@ISA = qw(DXChannel);
-use strict;
-
use DXUtil;
use DXChannel;
use DXUser;
use DXM;
use DXCluster;
+use DXProtVars;
+use DXCommandmode;
+use DXLog;
+use Spot;
+use DXProtout;
+use Carp;
+
+use strict;
+use vars qw($me $pc11_max_age $pc11_dup_age %dup $last_hour);
+
+$me = undef; # the channel id for this cluster
+$pc11_max_age = 1*3600; # the maximum age for an incoming 'real-time' pc11
+$pc11_dup_age = 24*3600; # the maximum time to keep the dup list for
+%dup = (); # the pc11 and 26 dup hash
+$last_hour = time; # last time I did an hourly periodic update
+
+sub init
+{
+ my $user = DXUser->get($main::mycall);
+ $me = DXProt->new($main::mycall, undef, $user);
+# $me->{sort} = 'M'; # M for me
+}
+
+#
+# obtain a new connection this is derived from dxchannel
+#
+
+sub new
+{
+ my $self = DXChannel::alloc(@_);
+ $self->{sort} = 'A'; # in absence of how to find out what sort of an object I am
+ return $self;
+}
# this is how a pc connection starts (for an incoming connection)
# issue a PC38 followed by a PC18, then wait for a PC20 (remembering
# all the crap that comes between).
sub start
{
- my $self = shift;
+ my ($self, $line) = shift;
my $call = $self->call;
- # set the channel sort
- $self->sort('A');
+ # remember type of connection
+ $self->{consort} = $line;
# set unbuffered
- self->send_now('B',"0");
+ $self->send_now('B',"0");
- # do we have him connected on the cluster somewhere else?
- $self->send(pc38());
+ # send initialisation string
+ $self->send(pc38()) if DXNode->get_all();
$self->send(pc18());
- $self->{state} = 'incoming';
+ $self->state('init');
+ $self->pc50_t(time);
+ Log('DXProt', "$call connected");
}
#
#
sub normal
{
+ my ($self, $line) = @_;
+ my @field = split /[\^\~]/, $line;
+
+ # ignore any lines that don't start with PC
+ return if !$field[0] =~ /^PC/;
+
+ # process PC frames
+ my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
+ return if $pcno < 10 || $pcno > 51;
+
+ SWITCH: {
+ if ($pcno == 10) { # incoming talk
+
+ # is it for me or one of mine?
+ my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
+ if ($call eq $main::mycall || grep $_ eq $call, get_all_user_calls()) {
+
+ # yes, it is
+ my $text = unpad($field[3]);
+ my $ref = DXChannel->get($call);
+ $ref->send("$call de $field[1]: $text") if $ref;
+ } else {
+ route($field[2], $line); # relay it on its way
+ }
+ return;
+ }
+
+ if ($pcno == 11 || $pcno == 26) { # dx spot
+
+ # if this is a 'nodx' node then ignore it
+ last SWITCH if grep $field[7] =~ /^$_/, @DXProt::nodx_node;
+
+ # convert the date to a unix date
+ my $d = cltounix($field[3], $field[4]);
+ return if !$d || ($pcno == 11 && $d < $main::systime - $pc11_max_age); # bang out (and don't pass on) if date is invalid or the spot is too old
+
+ # strip off the leading & trailing spaces from the comment
+ my $text = unpad($field[5]);
+
+ # store it away
+ my $spotter = $field[6];
+ $spotter =~ s/-\d+$//o; # strip off the ssid from the spotter
+ # do some de-duping
+ my $dupkey = "$field[1]$field[2]$d$text$field[6]";
+ return if $dup{$dupkey};
+ $dup{$dupkey} = $d;
+
+ my $spot = Spot::add($field[1], $field[2], $d, $text, $spotter);
+
+ # send orf to the users
+ if ($spot && $pcno == 11) {
+ my $buf = Spot::formatb($field[1], $field[2], $d, $text, $spotter);
+ broadcast_users("$buf\a\a");
+ }
+
+ last SWITCH;
+ }
+
+ if ($pcno == 12) { # announces
+
+ if ($field[2] eq '*' || $field[2] eq $main::mycall) {
+
+ # strip leading and trailing stuff
+ my $text = unpad($field[3]);
+ my $target;
+ my @list;
+
+ if ($field[4] eq '*') { # sysops
+ $target = "To Sysops";
+ @list = map { $_->priv >= 5 ? $_ : () } get_all_users();
+ } elsif ($field[4] gt ' ') { # speciality list handling
+ my ($name) = split /\./, $field[4];
+ $target = "To $name"; # put the rest in later (if bothered)
+ }
+
+ $target = "WX" if $field[6] eq '1';
+ $target = "To All" if !$target;
+
+ if (@list > 0) {
+ broadcast_list("$target de $field[1]: $text", @list);
+ } else {
+ broadcast_users("$target de $field[1]: $text");
+ }
+
+ return if $field[2] eq $main::mycall; # it's routed to me
+ } else {
+ route($field[2], $line);
+ return; # only on a routed one
+ }
+
+ last SWITCH;
+ }
+
+ if ($pcno == 13) {last SWITCH;}
+ if ($pcno == 14) {last SWITCH;}
+ if ($pcno == 15) {last SWITCH;}
+
+ if ($pcno == 16) { # add a user
+ my $node = DXCluster->get($field[1]);
+ last SWITCH if !$node; # ignore if havn't seen a PC19 for this one yet
+ my $i;
+
+ for ($i = 2; $i < $#field; $i++) {
+ my ($call, $confmode, $here) = $field[$i] =~ /^(\w+) (-) (\d)/o;
+ next if length $call < 3;
+ next if !$confmode;
+ $call = uc $call;
+ $call =~ s/-\d+$//o; # remove ssid
+ next if DXCluster->get($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
+ my $user = DXUser->get_current($call);
+ $user = DXUser->new($call) if !$user;
+ $user->node($node->call) if !$user->node;
+ $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 $ref = DXCluster->get($field[1]);
+ $ref->del() if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 18) { # link request
+ $self->send_local_config();
+ $self->send(pc20());
+ $self->state('init');
+ last SWITCH;
+ }
+
+ if ($pcno == 19) { # incoming cluster list
+ my $i;
+ for ($i = 1; $i < $#field-1; $i += 4) {
+ my $here = $field[$i];
+ my $call = uc $field[$i+1];
+ my $confmode = $field[$i+2] eq '*';
+ my $ver = $field[$i+3];
+
+ # now check the call over
+ next if DXCluster->get($call); # we already have this
+
+ # check for sane parameters
+ next if $ver < 5000; # only works with version 5 software
+ next if length $call < 3; # min 3 letter callsigns
+ DXNode->new($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;
+ }
+
+ # queue up any messages
+ DXMsg::queue_msg() if $self->state eq 'normal';
+ last SWITCH;
+ }
+
+ if ($pcno == 20) { # send local configuration
+ $self->send_local_config();
+ $self->send(pc22());
+ $self->state('normal');
+
+ # queue mail
+ DXMsg::queue_msg();
+ return;
+ }
+
+ if ($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 $ref = DXCluster->get($call);
+ $ref->del() if $ref;
+ }
+ last SWITCH;
+ }
+
+ if ($pcno == 22) {last SWITCH;}
+
+ if ($pcno == 23 || $pcno == 27) { # WWV info
+ Geomag::update(@field[1..$#field]);
+ last SWITCH;
+ }
+
+ if ($pcno == 24) { # set here status
+ my $call = uc $field[1];
+ $call =~ s/-\d+//o;
+ my $ref = DXCluster->get($call);
+ $ref->here($field[2]) if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 25) {last SWITCH;}
+
+ if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42) { # mail/file handling
+ DXMsg::process($self, $line);
+ return;
+ }
+
+ if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
+ last SWITCH;
+ }
+
+ if ($pcno == 35) { # remote command replies
+ last SWITCH;
+ }
+
+ if ($pcno == 37) {last SWITCH;}
+
+ if ($pcno == 38) { # node connected list from neighbour
+ return;
+ }
+
+ if ($pcno == 39) { # incoming disconnect
+ $self->disconnect();
+ return;
+ }
+
+ if ($pcno == 41) { # user info
+ # add this station to the user database, if required
+ $field[1] =~ s/-\d+$//o;
+ my $user = DXUser->get_current($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 ($field[2] == 3) {
+ my ($latd, $latm, $latl, $longd, $longm, $longl) = split /\s+/, $field[3];
+ $longd += ($longm/60);
+ $longd = 0-$longd if (uc $longl) eq 'W';
+ $user->long($longd);
+ $latd += ($latm/60);
+ $latd = 0-$latd if (uc $latl) eq 'S';
+ $user->lat($latd);
+ } elsif ($field[2] == 4) {
+ $user->node($field[3]);
+ }
+ $user->put;
+ last SWITCH;
+ }
+ if ($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 == 49) {last SWITCH;}
+
+ if ($pcno == 50) { # keep alive/user list
+ my $ref = DXCluster->get($field[1]);
+ $ref->update_users($field[2]) if $ref;
+ last SWITCH;
+ }
+
+ if ($pcno == 51) { # incoming ping requests/answers
+
+ # is it for us?
+ if ($field[1] eq $main::mycall) {
+ my $flag = $field[3];
+ $flag ^= 1;
+ $self->send($self->pc51($field[2], $field[1], $flag));
+ } else {
+ # route down an appropriate thingy
+ route($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!!!!
+ #
+
+ my $hops;
+ if (($hops) = $line =~ /H(\d+)\^\~?$/o) {
+ my $newhops = $hops - 1;
+ if ($newhops > 0) {
+ $line =~ s/\^H$hops(\^\~?)$/\^H$newhops$1/; # change the hop count
+ broadcast_ak1a($line, $self); # send it to everyone but me
+ }
+ }
}
#
my $chan;
foreach $chan (@chan) {
- next if $chan->sort ne 'A';
+ next if !$chan->is_ak1a();
# send a pc50 out on this channel
- if ($t >= $chan->t + $main::pc50_interval) {
+ if ($t >= $chan->pc50_t + $DXProt::pc50_interval) {
$chan->send(pc50());
- $chan->t($t);
+ $chan->pc50_t($t);
}
}
+
+ my $key;
+ my $val;
+ my $cutoff;
+ if ($main::systime - 3600 > $last_hour) {
+ $cutoff = $main::systime - $pc11_dup_age;
+ while (($key, $val) = each %dup) {
+ delete $dup{$key} if $val < $cutoff;
+ }
+ $last_hour = $main::systime;
+ }
}
#
#
sub finish
{
+ my $self = shift;
+ my $ref = DXCluster->get($self->call);
+
+ # unbusy and stop and outgoing mail
+ my $mref = DXMsg::get_busy($self->call);
+ $mref->stop_msg($self) 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();
+ my $node;
+ foreach $node (@gonenodes) {
+ next if $node->call eq $self->call;
+ broadcast_ak1a(pc21($node->call, 'Gone'), $self); # done like this 'cos DXNodes don't have a pc21 method
+ $node->del();
+ }
+
+ # now broadcast to all other ak1a nodes that I have gone
+ broadcast_ak1a(pc21($self->call, 'Gone.'), $self);
+ Log('DXProt', $self->call . " Disconnected");
+ $ref->del() if $ref;
}
-
+
#
# some active measures
#
-sub broadcast
+sub send_local_config
{
- my $s = shift;
- $s = shift if ref $s; # if I have been called $self-> ignore it.
- my @except = @_; # to all channels EXCEPT these (dxchannel refs)
- my @chan = DXChannel->get_all();
- my ($chan, $except);
+ my $self = shift;
+ my $n;
+
+ # send our nodes
+ my @nodes = DXNode::get_all();
-L: foreach $chan (@chan) {
- next if $chan->sort != 'A'; # only interested in ak1a channels
- foreach $except (@except) {
- next L if $except == $chan; # ignore channels in the 'except' list
- }
- chan->send($s); # send it
+ # create a list of all the nodes that are not connected to this connection
+ @nodes = map { $_->dxchan != $self ? $_ : () } @nodes;
+ $self->send($me->pc19(@nodes));
+
+ # get all the users connected on the above nodes and send them out
+ foreach $n (@nodes) {
+ my @users = values %{$n->list};
+ $self->send(DXProt::pc16($n, @users));
}
}
#
-# All the PCxx generation routines
+# route a message down an appropriate interface for a callsign
+#
+# is called route(to, pcline);
#
+sub route
+{
+ my ($call, $line) = @_;
+ my $cl = DXCluster->get($call);
+ if ($cl) {
+ my $hops;
+ my $dxchan = $cl->{dxchan};
+ if (($hops) = $line =~ /H(\d+)\^\~?$/o) {
+ my $newhops = $hops - 1;
+ if ($newhops > 0) {
+ $line =~ s/\^H$hops(\^\~?)$/\^H$newhops$1/; # change the hop count
+ $dxchan->send($line) if $dxchan;
+ }
+ } else {
+ $dxchan->send($line) if $dxchan; # for them wot don't have Hops
+ }
+ }
+}
-sub pc18
+# broadcast a message to all clusters [except those mentioned after buffer]
+sub broadcast_ak1a
{
- return "PC18^wot a load of twaddle^$main::myprot_version^~";
+ my $s = shift; # the line to be rebroadcast
+ my @except = @_; # to all channels EXCEPT these (dxchannel refs)
+ my @chan = get_all_ak1a();
+ my $chan;
+
+ foreach $chan (@chan) {
+ next if grep $chan == $_, @except;
+ $chan->send($s); # send it if it isn't the except list
+ }
+}
+
+# broadcast to all users
+sub broadcast_users
+{
+ my $s = shift; # the line to be rebroadcast
+ my @except = @_; # to all channels EXCEPT these (dxchannel refs)
+ my @chan = get_all_users();
+ my $chan;
+
+ foreach $chan (@chan) {
+ next if grep $chan == $_, @except;
+ $chan->send($s); # send it if it isn't the except list
+ }
}
-# send all the DX clusters I reckon are connected
-sub pc38
+# broadcast to a list of users
+sub broadcast_list
{
- my @list = DXNode->get_all();
- my $list;
- my @nodes;
+ my $s = shift;
+ my $chan;
- foreach $list (@list) {
- push @nodes, $list->call;
+ foreach $chan (@_) {
+ $chan->send($s); # send it
+ }
+}
+
+#
+# gimme all the ak1a nodes
+#
+sub get_all_ak1a
+{
+ my @list = DXChannel->get_all();
+ my $ref;
+ my @out;
+ foreach $ref (@list) {
+ push @out, $ref if $ref->is_ak1a;
+ }
+ return @out;
+}
+
+# return a list of all users
+sub get_all_users
+{
+ my @list = DXChannel->get_all();
+ my $ref;
+ my @out;
+ foreach $ref (@list) {
+ push @out, $ref if $ref->is_user;
}
- return "PC38^" . join(',', @nodes) . "^~";
+ return @out;
}
-sub pc50
+# return a list of all user callsigns
+sub get_all_user_calls
{
- my $n = DXUsers->count;
- return "PC50^$main::mycall^$n^H99^";
+ my @list = DXChannel->get_all();
+ my $ref;
+ my @out;
+ foreach $ref (@list) {
+ push @out, $ref->call if $ref->is_user;
+ }
+ return @out;
}
+#
+# obtain the hops from the list for this callsign and pc no
+#
+
+sub get_hops
+{
+ my ($pcno) = @_;
+ my $hops = $DXProt::hopcount{$pcno};
+ $hops = $DXProt::def_hopcount if !$hops;
+ return "H$hops";
+}
+
+# remove leading and trailing spaces from an input string
+sub unpad
+{
+ my $s = shift;
+ $s =~ s/^\s+|\s+$//;
+ return $s;
+}
1;
__END__
projects / spider.git / blobdiff