plugins/spamassassin

New option to strip/rename/keep old X-Spam headers (Michael Holzt)


git-svn-id: https://svn.perl.org/qpsmtpd/trunk@335 958fd67b-6ff1-0310-b445-bb7760255be9
This commit is contained in:
John Peacock 2004-10-13 01:52:35 +00:00
parent e2bb53901d
commit af03c53512

View File

@ -50,6 +50,14 @@ Beginning with Mail::SpamAssassin 2.60, it is possible to use Unix
domain sockets for spamd. This is faster and more secure than using
a TCP connection.
=item leave_old_headers [drop|rename|keep]
Another mail server before might have checked this mail already and may have
added X-Spam-Status, X-Spam-Flag and X-Spam-Check-By lines. Normally you can
not trust such headers and should either rename them to X-Old-... (default,
parameter 'rename') or have them removed (parameter 'drop'). If you know
what you are doing, you can also leave them intact (parameter 'keep').
=back
With both of the first options the configuration line will look like the following
@ -89,6 +97,8 @@ sub check_spam {
$self->log(6, "check_spam");
return (DECLINED) if $transaction->body_size > 500_000;
my $leave_old_headers = lc($self->{_args}->{leave_old_headers}) || 'rename';
my $remote = 'localhost';
my $port = 783;
if ($port =~ /\D/) { $port = getservbyname($port, 'tcp') }
@ -144,6 +154,20 @@ sub check_spam {
my $line0 = <SPAMD>; # get the first protocol lines out
if ($line0) {
$self->log(6, "check_spam: spamd: $line0");
if ( $leave_old_headers eq 'rename' )
{
foreach my $header ( $transaction->header->get('X-Spam-Check-By') )
{
$transaction->header->add('X-Old-Spam-Check-By', $header);
}
}
if ( $leave_old_headers eq 'drop' || $leave_old_headers eq 'rename' )
{
$transaction->header->delete('X-Spam-Check-By');
}
$transaction->header->add("X-Spam-Check-By", $self->qp->config('me'), 0);
}
@ -162,6 +186,25 @@ sub check_spam {
$flag = $flag eq 'True' ? 'Yes' : 'No';
$self->log(6, "check_spam: finished reading from spamd");
if ( $leave_old_headers eq 'rename' )
{
foreach my $header ( $transaction->header->get('X-Spam-Flag') )
{
$transaction->header->add('X-Old-Spam-Flag', $header);
}
foreach my $header ( $transaction->header->get('X-Spam-Status') )
{
$transaction->header->add('X-Old-Spam-Status', $header);
}
}
if ( $leave_old_headers eq 'drop' || $leave_old_headers eq 'rename' )
{
$transaction->header->delete('X-Spam-Flag');
$transaction->header->delete('X-Spam-Status');
}
$transaction->header->add('X-Spam-Flag', 'YES', 0) if ($flag eq 'Yes');
$transaction->header->add('X-Spam-Status',
"$flag, hits=$hits required=$required\n" .