3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2006 Dirk Koopman G1TLH
40 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
41 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
42 $pingint $obscount %pc19list $chatdupeage $chatimportfn
43 $investigation_int $pc19_version $myprot_version
44 %nodehops $baddx $badspotter $badnode $censorpc
45 $allowzero $decode_dk0wcy $send_opernam @checklist
46 $eph_pc15_restime $pc9x_past_age $pc9x_future_age
47 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
50 $pc9x_past_age = 62*60; # maximum age in the past of a px9x (a config record might be the only
51 # thing a node might send - once an hour)
52 $pc9x_future_age = 2*3600; # maximum age in the future ditto
53 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
54 $pc92_slug_changes = 60; # slug any changes going outward for this long
55 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
57 # incoming talk commands
65 # this is to catch loops caused by bad software ...
66 if (eph_dup($line, $pc10_dupe_age)) {
70 # will we allow it at all?
73 if (@bad = BadWords::check($_[3])) {
74 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
79 # is it for me or one of mine?
80 my ($from, $to, $via, $call, $dxchan);
89 # if this is a 'nodx' node then ignore it
90 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
91 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
95 # if this is a 'bad spotter' user then ignore it
98 if ($badspotter->in($nossid)) {
99 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
103 # if we are converting announces to talk is it a dup?
105 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
106 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
111 # remember a route to this node and also the node on which this user is
112 RouteDB::update($_[6], $self->{call});
113 # RouteDB::update($to, $_[6]);
115 # convert this to a PC93, coming from mycall with origin set and process it as such
116 $main::me->normal(pc93($to, $from, $via, $_[3], $_[6]));
127 # route 'foreign' pc26s
129 if ($_[7] ne $main::mycall) {
130 $self->route($_[7], $line);
135 # my ($hops) = $_[8] =~ /^H(\d+)/;
137 # is the spotted callsign blank? This should really be trapped earlier but it
138 # could break other protocol sentences. Also check for lower case characters.
139 if ($_[2] =~ /^\s*$/) {
140 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
143 if ($_[2] =~ /[a-z]/) {
144 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
149 # if this is a 'nodx' node then ignore it
150 if ($badnode->in($_[7])) {
151 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
155 # if this is a 'bad spotter' user then ignore it
157 $nossid =~ s/-\d+$//;
158 if ($badspotter->in($nossid)) {
159 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
163 # convert the date to a unix date
164 my $d = cltounix($_[3], $_[4]);
165 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
166 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
167 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
172 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
173 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
178 $_[5] =~ s/^\s+//; # take any leading blanks off
179 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
180 if ($_[2] =~ /BUST\w*$/) {
181 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
186 if (@bad = BadWords::check($_[5])) {
187 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
193 # RouteDB::update($_[7], $self->{call});
194 # RouteDB::update($_[6], $_[7]);
196 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]);
197 # global spot filtering on INPUT
198 if ($self->{inspotsfilter}) {
199 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
201 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
206 # this goes after the input filtering, but before the add
207 # so that if it is input filtered, it isn't added to the dup
208 # list. This allows it to come in from a "legitimate" source
209 if (Spot::dup(@spot[0..4,5])) {
210 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
218 # @spot at this point contains:-
219 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
220 # then spotted itu, spotted cq, spotters itu, spotters cq
221 # you should be able to route on any of these
224 # fix up qra locators of known users
225 my $user = DXUser->get_current($spot[4]);
227 my $qra = $user->qra;
228 unless ($qra && is_qra($qra)) {
229 my $lat = $user->lat;
230 my $long = $user->long;
231 if (defined $lat && defined $long) {
232 $user->qra(DXBearing::lltoqra($lat, $long));
237 # send a remote command to a distant cluster if it is visible and there is no
238 # qra locator and we havn't done it for a month.
240 unless ($user->qra) {
242 my $to = $user->homenode;
243 my $last = $user->lastoper || 0;
244 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
245 my $cmd = "forward/opernam $spot[4]";
246 # send the rcmd but we aren't interested in the replies...
247 my $dxchan = $node->dxchan;
248 if ($dxchan && $dxchan->is_clx) {
249 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
251 route(undef, $to, pc34($main::mycall, $to, $cmd));
255 $node = Route::Node::get($to);
257 $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));
265 $user->lastoper($main::systime);
274 $r = Local::spot($self, @spot);
276 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
279 # DON'T be silly and send on PC26s!
280 return if $pcno == 26;
282 # send out the filtered spots
283 send_dx_spot($self, $line, @spot) if @spot;
294 # announce duplicate checking
295 $_[3] =~ s/^\s+//; # remove leading blanks
299 if (@bad = BadWords::check($_[3])) {
300 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
305 # if this is a 'nodx' node then ignore it
306 if ($badnode->in($_[5])) {
307 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
311 # if this is a 'bad spotter' user then ignore it
313 $nossid =~ s/-\d+$//;
314 if ($badspotter->in($nossid)) {
315 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
322 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
323 $self->send_chat(0, $line, @_[1..6]);
324 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
327 # RouteDB::update($_[5], $self->{call});
328 # RouteDB::update($_[1], $_[5]);
330 # ignore something that looks like a chat line coming in with sysop
331 # flag - this is a kludge...
332 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
333 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
337 # here's a bit of fun, convert incoming ann with a callsign in the first word
338 # or one saying 'to <call>' to a talk if we can route to the recipient
340 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
342 my $ref = Route::get($call);
344 $dxchan = $ref->dxchan;
345 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
352 $self->send_announce(0, $line, @_[1..6]);
354 $self->route($_[2], $line);
365 if (eph_dup($line, $eph_pc15_restime)) {
368 unless ($self->{isolate}) {
369 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
385 my $newline = "PC16^";
387 # dos I want users from this channel?
388 unless ($self->user->wantpc16) {
389 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
394 if ($ncall eq $main::mycall) {
395 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
400 $h = 1 if DXChannel::get($ncall);
401 RouteDB::update($ncall, $self->{call}, $h);
402 if ($h && $self->{call} ne $ncall) {
403 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
407 if (eph_dup($line)) {
411 # isolate now means only accept stuff from this call only
412 if ($self->{isolate} && $ncall ne $self->{call}) {
413 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
417 my $parent = Route::Node::get($ncall);
420 $dxchan = $parent->dxchan;
421 if ($dxchan && $dxchan ne $self) {
422 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
426 # input filter if required
427 return unless $self->in_filter_route($parent);
429 $parent = Route::Node->new($ncall);
433 if ($parent->via_pc92) {
434 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
441 for ($i = 2; $i < $#_; $i++) {
442 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
443 next unless $call && $conf && defined $here && is_callsign($call);
444 next if $call eq $main::mycall;
446 eph_del_regex("^PC17\\^$call\\^$ncall");
448 $conf = $conf eq '*';
450 # reject this if we think it is a node already
451 my $r = Route::Node::get($call);
452 my $u = DXUser->get_current($call) unless $r;
453 if ($r || ($u && $u->is_node)) {
454 dbg("PCPROT: $call is a node") if isdbg('chanerr');
458 $r = Route::User::get($call);
459 my $flags = Route::here($here)|Route::conf($conf);
462 my $au = $r->addparent($parent);
463 if ($r->flags != $flags) {
467 push @rout, $r if $h && $au;
469 my @ans = $parent->add_user($call, $flags);
470 push @rout, @ans if $h && @ans;
473 # add this station to the user database, if required
474 my $user = DXUser->get_current($ncall);
475 $user = DXUser->new($call) unless $user;
476 $user->homenode($parent->call) if !$user->homenode;
477 $user->node($parent->call);
478 $user->lastin($main::systime) unless DXChannel::get($call);
481 # send info to all logged in thingies
482 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
483 $self->tell_buddies('loginb', $call, $ncall);
486 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
487 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
502 eph_del_regex("^PC16\\^$ncall.*$ucall");
504 # do I want users from this channel?
505 unless ($self->user->wantpc16) {
506 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
510 if ($ncall eq $main::mycall) {
511 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
515 # isolate now means only accept stuff from this call only
516 if ($self->{isolate} && $ncall ne $self->{call}) {
517 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
521 RouteDB::delete($ncall, $self->{call});
523 my $uref = Route::User::get($ucall);
525 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
528 my $parent = Route::Node::get($ncall);
530 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
534 $dxchan = DXChannel::get($ncall);
535 if ($dxchan && $dxchan ne $self) {
536 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
541 if ($parent->via_pc92) {
542 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
547 if (DXChannel::get($ucall)) {
548 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
552 # input filter if required and then remove user if present
553 # return unless $self->in_filter_route($parent);
554 $parent->del_user($uref);
556 # send info to all logged in thingies
557 my $user = DXUser->get_current($ncall);
558 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
559 $self->tell_buddies('logoutb', $ucall, $ncall);
561 if (eph_dup($line)) {
565 $self->route_pc17($origin, $line, $parent, $uref);
566 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
576 $self->state('init');
578 my $parent = Route::Node::get($self->{call});
580 # record the type and version offered
581 if (my ($version) = $_[1] =~ /DXSpider Version: (\d+\.\d+)/) {
582 $self->{version} = 53 + $version;
583 $self->user->version(53 + $version);
584 $parent->version(0 + $version);
585 my ($build) = $_[1] =~ /Build: (\d+(?:\.\d+)?)/;
586 $self->{build} = 0 + $build;
587 $self->user->build(0 + $build);
588 $parent->build(0 + $build);
589 dbg("DXSpider version $version build $build");
590 unless ($self->is_spider) {
591 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
592 $self->user->sort('S');
596 # $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml/;
598 dbg("Unknown software");
599 $self->version(50.0);
600 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
601 $self->user->version($self->version);
604 if ($_[1] =~ /\bpc9x/) {
605 if ($self->{isolate}) {
606 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
607 } elsif (!$self->user->wantpc9x) {
608 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
610 $self->{do_pc9x} = 1;
611 dbg("Do px9x set on $self->{call}");
615 # first clear out any nodes on this dxchannel
616 my @rout = $parent->del_nodes;
617 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
618 $self->send_local_config();
626 # add this station to the user database, if required (don't remove SSID from nodes)
627 my $user = DXUser->get_current($call);
629 $user = DXUser->new($call);
630 $user->priv(1); # I have relented and defaulted nodes
632 $user->homenode($call);
635 $user->sort('A') unless $user->is_node;
639 # incoming cluster list
648 my $newline = "PC19^";
651 my (@rout, @pc92out);
653 # first get the INTERFACE node
654 my $parent = Route::Node::get($self->{call});
656 dbg("PCPROT: my parent $self->{call} has disappeared");
665 # We are making a major change from now on. We are only going to accept
666 # PC19s from directly connected nodes. This means that we are probably
667 # going to throw away most of the data that we are being sent.
669 # The justification for this is that most of it is wrong or out of date
672 # From now on we are only going to believe PC92 data and locally connected
675 for ($i = 1; $i < $#_-1; $i += 4) {
677 my $call = uc $_[$i+1];
680 next unless defined $here && defined $conf && is_callsign($call);
682 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
684 # check for sane parameters
685 # $ver = 5000 if $ver eq '0000';
686 next unless $ver && $ver =~ /^\d+$/;
687 next if $ver < 5000; # only works with version 5 software
688 next if length $call < 3; # min 3 letter callsigns
689 next if $call eq $main::mycall;
691 # check that this PC19 isn't trying to alter the wrong dxchan
693 my $dxchan = DXChannel::get($call);
695 if ($dxchan == $self) {
698 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
703 # isolate now means only accept stuff from this call only
704 if ($self->{isolate} && $call ne $self->{call}) {
705 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
709 my $user = check_add_node($call);
711 # if (eph_dup($genline)) {
712 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
716 RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef);
719 if ($parent->via_pc92) {
720 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
725 my $r = Route::Node::get($call);
726 my $flags = Route::here($here)|Route::conf($conf);
728 # modify the routing table if it is in it, otherwise store it in the pc19list for now
731 if ($call ne $parent->call) {
732 if ($self->in_filter_route($r)) {
733 $ar = $parent->add($call, $ver, $flags);
734 # push @rout, $ar if $ar;
739 if ($r->version ne $ver || $r->flags != $flags) {
745 if ($call eq $self->{call} || $user->wantroutepc19) {
746 my $new = Route->new($call); # throw away
747 if ($self->in_filter_route($new)) {
748 my $ar = $parent->add($call, $ver, $flags);
749 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
750 push @rout, $ar if $ar;
751 push @pc92out, $r if $h;
758 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
759 my $mref = DXMsg::get_busy($call);
760 $mref->stop_msg($call) if $mref;
762 $user->lastin($main::systime) unless DXChannel::get($call);
766 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
767 # but remember there will only be one (pair) these because any extras will be
770 # $self->route_pc21($self->{call}, $line, @rout);
771 $self->route_pc19($self->{call}, $line, @rout);
773 if (@pc92out && !$pc92_slug_changes) {
774 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
778 # send local configuration
786 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
787 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
788 $self->{do_pc9x} = 0;
790 $self->send_local_config;
792 $self->state('normal');
793 $self->{lastping} = 0;
794 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
797 # delete a cluster from the list
799 # This should never occur for directly connected nodes.
809 eph_del_regex("^PC1[679].*$call");
811 # if I get a PC21 from the same callsign as self then ignore it
812 if ($call eq $self->{call}) {
813 dbg("PCPROT: self referencing PC21 from $self->{call}");
817 # for the above reason and also because of the check for PC21s coming
818 # in for self->call from outside being ignored further down
819 # we don't need any isolation code here, because we will never
820 # act on a PC21 with self->call in it.
822 RouteDB::delete($call, $self->{call});
824 my $parent = Route::Node::get($self->{call});
826 dbg("PCPROT: my parent $self->{call} has disappeared");
833 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
834 my $node = Route::Node::get($call);
837 if ($node->via_pc92) {
838 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
842 my $dxchan = DXChannel::get($call);
843 if ($dxchan && $dxchan != $self) {
844 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
849 return unless $self->in_filter_route($node);
851 # routing objects, force a PC21 if it is local
852 push @rout, $node->del($parent);
853 push @rout, $call if $dxchan && @rout == 0;
856 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
860 if (eph_dup($line)) {
865 $self->route_pc21($origin, $line, @rout);
866 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
878 if ($self->{do_pc9x}) {
879 if ($self->{state} ne 'init92') {
880 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
881 $self->{do_pc9x} = 0;
884 $self->{lastping} = 0;
885 $self->state('normal');
886 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
897 # route foreign' pc27s
899 if ($_[8] ne $main::mycall) {
900 $self->route($_[8], $line);
907 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
908 my $sfi = unpad($_[3]);
909 my $k = unpad($_[4]);
910 my $i = unpad($_[5]);
911 my ($r) = $_[6] =~ /R=(\d+)/;
913 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
914 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
918 # global wwv filtering on INPUT
919 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
920 if ($self->{inwwvfilter}) {
921 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
923 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
927 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
928 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
929 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
933 # note this only takes the first one it gets
934 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
938 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
940 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
943 # DON'T be silly and send on PC27s!
944 return if $pcno == 27;
946 # broadcast to the eager world
947 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
959 $nref = Route::Node::get($call);
960 $uref = Route::User::get($call);
961 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
963 if (eph_dup($line)) {
967 $nref->here($_[2]) if $nref;
968 $uref->here($_[2]) if $uref;
969 my $ref = $nref || $uref;
970 return unless $self->in_filter_route($ref);
972 $self->route_pc24($origin, $line, $ref, $_[3]);
982 if ($_[1] ne $main::mycall) {
983 $self->route($_[1], $line);
986 if ($_[2] eq $main::mycall) {
987 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
991 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
995 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
998 $self->send(pc26(@{$in}[0..4], $_[2]));
1004 my @in = reverse Geomag::search(0, $_[4], time, 1);
1007 $self->send(pc27(@{$in}[0..5], $_[2]));
1012 sub handle_26 {goto &handle_11}
1013 sub handle_27 {goto &handle_23}
1015 # mail/file handling
1022 if ($_[1] eq $main::mycall) {
1024 my $sub = "DXMsg::handle_$pcno";
1027 $self->route($_[1], $line) unless $self->is_clx;
1031 sub handle_29 {goto &handle_28}
1032 sub handle_30 {goto &handle_28}
1033 sub handle_31 {goto &handle_28}
1034 sub handle_32 {goto &handle_28}
1035 sub handle_33 {goto &handle_28}
1043 if (eph_dup($line, $eph_pc34_restime)) {
1046 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1050 # remote command replies
1057 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1058 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1061 sub handle_36 {goto &handle_34}
1070 if ($_[1] eq $main::mycall) {
1072 my $sub = "DXDb::handle_$pcno";
1075 $self->route($_[1], $line) unless $self->is_clx;
1079 # node connected list from neighbour
1088 # incoming disconnect
1095 if ($_[1] eq $self->{call}) {
1096 $self->disconnect(1);
1098 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1102 sub handle_40 {goto &handle_28}
1115 my $l = "PC41^$call^$sort";
1116 if (eph_dup($l, $eph_info_restime)) {
1120 # input filter if required
1121 # my $ref = Route::get($call) || Route->new($call);
1122 # return unless $self->in_filter_route($ref);
1124 if ($val eq $sort || $val =~ /^\s*$/) {
1125 dbg('PCPROT: invalid value') if isdbg('chanerr');
1129 # add this station to the user database, if required
1130 my $user = DXUser->get_current($call);
1131 $user = DXUser->new($call) unless $user;
1134 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1135 dbg("PCPROT: invalid name") if isdbg('chanerr');
1136 if ($main::mycall eq 'GB7DJK' || $main::mycall eq 'GB7BAA' || $main::mycall eq 'WR3D') {
1137 DXChannel::broadcast_nodes(pc41($_[1], 1, $user->name)); # send it to everyone including me
1142 } elsif ($sort == 2) {
1144 } elsif ($sort == 3) {
1145 if (is_latlong($val)) {
1146 my ($lat, $long) = DXBearing::stoll($val);
1147 $user->lat($lat) if $lat;
1148 $user->long($long) if $long;
1149 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1151 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1154 } elsif ($sort == 4) {
1155 $user->homenode($val);
1156 } elsif ($sort == 5) {
1157 if (is_qra(uc $val)) {
1158 my ($lat, $long) = DXBearing::qratoll(uc $val);
1159 $user->lat($lat) if $lat && !$user->lat;
1160 $user->long($long) if $long && !$user->long;
1161 $user->qra(uc $val);
1163 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1167 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1170 unless ($self->{isolate}) {
1171 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1174 # perhaps this IS what we want after all
1175 # $self->route_pc41($ref, $call, $sort, $val, $_[4]);
1178 sub handle_42 {goto &handle_28}
1182 sub handle_44 {goto &handle_37}
1183 sub handle_45 {goto &handle_37}
1184 sub handle_46 {goto &handle_37}
1185 sub handle_47 {goto &handle_37}
1186 sub handle_48 {goto &handle_37}
1188 # message and database
1196 if (eph_dup($line)) {
1200 if ($_[1] eq $main::mycall) {
1201 DXMsg::handle_49($self, @_);
1203 $self->route($_[1], $line) unless $self->is_clx;
1207 # keep alive/user list
1215 return if (eph_dup($line));
1219 RouteDB::update($call, $self->{call});
1221 my $node = Route::Node::get($call);
1223 return unless $node->call eq $self->{call};
1224 $node->usercount($_[2]) unless $node->users;
1227 # input filter if required
1228 # return unless $self->in_filter_route($node);
1230 unless ($self->{isolate}) {
1231 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1233 # $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1237 # incoming ping requests/answers
1250 if ($to eq $main::mycall) {
1252 $self->send(pc51($from, $to, '0'));
1254 DXXml::Ping::handle_ping_reply($self, $from);
1258 RouteDB::update($from, $self->{call});
1260 if (eph_dup($line)) {
1263 # route down an appropriate thingy
1264 $self->route($to, $line);
1268 sub handle_61 { goto &handle_11; }
1270 # dunno but route it
1278 if ($call ne $main::mycall) {
1279 $self->route($call, $line);
1293 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1294 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1295 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1298 @_ = map { unpad($_) } @_;
1300 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1304 my $wcy = WCY::update($d, @_[2..12]);
1308 $rep = Local::wcy($self, @_[1..12]);
1310 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1313 # broadcast to the eager world
1314 send_wcy_spot($self, $line, $d, @_[2..12]);
1317 # remote commands (incoming)
1324 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1327 # remote command replies
1334 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1337 # decode a pc92 call: flag call : version : build
1338 sub _decode_pc92_call
1341 my @part = split /:/, $icall;
1342 my ($flag, $call) = unpack "A A*", $part[0];
1343 unless (defined $flag && $flag ge '0' && $flag le '7') {
1344 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1347 unless ($call && is_callsign($call)) {
1348 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1351 my $is_node = $flag & 4;
1352 my $is_extnode = $flag & 2;
1353 my $here = $flag & 1;
1354 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);
1357 # decode a pc92 call: flag call : version : build
1358 sub _encode_pc92_call
1362 # plain call or value
1363 return $ref unless ref $ref;
1367 my $call = $ref->call;
1369 $flag |= $ref->here ? 1 : 0;
1370 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1372 my $dxchan = DXChannel::get($call);
1373 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1375 if ($ref->version) {
1376 my $version = $ref->version || 1.0;
1377 $version = $version * 100 + 5300 if $version < 50;
1378 $extra .= ":" . $version;
1382 return "$flag$call$extra";
1392 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1397 dbg("ROUTE: added node $call to " . $parent->call) if isdbg('routelow');
1398 @rout = $parent->add($call, $version, Route::here($here));
1400 dbg("ROUTE: added user $call to " . $parent->call) if isdbg('routelow');
1401 @rout = $parent->add_user($call, Route::here($here));
1403 if ($pc92_slug_changes && $parent == $main::routeroot) {
1404 $things_add{$call} = Route::get($call);
1405 delete $things_del{$call};
1415 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1420 $ref = Route::Node::get($call);
1421 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1422 @rout = $ref->del($parent) if $ref;
1424 $ref = Route::User::get($call);
1425 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1426 @rout = $parent->del_user($ref) if $ref;
1428 if ($pc92_slug_changes && $parent == $main::routeroot) {
1429 $things_del{$call} = $ref unless exists $things_add{$call};
1430 delete $things_add{$call};
1436 # this will only happen if we are slugging changes and
1437 # there are some changes to be sent, it will create an add or a delete
1439 sub gen_pc92_changes
1441 my @add = values %things_add;
1442 my @del = values %things_del;
1443 return (\@add, \@del);
1446 sub clear_pc92_changes
1448 %things_add = %things_del = ();
1449 $last_pc92_slug = $main::systime;
1458 return $_last_pc9x_id;
1463 if (!$_last_time || $_last_time != $main::systime) {
1464 $_last_time = $main::systime;
1466 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1469 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1480 my $parent = ref $call ? $call : Route::Node::get($call);
1482 # we only do this for external calls whose routing table
1483 # record come and go. The reference for mycall is permanent
1484 # and not that frequently used, it also never times out, so
1485 # the id on it is completely unreliable. Besides, only commands
1486 # originating on this box will go through this code...
1487 if ($parent->call ne $main::mycall) {
1488 my $lastid = $parent->lastid;
1489 if (defined $lastid) {
1491 if ($t+86400-$lastid > $pc9x_past_age) {
1492 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr');
1495 } elsif ($t == $lastid) {
1496 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr');
1499 # $t > $lastid, check that the timestamp offered isn't too far away from 'now'
1500 if ($t-$lastid > $pc9x_future_age ) {
1501 dbg("PCPROT: id $t too far in the future of lastid $lastid, ignored") if isdbg('chanerr');
1508 $parent = Route::Node->new($call);
1510 $parent->lastid($t) if $parent;
1515 sub pc92_handle_first_slot
1521 my $oparent = $parent;
1525 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1526 if ($call && $is_node) {
1527 if ($call eq $main::mycall) {
1528 dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
1531 # this is only accepted from my "self".
1532 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1533 # locally connected. Local nodes always take precedence. But we remember the lastid
1534 # to try to reduce the number of dupe PC92s for this external node.
1535 if (DXChannel::get($call) && $call ne $self->{call}) {
1536 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1537 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1541 # reparent to external node (note that we must have received a 'C' or 'A' record
1542 # from the true parent node for this external before we get one for the this node
1543 unless ($parent = Route::Node::get($call)) {
1544 if ($is_extnode && $oparent) {
1545 @radd = _add_thingy($oparent, $slot);
1548 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1552 $parent = check_pc9x_t($call, $t, 92) || return;
1553 $parent->via_pc92(1);
1554 $parent->PC92C_dxchan($self->{call});
1557 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1560 $parent->here(Route::here($here));
1561 $parent->version($version || $pc19_version) if $version;
1562 $parent->build($build) if $build;
1563 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1564 return ($parent, @radd);
1567 # DXSpider routing entries
1581 if ($pcall eq $main::mycall) {
1582 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1586 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1587 if ($self->{isolate}) {
1588 dbg("PC9x received, but $pcall is isolated, ignored");
1590 } elsif (!$self->user->wantpc9x) {
1591 dbg("PC9x explicitly switched off on $pcall, ignored");
1594 $self->state('init92');
1595 $self->{do_pc9x} = 1;
1596 dbg("Do pc9x set on $pcall");
1599 unless ($self->{do_pc9x}) {
1600 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1604 my $parent = check_pc9x_t($pcall, $t, 92, 1) || return;
1605 my $oparent = $parent;
1607 $parent->do_pc9x(1);
1608 $parent->via_pc92(1);
1610 if ($sort eq 'F' || $sort eq 'R') {
1612 # this is the route finding section
1613 # here is where the consequences of the 'find' command
1623 if ($ref = DXChannel::get($target)) {
1624 $flag = 1; # we are directly connected
1626 $ref = Route::get($target);
1627 $dxchan = $ref->dxchan;
1630 if ($ref && $flag && $dxchan) {
1631 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1634 } elsif ($sort eq 'R') {
1635 if (my $dxchan = DXChannel::get($from)) {
1636 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @_[6,7]);
1638 my $ref = Route::get($from);
1640 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1642 $_->send($line) for @dxchan;
1644 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1647 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1653 } elsif ($sort eq 'K') {
1654 # remember the last channel we arrived on
1655 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1657 my @ent = _decode_pc92_call($_[4]);
1662 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t);
1663 return unless $parent; # dupe
1665 push @radd, $add if $add;
1667 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1669 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1671 # remember the last channel we arrived on
1672 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1674 # this is the main route section
1675 # here is where all the routes are created and destroyed
1677 # cope with missing duplicate node calls in the first slot
1678 my $me = $_[4] || '';
1679 $me ||= _encode_pc92_call($parent) unless $me ;
1681 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
1685 # look at the first one which will always be a node of some sort
1686 # except in the case of 'A' or 'D' in which the $pcall is used
1687 # otherwise use the node call and update any information
1688 # that needs to be done.
1691 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t);
1692 return unless $parent; # dupe
1695 push @radd, $add if $add;
1698 # do a pass through removing any references to either locally connected nodes or mycall
1701 next unless $_ && @$_;
1702 if ($_->[0] eq $main::mycall || DXChannel::get($_->[0])) {
1703 dbg("PCPROT: $_->[0] refers to locally connected node, ignored") if isdbg('chanerr');
1711 push @radd, _add_thingy($parent, $_);
1713 } elsif ($sort eq 'D') {
1715 push @rdel, _del_thingy($parent, $_);
1717 } elsif ($sort eq 'C') {
1718 my (@nodes, @users);
1720 # we reset obscounts on config records as well as K records
1722 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1725 foreach my $r (@nent) {
1726 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1729 push @nodes, $r->[0];
1731 push @users, $r->[0];
1734 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1738 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1741 foreach my $r (@nent) {
1744 push @radd,_add_thingy($parent, $r) if grep $call eq $_, (@$nnodes, @$nusers);
1748 foreach my $r (@$dnodes) {
1749 push @rdel,_del_thingy($parent, [$r, 1]);
1751 foreach my $r (@$dusers) {
1752 push @rdel,_del_thingy($parent, [$r, 0]);
1755 # remember this last PC92C for rebroadcast on demand
1756 $parent->last_PC92C($line);
1758 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1762 foreach my $r (@rdel) {
1765 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1766 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1768 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1769 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1770 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1771 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1772 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1775 # broadcast it if we get here
1776 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1787 # $self->{do_pc9x} ||= 1;
1789 my $pcall = $_[1]; # this is now checked earlier
1791 # remember that we are converting PC10->PC93 and self will be $main::me if it
1793 unless ($self->{do_pc9x}) {
1794 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1799 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
1802 my $from = uc $_[4];
1805 my $onode = uc $_[7];
1806 $onode = $pcall if @_ <= 8;
1808 # this is catch loops caused by bad software ...
1809 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
1813 # will we allow it at all?
1816 if (@bad = BadWords::check($text)) {
1817 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
1822 # if this is a 'bad spotter' user then ignore it
1824 $nossid =~ s/-\d+$//;
1825 if ($badspotter->in($nossid)) {
1826 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
1830 # if it is routeable then then treat it like a talk
1831 my $ref = Route::get($to);
1835 $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall;
1836 $dxchan = DXChannel::get($to) unless $dxchan;
1839 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1840 if ($dxchan->is_user) {
1841 $dxchan->talk($from, $to, $via, $text, $onode);
1845 dbg("ERROR: $to -> $dxchan is not a DXChannel! (local talk)");
1849 # convert to PC10 talks where appropriate
1850 # just go for the "best" one for now (rather than broadcast)
1851 $dxchan = $ref->dxchan;
1854 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1855 if ($dxchan->{do_pc9x}) {
1856 $dxchan->send($line);
1858 $dxchan->talk($from, $to, $via, $text, $onode);
1861 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
1865 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
1867 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
1868 my $wx = $to eq 'WX' ? '1' : '0';
1869 my $local = $via eq 'LOCAL' ? '*' : $via;
1871 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
1872 return if $via eq 'LOCAL';
1873 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
1874 # chat messages to non-pc9x nodes
1875 $self->send_chat(1, pc12($from, $text, undef, $to, undef, $pcall), $from, '*', $text, $to, $pcall, '0');
1877 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1880 # if get here then rebroadcast the thing with its Hop count decremented (if
1881 # there is one). If it has a hop count and it decrements to zero then don't
1884 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1895 unless (eph_dup($line)) {
1898 unless (is_callsign($pcall)) {
1899 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
1903 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
1904 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1906 unless ($self->{isolate}) {
1907 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me