added auto ping and obs count to dxchan
[spider.git] / perl / DXProt.pm
index 5bda044a045644a3a8687c2ff4e36828c9958bec..c14c9bbefdc64879402412bac78f826e2a6ff374 100644 (file)
@@ -24,20 +24,25 @@ use DXProtout;
 use DXDebug;
 use Filter;
 use Local;
+use DXDb;
+use Time::HiRes qw(gettimeofday tv_interval);
 
 use Carp;
 
 use strict;
-use vars qw($me $pc11_max_age $pc11_dup_age $pc23_dup_age 
-                       %spotdup %wwvdup $last_hour %pings %rcmds 
+use vars qw($me $pc11_max_age $pc23_max_age $pc11_dup_age $pc23_dup_age
+                       %spotdup %wwvdup $last_hour %pings %rcmds
                        %nodehops @baddx $baddxfn $pc12_dup_age
-                       %anndup);
+                       %anndup $allowzero $pc12_dup_lth $decode_dk0wcy);
 
 $me = undef;                                   # the channel id for this cluster
+$decode_dk0wcy = undef;                        # if set use this callsign to decode announces from the EU WWV data beacon
 $pc11_max_age = 1*3600;                        # the maximum age for an incoming 'real-time' pc11
-$pc11_dup_age = 24*3600;               # the maximum time to keep the spot dup list for
-$pc23_dup_age = 24*3600;               # the maximum time to keep the wwv dup list for
+$pc23_max_age = 1*3600;                        # the maximum age for an incoming 'real-time' pc23
+$pc11_dup_age = 3*3600;                        # the maximum time to keep the spot dup list for
+$pc23_dup_age = 3*3600;                        # the maximum time to keep the wwv dup list for
 $pc12_dup_age = 24*3600;               # the maximum time to keep the ann dup list for
+$pc12_dup_lth = 60;                            # the length of ANN text to save for deduping 
 %spotdup = ();                             # the pc11 and 26 dup hash 
 %wwvdup = ();                              # the pc23 and 27 dup hash
 %anndup = ();                               # the PC12 dup hash
@@ -47,6 +52,7 @@ $last_hour = time;                            # last time I did an hourly periodic update
 %nodehops = ();                 # node specific hop control
 @baddx = ();                    # list of illegal spotted callsigns
 
+
 $baddxfn = "$main::data/baddx.pl";
 
 sub init
@@ -111,13 +117,14 @@ sub start
        $self->{consort} = $line;       # save the connection type
        $self->{here} = 1;
 
-       # get the filters
-       $self->{spotfilter} = Filter::read_in('spots', $call);
-       $self->{wwvfilter} = Filter::read_in('wwv', $call);
-       $self->{annfilter} = Filter::read_in('ann', $call);
+       # get the INPUT filters (these only pertain to Clusters)
+       $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
+       $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
+       $self->{inannfilter} = Filter::read_in('ann', $call, 1);
        
-       # set unbuffered
+       # set unbuffered and no echo
        $self->send_now('B',"0");
+       $self->send_now('E',"0");
        
        # send initialisation string
        if (!$self->{outbound}) {
@@ -126,6 +133,11 @@ sub start
        }
        $self->state('init');
        $self->pc50_t(time);
+       $self->pingint($user->pingint || 3*60);
+       $self->nopings(3);
+       $self->lastping($main::systime);
+       $self->pingtime(0);
+       $self->pingrec(0);
 
        Log('DXProt', "$call connected");
 }
@@ -148,7 +160,13 @@ sub normal
        my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
        return unless $pcno;
        return if $pcno < 10 || $pcno > 51;
-       
+
+       # dump bad protocol messages unless it is a PC29
+       if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
+               dbg('chan', "CORRUPT protocol message - dumped");
+               return;
+       }
+
        # local processing 1
        my $pcr;
        eval {
@@ -171,15 +189,26 @@ sub normal
                                my $ref = DXChannel->get($call);
                                $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
                        } else {
-                               route($field[2], $line); # relay it on its way
+                               $self->route($field[2], $line); # relay it on its way
                        }
                        return;
                }
                
                if ($pcno == 11 || $pcno == 26) { # dx spot
+
+                       # route 'foreign' pc26s 
+                       if ($pcno == 26) {
+                               if ($field[7] ne $main::mycall) {
+                                       $self->route($field[7], $line);
+                                       return;
+                               }
+                       }
                        
                        # if this is a 'nodx' node then ignore it
-                       last SWITCH if grep $field[7] =~ /^$_/,  @DXProt::nodx_node;
+                       if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
+                               dbg('chan', "Bad DXNode, dropped");
+                               return;
+                       }
                        
                        # convert the date to a unix date
                        my $d = cltounix($field[3], $field[4]);
@@ -194,7 +223,7 @@ sub normal
                        
                        # store it away
                        my $spotter = $field[6];
-                       $spotter =~ s/-\d+$//o; # strip off the ssid from the spotter
+                       $spotter =~ s/-[\@\d]+$//o;     # strip off the ssid from the spotter
                        
                        # do some de-duping
                        my $freq = $field[1] - 0;
@@ -211,6 +240,12 @@ sub normal
                                dbg('chan', "Bad DX spot, ignored");
                                return;
                        }
+
+                       # are any of the crucial fields invalid?
+            if ($field[2] =~ /[a-z]/ || $field[6] =~ /[a-z]/ || $field[7] =~ /[a-z]/) {
+                               dbg('chan', "Spot contains lower case callsigns, rejected");
+                               return;
+                       }
                        
                        my @spot = Spot::add($freq, $field[2], $d, $text, $spotter, $field[7]);
 
@@ -238,58 +273,40 @@ sub normal
                }
                
                if ($pcno == 12) {              # announces
-                       # announce duplicate checking
-                       my $text = uc unpad($field[3]);
-                       my $dupkey = $field[1].$field[2].$text.$field[4].$field[6];
+                       # announce duplicate checking
+                       my $text = substr(uc unpad($field[3]), 0, $pc12_dup_lth);
+                       my $dupkey = $field[1].$field[2].$text;
                        if ($anndup{$dupkey}) {
                                dbg('chan', "Duplicate Announce ignored\n");
                                return;
                        }
                        $anndup{$dupkey} = $main::systime;
                        
-                       # global ann filtering
-                       my ($filter, $hops) = Filter::it($self->{annfilter}, @field[1..6], $self->{call} ) if $self->{annfilter};
-                       if ($self->{annfilter} && !$filter) {
-                               dbg('chan', "Rejected by filter");
-                               return;
-                       }
-                       
                        if ($field[2] eq '*' || $field[2] eq $main::mycall) {
                                
-                               # strip leading and trailing stuff
-                               my $text = unpad($field[3]);
-                               my $target;
-                               my $to = 'To ';
-                               my @list;
-                               
-                               if ($field[4] eq '*') { # sysops
-                                       $target = "SYSOP";
-                                       @list = map { $_->priv >= 5 ? $_ : () } get_all_users();
-                               } elsif ($field[4] gt ' ') { # speciality list handling
-                                       my ($name) = split /\./, $field[4]; 
-                                       $target = "$name"; # put the rest in later (if bothered) 
-                               } 
-                               
-                               if ($field[6] eq '1') {
-                                       $target = "WX"; 
-                                       $to = '';
+                               # global ann filtering on INPUT
+                               if ($self->{inannfilter}) {
+                                       my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
+                                       unless ($filter) {
+                                               dbg('chan', "Rejected by filter");
+                                               return;
+                                       }
                                }
-                               $target = "All" if !$target;
+
+                               # send it
+                               $self->send_announce($line, @field[1..6]);
                                
-                               if (@list > 0) {
-                                       broadcast_list("$to$target de $field[1]: $text", 'ann', undef, @list);
-                               } else {
-                                       broadcast_users("$target de $field[1]: $text", 'ann', undef);
+                               if ($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;
                                }
-                               Log('ann', $target, $field[1], $text);
                                
-                               return if $field[2] eq $main::mycall; # it's routed to me
                        } else {
-                               route($field[2], $line);
-                               return;                 # only on a routed one
+                               $self->route($field[2], $line);
                        }
                        
-                       last SWITCH;
+                       return;
                }
                
                if ($pcno == 13) {
@@ -304,11 +321,26 @@ sub normal
                
                if ($pcno == 16) {              # add a user
                        my $node = DXCluster->get_exact($field[1]); 
-                       last SWITCH if !$node; # ignore if havn't seen a PC19 for this one yet
-                       last SWITCH unless $node->isa('DXNode');
+                       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;
@@ -325,7 +357,7 @@ sub normal
                                $user = DXUser->new($call) if !$user;
                                $user->homenode($node->call) if !$user->homenode;
                                $user->node($node->call);
-                               $user->lastin($main::systime);
+                               $user->lastin($main::systime) unless DXChannel->get($call);
                                $user->put;
                        }
                        
@@ -335,38 +367,82 @@ sub normal
                }
                
                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());
-                       $self->state('init');   
                        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] eq '*';
+                               my $confmode = $field[$i+2];
                                my $ver = $field[$i+3];
+
+                               $ver = 5400 if !$ver && $allowzero;
                                
                                # now check the call over
-                               next if DXCluster->get_exact($call); # we already have this
+                               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);
-                               $mref->stop_msg($self) if $mref;
+                               $mref->stop_msg($call) if $mref;
                                
                                # add this station to the user database, if required (don't remove SSID from nodes)
                                my $user = DXUser->get_current($call);
@@ -378,12 +454,15 @@ sub normal
                                        $user->homenode($call);
                                        $user->node($call);
                                }
-                               $user->lastin($main::systime);
+                               $user->lastin($main::systime) unless DXChannel->get($call);
                                $user->put;
                        }
                        
-                       # queue up any messages
-                       DXMsg::queue_msg(0) if $self->state eq 'normal';
+                       return if $newline eq "PC19^";
+
+                       # add hop count 
+                       $newline .=  get_hops(19) . "^";
+                       $line = $newline;
                        last SWITCH;
                }
                
@@ -391,63 +470,81 @@ sub normal
                        $self->send_local_config();
                        $self->send(pc22());
                        $self->state('normal');
-                       
-                       # queue mail
-                       DXMsg::queue_msg(0);
-
                        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 $ref = DXCluster->get_exact($call);
-                               $ref->del() if $ref;
+                               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) {
                        $self->state('normal');
-                       
-                       # queue mail
-                       DXMsg::queue_msg(0);
                        return;
                }
-               
+                               
                if ($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;
                        my $dupkey = "$d.$sfi$k$i";
                        if ($wwvdup{$dupkey}) {
                                dbg('chan', "Dup WWV Spot ignored\n");
                                return;
                        }
-                       if ($d > $main::systime + 900 || $field[2] < 0 || $field[2] > 23) {
+                       if (($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;
                        }
                        $wwvdup{$dupkey} = $d;
                        $field[6] =~ s/-\d+$//o;            # remove spotter's ssid
                
-                       my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..$#field]);
+                       my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 
-                       my $r;
+                       my $rep;
                        eval {
-                               $r = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..$#field]);
+                               $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
                        };
 #                      dbg('local', "Local::wwv2 error $@") if $@;
-                       return if $r;
+                       return if $rep;
 
                        # DON'T be silly and send on PC27s!
                        return if $pcno == 27;
 
-                       # broadcast to the eager users
-                       broadcast_users("WWV de $field[7] <$field[2]>:   SFI=$sfi, A=$k, K=$i, $field[6]", 'wwv', $wwv );
-                       last SWITCH;
+                       # broadcast to the eager world
+                       send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
+                       return;
                }
                
                if ($pcno == 24) {              # set here status
@@ -458,8 +555,12 @@ sub normal
                }
                
                if ($pcno == 25) {      # merge request
-                       unless ($field[1] eq $main::mycall) {
-                               dbg('chan', "merge request to $field[1] from $field[2] ignored");
+                       if ($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;
                        }
 
@@ -467,10 +568,10 @@ sub normal
                        
                        # spots
                        if ($field[3] > 0) {
-                               my @in = reverse Spot::search(1, undef, undef, 0, $field[3]-1);
+                               my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
                                my $in;
                                foreach $in (@in) {
-                                       $self->send(pc26(@{$in}[0..4], $in->[7]));
+                                       $self->send(pc26(@{$in}[0..4], $field[2]));
                                }
                        }
 
@@ -479,14 +580,18 @@ sub normal
                                my @in = reverse Geomag::search(0, $field[4], time, 1);
                                my $in;
                                foreach $in (@in) {
-                                       $self->send(pc27(@{$in}));
+                                       $self->send(pc27(@{$in}[0..5], $field[2]));
                                }
                        }
                        return;
                }
-               
+
                if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
-                       DXMsg::process($self, $line);
+                       if ($pcno == 49 || $field[1] eq $main::mycall) {
+                               DXMsg::process($self, $line);
+                       } else {
+                               $self->route($field[1], $line);
+                       }
                        return;
                }
                
@@ -498,7 +603,10 @@ sub normal
                                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:$_"));
@@ -512,7 +620,7 @@ sub normal
                                        $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
                                }
                        } else {
-                               route($field[1], $line);
+                               $self->route($field[1], $line);
                        }
                        return;
                }
@@ -526,15 +634,13 @@ sub normal
                                        delete $rcmds{$field[2]} if !$dxchan;
                                }
                        } else {
-                               route($field[1], $line);
+                               $self->route($field[1], $line);
                        }
                        return;
                }
                
-               if ($pcno == 37) {
-                       last SWITCH;
-               }
-               
+               # for pc 37 see 44 onwards
+
                if ($pcno == 38) {              # node connected list from neighbour
                        return;
                }
@@ -571,25 +677,18 @@ sub normal
                if ($pcno == 43) {
                        last SWITCH;
                }
-               if ($pcno == 44) {
-                       last SWITCH;
-               }
-               if ($pcno == 45) {
-                       last SWITCH;
-               }
-               if ($pcno == 46) {
-                       last SWITCH;
-               }
-               if ($pcno == 47) {
-                       last SWITCH;
-               }
-               if ($pcno == 48) {
-                       last SWITCH;
+               if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47) {
+                       DXDb::process($self, $line);
+                       return;
                }
                
                if ($pcno == 50) {              # keep alive/user list
-                       my $ref = DXCluster->get_exact($field[1]);
-                       $ref->update_users($field[2]) if $ref;                  
+                       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;
                }
                
@@ -604,15 +703,29 @@ sub normal
                                        # it's a reply, look in the ping list for this one
                                        my $ref = $pings{$field[2]};
                                        if ($ref) {
-                                               my $r = shift @$ref;
-                                               my $dxchan = DXChannel->get($r->{call});
-                                               $dxchan->send($dxchan->msg('pingi', $field[2], atime($main::systime), $main::systime - $r->{t})) if $dxchan;
+                                               while (@$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; 
+                                                               $dxchan->send($dxchan->msg('pingi', $field[2], $s))
+                                                       } elsif ($dxchan->is_ak1a) {
+                                                               my $tochan =  DXChannel->get($field[2]);
+                                                               if ($tochan) {
+                                                                       $tochan->nopings(3); # pump up the timer
+                                                                       $tochan->{pingtime} += $t;
+                                                                       $tochan->{pingrec} += 1;
+                                                                       $tochan->{pingave} = $tochan->{pingtime} / $tochan->{pingrec};
+                                                               }
+                                                       } 
+                                               }
                                        }
                                }
-                               
                        } else {
                                # route down an appropriate thingy
-                               route($field[1], $line);
+                               $self->route($field[1], $line);
                        }
                        return;
                }
@@ -626,7 +739,7 @@ sub normal
         #        REBROADCAST!!!!
         #
         
-       if (!$self->{isolate}) {
+       unless ($self->{isolate}) {
                broadcast_ak1a($line, $self); # send it to everyone but me
        }
 }
@@ -649,6 +762,17 @@ sub process
                if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
                        $dxchan->send(pc50());
                        $dxchan->pc50_t($t);
+               } 
+
+               # send a ping out on this channel
+               if ($t >= $dxchan->pingint + $dxchan->lastping) {
+                       if ($dxchan->nopings <= 0) {
+                               $dxchan->disconnect;
+                       } else {
+                               addping($main::mycall, $dxchan->call);
+                               $dxchan->nopings($dxchan->nopings - 1);
+                               $dxchan->lastping($t);
+                       }
                }
        }
        
@@ -683,7 +807,7 @@ sub finish
        
        # unbusy and stop and outgoing mail
        my $mref = DXMsg::get_busy($call);
-       $mref->stop_msg($self) if $mref;
+       $mref->stop_msg($call) if $mref;
        
        # broadcast to all other nodes that all the nodes connected to via me are gone
        my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
@@ -699,7 +823,7 @@ sub finish
        delete $pings{$call};
        
        # now broadcast to all other ak1a nodes that I have gone
-       broadcast_ak1a(pc21($call, 'Gone.'), $self);
+       broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
        
        Log('DXProt', $call . " Disconnected");
        $ref->del() if $ref;
@@ -719,7 +843,13 @@ sub send_dx_spot
        # taking into account filtering and so on
        foreach $dxchan (@dxchan) {
                my $routeit;
-               my ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} ) if $dxchan->{spotfilter};
+               my ($filter, $hops);
+
+               if ($dxchan->{spotfilter}) {
+                   ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
+                       next unless $filter;
+               }
+               
                if ($dxchan->is_ak1a) {
                        next if $dxchan == $self;
                        if ($hops) {
@@ -733,12 +863,123 @@ sub send_dx_spot
                                $dxchan->send($routeit) if $routeit;
                        } else {
                                $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
-                               
                        }
-               } elsif ($dxchan->is_user) {
+               } elsif ($dxchan->is_user && $dxchan->{dx}) {
                        my $buf = Spot::formatb($_[0], $_[1], $_[2], $_[3], $_[4]);
-                       $buf .= "\a\a" if $dxchan->beep;
-                       $dxchan->send($buf) if !$hops || ($hops && $filter);
+                       $buf .= "\a\a" if $dxchan->{beep};
+                       if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+                               $dxchan->send($buf);
+                       } else {
+                               $dxchan->delay($buf);
+                       }
+               }                                       
+       }
+}
+
+sub send_wwv_spot
+{
+       my $self = shift;
+       my $line = shift;
+       my @dxchan = DXChannel->get_all();
+       my $dxchan;
+       
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               my $routeit;
+               my ($filter, $hops);
+
+               if ($dxchan->{spotfilter}) {
+                        ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
+                        next unless $filter;
+               }
+               if ($dxchan->is_ak1a) {
+                       next if $dxchan == $self;
+                       if ($hops) {
+                               $routeit = $line;
+                               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+                       } else {
+                               $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
+                               next unless $routeit;
+                       }
+                       if ($filter) {
+                               $dxchan->send($routeit) if $routeit;
+                       } else {
+                               $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
+                               
+                       }
+               } elsif ($dxchan->is_user && $dxchan->{wwv}) {
+                       my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
+                       $buf .= "\a\a" if $dxchan->{beep};
+                       if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+                               $dxchan->send($buf);
+                       } else {
+                               $dxchan->delay($buf);
+                       }
+               }                                       
+       }
+}
+
+# send an announce
+sub send_announce
+{
+       my $self = shift;
+       my $line = shift;
+       my @dxchan = DXChannel->get_all();
+       my $dxchan;
+       my $text = unpad($_[2]);
+       my $target;
+       my $to = 'To ';
+                               
+       if ($_[3] eq '*') {     # sysops
+               $target = "SYSOP";
+       } elsif ($_[3] gt ' ') { # speciality list handling
+               my ($name) = split /\./, $_[3]; 
+               $target = "$name"; # put the rest in later (if bothered) 
+       } 
+       
+       if ($_[5] eq '1') {
+               $target = "WX"; 
+               $to = '';
+       }
+       $target = "All" if !$target;
+       
+       Log('ann', $target, $_[0], $text);
+
+       # send it if it isn't the except list and isn't isolated and still has a hop count
+       # taking into account filtering and so on
+       foreach $dxchan (@dxchan) {
+               my $routeit;
+               my ($filter, $hops);
+
+               if ($dxchan->{annfilter}) {
+                       ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
+                       next unless $filter;
+               } 
+               if ($dxchan->is_ak1a && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
+                       next if $dxchan == $self;
+                       if ($hops) {
+                               $routeit = $line;
+                               $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
+                       } else {
+                               $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
+                               next unless $routeit;
+                       }
+                       if ($filter) {
+                               $dxchan->send($routeit) if $routeit;
+                       } else {
+                               $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
+                               
+                       }
+               } elsif ($dxchan->is_user && $dxchan->{ann}) {
+                       next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
+                       my $buf = "$to$target de $_[0]: $text";
+                       $buf .= "\a\a" if $dxchan->{beep};
+                       if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
+                               $dxchan->send($buf);
+                       } else {
+                               $dxchan->delay($buf);
+                       }
                }                                       
        }
 }
@@ -791,9 +1032,13 @@ sub send_local_config
 #
 sub route
 {
-       my ($call, $line) = @_;
+       my ($self, $call, $line) = @_;
        my $cl = DXCluster->get_exact($call);
-       if ($cl) {
+       if ($cl) {       # don't route it back down itself
+               if (ref $self && $call eq $self->{call}) {
+                       dbg('chan', "Trying to route back to source, dropped");
+                       return;
+               }
                my $hops;
                my $dxchan = $cl->{dxchan};
                if ($dxchan) {
@@ -932,7 +1177,7 @@ sub get_all_user_calls
 
 sub get_hops
 {
-       my ($pcno) = @_;
+       my $pcno = shift;
        my $hops = $DXProt::hopcount{$pcno};
        $hops = $DXProt::def_hopcount if !$hops;
        return "H$hops";       
@@ -995,13 +1240,13 @@ sub unpad
 sub addping
 {
        my ($from, $to) = @_;
-       my $ref = $pings{$to};
-       $ref = $pings{$to} = [] if !$ref;
+       my $ref = $pings{$to} || [];
        my $r = {};
        $r->{call} = $from;
-       $r->{t} = $main::systime;
-       route($to, pc51($to, $main::mycall, 1));
+       $r->{t} = [ gettimeofday ];
+       route(undef, $to, pc51($to, $main::mycall, 1));
        push @$ref, $r;
+       $pings{$to} = $ref;
 }
 
 # add a rcmd request to the rcmd queues
@@ -1012,7 +1257,7 @@ sub addrcmd
        $r->{call} = $from;
        $r->{t} = $main::systime;
        $r->{cmd} = $cmd;
-       route($to, pc34($main::mycall, $to, $cmd));
+       route(undef, $to, pc34($main::mycall, $to, $cmd));
        $rcmds{$to} = $r;
 }
 1;