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bogus_bounce: added logging and rejection handling

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This commit is contained in:
Matt Simerson 2012-06-23 00:32:40 -04:00
parent 98c5487518
commit 12b4c6a02a
1 changed files with 26 additions and 43 deletions
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67
plugins/check_bogus_bounce
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@ -32,13 +32,9 @@ Deny with a soft error code.
=back
=cut
=head1 AUTHOR
Steve Kemp
--
http://steve.org.uk/Software/qpsmtpd/
2010 - Steve Kemp - http://steve.org.uk/Software/qpsmtpd/
=cut
@ -51,23 +47,22 @@ Look for our single expected argument and configure "action" appropriately.
=cut
sub register {
my ($self, $qp, $arg, @nop) = (@_);
my ($self, $qp) = (shift, shift);
#
# Default behaviour is to merely log.
#
$self->{_action} = "log";
#
# Unless one was specified
#
if ($arg) {
if ($arg =~ /^(log|deny|denysoft)$/i) {
$self->{_action} = $arg;
if ( @_ % 2 ) {
$self->{_args}{action} = shift;
}
else {
die "Invalid argument '$arg' - use one of : log, deny, denysoft";
}
$self->{_args} = { @_ };
};
if ( ! defined $self->{_args}{reject} ) {
$self->{_args}{reject} = 0; # legacy default
};
# we only need to check for deferral, default is DENY
if ( $self->{_args}{action} =~ /soft/i ) {
$self->{_args}{reject_type} = 'temp';
}
}
@ -88,39 +83,27 @@ sub hook_data_post {
# Find the sender, and return unless it wasn't a bounce.
#
my $sender = $transaction->sender->address || undef;
return DECLINED unless ($sender eq "<>");
if ( $sender && $sender ne '<>') {
$self->log(LOGINFO, "pass, not a null sender");
return DECLINED;
};
#
# Get the recipients.
#
my @to = $transaction->recipients || ();
return DECLINED unless (scalar @to > 1);
if (scalar @to == 1) {
$self->log(LOGINFO, "pass, only 1 recipient");
return DECLINED;
};
#
# OK at this point we know:
# at this point we know:
#
# 1. It is a bounce, via the null-envelope.
# 2. It is a bogus bounce, because there are more than one recipients.
#
if (lc $self->{_action} eq "log") {
$self->log(LOGWARN,
$self->plugin_name() . " bogus bounce for :" . join(",", @to));
}
elsif (lc $self->{_action} eq "deny") {
return (DENY,
$self->plugin_name() . " determined this to be a bogus bounce");
}
elsif (lc $self->{_action} eq "denysoft") {
return (DENYSOFT,
$self->plugin_name() . " determined this to be a bogus bounce");
}
else {
$self->log(LOGWARN,
$self->plugin_name() . " failed to determine action. bug?");
}
$self->log(LOGINFO, "fail, bogus bounce for :" . join(',', @to));
#
# All done; allow this to proceed
#
return DECLINED;
$self->get_reject( "fail, this is a bogus bounce" );
}