#
# Copyright (c) 2006-2012 Hal Brodigan (postmodern.mod3 at gmail.com)
#
# This file is part of Ronin Support.
#
# Ronin Support 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 3 of the License, or
# (at your option) any later version.
#
# Ronin Support 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 Ronin Support.  If not, see <http://www.gnu.org/licenses/>.
#

require 'ronin/extensions/ip_addr'

require 'uri/http'
require 'net/http'

module Ronin
  #
  # Network helper methods.
  #
  module Network
    # The URL used for determining the external IP Address.
    IP_URL = URI.parse('http://checkip.dyndns.org/')

    #
    # Determines the current external IP Address.
    #
    # @return [String]
    #   The external IP Address according to {http://checkip.dyndns.org}.
    #
    # @api public
    #
    def Network.ip
      IPAddr.extract(Net::HTTP.get(IP_URL)).first
    end
  end
end