class IPAddress:
def __init__(self, input_address=None):
if input_address:
self.ip = IPNetwork(input_address).ip
self.broadcast = IPNetwork(input_address).broadcast
self.network_address = IPNetwork(input_address).network
self.subnet_mask = IPNetwork(input_address).netmask
self.first_address = self.network_address + 1
self.num_hosts = self.__get_num_hosts(IPNetwork(input_address).size)
self.binary_subnet_mask = self.subnet_mask.bits()
self.network_class = self.__get_network_class(input_address) # type: str
self.default_subnet = self.__get_default_subnet(input_address) # type: int
self.__netmask_sanity_check()
def __netmask_sanity_check(self):
"""
Sets proper values to fields when subnet mask exceeds 31
:return:
"""
if self.broadcast:
self.last_address = self.broadcast - 1
else:
self.broadcast = self.ip
self.last_address = ""
self.first_address = ""
@staticmethod
def __get_num_hosts(network_size):
num_hosts = 0
if network_size >= 2:
num_hosts = network_size - 2
return num_hosts
@staticmethod
def __get_network_class(input_address):
threshold = input_address.split('.')[0]
if int(threshold) <= 127:
return 'A'
elif 128 <= int(threshold) < 192:
return 'B'
elif int(threshold) >= 192:
return 'C'
@staticmethod
def __get_default_subnet(input_address):
threshold = input_address.split('.')[0]
if int(threshold) <= 127:
return 8
elif 128 <= int(threshold) < 192:
return 16
elif int(threshold) >= 192:
return 24
