+# Copyright (c) 2014, Ralf Jung <post@ralfj.de>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# 1. Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of the FreeBSD Project.
+
import re, datetime
#from typing import *
REGEX_ipv6 = r'^[a-fA-F0-9]{1,4}(:[a-fA-F0-9]{1,4}){7}$'
def check_label(label: str) -> str:
+ label = str(label)
pattern = r'^{0}$'.format(REGEX_label)
if re.match(pattern, label):
return label
raise Exception(label+" is not a valid label")
def check_hostname(name: str) -> str:
+ name = str(name)
# check hostname for validity
pattern = r'^{0}(\.{0})*\.?$'.format(REGEX_label)
if re.match(pattern, name):
raise Exception(name+" is not a valid hostname")
def check_hex(data: str) -> str:
+ data = str(data)
if re.match('^[a-fA-F0-9]+$', data):
return data
raise Exception(data+" is not valid hex data")
def check_ipv4(address: str) -> str:
+ address = str(address)
if re.match(REGEX_ipv4, address):
return address
raise Exception(address+" is not a valid IPv4 address")
def check_ipv6(address: str) -> str:
+ address = str(address)
if re.match(REGEX_ipv6, address):
return address
raise Exception(address+" is not a valid IPv6 address")
class Zone:
- def __init__(self, name: str, serialfile: str, mail: str, NS: 'List[str]',
+ def __init__(self, name: str, serialfile: str, mail: str, NS: 'List[str]', TTLs: 'Dict[str, int]',
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._serialfile = serialfile
-
+ domains: 'Dict[str, Any]') -> None:
if not name.endswith('.'): raise Exception("Expected an absolute hostname")
self._name = check_hostname(name)
+ self._serialfile = serialfile
+
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))
+ if '' not in TTLs: raise Exception("Must give a default TTL with empty key")
+ self._TTLs = TTLs
self._refresh = secondary_refresh
self._retry = secondary_retry
self._expire = secondary_expire
- if other_TTL is None: raise Exception("Must give other_TTL")
- self._NX_TTL = NX_TTL
- self._A_TTL = self._AAAA_TTL = A_TTL
- self._other_TTL = other_TTL
-
self._domains = domains
+ def getTTL(self, recordType: str) -> str:
+ return self._TTLs.get(recordType, self._TTLs[''])
+
def RR(self, owner: str, recordType: str, data: str) -> str:
'''generate given RR, in textual representation'''
assert re.match(r'^[A-Z]+$', recordType), "got invalid record type"
- # figure out TTL
- attrname = "_"+recordType+"_TTL"
- TTL = None # type: int
- if hasattr(self, attrname):
- TTL = getattr(self, attrname)
- if TTL is None:
- TTL = self._other_TTL
- # be done
- return column_widths((self.abs_hostname(owner), time(TTL), recordType, data), (32, 8, 8))
+ return column_widths((self.abs_hostname(owner), time(self.getTTL(recordType)), recordType, data), (32, 8, 8))
def abs_hostname(self, name):
if name == '.' or name == '@':
try:
with open(self._serialfile) as f:
cur_serial = int(f.read())
- except FileNotFoundError:
+ except (OSError, IOError): # FileNotFoundError has been added in Python 3.3
pass
# increment serial
cur_serial += 1
' ; primns mail serial refresh retry expire NX_TTL').format(
NS=self.abs_hostname(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))
+ NX_TTL=time(self.getTTL('NX')))
)
# NS records
for name in self._NS:
projects / zonemaker.git / blobdiff