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pbot/lib/PBot/Core/BlackList.pm
2021-07-23 16:41:32 -07:00

143 lines
4.0 KiB
Perl

# File: BlackList.pm
#
# Purpose: Manages list of hostmasks that are not allowed to join a channel.
# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT
package PBot::Core::BlackList;
use parent 'PBot::Core::Class';
use PBot::Imports;
sub initialize {
my ($self, %conf) = @_;
$self->{filename} = $conf{filename};
$self->{storage} = {};
$self->load;
}
sub add {
my ($self, $channel, $hostmask) = @_;
$self->{storage}->{lc $channel}->{lc $hostmask} = 1;
$self->save;
}
sub remove {
my ($self, $channel, $hostmask) = @_;
$channel = lc $channel;
$hostmask = lc $hostmask;
if (exists $self->{storage}->{$channel}) {
delete $self->{storage}->{$channel}->{$hostmask};
if (not keys %{$self->{storage}->{$channel}}) {
delete $self->{storage}->{$channel};
}
}
$self->save;
}
sub clear {
my ($self) = @_;
$self->{storage} = {};
}
sub load {
my ($self) = @_;
if (not $self->{filename}) {
$self->{pbot}->{logger}->log("No blacklist path specified -- skipping loading of blacklist");
return;
}
$self->{pbot}->{logger}->log("Loading blacklist from $self->{filename} ...\n");
open(FILE, "< $self->{filename}") or Carp::croak "Couldn't open $self->{filename}: $!\n";
my @contents = <FILE>;
close(FILE);
my $i = 0;
foreach my $line (@contents) {
chomp $line;
$i++;
my ($channel, $hostmask) = split(/\s+/, $line);
if (not defined $hostmask || not defined $channel) {
Carp::croak "Syntax error around line $i of $self->{filename}\n";
}
if (exists $self->{storage}->{$channel}->{$hostmask}) {
Carp::croak "Duplicate blacklist entry $hostmask $channel found in $self->{filename} around line $i\n";
}
$self->{storage}->{$channel}->{$hostmask} = 1;
}
$self->{pbot}->{logger}->log(" $i entries in blacklist\n");
}
sub save {
my ($self) = @_;
if (not $self->{filename}) {
$self->{pbot}->{logger}->log("No blacklist path specified -- skipping saving of blacklist\n");
return;
}
open(FILE, "> $self->{filename}") or die "Couldn't open $self->{filename}: $!\n";
foreach my $channel (keys %{$self->{storage}}) {
foreach my $hostmask (keys %{$self->{storage}->{$channel}}) {
print FILE "$channel $hostmask\n";
}
}
close FILE;
}
sub is_blacklisted {
my ($self, $hostmask, $channel, $nickserv, $gecos) = @_;
return 0 if not defined $channel;
my $result = eval {
foreach my $black_channel (keys %{$self->{storage}}) {
foreach my $black_hostmask (keys %{$self->{storage}->{$black_channel}}) {
next if $channel !~ /^$black_channel$/i;
my $flag = '';
if ($black_hostmask =~ s/^\$(.)://) {
$flag = $1;
}
if ($flag eq 'a' && defined $nickserv && $nickserv =~ /^$black_hostmask$/i) {
$self->{pbot}->{logger}->log("$hostmask nickserv $nickserv blacklisted in channel $channel (matches [\$a:$black_hostmask] host and [$black_channel] channel)\n");
return 1;
} elsif ($flag eq 'r' && defined $gecos && $gecos =~ /^$black_hostmask$/i) {
$self->{pbot}->{logger}->log("$hostmask GECOS $gecos blacklisted in channel $channel (matches [\$r:$black_hostmask] host and [$black_channel] channel)\n");
return 1;
} elsif ($flag eq '' && $hostmask =~ /^$black_hostmask$/i) {
$self->{pbot}->{logger}->log("$hostmask blacklisted in channel $channel (matches [$black_hostmask] host and [$black_channel] channel)\n");
return 1;
}
}
}
return 0;
};
if (my $exception = $@) {
$self->{pbot}->{logger}->log("Error in blacklist: $exception");
return 0;
}
return $result;
}
1;