def cidr_handler(self, message):
net, mask = message.split('/')[0], message.split('/')[1]
if int(mask) not in range(0, 32):
raise ValueError('маска не входит допустимый диапазон')
response = self.cache.get(message)
if response is None:
cidr = Cidr()
binary_subnet = cidr.get_subnet(cidr.net_to_bin(net), cidr.mask_to_bin(int(mask)))
subnet = cidr.binary_to_ip(binary_subnet)
binary_broadcast = cidr.get_broadcast(cidr.net_to_bin(net), cidr.mask_to_bin(int(mask)))
broadcast = cidr.binary_to_ip(binary_broadcast)
host_min = cidr.binary_to_ip(cidr.get_host_min(binary_subnet))
host_max = cidr.binary_to_ip(cidr.get_host_max(binary_broadcast))
host_count = cidr.get_host_count(int(mask))
response = "network - {0} \r\n " \
"broadcast - {1} \r\n " \
"hostmin - {2} \r\n " \
"hostmax - {3} \r\n " \
"hosts - {4} \r\n".format(subnet,
broadcast,
host_min,
host_max,
host_count)
self.cache.set(message, response)
return response
def test_get_network_by_range(self):
cidr = Cidr()
hostmin = cidr.get_host_min(cidr.get_subnet(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22)))
hostmax = cidr.get_host_max(cidr.get_broadcast(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22)))
network = cidr.get_network_by_range(hostmin, hostmax)
result = int(''.join(map(str, network)))
self.assertEqual(result, 11000000101010000001000000000000)
def test_get_host_max(self):
cidr = Cidr()
hostmax = cidr.get_host_max(cidr.get_broadcast(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22)))
ip = cidr.binary_to_ip(hostmax)
self.assertEqual(ip, '192.168.19.254')
def test_get_mask_by_range(self):
cidr = Cidr()
hostmin = cidr.get_host_min(cidr.get_subnet(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22)))
hostmax = cidr.get_host_max(cidr.get_broadcast(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22)))
mask = cidr.get_mask_by_range(hostmin, hostmax)
self.assertEqual(mask, 22)
def test_get_broadcast(self):
cidr = Cidr()
broadcast = cidr.get_broadcast(cidr.net_to_bin('192.168.16.100'), cidr.mask_to_bin(22))
result = int(''.join(map(str, broadcast)))
self.assertEqual(result, 11000000101010000001001111111111)