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package MasterServer::UDP::BeaconChecker;
use strict;
use warnings;
use AnyEvent::Handle::UDP;
use Exporter 'import';
our @EXPORT = qw| query_udp_server |;
################################################################################
## Get the server status from any server over UDP and store the received
## information in the database. $secure determines the type of query:
## secure/pending or information.
## options: ip, port, need_validate, direct_uplink
################################################################################
sub query_udp_server {
my ($self, %o) = @_;
my $buffer = "";
# if a secure/validate challenge is still required, generate secure string
my $secure = $self->secure_string if $o{need_validate};
# connect with UDP server
my $udp_client; $udp_client = AnyEvent::Handle::UDP->new(
connect => [$o{ip}, $o{port}],
timeout => $self->{timeout_time},
on_timeout => sub {$udp_client->destroy;},
on_error => sub {$udp_client->destroy;},
on_recv => sub {
# add received data to buffer
$buffer .= $_[0];
# buffer completed receiving all relevant information?
if ($buffer =~ m/\\final\\/) {
# try to process datagram
$self->process_datagram(
ip => $o{ip},
port => $o{port},
rxbuf => $buffer,
secure => $secure,
direct => $o{direct_uplink},
);
}
# else partial information received. wait for more.
# else { }
},
);
# determine the requests and send message
$udp_client->push_send("\\secure\\$secure") if $o{need_validate};
$udp_client->push_send("\\status\\");
}
1;
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