258 lines
10 KiB
Python
258 lines
10 KiB
Python
import os
|
|
import re
|
|
from ctypes import c_char_p
|
|
|
|
from django.core.validators import ipv4_re
|
|
from django.contrib.gis.geoip.libgeoip import GEOIP_SETTINGS
|
|
from django.contrib.gis.geoip.prototypes import (
|
|
GeoIPRecord, GeoIPTag, GeoIP_open, GeoIP_delete, GeoIP_database_info,
|
|
GeoIP_lib_version, GeoIP_record_by_addr, GeoIP_record_by_name,
|
|
GeoIP_country_code_by_addr, GeoIP_country_code_by_name,
|
|
GeoIP_country_name_by_addr, GeoIP_country_name_by_name)
|
|
|
|
# Regular expressions for recognizing the GeoIP free database editions.
|
|
free_regex = re.compile(r'^GEO-\d{3}FREE')
|
|
lite_regex = re.compile(r'^GEO-\d{3}LITE')
|
|
|
|
#### GeoIP classes ####
|
|
class GeoIPException(Exception): pass
|
|
|
|
class GeoIP(object):
|
|
# The flags for GeoIP memory caching.
|
|
# GEOIP_STANDARD - read database from filesystem, uses least memory.
|
|
#
|
|
# GEOIP_MEMORY_CACHE - load database into memory, faster performance
|
|
# but uses more memory
|
|
#
|
|
# GEOIP_CHECK_CACHE - check for updated database. If database has been
|
|
# updated, reload filehandle and/or memory cache. This option
|
|
# is not thread safe.
|
|
#
|
|
# GEOIP_INDEX_CACHE - just cache the most frequently accessed index
|
|
# portion of the database, resulting in faster lookups than
|
|
# GEOIP_STANDARD, but less memory usage than GEOIP_MEMORY_CACHE -
|
|
# useful for larger databases such as GeoIP Organization and
|
|
# GeoIP City. Note, for GeoIP Country, Region and Netspeed
|
|
# databases, GEOIP_INDEX_CACHE is equivalent to GEOIP_MEMORY_CACHE
|
|
#
|
|
# GEOIP_MMAP_CACHE - load database into mmap shared memory ( not available
|
|
# on Windows).
|
|
GEOIP_STANDARD = 0
|
|
GEOIP_MEMORY_CACHE = 1
|
|
GEOIP_CHECK_CACHE = 2
|
|
GEOIP_INDEX_CACHE = 4
|
|
GEOIP_MMAP_CACHE = 8
|
|
cache_options = dict((opt, None) for opt in (0, 1, 2, 4, 8))
|
|
|
|
# Paths to the city & country binary databases.
|
|
_city_file = ''
|
|
_country_file = ''
|
|
|
|
# Initially, pointers to GeoIP file references are NULL.
|
|
_city = None
|
|
_country = None
|
|
|
|
def __init__(self, path=None, cache=0, country=None, city=None):
|
|
"""
|
|
Initializes the GeoIP object, no parameters are required to use default
|
|
settings. Keyword arguments may be passed in to customize the locations
|
|
of the GeoIP data sets.
|
|
|
|
* path: Base directory to where GeoIP data is located or the full path
|
|
to where the city or country data files (*.dat) are located.
|
|
Assumes that both the city and country data sets are located in
|
|
this directory; overrides the GEOIP_PATH settings attribute.
|
|
|
|
* cache: The cache settings when opening up the GeoIP datasets,
|
|
and may be an integer in (0, 1, 2, 4, 8) corresponding to
|
|
the GEOIP_STANDARD, GEOIP_MEMORY_CACHE, GEOIP_CHECK_CACHE,
|
|
GEOIP_INDEX_CACHE, and GEOIP_MMAP_CACHE, `GeoIPOptions` C API
|
|
settings, respectively. Defaults to 0, meaning that the data is read
|
|
from the disk.
|
|
|
|
* country: The name of the GeoIP country data file. Defaults to
|
|
'GeoIP.dat'; overrides the GEOIP_COUNTRY settings attribute.
|
|
|
|
* city: The name of the GeoIP city data file. Defaults to
|
|
'GeoLiteCity.dat'; overrides the GEOIP_CITY settings attribute.
|
|
"""
|
|
# Checking the given cache option.
|
|
if cache in self.cache_options:
|
|
self._cache = cache
|
|
else:
|
|
raise GeoIPException('Invalid GeoIP caching option: %s' % cache)
|
|
|
|
# Getting the GeoIP data path.
|
|
if not path:
|
|
path = GEOIP_SETTINGS.get('GEOIP_PATH', None)
|
|
if not path: raise GeoIPException('GeoIP path must be provided via parameter or the GEOIP_PATH setting.')
|
|
if not isinstance(path, basestring):
|
|
raise TypeError('Invalid path type: %s' % type(path).__name__)
|
|
|
|
if os.path.isdir(path):
|
|
# Constructing the GeoIP database filenames using the settings
|
|
# dictionary. If the database files for the GeoLite country
|
|
# and/or city datasets exist, then try and open them.
|
|
country_db = os.path.join(path, country or GEOIP_SETTINGS.get('GEOIP_COUNTRY', 'GeoIP.dat'))
|
|
if os.path.isfile(country_db):
|
|
self._country = GeoIP_open(country_db, cache)
|
|
self._country_file = country_db
|
|
|
|
city_db = os.path.join(path, city or GEOIP_SETTINGS.get('GEOIP_CITY', 'GeoLiteCity.dat'))
|
|
if os.path.isfile(city_db):
|
|
self._city = GeoIP_open(city_db, cache)
|
|
self._city_file = city_db
|
|
elif os.path.isfile(path):
|
|
# Otherwise, some detective work will be needed to figure
|
|
# out whether the given database path is for the GeoIP country
|
|
# or city databases.
|
|
ptr = GeoIP_open(path, cache)
|
|
info = GeoIP_database_info(ptr)
|
|
if lite_regex.match(info):
|
|
# GeoLite City database detected.
|
|
self._city = ptr
|
|
self._city_file = path
|
|
elif free_regex.match(info):
|
|
# GeoIP Country database detected.
|
|
self._country = ptr
|
|
self._country_file = path
|
|
else:
|
|
raise GeoIPException('Unable to recognize database edition: %s' % info)
|
|
else:
|
|
raise GeoIPException('GeoIP path must be a valid file or directory.')
|
|
|
|
def __del__(self):
|
|
# Cleaning any GeoIP file handles lying around.
|
|
if self._country: GeoIP_delete(self._country)
|
|
if self._city: GeoIP_delete(self._city)
|
|
|
|
def _check_query(self, query, country=False, city=False, city_or_country=False):
|
|
"Helper routine for checking the query and database availability."
|
|
# Making sure a string was passed in for the query.
|
|
if not isinstance(query, basestring):
|
|
raise TypeError('GeoIP query must be a string, not type %s' % type(query).__name__)
|
|
|
|
# Extra checks for the existence of country and city databases.
|
|
if city_or_country and not (self._country or self._city):
|
|
raise GeoIPException('Invalid GeoIP country and city data files.')
|
|
elif country and not self._country:
|
|
raise GeoIPException('Invalid GeoIP country data file: %s' % self._country_file)
|
|
elif city and not self._city:
|
|
raise GeoIPException('Invalid GeoIP city data file: %s' % self._city_file)
|
|
|
|
def city(self, query):
|
|
"""
|
|
Returns a dictionary of city information for the given IP address or
|
|
Fully Qualified Domain Name (FQDN). Some information in the dictionary
|
|
may be undefined (None).
|
|
"""
|
|
self._check_query(query, city=True)
|
|
if ipv4_re.match(query):
|
|
# If an IP address was passed in
|
|
return GeoIP_record_by_addr(self._city, c_char_p(query))
|
|
else:
|
|
# If a FQDN was passed in.
|
|
return GeoIP_record_by_name(self._city, c_char_p(query))
|
|
|
|
def country_code(self, query):
|
|
"Returns the country code for the given IP Address or FQDN."
|
|
self._check_query(query, city_or_country=True)
|
|
if self._country:
|
|
if ipv4_re.match(query):
|
|
return GeoIP_country_code_by_addr(self._country, query)
|
|
else:
|
|
return GeoIP_country_code_by_name(self._country, query)
|
|
else:
|
|
return self.city(query)['country_code']
|
|
|
|
def country_name(self, query):
|
|
"Returns the country name for the given IP Address or FQDN."
|
|
self._check_query(query, city_or_country=True)
|
|
if self._country:
|
|
if ipv4_re.match(query):
|
|
return GeoIP_country_name_by_addr(self._country, query)
|
|
else:
|
|
return GeoIP_country_name_by_name(self._country, query)
|
|
else:
|
|
return self.city(query)['country_name']
|
|
|
|
def country(self, query):
|
|
"""
|
|
Returns a dictonary with with the country code and name when given an
|
|
IP address or a Fully Qualified Domain Name (FQDN). For example, both
|
|
'24.124.1.80' and 'djangoproject.com' are valid parameters.
|
|
"""
|
|
# Returning the country code and name
|
|
return {'country_code' : self.country_code(query),
|
|
'country_name' : self.country_name(query),
|
|
}
|
|
|
|
#### Coordinate retrieval routines ####
|
|
def coords(self, query, ordering=('longitude', 'latitude')):
|
|
cdict = self.city(query)
|
|
if cdict is None: return None
|
|
else: return tuple(cdict[o] for o in ordering)
|
|
|
|
def lon_lat(self, query):
|
|
"Returns a tuple of the (longitude, latitude) for the given query."
|
|
return self.coords(query)
|
|
|
|
def lat_lon(self, query):
|
|
"Returns a tuple of the (latitude, longitude) for the given query."
|
|
return self.coords(query, ('latitude', 'longitude'))
|
|
|
|
def geos(self, query):
|
|
"Returns a GEOS Point object for the given query."
|
|
ll = self.lon_lat(query)
|
|
if ll:
|
|
from django.contrib.gis.geos import Point
|
|
return Point(ll, srid=4326)
|
|
else:
|
|
return None
|
|
|
|
#### GeoIP Database Information Routines ####
|
|
@property
|
|
def country_info(self):
|
|
"Returns information about the GeoIP country database."
|
|
if self._country is None:
|
|
ci = 'No GeoIP Country data in "%s"' % self._country_file
|
|
else:
|
|
ci = GeoIP_database_info(self._country)
|
|
return ci
|
|
|
|
@property
|
|
def city_info(self):
|
|
"Retuns information about the GeoIP city database."
|
|
if self._city is None:
|
|
ci = 'No GeoIP City data in "%s"' % self._city_file
|
|
else:
|
|
ci = GeoIP_database_info(self._city)
|
|
return ci
|
|
|
|
@property
|
|
def info(self):
|
|
"Returns information about the GeoIP library and databases in use."
|
|
info = ''
|
|
if GeoIP_lib_version:
|
|
info += 'GeoIP Library:\n\t%s\n' % GeoIP_lib_version()
|
|
return info + 'Country:\n\t%s\nCity:\n\t%s' % (self.country_info, self.city_info)
|
|
|
|
#### Methods for compatibility w/the GeoIP-Python API. ####
|
|
@classmethod
|
|
def open(cls, full_path, cache):
|
|
return GeoIP(full_path, cache)
|
|
|
|
def _rec_by_arg(self, arg):
|
|
if self._city:
|
|
return self.city(arg)
|
|
else:
|
|
return self.country(arg)
|
|
region_by_addr = city
|
|
region_by_name = city
|
|
record_by_addr = _rec_by_arg
|
|
record_by_name = _rec_by_arg
|
|
country_code_by_addr = country_code
|
|
country_code_by_name = country_code
|
|
country_name_by_addr = country_name
|
|
country_name_by_name = country_name
|