3 # This module impliments the handlers for the protocal mode for a dx cluster
5 # Copyright (c) 1998-2006 Dirk Koopman G1TLH
40 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
41 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
42 $pingint $obscount %pc19list $chatdupeage $chatimportfn
43 $investigation_int $pc19_version $myprot_version
44 %nodehops $baddx $badspotter $badnode $censorpc
45 $allowzero $decode_dk0wcy $send_opernam @checklist
46 $eph_pc15_restime $pc9x_past_age $pc9x_future_age
47 $pc10_dupe_age $pc92_slug_changes $last_pc92_slug
50 $pc9x_past_age = 62*60; # maximum age in the past of a px9x (a config record might be the only
51 # thing a node might send - once an hour)
52 $pc9x_future_age = 5*60; # maximum age in the future ditto
53 $pc10_dupe_age = 45; # just something to catch duplicate PC10->PC93 conversions
54 $pc92_slug_changes = 60; # slug any changes going outward for this long
55 $last_pc92_slug = 0; # the last time we sent out any delayed add or del PC92s
57 # incoming talk commands
65 # this is to catch loops caused by bad software ...
66 if (eph_dup($line, $pc10_dupe_age)) {
70 # will we allow it at all?
73 if (@bad = BadWords::check($_[3])) {
74 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
79 # is it for me or one of mine?
80 my ($from, $to, $via, $call, $dxchan);
89 # if this is a 'nodx' node then ignore it
90 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
91 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
95 # if this is a 'bad spotter' user then ignore it
98 if ($badspotter->in($nossid)) {
99 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
103 # if we are converting announces to talk is it a dup?
105 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
106 dbg("PCPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
111 # remember a route to this node and also the node on which this user is
112 RouteDB::update($_[6], $self->{call});
113 # RouteDB::update($to, $_[6]);
115 # convert this to a PC93, coming from mycall with origin set and process it as such
116 $main::me->normal(pc93($to, $from, $via, $_[3], $_[6]));
127 # route 'foreign' pc26s
129 if ($_[7] ne $main::mycall) {
130 $self->route($_[7], $line);
135 # is the spotted callsign blank? This should really be trapped earlier but it
136 # could break other protocol sentences. Also check for lower case characters.
137 if ($_[2] =~ /^\s*$/) {
138 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
141 if ($_[2] =~ /[a-z]/) {
142 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
147 # if this is a 'nodx' node then ignore it
148 if ($badnode->in($_[7])) {
149 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
153 # if this is a 'bad spotter' user then ignore it
155 $nossid =~ s/-\d+$//;
156 if ($badspotter->in($nossid)) {
157 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
161 # convert the date to a unix date
162 my $d = cltounix($_[3], $_[4]);
163 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
164 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
165 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
170 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
171 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
176 $_[5] =~ s/^\s+//; # take any leading blanks off
177 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
178 if ($_[2] =~ /BUST\w*$/) {
179 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
184 if (@bad = BadWords::check($_[5])) {
185 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
191 # RouteDB::update($_[7], $self->{call});
192 # RouteDB::update($_[6], $_[7]);
194 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]);
195 # global spot filtering on INPUT
196 if ($self->{inspotsfilter}) {
197 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
199 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
204 # this goes after the input filtering, but before the add
205 # so that if it is input filtered, it isn't added to the dup
206 # list. This allows it to come in from a "legitimate" source
207 if (Spot::dup(@spot[0..4,5])) {
208 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
216 # @spot at this point contains:-
217 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
218 # then spotted itu, spotted cq, spotters itu, spotters cq
219 # you should be able to route on any of these
222 # fix up qra locators of known users
223 my $user = DXUser->get_current($spot[4]);
225 my $qra = $user->qra;
226 unless ($qra && is_qra($qra)) {
227 my $lat = $user->lat;
228 my $long = $user->long;
229 if (defined $lat && defined $long) {
230 $user->qra(DXBearing::lltoqra($lat, $long));
235 # send a remote command to a distant cluster if it is visible and there is no
236 # qra locator and we havn't done it for a month.
238 unless ($user->qra) {
240 my $to = $user->homenode;
241 my $last = $user->lastoper || 0;
242 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
243 my $cmd = "forward/opernam $spot[4]";
244 # send the rcmd but we aren't interested in the replies...
245 my $dxchan = $node->dxchan;
246 if ($dxchan && $dxchan->is_clx) {
247 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
249 route(undef, $to, pc34($main::mycall, $to, $cmd));
253 $node = Route::Node::get($to);
255 $dxchan = $node->dxchan;
256 if ($dxchan && $dxchan->is_clx) {
257 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
259 route(undef, $to, pc34($main::mycall, $to, $cmd));
263 $user->lastoper($main::systime);
272 $r = Local::spot($self, @spot);
274 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
277 # DON'T be silly and send on PC26s!
278 return if $pcno == 26;
280 # send out the filtered spots
281 send_dx_spot($self, $line, @spot) if @spot;
292 # announce duplicate checking
293 $_[3] =~ s/^\s+//; # remove leading blanks
297 if (@bad = BadWords::check($_[3])) {
298 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
303 # if this is a 'nodx' node then ignore it
304 if ($badnode->in($_[5])) {
305 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
309 # if this is a 'bad spotter' user then ignore it
311 $nossid =~ s/-\d+$//;
312 if ($badspotter->in($nossid)) {
313 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
320 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
321 $self->send_chat(0, $line, @_[1..6]);
322 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
325 # RouteDB::update($_[5], $self->{call});
326 # RouteDB::update($_[1], $_[5]);
328 # ignore something that looks like a chat line coming in with sysop
329 # flag - this is a kludge...
330 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
331 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
335 # here's a bit of fun, convert incoming ann with a callsign in the first word
336 # or one saying 'to <call>' to a talk if we can route to the recipient
338 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
340 my $ref = Route::get($call);
342 $dxchan = $ref->dxchan;
343 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
350 $self->send_announce(0, $line, @_[1..6]);
352 $self->route($_[2], $line);
363 if (eph_dup($line, $eph_pc15_restime)) {
366 unless ($self->{isolate}) {
367 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
383 my $newline = "PC16^";
385 # dos I want users from this channel?
386 unless ($self->user->wantpc16) {
387 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
392 if ($ncall eq $main::mycall) {
393 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
398 $h = 1 if DXChannel::get($ncall);
399 RouteDB::update($ncall, $self->{call}, $h);
400 if ($h && $self->{call} ne $ncall) {
401 dbg("PCPROT: trying to update a local node, ignored") if isdbg('chanerr');
405 if (eph_dup($line)) {
409 # isolate now means only accept stuff from this call only
410 if ($self->{isolate} && $ncall ne $self->{call}) {
411 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
415 my $parent = Route::Node::get($ncall);
418 $dxchan = $parent->dxchan;
419 if ($dxchan && $dxchan ne $self) {
420 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
424 # input filter if required
425 return unless $self->in_filter_route($parent);
427 $parent = Route::Node->new($ncall);
431 if ($parent->via_pc92) {
432 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
439 for ($i = 2; $i < $#_; $i++) {
440 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
441 next unless $call && $conf && defined $here && is_callsign($call);
442 next if $call eq $main::mycall;
444 eph_del_regex("^PC17\\^$call\\^$ncall");
446 $conf = $conf eq '*';
448 # reject this if we think it is a node already
449 my $r = Route::Node::get($call);
450 my $u = DXUser->get_current($call) unless $r;
451 if ($r || ($u && $u->is_node)) {
452 dbg("PCPROT: $call is a node") if isdbg('chanerr');
456 $r = Route::User::get($call);
457 my $flags = Route::here($here)|Route::conf($conf);
460 my $au = $r->addparent($parent);
461 if ($r->flags != $flags) {
465 push @rout, $r if $h && $au;
467 my @ans = $parent->add_user($call, $flags);
468 push @rout, @ans if $h && @ans;
471 # add this station to the user database, if required
472 my $user = DXUser->get_current($ncall);
473 $user = DXUser->new($call) unless $user;
474 $user->homenode($parent->call) if !$user->homenode;
475 $user->node($parent->call);
476 $user->lastin($main::systime) unless DXChannel::get($call);
479 # send info to all logged in thingies
480 $self->tell_login('loginu', "$ncall: $call") if $user->is_local_node;
481 $self->tell_buddies('loginb', $call, $ncall);
484 $self->route_pc16($origin, $line, $parent, @rout) if @rout;
485 # $self->route_pc92a($main::mycall, undef, $parent, @rout) if $h && $self->{state} eq 'normal';
500 eph_del_regex("^PC16\\^$ncall.*$ucall");
502 # do I want users from this channel?
503 unless ($self->user->wantpc16) {
504 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
508 if ($ncall eq $main::mycall) {
509 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
513 # isolate now means only accept stuff from this call only
514 if ($self->{isolate} && $ncall ne $self->{call}) {
515 dbg("PCPROT: $self->{call} isolated, $ncall ignored") if isdbg('chanerr');
519 RouteDB::delete($ncall, $self->{call});
521 my $uref = Route::User::get($ucall);
523 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
526 my $parent = Route::Node::get($ncall);
528 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
532 $dxchan = DXChannel::get($ncall);
533 if ($dxchan && $dxchan ne $self) {
534 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
539 if ($parent->via_pc92) {
540 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
545 if (DXChannel::get($ucall)) {
546 dbg("PCPROT: trying do disconnect local user, ignored") if isdbg('chanerr');
550 # input filter if required and then remove user if present
551 # return unless $self->in_filter_route($parent);
552 $parent->del_user($uref);
554 # send info to all logged in thingies
555 my $user = DXUser->get_current($ncall);
556 $self->tell_login('logoutu', "$ncall: $ucall") if $user && $user->is_local_node;
557 $self->tell_buddies('logoutb', $ucall, $ncall);
559 if (eph_dup($line)) {
563 $self->route_pc17($origin, $line, $parent, $uref);
564 # $self->route_pc92d($main::mycall, undef, $parent, $uref) if $dxchan;
574 $self->state('init');
576 my $parent = Route::Node::get($self->{call});
578 # record the type and version offered
579 if (my ($version) = $_[1] =~ /DXSpider Version: (\d+\.\d+)/) {
580 $self->{version} = 53 + $version;
581 $self->user->version(53 + $version);
582 $parent->version(0 + $version);
583 my ($build) = $_[1] =~ /Build: (\d+(?:\.\d+)?)/;
584 $self->{build} = 0 + $build;
585 $self->user->build(0 + $build);
586 $parent->build(0 + $build);
587 dbg("DXSpider version $version build $build");
588 unless ($self->is_spider) {
589 dbg("Change U " . $self->user->sort . " C $self->{sort} -> S");
590 $self->user->sort('S');
594 # $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml/;
596 dbg("Unknown software");
597 $self->version(50.0);
598 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
599 $self->user->version($self->version);
602 if ($_[1] =~ /\bpc9x/) {
603 if ($self->{isolate}) {
604 dbg("pc9x recognised, but $self->{call} is isolated, using old protocol");
605 } elsif (!$self->user->wantpc9x) {
606 dbg("pc9x explicitly switched off on $self->{call}, using old protocol");
608 $self->{do_pc9x} = 1;
609 dbg("Do px9x set on $self->{call}");
613 # first clear out any nodes on this dxchannel
614 my @rout = $parent->del_nodes;
615 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
616 $self->send_local_config();
624 # add this station to the user database, if required (don't remove SSID from nodes)
625 my $user = DXUser->get_current($call);
627 $user = DXUser->new($call);
628 $user->priv(1); # I have relented and defaulted nodes
630 $user->homenode($call);
633 $user->sort('A') unless $user->is_node;
637 # incoming cluster list
646 my $newline = "PC19^";
649 my (@rout, @pc92out);
651 # first get the INTERFACE node
652 my $parent = Route::Node::get($self->{call});
654 dbg("PCPROT: my parent $self->{call} has disappeared");
663 # We are making a major change from now on. We are only going to accept
664 # PC19s from directly connected nodes. This means that we are probably
665 # going to throw away most of the data that we are being sent.
667 # The justification for this is that most of it is wrong or out of date
670 # From now on we are only going to believe PC92 data and locally connected
673 for ($i = 1; $i < $#_-1; $i += 4) {
675 my $call = uc $_[$i+1];
678 next unless defined $here && defined $conf && is_callsign($call);
680 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
682 # check for sane parameters
683 # $ver = 5000 if $ver eq '0000';
684 next unless $ver && $ver =~ /^\d+$/;
685 next if $ver < 5000; # only works with version 5 software
686 next if length $call < 3; # min 3 letter callsigns
687 next if $call eq $main::mycall;
689 # check that this PC19 isn't trying to alter the wrong dxchan
691 my $dxchan = DXChannel::get($call);
693 if ($dxchan == $self) {
696 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
701 # isolate now means only accept stuff from this call only
702 if ($self->{isolate} && $call ne $self->{call}) {
703 dbg("PCPROT: $self->{call} isolated, $call ignored") if isdbg('chanerr');
707 my $user = check_add_node($call);
709 # if (eph_dup($genline)) {
710 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
714 RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef);
717 if ($parent->via_pc92) {
718 dbg("PCPROT: non-local node controlled by PC92, ignored") if isdbg('chanerr');
723 my $r = Route::Node::get($call);
724 my $flags = Route::here($here)|Route::conf($conf);
726 # modify the routing table if it is in it, otherwise store it in the pc19list for now
729 if ($call ne $parent->call) {
730 if ($self->in_filter_route($r)) {
731 $ar = $parent->add($call, $ver, $flags);
732 # push @rout, $ar if $ar;
737 if ($r->version ne $ver || $r->flags != $flags) {
743 if ($call eq $self->{call} || $user->wantroutepc19) {
744 my $new = Route->new($call); # throw away
745 if ($self->in_filter_route($new)) {
746 my $ar = $parent->add($call, $ver, $flags);
747 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
748 push @rout, $ar if $ar;
749 push @pc92out, $r if $h;
756 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
757 my $mref = DXMsg::get_busy($call);
758 $mref->stop_msg($call) if $mref;
760 $user->lastin($main::systime) unless DXChannel::get($call);
764 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
765 # but remember there will only be one (pair) these because any extras will be
768 # $self->route_pc21($self->{call}, $line, @rout);
769 $self->route_pc19($self->{call}, $line, @rout);
771 if (@pc92out && !$pc92_slug_changes) {
772 $self->route_pc92a($main::mycall, $line, $main::routeroot, @pc92out) if $self->{state} eq 'normal';
776 # send local configuration
784 if ($self->{do_pc9x} && $self->{state} ne 'init92') {
785 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
786 $self->{do_pc9x} = 0;
788 $self->send_local_config;
790 $self->state('normal');
791 $self->{lastping} = 0;
792 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
795 # delete a cluster from the list
797 # This should never occur for directly connected nodes.
807 eph_del_regex("^PC1[679].*$call");
809 # if I get a PC21 from the same callsign as self then ignore it
810 if ($call eq $self->{call}) {
811 dbg("PCPROT: self referencing PC21 from $self->{call}");
815 # for the above reason and also because of the check for PC21s coming
816 # in for self->call from outside being ignored further down
817 # we don't need any isolation code here, because we will never
818 # act on a PC21 with self->call in it.
820 RouteDB::delete($call, $self->{call});
822 my $parent = Route::Node::get($self->{call});
824 dbg("PCPROT: my parent $self->{call} has disappeared");
831 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
832 my $node = Route::Node::get($call);
835 if ($node->via_pc92) {
836 dbg("PCPROT: controlled by PC92, ignored") if isdbg('chanerr');
840 my $dxchan = DXChannel::get($call);
841 if ($dxchan && $dxchan != $self) {
842 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
847 return unless $self->in_filter_route($node);
849 # routing objects, force a PC21 if it is local
850 push @rout, $node->del($parent);
851 push @rout, $call if $dxchan && @rout == 0;
854 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
858 if (eph_dup($line)) {
863 $self->route_pc21($origin, $line, @rout);
864 # $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
876 if ($self->{do_pc9x}) {
877 if ($self->{state} ne 'init92') {
878 $self->send("Reseting to oldstyle routing because login call not sent in any pc92");
879 $self->{do_pc9x} = 0;
882 $self->{lastping} = 0;
883 $self->state('normal');
884 $self->route_pc92a($main::mycall, undef, $main::routeroot, Route::Node::get($self->{call}));
895 # route foreign' pc27s
897 if ($_[8] ne $main::mycall) {
898 $self->route($_[8], $line);
905 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
906 my $sfi = unpad($_[3]);
907 my $k = unpad($_[4]);
908 my $i = unpad($_[5]);
909 my ($r) = $_[6] =~ /R=(\d+)/;
911 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
912 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
916 # global wwv filtering on INPUT
917 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
918 if ($self->{inwwvfilter}) {
919 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
921 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
925 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
926 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
927 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
931 # note this only takes the first one it gets
932 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
936 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
938 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
941 # DON'T be silly and send on PC27s!
942 return if $pcno == 27;
944 # broadcast to the eager world
945 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
957 $nref = Route::Node::get($call);
958 $uref = Route::User::get($call);
959 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
961 if (eph_dup($line)) {
965 $nref->here($_[2]) if $nref;
966 $uref->here($_[2]) if $uref;
967 my $ref = $nref || $uref;
968 return unless $self->in_filter_route($ref);
970 $self->route_pc24($origin, $line, $ref, $_[3]);
980 if ($_[1] ne $main::mycall) {
981 $self->route($_[1], $line);
984 if ($_[2] eq $main::mycall) {
985 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
989 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
993 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
996 $self->send(pc26(@{$in}[0..4], $_[2]));
1002 my @in = reverse Geomag::search(0, $_[4], time, 1);
1005 $self->send(pc27(@{$in}[0..5], $_[2]));
1010 sub handle_26 {goto &handle_11}
1011 sub handle_27 {goto &handle_23}
1013 # mail/file handling
1020 if ($_[1] eq $main::mycall) {
1022 my $sub = "DXMsg::handle_$pcno";
1025 $self->route($_[1], $line) unless $self->is_clx;
1029 sub handle_29 {goto &handle_28}
1030 sub handle_30 {goto &handle_28}
1031 sub handle_31 {goto &handle_28}
1032 sub handle_32 {goto &handle_28}
1033 sub handle_33 {goto &handle_28}
1041 if (eph_dup($line, $eph_pc34_restime)) {
1044 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1048 # remote command replies
1055 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1056 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1059 sub handle_36 {goto &handle_34}
1068 if ($_[1] eq $main::mycall) {
1070 my $sub = "DXDb::handle_$pcno";
1073 $self->route($_[1], $line) unless $self->is_clx;
1077 # node connected list from neighbour
1086 # incoming disconnect
1093 if ($_[1] eq $self->{call}) {
1094 $self->disconnect(1);
1096 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1100 sub handle_40 {goto &handle_28}
1113 my $l = "PC41^$call^$sort";
1114 if (eph_dup($l, $eph_info_restime)) {
1118 # input filter if required
1119 # my $ref = Route::get($call) || Route->new($call);
1120 # return unless $self->in_filter_route($ref);
1122 if ($val eq $sort || $val =~ /^\s*$/) {
1123 dbg('PCPROT: invalid value') if isdbg('chanerr');
1127 # add this station to the user database, if required
1128 my $user = DXUser->get_current($call);
1129 $user = DXUser->new($call) unless $user;
1132 if (($val =~ /spotter/i || $val =~ /self/i) && $user->name && $user->name ne $val) {
1133 dbg("PCPROT: invalid name") if isdbg('chanerr');
1134 if ($main::mycall eq 'GB7DJK' || $main::mycall eq 'GB7BAA' || $main::mycall eq 'WR3D') {
1135 DXChannel::broadcast_nodes(pc41($_[1], 1, $user->name)); # send it to everyone including me
1140 } elsif ($sort == 2) {
1142 } elsif ($sort == 3) {
1143 if (is_latlong($val)) {
1144 my ($lat, $long) = DXBearing::stoll($val);
1145 $user->lat($lat) if $lat;
1146 $user->long($long) if $long;
1147 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra;
1149 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1152 } elsif ($sort == 4) {
1153 $user->homenode($val);
1154 } elsif ($sort == 5) {
1155 if (is_qra(uc $val)) {
1156 my ($lat, $long) = DXBearing::qratoll(uc $val);
1157 $user->lat($lat) if $lat && !$user->lat;
1158 $user->long($long) if $long && !$user->long;
1159 $user->qra(uc $val);
1161 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1165 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1168 unless ($self->{isolate}) {
1169 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1172 # perhaps this IS what we want after all
1173 # $self->route_pc41($ref, $call, $sort, $val, $_[4]);
1176 sub handle_42 {goto &handle_28}
1180 sub handle_44 {goto &handle_37}
1181 sub handle_45 {goto &handle_37}
1182 sub handle_46 {goto &handle_37}
1183 sub handle_47 {goto &handle_37}
1184 sub handle_48 {goto &handle_37}
1186 # message and database
1194 if (eph_dup($line)) {
1198 if ($_[1] eq $main::mycall) {
1199 DXMsg::handle_49($self, @_);
1201 $self->route($_[1], $line) unless $self->is_clx;
1205 # keep alive/user list
1215 RouteDB::update($call, $self->{call});
1217 my $node = Route::Node::get($call);
1219 return unless $node->call eq $self->{call};
1220 $node->usercount($_[2]);
1222 # input filter if required
1223 return unless $self->in_filter_route($node);
1225 $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1229 # incoming ping requests/answers
1242 if ($to eq $main::mycall) {
1244 $self->send(pc51($from, $to, '0'));
1246 DXXml::Ping::handle_ping_reply($self, $from);
1250 RouteDB::update($from, $self->{call});
1252 if (eph_dup($line)) {
1255 # route down an appropriate thingy
1256 $self->route($to, $line);
1260 # dunno but route it
1268 if ($call ne $main::mycall) {
1269 $self->route($call, $line);
1283 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1284 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1285 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1288 @_ = map { unpad($_) } @_;
1290 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1294 my $wcy = WCY::update($d, @_[2..12]);
1298 $rep = Local::wcy($self, @_[1..12]);
1300 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1303 # broadcast to the eager world
1304 send_wcy_spot($self, $line, $d, @_[2..12]);
1307 # remote commands (incoming)
1314 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1317 # remote command replies
1324 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1327 # decode a pc92 call: flag call : version : build
1328 sub _decode_pc92_call
1331 my @part = split /:/, $icall;
1332 my ($flag, $call) = unpack "A A*", $part[0];
1333 unless (defined $flag && $flag ge '0' && $flag le '7') {
1334 dbg("PCPROT: $icall no flag byte (0-7) at front of call, ignored") if isdbg('chanerr');
1337 unless ($call && is_callsign($call)) {
1338 dbg("PCPROT: $icall no recognisable callsign, ignored") if isdbg('chanerr');
1341 my $is_node = $flag & 4;
1342 my $is_extnode = $flag & 2;
1343 my $here = $flag & 1;
1344 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);
1347 # decode a pc92 call: flag call : version : build
1348 sub _encode_pc92_call
1352 # plain call or value
1353 return $ref unless ref $ref;
1357 my $call = $ref->call;
1359 $flag |= $ref->here ? 1 : 0;
1360 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1362 my $dxchan = DXChannel::get($call);
1363 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc9x};
1365 if ($ref->version) {
1366 my $version = $ref->version || 1.0;
1367 $version = $version * 100 + 5300 if $version < 50;
1368 $extra .= ":" . $version;
1372 return "$flag$call$extra";
1382 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1387 dbg("ROUTE: added node $call to " . $parent->call) if isdbg('routelow');
1388 @rout = $parent->add($call, $version, Route::here($here));
1390 dbg("ROUTE: added user $call to " . $parent->call) if isdbg('routelow');
1391 @rout = $parent->add_user($call, Route::here($here));
1393 if ($pc92_slug_changes && $parent == $main::routeroot) {
1394 $things_add{$call} = Route::get($call);
1395 delete $things_del{$call};
1405 my ($call, $is_node, $is_extnode, $here, $version, $build) = @$s;
1410 $ref = Route::Node::get($call);
1411 dbg("ROUTE: deleting node $call from " . $parent->call) if isdbg('routelow');
1412 @rout = $ref->del($parent) if $ref;
1414 $ref = Route::User::get($call);
1415 dbg("ROUTE: deleting user $call from " . $parent->call) if isdbg('routelow');
1416 @rout = $parent->del_user($ref) if $ref;
1418 if ($pc92_slug_changes && $parent == $main::routeroot) {
1419 $things_del{$call} = $ref unless exists $things_add{$call};
1420 delete $things_add{$call};
1426 # this will only happen if we are slugging changes and
1427 # there are some changes to be sent, it will create an add or a delete
1429 sub gen_pc92_changes
1431 my @add = values %things_add;
1432 my @del = values %things_del;
1433 return (\@add, \@del);
1436 sub clear_pc92_changes
1438 %things_add = %things_del = ();
1439 $last_pc92_slug = $main::systime;
1448 return $_last_pc9x_id;
1453 if (!$_last_time || $_last_time != $main::systime) {
1454 $_last_time = $main::systime;
1456 return $_last_pc9x_id = $_last_time - $main::systime_daystart;
1459 return $_last_pc9x_id = sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1470 my $parent = ref $call ? $call : Route::Node::get($call);
1472 # we only do this for external calls whose routing table
1473 # record come and go. The reference for mycall is permanent
1474 # and not that frequently used, it also never times out, so
1475 # the id on it is completely unreliable. Besides, only commands
1476 # originating on this box will go through this code...
1477 if ($parent->call ne $main::mycall) {
1478 my $lastid = $parent->lastid || 0;
1480 if ($t+86400-$lastid > $pc9x_past_age) {
1481 dbg("PCPROT: dup id on $t <= $lastid, ignored") if isdbg('chanerr');
1484 } elsif ($t == $lastid) {
1485 dbg("PCPROT: dup id on $t == $lastid, ignored") if isdbg('chanerr');
1488 # $t > $lastid, check that the timestamp offered isn't too far away from 'now'
1489 if ($t+$main::systime_daystart-$main::systime > $pc9x_future_age ) {
1490 dbg("PCPROT: id $t too far in the future, ignored") if isdbg('chanerr');
1496 $parent = Route::Node->new($call);
1498 $parent->lastid($t) if $parent;
1503 # DXSpider routing entries
1517 if ($pcall eq $main::mycall) {
1518 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1522 if ($pcall eq $self->{call} && $self->{state} eq 'init') {
1523 if ($self->{isolate}) {
1524 dbg("PC9x received, but $pcall is isolated, ignored");
1526 } elsif (!$self->user->wantpc9x) {
1527 dbg("PC9x explicitly switched off on $pcall, ignored");
1530 $self->state('init92');
1531 $self->{do_pc9x} = 1;
1532 dbg("Do pc9x set on $pcall");
1535 unless ($self->{do_pc9x}) {
1536 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1540 my $parent = check_pc9x_t($pcall, $t, 92, 1) || return;
1541 my $oparent = $parent;
1543 $parent->do_pc9x(1);
1544 $parent->via_pc92(1);
1546 if ($sort eq 'F' || $sort eq 'R') {
1548 # this is the route finding section
1549 # here is where the consequences of the 'find' command
1559 if ($ref = DXChannel::get($target)) {
1560 $flag = 1; # we are directly connected
1562 $ref = Route::get($target);
1563 $dxchan = $ref->dxchan;
1566 if ($ref && $flag && $dxchan) {
1567 $self->send(pc92r($from, $target, $flag, int($dxchan->{pingave}*1000)));
1570 } elsif ($sort eq 'R') {
1571 if (my $dxchan = DXChannel::get($from)) {
1572 handle_pc92_find_reply($dxchan, $pcall, $from, $target, @_[6,7]);
1574 my $ref = Route::get($from);
1576 my @dxchan = grep {$_->do_pc9x} $ref->alldxchan;
1578 $_->send($line) for @dxchan;
1580 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1583 dbg("PCPROT: no return route, ignored") if isdbg('chanerr')
1588 } elsif ($sort eq 'A' || $sort eq 'D' || $sort eq 'C') {
1590 # remember the last channel we arrived on
1591 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1593 # this is the main route section
1594 # here is where all the routes are created and destroyed
1596 # cope with missing duplicate node calls in the first slot for A or D
1597 my $me = $_[4] || '';
1598 if (($sort eq 'A' || $sort eq 'D')) {
1599 $me ||= _encode_pc92_call($parent) if !$me ;
1602 dbg("PCPROT: this type of PC92 *must* have a node call in the first slot, ignored") if is_dbg('chanerr');
1607 my @ent = map {[ _decode_pc92_call($_) ]} grep {$_ && /^[0-7]/} $me, @_[5 .. $#_];
1611 # look at the first one which will always be a node of some sort
1612 # except in the case of 'A' or 'D' in which the $pcall is used
1613 # otherwise use the node call and update any information
1614 # that needs to be done.
1615 my ($call, $is_node, $is_extnode, $here, $version, $build) = @{$ent[0]};
1616 if ($call && $is_node) {
1617 if ($call eq $main::mycall) {
1618 dbg("PCPROT: $call looped back onto $main::mycall, ignored") if isdbg('chanerr');
1621 # this is only accepted from my "self".
1622 # this also kills configs from PC92 nodes with external PC19 nodes that are also
1623 # locally connected. Local nodes always take precedence. But we remember the lastid
1624 # to try to reduce the number of dupe PC92s for this external node.
1625 if (DXChannel::get($call) && $call ne $self->{call}) {
1626 $parent = check_pc9x_t($call, $t, 92); # this will update the lastid time
1627 dbg("PCPROT: locally connected node $call from other another node $self->{call}, ignored") if isdbg('chanerr');
1631 # reparent to external node (note that we must have received a 'C' or 'A' record
1632 # from the true parent node for this external before we get one for the this node
1633 unless ($parent = Route::Node::get($call)) {
1634 if ($is_extnode && $oparent) {
1635 @radd = _add_thingy($oparent, $ent[0]);
1638 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1642 $parent = check_pc9x_t($call, $t, 92) || return;
1643 $parent->via_pc92(1);
1644 $parent->PC92C_dxchan($self->{call});
1647 dbg("PCPROT: must be \$mycall or external node as first entry, ignored") if isdbg('chanerr');
1650 $parent->here(Route::here($here));
1651 $parent->version($version || $pc19_version) if $version;
1652 $parent->build($build) if $build && $build > $parent->build;
1653 $parent->PC92C_dxchan($self->{call}) unless $self->{call} eq $parent->call;
1657 # do a pass through removing any references to either locally connected nodes or mycall
1661 if ($_->[0] eq $main::mycall || DXChannel::get($_->[0])) {
1662 dbg("PCPROT: $_->[0] refers to locally connected node, ignored") if isdbg('chanerr');
1670 push @radd, _add_thingy($parent, $_);
1672 } elsif ($sort eq 'D') {
1674 push @rdel, _del_thingy($parent, $_);
1676 } elsif ($sort eq 'C') {
1677 my (@nodes, @users);
1679 # we only reset obscounts on config records
1680 $oparent->reset_obs;
1681 dbg("ROUTE: reset obscount on $pcall now " . $oparent->obscount) if isdbg('obscount');
1682 if ($oparent != $parent) {
1684 dbg("ROUTE: reset obscount on $parent->{call} now " . $parent->obscount) if isdbg('obscount');
1688 foreach my $r (@nent) {
1689 # my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1692 push @nodes, $r->[0];
1694 push @users, $r->[0];
1697 dbg("PCPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1701 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1704 foreach my $r (@nent) {
1707 push @radd,_add_thingy($parent, $r) if grep $call eq $_, (@$nnodes, @$nusers);
1711 foreach my $r (@$dnodes) {
1712 push @rdel,_del_thingy($parent, [$r, 1]);
1714 foreach my $r (@$dusers) {
1715 push @rdel,_del_thingy($parent, [$r, 0]);
1718 # remember this last PC92C for rebroadcast on demand
1719 $parent->last_PC92C($line);
1721 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1725 foreach my $r (@rdel) {
1728 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1729 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1731 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1732 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1733 unshift @pc19, $parent if $self->{state} eq 'init92' && $oparent == $parent;
1734 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1735 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1738 # broadcast it if we get here
1739 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1750 # $self->{do_pc9x} ||= 1;
1752 my $pcall = $_[1]; # this is now checked earlier
1754 # remember that we are converting PC10->PC93 and self will be $main::me if it
1756 unless ($self->{do_pc9x}) {
1757 dbg("PCPROT: PC9x come in from non-PC9x node, ignored") if isdbg('chanerr');
1762 my $parent = check_pc9x_t($pcall, $t, 93, 1) || return;
1765 my $from = uc $_[4];
1768 my $onode = uc $_[7];
1769 $onode = $pcall if @_ <= 8;
1771 # this is catch loops caused by bad software ...
1772 if (eph_dup("PC93|$from|$text|$onode", $pc10_dupe_age)) {
1776 # will we allow it at all?
1779 if (@bad = BadWords::check($text)) {
1780 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
1785 # if this is a 'bad spotter' user then ignore it
1787 $nossid =~ s/-\d+$//;
1788 if ($badspotter->in($nossid)) {
1789 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
1793 # if it is routeable then then treat it like a talk
1794 my $ref = Route::get($to);
1798 $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall;
1799 $dxchan = DXChannel::get($to) unless $dxchan;
1802 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1803 if ($dxchan->is_user) {
1804 $dxchan->talk($from, $to, $via, $text, $onode);
1808 dbg("ERROR: $to -> $dxchan is not a DXChannel! (local talk)");
1812 # convert to PC10 talks where appropriate
1813 # just go for the "best" one for now (rather than broadcast)
1814 $dxchan = $ref->dxchan;
1817 if (ref $dxchan && $dxchan->isa('DXChannel')) {
1818 if ($dxchan->{do_pc9x}) {
1819 $dxchan->send($line);
1821 $dxchan->talk($from, $to, $via, $text, $onode);
1824 dbg("ERROR: $to -> $dxchan is not a DXChannel! (convert to pc10)");
1828 } elsif ($to eq '*' || $to eq 'SYSOP' || $to eq 'WX') {
1830 my $sysop = $to eq 'SYSOP' ? '*' : ' ';
1831 my $wx = $to eq 'WX' ? '1' : '0';
1832 my $local = $via eq 'LOCAL' ? '*' : $via;
1834 $self->send_announce(1, pc12($from, $text, $local, $sysop, $wx, $pcall), $from, $local, $text, $sysop, $pcall, $wx, $via eq 'LOCAL' ? $via : undef);
1835 return if $via eq 'LOCAL';
1836 } elsif (!is_callsign($to) && $text =~ /^#\d+ /) {
1837 # chat messages to non-pc9x nodes
1838 $self->send_chat(1, pc12($from, $text, undef, $to, undef, $pcall), $from, '*', $text, $to, $pcall, '0');
1840 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1843 # if get here then rebroadcast the thing with its Hop count decremented (if
1844 # there is one). If it has a hop count and it decrements to zero then don't
1847 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1858 unless (eph_dup($line)) {
1861 unless (is_callsign($pcall)) {
1862 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
1866 my $parent = check_pc9x_t($pcall, $t, $pcno, 1) || return;
1867 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1869 unless ($self->{isolate}) {
1870 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me