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pbot/PBot/IRCHandlers.pm
2017-09-02 00:39:29 -07:00

563 lines
22 KiB
Perl

# File: IRCHandlers.pm
# Author: pragma_
#
# Purpose: Subroutines to handle IRC events
# 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::IRCHandlers;
use warnings;
use strict;
use Carp();
use Time::HiRes qw(gettimeofday);
use Data::Dumper;
sub new {
if(ref($_[1]) eq 'HASH') {
Carp::croak("Options to " . __FILE__ . " should be key/value pairs, not hash reference");
}
my ($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 parameter to " . __FILE__) if not defined $self->{pbot};
$self->{pbot}->{event_dispatcher}->register_handler('irc.welcome', sub { $self->on_connect(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.disconnect', sub { $self->on_disconnect(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.motd', sub { $self->on_motd(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.notice', sub { $self->on_notice(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.public', sub { $self->on_public(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_action(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.msg', sub { $self->on_msg(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.mode', sub { $self->on_mode(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.part', sub { $self->on_departure(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.join', sub { $self->on_join(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.kick', sub { $self->on_kick(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.quit', sub { $self->on_departure(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.nick', sub { $self->on_nickchange(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.nicknameinuse', sub { $self->on_nicknameinuse(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.invite', sub { $self->on_invite(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.cap', sub { $self->on_cap(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.map', sub { $self->on_map(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.whospcrpl', sub { $self->on_whospcrpl(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('irc.endofwho', sub { $self->on_endofwho(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('pbot.join', sub { $self->on_self_join(@_) });
$self->{pbot}->{event_dispatcher}->register_handler('pbot.part', sub { $self->on_self_part(@_) });
$self->{pbot}->{timer}->register(sub { $self->check_pending_whos }, 10);
}
sub default_handler {
my ($self, $conn, $event) = @_;
if(not defined $self->{pbot}->{event_dispatcher}->dispatch_event("irc.$event->{type}", { conn => $conn, event => $event })) {
if ($self->{pbot}->{registry}->get_value('irc', 'log_default_handler')) {
$self->{pbot}->{logger}->log(Dumper $event);
}
}
}
sub on_init {
my ($self, $conn, $event) = @_;
my (@args) = ($event->args);
shift (@args);
$self->{pbot}->{logger}->log("*** @args\n");
}
sub on_connect {
my ($self, $event_type, $event) = @_;
$self->{pbot}->{logger}->log("Connected!\n");
$event->{conn}->{connected} = 1;
$self->{pbot}->{logger}->log("Requesting account-notify and extended-join . . .\n");
$event->{conn}->sl("CAP REQ :account-notify extended-join");
$self->{pbot}->{logger}->log("Identifying with NickServ . . .\n");
$event->{conn}->privmsg("nickserv", "identify " . $self->{pbot}->{registry}->get_value('irc', 'botnick') . ' ' . $self->{pbot}->{registry}->get_value('irc', 'identify_password'));
return 0;
}
sub on_disconnect {
my ($self, $event_type, $event) = @_;
$self->{pbot}->{logger}->log("Disconnected...\n");
$self->{pbot}->{connected} = 0;
return 0;
}
sub on_motd {
my ($self, $event_type, $event) = @_;
if ($self->{pbot}->{registry}->get_value('irc', 'show_motd')) {
my $server = $event->{event}->{from};
my $msg = $event->{event}->{args}[1];
$self->{pbot}->{logger}->log("MOTD from $server :: $msg\n");
}
return 0;
}
sub on_self_join {
my ($self, $event_type, $event) = @_;
$self->send_who($event->{channel});
return 0;
}
sub on_self_part {
my ($self, $event_type, $event) = @_;
return 0;
}
sub on_public {
my ($self, $event_type, $event) = @_;
my $from = $event->{event}->{to}[0];
my $nick = $event->{event}->nick;
my $user = $event->{event}->user;
my $host = $event->{event}->host;
my $text = $event->{event}->{args}[0];
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
$event->{interpreted} = $self->{pbot}->{interpreter}->process_line($from, $nick, $user, $host, $text);
return 0;
}
sub on_msg {
my ($self, $event_type, $event) = @_;
my ($nick, $host) = ($event->{event}->nick, $event->{event}->host);
my $text = $event->{event}->{args}[0];
my $bot_trigger = $self->{pbot}->{registry}->get_value('general', 'trigger');
my $bot_nick = $self->{pbot}->{registry}->get_value('irc', 'botnick');
$text =~ s/^$bot_trigger?\s*(.*)/$bot_nick $1/;
$event->{event}->{to}[0] = $nick;
$event->{event}->{args}[0] = $text;
$self->on_public($event_type, $event);
return 0;
}
sub on_notice {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host);
my $text = $event->{event}->{args}[0];
$self->{pbot}->{logger}->log("Received NOTICE from $nick!$user\@$host to $event->{event}->{to}[0] '$text'\n");
return 0 if not length $host;
if($nick eq 'NickServ') {
if($text =~ m/This nickname is registered/) {
$self->{pbot}->{logger}->log("Identifying with NickServ . . .\n");
$event->{conn}->privmsg("nickserv", "identify " . $self->{pbot}->{registry}->get_value('irc', 'identify_password'));
} elsif($text =~ m/You are now identified/) {
$event->{conn}->nick($self->{pbot}->{registry}->get_value('irc', 'botnick'));
} elsif($text =~ m/has been ghosted/) {
$event->{conn}->nick($self->{pbot}->{registry}->get_value('irc', 'botnick'));
}
} else {
if ($event->{event}->{to}[0] eq $self->{pbot}->{registry}->get_value('irc', 'botnick')) {
$event->{event}->{to}[0] = $nick;
}
$self->on_public($event_type, $event);
}
return 0;
}
sub on_action {
my ($self, $event_type, $event) = @_;
$event->{event}->{args}[0] = "/me " . $event->{event}->{args}[0];
$self->on_public($event_type, $event);
return 0;
}
sub on_mode {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host);
my $mode_string = $event->{event}->{args}[0];
my $channel = $event->{event}->{to}[0];
$channel = lc $channel;
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
my ($mode, $modifier);
my $i = 0;
my $target;
while($mode_string =~ m/(.)/g) {
my $char = $1;
if($char eq '-' or $char eq '+') {
$modifier = $char;
next;
}
$mode = $modifier . $char;
$target = $event->{event}->{args}[++$i];
$self->{pbot}->{logger}->log("Got mode: source: $nick!$user\@$host, mode: $mode, target: " . (defined $target ? $target : "(undef)") . ", channel: $channel\n");
if($mode eq "-b" or $mode eq "+b" or $mode eq "-q" or $mode eq "+q") {
$self->{pbot}->{bantracker}->track_mode("$nick!$user\@$host", $mode, $target, $channel);
}
if(defined $target && $target eq $event->{conn}->nick) { # bot targeted
if($mode eq "+o") {
$self->{pbot}->{logger}->log("$nick opped me in $channel\n");
my $timeout = $self->{pbot}->{registry}->get_value($channel, 'deop_timeout') // $self->{pbot}->{registry}->get_value('general', 'deop_timeout');
$self->{pbot}->{chanops}->{is_opped}->{$channel}{timeout} = gettimeofday + $timeout;
delete $self->{pbot}->{chanops}->{op_requested}->{$channel};
$self->{pbot}->{chanops}->perform_op_commands($channel);
}
elsif($mode eq "-o") {
$self->{pbot}->{logger}->log("$nick removed my ops in $channel\n");
delete $self->{pbot}->{chanops}->{is_opped}->{$channel};
}
elsif($mode eq "+b") {
$self->{pbot}->{logger}->log("Got banned in $channel, attempting unban.");
$event->{conn}->privmsg("chanserv", "unban $channel");
}
}
else { # bot not targeted
if($mode eq "+b") {
if($nick eq "ChanServ" or $target =~ m/##fix_your_connection$/i) {
if ($self->{pbot}->{chanops}->can_gain_ops($channel)) {
$self->{pbot}->{chanops}->{unban_timeout}->hash->{$channel}->{$target}{timeout} = gettimeofday + $self->{pbot}->{registry}->get_value('bantracker', 'chanserv_ban_timeout');
$self->{pbot}->{chanops}->{unban_timeout}->save;
}
} elsif ($target =~ m/^\*!\*@/ or $target =~ m/^\*!.*\@gateway\/web/i) {
my $timeout = 60 * 60 * 24 * 7;
if ($target =~ m/\// and $target !~ m/\@gateway/) {
$timeout = 0; # permanent bans for cloaks that aren't gateway
}
if ($timeout && $self->{pbot}->{chanops}->can_gain_ops($channel)) {
if (not exists $self->{pbot}->{chanops}->{unban_timeout}->hash->{lc $channel}->{lc $target}) {
$self->{pbot}->{logger}->log("Temp ban for $target in $channel.\n");
$self->{pbot}->{chanops}->{unban_timeout}->hash->{$channel}->{$target}{timeout} = gettimeofday + $timeout;
$self->{pbot}->{chanops}->{unban_timeout}->save;
}
}
}
}
elsif($mode eq "+q") {
if($nick ne $event->{conn}->nick) {
if ($self->{pbot}->{chanops}->can_gain_ops($channel)) {
$self->{pbot}->{chanops}->{unmute_timeout}->hash->{$channel}->{$target}{timeout} = gettimeofday + $self->{pbot}->{registry}->get_value('bantracker', 'mute_timeout');
$self->{pbot}->{chanops}->{unmute_timeout}->save;
}
}
}
}
}
return 0;
}
sub on_join {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to);
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
$channel = lc $channel;
my $message_account = $self->{pbot}->{messagehistory}->get_message_account($nick, $user, $host);
$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $channel, "JOIN", $self->{pbot}->{messagehistory}->{MSG_JOIN});
$self->{pbot}->{messagehistory}->{database}->devalidate_channel($message_account, $channel);
my $msg = 'JOIN';
if (exists $self->{pbot}->{capabilities}->{'extended-join'}) {
$msg .= " $event->{event}->{args}[0] :$event->{event}->{args}[1]";
$self->{pbot}->{messagehistory}->{database}->update_gecos($message_account, $event->{event}->{args}[1], scalar gettimeofday);
if ($event->{event}->{args}[0] ne '*') {
$self->{pbot}->{messagehistory}->{database}->link_aliases($message_account, undef, $event->{event}->{args}[0]);
$self->{pbot}->{antiflood}->check_nickserv_accounts($nick, $event->{event}->{args}[0]);
} else {
$self->{pbot}->{messagehistory}->{database}->set_current_nickserv_account($message_account, '');
}
$self->{pbot}->{antiflood}->check_bans($message_account, $event->{event}->from, $channel);
}
$self->{pbot}->{antiflood}->check_flood($channel, $nick, $user, $host, $msg,
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_threshold'),
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_time_threshold'),
$self->{pbot}->{messagehistory}->{MSG_JOIN});
return 0;
}
sub on_invite {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $target, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to, $event->{event}->{args}[0]);
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
$channel = lc $channel;
$self->{pbot}->{logger}->log("$nick!$user\@$host invited $target to $channel!\n");
if ($target eq $self->{pbot}->{registry}->get_value('irc', 'botnick')) {
if ($self->{pbot}->{channels}->is_active($channel)) {
$self->{pbot}->{interpreter}->add_botcmd_to_command_queue($channel, "join $channel", 0);
}
}
return 0;
}
sub on_kick {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $target, $channel, $reason) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to, $event->{event}->{args}[0], $event->{event}->{args}[1]);
$channel = lc $channel;
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
$self->{pbot}->{logger}->log("$nick!$user\@$host kicked $target from $channel ($reason)\n");
my ($message_account) = $self->{pbot}->{messagehistory}->{database}->find_message_account_by_nick($target);
my $hostmask;
if(defined $message_account) {
$hostmask = $self->{pbot}->{messagehistory}->{database}->find_most_recent_hostmask($message_account);
my ($target_nick, $target_user, $target_host) = $hostmask =~ m/^([^!]+)!([^@]+)@(.*)/;
my $text = "KICKED by $nick!$user\@$host ($reason)";
$self->{pbot}->{messagehistory}->add_message($message_account, $hostmask, $channel, $text, $self->{pbot}->{messagehistory}->{MSG_DEPARTURE});
$self->{pbot}->{antiflood}->check_flood($channel, $target_nick, $target_user, $target_host, $text,
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_threshold'),
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_time_threshold'),
$self->{pbot}->{messagehistory}->{MSG_DEPARTURE});
}
$message_account = $self->{pbot}->{messagehistory}->{database}->get_message_account_id("$nick!$user\@$host");
if(defined $message_account) {
my $text = "KICKED " . (defined $hostmask ? $hostmask : $target) . " from $channel ($reason)";
$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $channel, $text, $self->{pbot}->{messagehistory}->{MSG_CHAT});
}
return 0;
}
sub on_departure {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $channel, $args) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->to, $event->{event}->args);
$channel = lc $channel;
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
my $text = uc $event->{event}->type;
$text .= " $args";
my $message_account = $self->{pbot}->{messagehistory}->get_message_account($nick, $user, $host);
if($text =~ m/^QUIT/) {
# QUIT messages must be dispatched to each channel the user is on
my $channels = $self->{pbot}->{nicklist}->get_channels($nick);
foreach my $chan (@$channels) {
next if $chan !~ m/^#/;
$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $chan, $text, $self->{pbot}->{messagehistory}->{MSG_DEPARTURE});
}
} else {
$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $channel, $text, $self->{pbot}->{messagehistory}->{MSG_DEPARTURE});
}
$self->{pbot}->{antiflood}->check_flood($channel, $nick, $user, $host, $text,
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_threshold'),
$self->{pbot}->{registry}->get_value('antiflood', 'join_flood_time_threshold'),
$self->{pbot}->{messagehistory}->{MSG_DEPARTURE});
my $admin = $self->{pbot}->{admins}->find_admin($channel, "$nick!$user\@$host");
if(defined $admin and $admin->{loggedin} and not $admin->{stayloggedin}) {
$self->{pbot}->{logger}->log("Whoops, $nick left while still logged in.\n");
$self->{pbot}->{logger}->log("Logged out $nick.\n");
delete $admin->{loggedin};
}
return 0;
}
sub on_map {
my ($self, $event_type, $event) = @_;
# remove and discard first and last elements
shift @{ $event->{event}->{args} };
pop @{ $event->{event}->{args} };
foreach my $arg (@{ $event->{event}->{args} }) {
my ($key, $value) = split /=/, $arg;
$self->{pbot}->{ircd}->{$key} = $value;
$self->{pbot}->{logger}->log(" $key\n") if not defined $value;
$self->{pbot}->{logger}->log(" $key=$value\n") if defined $value;
}
}
sub on_cap {
my ($self, $event_type, $event) = @_;
if ($event->{event}->{args}->[0] eq 'ACK') {
$self->{pbot}->{logger}->log("Client capabilities granted: " . $event->{event}->{args}->[1] . "\n");
my @caps = split /\s+/, $event->{event}->{args}->[1];
foreach my $cap (@caps) {
$self->{pbot}->{capabilities}->{$cap} = 1;
}
} else {
$self->{pbot}->{logger}->log(Dumper $event->{event});
}
return 0;
}
sub on_nickchange {
my ($self, $event_type, $event) = @_;
my ($nick, $user, $host, $newnick) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);
($nick, $user, $host) = $self->normalize_hostmask($nick, $user, $host);
$self->{pbot}->{logger}->log("[NICKCHANGE] $nick!$user\@$host changed nick to $newnick\n");
if ($newnick eq $self->{pbot}->{registry}->get_value('irc', 'botnick') and not $self->{pbot}->{joined_channels}) {
my $chans;
foreach my $chan (keys %{ $self->{pbot}->{channels}->{channels}->hash }) {
if($self->{pbot}->{channels}->{channels}->hash->{$chan}{enabled}) {
$chans .= "$chan,";
}
}
$self->{pbot}->{logger}->log("Joining channels: $chans\n");
$self->{pbot}->{chanops}->join_channel($chans);
$self->{pbot}->{joined_channels} = 1;
return 0;
}
my $message_account = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
$self->{pbot}->{messagehistory}->{database}->devalidate_all_channels($message_account, $self->{pbot}->{antiflood}->{NEEDS_CHECKBAN});
my $channels = $self->{pbot}->{nicklist}->get_channels($nick);
foreach my $channel (@$channels) {
next if $channel !~ m/^#/;
$self->{pbot}->{messagehistory}->add_message($message_account, "$nick!$user\@$host", $channel, "NICKCHANGE $newnick", $self->{pbot}->{messagehistory}->{MSG_NICKCHANGE});
}
$self->{pbot}->{messagehistory}->{database}->update_hostmask_data("$nick!$user\@$host", { last_seen => scalar gettimeofday });
my $newnick_account = $self->{pbot}->{messagehistory}->{database}->get_message_account($newnick, $user, $host, $nick);
$self->{pbot}->{messagehistory}->{database}->devalidate_all_channels($newnick_account, $self->{pbot}->{antiflood}->{NEEDS_CHECKBAN});
$self->{pbot}->{messagehistory}->{database}->update_hostmask_data("$newnick!$user\@$host", { last_seen => scalar gettimeofday });
$self->{pbot}->{antiflood}->check_flood("$nick!$user\@$host", $nick, $user, $host, "NICKCHANGE $newnick",
$self->{pbot}->{registry}->get_value('antiflood', 'nick_flood_threshold'),
$self->{pbot}->{registry}->get_value('antiflood', 'nick_flood_time_threshold'),
$self->{pbot}->{messagehistory}->{MSG_NICKCHANGE});
return 0;
}
sub on_nicknameinuse {
my ($self, $event_type, $event) = @_;
my ($unused, $nick, $msg) = $event->{event}->args;
my $from = $event->{event}->from;
$self->{pbot}->{logger}->log("Received nicknameinuse for nick $nick from $from: $msg\n");
$event->{conn}->privmsg("nickserv", "ghost $nick " . $self->{pbot}->{registry}->get_value('irc', 'identify_password'));
return 0;
}
sub normalize_hostmask {
my ($self, $nick, $user, $host) = @_;
if ($host =~ m{^(gateway|nat)/(.*)/x-[^/]+$}) {
$host = "$1/$2/x-$user";
}
$host =~ s{/session$}{/x-$user};
return ($nick, $user, $host);
}
my %who_queue;
my %who_cache;
my $last_who_id;
my $who_pending = 0;
sub on_whospcrpl {
my ($self, $event_type, $event) = @_;
my ($ignored, $id, $user, $host, $nick, $nickserv, $gecos) = @{$event->{event}->{args}};
($nick, $user, $host) = $self->{pbot}->{irchandlers}->normalize_hostmask($nick, $user, $host);
$last_who_id = $id;
my $hostmask = "$nick!$user\@$host";
my $channel = $who_cache{$id};
delete $who_queue{$id};
return 0 if not defined $channel;
$self->{pbot}->{logger}->log("WHO id: $id, hostmask: $hostmask, $nickserv, $gecos.\n");
my $account_id = $self->{pbot}->{messagehistory}->{database}->get_message_account($nick, $user, $host);
$self->{pbot}->{messagehistory}->{database}->update_hostmask_data($hostmask, { last_seen => scalar gettimeofday });
if ($nickserv ne '0') {
$self->{pbot}->{messagehistory}->{database}->link_aliases($account_id, undef, $nickserv);
$self->{pbot}->{antiflood}->check_nickserv_accounts($nick, $nickserv);
}
$self->{pbot}->{messagehistory}->{database}->link_aliases($account_id, $hostmask, undef);
$self->{pbot}->{messagehistory}->{database}->devalidate_channel($account_id, $channel);
$self->{pbot}->{antiflood}->check_bans($account_id, $hostmask, $channel);
return 0;
}
sub on_endofwho {
my ($self, $event_type, $event) = @_;
$self->{pbot}->{logger}->log("WHO session $last_who_id ($who_cache{$last_who_id}) completed.\n");
delete $who_cache{$last_who_id};
$who_pending = 0;
return 0;
}
sub send_who {
my ($self, $channel) = @_;
$self->{pbot}->{logger}->log("pending WHO to $channel\n");
for (my $id = 1; $id < 99; $id++) {
if (not exists $who_cache{$id}) {
$who_cache{$id} = $channel;
$who_queue{$id} = $channel;
$last_who_id = $id;
last;
}
}
}
sub check_pending_whos {
my $self = shift;
return if $who_pending;
foreach my $id (keys %who_queue) {
$self->{pbot}->{logger}->log("sending WHO to $who_queue{$id} [$id]\n");
$self->{pbot}->{conn}->sl("WHO $who_queue{$id} %tuhnar,$id");
$who_pending = 1;
last;
}
}
1;