PyNesca/modules/address_generation/IpGenerator.py

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from core.prototypes.AbstractAddressGenerator import AbstractAddressGenerator
from threading import RLock
import ipaddress
from types import GeneratorType
class IpGenerator(AbstractAddressGenerator):
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def set_parsed_fields(self, ips : 'ipv4_objects', ports : 'ports') -> None:
self.ips = ips
self.ports = ports
self.lock = RLock()
def get_next_port_number(self, previous_port):
return (self.ports.index(previous_port) + 1) % len(self.ports)
def get_next_address(self, previous_address : 'ipv4', previous_port :
'port') -> {'ipv4', 'port'}:
result = dict()
with self.lock:
portnum = 0
next_ip = None
if previous_address:
next_ip = previous_address
port = previous_port
portnum = self.get_next_port_number(port)
if (portnum == 0):
next_ip = None
try:
while not next_ip:
if isinstance(self.ips[0], ipaddress.IPv4Address):
next_ip = self.ips.pop(0)
else:
if not isinstance(self.ips[0], GeneratorType):
self.ips[0] = self.ips[0].hosts()
try:
next_ip = next(self.ips[0])
except StopIteration:
self.ips.pop(0)
except IndexError:
return None
result["ipv4"] = next_ip
result["port"] = self.ports[portnum]
return result
def get_all_addresses(self) -> {'ipv4_ranges', 'ports'}:
result = dict()
result['ipv4_ranges'] = self.ips
result['ports'] = ports
return result