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lib/AWS/Networks.pm  view on Meta::CPAN

package AWS::Networks;
  use Moose;
  use JSON;
  use HTTP::Tiny;
  use DateTime;

  our $VERSION = '0.01';

  has url => (
    is => 'ro', 
    isa => 'Str|Undef', 
    default => 'https://ip-ranges.amazonaws.com/ip-ranges.json'
  );

  has netinfo => (
    is => 'ro',
    isa => 'HashRef',
    default => sub {
      my $self = shift;
      die "Can't get some properties from derived results" if (not $self->url);
      my $response = HTTP::Tiny->new->get($self->url);
      die "Error downloading URL" unless ($response->{ success });
      return decode_json($response->{ content });
    },
    lazy => 1,
  );

  has sync_token => (
    is => 'ro',
    isa => 'DateTime',
    default => sub {
      return DateTime->from_epoch( epoch => shift->netinfo->{ syncToken } );
    },
    lazy => 1,
  );

  has networks => (
    is => 'ro',
    isa => 'ArrayRef',
    default => sub {
      return shift->netinfo->{ prefixes };
    },
    lazy => 1,
  );

  has regions => (
    is => 'ro',
    isa => 'ArrayRef',
    default => sub {
      my ($self) = @_;
      my $regions = {};
      map { $regions->{ $_->{ region } } = 1 } @{ $self->networks };
      return [ keys %$regions ];
    },
    lazy => 1,
  );

  sub by_region {
    my ($self, $region) = @_;
    return AWS::Networks->new(
      url => undef,
      sync_token => $self->sync_token,
      networks => [ grep { $_->{ region } eq $region } @{ $self->networks }  ]