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333 lines
12 KiB
Perl
333 lines
12 KiB
Perl
# File: NickList.pm
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# Author: pragma_
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#
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# Purpose: Maintains lists of nicks currently present in channels.
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# Used to retrieve list of channels a nick is present in or to
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# determine if a nick is present in a channel.
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package PBot::NickList;
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use parent 'PBot::Class';
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use warnings; use strict;
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use feature 'unicode_strings';
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use Text::Levenshtein qw/fastdistance/;
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use Data::Dumper;
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$Data::Dumper::Sortkeys = 1;
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use Time::HiRes qw/gettimeofday/;
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sub initialize {
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my ($self, %conf) = @_;
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$self->{nicklist} = {};
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$self->{pbot}->{registry}->add_default('text', 'nicklist', 'debug', '0');
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$self->{pbot}->{commands}->register(sub { $self->show_nicklist(@_) }, "nicklist", 0);
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$self->{pbot}->{event_dispatcher}->register_handler('irc.namreply', sub { $self->on_namreply(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.join', sub { $self->on_join(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.part', sub { $self->on_part(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.quit', sub { $self->on_quit(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.kick', sub { $self->on_kick(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.nick', sub { $self->on_nickchange(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.public', sub { $self->on_activity(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_activity(@_) });
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# handlers for the bot itself joining/leaving channels
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$self->{pbot}->{event_dispatcher}->register_handler('pbot.join', sub { $self->on_join_channel(@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('pbot.part', sub { $self->on_part_channel(@_) });
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}
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sub show_nicklist {
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my ($self, $from, $nick, $user, $host, $arguments) = @_;
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my $nicklist;
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return "Usage: nicklist <channel> [nick]" if not length $arguments;
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my @args = split / /, $arguments;
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if (@args == 1) {
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if (not exists $self->{nicklist}->{lc $arguments}) { return "No nicklist for $arguments."; }
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$nicklist = Dumper($self->{nicklist}->{lc $arguments});
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} else {
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if (not exists $self->{nicklist}->{lc $args[0]}) { return "No nicklist for $args[0]."; }
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elsif (not exists $self->{nicklist}->{lc $args[0]}->{lc $args[1]}) { return "No such nick $args[1] in channel $args[0]."; }
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$nicklist = Dumper($self->{nicklist}->{lc $args[0]}->{lc $args[1]});
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}
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return $nicklist;
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}
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sub update_timestamp {
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my ($self, $channel, $nick) = @_;
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my $orig_nick = $nick;
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$channel = lc $channel;
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$nick = lc $nick;
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if (exists $self->{nicklist}->{$channel} and exists $self->{nicklist}->{$channel}->{$nick}) { $self->{nicklist}->{$channel}->{$nick}->{timestamp} = gettimeofday; }
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else {
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$self->{pbot}->{logger}->log("Adding nick '$orig_nick' to channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
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$self->{nicklist}->{$channel}->{$nick} = {nick => $orig_nick, timestamp => scalar gettimeofday};
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}
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}
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sub remove_channel {
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my ($self, $channel) = @_;
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delete $self->{nicklist}->{lc $channel};
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}
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sub add_nick {
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my ($self, $channel, $nick) = @_;
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if (not exists $self->{nicklist}->{lc $channel}->{lc $nick}) {
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$self->{pbot}->{logger}->log("Adding nick '$nick' to channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
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$self->{nicklist}->{lc $channel}->{lc $nick} = {nick => $nick, timestamp => 0};
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}
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}
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sub remove_nick {
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my ($self, $channel, $nick) = @_;
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$self->{pbot}->{logger}->log("Removing nick '$nick' from channel '$channel'\n") if $self->{pbot}->{registry}->get_value('nicklist', 'debug');
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delete $self->{nicklist}->{lc $channel}->{lc $nick};
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}
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sub get_channels {
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my ($self, $nick) = @_;
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my @channels;
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$nick = lc $nick;
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foreach my $channel (keys %{$self->{nicklist}}) {
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if (exists $self->{nicklist}->{$channel}->{$nick}) { push @channels, $channel; }
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}
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return \@channels;
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}
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sub get_nicks {
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my ($self, $channel) = @_;
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$channel = lc $channel;
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my @nicks;
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return @nicks if not exists $self->{nicklist}->{$channel};
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foreach my $nick (keys %{$self->{nicklist}->{$channel}}) { push @nicks, $self->{nicklist}->{$channel}->{$nick}->{nick}; }
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return @nicks;
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}
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sub set_meta {
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my ($self, $channel, $nick, $key, $value) = @_;
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$channel = lc $channel;
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$nick = lc $nick;
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if (not exists $self->{nicklist}->{$channel} or not exists $self->{nicklist}->{$channel}->{$nick}) {
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if (exists $self->{nicklist}->{$channel} and $nick =~ m/[*?]/) {
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my $regex = quotemeta $nick;
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$regex =~ s/\\\*/.*?/g;
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$regex =~ s/\\\?/./g;
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my $found = 0;
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foreach my $n (keys %{$self->{nicklist}->{$channel}}) {
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if (exists $self->{nicklist}->{$channel}->{$n}->{hostmask} and $self->{nicklist}->{$channel}->{$n}->{hostmask} =~ m/$regex/i) {
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$self->{nicklist}->{$channel}->{$n}->{$key} = $value;
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$found++;
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}
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}
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return $found;
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} else {
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$self->{pbot}->{logger}->log("Nicklist: Attempt to set invalid meta ($key => $value) for $nick in $channel.\n");
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return 0;
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}
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}
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$self->{nicklist}->{$channel}->{$nick}->{$key} = $value;
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return 1;
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}
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sub delete_meta {
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my ($self, $channel, $nick, $key) = @_;
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$channel = lc $channel;
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$nick = lc $nick;
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if (not exists $self->{nicklist}->{$channel} or not exists $self->{nicklist}->{$channel}->{$nick} or not exists $self->{nicklist}->{$channel}->{$nick}->{$key}) {
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return undef;
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}
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return delete $self->{nicklist}->{$channel}->{$nick}->{$key};
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}
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sub get_meta {
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my ($self, $channel, $nick, $key) = @_;
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$channel = lc $channel;
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$nick = lc $nick;
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if (not exists $self->{nicklist}->{$channel} or not exists $self->{nicklist}->{$channel}->{$nick} or not exists $self->{nicklist}->{$channel}->{$nick}->{$key}) {
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return undef;
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}
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return $self->{nicklist}->{$channel}->{$nick}->{$key};
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}
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sub is_present_any_channel {
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my ($self, $nick) = @_;
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$nick = lc $nick;
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foreach my $channel (keys %{$self->{nicklist}}) {
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if (exists $self->{nicklist}->{$channel}->{$nick}) { return $self->{nicklist}->{$channel}->{$nick}->{nick}; }
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}
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return 0;
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}
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sub is_present {
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my ($self, $channel, $nick) = @_;
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$channel = lc $channel;
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$nick = lc $nick;
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if (exists $self->{nicklist}->{$channel} and exists $self->{nicklist}->{$channel}->{$nick}) { return $self->{nicklist}->{$channel}->{$nick}->{nick}; }
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else { return 0; }
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}
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sub is_present_similar {
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my ($self, $channel, $nick, $similar) = @_;
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$channel = lc $channel;
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$nick = lc $nick;
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return 0 if not exists $self->{nicklist}->{$channel};
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return $self->{nicklist}->{$channel}->{$nick}->{nick} if $self->is_present($channel, $nick);
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return 0 if $nick =~ m/(?:^\$|\s)/; # not nick-like
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my $percentage = $self->{pbot}->{registry}->get_value('interpreter', 'nick_similarity');
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$percentage = 0.20 if not defined $percentage;
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$percentage = $similar if defined $similar;
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my $now = gettimeofday;
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foreach my $person (sort { $self->{nicklist}->{$channel}->{$b}->{timestamp} <=> $self->{nicklist}->{$channel}->{$a}->{timestamp} } keys %{$self->{nicklist}->{$channel}})
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{
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return 0 if $now - $self->{nicklist}->{$channel}->{$person}->{timestamp} > 3600; # 1 hour
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my $distance = fastdistance($nick, $person);
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my $length = length $nick > length $person ? length $nick : length $person;
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if ($length != 0 && $distance / $length <= $percentage) { return $self->{nicklist}->{$channel}->{$person}->{nick}; }
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}
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return 0;
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}
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sub random_nick {
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my ($self, $channel) = @_;
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$channel = lc $channel;
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if (exists $self->{nicklist}->{$channel}) {
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my $now = gettimeofday;
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my @nicks = grep { $now - $self->{nicklist}->{$channel}->{$_}->{timestamp} < 3600 * 2 } keys %{$self->{nicklist}->{$channel}};
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my $nick = $nicks[rand @nicks];
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return $self->{nicklist}->{$channel}->{$nick}->{nick};
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} else {
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return undef;
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}
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}
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sub on_namreply {
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my ($self, $event_type, $event) = @_;
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my ($channel, $nicks) = ($event->{event}->{args}[2], $event->{event}->{args}[3]);
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foreach my $nick (split ' ', $nicks) {
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my $stripped_nick = $nick;
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$stripped_nick =~ s/^[@+%]//g; # remove OP/Voice/etc indicator from nick
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$self->add_nick($channel, $stripped_nick);
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my ($account_id, $hostmask) = $self->{pbot}->{messagehistory}->{database}->find_message_account_by_nick($stripped_nick);
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if (defined $hostmask) {
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my ($user, $host) = $hostmask =~ m/[^!]+!([^@]+)@(.*)/;
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$self->set_meta($channel, $stripped_nick, 'hostmask', $hostmask);
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$self->set_meta($channel, $stripped_nick, 'user', $user);
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$self->set_meta($channel, $stripped_nick, 'host', $host);
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}
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if ($nick =~ m/\@/) { $self->set_meta($channel, $stripped_nick, '+o', 1); }
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if ($nick =~ m/\+/) { $self->set_meta($channel, $stripped_nick, '+v', 1); }
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if ($nick =~ m/\%/) { $self->set_meta($channel, $stripped_nick, '+h', 1); }
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}
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return 0;
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}
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sub on_activity {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->{to}[0]);
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$self->update_timestamp($channel, $nick);
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return 0;
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}
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sub on_join {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to);
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$self->add_nick($channel, $nick);
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$self->set_meta($channel, $nick, 'hostmask', "$nick!$user\@$host");
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$self->set_meta($channel, $nick, 'user', $user);
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$self->set_meta($channel, $nick, 'host', $host);
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return 0;
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}
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sub on_part {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to);
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$self->remove_nick($channel, $nick);
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return 0;
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}
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sub on_quit {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host);
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foreach my $channel (keys %{$self->{nicklist}}) {
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if ($self->is_present($channel, $nick)) { $self->remove_nick($channel, $nick); }
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}
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return 0;
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}
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sub on_kick {
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my ($self, $event_type, $event) = @_;
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my ($nick, $channel) = ($event->{event}->to, $event->{event}->{args}[0]);
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$self->remove_nick($channel, $nick);
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return 0;
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}
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sub on_nickchange {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host, $newnick) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);
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foreach my $channel (keys %{$self->{nicklist}}) {
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if ($self->is_present($channel, $nick)) {
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my $meta = delete $self->{nicklist}->{$channel}->{lc $nick};
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$meta->{nick} = $newnick;
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$meta->{timestamp} = gettimeofday;
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$self->{nicklist}->{$channel}->{lc $newnick} = $meta;
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}
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}
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return 0;
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}
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sub on_join_channel {
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my ($self, $event_type, $event) = @_;
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$self->remove_channel($event->{channel}); # clear nicklist to remove any stale nicks before repopulating with namreplies
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return 0;
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}
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sub on_part_channel {
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my ($self, $event_type, $event) = @_;
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$self->remove_channel($event->{channel});
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return 0;
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}
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1;
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