50 lines
1.2 KiB
Python
Executable File
50 lines
1.2 KiB
Python
Executable File
#! /usr/bin/env python3
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import sys
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import json
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import re
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import ipaddress
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from datetime import datetime
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def str_to_domainlabel(s):
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label = re.sub("[^0-9a-zA-Z-]", "-", s)
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label = re.sub("-+", "-", label)
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label = re.sub("^-*", "", label)
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label = re.sub("-*$", "", label)
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if not re.match("^[a-zA-Z][a-zA-Z0-9-]{,61}[a-zA-Z0-9]$", label):
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raise RuntimeError("Not convertable to a domain label: %s" % s)
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return label
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data = json.load(sys.stdin)
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print("""$TTL 1h
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@ IN SOA vpn03.bremen.freifunk.net. noc.bremen.freifunk.net. (
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%s ; serial
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1h ; refresh
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30m ; retry
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2d ; expiration
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1h ; caching
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)
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NS vpn02.bremen.freifunk.net.
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NS vpn03.bremen.freifunk.net.
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""" % datetime.now().strftime("%Y%m%d%H%M"))
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for node in data.values():
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try:
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for address in node['network']['addresses']:
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try:
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address = ipaddress.IPv6Address(address)
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except ValueError:
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continue
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if address.is_link_local or address.is_private:
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continue
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print("%-15s AAAA %s" % (str_to_domainlabel(node['hostname']), address))
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except:
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pass
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