+ # DON'T be silly and send on PC26s!
+ return if $pcno == 26;
+
+ # send out the filtered spots
+ send_dx_spot($self, $line, @spot) if @spot;
+ return;
+ }
+
+ if ($pcno == 12) { # announces
+ # announce duplicate checking
+ if (AnnTalk::dup($field[1], $field[2], $field[3])) {
+ dbg('chan', "Duplicate Announce ignored\n");
+ return;
+ }
+
+ if ($field[2] eq '*' || $field[2] eq $main::mycall) {
+
+ # global ann filtering on INPUT
+ if ($self->{inannfilter}) {
+ my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
+ unless ($filter) {
+ dbg('chan', "Rejected by filter");
+ return;
+ }
+ }
+
+ # send it
+ $self->send_announce($line, @field[1..6]);
+
+ if ($decode_dk0wcy && $field[1] eq $decode_dk0wcy) {
+ my ($hour, $k, $next, $a, $r, $sfi, $alarm) = $field[3] =~ /^Aurora Beacon\s+(\d+)UTC,\s+Kiel\s+K=(\d+),.*ed\s+K=(\d+),\s+A=(\d+),\s+R=(\d+),\s+SFI=(\d+),.*larm:\s+(\w+)/;
+ $alarm = ($alarm =~ /^Y/i) ? ', Aurora in DE' : '';
+ my $wwv = Geomag::update($main::systime, $hour, $sfi, $a, $k, "R=$r, Next K=$next$alarm", $decode_dk0wcy, $field[5], $r) if $sfi && $r;
+ }
+
+ } else {
+ $self->route($field[2], $line);
+ }
+
+ return;
+ }
+
+ if ($pcno == 13) {
+ last SWITCH;
+ }
+ if ($pcno == 14) {
+ last SWITCH;
+ }
+ if ($pcno == 15) {
+ last SWITCH;
+ }
+
+ if ($pcno == 16) { # add a user
+ my $node = DXCluster->get_exact($field[1]);
+ my $dxchan;
+ if (!$node && ($dxchan = DXChannel->get($field[1]))) {
+ # add it to the node table if it isn't present and it's
+ # connected locally
+ $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
+ broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
+
+ }
+ return unless $node; # ignore if havn't seen a PC19 for this one yet
+ return unless $node->isa('DXNode');
+ if ($node->dxchan != $self) {
+ dbg('chan', "LOOP: $field[1] came in on wrong channel");
+ return;
+ }
+ if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
+ dbg('chan', "LOOP: $field[1] connected locally");
+ return;
+ }
+ my $i;
+
+ for ($i = 2; $i < $#field; $i++) {
+ my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
+ next if !$call || length $call < 3 || length $call > 8;
+ next if !$confmode;
+ $call = uc $call;
+ next if DXCluster->get_exact($call); # we already have this (loop?)
+
+ $confmode = $confmode eq '*';
+ DXNodeuser->new($self, $node, $call, $confmode, $here);
+
+ # add this station to the user database, if required
+ $call =~ s/-\d+$//o; # remove ssid for users
+ my $user = DXUser->get_current($call);
+ $user = DXUser->new($call) if !$user;
+ $user->homenode($node->call) if !$user->homenode;
+ $user->node($node->call);
+ $user->lastin($main::systime) unless DXChannel->get($call);
+ $user->put;
+ }
+
+ # queue up any messages (look for privates only)
+ DXMsg::queue_msg(1) if $self->state eq 'normal';
+ last SWITCH;
+ }
+
+ if ($pcno == 17) { # remove a user
+ my $node = DXCluster->get_exact($field[2]);
+ my $dxchan;
+ if (!$node && ($dxchan = DXChannel->get($field[2]))) {
+ # add it to the node table if it isn't present and it's
+ # connected locally
+ $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
+ broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
+ return;
+ }
+ return unless $node;
+ return unless $node->isa('DXNode');
+ if ($node->dxchan != $self) {
+ dbg('chan', "LOOP: $field[2] came in on wrong channel");
+ return;
+ }
+ if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
+ dbg('chan', "LOOP: $field[2] connected locally");
+ return;
+ }
+ my $ref = DXCluster->get_exact($field[1]);
+ $ref->del() if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 18) { # link request
+ $self->state('init');
+
+ # first clear out any nodes on this dxchannel
+ my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
+ foreach my $node (@gonenodes) {
+ next if $node->dxchan == $DXProt::me;
+ broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
+ $node->del();
+ }
+ $self->send_local_config();
+ $self->send(pc20());
+ return; # we don't pass these on
+ }
+
+ if ($pcno == 19) { # incoming cluster list
+ my $i;
+ my $newline = "PC19^";
+ for ($i = 1; $i < $#field-1; $i += 4) {
+ my $here = $field[$i];
+ my $call = uc $field[$i+1];
+ my $confmode = $field[$i+2];
+ my $ver = $field[$i+3];
+
+ $ver = 5400 if !$ver && $allowzero;
+
+ # now check the call over
+ my $node = DXCluster->get_exact($call);
+ if ($node) {
+ my $dxchan;
+ if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
+ dbg('chan', "LOOP: $call connected locally");
+ }
+ if ($node->dxchan != $self) {
+ dbg('chan', "LOOP: $call come in on wrong channel");
+ next;
+ }
+ dbg('chan', "already have $call");
+ next;
+ }
+
+ # check for sane parameters
+ next if $ver < 5000; # only works with version 5 software
+ next if length $call < 3; # min 3 letter callsigns
+
+ # add it to the nodes table and outgoing line
+ $newline .= "$here^$call^$confmode^$ver^";
+ DXNode->new($self, $call, $confmode, $here, $ver);
+
+ # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
+ my $mref = DXMsg::get_busy($call);
+ $mref->stop_msg($call) if $mref;
+
+ # add this station to the user database, if required (don't remove SSID from nodes)
+ my $user = DXUser->get_current($call);
+ if (!$user) {
+ $user = DXUser->new($call);
+ $user->sort('A');
+ $user->priv(1); # I have relented and defaulted nodes
+ $self->{priv} = 1; # to user RCMDs allowed
+ $user->homenode($call);
+ $user->node($call);
+ }
+ $user->lastin($main::systime) unless DXChannel->get($call);
+ $user->put;
+ }
+
+ return if $newline eq "PC19^";
+
+ # add hop count
+ $newline .= get_hops(19) . "^";
+ $line = $newline;
+ last SWITCH;
+ }
+
+ if ($pcno == 20) { # send local configuration
+ $self->send_local_config();
+ $self->send(pc22());
+ $self->state('normal');
+ return;
+ }
+
+ if ($pcno == 21) { # delete a cluster from the list
+ my $call = uc $field[1];
+ if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
+ my $node = DXCluster->get_exact($call);
+ if ($node) {
+ if ($node->dxchan != $self) {
+ dbg('chan', "LOOP: $call come in on wrong channel");
+ return;
+ }
+ my $dxchan;
+ if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
+ dbg('chan', "LOOP: $call connected locally");
+ return;
+ }
+ $node->del();
+ } else {
+ dbg('chan', "$call not in table, dropped");
+ return;
+ }
+ }
+ last SWITCH;
+ }
+
+ if ($pcno == 22) {
+ $self->state('normal');
+ return;
+ }
+
+ if ($pcno == 23 || $pcno == 27) { # WWV info
+
+ # route 'foreign' pc27s
+ if ($pcno == 27) {
+ if ($field[8] ne $main::mycall) {
+ $self->route($field[8], $line);
+ return;
+ }
+ }
+
+ # do some de-duping
+ my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
+ my $sfi = unpad($field[3]);
+ my $k = unpad($field[4]);
+ my $i = unpad($field[5]);
+ my ($r) = $field[6] =~ /R=(\d+)/;
+ $r = 0 unless $r;
+ if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
+ dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
+ return;
+ }
+ if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
+ dbg('chan', "Dup WWV Spot ignored\n");
+ return;
+ }
+ $field[7] =~ s/-\d+$//o; # remove spotter's ssid
+
+ my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
+
+ my $rep;
+ eval {
+ $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
+ };
+# dbg('local', "Local::wwv2 error $@") if $@;
+ return if $rep;
+
+ # DON'T be silly and send on PC27s!
+ return if $pcno == 27;
+
+ # broadcast to the eager world
+ send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
+ return;
+ }
+
+ if ($pcno == 24) { # set here status
+ my $call = uc $field[1];
+ my $ref = DXCluster->get_exact($call);
+ $ref->here($field[2]) if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 25) { # merge request
+ if ($field[1] ne $main::mycall) {
+ $self->route($field[1], $line);
+ return;
+ }
+ if ($field[2] eq $main::mycall) {
+ dbg('chan', "Trying to merge to myself, ignored");
+ return;
+ }
+
+ Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
+
+ # spots
+ if ($field[3] > 0) {
+ my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
+ my $in;
+ foreach $in (@in) {
+ $self->send(pc26(@{$in}[0..4], $field[2]));
+ }
+ }
+
+ # wwv
+ if ($field[4] > 0) {
+ my @in = reverse Geomag::search(0, $field[4], time, 1);
+ my $in;
+ foreach $in (@in) {
+ $self->send(pc27(@{$in}[0..5], $field[2]));
+ }
+ }
+ return;
+ }
+
+ if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
+ if ($pcno == 49 || $field[1] eq $main::mycall) {
+ DXMsg::process($self, $line);
+ } else {
+ $self->route($field[1], $line);
+ }
+ return;
+ }
+
+ if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
+ if ($field[1] eq $main::mycall) {
+ my $ref = DXUser->get_current($field[2]);
+ my $cref = DXCluster->get($field[2]);
+ Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
+ unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) { # not allowed to relay RCMDS!
+ if ($ref->{priv}) { # you have to have SOME privilege, the commands have further filtering
+ $self->{remotecmd} = 1; # for the benefit of any command that needs to know
+ my $oldpriv = $self->{priv};
+ $self->{priv} = $ref->{priv}; # assume the user's privilege level
+ my @in = (DXCommandmode::run_cmd($self, $field[3]));
+ $self->{priv} = $oldpriv;
+ for (@in) {
+ s/\s*$//og;
+ $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
+ Log('rcmd', 'out', $field[2], $_);
+ }
+ delete $self->{remotecmd};
+ } else {
+ $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
+ }
+ } else {
+ $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
+ }
+ } else {
+ $self->route($field[1], $line);
+ }
+ return;
+ }
+
+ if ($pcno == 35) { # remote command replies
+ if ($field[1] eq $main::mycall) {
+ my $s = $rcmds{$field[2]};
+ if ($s) {
+ my $dxchan = DXChannel->get($s->{call});
+ $dxchan->send($field[3]) if $dxchan;
+ delete $rcmds{$field[2]} if !$dxchan;
+ }
+ } else {
+ $self->route($field[1], $line);
+ }
+ return;
+ }
+
+ # for pc 37 see 44 onwards
+
+ if ($pcno == 38) { # node connected list from neighbour
+ return;
+ }
+
+ if ($pcno == 39) { # incoming disconnect
+ $self->disconnect(1);
+ return;
+ }
+
+ if ($pcno == 41) { # user info
+ # add this station to the user database, if required
+ my $user = DXUser->get_current($field[1]);
+ if (!$user) {
+ # then try without an SSID
+ $field[1] =~ s/-\d+$//o;
+ $user = DXUser->get_current($field[1]);
+ }
+ $user = DXUser->new($field[1]) if !$user;
+
+ if ($field[2] == 1) {
+ $user->name($field[3]);
+ } elsif ($field[2] == 2) {
+ $user->qth($field[3]);
+ } elsif ($field[2] == 3) {
+ my ($lat, $long) = DXBearing::stoll($field[3]);
+ $user->lat($lat);
+ $user->long($long);
+ } elsif ($field[2] == 4) {
+ $user->homenode($field[3]);
+ }
+ $user->put;
+ last SWITCH;
+ }
+ if ($pcno == 43) {
+ last SWITCH;
+ }
+ if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
+ DXDb::process($self, $line);
+ return;
+ }
+
+ if ($pcno == 50) { # keep alive/user list
+ my $node = DXCluster->get_exact($field[1]);
+ if ($node) {
+ return unless $node->isa('DXNode');
+ return unless $node->dxchan == $self;
+ $node->update_users($field[2]);
+ }
+ last SWITCH;
+ }
+
+ if ($pcno == 51) { # incoming ping requests/answers
+
+ # is it for us?
+ if ($field[1] eq $main::mycall) {
+ my $flag = $field[3];
+ if ($flag == 1) {
+ $self->send(pc51($field[2], $field[1], '0'));
+ } else {
+ # it's a reply, look in the ping list for this one
+ my $ref = $pings{$field[2]};
+ if ($ref) {
+ my $tochan = DXChannel->get($field[2]);
+ while (@$ref) {
+ my $r = shift @$ref;
+ my $dxchan = DXChannel->get($r->{call});
+ next unless $dxchan;
+ my $t = tv_interval($r->{t}, [ gettimeofday ]);
+ if ($dxchan->is_user) {
+ my $s = sprintf "%.2f", $t;
+ my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
+ $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
+ } elsif ($dxchan->is_ak1a) {
+ if ($tochan) {
+ $tochan->{nopings} = 2; # pump up the timer
+ push @{$tochan->{pingtime}}, $t;
+ shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
+ my $st;
+ for (@{$tochan->{pingtime}}) {
+ $st += $_;
+ }
+ $tochan->{pingave} = $st / @{$tochan->{pingtime}};
+ }
+ }
+ }
+ }
+ }
+ } else {
+ # route down an appropriate thingy
+ $self->route($field[1], $line);
+ }
+ return;
+ }
+ }
+
+ # if get here then rebroadcast the thing with its Hop count decremented (if
+ # there is one). If it has a hop count and it decrements to zero then don't
+ # rebroadcast it.
+ #
+ # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
+ # REBROADCAST!!!!
+ #
+
+ unless ($self->{isolate}) {
+ broadcast_ak1a($line, $self); # send it to everyone but me
+ }