view release on metacpan or  search on metacpan

lib/AnyEvent/Radius/Client.pm  view on Meta::CPAN

package AnyEvent::Radius::Client;
# AnyEvent-based radius client
use strict;
use warnings;
use AnyEvent;
use AnyEvent::Handle::UDP;

use base qw(Class::Accessor::Fast);
__PACKAGE__->mk_accessors(qw(
                handler packer send_cache
                queue_cv write_cv read_cv
                sent_cnt reply_cnt queue_cnt
                last_request_id
            ));

use Data::Radius v1.2.8;
use Data::Radius::Constants qw(%RADIUS_PACKET_TYPES);
use Data::Radius::Dictionary ();
use Data::Radius::Packet ();

use constant {
    READ_TIMEOUT_SEC => 5,
    WRITE_TIMEOUT_SEC => 5,
    RADIUS_PORT => 1812,
    MAX_REQUEST_ID => 0xFF,
};

# deprecated?
use constant MAX_QUEUE => MAX_REQUEST_ID() + 1;

# new 'NAS'
# args:
#   ip
#   port
#   secret
#   dictionary
#   read_timeout
#   write_timeout
#   bind_ip
#   initial_last_request_id - random by default
#- callbacks:
#    on_read
#    on_read_raw
#    on_read_timeout
#    on_write_timeout
#    on_error
sub new {
    my ($class, %h) = @_;

    my $obj = bless {}, $class;

    # either pre-created packer object, or need radius secret to create new one
    # dictionary is optional
    if ( defined $h{packer} ) {
        $obj->packer( $h{packer} );
    } elsif ( defined $h{secret} ) {
        $obj->packer( Data::Radius::Packet->new(dict => $h{dictionary}, secret => $h{secret}) );
    } else {
        die "No radius secret";
    }

    my %udp_handle_args = (
        rtimeout => $h{read_timeout} // READ_TIMEOUT_SEC,
        wtimeout => $h{write_timeout} // WRITE_TIMEOUT_SEC,
    );

    die "No IP argument" if ! exists $h{ip};
    $udp_handle_args{connect} = [ $h{ip}, $h{port} // RADIUS_PORT ];
    $udp_handle_args{bind} = [$h{bind_ip}, 0] if exists $h{bind_ip};

    $udp_handle_args{on_recv} = sub {
        my ($data, $handle, $from) = @_;
        $obj->read_cv->end;
        $obj->reply_cnt($obj->reply_cnt + 1);

        if ($h{on_read_raw}) {
            # dump raw data
            $h{on_read_raw}->($obj, $data, $from);
        }

        # using authenticator from request to verify reply
        my $request_id = $obj->packer()->request_id($data);
        # FIXME how to react on unknown request_id ?
        my $send_info = delete $obj->send_cache()->{ $request_id };
        if (! $send_info ) {
            # got unknown reply (with wrong request id?)
            if ($h{on_error}) {
                $h{on_error}->($obj, 'Unknown reply');
            }
            else {
                warn "Error: unknown reply";
            }
        }
        else {
            my $on_read = $h{on_read};
            my $req_callback = $send_info->{callback};
            if ( $on_read || $req_callback ) {
                # how to decode $from
                # my($port, $host) = AnyEvent::Socket::unpack_sockaddr($from);
                # my $ip = format_ipv4($host);