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|
"""
The tool to check the availability or syntax of domain, IP or URL.
::
██████╗ ██╗ ██╗███████╗██╗ ██╗███╗ ██╗ ██████╗███████╗██████╗ ██╗ ███████╗
██╔══██╗╚██╗ ██╔╝██╔════╝██║ ██║████╗ ██║██╔════╝██╔════╝██╔══██╗██║ ██╔════╝
██████╔╝ ╚████╔╝ █████╗ ██║ ██║██╔██╗ ██║██║ █████╗ ██████╔╝██║ █████╗
██╔═══╝ ╚██╔╝ ██╔══╝ ██║ ██║██║╚██╗██║██║ ██╔══╝ ██╔══██╗██║ ██╔══╝
██║ ██║ ██║ ╚██████╔╝██║ ╚████║╚██████╗███████╗██████╔╝███████╗███████╗
╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═══╝ ╚═════╝╚══════╝╚═════╝ ╚══════╝╚══════╝
Provides the IPv4 syntax checker.
Author:
Nissar Chababy, @funilrys, contactTATAfunilrysTODTODcom
Special thanks:
https://pyfunceble.github.io/#/special-thanks
Contributors:
https://pyfunceble.github.io/#/contributors
Project link:
https://github.com/funilrys/PyFunceble
Project documentation:
https://docs.pyfunceble.com
Project homepage:
https://pyfunceble.github.io/
License:
::
Copyright 2017, 2018, 2019, 2020, 2022, 2023, 2024, 2025 Nissar Chababy
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
import ipaddress
from PyFunceble.checker.base import CheckerBase
class IPv4SyntaxChecker(CheckerBase):
"""
Provides an interface to check the syntax of an IPv4.
:param str subject:
Optional, The subject to work with.
"""
@staticmethod
def _get_regex_reserved_ip() -> str:
"""
Provides the regex to use to match all known reserved IPv4.
"""
# pylint: disable=line-too-long
reserved = [
# Match 0.0.0.0–0.255.255.255
r"(0\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 10.0.0.0–10.255.255.255
r"(10\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 100.64.0.0–100.127.255.255
r"(100\.(0?6[4-9]|0?[7-9][0-9]|1[0-1][0-9]|12[0-7])\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 127.0.0.0–127.255.255.255
r"(127\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 169.254.0.0–169.254.255.255
r"(169\.254\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 172.16.0.0–172.31.255.255
r"(172\.(0?1[6-9]|0?2[0-9]|0?3[0-1])\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.0.0.0–192.0.0.255
r"(192\.0\.0\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.0.2.0–192.0.2.255
r"(192\.0\.2\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.31.196.0–192.31.196.255
r"(192\.31\.196\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.52.193.0–192.52.193.255
r"(192\.52\.193\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.88.99.0–192.88.99.255
r"(192\.88\.99\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.168.0.0–192.168.255.255
r"(192\.168\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 192.175.48.0-192.175.48.255
r"(192\.175\.48\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))",
# Match 198.18.0.0–198.19.255.255
r"(198\.(0?1[8-9])\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 198.51.100.0–198.51.100.255
r"(198\.51\.100\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 203.0.113.0–203.0.113.255
r"(203\.0\.113\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 224.0.0.0–239.255.255.255
r"((22[4-9]|23[0-9])\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 240.0.0.0–255.255.255.254
r"((24[0-9]|25[0-5])\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[0-9]{1,}\/[0-9]{1,}))",
# Match 255.255.255.255
r"(255\.255\.255\.255)",
]
# pylint: enable=enable-too-long
return "({0})".format("|".join(reserved))
@CheckerBase.ensure_subject_is_given
def is_valid(self) -> bool:
"""
Validate the given subject.
"""
for method in (
ipaddress.ip_address,
ipaddress.ip_interface,
lambda x: ipaddress.ip_network(x, strict=False),
):
try:
return method(self.idna_subject).version == 4
except ValueError:
continue
return False
@CheckerBase.ensure_subject_is_given
def is_valid_range(self) -> bool:
"""
Checks if the given subject is an IPv4 range
"""
if self.is_valid() and "/" in self.idna_subject:
return 0 <= int(self.idna_subject[self.idna_subject.rfind("/") + 1 :]) <= 32
return False
@CheckerBase.ensure_subject_is_given
def is_reserved(self) -> bool:
"""
Checks if the given subject is a reserved IPv4.
"""
if self.is_valid():
try:
address = ipaddress.IPv4Address(self.idna_subject)
return (
address.is_multicast
or address.is_private
or address.is_unspecified
or address.is_reserved
or address.is_loopback
or address.is_link_local
or not address.is_global
or self.regex_helper.set_regex(self._get_regex_reserved_ip()).match(
self.idna_subject, return_match=False
)
)
except ValueError:
pass
return False
|
