package Bugzilla::Quantum::Plugin::BlockIP;
use 5.10.1;
use Mojo::Base 'Mojolicious::Plugin';

use Bugzilla::Memcached;

use constant BLOCK_TIMEOUT => 60 * 60;

my $MEMCACHED = Bugzilla::Memcached->new()->{memcached};

sub register {
    my ( $self, $app, $conf ) = @_;

    $app->hook( before_routes => \&_before_routes );
    $app->helper( block_ip   => \&_block_ip );
    $app->helper( unblock_ip => \&_unblock_ip );
}

sub _block_ip {
    my ( $class, $ip ) = @_;
    $MEMCACHED->set( "block_ip:$ip" => 1, BLOCK_TIMEOUT ) if $MEMCACHED;
}

sub _unblock_ip {
    my ( $class, $ip ) = @_;
    $MEMCACHED->delete("block_ip:$ip") if $MEMCACHED;
}

sub _before_routes {
    my ($c) = @_;
    return if $c->stash->{'mojo.static'};

    my $ip = $c->tx->remote_address;
    if ( $MEMCACHED && $MEMCACHED->get("block_ip:$ip") ) {
        $c->block_ip($ip);
        $c->res->code(429);
        $c->res->message('Too Many Requests');
        $c->res->body('Too Many Requests');
        $c->finish;
    }
}

1;