3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2006 Dirk Koopman G1TLH
41 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
42 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
43 $pingint $obscount %pc19list $chatdupeage $chatimportfn
44 $investigation_int $pc19_version $myprot_version
45 %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
46 $allowzero $decode_dk0wcy $send_opernam @checklist
50 # incoming talk commands
59 return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
61 # will we allow it at all?
64 if (@bad = BadWords::check($_[3])) {
65 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
70 # is it for me or one of mine?
71 my ($from, $to, $via, $call, $dxchan);
80 # if this is a 'nodx' node then ignore it
81 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
82 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
86 # if this is a 'bad spotter' user then ignore it
89 if ($badspotter->in($nossid)) {
90 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
94 # if we are converting announces to talk is it a dup?
96 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
97 dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
102 # remember a route to this node and also the node on which this user is
103 RouteDB::update($_[6], $self->{call});
104 # RouteDB::update($to, $_[6]);
106 # it is here and logged on
107 $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall;
108 $dxchan = DXChannel::get($to) unless $dxchan;
109 if ($dxchan && $dxchan->is_user) {
111 $dxchan->talk($from, $to, $via, $_[3]);
115 # is it elsewhere, visible on the cluster via the to address?
116 # note: this discards the via unless the to address is on
119 if ($ref = Route::get($to)) {
120 $vref = Route::Node::get($via) if $via;
121 $vref = undef unless $vref && grep $to eq $_, $vref->users;
122 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
126 # can we see an interface to send it down?
128 # not visible here, send a message of condolence
130 $ref = Route::get($from);
131 $vref = $ref = Route::Node::get($_[6]) unless $ref;
133 $dxchan = $ref->dxchan;
134 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
146 # route 'foreign' pc26s
148 if ($_[7] ne $main::mycall) {
149 $self->route($_[7], $line);
155 # return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
157 # is the spotted callsign blank? This should really be trapped earlier but it
158 # could break other protocol sentences. Also check for lower case characters.
159 if ($_[2] =~ /^\s*$/) {
160 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
163 if ($_[2] =~ /[a-z]/) {
164 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
169 # if this is a 'nodx' node then ignore it
170 if ($badnode->in($_[7])) {
171 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
175 # if this is a 'bad spotter' user then ignore it
177 $nossid =~ s/-\d+$//;
178 if ($badspotter->in($nossid)) {
179 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
183 # convert the date to a unix date
184 my $d = cltounix($_[3], $_[4]);
185 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
186 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
187 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
192 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
193 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
198 $_[5] =~ s/^\s+//; # take any leading blanks off
199 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
200 if ($_[2] =~ /BUST\w*$/) {
201 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
206 if (@bad = BadWords::check($_[5])) {
207 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
213 # RouteDB::update($_[7], $self->{call});
214 # RouteDB::update($_[6], $_[7]);
216 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]);
217 # global spot filtering on INPUT
218 if ($self->{inspotsfilter}) {
219 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
221 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
226 # this goes after the input filtering, but before the add
227 # so that if it is input filtered, it isn't added to the dup
228 # list. This allows it to come in from a "legitimate" source
229 if (Spot::dup(@spot[0..4,5])) {
230 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
238 # @spot at this point contains:-
239 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
240 # then spotted itu, spotted cq, spotters itu, spotters cq
241 # you should be able to route on any of these
244 # fix up qra locators of known users
245 my $user = DXUser->get_current($spot[4]);
247 my $qra = $user->qra;
248 unless ($qra && is_qra($qra)) {
249 my $lat = $user->lat;
250 my $long = $user->long;
251 if (defined $lat && defined $long) {
252 $user->qra(DXBearing::lltoqra($lat, $long));
257 # send a remote command to a distant cluster if it is visible and there is no
258 # qra locator and we havn't done it for a month.
260 unless ($user->qra) {
262 my $to = $user->homenode;
263 my $last = $user->lastoper || 0;
264 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
265 my $cmd = "forward/opernam $spot[4]";
266 # send the rcmd but we aren't interested in the replies...
267 my $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 $node = Route::Node::get($to);
277 $dxchan = $node->dxchan;
278 if ($dxchan && $dxchan->is_clx) {
279 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
281 route(undef, $to, pc34($main::mycall, $to, $cmd));
285 $user->lastoper($main::systime);
294 $r = Local::spot($self, @spot);
296 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
299 # DON'T be silly and send on PC26s!
300 return if $pcno == 26;
302 # send out the filtered spots
303 send_dx_spot($self, $line, @spot) if @spot;
314 # return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
316 # announce duplicate checking
317 $_[3] =~ s/^\s+//; # remove leading blanks
321 if (@bad = BadWords::check($_[3])) {
322 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
327 # if this is a 'nodx' node then ignore it
328 if ($badnode->in($_[5])) {
329 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
333 # if this is a 'bad spotter' user then ignore it
335 $nossid =~ s/-\d+$//;
336 if ($badspotter->in($nossid)) {
337 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
344 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
345 $self->send_chat($line, @_[1..6]);
346 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
349 # RouteDB::update($_[5], $self->{call});
350 # RouteDB::update($_[1], $_[5]);
352 # ignore something that looks like a chat line coming in with sysop
353 # flag - this is a kludge...
354 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
355 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
359 # here's a bit of fun, convert incoming ann with a callsign in the first word
360 # or one saying 'to <call>' to a talk if we can route to the recipient
362 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
364 my $ref = Route::get($call);
366 $dxchan = $ref->dxchan;
367 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
374 $self->send_announce($line, @_[1..6]);
376 $self->route($_[2], $line);
387 if (eph_dup($line, $eph_pc15_restime)) {
388 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
390 unless ($self->{isolate}) {
391 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
407 my $newline = "PC16^";
409 # dos I want users from this channel?
410 unless ($self->user->wantpc16) {
411 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
415 if ($ncall eq $main::mycall) {
416 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
421 $h = 1 if DXChannel::get($ncall);
422 RouteDB::update($ncall, $self->{call}, $h);
424 if (eph_dup($line)) {
425 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
430 dbg("PCPROT: non-local PC16, ignored") if isdbg('chanerr');
434 my $parent = Route::Node::get($ncall);
437 $dxchan = $parent->dxchan;
438 if ($dxchan && $dxchan ne $self) {
439 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
443 # input filter if required
444 return unless $self->in_filter_route($parent);
449 for ($i = 2; $i < $#_; $i++) {
450 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
451 next unless $call && $conf && defined $here && is_callsign($call);
452 next if $call eq $main::mycall;
454 eph_del_regex("^PC17\\^$call\\^$ncall");
456 $conf = $conf eq '*';
458 # reject this if we think it is a node already
459 my $r = Route::Node::get($call);
460 my $u = DXUser->get_current($call) unless $r;
461 if ($r || ($u && $u->is_node)) {
462 dbg("PCPROT: $call is a node") if isdbg('chanerr');
466 $r = Route::User::get($call);
467 my $flags = Route::here($here)|Route::conf($conf);
470 my $au = $r->addparent($parent);
471 if ($r->flags != $flags) {
475 push @rout, $r if $au;
477 push @rout, $parent->add_user($call, $flags);
480 # send info to all logged in thingies
481 $self->tell_login('loginu', "$ncall: $call") if DXUser->get_current($ncall)->is_local_node;
482 $self->tell_buddies('loginb', $call, $ncall);
484 # add this station to the user database, if required
485 # $call =~ s/-\d+$//o; # remove ssid for users
486 my $user = DXUser->get_current($call);
487 $user = DXUser->new($call) if !$user;
488 $user->homenode($parent->call) if !$user->homenode;
489 $user->node($parent->call);
490 $user->lastin($main::systime) unless DXChannel::get($call);
494 $self->route_pc16($origin, $line, $parent, @rout);
495 $self->route_pc92a($main::mycall, undef, $parent, @rout);
510 eph_del_regex("^PC16\\^$ncall.*$ucall");
512 # do I want users from this channel?
513 unless ($self->user->wantpc16) {
514 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
517 if ($ncall eq $main::mycall) {
518 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
522 RouteDB::delete($ncall, $self->{call});
524 unless ($ncall eq $self->{call}) {
525 dbg("PCPROT: PC17 from non-local $ncall, ignored") if isdbg('chanerr');
529 my $uref = Route::User::get($ucall);
531 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
533 my $parent = Route::Node::get($ncall);
535 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
538 $dxchan = $parent->dxchan if $parent;
539 if ($dxchan && $dxchan ne $self) {
540 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
544 # input filter if required and then remove user if present
546 # return unless $self->in_filter_route($parent);
547 $parent->del_user($uref) if $uref;
549 $parent = Route->new($ncall); # throw away
552 # send info to all logged in thingies
553 $self->tell_login('logoutu', "$ncall: $ucall") if DXUser->get_current($ncall)->is_local_node;
554 $self->tell_buddies('logoutb', $ucall, $ncall);
556 if (eph_dup($line)) {
557 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
561 $uref = Route->new($ucall) unless $uref; # throw away
562 $self->route_pc17($origin, $line, $parent, $uref);
563 $self->route_pc92d($main::mycall, undef, $parent, $uref);
573 $self->state('init');
575 # record the type and version offered
576 if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
577 $self->version(53 + $1);
578 $self->user->version(53 + $1);
579 $self->build(0 + $2);
580 $self->user->build(0 + $2);
581 unless ($self->is_spider) {
582 $self->user->sort('S');
586 $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml\b/;
587 $self->{do_pc92}++ if $_[1] =~ /\bpc92\b/;
589 $self->version(50.0);
590 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
591 $self->user->version($self->version);
594 # first clear out any nodes on this dxchannel
595 my $parent = Route::Node::get($self->{call});
596 my @rout = $parent->del_nodes;
597 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
598 $self->send_local_config();
606 # add this station to the user database, if required (don't remove SSID from nodes)
607 my $user = DXUser->get_current($call);
609 $user = DXUser->new($call);
610 $user->priv(1); # I have relented and defaulted nodes
612 $user->homenode($call);
615 $user->sort('A') unless $user->is_node;
619 # incoming cluster list
628 my $newline = "PC19^";
633 # first get the INTERFACE node
634 my $parent = Route::Node::get($self->{call});
636 dbg("DXPROT: my parent $self->{call} has disappeared");
643 # We are making a major change from now on. We are only going to accept
644 # PC19s from directly connected nodes. This means that we are probably
645 # going to throw away most of the data that we are being sent.
647 # The justification for this is that most of it is wrong or out of date
650 # From now on we are only going to believe PC92 data.
652 for ($i = 1; $i < $#_-1; $i += 4) {
654 my $call = uc $_[$i+1];
657 next unless defined $here && defined $conf && is_callsign($call);
659 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
661 # check for sane parameters
662 # $ver = 5000 if $ver eq '0000';
663 next unless $ver && $ver =~ /^\d+$/;
664 next if $ver < 5000; # only works with version 5 software
665 next if length $call < 3; # min 3 letter callsigns
666 next if $call eq $main::mycall;
668 # check that this PC19 isn't trying to alter the wrong dxchan
669 my $dxchan = DXChannel::get($call);
670 if ($dxchan && $dxchan != $self) {
671 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
675 my $user = check_add_node($call);
677 # if (eph_dup($genline)) {
678 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
682 RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef);
685 dbg("PCPROT: PC19 not directly connected, ignored") if isdbg('chanerr');
689 my $r = Route::Node::get($call);
690 my $flags = Route::here($here)|Route::conf($conf);
692 # modify the routing table if it is in it, otherwise store it in the pc19list for now
695 if ($call ne $parent->call) {
696 if ($self->in_filter_route($r)) {
697 $ar = $parent->add($call, $ver, $flags);
698 # push @rout, $ar if $ar;
703 if ($r->version ne $ver || $r->flags != $flags) {
709 if ($call eq $self->{call} || $user->wantroutepc19) {
710 my $new = Route->new($call); # throw away
711 if ($self->in_filter_route($new)) {
712 my $ar = $parent->add($call, $ver, $flags);
713 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
714 push @rout, $ar if $ar;
721 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
722 my $mref = DXMsg::get_busy($call);
723 $mref->stop_msg($call) if $mref;
725 $user->lastin($main::systime) unless DXChannel::get($call);
729 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
730 # but remember there will only be one (pair) these because any extras will be
733 $self->route_pc21($self->{call}, $line, @rout);
734 $self->route_pc19($self->{call}, $line, @rout);
735 $self->route_pc92a($main::mycall, $line, $main::routeroot, @rout);
739 # send local configuration
746 $self->send_local_config();
748 $self->state('normal');
749 $self->{lastping} = 0;
752 # delete a cluster from the list
754 # This should never occur for directly connected nodes.
764 eph_del_regex("^PC1[679].*$call");
766 # if I get a PC21 from the same callsign as self then ignore it
767 if ($call eq $self->call) {
768 dbg("PCPROT: self referencing PC21 from $self->{call}");
772 RouteDB::delete($call, $self->{call});
774 my $parent = Route::Node::get($self->{call});
776 dbg("PCPROT: my parent $self->{call} has disappeared");
783 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
784 my $node = Route::Node::get($call);
787 my $dxchan = DXChannel::get($call);
788 if ($dxchan && $dxchan != $self) {
789 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
794 return unless $self->in_filter_route($node);
796 # routing objects, force a PC21 if it is local
797 push @rout, $node->del($parent);
798 push @rout, $call if $dxchan && @rout == 0;
801 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
806 $self->route_pc21($origin, $line, @rout);
807 $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
818 $self->state('normal');
819 $self->{lastping} = 0;
830 # route foreign' pc27s
832 if ($_[8] ne $main::mycall) {
833 $self->route($_[8], $line);
838 # only do a rspf check on PC23 (not 27)
840 return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7])
844 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
845 my $sfi = unpad($_[3]);
846 my $k = unpad($_[4]);
847 my $i = unpad($_[5]);
848 my ($r) = $_[6] =~ /R=(\d+)/;
850 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
851 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
855 # global wwv filtering on INPUT
856 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
857 if ($self->{inwwvfilter}) {
858 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
860 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
864 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
865 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
866 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
870 # note this only takes the first one it gets
871 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
875 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
877 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
880 # DON'T be silly and send on PC27s!
881 return if $pcno == 27;
883 # broadcast to the eager world
884 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
896 $nref = Route::Node::get($call);
897 $uref = Route::User::get($call);
898 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
900 if (eph_dup($line)) {
901 dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
905 $nref->here($_[2]) if $nref;
906 $uref->here($_[2]) if $uref;
907 my $ref = $nref || $uref;
908 return unless $self->in_filter_route($ref);
910 $self->route_pc24($origin, $line, $ref, $_[3]);
920 if ($_[1] ne $main::mycall) {
921 $self->route($_[1], $line);
924 if ($_[2] eq $main::mycall) {
925 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
929 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
933 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
936 $self->send(pc26(@{$in}[0..4], $_[2]));
942 my @in = reverse Geomag::search(0, $_[4], time, 1);
945 $self->send(pc27(@{$in}[0..5], $_[2]));
950 sub handle_26 {goto &handle_11}
951 sub handle_27 {goto &handle_23}
960 if ($_[1] eq $main::mycall) {
962 my $sub = "DXMsg::handle_$pcno";
965 $self->route($_[1], $line) unless $self->is_clx;
969 sub handle_29 {goto &handle_28}
970 sub handle_30 {goto &handle_28}
971 sub handle_31 {goto &handle_28}
972 sub handle_32 {goto &handle_28}
973 sub handle_33 {goto &handle_28}
981 if (eph_dup($line, $eph_pc34_restime)) {
982 dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
984 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
988 # remote command replies
995 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
996 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
999 sub handle_36 {goto &handle_34}
1008 if ($_[1] eq $main::mycall) {
1010 my $sub = "DXDb::handle_$pcno";
1013 $self->route($_[1], $line) unless $self->is_clx;
1017 # node connected list from neighbour
1026 # incoming disconnect
1033 if ($_[1] eq $self->{call}) {
1034 $self->disconnect(1);
1036 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1040 sub handle_40 {goto &handle_28}
1052 $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
1053 if (eph_dup($l, $eph_info_restime)) {
1054 dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
1058 # input filter if required
1059 # my $ref = Route::get($call) || Route->new($call);
1060 # return unless $self->in_filter_route($ref);
1062 if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
1063 dbg('PCPROT: invalid value') if isdbg('chanerr');
1067 # add this station to the user database, if required
1068 my $user = DXUser->get_current($call);
1069 $user = DXUser->new($call) unless $user;
1073 } elsif ($_[2] == 2) {
1075 } elsif ($_[2] == 3) {
1076 if (is_latlong($_[3])) {
1077 my ($lat, $long) = DXBearing::stoll($_[3]);
1080 $user->qra(DXBearing::lltoqra($lat, $long));
1082 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1085 } elsif ($_[2] == 4) {
1086 $user->homenode($_[3]);
1087 } elsif ($_[2] == 5) {
1088 if (is_qra(uc $_[3])) {
1089 my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
1092 $user->qra(uc $_[3]);
1094 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1098 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1101 unless ($self->{isolate}) {
1102 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1105 # perhaps this IS what we want after all
1106 # $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
1109 sub handle_42 {goto &handle_28}
1113 sub handle_44 {goto &handle_37}
1114 sub handle_45 {goto &handle_37}
1115 sub handle_46 {goto &handle_37}
1116 sub handle_47 {goto &handle_37}
1117 sub handle_48 {goto &handle_37}
1119 # message and database
1127 if (eph_dup($line)) {
1128 dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
1132 if ($_[1] eq $main::mycall) {
1133 DXMsg::handle_49($self, @_);
1135 $self->route($_[1], $line) unless $self->is_clx;
1139 # keep alive/user list
1149 RouteDB::update($call, $self->{call});
1151 my $node = Route::Node::get($call);
1153 return unless $node->call eq $self->{call};
1154 $node->usercount($_[2]);
1156 # input filter if required
1157 return unless $self->in_filter_route($node);
1159 $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1163 # incoming ping requests/answers
1176 if ($to eq $main::mycall) {
1178 $self->send(pc51($from, $to, '0'));
1180 DXXml::Ping::handle_ping_reply($self, $from);
1184 RouteDB::update($from, $self->{call});
1186 if (eph_dup($line)) {
1187 dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1190 # route down an appropriate thingy
1191 $self->route($to, $line);
1195 # dunno but route it
1203 if ($call ne $main::mycall) {
1204 $self->route($call, $line);
1218 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1219 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1220 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1223 @_ = map { unpad($_) } @_;
1225 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1229 my $wcy = WCY::update($d, @_[2..12]);
1233 $rep = Local::wcy($self, @_[1..12]);
1235 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1238 # broadcast to the eager world
1239 send_wcy_spot($self, $line, $d, @_[2..12]);
1242 # remote commands (incoming)
1249 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1252 # remote command replies
1259 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1262 # decode a pc92 call: flag call : version : build
1263 sub _decode_pc92_call
1266 my @part = split /:/, $icall;
1267 my ($flag, $call) = unpack "A A*", $part[0];
1268 return () unless $flag && $flag ge '0' && $flag le '7';
1269 return () unless $call && is_callsign($call);
1270 my $is_node = $flag & 4;
1271 my $is_extnode = $flag & 2;
1272 my $here = $flag & 1;
1273 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);
1276 # decode a pc92 call: flag call : version : build
1277 sub _encode_pc92_call
1282 my $call = $ref->call;
1284 $flag |= $ref->here ? 1 : 0;
1285 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1287 my $dxchan = DXChannel::get($call);
1288 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc92};
1290 if ($ref->version) {
1291 my $version = $ref->version || 1.0;
1292 $version = $version * 100 + 5300 if $version < 50;
1293 $extra .= ":" . $version;
1297 return "$flag$call$extra";
1304 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($s);
1309 @rout = $parent->add($call, $version, Route::here($here));
1311 @rout = $parent->add_user($call, Route::here($here));
1321 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($s);
1325 my $nref = Route::Node::get($call);
1326 @rout = $nref->del($parent) if $nref;
1328 my $uref = Route::User::get($call);
1329 @rout = $parent->del_user($uref) if $uref;
1335 # DXSpider routing entries
1343 $self->{do_pc92} ||= 1;
1347 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
1353 my @ent = grep {$_ && /^[0-7]/} @_[4 .. $#_];
1355 if ($pcall eq $main::mycall) {
1356 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1360 my $parent = Route::Node::get($pcall);
1362 my $lastid = $parent->lastid->{92} || 0;
1364 dbg("PCPROT: dup / old id <= $lastid, ignored") if isdbg('chanerr');
1368 $parent = Route::Node->new($pcall);
1370 $parent->lastid->{92} = $t;
1373 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($ent[0]);
1374 if ($call && $is_node && $call eq $pcall) {
1375 $parent->here(Route::here($here));
1376 $parent->version($version) if $version;
1377 $parent->build($build) if $build;
1378 } elsif ($is_extnode) {
1379 # reparent to external node (note that we must have received a 'C' or 'A' record
1380 # from the true parent node for this external before we get one for the this node
1381 unless ($parent = Route::Node::get($call)) {
1382 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1386 dbg("PCPROT: must be mycall or external node as first entry, ignored") if isdbg('chanerr');
1396 push @radd, _add_thingy($parent, $_);
1398 } elsif ($sort eq 'D') {
1400 push @rdel, _del_thingy($parent, $_);
1402 } elsif ($sort eq 'C') {
1403 my (@nodes, @users);
1405 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1413 dbg("DXPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1417 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1420 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1422 push @radd,_add_thingy($parent, $_) if grep $call eq $_, (@$nnodes, @$nusers);
1423 push @rdel,_del_thingy($parent, $_) if grep $call eq $_, (@$dnodes, @$dusers);
1427 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1431 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1432 foreach my $r (@rdel) {
1435 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1436 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1438 foreach my $r (@radd) {
1441 $self->route_pc19($pcall, undef, $r) if $r->isa('Route::Node');
1442 $self->route_pc16($pcall, undef, $parent, $r) if $r->isa('Route::User');
1446 # if get here then rebroadcast the thing with its Hop count decremented (if
1447 # there is one). If it has a hop count and it decrements to zero then don't
1450 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1461 if (eph_dup($line)) {
1462 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1464 unless ($self->{isolate}) {
1465 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me