# Copyright (c) 2008-2012 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: AssertClient.pm,v 1.3 2012/01/17 00:02:11 nagler Exp $
package Bivio::Biz::Action::AssertClient;
use strict;
use Bivio::Base 'Biz.Action';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.3 $ =~ /\d+/g);
Bivio::IO::Config->register(my $_CFG = {
    hosts => [qw(localhost.localdomain)],
    addresses => [],
});
my($_CACHE);

sub execute {
    my($proto, $req) = @_;
    $req->throw_die(
	'FORBIDDEN',
	{
	    message => 'not in addresses',
	    entity => $req->get('client_addr'),
	},
    ) unless $proto->is_valid_address($req->get('client_addr'));
    return 0;
}

sub execute_is_test {
    my($proto, $req) = @_;
    $req->assert_test;
    return shift->execute(@_);
}

sub handle_config {
    my(undef, $cfg) = @_;
#TODO: Use Type.IPAddress and Type.CIDRNotation
    $_CACHE = {
	map(($_ => 1),
	    map(/^\d+\.\d+\.\d+\.\d+$/ ? $_
	        : Bivio::Die->die($_, ': invalid address'),
		@{$cfg->{addresses} || []}),
	    map({
		my($a) = (gethostbyname($_))[4];
		$a ? join('.', unpack('C4', $a))
	            : Bivio::IO::Alert->warn($_, ": unable to map host: $!");
	    } @{$cfg->{hosts} || []}),
	),
    };
    $_CFG = $cfg;
    return;
}

sub is_valid_address {
    my(undef, $address) = @_;
    return $_CACHE->{$address} || 0;
}

1;