fix eph regex
[spider.git] / perl / DXProt.pm
index 813b89ced4f407e961e9342ebf15563cfa841b51..09c00b26502ff8de7b3edabd54a25e23e3b6a834 100644 (file)
@@ -35,7 +35,7 @@ use Route::Node;
 
 use strict;
 use vars qw($me $pc11_max_age $pc23_max_age
-                       $last_hour %pings %rcmds
+                       $last_hour $last10 %eph  %pings %rcmds
                        %nodehops $baddx $badspotter $badnode $censorpc
                        $allowzero $decode_dk0wcy $send_opernam @checklist);
 
@@ -52,6 +52,7 @@ $censorpc = 1;                                        # Do a BadWords::check on text fields and reject things
 $baddx = new DXHash "baddx";
 $badspotter = new DXHash "badspotter";
 $badnode = new DXHash "badnode";
+$last10 = time;
 
 @checklist = 
 (
@@ -191,6 +192,12 @@ sub init
 sub new 
 {
        my $self = DXChannel::alloc(@_);
+
+       # add this node to the table, the values get filled in later
+       my $pkg = shift;
+       my $call = shift;
+       $main::routeroot->add($call, '0000', Route::here(1)) if $call ne $main::mycall;
+
        return $self;
 }
 
@@ -252,9 +259,6 @@ sub start
        # send info to all logged in thingies
        $self->tell_login('loginn');
 
-       # add this node to the table, the values get filled in later
-       $main::routeroot->add($call);
-
        Log('DXProt', "$call connected");
 }
 
@@ -526,24 +530,21 @@ sub normal
 
                        # general checks
                        my $dxchan;
+                       my $ncall = $field[1];
                        my $newline = "PC16^";
                        
-                       if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
+                       if ($ncall eq $main::mycall) {
                                dbg('chan', "PCPROT: trying to alter config on this node from outside!");
                                return;
                        }
-                       if ($field[2] eq $main::myalias && DXChannel->get($field[1])) {
-                               dbg('chan', "PCPROT: trying to connect sysop from outside!");
+                       $dxchan = DXChannel->get($ncall);
+                       if ($dxchan && $dxchan ne $self) {
+                               dbg('chan', "PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!");
                                return;
                        }
-                       if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
-                               dbg('chan', "PCPROT: $field[1] connected locally");
-                               return;
-                       }
-
-                       my $node = Route::Node::get($field[1]); 
-                       unless ($node) {
-                               dbg('chan', "PCPROT: Node $field[1] not in config");
+                       my $parent = Route::Node::get($ncall); 
+                       unless ($parent) {
+                               dbg('chan', "PCPROT: Node $ncall not in config");
                                return;
                        }
                        my $i;
@@ -553,14 +554,22 @@ sub normal
                                next unless $call && $conf && defined $here && is_callsign($call);
                                $conf = $conf eq '*';
 
-                               push @rout, $node->add_user($call, Route::here($here)|Route::conf($conf));
+                               my $r = Route::User::get($call);
+                               my $flags = Route::here($here)|Route::conf($conf);
+                               
+                               if ($r && $r->flags != $flags) {
+                                       $r->$flags($flags);
+                                       push @rout, $r;
+                               } elsif (!$r) {
+                                       push @rout, $parent->add_user($call, $flags);
+                               }
                                
                                # 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);
+                               $user->homenode($parent->call) if !$user->homenode;
+                               $user->node($parent->call);
                                $user->lastin($main::systime) unless DXChannel->get($call);
                                $user->put;
                        }
@@ -569,34 +578,31 @@ sub normal
                        # queue up any messages (look for privates only)
                        DXMsg::queue_msg(1) if $self->state eq 'normal';     
 
-                       dbg('route', "B/C PC16 on $field[1] for: " . join(',', map{$_->call} @rout)) if @rout;
-                       $self->route_pc16($node, @rout) if @rout;
+                       $self->route_pc16($parent, @rout) if @rout;
                        return;
                }
                
                if ($pcno == 17) {              # remove a user
                        my $dxchan;
-                       if ($field[1] eq $main::mycall || $field[2] eq $main::mycall) {
+                       my $ncall = $field[2];
+                       my $ucall = $field[1];
+                       if ($ncall eq $main::mycall) {
                                dbg('chan', "PCPROT: trying to alter config on this node from outside!");
                                return;
                        }
-                       if ($field[1] eq $main::myalias && DXChannel->get($field[1])) {
-                               dbg('chan', "PCPROT: trying to disconnect sysop from outside!");
+                       $dxchan = DXChannel->get($ncall);
+                       if ($dxchan && $dxchan ne $self) {
+                               dbg('chan', "PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!");
                                return;
                        }
-                       if ($dxchan = DXChannel->get($field[1])) {
-                               dbg('chan', "PCPROT: $field[1] connected locally");
+                       my $parent = Route::Node::get($ncall);
+                       unless ($parent) {
+                               dbg('chan', "PCPROT: Route::Node $ncall not in config");
                                return;
                        }
-
-                       my $node = Route::Node::get($field[2]);
-                       unless ($node) {
-                               dbg('chan', "PCPROT: Route::Node $field[2] not in config");
-                               return;
-                       }
-                       my @rout = $node->del_user($field[1]);
-                       dbg('route', "B/C PC17 on $field[2] for: $field[1]");
-                       $self->route_pc17($node, @rout) if @rout;
+                       my $r = Route::User::get($ucall);
+                       my @rout = $parent->del_user($ucall) if $r;
+                       $self->route_pc17($parent, @rout) if @rout;
                        return;
                }
                
@@ -604,12 +610,13 @@ sub normal
                        $self->state('init');   
 
                        # first clear out any nodes on this dxchannel
-                       my $node = Route::Node::get($self->{call});
+                       my $parent = Route::Node::get($self->{call});
                        my @rout;
-                       for ($node->nodes) {
-                               push @rout, $_->del_node;
+                       for ($parent->nodes) {
+                               my $r = Route::Node::get($_);
+                               push @rout, $r->del_node if $r;
                        }
-                       $self->route_pc21(@rout, $node);
+                       $self->route_pc21(@rout, $parent);
                        $self->send_local_config();
                        $self->send(pc20());
                        return;             # we don't pass these on
@@ -621,7 +628,7 @@ sub normal
 
                        # new routing list
                        my @rout;
-                       my $node = Route::Node::get($self->{call});
+                       my $parent = Route::Node::get($self->{call});
 
                        # parse the PC19
                        for ($i = 1; $i < $#field-1; $i += 4) {
@@ -636,13 +643,24 @@ sub normal
                                next if length $call < 3; # min 3 letter callsigns
 
                                # update it if required
-                               if ($node->call eq $call && !$node->version) {
-                                       $node->version($ver);
-                                       $node->flags(Route::here($here)|Route::conf($conf));
-                                       push @rout, $node;
-                               } elsif ($node->call ne $call) {
-                                       my $r = $node->add($call, $ver, Route::here($here)|Route::conf($conf));
+                               my $r;
+                               my $flags = Route::here($here)|Route::conf($conf);
+                               if ($parent->call eq $call && ($parent->version ne $ver || $parent->flags != $flags)) {
+                                       $parent->version($ver);
+                                       $parent->flags($flags);
+                                       push @rout, $parent;
+                               } elsif ($parent->call ne $call) {
+                                       next if $call eq $main::mycall || $call eq $self->{call};
+
+                                       my $r = $parent->add($call, $ver, Route::here($here)|Route::conf($conf));
                                        push @rout, $r if $r;
+                               } else {
+                                       $r = Route::Node::get($call);
+                                       if ($r && ($r->version ne $ver || $r->flags != $flags)) {
+                                               $r->version($ver);
+                                               $r->flags(Route::here($here)|Route::conf($conf));
+                                               push @rout, $r;
+                                       }
                                }
 
                                # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
@@ -663,8 +681,6 @@ sub normal
                                $user->put;
                        }
 
-                       dbg('route', "B/C PC19 for: " . join(',', map{$_->call} @rout)) if @rout;
-                       
                        $self->route_pc19(@rout) if @rout;
                        return;
                }
@@ -679,7 +695,7 @@ sub normal
                if ($pcno == 21) {              # delete a cluster from the list
                        my $call = uc $field[1];
                        my @rout;
-                       my $node = Route::Node::get($call);
+                       my $parent = Route::Node::get($self->{call});
                        
                        if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
                                if ($call eq $self->{call}) {
@@ -688,8 +704,8 @@ sub normal
                                }
 
                                # routing objects
-                               if ($node) {
-                                       push @rout, $node->del_node($call);
+                               if ($parent) {
+                                       push @rout, $parent->del_node($call);
                                } else {
                                        dbg('chan', "PCPROT: Route::Node $call not in config");
                                }
@@ -697,8 +713,6 @@ sub normal
                                dbg('chan', "PCPROT: I WILL _NOT_ be disconnected!");
                                return;
                        }
-                       dbg('route', "B/C PC21 for: " . join(',', (map{$_->call} @rout))) if @rout;
-                       
                        $self->route_pc21(@rout) if @rout;
                        return;
                }
@@ -1062,9 +1076,13 @@ sub normal
        # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
        #        REBROADCAST!!!!
        #
-        
-       unless ($self->{isolate}) {
-               broadcast_ak1a($line, $self); # send it to everyone but me
+
+       if (eph_dup($line)) {
+               dbg('chan', "PCPROT: Ephemeral dup, dropped");
+       } else {
+               unless ($self->{isolate}) {
+                       broadcast_ak1a($line, $self); # send it to everyone but me
+               }
        }
 }
 
@@ -1085,7 +1103,9 @@ sub process
                # send a pc50 out on this channel
                $dxchan->{pc50_t} = $main::systime unless exists $dxchan->{pc50_t};
                if ($t >= $dxchan->{pc50_t} + $DXProt::pc50_interval) {
-                       $dxchan->send(pc50(scalar DXChannel::get_all_users));
+                       my $s = pc50(scalar DXChannel::get_all_users);
+                       eph_dup($s);
+                       $dxchan->send($s);
                        $dxchan->{pc50_t} = $t;
                } 
 
@@ -1100,14 +1120,17 @@ sub process
                        }
                }
        }
+
+       # every ten seconds
+       if ($t - $last10 >= 10) {       
+               # clean out ephemera 
+
+               eph_clean();
+
+               $last10 = $t;
+       }
        
-       my $key;
-       my $val;
-       my $cutoff;
        if ($main::systime - 3600 > $last_hour) {
-#              Spot::process;
-#              Geomag::process;
-#              AnnTalk::process;
                $last_hour = $main::systime;
        }
 }
@@ -1369,27 +1392,33 @@ sub send_local_config
        my $self = shift;
        my $n;
        my @nodes;
-       my @localcalls;
-       my @remotecalls;
-               
+       my @localnodes;
+       my @remotenodes;
+
+       dbg('trace', 'DXProt::send_local_config');
+       
        # send our nodes
        if ($self->{isolate}) {
-               @localcalls = ( $main::mycall );
+               @localnodes = ( $main::routeroot );
        } else {
                # create a list of all the nodes that are not connected to this connection
                # and are not themselves isolated, this to make sure that isolated nodes
         # don't appear outside of this node
-               my @dxchan = grep { $_->call ne $main::mycall && $_->call ne $self->{call} && !$_->{isolate} } DXChannel::get_all_nodes();
-               @localcalls = map { $_->{call} } @dxchan if @dxchan;
-               @remotecalls = map {my $r = Route::Node::get($_); $r ? $r->rnodes(@localcalls, $main::mycall, $self->{call}) : () } @localcalls if @localcalls;
-               unshift @localcalls, $main::mycall;
+               my @dxchan = grep { $_->call ne $main::mycall && $_->call ne $self->{call} } DXChannel::get_all_nodes();
+               @localnodes = map { Route::Node::get($_->{call}) or die "connot find node $_->{call}" } @dxchan if @dxchan;
+               my @intcalls = map { $_->nodes } @localnodes if @localnodes;
+               my $ref = Route::Node::get($self->{call});
+               my @rnodes = $ref->nodes;
+               for my $n (@intcalls) {
+                       push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
+               }
+               unshift @localnodes, $main::routeroot;
        }
-       @nodes = map {my $r = Route::Node::get($_); $r ? $r : ()} (@localcalls, @remotecalls);
        
-       send_route($self, \&pc19, scalar @nodes, @nodes);
+       send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
        
        # get all the users connected on the above nodes and send them out
-       foreach $n (@nodes) {
+       foreach $n (@localnodes, @remotenodes) {
                send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
        }
 }
@@ -1690,7 +1719,7 @@ sub send_route
                                $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
                                next unless $routeit;
                        }
-                       $self->send($routeit) unless $self->{isolate} || $self->{isolate};
+                       $self->send($routeit);
                }
        }
 }
@@ -1734,5 +1763,27 @@ sub route_pc21
        broadcast_route($self, \&pc21, scalar @_, @_);
 }
 
+sub eph_dup
+{
+       my $s = shift;
+
+       # chop the end off
+       $s =~ s/\^H\d\d?\^?~?$//;
+       return 1 if exists $eph{$s};
+       $eph{$s} = $main::systime;
+       return undef;
+}
+
+sub eph_clean
+{
+       my ($key, $val);
+       
+       while (($key, $val) = each %eph) {
+               if ($main::systime - $val > 90) {
+                       delete $eph{$key};
+               }
+       }
+}
+
 1;
 __END__