3 # This module impliments the protocal mode for a dx cluster
5 # Copyright (c) 1998 Dirk Koopman G1TLH
31 use vars qw($me $pc11_max_age $pc23_max_age $pc11_dup_age $pc23_dup_age
32 %spotdup %wwvdup $last_hour %pings %rcmds
33 %nodehops @baddx $baddxfn $pc12_dup_age
34 %anndup $allowzero $pc12_dup_lth $decode_dk0wcy);
36 $me = undef; # the channel id for this cluster
37 $decode_dk0wcy = undef; # if set use this callsign to decode announces from the EU WWV data beacon
38 $pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
39 $pc23_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc23
40 $pc11_dup_age = 24*3600; # the maximum time to keep the spot dup list for
41 $pc23_dup_age = 24*3600; # the maximum time to keep the wwv dup list for
42 $pc12_dup_age = 12*3600; # the maximum time to keep the ann dup list for
43 $pc12_dup_lth = 72; # the length of ANN text to save for deduping
44 %spotdup = (); # the pc11 and 26 dup hash
45 %wwvdup = (); # the pc23 and 27 dup hash
46 %anndup = (); # the PC12 dup hash
47 $last_hour = time; # last time I did an hourly periodic update
48 %pings = (); # outstanding ping requests outbound
49 %rcmds = (); # outstanding rcmd requests outbound
50 %nodehops = (); # node specific hop control
51 @baddx = (); # list of illegal spotted callsigns
53 $baddxfn = "$main::data/baddx.pl";
57 my $user = DXUser->get($main::mycall);
58 $DXProt::myprot_version += $main::version*100;
59 $me = DXProt->new($main::mycall, 0, $user);
61 $me->{state} = "indifferent";
62 do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
64 # $me->{sort} = 'M'; # M for me
66 # now prime the spot duplicates file with today's and yesterday's data
67 my @today = Julian::unixtoj(time);
68 my @spots = Spot::readfile(@today);
69 @today = Julian::sub(@today, 1);
70 push @spots, Spot::readfile(@today);
72 my $dupkey = "$_->[0]$_->[1]$_->[2]$_->[3]$_->[4]";
73 $spotdup{$dupkey} = $_->[2];
76 # now prime the wwv duplicates file with just this month's data
77 my @wwv = Geomag::readfile(time);
79 my $dupkey = "$_->[1].$_->[2]$_->[3]$_->[4]";
80 $wwvdup{$dupkey} = $_->[1];
84 do "$baddxfn" if -e "$baddxfn";
89 # obtain a new connection this is derived from dxchannel
94 my $self = DXChannel::alloc(@_);
95 $self->{'sort'} = 'A'; # in absence of how to find out what sort of an object I am
99 # this is how a pc connection starts (for an incoming connection)
100 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
101 # all the crap that comes between).
104 my ($self, $line, $sort) = @_;
105 my $call = $self->{call};
106 my $user = $self->{user};
108 # remember type of connection
109 $self->{consort} = $line;
110 $self->{outbound} = $sort eq 'O';
111 $self->{priv} = $user->priv;
112 $self->{lang} = $user->lang;
113 $self->{isolate} = $user->{isolate};
114 $self->{consort} = $line; # save the connection type
118 $self->{spotfilter} = Filter::read_in('spots', $call);
119 $self->{wwvfilter} = Filter::read_in('wwv', $call);
120 $self->{annfilter} = Filter::read_in('ann', $call);
122 # set unbuffered and no echo
123 $self->send_now('B',"0");
124 $self->send_now('E',"0");
126 # send initialisation string
127 if (!$self->{outbound}) {
128 $self->send(pc38()) if DXNode->get_all();
131 $self->state('init');
134 Log('DXProt', "$call connected");
138 # This is the normal pcxx despatcher
142 my ($self, $line) = @_;
143 my @field = split /\^/, $line;
144 pop @field if $field[-1] eq '~';
146 # print join(',', @field), "\n";
148 # ignore any lines that don't start with PC
149 return if !$field[0] =~ /^PC/;
152 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
154 return if $pcno < 10 || $pcno > 51;
156 # dump bad protocol messages unless it is a PC29
157 if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
158 dbg('chan', "CORRUPT protocol message - dumped");
165 $pcr = Local::pcprot($self, $pcno, @field);
167 # dbg('local', "Local::pcprot error $@") if $@;
171 if ($pcno == 10) { # incoming talk
173 # is it for me or one of mine?
174 my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
175 if ($call eq $main::mycall || grep $_ eq $call, get_all_user_calls()) {
178 my $text = unpad($field[3]);
179 Log('talk', $call, $field[1], $field[6], $text);
180 $call = $main::myalias if $call eq $main::mycall;
181 my $ref = DXChannel->get($call);
182 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
184 route($field[2], $line); # relay it on its way
189 if ($pcno == 11 || $pcno == 26) { # dx spot
191 # route 'foreign' pc26s
193 if ($field[7] ne $main::mycall) {
194 route($field[7], $line);
199 # if this is a 'nodx' node then ignore it
200 last SWITCH if grep $field[7] =~ /^$_/, @DXProt::nodx_node;
202 # convert the date to a unix date
203 my $d = cltounix($field[3], $field[4]);
204 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
205 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
206 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
210 # strip off the leading & trailing spaces from the comment
211 my $text = unpad($field[5]);
214 my $spotter = $field[6];
215 $spotter =~ s/-[\@\d]+$//o; # strip off the ssid from the spotter
218 my $freq = $field[1] - 0;
219 my $dupkey = "$freq$field[2]$d$text$spotter";
220 if ($spotdup{$dupkey}) {
221 dbg('chan', "Duplicate Spot ignored\n");
225 $spotdup{$dupkey} = $d;
228 if (grep $field[2] eq $_, @baddx) {
229 dbg('chan', "Bad DX spot, ignored");
233 # are any of the crucial fields invalid?
234 if ($field[2] =~ /[a-z]/ || $field[6] =~ /[a-z]/ || $field[7] =~ /[a-z]/) {
235 dbg('chan', "Spot contains lower case callsigns, rejected");
239 my @spot = Spot::add($freq, $field[2], $d, $text, $spotter, $field[7]);
242 # @spot at this point contains:-
243 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
244 # then spotted itu, spotted cq, spotters itu, spotters cq
245 # you should be able to route on any of these
251 $r = Local::spot($self, @spot);
253 # dbg('local', "Local::spot1 error $@") if $@;
256 # DON'T be silly and send on PC26s!
257 return if $pcno == 26;
259 # send out the filtered spots
260 send_dx_spot($self, $line, @spot) if @spot;
264 if ($pcno == 12) { # announces
265 # announce duplicate checking
266 my $text = substr(uc unpad($field[3]), 0, $pc12_dup_lth);
267 my $dupkey = $field[1].$field[2].$text.$field[4].$field[6];
268 if ($anndup{$dupkey}) {
269 dbg('chan', "Duplicate Announce ignored\n");
272 $anndup{$dupkey} = $main::systime;
274 # global ann filtering on INPUT
275 my ($filter, $hops) = Filter::it($self->{annfilter}, @field[1..6], $self->{call} ) if $self->{annfilter};
276 if ($self->{annfilter} && !$filter) {
277 dbg('chan', "Rejected by filter");
281 if ($field[2] eq '*' || $field[2] eq $main::mycall) {
283 # strip leading and trailing stuff
284 my $text = unpad($field[3]);
289 if ($field[4] eq '*') { # sysops
291 @list = map { $_->priv >= 5 ? $_ : () } get_all_users();
292 } elsif ($field[4] gt ' ') { # speciality list handling
293 my ($name) = split /\./, $field[4];
294 $target = "$name"; # put the rest in later (if bothered)
297 if ($field[6] eq '1') {
301 $target = "All" if !$target;
304 broadcast_list("$to$target de $field[1]: $text", 'ann', undef, @list);
306 broadcast_users("$target de $field[1]: $text", 'ann', undef);
308 Log('ann', $target, $field[1], $text);
310 if ($decode_dk0wcy && $field[1] eq $decode_dk0wcy) {
311 my ($hour, $k, $next, $a, $r, $sfi, $alarm) = $field[3] =~ /^Aurora Beacon\s+(\d+)UTC,\s+Kiel\s+K=(\d+),.*ed\s+K=(\d+),\s+A=(\d+),\s+R=(\d+),\s+SFI=(\d+),.*larm:\s+(\w+)/;
312 $alarm = ($alarm =~ /^Y/i) ? ', Aurora in DE' : '';
313 my $wwv = Geomag::update($main::systime, $hour, $sfi, $a, $k, "R=$r, Next K=$next$alarm", $decode_dk0wcy, $field[5], $r);
316 return if $field[2] eq $main::mycall; # it's routed to me
318 route($field[2], $line);
319 return; # only on a routed one
335 if ($pcno == 16) { # add a user
336 my $node = DXCluster->get_exact($field[1]);
337 return unless $node; # ignore if havn't seen a PC19 for this one yet
338 return unless $node->isa('DXNode');
339 if ($node->dxchan != $self) {
340 dbg('chan', "LOOP: $field[1] came in on wrong channel");
344 if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
345 dbg('chan', "LOOP: $field[1] connected locally");
351 for ($i = 2; $i < $#field; $i++) {
352 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
353 next if !$call || length $call < 3 || length $call > 8;
356 next if DXCluster->get_exact($call); # we already have this (loop?)
358 $confmode = $confmode eq '*';
359 DXNodeuser->new($self, $node, $call, $confmode, $here);
361 # add this station to the user database, if required
362 $call =~ s/-\d+$//o; # remove ssid for users
363 my $user = DXUser->get_current($call);
364 $user = DXUser->new($call) if !$user;
365 $user->homenode($node->call) if !$user->homenode;
366 $user->node($node->call);
367 $user->lastin($main::systime) unless DXChannel->get($call);
371 # queue up any messages (look for privates only)
372 DXMsg::queue_msg(1) if $self->state eq 'normal';
376 if ($pcno == 17) { # remove a user
377 my $node = DXCluster->get_exact($field[2]);
379 return unless $node->isa('DXNode');
380 if ($node->dxchan != $self) {
381 dbg('chan', "LOOP: $field[2] came in on wrong channel");
385 if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
386 dbg('chan', "LOOP: $field[2] connected locally");
389 my $ref = DXCluster->get_exact($field[1]);
394 if ($pcno == 18) { # link request
395 $self->state('init');
397 # first clear out any nodes on this dxchannel
398 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
399 foreach my $node (@gonenodes) {
400 next if $node->dxchan == $DXProt::me;
401 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
404 $self->send_local_config();
406 return; # we don't pass these on
409 if ($pcno == 19) { # incoming cluster list
411 my $newline = "PC19^";
412 for ($i = 1; $i < $#field-1; $i += 4) {
413 my $here = $field[$i];
414 my $call = uc $field[$i+1];
415 my $confmode = $field[$i+2];
416 my $ver = $field[$i+3];
418 $ver = 5400 if !$ver && $allowzero;
420 # now check the call over
421 my $node = DXCluster->get_exact($call);
424 if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
425 dbg('chan', "LOOP: $call connected locally");
427 if ($node->dxchan != $self) {
428 dbg('chan', "LOOP: $call come in on wrong channel");
431 dbg('chan', "already have $call");
435 # check for sane parameters
436 next if $ver < 5000; # only works with version 5 software
437 next if length $call < 3; # min 3 letter callsigns
439 # add it to the nodes table and outgoing line
440 $newline .= "$here^$call^$confmode^$ver^";
441 DXNode->new($self, $call, $confmode, $here, $ver);
443 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
444 my $mref = DXMsg::get_busy($call);
445 $mref->stop_msg($call) if $mref;
447 # add this station to the user database, if required (don't remove SSID from nodes)
448 my $user = DXUser->get_current($call);
450 $user = DXUser->new($call);
452 $user->priv(1); # I have relented and defaulted nodes
453 $self->{priv} = 1; # to user RCMDs allowed
454 $user->homenode($call);
457 $user->lastin($main::systime) unless DXChannel->get($call);
461 return if $newline eq "PC19^";
464 $newline .= get_hops(19) . "^";
469 if ($pcno == 20) { # send local configuration
470 $self->send_local_config();
472 $self->state('normal');
476 if ($pcno == 21) { # delete a cluster from the list
477 my $call = uc $field[1];
478 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
479 my $node = DXCluster->get_exact($call);
481 if ($node->dxchan != $self) {
482 dbg('chan', "LOOP: $call come in on wrong channel");
486 if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
487 dbg('chan', "LOOP: $call connected locally");
492 dbg('chan', "$call not in table, dropped");
500 $self->state('normal');
504 if ($pcno == 23 || $pcno == 27) { # WWV info
506 # route 'foreign' pc27s
508 if ($field[8] ne $main::mycall) {
509 route($field[8], $line);
515 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
516 my $sfi = unpad($field[3]);
517 my $k = unpad($field[4]);
518 my $i = unpad($field[5]);
519 my $r = $field[6] =~ /R=(\d+)/ || 0;
520 my $dupkey = "$d.$sfi$k$i";
521 if ($wwvdup{$dupkey}) {
522 dbg('chan', "Dup WWV Spot ignored\n");
525 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 900 || $field[2] < 0 || $field[2] > 23) {
526 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
529 $wwvdup{$dupkey} = $d;
530 $field[6] =~ s/-\d+$//o; # remove spotter's ssid
532 my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
536 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
538 # dbg('local', "Local::wwv2 error $@") if $@;
541 # DON'T be silly and send on PC27s!
542 return if $pcno == 27;
544 # broadcast to the eager world
545 send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
549 if ($pcno == 24) { # set here status
550 my $call = uc $field[1];
551 my $ref = DXCluster->get_exact($call);
552 $ref->here($field[2]) if $ref;
556 if ($pcno == 25) { # merge request
557 if ($field[1] ne $main::mycall) {
558 route($field[1], $line);
561 if ($field[2] eq $main::mycall) {
562 dbg('chan', "Trying to merge to myself, ignored");
566 Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
570 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
573 $self->send(pc26(@{$in}[0..4], $field[2]));
579 my @in = reverse Geomag::search(0, $field[4], time, 1);
582 $self->send(pc27(@{$in}[0..5], $field[2]));
588 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
589 if ($pcno == 49 || $field[1] eq $main::mycall) {
590 DXMsg::process($self, $line);
592 route($field[1], $line);
597 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
598 if ($field[1] eq $main::mycall) {
599 my $ref = DXUser->get_current($field[2]);
600 my $cref = DXCluster->get($field[2]);
601 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
602 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
603 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
604 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
605 my $oldpriv = $self->{priv};
606 $self->{priv} = $ref->{priv}; # assume the user's privilege level
607 my @in = (DXCommandmode::run_cmd($self, $field[3]));
608 $self->{priv} = $oldpriv;
611 $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
612 Log('rcmd', 'out', $field[2], $_);
614 delete $self->{remotecmd};
616 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
619 $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
622 route($field[1], $line);
627 if ($pcno == 35) { # remote command replies
628 if ($field[1] eq $main::mycall) {
629 my $s = $rcmds{$field[2]};
631 my $dxchan = DXChannel->get($s->{call});
632 $dxchan->send($field[3]) if $dxchan;
633 delete $rcmds{$field[2]} if !$dxchan;
636 route($field[1], $line);
641 # for pc 37 see 44 onwards
643 if ($pcno == 38) { # node connected list from neighbour
647 if ($pcno == 39) { # incoming disconnect
652 if ($pcno == 41) { # user info
653 # add this station to the user database, if required
654 my $user = DXUser->get_current($field[1]);
656 # then try without an SSID
657 $field[1] =~ s/-\d+$//o;
658 $user = DXUser->get_current($field[1]);
660 $user = DXUser->new($field[1]) if !$user;
662 if ($field[2] == 1) {
663 $user->name($field[3]);
664 } elsif ($field[2] == 2) {
665 $user->qth($field[3]);
666 } elsif ($field[2] == 3) {
667 my ($lat, $long) = DXBearing::stoll($field[3]);
670 } elsif ($field[2] == 4) {
671 $user->homenode($field[3]);
679 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47) {
680 if ($field[1] eq $main::mycall) {
683 route($field[1], $line);
688 if ($pcno == 50) { # keep alive/user list
689 my $node = DXCluster->get_exact($field[1]);
691 return unless $node->isa('DXNode');
692 return unless $node->dxchan == $self;
693 $node->update_users($field[2]);
698 if ($pcno == 51) { # incoming ping requests/answers
701 if ($field[1] eq $main::mycall) {
702 my $flag = $field[3];
704 $self->send(pc51($field[2], $field[1], '0'));
706 # it's a reply, look in the ping list for this one
707 my $ref = $pings{$field[2]};
710 my $dxchan = DXChannel->get($r->{call});
711 $dxchan->send($dxchan->msg('pingi', $field[2], atime($main::systime), $main::systime - $r->{t})) if $dxchan;
716 # route down an appropriate thingy
717 route($field[1], $line);
723 # if get here then rebroadcast the thing with its Hop count decremented (if
724 # there is one). If it has a hop count and it decrements to zero then don't
727 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
731 if (!$self->{isolate}) {
732 broadcast_ak1a($line, $self); # send it to everyone but me
737 # This is called from inside the main cluster processing loop and is used
738 # for despatching commands that are doing some long processing job
743 my @dxchan = DXChannel->get_all();
746 foreach $dxchan (@dxchan) {
747 next unless $dxchan->is_ak1a();
748 next if $dxchan == $me;
750 # send a pc50 out on this channel
751 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
752 $dxchan->send(pc50());
760 if ($main::systime - 3600 > $last_hour) {
761 $cutoff = $main::systime - $pc11_dup_age;
762 while (($key, $val) = each %spotdup) {
763 delete $spotdup{$key} if $val < $cutoff;
765 $cutoff = $main::systime - $pc23_dup_age;
766 while (($key, $val) = each %wwvdup) {
767 delete $wwvdup{$key} if $val < $cutoff;
769 $cutoff = $main::systime - $pc12_dup_age;
770 while (($key, $val) = each %anndup) {
771 delete $anndup{$key} if $val < $cutoff;
773 $last_hour = $main::systime;
778 # finish up a pc context
783 my $call = $self->call;
784 my $ref = DXCluster->get_exact($call);
786 # unbusy and stop and outgoing mail
787 my $mref = DXMsg::get_busy($call);
788 $mref->stop_msg($call) if $mref;
790 # broadcast to all other nodes that all the nodes connected to via me are gone
791 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
794 foreach $node (@gonenodes) {
795 next if $node->call eq $call;
796 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
800 # remove outstanding pings
801 delete $pings{$call};
803 # now broadcast to all other ak1a nodes that I have gone
804 broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
806 Log('DXProt', $call . " Disconnected");
811 # some active measures
817 my @dxchan = DXChannel->get_all();
820 # send it if it isn't the except list and isn't isolated and still has a hop count
821 # taking into account filtering and so on
822 foreach $dxchan (@dxchan) {
826 if ($dxchan->{spotfilter}) {
827 ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
831 if ($dxchan->is_ak1a) {
832 next if $dxchan == $self;
835 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
837 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
838 next unless $routeit;
841 $dxchan->send($routeit) if $routeit;
843 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
846 } elsif ($dxchan->is_user && $dxchan->{dx}) {
847 my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
848 $buf .= "\a\a" if $dxchan->{beep};
849 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
850 $dxchan->send($buf) if !$hops || ($hops && $filter);
852 $dxchan->delay($buf) if !$hops || ($hops && $filter);
862 my @dxchan = DXChannel->get_all();
865 # send it if it isn't the except list and isn't isolated and still has a hop count
866 # taking into account filtering and so on
867 foreach $dxchan (@dxchan) {
869 my ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} ) if $dxchan->{wwvfilter};
870 if ($dxchan->is_ak1a) {
871 next if $dxchan == $self;
874 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
876 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
877 next unless $routeit;
880 $dxchan->send($routeit) if $routeit;
882 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
885 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
886 my $buf = "WWV de $_[6] <$_[1]>: SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
887 $buf .= "\a\a" if $dxchan->{beep};
888 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
889 $dxchan->send($buf) if !$hops || ($hops && $filter);
891 $dxchan->delay($buf) if !$hops || ($hops && $filter);
897 sub send_local_config
906 if ($self->{isolate}) {
907 @localnodes = (DXCluster->get_exact($main::mycall));
909 # create a list of all the nodes that are not connected to this connection
910 # and are not themselves isolated, this to make sure that isolated nodes
911 # don't appear outside of this node
912 @nodes = DXNode::get_all();
913 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
914 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
915 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
916 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
917 unshift @localnodes, DXCluster->get_exact($main::mycall);
918 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
921 my @s = $me->pc19(@localnodes, @remotenodes);
923 my $routeit = adjust_hops($self, $_);
924 $self->send($routeit) if $routeit;
927 # get all the users connected on the above nodes and send them out
928 foreach $n (@localnodes, @remotenodes) {
929 my @users = values %{$n->list};
930 my @s = pc16($n, @users);
932 my $routeit = adjust_hops($self, $_);
933 $self->send($routeit) if $routeit;
939 # route a message down an appropriate interface for a callsign
941 # is called route(to, pcline);
945 my ($call, $line) = @_;
946 my $cl = DXCluster->get_exact($call);
949 my $dxchan = $cl->{dxchan};
951 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
953 $dxchan->send($routeit) if $dxchan;
959 # broadcast a message to all clusters taking into account isolation
960 # [except those mentioned after buffer]
963 my $s = shift; # the line to be rebroadcast
964 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
965 my @dxchan = get_all_ak1a();
968 # send it if it isn't the except list and isn't isolated and still has a hop count
969 foreach $dxchan (@dxchan) {
970 next if grep $dxchan == $_, @except;
971 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
972 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
976 # broadcast a message to all clusters ignoring isolation
977 # [except those mentioned after buffer]
978 sub broadcast_all_ak1a
980 my $s = shift; # the line to be rebroadcast
981 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
982 my @dxchan = get_all_ak1a();
985 # send it if it isn't the except list and isn't isolated and still has a hop count
986 foreach $dxchan (@dxchan) {
987 next if grep $dxchan == $_, @except;
988 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
989 $dxchan->send($routeit);
993 # broadcast to all users
994 # storing the spot or whatever until it is in a state to receive it
997 my $s = shift; # the line to be rebroadcast
998 my $sort = shift; # the type of transmission
999 my $fref = shift; # a reference to an object to filter on
1000 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1001 my @dxchan = get_all_users();
1005 foreach $dxchan (@dxchan) {
1006 next if grep $dxchan == $_, @except;
1009 broadcast_list($s, $sort, $fref, @out);
1012 # broadcast to a list of users
1020 foreach $dxchan (@_) {
1023 if ($sort eq 'dx') {
1024 next unless $dxchan->{dx};
1025 ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1026 next unless $filter;
1028 next if $sort eq 'ann' && !$dxchan->{ann};
1029 next if $sort eq 'wwv' && !$dxchan->{wwv};
1030 next if $sort eq 'wx' && !$dxchan->{wx};
1032 $s =~ s/\a//og unless $dxchan->{beep};
1034 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1043 # gimme all the ak1a nodes
1047 my @list = DXChannel->get_all();
1050 foreach $ref (@list) {
1051 push @out, $ref if $ref->is_ak1a;
1056 # return a list of all users
1059 my @list = DXChannel->get_all();
1062 foreach $ref (@list) {
1063 push @out, $ref if $ref->is_user;
1068 # return a list of all user callsigns
1069 sub get_all_user_calls
1071 my @list = DXChannel->get_all();
1074 foreach $ref (@list) {
1075 push @out, $ref->call if $ref->is_user;
1081 # obtain the hops from the list for this callsign and pc no
1087 my $hops = $DXProt::hopcount{$pcno};
1088 $hops = $DXProt::def_hopcount if !$hops;
1093 # adjust the hop count on a per node basis using the user loadable
1094 # hop table if available or else decrement an existing one
1101 my $call = $self->{call};
1104 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1105 my ($pcno) = $s =~ /^PC(\d\d)/o;
1106 confess "$call called adjust_hops with '$s'" unless $pcno;
1107 my $ref = $nodehops{$call} if %nodehops;
1109 my $newhops = $ref->{$pcno};
1110 return "" if defined $newhops && $newhops == 0;
1111 $newhops = $ref->{default} unless $newhops;
1112 return "" if defined $newhops && $newhops == 0;
1113 $newhops = $hops if !$newhops;
1114 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1116 # simply decrement it
1118 return "" if !$hops;
1119 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1131 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1132 do "$main::data/hop_table.pl";
1137 # remove leading and trailing spaces from an input string
1141 $s =~ s/^\s+|\s+$//;
1145 # add a ping request to the ping queues
1148 my ($from, $to) = @_;
1149 my $ref = $pings{$to};
1150 $ref = $pings{$to} = [] if !$ref;
1153 $r->{t} = $main::systime;
1154 route($to, pc51($to, $main::mycall, 1));
1158 # add a rcmd request to the rcmd queues
1161 my ($from, $to, $cmd) = @_;
1164 $r->{t} = $main::systime;
1166 route($to, pc34($main::mycall, $to, $cmd));