X-Git-Url: https://git.ralfj.de/zonemaker.git/blobdiff_plain/dc522c047192e9e5835cb4a8a4a583d130a11ebb..75353227531611c4eb6fdd12ee95a1e8eb1e96f5:/zonemaker/zone.py diff --git a/zonemaker/zone.py b/zonemaker/zone.py deleted file mode 100644 index c30cab1..0000000 --- a/zonemaker/zone.py +++ /dev/null @@ -1,116 +0,0 @@ -import re -from ipaddress import IPv4Address, IPv6Address -from typing import List, Dict, Any, Iterator - - -second = 1 -minute = 60*second -hour = 60*minute -day = 24*hour -week = 7*day - -def check_hostname(name: str) -> str: - # check hostname for validity - label = r'[a-zA-Z90-9]([a-zA-Z90-9-]{0,61}[a-zA-Z90-9])?' # must not start or end with hyphen - pattern = r'^{0}(\.{0})*\.?'.format(label) - if re.match(pattern, name): - return name - raise Exception(name+" is not a valid hostname") - -def abs_hostname(name: str, root: str = None) -> str: - if name.endswith('.'): - return name - if root is None: - raise Exception("Name {0} was expected to be absolute, but it is not".format(name)) - if not root.endswith('.'): - raise Exception("Root {0} was expected to be absolute, but it is not".format(name)) - return name+"."+root - -def time(time: int) -> str: - if time == 0: - return "0" - elif time % week == 0: - return str(time//week)+"w" - elif time % day == 0: - return str(time//day)+"d" - elif time % hour == 0: - return str(time//hour)+"h" - elif time % minute == 0: - return str(time//minute)+"m" - else: - return str(time) - -class Address: - # mypy does not know about the ipaddress types, so leave this class unannotated for now - def __init__(self, IPv4 = None, IPv6 = None) -> None: - self._IPv4 = None if IPv4 is None else IPv4Address(IPv4) - self._IPv6 = None if IPv6 is None else IPv6Address(IPv6) - - def IPv4(self): - return Address(IPv4 = self._IPv4) - - def IPv6(self): - return Address(IPv6 = self._IPv6) - -class Name: - def __init__(self, address: Address = None, MX: List = None, - TCP: Dict[int, Any] = None, UDP: Dict[int, Any] = None) -> None: - self._address = address - -class Service: - def __init__(self, SRV: str = None, TLSA: str=None) -> None: - self._SRV = None if SRV is None else check_hostname(SRV) - self._TLSA = TLSA - -class CName: - def __init__(self, name: str) -> None: - self._name = check_hostname(name) - -class Delegation(): - def __init__(self, NS: str, DS: str = None) -> None: - pass - -class RR(): - def __init__(self, owner: str, TTL: int, recordType: str, data: str) -> None: - assert owner.endswith('.') # users have to make this absolute first - self._owner = owner - self._TTL = TTL - self._recordType = recordType - self._data = data - - def __str__(self) -> str: - return "{0}\t{1}\t{2}\t{3}".format(self._owner, self._TTL, self._recordType, self._data) - -class Zone: - def __init__(self, name: str, mail: str, NS: List[str], - secondary_refresh: int, secondary_retry: int, secondary_expire: int, - NX_TTL: int = None, A_TTL: int = None, other_TTL: int = None, - domains: Dict[str, Any] = {}) -> None: - self._name = check_hostname(name) - if not mail.endswith('.'): raise Exception("Mail must be absolute, end with a dot") - atpos = mail.find('@') - if atpos < 0 or atpos > mail.find('.'): raise Exception("Mail must contain an @ before the first dot") - self._mail = check_hostname(mail.replace('@', '.', 1)) - self._NS = list(map(check_hostname, NS)) - - self._refresh = secondary_refresh - self._retry = secondary_retry - self._expire = secondary_expire - - assert other_TTL is not None - self._NX_TTL = other_TTL if NX_TTL is None else NX_TTL - self._A_TTL = other_TTL if A_TTL is None else A_TTL - self._other_TTL = other_TTL - - def generate_rrs(self) -> Iterator[RR]: - serial = -1 - yield (RR(abs_hostname(self._name), self._other_TTL, 'SOA', - '{NS} {mail} ({serial} {refresh} {retry} {expire} {NX_TTL})'.format( - NS=self._NS[0], mail=self._mail, serial=serial, - refresh=time(self._refresh), retry=time(self._retry), expire=time(self._expire), - NX_TTL=time(self._NX_TTL)) - )) - - def write(self, file:Any) -> None: - for rr in self.generate_rrs(): - print(rr)