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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os.path
try:
import GeoIP # Legacy
except ImportError:
GeoIP = None
try:
import geoip2
import geoip2.database
except ImportError:
geoip2 = None
class GeoIPResolver(object):
def __init__(self, fname):
self.fname = fname
try:
self._db = geoip2.database.Reader(fname)
self.version = 2
except Exception:
try:
self._db = GeoIP.open(fname, GeoIP.GEOIP_STANDARD)
self.version = 1
assert self._db.database_info is not None
except Exception:
raise ValueError('Invalid GeoIP database: %r' % fname)
def __del__(self):
if self.version == 2:
self._db.close()
@classmethod
def open(cls, fname):
if not GeoIP and not geoip2:
return None
if not os.path.exists(fname):
return None
return GeoIPResolver(fname)
def resolve(self, ip):
if self.version == 1:
return self._db.record_by_addr(ip) or {}
elif self.version == 2:
try:
r = self._db.city(ip)
except (ValueError, geoip2.errors.AddressNotFoundError):
return {}
# Compatibility with Legacy database.
# Some ips cannot be located to a specific country. Legacy DB used to locate them in
# continent instead of country. Do the same to not change behavior of existing code.
country, attr = (r.country, 'iso_code') if r.country.geoname_id else (r.continent, 'code')
return {
'city': r.city.name,
'country_code': getattr(country, attr),
'country_name': country.name,
'region': r.subdivisions[0].iso_code if r.subdivisions else None,
'time_zone': r.location.time_zone,
}
# compat
def record_by_addr(self, addr):
return self.resolve(addr)
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