) {
2020 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
2024 # ignore PC93 coming in from outside this node with a target of local
2025 if ($to eq 'LOCAL' && $self != $main::me) {
2026 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2030 # if it is routeable then then treat it like a talk
2031 my $ref = Route::get($to);
2035 # convert to PC10 or local talks where appropriate
2036 # PC93 capable nodes of the same hop count all get a copy
2037 # if there is a PC10 node then it will get a copy and that
2038 # will be it. Hopefully such a node will not figure highly
2039 # in the route list, unless it is local, 'cos it don't issue PC92s!
2040 # note that both local and PC93s at the same time are possible if the
2041 # user on more than one node.
2042 my @routes = find_pc9x_routes($to);
2044 foreach $dxchan (@routes) {
2045 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2046 if ($dxchan->{do_pc9x}) {
2047 $dxchan->send($line);
2049 $dxchan->talk($from, $to, $via, $text, $onode);
2052 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2057 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2059 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2060 my $wx = $to eq 'WX' ? '1' : '0';
2061 my $local = $via eq 'LOCAL' ? '*' : $via;
2063 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2064 return if $via eq 'LOCAL';
2065 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2066 # chat messages really only locally connected users
2067 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2070 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2071 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2074 # if get here then rebroadcast the thing with its Hop count decremented (if
2075 # there is one). If it has a hop count and it decrements to zero then don't
2078 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2090 unless (eph_dup($line)) {
2092 my $pcall = $pc->[1];
2093 unless (is_callsign($pcall)) {
2094 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2098 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2099 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2101 unless ($self->{isolate}) {
2102 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me