+ my ($self, $line) = @_;
+ my @field = split /\^/, $line;
+ return unless @field;
+
+ pop @field if $field[-1] eq '~';
+
+# print join(',', @field), "\n";
+
+
+ # process PC frames, this will fail unless the frame starts PCnn
+ my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
+ return unless $pcno;
+ return if $pcno < 10 || $pcno > 99;
+
+ # check for and dump bad protocol messages
+ my $n = check($pcno, @field);
+ if ($n) {
+ dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
+ return;
+ }
+
+ # local processing 1
+ my $pcr;
+ eval {
+ $pcr = Local::pcprot($self, $pcno, @field);
+ };
+# dbg("Local::pcprot error $@") if isdbg('local') if $@;
+ return if $pcr;
+
+ SWITCH: {
+ if ($pcno == 10) { # incoming talk
+
+ # will we allow it at all?
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($field[3])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # is it for me or one of mine?
+ my ($to, $via, $call, $dxchan);
+ if ($field[5] gt ' ') {
+ $call = $via = $field[2];
+ $to = $field[5];
+ } else {
+ $call = $to = $field[2];
+ }
+ $dxchan = DXChannel->get($main::myalias) if $call eq $main::mycall;
+ $dxchan = DXChannel->get($call) unless $dxchan;
+ if ($dxchan && $dxchan->is_user) {
+ $field[3] =~ s/\%5E/^/g;
+ $dxchan->talk($field[1], $to, $via, $field[3]);
+ } else {
+ $self->route($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], $line);
+ return;
+ }
+ }
+
+ # if this is a 'nodx' node then ignore it
+ if ($badnode->in($field[7])) {
+ dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # if this is a 'bad spotter' user then ignore it
+ if ($badspotter->in($field[6])) {
+ dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
+ return;
+ }
+
+ # convert the date to a unix date
+ my $d = cltounix($field[3], $field[4]);
+ # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
+ if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
+ dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
+ return;
+ }
+
+ # is it 'baddx'
+ if ($baddx->in($field[2])) {
+ dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
+ return;
+ }
+
+ # do some de-duping
+ $field[5] =~ s/^\s+//; # take any leading blanks off
+ $field[2] = unpad($field[2]); # take off leading and trailing blanks from spotted callsign
+ if ($field[2] =~ /BUST\w*$/) {
+ dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
+ return;
+ }
+ if (Spot::dup($field[1], $field[2], $d, $field[5])) {
+ dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
+ return;
+ }
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($field[5])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
+ # global spot filtering on INPUT
+ if ($self->{inspotsfilter}) {
+ my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
+ unless ($filter) {
+ dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # add it
+ Spot::add(@spot);
+
+ #
+ # @spot at this point contains:-
+ # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
+ # then spotted itu, spotted cq, spotters itu, spotters cq
+ # you should be able to route on any of these
+ #
+
+ # fix up qra locators of known users
+ my $user = DXUser->get_current($spot[4]);
+ if ($user) {
+ my $qra = $user->qra;
+ unless ($qra && is_qra($qra)) {
+ my $lat = $user->lat;
+ my $long = $user->long;
+ if (defined $lat && defined $long) {
+ $user->qra(DXBearing::lltoqra($lat, $long));
+ $user->put;
+ }
+ }
+
+ # send a remote command to a distant cluster if it is visible and there is no
+ # qra locator and we havn't done it for a month.
+
+ unless ($user->qra) {
+ my $node;
+ my $to = $user->homenode;
+ my $last = $user->lastoper || 0;
+ if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
+ my $cmd = "forward/opernam $spot[4]";
+ # send the rcmd but we aren't interested in the replies...
+ my $dxchan = $node->dxchan;
+ if ($dxchan && $dxchan->is_clx) {
+ route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+ } else {
+ route(undef, $to, pc34($main::mycall, $to, $cmd));
+ }
+ if ($to ne $field[7]) {
+ $to = $field[7];
+ $node = Route::Node::get($to);
+ if ($node) {
+ $dxchan = $node->dxchan;
+ if ($dxchan && $dxchan->is_clx) {
+ route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
+ } else {
+ route(undef, $to, pc34($main::mycall, $to, $cmd));
+ }
+ }
+ }
+ $user->lastoper($main::systime);
+ $user->put;
+ }
+ }
+ }
+
+ # local processing
+ my $r;
+ eval {
+ $r = Local::spot($self, @spot);
+ };
+# dbg("Local::spot1 error $@") if isdbg('local') if $@;
+ return if $r;
+
+ # 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
+ $field[3] =~ s/^\s+//; # remove leading blanks
+ if (AnnTalk::dup($field[1], $field[2], $field[3])) {
+ dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
+ return;
+ }
+
+ if ($censorpc) {
+ my @bad;
+ if (@bad = BadWords::check($field[3])) {
+ dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ if ($field[2] eq '*' || $field[2] eq $main::mycall) {
+
+ # global ann filtering on INPUT
+ if ($self->{inannfilter}) {
+ my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
+ my @dxcc = Prefix::extract($field[1]);
+ if (@dxcc > 0) {
+ $ann_dxcc = $dxcc[1]->dxcc;
+ $ann_itu = $dxcc[1]->itu;
+ $ann_cq = $dxcc[1]->cq();
+ }
+ @dxcc = Prefix::extract($field[5]);
+ if (@dxcc > 0) {
+ $org_dxcc = $dxcc[1]->dxcc;
+ $org_itu = $dxcc[1]->itu;
+ $org_cq = $dxcc[1]->cq();
+ }
+ my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
+ $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
+ unless ($filter) {
+ dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
+ return;
+ }
+ }
+
+ # send it
+ $self->send_announce($line, @field[1..6]);
+ } 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
+
+ # general checks
+ my $dxchan;
+ my $ncall = $field[1];
+ my $newline = "PC16^";
+
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+ $dxchan = DXChannel->get($ncall);
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+ my $parent = Route::Node::get($ncall);
+ unless ($parent) {
+ dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required
+ return unless $self->in_filter_route($parent);
+
+ my $i;
+ my @rout;
+ for ($i = 2; $i < $#field; $i++) {
+ my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
+ next unless $call && $conf && defined $here && is_callsign($call);
+ next if $call eq $main::mycall;
+
+ eph_del_regex("^PC17\^$call\^$ncall");
+
+ $conf = $conf eq '*';
+
+ # reject this if we think it is a node already
+ my $r = Route::Node::get($call);
+ my $u = DXUser->get_current($call) unless $r;
+ if ($r || ($u && $u->is_node)) {
+ dbg("PCPROT: $call is a node") if isdbg('chanerr');
+ next;
+ }
+
+ $r = Route::User::get($call);
+ my $flags = Route::here($here)|Route::conf($conf);
+
+ if ($r) {
+ if ($r->flags != $flags) {
+ $r->flags($flags);
+ push @rout, $r;
+ }
+ $r->addparent($parent);
+ } else {
+ 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;
+ $user->homenode($parent->call) if !$user->homenode;
+ $user->node($parent->call);
+ $user->lastin($main::systime) unless DXChannel->get($call);
+ $user->put;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
+ return;
+ }
+
+ # queue up any messages (look for privates only)
+ DXMsg::queue_msg(1) if $self->state eq 'normal';
+
+ $self->route_pc16($parent, @rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 17) { # remove a user
+ my $dxchan;
+ my $ncall = $field[2];
+ my $ucall = $field[1];
+
+ eph_del_regex("^PC16.*$ncall.*$ucall");
+
+ if ($ncall eq $main::mycall) {
+ dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
+ return;
+ }
+ $dxchan = DXChannel->get($ncall);
+ if ($dxchan && $dxchan ne $self) {
+ dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
+ return;
+ }
+
+ my $uref = Route::User::get($ucall);
+ unless ($uref) {
+ dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
+ return;
+ }
+ my $parent = Route::Node::get($ncall);
+ unless ($parent) {
+ dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
+ return;
+ }
+
+ # input filter if required
+ return unless $self->in_filter_route($parent);
+
+ my @rout = $parent->del_user($uref);
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc17($parent, @rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 18) { # link request
+ $self->state('init');
+
+ # first clear out any nodes on this dxchannel
+ my $parent = Route::Node::get($self->{call});
+ my @rout = $parent->del_nodes;
+ $self->route_pc21(@rout, $parent) if @rout;
+ $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^";
+
+ # new routing list
+ my @rout;
+ my $parent = Route::Node::get($self->{call});
+ unless ($parent) {
+ dbg("DXPROT: my parent $self->{call} has disappeared");
+ $self->disconnect;
+ return;
+ }
+
+ # parse the PC19
+ for ($i = 1; $i < $#field-1; $i += 4) {
+ my $here = $field[$i];
+ my $call = uc $field[$i+1];
+ my $conf = $field[$i+2];
+ my $ver = $field[$i+3];
+ next unless defined $here && defined $conf && is_callsign($call);
+
+ eph_del_regex("^PC(?:21\^$call|17\^[^\^]+\^$call)");
+
+ # check for sane parameters
+ $ver = 5000 if $ver eq '0000';
+ next if $ver < 5000; # only works with version 5 software
+ next if length $call < 3; # min 3 letter callsigns
+ next if $call eq $main::mycall;
+
+ # update it if required
+ my $r = Route::Node::get($call);
+ my $flags = Route::here($here)|Route::conf($conf);
+ if ($r) {
+ my $ar;
+ if ($call ne $parent->call) {
+ if ($self->in_filter_route($r)) {
+ $ar = $parent->add($call, $ver, $flags);
+ push @rout, $ar if $ar;
+ } else {
+ next;
+ }
+ }
+ if ($r->version ne $ver || $r->flags != $flags) {
+ $r->version($ver);
+ $r->flags($flags);
+ push @rout, $r unless $ar;
+ }
+ } else {
+ if ($call eq $self->{call}) {
+ dbg("DXPROT: my channel route for $call has disappeared");
+ next;
+ };
+
+ my $new = Route->new($call); # throw away
+ if ($self->in_filter_route($new)) {
+ my $r = $parent->add($call, $ver, $flags);
+ push @rout, $r;
+ } else {
+ next;
+ }
+ }
+
+ # 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
+ $user->lockout(1);
+ $user->homenode($call);
+ $user->node($call);
+ }
+ $user->lastin($main::systime) unless DXChannel->get($call);
+ $user->put;
+ }
+
+ if (eph_dup($line)) {
+ dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
+ return;
+ }
+
+ $self->route_pc19(@rout) if @rout;
+ return;
+ }
+
+ if ($pcno == 20) { # send local configuration
+ $self->send_local_config();
+ $self->send(pc22());
+ $self->state('normal');
+ $self->{lastping} = 0;
+ return;
+ }
+
+ if ($pcno == 21) { # delete a cluster from the list
+ my $call = uc $field[1];