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
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 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
147 my %pc11_saved; # delayed PC11s
148 my $pc11_rx; # no of pc11 rxed
149 my $pc61_rx; # no of pc61 rxed
150 my $pc11_to_61; # no of 'better' pc61, that replaced stored waiting pc11
151 my $rpc11_to_61; # no of pc11s 'promoted' to pc61 by IP captured in routing table
161 my $recurse = shift || 0;
163 # route 'foreign' pc26s
165 if ($pc->[7] ne $main::mycall) {
166 $self->route($pc->[7], $line);
171 dbg("---") if isdbg("pc11") || isdbg("pc61");
172 dbg("INPUT $self->{call}: $line via: $origin recurse: $recurse") if isdbg("pc11") || isdbg("pc61");
174 # my ($hops) = $pc->[8] =~ /^H(\d+)/;
176 # is the spotted callsign blank? This should really be trapped earlier but it
177 # could break other protocol sentences. Also check for lower case characters.
178 if ($pc->[2] =~ /^\s*$/) {
179 dbg($line) if isdbg('nologchan');
180 dbg("PCPROT: blank callsign, dropped");
183 if ($pc->[2] =~ /[a-z]/) {
184 dbg($line) if isdbg('nologchan');
185 dbg("PCPROT: lowercase characters, dropped");
190 # if this is a 'nodx' node then ignore it
191 if ($badnode->in($pc->[7])) {
192 dbg($line) if isdbg('nologchan');
193 dbg("PCPROT: Bad Node $pc->[7], dropped");
197 # convert the date to a unix date
198 my $d = cltounix($pc->[3], $pc->[4]);
199 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
200 if (!$d || (($pcno == 11 || $pcno == 61) && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
201 dbg($line) if isdbg('nologchan');
202 dbg("PCPROT: Spot ignored, invalid date or out of range ($pc->[3] $pc->[4])\n");
207 if ($baddx->in($pc->[2])) {
208 dbg("PCPROT: Bad DX spot '$pc->[2]', ignored");
209 dbg($line) if isdbg('nologchan');
213 # is it claiming to be BUST(ed)
214 $pc->[5] =~ s/^\s+//; # take any leading blanks off
215 $pc->[2] = unpad($pc->[2]); # take off leading and trailing blanks from spotted callsign
216 if ($pc->[2] =~ /BUST\w*$/) {
217 dbg($line) if isdbg('nologchan');
218 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
222 my $nossid = $pc->[6];
223 $nossid =~ s/-\d+$//;
225 my @spot = Spot::prepare($pc->[1], $pc->[2], $d, $pc->[5], $nossid, $pc->[7], $pc->[8]);
229 # $f2 = date in unix format
232 # $f5 = spotted dxcc country
233 # $f6 = spotter dxcc country
236 # $f9 = spotted cq zone
238 # $f11 = spotter cq zone
239 # $f12 = spotted us state
240 # $f13 = spotter us state
244 # is this is a 'bad spotter' or an unknown user then ignore it.
245 if ($badspotter->in($nossid)) {
246 dbg($line) if isdbg('nologchan');
247 dbg("PCPROT: Bad Spotter $pc->[6], dropped");
251 # global spot filtering on INPUT
252 if ($self->{inspotsfilter}) {
253 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
255 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
260 # Populate the routing table
261 my $rn = Route::Node::get($pc->[7]);
263 $rn = Route::Node->new($pc->[7]);
264 dbg("ROUTE $self->{call}: ADD NEW node: $pc->[7]") if isdbg('pc11');
266 my $r = Route::User::get($pc->[6]);
268 $rn->add_user($pc->[6], 0, undef);
269 dbg("ROUTE $self->{call}: ADD NEW user: $pc->[6] -> $pc->[7]") if isdbg('pc11');
270 $r = Route::User::get($pc->[6]);
273 # Add/Change any IP address info
276 # as we have a route to a user, if it (or the node) does not exist then create them
277 # link the user to the node if not already done.
278 # then add or alter the IP address
282 if ($r->ip ne $new) {
286 dbg("ROUTE $self->{call}: ALTER IP node: $pc->[7] user: $pc->[6] old IP: '$old'-> new IP: '$new'") if isdbg('pc11');
289 dbg("ROUTE $self->{call}: NEW IP node: $pc->[7] user: $pc->[6] IP: '$new'") if isdbg('pc11');
293 dbg("ROUTE $self->{call}: ADD Failed for node $pc->[7] user $pc->[6]") if isdbg('pc11');
296 dbg("PCPROT: ROUTE $self->{call} NO IP ADDRESS in '$line'!");
300 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
301 my $key = join '|', @spot[0..2,4,7]; # not including text
307 if ($pc11_saved{$key}) {
308 # before we promote because it's a better pc61, check that it's not a dupe (but don't insert it).
309 if (Spot::dup_find(@spot[0..4,7])) {
310 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
311 delete $pc11_saved{$key};
317 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
318 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");
320 delete $pc11_saved{$key}; # because we have promoted it, no longer needed.
322 # so unlike the promotion by route, there is a stored, but uncounted PC11
323 # which have discarded. But we have chosen to use better PC61 that's just come in
324 # so we allow the PC61 to be counted later, but count the now discarded PC11
325 # because it *did* come in.
332 # if this fires then we have already had one or more PC11s but no PC61 for this spot
333 if ($pc11_saved{$key}) {
334 dbg("DUPE $self->{call} $pc->[0] key: $key is saved, ignored") if isdbg("pc11");
335 return; # because it's a dup
338 # before we promote by route, check that it's not been preceded by a previous PC61
339 if (Spot::dup_find(@spot[0..4,7])) {
340 my $s = exists $pc11_saved{$key} ? " stored $key removed" : "";
341 dbg("PCPROT: Duplicate Spot $self->{call}: PC11$s, recurse: $recurse, ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
342 delete $pc11_saved{$key};
347 # If we have an ip address we can promote by route
352 $pc->[8] = $spot[14] = $r->ip;
354 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
355 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");
356 $line = join '^', @$pc, $hops, '~';
358 # update the stats (NOTE, thie record was a PC11, it has now become a PC61
359 # this is NOT the same choosing a better PC61, that is a separate record.
360 ++$pc11_rx; # 'cos we received as a PC11 it and it won't be a pc11 anymore
361 --$pc61_rx; # 'cos we'll increment it later as it's now a pc61, no double counting
363 # dbg("CHANGED saved key: $key PC11 line to $line") if isdbg('pc11');
364 delete $pc11_saved{$key};
367 # if it is STILL (despite all efforts to change it) a PC11
368 # save it and wait - it will be called from pc11_process
370 $pc11_saved{$key} = [$main::systime, $self, $pcno, $line, $origin, $pc];
371 dbg("WAITING $self->{call}: NEW $pc->[0] spot $key waiting for a better offer") if isdbg("pc11");
377 # this goes after the input filtering, but before the add
378 # so that if it is input filtered, it isn't added to the dup
379 # list. This allows it to come in from a "legitimate" source
381 ## NOTE: this is where we insert the spot into the DXDupe cache
383 if (Spot::dup(@spot[0..4,7])) {
384 dbg("PCPROT: Duplicate Spot $self->{call}: $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot') || isdbg('pc11');
388 dbg("PROCESSING $self->{call}: $pc->[0] key: $key") if isdbg('pc11');
396 # we check IP addresses for PC61 - this will also dedupe PC11 promotions
397 if (@$pc > 8 && is_ipaddr($pc->[8])) {
401 if (DXCIDR::find($ip)) {
402 dbg($line) if isdbg('nologchan');
403 dbg("PCPROT: PC61 $ip in badip list, dropped");
408 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
409 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
410 # to be current once we have seen the first PC92C from that node.
412 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
415 my $nroute = Route::Node::get($pc->[7]);
416 my $uroute = Route::Node::get($pc->[6]);
417 my $local = DXChannel::get($pc->[7]);
419 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
421 my $ip = $pcno == 61 ? $pc->[8] : '';
422 # $s .= "User $pc->[6] not logged in, " unless $uroute;
423 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
424 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
426 my $action = $senderverify > 1 ? ", DUMPED" : '';
428 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
429 return unless $senderverify < 2;
434 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
435 # from other connected nodes cause
438 if (@bad = BadWords::check($pc->[5])) {
439 my $bw = join ', ', @bad;
440 dbg($line) if isdbg('nologchan');
441 dbg("PCPROT: Badwords: '$bw', dropped");
451 $ip ||= $spot[14] if exists $spot[14];
452 if (isdbg('progress')) {
453 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
455 my $d = ztime($spot[2]);
456 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
457 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
458 $s .= " route: $origin";
463 # @spot at this point contains:-
464 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
465 # then spotted itu, spotted cq, spotters itu, spotters cq
466 # you should be able to route on any of these
469 # fix up qra locators of known users
470 my $user = DXUser::get_current($spot[4]);
472 my $qra = $user->qra;
473 unless ($qra && is_qra($qra)) {
474 my $lat = $user->lat;
475 my $long = $user->long;
476 if (defined $lat && defined $long) {
477 $user->qra(DXBearing::lltoqra($lat, $long));
482 # send a remote command to a distant cluster if it is visible and there is no
483 # qra locator and we havn't done it for a month.
485 unless ($user->qra) {
487 my $to = $user->homenode;
488 my $last = $user->lastoper || 0;
489 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
490 my $cmd = "forward/opernam $spot[4]";
491 # send the rcmd but we aren't interested in the replies...
492 my $dxchan = $node->dxchan;
493 if ($dxchan && $dxchan->is_clx) {
494 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
496 route(undef, $to, pc34($main::mycall, $to, $cmd));
498 if ($to ne $origin) {
500 $node = Route::Node::get($to);
502 $dxchan = $node->dxchan;
503 if ($dxchan && $dxchan->is_clx) {
504 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
506 route(undef, $to, pc34($main::mycall, $to, $cmd));
510 $user->lastoper($main::systime);
517 if (defined &Local::spot) {
520 $r = Local::spot($self, @spot);
525 # DON'T be silly and send on PC26s!
526 return if $pcno == 26;
528 # send out the filtered spots
529 send_dx_spot($self, $line, @spot) if @spot;
531 # cancel any recursion as we have now processed it
532 my $count = $pc11_to_61+$rpc11_to_61;
533 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
534 my $pc11_61 = $pc11_rx ? ($count * 100) / $pc11_rx : 0;
535 my $data = "$pc->[0] key: $key";
536 my $stats = sprintf "pc11: $pc11_rx pc61: $pc61_rx pc11%%: %0.1f%% pc11->pc61: $count(%0.1f%%)", $percent, $pc11_61;
538 if ($pc11_saved{$key}) {
539 dbg("END $self->{call}: RECURSED $data removed and finished $stats") if isdbg('pc11');
540 delete $pc11_saved{$key};
542 dbg("END $self->{call}: RECURSED NO KEY finished $stats") if isdbg('pc11');
546 dbg("END $self->{call}: NORMAL $data finished $stats") if isdbg('pc11');
550 # used to kick outstanding PC11 if required
553 foreach my $key (keys %pc11_saved) {
554 my $r = $pc11_saved{$key};
555 if ($main::systime > $r->[0] + $pc11_dwell_time) {
556 dbg("---") if isdbg("pc11");
557 dbg("RECURSE $r->[1]->{call}: PC11 spot $key timed out waiting, resend") if isdbg("pc11");
559 delete $pc11_saved{$key};
560 $self->handle_11(@$r[2..5], 1);
565 # return the pc11 / pc61 / promotions data
566 sub get_pc11_61_stats
568 my $promotions = $pc11_to_61+$rpc11_to_61;
569 my $percent = ($pc11_rx + $pc61_rx) ? ($pc11_rx * 100) / ($pc11_rx + $pc61_rx) : 0;
570 my $pc11_61p = $pc11_rx ? ($promotions * 100) / $pc11_rx : 0;
572 pc11_rx => $pc11_rx+0,
573 pc61_rx => $pc61_rx+0,
574 pc11_to_61 => $pc11_to_61+0,
575 rpc11_to_61 => $rpc11_to_61+0,
576 promotions => $promotions+0,
577 pc11_percent => $percent+0,
578 promotions_percent => $pc11_61p+0,
591 # announce duplicate checking
592 $pc->[3] =~ s/^\s+//; # remove leading blanks
594 # if this is a 'nodx' node then ignore it
595 if ($badnode->in($pc->[5])) {
596 dbg($line) if isdbg('nologchan');
597 dbg("PCPROT: Bad Node, dropped");
601 # if this is a 'bad spotter' user then ignore it
602 my $nossid = $pc->[1];
603 $nossid =~ s/-\d+$//;
604 if ($badspotter->in($nossid)) {
605 dbg($line) if isdbg('nologchan');
606 dbg("PCPROT: Bad Spotter, dropped");
610 # ignore PC12s from origins that use PCxx protocol
611 my $oref = Route::get($origin);
612 if ($oref->do_pc9x) {
613 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
619 if (@bad = BadWords::check($pc->[3])) {
620 my $bw = join ', ', @bad;
621 dbg($line) if isdbg('nologchan');
622 dbg("PCPROT: Badwords: '$bw', dropped");
630 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
631 $self->send_chat(0, $line, @$pc[1..6]);
632 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
634 # ignore something that looks like a chat line coming in with sysop
635 # flag - this is a kludge...
636 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
637 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
641 # here's a bit of fun, convert incoming ann with a callsign in the first word
642 # or one saying 'to <call>' to a talk if we can route to the recipient
644 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
646 my $ref = Route::get($call);
648 $dxchan = $ref->dxchan;
649 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
656 $self->send_announce(0, $line, @$pc[1..6]);
658 $self->route($pc->[2], $line);
662 if (defined &Local::ann) {
665 $r = Local::ann($self, $line, @$pc[1..6]);
679 if (eph_dup($line, $eph_pc15_restime)) {
682 unless ($self->{isolate}) {
683 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
699 my $ncall = $pc->[1];
700 my $newline = "PC16^";
702 # dos I want users from this channel?
703 unless ($self->user->wantpc16) {
704 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
709 if ($ncall eq $main::mycall) {
710 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
715 $h = 1 if DXChannel::get($ncall);
716 if ($h && $self->{call} ne $ncall) {
717 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
721 if (eph_dup($line)) {
725 # isolate now means only accept stuff from this call only
726 if ($self->{isolate} && $ncall ne $self->{call}) {
727 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
731 my $parent = Route::Node::get($ncall);
734 $dxchan = $parent->dxchan;
735 if ($dxchan && $dxchan ne $self) {
736 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
740 # input filter if required
741 return unless $self->in_filter_route($parent);
743 $parent = Route::Node->new($ncall);
747 if ($parent->via_pc92) {
748 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
755 for ($i = 2; $i < $#$pc; $i++) {
756 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
757 next unless $call && $conf && defined $here && is_callsign($call);
758 next if $call eq $main::mycall;
760 eph_del_regex("^PC17\\^$call\\^$ncall");
762 $conf = $conf eq '*';
764 # reject this if we think it is a node already
765 my $r = Route::Node::get($call);
766 my $u = DXUser::get_current($call) unless $r;
767 if ($r || ($u && $u->is_node)) {
768 dbg("PCPROT: $call is a node") if isdbg('chanerr');
772 $r = Route::User::get($call);
773 my $flags = Route::here($here)|Route::conf($conf);
776 my $au = $r->addparent($parent);
777 if ($r->flags != $flags) {
781 push @rout, $r if $h && $au;
783 my @ans = $parent->add_user($call, $flags);
784 push @rout, @ans if $h && @ans;
787 # add this station to the user database, if required
788 my $user = DXUser::get_current($ncall);
789 $user = DXUser->new($call) unless $user;
790 $user->homenode($parent->call) if !$user->homenode;
791 $user->node($parent->call);
792 $user->lastin($main::systime) unless DXChannel::get($call);
795 # send info to all logged in thingies
796 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
797 $self->tell_buddies('loginb', $call, $ncall);
800 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
801 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
815 my $ncall = $pc->[2];
816 my $ucall = $pc->[1];
818 eph_del_regex("^PC16\\^$ncall.*$ucall");
820 # do I want users from this channel?
821 unless ($self->user->wantpc16) {
822 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
826 if ($ncall eq $main::mycall) {
827 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
831 # isolate now means only accept stuff from this call only
832 if ($self->{isolate} && $ncall ne $self->{call}) {
833 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
837 my $uref = Route::User::get($ucall);
839 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
842 my $parent = Route::Node::get($ncall);
844 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
848 $dxchan = DXChannel::get($ncall);
849 if ($dxchan && $dxchan ne $self) {
850 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
855 if ($parent->via_pc92) {
856 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
861 if (DXChannel::get($ucall)) {
862 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
866 # input filter if required and then remove user if present
867 # return unless $self->in_filter_route($parent);
868 $parent->del_user($uref);
870 # send info to all logged in thingies
871 my $user = DXUser::get_current($ncall);
872 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
873 $self->tell_buddies('logoutb', $ucall, $ncall);
875 if (eph_dup($line)) {
879 $self->route_pc17($origin, $line, $parent, $uref);
880 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
892 $self->state('init');
894 my $parent = Route::Node::get($self->{call});
896 # record the type and version offered
897 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
899 $version += 53 if $version < 6;
900 $self->{version} = $version;
901 $self->user->version($version);
902 $parent->version($version);
903 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
905 $build = 0 unless $build > 1;
906 $self->{build} = $build;
907 $self->user->build($build);
908 $parent->build($build);
909 dbg("$self->{call} = $software version $version build $build");
910 unless ($self->is_spider) {
911 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
912 $self->user->sort('S');
916 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
917 } elsif (my ($software, $version, $build) = $pc->[1] =~ /(AR-Cluster)\s+Version:\s+(\d+\.\d+).?(\d+\.\d+)?/) {
918 dbg("$self->{call} = $software version $version build $build");
919 $self->{version} = $version;
920 $self->user->version($version);
921 $parent->version($version);
922 $self->{build} = $build;
923 $self->user->build($build);
924 $parent->build($build);
925 unless ($self->is_arcluster) {
926 dbg("Change U " . $self->user->sort . " C $self->{sort} -> R");
927 $self->user->sort('R');
932 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
933 $self->version(50.0);
934 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
935 $self->user->version($self->version);
938 if ($pc->[1] =~ /CC\s*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
939 if ($self->{isolate}) {
940 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
941 } elsif (!$self->user->wantpc9x) {
942 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
944 $self->{do_pc9x} = 1;
945 dbg("$self->{call} Set do PC9x");
949 # first clear out any nodes on this dxchannel
950 my @rout = $parent->del_nodes;
951 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
952 $self->send_local_config();
960 my $homenode = shift;
962 # add this station to the user database, if required (don't remove SSID from nodes)
963 my $user = DXUser::get_current($call);
965 $user = DXUser->new($call);
966 $user->sort($type || 'U');
967 if ($user->is_node) {
968 $user->priv(1); # I have relented and defaulted nodes
969 $user->lockout(1) if $user->is_node;
971 $user->homenode($homenode) if $homenode;
972 $user->node($homenode);
975 $user->lastin($main::systime); # this make it last longer than just this invocation
976 $user->put; # just to make sure it gets written away!!!
977 dbg("DXProt: PC92 new user record for $call created");
980 # this is to fix a problem I introduced some build ago by using this function for users
981 # whereas it was only being used for nodes.
982 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
985 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
991 # incoming cluster list
1001 my $newline = "PC19^";
1004 my (@rout, @pc92out);
1006 # first get the INTERFACE node
1007 my $parent = Route::Node::get($self->{call});
1009 dbg("PCPROT: my parent $self->{call} has disappeared");
1018 # We are making a major change from now on. We are only going to accept
1019 # PC19s from directly connected nodes. This means that we are probably
1020 # going to throw away most of the data that we are being sent.
1022 # The justification for this is that most of it is wrong or out of date
1025 # From now on we are only going to believe PC92 data and locally connected
1028 for ($i = 1; $i < $#$pc-1; $i += 4) {
1029 my $here = $pc->[$i];
1030 my $call = uc $pc->[$i+1];
1031 my $conf = $pc->[$i+2];
1032 my $ver = $pc->[$i+3];
1033 next unless defined $here && defined $conf && is_callsign($call);
1035 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
1037 # check for sane parameters
1038 # $ver = 5000 if $ver eq '0000';
1039 next unless $ver && $ver =~ /^\d+$/;
1040 next if $ver < 5000; # only works with version 5 software
1041 next if length $call < 3; # min 3 letter callsigns
1042 next if $call eq $main::mycall || $call eq $main::myalias;
1044 # check that this PC19 isn't trying to alter the wrong dxchan
1046 my $dxchan = DXChannel::get($call);
1048 if ($dxchan == $self) {
1051 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
1056 # isolate now means only accept stuff from this call only
1057 if ($self->{isolate} && $call ne $self->{call}) {
1058 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
1062 my $user = check_add_user($call, 'A');
1064 # if (eph_dup($genline)) {
1065 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
1071 if ($parent->via_pc92) {
1072 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
1077 my $r = Route::Node::get($call);
1078 my $flags = Route::here($here)|Route::conf($conf);
1080 # modify the routing table if it is in it, otherwise store it in the pc19list for now
1083 if ($call ne $parent->call) {
1084 if ($self->in_filter_route($r)) {
1085 $ar = $parent->add($call, $ver, $flags);
1086 # push @rout, $ar if $ar;
1091 if ($r->version ne $ver || $r->flags != $flags) {
1097 if ($call eq $self->{call} || $user->wantroutepc19) {
1098 my $new = Route->new($call); # throw away
1099 if ($self->in_filter_route($new)) {
1100 my $ar = $parent->add($call, $ver, $flags);
1101 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1102 push @rout, $ar if $ar;
1103 push @pc92out, $r if $h;
1110 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1111 my $mref = DXMsg::get_busy($call);
1112 $mref->stop_msg($call) if $mref;
1114 $user->lastin($main::systime) unless DXChannel::get($call);
1118 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1119 # but remember there will only be one (pair) these because any extras will be
1122 # $self->route_pc21($self->{call}, $line, @rout);
1123 $self->route_pc19($self->{call}, $line, @rout);
1125 if (@pc92out && !$pc92_slug_changes) {
1126 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1130 # send local configuration
1139 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1140 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1141 $self->{do_pc9x} = 0;
1143 $self->send_local_config;
1144 $self->send(pc22());
1145 $self->state('normal');
1146 $self->{lastping} = 0;
1147 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1150 # delete a cluster from the list
1152 # This should never occur for directly connected nodes.
1162 my $call = uc $pc->[1];
1164 eph_del_regex("^PC1[679].*$call");
1166 # if I get a PC21 from the same callsign as self then ignore it
1167 if ($call eq $self->{call}) {
1168 dbg("PCPROT: self referencing PC21 from $self->{call}");
1172 # for the above reason and also because of the check for PC21s coming
1173 # in for self->call from outside being ignored further down
1174 # we don't need any isolation code here, because we will never
1175 # act on a PC21 with self->call in it.
1177 my $parent = Route::Node::get($self->{call});
1179 dbg("PCPROT: my parent $self->{call} has disappeared");
1186 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1187 my $node = Route::Node::get($call);
1190 if ($node->via_pc92) {
1191 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1195 my $dxchan = DXChannel::get($call);
1196 if ($dxchan && $dxchan != $self) {
1197 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1202 return unless $self->in_filter_route($node);
1204 # routing objects, force a PC21 if it is local
1205 push @rout, $node->del($parent);
1206 push @rout, $call if $dxchan && @rout == 0;
1209 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1213 if (eph_dup($line)) {
1218 $self->route_pc21($origin, $line, @rout);
1219 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1232 if ($self->{do_pc9x}) {
1233 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1234 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1235 $self->{do_pc9x} = 0;
1238 $self->{lastping} = 0;
1239 $self->state('normal');
1240 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1252 # route foreign' pc27s
1254 if ($pc->[8] ne $main::mycall) {
1255 $self->route($pc->[8], $line);
1262 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1263 my $sfi = unpad($pc->[3]);
1264 my $k = unpad($pc->[4]);
1265 my $i = unpad($pc->[5]);
1266 my ($r) = $pc->[6] =~ /R=(\d+)/;
1268 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1269 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1273 # global wwv filtering on INPUT
1274 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1275 if ($self->{inwwvfilter}) {
1276 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1278 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1282 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1283 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1284 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1288 # note this only takes the first one it gets
1289 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1290 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1292 if (defined &Local::wwv) {
1295 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1300 # DON'T be silly and send on PC27s!
1301 return if $pcno == 27;
1303 # broadcast to the eager world
1304 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1316 my $call = uc $pc->[1];
1318 $nref = Route::Node::get($call);
1319 $uref = Route::User::get($call);
1320 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1322 if (eph_dup($line)) {
1326 $nref->here($pc->[2]) if $nref;
1327 $uref->here($pc->[2]) if $uref;
1328 my $ref = $nref || $uref;
1329 return unless $self->in_filter_route($ref);
1331 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1343 if ($pc->[1] ne $main::mycall) {
1344 $self->route($pc->[1], $line);
1347 if ($pc->[2] eq $main::mycall) {
1348 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1352 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1356 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1359 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1365 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1368 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1373 sub handle_26 {goto &handle_11}
1374 sub handle_27 {goto &handle_23}
1376 # mail/file handling
1385 if ($pc->[1] eq $main::mycall) {
1387 my $sub = "DXMsg::handle_$pcno";
1390 $self->route($pc->[1], $line) unless $self->is_clx;
1394 sub handle_29 {goto &handle_28}
1395 sub handle_30 {goto &handle_28}
1396 sub handle_31 {goto &handle_28}
1397 sub handle_32 {goto &handle_28}
1398 sub handle_33 {goto &handle_28}
1408 if (eph_dup($line, $eph_pc34_restime)) {
1411 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1415 # remote command replies
1424 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1425 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1428 sub handle_36 {goto &handle_34}
1439 if ($pc->[1] eq $main::mycall) {
1441 my $sub = "DXDb::handle_$pcno";
1444 $self->route($pc->[1], $line) unless $self->is_clx;
1448 # node connected list from neighbour
1458 # incoming disconnect
1467 if ($pc->[1] eq $self->{call}) {
1468 $self->disconnect(1);
1470 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1474 sub handle_40 {goto &handle_28}
1485 my $call = $pc->[1];
1486 my $sort = $pc->[2];
1489 my $l = "PC41^$call^$sort";
1490 if (eph_dup($l, $eph_info_restime)) {
1494 # input filter if required
1495 # my $ref = Route::get($call) || Route->new($call);
1496 # return unless $self->in_filter_route($ref);
1498 if ($val eq $sort || $val =~ /^\s*$/) {
1499 dbg('PCPROT: invalid value') if isdbg('chanerr');
1503 if ($call eq $main::mycall || $call eq $main::myalias) {
1504 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1507 my $chan = DXChannel::get($call);
1509 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1513 # add this station to the user database, if required
1514 my $user = DXUser::get_current($call);
1515 $user = DXUser->new($call) unless $user;
1518 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1519 dbg("PCPROT: invalid name") if isdbg('chanerr');
1523 } elsif ($sort == 2) {
1525 } elsif ($sort == 3) {
1526 if (is_latlong($val)) {
1527 my ($lat, $long) = DXBearing::stoll($val);
1528 $user->lat($lat) if $lat;
1529 $user->long($long) if $long;
1530 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1532 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1535 } elsif ($sort == 4) {
1536 $user->homenode($val);
1537 } elsif ($sort == 5) {
1538 if (is_qra(uc $val)) {
1539 my ($lat, $long) = DXBearing::qratoll(uc $val);
1540 $user->lat($lat) if $lat && !$user->lat;
1541 $user->long($long) if $long && !$user->long;
1542 $user->qra(uc $val);
1544 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1548 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1551 unless ($self->{isolate}) {
1552 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1555 # perhaps this IS what we want after all
1556 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1559 sub handle_42 {goto &handle_28}
1563 sub handle_44 {goto &handle_37}
1564 sub handle_45 {goto &handle_37}
1565 sub handle_46 {goto &handle_37}
1566 sub handle_47 {goto &handle_37}
1567 sub handle_48 {goto &handle_37}
1569 # message and database
1578 if (eph_dup($line)) {
1582 if ($pc->[1] eq $main::mycall) {
1583 DXMsg::handle_49($self, @$pc);
1585 $self->route($pc->[1], $line) unless $self->is_clx;
1589 # keep alive/user list
1598 return if (eph_dup($line));
1600 my $call = $pc->[1];
1602 my $node = Route::Node::get($call);
1604 return unless $node->call eq $self->{call};
1605 $node->usercount($pc->[2]) unless $node->users;
1607 $node->PC92C_dxchan($self->call, $pc->[-1]);
1609 # input filter if required
1610 # return unless $self->in_filter_route($node);
1612 unless ($self->{isolate}) {
1613 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1615 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1619 # incoming ping requests/answers
1629 my $from = $pc->[2];
1630 my $flag = $pc->[3];
1632 if ($to eq $main::myalias) {
1633 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1638 if ($to eq $main::mycall) {
1640 $self->send(pc51($from, $to, '0'));
1642 DXXml::Ping::handle_ping_reply($self, $from);
1645 if (eph_dup($line)) {
1648 # route down an appropriate thingy
1649 $self->route($to, $line);
1653 sub handle_61 { goto &handle_11; }
1655 # dunno but route it
1664 my $call = $pc->[1];
1665 if ($call ne $main::mycall) {
1666 $self->route($call, $line);
1679 my $call = $pc->[1];
1682 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1683 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1684 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1687 $pc = [ map { unpad($_) } @$pc ];
1689 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1693 my $wcy = WCY::update($d, @$pc[2..12]);
1694 dbg("WCY: <$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');
1696 if (defined &Local::wcy) {
1699 $rep = Local::wcy($self, @$pc[1..12]);
1704 # broadcast to the eager world
1705 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1708 # remote commands (incoming)
1717 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1720 # remote command replies
1729 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1732 # decode a pc92 call: flag call : version : build
1733 sub _decode_pc92_call
1736 my @part = split /:/, $icall;
1737 my ($flag, $call) = unpack "A A*", $part[0];
1738 unless (defined $flag && $flag ge '0' && $flag le '7') {
1739 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1742 unless ($call && is_callsign($call)) {
1743 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1746 my $is_node = $flag & 4;
1747 my $is_extnode = $flag & 2;
1748 my $here = $flag & 1;
1749 my $version = $part[1] || 0;
1750 my $build = $part[2] || 0;
1751 my $ip = $part[3] || '';
1753 # remember that, at this stage, IPV6 addresses have : replaced by ,
1754 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1758 $version =~ s/\D//g;
1759 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1762 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1765 $ip =~ s/^::ffff://i;
1766 $ip = '' unless is_ipaddr($ip);
1768 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1769 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1772 # decode a pc92 call: flag call : version : build
1773 sub _encode_pc92_call
1777 # plain call or value
1778 return $ref unless ref $ref;
1780 my $ext = shift || 0;
1782 my $call = $ref->call;
1784 $flag |= $ref->here ? 1 : 0;
1785 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1787 my $dxchan = DXChannel::get($call);
1788 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1789 if (($ext & 1) && $ref->version) {
1790 my $version = $ref->version || 1.0;
1791 $version = $version * 100 + 5300 if $version < 50;
1792 $extra .= ":" . $version;
1795 if (($ext & 2) && $ref->ip) {
1798 $extra .= ':' . $ip;
1801 return "$flag$call$extra";
1814 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1817 # remove spurious IPV6 prefix on IPV4 addresses
1822 my $ncall = $parent->call;
1823 if ($ncall ne $call) {
1827 # normalise call, delete any unnormalised calls in the users file.
1828 # then ignore this thingy
1829 my $normcall = normalise_call($call);
1830 if ($normcall ne $call) {
1831 next if DXChannel::get($call);
1832 $user = DXUser::get($call);
1833 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1834 $user->del if $user;
1835 $call = $normcall; # this is safe because a route add will ignore duplicates
1839 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1840 $user = check_add_user($call, 'A');
1841 @rout = $parent->add($call, $version, Route::here($here), $ip);
1842 $r = Route::Node::get($call);
1843 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1844 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1845 my $old = $user->sort;
1846 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1848 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1849 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1850 unless ($version > 0 && $build == 0) {
1853 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1857 $r->version($user->version) if $user->version;
1858 $r->build($user->build) if $user->build;
1859 $r->K(1) if $user->K;
1861 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1862 $user = check_add_user($call, 'U', $parent->call);
1863 @rout = $parent->add_user($call, Route::here($here), $ip);
1864 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1865 $r = Route::User::get($call);
1869 Log('DXProt', "PC92A $call -> $ip on $ncall");
1871 if ($pc92_slug_changes && $parent == $main::routeroot) {
1872 $things_add{$call} = Route::get($call);
1873 delete $things_del{$call};
1875 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1877 dbgprintring(10) if isdbg('nologchan');
1878 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1890 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1895 $ref = Route::Node::get($call);
1896 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1897 @rout = $ref->del($parent) if $ref;
1899 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1900 $ref = Route::User::get($call);
1902 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1903 @rout = $parent->del_user($ref);
1906 if ($pc92_slug_changes && $parent == $main::routeroot) {
1907 $things_del{$call} = $ref unless exists $things_add{$call};
1908 delete $things_add{$call};
1914 # this will only happen if we are slugging changes and
1915 # there are some changes to be sent, it will create an add or a delete
1917 sub gen_pc92_changes
1919 my @add = values %things_add;
1920 my @del = values %things_del;
1921 return (\@add, \@del);
1924 sub clear_pc92_changes
1926 %things_add = %things_del = ();
1927 $last_pc92_slug = $main::systime;
1936 return $_last_pc9x_id;
1941 if (!$_last_time || $_last_time != $main::systime) {
1942 $_last_time = $main::systime;
1944 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1947 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1958 # check that the time is between 0 >= $t < 86400
1959 unless ($t >= 0 && $t < 86400) {
1960 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1964 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1965 my $now = $main::systime - $main::systime_daystart ;
1966 my $diff = abs($now - $t);
1967 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1968 my $c = ref $call ? $call->call : $call;
1969 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1973 my $parent = ref $call ? $call : Route::Node::get($call);
1975 # we only do this for external calls whose routing table
1976 # record come and go. The reference for mycall is permanent
1977 # and not that frequently used, it also never times out, so
1978 # the id on it is completely unreliable. Besides, only commands
1979 # originating on this box will go through this code...
1980 if ($parent->call ne $main::mycall) {
1981 my $lastid = $parent->lastid;
1982 if (defined $lastid) {
1984 # note that this is where we determine whether this pc9x has come in yesterday
1985 # but is still greater (modulo 86400) than the lastid or is simply an old
1986 # duplicate sentence. To determine this we need to do some module 86400
1987 # arithmetic. High numbers mean that this is an old duplicate sentence,
1988 # low numbers that it is a new sentence.
1990 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1991 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1992 # 86378 respectively in the calculation below).
1994 if ($t+86400-$lastid > $pc9x_past_age) {
1995 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1998 } elsif ($t == $lastid) {
1999 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
2002 # check that if we have a low number in lastid that yesterday's numbers
2003 # (likely in the 85000+ area) don't override them, thus causing flip flopping
2004 if ($lastid+86400-$t < $pc9x_past_age) {
2005 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
2012 $parent = Route::Node->new($call);
2014 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
2017 if (isdbg('pc92dedupe')) {
2018 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
2019 my $val = $parent->{lastid};
2020 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
2021 dbg("PCPROT: $call pc92 id lastid $s -> $t");
2023 $parent->lastid($t);
2028 sub pc92_handle_first_slot
2035 my $oparent = $parent;
2039 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
2040 if ($call && $is_node) {
2041 if ($call eq $main::mycall) {
2042 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
2045 if ($call eq $main::myalias) {
2046 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
2049 # this is only accepted from my "self".
2050 # this also kills configs from PC92 nodes with external PC19 nodes that are also
2051 # locally connected. Local nodes always take precedence. But we remember the lastid
2052 # to try to reduce the number of dupe PC92s for this external node.
2053 if (DXChannel::get($call) && $call ne $self->{call}) {
2054 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
2055 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
2059 # reparent to external node (note that we must have received a 'C' or 'A' record
2060 # from the true parent node for this external before we get one for the this node
2061 unless ($parent = Route::Node::get($call)) {
2062 if ($is_extnode && $oparent) {
2063 @radd = _add_thingy($oparent, $slot, $self, $hops);
2066 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
2070 $parent = check_pc9x_t($call, $t, 92) || return;
2071 $parent->via_pc92(1);
2072 $parent->PC92C_dxchan($self->{call}, $hops);
2075 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
2078 $parent->here(Route::here($here));
2079 $parent->version($version || $pc19_version) if $version;
2080 $parent->build($build) if $build;
2081 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2082 return ($parent, @radd);
2085 # DXSpider routing entries
2096 my $pcall = $pc->[1];
2098 my $sort = $pc->[3];
2099 my $hops = $pc->[-1];
2101 # this catches loops of A/Ds
2102 # if (eph_dup($line, $pc9x_dupe_age)) {
2106 if ($pcall eq $main::mycall) {
2107 LogDbg('err', "PCPROT: looped back, ignored");
2111 if ($pcall eq $main::myalias) {
2112 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2116 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2117 if ($self->{isolate}) {
2118 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2120 } elsif (!$self->user->wantpc9x) {
2121 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2124 $self->state('init92');
2125 $self->{do_pc9x} = 1;
2126 dbg("DXPROT: Do pc9x set on $pcall");
2129 unless ($self->{do_pc9x}) {
2130 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2134 # don't create routing entries for D records that don't already exist
2135 # this is what causes all those PC92 loops!
2136 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2137 my $oparent = $parent;
2139 $parent->do_pc9x(1);
2140 $parent->via_pc92(1);
2142 if ($sort eq 'F' || $sort eq 'R') {
2144 # this is the route finding section
2145 # here is where the consequences of the 'find' command
2148 my $from = $pc->[4];
2149 my $target = $pc->[5];
2155 if ($ref = DXChannel::get($target)) {
2156 $flag = 1; # we are directly connected
2158 $ref = Route::get($target);
2159 $dxchan = $ref->dxchan;
2162 if ($ref && $flag && $dxchan) {
2163 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2166 } elsif ($sort eq 'R') {
2167 if (my $dxchan = DXChannel::get($from)) {
2168 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2170 my $ref = Route::get($from);
2172 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2174 $_->send($line) for @dxchan;
2176 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2179 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2185 } elsif ($sort eq 'K') {
2186 $pc92Kin += length $line;
2188 # remember the last channel we arrived on
2189 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2191 my @ent = _decode_pc92_call($pc->[4]);
2196 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2197 return unless $parent; # dupe
2199 push @radd, $add if $add;
2201 my $call = $parent->call;
2202 my $version = $ent[4] || 0;
2203 my $build = $ent[5] || 0;
2205 my $oldbuild = $parent->build || 0;
2206 my $oldversion = $parent->version || 0;
2207 my $user = check_add_user($parent->call, 'S');
2208 my $oldsort = $user->sort // '';
2210 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2212 if (is_numeric($version) || is_numeric($build)) {
2214 if (($oldversion ne $version || $build ne $oldbuild)) {
2215 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2216 $user->version($parent->version($version));
2217 $user->build($parent->build($build));
2220 if ($oldsort ne 'S') {
2221 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2226 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2230 $user->put if $changed;
2231 $parent->K(1); # mark this as come in on a K
2233 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2235 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2237 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2239 $pc92Ain += length $line if $sort eq 'A';
2240 $pc92Cin += length $line if $sort eq 'C';
2241 $pc92Din += length $line if $sort eq 'D';
2243 # remember the last channel we arrived on
2244 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2246 # this is the main route section
2247 # here is where all the routes are created and destroyed
2249 # cope with missing duplicate node calls in the first slot
2250 my $me = $pc->[4] || '';
2251 $me ||= _encode_pc92_call($parent) unless $me ;
2253 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2257 # look at the first one which will always be a node of some sort
2258 # except in the case of 'A' or 'D' in which the $pcall is used
2259 # otherwise use the node call and update any information
2260 # that needs to be done.
2263 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2264 return unless $parent; # dupe
2267 push @radd, $add if $add;
2270 # do a pass through removing any references to either mycall
2274 next unless $_ && @$_;
2275 if ($_->[0] eq $main::mycall) {
2276 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2279 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2280 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2289 push @radd, _add_thingy($parent, $_, $self, $hops);
2291 } elsif ($sort eq 'D') {
2293 push @rdel, _del_thingy($parent, $_, $self);
2295 } elsif ($sort eq 'C') {
2296 my (@nodes, @users);
2298 # we reset obscounts on config records as well as K records
2300 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2303 foreach my $r (@nent) {
2304 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2307 push @nodes, $r->[0];
2309 push @users, $r->[0];
2312 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2316 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2319 foreach my $r (@nent) {
2322 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2326 foreach my $r (@$dnodes) {
2327 push @rdel,_del_thingy($parent, [$r, 1], $self);
2329 foreach my $r (@$dusers) {
2330 push @rdel,_del_thingy($parent, [$r, 0], $self);
2333 # remember this last PC92C for rebroadcast on demand
2334 $parent->last_PC92C($line);
2336 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2340 foreach my $r (@rdel) {
2343 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2344 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2346 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2347 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2348 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2349 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2350 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2353 # broadcast it if we get here
2354 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2357 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2358 # might be on two or more nodes at the same time or that there may be more than
2359 # one equal distance neighbour to a node.
2361 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2362 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2363 # each and then combined to give a set of dxchans to send the PC9x record down
2365 sub find_pc9x_routes
2368 my $ref = Route::get($to);
2372 if ($ref->isa('Route::User')) {
2373 my $dxchan = DXChannel::get($to);
2374 push @parent, $to if $dxchan;
2375 push @parent, $ref->parents;
2379 foreach my $p (@parent) {
2381 my @routes = Route::findroutes($p);
2382 foreach my $r (@routes) {
2383 $lasthops = $r->[0] unless defined $lasthops;
2384 if ($r->[0] == $lasthops) {
2385 $cand{$r->[1]->call} = $r->[1];
2391 return values %cand;
2402 # $self->{do_pc9x} ||= 1;
2404 my $pcall = $pc->[1]; # this is now checked earlier
2406 # remember that we are converting PC10->PC93 and self will be $main::me if it
2408 unless ($self->{do_pc9x}) {
2409 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2414 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2416 my $to = uc $pc->[3];
2417 my $from = uc $pc->[4];
2418 my $via = uc $pc->[5];
2419 my $text = $pc->[6];
2420 my $onode = uc $pc->[7];
2421 $onode = $pcall if @$pc <= 8;
2423 # this is catch loops caused by bad software ...
2424 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2428 if (isdbg('progress')) {
2429 my $vs = $via ne '*' ? " via $via" : '';
2430 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2434 # if this is a 'bad spotter' user then ignore it
2436 $nossid =~ s/-\d+$//;
2437 if ($badspotter->in($nossid)) {
2438 dbg($line) if isdbg('nologchan');
2439 dbg("PCPROT: Bad Spotter, dropped");
2443 # ignore PC93 coming in from outside this node with a target of local
2444 if ($to eq 'LOCAL' && $self != $main::me) {
2445 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2449 # will we allow it at all?
2452 if (@bad = BadWords::check($text)) {
2453 my $bw = join ', ', @bad;
2454 dbg($line) if isdbg('nologchan');
2455 dbg("PCPROT: Badwords: '$bw', dropped");
2460 # if it is routeable then then treat it like a talk
2461 my $ref = Route::get($to);
2465 # convert to PC10 or local talks where appropriate
2466 # PC93 capable nodes of the same hop count all get a copy
2467 # if there is a PC10 node then it will get a copy and that
2468 # will be it. Hopefully such a node will not figure highly
2469 # in the route list, unless it is local, 'cos it don't issue PC92s!
2470 # note that both local and PC93s at the same time are possible if the
2471 # user on more than one node.
2472 my @routes = find_pc9x_routes($to);
2474 foreach $dxchan (@routes) {
2475 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2476 if ($dxchan->{do_pc9x}) {
2477 $dxchan->send($line);
2479 $dxchan->talk($from, $to, $via, $text, $onode);
2482 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2487 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2489 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2490 my $wx = $to eq 'WX' ? '1' : '0';
2491 my $local = $via eq 'LOCAL' ? '*' : $via;
2493 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2494 return if $via eq 'LOCAL';
2495 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2496 # chat messages really only locally connected users
2497 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2500 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2501 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2504 # if get here then rebroadcast the thing with its Hop count decremented (if
2505 # there is one). If it has a hop count and it decrements to zero then don't
2508 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2520 unless (eph_dup($line)) {
2522 my $pcall = $pc->[1];
2523 unless (is_callsign($pcall)) {
2524 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2528 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2529 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2531 unless ($self->{isolate}) {
2532 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me