From: Dirk Koopman <djk@tobit.co.uk>
Date: Fri, 9 Mar 2012 22:13:29 +0000 (+0000)
Subject: try to fix unblessed refs in PC34s
X-Git-Tag: 1.57~32
X-Git-Url: http://gb7djk.dxcluster.net/gitweb/gitweb.cgi?p=spider.git;a=commitdiff_plain;h=dabf8497c51068614efdd147f35c0a143f547424

try to fix unblessed refs in PC34s
---

diff --git a/Changes b/Changes
index abdfcc56..32a1306a 100644
--- a/Changes
+++ b/Changes
@@ -1,3 +1,5 @@
+09Mar12=======================================================================
+1. Try to trap unblessed references on receipt of PC34s
 15Feb12=======================================================================
 1. Add CTY2202 changes
 25Jan12=======================================================================
diff --git a/perl/DXProt.pm b/perl/DXProt.pm
index 494b4348..e0db5fa7 100644
--- a/perl/DXProt.pm
+++ b/perl/DXProt.pm
@@ -1111,9 +1111,19 @@ sub process_rcmd
 	my ($self, $tonode, $fromnode, $user, $cmd) = @_;
 	if ($tonode eq $main::mycall) {
 		my $ref = DXUser::get_current($fromnode);
+		unless ($ref && UNIVERSAL($ref, 'DXUser')) {
+			dbg("DXProt process_rcmd: user $fromnode isn't a reference (check user_asc and tell G1TLH)"); 
+			$self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
+			return;
+		}
 		my $cref = Route::Node::get($fromnode);
+		unless ($cref && UNIVERSAL($cref, 'Route')) {
+			dbg("DXProt process_rcmd: Route $fromnode isn't a reference (tell G1TLH)"); 
+			$self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
+			return;
+		}
 		Log('rcmd', 'in', ($ref->{priv}||0), $fromnode, $cmd);
-		if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $ref->homenode && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
+		if ($cmd !~ /^\s*rcmd/i && $ref->homenode && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
 			if ($ref->{priv}) {		# you have to have SOME privilege, the commands have further filtering
 				$self->{remotecmd} = 1; # for the benefit of any command that needs to know
 				my $oldpriv = $self->{priv};
diff --git a/perl/DXUser.pm b/perl/DXUser.pm
index 94fa3d1a..419086ad 100644
--- a/perl/DXUser.pm
+++ b/perl/DXUser.pm
@@ -249,10 +249,11 @@ sub get
 	unless ($dbm->get($call, $data)) {
 		$ref = decode($data);
 		if ($ref) {
-			if (ref $ref ne 'DXUser') {
+			if (UNIVERSAL::isa($ref, 'DXUser')) {
 				dbg("DXUser::get: got strange answer from decode ". ref $ref. " ignoring");
 				return undef;
 			}
+			# we have a reference and it *is* a DXUser
 		} else {
 			dbg("DXUser::get: no reference returned from decode $!");
 			return undef;
@@ -278,7 +279,7 @@ sub get_current
 	my $dxchan = DXChannel::get($call);
 	if ($dxchan) {
 		my $ref = $dxchan->user;
-		return $ref if ref $ref eq 'DXUser';
+		return $ref if $ref && UNIVERSAL::isa($ref, 'DXUser');
 
 		dbg("DXUser::get_current: got invalid user ref from dxchan $dxchan->{call} ". ref $ref. " ignoring");
 	}