3 # This module impliments the protocal mode for a dx cluster
5 # Copyright (c) 1998 Dirk Koopman G1TLH
31 use Time::HiRes qw(gettimeofday tv_interval);
35 use vars qw($me $pc11_max_age $pc23_max_age
36 $last_hour %pings %rcmds
37 %nodehops @baddx $baddxfn $censorpc
38 $allowzero $decode_dk0wcy $send_opernam @checklist);
40 $me = undef; # the channel id for this cluster
41 $pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
42 $pc23_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc23
44 $last_hour = time; # last time I did an hourly periodic update
45 %pings = (); # outstanding ping requests outbound
46 %rcmds = (); # outstanding rcmd requests outbound
47 %nodehops = (); # node specific hop control
48 @baddx = (); # list of illegal spotted callsigns
49 $censorpc = 0; # Do a BadWords::check on text fields and reject things
51 $baddxfn = "$main::data/baddx.pl";
55 [ qw(c c m bp bc c) ], # pc10
56 [ qw(f m d t m c c h) ], # pc11
57 [ qw(c bc m bp bm p h) ], # pc12
61 undef , # pc16 has to be validated manually
64 undef , # pc19 has to be validated manually
65 undef , # pc20 no validation
67 undef , # pc22 no validation
68 [ qw(d n n n n m c c h) ], # pc23
70 [ qw(c c n n) ], # pc25
71 [ qw(f m d t m c c bc) ], # pc26
72 [ qw(d n n n n m c c bc) ], # pc27
73 [ qw(c c m c d t p m bp n p bp bc) ], # pc28
74 [ qw(c c n m) ], # pc29
82 [ qw(c c n m) ], # pc37
83 undef, # pc38 not interested
85 [ qw(c c m p n) ], # pc40
86 [ qw(c n m h) ], # pc41
88 undef, # pc43 don't handle it
89 [ qw(c c n m m c) ], # pc44
90 [ qw(c c n m) ], # pc45
118 [ qw(d n n n n n n m m m c c h) ], # pc73
129 [ qw(c c c m) ], # pc84
130 [ qw(c c c m) ], # pc85
133 # use the entry in the check list to check the field list presented
134 # return OK if line NOT in check list (for now)
139 return 0 if $n < 0 || $n > @checklist;
140 my $ref = $checklist[$n];
141 return 0 unless ref $ref;
144 shift; # not interested in the first field
145 for ($i = 0; $i < @$ref; $i++) {
146 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
147 return 0 unless $act;
148 next if $blank && $_[$i] =~ /^[ \*]$/;
150 return $i+1 unless is_callsign($_[$i]);
151 } elsif ($act eq 'm') {
152 return $i+1 unless is_pctext($_[$i]);
153 } elsif ($act eq 'p') {
154 return $i+1 unless is_pcflag($_[$i]);
155 } elsif ($act eq 'f') {
156 return $i+1 unless is_freq($_[$i]);
157 } elsif ($act eq 'n') {
158 return $i+1 unless $_[$i] =~ /^[\d ]+$/;
159 } elsif ($act eq 'h') {
160 return $i+1 unless $_[$i] =~ /^H\d\d?$/;
161 } elsif ($act eq 'd') {
162 return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
163 } elsif ($act eq 't') {
164 return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
172 my $user = DXUser->get($main::mycall);
173 $DXProt::myprot_version += $main::version*100;
174 $me = DXProt->new($main::mycall, 0, $user);
176 $me->{state} = "indifferent";
177 do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
179 $me->{sort} = 'S'; # S for spider
181 # load the baddx file
182 do "$baddxfn" if -e "$baddxfn";
187 # obtain a new connection this is derived from dxchannel
192 my $self = DXChannel::alloc(@_);
196 # this is how a pc connection starts (for an incoming connection)
197 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
198 # all the crap that comes between).
201 my ($self, $line, $sort) = @_;
202 my $call = $self->{call};
203 my $user = $self->{user};
205 # remember type of connection
206 $self->{consort} = $line;
207 $self->{outbound} = $sort eq 'O';
208 $self->{priv} = $user->priv || 1; # other clusters can always be 'normal' users
209 $self->{lang} = $user->lang || 'en';
210 $self->{isolate} = $user->{isolate};
211 $self->{consort} = $line; # save the connection type
214 # get the output filters
215 $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
216 $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
217 $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
218 $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
221 # get the INPUT filters (these only pertain to Clusters)
222 $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
223 $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
224 $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
225 $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
227 # set unbuffered and no echo
228 $self->send_now('B',"0");
229 $self->send_now('E',"0");
231 # ping neighbour node stuff
232 my $ping = $user->pingint;
233 $ping = 5*60 unless defined $ping;
234 $self->{pingint} = $ping;
235 $self->{nopings} = $user->nopings || 2;
236 $self->{pingtime} = [ ];
237 $self->{pingave} = 0;
239 # send initialisation string
240 unless ($self->{outbound}) {
241 # $self->send(pc38()) if DXNode->get_all();
243 $self->{lastping} = $main::systime;
245 # remove from outstanding connects queue
246 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
247 $self->{lastping} = $main::systime + $self->pingint / 2;
249 $self->state('init');
252 # send info to all logged in thingies
253 $self->tell_login('loginn');
255 Log('DXProt', "$call connected");
259 # This is the normal pcxx despatcher
263 my ($self, $line) = @_;
264 my @field = split /\^/, $line;
265 return unless @field;
267 pop @field if $field[-1] eq '~';
269 # print join(',', @field), "\n";
271 # ignore any lines that don't start with PC
272 return if !$field[0] =~ /^PC/;
275 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
277 return if $pcno < 10 || $pcno > 99;
279 # check for and dump bad protocol messages
280 my $n = check($pcno, @field);
282 dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
289 $pcr = Local::pcprot($self, $pcno, @field);
291 # dbg('local', "Local::pcprot error $@") if $@;
295 if ($pcno == 10) { # incoming talk
297 # will we allow it at all?
300 if (@bad = BadWords::check($field[3])) {
301 dbg('chan', "Bad words: @bad, dropped" );
306 # is it for me or one of mine?
307 my ($to, $via, $call, $dxchan);
308 if ($field[5] gt ' ') {
309 $call = $via = $field[2];
312 $call = $to = $field[2];
314 $dxchan = DXChannel->get($call);
315 if ($dxchan && $dxchan->is_user) {
316 $field[3] =~ s/\%5E/^/g;
317 $dxchan->talk($field[1], $to, $via, $field[3]);
319 $self->route($field[2], $line); # relay it on its way
324 if ($pcno == 11 || $pcno == 26) { # dx spot
326 # route 'foreign' pc26s
328 if ($field[7] ne $main::mycall) {
329 $self->route($field[7], $line);
334 # if this is a 'nodx' node then ignore it
335 if (grep $field[7] =~ /^$_/, @DXProt::nodx_node) {
336 dbg('chan', "Bad DXNode, dropped");
340 # convert the date to a unix date
341 my $d = cltounix($field[3], $field[4]);
342 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
343 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
344 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
349 if (grep $field[2] eq $_, @baddx) {
350 dbg('chan', "Bad DX spot, ignored");
355 $field[5] =~ s/^\s+//; # take any leading blanks off
356 if (Spot::dup($field[1], $field[2], $d, $field[5])) {
357 dbg('chan', "Duplicate Spot ignored\n");
362 if (@bad = BadWords::check($field[5])) {
363 dbg('chan', "Bad words: @bad, dropped" );
368 my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
371 # @spot at this point contains:-
372 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
373 # then spotted itu, spotted cq, spotters itu, spotters cq
374 # you should be able to route on any of these
377 # fix up qra locators of known users
378 my $user = DXUser->get_current($spot[4]);
380 my $qra = $user->qra;
381 unless ($qra && DXBearing::is_qra($qra)) {
382 my $lat = $user->lat;
383 my $long = $user->long;
384 if (defined $lat && defined $long) {
385 $user->qra(DXBearing::lltoqra($lat, $long));
390 # send a remote command to a distant cluster if it is visible and there is no
391 # qra locator and we havn't done it for a month.
393 unless ($user->qra) {
395 my $to = $user->homenode;
396 my $last = $user->lastoper || 0;
397 if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
398 my $cmd = "forward/opernam $spot[4]";
399 # send the rcmd but we aren't interested in the replies...
400 if ($node && $node->dxchan && $node->dxchan->is_clx) {
401 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
403 route(undef, $to, pc34($main::mycall, $to, $cmd));
405 if ($to ne $field[7]) {
407 $node = DXCluster->get_exact($to);
408 if ($node && $node->dxchan && $node->dxchan->is_clx) {
409 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
411 route(undef, $to, pc34($main::mycall, $to, $cmd));
414 $user->lastoper($main::systime);
423 $r = Local::spot($self, @spot);
425 # dbg('local', "Local::spot1 error $@") if $@;
428 # DON'T be silly and send on PC26s!
429 return if $pcno == 26;
431 # send out the filtered spots
432 send_dx_spot($self, $line, @spot) if @spot;
436 if ($pcno == 12) { # announces
437 # announce duplicate checking
438 $field[3] =~ s/^\s+//; # remove leading blanks
439 if (AnnTalk::dup($field[1], $field[2], $field[3])) {
440 dbg('chan', "Duplicate Announce ignored");
446 if (@bad = BadWords::check($field[3])) {
447 dbg('chan', "Bad words: @bad, dropped" );
452 if ($field[2] eq '*' || $field[2] eq $main::mycall) {
454 # global ann filtering on INPUT
455 if ($self->{inannfilter}) {
456 my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
457 my @dxcc = Prefix::extract($field[1]);
459 $ann_dxcc = $dxcc[1]->dxcc;
460 $ann_itu = $dxcc[1]->itu;
461 $ann_cq = $dxcc[1]->cq();
463 @dxcc = Prefix::extract($field[5]);
465 $org_dxcc = $dxcc[1]->dxcc;
466 $org_itu = $dxcc[1]->itu;
467 $org_cq = $dxcc[1]->cq();
469 my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
470 $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
472 dbg('chan', "Rejected by filter");
478 $self->send_announce($line, @field[1..6]);
480 $self->route($field[2], $line);
496 if ($pcno == 16) { # add a user
497 my $node = DXCluster->get_exact($field[1]);
499 if (!$node && ($dxchan = DXChannel->get($field[1]))) {
500 # add it to the node table if it isn't present and it's
502 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
503 dbg('chan', "$field[1] no PC19 yet, autovivified as node");
504 # broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
507 if ($field[2] eq $main::mycall || $field[2] eq $main::myalias || $field[1] eq $main::myalias || $field[1] eq $main::mycall) {
508 dbg('chan', "LOOP: trying to connect myself!");
512 dbg('chan', "Node $field[1] not in config");
515 unless ($node->isa('DXNode')) {
516 dbg('chan', "$field[1] is not a node");
519 if ($node->dxchan != $self) {
520 dbg('chan', "LOOP: $field[1] came in on wrong channel");
523 if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
524 dbg('chan', "LOOP: $field[1] connected locally");
529 for ($i = 2; $i < $#field; $i++) {
530 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
531 next unless $call && $confmode && defined $here && is_callsign($call);
532 my $ref = DXCluster->get_exact($call);
534 if ($ref->isa('DXNode')) {
535 dbg('chan', "LOOP: $call is a node");
538 my $rcall = $ref->call;
539 dbg('chan', "LOOP: already have $call on $rcall");
543 $confmode = $confmode eq '*';
544 DXNodeuser->new($self, $node, $call, $confmode, $here);
546 # add this station to the user database, if required
547 $call =~ s/-\d+$//o; # remove ssid for users
548 my $user = DXUser->get_current($call);
549 $user = DXUser->new($call) if !$user;
550 $user->homenode($node->call) if !$user->homenode;
551 $user->node($node->call);
552 $user->lastin($main::systime) unless DXChannel->get($call);
556 # queue up any messages (look for privates only)
557 DXMsg::queue_msg(1) if $self->state eq 'normal';
561 if ($pcno == 17) { # remove a user
562 my $node = DXCluster->get_exact($field[2]);
564 if (!$node && ($dxchan = DXChannel->get($field[2]))) {
565 # add it to the node table if it isn't present and it's
567 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
568 dbg('chan', "$field[2] no PC19 yet, autovivified as node");
569 # broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
571 if ($field[2] eq $main::mycall || $field[2] eq $main::myalias || $field[1] eq $main::myalias || $field[1] eq $main::mycall) {
572 dbg('chan', "LOOP: trying to disconnect me!");
576 dbg('chan', "Node $field[2] not in config");
579 unless ($node->isa('DXNode')) {
580 dbg('chan', "LOOP: $field[2] is not a node");
583 if ($node->dxchan != $self) {
584 dbg('chan', "LOOP: $field[2] came in on wrong channel");
587 if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
588 dbg('chan', "LOOP: $field[2] connected locally");
591 my $ref = DXCluster->get_exact($field[1]);
595 dbg('chan', "$field[1] not known" );
601 if ($pcno == 18) { # link request
602 $self->state('init');
604 # first clear out any nodes on this dxchannel
605 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
606 foreach my $node (@gonenodes) {
607 next if $node->dxchan == $DXProt::me;
608 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
611 $self->send_local_config();
613 return; # we don't pass these on
616 if ($pcno == 19) { # incoming cluster list
618 my $newline = "PC19^";
619 for ($i = 1; $i < $#field-1; $i += 4) {
620 my $here = $field[$i];
621 my $call = uc $field[$i+1];
622 my $confmode = $field[$i+2];
623 my $ver = $field[$i+3];
624 next unless defined $here && defined $confmode && is_callsign($call);
626 $ver = 5400 if !$ver && $allowzero;
628 # now check the call over
629 my $node = DXCluster->get_exact($call);
632 if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
633 dbg('chan', "LOOP: $call connected locally");
635 if ($node->dxchan != $self) {
636 dbg('chan', "LOOP: $call come in on wrong channel");
639 dbg('chan', "already have $call");
643 # check for sane parameters
644 next if $ver < 5000; # only works with version 5 software
645 next if length $call < 3; # min 3 letter callsigns
647 # add it to the nodes table and outgoing line
648 $newline .= "$here^$call^$confmode^$ver^";
649 DXNode->new($self, $call, $confmode, $here, $ver);
651 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
652 my $mref = DXMsg::get_busy($call);
653 $mref->stop_msg($call) if $mref;
655 # add this station to the user database, if required (don't remove SSID from nodes)
656 my $user = DXUser->get_current($call);
658 $user = DXUser->new($call);
660 $user->priv(1); # I have relented and defaulted nodes
661 $self->{priv} = 1; # to user RCMDs allowed
662 $user->homenode($call);
665 $user->lastin($main::systime) unless DXChannel->get($call);
669 return if $newline eq "PC19^";
672 $newline .= get_hops(19) . "^";
677 if ($pcno == 20) { # send local configuration
678 $self->send_local_config();
680 $self->state('normal');
684 if ($pcno == 21) { # delete a cluster from the list
685 my $call = uc $field[1];
686 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
687 my $node = DXCluster->get_exact($call);
689 unless ($node->isa('DXNode')) {
690 dbg('chan', "$call is not a node");
693 if ($call eq $self->{call}) {
694 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
697 if ($node->dxchan != $self) {
698 dbg('chan', "LOOP: $call come in on wrong channel");
702 if ($dxchan = DXChannel->get($call)) {
703 dbg('chan', "LOOP: $call connected locally");
708 dbg('chan', "$call not in table, dropped");
712 dbg('chan', "I WILL NOT be disconnected!");
719 $self->state('normal');
723 if ($pcno == 23 || $pcno == 27) { # WWV info
725 # route 'foreign' pc27s
727 if ($field[8] ne $main::mycall) {
728 $self->route($field[8], $line);
734 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
735 my $sfi = unpad($field[3]);
736 my $k = unpad($field[4]);
737 my $i = unpad($field[5]);
738 my ($r) = $field[6] =~ /R=(\d+)/;
740 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
741 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
744 if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
745 dbg('chan', "Dup WWV Spot ignored\n");
748 $field[7] =~ s/-\d+$//o; # remove spotter's ssid
750 my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
754 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
756 # dbg('local', "Local::wwv2 error $@") if $@;
759 # DON'T be silly and send on PC27s!
760 return if $pcno == 27;
762 # broadcast to the eager world
763 send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
767 if ($pcno == 24) { # set here status
768 my $call = uc $field[1];
769 my $ref = DXCluster->get_exact($call);
770 $ref->here($field[2]) if $ref;
774 if ($pcno == 25) { # merge request
775 if ($field[1] ne $main::mycall) {
776 $self->route($field[1], $line);
779 if ($field[2] eq $main::mycall) {
780 dbg('chan', "Trying to merge to myself, ignored");
784 Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
788 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
791 $self->send(pc26(@{$in}[0..4], $field[2]));
797 my @in = reverse Geomag::search(0, $field[4], time, 1);
800 $self->send(pc27(@{$in}[0..5], $field[2]));
806 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
807 if ($pcno == 49 || $field[1] eq $main::mycall) {
808 DXMsg::process($self, $line);
810 $self->route($field[1], $line) unless $self->is_clx;
815 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
816 if ($field[1] eq $main::mycall) {
817 my $ref = DXUser->get_current($field[2]);
818 my $cref = DXCluster->get($field[2]);
819 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
820 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
821 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
822 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
823 my $oldpriv = $self->{priv};
824 $self->{priv} = $ref->{priv}; # assume the user's privilege level
825 my @in = (DXCommandmode::run_cmd($self, $field[3]));
826 $self->{priv} = $oldpriv;
829 $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
830 Log('rcmd', 'out', $field[2], $_);
832 delete $self->{remotecmd};
834 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
837 $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
840 my $ref = DXUser->get_current($field[1]);
841 if ($ref && $ref->is_clx) {
842 route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
844 $self->route($field[1], $line);
850 if ($pcno == 35) { # remote command replies
851 if ($field[1] eq $main::mycall) {
852 my $s = $rcmds{$field[2]};
854 my $dxchan = DXChannel->get($s->{call});
855 $dxchan->send($field[3]) if $dxchan;
856 delete $rcmds{$field[2]} if !$dxchan;
858 # send unsolicited ones to the sysop
859 my $dxchan = DXChannel->get($main::myalias);
860 $dxchan->send($field[3]) if $dxchan;
863 my $ref = DXUser->get_current($field[1]);
864 if ($ref && $ref->is_clx) {
865 route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
867 $self->route($field[1], $line);
873 # for pc 37 see 44 onwards
875 if ($pcno == 38) { # node connected list from neighbour
879 if ($pcno == 39) { # incoming disconnect
880 if ($field[1] eq $self->{call}) {
881 $self->disconnect(1);
883 dbg('chan', "LOOP: came in on wrong channel");
888 if ($pcno == 41) { # user info
889 # add this station to the user database, if required
890 my $user = DXUser->get_current($field[1]);
892 # then try without an SSID
893 $field[1] =~ s/-\d+$//o;
894 $user = DXUser->get_current($field[1]);
896 $user = DXUser->new($field[1]) if !$user;
898 if ($field[2] == 1) {
899 $user->name($field[3]);
900 } elsif ($field[2] == 2) {
901 $user->qth($field[3]);
902 } elsif ($field[2] == 3) {
903 my ($lat, $long) = DXBearing::stoll($field[3]);
906 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
907 } elsif ($field[2] == 4) {
908 $user->homenode($field[3]);
910 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
917 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
918 DXDb::process($self, $line);
922 if ($pcno == 50) { # keep alive/user list
923 my $node = DXCluster->get_exact($field[1]);
925 return unless $node->isa('DXNode');
926 return unless $node->dxchan == $self;
927 $node->update_users($field[2]);
932 if ($pcno == 51) { # incoming ping requests/answers
935 if ($field[1] eq $main::mycall) {
936 my $flag = $field[3];
938 $self->send(pc51($field[2], $field[1], '0'));
940 # it's a reply, look in the ping list for this one
941 my $ref = $pings{$field[2]};
943 my $tochan = DXChannel->get($field[2]);
946 my $dxchan = DXChannel->get($r->{call});
948 my $t = tv_interval($r->{t}, [ gettimeofday ]);
949 if ($dxchan->is_user) {
950 my $s = sprintf "%.2f", $t;
951 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
952 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
953 } elsif ($dxchan->is_node) {
955 $tochan->{nopings} = 2; # pump up the timer
956 push @{$tochan->{pingtime}}, $t;
957 shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
959 for (@{$tochan->{pingtime}}) {
962 $tochan->{pingave} = $st / @{$tochan->{pingtime}};
969 # route down an appropriate thingy
970 $self->route($field[1], $line);
975 if ($pcno == 75) { # dunno but route it
976 if ($field[1] ne $main::mycall) {
977 $self->route($field[1], $line);
982 if ($pcno == 73) { # WCY broadcasts
985 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
986 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
987 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
990 @field = map { unpad($_) } @field;
991 if (WCY::dup($d,@field[3..7])) {
992 dbg('chan', "Dup WCY Spot ignored\n");
996 my $wcy = WCY::update($d, @field[2..12]);
1000 $rep = Local::wwv($self, @field[1..12]);
1002 # dbg('local', "Local::wcy error $@") if $@;
1005 # broadcast to the eager world
1006 send_wcy_spot($self, $line, $d, @field[2..12]);
1010 if ($pcno == 84) { # remote commands (incoming)
1011 if ($field[1] eq $main::mycall) {
1012 my $ref = DXUser->get_current($field[2]);
1013 my $cref = DXCluster->get($field[2]);
1014 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
1015 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
1016 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
1017 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1018 my $oldpriv = $self->{priv};
1019 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1020 my @in = (DXCommandmode::run_cmd($self, $field[4]));
1021 $self->{priv} = $oldpriv;
1024 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1025 Log('rcmd', 'out', $field[2], $_);
1027 delete $self->{remotecmd};
1029 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1032 $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1035 my $ref = DXUser->get_current($field[1]);
1036 if ($ref && $ref->is_clx) {
1037 $self->route($field[1], $line);
1039 route($field[1], pc34($field[2], $field[1], $field[4]));
1045 if ($pcno == 85) { # remote command replies
1046 if ($field[1] eq $main::mycall) {
1047 my $dxchan = DXChannel->get($field[3]);
1049 $dxchan->send($field[4]);
1051 my $s = $rcmds{$field[2]};
1053 $dxchan = DXChannel->get($s->{call});
1054 $dxchan->send($field[4]) if $dxchan;
1055 delete $rcmds{$field[2]} if !$dxchan;
1057 # send unsolicited ones to the sysop
1058 my $dxchan = DXChannel->get($main::myalias);
1059 $dxchan->send($field[4]) if $dxchan;
1063 my $ref = DXUser->get_current($field[1]);
1064 if ($ref && $ref->is_clx) {
1065 $self->route($field[1], $line);
1067 route($field[1], pc35($field[2], $field[1], $field[4]));
1074 # if get here then rebroadcast the thing with its Hop count decremented (if
1075 # there is one). If it has a hop count and it decrements to zero then don't
1078 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1082 unless ($self->{isolate}) {
1083 broadcast_ak1a($line, $self); # send it to everyone but me
1088 # This is called from inside the main cluster processing loop and is used
1089 # for despatching commands that are doing some long processing job
1094 my @dxchan = DXChannel->get_all();
1097 foreach $dxchan (@dxchan) {
1098 next unless $dxchan->is_node();
1099 next if $dxchan == $me;
1101 # send a pc50 out on this channel
1102 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1103 $dxchan->send(pc50(scalar DXChannel::get_all_users));
1104 $dxchan->pc50_t($t);
1107 # send a ping out on this channel
1108 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1109 if ($dxchan->{nopings} <= 0) {
1110 $dxchan->disconnect;
1112 addping($main::mycall, $dxchan->call);
1113 $dxchan->{nopings} -= 1;
1114 $dxchan->{lastping} = $t;
1122 if ($main::systime - 3600 > $last_hour) {
1126 $last_hour = $main::systime;
1131 # finish up a pc context
1136 my $call = $self->call;
1138 my $ref = DXCluster->get_exact($call);
1140 # unbusy and stop and outgoing mail
1141 my $mref = DXMsg::get_busy($call);
1142 $mref->stop_msg($call) if $mref;
1144 # broadcast to all other nodes that all the nodes connected to via me are gone
1145 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1148 foreach $node (@gonenodes) {
1149 next if $node->call eq $call;
1150 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1154 # remove outstanding pings
1155 delete $pings{$call};
1157 # now broadcast to all other ak1a nodes that I have gone
1158 broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1160 # I was the last node visited
1161 $self->user->node($main::mycall);
1163 # send info to all logged in thingies
1164 $self->tell_login('logoutn');
1166 Log('DXProt', $call . " Disconnected");
1167 $ref->del() if $ref;
1171 # some active measures
1177 my @dxchan = DXChannel->get_all();
1180 # send it if it isn't the except list and isn't isolated and still has a hop count
1181 # taking into account filtering and so on
1182 foreach $dxchan (@dxchan) {
1184 my ($filter, $hops);
1186 if ($dxchan->{spotsfilter}) {
1187 ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1188 next unless $filter;
1191 if ($dxchan->is_node) {
1192 next if $dxchan == $self;
1195 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1197 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1198 next unless $routeit;
1201 $dxchan->send($routeit) if $routeit;
1203 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1205 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1206 my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1207 $buf .= "\a\a" if $dxchan->{beep};
1209 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1210 $dxchan->send($buf);
1212 $dxchan->delay($buf);
1222 my @dxchan = DXChannel->get_all();
1225 # send it if it isn't the except list and isn't isolated and still has a hop count
1226 # taking into account filtering and so on
1227 foreach $dxchan (@dxchan) {
1229 my ($filter, $hops);
1231 if ($dxchan->{wwvfilter}) {
1232 ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call} );
1233 next unless $filter;
1235 if ($dxchan->is_node) {
1236 next if $dxchan == $self;
1239 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1241 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1242 next unless $routeit;
1245 $dxchan->send($routeit) if $routeit;
1247 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1250 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1251 my $buf = "WWV de $_[6] <$_[1]>: SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1252 $buf .= "\a\a" if $dxchan->{beep};
1253 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1254 $dxchan->send($buf);
1256 $dxchan->delay($buf);
1266 my @dxchan = DXChannel->get_all();
1269 # send it if it isn't the except list and isn't isolated and still has a hop count
1270 # taking into account filtering and so on
1271 foreach $dxchan (@dxchan) {
1273 my ($filter, $hops);
1275 if ($dxchan->{wcyfilter}) {
1276 ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call} );
1277 next unless $filter;
1279 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1280 next if $dxchan == $self;
1283 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1285 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1286 next unless $routeit;
1289 $dxchan->send($routeit) if $routeit;
1291 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1293 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1294 my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1295 $buf .= "\a\a" if $dxchan->{beep};
1296 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1297 $dxchan->send($buf);
1299 $dxchan->delay($buf);
1310 my @dxchan = DXChannel->get_all();
1312 my $text = unpad($_[2]);
1316 if ($_[3] eq '*') { # sysops
1318 } elsif ($_[3] gt ' ') { # speciality list handling
1319 my ($name) = split /\./, $_[3];
1320 $target = "$name"; # put the rest in later (if bothered)
1327 $target = "All" if !$target;
1329 Log('ann', $target, $_[0], $text);
1331 # send it if it isn't the except list and isn't isolated and still has a hop count
1332 # taking into account filtering and so on
1333 foreach $dxchan (@dxchan) {
1335 my ($filter, $hops);
1337 if ($dxchan->{annfilter}) {
1338 my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1339 my @dxcc = Prefix::extract($_[0]);
1341 $ann_dxcc = $dxcc[1]->dxcc;
1342 $ann_itu = $dxcc[1]->itu;
1343 $ann_cq = $dxcc[1]->cq;
1345 @dxcc = Prefix::extract($_[4]);
1347 $org_dxcc = $dxcc[1]->dxcc;
1348 $org_itu = $dxcc[1]->itu;
1349 $org_cq = $dxcc[1]->cq;
1351 ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1352 next unless $filter;
1354 if ($dxchan->is_node && $_[1] ne $main::mycall) { # i.e not specifically routed to me
1355 next if $dxchan == $self;
1358 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1360 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1361 next unless $routeit;
1364 $dxchan->send($routeit) if $routeit;
1366 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1369 } elsif ($dxchan->is_user) {
1370 unless ($dxchan->{ann}) {
1371 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1373 next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1374 my $buf = "$to$target de $_[0]: $text";
1376 $buf .= "\a\a" if $dxchan->{beep};
1377 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1378 $dxchan->send($buf);
1380 $dxchan->delay($buf);
1386 sub send_local_config
1395 if ($self->{isolate}) {
1396 @localnodes = (DXCluster->get_exact($main::mycall));
1398 # create a list of all the nodes that are not connected to this connection
1399 # and are not themselves isolated, this to make sure that isolated nodes
1400 # don't appear outside of this node
1401 @nodes = DXNode::get_all();
1402 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1403 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1404 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1405 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1406 unshift @localnodes, DXCluster->get_exact($main::mycall);
1407 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1410 my @s = $me->pc19(@localnodes, @remotenodes);
1412 my $routeit = adjust_hops($self, $_);
1413 $self->send($routeit) if $routeit;
1416 # get all the users connected on the above nodes and send them out
1417 foreach $n (@localnodes, @remotenodes) {
1418 my @users = values %{$n->list};
1419 my @s = pc16($n, @users);
1421 my $routeit = adjust_hops($self, $_);
1422 $self->send($routeit) if $routeit;
1428 # route a message down an appropriate interface for a callsign
1430 # is called route(to, pcline);
1434 my ($self, $call, $line) = @_;
1436 if (ref $self && $call eq $self->{call}) {
1437 dbg('chan', "Trying to route back to source, dropped");
1441 # always send it down the local interface if available
1442 my $dxchan = DXChannel->get($call);
1444 my $cl = DXCluster->get_exact($call);
1445 $dxchan = $cl->dxchan if $cl;
1448 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1450 $dxchan->send($routeit);
1455 # broadcast a message to all clusters taking into account isolation
1456 # [except those mentioned after buffer]
1459 my $s = shift; # the line to be rebroadcast
1460 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1461 my @dxchan = DXChannel::get_all_nodes();
1464 # send it if it isn't the except list and isn't isolated and still has a hop count
1465 foreach $dxchan (@dxchan) {
1466 next if grep $dxchan == $_, @except;
1467 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1468 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1472 # broadcast a message to all clusters ignoring isolation
1473 # [except those mentioned after buffer]
1474 sub broadcast_all_ak1a
1476 my $s = shift; # the line to be rebroadcast
1477 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1478 my @dxchan = DXChannel::get_all_nodes();
1481 # send it if it isn't the except list and isn't isolated and still has a hop count
1482 foreach $dxchan (@dxchan) {
1483 next if grep $dxchan == $_, @except;
1484 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1485 $dxchan->send($routeit);
1489 # broadcast to all users
1490 # storing the spot or whatever until it is in a state to receive it
1493 my $s = shift; # the line to be rebroadcast
1494 my $sort = shift; # the type of transmission
1495 my $fref = shift; # a reference to an object to filter on
1496 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1497 my @dxchan = DXChannel::get_all_users();
1501 foreach $dxchan (@dxchan) {
1502 next if grep $dxchan == $_, @except;
1505 broadcast_list($s, $sort, $fref, @out);
1508 # broadcast to a list of users
1516 foreach $dxchan (@_) {
1519 if ($sort eq 'dx') {
1520 next unless $dxchan->{dx};
1521 ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1522 next unless $filter;
1524 next if $sort eq 'ann' && !$dxchan->{ann};
1525 next if $sort eq 'wwv' && !$dxchan->{wwv};
1526 next if $sort eq 'wcy' && !$dxchan->{wcy};
1527 next if $sort eq 'wx' && !$dxchan->{wx};
1529 $s =~ s/\a//og unless $dxchan->{beep};
1531 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1541 # obtain the hops from the list for this callsign and pc no
1547 my $hops = $DXProt::hopcount{$pcno};
1548 $hops = $DXProt::def_hopcount if !$hops;
1553 # adjust the hop count on a per node basis using the user loadable
1554 # hop table if available or else decrement an existing one
1561 my $call = $self->{call};
1564 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1565 my ($pcno) = $s =~ /^PC(\d\d)/o;
1566 confess "$call called adjust_hops with '$s'" unless $pcno;
1567 my $ref = $nodehops{$call} if %nodehops;
1569 my $newhops = $ref->{$pcno};
1570 return "" if defined $newhops && $newhops == 0;
1571 $newhops = $ref->{default} unless $newhops;
1572 return "" if defined $newhops && $newhops == 0;
1573 $newhops = $hops if !$newhops;
1574 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1576 # simply decrement it
1578 return "" if !$hops;
1579 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1591 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1592 do "$main::data/hop_table.pl";
1598 # add a ping request to the ping queues
1601 my ($from, $to) = @_;
1602 my $ref = $pings{$to} || [];
1605 $r->{t} = [ gettimeofday ];
1606 route(undef, $to, pc51($to, $main::mycall, 1));
1611 # add a rcmd request to the rcmd queues
1614 my ($self, $to, $cmd) = @_;
1617 $r->{call} = $self->{call};
1618 $r->{t} = $main::systime;
1622 my $ref = DXCluster->get_exact($to);
1623 if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1624 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1626 route(undef, $to, pc34($main::mycall, $to, $cmd));
1635 if ($self->{conn} && !$nopc39) {
1636 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1639 $self->SUPER::disconnect;
1644 # send a talk message to this thingy
1648 my ($self, $from, $to, $via, $line) = @_;
1650 $line =~ s/\^/\\5E/g; # remove any ^ characters
1651 $self->send(DXProt::pc10($from, $to, $via, $line));
1652 Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);