Merge branch 'crans_dev' into 'crans'
Crans dev See merge request nounous/re2o-dns!1
This commit is contained in:
Charlie Jacomme
commit
19466c5f1f
1 changed files with 267 additions and 212 deletions
479
main.py
479
main.py
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@ -1,16 +1,17 @@
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#!/usr/bin/env python3
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import argparse
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from configparser import ConfigParser
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import socket
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import datetime
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from multiprocessing import Pool
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import netaddr
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import os
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import socket
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import sys
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from re2oapi import Re2oAPIClient
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import sys
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import os
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path =(os.path.dirname(os.path.abspath(__file__)))
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path = os.path.dirname(os.path.abspath(__file__))
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config = ConfigParser()
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config.read(path+'/config.ini')
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@ -18,14 +19,17 @@ api_hostname = config.get('Re2o', 'hostname')
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api_password = config.get('Re2o', 'password')
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api_username = config.get('Re2o', 'username')
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template_soa = ("$ORIGIN {zone}.\n"
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"@ IN SOA {ns}. {mail} (\n"
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" {serial} ; serial\n"
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" {refresh} ; refresh\n"
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" {retry} ; retry\n"
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" {expire} ; expire\n"
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" {ttl} ; ttl\n"
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")")
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template_soa = (
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"$ORIGIN {zone}.\n"
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"@ IN SOA {ns}. {mail} (\n"
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" {serial} ; serial\n"
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" {refresh} ; refresh\n"
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" {retry} ; retry\n"
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" {expire} ; expire\n"
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" {ttl} ; ttl\n"
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")"
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)
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template_originv4 = "@ IN A {ipv4}"
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template_originv6 = "@ IN AAAA {ipv6}"
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template_ns = "@ IN NS {target}."
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@ -38,175 +42,200 @@ template_cname = "{hostname} IN CNAME {alias}."
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template_ptr = "{target} IN PTR {hostname}."
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template_sshfp = "{hostname} SSHFP {algo} {type} {fp}"
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template_zone = ("$TTL 2D\n"
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"{soa}\n"
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"\n"
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"{originv4}\n"
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"{originv6}\n"
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"\n"
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"{ns_records}\n"
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"\n"
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"{fp_records}\n"
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"\n"
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"{ns_records}\n"
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"{mx_records}\n"
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"\n"
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"{txt_records}\n"
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"\n"
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"{srv_records}\n"
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"\n"
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"{a_records}\n"
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"\n"
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"{aaaa_records}\n"
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"\n"
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"{cname_records}")
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template_zone = (
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"$TTL 2D\n"
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"{soa}\n"
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"\n"
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"{originv4}\n"
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"{originv6}\n"
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"\n"
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"{ns_records}\n"
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"\n"
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"{fp_records}\n"
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"\n"
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"{ns_records}\n"
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"{mx_records}\n"
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"\n"
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"{txt_records}\n"
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"\n"
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"{srv_records}\n"
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"\n"
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"{a_records}\n"
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"\n"
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"{aaaa_records}\n"
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"\n"
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"{cname_records}"
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)
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template_reverse = ("$TTL 2D\n"
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"{soa}\n"
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"\n"
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"{ns_records}\n"
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"\n"
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"{mx_records}\n"
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"\n"
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"{ptr_records}\n")
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template_reverse = (
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"$TTL 2D\n"
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"{soa}\n"
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"\n"
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"{ns_records}\n"
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"\n"
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"{mx_records}\n"
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"\n"
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"{ptr_records}\n"
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)
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def write_dns_file(zone):
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zone_name = zone['name'][1:]
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def write_dns_files(api_client):
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dns_zones = api_client.list("dns/zones")
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zone_names = {zone['name'][1:] for zone in dns_zones}
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records_to_add = {name: {'a': [], 'aaaa': [], 'cname': []} for name in zone_names}
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now = datetime.datetime.now(datetime.timezone.utc)
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serial = now.strftime("%Y%m%d") + str(int(100*(now.hour*3600 + now.minute*60 + now.second)/86400))
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def add_record(zone, record, type):
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nonlocal records_to_add
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records_to_add[zone][type].append(record)
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return False
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soa_mail_fields = zone['soa']['mail'].split('@')
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soa_mail = "{}.{}.".format(soa_mail_fields[0].replace('.', '\\.'),
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soa_mail_fields[1])
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if zone['ns_records']:
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ns = zone['ns_records'][0]['target']
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else:
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ns = "ns."+zone_name+"."
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for zone in sorted(dns_zones, key=lambda zone:zone['name'].count('.')):
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zone_name = zone['name'][1:]
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soa = template_soa.format(
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zone=zone_name,
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mail=soa_mail,
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serial=serial,
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ns=ns,
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refresh=zone['soa']['refresh'],
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retry=zone['soa']['retry'],
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expire=zone['soa']['expire'],
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ttl=zone['soa']['ttl']
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)
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now = datetime.datetime.now(datetime.timezone.utc)
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serial = now.strftime("%Y%m%d") + str(int(100*(now.hour*3600 + now.minute*60 + now.second)/86400))
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soa_mail_fields = zone['soa']['mail'].split('@')
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soa_mail = "{}.{}.".format(soa_mail_fields[0].replace('.', '\\.'),
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soa_mail_fields[1])
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if zone['ns_records']:
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ns = zone['ns_records'][0]['target']
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else:
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ns = "ns."+zone_name+"."
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soa = template_soa.format(zone=zone_name,
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mail=soa_mail,
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serial=serial,
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ns=ns,
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refresh=zone['soa']['refresh'],
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retry=zone['soa']['retry'],
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expire=zone['soa']['expire'],
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ttl=zone['soa']['ttl'])
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if zone['originv4'] is not None:
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originv4 = template_originv4.format(ipv4=zone['originv4']['ipv4'])
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else:
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originv4 = ""
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if zone['originv6'] is not None:
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originv6 = template_originv6.format(ipv6=zone['originv6'])
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else:
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originv6 = ""
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ns_records = "\n".join(
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template_ns.format(target=x['target'])
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for x in zone['ns_records']
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if zone['originv4'] is not None:
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originv4 = template_originv4.format(ipv4=zone['originv4']['ipv4'])
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else:
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originv4 = ""
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if zone['originv6'] is not None:
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originv6 = template_originv6.format(ipv6=zone['originv6'])
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else:
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originv6 = ""
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ns_records = "\n".join(
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template_ns.format(target=x['target'])
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for x in zone['ns_records']
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)
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fp_records = "\n".join(
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template_sshfp.format(
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hostname=host['hostname'],
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algo=fp['algo_id'],
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type="1",
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fp=fp['hash']['1']
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)
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fp_records = "\n".join(
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template_sshfp.format(hostname=host['hostname'], algo=fp['algo_id'], type="1", fp=fp['hash']['1'] )
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+ "\n" +
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template_sshfp.format(hostname=host['hostname'], algo=fp['algo_id'], type="2", fp=fp['hash']['2'] )
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for host in zone['sshfp_records']
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for fp in host['sshfp']
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+ "\n" +
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template_sshfp.format(
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hostname=host['hostname'],
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algo=fp['algo_id'],
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type="2",
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fp=fp['hash']['2']
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)
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mx_records = "\n".join(
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template_mx.format(priority=x['priority'],
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target=x['target'])
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for x in zone['mx_records']
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for host in zone['sshfp_records']
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for fp in host['sshfp']
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)
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mx_records = "\n".join(
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template_mx.format(
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priority=x['priority'],
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target=x['target']
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)
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txt_records = "\n".join(
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template_txt.format(field1=x['field1'],
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field2=x['field2'])
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for x in zone['txt_records']
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for x in zone['mx_records']
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)
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txt_records = "\n".join(
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template_txt.format(
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field1=x['field1'],
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field2=x['field2']
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)
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srv_records = "\n".join(
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template_srv.format(service=x['service'],
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protocol=x['protocol'],
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zone=zone_name,
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ttl=x['ttl'],
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priority=x['priority'],
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weight=x['weight'],
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port=x['port'],
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target=x['target'])
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for x in zone['srv_records']
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for x in zone['txt_records']
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)
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srv_records = "\n".join(
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template_srv.format(
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service=x['service'],
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protocol=x['protocol'],
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zone=zone_name,
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ttl=x['ttl'],
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priority=x['priority'],
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weight=x['weight'],
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port=x['port'],
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target=x['target']
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)
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for x in zone['srv_records']
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)
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a_records = "\n".join(
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template_a.format(hostname=x['hostname'],
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ipv4=x['ipv4'])
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for x in zone['a_records']
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if (True if x['hostname'] + '.' + zone_name not in zone_names else add_record(x['hostname'] + '.' + zone_name, template_a.format(hostname='@', ipv4=ip['ipv4']), 'a'))
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a_records = "\n".join(
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template_a.format(
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hostname=x['hostname'],
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ipv4=x['ipv4']
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)
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for x in zone['a_records']
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)
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aaaa_records = "\n".join(
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template_aaaa.format(hostname=x['hostname'],
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ipv6=ip['ipv6'])
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for x in zone['aaaa_records']
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for ip in x['ipv6']
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if x['ipv6'] is not None
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and (True if x['hostname'] + '.' + zone_name not in zone_names else add_record(x['hostname'] + '.' + zone_name, template_aaaa.format(hostname='@', ipv6=ip['ipv6']), 'aaaa'))
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aaaa_records = "\n".join(
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template_aaaa.format(
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hostname=x['hostname'],
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ipv6=ip['ipv6']
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)
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cname_records = "\n".join(
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template_cname.format(hostname=x['hostname'],
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alias=x['alias'])
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for x in zone['cname_records']
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if (True if x['hostname'] + '.' + zone_name not in zone_names else add_record(x['hostname'] + '.' + zone_name, template_cname.format(hostname='@', alias=x['alias']), 'cname'))
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for x in zone['aaaa_records']
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for ip in x['ipv6']
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if x['ipv6'] is not None
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)
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aaaa_records = "\n".join(
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template_aaaa.format(
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hostname=x['hostname'],
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ipv6=ip['ipv6']
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)
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for x in zone['aaaa_records']
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for ip in x['ipv6']
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if x['ipv6'] is not None
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)
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if records_to_add[zone_name]['a']:
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a_records += "\n" + "\n".join(records_to_add[zone_name]['a'])
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cname_records = "\n".join(
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template_cname.format(
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hostname=x['hostname'],
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alias=x['alias']
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)
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for x in zone['cname_records']
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)
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if records_to_add[zone_name]['aaaa']:
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aaaa_records += "\n" + "\n".join(records_to_add[zone_name]['aaaa'])
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zone_file_content = template_zone.format(
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soa=soa,
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originv4=originv4,
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originv6=originv6,
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ns_records=ns_records,
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fp_records=fp_records,
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mx_records=mx_records,
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txt_records=txt_records,
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srv_records=srv_records,
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a_records=a_records,
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aaaa_records=aaaa_records,
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cname_records=cname_records
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)
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if records_to_add[zone_name]['cname']:
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cname_records += "\n" + "\n".join(records_to_add[zone_name]['cname'])
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zone_file_content = template_zone.format(soa=soa,
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originv4=originv4,
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originv6=originv6,
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ns_records=ns_records,
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fp_records=fp_records,
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mx_records=mx_records,
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txt_records=txt_records,
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srv_records=srv_records,
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a_records=a_records,
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aaaa_records=aaaa_records,
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cname_records=cname_records)
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filename = path+'/generated/dns.{zone}.zone'.format(zone=zone_name)
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with open(filename, 'w+') as f:
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f.write(zone_file_content)
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def write_dns_files(api_client, processes):
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if processes:
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with Pool(processes) as pool:
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pool.map(write_dns_file, api_client.list("dns/zones"))
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else:
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for zone in api_client.list("dns/zones"):
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write_dns_file(zone)
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filename = path+'/generated/dns.{zone}.zone'.format(zone=zone_name)
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with open(filename, 'w+') as f:
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f.write(zone_file_content)
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def get_ip_reverse(ip, prefix_length):
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""" Truncate an ip address given a prefix length """
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ip = netaddr.IPAddress(ip)
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return '.'.join(ip.reverse_dns.split('.')[:prefix_length])
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def write_dns_reverse_file(api_client):
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""" Generate the reverve file for each reverse zone (= IpType)
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For each IpType, we generate both an Ipv4 reverse and a v6.
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|
|
@ -230,19 +259,20 @@ def write_dns_reverse_file(api_client):
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ns = "ns"+extension+"."
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soa_mail_fields = zone['soa']['mail'].split('@')
|
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soa_mail = "{}.{}.".format(soa_mail_fields[0].replace('.', '\\.'),
|
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soa_mail_fields[1])
|
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soa_mail_fields[1])
|
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ns_records = "\n".join(
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template_ns.format(target=x['target'])
|
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for x in zone['ns_records']
|
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)
|
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|
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|
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mx_records = "\n".join(
|
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template_mx.format(priority=x['priority'],
|
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target=x['target'])
|
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template_mx.format(
|
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priority=x['priority'],
|
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target=x['target']
|
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)
|
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for x in zone['mx_records']
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)
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|
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|
||||
### We start with the v4
|
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# We setup the network from the cidrs of the IpType
|
||||
|
||||
|
|
@ -254,9 +284,9 @@ def write_dns_reverse_file(api_client):
|
|||
net = netaddr.IPNetwork(net)
|
||||
# on fragmente les subnets
|
||||
# dans les tailles qui vont bien.
|
||||
if net.prefixlen > 24:
|
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if net.prefixlen > 24:
|
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subnets.extend(net.subnet(32))
|
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elif net.prefixlen > 16:
|
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elif net.prefixlen > 16:
|
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subnets.extend(net.subnet(24))
|
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elif net.prefixlen > 8:
|
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subnets.extend(net.subnet(16))
|
||||
|
|
@ -275,46 +305,53 @@ def write_dns_reverse_file(api_client):
|
|||
elif subnet.prefixlen == 24:
|
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zone_name,prefix_length = ('.'.join(rev_dns_a[1:]), 1)
|
||||
|
||||
soa = template_soa.format(zone=zone_name,
|
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mail=soa_mail,
|
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serial=serial,
|
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ns=ns,
|
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refresh=zone['soa']['refresh'],
|
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retry=zone['soa']['retry'],
|
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expire=zone['soa']['expire'],
|
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ttl=zone['soa']['ttl'])
|
||||
soa = template_soa.format(
|
||||
zone=zone_name,
|
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mail=soa_mail,
|
||||
serial=serial,
|
||||
ns=ns,
|
||||
refresh=zone['soa']['refresh'],
|
||||
retry=zone['soa']['retry'],
|
||||
expire=zone['soa']['expire'],
|
||||
ttl=zone['soa']['ttl']
|
||||
)
|
||||
|
||||
ptr_records = "\n".join(
|
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template_ptr.format(hostname=host['hostname']+extension,
|
||||
target=get_ip_reverse(host['ipv4'],prefix_length))
|
||||
for host in zone['ptr_records'] if host['ipv4'] in subnet
|
||||
template_ptr.format(
|
||||
hostname=host['hostname']+extension,
|
||||
target=get_ip_reverse(host['ipv4'],prefix_length)
|
||||
)
|
||||
zone_file_content = template_reverse.format(soa=soa,
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records)
|
||||
for host in zone['ptr_records'] if host['ipv4'] in subnet
|
||||
)
|
||||
zone_file_content = template_reverse.format(
|
||||
soa=soa,
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records
|
||||
)
|
||||
|
||||
filename = path+'/generated/dns.{zone}.zone'.format(zone=zone_name)
|
||||
with open(filename, 'w+') as f:
|
||||
f.write(zone_file_content)
|
||||
|
||||
|
||||
### Continue with the ipv6 reverse
|
||||
if zone['ptr_v6_records']:
|
||||
net = netaddr.IPNetwork(zone['prefix_v6']+"/"+str(zone['prefix_v6_length']))
|
||||
net_class = max(((net.prefixlen - 1) // 4) + 1, 1)
|
||||
net_class = max(((net.prefixlen - 1) // 4) + 1, 1)
|
||||
zone6_name = ".".join(
|
||||
netaddr.IPAddress(net.first).reverse_dns.split('.')[32 - net_class:]
|
||||
)[:-1]
|
||||
|
||||
netaddr.IPAddress(net.first).reverse_dns.split('.')[32 - net_class:]
|
||||
)[:-1]
|
||||
|
||||
soa = template_soa.format(zone=zone6_name,
|
||||
mail=soa_mail,
|
||||
serial=serial,
|
||||
ns=ns,
|
||||
refresh=zone['soa']['refresh'],
|
||||
retry=zone['soa']['retry'],
|
||||
expire=zone['soa']['expire'],
|
||||
ttl=zone['soa']['ttl'])
|
||||
soa = template_soa.format(
|
||||
zone=zone6_name,
|
||||
mail=soa_mail,
|
||||
serial=serial,
|
||||
ns=ns,
|
||||
refresh=zone['soa']['refresh'],
|
||||
retry=zone['soa']['retry'],
|
||||
expire=zone['soa']['expire'],
|
||||
ttl=zone['soa']['ttl']
|
||||
)
|
||||
|
||||
prefix_length = int((128 - net.prefixlen)/4)
|
||||
ptr_records = "\n".join(
|
||||
|
|
@ -324,43 +361,61 @@ def write_dns_reverse_file(api_client):
|
|||
)
|
||||
if zone6_name in zone_v6:
|
||||
# we already created the file, we ignore the soa
|
||||
zone_file_content = template_reverse.format(soa="",
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records)
|
||||
|
||||
zone_file_content = template_reverse.format(
|
||||
soa="",
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records
|
||||
)
|
||||
|
||||
filename = path+'/generated/dns.{zone}.zone'.format(zone=zone6_name)
|
||||
with open(filename, 'a') as f:
|
||||
f.write(zone_file_content)
|
||||
else:
|
||||
# we create the file from scratch
|
||||
zone_file_content = template_reverse.format(soa=soa,
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records)
|
||||
|
||||
zone_file_content = template_reverse.format(
|
||||
soa=soa,
|
||||
ns_records=ns_records,
|
||||
mx_records=mx_records,
|
||||
ptr_records = ptr_records
|
||||
)
|
||||
|
||||
filename = path+'/generated/dns.{zone}.zone'.format(zone=zone6_name)
|
||||
with open(filename, 'w+') as f:
|
||||
f.write(zone_file_content)
|
||||
zone_v6.append(zone6_name)
|
||||
|
||||
api_client = Re2oAPIClient(api_hostname, api_username, api_password, use_tls=False)
|
||||
api_client = Re2oAPIClient(api_hostname, api_username, api_password, use_tls=True)
|
||||
|
||||
client_hostname = socket.gethostname().split('.', 1)[0]
|
||||
|
||||
for arg in sys.argv:
|
||||
if arg=="--force":
|
||||
write_dns_files(api_client)
|
||||
if __name__ == '__main__':
|
||||
parser = argparse.ArgumentParser(description="Générer les fichiers de zone du DNS.")
|
||||
parser.add_argument('-f', '--force', '--forced', help="Forcer la régénaration des fichiers de zone.", action='store_true')
|
||||
parser.add_argument('-k', '--keep', help="Ne pas changer le statut du service.", action='store_true')
|
||||
parser.add_argument('-p', '--processes', help="Regénérer en utilisant n processus en parallèle (par défaut ne pas parallèliser).", metavar='n', nargs=1, type=int, default=[0])
|
||||
args = parser.parse_args()
|
||||
|
||||
for service in api_client.list("services/regen/"):
|
||||
if service['hostname'] == client_hostname and \
|
||||
service['service_name'] == 'dns' and \
|
||||
service['need_regen']:
|
||||
write_dns_files(api_client)
|
||||
if args.force:
|
||||
write_dns_files(api_client, args.processes[0])
|
||||
write_dns_reverse_file(api_client)
|
||||
api_client.patch(service['api_url'], data={'need_regen': False})
|
||||
ok = os.system('/usr/sbin/knotc zone-reload >/dev/null 2>&1')
|
||||
if not ok:
|
||||
os.system('/usr/sbin/knotc zone-reload')
|
||||
if not args.keep:
|
||||
for service in api_client.list("services/regen/"):
|
||||
if service['hostname'] == client_hostname and \
|
||||
service['service_name'] == 'dns' and \
|
||||
service['need_regen']:
|
||||
api_client.patch(service['api_url'], data={'need_regen': False})
|
||||
else:
|
||||
for service in api_client.list("services/regen/"):
|
||||
if service['hostname'] == client_hostname and \
|
||||
service['service_name'] == 'dns' and \
|
||||
service['need_regen']:
|
||||
write_dns_files(api_client, args.processes[0])
|
||||
write_dns_reverse_file(api_client)
|
||||
if not args.keep:
|
||||
api_client.patch(service['api_url'], data={'need_regen': False})
|
||||
|
||||
error = os.system('/usr/sbin/knotc zone-reload >/dev/null 2>&1')
|
||||
if error:
|
||||
# reload again and display the error message
|
||||
os.system('/usr/sbin/knotc zone-reload')
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue