preliminary support of built-in clamav

1 files changed, 135 insertions, 0 deletions

diff --git a/fml/lib/FML/Filter/External/clamscan.pm b/fml/lib/FML/Filter/External/clamscan.pm
new file mode 100644
index 00000000..61c37392
--- /dev/null
+++ b/fml/lib/FML/Filter/External/clamscan.pm
@@ -0,0 +1,135 @@
+#-*- perl -*-
+#
+#  Copyright (C) 2004 Ken'ichi Fukamachi
+#   All rights reserved. This program is free software; you can
+#   redistribute it and/or modify it under the same terms as Perl itself.
+#
+# $FML: @template.pm,v 1.8 2004/01/01 07:29:27 fukachan Exp $
+#
+
+package FML::Filter::External::clamscan;
+use strict;
+use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
+use Carp;
+
+=head1 NAME
+
+FML::Filter::External::clamscan - SpamAssassin interface.
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 METHODS
+
+=head2 C<new()>
+
+=cut
+
+
+# Descriptions: constructor.
+#    Arguments: OBJ($self)
+# Side Effects: none
+# Return Value: OBJ
+sub new
+{
+    my ($self) = @_;
+    my ($type) = ref($self) || $self;
+    my $me     = {};
+    return bless $me, $type;
+}
+
+
+# Descriptions: check if the current message looks a spam.
+#    Arguments: OBJ($self) OBJ($curproc)
+# Side Effects: none
+# Return Value: NUM(1 or 0) (1 if spam)
+sub process
+{
+    my ($self, $curproc) = @_;
+    my $config  = $curproc->config();
+    my $program = $config->{ path_clamscan } || '';
+
+    if ($program) {
+	if (-x $program) {
+	    return $self->_check($curproc, $program);
+	}
+	else {
+	    $curproc->logerror("$program not exists");
+	}
+    } 
+    else {
+	$curproc->logerror("path_clamscan undefined");
+    }
+
+    return 0;
+}
+
+
+# Descriptions: check the message through $program.
+#    Arguments: OBJ($self) OBJ($curproc) STR($program)
+# Side Effects: none
+# Return Value: NUM(1 or 0) (1 if virus)
+sub _check
+{
+    my ($self, $curproc, $program) = @_;
+    my $opts = "--quiet --mbox"
+
+    use FileHandle;
+    my $tmp_file = $curproc->temp_file_path();
+    my $wh       = new FileHandle "> $tmp_file";
+    if (defined $wh) {
+	$wh->autoflush(1);
+	my $msg = $curproc->incoming_message();
+	$msg->print($wh);
+	$wh->close();
+
+	unless (-f $tmp_file) {
+	    return 0;
+	}
+
+	my $status = 0;
+	system "$program $opts $tmp_file";
+	if ($status = $?) {
+	    if ($status == 1) {
+		my $r = "virus found by clamav";
+		$curproc->logerror($r);
+		$curproc->filter_state_virus_checker_set_error($r);
+	    }
+	    else {
+		$curproc->logerror("bogofilter error: code=$?");
+		return 0;
+	    }
+
+	    return 1;
+	}
+    }
+
+    return 0;
+}
+
+
+=head1 CODING STYLE
+
+See C<http://www.fml.org/software/FNF/> on fml coding style guide.
+
+=head1 AUTHOR
+
+Ken'ichi Fukamachi
+
+=head1 COPYRIGHT
+
+Copyright (C) 2004 Ken'ichi Fukamachi
+
+All rights reserved. This program is free software; you can
+redistribute it and/or modify it under the same terms as Perl itself.
+
+=head1 HISTORY
+
+FML::Filter::External::clamscan appeared in fml8 mailing list driver package.
+See C<http://www.fml.org/> for more details.
+
+=cut
+
+
+1;