iptogeo/tests/iptogeo.py

89 lines
2.8 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import socket
import struct
class IPToGeoException(Exception):
pass
class IPToGeo(object):
MAGIC = 0x179E08EF
VERSION = 1
REQ = 1
RESP = 0
IPV4 = 32
IPV6 = 128
IP_NOT_FOUND = 6
PACKET_SIZE = 32
ERRORS = {1 : 'Bad magic',
2 : 'Bad version',
3 : 'Bad request field' ,
4 : 'Bad IP version',
5 : 'Unsupported IP version',
6 : 'IP not found'}
def __init__(self, remote_addr='127.0.0.1', remote_port=53333, timeout=None):
self._remote_addr = remote_addr
self._remote_port = remote_port
self._timeout = timeout
self._create_socket()
def _create_socket(self):
self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._socket.connect((self._remote_addr, self._remote_port))
def _create_request(self, int_ip):
packet = ''
packet += struct.pack('<IBBBBI', IPToGeo.MAGIC, IPToGeo.VERSION, IPToGeo.REQ,
0, #err
IPToGeo.IPV4, # ip type
0) # flags
packet += struct.pack('<I', int_ip) # ipv4
packet += struct.pack('<III', 0, 0, 0) # ipv6
packet += struct.pack('<I', 0) # country code
return packet
def _check_request(self, packet):
(magic, version, req, err, ip_type, flags, ipv4, ipv6b, ipv6c, ipv6d) = struct.unpack_from('<IBBBBIIIII', packet, 0)
if magic != IPToGeo.MAGIC:
raise IPToGeoException('Invalid magic %08x' % (magic))
if err == IPToGeo.IP_NOT_FOUND: return (ipv4, None) # IP not found
if err != 0:
raise IPToGeoException(IPToGeo.ERRORS[err])
(cc0, cc1, cc2, cc3) = struct.unpack_from('BBBB', packet, 7*4)
return (ipv4, '%c%c%c%c' % (cc0, cc1, cc2, cc3))
def ip_to_geo(self, ip):
splitted_ip = [int(a) for a in ip.split('.')]
int_ip = splitted_ip[0] << 24
int_ip |= splitted_ip[1] << 16
int_ip |= splitted_ip[2] << 8
int_ip |= splitted_ip[3] << 0
packet = self._create_request(int_ip)
try:
self._socket.send(packet)
except IOError, e:
# Give another chance (we may have been disconnected due to timeout)
self._create_socket()
self._socket.send(packet)
packet = self._socket.recv(IPToGeo.PACKET_SIZE)
if not packet:
raise IPToGeoException('Error, empty packet')
(ip, country_code) = self._check_request(packet)
if country_code:
# convert to string
country_code = '%c%c' % (country_code[0], country_code[1])
return (ip, country_code)