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 $rspfcheck
45 $allowzero $decode_dk0wcy $send_opernam @checklist
49 # incoming talk commands
58 return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
60 # will we allow it at all?
63 if (@bad = BadWords::check($_[3])) {
64 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
69 # is it for me or one of mine?
70 my ($from, $to, $via, $call, $dxchan);
79 # if this is a 'nodx' node then ignore it
80 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
81 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
85 # if this is a 'bad spotter' user then ignore it
88 if ($badspotter->in($nossid)) {
89 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
93 # if we are converting announces to talk is it a dup?
95 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
96 dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
101 # remember a route to this node and also the node on which this user is
102 RouteDB::update($_[6], $self->{call});
103 # RouteDB::update($to, $_[6]);
105 # it is here and logged on
106 $dxchan = DXChannel::get($main::myalias) if $to eq $main::mycall;
107 $dxchan = DXChannel::get($to) unless $dxchan;
108 if ($dxchan && $dxchan->is_user) {
110 $dxchan->talk($from, $to, $via, $_[3]);
114 # is it elsewhere, visible on the cluster via the to address?
115 # note: this discards the via unless the to address is on
118 if ($ref = Route::get($to)) {
119 $vref = Route::Node::get($via) if $via;
120 $vref = undef unless $vref && grep $to eq $_, $vref->users;
121 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
125 # can we see an interface to send it down?
127 # not visible here, send a message of condolence
129 $ref = Route::get($from);
130 $vref = $ref = Route::Node::get($_[6]) unless $ref;
132 $dxchan = $ref->dxchan;
133 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
145 # route 'foreign' pc26s
147 if ($_[7] ne $main::mycall) {
148 $self->route($_[7], $line);
154 # return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
156 # is the spotted callsign blank? This should really be trapped earlier but it
157 # could break other protocol sentences. Also check for lower case characters.
158 if ($_[2] =~ /^\s*$/) {
159 dbg("PCPROT: blank callsign, dropped") if isdbg('chanerr');
162 if ($_[2] =~ /[a-z]/) {
163 dbg("PCPROT: lowercase characters, dropped") if isdbg('chanerr');
168 # if this is a 'nodx' node then ignore it
169 if ($badnode->in($_[7])) {
170 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
174 # if this is a 'bad spotter' user then ignore it
176 $nossid =~ s/-\d+$//;
177 if ($badspotter->in($nossid)) {
178 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
182 # convert the date to a unix date
183 my $d = cltounix($_[3], $_[4]);
184 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
185 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
186 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
191 if ($baddx->in($_[2]) || BadWords::check($_[2]) || $_[2] =~ /COCK/) {
192 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
197 $_[5] =~ s/^\s+//; # take any leading blanks off
198 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
199 if ($_[2] =~ /BUST\w*$/) {
200 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
205 if (@bad = BadWords::check($_[5])) {
206 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
212 # RouteDB::update($_[7], $self->{call});
213 # RouteDB::update($_[6], $_[7]);
215 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $nossid, $_[7]);
216 # global spot filtering on INPUT
217 if ($self->{inspotsfilter}) {
218 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
220 dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
225 # this goes after the input filtering, but before the add
226 # so that if it is input filtered, it isn't added to the dup
227 # list. This allows it to come in from a "legitimate" source
228 if (Spot::dup(@spot[0..4,5])) {
229 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
237 # @spot at this point contains:-
238 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
239 # then spotted itu, spotted cq, spotters itu, spotters cq
240 # you should be able to route on any of these
243 # fix up qra locators of known users
244 my $user = DXUser->get_current($spot[4]);
246 my $qra = $user->qra;
247 unless ($qra && is_qra($qra)) {
248 my $lat = $user->lat;
249 my $long = $user->long;
250 if (defined $lat && defined $long) {
251 $user->qra(DXBearing::lltoqra($lat, $long));
256 # send a remote command to a distant cluster if it is visible and there is no
257 # qra locator and we havn't done it for a month.
259 unless ($user->qra) {
261 my $to = $user->homenode;
262 my $last = $user->lastoper || 0;
263 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
264 my $cmd = "forward/opernam $spot[4]";
265 # send the rcmd but we aren't interested in the replies...
266 my $dxchan = $node->dxchan;
267 if ($dxchan && $dxchan->is_clx) {
268 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
270 route(undef, $to, pc34($main::mycall, $to, $cmd));
274 $node = Route::Node::get($to);
276 $dxchan = $node->dxchan;
277 if ($dxchan && $dxchan->is_clx) {
278 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
280 route(undef, $to, pc34($main::mycall, $to, $cmd));
284 $user->lastoper($main::systime);
293 $r = Local::spot($self, @spot);
295 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
298 # DON'T be silly and send on PC26s!
299 return if $pcno == 26;
301 # send out the filtered spots
302 send_dx_spot($self, $line, @spot) if @spot;
313 # return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
315 # announce duplicate checking
316 $_[3] =~ s/^\s+//; # remove leading blanks
320 if (@bad = BadWords::check($_[3])) {
321 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
326 # if this is a 'nodx' node then ignore it
327 if ($badnode->in($_[5])) {
328 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
332 # if this is a 'bad spotter' user then ignore it
334 $nossid =~ s/-\d+$//;
335 if ($badspotter->in($nossid)) {
336 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
343 if ((($dxchan = DXChannel::get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
344 $self->send_chat($line, @_[1..6]);
345 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
348 # RouteDB::update($_[5], $self->{call});
349 # RouteDB::update($_[1], $_[5]);
351 # ignore something that looks like a chat line coming in with sysop
352 # flag - this is a kludge...
353 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
354 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
358 # here's a bit of fun, convert incoming ann with a callsign in the first word
359 # or one saying 'to <call>' to a talk if we can route to the recipient
361 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
363 my $ref = Route::get($call);
365 $dxchan = $ref->dxchan;
366 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
373 $self->send_announce($line, @_[1..6]);
375 $self->route($_[2], $line);
386 if (eph_dup($line, $eph_pc15_restime)) {
387 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
389 unless ($self->{isolate}) {
390 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
406 my $newline = "PC16^";
408 # dos I want users from this channel?
409 unless ($self->user->wantpc16) {
410 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
414 if ($ncall eq $main::mycall) {
415 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
420 $h = 1 if DXChannel::get($ncall);
421 RouteDB::update($ncall, $self->{call}, $h);
423 if (eph_dup($line)) {
424 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
429 dbg("PCPROT: non-local PC16, ignored") if isdbg('chanerr');
433 my $parent = Route::Node::get($ncall);
436 $dxchan = $parent->dxchan;
437 if ($dxchan && $dxchan ne $self) {
438 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
442 # input filter if required
443 return unless $self->in_filter_route($parent);
448 for ($i = 2; $i < $#_; $i++) {
449 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
450 next unless $call && $conf && defined $here && is_callsign($call);
451 next if $call eq $main::mycall;
453 eph_del_regex("^PC17\\^$call\\^$ncall");
455 $conf = $conf eq '*';
457 # reject this if we think it is a node already
458 my $r = Route::Node::get($call);
459 my $u = DXUser->get_current($call) unless $r;
460 if ($r || ($u && $u->is_node)) {
461 dbg("PCPROT: $call is a node") if isdbg('chanerr');
465 $r = Route::User::get($call);
466 my $flags = Route::here($here)|Route::conf($conf);
469 my $au = $r->addparent($parent);
470 if ($r->flags != $flags) {
474 push @rout, $r if $au;
476 push @rout, $parent->add_user($call, $flags);
479 # send info to all logged in thingies
480 $self->tell_login('loginu', "$ncall: $call") if DXUser->get_current($ncall)->is_local_node;
481 $self->tell_buddies('loginb', $call, $ncall);
483 # add this station to the user database, if required
484 # $call =~ s/-\d+$//o; # remove ssid for users
485 my $user = DXUser->get_current($call);
486 $user = DXUser->new($call) if !$user;
487 $user->homenode($parent->call) if !$user->homenode;
488 $user->node($parent->call);
489 $user->lastin($main::systime) unless DXChannel::get($call);
493 $self->route_pc16($origin, $line, $parent, @rout);
494 $self->route_pc92a($main::mycall, undef, $parent, @rout);
509 eph_del_regex("^PC16\\^$ncall.*$ucall");
511 # do I want users from this channel?
512 unless ($self->user->wantpc16) {
513 dbg("PCPROT: don't send users to $self->{call}") if isdbg('chanerr');
516 if ($ncall eq $main::mycall) {
517 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
521 RouteDB::delete($ncall, $self->{call});
523 unless ($ncall eq $self->{call}) {
524 dbg("PCPROT: PC17 from non-local $ncall, ignored") if isdbg('chanerr');
528 my $uref = Route::User::get($ucall);
530 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
532 my $parent = Route::Node::get($ncall);
534 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
537 $dxchan = $parent->dxchan if $parent;
538 if ($dxchan && $dxchan ne $self) {
539 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
543 # input filter if required and then remove user if present
545 # return unless $self->in_filter_route($parent);
546 $parent->del_user($uref) if $uref;
548 $parent = Route->new($ncall); # throw away
551 # send info to all logged in thingies
552 $self->tell_login('logoutu', "$ncall: $ucall") if DXUser->get_current($ncall)->is_local_node;
553 $self->tell_buddies('logoutb', $ucall, $ncall);
555 if (eph_dup($line)) {
556 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
560 $uref = Route->new($ucall) unless $uref; # throw away
561 $self->route_pc17($origin, $line, $parent, $uref);
562 $self->route_pc92d($main::mycall, undef, $parent, $uref);
572 $self->state('init');
574 # record the type and version offered
575 if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
576 $self->version(53 + $1);
577 $self->user->version(53 + $1);
578 $self->build(0 + $2);
579 $self->user->build(0 + $2);
580 unless ($self->is_spider) {
581 $self->user->sort('S');
585 $self->{handle_xml}++ if DXXml::available() && $_[1] =~ /\bxml\b/;
586 $self->{do_pc92}++ if $_[1] =~ /\bpc92\b/;
588 $self->version(50.0);
589 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
590 $self->user->version($self->version);
593 # first clear out any nodes on this dxchannel
594 my $parent = Route::Node::get($self->{call});
595 my @rout = $parent->del_nodes;
596 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
597 $self->send_local_config();
605 # add this station to the user database, if required (don't remove SSID from nodes)
606 my $user = DXUser->get_current($call);
608 $user = DXUser->new($call);
609 $user->priv(1); # I have relented and defaulted nodes
611 $user->homenode($call);
614 $user->sort('A') unless $user->is_node;
618 # incoming cluster list
627 my $newline = "PC19^";
632 # first get the INTERFACE node
633 my $parent = Route::Node::get($self->{call});
635 dbg("DXPROT: my parent $self->{call} has disappeared");
642 # We are making a major change from now on. We are only going to accept
643 # PC19s from directly connected nodes. This means that we are probably
644 # going to throw away most of the data that we are being sent.
646 # The justification for this is that most of it is wrong or out of date
649 # From now on we are only going to believe PC92 data.
651 for ($i = 1; $i < $#_-1; $i += 4) {
653 my $call = uc $_[$i+1];
656 next unless defined $here && defined $conf && is_callsign($call);
658 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
660 # check for sane parameters
661 # $ver = 5000 if $ver eq '0000';
662 next unless $ver && $ver =~ /^\d+$/;
663 next if $ver < 5000; # only works with version 5 software
664 next if length $call < 3; # min 3 letter callsigns
665 next if $call eq $main::mycall;
667 # check that this PC19 isn't trying to alter the wrong dxchan
668 my $dxchan = DXChannel::get($call);
669 if ($dxchan && $dxchan != $self) {
670 dbg("PCPROT: PC19 from $self->{call} trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
674 my $user = check_add_node($call);
676 # if (eph_dup($genline)) {
677 # dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
681 RouteDB::update($call, $self->{call}, $dxchan ? 1 : undef);
684 dbg("PCPROT: PC19 not directly connected, ignored") if isdbg('chanerr');
688 my $r = Route::Node::get($call);
689 my $flags = Route::here($here)|Route::conf($conf);
691 # modify the routing table if it is in it, otherwise store it in the pc19list for now
694 if ($call ne $parent->call) {
695 if ($self->in_filter_route($r)) {
696 $ar = $parent->add($call, $ver, $flags);
697 # push @rout, $ar if $ar;
702 if ($r->version ne $ver || $r->flags != $flags) {
708 if ($call eq $self->{call} || $user->wantroutepc19) {
709 my $new = Route->new($call); # throw away
710 if ($self->in_filter_route($new)) {
711 my $ar = $parent->add($call, $ver, $flags);
712 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
713 push @rout, $ar if $ar;
720 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
721 my $mref = DXMsg::get_busy($call);
722 $mref->stop_msg($call) if $mref;
724 $user->lastin($main::systime) unless DXChannel::get($call);
728 # we are not automatically sending out PC19s, we send out a composite PC21,PC19 instead
729 # but remember there will only be one (pair) these because any extras will be
732 $self->route_pc21($self->{call}, $line, @rout);
733 $self->route_pc19($self->{call}, $line, @rout);
734 $self->route_pc92a($main::mycall, $line, $main::routeroot, @rout);
738 # send local configuration
745 $self->send_local_config();
747 $self->state('normal');
748 $self->{lastping} = 0;
751 # delete a cluster from the list
753 # This should never occur for directly connected nodes.
763 eph_del_regex("^PC1[679].*$call");
765 # if I get a PC21 from the same callsign as self then ignore it
766 if ($call eq $self->call) {
767 dbg("PCPROT: self referencing PC21 from $self->{call}");
771 RouteDB::delete($call, $self->{call});
773 my $parent = Route::Node::get($self->{call});
775 dbg("PCPROT: my parent $self->{call} has disappeared");
782 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
783 my $node = Route::Node::get($call);
786 my $dxchan = DXChannel::get($call);
787 if ($dxchan && $dxchan != $self) {
788 dbg("PCPROT: PC21 from $self->{call} trying to alter locally connected $call, ignored!") if isdbg('chanerr');
793 return unless $self->in_filter_route($node);
795 # routing objects, force a PC21 if it is local
796 push @rout, $node->del($parent);
797 push @rout, $call if $dxchan && @rout == 0;
800 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
805 $self->route_pc21($origin, $line, @rout);
806 $self->route_pc92d($main::mycall, $line, $main::routeroot, @rout);
817 $self->state('normal');
818 $self->{lastping} = 0;
829 # route foreign' pc27s
831 if ($_[8] ne $main::mycall) {
832 $self->route($_[8], $line);
837 # only do a rspf check on PC23 (not 27)
839 return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7])
843 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
844 my $sfi = unpad($_[3]);
845 my $k = unpad($_[4]);
846 my $i = unpad($_[5]);
847 my ($r) = $_[6] =~ /R=(\d+)/;
849 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
850 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
854 # global wwv filtering on INPUT
855 my @dxcc = ((Prefix::cty_data($_[7]))[0..2], (Prefix::cty_data($_[8]))[0..2]);
856 if ($self->{inwwvfilter}) {
857 my ($filter, $hops) = $self->{inwwvfilter}->it(@_[7,8], $origin, @dxcc);
859 dbg("PCPROT: Rejected by input wwv filter") if isdbg('chanerr');
863 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
864 if (Geomag::dup($d,$sfi,$k,$i,$_[6],$_[7])) {
865 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
869 # note this only takes the first one it gets
870 Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
874 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
876 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
879 # DON'T be silly and send on PC27s!
880 return if $pcno == 27;
882 # broadcast to the eager world
883 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
895 $nref = Route::Node::get($call);
896 $uref = Route::User::get($call);
897 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
899 if (eph_dup($line)) {
900 dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
904 $nref->here($_[2]) if $nref;
905 $uref->here($_[2]) if $uref;
906 my $ref = $nref || $uref;
907 return unless $self->in_filter_route($ref);
909 $self->route_pc24($origin, $line, $ref, $_[3]);
919 if ($_[1] ne $main::mycall) {
920 $self->route($_[1], $line);
923 if ($_[2] eq $main::mycall) {
924 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
928 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
932 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
935 $self->send(pc26(@{$in}[0..4], $_[2]));
941 my @in = reverse Geomag::search(0, $_[4], time, 1);
944 $self->send(pc27(@{$in}[0..5], $_[2]));
949 sub handle_26 {goto &handle_11}
950 sub handle_27 {goto &handle_23}
959 if ($_[1] eq $main::mycall) {
961 my $sub = "DXMsg::handle_$pcno";
964 $self->route($_[1], $line) unless $self->is_clx;
968 sub handle_29 {goto &handle_28}
969 sub handle_30 {goto &handle_28}
970 sub handle_31 {goto &handle_28}
971 sub handle_32 {goto &handle_28}
972 sub handle_33 {goto &handle_28}
980 if (eph_dup($line, $eph_pc34_restime)) {
981 dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
983 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
987 # remote command replies
994 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
995 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
998 sub handle_36 {goto &handle_34}
1007 if ($_[1] eq $main::mycall) {
1009 my $sub = "DXDb::handle_$pcno";
1012 $self->route($_[1], $line) unless $self->is_clx;
1016 # node connected list from neighbour
1025 # incoming disconnect
1032 if ($_[1] eq $self->{call}) {
1033 $self->disconnect(1);
1035 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1039 sub handle_40 {goto &handle_28}
1051 $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
1052 if (eph_dup($l, $eph_info_restime)) {
1053 dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
1057 # input filter if required
1058 # my $ref = Route::get($call) || Route->new($call);
1059 # return unless $self->in_filter_route($ref);
1061 if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
1062 dbg('PCPROT: invalid value') if isdbg('chanerr');
1066 # add this station to the user database, if required
1067 my $user = DXUser->get_current($call);
1068 $user = DXUser->new($call) unless $user;
1072 } elsif ($_[2] == 2) {
1074 } elsif ($_[2] == 3) {
1075 if (is_latlong($_[3])) {
1076 my ($lat, $long) = DXBearing::stoll($_[3]);
1079 $user->qra(DXBearing::lltoqra($lat, $long));
1081 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1084 } elsif ($_[2] == 4) {
1085 $user->homenode($_[3]);
1086 } elsif ($_[2] == 5) {
1087 if (is_qra(uc $_[3])) {
1088 my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
1091 $user->qra(uc $_[3]);
1093 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1097 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1100 unless ($self->{isolate}) {
1101 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1104 # perhaps this IS what we want after all
1105 # $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
1108 sub handle_42 {goto &handle_28}
1112 sub handle_44 {goto &handle_37}
1113 sub handle_45 {goto &handle_37}
1114 sub handle_46 {goto &handle_37}
1115 sub handle_47 {goto &handle_37}
1116 sub handle_48 {goto &handle_37}
1118 # message and database
1126 if (eph_dup($line)) {
1127 dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
1131 if ($_[1] eq $main::mycall) {
1132 DXMsg::handle_49($self, @_);
1134 $self->route($_[1], $line) unless $self->is_clx;
1138 # keep alive/user list
1148 RouteDB::update($call, $self->{call});
1150 my $node = Route::Node::get($call);
1152 return unless $node->call eq $self->{call};
1153 $node->usercount($_[2]);
1155 # input filter if required
1156 return unless $self->in_filter_route($node);
1158 $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1162 # incoming ping requests/answers
1175 if ($to eq $main::mycall) {
1177 $self->send(pc51($from, $to, '0'));
1179 DXXml::Ping::handle_ping_reply($self, $from);
1183 RouteDB::update($from, $self->{call});
1185 if (eph_dup($line)) {
1186 dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1189 # route down an appropriate thingy
1190 $self->route($to, $line);
1194 # dunno but route it
1202 if ($call ne $main::mycall) {
1203 $self->route($call, $line);
1217 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1218 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1219 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1222 @_ = map { unpad($_) } @_;
1224 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1228 my $wcy = WCY::update($d, @_[2..12]);
1232 $rep = Local::wcy($self, @_[1..12]);
1234 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1237 # broadcast to the eager world
1238 send_wcy_spot($self, $line, $d, @_[2..12]);
1241 # remote commands (incoming)
1248 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1251 # remote command replies
1258 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1261 # decode a pc92 call: flag call : version : build
1262 sub _decode_pc92_call
1265 my @part = split /:/, $icall;
1266 my ($flag, $call) = unpack "A A*", $part[0];
1267 return () unless $flag && $flag ge '0' && $flag le '7';
1268 return () unless $call && is_callsign($call);
1269 my $is_node = $flag & 4;
1270 my $is_extnode = $flag & 2;
1271 my $here = $flag & 1;
1272 return ($call, $is_node, $is_extnode, $here, $part[1], $part[2]);
1275 # decode a pc92 call: flag call : version : build
1276 sub _encode_pc92_call
1281 my $call = $ref->call;
1283 $flag |= $ref->here ? 1 : 0;
1284 if ($ref->isa('Route::Node') || $ref->isa('DXProt')) {
1286 my $dxchan = DXChannel::get($call);
1287 $flag |= 2 if $call ne $main::mycall && $dxchan && !$dxchan->{do_pc92};
1289 if ($ref->version) {
1290 my $version = $ref->version || 1.0;
1291 $version = $version * 100 + 5300 if $version < 50;
1292 $extra .= ":" . $version;
1296 return "$flag$call$extra";
1303 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($s);
1308 @rout = $parent->add($call, $version, Route::here($here));
1310 @rout = $parent->add_user($call, Route::here($here));
1320 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($s);
1324 my $nref = Route::Node::get($call);
1325 @rout = $nref->del($parent) if $nref;
1327 my $uref = Route::User::get($call);
1328 @rout = $parent->del_user($uref) if $uref;
1339 if (!$_last_time || $_last_time != $main::systime) {
1340 $_last_time = $main::systime;
1342 return $_last_time - $main::systime_daystart;
1345 return sprintf "%d.%02d", $_last_time - $main::systime_daystart, $_last_occurs;
1356 my $parent = ref $call ? $call : Route::Node::get($call);
1358 my $lastid = $parent->lastid->{$pc} || 0;
1359 $t += 86400 if $t < $lastid - 43200;
1360 if ($lastid >= $t) {
1361 dbg("PCPROT: dup / old id on $call <= $lastid, ignored") if isdbg('chanerr');
1364 $t -= 86400 if $t >= 86400;
1366 $parent = Route::Node->new($call);
1368 $parent->lastid->{$pc} = $t;
1373 # DXSpider routing entries
1381 $self->{do_pc92} ||= 1;
1385 dbg("PCPROT: invalid callsign string '$_[1]', ignored") if isdbg('chanerr');
1391 my @ent = grep {$_ && /^[0-7]/} @_[4 .. $#_];
1393 if ($pcall eq $main::mycall) {
1394 dbg("PCPROT: looped back, ignored") if isdbg('chanerr');
1398 my $parent = check_pc9x_t($pcall, $t, 92, 1) || return;
1400 $parent->lastid->{92} = $t;
1401 $parent->do_pc92(1);
1405 # look at the first one which will always be a node of some sort
1406 # and update any information that needs to be done.
1407 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($ent[0]);
1408 if ($call && $is_node) {
1409 if ($call eq $main::mycall) {
1410 dbg("PCPROT: looped back on node entry, ignored") if isdbg('chanerr');
1414 # reparent to external node (note that we must have received a 'C' or 'A' record
1415 # from the true parent node for this external before we get one for the this node
1416 unless ($parent = Route::Node::get($call)) {
1417 dbg("PCPROT: no previous C or A for this external node received, ignored") if isdbg('chanerr');
1420 my $parent = check_pc9x_t($call, $t, 92) || return;
1423 dbg("PCPROT: must be mycall or external node as first entry, ignored") if isdbg('chanerr');
1426 $parent->here(Route::here($here));
1427 $parent->version($version) if $version && $version > $parent->version;
1428 $parent->build($build) if $build && $build > $parent->build;
1436 push @radd, _add_thingy($parent, $_);
1438 } elsif ($sort eq 'D') {
1440 push @rdel, _del_thingy($parent, $_);
1442 } elsif ($sort eq 'C') {
1443 my (@nodes, @users);
1445 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1453 dbg("DXPROT: pc92 call entry '$_' not decoded, ignored") if isdbg('chanerr');
1457 my ($dnodes, $dusers, $nnodes, $nusers) = $parent->calc_config_changes(\@nodes, \@users);
1460 my ($call, $is_node, $is_extnode, $here, $version, $build) = _decode_pc92_call($_);
1462 push @radd,_add_thingy($parent, $_) if grep $call eq $_, (@$nnodes, @$nusers);
1463 push @rdel,_del_thingy($parent, $_) if grep $call eq $_, (@$dnodes, @$dusers);
1467 dbg("PCPROT: unknown action '$sort', ignored") if isdbg('chanerr');
1471 $self->broadcast_route_pc9x($pcall, undef, $line, 0);
1472 foreach my $r (@rdel) {
1475 $self->route_pc21($pcall, undef, $r) if $r->isa('Route::Node');
1476 $self->route_pc17($pcall, undef, $parent, $r) if $r->isa('Route::User');
1478 my @pc19 = grep { $_ && $_->isa('Route::Node') } @radd;
1479 my @pc16 = grep { $_ && $_->isa('Route::User') } @radd;
1480 $self->route_pc19($pcall, undef, @pc19) if @pc19;
1481 $self->route_pc16($pcall, undef, $parent, @pc16) if @pc16;
1484 # if get here then rebroadcast the thing with its Hop count decremented (if
1485 # there is one). If it has a hop count and it decrements to zero then don't
1488 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1499 if (eph_dup($line)) {
1500 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1502 unless ($self->{isolate}) {
1503 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me