mmdb-server/mmdb_server/mmdb_server.py

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#!/usr/bin/env python3
#
# mmdb-server is an open source fast API server to lookup IP addresses for their geographic location.
#
# The server is released under the AGPL version 3 or later.
#
# Copyright (C) 2022 Alexandre Dulaunoy
import configparser
import time
from ipaddress import ip_address
import json
from wsgiref.simple_server import make_server
import falcon
import maxminddb
version = "0.5"
config = configparser.ConfigParser()
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config.read('etc/server.conf')
mmdb_file = config['global'].get('mmdb_file')
pubsub = config['global'].getboolean('lookup_pubsub')
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port = config['global'].getint('port')
country_file = config['global'].get('country_file')
mmdb_files = mmdb_file.split(",")
with open(country_file) as j:
country_info = json.load(j)
if pubsub:
import redis
rdb = redis.Redis(host='127.0.0.1')
mmdbs = []
for mmdb_file in mmdb_files:
meta = {}
meta['reader'] = maxminddb.open_database(mmdb_file, maxminddb.MODE_MEMORY)
meta['description'] = meta['reader'].metadata().description
meta['build_db'] = time.strftime(
'%Y-%m-%d %H:%M:%S', time.localtime(meta['reader'].metadata().build_epoch)
)
meta['db_source'] = meta['reader'].metadata().database_type
meta['nb_nodes'] = meta['reader'].metadata().node_count
mmdbs.append(meta)
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def validIPAddress(IP: str) -> bool:
try:
type(ip_address(IP))
return True
except ValueError:
return False
def pubLookup(value: str) -> bool:
if not pubsub:
return False
rdb.publish('mmdb-server::lookup', f'{value}')
return True
def countryLookup(country: str) -> dict:
if country != 'None' or country is not None or country != 'Unknown':
if country in country_info:
return country_info[country]
else:
return {}
else:
return {}
class GeoLookup:
def on_get(self, req, resp, value):
ret = []
ua = req.get_header('User-Agent')
ips = req.access_route
if not validIPAddress(value):
resp.status = falcon.HTTP_422
resp.media = "IPv4 or IPv6 address is in an incorrect format. Dotted decimal for IPv4 or textual representation for IPv6 are required."
return
pubLookup(value=f'{value} via {ips} using {ua}')
for mmdb in mmdbs:
m = {}
georesult = mmdb['reader'].get(value)
m = mmdb.copy()
del m['reader']
georesult['meta'] = m
georesult['ip'] = value
if georesult['country']['iso_code'] != 'None':
georesult['country_info'] = countryLookup(country=georesult['country']['iso_code'])
else:
georesult['country_info'] = {}
ret.append(georesult)
resp.media = ret
return
class MyGeoLookup:
def on_get(self, req, resp):
ret = []
ips = req.access_route
for mmdb in mmdbs:
georesult = mmdb['reader'].get(ips[0])
m = mmdb.copy()
del m['reader']
georesult['meta'] = m
georesult['ip'] = ips[0]
if georesult['country']['iso_code'] != 'None':
georesult['country_info'] = countryLookup(country=georesult['country']['iso_code'])
else:
georesult['country_info'] = {}
ret.append(georesult)
resp.media = ret
return
app = falcon.App()
app.add_route('/geolookup/{value}', GeoLookup())
app.add_route('/', MyGeoLookup())
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def main():
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with make_server('', port, app) as httpd:
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print(f'Serving on port {port}...')
httpd.serve_forever()
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if __name__ == '__main__':
main()