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
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 = 1; # number of seconds to wait for a PC61 to come to substitute the PC11
68 $pc92filterdef = bless ([
69 # tag, sort, field, priv, special parser
78 # this is a place to park an incoming PC11 in the sure and certain hope that
79 # a PC61 will be along soon. This has the side benefit that it will delay a
80 # a PC11 for one second - assuming that it is not removed by a PC61 version
82 # incoming talk commands
91 # this is to catch loops caused by bad software ...
92 if (eph_dup($line, $pc10_dupe_age)) {
97 # is it for me or one of mine?
98 my ($from, $to, $via, $call, $dxchan);
100 if ($pc->[5] gt ' ') {
107 # if this is a 'nodx' node then ignore it
108 if ($badnode->in($pc->[6]) || ($via && $badnode->in($via))) {
109 dbg($line) if isdbg('nologchan');
110 dbg("PCPROT: Bad Node, dropped");
116 $nossid =~ s/-\d+$//;
117 if ($badspotter->in($nossid)) {
118 dbg($line) if isdbg('nologchan');
119 dbg("PCPROT: Bad Spotter, dropped");
123 # if we are converting announces to talk is it a dup?
125 if (AnnTalk::is_talk_candidate($from, $pc->[3]) && AnnTalk::dup($from, $to, $pc->[3])) {
126 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
131 # will we allow it at all?
134 if (@bad = BadWords::check($pc->[3])) {
135 my $bw = join ', ', @bad;
136 dbg($line) if isdbg('nologchan');
137 dbg("PCPROT: Badwords: '$bw', dropped");
142 # convert this to a PC93, coming from mycall with origin set and process it as such
143 $main::me->normal(pc93($to, $from, $via, $pc->[3], $pc->[6]));
162 my $recurse = shift || 0;
164 # route 'foreign' pc26s
166 if ($pc->[7] ne $main::mycall) {
167 $self->route($pc->[7], $line);
172 dbg("INPUT PC$pcno $line origin $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');
261 # this is where we decide to delay PC11s in the hope that a PC61 will be along soon.
263 my $key = join '|', @spot[0..2,4,7]; # not including text
270 if ($key eq $pc11_saved->[0]) {
272 my $percent = $pc11_rx ? $pc11_to_61 * 100 / $pc11_rx : 0;
273 dbg(sprintf("recurse: $recurse saved PC11 spot $key dumped, better pc61 received pc61: $pc61_rx pc11: $pc11_rx -> pc61: $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
283 if ($key eq $pc11_saved->[0] ) {
284 dbg("recurse: $recurse saved PC11 spot $key, dupe pc11 received and dumped") if isdbg("pc11");
285 return; # because it's a dup
289 # can we promote this to a PC61?
290 my $r = Route::User::get($spot[4]); # find spotter
291 if ($r && $r->ip) { # do we have an ip addres
292 $pcno = 61; # now turn this into a PC61
295 my $percent = $pc11_rx ? $rpc11_to_61 * 100 / $pc11_rx : 0;
296 dbg(sprintf("recurse: $recurse PC11 spot $key promoted to pc61 ip $spot[14] pc61: $pc61_rx pc11: $pc11_rx -> pc61 $pc11_to_61 (%0.1f%%)", $percent)) if isdbg("pc11");
300 # if it is STILL (despite all efforts to change it) a PC11
302 if ($pc11_saved && $key ne $pc11_saved->[0]) {
303 dbg("recurse: $recurse NEW PC11 spot $key ne $pc11_saved->[0], recursing") if isdbg("pc11");
304 # shift @$pc11_saved; # saved key
305 my $self = $pc11_saved->[1];
306 my @saved = @$pc11_saved[2..5];
307 $self->handle_11(@saved, 1);
310 $pc11_saved = [$key, $self, $pcno, $line, $origin, $pc];
311 $pc11_saved_time = $main::systime;
312 dbg("recurse: $recurse saved new PC11 spot $key for a better offer") if isdbg("pc11");
317 my $count = $pc11_to_61+$rpc11_to_61;
318 my $percent = $pc11_rx ? $count*100 / $pc11_rx : 0;
319 dbg(sprintf("recurse: $recurse PC61 spot $key passed onward pc61: $pc61_rx pc11: $pc11_rx -> pc61: $count (%0.1f%%)", $percent)) if isdbg("pc11");
326 # this goes after the input filtering, but before the add
327 # so that if it is input filtered, it isn't added to the dup
328 # list. This allows it to come in from a "legitimate" source
329 if (Spot::dup(@spot[0..4,7])) {
330 dbg("PCPROT: Duplicate Spot $pc->[0] $key ignored\n") if isdbg('chanerr') || isdbg('dupespot');
334 # we check IP addresses for PC61 - this will also dedupe PC11 copies
335 if (@$pc > 8 && is_ipaddr($pc->[8])) {
339 if (DXCIDR::find($ip)) {
340 dbg($line) if isdbg('nologchan');
341 dbg("PCPROT: $ip in badip list, dropped");
347 # here we verify the spotter is currently connected to the node it says it is one. AKA email sender verify
348 # but without the explicit probe to the node. We are relying on "historical" information, but it very likely
349 # to be current once we have seen the first PC92C from that node.
351 # As for spots generated from non-PC92 nodes, we'll see after about do_pc9x3h20m...
354 my $nroute = Route::Node::get($pc->[7]);
355 my $uroute = Route::Node::get($pc->[6]);
356 my $local = DXChannel::get($pc->[7]);
358 if ($nroute && ($nroute->last_PC92C || ($local && !$local->do_pc9x))) {
360 my $ip = $pcno == 61 ? $pc->[8] : '';
361 # $s .= "User $pc->[6] not logged in, " unless $uroute;
362 $s .= "User $pc->[6] not on node $pc->[7], " unless $nroute->is_user($pc->[6]);
363 # $s .= "Node $pc->[7] at '$ip' not on Node's IP " . $nroute->ip if $ip && $nroute && $nroute->ip && $nroute->ip ne $ip;
365 my $action = $senderverify > 1 ? ", DUMPED" : '';
367 dbg("PCPROT: Suspicious Spot $pc->[2] on $pc->[1] by $pc->[6]($ip)\@$pc->[7] $s$action");
368 return unless $senderverify < 2;
373 # we until here to do any censorship to try and reduce the amount of noise that repeated copies
374 # from other connected nodes cause
377 if (@bad = BadWords::check($pc->[5])) {
378 my $bw = join ', ', @bad;
379 dbg($line) if isdbg('nologchan');
380 dbg("PCPROT: Badwords: '$bw', dropped");
390 $ip ||= $spot[14] if exists $spot[14];
391 if (isdbg('progress')) {
392 my $sip = $ip ? sprintf "($ip)" : '' unless $ip =~ m|[\(\)\*]|;
394 my $d = ztime($spot[2]);
395 my $s = "SPOT: $spot[1] on $spot[0] \@ $d by $spot[4]$sip\@$spot[7]";
396 $s .= $spot[3] ? " '$spot[3]'" : q{ ''};
397 $s .= " route: $origin";
402 # @spot at this point contains:-
403 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
404 # then spotted itu, spotted cq, spotters itu, spotters cq
405 # you should be able to route on any of these
408 # fix up qra locators of known users
409 my $user = DXUser::get_current($spot[4]);
411 my $qra = $user->qra;
412 unless ($qra && is_qra($qra)) {
413 my $lat = $user->lat;
414 my $long = $user->long;
415 if (defined $lat && defined $long) {
416 $user->qra(DXBearing::lltoqra($lat, $long));
421 # send a remote command to a distant cluster if it is visible and there is no
422 # qra locator and we havn't done it for a month.
424 unless ($user->qra) {
426 my $to = $user->homenode;
427 my $last = $user->lastoper || 0;
428 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
429 my $cmd = "forward/opernam $spot[4]";
430 # send the rcmd but we aren't interested in the replies...
431 my $dxchan = $node->dxchan;
432 if ($dxchan && $dxchan->is_clx) {
433 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
435 route(undef, $to, pc34($main::mycall, $to, $cmd));
437 if ($to ne $origin) {
439 $node = Route::Node::get($to);
441 $dxchan = $node->dxchan;
442 if ($dxchan && $dxchan->is_clx) {
443 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
445 route(undef, $to, pc34($main::mycall, $to, $cmd));
449 $user->lastoper($main::systime);
455 # cancel any recursion as we have now processed it
457 if ($pc11_saved && $key eq $pc11_saved->[0]) {
458 dbg("recurse: $recurse key: $key saved_key: $pc11_saved->[0] removed") if isdbg('pc11');
465 if (defined &Local::spot) {
468 $r = Local::spot($self, @spot);
473 # DON'T be silly and send on PC26s!
474 return if $pcno == 26;
476 # send out the filtered spots
477 send_dx_spot($self, $line, @spot) if @spot;
482 # used to kick outstanding PC11 if required
485 if ($pc11_saved && $main::systime > $pc11_saved_time + $pc11_dwell_time) {
486 dbg("saved PC11 spot $pc11_saved->[0] timed out waiting, recursing") if isdbg("pc11");
487 shift @$pc11_saved; # saved key
488 my $self = shift @$pc11_saved;
489 my @saved = @$pc11_saved;
491 $self->handle_11(@saved, 1);
504 # announce duplicate checking
505 $pc->[3] =~ s/^\s+//; # remove leading blanks
507 # if this is a 'nodx' node then ignore it
508 if ($badnode->in($pc->[5])) {
509 dbg($line) if isdbg('nologchan');
510 dbg("PCPROT: Bad Node, dropped");
514 # if this is a 'bad spotter' user then ignore it
515 my $nossid = $pc->[1];
516 $nossid =~ s/-\d+$//;
517 if ($badspotter->in($nossid)) {
518 dbg($line) if isdbg('nologchan');
519 dbg("PCPROT: Bad Spotter, dropped");
523 # ignore PC12s from origins that use PCxx protocol
524 my $oref = Route::get($origin);
525 if ($oref->do_pc9x) {
526 dbg("PCPROT: PC12 rxed from PC9x node, ignored") if isdbg('chanerr');
532 if (@bad = BadWords::check($pc->[3])) {
533 my $bw = join ', ', @bad;
534 dbg($line) if isdbg('nologchan');
535 dbg("PCPROT: Badwords: '$bw', dropped");
543 if ((($dxchan = DXChannel::get($pc->[2])) && $dxchan->is_user) || $pc->[4] =~ /^[\#\w.]+$/){
544 $self->send_chat(0, $line, @$pc[1..6]);
545 } elsif ($pc->[2] eq '*' || $pc->[2] eq $main::mycall) {
547 # ignore something that looks like a chat line coming in with sysop
548 # flag - this is a kludge...
549 if ($pc->[3] =~ /^\#\d+ / && $pc->[4] eq '*') {
550 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
554 # here's a bit of fun, convert incoming ann with a callsign in the first word
555 # or one saying 'to <call>' to a talk if we can route to the recipient
557 my $call = AnnTalk::is_talk_candidate($pc->[1], $pc->[3]);
559 my $ref = Route::get($call);
561 $dxchan = $ref->dxchan;
562 $dxchan->talk($pc->[1], $call, undef, $pc->[3], $pc->[5]) if $dxchan != $self;
569 $self->send_announce(0, $line, @$pc[1..6]);
571 $self->route($pc->[2], $line);
575 if (defined &Local::ann) {
578 $r = Local::ann($self, $line, @$pc[1..6]);
592 if (eph_dup($line, $eph_pc15_restime)) {
595 unless ($self->{isolate}) {
596 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
612 my $ncall = $pc->[1];
613 my $newline = "PC16^";
615 # dos I want users from this channel?
616 unless ($self->user->wantpc16) {
617 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
622 if ($ncall eq $main::mycall) {
623 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
628 $h = 1 if DXChannel::get($ncall);
629 if ($h && $self->{call} ne $ncall) {
630 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
634 if (eph_dup($line)) {
638 # isolate now means only accept stuff from this call only
639 if ($self->{isolate} && $ncall ne $self->{call}) {
640 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
644 my $parent = Route::Node::get($ncall);
647 $dxchan = $parent->dxchan;
648 if ($dxchan && $dxchan ne $self) {
649 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
653 # input filter if required
654 return unless $self->in_filter_route($parent);
656 $parent = Route::Node->new($ncall);
660 if ($parent->via_pc92) {
661 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
668 for ($i = 2; $i < $#$pc; $i++) {
669 my ($call, $conf, $here) = $pc->[$i] =~ /^(\S+) (\S) (\d)/o;
670 next unless $call && $conf && defined $here && is_callsign($call);
671 next if $call eq $main::mycall;
673 eph_del_regex("^PC17\\^$call\\^$ncall");
675 $conf = $conf eq '*';
677 # reject this if we think it is a node already
678 my $r = Route::Node::get($call);
679 my $u = DXUser::get_current($call) unless $r;
680 if ($r || ($u && $u->is_node)) {
681 dbg("PCPROT: $call is a node") if isdbg('chanerr');
685 $r = Route::User::get($call);
686 my $flags = Route::here($here)|Route::conf($conf);
689 my $au = $r->addparent($parent);
690 if ($r->flags != $flags) {
694 push @rout, $r if $h && $au;
696 my @ans = $parent->add_user($call, $flags);
697 push @rout, @ans if $h && @ans;
700 # add this station to the user database, if required
701 my $user = DXUser::get_current($ncall);
702 $user = DXUser->new($call) unless $user;
703 $user->homenode($parent->call) if !$user->homenode;
704 $user->node($parent->call);
705 $user->lastin($main::systime) unless DXChannel::get($call);
708 # send info to all logged in thingies
709 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
710 $self->tell_buddies('loginb', $call, $ncall);
713 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
714 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
728 my $ncall = $pc->[2];
729 my $ucall = $pc->[1];
731 eph_del_regex("^PC16\\^$ncall.*$ucall");
733 # do I want users from this channel?
734 unless ($self->user->wantpc16) {
735 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
739 if ($ncall eq $main::mycall) {
740 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
744 # isolate now means only accept stuff from this call only
745 if ($self->{isolate} && $ncall ne $self->{call}) {
746 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
750 my $uref = Route::User::get($ucall);
752 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
755 my $parent = Route::Node::get($ncall);
757 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
761 $dxchan = DXChannel::get($ncall);
762 if ($dxchan && $dxchan ne $self) {
763 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
768 if ($parent->via_pc92) {
769 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
774 if (DXChannel::get($ucall)) {
775 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
779 # input filter if required and then remove user if present
780 # return unless $self->in_filter_route($parent);
781 $parent->del_user($uref);
783 # send info to all logged in thingies
784 my $user = DXUser::get_current($ncall);
785 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
786 $self->tell_buddies('logoutb', $ucall, $ncall);
788 if (eph_dup($line)) {
792 $self->route_pc17($origin, $line, $parent, $uref);
793 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
805 $self->state('init');
807 my $parent = Route::Node::get($self->{call});
809 # record the type and version offered
810 if (my ($software, $version) = $pc->[1] =~ /(DXSpider|CC\s*Cluster)\s+Version: (\d+(?:\.\d+)?)/i) {
812 $version += 53 if $version < 6;
813 $self->{version} = $version;
814 $self->user->version($version);
815 $parent->version($version);
816 my ($build) = $pc->[1] =~ /Build: (\d+(?:\.\d+)?)/;
818 $self->{build} = $build;
819 $self->user->build($build);
820 $parent->build($build);
821 dbg("$self->{call} = $software version $version build $build");
822 unless ($self->is_spider) {
823 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
824 $self->user->sort('S');
828 # $self->{handle_xml}++ if DXXml::available() && $pc->[1] =~ /\bxml/;
830 dbg("$self->{call} = Unknown software ($pc->[1] $pc->[2])");
831 $self->version(50.0);
832 $self->version($pc->[2] / 100) if $pc->[2] && $pc->[2] =~ /^\d+$/;
833 $self->user->version($self->version);
836 if ($pc->[1] =~ /CC\*Cluster/i || $pc->[1] =~ /\bpc9x/i) {
837 if ($self->{isolate}) {
838 dbg("$self->{call} pc9x recognised, but node is isolated, using old protocol");
839 } elsif (!$self->user->wantpc9x) {
840 dbg("$self->{call} pc9x explicitly switched off, using old protocol");
842 $self->{do_pc9x} = 1;
843 dbg("$self->{call} Set do PC9x");
847 # first clear out any nodes on this dxchannel
848 my @rout = $parent->del_nodes;
849 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
850 $self->send_local_config();
858 my $homenode = shift;
860 # add this station to the user database, if required (don't remove SSID from nodes)
861 my $user = DXUser::get_current($call);
863 $user = DXUser->new($call);
864 $user->sort($type || 'U');
865 if ($user->is_node) {
866 $user->priv(1); # I have relented and defaulted nodes
867 $user->lockout(1) if $user->is_node;
869 $user->homenode($homenode) if $homenode;
870 $user->node($homenode);
873 $user->lastin($main::systime); # this make it last longer than just this invocation
874 $user->put; # just to make sure it gets written away!!!
875 dbg("DXProt: PC92 new user record for $call created");
878 # this is to fix a problem I introduced some build ago by using this function for users
879 # whereas it was only being used for nodes.
880 if ($user->is_user && $user->lockout && ($user->priv // 0) == 1) {
883 dbg("DXProt: PC92 user record for $call depriv'd and unlocked");
889 # incoming cluster list
899 my $newline = "PC19^";
902 my (@rout, @pc92out);
904 # first get the INTERFACE node
905 my $parent = Route::Node::get($self->{call});
907 dbg("PCPROT: my parent $self->{call} has disappeared");
916 # We are making a major change from now on. We are only going to accept
917 # PC19s from directly connected nodes. This means that we are probably
918 # going to throw away most of the data that we are being sent.
920 # The justification for this is that most of it is wrong or out of date
923 # From now on we are only going to believe PC92 data and locally connected
926 for ($i = 1; $i < $#$pc-1; $i += 4) {
927 my $here = $pc->[$i];
928 my $call = uc $pc->[$i+1];
929 my $conf = $pc->[$i+2];
930 my $ver = $pc->[$i+3];
931 next unless defined $here && defined $conf && is_callsign($call);
933 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
935 # check for sane parameters
936 # $ver = 5000 if $ver eq '0000';
937 next unless $ver && $ver =~ /^\d+$/;
938 next if $ver < 5000; # only works with version 5 software
939 next if length $call < 3; # min 3 letter callsigns
940 next if $call eq $main::mycall || $call eq $main::myalias;
942 # check that this PC19 isn't trying to alter the wrong dxchan
944 my $dxchan = DXChannel::get($call);
946 if ($dxchan == $self) {
949 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
954 # isolate now means only accept stuff from this call only
955 if ($self->{isolate} && $call ne $self->{call}) {
956 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
960 my $user = check_add_user($call, 'A');
962 # if (eph_dup($genline)) {
963 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
969 if ($parent->via_pc92) {
970 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
975 my $r = Route::Node::get($call);
976 my $flags = Route::here($here)|Route::conf($conf);
978 # modify the routing table if it is in it, otherwise store it in the pc19list for now
981 if ($call ne $parent->call) {
982 if ($self->in_filter_route($r)) {
983 $ar = $parent->add($call, $ver, $flags);
984 # push @rout, $ar if $ar;
989 if ($r->version ne $ver || $r->flags != $flags) {
995 if ($call eq $self->{call} || $user->wantroutepc19) {
996 my $new = Route->new($call); # throw away
997 if ($self->in_filter_route($new)) {
998 my $ar = $parent->add($call, $ver, $flags);
999 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1000 push @rout, $ar if $ar;
1001 push @pc92out, $r if $h;
1008 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1009 my $mref = DXMsg::get_busy($call);
1010 $mref->stop_msg($call) if $mref;
1012 $user->lastin($main::systime) unless DXChannel::get($call);
1016 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
1017 # but remember there will only be one (pair) these because any extras will be
1020 # $self->route_pc21($self->{call}, $line, @rout);
1021 $self->route_pc19($self->{call}, $line, @rout);
1023 if (@pc92out && !$pc92_slug_changes) {
1024 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
1028 # send local configuration
1037 if ($self->{do_pc9x} && $self->{state} ne 'init92' && $self->{state} ne 'normal') {
1038 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1039 $self->{do_pc9x} = 0;
1041 $self->send_local_config;
1042 $self->send(pc22());
1043 $self->state('normal');
1044 $self->{lastping} = 0;
1045 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1048 # delete a cluster from the list
1050 # This should never occur for directly connected nodes.
1060 my $call = uc $pc->[1];
1062 eph_del_regex("^PC1[679].*$call");
1064 # if I get a PC21 from the same callsign as self then ignore it
1065 if ($call eq $self->{call}) {
1066 dbg("PCPROT: self referencing PC21 from $self->{call}");
1070 # for the above reason and also because of the check for PC21s coming
1071 # in for self->call from outside being ignored further down
1072 # we don't need any isolation code here, because we will never
1073 # act on a PC21 with self->call in it.
1075 my $parent = Route::Node::get($self->{call});
1077 dbg("PCPROT: my parent $self->{call} has disappeared");
1084 if ($call ne $main::mycall && $call ne $main::myalias) { # don't allow malicious buggers to disconnect me!
1085 my $node = Route::Node::get($call);
1088 if ($node->via_pc92) {
1089 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
1093 my $dxchan = DXChannel::get($call);
1094 if ($dxchan && $dxchan != $self) {
1095 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chan');
1100 return unless $self->in_filter_route($node);
1102 # routing objects, force a PC21 if it is local
1103 push @rout, $node->del($parent);
1104 push @rout, $call if $dxchan && @rout == 0;
1107 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chan');
1111 if (eph_dup($line)) {
1116 $self->route_pc21($origin, $line, @rout);
1117 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
1130 if ($self->{do_pc9x}) {
1131 if ($self->{state} ne 'init92' && $self->{state} ne 'normal') {
1132 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
1133 $self->{do_pc9x} = 0;
1136 $self->{lastping} = 0;
1137 $self->state('normal');
1138 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
1150 # route foreign' pc27s
1152 if ($pc->[8] ne $main::mycall) {
1153 $self->route($pc->[8], $line);
1160 my $d = cltounix($pc->[1], sprintf("%02d18Z", $pc->[2]));
1161 my $sfi = unpad($pc->[3]);
1162 my $k = unpad($pc->[4]);
1163 my $i = unpad($pc->[5]);
1164 my ($r) = $pc->[6] =~ /R=(\d+)/;
1166 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1167 dbg("PCPROT: WWV Date ($pc->[1] $pc->[2]) out of range") if isdbg('chanerr');
1171 # global wwv filtering on INPUT
1172 my @dxcc = ((Prefix::cty_data($pc->[7]))[0..2], (Prefix::cty_data($pc->[8]))[0..2]);
1173 if ($self->{inwwvfilter}) {
1174 my ($filter, $hops) = $self->{inwwvfilter}->it(@$pc[7,8], $origin, @dxcc);
1176 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
1180 $pc->[7] =~ s/-\d+$//o; # remove spotter's ssid
1181 if (Geomag::dup($d,$sfi,$k,$i,$pc->[6],$pc->[7])) {
1182 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1186 # note this only takes the first one it gets
1187 Geomag::update($d, $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1188 dbg("WWV: <$pc->[2]>, sfi=$sfi k=$k info=$i '$pc->[6]' $pc->[7]\@$pc->[8] $r route: $origin") if isdbg('progress');
1190 if (defined &Local::wwv) {
1193 $rep = Local::wwv($self, $pc->[1], $pc->[2], $sfi, $k, $i, @$pc[6..8], $r);
1198 # DON'T be silly and send on PC27s!
1199 return if $pcno == 27;
1201 # broadcast to the eager world
1202 send_wwv_spot($self, $line, $d, $pc->[2], $sfi, $k, $i, @$pc[6..8]);
1214 my $call = uc $pc->[1];
1216 $nref = Route::Node::get($call);
1217 $uref = Route::User::get($call);
1218 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1220 if (eph_dup($line)) {
1224 $nref->here($pc->[2]) if $nref;
1225 $uref->here($pc->[2]) if $uref;
1226 my $ref = $nref || $uref;
1227 return unless $self->in_filter_route($ref);
1229 $self->route_pc24($origin, $line, $ref, $pc->[3]);
1241 if ($pc->[1] ne $main::mycall) {
1242 $self->route($pc->[1], $line);
1245 if ($pc->[2] eq $main::mycall) {
1246 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chan');
1250 Log('DXProt', "Merge request for $pc->[3] spots and $pc->[4] WWV from $pc->[2]");
1254 my @in = reverse Spot::search(1, undef, undef, 0, $pc->[3]);
1257 $self->send(pc26(@{$in}[0..4], $pc->[2]));
1263 my @in = reverse Geomag::search(0, $pc->[4], time, 1);
1266 $self->send(pc27(@{$in}[0..5], $pc->[2]));
1271 sub handle_26 {goto &handle_11}
1272 sub handle_27 {goto &handle_23}
1274 # mail/file handling
1283 if ($pc->[1] eq $main::mycall) {
1285 my $sub = "DXMsg::handle_$pcno";
1288 $self->route($pc->[1], $line) unless $self->is_clx;
1292 sub handle_29 {goto &handle_28}
1293 sub handle_30 {goto &handle_28}
1294 sub handle_31 {goto &handle_28}
1295 sub handle_32 {goto &handle_28}
1296 sub handle_33 {goto &handle_28}
1306 if (eph_dup($line, $eph_pc34_restime)) {
1309 $self->process_rcmd($pc->[1], $pc->[2], $pc->[2], $pc->[3]);
1313 # remote command replies
1322 eph_del_regex("^PC35\\^$pc->[2]\\^$pc->[1]\\^");
1323 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[1], $pc->[3]);
1326 sub handle_36 {goto &handle_34}
1337 if ($pc->[1] eq $main::mycall) {
1339 my $sub = "DXDb::handle_$pcno";
1342 $self->route($pc->[1], $line) unless $self->is_clx;
1346 # node connected list from neighbour
1356 # incoming disconnect
1365 if ($pc->[1] eq $self->{call}) {
1366 $self->disconnect(1);
1368 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1372 sub handle_40 {goto &handle_28}
1383 my $call = $pc->[1];
1384 my $sort = $pc->[2];
1387 my $l = "PC41^$call^$sort";
1388 if (eph_dup($l, $eph_info_restime)) {
1392 # input filter if required
1393 # my $ref = Route::get($call) || Route->new($call);
1394 # return unless $self->in_filter_route($ref);
1396 if ($val eq $sort || $val =~ /^\s*$/) {
1397 dbg('PCPROT: invalid value') if isdbg('chanerr');
1401 if ($call eq $main::mycall || $call eq $main::myalias) {
1402 dbg "DXPROT: PC41 trying to update $call from outside via $origin, ignored";
1405 my $chan = DXChannel::get($call);
1407 dbg "DXPROT: PC41 trying to update online $call from outside via $origin, ignored";
1411 # add this station to the user database, if required
1412 my $user = DXUser::get_current($call);
1413 $user = DXUser->new($call) unless $user;
1416 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1417 dbg("PCPROT: invalid name") if isdbg('chanerr');
1421 } elsif ($sort == 2) {
1423 } elsif ($sort == 3) {
1424 if (is_latlong($val)) {
1425 my ($lat, $long) = DXBearing::stoll($val);
1426 $user->lat($lat) if $lat;
1427 $user->long($long) if $long;
1428 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1430 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1433 } elsif ($sort == 4) {
1434 $user->homenode($val);
1435 } elsif ($sort == 5) {
1436 if (is_qra(uc $val)) {
1437 my ($lat, $long) = DXBearing::qratoll(uc $val);
1438 $user->lat($lat) if $lat && !$user->lat;
1439 $user->long($long) if $long && !$user->long;
1440 $user->qra(uc $val);
1442 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1446 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1449 unless ($self->{isolate}) {
1450 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1453 # perhaps this IS what we want after all
1454 # $self->route_pc41($ref, $call, $sort, $val, $pc->[4]);
1457 sub handle_42 {goto &handle_28}
1461 sub handle_44 {goto &handle_37}
1462 sub handle_45 {goto &handle_37}
1463 sub handle_46 {goto &handle_37}
1464 sub handle_47 {goto &handle_37}
1465 sub handle_48 {goto &handle_37}
1467 # message and database
1476 if (eph_dup($line)) {
1480 if ($pc->[1] eq $main::mycall) {
1481 DXMsg::handle_49($self, @$pc);
1483 $self->route($pc->[1], $line) unless $self->is_clx;
1487 # keep alive/user list
1496 return if (eph_dup($line));
1498 my $call = $pc->[1];
1500 my $node = Route::Node::get($call);
1502 return unless $node->call eq $self->{call};
1503 $node->usercount($pc->[2]) unless $node->users;
1505 $node->PC92C_dxchan($self->call, $pc->[-1]);
1507 # input filter if required
1508 # return unless $self->in_filter_route($node);
1510 unless ($self->{isolate}) {
1511 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1513 # $self->route_pc50($origin, $line, $node, $pc->[2], $pc->[3]) unless eph_dup($line);
1517 # incoming ping requests/answers
1527 my $from = $pc->[2];
1528 my $flag = $pc->[3];
1530 if ($to eq $main::myalias) {
1531 dbg("DXPROT: Ping addressed to \$myalias ($main::myalias), ignored") if isdbg('chan');
1536 if ($to eq $main::mycall) {
1538 $self->send(pc51($from, $to, '0'));
1540 DXXml::Ping::handle_ping_reply($self, $from);
1543 if (eph_dup($line)) {
1546 # route down an appropriate thingy
1547 $self->route($to, $line);
1551 sub handle_61 { goto &handle_11; }
1553 # dunno but route it
1562 my $call = $pc->[1];
1563 if ($call ne $main::mycall) {
1564 $self->route($call, $line);
1577 my $call = $pc->[1];
1580 my $d = cltounix($call, sprintf("%02d18Z", $pc->[2]));
1581 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $pc->[2] < 0 || $pc->[2] > 23) {
1582 dbg("PCPROT: WCY Date ($call $pc->[2]) out of range") if isdbg('chanerr');
1585 $pc = [ map { unpad($_) } @$pc ];
1587 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1591 my $wcy = WCY::update($d, @$pc[2..12]);
1592 dbg("WCY: <$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');
1594 if (defined &Local::wcy) {
1597 $rep = Local::wcy($self, @$pc[1..12]);
1602 # broadcast to the eager world
1603 send_wcy_spot($self, $line, $d, @$pc[2..12]);
1606 # remote commands (incoming)
1615 $self->process_rcmd($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1618 # remote command replies
1627 $self->process_rcmd_reply($pc->[1], $pc->[2], $pc->[3], $pc->[4]);
1630 # decode a pc92 call: flag call : version : build
1631 sub _decode_pc92_call
1634 my @part = split /:/, $icall;
1635 my ($flag, $call) = unpack "A A*", $part[0];
1636 unless (defined $flag && $flag ge '0' && $flag le '7') {
1637 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1640 unless ($call && is_callsign($call)) {
1641 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1644 my $is_node = $flag & 4;
1645 my $is_extnode = $flag & 2;
1646 my $here = $flag & 1;
1647 my $version = $part[1] || 0;
1648 my $build = $part[2] || 0;
1649 my $ip = $part[3] || '';
1651 # remember that, at this stage, IPV6 addresses have : replaced by ,
1652 if (length $version > 4 && $version =~ /[,\.][\da-f]{1,4}/i) {
1656 $version =~ s/\D//g;
1657 $version = 0 unless $version && $version =~ /^[0-9]+$/;
1660 $build = 0 unless $build && $build =~ /^[0-9]+$/;
1663 $ip =~ s/^::ffff://i;
1664 $ip = '' unless is_ipaddr($ip);
1666 dbg("'$icall' = '" . join("', '", $call, $is_node, $is_extnode, $here, $version, $build, $ip) . "'") if isdbg('pc92');
1667 return ($call, $is_node, $is_extnode, $here, $version+0, $build+0, $ip);
1670 # decode a pc92 call: flag call : version : build
1671 sub _encode_pc92_call
1675 # plain call or value
1676 return $ref unless ref $ref;
1678 my $ext = shift || 0;
1680 my $call = $ref->call;
1682 $flag |= $ref->here ? 1 : 0;
1683 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1685 my $dxchan = DXChannel::get($call);
1686 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1687 if (($ext & 1) && $ref->version) {
1688 my $version = $ref->version || 1.0;
1689 $version = $version * 100 + 5300 if $version < 50;
1690 $extra .= ":" . $version;
1693 if (($ext & 2) && $ref->ip) {
1696 $extra .= ':' . $ip;
1699 return "$flag$call$extra";
1712 my ($call, $is_node, $is_extnode, $here, $version, $build, $ip) = @$s;
1715 # remove spurious IPV6 prefix on IPV4 addresses
1720 my $ncall = $parent->call;
1721 if ($ncall ne $call) {
1725 # normalise call, delete any unnormalised calls in the users file.
1726 # then ignore this thingy
1727 my $normcall = normalise_call($call);
1728 if ($normcall ne $call) {
1729 next if DXChannel::get($call);
1730 $user = DXUser::get($call);
1731 dbg("DXProt::_add_thingy call $call normalised to $normcall, deleting spurious user $call");
1732 $user->del if $user;
1733 $call = $normcall; # this is safe because a route add will ignore duplicates
1737 dbg("ROUTE: added node $call to $ncall") if isdbg('routelow');
1738 $user = check_add_user($call, 'A');
1739 @rout = $parent->add($call, $version, Route::here($here), $ip);
1740 $r = Route::Node::get($call);
1741 $r->PC92C_dxchan($dxchan->call, $hops) if $r;
1742 if ($version && is_numeric($version) && !$r->K && !$user->K) {
1743 my $old = $user->sort;
1744 if ($user->is_ak1a && (($version >= 5455 && $build > 0) || ($version >= 3000 && $version <= 3500)) ) {
1746 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) updated to " . $user->sort);
1747 } elsif ($user->is_spider && ($version < 3000 || ($version > 4000 && $version < 5455))) {
1748 unless ($version > 0 && $build == 0) {
1751 dbg("PCPROT::_add_thingy node $call v: $version b: $build sort ($old) downgraded to " . $user->sort);
1755 $r->version($user->version) if $user->version;
1756 $r->build($user->build) if $user->build;
1757 $r->K(1) if $user->K;
1759 dbg("ROUTE: added user $call to $ncall") if isdbg('routelow');
1760 $user = check_add_user($call, 'U', $parent->call);
1761 @rout = $parent->add_user($call, Route::here($here), $ip);
1762 $dxchan->tell_buddies('loginb', $call, $ncall) if $dxchan;
1763 $r = Route::User::get($call);
1767 Log('DXProt', "PC92A $call -> $ip on $ncall");
1769 if ($pc92_slug_changes && $parent == $main::routeroot) {
1770 $things_add{$call} = Route::get($call);
1771 delete $things_del{$call};
1773 $user->close($main::systime, $ip) if $user; # this just updates lastseen and the connlist list containing the IP address
1775 dbgprintring(10) if isdbg('nologchan');
1776 dbg("DXProt::add_thingy: Trying to add parent $call to itself $ncall, ignored");
1788 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1793 $ref = Route::Node::get($call);
1794 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1795 @rout = $ref->del($parent) if $ref;
1797 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1798 $ref = Route::User::get($call);
1800 $dxchan->tell_buddies('logoutb', $call, $parent->call) if $dxchan;
1801 @rout = $parent->del_user($ref);
1804 if ($pc92_slug_changes && $parent == $main::routeroot) {
1805 $things_del{$call} = $ref unless exists $things_add{$call};
1806 delete $things_add{$call};
1812 # this will only happen if we are slugging changes and
1813 # there are some changes to be sent, it will create an add or a delete
1815 sub gen_pc92_changes
1817 my @add = values %things_add;
1818 my @del = values %things_del;
1819 return (\@add, \@del);
1822 sub clear_pc92_changes
1824 %things_add = %things_del = ();
1825 $last_pc92_slug = $main::systime;
1834 return $_last_pc9x_id;
1839 if (!$_last_time || $_last_time != $main::systime) {
1840 $_last_time = $main::systime;
1842 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1845 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1856 # check that the time is between 0 >= $t < 86400
1857 unless ($t >= 0 && $t < 86400) {
1858 dbg("PCPROT: time invalid t: $t, ignored") if isdbg('chanerr');
1862 # check that the time of this pc9x is within tolerance (default 15 mins either way)
1863 my $now = $main::systime - $main::systime_daystart ;
1864 my $diff = abs($now - $t);
1865 unless ($diff < $pc9x_time_tolerance || 86400 - $diff < $pc9x_time_tolerance) {
1866 my $c = ref $call ? $call->call : $call;
1867 dbg("PC9XERR: $c time out of range t: $t now: $now diff: $diff > $pc9x_time_tolerance, ignored") if isdbg('chan');
1871 my $parent = ref $call ? $call : Route::Node::get($call);
1873 # we only do this for external calls whose routing table
1874 # record come and go. The reference for mycall is permanent
1875 # and not that frequently used, it also never times out, so
1876 # the id on it is completely unreliable. Besides, only commands
1877 # originating on this box will go through this code...
1878 if ($parent->call ne $main::mycall) {
1879 my $lastid = $parent->lastid;
1880 if (defined $lastid) {
1882 # note that this is where we determine whether this pc9x has come in yesterday
1883 # but is still greater (modulo 86400) than the lastid or is simply an old
1884 # duplicate sentence. To determine this we need to do some module 86400
1885 # arithmetic. High numbers mean that this is an old duplicate sentence,
1886 # low numbers that it is a new sentence.
1888 # Typically you will see yesterday being taken on $t = 84, $lastid = 86235
1889 # and old dupes with $t = 234, $lastid = 256 (which give answers 249 and
1890 # 86378 respectively in the calculation below).
1892 if ($t+86400-$lastid > $pc9x_past_age) {
1893 dbg("PCPROT: dup id on $t <= lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1896 } elsif ($t == $lastid) {
1897 dbg("PCPROT: dup id on $t == lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1900 # check that if we have a low number in lastid that yesterday's numbers
1901 # (likely in the 85000+ area) don't override them, thus causing flip flopping
1902 if ($lastid+86400-$t < $pc9x_past_age) {
1903 dbg("PCPROT: dup id on $t in yesterday, lastid $lastid, ignored") if isdbg('chanerr') || isdbg('pc92dedupe');
1910 $parent = Route::Node->new($call);
1912 dbg("PCPROT: $call does not exist, ignored") if isdbg('pc92dedupe');
1915 if (isdbg('pc92dedupe')) {
1916 my $exists = exists $parent->{lastid}; # naughty, naughty :-)
1917 my $val = $parent->{lastid};
1918 my $s = $exists ? (defined $val ? $val : 'exists/undef') : 'undef';
1919 dbg("PCPROT: $call pc92 id lastid $s -> $t");
1921 $parent->lastid($t);
1926 sub pc92_handle_first_slot
1933 my $oparent = $parent;
1937 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$slot;
1938 if ($call && $is_node) {
1939 if ($call eq $main::mycall) {
1940 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::mycall ($main::mycall), ignored");
1943 if ($call eq $main::myalias) {
1944 LogDbg('err', "PCPROT: $self->{call} : $call looped back onto \$main::myalias ($main::myalias), ignored");
1947 # this is only accepted from my "self".
1948 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1949 # locally connected. Local nodes always take precedence. But we remember the lastid
1950 # to try to reduce the number of dupe PC92s for this external node.
1951 if (DXChannel::get($call) && $call ne $self->{call}) {
1952 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1953 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1957 # reparent to external node (note that we must have received a 'C' or 'A' record
1958 # from the true parent node for this external before we get one for the this node
1959 unless ($parent = Route::Node::get($call)) {
1960 if ($is_extnode && $oparent) {
1961 @radd = _add_thingy($oparent, $slot, $self, $hops);
1964 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1968 $parent = check_pc9x_t($call, $t, 92) || return;
1969 $parent->via_pc92(1);
1970 $parent->PC92C_dxchan($self->{call}, $hops);
1973 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1976 $parent->here(Route::here($here));
1977 $parent->version($version || $pc19_version) if $version;
1978 $parent->build($build) if $build;
1979 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
1980 return ($parent, @radd);
1983 # DXSpider routing entries
1994 my $pcall = $pc->[1];
1996 my $sort = $pc->[3];
1997 my $hops = $pc->[-1];
1999 # this catches loops of A/Ds
2000 # if (eph_dup($line, $pc9x_dupe_age)) {
2004 if ($pcall eq $main::mycall) {
2005 LogDbg('err', "PCPROT: looped back, ignored");
2009 if ($pcall eq $main::myalias) {
2010 LogDbg('err', "PCPROT: looped back to \$myalias ($main::myalias), misconfiguration ignored");
2014 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
2015 if ($self->{isolate}) {
2016 dbg("DXPROT: PC9x received, but $pcall is isolated, ignored");
2018 } elsif (!$self->user->wantpc9x) {
2019 dbg("DXPROT: PC9x explicitly switched off on $pcall, ignored");
2022 $self->state('init92');
2023 $self->{do_pc9x} = 1;
2024 dbg("DXPROT: Do pc9x set on $pcall");
2027 unless ($self->{do_pc9x}) {
2028 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2032 # don't create routing entries for D records that don't already exist
2033 # this is what causes all those PC92 loops!
2034 my $parent = check_pc9x_t($pcall, $t, 92, $sort ne 'D') || return;
2035 my $oparent = $parent;
2037 $parent->do_pc9x(1);
2038 $parent->via_pc92(1);
2040 if ($sort eq 'F' || $sort eq 'R') {
2042 # this is the route finding section
2043 # here is where the consequences of the 'find' command
2046 my $from = $pc->[4];
2047 my $target = $pc->[5];
2053 if ($ref = DXChannel::get($target)) {
2054 $flag = 1; # we are directly connected
2056 $ref = Route::get($target);
2057 $dxchan = $ref->dxchan;
2060 if ($ref && $flag && $dxchan) {
2061 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
2064 } elsif ($sort eq 'R') {
2065 if (my $dxchan = DXChannel::get($from)) {
2066 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @$pc[6,7]);
2068 my $ref = Route::get($from);
2070 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
2072 $_->send($line) for @dxchan;
2074 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2077 dbg("PCPROT: $self->{call} : type R no return route, ignored") if isdbg('chanerr') || isdbg('route');
2083 } elsif ($sort eq 'K') {
2084 $pc92Kin += length $line;
2086 # remember the last channel we arrived on
2087 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2089 my @ent = _decode_pc92_call($pc->[4]);
2094 ($parent, $add) = $self->pc92_handle_first_slot(\@ent, $parent, $t, $hops);
2095 return unless $parent; # dupe
2097 push @radd, $add if $add;
2099 my $call = $parent->call;
2100 my $version = $ent[4] || 0;
2101 my $build = $ent[5] || 0;
2103 my $oldbuild = $parent->build || 0;
2104 my $oldversion = $parent->version || 0;
2105 my $user = check_add_user($parent->call, 'S');
2106 my $oldsort = $user->sort // '';
2108 dbg("PCPROT: PC92 K v: $version ov: $oldversion b: $build ob: $oldbuild pk: " . ($parent->K || '0') . " uk: " . ($user->K || 0)) if isdbg('pc92k');
2110 if (is_numeric($version) || is_numeric($build)) {
2112 if (($oldversion ne $version || $build ne $oldbuild)) {
2113 dbg("PCPROT: PC92 K node $call updated version: $version (was $oldversion) build: $build (was $oldbuild)");
2114 $user->version($parent->version($version));
2115 $user->build($parent->build($build));
2118 if ($oldsort ne 'S') {
2119 dbg("PCPROT: PC92 K node $call updated sort: $sort (was $oldsort)");
2124 dbg("PCPROT: PC92 K node $call updated - marked as PC92 K user");
2128 $user->put if $changed;
2129 $parent->K(1); # mark this as come in on a K
2131 dbg("DXProt PC92 K version call $call: invalid version: '$version' or build: '$version', ignored");
2133 dbg("ROUTE: reset obscount on $call now " . $parent->obscount) if isdbg('obscount');
2135 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
2137 $pc92Ain += length $line if $sort eq 'A';
2138 $pc92Cin += length $line if $sort eq 'C';
2139 $pc92Din += length $line if $sort eq 'D';
2141 # remember the last channel we arrived on
2142 $parent->PC92C_dxchan($self->{call}, $hops) unless $self->{call} eq $parent->call;
2144 # this is the main route section
2145 # here is where all the routes are created and destroyed
2147 # cope with missing duplicate node calls in the first slot
2148 my $me = $pc->[4] || '';
2149 $me ||= _encode_pc92_call($parent) unless $me ;
2151 my @ent = map {my @a = _decode_pc92_call($_); @a ? \@a : ()} grep {$_ && /^[0-7]/} $me, @$pc[5 .. $#$pc];
2155 # look at the first one which will always be a node of some sort
2156 # except in the case of 'A' or 'D' in which the $pcall is used
2157 # otherwise use the node call and update any information
2158 # that needs to be done.
2161 ($parent, $add) = $self->pc92_handle_first_slot($ent[0], $parent, $t, $hops);
2162 return unless $parent; # dupe
2165 push @radd, $add if $add;
2168 # do a pass through removing any references to either mycall
2172 next unless $_ && @$_;
2173 if ($_->[0] eq $main::mycall) {
2174 dbg("PCPROT: $self->{call} : type $sort $_->[0] refers to me, ignored") if isdbg('route');
2177 if ($_->[0] eq $main::myalias && $_->[1] || $_->[0] eq $main::mycall && $_->[1] == 0) {
2178 LogDbg('err',"PCPROT: $self->{call} : type $sort $_->[0] trying to change type to " . $_->[1]?"Node":"User" . ", ignored");
2187 push @radd, _add_thingy($parent, $_, $self, $hops);
2189 } elsif ($sort eq 'D') {
2191 push @rdel, _del_thingy($parent, $_, $self);
2193 } elsif ($sort eq 'C') {
2194 my (@nodes, @users);
2196 # we reset obscounts on config records as well as K records
2198 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
2201 foreach my $r (@nent) {
2202 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
2205 push @nodes, $r->[0];
2207 push @users, $r->[0];
2210 dbg("PCPROT: $self->{call} : pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr') || isdbg('route');
2214 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
2217 foreach my $r (@nent) {
2220 push @radd,_add_thingy($parent, $r, $self, $hops) if grep $call eq $_, (@$nnodes, @$nusers);
2224 foreach my $r (@$dnodes) {
2225 push @rdel,_del_thingy($parent, [$r, 1], $self);
2227 foreach my $r (@$dusers) {
2228 push @rdel,_del_thingy($parent, [$r, 0], $self);
2231 # remember this last PC92C for rebroadcast on demand
2232 $parent->last_PC92C($line);
2234 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
2238 foreach my $r (@rdel) {
2241 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
2242 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
2244 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
2245 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
2246 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
2247 $self->route_pc19($pcall, undef, @pc19) if @pc19;
2248 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
2251 # broadcast it if we get here
2252 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2255 # get all the routes for a thing, bearing in mind that the thing (e.g. a user)
2256 # might be on two or more nodes at the same time or that there may be more than
2257 # one equal distance neighbour to a node.
2259 # What this means that if sh/route g1tlh shows that he is on (say) two nodes, then
2260 # a Route::findroutes is done on each of those two nodes, the best route(s) taken from
2261 # each and then combined to give a set of dxchans to send the PC9x record down
2263 sub find_pc9x_routes
2266 my $ref = Route::get($to);
2270 if ($ref->isa('Route::User')) {
2271 my $dxchan = DXChannel::get($to);
2272 push @parent, $to if $dxchan;
2273 push @parent, $ref->parents;
2277 foreach my $p (@parent) {
2279 my @routes = Route::findroutes($p);
2280 foreach my $r (@routes) {
2281 $lasthops = $r->[0] unless defined $lasthops;
2282 if ($r->[0] == $lasthops) {
2283 $cand{$r->[1]->call} = $r->[1];
2289 return values %cand;
2300 # $self->{do_pc9x} ||= 1;
2302 my $pcall = $pc->[1]; # this is now checked earlier
2304 # remember that we are converting PC10->PC93 and self will be $main::me if it
2306 unless ($self->{do_pc9x}) {
2307 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
2312 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
2314 my $to = uc $pc->[3];
2315 my $from = uc $pc->[4];
2316 my $via = uc $pc->[5];
2317 my $text = $pc->[6];
2318 my $onode = uc $pc->[7];
2319 $onode = $pcall if @$pc <= 8;
2321 # this is catch loops caused by bad software ...
2322 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
2326 if (isdbg('progress')) {
2327 my $vs = $via ne '*' ? " via $via" : '';
2328 my $s = "ANNTALK: $from\@$onode$vs -> $to '$text' route: $origin";
2332 # if this is a 'bad spotter' user then ignore it
2334 $nossid =~ s/-\d+$//;
2335 if ($badspotter->in($nossid)) {
2336 dbg($line) if isdbg('nologchan');
2337 dbg("PCPROT: Bad Spotter, dropped");
2341 # ignore PC93 coming in from outside this node with a target of local
2342 if ($to eq 'LOCAL' && $self != $main::me) {
2343 dbg("PCPROT: incoming LOCAL chat not from local node, ignored") if isdbg('chanerr');
2347 # will we allow it at all?
2350 if (@bad = BadWords::check($text)) {
2351 my $bw = join ', ', @bad;
2352 dbg($line) if isdbg('nologchan');
2353 dbg("PCPROT: Badwords: '$bw', dropped");
2358 # if it is routeable then then treat it like a talk
2359 my $ref = Route::get($to);
2363 # convert to PC10 or local talks where appropriate
2364 # PC93 capable nodes of the same hop count all get a copy
2365 # if there is a PC10 node then it will get a copy and that
2366 # will be it. Hopefully such a node will not figure highly
2367 # in the route list, unless it is local, 'cos it don't issue PC92s!
2368 # note that both local and PC93s at the same time are possible if the
2369 # user on more than one node.
2370 my @routes = find_pc9x_routes($to);
2372 foreach $dxchan (@routes) {
2373 if (ref $dxchan && $dxchan->isa('DXChannel')) {
2374 if ($dxchan->{do_pc9x}) {
2375 $dxchan->send($line);
2377 $dxchan->talk($from, $to, $via, $text, $onode);
2380 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
2385 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
2387 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
2388 my $wx = $to eq 'WX' ? '1' : '0';
2389 my $local = $via eq 'LOCAL' ? '*' : $via;
2391 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
2392 return if $via eq 'LOCAL';
2393 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
2394 # chat messages really only locally connected users
2395 $self->send_chat(1, $line, $from, '*', $text, $to, $pcall, '0');
2398 # broadcast this chat sentence everywhere unless it is targetted to 'LOCAL'
2399 $self->broadcast_route_pc9x($pcall, undef, $line, 0) unless $to eq 'LOCAL' || $via eq 'LOCAL';
2402 # if get here then rebroadcast the thing with its Hop count decremented (if
2403 # there is one). If it has a hop count and it decrements to zero then don't
2406 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
2418 unless (eph_dup($line)) {
2420 my $pcall = $pc->[1];
2421 unless (is_callsign($pcall)) {
2422 dbg("PCPROT: invalid callsign string '$pc->[1]', ignored") if isdbg('chanerr');
2426 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
2427 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
2429 unless ($self->{isolate}) {
2430 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me