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 c 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 INPUT filters (these only pertain to Clusters)
215 $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
216 $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
217 $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
218 $self->{inannfilter} = Filter::read_in('ann', $call, 1);
220 # set unbuffered and no echo
221 $self->send_now('B',"0");
222 $self->send_now('E',"0");
224 # ping neighbour node stuff
225 my $ping = $user->pingint;
226 $ping = 5*60 unless defined $ping;
227 $self->{pingint} = $ping;
228 $self->{nopings} = $user->nopings || 2;
229 $self->{pingtime} = [ ];
230 $self->{pingave} = 0;
232 # send initialisation string
233 unless ($self->{outbound}) {
234 # $self->send(pc38()) if DXNode->get_all();
236 $self->{lastping} = $main::systime;
238 # remove from outstanding connects queue
239 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
240 $self->{lastping} = $main::systime + $self->pingint / 2;
242 $self->state('init');
245 # send info to all logged in thingies
246 $self->tell_login('loginn');
248 Log('DXProt', "$call connected");
252 # This is the normal pcxx despatcher
256 my ($self, $line) = @_;
257 my @field = split /\^/, $line;
258 return unless @field;
260 pop @field if $field[-1] eq '~';
262 # print join(',', @field), "\n";
264 # ignore any lines that don't start with PC
265 return if !$field[0] =~ /^PC/;
268 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
270 return if $pcno < 10 || $pcno > 99;
272 # check for and dump bad protocol messages
273 my $n = check($pcno, @field);
275 dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
282 $pcr = Local::pcprot($self, $pcno, @field);
284 # dbg('local', "Local::pcprot error $@") if $@;
288 if ($pcno == 10) { # incoming talk
290 # will we allow it at all?
293 if (@bad = BadWords::check($field[3])) {
294 dbg('chan', "Bad words: @bad, dropped" );
299 # is it for me or one of mine?
300 my ($to, $via, $call, $dxchan);
301 if ($field[5] gt ' ') {
302 $call = $via = $field[2];
305 $call = $to = $field[2];
307 $dxchan = DXChannel->get($call);
308 if ($dxchan && $dxchan->is_user) {
309 $field[3] =~ s/\%5E/^/g;
310 $dxchan->talk($field[1], $to, $via, $field[3]);
312 $self->route($field[2], $line); # relay it on its way
317 if ($pcno == 11 || $pcno == 26) { # dx spot
319 # route 'foreign' pc26s
321 if ($field[7] ne $main::mycall) {
322 $self->route($field[7], $line);
327 # if this is a 'nodx' node then ignore it
328 if (grep $field[7] =~ /^$_/, @DXProt::nodx_node) {
329 dbg('chan', "Bad DXNode, dropped");
333 # convert the date to a unix date
334 my $d = cltounix($field[3], $field[4]);
335 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
336 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
337 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
342 if (grep $field[2] eq $_, @baddx) {
343 dbg('chan', "Bad DX spot, ignored");
348 $field[5] =~ s/^\s+//; # take any leading blanks off
349 if (Spot::dup($field[1], $field[2], $d, $field[5])) {
350 dbg('chan', "Duplicate Spot ignored\n");
355 if (@bad = BadWords::check($field[5])) {
356 dbg('chan', "Bad words: @bad, dropped" );
361 my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
364 # @spot at this point contains:-
365 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
366 # then spotted itu, spotted cq, spotters itu, spotters cq
367 # you should be able to route on any of these
370 # fix up qra locators of known users
371 my $user = DXUser->get_current($spot[4]);
373 my $qra = $user->qra;
374 unless ($qra && DXBearing::is_qra($qra)) {
375 my $lat = $user->lat;
376 my $long = $user->long;
377 if (defined $lat && defined $long) {
378 $user->qra(DXBearing::lltoqra($lat, $long));
383 # send a remote command to a distant cluster if it is visible and there is no
384 # qra locator and we havn't done it for a month.
386 unless ($user->qra) {
388 my $to = $user->homenode;
389 my $last = $user->lastoper || 0;
390 if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
391 my $cmd = "forward/opernam $spot[4]";
392 # send the rcmd but we aren't interested in the replies...
393 if ($node && $node->dxchan && $node->dxchan->is_clx) {
394 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
396 route(undef, $to, pc34($main::mycall, $to, $cmd));
398 if ($to ne $field[7]) {
400 $node = DXCluster->get_exact($to);
401 if ($node && $node->dxchan && $node->dxchan->is_clx) {
402 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
404 route(undef, $to, pc34($main::mycall, $to, $cmd));
407 $user->lastoper($main::systime);
416 $r = Local::spot($self, @spot);
418 # dbg('local', "Local::spot1 error $@") if $@;
421 # DON'T be silly and send on PC26s!
422 return if $pcno == 26;
424 # send out the filtered spots
425 send_dx_spot($self, $line, @spot) if @spot;
429 if ($pcno == 12) { # announces
430 # announce duplicate checking
431 $field[3] =~ s/^\s+//; # remove leading blanks
432 if (AnnTalk::dup($field[1], $field[2], $field[3])) {
433 dbg('chan', "Duplicate Announce ignored");
439 if (@bad = BadWords::check($field[3])) {
440 dbg('chan', "Bad words: @bad, dropped" );
445 if ($field[2] eq '*' || $field[2] eq $main::mycall) {
447 # global ann filtering on INPUT
448 if ($self->{inannfilter}) {
449 my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
451 dbg('chan', "Rejected by filter");
457 $self->send_announce($line, @field[1..6]);
459 $self->route($field[2], $line);
475 if ($pcno == 16) { # add a user
476 my $node = DXCluster->get_exact($field[1]);
478 if (!$node && ($dxchan = DXChannel->get($field[1]))) {
479 # add it to the node table if it isn't present and it's
481 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
482 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
485 return unless $node; # ignore if havn't seen a PC19 for this one yet
486 return unless $node->isa('DXNode');
487 if ($node->dxchan != $self) {
488 dbg('chan', "LOOP: $field[1] came in on wrong channel");
491 if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
492 dbg('chan', "LOOP: $field[1] connected locally");
497 for ($i = 2; $i < $#field; $i++) {
498 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
499 next if !$call || length $call < 3 || length $call > 8;
502 next if DXCluster->get_exact($call); # we already have this (loop?)
504 $confmode = $confmode eq '*';
505 DXNodeuser->new($self, $node, $call, $confmode, $here);
507 # add this station to the user database, if required
508 $call =~ s/-\d+$//o; # remove ssid for users
509 my $user = DXUser->get_current($call);
510 $user = DXUser->new($call) if !$user;
511 $user->homenode($node->call) if !$user->homenode;
512 $user->node($node->call);
513 $user->lastin($main::systime) unless DXChannel->get($call);
517 # queue up any messages (look for privates only)
518 DXMsg::queue_msg(1) if $self->state eq 'normal';
522 if ($pcno == 17) { # remove a user
523 my $node = DXCluster->get_exact($field[2]);
525 if (!$node && ($dxchan = DXChannel->get($field[2]))) {
526 # add it to the node table if it isn't present and it's
528 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
529 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
533 return unless $node->isa('DXNode');
534 if ($node->dxchan != $self) {
535 dbg('chan', "LOOP: $field[2] came in on wrong channel");
538 if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
539 dbg('chan', "LOOP: $field[2] connected locally");
542 my $ref = DXCluster->get_exact($field[1]);
547 if ($pcno == 18) { # link request
548 $self->state('init');
550 # first clear out any nodes on this dxchannel
551 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
552 foreach my $node (@gonenodes) {
553 next if $node->dxchan == $DXProt::me;
554 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
557 $self->send_local_config();
559 return; # we don't pass these on
562 if ($pcno == 19) { # incoming cluster list
564 my $newline = "PC19^";
565 for ($i = 1; $i < $#field-1; $i += 4) {
566 my $here = $field[$i];
567 my $call = uc $field[$i+1];
568 my $confmode = $field[$i+2];
569 my $ver = $field[$i+3];
571 $ver = 5400 if !$ver && $allowzero;
573 # now check the call over
574 my $node = DXCluster->get_exact($call);
577 if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
578 dbg('chan', "LOOP: $call connected locally");
580 if ($node->dxchan != $self) {
581 dbg('chan', "LOOP: $call come in on wrong channel");
584 dbg('chan', "already have $call");
588 # check for sane parameters
589 next if $ver < 5000; # only works with version 5 software
590 next if length $call < 3; # min 3 letter callsigns
592 # add it to the nodes table and outgoing line
593 $newline .= "$here^$call^$confmode^$ver^";
594 DXNode->new($self, $call, $confmode, $here, $ver);
596 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
597 my $mref = DXMsg::get_busy($call);
598 $mref->stop_msg($call) if $mref;
600 # add this station to the user database, if required (don't remove SSID from nodes)
601 my $user = DXUser->get_current($call);
603 $user = DXUser->new($call);
605 $user->priv(1); # I have relented and defaulted nodes
606 $self->{priv} = 1; # to user RCMDs allowed
607 $user->homenode($call);
610 $user->lastin($main::systime) unless DXChannel->get($call);
614 return if $newline eq "PC19^";
617 $newline .= get_hops(19) . "^";
622 if ($pcno == 20) { # send local configuration
623 $self->send_local_config();
625 $self->state('normal');
629 if ($pcno == 21) { # delete a cluster from the list
630 my $call = uc $field[1];
631 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
632 my $node = DXCluster->get_exact($call);
634 if ($call eq $self->{call}) {
635 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
638 if ($node->dxchan != $self) {
639 dbg('chan', "LOOP: $call come in on wrong channel");
643 if ($dxchan = DXChannel->get($call)) {
644 dbg('chan', "LOOP: $call connected locally");
649 dbg('chan', "$call not in table, dropped");
657 $self->state('normal');
661 if ($pcno == 23 || $pcno == 27) { # WWV info
663 # route 'foreign' pc27s
665 if ($field[8] ne $main::mycall) {
666 $self->route($field[8], $line);
672 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
673 my $sfi = unpad($field[3]);
674 my $k = unpad($field[4]);
675 my $i = unpad($field[5]);
676 my ($r) = $field[6] =~ /R=(\d+)/;
678 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
679 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
682 if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
683 dbg('chan', "Dup WWV Spot ignored\n");
686 $field[7] =~ s/-\d+$//o; # remove spotter's ssid
688 my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
692 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
694 # dbg('local', "Local::wwv2 error $@") if $@;
697 # DON'T be silly and send on PC27s!
698 return if $pcno == 27;
700 # broadcast to the eager world
701 send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
705 if ($pcno == 24) { # set here status
706 my $call = uc $field[1];
707 my $ref = DXCluster->get_exact($call);
708 $ref->here($field[2]) if $ref;
712 if ($pcno == 25) { # merge request
713 if ($field[1] ne $main::mycall) {
714 $self->route($field[1], $line);
717 if ($field[2] eq $main::mycall) {
718 dbg('chan', "Trying to merge to myself, ignored");
722 Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
726 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
729 $self->send(pc26(@{$in}[0..4], $field[2]));
735 my @in = reverse Geomag::search(0, $field[4], time, 1);
738 $self->send(pc27(@{$in}[0..5], $field[2]));
744 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
745 if ($pcno == 49 || $field[1] eq $main::mycall) {
746 DXMsg::process($self, $line);
748 $self->route($field[1], $line) unless $self->is_clx;
753 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
754 if ($field[1] eq $main::mycall) {
755 my $ref = DXUser->get_current($field[2]);
756 my $cref = DXCluster->get($field[2]);
757 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
758 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
759 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
760 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
761 my $oldpriv = $self->{priv};
762 $self->{priv} = $ref->{priv}; # assume the user's privilege level
763 my @in = (DXCommandmode::run_cmd($self, $field[3]));
764 $self->{priv} = $oldpriv;
767 $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
768 Log('rcmd', 'out', $field[2], $_);
770 delete $self->{remotecmd};
772 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
775 $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
778 my $ref = DXUser->get_current($field[1]);
779 if ($ref && $ref->is_clx) {
780 route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
782 $self->route($field[1], $line);
788 if ($pcno == 35) { # remote command replies
789 if ($field[1] eq $main::mycall) {
790 my $s = $rcmds{$field[2]};
792 my $dxchan = DXChannel->get($s->{call});
793 $dxchan->send($field[3]) if $dxchan;
794 delete $rcmds{$field[2]} if !$dxchan;
796 # send unsolicited ones to the sysop
797 my $dxchan = DXChannel->get($main::myalias);
798 $dxchan->send($field[3]) if $dxchan;
801 my $ref = DXUser->get_current($field[1]);
802 if ($ref && $ref->is_clx) {
803 route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
805 $self->route($field[1], $line);
811 # for pc 37 see 44 onwards
813 if ($pcno == 38) { # node connected list from neighbour
817 if ($pcno == 39) { # incoming disconnect
818 $self->disconnect(1);
822 if ($pcno == 41) { # user info
823 # add this station to the user database, if required
824 my $user = DXUser->get_current($field[1]);
826 # then try without an SSID
827 $field[1] =~ s/-\d+$//o;
828 $user = DXUser->get_current($field[1]);
830 $user = DXUser->new($field[1]) if !$user;
832 if ($field[2] == 1) {
833 $user->name($field[3]);
834 } elsif ($field[2] == 2) {
835 $user->qth($field[3]);
836 } elsif ($field[2] == 3) {
837 my ($lat, $long) = DXBearing::stoll($field[3]);
840 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
841 } elsif ($field[2] == 4) {
842 $user->homenode($field[3]);
844 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
851 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
852 DXDb::process($self, $line);
856 if ($pcno == 50) { # keep alive/user list
857 my $node = DXCluster->get_exact($field[1]);
859 return unless $node->isa('DXNode');
860 return unless $node->dxchan == $self;
861 $node->update_users($field[2]);
866 if ($pcno == 51) { # incoming ping requests/answers
869 if ($field[1] eq $main::mycall) {
870 my $flag = $field[3];
872 $self->send(pc51($field[2], $field[1], '0'));
874 # it's a reply, look in the ping list for this one
875 my $ref = $pings{$field[2]};
877 my $tochan = DXChannel->get($field[2]);
880 my $dxchan = DXChannel->get($r->{call});
882 my $t = tv_interval($r->{t}, [ gettimeofday ]);
883 if ($dxchan->is_user) {
884 my $s = sprintf "%.2f", $t;
885 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
886 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
887 } elsif ($dxchan->is_node) {
889 $tochan->{nopings} = 2; # pump up the timer
890 push @{$tochan->{pingtime}}, $t;
891 shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
893 for (@{$tochan->{pingtime}}) {
896 $tochan->{pingave} = $st / @{$tochan->{pingtime}};
903 # route down an appropriate thingy
904 $self->route($field[1], $line);
909 if ($pcno == 75) { # dunno but route it
910 if ($field[1] ne $main::mycall) {
911 $self->route($field[1], $line);
916 if ($pcno == 73) { # WCY broadcasts
919 my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
920 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
921 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
924 @field = map { unpad($_) } @field;
925 if (WCY::dup($d,@field[3..7])) {
926 dbg('chan', "Dup WCY Spot ignored\n");
930 my $wcy = WCY::update($d, @field[2..12]);
934 $rep = Local::wwv($self, @field[1..12]);
936 # dbg('local', "Local::wcy error $@") if $@;
939 # broadcast to the eager world
940 send_wcy_spot($self, $line, $d, @field[2..12]);
944 if ($pcno == 84) { # remote commands (incoming)
945 if ($field[1] eq $main::mycall) {
946 my $ref = DXUser->get_current($field[2]);
947 my $cref = DXCluster->get($field[2]);
948 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
949 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
950 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
951 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
952 my $oldpriv = $self->{priv};
953 $self->{priv} = $ref->{priv}; # assume the user's privilege level
954 my @in = (DXCommandmode::run_cmd($self, $field[4]));
955 $self->{priv} = $oldpriv;
958 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
959 Log('rcmd', 'out', $field[2], $_);
961 delete $self->{remotecmd};
963 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
966 $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
969 my $ref = DXUser->get_current($field[1]);
970 if ($ref && $ref->is_clx) {
971 $self->route($field[1], $line);
973 route($field[1], pc34($field[2], $field[1], $field[4]));
979 if ($pcno == 85) { # remote command replies
980 if ($field[1] eq $main::mycall) {
981 my $dxchan = DXChannel->get($field[3]);
983 $dxchan->send($field[4]);
985 my $s = $rcmds{$field[2]};
987 $dxchan = DXChannel->get($s->{call});
988 $dxchan->send($field[4]) if $dxchan;
989 delete $rcmds{$field[2]} if !$dxchan;
991 # send unsolicited ones to the sysop
992 my $dxchan = DXChannel->get($main::myalias);
993 $dxchan->send($field[4]) if $dxchan;
997 my $ref = DXUser->get_current($field[1]);
998 if ($ref && $ref->is_clx) {
999 $self->route($field[1], $line);
1001 route($field[1], pc35($field[2], $field[1], $field[4]));
1008 # if get here then rebroadcast the thing with its Hop count decremented (if
1009 # there is one). If it has a hop count and it decrements to zero then don't
1012 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1016 unless ($self->{isolate}) {
1017 broadcast_ak1a($line, $self); # send it to everyone but me
1022 # This is called from inside the main cluster processing loop and is used
1023 # for despatching commands that are doing some long processing job
1028 my @dxchan = DXChannel->get_all();
1031 foreach $dxchan (@dxchan) {
1032 next unless $dxchan->is_node();
1033 next if $dxchan == $me;
1035 # send a pc50 out on this channel
1036 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1037 $dxchan->send(pc50(scalar DXChannel::get_all_users));
1038 $dxchan->pc50_t($t);
1041 # send a ping out on this channel
1042 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1043 if ($dxchan->{nopings} <= 0) {
1044 $dxchan->disconnect;
1046 addping($main::mycall, $dxchan->call);
1047 $dxchan->{nopings} -= 1;
1048 $dxchan->{lastping} = $t;
1056 if ($main::systime - 3600 > $last_hour) {
1060 $last_hour = $main::systime;
1065 # finish up a pc context
1070 my $call = $self->call;
1072 my $ref = DXCluster->get_exact($call);
1074 # unbusy and stop and outgoing mail
1075 my $mref = DXMsg::get_busy($call);
1076 $mref->stop_msg($call) if $mref;
1078 # broadcast to all other nodes that all the nodes connected to via me are gone
1079 my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1082 foreach $node (@gonenodes) {
1083 next if $node->call eq $call;
1084 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1088 # remove outstanding pings
1089 delete $pings{$call};
1091 # now broadcast to all other ak1a nodes that I have gone
1092 broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1094 # I was the last node visited
1095 $self->user->node($main::mycall);
1097 # send info to all logged in thingies
1098 $self->tell_login('logoutn');
1100 Log('DXProt', $call . " Disconnected");
1101 $ref->del() if $ref;
1105 # some active measures
1111 my @dxchan = DXChannel->get_all();
1114 # send it if it isn't the except list and isn't isolated and still has a hop count
1115 # taking into account filtering and so on
1116 foreach $dxchan (@dxchan) {
1118 my ($filter, $hops);
1120 if ($dxchan->{spotfilter}) {
1121 ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
1122 next unless $filter;
1125 if ($dxchan->is_node) {
1126 next if $dxchan == $self;
1129 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1131 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1132 next unless $routeit;
1135 $dxchan->send($routeit) if $routeit;
1137 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1139 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1140 my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1141 $buf .= "\a\a" if $dxchan->{beep};
1143 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1144 $dxchan->send($buf);
1146 $dxchan->delay($buf);
1156 my @dxchan = DXChannel->get_all();
1159 # send it if it isn't the except list and isn't isolated and still has a hop count
1160 # taking into account filtering and so on
1161 foreach $dxchan (@dxchan) {
1163 my ($filter, $hops);
1165 if ($dxchan->{wwvfilter}) {
1166 ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1167 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} || $self->{isolate};
1184 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1185 my $buf = "WWV de $_[6] <$_[1]>: SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1186 $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->{wcyfilter}) {
1210 ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1211 next unless $filter;
1213 if ($dxchan->is_clx || $dxchan->is_spider) {
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} || $self->{isolate};
1227 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1228 my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1229 $buf .= "\a\a" if $dxchan->{beep};
1230 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1231 $dxchan->send($buf);
1233 $dxchan->delay($buf);
1244 my @dxchan = DXChannel->get_all();
1246 my $text = unpad($_[2]);
1250 if ($_[3] eq '*') { # sysops
1252 } elsif ($_[3] gt ' ') { # speciality list handling
1253 my ($name) = split /\./, $_[3];
1254 $target = "$name"; # put the rest in later (if bothered)
1261 $target = "All" if !$target;
1263 Log('ann', $target, $_[0], $text);
1265 # send it if it isn't the except list and isn't isolated and still has a hop count
1266 # taking into account filtering and so on
1267 foreach $dxchan (@dxchan) {
1269 my ($filter, $hops);
1271 if ($dxchan->{annfilter}) {
1272 ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1273 next unless $filter;
1275 if ($dxchan->is_node && $_[1] ne $main::mycall) { # i.e not specifically routed to me
1276 next if $dxchan == $self;
1279 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1281 $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1282 next unless $routeit;
1285 $dxchan->send($routeit) if $routeit;
1287 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1290 } elsif ($dxchan->is_user) {
1291 unless ($dxchan->{ann}) {
1292 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1294 next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1295 my $buf = "$to$target de $_[0]: $text";
1297 $buf .= "\a\a" if $dxchan->{beep};
1298 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1299 $dxchan->send($buf);
1301 $dxchan->delay($buf);
1307 sub send_local_config
1316 if ($self->{isolate}) {
1317 @localnodes = (DXCluster->get_exact($main::mycall));
1319 # create a list of all the nodes that are not connected to this connection
1320 # and are not themselves isolated, this to make sure that isolated nodes
1321 # don't appear outside of this node
1322 @nodes = DXNode::get_all();
1323 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1324 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1325 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1326 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1327 unshift @localnodes, DXCluster->get_exact($main::mycall);
1328 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1331 my @s = $me->pc19(@localnodes, @remotenodes);
1333 my $routeit = adjust_hops($self, $_);
1334 $self->send($routeit) if $routeit;
1337 # get all the users connected on the above nodes and send them out
1338 foreach $n (@localnodes, @remotenodes) {
1339 my @users = values %{$n->list};
1340 my @s = pc16($n, @users);
1342 my $routeit = adjust_hops($self, $_);
1343 $self->send($routeit) if $routeit;
1349 # route a message down an appropriate interface for a callsign
1351 # is called route(to, pcline);
1355 my ($self, $call, $line) = @_;
1357 if (ref $self && $call eq $self->{call}) {
1358 dbg('chan', "Trying to route back to source, dropped");
1362 # always send it down the local interface if available
1363 my $dxchan = DXChannel->get($call);
1365 my $cl = DXCluster->get_exact($call);
1366 $dxchan = $cl->dxchan if $cl;
1369 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
1371 $dxchan->send($routeit);
1376 # broadcast a message to all clusters taking into account isolation
1377 # [except those mentioned after buffer]
1380 my $s = shift; # the line to be rebroadcast
1381 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1382 my @dxchan = DXChannel::get_all_nodes();
1385 # send it if it isn't the except list and isn't isolated and still has a hop count
1386 foreach $dxchan (@dxchan) {
1387 next if grep $dxchan == $_, @except;
1388 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1389 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1393 # broadcast a message to all clusters ignoring isolation
1394 # [except those mentioned after buffer]
1395 sub broadcast_all_ak1a
1397 my $s = shift; # the line to be rebroadcast
1398 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1399 my @dxchan = DXChannel::get_all_nodes();
1402 # send it if it isn't the except list and isn't isolated and still has a hop count
1403 foreach $dxchan (@dxchan) {
1404 next if grep $dxchan == $_, @except;
1405 my $routeit = adjust_hops($dxchan, $s); # adjust its hop count by node name
1406 $dxchan->send($routeit);
1410 # broadcast to all users
1411 # storing the spot or whatever until it is in a state to receive it
1414 my $s = shift; # the line to be rebroadcast
1415 my $sort = shift; # the type of transmission
1416 my $fref = shift; # a reference to an object to filter on
1417 my @except = @_; # to all channels EXCEPT these (dxchannel refs)
1418 my @dxchan = DXChannel::get_all_users();
1422 foreach $dxchan (@dxchan) {
1423 next if grep $dxchan == $_, @except;
1426 broadcast_list($s, $sort, $fref, @out);
1429 # broadcast to a list of users
1437 foreach $dxchan (@_) {
1440 if ($sort eq 'dx') {
1441 next unless $dxchan->{dx};
1442 ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1443 next unless $filter;
1445 next if $sort eq 'ann' && !$dxchan->{ann};
1446 next if $sort eq 'wwv' && !$dxchan->{wwv};
1447 next if $sort eq 'wcy' && !$dxchan->{wcy};
1448 next if $sort eq 'wx' && !$dxchan->{wx};
1450 $s =~ s/\a//og unless $dxchan->{beep};
1452 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1462 # obtain the hops from the list for this callsign and pc no
1468 my $hops = $DXProt::hopcount{$pcno};
1469 $hops = $DXProt::def_hopcount if !$hops;
1474 # adjust the hop count on a per node basis using the user loadable
1475 # hop table if available or else decrement an existing one
1482 my $call = $self->{call};
1485 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1486 my ($pcno) = $s =~ /^PC(\d\d)/o;
1487 confess "$call called adjust_hops with '$s'" unless $pcno;
1488 my $ref = $nodehops{$call} if %nodehops;
1490 my $newhops = $ref->{$pcno};
1491 return "" if defined $newhops && $newhops == 0;
1492 $newhops = $ref->{default} unless $newhops;
1493 return "" if defined $newhops && $newhops == 0;
1494 $newhops = $hops if !$newhops;
1495 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1497 # simply decrement it
1499 return "" if !$hops;
1500 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1512 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1513 do "$main::data/hop_table.pl";
1519 # add a ping request to the ping queues
1522 my ($from, $to) = @_;
1523 my $ref = $pings{$to} || [];
1526 $r->{t} = [ gettimeofday ];
1527 route(undef, $to, pc51($to, $main::mycall, 1));
1532 # add a rcmd request to the rcmd queues
1535 my ($self, $to, $cmd) = @_;
1538 $r->{call} = $self->{call};
1539 $r->{t} = $main::systime;
1543 my $ref = DXCluster->get_exact($to);
1544 if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1545 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1547 route(undef, $to, pc34($main::mycall, $to, $cmd));
1556 if ($self->{conn} && !$nopc39) {
1557 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1560 $self->SUPER::disconnect;
1565 # send a talk message to this thingy
1569 my ($self, $from, $to, $via, $line) = @_;
1571 $line =~ s/\^/\\5E/g; # remove any ^ characters
1572 $self->send(DXProt::pc10($from, $to, $via, $line));
1573 Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);