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192 lines
6.7 KiB
Perl
192 lines
6.7 KiB
Perl
# File: Server.pm
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#
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# Purpose: Handles server-related IRC events.
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# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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package PBot::Core::Handlers::Server;
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use PBot::Imports;
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use parent 'PBot::Core::Class';
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use PBot::Core::MessageHistory::Constants ':all';
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use Time::HiRes qw/time/;
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sub initialize {
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my ($self, %conf) = @_;
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$self->{pbot}->{event_dispatcher}->register_handler('irc.welcome', sub { $self->on_welcome (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.disconnect', sub { $self->on_disconnect (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.motd', sub { $self->on_motd (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.notice', sub { $self->on_notice (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.nick', sub { $self->on_nickchange (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.isupport', sub { $self->on_isupport (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.yourhost', sub { $self->log_first_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.created', sub { $self->log_first_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.luserconns', sub { $self->log_first_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.notregistered', sub { $self->log_first_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.n_local', sub { $self->log_third_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.n_global', sub { $self->log_third_arg (@_) });
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$self->{pbot}->{event_dispatcher}->register_handler('irc.nononreg', sub { $self->on_nononreg (@_) });
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}
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sub on_init {
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my ($self, $conn, $event) = @_;
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my (@args) = ($event->args);
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shift @args;
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$self->{pbot}->{logger}->log("*** @args\n");
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return 1;
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}
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sub on_welcome {
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my ($self, $event_type, $event) = @_;
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$self->{pbot}->{logger}->log("Welcome!\n");
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if ($self->{pbot}->{irc_capabilities}->{sasl}) {
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# using SASL; go ahead and auto-join channels now
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$self->{pbot}->{logger}->log("Autojoining channels.\n");
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$self->{pbot}->{channels}->autojoin;
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}
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return 1;
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}
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sub on_disconnect {
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my ($self, $event_type, $event) = @_;
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$self->{pbot}->{logger}->log("Disconnected...\n");
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$self->{pbot}->{conn} = undef;
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# send pbot.disconnect to notify PBot internals
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$self->{pbot}->{event_dispatcher}->dispatch_event(
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'pbot.disconnect', undef
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);
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# attempt to reconnect to server
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# TODO: maybe add a registry entry to control whether the bot auto-reconnects
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$self->{pbot}->connect;
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return 1;
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}
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sub on_motd {
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my ($self, $event_type, $event) = @_;
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if ($self->{pbot}->{registry}->get_value('irc', 'show_motd')) {
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my $from = $event->{event}->{from};
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my $msg = $event->{event}->{args}->[1];
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$self->{pbot}->{logger}->log("MOTD from $from :: $msg\n");
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}
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return 1;
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}
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sub on_notice {
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my ($self, $event_type, $event) = @_;
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my ($server, $to, $text) = (
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$event->{event}->nick,
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$event->{event}->to,
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$event->{event}->{args}->[0],
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);
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# don't handle non-server NOTICE
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return undef if $to ne '*';
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# log notice
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$self->{pbot}->{logger}->log("NOTICE from $server: $text\n");
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return 1;
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}
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sub on_isupport {
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my ($self, $event_type, $event) = @_;
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# remove and discard first and last arguments
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# (first arg is botnick, last arg is "are supported by this server")
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shift @{$event->{event}->{args}};
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pop @{$event->{event}->{args}};
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my $logmsg = "$event->{event}->{from} supports:";
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foreach my $arg (@{$event->{event}->{args}}) {
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my ($key, $value) = split /=/, $arg;
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if ($key =~ s/^-//) {
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# server removed suppport for this key
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delete $self->{pbot}->{isupport}->{$key};
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} else {
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$self->{pbot}->{isupport}->{$key} = $value // 1;
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}
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$logmsg .= defined $value ? " $key=$value" : " $key";
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}
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$self->{pbot}->{logger}->log("$logmsg\n");
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return 1;
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}
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sub on_nickchange {
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my ($self, $event_type, $event) = @_;
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my ($nick, $user, $host, $newnick) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);
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($nick, $user, $host) = $self->{pbot}->{irchandlers}->normalize_hostmask($nick, $user, $host);
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$self->{pbot}->{logger}->log("[NICKCHANGE] $nick!$user\@$host changed nick to $newnick\n");
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if ($newnick eq $self->{pbot}->{registry}->get_value('irc', 'botnick') and not $self->{pbot}->{joined_channels}) {
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$self->{pbot}->{channels}->autojoin;
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return 1;
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}
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my $message_account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
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$self->{pbot}->{messagehistory}->{database}->devalidate_all_channels($message_account, $self->{pbot}->{antiflood}->{NEEDS_CHECKBAN});
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my $channels = $self->{pbot}->{nicklist}->get_channels($nick);
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foreach my $channel (@$channels) {
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next if $channel !~ m/^#/;
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$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $channel, "NICKCHANGE $newnick", MSG_NICKCHANGE);
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}
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$self->{pbot}->{messagehistory}->{database}->update_hostmask_data("$nick!$user\@$host", {last_seen => scalar time});
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my $newnick_account = $self->{pbot}->{messagehistory}->{database}->get_message_account($newnick, $user, $host, $nick);
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$self->{pbot}->{messagehistory}->{database}->devalidate_all_channels($newnick_account, $self->{pbot}->{antiflood}->{NEEDS_CHECKBAN});
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$self->{pbot}->{messagehistory}->{database}->update_hostmask_data("$newnick!$user\@$host", {last_seen => scalar time});
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$self->{pbot}->{antiflood}->check_flood(
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"$nick!$user\@$host", $nick, $user, $host, "NICKCHANGE $newnick",
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$self->{pbot}->{registry}->get_value('antiflood', 'nick_flood_threshold'),
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$self->{pbot}->{registry}->get_value('antiflood', 'nick_flood_time_threshold'),
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MSG_NICKCHANGE,
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);
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return 1;
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}
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sub on_nononreg {
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my ($self, $event_type, $event) = @_;
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my $target = $event->{event}->{args}->[1];
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$self->{pbot}->{logger}->log("Cannot send private /msg to $target; they are blocking unidentified /msgs.\n");
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return 1;
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}
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sub log_first_arg {
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my ($self, $event_type, $event) = @_;
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$self->{pbot}->{logger}->log("$event->{event}->{args}->[1]\n");
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return 1;
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}
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sub log_third_arg {
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my ($self, $event_type, $event) = @_;
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$self->{pbot}->{logger}->log("$event->{event}->{args}->[3]\n");
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return 1;
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}
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1;
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