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Make spammy_tlds configurable (#255)

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* Make spammy_tlds configurable
The hardcoded list of spammy tlds can't fit every needs. Makes this configurable through a config file.
You can now also raise the karma for tlds you want.
The default config provided keep the same behaviour as before.

* Update tlds' karma
This commit is contained in:
Daniel B 2016-04-25 18:13:08 +02:00 committed by Matt Simerson
parent 5e157d2344
commit d6be03b37e
2 changed files with 46 additions and 9 deletions
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14
config.sample/karma_tlds Normal file
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@ -0,0 +1,14 @@
# Karma to apply depending on the tld of the envelope sender
# Used by the karma plugin
# Warning: setting karma too low can blacklist the entire tld
work:-4
rocks:-3
ninja:-3
info:-2
biz:-2
pw:-2
me:-1
us:-5
eu:-4
link:-3
science:-6

41
plugins/karma
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@ -102,6 +102,20 @@ following list will be used:
Adjust the quantity of logging for this plugin. See docs/logging.pod Adjust the quantity of logging for this plugin. See docs/logging.pod
=head1 CONFIG FILES
This plugin uses the following configuration files. All are optional.
=head2 karma_tlds
This file can contain semicolon separated tlds and the corresponding
karma adjustment to apply when the envelope sender match. It can be used to
penalize "spammy" tlds, or to raise the karma from (mostly) good tlds.
jp:-4
ch:-3
fr:+1
=head1 BENEFITS =head1 BENEFITS
Karma reduces the resources wasted by naughty mailers. When used with Karma reduces the resources wasted by naughty mailers. When used with
@ -352,18 +366,14 @@ sub from_handler {
my $full_from = $self->connection->notes('envelope_from'); my $full_from = $self->connection->notes('envelope_from');
$self->illegal_envelope_format( $full_from ); $self->illegal_envelope_format( $full_from );
my %spammy_tlds = ( my $karma_tlds = $self->get_karma_tlds() or return DECLINED;
map { $_ => 4 } qw/ info pw /, foreach my $tld ( keys %$karma_tlds ) {
map { $_ => 3 } qw/ tw biz /,
map { $_ => 2 } qw/ cl br fr be jp no se sg /,
);
foreach my $tld ( keys %spammy_tlds ) {
my $len = length $tld; my $len = length $tld;
my $score = $spammy_tlds{$tld} or next; my $score = $karma_tlds->{$tld} or next;
$len ++; $len ++;
if ( $sender->host && ".$tld" eq substr($sender->host,-$len,$len) ) { if ( $sender->host && ".$tld" eq substr($sender->host,-$len,$len) ) {
$self->log(LOGINFO, "penalizing .$tld envelope sender"); $self->log(LOGINFO, "adjusting karma for .$tld envelope sender");
$self->adjust_karma(-$score); $self->adjust_karma($score);
} }
} }
@ -479,6 +489,19 @@ sub illegal_envelope_format {
} }
} }
sub get_karma_tlds {
my $self = shift;
my %karma_tlds =
map { (split /:/, $_, 2)[0, 1] } $self->qp->config('karma_tlds');
if (!%karma_tlds) {
$self->log(LOGDEBUG, "no specific karma for tlds defined");
return;
}
return \%karma_tlds;
}
sub parse_db_record { sub parse_db_record {
my ($self, $value) = @_; my ($self, $value) = @_;