mirror of
https://github.com/pragma-/pbot.git
synced 2024-12-24 11:42:35 +01:00
188 lines
7.5 KiB
Perl
188 lines
7.5 KiB
Perl
# This Source Code Form is subject to the terms of the Mozilla Public
|
|
# License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
|
|
package Plugins::AntiRepeat;
|
|
|
|
use warnings;
|
|
use strict;
|
|
|
|
use feature 'switch';
|
|
no if $] >= 5.018, warnings => "experimental::smartmatch";
|
|
|
|
use feature 'unicode_strings';
|
|
|
|
use Carp ();
|
|
|
|
use String::LCSS qw/lcss/;
|
|
use Time::HiRes qw/gettimeofday/;
|
|
use POSIX qw/strftime/;
|
|
|
|
sub new {
|
|
Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference") if ref $_[1] eq 'HASH';
|
|
my ($class, %conf) = @_;
|
|
my $self = bless {}, $class;
|
|
$self->initialize(%conf);
|
|
return $self;
|
|
}
|
|
|
|
sub initialize {
|
|
my ($self, %conf) = @_;
|
|
|
|
$self->{pbot} = delete $conf{pbot} // Carp::croak("Missing pbot reference to " . __FILE__);
|
|
|
|
$self->{pbot}->{registry}->add_default('text', 'antiflood', 'antirepeat', $conf{antirepeat} // 1);
|
|
$self->{pbot}->{registry}->add_default('text', 'antiflood', 'antirepeat_threshold', $conf{antirepeat_threshold} // 2.5);
|
|
$self->{pbot}->{registry}->add_default('text', 'antiflood', 'antirepeat_match', $conf{antirepeat_match} // 0.5);
|
|
$self->{pbot}->{registry}->add_default('text', 'antiflood', 'antirepeat_allow_bot', $conf{antirepeat_allow_bot} // 1);
|
|
|
|
$self->{pbot}->{event_dispatcher}->register_handler('irc.public', sub { $self->on_public(@_) });
|
|
$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_public(@_) });
|
|
|
|
$self->{pbot}->{timer}->register(sub { $self->adjust_offenses }, 60 * 60 * 1, 'antirepeat');
|
|
|
|
$self->{offenses} = {};
|
|
}
|
|
|
|
sub unload {
|
|
my $self = shift;
|
|
# perform plugin clean-up here
|
|
# normally we'd unregister the 'irc.public' event handler; however, the
|
|
# event dispatcher will do this automatically for us when it sees there
|
|
# is no longer an existing sub.
|
|
|
|
$self->{pbot}->{timer}->unregister('antirepeat');
|
|
}
|
|
|
|
sub on_public {
|
|
my ($self, $event_type, $event) = @_;
|
|
my ($nick, $user, $host, $msg) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);
|
|
my $channel = lc $event->{event}->{to}[0];
|
|
|
|
($nick, $user, $host) = $self->{pbot}->{irchandlers}->normalize_hostmask($nick, $user, $host);
|
|
|
|
return 0 if not $self->{pbot}->{registry}->get_value('antiflood', 'antirepeat');
|
|
|
|
my $antirepeat = $self->{pbot}->{registry}->get_value($channel, 'antirepeat');
|
|
return 0 if defined $antirepeat and not $antirepeat;
|
|
|
|
return 0 if $channel !~ m/^#/;
|
|
return 0 if $event->{interpreted};
|
|
return 0 if $self->{pbot}->{antiflood}->whitelisted($channel, "$nick!$user\@$host", 'antiflood');
|
|
|
|
my $account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
|
|
|
|
# don't enforce anti-repeat for unreg spam
|
|
my $chanmodes = $self->{pbot}->{channels}->get_meta($channel, 'MODE');
|
|
if (defined $chanmodes and $chanmodes =~ m/z/ and exists $self->{pbot}->{bantracker}->{banlist}->{$channel}->{'+q'}->{'$~a'}) {
|
|
my $nickserv = $self->{pbot}->{messagehistory}->{database}->get_current_nickserv_account($account);
|
|
return 0 if not defined $nickserv or not length $nickserv;
|
|
}
|
|
|
|
my $messages = $self->{pbot}->{messagehistory}->{database}->get_recent_messages($account, $channel, 6, $self->{pbot}->{messagehistory}->{MSG_CHAT});
|
|
|
|
my $botnick = $self->{pbot}->{registry}->get_value('irc', 'botnick');
|
|
|
|
my $bot_trigger = $self->{pbot}->{registry}->get_value($channel, 'trigger')
|
|
// $self->{pbot}->{registry}->get_value('general', 'trigger');
|
|
|
|
my $allow_bot = $self->{pbot}->{registry}->get_value($channel, 'antirepeat_allow_bot')
|
|
// $self->{pbot}->{registry}->get_value('antiflood', 'antirepeat_allow_bot');
|
|
|
|
my $match = $self->{pbot}->{registry}->get_value($channel, 'antirepeat_match')
|
|
// $self->{pbot}->{registry}->get_value('antiflood', 'antirepeat_match');
|
|
|
|
my %matches;
|
|
my $now = gettimeofday;
|
|
|
|
foreach my $string1 (@$messages) {
|
|
next if $now - $string1->{timestamp} > 60 * 60 * 2;
|
|
next if $allow_bot and $string1->{msg} =~ m/^(?:$bot_trigger|$botnick.?)/;
|
|
$string1->{msg} =~ s/^[^;,:]{1,20}[;,:]//; # remove nick-like prefix if one exists
|
|
next if length $string1->{msg} <= 5; # allow really short messages since "yep" "ok" etc are so common
|
|
|
|
if (exists $self->{offenses}->{$account} and exists $self->{offenses}->{$account}->{$channel}) {
|
|
next if $self->{offenses}->{$account}->{$channel}->{last_offense} >= $string1->{timestamp};
|
|
}
|
|
|
|
foreach my $string2 (@$messages) {
|
|
next if $now - $string2->{timestamp} > 60 * 60 * 2;
|
|
next if $allow_bot and $string2->{msg} =~ m/^(?:$bot_trigger|$botnick.?)/;
|
|
$string2->{msg} =~ s/^[^;,:]{1,20}[;,:]//; # remove nick-like prefix if one exists
|
|
next if length $string2->{msg} <= 5; # allow really short messages since "yep" "ok" etc are so common
|
|
|
|
if (exists $self->{offenses}->{$account} and exists $self->{offenses}->{$account}->{$channel}) {
|
|
next if $self->{offenses}->{$account}->{$channel}->{last_offense} >= $string2->{timestamp};
|
|
}
|
|
|
|
my $string = lcss(lc $string1->{msg}, lc $string2->{msg});
|
|
|
|
if (defined $string) {
|
|
my $length = length $string;
|
|
my $length1 = $length / length $string1->{msg};
|
|
my $length2 = $length / length $string2->{msg};
|
|
|
|
if ($length1 >= $match && $length2 >= $match) {
|
|
$matches{$string}++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
my $threshold = $self->{pbot}->{registry}->get_value($channel, 'antirepeat_threshold')
|
|
// $self->{pbot}->{registry}->get_value('antiflood', 'antirepeat_threshold');
|
|
|
|
foreach my $match (keys %matches) {
|
|
if (sqrt $matches{$match} > $threshold) {
|
|
$self->{offenses}->{$account}->{$channel}->{last_offense} = gettimeofday;
|
|
$self->{offenses}->{$account}->{$channel}->{last_adjustment} = gettimeofday;
|
|
$self->{offenses}->{$account}->{$channel}->{offenses}++;
|
|
|
|
$self->{pbot}->{logger}->log("$nick!$user\@$host triggered anti-repeat; offense $self->{offenses}->{$account}->{$channel}->{offenses}\n");
|
|
|
|
given ($self->{offenses}->{$account}->{$channel}->{offenses}) {
|
|
when (1) {
|
|
$self->{pbot}->{chanops}->add_op_command($channel, "kick $channel $nick Stop repeating yourself");
|
|
$self->{pbot}->{chanops}->gain_ops($channel);
|
|
}
|
|
when (2) {
|
|
$self->{pbot}->{chanops}->ban_user_timed($botnick, 'repeating messages', "*!*\@$host", $channel, 60);
|
|
}
|
|
when (3) {
|
|
$self->{pbot}->{chanops}->ban_user_timed($botnick, 'repeating messages', "*!*\@$host", $channel, 60 * 15);
|
|
}
|
|
default {
|
|
$self->{pbot}->{chanops}->ban_user_timed($botnick, 'repeating messages', "*!*\@$host", $channel, 60 * 60);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub adjust_offenses {
|
|
my $self = shift;
|
|
my $now = gettimeofday;
|
|
|
|
foreach my $account (keys %{ $self->{offenses} }) {
|
|
foreach my $channel (keys %{ $self->{offenses}->{$account} }) {
|
|
if ($self->{offenses}->{$account}->{$channel}->{offenses} > 0 and $now - $self->{offenses}->{$account}->{$channel}->{last_adjustment} > 60 * 60 * 3) {
|
|
$self->{offenses}->{$account}->{$channel}->{offenses}--;
|
|
|
|
if ($self->{offenses}->{$account}->{$channel}->{offenses} <= 0) {
|
|
delete $self->{offenses}->{$account}->{$channel};
|
|
if (keys %{ $self->{offenses}->{$account} } == 0) {
|
|
delete $self->{offenses}->{$account};
|
|
}
|
|
} else {
|
|
$self->{offenses}->{$account}->{$channel}->{last_adjustment} = $now;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
1;
|