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pbot/lib/PBot/Plugin/AntiKickAutoRejoin.pm
2023-04-13 17:01:23 -07:00

81 lines
3.1 KiB
Perl

# File: AntiKickAutoRejoin.pm
#
# Purpose: Temporarily bans people who immediately auto-rejoin after a kick.
# SPDX-FileCopyrightText: 2014-2023 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Plugin::AntiKickAutoRejoin;
use parent 'PBot::Plugin::Base';
use PBot::Imports;
use Time::HiRes qw/gettimeofday/;
use Time::Duration;
sub initialize($self, %conf) {
$self->{pbot}->{registry}->add_default('array', 'antikickautorejoin', 'punishment', '30,90,180,300,28800');
$self->{pbot}->{registry}->add_default('text', 'antikickautorejoin', 'threshold', '2');
$self->{pbot}->{event_dispatcher}->register_handler('irc.kick', sub { $self->on_kick(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.join', sub { $self->on_join(@_) });
$self->{kicks} = {};
}
sub unload($self) {
$self->{pbot}->{event_dispatcher}->remove_handler('irc.kick');
$self->{pbot}->{event_dispatcher}->remove_handler('irc.join');
}
sub on_kick($self, $event_type, $event) {
my ($nick, $user, $host) = ($event->nick, $event->user, $event->host);
my ($target, $channel, $reason) = ($event->to, $event->{args}[0], $event->{args}[1]);
$channel = lc $channel;
return 0 if not $self->{pbot}->{chanops}->can_gain_ops($channel);
return 0 if $reason eq '*BANG!*'; # roulette
if (not exists $self->{kicks}->{$channel} or not exists $self->{kicks}->{$channel}->{$target}) {
$self->{kicks}->{$channel}->{$target}->{rejoins} = 0;
}
$self->{kicks}->{$channel}->{$target}->{last_kick} = gettimeofday;
return 0;
}
sub on_join($self, $event_type, $event) {
my ($nick, $user, $host, $channel) = ($event->nick, $event->user, $event->host, $event->to);
$channel = lc $channel;
return 0 if not $self->{pbot}->{chanops}->can_gain_ops($channel);
my $u = $self->{pbot}->{users}->loggedin($channel, "$nick!$user\@$host");
return 0 if $self->{pbot}->{capabilities}->userhas($u, 'is-whitelisted');
if (exists $self->{kicks}->{$channel} and exists $self->{kicks}->{$channel}->{$nick}) {
my $now = gettimeofday;
if ($now - $self->{kicks}->{$channel}->{$nick}->{last_kick} <= $self->{pbot}->{registry}->get_value('antikickautorejoin', 'threshold')) {
my $timeout = $self->{pbot}->{registry}->get_array_value('antikickautorejoin', 'punishment', $self->{kicks}->{$channel}->{$nick}->{rejoins});
my $duration = duration($timeout);
$duration =~ s/s$//; # hours -> hour, minutes -> minute
$self->{pbot}->{banlist}->ban_user_timed(
$channel,
'b',
"*!$user\@$host",
$timeout,
$self->{pbot}->{registry}->get_value('irc', 'botnick'),
'autorejoining after kick',
);
$self->{pbot}->{chanops}->add_op_command($channel, "kick $channel $nick $duration ban for auto-rejoining after kick; use this time to think about why you were kicked");
$self->{pbot}->{chanops}->gain_ops($channel);
$self->{kicks}->{$channel}->{$nick}->{rejoins}++;
}
}
return 0;
}
1;