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 return unless $node; # ignore if havn't seen a PC19 for this one yet
508 unless ($node->isa('DXNode')) {
509 dbg('chan', "$field[1] is not a node");
512 if ($node->dxchan != $self) {
513 dbg('chan', "LOOP: $field[1] came in on wrong channel");
516 if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
517 dbg('chan', "LOOP: $field[1] connected locally");
522 for ($i = 2; $i < $#field; $i++) {
523 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
524 next unless $call && $confmode && defined $here && is_callsign($call);
525 my $ref = DXCluster->get_exact($call);
527 if ($ref->isa('DXNode')) {
528 dbg('chan', "LOOP: $call is a node");
531 my $rcall = $ref->call;
532 dbg('chan', "LOOP: already have $call on $rcall");
536 $confmode = $confmode eq '*';
537 DXNodeuser->new($self, $node, $call, $confmode, $here);
539 # add this station to the user database, if required
540 $call =~ s/-\d+$//o; # remove ssid for users
541 my $user = DXUser->get_current($call);
542 $user = DXUser->new($call) if !$user;
543 $user->homenode($node->call) if !$user->homenode;
544 $user->node($node->call);
545 $user->lastin($main::systime) unless DXChannel->get($call);
549 # queue up any messages (look for privates only)
550 DXMsg::queue_msg(1) if $self->state eq 'normal';
554 if ($pcno == 17) { # remove a user
555 my $node = DXCluster->get_exact($field[2]);
557 if (!$node && ($dxchan = DXChannel->get($field[2]))) {
558 # add it to the node table if it isn't present and it's
560 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
561 dbg('chan', "$field[2] no PC19 yet, autovivified as node");
562 # broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
565 unless ($node->isa('DXNode')) {
566 dbg('chan', "LOOP: $field[2] is not a node");
569 if ($node->dxchan != $self) {
570 dbg('chan', "LOOP: $field[2] came in on wrong channel");
573 if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
574 dbg('chan', "LOOP: $field[2] connected locally");
577 my $ref = DXCluster->get_exact($field[1]);
581 dbg('chan', "$field[1] not known" );
586 if ($pcno == 18) { # link request
587 $self->state('init');
589 # first clear out any nodes on this dxchannel
590 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
591 foreach my $node (@gonenodes) {
592 next if $node->dxchan == $DXProt::me;
593 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
596 $self->send_local_config();
598 return; # we don't pass these on
601 if ($pcno == 19) { # incoming cluster list
603 my $newline = "PC19^";
604 for ($i = 1; $i < $#field-1; $i += 4) {
605 my $here = $field[$i];
606 my $call = uc $field[$i+1];
607 my $confmode = $field[$i+2];
608 my $ver = $field[$i+3];
609 next unless defined $here && defined $confmode && is_callsign($call);
611 $ver = 5400 if !$ver && $allowzero;
613 # now check the call over
614 my $node = DXCluster->get_exact($call);
617 if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
618 dbg('chan', "LOOP: $call connected locally");
620 if ($node->dxchan != $self) {
621 dbg('chan', "LOOP: $call come in on wrong channel");
624 dbg('chan', "already have $call");
628 # check for sane parameters
629 next if $ver < 5000; # only works with version 5 software
630 next if length $call < 3; # min 3 letter callsigns
632 # add it to the nodes table and outgoing line
633 $newline .= "$here^$call^$confmode^$ver^";
634 DXNode->new($self, $call, $confmode, $here, $ver);
636 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
637 my $mref = DXMsg::get_busy($call);
638 $mref->stop_msg($call) if $mref;
640 # add this station to the user database, if required (don't remove SSID from nodes)
641 my $user = DXUser->get_current($call);
643 $user = DXUser->new($call);
645 $user->priv(1); # I have relented and defaulted nodes
646 $self->{priv} = 1; # to user RCMDs allowed
647 $user->homenode($call);
650 $user->lastin($main::systime) unless DXChannel->get($call);
654 return if $newline eq "PC19^";
657 $newline .= get_hops(19) . "^";
662 if ($pcno == 20) { # send local configuration
663 $self->send_local_config();
665 $self->state('normal');
669 if ($pcno == 21) { # delete a cluster from the list
670 my $call = uc $field[1];
671 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
672 my $node = DXCluster->get_exact($call);
674 unless ($node->isa('DXNode')) {
675 dbg('chan', "$call is not a node");
678 if ($call eq $self->{call}) {
679 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
682 if ($node->dxchan != $self) {
683 dbg('chan', "LOOP: $call come in on wrong channel");
687 if ($dxchan = DXChannel->get($call)) {
688 dbg('chan', "LOOP: $call connected locally");
693 dbg('chan', "$call not in table, dropped");
701 $self->state('normal');
705 if ($pcno == 23 || $pcno == 27) { # WWV info
707 # route 'foreign' pc27s
709 if ($field[8] ne $main::mycall) {
710 $self->route($field[8], $line);
716 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
717 my $sfi = unpad($field[3]);
718 my $k = unpad($field[4]);
719 my $i = unpad($field[5]);
720 my ($r) = $field[6] =~ /R=(\d+)/;
722 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
723 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
726 if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
727 dbg('chan', "Dup WWV Spot ignored\n");
730 $field[7] =~ s/-\d+$//o; # remove spotter's ssid
732 my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
736 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
738 # dbg('local', "Local::wwv2 error $@") if $@;
741 # DON'T be silly and send on PC27s!
742 return if $pcno == 27;
744 # broadcast to the eager world
745 send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
749 if ($pcno == 24) { # set here status
750 my $call = uc $field[1];
751 my $ref = DXCluster->get_exact($call);
752 $ref->here($field[2]) if $ref;
756 if ($pcno == 25) { # merge request
757 if ($field[1] ne $main::mycall) {
758 $self->route($field[1], $line);
761 if ($field[2] eq $main::mycall) {
762 dbg('chan', "Trying to merge to myself, ignored");
766 Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
770 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
773 $self->send(pc26(@{$in}[0..4], $field[2]));
779 my @in = reverse Geomag::search(0, $field[4], time, 1);
782 $self->send(pc27(@{$in}[0..5], $field[2]));
788 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
789 if ($pcno == 49 || $field[1] eq $main::mycall) {
790 DXMsg::process($self, $line);
792 $self->route($field[1], $line) unless $self->is_clx;
797 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
798 if ($field[1] eq $main::mycall) {
799 my $ref = DXUser->get_current($field[2]);
800 my $cref = DXCluster->get($field[2]);
801 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
802 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
803 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
804 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
805 my $oldpriv = $self->{priv};
806 $self->{priv} = $ref->{priv}; # assume the user's privilege level
807 my @in = (DXCommandmode::run_cmd($self, $field[3]));
808 $self->{priv} = $oldpriv;
811 $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
812 Log('rcmd', 'out', $field[2], $_);
814 delete $self->{remotecmd};
816 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
819 $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
822 my $ref = DXUser->get_current($field[1]);
823 if ($ref && $ref->is_clx) {
824 route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
826 $self->route($field[1], $line);
832 if ($pcno == 35) { # remote command replies
833 if ($field[1] eq $main::mycall) {
834 my $s = $rcmds{$field[2]};
836 my $dxchan = DXChannel->get($s->{call});
837 $dxchan->send($field[3]) if $dxchan;
838 delete $rcmds{$field[2]} if !$dxchan;
840 # send unsolicited ones to the sysop
841 my $dxchan = DXChannel->get($main::myalias);
842 $dxchan->send($field[3]) if $dxchan;
845 my $ref = DXUser->get_current($field[1]);
846 if ($ref && $ref->is_clx) {
847 route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
849 $self->route($field[1], $line);
855 # for pc 37 see 44 onwards
857 if ($pcno == 38) { # node connected list from neighbour
861 if ($pcno == 39) { # incoming disconnect
862 $self->disconnect(1);
866 if ($pcno == 41) { # user info
867 # add this station to the user database, if required
868 my $user = DXUser->get_current($field[1]);
870 # then try without an SSID
871 $field[1] =~ s/-\d+$//o;
872 $user = DXUser->get_current($field[1]);
874 $user = DXUser->new($field[1]) if !$user;
876 if ($field[2] == 1) {
877 $user->name($field[3]);
878 } elsif ($field[2] == 2) {
879 $user->qth($field[3]);
880 } elsif ($field[2] == 3) {
881 my ($lat, $long) = DXBearing::stoll($field[3]);
884 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
885 } elsif ($field[2] == 4) {
886 $user->homenode($field[3]);
888 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
895 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
896 DXDb::process($self, $line);
900 if ($pcno == 50) { # keep alive/user list
901 my $node = DXCluster->get_exact($field[1]);
903 return unless $node->isa('DXNode');
904 return unless $node->dxchan == $self;
905 $node->update_users($field[2]);
910 if ($pcno == 51) { # incoming ping requests/answers
913 if ($field[1] eq $main::mycall) {
914 my $flag = $field[3];
916 $self->send(pc51($field[2], $field[1], '0'));
918 # it's a reply, look in the ping list for this one
919 my $ref = $pings{$field[2]};
921 my $tochan = DXChannel->get($field[2]);
924 my $dxchan = DXChannel->get($r->{call});
926 my $t = tv_interval($r->{t}, [ gettimeofday ]);
927 if ($dxchan->is_user) {
928 my $s = sprintf "%.2f", $t;
929 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
930 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
931 } elsif ($dxchan->is_node) {
933 $tochan->{nopings} = 2; # pump up the timer
934 push @{$tochan->{pingtime}}, $t;
935 shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
937 for (@{$tochan->{pingtime}}) {
940 $tochan->{pingave} = $st / @{$tochan->{pingtime}};
947 # route down an appropriate thingy
948 $self->route($field[1], $line);
953 if ($pcno == 75) { # dunno but route it
954 if ($field[1] ne $main::mycall) {
955 $self->route($field[1], $line);
960 if ($pcno == 73) { # WCY broadcasts
963 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
964 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
965 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
968 @field = map { unpad($_) } @field;
969 if (WCY::dup($d,@field[3..7])) {
970 dbg('chan', "Dup WCY Spot ignored\n");
974 my $wcy = WCY::update($d, @field[2..12]);
978 $rep = Local::wwv($self, @field[1..12]);
980 # dbg('local', "Local::wcy error $@") if $@;
983 # broadcast to the eager world
984 send_wcy_spot($self, $line, $d, @field[2..12]);
988 if ($pcno == 84) { # remote commands (incoming)
989 if ($field[1] eq $main::mycall) {
990 my $ref = DXUser->get_current($field[2]);
991 my $cref = DXCluster->get($field[2]);
992 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
993 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
994 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
995 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
996 my $oldpriv = $self->{priv};
997 $self->{priv} = $ref->{priv}; # assume the user's privilege level
998 my @in = (DXCommandmode::run_cmd($self, $field[4]));
999 $self->{priv} = $oldpriv;
1002 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
1003 Log('rcmd', 'out', $field[2], $_);
1005 delete $self->{remotecmd};
1007 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
1010 $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
1013 my $ref = DXUser->get_current($field[1]);
1014 if ($ref && $ref->is_clx) {
1015 $self->route($field[1], $line);
1017 route($field[1], pc34($field[2], $field[1], $field[4]));
1023 if ($pcno == 85) { # remote command replies
1024 if ($field[1] eq $main::mycall) {
1025 my $dxchan = DXChannel->get($field[3]);
1027 $dxchan->send($field[4]);
1029 my $s = $rcmds{$field[2]};
1031 $dxchan = DXChannel->get($s->{call});
1032 $dxchan->send($field[4]) if $dxchan;
1033 delete $rcmds{$field[2]} if !$dxchan;
1035 # send unsolicited ones to the sysop
1036 my $dxchan = DXChannel->get($main::myalias);
1037 $dxchan->send($field[4]) if $dxchan;
1041 my $ref = DXUser->get_current($field[1]);
1042 if ($ref && $ref->is_clx) {
1043 $self->route($field[1], $line);
1045 route($field[1], pc35($field[2], $field[1], $field[4]));
1052 # if get here then rebroadcast the thing with its Hop count decremented (if
1053 # there is one). If it has a hop count and it decrements to zero then don't
1056 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1060 unless ($self->{isolate}) {
1061 broadcast_ak1a($line, $self); # send it to everyone but me
1066 # This is called from inside the main cluster processing loop and is used
1067 # for despatching commands that are doing some long processing job
1072 my @dxchan = DXChannel->get_all();
1075 foreach $dxchan (@dxchan) {
1076 next unless $dxchan->is_node();
1077 next if $dxchan == $me;
1079 # send a pc50 out on this channel
1080 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1081 $dxchan->send(pc50(scalar DXChannel::get_all_users));
1082 $dxchan->pc50_t($t);
1085 # send a ping out on this channel
1086 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1087 if ($dxchan->{nopings} <= 0) {
1088 $dxchan->disconnect;
1090 addping($main::mycall, $dxchan->call);
1091 $dxchan->{nopings} -= 1;
1092 $dxchan->{lastping} = $t;
1100 if ($main::systime - 3600 > $last_hour) {
1104 $last_hour = $main::systime;
1109 # finish up a pc context
1114 my $call = $self->call;
1116 my $ref = DXCluster->get_exact($call);
1118 # unbusy and stop and outgoing mail
1119 my $mref = DXMsg::get_busy($call);
1120 $mref->stop_msg($call) if $mref;
1122 # broadcast to all other nodes that all the nodes connected to via me are gone
1123 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1126 foreach $node (@gonenodes) {
1127 next if $node->call eq $call;
1128 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1132 # remove outstanding pings
1133 delete $pings{$call};
1135 # now broadcast to all other ak1a nodes that I have gone
1136 broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1138 # I was the last node visited
1139 $self->user->node($main::mycall);
1141 # send info to all logged in thingies
1142 $self->tell_login('logoutn');
1144 Log('DXProt', $call . " Disconnected");
1145 $ref->del() if $ref;
1149 # some active measures
1155 my @dxchan = DXChannel->get_all();
1158 # send it if it isn't the except list and isn't isolated and still has a hop count
1159 # taking into account filtering and so on
1160 foreach $dxchan (@dxchan) {
1162 my ($filter, $hops);
1164 if ($dxchan->{spotsfilter}) {
1165 ($filter, $hops) = $dxchan->{spotsfilter}->it(@_, $self->{call} );
1166 next unless $filter;
1169 if ($dxchan->is_node) {
1170 next if $dxchan == $self;
1173 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1175 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1176 next unless $routeit;
1179 $dxchan->send($routeit) if $routeit;
1181 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1183 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1184 my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1185 $buf .= "\a\a" if $dxchan->{beep};
1187 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1188 $dxchan->send($buf);
1190 $dxchan->delay($buf);
1200 my @dxchan = DXChannel->get_all();
1203 # send it if it isn't the except list and isn't isolated and still has a hop count
1204 # taking into account filtering and so on
1205 foreach $dxchan (@dxchan) {
1207 my ($filter, $hops);
1209 if ($dxchan->{wwvfilter}) {
1210 ($filter, $hops) = $dxchan->{wwvfilter}->it(@_, $self->{call} );
1211 next unless $filter;
1213 if ($dxchan->is_node) {
1214 next if $dxchan == $self;
1217 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1219 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1220 next unless $routeit;
1223 $dxchan->send($routeit) if $routeit;
1225 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1228 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1229 my $buf = "WWV de $_[6] <$_[1]>: SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1230 $buf .= "\a\a" if $dxchan->{beep};
1231 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1232 $dxchan->send($buf);
1234 $dxchan->delay($buf);
1244 my @dxchan = DXChannel->get_all();
1247 # send it if it isn't the except list and isn't isolated and still has a hop count
1248 # taking into account filtering and so on
1249 foreach $dxchan (@dxchan) {
1251 my ($filter, $hops);
1253 if ($dxchan->{wcyfilter}) {
1254 ($filter, $hops) = $dxchan->{wcyfilter}->it(@_, $self->{call} );
1255 next unless $filter;
1257 if ($dxchan->is_clx || $dxchan->is_spider || $dxchan->is_dxnet) {
1258 next if $dxchan == $self;
1261 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1263 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1264 next unless $routeit;
1267 $dxchan->send($routeit) if $routeit;
1269 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1271 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1272 my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1273 $buf .= "\a\a" if $dxchan->{beep};
1274 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1275 $dxchan->send($buf);
1277 $dxchan->delay($buf);
1288 my @dxchan = DXChannel->get_all();
1290 my $text = unpad($_[2]);
1294 if ($_[3] eq '*') { # sysops
1296 } elsif ($_[3] gt ' ') { # speciality list handling
1297 my ($name) = split /\./, $_[3];
1298 $target = "$name"; # put the rest in later (if bothered)
1305 $target = "All" if !$target;
1307 Log('ann', $target, $_[0], $text);
1309 # send it if it isn't the except list and isn't isolated and still has a hop count
1310 # taking into account filtering and so on
1311 foreach $dxchan (@dxchan) {
1313 my ($filter, $hops);
1315 if ($dxchan->{annfilter}) {
1316 my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1317 my @dxcc = Prefix::extract($_[0]);
1319 $ann_dxcc = $dxcc[1]->dxcc;
1320 $ann_itu = $dxcc[1]->itu;
1321 $ann_cq = $dxcc[1]->cq;
1323 @dxcc = Prefix::extract($_[4]);
1325 $org_dxcc = $dxcc[1]->dxcc;
1326 $org_itu = $dxcc[1]->itu;
1327 $org_cq = $dxcc[1]->cq;
1329 ($filter, $hops) = $dxchan->{annfilter}->it(@_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1330 next unless $filter;
1332 if ($dxchan->is_node && $_[1] ne $main::mycall) { # i.e not specifically routed to me
1333 next if $dxchan == $self;
1336 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1338 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1339 next unless $routeit;
1342 $dxchan->send($routeit) if $routeit;
1344 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1347 } elsif ($dxchan->is_user) {
1348 unless ($dxchan->{ann}) {
1349 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1351 next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1352 my $buf = "$to$target de $_[0]: $text";
1354 $buf .= "\a\a" if $dxchan->{beep};
1355 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1356 $dxchan->send($buf);
1358 $dxchan->delay($buf);
1364 sub send_local_config
1373 if ($self->{isolate}) {
1374 @localnodes = (DXCluster->get_exact($main::mycall));
1376 # create a list of all the nodes that are not connected to this connection
1377 # and are not themselves isolated, this to make sure that isolated nodes
1378 # don't appear outside of this node
1379 @nodes = DXNode::get_all();
1380 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1381 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1382 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1383 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1384 unshift @localnodes, DXCluster->get_exact($main::mycall);
1385 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1388 my @s = $me->pc19(@localnodes, @remotenodes);
1390 my $routeit = adjust_hops($self, $_);
1391 $self->send($routeit) if $routeit;
1394 # get all the users connected on the above nodes and send them out
1395 foreach $n (@localnodes, @remotenodes) {
1396 my @users = values %{$n->list};
1397 my @s = pc16($n, @users);
1399 my $routeit = adjust_hops($self, $_);
1400 $self->send($routeit) if $routeit;
1406 # route a message down an appropriate interface for a callsign
1408 # is called route(to, pcline);
1412 my ($self, $call, $line) = @_;
1414 if (ref $self && $call eq $self->{call}) {
1415 dbg('chan', "Trying to route back to source, dropped");
1419 # always send it down the local interface if available
1420 my $dxchan = DXChannel->get($call);
1422 my $cl = DXCluster->get_exact($call);
1423 $dxchan = $cl->dxchan if $cl;
1426 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1428 $dxchan->send($routeit);
1433 # broadcast a message to all clusters taking into account isolation
1434 # [except those mentioned after buffer]
1437 my $s = shift; # the line to be rebroadcast
1438 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1439 my @dxchan = DXChannel::get_all_nodes();
1442 # send it if it isn't the except list and isn't isolated and still has a hop count
1443 foreach $dxchan (@dxchan) {
1444 next if grep $dxchan == $_, @except;
1445 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1446 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1450 # broadcast a message to all clusters ignoring isolation
1451 # [except those mentioned after buffer]
1452 sub broadcast_all_ak1a
1454 my $s = shift; # the line to be rebroadcast
1455 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1456 my @dxchan = DXChannel::get_all_nodes();
1459 # send it if it isn't the except list and isn't isolated and still has a hop count
1460 foreach $dxchan (@dxchan) {
1461 next if grep $dxchan == $_, @except;
1462 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1463 $dxchan->send($routeit);
1467 # broadcast to all users
1468 # storing the spot or whatever until it is in a state to receive it
1471 my $s = shift; # the line to be rebroadcast
1472 my $sort = shift; # the type of transmission
1473 my $fref = shift; # a reference to an object to filter on
1474 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1475 my @dxchan = DXChannel::get_all_users();
1479 foreach $dxchan (@dxchan) {
1480 next if grep $dxchan == $_, @except;
1483 broadcast_list($s, $sort, $fref, @out);
1486 # broadcast to a list of users
1494 foreach $dxchan (@_) {
1497 if ($sort eq 'dx') {
1498 next unless $dxchan->{dx};
1499 ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1500 next unless $filter;
1502 next if $sort eq 'ann' && !$dxchan->{ann};
1503 next if $sort eq 'wwv' && !$dxchan->{wwv};
1504 next if $sort eq 'wcy' && !$dxchan->{wcy};
1505 next if $sort eq 'wx' && !$dxchan->{wx};
1507 $s =~ s/\a//og unless $dxchan->{beep};
1509 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1519 # obtain the hops from the list for this callsign and pc no
1525 my $hops = $DXProt::hopcount{$pcno};
1526 $hops = $DXProt::def_hopcount if !$hops;
1531 # adjust the hop count on a per node basis using the user loadable
1532 # hop table if available or else decrement an existing one
1539 my $call = $self->{call};
1542 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1543 my ($pcno) = $s =~ /^PC(\d\d)/o;
1544 confess "$call called adjust_hops with '$s'" unless $pcno;
1545 my $ref = $nodehops{$call} if %nodehops;
1547 my $newhops = $ref->{$pcno};
1548 return "" if defined $newhops && $newhops == 0;
1549 $newhops = $ref->{default} unless $newhops;
1550 return "" if defined $newhops && $newhops == 0;
1551 $newhops = $hops if !$newhops;
1552 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1554 # simply decrement it
1556 return "" if !$hops;
1557 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1569 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1570 do "$main::data/hop_table.pl";
1576 # add a ping request to the ping queues
1579 my ($from, $to) = @_;
1580 my $ref = $pings{$to} || [];
1583 $r->{t} = [ gettimeofday ];
1584 route(undef, $to, pc51($to, $main::mycall, 1));
1589 # add a rcmd request to the rcmd queues
1592 my ($self, $to, $cmd) = @_;
1595 $r->{call} = $self->{call};
1596 $r->{t} = $main::systime;
1600 my $ref = DXCluster->get_exact($to);
1601 if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1602 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1604 route(undef, $to, pc34($main::mycall, $to, $cmd));
1613 if ($self->{conn} && !$nopc39) {
1614 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1617 $self->SUPER::disconnect;
1622 # send a talk message to this thingy
1626 my ($self, $from, $to, $via, $line) = @_;
1628 $line =~ s/\^/\\5E/g; # remove any ^ characters
1629 $self->send(DXProt::pc10($from, $to, $via, $line));
1630 Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);