X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXXml.pm;h=9d0a59698170c153a5db6ec4ab77ac124012c878;hb=a253a7d3820e9fb58bca0c2633ba958778ad4c52;hp=c6c8ee6922835d3c160789544878f30c1be61c0d;hpb=0154b38552abaaa4e79ebd9f3e647352acacbcc7;p=spider.git

diff --git a/perl/DXXml.pm b/perl/DXXml.pm
index c6c8ee69..9d0a5969 100644
--- a/perl/DXXml.pm
+++ b/perl/DXXml.pm
@@ -9,38 +9,269 @@
 use strict;
 
 package DXXml;
+use IsoTime;
 
-use DXChannel;
 use DXProt;
+use DXDebug;
+use DXLog;
+use DXUtil;
+use DXXml::Ping;
+use DXXml::Dx;
+use DXXml::IM;
 
-use vars qw($VERSION $BRANCH $xs);
+use vars qw($VERSION $BRANCH $xs $id $max_old_age $max_future_age $dupeage);
 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
 $main::build += $VERSION;
 $main::branch += $BRANCH;
 
-$xs = undef;							# the XML::Simple parser instance
+$xs = undef;					# the XML::Simple parser instance
+$id = 0;						# the next ID to be used
+$max_old_age = 3600;			# how old a sentence we will accept
+$max_future_age = 900;			# how far into the future we will accept
+$dupeage = 12*60*60;			# duplicates stored half a day 
 
+
+# generate a new XML sentence structure 
+sub new
+{
+	my $pkg = shift;
+	my $class = ref $pkg || $pkg;
+	return bless{@_}, $class;
+}
+
+#
+# note that this a function not a method
+#
 sub init
 {
 	return unless $main::do_xml;
 	
-	eval { require XML::Simple; };
-	unless ($@) {
+	eval { require XML::Simple };
+	eval { require XML::Parser } unless $@;
+	if ($@) {
+		LogDbg('err', "do_xml was set to 1 and the XML routines failed to load ($@)");
+		$main::do_xml = 0;
+	} else {
+		$XML::Simple::PREFERRED_PARSER = 'XML::Parser';
 		import XML::Simple;
 		$DXProt::handle_xml = 1;
-		$xs = new XML::Simple();
+		$xs = new XML::Simple(Cache=>[]);
 	}
 	undef $@;
 }
 
+#
+# note that this a function not a method
+#
 sub normal
 {
+	my $dxchan = shift;
+	my $line = shift;
+
+	unless ($main::do_xml) {
+		dbg("xml not enabled, IGNORED") if isdbg('chanerr');
+		return;
+	}
+	
+	my ($rootname) = $line =~ '<(\w+) ';
+	my $pkg = "DXXml::" . ucfirst lc "$rootname";
+
+	unless (defined *{"${pkg}::"} && $pkg->can('handle_input')) {
+		dbg("xml sentence $rootname not recognised, IGNORED") if isdbg('chanerr');
+		return;
+	}
+		
+	my $xref;
+	unless ($xref = $pkg->decode_xml($dxchan, $line))  {
+		dbg("invalid XML ($@), IGNORED") if isdbg('chanerr');
+		undef $@;
+		return;
+	}
+
+	# do some basic checks
+	my ($o, $t, $id);
+	unless (exists $xref->{o} && is_callsign($o = $xref->{o})) {
+		dbg("Invalid origin, not a callsign") if isdbg('chanerr');
+		return;
+	}
+	unless (exists $xref->{t} && ($t = IsoTime::unixtime($xref->{t}))) {
+		dbg("Invalid, non-existant or zero time") if isdbg('chanerr');
+		return;
+	}
+	unless ($t > $main::systime - $max_old_age && $t < $main::systime + $max_future_age) {
+		dbg("Too old or too far in the future") if isdbg('chanerr');
+		return;
+	}
+	unless (exists $xref->{id} && ($id = $xref->{id}) >= 0 && $id <= 999) {
+		dbg("Invalid or non-existant id") if isdbg('chanerr');
+		return;
+	}
+
+	# mark the handle as accepting xml (but only if they 
+	# have at least one right)
+	$dxchan->handle_xml(1);
 
+	# now check that we have not seen this before 
+	# this is based on the tuple (o (origin), t (time, normalised to time_t), id)
+	$xref->{'-timet'} = $t;
+	return if DXDupe::check("xml,$o,$t,$id", $dupeage);
+		
+	$xref = bless $xref, $pkg;
+	$xref->{'-xml'} = $line; 
+	$xref->handle_input($dxchan);
 }
 
+#
+# note that this a function not a method
+#
+
+my $last10;
+my $last_hour;
+
 sub process
 {
+	my $t = time;
+	my @dxchan = DXChannel::get_all();
+	my $dxchan;
+
+	foreach $dxchan (@dxchan) {
+		next unless $dxchan->is_node;
+		next unless $dxchan->handle_xml;
+		next if $dxchan == $main::me;
+
+		# send a ping out on this channel
+		if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
+			if ($dxchan->{nopings} <= 0) {
+				$dxchan->disconnect;
+			} else {
+				DXXml::Ping::add($main::me, $dxchan->call);
+				$dxchan->{nopings} -= 1;
+				$dxchan->{lastping} = $t;
+				$dxchan->{lastping} += $dxchan->{pingint} / 2 unless @{$dxchan->{pingtime}};
+			}
+		}
+	}
+
+
+	# every ten seconds
+	if (!$last10 || $t - $last10 >= 10) {	
+		$last10 = $t;
+	}
+
+	# every hour
+	if (!$last_hour || $main::systime - 3600 > $last_hour) {
+		$last_hour = $main::systime;
+	}
+
+}
+
+sub decode_xml
+{
+	my $pkg = shift;
+	my $dxchan = shift;
+	my $line = shift;
 
+	my $xref;
+	eval {$xref = $xs->XMLin($line)};
+	return $xref;
 }
+
+sub nextid
+{
+	my $r = $id++;
+	$id = 0 if $id > 999;
+	return $r;
+}
+
+sub toxml
+{
+	my $self = shift;
+
+	unless (exists $self->{'-xml'}) {
+		$self->{o} ||= $main::mycall;
+		$self->{t} ||= IsoTime::hourminsec();
+		$self->{id} ||= nextid();
+		
+		my ($name) = (ref $self) =~ /::(\w+)$/;
+		$self->{'-xml'} = $xs->XMLout($self, RootName =>lc $name, NumericEscape=>1);
+	}
+	return $self->{'-xml'};
+}
+
+sub route
+{
+	my $self = shift;
+	my $fromdxchan = shift;
+	my $to = shift;
+	my $via = $to || $self->{'-via'} || $self->{to};
+
+	unless ($via) {
+		dbg("XML: no route specified (" . $self->toxml . ")") if isdbg('chanerr');
+		return;
+	}
+	if (ref $fromdxchan && $via && $fromdxchan->call eq $via) {
+		dbg("XML: Trying to route back to source (" . $self->toxml . ")") if isdbg('chanerr');
+		return;
+	}
+
+	# always send it down the local interface if available
+	my $dxchan = DXChannel::get($via);
+	if ($dxchan) {
+		dbg("route: $via -> $dxchan->{call} direct" ) if isdbg('route');
+	} else {
+		my $cl = Route::get($via);
+		$dxchan = $cl->dxchan if $cl;
+		dbg("route: $via -> $dxchan->{call} using normal route" ) if isdbg('route');
+	}
+
+	# try the backstop method
+	unless ($dxchan) {
+		my $rcall = RouteDB::get($via);
+		if ($rcall) {
+			$dxchan = DXChannel::get($rcall);
+			dbg("route: $via -> $rcall using RouteDB" ) if isdbg('route') && $dxchan;
+		}
+	}
+	
+	unless ($dxchan) {
+		dbg("XML: no route available to $via") if isdbg('chanerr');
+		return;
+	}
+
+	if ($fromdxchan->call eq $via) {
+		dbg("XML: Trying to route back to source (" . $self->toxml . ")") if isdbg('chanerr');
+		return;
+	}
+
+	if ($dxchan == $main::me) {
+		dbg("XML: Trying to route to me (" . $self->toxml . ")") if isdbg('chanerr');
+		return;
+	}
+
+	if ($dxchan->handle_xml) {
+		$dxchan->send($self->toxml);
+	} else {
+		$self->{o} ||= $main::mycall;
+		$self->{id} ||= nextid();
+		$self->{'-timet'} ||= $main::systime;
+		$dxchan->send($self->topcxx);
+	}
+}
+
+sub has_xml
+{
+	return exists $_[0]->{'-xml'};
+}
+
+sub has_pcxx
+{
+	return exists $_[0]->{'-pcxx'};
+}
+
+sub has_cmd
+{
+	return exists $_[0]->{'-cmd'};
+}
+
 1;