3 # This module impliments the protocal mode for a dx cluster
5 # Copyright (c) 1998 Dirk Koopman G1TLH
30 use Time::HiRes qw(gettimeofday tv_interval);
46 use vars qw($VERSION $BRANCH);
47 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
48 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /^\d+\.\d+(?:\.(\d+)\.(\d+))?$/ || (0,0));
49 $main::build += $VERSION;
50 $main::branch += $BRANCH;
52 use vars qw($pc11_max_age $pc23_max_age $last_pc50 $eph_restime $eph_info_restime $eph_pc34_restime
53 $last_hour $last10 %eph %pings %rcmds $ann_to_talk
54 $pingint $obscount %pc19list $chatdupeage $chatimportfn
55 $investigation_int $pc19_version $myprot_version
56 %nodehops $baddx $badspotter $badnode $censorpc $rspfcheck
57 $allowzero $decode_dk0wcy $send_opernam @checklist);
59 $pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
60 $pc23_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc23
62 $last_hour = time; # last time I did an hourly periodic update
63 %pings = (); # outstanding ping requests outbound
64 %rcmds = (); # outstanding rcmd requests outbound
65 %nodehops = (); # node specific hop control
66 %pc19list = (); # list of outstanding PC19s that haven't had PC16s on them
68 $censorpc = 1; # Do a BadWords::check on text fields and reject things
69 # loads of 'bad things'
70 $baddx = new DXHash "baddx";
71 $badspotter = new DXHash "badspotter";
72 $badnode = new DXHash "badnode";
73 $last10 = $last_pc50 = time;
77 $eph_info_restime = 60*60;
78 $eph_pc34_restime = 30;
81 $chatdupeage = 20 * 60 * 60;
82 $chatimportfn = "$main::root/chat_import";
83 $investigation_int = 12*60*60; # time between checks to see if we can see this node
84 $pc19_version = 5466; # the visible version no for outgoing PC19s generated from pc59
88 [ qw(i c c m bp bc c) ], # pc10
89 [ qw(i f m d t m c c h) ], # pc11
90 [ qw(i c bm m bm bm p h) ], # pc12
94 undef , # pc16 has to be validated manually
95 [ qw(i c c h) ], # pc17
97 undef , # pc19 has to be validated manually
98 undef , # pc20 no validation
99 [ qw(i c m h) ], # pc21
100 undef , # pc22 no validation
101 [ qw(i d n n n n m c c h) ], # pc23
102 [ qw(i c p h) ], # pc24
103 [ qw(i c c n n) ], # pc25
104 [ qw(i f m d t m c c bc) ], # pc26
105 [ qw(i d n n n n m c c bc) ], # pc27
106 [ qw(i c c m c d t p m bp n p bp bc) ], # pc28
107 [ qw(i c c n m) ], # pc29
108 [ qw(i c c n) ], # pc30
109 [ qw(i c c n) ], # pc31
110 [ qw(i c c n) ], # pc32
111 [ qw(i c c n) ], # pc33
112 [ qw(i c c m) ], # pc34
113 [ qw(i c c m) ], # pc35
114 [ qw(i c c m) ], # pc36
115 [ qw(i c c n m) ], # pc37
116 undef, # pc38 not interested
117 [ qw(i c m) ], # pc39
118 [ qw(i c c m p n) ], # pc40
119 [ qw(i c n m h) ], # pc41
120 [ qw(i c c n) ], # pc42
121 undef, # pc43 don't handle it
122 [ qw(i c c n m m c) ], # pc44
123 [ qw(i c c n m) ], # pc45
124 [ qw(i c c n) ], # pc46
127 [ qw(i c m h) ], # pc49
128 [ qw(i c n h) ], # pc50
129 [ qw(i c c n) ], # pc51
151 [ qw(i d n n n n n n m m m c c h) ], # pc73
162 [ qw(i c c c m) ], # pc84
163 [ qw(i c c c m) ], # pc85
168 [ qw(i c n) ], # pc90
171 # use the entry in the check list to check the field list presented
172 # return OK if line NOT in check list (for now)
177 return 0 if $n < 0 || $n > @checklist;
178 my $ref = $checklist[$n];
179 return 0 unless ref $ref;
182 for ($i = 1; $i < @$ref; $i++) {
183 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
184 return 0 unless $act;
185 next if $blank && $_[$i] =~ /^[ \*]$/;
187 return $i unless is_callsign($_[$i]);
188 } elsif ($act eq 'i') {
190 } elsif ($act eq 'm') {
191 return $i unless is_pctext($_[$i]);
192 } elsif ($act eq 'p') {
193 return $i unless is_pcflag($_[$i]);
194 } elsif ($act eq 'f') {
195 return $i unless is_freq($_[$i]);
196 } elsif ($act eq 'n') {
197 return $i unless $_[$i] =~ /^[\d ]+$/;
198 } elsif ($act eq 'h') {
199 return $i unless $_[$i] =~ /^H\d\d?$/;
200 } elsif ($act eq 'd') {
201 return $i unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
202 } elsif ($act eq 't') {
203 return $i unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
211 do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
214 my $user = DXUser->get($main::mycall);
215 die "User $main::mycall not setup or disappeared RTFM" unless $user;
217 $myprot_version += $main::version*100;
218 $main::me = DXProt->new($main::mycall, 0, $user);
219 $main::me->{here} = 1;
220 $main::me->{state} = "indifferent";
221 $main::me->{sort} = 'S'; # S for spider
222 $main::me->{priv} = 9;
223 $main::me->{metric} = 0;
224 $main::me->{pingave} = 0;
225 $main::me->{registered} = 1;
226 $main::me->{version} = 5251 + $main::version;
227 $main::me->{build} = $main::build;
231 # obtain a new connection this is derived from dxchannel
236 my $self = DXChannel::alloc(@_);
238 # add this node to the table, the values get filled in later
241 $main::routeroot->add($call, '5000', Route::here(1)) if $call ne $main::mycall;
246 # this is how a pc connection starts (for an incoming connection)
247 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
248 # all the crap that comes between).
251 my ($self, $line, $sort) = @_;
252 my $call = $self->{call};
253 my $user = $self->{user};
256 my $host = $self->{conn}->{peerhost} || "unknown";
257 Log('DXProt', "$call connected from $host");
259 # remember type of connection
260 $self->{consort} = $line;
261 $self->{outbound} = $sort eq 'O';
262 my $priv = $user->priv;
263 $priv = $user->priv(1) unless $priv;
264 $self->{priv} = $priv; # other clusters can always be 'normal' users
265 $self->{lang} = $user->lang || 'en';
266 $self->{isolate} = $user->{isolate};
267 $self->{consort} = $line; # save the connection type
271 # sort out registration
272 $self->{registered} = 1;
274 # get the output filters
275 $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
276 $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
277 $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
278 $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
279 $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
282 # get the INPUT filters (these only pertain to Clusters)
283 $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
284 $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
285 $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
286 $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
287 $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
289 # set unbuffered and no echo
290 $self->send_now('B',"0");
291 $self->send_now('E',"0");
292 $self->conn->echo(0) if $self->conn->can('echo');
294 # ping neighbour node stuff
295 my $ping = $user->pingint;
296 $ping = $pingint unless defined $ping;
297 $self->{pingint} = $ping;
298 $self->{nopings} = $user->nopings || $obscount;
299 $self->{pingtime} = [ ];
300 $self->{pingave} = 999;
301 $self->{metric} ||= 100;
302 $self->{lastping} = $main::systime;
304 # send initialisation string
305 unless ($self->{outbound}) {
309 $self->state('init');
310 $self->{pc50_t} = $main::systime;
312 # send info to all logged in thingies
313 $self->tell_login('loginn');
315 # run a script send the output to the debug file
316 my $script = new Script(lc $call) || new Script('node_default');
317 $script->run($self) if $script;
321 # send outgoing 'challenge'
332 # This is the normal pcxx despatcher
336 my ($self, $line) = @_;
338 my @field = split /\^/, $line;
339 return unless @field;
341 pop @field if $field[-1] eq '~';
343 # print join(',', @field), "\n";
345 # process PC frames, this will fail unless the frame starts PCnn
346 my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
347 unless (defined $pcno && $pcno >= 10 && $pcno <= 99) {
348 dbg("PCPROT: unknown protocol") if isdbg('chanerr');
352 # check for and dump bad protocol messages
353 my $n = check($pcno, @field);
355 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
359 # decrement any hop fields at this point
360 if ($line =~ /\^H(\d\d?)\^?~?$/) {
363 dbg("PCPROT: zero hop count, dumped") if isdbg('chanerr');
366 $line =~ s/\^H\d\d?(\^?~?)$/^H$hops$1/;
369 my $origin = $self->{call};
371 my $sub = "handle_$pcno";
373 if ($self->can($sub)) {
374 $self->$sub($pcno, $line, $origin, @field);
376 $self->handle_default($pcno, $line, $origin, @field);
380 # incoming talk commands
389 return if $rspfcheck and !$self->rspfcheck(0, $_[6], $_[1]);
391 # will we allow it at all?
394 if (@bad = BadWords::check($_[3])) {
395 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
400 # is it for me or one of mine?
401 my ($from, $to, $via, $call, $dxchan);
410 # if this is a 'nodx' node then ignore it
411 if ($badnode->in($_[6]) || ($via && $badnode->in($via))) {
412 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
416 # if this is a 'bad spotter' user then ignore it
418 $nossid =~ s/-\d+$//;
419 if ($badspotter->in($nossid)) {
420 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
424 # if we are converting announces to talk is it a dup?
426 if (AnnTalk::is_talk_candidate($from, $_[3]) && AnnTalk::dup($from, $to, $_[3])) {
427 dbg("DXPROT: Dupe talk from announce, dropped") if isdbg('chanerr');
432 # remember a route to this node and also the node on which this user is
433 RouteDB::update($_[6], $origin);
434 # RouteDB::update($to, $_[6]);
436 # it is here and logged on
437 $dxchan = DXChannel->get($main::myalias) if $to eq $main::mycall;
438 $dxchan = DXChannel->get($to) unless $dxchan;
439 if ($dxchan && $dxchan->is_user) {
441 $dxchan->talk($from, $to, $via, $_[3]);
445 # is it elsewhere, visible on the cluster via the to address?
446 # note: this discards the via unless the to address is on
449 if ($ref = Route::get($to)) {
450 $vref = Route::Node::get($via) if $via;
451 $vref = undef unless $vref && grep $to eq $_, $vref->users;
452 $ref->dxchan->talk($from, $to, $vref ? $via : undef, $_[3], $_[6]);
456 # can we see an interface to send it down?
458 # not visible here, send a message of condolence
460 $ref = Route::get($from);
461 $vref = $ref = Route::Node::get($_[6]) unless $ref;
463 $dxchan = $ref->dxchan;
464 $dxchan->talk($main::mycall, $from, $vref ? $vref->call : undef, $dxchan->msg('talknh', $to) );
476 # route 'foreign' pc26s
478 if ($_[7] ne $main::mycall) {
479 $self->route($_[7], $line);
485 # return if $rspfcheck and !$self->rspfcheck(1, $_[7], $_[6]);
487 # if this is a 'nodx' node then ignore it
488 if ($badnode->in($_[7])) {
489 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
493 # if this is a 'bad spotter' user then ignore it
495 $nossid =~ s/-\d+$//;
496 if ($badspotter->in($nossid)) {
497 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
501 # convert the date to a unix date
502 my $d = cltounix($_[3], $_[4]);
503 # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
504 if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
505 dbg("PCPROT: Spot ignored, invalid date or out of range ($_[3] $_[4])\n") if isdbg('chanerr');
510 if ($baddx->in($_[2]) || BadWords::check($_[2])) {
511 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
516 $_[5] =~ s/^\s+//; # take any leading blanks off
517 $_[2] = unpad($_[2]); # take off leading and trailing blanks from spotted callsign
518 if ($_[2] =~ /BUST\w*$/) {
519 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
524 if (@bad = BadWords::check($_[5])) {
525 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
531 # RouteDB::update($_[7], $self->{call});
532 # RouteDB::update($_[6], $_[7]);
534 my @spot = Spot::prepare($_[1], $_[2], $d, $_[5], $_[6], $_[7]);
536 my $thing = Thingy::Dx->new(origin=>$main::mycall, group=>'DX');
537 $thing->from_DXProt(DXProt=>$line,spotdata=>\@spot);
538 $thing->queue($self);
540 # this goes after the input filtering, but before the add
541 # so that if it is input filtered, it isn't added to the dup
542 # list. This allows it to come in from a "legitimate" source
544 # @spot at this point contains:-
545 # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
546 # then spotted itu, spotted cq, spotters itu, spotters cq
547 # you should be able to route on any of these
550 # fix up qra locators of known users
551 my $user = DXUser->get_current($spot[4]);
553 my $qra = $user->qra;
554 unless ($qra && is_qra($qra)) {
555 my $lat = $user->lat;
556 my $long = $user->long;
557 if (defined $lat && defined $long) {
558 $user->qra(DXBearing::lltoqra($lat, $long));
563 # send a remote command to a distant cluster if it is visible and there is no
564 # qra locator and we havn't done it for a month.
566 unless ($user->qra) {
568 my $to = $user->homenode;
569 my $last = $user->lastoper || 0;
570 if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
571 my $cmd = "forward/opernam $spot[4]";
572 # send the rcmd but we aren't interested in the replies...
573 my $dxchan = $node->dxchan;
574 if ($dxchan && $dxchan->is_clx) {
575 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
577 route(undef, $to, pc34($main::mycall, $to, $cmd));
581 $node = Route::Node::get($to);
583 $dxchan = $node->dxchan;
584 if ($dxchan && $dxchan->is_clx) {
585 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
587 route(undef, $to, pc34($main::mycall, $to, $cmd));
591 $user->lastoper($main::systime);
600 $r = Local::spot($self, @spot);
602 # dbg("Local::spot1 error $@") if isdbg('local') if $@;
605 # DON'T be silly and send on PC26s!
606 return if $pcno == 26;
608 # send out the filtered spots
609 # send_dx_spot($self, $line, @spot) if @spot;
620 # return if $rspfcheck and !$self->rspfcheck(1, $_[5], $_[1]);
622 # announce duplicate checking
623 $_[3] =~ s/^\s+//; # remove leading blanks
627 if (@bad = BadWords::check($_[3])) {
628 dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
633 # if this is a 'nodx' node then ignore it
634 if ($badnode->in($_[5])) {
635 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
639 # if this is a 'bad spotter' user then ignore it
641 $nossid =~ s/-\d+$//;
642 if ($badspotter->in($nossid)) {
643 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
650 if ((($dxchan = DXChannel->get($_[2])) && $dxchan->is_user) || $_[4] =~ /^[\#\w.]+$/){
651 $self->send_chat($line, @_[1..6]);
652 } elsif ($_[2] eq '*' || $_[2] eq $main::mycall) {
655 # RouteDB::update($_[5], $self->{call});
656 # RouteDB::update($_[1], $_[5]);
658 # ignore something that looks like a chat line coming in with sysop
659 # flag - this is a kludge...
660 if ($_[3] =~ /^\#\d+ / && $_[4] eq '*') {
661 dbg('PCPROT: Probable chat rewrite, dropped') if isdbg('chanerr');
665 # here's a bit of fun, convert incoming ann with a callsign in the first word
666 # or one saying 'to <call>' to a talk if we can route to the recipient
668 my $call = AnnTalk::is_talk_candidate($_[1], $_[3]);
670 my $ref = Route::get($call);
672 $dxchan = $ref->dxchan;
673 $dxchan->talk($_[1], $call, undef, $_[3], $_[5]) if $dxchan != $self;
680 $self->send_announce($line, @_[1..6]);
682 $self->route($_[2], $line);
697 my $newline = "PC16^";
699 # dos I want users from this channel?
700 unless ($self->user->wantpc16) {
701 dbg("PCPROT: don't send users to $origin") if isdbg('chanerr');
705 if ($ncall eq $main::mycall) {
706 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
711 RouteDB::update($ncall, $origin);
713 # do we believe this call?
714 unless ($ncall eq $origin || $self->is_believed($ncall)) {
715 if (my $ivp = Investigate::get($ncall, $origin)) {
716 $ivp->store_pcxx($pcno,$line,$origin,@_);
718 dbg("PCPROT: We don't believe $ncall on $origin") if isdbg('chanerr');
723 if (eph_dup($line)) {
724 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
728 my $parent = Route::Node::get($ncall);
730 # if there is a parent, proceed, otherwise if there is a latent PC19 in the PC19list,
731 # fix it up in the routing tables and issue it forth before the PC16
734 $dxchan = $parent->dxchan;
735 if ($dxchan && $dxchan ne $self) {
736 dbg("PCPROT: PC16 from $origin trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
743 for ($i = 2; $i < $#_; $i++) {
744 my ($call, $conf, $here) = $_[$i] =~ /^(\S+) (\S) (\d)/o;
745 next unless $call && $conf && defined $here && is_callsign($call);
746 next if $call eq $main::mycall;
748 eph_del_regex("^PC17\\^$call\\^$ncall");
752 my $r = Route::User::get($call);
753 my $flags = Route::here($here)|Route::conf($conf);
756 my $au = $r->addparent($parent);
757 if ($r->flags != $flags) {
761 push @rout, $r if $au;
763 push @rout, $parent->add_user($call, $flags);
767 # add this station to the user database, if required
768 $call =~ s/-\d+$//o; # remove ssid for users
769 my $user = DXUser->get_current($call);
770 $user = DXUser->new($call) if !$user;
771 $user->homenode($parent->call) if !$user->homenode;
772 $user->node($parent->call);
773 $user->lastin($main::systime) unless DXChannel->get($call);
778 my $thing = Thingy::Dx->new(origin=>$main::mycall);
779 $thing->from_DXProt(DXProt=>$line,originref=>$parent);
780 $thing->queue($self);
782 dbg("PCPROT: No usable users") if isdbg('chanerr');
798 eph_del_regex("^PC16\\^$ncall.*$ucall");
800 # do I want users from this channel?
801 unless ($self->user->wantpc16) {
802 dbg("PCPROT: don't send users to $origin") if isdbg('chanerr');
805 if ($ncall eq $main::mycall) {
806 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
810 RouteDB::delete($ncall, $origin);
812 # do we believe this call?
813 unless ($ncall eq $origin || $self->is_believed($ncall)) {
814 if (my $ivp = Investigate::get($ncall, $origin)) {
815 $ivp->store_pcxx($pcno,$line,$origin,@_);
817 dbg("PCPROT: We don't believe $ncall on $origin") if isdbg('chanerr');
822 my $uref = Route::User::get($ucall);
824 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
826 my $parent = Route::Node::get($ncall);
828 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
831 $dxchan = $parent->dxchan if $parent;
832 if ($dxchan && $dxchan ne $self) {
833 dbg("PCPROT: PC17 from $origin trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
837 # input filter if required and then remove user if present
839 # return unless $self->in_filter_route($parent);
840 $parent->del_user($uref) if $uref;
842 $parent = Route->new($ncall); # throw away
845 if (eph_dup($line)) {
846 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
850 $uref = Route->new($ucall) unless $uref; # throw away
851 $self->route_pc17($origin, $line, $parent, $uref);
861 $self->state('init');
863 # record the type and version offered
864 if ($_[1] =~ /DXSpider Version: (\d+\.\d+) Build: (\d+\.\d+)/) {
865 $self->version(52.51 + $1);
866 $self->user->version(52.51 + $1);
867 $self->build(0 + $2);
868 $self->user->build(0 + $2);
869 unless ($self->is_spider) {
870 $self->user->sort('S');
875 $self->version(50.0);
876 $self->version($_[2] / 100) if $_[2] && $_[2] =~ /^\d+$/;
877 $self->user->version($self->version);
880 # first clear out any nodes on this dxchannel
881 my $parent = Route::Node::get($origin);
882 my @rout = $parent->del_nodes;
883 $self->route_pc21($origin, $line, @rout, $parent) if @rout;
884 $self->send_local_config();
888 # incoming cluster list
897 my $newline = "PC19^";
902 # first get the INTERFACE node
903 my $parent = Route::Node::get($origin);
905 dbg("DXPROT: my parent $origin has disappeared");
910 # if the origin isn't the same as the INTERFACE, then reparent, creating nodes as necessary
911 if ($origin ne $self->call) {
912 my $op = Route::Node::get($origin);
914 $op = $parent->add($origin, 5000, Route::here(1));
915 my $user = DXUser->get_current($origin);
917 $user = DXUser->new($origin);
918 $user->priv(1); # I have relented and defaulted nodes
920 $user->homenode($origin);
921 $user->node($origin);
922 $user->wantroutepc19(1);
924 $user->sort('A') unless $user->is_node;
931 for ($i = 1; $i < $#_-1; $i += 4) {
933 my $call = uc $_[$i+1];
936 next unless defined $here && defined $conf && is_callsign($call);
938 eph_del_regex("^PC(?:21\\^$call|17\\^[^\\^]+\\^$call)");
940 # check for sane parameters
941 # $ver = 5000 if $ver eq '0000';
942 next if $ver < 5000; # only works with version 5 software
943 next if length $call < 3; # min 3 letter callsigns
944 next if $call eq $main::mycall;
946 # check that this PC19 isn't trying to alter the wrong dxchan
947 my $dxchan = DXChannel->get($call);
948 if ($dxchan && $dxchan != $self) {
949 dbg("PCPROT: PC19 from $origin trying to alter wrong locally connected $call, ignored!") if isdbg('chanerr');
953 # add this station to the user database, if required (don't remove SSID from nodes)
954 my $user = DXUser->get_current($call);
956 $user = DXUser->new($call);
957 $user->priv(1); # I have relented and defaulted nodes
959 $user->homenode($call);
962 $user->sort('A') unless $user->is_node;
964 RouteDB::update($call, $origin);
966 # do we believe this call?
967 my $genline = "PC19^$here^$call^$conf^$ver^$_[-1]^";
968 unless ($call eq $origin || $self->is_believed($call)) {
969 my $pt = $user->lastping($origin) || 0;
970 if ($pt+$investigation_int < $main::systime && !Investigate::get($call, $origin)) {
971 my $ivp = Investigate->new($call, $origin);
974 $ivp->store_pcxx($pcno,$genline,$origin,'PC19',$here,$call,$conf,$ver,$_[-1]);
976 dbg("PCPROT: We don't believe $call on $origin") if isdbg('chanerr');
982 if (eph_dup($genline)) {
983 dbg("PCPROT: dup PC19 for $call detected") if isdbg('chanerr');
987 my $r = Route::Node::get($call);
988 my $flags = Route::here($here)|Route::conf($conf);
990 # modify the routing table if it is in it, otherwise store it in the pc19list for now
993 if ($call ne $parent->call) {
994 if ($self->in_filter_route($r)) {
995 $ar = $parent->add($call, $ver, $flags);
996 push @rout, $ar if $ar;
1001 if ($r->version ne $ver || $r->flags != $flags) {
1004 push @rout, $r unless $ar;
1008 # if he is directly connected or allowed then add him, otherwise store him up for later
1009 if ($call eq $origin || $user->wantroutepc19) {
1010 my $new = Route->new($call); # throw away
1011 if ($self->in_filter_route($new)) {
1012 my $ar = $parent->add($call, $ver, $flags);
1013 $user->wantroutepc19(1) unless defined $user->wantroutepc19;
1014 push @rout, $ar if $ar;
1019 $pc19list{$call} = [] unless exists $pc19list{$call};
1020 my $nl = $pc19list{$call};
1021 push @{$pc19list{$call}}, [$origin, $ver, $flags] unless grep $_->[0] eq $origin, @$nl;
1025 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
1026 my $mref = DXMsg::get_busy($call);
1027 $mref->stop_msg($call) if $mref;
1029 $user->lastin($main::systime) unless DXChannel->get($call);
1034 $self->route_pc19($origin, $line, @rout) if @rout;
1037 # send local configuration
1044 $self->send_local_config();
1045 $self->send(pc22());
1046 $self->state('normal');
1047 $self->{lastping} = 0;
1050 # delete a cluster from the list
1057 my $call = uc $_[1];
1059 eph_del_regex("^PC1[679].*$call");
1061 # if I get a PC21 from the same callsign as self then treat it
1062 # as a PC39: I have gone away
1063 if ($call eq $self->call) {
1064 $self->disconnect(1);
1068 RouteDB::delete($call, $origin);
1070 # check if we believe this
1071 unless ($call eq $origin || $self->is_believed($call)) {
1072 if (my $ivp = Investigate::get($call, $origin)) {
1073 $ivp->store_pcxx($pcno,$line,$origin,@_);
1075 dbg("PCPROT: We don't believe $call on $origin") if isdbg('chanerr');
1080 # check to see if we are in the pc19list, if we are then don't bother with any of
1081 # this routing table manipulation, just remove it from the list and dump it
1083 if (my $nl = $pc19list{$call}) {
1084 $pc19list{$call} = [ grep {$_->[0] ne $origin} @$nl ];
1085 delete $pc19list{$call} unless @{$pc19list{$call}};
1088 my $parent = Route::Node::get($origin);
1090 dbg("DXPROT: my parent $origin has disappeared");
1094 if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
1095 my $node = Route::Node::get($call);
1098 my $dxchan = DXChannel->get($call);
1099 if ($dxchan && $dxchan != $self) {
1100 dbg("PCPROT: PC21 from $origin trying to alter locally connected $call, ignored!") if isdbg('chanerr');
1105 return unless $self->in_filter_route($node);
1108 push @rout, $node->del($parent);
1111 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
1116 $self->route_pc21($origin, $line, @rout) if @rout;
1126 $self->state('normal');
1127 $self->{lastping} = 0;
1138 # route foreign' pc27s
1140 if ($_[8] ne $main::mycall) {
1141 $self->route($_[8], $line);
1146 # only do a rspf check on PC23 (not 27)
1148 return if $rspfcheck and !$self->rspfcheck(1, $_[8], $_[7])
1152 my $d = cltounix($_[1], sprintf("%02d18Z", $_[2]));
1153 my $sfi = unpad($_[3]);
1154 my $k = unpad($_[4]);
1155 my $i = unpad($_[5]);
1156 my ($r) = $_[6] =~ /R=(\d+)/;
1158 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1159 dbg("PCPROT: WWV Date ($_[1] $_[2]) out of range") if isdbg('chanerr');
1162 if (Geomag::dup($d,$sfi,$k,$i,$_[6])) {
1163 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
1166 $_[7] =~ s/-\d+$//o; # remove spotter's ssid
1168 my $wwv = Geomag::update($d, $_[2], $sfi, $k, $i, @_[6..8], $r);
1172 $rep = Local::wwv($self, $_[1], $_[2], $sfi, $k, $i, @_[6..8], $r);
1174 # dbg("Local::wwv2 error $@") if isdbg('local') if $@;
1177 # DON'T be silly and send on PC27s!
1178 return if $pcno == 27;
1180 # broadcast to the eager world
1181 send_wwv_spot($self, $line, $d, $_[2], $sfi, $k, $i, @_[6..8]);
1191 my $call = uc $_[1];
1193 $nref = Route::Node::get($call);
1194 $uref = Route::User::get($call);
1195 return unless $nref || $uref; # if we don't know where they are, it's pointless sending it on
1197 if (eph_dup($line)) {
1198 dbg("PCPROT: Dup PC24 ignored\n") if isdbg('chanerr');
1202 $nref->here($_[2]) if $nref;
1203 $uref->here($_[2]) if $uref;
1204 my $ref = $nref || $uref;
1205 return unless $self->in_filter_route($ref);
1207 $self->route_pc24($origin, $line, $ref, $_[3]);
1217 if ($_[1] ne $main::mycall) {
1218 $self->route($_[1], $line);
1221 if ($_[2] eq $main::mycall) {
1222 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
1226 Log('DXProt', "Merge request for $_[3] spots and $_[4] WWV from $_[2]");
1230 my @in = reverse Spot::search(1, undef, undef, 0, $_[3]);
1233 $self->send(pc26(@{$in}[0..4], $_[2]));
1239 my @in = reverse Geomag::search(0, $_[4], time, 1);
1242 $self->send(pc27(@{$in}[0..5], $_[2]));
1247 sub handle_26 {goto &handle_11}
1248 sub handle_27 {goto &handle_23}
1250 # mail/file handling
1257 if ($_[1] eq $main::mycall) {
1259 my $sub = "DXMsg::handle_$pcno";
1262 $self->route($_[1], $line) unless $self->is_clx;
1266 sub handle_29 {goto &handle_28}
1267 sub handle_30 {goto &handle_28}
1268 sub handle_31 {goto &handle_28}
1269 sub handle_32 {goto &handle_28}
1270 sub handle_33 {goto &handle_28}
1278 if (eph_dup($line, $eph_pc34_restime)) {
1279 dbg("PCPROT: dupe PC34, ignored") if isdbg('chanerr');
1281 $self->process_rcmd($_[1], $_[2], $_[2], $_[3]);
1285 # remote command replies
1292 eph_del_regex("^PC35\\^$_[2]\\^$_[1]\\^");
1293 $self->process_rcmd_reply($_[1], $_[2], $_[1], $_[3]);
1296 sub handle_36 {goto &handle_34}
1305 if ($_[1] eq $main::mycall) {
1307 my $sub = "DXDb::handle_$pcno";
1310 $self->route($_[1], $line) unless $self->is_clx;
1314 # node connected list from neighbour
1323 # incoming disconnect
1330 if ($_[1] eq $origin) {
1331 $self->disconnect(1);
1333 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
1337 sub handle_40 {goto &handle_28}
1349 $l =~ s/[\x00-\x20\x7f-\xff]+//g; # remove all funny characters and spaces for dup checking
1350 if (eph_dup($l, $eph_info_restime)) {
1351 dbg("PCPROT: dup PC41, ignored") if isdbg('chanerr');
1355 # input filter if required
1356 # my $ref = Route::get($call) || Route->new($call);
1357 # return unless $self->in_filter_route($ref);
1359 if ($_[3] eq $_[2] || $_[3] =~ /^\s*$/) {
1360 dbg('PCPROT: invalid value') if isdbg('chanerr');
1364 # add this station to the user database, if required
1365 my $user = DXUser->get_current($call);
1366 $user = DXUser->new($call) unless $user;
1370 } elsif ($_[2] == 2) {
1372 } elsif ($_[2] == 3) {
1373 if (is_latlong($_[3])) {
1374 my ($lat, $long) = DXBearing::stoll($_[3]);
1377 $user->qra(DXBearing::lltoqra($lat, $long));
1379 dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
1382 } elsif ($_[2] == 4) {
1383 $user->homenode($_[3]);
1384 } elsif ($_[2] == 5) {
1385 if (is_qra(uc $_[3])) {
1386 my ($lat, $long) = DXBearing::qratoll(uc $_[3]);
1389 $user->qra(uc $_[3]);
1391 dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
1395 $user->lastoper($main::systime); # to cut down on excessive for/opers being generated
1398 unless ($self->{isolate}) {
1399 DXChannel::broadcast_nodes($line, $self); # send it to everyone but me
1402 # perhaps this IS what we want after all
1403 # $self->route_pc41($ref, $call, $_[2], $_[3], $_[4]);
1406 sub handle_42 {goto &handle_28}
1410 sub handle_44 {goto &handle_37}
1411 sub handle_45 {goto &handle_37}
1412 sub handle_46 {goto &handle_37}
1413 sub handle_47 {goto &handle_37}
1414 sub handle_48 {goto &handle_37}
1416 # message and database
1424 if (eph_dup($line)) {
1425 dbg("PCPROT: Dup PC49 ignored\n") if isdbg('chanerr');
1429 if ($_[1] eq $main::mycall) {
1430 DXMsg::handle_49($self, @_);
1432 $self->route($_[1], $line) unless $self->is_clx;
1436 # keep alive/user list
1446 RouteDB::update($call, $origin);
1448 my $node = Route::Node::get($call);
1450 return unless $node->call eq $origin;
1451 $node->usercount($_[2]);
1453 # input filter if required
1454 return unless $self->in_filter_route($node);
1456 $self->route_pc50($origin, $line, $node, $_[2], $_[3]) unless eph_dup($line);
1460 # incoming ping requests/answers
1473 if ($to eq $main::mycall) {
1475 $self->send(pc51($from, $to, '0'));
1477 # it's a reply, look in the ping list for this one
1478 my $ref = $pings{$from};
1480 my $tochan = DXChannel->get($from);
1482 my $r = shift @$ref;
1483 my $dxchan = DXChannel->get($r->{call});
1484 next unless $dxchan;
1485 my $t = tv_interval($r->{t}, [ gettimeofday ]);
1486 if ($dxchan->is_user) {
1487 my $s = sprintf "%.2f", $t;
1488 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1489 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1490 } elsif ($dxchan->is_node) {
1492 my $nopings = $tochan->user->nopings || $obscount;
1493 push @{$tochan->{pingtime}}, $t;
1494 shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1496 # cope with a missed ping, this means you must set the pingint large enough
1497 if ($t > $tochan->{pingint} && $t < 2 * $tochan->{pingint} ) {
1498 $t -= $tochan->{pingint};
1501 # calc smoothed RTT a la TCP
1502 if (@{$tochan->{pingtime}} == 1) {
1503 $tochan->{pingave} = $t;
1505 $tochan->{pingave} = $tochan->{pingave} + (($t - $tochan->{pingave}) / 6);
1507 $tochan->{nopings} = $nopings; # pump up the timer
1508 if (my $ivp = Investigate::get($from, $origin)) {
1511 } elsif (my $rref = Route::Node::get($r->{call})) {
1512 if (my $ivp = Investigate::get($from, $origin)) {
1522 RouteDB::update($from, $origin);
1524 if (eph_dup($line)) {
1525 dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1528 # route down an appropriate thingy
1529 $self->route($to, $line);
1533 # dunno but route it
1541 if ($call ne $main::mycall) {
1542 $self->route($call, $line);
1556 my $d = cltounix($call, sprintf("%02d18Z", $_[2]));
1557 if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $_[2] < 0 || $_[2] > 23) {
1558 dbg("PCPROT: WCY Date ($call $_[2]) out of range") if isdbg('chanerr');
1561 @_ = map { unpad($_) } @_;
1563 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1567 my $wcy = WCY::update($d, @_[2..12]);
1571 $rep = Local::wcy($self, @_[1..12]);
1573 # dbg("Local::wcy error $@") if isdbg('local') if $@;
1576 # broadcast to the eager world
1577 send_wcy_spot($self, $line, $d, @_[2..12]);
1580 # remote commands (incoming)
1587 $self->process_rcmd($_[1], $_[2], $_[3], $_[4]);
1590 # remote command replies
1597 $self->process_rcmd_reply($_[1], $_[2], $_[3], $_[4]);
1600 # if get here then rebroadcast the thing with its Hop count decremented (if
1601 # there is one). If it has a hop count and it decrements to zero then don't
1604 # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1615 if (eph_dup($line)) {
1616 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1618 unless ($self->{isolate}) {
1619 DXChannel::broadcast_nodes($line, $self) if $line =~ /\^H\d+\^?~?$/; # send it to everyone but me
1625 # This is called from inside the main cluster processing loop and is used
1626 # for despatching commands that are doing some long processing job
1631 my @dxchan = DXChannel->get_all();
1635 # send out a pc50 on EVERY channel all at once
1636 if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1637 $pc50s = pc50($main::me, scalar DXChannel::get_all_users);
1642 foreach $dxchan (@dxchan) {
1643 next unless $dxchan->is_node();
1644 next if $dxchan == $main::me;
1647 $dxchan->send($pc50s) if $pc50s;
1649 # send a ping out on this channel
1650 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1651 if ($dxchan->{nopings} <= 0) {
1652 $dxchan->disconnect;
1654 addping($main::mycall, $dxchan->call);
1655 $dxchan->{nopings} -= 1;
1656 $dxchan->{lastping} = $t;
1661 Investigate::process();
1664 if ($t - $last10 >= 10) {
1665 # clean out ephemera
1674 if ($main::systime - 3600 > $last_hour) {
1675 $last_hour = $main::systime;
1680 # finish up a pc context
1684 # some active measures
1690 my ($self, $filter, $hops, $isolate, $line) = @_;
1696 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1698 $routeit = adjust_hops($self, $line); # adjust its hop count by node name
1699 return unless $routeit;
1702 $self->send($routeit);
1704 $self->send($routeit) unless $self->{isolate} || $isolate;
1713 my @dxchan = DXChannel->get_all();
1715 my @dxcc = ((Prefix::cty_data($_[6]))[0..2], (Prefix::cty_data($_[7]))[0..2]);
1717 # send it if it isn't the except list and isn't isolated and still has a hop count
1718 # taking into account filtering and so on
1719 foreach $dxchan (@dxchan) {
1720 next if $dxchan == $main::me;
1721 next if $dxchan == $self && $self->is_node;
1723 my ($filter, $hops);
1725 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, @dxcc);
1733 my $isolate = shift;
1734 my ($filter, $hops);
1736 if ($self->{wwvfilter}) {
1737 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1738 return unless $filter;
1740 send_prot_line($self, $filter, $hops, $isolate, $line)
1747 my @dxchan = DXChannel->get_all();
1749 my @dxcc = ((Prefix::cty_data($_[10]))[0..2], (Prefix::cty_data($_[11]))[0..2]);
1751 # send it if it isn't the except list and isn't isolated and still has a hop count
1752 # taking into account filtering and so on
1753 foreach $dxchan (@dxchan) {
1754 next if $dxchan == $main::me;
1755 next if $dxchan == $self;
1757 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, @dxcc);
1765 my $isolate = shift;
1766 my ($filter, $hops);
1768 if ($self->{wcyfilter}) {
1769 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1770 return unless $filter;
1772 send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1780 my @dxchan = DXChannel->get_all();
1784 my $text = unpad($_[2]);
1786 if ($_[3] eq '*') { # sysops
1788 } elsif ($_[3] gt ' ') { # speciality list handling
1789 my ($name) = split /\./, $_[3];
1790 $target = "$name"; # put the rest in later (if bothered)
1797 $target = "ALL" if !$target;
1800 # obtain country codes etc
1801 my @a = Prefix::cty_data($_[0]);
1802 my @b = Prefix::cty_data($_[4]);
1803 if ($self->{inannfilter}) {
1804 my ($filter, $hops) =
1805 $self->{inannfilter}->it(@_, $self->{call},
1807 @b[0..2], $a[3], $b[3]);
1809 dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1814 if (AnnTalk::dup($_[0], $_[1], $_[2])) {
1815 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1819 Log('ann', $target, $_[0], $text);
1821 # send it if it isn't the except list and isn't isolated and still has a hop count
1822 # taking into account filtering and so on
1823 foreach $dxchan (@dxchan) {
1824 next if $dxchan == $main::me;
1825 next if $dxchan == $self && $self->is_node;
1826 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call},
1827 @a[0..2], @b[0..2]);
1836 $msgid = 1 if $msgid > 999;
1845 my @dxchan = DXChannel->get_all();
1848 my $text = unpad($_[2]);
1851 # munge the group and recast the line if required
1852 if ($target =~ s/\.LST$//) {
1856 # obtain country codes etc
1857 my @a = Prefix::cty_data($_[0]);
1858 my @b = Prefix::cty_data($_[4]);
1859 if ($self->{inannfilter}) {
1860 my ($filter, $hops) =
1861 $self->{inannfilter}->it(@_, $self->{call},
1863 @b[0..2], $a[3], $b[3]);
1865 dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
1870 if (AnnTalk::dup($_[0], $_[1], $_[2], $chatdupeage)) {
1871 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
1876 Log('chat', $target, $_[0], $text);
1878 # send it if it isn't the except list and isn't isolated and still has a hop count
1879 # taking into account filtering and so on
1880 foreach $dxchan (@dxchan) {
1881 my $is_ak1a = $dxchan->is_ak1a;
1883 if ($dxchan->is_node) {
1884 next if $dxchan == $main::me;
1885 next if $dxchan == $self;
1886 next unless $dxchan->is_spider || $is_ak1a;
1887 next if $target eq 'LOCAL';
1888 if (!$ak1a_line && $is_ak1a) {
1889 $ak1a_line = DXProt::pc12($_[0], $text, $_[1], "$target.LST");
1893 $dxchan->chat($is_ak1a ? $ak1a_line : $line, $self->{isolate}, $target, $_[1],
1894 $text, @_, $self->{call}, @a[0..2], @b[0..2]);
1902 my $isolate = shift;
1906 my ($filter, $hops);
1908 if ($self->{annfilter}) {
1909 ($filter, $hops) = $self->{annfilter}->it(@_);
1910 return unless $filter;
1912 send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1921 sub send_local_config
1929 dbg('DXProt::send_local_config') if isdbg('trace');
1932 if ($self->{isolate}) {
1933 @localnodes = ( $main::routeroot );
1934 $self->send_route($main::mycall, \&pc19, 1, $main::routeroot);
1936 # create a list of all the nodes that are not connected to this connection
1937 # and are not themselves isolated, this to make sure that isolated nodes
1938 # don't appear outside of this node
1940 # send locally connected nodes
1941 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1942 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1943 $self->send_route($main::mycall, \&pc19, scalar(@localnodes)+1, $main::routeroot, @localnodes);
1946 my @rawintcalls = map { $_->nodes } @localnodes if @localnodes;
1948 for $node (@rawintcalls) {
1949 push @intcalls, $node unless grep $node eq $_, @intcalls;
1951 my $ref = Route::Node::get($self->{call});
1952 my @rnodes = $ref->nodes;
1953 for $node (@intcalls) {
1954 push @remotenodes, Route::Node::get($node) unless grep $node eq $_, @rnodes, @remotenodes;
1956 $self->send_route($main::mycall, \&pc19, scalar(@remotenodes), @remotenodes);
1959 # get all the users connected on the above nodes and send them out
1960 foreach $node ($main::routeroot, @localnodes, @remotenodes) {
1962 my @rout = map {my $r = Route::User::get($_); $r ? ($r) : ()} $node->users;
1963 $self->send_route($main::mycall, \&pc16, 1, $node, @rout) if @rout && $self->user->wantsendpc16;
1965 dbg("sent a null value") if isdbg('chanerr');
1971 # route a message down an appropriate interface for a callsign
1973 # is called route(to, pcline);
1978 my ($self, $call, $line) = @_;
1980 if (ref $self && $call eq $self->{call}) {
1981 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1985 # always send it down the local interface if available
1986 my $dxchan = DXChannel->get($call);
1988 dbg("route: $call -> $dxchan->{call} direct" ) if isdbg('route');
1990 my $cl = Route::get($call);
1991 $dxchan = $cl->dxchan if $cl;
1993 if (ref $self && $dxchan eq $self) {
1994 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1997 dbg("route: $call -> $dxchan->{call} using normal route" ) if isdbg('route');
2001 # try the backstop method
2003 my $rcall = RouteDB::get($call);
2005 if ($self && $rcall eq $self->{call}) {
2006 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
2009 $dxchan = DXChannel->get($rcall);
2010 dbg("route: $call -> $rcall using RouteDB" ) if isdbg('route') && $dxchan;
2015 my $routeit = adjust_hops($dxchan, $line); # adjust its hop count by node name
2017 $dxchan->send($routeit) unless $dxchan == $main::me;
2020 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
2025 # obtain the hops from the list for this callsign and pc no
2031 my $hops = $DXProt::hopcount{$pcno};
2032 $hops = $DXProt::def_hopcount if !$hops;
2037 # adjust the hop count on a per node basis using the user loadable
2038 # hop table if available or else decrement an existing one
2045 my $call = $self->{call};
2048 if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
2049 my ($pcno) = $s =~ /^PC(\d\d)/o;
2050 confess "$call called adjust_hops with '$s'" unless $pcno;
2051 my $ref = $nodehops{$call} if %nodehops;
2053 my $newhops = $ref->{$pcno};
2054 return "" if defined $newhops && $newhops == 0;
2055 $newhops = $ref->{default} unless $newhops;
2056 return "" if defined $newhops && $newhops == 0;
2057 $newhops = $hops if !$newhops;
2058 $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
2060 # simply decrement it
2061 # $hops--; this is done on receipt now
2062 return "" if !$hops;
2063 $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
2075 return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
2076 do "$main::data/hop_table.pl";
2082 # add a ping request to the ping queues
2085 my ($from, $to, $via) = @_;
2086 my $ref = $pings{$to} || [];
2089 $r->{t} = [ gettimeofday ];
2090 if ($via && (my $dxchan = DXChannel->get($via))) {
2091 $dxchan->send(pc51($to, $main::mycall, 1));
2093 route(undef, $to, pc51($to, $main::mycall, 1));
2097 my $u = DXUser->get_current($to);
2099 $u->lastping(($via || $from), $main::systime);
2106 my ($self, $tonode, $fromnode, $user, $cmd) = @_;
2107 if ($tonode eq $main::mycall) {
2108 my $ref = DXUser->get_current($fromnode);
2109 my $cref = Route::Node::get($fromnode);
2110 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
2111 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
2112 if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
2113 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
2114 my $oldpriv = $self->{priv};
2115 $self->{priv} = $ref->{priv}; # assume the user's privilege level
2116 my @in = (DXCommandmode::run_cmd($self, $cmd));
2117 $self->{priv} = $oldpriv;
2118 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
2119 delete $self->{remotecmd};
2121 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
2124 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
2127 my $ref = DXUser->get_current($tonode);
2128 if ($ref && $ref->is_clx) {
2129 $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
2131 $self->route($tonode, pc34($fromnode, $tonode, $cmd));
2136 sub process_rcmd_reply
2138 my ($self, $tonode, $fromnode, $user, $line) = @_;
2139 if ($tonode eq $main::mycall) {
2140 my $s = $rcmds{$fromnode};
2142 my $dxchan = DXChannel->get($s->{call});
2143 my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
2144 $ref->send($line) if $ref;
2145 delete $rcmds{$fromnode} if !$dxchan;
2147 # send unsolicited ones to the sysop
2148 my $dxchan = DXChannel->get($main::myalias);
2149 $dxchan->send($line) if $dxchan;
2152 my $ref = DXUser->get_current($tonode);
2153 if ($ref && $ref->is_clx) {
2154 $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
2156 $self->route($tonode, pc35($fromnode, $tonode, $line));
2165 my $fromnode = shift;
2170 Log('rcmd', 'out', $fromnode, $line);
2171 if ($self->is_clx) {
2172 $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
2174 $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
2179 # add a rcmd request to the rcmd queues
2182 my ($self, $to, $cmd) = @_;
2185 $r->{call} = $self->{call};
2186 $r->{t} = $main::systime;
2190 my $ref = Route::Node::get($to);
2191 my $dxchan = $ref->dxchan;
2192 if ($dxchan && $dxchan->is_clx) {
2193 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
2195 route(undef, $to, pc34($main::mycall, $to, $cmd));
2202 my $pc39flag = shift;
2203 my $call = $self->call;
2205 return if $self->{disconnecting}++;
2207 unless ($pc39flag && $pc39flag == 1) {
2208 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
2211 # get rid of any PC16/17/19
2212 eph_del_regex("^PC1[679]*$call");
2214 # do routing stuff, remove me from routing table
2215 my $node = Route::Node::get($call);
2218 @rout = $node->del($main::routeroot);
2220 # and all my ephemera as well
2223 eph_del_regex("^PC1[679].*$c");
2227 RouteDB::delete_interface($call);
2229 # remove them from the pc19list as well
2230 while (my ($k,$v) = each %pc19list) {
2231 my @l = grep {$_->[0] ne $call} @{$pc19list{$k}};
2233 $pc19list{$k} = \@l;
2235 delete $pc19list{$k};
2239 eph_del_regex("^PC1[679].*$k");
2242 # unbusy and stop and outgoing mail
2243 my $mref = DXMsg::get_busy($call);
2244 $mref->stop_msg($call) if $mref;
2246 # broadcast to all other nodes that all the nodes connected to via me are gone
2247 unless ($pc39flag && $pc39flag == 2) {
2248 $self->route_pc21($main::mycall, undef, @rout) if @rout;
2251 # remove outstanding pings
2252 delete $pings{$call};
2254 # I was the last node visited
2255 $self->user->node($main::mycall);
2257 # send info to all logged in thingies
2258 $self->tell_login('logoutn');
2260 Log('DXProt', $call . " Disconnected");
2262 $self->SUPER::disconnect;
2267 # send a talk message to this thingy
2271 my ($self, $from, $to, $via, $line, $origin) = @_;
2273 $line =~ s/\^/\\5E/g; # remove any ^ characters
2274 $self->send(DXProt::pc10($from, $to, $via, $line, $origin));
2275 Log('talk', $to, $from, $via?$via:$self->call, $line) unless $origin && $origin ne $main::mycall;
2278 # send it if it isn't the except list and isn't isolated and still has a hop count
2279 # taking into account filtering and so on
2285 my $generate = shift;
2286 my $no = shift; # the no of things to filter on
2288 my ($filter, $hops);
2291 for (; @_ && $no; $no--) {
2294 if (!$self->{isolate} && $self->{routefilter}) {
2297 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->{state}, $r->{state});
2301 dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
2304 dbg("was sent a null value") if isdbg('chanerr');
2307 push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
2311 foreach my $line (&$generate(@rin, @_)) {
2314 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
2316 $routeit = adjust_hops($self, $line); # adjust its hop count by node name
2317 next unless $routeit;
2320 $self->send($routeit);
2329 my $generate = shift;
2331 my @dxchan = DXChannel::get_all_nodes();
2334 unless ($self->{isolate}) {
2335 foreach $dxchan (@dxchan) {
2336 next if $dxchan == $self;
2337 next if $dxchan == $main::me;
2338 next unless $dxchan->isa('DXProt');
2339 next if ($generate == \&pc16 || $generate==\&pc17) && !$dxchan->user->wantsendpc16;
2341 $dxchan->send_route($origin, $generate, @_);
2349 return unless $self->user->wantpc16;
2352 broadcast_route($self, $origin, \&pc16, $line, 1, @_);
2358 return unless $self->user->wantpc16;
2361 broadcast_route($self, $origin, \&pc17, $line, 1, @_);
2369 broadcast_route($self, $origin, \&pc19, $line, scalar @_, @_);
2377 broadcast_route($self, $origin, \&pc21, $line, scalar @_, @_);
2385 broadcast_route($self, $origin, \&pc24, $line, 1, @_);
2393 broadcast_route($self, $origin, \&pc41, $line, 1, @_);
2401 broadcast_route($self, $origin, \&pc50, $line, 1, @_);
2408 my ($filter, $hops) = (1, 1);
2410 if ($self->{inroutefilter}) {
2411 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq, $self->state, $r->state);
2412 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
2420 my $t = shift || $eph_restime;
2424 $s =~ s/\^H\d\d?\^?\~?$//;
2425 $r = 1 if exists $eph{$s}; # pump up the dup if it keeps circulating
2426 $eph{$s} = $main::systime + $t;
2427 dbg("PCPROT: emphemeral duplicate") if $r && isdbg('chanerr');
2435 while (($key, $val) = each %eph) {
2436 if ($key =~ m{$regex}) {
2446 while (($key, $val) = each %eph) {
2447 if ($main::systime >= $val) {
2458 while (($key, $val) = each %eph) {
2459 push @out, $key, $val;
2466 goto &DXCommandmode::run_cmd;
2470 # import any msgs in the chat directory
2471 # the messages are sent to the chat group which forms the
2472 # the first part of the name (eg: solar.1243.txt would be
2473 # sent to chat group SOLAR)
2475 # Each message found is sent: one non-blank line to one chat
2476 # message. So 4 lines = 4 chat messages.
2478 # The special name LOCAL is for local users ANN
2479 # The special name ALL is for ANN/FULL
2480 # The special name SYSOP is for ANN/SYSOP
2484 # are there any to do in this directory?
2485 return unless -d $chatimportfn;
2486 unless (opendir(DIR, $chatimportfn)) {
2487 dbg("can\'t open $chatimportfn $!") if isdbg('msg');
2488 Log('msg', "can\'t open $chatimportfn $!");
2492 my @names = readdir(DIR);
2495 foreach $name (@names) {
2496 next if $name =~ /^\./;
2497 my $splitit = $name =~ /^split/;
2498 my $fn = "$chatimportfn/$name";
2500 unless (open(MSG, $fn)) {
2501 dbg("can\'t open import file $fn $!") if isdbg('msg');
2502 Log('msg', "can\'t open import file $fn $!");
2506 my @msg = map { s/\r?\n$//; $_ } <MSG>;
2510 my @cat = split /\./, $name;
2511 my $target = uc $cat[0];
2513 foreach my $text (@msg) {
2514 next unless $text && $text !~ /^\s*#/;
2515 if ($target eq 'ALL' || $target eq 'LOCAL' || $target eq 'SYSOP') {
2516 my $sysopflag = $target eq 'SYSOP' ? '*' : ' ';
2517 if ($target ne 'LOCAL') {
2518 send_announce($main::me, pc12($main::mycall, $text, '*', $sysopflag), $main::mycall, '*', $text, $sysopflag, $main::mycall, '0');
2520 Log('ann', 'LOCAL', $main::mycall, $text);
2521 DXChannel::broadcast_list("To LOCAL de ${main::mycall}: $text\a", 'ann', undef, DXCommandmode->get_all());
2524 my $msgid = nextchatmsgid();
2525 $text = "#$msgid $text";
2526 send_chat($main::me, pc12($main::mycall, $text, '*', $target), $main::mycall, '*', $text, $target, $main::mycall, '0');