3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2007 Dirk Koopman G1TLH
39 no warnings qw(uninitialized);
43 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
44 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
45 $pingint $obscount %pc19list $chatdupeage $chatimportfn
46 $investigation_int $pc19_version $myprot_version
47 %nodehops $baddx $badspotter $badnode $censorpc
48 $allowzero $decode_dk0wcy $send_opernam @checklist
49 $eph_pc15_restime $pc9x_past_age $pc9x_dupe_age
50 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
51 $pc92Ain $pc92Cin $pc92Din $pc92Kin $pc9x_time_tolerance
52 $pc92filterdef $senderverify $pc11_dwell_time $pc11_extract_route $pc92_ad_enabled $pc92c_ipaddr_enabled
55 $pc9x_dupe_age = 60; # catch loops of circular (usually) D records
56 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
57 $pc92_slug_changes = 60*1; # slug any changes going outward for this long
58 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
59 $pc9x_time_tolerance = 15*60; # the time on a pc9x is allowed to be out by this amount
60 $pc9x_past_age = (122*60)+ # maximum age in the past of a px9x (a config record might be the only
61 $pc9x_time_tolerance; # thing a node might send - once an hour and we allow an extra hour for luck)
62 # this is actually the partition between "yesterday" and "today" but old.
63 $senderverify = 0; # 1 - check for forged PC11 or PC61.
64 # 2 - if forged, dump them.
65 $pc11_dwell_time = 2; # number of seconds to wait for a PC61 to come to substitute the PC11
66 $pc11_extract_route = 1; # generate missing user route entry and IP address from passing PC61s
69 $pc92filterdef = bless ([
70 # tag, sort, field, priv, special parser
79 # this is a place to park an incoming PC11 in the sure and certain hope that
80 # a PC61 will be along soon. This has the side benefit that it will delay a
81 # a PC11 for one second - assuming that it is not removed by a PC61 version
83 # incoming talk commands
92 # this is to catch loops caused by bad software ...
93 if (eph_dup($line, $pc10_dupe_age)) {
98 # is it for me or one of mine?
99 my ($from, $to, $via, $call, $dxchan);
101 if ($pc->[5] gt ' ') {
108 # if this is a 'nodx' node then ignore it
109 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
110 dbg($line) if isdbg('nologchan');
111 dbg("PCPROT: Bad Node, dropped");
117 $nossid =~ s/-\d+$//;
118 if ($badspotter->in($nossid)) {
119 dbg($line) if isdbg('nologchan');
120 dbg("PCPROT: Bad Spotter, dropped");
124 # if we are converting announces to talk is it a dup?
126 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
127 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
132 # will we allow it at all?
135 if (@bad = BadWords::check($pc->[3])) {
136 my $bw = join ', ', @bad;
137 dbg($line) if isdbg('nologchan');
138 dbg("PCPROT: Badwords: '$bw', dropped");
143 # convert this to a PC93, coming from mycall with origin set and process it as such
144 my $ref = Route::get($pc->[6]);
146 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]), $ip);
149 my %pc11_saved; # delayed PC11s
150 my $pc11_rx; # no of pc11 rxed
151 my $pc61_rx; # no of pc61 rxed
152 my $pc11_to_61; # no of 'better' pc61, that replaced stored waiting pc11
153 my $rpc11_to_61; # no of pc11s 'promoted' to pc61 by IP captured in routing table
163 my $recurse = shift || 0;
165 # route 'foreign' pc26s
167 if ($pc->[7] ne $main::mycall) {
168 $self->route($pc->[7], $line);
173 dbg("---") if isdbg("pc11") || isdbg("pc61");
174 dbg("INPUT $self->{call}: $line via: $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
176 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
178 # is the spotted callsign blank? This should really be trapped earlier but it
179 # could break other protocol sentences. Also check for lower case characters.
180 if ($pc->[2] =~ /^\s*$/) {
181 dbg($line) if isdbg('nologchan');
182 dbg("PCPROT: blank callsign, dropped");
185 if ($pc->[2] =~ /[a-z]/) {
186 dbg($line) if isdbg('nologchan');
187 dbg("PCPROT: lowercase characters, dropped");
192 # if this is a 'nodx' node then ignore it
193 if ($badnode->in($pc->[7])) {
194 dbg($line) if isdbg('nologchan');
195 dbg("PCPROT: Bad Node $pc->[7], dropped");
199 # convert the date to a unix date
200 my $d = cltounix($pc->[3], $pc->[4]);
201 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
202 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
203 dbg($line) if isdbg('nologchan');
204 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
209 if ($baddx->in($pc->[2])) {
210 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
211 dbg($line) if isdbg('nologchan');
215 # is it claiming to be BUST(ed)
216 $pc->[5] =~ s/^\s+//; # take any leading blanks off
217 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
218 if ($pc->[2] =~ /BUST\w*$/) {
219 dbg($line) if isdbg('nologchan');
220 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
224 my $nossid = $pc->[6];
225 $nossid =~ s/-\d+$//;
227 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
231 # $f2 = date in unix format
234 # $f5 = spotted dxcc country
235 # $f6 = spotter dxcc country
238 # $f9 = spotted cq zone
240 # $f11 = spotter cq zone
241 # $f12 = spotted us state
242 # $f13 = spotter us state
246 # is this is a 'bad spotter' or an unknown user then ignore it.
247 if ($badspotter->in($nossid)) {
248 dbg($line) if isdbg('nologchan');
249 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
253 # global spot filtering on INPUT
254 if ($self->{inspotsfilter}) {
255 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
257 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
262 # Populate the routing table
263 $self->populate_routing_table($pc->[7], $pc->[6], $pc->[8]);
264 my $r = Route::User::get($pc->[6]);
266 unless ($pc->[8] && is_ipaddr($pc->[8])) {
267 dbg("PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");
271 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
272 my $key = join '|', @spot[0..2,4,7]; # not including text
278 if ($pc11_saved{$key}) {
279 # before we promote because it's a better pc61, check that it's not a dupe (but don't insert it).
280 if (Spot::dup_find(@spot[0..4,7])) {
281 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
282 delete $pc11_saved{$key};
288 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
289 dbg(sprintf("PROMOTED $self->{call}: BETTER $pc->[0] $key, using pc61, WAITING pc11 DUMPED: $pc61_rx pc11: $pc11_rx better pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
291 delete $pc11_saved{$key}; # because we have promoted it, no longer needed.
293 # so unlike the promotion by route, there is a stored, but uncounted PC11
294 # which have discarded. But we have chosen to use better PC61 that's just come in
295 # so we allow the PC61 to be counted later, but count the now discarded PC11
296 # because it *did* come in.
303 # if this fires then we have already had one or more PC11s but no PC61 for this spot
304 if ($pc11_saved{$key}) {
305 dbg("DUPE $self->{call} $pc->[0] key: $key is saved, ignored") if isdbg("pc11");
306 return; # because it's a dup
309 # before we promote by route, check that it's not been preceded by a previous PC61
310 if (Spot::dup_find(@spot[0..4,7])) {
311 my $s = exists $pc11_saved{$key} ? " stored $key removed" : "";
312 dbg("PCPROT: Duplicate Spot $self->{call}: PC11$s, recurse: $recurse, ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
313 delete $pc11_saved{$key};
318 # If we have an ip address we can promote by route
323 $pc->[8] = $spot[14] = $r->ip;
325 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
326 dbg(sprintf("PROMOTED $self->{call}: ROUTE pc11 $key PROMOTED to pc61 with IP $spot[14] pc61: $pc61_rx pc11: $pc11_rx route->pc61 $rpc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
327 $line = join '^', @$pc, $hops, '~';
329 # update the stats (NOTE, thie record was a PC11, it has now become a PC61
330 # this is NOT the same choosing a better PC61, that is a separate record.
331 ++$pc11_rx; # 'cos we received as a PC11 it and it won't be a pc11 anymore
332 --$pc61_rx; # 'cos we'll increment it later as it's now a pc61, no double counting
334 # dbg("CHANGED saved key: $key PC11 line to $line") if isdbg('pc11');
335 delete $pc11_saved{$key};
338 # if it is STILL (despite all efforts to change it) a PC11
339 # save it and wait - it will be called from pc11_process
341 $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
342 dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
348 # this goes after the input filtering, but before the add
349 # so that if it is input filtered, it isn't added to the dup
350 # list. This allows it to come in from a "legitimate" source
352 ## NOTE: this is where we insert the spot into the DXDupe cache
354 if (Spot::dup(@spot[0..4,7])) {
355 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
359 dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
367 # we check IP addresses for PC61 - this will also dedupe PC11 promotions
368 if (@$pc > 8 && is_ipaddr($pc->[8])) {
372 if (DXCIDR::find($ip)) {
373 dbg($line) if isdbg('nologchan');
374 dbg("PCPROT: PC61 $ip in badip list, dropped");
379 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
380 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
381 # to be current once we have seen the first PC92C from that node.
383 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
386 my $nroute = Route::Node::get($pc->[7]);
387 my $uroute = Route::Node::get($pc->[6]);
388 my $local = DXChannel::get($pc->[7]);
390 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
392 my $ip = $pcno == 61 ? $pc->[8] : '';
393 # $s .= "User $pc->[6] not logged in, " unless $uroute;
394 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
395 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
397 my $action = $senderverify > 1 ? ", DUMPED" : '';
399 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
400 return unless $senderverify < 2;
405 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
406 # from other connected nodes cause
409 if (@bad = BadWords::check($pc->[5])) {
410 my $bw = join ', ', @bad;
411 dbg($line) if isdbg('nologchan');
412 dbg("PCPROT: Badwords: '$bw', dropped");
422 $ip ||= $spot[14] if exists $spot[14];
423 if (isdbg('progress')) {
424 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
426 my $d = ztime($spot[2]);
427 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
428 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
429 $s .= " route: $origin";
434 # @spot at this point contains:-
435 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
436 # then spotted itu, spotted cq, spotters itu, spotters cq
437 # you should be able to route on any of these
440 # fix up qra locators of known users
441 my $user = DXUser::get_current($spot[4]);
443 my $qra = $user->qra;
444 unless ($qra && is_qra($qra)) {
445 my $lat = $user->lat;
446 my $long = $user->long;
447 if (defined $lat && defined $long) {
448 $user->qra(DXBearing::lltoqra($lat, $long));
453 # send a remote command to a distant cluster if it is visible and there is no
454 # qra locator and we havn't done it for a month.
456 unless ($user->qra) {
458 my $to = $user->homenode;
459 my $last = $user->lastoper || 0;
460 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
461 my $cmd = "forward/opernam $spot[4]";
462 # send the rcmd but we aren't interested in the replies...
463 my $dxchan = $node->dxchan;
464 if ($dxchan && $dxchan->is_clx) {
465 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
467 route(undef, $to, pc34($main::mycall, $to, $cmd));
469 if ($to ne $origin) {
471 $node = Route::Node::get($to);
473 $dxchan = $node->dxchan;
474 if ($dxchan && $dxchan->is_clx) {
475 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
477 route(undef, $to, pc34($main::mycall, $to, $cmd));
481 $user->lastoper($main::systime);
488 if (defined &Local::spot) {
491 $r = Local::spot($self, @spot);
496 # DON'T be silly and send on PC26s!
497 return if $pcno == 26;
499 # send out the filtered spots
500 send_dx_spot($self, $line, @spot) if @spot;
502 # cancel any recursion as we have now processed it
503 my $count = $pc11_to_61+$rpc11_to_61;
504 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
505 my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
506 my $data = "$pc->[0] key: $key";
507 my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
509 if ($pc11_saved{$key}) {
510 dbg("END $self->{call}: RECURSED $data removed and finished $stats") if isdbg('pc11');
511 delete $pc11_saved{$key};
513 dbg("END $self->{call}: RECURSED NO KEY finished $stats") if isdbg('pc11');
517 dbg("END $self->{call}: NORMAL $data finished $stats") if isdbg('pc11');
521 # used to kick outstanding PC11 if required
524 foreach my $key (keys %pc11_saved) {
525 my $r = $pc11_saved{$key};
526 if ($main::systime > $r->[0] + $pc11_dwell_time) {
527 dbg("---") if isdbg("pc11");
528 dbg("RECURSE $r->[1]->{call}: PC11 spot $key timed out waiting, resend") if isdbg("pc11");
530 delete $pc11_saved{$key};
531 $self->handle_11(@$r[2..5], 1);
536 # return the pc11 / pc61 / promotions data
537 sub get_pc11_61_stats
539 my $promotions = $pc11_to_61+$rpc11_to_61;
540 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
541 my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
543 pc11_rx => $pc11_rx+0,
544 pc61_rx => $pc61_rx+0,
545 pc11_to_61 => $pc11_to_61+0,
546 rpc11_to_61 => $rpc11_to_61+0,
547 promotions => $promotions+0,
548 pc11_percent => $percent+0,
549 promotions_percent => $pc11_61p+0,
562 # announce duplicate checking
563 $pc->[3] =~ s/^\s+//; # remove leading blanks
565 # if this is a 'nodx' node then ignore it
566 if ($badnode->in($pc->[5])) {
567 dbg($line) if isdbg('nologchan');
568 dbg("PCPROT: Bad Node, dropped");
572 # if this is a 'bad spotter' user then ignore it
573 my $nossid = $pc->[1];
574 $nossid =~ s/-\d+$//;
575 if ($badspotter->in($nossid)) {
576 dbg($line) if isdbg('nologchan');
577 dbg("PCPROT: Bad Spotter, dropped");
581 # ignore PC12s from origins that use PCxx protocol
582 my $oref = Route::get($origin);
583 if ($oref->do_pc9x) {
584 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
590 if (@bad = BadWords::check($pc->[3])) {
591 my $bw = join ', ', @bad;
592 dbg($line) if isdbg('nologchan');
593 dbg("PCPROT: Badwords: '$bw', dropped");
601 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
602 $self->send_chat(0, $line, @$pc[1..6]);
603 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
605 # ignore something that looks like a chat line coming in with sysop
606 # flag - this is a kludge...
607 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
608 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
612 # here's a bit of fun, convert incoming ann with a callsign in the first word
613 # or one saying 'to <call>' to a talk if we can route to the recipient
615 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
617 my $ref = Route::get($call);
619 $dxchan = $ref->dxchan;
620 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
627 $self->send_announce(0, $line, @$pc[1..6]);
629 $self->route($pc->[2], $line);
633 if (defined &Local::ann) {
636 $r = Local::ann($self, $line, @$pc[1..6]);
650 if (eph_dup($line, $eph_pc15_restime)) {
653 unless ($self->{isolate}) {
654 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
670 my $ncall = $pc->[1];
671 my $newline = "PC16^";
673 # dos I want users from this channel?
674 unless ($self->user->wantpc16) {
675 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
680 if ($ncall eq $main::mycall) {
681 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
686 $h = 1 if DXChannel::get($ncall);
687 if ($h && $self->{call} ne $ncall) {
688 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
692 if (eph_dup($line)) {
696 # isolate now means only accept stuff from this call only
697 if ($self->{isolate} && $ncall ne $self->{call}) {
698 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
702 my $parent = Route::Node::get($ncall);
705 $dxchan = $parent->dxchan;
706 if ($dxchan && $dxchan ne $self) {
707 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
711 # input filter if required
712 return unless $self->in_filter_route($parent);
714 $parent = Route::Node->new($ncall);
718 if ($parent->via_pc92) {
719 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
726 for ($i = 2; $i < $#$pc; $i++) {
727 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
728 next unless $call && $conf && defined $here && is_callsign($call);
729 next if $call eq $main::mycall;
731 eph_del_regex("^PC17\\^$call\\^$ncall");
733 $conf = $conf eq '*';
735 # reject this if we think it is a node already
736 my $r = Route::Node::get($call);
737 my $u = DXUser::get_current($call) unless $r;
738 if ($r || ($u && $u->is_node)) {
739 dbg("PCPROT: $call is a node") if isdbg('chanerr');
743 $r = Route::User::get($call);
744 my $flags = Route::here($here)|Route::conf($conf);
747 my $au = $r->addparent($parent);
748 if ($r->flags != $flags) {
752 push @rout, $r if $h && $au;
754 my @ans = $parent->add_user($call, $flags);
755 push @rout, @ans if $h && @ans;
758 # add this station to the user database, if required
759 my $user = DXUser::get_current($ncall);
760 $user = DXUser->new($call) unless $user;
761 $user->homenode($parent->call) if !$user->homenode;
762 $user->node($parent->call);
763 $user->lastin($main::systime) unless DXChannel::get($call);
766 # send info to all logged in thingies
767 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
768 $self->tell_buddies('loginb', $call, $ncall);
771 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
772 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
786 my $ncall = $pc->[2];
787 my $ucall = $pc->[1];
789 eph_del_regex("^PC16\\^$ncall.*$ucall");
791 # do I want users from this channel?
792 unless ($self->user->wantpc16) {
793 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
797 if ($ncall eq $main::mycall) {
798 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
802 # isolate now means only accept stuff from this call only
803 if ($self->{isolate} && $ncall ne $self->{call}) {
804 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
808 my $uref = Route::User::get($ucall);
810 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
813 my $parent = Route::Node::get($ncall);
815 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
819 $dxchan = DXChannel::get($ncall);
820 if ($dxchan && $dxchan ne $self) {
821 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
826 if ($parent->via_pc92) {
827 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
832 if (DXChannel::get($ucall)) {
833 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
837 # input filter if required and then remove user if present
838 # return unless $self->in_filter_route($parent);
839 $parent->del_user($uref);
841 # send info to all logged in thingies
842 my $user = DXUser::get_current($ncall);
843 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
844 $self->tell_buddies('logoutb', $ucall, $ncall);
846 if (eph_dup($line)) {
850 $self->route_pc17($origin, $line, $parent, $uref);
851 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
863 $self->state('init');
865 my $parent = Route::Node::get($self->{call});
867 my ($software, $version, $build) = (undef, 0, 0);
869 # record the type and version offered
870 if (($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
872 $version += 53 if $version < 6;
873 $self->{version} = $version;
874 $self->user->version($version);
875 $parent->version($version);
876 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
878 $build = 0 unless $build > 1;
879 $self->{build} = $build;
880 $self->user->build($build);
881 $parent->build($build);
882 dbg("$self->{call} = $software version $version build $build");
883 unless ($self->is_spider) {
884 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
885 $self->user->sort('S');
889 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
890 } elsif (($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
891 dbg("$self->{call} = $software version $version build $build");
892 $self->{version} = $version;
893 $self->user->version($version);
894 $parent->version($version);
895 $self->{build} = $build;
896 $self->user->build($build);
897 $parent->build($build);
898 unless ($self->is_arcluster) {
899 dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
900 $self->user->sort('R');
905 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
906 $self->version(50.0);
907 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
908 $self->user->version($self->version);
911 if ($pc->[1] =~ /CC\s*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
912 if ($self->{isolate}) {
913 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
914 } elsif (!$self->user->wantpc9x) {
915 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
917 $self->{do_pc9x} = 1;
918 dbg("$self->{call} Set do PC9x");
922 # first clear out any nodes on this dxchannel
923 my @rout = $parent->del_nodes;
924 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
925 $self->send_local_config();
933 my $homenode = shift;
935 # add this station to the user database, if required (don't remove SSID from nodes)
936 my $user = DXUser::get_current($call);
938 $user = DXUser->new($call);
939 $user->sort($type || 'U');
940 if ($user->is_node) {
941 $user->priv(1); # I have relented and defaulted nodes
942 $user->lockout(1) if $user->is_node;
944 $user->homenode($homenode) if $homenode;
945 $user->node($homenode);
948 $user->lastin($main::systime); # this make it last longer than just this invocation
949 $user->put; # just to make sure it gets written away!!!
950 dbg("DXProt: PC92 new user record for $call created");
953 # this is to fix a problem I introduced some build ago by using this function for users
954 # whereas it was only being used for nodes.
955 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
958 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
964 # incoming cluster list
974 my $newline = "PC19^";
977 my (@rout, @pc92out);
979 # first get the INTERFACE node
980 my $parent = Route::Node::get($self->{call});
982 dbg("PCPROT: my parent $self->{call} has disappeared");
991 # We are making a major change from now on. We are only going to accept
992 # PC19s from directly connected nodes. This means that we are probably
993 # going to throw away most of the data that we are being sent.
995 # The justification for this is that most of it is wrong or out of date
998 # From now on we are only going to believe PC92 data and locally connected
1001 for ($i = 1; $i < $#$pc-1; $i += 4) {
1002 my $here = $pc->[$i];
1003 my $call = uc $pc->[$i+1];
1004 my $conf = $pc->[$i+2];
1005 my $ver = $pc->[$i+3];
1006 next unless defined $here && defined $conf && is_callsign($call);
1008 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
1010 # check for sane parameters
1011 # $ver = 5000 if $ver eq '0000';
1012 next unless $ver && $ver =~ /^\d+$/;
1013 next if $ver < 5000; # only works with version 5 software
1014 next if length $call < 3; # min 3 letter callsigns
1015 next if $call eq $main::mycall || $call eq $main::myalias;
1017 # check that this PC19 isn't trying to alter the wrong dxchan
1019 my $dxchan = DXChannel::get($call);
1021 if ($dxchan == $self) {
1024 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
1029 # isolate now means only accept stuff from this call only
1030 if ($self->{isolate} && $call ne $self->{call}) {
1031 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
1035 my $user = check_add_user($call, 'A');
1037 # if (eph_dup($genline)) {
1038 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
1044 if ($parent->via_pc92) {
1045 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1050 my $r = Route::Node::get($call);
1051 my $flags = Route::here($here)|Route::conf($conf);
1053 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1056 if ($call ne $parent->call) {
1057 if ($self->in_filter_route($r)) {
1058 $ar = $parent->add($call, $ver, $flags);
1059 # push @rout, $ar if $ar;
1064 if ($r->version ne $ver || $r->flags != $flags) {
1070 if ($call eq $self->{call} || $user->wantroutepc19) {
1071 my $new = Route->new($call); # throw away
1072 if ($self->in_filter_route($new)) {
1073 my $ar = $parent->add($call, $ver, $flags);
1074 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1075 push @rout, $ar if $ar;
1076 push @pc92out, $r if $h;
1083 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1084 my $mref = DXMsg::get_busy($call);
1085 $mref->stop_msg($call) if $mref;
1087 $user->lastin($main::systime) unless DXChannel::get($call);
1091 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1092 # but remember there will only be one (pair) these because any extras will be
1095 # $self->route_pc21($self->{call}, $line, @rout);
1096 $self->route_pc19($self->{call}, $line, @rout);
1098 if (@pc92out && !$pc92_slug_changes) {
1099 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1103 # send local configuration
1112 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1113 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1114 $self->{do_pc9x} = 0;
1116 $self->send_local_config;
1117 $self->send(pc22());
1118 $self->state('normal');
1119 $self->{lastping} = 0;
1120 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1123 # delete a cluster from the list
1125 # This should never occur for directly connected nodes.
1135 my $call = uc $pc->[1];
1137 eph_del_regex("^PC1[679].*$call");
1139 # if I get a PC21 from the same callsign as self then ignore it
1140 if ($call eq $self->{call}) {
1141 dbg("PCPROT: self referencing PC21 from $self->{call}");
1145 # for the above reason and also because of the check for PC21s coming
1146 # in for self->call from outside being ignored further down
1147 # we don't need any isolation code here, because we will never
1148 # act on a PC21 with self->call in it.
1150 my $parent = Route::Node::get($self->{call});
1152 dbg("PCPROT: my parent $self->{call} has disappeared");
1159 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1160 my $node = Route::Node::get($call);
1163 if ($node->via_pc92) {
1164 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1168 my $dxchan = DXChannel::get($call);
1169 if ($dxchan && $dxchan != $self) {
1170 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1175 return unless $self->in_filter_route($node);
1177 # routing objects, force a PC21 if it is local
1178 push @rout, $node->del($parent);
1179 push @rout, $call if $dxchan && @rout == 0;
1182 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1186 if (eph_dup($line)) {
1191 $self->route_pc21($origin, $line, @rout);
1192 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1205 if ($self->{do_pc9x}) {
1206 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1207 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1208 $self->{do_pc9x} = 0;
1211 $self->{lastping} = 0;
1212 $self->state('normal');
1213 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1225 # route foreign' pc27s
1227 if ($pc->[8] ne $main::mycall) {
1228 $self->route($pc->[8], $line);
1235 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1236 my $sfi = unpad($pc->[3]);
1237 my $k = unpad($pc->[4]);
1238 my $i = unpad($pc->[5]);
1239 my ($r) = $pc->[6] =~ /R=(\d+)/;
1241 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1242 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1246 # global wwv filtering on INPUT
1247 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1248 if ($self->{inwwvfilter}) {
1249 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1251 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1255 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1256 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1257 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1261 # note this only takes the first one it gets
1262 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1263 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1265 if (defined &Local::wwv) {
1268 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1273 # DON'T be silly and send on PC27s!
1274 return if $pcno == 27;
1276 # broadcast to the eager world
1277 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1289 my $call = uc $pc->[1];
1291 $nref = Route::Node::get($call);
1292 $uref = Route::User::get($call);
1293 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1295 if (eph_dup($line)) {
1299 $nref->here($pc->[2]) if $nref;
1300 $uref->here($pc->[2]) if $uref;
1301 my $ref = $nref || $uref;
1302 return unless $self->in_filter_route($ref);
1304 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1316 if ($pc->[1] ne $main::mycall) {
1317 $self->route($pc->[1], $line);
1320 if ($pc->[2] eq $main::mycall) {
1321 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1325 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1329 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1332 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1338 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1341 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1346 sub handle_26 {goto &handle_11}
1347 sub handle_27 {goto &handle_23}
1349 # mail/file handling
1358 if ($pc->[1] eq $main::mycall) {
1360 my $sub = "DXMsg::handle_$pcno";
1363 $self->route($pc->[1], $line) unless $self->is_clx;
1367 sub handle_29 {goto &handle_28}
1368 sub handle_30 {goto &handle_28}
1369 sub handle_31 {goto &handle_28}
1370 sub handle_32 {goto &handle_28}
1371 sub handle_33 {goto &handle_28}
1381 if (eph_dup($line, $eph_pc34_restime)) {
1384 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1388 # remote command replies
1397 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1398 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1401 sub handle_36 {goto &handle_34}
1412 if ($pc->[1] eq $main::mycall) {
1414 my $sub = "DXDb::handle_$pcno";
1417 $self->route($pc->[1], $line) unless $self->is_clx;
1421 # node connected list from neighbour
1431 # incoming disconnect
1440 if ($pc->[1] eq $self->{call}) {
1441 $self->disconnect(1);
1443 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1447 sub handle_40 {goto &handle_28}
1458 my $call = $pc->[1];
1459 my $sort = $pc->[2];
1462 my $l = "PC41^$call^$sort";
1463 if (eph_dup($l, $eph_info_restime)) {
1467 # input filter if required
1468 # my $ref = Route::get($call) || Route->new($call);
1469 # return unless $self->in_filter_route($ref);
1471 if ($val eq $sort || $val =~ /^\s*$/) {
1472 dbg('PCPROT: invalid value') if isdbg('chanerr');
1476 if ($call eq $main::mycall || $call eq $main::myalias) {
1477 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1480 my $chan = DXChannel::get($call);
1482 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1486 # add this station to the user database, if required
1487 my $user = DXUser::get_current($call);
1488 $user = DXUser->new($call) unless $user;
1491 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1492 dbg("PCPROT: invalid name") if isdbg('chanerr');
1496 } elsif ($sort == 2) {
1498 } elsif ($sort == 3) {
1499 if (is_latlong($val)) {
1500 my ($lat, $long) = DXBearing::stoll($val);
1501 $user->lat($lat) if $lat;
1502 $user->long($long) if $long;
1503 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1505 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1508 } elsif ($sort == 4) {
1509 $user->homenode($val);
1510 } elsif ($sort == 5) {
1511 if (is_qra(uc $val)) {
1512 my ($lat, $long) = DXBearing::qratoll(uc $val);
1513 $user->lat($lat) if $lat && !$user->lat;
1514 $user->long($long) if $long && !$user->long;
1515 $user->qra(uc $val);
1517 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1521 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1524 unless ($self->{isolate}) {
1525 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1528 # perhaps this IS what we want after all
1529 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1532 sub handle_42 {goto &handle_28}
1536 sub handle_44 {goto &handle_37}
1537 sub handle_45 {goto &handle_37}
1538 sub handle_46 {goto &handle_37}
1539 sub handle_47 {goto &handle_37}
1540 sub handle_48 {goto &handle_37}
1542 # message and database
1551 if (eph_dup($line)) {
1555 if ($pc->[1] eq $main::mycall) {
1556 DXMsg::handle_49($self, @$pc);
1558 $self->route($pc->[1], $line) unless $self->is_clx;
1562 # keep alive/user list
1571 return if (eph_dup($line));
1573 my $call = $pc->[1];
1575 my $node = Route::Node::get($call);
1577 return unless $node->call eq $self->{call};
1578 $node->usercount($pc->[2]) unless $node->users;
1580 $node->PC92C_dxchan($self->call, $pc->[-1]);
1582 # input filter if required
1583 # return unless $self->in_filter_route($node);
1585 unless ($self->{isolate}) {
1586 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1588 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1592 # incoming ping requests/answers
1602 my $from = $pc->[2];
1603 my $flag = $pc->[3];
1605 if ($to eq $main::myalias) {
1606 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1611 if ($to eq $main::mycall) {
1613 $self->send(pc51($from, $to, '0'));
1615 DXXml::Ping::handle_ping_reply($self, $from);
1618 if (eph_dup($line)) {
1621 # route down an appropriate thingy
1622 $self->route($to, $line);
1626 sub handle_61 { goto &handle_11; }
1628 # dunno but route it
1637 my $call = $pc->[1];
1638 if ($call ne $main::mycall) {
1639 $self->route($call, $line);
1652 my $call = $pc->[1];
1655 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1656 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1657 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1660 $pc = [ map { unpad($_) } @$pc ];
1662 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1666 my $wcy = WCY::update($d, @$pc[2..12]);
1667 dbg("WCY: <$pc->[2]> K=$pc->[5] expK=$pc->[6] A=$pc->[4] R=$pc->[7] SFI=$pc->[3] SA=$pc->[8] GMF=$pc->[9] Au=$pc->[10] $pc->[11]\@$pc->[12] route: $origin") if isdbg('progress');
1669 if (defined &Local::wcy) {
1672 $rep = Local::wcy($self, @$pc[1..12]);
1677 # broadcast to the eager world
1678 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1681 # remote commands (incoming)
1690 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1693 # remote command replies
1702 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1705 # decode a pc92 call: flag call : version : build
1706 sub _decode_pc92_call
1709 my @part = split /:/, $icall;
1710 my ($flag, $call) = unpack "A A*", $part[0];
1711 unless (defined $flag && $flag ge '0' && $flag le '7') {
1712 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1715 unless ($call && is_callsign($call)) {
1716 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1719 my $is_node = $flag & 4;
1720 my $is_extnode = $flag & 2;
1721 my $here = $flag & 1;
1722 my $version = $part[1] || 0;
1723 my $build = $part[2] || 0;
1724 my $ip = $part[3] || '';
1726 # remember that, at this stage, IPV6 addresses have : replaced by ,
1727 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1731 $version =~ s/\D//g;
1732 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1735 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1738 $ip =~ s/^::ffff://i;
1739 $ip = '' unless is_ipaddr($ip);
1741 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1742 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1745 # decode a pc92 call: flag call : version : build
1746 sub _encode_pc92_call
1750 # plain call or value
1751 return $ref unless ref $ref;
1753 my $ext = shift || 0;
1755 my $call = $ref->call;
1757 $flag |= $ref->here ? 1 : 0;
1758 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1760 my $dxchan = DXChannel::get($call);
1761 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1762 if (($ext & 1) && $ref->version) {
1763 my $version = $ref->version || 1.0;
1764 $version = $version * 100 + 5300 if $version < 50;
1765 $extra .= ":" . $version;
1768 if (($ext & 2) && $ref->ip) {
1771 $extra .= ':' . $ip;
1774 return "$flag$call$extra";
1787 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1790 # remove spurious IPV6 prefix on IPV4 addresses
1795 my $ncall = $parent->call;
1796 if ($ncall ne $call) {
1800 # normalise call, delete any unnormalised calls in the users file.
1801 # then ignore this thingy
1802 my $normcall = normalise_call($call);
1803 if ($normcall ne $call) {
1804 next if DXChannel::get($call);
1805 $user = DXUser::get($call);
1806 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1807 $user->del if $user;
1808 $call = $normcall; # this is safe because a route add will ignore duplicates
1812 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1813 $user = check_add_user($call, 'A');
1814 @rout = $parent->add($call, $version, Route::here($here), $ip);
1815 $r = Route::Node::get($call);
1816 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1817 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1818 my $old = $user->sort;
1819 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1821 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1822 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1823 unless ($version > 0 && $build == 0) {
1826 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1830 $r->version($user->version) if $user->version;
1831 $r->build($user->build) if $user->build;
1832 $r->K(1) if $user->K;
1834 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1835 $user = check_add_user($call, 'U', $parent->call);
1836 @rout = $parent->add_user($call, Route::here($here), $ip);
1837 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1838 $r = Route::User::get($call);
1842 Log('DXProt', "PC92A $call -> $ip on $ncall");
1844 if ($pc92_slug_changes && $parent == $main::routeroot) {
1845 $things_add{$call} = Route::get($call);
1846 delete $things_del{$call};
1848 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1850 dbgprintring(10) if isdbg('nologchan');
1851 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1863 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1868 $ref = Route::Node::get($call);
1869 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1870 @rout = $ref->del($parent) if $ref;
1872 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1873 $ref = Route::User::get($call);
1875 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1876 @rout = $parent->del_user($ref);
1879 if ($pc92_slug_changes && $parent == $main::routeroot) {
1880 $things_del{$call} = $ref unless exists $things_add{$call};
1881 delete $things_add{$call};
1887 # this will only happen if we are slugging changes and
1888 # there are some changes to be sent, it will create an add or a delete
1890 sub gen_pc92_changes
1892 my @add = values %things_add;
1893 my @del = values %things_del;
1894 return (\@add, \@del);
1897 sub clear_pc92_changes
1899 %things_add = %things_del = ();
1900 $last_pc92_slug = $main::systime;
1909 return $_last_pc9x_id;
1914 if (!$_last_time || $_last_time != $main::systime) {
1915 $_last_time = $main::systime;
1917 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1920 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1931 # check that the time is between 0 >= $t < 86400
1932 unless ($t >= 0 && $t < 86400) {
1933 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1937 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1938 my $now = $main::systime - $main::systime_daystart ;
1939 my $diff = abs($now - $t);
1940 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1941 my $c = ref $call ? $call->call : $call;
1942 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1946 my $parent = ref $call ? $call : Route::Node::get($call);
1948 # we only do this for external calls whose routing table
1949 # record come and go. The reference for mycall is permanent
1950 # and not that frequently used, it also never times out, so
1951 # the id on it is completely unreliable. Besides, only commands
1952 # originating on this box will go through this code...
1953 if ($parent->call ne $main::mycall) {
1954 my $lastid = $parent->lastid;
1955 if (defined $lastid) {
1957 # note that this is where we determine whether this pc9x has come in yesterday
1958 # but is still greater (modulo 86400) than the lastid or is simply an old
1959 # duplicate sentence. To determine this we need to do some module 86400
1960 # arithmetic. High numbers mean that this is an old duplicate sentence,
1961 # low numbers that it is a new sentence.
1963 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1964 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1965 # 86378 respectively in the calculation below).
1967 if ($t+86400-$lastid > $pc9x_past_age) {
1968 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1971 } elsif ($t == $lastid) {
1972 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1975 # check that if we have a low number in lastid that yesterday's numbers
1976 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1977 if ($lastid+86400-$t < $pc9x_past_age) {
1978 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1985 $parent = Route::Node->new($call);
1987 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1990 if (isdbg('pc92dedupe')) {
1991 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1992 my $val = $parent->{lastid};
1993 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1994 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1996 $parent->lastid($t);
2001 sub pc92_handle_first_slot
2008 my $oparent = $parent;
2012 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
2013 if ($call && $is_node) {
2014 if ($call eq $main::mycall) {
2015 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
2018 if ($call eq $main::myalias) {
2019 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
2022 # this is only accepted from my "self".
2023 # this also kills configs from PC92 nodes with external PC19 nodes that are also
2024 # locally connected. Local nodes always take precedence. But we remember the lastid
2025 # to try to reduce the number of dupe PC92s for this external node.
2026 if (DXChannel::get($call) && $call ne $self->{call}) {
2027 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
2028 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
2032 # reparent to external node (note that we must have received a 'C' or 'A' record
2033 # from the true parent node for this external before we get one for the this node
2034 unless ($parent = Route::Node::get($call)) {
2035 if ($is_extnode && $oparent) {
2036 @radd = _add_thingy($oparent, $slot, $self, $hops);
2039 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
2043 $parent = check_pc9x_t($call, $t, 92) || return;
2044 $parent->via_pc92(1);
2045 $parent->PC92C_dxchan($self->{call}, $hops);
2048 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2051 $parent->here(Route::here($here));
2052 $parent->version($version || $pc19_version) if $version;
2053 $parent->build($build) if $build;
2054 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2055 return ($parent, @radd);
2058 # DXSpider routing entries
2069 my $pcall = $pc->[1];
2071 my $sort = $pc->[3];
2072 my $hops = $pc->[-1];
2074 # this catches loops of A/Ds
2075 # if (eph_dup($line, $pc9x_dupe_age)) {
2079 if ($pcall eq $main::mycall) {
2080 LogDbg('err', "PCPROT: looped back, ignored");
2084 if ($pcall eq $main::myalias) {
2085 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2089 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2090 if ($self->{isolate}) {
2091 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2093 } elsif (!$self->user->wantpc9x) {
2094 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2097 $self->state('init92');
2098 $self->{do_pc9x} = 1;
2099 dbg("DXPROT: Do pc9x set on $pcall");
2102 unless ($self->{do_pc9x}) {
2103 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2107 # don't create routing entries for D records that don't already exist
2108 # this is what causes all those PC92 loops!
2109 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2110 my $oparent = $parent;
2112 $parent->do_pc9x(1);
2113 $parent->via_pc92(1);
2115 if ($sort eq 'F' || $sort eq 'R') {
2117 # this is the route finding section
2118 # here is where the consequences of the 'find' command
2121 my $from = $pc->[4];
2122 my $target = $pc->[5];
2128 if ($ref = DXChannel::get($target)) {
2129 $flag = 1; # we are directly connected
2131 $ref = Route::get($target);
2132 $dxchan = $ref->dxchan;
2135 if ($ref && $flag && $dxchan) {
2136 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2139 } elsif ($sort eq 'R') {
2140 if (my $dxchan = DXChannel::get($from)) {
2141 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2143 my $ref = Route::get($from);
2145 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2147 $_->send($line) for @dxchan;
2149 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2152 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2158 } elsif ($sort eq 'K') {
2159 $pc92Kin += length $line;
2161 # remember the last channel we arrived on
2162 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2164 my @ent = _decode_pc92_call($pc->[4]);
2169 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2170 return unless $parent; # dupe
2172 push @radd, $add if $add;
2174 my $call = $parent->call;
2175 my $version = $ent[4] || 0;
2176 my $build = $ent[5] || 0;
2178 my $oldbuild = $parent->build || 0;
2179 my $oldversion = $parent->version || 0;
2180 my $user = check_add_user($parent->call, 'S');
2181 my $oldsort = $user->sort // '';
2183 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2185 if (is_numeric($version) || is_numeric($build)) {
2187 if (($oldversion ne $version || $build ne $oldbuild)) {
2188 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2189 $user->version($parent->version($version));
2190 $user->build($parent->build($build));
2193 if ($oldsort ne 'S') {
2194 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2199 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2203 $user->put if $changed;
2204 $parent->K(1); # mark this as come in on a K
2206 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2208 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2210 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2212 $pc92Ain += length $line if $sort eq 'A';
2213 $pc92Cin += length $line if $sort eq 'C';
2214 $pc92Din += length $line if $sort eq 'D';
2216 # remember the last channel we arrived on
2217 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2219 # this is the main route section
2220 # here is where all the routes are created and destroyed
2222 # cope with missing duplicate node calls in the first slot
2223 my $me = $pc->[4] || '';
2224 $me ||= _encode_pc92_call($parent) unless $me ;
2226 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2230 # look at the first one which will always be a node of some sort
2231 # except in the case of 'A' or 'D' in which the $pcall is used
2232 # otherwise use the node call and update any information
2233 # that needs to be done.
2236 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2237 return unless $parent; # dupe
2240 push @radd, $add if $add;
2243 # do a pass through removing any references to either mycall
2247 next unless $_ && @$_;
2248 if ($_->[0] eq $main::mycall) {
2249 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2252 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2253 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2262 push @radd, _add_thingy($parent, $_, $self, $hops);
2264 } elsif ($sort eq 'D') {
2266 push @rdel, _del_thingy($parent, $_, $self);
2268 } elsif ($sort eq 'C') {
2269 my (@nodes, @users);
2271 # we reset obscounts on config records as well as K records
2273 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2276 foreach my $r (@nent) {
2277 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2280 push @nodes, $r->[0];
2282 push @users, $r->[0];
2285 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2289 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2292 foreach my $r (@nent) {
2295 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2299 foreach my $r (@$dnodes) {
2300 push @rdel,_del_thingy($parent, [$r, 1], $self);
2302 foreach my $r (@$dusers) {
2303 push @rdel,_del_thingy($parent, [$r, 0], $self);
2306 # remember this last PC92C for rebroadcast on demand
2307 $parent->last_PC92C($line);
2309 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2313 foreach my $r (@rdel) {
2316 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2317 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2319 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2320 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2321 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2322 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2323 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2326 # broadcast it if we get here (but not if it's an A or D record and pc92_ad_enabled isn't set;
2327 if ($sort eq 'A' || $sort eq 'D') {
2328 return unless $pc92_ad_enabled;
2330 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2333 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2334 # might be on two or more nodes at the same time or that there may be more than
2335 # one equal distance neighbour to a node.
2337 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2338 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2339 # each and then combined to give a set of dxchans to send the PC9x record down
2341 sub find_pc9x_routes
2344 my $ref = Route::get($to);
2348 if ($ref->isa('Route::User')) {
2349 my $dxchan = DXChannel::get($to);
2350 push @parent, $to if $dxchan;
2351 push @parent, $ref->parents;
2355 foreach my $p (@parent) {
2357 my @routes = Route::findroutes($p);
2358 foreach my $r (@routes) {
2359 $lasthops = $r->[0] unless defined $lasthops;
2360 if ($r->[0] == $lasthops) {
2361 $cand{$r->[1]->call} = $r->[1];
2367 return values %cand;
2378 # $self->{do_pc9x} ||= 1;
2380 my $pcall = $pc->[1]; # this is now checked earlier
2382 # remember that we are converting PC10->PC93 and self will be $main::me if it
2384 unless ($self->{do_pc9x}) {
2385 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2390 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2392 my $to = uc $pc->[3];
2393 my $from = uc $pc->[4];
2394 my $via = uc $pc->[5];
2395 my $text = $pc->[6];
2396 my $onode = uc $pc->[7];
2397 my $ipaddr = $pc->[8];
2399 $onode = undef unless $onode && is_callsign($onode);
2401 $ipaddr = undef unless $ipaddr && is_ipaddr($ipaddr);
2403 # this is catch loops caused by bad software ...
2404 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2408 if (isdbg('progress')) {
2409 my $vs = $via ne '*' ? " via $via" : '';
2410 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2414 # if this is a 'bad spotter' user then ignore it
2416 $nossid =~ s/-\d+$//;
2417 if ($badspotter->in($nossid)) {
2418 dbg($line) if isdbg('nologchan');
2419 dbg("PCPROT: Bad Spotter, dropped");
2423 # ignore PC93 coming in from outside this node with a target of local
2424 if ($to eq 'LOCAL' && $self != $main::me) {
2425 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2429 # will we allow it at all?
2432 if (@bad = BadWords::check($text)) {
2433 my $bw = join ', ', @bad;
2434 dbg($line) if isdbg('nologchan');
2435 dbg("PCPROT: Badwords: '$bw', dropped");
2440 $self->populate_routing_table($onode, $from, $ipaddr);
2442 # if it is routeable then then treat it like a talk
2443 my $ref = Route::get($to);
2447 # convert to PC10 or local talks where appropriate
2448 # PC93 capable nodes of the same hop count all get a copy
2449 # if there is a PC10 node then it will get a copy and that
2450 # will be it. Hopefully such a node will not figure highly
2451 # in the route list, unless it is local, 'cos it don't issue PC92s!
2452 # note that both local and PC93s at the same time are possible if the
2453 # user on more than one node.
2454 my @routes = find_pc9x_routes($to);
2456 foreach $dxchan (@routes) {
2457 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2458 if ($dxchan->{do_pc9x}) {
2459 $dxchan->send($line);
2461 $dxchan->talk($from, $to, $via, $text, $onode);
2464 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2469 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2471 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2472 my $wx = $to eq 'WX' ? '1' : '0';
2473 my $local = $via eq 'LOCAL' ? '*' : $via;
2475 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2476 return if $via eq 'LOCAL';
2477 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2478 # chat messages really only locally connected users
2479 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2482 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2483 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2486 # if get here then rebroadcast the thing with its Hop count decremented (if
2487 # there is one). If it has a hop count and it decrements to zero then don't
2490 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2502 unless (eph_dup($line)) {
2504 my $pcall = $pc->[1];
2505 unless (is_callsign($pcall)) {
2506 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2510 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2511 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2513 unless ($self->{isolate}) {
2514 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
2520 # does what it says on the tin..
2521 sub populate_routing_table
2523 my ($self, $node, $user, $ip) = @_;
2525 my $rn = Route::Node::get($node);
2527 $rn = Route::Node->new($node);
2528 dbg("ROUTE $self->{call}: ADD NEW node: $node") if isdbg('pc11');
2532 if ($user ne $node) {
2533 $ru = Route::User::get($user);
2535 $rn->add_user($user, 0, undef);
2536 dbg("ROUTE $self->{call}: ADD NEW user: $user -> $node") if isdbg('pc11');
2538 $ru = Route::User::get($user);
2541 # Add/Change any IP address info
2543 # as we have a route to a user, if it (or the node) does not exist then create them
2544 # link the user to the node if not already done.
2545 # then add or alter the IP address
2546 if ($ip && is_ipaddr($ip)) {
2549 if ($ru->ip ne $new) {
2553 dbg("ROUTE $self->{call}: ALTER IP node: $node user: $user old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
2556 dbg("ROUTE $self->{call}: NEW IP node: $node user: $user IP: '$new'") if isdbg('pc11');
2560 dbg("ROUTE $self->{call}: ADD Failed for node $node user $user") if isdbg('pc11');