+#
+# the DX command
+#
+# this is where the fun starts!
+#
+# Copyright (c) 1998 Dirk Koopman G1TLH
+#
+#
+#
+
+my ($self, $line) = @_;
+my @f = split /\s+/, $line, 3;
+my $spotter = $self->call;
+my $spotted;
+my $freq;
+my @out;
+my $valid = 0;
+my $localonly;
+return (1, $self->msg('e5')) if $self->remotecmd || $self->inscript;
+return (1, $self->msg('e28')) unless $self->registered;
+
+my @bad;
+if (@bad = BadWords::check($line)) {
+ $self->badcount(($self->badcount||0) + @bad);
+ LogDbg('DXCommand', "$self->{call} swore: $line (with words:" . join(',', @bad) . ")");
+ $localonly++;
+}
+
+# do we have at least two args?
+return (1, $self->msg('dx2')) unless @f >= 2;
+
+# as a result of a suggestion by Steve K9AN, I am changing the syntax of
+# 'spotted by' things to "dx by g1tlh <freq> <call>" <freq> and <call>
+# can be in any order
+
+if ($f[0] =~ /^by$/i) {
+ return (1, $self->msg('e5')) unless $main::allowdxby || $self->priv;
+ $spotter = uc $f[1];
+ $line =~ s/\s*$f[0]\s+$f[1]\s+//;
+# $line = $f[2];
+ @f = split /\s+/, $line, 3;
+ return (1, $self->msg('dx2')) unless @f >= 2;
+}
+
+# get the freq and callsign either way round
+if (is_freq($f[1]) && $f[0] =~ m{^[\w\d]+(?:/[\w\d]+){0,2}$}) {
+ $spotted = uc $f[0];
+ $freq = $f[1];
+} elsif (is_freq($f[0]) && $f[1] =~ m{^[\w\d]+(?:/[\w\d]+){0,2}$}) {
+ $freq = $f[0];
+ $spotted = uc $f[1];
+} else {
+ return (1, $self->msg('dx3'));
+}
+
+# check some other things
+# remove ssid from calls
+my $callnoid = $self->call;
+$callnoid =~ s/-\d+$//;
+my $spotternoid = $spotter;
+$spotternoid =~ s/-\d+$//;
+if ($DXProt::baddx->in($spotted)) {
+ $localonly++;
+}
+if ($DXProt::badspotter->in($callnoid)) {
+ LogDbg('DXCommand', "$self->{call} badspotter with $callnoid ($line)");
+ $localonly++;
+}
+if ($callnoid ne $spotternoid && $DXProt::badspotter->in($spotternoid)) {
+ LogDbg('DXCommand', "$self->{call} badspotter with $spotternoid ($line)");
+ $localonly++;
+}
+
+# make line the rest of the line
+$line = $f[2] || " ";
+@f = split /\s+/, $line;
+
+# bash down the list of bands until a valid one is reached
+my $bandref;
+my @bb;
+my $i;
+
+# first in KHz
+L1:
+foreach $bandref (Bands::get_all()) {
+ @bb = @{$bandref->band};
+ for ($i = 0; $i < @bb; $i += 2) {
+ if ($freq >= $bb[$i] && $freq <= $bb[$i+1]) {
+ $valid = 1;
+ last L1;
+ }
+ }
+}
+
+unless ($valid) {
+
+ # try again in MHZ
+ $freq = $freq * 1000 if $freq;
+
+ L2:
+ foreach $bandref (Bands::get_all()) {
+ @bb = @{$bandref->band};
+ for ($i = 0; $i < @bb; $i += 2) {
+ if ($freq >= $bb[$i] && $freq <= $bb[$i+1]) {
+ $valid = 1;
+ last L2;
+ }
+ }
+ }
+}
+
+
+push @out, $self->msg('dx1', $freq) unless $valid;
+
+# check we have a callsign :-)
+if ($spotted le ' ') {
+ push @out, $self->msg('dx2');
+ $valid = 0;
+}
+
+return (1, @out) unless $valid;
+
+my $ipaddr;
+
+if ($self->conn && $self->conn->peerhost) {
+ my $addr = $self->conn->peerhost;
+ $ipaddr = $addr unless !is_ipaddr($addr) || $addr =~ /^127\./ || $addr =~ /^::[0-9a-f]+$/;
+} elsif ($self->inscript) {
+ $ipaddr = "script";
+}
+
+# Store it here (but only if it isn't baddx)
+my $t = (int ($main::systime/60)) * 60;
+return (1, $self->msg('dup')) if Spot::dup($freq, $spotted, $t, $line, $spotter);
+my @spot = Spot::prepare($freq, $spotted, $t, $line, $spotter, $main::mycall, $ipaddr);
+
+if ($freq =~ /^69/ || $localonly) {
+
+ # heaven forfend that we get a 69Mhz band :-)
+ if ($freq =~ /^69/) {
+ $self->badcount(($self->badcount||0) + 1);
+ }
+
+ $self->dx_spot(undef, undef, @spot);
+ return (1);
+} else {
+ if (@spot) {
+ # store it
+ Spot::add(@spot);
+
+ # send orf to the users
+ if ($ipaddr) {
+ DXProt::send_dx_spot($self, DXProt::pc61($spotter, $freq, $spotted, $line, $ipaddr), @spot);
+ } else {
+ DXProt::send_dx_spot($self, DXProt::pc11($spotter, $freq, $spotted, $line), @spot);
+ }
+ }
+}
+
+return (1, @out);
+
+
+
+
+