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Convert tinydns zone files to bind
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| #!/usr/bin/env python | |
| import argparse | |
| import binascii | |
| import collections | |
| import logging | |
| from os import path | |
| import re | |
| from time import time | |
| logger = logging.getLogger(__name__) | |
| logger.addHandler(logging.StreamHandler()) | |
| logger.setLevel(logging.INFO) | |
| # record types | |
| A = collections.namedtuple('A', ['address', 'hostname', 'ttl']) | |
| AAAA = collections.namedtuple('AAAA', ['address', 'hostname', 'ttl']) | |
| CNAME = collections.namedtuple('CNAME', ['alias', 'canonical']) | |
| COMMENT = collections.namedtuple('COMMENT', ['value']) | |
| MX = collections.namedtuple('MX', ['hostname', 'priority', 'mailhost']) | |
| NS = collections.namedtuple('NS', ['hostname']) | |
| SOA = collections.namedtuple('SOA', ['ns', 'hostmaster', 'serial', 'refresh', 'retry', 'expire', 'minimum', 'ttl']) | |
| SOA.__new__.__defaults__ = (None, None, int(time()), 16384, 2048, 1048576, 2560, 3600) | |
| PTR = collections.namedtuple('PTR', ['address', 'fqdn']) | |
| TXT = collections.namedtuple('TXT', ['hostname', 'value']) | |
| ZONE = collections.namedtuple('ZONE', ['filename', 'type']) | |
| SOA_TEMPLATE = """ | |
| $TTL {7} | |
| $ORIGIN {8}. | |
| @ IN SOA {0}. {1}. ( | |
| {2} ; serial | |
| {3} ; refresh | |
| {4} ; retry | |
| {5} ; expire | |
| {6} ; minimum | |
| ) | |
| """ | |
| class Domain(object): | |
| name = None | |
| def decode_payload(orig): | |
| try: | |
| return orig.strip().decode('string-escape') | |
| except: | |
| return orig.strip().encode('utf-8').decode('unicode-escape') | |
| def parse_tinydns_data(infile): | |
| zones = {} | |
| comments = [] | |
| last_domain = Domain() | |
| def new_domain(domain): | |
| if domain: | |
| zones.setdefault(domain, []) | |
| last_domain.name = re.sub(r'^\.', '', domain) | |
| if comments: | |
| while comments[::1]: | |
| zones[last_domain.name].append(COMMENT(comments.pop())) | |
| with open(infile) as handle: | |
| for line in handle: | |
| if len(line): | |
| parts = line[1:].split(':') | |
| parts = [decode_payload(p) for p in parts] | |
| if re.match(r"#\s*[Z=\.\+C\^@&\-:']", line): | |
| continue | |
| elif line[0] == 'Z': | |
| new_domain(parts[0]) | |
| zones[last_domain.name].append(SOA(*parts[1:])) | |
| elif line[0] == '.': | |
| new_domain(parts[0]) | |
| parts[2] += '.ns.' + last_domain.name if '.' not in parts[2] else '' | |
| zones[last_domain.name].append(SOA(parts[2], 'hostmaster.' + last_domain.name)) | |
| if parts[2].endswith(last_domain.name): # skip if DNS outside domain | |
| zones[last_domain.name].append(NS(parts[2])) | |
| zones[last_domain.name].append(A(*parts[1:3])) | |
| elif line[0] == '&': | |
| new_domain(parts[0]) | |
| parts[2] += '.ns.' + last_domain.name if '.' not in parts[2] else '' | |
| zones[last_domain.name].append(NS(parts[2])) | |
| zones[last_domain.name].append(A(*parts[1:3])) | |
| elif line[0] == '#': | |
| comments.append(line[1:].strip()) | |
| elif line[0] == '=': | |
| new_domain(parts[0]) | |
| hostname = '.'.join(parts[0].split('.')[0:-2]) or '@' | |
| try: | |
| ttl = parts[2] | |
| except IndexError: | |
| ttl = '' | |
| zones[last_domain.name].append(A(parts[1], hostname, ttl)) | |
| zones[last_domain.name].append(PTR(parts[1], parts[0])) | |
| elif line[0] == '+': | |
| new_domain(None) | |
| if parts[0] in zones.keys(): | |
| hostname = '@' | |
| else: | |
| hostname = parts[0].split('.')[0] or '@' | |
| try: | |
| ttl = parts[2] | |
| except IndexError: | |
| ttl = '' | |
| zones[last_domain.name].append(A(parts[1], hostname, ttl)) | |
| elif line[0] == '^': | |
| new_domain(parts[0]) | |
| zones[last_domain.name].append(PTR(parts[1], parts[0])) | |
| elif line[0] == 'C': | |
| new_domain(None) | |
| hostname = '.'.join(parts[0].split('.')[0:-2]) | |
| zones[last_domain.name].append(CNAME(hostname, parts[1])) | |
| elif line[0] == '@': | |
| new_domain(None) | |
| hostname = parts[2] | |
| hostname += '.mx' if '.' not in parts[2] else '' | |
| if parts[2] and parts[1]: | |
| zones[last_domain.name].append(A(parts[1], hostname, '')) | |
| host = re.sub('.?' + last_domain.name + r'\.?\s*$', '', parts[0]) | |
| host = host or '@' | |
| zones[last_domain.name].append(MX(host, parts[3] or 10, hostname)) | |
| elif line[0] == "'": | |
| new_domain(None) | |
| zones[last_domain.name].append(TXT(parts[0], parts[1])) | |
| elif line[0] == ':': | |
| host = re.sub('.?' + last_domain.name + r'\.?\s*$', '', parts[0]) | |
| host = host or '@' | |
| new_domain(None) | |
| if int(parts[1]) == 16: | |
| zones[last_domain.name].append(TXT(host, parts[2][1:])) | |
| elif int(parts[1]) == 28: | |
| hostname = '.'.join(parts[0].split('.')[0:-2]) | |
| try: | |
| ttl = parts[3] | |
| except IndexError: | |
| ttl = '' | |
| ipv6l = [binascii.hexlify(ord(c).to_bytes(1, 'big')) for c in parts[2]] | |
| ipv6 = '' | |
| for i in range(int(len(ipv6l)/2)): | |
| ipv6 += ''.join([b.decode('ascii') for b in ipv6l[i*2:i*2+2]]) + ':' | |
| ipv6 = re.sub(r':0+', ':', ipv6) | |
| ipv6 = re.sub(r'::+', '::', ipv6) | |
| zones[last_domain.name].append(AAAA(ipv6.rstrip(':'), hostname, ttl)) | |
| else: | |
| logger.warning('DNS record type {n} unknown. Please add new record.'.format(n=parts[1])) | |
| elif last_domain.name: # Preserve Whitespace | |
| zones[last_domain.name].append(None) | |
| return zones | |
| def write_zone_files(zonefile_path, zones, ns): | |
| # Write out the main zone file | |
| soa = [] | |
| for zone, records in zones.items(): | |
| filename = path.join(zonefile_path, 'db.' + zone) | |
| with open(filename, 'w') as handle: | |
| skip_record = False | |
| for offset, record in enumerate(records): | |
| # Preserve Whitespace | |
| if record is None: | |
| handle.write('\n') | |
| continue | |
| if skip_record: | |
| skip_record = False | |
| continue | |
| record_type = record.__class__.__name__ | |
| if record_type == 'COMMENT': | |
| handle.write('; %s\n' % record.value) | |
| elif record_type == 'SOA' and zone not in soa: | |
| soa.append(zone) | |
| handle.write(SOA_TEMPLATE.format(*record, zone)) | |
| if ns: | |
| for s in ns: | |
| handle.write('{0:<45} IN NS {1}.\n'.format('@', s)) | |
| elif record_type in ['A', 'AAAA']: | |
| handle.write('{0:<45} {1} IN {2} {3}\n'.format(record.hostname, record.ttl, record_type, record.address)) | |
| elif record_type == 'CNAME': | |
| handle.write('{0:<45} IN CNAME {1}.\n'.format(*record)) | |
| elif record_type == 'MX': | |
| handle.write('{0:<45} IN MX {1:<5} {2}.\n'.format(*record)) | |
| elif record_type == 'NS': | |
| handle.write('{0:<45} IN NS {1}.\n'.format('@', record[0])) | |
| elif record_type == 'PTR': | |
| octets = record.address.split('.') | |
| rev_address = '{}.in-addr.arpa'.format('.'.join(octets[::1])) | |
| handle.write('{0:<45} IN TXT "{1}"\n'.format(rev_address, record.fqdn)) | |
| elif record_type == 'TXT': | |
| handle.write('{0:<45} IN TXT "{1}"\n'.format(*record)) | |
| if __name__ == '__main__': | |
| p = argparse.ArgumentParser(prog='bindify.py', description='Converts tinydns data files to BIND zone files') | |
| p.add_argument('datafile', default='data', help='tinydns data file') | |
| p.add_argument('--bind-zonefile-path', '-o', default='/etc/bind') | |
| p.add_argument('--ns', '-n', action='append') | |
| cmdl = p.parse_args() | |
| zones = parse_tinydns_data(infile=cmdl.datafile) | |
| write_zone_files(cmdl.bind_zonefile_path, zones, cmdl.ns) |
If I recall correctly, that was the reason I forked.
Can I buy you a coffee/beer?
All good. Plenty of people I have never gotten a beer or coffee for have helped me out in the same way before. :)
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The original script was not working, glad I found this one, It works great!