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Add TypoSub plugin

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Pragmatic Software 2020-01-31 01:56:20 -08:00
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# 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::TypoSub;
# purpose: Replaces "typos" with "corrections".
#
# Examples:
#
# <alice> i like dogs
# <bob> s/dogs/cats/
# <PBot> bob thinks alice meant to say: i like cats
#
# <alice> i like candy
# <alice> s/like/love/
# <PBot> alice meant to say: i love candy
use warnings;
use strict;
use feature 'unicode_strings';
use Carp ();
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}->{event_dispatcher}->register_handler('irc.public', sub { $self->on_public(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_public(@_) });
}
sub unload {
# nothing to do here
}
sub on_public {
my ($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);
my $nosubs = $self->{pbot}->{registry}->get_value($channel, 'notyposub');
return 0 if defined $nosubs and not $nosubs;
return 0 if $channel !~ m/^#/;
return 0 if $event->{interpreted};
if ($msg =~ m/^\s*s([[:punct:]])/) {
my $separator = $1;
my $sep = quotemeta $separator;
if ($msg =~ m/^\s*s${sep}(.*?)(?<!\\)${sep}(.*?)(?<!\\)${sep}([g]*)\s*$/) {
my ($regex, $replacement, $modifiers) = ($1, $2, $3);
eval {
my $rx = qr/$regex/;
my $messages = $self->{pbot}->{messagehistory}->{database}->get_recent_messages_from_channel($channel, 50, $self->{pbot}->{messagehistory}->{MSG_CHAT}, 'DESC');
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 $ignore_commands = $self->{pbot}->{registry}->get_value($channel, 'typosub_ignore_commands')
// $self->{pbot}->{registry}->get_value('typosub', 'ignore_commands') // 1;
foreach my $message (@$messages) {
next if $ignore_commands and $message->{msg} =~ m/^(?:$bot_trigger|$botnick.?)/;
next if $message->{msg} =~ m/^\s*s[[:punct:]](.*?)[[:punct:]](.*?)[[:punct:]]g?\s*$/;
if ($message->{msg} =~ /$rx/) {
my $hostmask = $self->{pbot}->{messagehistory}->{database}->find_message_account_by_id($message->{id});
my ($target) = $hostmask =~ m/([^!]+)/;
my $result;
if ($nick eq $target) {
$result = "$nick meant to say: ";
} else {
$result = "$nick thinks $target meant to say: ";
}
my $text = $message->{msg};
if ($modifiers =~ m/g/) {
$text =~ s/$rx/$replacement/g;
} else {
$text =~ s/$rx/$replacement/;
}
$event->{conn}->privmsg($channel, "$result$text");
return 0;
}
}
};
if ($@) {
my $error = "Error in `s${separator}${regex}${separator}${replacement}${separator}${modifiers}`: $@";
$error =~ s/ at .*$//;
$event->{conn}->privmsg($channel, $error);
return 0;
}
}
}
return 0;
}
1;