routerbox/utils/he_ipv6/tunnelbroker.py

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2020-05-12 03:26:44 -04:00
import logging
import os
import socket
logger = logging.getLogger()
##
import requests
from pyroute2 import IPRoute
##
from . import config
class TunnelBroker(object):
url_ip = 'https://ipv4.clientinfo.square-r00t.net/'
params_ip = {'raw': '1'}
url_api = 'https://ipv4.tunnelbroker.net/nic/update'
def __init__(self, conf_xml, tun_id = None, wan_ip = True, update = True, *args, **kwargs):
self.conf_file = os.path.abspath(os.path.expanduser(conf_xml))
logger.debug('Using config path: {0}'.format(self.conf_file))
self._conf = config.Config(self.conf_file)
if tun_id:
self.cfg = self._conf.tunnels[int(tun_id)]
else:
tun_id = list(self._conf.tunnels.keys())[0]
self.cfg = self._conf.tunnels[tun_id]
self.wan = wan_ip
self.update = update
self.my_ip = None
def _get_my_ip(self):
if self.wan:
logger.debug('WAN IP tunneling enabled; fetching WAN IP.')
req = requests.get(self.url_ip, params = self.params_ip)
if not req.ok:
logger.error('Could not fetch self IP. Request returned {0}.'.format(req.status_code))
raise RuntimeError('Could not fetch self IP')
self.my_ip = config.IP4(req.json()['ip'], 32)
logger.debug('Set my_ip to {0}.'.format(self.my_ip.str))
else:
logger.debug('WAN IP tunneling disabled; fetching LAN IP.')
ipr = IPRoute()
_defrt = ipr.get_default_routes(family = socket.AF_INET)
if len(_defrt) != 1: # This (probably) WILL fail on multipath systems.
logger.error('Could not determine default route. Does this machine have a single default route?')
raise RuntimeError('Could not determine default IPv4 route')
self.my_ip = config.IP4(_defrt[0]['attrs']['RTA_PREFSRC'], 32)
logger.debug('Set my_ip to {0}.'.format(self.my_ip.str))
return(None)