#!/usr/bin/python3
#
# Univention Bind
#
# SPDX-FileCopyrightText: 2001-2026 Univention GmbH
# SPDX-License-Identifier: AGPL-3.0-only

# dig axfr +nocomment +nostats +nocmd domain @server | \
#  ./import-zone ldapbase zone ttl > zone.ldif
#
# dig axfr +nocomment +nostats +nocmd office.univention.de @localhost | ./import-zone dc=mkgbank,dc=de office.univention.de 604800


import re
import sys


ldapbase = sys.argv[1]
zone = sys.argv[2]
ttl = sys.argv[3]

ldap_types = {
    'NS': 'nSRecord',
    'SOA': 'sOARecord',
    'CNAME': 'cNAMERecord',
    'A': 'aRecord',
    'MX': 'mXRecord',
    'SRV': 'sRVRecord',
    'TXT': 'tXTRecord',
    'PTR': 'pTRRecord',
}
record_pattern = re.compile('^([^\t ]+)[\t ]+([0-9]+)[\t ]+([^\t ]+)[\t ]+([^\t ]+)[\t ]+(.+)$')

_all = {}

for line in sys.stdin.readlines():
    line = line[0:-1]
    records = record_pattern.findall(line)
    if not records:
        print('WARNING:', line)
        continue
    record = records[0]

    r_full_name = record[0]

    pos = r_full_name.rfind(zone + '.')
    if pos == -1:
        print('WARNING: %s not in zone' % r_full_name)
        continue
    r_name = r_full_name[:pos]
    if r_name == '':
        r_name = '@'
    elif r_name[-1]:
        r_name = r_name[:-1]
    else:
        print('WARNING: %s is not valid' % r_full_name)

    r_ttl = record[1]
    r_class = record[2].upper()

    r_type = record[3].upper()

    r_record = record[4]

    if r_name not in _all:
        _all[r_name] = {}
    if r_type not in _all[r_name]:
        _all[r_name][r_type] = []

    if r_record not in _all[r_name][r_type]:
        _all[r_name][r_type].append(r_record)

    if r_ttl == ttl:
        pass
    elif 'ttl' in _all[r_name] and _all[r_name]['ttl'] != r_ttl:
        print('WARNING: %s: TTLs do not match: %s %s' % (r_name, _all[r_name]['ttl'], r_ttl))
    else:
        _all[r_name]['ttl'] = r_ttl


def print_record(name, record):
    print('objectClass: top')
    print('objectClass: dNSZone')
    print('zoneName: %s' % (zone,))
    print('relativeDomainName: %s' % (name,))
    for r_type, r_records in record.items():
        ldap_type = ldap_types[r_type]
        for r_record in r_records:
            print('%s: %s' % (ldap_type, r_record))
    print()


print('dn: zoneName=%s,%s' % (zone, ldapbase))
print_record('@', _all['@'])
for name, record in _all.items():
    if name == '@':
        continue
    print('dn: relativeDomainName=%s,zoneName=%s,%s' % (name, zone, ldapbase))
    print_record(name, record)
