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pbot/PBot/NickList.pm

360 lines
11 KiB
Perl

# File: NickList.pm
# Author: pragma_
#
# Purpose: Maintains lists of nicks currently present in channels.
# Used to retrieve list of channels a nick is present in or to
# determine if a nick is present in a channel.
# 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 PBot::NickList;
use warnings;
use strict;
use feature 'unicode_strings';
use Text::Levenshtein qw/fastdistance/;
use Data::Dumper;
$Data::Dumper::Sortkeys = 1;
use Carp ();
use Time::HiRes qw/gettimeofday/;
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->{nicklist} = {};
$self->{pbot}->{registry}->add_default('text', 'nicklist', 'debug', '0');
$self->{pbot}->{commands}->register(sub { $self->show_nicklist(@_) }, "nicklist", 0);
$self->{pbot}->{event_dispatcher}->register_handler('irc.namreply', sub { $self->on_namreply(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.join', sub { $self->on_join(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.part', sub { $self->on_part(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.quit', sub { $self->on_quit(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.kick', sub { $self->on_kick(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.nick', sub { $self->on_nickchange(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.public', sub { $self->on_activity(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_activity(@_) });
# handlers for the bot itself joining/leaving channels
$self->{pbot}->{event_dispatcher}->register_handler('pbot.join', sub { $self->on_join_channel(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('pbot.part', sub { $self->on_part_channel(@_) });
}
sub show_nicklist {
my ($self, $from, $nick, $user, $host, $arguments) = @_;
my $nicklist;
return "Usage: nicklist <channel> [nick]" if not length $arguments;
my @args = split / /, $arguments;
if (@args == 1) {
if (not exists $self->{nicklist}->{lc $arguments}) {
return "No nicklist for $arguments.";
}
$nicklist = Dumper($self->{nicklist}->{lc $arguments});
} else {
if (not exists $self->{nicklist}->{lc $args[0]}) {
return "No nicklist for $args[0].";
} elsif (not exists $self->{nicklist}->{lc $args[0]}->{lc $args[1]}) {
return "No such nick $args[1] in channel $args[0].";
}
$nicklist = Dumper($self->{nicklist}->{lc $args[0]}->{lc $args[1]});
}
return $nicklist;
}
sub update_timestamp {
my ($self, $channel, $nick) = @_;
my $orig_nick = $nick;
$channel = lc $channel;
$nick = lc $nick;
if (exists $self->{nicklist}->{$channel} and exists $self->{nicklist}->{$channel}->{$nick}) {
$self->{nicklist}->{$channel}->{$nick}->{timestamp} = gettimeofday;
} else {
$self->{pbot}->{logger}->log("Adding nick '$orig_nick' to channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
$self->{nicklist}->{$channel}->{$nick} = { nick => $orig_nick, timestamp => scalar gettimeofday };
}
}
sub remove_channel {
my ($self, $channel) = @_;
delete $self->{nicklist}->{lc $channel};
}
sub add_nick {
my ($self, $channel, $nick) = @_;
if (not exists $self->{nicklist}->{lc $channel}->{lc $nick}) {
$self->{pbot}->{logger}->log("Adding nick '$nick' to channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
$self->{nicklist}->{lc $channel}->{lc $nick} = { nick => $nick, timestamp => 0 };
}
}
sub remove_nick {
my ($self, $channel, $nick) = @_;
$self->{pbot}->{logger}->log("Removing nick '$nick' from channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
delete $self->{nicklist}->{lc $channel}->{lc $nick};
}
sub get_channels {
my ($self, $nick) = @_;
my @channels;
$nick = lc $nick;
foreach my $channel (keys %{ $self->{nicklist} }) {
if (exists $self->{nicklist}->{$channel}->{$nick}) {
push @channels, $channel;
}
}
return \@channels;
}
sub set_meta {
my ($self, $channel, $nick, $key, $value) = @_;
$channel = lc $channel;
$nick = lc $nick;
if (not exists $self->{nicklist}->{$channel} or not exists $self->{nicklist}->{$channel}->{$nick}) {
if (exists $self->{nicklist}->{$channel} and $nick =~ m/[*?]/) {
my $regex = quotemeta $nick;
$regex =~ s/\\\*/.*?/g;
$regex =~ s/\\\?/./g;
my $found = 0;
foreach my $n (keys %{$self->{nicklist}->{$channel}}) {
if ($self->{nicklist}->{$channel}->{$n}->{hostmask} =~ m/$regex/i) {
$self->{nicklist}->{$channel}->{$n}->{$key} = $value;
$found++;
}
}
return $found;
} else {
$self->{pbot}->{logger}->log("Nicklist: Attempt to set invalid meta ($key => $value) for $nick in $channel.\n");
return 0;
}
}
$self->{nicklist}->{$channel}->{$nick}->{$key} = $value;
return 1;
}
sub delete_meta {
my ($self, $channel, $nick, $key) = @_;
$channel = lc $channel;
$nick = lc $nick;
if (not exists $self->{nicklist}->{$channel}
or not exists $self->{nicklist}->{$channel}->{$nick}
or not exists $self->{nicklist}->{$channel}->{$nick}->{$key}) {
return undef;
}
return delete $self->{nicklist}->{$channel}->{$nick}->{$key};
}
sub get_meta {
my ($self, $channel, $nick, $key) = @_;
$channel = lc $channel;
$nick = lc $nick;
if (not exists $self->{nicklist}->{$channel}
or not exists $self->{nicklist}->{$channel}->{$nick}
or not exists $self->{nicklist}->{$channel}->{$nick}->{$key}) {
return undef;
}
return $self->{nicklist}->{$channel}->{$nick}->{$key};
}
sub is_present_any_channel {
my ($self, $nick) = @_;
$nick = lc $nick;
foreach my $channel (keys %{ $self->{nicklist} }) {
if (exists $self->{nicklist}->{$channel}->{$nick}) {
return $self->{nicklist}->{$channel}->{$nick}->{nick};
}
}
return 0;
}
sub is_present {
my ($self, $channel, $nick) = @_;
$channel = lc $channel;
$nick = lc $nick;
if (exists $self->{nicklist}->{$channel} and exists $self->{nicklist}->{$channel}->{$nick}) {
return $self->{nicklist}->{$channel}->{$nick}->{nick};
} else {
return 0;
}
}
sub is_present_similar {
my ($self, $channel, $nick, $similar) = @_;
$channel = lc $channel;
$nick = lc $nick;
return 0 if not exists $self->{nicklist}->{$channel};
return $self->{nicklist}->{$channel}->{$nick}->{nick} if $self->is_present($channel, $nick);
return 0 if $nick =~ m/(?:^\$|\s)/; # not nick-like
my $percentage = $self->{pbot}->{registry}->get_value('interpreter', 'nick_similarity');
$percentage = 0.20 if not defined $percentage;
$percentage = $similar if defined $similar;
my $now = gettimeofday;
foreach my $person (sort { $self->{nicklist}->{$channel}->{$b}->{timestamp} <=> $self->{nicklist}->{$channel}->{$a}->{timestamp} } keys %{ $self->{nicklist}->{$channel} }) {
return 0 if $now - $self->{nicklist}->{$channel}->{$person}->{timestamp} > 3600; # 1 hour
my $distance = fastdistance($nick, $person);
my $length = length $nick > length $person ? length $nick : length $person;
if ($length != 0 && $distance / $length <= $percentage) {
return $self->{nicklist}->{$channel}->{$person}->{nick};
}
}
return 0;
}
sub random_nick {
my ($self, $channel) = @_;
$channel = lc $channel;
if (exists $self->{nicklist}->{$channel}) {
my $now = gettimeofday;
my @nicks = grep { $now - $self->{nicklist}->{$channel}->{$_}->{timestamp} < 3600 * 2 } keys %{ $self->{nicklist}->{$channel} };
my $nick = $nicks[rand @nicks];
return $self->{nicklist}->{$channel}->{$nick}->{nick};
} else {
return undef;
}
}
sub on_namreply {
my ($self, $event_type, $event) = @_;
my ($channel, $nicks) = ($event->{event}->{args}[2], $event->{event}->{args}[3]);
foreach my $nick (split ' ', $nicks) {
my $stripped_nick = $nick;
$stripped_nick =~ s/^[@+%]//g; # remove OP/Voice/etc indicator from nick
$self->add_nick($channel, $stripped_nick);
my ($account_id, $hostmask) = $self->{pbot}->{messagehistory}->{database}->find_message_account_by_nick($stripped_nick);
if (defined $hostmask) {
my ($user, $host) = $hostmask =~ m/[^!]+!([^@]+)@(.*)/;
$self->set_meta($channel, $stripped_nick, 'hostmask', $hostmask);
$self->set_meta($channel, $stripped_nick, 'user', $user);
$self->set_meta($channel, $stripped_nick, 'host', $host);
}
if ($nick =~ m/\@/) {
$self->set_meta($channel, $stripped_nick, '+o', 1);
}
if ($nick =~ m/\+/) {
$self->set_meta($channel, $stripped_nick, '+v', 1);
}
if ($nick =~ m/\%/) {
$self->set_meta($channel, $stripped_nick, '+h', 1);
}
}
return 0;
}
sub on_activity {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->{to}[0]);
$self->update_timestamp($channel, $nick);
return 0;
}
sub on_join {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to);
$self->add_nick($channel, $nick);
$self->set_meta($channel, $nick, 'hostmask', "$nick!$user\@$host");
$self->set_meta($channel, $nick, 'user', $user);
$self->set_meta($channel, $nick, 'host', $host);
return 0;
}
sub on_part {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to);
$self->remove_nick($channel, $nick);
return 0;
}
sub on_quit {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host);
foreach my $channel (keys %{ $self->{nicklist} }) {
if ($self->is_present($channel, $nick)) {
$self->remove_nick($channel, $nick);
}
}
return 0;
}
sub on_kick {
my ($self, $event_type, $event) = @_;
my ($nick, $channel) = ($event->{event}->to, $event->{event}->{args}[0]);
$self->remove_nick($channel, $nick);
return 0;
}
sub on_nickchange {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $newnick) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);
foreach my $channel (keys %{ $self->{nicklist} }) {
if ($self->is_present($channel, $nick)) {
my $meta = delete $self->{nicklist}->{$channel}->{lc $nick};
$meta->{nick} = $newnick;
$meta->{timestamp} = gettimeofday;
$self->{nicklist}->{$channel}->{lc $newnick} = $meta;
}
}
return 0;
}
sub on_join_channel {
my ($self, $event_type, $event) = @_;
$self->remove_channel($event->{channel}); # clear nicklist to remove any stale nicks before repopulating with namreplies
return 0;
}
sub on_part_channel {
my ($self, $event_type, $event) = @_;
$self->remove_channel($event->{channel});
return 0;
}
1;