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pbot/PBot/Commands.pm
2017-12-11 12:44:19 -08:00

140 lines
3.4 KiB
Perl

# File: Commands.pm
# Author: pragma_
#
# Purpose: Derives from Registerable class to provide functionality to
# register subroutines, along with a command name and admin level.
# Registered items will then be executed if their command name matches
# a name provided via input.
# 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::Commands;
use warnings;
use strict;
use base 'PBot::Registerable';
use Carp ();
use Text::ParseWords qw(shellwords);
sub new {
if(ref($_[1]) eq 'HASH') {
Carp::croak("Options to Commands should be key/value pairs, not hash reference");
}
my ($class, %conf) = @_;
my $self = bless {}, $class;
$self->initialize(%conf);
return $self;
}
sub initialize {
my ($self, %conf) = @_;
$self->SUPER::initialize(%conf);
my $pbot = delete $conf{pbot};
if(not defined $pbot) {
Carp::croak("Missing pbot reference to PBot::Commands");
}
$self->{pbot} = $pbot;
$self->{name} = undef;
$self->{level} = undef;
}
sub register {
my ($self, $subref, $name, $level) = @_;
if((not defined $subref) || (not defined $name) || (not defined $level)) {
Carp::croak("Missing parameters to Commands::register");
}
$name = lc $name;
my $ref = $self->SUPER::register($subref);
$ref->{name} = $name;
$ref->{level} = $level;
return $ref;
}
sub unregister {
my ($self, $name) = @_;
if(not defined $name) {
Carp::croak("Missing name parameter to Commands::unregister");
}
$name = lc $name;
@{ $self->{handlers} } = grep { $_->{name} ne $name } @{ $self->{handlers} };
}
sub exists {
my $self = shift;
my ($keyword) = @_;
$keyword = lc $keyword;
foreach my $ref (@{ $self->{handlers} }) {
return 1 if $ref->{name} eq $keyword;
}
return 0;
}
sub interpreter {
my ($self, $stuff) = @_;
my $result;
if ($self->{pbot}->{registry}->get_value('general', 'debugcontext')) {
use Data::Dumper;
$Data::Dumper::Sortkeys = 1;
$self->{pbot}->{logger}->log("Commands::interpreter\n");
$self->{pbot}->{logger}->log(Dumper $stuff);
}
my $admin = $self->{pbot}->{admins}->loggedin($stuff->{from}, "$stuff->{nick}!$stuff->{user}\@$stuff->{host}");
my $level = defined $admin ? $admin->{level} : 0;
my $keyword = lc $stuff->{keyword};
if (exists $stuff->{'effective-level'}) {
$self->{pbot}->{logger}->log("override level to $stuff->{'effective-level'}\n");
$level = $stuff->{'effective-level'};
}
foreach my $ref (@{ $self->{handlers} }) {
if ($ref->{name} eq $keyword) {
if ($level >= $ref->{level}) {
my $result = &{ $ref->{subref} }($stuff->{from}, $stuff->{nick}, $stuff->{user}, $stuff->{host}, $stuff->{arguments}, $stuff);
if ($stuff->{referenced}) {
return undef if $result =~ m/(?:usage:|no results)/i;
}
return $result;
} else {
return undef if $stuff->{referenced};
if ($level == 0) {
return "/msg $stuff->{nick} You must login to use this command.";
} else {
return "/msg $stuff->{nick} You are not authorized to use this command.";
}
}
}
}
return undef;
}
sub parse_arguments {
my ($self, $arguments) = @_;
my $args = quotemeta $arguments;
$args =~ s/\\ / /g;
return shellwords($args);
}
1;